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1// SPDX-License-Identifier: GPL-2.0-only
2/******************************************************************************
3
4 Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved.
5
6
7 Contact Information:
8 Intel Linux Wireless <ilw@linux.intel.com>
9 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
10
11 Portions of this file are based on the sample_* files provided by Wireless
12 Extensions 0.26 package and copyright (c) 1997-2003 Jean Tourrilhes
13 <jt@hpl.hp.com>
14
15 Portions of this file are based on the Host AP project,
16 Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
17 <j@w1.fi>
18 Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
19
20 Portions of ipw2100_mod_firmware_load, ipw2100_do_mod_firmware_load, and
21 ipw2100_fw_load are loosely based on drivers/sound/sound_firmware.c
22 available in the 2.4.25 kernel sources, and are copyright (c) Alan Cox
23
24******************************************************************************/
25/*
26
27 Initial driver on which this is based was developed by Janusz Gorycki,
28 Maciej Urbaniak, and Maciej Sosnowski.
29
30 Promiscuous mode support added by Jacek Wysoczynski and Maciej Urbaniak.
31
32Theory of Operation
33
34Tx - Commands and Data
35
36Firmware and host share a circular queue of Transmit Buffer Descriptors (TBDs)
37Each TBD contains a pointer to the physical (dma_addr_t) address of data being
38sent to the firmware as well as the length of the data.
39
40The host writes to the TBD queue at the WRITE index. The WRITE index points
41to the _next_ packet to be written and is advanced when after the TBD has been
42filled.
43
44The firmware pulls from the TBD queue at the READ index. The READ index points
45to the currently being read entry, and is advanced once the firmware is
46done with a packet.
47
48When data is sent to the firmware, the first TBD is used to indicate to the
49firmware if a Command or Data is being sent. If it is Command, all of the
50command information is contained within the physical address referred to by the
51TBD. If it is Data, the first TBD indicates the type of data packet, number
52of fragments, etc. The next TBD then refers to the actual packet location.
53
54The Tx flow cycle is as follows:
55
561) ipw2100_tx() is called by kernel with SKB to transmit
572) Packet is move from the tx_free_list and appended to the transmit pending
58 list (tx_pend_list)
593) work is scheduled to move pending packets into the shared circular queue.
604) when placing packet in the circular queue, the incoming SKB is DMA mapped
61 to a physical address. That address is entered into a TBD. Two TBDs are
62 filled out. The first indicating a data packet, the second referring to the
63 actual payload data.
645) the packet is removed from tx_pend_list and placed on the end of the
65 firmware pending list (fw_pend_list)
666) firmware is notified that the WRITE index has
677) Once the firmware has processed the TBD, INTA is triggered.
688) For each Tx interrupt received from the firmware, the READ index is checked
69 to see which TBDs are done being processed.
709) For each TBD that has been processed, the ISR pulls the oldest packet
71 from the fw_pend_list.
7210)The packet structure contained in the fw_pend_list is then used
73 to unmap the DMA address and to free the SKB originally passed to the driver
74 from the kernel.
7511)The packet structure is placed onto the tx_free_list
76
77The above steps are the same for commands, only the msg_free_list/msg_pend_list
78are used instead of tx_free_list/tx_pend_list
79
80...
81
82Critical Sections / Locking :
83
84There are two locks utilized. The first is the low level lock (priv->low_lock)
85that protects the following:
86
87- Access to the Tx/Rx queue lists via priv->low_lock. The lists are as follows:
88
89 tx_free_list : Holds pre-allocated Tx buffers.
90 TAIL modified in __ipw2100_tx_process()
91 HEAD modified in ipw2100_tx()
92
93 tx_pend_list : Holds used Tx buffers waiting to go into the TBD ring
94 TAIL modified ipw2100_tx()
95 HEAD modified by ipw2100_tx_send_data()
96
97 msg_free_list : Holds pre-allocated Msg (Command) buffers
98 TAIL modified in __ipw2100_tx_process()
99 HEAD modified in ipw2100_hw_send_command()
100
101 msg_pend_list : Holds used Msg buffers waiting to go into the TBD ring
102 TAIL modified in ipw2100_hw_send_command()
103 HEAD modified in ipw2100_tx_send_commands()
104
105 The flow of data on the TX side is as follows:
106
107 MSG_FREE_LIST + COMMAND => MSG_PEND_LIST => TBD => MSG_FREE_LIST
108 TX_FREE_LIST + DATA => TX_PEND_LIST => TBD => TX_FREE_LIST
109
110 The methods that work on the TBD ring are protected via priv->low_lock.
111
112- The internal data state of the device itself
113- Access to the firmware read/write indexes for the BD queues
114 and associated logic
115
116All external entry functions are locked with the priv->action_lock to ensure
117that only one external action is invoked at a time.
118
119
120*/
121
122#include <linux/compiler.h>
123#include <linux/errno.h>
124#include <linux/if_arp.h>
125#include <linux/in6.h>
126#include <linux/in.h>
127#include <linux/ip.h>
128#include <linux/kernel.h>
129#include <linux/kmod.h>
130#include <linux/module.h>
131#include <linux/netdevice.h>
132#include <linux/ethtool.h>
133#include <linux/pci.h>
134#include <linux/dma-mapping.h>
135#include <linux/proc_fs.h>
136#include <linux/skbuff.h>
137#include <linux/uaccess.h>
138#include <asm/io.h>
139#include <linux/fs.h>
140#include <linux/mm.h>
141#include <linux/slab.h>
142#include <linux/unistd.h>
143#include <linux/stringify.h>
144#include <linux/tcp.h>
145#include <linux/types.h>
146#include <linux/time.h>
147#include <linux/firmware.h>
148#include <linux/acpi.h>
149#include <linux/ctype.h>
150#include <linux/pm_qos.h>
151
152#include <net/lib80211.h>
153
154#include "ipw2100.h"
155#include "ipw.h"
156
157#define IPW2100_VERSION "git-1.2.2"
158
159#define DRV_NAME "ipw2100"
160#define DRV_VERSION IPW2100_VERSION
161#define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2100 Network Driver"
162#define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation"
163
164static struct pm_qos_request ipw2100_pm_qos_req;
165
166/* Debugging stuff */
167#ifdef CONFIG_IPW2100_DEBUG
168#define IPW2100_RX_DEBUG /* Reception debugging */
169#endif
170
171MODULE_DESCRIPTION(DRV_DESCRIPTION);
172MODULE_VERSION(DRV_VERSION);
173MODULE_AUTHOR(DRV_COPYRIGHT);
174MODULE_LICENSE("GPL");
175
176static int debug = 0;
177static int network_mode = 0;
178static int channel = 0;
179static int associate = 0;
180static int disable = 0;
181#ifdef CONFIG_PM
182static struct ipw2100_fw ipw2100_firmware;
183#endif
184
185#include <linux/moduleparam.h>
186module_param(debug, int, 0444);
187module_param_named(mode, network_mode, int, 0444);
188module_param(channel, int, 0444);
189module_param(associate, int, 0444);
190module_param(disable, int, 0444);
191
192MODULE_PARM_DESC(debug, "debug level");
193MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
194MODULE_PARM_DESC(channel, "channel");
195MODULE_PARM_DESC(associate, "auto associate when scanning (default off)");
196MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
197
198static u32 ipw2100_debug_level = IPW_DL_NONE;
199
200#ifdef CONFIG_IPW2100_DEBUG
201#define IPW_DEBUG(level, message...) \
202do { \
203 if (ipw2100_debug_level & (level)) { \
204 printk(KERN_DEBUG "ipw2100: %s ", __func__); \
205 printk(message); \
206 } \
207} while (0)
208#else
209#define IPW_DEBUG(level, message...) do {} while (0)
210#endif /* CONFIG_IPW2100_DEBUG */
211
212#ifdef CONFIG_IPW2100_DEBUG
213static const char *command_types[] = {
214 "undefined",
215 "unused", /* HOST_ATTENTION */
216 "HOST_COMPLETE",
217 "unused", /* SLEEP */
218 "unused", /* HOST_POWER_DOWN */
219 "unused",
220 "SYSTEM_CONFIG",
221 "unused", /* SET_IMR */
222 "SSID",
223 "MANDATORY_BSSID",
224 "AUTHENTICATION_TYPE",
225 "ADAPTER_ADDRESS",
226 "PORT_TYPE",
227 "INTERNATIONAL_MODE",
228 "CHANNEL",
229 "RTS_THRESHOLD",
230 "FRAG_THRESHOLD",
231 "POWER_MODE",
232 "TX_RATES",
233 "BASIC_TX_RATES",
234 "WEP_KEY_INFO",
235 "unused",
236 "unused",
237 "unused",
238 "unused",
239 "WEP_KEY_INDEX",
240 "WEP_FLAGS",
241 "ADD_MULTICAST",
242 "CLEAR_ALL_MULTICAST",
243 "BEACON_INTERVAL",
244 "ATIM_WINDOW",
245 "CLEAR_STATISTICS",
246 "undefined",
247 "undefined",
248 "undefined",
249 "undefined",
250 "TX_POWER_INDEX",
251 "undefined",
252 "undefined",
253 "undefined",
254 "undefined",
255 "undefined",
256 "undefined",
257 "BROADCAST_SCAN",
258 "CARD_DISABLE",
259 "PREFERRED_BSSID",
260 "SET_SCAN_OPTIONS",
261 "SCAN_DWELL_TIME",
262 "SWEEP_TABLE",
263 "AP_OR_STATION_TABLE",
264 "GROUP_ORDINALS",
265 "SHORT_RETRY_LIMIT",
266 "LONG_RETRY_LIMIT",
267 "unused", /* SAVE_CALIBRATION */
268 "unused", /* RESTORE_CALIBRATION */
269 "undefined",
270 "undefined",
271 "undefined",
272 "HOST_PRE_POWER_DOWN",
273 "unused", /* HOST_INTERRUPT_COALESCING */
274 "undefined",
275 "CARD_DISABLE_PHY_OFF",
276 "MSDU_TX_RATES",
277 "undefined",
278 "SET_STATION_STAT_BITS",
279 "CLEAR_STATIONS_STAT_BITS",
280 "LEAP_ROGUE_MODE",
281 "SET_SECURITY_INFORMATION",
282 "DISASSOCIATION_BSSID",
283 "SET_WPA_ASS_IE"
284};
285#endif
286
287static const long ipw2100_frequencies[] = {
288 2412, 2417, 2422, 2427,
289 2432, 2437, 2442, 2447,
290 2452, 2457, 2462, 2467,
291 2472, 2484
292};
293
294#define FREQ_COUNT ARRAY_SIZE(ipw2100_frequencies)
295
296static struct ieee80211_rate ipw2100_bg_rates[] = {
297 { .bitrate = 10 },
298 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
299 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
300 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
301};
302
303#define RATE_COUNT ARRAY_SIZE(ipw2100_bg_rates)
304
305/* Pre-decl until we get the code solid and then we can clean it up */
306static void ipw2100_tx_send_commands(struct ipw2100_priv *priv);
307static void ipw2100_tx_send_data(struct ipw2100_priv *priv);
308static int ipw2100_adapter_setup(struct ipw2100_priv *priv);
309
310static void ipw2100_queues_initialize(struct ipw2100_priv *priv);
311static void ipw2100_queues_free(struct ipw2100_priv *priv);
312static int ipw2100_queues_allocate(struct ipw2100_priv *priv);
313
314static int ipw2100_fw_download(struct ipw2100_priv *priv,
315 struct ipw2100_fw *fw);
316static int ipw2100_get_firmware(struct ipw2100_priv *priv,
317 struct ipw2100_fw *fw);
318static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
319 size_t max);
320static void ipw2100_release_firmware(struct ipw2100_priv *priv,
321 struct ipw2100_fw *fw);
322static int ipw2100_ucode_download(struct ipw2100_priv *priv,
323 struct ipw2100_fw *fw);
324static void ipw2100_wx_event_work(struct work_struct *work);
325static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev);
326static const struct iw_handler_def ipw2100_wx_handler_def;
327
328static inline void read_register(struct net_device *dev, u32 reg, u32 * val)
329{
330 struct ipw2100_priv *priv = libipw_priv(dev);
331
332 *val = ioread32(priv->ioaddr + reg);
333 IPW_DEBUG_IO("r: 0x%08X => 0x%08X\n", reg, *val);
334}
335
336static inline void write_register(struct net_device *dev, u32 reg, u32 val)
337{
338 struct ipw2100_priv *priv = libipw_priv(dev);
339
340 iowrite32(val, priv->ioaddr + reg);
341 IPW_DEBUG_IO("w: 0x%08X <= 0x%08X\n", reg, val);
342}
343
344static inline void read_register_word(struct net_device *dev, u32 reg,
345 u16 * val)
346{
347 struct ipw2100_priv *priv = libipw_priv(dev);
348
349 *val = ioread16(priv->ioaddr + reg);
350 IPW_DEBUG_IO("r: 0x%08X => %04X\n", reg, *val);
351}
352
353static inline void read_register_byte(struct net_device *dev, u32 reg, u8 * val)
354{
355 struct ipw2100_priv *priv = libipw_priv(dev);
356
357 *val = ioread8(priv->ioaddr + reg);
358 IPW_DEBUG_IO("r: 0x%08X => %02X\n", reg, *val);
359}
360
361static inline void write_register_word(struct net_device *dev, u32 reg, u16 val)
362{
363 struct ipw2100_priv *priv = libipw_priv(dev);
364
365 iowrite16(val, priv->ioaddr + reg);
366 IPW_DEBUG_IO("w: 0x%08X <= %04X\n", reg, val);
367}
368
369static inline void write_register_byte(struct net_device *dev, u32 reg, u8 val)
370{
371 struct ipw2100_priv *priv = libipw_priv(dev);
372
373 iowrite8(val, priv->ioaddr + reg);
374 IPW_DEBUG_IO("w: 0x%08X =< %02X\n", reg, val);
375}
376
377static inline void read_nic_dword(struct net_device *dev, u32 addr, u32 * val)
378{
379 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
380 addr & IPW_REG_INDIRECT_ADDR_MASK);
381 read_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
382}
383
384static inline void write_nic_dword(struct net_device *dev, u32 addr, u32 val)
385{
386 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
387 addr & IPW_REG_INDIRECT_ADDR_MASK);
388 write_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
389}
390
391static inline void read_nic_word(struct net_device *dev, u32 addr, u16 * val)
392{
393 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
394 addr & IPW_REG_INDIRECT_ADDR_MASK);
395 read_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
396}
397
398static inline void write_nic_word(struct net_device *dev, u32 addr, u16 val)
399{
400 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
401 addr & IPW_REG_INDIRECT_ADDR_MASK);
402 write_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
403}
404
405static inline void read_nic_byte(struct net_device *dev, u32 addr, u8 * val)
406{
407 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
408 addr & IPW_REG_INDIRECT_ADDR_MASK);
409 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
410}
411
412static inline void write_nic_byte(struct net_device *dev, u32 addr, u8 val)
413{
414 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
415 addr & IPW_REG_INDIRECT_ADDR_MASK);
416 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
417}
418
419static void write_nic_memory(struct net_device *dev, u32 addr, u32 len,
420 const u8 * buf)
421{
422 u32 aligned_addr;
423 u32 aligned_len;
424 u32 dif_len;
425 u32 i;
426
427 /* read first nibble byte by byte */
428 aligned_addr = addr & (~0x3);
429 dif_len = addr - aligned_addr;
430 if (dif_len) {
431 /* Start reading at aligned_addr + dif_len */
432 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
433 aligned_addr);
434 for (i = dif_len; i < 4; i++, buf++)
435 write_register_byte(dev,
436 IPW_REG_INDIRECT_ACCESS_DATA + i,
437 *buf);
438
439 len -= dif_len;
440 aligned_addr += 4;
441 }
442
443 /* read DWs through autoincrement registers */
444 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
445 aligned_len = len & (~0x3);
446 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
447 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, *(u32 *) buf);
448
449 /* copy the last nibble */
450 dif_len = len - aligned_len;
451 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
452 for (i = 0; i < dif_len; i++, buf++)
453 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i,
454 *buf);
455}
456
457static void read_nic_memory(struct net_device *dev, u32 addr, u32 len,
458 u8 * buf)
459{
460 u32 aligned_addr;
461 u32 aligned_len;
462 u32 dif_len;
463 u32 i;
464
465 /* read first nibble byte by byte */
466 aligned_addr = addr & (~0x3);
467 dif_len = addr - aligned_addr;
468 if (dif_len) {
469 /* Start reading at aligned_addr + dif_len */
470 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
471 aligned_addr);
472 for (i = dif_len; i < 4; i++, buf++)
473 read_register_byte(dev,
474 IPW_REG_INDIRECT_ACCESS_DATA + i,
475 buf);
476
477 len -= dif_len;
478 aligned_addr += 4;
479 }
480
481 /* read DWs through autoincrement registers */
482 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
483 aligned_len = len & (~0x3);
484 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
485 read_register(dev, IPW_REG_AUTOINCREMENT_DATA, (u32 *) buf);
486
487 /* copy the last nibble */
488 dif_len = len - aligned_len;
489 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
490 for (i = 0; i < dif_len; i++, buf++)
491 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i, buf);
492}
493
494static bool ipw2100_hw_is_adapter_in_system(struct net_device *dev)
495{
496 u32 dbg;
497
498 read_register(dev, IPW_REG_DOA_DEBUG_AREA_START, &dbg);
499
500 return dbg == IPW_DATA_DOA_DEBUG_VALUE;
501}
502
503static int ipw2100_get_ordinal(struct ipw2100_priv *priv, u32 ord,
504 void *val, u32 * len)
505{
506 struct ipw2100_ordinals *ordinals = &priv->ordinals;
507 u32 addr;
508 u32 field_info;
509 u16 field_len;
510 u16 field_count;
511 u32 total_length;
512
513 if (ordinals->table1_addr == 0) {
514 printk(KERN_WARNING DRV_NAME ": attempt to use fw ordinals "
515 "before they have been loaded.\n");
516 return -EINVAL;
517 }
518
519 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
520 if (*len < IPW_ORD_TAB_1_ENTRY_SIZE) {
521 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
522
523 printk(KERN_WARNING DRV_NAME
524 ": ordinal buffer length too small, need %zd\n",
525 IPW_ORD_TAB_1_ENTRY_SIZE);
526
527 return -EINVAL;
528 }
529
530 read_nic_dword(priv->net_dev,
531 ordinals->table1_addr + (ord << 2), &addr);
532 read_nic_dword(priv->net_dev, addr, val);
533
534 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
535
536 return 0;
537 }
538
539 if (IS_ORDINAL_TABLE_TWO(ordinals, ord)) {
540
541 ord -= IPW_START_ORD_TAB_2;
542
543 /* get the address of statistic */
544 read_nic_dword(priv->net_dev,
545 ordinals->table2_addr + (ord << 3), &addr);
546
547 /* get the second DW of statistics ;
548 * two 16-bit words - first is length, second is count */
549 read_nic_dword(priv->net_dev,
550 ordinals->table2_addr + (ord << 3) + sizeof(u32),
551 &field_info);
552
553 /* get each entry length */
554 field_len = *((u16 *) & field_info);
555
556 /* get number of entries */
557 field_count = *(((u16 *) & field_info) + 1);
558
559 /* abort if no enough memory */
560 total_length = field_len * field_count;
561 if (total_length > *len) {
562 *len = total_length;
563 return -EINVAL;
564 }
565
566 *len = total_length;
567 if (!total_length)
568 return 0;
569
570 /* read the ordinal data from the SRAM */
571 read_nic_memory(priv->net_dev, addr, total_length, val);
572
573 return 0;
574 }
575
576 printk(KERN_WARNING DRV_NAME ": ordinal %d neither in table 1 nor "
577 "in table 2\n", ord);
578
579 return -EINVAL;
580}
581
582static int ipw2100_set_ordinal(struct ipw2100_priv *priv, u32 ord, u32 * val,
583 u32 * len)
584{
585 struct ipw2100_ordinals *ordinals = &priv->ordinals;
586 u32 addr;
587
588 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
589 if (*len != IPW_ORD_TAB_1_ENTRY_SIZE) {
590 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
591 IPW_DEBUG_INFO("wrong size\n");
592 return -EINVAL;
593 }
594
595 read_nic_dword(priv->net_dev,
596 ordinals->table1_addr + (ord << 2), &addr);
597
598 write_nic_dword(priv->net_dev, addr, *val);
599
600 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
601
602 return 0;
603 }
604
605 IPW_DEBUG_INFO("wrong table\n");
606 if (IS_ORDINAL_TABLE_TWO(ordinals, ord))
607 return -EINVAL;
608
609 return -EINVAL;
610}
611
612static char *snprint_line(char *buf, size_t count,
613 const u8 * data, u32 len, u32 ofs)
614{
615 int out, i, j, l;
616 char c;
617
618 out = scnprintf(buf, count, "%08X", ofs);
619
620 for (l = 0, i = 0; i < 2; i++) {
621 out += scnprintf(buf + out, count - out, " ");
622 for (j = 0; j < 8 && l < len; j++, l++)
623 out += scnprintf(buf + out, count - out, "%02X ",
624 data[(i * 8 + j)]);
625 for (; j < 8; j++)
626 out += scnprintf(buf + out, count - out, " ");
627 }
628
629 out += scnprintf(buf + out, count - out, " ");
630 for (l = 0, i = 0; i < 2; i++) {
631 out += scnprintf(buf + out, count - out, " ");
632 for (j = 0; j < 8 && l < len; j++, l++) {
633 c = data[(i * 8 + j)];
634 if (!isascii(c) || !isprint(c))
635 c = '.';
636
637 out += scnprintf(buf + out, count - out, "%c", c);
638 }
639
640 for (; j < 8; j++)
641 out += scnprintf(buf + out, count - out, " ");
642 }
643
644 return buf;
645}
646
647static void printk_buf(int level, const u8 * data, u32 len)
648{
649 char line[81];
650 u32 ofs = 0;
651 if (!(ipw2100_debug_level & level))
652 return;
653
654 while (len) {
655 printk(KERN_DEBUG "%s\n",
656 snprint_line(line, sizeof(line), &data[ofs],
657 min(len, 16U), ofs));
658 ofs += 16;
659 len -= min(len, 16U);
660 }
661}
662
663#define MAX_RESET_BACKOFF 10
664
665static void schedule_reset(struct ipw2100_priv *priv)
666{
667 time64_t now = ktime_get_boottime_seconds();
668
669 /* If we haven't received a reset request within the backoff period,
670 * then we can reset the backoff interval so this reset occurs
671 * immediately */
672 if (priv->reset_backoff &&
673 (now - priv->last_reset > priv->reset_backoff))
674 priv->reset_backoff = 0;
675
676 priv->last_reset = now;
677
678 if (!(priv->status & STATUS_RESET_PENDING)) {
679 IPW_DEBUG_INFO("%s: Scheduling firmware restart (%llds).\n",
680 priv->net_dev->name, priv->reset_backoff);
681 netif_carrier_off(priv->net_dev);
682 netif_stop_queue(priv->net_dev);
683 priv->status |= STATUS_RESET_PENDING;
684 if (priv->reset_backoff)
685 schedule_delayed_work(&priv->reset_work,
686 priv->reset_backoff * HZ);
687 else
688 schedule_delayed_work(&priv->reset_work, 0);
689
690 if (priv->reset_backoff < MAX_RESET_BACKOFF)
691 priv->reset_backoff++;
692
693 wake_up_interruptible(&priv->wait_command_queue);
694 } else
695 IPW_DEBUG_INFO("%s: Firmware restart already in progress.\n",
696 priv->net_dev->name);
697
698}
699
700#define HOST_COMPLETE_TIMEOUT (2 * HZ)
701static int ipw2100_hw_send_command(struct ipw2100_priv *priv,
702 struct host_command *cmd)
703{
704 struct list_head *element;
705 struct ipw2100_tx_packet *packet;
706 unsigned long flags;
707 int err = 0;
708
709 IPW_DEBUG_HC("Sending %s command (#%d), %d bytes\n",
710 command_types[cmd->host_command], cmd->host_command,
711 cmd->host_command_length);
712 printk_buf(IPW_DL_HC, (u8 *) cmd->host_command_parameters,
713 cmd->host_command_length);
714
715 spin_lock_irqsave(&priv->low_lock, flags);
716
717 if (priv->fatal_error) {
718 IPW_DEBUG_INFO
719 ("Attempt to send command while hardware in fatal error condition.\n");
720 err = -EIO;
721 goto fail_unlock;
722 }
723
724 if (!(priv->status & STATUS_RUNNING)) {
725 IPW_DEBUG_INFO
726 ("Attempt to send command while hardware is not running.\n");
727 err = -EIO;
728 goto fail_unlock;
729 }
730
731 if (priv->status & STATUS_CMD_ACTIVE) {
732 IPW_DEBUG_INFO
733 ("Attempt to send command while another command is pending.\n");
734 err = -EBUSY;
735 goto fail_unlock;
736 }
737
738 if (list_empty(&priv->msg_free_list)) {
739 IPW_DEBUG_INFO("no available msg buffers\n");
740 goto fail_unlock;
741 }
742
743 priv->status |= STATUS_CMD_ACTIVE;
744 priv->messages_sent++;
745
746 element = priv->msg_free_list.next;
747
748 packet = list_entry(element, struct ipw2100_tx_packet, list);
749 packet->jiffy_start = jiffies;
750
751 /* initialize the firmware command packet */
752 packet->info.c_struct.cmd->host_command_reg = cmd->host_command;
753 packet->info.c_struct.cmd->host_command_reg1 = cmd->host_command1;
754 packet->info.c_struct.cmd->host_command_len_reg =
755 cmd->host_command_length;
756 packet->info.c_struct.cmd->sequence = cmd->host_command_sequence;
757
758 memcpy(packet->info.c_struct.cmd->host_command_params_reg,
759 cmd->host_command_parameters,
760 sizeof(packet->info.c_struct.cmd->host_command_params_reg));
761
762 list_del(element);
763 DEC_STAT(&priv->msg_free_stat);
764
765 list_add_tail(element, &priv->msg_pend_list);
766 INC_STAT(&priv->msg_pend_stat);
767
768 ipw2100_tx_send_commands(priv);
769 ipw2100_tx_send_data(priv);
770
771 spin_unlock_irqrestore(&priv->low_lock, flags);
772
773 /*
774 * We must wait for this command to complete before another
775 * command can be sent... but if we wait more than 3 seconds
776 * then there is a problem.
777 */
778
779 err =
780 wait_event_interruptible_timeout(priv->wait_command_queue,
781 !(priv->
782 status & STATUS_CMD_ACTIVE),
783 HOST_COMPLETE_TIMEOUT);
784
785 if (err == 0) {
786 IPW_DEBUG_INFO("Command completion failed out after %dms.\n",
787 1000 * (HOST_COMPLETE_TIMEOUT / HZ));
788 priv->fatal_error = IPW2100_ERR_MSG_TIMEOUT;
789 priv->status &= ~STATUS_CMD_ACTIVE;
790 schedule_reset(priv);
791 return -EIO;
792 }
793
794 if (priv->fatal_error) {
795 printk(KERN_WARNING DRV_NAME ": %s: firmware fatal error\n",
796 priv->net_dev->name);
797 return -EIO;
798 }
799
800 /* !!!!! HACK TEST !!!!!
801 * When lots of debug trace statements are enabled, the driver
802 * doesn't seem to have as many firmware restart cycles...
803 *
804 * As a test, we're sticking in a 1/100s delay here */
805 schedule_timeout_uninterruptible(msecs_to_jiffies(10));
806
807 return 0;
808
809 fail_unlock:
810 spin_unlock_irqrestore(&priv->low_lock, flags);
811
812 return err;
813}
814
815/*
816 * Verify the values and data access of the hardware
817 * No locks needed or used. No functions called.
818 */
819static int ipw2100_verify(struct ipw2100_priv *priv)
820{
821 u32 data1, data2;
822 u32 address;
823
824 u32 val1 = 0x76543210;
825 u32 val2 = 0xFEDCBA98;
826
827 /* Domain 0 check - all values should be DOA_DEBUG */
828 for (address = IPW_REG_DOA_DEBUG_AREA_START;
829 address < IPW_REG_DOA_DEBUG_AREA_END; address += sizeof(u32)) {
830 read_register(priv->net_dev, address, &data1);
831 if (data1 != IPW_DATA_DOA_DEBUG_VALUE)
832 return -EIO;
833 }
834
835 /* Domain 1 check - use arbitrary read/write compare */
836 for (address = 0; address < 5; address++) {
837 /* The memory area is not used now */
838 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
839 val1);
840 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
841 val2);
842 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
843 &data1);
844 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
845 &data2);
846 if (val1 == data1 && val2 == data2)
847 return 0;
848 }
849
850 return -EIO;
851}
852
853/*
854 *
855 * Loop until the CARD_DISABLED bit is the same value as the
856 * supplied parameter
857 *
858 * TODO: See if it would be more efficient to do a wait/wake
859 * cycle and have the completion event trigger the wakeup
860 *
861 */
862#define IPW_CARD_DISABLE_COMPLETE_WAIT 100 // 100 milli
863static int ipw2100_wait_for_card_state(struct ipw2100_priv *priv, int state)
864{
865 int i;
866 u32 card_state;
867 u32 len = sizeof(card_state);
868 int err;
869
870 for (i = 0; i <= IPW_CARD_DISABLE_COMPLETE_WAIT * 1000; i += 50) {
871 err = ipw2100_get_ordinal(priv, IPW_ORD_CARD_DISABLED,
872 &card_state, &len);
873 if (err) {
874 IPW_DEBUG_INFO("Query of CARD_DISABLED ordinal "
875 "failed.\n");
876 return 0;
877 }
878
879 /* We'll break out if either the HW state says it is
880 * in the state we want, or if HOST_COMPLETE command
881 * finishes */
882 if ((card_state == state) ||
883 ((priv->status & STATUS_ENABLED) ?
884 IPW_HW_STATE_ENABLED : IPW_HW_STATE_DISABLED) == state) {
885 if (state == IPW_HW_STATE_ENABLED)
886 priv->status |= STATUS_ENABLED;
887 else
888 priv->status &= ~STATUS_ENABLED;
889
890 return 0;
891 }
892
893 udelay(50);
894 }
895
896 IPW_DEBUG_INFO("ipw2100_wait_for_card_state to %s state timed out\n",
897 state ? "DISABLED" : "ENABLED");
898 return -EIO;
899}
900
901/*********************************************************************
902 Procedure : sw_reset_and_clock
903 Purpose : Asserts s/w reset, asserts clock initialization
904 and waits for clock stabilization
905 ********************************************************************/
906static int sw_reset_and_clock(struct ipw2100_priv *priv)
907{
908 int i;
909 u32 r;
910
911 // assert s/w reset
912 write_register(priv->net_dev, IPW_REG_RESET_REG,
913 IPW_AUX_HOST_RESET_REG_SW_RESET);
914
915 // wait for clock stabilization
916 for (i = 0; i < 1000; i++) {
917 udelay(IPW_WAIT_RESET_ARC_COMPLETE_DELAY);
918
919 // check clock ready bit
920 read_register(priv->net_dev, IPW_REG_RESET_REG, &r);
921 if (r & IPW_AUX_HOST_RESET_REG_PRINCETON_RESET)
922 break;
923 }
924
925 if (i == 1000)
926 return -EIO; // TODO: better error value
927
928 /* set "initialization complete" bit to move adapter to
929 * D0 state */
930 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
931 IPW_AUX_HOST_GP_CNTRL_BIT_INIT_DONE);
932
933 /* wait for clock stabilization */
934 for (i = 0; i < 10000; i++) {
935 udelay(IPW_WAIT_CLOCK_STABILIZATION_DELAY * 4);
936
937 /* check clock ready bit */
938 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
939 if (r & IPW_AUX_HOST_GP_CNTRL_BIT_CLOCK_READY)
940 break;
941 }
942
943 if (i == 10000)
944 return -EIO; /* TODO: better error value */
945
946 /* set D0 standby bit */
947 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
948 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
949 r | IPW_AUX_HOST_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
950
951 return 0;
952}
953
954/*********************************************************************
955 Procedure : ipw2100_download_firmware
956 Purpose : Initiaze adapter after power on.
957 The sequence is:
958 1. assert s/w reset first!
959 2. awake clocks & wait for clock stabilization
960 3. hold ARC (don't ask me why...)
961 4. load Dino ucode and reset/clock init again
962 5. zero-out shared mem
963 6. download f/w
964 *******************************************************************/
965static int ipw2100_download_firmware(struct ipw2100_priv *priv)
966{
967 u32 address;
968 int err;
969
970#ifndef CONFIG_PM
971 /* Fetch the firmware and microcode */
972 struct ipw2100_fw ipw2100_firmware;
973#endif
974
975 if (priv->fatal_error) {
976 IPW_DEBUG_ERROR("%s: ipw2100_download_firmware called after "
977 "fatal error %d. Interface must be brought down.\n",
978 priv->net_dev->name, priv->fatal_error);
979 return -EINVAL;
980 }
981#ifdef CONFIG_PM
982 if (!ipw2100_firmware.version) {
983 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
984 if (err) {
985 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
986 priv->net_dev->name, err);
987 priv->fatal_error = IPW2100_ERR_FW_LOAD;
988 goto fail;
989 }
990 }
991#else
992 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
993 if (err) {
994 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
995 priv->net_dev->name, err);
996 priv->fatal_error = IPW2100_ERR_FW_LOAD;
997 goto fail;
998 }
999#endif
1000 priv->firmware_version = ipw2100_firmware.version;
1001
1002 /* s/w reset and clock stabilization */
1003 err = sw_reset_and_clock(priv);
1004 if (err) {
1005 IPW_DEBUG_ERROR("%s: sw_reset_and_clock failed: %d\n",
1006 priv->net_dev->name, err);
1007 goto fail;
1008 }
1009
1010 err = ipw2100_verify(priv);
1011 if (err) {
1012 IPW_DEBUG_ERROR("%s: ipw2100_verify failed: %d\n",
1013 priv->net_dev->name, err);
1014 goto fail;
1015 }
1016
1017 /* Hold ARC */
1018 write_nic_dword(priv->net_dev,
1019 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x80000000);
1020
1021 /* allow ARC to run */
1022 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1023
1024 /* load microcode */
1025 err = ipw2100_ucode_download(priv, &ipw2100_firmware);
1026 if (err) {
1027 printk(KERN_ERR DRV_NAME ": %s: Error loading microcode: %d\n",
1028 priv->net_dev->name, err);
1029 goto fail;
1030 }
1031
1032 /* release ARC */
1033 write_nic_dword(priv->net_dev,
1034 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x00000000);
1035
1036 /* s/w reset and clock stabilization (again!!!) */
1037 err = sw_reset_and_clock(priv);
1038 if (err) {
1039 printk(KERN_ERR DRV_NAME
1040 ": %s: sw_reset_and_clock failed: %d\n",
1041 priv->net_dev->name, err);
1042 goto fail;
1043 }
1044
1045 /* load f/w */
1046 err = ipw2100_fw_download(priv, &ipw2100_firmware);
1047 if (err) {
1048 IPW_DEBUG_ERROR("%s: Error loading firmware: %d\n",
1049 priv->net_dev->name, err);
1050 goto fail;
1051 }
1052#ifndef CONFIG_PM
1053 /*
1054 * When the .resume method of the driver is called, the other
1055 * part of the system, i.e. the ide driver could still stay in
1056 * the suspend stage. This prevents us from loading the firmware
1057 * from the disk. --YZ
1058 */
1059
1060 /* free any storage allocated for firmware image */
1061 ipw2100_release_firmware(priv, &ipw2100_firmware);
1062#endif
1063
1064 /* zero out Domain 1 area indirectly (Si requirement) */
1065 for (address = IPW_HOST_FW_SHARED_AREA0;
1066 address < IPW_HOST_FW_SHARED_AREA0_END; address += 4)
1067 write_nic_dword(priv->net_dev, address, 0);
1068 for (address = IPW_HOST_FW_SHARED_AREA1;
1069 address < IPW_HOST_FW_SHARED_AREA1_END; address += 4)
1070 write_nic_dword(priv->net_dev, address, 0);
1071 for (address = IPW_HOST_FW_SHARED_AREA2;
1072 address < IPW_HOST_FW_SHARED_AREA2_END; address += 4)
1073 write_nic_dword(priv->net_dev, address, 0);
1074 for (address = IPW_HOST_FW_SHARED_AREA3;
1075 address < IPW_HOST_FW_SHARED_AREA3_END; address += 4)
1076 write_nic_dword(priv->net_dev, address, 0);
1077 for (address = IPW_HOST_FW_INTERRUPT_AREA;
1078 address < IPW_HOST_FW_INTERRUPT_AREA_END; address += 4)
1079 write_nic_dword(priv->net_dev, address, 0);
1080
1081 return 0;
1082
1083 fail:
1084 ipw2100_release_firmware(priv, &ipw2100_firmware);
1085 return err;
1086}
1087
1088static inline void ipw2100_enable_interrupts(struct ipw2100_priv *priv)
1089{
1090 if (priv->status & STATUS_INT_ENABLED)
1091 return;
1092 priv->status |= STATUS_INT_ENABLED;
1093 write_register(priv->net_dev, IPW_REG_INTA_MASK, IPW_INTERRUPT_MASK);
1094}
1095
1096static inline void ipw2100_disable_interrupts(struct ipw2100_priv *priv)
1097{
1098 if (!(priv->status & STATUS_INT_ENABLED))
1099 return;
1100 priv->status &= ~STATUS_INT_ENABLED;
1101 write_register(priv->net_dev, IPW_REG_INTA_MASK, 0x0);
1102}
1103
1104static void ipw2100_initialize_ordinals(struct ipw2100_priv *priv)
1105{
1106 struct ipw2100_ordinals *ord = &priv->ordinals;
1107
1108 IPW_DEBUG_INFO("enter\n");
1109
1110 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_1,
1111 &ord->table1_addr);
1112
1113 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_2,
1114 &ord->table2_addr);
1115
1116 read_nic_dword(priv->net_dev, ord->table1_addr, &ord->table1_size);
1117 read_nic_dword(priv->net_dev, ord->table2_addr, &ord->table2_size);
1118
1119 ord->table2_size &= 0x0000FFFF;
1120
1121 IPW_DEBUG_INFO("table 1 size: %d\n", ord->table1_size);
1122 IPW_DEBUG_INFO("table 2 size: %d\n", ord->table2_size);
1123 IPW_DEBUG_INFO("exit\n");
1124}
1125
1126static inline void ipw2100_hw_set_gpio(struct ipw2100_priv *priv)
1127{
1128 u32 reg = 0;
1129 /*
1130 * Set GPIO 3 writable by FW; GPIO 1 writable
1131 * by driver and enable clock
1132 */
1133 reg = (IPW_BIT_GPIO_GPIO3_MASK | IPW_BIT_GPIO_GPIO1_ENABLE |
1134 IPW_BIT_GPIO_LED_OFF);
1135 write_register(priv->net_dev, IPW_REG_GPIO, reg);
1136}
1137
1138static int rf_kill_active(struct ipw2100_priv *priv)
1139{
1140#define MAX_RF_KILL_CHECKS 5
1141#define RF_KILL_CHECK_DELAY 40
1142
1143 unsigned short value = 0;
1144 u32 reg = 0;
1145 int i;
1146
1147 if (!(priv->hw_features & HW_FEATURE_RFKILL)) {
1148 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1149 priv->status &= ~STATUS_RF_KILL_HW;
1150 return 0;
1151 }
1152
1153 for (i = 0; i < MAX_RF_KILL_CHECKS; i++) {
1154 udelay(RF_KILL_CHECK_DELAY);
1155 read_register(priv->net_dev, IPW_REG_GPIO, ®);
1156 value = (value << 1) | ((reg & IPW_BIT_GPIO_RF_KILL) ? 0 : 1);
1157 }
1158
1159 if (value == 0) {
1160 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
1161 priv->status |= STATUS_RF_KILL_HW;
1162 } else {
1163 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1164 priv->status &= ~STATUS_RF_KILL_HW;
1165 }
1166
1167 return (value == 0);
1168}
1169
1170static int ipw2100_get_hw_features(struct ipw2100_priv *priv)
1171{
1172 u32 addr, len;
1173 u32 val;
1174
1175 /*
1176 * EEPROM_SRAM_DB_START_ADDRESS using ordinal in ordinal table 1
1177 */
1178 len = sizeof(addr);
1179 if (ipw2100_get_ordinal
1180 (priv, IPW_ORD_EEPROM_SRAM_DB_BLOCK_START_ADDRESS, &addr, &len)) {
1181 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1182 __LINE__);
1183 return -EIO;
1184 }
1185
1186 IPW_DEBUG_INFO("EEPROM address: %08X\n", addr);
1187
1188 /*
1189 * EEPROM version is the byte at offset 0xfd in firmware
1190 * We read 4 bytes, then shift out the byte we actually want */
1191 read_nic_dword(priv->net_dev, addr + 0xFC, &val);
1192 priv->eeprom_version = (val >> 24) & 0xFF;
1193 IPW_DEBUG_INFO("EEPROM version: %d\n", priv->eeprom_version);
1194
1195 /*
1196 * HW RF Kill enable is bit 0 in byte at offset 0x21 in firmware
1197 *
1198 * notice that the EEPROM bit is reverse polarity, i.e.
1199 * bit = 0 signifies HW RF kill switch is supported
1200 * bit = 1 signifies HW RF kill switch is NOT supported
1201 */
1202 read_nic_dword(priv->net_dev, addr + 0x20, &val);
1203 if (!((val >> 24) & 0x01))
1204 priv->hw_features |= HW_FEATURE_RFKILL;
1205
1206 IPW_DEBUG_INFO("HW RF Kill: %ssupported.\n",
1207 (priv->hw_features & HW_FEATURE_RFKILL) ? "" : "not ");
1208
1209 return 0;
1210}
1211
1212/*
1213 * Start firmware execution after power on and initialization
1214 * The sequence is:
1215 * 1. Release ARC
1216 * 2. Wait for f/w initialization completes;
1217 */
1218static int ipw2100_start_adapter(struct ipw2100_priv *priv)
1219{
1220 int i;
1221 u32 inta, inta_mask, gpio;
1222
1223 IPW_DEBUG_INFO("enter\n");
1224
1225 if (priv->status & STATUS_RUNNING)
1226 return 0;
1227
1228 /*
1229 * Initialize the hw - drive adapter to DO state by setting
1230 * init_done bit. Wait for clk_ready bit and Download
1231 * fw & dino ucode
1232 */
1233 if (ipw2100_download_firmware(priv)) {
1234 printk(KERN_ERR DRV_NAME
1235 ": %s: Failed to power on the adapter.\n",
1236 priv->net_dev->name);
1237 return -EIO;
1238 }
1239
1240 /* Clear the Tx, Rx and Msg queues and the r/w indexes
1241 * in the firmware RBD and TBD ring queue */
1242 ipw2100_queues_initialize(priv);
1243
1244 ipw2100_hw_set_gpio(priv);
1245
1246 /* TODO -- Look at disabling interrupts here to make sure none
1247 * get fired during FW initialization */
1248
1249 /* Release ARC - clear reset bit */
1250 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1251
1252 /* wait for f/w initialization complete */
1253 IPW_DEBUG_FW("Waiting for f/w initialization to complete...\n");
1254 i = 5000;
1255 do {
1256 schedule_timeout_uninterruptible(msecs_to_jiffies(40));
1257 /* Todo... wait for sync command ... */
1258
1259 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1260
1261 /* check "init done" bit */
1262 if (inta & IPW2100_INTA_FW_INIT_DONE) {
1263 /* reset "init done" bit */
1264 write_register(priv->net_dev, IPW_REG_INTA,
1265 IPW2100_INTA_FW_INIT_DONE);
1266 break;
1267 }
1268
1269 /* check error conditions : we check these after the firmware
1270 * check so that if there is an error, the interrupt handler
1271 * will see it and the adapter will be reset */
1272 if (inta &
1273 (IPW2100_INTA_FATAL_ERROR | IPW2100_INTA_PARITY_ERROR)) {
1274 /* clear error conditions */
1275 write_register(priv->net_dev, IPW_REG_INTA,
1276 IPW2100_INTA_FATAL_ERROR |
1277 IPW2100_INTA_PARITY_ERROR);
1278 }
1279 } while (--i);
1280
1281 /* Clear out any pending INTAs since we aren't supposed to have
1282 * interrupts enabled at this point... */
1283 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1284 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
1285 inta &= IPW_INTERRUPT_MASK;
1286 /* Clear out any pending interrupts */
1287 if (inta & inta_mask)
1288 write_register(priv->net_dev, IPW_REG_INTA, inta);
1289
1290 IPW_DEBUG_FW("f/w initialization complete: %s\n",
1291 i ? "SUCCESS" : "FAILED");
1292
1293 if (!i) {
1294 printk(KERN_WARNING DRV_NAME
1295 ": %s: Firmware did not initialize.\n",
1296 priv->net_dev->name);
1297 return -EIO;
1298 }
1299
1300 /* allow firmware to write to GPIO1 & GPIO3 */
1301 read_register(priv->net_dev, IPW_REG_GPIO, &gpio);
1302
1303 gpio |= (IPW_BIT_GPIO_GPIO1_MASK | IPW_BIT_GPIO_GPIO3_MASK);
1304
1305 write_register(priv->net_dev, IPW_REG_GPIO, gpio);
1306
1307 /* Ready to receive commands */
1308 priv->status |= STATUS_RUNNING;
1309
1310 /* The adapter has been reset; we are not associated */
1311 priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
1312
1313 IPW_DEBUG_INFO("exit\n");
1314
1315 return 0;
1316}
1317
1318static inline void ipw2100_reset_fatalerror(struct ipw2100_priv *priv)
1319{
1320 if (!priv->fatal_error)
1321 return;
1322
1323 priv->fatal_errors[priv->fatal_index++] = priv->fatal_error;
1324 priv->fatal_index %= IPW2100_ERROR_QUEUE;
1325 priv->fatal_error = 0;
1326}
1327
1328/* NOTE: Our interrupt is disabled when this method is called */
1329static int ipw2100_power_cycle_adapter(struct ipw2100_priv *priv)
1330{
1331 u32 reg;
1332 int i;
1333
1334 IPW_DEBUG_INFO("Power cycling the hardware.\n");
1335
1336 ipw2100_hw_set_gpio(priv);
1337
1338 /* Step 1. Stop Master Assert */
1339 write_register(priv->net_dev, IPW_REG_RESET_REG,
1340 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1341
1342 /* Step 2. Wait for stop Master Assert
1343 * (not more than 50us, otherwise ret error */
1344 i = 5;
1345 do {
1346 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
1347 read_register(priv->net_dev, IPW_REG_RESET_REG, ®);
1348
1349 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1350 break;
1351 } while (--i);
1352
1353 priv->status &= ~STATUS_RESET_PENDING;
1354
1355 if (!i) {
1356 IPW_DEBUG_INFO
1357 ("exit - waited too long for master assert stop\n");
1358 return -EIO;
1359 }
1360
1361 write_register(priv->net_dev, IPW_REG_RESET_REG,
1362 IPW_AUX_HOST_RESET_REG_SW_RESET);
1363
1364 /* Reset any fatal_error conditions */
1365 ipw2100_reset_fatalerror(priv);
1366
1367 /* At this point, the adapter is now stopped and disabled */
1368 priv->status &= ~(STATUS_RUNNING | STATUS_ASSOCIATING |
1369 STATUS_ASSOCIATED | STATUS_ENABLED);
1370
1371 return 0;
1372}
1373
1374/*
1375 * Send the CARD_DISABLE_PHY_OFF command to the card to disable it
1376 *
1377 * After disabling, if the card was associated, a STATUS_ASSN_LOST will be sent.
1378 *
1379 * STATUS_CARD_DISABLE_NOTIFICATION will be sent regardless of
1380 * if STATUS_ASSN_LOST is sent.
1381 */
1382static int ipw2100_hw_phy_off(struct ipw2100_priv *priv)
1383{
1384
1385#define HW_PHY_OFF_LOOP_DELAY (msecs_to_jiffies(50))
1386
1387 struct host_command cmd = {
1388 .host_command = CARD_DISABLE_PHY_OFF,
1389 .host_command_sequence = 0,
1390 .host_command_length = 0,
1391 };
1392 int err, i;
1393 u32 val1, val2;
1394
1395 IPW_DEBUG_HC("CARD_DISABLE_PHY_OFF\n");
1396
1397 /* Turn off the radio */
1398 err = ipw2100_hw_send_command(priv, &cmd);
1399 if (err)
1400 return err;
1401
1402 for (i = 0; i < 2500; i++) {
1403 read_nic_dword(priv->net_dev, IPW2100_CONTROL_REG, &val1);
1404 read_nic_dword(priv->net_dev, IPW2100_COMMAND, &val2);
1405
1406 if ((val1 & IPW2100_CONTROL_PHY_OFF) &&
1407 (val2 & IPW2100_COMMAND_PHY_OFF))
1408 return 0;
1409
1410 schedule_timeout_uninterruptible(HW_PHY_OFF_LOOP_DELAY);
1411 }
1412
1413 return -EIO;
1414}
1415
1416static int ipw2100_enable_adapter(struct ipw2100_priv *priv)
1417{
1418 struct host_command cmd = {
1419 .host_command = HOST_COMPLETE,
1420 .host_command_sequence = 0,
1421 .host_command_length = 0
1422 };
1423 int err = 0;
1424
1425 IPW_DEBUG_HC("HOST_COMPLETE\n");
1426
1427 if (priv->status & STATUS_ENABLED)
1428 return 0;
1429
1430 mutex_lock(&priv->adapter_mutex);
1431
1432 if (rf_kill_active(priv)) {
1433 IPW_DEBUG_HC("Command aborted due to RF kill active.\n");
1434 goto fail_up;
1435 }
1436
1437 err = ipw2100_hw_send_command(priv, &cmd);
1438 if (err) {
1439 IPW_DEBUG_INFO("Failed to send HOST_COMPLETE command\n");
1440 goto fail_up;
1441 }
1442
1443 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_ENABLED);
1444 if (err) {
1445 IPW_DEBUG_INFO("%s: card not responding to init command.\n",
1446 priv->net_dev->name);
1447 goto fail_up;
1448 }
1449
1450 if (priv->stop_hang_check) {
1451 priv->stop_hang_check = 0;
1452 schedule_delayed_work(&priv->hang_check, HZ / 2);
1453 }
1454
1455 fail_up:
1456 mutex_unlock(&priv->adapter_mutex);
1457 return err;
1458}
1459
1460static int ipw2100_hw_stop_adapter(struct ipw2100_priv *priv)
1461{
1462#define HW_POWER_DOWN_DELAY (msecs_to_jiffies(100))
1463
1464 struct host_command cmd = {
1465 .host_command = HOST_PRE_POWER_DOWN,
1466 .host_command_sequence = 0,
1467 .host_command_length = 0,
1468 };
1469 int err, i;
1470 u32 reg;
1471
1472 if (!(priv->status & STATUS_RUNNING))
1473 return 0;
1474
1475 priv->status |= STATUS_STOPPING;
1476
1477 /* We can only shut down the card if the firmware is operational. So,
1478 * if we haven't reset since a fatal_error, then we can not send the
1479 * shutdown commands. */
1480 if (!priv->fatal_error) {
1481 /* First, make sure the adapter is enabled so that the PHY_OFF
1482 * command can shut it down */
1483 ipw2100_enable_adapter(priv);
1484
1485 err = ipw2100_hw_phy_off(priv);
1486 if (err)
1487 printk(KERN_WARNING DRV_NAME
1488 ": Error disabling radio %d\n", err);
1489
1490 /*
1491 * If in D0-standby mode going directly to D3 may cause a
1492 * PCI bus violation. Therefore we must change out of the D0
1493 * state.
1494 *
1495 * Sending the PREPARE_FOR_POWER_DOWN will restrict the
1496 * hardware from going into standby mode and will transition
1497 * out of D0-standby if it is already in that state.
1498 *
1499 * STATUS_PREPARE_POWER_DOWN_COMPLETE will be sent by the
1500 * driver upon completion. Once received, the driver can
1501 * proceed to the D3 state.
1502 *
1503 * Prepare for power down command to fw. This command would
1504 * take HW out of D0-standby and prepare it for D3 state.
1505 *
1506 * Currently FW does not support event notification for this
1507 * event. Therefore, skip waiting for it. Just wait a fixed
1508 * 100ms
1509 */
1510 IPW_DEBUG_HC("HOST_PRE_POWER_DOWN\n");
1511
1512 err = ipw2100_hw_send_command(priv, &cmd);
1513 if (err)
1514 printk(KERN_WARNING DRV_NAME ": "
1515 "%s: Power down command failed: Error %d\n",
1516 priv->net_dev->name, err);
1517 else
1518 schedule_timeout_uninterruptible(HW_POWER_DOWN_DELAY);
1519 }
1520
1521 priv->status &= ~STATUS_ENABLED;
1522
1523 /*
1524 * Set GPIO 3 writable by FW; GPIO 1 writable
1525 * by driver and enable clock
1526 */
1527 ipw2100_hw_set_gpio(priv);
1528
1529 /*
1530 * Power down adapter. Sequence:
1531 * 1. Stop master assert (RESET_REG[9]=1)
1532 * 2. Wait for stop master (RESET_REG[8]==1)
1533 * 3. S/w reset assert (RESET_REG[7] = 1)
1534 */
1535
1536 /* Stop master assert */
1537 write_register(priv->net_dev, IPW_REG_RESET_REG,
1538 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1539
1540 /* wait stop master not more than 50 usec.
1541 * Otherwise return error. */
1542 for (i = 5; i > 0; i--) {
1543 udelay(10);
1544
1545 /* Check master stop bit */
1546 read_register(priv->net_dev, IPW_REG_RESET_REG, ®);
1547
1548 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1549 break;
1550 }
1551
1552 if (i == 0)
1553 printk(KERN_WARNING DRV_NAME
1554 ": %s: Could now power down adapter.\n",
1555 priv->net_dev->name);
1556
1557 /* assert s/w reset */
1558 write_register(priv->net_dev, IPW_REG_RESET_REG,
1559 IPW_AUX_HOST_RESET_REG_SW_RESET);
1560
1561 priv->status &= ~(STATUS_RUNNING | STATUS_STOPPING);
1562
1563 return 0;
1564}
1565
1566static int ipw2100_disable_adapter(struct ipw2100_priv *priv)
1567{
1568 struct host_command cmd = {
1569 .host_command = CARD_DISABLE,
1570 .host_command_sequence = 0,
1571 .host_command_length = 0
1572 };
1573 int err = 0;
1574
1575 IPW_DEBUG_HC("CARD_DISABLE\n");
1576
1577 if (!(priv->status & STATUS_ENABLED))
1578 return 0;
1579
1580 /* Make sure we clear the associated state */
1581 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1582
1583 if (!priv->stop_hang_check) {
1584 priv->stop_hang_check = 1;
1585 cancel_delayed_work(&priv->hang_check);
1586 }
1587
1588 mutex_lock(&priv->adapter_mutex);
1589
1590 err = ipw2100_hw_send_command(priv, &cmd);
1591 if (err) {
1592 printk(KERN_WARNING DRV_NAME
1593 ": exit - failed to send CARD_DISABLE command\n");
1594 goto fail_up;
1595 }
1596
1597 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_DISABLED);
1598 if (err) {
1599 printk(KERN_WARNING DRV_NAME
1600 ": exit - card failed to change to DISABLED\n");
1601 goto fail_up;
1602 }
1603
1604 IPW_DEBUG_INFO("TODO: implement scan state machine\n");
1605
1606 fail_up:
1607 mutex_unlock(&priv->adapter_mutex);
1608 return err;
1609}
1610
1611static int ipw2100_set_scan_options(struct ipw2100_priv *priv)
1612{
1613 struct host_command cmd = {
1614 .host_command = SET_SCAN_OPTIONS,
1615 .host_command_sequence = 0,
1616 .host_command_length = 8
1617 };
1618 int err;
1619
1620 IPW_DEBUG_INFO("enter\n");
1621
1622 IPW_DEBUG_SCAN("setting scan options\n");
1623
1624 cmd.host_command_parameters[0] = 0;
1625
1626 if (!(priv->config & CFG_ASSOCIATE))
1627 cmd.host_command_parameters[0] |= IPW_SCAN_NOASSOCIATE;
1628 if ((priv->ieee->sec.flags & SEC_ENABLED) && priv->ieee->sec.enabled)
1629 cmd.host_command_parameters[0] |= IPW_SCAN_MIXED_CELL;
1630 if (priv->config & CFG_PASSIVE_SCAN)
1631 cmd.host_command_parameters[0] |= IPW_SCAN_PASSIVE;
1632
1633 cmd.host_command_parameters[1] = priv->channel_mask;
1634
1635 err = ipw2100_hw_send_command(priv, &cmd);
1636
1637 IPW_DEBUG_HC("SET_SCAN_OPTIONS 0x%04X\n",
1638 cmd.host_command_parameters[0]);
1639
1640 return err;
1641}
1642
1643static int ipw2100_start_scan(struct ipw2100_priv *priv)
1644{
1645 struct host_command cmd = {
1646 .host_command = BROADCAST_SCAN,
1647 .host_command_sequence = 0,
1648 .host_command_length = 4
1649 };
1650 int err;
1651
1652 IPW_DEBUG_HC("START_SCAN\n");
1653
1654 cmd.host_command_parameters[0] = 0;
1655
1656 /* No scanning if in monitor mode */
1657 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
1658 return 1;
1659
1660 if (priv->status & STATUS_SCANNING) {
1661 IPW_DEBUG_SCAN("Scan requested while already in scan...\n");
1662 return 0;
1663 }
1664
1665 IPW_DEBUG_INFO("enter\n");
1666
1667 /* Not clearing here; doing so makes iwlist always return nothing...
1668 *
1669 * We should modify the table logic to use aging tables vs. clearing
1670 * the table on each scan start.
1671 */
1672 IPW_DEBUG_SCAN("starting scan\n");
1673
1674 priv->status |= STATUS_SCANNING;
1675 err = ipw2100_hw_send_command(priv, &cmd);
1676 if (err)
1677 priv->status &= ~STATUS_SCANNING;
1678
1679 IPW_DEBUG_INFO("exit\n");
1680
1681 return err;
1682}
1683
1684static const struct libipw_geo ipw_geos[] = {
1685 { /* Restricted */
1686 "---",
1687 .bg_channels = 14,
1688 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
1689 {2427, 4}, {2432, 5}, {2437, 6},
1690 {2442, 7}, {2447, 8}, {2452, 9},
1691 {2457, 10}, {2462, 11}, {2467, 12},
1692 {2472, 13}, {2484, 14}},
1693 },
1694};
1695
1696static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
1697{
1698 unsigned long flags;
1699 int err = 0;
1700 u32 lock;
1701 u32 ord_len = sizeof(lock);
1702
1703 /* Age scan list entries found before suspend */
1704 if (priv->suspend_time) {
1705 libipw_networks_age(priv->ieee, priv->suspend_time);
1706 priv->suspend_time = 0;
1707 }
1708
1709 /* Quiet if manually disabled. */
1710 if (priv->status & STATUS_RF_KILL_SW) {
1711 IPW_DEBUG_INFO("%s: Radio is disabled by Manual Disable "
1712 "switch\n", priv->net_dev->name);
1713 return 0;
1714 }
1715
1716 /* the ipw2100 hardware really doesn't want power management delays
1717 * longer than 175usec
1718 */
1719 cpu_latency_qos_update_request(&ipw2100_pm_qos_req, 175);
1720
1721 /* If the interrupt is enabled, turn it off... */
1722 spin_lock_irqsave(&priv->low_lock, flags);
1723 ipw2100_disable_interrupts(priv);
1724
1725 /* Reset any fatal_error conditions */
1726 ipw2100_reset_fatalerror(priv);
1727 spin_unlock_irqrestore(&priv->low_lock, flags);
1728
1729 if (priv->status & STATUS_POWERED ||
1730 (priv->status & STATUS_RESET_PENDING)) {
1731 /* Power cycle the card ... */
1732 err = ipw2100_power_cycle_adapter(priv);
1733 if (err) {
1734 printk(KERN_WARNING DRV_NAME
1735 ": %s: Could not cycle adapter.\n",
1736 priv->net_dev->name);
1737 goto exit;
1738 }
1739 } else
1740 priv->status |= STATUS_POWERED;
1741
1742 /* Load the firmware, start the clocks, etc. */
1743 err = ipw2100_start_adapter(priv);
1744 if (err) {
1745 printk(KERN_ERR DRV_NAME
1746 ": %s: Failed to start the firmware.\n",
1747 priv->net_dev->name);
1748 goto exit;
1749 }
1750
1751 ipw2100_initialize_ordinals(priv);
1752
1753 /* Determine capabilities of this particular HW configuration */
1754 err = ipw2100_get_hw_features(priv);
1755 if (err) {
1756 printk(KERN_ERR DRV_NAME
1757 ": %s: Failed to determine HW features.\n",
1758 priv->net_dev->name);
1759 goto exit;
1760 }
1761
1762 /* Initialize the geo */
1763 libipw_set_geo(priv->ieee, &ipw_geos[0]);
1764 priv->ieee->freq_band = LIBIPW_24GHZ_BAND;
1765
1766 lock = LOCK_NONE;
1767 err = ipw2100_set_ordinal(priv, IPW_ORD_PERS_DB_LOCK, &lock, &ord_len);
1768 if (err) {
1769 printk(KERN_ERR DRV_NAME
1770 ": %s: Failed to clear ordinal lock.\n",
1771 priv->net_dev->name);
1772 goto exit;
1773 }
1774
1775 priv->status &= ~STATUS_SCANNING;
1776
1777 if (rf_kill_active(priv)) {
1778 printk(KERN_INFO "%s: Radio is disabled by RF switch.\n",
1779 priv->net_dev->name);
1780
1781 if (priv->stop_rf_kill) {
1782 priv->stop_rf_kill = 0;
1783 schedule_delayed_work(&priv->rf_kill,
1784 round_jiffies_relative(HZ));
1785 }
1786
1787 deferred = 1;
1788 }
1789
1790 /* Turn on the interrupt so that commands can be processed */
1791 ipw2100_enable_interrupts(priv);
1792
1793 /* Send all of the commands that must be sent prior to
1794 * HOST_COMPLETE */
1795 err = ipw2100_adapter_setup(priv);
1796 if (err) {
1797 printk(KERN_ERR DRV_NAME ": %s: Failed to start the card.\n",
1798 priv->net_dev->name);
1799 goto exit;
1800 }
1801
1802 if (!deferred) {
1803 /* Enable the adapter - sends HOST_COMPLETE */
1804 err = ipw2100_enable_adapter(priv);
1805 if (err) {
1806 printk(KERN_ERR DRV_NAME ": "
1807 "%s: failed in call to enable adapter.\n",
1808 priv->net_dev->name);
1809 ipw2100_hw_stop_adapter(priv);
1810 goto exit;
1811 }
1812
1813 /* Start a scan . . . */
1814 ipw2100_set_scan_options(priv);
1815 ipw2100_start_scan(priv);
1816 }
1817
1818 exit:
1819 return err;
1820}
1821
1822static void ipw2100_down(struct ipw2100_priv *priv)
1823{
1824 unsigned long flags;
1825 union iwreq_data wrqu = {
1826 .ap_addr = {
1827 .sa_family = ARPHRD_ETHER}
1828 };
1829 int associated = priv->status & STATUS_ASSOCIATED;
1830
1831 /* Kill the RF switch timer */
1832 if (!priv->stop_rf_kill) {
1833 priv->stop_rf_kill = 1;
1834 cancel_delayed_work(&priv->rf_kill);
1835 }
1836
1837 /* Kill the firmware hang check timer */
1838 if (!priv->stop_hang_check) {
1839 priv->stop_hang_check = 1;
1840 cancel_delayed_work(&priv->hang_check);
1841 }
1842
1843 /* Kill any pending resets */
1844 if (priv->status & STATUS_RESET_PENDING)
1845 cancel_delayed_work(&priv->reset_work);
1846
1847 /* Make sure the interrupt is on so that FW commands will be
1848 * processed correctly */
1849 spin_lock_irqsave(&priv->low_lock, flags);
1850 ipw2100_enable_interrupts(priv);
1851 spin_unlock_irqrestore(&priv->low_lock, flags);
1852
1853 if (ipw2100_hw_stop_adapter(priv))
1854 printk(KERN_ERR DRV_NAME ": %s: Error stopping adapter.\n",
1855 priv->net_dev->name);
1856
1857 /* Do not disable the interrupt until _after_ we disable
1858 * the adaptor. Otherwise the CARD_DISABLE command will never
1859 * be ack'd by the firmware */
1860 spin_lock_irqsave(&priv->low_lock, flags);
1861 ipw2100_disable_interrupts(priv);
1862 spin_unlock_irqrestore(&priv->low_lock, flags);
1863
1864 cpu_latency_qos_update_request(&ipw2100_pm_qos_req,
1865 PM_QOS_DEFAULT_VALUE);
1866
1867 /* We have to signal any supplicant if we are disassociating */
1868 if (associated)
1869 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1870
1871 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1872 netif_carrier_off(priv->net_dev);
1873 netif_stop_queue(priv->net_dev);
1874}
1875
1876static int ipw2100_wdev_init(struct net_device *dev)
1877{
1878 struct ipw2100_priv *priv = libipw_priv(dev);
1879 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
1880 struct wireless_dev *wdev = &priv->ieee->wdev;
1881 int i;
1882
1883 memcpy(wdev->wiphy->perm_addr, priv->mac_addr, ETH_ALEN);
1884
1885 /* fill-out priv->ieee->bg_band */
1886 if (geo->bg_channels) {
1887 struct ieee80211_supported_band *bg_band = &priv->ieee->bg_band;
1888
1889 bg_band->band = NL80211_BAND_2GHZ;
1890 bg_band->n_channels = geo->bg_channels;
1891 bg_band->channels = kcalloc(geo->bg_channels,
1892 sizeof(struct ieee80211_channel),
1893 GFP_KERNEL);
1894 if (!bg_band->channels) {
1895 ipw2100_down(priv);
1896 return -ENOMEM;
1897 }
1898 /* translate geo->bg to bg_band.channels */
1899 for (i = 0; i < geo->bg_channels; i++) {
1900 bg_band->channels[i].band = NL80211_BAND_2GHZ;
1901 bg_band->channels[i].center_freq = geo->bg[i].freq;
1902 bg_band->channels[i].hw_value = geo->bg[i].channel;
1903 bg_band->channels[i].max_power = geo->bg[i].max_power;
1904 if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY)
1905 bg_band->channels[i].flags |=
1906 IEEE80211_CHAN_NO_IR;
1907 if (geo->bg[i].flags & LIBIPW_CH_NO_IBSS)
1908 bg_band->channels[i].flags |=
1909 IEEE80211_CHAN_NO_IR;
1910 if (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT)
1911 bg_band->channels[i].flags |=
1912 IEEE80211_CHAN_RADAR;
1913 /* No equivalent for LIBIPW_CH_80211H_RULES,
1914 LIBIPW_CH_UNIFORM_SPREADING, or
1915 LIBIPW_CH_B_ONLY... */
1916 }
1917 /* point at bitrate info */
1918 bg_band->bitrates = ipw2100_bg_rates;
1919 bg_band->n_bitrates = RATE_COUNT;
1920
1921 wdev->wiphy->bands[NL80211_BAND_2GHZ] = bg_band;
1922 }
1923
1924 wdev->wiphy->cipher_suites = ipw_cipher_suites;
1925 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(ipw_cipher_suites);
1926
1927 set_wiphy_dev(wdev->wiphy, &priv->pci_dev->dev);
1928 if (wiphy_register(wdev->wiphy))
1929 return -EIO;
1930 return 0;
1931}
1932
1933static void ipw2100_reset_adapter(struct work_struct *work)
1934{
1935 struct ipw2100_priv *priv =
1936 container_of(work, struct ipw2100_priv, reset_work.work);
1937 unsigned long flags;
1938 union iwreq_data wrqu = {
1939 .ap_addr = {
1940 .sa_family = ARPHRD_ETHER}
1941 };
1942 int associated = priv->status & STATUS_ASSOCIATED;
1943
1944 spin_lock_irqsave(&priv->low_lock, flags);
1945 IPW_DEBUG_INFO(": %s: Restarting adapter.\n", priv->net_dev->name);
1946 priv->resets++;
1947 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1948 priv->status |= STATUS_SECURITY_UPDATED;
1949
1950 /* Force a power cycle even if interface hasn't been opened
1951 * yet */
1952 cancel_delayed_work(&priv->reset_work);
1953 priv->status |= STATUS_RESET_PENDING;
1954 spin_unlock_irqrestore(&priv->low_lock, flags);
1955
1956 mutex_lock(&priv->action_mutex);
1957 /* stop timed checks so that they don't interfere with reset */
1958 priv->stop_hang_check = 1;
1959 cancel_delayed_work(&priv->hang_check);
1960
1961 /* We have to signal any supplicant if we are disassociating */
1962 if (associated)
1963 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1964
1965 ipw2100_up(priv, 0);
1966 mutex_unlock(&priv->action_mutex);
1967
1968}
1969
1970static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status)
1971{
1972
1973#define MAC_ASSOCIATION_READ_DELAY (HZ)
1974 int ret;
1975 unsigned int len, essid_len;
1976 char essid[IW_ESSID_MAX_SIZE];
1977 u32 txrate;
1978 u32 chan;
1979 char *txratename;
1980 u8 bssid[ETH_ALEN];
1981
1982 /*
1983 * TBD: BSSID is usually 00:00:00:00:00:00 here and not
1984 * an actual MAC of the AP. Seems like FW sets this
1985 * address too late. Read it later and expose through
1986 * /proc or schedule a later task to query and update
1987 */
1988
1989 essid_len = IW_ESSID_MAX_SIZE;
1990 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID,
1991 essid, &essid_len);
1992 if (ret) {
1993 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1994 __LINE__);
1995 return;
1996 }
1997
1998 len = sizeof(u32);
1999 ret = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &txrate, &len);
2000 if (ret) {
2001 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2002 __LINE__);
2003 return;
2004 }
2005
2006 len = sizeof(u32);
2007 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &len);
2008 if (ret) {
2009 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2010 __LINE__);
2011 return;
2012 }
2013 len = ETH_ALEN;
2014 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, bssid,
2015 &len);
2016 if (ret) {
2017 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2018 __LINE__);
2019 return;
2020 }
2021 memcpy(priv->ieee->bssid, bssid, ETH_ALEN);
2022
2023 switch (txrate) {
2024 case TX_RATE_1_MBIT:
2025 txratename = "1Mbps";
2026 break;
2027 case TX_RATE_2_MBIT:
2028 txratename = "2Mbsp";
2029 break;
2030 case TX_RATE_5_5_MBIT:
2031 txratename = "5.5Mbps";
2032 break;
2033 case TX_RATE_11_MBIT:
2034 txratename = "11Mbps";
2035 break;
2036 default:
2037 IPW_DEBUG_INFO("Unknown rate: %d\n", txrate);
2038 txratename = "unknown rate";
2039 break;
2040 }
2041
2042 IPW_DEBUG_INFO("%s: Associated with '%*pE' at %s, channel %d (BSSID=%pM)\n",
2043 priv->net_dev->name, essid_len, essid,
2044 txratename, chan, bssid);
2045
2046 /* now we copy read ssid into dev */
2047 if (!(priv->config & CFG_STATIC_ESSID)) {
2048 priv->essid_len = min((u8) essid_len, (u8) IW_ESSID_MAX_SIZE);
2049 memcpy(priv->essid, essid, priv->essid_len);
2050 }
2051 priv->channel = chan;
2052 memcpy(priv->bssid, bssid, ETH_ALEN);
2053
2054 priv->status |= STATUS_ASSOCIATING;
2055 priv->connect_start = ktime_get_boottime_seconds();
2056
2057 schedule_delayed_work(&priv->wx_event_work, HZ / 10);
2058}
2059
2060static int ipw2100_set_essid(struct ipw2100_priv *priv, char *essid,
2061 int length, int batch_mode)
2062{
2063 int ssid_len = min(length, IW_ESSID_MAX_SIZE);
2064 struct host_command cmd = {
2065 .host_command = SSID,
2066 .host_command_sequence = 0,
2067 .host_command_length = ssid_len
2068 };
2069 int err;
2070
2071 IPW_DEBUG_HC("SSID: '%*pE'\n", ssid_len, essid);
2072
2073 if (ssid_len)
2074 memcpy(cmd.host_command_parameters, essid, ssid_len);
2075
2076 if (!batch_mode) {
2077 err = ipw2100_disable_adapter(priv);
2078 if (err)
2079 return err;
2080 }
2081
2082 /* Bug in FW currently doesn't honor bit 0 in SET_SCAN_OPTIONS to
2083 * disable auto association -- so we cheat by setting a bogus SSID */
2084 if (!ssid_len && !(priv->config & CFG_ASSOCIATE)) {
2085 int i;
2086 u8 *bogus = (u8 *) cmd.host_command_parameters;
2087 for (i = 0; i < IW_ESSID_MAX_SIZE; i++)
2088 bogus[i] = 0x18 + i;
2089 cmd.host_command_length = IW_ESSID_MAX_SIZE;
2090 }
2091
2092 /* NOTE: We always send the SSID command even if the provided ESSID is
2093 * the same as what we currently think is set. */
2094
2095 err = ipw2100_hw_send_command(priv, &cmd);
2096 if (!err) {
2097 memset(priv->essid + ssid_len, 0, IW_ESSID_MAX_SIZE - ssid_len);
2098 memcpy(priv->essid, essid, ssid_len);
2099 priv->essid_len = ssid_len;
2100 }
2101
2102 if (!batch_mode) {
2103 if (ipw2100_enable_adapter(priv))
2104 err = -EIO;
2105 }
2106
2107 return err;
2108}
2109
2110static void isr_indicate_association_lost(struct ipw2100_priv *priv, u32 status)
2111{
2112 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
2113 "disassociated: '%*pE' %pM\n", priv->essid_len, priv->essid,
2114 priv->bssid);
2115
2116 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
2117
2118 if (priv->status & STATUS_STOPPING) {
2119 IPW_DEBUG_INFO("Card is stopping itself, discard ASSN_LOST.\n");
2120 return;
2121 }
2122
2123 eth_zero_addr(priv->bssid);
2124 eth_zero_addr(priv->ieee->bssid);
2125
2126 netif_carrier_off(priv->net_dev);
2127 netif_stop_queue(priv->net_dev);
2128
2129 if (!(priv->status & STATUS_RUNNING))
2130 return;
2131
2132 if (priv->status & STATUS_SECURITY_UPDATED)
2133 schedule_delayed_work(&priv->security_work, 0);
2134
2135 schedule_delayed_work(&priv->wx_event_work, 0);
2136}
2137
2138static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status)
2139{
2140 IPW_DEBUG_INFO("%s: RF Kill state changed to radio OFF.\n",
2141 priv->net_dev->name);
2142
2143 /* RF_KILL is now enabled (else we wouldn't be here) */
2144 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
2145 priv->status |= STATUS_RF_KILL_HW;
2146
2147 /* Make sure the RF Kill check timer is running */
2148 priv->stop_rf_kill = 0;
2149 mod_delayed_work(system_wq, &priv->rf_kill, round_jiffies_relative(HZ));
2150}
2151
2152static void ipw2100_scan_event(struct work_struct *work)
2153{
2154 struct ipw2100_priv *priv = container_of(work, struct ipw2100_priv,
2155 scan_event.work);
2156 union iwreq_data wrqu;
2157
2158 wrqu.data.length = 0;
2159 wrqu.data.flags = 0;
2160 wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL);
2161}
2162
2163static void isr_scan_complete(struct ipw2100_priv *priv, u32 status)
2164{
2165 IPW_DEBUG_SCAN("scan complete\n");
2166 /* Age the scan results... */
2167 priv->ieee->scans++;
2168 priv->status &= ~STATUS_SCANNING;
2169
2170 /* Only userspace-requested scan completion events go out immediately */
2171 if (!priv->user_requested_scan) {
2172 schedule_delayed_work(&priv->scan_event,
2173 round_jiffies_relative(msecs_to_jiffies(4000)));
2174 } else {
2175 priv->user_requested_scan = 0;
2176 mod_delayed_work(system_wq, &priv->scan_event, 0);
2177 }
2178}
2179
2180#ifdef CONFIG_IPW2100_DEBUG
2181#define IPW2100_HANDLER(v, f) { v, f, # v }
2182struct ipw2100_status_indicator {
2183 int status;
2184 void (*cb) (struct ipw2100_priv * priv, u32 status);
2185 char *name;
2186};
2187#else
2188#define IPW2100_HANDLER(v, f) { v, f }
2189struct ipw2100_status_indicator {
2190 int status;
2191 void (*cb) (struct ipw2100_priv * priv, u32 status);
2192};
2193#endif /* CONFIG_IPW2100_DEBUG */
2194
2195static void isr_indicate_scanning(struct ipw2100_priv *priv, u32 status)
2196{
2197 IPW_DEBUG_SCAN("Scanning...\n");
2198 priv->status |= STATUS_SCANNING;
2199}
2200
2201static const struct ipw2100_status_indicator status_handlers[] = {
2202 IPW2100_HANDLER(IPW_STATE_INITIALIZED, NULL),
2203 IPW2100_HANDLER(IPW_STATE_COUNTRY_FOUND, NULL),
2204 IPW2100_HANDLER(IPW_STATE_ASSOCIATED, isr_indicate_associated),
2205 IPW2100_HANDLER(IPW_STATE_ASSN_LOST, isr_indicate_association_lost),
2206 IPW2100_HANDLER(IPW_STATE_ASSN_CHANGED, NULL),
2207 IPW2100_HANDLER(IPW_STATE_SCAN_COMPLETE, isr_scan_complete),
2208 IPW2100_HANDLER(IPW_STATE_ENTERED_PSP, NULL),
2209 IPW2100_HANDLER(IPW_STATE_LEFT_PSP, NULL),
2210 IPW2100_HANDLER(IPW_STATE_RF_KILL, isr_indicate_rf_kill),
2211 IPW2100_HANDLER(IPW_STATE_DISABLED, NULL),
2212 IPW2100_HANDLER(IPW_STATE_POWER_DOWN, NULL),
2213 IPW2100_HANDLER(IPW_STATE_SCANNING, isr_indicate_scanning),
2214 IPW2100_HANDLER(-1, NULL)
2215};
2216
2217static void isr_status_change(struct ipw2100_priv *priv, int status)
2218{
2219 int i;
2220
2221 if (status == IPW_STATE_SCANNING &&
2222 priv->status & STATUS_ASSOCIATED &&
2223 !(priv->status & STATUS_SCANNING)) {
2224 IPW_DEBUG_INFO("Scan detected while associated, with "
2225 "no scan request. Restarting firmware.\n");
2226
2227 /* Wake up any sleeping jobs */
2228 schedule_reset(priv);
2229 }
2230
2231 for (i = 0; status_handlers[i].status != -1; i++) {
2232 if (status == status_handlers[i].status) {
2233 IPW_DEBUG_NOTIF("Status change: %s\n",
2234 status_handlers[i].name);
2235 if (status_handlers[i].cb)
2236 status_handlers[i].cb(priv, status);
2237 priv->wstats.status = status;
2238 return;
2239 }
2240 }
2241
2242 IPW_DEBUG_NOTIF("unknown status received: %04x\n", status);
2243}
2244
2245static void isr_rx_complete_command(struct ipw2100_priv *priv,
2246 struct ipw2100_cmd_header *cmd)
2247{
2248#ifdef CONFIG_IPW2100_DEBUG
2249 if (cmd->host_command_reg < ARRAY_SIZE(command_types)) {
2250 IPW_DEBUG_HC("Command completed '%s (%d)'\n",
2251 command_types[cmd->host_command_reg],
2252 cmd->host_command_reg);
2253 }
2254#endif
2255 if (cmd->host_command_reg == HOST_COMPLETE)
2256 priv->status |= STATUS_ENABLED;
2257
2258 if (cmd->host_command_reg == CARD_DISABLE)
2259 priv->status &= ~STATUS_ENABLED;
2260
2261 priv->status &= ~STATUS_CMD_ACTIVE;
2262
2263 wake_up_interruptible(&priv->wait_command_queue);
2264}
2265
2266#ifdef CONFIG_IPW2100_DEBUG
2267static const char *frame_types[] = {
2268 "COMMAND_STATUS_VAL",
2269 "STATUS_CHANGE_VAL",
2270 "P80211_DATA_VAL",
2271 "P8023_DATA_VAL",
2272 "HOST_NOTIFICATION_VAL"
2273};
2274#endif
2275
2276static int ipw2100_alloc_skb(struct ipw2100_priv *priv,
2277 struct ipw2100_rx_packet *packet)
2278{
2279 packet->skb = dev_alloc_skb(sizeof(struct ipw2100_rx));
2280 if (!packet->skb)
2281 return -ENOMEM;
2282
2283 packet->rxp = (struct ipw2100_rx *)packet->skb->data;
2284 packet->dma_addr = dma_map_single(&priv->pci_dev->dev,
2285 packet->skb->data,
2286 sizeof(struct ipw2100_rx),
2287 DMA_FROM_DEVICE);
2288 if (dma_mapping_error(&priv->pci_dev->dev, packet->dma_addr)) {
2289 dev_kfree_skb(packet->skb);
2290 return -ENOMEM;
2291 }
2292
2293 return 0;
2294}
2295
2296#define SEARCH_ERROR 0xffffffff
2297#define SEARCH_FAIL 0xfffffffe
2298#define SEARCH_SUCCESS 0xfffffff0
2299#define SEARCH_DISCARD 0
2300#define SEARCH_SNAPSHOT 1
2301
2302#define SNAPSHOT_ADDR(ofs) (priv->snapshot[((ofs) >> 12) & 0xff] + ((ofs) & 0xfff))
2303static void ipw2100_snapshot_free(struct ipw2100_priv *priv)
2304{
2305 int i;
2306 if (!priv->snapshot[0])
2307 return;
2308 for (i = 0; i < 0x30; i++)
2309 kfree(priv->snapshot[i]);
2310 priv->snapshot[0] = NULL;
2311}
2312
2313#ifdef IPW2100_DEBUG_C3
2314static int ipw2100_snapshot_alloc(struct ipw2100_priv *priv)
2315{
2316 int i;
2317 if (priv->snapshot[0])
2318 return 1;
2319 for (i = 0; i < 0x30; i++) {
2320 priv->snapshot[i] = kmalloc(0x1000, GFP_ATOMIC);
2321 if (!priv->snapshot[i]) {
2322 IPW_DEBUG_INFO("%s: Error allocating snapshot "
2323 "buffer %d\n", priv->net_dev->name, i);
2324 while (i > 0)
2325 kfree(priv->snapshot[--i]);
2326 priv->snapshot[0] = NULL;
2327 return 0;
2328 }
2329 }
2330
2331 return 1;
2332}
2333
2334static u32 ipw2100_match_buf(struct ipw2100_priv *priv, u8 * in_buf,
2335 size_t len, int mode)
2336{
2337 u32 i, j;
2338 u32 tmp;
2339 u8 *s, *d;
2340 u32 ret;
2341
2342 s = in_buf;
2343 if (mode == SEARCH_SNAPSHOT) {
2344 if (!ipw2100_snapshot_alloc(priv))
2345 mode = SEARCH_DISCARD;
2346 }
2347
2348 for (ret = SEARCH_FAIL, i = 0; i < 0x30000; i += 4) {
2349 read_nic_dword(priv->net_dev, i, &tmp);
2350 if (mode == SEARCH_SNAPSHOT)
2351 *(u32 *) SNAPSHOT_ADDR(i) = tmp;
2352 if (ret == SEARCH_FAIL) {
2353 d = (u8 *) & tmp;
2354 for (j = 0; j < 4; j++) {
2355 if (*s != *d) {
2356 s = in_buf;
2357 continue;
2358 }
2359
2360 s++;
2361 d++;
2362
2363 if ((s - in_buf) == len)
2364 ret = (i + j) - len + 1;
2365 }
2366 } else if (mode == SEARCH_DISCARD)
2367 return ret;
2368 }
2369
2370 return ret;
2371}
2372#endif
2373
2374/*
2375 *
2376 * 0) Disconnect the SKB from the firmware (just unmap)
2377 * 1) Pack the ETH header into the SKB
2378 * 2) Pass the SKB to the network stack
2379 *
2380 * When packet is provided by the firmware, it contains the following:
2381 *
2382 * . libipw_hdr
2383 * . libipw_snap_hdr
2384 *
2385 * The size of the constructed ethernet
2386 *
2387 */
2388#ifdef IPW2100_RX_DEBUG
2389static u8 packet_data[IPW_RX_NIC_BUFFER_LENGTH];
2390#endif
2391
2392static void ipw2100_corruption_detected(struct ipw2100_priv *priv, int i)
2393{
2394#ifdef IPW2100_DEBUG_C3
2395 struct ipw2100_status *status = &priv->status_queue.drv[i];
2396 u32 match, reg;
2397 int j;
2398#endif
2399
2400 IPW_DEBUG_INFO(": PCI latency error detected at 0x%04zX.\n",
2401 i * sizeof(struct ipw2100_status));
2402
2403#ifdef IPW2100_DEBUG_C3
2404 /* Halt the firmware so we can get a good image */
2405 write_register(priv->net_dev, IPW_REG_RESET_REG,
2406 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
2407 j = 5;
2408 do {
2409 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
2410 read_register(priv->net_dev, IPW_REG_RESET_REG, ®);
2411
2412 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
2413 break;
2414 } while (j--);
2415
2416 match = ipw2100_match_buf(priv, (u8 *) status,
2417 sizeof(struct ipw2100_status),
2418 SEARCH_SNAPSHOT);
2419 if (match < SEARCH_SUCCESS)
2420 IPW_DEBUG_INFO("%s: DMA status match in Firmware at "
2421 "offset 0x%06X, length %d:\n",
2422 priv->net_dev->name, match,
2423 sizeof(struct ipw2100_status));
2424 else
2425 IPW_DEBUG_INFO("%s: No DMA status match in "
2426 "Firmware.\n", priv->net_dev->name);
2427
2428 printk_buf((u8 *) priv->status_queue.drv,
2429 sizeof(struct ipw2100_status) * RX_QUEUE_LENGTH);
2430#endif
2431
2432 priv->fatal_error = IPW2100_ERR_C3_CORRUPTION;
2433 priv->net_dev->stats.rx_errors++;
2434 schedule_reset(priv);
2435}
2436
2437static void isr_rx(struct ipw2100_priv *priv, int i,
2438 struct libipw_rx_stats *stats)
2439{
2440 struct net_device *dev = priv->net_dev;
2441 struct ipw2100_status *status = &priv->status_queue.drv[i];
2442 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2443
2444 IPW_DEBUG_RX("Handler...\n");
2445
2446 if (unlikely(status->frame_size > skb_tailroom(packet->skb))) {
2447 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2448 " Dropping.\n",
2449 dev->name,
2450 status->frame_size, skb_tailroom(packet->skb));
2451 dev->stats.rx_errors++;
2452 return;
2453 }
2454
2455 if (unlikely(!netif_running(dev))) {
2456 dev->stats.rx_errors++;
2457 priv->wstats.discard.misc++;
2458 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2459 return;
2460 }
2461
2462 if (unlikely(priv->ieee->iw_mode != IW_MODE_MONITOR &&
2463 !(priv->status & STATUS_ASSOCIATED))) {
2464 IPW_DEBUG_DROP("Dropping packet while not associated.\n");
2465 priv->wstats.discard.misc++;
2466 return;
2467 }
2468
2469 dma_unmap_single(&priv->pci_dev->dev, packet->dma_addr,
2470 sizeof(struct ipw2100_rx), DMA_FROM_DEVICE);
2471
2472 skb_put(packet->skb, status->frame_size);
2473
2474#ifdef IPW2100_RX_DEBUG
2475 /* Make a copy of the frame so we can dump it to the logs if
2476 * libipw_rx fails */
2477 skb_copy_from_linear_data(packet->skb, packet_data,
2478 min_t(u32, status->frame_size,
2479 IPW_RX_NIC_BUFFER_LENGTH));
2480#endif
2481
2482 if (!libipw_rx(priv->ieee, packet->skb, stats)) {
2483#ifdef IPW2100_RX_DEBUG
2484 IPW_DEBUG_DROP("%s: Non consumed packet:\n",
2485 dev->name);
2486 printk_buf(IPW_DL_DROP, packet_data, status->frame_size);
2487#endif
2488 dev->stats.rx_errors++;
2489
2490 /* libipw_rx failed, so it didn't free the SKB */
2491 dev_kfree_skb_any(packet->skb);
2492 packet->skb = NULL;
2493 }
2494
2495 /* We need to allocate a new SKB and attach it to the RDB. */
2496 if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2497 printk(KERN_WARNING DRV_NAME ": "
2498 "%s: Unable to allocate SKB onto RBD ring - disabling "
2499 "adapter.\n", dev->name);
2500 /* TODO: schedule adapter shutdown */
2501 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2502 }
2503
2504 /* Update the RDB entry */
2505 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2506}
2507
2508#ifdef CONFIG_IPW2100_MONITOR
2509
2510static void isr_rx_monitor(struct ipw2100_priv *priv, int i,
2511 struct libipw_rx_stats *stats)
2512{
2513 struct net_device *dev = priv->net_dev;
2514 struct ipw2100_status *status = &priv->status_queue.drv[i];
2515 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2516
2517 /* Magic struct that slots into the radiotap header -- no reason
2518 * to build this manually element by element, we can write it much
2519 * more efficiently than we can parse it. ORDER MATTERS HERE */
2520 struct ipw_rt_hdr {
2521 struct ieee80211_radiotap_header rt_hdr;
2522 s8 rt_dbmsignal; /* signal in dbM, kluged to signed */
2523 } *ipw_rt;
2524
2525 IPW_DEBUG_RX("Handler...\n");
2526
2527 if (unlikely(status->frame_size > skb_tailroom(packet->skb) -
2528 sizeof(struct ipw_rt_hdr))) {
2529 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2530 " Dropping.\n",
2531 dev->name,
2532 status->frame_size,
2533 skb_tailroom(packet->skb));
2534 dev->stats.rx_errors++;
2535 return;
2536 }
2537
2538 if (unlikely(!netif_running(dev))) {
2539 dev->stats.rx_errors++;
2540 priv->wstats.discard.misc++;
2541 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2542 return;
2543 }
2544
2545 if (unlikely(priv->config & CFG_CRC_CHECK &&
2546 status->flags & IPW_STATUS_FLAG_CRC_ERROR)) {
2547 IPW_DEBUG_RX("CRC error in packet. Dropping.\n");
2548 dev->stats.rx_errors++;
2549 return;
2550 }
2551
2552 dma_unmap_single(&priv->pci_dev->dev, packet->dma_addr,
2553 sizeof(struct ipw2100_rx), DMA_FROM_DEVICE);
2554 memmove(packet->skb->data + sizeof(struct ipw_rt_hdr),
2555 packet->skb->data, status->frame_size);
2556
2557 ipw_rt = (struct ipw_rt_hdr *) packet->skb->data;
2558
2559 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
2560 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */
2561 ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct ipw_rt_hdr)); /* total hdr+data */
2562
2563 ipw_rt->rt_hdr.it_present = cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
2564
2565 ipw_rt->rt_dbmsignal = status->rssi + IPW2100_RSSI_TO_DBM;
2566
2567 skb_put(packet->skb, status->frame_size + sizeof(struct ipw_rt_hdr));
2568
2569 if (!libipw_rx(priv->ieee, packet->skb, stats)) {
2570 dev->stats.rx_errors++;
2571
2572 /* libipw_rx failed, so it didn't free the SKB */
2573 dev_kfree_skb_any(packet->skb);
2574 packet->skb = NULL;
2575 }
2576
2577 /* We need to allocate a new SKB and attach it to the RDB. */
2578 if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2579 IPW_DEBUG_WARNING(
2580 "%s: Unable to allocate SKB onto RBD ring - disabling "
2581 "adapter.\n", dev->name);
2582 /* TODO: schedule adapter shutdown */
2583 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2584 }
2585
2586 /* Update the RDB entry */
2587 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2588}
2589
2590#endif
2591
2592static int ipw2100_corruption_check(struct ipw2100_priv *priv, int i)
2593{
2594 struct ipw2100_status *status = &priv->status_queue.drv[i];
2595 struct ipw2100_rx *u = priv->rx_buffers[i].rxp;
2596 u16 frame_type = status->status_fields & STATUS_TYPE_MASK;
2597
2598 switch (frame_type) {
2599 case COMMAND_STATUS_VAL:
2600 return (status->frame_size != sizeof(u->rx_data.command));
2601 case STATUS_CHANGE_VAL:
2602 return (status->frame_size != sizeof(u->rx_data.status));
2603 case HOST_NOTIFICATION_VAL:
2604 return (status->frame_size < sizeof(u->rx_data.notification));
2605 case P80211_DATA_VAL:
2606 case P8023_DATA_VAL:
2607#ifdef CONFIG_IPW2100_MONITOR
2608 return 0;
2609#else
2610 switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) {
2611 case IEEE80211_FTYPE_MGMT:
2612 case IEEE80211_FTYPE_CTL:
2613 return 0;
2614 case IEEE80211_FTYPE_DATA:
2615 return (status->frame_size >
2616 IPW_MAX_802_11_PAYLOAD_LENGTH);
2617 }
2618#endif
2619 }
2620
2621 return 1;
2622}
2623
2624/*
2625 * ipw2100 interrupts are disabled at this point, and the ISR
2626 * is the only code that calls this method. So, we do not need
2627 * to play with any locks.
2628 *
2629 * RX Queue works as follows:
2630 *
2631 * Read index - firmware places packet in entry identified by the
2632 * Read index and advances Read index. In this manner,
2633 * Read index will always point to the next packet to
2634 * be filled--but not yet valid.
2635 *
2636 * Write index - driver fills this entry with an unused RBD entry.
2637 * This entry has not filled by the firmware yet.
2638 *
2639 * In between the W and R indexes are the RBDs that have been received
2640 * but not yet processed.
2641 *
2642 * The process of handling packets will start at WRITE + 1 and advance
2643 * until it reaches the READ index.
2644 *
2645 * The WRITE index is cached in the variable 'priv->rx_queue.next'.
2646 *
2647 */
2648static void __ipw2100_rx_process(struct ipw2100_priv *priv)
2649{
2650 struct ipw2100_bd_queue *rxq = &priv->rx_queue;
2651 struct ipw2100_status_queue *sq = &priv->status_queue;
2652 struct ipw2100_rx_packet *packet;
2653 u16 frame_type;
2654 u32 r, w, i, s;
2655 struct ipw2100_rx *u;
2656 struct libipw_rx_stats stats = {
2657 .mac_time = jiffies,
2658 };
2659
2660 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_READ_INDEX, &r);
2661 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, &w);
2662
2663 if (r >= rxq->entries) {
2664 IPW_DEBUG_RX("exit - bad read index\n");
2665 return;
2666 }
2667
2668 i = (rxq->next + 1) % rxq->entries;
2669 s = i;
2670 while (i != r) {
2671 /* IPW_DEBUG_RX("r = %d : w = %d : processing = %d\n",
2672 r, rxq->next, i); */
2673
2674 packet = &priv->rx_buffers[i];
2675
2676 /* Sync the DMA for the RX buffer so CPU is sure to get
2677 * the correct values */
2678 dma_sync_single_for_cpu(&priv->pci_dev->dev, packet->dma_addr,
2679 sizeof(struct ipw2100_rx),
2680 DMA_FROM_DEVICE);
2681
2682 if (unlikely(ipw2100_corruption_check(priv, i))) {
2683 ipw2100_corruption_detected(priv, i);
2684 goto increment;
2685 }
2686
2687 u = packet->rxp;
2688 frame_type = sq->drv[i].status_fields & STATUS_TYPE_MASK;
2689 stats.rssi = sq->drv[i].rssi + IPW2100_RSSI_TO_DBM;
2690 stats.len = sq->drv[i].frame_size;
2691
2692 stats.mask = 0;
2693 if (stats.rssi != 0)
2694 stats.mask |= LIBIPW_STATMASK_RSSI;
2695 stats.freq = LIBIPW_24GHZ_BAND;
2696
2697 IPW_DEBUG_RX("%s: '%s' frame type received (%d).\n",
2698 priv->net_dev->name, frame_types[frame_type],
2699 stats.len);
2700
2701 switch (frame_type) {
2702 case COMMAND_STATUS_VAL:
2703 /* Reset Rx watchdog */
2704 isr_rx_complete_command(priv, &u->rx_data.command);
2705 break;
2706
2707 case STATUS_CHANGE_VAL:
2708 isr_status_change(priv, u->rx_data.status);
2709 break;
2710
2711 case P80211_DATA_VAL:
2712 case P8023_DATA_VAL:
2713#ifdef CONFIG_IPW2100_MONITOR
2714 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
2715 isr_rx_monitor(priv, i, &stats);
2716 break;
2717 }
2718#endif
2719 if (stats.len < sizeof(struct libipw_hdr_3addr))
2720 break;
2721 switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) {
2722 case IEEE80211_FTYPE_MGMT:
2723 libipw_rx_mgt(priv->ieee,
2724 &u->rx_data.header, &stats);
2725 break;
2726
2727 case IEEE80211_FTYPE_CTL:
2728 break;
2729
2730 case IEEE80211_FTYPE_DATA:
2731 isr_rx(priv, i, &stats);
2732 break;
2733
2734 }
2735 break;
2736 }
2737
2738 increment:
2739 /* clear status field associated with this RBD */
2740 rxq->drv[i].status.info.field = 0;
2741
2742 i = (i + 1) % rxq->entries;
2743 }
2744
2745 if (i != s) {
2746 /* backtrack one entry, wrapping to end if at 0 */
2747 rxq->next = (i ? i : rxq->entries) - 1;
2748
2749 write_register(priv->net_dev,
2750 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, rxq->next);
2751 }
2752}
2753
2754/*
2755 * __ipw2100_tx_process
2756 *
2757 * This routine will determine whether the next packet on
2758 * the fw_pend_list has been processed by the firmware yet.
2759 *
2760 * If not, then it does nothing and returns.
2761 *
2762 * If so, then it removes the item from the fw_pend_list, frees
2763 * any associated storage, and places the item back on the
2764 * free list of its source (either msg_free_list or tx_free_list)
2765 *
2766 * TX Queue works as follows:
2767 *
2768 * Read index - points to the next TBD that the firmware will
2769 * process. The firmware will read the data, and once
2770 * done processing, it will advance the Read index.
2771 *
2772 * Write index - driver fills this entry with an constructed TBD
2773 * entry. The Write index is not advanced until the
2774 * packet has been configured.
2775 *
2776 * In between the W and R indexes are the TBDs that have NOT been
2777 * processed. Lagging behind the R index are packets that have
2778 * been processed but have not been freed by the driver.
2779 *
2780 * In order to free old storage, an internal index will be maintained
2781 * that points to the next packet to be freed. When all used
2782 * packets have been freed, the oldest index will be the same as the
2783 * firmware's read index.
2784 *
2785 * The OLDEST index is cached in the variable 'priv->tx_queue.oldest'
2786 *
2787 * Because the TBD structure can not contain arbitrary data, the
2788 * driver must keep an internal queue of cached allocations such that
2789 * it can put that data back into the tx_free_list and msg_free_list
2790 * for use by future command and data packets.
2791 *
2792 */
2793static int __ipw2100_tx_process(struct ipw2100_priv *priv)
2794{
2795 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2796 struct ipw2100_bd *tbd;
2797 struct list_head *element;
2798 struct ipw2100_tx_packet *packet;
2799 int descriptors_used;
2800 int e, i;
2801 u32 r, w, frag_num = 0;
2802
2803 if (list_empty(&priv->fw_pend_list))
2804 return 0;
2805
2806 element = priv->fw_pend_list.next;
2807
2808 packet = list_entry(element, struct ipw2100_tx_packet, list);
2809 tbd = &txq->drv[packet->index];
2810
2811 /* Determine how many TBD entries must be finished... */
2812 switch (packet->type) {
2813 case COMMAND:
2814 /* COMMAND uses only one slot; don't advance */
2815 descriptors_used = 1;
2816 e = txq->oldest;
2817 break;
2818
2819 case DATA:
2820 /* DATA uses two slots; advance and loop position. */
2821 descriptors_used = tbd->num_fragments;
2822 frag_num = tbd->num_fragments - 1;
2823 e = txq->oldest + frag_num;
2824 e %= txq->entries;
2825 break;
2826
2827 default:
2828 printk(KERN_WARNING DRV_NAME ": %s: Bad fw_pend_list entry!\n",
2829 priv->net_dev->name);
2830 return 0;
2831 }
2832
2833 /* if the last TBD is not done by NIC yet, then packet is
2834 * not ready to be released.
2835 *
2836 */
2837 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
2838 &r);
2839 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
2840 &w);
2841 if (w != txq->next)
2842 printk(KERN_WARNING DRV_NAME ": %s: write index mismatch\n",
2843 priv->net_dev->name);
2844
2845 /*
2846 * txq->next is the index of the last packet written txq->oldest is
2847 * the index of the r is the index of the next packet to be read by
2848 * firmware
2849 */
2850
2851 /*
2852 * Quick graphic to help you visualize the following
2853 * if / else statement
2854 *
2855 * ===>| s---->|===============
2856 * e>|
2857 * | a | b | c | d | e | f | g | h | i | j | k | l
2858 * r---->|
2859 * w
2860 *
2861 * w - updated by driver
2862 * r - updated by firmware
2863 * s - start of oldest BD entry (txq->oldest)
2864 * e - end of oldest BD entry
2865 *
2866 */
2867 if (!((r <= w && (e < r || e >= w)) || (e < r && e >= w))) {
2868 IPW_DEBUG_TX("exit - no processed packets ready to release.\n");
2869 return 0;
2870 }
2871
2872 list_del(element);
2873 DEC_STAT(&priv->fw_pend_stat);
2874
2875#ifdef CONFIG_IPW2100_DEBUG
2876 {
2877 i = txq->oldest;
2878 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2879 &txq->drv[i],
2880 (u32) (txq->nic + i * sizeof(struct ipw2100_bd)),
2881 txq->drv[i].host_addr, txq->drv[i].buf_length);
2882
2883 if (packet->type == DATA) {
2884 i = (i + 1) % txq->entries;
2885
2886 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2887 &txq->drv[i],
2888 (u32) (txq->nic + i *
2889 sizeof(struct ipw2100_bd)),
2890 (u32) txq->drv[i].host_addr,
2891 txq->drv[i].buf_length);
2892 }
2893 }
2894#endif
2895
2896 switch (packet->type) {
2897 case DATA:
2898 if (txq->drv[txq->oldest].status.info.fields.txType != 0)
2899 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2900 "Expecting DATA TBD but pulled "
2901 "something else: ids %d=%d.\n",
2902 priv->net_dev->name, txq->oldest, packet->index);
2903
2904 /* DATA packet; we have to unmap and free the SKB */
2905 for (i = 0; i < frag_num; i++) {
2906 tbd = &txq->drv[(packet->index + 1 + i) % txq->entries];
2907
2908 IPW_DEBUG_TX("TX%d P=%08x L=%d\n",
2909 (packet->index + 1 + i) % txq->entries,
2910 tbd->host_addr, tbd->buf_length);
2911
2912 dma_unmap_single(&priv->pci_dev->dev, tbd->host_addr,
2913 tbd->buf_length, DMA_TO_DEVICE);
2914 }
2915
2916 libipw_txb_free(packet->info.d_struct.txb);
2917 packet->info.d_struct.txb = NULL;
2918
2919 list_add_tail(element, &priv->tx_free_list);
2920 INC_STAT(&priv->tx_free_stat);
2921
2922 /* We have a free slot in the Tx queue, so wake up the
2923 * transmit layer if it is stopped. */
2924 if (priv->status & STATUS_ASSOCIATED)
2925 netif_wake_queue(priv->net_dev);
2926
2927 /* A packet was processed by the hardware, so update the
2928 * watchdog */
2929 netif_trans_update(priv->net_dev);
2930
2931 break;
2932
2933 case COMMAND:
2934 if (txq->drv[txq->oldest].status.info.fields.txType != 1)
2935 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2936 "Expecting COMMAND TBD but pulled "
2937 "something else: ids %d=%d.\n",
2938 priv->net_dev->name, txq->oldest, packet->index);
2939
2940#ifdef CONFIG_IPW2100_DEBUG
2941 if (packet->info.c_struct.cmd->host_command_reg <
2942 ARRAY_SIZE(command_types))
2943 IPW_DEBUG_TX("Command '%s (%d)' processed: %d.\n",
2944 command_types[packet->info.c_struct.cmd->
2945 host_command_reg],
2946 packet->info.c_struct.cmd->
2947 host_command_reg,
2948 packet->info.c_struct.cmd->cmd_status_reg);
2949#endif
2950
2951 list_add_tail(element, &priv->msg_free_list);
2952 INC_STAT(&priv->msg_free_stat);
2953 break;
2954 }
2955
2956 /* advance oldest used TBD pointer to start of next entry */
2957 txq->oldest = (e + 1) % txq->entries;
2958 /* increase available TBDs number */
2959 txq->available += descriptors_used;
2960 SET_STAT(&priv->txq_stat, txq->available);
2961
2962 IPW_DEBUG_TX("packet latency (send to process) %ld jiffies\n",
2963 jiffies - packet->jiffy_start);
2964
2965 return (!list_empty(&priv->fw_pend_list));
2966}
2967
2968static inline void __ipw2100_tx_complete(struct ipw2100_priv *priv)
2969{
2970 int i = 0;
2971
2972 while (__ipw2100_tx_process(priv) && i < 200)
2973 i++;
2974
2975 if (i == 200) {
2976 printk(KERN_WARNING DRV_NAME ": "
2977 "%s: Driver is running slow (%d iters).\n",
2978 priv->net_dev->name, i);
2979 }
2980}
2981
2982static void ipw2100_tx_send_commands(struct ipw2100_priv *priv)
2983{
2984 struct list_head *element;
2985 struct ipw2100_tx_packet *packet;
2986 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2987 struct ipw2100_bd *tbd;
2988 int next = txq->next;
2989
2990 while (!list_empty(&priv->msg_pend_list)) {
2991 /* if there isn't enough space in TBD queue, then
2992 * don't stuff a new one in.
2993 * NOTE: 3 are needed as a command will take one,
2994 * and there is a minimum of 2 that must be
2995 * maintained between the r and w indexes
2996 */
2997 if (txq->available <= 3) {
2998 IPW_DEBUG_TX("no room in tx_queue\n");
2999 break;
3000 }
3001
3002 element = priv->msg_pend_list.next;
3003 list_del(element);
3004 DEC_STAT(&priv->msg_pend_stat);
3005
3006 packet = list_entry(element, struct ipw2100_tx_packet, list);
3007
3008 IPW_DEBUG_TX("using TBD at virt=%p, phys=%04X\n",
3009 &txq->drv[txq->next],
3010 (u32) (txq->nic + txq->next *
3011 sizeof(struct ipw2100_bd)));
3012
3013 packet->index = txq->next;
3014
3015 tbd = &txq->drv[txq->next];
3016
3017 /* initialize TBD */
3018 tbd->host_addr = packet->info.c_struct.cmd_phys;
3019 tbd->buf_length = sizeof(struct ipw2100_cmd_header);
3020 /* not marking number of fragments causes problems
3021 * with f/w debug version */
3022 tbd->num_fragments = 1;
3023 tbd->status.info.field =
3024 IPW_BD_STATUS_TX_FRAME_COMMAND |
3025 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
3026
3027 /* update TBD queue counters */
3028 txq->next++;
3029 txq->next %= txq->entries;
3030 txq->available--;
3031 DEC_STAT(&priv->txq_stat);
3032
3033 list_add_tail(element, &priv->fw_pend_list);
3034 INC_STAT(&priv->fw_pend_stat);
3035 }
3036
3037 if (txq->next != next) {
3038 /* kick off the DMA by notifying firmware the
3039 * write index has moved; make sure TBD stores are sync'd */
3040 wmb();
3041 write_register(priv->net_dev,
3042 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3043 txq->next);
3044 }
3045}
3046
3047/*
3048 * ipw2100_tx_send_data
3049 *
3050 */
3051static void ipw2100_tx_send_data(struct ipw2100_priv *priv)
3052{
3053 struct list_head *element;
3054 struct ipw2100_tx_packet *packet;
3055 struct ipw2100_bd_queue *txq = &priv->tx_queue;
3056 struct ipw2100_bd *tbd;
3057 int next = txq->next;
3058 int i = 0;
3059 struct ipw2100_data_header *ipw_hdr;
3060 struct libipw_hdr_3addr *hdr;
3061
3062 while (!list_empty(&priv->tx_pend_list)) {
3063 /* if there isn't enough space in TBD queue, then
3064 * don't stuff a new one in.
3065 * NOTE: 4 are needed as a data will take two,
3066 * and there is a minimum of 2 that must be
3067 * maintained between the r and w indexes
3068 */
3069 element = priv->tx_pend_list.next;
3070 packet = list_entry(element, struct ipw2100_tx_packet, list);
3071
3072 if (unlikely(1 + packet->info.d_struct.txb->nr_frags >
3073 IPW_MAX_BDS)) {
3074 /* TODO: Support merging buffers if more than
3075 * IPW_MAX_BDS are used */
3076 IPW_DEBUG_INFO("%s: Maximum BD threshold exceeded. "
3077 "Increase fragmentation level.\n",
3078 priv->net_dev->name);
3079 }
3080
3081 if (txq->available <= 3 + packet->info.d_struct.txb->nr_frags) {
3082 IPW_DEBUG_TX("no room in tx_queue\n");
3083 break;
3084 }
3085
3086 list_del(element);
3087 DEC_STAT(&priv->tx_pend_stat);
3088
3089 tbd = &txq->drv[txq->next];
3090
3091 packet->index = txq->next;
3092
3093 ipw_hdr = packet->info.d_struct.data;
3094 hdr = (struct libipw_hdr_3addr *)packet->info.d_struct.txb->
3095 fragments[0]->data;
3096
3097 if (priv->ieee->iw_mode == IW_MODE_INFRA) {
3098 /* To DS: Addr1 = BSSID, Addr2 = SA,
3099 Addr3 = DA */
3100 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3101 memcpy(ipw_hdr->dst_addr, hdr->addr3, ETH_ALEN);
3102 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
3103 /* not From/To DS: Addr1 = DA, Addr2 = SA,
3104 Addr3 = BSSID */
3105 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3106 memcpy(ipw_hdr->dst_addr, hdr->addr1, ETH_ALEN);
3107 }
3108
3109 ipw_hdr->host_command_reg = SEND;
3110 ipw_hdr->host_command_reg1 = 0;
3111
3112 /* For now we only support host based encryption */
3113 ipw_hdr->needs_encryption = 0;
3114 ipw_hdr->encrypted = packet->info.d_struct.txb->encrypted;
3115 if (packet->info.d_struct.txb->nr_frags > 1)
3116 ipw_hdr->fragment_size =
3117 packet->info.d_struct.txb->frag_size -
3118 LIBIPW_3ADDR_LEN;
3119 else
3120 ipw_hdr->fragment_size = 0;
3121
3122 tbd->host_addr = packet->info.d_struct.data_phys;
3123 tbd->buf_length = sizeof(struct ipw2100_data_header);
3124 tbd->num_fragments = 1 + packet->info.d_struct.txb->nr_frags;
3125 tbd->status.info.field =
3126 IPW_BD_STATUS_TX_FRAME_802_3 |
3127 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3128 txq->next++;
3129 txq->next %= txq->entries;
3130
3131 IPW_DEBUG_TX("data header tbd TX%d P=%08x L=%d\n",
3132 packet->index, tbd->host_addr, tbd->buf_length);
3133#ifdef CONFIG_IPW2100_DEBUG
3134 if (packet->info.d_struct.txb->nr_frags > 1)
3135 IPW_DEBUG_FRAG("fragment Tx: %d frames\n",
3136 packet->info.d_struct.txb->nr_frags);
3137#endif
3138
3139 for (i = 0; i < packet->info.d_struct.txb->nr_frags; i++) {
3140 tbd = &txq->drv[txq->next];
3141 if (i == packet->info.d_struct.txb->nr_frags - 1)
3142 tbd->status.info.field =
3143 IPW_BD_STATUS_TX_FRAME_802_3 |
3144 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
3145 else
3146 tbd->status.info.field =
3147 IPW_BD_STATUS_TX_FRAME_802_3 |
3148 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3149
3150 tbd->buf_length = packet->info.d_struct.txb->
3151 fragments[i]->len - LIBIPW_3ADDR_LEN;
3152
3153 tbd->host_addr = dma_map_single(&priv->pci_dev->dev,
3154 packet->info.d_struct.
3155 txb->fragments[i]->data +
3156 LIBIPW_3ADDR_LEN,
3157 tbd->buf_length,
3158 DMA_TO_DEVICE);
3159 if (dma_mapping_error(&priv->pci_dev->dev, tbd->host_addr)) {
3160 IPW_DEBUG_TX("dma mapping error\n");
3161 break;
3162 }
3163
3164 IPW_DEBUG_TX("data frag tbd TX%d P=%08x L=%d\n",
3165 txq->next, tbd->host_addr,
3166 tbd->buf_length);
3167
3168 dma_sync_single_for_device(&priv->pci_dev->dev,
3169 tbd->host_addr,
3170 tbd->buf_length,
3171 DMA_TO_DEVICE);
3172
3173 txq->next++;
3174 txq->next %= txq->entries;
3175 }
3176
3177 txq->available -= 1 + packet->info.d_struct.txb->nr_frags;
3178 SET_STAT(&priv->txq_stat, txq->available);
3179
3180 list_add_tail(element, &priv->fw_pend_list);
3181 INC_STAT(&priv->fw_pend_stat);
3182 }
3183
3184 if (txq->next != next) {
3185 /* kick off the DMA by notifying firmware the
3186 * write index has moved; make sure TBD stores are sync'd */
3187 write_register(priv->net_dev,
3188 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3189 txq->next);
3190 }
3191}
3192
3193static void ipw2100_irq_tasklet(struct tasklet_struct *t)
3194{
3195 struct ipw2100_priv *priv = from_tasklet(priv, t, irq_tasklet);
3196 struct net_device *dev = priv->net_dev;
3197 unsigned long flags;
3198 u32 inta, tmp;
3199
3200 spin_lock_irqsave(&priv->low_lock, flags);
3201 ipw2100_disable_interrupts(priv);
3202
3203 read_register(dev, IPW_REG_INTA, &inta);
3204
3205 IPW_DEBUG_ISR("enter - INTA: 0x%08lX\n",
3206 (unsigned long)inta & IPW_INTERRUPT_MASK);
3207
3208 priv->in_isr++;
3209 priv->interrupts++;
3210
3211 /* We do not loop and keep polling for more interrupts as this
3212 * is frowned upon and doesn't play nicely with other potentially
3213 * chained IRQs */
3214 IPW_DEBUG_ISR("INTA: 0x%08lX\n",
3215 (unsigned long)inta & IPW_INTERRUPT_MASK);
3216
3217 if (inta & IPW2100_INTA_FATAL_ERROR) {
3218 printk(KERN_WARNING DRV_NAME
3219 ": Fatal interrupt. Scheduling firmware restart.\n");
3220 priv->inta_other++;
3221 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FATAL_ERROR);
3222
3223 read_nic_dword(dev, IPW_NIC_FATAL_ERROR, &priv->fatal_error);
3224 IPW_DEBUG_INFO("%s: Fatal error value: 0x%08X\n",
3225 priv->net_dev->name, priv->fatal_error);
3226
3227 read_nic_dword(dev, IPW_ERROR_ADDR(priv->fatal_error), &tmp);
3228 IPW_DEBUG_INFO("%s: Fatal error address value: 0x%08X\n",
3229 priv->net_dev->name, tmp);
3230
3231 /* Wake up any sleeping jobs */
3232 schedule_reset(priv);
3233 }
3234
3235 if (inta & IPW2100_INTA_PARITY_ERROR) {
3236 printk(KERN_ERR DRV_NAME
3237 ": ***** PARITY ERROR INTERRUPT !!!!\n");
3238 priv->inta_other++;
3239 write_register(dev, IPW_REG_INTA, IPW2100_INTA_PARITY_ERROR);
3240 }
3241
3242 if (inta & IPW2100_INTA_RX_TRANSFER) {
3243 IPW_DEBUG_ISR("RX interrupt\n");
3244
3245 priv->rx_interrupts++;
3246
3247 write_register(dev, IPW_REG_INTA, IPW2100_INTA_RX_TRANSFER);
3248
3249 __ipw2100_rx_process(priv);
3250 __ipw2100_tx_complete(priv);
3251 }
3252
3253 if (inta & IPW2100_INTA_TX_TRANSFER) {
3254 IPW_DEBUG_ISR("TX interrupt\n");
3255
3256 priv->tx_interrupts++;
3257
3258 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_TRANSFER);
3259
3260 __ipw2100_tx_complete(priv);
3261 ipw2100_tx_send_commands(priv);
3262 ipw2100_tx_send_data(priv);
3263 }
3264
3265 if (inta & IPW2100_INTA_TX_COMPLETE) {
3266 IPW_DEBUG_ISR("TX complete\n");
3267 priv->inta_other++;
3268 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_COMPLETE);
3269
3270 __ipw2100_tx_complete(priv);
3271 }
3272
3273 if (inta & IPW2100_INTA_EVENT_INTERRUPT) {
3274 /* ipw2100_handle_event(dev); */
3275 priv->inta_other++;
3276 write_register(dev, IPW_REG_INTA, IPW2100_INTA_EVENT_INTERRUPT);
3277 }
3278
3279 if (inta & IPW2100_INTA_FW_INIT_DONE) {
3280 IPW_DEBUG_ISR("FW init done interrupt\n");
3281 priv->inta_other++;
3282
3283 read_register(dev, IPW_REG_INTA, &tmp);
3284 if (tmp & (IPW2100_INTA_FATAL_ERROR |
3285 IPW2100_INTA_PARITY_ERROR)) {
3286 write_register(dev, IPW_REG_INTA,
3287 IPW2100_INTA_FATAL_ERROR |
3288 IPW2100_INTA_PARITY_ERROR);
3289 }
3290
3291 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FW_INIT_DONE);
3292 }
3293
3294 if (inta & IPW2100_INTA_STATUS_CHANGE) {
3295 IPW_DEBUG_ISR("Status change interrupt\n");
3296 priv->inta_other++;
3297 write_register(dev, IPW_REG_INTA, IPW2100_INTA_STATUS_CHANGE);
3298 }
3299
3300 if (inta & IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE) {
3301 IPW_DEBUG_ISR("slave host mode interrupt\n");
3302 priv->inta_other++;
3303 write_register(dev, IPW_REG_INTA,
3304 IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE);
3305 }
3306
3307 priv->in_isr--;
3308 ipw2100_enable_interrupts(priv);
3309
3310 spin_unlock_irqrestore(&priv->low_lock, flags);
3311
3312 IPW_DEBUG_ISR("exit\n");
3313}
3314
3315static irqreturn_t ipw2100_interrupt(int irq, void *data)
3316{
3317 struct ipw2100_priv *priv = data;
3318 u32 inta, inta_mask;
3319
3320 if (!data)
3321 return IRQ_NONE;
3322
3323 spin_lock(&priv->low_lock);
3324
3325 /* We check to see if we should be ignoring interrupts before
3326 * we touch the hardware. During ucode load if we try and handle
3327 * an interrupt we can cause keyboard problems as well as cause
3328 * the ucode to fail to initialize */
3329 if (!(priv->status & STATUS_INT_ENABLED)) {
3330 /* Shared IRQ */
3331 goto none;
3332 }
3333
3334 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
3335 read_register(priv->net_dev, IPW_REG_INTA, &inta);
3336
3337 if (inta == 0xFFFFFFFF) {
3338 /* Hardware disappeared */
3339 printk(KERN_WARNING DRV_NAME ": IRQ INTA == 0xFFFFFFFF\n");
3340 goto none;
3341 }
3342
3343 inta &= IPW_INTERRUPT_MASK;
3344
3345 if (!(inta & inta_mask)) {
3346 /* Shared interrupt */
3347 goto none;
3348 }
3349
3350 /* We disable the hardware interrupt here just to prevent unneeded
3351 * calls to be made. We disable this again within the actual
3352 * work tasklet, so if another part of the code re-enables the
3353 * interrupt, that is fine */
3354 ipw2100_disable_interrupts(priv);
3355
3356 tasklet_schedule(&priv->irq_tasklet);
3357 spin_unlock(&priv->low_lock);
3358
3359 return IRQ_HANDLED;
3360 none:
3361 spin_unlock(&priv->low_lock);
3362 return IRQ_NONE;
3363}
3364
3365static netdev_tx_t ipw2100_tx(struct libipw_txb *txb,
3366 struct net_device *dev, int pri)
3367{
3368 struct ipw2100_priv *priv = libipw_priv(dev);
3369 struct list_head *element;
3370 struct ipw2100_tx_packet *packet;
3371 unsigned long flags;
3372
3373 spin_lock_irqsave(&priv->low_lock, flags);
3374
3375 if (!(priv->status & STATUS_ASSOCIATED)) {
3376 IPW_DEBUG_INFO("Can not transmit when not connected.\n");
3377 priv->net_dev->stats.tx_carrier_errors++;
3378 netif_stop_queue(dev);
3379 goto fail_unlock;
3380 }
3381
3382 if (list_empty(&priv->tx_free_list))
3383 goto fail_unlock;
3384
3385 element = priv->tx_free_list.next;
3386 packet = list_entry(element, struct ipw2100_tx_packet, list);
3387
3388 packet->info.d_struct.txb = txb;
3389
3390 IPW_DEBUG_TX("Sending fragment (%d bytes):\n", txb->fragments[0]->len);
3391 printk_buf(IPW_DL_TX, txb->fragments[0]->data, txb->fragments[0]->len);
3392
3393 packet->jiffy_start = jiffies;
3394
3395 list_del(element);
3396 DEC_STAT(&priv->tx_free_stat);
3397
3398 list_add_tail(element, &priv->tx_pend_list);
3399 INC_STAT(&priv->tx_pend_stat);
3400
3401 ipw2100_tx_send_data(priv);
3402
3403 spin_unlock_irqrestore(&priv->low_lock, flags);
3404 return NETDEV_TX_OK;
3405
3406fail_unlock:
3407 netif_stop_queue(dev);
3408 spin_unlock_irqrestore(&priv->low_lock, flags);
3409 return NETDEV_TX_BUSY;
3410}
3411
3412static int ipw2100_msg_allocate(struct ipw2100_priv *priv)
3413{
3414 int i, j, err = -EINVAL;
3415 void *v;
3416 dma_addr_t p;
3417
3418 priv->msg_buffers =
3419 kmalloc_array(IPW_COMMAND_POOL_SIZE,
3420 sizeof(struct ipw2100_tx_packet),
3421 GFP_KERNEL);
3422 if (!priv->msg_buffers)
3423 return -ENOMEM;
3424
3425 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3426 v = dma_alloc_coherent(&priv->pci_dev->dev,
3427 sizeof(struct ipw2100_cmd_header), &p,
3428 GFP_KERNEL);
3429 if (!v) {
3430 printk(KERN_ERR DRV_NAME ": "
3431 "%s: PCI alloc failed for msg "
3432 "buffers.\n", priv->net_dev->name);
3433 err = -ENOMEM;
3434 break;
3435 }
3436
3437 priv->msg_buffers[i].type = COMMAND;
3438 priv->msg_buffers[i].info.c_struct.cmd =
3439 (struct ipw2100_cmd_header *)v;
3440 priv->msg_buffers[i].info.c_struct.cmd_phys = p;
3441 }
3442
3443 if (i == IPW_COMMAND_POOL_SIZE)
3444 return 0;
3445
3446 for (j = 0; j < i; j++) {
3447 dma_free_coherent(&priv->pci_dev->dev,
3448 sizeof(struct ipw2100_cmd_header),
3449 priv->msg_buffers[j].info.c_struct.cmd,
3450 priv->msg_buffers[j].info.c_struct.cmd_phys);
3451 }
3452
3453 kfree(priv->msg_buffers);
3454 priv->msg_buffers = NULL;
3455
3456 return err;
3457}
3458
3459static int ipw2100_msg_initialize(struct ipw2100_priv *priv)
3460{
3461 int i;
3462
3463 INIT_LIST_HEAD(&priv->msg_free_list);
3464 INIT_LIST_HEAD(&priv->msg_pend_list);
3465
3466 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++)
3467 list_add_tail(&priv->msg_buffers[i].list, &priv->msg_free_list);
3468 SET_STAT(&priv->msg_free_stat, i);
3469
3470 return 0;
3471}
3472
3473static void ipw2100_msg_free(struct ipw2100_priv *priv)
3474{
3475 int i;
3476
3477 if (!priv->msg_buffers)
3478 return;
3479
3480 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3481 dma_free_coherent(&priv->pci_dev->dev,
3482 sizeof(struct ipw2100_cmd_header),
3483 priv->msg_buffers[i].info.c_struct.cmd,
3484 priv->msg_buffers[i].info.c_struct.cmd_phys);
3485 }
3486
3487 kfree(priv->msg_buffers);
3488 priv->msg_buffers = NULL;
3489}
3490
3491static ssize_t pci_show(struct device *d, struct device_attribute *attr,
3492 char *buf)
3493{
3494 struct pci_dev *pci_dev = to_pci_dev(d);
3495 char *out = buf;
3496 int i, j;
3497 u32 val;
3498
3499 for (i = 0; i < 16; i++) {
3500 out += sprintf(out, "[%08X] ", i * 16);
3501 for (j = 0; j < 16; j += 4) {
3502 pci_read_config_dword(pci_dev, i * 16 + j, &val);
3503 out += sprintf(out, "%08X ", val);
3504 }
3505 out += sprintf(out, "\n");
3506 }
3507
3508 return out - buf;
3509}
3510
3511static DEVICE_ATTR_RO(pci);
3512
3513static ssize_t cfg_show(struct device *d, struct device_attribute *attr,
3514 char *buf)
3515{
3516 struct ipw2100_priv *p = dev_get_drvdata(d);
3517 return sprintf(buf, "0x%08x\n", (int)p->config);
3518}
3519
3520static DEVICE_ATTR_RO(cfg);
3521
3522static ssize_t status_show(struct device *d, struct device_attribute *attr,
3523 char *buf)
3524{
3525 struct ipw2100_priv *p = dev_get_drvdata(d);
3526 return sprintf(buf, "0x%08x\n", (int)p->status);
3527}
3528
3529static DEVICE_ATTR_RO(status);
3530
3531static ssize_t capability_show(struct device *d, struct device_attribute *attr,
3532 char *buf)
3533{
3534 struct ipw2100_priv *p = dev_get_drvdata(d);
3535 return sprintf(buf, "0x%08x\n", (int)p->capability);
3536}
3537
3538static DEVICE_ATTR_RO(capability);
3539
3540#define IPW2100_REG(x) { IPW_ ##x, #x }
3541static const struct {
3542 u32 addr;
3543 const char *name;
3544} hw_data[] = {
3545IPW2100_REG(REG_GP_CNTRL),
3546 IPW2100_REG(REG_GPIO),
3547 IPW2100_REG(REG_INTA),
3548 IPW2100_REG(REG_INTA_MASK), IPW2100_REG(REG_RESET_REG),};
3549#define IPW2100_NIC(x, s) { x, #x, s }
3550static const struct {
3551 u32 addr;
3552 const char *name;
3553 size_t size;
3554} nic_data[] = {
3555IPW2100_NIC(IPW2100_CONTROL_REG, 2),
3556 IPW2100_NIC(0x210014, 1), IPW2100_NIC(0x210000, 1),};
3557#define IPW2100_ORD(x, d) { IPW_ORD_ ##x, #x, d }
3558static const struct {
3559 u8 index;
3560 const char *name;
3561 const char *desc;
3562} ord_data[] = {
3563IPW2100_ORD(STAT_TX_HOST_REQUESTS, "requested Host Tx's (MSDU)"),
3564 IPW2100_ORD(STAT_TX_HOST_COMPLETE,
3565 "successful Host Tx's (MSDU)"),
3566 IPW2100_ORD(STAT_TX_DIR_DATA,
3567 "successful Directed Tx's (MSDU)"),
3568 IPW2100_ORD(STAT_TX_DIR_DATA1,
3569 "successful Directed Tx's (MSDU) @ 1MB"),
3570 IPW2100_ORD(STAT_TX_DIR_DATA2,
3571 "successful Directed Tx's (MSDU) @ 2MB"),
3572 IPW2100_ORD(STAT_TX_DIR_DATA5_5,
3573 "successful Directed Tx's (MSDU) @ 5_5MB"),
3574 IPW2100_ORD(STAT_TX_DIR_DATA11,
3575 "successful Directed Tx's (MSDU) @ 11MB"),
3576 IPW2100_ORD(STAT_TX_NODIR_DATA1,
3577 "successful Non_Directed Tx's (MSDU) @ 1MB"),
3578 IPW2100_ORD(STAT_TX_NODIR_DATA2,
3579 "successful Non_Directed Tx's (MSDU) @ 2MB"),
3580 IPW2100_ORD(STAT_TX_NODIR_DATA5_5,
3581 "successful Non_Directed Tx's (MSDU) @ 5.5MB"),
3582 IPW2100_ORD(STAT_TX_NODIR_DATA11,
3583 "successful Non_Directed Tx's (MSDU) @ 11MB"),
3584 IPW2100_ORD(STAT_NULL_DATA, "successful NULL data Tx's"),
3585 IPW2100_ORD(STAT_TX_RTS, "successful Tx RTS"),
3586 IPW2100_ORD(STAT_TX_CTS, "successful Tx CTS"),
3587 IPW2100_ORD(STAT_TX_ACK, "successful Tx ACK"),
3588 IPW2100_ORD(STAT_TX_ASSN, "successful Association Tx's"),
3589 IPW2100_ORD(STAT_TX_ASSN_RESP,
3590 "successful Association response Tx's"),
3591 IPW2100_ORD(STAT_TX_REASSN,
3592 "successful Reassociation Tx's"),
3593 IPW2100_ORD(STAT_TX_REASSN_RESP,
3594 "successful Reassociation response Tx's"),
3595 IPW2100_ORD(STAT_TX_PROBE,
3596 "probes successfully transmitted"),
3597 IPW2100_ORD(STAT_TX_PROBE_RESP,
3598 "probe responses successfully transmitted"),
3599 IPW2100_ORD(STAT_TX_BEACON, "tx beacon"),
3600 IPW2100_ORD(STAT_TX_ATIM, "Tx ATIM"),
3601 IPW2100_ORD(STAT_TX_DISASSN,
3602 "successful Disassociation TX"),
3603 IPW2100_ORD(STAT_TX_AUTH, "successful Authentication Tx"),
3604 IPW2100_ORD(STAT_TX_DEAUTH,
3605 "successful Deauthentication TX"),
3606 IPW2100_ORD(STAT_TX_TOTAL_BYTES,
3607 "Total successful Tx data bytes"),
3608 IPW2100_ORD(STAT_TX_RETRIES, "Tx retries"),
3609 IPW2100_ORD(STAT_TX_RETRY1, "Tx retries at 1MBPS"),
3610 IPW2100_ORD(STAT_TX_RETRY2, "Tx retries at 2MBPS"),
3611 IPW2100_ORD(STAT_TX_RETRY5_5, "Tx retries at 5.5MBPS"),
3612 IPW2100_ORD(STAT_TX_RETRY11, "Tx retries at 11MBPS"),
3613 IPW2100_ORD(STAT_TX_FAILURES, "Tx Failures"),
3614 IPW2100_ORD(STAT_TX_MAX_TRIES_IN_HOP,
3615 "times max tries in a hop failed"),
3616 IPW2100_ORD(STAT_TX_DISASSN_FAIL,
3617 "times disassociation failed"),
3618 IPW2100_ORD(STAT_TX_ERR_CTS, "missed/bad CTS frames"),
3619 IPW2100_ORD(STAT_TX_ERR_ACK, "tx err due to acks"),
3620 IPW2100_ORD(STAT_RX_HOST, "packets passed to host"),
3621 IPW2100_ORD(STAT_RX_DIR_DATA, "directed packets"),
3622 IPW2100_ORD(STAT_RX_DIR_DATA1, "directed packets at 1MB"),
3623 IPW2100_ORD(STAT_RX_DIR_DATA2, "directed packets at 2MB"),
3624 IPW2100_ORD(STAT_RX_DIR_DATA5_5,
3625 "directed packets at 5.5MB"),
3626 IPW2100_ORD(STAT_RX_DIR_DATA11, "directed packets at 11MB"),
3627 IPW2100_ORD(STAT_RX_NODIR_DATA, "nondirected packets"),
3628 IPW2100_ORD(STAT_RX_NODIR_DATA1,
3629 "nondirected packets at 1MB"),
3630 IPW2100_ORD(STAT_RX_NODIR_DATA2,
3631 "nondirected packets at 2MB"),
3632 IPW2100_ORD(STAT_RX_NODIR_DATA5_5,
3633 "nondirected packets at 5.5MB"),
3634 IPW2100_ORD(STAT_RX_NODIR_DATA11,
3635 "nondirected packets at 11MB"),
3636 IPW2100_ORD(STAT_RX_NULL_DATA, "null data rx's"),
3637 IPW2100_ORD(STAT_RX_RTS, "Rx RTS"), IPW2100_ORD(STAT_RX_CTS,
3638 "Rx CTS"),
3639 IPW2100_ORD(STAT_RX_ACK, "Rx ACK"),
3640 IPW2100_ORD(STAT_RX_CFEND, "Rx CF End"),
3641 IPW2100_ORD(STAT_RX_CFEND_ACK, "Rx CF End + CF Ack"),
3642 IPW2100_ORD(STAT_RX_ASSN, "Association Rx's"),
3643 IPW2100_ORD(STAT_RX_ASSN_RESP, "Association response Rx's"),
3644 IPW2100_ORD(STAT_RX_REASSN, "Reassociation Rx's"),
3645 IPW2100_ORD(STAT_RX_REASSN_RESP,
3646 "Reassociation response Rx's"),
3647 IPW2100_ORD(STAT_RX_PROBE, "probe Rx's"),
3648 IPW2100_ORD(STAT_RX_PROBE_RESP, "probe response Rx's"),
3649 IPW2100_ORD(STAT_RX_BEACON, "Rx beacon"),
3650 IPW2100_ORD(STAT_RX_ATIM, "Rx ATIM"),
3651 IPW2100_ORD(STAT_RX_DISASSN, "disassociation Rx"),
3652 IPW2100_ORD(STAT_RX_AUTH, "authentication Rx"),
3653 IPW2100_ORD(STAT_RX_DEAUTH, "deauthentication Rx"),
3654 IPW2100_ORD(STAT_RX_TOTAL_BYTES,
3655 "Total rx data bytes received"),
3656 IPW2100_ORD(STAT_RX_ERR_CRC, "packets with Rx CRC error"),
3657 IPW2100_ORD(STAT_RX_ERR_CRC1, "Rx CRC errors at 1MB"),
3658 IPW2100_ORD(STAT_RX_ERR_CRC2, "Rx CRC errors at 2MB"),
3659 IPW2100_ORD(STAT_RX_ERR_CRC5_5, "Rx CRC errors at 5.5MB"),
3660 IPW2100_ORD(STAT_RX_ERR_CRC11, "Rx CRC errors at 11MB"),
3661 IPW2100_ORD(STAT_RX_DUPLICATE1,
3662 "duplicate rx packets at 1MB"),
3663 IPW2100_ORD(STAT_RX_DUPLICATE2,
3664 "duplicate rx packets at 2MB"),
3665 IPW2100_ORD(STAT_RX_DUPLICATE5_5,
3666 "duplicate rx packets at 5.5MB"),
3667 IPW2100_ORD(STAT_RX_DUPLICATE11,
3668 "duplicate rx packets at 11MB"),
3669 IPW2100_ORD(STAT_RX_DUPLICATE, "duplicate rx packets"),
3670 IPW2100_ORD(PERS_DB_LOCK, "locking fw permanent db"),
3671 IPW2100_ORD(PERS_DB_SIZE, "size of fw permanent db"),
3672 IPW2100_ORD(PERS_DB_ADDR, "address of fw permanent db"),
3673 IPW2100_ORD(STAT_RX_INVALID_PROTOCOL,
3674 "rx frames with invalid protocol"),
3675 IPW2100_ORD(SYS_BOOT_TIME, "Boot time"),
3676 IPW2100_ORD(STAT_RX_NO_BUFFER,
3677 "rx frames rejected due to no buffer"),
3678 IPW2100_ORD(STAT_RX_MISSING_FRAG,
3679 "rx frames dropped due to missing fragment"),
3680 IPW2100_ORD(STAT_RX_ORPHAN_FRAG,
3681 "rx frames dropped due to non-sequential fragment"),
3682 IPW2100_ORD(STAT_RX_ORPHAN_FRAME,
3683 "rx frames dropped due to unmatched 1st frame"),
3684 IPW2100_ORD(STAT_RX_FRAG_AGEOUT,
3685 "rx frames dropped due to uncompleted frame"),
3686 IPW2100_ORD(STAT_RX_ICV_ERRORS,
3687 "ICV errors during decryption"),
3688 IPW2100_ORD(STAT_PSP_SUSPENSION, "times adapter suspended"),
3689 IPW2100_ORD(STAT_PSP_BCN_TIMEOUT, "beacon timeout"),
3690 IPW2100_ORD(STAT_PSP_POLL_TIMEOUT,
3691 "poll response timeouts"),
3692 IPW2100_ORD(STAT_PSP_NONDIR_TIMEOUT,
3693 "timeouts waiting for last {broad,multi}cast pkt"),
3694 IPW2100_ORD(STAT_PSP_RX_DTIMS, "PSP DTIMs received"),
3695 IPW2100_ORD(STAT_PSP_RX_TIMS, "PSP TIMs received"),
3696 IPW2100_ORD(STAT_PSP_STATION_ID, "PSP Station ID"),
3697 IPW2100_ORD(LAST_ASSN_TIME, "RTC time of last association"),
3698 IPW2100_ORD(STAT_PERCENT_MISSED_BCNS,
3699 "current calculation of % missed beacons"),
3700 IPW2100_ORD(STAT_PERCENT_RETRIES,
3701 "current calculation of % missed tx retries"),
3702 IPW2100_ORD(ASSOCIATED_AP_PTR,
3703 "0 if not associated, else pointer to AP table entry"),
3704 IPW2100_ORD(AVAILABLE_AP_CNT,
3705 "AP's described in the AP table"),
3706 IPW2100_ORD(AP_LIST_PTR, "Ptr to list of available APs"),
3707 IPW2100_ORD(STAT_AP_ASSNS, "associations"),
3708 IPW2100_ORD(STAT_ASSN_FAIL, "association failures"),
3709 IPW2100_ORD(STAT_ASSN_RESP_FAIL,
3710 "failures due to response fail"),
3711 IPW2100_ORD(STAT_FULL_SCANS, "full scans"),
3712 IPW2100_ORD(CARD_DISABLED, "Card Disabled"),
3713 IPW2100_ORD(STAT_ROAM_INHIBIT,
3714 "times roaming was inhibited due to activity"),
3715 IPW2100_ORD(RSSI_AT_ASSN,
3716 "RSSI of associated AP at time of association"),
3717 IPW2100_ORD(STAT_ASSN_CAUSE1,
3718 "reassociation: no probe response or TX on hop"),
3719 IPW2100_ORD(STAT_ASSN_CAUSE2,
3720 "reassociation: poor tx/rx quality"),
3721 IPW2100_ORD(STAT_ASSN_CAUSE3,
3722 "reassociation: tx/rx quality (excessive AP load"),
3723 IPW2100_ORD(STAT_ASSN_CAUSE4,
3724 "reassociation: AP RSSI level"),
3725 IPW2100_ORD(STAT_ASSN_CAUSE5,
3726 "reassociations due to load leveling"),
3727 IPW2100_ORD(STAT_AUTH_FAIL, "times authentication failed"),
3728 IPW2100_ORD(STAT_AUTH_RESP_FAIL,
3729 "times authentication response failed"),
3730 IPW2100_ORD(STATION_TABLE_CNT,
3731 "entries in association table"),
3732 IPW2100_ORD(RSSI_AVG_CURR, "Current avg RSSI"),
3733 IPW2100_ORD(POWER_MGMT_MODE, "Power mode - 0=CAM, 1=PSP"),
3734 IPW2100_ORD(COUNTRY_CODE,
3735 "IEEE country code as recv'd from beacon"),
3736 IPW2100_ORD(COUNTRY_CHANNELS,
3737 "channels supported by country"),
3738 IPW2100_ORD(RESET_CNT, "adapter resets (warm)"),
3739 IPW2100_ORD(BEACON_INTERVAL, "Beacon interval"),
3740 IPW2100_ORD(ANTENNA_DIVERSITY,
3741 "TRUE if antenna diversity is disabled"),
3742 IPW2100_ORD(DTIM_PERIOD, "beacon intervals between DTIMs"),
3743 IPW2100_ORD(OUR_FREQ,
3744 "current radio freq lower digits - channel ID"),
3745 IPW2100_ORD(RTC_TIME, "current RTC time"),
3746 IPW2100_ORD(PORT_TYPE, "operating mode"),
3747 IPW2100_ORD(CURRENT_TX_RATE, "current tx rate"),
3748 IPW2100_ORD(SUPPORTED_RATES, "supported tx rates"),
3749 IPW2100_ORD(ATIM_WINDOW, "current ATIM Window"),
3750 IPW2100_ORD(BASIC_RATES, "basic tx rates"),
3751 IPW2100_ORD(NIC_HIGHEST_RATE, "NIC highest tx rate"),
3752 IPW2100_ORD(AP_HIGHEST_RATE, "AP highest tx rate"),
3753 IPW2100_ORD(CAPABILITIES,
3754 "Management frame capability field"),
3755 IPW2100_ORD(AUTH_TYPE, "Type of authentication"),
3756 IPW2100_ORD(RADIO_TYPE, "Adapter card platform type"),
3757 IPW2100_ORD(RTS_THRESHOLD,
3758 "Min packet length for RTS handshaking"),
3759 IPW2100_ORD(INT_MODE, "International mode"),
3760 IPW2100_ORD(FRAGMENTATION_THRESHOLD,
3761 "protocol frag threshold"),
3762 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_START_ADDRESS,
3763 "EEPROM offset in SRAM"),
3764 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_SIZE,
3765 "EEPROM size in SRAM"),
3766 IPW2100_ORD(EEPROM_SKU_CAPABILITY, "EEPROM SKU Capability"),
3767 IPW2100_ORD(EEPROM_IBSS_11B_CHANNELS,
3768 "EEPROM IBSS 11b channel set"),
3769 IPW2100_ORD(MAC_VERSION, "MAC Version"),
3770 IPW2100_ORD(MAC_REVISION, "MAC Revision"),
3771 IPW2100_ORD(RADIO_VERSION, "Radio Version"),
3772 IPW2100_ORD(NIC_MANF_DATE_TIME, "MANF Date/Time STAMP"),
3773 IPW2100_ORD(UCODE_VERSION, "Ucode Version"),};
3774
3775static ssize_t registers_show(struct device *d, struct device_attribute *attr,
3776 char *buf)
3777{
3778 int i;
3779 struct ipw2100_priv *priv = dev_get_drvdata(d);
3780 struct net_device *dev = priv->net_dev;
3781 char *out = buf;
3782 u32 val = 0;
3783
3784 out += sprintf(out, "%30s [Address ] : Hex\n", "Register");
3785
3786 for (i = 0; i < ARRAY_SIZE(hw_data); i++) {
3787 read_register(dev, hw_data[i].addr, &val);
3788 out += sprintf(out, "%30s [%08X] : %08X\n",
3789 hw_data[i].name, hw_data[i].addr, val);
3790 }
3791
3792 return out - buf;
3793}
3794
3795static DEVICE_ATTR_RO(registers);
3796
3797static ssize_t hardware_show(struct device *d, struct device_attribute *attr,
3798 char *buf)
3799{
3800 struct ipw2100_priv *priv = dev_get_drvdata(d);
3801 struct net_device *dev = priv->net_dev;
3802 char *out = buf;
3803 int i;
3804
3805 out += sprintf(out, "%30s [Address ] : Hex\n", "NIC entry");
3806
3807 for (i = 0; i < ARRAY_SIZE(nic_data); i++) {
3808 u8 tmp8;
3809 u16 tmp16;
3810 u32 tmp32;
3811
3812 switch (nic_data[i].size) {
3813 case 1:
3814 read_nic_byte(dev, nic_data[i].addr, &tmp8);
3815 out += sprintf(out, "%30s [%08X] : %02X\n",
3816 nic_data[i].name, nic_data[i].addr,
3817 tmp8);
3818 break;
3819 case 2:
3820 read_nic_word(dev, nic_data[i].addr, &tmp16);
3821 out += sprintf(out, "%30s [%08X] : %04X\n",
3822 nic_data[i].name, nic_data[i].addr,
3823 tmp16);
3824 break;
3825 case 4:
3826 read_nic_dword(dev, nic_data[i].addr, &tmp32);
3827 out += sprintf(out, "%30s [%08X] : %08X\n",
3828 nic_data[i].name, nic_data[i].addr,
3829 tmp32);
3830 break;
3831 }
3832 }
3833 return out - buf;
3834}
3835
3836static DEVICE_ATTR_RO(hardware);
3837
3838static ssize_t memory_show(struct device *d, struct device_attribute *attr,
3839 char *buf)
3840{
3841 struct ipw2100_priv *priv = dev_get_drvdata(d);
3842 struct net_device *dev = priv->net_dev;
3843 static unsigned long loop = 0;
3844 int len = 0;
3845 u32 buffer[4];
3846 int i;
3847 char line[81];
3848
3849 if (loop >= 0x30000)
3850 loop = 0;
3851
3852 /* sysfs provides us PAGE_SIZE buffer */
3853 while (len < PAGE_SIZE - 128 && loop < 0x30000) {
3854
3855 if (priv->snapshot[0])
3856 for (i = 0; i < 4; i++)
3857 buffer[i] =
3858 *(u32 *) SNAPSHOT_ADDR(loop + i * 4);
3859 else
3860 for (i = 0; i < 4; i++)
3861 read_nic_dword(dev, loop + i * 4, &buffer[i]);
3862
3863 if (priv->dump_raw)
3864 len += sprintf(buf + len,
3865 "%c%c%c%c"
3866 "%c%c%c%c"
3867 "%c%c%c%c"
3868 "%c%c%c%c",
3869 ((u8 *) buffer)[0x0],
3870 ((u8 *) buffer)[0x1],
3871 ((u8 *) buffer)[0x2],
3872 ((u8 *) buffer)[0x3],
3873 ((u8 *) buffer)[0x4],
3874 ((u8 *) buffer)[0x5],
3875 ((u8 *) buffer)[0x6],
3876 ((u8 *) buffer)[0x7],
3877 ((u8 *) buffer)[0x8],
3878 ((u8 *) buffer)[0x9],
3879 ((u8 *) buffer)[0xa],
3880 ((u8 *) buffer)[0xb],
3881 ((u8 *) buffer)[0xc],
3882 ((u8 *) buffer)[0xd],
3883 ((u8 *) buffer)[0xe],
3884 ((u8 *) buffer)[0xf]);
3885 else
3886 len += sprintf(buf + len, "%s\n",
3887 snprint_line(line, sizeof(line),
3888 (u8 *) buffer, 16, loop));
3889 loop += 16;
3890 }
3891
3892 return len;
3893}
3894
3895static ssize_t memory_store(struct device *d, struct device_attribute *attr,
3896 const char *buf, size_t count)
3897{
3898 struct ipw2100_priv *priv = dev_get_drvdata(d);
3899 struct net_device *dev = priv->net_dev;
3900 const char *p = buf;
3901
3902 (void)dev; /* kill unused-var warning for debug-only code */
3903
3904 if (count < 1)
3905 return count;
3906
3907 if (p[0] == '1' ||
3908 (count >= 2 && tolower(p[0]) == 'o' && tolower(p[1]) == 'n')) {
3909 IPW_DEBUG_INFO("%s: Setting memory dump to RAW mode.\n",
3910 dev->name);
3911 priv->dump_raw = 1;
3912
3913 } else if (p[0] == '0' || (count >= 2 && tolower(p[0]) == 'o' &&
3914 tolower(p[1]) == 'f')) {
3915 IPW_DEBUG_INFO("%s: Setting memory dump to HEX mode.\n",
3916 dev->name);
3917 priv->dump_raw = 0;
3918
3919 } else if (tolower(p[0]) == 'r') {
3920 IPW_DEBUG_INFO("%s: Resetting firmware snapshot.\n", dev->name);
3921 ipw2100_snapshot_free(priv);
3922
3923 } else
3924 IPW_DEBUG_INFO("%s: Usage: 0|on = HEX, 1|off = RAW, "
3925 "reset = clear memory snapshot\n", dev->name);
3926
3927 return count;
3928}
3929
3930static DEVICE_ATTR_RW(memory);
3931
3932static ssize_t ordinals_show(struct device *d, struct device_attribute *attr,
3933 char *buf)
3934{
3935 struct ipw2100_priv *priv = dev_get_drvdata(d);
3936 u32 val = 0;
3937 int len = 0;
3938 u32 val_len;
3939 static int loop = 0;
3940
3941 if (priv->status & STATUS_RF_KILL_MASK)
3942 return 0;
3943
3944 if (loop >= ARRAY_SIZE(ord_data))
3945 loop = 0;
3946
3947 /* sysfs provides us PAGE_SIZE buffer */
3948 while (len < PAGE_SIZE - 128 && loop < ARRAY_SIZE(ord_data)) {
3949 val_len = sizeof(u32);
3950
3951 if (ipw2100_get_ordinal(priv, ord_data[loop].index, &val,
3952 &val_len))
3953 len += sprintf(buf + len, "[0x%02X] = ERROR %s\n",
3954 ord_data[loop].index,
3955 ord_data[loop].desc);
3956 else
3957 len += sprintf(buf + len, "[0x%02X] = 0x%08X %s\n",
3958 ord_data[loop].index, val,
3959 ord_data[loop].desc);
3960 loop++;
3961 }
3962
3963 return len;
3964}
3965
3966static DEVICE_ATTR_RO(ordinals);
3967
3968static ssize_t stats_show(struct device *d, struct device_attribute *attr,
3969 char *buf)
3970{
3971 struct ipw2100_priv *priv = dev_get_drvdata(d);
3972 char *out = buf;
3973
3974 out += sprintf(out, "interrupts: %d {tx: %d, rx: %d, other: %d}\n",
3975 priv->interrupts, priv->tx_interrupts,
3976 priv->rx_interrupts, priv->inta_other);
3977 out += sprintf(out, "firmware resets: %d\n", priv->resets);
3978 out += sprintf(out, "firmware hangs: %d\n", priv->hangs);
3979#ifdef CONFIG_IPW2100_DEBUG
3980 out += sprintf(out, "packet mismatch image: %s\n",
3981 priv->snapshot[0] ? "YES" : "NO");
3982#endif
3983
3984 return out - buf;
3985}
3986
3987static DEVICE_ATTR_RO(stats);
3988
3989static int ipw2100_switch_mode(struct ipw2100_priv *priv, u32 mode)
3990{
3991 int err;
3992
3993 if (mode == priv->ieee->iw_mode)
3994 return 0;
3995
3996 err = ipw2100_disable_adapter(priv);
3997 if (err) {
3998 printk(KERN_ERR DRV_NAME ": %s: Could not disable adapter %d\n",
3999 priv->net_dev->name, err);
4000 return err;
4001 }
4002
4003 switch (mode) {
4004 case IW_MODE_INFRA:
4005 priv->net_dev->type = ARPHRD_ETHER;
4006 break;
4007 case IW_MODE_ADHOC:
4008 priv->net_dev->type = ARPHRD_ETHER;
4009 break;
4010#ifdef CONFIG_IPW2100_MONITOR
4011 case IW_MODE_MONITOR:
4012 priv->last_mode = priv->ieee->iw_mode;
4013 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
4014 break;
4015#endif /* CONFIG_IPW2100_MONITOR */
4016 }
4017
4018 priv->ieee->iw_mode = mode;
4019
4020#ifdef CONFIG_PM
4021 /* Indicate ipw2100_download_firmware download firmware
4022 * from disk instead of memory. */
4023 ipw2100_firmware.version = 0;
4024#endif
4025
4026 printk(KERN_INFO "%s: Resetting on mode change.\n", priv->net_dev->name);
4027 priv->reset_backoff = 0;
4028 schedule_reset(priv);
4029
4030 return 0;
4031}
4032
4033static ssize_t internals_show(struct device *d, struct device_attribute *attr,
4034 char *buf)
4035{
4036 struct ipw2100_priv *priv = dev_get_drvdata(d);
4037 int len = 0;
4038
4039#define DUMP_VAR(x,y) len += sprintf(buf + len, # x ": %" y "\n", priv-> x)
4040
4041 if (priv->status & STATUS_ASSOCIATED)
4042 len += sprintf(buf + len, "connected: %llu\n",
4043 ktime_get_boottime_seconds() - priv->connect_start);
4044 else
4045 len += sprintf(buf + len, "not connected\n");
4046
4047 DUMP_VAR(ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx], "p");
4048 DUMP_VAR(status, "08lx");
4049 DUMP_VAR(config, "08lx");
4050 DUMP_VAR(capability, "08lx");
4051
4052 len +=
4053 sprintf(buf + len, "last_rtc: %lu\n",
4054 (unsigned long)priv->last_rtc);
4055
4056 DUMP_VAR(fatal_error, "d");
4057 DUMP_VAR(stop_hang_check, "d");
4058 DUMP_VAR(stop_rf_kill, "d");
4059 DUMP_VAR(messages_sent, "d");
4060
4061 DUMP_VAR(tx_pend_stat.value, "d");
4062 DUMP_VAR(tx_pend_stat.hi, "d");
4063
4064 DUMP_VAR(tx_free_stat.value, "d");
4065 DUMP_VAR(tx_free_stat.lo, "d");
4066
4067 DUMP_VAR(msg_free_stat.value, "d");
4068 DUMP_VAR(msg_free_stat.lo, "d");
4069
4070 DUMP_VAR(msg_pend_stat.value, "d");
4071 DUMP_VAR(msg_pend_stat.hi, "d");
4072
4073 DUMP_VAR(fw_pend_stat.value, "d");
4074 DUMP_VAR(fw_pend_stat.hi, "d");
4075
4076 DUMP_VAR(txq_stat.value, "d");
4077 DUMP_VAR(txq_stat.lo, "d");
4078
4079 DUMP_VAR(ieee->scans, "d");
4080 DUMP_VAR(reset_backoff, "lld");
4081
4082 return len;
4083}
4084
4085static DEVICE_ATTR_RO(internals);
4086
4087static ssize_t bssinfo_show(struct device *d, struct device_attribute *attr,
4088 char *buf)
4089{
4090 struct ipw2100_priv *priv = dev_get_drvdata(d);
4091 char essid[IW_ESSID_MAX_SIZE + 1];
4092 u8 bssid[ETH_ALEN];
4093 u32 chan = 0;
4094 char *out = buf;
4095 unsigned int length;
4096 int ret;
4097
4098 if (priv->status & STATUS_RF_KILL_MASK)
4099 return 0;
4100
4101 memset(essid, 0, sizeof(essid));
4102 memset(bssid, 0, sizeof(bssid));
4103
4104 length = IW_ESSID_MAX_SIZE;
4105 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID, essid, &length);
4106 if (ret)
4107 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4108 __LINE__);
4109
4110 length = sizeof(bssid);
4111 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
4112 bssid, &length);
4113 if (ret)
4114 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4115 __LINE__);
4116
4117 length = sizeof(u32);
4118 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &length);
4119 if (ret)
4120 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4121 __LINE__);
4122
4123 out += sprintf(out, "ESSID: %s\n", essid);
4124 out += sprintf(out, "BSSID: %pM\n", bssid);
4125 out += sprintf(out, "Channel: %d\n", chan);
4126
4127 return out - buf;
4128}
4129
4130static DEVICE_ATTR_RO(bssinfo);
4131
4132#ifdef CONFIG_IPW2100_DEBUG
4133static ssize_t debug_level_show(struct device_driver *d, char *buf)
4134{
4135 return sprintf(buf, "0x%08X\n", ipw2100_debug_level);
4136}
4137
4138static ssize_t debug_level_store(struct device_driver *d,
4139 const char *buf, size_t count)
4140{
4141 u32 val;
4142 int ret;
4143
4144 ret = kstrtou32(buf, 0, &val);
4145 if (ret)
4146 IPW_DEBUG_INFO(": %s is not in hex or decimal form.\n", buf);
4147 else
4148 ipw2100_debug_level = val;
4149
4150 return strnlen(buf, count);
4151}
4152static DRIVER_ATTR_RW(debug_level);
4153#endif /* CONFIG_IPW2100_DEBUG */
4154
4155static ssize_t fatal_error_show(struct device *d,
4156 struct device_attribute *attr, char *buf)
4157{
4158 struct ipw2100_priv *priv = dev_get_drvdata(d);
4159 char *out = buf;
4160 int i;
4161
4162 if (priv->fatal_error)
4163 out += sprintf(out, "0x%08X\n", priv->fatal_error);
4164 else
4165 out += sprintf(out, "0\n");
4166
4167 for (i = 1; i <= IPW2100_ERROR_QUEUE; i++) {
4168 if (!priv->fatal_errors[(priv->fatal_index - i) %
4169 IPW2100_ERROR_QUEUE])
4170 continue;
4171
4172 out += sprintf(out, "%d. 0x%08X\n", i,
4173 priv->fatal_errors[(priv->fatal_index - i) %
4174 IPW2100_ERROR_QUEUE]);
4175 }
4176
4177 return out - buf;
4178}
4179
4180static ssize_t fatal_error_store(struct device *d,
4181 struct device_attribute *attr, const char *buf,
4182 size_t count)
4183{
4184 struct ipw2100_priv *priv = dev_get_drvdata(d);
4185 schedule_reset(priv);
4186 return count;
4187}
4188
4189static DEVICE_ATTR_RW(fatal_error);
4190
4191static ssize_t scan_age_show(struct device *d, struct device_attribute *attr,
4192 char *buf)
4193{
4194 struct ipw2100_priv *priv = dev_get_drvdata(d);
4195 return sprintf(buf, "%d\n", priv->ieee->scan_age);
4196}
4197
4198static ssize_t scan_age_store(struct device *d, struct device_attribute *attr,
4199 const char *buf, size_t count)
4200{
4201 struct ipw2100_priv *priv = dev_get_drvdata(d);
4202 struct net_device *dev = priv->net_dev;
4203 unsigned long val;
4204 int ret;
4205
4206 (void)dev; /* kill unused-var warning for debug-only code */
4207
4208 IPW_DEBUG_INFO("enter\n");
4209
4210 ret = kstrtoul(buf, 0, &val);
4211 if (ret) {
4212 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
4213 } else {
4214 priv->ieee->scan_age = val;
4215 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
4216 }
4217
4218 IPW_DEBUG_INFO("exit\n");
4219 return strnlen(buf, count);
4220}
4221
4222static DEVICE_ATTR_RW(scan_age);
4223
4224static ssize_t rf_kill_show(struct device *d, struct device_attribute *attr,
4225 char *buf)
4226{
4227 /* 0 - RF kill not enabled
4228 1 - SW based RF kill active (sysfs)
4229 2 - HW based RF kill active
4230 3 - Both HW and SW baed RF kill active */
4231 struct ipw2100_priv *priv = dev_get_drvdata(d);
4232 int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
4233 (rf_kill_active(priv) ? 0x2 : 0x0);
4234 return sprintf(buf, "%i\n", val);
4235}
4236
4237static int ipw_radio_kill_sw(struct ipw2100_priv *priv, int disable_radio)
4238{
4239 if ((disable_radio ? 1 : 0) ==
4240 (priv->status & STATUS_RF_KILL_SW ? 1 : 0))
4241 return 0;
4242
4243 IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n",
4244 disable_radio ? "OFF" : "ON");
4245
4246 mutex_lock(&priv->action_mutex);
4247
4248 if (disable_radio) {
4249 priv->status |= STATUS_RF_KILL_SW;
4250 ipw2100_down(priv);
4251 } else {
4252 priv->status &= ~STATUS_RF_KILL_SW;
4253 if (rf_kill_active(priv)) {
4254 IPW_DEBUG_RF_KILL("Can not turn radio back on - "
4255 "disabled by HW switch\n");
4256 /* Make sure the RF_KILL check timer is running */
4257 priv->stop_rf_kill = 0;
4258 mod_delayed_work(system_wq, &priv->rf_kill,
4259 round_jiffies_relative(HZ));
4260 } else
4261 schedule_reset(priv);
4262 }
4263
4264 mutex_unlock(&priv->action_mutex);
4265 return 1;
4266}
4267
4268static ssize_t rf_kill_store(struct device *d, struct device_attribute *attr,
4269 const char *buf, size_t count)
4270{
4271 struct ipw2100_priv *priv = dev_get_drvdata(d);
4272 ipw_radio_kill_sw(priv, buf[0] == '1');
4273 return count;
4274}
4275
4276static DEVICE_ATTR_RW(rf_kill);
4277
4278static struct attribute *ipw2100_sysfs_entries[] = {
4279 &dev_attr_hardware.attr,
4280 &dev_attr_registers.attr,
4281 &dev_attr_ordinals.attr,
4282 &dev_attr_pci.attr,
4283 &dev_attr_stats.attr,
4284 &dev_attr_internals.attr,
4285 &dev_attr_bssinfo.attr,
4286 &dev_attr_memory.attr,
4287 &dev_attr_scan_age.attr,
4288 &dev_attr_fatal_error.attr,
4289 &dev_attr_rf_kill.attr,
4290 &dev_attr_cfg.attr,
4291 &dev_attr_status.attr,
4292 &dev_attr_capability.attr,
4293 NULL,
4294};
4295
4296static const struct attribute_group ipw2100_attribute_group = {
4297 .attrs = ipw2100_sysfs_entries,
4298};
4299
4300static int status_queue_allocate(struct ipw2100_priv *priv, int entries)
4301{
4302 struct ipw2100_status_queue *q = &priv->status_queue;
4303
4304 IPW_DEBUG_INFO("enter\n");
4305
4306 q->size = entries * sizeof(struct ipw2100_status);
4307 q->drv = dma_alloc_coherent(&priv->pci_dev->dev, q->size, &q->nic,
4308 GFP_KERNEL);
4309 if (!q->drv) {
4310 IPW_DEBUG_WARNING("Can not allocate status queue.\n");
4311 return -ENOMEM;
4312 }
4313
4314 IPW_DEBUG_INFO("exit\n");
4315
4316 return 0;
4317}
4318
4319static void status_queue_free(struct ipw2100_priv *priv)
4320{
4321 IPW_DEBUG_INFO("enter\n");
4322
4323 if (priv->status_queue.drv) {
4324 dma_free_coherent(&priv->pci_dev->dev,
4325 priv->status_queue.size,
4326 priv->status_queue.drv,
4327 priv->status_queue.nic);
4328 priv->status_queue.drv = NULL;
4329 }
4330
4331 IPW_DEBUG_INFO("exit\n");
4332}
4333
4334static int bd_queue_allocate(struct ipw2100_priv *priv,
4335 struct ipw2100_bd_queue *q, int entries)
4336{
4337 IPW_DEBUG_INFO("enter\n");
4338
4339 memset(q, 0, sizeof(struct ipw2100_bd_queue));
4340
4341 q->entries = entries;
4342 q->size = entries * sizeof(struct ipw2100_bd);
4343 q->drv = dma_alloc_coherent(&priv->pci_dev->dev, q->size, &q->nic,
4344 GFP_KERNEL);
4345 if (!q->drv) {
4346 IPW_DEBUG_INFO
4347 ("can't allocate shared memory for buffer descriptors\n");
4348 return -ENOMEM;
4349 }
4350
4351 IPW_DEBUG_INFO("exit\n");
4352
4353 return 0;
4354}
4355
4356static void bd_queue_free(struct ipw2100_priv *priv, struct ipw2100_bd_queue *q)
4357{
4358 IPW_DEBUG_INFO("enter\n");
4359
4360 if (!q)
4361 return;
4362
4363 if (q->drv) {
4364 dma_free_coherent(&priv->pci_dev->dev, q->size, q->drv,
4365 q->nic);
4366 q->drv = NULL;
4367 }
4368
4369 IPW_DEBUG_INFO("exit\n");
4370}
4371
4372static void bd_queue_initialize(struct ipw2100_priv *priv,
4373 struct ipw2100_bd_queue *q, u32 base, u32 size,
4374 u32 r, u32 w)
4375{
4376 IPW_DEBUG_INFO("enter\n");
4377
4378 IPW_DEBUG_INFO("initializing bd queue at virt=%p, phys=%08x\n", q->drv,
4379 (u32) q->nic);
4380
4381 write_register(priv->net_dev, base, q->nic);
4382 write_register(priv->net_dev, size, q->entries);
4383 write_register(priv->net_dev, r, q->oldest);
4384 write_register(priv->net_dev, w, q->next);
4385
4386 IPW_DEBUG_INFO("exit\n");
4387}
4388
4389static void ipw2100_kill_works(struct ipw2100_priv *priv)
4390{
4391 priv->stop_rf_kill = 1;
4392 priv->stop_hang_check = 1;
4393 cancel_delayed_work_sync(&priv->reset_work);
4394 cancel_delayed_work_sync(&priv->security_work);
4395 cancel_delayed_work_sync(&priv->wx_event_work);
4396 cancel_delayed_work_sync(&priv->hang_check);
4397 cancel_delayed_work_sync(&priv->rf_kill);
4398 cancel_delayed_work_sync(&priv->scan_event);
4399}
4400
4401static int ipw2100_tx_allocate(struct ipw2100_priv *priv)
4402{
4403 int i, j, err;
4404 void *v;
4405 dma_addr_t p;
4406
4407 IPW_DEBUG_INFO("enter\n");
4408
4409 err = bd_queue_allocate(priv, &priv->tx_queue, TX_QUEUE_LENGTH);
4410 if (err) {
4411 IPW_DEBUG_ERROR("%s: failed bd_queue_allocate\n",
4412 priv->net_dev->name);
4413 return err;
4414 }
4415
4416 priv->tx_buffers = kmalloc_array(TX_PENDED_QUEUE_LENGTH,
4417 sizeof(struct ipw2100_tx_packet),
4418 GFP_KERNEL);
4419 if (!priv->tx_buffers) {
4420 bd_queue_free(priv, &priv->tx_queue);
4421 return -ENOMEM;
4422 }
4423
4424 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4425 v = dma_alloc_coherent(&priv->pci_dev->dev,
4426 sizeof(struct ipw2100_data_header), &p,
4427 GFP_KERNEL);
4428 if (!v) {
4429 printk(KERN_ERR DRV_NAME
4430 ": %s: PCI alloc failed for tx " "buffers.\n",
4431 priv->net_dev->name);
4432 err = -ENOMEM;
4433 break;
4434 }
4435
4436 priv->tx_buffers[i].type = DATA;
4437 priv->tx_buffers[i].info.d_struct.data =
4438 (struct ipw2100_data_header *)v;
4439 priv->tx_buffers[i].info.d_struct.data_phys = p;
4440 priv->tx_buffers[i].info.d_struct.txb = NULL;
4441 }
4442
4443 if (i == TX_PENDED_QUEUE_LENGTH)
4444 return 0;
4445
4446 for (j = 0; j < i; j++) {
4447 dma_free_coherent(&priv->pci_dev->dev,
4448 sizeof(struct ipw2100_data_header),
4449 priv->tx_buffers[j].info.d_struct.data,
4450 priv->tx_buffers[j].info.d_struct.data_phys);
4451 }
4452
4453 kfree(priv->tx_buffers);
4454 priv->tx_buffers = NULL;
4455
4456 return err;
4457}
4458
4459static void ipw2100_tx_initialize(struct ipw2100_priv *priv)
4460{
4461 int i;
4462
4463 IPW_DEBUG_INFO("enter\n");
4464
4465 /*
4466 * reinitialize packet info lists
4467 */
4468 INIT_LIST_HEAD(&priv->fw_pend_list);
4469 INIT_STAT(&priv->fw_pend_stat);
4470
4471 /*
4472 * reinitialize lists
4473 */
4474 INIT_LIST_HEAD(&priv->tx_pend_list);
4475 INIT_LIST_HEAD(&priv->tx_free_list);
4476 INIT_STAT(&priv->tx_pend_stat);
4477 INIT_STAT(&priv->tx_free_stat);
4478
4479 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4480 /* We simply drop any SKBs that have been queued for
4481 * transmit */
4482 if (priv->tx_buffers[i].info.d_struct.txb) {
4483 libipw_txb_free(priv->tx_buffers[i].info.d_struct.
4484 txb);
4485 priv->tx_buffers[i].info.d_struct.txb = NULL;
4486 }
4487
4488 list_add_tail(&priv->tx_buffers[i].list, &priv->tx_free_list);
4489 }
4490
4491 SET_STAT(&priv->tx_free_stat, i);
4492
4493 priv->tx_queue.oldest = 0;
4494 priv->tx_queue.available = priv->tx_queue.entries;
4495 priv->tx_queue.next = 0;
4496 INIT_STAT(&priv->txq_stat);
4497 SET_STAT(&priv->txq_stat, priv->tx_queue.available);
4498
4499 bd_queue_initialize(priv, &priv->tx_queue,
4500 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_BASE,
4501 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_SIZE,
4502 IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
4503 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX);
4504
4505 IPW_DEBUG_INFO("exit\n");
4506
4507}
4508
4509static void ipw2100_tx_free(struct ipw2100_priv *priv)
4510{
4511 int i;
4512
4513 IPW_DEBUG_INFO("enter\n");
4514
4515 bd_queue_free(priv, &priv->tx_queue);
4516
4517 if (!priv->tx_buffers)
4518 return;
4519
4520 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4521 if (priv->tx_buffers[i].info.d_struct.txb) {
4522 libipw_txb_free(priv->tx_buffers[i].info.d_struct.
4523 txb);
4524 priv->tx_buffers[i].info.d_struct.txb = NULL;
4525 }
4526 if (priv->tx_buffers[i].info.d_struct.data)
4527 dma_free_coherent(&priv->pci_dev->dev,
4528 sizeof(struct ipw2100_data_header),
4529 priv->tx_buffers[i].info.d_struct.data,
4530 priv->tx_buffers[i].info.d_struct.data_phys);
4531 }
4532
4533 kfree(priv->tx_buffers);
4534 priv->tx_buffers = NULL;
4535
4536 IPW_DEBUG_INFO("exit\n");
4537}
4538
4539static int ipw2100_rx_allocate(struct ipw2100_priv *priv)
4540{
4541 int i, j, err = -EINVAL;
4542
4543 IPW_DEBUG_INFO("enter\n");
4544
4545 err = bd_queue_allocate(priv, &priv->rx_queue, RX_QUEUE_LENGTH);
4546 if (err) {
4547 IPW_DEBUG_INFO("failed bd_queue_allocate\n");
4548 return err;
4549 }
4550
4551 err = status_queue_allocate(priv, RX_QUEUE_LENGTH);
4552 if (err) {
4553 IPW_DEBUG_INFO("failed status_queue_allocate\n");
4554 bd_queue_free(priv, &priv->rx_queue);
4555 return err;
4556 }
4557
4558 /*
4559 * allocate packets
4560 */
4561 priv->rx_buffers = kmalloc_array(RX_QUEUE_LENGTH,
4562 sizeof(struct ipw2100_rx_packet),
4563 GFP_KERNEL);
4564 if (!priv->rx_buffers) {
4565 IPW_DEBUG_INFO("can't allocate rx packet buffer table\n");
4566
4567 bd_queue_free(priv, &priv->rx_queue);
4568
4569 status_queue_free(priv);
4570
4571 return -ENOMEM;
4572 }
4573
4574 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4575 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
4576
4577 err = ipw2100_alloc_skb(priv, packet);
4578 if (unlikely(err)) {
4579 err = -ENOMEM;
4580 break;
4581 }
4582
4583 /* The BD holds the cache aligned address */
4584 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
4585 priv->rx_queue.drv[i].buf_length = IPW_RX_NIC_BUFFER_LENGTH;
4586 priv->status_queue.drv[i].status_fields = 0;
4587 }
4588
4589 if (i == RX_QUEUE_LENGTH)
4590 return 0;
4591
4592 for (j = 0; j < i; j++) {
4593 dma_unmap_single(&priv->pci_dev->dev,
4594 priv->rx_buffers[j].dma_addr,
4595 sizeof(struct ipw2100_rx_packet),
4596 DMA_FROM_DEVICE);
4597 dev_kfree_skb(priv->rx_buffers[j].skb);
4598 }
4599
4600 kfree(priv->rx_buffers);
4601 priv->rx_buffers = NULL;
4602
4603 bd_queue_free(priv, &priv->rx_queue);
4604
4605 status_queue_free(priv);
4606
4607 return err;
4608}
4609
4610static void ipw2100_rx_initialize(struct ipw2100_priv *priv)
4611{
4612 IPW_DEBUG_INFO("enter\n");
4613
4614 priv->rx_queue.oldest = 0;
4615 priv->rx_queue.available = priv->rx_queue.entries - 1;
4616 priv->rx_queue.next = priv->rx_queue.entries - 1;
4617
4618 INIT_STAT(&priv->rxq_stat);
4619 SET_STAT(&priv->rxq_stat, priv->rx_queue.available);
4620
4621 bd_queue_initialize(priv, &priv->rx_queue,
4622 IPW_MEM_HOST_SHARED_RX_BD_BASE,
4623 IPW_MEM_HOST_SHARED_RX_BD_SIZE,
4624 IPW_MEM_HOST_SHARED_RX_READ_INDEX,
4625 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX);
4626
4627 /* set up the status queue */
4628 write_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_STATUS_BASE,
4629 priv->status_queue.nic);
4630
4631 IPW_DEBUG_INFO("exit\n");
4632}
4633
4634static void ipw2100_rx_free(struct ipw2100_priv *priv)
4635{
4636 int i;
4637
4638 IPW_DEBUG_INFO("enter\n");
4639
4640 bd_queue_free(priv, &priv->rx_queue);
4641 status_queue_free(priv);
4642
4643 if (!priv->rx_buffers)
4644 return;
4645
4646 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4647 if (priv->rx_buffers[i].rxp) {
4648 dma_unmap_single(&priv->pci_dev->dev,
4649 priv->rx_buffers[i].dma_addr,
4650 sizeof(struct ipw2100_rx),
4651 DMA_FROM_DEVICE);
4652 dev_kfree_skb(priv->rx_buffers[i].skb);
4653 }
4654 }
4655
4656 kfree(priv->rx_buffers);
4657 priv->rx_buffers = NULL;
4658
4659 IPW_DEBUG_INFO("exit\n");
4660}
4661
4662static int ipw2100_read_mac_address(struct ipw2100_priv *priv)
4663{
4664 u32 length = ETH_ALEN;
4665 u8 addr[ETH_ALEN];
4666
4667 int err;
4668
4669 err = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ADAPTER_MAC, addr, &length);
4670 if (err) {
4671 IPW_DEBUG_INFO("MAC address read failed\n");
4672 return -EIO;
4673 }
4674
4675 eth_hw_addr_set(priv->net_dev, addr);
4676 IPW_DEBUG_INFO("card MAC is %pM\n", priv->net_dev->dev_addr);
4677
4678 return 0;
4679}
4680
4681/********************************************************************
4682 *
4683 * Firmware Commands
4684 *
4685 ********************************************************************/
4686
4687static int ipw2100_set_mac_address(struct ipw2100_priv *priv, int batch_mode)
4688{
4689 struct host_command cmd = {
4690 .host_command = ADAPTER_ADDRESS,
4691 .host_command_sequence = 0,
4692 .host_command_length = ETH_ALEN
4693 };
4694 int err;
4695
4696 IPW_DEBUG_HC("SET_MAC_ADDRESS\n");
4697
4698 IPW_DEBUG_INFO("enter\n");
4699
4700 if (priv->config & CFG_CUSTOM_MAC) {
4701 memcpy(cmd.host_command_parameters, priv->mac_addr, ETH_ALEN);
4702 eth_hw_addr_set(priv->net_dev, priv->mac_addr);
4703 } else
4704 memcpy(cmd.host_command_parameters, priv->net_dev->dev_addr,
4705 ETH_ALEN);
4706
4707 err = ipw2100_hw_send_command(priv, &cmd);
4708
4709 IPW_DEBUG_INFO("exit\n");
4710 return err;
4711}
4712
4713static int ipw2100_set_port_type(struct ipw2100_priv *priv, u32 port_type,
4714 int batch_mode)
4715{
4716 struct host_command cmd = {
4717 .host_command = PORT_TYPE,
4718 .host_command_sequence = 0,
4719 .host_command_length = sizeof(u32)
4720 };
4721 int err;
4722
4723 switch (port_type) {
4724 case IW_MODE_INFRA:
4725 cmd.host_command_parameters[0] = IPW_BSS;
4726 break;
4727 case IW_MODE_ADHOC:
4728 cmd.host_command_parameters[0] = IPW_IBSS;
4729 break;
4730 }
4731
4732 IPW_DEBUG_HC("PORT_TYPE: %s\n",
4733 port_type == IPW_IBSS ? "Ad-Hoc" : "Managed");
4734
4735 if (!batch_mode) {
4736 err = ipw2100_disable_adapter(priv);
4737 if (err) {
4738 printk(KERN_ERR DRV_NAME
4739 ": %s: Could not disable adapter %d\n",
4740 priv->net_dev->name, err);
4741 return err;
4742 }
4743 }
4744
4745 /* send cmd to firmware */
4746 err = ipw2100_hw_send_command(priv, &cmd);
4747
4748 if (!batch_mode)
4749 ipw2100_enable_adapter(priv);
4750
4751 return err;
4752}
4753
4754static int ipw2100_set_channel(struct ipw2100_priv *priv, u32 channel,
4755 int batch_mode)
4756{
4757 struct host_command cmd = {
4758 .host_command = CHANNEL,
4759 .host_command_sequence = 0,
4760 .host_command_length = sizeof(u32)
4761 };
4762 int err;
4763
4764 cmd.host_command_parameters[0] = channel;
4765
4766 IPW_DEBUG_HC("CHANNEL: %d\n", channel);
4767
4768 /* If BSS then we don't support channel selection */
4769 if (priv->ieee->iw_mode == IW_MODE_INFRA)
4770 return 0;
4771
4772 if ((channel != 0) &&
4773 ((channel < REG_MIN_CHANNEL) || (channel > REG_MAX_CHANNEL)))
4774 return -EINVAL;
4775
4776 if (!batch_mode) {
4777 err = ipw2100_disable_adapter(priv);
4778 if (err)
4779 return err;
4780 }
4781
4782 err = ipw2100_hw_send_command(priv, &cmd);
4783 if (err) {
4784 IPW_DEBUG_INFO("Failed to set channel to %d", channel);
4785 return err;
4786 }
4787
4788 if (channel)
4789 priv->config |= CFG_STATIC_CHANNEL;
4790 else
4791 priv->config &= ~CFG_STATIC_CHANNEL;
4792
4793 priv->channel = channel;
4794
4795 if (!batch_mode) {
4796 err = ipw2100_enable_adapter(priv);
4797 if (err)
4798 return err;
4799 }
4800
4801 return 0;
4802}
4803
4804static int ipw2100_system_config(struct ipw2100_priv *priv, int batch_mode)
4805{
4806 struct host_command cmd = {
4807 .host_command = SYSTEM_CONFIG,
4808 .host_command_sequence = 0,
4809 .host_command_length = 12,
4810 };
4811 u32 ibss_mask, len = sizeof(u32);
4812 int err;
4813
4814 /* Set system configuration */
4815
4816 if (!batch_mode) {
4817 err = ipw2100_disable_adapter(priv);
4818 if (err)
4819 return err;
4820 }
4821
4822 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
4823 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_AUTO_START;
4824
4825 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_MASK |
4826 IPW_CFG_BSS_MASK | IPW_CFG_802_1x_ENABLE;
4827
4828 if (!(priv->config & CFG_LONG_PREAMBLE))
4829 cmd.host_command_parameters[0] |= IPW_CFG_PREAMBLE_AUTO;
4830
4831 err = ipw2100_get_ordinal(priv,
4832 IPW_ORD_EEPROM_IBSS_11B_CHANNELS,
4833 &ibss_mask, &len);
4834 if (err)
4835 ibss_mask = IPW_IBSS_11B_DEFAULT_MASK;
4836
4837 cmd.host_command_parameters[1] = REG_CHANNEL_MASK;
4838 cmd.host_command_parameters[2] = REG_CHANNEL_MASK & ibss_mask;
4839
4840 /* 11b only */
4841 /*cmd.host_command_parameters[0] |= DIVERSITY_ANTENNA_A; */
4842
4843 err = ipw2100_hw_send_command(priv, &cmd);
4844 if (err)
4845 return err;
4846
4847/* If IPv6 is configured in the kernel then we don't want to filter out all
4848 * of the multicast packets as IPv6 needs some. */
4849#if !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
4850 cmd.host_command = ADD_MULTICAST;
4851 cmd.host_command_sequence = 0;
4852 cmd.host_command_length = 0;
4853
4854 ipw2100_hw_send_command(priv, &cmd);
4855#endif
4856 if (!batch_mode) {
4857 err = ipw2100_enable_adapter(priv);
4858 if (err)
4859 return err;
4860 }
4861
4862 return 0;
4863}
4864
4865static int ipw2100_set_tx_rates(struct ipw2100_priv *priv, u32 rate,
4866 int batch_mode)
4867{
4868 struct host_command cmd = {
4869 .host_command = BASIC_TX_RATES,
4870 .host_command_sequence = 0,
4871 .host_command_length = 4
4872 };
4873 int err;
4874
4875 cmd.host_command_parameters[0] = rate & TX_RATE_MASK;
4876
4877 if (!batch_mode) {
4878 err = ipw2100_disable_adapter(priv);
4879 if (err)
4880 return err;
4881 }
4882
4883 /* Set BASIC TX Rate first */
4884 ipw2100_hw_send_command(priv, &cmd);
4885
4886 /* Set TX Rate */
4887 cmd.host_command = TX_RATES;
4888 ipw2100_hw_send_command(priv, &cmd);
4889
4890 /* Set MSDU TX Rate */
4891 cmd.host_command = MSDU_TX_RATES;
4892 ipw2100_hw_send_command(priv, &cmd);
4893
4894 if (!batch_mode) {
4895 err = ipw2100_enable_adapter(priv);
4896 if (err)
4897 return err;
4898 }
4899
4900 priv->tx_rates = rate;
4901
4902 return 0;
4903}
4904
4905static int ipw2100_set_power_mode(struct ipw2100_priv *priv, int power_level)
4906{
4907 struct host_command cmd = {
4908 .host_command = POWER_MODE,
4909 .host_command_sequence = 0,
4910 .host_command_length = 4
4911 };
4912 int err;
4913
4914 cmd.host_command_parameters[0] = power_level;
4915
4916 err = ipw2100_hw_send_command(priv, &cmd);
4917 if (err)
4918 return err;
4919
4920 if (power_level == IPW_POWER_MODE_CAM)
4921 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
4922 else
4923 priv->power_mode = IPW_POWER_ENABLED | power_level;
4924
4925#ifdef IPW2100_TX_POWER
4926 if (priv->port_type == IBSS && priv->adhoc_power != DFTL_IBSS_TX_POWER) {
4927 /* Set beacon interval */
4928 cmd.host_command = TX_POWER_INDEX;
4929 cmd.host_command_parameters[0] = (u32) priv->adhoc_power;
4930
4931 err = ipw2100_hw_send_command(priv, &cmd);
4932 if (err)
4933 return err;
4934 }
4935#endif
4936
4937 return 0;
4938}
4939
4940static int ipw2100_set_rts_threshold(struct ipw2100_priv *priv, u32 threshold)
4941{
4942 struct host_command cmd = {
4943 .host_command = RTS_THRESHOLD,
4944 .host_command_sequence = 0,
4945 .host_command_length = 4
4946 };
4947 int err;
4948
4949 if (threshold & RTS_DISABLED)
4950 cmd.host_command_parameters[0] = MAX_RTS_THRESHOLD;
4951 else
4952 cmd.host_command_parameters[0] = threshold & ~RTS_DISABLED;
4953
4954 err = ipw2100_hw_send_command(priv, &cmd);
4955 if (err)
4956 return err;
4957
4958 priv->rts_threshold = threshold;
4959
4960 return 0;
4961}
4962
4963#if 0
4964int ipw2100_set_fragmentation_threshold(struct ipw2100_priv *priv,
4965 u32 threshold, int batch_mode)
4966{
4967 struct host_command cmd = {
4968 .host_command = FRAG_THRESHOLD,
4969 .host_command_sequence = 0,
4970 .host_command_length = 4,
4971 .host_command_parameters[0] = 0,
4972 };
4973 int err;
4974
4975 if (!batch_mode) {
4976 err = ipw2100_disable_adapter(priv);
4977 if (err)
4978 return err;
4979 }
4980
4981 if (threshold == 0)
4982 threshold = DEFAULT_FRAG_THRESHOLD;
4983 else {
4984 threshold = max(threshold, MIN_FRAG_THRESHOLD);
4985 threshold = min(threshold, MAX_FRAG_THRESHOLD);
4986 }
4987
4988 cmd.host_command_parameters[0] = threshold;
4989
4990 IPW_DEBUG_HC("FRAG_THRESHOLD: %u\n", threshold);
4991
4992 err = ipw2100_hw_send_command(priv, &cmd);
4993
4994 if (!batch_mode)
4995 ipw2100_enable_adapter(priv);
4996
4997 if (!err)
4998 priv->frag_threshold = threshold;
4999
5000 return err;
5001}
5002#endif
5003
5004static int ipw2100_set_short_retry(struct ipw2100_priv *priv, u32 retry)
5005{
5006 struct host_command cmd = {
5007 .host_command = SHORT_RETRY_LIMIT,
5008 .host_command_sequence = 0,
5009 .host_command_length = 4
5010 };
5011 int err;
5012
5013 cmd.host_command_parameters[0] = retry;
5014
5015 err = ipw2100_hw_send_command(priv, &cmd);
5016 if (err)
5017 return err;
5018
5019 priv->short_retry_limit = retry;
5020
5021 return 0;
5022}
5023
5024static int ipw2100_set_long_retry(struct ipw2100_priv *priv, u32 retry)
5025{
5026 struct host_command cmd = {
5027 .host_command = LONG_RETRY_LIMIT,
5028 .host_command_sequence = 0,
5029 .host_command_length = 4
5030 };
5031 int err;
5032
5033 cmd.host_command_parameters[0] = retry;
5034
5035 err = ipw2100_hw_send_command(priv, &cmd);
5036 if (err)
5037 return err;
5038
5039 priv->long_retry_limit = retry;
5040
5041 return 0;
5042}
5043
5044static int ipw2100_set_mandatory_bssid(struct ipw2100_priv *priv, u8 * bssid,
5045 int batch_mode)
5046{
5047 struct host_command cmd = {
5048 .host_command = MANDATORY_BSSID,
5049 .host_command_sequence = 0,
5050 .host_command_length = (bssid == NULL) ? 0 : ETH_ALEN
5051 };
5052 int err;
5053
5054#ifdef CONFIG_IPW2100_DEBUG
5055 if (bssid != NULL)
5056 IPW_DEBUG_HC("MANDATORY_BSSID: %pM\n", bssid);
5057 else
5058 IPW_DEBUG_HC("MANDATORY_BSSID: <clear>\n");
5059#endif
5060 /* if BSSID is empty then we disable mandatory bssid mode */
5061 if (bssid != NULL)
5062 memcpy(cmd.host_command_parameters, bssid, ETH_ALEN);
5063
5064 if (!batch_mode) {
5065 err = ipw2100_disable_adapter(priv);
5066 if (err)
5067 return err;
5068 }
5069
5070 err = ipw2100_hw_send_command(priv, &cmd);
5071
5072 if (!batch_mode)
5073 ipw2100_enable_adapter(priv);
5074
5075 return err;
5076}
5077
5078static int ipw2100_disassociate_bssid(struct ipw2100_priv *priv)
5079{
5080 struct host_command cmd = {
5081 .host_command = DISASSOCIATION_BSSID,
5082 .host_command_sequence = 0,
5083 .host_command_length = ETH_ALEN
5084 };
5085 int err;
5086
5087 IPW_DEBUG_HC("DISASSOCIATION_BSSID\n");
5088
5089 /* The Firmware currently ignores the BSSID and just disassociates from
5090 * the currently associated AP -- but in the off chance that a future
5091 * firmware does use the BSSID provided here, we go ahead and try and
5092 * set it to the currently associated AP's BSSID */
5093 memcpy(cmd.host_command_parameters, priv->bssid, ETH_ALEN);
5094
5095 err = ipw2100_hw_send_command(priv, &cmd);
5096
5097 return err;
5098}
5099
5100static int ipw2100_set_wpa_ie(struct ipw2100_priv *,
5101 struct ipw2100_wpa_assoc_frame *, int)
5102 __attribute__ ((unused));
5103
5104static int ipw2100_set_wpa_ie(struct ipw2100_priv *priv,
5105 struct ipw2100_wpa_assoc_frame *wpa_frame,
5106 int batch_mode)
5107{
5108 struct host_command cmd = {
5109 .host_command = SET_WPA_IE,
5110 .host_command_sequence = 0,
5111 .host_command_length = sizeof(struct ipw2100_wpa_assoc_frame),
5112 };
5113 int err;
5114
5115 IPW_DEBUG_HC("SET_WPA_IE\n");
5116
5117 if (!batch_mode) {
5118 err = ipw2100_disable_adapter(priv);
5119 if (err)
5120 return err;
5121 }
5122
5123 memcpy(cmd.host_command_parameters, wpa_frame,
5124 sizeof(struct ipw2100_wpa_assoc_frame));
5125
5126 err = ipw2100_hw_send_command(priv, &cmd);
5127
5128 if (!batch_mode) {
5129 if (ipw2100_enable_adapter(priv))
5130 err = -EIO;
5131 }
5132
5133 return err;
5134}
5135
5136struct security_info_params {
5137 u32 allowed_ciphers;
5138 u16 version;
5139 u8 auth_mode;
5140 u8 replay_counters_number;
5141 u8 unicast_using_group;
5142} __packed;
5143
5144static int ipw2100_set_security_information(struct ipw2100_priv *priv,
5145 int auth_mode,
5146 int security_level,
5147 int unicast_using_group,
5148 int batch_mode)
5149{
5150 struct host_command cmd = {
5151 .host_command = SET_SECURITY_INFORMATION,
5152 .host_command_sequence = 0,
5153 .host_command_length = sizeof(struct security_info_params)
5154 };
5155 struct security_info_params *security =
5156 (struct security_info_params *)&cmd.host_command_parameters;
5157 int err;
5158 memset(security, 0, sizeof(*security));
5159
5160 /* If shared key AP authentication is turned on, then we need to
5161 * configure the firmware to try and use it.
5162 *
5163 * Actual data encryption/decryption is handled by the host. */
5164 security->auth_mode = auth_mode;
5165 security->unicast_using_group = unicast_using_group;
5166
5167 switch (security_level) {
5168 default:
5169 case SEC_LEVEL_0:
5170 security->allowed_ciphers = IPW_NONE_CIPHER;
5171 break;
5172 case SEC_LEVEL_1:
5173 security->allowed_ciphers = IPW_WEP40_CIPHER |
5174 IPW_WEP104_CIPHER;
5175 break;
5176 case SEC_LEVEL_2:
5177 security->allowed_ciphers = IPW_WEP40_CIPHER |
5178 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER;
5179 break;
5180 case SEC_LEVEL_2_CKIP:
5181 security->allowed_ciphers = IPW_WEP40_CIPHER |
5182 IPW_WEP104_CIPHER | IPW_CKIP_CIPHER;
5183 break;
5184 case SEC_LEVEL_3:
5185 security->allowed_ciphers = IPW_WEP40_CIPHER |
5186 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER | IPW_CCMP_CIPHER;
5187 break;
5188 }
5189
5190 IPW_DEBUG_HC
5191 ("SET_SECURITY_INFORMATION: auth:%d cipher:0x%02X (level %d)\n",
5192 security->auth_mode, security->allowed_ciphers, security_level);
5193
5194 security->replay_counters_number = 0;
5195
5196 if (!batch_mode) {
5197 err = ipw2100_disable_adapter(priv);
5198 if (err)
5199 return err;
5200 }
5201
5202 err = ipw2100_hw_send_command(priv, &cmd);
5203
5204 if (!batch_mode)
5205 ipw2100_enable_adapter(priv);
5206
5207 return err;
5208}
5209
5210static int ipw2100_set_tx_power(struct ipw2100_priv *priv, u32 tx_power)
5211{
5212 struct host_command cmd = {
5213 .host_command = TX_POWER_INDEX,
5214 .host_command_sequence = 0,
5215 .host_command_length = 4
5216 };
5217 int err = 0;
5218 u32 tmp = tx_power;
5219
5220 if (tx_power != IPW_TX_POWER_DEFAULT)
5221 tmp = (tx_power - IPW_TX_POWER_MIN_DBM) * 16 /
5222 (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM);
5223
5224 cmd.host_command_parameters[0] = tmp;
5225
5226 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
5227 err = ipw2100_hw_send_command(priv, &cmd);
5228 if (!err)
5229 priv->tx_power = tx_power;
5230
5231 return 0;
5232}
5233
5234static int ipw2100_set_ibss_beacon_interval(struct ipw2100_priv *priv,
5235 u32 interval, int batch_mode)
5236{
5237 struct host_command cmd = {
5238 .host_command = BEACON_INTERVAL,
5239 .host_command_sequence = 0,
5240 .host_command_length = 4
5241 };
5242 int err;
5243
5244 cmd.host_command_parameters[0] = interval;
5245
5246 IPW_DEBUG_INFO("enter\n");
5247
5248 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5249 if (!batch_mode) {
5250 err = ipw2100_disable_adapter(priv);
5251 if (err)
5252 return err;
5253 }
5254
5255 ipw2100_hw_send_command(priv, &cmd);
5256
5257 if (!batch_mode) {
5258 err = ipw2100_enable_adapter(priv);
5259 if (err)
5260 return err;
5261 }
5262 }
5263
5264 IPW_DEBUG_INFO("exit\n");
5265
5266 return 0;
5267}
5268
5269static void ipw2100_queues_initialize(struct ipw2100_priv *priv)
5270{
5271 ipw2100_tx_initialize(priv);
5272 ipw2100_rx_initialize(priv);
5273 ipw2100_msg_initialize(priv);
5274}
5275
5276static void ipw2100_queues_free(struct ipw2100_priv *priv)
5277{
5278 ipw2100_tx_free(priv);
5279 ipw2100_rx_free(priv);
5280 ipw2100_msg_free(priv);
5281}
5282
5283static int ipw2100_queues_allocate(struct ipw2100_priv *priv)
5284{
5285 if (ipw2100_tx_allocate(priv) ||
5286 ipw2100_rx_allocate(priv) || ipw2100_msg_allocate(priv))
5287 goto fail;
5288
5289 return 0;
5290
5291 fail:
5292 ipw2100_tx_free(priv);
5293 ipw2100_rx_free(priv);
5294 ipw2100_msg_free(priv);
5295 return -ENOMEM;
5296}
5297
5298#define IPW_PRIVACY_CAPABLE 0x0008
5299
5300static int ipw2100_set_wep_flags(struct ipw2100_priv *priv, u32 flags,
5301 int batch_mode)
5302{
5303 struct host_command cmd = {
5304 .host_command = WEP_FLAGS,
5305 .host_command_sequence = 0,
5306 .host_command_length = 4
5307 };
5308 int err;
5309
5310 cmd.host_command_parameters[0] = flags;
5311
5312 IPW_DEBUG_HC("WEP_FLAGS: flags = 0x%08X\n", flags);
5313
5314 if (!batch_mode) {
5315 err = ipw2100_disable_adapter(priv);
5316 if (err) {
5317 printk(KERN_ERR DRV_NAME
5318 ": %s: Could not disable adapter %d\n",
5319 priv->net_dev->name, err);
5320 return err;
5321 }
5322 }
5323
5324 /* send cmd to firmware */
5325 err = ipw2100_hw_send_command(priv, &cmd);
5326
5327 if (!batch_mode)
5328 ipw2100_enable_adapter(priv);
5329
5330 return err;
5331}
5332
5333struct ipw2100_wep_key {
5334 u8 idx;
5335 u8 len;
5336 u8 key[13];
5337};
5338
5339/* Macros to ease up priting WEP keys */
5340#define WEP_FMT_64 "%02X%02X%02X%02X-%02X"
5341#define WEP_FMT_128 "%02X%02X%02X%02X-%02X%02X%02X%02X-%02X%02X%02X"
5342#define WEP_STR_64(x) x[0],x[1],x[2],x[3],x[4]
5343#define WEP_STR_128(x) x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7],x[8],x[9],x[10]
5344
5345/**
5346 * ipw2100_set_key() - Set a the wep key
5347 *
5348 * @priv: struct to work on
5349 * @idx: index of the key we want to set
5350 * @key: ptr to the key data to set
5351 * @len: length of the buffer at @key
5352 * @batch_mode: FIXME perform the operation in batch mode, not
5353 * disabling the device.
5354 *
5355 * @returns 0 if OK, < 0 errno code on error.
5356 *
5357 * Fill out a command structure with the new wep key, length an
5358 * index and send it down the wire.
5359 */
5360static int ipw2100_set_key(struct ipw2100_priv *priv,
5361 int idx, char *key, int len, int batch_mode)
5362{
5363 int keylen = len ? (len <= 5 ? 5 : 13) : 0;
5364 struct host_command cmd = {
5365 .host_command = WEP_KEY_INFO,
5366 .host_command_sequence = 0,
5367 .host_command_length = sizeof(struct ipw2100_wep_key),
5368 };
5369 struct ipw2100_wep_key *wep_key = (void *)cmd.host_command_parameters;
5370 int err;
5371
5372 IPW_DEBUG_HC("WEP_KEY_INFO: index = %d, len = %d/%d\n",
5373 idx, keylen, len);
5374
5375 /* NOTE: We don't check cached values in case the firmware was reset
5376 * or some other problem is occurring. If the user is setting the key,
5377 * then we push the change */
5378
5379 wep_key->idx = idx;
5380 wep_key->len = keylen;
5381
5382 if (keylen) {
5383 memcpy(wep_key->key, key, len);
5384 memset(wep_key->key + len, 0, keylen - len);
5385 }
5386
5387 /* Will be optimized out on debug not being configured in */
5388 if (keylen == 0)
5389 IPW_DEBUG_WEP("%s: Clearing key %d\n",
5390 priv->net_dev->name, wep_key->idx);
5391 else if (keylen == 5)
5392 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_64 "\n",
5393 priv->net_dev->name, wep_key->idx, wep_key->len,
5394 WEP_STR_64(wep_key->key));
5395 else
5396 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_128
5397 "\n",
5398 priv->net_dev->name, wep_key->idx, wep_key->len,
5399 WEP_STR_128(wep_key->key));
5400
5401 if (!batch_mode) {
5402 err = ipw2100_disable_adapter(priv);
5403 /* FIXME: IPG: shouldn't this prink be in _disable_adapter()? */
5404 if (err) {
5405 printk(KERN_ERR DRV_NAME
5406 ": %s: Could not disable adapter %d\n",
5407 priv->net_dev->name, err);
5408 return err;
5409 }
5410 }
5411
5412 /* send cmd to firmware */
5413 err = ipw2100_hw_send_command(priv, &cmd);
5414
5415 if (!batch_mode) {
5416 int err2 = ipw2100_enable_adapter(priv);
5417 if (err == 0)
5418 err = err2;
5419 }
5420 return err;
5421}
5422
5423static int ipw2100_set_key_index(struct ipw2100_priv *priv,
5424 int idx, int batch_mode)
5425{
5426 struct host_command cmd = {
5427 .host_command = WEP_KEY_INDEX,
5428 .host_command_sequence = 0,
5429 .host_command_length = 4,
5430 .host_command_parameters = {idx},
5431 };
5432 int err;
5433
5434 IPW_DEBUG_HC("WEP_KEY_INDEX: index = %d\n", idx);
5435
5436 if (idx < 0 || idx > 3)
5437 return -EINVAL;
5438
5439 if (!batch_mode) {
5440 err = ipw2100_disable_adapter(priv);
5441 if (err) {
5442 printk(KERN_ERR DRV_NAME
5443 ": %s: Could not disable adapter %d\n",
5444 priv->net_dev->name, err);
5445 return err;
5446 }
5447 }
5448
5449 /* send cmd to firmware */
5450 err = ipw2100_hw_send_command(priv, &cmd);
5451
5452 if (!batch_mode)
5453 ipw2100_enable_adapter(priv);
5454
5455 return err;
5456}
5457
5458static int ipw2100_configure_security(struct ipw2100_priv *priv, int batch_mode)
5459{
5460 int i, err, auth_mode, sec_level, use_group;
5461
5462 if (!(priv->status & STATUS_RUNNING))
5463 return 0;
5464
5465 if (!batch_mode) {
5466 err = ipw2100_disable_adapter(priv);
5467 if (err)
5468 return err;
5469 }
5470
5471 if (!priv->ieee->sec.enabled) {
5472 err =
5473 ipw2100_set_security_information(priv, IPW_AUTH_OPEN,
5474 SEC_LEVEL_0, 0, 1);
5475 } else {
5476 auth_mode = IPW_AUTH_OPEN;
5477 if (priv->ieee->sec.flags & SEC_AUTH_MODE) {
5478 if (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY)
5479 auth_mode = IPW_AUTH_SHARED;
5480 else if (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP)
5481 auth_mode = IPW_AUTH_LEAP_CISCO_ID;
5482 }
5483
5484 sec_level = SEC_LEVEL_0;
5485 if (priv->ieee->sec.flags & SEC_LEVEL)
5486 sec_level = priv->ieee->sec.level;
5487
5488 use_group = 0;
5489 if (priv->ieee->sec.flags & SEC_UNICAST_GROUP)
5490 use_group = priv->ieee->sec.unicast_uses_group;
5491
5492 err =
5493 ipw2100_set_security_information(priv, auth_mode, sec_level,
5494 use_group, 1);
5495 }
5496
5497 if (err)
5498 goto exit;
5499
5500 if (priv->ieee->sec.enabled) {
5501 for (i = 0; i < 4; i++) {
5502 if (!(priv->ieee->sec.flags & (1 << i))) {
5503 memset(priv->ieee->sec.keys[i], 0, WEP_KEY_LEN);
5504 priv->ieee->sec.key_sizes[i] = 0;
5505 } else {
5506 err = ipw2100_set_key(priv, i,
5507 priv->ieee->sec.keys[i],
5508 priv->ieee->sec.
5509 key_sizes[i], 1);
5510 if (err)
5511 goto exit;
5512 }
5513 }
5514
5515 ipw2100_set_key_index(priv, priv->ieee->crypt_info.tx_keyidx, 1);
5516 }
5517
5518 /* Always enable privacy so the Host can filter WEP packets if
5519 * encrypted data is sent up */
5520 err =
5521 ipw2100_set_wep_flags(priv,
5522 priv->ieee->sec.
5523 enabled ? IPW_PRIVACY_CAPABLE : 0, 1);
5524 if (err)
5525 goto exit;
5526
5527 priv->status &= ~STATUS_SECURITY_UPDATED;
5528
5529 exit:
5530 if (!batch_mode)
5531 ipw2100_enable_adapter(priv);
5532
5533 return err;
5534}
5535
5536static void ipw2100_security_work(struct work_struct *work)
5537{
5538 struct ipw2100_priv *priv =
5539 container_of(work, struct ipw2100_priv, security_work.work);
5540
5541 /* If we happen to have reconnected before we get a chance to
5542 * process this, then update the security settings--which causes
5543 * a disassociation to occur */
5544 if (!(priv->status & STATUS_ASSOCIATED) &&
5545 priv->status & STATUS_SECURITY_UPDATED)
5546 ipw2100_configure_security(priv, 0);
5547}
5548
5549static void shim__set_security(struct net_device *dev,
5550 struct libipw_security *sec)
5551{
5552 struct ipw2100_priv *priv = libipw_priv(dev);
5553 int i;
5554
5555 mutex_lock(&priv->action_mutex);
5556 if (!(priv->status & STATUS_INITIALIZED))
5557 goto done;
5558
5559 for (i = 0; i < 4; i++) {
5560 if (sec->flags & (1 << i)) {
5561 priv->ieee->sec.key_sizes[i] = sec->key_sizes[i];
5562 if (sec->key_sizes[i] == 0)
5563 priv->ieee->sec.flags &= ~(1 << i);
5564 else
5565 memcpy(priv->ieee->sec.keys[i], sec->keys[i],
5566 sec->key_sizes[i]);
5567 if (sec->level == SEC_LEVEL_1) {
5568 priv->ieee->sec.flags |= (1 << i);
5569 priv->status |= STATUS_SECURITY_UPDATED;
5570 } else
5571 priv->ieee->sec.flags &= ~(1 << i);
5572 }
5573 }
5574
5575 if ((sec->flags & SEC_ACTIVE_KEY) &&
5576 priv->ieee->sec.active_key != sec->active_key) {
5577 priv->ieee->sec.active_key = sec->active_key;
5578 priv->ieee->sec.flags |= SEC_ACTIVE_KEY;
5579 priv->status |= STATUS_SECURITY_UPDATED;
5580 }
5581
5582 if ((sec->flags & SEC_AUTH_MODE) &&
5583 (priv->ieee->sec.auth_mode != sec->auth_mode)) {
5584 priv->ieee->sec.auth_mode = sec->auth_mode;
5585 priv->ieee->sec.flags |= SEC_AUTH_MODE;
5586 priv->status |= STATUS_SECURITY_UPDATED;
5587 }
5588
5589 if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) {
5590 priv->ieee->sec.flags |= SEC_ENABLED;
5591 priv->ieee->sec.enabled = sec->enabled;
5592 priv->status |= STATUS_SECURITY_UPDATED;
5593 }
5594
5595 if (sec->flags & SEC_ENCRYPT)
5596 priv->ieee->sec.encrypt = sec->encrypt;
5597
5598 if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) {
5599 priv->ieee->sec.level = sec->level;
5600 priv->ieee->sec.flags |= SEC_LEVEL;
5601 priv->status |= STATUS_SECURITY_UPDATED;
5602 }
5603
5604 IPW_DEBUG_WEP("Security flags: %c %c%c%c%c %c%c%c%c\n",
5605 priv->ieee->sec.flags & (1 << 8) ? '1' : '0',
5606 priv->ieee->sec.flags & (1 << 7) ? '1' : '0',
5607 priv->ieee->sec.flags & (1 << 6) ? '1' : '0',
5608 priv->ieee->sec.flags & (1 << 5) ? '1' : '0',
5609 priv->ieee->sec.flags & (1 << 4) ? '1' : '0',
5610 priv->ieee->sec.flags & (1 << 3) ? '1' : '0',
5611 priv->ieee->sec.flags & (1 << 2) ? '1' : '0',
5612 priv->ieee->sec.flags & (1 << 1) ? '1' : '0',
5613 priv->ieee->sec.flags & (1 << 0) ? '1' : '0');
5614
5615/* As a temporary work around to enable WPA until we figure out why
5616 * wpa_supplicant toggles the security capability of the driver, which
5617 * forces a disassociation with force_update...
5618 *
5619 * if (force_update || !(priv->status & STATUS_ASSOCIATED))*/
5620 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
5621 ipw2100_configure_security(priv, 0);
5622 done:
5623 mutex_unlock(&priv->action_mutex);
5624}
5625
5626static int ipw2100_adapter_setup(struct ipw2100_priv *priv)
5627{
5628 int err;
5629 int batch_mode = 1;
5630 u8 *bssid;
5631
5632 IPW_DEBUG_INFO("enter\n");
5633
5634 err = ipw2100_disable_adapter(priv);
5635 if (err)
5636 return err;
5637#ifdef CONFIG_IPW2100_MONITOR
5638 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
5639 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5640 if (err)
5641 return err;
5642
5643 IPW_DEBUG_INFO("exit\n");
5644
5645 return 0;
5646 }
5647#endif /* CONFIG_IPW2100_MONITOR */
5648
5649 err = ipw2100_read_mac_address(priv);
5650 if (err)
5651 return -EIO;
5652
5653 err = ipw2100_set_mac_address(priv, batch_mode);
5654 if (err)
5655 return err;
5656
5657 err = ipw2100_set_port_type(priv, priv->ieee->iw_mode, batch_mode);
5658 if (err)
5659 return err;
5660
5661 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5662 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5663 if (err)
5664 return err;
5665 }
5666
5667 err = ipw2100_system_config(priv, batch_mode);
5668 if (err)
5669 return err;
5670
5671 err = ipw2100_set_tx_rates(priv, priv->tx_rates, batch_mode);
5672 if (err)
5673 return err;
5674
5675 /* Default to power mode OFF */
5676 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
5677 if (err)
5678 return err;
5679
5680 err = ipw2100_set_rts_threshold(priv, priv->rts_threshold);
5681 if (err)
5682 return err;
5683
5684 if (priv->config & CFG_STATIC_BSSID)
5685 bssid = priv->bssid;
5686 else
5687 bssid = NULL;
5688 err = ipw2100_set_mandatory_bssid(priv, bssid, batch_mode);
5689 if (err)
5690 return err;
5691
5692 if (priv->config & CFG_STATIC_ESSID)
5693 err = ipw2100_set_essid(priv, priv->essid, priv->essid_len,
5694 batch_mode);
5695 else
5696 err = ipw2100_set_essid(priv, NULL, 0, batch_mode);
5697 if (err)
5698 return err;
5699
5700 err = ipw2100_configure_security(priv, batch_mode);
5701 if (err)
5702 return err;
5703
5704 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5705 err =
5706 ipw2100_set_ibss_beacon_interval(priv,
5707 priv->beacon_interval,
5708 batch_mode);
5709 if (err)
5710 return err;
5711
5712 err = ipw2100_set_tx_power(priv, priv->tx_power);
5713 if (err)
5714 return err;
5715 }
5716
5717 /*
5718 err = ipw2100_set_fragmentation_threshold(
5719 priv, priv->frag_threshold, batch_mode);
5720 if (err)
5721 return err;
5722 */
5723
5724 IPW_DEBUG_INFO("exit\n");
5725
5726 return 0;
5727}
5728
5729/*************************************************************************
5730 *
5731 * EXTERNALLY CALLED METHODS
5732 *
5733 *************************************************************************/
5734
5735/* This method is called by the network layer -- not to be confused with
5736 * ipw2100_set_mac_address() declared above called by this driver (and this
5737 * method as well) to talk to the firmware */
5738static int ipw2100_set_address(struct net_device *dev, void *p)
5739{
5740 struct ipw2100_priv *priv = libipw_priv(dev);
5741 struct sockaddr *addr = p;
5742 int err = 0;
5743
5744 if (!is_valid_ether_addr(addr->sa_data))
5745 return -EADDRNOTAVAIL;
5746
5747 mutex_lock(&priv->action_mutex);
5748
5749 priv->config |= CFG_CUSTOM_MAC;
5750 memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
5751
5752 err = ipw2100_set_mac_address(priv, 0);
5753 if (err)
5754 goto done;
5755
5756 priv->reset_backoff = 0;
5757 mutex_unlock(&priv->action_mutex);
5758 ipw2100_reset_adapter(&priv->reset_work.work);
5759 return 0;
5760
5761 done:
5762 mutex_unlock(&priv->action_mutex);
5763 return err;
5764}
5765
5766static int ipw2100_open(struct net_device *dev)
5767{
5768 struct ipw2100_priv *priv = libipw_priv(dev);
5769 unsigned long flags;
5770 IPW_DEBUG_INFO("dev->open\n");
5771
5772 spin_lock_irqsave(&priv->low_lock, flags);
5773 if (priv->status & STATUS_ASSOCIATED) {
5774 netif_carrier_on(dev);
5775 netif_start_queue(dev);
5776 }
5777 spin_unlock_irqrestore(&priv->low_lock, flags);
5778
5779 return 0;
5780}
5781
5782static int ipw2100_close(struct net_device *dev)
5783{
5784 struct ipw2100_priv *priv = libipw_priv(dev);
5785 unsigned long flags;
5786 struct list_head *element;
5787 struct ipw2100_tx_packet *packet;
5788
5789 IPW_DEBUG_INFO("enter\n");
5790
5791 spin_lock_irqsave(&priv->low_lock, flags);
5792
5793 if (priv->status & STATUS_ASSOCIATED)
5794 netif_carrier_off(dev);
5795 netif_stop_queue(dev);
5796
5797 /* Flush the TX queue ... */
5798 while (!list_empty(&priv->tx_pend_list)) {
5799 element = priv->tx_pend_list.next;
5800 packet = list_entry(element, struct ipw2100_tx_packet, list);
5801
5802 list_del(element);
5803 DEC_STAT(&priv->tx_pend_stat);
5804
5805 libipw_txb_free(packet->info.d_struct.txb);
5806 packet->info.d_struct.txb = NULL;
5807
5808 list_add_tail(element, &priv->tx_free_list);
5809 INC_STAT(&priv->tx_free_stat);
5810 }
5811 spin_unlock_irqrestore(&priv->low_lock, flags);
5812
5813 IPW_DEBUG_INFO("exit\n");
5814
5815 return 0;
5816}
5817
5818/*
5819 * TODO: Fix this function... its just wrong
5820 */
5821static void ipw2100_tx_timeout(struct net_device *dev, unsigned int txqueue)
5822{
5823 struct ipw2100_priv *priv = libipw_priv(dev);
5824
5825 dev->stats.tx_errors++;
5826
5827#ifdef CONFIG_IPW2100_MONITOR
5828 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
5829 return;
5830#endif
5831
5832 IPW_DEBUG_INFO("%s: TX timed out. Scheduling firmware restart.\n",
5833 dev->name);
5834 schedule_reset(priv);
5835}
5836
5837static int ipw2100_wpa_enable(struct ipw2100_priv *priv, int value)
5838{
5839 /* This is called when wpa_supplicant loads and closes the driver
5840 * interface. */
5841 priv->ieee->wpa_enabled = value;
5842 return 0;
5843}
5844
5845static int ipw2100_wpa_set_auth_algs(struct ipw2100_priv *priv, int value)
5846{
5847
5848 struct libipw_device *ieee = priv->ieee;
5849 struct libipw_security sec = {
5850 .flags = SEC_AUTH_MODE,
5851 };
5852 int ret = 0;
5853
5854 if (value & IW_AUTH_ALG_SHARED_KEY) {
5855 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
5856 ieee->open_wep = 0;
5857 } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
5858 sec.auth_mode = WLAN_AUTH_OPEN;
5859 ieee->open_wep = 1;
5860 } else if (value & IW_AUTH_ALG_LEAP) {
5861 sec.auth_mode = WLAN_AUTH_LEAP;
5862 ieee->open_wep = 1;
5863 } else
5864 return -EINVAL;
5865
5866 if (ieee->set_security)
5867 ieee->set_security(ieee->dev, &sec);
5868 else
5869 ret = -EOPNOTSUPP;
5870
5871 return ret;
5872}
5873
5874static void ipw2100_wpa_assoc_frame(struct ipw2100_priv *priv,
5875 char *wpa_ie, int wpa_ie_len)
5876{
5877
5878 struct ipw2100_wpa_assoc_frame frame;
5879
5880 frame.fixed_ie_mask = 0;
5881
5882 /* copy WPA IE */
5883 memcpy(frame.var_ie, wpa_ie, wpa_ie_len);
5884 frame.var_ie_len = wpa_ie_len;
5885
5886 /* make sure WPA is enabled */
5887 ipw2100_wpa_enable(priv, 1);
5888 ipw2100_set_wpa_ie(priv, &frame, 0);
5889}
5890
5891static void ipw_ethtool_get_drvinfo(struct net_device *dev,
5892 struct ethtool_drvinfo *info)
5893{
5894 struct ipw2100_priv *priv = libipw_priv(dev);
5895 char fw_ver[64];
5896
5897 strscpy(info->driver, DRV_NAME, sizeof(info->driver));
5898 strscpy(info->version, DRV_VERSION, sizeof(info->version));
5899
5900 ipw2100_get_fwversion(priv, fw_ver, sizeof(fw_ver));
5901
5902 strscpy(info->fw_version, fw_ver, sizeof(info->fw_version));
5903 strscpy(info->bus_info, pci_name(priv->pci_dev),
5904 sizeof(info->bus_info));
5905}
5906
5907static u32 ipw2100_ethtool_get_link(struct net_device *dev)
5908{
5909 struct ipw2100_priv *priv = libipw_priv(dev);
5910 return (priv->status & STATUS_ASSOCIATED) ? 1 : 0;
5911}
5912
5913static const struct ethtool_ops ipw2100_ethtool_ops = {
5914 .get_link = ipw2100_ethtool_get_link,
5915 .get_drvinfo = ipw_ethtool_get_drvinfo,
5916};
5917
5918static void ipw2100_hang_check(struct work_struct *work)
5919{
5920 struct ipw2100_priv *priv =
5921 container_of(work, struct ipw2100_priv, hang_check.work);
5922 unsigned long flags;
5923 u32 rtc = 0xa5a5a5a5;
5924 u32 len = sizeof(rtc);
5925 int restart = 0;
5926
5927 spin_lock_irqsave(&priv->low_lock, flags);
5928
5929 if (priv->fatal_error != 0) {
5930 /* If fatal_error is set then we need to restart */
5931 IPW_DEBUG_INFO("%s: Hardware fatal error detected.\n",
5932 priv->net_dev->name);
5933
5934 restart = 1;
5935 } else if (ipw2100_get_ordinal(priv, IPW_ORD_RTC_TIME, &rtc, &len) ||
5936 (rtc == priv->last_rtc)) {
5937 /* Check if firmware is hung */
5938 IPW_DEBUG_INFO("%s: Firmware RTC stalled.\n",
5939 priv->net_dev->name);
5940
5941 restart = 1;
5942 }
5943
5944 if (restart) {
5945 /* Kill timer */
5946 priv->stop_hang_check = 1;
5947 priv->hangs++;
5948
5949 /* Restart the NIC */
5950 schedule_reset(priv);
5951 }
5952
5953 priv->last_rtc = rtc;
5954
5955 if (!priv->stop_hang_check)
5956 schedule_delayed_work(&priv->hang_check, HZ / 2);
5957
5958 spin_unlock_irqrestore(&priv->low_lock, flags);
5959}
5960
5961static void ipw2100_rf_kill(struct work_struct *work)
5962{
5963 struct ipw2100_priv *priv =
5964 container_of(work, struct ipw2100_priv, rf_kill.work);
5965 unsigned long flags;
5966
5967 spin_lock_irqsave(&priv->low_lock, flags);
5968
5969 if (rf_kill_active(priv)) {
5970 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
5971 if (!priv->stop_rf_kill)
5972 schedule_delayed_work(&priv->rf_kill,
5973 round_jiffies_relative(HZ));
5974 goto exit_unlock;
5975 }
5976
5977 /* RF Kill is now disabled, so bring the device back up */
5978
5979 if (!(priv->status & STATUS_RF_KILL_MASK)) {
5980 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
5981 "device\n");
5982 schedule_reset(priv);
5983 } else
5984 IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still "
5985 "enabled\n");
5986
5987 exit_unlock:
5988 spin_unlock_irqrestore(&priv->low_lock, flags);
5989}
5990
5991static void ipw2100_irq_tasklet(struct tasklet_struct *t);
5992
5993static const struct net_device_ops ipw2100_netdev_ops = {
5994 .ndo_open = ipw2100_open,
5995 .ndo_stop = ipw2100_close,
5996 .ndo_start_xmit = libipw_xmit,
5997 .ndo_tx_timeout = ipw2100_tx_timeout,
5998 .ndo_set_mac_address = ipw2100_set_address,
5999 .ndo_validate_addr = eth_validate_addr,
6000};
6001
6002/* Look into using netdev destructor to shutdown libipw? */
6003
6004static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
6005 void __iomem * ioaddr)
6006{
6007 struct ipw2100_priv *priv;
6008 struct net_device *dev;
6009
6010 dev = alloc_libipw(sizeof(struct ipw2100_priv), 0);
6011 if (!dev)
6012 return NULL;
6013 priv = libipw_priv(dev);
6014 priv->ieee = netdev_priv(dev);
6015 priv->pci_dev = pci_dev;
6016 priv->net_dev = dev;
6017 priv->ioaddr = ioaddr;
6018
6019 priv->ieee->hard_start_xmit = ipw2100_tx;
6020 priv->ieee->set_security = shim__set_security;
6021
6022 priv->ieee->perfect_rssi = -20;
6023 priv->ieee->worst_rssi = -85;
6024
6025 dev->netdev_ops = &ipw2100_netdev_ops;
6026 dev->ethtool_ops = &ipw2100_ethtool_ops;
6027 dev->wireless_handlers = &ipw2100_wx_handler_def;
6028 priv->wireless_data.libipw = priv->ieee;
6029 dev->wireless_data = &priv->wireless_data;
6030 dev->watchdog_timeo = 3 * HZ;
6031 dev->irq = 0;
6032 dev->min_mtu = 68;
6033 dev->max_mtu = LIBIPW_DATA_LEN;
6034
6035 /* NOTE: We don't use the wireless_handlers hook
6036 * in dev as the system will start throwing WX requests
6037 * to us before we're actually initialized and it just
6038 * ends up causing problems. So, we just handle
6039 * the WX extensions through the ipw2100_ioctl interface */
6040
6041 /* memset() puts everything to 0, so we only have explicitly set
6042 * those values that need to be something else */
6043
6044 /* If power management is turned on, default to AUTO mode */
6045 priv->power_mode = IPW_POWER_AUTO;
6046
6047#ifdef CONFIG_IPW2100_MONITOR
6048 priv->config |= CFG_CRC_CHECK;
6049#endif
6050 priv->ieee->wpa_enabled = 0;
6051 priv->ieee->drop_unencrypted = 0;
6052 priv->ieee->privacy_invoked = 0;
6053 priv->ieee->ieee802_1x = 1;
6054
6055 /* Set module parameters */
6056 switch (network_mode) {
6057 case 1:
6058 priv->ieee->iw_mode = IW_MODE_ADHOC;
6059 break;
6060#ifdef CONFIG_IPW2100_MONITOR
6061 case 2:
6062 priv->ieee->iw_mode = IW_MODE_MONITOR;
6063 break;
6064#endif
6065 default:
6066 case 0:
6067 priv->ieee->iw_mode = IW_MODE_INFRA;
6068 break;
6069 }
6070
6071 if (disable == 1)
6072 priv->status |= STATUS_RF_KILL_SW;
6073
6074 if (channel != 0 &&
6075 ((channel >= REG_MIN_CHANNEL) && (channel <= REG_MAX_CHANNEL))) {
6076 priv->config |= CFG_STATIC_CHANNEL;
6077 priv->channel = channel;
6078 }
6079
6080 if (associate)
6081 priv->config |= CFG_ASSOCIATE;
6082
6083 priv->beacon_interval = DEFAULT_BEACON_INTERVAL;
6084 priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
6085 priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
6086 priv->rts_threshold = DEFAULT_RTS_THRESHOLD | RTS_DISABLED;
6087 priv->frag_threshold = DEFAULT_FTS | FRAG_DISABLED;
6088 priv->tx_power = IPW_TX_POWER_DEFAULT;
6089 priv->tx_rates = DEFAULT_TX_RATES;
6090
6091 strcpy(priv->nick, "ipw2100");
6092
6093 spin_lock_init(&priv->low_lock);
6094 mutex_init(&priv->action_mutex);
6095 mutex_init(&priv->adapter_mutex);
6096
6097 init_waitqueue_head(&priv->wait_command_queue);
6098
6099 netif_carrier_off(dev);
6100
6101 INIT_LIST_HEAD(&priv->msg_free_list);
6102 INIT_LIST_HEAD(&priv->msg_pend_list);
6103 INIT_STAT(&priv->msg_free_stat);
6104 INIT_STAT(&priv->msg_pend_stat);
6105
6106 INIT_LIST_HEAD(&priv->tx_free_list);
6107 INIT_LIST_HEAD(&priv->tx_pend_list);
6108 INIT_STAT(&priv->tx_free_stat);
6109 INIT_STAT(&priv->tx_pend_stat);
6110
6111 INIT_LIST_HEAD(&priv->fw_pend_list);
6112 INIT_STAT(&priv->fw_pend_stat);
6113
6114 INIT_DELAYED_WORK(&priv->reset_work, ipw2100_reset_adapter);
6115 INIT_DELAYED_WORK(&priv->security_work, ipw2100_security_work);
6116 INIT_DELAYED_WORK(&priv->wx_event_work, ipw2100_wx_event_work);
6117 INIT_DELAYED_WORK(&priv->hang_check, ipw2100_hang_check);
6118 INIT_DELAYED_WORK(&priv->rf_kill, ipw2100_rf_kill);
6119 INIT_DELAYED_WORK(&priv->scan_event, ipw2100_scan_event);
6120
6121 tasklet_setup(&priv->irq_tasklet, ipw2100_irq_tasklet);
6122
6123 /* NOTE: We do not start the deferred work for status checks yet */
6124 priv->stop_rf_kill = 1;
6125 priv->stop_hang_check = 1;
6126
6127 return dev;
6128}
6129
6130static int ipw2100_pci_init_one(struct pci_dev *pci_dev,
6131 const struct pci_device_id *ent)
6132{
6133 void __iomem *ioaddr;
6134 struct net_device *dev = NULL;
6135 struct ipw2100_priv *priv = NULL;
6136 int err = 0;
6137 int registered = 0;
6138 u32 val;
6139
6140 IPW_DEBUG_INFO("enter\n");
6141
6142 if (!(pci_resource_flags(pci_dev, 0) & IORESOURCE_MEM)) {
6143 IPW_DEBUG_INFO("weird - resource type is not memory\n");
6144 err = -ENODEV;
6145 goto out;
6146 }
6147
6148 ioaddr = pci_iomap(pci_dev, 0, 0);
6149 if (!ioaddr) {
6150 printk(KERN_WARNING DRV_NAME
6151 "Error calling ioremap.\n");
6152 err = -EIO;
6153 goto fail;
6154 }
6155
6156 /* allocate and initialize our net_device */
6157 dev = ipw2100_alloc_device(pci_dev, ioaddr);
6158 if (!dev) {
6159 printk(KERN_WARNING DRV_NAME
6160 "Error calling ipw2100_alloc_device.\n");
6161 err = -ENOMEM;
6162 goto fail;
6163 }
6164
6165 /* set up PCI mappings for device */
6166 err = pci_enable_device(pci_dev);
6167 if (err) {
6168 printk(KERN_WARNING DRV_NAME
6169 "Error calling pci_enable_device.\n");
6170 return err;
6171 }
6172
6173 priv = libipw_priv(dev);
6174
6175 pci_set_master(pci_dev);
6176 pci_set_drvdata(pci_dev, priv);
6177
6178 err = dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32));
6179 if (err) {
6180 printk(KERN_WARNING DRV_NAME
6181 "Error calling pci_set_dma_mask.\n");
6182 pci_disable_device(pci_dev);
6183 return err;
6184 }
6185
6186 err = pci_request_regions(pci_dev, DRV_NAME);
6187 if (err) {
6188 printk(KERN_WARNING DRV_NAME
6189 "Error calling pci_request_regions.\n");
6190 pci_disable_device(pci_dev);
6191 return err;
6192 }
6193
6194 /* We disable the RETRY_TIMEOUT register (0x41) to keep
6195 * PCI Tx retries from interfering with C3 CPU state */
6196 pci_read_config_dword(pci_dev, 0x40, &val);
6197 if ((val & 0x0000ff00) != 0)
6198 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6199
6200 if (!ipw2100_hw_is_adapter_in_system(dev)) {
6201 printk(KERN_WARNING DRV_NAME
6202 "Device not found via register read.\n");
6203 err = -ENODEV;
6204 goto fail;
6205 }
6206
6207 SET_NETDEV_DEV(dev, &pci_dev->dev);
6208
6209 /* Force interrupts to be shut off on the device */
6210 priv->status |= STATUS_INT_ENABLED;
6211 ipw2100_disable_interrupts(priv);
6212
6213 /* Allocate and initialize the Tx/Rx queues and lists */
6214 if (ipw2100_queues_allocate(priv)) {
6215 printk(KERN_WARNING DRV_NAME
6216 "Error calling ipw2100_queues_allocate.\n");
6217 err = -ENOMEM;
6218 goto fail;
6219 }
6220 ipw2100_queues_initialize(priv);
6221
6222 err = request_irq(pci_dev->irq,
6223 ipw2100_interrupt, IRQF_SHARED, dev->name, priv);
6224 if (err) {
6225 printk(KERN_WARNING DRV_NAME
6226 "Error calling request_irq: %d.\n", pci_dev->irq);
6227 goto fail;
6228 }
6229 dev->irq = pci_dev->irq;
6230
6231 IPW_DEBUG_INFO("Attempting to register device...\n");
6232
6233 printk(KERN_INFO DRV_NAME
6234 ": Detected Intel PRO/Wireless 2100 Network Connection\n");
6235
6236 err = ipw2100_up(priv, 1);
6237 if (err)
6238 goto fail;
6239
6240 err = ipw2100_wdev_init(dev);
6241 if (err)
6242 goto fail;
6243 registered = 1;
6244
6245 /* Bring up the interface. Pre 0.46, after we registered the
6246 * network device we would call ipw2100_up. This introduced a race
6247 * condition with newer hotplug configurations (network was coming
6248 * up and making calls before the device was initialized).
6249 */
6250 err = register_netdev(dev);
6251 if (err) {
6252 printk(KERN_WARNING DRV_NAME
6253 "Error calling register_netdev.\n");
6254 goto fail;
6255 }
6256 registered = 2;
6257
6258 mutex_lock(&priv->action_mutex);
6259
6260 IPW_DEBUG_INFO("%s: Bound to %s\n", dev->name, pci_name(pci_dev));
6261
6262 /* perform this after register_netdev so that dev->name is set */
6263 err = sysfs_create_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6264 if (err)
6265 goto fail_unlock;
6266
6267 /* If the RF Kill switch is disabled, go ahead and complete the
6268 * startup sequence */
6269 if (!(priv->status & STATUS_RF_KILL_MASK)) {
6270 /* Enable the adapter - sends HOST_COMPLETE */
6271 if (ipw2100_enable_adapter(priv)) {
6272 printk(KERN_WARNING DRV_NAME
6273 ": %s: failed in call to enable adapter.\n",
6274 priv->net_dev->name);
6275 ipw2100_hw_stop_adapter(priv);
6276 err = -EIO;
6277 goto fail_unlock;
6278 }
6279
6280 /* Start a scan . . . */
6281 ipw2100_set_scan_options(priv);
6282 ipw2100_start_scan(priv);
6283 }
6284
6285 IPW_DEBUG_INFO("exit\n");
6286
6287 priv->status |= STATUS_INITIALIZED;
6288
6289 mutex_unlock(&priv->action_mutex);
6290out:
6291 return err;
6292
6293 fail_unlock:
6294 mutex_unlock(&priv->action_mutex);
6295 fail:
6296 if (dev) {
6297 if (registered >= 2)
6298 unregister_netdev(dev);
6299
6300 if (registered) {
6301 wiphy_unregister(priv->ieee->wdev.wiphy);
6302 kfree(priv->ieee->bg_band.channels);
6303 }
6304
6305 ipw2100_hw_stop_adapter(priv);
6306
6307 ipw2100_disable_interrupts(priv);
6308
6309 if (dev->irq)
6310 free_irq(dev->irq, priv);
6311
6312 ipw2100_kill_works(priv);
6313
6314 /* These are safe to call even if they weren't allocated */
6315 ipw2100_queues_free(priv);
6316 sysfs_remove_group(&pci_dev->dev.kobj,
6317 &ipw2100_attribute_group);
6318
6319 free_libipw(dev, 0);
6320 }
6321
6322 pci_iounmap(pci_dev, ioaddr);
6323
6324 pci_release_regions(pci_dev);
6325 pci_disable_device(pci_dev);
6326 goto out;
6327}
6328
6329static void ipw2100_pci_remove_one(struct pci_dev *pci_dev)
6330{
6331 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6332 struct net_device *dev = priv->net_dev;
6333
6334 mutex_lock(&priv->action_mutex);
6335
6336 priv->status &= ~STATUS_INITIALIZED;
6337
6338 sysfs_remove_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6339
6340#ifdef CONFIG_PM
6341 if (ipw2100_firmware.version)
6342 ipw2100_release_firmware(priv, &ipw2100_firmware);
6343#endif
6344 /* Take down the hardware */
6345 ipw2100_down(priv);
6346
6347 /* Release the mutex so that the network subsystem can
6348 * complete any needed calls into the driver... */
6349 mutex_unlock(&priv->action_mutex);
6350
6351 /* Unregister the device first - this results in close()
6352 * being called if the device is open. If we free storage
6353 * first, then close() will crash.
6354 * FIXME: remove the comment above. */
6355 unregister_netdev(dev);
6356
6357 ipw2100_kill_works(priv);
6358
6359 ipw2100_queues_free(priv);
6360
6361 /* Free potential debugging firmware snapshot */
6362 ipw2100_snapshot_free(priv);
6363
6364 free_irq(dev->irq, priv);
6365
6366 pci_iounmap(pci_dev, priv->ioaddr);
6367
6368 /* wiphy_unregister needs to be here, before free_libipw */
6369 wiphy_unregister(priv->ieee->wdev.wiphy);
6370 kfree(priv->ieee->bg_band.channels);
6371 free_libipw(dev, 0);
6372
6373 pci_release_regions(pci_dev);
6374 pci_disable_device(pci_dev);
6375
6376 IPW_DEBUG_INFO("exit\n");
6377}
6378
6379static int __maybe_unused ipw2100_suspend(struct device *dev_d)
6380{
6381 struct ipw2100_priv *priv = dev_get_drvdata(dev_d);
6382 struct net_device *dev = priv->net_dev;
6383
6384 IPW_DEBUG_INFO("%s: Going into suspend...\n", dev->name);
6385
6386 mutex_lock(&priv->action_mutex);
6387 if (priv->status & STATUS_INITIALIZED) {
6388 /* Take down the device; powers it off, etc. */
6389 ipw2100_down(priv);
6390 }
6391
6392 /* Remove the PRESENT state of the device */
6393 netif_device_detach(dev);
6394
6395 priv->suspend_at = ktime_get_boottime_seconds();
6396
6397 mutex_unlock(&priv->action_mutex);
6398
6399 return 0;
6400}
6401
6402static int __maybe_unused ipw2100_resume(struct device *dev_d)
6403{
6404 struct pci_dev *pci_dev = to_pci_dev(dev_d);
6405 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6406 struct net_device *dev = priv->net_dev;
6407 u32 val;
6408
6409 if (IPW2100_PM_DISABLED)
6410 return 0;
6411
6412 mutex_lock(&priv->action_mutex);
6413
6414 IPW_DEBUG_INFO("%s: Coming out of suspend...\n", dev->name);
6415
6416 /*
6417 * Suspend/Resume resets the PCI configuration space, so we have to
6418 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
6419 * from interfering with C3 CPU state. pci_restore_state won't help
6420 * here since it only restores the first 64 bytes pci config header.
6421 */
6422 pci_read_config_dword(pci_dev, 0x40, &val);
6423 if ((val & 0x0000ff00) != 0)
6424 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6425
6426 /* Set the device back into the PRESENT state; this will also wake
6427 * the queue of needed */
6428 netif_device_attach(dev);
6429
6430 priv->suspend_time = ktime_get_boottime_seconds() - priv->suspend_at;
6431
6432 /* Bring the device back up */
6433 if (!(priv->status & STATUS_RF_KILL_SW))
6434 ipw2100_up(priv, 0);
6435
6436 mutex_unlock(&priv->action_mutex);
6437
6438 return 0;
6439}
6440
6441static void ipw2100_shutdown(struct pci_dev *pci_dev)
6442{
6443 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6444
6445 /* Take down the device; powers it off, etc. */
6446 ipw2100_down(priv);
6447
6448 pci_disable_device(pci_dev);
6449}
6450
6451#define IPW2100_DEV_ID(x) { PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, x }
6452
6453static const struct pci_device_id ipw2100_pci_id_table[] = {
6454 IPW2100_DEV_ID(0x2520), /* IN 2100A mPCI 3A */
6455 IPW2100_DEV_ID(0x2521), /* IN 2100A mPCI 3B */
6456 IPW2100_DEV_ID(0x2524), /* IN 2100A mPCI 3B */
6457 IPW2100_DEV_ID(0x2525), /* IN 2100A mPCI 3B */
6458 IPW2100_DEV_ID(0x2526), /* IN 2100A mPCI Gen A3 */
6459 IPW2100_DEV_ID(0x2522), /* IN 2100 mPCI 3B */
6460 IPW2100_DEV_ID(0x2523), /* IN 2100 mPCI 3A */
6461 IPW2100_DEV_ID(0x2527), /* IN 2100 mPCI 3B */
6462 IPW2100_DEV_ID(0x2528), /* IN 2100 mPCI 3B */
6463 IPW2100_DEV_ID(0x2529), /* IN 2100 mPCI 3B */
6464 IPW2100_DEV_ID(0x252B), /* IN 2100 mPCI 3A */
6465 IPW2100_DEV_ID(0x252C), /* IN 2100 mPCI 3A */
6466 IPW2100_DEV_ID(0x252D), /* IN 2100 mPCI 3A */
6467
6468 IPW2100_DEV_ID(0x2550), /* IB 2100A mPCI 3B */
6469 IPW2100_DEV_ID(0x2551), /* IB 2100 mPCI 3B */
6470 IPW2100_DEV_ID(0x2553), /* IB 2100 mPCI 3B */
6471 IPW2100_DEV_ID(0x2554), /* IB 2100 mPCI 3B */
6472 IPW2100_DEV_ID(0x2555), /* IB 2100 mPCI 3B */
6473
6474 IPW2100_DEV_ID(0x2560), /* DE 2100A mPCI 3A */
6475 IPW2100_DEV_ID(0x2562), /* DE 2100A mPCI 3A */
6476 IPW2100_DEV_ID(0x2563), /* DE 2100A mPCI 3A */
6477 IPW2100_DEV_ID(0x2561), /* DE 2100 mPCI 3A */
6478 IPW2100_DEV_ID(0x2565), /* DE 2100 mPCI 3A */
6479 IPW2100_DEV_ID(0x2566), /* DE 2100 mPCI 3A */
6480 IPW2100_DEV_ID(0x2567), /* DE 2100 mPCI 3A */
6481
6482 IPW2100_DEV_ID(0x2570), /* GA 2100 mPCI 3B */
6483
6484 IPW2100_DEV_ID(0x2580), /* TO 2100A mPCI 3B */
6485 IPW2100_DEV_ID(0x2582), /* TO 2100A mPCI 3B */
6486 IPW2100_DEV_ID(0x2583), /* TO 2100A mPCI 3B */
6487 IPW2100_DEV_ID(0x2581), /* TO 2100 mPCI 3B */
6488 IPW2100_DEV_ID(0x2585), /* TO 2100 mPCI 3B */
6489 IPW2100_DEV_ID(0x2586), /* TO 2100 mPCI 3B */
6490 IPW2100_DEV_ID(0x2587), /* TO 2100 mPCI 3B */
6491
6492 IPW2100_DEV_ID(0x2590), /* SO 2100A mPCI 3B */
6493 IPW2100_DEV_ID(0x2592), /* SO 2100A mPCI 3B */
6494 IPW2100_DEV_ID(0x2591), /* SO 2100 mPCI 3B */
6495 IPW2100_DEV_ID(0x2593), /* SO 2100 mPCI 3B */
6496 IPW2100_DEV_ID(0x2596), /* SO 2100 mPCI 3B */
6497 IPW2100_DEV_ID(0x2598), /* SO 2100 mPCI 3B */
6498
6499 IPW2100_DEV_ID(0x25A0), /* HP 2100 mPCI 3B */
6500 {0,},
6501};
6502
6503MODULE_DEVICE_TABLE(pci, ipw2100_pci_id_table);
6504
6505static SIMPLE_DEV_PM_OPS(ipw2100_pm_ops, ipw2100_suspend, ipw2100_resume);
6506
6507static struct pci_driver ipw2100_pci_driver = {
6508 .name = DRV_NAME,
6509 .id_table = ipw2100_pci_id_table,
6510 .probe = ipw2100_pci_init_one,
6511 .remove = ipw2100_pci_remove_one,
6512 .driver.pm = &ipw2100_pm_ops,
6513 .shutdown = ipw2100_shutdown,
6514};
6515
6516/*
6517 * Initialize the ipw2100 driver/module
6518 *
6519 * @returns 0 if ok, < 0 errno node con error.
6520 *
6521 * Note: we cannot init the /proc stuff until the PCI driver is there,
6522 * or we risk an unlikely race condition on someone accessing
6523 * uninitialized data in the PCI dev struct through /proc.
6524 */
6525static int __init ipw2100_init(void)
6526{
6527 int ret;
6528
6529 printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
6530 printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT);
6531
6532 cpu_latency_qos_add_request(&ipw2100_pm_qos_req, PM_QOS_DEFAULT_VALUE);
6533
6534 ret = pci_register_driver(&ipw2100_pci_driver);
6535 if (ret)
6536 goto out;
6537
6538#ifdef CONFIG_IPW2100_DEBUG
6539 ipw2100_debug_level = debug;
6540 ret = driver_create_file(&ipw2100_pci_driver.driver,
6541 &driver_attr_debug_level);
6542#endif
6543
6544out:
6545 return ret;
6546}
6547
6548/*
6549 * Cleanup ipw2100 driver registration
6550 */
6551static void __exit ipw2100_exit(void)
6552{
6553 /* FIXME: IPG: check that we have no instances of the devices open */
6554#ifdef CONFIG_IPW2100_DEBUG
6555 driver_remove_file(&ipw2100_pci_driver.driver,
6556 &driver_attr_debug_level);
6557#endif
6558 pci_unregister_driver(&ipw2100_pci_driver);
6559 cpu_latency_qos_remove_request(&ipw2100_pm_qos_req);
6560}
6561
6562module_init(ipw2100_init);
6563module_exit(ipw2100_exit);
6564
6565static int ipw2100_wx_get_name(struct net_device *dev,
6566 struct iw_request_info *info,
6567 union iwreq_data *wrqu, char *extra)
6568{
6569 /*
6570 * This can be called at any time. No action lock required
6571 */
6572
6573 struct ipw2100_priv *priv = libipw_priv(dev);
6574 if (!(priv->status & STATUS_ASSOCIATED))
6575 strcpy(wrqu->name, "unassociated");
6576 else
6577 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11b");
6578
6579 IPW_DEBUG_WX("Name: %s\n", wrqu->name);
6580 return 0;
6581}
6582
6583static int ipw2100_wx_set_freq(struct net_device *dev,
6584 struct iw_request_info *info,
6585 union iwreq_data *wrqu, char *extra)
6586{
6587 struct ipw2100_priv *priv = libipw_priv(dev);
6588 struct iw_freq *fwrq = &wrqu->freq;
6589 int err = 0;
6590
6591 if (priv->ieee->iw_mode == IW_MODE_INFRA)
6592 return -EOPNOTSUPP;
6593
6594 mutex_lock(&priv->action_mutex);
6595 if (!(priv->status & STATUS_INITIALIZED)) {
6596 err = -EIO;
6597 goto done;
6598 }
6599
6600 /* if setting by freq convert to channel */
6601 if (fwrq->e == 1) {
6602 if ((fwrq->m >= (int)2.412e8 && fwrq->m <= (int)2.487e8)) {
6603 int f = fwrq->m / 100000;
6604 int c = 0;
6605
6606 while ((c < REG_MAX_CHANNEL) &&
6607 (f != ipw2100_frequencies[c]))
6608 c++;
6609
6610 /* hack to fall through */
6611 fwrq->e = 0;
6612 fwrq->m = c + 1;
6613 }
6614 }
6615
6616 if (fwrq->e > 0 || fwrq->m > 1000) {
6617 err = -EOPNOTSUPP;
6618 goto done;
6619 } else { /* Set the channel */
6620 IPW_DEBUG_WX("SET Freq/Channel -> %d\n", fwrq->m);
6621 err = ipw2100_set_channel(priv, fwrq->m, 0);
6622 }
6623
6624 done:
6625 mutex_unlock(&priv->action_mutex);
6626 return err;
6627}
6628
6629static int ipw2100_wx_get_freq(struct net_device *dev,
6630 struct iw_request_info *info,
6631 union iwreq_data *wrqu, char *extra)
6632{
6633 /*
6634 * This can be called at any time. No action lock required
6635 */
6636
6637 struct ipw2100_priv *priv = libipw_priv(dev);
6638
6639 wrqu->freq.e = 0;
6640
6641 /* If we are associated, trying to associate, or have a statically
6642 * configured CHANNEL then return that; otherwise return ANY */
6643 if (priv->config & CFG_STATIC_CHANNEL ||
6644 priv->status & STATUS_ASSOCIATED)
6645 wrqu->freq.m = priv->channel;
6646 else
6647 wrqu->freq.m = 0;
6648
6649 IPW_DEBUG_WX("GET Freq/Channel -> %d\n", priv->channel);
6650 return 0;
6651
6652}
6653
6654static int ipw2100_wx_set_mode(struct net_device *dev,
6655 struct iw_request_info *info,
6656 union iwreq_data *wrqu, char *extra)
6657{
6658 struct ipw2100_priv *priv = libipw_priv(dev);
6659 int err = 0;
6660
6661 IPW_DEBUG_WX("SET Mode -> %d\n", wrqu->mode);
6662
6663 if (wrqu->mode == priv->ieee->iw_mode)
6664 return 0;
6665
6666 mutex_lock(&priv->action_mutex);
6667 if (!(priv->status & STATUS_INITIALIZED)) {
6668 err = -EIO;
6669 goto done;
6670 }
6671
6672 switch (wrqu->mode) {
6673#ifdef CONFIG_IPW2100_MONITOR
6674 case IW_MODE_MONITOR:
6675 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
6676 break;
6677#endif /* CONFIG_IPW2100_MONITOR */
6678 case IW_MODE_ADHOC:
6679 err = ipw2100_switch_mode(priv, IW_MODE_ADHOC);
6680 break;
6681 case IW_MODE_INFRA:
6682 case IW_MODE_AUTO:
6683 default:
6684 err = ipw2100_switch_mode(priv, IW_MODE_INFRA);
6685 break;
6686 }
6687
6688 done:
6689 mutex_unlock(&priv->action_mutex);
6690 return err;
6691}
6692
6693static int ipw2100_wx_get_mode(struct net_device *dev,
6694 struct iw_request_info *info,
6695 union iwreq_data *wrqu, char *extra)
6696{
6697 /*
6698 * This can be called at any time. No action lock required
6699 */
6700
6701 struct ipw2100_priv *priv = libipw_priv(dev);
6702
6703 wrqu->mode = priv->ieee->iw_mode;
6704 IPW_DEBUG_WX("GET Mode -> %d\n", wrqu->mode);
6705
6706 return 0;
6707}
6708
6709#define POWER_MODES 5
6710
6711/* Values are in microsecond */
6712static const s32 timeout_duration[POWER_MODES] = {
6713 350000,
6714 250000,
6715 75000,
6716 37000,
6717 25000,
6718};
6719
6720static const s32 period_duration[POWER_MODES] = {
6721 400000,
6722 700000,
6723 1000000,
6724 1000000,
6725 1000000
6726};
6727
6728static int ipw2100_wx_get_range(struct net_device *dev,
6729 struct iw_request_info *info,
6730 union iwreq_data *wrqu, char *extra)
6731{
6732 /*
6733 * This can be called at any time. No action lock required
6734 */
6735
6736 struct ipw2100_priv *priv = libipw_priv(dev);
6737 struct iw_range *range = (struct iw_range *)extra;
6738 u16 val;
6739 int i, level;
6740
6741 wrqu->data.length = sizeof(*range);
6742 memset(range, 0, sizeof(*range));
6743
6744 /* Let's try to keep this struct in the same order as in
6745 * linux/include/wireless.h
6746 */
6747
6748 /* TODO: See what values we can set, and remove the ones we can't
6749 * set, or fill them with some default data.
6750 */
6751
6752 /* ~5 Mb/s real (802.11b) */
6753 range->throughput = 5 * 1000 * 1000;
6754
6755// range->sensitivity; /* signal level threshold range */
6756
6757 range->max_qual.qual = 100;
6758 /* TODO: Find real max RSSI and stick here */
6759 range->max_qual.level = 0;
6760 range->max_qual.noise = 0;
6761 range->max_qual.updated = 7; /* Updated all three */
6762
6763 range->avg_qual.qual = 70; /* > 8% missed beacons is 'bad' */
6764 /* TODO: Find real 'good' to 'bad' threshold value for RSSI */
6765 range->avg_qual.level = 20 + IPW2100_RSSI_TO_DBM;
6766 range->avg_qual.noise = 0;
6767 range->avg_qual.updated = 7; /* Updated all three */
6768
6769 range->num_bitrates = RATE_COUNT;
6770
6771 for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++) {
6772 range->bitrate[i] = ipw2100_bg_rates[i].bitrate * 100 * 1000;
6773 }
6774
6775 range->min_rts = MIN_RTS_THRESHOLD;
6776 range->max_rts = MAX_RTS_THRESHOLD;
6777 range->min_frag = MIN_FRAG_THRESHOLD;
6778 range->max_frag = MAX_FRAG_THRESHOLD;
6779
6780 range->min_pmp = period_duration[0]; /* Minimal PM period */
6781 range->max_pmp = period_duration[POWER_MODES - 1]; /* Maximal PM period */
6782 range->min_pmt = timeout_duration[POWER_MODES - 1]; /* Minimal PM timeout */
6783 range->max_pmt = timeout_duration[0]; /* Maximal PM timeout */
6784
6785 /* How to decode max/min PM period */
6786 range->pmp_flags = IW_POWER_PERIOD;
6787 /* How to decode max/min PM period */
6788 range->pmt_flags = IW_POWER_TIMEOUT;
6789 /* What PM options are supported */
6790 range->pm_capa = IW_POWER_TIMEOUT | IW_POWER_PERIOD;
6791
6792 range->encoding_size[0] = 5;
6793 range->encoding_size[1] = 13; /* Different token sizes */
6794 range->num_encoding_sizes = 2; /* Number of entry in the list */
6795 range->max_encoding_tokens = WEP_KEYS; /* Max number of tokens */
6796// range->encoding_login_index; /* token index for login token */
6797
6798 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
6799 range->txpower_capa = IW_TXPOW_DBM;
6800 range->num_txpower = IW_MAX_TXPOWER;
6801 for (i = 0, level = (IPW_TX_POWER_MAX_DBM * 16);
6802 i < IW_MAX_TXPOWER;
6803 i++, level -=
6804 ((IPW_TX_POWER_MAX_DBM -
6805 IPW_TX_POWER_MIN_DBM) * 16) / (IW_MAX_TXPOWER - 1))
6806 range->txpower[i] = level / 16;
6807 } else {
6808 range->txpower_capa = 0;
6809 range->num_txpower = 0;
6810 }
6811
6812 /* Set the Wireless Extension versions */
6813 range->we_version_compiled = WIRELESS_EXT;
6814 range->we_version_source = 18;
6815
6816// range->retry_capa; /* What retry options are supported */
6817// range->retry_flags; /* How to decode max/min retry limit */
6818// range->r_time_flags; /* How to decode max/min retry life */
6819// range->min_retry; /* Minimal number of retries */
6820// range->max_retry; /* Maximal number of retries */
6821// range->min_r_time; /* Minimal retry lifetime */
6822// range->max_r_time; /* Maximal retry lifetime */
6823
6824 range->num_channels = FREQ_COUNT;
6825
6826 val = 0;
6827 for (i = 0; i < FREQ_COUNT; i++) {
6828 // TODO: Include only legal frequencies for some countries
6829// if (local->channel_mask & (1 << i)) {
6830 range->freq[val].i = i + 1;
6831 range->freq[val].m = ipw2100_frequencies[i] * 100000;
6832 range->freq[val].e = 1;
6833 val++;
6834// }
6835 if (val == IW_MAX_FREQUENCIES)
6836 break;
6837 }
6838 range->num_frequency = val;
6839
6840 /* Event capability (kernel + driver) */
6841 range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
6842 IW_EVENT_CAPA_MASK(SIOCGIWAP));
6843 range->event_capa[1] = IW_EVENT_CAPA_K_1;
6844
6845 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
6846 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
6847
6848 IPW_DEBUG_WX("GET Range\n");
6849
6850 return 0;
6851}
6852
6853static int ipw2100_wx_set_wap(struct net_device *dev,
6854 struct iw_request_info *info,
6855 union iwreq_data *wrqu, char *extra)
6856{
6857 struct ipw2100_priv *priv = libipw_priv(dev);
6858 int err = 0;
6859
6860 // sanity checks
6861 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
6862 return -EINVAL;
6863
6864 mutex_lock(&priv->action_mutex);
6865 if (!(priv->status & STATUS_INITIALIZED)) {
6866 err = -EIO;
6867 goto done;
6868 }
6869
6870 if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data) ||
6871 is_zero_ether_addr(wrqu->ap_addr.sa_data)) {
6872 /* we disable mandatory BSSID association */
6873 IPW_DEBUG_WX("exit - disable mandatory BSSID\n");
6874 priv->config &= ~CFG_STATIC_BSSID;
6875 err = ipw2100_set_mandatory_bssid(priv, NULL, 0);
6876 goto done;
6877 }
6878
6879 priv->config |= CFG_STATIC_BSSID;
6880 memcpy(priv->mandatory_bssid_mac, wrqu->ap_addr.sa_data, ETH_ALEN);
6881
6882 err = ipw2100_set_mandatory_bssid(priv, wrqu->ap_addr.sa_data, 0);
6883
6884 IPW_DEBUG_WX("SET BSSID -> %pM\n", wrqu->ap_addr.sa_data);
6885
6886 done:
6887 mutex_unlock(&priv->action_mutex);
6888 return err;
6889}
6890
6891static int ipw2100_wx_get_wap(struct net_device *dev,
6892 struct iw_request_info *info,
6893 union iwreq_data *wrqu, char *extra)
6894{
6895 /*
6896 * This can be called at any time. No action lock required
6897 */
6898
6899 struct ipw2100_priv *priv = libipw_priv(dev);
6900
6901 /* If we are associated, trying to associate, or have a statically
6902 * configured BSSID then return that; otherwise return ANY */
6903 if (priv->config & CFG_STATIC_BSSID || priv->status & STATUS_ASSOCIATED) {
6904 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
6905 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
6906 } else
6907 eth_zero_addr(wrqu->ap_addr.sa_data);
6908
6909 IPW_DEBUG_WX("Getting WAP BSSID: %pM\n", wrqu->ap_addr.sa_data);
6910 return 0;
6911}
6912
6913static int ipw2100_wx_set_essid(struct net_device *dev,
6914 struct iw_request_info *info,
6915 union iwreq_data *wrqu, char *extra)
6916{
6917 struct ipw2100_priv *priv = libipw_priv(dev);
6918 char *essid = ""; /* ANY */
6919 int length = 0;
6920 int err = 0;
6921
6922 mutex_lock(&priv->action_mutex);
6923 if (!(priv->status & STATUS_INITIALIZED)) {
6924 err = -EIO;
6925 goto done;
6926 }
6927
6928 if (wrqu->essid.flags && wrqu->essid.length) {
6929 length = wrqu->essid.length;
6930 essid = extra;
6931 }
6932
6933 if (length == 0) {
6934 IPW_DEBUG_WX("Setting ESSID to ANY\n");
6935 priv->config &= ~CFG_STATIC_ESSID;
6936 err = ipw2100_set_essid(priv, NULL, 0, 0);
6937 goto done;
6938 }
6939
6940 length = min(length, IW_ESSID_MAX_SIZE);
6941
6942 priv->config |= CFG_STATIC_ESSID;
6943
6944 if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) {
6945 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
6946 err = 0;
6947 goto done;
6948 }
6949
6950 IPW_DEBUG_WX("Setting ESSID: '%*pE' (%d)\n", length, essid, length);
6951
6952 priv->essid_len = length;
6953 memcpy(priv->essid, essid, priv->essid_len);
6954
6955 err = ipw2100_set_essid(priv, essid, length, 0);
6956
6957 done:
6958 mutex_unlock(&priv->action_mutex);
6959 return err;
6960}
6961
6962static int ipw2100_wx_get_essid(struct net_device *dev,
6963 struct iw_request_info *info,
6964 union iwreq_data *wrqu, char *extra)
6965{
6966 /*
6967 * This can be called at any time. No action lock required
6968 */
6969
6970 struct ipw2100_priv *priv = libipw_priv(dev);
6971
6972 /* If we are associated, trying to associate, or have a statically
6973 * configured ESSID then return that; otherwise return ANY */
6974 if (priv->config & CFG_STATIC_ESSID || priv->status & STATUS_ASSOCIATED) {
6975 IPW_DEBUG_WX("Getting essid: '%*pE'\n",
6976 priv->essid_len, priv->essid);
6977 memcpy(extra, priv->essid, priv->essid_len);
6978 wrqu->essid.length = priv->essid_len;
6979 wrqu->essid.flags = 1; /* active */
6980 } else {
6981 IPW_DEBUG_WX("Getting essid: ANY\n");
6982 wrqu->essid.length = 0;
6983 wrqu->essid.flags = 0; /* active */
6984 }
6985
6986 return 0;
6987}
6988
6989static int ipw2100_wx_set_nick(struct net_device *dev,
6990 struct iw_request_info *info,
6991 union iwreq_data *wrqu, char *extra)
6992{
6993 /*
6994 * This can be called at any time. No action lock required
6995 */
6996
6997 struct ipw2100_priv *priv = libipw_priv(dev);
6998
6999 if (wrqu->data.length > IW_ESSID_MAX_SIZE)
7000 return -E2BIG;
7001
7002 wrqu->data.length = min_t(size_t, wrqu->data.length, sizeof(priv->nick));
7003 memset(priv->nick, 0, sizeof(priv->nick));
7004 memcpy(priv->nick, extra, wrqu->data.length);
7005
7006 IPW_DEBUG_WX("SET Nickname -> %s\n", priv->nick);
7007
7008 return 0;
7009}
7010
7011static int ipw2100_wx_get_nick(struct net_device *dev,
7012 struct iw_request_info *info,
7013 union iwreq_data *wrqu, char *extra)
7014{
7015 /*
7016 * This can be called at any time. No action lock required
7017 */
7018
7019 struct ipw2100_priv *priv = libipw_priv(dev);
7020
7021 wrqu->data.length = strlen(priv->nick);
7022 memcpy(extra, priv->nick, wrqu->data.length);
7023 wrqu->data.flags = 1; /* active */
7024
7025 IPW_DEBUG_WX("GET Nickname -> %s\n", extra);
7026
7027 return 0;
7028}
7029
7030static int ipw2100_wx_set_rate(struct net_device *dev,
7031 struct iw_request_info *info,
7032 union iwreq_data *wrqu, char *extra)
7033{
7034 struct ipw2100_priv *priv = libipw_priv(dev);
7035 u32 target_rate = wrqu->bitrate.value;
7036 u32 rate;
7037 int err = 0;
7038
7039 mutex_lock(&priv->action_mutex);
7040 if (!(priv->status & STATUS_INITIALIZED)) {
7041 err = -EIO;
7042 goto done;
7043 }
7044
7045 rate = 0;
7046
7047 if (target_rate == 1000000 ||
7048 (!wrqu->bitrate.fixed && target_rate > 1000000))
7049 rate |= TX_RATE_1_MBIT;
7050 if (target_rate == 2000000 ||
7051 (!wrqu->bitrate.fixed && target_rate > 2000000))
7052 rate |= TX_RATE_2_MBIT;
7053 if (target_rate == 5500000 ||
7054 (!wrqu->bitrate.fixed && target_rate > 5500000))
7055 rate |= TX_RATE_5_5_MBIT;
7056 if (target_rate == 11000000 ||
7057 (!wrqu->bitrate.fixed && target_rate > 11000000))
7058 rate |= TX_RATE_11_MBIT;
7059 if (rate == 0)
7060 rate = DEFAULT_TX_RATES;
7061
7062 err = ipw2100_set_tx_rates(priv, rate, 0);
7063
7064 IPW_DEBUG_WX("SET Rate -> %04X\n", rate);
7065 done:
7066 mutex_unlock(&priv->action_mutex);
7067 return err;
7068}
7069
7070static int ipw2100_wx_get_rate(struct net_device *dev,
7071 struct iw_request_info *info,
7072 union iwreq_data *wrqu, char *extra)
7073{
7074 struct ipw2100_priv *priv = libipw_priv(dev);
7075 int val;
7076 unsigned int len = sizeof(val);
7077 int err = 0;
7078
7079 if (!(priv->status & STATUS_ENABLED) ||
7080 priv->status & STATUS_RF_KILL_MASK ||
7081 !(priv->status & STATUS_ASSOCIATED)) {
7082 wrqu->bitrate.value = 0;
7083 return 0;
7084 }
7085
7086 mutex_lock(&priv->action_mutex);
7087 if (!(priv->status & STATUS_INITIALIZED)) {
7088 err = -EIO;
7089 goto done;
7090 }
7091
7092 err = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &val, &len);
7093 if (err) {
7094 IPW_DEBUG_WX("failed querying ordinals.\n");
7095 goto done;
7096 }
7097
7098 switch (val & TX_RATE_MASK) {
7099 case TX_RATE_1_MBIT:
7100 wrqu->bitrate.value = 1000000;
7101 break;
7102 case TX_RATE_2_MBIT:
7103 wrqu->bitrate.value = 2000000;
7104 break;
7105 case TX_RATE_5_5_MBIT:
7106 wrqu->bitrate.value = 5500000;
7107 break;
7108 case TX_RATE_11_MBIT:
7109 wrqu->bitrate.value = 11000000;
7110 break;
7111 default:
7112 wrqu->bitrate.value = 0;
7113 }
7114
7115 IPW_DEBUG_WX("GET Rate -> %d\n", wrqu->bitrate.value);
7116
7117 done:
7118 mutex_unlock(&priv->action_mutex);
7119 return err;
7120}
7121
7122static int ipw2100_wx_set_rts(struct net_device *dev,
7123 struct iw_request_info *info,
7124 union iwreq_data *wrqu, char *extra)
7125{
7126 struct ipw2100_priv *priv = libipw_priv(dev);
7127 int value, err;
7128
7129 /* Auto RTS not yet supported */
7130 if (wrqu->rts.fixed == 0)
7131 return -EINVAL;
7132
7133 mutex_lock(&priv->action_mutex);
7134 if (!(priv->status & STATUS_INITIALIZED)) {
7135 err = -EIO;
7136 goto done;
7137 }
7138
7139 if (wrqu->rts.disabled)
7140 value = priv->rts_threshold | RTS_DISABLED;
7141 else {
7142 if (wrqu->rts.value < 1 || wrqu->rts.value > 2304) {
7143 err = -EINVAL;
7144 goto done;
7145 }
7146 value = wrqu->rts.value;
7147 }
7148
7149 err = ipw2100_set_rts_threshold(priv, value);
7150
7151 IPW_DEBUG_WX("SET RTS Threshold -> 0x%08X\n", value);
7152 done:
7153 mutex_unlock(&priv->action_mutex);
7154 return err;
7155}
7156
7157static int ipw2100_wx_get_rts(struct net_device *dev,
7158 struct iw_request_info *info,
7159 union iwreq_data *wrqu, char *extra)
7160{
7161 /*
7162 * This can be called at any time. No action lock required
7163 */
7164
7165 struct ipw2100_priv *priv = libipw_priv(dev);
7166
7167 wrqu->rts.value = priv->rts_threshold & ~RTS_DISABLED;
7168 wrqu->rts.fixed = 1; /* no auto select */
7169
7170 /* If RTS is set to the default value, then it is disabled */
7171 wrqu->rts.disabled = (priv->rts_threshold & RTS_DISABLED) ? 1 : 0;
7172
7173 IPW_DEBUG_WX("GET RTS Threshold -> 0x%08X\n", wrqu->rts.value);
7174
7175 return 0;
7176}
7177
7178static int ipw2100_wx_set_txpow(struct net_device *dev,
7179 struct iw_request_info *info,
7180 union iwreq_data *wrqu, char *extra)
7181{
7182 struct ipw2100_priv *priv = libipw_priv(dev);
7183 int err = 0, value;
7184
7185 if (ipw_radio_kill_sw(priv, wrqu->txpower.disabled))
7186 return -EINPROGRESS;
7187
7188 if (priv->ieee->iw_mode != IW_MODE_ADHOC)
7189 return 0;
7190
7191 if ((wrqu->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
7192 return -EINVAL;
7193
7194 if (wrqu->txpower.fixed == 0)
7195 value = IPW_TX_POWER_DEFAULT;
7196 else {
7197 if (wrqu->txpower.value < IPW_TX_POWER_MIN_DBM ||
7198 wrqu->txpower.value > IPW_TX_POWER_MAX_DBM)
7199 return -EINVAL;
7200
7201 value = wrqu->txpower.value;
7202 }
7203
7204 mutex_lock(&priv->action_mutex);
7205 if (!(priv->status & STATUS_INITIALIZED)) {
7206 err = -EIO;
7207 goto done;
7208 }
7209
7210 err = ipw2100_set_tx_power(priv, value);
7211
7212 IPW_DEBUG_WX("SET TX Power -> %d\n", value);
7213
7214 done:
7215 mutex_unlock(&priv->action_mutex);
7216 return err;
7217}
7218
7219static int ipw2100_wx_get_txpow(struct net_device *dev,
7220 struct iw_request_info *info,
7221 union iwreq_data *wrqu, char *extra)
7222{
7223 /*
7224 * This can be called at any time. No action lock required
7225 */
7226
7227 struct ipw2100_priv *priv = libipw_priv(dev);
7228
7229 wrqu->txpower.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0;
7230
7231 if (priv->tx_power == IPW_TX_POWER_DEFAULT) {
7232 wrqu->txpower.fixed = 0;
7233 wrqu->txpower.value = IPW_TX_POWER_MAX_DBM;
7234 } else {
7235 wrqu->txpower.fixed = 1;
7236 wrqu->txpower.value = priv->tx_power;
7237 }
7238
7239 wrqu->txpower.flags = IW_TXPOW_DBM;
7240
7241 IPW_DEBUG_WX("GET TX Power -> %d\n", wrqu->txpower.value);
7242
7243 return 0;
7244}
7245
7246static int ipw2100_wx_set_frag(struct net_device *dev,
7247 struct iw_request_info *info,
7248 union iwreq_data *wrqu, char *extra)
7249{
7250 /*
7251 * This can be called at any time. No action lock required
7252 */
7253
7254 struct ipw2100_priv *priv = libipw_priv(dev);
7255
7256 if (!wrqu->frag.fixed)
7257 return -EINVAL;
7258
7259 if (wrqu->frag.disabled) {
7260 priv->frag_threshold |= FRAG_DISABLED;
7261 priv->ieee->fts = DEFAULT_FTS;
7262 } else {
7263 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
7264 wrqu->frag.value > MAX_FRAG_THRESHOLD)
7265 return -EINVAL;
7266
7267 priv->ieee->fts = wrqu->frag.value & ~0x1;
7268 priv->frag_threshold = priv->ieee->fts;
7269 }
7270
7271 IPW_DEBUG_WX("SET Frag Threshold -> %d\n", priv->ieee->fts);
7272
7273 return 0;
7274}
7275
7276static int ipw2100_wx_get_frag(struct net_device *dev,
7277 struct iw_request_info *info,
7278 union iwreq_data *wrqu, char *extra)
7279{
7280 /*
7281 * This can be called at any time. No action lock required
7282 */
7283
7284 struct ipw2100_priv *priv = libipw_priv(dev);
7285 wrqu->frag.value = priv->frag_threshold & ~FRAG_DISABLED;
7286 wrqu->frag.fixed = 0; /* no auto select */
7287 wrqu->frag.disabled = (priv->frag_threshold & FRAG_DISABLED) ? 1 : 0;
7288
7289 IPW_DEBUG_WX("GET Frag Threshold -> %d\n", wrqu->frag.value);
7290
7291 return 0;
7292}
7293
7294static int ipw2100_wx_set_retry(struct net_device *dev,
7295 struct iw_request_info *info,
7296 union iwreq_data *wrqu, char *extra)
7297{
7298 struct ipw2100_priv *priv = libipw_priv(dev);
7299 int err = 0;
7300
7301 if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
7302 return -EINVAL;
7303
7304 if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
7305 return 0;
7306
7307 mutex_lock(&priv->action_mutex);
7308 if (!(priv->status & STATUS_INITIALIZED)) {
7309 err = -EIO;
7310 goto done;
7311 }
7312
7313 if (wrqu->retry.flags & IW_RETRY_SHORT) {
7314 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7315 IPW_DEBUG_WX("SET Short Retry Limit -> %d\n",
7316 wrqu->retry.value);
7317 goto done;
7318 }
7319
7320 if (wrqu->retry.flags & IW_RETRY_LONG) {
7321 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7322 IPW_DEBUG_WX("SET Long Retry Limit -> %d\n",
7323 wrqu->retry.value);
7324 goto done;
7325 }
7326
7327 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7328 if (!err)
7329 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7330
7331 IPW_DEBUG_WX("SET Both Retry Limits -> %d\n", wrqu->retry.value);
7332
7333 done:
7334 mutex_unlock(&priv->action_mutex);
7335 return err;
7336}
7337
7338static int ipw2100_wx_get_retry(struct net_device *dev,
7339 struct iw_request_info *info,
7340 union iwreq_data *wrqu, char *extra)
7341{
7342 /*
7343 * This can be called at any time. No action lock required
7344 */
7345
7346 struct ipw2100_priv *priv = libipw_priv(dev);
7347
7348 wrqu->retry.disabled = 0; /* can't be disabled */
7349
7350 if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME)
7351 return -EINVAL;
7352
7353 if (wrqu->retry.flags & IW_RETRY_LONG) {
7354 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
7355 wrqu->retry.value = priv->long_retry_limit;
7356 } else {
7357 wrqu->retry.flags =
7358 (priv->short_retry_limit !=
7359 priv->long_retry_limit) ?
7360 IW_RETRY_LIMIT | IW_RETRY_SHORT : IW_RETRY_LIMIT;
7361
7362 wrqu->retry.value = priv->short_retry_limit;
7363 }
7364
7365 IPW_DEBUG_WX("GET Retry -> %d\n", wrqu->retry.value);
7366
7367 return 0;
7368}
7369
7370static int ipw2100_wx_set_scan(struct net_device *dev,
7371 struct iw_request_info *info,
7372 union iwreq_data *wrqu, char *extra)
7373{
7374 struct ipw2100_priv *priv = libipw_priv(dev);
7375 int err = 0;
7376
7377 mutex_lock(&priv->action_mutex);
7378 if (!(priv->status & STATUS_INITIALIZED)) {
7379 err = -EIO;
7380 goto done;
7381 }
7382
7383 IPW_DEBUG_WX("Initiating scan...\n");
7384
7385 priv->user_requested_scan = 1;
7386 if (ipw2100_set_scan_options(priv) || ipw2100_start_scan(priv)) {
7387 IPW_DEBUG_WX("Start scan failed.\n");
7388
7389 /* TODO: Mark a scan as pending so when hardware initialized
7390 * a scan starts */
7391 }
7392
7393 done:
7394 mutex_unlock(&priv->action_mutex);
7395 return err;
7396}
7397
7398static int ipw2100_wx_get_scan(struct net_device *dev,
7399 struct iw_request_info *info,
7400 union iwreq_data *wrqu, char *extra)
7401{
7402 /*
7403 * This can be called at any time. No action lock required
7404 */
7405
7406 struct ipw2100_priv *priv = libipw_priv(dev);
7407 return libipw_wx_get_scan(priv->ieee, info, wrqu, extra);
7408}
7409
7410/*
7411 * Implementation based on code in hostap-driver v0.1.3 hostap_ioctl.c
7412 */
7413static int ipw2100_wx_set_encode(struct net_device *dev,
7414 struct iw_request_info *info,
7415 union iwreq_data *wrqu, char *key)
7416{
7417 /*
7418 * No check of STATUS_INITIALIZED required
7419 */
7420
7421 struct ipw2100_priv *priv = libipw_priv(dev);
7422 return libipw_wx_set_encode(priv->ieee, info, wrqu, key);
7423}
7424
7425static int ipw2100_wx_get_encode(struct net_device *dev,
7426 struct iw_request_info *info,
7427 union iwreq_data *wrqu, char *key)
7428{
7429 /*
7430 * This can be called at any time. No action lock required
7431 */
7432
7433 struct ipw2100_priv *priv = libipw_priv(dev);
7434 return libipw_wx_get_encode(priv->ieee, info, wrqu, key);
7435}
7436
7437static int ipw2100_wx_set_power(struct net_device *dev,
7438 struct iw_request_info *info,
7439 union iwreq_data *wrqu, char *extra)
7440{
7441 struct ipw2100_priv *priv = libipw_priv(dev);
7442 int err = 0;
7443
7444 mutex_lock(&priv->action_mutex);
7445 if (!(priv->status & STATUS_INITIALIZED)) {
7446 err = -EIO;
7447 goto done;
7448 }
7449
7450 if (wrqu->power.disabled) {
7451 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
7452 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
7453 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
7454 goto done;
7455 }
7456
7457 switch (wrqu->power.flags & IW_POWER_MODE) {
7458 case IW_POWER_ON: /* If not specified */
7459 case IW_POWER_MODE: /* If set all mask */
7460 case IW_POWER_ALL_R: /* If explicitly state all */
7461 break;
7462 default: /* Otherwise we don't support it */
7463 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
7464 wrqu->power.flags);
7465 err = -EOPNOTSUPP;
7466 goto done;
7467 }
7468
7469 /* If the user hasn't specified a power management mode yet, default
7470 * to BATTERY */
7471 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
7472 err = ipw2100_set_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
7473
7474 IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
7475
7476 done:
7477 mutex_unlock(&priv->action_mutex);
7478 return err;
7479
7480}
7481
7482static int ipw2100_wx_get_power(struct net_device *dev,
7483 struct iw_request_info *info,
7484 union iwreq_data *wrqu, char *extra)
7485{
7486 /*
7487 * This can be called at any time. No action lock required
7488 */
7489
7490 struct ipw2100_priv *priv = libipw_priv(dev);
7491
7492 if (!(priv->power_mode & IPW_POWER_ENABLED))
7493 wrqu->power.disabled = 1;
7494 else {
7495 wrqu->power.disabled = 0;
7496 wrqu->power.flags = 0;
7497 }
7498
7499 IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
7500
7501 return 0;
7502}
7503
7504/*
7505 * WE-18 WPA support
7506 */
7507
7508/* SIOCSIWGENIE */
7509static int ipw2100_wx_set_genie(struct net_device *dev,
7510 struct iw_request_info *info,
7511 union iwreq_data *wrqu, char *extra)
7512{
7513
7514 struct ipw2100_priv *priv = libipw_priv(dev);
7515 struct libipw_device *ieee = priv->ieee;
7516 u8 *buf;
7517
7518 if (!ieee->wpa_enabled)
7519 return -EOPNOTSUPP;
7520
7521 if (wrqu->data.length > MAX_WPA_IE_LEN ||
7522 (wrqu->data.length && extra == NULL))
7523 return -EINVAL;
7524
7525 if (wrqu->data.length) {
7526 buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL);
7527 if (buf == NULL)
7528 return -ENOMEM;
7529
7530 kfree(ieee->wpa_ie);
7531 ieee->wpa_ie = buf;
7532 ieee->wpa_ie_len = wrqu->data.length;
7533 } else {
7534 kfree(ieee->wpa_ie);
7535 ieee->wpa_ie = NULL;
7536 ieee->wpa_ie_len = 0;
7537 }
7538
7539 ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
7540
7541 return 0;
7542}
7543
7544/* SIOCGIWGENIE */
7545static int ipw2100_wx_get_genie(struct net_device *dev,
7546 struct iw_request_info *info,
7547 union iwreq_data *wrqu, char *extra)
7548{
7549 struct ipw2100_priv *priv = libipw_priv(dev);
7550 struct libipw_device *ieee = priv->ieee;
7551
7552 if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
7553 wrqu->data.length = 0;
7554 return 0;
7555 }
7556
7557 if (wrqu->data.length < ieee->wpa_ie_len)
7558 return -E2BIG;
7559
7560 wrqu->data.length = ieee->wpa_ie_len;
7561 memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
7562
7563 return 0;
7564}
7565
7566/* SIOCSIWAUTH */
7567static int ipw2100_wx_set_auth(struct net_device *dev,
7568 struct iw_request_info *info,
7569 union iwreq_data *wrqu, char *extra)
7570{
7571 struct ipw2100_priv *priv = libipw_priv(dev);
7572 struct libipw_device *ieee = priv->ieee;
7573 struct iw_param *param = &wrqu->param;
7574 struct lib80211_crypt_data *crypt;
7575 unsigned long flags;
7576 int ret = 0;
7577
7578 switch (param->flags & IW_AUTH_INDEX) {
7579 case IW_AUTH_WPA_VERSION:
7580 case IW_AUTH_CIPHER_PAIRWISE:
7581 case IW_AUTH_CIPHER_GROUP:
7582 case IW_AUTH_KEY_MGMT:
7583 /*
7584 * ipw2200 does not use these parameters
7585 */
7586 break;
7587
7588 case IW_AUTH_TKIP_COUNTERMEASURES:
7589 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
7590 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags)
7591 break;
7592
7593 flags = crypt->ops->get_flags(crypt->priv);
7594
7595 if (param->value)
7596 flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7597 else
7598 flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7599
7600 crypt->ops->set_flags(flags, crypt->priv);
7601
7602 break;
7603
7604 case IW_AUTH_DROP_UNENCRYPTED:{
7605 /* HACK:
7606 *
7607 * wpa_supplicant calls set_wpa_enabled when the driver
7608 * is loaded and unloaded, regardless of if WPA is being
7609 * used. No other calls are made which can be used to
7610 * determine if encryption will be used or not prior to
7611 * association being expected. If encryption is not being
7612 * used, drop_unencrypted is set to false, else true -- we
7613 * can use this to determine if the CAP_PRIVACY_ON bit should
7614 * be set.
7615 */
7616 struct libipw_security sec = {
7617 .flags = SEC_ENABLED,
7618 .enabled = param->value,
7619 };
7620 priv->ieee->drop_unencrypted = param->value;
7621 /* We only change SEC_LEVEL for open mode. Others
7622 * are set by ipw_wpa_set_encryption.
7623 */
7624 if (!param->value) {
7625 sec.flags |= SEC_LEVEL;
7626 sec.level = SEC_LEVEL_0;
7627 } else {
7628 sec.flags |= SEC_LEVEL;
7629 sec.level = SEC_LEVEL_1;
7630 }
7631 if (priv->ieee->set_security)
7632 priv->ieee->set_security(priv->ieee->dev, &sec);
7633 break;
7634 }
7635
7636 case IW_AUTH_80211_AUTH_ALG:
7637 ret = ipw2100_wpa_set_auth_algs(priv, param->value);
7638 break;
7639
7640 case IW_AUTH_WPA_ENABLED:
7641 ret = ipw2100_wpa_enable(priv, param->value);
7642 break;
7643
7644 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7645 ieee->ieee802_1x = param->value;
7646 break;
7647
7648 //case IW_AUTH_ROAMING_CONTROL:
7649 case IW_AUTH_PRIVACY_INVOKED:
7650 ieee->privacy_invoked = param->value;
7651 break;
7652
7653 default:
7654 return -EOPNOTSUPP;
7655 }
7656 return ret;
7657}
7658
7659/* SIOCGIWAUTH */
7660static int ipw2100_wx_get_auth(struct net_device *dev,
7661 struct iw_request_info *info,
7662 union iwreq_data *wrqu, char *extra)
7663{
7664 struct ipw2100_priv *priv = libipw_priv(dev);
7665 struct libipw_device *ieee = priv->ieee;
7666 struct lib80211_crypt_data *crypt;
7667 struct iw_param *param = &wrqu->param;
7668
7669 switch (param->flags & IW_AUTH_INDEX) {
7670 case IW_AUTH_WPA_VERSION:
7671 case IW_AUTH_CIPHER_PAIRWISE:
7672 case IW_AUTH_CIPHER_GROUP:
7673 case IW_AUTH_KEY_MGMT:
7674 /*
7675 * wpa_supplicant will control these internally
7676 */
7677 break;
7678
7679 case IW_AUTH_TKIP_COUNTERMEASURES:
7680 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
7681 if (!crypt || !crypt->ops->get_flags) {
7682 IPW_DEBUG_WARNING("Can't get TKIP countermeasures: "
7683 "crypt not set!\n");
7684 break;
7685 }
7686
7687 param->value = (crypt->ops->get_flags(crypt->priv) &
7688 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
7689
7690 break;
7691
7692 case IW_AUTH_DROP_UNENCRYPTED:
7693 param->value = ieee->drop_unencrypted;
7694 break;
7695
7696 case IW_AUTH_80211_AUTH_ALG:
7697 param->value = priv->ieee->sec.auth_mode;
7698 break;
7699
7700 case IW_AUTH_WPA_ENABLED:
7701 param->value = ieee->wpa_enabled;
7702 break;
7703
7704 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7705 param->value = ieee->ieee802_1x;
7706 break;
7707
7708 case IW_AUTH_ROAMING_CONTROL:
7709 case IW_AUTH_PRIVACY_INVOKED:
7710 param->value = ieee->privacy_invoked;
7711 break;
7712
7713 default:
7714 return -EOPNOTSUPP;
7715 }
7716 return 0;
7717}
7718
7719/* SIOCSIWENCODEEXT */
7720static int ipw2100_wx_set_encodeext(struct net_device *dev,
7721 struct iw_request_info *info,
7722 union iwreq_data *wrqu, char *extra)
7723{
7724 struct ipw2100_priv *priv = libipw_priv(dev);
7725 return libipw_wx_set_encodeext(priv->ieee, info, wrqu, extra);
7726}
7727
7728/* SIOCGIWENCODEEXT */
7729static int ipw2100_wx_get_encodeext(struct net_device *dev,
7730 struct iw_request_info *info,
7731 union iwreq_data *wrqu, char *extra)
7732{
7733 struct ipw2100_priv *priv = libipw_priv(dev);
7734 return libipw_wx_get_encodeext(priv->ieee, info, wrqu, extra);
7735}
7736
7737/* SIOCSIWMLME */
7738static int ipw2100_wx_set_mlme(struct net_device *dev,
7739 struct iw_request_info *info,
7740 union iwreq_data *wrqu, char *extra)
7741{
7742 struct ipw2100_priv *priv = libipw_priv(dev);
7743 struct iw_mlme *mlme = (struct iw_mlme *)extra;
7744
7745 switch (mlme->cmd) {
7746 case IW_MLME_DEAUTH:
7747 // silently ignore
7748 break;
7749
7750 case IW_MLME_DISASSOC:
7751 ipw2100_disassociate_bssid(priv);
7752 break;
7753
7754 default:
7755 return -EOPNOTSUPP;
7756 }
7757 return 0;
7758}
7759
7760/*
7761 *
7762 * IWPRIV handlers
7763 *
7764 */
7765#ifdef CONFIG_IPW2100_MONITOR
7766static int ipw2100_wx_set_promisc(struct net_device *dev,
7767 struct iw_request_info *info,
7768 union iwreq_data *wrqu, char *extra)
7769{
7770 struct ipw2100_priv *priv = libipw_priv(dev);
7771 int *parms = (int *)extra;
7772 int enable = (parms[0] > 0);
7773 int err = 0;
7774
7775 mutex_lock(&priv->action_mutex);
7776 if (!(priv->status & STATUS_INITIALIZED)) {
7777 err = -EIO;
7778 goto done;
7779 }
7780
7781 if (enable) {
7782 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
7783 err = ipw2100_set_channel(priv, parms[1], 0);
7784 goto done;
7785 }
7786 priv->channel = parms[1];
7787 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
7788 } else {
7789 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
7790 err = ipw2100_switch_mode(priv, priv->last_mode);
7791 }
7792 done:
7793 mutex_unlock(&priv->action_mutex);
7794 return err;
7795}
7796
7797static int ipw2100_wx_reset(struct net_device *dev,
7798 struct iw_request_info *info,
7799 union iwreq_data *wrqu, char *extra)
7800{
7801 struct ipw2100_priv *priv = libipw_priv(dev);
7802 if (priv->status & STATUS_INITIALIZED)
7803 schedule_reset(priv);
7804 return 0;
7805}
7806
7807#endif
7808
7809static int ipw2100_wx_set_powermode(struct net_device *dev,
7810 struct iw_request_info *info,
7811 union iwreq_data *wrqu, char *extra)
7812{
7813 struct ipw2100_priv *priv = libipw_priv(dev);
7814 int err = 0, mode = *(int *)extra;
7815
7816 mutex_lock(&priv->action_mutex);
7817 if (!(priv->status & STATUS_INITIALIZED)) {
7818 err = -EIO;
7819 goto done;
7820 }
7821
7822 if ((mode < 0) || (mode > POWER_MODES))
7823 mode = IPW_POWER_AUTO;
7824
7825 if (IPW_POWER_LEVEL(priv->power_mode) != mode)
7826 err = ipw2100_set_power_mode(priv, mode);
7827 done:
7828 mutex_unlock(&priv->action_mutex);
7829 return err;
7830}
7831
7832#define MAX_POWER_STRING 80
7833static int ipw2100_wx_get_powermode(struct net_device *dev,
7834 struct iw_request_info *info,
7835 union iwreq_data *wrqu, char *extra)
7836{
7837 /*
7838 * This can be called at any time. No action lock required
7839 */
7840
7841 struct ipw2100_priv *priv = libipw_priv(dev);
7842 int level = IPW_POWER_LEVEL(priv->power_mode);
7843 s32 timeout, period;
7844
7845 if (!(priv->power_mode & IPW_POWER_ENABLED)) {
7846 snprintf(extra, MAX_POWER_STRING,
7847 "Power save level: %d (Off)", level);
7848 } else {
7849 switch (level) {
7850 case IPW_POWER_MODE_CAM:
7851 snprintf(extra, MAX_POWER_STRING,
7852 "Power save level: %d (None)", level);
7853 break;
7854 case IPW_POWER_AUTO:
7855 snprintf(extra, MAX_POWER_STRING,
7856 "Power save level: %d (Auto)", level);
7857 break;
7858 default:
7859 timeout = timeout_duration[level - 1] / 1000;
7860 period = period_duration[level - 1] / 1000;
7861 snprintf(extra, MAX_POWER_STRING,
7862 "Power save level: %d "
7863 "(Timeout %dms, Period %dms)",
7864 level, timeout, period);
7865 }
7866 }
7867
7868 wrqu->data.length = strlen(extra) + 1;
7869
7870 return 0;
7871}
7872
7873static int ipw2100_wx_set_preamble(struct net_device *dev,
7874 struct iw_request_info *info,
7875 union iwreq_data *wrqu, char *extra)
7876{
7877 struct ipw2100_priv *priv = libipw_priv(dev);
7878 int err, mode = *(int *)extra;
7879
7880 mutex_lock(&priv->action_mutex);
7881 if (!(priv->status & STATUS_INITIALIZED)) {
7882 err = -EIO;
7883 goto done;
7884 }
7885
7886 if (mode == 1)
7887 priv->config |= CFG_LONG_PREAMBLE;
7888 else if (mode == 0)
7889 priv->config &= ~CFG_LONG_PREAMBLE;
7890 else {
7891 err = -EINVAL;
7892 goto done;
7893 }
7894
7895 err = ipw2100_system_config(priv, 0);
7896
7897 done:
7898 mutex_unlock(&priv->action_mutex);
7899 return err;
7900}
7901
7902static int ipw2100_wx_get_preamble(struct net_device *dev,
7903 struct iw_request_info *info,
7904 union iwreq_data *wrqu, char *extra)
7905{
7906 /*
7907 * This can be called at any time. No action lock required
7908 */
7909
7910 struct ipw2100_priv *priv = libipw_priv(dev);
7911
7912 if (priv->config & CFG_LONG_PREAMBLE)
7913 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
7914 else
7915 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
7916
7917 return 0;
7918}
7919
7920#ifdef CONFIG_IPW2100_MONITOR
7921static int ipw2100_wx_set_crc_check(struct net_device *dev,
7922 struct iw_request_info *info,
7923 union iwreq_data *wrqu, char *extra)
7924{
7925 struct ipw2100_priv *priv = libipw_priv(dev);
7926 int err, mode = *(int *)extra;
7927
7928 mutex_lock(&priv->action_mutex);
7929 if (!(priv->status & STATUS_INITIALIZED)) {
7930 err = -EIO;
7931 goto done;
7932 }
7933
7934 if (mode == 1)
7935 priv->config |= CFG_CRC_CHECK;
7936 else if (mode == 0)
7937 priv->config &= ~CFG_CRC_CHECK;
7938 else {
7939 err = -EINVAL;
7940 goto done;
7941 }
7942 err = 0;
7943
7944 done:
7945 mutex_unlock(&priv->action_mutex);
7946 return err;
7947}
7948
7949static int ipw2100_wx_get_crc_check(struct net_device *dev,
7950 struct iw_request_info *info,
7951 union iwreq_data *wrqu, char *extra)
7952{
7953 /*
7954 * This can be called at any time. No action lock required
7955 */
7956
7957 struct ipw2100_priv *priv = libipw_priv(dev);
7958
7959 if (priv->config & CFG_CRC_CHECK)
7960 snprintf(wrqu->name, IFNAMSIZ, "CRC checked (1)");
7961 else
7962 snprintf(wrqu->name, IFNAMSIZ, "CRC ignored (0)");
7963
7964 return 0;
7965}
7966#endif /* CONFIG_IPW2100_MONITOR */
7967
7968static iw_handler ipw2100_wx_handlers[] = {
7969 IW_HANDLER(SIOCGIWNAME, ipw2100_wx_get_name),
7970 IW_HANDLER(SIOCSIWFREQ, ipw2100_wx_set_freq),
7971 IW_HANDLER(SIOCGIWFREQ, ipw2100_wx_get_freq),
7972 IW_HANDLER(SIOCSIWMODE, ipw2100_wx_set_mode),
7973 IW_HANDLER(SIOCGIWMODE, ipw2100_wx_get_mode),
7974 IW_HANDLER(SIOCGIWRANGE, ipw2100_wx_get_range),
7975 IW_HANDLER(SIOCSIWAP, ipw2100_wx_set_wap),
7976 IW_HANDLER(SIOCGIWAP, ipw2100_wx_get_wap),
7977 IW_HANDLER(SIOCSIWMLME, ipw2100_wx_set_mlme),
7978 IW_HANDLER(SIOCSIWSCAN, ipw2100_wx_set_scan),
7979 IW_HANDLER(SIOCGIWSCAN, ipw2100_wx_get_scan),
7980 IW_HANDLER(SIOCSIWESSID, ipw2100_wx_set_essid),
7981 IW_HANDLER(SIOCGIWESSID, ipw2100_wx_get_essid),
7982 IW_HANDLER(SIOCSIWNICKN, ipw2100_wx_set_nick),
7983 IW_HANDLER(SIOCGIWNICKN, ipw2100_wx_get_nick),
7984 IW_HANDLER(SIOCSIWRATE, ipw2100_wx_set_rate),
7985 IW_HANDLER(SIOCGIWRATE, ipw2100_wx_get_rate),
7986 IW_HANDLER(SIOCSIWRTS, ipw2100_wx_set_rts),
7987 IW_HANDLER(SIOCGIWRTS, ipw2100_wx_get_rts),
7988 IW_HANDLER(SIOCSIWFRAG, ipw2100_wx_set_frag),
7989 IW_HANDLER(SIOCGIWFRAG, ipw2100_wx_get_frag),
7990 IW_HANDLER(SIOCSIWTXPOW, ipw2100_wx_set_txpow),
7991 IW_HANDLER(SIOCGIWTXPOW, ipw2100_wx_get_txpow),
7992 IW_HANDLER(SIOCSIWRETRY, ipw2100_wx_set_retry),
7993 IW_HANDLER(SIOCGIWRETRY, ipw2100_wx_get_retry),
7994 IW_HANDLER(SIOCSIWENCODE, ipw2100_wx_set_encode),
7995 IW_HANDLER(SIOCGIWENCODE, ipw2100_wx_get_encode),
7996 IW_HANDLER(SIOCSIWPOWER, ipw2100_wx_set_power),
7997 IW_HANDLER(SIOCGIWPOWER, ipw2100_wx_get_power),
7998 IW_HANDLER(SIOCSIWGENIE, ipw2100_wx_set_genie),
7999 IW_HANDLER(SIOCGIWGENIE, ipw2100_wx_get_genie),
8000 IW_HANDLER(SIOCSIWAUTH, ipw2100_wx_set_auth),
8001 IW_HANDLER(SIOCGIWAUTH, ipw2100_wx_get_auth),
8002 IW_HANDLER(SIOCSIWENCODEEXT, ipw2100_wx_set_encodeext),
8003 IW_HANDLER(SIOCGIWENCODEEXT, ipw2100_wx_get_encodeext),
8004};
8005
8006#define IPW2100_PRIV_SET_MONITOR SIOCIWFIRSTPRIV
8007#define IPW2100_PRIV_RESET SIOCIWFIRSTPRIV+1
8008#define IPW2100_PRIV_SET_POWER SIOCIWFIRSTPRIV+2
8009#define IPW2100_PRIV_GET_POWER SIOCIWFIRSTPRIV+3
8010#define IPW2100_PRIV_SET_LONGPREAMBLE SIOCIWFIRSTPRIV+4
8011#define IPW2100_PRIV_GET_LONGPREAMBLE SIOCIWFIRSTPRIV+5
8012#define IPW2100_PRIV_SET_CRC_CHECK SIOCIWFIRSTPRIV+6
8013#define IPW2100_PRIV_GET_CRC_CHECK SIOCIWFIRSTPRIV+7
8014
8015static const struct iw_priv_args ipw2100_private_args[] = {
8016
8017#ifdef CONFIG_IPW2100_MONITOR
8018 {
8019 IPW2100_PRIV_SET_MONITOR,
8020 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
8021 {
8022 IPW2100_PRIV_RESET,
8023 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
8024#endif /* CONFIG_IPW2100_MONITOR */
8025
8026 {
8027 IPW2100_PRIV_SET_POWER,
8028 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_power"},
8029 {
8030 IPW2100_PRIV_GET_POWER,
8031 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_POWER_STRING,
8032 "get_power"},
8033 {
8034 IPW2100_PRIV_SET_LONGPREAMBLE,
8035 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"},
8036 {
8037 IPW2100_PRIV_GET_LONGPREAMBLE,
8038 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_preamble"},
8039#ifdef CONFIG_IPW2100_MONITOR
8040 {
8041 IPW2100_PRIV_SET_CRC_CHECK,
8042 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_crc_check"},
8043 {
8044 IPW2100_PRIV_GET_CRC_CHECK,
8045 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_crc_check"},
8046#endif /* CONFIG_IPW2100_MONITOR */
8047};
8048
8049static iw_handler ipw2100_private_handler[] = {
8050#ifdef CONFIG_IPW2100_MONITOR
8051 ipw2100_wx_set_promisc,
8052 ipw2100_wx_reset,
8053#else /* CONFIG_IPW2100_MONITOR */
8054 NULL,
8055 NULL,
8056#endif /* CONFIG_IPW2100_MONITOR */
8057 ipw2100_wx_set_powermode,
8058 ipw2100_wx_get_powermode,
8059 ipw2100_wx_set_preamble,
8060 ipw2100_wx_get_preamble,
8061#ifdef CONFIG_IPW2100_MONITOR
8062 ipw2100_wx_set_crc_check,
8063 ipw2100_wx_get_crc_check,
8064#else /* CONFIG_IPW2100_MONITOR */
8065 NULL,
8066 NULL,
8067#endif /* CONFIG_IPW2100_MONITOR */
8068};
8069
8070/*
8071 * Get wireless statistics.
8072 * Called by /proc/net/wireless
8073 * Also called by SIOCGIWSTATS
8074 */
8075static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev)
8076{
8077 enum {
8078 POOR = 30,
8079 FAIR = 60,
8080 GOOD = 80,
8081 VERY_GOOD = 90,
8082 EXCELLENT = 95,
8083 PERFECT = 100
8084 };
8085 int rssi_qual;
8086 int tx_qual;
8087 int beacon_qual;
8088 int quality;
8089
8090 struct ipw2100_priv *priv = libipw_priv(dev);
8091 struct iw_statistics *wstats;
8092 u32 rssi, tx_retries, missed_beacons, tx_failures;
8093 u32 ord_len = sizeof(u32);
8094
8095 if (!priv)
8096 return (struct iw_statistics *)NULL;
8097
8098 wstats = &priv->wstats;
8099
8100 /* if hw is disabled, then ipw2100_get_ordinal() can't be called.
8101 * ipw2100_wx_wireless_stats seems to be called before fw is
8102 * initialized. STATUS_ASSOCIATED will only be set if the hw is up
8103 * and associated; if not associcated, the values are all meaningless
8104 * anyway, so set them all to NULL and INVALID */
8105 if (!(priv->status & STATUS_ASSOCIATED)) {
8106 wstats->miss.beacon = 0;
8107 wstats->discard.retries = 0;
8108 wstats->qual.qual = 0;
8109 wstats->qual.level = 0;
8110 wstats->qual.noise = 0;
8111 wstats->qual.updated = 7;
8112 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
8113 IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
8114 return wstats;
8115 }
8116
8117 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_MISSED_BCNS,
8118 &missed_beacons, &ord_len))
8119 goto fail_get_ordinal;
8120
8121 /* If we don't have a connection the quality and level is 0 */
8122 if (!(priv->status & STATUS_ASSOCIATED)) {
8123 wstats->qual.qual = 0;
8124 wstats->qual.level = 0;
8125 } else {
8126 if (ipw2100_get_ordinal(priv, IPW_ORD_RSSI_AVG_CURR,
8127 &rssi, &ord_len))
8128 goto fail_get_ordinal;
8129 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8130 if (rssi < 10)
8131 rssi_qual = rssi * POOR / 10;
8132 else if (rssi < 15)
8133 rssi_qual = (rssi - 10) * (FAIR - POOR) / 5 + POOR;
8134 else if (rssi < 20)
8135 rssi_qual = (rssi - 15) * (GOOD - FAIR) / 5 + FAIR;
8136 else if (rssi < 30)
8137 rssi_qual = (rssi - 20) * (VERY_GOOD - GOOD) /
8138 10 + GOOD;
8139 else
8140 rssi_qual = (rssi - 30) * (PERFECT - VERY_GOOD) /
8141 10 + VERY_GOOD;
8142
8143 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_RETRIES,
8144 &tx_retries, &ord_len))
8145 goto fail_get_ordinal;
8146
8147 if (tx_retries > 75)
8148 tx_qual = (90 - tx_retries) * POOR / 15;
8149 else if (tx_retries > 70)
8150 tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR;
8151 else if (tx_retries > 65)
8152 tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR;
8153 else if (tx_retries > 50)
8154 tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) /
8155 15 + GOOD;
8156 else
8157 tx_qual = (50 - tx_retries) *
8158 (PERFECT - VERY_GOOD) / 50 + VERY_GOOD;
8159
8160 if (missed_beacons > 50)
8161 beacon_qual = (60 - missed_beacons) * POOR / 10;
8162 else if (missed_beacons > 40)
8163 beacon_qual = (50 - missed_beacons) * (FAIR - POOR) /
8164 10 + POOR;
8165 else if (missed_beacons > 32)
8166 beacon_qual = (40 - missed_beacons) * (GOOD - FAIR) /
8167 18 + FAIR;
8168 else if (missed_beacons > 20)
8169 beacon_qual = (32 - missed_beacons) *
8170 (VERY_GOOD - GOOD) / 20 + GOOD;
8171 else
8172 beacon_qual = (20 - missed_beacons) *
8173 (PERFECT - VERY_GOOD) / 20 + VERY_GOOD;
8174
8175 quality = min(tx_qual, rssi_qual);
8176 quality = min(beacon_qual, quality);
8177
8178#ifdef CONFIG_IPW2100_DEBUG
8179 if (beacon_qual == quality)
8180 IPW_DEBUG_WX("Quality clamped by Missed Beacons\n");
8181 else if (tx_qual == quality)
8182 IPW_DEBUG_WX("Quality clamped by Tx Retries\n");
8183 else if (quality != 100)
8184 IPW_DEBUG_WX("Quality clamped by Signal Strength\n");
8185 else
8186 IPW_DEBUG_WX("Quality not clamped.\n");
8187#endif
8188
8189 wstats->qual.qual = quality;
8190 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8191 }
8192
8193 wstats->qual.noise = 0;
8194 wstats->qual.updated = 7;
8195 wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
8196
8197 /* FIXME: this is percent and not a # */
8198 wstats->miss.beacon = missed_beacons;
8199
8200 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURES,
8201 &tx_failures, &ord_len))
8202 goto fail_get_ordinal;
8203 wstats->discard.retries = tx_failures;
8204
8205 return wstats;
8206
8207 fail_get_ordinal:
8208 IPW_DEBUG_WX("failed querying ordinals.\n");
8209
8210 return (struct iw_statistics *)NULL;
8211}
8212
8213static const struct iw_handler_def ipw2100_wx_handler_def = {
8214 .standard = ipw2100_wx_handlers,
8215 .num_standard = ARRAY_SIZE(ipw2100_wx_handlers),
8216 .num_private = ARRAY_SIZE(ipw2100_private_handler),
8217 .num_private_args = ARRAY_SIZE(ipw2100_private_args),
8218 .private = (iw_handler *) ipw2100_private_handler,
8219 .private_args = (struct iw_priv_args *)ipw2100_private_args,
8220 .get_wireless_stats = ipw2100_wx_wireless_stats,
8221};
8222
8223static void ipw2100_wx_event_work(struct work_struct *work)
8224{
8225 struct ipw2100_priv *priv =
8226 container_of(work, struct ipw2100_priv, wx_event_work.work);
8227 union iwreq_data wrqu;
8228 unsigned int len = ETH_ALEN;
8229
8230 if (priv->status & STATUS_STOPPING)
8231 return;
8232
8233 mutex_lock(&priv->action_mutex);
8234
8235 IPW_DEBUG_WX("enter\n");
8236
8237 mutex_unlock(&priv->action_mutex);
8238
8239 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
8240
8241 /* Fetch BSSID from the hardware */
8242 if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) ||
8243 priv->status & STATUS_RF_KILL_MASK ||
8244 ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
8245 &priv->bssid, &len)) {
8246 eth_zero_addr(wrqu.ap_addr.sa_data);
8247 } else {
8248 /* We now have the BSSID, so can finish setting to the full
8249 * associated state */
8250 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
8251 memcpy(priv->ieee->bssid, priv->bssid, ETH_ALEN);
8252 priv->status &= ~STATUS_ASSOCIATING;
8253 priv->status |= STATUS_ASSOCIATED;
8254 netif_carrier_on(priv->net_dev);
8255 netif_wake_queue(priv->net_dev);
8256 }
8257
8258 if (!(priv->status & STATUS_ASSOCIATED)) {
8259 IPW_DEBUG_WX("Configuring ESSID\n");
8260 mutex_lock(&priv->action_mutex);
8261 /* This is a disassociation event, so kick the firmware to
8262 * look for another AP */
8263 if (priv->config & CFG_STATIC_ESSID)
8264 ipw2100_set_essid(priv, priv->essid, priv->essid_len,
8265 0);
8266 else
8267 ipw2100_set_essid(priv, NULL, 0, 0);
8268 mutex_unlock(&priv->action_mutex);
8269 }
8270
8271 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
8272}
8273
8274#define IPW2100_FW_MAJOR_VERSION 1
8275#define IPW2100_FW_MINOR_VERSION 3
8276
8277#define IPW2100_FW_MINOR(x) ((x & 0xff) >> 8)
8278#define IPW2100_FW_MAJOR(x) (x & 0xff)
8279
8280#define IPW2100_FW_VERSION ((IPW2100_FW_MINOR_VERSION << 8) | \
8281 IPW2100_FW_MAJOR_VERSION)
8282
8283#define IPW2100_FW_PREFIX "ipw2100-" __stringify(IPW2100_FW_MAJOR_VERSION) \
8284"." __stringify(IPW2100_FW_MINOR_VERSION)
8285
8286#define IPW2100_FW_NAME(x) IPW2100_FW_PREFIX "" x ".fw"
8287
8288/*
8289
8290BINARY FIRMWARE HEADER FORMAT
8291
8292offset length desc
82930 2 version
82942 2 mode == 0:BSS,1:IBSS,2:MONITOR
82954 4 fw_len
82968 4 uc_len
8297C fw_len firmware data
829812 + fw_len uc_len microcode data
8299
8300*/
8301
8302struct ipw2100_fw_header {
8303 short version;
8304 short mode;
8305 unsigned int fw_size;
8306 unsigned int uc_size;
8307} __packed;
8308
8309static int ipw2100_mod_firmware_load(struct ipw2100_fw *fw)
8310{
8311 struct ipw2100_fw_header *h =
8312 (struct ipw2100_fw_header *)fw->fw_entry->data;
8313
8314 if (IPW2100_FW_MAJOR(h->version) != IPW2100_FW_MAJOR_VERSION) {
8315 printk(KERN_WARNING DRV_NAME ": Firmware image not compatible "
8316 "(detected version id of %u). "
8317 "See Documentation/networking/device_drivers/wifi/intel/ipw2100.rst\n",
8318 h->version);
8319 return 1;
8320 }
8321
8322 fw->version = h->version;
8323 fw->fw.data = fw->fw_entry->data + sizeof(struct ipw2100_fw_header);
8324 fw->fw.size = h->fw_size;
8325 fw->uc.data = fw->fw.data + h->fw_size;
8326 fw->uc.size = h->uc_size;
8327
8328 return 0;
8329}
8330
8331static int ipw2100_get_firmware(struct ipw2100_priv *priv,
8332 struct ipw2100_fw *fw)
8333{
8334 char *fw_name;
8335 int rc;
8336
8337 IPW_DEBUG_INFO("%s: Using hotplug firmware load.\n",
8338 priv->net_dev->name);
8339
8340 switch (priv->ieee->iw_mode) {
8341 case IW_MODE_ADHOC:
8342 fw_name = IPW2100_FW_NAME("-i");
8343 break;
8344#ifdef CONFIG_IPW2100_MONITOR
8345 case IW_MODE_MONITOR:
8346 fw_name = IPW2100_FW_NAME("-p");
8347 break;
8348#endif
8349 case IW_MODE_INFRA:
8350 default:
8351 fw_name = IPW2100_FW_NAME("");
8352 break;
8353 }
8354
8355 rc = request_firmware(&fw->fw_entry, fw_name, &priv->pci_dev->dev);
8356
8357 if (rc < 0) {
8358 printk(KERN_ERR DRV_NAME ": "
8359 "%s: Firmware '%s' not available or load failed.\n",
8360 priv->net_dev->name, fw_name);
8361 return rc;
8362 }
8363 IPW_DEBUG_INFO("firmware data %p size %zd\n", fw->fw_entry->data,
8364 fw->fw_entry->size);
8365
8366 ipw2100_mod_firmware_load(fw);
8367
8368 return 0;
8369}
8370
8371MODULE_FIRMWARE(IPW2100_FW_NAME("-i"));
8372#ifdef CONFIG_IPW2100_MONITOR
8373MODULE_FIRMWARE(IPW2100_FW_NAME("-p"));
8374#endif
8375MODULE_FIRMWARE(IPW2100_FW_NAME(""));
8376
8377static void ipw2100_release_firmware(struct ipw2100_priv *priv,
8378 struct ipw2100_fw *fw)
8379{
8380 fw->version = 0;
8381 release_firmware(fw->fw_entry);
8382 fw->fw_entry = NULL;
8383}
8384
8385static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
8386 size_t max)
8387{
8388 char ver[MAX_FW_VERSION_LEN];
8389 u32 len = MAX_FW_VERSION_LEN;
8390 u32 tmp;
8391 int i;
8392 /* firmware version is an ascii string (max len of 14) */
8393 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_FW_VER_NUM, ver, &len))
8394 return -EIO;
8395 tmp = max;
8396 if (len >= max)
8397 len = max - 1;
8398 for (i = 0; i < len; i++)
8399 buf[i] = ver[i];
8400 buf[i] = '\0';
8401 return tmp;
8402}
8403
8404/*
8405 * On exit, the firmware will have been freed from the fw list
8406 */
8407static int ipw2100_fw_download(struct ipw2100_priv *priv, struct ipw2100_fw *fw)
8408{
8409 /* firmware is constructed of N contiguous entries, each entry is
8410 * structured as:
8411 *
8412 * offset sie desc
8413 * 0 4 address to write to
8414 * 4 2 length of data run
8415 * 6 length data
8416 */
8417 unsigned int addr;
8418 unsigned short len;
8419
8420 const unsigned char *firmware_data = fw->fw.data;
8421 unsigned int firmware_data_left = fw->fw.size;
8422
8423 while (firmware_data_left > 0) {
8424 addr = *(u32 *) (firmware_data);
8425 firmware_data += 4;
8426 firmware_data_left -= 4;
8427
8428 len = *(u16 *) (firmware_data);
8429 firmware_data += 2;
8430 firmware_data_left -= 2;
8431
8432 if (len > 32) {
8433 printk(KERN_ERR DRV_NAME ": "
8434 "Invalid firmware run-length of %d bytes\n",
8435 len);
8436 return -EINVAL;
8437 }
8438
8439 write_nic_memory(priv->net_dev, addr, len, firmware_data);
8440 firmware_data += len;
8441 firmware_data_left -= len;
8442 }
8443
8444 return 0;
8445}
8446
8447struct symbol_alive_response {
8448 u8 cmd_id;
8449 u8 seq_num;
8450 u8 ucode_rev;
8451 u8 eeprom_valid;
8452 u16 valid_flags;
8453 u8 IEEE_addr[6];
8454 u16 flags;
8455 u16 pcb_rev;
8456 u16 clock_settle_time; // 1us LSB
8457 u16 powerup_settle_time; // 1us LSB
8458 u16 hop_settle_time; // 1us LSB
8459 u8 date[3]; // month, day, year
8460 u8 time[2]; // hours, minutes
8461 u8 ucode_valid;
8462};
8463
8464static int ipw2100_ucode_download(struct ipw2100_priv *priv,
8465 struct ipw2100_fw *fw)
8466{
8467 struct net_device *dev = priv->net_dev;
8468 const unsigned char *microcode_data = fw->uc.data;
8469 unsigned int microcode_data_left = fw->uc.size;
8470 void __iomem *reg = priv->ioaddr;
8471
8472 struct symbol_alive_response response;
8473 int i, j;
8474 u8 data;
8475
8476 /* Symbol control */
8477 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8478 readl(reg);
8479 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8480 readl(reg);
8481
8482 /* HW config */
8483 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */
8484 readl(reg);
8485 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */
8486 readl(reg);
8487
8488 /* EN_CS_ACCESS bit to reset control store pointer */
8489 write_nic_byte(dev, 0x210000, 0x40);
8490 readl(reg);
8491 write_nic_byte(dev, 0x210000, 0x0);
8492 readl(reg);
8493 write_nic_byte(dev, 0x210000, 0x40);
8494 readl(reg);
8495
8496 /* copy microcode from buffer into Symbol */
8497
8498 while (microcode_data_left > 0) {
8499 write_nic_byte(dev, 0x210010, *microcode_data++);
8500 write_nic_byte(dev, 0x210010, *microcode_data++);
8501 microcode_data_left -= 2;
8502 }
8503
8504 /* EN_CS_ACCESS bit to reset the control store pointer */
8505 write_nic_byte(dev, 0x210000, 0x0);
8506 readl(reg);
8507
8508 /* Enable System (Reg 0)
8509 * first enable causes garbage in RX FIFO */
8510 write_nic_byte(dev, 0x210000, 0x0);
8511 readl(reg);
8512 write_nic_byte(dev, 0x210000, 0x80);
8513 readl(reg);
8514
8515 /* Reset External Baseband Reg */
8516 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8517 readl(reg);
8518 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8519 readl(reg);
8520
8521 /* HW Config (Reg 5) */
8522 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16
8523 readl(reg);
8524 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16
8525 readl(reg);
8526
8527 /* Enable System (Reg 0)
8528 * second enable should be OK */
8529 write_nic_byte(dev, 0x210000, 0x00); // clear enable system
8530 readl(reg);
8531 write_nic_byte(dev, 0x210000, 0x80); // set enable system
8532
8533 /* check Symbol is enabled - upped this from 5 as it wasn't always
8534 * catching the update */
8535 for (i = 0; i < 10; i++) {
8536 udelay(10);
8537
8538 /* check Dino is enabled bit */
8539 read_nic_byte(dev, 0x210000, &data);
8540 if (data & 0x1)
8541 break;
8542 }
8543
8544 if (i == 10) {
8545 printk(KERN_ERR DRV_NAME ": %s: Error initializing Symbol\n",
8546 dev->name);
8547 return -EIO;
8548 }
8549
8550 /* Get Symbol alive response */
8551 for (i = 0; i < 30; i++) {
8552 /* Read alive response structure */
8553 for (j = 0;
8554 j < (sizeof(struct symbol_alive_response) >> 1); j++)
8555 read_nic_word(dev, 0x210004, ((u16 *) & response) + j);
8556
8557 if ((response.cmd_id == 1) && (response.ucode_valid == 0x1))
8558 break;
8559 udelay(10);
8560 }
8561
8562 if (i == 30) {
8563 printk(KERN_ERR DRV_NAME
8564 ": %s: No response from Symbol - hw not alive\n",
8565 dev->name);
8566 printk_buf(IPW_DL_ERROR, (u8 *) & response, sizeof(response));
8567 return -EIO;
8568 }
8569
8570 return 0;
8571}
1// SPDX-License-Identifier: GPL-2.0-only
2/******************************************************************************
3
4 Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved.
5
6
7 Contact Information:
8 Intel Linux Wireless <ilw@linux.intel.com>
9 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
10
11 Portions of this file are based on the sample_* files provided by Wireless
12 Extensions 0.26 package and copyright (c) 1997-2003 Jean Tourrilhes
13 <jt@hpl.hp.com>
14
15 Portions of this file are based on the Host AP project,
16 Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
17 <j@w1.fi>
18 Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
19
20 Portions of ipw2100_mod_firmware_load, ipw2100_do_mod_firmware_load, and
21 ipw2100_fw_load are loosely based on drivers/sound/sound_firmware.c
22 available in the 2.4.25 kernel sources, and are copyright (c) Alan Cox
23
24******************************************************************************/
25/*
26
27 Initial driver on which this is based was developed by Janusz Gorycki,
28 Maciej Urbaniak, and Maciej Sosnowski.
29
30 Promiscuous mode support added by Jacek Wysoczynski and Maciej Urbaniak.
31
32Theory of Operation
33
34Tx - Commands and Data
35
36Firmware and host share a circular queue of Transmit Buffer Descriptors (TBDs)
37Each TBD contains a pointer to the physical (dma_addr_t) address of data being
38sent to the firmware as well as the length of the data.
39
40The host writes to the TBD queue at the WRITE index. The WRITE index points
41to the _next_ packet to be written and is advanced when after the TBD has been
42filled.
43
44The firmware pulls from the TBD queue at the READ index. The READ index points
45to the currently being read entry, and is advanced once the firmware is
46done with a packet.
47
48When data is sent to the firmware, the first TBD is used to indicate to the
49firmware if a Command or Data is being sent. If it is Command, all of the
50command information is contained within the physical address referred to by the
51TBD. If it is Data, the first TBD indicates the type of data packet, number
52of fragments, etc. The next TBD then refers to the actual packet location.
53
54The Tx flow cycle is as follows:
55
561) ipw2100_tx() is called by kernel with SKB to transmit
572) Packet is move from the tx_free_list and appended to the transmit pending
58 list (tx_pend_list)
593) work is scheduled to move pending packets into the shared circular queue.
604) when placing packet in the circular queue, the incoming SKB is DMA mapped
61 to a physical address. That address is entered into a TBD. Two TBDs are
62 filled out. The first indicating a data packet, the second referring to the
63 actual payload data.
645) the packet is removed from tx_pend_list and placed on the end of the
65 firmware pending list (fw_pend_list)
666) firmware is notified that the WRITE index has
677) Once the firmware has processed the TBD, INTA is triggered.
688) For each Tx interrupt received from the firmware, the READ index is checked
69 to see which TBDs are done being processed.
709) For each TBD that has been processed, the ISR pulls the oldest packet
71 from the fw_pend_list.
7210)The packet structure contained in the fw_pend_list is then used
73 to unmap the DMA address and to free the SKB originally passed to the driver
74 from the kernel.
7511)The packet structure is placed onto the tx_free_list
76
77The above steps are the same for commands, only the msg_free_list/msg_pend_list
78are used instead of tx_free_list/tx_pend_list
79
80...
81
82Critical Sections / Locking :
83
84There are two locks utilized. The first is the low level lock (priv->low_lock)
85that protects the following:
86
87- Access to the Tx/Rx queue lists via priv->low_lock. The lists are as follows:
88
89 tx_free_list : Holds pre-allocated Tx buffers.
90 TAIL modified in __ipw2100_tx_process()
91 HEAD modified in ipw2100_tx()
92
93 tx_pend_list : Holds used Tx buffers waiting to go into the TBD ring
94 TAIL modified ipw2100_tx()
95 HEAD modified by ipw2100_tx_send_data()
96
97 msg_free_list : Holds pre-allocated Msg (Command) buffers
98 TAIL modified in __ipw2100_tx_process()
99 HEAD modified in ipw2100_hw_send_command()
100
101 msg_pend_list : Holds used Msg buffers waiting to go into the TBD ring
102 TAIL modified in ipw2100_hw_send_command()
103 HEAD modified in ipw2100_tx_send_commands()
104
105 The flow of data on the TX side is as follows:
106
107 MSG_FREE_LIST + COMMAND => MSG_PEND_LIST => TBD => MSG_FREE_LIST
108 TX_FREE_LIST + DATA => TX_PEND_LIST => TBD => TX_FREE_LIST
109
110 The methods that work on the TBD ring are protected via priv->low_lock.
111
112- The internal data state of the device itself
113- Access to the firmware read/write indexes for the BD queues
114 and associated logic
115
116All external entry functions are locked with the priv->action_lock to ensure
117that only one external action is invoked at a time.
118
119
120*/
121
122#include <linux/compiler.h>
123#include <linux/errno.h>
124#include <linux/if_arp.h>
125#include <linux/in6.h>
126#include <linux/in.h>
127#include <linux/ip.h>
128#include <linux/kernel.h>
129#include <linux/kmod.h>
130#include <linux/module.h>
131#include <linux/netdevice.h>
132#include <linux/ethtool.h>
133#include <linux/pci.h>
134#include <linux/dma-mapping.h>
135#include <linux/proc_fs.h>
136#include <linux/skbuff.h>
137#include <linux/uaccess.h>
138#include <asm/io.h>
139#include <linux/fs.h>
140#include <linux/mm.h>
141#include <linux/slab.h>
142#include <linux/unistd.h>
143#include <linux/stringify.h>
144#include <linux/tcp.h>
145#include <linux/types.h>
146#include <linux/time.h>
147#include <linux/firmware.h>
148#include <linux/acpi.h>
149#include <linux/ctype.h>
150#include <linux/pm_qos.h>
151
152#include <net/lib80211.h>
153
154#include "ipw2100.h"
155#include "ipw.h"
156
157#define IPW2100_VERSION "git-1.2.2"
158
159#define DRV_NAME "ipw2100"
160#define DRV_VERSION IPW2100_VERSION
161#define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2100 Network Driver"
162#define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation"
163
164static struct pm_qos_request ipw2100_pm_qos_req;
165
166/* Debugging stuff */
167#ifdef CONFIG_IPW2100_DEBUG
168#define IPW2100_RX_DEBUG /* Reception debugging */
169#endif
170
171MODULE_DESCRIPTION(DRV_DESCRIPTION);
172MODULE_VERSION(DRV_VERSION);
173MODULE_AUTHOR(DRV_COPYRIGHT);
174MODULE_LICENSE("GPL");
175
176static int debug = 0;
177static int network_mode = 0;
178static int channel = 0;
179static int associate = 0;
180static int disable = 0;
181#ifdef CONFIG_PM
182static struct ipw2100_fw ipw2100_firmware;
183#endif
184
185#include <linux/moduleparam.h>
186module_param(debug, int, 0444);
187module_param_named(mode, network_mode, int, 0444);
188module_param(channel, int, 0444);
189module_param(associate, int, 0444);
190module_param(disable, int, 0444);
191
192MODULE_PARM_DESC(debug, "debug level");
193MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
194MODULE_PARM_DESC(channel, "channel");
195MODULE_PARM_DESC(associate, "auto associate when scanning (default off)");
196MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
197
198static u32 ipw2100_debug_level = IPW_DL_NONE;
199
200#ifdef CONFIG_IPW2100_DEBUG
201#define IPW_DEBUG(level, message...) \
202do { \
203 if (ipw2100_debug_level & (level)) { \
204 printk(KERN_DEBUG "ipw2100: %s ", __func__); \
205 printk(message); \
206 } \
207} while (0)
208#else
209#define IPW_DEBUG(level, message...) do {} while (0)
210#endif /* CONFIG_IPW2100_DEBUG */
211
212#ifdef CONFIG_IPW2100_DEBUG
213static const char *command_types[] = {
214 "undefined",
215 "unused", /* HOST_ATTENTION */
216 "HOST_COMPLETE",
217 "unused", /* SLEEP */
218 "unused", /* HOST_POWER_DOWN */
219 "unused",
220 "SYSTEM_CONFIG",
221 "unused", /* SET_IMR */
222 "SSID",
223 "MANDATORY_BSSID",
224 "AUTHENTICATION_TYPE",
225 "ADAPTER_ADDRESS",
226 "PORT_TYPE",
227 "INTERNATIONAL_MODE",
228 "CHANNEL",
229 "RTS_THRESHOLD",
230 "FRAG_THRESHOLD",
231 "POWER_MODE",
232 "TX_RATES",
233 "BASIC_TX_RATES",
234 "WEP_KEY_INFO",
235 "unused",
236 "unused",
237 "unused",
238 "unused",
239 "WEP_KEY_INDEX",
240 "WEP_FLAGS",
241 "ADD_MULTICAST",
242 "CLEAR_ALL_MULTICAST",
243 "BEACON_INTERVAL",
244 "ATIM_WINDOW",
245 "CLEAR_STATISTICS",
246 "undefined",
247 "undefined",
248 "undefined",
249 "undefined",
250 "TX_POWER_INDEX",
251 "undefined",
252 "undefined",
253 "undefined",
254 "undefined",
255 "undefined",
256 "undefined",
257 "BROADCAST_SCAN",
258 "CARD_DISABLE",
259 "PREFERRED_BSSID",
260 "SET_SCAN_OPTIONS",
261 "SCAN_DWELL_TIME",
262 "SWEEP_TABLE",
263 "AP_OR_STATION_TABLE",
264 "GROUP_ORDINALS",
265 "SHORT_RETRY_LIMIT",
266 "LONG_RETRY_LIMIT",
267 "unused", /* SAVE_CALIBRATION */
268 "unused", /* RESTORE_CALIBRATION */
269 "undefined",
270 "undefined",
271 "undefined",
272 "HOST_PRE_POWER_DOWN",
273 "unused", /* HOST_INTERRUPT_COALESCING */
274 "undefined",
275 "CARD_DISABLE_PHY_OFF",
276 "MSDU_TX_RATES",
277 "undefined",
278 "SET_STATION_STAT_BITS",
279 "CLEAR_STATIONS_STAT_BITS",
280 "LEAP_ROGUE_MODE",
281 "SET_SECURITY_INFORMATION",
282 "DISASSOCIATION_BSSID",
283 "SET_WPA_ASS_IE"
284};
285#endif
286
287static const long ipw2100_frequencies[] = {
288 2412, 2417, 2422, 2427,
289 2432, 2437, 2442, 2447,
290 2452, 2457, 2462, 2467,
291 2472, 2484
292};
293
294#define FREQ_COUNT ARRAY_SIZE(ipw2100_frequencies)
295
296static struct ieee80211_rate ipw2100_bg_rates[] = {
297 { .bitrate = 10 },
298 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
299 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
300 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
301};
302
303#define RATE_COUNT ARRAY_SIZE(ipw2100_bg_rates)
304
305/* Pre-decl until we get the code solid and then we can clean it up */
306static void ipw2100_tx_send_commands(struct ipw2100_priv *priv);
307static void ipw2100_tx_send_data(struct ipw2100_priv *priv);
308static int ipw2100_adapter_setup(struct ipw2100_priv *priv);
309
310static void ipw2100_queues_initialize(struct ipw2100_priv *priv);
311static void ipw2100_queues_free(struct ipw2100_priv *priv);
312static int ipw2100_queues_allocate(struct ipw2100_priv *priv);
313
314static int ipw2100_fw_download(struct ipw2100_priv *priv,
315 struct ipw2100_fw *fw);
316static int ipw2100_get_firmware(struct ipw2100_priv *priv,
317 struct ipw2100_fw *fw);
318static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
319 size_t max);
320static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
321 size_t max);
322static void ipw2100_release_firmware(struct ipw2100_priv *priv,
323 struct ipw2100_fw *fw);
324static int ipw2100_ucode_download(struct ipw2100_priv *priv,
325 struct ipw2100_fw *fw);
326static void ipw2100_wx_event_work(struct work_struct *work);
327static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev);
328static const struct iw_handler_def ipw2100_wx_handler_def;
329
330static inline void read_register(struct net_device *dev, u32 reg, u32 * val)
331{
332 struct ipw2100_priv *priv = libipw_priv(dev);
333
334 *val = ioread32(priv->ioaddr + reg);
335 IPW_DEBUG_IO("r: 0x%08X => 0x%08X\n", reg, *val);
336}
337
338static inline void write_register(struct net_device *dev, u32 reg, u32 val)
339{
340 struct ipw2100_priv *priv = libipw_priv(dev);
341
342 iowrite32(val, priv->ioaddr + reg);
343 IPW_DEBUG_IO("w: 0x%08X <= 0x%08X\n", reg, val);
344}
345
346static inline void read_register_word(struct net_device *dev, u32 reg,
347 u16 * val)
348{
349 struct ipw2100_priv *priv = libipw_priv(dev);
350
351 *val = ioread16(priv->ioaddr + reg);
352 IPW_DEBUG_IO("r: 0x%08X => %04X\n", reg, *val);
353}
354
355static inline void read_register_byte(struct net_device *dev, u32 reg, u8 * val)
356{
357 struct ipw2100_priv *priv = libipw_priv(dev);
358
359 *val = ioread8(priv->ioaddr + reg);
360 IPW_DEBUG_IO("r: 0x%08X => %02X\n", reg, *val);
361}
362
363static inline void write_register_word(struct net_device *dev, u32 reg, u16 val)
364{
365 struct ipw2100_priv *priv = libipw_priv(dev);
366
367 iowrite16(val, priv->ioaddr + reg);
368 IPW_DEBUG_IO("w: 0x%08X <= %04X\n", reg, val);
369}
370
371static inline void write_register_byte(struct net_device *dev, u32 reg, u8 val)
372{
373 struct ipw2100_priv *priv = libipw_priv(dev);
374
375 iowrite8(val, priv->ioaddr + reg);
376 IPW_DEBUG_IO("w: 0x%08X =< %02X\n", reg, val);
377}
378
379static inline void read_nic_dword(struct net_device *dev, u32 addr, u32 * val)
380{
381 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
382 addr & IPW_REG_INDIRECT_ADDR_MASK);
383 read_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
384}
385
386static inline void write_nic_dword(struct net_device *dev, u32 addr, u32 val)
387{
388 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
389 addr & IPW_REG_INDIRECT_ADDR_MASK);
390 write_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
391}
392
393static inline void read_nic_word(struct net_device *dev, u32 addr, u16 * val)
394{
395 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
396 addr & IPW_REG_INDIRECT_ADDR_MASK);
397 read_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
398}
399
400static inline void write_nic_word(struct net_device *dev, u32 addr, u16 val)
401{
402 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
403 addr & IPW_REG_INDIRECT_ADDR_MASK);
404 write_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
405}
406
407static inline void read_nic_byte(struct net_device *dev, u32 addr, u8 * val)
408{
409 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
410 addr & IPW_REG_INDIRECT_ADDR_MASK);
411 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
412}
413
414static inline void write_nic_byte(struct net_device *dev, u32 addr, u8 val)
415{
416 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
417 addr & IPW_REG_INDIRECT_ADDR_MASK);
418 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
419}
420
421static void write_nic_memory(struct net_device *dev, u32 addr, u32 len,
422 const u8 * buf)
423{
424 u32 aligned_addr;
425 u32 aligned_len;
426 u32 dif_len;
427 u32 i;
428
429 /* read first nibble byte by byte */
430 aligned_addr = addr & (~0x3);
431 dif_len = addr - aligned_addr;
432 if (dif_len) {
433 /* Start reading at aligned_addr + dif_len */
434 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
435 aligned_addr);
436 for (i = dif_len; i < 4; i++, buf++)
437 write_register_byte(dev,
438 IPW_REG_INDIRECT_ACCESS_DATA + i,
439 *buf);
440
441 len -= dif_len;
442 aligned_addr += 4;
443 }
444
445 /* read DWs through autoincrement registers */
446 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
447 aligned_len = len & (~0x3);
448 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
449 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, *(u32 *) buf);
450
451 /* copy the last nibble */
452 dif_len = len - aligned_len;
453 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
454 for (i = 0; i < dif_len; i++, buf++)
455 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i,
456 *buf);
457}
458
459static void read_nic_memory(struct net_device *dev, u32 addr, u32 len,
460 u8 * buf)
461{
462 u32 aligned_addr;
463 u32 aligned_len;
464 u32 dif_len;
465 u32 i;
466
467 /* read first nibble byte by byte */
468 aligned_addr = addr & (~0x3);
469 dif_len = addr - aligned_addr;
470 if (dif_len) {
471 /* Start reading at aligned_addr + dif_len */
472 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
473 aligned_addr);
474 for (i = dif_len; i < 4; i++, buf++)
475 read_register_byte(dev,
476 IPW_REG_INDIRECT_ACCESS_DATA + i,
477 buf);
478
479 len -= dif_len;
480 aligned_addr += 4;
481 }
482
483 /* read DWs through autoincrement registers */
484 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
485 aligned_len = len & (~0x3);
486 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
487 read_register(dev, IPW_REG_AUTOINCREMENT_DATA, (u32 *) buf);
488
489 /* copy the last nibble */
490 dif_len = len - aligned_len;
491 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
492 for (i = 0; i < dif_len; i++, buf++)
493 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i, buf);
494}
495
496static bool ipw2100_hw_is_adapter_in_system(struct net_device *dev)
497{
498 u32 dbg;
499
500 read_register(dev, IPW_REG_DOA_DEBUG_AREA_START, &dbg);
501
502 return dbg == IPW_DATA_DOA_DEBUG_VALUE;
503}
504
505static int ipw2100_get_ordinal(struct ipw2100_priv *priv, u32 ord,
506 void *val, u32 * len)
507{
508 struct ipw2100_ordinals *ordinals = &priv->ordinals;
509 u32 addr;
510 u32 field_info;
511 u16 field_len;
512 u16 field_count;
513 u32 total_length;
514
515 if (ordinals->table1_addr == 0) {
516 printk(KERN_WARNING DRV_NAME ": attempt to use fw ordinals "
517 "before they have been loaded.\n");
518 return -EINVAL;
519 }
520
521 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
522 if (*len < IPW_ORD_TAB_1_ENTRY_SIZE) {
523 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
524
525 printk(KERN_WARNING DRV_NAME
526 ": ordinal buffer length too small, need %zd\n",
527 IPW_ORD_TAB_1_ENTRY_SIZE);
528
529 return -EINVAL;
530 }
531
532 read_nic_dword(priv->net_dev,
533 ordinals->table1_addr + (ord << 2), &addr);
534 read_nic_dword(priv->net_dev, addr, val);
535
536 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
537
538 return 0;
539 }
540
541 if (IS_ORDINAL_TABLE_TWO(ordinals, ord)) {
542
543 ord -= IPW_START_ORD_TAB_2;
544
545 /* get the address of statistic */
546 read_nic_dword(priv->net_dev,
547 ordinals->table2_addr + (ord << 3), &addr);
548
549 /* get the second DW of statistics ;
550 * two 16-bit words - first is length, second is count */
551 read_nic_dword(priv->net_dev,
552 ordinals->table2_addr + (ord << 3) + sizeof(u32),
553 &field_info);
554
555 /* get each entry length */
556 field_len = *((u16 *) & field_info);
557
558 /* get number of entries */
559 field_count = *(((u16 *) & field_info) + 1);
560
561 /* abort if no enough memory */
562 total_length = field_len * field_count;
563 if (total_length > *len) {
564 *len = total_length;
565 return -EINVAL;
566 }
567
568 *len = total_length;
569 if (!total_length)
570 return 0;
571
572 /* read the ordinal data from the SRAM */
573 read_nic_memory(priv->net_dev, addr, total_length, val);
574
575 return 0;
576 }
577
578 printk(KERN_WARNING DRV_NAME ": ordinal %d neither in table 1 nor "
579 "in table 2\n", ord);
580
581 return -EINVAL;
582}
583
584static int ipw2100_set_ordinal(struct ipw2100_priv *priv, u32 ord, u32 * val,
585 u32 * len)
586{
587 struct ipw2100_ordinals *ordinals = &priv->ordinals;
588 u32 addr;
589
590 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
591 if (*len != IPW_ORD_TAB_1_ENTRY_SIZE) {
592 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
593 IPW_DEBUG_INFO("wrong size\n");
594 return -EINVAL;
595 }
596
597 read_nic_dword(priv->net_dev,
598 ordinals->table1_addr + (ord << 2), &addr);
599
600 write_nic_dword(priv->net_dev, addr, *val);
601
602 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
603
604 return 0;
605 }
606
607 IPW_DEBUG_INFO("wrong table\n");
608 if (IS_ORDINAL_TABLE_TWO(ordinals, ord))
609 return -EINVAL;
610
611 return -EINVAL;
612}
613
614static char *snprint_line(char *buf, size_t count,
615 const u8 * data, u32 len, u32 ofs)
616{
617 int out, i, j, l;
618 char c;
619
620 out = scnprintf(buf, count, "%08X", ofs);
621
622 for (l = 0, i = 0; i < 2; i++) {
623 out += scnprintf(buf + out, count - out, " ");
624 for (j = 0; j < 8 && l < len; j++, l++)
625 out += scnprintf(buf + out, count - out, "%02X ",
626 data[(i * 8 + j)]);
627 for (; j < 8; j++)
628 out += scnprintf(buf + out, count - out, " ");
629 }
630
631 out += scnprintf(buf + out, count - out, " ");
632 for (l = 0, i = 0; i < 2; i++) {
633 out += scnprintf(buf + out, count - out, " ");
634 for (j = 0; j < 8 && l < len; j++, l++) {
635 c = data[(i * 8 + j)];
636 if (!isascii(c) || !isprint(c))
637 c = '.';
638
639 out += scnprintf(buf + out, count - out, "%c", c);
640 }
641
642 for (; j < 8; j++)
643 out += scnprintf(buf + out, count - out, " ");
644 }
645
646 return buf;
647}
648
649static void printk_buf(int level, const u8 * data, u32 len)
650{
651 char line[81];
652 u32 ofs = 0;
653 if (!(ipw2100_debug_level & level))
654 return;
655
656 while (len) {
657 printk(KERN_DEBUG "%s\n",
658 snprint_line(line, sizeof(line), &data[ofs],
659 min(len, 16U), ofs));
660 ofs += 16;
661 len -= min(len, 16U);
662 }
663}
664
665#define MAX_RESET_BACKOFF 10
666
667static void schedule_reset(struct ipw2100_priv *priv)
668{
669 time64_t now = ktime_get_boottime_seconds();
670
671 /* If we haven't received a reset request within the backoff period,
672 * then we can reset the backoff interval so this reset occurs
673 * immediately */
674 if (priv->reset_backoff &&
675 (now - priv->last_reset > priv->reset_backoff))
676 priv->reset_backoff = 0;
677
678 priv->last_reset = now;
679
680 if (!(priv->status & STATUS_RESET_PENDING)) {
681 IPW_DEBUG_INFO("%s: Scheduling firmware restart (%llds).\n",
682 priv->net_dev->name, priv->reset_backoff);
683 netif_carrier_off(priv->net_dev);
684 netif_stop_queue(priv->net_dev);
685 priv->status |= STATUS_RESET_PENDING;
686 if (priv->reset_backoff)
687 schedule_delayed_work(&priv->reset_work,
688 priv->reset_backoff * HZ);
689 else
690 schedule_delayed_work(&priv->reset_work, 0);
691
692 if (priv->reset_backoff < MAX_RESET_BACKOFF)
693 priv->reset_backoff++;
694
695 wake_up_interruptible(&priv->wait_command_queue);
696 } else
697 IPW_DEBUG_INFO("%s: Firmware restart already in progress.\n",
698 priv->net_dev->name);
699
700}
701
702#define HOST_COMPLETE_TIMEOUT (2 * HZ)
703static int ipw2100_hw_send_command(struct ipw2100_priv *priv,
704 struct host_command *cmd)
705{
706 struct list_head *element;
707 struct ipw2100_tx_packet *packet;
708 unsigned long flags;
709 int err = 0;
710
711 IPW_DEBUG_HC("Sending %s command (#%d), %d bytes\n",
712 command_types[cmd->host_command], cmd->host_command,
713 cmd->host_command_length);
714 printk_buf(IPW_DL_HC, (u8 *) cmd->host_command_parameters,
715 cmd->host_command_length);
716
717 spin_lock_irqsave(&priv->low_lock, flags);
718
719 if (priv->fatal_error) {
720 IPW_DEBUG_INFO
721 ("Attempt to send command while hardware in fatal error condition.\n");
722 err = -EIO;
723 goto fail_unlock;
724 }
725
726 if (!(priv->status & STATUS_RUNNING)) {
727 IPW_DEBUG_INFO
728 ("Attempt to send command while hardware is not running.\n");
729 err = -EIO;
730 goto fail_unlock;
731 }
732
733 if (priv->status & STATUS_CMD_ACTIVE) {
734 IPW_DEBUG_INFO
735 ("Attempt to send command while another command is pending.\n");
736 err = -EBUSY;
737 goto fail_unlock;
738 }
739
740 if (list_empty(&priv->msg_free_list)) {
741 IPW_DEBUG_INFO("no available msg buffers\n");
742 goto fail_unlock;
743 }
744
745 priv->status |= STATUS_CMD_ACTIVE;
746 priv->messages_sent++;
747
748 element = priv->msg_free_list.next;
749
750 packet = list_entry(element, struct ipw2100_tx_packet, list);
751 packet->jiffy_start = jiffies;
752
753 /* initialize the firmware command packet */
754 packet->info.c_struct.cmd->host_command_reg = cmd->host_command;
755 packet->info.c_struct.cmd->host_command_reg1 = cmd->host_command1;
756 packet->info.c_struct.cmd->host_command_len_reg =
757 cmd->host_command_length;
758 packet->info.c_struct.cmd->sequence = cmd->host_command_sequence;
759
760 memcpy(packet->info.c_struct.cmd->host_command_params_reg,
761 cmd->host_command_parameters,
762 sizeof(packet->info.c_struct.cmd->host_command_params_reg));
763
764 list_del(element);
765 DEC_STAT(&priv->msg_free_stat);
766
767 list_add_tail(element, &priv->msg_pend_list);
768 INC_STAT(&priv->msg_pend_stat);
769
770 ipw2100_tx_send_commands(priv);
771 ipw2100_tx_send_data(priv);
772
773 spin_unlock_irqrestore(&priv->low_lock, flags);
774
775 /*
776 * We must wait for this command to complete before another
777 * command can be sent... but if we wait more than 3 seconds
778 * then there is a problem.
779 */
780
781 err =
782 wait_event_interruptible_timeout(priv->wait_command_queue,
783 !(priv->
784 status & STATUS_CMD_ACTIVE),
785 HOST_COMPLETE_TIMEOUT);
786
787 if (err == 0) {
788 IPW_DEBUG_INFO("Command completion failed out after %dms.\n",
789 1000 * (HOST_COMPLETE_TIMEOUT / HZ));
790 priv->fatal_error = IPW2100_ERR_MSG_TIMEOUT;
791 priv->status &= ~STATUS_CMD_ACTIVE;
792 schedule_reset(priv);
793 return -EIO;
794 }
795
796 if (priv->fatal_error) {
797 printk(KERN_WARNING DRV_NAME ": %s: firmware fatal error\n",
798 priv->net_dev->name);
799 return -EIO;
800 }
801
802 /* !!!!! HACK TEST !!!!!
803 * When lots of debug trace statements are enabled, the driver
804 * doesn't seem to have as many firmware restart cycles...
805 *
806 * As a test, we're sticking in a 1/100s delay here */
807 schedule_timeout_uninterruptible(msecs_to_jiffies(10));
808
809 return 0;
810
811 fail_unlock:
812 spin_unlock_irqrestore(&priv->low_lock, flags);
813
814 return err;
815}
816
817/*
818 * Verify the values and data access of the hardware
819 * No locks needed or used. No functions called.
820 */
821static int ipw2100_verify(struct ipw2100_priv *priv)
822{
823 u32 data1, data2;
824 u32 address;
825
826 u32 val1 = 0x76543210;
827 u32 val2 = 0xFEDCBA98;
828
829 /* Domain 0 check - all values should be DOA_DEBUG */
830 for (address = IPW_REG_DOA_DEBUG_AREA_START;
831 address < IPW_REG_DOA_DEBUG_AREA_END; address += sizeof(u32)) {
832 read_register(priv->net_dev, address, &data1);
833 if (data1 != IPW_DATA_DOA_DEBUG_VALUE)
834 return -EIO;
835 }
836
837 /* Domain 1 check - use arbitrary read/write compare */
838 for (address = 0; address < 5; address++) {
839 /* The memory area is not used now */
840 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
841 val1);
842 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
843 val2);
844 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
845 &data1);
846 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
847 &data2);
848 if (val1 == data1 && val2 == data2)
849 return 0;
850 }
851
852 return -EIO;
853}
854
855/*
856 *
857 * Loop until the CARD_DISABLED bit is the same value as the
858 * supplied parameter
859 *
860 * TODO: See if it would be more efficient to do a wait/wake
861 * cycle and have the completion event trigger the wakeup
862 *
863 */
864#define IPW_CARD_DISABLE_COMPLETE_WAIT 100 // 100 milli
865static int ipw2100_wait_for_card_state(struct ipw2100_priv *priv, int state)
866{
867 int i;
868 u32 card_state;
869 u32 len = sizeof(card_state);
870 int err;
871
872 for (i = 0; i <= IPW_CARD_DISABLE_COMPLETE_WAIT * 1000; i += 50) {
873 err = ipw2100_get_ordinal(priv, IPW_ORD_CARD_DISABLED,
874 &card_state, &len);
875 if (err) {
876 IPW_DEBUG_INFO("Query of CARD_DISABLED ordinal "
877 "failed.\n");
878 return 0;
879 }
880
881 /* We'll break out if either the HW state says it is
882 * in the state we want, or if HOST_COMPLETE command
883 * finishes */
884 if ((card_state == state) ||
885 ((priv->status & STATUS_ENABLED) ?
886 IPW_HW_STATE_ENABLED : IPW_HW_STATE_DISABLED) == state) {
887 if (state == IPW_HW_STATE_ENABLED)
888 priv->status |= STATUS_ENABLED;
889 else
890 priv->status &= ~STATUS_ENABLED;
891
892 return 0;
893 }
894
895 udelay(50);
896 }
897
898 IPW_DEBUG_INFO("ipw2100_wait_for_card_state to %s state timed out\n",
899 state ? "DISABLED" : "ENABLED");
900 return -EIO;
901}
902
903/*********************************************************************
904 Procedure : sw_reset_and_clock
905 Purpose : Asserts s/w reset, asserts clock initialization
906 and waits for clock stabilization
907 ********************************************************************/
908static int sw_reset_and_clock(struct ipw2100_priv *priv)
909{
910 int i;
911 u32 r;
912
913 // assert s/w reset
914 write_register(priv->net_dev, IPW_REG_RESET_REG,
915 IPW_AUX_HOST_RESET_REG_SW_RESET);
916
917 // wait for clock stabilization
918 for (i = 0; i < 1000; i++) {
919 udelay(IPW_WAIT_RESET_ARC_COMPLETE_DELAY);
920
921 // check clock ready bit
922 read_register(priv->net_dev, IPW_REG_RESET_REG, &r);
923 if (r & IPW_AUX_HOST_RESET_REG_PRINCETON_RESET)
924 break;
925 }
926
927 if (i == 1000)
928 return -EIO; // TODO: better error value
929
930 /* set "initialization complete" bit to move adapter to
931 * D0 state */
932 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
933 IPW_AUX_HOST_GP_CNTRL_BIT_INIT_DONE);
934
935 /* wait for clock stabilization */
936 for (i = 0; i < 10000; i++) {
937 udelay(IPW_WAIT_CLOCK_STABILIZATION_DELAY * 4);
938
939 /* check clock ready bit */
940 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
941 if (r & IPW_AUX_HOST_GP_CNTRL_BIT_CLOCK_READY)
942 break;
943 }
944
945 if (i == 10000)
946 return -EIO; /* TODO: better error value */
947
948 /* set D0 standby bit */
949 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
950 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
951 r | IPW_AUX_HOST_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
952
953 return 0;
954}
955
956/*********************************************************************
957 Procedure : ipw2100_download_firmware
958 Purpose : Initiaze adapter after power on.
959 The sequence is:
960 1. assert s/w reset first!
961 2. awake clocks & wait for clock stabilization
962 3. hold ARC (don't ask me why...)
963 4. load Dino ucode and reset/clock init again
964 5. zero-out shared mem
965 6. download f/w
966 *******************************************************************/
967static int ipw2100_download_firmware(struct ipw2100_priv *priv)
968{
969 u32 address;
970 int err;
971
972#ifndef CONFIG_PM
973 /* Fetch the firmware and microcode */
974 struct ipw2100_fw ipw2100_firmware;
975#endif
976
977 if (priv->fatal_error) {
978 IPW_DEBUG_ERROR("%s: ipw2100_download_firmware called after "
979 "fatal error %d. Interface must be brought down.\n",
980 priv->net_dev->name, priv->fatal_error);
981 return -EINVAL;
982 }
983#ifdef CONFIG_PM
984 if (!ipw2100_firmware.version) {
985 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
986 if (err) {
987 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
988 priv->net_dev->name, err);
989 priv->fatal_error = IPW2100_ERR_FW_LOAD;
990 goto fail;
991 }
992 }
993#else
994 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
995 if (err) {
996 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
997 priv->net_dev->name, err);
998 priv->fatal_error = IPW2100_ERR_FW_LOAD;
999 goto fail;
1000 }
1001#endif
1002 priv->firmware_version = ipw2100_firmware.version;
1003
1004 /* s/w reset and clock stabilization */
1005 err = sw_reset_and_clock(priv);
1006 if (err) {
1007 IPW_DEBUG_ERROR("%s: sw_reset_and_clock failed: %d\n",
1008 priv->net_dev->name, err);
1009 goto fail;
1010 }
1011
1012 err = ipw2100_verify(priv);
1013 if (err) {
1014 IPW_DEBUG_ERROR("%s: ipw2100_verify failed: %d\n",
1015 priv->net_dev->name, err);
1016 goto fail;
1017 }
1018
1019 /* Hold ARC */
1020 write_nic_dword(priv->net_dev,
1021 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x80000000);
1022
1023 /* allow ARC to run */
1024 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1025
1026 /* load microcode */
1027 err = ipw2100_ucode_download(priv, &ipw2100_firmware);
1028 if (err) {
1029 printk(KERN_ERR DRV_NAME ": %s: Error loading microcode: %d\n",
1030 priv->net_dev->name, err);
1031 goto fail;
1032 }
1033
1034 /* release ARC */
1035 write_nic_dword(priv->net_dev,
1036 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x00000000);
1037
1038 /* s/w reset and clock stabilization (again!!!) */
1039 err = sw_reset_and_clock(priv);
1040 if (err) {
1041 printk(KERN_ERR DRV_NAME
1042 ": %s: sw_reset_and_clock failed: %d\n",
1043 priv->net_dev->name, err);
1044 goto fail;
1045 }
1046
1047 /* load f/w */
1048 err = ipw2100_fw_download(priv, &ipw2100_firmware);
1049 if (err) {
1050 IPW_DEBUG_ERROR("%s: Error loading firmware: %d\n",
1051 priv->net_dev->name, err);
1052 goto fail;
1053 }
1054#ifndef CONFIG_PM
1055 /*
1056 * When the .resume method of the driver is called, the other
1057 * part of the system, i.e. the ide driver could still stay in
1058 * the suspend stage. This prevents us from loading the firmware
1059 * from the disk. --YZ
1060 */
1061
1062 /* free any storage allocated for firmware image */
1063 ipw2100_release_firmware(priv, &ipw2100_firmware);
1064#endif
1065
1066 /* zero out Domain 1 area indirectly (Si requirement) */
1067 for (address = IPW_HOST_FW_SHARED_AREA0;
1068 address < IPW_HOST_FW_SHARED_AREA0_END; address += 4)
1069 write_nic_dword(priv->net_dev, address, 0);
1070 for (address = IPW_HOST_FW_SHARED_AREA1;
1071 address < IPW_HOST_FW_SHARED_AREA1_END; address += 4)
1072 write_nic_dword(priv->net_dev, address, 0);
1073 for (address = IPW_HOST_FW_SHARED_AREA2;
1074 address < IPW_HOST_FW_SHARED_AREA2_END; address += 4)
1075 write_nic_dword(priv->net_dev, address, 0);
1076 for (address = IPW_HOST_FW_SHARED_AREA3;
1077 address < IPW_HOST_FW_SHARED_AREA3_END; address += 4)
1078 write_nic_dword(priv->net_dev, address, 0);
1079 for (address = IPW_HOST_FW_INTERRUPT_AREA;
1080 address < IPW_HOST_FW_INTERRUPT_AREA_END; address += 4)
1081 write_nic_dword(priv->net_dev, address, 0);
1082
1083 return 0;
1084
1085 fail:
1086 ipw2100_release_firmware(priv, &ipw2100_firmware);
1087 return err;
1088}
1089
1090static inline void ipw2100_enable_interrupts(struct ipw2100_priv *priv)
1091{
1092 if (priv->status & STATUS_INT_ENABLED)
1093 return;
1094 priv->status |= STATUS_INT_ENABLED;
1095 write_register(priv->net_dev, IPW_REG_INTA_MASK, IPW_INTERRUPT_MASK);
1096}
1097
1098static inline void ipw2100_disable_interrupts(struct ipw2100_priv *priv)
1099{
1100 if (!(priv->status & STATUS_INT_ENABLED))
1101 return;
1102 priv->status &= ~STATUS_INT_ENABLED;
1103 write_register(priv->net_dev, IPW_REG_INTA_MASK, 0x0);
1104}
1105
1106static void ipw2100_initialize_ordinals(struct ipw2100_priv *priv)
1107{
1108 struct ipw2100_ordinals *ord = &priv->ordinals;
1109
1110 IPW_DEBUG_INFO("enter\n");
1111
1112 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_1,
1113 &ord->table1_addr);
1114
1115 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_2,
1116 &ord->table2_addr);
1117
1118 read_nic_dword(priv->net_dev, ord->table1_addr, &ord->table1_size);
1119 read_nic_dword(priv->net_dev, ord->table2_addr, &ord->table2_size);
1120
1121 ord->table2_size &= 0x0000FFFF;
1122
1123 IPW_DEBUG_INFO("table 1 size: %d\n", ord->table1_size);
1124 IPW_DEBUG_INFO("table 2 size: %d\n", ord->table2_size);
1125 IPW_DEBUG_INFO("exit\n");
1126}
1127
1128static inline void ipw2100_hw_set_gpio(struct ipw2100_priv *priv)
1129{
1130 u32 reg = 0;
1131 /*
1132 * Set GPIO 3 writable by FW; GPIO 1 writable
1133 * by driver and enable clock
1134 */
1135 reg = (IPW_BIT_GPIO_GPIO3_MASK | IPW_BIT_GPIO_GPIO1_ENABLE |
1136 IPW_BIT_GPIO_LED_OFF);
1137 write_register(priv->net_dev, IPW_REG_GPIO, reg);
1138}
1139
1140static int rf_kill_active(struct ipw2100_priv *priv)
1141{
1142#define MAX_RF_KILL_CHECKS 5
1143#define RF_KILL_CHECK_DELAY 40
1144
1145 unsigned short value = 0;
1146 u32 reg = 0;
1147 int i;
1148
1149 if (!(priv->hw_features & HW_FEATURE_RFKILL)) {
1150 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1151 priv->status &= ~STATUS_RF_KILL_HW;
1152 return 0;
1153 }
1154
1155 for (i = 0; i < MAX_RF_KILL_CHECKS; i++) {
1156 udelay(RF_KILL_CHECK_DELAY);
1157 read_register(priv->net_dev, IPW_REG_GPIO, ®);
1158 value = (value << 1) | ((reg & IPW_BIT_GPIO_RF_KILL) ? 0 : 1);
1159 }
1160
1161 if (value == 0) {
1162 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
1163 priv->status |= STATUS_RF_KILL_HW;
1164 } else {
1165 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1166 priv->status &= ~STATUS_RF_KILL_HW;
1167 }
1168
1169 return (value == 0);
1170}
1171
1172static int ipw2100_get_hw_features(struct ipw2100_priv *priv)
1173{
1174 u32 addr, len;
1175 u32 val;
1176
1177 /*
1178 * EEPROM_SRAM_DB_START_ADDRESS using ordinal in ordinal table 1
1179 */
1180 len = sizeof(addr);
1181 if (ipw2100_get_ordinal
1182 (priv, IPW_ORD_EEPROM_SRAM_DB_BLOCK_START_ADDRESS, &addr, &len)) {
1183 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1184 __LINE__);
1185 return -EIO;
1186 }
1187
1188 IPW_DEBUG_INFO("EEPROM address: %08X\n", addr);
1189
1190 /*
1191 * EEPROM version is the byte at offset 0xfd in firmware
1192 * We read 4 bytes, then shift out the byte we actually want */
1193 read_nic_dword(priv->net_dev, addr + 0xFC, &val);
1194 priv->eeprom_version = (val >> 24) & 0xFF;
1195 IPW_DEBUG_INFO("EEPROM version: %d\n", priv->eeprom_version);
1196
1197 /*
1198 * HW RF Kill enable is bit 0 in byte at offset 0x21 in firmware
1199 *
1200 * notice that the EEPROM bit is reverse polarity, i.e.
1201 * bit = 0 signifies HW RF kill switch is supported
1202 * bit = 1 signifies HW RF kill switch is NOT supported
1203 */
1204 read_nic_dword(priv->net_dev, addr + 0x20, &val);
1205 if (!((val >> 24) & 0x01))
1206 priv->hw_features |= HW_FEATURE_RFKILL;
1207
1208 IPW_DEBUG_INFO("HW RF Kill: %ssupported.\n",
1209 (priv->hw_features & HW_FEATURE_RFKILL) ? "" : "not ");
1210
1211 return 0;
1212}
1213
1214/*
1215 * Start firmware execution after power on and initialization
1216 * The sequence is:
1217 * 1. Release ARC
1218 * 2. Wait for f/w initialization completes;
1219 */
1220static int ipw2100_start_adapter(struct ipw2100_priv *priv)
1221{
1222 int i;
1223 u32 inta, inta_mask, gpio;
1224
1225 IPW_DEBUG_INFO("enter\n");
1226
1227 if (priv->status & STATUS_RUNNING)
1228 return 0;
1229
1230 /*
1231 * Initialize the hw - drive adapter to DO state by setting
1232 * init_done bit. Wait for clk_ready bit and Download
1233 * fw & dino ucode
1234 */
1235 if (ipw2100_download_firmware(priv)) {
1236 printk(KERN_ERR DRV_NAME
1237 ": %s: Failed to power on the adapter.\n",
1238 priv->net_dev->name);
1239 return -EIO;
1240 }
1241
1242 /* Clear the Tx, Rx and Msg queues and the r/w indexes
1243 * in the firmware RBD and TBD ring queue */
1244 ipw2100_queues_initialize(priv);
1245
1246 ipw2100_hw_set_gpio(priv);
1247
1248 /* TODO -- Look at disabling interrupts here to make sure none
1249 * get fired during FW initialization */
1250
1251 /* Release ARC - clear reset bit */
1252 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1253
1254 /* wait for f/w initialization complete */
1255 IPW_DEBUG_FW("Waiting for f/w initialization to complete...\n");
1256 i = 5000;
1257 do {
1258 schedule_timeout_uninterruptible(msecs_to_jiffies(40));
1259 /* Todo... wait for sync command ... */
1260
1261 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1262
1263 /* check "init done" bit */
1264 if (inta & IPW2100_INTA_FW_INIT_DONE) {
1265 /* reset "init done" bit */
1266 write_register(priv->net_dev, IPW_REG_INTA,
1267 IPW2100_INTA_FW_INIT_DONE);
1268 break;
1269 }
1270
1271 /* check error conditions : we check these after the firmware
1272 * check so that if there is an error, the interrupt handler
1273 * will see it and the adapter will be reset */
1274 if (inta &
1275 (IPW2100_INTA_FATAL_ERROR | IPW2100_INTA_PARITY_ERROR)) {
1276 /* clear error conditions */
1277 write_register(priv->net_dev, IPW_REG_INTA,
1278 IPW2100_INTA_FATAL_ERROR |
1279 IPW2100_INTA_PARITY_ERROR);
1280 }
1281 } while (--i);
1282
1283 /* Clear out any pending INTAs since we aren't supposed to have
1284 * interrupts enabled at this point... */
1285 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1286 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
1287 inta &= IPW_INTERRUPT_MASK;
1288 /* Clear out any pending interrupts */
1289 if (inta & inta_mask)
1290 write_register(priv->net_dev, IPW_REG_INTA, inta);
1291
1292 IPW_DEBUG_FW("f/w initialization complete: %s\n",
1293 i ? "SUCCESS" : "FAILED");
1294
1295 if (!i) {
1296 printk(KERN_WARNING DRV_NAME
1297 ": %s: Firmware did not initialize.\n",
1298 priv->net_dev->name);
1299 return -EIO;
1300 }
1301
1302 /* allow firmware to write to GPIO1 & GPIO3 */
1303 read_register(priv->net_dev, IPW_REG_GPIO, &gpio);
1304
1305 gpio |= (IPW_BIT_GPIO_GPIO1_MASK | IPW_BIT_GPIO_GPIO3_MASK);
1306
1307 write_register(priv->net_dev, IPW_REG_GPIO, gpio);
1308
1309 /* Ready to receive commands */
1310 priv->status |= STATUS_RUNNING;
1311
1312 /* The adapter has been reset; we are not associated */
1313 priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
1314
1315 IPW_DEBUG_INFO("exit\n");
1316
1317 return 0;
1318}
1319
1320static inline void ipw2100_reset_fatalerror(struct ipw2100_priv *priv)
1321{
1322 if (!priv->fatal_error)
1323 return;
1324
1325 priv->fatal_errors[priv->fatal_index++] = priv->fatal_error;
1326 priv->fatal_index %= IPW2100_ERROR_QUEUE;
1327 priv->fatal_error = 0;
1328}
1329
1330/* NOTE: Our interrupt is disabled when this method is called */
1331static int ipw2100_power_cycle_adapter(struct ipw2100_priv *priv)
1332{
1333 u32 reg;
1334 int i;
1335
1336 IPW_DEBUG_INFO("Power cycling the hardware.\n");
1337
1338 ipw2100_hw_set_gpio(priv);
1339
1340 /* Step 1. Stop Master Assert */
1341 write_register(priv->net_dev, IPW_REG_RESET_REG,
1342 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1343
1344 /* Step 2. Wait for stop Master Assert
1345 * (not more than 50us, otherwise ret error */
1346 i = 5;
1347 do {
1348 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
1349 read_register(priv->net_dev, IPW_REG_RESET_REG, ®);
1350
1351 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1352 break;
1353 } while (--i);
1354
1355 priv->status &= ~STATUS_RESET_PENDING;
1356
1357 if (!i) {
1358 IPW_DEBUG_INFO
1359 ("exit - waited too long for master assert stop\n");
1360 return -EIO;
1361 }
1362
1363 write_register(priv->net_dev, IPW_REG_RESET_REG,
1364 IPW_AUX_HOST_RESET_REG_SW_RESET);
1365
1366 /* Reset any fatal_error conditions */
1367 ipw2100_reset_fatalerror(priv);
1368
1369 /* At this point, the adapter is now stopped and disabled */
1370 priv->status &= ~(STATUS_RUNNING | STATUS_ASSOCIATING |
1371 STATUS_ASSOCIATED | STATUS_ENABLED);
1372
1373 return 0;
1374}
1375
1376/*
1377 * Send the CARD_DISABLE_PHY_OFF command to the card to disable it
1378 *
1379 * After disabling, if the card was associated, a STATUS_ASSN_LOST will be sent.
1380 *
1381 * STATUS_CARD_DISABLE_NOTIFICATION will be sent regardless of
1382 * if STATUS_ASSN_LOST is sent.
1383 */
1384static int ipw2100_hw_phy_off(struct ipw2100_priv *priv)
1385{
1386
1387#define HW_PHY_OFF_LOOP_DELAY (msecs_to_jiffies(50))
1388
1389 struct host_command cmd = {
1390 .host_command = CARD_DISABLE_PHY_OFF,
1391 .host_command_sequence = 0,
1392 .host_command_length = 0,
1393 };
1394 int err, i;
1395 u32 val1, val2;
1396
1397 IPW_DEBUG_HC("CARD_DISABLE_PHY_OFF\n");
1398
1399 /* Turn off the radio */
1400 err = ipw2100_hw_send_command(priv, &cmd);
1401 if (err)
1402 return err;
1403
1404 for (i = 0; i < 2500; i++) {
1405 read_nic_dword(priv->net_dev, IPW2100_CONTROL_REG, &val1);
1406 read_nic_dword(priv->net_dev, IPW2100_COMMAND, &val2);
1407
1408 if ((val1 & IPW2100_CONTROL_PHY_OFF) &&
1409 (val2 & IPW2100_COMMAND_PHY_OFF))
1410 return 0;
1411
1412 schedule_timeout_uninterruptible(HW_PHY_OFF_LOOP_DELAY);
1413 }
1414
1415 return -EIO;
1416}
1417
1418static int ipw2100_enable_adapter(struct ipw2100_priv *priv)
1419{
1420 struct host_command cmd = {
1421 .host_command = HOST_COMPLETE,
1422 .host_command_sequence = 0,
1423 .host_command_length = 0
1424 };
1425 int err = 0;
1426
1427 IPW_DEBUG_HC("HOST_COMPLETE\n");
1428
1429 if (priv->status & STATUS_ENABLED)
1430 return 0;
1431
1432 mutex_lock(&priv->adapter_mutex);
1433
1434 if (rf_kill_active(priv)) {
1435 IPW_DEBUG_HC("Command aborted due to RF kill active.\n");
1436 goto fail_up;
1437 }
1438
1439 err = ipw2100_hw_send_command(priv, &cmd);
1440 if (err) {
1441 IPW_DEBUG_INFO("Failed to send HOST_COMPLETE command\n");
1442 goto fail_up;
1443 }
1444
1445 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_ENABLED);
1446 if (err) {
1447 IPW_DEBUG_INFO("%s: card not responding to init command.\n",
1448 priv->net_dev->name);
1449 goto fail_up;
1450 }
1451
1452 if (priv->stop_hang_check) {
1453 priv->stop_hang_check = 0;
1454 schedule_delayed_work(&priv->hang_check, HZ / 2);
1455 }
1456
1457 fail_up:
1458 mutex_unlock(&priv->adapter_mutex);
1459 return err;
1460}
1461
1462static int ipw2100_hw_stop_adapter(struct ipw2100_priv *priv)
1463{
1464#define HW_POWER_DOWN_DELAY (msecs_to_jiffies(100))
1465
1466 struct host_command cmd = {
1467 .host_command = HOST_PRE_POWER_DOWN,
1468 .host_command_sequence = 0,
1469 .host_command_length = 0,
1470 };
1471 int err, i;
1472 u32 reg;
1473
1474 if (!(priv->status & STATUS_RUNNING))
1475 return 0;
1476
1477 priv->status |= STATUS_STOPPING;
1478
1479 /* We can only shut down the card if the firmware is operational. So,
1480 * if we haven't reset since a fatal_error, then we can not send the
1481 * shutdown commands. */
1482 if (!priv->fatal_error) {
1483 /* First, make sure the adapter is enabled so that the PHY_OFF
1484 * command can shut it down */
1485 ipw2100_enable_adapter(priv);
1486
1487 err = ipw2100_hw_phy_off(priv);
1488 if (err)
1489 printk(KERN_WARNING DRV_NAME
1490 ": Error disabling radio %d\n", err);
1491
1492 /*
1493 * If in D0-standby mode going directly to D3 may cause a
1494 * PCI bus violation. Therefore we must change out of the D0
1495 * state.
1496 *
1497 * Sending the PREPARE_FOR_POWER_DOWN will restrict the
1498 * hardware from going into standby mode and will transition
1499 * out of D0-standby if it is already in that state.
1500 *
1501 * STATUS_PREPARE_POWER_DOWN_COMPLETE will be sent by the
1502 * driver upon completion. Once received, the driver can
1503 * proceed to the D3 state.
1504 *
1505 * Prepare for power down command to fw. This command would
1506 * take HW out of D0-standby and prepare it for D3 state.
1507 *
1508 * Currently FW does not support event notification for this
1509 * event. Therefore, skip waiting for it. Just wait a fixed
1510 * 100ms
1511 */
1512 IPW_DEBUG_HC("HOST_PRE_POWER_DOWN\n");
1513
1514 err = ipw2100_hw_send_command(priv, &cmd);
1515 if (err)
1516 printk(KERN_WARNING DRV_NAME ": "
1517 "%s: Power down command failed: Error %d\n",
1518 priv->net_dev->name, err);
1519 else
1520 schedule_timeout_uninterruptible(HW_POWER_DOWN_DELAY);
1521 }
1522
1523 priv->status &= ~STATUS_ENABLED;
1524
1525 /*
1526 * Set GPIO 3 writable by FW; GPIO 1 writable
1527 * by driver and enable clock
1528 */
1529 ipw2100_hw_set_gpio(priv);
1530
1531 /*
1532 * Power down adapter. Sequence:
1533 * 1. Stop master assert (RESET_REG[9]=1)
1534 * 2. Wait for stop master (RESET_REG[8]==1)
1535 * 3. S/w reset assert (RESET_REG[7] = 1)
1536 */
1537
1538 /* Stop master assert */
1539 write_register(priv->net_dev, IPW_REG_RESET_REG,
1540 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1541
1542 /* wait stop master not more than 50 usec.
1543 * Otherwise return error. */
1544 for (i = 5; i > 0; i--) {
1545 udelay(10);
1546
1547 /* Check master stop bit */
1548 read_register(priv->net_dev, IPW_REG_RESET_REG, ®);
1549
1550 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1551 break;
1552 }
1553
1554 if (i == 0)
1555 printk(KERN_WARNING DRV_NAME
1556 ": %s: Could now power down adapter.\n",
1557 priv->net_dev->name);
1558
1559 /* assert s/w reset */
1560 write_register(priv->net_dev, IPW_REG_RESET_REG,
1561 IPW_AUX_HOST_RESET_REG_SW_RESET);
1562
1563 priv->status &= ~(STATUS_RUNNING | STATUS_STOPPING);
1564
1565 return 0;
1566}
1567
1568static int ipw2100_disable_adapter(struct ipw2100_priv *priv)
1569{
1570 struct host_command cmd = {
1571 .host_command = CARD_DISABLE,
1572 .host_command_sequence = 0,
1573 .host_command_length = 0
1574 };
1575 int err = 0;
1576
1577 IPW_DEBUG_HC("CARD_DISABLE\n");
1578
1579 if (!(priv->status & STATUS_ENABLED))
1580 return 0;
1581
1582 /* Make sure we clear the associated state */
1583 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1584
1585 if (!priv->stop_hang_check) {
1586 priv->stop_hang_check = 1;
1587 cancel_delayed_work(&priv->hang_check);
1588 }
1589
1590 mutex_lock(&priv->adapter_mutex);
1591
1592 err = ipw2100_hw_send_command(priv, &cmd);
1593 if (err) {
1594 printk(KERN_WARNING DRV_NAME
1595 ": exit - failed to send CARD_DISABLE command\n");
1596 goto fail_up;
1597 }
1598
1599 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_DISABLED);
1600 if (err) {
1601 printk(KERN_WARNING DRV_NAME
1602 ": exit - card failed to change to DISABLED\n");
1603 goto fail_up;
1604 }
1605
1606 IPW_DEBUG_INFO("TODO: implement scan state machine\n");
1607
1608 fail_up:
1609 mutex_unlock(&priv->adapter_mutex);
1610 return err;
1611}
1612
1613static int ipw2100_set_scan_options(struct ipw2100_priv *priv)
1614{
1615 struct host_command cmd = {
1616 .host_command = SET_SCAN_OPTIONS,
1617 .host_command_sequence = 0,
1618 .host_command_length = 8
1619 };
1620 int err;
1621
1622 IPW_DEBUG_INFO("enter\n");
1623
1624 IPW_DEBUG_SCAN("setting scan options\n");
1625
1626 cmd.host_command_parameters[0] = 0;
1627
1628 if (!(priv->config & CFG_ASSOCIATE))
1629 cmd.host_command_parameters[0] |= IPW_SCAN_NOASSOCIATE;
1630 if ((priv->ieee->sec.flags & SEC_ENABLED) && priv->ieee->sec.enabled)
1631 cmd.host_command_parameters[0] |= IPW_SCAN_MIXED_CELL;
1632 if (priv->config & CFG_PASSIVE_SCAN)
1633 cmd.host_command_parameters[0] |= IPW_SCAN_PASSIVE;
1634
1635 cmd.host_command_parameters[1] = priv->channel_mask;
1636
1637 err = ipw2100_hw_send_command(priv, &cmd);
1638
1639 IPW_DEBUG_HC("SET_SCAN_OPTIONS 0x%04X\n",
1640 cmd.host_command_parameters[0]);
1641
1642 return err;
1643}
1644
1645static int ipw2100_start_scan(struct ipw2100_priv *priv)
1646{
1647 struct host_command cmd = {
1648 .host_command = BROADCAST_SCAN,
1649 .host_command_sequence = 0,
1650 .host_command_length = 4
1651 };
1652 int err;
1653
1654 IPW_DEBUG_HC("START_SCAN\n");
1655
1656 cmd.host_command_parameters[0] = 0;
1657
1658 /* No scanning if in monitor mode */
1659 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
1660 return 1;
1661
1662 if (priv->status & STATUS_SCANNING) {
1663 IPW_DEBUG_SCAN("Scan requested while already in scan...\n");
1664 return 0;
1665 }
1666
1667 IPW_DEBUG_INFO("enter\n");
1668
1669 /* Not clearing here; doing so makes iwlist always return nothing...
1670 *
1671 * We should modify the table logic to use aging tables vs. clearing
1672 * the table on each scan start.
1673 */
1674 IPW_DEBUG_SCAN("starting scan\n");
1675
1676 priv->status |= STATUS_SCANNING;
1677 err = ipw2100_hw_send_command(priv, &cmd);
1678 if (err)
1679 priv->status &= ~STATUS_SCANNING;
1680
1681 IPW_DEBUG_INFO("exit\n");
1682
1683 return err;
1684}
1685
1686static const struct libipw_geo ipw_geos[] = {
1687 { /* Restricted */
1688 "---",
1689 .bg_channels = 14,
1690 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
1691 {2427, 4}, {2432, 5}, {2437, 6},
1692 {2442, 7}, {2447, 8}, {2452, 9},
1693 {2457, 10}, {2462, 11}, {2467, 12},
1694 {2472, 13}, {2484, 14}},
1695 },
1696};
1697
1698static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
1699{
1700 unsigned long flags;
1701 int err = 0;
1702 u32 lock;
1703 u32 ord_len = sizeof(lock);
1704
1705 /* Age scan list entries found before suspend */
1706 if (priv->suspend_time) {
1707 libipw_networks_age(priv->ieee, priv->suspend_time);
1708 priv->suspend_time = 0;
1709 }
1710
1711 /* Quiet if manually disabled. */
1712 if (priv->status & STATUS_RF_KILL_SW) {
1713 IPW_DEBUG_INFO("%s: Radio is disabled by Manual Disable "
1714 "switch\n", priv->net_dev->name);
1715 return 0;
1716 }
1717
1718 /* the ipw2100 hardware really doesn't want power management delays
1719 * longer than 175usec
1720 */
1721 cpu_latency_qos_update_request(&ipw2100_pm_qos_req, 175);
1722
1723 /* If the interrupt is enabled, turn it off... */
1724 spin_lock_irqsave(&priv->low_lock, flags);
1725 ipw2100_disable_interrupts(priv);
1726
1727 /* Reset any fatal_error conditions */
1728 ipw2100_reset_fatalerror(priv);
1729 spin_unlock_irqrestore(&priv->low_lock, flags);
1730
1731 if (priv->status & STATUS_POWERED ||
1732 (priv->status & STATUS_RESET_PENDING)) {
1733 /* Power cycle the card ... */
1734 err = ipw2100_power_cycle_adapter(priv);
1735 if (err) {
1736 printk(KERN_WARNING DRV_NAME
1737 ": %s: Could not cycle adapter.\n",
1738 priv->net_dev->name);
1739 goto exit;
1740 }
1741 } else
1742 priv->status |= STATUS_POWERED;
1743
1744 /* Load the firmware, start the clocks, etc. */
1745 err = ipw2100_start_adapter(priv);
1746 if (err) {
1747 printk(KERN_ERR DRV_NAME
1748 ": %s: Failed to start the firmware.\n",
1749 priv->net_dev->name);
1750 goto exit;
1751 }
1752
1753 ipw2100_initialize_ordinals(priv);
1754
1755 /* Determine capabilities of this particular HW configuration */
1756 err = ipw2100_get_hw_features(priv);
1757 if (err) {
1758 printk(KERN_ERR DRV_NAME
1759 ": %s: Failed to determine HW features.\n",
1760 priv->net_dev->name);
1761 goto exit;
1762 }
1763
1764 /* Initialize the geo */
1765 libipw_set_geo(priv->ieee, &ipw_geos[0]);
1766 priv->ieee->freq_band = LIBIPW_24GHZ_BAND;
1767
1768 lock = LOCK_NONE;
1769 err = ipw2100_set_ordinal(priv, IPW_ORD_PERS_DB_LOCK, &lock, &ord_len);
1770 if (err) {
1771 printk(KERN_ERR DRV_NAME
1772 ": %s: Failed to clear ordinal lock.\n",
1773 priv->net_dev->name);
1774 goto exit;
1775 }
1776
1777 priv->status &= ~STATUS_SCANNING;
1778
1779 if (rf_kill_active(priv)) {
1780 printk(KERN_INFO "%s: Radio is disabled by RF switch.\n",
1781 priv->net_dev->name);
1782
1783 if (priv->stop_rf_kill) {
1784 priv->stop_rf_kill = 0;
1785 schedule_delayed_work(&priv->rf_kill,
1786 round_jiffies_relative(HZ));
1787 }
1788
1789 deferred = 1;
1790 }
1791
1792 /* Turn on the interrupt so that commands can be processed */
1793 ipw2100_enable_interrupts(priv);
1794
1795 /* Send all of the commands that must be sent prior to
1796 * HOST_COMPLETE */
1797 err = ipw2100_adapter_setup(priv);
1798 if (err) {
1799 printk(KERN_ERR DRV_NAME ": %s: Failed to start the card.\n",
1800 priv->net_dev->name);
1801 goto exit;
1802 }
1803
1804 if (!deferred) {
1805 /* Enable the adapter - sends HOST_COMPLETE */
1806 err = ipw2100_enable_adapter(priv);
1807 if (err) {
1808 printk(KERN_ERR DRV_NAME ": "
1809 "%s: failed in call to enable adapter.\n",
1810 priv->net_dev->name);
1811 ipw2100_hw_stop_adapter(priv);
1812 goto exit;
1813 }
1814
1815 /* Start a scan . . . */
1816 ipw2100_set_scan_options(priv);
1817 ipw2100_start_scan(priv);
1818 }
1819
1820 exit:
1821 return err;
1822}
1823
1824static void ipw2100_down(struct ipw2100_priv *priv)
1825{
1826 unsigned long flags;
1827 union iwreq_data wrqu = {
1828 .ap_addr = {
1829 .sa_family = ARPHRD_ETHER}
1830 };
1831 int associated = priv->status & STATUS_ASSOCIATED;
1832
1833 /* Kill the RF switch timer */
1834 if (!priv->stop_rf_kill) {
1835 priv->stop_rf_kill = 1;
1836 cancel_delayed_work(&priv->rf_kill);
1837 }
1838
1839 /* Kill the firmware hang check timer */
1840 if (!priv->stop_hang_check) {
1841 priv->stop_hang_check = 1;
1842 cancel_delayed_work(&priv->hang_check);
1843 }
1844
1845 /* Kill any pending resets */
1846 if (priv->status & STATUS_RESET_PENDING)
1847 cancel_delayed_work(&priv->reset_work);
1848
1849 /* Make sure the interrupt is on so that FW commands will be
1850 * processed correctly */
1851 spin_lock_irqsave(&priv->low_lock, flags);
1852 ipw2100_enable_interrupts(priv);
1853 spin_unlock_irqrestore(&priv->low_lock, flags);
1854
1855 if (ipw2100_hw_stop_adapter(priv))
1856 printk(KERN_ERR DRV_NAME ": %s: Error stopping adapter.\n",
1857 priv->net_dev->name);
1858
1859 /* Do not disable the interrupt until _after_ we disable
1860 * the adaptor. Otherwise the CARD_DISABLE command will never
1861 * be ack'd by the firmware */
1862 spin_lock_irqsave(&priv->low_lock, flags);
1863 ipw2100_disable_interrupts(priv);
1864 spin_unlock_irqrestore(&priv->low_lock, flags);
1865
1866 cpu_latency_qos_update_request(&ipw2100_pm_qos_req,
1867 PM_QOS_DEFAULT_VALUE);
1868
1869 /* We have to signal any supplicant if we are disassociating */
1870 if (associated)
1871 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1872
1873 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1874 netif_carrier_off(priv->net_dev);
1875 netif_stop_queue(priv->net_dev);
1876}
1877
1878static int ipw2100_wdev_init(struct net_device *dev)
1879{
1880 struct ipw2100_priv *priv = libipw_priv(dev);
1881 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
1882 struct wireless_dev *wdev = &priv->ieee->wdev;
1883 int i;
1884
1885 memcpy(wdev->wiphy->perm_addr, priv->mac_addr, ETH_ALEN);
1886
1887 /* fill-out priv->ieee->bg_band */
1888 if (geo->bg_channels) {
1889 struct ieee80211_supported_band *bg_band = &priv->ieee->bg_band;
1890
1891 bg_band->band = NL80211_BAND_2GHZ;
1892 bg_band->n_channels = geo->bg_channels;
1893 bg_band->channels = kcalloc(geo->bg_channels,
1894 sizeof(struct ieee80211_channel),
1895 GFP_KERNEL);
1896 if (!bg_band->channels) {
1897 ipw2100_down(priv);
1898 return -ENOMEM;
1899 }
1900 /* translate geo->bg to bg_band.channels */
1901 for (i = 0; i < geo->bg_channels; i++) {
1902 bg_band->channels[i].band = NL80211_BAND_2GHZ;
1903 bg_band->channels[i].center_freq = geo->bg[i].freq;
1904 bg_band->channels[i].hw_value = geo->bg[i].channel;
1905 bg_band->channels[i].max_power = geo->bg[i].max_power;
1906 if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY)
1907 bg_band->channels[i].flags |=
1908 IEEE80211_CHAN_NO_IR;
1909 if (geo->bg[i].flags & LIBIPW_CH_NO_IBSS)
1910 bg_band->channels[i].flags |=
1911 IEEE80211_CHAN_NO_IR;
1912 if (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT)
1913 bg_band->channels[i].flags |=
1914 IEEE80211_CHAN_RADAR;
1915 /* No equivalent for LIBIPW_CH_80211H_RULES,
1916 LIBIPW_CH_UNIFORM_SPREADING, or
1917 LIBIPW_CH_B_ONLY... */
1918 }
1919 /* point at bitrate info */
1920 bg_band->bitrates = ipw2100_bg_rates;
1921 bg_band->n_bitrates = RATE_COUNT;
1922
1923 wdev->wiphy->bands[NL80211_BAND_2GHZ] = bg_band;
1924 }
1925
1926 wdev->wiphy->cipher_suites = ipw_cipher_suites;
1927 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(ipw_cipher_suites);
1928
1929 set_wiphy_dev(wdev->wiphy, &priv->pci_dev->dev);
1930 if (wiphy_register(wdev->wiphy))
1931 return -EIO;
1932 return 0;
1933}
1934
1935static void ipw2100_reset_adapter(struct work_struct *work)
1936{
1937 struct ipw2100_priv *priv =
1938 container_of(work, struct ipw2100_priv, reset_work.work);
1939 unsigned long flags;
1940 union iwreq_data wrqu = {
1941 .ap_addr = {
1942 .sa_family = ARPHRD_ETHER}
1943 };
1944 int associated = priv->status & STATUS_ASSOCIATED;
1945
1946 spin_lock_irqsave(&priv->low_lock, flags);
1947 IPW_DEBUG_INFO(": %s: Restarting adapter.\n", priv->net_dev->name);
1948 priv->resets++;
1949 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1950 priv->status |= STATUS_SECURITY_UPDATED;
1951
1952 /* Force a power cycle even if interface hasn't been opened
1953 * yet */
1954 cancel_delayed_work(&priv->reset_work);
1955 priv->status |= STATUS_RESET_PENDING;
1956 spin_unlock_irqrestore(&priv->low_lock, flags);
1957
1958 mutex_lock(&priv->action_mutex);
1959 /* stop timed checks so that they don't interfere with reset */
1960 priv->stop_hang_check = 1;
1961 cancel_delayed_work(&priv->hang_check);
1962
1963 /* We have to signal any supplicant if we are disassociating */
1964 if (associated)
1965 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1966
1967 ipw2100_up(priv, 0);
1968 mutex_unlock(&priv->action_mutex);
1969
1970}
1971
1972static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status)
1973{
1974
1975#define MAC_ASSOCIATION_READ_DELAY (HZ)
1976 int ret;
1977 unsigned int len, essid_len;
1978 char essid[IW_ESSID_MAX_SIZE];
1979 u32 txrate;
1980 u32 chan;
1981 char *txratename;
1982 u8 bssid[ETH_ALEN];
1983
1984 /*
1985 * TBD: BSSID is usually 00:00:00:00:00:00 here and not
1986 * an actual MAC of the AP. Seems like FW sets this
1987 * address too late. Read it later and expose through
1988 * /proc or schedule a later task to query and update
1989 */
1990
1991 essid_len = IW_ESSID_MAX_SIZE;
1992 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID,
1993 essid, &essid_len);
1994 if (ret) {
1995 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1996 __LINE__);
1997 return;
1998 }
1999
2000 len = sizeof(u32);
2001 ret = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &txrate, &len);
2002 if (ret) {
2003 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2004 __LINE__);
2005 return;
2006 }
2007
2008 len = sizeof(u32);
2009 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &len);
2010 if (ret) {
2011 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2012 __LINE__);
2013 return;
2014 }
2015 len = ETH_ALEN;
2016 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, bssid,
2017 &len);
2018 if (ret) {
2019 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2020 __LINE__);
2021 return;
2022 }
2023 memcpy(priv->ieee->bssid, bssid, ETH_ALEN);
2024
2025 switch (txrate) {
2026 case TX_RATE_1_MBIT:
2027 txratename = "1Mbps";
2028 break;
2029 case TX_RATE_2_MBIT:
2030 txratename = "2Mbsp";
2031 break;
2032 case TX_RATE_5_5_MBIT:
2033 txratename = "5.5Mbps";
2034 break;
2035 case TX_RATE_11_MBIT:
2036 txratename = "11Mbps";
2037 break;
2038 default:
2039 IPW_DEBUG_INFO("Unknown rate: %d\n", txrate);
2040 txratename = "unknown rate";
2041 break;
2042 }
2043
2044 IPW_DEBUG_INFO("%s: Associated with '%*pE' at %s, channel %d (BSSID=%pM)\n",
2045 priv->net_dev->name, essid_len, essid,
2046 txratename, chan, bssid);
2047
2048 /* now we copy read ssid into dev */
2049 if (!(priv->config & CFG_STATIC_ESSID)) {
2050 priv->essid_len = min((u8) essid_len, (u8) IW_ESSID_MAX_SIZE);
2051 memcpy(priv->essid, essid, priv->essid_len);
2052 }
2053 priv->channel = chan;
2054 memcpy(priv->bssid, bssid, ETH_ALEN);
2055
2056 priv->status |= STATUS_ASSOCIATING;
2057 priv->connect_start = ktime_get_boottime_seconds();
2058
2059 schedule_delayed_work(&priv->wx_event_work, HZ / 10);
2060}
2061
2062static int ipw2100_set_essid(struct ipw2100_priv *priv, char *essid,
2063 int length, int batch_mode)
2064{
2065 int ssid_len = min(length, IW_ESSID_MAX_SIZE);
2066 struct host_command cmd = {
2067 .host_command = SSID,
2068 .host_command_sequence = 0,
2069 .host_command_length = ssid_len
2070 };
2071 int err;
2072
2073 IPW_DEBUG_HC("SSID: '%*pE'\n", ssid_len, essid);
2074
2075 if (ssid_len)
2076 memcpy(cmd.host_command_parameters, essid, ssid_len);
2077
2078 if (!batch_mode) {
2079 err = ipw2100_disable_adapter(priv);
2080 if (err)
2081 return err;
2082 }
2083
2084 /* Bug in FW currently doesn't honor bit 0 in SET_SCAN_OPTIONS to
2085 * disable auto association -- so we cheat by setting a bogus SSID */
2086 if (!ssid_len && !(priv->config & CFG_ASSOCIATE)) {
2087 int i;
2088 u8 *bogus = (u8 *) cmd.host_command_parameters;
2089 for (i = 0; i < IW_ESSID_MAX_SIZE; i++)
2090 bogus[i] = 0x18 + i;
2091 cmd.host_command_length = IW_ESSID_MAX_SIZE;
2092 }
2093
2094 /* NOTE: We always send the SSID command even if the provided ESSID is
2095 * the same as what we currently think is set. */
2096
2097 err = ipw2100_hw_send_command(priv, &cmd);
2098 if (!err) {
2099 memset(priv->essid + ssid_len, 0, IW_ESSID_MAX_SIZE - ssid_len);
2100 memcpy(priv->essid, essid, ssid_len);
2101 priv->essid_len = ssid_len;
2102 }
2103
2104 if (!batch_mode) {
2105 if (ipw2100_enable_adapter(priv))
2106 err = -EIO;
2107 }
2108
2109 return err;
2110}
2111
2112static void isr_indicate_association_lost(struct ipw2100_priv *priv, u32 status)
2113{
2114 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
2115 "disassociated: '%*pE' %pM\n", priv->essid_len, priv->essid,
2116 priv->bssid);
2117
2118 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
2119
2120 if (priv->status & STATUS_STOPPING) {
2121 IPW_DEBUG_INFO("Card is stopping itself, discard ASSN_LOST.\n");
2122 return;
2123 }
2124
2125 eth_zero_addr(priv->bssid);
2126 eth_zero_addr(priv->ieee->bssid);
2127
2128 netif_carrier_off(priv->net_dev);
2129 netif_stop_queue(priv->net_dev);
2130
2131 if (!(priv->status & STATUS_RUNNING))
2132 return;
2133
2134 if (priv->status & STATUS_SECURITY_UPDATED)
2135 schedule_delayed_work(&priv->security_work, 0);
2136
2137 schedule_delayed_work(&priv->wx_event_work, 0);
2138}
2139
2140static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status)
2141{
2142 IPW_DEBUG_INFO("%s: RF Kill state changed to radio OFF.\n",
2143 priv->net_dev->name);
2144
2145 /* RF_KILL is now enabled (else we wouldn't be here) */
2146 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
2147 priv->status |= STATUS_RF_KILL_HW;
2148
2149 /* Make sure the RF Kill check timer is running */
2150 priv->stop_rf_kill = 0;
2151 mod_delayed_work(system_wq, &priv->rf_kill, round_jiffies_relative(HZ));
2152}
2153
2154static void ipw2100_scan_event(struct work_struct *work)
2155{
2156 struct ipw2100_priv *priv = container_of(work, struct ipw2100_priv,
2157 scan_event.work);
2158 union iwreq_data wrqu;
2159
2160 wrqu.data.length = 0;
2161 wrqu.data.flags = 0;
2162 wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL);
2163}
2164
2165static void isr_scan_complete(struct ipw2100_priv *priv, u32 status)
2166{
2167 IPW_DEBUG_SCAN("scan complete\n");
2168 /* Age the scan results... */
2169 priv->ieee->scans++;
2170 priv->status &= ~STATUS_SCANNING;
2171
2172 /* Only userspace-requested scan completion events go out immediately */
2173 if (!priv->user_requested_scan) {
2174 schedule_delayed_work(&priv->scan_event,
2175 round_jiffies_relative(msecs_to_jiffies(4000)));
2176 } else {
2177 priv->user_requested_scan = 0;
2178 mod_delayed_work(system_wq, &priv->scan_event, 0);
2179 }
2180}
2181
2182#ifdef CONFIG_IPW2100_DEBUG
2183#define IPW2100_HANDLER(v, f) { v, f, # v }
2184struct ipw2100_status_indicator {
2185 int status;
2186 void (*cb) (struct ipw2100_priv * priv, u32 status);
2187 char *name;
2188};
2189#else
2190#define IPW2100_HANDLER(v, f) { v, f }
2191struct ipw2100_status_indicator {
2192 int status;
2193 void (*cb) (struct ipw2100_priv * priv, u32 status);
2194};
2195#endif /* CONFIG_IPW2100_DEBUG */
2196
2197static void isr_indicate_scanning(struct ipw2100_priv *priv, u32 status)
2198{
2199 IPW_DEBUG_SCAN("Scanning...\n");
2200 priv->status |= STATUS_SCANNING;
2201}
2202
2203static const struct ipw2100_status_indicator status_handlers[] = {
2204 IPW2100_HANDLER(IPW_STATE_INITIALIZED, NULL),
2205 IPW2100_HANDLER(IPW_STATE_COUNTRY_FOUND, NULL),
2206 IPW2100_HANDLER(IPW_STATE_ASSOCIATED, isr_indicate_associated),
2207 IPW2100_HANDLER(IPW_STATE_ASSN_LOST, isr_indicate_association_lost),
2208 IPW2100_HANDLER(IPW_STATE_ASSN_CHANGED, NULL),
2209 IPW2100_HANDLER(IPW_STATE_SCAN_COMPLETE, isr_scan_complete),
2210 IPW2100_HANDLER(IPW_STATE_ENTERED_PSP, NULL),
2211 IPW2100_HANDLER(IPW_STATE_LEFT_PSP, NULL),
2212 IPW2100_HANDLER(IPW_STATE_RF_KILL, isr_indicate_rf_kill),
2213 IPW2100_HANDLER(IPW_STATE_DISABLED, NULL),
2214 IPW2100_HANDLER(IPW_STATE_POWER_DOWN, NULL),
2215 IPW2100_HANDLER(IPW_STATE_SCANNING, isr_indicate_scanning),
2216 IPW2100_HANDLER(-1, NULL)
2217};
2218
2219static void isr_status_change(struct ipw2100_priv *priv, int status)
2220{
2221 int i;
2222
2223 if (status == IPW_STATE_SCANNING &&
2224 priv->status & STATUS_ASSOCIATED &&
2225 !(priv->status & STATUS_SCANNING)) {
2226 IPW_DEBUG_INFO("Scan detected while associated, with "
2227 "no scan request. Restarting firmware.\n");
2228
2229 /* Wake up any sleeping jobs */
2230 schedule_reset(priv);
2231 }
2232
2233 for (i = 0; status_handlers[i].status != -1; i++) {
2234 if (status == status_handlers[i].status) {
2235 IPW_DEBUG_NOTIF("Status change: %s\n",
2236 status_handlers[i].name);
2237 if (status_handlers[i].cb)
2238 status_handlers[i].cb(priv, status);
2239 priv->wstats.status = status;
2240 return;
2241 }
2242 }
2243
2244 IPW_DEBUG_NOTIF("unknown status received: %04x\n", status);
2245}
2246
2247static void isr_rx_complete_command(struct ipw2100_priv *priv,
2248 struct ipw2100_cmd_header *cmd)
2249{
2250#ifdef CONFIG_IPW2100_DEBUG
2251 if (cmd->host_command_reg < ARRAY_SIZE(command_types)) {
2252 IPW_DEBUG_HC("Command completed '%s (%d)'\n",
2253 command_types[cmd->host_command_reg],
2254 cmd->host_command_reg);
2255 }
2256#endif
2257 if (cmd->host_command_reg == HOST_COMPLETE)
2258 priv->status |= STATUS_ENABLED;
2259
2260 if (cmd->host_command_reg == CARD_DISABLE)
2261 priv->status &= ~STATUS_ENABLED;
2262
2263 priv->status &= ~STATUS_CMD_ACTIVE;
2264
2265 wake_up_interruptible(&priv->wait_command_queue);
2266}
2267
2268#ifdef CONFIG_IPW2100_DEBUG
2269static const char *frame_types[] = {
2270 "COMMAND_STATUS_VAL",
2271 "STATUS_CHANGE_VAL",
2272 "P80211_DATA_VAL",
2273 "P8023_DATA_VAL",
2274 "HOST_NOTIFICATION_VAL"
2275};
2276#endif
2277
2278static int ipw2100_alloc_skb(struct ipw2100_priv *priv,
2279 struct ipw2100_rx_packet *packet)
2280{
2281 packet->skb = dev_alloc_skb(sizeof(struct ipw2100_rx));
2282 if (!packet->skb)
2283 return -ENOMEM;
2284
2285 packet->rxp = (struct ipw2100_rx *)packet->skb->data;
2286 packet->dma_addr = dma_map_single(&priv->pci_dev->dev,
2287 packet->skb->data,
2288 sizeof(struct ipw2100_rx),
2289 DMA_FROM_DEVICE);
2290 if (dma_mapping_error(&priv->pci_dev->dev, packet->dma_addr)) {
2291 dev_kfree_skb(packet->skb);
2292 return -ENOMEM;
2293 }
2294
2295 return 0;
2296}
2297
2298#define SEARCH_ERROR 0xffffffff
2299#define SEARCH_FAIL 0xfffffffe
2300#define SEARCH_SUCCESS 0xfffffff0
2301#define SEARCH_DISCARD 0
2302#define SEARCH_SNAPSHOT 1
2303
2304#define SNAPSHOT_ADDR(ofs) (priv->snapshot[((ofs) >> 12) & 0xff] + ((ofs) & 0xfff))
2305static void ipw2100_snapshot_free(struct ipw2100_priv *priv)
2306{
2307 int i;
2308 if (!priv->snapshot[0])
2309 return;
2310 for (i = 0; i < 0x30; i++)
2311 kfree(priv->snapshot[i]);
2312 priv->snapshot[0] = NULL;
2313}
2314
2315#ifdef IPW2100_DEBUG_C3
2316static int ipw2100_snapshot_alloc(struct ipw2100_priv *priv)
2317{
2318 int i;
2319 if (priv->snapshot[0])
2320 return 1;
2321 for (i = 0; i < 0x30; i++) {
2322 priv->snapshot[i] = kmalloc(0x1000, GFP_ATOMIC);
2323 if (!priv->snapshot[i]) {
2324 IPW_DEBUG_INFO("%s: Error allocating snapshot "
2325 "buffer %d\n", priv->net_dev->name, i);
2326 while (i > 0)
2327 kfree(priv->snapshot[--i]);
2328 priv->snapshot[0] = NULL;
2329 return 0;
2330 }
2331 }
2332
2333 return 1;
2334}
2335
2336static u32 ipw2100_match_buf(struct ipw2100_priv *priv, u8 * in_buf,
2337 size_t len, int mode)
2338{
2339 u32 i, j;
2340 u32 tmp;
2341 u8 *s, *d;
2342 u32 ret;
2343
2344 s = in_buf;
2345 if (mode == SEARCH_SNAPSHOT) {
2346 if (!ipw2100_snapshot_alloc(priv))
2347 mode = SEARCH_DISCARD;
2348 }
2349
2350 for (ret = SEARCH_FAIL, i = 0; i < 0x30000; i += 4) {
2351 read_nic_dword(priv->net_dev, i, &tmp);
2352 if (mode == SEARCH_SNAPSHOT)
2353 *(u32 *) SNAPSHOT_ADDR(i) = tmp;
2354 if (ret == SEARCH_FAIL) {
2355 d = (u8 *) & tmp;
2356 for (j = 0; j < 4; j++) {
2357 if (*s != *d) {
2358 s = in_buf;
2359 continue;
2360 }
2361
2362 s++;
2363 d++;
2364
2365 if ((s - in_buf) == len)
2366 ret = (i + j) - len + 1;
2367 }
2368 } else if (mode == SEARCH_DISCARD)
2369 return ret;
2370 }
2371
2372 return ret;
2373}
2374#endif
2375
2376/*
2377 *
2378 * 0) Disconnect the SKB from the firmware (just unmap)
2379 * 1) Pack the ETH header into the SKB
2380 * 2) Pass the SKB to the network stack
2381 *
2382 * When packet is provided by the firmware, it contains the following:
2383 *
2384 * . libipw_hdr
2385 * . libipw_snap_hdr
2386 *
2387 * The size of the constructed ethernet
2388 *
2389 */
2390#ifdef IPW2100_RX_DEBUG
2391static u8 packet_data[IPW_RX_NIC_BUFFER_LENGTH];
2392#endif
2393
2394static void ipw2100_corruption_detected(struct ipw2100_priv *priv, int i)
2395{
2396#ifdef IPW2100_DEBUG_C3
2397 struct ipw2100_status *status = &priv->status_queue.drv[i];
2398 u32 match, reg;
2399 int j;
2400#endif
2401
2402 IPW_DEBUG_INFO(": PCI latency error detected at 0x%04zX.\n",
2403 i * sizeof(struct ipw2100_status));
2404
2405#ifdef IPW2100_DEBUG_C3
2406 /* Halt the firmware so we can get a good image */
2407 write_register(priv->net_dev, IPW_REG_RESET_REG,
2408 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
2409 j = 5;
2410 do {
2411 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
2412 read_register(priv->net_dev, IPW_REG_RESET_REG, ®);
2413
2414 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
2415 break;
2416 } while (j--);
2417
2418 match = ipw2100_match_buf(priv, (u8 *) status,
2419 sizeof(struct ipw2100_status),
2420 SEARCH_SNAPSHOT);
2421 if (match < SEARCH_SUCCESS)
2422 IPW_DEBUG_INFO("%s: DMA status match in Firmware at "
2423 "offset 0x%06X, length %d:\n",
2424 priv->net_dev->name, match,
2425 sizeof(struct ipw2100_status));
2426 else
2427 IPW_DEBUG_INFO("%s: No DMA status match in "
2428 "Firmware.\n", priv->net_dev->name);
2429
2430 printk_buf((u8 *) priv->status_queue.drv,
2431 sizeof(struct ipw2100_status) * RX_QUEUE_LENGTH);
2432#endif
2433
2434 priv->fatal_error = IPW2100_ERR_C3_CORRUPTION;
2435 priv->net_dev->stats.rx_errors++;
2436 schedule_reset(priv);
2437}
2438
2439static void isr_rx(struct ipw2100_priv *priv, int i,
2440 struct libipw_rx_stats *stats)
2441{
2442 struct net_device *dev = priv->net_dev;
2443 struct ipw2100_status *status = &priv->status_queue.drv[i];
2444 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2445
2446 IPW_DEBUG_RX("Handler...\n");
2447
2448 if (unlikely(status->frame_size > skb_tailroom(packet->skb))) {
2449 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2450 " Dropping.\n",
2451 dev->name,
2452 status->frame_size, skb_tailroom(packet->skb));
2453 dev->stats.rx_errors++;
2454 return;
2455 }
2456
2457 if (unlikely(!netif_running(dev))) {
2458 dev->stats.rx_errors++;
2459 priv->wstats.discard.misc++;
2460 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2461 return;
2462 }
2463
2464 if (unlikely(priv->ieee->iw_mode != IW_MODE_MONITOR &&
2465 !(priv->status & STATUS_ASSOCIATED))) {
2466 IPW_DEBUG_DROP("Dropping packet while not associated.\n");
2467 priv->wstats.discard.misc++;
2468 return;
2469 }
2470
2471 dma_unmap_single(&priv->pci_dev->dev, packet->dma_addr,
2472 sizeof(struct ipw2100_rx), DMA_FROM_DEVICE);
2473
2474 skb_put(packet->skb, status->frame_size);
2475
2476#ifdef IPW2100_RX_DEBUG
2477 /* Make a copy of the frame so we can dump it to the logs if
2478 * libipw_rx fails */
2479 skb_copy_from_linear_data(packet->skb, packet_data,
2480 min_t(u32, status->frame_size,
2481 IPW_RX_NIC_BUFFER_LENGTH));
2482#endif
2483
2484 if (!libipw_rx(priv->ieee, packet->skb, stats)) {
2485#ifdef IPW2100_RX_DEBUG
2486 IPW_DEBUG_DROP("%s: Non consumed packet:\n",
2487 dev->name);
2488 printk_buf(IPW_DL_DROP, packet_data, status->frame_size);
2489#endif
2490 dev->stats.rx_errors++;
2491
2492 /* libipw_rx failed, so it didn't free the SKB */
2493 dev_kfree_skb_any(packet->skb);
2494 packet->skb = NULL;
2495 }
2496
2497 /* We need to allocate a new SKB and attach it to the RDB. */
2498 if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2499 printk(KERN_WARNING DRV_NAME ": "
2500 "%s: Unable to allocate SKB onto RBD ring - disabling "
2501 "adapter.\n", dev->name);
2502 /* TODO: schedule adapter shutdown */
2503 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2504 }
2505
2506 /* Update the RDB entry */
2507 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2508}
2509
2510#ifdef CONFIG_IPW2100_MONITOR
2511
2512static void isr_rx_monitor(struct ipw2100_priv *priv, int i,
2513 struct libipw_rx_stats *stats)
2514{
2515 struct net_device *dev = priv->net_dev;
2516 struct ipw2100_status *status = &priv->status_queue.drv[i];
2517 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2518
2519 /* Magic struct that slots into the radiotap header -- no reason
2520 * to build this manually element by element, we can write it much
2521 * more efficiently than we can parse it. ORDER MATTERS HERE */
2522 struct ipw_rt_hdr {
2523 struct ieee80211_radiotap_header rt_hdr;
2524 s8 rt_dbmsignal; /* signal in dbM, kluged to signed */
2525 } *ipw_rt;
2526
2527 IPW_DEBUG_RX("Handler...\n");
2528
2529 if (unlikely(status->frame_size > skb_tailroom(packet->skb) -
2530 sizeof(struct ipw_rt_hdr))) {
2531 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2532 " Dropping.\n",
2533 dev->name,
2534 status->frame_size,
2535 skb_tailroom(packet->skb));
2536 dev->stats.rx_errors++;
2537 return;
2538 }
2539
2540 if (unlikely(!netif_running(dev))) {
2541 dev->stats.rx_errors++;
2542 priv->wstats.discard.misc++;
2543 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2544 return;
2545 }
2546
2547 if (unlikely(priv->config & CFG_CRC_CHECK &&
2548 status->flags & IPW_STATUS_FLAG_CRC_ERROR)) {
2549 IPW_DEBUG_RX("CRC error in packet. Dropping.\n");
2550 dev->stats.rx_errors++;
2551 return;
2552 }
2553
2554 dma_unmap_single(&priv->pci_dev->dev, packet->dma_addr,
2555 sizeof(struct ipw2100_rx), DMA_FROM_DEVICE);
2556 memmove(packet->skb->data + sizeof(struct ipw_rt_hdr),
2557 packet->skb->data, status->frame_size);
2558
2559 ipw_rt = (struct ipw_rt_hdr *) packet->skb->data;
2560
2561 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
2562 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */
2563 ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct ipw_rt_hdr)); /* total hdr+data */
2564
2565 ipw_rt->rt_hdr.it_present = cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
2566
2567 ipw_rt->rt_dbmsignal = status->rssi + IPW2100_RSSI_TO_DBM;
2568
2569 skb_put(packet->skb, status->frame_size + sizeof(struct ipw_rt_hdr));
2570
2571 if (!libipw_rx(priv->ieee, packet->skb, stats)) {
2572 dev->stats.rx_errors++;
2573
2574 /* libipw_rx failed, so it didn't free the SKB */
2575 dev_kfree_skb_any(packet->skb);
2576 packet->skb = NULL;
2577 }
2578
2579 /* We need to allocate a new SKB and attach it to the RDB. */
2580 if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2581 IPW_DEBUG_WARNING(
2582 "%s: Unable to allocate SKB onto RBD ring - disabling "
2583 "adapter.\n", dev->name);
2584 /* TODO: schedule adapter shutdown */
2585 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2586 }
2587
2588 /* Update the RDB entry */
2589 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2590}
2591
2592#endif
2593
2594static int ipw2100_corruption_check(struct ipw2100_priv *priv, int i)
2595{
2596 struct ipw2100_status *status = &priv->status_queue.drv[i];
2597 struct ipw2100_rx *u = priv->rx_buffers[i].rxp;
2598 u16 frame_type = status->status_fields & STATUS_TYPE_MASK;
2599
2600 switch (frame_type) {
2601 case COMMAND_STATUS_VAL:
2602 return (status->frame_size != sizeof(u->rx_data.command));
2603 case STATUS_CHANGE_VAL:
2604 return (status->frame_size != sizeof(u->rx_data.status));
2605 case HOST_NOTIFICATION_VAL:
2606 return (status->frame_size < sizeof(u->rx_data.notification));
2607 case P80211_DATA_VAL:
2608 case P8023_DATA_VAL:
2609#ifdef CONFIG_IPW2100_MONITOR
2610 return 0;
2611#else
2612 switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) {
2613 case IEEE80211_FTYPE_MGMT:
2614 case IEEE80211_FTYPE_CTL:
2615 return 0;
2616 case IEEE80211_FTYPE_DATA:
2617 return (status->frame_size >
2618 IPW_MAX_802_11_PAYLOAD_LENGTH);
2619 }
2620#endif
2621 }
2622
2623 return 1;
2624}
2625
2626/*
2627 * ipw2100 interrupts are disabled at this point, and the ISR
2628 * is the only code that calls this method. So, we do not need
2629 * to play with any locks.
2630 *
2631 * RX Queue works as follows:
2632 *
2633 * Read index - firmware places packet in entry identified by the
2634 * Read index and advances Read index. In this manner,
2635 * Read index will always point to the next packet to
2636 * be filled--but not yet valid.
2637 *
2638 * Write index - driver fills this entry with an unused RBD entry.
2639 * This entry has not filled by the firmware yet.
2640 *
2641 * In between the W and R indexes are the RBDs that have been received
2642 * but not yet processed.
2643 *
2644 * The process of handling packets will start at WRITE + 1 and advance
2645 * until it reaches the READ index.
2646 *
2647 * The WRITE index is cached in the variable 'priv->rx_queue.next'.
2648 *
2649 */
2650static void __ipw2100_rx_process(struct ipw2100_priv *priv)
2651{
2652 struct ipw2100_bd_queue *rxq = &priv->rx_queue;
2653 struct ipw2100_status_queue *sq = &priv->status_queue;
2654 struct ipw2100_rx_packet *packet;
2655 u16 frame_type;
2656 u32 r, w, i, s;
2657 struct ipw2100_rx *u;
2658 struct libipw_rx_stats stats = {
2659 .mac_time = jiffies,
2660 };
2661
2662 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_READ_INDEX, &r);
2663 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, &w);
2664
2665 if (r >= rxq->entries) {
2666 IPW_DEBUG_RX("exit - bad read index\n");
2667 return;
2668 }
2669
2670 i = (rxq->next + 1) % rxq->entries;
2671 s = i;
2672 while (i != r) {
2673 /* IPW_DEBUG_RX("r = %d : w = %d : processing = %d\n",
2674 r, rxq->next, i); */
2675
2676 packet = &priv->rx_buffers[i];
2677
2678 /* Sync the DMA for the RX buffer so CPU is sure to get
2679 * the correct values */
2680 dma_sync_single_for_cpu(&priv->pci_dev->dev, packet->dma_addr,
2681 sizeof(struct ipw2100_rx),
2682 DMA_FROM_DEVICE);
2683
2684 if (unlikely(ipw2100_corruption_check(priv, i))) {
2685 ipw2100_corruption_detected(priv, i);
2686 goto increment;
2687 }
2688
2689 u = packet->rxp;
2690 frame_type = sq->drv[i].status_fields & STATUS_TYPE_MASK;
2691 stats.rssi = sq->drv[i].rssi + IPW2100_RSSI_TO_DBM;
2692 stats.len = sq->drv[i].frame_size;
2693
2694 stats.mask = 0;
2695 if (stats.rssi != 0)
2696 stats.mask |= LIBIPW_STATMASK_RSSI;
2697 stats.freq = LIBIPW_24GHZ_BAND;
2698
2699 IPW_DEBUG_RX("%s: '%s' frame type received (%d).\n",
2700 priv->net_dev->name, frame_types[frame_type],
2701 stats.len);
2702
2703 switch (frame_type) {
2704 case COMMAND_STATUS_VAL:
2705 /* Reset Rx watchdog */
2706 isr_rx_complete_command(priv, &u->rx_data.command);
2707 break;
2708
2709 case STATUS_CHANGE_VAL:
2710 isr_status_change(priv, u->rx_data.status);
2711 break;
2712
2713 case P80211_DATA_VAL:
2714 case P8023_DATA_VAL:
2715#ifdef CONFIG_IPW2100_MONITOR
2716 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
2717 isr_rx_monitor(priv, i, &stats);
2718 break;
2719 }
2720#endif
2721 if (stats.len < sizeof(struct libipw_hdr_3addr))
2722 break;
2723 switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) {
2724 case IEEE80211_FTYPE_MGMT:
2725 libipw_rx_mgt(priv->ieee,
2726 &u->rx_data.header, &stats);
2727 break;
2728
2729 case IEEE80211_FTYPE_CTL:
2730 break;
2731
2732 case IEEE80211_FTYPE_DATA:
2733 isr_rx(priv, i, &stats);
2734 break;
2735
2736 }
2737 break;
2738 }
2739
2740 increment:
2741 /* clear status field associated with this RBD */
2742 rxq->drv[i].status.info.field = 0;
2743
2744 i = (i + 1) % rxq->entries;
2745 }
2746
2747 if (i != s) {
2748 /* backtrack one entry, wrapping to end if at 0 */
2749 rxq->next = (i ? i : rxq->entries) - 1;
2750
2751 write_register(priv->net_dev,
2752 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, rxq->next);
2753 }
2754}
2755
2756/*
2757 * __ipw2100_tx_process
2758 *
2759 * This routine will determine whether the next packet on
2760 * the fw_pend_list has been processed by the firmware yet.
2761 *
2762 * If not, then it does nothing and returns.
2763 *
2764 * If so, then it removes the item from the fw_pend_list, frees
2765 * any associated storage, and places the item back on the
2766 * free list of its source (either msg_free_list or tx_free_list)
2767 *
2768 * TX Queue works as follows:
2769 *
2770 * Read index - points to the next TBD that the firmware will
2771 * process. The firmware will read the data, and once
2772 * done processing, it will advance the Read index.
2773 *
2774 * Write index - driver fills this entry with an constructed TBD
2775 * entry. The Write index is not advanced until the
2776 * packet has been configured.
2777 *
2778 * In between the W and R indexes are the TBDs that have NOT been
2779 * processed. Lagging behind the R index are packets that have
2780 * been processed but have not been freed by the driver.
2781 *
2782 * In order to free old storage, an internal index will be maintained
2783 * that points to the next packet to be freed. When all used
2784 * packets have been freed, the oldest index will be the same as the
2785 * firmware's read index.
2786 *
2787 * The OLDEST index is cached in the variable 'priv->tx_queue.oldest'
2788 *
2789 * Because the TBD structure can not contain arbitrary data, the
2790 * driver must keep an internal queue of cached allocations such that
2791 * it can put that data back into the tx_free_list and msg_free_list
2792 * for use by future command and data packets.
2793 *
2794 */
2795static int __ipw2100_tx_process(struct ipw2100_priv *priv)
2796{
2797 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2798 struct ipw2100_bd *tbd;
2799 struct list_head *element;
2800 struct ipw2100_tx_packet *packet;
2801 int descriptors_used;
2802 int e, i;
2803 u32 r, w, frag_num = 0;
2804
2805 if (list_empty(&priv->fw_pend_list))
2806 return 0;
2807
2808 element = priv->fw_pend_list.next;
2809
2810 packet = list_entry(element, struct ipw2100_tx_packet, list);
2811 tbd = &txq->drv[packet->index];
2812
2813 /* Determine how many TBD entries must be finished... */
2814 switch (packet->type) {
2815 case COMMAND:
2816 /* COMMAND uses only one slot; don't advance */
2817 descriptors_used = 1;
2818 e = txq->oldest;
2819 break;
2820
2821 case DATA:
2822 /* DATA uses two slots; advance and loop position. */
2823 descriptors_used = tbd->num_fragments;
2824 frag_num = tbd->num_fragments - 1;
2825 e = txq->oldest + frag_num;
2826 e %= txq->entries;
2827 break;
2828
2829 default:
2830 printk(KERN_WARNING DRV_NAME ": %s: Bad fw_pend_list entry!\n",
2831 priv->net_dev->name);
2832 return 0;
2833 }
2834
2835 /* if the last TBD is not done by NIC yet, then packet is
2836 * not ready to be released.
2837 *
2838 */
2839 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
2840 &r);
2841 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
2842 &w);
2843 if (w != txq->next)
2844 printk(KERN_WARNING DRV_NAME ": %s: write index mismatch\n",
2845 priv->net_dev->name);
2846
2847 /*
2848 * txq->next is the index of the last packet written txq->oldest is
2849 * the index of the r is the index of the next packet to be read by
2850 * firmware
2851 */
2852
2853 /*
2854 * Quick graphic to help you visualize the following
2855 * if / else statement
2856 *
2857 * ===>| s---->|===============
2858 * e>|
2859 * | a | b | c | d | e | f | g | h | i | j | k | l
2860 * r---->|
2861 * w
2862 *
2863 * w - updated by driver
2864 * r - updated by firmware
2865 * s - start of oldest BD entry (txq->oldest)
2866 * e - end of oldest BD entry
2867 *
2868 */
2869 if (!((r <= w && (e < r || e >= w)) || (e < r && e >= w))) {
2870 IPW_DEBUG_TX("exit - no processed packets ready to release.\n");
2871 return 0;
2872 }
2873
2874 list_del(element);
2875 DEC_STAT(&priv->fw_pend_stat);
2876
2877#ifdef CONFIG_IPW2100_DEBUG
2878 {
2879 i = txq->oldest;
2880 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2881 &txq->drv[i],
2882 (u32) (txq->nic + i * sizeof(struct ipw2100_bd)),
2883 txq->drv[i].host_addr, txq->drv[i].buf_length);
2884
2885 if (packet->type == DATA) {
2886 i = (i + 1) % txq->entries;
2887
2888 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2889 &txq->drv[i],
2890 (u32) (txq->nic + i *
2891 sizeof(struct ipw2100_bd)),
2892 (u32) txq->drv[i].host_addr,
2893 txq->drv[i].buf_length);
2894 }
2895 }
2896#endif
2897
2898 switch (packet->type) {
2899 case DATA:
2900 if (txq->drv[txq->oldest].status.info.fields.txType != 0)
2901 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2902 "Expecting DATA TBD but pulled "
2903 "something else: ids %d=%d.\n",
2904 priv->net_dev->name, txq->oldest, packet->index);
2905
2906 /* DATA packet; we have to unmap and free the SKB */
2907 for (i = 0; i < frag_num; i++) {
2908 tbd = &txq->drv[(packet->index + 1 + i) % txq->entries];
2909
2910 IPW_DEBUG_TX("TX%d P=%08x L=%d\n",
2911 (packet->index + 1 + i) % txq->entries,
2912 tbd->host_addr, tbd->buf_length);
2913
2914 dma_unmap_single(&priv->pci_dev->dev, tbd->host_addr,
2915 tbd->buf_length, DMA_TO_DEVICE);
2916 }
2917
2918 libipw_txb_free(packet->info.d_struct.txb);
2919 packet->info.d_struct.txb = NULL;
2920
2921 list_add_tail(element, &priv->tx_free_list);
2922 INC_STAT(&priv->tx_free_stat);
2923
2924 /* We have a free slot in the Tx queue, so wake up the
2925 * transmit layer if it is stopped. */
2926 if (priv->status & STATUS_ASSOCIATED)
2927 netif_wake_queue(priv->net_dev);
2928
2929 /* A packet was processed by the hardware, so update the
2930 * watchdog */
2931 netif_trans_update(priv->net_dev);
2932
2933 break;
2934
2935 case COMMAND:
2936 if (txq->drv[txq->oldest].status.info.fields.txType != 1)
2937 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2938 "Expecting COMMAND TBD but pulled "
2939 "something else: ids %d=%d.\n",
2940 priv->net_dev->name, txq->oldest, packet->index);
2941
2942#ifdef CONFIG_IPW2100_DEBUG
2943 if (packet->info.c_struct.cmd->host_command_reg <
2944 ARRAY_SIZE(command_types))
2945 IPW_DEBUG_TX("Command '%s (%d)' processed: %d.\n",
2946 command_types[packet->info.c_struct.cmd->
2947 host_command_reg],
2948 packet->info.c_struct.cmd->
2949 host_command_reg,
2950 packet->info.c_struct.cmd->cmd_status_reg);
2951#endif
2952
2953 list_add_tail(element, &priv->msg_free_list);
2954 INC_STAT(&priv->msg_free_stat);
2955 break;
2956 }
2957
2958 /* advance oldest used TBD pointer to start of next entry */
2959 txq->oldest = (e + 1) % txq->entries;
2960 /* increase available TBDs number */
2961 txq->available += descriptors_used;
2962 SET_STAT(&priv->txq_stat, txq->available);
2963
2964 IPW_DEBUG_TX("packet latency (send to process) %ld jiffies\n",
2965 jiffies - packet->jiffy_start);
2966
2967 return (!list_empty(&priv->fw_pend_list));
2968}
2969
2970static inline void __ipw2100_tx_complete(struct ipw2100_priv *priv)
2971{
2972 int i = 0;
2973
2974 while (__ipw2100_tx_process(priv) && i < 200)
2975 i++;
2976
2977 if (i == 200) {
2978 printk(KERN_WARNING DRV_NAME ": "
2979 "%s: Driver is running slow (%d iters).\n",
2980 priv->net_dev->name, i);
2981 }
2982}
2983
2984static void ipw2100_tx_send_commands(struct ipw2100_priv *priv)
2985{
2986 struct list_head *element;
2987 struct ipw2100_tx_packet *packet;
2988 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2989 struct ipw2100_bd *tbd;
2990 int next = txq->next;
2991
2992 while (!list_empty(&priv->msg_pend_list)) {
2993 /* if there isn't enough space in TBD queue, then
2994 * don't stuff a new one in.
2995 * NOTE: 3 are needed as a command will take one,
2996 * and there is a minimum of 2 that must be
2997 * maintained between the r and w indexes
2998 */
2999 if (txq->available <= 3) {
3000 IPW_DEBUG_TX("no room in tx_queue\n");
3001 break;
3002 }
3003
3004 element = priv->msg_pend_list.next;
3005 list_del(element);
3006 DEC_STAT(&priv->msg_pend_stat);
3007
3008 packet = list_entry(element, struct ipw2100_tx_packet, list);
3009
3010 IPW_DEBUG_TX("using TBD at virt=%p, phys=%04X\n",
3011 &txq->drv[txq->next],
3012 (u32) (txq->nic + txq->next *
3013 sizeof(struct ipw2100_bd)));
3014
3015 packet->index = txq->next;
3016
3017 tbd = &txq->drv[txq->next];
3018
3019 /* initialize TBD */
3020 tbd->host_addr = packet->info.c_struct.cmd_phys;
3021 tbd->buf_length = sizeof(struct ipw2100_cmd_header);
3022 /* not marking number of fragments causes problems
3023 * with f/w debug version */
3024 tbd->num_fragments = 1;
3025 tbd->status.info.field =
3026 IPW_BD_STATUS_TX_FRAME_COMMAND |
3027 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
3028
3029 /* update TBD queue counters */
3030 txq->next++;
3031 txq->next %= txq->entries;
3032 txq->available--;
3033 DEC_STAT(&priv->txq_stat);
3034
3035 list_add_tail(element, &priv->fw_pend_list);
3036 INC_STAT(&priv->fw_pend_stat);
3037 }
3038
3039 if (txq->next != next) {
3040 /* kick off the DMA by notifying firmware the
3041 * write index has moved; make sure TBD stores are sync'd */
3042 wmb();
3043 write_register(priv->net_dev,
3044 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3045 txq->next);
3046 }
3047}
3048
3049/*
3050 * ipw2100_tx_send_data
3051 *
3052 */
3053static void ipw2100_tx_send_data(struct ipw2100_priv *priv)
3054{
3055 struct list_head *element;
3056 struct ipw2100_tx_packet *packet;
3057 struct ipw2100_bd_queue *txq = &priv->tx_queue;
3058 struct ipw2100_bd *tbd;
3059 int next = txq->next;
3060 int i = 0;
3061 struct ipw2100_data_header *ipw_hdr;
3062 struct libipw_hdr_3addr *hdr;
3063
3064 while (!list_empty(&priv->tx_pend_list)) {
3065 /* if there isn't enough space in TBD queue, then
3066 * don't stuff a new one in.
3067 * NOTE: 4 are needed as a data will take two,
3068 * and there is a minimum of 2 that must be
3069 * maintained between the r and w indexes
3070 */
3071 element = priv->tx_pend_list.next;
3072 packet = list_entry(element, struct ipw2100_tx_packet, list);
3073
3074 if (unlikely(1 + packet->info.d_struct.txb->nr_frags >
3075 IPW_MAX_BDS)) {
3076 /* TODO: Support merging buffers if more than
3077 * IPW_MAX_BDS are used */
3078 IPW_DEBUG_INFO("%s: Maximum BD threshold exceeded. "
3079 "Increase fragmentation level.\n",
3080 priv->net_dev->name);
3081 }
3082
3083 if (txq->available <= 3 + packet->info.d_struct.txb->nr_frags) {
3084 IPW_DEBUG_TX("no room in tx_queue\n");
3085 break;
3086 }
3087
3088 list_del(element);
3089 DEC_STAT(&priv->tx_pend_stat);
3090
3091 tbd = &txq->drv[txq->next];
3092
3093 packet->index = txq->next;
3094
3095 ipw_hdr = packet->info.d_struct.data;
3096 hdr = (struct libipw_hdr_3addr *)packet->info.d_struct.txb->
3097 fragments[0]->data;
3098
3099 if (priv->ieee->iw_mode == IW_MODE_INFRA) {
3100 /* To DS: Addr1 = BSSID, Addr2 = SA,
3101 Addr3 = DA */
3102 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3103 memcpy(ipw_hdr->dst_addr, hdr->addr3, ETH_ALEN);
3104 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
3105 /* not From/To DS: Addr1 = DA, Addr2 = SA,
3106 Addr3 = BSSID */
3107 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3108 memcpy(ipw_hdr->dst_addr, hdr->addr1, ETH_ALEN);
3109 }
3110
3111 ipw_hdr->host_command_reg = SEND;
3112 ipw_hdr->host_command_reg1 = 0;
3113
3114 /* For now we only support host based encryption */
3115 ipw_hdr->needs_encryption = 0;
3116 ipw_hdr->encrypted = packet->info.d_struct.txb->encrypted;
3117 if (packet->info.d_struct.txb->nr_frags > 1)
3118 ipw_hdr->fragment_size =
3119 packet->info.d_struct.txb->frag_size -
3120 LIBIPW_3ADDR_LEN;
3121 else
3122 ipw_hdr->fragment_size = 0;
3123
3124 tbd->host_addr = packet->info.d_struct.data_phys;
3125 tbd->buf_length = sizeof(struct ipw2100_data_header);
3126 tbd->num_fragments = 1 + packet->info.d_struct.txb->nr_frags;
3127 tbd->status.info.field =
3128 IPW_BD_STATUS_TX_FRAME_802_3 |
3129 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3130 txq->next++;
3131 txq->next %= txq->entries;
3132
3133 IPW_DEBUG_TX("data header tbd TX%d P=%08x L=%d\n",
3134 packet->index, tbd->host_addr, tbd->buf_length);
3135#ifdef CONFIG_IPW2100_DEBUG
3136 if (packet->info.d_struct.txb->nr_frags > 1)
3137 IPW_DEBUG_FRAG("fragment Tx: %d frames\n",
3138 packet->info.d_struct.txb->nr_frags);
3139#endif
3140
3141 for (i = 0; i < packet->info.d_struct.txb->nr_frags; i++) {
3142 tbd = &txq->drv[txq->next];
3143 if (i == packet->info.d_struct.txb->nr_frags - 1)
3144 tbd->status.info.field =
3145 IPW_BD_STATUS_TX_FRAME_802_3 |
3146 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
3147 else
3148 tbd->status.info.field =
3149 IPW_BD_STATUS_TX_FRAME_802_3 |
3150 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3151
3152 tbd->buf_length = packet->info.d_struct.txb->
3153 fragments[i]->len - LIBIPW_3ADDR_LEN;
3154
3155 tbd->host_addr = dma_map_single(&priv->pci_dev->dev,
3156 packet->info.d_struct.
3157 txb->fragments[i]->data +
3158 LIBIPW_3ADDR_LEN,
3159 tbd->buf_length,
3160 DMA_TO_DEVICE);
3161 if (dma_mapping_error(&priv->pci_dev->dev, tbd->host_addr)) {
3162 IPW_DEBUG_TX("dma mapping error\n");
3163 break;
3164 }
3165
3166 IPW_DEBUG_TX("data frag tbd TX%d P=%08x L=%d\n",
3167 txq->next, tbd->host_addr,
3168 tbd->buf_length);
3169
3170 dma_sync_single_for_device(&priv->pci_dev->dev,
3171 tbd->host_addr,
3172 tbd->buf_length,
3173 DMA_TO_DEVICE);
3174
3175 txq->next++;
3176 txq->next %= txq->entries;
3177 }
3178
3179 txq->available -= 1 + packet->info.d_struct.txb->nr_frags;
3180 SET_STAT(&priv->txq_stat, txq->available);
3181
3182 list_add_tail(element, &priv->fw_pend_list);
3183 INC_STAT(&priv->fw_pend_stat);
3184 }
3185
3186 if (txq->next != next) {
3187 /* kick off the DMA by notifying firmware the
3188 * write index has moved; make sure TBD stores are sync'd */
3189 write_register(priv->net_dev,
3190 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3191 txq->next);
3192 }
3193}
3194
3195static void ipw2100_irq_tasklet(struct tasklet_struct *t)
3196{
3197 struct ipw2100_priv *priv = from_tasklet(priv, t, irq_tasklet);
3198 struct net_device *dev = priv->net_dev;
3199 unsigned long flags;
3200 u32 inta, tmp;
3201
3202 spin_lock_irqsave(&priv->low_lock, flags);
3203 ipw2100_disable_interrupts(priv);
3204
3205 read_register(dev, IPW_REG_INTA, &inta);
3206
3207 IPW_DEBUG_ISR("enter - INTA: 0x%08lX\n",
3208 (unsigned long)inta & IPW_INTERRUPT_MASK);
3209
3210 priv->in_isr++;
3211 priv->interrupts++;
3212
3213 /* We do not loop and keep polling for more interrupts as this
3214 * is frowned upon and doesn't play nicely with other potentially
3215 * chained IRQs */
3216 IPW_DEBUG_ISR("INTA: 0x%08lX\n",
3217 (unsigned long)inta & IPW_INTERRUPT_MASK);
3218
3219 if (inta & IPW2100_INTA_FATAL_ERROR) {
3220 printk(KERN_WARNING DRV_NAME
3221 ": Fatal interrupt. Scheduling firmware restart.\n");
3222 priv->inta_other++;
3223 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FATAL_ERROR);
3224
3225 read_nic_dword(dev, IPW_NIC_FATAL_ERROR, &priv->fatal_error);
3226 IPW_DEBUG_INFO("%s: Fatal error value: 0x%08X\n",
3227 priv->net_dev->name, priv->fatal_error);
3228
3229 read_nic_dword(dev, IPW_ERROR_ADDR(priv->fatal_error), &tmp);
3230 IPW_DEBUG_INFO("%s: Fatal error address value: 0x%08X\n",
3231 priv->net_dev->name, tmp);
3232
3233 /* Wake up any sleeping jobs */
3234 schedule_reset(priv);
3235 }
3236
3237 if (inta & IPW2100_INTA_PARITY_ERROR) {
3238 printk(KERN_ERR DRV_NAME
3239 ": ***** PARITY ERROR INTERRUPT !!!!\n");
3240 priv->inta_other++;
3241 write_register(dev, IPW_REG_INTA, IPW2100_INTA_PARITY_ERROR);
3242 }
3243
3244 if (inta & IPW2100_INTA_RX_TRANSFER) {
3245 IPW_DEBUG_ISR("RX interrupt\n");
3246
3247 priv->rx_interrupts++;
3248
3249 write_register(dev, IPW_REG_INTA, IPW2100_INTA_RX_TRANSFER);
3250
3251 __ipw2100_rx_process(priv);
3252 __ipw2100_tx_complete(priv);
3253 }
3254
3255 if (inta & IPW2100_INTA_TX_TRANSFER) {
3256 IPW_DEBUG_ISR("TX interrupt\n");
3257
3258 priv->tx_interrupts++;
3259
3260 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_TRANSFER);
3261
3262 __ipw2100_tx_complete(priv);
3263 ipw2100_tx_send_commands(priv);
3264 ipw2100_tx_send_data(priv);
3265 }
3266
3267 if (inta & IPW2100_INTA_TX_COMPLETE) {
3268 IPW_DEBUG_ISR("TX complete\n");
3269 priv->inta_other++;
3270 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_COMPLETE);
3271
3272 __ipw2100_tx_complete(priv);
3273 }
3274
3275 if (inta & IPW2100_INTA_EVENT_INTERRUPT) {
3276 /* ipw2100_handle_event(dev); */
3277 priv->inta_other++;
3278 write_register(dev, IPW_REG_INTA, IPW2100_INTA_EVENT_INTERRUPT);
3279 }
3280
3281 if (inta & IPW2100_INTA_FW_INIT_DONE) {
3282 IPW_DEBUG_ISR("FW init done interrupt\n");
3283 priv->inta_other++;
3284
3285 read_register(dev, IPW_REG_INTA, &tmp);
3286 if (tmp & (IPW2100_INTA_FATAL_ERROR |
3287 IPW2100_INTA_PARITY_ERROR)) {
3288 write_register(dev, IPW_REG_INTA,
3289 IPW2100_INTA_FATAL_ERROR |
3290 IPW2100_INTA_PARITY_ERROR);
3291 }
3292
3293 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FW_INIT_DONE);
3294 }
3295
3296 if (inta & IPW2100_INTA_STATUS_CHANGE) {
3297 IPW_DEBUG_ISR("Status change interrupt\n");
3298 priv->inta_other++;
3299 write_register(dev, IPW_REG_INTA, IPW2100_INTA_STATUS_CHANGE);
3300 }
3301
3302 if (inta & IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE) {
3303 IPW_DEBUG_ISR("slave host mode interrupt\n");
3304 priv->inta_other++;
3305 write_register(dev, IPW_REG_INTA,
3306 IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE);
3307 }
3308
3309 priv->in_isr--;
3310 ipw2100_enable_interrupts(priv);
3311
3312 spin_unlock_irqrestore(&priv->low_lock, flags);
3313
3314 IPW_DEBUG_ISR("exit\n");
3315}
3316
3317static irqreturn_t ipw2100_interrupt(int irq, void *data)
3318{
3319 struct ipw2100_priv *priv = data;
3320 u32 inta, inta_mask;
3321
3322 if (!data)
3323 return IRQ_NONE;
3324
3325 spin_lock(&priv->low_lock);
3326
3327 /* We check to see if we should be ignoring interrupts before
3328 * we touch the hardware. During ucode load if we try and handle
3329 * an interrupt we can cause keyboard problems as well as cause
3330 * the ucode to fail to initialize */
3331 if (!(priv->status & STATUS_INT_ENABLED)) {
3332 /* Shared IRQ */
3333 goto none;
3334 }
3335
3336 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
3337 read_register(priv->net_dev, IPW_REG_INTA, &inta);
3338
3339 if (inta == 0xFFFFFFFF) {
3340 /* Hardware disappeared */
3341 printk(KERN_WARNING DRV_NAME ": IRQ INTA == 0xFFFFFFFF\n");
3342 goto none;
3343 }
3344
3345 inta &= IPW_INTERRUPT_MASK;
3346
3347 if (!(inta & inta_mask)) {
3348 /* Shared interrupt */
3349 goto none;
3350 }
3351
3352 /* We disable the hardware interrupt here just to prevent unneeded
3353 * calls to be made. We disable this again within the actual
3354 * work tasklet, so if another part of the code re-enables the
3355 * interrupt, that is fine */
3356 ipw2100_disable_interrupts(priv);
3357
3358 tasklet_schedule(&priv->irq_tasklet);
3359 spin_unlock(&priv->low_lock);
3360
3361 return IRQ_HANDLED;
3362 none:
3363 spin_unlock(&priv->low_lock);
3364 return IRQ_NONE;
3365}
3366
3367static netdev_tx_t ipw2100_tx(struct libipw_txb *txb,
3368 struct net_device *dev, int pri)
3369{
3370 struct ipw2100_priv *priv = libipw_priv(dev);
3371 struct list_head *element;
3372 struct ipw2100_tx_packet *packet;
3373 unsigned long flags;
3374
3375 spin_lock_irqsave(&priv->low_lock, flags);
3376
3377 if (!(priv->status & STATUS_ASSOCIATED)) {
3378 IPW_DEBUG_INFO("Can not transmit when not connected.\n");
3379 priv->net_dev->stats.tx_carrier_errors++;
3380 netif_stop_queue(dev);
3381 goto fail_unlock;
3382 }
3383
3384 if (list_empty(&priv->tx_free_list))
3385 goto fail_unlock;
3386
3387 element = priv->tx_free_list.next;
3388 packet = list_entry(element, struct ipw2100_tx_packet, list);
3389
3390 packet->info.d_struct.txb = txb;
3391
3392 IPW_DEBUG_TX("Sending fragment (%d bytes):\n", txb->fragments[0]->len);
3393 printk_buf(IPW_DL_TX, txb->fragments[0]->data, txb->fragments[0]->len);
3394
3395 packet->jiffy_start = jiffies;
3396
3397 list_del(element);
3398 DEC_STAT(&priv->tx_free_stat);
3399
3400 list_add_tail(element, &priv->tx_pend_list);
3401 INC_STAT(&priv->tx_pend_stat);
3402
3403 ipw2100_tx_send_data(priv);
3404
3405 spin_unlock_irqrestore(&priv->low_lock, flags);
3406 return NETDEV_TX_OK;
3407
3408fail_unlock:
3409 netif_stop_queue(dev);
3410 spin_unlock_irqrestore(&priv->low_lock, flags);
3411 return NETDEV_TX_BUSY;
3412}
3413
3414static int ipw2100_msg_allocate(struct ipw2100_priv *priv)
3415{
3416 int i, j, err = -EINVAL;
3417 void *v;
3418 dma_addr_t p;
3419
3420 priv->msg_buffers =
3421 kmalloc_array(IPW_COMMAND_POOL_SIZE,
3422 sizeof(struct ipw2100_tx_packet),
3423 GFP_KERNEL);
3424 if (!priv->msg_buffers)
3425 return -ENOMEM;
3426
3427 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3428 v = dma_alloc_coherent(&priv->pci_dev->dev,
3429 sizeof(struct ipw2100_cmd_header), &p,
3430 GFP_KERNEL);
3431 if (!v) {
3432 printk(KERN_ERR DRV_NAME ": "
3433 "%s: PCI alloc failed for msg "
3434 "buffers.\n", priv->net_dev->name);
3435 err = -ENOMEM;
3436 break;
3437 }
3438
3439 priv->msg_buffers[i].type = COMMAND;
3440 priv->msg_buffers[i].info.c_struct.cmd =
3441 (struct ipw2100_cmd_header *)v;
3442 priv->msg_buffers[i].info.c_struct.cmd_phys = p;
3443 }
3444
3445 if (i == IPW_COMMAND_POOL_SIZE)
3446 return 0;
3447
3448 for (j = 0; j < i; j++) {
3449 dma_free_coherent(&priv->pci_dev->dev,
3450 sizeof(struct ipw2100_cmd_header),
3451 priv->msg_buffers[j].info.c_struct.cmd,
3452 priv->msg_buffers[j].info.c_struct.cmd_phys);
3453 }
3454
3455 kfree(priv->msg_buffers);
3456 priv->msg_buffers = NULL;
3457
3458 return err;
3459}
3460
3461static int ipw2100_msg_initialize(struct ipw2100_priv *priv)
3462{
3463 int i;
3464
3465 INIT_LIST_HEAD(&priv->msg_free_list);
3466 INIT_LIST_HEAD(&priv->msg_pend_list);
3467
3468 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++)
3469 list_add_tail(&priv->msg_buffers[i].list, &priv->msg_free_list);
3470 SET_STAT(&priv->msg_free_stat, i);
3471
3472 return 0;
3473}
3474
3475static void ipw2100_msg_free(struct ipw2100_priv *priv)
3476{
3477 int i;
3478
3479 if (!priv->msg_buffers)
3480 return;
3481
3482 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3483 dma_free_coherent(&priv->pci_dev->dev,
3484 sizeof(struct ipw2100_cmd_header),
3485 priv->msg_buffers[i].info.c_struct.cmd,
3486 priv->msg_buffers[i].info.c_struct.cmd_phys);
3487 }
3488
3489 kfree(priv->msg_buffers);
3490 priv->msg_buffers = NULL;
3491}
3492
3493static ssize_t pci_show(struct device *d, struct device_attribute *attr,
3494 char *buf)
3495{
3496 struct pci_dev *pci_dev = to_pci_dev(d);
3497 char *out = buf;
3498 int i, j;
3499 u32 val;
3500
3501 for (i = 0; i < 16; i++) {
3502 out += sprintf(out, "[%08X] ", i * 16);
3503 for (j = 0; j < 16; j += 4) {
3504 pci_read_config_dword(pci_dev, i * 16 + j, &val);
3505 out += sprintf(out, "%08X ", val);
3506 }
3507 out += sprintf(out, "\n");
3508 }
3509
3510 return out - buf;
3511}
3512
3513static DEVICE_ATTR_RO(pci);
3514
3515static ssize_t cfg_show(struct device *d, struct device_attribute *attr,
3516 char *buf)
3517{
3518 struct ipw2100_priv *p = dev_get_drvdata(d);
3519 return sprintf(buf, "0x%08x\n", (int)p->config);
3520}
3521
3522static DEVICE_ATTR_RO(cfg);
3523
3524static ssize_t status_show(struct device *d, struct device_attribute *attr,
3525 char *buf)
3526{
3527 struct ipw2100_priv *p = dev_get_drvdata(d);
3528 return sprintf(buf, "0x%08x\n", (int)p->status);
3529}
3530
3531static DEVICE_ATTR_RO(status);
3532
3533static ssize_t capability_show(struct device *d, struct device_attribute *attr,
3534 char *buf)
3535{
3536 struct ipw2100_priv *p = dev_get_drvdata(d);
3537 return sprintf(buf, "0x%08x\n", (int)p->capability);
3538}
3539
3540static DEVICE_ATTR_RO(capability);
3541
3542#define IPW2100_REG(x) { IPW_ ##x, #x }
3543static const struct {
3544 u32 addr;
3545 const char *name;
3546} hw_data[] = {
3547IPW2100_REG(REG_GP_CNTRL),
3548 IPW2100_REG(REG_GPIO),
3549 IPW2100_REG(REG_INTA),
3550 IPW2100_REG(REG_INTA_MASK), IPW2100_REG(REG_RESET_REG),};
3551#define IPW2100_NIC(x, s) { x, #x, s }
3552static const struct {
3553 u32 addr;
3554 const char *name;
3555 size_t size;
3556} nic_data[] = {
3557IPW2100_NIC(IPW2100_CONTROL_REG, 2),
3558 IPW2100_NIC(0x210014, 1), IPW2100_NIC(0x210000, 1),};
3559#define IPW2100_ORD(x, d) { IPW_ORD_ ##x, #x, d }
3560static const struct {
3561 u8 index;
3562 const char *name;
3563 const char *desc;
3564} ord_data[] = {
3565IPW2100_ORD(STAT_TX_HOST_REQUESTS, "requested Host Tx's (MSDU)"),
3566 IPW2100_ORD(STAT_TX_HOST_COMPLETE,
3567 "successful Host Tx's (MSDU)"),
3568 IPW2100_ORD(STAT_TX_DIR_DATA,
3569 "successful Directed Tx's (MSDU)"),
3570 IPW2100_ORD(STAT_TX_DIR_DATA1,
3571 "successful Directed Tx's (MSDU) @ 1MB"),
3572 IPW2100_ORD(STAT_TX_DIR_DATA2,
3573 "successful Directed Tx's (MSDU) @ 2MB"),
3574 IPW2100_ORD(STAT_TX_DIR_DATA5_5,
3575 "successful Directed Tx's (MSDU) @ 5_5MB"),
3576 IPW2100_ORD(STAT_TX_DIR_DATA11,
3577 "successful Directed Tx's (MSDU) @ 11MB"),
3578 IPW2100_ORD(STAT_TX_NODIR_DATA1,
3579 "successful Non_Directed Tx's (MSDU) @ 1MB"),
3580 IPW2100_ORD(STAT_TX_NODIR_DATA2,
3581 "successful Non_Directed Tx's (MSDU) @ 2MB"),
3582 IPW2100_ORD(STAT_TX_NODIR_DATA5_5,
3583 "successful Non_Directed Tx's (MSDU) @ 5.5MB"),
3584 IPW2100_ORD(STAT_TX_NODIR_DATA11,
3585 "successful Non_Directed Tx's (MSDU) @ 11MB"),
3586 IPW2100_ORD(STAT_NULL_DATA, "successful NULL data Tx's"),
3587 IPW2100_ORD(STAT_TX_RTS, "successful Tx RTS"),
3588 IPW2100_ORD(STAT_TX_CTS, "successful Tx CTS"),
3589 IPW2100_ORD(STAT_TX_ACK, "successful Tx ACK"),
3590 IPW2100_ORD(STAT_TX_ASSN, "successful Association Tx's"),
3591 IPW2100_ORD(STAT_TX_ASSN_RESP,
3592 "successful Association response Tx's"),
3593 IPW2100_ORD(STAT_TX_REASSN,
3594 "successful Reassociation Tx's"),
3595 IPW2100_ORD(STAT_TX_REASSN_RESP,
3596 "successful Reassociation response Tx's"),
3597 IPW2100_ORD(STAT_TX_PROBE,
3598 "probes successfully transmitted"),
3599 IPW2100_ORD(STAT_TX_PROBE_RESP,
3600 "probe responses successfully transmitted"),
3601 IPW2100_ORD(STAT_TX_BEACON, "tx beacon"),
3602 IPW2100_ORD(STAT_TX_ATIM, "Tx ATIM"),
3603 IPW2100_ORD(STAT_TX_DISASSN,
3604 "successful Disassociation TX"),
3605 IPW2100_ORD(STAT_TX_AUTH, "successful Authentication Tx"),
3606 IPW2100_ORD(STAT_TX_DEAUTH,
3607 "successful Deauthentication TX"),
3608 IPW2100_ORD(STAT_TX_TOTAL_BYTES,
3609 "Total successful Tx data bytes"),
3610 IPW2100_ORD(STAT_TX_RETRIES, "Tx retries"),
3611 IPW2100_ORD(STAT_TX_RETRY1, "Tx retries at 1MBPS"),
3612 IPW2100_ORD(STAT_TX_RETRY2, "Tx retries at 2MBPS"),
3613 IPW2100_ORD(STAT_TX_RETRY5_5, "Tx retries at 5.5MBPS"),
3614 IPW2100_ORD(STAT_TX_RETRY11, "Tx retries at 11MBPS"),
3615 IPW2100_ORD(STAT_TX_FAILURES, "Tx Failures"),
3616 IPW2100_ORD(STAT_TX_MAX_TRIES_IN_HOP,
3617 "times max tries in a hop failed"),
3618 IPW2100_ORD(STAT_TX_DISASSN_FAIL,
3619 "times disassociation failed"),
3620 IPW2100_ORD(STAT_TX_ERR_CTS, "missed/bad CTS frames"),
3621 IPW2100_ORD(STAT_TX_ERR_ACK, "tx err due to acks"),
3622 IPW2100_ORD(STAT_RX_HOST, "packets passed to host"),
3623 IPW2100_ORD(STAT_RX_DIR_DATA, "directed packets"),
3624 IPW2100_ORD(STAT_RX_DIR_DATA1, "directed packets at 1MB"),
3625 IPW2100_ORD(STAT_RX_DIR_DATA2, "directed packets at 2MB"),
3626 IPW2100_ORD(STAT_RX_DIR_DATA5_5,
3627 "directed packets at 5.5MB"),
3628 IPW2100_ORD(STAT_RX_DIR_DATA11, "directed packets at 11MB"),
3629 IPW2100_ORD(STAT_RX_NODIR_DATA, "nondirected packets"),
3630 IPW2100_ORD(STAT_RX_NODIR_DATA1,
3631 "nondirected packets at 1MB"),
3632 IPW2100_ORD(STAT_RX_NODIR_DATA2,
3633 "nondirected packets at 2MB"),
3634 IPW2100_ORD(STAT_RX_NODIR_DATA5_5,
3635 "nondirected packets at 5.5MB"),
3636 IPW2100_ORD(STAT_RX_NODIR_DATA11,
3637 "nondirected packets at 11MB"),
3638 IPW2100_ORD(STAT_RX_NULL_DATA, "null data rx's"),
3639 IPW2100_ORD(STAT_RX_RTS, "Rx RTS"), IPW2100_ORD(STAT_RX_CTS,
3640 "Rx CTS"),
3641 IPW2100_ORD(STAT_RX_ACK, "Rx ACK"),
3642 IPW2100_ORD(STAT_RX_CFEND, "Rx CF End"),
3643 IPW2100_ORD(STAT_RX_CFEND_ACK, "Rx CF End + CF Ack"),
3644 IPW2100_ORD(STAT_RX_ASSN, "Association Rx's"),
3645 IPW2100_ORD(STAT_RX_ASSN_RESP, "Association response Rx's"),
3646 IPW2100_ORD(STAT_RX_REASSN, "Reassociation Rx's"),
3647 IPW2100_ORD(STAT_RX_REASSN_RESP,
3648 "Reassociation response Rx's"),
3649 IPW2100_ORD(STAT_RX_PROBE, "probe Rx's"),
3650 IPW2100_ORD(STAT_RX_PROBE_RESP, "probe response Rx's"),
3651 IPW2100_ORD(STAT_RX_BEACON, "Rx beacon"),
3652 IPW2100_ORD(STAT_RX_ATIM, "Rx ATIM"),
3653 IPW2100_ORD(STAT_RX_DISASSN, "disassociation Rx"),
3654 IPW2100_ORD(STAT_RX_AUTH, "authentication Rx"),
3655 IPW2100_ORD(STAT_RX_DEAUTH, "deauthentication Rx"),
3656 IPW2100_ORD(STAT_RX_TOTAL_BYTES,
3657 "Total rx data bytes received"),
3658 IPW2100_ORD(STAT_RX_ERR_CRC, "packets with Rx CRC error"),
3659 IPW2100_ORD(STAT_RX_ERR_CRC1, "Rx CRC errors at 1MB"),
3660 IPW2100_ORD(STAT_RX_ERR_CRC2, "Rx CRC errors at 2MB"),
3661 IPW2100_ORD(STAT_RX_ERR_CRC5_5, "Rx CRC errors at 5.5MB"),
3662 IPW2100_ORD(STAT_RX_ERR_CRC11, "Rx CRC errors at 11MB"),
3663 IPW2100_ORD(STAT_RX_DUPLICATE1,
3664 "duplicate rx packets at 1MB"),
3665 IPW2100_ORD(STAT_RX_DUPLICATE2,
3666 "duplicate rx packets at 2MB"),
3667 IPW2100_ORD(STAT_RX_DUPLICATE5_5,
3668 "duplicate rx packets at 5.5MB"),
3669 IPW2100_ORD(STAT_RX_DUPLICATE11,
3670 "duplicate rx packets at 11MB"),
3671 IPW2100_ORD(STAT_RX_DUPLICATE, "duplicate rx packets"),
3672 IPW2100_ORD(PERS_DB_LOCK, "locking fw permanent db"),
3673 IPW2100_ORD(PERS_DB_SIZE, "size of fw permanent db"),
3674 IPW2100_ORD(PERS_DB_ADDR, "address of fw permanent db"),
3675 IPW2100_ORD(STAT_RX_INVALID_PROTOCOL,
3676 "rx frames with invalid protocol"),
3677 IPW2100_ORD(SYS_BOOT_TIME, "Boot time"),
3678 IPW2100_ORD(STAT_RX_NO_BUFFER,
3679 "rx frames rejected due to no buffer"),
3680 IPW2100_ORD(STAT_RX_MISSING_FRAG,
3681 "rx frames dropped due to missing fragment"),
3682 IPW2100_ORD(STAT_RX_ORPHAN_FRAG,
3683 "rx frames dropped due to non-sequential fragment"),
3684 IPW2100_ORD(STAT_RX_ORPHAN_FRAME,
3685 "rx frames dropped due to unmatched 1st frame"),
3686 IPW2100_ORD(STAT_RX_FRAG_AGEOUT,
3687 "rx frames dropped due to uncompleted frame"),
3688 IPW2100_ORD(STAT_RX_ICV_ERRORS,
3689 "ICV errors during decryption"),
3690 IPW2100_ORD(STAT_PSP_SUSPENSION, "times adapter suspended"),
3691 IPW2100_ORD(STAT_PSP_BCN_TIMEOUT, "beacon timeout"),
3692 IPW2100_ORD(STAT_PSP_POLL_TIMEOUT,
3693 "poll response timeouts"),
3694 IPW2100_ORD(STAT_PSP_NONDIR_TIMEOUT,
3695 "timeouts waiting for last {broad,multi}cast pkt"),
3696 IPW2100_ORD(STAT_PSP_RX_DTIMS, "PSP DTIMs received"),
3697 IPW2100_ORD(STAT_PSP_RX_TIMS, "PSP TIMs received"),
3698 IPW2100_ORD(STAT_PSP_STATION_ID, "PSP Station ID"),
3699 IPW2100_ORD(LAST_ASSN_TIME, "RTC time of last association"),
3700 IPW2100_ORD(STAT_PERCENT_MISSED_BCNS,
3701 "current calculation of % missed beacons"),
3702 IPW2100_ORD(STAT_PERCENT_RETRIES,
3703 "current calculation of % missed tx retries"),
3704 IPW2100_ORD(ASSOCIATED_AP_PTR,
3705 "0 if not associated, else pointer to AP table entry"),
3706 IPW2100_ORD(AVAILABLE_AP_CNT,
3707 "AP's described in the AP table"),
3708 IPW2100_ORD(AP_LIST_PTR, "Ptr to list of available APs"),
3709 IPW2100_ORD(STAT_AP_ASSNS, "associations"),
3710 IPW2100_ORD(STAT_ASSN_FAIL, "association failures"),
3711 IPW2100_ORD(STAT_ASSN_RESP_FAIL,
3712 "failures due to response fail"),
3713 IPW2100_ORD(STAT_FULL_SCANS, "full scans"),
3714 IPW2100_ORD(CARD_DISABLED, "Card Disabled"),
3715 IPW2100_ORD(STAT_ROAM_INHIBIT,
3716 "times roaming was inhibited due to activity"),
3717 IPW2100_ORD(RSSI_AT_ASSN,
3718 "RSSI of associated AP at time of association"),
3719 IPW2100_ORD(STAT_ASSN_CAUSE1,
3720 "reassociation: no probe response or TX on hop"),
3721 IPW2100_ORD(STAT_ASSN_CAUSE2,
3722 "reassociation: poor tx/rx quality"),
3723 IPW2100_ORD(STAT_ASSN_CAUSE3,
3724 "reassociation: tx/rx quality (excessive AP load"),
3725 IPW2100_ORD(STAT_ASSN_CAUSE4,
3726 "reassociation: AP RSSI level"),
3727 IPW2100_ORD(STAT_ASSN_CAUSE5,
3728 "reassociations due to load leveling"),
3729 IPW2100_ORD(STAT_AUTH_FAIL, "times authentication failed"),
3730 IPW2100_ORD(STAT_AUTH_RESP_FAIL,
3731 "times authentication response failed"),
3732 IPW2100_ORD(STATION_TABLE_CNT,
3733 "entries in association table"),
3734 IPW2100_ORD(RSSI_AVG_CURR, "Current avg RSSI"),
3735 IPW2100_ORD(POWER_MGMT_MODE, "Power mode - 0=CAM, 1=PSP"),
3736 IPW2100_ORD(COUNTRY_CODE,
3737 "IEEE country code as recv'd from beacon"),
3738 IPW2100_ORD(COUNTRY_CHANNELS,
3739 "channels supported by country"),
3740 IPW2100_ORD(RESET_CNT, "adapter resets (warm)"),
3741 IPW2100_ORD(BEACON_INTERVAL, "Beacon interval"),
3742 IPW2100_ORD(ANTENNA_DIVERSITY,
3743 "TRUE if antenna diversity is disabled"),
3744 IPW2100_ORD(DTIM_PERIOD, "beacon intervals between DTIMs"),
3745 IPW2100_ORD(OUR_FREQ,
3746 "current radio freq lower digits - channel ID"),
3747 IPW2100_ORD(RTC_TIME, "current RTC time"),
3748 IPW2100_ORD(PORT_TYPE, "operating mode"),
3749 IPW2100_ORD(CURRENT_TX_RATE, "current tx rate"),
3750 IPW2100_ORD(SUPPORTED_RATES, "supported tx rates"),
3751 IPW2100_ORD(ATIM_WINDOW, "current ATIM Window"),
3752 IPW2100_ORD(BASIC_RATES, "basic tx rates"),
3753 IPW2100_ORD(NIC_HIGHEST_RATE, "NIC highest tx rate"),
3754 IPW2100_ORD(AP_HIGHEST_RATE, "AP highest tx rate"),
3755 IPW2100_ORD(CAPABILITIES,
3756 "Management frame capability field"),
3757 IPW2100_ORD(AUTH_TYPE, "Type of authentication"),
3758 IPW2100_ORD(RADIO_TYPE, "Adapter card platform type"),
3759 IPW2100_ORD(RTS_THRESHOLD,
3760 "Min packet length for RTS handshaking"),
3761 IPW2100_ORD(INT_MODE, "International mode"),
3762 IPW2100_ORD(FRAGMENTATION_THRESHOLD,
3763 "protocol frag threshold"),
3764 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_START_ADDRESS,
3765 "EEPROM offset in SRAM"),
3766 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_SIZE,
3767 "EEPROM size in SRAM"),
3768 IPW2100_ORD(EEPROM_SKU_CAPABILITY, "EEPROM SKU Capability"),
3769 IPW2100_ORD(EEPROM_IBSS_11B_CHANNELS,
3770 "EEPROM IBSS 11b channel set"),
3771 IPW2100_ORD(MAC_VERSION, "MAC Version"),
3772 IPW2100_ORD(MAC_REVISION, "MAC Revision"),
3773 IPW2100_ORD(RADIO_VERSION, "Radio Version"),
3774 IPW2100_ORD(NIC_MANF_DATE_TIME, "MANF Date/Time STAMP"),
3775 IPW2100_ORD(UCODE_VERSION, "Ucode Version"),};
3776
3777static ssize_t registers_show(struct device *d, struct device_attribute *attr,
3778 char *buf)
3779{
3780 int i;
3781 struct ipw2100_priv *priv = dev_get_drvdata(d);
3782 struct net_device *dev = priv->net_dev;
3783 char *out = buf;
3784 u32 val = 0;
3785
3786 out += sprintf(out, "%30s [Address ] : Hex\n", "Register");
3787
3788 for (i = 0; i < ARRAY_SIZE(hw_data); i++) {
3789 read_register(dev, hw_data[i].addr, &val);
3790 out += sprintf(out, "%30s [%08X] : %08X\n",
3791 hw_data[i].name, hw_data[i].addr, val);
3792 }
3793
3794 return out - buf;
3795}
3796
3797static DEVICE_ATTR_RO(registers);
3798
3799static ssize_t hardware_show(struct device *d, struct device_attribute *attr,
3800 char *buf)
3801{
3802 struct ipw2100_priv *priv = dev_get_drvdata(d);
3803 struct net_device *dev = priv->net_dev;
3804 char *out = buf;
3805 int i;
3806
3807 out += sprintf(out, "%30s [Address ] : Hex\n", "NIC entry");
3808
3809 for (i = 0; i < ARRAY_SIZE(nic_data); i++) {
3810 u8 tmp8;
3811 u16 tmp16;
3812 u32 tmp32;
3813
3814 switch (nic_data[i].size) {
3815 case 1:
3816 read_nic_byte(dev, nic_data[i].addr, &tmp8);
3817 out += sprintf(out, "%30s [%08X] : %02X\n",
3818 nic_data[i].name, nic_data[i].addr,
3819 tmp8);
3820 break;
3821 case 2:
3822 read_nic_word(dev, nic_data[i].addr, &tmp16);
3823 out += sprintf(out, "%30s [%08X] : %04X\n",
3824 nic_data[i].name, nic_data[i].addr,
3825 tmp16);
3826 break;
3827 case 4:
3828 read_nic_dword(dev, nic_data[i].addr, &tmp32);
3829 out += sprintf(out, "%30s [%08X] : %08X\n",
3830 nic_data[i].name, nic_data[i].addr,
3831 tmp32);
3832 break;
3833 }
3834 }
3835 return out - buf;
3836}
3837
3838static DEVICE_ATTR_RO(hardware);
3839
3840static ssize_t memory_show(struct device *d, struct device_attribute *attr,
3841 char *buf)
3842{
3843 struct ipw2100_priv *priv = dev_get_drvdata(d);
3844 struct net_device *dev = priv->net_dev;
3845 static unsigned long loop = 0;
3846 int len = 0;
3847 u32 buffer[4];
3848 int i;
3849 char line[81];
3850
3851 if (loop >= 0x30000)
3852 loop = 0;
3853
3854 /* sysfs provides us PAGE_SIZE buffer */
3855 while (len < PAGE_SIZE - 128 && loop < 0x30000) {
3856
3857 if (priv->snapshot[0])
3858 for (i = 0; i < 4; i++)
3859 buffer[i] =
3860 *(u32 *) SNAPSHOT_ADDR(loop + i * 4);
3861 else
3862 for (i = 0; i < 4; i++)
3863 read_nic_dword(dev, loop + i * 4, &buffer[i]);
3864
3865 if (priv->dump_raw)
3866 len += sprintf(buf + len,
3867 "%c%c%c%c"
3868 "%c%c%c%c"
3869 "%c%c%c%c"
3870 "%c%c%c%c",
3871 ((u8 *) buffer)[0x0],
3872 ((u8 *) buffer)[0x1],
3873 ((u8 *) buffer)[0x2],
3874 ((u8 *) buffer)[0x3],
3875 ((u8 *) buffer)[0x4],
3876 ((u8 *) buffer)[0x5],
3877 ((u8 *) buffer)[0x6],
3878 ((u8 *) buffer)[0x7],
3879 ((u8 *) buffer)[0x8],
3880 ((u8 *) buffer)[0x9],
3881 ((u8 *) buffer)[0xa],
3882 ((u8 *) buffer)[0xb],
3883 ((u8 *) buffer)[0xc],
3884 ((u8 *) buffer)[0xd],
3885 ((u8 *) buffer)[0xe],
3886 ((u8 *) buffer)[0xf]);
3887 else
3888 len += sprintf(buf + len, "%s\n",
3889 snprint_line(line, sizeof(line),
3890 (u8 *) buffer, 16, loop));
3891 loop += 16;
3892 }
3893
3894 return len;
3895}
3896
3897static ssize_t memory_store(struct device *d, struct device_attribute *attr,
3898 const char *buf, size_t count)
3899{
3900 struct ipw2100_priv *priv = dev_get_drvdata(d);
3901 struct net_device *dev = priv->net_dev;
3902 const char *p = buf;
3903
3904 (void)dev; /* kill unused-var warning for debug-only code */
3905
3906 if (count < 1)
3907 return count;
3908
3909 if (p[0] == '1' ||
3910 (count >= 2 && tolower(p[0]) == 'o' && tolower(p[1]) == 'n')) {
3911 IPW_DEBUG_INFO("%s: Setting memory dump to RAW mode.\n",
3912 dev->name);
3913 priv->dump_raw = 1;
3914
3915 } else if (p[0] == '0' || (count >= 2 && tolower(p[0]) == 'o' &&
3916 tolower(p[1]) == 'f')) {
3917 IPW_DEBUG_INFO("%s: Setting memory dump to HEX mode.\n",
3918 dev->name);
3919 priv->dump_raw = 0;
3920
3921 } else if (tolower(p[0]) == 'r') {
3922 IPW_DEBUG_INFO("%s: Resetting firmware snapshot.\n", dev->name);
3923 ipw2100_snapshot_free(priv);
3924
3925 } else
3926 IPW_DEBUG_INFO("%s: Usage: 0|on = HEX, 1|off = RAW, "
3927 "reset = clear memory snapshot\n", dev->name);
3928
3929 return count;
3930}
3931
3932static DEVICE_ATTR_RW(memory);
3933
3934static ssize_t ordinals_show(struct device *d, struct device_attribute *attr,
3935 char *buf)
3936{
3937 struct ipw2100_priv *priv = dev_get_drvdata(d);
3938 u32 val = 0;
3939 int len = 0;
3940 u32 val_len;
3941 static int loop = 0;
3942
3943 if (priv->status & STATUS_RF_KILL_MASK)
3944 return 0;
3945
3946 if (loop >= ARRAY_SIZE(ord_data))
3947 loop = 0;
3948
3949 /* sysfs provides us PAGE_SIZE buffer */
3950 while (len < PAGE_SIZE - 128 && loop < ARRAY_SIZE(ord_data)) {
3951 val_len = sizeof(u32);
3952
3953 if (ipw2100_get_ordinal(priv, ord_data[loop].index, &val,
3954 &val_len))
3955 len += sprintf(buf + len, "[0x%02X] = ERROR %s\n",
3956 ord_data[loop].index,
3957 ord_data[loop].desc);
3958 else
3959 len += sprintf(buf + len, "[0x%02X] = 0x%08X %s\n",
3960 ord_data[loop].index, val,
3961 ord_data[loop].desc);
3962 loop++;
3963 }
3964
3965 return len;
3966}
3967
3968static DEVICE_ATTR_RO(ordinals);
3969
3970static ssize_t stats_show(struct device *d, struct device_attribute *attr,
3971 char *buf)
3972{
3973 struct ipw2100_priv *priv = dev_get_drvdata(d);
3974 char *out = buf;
3975
3976 out += sprintf(out, "interrupts: %d {tx: %d, rx: %d, other: %d}\n",
3977 priv->interrupts, priv->tx_interrupts,
3978 priv->rx_interrupts, priv->inta_other);
3979 out += sprintf(out, "firmware resets: %d\n", priv->resets);
3980 out += sprintf(out, "firmware hangs: %d\n", priv->hangs);
3981#ifdef CONFIG_IPW2100_DEBUG
3982 out += sprintf(out, "packet mismatch image: %s\n",
3983 priv->snapshot[0] ? "YES" : "NO");
3984#endif
3985
3986 return out - buf;
3987}
3988
3989static DEVICE_ATTR_RO(stats);
3990
3991static int ipw2100_switch_mode(struct ipw2100_priv *priv, u32 mode)
3992{
3993 int err;
3994
3995 if (mode == priv->ieee->iw_mode)
3996 return 0;
3997
3998 err = ipw2100_disable_adapter(priv);
3999 if (err) {
4000 printk(KERN_ERR DRV_NAME ": %s: Could not disable adapter %d\n",
4001 priv->net_dev->name, err);
4002 return err;
4003 }
4004
4005 switch (mode) {
4006 case IW_MODE_INFRA:
4007 priv->net_dev->type = ARPHRD_ETHER;
4008 break;
4009 case IW_MODE_ADHOC:
4010 priv->net_dev->type = ARPHRD_ETHER;
4011 break;
4012#ifdef CONFIG_IPW2100_MONITOR
4013 case IW_MODE_MONITOR:
4014 priv->last_mode = priv->ieee->iw_mode;
4015 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
4016 break;
4017#endif /* CONFIG_IPW2100_MONITOR */
4018 }
4019
4020 priv->ieee->iw_mode = mode;
4021
4022#ifdef CONFIG_PM
4023 /* Indicate ipw2100_download_firmware download firmware
4024 * from disk instead of memory. */
4025 ipw2100_firmware.version = 0;
4026#endif
4027
4028 printk(KERN_INFO "%s: Resetting on mode change.\n", priv->net_dev->name);
4029 priv->reset_backoff = 0;
4030 schedule_reset(priv);
4031
4032 return 0;
4033}
4034
4035static ssize_t internals_show(struct device *d, struct device_attribute *attr,
4036 char *buf)
4037{
4038 struct ipw2100_priv *priv = dev_get_drvdata(d);
4039 int len = 0;
4040
4041#define DUMP_VAR(x,y) len += sprintf(buf + len, # x ": %" y "\n", priv-> x)
4042
4043 if (priv->status & STATUS_ASSOCIATED)
4044 len += sprintf(buf + len, "connected: %llu\n",
4045 ktime_get_boottime_seconds() - priv->connect_start);
4046 else
4047 len += sprintf(buf + len, "not connected\n");
4048
4049 DUMP_VAR(ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx], "p");
4050 DUMP_VAR(status, "08lx");
4051 DUMP_VAR(config, "08lx");
4052 DUMP_VAR(capability, "08lx");
4053
4054 len +=
4055 sprintf(buf + len, "last_rtc: %lu\n",
4056 (unsigned long)priv->last_rtc);
4057
4058 DUMP_VAR(fatal_error, "d");
4059 DUMP_VAR(stop_hang_check, "d");
4060 DUMP_VAR(stop_rf_kill, "d");
4061 DUMP_VAR(messages_sent, "d");
4062
4063 DUMP_VAR(tx_pend_stat.value, "d");
4064 DUMP_VAR(tx_pend_stat.hi, "d");
4065
4066 DUMP_VAR(tx_free_stat.value, "d");
4067 DUMP_VAR(tx_free_stat.lo, "d");
4068
4069 DUMP_VAR(msg_free_stat.value, "d");
4070 DUMP_VAR(msg_free_stat.lo, "d");
4071
4072 DUMP_VAR(msg_pend_stat.value, "d");
4073 DUMP_VAR(msg_pend_stat.hi, "d");
4074
4075 DUMP_VAR(fw_pend_stat.value, "d");
4076 DUMP_VAR(fw_pend_stat.hi, "d");
4077
4078 DUMP_VAR(txq_stat.value, "d");
4079 DUMP_VAR(txq_stat.lo, "d");
4080
4081 DUMP_VAR(ieee->scans, "d");
4082 DUMP_VAR(reset_backoff, "lld");
4083
4084 return len;
4085}
4086
4087static DEVICE_ATTR_RO(internals);
4088
4089static ssize_t bssinfo_show(struct device *d, struct device_attribute *attr,
4090 char *buf)
4091{
4092 struct ipw2100_priv *priv = dev_get_drvdata(d);
4093 char essid[IW_ESSID_MAX_SIZE + 1];
4094 u8 bssid[ETH_ALEN];
4095 u32 chan = 0;
4096 char *out = buf;
4097 unsigned int length;
4098 int ret;
4099
4100 if (priv->status & STATUS_RF_KILL_MASK)
4101 return 0;
4102
4103 memset(essid, 0, sizeof(essid));
4104 memset(bssid, 0, sizeof(bssid));
4105
4106 length = IW_ESSID_MAX_SIZE;
4107 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID, essid, &length);
4108 if (ret)
4109 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4110 __LINE__);
4111
4112 length = sizeof(bssid);
4113 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
4114 bssid, &length);
4115 if (ret)
4116 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4117 __LINE__);
4118
4119 length = sizeof(u32);
4120 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &length);
4121 if (ret)
4122 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4123 __LINE__);
4124
4125 out += sprintf(out, "ESSID: %s\n", essid);
4126 out += sprintf(out, "BSSID: %pM\n", bssid);
4127 out += sprintf(out, "Channel: %d\n", chan);
4128
4129 return out - buf;
4130}
4131
4132static DEVICE_ATTR_RO(bssinfo);
4133
4134#ifdef CONFIG_IPW2100_DEBUG
4135static ssize_t debug_level_show(struct device_driver *d, char *buf)
4136{
4137 return sprintf(buf, "0x%08X\n", ipw2100_debug_level);
4138}
4139
4140static ssize_t debug_level_store(struct device_driver *d,
4141 const char *buf, size_t count)
4142{
4143 u32 val;
4144 int ret;
4145
4146 ret = kstrtou32(buf, 0, &val);
4147 if (ret)
4148 IPW_DEBUG_INFO(": %s is not in hex or decimal form.\n", buf);
4149 else
4150 ipw2100_debug_level = val;
4151
4152 return strnlen(buf, count);
4153}
4154static DRIVER_ATTR_RW(debug_level);
4155#endif /* CONFIG_IPW2100_DEBUG */
4156
4157static ssize_t fatal_error_show(struct device *d,
4158 struct device_attribute *attr, char *buf)
4159{
4160 struct ipw2100_priv *priv = dev_get_drvdata(d);
4161 char *out = buf;
4162 int i;
4163
4164 if (priv->fatal_error)
4165 out += sprintf(out, "0x%08X\n", priv->fatal_error);
4166 else
4167 out += sprintf(out, "0\n");
4168
4169 for (i = 1; i <= IPW2100_ERROR_QUEUE; i++) {
4170 if (!priv->fatal_errors[(priv->fatal_index - i) %
4171 IPW2100_ERROR_QUEUE])
4172 continue;
4173
4174 out += sprintf(out, "%d. 0x%08X\n", i,
4175 priv->fatal_errors[(priv->fatal_index - i) %
4176 IPW2100_ERROR_QUEUE]);
4177 }
4178
4179 return out - buf;
4180}
4181
4182static ssize_t fatal_error_store(struct device *d,
4183 struct device_attribute *attr, const char *buf,
4184 size_t count)
4185{
4186 struct ipw2100_priv *priv = dev_get_drvdata(d);
4187 schedule_reset(priv);
4188 return count;
4189}
4190
4191static DEVICE_ATTR_RW(fatal_error);
4192
4193static ssize_t scan_age_show(struct device *d, struct device_attribute *attr,
4194 char *buf)
4195{
4196 struct ipw2100_priv *priv = dev_get_drvdata(d);
4197 return sprintf(buf, "%d\n", priv->ieee->scan_age);
4198}
4199
4200static ssize_t scan_age_store(struct device *d, struct device_attribute *attr,
4201 const char *buf, size_t count)
4202{
4203 struct ipw2100_priv *priv = dev_get_drvdata(d);
4204 struct net_device *dev = priv->net_dev;
4205 unsigned long val;
4206 int ret;
4207
4208 (void)dev; /* kill unused-var warning for debug-only code */
4209
4210 IPW_DEBUG_INFO("enter\n");
4211
4212 ret = kstrtoul(buf, 0, &val);
4213 if (ret) {
4214 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
4215 } else {
4216 priv->ieee->scan_age = val;
4217 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
4218 }
4219
4220 IPW_DEBUG_INFO("exit\n");
4221 return strnlen(buf, count);
4222}
4223
4224static DEVICE_ATTR_RW(scan_age);
4225
4226static ssize_t rf_kill_show(struct device *d, struct device_attribute *attr,
4227 char *buf)
4228{
4229 /* 0 - RF kill not enabled
4230 1 - SW based RF kill active (sysfs)
4231 2 - HW based RF kill active
4232 3 - Both HW and SW baed RF kill active */
4233 struct ipw2100_priv *priv = dev_get_drvdata(d);
4234 int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
4235 (rf_kill_active(priv) ? 0x2 : 0x0);
4236 return sprintf(buf, "%i\n", val);
4237}
4238
4239static int ipw_radio_kill_sw(struct ipw2100_priv *priv, int disable_radio)
4240{
4241 if ((disable_radio ? 1 : 0) ==
4242 (priv->status & STATUS_RF_KILL_SW ? 1 : 0))
4243 return 0;
4244
4245 IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n",
4246 disable_radio ? "OFF" : "ON");
4247
4248 mutex_lock(&priv->action_mutex);
4249
4250 if (disable_radio) {
4251 priv->status |= STATUS_RF_KILL_SW;
4252 ipw2100_down(priv);
4253 } else {
4254 priv->status &= ~STATUS_RF_KILL_SW;
4255 if (rf_kill_active(priv)) {
4256 IPW_DEBUG_RF_KILL("Can not turn radio back on - "
4257 "disabled by HW switch\n");
4258 /* Make sure the RF_KILL check timer is running */
4259 priv->stop_rf_kill = 0;
4260 mod_delayed_work(system_wq, &priv->rf_kill,
4261 round_jiffies_relative(HZ));
4262 } else
4263 schedule_reset(priv);
4264 }
4265
4266 mutex_unlock(&priv->action_mutex);
4267 return 1;
4268}
4269
4270static ssize_t rf_kill_store(struct device *d, struct device_attribute *attr,
4271 const char *buf, size_t count)
4272{
4273 struct ipw2100_priv *priv = dev_get_drvdata(d);
4274 ipw_radio_kill_sw(priv, buf[0] == '1');
4275 return count;
4276}
4277
4278static DEVICE_ATTR_RW(rf_kill);
4279
4280static struct attribute *ipw2100_sysfs_entries[] = {
4281 &dev_attr_hardware.attr,
4282 &dev_attr_registers.attr,
4283 &dev_attr_ordinals.attr,
4284 &dev_attr_pci.attr,
4285 &dev_attr_stats.attr,
4286 &dev_attr_internals.attr,
4287 &dev_attr_bssinfo.attr,
4288 &dev_attr_memory.attr,
4289 &dev_attr_scan_age.attr,
4290 &dev_attr_fatal_error.attr,
4291 &dev_attr_rf_kill.attr,
4292 &dev_attr_cfg.attr,
4293 &dev_attr_status.attr,
4294 &dev_attr_capability.attr,
4295 NULL,
4296};
4297
4298static const struct attribute_group ipw2100_attribute_group = {
4299 .attrs = ipw2100_sysfs_entries,
4300};
4301
4302static int status_queue_allocate(struct ipw2100_priv *priv, int entries)
4303{
4304 struct ipw2100_status_queue *q = &priv->status_queue;
4305
4306 IPW_DEBUG_INFO("enter\n");
4307
4308 q->size = entries * sizeof(struct ipw2100_status);
4309 q->drv = dma_alloc_coherent(&priv->pci_dev->dev, q->size, &q->nic,
4310 GFP_KERNEL);
4311 if (!q->drv) {
4312 IPW_DEBUG_WARNING("Can not allocate status queue.\n");
4313 return -ENOMEM;
4314 }
4315
4316 IPW_DEBUG_INFO("exit\n");
4317
4318 return 0;
4319}
4320
4321static void status_queue_free(struct ipw2100_priv *priv)
4322{
4323 IPW_DEBUG_INFO("enter\n");
4324
4325 if (priv->status_queue.drv) {
4326 dma_free_coherent(&priv->pci_dev->dev,
4327 priv->status_queue.size,
4328 priv->status_queue.drv,
4329 priv->status_queue.nic);
4330 priv->status_queue.drv = NULL;
4331 }
4332
4333 IPW_DEBUG_INFO("exit\n");
4334}
4335
4336static int bd_queue_allocate(struct ipw2100_priv *priv,
4337 struct ipw2100_bd_queue *q, int entries)
4338{
4339 IPW_DEBUG_INFO("enter\n");
4340
4341 memset(q, 0, sizeof(struct ipw2100_bd_queue));
4342
4343 q->entries = entries;
4344 q->size = entries * sizeof(struct ipw2100_bd);
4345 q->drv = dma_alloc_coherent(&priv->pci_dev->dev, q->size, &q->nic,
4346 GFP_KERNEL);
4347 if (!q->drv) {
4348 IPW_DEBUG_INFO
4349 ("can't allocate shared memory for buffer descriptors\n");
4350 return -ENOMEM;
4351 }
4352
4353 IPW_DEBUG_INFO("exit\n");
4354
4355 return 0;
4356}
4357
4358static void bd_queue_free(struct ipw2100_priv *priv, struct ipw2100_bd_queue *q)
4359{
4360 IPW_DEBUG_INFO("enter\n");
4361
4362 if (!q)
4363 return;
4364
4365 if (q->drv) {
4366 dma_free_coherent(&priv->pci_dev->dev, q->size, q->drv,
4367 q->nic);
4368 q->drv = NULL;
4369 }
4370
4371 IPW_DEBUG_INFO("exit\n");
4372}
4373
4374static void bd_queue_initialize(struct ipw2100_priv *priv,
4375 struct ipw2100_bd_queue *q, u32 base, u32 size,
4376 u32 r, u32 w)
4377{
4378 IPW_DEBUG_INFO("enter\n");
4379
4380 IPW_DEBUG_INFO("initializing bd queue at virt=%p, phys=%08x\n", q->drv,
4381 (u32) q->nic);
4382
4383 write_register(priv->net_dev, base, q->nic);
4384 write_register(priv->net_dev, size, q->entries);
4385 write_register(priv->net_dev, r, q->oldest);
4386 write_register(priv->net_dev, w, q->next);
4387
4388 IPW_DEBUG_INFO("exit\n");
4389}
4390
4391static void ipw2100_kill_works(struct ipw2100_priv *priv)
4392{
4393 priv->stop_rf_kill = 1;
4394 priv->stop_hang_check = 1;
4395 cancel_delayed_work_sync(&priv->reset_work);
4396 cancel_delayed_work_sync(&priv->security_work);
4397 cancel_delayed_work_sync(&priv->wx_event_work);
4398 cancel_delayed_work_sync(&priv->hang_check);
4399 cancel_delayed_work_sync(&priv->rf_kill);
4400 cancel_delayed_work_sync(&priv->scan_event);
4401}
4402
4403static int ipw2100_tx_allocate(struct ipw2100_priv *priv)
4404{
4405 int i, j, err;
4406 void *v;
4407 dma_addr_t p;
4408
4409 IPW_DEBUG_INFO("enter\n");
4410
4411 err = bd_queue_allocate(priv, &priv->tx_queue, TX_QUEUE_LENGTH);
4412 if (err) {
4413 IPW_DEBUG_ERROR("%s: failed bd_queue_allocate\n",
4414 priv->net_dev->name);
4415 return err;
4416 }
4417
4418 priv->tx_buffers = kmalloc_array(TX_PENDED_QUEUE_LENGTH,
4419 sizeof(struct ipw2100_tx_packet),
4420 GFP_KERNEL);
4421 if (!priv->tx_buffers) {
4422 bd_queue_free(priv, &priv->tx_queue);
4423 return -ENOMEM;
4424 }
4425
4426 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4427 v = dma_alloc_coherent(&priv->pci_dev->dev,
4428 sizeof(struct ipw2100_data_header), &p,
4429 GFP_KERNEL);
4430 if (!v) {
4431 printk(KERN_ERR DRV_NAME
4432 ": %s: PCI alloc failed for tx " "buffers.\n",
4433 priv->net_dev->name);
4434 err = -ENOMEM;
4435 break;
4436 }
4437
4438 priv->tx_buffers[i].type = DATA;
4439 priv->tx_buffers[i].info.d_struct.data =
4440 (struct ipw2100_data_header *)v;
4441 priv->tx_buffers[i].info.d_struct.data_phys = p;
4442 priv->tx_buffers[i].info.d_struct.txb = NULL;
4443 }
4444
4445 if (i == TX_PENDED_QUEUE_LENGTH)
4446 return 0;
4447
4448 for (j = 0; j < i; j++) {
4449 dma_free_coherent(&priv->pci_dev->dev,
4450 sizeof(struct ipw2100_data_header),
4451 priv->tx_buffers[j].info.d_struct.data,
4452 priv->tx_buffers[j].info.d_struct.data_phys);
4453 }
4454
4455 kfree(priv->tx_buffers);
4456 priv->tx_buffers = NULL;
4457
4458 return err;
4459}
4460
4461static void ipw2100_tx_initialize(struct ipw2100_priv *priv)
4462{
4463 int i;
4464
4465 IPW_DEBUG_INFO("enter\n");
4466
4467 /*
4468 * reinitialize packet info lists
4469 */
4470 INIT_LIST_HEAD(&priv->fw_pend_list);
4471 INIT_STAT(&priv->fw_pend_stat);
4472
4473 /*
4474 * reinitialize lists
4475 */
4476 INIT_LIST_HEAD(&priv->tx_pend_list);
4477 INIT_LIST_HEAD(&priv->tx_free_list);
4478 INIT_STAT(&priv->tx_pend_stat);
4479 INIT_STAT(&priv->tx_free_stat);
4480
4481 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4482 /* We simply drop any SKBs that have been queued for
4483 * transmit */
4484 if (priv->tx_buffers[i].info.d_struct.txb) {
4485 libipw_txb_free(priv->tx_buffers[i].info.d_struct.
4486 txb);
4487 priv->tx_buffers[i].info.d_struct.txb = NULL;
4488 }
4489
4490 list_add_tail(&priv->tx_buffers[i].list, &priv->tx_free_list);
4491 }
4492
4493 SET_STAT(&priv->tx_free_stat, i);
4494
4495 priv->tx_queue.oldest = 0;
4496 priv->tx_queue.available = priv->tx_queue.entries;
4497 priv->tx_queue.next = 0;
4498 INIT_STAT(&priv->txq_stat);
4499 SET_STAT(&priv->txq_stat, priv->tx_queue.available);
4500
4501 bd_queue_initialize(priv, &priv->tx_queue,
4502 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_BASE,
4503 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_SIZE,
4504 IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
4505 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX);
4506
4507 IPW_DEBUG_INFO("exit\n");
4508
4509}
4510
4511static void ipw2100_tx_free(struct ipw2100_priv *priv)
4512{
4513 int i;
4514
4515 IPW_DEBUG_INFO("enter\n");
4516
4517 bd_queue_free(priv, &priv->tx_queue);
4518
4519 if (!priv->tx_buffers)
4520 return;
4521
4522 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4523 if (priv->tx_buffers[i].info.d_struct.txb) {
4524 libipw_txb_free(priv->tx_buffers[i].info.d_struct.
4525 txb);
4526 priv->tx_buffers[i].info.d_struct.txb = NULL;
4527 }
4528 if (priv->tx_buffers[i].info.d_struct.data)
4529 dma_free_coherent(&priv->pci_dev->dev,
4530 sizeof(struct ipw2100_data_header),
4531 priv->tx_buffers[i].info.d_struct.data,
4532 priv->tx_buffers[i].info.d_struct.data_phys);
4533 }
4534
4535 kfree(priv->tx_buffers);
4536 priv->tx_buffers = NULL;
4537
4538 IPW_DEBUG_INFO("exit\n");
4539}
4540
4541static int ipw2100_rx_allocate(struct ipw2100_priv *priv)
4542{
4543 int i, j, err = -EINVAL;
4544
4545 IPW_DEBUG_INFO("enter\n");
4546
4547 err = bd_queue_allocate(priv, &priv->rx_queue, RX_QUEUE_LENGTH);
4548 if (err) {
4549 IPW_DEBUG_INFO("failed bd_queue_allocate\n");
4550 return err;
4551 }
4552
4553 err = status_queue_allocate(priv, RX_QUEUE_LENGTH);
4554 if (err) {
4555 IPW_DEBUG_INFO("failed status_queue_allocate\n");
4556 bd_queue_free(priv, &priv->rx_queue);
4557 return err;
4558 }
4559
4560 /*
4561 * allocate packets
4562 */
4563 priv->rx_buffers = kmalloc_array(RX_QUEUE_LENGTH,
4564 sizeof(struct ipw2100_rx_packet),
4565 GFP_KERNEL);
4566 if (!priv->rx_buffers) {
4567 IPW_DEBUG_INFO("can't allocate rx packet buffer table\n");
4568
4569 bd_queue_free(priv, &priv->rx_queue);
4570
4571 status_queue_free(priv);
4572
4573 return -ENOMEM;
4574 }
4575
4576 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4577 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
4578
4579 err = ipw2100_alloc_skb(priv, packet);
4580 if (unlikely(err)) {
4581 err = -ENOMEM;
4582 break;
4583 }
4584
4585 /* The BD holds the cache aligned address */
4586 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
4587 priv->rx_queue.drv[i].buf_length = IPW_RX_NIC_BUFFER_LENGTH;
4588 priv->status_queue.drv[i].status_fields = 0;
4589 }
4590
4591 if (i == RX_QUEUE_LENGTH)
4592 return 0;
4593
4594 for (j = 0; j < i; j++) {
4595 dma_unmap_single(&priv->pci_dev->dev,
4596 priv->rx_buffers[j].dma_addr,
4597 sizeof(struct ipw2100_rx_packet),
4598 DMA_FROM_DEVICE);
4599 dev_kfree_skb(priv->rx_buffers[j].skb);
4600 }
4601
4602 kfree(priv->rx_buffers);
4603 priv->rx_buffers = NULL;
4604
4605 bd_queue_free(priv, &priv->rx_queue);
4606
4607 status_queue_free(priv);
4608
4609 return err;
4610}
4611
4612static void ipw2100_rx_initialize(struct ipw2100_priv *priv)
4613{
4614 IPW_DEBUG_INFO("enter\n");
4615
4616 priv->rx_queue.oldest = 0;
4617 priv->rx_queue.available = priv->rx_queue.entries - 1;
4618 priv->rx_queue.next = priv->rx_queue.entries - 1;
4619
4620 INIT_STAT(&priv->rxq_stat);
4621 SET_STAT(&priv->rxq_stat, priv->rx_queue.available);
4622
4623 bd_queue_initialize(priv, &priv->rx_queue,
4624 IPW_MEM_HOST_SHARED_RX_BD_BASE,
4625 IPW_MEM_HOST_SHARED_RX_BD_SIZE,
4626 IPW_MEM_HOST_SHARED_RX_READ_INDEX,
4627 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX);
4628
4629 /* set up the status queue */
4630 write_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_STATUS_BASE,
4631 priv->status_queue.nic);
4632
4633 IPW_DEBUG_INFO("exit\n");
4634}
4635
4636static void ipw2100_rx_free(struct ipw2100_priv *priv)
4637{
4638 int i;
4639
4640 IPW_DEBUG_INFO("enter\n");
4641
4642 bd_queue_free(priv, &priv->rx_queue);
4643 status_queue_free(priv);
4644
4645 if (!priv->rx_buffers)
4646 return;
4647
4648 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4649 if (priv->rx_buffers[i].rxp) {
4650 dma_unmap_single(&priv->pci_dev->dev,
4651 priv->rx_buffers[i].dma_addr,
4652 sizeof(struct ipw2100_rx),
4653 DMA_FROM_DEVICE);
4654 dev_kfree_skb(priv->rx_buffers[i].skb);
4655 }
4656 }
4657
4658 kfree(priv->rx_buffers);
4659 priv->rx_buffers = NULL;
4660
4661 IPW_DEBUG_INFO("exit\n");
4662}
4663
4664static int ipw2100_read_mac_address(struct ipw2100_priv *priv)
4665{
4666 u32 length = ETH_ALEN;
4667 u8 addr[ETH_ALEN];
4668
4669 int err;
4670
4671 err = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ADAPTER_MAC, addr, &length);
4672 if (err) {
4673 IPW_DEBUG_INFO("MAC address read failed\n");
4674 return -EIO;
4675 }
4676
4677 eth_hw_addr_set(priv->net_dev, addr);
4678 IPW_DEBUG_INFO("card MAC is %pM\n", priv->net_dev->dev_addr);
4679
4680 return 0;
4681}
4682
4683/********************************************************************
4684 *
4685 * Firmware Commands
4686 *
4687 ********************************************************************/
4688
4689static int ipw2100_set_mac_address(struct ipw2100_priv *priv, int batch_mode)
4690{
4691 struct host_command cmd = {
4692 .host_command = ADAPTER_ADDRESS,
4693 .host_command_sequence = 0,
4694 .host_command_length = ETH_ALEN
4695 };
4696 int err;
4697
4698 IPW_DEBUG_HC("SET_MAC_ADDRESS\n");
4699
4700 IPW_DEBUG_INFO("enter\n");
4701
4702 if (priv->config & CFG_CUSTOM_MAC) {
4703 memcpy(cmd.host_command_parameters, priv->mac_addr, ETH_ALEN);
4704 eth_hw_addr_set(priv->net_dev, priv->mac_addr);
4705 } else
4706 memcpy(cmd.host_command_parameters, priv->net_dev->dev_addr,
4707 ETH_ALEN);
4708
4709 err = ipw2100_hw_send_command(priv, &cmd);
4710
4711 IPW_DEBUG_INFO("exit\n");
4712 return err;
4713}
4714
4715static int ipw2100_set_port_type(struct ipw2100_priv *priv, u32 port_type,
4716 int batch_mode)
4717{
4718 struct host_command cmd = {
4719 .host_command = PORT_TYPE,
4720 .host_command_sequence = 0,
4721 .host_command_length = sizeof(u32)
4722 };
4723 int err;
4724
4725 switch (port_type) {
4726 case IW_MODE_INFRA:
4727 cmd.host_command_parameters[0] = IPW_BSS;
4728 break;
4729 case IW_MODE_ADHOC:
4730 cmd.host_command_parameters[0] = IPW_IBSS;
4731 break;
4732 }
4733
4734 IPW_DEBUG_HC("PORT_TYPE: %s\n",
4735 port_type == IPW_IBSS ? "Ad-Hoc" : "Managed");
4736
4737 if (!batch_mode) {
4738 err = ipw2100_disable_adapter(priv);
4739 if (err) {
4740 printk(KERN_ERR DRV_NAME
4741 ": %s: Could not disable adapter %d\n",
4742 priv->net_dev->name, err);
4743 return err;
4744 }
4745 }
4746
4747 /* send cmd to firmware */
4748 err = ipw2100_hw_send_command(priv, &cmd);
4749
4750 if (!batch_mode)
4751 ipw2100_enable_adapter(priv);
4752
4753 return err;
4754}
4755
4756static int ipw2100_set_channel(struct ipw2100_priv *priv, u32 channel,
4757 int batch_mode)
4758{
4759 struct host_command cmd = {
4760 .host_command = CHANNEL,
4761 .host_command_sequence = 0,
4762 .host_command_length = sizeof(u32)
4763 };
4764 int err;
4765
4766 cmd.host_command_parameters[0] = channel;
4767
4768 IPW_DEBUG_HC("CHANNEL: %d\n", channel);
4769
4770 /* If BSS then we don't support channel selection */
4771 if (priv->ieee->iw_mode == IW_MODE_INFRA)
4772 return 0;
4773
4774 if ((channel != 0) &&
4775 ((channel < REG_MIN_CHANNEL) || (channel > REG_MAX_CHANNEL)))
4776 return -EINVAL;
4777
4778 if (!batch_mode) {
4779 err = ipw2100_disable_adapter(priv);
4780 if (err)
4781 return err;
4782 }
4783
4784 err = ipw2100_hw_send_command(priv, &cmd);
4785 if (err) {
4786 IPW_DEBUG_INFO("Failed to set channel to %d", channel);
4787 return err;
4788 }
4789
4790 if (channel)
4791 priv->config |= CFG_STATIC_CHANNEL;
4792 else
4793 priv->config &= ~CFG_STATIC_CHANNEL;
4794
4795 priv->channel = channel;
4796
4797 if (!batch_mode) {
4798 err = ipw2100_enable_adapter(priv);
4799 if (err)
4800 return err;
4801 }
4802
4803 return 0;
4804}
4805
4806static int ipw2100_system_config(struct ipw2100_priv *priv, int batch_mode)
4807{
4808 struct host_command cmd = {
4809 .host_command = SYSTEM_CONFIG,
4810 .host_command_sequence = 0,
4811 .host_command_length = 12,
4812 };
4813 u32 ibss_mask, len = sizeof(u32);
4814 int err;
4815
4816 /* Set system configuration */
4817
4818 if (!batch_mode) {
4819 err = ipw2100_disable_adapter(priv);
4820 if (err)
4821 return err;
4822 }
4823
4824 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
4825 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_AUTO_START;
4826
4827 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_MASK |
4828 IPW_CFG_BSS_MASK | IPW_CFG_802_1x_ENABLE;
4829
4830 if (!(priv->config & CFG_LONG_PREAMBLE))
4831 cmd.host_command_parameters[0] |= IPW_CFG_PREAMBLE_AUTO;
4832
4833 err = ipw2100_get_ordinal(priv,
4834 IPW_ORD_EEPROM_IBSS_11B_CHANNELS,
4835 &ibss_mask, &len);
4836 if (err)
4837 ibss_mask = IPW_IBSS_11B_DEFAULT_MASK;
4838
4839 cmd.host_command_parameters[1] = REG_CHANNEL_MASK;
4840 cmd.host_command_parameters[2] = REG_CHANNEL_MASK & ibss_mask;
4841
4842 /* 11b only */
4843 /*cmd.host_command_parameters[0] |= DIVERSITY_ANTENNA_A; */
4844
4845 err = ipw2100_hw_send_command(priv, &cmd);
4846 if (err)
4847 return err;
4848
4849/* If IPv6 is configured in the kernel then we don't want to filter out all
4850 * of the multicast packets as IPv6 needs some. */
4851#if !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
4852 cmd.host_command = ADD_MULTICAST;
4853 cmd.host_command_sequence = 0;
4854 cmd.host_command_length = 0;
4855
4856 ipw2100_hw_send_command(priv, &cmd);
4857#endif
4858 if (!batch_mode) {
4859 err = ipw2100_enable_adapter(priv);
4860 if (err)
4861 return err;
4862 }
4863
4864 return 0;
4865}
4866
4867static int ipw2100_set_tx_rates(struct ipw2100_priv *priv, u32 rate,
4868 int batch_mode)
4869{
4870 struct host_command cmd = {
4871 .host_command = BASIC_TX_RATES,
4872 .host_command_sequence = 0,
4873 .host_command_length = 4
4874 };
4875 int err;
4876
4877 cmd.host_command_parameters[0] = rate & TX_RATE_MASK;
4878
4879 if (!batch_mode) {
4880 err = ipw2100_disable_adapter(priv);
4881 if (err)
4882 return err;
4883 }
4884
4885 /* Set BASIC TX Rate first */
4886 ipw2100_hw_send_command(priv, &cmd);
4887
4888 /* Set TX Rate */
4889 cmd.host_command = TX_RATES;
4890 ipw2100_hw_send_command(priv, &cmd);
4891
4892 /* Set MSDU TX Rate */
4893 cmd.host_command = MSDU_TX_RATES;
4894 ipw2100_hw_send_command(priv, &cmd);
4895
4896 if (!batch_mode) {
4897 err = ipw2100_enable_adapter(priv);
4898 if (err)
4899 return err;
4900 }
4901
4902 priv->tx_rates = rate;
4903
4904 return 0;
4905}
4906
4907static int ipw2100_set_power_mode(struct ipw2100_priv *priv, int power_level)
4908{
4909 struct host_command cmd = {
4910 .host_command = POWER_MODE,
4911 .host_command_sequence = 0,
4912 .host_command_length = 4
4913 };
4914 int err;
4915
4916 cmd.host_command_parameters[0] = power_level;
4917
4918 err = ipw2100_hw_send_command(priv, &cmd);
4919 if (err)
4920 return err;
4921
4922 if (power_level == IPW_POWER_MODE_CAM)
4923 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
4924 else
4925 priv->power_mode = IPW_POWER_ENABLED | power_level;
4926
4927#ifdef IPW2100_TX_POWER
4928 if (priv->port_type == IBSS && priv->adhoc_power != DFTL_IBSS_TX_POWER) {
4929 /* Set beacon interval */
4930 cmd.host_command = TX_POWER_INDEX;
4931 cmd.host_command_parameters[0] = (u32) priv->adhoc_power;
4932
4933 err = ipw2100_hw_send_command(priv, &cmd);
4934 if (err)
4935 return err;
4936 }
4937#endif
4938
4939 return 0;
4940}
4941
4942static int ipw2100_set_rts_threshold(struct ipw2100_priv *priv, u32 threshold)
4943{
4944 struct host_command cmd = {
4945 .host_command = RTS_THRESHOLD,
4946 .host_command_sequence = 0,
4947 .host_command_length = 4
4948 };
4949 int err;
4950
4951 if (threshold & RTS_DISABLED)
4952 cmd.host_command_parameters[0] = MAX_RTS_THRESHOLD;
4953 else
4954 cmd.host_command_parameters[0] = threshold & ~RTS_DISABLED;
4955
4956 err = ipw2100_hw_send_command(priv, &cmd);
4957 if (err)
4958 return err;
4959
4960 priv->rts_threshold = threshold;
4961
4962 return 0;
4963}
4964
4965#if 0
4966int ipw2100_set_fragmentation_threshold(struct ipw2100_priv *priv,
4967 u32 threshold, int batch_mode)
4968{
4969 struct host_command cmd = {
4970 .host_command = FRAG_THRESHOLD,
4971 .host_command_sequence = 0,
4972 .host_command_length = 4,
4973 .host_command_parameters[0] = 0,
4974 };
4975 int err;
4976
4977 if (!batch_mode) {
4978 err = ipw2100_disable_adapter(priv);
4979 if (err)
4980 return err;
4981 }
4982
4983 if (threshold == 0)
4984 threshold = DEFAULT_FRAG_THRESHOLD;
4985 else {
4986 threshold = max(threshold, MIN_FRAG_THRESHOLD);
4987 threshold = min(threshold, MAX_FRAG_THRESHOLD);
4988 }
4989
4990 cmd.host_command_parameters[0] = threshold;
4991
4992 IPW_DEBUG_HC("FRAG_THRESHOLD: %u\n", threshold);
4993
4994 err = ipw2100_hw_send_command(priv, &cmd);
4995
4996 if (!batch_mode)
4997 ipw2100_enable_adapter(priv);
4998
4999 if (!err)
5000 priv->frag_threshold = threshold;
5001
5002 return err;
5003}
5004#endif
5005
5006static int ipw2100_set_short_retry(struct ipw2100_priv *priv, u32 retry)
5007{
5008 struct host_command cmd = {
5009 .host_command = SHORT_RETRY_LIMIT,
5010 .host_command_sequence = 0,
5011 .host_command_length = 4
5012 };
5013 int err;
5014
5015 cmd.host_command_parameters[0] = retry;
5016
5017 err = ipw2100_hw_send_command(priv, &cmd);
5018 if (err)
5019 return err;
5020
5021 priv->short_retry_limit = retry;
5022
5023 return 0;
5024}
5025
5026static int ipw2100_set_long_retry(struct ipw2100_priv *priv, u32 retry)
5027{
5028 struct host_command cmd = {
5029 .host_command = LONG_RETRY_LIMIT,
5030 .host_command_sequence = 0,
5031 .host_command_length = 4
5032 };
5033 int err;
5034
5035 cmd.host_command_parameters[0] = retry;
5036
5037 err = ipw2100_hw_send_command(priv, &cmd);
5038 if (err)
5039 return err;
5040
5041 priv->long_retry_limit = retry;
5042
5043 return 0;
5044}
5045
5046static int ipw2100_set_mandatory_bssid(struct ipw2100_priv *priv, u8 * bssid,
5047 int batch_mode)
5048{
5049 struct host_command cmd = {
5050 .host_command = MANDATORY_BSSID,
5051 .host_command_sequence = 0,
5052 .host_command_length = (bssid == NULL) ? 0 : ETH_ALEN
5053 };
5054 int err;
5055
5056#ifdef CONFIG_IPW2100_DEBUG
5057 if (bssid != NULL)
5058 IPW_DEBUG_HC("MANDATORY_BSSID: %pM\n", bssid);
5059 else
5060 IPW_DEBUG_HC("MANDATORY_BSSID: <clear>\n");
5061#endif
5062 /* if BSSID is empty then we disable mandatory bssid mode */
5063 if (bssid != NULL)
5064 memcpy(cmd.host_command_parameters, bssid, ETH_ALEN);
5065
5066 if (!batch_mode) {
5067 err = ipw2100_disable_adapter(priv);
5068 if (err)
5069 return err;
5070 }
5071
5072 err = ipw2100_hw_send_command(priv, &cmd);
5073
5074 if (!batch_mode)
5075 ipw2100_enable_adapter(priv);
5076
5077 return err;
5078}
5079
5080static int ipw2100_disassociate_bssid(struct ipw2100_priv *priv)
5081{
5082 struct host_command cmd = {
5083 .host_command = DISASSOCIATION_BSSID,
5084 .host_command_sequence = 0,
5085 .host_command_length = ETH_ALEN
5086 };
5087 int err;
5088
5089 IPW_DEBUG_HC("DISASSOCIATION_BSSID\n");
5090
5091 /* The Firmware currently ignores the BSSID and just disassociates from
5092 * the currently associated AP -- but in the off chance that a future
5093 * firmware does use the BSSID provided here, we go ahead and try and
5094 * set it to the currently associated AP's BSSID */
5095 memcpy(cmd.host_command_parameters, priv->bssid, ETH_ALEN);
5096
5097 err = ipw2100_hw_send_command(priv, &cmd);
5098
5099 return err;
5100}
5101
5102static int ipw2100_set_wpa_ie(struct ipw2100_priv *,
5103 struct ipw2100_wpa_assoc_frame *, int)
5104 __attribute__ ((unused));
5105
5106static int ipw2100_set_wpa_ie(struct ipw2100_priv *priv,
5107 struct ipw2100_wpa_assoc_frame *wpa_frame,
5108 int batch_mode)
5109{
5110 struct host_command cmd = {
5111 .host_command = SET_WPA_IE,
5112 .host_command_sequence = 0,
5113 .host_command_length = sizeof(struct ipw2100_wpa_assoc_frame),
5114 };
5115 int err;
5116
5117 IPW_DEBUG_HC("SET_WPA_IE\n");
5118
5119 if (!batch_mode) {
5120 err = ipw2100_disable_adapter(priv);
5121 if (err)
5122 return err;
5123 }
5124
5125 memcpy(cmd.host_command_parameters, wpa_frame,
5126 sizeof(struct ipw2100_wpa_assoc_frame));
5127
5128 err = ipw2100_hw_send_command(priv, &cmd);
5129
5130 if (!batch_mode) {
5131 if (ipw2100_enable_adapter(priv))
5132 err = -EIO;
5133 }
5134
5135 return err;
5136}
5137
5138struct security_info_params {
5139 u32 allowed_ciphers;
5140 u16 version;
5141 u8 auth_mode;
5142 u8 replay_counters_number;
5143 u8 unicast_using_group;
5144} __packed;
5145
5146static int ipw2100_set_security_information(struct ipw2100_priv *priv,
5147 int auth_mode,
5148 int security_level,
5149 int unicast_using_group,
5150 int batch_mode)
5151{
5152 struct host_command cmd = {
5153 .host_command = SET_SECURITY_INFORMATION,
5154 .host_command_sequence = 0,
5155 .host_command_length = sizeof(struct security_info_params)
5156 };
5157 struct security_info_params *security =
5158 (struct security_info_params *)&cmd.host_command_parameters;
5159 int err;
5160 memset(security, 0, sizeof(*security));
5161
5162 /* If shared key AP authentication is turned on, then we need to
5163 * configure the firmware to try and use it.
5164 *
5165 * Actual data encryption/decryption is handled by the host. */
5166 security->auth_mode = auth_mode;
5167 security->unicast_using_group = unicast_using_group;
5168
5169 switch (security_level) {
5170 default:
5171 case SEC_LEVEL_0:
5172 security->allowed_ciphers = IPW_NONE_CIPHER;
5173 break;
5174 case SEC_LEVEL_1:
5175 security->allowed_ciphers = IPW_WEP40_CIPHER |
5176 IPW_WEP104_CIPHER;
5177 break;
5178 case SEC_LEVEL_2:
5179 security->allowed_ciphers = IPW_WEP40_CIPHER |
5180 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER;
5181 break;
5182 case SEC_LEVEL_2_CKIP:
5183 security->allowed_ciphers = IPW_WEP40_CIPHER |
5184 IPW_WEP104_CIPHER | IPW_CKIP_CIPHER;
5185 break;
5186 case SEC_LEVEL_3:
5187 security->allowed_ciphers = IPW_WEP40_CIPHER |
5188 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER | IPW_CCMP_CIPHER;
5189 break;
5190 }
5191
5192 IPW_DEBUG_HC
5193 ("SET_SECURITY_INFORMATION: auth:%d cipher:0x%02X (level %d)\n",
5194 security->auth_mode, security->allowed_ciphers, security_level);
5195
5196 security->replay_counters_number = 0;
5197
5198 if (!batch_mode) {
5199 err = ipw2100_disable_adapter(priv);
5200 if (err)
5201 return err;
5202 }
5203
5204 err = ipw2100_hw_send_command(priv, &cmd);
5205
5206 if (!batch_mode)
5207 ipw2100_enable_adapter(priv);
5208
5209 return err;
5210}
5211
5212static int ipw2100_set_tx_power(struct ipw2100_priv *priv, u32 tx_power)
5213{
5214 struct host_command cmd = {
5215 .host_command = TX_POWER_INDEX,
5216 .host_command_sequence = 0,
5217 .host_command_length = 4
5218 };
5219 int err = 0;
5220 u32 tmp = tx_power;
5221
5222 if (tx_power != IPW_TX_POWER_DEFAULT)
5223 tmp = (tx_power - IPW_TX_POWER_MIN_DBM) * 16 /
5224 (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM);
5225
5226 cmd.host_command_parameters[0] = tmp;
5227
5228 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
5229 err = ipw2100_hw_send_command(priv, &cmd);
5230 if (!err)
5231 priv->tx_power = tx_power;
5232
5233 return 0;
5234}
5235
5236static int ipw2100_set_ibss_beacon_interval(struct ipw2100_priv *priv,
5237 u32 interval, int batch_mode)
5238{
5239 struct host_command cmd = {
5240 .host_command = BEACON_INTERVAL,
5241 .host_command_sequence = 0,
5242 .host_command_length = 4
5243 };
5244 int err;
5245
5246 cmd.host_command_parameters[0] = interval;
5247
5248 IPW_DEBUG_INFO("enter\n");
5249
5250 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5251 if (!batch_mode) {
5252 err = ipw2100_disable_adapter(priv);
5253 if (err)
5254 return err;
5255 }
5256
5257 ipw2100_hw_send_command(priv, &cmd);
5258
5259 if (!batch_mode) {
5260 err = ipw2100_enable_adapter(priv);
5261 if (err)
5262 return err;
5263 }
5264 }
5265
5266 IPW_DEBUG_INFO("exit\n");
5267
5268 return 0;
5269}
5270
5271static void ipw2100_queues_initialize(struct ipw2100_priv *priv)
5272{
5273 ipw2100_tx_initialize(priv);
5274 ipw2100_rx_initialize(priv);
5275 ipw2100_msg_initialize(priv);
5276}
5277
5278static void ipw2100_queues_free(struct ipw2100_priv *priv)
5279{
5280 ipw2100_tx_free(priv);
5281 ipw2100_rx_free(priv);
5282 ipw2100_msg_free(priv);
5283}
5284
5285static int ipw2100_queues_allocate(struct ipw2100_priv *priv)
5286{
5287 if (ipw2100_tx_allocate(priv) ||
5288 ipw2100_rx_allocate(priv) || ipw2100_msg_allocate(priv))
5289 goto fail;
5290
5291 return 0;
5292
5293 fail:
5294 ipw2100_tx_free(priv);
5295 ipw2100_rx_free(priv);
5296 ipw2100_msg_free(priv);
5297 return -ENOMEM;
5298}
5299
5300#define IPW_PRIVACY_CAPABLE 0x0008
5301
5302static int ipw2100_set_wep_flags(struct ipw2100_priv *priv, u32 flags,
5303 int batch_mode)
5304{
5305 struct host_command cmd = {
5306 .host_command = WEP_FLAGS,
5307 .host_command_sequence = 0,
5308 .host_command_length = 4
5309 };
5310 int err;
5311
5312 cmd.host_command_parameters[0] = flags;
5313
5314 IPW_DEBUG_HC("WEP_FLAGS: flags = 0x%08X\n", flags);
5315
5316 if (!batch_mode) {
5317 err = ipw2100_disable_adapter(priv);
5318 if (err) {
5319 printk(KERN_ERR DRV_NAME
5320 ": %s: Could not disable adapter %d\n",
5321 priv->net_dev->name, err);
5322 return err;
5323 }
5324 }
5325
5326 /* send cmd to firmware */
5327 err = ipw2100_hw_send_command(priv, &cmd);
5328
5329 if (!batch_mode)
5330 ipw2100_enable_adapter(priv);
5331
5332 return err;
5333}
5334
5335struct ipw2100_wep_key {
5336 u8 idx;
5337 u8 len;
5338 u8 key[13];
5339};
5340
5341/* Macros to ease up priting WEP keys */
5342#define WEP_FMT_64 "%02X%02X%02X%02X-%02X"
5343#define WEP_FMT_128 "%02X%02X%02X%02X-%02X%02X%02X%02X-%02X%02X%02X"
5344#define WEP_STR_64(x) x[0],x[1],x[2],x[3],x[4]
5345#define WEP_STR_128(x) x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7],x[8],x[9],x[10]
5346
5347/**
5348 * ipw2100_set_key() - Set a the wep key
5349 *
5350 * @priv: struct to work on
5351 * @idx: index of the key we want to set
5352 * @key: ptr to the key data to set
5353 * @len: length of the buffer at @key
5354 * @batch_mode: FIXME perform the operation in batch mode, not
5355 * disabling the device.
5356 *
5357 * @returns 0 if OK, < 0 errno code on error.
5358 *
5359 * Fill out a command structure with the new wep key, length an
5360 * index and send it down the wire.
5361 */
5362static int ipw2100_set_key(struct ipw2100_priv *priv,
5363 int idx, char *key, int len, int batch_mode)
5364{
5365 int keylen = len ? (len <= 5 ? 5 : 13) : 0;
5366 struct host_command cmd = {
5367 .host_command = WEP_KEY_INFO,
5368 .host_command_sequence = 0,
5369 .host_command_length = sizeof(struct ipw2100_wep_key),
5370 };
5371 struct ipw2100_wep_key *wep_key = (void *)cmd.host_command_parameters;
5372 int err;
5373
5374 IPW_DEBUG_HC("WEP_KEY_INFO: index = %d, len = %d/%d\n",
5375 idx, keylen, len);
5376
5377 /* NOTE: We don't check cached values in case the firmware was reset
5378 * or some other problem is occurring. If the user is setting the key,
5379 * then we push the change */
5380
5381 wep_key->idx = idx;
5382 wep_key->len = keylen;
5383
5384 if (keylen) {
5385 memcpy(wep_key->key, key, len);
5386 memset(wep_key->key + len, 0, keylen - len);
5387 }
5388
5389 /* Will be optimized out on debug not being configured in */
5390 if (keylen == 0)
5391 IPW_DEBUG_WEP("%s: Clearing key %d\n",
5392 priv->net_dev->name, wep_key->idx);
5393 else if (keylen == 5)
5394 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_64 "\n",
5395 priv->net_dev->name, wep_key->idx, wep_key->len,
5396 WEP_STR_64(wep_key->key));
5397 else
5398 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_128
5399 "\n",
5400 priv->net_dev->name, wep_key->idx, wep_key->len,
5401 WEP_STR_128(wep_key->key));
5402
5403 if (!batch_mode) {
5404 err = ipw2100_disable_adapter(priv);
5405 /* FIXME: IPG: shouldn't this prink be in _disable_adapter()? */
5406 if (err) {
5407 printk(KERN_ERR DRV_NAME
5408 ": %s: Could not disable adapter %d\n",
5409 priv->net_dev->name, err);
5410 return err;
5411 }
5412 }
5413
5414 /* send cmd to firmware */
5415 err = ipw2100_hw_send_command(priv, &cmd);
5416
5417 if (!batch_mode) {
5418 int err2 = ipw2100_enable_adapter(priv);
5419 if (err == 0)
5420 err = err2;
5421 }
5422 return err;
5423}
5424
5425static int ipw2100_set_key_index(struct ipw2100_priv *priv,
5426 int idx, int batch_mode)
5427{
5428 struct host_command cmd = {
5429 .host_command = WEP_KEY_INDEX,
5430 .host_command_sequence = 0,
5431 .host_command_length = 4,
5432 .host_command_parameters = {idx},
5433 };
5434 int err;
5435
5436 IPW_DEBUG_HC("WEP_KEY_INDEX: index = %d\n", idx);
5437
5438 if (idx < 0 || idx > 3)
5439 return -EINVAL;
5440
5441 if (!batch_mode) {
5442 err = ipw2100_disable_adapter(priv);
5443 if (err) {
5444 printk(KERN_ERR DRV_NAME
5445 ": %s: Could not disable adapter %d\n",
5446 priv->net_dev->name, err);
5447 return err;
5448 }
5449 }
5450
5451 /* send cmd to firmware */
5452 err = ipw2100_hw_send_command(priv, &cmd);
5453
5454 if (!batch_mode)
5455 ipw2100_enable_adapter(priv);
5456
5457 return err;
5458}
5459
5460static int ipw2100_configure_security(struct ipw2100_priv *priv, int batch_mode)
5461{
5462 int i, err, auth_mode, sec_level, use_group;
5463
5464 if (!(priv->status & STATUS_RUNNING))
5465 return 0;
5466
5467 if (!batch_mode) {
5468 err = ipw2100_disable_adapter(priv);
5469 if (err)
5470 return err;
5471 }
5472
5473 if (!priv->ieee->sec.enabled) {
5474 err =
5475 ipw2100_set_security_information(priv, IPW_AUTH_OPEN,
5476 SEC_LEVEL_0, 0, 1);
5477 } else {
5478 auth_mode = IPW_AUTH_OPEN;
5479 if (priv->ieee->sec.flags & SEC_AUTH_MODE) {
5480 if (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY)
5481 auth_mode = IPW_AUTH_SHARED;
5482 else if (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP)
5483 auth_mode = IPW_AUTH_LEAP_CISCO_ID;
5484 }
5485
5486 sec_level = SEC_LEVEL_0;
5487 if (priv->ieee->sec.flags & SEC_LEVEL)
5488 sec_level = priv->ieee->sec.level;
5489
5490 use_group = 0;
5491 if (priv->ieee->sec.flags & SEC_UNICAST_GROUP)
5492 use_group = priv->ieee->sec.unicast_uses_group;
5493
5494 err =
5495 ipw2100_set_security_information(priv, auth_mode, sec_level,
5496 use_group, 1);
5497 }
5498
5499 if (err)
5500 goto exit;
5501
5502 if (priv->ieee->sec.enabled) {
5503 for (i = 0; i < 4; i++) {
5504 if (!(priv->ieee->sec.flags & (1 << i))) {
5505 memset(priv->ieee->sec.keys[i], 0, WEP_KEY_LEN);
5506 priv->ieee->sec.key_sizes[i] = 0;
5507 } else {
5508 err = ipw2100_set_key(priv, i,
5509 priv->ieee->sec.keys[i],
5510 priv->ieee->sec.
5511 key_sizes[i], 1);
5512 if (err)
5513 goto exit;
5514 }
5515 }
5516
5517 ipw2100_set_key_index(priv, priv->ieee->crypt_info.tx_keyidx, 1);
5518 }
5519
5520 /* Always enable privacy so the Host can filter WEP packets if
5521 * encrypted data is sent up */
5522 err =
5523 ipw2100_set_wep_flags(priv,
5524 priv->ieee->sec.
5525 enabled ? IPW_PRIVACY_CAPABLE : 0, 1);
5526 if (err)
5527 goto exit;
5528
5529 priv->status &= ~STATUS_SECURITY_UPDATED;
5530
5531 exit:
5532 if (!batch_mode)
5533 ipw2100_enable_adapter(priv);
5534
5535 return err;
5536}
5537
5538static void ipw2100_security_work(struct work_struct *work)
5539{
5540 struct ipw2100_priv *priv =
5541 container_of(work, struct ipw2100_priv, security_work.work);
5542
5543 /* If we happen to have reconnected before we get a chance to
5544 * process this, then update the security settings--which causes
5545 * a disassociation to occur */
5546 if (!(priv->status & STATUS_ASSOCIATED) &&
5547 priv->status & STATUS_SECURITY_UPDATED)
5548 ipw2100_configure_security(priv, 0);
5549}
5550
5551static void shim__set_security(struct net_device *dev,
5552 struct libipw_security *sec)
5553{
5554 struct ipw2100_priv *priv = libipw_priv(dev);
5555 int i;
5556
5557 mutex_lock(&priv->action_mutex);
5558 if (!(priv->status & STATUS_INITIALIZED))
5559 goto done;
5560
5561 for (i = 0; i < 4; i++) {
5562 if (sec->flags & (1 << i)) {
5563 priv->ieee->sec.key_sizes[i] = sec->key_sizes[i];
5564 if (sec->key_sizes[i] == 0)
5565 priv->ieee->sec.flags &= ~(1 << i);
5566 else
5567 memcpy(priv->ieee->sec.keys[i], sec->keys[i],
5568 sec->key_sizes[i]);
5569 if (sec->level == SEC_LEVEL_1) {
5570 priv->ieee->sec.flags |= (1 << i);
5571 priv->status |= STATUS_SECURITY_UPDATED;
5572 } else
5573 priv->ieee->sec.flags &= ~(1 << i);
5574 }
5575 }
5576
5577 if ((sec->flags & SEC_ACTIVE_KEY) &&
5578 priv->ieee->sec.active_key != sec->active_key) {
5579 priv->ieee->sec.active_key = sec->active_key;
5580 priv->ieee->sec.flags |= SEC_ACTIVE_KEY;
5581 priv->status |= STATUS_SECURITY_UPDATED;
5582 }
5583
5584 if ((sec->flags & SEC_AUTH_MODE) &&
5585 (priv->ieee->sec.auth_mode != sec->auth_mode)) {
5586 priv->ieee->sec.auth_mode = sec->auth_mode;
5587 priv->ieee->sec.flags |= SEC_AUTH_MODE;
5588 priv->status |= STATUS_SECURITY_UPDATED;
5589 }
5590
5591 if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) {
5592 priv->ieee->sec.flags |= SEC_ENABLED;
5593 priv->ieee->sec.enabled = sec->enabled;
5594 priv->status |= STATUS_SECURITY_UPDATED;
5595 }
5596
5597 if (sec->flags & SEC_ENCRYPT)
5598 priv->ieee->sec.encrypt = sec->encrypt;
5599
5600 if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) {
5601 priv->ieee->sec.level = sec->level;
5602 priv->ieee->sec.flags |= SEC_LEVEL;
5603 priv->status |= STATUS_SECURITY_UPDATED;
5604 }
5605
5606 IPW_DEBUG_WEP("Security flags: %c %c%c%c%c %c%c%c%c\n",
5607 priv->ieee->sec.flags & (1 << 8) ? '1' : '0',
5608 priv->ieee->sec.flags & (1 << 7) ? '1' : '0',
5609 priv->ieee->sec.flags & (1 << 6) ? '1' : '0',
5610 priv->ieee->sec.flags & (1 << 5) ? '1' : '0',
5611 priv->ieee->sec.flags & (1 << 4) ? '1' : '0',
5612 priv->ieee->sec.flags & (1 << 3) ? '1' : '0',
5613 priv->ieee->sec.flags & (1 << 2) ? '1' : '0',
5614 priv->ieee->sec.flags & (1 << 1) ? '1' : '0',
5615 priv->ieee->sec.flags & (1 << 0) ? '1' : '0');
5616
5617/* As a temporary work around to enable WPA until we figure out why
5618 * wpa_supplicant toggles the security capability of the driver, which
5619 * forces a disassociation with force_update...
5620 *
5621 * if (force_update || !(priv->status & STATUS_ASSOCIATED))*/
5622 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
5623 ipw2100_configure_security(priv, 0);
5624 done:
5625 mutex_unlock(&priv->action_mutex);
5626}
5627
5628static int ipw2100_adapter_setup(struct ipw2100_priv *priv)
5629{
5630 int err;
5631 int batch_mode = 1;
5632 u8 *bssid;
5633
5634 IPW_DEBUG_INFO("enter\n");
5635
5636 err = ipw2100_disable_adapter(priv);
5637 if (err)
5638 return err;
5639#ifdef CONFIG_IPW2100_MONITOR
5640 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
5641 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5642 if (err)
5643 return err;
5644
5645 IPW_DEBUG_INFO("exit\n");
5646
5647 return 0;
5648 }
5649#endif /* CONFIG_IPW2100_MONITOR */
5650
5651 err = ipw2100_read_mac_address(priv);
5652 if (err)
5653 return -EIO;
5654
5655 err = ipw2100_set_mac_address(priv, batch_mode);
5656 if (err)
5657 return err;
5658
5659 err = ipw2100_set_port_type(priv, priv->ieee->iw_mode, batch_mode);
5660 if (err)
5661 return err;
5662
5663 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5664 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5665 if (err)
5666 return err;
5667 }
5668
5669 err = ipw2100_system_config(priv, batch_mode);
5670 if (err)
5671 return err;
5672
5673 err = ipw2100_set_tx_rates(priv, priv->tx_rates, batch_mode);
5674 if (err)
5675 return err;
5676
5677 /* Default to power mode OFF */
5678 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
5679 if (err)
5680 return err;
5681
5682 err = ipw2100_set_rts_threshold(priv, priv->rts_threshold);
5683 if (err)
5684 return err;
5685
5686 if (priv->config & CFG_STATIC_BSSID)
5687 bssid = priv->bssid;
5688 else
5689 bssid = NULL;
5690 err = ipw2100_set_mandatory_bssid(priv, bssid, batch_mode);
5691 if (err)
5692 return err;
5693
5694 if (priv->config & CFG_STATIC_ESSID)
5695 err = ipw2100_set_essid(priv, priv->essid, priv->essid_len,
5696 batch_mode);
5697 else
5698 err = ipw2100_set_essid(priv, NULL, 0, batch_mode);
5699 if (err)
5700 return err;
5701
5702 err = ipw2100_configure_security(priv, batch_mode);
5703 if (err)
5704 return err;
5705
5706 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5707 err =
5708 ipw2100_set_ibss_beacon_interval(priv,
5709 priv->beacon_interval,
5710 batch_mode);
5711 if (err)
5712 return err;
5713
5714 err = ipw2100_set_tx_power(priv, priv->tx_power);
5715 if (err)
5716 return err;
5717 }
5718
5719 /*
5720 err = ipw2100_set_fragmentation_threshold(
5721 priv, priv->frag_threshold, batch_mode);
5722 if (err)
5723 return err;
5724 */
5725
5726 IPW_DEBUG_INFO("exit\n");
5727
5728 return 0;
5729}
5730
5731/*************************************************************************
5732 *
5733 * EXTERNALLY CALLED METHODS
5734 *
5735 *************************************************************************/
5736
5737/* This method is called by the network layer -- not to be confused with
5738 * ipw2100_set_mac_address() declared above called by this driver (and this
5739 * method as well) to talk to the firmware */
5740static int ipw2100_set_address(struct net_device *dev, void *p)
5741{
5742 struct ipw2100_priv *priv = libipw_priv(dev);
5743 struct sockaddr *addr = p;
5744 int err = 0;
5745
5746 if (!is_valid_ether_addr(addr->sa_data))
5747 return -EADDRNOTAVAIL;
5748
5749 mutex_lock(&priv->action_mutex);
5750
5751 priv->config |= CFG_CUSTOM_MAC;
5752 memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
5753
5754 err = ipw2100_set_mac_address(priv, 0);
5755 if (err)
5756 goto done;
5757
5758 priv->reset_backoff = 0;
5759 mutex_unlock(&priv->action_mutex);
5760 ipw2100_reset_adapter(&priv->reset_work.work);
5761 return 0;
5762
5763 done:
5764 mutex_unlock(&priv->action_mutex);
5765 return err;
5766}
5767
5768static int ipw2100_open(struct net_device *dev)
5769{
5770 struct ipw2100_priv *priv = libipw_priv(dev);
5771 unsigned long flags;
5772 IPW_DEBUG_INFO("dev->open\n");
5773
5774 spin_lock_irqsave(&priv->low_lock, flags);
5775 if (priv->status & STATUS_ASSOCIATED) {
5776 netif_carrier_on(dev);
5777 netif_start_queue(dev);
5778 }
5779 spin_unlock_irqrestore(&priv->low_lock, flags);
5780
5781 return 0;
5782}
5783
5784static int ipw2100_close(struct net_device *dev)
5785{
5786 struct ipw2100_priv *priv = libipw_priv(dev);
5787 unsigned long flags;
5788 struct list_head *element;
5789 struct ipw2100_tx_packet *packet;
5790
5791 IPW_DEBUG_INFO("enter\n");
5792
5793 spin_lock_irqsave(&priv->low_lock, flags);
5794
5795 if (priv->status & STATUS_ASSOCIATED)
5796 netif_carrier_off(dev);
5797 netif_stop_queue(dev);
5798
5799 /* Flush the TX queue ... */
5800 while (!list_empty(&priv->tx_pend_list)) {
5801 element = priv->tx_pend_list.next;
5802 packet = list_entry(element, struct ipw2100_tx_packet, list);
5803
5804 list_del(element);
5805 DEC_STAT(&priv->tx_pend_stat);
5806
5807 libipw_txb_free(packet->info.d_struct.txb);
5808 packet->info.d_struct.txb = NULL;
5809
5810 list_add_tail(element, &priv->tx_free_list);
5811 INC_STAT(&priv->tx_free_stat);
5812 }
5813 spin_unlock_irqrestore(&priv->low_lock, flags);
5814
5815 IPW_DEBUG_INFO("exit\n");
5816
5817 return 0;
5818}
5819
5820/*
5821 * TODO: Fix this function... its just wrong
5822 */
5823static void ipw2100_tx_timeout(struct net_device *dev, unsigned int txqueue)
5824{
5825 struct ipw2100_priv *priv = libipw_priv(dev);
5826
5827 dev->stats.tx_errors++;
5828
5829#ifdef CONFIG_IPW2100_MONITOR
5830 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
5831 return;
5832#endif
5833
5834 IPW_DEBUG_INFO("%s: TX timed out. Scheduling firmware restart.\n",
5835 dev->name);
5836 schedule_reset(priv);
5837}
5838
5839static int ipw2100_wpa_enable(struct ipw2100_priv *priv, int value)
5840{
5841 /* This is called when wpa_supplicant loads and closes the driver
5842 * interface. */
5843 priv->ieee->wpa_enabled = value;
5844 return 0;
5845}
5846
5847static int ipw2100_wpa_set_auth_algs(struct ipw2100_priv *priv, int value)
5848{
5849
5850 struct libipw_device *ieee = priv->ieee;
5851 struct libipw_security sec = {
5852 .flags = SEC_AUTH_MODE,
5853 };
5854 int ret = 0;
5855
5856 if (value & IW_AUTH_ALG_SHARED_KEY) {
5857 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
5858 ieee->open_wep = 0;
5859 } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
5860 sec.auth_mode = WLAN_AUTH_OPEN;
5861 ieee->open_wep = 1;
5862 } else if (value & IW_AUTH_ALG_LEAP) {
5863 sec.auth_mode = WLAN_AUTH_LEAP;
5864 ieee->open_wep = 1;
5865 } else
5866 return -EINVAL;
5867
5868 if (ieee->set_security)
5869 ieee->set_security(ieee->dev, &sec);
5870 else
5871 ret = -EOPNOTSUPP;
5872
5873 return ret;
5874}
5875
5876static void ipw2100_wpa_assoc_frame(struct ipw2100_priv *priv,
5877 char *wpa_ie, int wpa_ie_len)
5878{
5879
5880 struct ipw2100_wpa_assoc_frame frame;
5881
5882 frame.fixed_ie_mask = 0;
5883
5884 /* copy WPA IE */
5885 memcpy(frame.var_ie, wpa_ie, wpa_ie_len);
5886 frame.var_ie_len = wpa_ie_len;
5887
5888 /* make sure WPA is enabled */
5889 ipw2100_wpa_enable(priv, 1);
5890 ipw2100_set_wpa_ie(priv, &frame, 0);
5891}
5892
5893static void ipw_ethtool_get_drvinfo(struct net_device *dev,
5894 struct ethtool_drvinfo *info)
5895{
5896 struct ipw2100_priv *priv = libipw_priv(dev);
5897 char fw_ver[64], ucode_ver[64];
5898
5899 strscpy(info->driver, DRV_NAME, sizeof(info->driver));
5900 strscpy(info->version, DRV_VERSION, sizeof(info->version));
5901
5902 ipw2100_get_fwversion(priv, fw_ver, sizeof(fw_ver));
5903 ipw2100_get_ucodeversion(priv, ucode_ver, sizeof(ucode_ver));
5904
5905 snprintf(info->fw_version, sizeof(info->fw_version), "%s:%d:%s",
5906 fw_ver, priv->eeprom_version, ucode_ver);
5907
5908 strscpy(info->bus_info, pci_name(priv->pci_dev),
5909 sizeof(info->bus_info));
5910}
5911
5912static u32 ipw2100_ethtool_get_link(struct net_device *dev)
5913{
5914 struct ipw2100_priv *priv = libipw_priv(dev);
5915 return (priv->status & STATUS_ASSOCIATED) ? 1 : 0;
5916}
5917
5918static const struct ethtool_ops ipw2100_ethtool_ops = {
5919 .get_link = ipw2100_ethtool_get_link,
5920 .get_drvinfo = ipw_ethtool_get_drvinfo,
5921};
5922
5923static void ipw2100_hang_check(struct work_struct *work)
5924{
5925 struct ipw2100_priv *priv =
5926 container_of(work, struct ipw2100_priv, hang_check.work);
5927 unsigned long flags;
5928 u32 rtc = 0xa5a5a5a5;
5929 u32 len = sizeof(rtc);
5930 int restart = 0;
5931
5932 spin_lock_irqsave(&priv->low_lock, flags);
5933
5934 if (priv->fatal_error != 0) {
5935 /* If fatal_error is set then we need to restart */
5936 IPW_DEBUG_INFO("%s: Hardware fatal error detected.\n",
5937 priv->net_dev->name);
5938
5939 restart = 1;
5940 } else if (ipw2100_get_ordinal(priv, IPW_ORD_RTC_TIME, &rtc, &len) ||
5941 (rtc == priv->last_rtc)) {
5942 /* Check if firmware is hung */
5943 IPW_DEBUG_INFO("%s: Firmware RTC stalled.\n",
5944 priv->net_dev->name);
5945
5946 restart = 1;
5947 }
5948
5949 if (restart) {
5950 /* Kill timer */
5951 priv->stop_hang_check = 1;
5952 priv->hangs++;
5953
5954 /* Restart the NIC */
5955 schedule_reset(priv);
5956 }
5957
5958 priv->last_rtc = rtc;
5959
5960 if (!priv->stop_hang_check)
5961 schedule_delayed_work(&priv->hang_check, HZ / 2);
5962
5963 spin_unlock_irqrestore(&priv->low_lock, flags);
5964}
5965
5966static void ipw2100_rf_kill(struct work_struct *work)
5967{
5968 struct ipw2100_priv *priv =
5969 container_of(work, struct ipw2100_priv, rf_kill.work);
5970 unsigned long flags;
5971
5972 spin_lock_irqsave(&priv->low_lock, flags);
5973
5974 if (rf_kill_active(priv)) {
5975 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
5976 if (!priv->stop_rf_kill)
5977 schedule_delayed_work(&priv->rf_kill,
5978 round_jiffies_relative(HZ));
5979 goto exit_unlock;
5980 }
5981
5982 /* RF Kill is now disabled, so bring the device back up */
5983
5984 if (!(priv->status & STATUS_RF_KILL_MASK)) {
5985 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
5986 "device\n");
5987 schedule_reset(priv);
5988 } else
5989 IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still "
5990 "enabled\n");
5991
5992 exit_unlock:
5993 spin_unlock_irqrestore(&priv->low_lock, flags);
5994}
5995
5996static void ipw2100_irq_tasklet(struct tasklet_struct *t);
5997
5998static const struct net_device_ops ipw2100_netdev_ops = {
5999 .ndo_open = ipw2100_open,
6000 .ndo_stop = ipw2100_close,
6001 .ndo_start_xmit = libipw_xmit,
6002 .ndo_tx_timeout = ipw2100_tx_timeout,
6003 .ndo_set_mac_address = ipw2100_set_address,
6004 .ndo_validate_addr = eth_validate_addr,
6005};
6006
6007/* Look into using netdev destructor to shutdown libipw? */
6008
6009static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
6010 void __iomem * ioaddr)
6011{
6012 struct ipw2100_priv *priv;
6013 struct net_device *dev;
6014
6015 dev = alloc_libipw(sizeof(struct ipw2100_priv), 0);
6016 if (!dev)
6017 return NULL;
6018 priv = libipw_priv(dev);
6019 priv->ieee = netdev_priv(dev);
6020 priv->pci_dev = pci_dev;
6021 priv->net_dev = dev;
6022 priv->ioaddr = ioaddr;
6023
6024 priv->ieee->hard_start_xmit = ipw2100_tx;
6025 priv->ieee->set_security = shim__set_security;
6026
6027 priv->ieee->perfect_rssi = -20;
6028 priv->ieee->worst_rssi = -85;
6029
6030 dev->netdev_ops = &ipw2100_netdev_ops;
6031 dev->ethtool_ops = &ipw2100_ethtool_ops;
6032 dev->wireless_handlers = &ipw2100_wx_handler_def;
6033 priv->wireless_data.libipw = priv->ieee;
6034 dev->wireless_data = &priv->wireless_data;
6035 dev->watchdog_timeo = 3 * HZ;
6036 dev->irq = 0;
6037 dev->min_mtu = 68;
6038 dev->max_mtu = LIBIPW_DATA_LEN;
6039
6040 /* NOTE: We don't use the wireless_handlers hook
6041 * in dev as the system will start throwing WX requests
6042 * to us before we're actually initialized and it just
6043 * ends up causing problems. So, we just handle
6044 * the WX extensions through the ipw2100_ioctl interface */
6045
6046 /* memset() puts everything to 0, so we only have explicitly set
6047 * those values that need to be something else */
6048
6049 /* If power management is turned on, default to AUTO mode */
6050 priv->power_mode = IPW_POWER_AUTO;
6051
6052#ifdef CONFIG_IPW2100_MONITOR
6053 priv->config |= CFG_CRC_CHECK;
6054#endif
6055 priv->ieee->wpa_enabled = 0;
6056 priv->ieee->drop_unencrypted = 0;
6057 priv->ieee->privacy_invoked = 0;
6058 priv->ieee->ieee802_1x = 1;
6059
6060 /* Set module parameters */
6061 switch (network_mode) {
6062 case 1:
6063 priv->ieee->iw_mode = IW_MODE_ADHOC;
6064 break;
6065#ifdef CONFIG_IPW2100_MONITOR
6066 case 2:
6067 priv->ieee->iw_mode = IW_MODE_MONITOR;
6068 break;
6069#endif
6070 default:
6071 case 0:
6072 priv->ieee->iw_mode = IW_MODE_INFRA;
6073 break;
6074 }
6075
6076 if (disable == 1)
6077 priv->status |= STATUS_RF_KILL_SW;
6078
6079 if (channel != 0 &&
6080 ((channel >= REG_MIN_CHANNEL) && (channel <= REG_MAX_CHANNEL))) {
6081 priv->config |= CFG_STATIC_CHANNEL;
6082 priv->channel = channel;
6083 }
6084
6085 if (associate)
6086 priv->config |= CFG_ASSOCIATE;
6087
6088 priv->beacon_interval = DEFAULT_BEACON_INTERVAL;
6089 priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
6090 priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
6091 priv->rts_threshold = DEFAULT_RTS_THRESHOLD | RTS_DISABLED;
6092 priv->frag_threshold = DEFAULT_FTS | FRAG_DISABLED;
6093 priv->tx_power = IPW_TX_POWER_DEFAULT;
6094 priv->tx_rates = DEFAULT_TX_RATES;
6095
6096 strcpy(priv->nick, "ipw2100");
6097
6098 spin_lock_init(&priv->low_lock);
6099 mutex_init(&priv->action_mutex);
6100 mutex_init(&priv->adapter_mutex);
6101
6102 init_waitqueue_head(&priv->wait_command_queue);
6103
6104 netif_carrier_off(dev);
6105
6106 INIT_LIST_HEAD(&priv->msg_free_list);
6107 INIT_LIST_HEAD(&priv->msg_pend_list);
6108 INIT_STAT(&priv->msg_free_stat);
6109 INIT_STAT(&priv->msg_pend_stat);
6110
6111 INIT_LIST_HEAD(&priv->tx_free_list);
6112 INIT_LIST_HEAD(&priv->tx_pend_list);
6113 INIT_STAT(&priv->tx_free_stat);
6114 INIT_STAT(&priv->tx_pend_stat);
6115
6116 INIT_LIST_HEAD(&priv->fw_pend_list);
6117 INIT_STAT(&priv->fw_pend_stat);
6118
6119 INIT_DELAYED_WORK(&priv->reset_work, ipw2100_reset_adapter);
6120 INIT_DELAYED_WORK(&priv->security_work, ipw2100_security_work);
6121 INIT_DELAYED_WORK(&priv->wx_event_work, ipw2100_wx_event_work);
6122 INIT_DELAYED_WORK(&priv->hang_check, ipw2100_hang_check);
6123 INIT_DELAYED_WORK(&priv->rf_kill, ipw2100_rf_kill);
6124 INIT_DELAYED_WORK(&priv->scan_event, ipw2100_scan_event);
6125
6126 tasklet_setup(&priv->irq_tasklet, ipw2100_irq_tasklet);
6127
6128 /* NOTE: We do not start the deferred work for status checks yet */
6129 priv->stop_rf_kill = 1;
6130 priv->stop_hang_check = 1;
6131
6132 return dev;
6133}
6134
6135static int ipw2100_pci_init_one(struct pci_dev *pci_dev,
6136 const struct pci_device_id *ent)
6137{
6138 void __iomem *ioaddr;
6139 struct net_device *dev = NULL;
6140 struct ipw2100_priv *priv = NULL;
6141 int err = 0;
6142 int registered = 0;
6143 u32 val;
6144
6145 IPW_DEBUG_INFO("enter\n");
6146
6147 if (!(pci_resource_flags(pci_dev, 0) & IORESOURCE_MEM)) {
6148 IPW_DEBUG_INFO("weird - resource type is not memory\n");
6149 err = -ENODEV;
6150 goto out;
6151 }
6152
6153 ioaddr = pci_iomap(pci_dev, 0, 0);
6154 if (!ioaddr) {
6155 printk(KERN_WARNING DRV_NAME
6156 "Error calling ioremap.\n");
6157 err = -EIO;
6158 goto fail;
6159 }
6160
6161 /* allocate and initialize our net_device */
6162 dev = ipw2100_alloc_device(pci_dev, ioaddr);
6163 if (!dev) {
6164 printk(KERN_WARNING DRV_NAME
6165 "Error calling ipw2100_alloc_device.\n");
6166 err = -ENOMEM;
6167 goto fail;
6168 }
6169
6170 /* set up PCI mappings for device */
6171 err = pci_enable_device(pci_dev);
6172 if (err) {
6173 printk(KERN_WARNING DRV_NAME
6174 "Error calling pci_enable_device.\n");
6175 return err;
6176 }
6177
6178 priv = libipw_priv(dev);
6179
6180 pci_set_master(pci_dev);
6181 pci_set_drvdata(pci_dev, priv);
6182
6183 err = dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32));
6184 if (err) {
6185 printk(KERN_WARNING DRV_NAME
6186 "Error calling pci_set_dma_mask.\n");
6187 pci_disable_device(pci_dev);
6188 return err;
6189 }
6190
6191 err = pci_request_regions(pci_dev, DRV_NAME);
6192 if (err) {
6193 printk(KERN_WARNING DRV_NAME
6194 "Error calling pci_request_regions.\n");
6195 pci_disable_device(pci_dev);
6196 return err;
6197 }
6198
6199 /* We disable the RETRY_TIMEOUT register (0x41) to keep
6200 * PCI Tx retries from interfering with C3 CPU state */
6201 pci_read_config_dword(pci_dev, 0x40, &val);
6202 if ((val & 0x0000ff00) != 0)
6203 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6204
6205 if (!ipw2100_hw_is_adapter_in_system(dev)) {
6206 printk(KERN_WARNING DRV_NAME
6207 "Device not found via register read.\n");
6208 err = -ENODEV;
6209 goto fail;
6210 }
6211
6212 SET_NETDEV_DEV(dev, &pci_dev->dev);
6213
6214 /* Force interrupts to be shut off on the device */
6215 priv->status |= STATUS_INT_ENABLED;
6216 ipw2100_disable_interrupts(priv);
6217
6218 /* Allocate and initialize the Tx/Rx queues and lists */
6219 if (ipw2100_queues_allocate(priv)) {
6220 printk(KERN_WARNING DRV_NAME
6221 "Error calling ipw2100_queues_allocate.\n");
6222 err = -ENOMEM;
6223 goto fail;
6224 }
6225 ipw2100_queues_initialize(priv);
6226
6227 err = request_irq(pci_dev->irq,
6228 ipw2100_interrupt, IRQF_SHARED, dev->name, priv);
6229 if (err) {
6230 printk(KERN_WARNING DRV_NAME
6231 "Error calling request_irq: %d.\n", pci_dev->irq);
6232 goto fail;
6233 }
6234 dev->irq = pci_dev->irq;
6235
6236 IPW_DEBUG_INFO("Attempting to register device...\n");
6237
6238 printk(KERN_INFO DRV_NAME
6239 ": Detected Intel PRO/Wireless 2100 Network Connection\n");
6240
6241 err = ipw2100_up(priv, 1);
6242 if (err)
6243 goto fail;
6244
6245 err = ipw2100_wdev_init(dev);
6246 if (err)
6247 goto fail;
6248 registered = 1;
6249
6250 /* Bring up the interface. Pre 0.46, after we registered the
6251 * network device we would call ipw2100_up. This introduced a race
6252 * condition with newer hotplug configurations (network was coming
6253 * up and making calls before the device was initialized).
6254 */
6255 err = register_netdev(dev);
6256 if (err) {
6257 printk(KERN_WARNING DRV_NAME
6258 "Error calling register_netdev.\n");
6259 goto fail;
6260 }
6261 registered = 2;
6262
6263 mutex_lock(&priv->action_mutex);
6264
6265 IPW_DEBUG_INFO("%s: Bound to %s\n", dev->name, pci_name(pci_dev));
6266
6267 /* perform this after register_netdev so that dev->name is set */
6268 err = sysfs_create_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6269 if (err)
6270 goto fail_unlock;
6271
6272 /* If the RF Kill switch is disabled, go ahead and complete the
6273 * startup sequence */
6274 if (!(priv->status & STATUS_RF_KILL_MASK)) {
6275 /* Enable the adapter - sends HOST_COMPLETE */
6276 if (ipw2100_enable_adapter(priv)) {
6277 printk(KERN_WARNING DRV_NAME
6278 ": %s: failed in call to enable adapter.\n",
6279 priv->net_dev->name);
6280 ipw2100_hw_stop_adapter(priv);
6281 err = -EIO;
6282 goto fail_unlock;
6283 }
6284
6285 /* Start a scan . . . */
6286 ipw2100_set_scan_options(priv);
6287 ipw2100_start_scan(priv);
6288 }
6289
6290 IPW_DEBUG_INFO("exit\n");
6291
6292 priv->status |= STATUS_INITIALIZED;
6293
6294 mutex_unlock(&priv->action_mutex);
6295out:
6296 return err;
6297
6298 fail_unlock:
6299 mutex_unlock(&priv->action_mutex);
6300 fail:
6301 if (dev) {
6302 if (registered >= 2)
6303 unregister_netdev(dev);
6304
6305 if (registered) {
6306 wiphy_unregister(priv->ieee->wdev.wiphy);
6307 kfree(priv->ieee->bg_band.channels);
6308 }
6309
6310 ipw2100_hw_stop_adapter(priv);
6311
6312 ipw2100_disable_interrupts(priv);
6313
6314 if (dev->irq)
6315 free_irq(dev->irq, priv);
6316
6317 ipw2100_kill_works(priv);
6318
6319 /* These are safe to call even if they weren't allocated */
6320 ipw2100_queues_free(priv);
6321 sysfs_remove_group(&pci_dev->dev.kobj,
6322 &ipw2100_attribute_group);
6323
6324 free_libipw(dev, 0);
6325 }
6326
6327 pci_iounmap(pci_dev, ioaddr);
6328
6329 pci_release_regions(pci_dev);
6330 pci_disable_device(pci_dev);
6331 goto out;
6332}
6333
6334static void ipw2100_pci_remove_one(struct pci_dev *pci_dev)
6335{
6336 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6337 struct net_device *dev = priv->net_dev;
6338
6339 mutex_lock(&priv->action_mutex);
6340
6341 priv->status &= ~STATUS_INITIALIZED;
6342
6343 sysfs_remove_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6344
6345#ifdef CONFIG_PM
6346 if (ipw2100_firmware.version)
6347 ipw2100_release_firmware(priv, &ipw2100_firmware);
6348#endif
6349 /* Take down the hardware */
6350 ipw2100_down(priv);
6351
6352 /* Release the mutex so that the network subsystem can
6353 * complete any needed calls into the driver... */
6354 mutex_unlock(&priv->action_mutex);
6355
6356 /* Unregister the device first - this results in close()
6357 * being called if the device is open. If we free storage
6358 * first, then close() will crash.
6359 * FIXME: remove the comment above. */
6360 unregister_netdev(dev);
6361
6362 ipw2100_kill_works(priv);
6363
6364 ipw2100_queues_free(priv);
6365
6366 /* Free potential debugging firmware snapshot */
6367 ipw2100_snapshot_free(priv);
6368
6369 free_irq(dev->irq, priv);
6370
6371 pci_iounmap(pci_dev, priv->ioaddr);
6372
6373 /* wiphy_unregister needs to be here, before free_libipw */
6374 wiphy_unregister(priv->ieee->wdev.wiphy);
6375 kfree(priv->ieee->bg_band.channels);
6376 free_libipw(dev, 0);
6377
6378 pci_release_regions(pci_dev);
6379 pci_disable_device(pci_dev);
6380
6381 IPW_DEBUG_INFO("exit\n");
6382}
6383
6384static int __maybe_unused ipw2100_suspend(struct device *dev_d)
6385{
6386 struct ipw2100_priv *priv = dev_get_drvdata(dev_d);
6387 struct net_device *dev = priv->net_dev;
6388
6389 IPW_DEBUG_INFO("%s: Going into suspend...\n", dev->name);
6390
6391 mutex_lock(&priv->action_mutex);
6392 if (priv->status & STATUS_INITIALIZED) {
6393 /* Take down the device; powers it off, etc. */
6394 ipw2100_down(priv);
6395 }
6396
6397 /* Remove the PRESENT state of the device */
6398 netif_device_detach(dev);
6399
6400 priv->suspend_at = ktime_get_boottime_seconds();
6401
6402 mutex_unlock(&priv->action_mutex);
6403
6404 return 0;
6405}
6406
6407static int __maybe_unused ipw2100_resume(struct device *dev_d)
6408{
6409 struct pci_dev *pci_dev = to_pci_dev(dev_d);
6410 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6411 struct net_device *dev = priv->net_dev;
6412 u32 val;
6413
6414 if (IPW2100_PM_DISABLED)
6415 return 0;
6416
6417 mutex_lock(&priv->action_mutex);
6418
6419 IPW_DEBUG_INFO("%s: Coming out of suspend...\n", dev->name);
6420
6421 /*
6422 * Suspend/Resume resets the PCI configuration space, so we have to
6423 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
6424 * from interfering with C3 CPU state. pci_restore_state won't help
6425 * here since it only restores the first 64 bytes pci config header.
6426 */
6427 pci_read_config_dword(pci_dev, 0x40, &val);
6428 if ((val & 0x0000ff00) != 0)
6429 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6430
6431 /* Set the device back into the PRESENT state; this will also wake
6432 * the queue of needed */
6433 netif_device_attach(dev);
6434
6435 priv->suspend_time = ktime_get_boottime_seconds() - priv->suspend_at;
6436
6437 /* Bring the device back up */
6438 if (!(priv->status & STATUS_RF_KILL_SW))
6439 ipw2100_up(priv, 0);
6440
6441 mutex_unlock(&priv->action_mutex);
6442
6443 return 0;
6444}
6445
6446static void ipw2100_shutdown(struct pci_dev *pci_dev)
6447{
6448 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6449
6450 /* Take down the device; powers it off, etc. */
6451 ipw2100_down(priv);
6452
6453 pci_disable_device(pci_dev);
6454}
6455
6456#define IPW2100_DEV_ID(x) { PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, x }
6457
6458static const struct pci_device_id ipw2100_pci_id_table[] = {
6459 IPW2100_DEV_ID(0x2520), /* IN 2100A mPCI 3A */
6460 IPW2100_DEV_ID(0x2521), /* IN 2100A mPCI 3B */
6461 IPW2100_DEV_ID(0x2524), /* IN 2100A mPCI 3B */
6462 IPW2100_DEV_ID(0x2525), /* IN 2100A mPCI 3B */
6463 IPW2100_DEV_ID(0x2526), /* IN 2100A mPCI Gen A3 */
6464 IPW2100_DEV_ID(0x2522), /* IN 2100 mPCI 3B */
6465 IPW2100_DEV_ID(0x2523), /* IN 2100 mPCI 3A */
6466 IPW2100_DEV_ID(0x2527), /* IN 2100 mPCI 3B */
6467 IPW2100_DEV_ID(0x2528), /* IN 2100 mPCI 3B */
6468 IPW2100_DEV_ID(0x2529), /* IN 2100 mPCI 3B */
6469 IPW2100_DEV_ID(0x252B), /* IN 2100 mPCI 3A */
6470 IPW2100_DEV_ID(0x252C), /* IN 2100 mPCI 3A */
6471 IPW2100_DEV_ID(0x252D), /* IN 2100 mPCI 3A */
6472
6473 IPW2100_DEV_ID(0x2550), /* IB 2100A mPCI 3B */
6474 IPW2100_DEV_ID(0x2551), /* IB 2100 mPCI 3B */
6475 IPW2100_DEV_ID(0x2553), /* IB 2100 mPCI 3B */
6476 IPW2100_DEV_ID(0x2554), /* IB 2100 mPCI 3B */
6477 IPW2100_DEV_ID(0x2555), /* IB 2100 mPCI 3B */
6478
6479 IPW2100_DEV_ID(0x2560), /* DE 2100A mPCI 3A */
6480 IPW2100_DEV_ID(0x2562), /* DE 2100A mPCI 3A */
6481 IPW2100_DEV_ID(0x2563), /* DE 2100A mPCI 3A */
6482 IPW2100_DEV_ID(0x2561), /* DE 2100 mPCI 3A */
6483 IPW2100_DEV_ID(0x2565), /* DE 2100 mPCI 3A */
6484 IPW2100_DEV_ID(0x2566), /* DE 2100 mPCI 3A */
6485 IPW2100_DEV_ID(0x2567), /* DE 2100 mPCI 3A */
6486
6487 IPW2100_DEV_ID(0x2570), /* GA 2100 mPCI 3B */
6488
6489 IPW2100_DEV_ID(0x2580), /* TO 2100A mPCI 3B */
6490 IPW2100_DEV_ID(0x2582), /* TO 2100A mPCI 3B */
6491 IPW2100_DEV_ID(0x2583), /* TO 2100A mPCI 3B */
6492 IPW2100_DEV_ID(0x2581), /* TO 2100 mPCI 3B */
6493 IPW2100_DEV_ID(0x2585), /* TO 2100 mPCI 3B */
6494 IPW2100_DEV_ID(0x2586), /* TO 2100 mPCI 3B */
6495 IPW2100_DEV_ID(0x2587), /* TO 2100 mPCI 3B */
6496
6497 IPW2100_DEV_ID(0x2590), /* SO 2100A mPCI 3B */
6498 IPW2100_DEV_ID(0x2592), /* SO 2100A mPCI 3B */
6499 IPW2100_DEV_ID(0x2591), /* SO 2100 mPCI 3B */
6500 IPW2100_DEV_ID(0x2593), /* SO 2100 mPCI 3B */
6501 IPW2100_DEV_ID(0x2596), /* SO 2100 mPCI 3B */
6502 IPW2100_DEV_ID(0x2598), /* SO 2100 mPCI 3B */
6503
6504 IPW2100_DEV_ID(0x25A0), /* HP 2100 mPCI 3B */
6505 {0,},
6506};
6507
6508MODULE_DEVICE_TABLE(pci, ipw2100_pci_id_table);
6509
6510static SIMPLE_DEV_PM_OPS(ipw2100_pm_ops, ipw2100_suspend, ipw2100_resume);
6511
6512static struct pci_driver ipw2100_pci_driver = {
6513 .name = DRV_NAME,
6514 .id_table = ipw2100_pci_id_table,
6515 .probe = ipw2100_pci_init_one,
6516 .remove = ipw2100_pci_remove_one,
6517 .driver.pm = &ipw2100_pm_ops,
6518 .shutdown = ipw2100_shutdown,
6519};
6520
6521/*
6522 * Initialize the ipw2100 driver/module
6523 *
6524 * @returns 0 if ok, < 0 errno node con error.
6525 *
6526 * Note: we cannot init the /proc stuff until the PCI driver is there,
6527 * or we risk an unlikely race condition on someone accessing
6528 * uninitialized data in the PCI dev struct through /proc.
6529 */
6530static int __init ipw2100_init(void)
6531{
6532 int ret;
6533
6534 printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
6535 printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT);
6536
6537 cpu_latency_qos_add_request(&ipw2100_pm_qos_req, PM_QOS_DEFAULT_VALUE);
6538
6539 ret = pci_register_driver(&ipw2100_pci_driver);
6540 if (ret)
6541 goto out;
6542
6543#ifdef CONFIG_IPW2100_DEBUG
6544 ipw2100_debug_level = debug;
6545 ret = driver_create_file(&ipw2100_pci_driver.driver,
6546 &driver_attr_debug_level);
6547#endif
6548
6549out:
6550 return ret;
6551}
6552
6553/*
6554 * Cleanup ipw2100 driver registration
6555 */
6556static void __exit ipw2100_exit(void)
6557{
6558 /* FIXME: IPG: check that we have no instances of the devices open */
6559#ifdef CONFIG_IPW2100_DEBUG
6560 driver_remove_file(&ipw2100_pci_driver.driver,
6561 &driver_attr_debug_level);
6562#endif
6563 pci_unregister_driver(&ipw2100_pci_driver);
6564 cpu_latency_qos_remove_request(&ipw2100_pm_qos_req);
6565}
6566
6567module_init(ipw2100_init);
6568module_exit(ipw2100_exit);
6569
6570static int ipw2100_wx_get_name(struct net_device *dev,
6571 struct iw_request_info *info,
6572 union iwreq_data *wrqu, char *extra)
6573{
6574 /*
6575 * This can be called at any time. No action lock required
6576 */
6577
6578 struct ipw2100_priv *priv = libipw_priv(dev);
6579 if (!(priv->status & STATUS_ASSOCIATED))
6580 strcpy(wrqu->name, "unassociated");
6581 else
6582 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11b");
6583
6584 IPW_DEBUG_WX("Name: %s\n", wrqu->name);
6585 return 0;
6586}
6587
6588static int ipw2100_wx_set_freq(struct net_device *dev,
6589 struct iw_request_info *info,
6590 union iwreq_data *wrqu, char *extra)
6591{
6592 struct ipw2100_priv *priv = libipw_priv(dev);
6593 struct iw_freq *fwrq = &wrqu->freq;
6594 int err = 0;
6595
6596 if (priv->ieee->iw_mode == IW_MODE_INFRA)
6597 return -EOPNOTSUPP;
6598
6599 mutex_lock(&priv->action_mutex);
6600 if (!(priv->status & STATUS_INITIALIZED)) {
6601 err = -EIO;
6602 goto done;
6603 }
6604
6605 /* if setting by freq convert to channel */
6606 if (fwrq->e == 1) {
6607 if ((fwrq->m >= (int)2.412e8 && fwrq->m <= (int)2.487e8)) {
6608 int f = fwrq->m / 100000;
6609 int c = 0;
6610
6611 while ((c < REG_MAX_CHANNEL) &&
6612 (f != ipw2100_frequencies[c]))
6613 c++;
6614
6615 /* hack to fall through */
6616 fwrq->e = 0;
6617 fwrq->m = c + 1;
6618 }
6619 }
6620
6621 if (fwrq->e > 0 || fwrq->m > 1000) {
6622 err = -EOPNOTSUPP;
6623 goto done;
6624 } else { /* Set the channel */
6625 IPW_DEBUG_WX("SET Freq/Channel -> %d\n", fwrq->m);
6626 err = ipw2100_set_channel(priv, fwrq->m, 0);
6627 }
6628
6629 done:
6630 mutex_unlock(&priv->action_mutex);
6631 return err;
6632}
6633
6634static int ipw2100_wx_get_freq(struct net_device *dev,
6635 struct iw_request_info *info,
6636 union iwreq_data *wrqu, char *extra)
6637{
6638 /*
6639 * This can be called at any time. No action lock required
6640 */
6641
6642 struct ipw2100_priv *priv = libipw_priv(dev);
6643
6644 wrqu->freq.e = 0;
6645
6646 /* If we are associated, trying to associate, or have a statically
6647 * configured CHANNEL then return that; otherwise return ANY */
6648 if (priv->config & CFG_STATIC_CHANNEL ||
6649 priv->status & STATUS_ASSOCIATED)
6650 wrqu->freq.m = priv->channel;
6651 else
6652 wrqu->freq.m = 0;
6653
6654 IPW_DEBUG_WX("GET Freq/Channel -> %d\n", priv->channel);
6655 return 0;
6656
6657}
6658
6659static int ipw2100_wx_set_mode(struct net_device *dev,
6660 struct iw_request_info *info,
6661 union iwreq_data *wrqu, char *extra)
6662{
6663 struct ipw2100_priv *priv = libipw_priv(dev);
6664 int err = 0;
6665
6666 IPW_DEBUG_WX("SET Mode -> %d\n", wrqu->mode);
6667
6668 if (wrqu->mode == priv->ieee->iw_mode)
6669 return 0;
6670
6671 mutex_lock(&priv->action_mutex);
6672 if (!(priv->status & STATUS_INITIALIZED)) {
6673 err = -EIO;
6674 goto done;
6675 }
6676
6677 switch (wrqu->mode) {
6678#ifdef CONFIG_IPW2100_MONITOR
6679 case IW_MODE_MONITOR:
6680 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
6681 break;
6682#endif /* CONFIG_IPW2100_MONITOR */
6683 case IW_MODE_ADHOC:
6684 err = ipw2100_switch_mode(priv, IW_MODE_ADHOC);
6685 break;
6686 case IW_MODE_INFRA:
6687 case IW_MODE_AUTO:
6688 default:
6689 err = ipw2100_switch_mode(priv, IW_MODE_INFRA);
6690 break;
6691 }
6692
6693 done:
6694 mutex_unlock(&priv->action_mutex);
6695 return err;
6696}
6697
6698static int ipw2100_wx_get_mode(struct net_device *dev,
6699 struct iw_request_info *info,
6700 union iwreq_data *wrqu, char *extra)
6701{
6702 /*
6703 * This can be called at any time. No action lock required
6704 */
6705
6706 struct ipw2100_priv *priv = libipw_priv(dev);
6707
6708 wrqu->mode = priv->ieee->iw_mode;
6709 IPW_DEBUG_WX("GET Mode -> %d\n", wrqu->mode);
6710
6711 return 0;
6712}
6713
6714#define POWER_MODES 5
6715
6716/* Values are in microsecond */
6717static const s32 timeout_duration[POWER_MODES] = {
6718 350000,
6719 250000,
6720 75000,
6721 37000,
6722 25000,
6723};
6724
6725static const s32 period_duration[POWER_MODES] = {
6726 400000,
6727 700000,
6728 1000000,
6729 1000000,
6730 1000000
6731};
6732
6733static int ipw2100_wx_get_range(struct net_device *dev,
6734 struct iw_request_info *info,
6735 union iwreq_data *wrqu, char *extra)
6736{
6737 /*
6738 * This can be called at any time. No action lock required
6739 */
6740
6741 struct ipw2100_priv *priv = libipw_priv(dev);
6742 struct iw_range *range = (struct iw_range *)extra;
6743 u16 val;
6744 int i, level;
6745
6746 wrqu->data.length = sizeof(*range);
6747 memset(range, 0, sizeof(*range));
6748
6749 /* Let's try to keep this struct in the same order as in
6750 * linux/include/wireless.h
6751 */
6752
6753 /* TODO: See what values we can set, and remove the ones we can't
6754 * set, or fill them with some default data.
6755 */
6756
6757 /* ~5 Mb/s real (802.11b) */
6758 range->throughput = 5 * 1000 * 1000;
6759
6760// range->sensitivity; /* signal level threshold range */
6761
6762 range->max_qual.qual = 100;
6763 /* TODO: Find real max RSSI and stick here */
6764 range->max_qual.level = 0;
6765 range->max_qual.noise = 0;
6766 range->max_qual.updated = 7; /* Updated all three */
6767
6768 range->avg_qual.qual = 70; /* > 8% missed beacons is 'bad' */
6769 /* TODO: Find real 'good' to 'bad' threshold value for RSSI */
6770 range->avg_qual.level = 20 + IPW2100_RSSI_TO_DBM;
6771 range->avg_qual.noise = 0;
6772 range->avg_qual.updated = 7; /* Updated all three */
6773
6774 range->num_bitrates = RATE_COUNT;
6775
6776 for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++) {
6777 range->bitrate[i] = ipw2100_bg_rates[i].bitrate * 100 * 1000;
6778 }
6779
6780 range->min_rts = MIN_RTS_THRESHOLD;
6781 range->max_rts = MAX_RTS_THRESHOLD;
6782 range->min_frag = MIN_FRAG_THRESHOLD;
6783 range->max_frag = MAX_FRAG_THRESHOLD;
6784
6785 range->min_pmp = period_duration[0]; /* Minimal PM period */
6786 range->max_pmp = period_duration[POWER_MODES - 1]; /* Maximal PM period */
6787 range->min_pmt = timeout_duration[POWER_MODES - 1]; /* Minimal PM timeout */
6788 range->max_pmt = timeout_duration[0]; /* Maximal PM timeout */
6789
6790 /* How to decode max/min PM period */
6791 range->pmp_flags = IW_POWER_PERIOD;
6792 /* How to decode max/min PM period */
6793 range->pmt_flags = IW_POWER_TIMEOUT;
6794 /* What PM options are supported */
6795 range->pm_capa = IW_POWER_TIMEOUT | IW_POWER_PERIOD;
6796
6797 range->encoding_size[0] = 5;
6798 range->encoding_size[1] = 13; /* Different token sizes */
6799 range->num_encoding_sizes = 2; /* Number of entry in the list */
6800 range->max_encoding_tokens = WEP_KEYS; /* Max number of tokens */
6801// range->encoding_login_index; /* token index for login token */
6802
6803 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
6804 range->txpower_capa = IW_TXPOW_DBM;
6805 range->num_txpower = IW_MAX_TXPOWER;
6806 for (i = 0, level = (IPW_TX_POWER_MAX_DBM * 16);
6807 i < IW_MAX_TXPOWER;
6808 i++, level -=
6809 ((IPW_TX_POWER_MAX_DBM -
6810 IPW_TX_POWER_MIN_DBM) * 16) / (IW_MAX_TXPOWER - 1))
6811 range->txpower[i] = level / 16;
6812 } else {
6813 range->txpower_capa = 0;
6814 range->num_txpower = 0;
6815 }
6816
6817 /* Set the Wireless Extension versions */
6818 range->we_version_compiled = WIRELESS_EXT;
6819 range->we_version_source = 18;
6820
6821// range->retry_capa; /* What retry options are supported */
6822// range->retry_flags; /* How to decode max/min retry limit */
6823// range->r_time_flags; /* How to decode max/min retry life */
6824// range->min_retry; /* Minimal number of retries */
6825// range->max_retry; /* Maximal number of retries */
6826// range->min_r_time; /* Minimal retry lifetime */
6827// range->max_r_time; /* Maximal retry lifetime */
6828
6829 range->num_channels = FREQ_COUNT;
6830
6831 val = 0;
6832 for (i = 0; i < FREQ_COUNT; i++) {
6833 // TODO: Include only legal frequencies for some countries
6834// if (local->channel_mask & (1 << i)) {
6835 range->freq[val].i = i + 1;
6836 range->freq[val].m = ipw2100_frequencies[i] * 100000;
6837 range->freq[val].e = 1;
6838 val++;
6839// }
6840 if (val == IW_MAX_FREQUENCIES)
6841 break;
6842 }
6843 range->num_frequency = val;
6844
6845 /* Event capability (kernel + driver) */
6846 range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
6847 IW_EVENT_CAPA_MASK(SIOCGIWAP));
6848 range->event_capa[1] = IW_EVENT_CAPA_K_1;
6849
6850 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
6851 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
6852
6853 IPW_DEBUG_WX("GET Range\n");
6854
6855 return 0;
6856}
6857
6858static int ipw2100_wx_set_wap(struct net_device *dev,
6859 struct iw_request_info *info,
6860 union iwreq_data *wrqu, char *extra)
6861{
6862 struct ipw2100_priv *priv = libipw_priv(dev);
6863 int err = 0;
6864
6865 // sanity checks
6866 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
6867 return -EINVAL;
6868
6869 mutex_lock(&priv->action_mutex);
6870 if (!(priv->status & STATUS_INITIALIZED)) {
6871 err = -EIO;
6872 goto done;
6873 }
6874
6875 if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data) ||
6876 is_zero_ether_addr(wrqu->ap_addr.sa_data)) {
6877 /* we disable mandatory BSSID association */
6878 IPW_DEBUG_WX("exit - disable mandatory BSSID\n");
6879 priv->config &= ~CFG_STATIC_BSSID;
6880 err = ipw2100_set_mandatory_bssid(priv, NULL, 0);
6881 goto done;
6882 }
6883
6884 priv->config |= CFG_STATIC_BSSID;
6885 memcpy(priv->mandatory_bssid_mac, wrqu->ap_addr.sa_data, ETH_ALEN);
6886
6887 err = ipw2100_set_mandatory_bssid(priv, wrqu->ap_addr.sa_data, 0);
6888
6889 IPW_DEBUG_WX("SET BSSID -> %pM\n", wrqu->ap_addr.sa_data);
6890
6891 done:
6892 mutex_unlock(&priv->action_mutex);
6893 return err;
6894}
6895
6896static int ipw2100_wx_get_wap(struct net_device *dev,
6897 struct iw_request_info *info,
6898 union iwreq_data *wrqu, char *extra)
6899{
6900 /*
6901 * This can be called at any time. No action lock required
6902 */
6903
6904 struct ipw2100_priv *priv = libipw_priv(dev);
6905
6906 /* If we are associated, trying to associate, or have a statically
6907 * configured BSSID then return that; otherwise return ANY */
6908 if (priv->config & CFG_STATIC_BSSID || priv->status & STATUS_ASSOCIATED) {
6909 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
6910 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
6911 } else
6912 eth_zero_addr(wrqu->ap_addr.sa_data);
6913
6914 IPW_DEBUG_WX("Getting WAP BSSID: %pM\n", wrqu->ap_addr.sa_data);
6915 return 0;
6916}
6917
6918static int ipw2100_wx_set_essid(struct net_device *dev,
6919 struct iw_request_info *info,
6920 union iwreq_data *wrqu, char *extra)
6921{
6922 struct ipw2100_priv *priv = libipw_priv(dev);
6923 char *essid = ""; /* ANY */
6924 int length = 0;
6925 int err = 0;
6926
6927 mutex_lock(&priv->action_mutex);
6928 if (!(priv->status & STATUS_INITIALIZED)) {
6929 err = -EIO;
6930 goto done;
6931 }
6932
6933 if (wrqu->essid.flags && wrqu->essid.length) {
6934 length = wrqu->essid.length;
6935 essid = extra;
6936 }
6937
6938 if (length == 0) {
6939 IPW_DEBUG_WX("Setting ESSID to ANY\n");
6940 priv->config &= ~CFG_STATIC_ESSID;
6941 err = ipw2100_set_essid(priv, NULL, 0, 0);
6942 goto done;
6943 }
6944
6945 length = min(length, IW_ESSID_MAX_SIZE);
6946
6947 priv->config |= CFG_STATIC_ESSID;
6948
6949 if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) {
6950 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
6951 err = 0;
6952 goto done;
6953 }
6954
6955 IPW_DEBUG_WX("Setting ESSID: '%*pE' (%d)\n", length, essid, length);
6956
6957 priv->essid_len = length;
6958 memcpy(priv->essid, essid, priv->essid_len);
6959
6960 err = ipw2100_set_essid(priv, essid, length, 0);
6961
6962 done:
6963 mutex_unlock(&priv->action_mutex);
6964 return err;
6965}
6966
6967static int ipw2100_wx_get_essid(struct net_device *dev,
6968 struct iw_request_info *info,
6969 union iwreq_data *wrqu, char *extra)
6970{
6971 /*
6972 * This can be called at any time. No action lock required
6973 */
6974
6975 struct ipw2100_priv *priv = libipw_priv(dev);
6976
6977 /* If we are associated, trying to associate, or have a statically
6978 * configured ESSID then return that; otherwise return ANY */
6979 if (priv->config & CFG_STATIC_ESSID || priv->status & STATUS_ASSOCIATED) {
6980 IPW_DEBUG_WX("Getting essid: '%*pE'\n",
6981 priv->essid_len, priv->essid);
6982 memcpy(extra, priv->essid, priv->essid_len);
6983 wrqu->essid.length = priv->essid_len;
6984 wrqu->essid.flags = 1; /* active */
6985 } else {
6986 IPW_DEBUG_WX("Getting essid: ANY\n");
6987 wrqu->essid.length = 0;
6988 wrqu->essid.flags = 0; /* active */
6989 }
6990
6991 return 0;
6992}
6993
6994static int ipw2100_wx_set_nick(struct net_device *dev,
6995 struct iw_request_info *info,
6996 union iwreq_data *wrqu, char *extra)
6997{
6998 /*
6999 * This can be called at any time. No action lock required
7000 */
7001
7002 struct ipw2100_priv *priv = libipw_priv(dev);
7003
7004 if (wrqu->data.length > IW_ESSID_MAX_SIZE)
7005 return -E2BIG;
7006
7007 wrqu->data.length = min_t(size_t, wrqu->data.length, sizeof(priv->nick));
7008 memset(priv->nick, 0, sizeof(priv->nick));
7009 memcpy(priv->nick, extra, wrqu->data.length);
7010
7011 IPW_DEBUG_WX("SET Nickname -> %s\n", priv->nick);
7012
7013 return 0;
7014}
7015
7016static int ipw2100_wx_get_nick(struct net_device *dev,
7017 struct iw_request_info *info,
7018 union iwreq_data *wrqu, char *extra)
7019{
7020 /*
7021 * This can be called at any time. No action lock required
7022 */
7023
7024 struct ipw2100_priv *priv = libipw_priv(dev);
7025
7026 wrqu->data.length = strlen(priv->nick);
7027 memcpy(extra, priv->nick, wrqu->data.length);
7028 wrqu->data.flags = 1; /* active */
7029
7030 IPW_DEBUG_WX("GET Nickname -> %s\n", extra);
7031
7032 return 0;
7033}
7034
7035static int ipw2100_wx_set_rate(struct net_device *dev,
7036 struct iw_request_info *info,
7037 union iwreq_data *wrqu, char *extra)
7038{
7039 struct ipw2100_priv *priv = libipw_priv(dev);
7040 u32 target_rate = wrqu->bitrate.value;
7041 u32 rate;
7042 int err = 0;
7043
7044 mutex_lock(&priv->action_mutex);
7045 if (!(priv->status & STATUS_INITIALIZED)) {
7046 err = -EIO;
7047 goto done;
7048 }
7049
7050 rate = 0;
7051
7052 if (target_rate == 1000000 ||
7053 (!wrqu->bitrate.fixed && target_rate > 1000000))
7054 rate |= TX_RATE_1_MBIT;
7055 if (target_rate == 2000000 ||
7056 (!wrqu->bitrate.fixed && target_rate > 2000000))
7057 rate |= TX_RATE_2_MBIT;
7058 if (target_rate == 5500000 ||
7059 (!wrqu->bitrate.fixed && target_rate > 5500000))
7060 rate |= TX_RATE_5_5_MBIT;
7061 if (target_rate == 11000000 ||
7062 (!wrqu->bitrate.fixed && target_rate > 11000000))
7063 rate |= TX_RATE_11_MBIT;
7064 if (rate == 0)
7065 rate = DEFAULT_TX_RATES;
7066
7067 err = ipw2100_set_tx_rates(priv, rate, 0);
7068
7069 IPW_DEBUG_WX("SET Rate -> %04X\n", rate);
7070 done:
7071 mutex_unlock(&priv->action_mutex);
7072 return err;
7073}
7074
7075static int ipw2100_wx_get_rate(struct net_device *dev,
7076 struct iw_request_info *info,
7077 union iwreq_data *wrqu, char *extra)
7078{
7079 struct ipw2100_priv *priv = libipw_priv(dev);
7080 int val;
7081 unsigned int len = sizeof(val);
7082 int err = 0;
7083
7084 if (!(priv->status & STATUS_ENABLED) ||
7085 priv->status & STATUS_RF_KILL_MASK ||
7086 !(priv->status & STATUS_ASSOCIATED)) {
7087 wrqu->bitrate.value = 0;
7088 return 0;
7089 }
7090
7091 mutex_lock(&priv->action_mutex);
7092 if (!(priv->status & STATUS_INITIALIZED)) {
7093 err = -EIO;
7094 goto done;
7095 }
7096
7097 err = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &val, &len);
7098 if (err) {
7099 IPW_DEBUG_WX("failed querying ordinals.\n");
7100 goto done;
7101 }
7102
7103 switch (val & TX_RATE_MASK) {
7104 case TX_RATE_1_MBIT:
7105 wrqu->bitrate.value = 1000000;
7106 break;
7107 case TX_RATE_2_MBIT:
7108 wrqu->bitrate.value = 2000000;
7109 break;
7110 case TX_RATE_5_5_MBIT:
7111 wrqu->bitrate.value = 5500000;
7112 break;
7113 case TX_RATE_11_MBIT:
7114 wrqu->bitrate.value = 11000000;
7115 break;
7116 default:
7117 wrqu->bitrate.value = 0;
7118 }
7119
7120 IPW_DEBUG_WX("GET Rate -> %d\n", wrqu->bitrate.value);
7121
7122 done:
7123 mutex_unlock(&priv->action_mutex);
7124 return err;
7125}
7126
7127static int ipw2100_wx_set_rts(struct net_device *dev,
7128 struct iw_request_info *info,
7129 union iwreq_data *wrqu, char *extra)
7130{
7131 struct ipw2100_priv *priv = libipw_priv(dev);
7132 int value, err;
7133
7134 /* Auto RTS not yet supported */
7135 if (wrqu->rts.fixed == 0)
7136 return -EINVAL;
7137
7138 mutex_lock(&priv->action_mutex);
7139 if (!(priv->status & STATUS_INITIALIZED)) {
7140 err = -EIO;
7141 goto done;
7142 }
7143
7144 if (wrqu->rts.disabled)
7145 value = priv->rts_threshold | RTS_DISABLED;
7146 else {
7147 if (wrqu->rts.value < 1 || wrqu->rts.value > 2304) {
7148 err = -EINVAL;
7149 goto done;
7150 }
7151 value = wrqu->rts.value;
7152 }
7153
7154 err = ipw2100_set_rts_threshold(priv, value);
7155
7156 IPW_DEBUG_WX("SET RTS Threshold -> 0x%08X\n", value);
7157 done:
7158 mutex_unlock(&priv->action_mutex);
7159 return err;
7160}
7161
7162static int ipw2100_wx_get_rts(struct net_device *dev,
7163 struct iw_request_info *info,
7164 union iwreq_data *wrqu, char *extra)
7165{
7166 /*
7167 * This can be called at any time. No action lock required
7168 */
7169
7170 struct ipw2100_priv *priv = libipw_priv(dev);
7171
7172 wrqu->rts.value = priv->rts_threshold & ~RTS_DISABLED;
7173 wrqu->rts.fixed = 1; /* no auto select */
7174
7175 /* If RTS is set to the default value, then it is disabled */
7176 wrqu->rts.disabled = (priv->rts_threshold & RTS_DISABLED) ? 1 : 0;
7177
7178 IPW_DEBUG_WX("GET RTS Threshold -> 0x%08X\n", wrqu->rts.value);
7179
7180 return 0;
7181}
7182
7183static int ipw2100_wx_set_txpow(struct net_device *dev,
7184 struct iw_request_info *info,
7185 union iwreq_data *wrqu, char *extra)
7186{
7187 struct ipw2100_priv *priv = libipw_priv(dev);
7188 int err = 0, value;
7189
7190 if (ipw_radio_kill_sw(priv, wrqu->txpower.disabled))
7191 return -EINPROGRESS;
7192
7193 if (priv->ieee->iw_mode != IW_MODE_ADHOC)
7194 return 0;
7195
7196 if ((wrqu->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
7197 return -EINVAL;
7198
7199 if (wrqu->txpower.fixed == 0)
7200 value = IPW_TX_POWER_DEFAULT;
7201 else {
7202 if (wrqu->txpower.value < IPW_TX_POWER_MIN_DBM ||
7203 wrqu->txpower.value > IPW_TX_POWER_MAX_DBM)
7204 return -EINVAL;
7205
7206 value = wrqu->txpower.value;
7207 }
7208
7209 mutex_lock(&priv->action_mutex);
7210 if (!(priv->status & STATUS_INITIALIZED)) {
7211 err = -EIO;
7212 goto done;
7213 }
7214
7215 err = ipw2100_set_tx_power(priv, value);
7216
7217 IPW_DEBUG_WX("SET TX Power -> %d\n", value);
7218
7219 done:
7220 mutex_unlock(&priv->action_mutex);
7221 return err;
7222}
7223
7224static int ipw2100_wx_get_txpow(struct net_device *dev,
7225 struct iw_request_info *info,
7226 union iwreq_data *wrqu, char *extra)
7227{
7228 /*
7229 * This can be called at any time. No action lock required
7230 */
7231
7232 struct ipw2100_priv *priv = libipw_priv(dev);
7233
7234 wrqu->txpower.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0;
7235
7236 if (priv->tx_power == IPW_TX_POWER_DEFAULT) {
7237 wrqu->txpower.fixed = 0;
7238 wrqu->txpower.value = IPW_TX_POWER_MAX_DBM;
7239 } else {
7240 wrqu->txpower.fixed = 1;
7241 wrqu->txpower.value = priv->tx_power;
7242 }
7243
7244 wrqu->txpower.flags = IW_TXPOW_DBM;
7245
7246 IPW_DEBUG_WX("GET TX Power -> %d\n", wrqu->txpower.value);
7247
7248 return 0;
7249}
7250
7251static int ipw2100_wx_set_frag(struct net_device *dev,
7252 struct iw_request_info *info,
7253 union iwreq_data *wrqu, char *extra)
7254{
7255 /*
7256 * This can be called at any time. No action lock required
7257 */
7258
7259 struct ipw2100_priv *priv = libipw_priv(dev);
7260
7261 if (!wrqu->frag.fixed)
7262 return -EINVAL;
7263
7264 if (wrqu->frag.disabled) {
7265 priv->frag_threshold |= FRAG_DISABLED;
7266 priv->ieee->fts = DEFAULT_FTS;
7267 } else {
7268 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
7269 wrqu->frag.value > MAX_FRAG_THRESHOLD)
7270 return -EINVAL;
7271
7272 priv->ieee->fts = wrqu->frag.value & ~0x1;
7273 priv->frag_threshold = priv->ieee->fts;
7274 }
7275
7276 IPW_DEBUG_WX("SET Frag Threshold -> %d\n", priv->ieee->fts);
7277
7278 return 0;
7279}
7280
7281static int ipw2100_wx_get_frag(struct net_device *dev,
7282 struct iw_request_info *info,
7283 union iwreq_data *wrqu, char *extra)
7284{
7285 /*
7286 * This can be called at any time. No action lock required
7287 */
7288
7289 struct ipw2100_priv *priv = libipw_priv(dev);
7290 wrqu->frag.value = priv->frag_threshold & ~FRAG_DISABLED;
7291 wrqu->frag.fixed = 0; /* no auto select */
7292 wrqu->frag.disabled = (priv->frag_threshold & FRAG_DISABLED) ? 1 : 0;
7293
7294 IPW_DEBUG_WX("GET Frag Threshold -> %d\n", wrqu->frag.value);
7295
7296 return 0;
7297}
7298
7299static int ipw2100_wx_set_retry(struct net_device *dev,
7300 struct iw_request_info *info,
7301 union iwreq_data *wrqu, char *extra)
7302{
7303 struct ipw2100_priv *priv = libipw_priv(dev);
7304 int err = 0;
7305
7306 if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
7307 return -EINVAL;
7308
7309 if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
7310 return 0;
7311
7312 mutex_lock(&priv->action_mutex);
7313 if (!(priv->status & STATUS_INITIALIZED)) {
7314 err = -EIO;
7315 goto done;
7316 }
7317
7318 if (wrqu->retry.flags & IW_RETRY_SHORT) {
7319 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7320 IPW_DEBUG_WX("SET Short Retry Limit -> %d\n",
7321 wrqu->retry.value);
7322 goto done;
7323 }
7324
7325 if (wrqu->retry.flags & IW_RETRY_LONG) {
7326 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7327 IPW_DEBUG_WX("SET Long Retry Limit -> %d\n",
7328 wrqu->retry.value);
7329 goto done;
7330 }
7331
7332 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7333 if (!err)
7334 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7335
7336 IPW_DEBUG_WX("SET Both Retry Limits -> %d\n", wrqu->retry.value);
7337
7338 done:
7339 mutex_unlock(&priv->action_mutex);
7340 return err;
7341}
7342
7343static int ipw2100_wx_get_retry(struct net_device *dev,
7344 struct iw_request_info *info,
7345 union iwreq_data *wrqu, char *extra)
7346{
7347 /*
7348 * This can be called at any time. No action lock required
7349 */
7350
7351 struct ipw2100_priv *priv = libipw_priv(dev);
7352
7353 wrqu->retry.disabled = 0; /* can't be disabled */
7354
7355 if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME)
7356 return -EINVAL;
7357
7358 if (wrqu->retry.flags & IW_RETRY_LONG) {
7359 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
7360 wrqu->retry.value = priv->long_retry_limit;
7361 } else {
7362 wrqu->retry.flags =
7363 (priv->short_retry_limit !=
7364 priv->long_retry_limit) ?
7365 IW_RETRY_LIMIT | IW_RETRY_SHORT : IW_RETRY_LIMIT;
7366
7367 wrqu->retry.value = priv->short_retry_limit;
7368 }
7369
7370 IPW_DEBUG_WX("GET Retry -> %d\n", wrqu->retry.value);
7371
7372 return 0;
7373}
7374
7375static int ipw2100_wx_set_scan(struct net_device *dev,
7376 struct iw_request_info *info,
7377 union iwreq_data *wrqu, char *extra)
7378{
7379 struct ipw2100_priv *priv = libipw_priv(dev);
7380 int err = 0;
7381
7382 mutex_lock(&priv->action_mutex);
7383 if (!(priv->status & STATUS_INITIALIZED)) {
7384 err = -EIO;
7385 goto done;
7386 }
7387
7388 IPW_DEBUG_WX("Initiating scan...\n");
7389
7390 priv->user_requested_scan = 1;
7391 if (ipw2100_set_scan_options(priv) || ipw2100_start_scan(priv)) {
7392 IPW_DEBUG_WX("Start scan failed.\n");
7393
7394 /* TODO: Mark a scan as pending so when hardware initialized
7395 * a scan starts */
7396 }
7397
7398 done:
7399 mutex_unlock(&priv->action_mutex);
7400 return err;
7401}
7402
7403static int ipw2100_wx_get_scan(struct net_device *dev,
7404 struct iw_request_info *info,
7405 union iwreq_data *wrqu, char *extra)
7406{
7407 /*
7408 * This can be called at any time. No action lock required
7409 */
7410
7411 struct ipw2100_priv *priv = libipw_priv(dev);
7412 return libipw_wx_get_scan(priv->ieee, info, wrqu, extra);
7413}
7414
7415/*
7416 * Implementation based on code in hostap-driver v0.1.3 hostap_ioctl.c
7417 */
7418static int ipw2100_wx_set_encode(struct net_device *dev,
7419 struct iw_request_info *info,
7420 union iwreq_data *wrqu, char *key)
7421{
7422 /*
7423 * No check of STATUS_INITIALIZED required
7424 */
7425
7426 struct ipw2100_priv *priv = libipw_priv(dev);
7427 return libipw_wx_set_encode(priv->ieee, info, wrqu, key);
7428}
7429
7430static int ipw2100_wx_get_encode(struct net_device *dev,
7431 struct iw_request_info *info,
7432 union iwreq_data *wrqu, char *key)
7433{
7434 /*
7435 * This can be called at any time. No action lock required
7436 */
7437
7438 struct ipw2100_priv *priv = libipw_priv(dev);
7439 return libipw_wx_get_encode(priv->ieee, info, wrqu, key);
7440}
7441
7442static int ipw2100_wx_set_power(struct net_device *dev,
7443 struct iw_request_info *info,
7444 union iwreq_data *wrqu, char *extra)
7445{
7446 struct ipw2100_priv *priv = libipw_priv(dev);
7447 int err = 0;
7448
7449 mutex_lock(&priv->action_mutex);
7450 if (!(priv->status & STATUS_INITIALIZED)) {
7451 err = -EIO;
7452 goto done;
7453 }
7454
7455 if (wrqu->power.disabled) {
7456 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
7457 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
7458 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
7459 goto done;
7460 }
7461
7462 switch (wrqu->power.flags & IW_POWER_MODE) {
7463 case IW_POWER_ON: /* If not specified */
7464 case IW_POWER_MODE: /* If set all mask */
7465 case IW_POWER_ALL_R: /* If explicitly state all */
7466 break;
7467 default: /* Otherwise we don't support it */
7468 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
7469 wrqu->power.flags);
7470 err = -EOPNOTSUPP;
7471 goto done;
7472 }
7473
7474 /* If the user hasn't specified a power management mode yet, default
7475 * to BATTERY */
7476 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
7477 err = ipw2100_set_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
7478
7479 IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
7480
7481 done:
7482 mutex_unlock(&priv->action_mutex);
7483 return err;
7484
7485}
7486
7487static int ipw2100_wx_get_power(struct net_device *dev,
7488 struct iw_request_info *info,
7489 union iwreq_data *wrqu, char *extra)
7490{
7491 /*
7492 * This can be called at any time. No action lock required
7493 */
7494
7495 struct ipw2100_priv *priv = libipw_priv(dev);
7496
7497 if (!(priv->power_mode & IPW_POWER_ENABLED))
7498 wrqu->power.disabled = 1;
7499 else {
7500 wrqu->power.disabled = 0;
7501 wrqu->power.flags = 0;
7502 }
7503
7504 IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
7505
7506 return 0;
7507}
7508
7509/*
7510 * WE-18 WPA support
7511 */
7512
7513/* SIOCSIWGENIE */
7514static int ipw2100_wx_set_genie(struct net_device *dev,
7515 struct iw_request_info *info,
7516 union iwreq_data *wrqu, char *extra)
7517{
7518
7519 struct ipw2100_priv *priv = libipw_priv(dev);
7520 struct libipw_device *ieee = priv->ieee;
7521 u8 *buf;
7522
7523 if (!ieee->wpa_enabled)
7524 return -EOPNOTSUPP;
7525
7526 if (wrqu->data.length > MAX_WPA_IE_LEN ||
7527 (wrqu->data.length && extra == NULL))
7528 return -EINVAL;
7529
7530 if (wrqu->data.length) {
7531 buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL);
7532 if (buf == NULL)
7533 return -ENOMEM;
7534
7535 kfree(ieee->wpa_ie);
7536 ieee->wpa_ie = buf;
7537 ieee->wpa_ie_len = wrqu->data.length;
7538 } else {
7539 kfree(ieee->wpa_ie);
7540 ieee->wpa_ie = NULL;
7541 ieee->wpa_ie_len = 0;
7542 }
7543
7544 ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
7545
7546 return 0;
7547}
7548
7549/* SIOCGIWGENIE */
7550static int ipw2100_wx_get_genie(struct net_device *dev,
7551 struct iw_request_info *info,
7552 union iwreq_data *wrqu, char *extra)
7553{
7554 struct ipw2100_priv *priv = libipw_priv(dev);
7555 struct libipw_device *ieee = priv->ieee;
7556
7557 if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
7558 wrqu->data.length = 0;
7559 return 0;
7560 }
7561
7562 if (wrqu->data.length < ieee->wpa_ie_len)
7563 return -E2BIG;
7564
7565 wrqu->data.length = ieee->wpa_ie_len;
7566 memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
7567
7568 return 0;
7569}
7570
7571/* SIOCSIWAUTH */
7572static int ipw2100_wx_set_auth(struct net_device *dev,
7573 struct iw_request_info *info,
7574 union iwreq_data *wrqu, char *extra)
7575{
7576 struct ipw2100_priv *priv = libipw_priv(dev);
7577 struct libipw_device *ieee = priv->ieee;
7578 struct iw_param *param = &wrqu->param;
7579 struct lib80211_crypt_data *crypt;
7580 unsigned long flags;
7581 int ret = 0;
7582
7583 switch (param->flags & IW_AUTH_INDEX) {
7584 case IW_AUTH_WPA_VERSION:
7585 case IW_AUTH_CIPHER_PAIRWISE:
7586 case IW_AUTH_CIPHER_GROUP:
7587 case IW_AUTH_KEY_MGMT:
7588 /*
7589 * ipw2200 does not use these parameters
7590 */
7591 break;
7592
7593 case IW_AUTH_TKIP_COUNTERMEASURES:
7594 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
7595 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags)
7596 break;
7597
7598 flags = crypt->ops->get_flags(crypt->priv);
7599
7600 if (param->value)
7601 flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7602 else
7603 flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7604
7605 crypt->ops->set_flags(flags, crypt->priv);
7606
7607 break;
7608
7609 case IW_AUTH_DROP_UNENCRYPTED:{
7610 /* HACK:
7611 *
7612 * wpa_supplicant calls set_wpa_enabled when the driver
7613 * is loaded and unloaded, regardless of if WPA is being
7614 * used. No other calls are made which can be used to
7615 * determine if encryption will be used or not prior to
7616 * association being expected. If encryption is not being
7617 * used, drop_unencrypted is set to false, else true -- we
7618 * can use this to determine if the CAP_PRIVACY_ON bit should
7619 * be set.
7620 */
7621 struct libipw_security sec = {
7622 .flags = SEC_ENABLED,
7623 .enabled = param->value,
7624 };
7625 priv->ieee->drop_unencrypted = param->value;
7626 /* We only change SEC_LEVEL for open mode. Others
7627 * are set by ipw_wpa_set_encryption.
7628 */
7629 if (!param->value) {
7630 sec.flags |= SEC_LEVEL;
7631 sec.level = SEC_LEVEL_0;
7632 } else {
7633 sec.flags |= SEC_LEVEL;
7634 sec.level = SEC_LEVEL_1;
7635 }
7636 if (priv->ieee->set_security)
7637 priv->ieee->set_security(priv->ieee->dev, &sec);
7638 break;
7639 }
7640
7641 case IW_AUTH_80211_AUTH_ALG:
7642 ret = ipw2100_wpa_set_auth_algs(priv, param->value);
7643 break;
7644
7645 case IW_AUTH_WPA_ENABLED:
7646 ret = ipw2100_wpa_enable(priv, param->value);
7647 break;
7648
7649 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7650 ieee->ieee802_1x = param->value;
7651 break;
7652
7653 //case IW_AUTH_ROAMING_CONTROL:
7654 case IW_AUTH_PRIVACY_INVOKED:
7655 ieee->privacy_invoked = param->value;
7656 break;
7657
7658 default:
7659 return -EOPNOTSUPP;
7660 }
7661 return ret;
7662}
7663
7664/* SIOCGIWAUTH */
7665static int ipw2100_wx_get_auth(struct net_device *dev,
7666 struct iw_request_info *info,
7667 union iwreq_data *wrqu, char *extra)
7668{
7669 struct ipw2100_priv *priv = libipw_priv(dev);
7670 struct libipw_device *ieee = priv->ieee;
7671 struct lib80211_crypt_data *crypt;
7672 struct iw_param *param = &wrqu->param;
7673
7674 switch (param->flags & IW_AUTH_INDEX) {
7675 case IW_AUTH_WPA_VERSION:
7676 case IW_AUTH_CIPHER_PAIRWISE:
7677 case IW_AUTH_CIPHER_GROUP:
7678 case IW_AUTH_KEY_MGMT:
7679 /*
7680 * wpa_supplicant will control these internally
7681 */
7682 break;
7683
7684 case IW_AUTH_TKIP_COUNTERMEASURES:
7685 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
7686 if (!crypt || !crypt->ops->get_flags) {
7687 IPW_DEBUG_WARNING("Can't get TKIP countermeasures: "
7688 "crypt not set!\n");
7689 break;
7690 }
7691
7692 param->value = (crypt->ops->get_flags(crypt->priv) &
7693 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
7694
7695 break;
7696
7697 case IW_AUTH_DROP_UNENCRYPTED:
7698 param->value = ieee->drop_unencrypted;
7699 break;
7700
7701 case IW_AUTH_80211_AUTH_ALG:
7702 param->value = priv->ieee->sec.auth_mode;
7703 break;
7704
7705 case IW_AUTH_WPA_ENABLED:
7706 param->value = ieee->wpa_enabled;
7707 break;
7708
7709 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7710 param->value = ieee->ieee802_1x;
7711 break;
7712
7713 case IW_AUTH_ROAMING_CONTROL:
7714 case IW_AUTH_PRIVACY_INVOKED:
7715 param->value = ieee->privacy_invoked;
7716 break;
7717
7718 default:
7719 return -EOPNOTSUPP;
7720 }
7721 return 0;
7722}
7723
7724/* SIOCSIWENCODEEXT */
7725static int ipw2100_wx_set_encodeext(struct net_device *dev,
7726 struct iw_request_info *info,
7727 union iwreq_data *wrqu, char *extra)
7728{
7729 struct ipw2100_priv *priv = libipw_priv(dev);
7730 return libipw_wx_set_encodeext(priv->ieee, info, wrqu, extra);
7731}
7732
7733/* SIOCGIWENCODEEXT */
7734static int ipw2100_wx_get_encodeext(struct net_device *dev,
7735 struct iw_request_info *info,
7736 union iwreq_data *wrqu, char *extra)
7737{
7738 struct ipw2100_priv *priv = libipw_priv(dev);
7739 return libipw_wx_get_encodeext(priv->ieee, info, wrqu, extra);
7740}
7741
7742/* SIOCSIWMLME */
7743static int ipw2100_wx_set_mlme(struct net_device *dev,
7744 struct iw_request_info *info,
7745 union iwreq_data *wrqu, char *extra)
7746{
7747 struct ipw2100_priv *priv = libipw_priv(dev);
7748 struct iw_mlme *mlme = (struct iw_mlme *)extra;
7749
7750 switch (mlme->cmd) {
7751 case IW_MLME_DEAUTH:
7752 // silently ignore
7753 break;
7754
7755 case IW_MLME_DISASSOC:
7756 ipw2100_disassociate_bssid(priv);
7757 break;
7758
7759 default:
7760 return -EOPNOTSUPP;
7761 }
7762 return 0;
7763}
7764
7765/*
7766 *
7767 * IWPRIV handlers
7768 *
7769 */
7770#ifdef CONFIG_IPW2100_MONITOR
7771static int ipw2100_wx_set_promisc(struct net_device *dev,
7772 struct iw_request_info *info,
7773 union iwreq_data *wrqu, char *extra)
7774{
7775 struct ipw2100_priv *priv = libipw_priv(dev);
7776 int *parms = (int *)extra;
7777 int enable = (parms[0] > 0);
7778 int err = 0;
7779
7780 mutex_lock(&priv->action_mutex);
7781 if (!(priv->status & STATUS_INITIALIZED)) {
7782 err = -EIO;
7783 goto done;
7784 }
7785
7786 if (enable) {
7787 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
7788 err = ipw2100_set_channel(priv, parms[1], 0);
7789 goto done;
7790 }
7791 priv->channel = parms[1];
7792 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
7793 } else {
7794 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
7795 err = ipw2100_switch_mode(priv, priv->last_mode);
7796 }
7797 done:
7798 mutex_unlock(&priv->action_mutex);
7799 return err;
7800}
7801
7802static int ipw2100_wx_reset(struct net_device *dev,
7803 struct iw_request_info *info,
7804 union iwreq_data *wrqu, char *extra)
7805{
7806 struct ipw2100_priv *priv = libipw_priv(dev);
7807 if (priv->status & STATUS_INITIALIZED)
7808 schedule_reset(priv);
7809 return 0;
7810}
7811
7812#endif
7813
7814static int ipw2100_wx_set_powermode(struct net_device *dev,
7815 struct iw_request_info *info,
7816 union iwreq_data *wrqu, char *extra)
7817{
7818 struct ipw2100_priv *priv = libipw_priv(dev);
7819 int err = 0, mode = *(int *)extra;
7820
7821 mutex_lock(&priv->action_mutex);
7822 if (!(priv->status & STATUS_INITIALIZED)) {
7823 err = -EIO;
7824 goto done;
7825 }
7826
7827 if ((mode < 0) || (mode > POWER_MODES))
7828 mode = IPW_POWER_AUTO;
7829
7830 if (IPW_POWER_LEVEL(priv->power_mode) != mode)
7831 err = ipw2100_set_power_mode(priv, mode);
7832 done:
7833 mutex_unlock(&priv->action_mutex);
7834 return err;
7835}
7836
7837#define MAX_POWER_STRING 80
7838static int ipw2100_wx_get_powermode(struct net_device *dev,
7839 struct iw_request_info *info,
7840 union iwreq_data *wrqu, char *extra)
7841{
7842 /*
7843 * This can be called at any time. No action lock required
7844 */
7845
7846 struct ipw2100_priv *priv = libipw_priv(dev);
7847 int level = IPW_POWER_LEVEL(priv->power_mode);
7848 s32 timeout, period;
7849
7850 if (!(priv->power_mode & IPW_POWER_ENABLED)) {
7851 snprintf(extra, MAX_POWER_STRING,
7852 "Power save level: %d (Off)", level);
7853 } else {
7854 switch (level) {
7855 case IPW_POWER_MODE_CAM:
7856 snprintf(extra, MAX_POWER_STRING,
7857 "Power save level: %d (None)", level);
7858 break;
7859 case IPW_POWER_AUTO:
7860 snprintf(extra, MAX_POWER_STRING,
7861 "Power save level: %d (Auto)", level);
7862 break;
7863 default:
7864 timeout = timeout_duration[level - 1] / 1000;
7865 period = period_duration[level - 1] / 1000;
7866 snprintf(extra, MAX_POWER_STRING,
7867 "Power save level: %d "
7868 "(Timeout %dms, Period %dms)",
7869 level, timeout, period);
7870 }
7871 }
7872
7873 wrqu->data.length = strlen(extra) + 1;
7874
7875 return 0;
7876}
7877
7878static int ipw2100_wx_set_preamble(struct net_device *dev,
7879 struct iw_request_info *info,
7880 union iwreq_data *wrqu, char *extra)
7881{
7882 struct ipw2100_priv *priv = libipw_priv(dev);
7883 int err, mode = *(int *)extra;
7884
7885 mutex_lock(&priv->action_mutex);
7886 if (!(priv->status & STATUS_INITIALIZED)) {
7887 err = -EIO;
7888 goto done;
7889 }
7890
7891 if (mode == 1)
7892 priv->config |= CFG_LONG_PREAMBLE;
7893 else if (mode == 0)
7894 priv->config &= ~CFG_LONG_PREAMBLE;
7895 else {
7896 err = -EINVAL;
7897 goto done;
7898 }
7899
7900 err = ipw2100_system_config(priv, 0);
7901
7902 done:
7903 mutex_unlock(&priv->action_mutex);
7904 return err;
7905}
7906
7907static int ipw2100_wx_get_preamble(struct net_device *dev,
7908 struct iw_request_info *info,
7909 union iwreq_data *wrqu, char *extra)
7910{
7911 /*
7912 * This can be called at any time. No action lock required
7913 */
7914
7915 struct ipw2100_priv *priv = libipw_priv(dev);
7916
7917 if (priv->config & CFG_LONG_PREAMBLE)
7918 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
7919 else
7920 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
7921
7922 return 0;
7923}
7924
7925#ifdef CONFIG_IPW2100_MONITOR
7926static int ipw2100_wx_set_crc_check(struct net_device *dev,
7927 struct iw_request_info *info,
7928 union iwreq_data *wrqu, char *extra)
7929{
7930 struct ipw2100_priv *priv = libipw_priv(dev);
7931 int err, mode = *(int *)extra;
7932
7933 mutex_lock(&priv->action_mutex);
7934 if (!(priv->status & STATUS_INITIALIZED)) {
7935 err = -EIO;
7936 goto done;
7937 }
7938
7939 if (mode == 1)
7940 priv->config |= CFG_CRC_CHECK;
7941 else if (mode == 0)
7942 priv->config &= ~CFG_CRC_CHECK;
7943 else {
7944 err = -EINVAL;
7945 goto done;
7946 }
7947 err = 0;
7948
7949 done:
7950 mutex_unlock(&priv->action_mutex);
7951 return err;
7952}
7953
7954static int ipw2100_wx_get_crc_check(struct net_device *dev,
7955 struct iw_request_info *info,
7956 union iwreq_data *wrqu, char *extra)
7957{
7958 /*
7959 * This can be called at any time. No action lock required
7960 */
7961
7962 struct ipw2100_priv *priv = libipw_priv(dev);
7963
7964 if (priv->config & CFG_CRC_CHECK)
7965 snprintf(wrqu->name, IFNAMSIZ, "CRC checked (1)");
7966 else
7967 snprintf(wrqu->name, IFNAMSIZ, "CRC ignored (0)");
7968
7969 return 0;
7970}
7971#endif /* CONFIG_IPW2100_MONITOR */
7972
7973static iw_handler ipw2100_wx_handlers[] = {
7974 IW_HANDLER(SIOCGIWNAME, ipw2100_wx_get_name),
7975 IW_HANDLER(SIOCSIWFREQ, ipw2100_wx_set_freq),
7976 IW_HANDLER(SIOCGIWFREQ, ipw2100_wx_get_freq),
7977 IW_HANDLER(SIOCSIWMODE, ipw2100_wx_set_mode),
7978 IW_HANDLER(SIOCGIWMODE, ipw2100_wx_get_mode),
7979 IW_HANDLER(SIOCGIWRANGE, ipw2100_wx_get_range),
7980 IW_HANDLER(SIOCSIWAP, ipw2100_wx_set_wap),
7981 IW_HANDLER(SIOCGIWAP, ipw2100_wx_get_wap),
7982 IW_HANDLER(SIOCSIWMLME, ipw2100_wx_set_mlme),
7983 IW_HANDLER(SIOCSIWSCAN, ipw2100_wx_set_scan),
7984 IW_HANDLER(SIOCGIWSCAN, ipw2100_wx_get_scan),
7985 IW_HANDLER(SIOCSIWESSID, ipw2100_wx_set_essid),
7986 IW_HANDLER(SIOCGIWESSID, ipw2100_wx_get_essid),
7987 IW_HANDLER(SIOCSIWNICKN, ipw2100_wx_set_nick),
7988 IW_HANDLER(SIOCGIWNICKN, ipw2100_wx_get_nick),
7989 IW_HANDLER(SIOCSIWRATE, ipw2100_wx_set_rate),
7990 IW_HANDLER(SIOCGIWRATE, ipw2100_wx_get_rate),
7991 IW_HANDLER(SIOCSIWRTS, ipw2100_wx_set_rts),
7992 IW_HANDLER(SIOCGIWRTS, ipw2100_wx_get_rts),
7993 IW_HANDLER(SIOCSIWFRAG, ipw2100_wx_set_frag),
7994 IW_HANDLER(SIOCGIWFRAG, ipw2100_wx_get_frag),
7995 IW_HANDLER(SIOCSIWTXPOW, ipw2100_wx_set_txpow),
7996 IW_HANDLER(SIOCGIWTXPOW, ipw2100_wx_get_txpow),
7997 IW_HANDLER(SIOCSIWRETRY, ipw2100_wx_set_retry),
7998 IW_HANDLER(SIOCGIWRETRY, ipw2100_wx_get_retry),
7999 IW_HANDLER(SIOCSIWENCODE, ipw2100_wx_set_encode),
8000 IW_HANDLER(SIOCGIWENCODE, ipw2100_wx_get_encode),
8001 IW_HANDLER(SIOCSIWPOWER, ipw2100_wx_set_power),
8002 IW_HANDLER(SIOCGIWPOWER, ipw2100_wx_get_power),
8003 IW_HANDLER(SIOCSIWGENIE, ipw2100_wx_set_genie),
8004 IW_HANDLER(SIOCGIWGENIE, ipw2100_wx_get_genie),
8005 IW_HANDLER(SIOCSIWAUTH, ipw2100_wx_set_auth),
8006 IW_HANDLER(SIOCGIWAUTH, ipw2100_wx_get_auth),
8007 IW_HANDLER(SIOCSIWENCODEEXT, ipw2100_wx_set_encodeext),
8008 IW_HANDLER(SIOCGIWENCODEEXT, ipw2100_wx_get_encodeext),
8009};
8010
8011#define IPW2100_PRIV_SET_MONITOR SIOCIWFIRSTPRIV
8012#define IPW2100_PRIV_RESET SIOCIWFIRSTPRIV+1
8013#define IPW2100_PRIV_SET_POWER SIOCIWFIRSTPRIV+2
8014#define IPW2100_PRIV_GET_POWER SIOCIWFIRSTPRIV+3
8015#define IPW2100_PRIV_SET_LONGPREAMBLE SIOCIWFIRSTPRIV+4
8016#define IPW2100_PRIV_GET_LONGPREAMBLE SIOCIWFIRSTPRIV+5
8017#define IPW2100_PRIV_SET_CRC_CHECK SIOCIWFIRSTPRIV+6
8018#define IPW2100_PRIV_GET_CRC_CHECK SIOCIWFIRSTPRIV+7
8019
8020static const struct iw_priv_args ipw2100_private_args[] = {
8021
8022#ifdef CONFIG_IPW2100_MONITOR
8023 {
8024 IPW2100_PRIV_SET_MONITOR,
8025 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
8026 {
8027 IPW2100_PRIV_RESET,
8028 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
8029#endif /* CONFIG_IPW2100_MONITOR */
8030
8031 {
8032 IPW2100_PRIV_SET_POWER,
8033 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_power"},
8034 {
8035 IPW2100_PRIV_GET_POWER,
8036 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_POWER_STRING,
8037 "get_power"},
8038 {
8039 IPW2100_PRIV_SET_LONGPREAMBLE,
8040 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"},
8041 {
8042 IPW2100_PRIV_GET_LONGPREAMBLE,
8043 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_preamble"},
8044#ifdef CONFIG_IPW2100_MONITOR
8045 {
8046 IPW2100_PRIV_SET_CRC_CHECK,
8047 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_crc_check"},
8048 {
8049 IPW2100_PRIV_GET_CRC_CHECK,
8050 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_crc_check"},
8051#endif /* CONFIG_IPW2100_MONITOR */
8052};
8053
8054static iw_handler ipw2100_private_handler[] = {
8055#ifdef CONFIG_IPW2100_MONITOR
8056 ipw2100_wx_set_promisc,
8057 ipw2100_wx_reset,
8058#else /* CONFIG_IPW2100_MONITOR */
8059 NULL,
8060 NULL,
8061#endif /* CONFIG_IPW2100_MONITOR */
8062 ipw2100_wx_set_powermode,
8063 ipw2100_wx_get_powermode,
8064 ipw2100_wx_set_preamble,
8065 ipw2100_wx_get_preamble,
8066#ifdef CONFIG_IPW2100_MONITOR
8067 ipw2100_wx_set_crc_check,
8068 ipw2100_wx_get_crc_check,
8069#else /* CONFIG_IPW2100_MONITOR */
8070 NULL,
8071 NULL,
8072#endif /* CONFIG_IPW2100_MONITOR */
8073};
8074
8075/*
8076 * Get wireless statistics.
8077 * Called by /proc/net/wireless
8078 * Also called by SIOCGIWSTATS
8079 */
8080static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev)
8081{
8082 enum {
8083 POOR = 30,
8084 FAIR = 60,
8085 GOOD = 80,
8086 VERY_GOOD = 90,
8087 EXCELLENT = 95,
8088 PERFECT = 100
8089 };
8090 int rssi_qual;
8091 int tx_qual;
8092 int beacon_qual;
8093 int quality;
8094
8095 struct ipw2100_priv *priv = libipw_priv(dev);
8096 struct iw_statistics *wstats;
8097 u32 rssi, tx_retries, missed_beacons, tx_failures;
8098 u32 ord_len = sizeof(u32);
8099
8100 if (!priv)
8101 return (struct iw_statistics *)NULL;
8102
8103 wstats = &priv->wstats;
8104
8105 /* if hw is disabled, then ipw2100_get_ordinal() can't be called.
8106 * ipw2100_wx_wireless_stats seems to be called before fw is
8107 * initialized. STATUS_ASSOCIATED will only be set if the hw is up
8108 * and associated; if not associcated, the values are all meaningless
8109 * anyway, so set them all to NULL and INVALID */
8110 if (!(priv->status & STATUS_ASSOCIATED)) {
8111 wstats->miss.beacon = 0;
8112 wstats->discard.retries = 0;
8113 wstats->qual.qual = 0;
8114 wstats->qual.level = 0;
8115 wstats->qual.noise = 0;
8116 wstats->qual.updated = 7;
8117 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
8118 IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
8119 return wstats;
8120 }
8121
8122 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_MISSED_BCNS,
8123 &missed_beacons, &ord_len))
8124 goto fail_get_ordinal;
8125
8126 /* If we don't have a connection the quality and level is 0 */
8127 if (!(priv->status & STATUS_ASSOCIATED)) {
8128 wstats->qual.qual = 0;
8129 wstats->qual.level = 0;
8130 } else {
8131 if (ipw2100_get_ordinal(priv, IPW_ORD_RSSI_AVG_CURR,
8132 &rssi, &ord_len))
8133 goto fail_get_ordinal;
8134 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8135 if (rssi < 10)
8136 rssi_qual = rssi * POOR / 10;
8137 else if (rssi < 15)
8138 rssi_qual = (rssi - 10) * (FAIR - POOR) / 5 + POOR;
8139 else if (rssi < 20)
8140 rssi_qual = (rssi - 15) * (GOOD - FAIR) / 5 + FAIR;
8141 else if (rssi < 30)
8142 rssi_qual = (rssi - 20) * (VERY_GOOD - GOOD) /
8143 10 + GOOD;
8144 else
8145 rssi_qual = (rssi - 30) * (PERFECT - VERY_GOOD) /
8146 10 + VERY_GOOD;
8147
8148 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_RETRIES,
8149 &tx_retries, &ord_len))
8150 goto fail_get_ordinal;
8151
8152 if (tx_retries > 75)
8153 tx_qual = (90 - tx_retries) * POOR / 15;
8154 else if (tx_retries > 70)
8155 tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR;
8156 else if (tx_retries > 65)
8157 tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR;
8158 else if (tx_retries > 50)
8159 tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) /
8160 15 + GOOD;
8161 else
8162 tx_qual = (50 - tx_retries) *
8163 (PERFECT - VERY_GOOD) / 50 + VERY_GOOD;
8164
8165 if (missed_beacons > 50)
8166 beacon_qual = (60 - missed_beacons) * POOR / 10;
8167 else if (missed_beacons > 40)
8168 beacon_qual = (50 - missed_beacons) * (FAIR - POOR) /
8169 10 + POOR;
8170 else if (missed_beacons > 32)
8171 beacon_qual = (40 - missed_beacons) * (GOOD - FAIR) /
8172 18 + FAIR;
8173 else if (missed_beacons > 20)
8174 beacon_qual = (32 - missed_beacons) *
8175 (VERY_GOOD - GOOD) / 20 + GOOD;
8176 else
8177 beacon_qual = (20 - missed_beacons) *
8178 (PERFECT - VERY_GOOD) / 20 + VERY_GOOD;
8179
8180 quality = min(tx_qual, rssi_qual);
8181 quality = min(beacon_qual, quality);
8182
8183#ifdef CONFIG_IPW2100_DEBUG
8184 if (beacon_qual == quality)
8185 IPW_DEBUG_WX("Quality clamped by Missed Beacons\n");
8186 else if (tx_qual == quality)
8187 IPW_DEBUG_WX("Quality clamped by Tx Retries\n");
8188 else if (quality != 100)
8189 IPW_DEBUG_WX("Quality clamped by Signal Strength\n");
8190 else
8191 IPW_DEBUG_WX("Quality not clamped.\n");
8192#endif
8193
8194 wstats->qual.qual = quality;
8195 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8196 }
8197
8198 wstats->qual.noise = 0;
8199 wstats->qual.updated = 7;
8200 wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
8201
8202 /* FIXME: this is percent and not a # */
8203 wstats->miss.beacon = missed_beacons;
8204
8205 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURES,
8206 &tx_failures, &ord_len))
8207 goto fail_get_ordinal;
8208 wstats->discard.retries = tx_failures;
8209
8210 return wstats;
8211
8212 fail_get_ordinal:
8213 IPW_DEBUG_WX("failed querying ordinals.\n");
8214
8215 return (struct iw_statistics *)NULL;
8216}
8217
8218static const struct iw_handler_def ipw2100_wx_handler_def = {
8219 .standard = ipw2100_wx_handlers,
8220 .num_standard = ARRAY_SIZE(ipw2100_wx_handlers),
8221 .num_private = ARRAY_SIZE(ipw2100_private_handler),
8222 .num_private_args = ARRAY_SIZE(ipw2100_private_args),
8223 .private = (iw_handler *) ipw2100_private_handler,
8224 .private_args = (struct iw_priv_args *)ipw2100_private_args,
8225 .get_wireless_stats = ipw2100_wx_wireless_stats,
8226};
8227
8228static void ipw2100_wx_event_work(struct work_struct *work)
8229{
8230 struct ipw2100_priv *priv =
8231 container_of(work, struct ipw2100_priv, wx_event_work.work);
8232 union iwreq_data wrqu;
8233 unsigned int len = ETH_ALEN;
8234
8235 if (priv->status & STATUS_STOPPING)
8236 return;
8237
8238 mutex_lock(&priv->action_mutex);
8239
8240 IPW_DEBUG_WX("enter\n");
8241
8242 mutex_unlock(&priv->action_mutex);
8243
8244 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
8245
8246 /* Fetch BSSID from the hardware */
8247 if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) ||
8248 priv->status & STATUS_RF_KILL_MASK ||
8249 ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
8250 &priv->bssid, &len)) {
8251 eth_zero_addr(wrqu.ap_addr.sa_data);
8252 } else {
8253 /* We now have the BSSID, so can finish setting to the full
8254 * associated state */
8255 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
8256 memcpy(priv->ieee->bssid, priv->bssid, ETH_ALEN);
8257 priv->status &= ~STATUS_ASSOCIATING;
8258 priv->status |= STATUS_ASSOCIATED;
8259 netif_carrier_on(priv->net_dev);
8260 netif_wake_queue(priv->net_dev);
8261 }
8262
8263 if (!(priv->status & STATUS_ASSOCIATED)) {
8264 IPW_DEBUG_WX("Configuring ESSID\n");
8265 mutex_lock(&priv->action_mutex);
8266 /* This is a disassociation event, so kick the firmware to
8267 * look for another AP */
8268 if (priv->config & CFG_STATIC_ESSID)
8269 ipw2100_set_essid(priv, priv->essid, priv->essid_len,
8270 0);
8271 else
8272 ipw2100_set_essid(priv, NULL, 0, 0);
8273 mutex_unlock(&priv->action_mutex);
8274 }
8275
8276 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
8277}
8278
8279#define IPW2100_FW_MAJOR_VERSION 1
8280#define IPW2100_FW_MINOR_VERSION 3
8281
8282#define IPW2100_FW_MINOR(x) ((x & 0xff) >> 8)
8283#define IPW2100_FW_MAJOR(x) (x & 0xff)
8284
8285#define IPW2100_FW_VERSION ((IPW2100_FW_MINOR_VERSION << 8) | \
8286 IPW2100_FW_MAJOR_VERSION)
8287
8288#define IPW2100_FW_PREFIX "ipw2100-" __stringify(IPW2100_FW_MAJOR_VERSION) \
8289"." __stringify(IPW2100_FW_MINOR_VERSION)
8290
8291#define IPW2100_FW_NAME(x) IPW2100_FW_PREFIX "" x ".fw"
8292
8293/*
8294
8295BINARY FIRMWARE HEADER FORMAT
8296
8297offset length desc
82980 2 version
82992 2 mode == 0:BSS,1:IBSS,2:MONITOR
83004 4 fw_len
83018 4 uc_len
8302C fw_len firmware data
830312 + fw_len uc_len microcode data
8304
8305*/
8306
8307struct ipw2100_fw_header {
8308 short version;
8309 short mode;
8310 unsigned int fw_size;
8311 unsigned int uc_size;
8312} __packed;
8313
8314static int ipw2100_mod_firmware_load(struct ipw2100_fw *fw)
8315{
8316 struct ipw2100_fw_header *h =
8317 (struct ipw2100_fw_header *)fw->fw_entry->data;
8318
8319 if (IPW2100_FW_MAJOR(h->version) != IPW2100_FW_MAJOR_VERSION) {
8320 printk(KERN_WARNING DRV_NAME ": Firmware image not compatible "
8321 "(detected version id of %u). "
8322 "See Documentation/networking/device_drivers/wifi/intel/ipw2100.rst\n",
8323 h->version);
8324 return 1;
8325 }
8326
8327 fw->version = h->version;
8328 fw->fw.data = fw->fw_entry->data + sizeof(struct ipw2100_fw_header);
8329 fw->fw.size = h->fw_size;
8330 fw->uc.data = fw->fw.data + h->fw_size;
8331 fw->uc.size = h->uc_size;
8332
8333 return 0;
8334}
8335
8336static int ipw2100_get_firmware(struct ipw2100_priv *priv,
8337 struct ipw2100_fw *fw)
8338{
8339 char *fw_name;
8340 int rc;
8341
8342 IPW_DEBUG_INFO("%s: Using hotplug firmware load.\n",
8343 priv->net_dev->name);
8344
8345 switch (priv->ieee->iw_mode) {
8346 case IW_MODE_ADHOC:
8347 fw_name = IPW2100_FW_NAME("-i");
8348 break;
8349#ifdef CONFIG_IPW2100_MONITOR
8350 case IW_MODE_MONITOR:
8351 fw_name = IPW2100_FW_NAME("-p");
8352 break;
8353#endif
8354 case IW_MODE_INFRA:
8355 default:
8356 fw_name = IPW2100_FW_NAME("");
8357 break;
8358 }
8359
8360 rc = request_firmware(&fw->fw_entry, fw_name, &priv->pci_dev->dev);
8361
8362 if (rc < 0) {
8363 printk(KERN_ERR DRV_NAME ": "
8364 "%s: Firmware '%s' not available or load failed.\n",
8365 priv->net_dev->name, fw_name);
8366 return rc;
8367 }
8368 IPW_DEBUG_INFO("firmware data %p size %zd\n", fw->fw_entry->data,
8369 fw->fw_entry->size);
8370
8371 ipw2100_mod_firmware_load(fw);
8372
8373 return 0;
8374}
8375
8376MODULE_FIRMWARE(IPW2100_FW_NAME("-i"));
8377#ifdef CONFIG_IPW2100_MONITOR
8378MODULE_FIRMWARE(IPW2100_FW_NAME("-p"));
8379#endif
8380MODULE_FIRMWARE(IPW2100_FW_NAME(""));
8381
8382static void ipw2100_release_firmware(struct ipw2100_priv *priv,
8383 struct ipw2100_fw *fw)
8384{
8385 fw->version = 0;
8386 release_firmware(fw->fw_entry);
8387 fw->fw_entry = NULL;
8388}
8389
8390static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
8391 size_t max)
8392{
8393 char ver[MAX_FW_VERSION_LEN];
8394 u32 len = MAX_FW_VERSION_LEN;
8395 u32 tmp;
8396 int i;
8397 /* firmware version is an ascii string (max len of 14) */
8398 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_FW_VER_NUM, ver, &len))
8399 return -EIO;
8400 tmp = max;
8401 if (len >= max)
8402 len = max - 1;
8403 for (i = 0; i < len; i++)
8404 buf[i] = ver[i];
8405 buf[i] = '\0';
8406 return tmp;
8407}
8408
8409static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
8410 size_t max)
8411{
8412 u32 ver;
8413 u32 len = sizeof(ver);
8414 /* microcode version is a 32 bit integer */
8415 if (ipw2100_get_ordinal(priv, IPW_ORD_UCODE_VERSION, &ver, &len))
8416 return -EIO;
8417 return snprintf(buf, max, "%08X", ver);
8418}
8419
8420/*
8421 * On exit, the firmware will have been freed from the fw list
8422 */
8423static int ipw2100_fw_download(struct ipw2100_priv *priv, struct ipw2100_fw *fw)
8424{
8425 /* firmware is constructed of N contiguous entries, each entry is
8426 * structured as:
8427 *
8428 * offset sie desc
8429 * 0 4 address to write to
8430 * 4 2 length of data run
8431 * 6 length data
8432 */
8433 unsigned int addr;
8434 unsigned short len;
8435
8436 const unsigned char *firmware_data = fw->fw.data;
8437 unsigned int firmware_data_left = fw->fw.size;
8438
8439 while (firmware_data_left > 0) {
8440 addr = *(u32 *) (firmware_data);
8441 firmware_data += 4;
8442 firmware_data_left -= 4;
8443
8444 len = *(u16 *) (firmware_data);
8445 firmware_data += 2;
8446 firmware_data_left -= 2;
8447
8448 if (len > 32) {
8449 printk(KERN_ERR DRV_NAME ": "
8450 "Invalid firmware run-length of %d bytes\n",
8451 len);
8452 return -EINVAL;
8453 }
8454
8455 write_nic_memory(priv->net_dev, addr, len, firmware_data);
8456 firmware_data += len;
8457 firmware_data_left -= len;
8458 }
8459
8460 return 0;
8461}
8462
8463struct symbol_alive_response {
8464 u8 cmd_id;
8465 u8 seq_num;
8466 u8 ucode_rev;
8467 u8 eeprom_valid;
8468 u16 valid_flags;
8469 u8 IEEE_addr[6];
8470 u16 flags;
8471 u16 pcb_rev;
8472 u16 clock_settle_time; // 1us LSB
8473 u16 powerup_settle_time; // 1us LSB
8474 u16 hop_settle_time; // 1us LSB
8475 u8 date[3]; // month, day, year
8476 u8 time[2]; // hours, minutes
8477 u8 ucode_valid;
8478};
8479
8480static int ipw2100_ucode_download(struct ipw2100_priv *priv,
8481 struct ipw2100_fw *fw)
8482{
8483 struct net_device *dev = priv->net_dev;
8484 const unsigned char *microcode_data = fw->uc.data;
8485 unsigned int microcode_data_left = fw->uc.size;
8486 void __iomem *reg = priv->ioaddr;
8487
8488 struct symbol_alive_response response;
8489 int i, j;
8490 u8 data;
8491
8492 /* Symbol control */
8493 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8494 readl(reg);
8495 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8496 readl(reg);
8497
8498 /* HW config */
8499 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */
8500 readl(reg);
8501 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */
8502 readl(reg);
8503
8504 /* EN_CS_ACCESS bit to reset control store pointer */
8505 write_nic_byte(dev, 0x210000, 0x40);
8506 readl(reg);
8507 write_nic_byte(dev, 0x210000, 0x0);
8508 readl(reg);
8509 write_nic_byte(dev, 0x210000, 0x40);
8510 readl(reg);
8511
8512 /* copy microcode from buffer into Symbol */
8513
8514 while (microcode_data_left > 0) {
8515 write_nic_byte(dev, 0x210010, *microcode_data++);
8516 write_nic_byte(dev, 0x210010, *microcode_data++);
8517 microcode_data_left -= 2;
8518 }
8519
8520 /* EN_CS_ACCESS bit to reset the control store pointer */
8521 write_nic_byte(dev, 0x210000, 0x0);
8522 readl(reg);
8523
8524 /* Enable System (Reg 0)
8525 * first enable causes garbage in RX FIFO */
8526 write_nic_byte(dev, 0x210000, 0x0);
8527 readl(reg);
8528 write_nic_byte(dev, 0x210000, 0x80);
8529 readl(reg);
8530
8531 /* Reset External Baseband Reg */
8532 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8533 readl(reg);
8534 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8535 readl(reg);
8536
8537 /* HW Config (Reg 5) */
8538 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16
8539 readl(reg);
8540 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16
8541 readl(reg);
8542
8543 /* Enable System (Reg 0)
8544 * second enable should be OK */
8545 write_nic_byte(dev, 0x210000, 0x00); // clear enable system
8546 readl(reg);
8547 write_nic_byte(dev, 0x210000, 0x80); // set enable system
8548
8549 /* check Symbol is enabled - upped this from 5 as it wasn't always
8550 * catching the update */
8551 for (i = 0; i < 10; i++) {
8552 udelay(10);
8553
8554 /* check Dino is enabled bit */
8555 read_nic_byte(dev, 0x210000, &data);
8556 if (data & 0x1)
8557 break;
8558 }
8559
8560 if (i == 10) {
8561 printk(KERN_ERR DRV_NAME ": %s: Error initializing Symbol\n",
8562 dev->name);
8563 return -EIO;
8564 }
8565
8566 /* Get Symbol alive response */
8567 for (i = 0; i < 30; i++) {
8568 /* Read alive response structure */
8569 for (j = 0;
8570 j < (sizeof(struct symbol_alive_response) >> 1); j++)
8571 read_nic_word(dev, 0x210004, ((u16 *) & response) + j);
8572
8573 if ((response.cmd_id == 1) && (response.ucode_valid == 0x1))
8574 break;
8575 udelay(10);
8576 }
8577
8578 if (i == 30) {
8579 printk(KERN_ERR DRV_NAME
8580 ": %s: No response from Symbol - hw not alive\n",
8581 dev->name);
8582 printk_buf(IPW_DL_ERROR, (u8 *) & response, sizeof(response));
8583 return -EIO;
8584 }
8585
8586 return 0;
8587}