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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: %c %s ", \
205 in_interrupt() ? 'I' : 'U', __func__); \
206 printk(message); \
207 } \
208} while (0)
209#else
210#define IPW_DEBUG(level, message...) do {} while (0)
211#endif /* CONFIG_IPW2100_DEBUG */
212
213#ifdef CONFIG_IPW2100_DEBUG
214static const char *command_types[] = {
215 "undefined",
216 "unused", /* HOST_ATTENTION */
217 "HOST_COMPLETE",
218 "unused", /* SLEEP */
219 "unused", /* HOST_POWER_DOWN */
220 "unused",
221 "SYSTEM_CONFIG",
222 "unused", /* SET_IMR */
223 "SSID",
224 "MANDATORY_BSSID",
225 "AUTHENTICATION_TYPE",
226 "ADAPTER_ADDRESS",
227 "PORT_TYPE",
228 "INTERNATIONAL_MODE",
229 "CHANNEL",
230 "RTS_THRESHOLD",
231 "FRAG_THRESHOLD",
232 "POWER_MODE",
233 "TX_RATES",
234 "BASIC_TX_RATES",
235 "WEP_KEY_INFO",
236 "unused",
237 "unused",
238 "unused",
239 "unused",
240 "WEP_KEY_INDEX",
241 "WEP_FLAGS",
242 "ADD_MULTICAST",
243 "CLEAR_ALL_MULTICAST",
244 "BEACON_INTERVAL",
245 "ATIM_WINDOW",
246 "CLEAR_STATISTICS",
247 "undefined",
248 "undefined",
249 "undefined",
250 "undefined",
251 "TX_POWER_INDEX",
252 "undefined",
253 "undefined",
254 "undefined",
255 "undefined",
256 "undefined",
257 "undefined",
258 "BROADCAST_SCAN",
259 "CARD_DISABLE",
260 "PREFERRED_BSSID",
261 "SET_SCAN_OPTIONS",
262 "SCAN_DWELL_TIME",
263 "SWEEP_TABLE",
264 "AP_OR_STATION_TABLE",
265 "GROUP_ORDINALS",
266 "SHORT_RETRY_LIMIT",
267 "LONG_RETRY_LIMIT",
268 "unused", /* SAVE_CALIBRATION */
269 "unused", /* RESTORE_CALIBRATION */
270 "undefined",
271 "undefined",
272 "undefined",
273 "HOST_PRE_POWER_DOWN",
274 "unused", /* HOST_INTERRUPT_COALESCING */
275 "undefined",
276 "CARD_DISABLE_PHY_OFF",
277 "MSDU_TX_RATES",
278 "undefined",
279 "SET_STATION_STAT_BITS",
280 "CLEAR_STATIONS_STAT_BITS",
281 "LEAP_ROGUE_MODE",
282 "SET_SECURITY_INFORMATION",
283 "DISASSOCIATION_BSSID",
284 "SET_WPA_ASS_IE"
285};
286#endif
287
288static const long ipw2100_frequencies[] = {
289 2412, 2417, 2422, 2427,
290 2432, 2437, 2442, 2447,
291 2452, 2457, 2462, 2467,
292 2472, 2484
293};
294
295#define FREQ_COUNT ARRAY_SIZE(ipw2100_frequencies)
296
297static struct ieee80211_rate ipw2100_bg_rates[] = {
298 { .bitrate = 10 },
299 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
300 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
301 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
302};
303
304#define RATE_COUNT ARRAY_SIZE(ipw2100_bg_rates)
305
306/* Pre-decl until we get the code solid and then we can clean it up */
307static void ipw2100_tx_send_commands(struct ipw2100_priv *priv);
308static void ipw2100_tx_send_data(struct ipw2100_priv *priv);
309static int ipw2100_adapter_setup(struct ipw2100_priv *priv);
310
311static void ipw2100_queues_initialize(struct ipw2100_priv *priv);
312static void ipw2100_queues_free(struct ipw2100_priv *priv);
313static int ipw2100_queues_allocate(struct ipw2100_priv *priv);
314
315static int ipw2100_fw_download(struct ipw2100_priv *priv,
316 struct ipw2100_fw *fw);
317static int ipw2100_get_firmware(struct ipw2100_priv *priv,
318 struct ipw2100_fw *fw);
319static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
320 size_t max);
321static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
322 size_t max);
323static void ipw2100_release_firmware(struct ipw2100_priv *priv,
324 struct ipw2100_fw *fw);
325static int ipw2100_ucode_download(struct ipw2100_priv *priv,
326 struct ipw2100_fw *fw);
327static void ipw2100_wx_event_work(struct work_struct *work);
328static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev);
329static const struct iw_handler_def ipw2100_wx_handler_def;
330
331static inline void read_register(struct net_device *dev, u32 reg, u32 * val)
332{
333 struct ipw2100_priv *priv = libipw_priv(dev);
334
335 *val = ioread32(priv->ioaddr + reg);
336 IPW_DEBUG_IO("r: 0x%08X => 0x%08X\n", reg, *val);
337}
338
339static inline void write_register(struct net_device *dev, u32 reg, u32 val)
340{
341 struct ipw2100_priv *priv = libipw_priv(dev);
342
343 iowrite32(val, priv->ioaddr + reg);
344 IPW_DEBUG_IO("w: 0x%08X <= 0x%08X\n", reg, val);
345}
346
347static inline void read_register_word(struct net_device *dev, u32 reg,
348 u16 * val)
349{
350 struct ipw2100_priv *priv = libipw_priv(dev);
351
352 *val = ioread16(priv->ioaddr + reg);
353 IPW_DEBUG_IO("r: 0x%08X => %04X\n", reg, *val);
354}
355
356static inline void read_register_byte(struct net_device *dev, u32 reg, u8 * val)
357{
358 struct ipw2100_priv *priv = libipw_priv(dev);
359
360 *val = ioread8(priv->ioaddr + reg);
361 IPW_DEBUG_IO("r: 0x%08X => %02X\n", reg, *val);
362}
363
364static inline void write_register_word(struct net_device *dev, u32 reg, u16 val)
365{
366 struct ipw2100_priv *priv = libipw_priv(dev);
367
368 iowrite16(val, priv->ioaddr + reg);
369 IPW_DEBUG_IO("w: 0x%08X <= %04X\n", reg, val);
370}
371
372static inline void write_register_byte(struct net_device *dev, u32 reg, u8 val)
373{
374 struct ipw2100_priv *priv = libipw_priv(dev);
375
376 iowrite8(val, priv->ioaddr + reg);
377 IPW_DEBUG_IO("w: 0x%08X =< %02X\n", reg, val);
378}
379
380static inline void read_nic_dword(struct net_device *dev, u32 addr, u32 * val)
381{
382 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
383 addr & IPW_REG_INDIRECT_ADDR_MASK);
384 read_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
385}
386
387static inline void write_nic_dword(struct net_device *dev, u32 addr, u32 val)
388{
389 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
390 addr & IPW_REG_INDIRECT_ADDR_MASK);
391 write_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
392}
393
394static inline void read_nic_word(struct net_device *dev, u32 addr, u16 * val)
395{
396 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
397 addr & IPW_REG_INDIRECT_ADDR_MASK);
398 read_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
399}
400
401static inline void write_nic_word(struct net_device *dev, u32 addr, u16 val)
402{
403 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
404 addr & IPW_REG_INDIRECT_ADDR_MASK);
405 write_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
406}
407
408static inline void read_nic_byte(struct net_device *dev, u32 addr, u8 * val)
409{
410 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
411 addr & IPW_REG_INDIRECT_ADDR_MASK);
412 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
413}
414
415static inline void write_nic_byte(struct net_device *dev, u32 addr, u8 val)
416{
417 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
418 addr & IPW_REG_INDIRECT_ADDR_MASK);
419 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
420}
421
422static inline void write_nic_auto_inc_address(struct net_device *dev, u32 addr)
423{
424 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS,
425 addr & IPW_REG_INDIRECT_ADDR_MASK);
426}
427
428static inline void write_nic_dword_auto_inc(struct net_device *dev, u32 val)
429{
430 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, val);
431}
432
433static void write_nic_memory(struct net_device *dev, u32 addr, u32 len,
434 const u8 * buf)
435{
436 u32 aligned_addr;
437 u32 aligned_len;
438 u32 dif_len;
439 u32 i;
440
441 /* read first nibble byte by byte */
442 aligned_addr = addr & (~0x3);
443 dif_len = addr - aligned_addr;
444 if (dif_len) {
445 /* Start reading at aligned_addr + dif_len */
446 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
447 aligned_addr);
448 for (i = dif_len; i < 4; i++, buf++)
449 write_register_byte(dev,
450 IPW_REG_INDIRECT_ACCESS_DATA + i,
451 *buf);
452
453 len -= dif_len;
454 aligned_addr += 4;
455 }
456
457 /* read DWs through autoincrement registers */
458 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
459 aligned_len = len & (~0x3);
460 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
461 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, *(u32 *) buf);
462
463 /* copy the last nibble */
464 dif_len = len - aligned_len;
465 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
466 for (i = 0; i < dif_len; i++, buf++)
467 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i,
468 *buf);
469}
470
471static void read_nic_memory(struct net_device *dev, u32 addr, u32 len,
472 u8 * buf)
473{
474 u32 aligned_addr;
475 u32 aligned_len;
476 u32 dif_len;
477 u32 i;
478
479 /* read first nibble byte by byte */
480 aligned_addr = addr & (~0x3);
481 dif_len = addr - aligned_addr;
482 if (dif_len) {
483 /* Start reading at aligned_addr + dif_len */
484 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
485 aligned_addr);
486 for (i = dif_len; i < 4; i++, buf++)
487 read_register_byte(dev,
488 IPW_REG_INDIRECT_ACCESS_DATA + i,
489 buf);
490
491 len -= dif_len;
492 aligned_addr += 4;
493 }
494
495 /* read DWs through autoincrement registers */
496 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
497 aligned_len = len & (~0x3);
498 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
499 read_register(dev, IPW_REG_AUTOINCREMENT_DATA, (u32 *) buf);
500
501 /* copy the last nibble */
502 dif_len = len - aligned_len;
503 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
504 for (i = 0; i < dif_len; i++, buf++)
505 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i, buf);
506}
507
508static bool ipw2100_hw_is_adapter_in_system(struct net_device *dev)
509{
510 u32 dbg;
511
512 read_register(dev, IPW_REG_DOA_DEBUG_AREA_START, &dbg);
513
514 return dbg == IPW_DATA_DOA_DEBUG_VALUE;
515}
516
517static int ipw2100_get_ordinal(struct ipw2100_priv *priv, u32 ord,
518 void *val, u32 * len)
519{
520 struct ipw2100_ordinals *ordinals = &priv->ordinals;
521 u32 addr;
522 u32 field_info;
523 u16 field_len;
524 u16 field_count;
525 u32 total_length;
526
527 if (ordinals->table1_addr == 0) {
528 printk(KERN_WARNING DRV_NAME ": attempt to use fw ordinals "
529 "before they have been loaded.\n");
530 return -EINVAL;
531 }
532
533 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
534 if (*len < IPW_ORD_TAB_1_ENTRY_SIZE) {
535 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
536
537 printk(KERN_WARNING DRV_NAME
538 ": ordinal buffer length too small, need %zd\n",
539 IPW_ORD_TAB_1_ENTRY_SIZE);
540
541 return -EINVAL;
542 }
543
544 read_nic_dword(priv->net_dev,
545 ordinals->table1_addr + (ord << 2), &addr);
546 read_nic_dword(priv->net_dev, addr, val);
547
548 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
549
550 return 0;
551 }
552
553 if (IS_ORDINAL_TABLE_TWO(ordinals, ord)) {
554
555 ord -= IPW_START_ORD_TAB_2;
556
557 /* get the address of statistic */
558 read_nic_dword(priv->net_dev,
559 ordinals->table2_addr + (ord << 3), &addr);
560
561 /* get the second DW of statistics ;
562 * two 16-bit words - first is length, second is count */
563 read_nic_dword(priv->net_dev,
564 ordinals->table2_addr + (ord << 3) + sizeof(u32),
565 &field_info);
566
567 /* get each entry length */
568 field_len = *((u16 *) & field_info);
569
570 /* get number of entries */
571 field_count = *(((u16 *) & field_info) + 1);
572
573 /* abort if no enough memory */
574 total_length = field_len * field_count;
575 if (total_length > *len) {
576 *len = total_length;
577 return -EINVAL;
578 }
579
580 *len = total_length;
581 if (!total_length)
582 return 0;
583
584 /* read the ordinal data from the SRAM */
585 read_nic_memory(priv->net_dev, addr, total_length, val);
586
587 return 0;
588 }
589
590 printk(KERN_WARNING DRV_NAME ": ordinal %d neither in table 1 nor "
591 "in table 2\n", ord);
592
593 return -EINVAL;
594}
595
596static int ipw2100_set_ordinal(struct ipw2100_priv *priv, u32 ord, u32 * val,
597 u32 * len)
598{
599 struct ipw2100_ordinals *ordinals = &priv->ordinals;
600 u32 addr;
601
602 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
603 if (*len != IPW_ORD_TAB_1_ENTRY_SIZE) {
604 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
605 IPW_DEBUG_INFO("wrong size\n");
606 return -EINVAL;
607 }
608
609 read_nic_dword(priv->net_dev,
610 ordinals->table1_addr + (ord << 2), &addr);
611
612 write_nic_dword(priv->net_dev, addr, *val);
613
614 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
615
616 return 0;
617 }
618
619 IPW_DEBUG_INFO("wrong table\n");
620 if (IS_ORDINAL_TABLE_TWO(ordinals, ord))
621 return -EINVAL;
622
623 return -EINVAL;
624}
625
626static char *snprint_line(char *buf, size_t count,
627 const u8 * data, u32 len, u32 ofs)
628{
629 int out, i, j, l;
630 char c;
631
632 out = scnprintf(buf, count, "%08X", ofs);
633
634 for (l = 0, i = 0; i < 2; i++) {
635 out += scnprintf(buf + out, count - out, " ");
636 for (j = 0; j < 8 && l < len; j++, l++)
637 out += scnprintf(buf + out, count - out, "%02X ",
638 data[(i * 8 + j)]);
639 for (; j < 8; j++)
640 out += scnprintf(buf + out, count - out, " ");
641 }
642
643 out += scnprintf(buf + out, count - out, " ");
644 for (l = 0, i = 0; i < 2; i++) {
645 out += scnprintf(buf + out, count - out, " ");
646 for (j = 0; j < 8 && l < len; j++, l++) {
647 c = data[(i * 8 + j)];
648 if (!isascii(c) || !isprint(c))
649 c = '.';
650
651 out += scnprintf(buf + out, count - out, "%c", c);
652 }
653
654 for (; j < 8; j++)
655 out += scnprintf(buf + out, count - out, " ");
656 }
657
658 return buf;
659}
660
661static void printk_buf(int level, const u8 * data, u32 len)
662{
663 char line[81];
664 u32 ofs = 0;
665 if (!(ipw2100_debug_level & level))
666 return;
667
668 while (len) {
669 printk(KERN_DEBUG "%s\n",
670 snprint_line(line, sizeof(line), &data[ofs],
671 min(len, 16U), ofs));
672 ofs += 16;
673 len -= min(len, 16U);
674 }
675}
676
677#define MAX_RESET_BACKOFF 10
678
679static void schedule_reset(struct ipw2100_priv *priv)
680{
681 time64_t now = ktime_get_boottime_seconds();
682
683 /* If we haven't received a reset request within the backoff period,
684 * then we can reset the backoff interval so this reset occurs
685 * immediately */
686 if (priv->reset_backoff &&
687 (now - priv->last_reset > priv->reset_backoff))
688 priv->reset_backoff = 0;
689
690 priv->last_reset = now;
691
692 if (!(priv->status & STATUS_RESET_PENDING)) {
693 IPW_DEBUG_INFO("%s: Scheduling firmware restart (%llds).\n",
694 priv->net_dev->name, priv->reset_backoff);
695 netif_carrier_off(priv->net_dev);
696 netif_stop_queue(priv->net_dev);
697 priv->status |= STATUS_RESET_PENDING;
698 if (priv->reset_backoff)
699 schedule_delayed_work(&priv->reset_work,
700 priv->reset_backoff * HZ);
701 else
702 schedule_delayed_work(&priv->reset_work, 0);
703
704 if (priv->reset_backoff < MAX_RESET_BACKOFF)
705 priv->reset_backoff++;
706
707 wake_up_interruptible(&priv->wait_command_queue);
708 } else
709 IPW_DEBUG_INFO("%s: Firmware restart already in progress.\n",
710 priv->net_dev->name);
711
712}
713
714#define HOST_COMPLETE_TIMEOUT (2 * HZ)
715static int ipw2100_hw_send_command(struct ipw2100_priv *priv,
716 struct host_command *cmd)
717{
718 struct list_head *element;
719 struct ipw2100_tx_packet *packet;
720 unsigned long flags;
721 int err = 0;
722
723 IPW_DEBUG_HC("Sending %s command (#%d), %d bytes\n",
724 command_types[cmd->host_command], cmd->host_command,
725 cmd->host_command_length);
726 printk_buf(IPW_DL_HC, (u8 *) cmd->host_command_parameters,
727 cmd->host_command_length);
728
729 spin_lock_irqsave(&priv->low_lock, flags);
730
731 if (priv->fatal_error) {
732 IPW_DEBUG_INFO
733 ("Attempt to send command while hardware in fatal error condition.\n");
734 err = -EIO;
735 goto fail_unlock;
736 }
737
738 if (!(priv->status & STATUS_RUNNING)) {
739 IPW_DEBUG_INFO
740 ("Attempt to send command while hardware is not running.\n");
741 err = -EIO;
742 goto fail_unlock;
743 }
744
745 if (priv->status & STATUS_CMD_ACTIVE) {
746 IPW_DEBUG_INFO
747 ("Attempt to send command while another command is pending.\n");
748 err = -EBUSY;
749 goto fail_unlock;
750 }
751
752 if (list_empty(&priv->msg_free_list)) {
753 IPW_DEBUG_INFO("no available msg buffers\n");
754 goto fail_unlock;
755 }
756
757 priv->status |= STATUS_CMD_ACTIVE;
758 priv->messages_sent++;
759
760 element = priv->msg_free_list.next;
761
762 packet = list_entry(element, struct ipw2100_tx_packet, list);
763 packet->jiffy_start = jiffies;
764
765 /* initialize the firmware command packet */
766 packet->info.c_struct.cmd->host_command_reg = cmd->host_command;
767 packet->info.c_struct.cmd->host_command_reg1 = cmd->host_command1;
768 packet->info.c_struct.cmd->host_command_len_reg =
769 cmd->host_command_length;
770 packet->info.c_struct.cmd->sequence = cmd->host_command_sequence;
771
772 memcpy(packet->info.c_struct.cmd->host_command_params_reg,
773 cmd->host_command_parameters,
774 sizeof(packet->info.c_struct.cmd->host_command_params_reg));
775
776 list_del(element);
777 DEC_STAT(&priv->msg_free_stat);
778
779 list_add_tail(element, &priv->msg_pend_list);
780 INC_STAT(&priv->msg_pend_stat);
781
782 ipw2100_tx_send_commands(priv);
783 ipw2100_tx_send_data(priv);
784
785 spin_unlock_irqrestore(&priv->low_lock, flags);
786
787 /*
788 * We must wait for this command to complete before another
789 * command can be sent... but if we wait more than 3 seconds
790 * then there is a problem.
791 */
792
793 err =
794 wait_event_interruptible_timeout(priv->wait_command_queue,
795 !(priv->
796 status & STATUS_CMD_ACTIVE),
797 HOST_COMPLETE_TIMEOUT);
798
799 if (err == 0) {
800 IPW_DEBUG_INFO("Command completion failed out after %dms.\n",
801 1000 * (HOST_COMPLETE_TIMEOUT / HZ));
802 priv->fatal_error = IPW2100_ERR_MSG_TIMEOUT;
803 priv->status &= ~STATUS_CMD_ACTIVE;
804 schedule_reset(priv);
805 return -EIO;
806 }
807
808 if (priv->fatal_error) {
809 printk(KERN_WARNING DRV_NAME ": %s: firmware fatal error\n",
810 priv->net_dev->name);
811 return -EIO;
812 }
813
814 /* !!!!! HACK TEST !!!!!
815 * When lots of debug trace statements are enabled, the driver
816 * doesn't seem to have as many firmware restart cycles...
817 *
818 * As a test, we're sticking in a 1/100s delay here */
819 schedule_timeout_uninterruptible(msecs_to_jiffies(10));
820
821 return 0;
822
823 fail_unlock:
824 spin_unlock_irqrestore(&priv->low_lock, flags);
825
826 return err;
827}
828
829/*
830 * Verify the values and data access of the hardware
831 * No locks needed or used. No functions called.
832 */
833static int ipw2100_verify(struct ipw2100_priv *priv)
834{
835 u32 data1, data2;
836 u32 address;
837
838 u32 val1 = 0x76543210;
839 u32 val2 = 0xFEDCBA98;
840
841 /* Domain 0 check - all values should be DOA_DEBUG */
842 for (address = IPW_REG_DOA_DEBUG_AREA_START;
843 address < IPW_REG_DOA_DEBUG_AREA_END; address += sizeof(u32)) {
844 read_register(priv->net_dev, address, &data1);
845 if (data1 != IPW_DATA_DOA_DEBUG_VALUE)
846 return -EIO;
847 }
848
849 /* Domain 1 check - use arbitrary read/write compare */
850 for (address = 0; address < 5; address++) {
851 /* The memory area is not used now */
852 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
853 val1);
854 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
855 val2);
856 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
857 &data1);
858 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
859 &data2);
860 if (val1 == data1 && val2 == data2)
861 return 0;
862 }
863
864 return -EIO;
865}
866
867/*
868 *
869 * Loop until the CARD_DISABLED bit is the same value as the
870 * supplied parameter
871 *
872 * TODO: See if it would be more efficient to do a wait/wake
873 * cycle and have the completion event trigger the wakeup
874 *
875 */
876#define IPW_CARD_DISABLE_COMPLETE_WAIT 100 // 100 milli
877static int ipw2100_wait_for_card_state(struct ipw2100_priv *priv, int state)
878{
879 int i;
880 u32 card_state;
881 u32 len = sizeof(card_state);
882 int err;
883
884 for (i = 0; i <= IPW_CARD_DISABLE_COMPLETE_WAIT * 1000; i += 50) {
885 err = ipw2100_get_ordinal(priv, IPW_ORD_CARD_DISABLED,
886 &card_state, &len);
887 if (err) {
888 IPW_DEBUG_INFO("Query of CARD_DISABLED ordinal "
889 "failed.\n");
890 return 0;
891 }
892
893 /* We'll break out if either the HW state says it is
894 * in the state we want, or if HOST_COMPLETE command
895 * finishes */
896 if ((card_state == state) ||
897 ((priv->status & STATUS_ENABLED) ?
898 IPW_HW_STATE_ENABLED : IPW_HW_STATE_DISABLED) == state) {
899 if (state == IPW_HW_STATE_ENABLED)
900 priv->status |= STATUS_ENABLED;
901 else
902 priv->status &= ~STATUS_ENABLED;
903
904 return 0;
905 }
906
907 udelay(50);
908 }
909
910 IPW_DEBUG_INFO("ipw2100_wait_for_card_state to %s state timed out\n",
911 state ? "DISABLED" : "ENABLED");
912 return -EIO;
913}
914
915/*********************************************************************
916 Procedure : sw_reset_and_clock
917 Purpose : Asserts s/w reset, asserts clock initialization
918 and waits for clock stabilization
919 ********************************************************************/
920static int sw_reset_and_clock(struct ipw2100_priv *priv)
921{
922 int i;
923 u32 r;
924
925 // assert s/w reset
926 write_register(priv->net_dev, IPW_REG_RESET_REG,
927 IPW_AUX_HOST_RESET_REG_SW_RESET);
928
929 // wait for clock stabilization
930 for (i = 0; i < 1000; i++) {
931 udelay(IPW_WAIT_RESET_ARC_COMPLETE_DELAY);
932
933 // check clock ready bit
934 read_register(priv->net_dev, IPW_REG_RESET_REG, &r);
935 if (r & IPW_AUX_HOST_RESET_REG_PRINCETON_RESET)
936 break;
937 }
938
939 if (i == 1000)
940 return -EIO; // TODO: better error value
941
942 /* set "initialization complete" bit to move adapter to
943 * D0 state */
944 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
945 IPW_AUX_HOST_GP_CNTRL_BIT_INIT_DONE);
946
947 /* wait for clock stabilization */
948 for (i = 0; i < 10000; i++) {
949 udelay(IPW_WAIT_CLOCK_STABILIZATION_DELAY * 4);
950
951 /* check clock ready bit */
952 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
953 if (r & IPW_AUX_HOST_GP_CNTRL_BIT_CLOCK_READY)
954 break;
955 }
956
957 if (i == 10000)
958 return -EIO; /* TODO: better error value */
959
960 /* set D0 standby bit */
961 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
962 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
963 r | IPW_AUX_HOST_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
964
965 return 0;
966}
967
968/*********************************************************************
969 Procedure : ipw2100_download_firmware
970 Purpose : Initiaze adapter after power on.
971 The sequence is:
972 1. assert s/w reset first!
973 2. awake clocks & wait for clock stabilization
974 3. hold ARC (don't ask me why...)
975 4. load Dino ucode and reset/clock init again
976 5. zero-out shared mem
977 6. download f/w
978 *******************************************************************/
979static int ipw2100_download_firmware(struct ipw2100_priv *priv)
980{
981 u32 address;
982 int err;
983
984#ifndef CONFIG_PM
985 /* Fetch the firmware and microcode */
986 struct ipw2100_fw ipw2100_firmware;
987#endif
988
989 if (priv->fatal_error) {
990 IPW_DEBUG_ERROR("%s: ipw2100_download_firmware called after "
991 "fatal error %d. Interface must be brought down.\n",
992 priv->net_dev->name, priv->fatal_error);
993 return -EINVAL;
994 }
995#ifdef CONFIG_PM
996 if (!ipw2100_firmware.version) {
997 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
998 if (err) {
999 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
1000 priv->net_dev->name, err);
1001 priv->fatal_error = IPW2100_ERR_FW_LOAD;
1002 goto fail;
1003 }
1004 }
1005#else
1006 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
1007 if (err) {
1008 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
1009 priv->net_dev->name, err);
1010 priv->fatal_error = IPW2100_ERR_FW_LOAD;
1011 goto fail;
1012 }
1013#endif
1014 priv->firmware_version = ipw2100_firmware.version;
1015
1016 /* s/w reset and clock stabilization */
1017 err = sw_reset_and_clock(priv);
1018 if (err) {
1019 IPW_DEBUG_ERROR("%s: sw_reset_and_clock failed: %d\n",
1020 priv->net_dev->name, err);
1021 goto fail;
1022 }
1023
1024 err = ipw2100_verify(priv);
1025 if (err) {
1026 IPW_DEBUG_ERROR("%s: ipw2100_verify failed: %d\n",
1027 priv->net_dev->name, err);
1028 goto fail;
1029 }
1030
1031 /* Hold ARC */
1032 write_nic_dword(priv->net_dev,
1033 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x80000000);
1034
1035 /* allow ARC to run */
1036 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1037
1038 /* load microcode */
1039 err = ipw2100_ucode_download(priv, &ipw2100_firmware);
1040 if (err) {
1041 printk(KERN_ERR DRV_NAME ": %s: Error loading microcode: %d\n",
1042 priv->net_dev->name, err);
1043 goto fail;
1044 }
1045
1046 /* release ARC */
1047 write_nic_dword(priv->net_dev,
1048 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x00000000);
1049
1050 /* s/w reset and clock stabilization (again!!!) */
1051 err = sw_reset_and_clock(priv);
1052 if (err) {
1053 printk(KERN_ERR DRV_NAME
1054 ": %s: sw_reset_and_clock failed: %d\n",
1055 priv->net_dev->name, err);
1056 goto fail;
1057 }
1058
1059 /* load f/w */
1060 err = ipw2100_fw_download(priv, &ipw2100_firmware);
1061 if (err) {
1062 IPW_DEBUG_ERROR("%s: Error loading firmware: %d\n",
1063 priv->net_dev->name, err);
1064 goto fail;
1065 }
1066#ifndef CONFIG_PM
1067 /*
1068 * When the .resume method of the driver is called, the other
1069 * part of the system, i.e. the ide driver could still stay in
1070 * the suspend stage. This prevents us from loading the firmware
1071 * from the disk. --YZ
1072 */
1073
1074 /* free any storage allocated for firmware image */
1075 ipw2100_release_firmware(priv, &ipw2100_firmware);
1076#endif
1077
1078 /* zero out Domain 1 area indirectly (Si requirement) */
1079 for (address = IPW_HOST_FW_SHARED_AREA0;
1080 address < IPW_HOST_FW_SHARED_AREA0_END; address += 4)
1081 write_nic_dword(priv->net_dev, address, 0);
1082 for (address = IPW_HOST_FW_SHARED_AREA1;
1083 address < IPW_HOST_FW_SHARED_AREA1_END; address += 4)
1084 write_nic_dword(priv->net_dev, address, 0);
1085 for (address = IPW_HOST_FW_SHARED_AREA2;
1086 address < IPW_HOST_FW_SHARED_AREA2_END; address += 4)
1087 write_nic_dword(priv->net_dev, address, 0);
1088 for (address = IPW_HOST_FW_SHARED_AREA3;
1089 address < IPW_HOST_FW_SHARED_AREA3_END; address += 4)
1090 write_nic_dword(priv->net_dev, address, 0);
1091 for (address = IPW_HOST_FW_INTERRUPT_AREA;
1092 address < IPW_HOST_FW_INTERRUPT_AREA_END; address += 4)
1093 write_nic_dword(priv->net_dev, address, 0);
1094
1095 return 0;
1096
1097 fail:
1098 ipw2100_release_firmware(priv, &ipw2100_firmware);
1099 return err;
1100}
1101
1102static inline void ipw2100_enable_interrupts(struct ipw2100_priv *priv)
1103{
1104 if (priv->status & STATUS_INT_ENABLED)
1105 return;
1106 priv->status |= STATUS_INT_ENABLED;
1107 write_register(priv->net_dev, IPW_REG_INTA_MASK, IPW_INTERRUPT_MASK);
1108}
1109
1110static inline void ipw2100_disable_interrupts(struct ipw2100_priv *priv)
1111{
1112 if (!(priv->status & STATUS_INT_ENABLED))
1113 return;
1114 priv->status &= ~STATUS_INT_ENABLED;
1115 write_register(priv->net_dev, IPW_REG_INTA_MASK, 0x0);
1116}
1117
1118static void ipw2100_initialize_ordinals(struct ipw2100_priv *priv)
1119{
1120 struct ipw2100_ordinals *ord = &priv->ordinals;
1121
1122 IPW_DEBUG_INFO("enter\n");
1123
1124 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_1,
1125 &ord->table1_addr);
1126
1127 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_2,
1128 &ord->table2_addr);
1129
1130 read_nic_dword(priv->net_dev, ord->table1_addr, &ord->table1_size);
1131 read_nic_dword(priv->net_dev, ord->table2_addr, &ord->table2_size);
1132
1133 ord->table2_size &= 0x0000FFFF;
1134
1135 IPW_DEBUG_INFO("table 1 size: %d\n", ord->table1_size);
1136 IPW_DEBUG_INFO("table 2 size: %d\n", ord->table2_size);
1137 IPW_DEBUG_INFO("exit\n");
1138}
1139
1140static inline void ipw2100_hw_set_gpio(struct ipw2100_priv *priv)
1141{
1142 u32 reg = 0;
1143 /*
1144 * Set GPIO 3 writable by FW; GPIO 1 writable
1145 * by driver and enable clock
1146 */
1147 reg = (IPW_BIT_GPIO_GPIO3_MASK | IPW_BIT_GPIO_GPIO1_ENABLE |
1148 IPW_BIT_GPIO_LED_OFF);
1149 write_register(priv->net_dev, IPW_REG_GPIO, reg);
1150}
1151
1152static int rf_kill_active(struct ipw2100_priv *priv)
1153{
1154#define MAX_RF_KILL_CHECKS 5
1155#define RF_KILL_CHECK_DELAY 40
1156
1157 unsigned short value = 0;
1158 u32 reg = 0;
1159 int i;
1160
1161 if (!(priv->hw_features & HW_FEATURE_RFKILL)) {
1162 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1163 priv->status &= ~STATUS_RF_KILL_HW;
1164 return 0;
1165 }
1166
1167 for (i = 0; i < MAX_RF_KILL_CHECKS; i++) {
1168 udelay(RF_KILL_CHECK_DELAY);
1169 read_register(priv->net_dev, IPW_REG_GPIO, ®);
1170 value = (value << 1) | ((reg & IPW_BIT_GPIO_RF_KILL) ? 0 : 1);
1171 }
1172
1173 if (value == 0) {
1174 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
1175 priv->status |= STATUS_RF_KILL_HW;
1176 } else {
1177 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1178 priv->status &= ~STATUS_RF_KILL_HW;
1179 }
1180
1181 return (value == 0);
1182}
1183
1184static int ipw2100_get_hw_features(struct ipw2100_priv *priv)
1185{
1186 u32 addr, len;
1187 u32 val;
1188
1189 /*
1190 * EEPROM_SRAM_DB_START_ADDRESS using ordinal in ordinal table 1
1191 */
1192 len = sizeof(addr);
1193 if (ipw2100_get_ordinal
1194 (priv, IPW_ORD_EEPROM_SRAM_DB_BLOCK_START_ADDRESS, &addr, &len)) {
1195 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1196 __LINE__);
1197 return -EIO;
1198 }
1199
1200 IPW_DEBUG_INFO("EEPROM address: %08X\n", addr);
1201
1202 /*
1203 * EEPROM version is the byte at offset 0xfd in firmware
1204 * We read 4 bytes, then shift out the byte we actually want */
1205 read_nic_dword(priv->net_dev, addr + 0xFC, &val);
1206 priv->eeprom_version = (val >> 24) & 0xFF;
1207 IPW_DEBUG_INFO("EEPROM version: %d\n", priv->eeprom_version);
1208
1209 /*
1210 * HW RF Kill enable is bit 0 in byte at offset 0x21 in firmware
1211 *
1212 * notice that the EEPROM bit is reverse polarity, i.e.
1213 * bit = 0 signifies HW RF kill switch is supported
1214 * bit = 1 signifies HW RF kill switch is NOT supported
1215 */
1216 read_nic_dword(priv->net_dev, addr + 0x20, &val);
1217 if (!((val >> 24) & 0x01))
1218 priv->hw_features |= HW_FEATURE_RFKILL;
1219
1220 IPW_DEBUG_INFO("HW RF Kill: %ssupported.\n",
1221 (priv->hw_features & HW_FEATURE_RFKILL) ? "" : "not ");
1222
1223 return 0;
1224}
1225
1226/*
1227 * Start firmware execution after power on and initialization
1228 * The sequence is:
1229 * 1. Release ARC
1230 * 2. Wait for f/w initialization completes;
1231 */
1232static int ipw2100_start_adapter(struct ipw2100_priv *priv)
1233{
1234 int i;
1235 u32 inta, inta_mask, gpio;
1236
1237 IPW_DEBUG_INFO("enter\n");
1238
1239 if (priv->status & STATUS_RUNNING)
1240 return 0;
1241
1242 /*
1243 * Initialize the hw - drive adapter to DO state by setting
1244 * init_done bit. Wait for clk_ready bit and Download
1245 * fw & dino ucode
1246 */
1247 if (ipw2100_download_firmware(priv)) {
1248 printk(KERN_ERR DRV_NAME
1249 ": %s: Failed to power on the adapter.\n",
1250 priv->net_dev->name);
1251 return -EIO;
1252 }
1253
1254 /* Clear the Tx, Rx and Msg queues and the r/w indexes
1255 * in the firmware RBD and TBD ring queue */
1256 ipw2100_queues_initialize(priv);
1257
1258 ipw2100_hw_set_gpio(priv);
1259
1260 /* TODO -- Look at disabling interrupts here to make sure none
1261 * get fired during FW initialization */
1262
1263 /* Release ARC - clear reset bit */
1264 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1265
1266 /* wait for f/w initialization complete */
1267 IPW_DEBUG_FW("Waiting for f/w initialization to complete...\n");
1268 i = 5000;
1269 do {
1270 schedule_timeout_uninterruptible(msecs_to_jiffies(40));
1271 /* Todo... wait for sync command ... */
1272
1273 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1274
1275 /* check "init done" bit */
1276 if (inta & IPW2100_INTA_FW_INIT_DONE) {
1277 /* reset "init done" bit */
1278 write_register(priv->net_dev, IPW_REG_INTA,
1279 IPW2100_INTA_FW_INIT_DONE);
1280 break;
1281 }
1282
1283 /* check error conditions : we check these after the firmware
1284 * check so that if there is an error, the interrupt handler
1285 * will see it and the adapter will be reset */
1286 if (inta &
1287 (IPW2100_INTA_FATAL_ERROR | IPW2100_INTA_PARITY_ERROR)) {
1288 /* clear error conditions */
1289 write_register(priv->net_dev, IPW_REG_INTA,
1290 IPW2100_INTA_FATAL_ERROR |
1291 IPW2100_INTA_PARITY_ERROR);
1292 }
1293 } while (--i);
1294
1295 /* Clear out any pending INTAs since we aren't supposed to have
1296 * interrupts enabled at this point... */
1297 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1298 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
1299 inta &= IPW_INTERRUPT_MASK;
1300 /* Clear out any pending interrupts */
1301 if (inta & inta_mask)
1302 write_register(priv->net_dev, IPW_REG_INTA, inta);
1303
1304 IPW_DEBUG_FW("f/w initialization complete: %s\n",
1305 i ? "SUCCESS" : "FAILED");
1306
1307 if (!i) {
1308 printk(KERN_WARNING DRV_NAME
1309 ": %s: Firmware did not initialize.\n",
1310 priv->net_dev->name);
1311 return -EIO;
1312 }
1313
1314 /* allow firmware to write to GPIO1 & GPIO3 */
1315 read_register(priv->net_dev, IPW_REG_GPIO, &gpio);
1316
1317 gpio |= (IPW_BIT_GPIO_GPIO1_MASK | IPW_BIT_GPIO_GPIO3_MASK);
1318
1319 write_register(priv->net_dev, IPW_REG_GPIO, gpio);
1320
1321 /* Ready to receive commands */
1322 priv->status |= STATUS_RUNNING;
1323
1324 /* The adapter has been reset; we are not associated */
1325 priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
1326
1327 IPW_DEBUG_INFO("exit\n");
1328
1329 return 0;
1330}
1331
1332static inline void ipw2100_reset_fatalerror(struct ipw2100_priv *priv)
1333{
1334 if (!priv->fatal_error)
1335 return;
1336
1337 priv->fatal_errors[priv->fatal_index++] = priv->fatal_error;
1338 priv->fatal_index %= IPW2100_ERROR_QUEUE;
1339 priv->fatal_error = 0;
1340}
1341
1342/* NOTE: Our interrupt is disabled when this method is called */
1343static int ipw2100_power_cycle_adapter(struct ipw2100_priv *priv)
1344{
1345 u32 reg;
1346 int i;
1347
1348 IPW_DEBUG_INFO("Power cycling the hardware.\n");
1349
1350 ipw2100_hw_set_gpio(priv);
1351
1352 /* Step 1. Stop Master Assert */
1353 write_register(priv->net_dev, IPW_REG_RESET_REG,
1354 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1355
1356 /* Step 2. Wait for stop Master Assert
1357 * (not more than 50us, otherwise ret error */
1358 i = 5;
1359 do {
1360 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
1361 read_register(priv->net_dev, IPW_REG_RESET_REG, ®);
1362
1363 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1364 break;
1365 } while (--i);
1366
1367 priv->status &= ~STATUS_RESET_PENDING;
1368
1369 if (!i) {
1370 IPW_DEBUG_INFO
1371 ("exit - waited too long for master assert stop\n");
1372 return -EIO;
1373 }
1374
1375 write_register(priv->net_dev, IPW_REG_RESET_REG,
1376 IPW_AUX_HOST_RESET_REG_SW_RESET);
1377
1378 /* Reset any fatal_error conditions */
1379 ipw2100_reset_fatalerror(priv);
1380
1381 /* At this point, the adapter is now stopped and disabled */
1382 priv->status &= ~(STATUS_RUNNING | STATUS_ASSOCIATING |
1383 STATUS_ASSOCIATED | STATUS_ENABLED);
1384
1385 return 0;
1386}
1387
1388/*
1389 * Send the CARD_DISABLE_PHY_OFF command to the card to disable it
1390 *
1391 * After disabling, if the card was associated, a STATUS_ASSN_LOST will be sent.
1392 *
1393 * STATUS_CARD_DISABLE_NOTIFICATION will be sent regardless of
1394 * if STATUS_ASSN_LOST is sent.
1395 */
1396static int ipw2100_hw_phy_off(struct ipw2100_priv *priv)
1397{
1398
1399#define HW_PHY_OFF_LOOP_DELAY (msecs_to_jiffies(50))
1400
1401 struct host_command cmd = {
1402 .host_command = CARD_DISABLE_PHY_OFF,
1403 .host_command_sequence = 0,
1404 .host_command_length = 0,
1405 };
1406 int err, i;
1407 u32 val1, val2;
1408
1409 IPW_DEBUG_HC("CARD_DISABLE_PHY_OFF\n");
1410
1411 /* Turn off the radio */
1412 err = ipw2100_hw_send_command(priv, &cmd);
1413 if (err)
1414 return err;
1415
1416 for (i = 0; i < 2500; i++) {
1417 read_nic_dword(priv->net_dev, IPW2100_CONTROL_REG, &val1);
1418 read_nic_dword(priv->net_dev, IPW2100_COMMAND, &val2);
1419
1420 if ((val1 & IPW2100_CONTROL_PHY_OFF) &&
1421 (val2 & IPW2100_COMMAND_PHY_OFF))
1422 return 0;
1423
1424 schedule_timeout_uninterruptible(HW_PHY_OFF_LOOP_DELAY);
1425 }
1426
1427 return -EIO;
1428}
1429
1430static int ipw2100_enable_adapter(struct ipw2100_priv *priv)
1431{
1432 struct host_command cmd = {
1433 .host_command = HOST_COMPLETE,
1434 .host_command_sequence = 0,
1435 .host_command_length = 0
1436 };
1437 int err = 0;
1438
1439 IPW_DEBUG_HC("HOST_COMPLETE\n");
1440
1441 if (priv->status & STATUS_ENABLED)
1442 return 0;
1443
1444 mutex_lock(&priv->adapter_mutex);
1445
1446 if (rf_kill_active(priv)) {
1447 IPW_DEBUG_HC("Command aborted due to RF kill active.\n");
1448 goto fail_up;
1449 }
1450
1451 err = ipw2100_hw_send_command(priv, &cmd);
1452 if (err) {
1453 IPW_DEBUG_INFO("Failed to send HOST_COMPLETE command\n");
1454 goto fail_up;
1455 }
1456
1457 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_ENABLED);
1458 if (err) {
1459 IPW_DEBUG_INFO("%s: card not responding to init command.\n",
1460 priv->net_dev->name);
1461 goto fail_up;
1462 }
1463
1464 if (priv->stop_hang_check) {
1465 priv->stop_hang_check = 0;
1466 schedule_delayed_work(&priv->hang_check, HZ / 2);
1467 }
1468
1469 fail_up:
1470 mutex_unlock(&priv->adapter_mutex);
1471 return err;
1472}
1473
1474static int ipw2100_hw_stop_adapter(struct ipw2100_priv *priv)
1475{
1476#define HW_POWER_DOWN_DELAY (msecs_to_jiffies(100))
1477
1478 struct host_command cmd = {
1479 .host_command = HOST_PRE_POWER_DOWN,
1480 .host_command_sequence = 0,
1481 .host_command_length = 0,
1482 };
1483 int err, i;
1484 u32 reg;
1485
1486 if (!(priv->status & STATUS_RUNNING))
1487 return 0;
1488
1489 priv->status |= STATUS_STOPPING;
1490
1491 /* We can only shut down the card if the firmware is operational. So,
1492 * if we haven't reset since a fatal_error, then we can not send the
1493 * shutdown commands. */
1494 if (!priv->fatal_error) {
1495 /* First, make sure the adapter is enabled so that the PHY_OFF
1496 * command can shut it down */
1497 ipw2100_enable_adapter(priv);
1498
1499 err = ipw2100_hw_phy_off(priv);
1500 if (err)
1501 printk(KERN_WARNING DRV_NAME
1502 ": Error disabling radio %d\n", err);
1503
1504 /*
1505 * If in D0-standby mode going directly to D3 may cause a
1506 * PCI bus violation. Therefore we must change out of the D0
1507 * state.
1508 *
1509 * Sending the PREPARE_FOR_POWER_DOWN will restrict the
1510 * hardware from going into standby mode and will transition
1511 * out of D0-standby if it is already in that state.
1512 *
1513 * STATUS_PREPARE_POWER_DOWN_COMPLETE will be sent by the
1514 * driver upon completion. Once received, the driver can
1515 * proceed to the D3 state.
1516 *
1517 * Prepare for power down command to fw. This command would
1518 * take HW out of D0-standby and prepare it for D3 state.
1519 *
1520 * Currently FW does not support event notification for this
1521 * event. Therefore, skip waiting for it. Just wait a fixed
1522 * 100ms
1523 */
1524 IPW_DEBUG_HC("HOST_PRE_POWER_DOWN\n");
1525
1526 err = ipw2100_hw_send_command(priv, &cmd);
1527 if (err)
1528 printk(KERN_WARNING DRV_NAME ": "
1529 "%s: Power down command failed: Error %d\n",
1530 priv->net_dev->name, err);
1531 else
1532 schedule_timeout_uninterruptible(HW_POWER_DOWN_DELAY);
1533 }
1534
1535 priv->status &= ~STATUS_ENABLED;
1536
1537 /*
1538 * Set GPIO 3 writable by FW; GPIO 1 writable
1539 * by driver and enable clock
1540 */
1541 ipw2100_hw_set_gpio(priv);
1542
1543 /*
1544 * Power down adapter. Sequence:
1545 * 1. Stop master assert (RESET_REG[9]=1)
1546 * 2. Wait for stop master (RESET_REG[8]==1)
1547 * 3. S/w reset assert (RESET_REG[7] = 1)
1548 */
1549
1550 /* Stop master assert */
1551 write_register(priv->net_dev, IPW_REG_RESET_REG,
1552 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1553
1554 /* wait stop master not more than 50 usec.
1555 * Otherwise return error. */
1556 for (i = 5; i > 0; i--) {
1557 udelay(10);
1558
1559 /* Check master stop bit */
1560 read_register(priv->net_dev, IPW_REG_RESET_REG, ®);
1561
1562 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1563 break;
1564 }
1565
1566 if (i == 0)
1567 printk(KERN_WARNING DRV_NAME
1568 ": %s: Could now power down adapter.\n",
1569 priv->net_dev->name);
1570
1571 /* assert s/w reset */
1572 write_register(priv->net_dev, IPW_REG_RESET_REG,
1573 IPW_AUX_HOST_RESET_REG_SW_RESET);
1574
1575 priv->status &= ~(STATUS_RUNNING | STATUS_STOPPING);
1576
1577 return 0;
1578}
1579
1580static int ipw2100_disable_adapter(struct ipw2100_priv *priv)
1581{
1582 struct host_command cmd = {
1583 .host_command = CARD_DISABLE,
1584 .host_command_sequence = 0,
1585 .host_command_length = 0
1586 };
1587 int err = 0;
1588
1589 IPW_DEBUG_HC("CARD_DISABLE\n");
1590
1591 if (!(priv->status & STATUS_ENABLED))
1592 return 0;
1593
1594 /* Make sure we clear the associated state */
1595 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1596
1597 if (!priv->stop_hang_check) {
1598 priv->stop_hang_check = 1;
1599 cancel_delayed_work(&priv->hang_check);
1600 }
1601
1602 mutex_lock(&priv->adapter_mutex);
1603
1604 err = ipw2100_hw_send_command(priv, &cmd);
1605 if (err) {
1606 printk(KERN_WARNING DRV_NAME
1607 ": exit - failed to send CARD_DISABLE command\n");
1608 goto fail_up;
1609 }
1610
1611 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_DISABLED);
1612 if (err) {
1613 printk(KERN_WARNING DRV_NAME
1614 ": exit - card failed to change to DISABLED\n");
1615 goto fail_up;
1616 }
1617
1618 IPW_DEBUG_INFO("TODO: implement scan state machine\n");
1619
1620 fail_up:
1621 mutex_unlock(&priv->adapter_mutex);
1622 return err;
1623}
1624
1625static int ipw2100_set_scan_options(struct ipw2100_priv *priv)
1626{
1627 struct host_command cmd = {
1628 .host_command = SET_SCAN_OPTIONS,
1629 .host_command_sequence = 0,
1630 .host_command_length = 8
1631 };
1632 int err;
1633
1634 IPW_DEBUG_INFO("enter\n");
1635
1636 IPW_DEBUG_SCAN("setting scan options\n");
1637
1638 cmd.host_command_parameters[0] = 0;
1639
1640 if (!(priv->config & CFG_ASSOCIATE))
1641 cmd.host_command_parameters[0] |= IPW_SCAN_NOASSOCIATE;
1642 if ((priv->ieee->sec.flags & SEC_ENABLED) && priv->ieee->sec.enabled)
1643 cmd.host_command_parameters[0] |= IPW_SCAN_MIXED_CELL;
1644 if (priv->config & CFG_PASSIVE_SCAN)
1645 cmd.host_command_parameters[0] |= IPW_SCAN_PASSIVE;
1646
1647 cmd.host_command_parameters[1] = priv->channel_mask;
1648
1649 err = ipw2100_hw_send_command(priv, &cmd);
1650
1651 IPW_DEBUG_HC("SET_SCAN_OPTIONS 0x%04X\n",
1652 cmd.host_command_parameters[0]);
1653
1654 return err;
1655}
1656
1657static int ipw2100_start_scan(struct ipw2100_priv *priv)
1658{
1659 struct host_command cmd = {
1660 .host_command = BROADCAST_SCAN,
1661 .host_command_sequence = 0,
1662 .host_command_length = 4
1663 };
1664 int err;
1665
1666 IPW_DEBUG_HC("START_SCAN\n");
1667
1668 cmd.host_command_parameters[0] = 0;
1669
1670 /* No scanning if in monitor mode */
1671 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
1672 return 1;
1673
1674 if (priv->status & STATUS_SCANNING) {
1675 IPW_DEBUG_SCAN("Scan requested while already in scan...\n");
1676 return 0;
1677 }
1678
1679 IPW_DEBUG_INFO("enter\n");
1680
1681 /* Not clearing here; doing so makes iwlist always return nothing...
1682 *
1683 * We should modify the table logic to use aging tables vs. clearing
1684 * the table on each scan start.
1685 */
1686 IPW_DEBUG_SCAN("starting scan\n");
1687
1688 priv->status |= STATUS_SCANNING;
1689 err = ipw2100_hw_send_command(priv, &cmd);
1690 if (err)
1691 priv->status &= ~STATUS_SCANNING;
1692
1693 IPW_DEBUG_INFO("exit\n");
1694
1695 return err;
1696}
1697
1698static const struct libipw_geo ipw_geos[] = {
1699 { /* Restricted */
1700 "---",
1701 .bg_channels = 14,
1702 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
1703 {2427, 4}, {2432, 5}, {2437, 6},
1704 {2442, 7}, {2447, 8}, {2452, 9},
1705 {2457, 10}, {2462, 11}, {2467, 12},
1706 {2472, 13}, {2484, 14}},
1707 },
1708};
1709
1710static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
1711{
1712 unsigned long flags;
1713 int err = 0;
1714 u32 lock;
1715 u32 ord_len = sizeof(lock);
1716
1717 /* Age scan list entries found before suspend */
1718 if (priv->suspend_time) {
1719 libipw_networks_age(priv->ieee, priv->suspend_time);
1720 priv->suspend_time = 0;
1721 }
1722
1723 /* Quiet if manually disabled. */
1724 if (priv->status & STATUS_RF_KILL_SW) {
1725 IPW_DEBUG_INFO("%s: Radio is disabled by Manual Disable "
1726 "switch\n", priv->net_dev->name);
1727 return 0;
1728 }
1729
1730 /* the ipw2100 hardware really doesn't want power management delays
1731 * longer than 175usec
1732 */
1733 cpu_latency_qos_update_request(&ipw2100_pm_qos_req, 175);
1734
1735 /* If the interrupt is enabled, turn it off... */
1736 spin_lock_irqsave(&priv->low_lock, flags);
1737 ipw2100_disable_interrupts(priv);
1738
1739 /* Reset any fatal_error conditions */
1740 ipw2100_reset_fatalerror(priv);
1741 spin_unlock_irqrestore(&priv->low_lock, flags);
1742
1743 if (priv->status & STATUS_POWERED ||
1744 (priv->status & STATUS_RESET_PENDING)) {
1745 /* Power cycle the card ... */
1746 err = ipw2100_power_cycle_adapter(priv);
1747 if (err) {
1748 printk(KERN_WARNING DRV_NAME
1749 ": %s: Could not cycle adapter.\n",
1750 priv->net_dev->name);
1751 goto exit;
1752 }
1753 } else
1754 priv->status |= STATUS_POWERED;
1755
1756 /* Load the firmware, start the clocks, etc. */
1757 err = ipw2100_start_adapter(priv);
1758 if (err) {
1759 printk(KERN_ERR DRV_NAME
1760 ": %s: Failed to start the firmware.\n",
1761 priv->net_dev->name);
1762 goto exit;
1763 }
1764
1765 ipw2100_initialize_ordinals(priv);
1766
1767 /* Determine capabilities of this particular HW configuration */
1768 err = ipw2100_get_hw_features(priv);
1769 if (err) {
1770 printk(KERN_ERR DRV_NAME
1771 ": %s: Failed to determine HW features.\n",
1772 priv->net_dev->name);
1773 goto exit;
1774 }
1775
1776 /* Initialize the geo */
1777 libipw_set_geo(priv->ieee, &ipw_geos[0]);
1778 priv->ieee->freq_band = LIBIPW_24GHZ_BAND;
1779
1780 lock = LOCK_NONE;
1781 err = ipw2100_set_ordinal(priv, IPW_ORD_PERS_DB_LOCK, &lock, &ord_len);
1782 if (err) {
1783 printk(KERN_ERR DRV_NAME
1784 ": %s: Failed to clear ordinal lock.\n",
1785 priv->net_dev->name);
1786 goto exit;
1787 }
1788
1789 priv->status &= ~STATUS_SCANNING;
1790
1791 if (rf_kill_active(priv)) {
1792 printk(KERN_INFO "%s: Radio is disabled by RF switch.\n",
1793 priv->net_dev->name);
1794
1795 if (priv->stop_rf_kill) {
1796 priv->stop_rf_kill = 0;
1797 schedule_delayed_work(&priv->rf_kill,
1798 round_jiffies_relative(HZ));
1799 }
1800
1801 deferred = 1;
1802 }
1803
1804 /* Turn on the interrupt so that commands can be processed */
1805 ipw2100_enable_interrupts(priv);
1806
1807 /* Send all of the commands that must be sent prior to
1808 * HOST_COMPLETE */
1809 err = ipw2100_adapter_setup(priv);
1810 if (err) {
1811 printk(KERN_ERR DRV_NAME ": %s: Failed to start the card.\n",
1812 priv->net_dev->name);
1813 goto exit;
1814 }
1815
1816 if (!deferred) {
1817 /* Enable the adapter - sends HOST_COMPLETE */
1818 err = ipw2100_enable_adapter(priv);
1819 if (err) {
1820 printk(KERN_ERR DRV_NAME ": "
1821 "%s: failed in call to enable adapter.\n",
1822 priv->net_dev->name);
1823 ipw2100_hw_stop_adapter(priv);
1824 goto exit;
1825 }
1826
1827 /* Start a scan . . . */
1828 ipw2100_set_scan_options(priv);
1829 ipw2100_start_scan(priv);
1830 }
1831
1832 exit:
1833 return err;
1834}
1835
1836static void ipw2100_down(struct ipw2100_priv *priv)
1837{
1838 unsigned long flags;
1839 union iwreq_data wrqu = {
1840 .ap_addr = {
1841 .sa_family = ARPHRD_ETHER}
1842 };
1843 int associated = priv->status & STATUS_ASSOCIATED;
1844
1845 /* Kill the RF switch timer */
1846 if (!priv->stop_rf_kill) {
1847 priv->stop_rf_kill = 1;
1848 cancel_delayed_work(&priv->rf_kill);
1849 }
1850
1851 /* Kill the firmware hang check timer */
1852 if (!priv->stop_hang_check) {
1853 priv->stop_hang_check = 1;
1854 cancel_delayed_work(&priv->hang_check);
1855 }
1856
1857 /* Kill any pending resets */
1858 if (priv->status & STATUS_RESET_PENDING)
1859 cancel_delayed_work(&priv->reset_work);
1860
1861 /* Make sure the interrupt is on so that FW commands will be
1862 * processed correctly */
1863 spin_lock_irqsave(&priv->low_lock, flags);
1864 ipw2100_enable_interrupts(priv);
1865 spin_unlock_irqrestore(&priv->low_lock, flags);
1866
1867 if (ipw2100_hw_stop_adapter(priv))
1868 printk(KERN_ERR DRV_NAME ": %s: Error stopping adapter.\n",
1869 priv->net_dev->name);
1870
1871 /* Do not disable the interrupt until _after_ we disable
1872 * the adaptor. Otherwise the CARD_DISABLE command will never
1873 * be ack'd by the firmware */
1874 spin_lock_irqsave(&priv->low_lock, flags);
1875 ipw2100_disable_interrupts(priv);
1876 spin_unlock_irqrestore(&priv->low_lock, flags);
1877
1878 cpu_latency_qos_update_request(&ipw2100_pm_qos_req,
1879 PM_QOS_DEFAULT_VALUE);
1880
1881 /* We have to signal any supplicant if we are disassociating */
1882 if (associated)
1883 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1884
1885 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1886 netif_carrier_off(priv->net_dev);
1887 netif_stop_queue(priv->net_dev);
1888}
1889
1890static int ipw2100_wdev_init(struct net_device *dev)
1891{
1892 struct ipw2100_priv *priv = libipw_priv(dev);
1893 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
1894 struct wireless_dev *wdev = &priv->ieee->wdev;
1895 int i;
1896
1897 memcpy(wdev->wiphy->perm_addr, priv->mac_addr, ETH_ALEN);
1898
1899 /* fill-out priv->ieee->bg_band */
1900 if (geo->bg_channels) {
1901 struct ieee80211_supported_band *bg_band = &priv->ieee->bg_band;
1902
1903 bg_band->band = NL80211_BAND_2GHZ;
1904 bg_band->n_channels = geo->bg_channels;
1905 bg_band->channels = kcalloc(geo->bg_channels,
1906 sizeof(struct ieee80211_channel),
1907 GFP_KERNEL);
1908 if (!bg_band->channels) {
1909 ipw2100_down(priv);
1910 return -ENOMEM;
1911 }
1912 /* translate geo->bg to bg_band.channels */
1913 for (i = 0; i < geo->bg_channels; i++) {
1914 bg_band->channels[i].band = NL80211_BAND_2GHZ;
1915 bg_band->channels[i].center_freq = geo->bg[i].freq;
1916 bg_band->channels[i].hw_value = geo->bg[i].channel;
1917 bg_band->channels[i].max_power = geo->bg[i].max_power;
1918 if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY)
1919 bg_band->channels[i].flags |=
1920 IEEE80211_CHAN_NO_IR;
1921 if (geo->bg[i].flags & LIBIPW_CH_NO_IBSS)
1922 bg_band->channels[i].flags |=
1923 IEEE80211_CHAN_NO_IR;
1924 if (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT)
1925 bg_band->channels[i].flags |=
1926 IEEE80211_CHAN_RADAR;
1927 /* No equivalent for LIBIPW_CH_80211H_RULES,
1928 LIBIPW_CH_UNIFORM_SPREADING, or
1929 LIBIPW_CH_B_ONLY... */
1930 }
1931 /* point at bitrate info */
1932 bg_band->bitrates = ipw2100_bg_rates;
1933 bg_band->n_bitrates = RATE_COUNT;
1934
1935 wdev->wiphy->bands[NL80211_BAND_2GHZ] = bg_band;
1936 }
1937
1938 wdev->wiphy->cipher_suites = ipw_cipher_suites;
1939 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(ipw_cipher_suites);
1940
1941 set_wiphy_dev(wdev->wiphy, &priv->pci_dev->dev);
1942 if (wiphy_register(wdev->wiphy))
1943 return -EIO;
1944 return 0;
1945}
1946
1947static void ipw2100_reset_adapter(struct work_struct *work)
1948{
1949 struct ipw2100_priv *priv =
1950 container_of(work, struct ipw2100_priv, reset_work.work);
1951 unsigned long flags;
1952 union iwreq_data wrqu = {
1953 .ap_addr = {
1954 .sa_family = ARPHRD_ETHER}
1955 };
1956 int associated = priv->status & STATUS_ASSOCIATED;
1957
1958 spin_lock_irqsave(&priv->low_lock, flags);
1959 IPW_DEBUG_INFO(": %s: Restarting adapter.\n", priv->net_dev->name);
1960 priv->resets++;
1961 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1962 priv->status |= STATUS_SECURITY_UPDATED;
1963
1964 /* Force a power cycle even if interface hasn't been opened
1965 * yet */
1966 cancel_delayed_work(&priv->reset_work);
1967 priv->status |= STATUS_RESET_PENDING;
1968 spin_unlock_irqrestore(&priv->low_lock, flags);
1969
1970 mutex_lock(&priv->action_mutex);
1971 /* stop timed checks so that they don't interfere with reset */
1972 priv->stop_hang_check = 1;
1973 cancel_delayed_work(&priv->hang_check);
1974
1975 /* We have to signal any supplicant if we are disassociating */
1976 if (associated)
1977 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1978
1979 ipw2100_up(priv, 0);
1980 mutex_unlock(&priv->action_mutex);
1981
1982}
1983
1984static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status)
1985{
1986
1987#define MAC_ASSOCIATION_READ_DELAY (HZ)
1988 int ret;
1989 unsigned int len, essid_len;
1990 char essid[IW_ESSID_MAX_SIZE];
1991 u32 txrate;
1992 u32 chan;
1993 char *txratename;
1994 u8 bssid[ETH_ALEN];
1995
1996 /*
1997 * TBD: BSSID is usually 00:00:00:00:00:00 here and not
1998 * an actual MAC of the AP. Seems like FW sets this
1999 * address too late. Read it later and expose through
2000 * /proc or schedule a later task to query and update
2001 */
2002
2003 essid_len = IW_ESSID_MAX_SIZE;
2004 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID,
2005 essid, &essid_len);
2006 if (ret) {
2007 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2008 __LINE__);
2009 return;
2010 }
2011
2012 len = sizeof(u32);
2013 ret = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &txrate, &len);
2014 if (ret) {
2015 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2016 __LINE__);
2017 return;
2018 }
2019
2020 len = sizeof(u32);
2021 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &len);
2022 if (ret) {
2023 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2024 __LINE__);
2025 return;
2026 }
2027 len = ETH_ALEN;
2028 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, bssid,
2029 &len);
2030 if (ret) {
2031 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2032 __LINE__);
2033 return;
2034 }
2035 memcpy(priv->ieee->bssid, bssid, ETH_ALEN);
2036
2037 switch (txrate) {
2038 case TX_RATE_1_MBIT:
2039 txratename = "1Mbps";
2040 break;
2041 case TX_RATE_2_MBIT:
2042 txratename = "2Mbsp";
2043 break;
2044 case TX_RATE_5_5_MBIT:
2045 txratename = "5.5Mbps";
2046 break;
2047 case TX_RATE_11_MBIT:
2048 txratename = "11Mbps";
2049 break;
2050 default:
2051 IPW_DEBUG_INFO("Unknown rate: %d\n", txrate);
2052 txratename = "unknown rate";
2053 break;
2054 }
2055
2056 IPW_DEBUG_INFO("%s: Associated with '%*pE' at %s, channel %d (BSSID=%pM)\n",
2057 priv->net_dev->name, essid_len, essid,
2058 txratename, chan, bssid);
2059
2060 /* now we copy read ssid into dev */
2061 if (!(priv->config & CFG_STATIC_ESSID)) {
2062 priv->essid_len = min((u8) essid_len, (u8) IW_ESSID_MAX_SIZE);
2063 memcpy(priv->essid, essid, priv->essid_len);
2064 }
2065 priv->channel = chan;
2066 memcpy(priv->bssid, bssid, ETH_ALEN);
2067
2068 priv->status |= STATUS_ASSOCIATING;
2069 priv->connect_start = ktime_get_boottime_seconds();
2070
2071 schedule_delayed_work(&priv->wx_event_work, HZ / 10);
2072}
2073
2074static int ipw2100_set_essid(struct ipw2100_priv *priv, char *essid,
2075 int length, int batch_mode)
2076{
2077 int ssid_len = min(length, IW_ESSID_MAX_SIZE);
2078 struct host_command cmd = {
2079 .host_command = SSID,
2080 .host_command_sequence = 0,
2081 .host_command_length = ssid_len
2082 };
2083 int err;
2084
2085 IPW_DEBUG_HC("SSID: '%*pE'\n", ssid_len, essid);
2086
2087 if (ssid_len)
2088 memcpy(cmd.host_command_parameters, essid, ssid_len);
2089
2090 if (!batch_mode) {
2091 err = ipw2100_disable_adapter(priv);
2092 if (err)
2093 return err;
2094 }
2095
2096 /* Bug in FW currently doesn't honor bit 0 in SET_SCAN_OPTIONS to
2097 * disable auto association -- so we cheat by setting a bogus SSID */
2098 if (!ssid_len && !(priv->config & CFG_ASSOCIATE)) {
2099 int i;
2100 u8 *bogus = (u8 *) cmd.host_command_parameters;
2101 for (i = 0; i < IW_ESSID_MAX_SIZE; i++)
2102 bogus[i] = 0x18 + i;
2103 cmd.host_command_length = IW_ESSID_MAX_SIZE;
2104 }
2105
2106 /* NOTE: We always send the SSID command even if the provided ESSID is
2107 * the same as what we currently think is set. */
2108
2109 err = ipw2100_hw_send_command(priv, &cmd);
2110 if (!err) {
2111 memset(priv->essid + ssid_len, 0, IW_ESSID_MAX_SIZE - ssid_len);
2112 memcpy(priv->essid, essid, ssid_len);
2113 priv->essid_len = ssid_len;
2114 }
2115
2116 if (!batch_mode) {
2117 if (ipw2100_enable_adapter(priv))
2118 err = -EIO;
2119 }
2120
2121 return err;
2122}
2123
2124static void isr_indicate_association_lost(struct ipw2100_priv *priv, u32 status)
2125{
2126 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
2127 "disassociated: '%*pE' %pM\n", priv->essid_len, priv->essid,
2128 priv->bssid);
2129
2130 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
2131
2132 if (priv->status & STATUS_STOPPING) {
2133 IPW_DEBUG_INFO("Card is stopping itself, discard ASSN_LOST.\n");
2134 return;
2135 }
2136
2137 eth_zero_addr(priv->bssid);
2138 eth_zero_addr(priv->ieee->bssid);
2139
2140 netif_carrier_off(priv->net_dev);
2141 netif_stop_queue(priv->net_dev);
2142
2143 if (!(priv->status & STATUS_RUNNING))
2144 return;
2145
2146 if (priv->status & STATUS_SECURITY_UPDATED)
2147 schedule_delayed_work(&priv->security_work, 0);
2148
2149 schedule_delayed_work(&priv->wx_event_work, 0);
2150}
2151
2152static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status)
2153{
2154 IPW_DEBUG_INFO("%s: RF Kill state changed to radio OFF.\n",
2155 priv->net_dev->name);
2156
2157 /* RF_KILL is now enabled (else we wouldn't be here) */
2158 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
2159 priv->status |= STATUS_RF_KILL_HW;
2160
2161 /* Make sure the RF Kill check timer is running */
2162 priv->stop_rf_kill = 0;
2163 mod_delayed_work(system_wq, &priv->rf_kill, round_jiffies_relative(HZ));
2164}
2165
2166static void ipw2100_scan_event(struct work_struct *work)
2167{
2168 struct ipw2100_priv *priv = container_of(work, struct ipw2100_priv,
2169 scan_event.work);
2170 union iwreq_data wrqu;
2171
2172 wrqu.data.length = 0;
2173 wrqu.data.flags = 0;
2174 wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL);
2175}
2176
2177static void isr_scan_complete(struct ipw2100_priv *priv, u32 status)
2178{
2179 IPW_DEBUG_SCAN("scan complete\n");
2180 /* Age the scan results... */
2181 priv->ieee->scans++;
2182 priv->status &= ~STATUS_SCANNING;
2183
2184 /* Only userspace-requested scan completion events go out immediately */
2185 if (!priv->user_requested_scan) {
2186 schedule_delayed_work(&priv->scan_event,
2187 round_jiffies_relative(msecs_to_jiffies(4000)));
2188 } else {
2189 priv->user_requested_scan = 0;
2190 mod_delayed_work(system_wq, &priv->scan_event, 0);
2191 }
2192}
2193
2194#ifdef CONFIG_IPW2100_DEBUG
2195#define IPW2100_HANDLER(v, f) { v, f, # v }
2196struct ipw2100_status_indicator {
2197 int status;
2198 void (*cb) (struct ipw2100_priv * priv, u32 status);
2199 char *name;
2200};
2201#else
2202#define IPW2100_HANDLER(v, f) { v, f }
2203struct ipw2100_status_indicator {
2204 int status;
2205 void (*cb) (struct ipw2100_priv * priv, u32 status);
2206};
2207#endif /* CONFIG_IPW2100_DEBUG */
2208
2209static void isr_indicate_scanning(struct ipw2100_priv *priv, u32 status)
2210{
2211 IPW_DEBUG_SCAN("Scanning...\n");
2212 priv->status |= STATUS_SCANNING;
2213}
2214
2215static const struct ipw2100_status_indicator status_handlers[] = {
2216 IPW2100_HANDLER(IPW_STATE_INITIALIZED, NULL),
2217 IPW2100_HANDLER(IPW_STATE_COUNTRY_FOUND, NULL),
2218 IPW2100_HANDLER(IPW_STATE_ASSOCIATED, isr_indicate_associated),
2219 IPW2100_HANDLER(IPW_STATE_ASSN_LOST, isr_indicate_association_lost),
2220 IPW2100_HANDLER(IPW_STATE_ASSN_CHANGED, NULL),
2221 IPW2100_HANDLER(IPW_STATE_SCAN_COMPLETE, isr_scan_complete),
2222 IPW2100_HANDLER(IPW_STATE_ENTERED_PSP, NULL),
2223 IPW2100_HANDLER(IPW_STATE_LEFT_PSP, NULL),
2224 IPW2100_HANDLER(IPW_STATE_RF_KILL, isr_indicate_rf_kill),
2225 IPW2100_HANDLER(IPW_STATE_DISABLED, NULL),
2226 IPW2100_HANDLER(IPW_STATE_POWER_DOWN, NULL),
2227 IPW2100_HANDLER(IPW_STATE_SCANNING, isr_indicate_scanning),
2228 IPW2100_HANDLER(-1, NULL)
2229};
2230
2231static void isr_status_change(struct ipw2100_priv *priv, int status)
2232{
2233 int i;
2234
2235 if (status == IPW_STATE_SCANNING &&
2236 priv->status & STATUS_ASSOCIATED &&
2237 !(priv->status & STATUS_SCANNING)) {
2238 IPW_DEBUG_INFO("Scan detected while associated, with "
2239 "no scan request. Restarting firmware.\n");
2240
2241 /* Wake up any sleeping jobs */
2242 schedule_reset(priv);
2243 }
2244
2245 for (i = 0; status_handlers[i].status != -1; i++) {
2246 if (status == status_handlers[i].status) {
2247 IPW_DEBUG_NOTIF("Status change: %s\n",
2248 status_handlers[i].name);
2249 if (status_handlers[i].cb)
2250 status_handlers[i].cb(priv, status);
2251 priv->wstats.status = status;
2252 return;
2253 }
2254 }
2255
2256 IPW_DEBUG_NOTIF("unknown status received: %04x\n", status);
2257}
2258
2259static void isr_rx_complete_command(struct ipw2100_priv *priv,
2260 struct ipw2100_cmd_header *cmd)
2261{
2262#ifdef CONFIG_IPW2100_DEBUG
2263 if (cmd->host_command_reg < ARRAY_SIZE(command_types)) {
2264 IPW_DEBUG_HC("Command completed '%s (%d)'\n",
2265 command_types[cmd->host_command_reg],
2266 cmd->host_command_reg);
2267 }
2268#endif
2269 if (cmd->host_command_reg == HOST_COMPLETE)
2270 priv->status |= STATUS_ENABLED;
2271
2272 if (cmd->host_command_reg == CARD_DISABLE)
2273 priv->status &= ~STATUS_ENABLED;
2274
2275 priv->status &= ~STATUS_CMD_ACTIVE;
2276
2277 wake_up_interruptible(&priv->wait_command_queue);
2278}
2279
2280#ifdef CONFIG_IPW2100_DEBUG
2281static const char *frame_types[] = {
2282 "COMMAND_STATUS_VAL",
2283 "STATUS_CHANGE_VAL",
2284 "P80211_DATA_VAL",
2285 "P8023_DATA_VAL",
2286 "HOST_NOTIFICATION_VAL"
2287};
2288#endif
2289
2290static int ipw2100_alloc_skb(struct ipw2100_priv *priv,
2291 struct ipw2100_rx_packet *packet)
2292{
2293 packet->skb = dev_alloc_skb(sizeof(struct ipw2100_rx));
2294 if (!packet->skb)
2295 return -ENOMEM;
2296
2297 packet->rxp = (struct ipw2100_rx *)packet->skb->data;
2298 packet->dma_addr = dma_map_single(&priv->pci_dev->dev,
2299 packet->skb->data,
2300 sizeof(struct ipw2100_rx),
2301 DMA_FROM_DEVICE);
2302 if (dma_mapping_error(&priv->pci_dev->dev, packet->dma_addr)) {
2303 dev_kfree_skb(packet->skb);
2304 return -ENOMEM;
2305 }
2306
2307 return 0;
2308}
2309
2310#define SEARCH_ERROR 0xffffffff
2311#define SEARCH_FAIL 0xfffffffe
2312#define SEARCH_SUCCESS 0xfffffff0
2313#define SEARCH_DISCARD 0
2314#define SEARCH_SNAPSHOT 1
2315
2316#define SNAPSHOT_ADDR(ofs) (priv->snapshot[((ofs) >> 12) & 0xff] + ((ofs) & 0xfff))
2317static void ipw2100_snapshot_free(struct ipw2100_priv *priv)
2318{
2319 int i;
2320 if (!priv->snapshot[0])
2321 return;
2322 for (i = 0; i < 0x30; i++)
2323 kfree(priv->snapshot[i]);
2324 priv->snapshot[0] = NULL;
2325}
2326
2327#ifdef IPW2100_DEBUG_C3
2328static int ipw2100_snapshot_alloc(struct ipw2100_priv *priv)
2329{
2330 int i;
2331 if (priv->snapshot[0])
2332 return 1;
2333 for (i = 0; i < 0x30; i++) {
2334 priv->snapshot[i] = kmalloc(0x1000, GFP_ATOMIC);
2335 if (!priv->snapshot[i]) {
2336 IPW_DEBUG_INFO("%s: Error allocating snapshot "
2337 "buffer %d\n", priv->net_dev->name, i);
2338 while (i > 0)
2339 kfree(priv->snapshot[--i]);
2340 priv->snapshot[0] = NULL;
2341 return 0;
2342 }
2343 }
2344
2345 return 1;
2346}
2347
2348static u32 ipw2100_match_buf(struct ipw2100_priv *priv, u8 * in_buf,
2349 size_t len, int mode)
2350{
2351 u32 i, j;
2352 u32 tmp;
2353 u8 *s, *d;
2354 u32 ret;
2355
2356 s = in_buf;
2357 if (mode == SEARCH_SNAPSHOT) {
2358 if (!ipw2100_snapshot_alloc(priv))
2359 mode = SEARCH_DISCARD;
2360 }
2361
2362 for (ret = SEARCH_FAIL, i = 0; i < 0x30000; i += 4) {
2363 read_nic_dword(priv->net_dev, i, &tmp);
2364 if (mode == SEARCH_SNAPSHOT)
2365 *(u32 *) SNAPSHOT_ADDR(i) = tmp;
2366 if (ret == SEARCH_FAIL) {
2367 d = (u8 *) & tmp;
2368 for (j = 0; j < 4; j++) {
2369 if (*s != *d) {
2370 s = in_buf;
2371 continue;
2372 }
2373
2374 s++;
2375 d++;
2376
2377 if ((s - in_buf) == len)
2378 ret = (i + j) - len + 1;
2379 }
2380 } else if (mode == SEARCH_DISCARD)
2381 return ret;
2382 }
2383
2384 return ret;
2385}
2386#endif
2387
2388/*
2389 *
2390 * 0) Disconnect the SKB from the firmware (just unmap)
2391 * 1) Pack the ETH header into the SKB
2392 * 2) Pass the SKB to the network stack
2393 *
2394 * When packet is provided by the firmware, it contains the following:
2395 *
2396 * . libipw_hdr
2397 * . libipw_snap_hdr
2398 *
2399 * The size of the constructed ethernet
2400 *
2401 */
2402#ifdef IPW2100_RX_DEBUG
2403static u8 packet_data[IPW_RX_NIC_BUFFER_LENGTH];
2404#endif
2405
2406static void ipw2100_corruption_detected(struct ipw2100_priv *priv, int i)
2407{
2408#ifdef IPW2100_DEBUG_C3
2409 struct ipw2100_status *status = &priv->status_queue.drv[i];
2410 u32 match, reg;
2411 int j;
2412#endif
2413
2414 IPW_DEBUG_INFO(": PCI latency error detected at 0x%04zX.\n",
2415 i * sizeof(struct ipw2100_status));
2416
2417#ifdef IPW2100_DEBUG_C3
2418 /* Halt the firmware so we can get a good image */
2419 write_register(priv->net_dev, IPW_REG_RESET_REG,
2420 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
2421 j = 5;
2422 do {
2423 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
2424 read_register(priv->net_dev, IPW_REG_RESET_REG, ®);
2425
2426 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
2427 break;
2428 } while (j--);
2429
2430 match = ipw2100_match_buf(priv, (u8 *) status,
2431 sizeof(struct ipw2100_status),
2432 SEARCH_SNAPSHOT);
2433 if (match < SEARCH_SUCCESS)
2434 IPW_DEBUG_INFO("%s: DMA status match in Firmware at "
2435 "offset 0x%06X, length %d:\n",
2436 priv->net_dev->name, match,
2437 sizeof(struct ipw2100_status));
2438 else
2439 IPW_DEBUG_INFO("%s: No DMA status match in "
2440 "Firmware.\n", priv->net_dev->name);
2441
2442 printk_buf((u8 *) priv->status_queue.drv,
2443 sizeof(struct ipw2100_status) * RX_QUEUE_LENGTH);
2444#endif
2445
2446 priv->fatal_error = IPW2100_ERR_C3_CORRUPTION;
2447 priv->net_dev->stats.rx_errors++;
2448 schedule_reset(priv);
2449}
2450
2451static void isr_rx(struct ipw2100_priv *priv, int i,
2452 struct libipw_rx_stats *stats)
2453{
2454 struct net_device *dev = priv->net_dev;
2455 struct ipw2100_status *status = &priv->status_queue.drv[i];
2456 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2457
2458 IPW_DEBUG_RX("Handler...\n");
2459
2460 if (unlikely(status->frame_size > skb_tailroom(packet->skb))) {
2461 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2462 " Dropping.\n",
2463 dev->name,
2464 status->frame_size, skb_tailroom(packet->skb));
2465 dev->stats.rx_errors++;
2466 return;
2467 }
2468
2469 if (unlikely(!netif_running(dev))) {
2470 dev->stats.rx_errors++;
2471 priv->wstats.discard.misc++;
2472 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2473 return;
2474 }
2475
2476 if (unlikely(priv->ieee->iw_mode != IW_MODE_MONITOR &&
2477 !(priv->status & STATUS_ASSOCIATED))) {
2478 IPW_DEBUG_DROP("Dropping packet while not associated.\n");
2479 priv->wstats.discard.misc++;
2480 return;
2481 }
2482
2483 dma_unmap_single(&priv->pci_dev->dev, packet->dma_addr,
2484 sizeof(struct ipw2100_rx), DMA_FROM_DEVICE);
2485
2486 skb_put(packet->skb, status->frame_size);
2487
2488#ifdef IPW2100_RX_DEBUG
2489 /* Make a copy of the frame so we can dump it to the logs if
2490 * libipw_rx fails */
2491 skb_copy_from_linear_data(packet->skb, packet_data,
2492 min_t(u32, status->frame_size,
2493 IPW_RX_NIC_BUFFER_LENGTH));
2494#endif
2495
2496 if (!libipw_rx(priv->ieee, packet->skb, stats)) {
2497#ifdef IPW2100_RX_DEBUG
2498 IPW_DEBUG_DROP("%s: Non consumed packet:\n",
2499 dev->name);
2500 printk_buf(IPW_DL_DROP, packet_data, status->frame_size);
2501#endif
2502 dev->stats.rx_errors++;
2503
2504 /* libipw_rx failed, so it didn't free the SKB */
2505 dev_kfree_skb_any(packet->skb);
2506 packet->skb = NULL;
2507 }
2508
2509 /* We need to allocate a new SKB and attach it to the RDB. */
2510 if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2511 printk(KERN_WARNING DRV_NAME ": "
2512 "%s: Unable to allocate SKB onto RBD ring - disabling "
2513 "adapter.\n", dev->name);
2514 /* TODO: schedule adapter shutdown */
2515 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2516 }
2517
2518 /* Update the RDB entry */
2519 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2520}
2521
2522#ifdef CONFIG_IPW2100_MONITOR
2523
2524static void isr_rx_monitor(struct ipw2100_priv *priv, int i,
2525 struct libipw_rx_stats *stats)
2526{
2527 struct net_device *dev = priv->net_dev;
2528 struct ipw2100_status *status = &priv->status_queue.drv[i];
2529 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2530
2531 /* Magic struct that slots into the radiotap header -- no reason
2532 * to build this manually element by element, we can write it much
2533 * more efficiently than we can parse it. ORDER MATTERS HERE */
2534 struct ipw_rt_hdr {
2535 struct ieee80211_radiotap_header rt_hdr;
2536 s8 rt_dbmsignal; /* signal in dbM, kluged to signed */
2537 } *ipw_rt;
2538
2539 IPW_DEBUG_RX("Handler...\n");
2540
2541 if (unlikely(status->frame_size > skb_tailroom(packet->skb) -
2542 sizeof(struct ipw_rt_hdr))) {
2543 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2544 " Dropping.\n",
2545 dev->name,
2546 status->frame_size,
2547 skb_tailroom(packet->skb));
2548 dev->stats.rx_errors++;
2549 return;
2550 }
2551
2552 if (unlikely(!netif_running(dev))) {
2553 dev->stats.rx_errors++;
2554 priv->wstats.discard.misc++;
2555 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2556 return;
2557 }
2558
2559 if (unlikely(priv->config & CFG_CRC_CHECK &&
2560 status->flags & IPW_STATUS_FLAG_CRC_ERROR)) {
2561 IPW_DEBUG_RX("CRC error in packet. Dropping.\n");
2562 dev->stats.rx_errors++;
2563 return;
2564 }
2565
2566 dma_unmap_single(&priv->pci_dev->dev, packet->dma_addr,
2567 sizeof(struct ipw2100_rx), DMA_FROM_DEVICE);
2568 memmove(packet->skb->data + sizeof(struct ipw_rt_hdr),
2569 packet->skb->data, status->frame_size);
2570
2571 ipw_rt = (struct ipw_rt_hdr *) packet->skb->data;
2572
2573 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
2574 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */
2575 ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct ipw_rt_hdr)); /* total hdr+data */
2576
2577 ipw_rt->rt_hdr.it_present = cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
2578
2579 ipw_rt->rt_dbmsignal = status->rssi + IPW2100_RSSI_TO_DBM;
2580
2581 skb_put(packet->skb, status->frame_size + sizeof(struct ipw_rt_hdr));
2582
2583 if (!libipw_rx(priv->ieee, packet->skb, stats)) {
2584 dev->stats.rx_errors++;
2585
2586 /* libipw_rx failed, so it didn't free the SKB */
2587 dev_kfree_skb_any(packet->skb);
2588 packet->skb = NULL;
2589 }
2590
2591 /* We need to allocate a new SKB and attach it to the RDB. */
2592 if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2593 IPW_DEBUG_WARNING(
2594 "%s: Unable to allocate SKB onto RBD ring - disabling "
2595 "adapter.\n", dev->name);
2596 /* TODO: schedule adapter shutdown */
2597 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2598 }
2599
2600 /* Update the RDB entry */
2601 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2602}
2603
2604#endif
2605
2606static int ipw2100_corruption_check(struct ipw2100_priv *priv, int i)
2607{
2608 struct ipw2100_status *status = &priv->status_queue.drv[i];
2609 struct ipw2100_rx *u = priv->rx_buffers[i].rxp;
2610 u16 frame_type = status->status_fields & STATUS_TYPE_MASK;
2611
2612 switch (frame_type) {
2613 case COMMAND_STATUS_VAL:
2614 return (status->frame_size != sizeof(u->rx_data.command));
2615 case STATUS_CHANGE_VAL:
2616 return (status->frame_size != sizeof(u->rx_data.status));
2617 case HOST_NOTIFICATION_VAL:
2618 return (status->frame_size < sizeof(u->rx_data.notification));
2619 case P80211_DATA_VAL:
2620 case P8023_DATA_VAL:
2621#ifdef CONFIG_IPW2100_MONITOR
2622 return 0;
2623#else
2624 switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) {
2625 case IEEE80211_FTYPE_MGMT:
2626 case IEEE80211_FTYPE_CTL:
2627 return 0;
2628 case IEEE80211_FTYPE_DATA:
2629 return (status->frame_size >
2630 IPW_MAX_802_11_PAYLOAD_LENGTH);
2631 }
2632#endif
2633 }
2634
2635 return 1;
2636}
2637
2638/*
2639 * ipw2100 interrupts are disabled at this point, and the ISR
2640 * is the only code that calls this method. So, we do not need
2641 * to play with any locks.
2642 *
2643 * RX Queue works as follows:
2644 *
2645 * Read index - firmware places packet in entry identified by the
2646 * Read index and advances Read index. In this manner,
2647 * Read index will always point to the next packet to
2648 * be filled--but not yet valid.
2649 *
2650 * Write index - driver fills this entry with an unused RBD entry.
2651 * This entry has not filled by the firmware yet.
2652 *
2653 * In between the W and R indexes are the RBDs that have been received
2654 * but not yet processed.
2655 *
2656 * The process of handling packets will start at WRITE + 1 and advance
2657 * until it reaches the READ index.
2658 *
2659 * The WRITE index is cached in the variable 'priv->rx_queue.next'.
2660 *
2661 */
2662static void __ipw2100_rx_process(struct ipw2100_priv *priv)
2663{
2664 struct ipw2100_bd_queue *rxq = &priv->rx_queue;
2665 struct ipw2100_status_queue *sq = &priv->status_queue;
2666 struct ipw2100_rx_packet *packet;
2667 u16 frame_type;
2668 u32 r, w, i, s;
2669 struct ipw2100_rx *u;
2670 struct libipw_rx_stats stats = {
2671 .mac_time = jiffies,
2672 };
2673
2674 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_READ_INDEX, &r);
2675 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, &w);
2676
2677 if (r >= rxq->entries) {
2678 IPW_DEBUG_RX("exit - bad read index\n");
2679 return;
2680 }
2681
2682 i = (rxq->next + 1) % rxq->entries;
2683 s = i;
2684 while (i != r) {
2685 /* IPW_DEBUG_RX("r = %d : w = %d : processing = %d\n",
2686 r, rxq->next, i); */
2687
2688 packet = &priv->rx_buffers[i];
2689
2690 /* Sync the DMA for the RX buffer so CPU is sure to get
2691 * the correct values */
2692 dma_sync_single_for_cpu(&priv->pci_dev->dev, packet->dma_addr,
2693 sizeof(struct ipw2100_rx),
2694 DMA_FROM_DEVICE);
2695
2696 if (unlikely(ipw2100_corruption_check(priv, i))) {
2697 ipw2100_corruption_detected(priv, i);
2698 goto increment;
2699 }
2700
2701 u = packet->rxp;
2702 frame_type = sq->drv[i].status_fields & STATUS_TYPE_MASK;
2703 stats.rssi = sq->drv[i].rssi + IPW2100_RSSI_TO_DBM;
2704 stats.len = sq->drv[i].frame_size;
2705
2706 stats.mask = 0;
2707 if (stats.rssi != 0)
2708 stats.mask |= LIBIPW_STATMASK_RSSI;
2709 stats.freq = LIBIPW_24GHZ_BAND;
2710
2711 IPW_DEBUG_RX("%s: '%s' frame type received (%d).\n",
2712 priv->net_dev->name, frame_types[frame_type],
2713 stats.len);
2714
2715 switch (frame_type) {
2716 case COMMAND_STATUS_VAL:
2717 /* Reset Rx watchdog */
2718 isr_rx_complete_command(priv, &u->rx_data.command);
2719 break;
2720
2721 case STATUS_CHANGE_VAL:
2722 isr_status_change(priv, u->rx_data.status);
2723 break;
2724
2725 case P80211_DATA_VAL:
2726 case P8023_DATA_VAL:
2727#ifdef CONFIG_IPW2100_MONITOR
2728 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
2729 isr_rx_monitor(priv, i, &stats);
2730 break;
2731 }
2732#endif
2733 if (stats.len < sizeof(struct libipw_hdr_3addr))
2734 break;
2735 switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) {
2736 case IEEE80211_FTYPE_MGMT:
2737 libipw_rx_mgt(priv->ieee,
2738 &u->rx_data.header, &stats);
2739 break;
2740
2741 case IEEE80211_FTYPE_CTL:
2742 break;
2743
2744 case IEEE80211_FTYPE_DATA:
2745 isr_rx(priv, i, &stats);
2746 break;
2747
2748 }
2749 break;
2750 }
2751
2752 increment:
2753 /* clear status field associated with this RBD */
2754 rxq->drv[i].status.info.field = 0;
2755
2756 i = (i + 1) % rxq->entries;
2757 }
2758
2759 if (i != s) {
2760 /* backtrack one entry, wrapping to end if at 0 */
2761 rxq->next = (i ? i : rxq->entries) - 1;
2762
2763 write_register(priv->net_dev,
2764 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, rxq->next);
2765 }
2766}
2767
2768/*
2769 * __ipw2100_tx_process
2770 *
2771 * This routine will determine whether the next packet on
2772 * the fw_pend_list has been processed by the firmware yet.
2773 *
2774 * If not, then it does nothing and returns.
2775 *
2776 * If so, then it removes the item from the fw_pend_list, frees
2777 * any associated storage, and places the item back on the
2778 * free list of its source (either msg_free_list or tx_free_list)
2779 *
2780 * TX Queue works as follows:
2781 *
2782 * Read index - points to the next TBD that the firmware will
2783 * process. The firmware will read the data, and once
2784 * done processing, it will advance the Read index.
2785 *
2786 * Write index - driver fills this entry with an constructed TBD
2787 * entry. The Write index is not advanced until the
2788 * packet has been configured.
2789 *
2790 * In between the W and R indexes are the TBDs that have NOT been
2791 * processed. Lagging behind the R index are packets that have
2792 * been processed but have not been freed by the driver.
2793 *
2794 * In order to free old storage, an internal index will be maintained
2795 * that points to the next packet to be freed. When all used
2796 * packets have been freed, the oldest index will be the same as the
2797 * firmware's read index.
2798 *
2799 * The OLDEST index is cached in the variable 'priv->tx_queue.oldest'
2800 *
2801 * Because the TBD structure can not contain arbitrary data, the
2802 * driver must keep an internal queue of cached allocations such that
2803 * it can put that data back into the tx_free_list and msg_free_list
2804 * for use by future command and data packets.
2805 *
2806 */
2807static int __ipw2100_tx_process(struct ipw2100_priv *priv)
2808{
2809 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2810 struct ipw2100_bd *tbd;
2811 struct list_head *element;
2812 struct ipw2100_tx_packet *packet;
2813 int descriptors_used;
2814 int e, i;
2815 u32 r, w, frag_num = 0;
2816
2817 if (list_empty(&priv->fw_pend_list))
2818 return 0;
2819
2820 element = priv->fw_pend_list.next;
2821
2822 packet = list_entry(element, struct ipw2100_tx_packet, list);
2823 tbd = &txq->drv[packet->index];
2824
2825 /* Determine how many TBD entries must be finished... */
2826 switch (packet->type) {
2827 case COMMAND:
2828 /* COMMAND uses only one slot; don't advance */
2829 descriptors_used = 1;
2830 e = txq->oldest;
2831 break;
2832
2833 case DATA:
2834 /* DATA uses two slots; advance and loop position. */
2835 descriptors_used = tbd->num_fragments;
2836 frag_num = tbd->num_fragments - 1;
2837 e = txq->oldest + frag_num;
2838 e %= txq->entries;
2839 break;
2840
2841 default:
2842 printk(KERN_WARNING DRV_NAME ": %s: Bad fw_pend_list entry!\n",
2843 priv->net_dev->name);
2844 return 0;
2845 }
2846
2847 /* if the last TBD is not done by NIC yet, then packet is
2848 * not ready to be released.
2849 *
2850 */
2851 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
2852 &r);
2853 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
2854 &w);
2855 if (w != txq->next)
2856 printk(KERN_WARNING DRV_NAME ": %s: write index mismatch\n",
2857 priv->net_dev->name);
2858
2859 /*
2860 * txq->next is the index of the last packet written txq->oldest is
2861 * the index of the r is the index of the next packet to be read by
2862 * firmware
2863 */
2864
2865 /*
2866 * Quick graphic to help you visualize the following
2867 * if / else statement
2868 *
2869 * ===>| s---->|===============
2870 * e>|
2871 * | a | b | c | d | e | f | g | h | i | j | k | l
2872 * r---->|
2873 * w
2874 *
2875 * w - updated by driver
2876 * r - updated by firmware
2877 * s - start of oldest BD entry (txq->oldest)
2878 * e - end of oldest BD entry
2879 *
2880 */
2881 if (!((r <= w && (e < r || e >= w)) || (e < r && e >= w))) {
2882 IPW_DEBUG_TX("exit - no processed packets ready to release.\n");
2883 return 0;
2884 }
2885
2886 list_del(element);
2887 DEC_STAT(&priv->fw_pend_stat);
2888
2889#ifdef CONFIG_IPW2100_DEBUG
2890 {
2891 i = txq->oldest;
2892 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2893 &txq->drv[i],
2894 (u32) (txq->nic + i * sizeof(struct ipw2100_bd)),
2895 txq->drv[i].host_addr, txq->drv[i].buf_length);
2896
2897 if (packet->type == DATA) {
2898 i = (i + 1) % txq->entries;
2899
2900 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2901 &txq->drv[i],
2902 (u32) (txq->nic + i *
2903 sizeof(struct ipw2100_bd)),
2904 (u32) txq->drv[i].host_addr,
2905 txq->drv[i].buf_length);
2906 }
2907 }
2908#endif
2909
2910 switch (packet->type) {
2911 case DATA:
2912 if (txq->drv[txq->oldest].status.info.fields.txType != 0)
2913 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2914 "Expecting DATA TBD but pulled "
2915 "something else: ids %d=%d.\n",
2916 priv->net_dev->name, txq->oldest, packet->index);
2917
2918 /* DATA packet; we have to unmap and free the SKB */
2919 for (i = 0; i < frag_num; i++) {
2920 tbd = &txq->drv[(packet->index + 1 + i) % txq->entries];
2921
2922 IPW_DEBUG_TX("TX%d P=%08x L=%d\n",
2923 (packet->index + 1 + i) % txq->entries,
2924 tbd->host_addr, tbd->buf_length);
2925
2926 dma_unmap_single(&priv->pci_dev->dev, tbd->host_addr,
2927 tbd->buf_length, DMA_TO_DEVICE);
2928 }
2929
2930 libipw_txb_free(packet->info.d_struct.txb);
2931 packet->info.d_struct.txb = NULL;
2932
2933 list_add_tail(element, &priv->tx_free_list);
2934 INC_STAT(&priv->tx_free_stat);
2935
2936 /* We have a free slot in the Tx queue, so wake up the
2937 * transmit layer if it is stopped. */
2938 if (priv->status & STATUS_ASSOCIATED)
2939 netif_wake_queue(priv->net_dev);
2940
2941 /* A packet was processed by the hardware, so update the
2942 * watchdog */
2943 netif_trans_update(priv->net_dev);
2944
2945 break;
2946
2947 case COMMAND:
2948 if (txq->drv[txq->oldest].status.info.fields.txType != 1)
2949 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2950 "Expecting COMMAND TBD but pulled "
2951 "something else: ids %d=%d.\n",
2952 priv->net_dev->name, txq->oldest, packet->index);
2953
2954#ifdef CONFIG_IPW2100_DEBUG
2955 if (packet->info.c_struct.cmd->host_command_reg <
2956 ARRAY_SIZE(command_types))
2957 IPW_DEBUG_TX("Command '%s (%d)' processed: %d.\n",
2958 command_types[packet->info.c_struct.cmd->
2959 host_command_reg],
2960 packet->info.c_struct.cmd->
2961 host_command_reg,
2962 packet->info.c_struct.cmd->cmd_status_reg);
2963#endif
2964
2965 list_add_tail(element, &priv->msg_free_list);
2966 INC_STAT(&priv->msg_free_stat);
2967 break;
2968 }
2969
2970 /* advance oldest used TBD pointer to start of next entry */
2971 txq->oldest = (e + 1) % txq->entries;
2972 /* increase available TBDs number */
2973 txq->available += descriptors_used;
2974 SET_STAT(&priv->txq_stat, txq->available);
2975
2976 IPW_DEBUG_TX("packet latency (send to process) %ld jiffies\n",
2977 jiffies - packet->jiffy_start);
2978
2979 return (!list_empty(&priv->fw_pend_list));
2980}
2981
2982static inline void __ipw2100_tx_complete(struct ipw2100_priv *priv)
2983{
2984 int i = 0;
2985
2986 while (__ipw2100_tx_process(priv) && i < 200)
2987 i++;
2988
2989 if (i == 200) {
2990 printk(KERN_WARNING DRV_NAME ": "
2991 "%s: Driver is running slow (%d iters).\n",
2992 priv->net_dev->name, i);
2993 }
2994}
2995
2996static void ipw2100_tx_send_commands(struct ipw2100_priv *priv)
2997{
2998 struct list_head *element;
2999 struct ipw2100_tx_packet *packet;
3000 struct ipw2100_bd_queue *txq = &priv->tx_queue;
3001 struct ipw2100_bd *tbd;
3002 int next = txq->next;
3003
3004 while (!list_empty(&priv->msg_pend_list)) {
3005 /* if there isn't enough space in TBD queue, then
3006 * don't stuff a new one in.
3007 * NOTE: 3 are needed as a command will take one,
3008 * and there is a minimum of 2 that must be
3009 * maintained between the r and w indexes
3010 */
3011 if (txq->available <= 3) {
3012 IPW_DEBUG_TX("no room in tx_queue\n");
3013 break;
3014 }
3015
3016 element = priv->msg_pend_list.next;
3017 list_del(element);
3018 DEC_STAT(&priv->msg_pend_stat);
3019
3020 packet = list_entry(element, struct ipw2100_tx_packet, list);
3021
3022 IPW_DEBUG_TX("using TBD at virt=%p, phys=%04X\n",
3023 &txq->drv[txq->next],
3024 (u32) (txq->nic + txq->next *
3025 sizeof(struct ipw2100_bd)));
3026
3027 packet->index = txq->next;
3028
3029 tbd = &txq->drv[txq->next];
3030
3031 /* initialize TBD */
3032 tbd->host_addr = packet->info.c_struct.cmd_phys;
3033 tbd->buf_length = sizeof(struct ipw2100_cmd_header);
3034 /* not marking number of fragments causes problems
3035 * with f/w debug version */
3036 tbd->num_fragments = 1;
3037 tbd->status.info.field =
3038 IPW_BD_STATUS_TX_FRAME_COMMAND |
3039 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
3040
3041 /* update TBD queue counters */
3042 txq->next++;
3043 txq->next %= txq->entries;
3044 txq->available--;
3045 DEC_STAT(&priv->txq_stat);
3046
3047 list_add_tail(element, &priv->fw_pend_list);
3048 INC_STAT(&priv->fw_pend_stat);
3049 }
3050
3051 if (txq->next != next) {
3052 /* kick off the DMA by notifying firmware the
3053 * write index has moved; make sure TBD stores are sync'd */
3054 wmb();
3055 write_register(priv->net_dev,
3056 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3057 txq->next);
3058 }
3059}
3060
3061/*
3062 * ipw2100_tx_send_data
3063 *
3064 */
3065static void ipw2100_tx_send_data(struct ipw2100_priv *priv)
3066{
3067 struct list_head *element;
3068 struct ipw2100_tx_packet *packet;
3069 struct ipw2100_bd_queue *txq = &priv->tx_queue;
3070 struct ipw2100_bd *tbd;
3071 int next = txq->next;
3072 int i = 0;
3073 struct ipw2100_data_header *ipw_hdr;
3074 struct libipw_hdr_3addr *hdr;
3075
3076 while (!list_empty(&priv->tx_pend_list)) {
3077 /* if there isn't enough space in TBD queue, then
3078 * don't stuff a new one in.
3079 * NOTE: 4 are needed as a data will take two,
3080 * and there is a minimum of 2 that must be
3081 * maintained between the r and w indexes
3082 */
3083 element = priv->tx_pend_list.next;
3084 packet = list_entry(element, struct ipw2100_tx_packet, list);
3085
3086 if (unlikely(1 + packet->info.d_struct.txb->nr_frags >
3087 IPW_MAX_BDS)) {
3088 /* TODO: Support merging buffers if more than
3089 * IPW_MAX_BDS are used */
3090 IPW_DEBUG_INFO("%s: Maximum BD threshold exceeded. "
3091 "Increase fragmentation level.\n",
3092 priv->net_dev->name);
3093 }
3094
3095 if (txq->available <= 3 + packet->info.d_struct.txb->nr_frags) {
3096 IPW_DEBUG_TX("no room in tx_queue\n");
3097 break;
3098 }
3099
3100 list_del(element);
3101 DEC_STAT(&priv->tx_pend_stat);
3102
3103 tbd = &txq->drv[txq->next];
3104
3105 packet->index = txq->next;
3106
3107 ipw_hdr = packet->info.d_struct.data;
3108 hdr = (struct libipw_hdr_3addr *)packet->info.d_struct.txb->
3109 fragments[0]->data;
3110
3111 if (priv->ieee->iw_mode == IW_MODE_INFRA) {
3112 /* To DS: Addr1 = BSSID, Addr2 = SA,
3113 Addr3 = DA */
3114 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3115 memcpy(ipw_hdr->dst_addr, hdr->addr3, ETH_ALEN);
3116 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
3117 /* not From/To DS: Addr1 = DA, Addr2 = SA,
3118 Addr3 = BSSID */
3119 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3120 memcpy(ipw_hdr->dst_addr, hdr->addr1, ETH_ALEN);
3121 }
3122
3123 ipw_hdr->host_command_reg = SEND;
3124 ipw_hdr->host_command_reg1 = 0;
3125
3126 /* For now we only support host based encryption */
3127 ipw_hdr->needs_encryption = 0;
3128 ipw_hdr->encrypted = packet->info.d_struct.txb->encrypted;
3129 if (packet->info.d_struct.txb->nr_frags > 1)
3130 ipw_hdr->fragment_size =
3131 packet->info.d_struct.txb->frag_size -
3132 LIBIPW_3ADDR_LEN;
3133 else
3134 ipw_hdr->fragment_size = 0;
3135
3136 tbd->host_addr = packet->info.d_struct.data_phys;
3137 tbd->buf_length = sizeof(struct ipw2100_data_header);
3138 tbd->num_fragments = 1 + packet->info.d_struct.txb->nr_frags;
3139 tbd->status.info.field =
3140 IPW_BD_STATUS_TX_FRAME_802_3 |
3141 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3142 txq->next++;
3143 txq->next %= txq->entries;
3144
3145 IPW_DEBUG_TX("data header tbd TX%d P=%08x L=%d\n",
3146 packet->index, tbd->host_addr, tbd->buf_length);
3147#ifdef CONFIG_IPW2100_DEBUG
3148 if (packet->info.d_struct.txb->nr_frags > 1)
3149 IPW_DEBUG_FRAG("fragment Tx: %d frames\n",
3150 packet->info.d_struct.txb->nr_frags);
3151#endif
3152
3153 for (i = 0; i < packet->info.d_struct.txb->nr_frags; i++) {
3154 tbd = &txq->drv[txq->next];
3155 if (i == packet->info.d_struct.txb->nr_frags - 1)
3156 tbd->status.info.field =
3157 IPW_BD_STATUS_TX_FRAME_802_3 |
3158 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
3159 else
3160 tbd->status.info.field =
3161 IPW_BD_STATUS_TX_FRAME_802_3 |
3162 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3163
3164 tbd->buf_length = packet->info.d_struct.txb->
3165 fragments[i]->len - LIBIPW_3ADDR_LEN;
3166
3167 tbd->host_addr = dma_map_single(&priv->pci_dev->dev,
3168 packet->info.d_struct.
3169 txb->fragments[i]->data +
3170 LIBIPW_3ADDR_LEN,
3171 tbd->buf_length,
3172 DMA_TO_DEVICE);
3173 if (dma_mapping_error(&priv->pci_dev->dev, tbd->host_addr)) {
3174 IPW_DEBUG_TX("dma mapping error\n");
3175 break;
3176 }
3177
3178 IPW_DEBUG_TX("data frag tbd TX%d P=%08x L=%d\n",
3179 txq->next, tbd->host_addr,
3180 tbd->buf_length);
3181
3182 dma_sync_single_for_device(&priv->pci_dev->dev,
3183 tbd->host_addr,
3184 tbd->buf_length,
3185 DMA_TO_DEVICE);
3186
3187 txq->next++;
3188 txq->next %= txq->entries;
3189 }
3190
3191 txq->available -= 1 + packet->info.d_struct.txb->nr_frags;
3192 SET_STAT(&priv->txq_stat, txq->available);
3193
3194 list_add_tail(element, &priv->fw_pend_list);
3195 INC_STAT(&priv->fw_pend_stat);
3196 }
3197
3198 if (txq->next != next) {
3199 /* kick off the DMA by notifying firmware the
3200 * write index has moved; make sure TBD stores are sync'd */
3201 write_register(priv->net_dev,
3202 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3203 txq->next);
3204 }
3205}
3206
3207static void ipw2100_irq_tasklet(unsigned long data)
3208{
3209 struct ipw2100_priv *priv = (struct ipw2100_priv *)data;
3210 struct net_device *dev = priv->net_dev;
3211 unsigned long flags;
3212 u32 inta, tmp;
3213
3214 spin_lock_irqsave(&priv->low_lock, flags);
3215 ipw2100_disable_interrupts(priv);
3216
3217 read_register(dev, IPW_REG_INTA, &inta);
3218
3219 IPW_DEBUG_ISR("enter - INTA: 0x%08lX\n",
3220 (unsigned long)inta & IPW_INTERRUPT_MASK);
3221
3222 priv->in_isr++;
3223 priv->interrupts++;
3224
3225 /* We do not loop and keep polling for more interrupts as this
3226 * is frowned upon and doesn't play nicely with other potentially
3227 * chained IRQs */
3228 IPW_DEBUG_ISR("INTA: 0x%08lX\n",
3229 (unsigned long)inta & IPW_INTERRUPT_MASK);
3230
3231 if (inta & IPW2100_INTA_FATAL_ERROR) {
3232 printk(KERN_WARNING DRV_NAME
3233 ": Fatal interrupt. Scheduling firmware restart.\n");
3234 priv->inta_other++;
3235 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FATAL_ERROR);
3236
3237 read_nic_dword(dev, IPW_NIC_FATAL_ERROR, &priv->fatal_error);
3238 IPW_DEBUG_INFO("%s: Fatal error value: 0x%08X\n",
3239 priv->net_dev->name, priv->fatal_error);
3240
3241 read_nic_dword(dev, IPW_ERROR_ADDR(priv->fatal_error), &tmp);
3242 IPW_DEBUG_INFO("%s: Fatal error address value: 0x%08X\n",
3243 priv->net_dev->name, tmp);
3244
3245 /* Wake up any sleeping jobs */
3246 schedule_reset(priv);
3247 }
3248
3249 if (inta & IPW2100_INTA_PARITY_ERROR) {
3250 printk(KERN_ERR DRV_NAME
3251 ": ***** PARITY ERROR INTERRUPT !!!!\n");
3252 priv->inta_other++;
3253 write_register(dev, IPW_REG_INTA, IPW2100_INTA_PARITY_ERROR);
3254 }
3255
3256 if (inta & IPW2100_INTA_RX_TRANSFER) {
3257 IPW_DEBUG_ISR("RX interrupt\n");
3258
3259 priv->rx_interrupts++;
3260
3261 write_register(dev, IPW_REG_INTA, IPW2100_INTA_RX_TRANSFER);
3262
3263 __ipw2100_rx_process(priv);
3264 __ipw2100_tx_complete(priv);
3265 }
3266
3267 if (inta & IPW2100_INTA_TX_TRANSFER) {
3268 IPW_DEBUG_ISR("TX interrupt\n");
3269
3270 priv->tx_interrupts++;
3271
3272 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_TRANSFER);
3273
3274 __ipw2100_tx_complete(priv);
3275 ipw2100_tx_send_commands(priv);
3276 ipw2100_tx_send_data(priv);
3277 }
3278
3279 if (inta & IPW2100_INTA_TX_COMPLETE) {
3280 IPW_DEBUG_ISR("TX complete\n");
3281 priv->inta_other++;
3282 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_COMPLETE);
3283
3284 __ipw2100_tx_complete(priv);
3285 }
3286
3287 if (inta & IPW2100_INTA_EVENT_INTERRUPT) {
3288 /* ipw2100_handle_event(dev); */
3289 priv->inta_other++;
3290 write_register(dev, IPW_REG_INTA, IPW2100_INTA_EVENT_INTERRUPT);
3291 }
3292
3293 if (inta & IPW2100_INTA_FW_INIT_DONE) {
3294 IPW_DEBUG_ISR("FW init done interrupt\n");
3295 priv->inta_other++;
3296
3297 read_register(dev, IPW_REG_INTA, &tmp);
3298 if (tmp & (IPW2100_INTA_FATAL_ERROR |
3299 IPW2100_INTA_PARITY_ERROR)) {
3300 write_register(dev, IPW_REG_INTA,
3301 IPW2100_INTA_FATAL_ERROR |
3302 IPW2100_INTA_PARITY_ERROR);
3303 }
3304
3305 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FW_INIT_DONE);
3306 }
3307
3308 if (inta & IPW2100_INTA_STATUS_CHANGE) {
3309 IPW_DEBUG_ISR("Status change interrupt\n");
3310 priv->inta_other++;
3311 write_register(dev, IPW_REG_INTA, IPW2100_INTA_STATUS_CHANGE);
3312 }
3313
3314 if (inta & IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE) {
3315 IPW_DEBUG_ISR("slave host mode interrupt\n");
3316 priv->inta_other++;
3317 write_register(dev, IPW_REG_INTA,
3318 IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE);
3319 }
3320
3321 priv->in_isr--;
3322 ipw2100_enable_interrupts(priv);
3323
3324 spin_unlock_irqrestore(&priv->low_lock, flags);
3325
3326 IPW_DEBUG_ISR("exit\n");
3327}
3328
3329static irqreturn_t ipw2100_interrupt(int irq, void *data)
3330{
3331 struct ipw2100_priv *priv = data;
3332 u32 inta, inta_mask;
3333
3334 if (!data)
3335 return IRQ_NONE;
3336
3337 spin_lock(&priv->low_lock);
3338
3339 /* We check to see if we should be ignoring interrupts before
3340 * we touch the hardware. During ucode load if we try and handle
3341 * an interrupt we can cause keyboard problems as well as cause
3342 * the ucode to fail to initialize */
3343 if (!(priv->status & STATUS_INT_ENABLED)) {
3344 /* Shared IRQ */
3345 goto none;
3346 }
3347
3348 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
3349 read_register(priv->net_dev, IPW_REG_INTA, &inta);
3350
3351 if (inta == 0xFFFFFFFF) {
3352 /* Hardware disappeared */
3353 printk(KERN_WARNING DRV_NAME ": IRQ INTA == 0xFFFFFFFF\n");
3354 goto none;
3355 }
3356
3357 inta &= IPW_INTERRUPT_MASK;
3358
3359 if (!(inta & inta_mask)) {
3360 /* Shared interrupt */
3361 goto none;
3362 }
3363
3364 /* We disable the hardware interrupt here just to prevent unneeded
3365 * calls to be made. We disable this again within the actual
3366 * work tasklet, so if another part of the code re-enables the
3367 * interrupt, that is fine */
3368 ipw2100_disable_interrupts(priv);
3369
3370 tasklet_schedule(&priv->irq_tasklet);
3371 spin_unlock(&priv->low_lock);
3372
3373 return IRQ_HANDLED;
3374 none:
3375 spin_unlock(&priv->low_lock);
3376 return IRQ_NONE;
3377}
3378
3379static netdev_tx_t ipw2100_tx(struct libipw_txb *txb,
3380 struct net_device *dev, int pri)
3381{
3382 struct ipw2100_priv *priv = libipw_priv(dev);
3383 struct list_head *element;
3384 struct ipw2100_tx_packet *packet;
3385 unsigned long flags;
3386
3387 spin_lock_irqsave(&priv->low_lock, flags);
3388
3389 if (!(priv->status & STATUS_ASSOCIATED)) {
3390 IPW_DEBUG_INFO("Can not transmit when not connected.\n");
3391 priv->net_dev->stats.tx_carrier_errors++;
3392 netif_stop_queue(dev);
3393 goto fail_unlock;
3394 }
3395
3396 if (list_empty(&priv->tx_free_list))
3397 goto fail_unlock;
3398
3399 element = priv->tx_free_list.next;
3400 packet = list_entry(element, struct ipw2100_tx_packet, list);
3401
3402 packet->info.d_struct.txb = txb;
3403
3404 IPW_DEBUG_TX("Sending fragment (%d bytes):\n", txb->fragments[0]->len);
3405 printk_buf(IPW_DL_TX, txb->fragments[0]->data, txb->fragments[0]->len);
3406
3407 packet->jiffy_start = jiffies;
3408
3409 list_del(element);
3410 DEC_STAT(&priv->tx_free_stat);
3411
3412 list_add_tail(element, &priv->tx_pend_list);
3413 INC_STAT(&priv->tx_pend_stat);
3414
3415 ipw2100_tx_send_data(priv);
3416
3417 spin_unlock_irqrestore(&priv->low_lock, flags);
3418 return NETDEV_TX_OK;
3419
3420fail_unlock:
3421 netif_stop_queue(dev);
3422 spin_unlock_irqrestore(&priv->low_lock, flags);
3423 return NETDEV_TX_BUSY;
3424}
3425
3426static int ipw2100_msg_allocate(struct ipw2100_priv *priv)
3427{
3428 int i, j, err = -EINVAL;
3429 void *v;
3430 dma_addr_t p;
3431
3432 priv->msg_buffers =
3433 kmalloc_array(IPW_COMMAND_POOL_SIZE,
3434 sizeof(struct ipw2100_tx_packet),
3435 GFP_KERNEL);
3436 if (!priv->msg_buffers)
3437 return -ENOMEM;
3438
3439 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3440 v = dma_alloc_coherent(&priv->pci_dev->dev,
3441 sizeof(struct ipw2100_cmd_header), &p,
3442 GFP_KERNEL);
3443 if (!v) {
3444 printk(KERN_ERR DRV_NAME ": "
3445 "%s: PCI alloc failed for msg "
3446 "buffers.\n", priv->net_dev->name);
3447 err = -ENOMEM;
3448 break;
3449 }
3450
3451 priv->msg_buffers[i].type = COMMAND;
3452 priv->msg_buffers[i].info.c_struct.cmd =
3453 (struct ipw2100_cmd_header *)v;
3454 priv->msg_buffers[i].info.c_struct.cmd_phys = p;
3455 }
3456
3457 if (i == IPW_COMMAND_POOL_SIZE)
3458 return 0;
3459
3460 for (j = 0; j < i; j++) {
3461 dma_free_coherent(&priv->pci_dev->dev,
3462 sizeof(struct ipw2100_cmd_header),
3463 priv->msg_buffers[j].info.c_struct.cmd,
3464 priv->msg_buffers[j].info.c_struct.cmd_phys);
3465 }
3466
3467 kfree(priv->msg_buffers);
3468 priv->msg_buffers = NULL;
3469
3470 return err;
3471}
3472
3473static int ipw2100_msg_initialize(struct ipw2100_priv *priv)
3474{
3475 int i;
3476
3477 INIT_LIST_HEAD(&priv->msg_free_list);
3478 INIT_LIST_HEAD(&priv->msg_pend_list);
3479
3480 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++)
3481 list_add_tail(&priv->msg_buffers[i].list, &priv->msg_free_list);
3482 SET_STAT(&priv->msg_free_stat, i);
3483
3484 return 0;
3485}
3486
3487static void ipw2100_msg_free(struct ipw2100_priv *priv)
3488{
3489 int i;
3490
3491 if (!priv->msg_buffers)
3492 return;
3493
3494 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3495 dma_free_coherent(&priv->pci_dev->dev,
3496 sizeof(struct ipw2100_cmd_header),
3497 priv->msg_buffers[i].info.c_struct.cmd,
3498 priv->msg_buffers[i].info.c_struct.cmd_phys);
3499 }
3500
3501 kfree(priv->msg_buffers);
3502 priv->msg_buffers = NULL;
3503}
3504
3505static ssize_t show_pci(struct device *d, struct device_attribute *attr,
3506 char *buf)
3507{
3508 struct pci_dev *pci_dev = to_pci_dev(d);
3509 char *out = buf;
3510 int i, j;
3511 u32 val;
3512
3513 for (i = 0; i < 16; i++) {
3514 out += sprintf(out, "[%08X] ", i * 16);
3515 for (j = 0; j < 16; j += 4) {
3516 pci_read_config_dword(pci_dev, i * 16 + j, &val);
3517 out += sprintf(out, "%08X ", val);
3518 }
3519 out += sprintf(out, "\n");
3520 }
3521
3522 return out - buf;
3523}
3524
3525static DEVICE_ATTR(pci, 0444, show_pci, NULL);
3526
3527static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
3528 char *buf)
3529{
3530 struct ipw2100_priv *p = dev_get_drvdata(d);
3531 return sprintf(buf, "0x%08x\n", (int)p->config);
3532}
3533
3534static DEVICE_ATTR(cfg, 0444, show_cfg, NULL);
3535
3536static ssize_t show_status(struct device *d, struct device_attribute *attr,
3537 char *buf)
3538{
3539 struct ipw2100_priv *p = dev_get_drvdata(d);
3540 return sprintf(buf, "0x%08x\n", (int)p->status);
3541}
3542
3543static DEVICE_ATTR(status, 0444, show_status, NULL);
3544
3545static ssize_t show_capability(struct device *d, struct device_attribute *attr,
3546 char *buf)
3547{
3548 struct ipw2100_priv *p = dev_get_drvdata(d);
3549 return sprintf(buf, "0x%08x\n", (int)p->capability);
3550}
3551
3552static DEVICE_ATTR(capability, 0444, show_capability, NULL);
3553
3554#define IPW2100_REG(x) { IPW_ ##x, #x }
3555static const struct {
3556 u32 addr;
3557 const char *name;
3558} hw_data[] = {
3559IPW2100_REG(REG_GP_CNTRL),
3560 IPW2100_REG(REG_GPIO),
3561 IPW2100_REG(REG_INTA),
3562 IPW2100_REG(REG_INTA_MASK), IPW2100_REG(REG_RESET_REG),};
3563#define IPW2100_NIC(x, s) { x, #x, s }
3564static const struct {
3565 u32 addr;
3566 const char *name;
3567 size_t size;
3568} nic_data[] = {
3569IPW2100_NIC(IPW2100_CONTROL_REG, 2),
3570 IPW2100_NIC(0x210014, 1), IPW2100_NIC(0x210000, 1),};
3571#define IPW2100_ORD(x, d) { IPW_ORD_ ##x, #x, d }
3572static const struct {
3573 u8 index;
3574 const char *name;
3575 const char *desc;
3576} ord_data[] = {
3577IPW2100_ORD(STAT_TX_HOST_REQUESTS, "requested Host Tx's (MSDU)"),
3578 IPW2100_ORD(STAT_TX_HOST_COMPLETE,
3579 "successful Host Tx's (MSDU)"),
3580 IPW2100_ORD(STAT_TX_DIR_DATA,
3581 "successful Directed Tx's (MSDU)"),
3582 IPW2100_ORD(STAT_TX_DIR_DATA1,
3583 "successful Directed Tx's (MSDU) @ 1MB"),
3584 IPW2100_ORD(STAT_TX_DIR_DATA2,
3585 "successful Directed Tx's (MSDU) @ 2MB"),
3586 IPW2100_ORD(STAT_TX_DIR_DATA5_5,
3587 "successful Directed Tx's (MSDU) @ 5_5MB"),
3588 IPW2100_ORD(STAT_TX_DIR_DATA11,
3589 "successful Directed Tx's (MSDU) @ 11MB"),
3590 IPW2100_ORD(STAT_TX_NODIR_DATA1,
3591 "successful Non_Directed Tx's (MSDU) @ 1MB"),
3592 IPW2100_ORD(STAT_TX_NODIR_DATA2,
3593 "successful Non_Directed Tx's (MSDU) @ 2MB"),
3594 IPW2100_ORD(STAT_TX_NODIR_DATA5_5,
3595 "successful Non_Directed Tx's (MSDU) @ 5.5MB"),
3596 IPW2100_ORD(STAT_TX_NODIR_DATA11,
3597 "successful Non_Directed Tx's (MSDU) @ 11MB"),
3598 IPW2100_ORD(STAT_NULL_DATA, "successful NULL data Tx's"),
3599 IPW2100_ORD(STAT_TX_RTS, "successful Tx RTS"),
3600 IPW2100_ORD(STAT_TX_CTS, "successful Tx CTS"),
3601 IPW2100_ORD(STAT_TX_ACK, "successful Tx ACK"),
3602 IPW2100_ORD(STAT_TX_ASSN, "successful Association Tx's"),
3603 IPW2100_ORD(STAT_TX_ASSN_RESP,
3604 "successful Association response Tx's"),
3605 IPW2100_ORD(STAT_TX_REASSN,
3606 "successful Reassociation Tx's"),
3607 IPW2100_ORD(STAT_TX_REASSN_RESP,
3608 "successful Reassociation response Tx's"),
3609 IPW2100_ORD(STAT_TX_PROBE,
3610 "probes successfully transmitted"),
3611 IPW2100_ORD(STAT_TX_PROBE_RESP,
3612 "probe responses successfully transmitted"),
3613 IPW2100_ORD(STAT_TX_BEACON, "tx beacon"),
3614 IPW2100_ORD(STAT_TX_ATIM, "Tx ATIM"),
3615 IPW2100_ORD(STAT_TX_DISASSN,
3616 "successful Disassociation TX"),
3617 IPW2100_ORD(STAT_TX_AUTH, "successful Authentication Tx"),
3618 IPW2100_ORD(STAT_TX_DEAUTH,
3619 "successful Deauthentication TX"),
3620 IPW2100_ORD(STAT_TX_TOTAL_BYTES,
3621 "Total successful Tx data bytes"),
3622 IPW2100_ORD(STAT_TX_RETRIES, "Tx retries"),
3623 IPW2100_ORD(STAT_TX_RETRY1, "Tx retries at 1MBPS"),
3624 IPW2100_ORD(STAT_TX_RETRY2, "Tx retries at 2MBPS"),
3625 IPW2100_ORD(STAT_TX_RETRY5_5, "Tx retries at 5.5MBPS"),
3626 IPW2100_ORD(STAT_TX_RETRY11, "Tx retries at 11MBPS"),
3627 IPW2100_ORD(STAT_TX_FAILURES, "Tx Failures"),
3628 IPW2100_ORD(STAT_TX_MAX_TRIES_IN_HOP,
3629 "times max tries in a hop failed"),
3630 IPW2100_ORD(STAT_TX_DISASSN_FAIL,
3631 "times disassociation failed"),
3632 IPW2100_ORD(STAT_TX_ERR_CTS, "missed/bad CTS frames"),
3633 IPW2100_ORD(STAT_TX_ERR_ACK, "tx err due to acks"),
3634 IPW2100_ORD(STAT_RX_HOST, "packets passed to host"),
3635 IPW2100_ORD(STAT_RX_DIR_DATA, "directed packets"),
3636 IPW2100_ORD(STAT_RX_DIR_DATA1, "directed packets at 1MB"),
3637 IPW2100_ORD(STAT_RX_DIR_DATA2, "directed packets at 2MB"),
3638 IPW2100_ORD(STAT_RX_DIR_DATA5_5,
3639 "directed packets at 5.5MB"),
3640 IPW2100_ORD(STAT_RX_DIR_DATA11, "directed packets at 11MB"),
3641 IPW2100_ORD(STAT_RX_NODIR_DATA, "nondirected packets"),
3642 IPW2100_ORD(STAT_RX_NODIR_DATA1,
3643 "nondirected packets at 1MB"),
3644 IPW2100_ORD(STAT_RX_NODIR_DATA2,
3645 "nondirected packets at 2MB"),
3646 IPW2100_ORD(STAT_RX_NODIR_DATA5_5,
3647 "nondirected packets at 5.5MB"),
3648 IPW2100_ORD(STAT_RX_NODIR_DATA11,
3649 "nondirected packets at 11MB"),
3650 IPW2100_ORD(STAT_RX_NULL_DATA, "null data rx's"),
3651 IPW2100_ORD(STAT_RX_RTS, "Rx RTS"), IPW2100_ORD(STAT_RX_CTS,
3652 "Rx CTS"),
3653 IPW2100_ORD(STAT_RX_ACK, "Rx ACK"),
3654 IPW2100_ORD(STAT_RX_CFEND, "Rx CF End"),
3655 IPW2100_ORD(STAT_RX_CFEND_ACK, "Rx CF End + CF Ack"),
3656 IPW2100_ORD(STAT_RX_ASSN, "Association Rx's"),
3657 IPW2100_ORD(STAT_RX_ASSN_RESP, "Association response Rx's"),
3658 IPW2100_ORD(STAT_RX_REASSN, "Reassociation Rx's"),
3659 IPW2100_ORD(STAT_RX_REASSN_RESP,
3660 "Reassociation response Rx's"),
3661 IPW2100_ORD(STAT_RX_PROBE, "probe Rx's"),
3662 IPW2100_ORD(STAT_RX_PROBE_RESP, "probe response Rx's"),
3663 IPW2100_ORD(STAT_RX_BEACON, "Rx beacon"),
3664 IPW2100_ORD(STAT_RX_ATIM, "Rx ATIM"),
3665 IPW2100_ORD(STAT_RX_DISASSN, "disassociation Rx"),
3666 IPW2100_ORD(STAT_RX_AUTH, "authentication Rx"),
3667 IPW2100_ORD(STAT_RX_DEAUTH, "deauthentication Rx"),
3668 IPW2100_ORD(STAT_RX_TOTAL_BYTES,
3669 "Total rx data bytes received"),
3670 IPW2100_ORD(STAT_RX_ERR_CRC, "packets with Rx CRC error"),
3671 IPW2100_ORD(STAT_RX_ERR_CRC1, "Rx CRC errors at 1MB"),
3672 IPW2100_ORD(STAT_RX_ERR_CRC2, "Rx CRC errors at 2MB"),
3673 IPW2100_ORD(STAT_RX_ERR_CRC5_5, "Rx CRC errors at 5.5MB"),
3674 IPW2100_ORD(STAT_RX_ERR_CRC11, "Rx CRC errors at 11MB"),
3675 IPW2100_ORD(STAT_RX_DUPLICATE1,
3676 "duplicate rx packets at 1MB"),
3677 IPW2100_ORD(STAT_RX_DUPLICATE2,
3678 "duplicate rx packets at 2MB"),
3679 IPW2100_ORD(STAT_RX_DUPLICATE5_5,
3680 "duplicate rx packets at 5.5MB"),
3681 IPW2100_ORD(STAT_RX_DUPLICATE11,
3682 "duplicate rx packets at 11MB"),
3683 IPW2100_ORD(STAT_RX_DUPLICATE, "duplicate rx packets"),
3684 IPW2100_ORD(PERS_DB_LOCK, "locking fw permanent db"),
3685 IPW2100_ORD(PERS_DB_SIZE, "size of fw permanent db"),
3686 IPW2100_ORD(PERS_DB_ADDR, "address of fw permanent db"),
3687 IPW2100_ORD(STAT_RX_INVALID_PROTOCOL,
3688 "rx frames with invalid protocol"),
3689 IPW2100_ORD(SYS_BOOT_TIME, "Boot time"),
3690 IPW2100_ORD(STAT_RX_NO_BUFFER,
3691 "rx frames rejected due to no buffer"),
3692 IPW2100_ORD(STAT_RX_MISSING_FRAG,
3693 "rx frames dropped due to missing fragment"),
3694 IPW2100_ORD(STAT_RX_ORPHAN_FRAG,
3695 "rx frames dropped due to non-sequential fragment"),
3696 IPW2100_ORD(STAT_RX_ORPHAN_FRAME,
3697 "rx frames dropped due to unmatched 1st frame"),
3698 IPW2100_ORD(STAT_RX_FRAG_AGEOUT,
3699 "rx frames dropped due to uncompleted frame"),
3700 IPW2100_ORD(STAT_RX_ICV_ERRORS,
3701 "ICV errors during decryption"),
3702 IPW2100_ORD(STAT_PSP_SUSPENSION, "times adapter suspended"),
3703 IPW2100_ORD(STAT_PSP_BCN_TIMEOUT, "beacon timeout"),
3704 IPW2100_ORD(STAT_PSP_POLL_TIMEOUT,
3705 "poll response timeouts"),
3706 IPW2100_ORD(STAT_PSP_NONDIR_TIMEOUT,
3707 "timeouts waiting for last {broad,multi}cast pkt"),
3708 IPW2100_ORD(STAT_PSP_RX_DTIMS, "PSP DTIMs received"),
3709 IPW2100_ORD(STAT_PSP_RX_TIMS, "PSP TIMs received"),
3710 IPW2100_ORD(STAT_PSP_STATION_ID, "PSP Station ID"),
3711 IPW2100_ORD(LAST_ASSN_TIME, "RTC time of last association"),
3712 IPW2100_ORD(STAT_PERCENT_MISSED_BCNS,
3713 "current calculation of % missed beacons"),
3714 IPW2100_ORD(STAT_PERCENT_RETRIES,
3715 "current calculation of % missed tx retries"),
3716 IPW2100_ORD(ASSOCIATED_AP_PTR,
3717 "0 if not associated, else pointer to AP table entry"),
3718 IPW2100_ORD(AVAILABLE_AP_CNT,
3719 "AP's described in the AP table"),
3720 IPW2100_ORD(AP_LIST_PTR, "Ptr to list of available APs"),
3721 IPW2100_ORD(STAT_AP_ASSNS, "associations"),
3722 IPW2100_ORD(STAT_ASSN_FAIL, "association failures"),
3723 IPW2100_ORD(STAT_ASSN_RESP_FAIL,
3724 "failures due to response fail"),
3725 IPW2100_ORD(STAT_FULL_SCANS, "full scans"),
3726 IPW2100_ORD(CARD_DISABLED, "Card Disabled"),
3727 IPW2100_ORD(STAT_ROAM_INHIBIT,
3728 "times roaming was inhibited due to activity"),
3729 IPW2100_ORD(RSSI_AT_ASSN,
3730 "RSSI of associated AP at time of association"),
3731 IPW2100_ORD(STAT_ASSN_CAUSE1,
3732 "reassociation: no probe response or TX on hop"),
3733 IPW2100_ORD(STAT_ASSN_CAUSE2,
3734 "reassociation: poor tx/rx quality"),
3735 IPW2100_ORD(STAT_ASSN_CAUSE3,
3736 "reassociation: tx/rx quality (excessive AP load"),
3737 IPW2100_ORD(STAT_ASSN_CAUSE4,
3738 "reassociation: AP RSSI level"),
3739 IPW2100_ORD(STAT_ASSN_CAUSE5,
3740 "reassociations due to load leveling"),
3741 IPW2100_ORD(STAT_AUTH_FAIL, "times authentication failed"),
3742 IPW2100_ORD(STAT_AUTH_RESP_FAIL,
3743 "times authentication response failed"),
3744 IPW2100_ORD(STATION_TABLE_CNT,
3745 "entries in association table"),
3746 IPW2100_ORD(RSSI_AVG_CURR, "Current avg RSSI"),
3747 IPW2100_ORD(POWER_MGMT_MODE, "Power mode - 0=CAM, 1=PSP"),
3748 IPW2100_ORD(COUNTRY_CODE,
3749 "IEEE country code as recv'd from beacon"),
3750 IPW2100_ORD(COUNTRY_CHANNELS,
3751 "channels supported by country"),
3752 IPW2100_ORD(RESET_CNT, "adapter resets (warm)"),
3753 IPW2100_ORD(BEACON_INTERVAL, "Beacon interval"),
3754 IPW2100_ORD(ANTENNA_DIVERSITY,
3755 "TRUE if antenna diversity is disabled"),
3756 IPW2100_ORD(DTIM_PERIOD, "beacon intervals between DTIMs"),
3757 IPW2100_ORD(OUR_FREQ,
3758 "current radio freq lower digits - channel ID"),
3759 IPW2100_ORD(RTC_TIME, "current RTC time"),
3760 IPW2100_ORD(PORT_TYPE, "operating mode"),
3761 IPW2100_ORD(CURRENT_TX_RATE, "current tx rate"),
3762 IPW2100_ORD(SUPPORTED_RATES, "supported tx rates"),
3763 IPW2100_ORD(ATIM_WINDOW, "current ATIM Window"),
3764 IPW2100_ORD(BASIC_RATES, "basic tx rates"),
3765 IPW2100_ORD(NIC_HIGHEST_RATE, "NIC highest tx rate"),
3766 IPW2100_ORD(AP_HIGHEST_RATE, "AP highest tx rate"),
3767 IPW2100_ORD(CAPABILITIES,
3768 "Management frame capability field"),
3769 IPW2100_ORD(AUTH_TYPE, "Type of authentication"),
3770 IPW2100_ORD(RADIO_TYPE, "Adapter card platform type"),
3771 IPW2100_ORD(RTS_THRESHOLD,
3772 "Min packet length for RTS handshaking"),
3773 IPW2100_ORD(INT_MODE, "International mode"),
3774 IPW2100_ORD(FRAGMENTATION_THRESHOLD,
3775 "protocol frag threshold"),
3776 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_START_ADDRESS,
3777 "EEPROM offset in SRAM"),
3778 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_SIZE,
3779 "EEPROM size in SRAM"),
3780 IPW2100_ORD(EEPROM_SKU_CAPABILITY, "EEPROM SKU Capability"),
3781 IPW2100_ORD(EEPROM_IBSS_11B_CHANNELS,
3782 "EEPROM IBSS 11b channel set"),
3783 IPW2100_ORD(MAC_VERSION, "MAC Version"),
3784 IPW2100_ORD(MAC_REVISION, "MAC Revision"),
3785 IPW2100_ORD(RADIO_VERSION, "Radio Version"),
3786 IPW2100_ORD(NIC_MANF_DATE_TIME, "MANF Date/Time STAMP"),
3787 IPW2100_ORD(UCODE_VERSION, "Ucode Version"),};
3788
3789static ssize_t show_registers(struct device *d, struct device_attribute *attr,
3790 char *buf)
3791{
3792 int i;
3793 struct ipw2100_priv *priv = dev_get_drvdata(d);
3794 struct net_device *dev = priv->net_dev;
3795 char *out = buf;
3796 u32 val = 0;
3797
3798 out += sprintf(out, "%30s [Address ] : Hex\n", "Register");
3799
3800 for (i = 0; i < ARRAY_SIZE(hw_data); i++) {
3801 read_register(dev, hw_data[i].addr, &val);
3802 out += sprintf(out, "%30s [%08X] : %08X\n",
3803 hw_data[i].name, hw_data[i].addr, val);
3804 }
3805
3806 return out - buf;
3807}
3808
3809static DEVICE_ATTR(registers, 0444, show_registers, NULL);
3810
3811static ssize_t show_hardware(struct device *d, struct device_attribute *attr,
3812 char *buf)
3813{
3814 struct ipw2100_priv *priv = dev_get_drvdata(d);
3815 struct net_device *dev = priv->net_dev;
3816 char *out = buf;
3817 int i;
3818
3819 out += sprintf(out, "%30s [Address ] : Hex\n", "NIC entry");
3820
3821 for (i = 0; i < ARRAY_SIZE(nic_data); i++) {
3822 u8 tmp8;
3823 u16 tmp16;
3824 u32 tmp32;
3825
3826 switch (nic_data[i].size) {
3827 case 1:
3828 read_nic_byte(dev, nic_data[i].addr, &tmp8);
3829 out += sprintf(out, "%30s [%08X] : %02X\n",
3830 nic_data[i].name, nic_data[i].addr,
3831 tmp8);
3832 break;
3833 case 2:
3834 read_nic_word(dev, nic_data[i].addr, &tmp16);
3835 out += sprintf(out, "%30s [%08X] : %04X\n",
3836 nic_data[i].name, nic_data[i].addr,
3837 tmp16);
3838 break;
3839 case 4:
3840 read_nic_dword(dev, nic_data[i].addr, &tmp32);
3841 out += sprintf(out, "%30s [%08X] : %08X\n",
3842 nic_data[i].name, nic_data[i].addr,
3843 tmp32);
3844 break;
3845 }
3846 }
3847 return out - buf;
3848}
3849
3850static DEVICE_ATTR(hardware, 0444, show_hardware, NULL);
3851
3852static ssize_t show_memory(struct device *d, struct device_attribute *attr,
3853 char *buf)
3854{
3855 struct ipw2100_priv *priv = dev_get_drvdata(d);
3856 struct net_device *dev = priv->net_dev;
3857 static unsigned long loop = 0;
3858 int len = 0;
3859 u32 buffer[4];
3860 int i;
3861 char line[81];
3862
3863 if (loop >= 0x30000)
3864 loop = 0;
3865
3866 /* sysfs provides us PAGE_SIZE buffer */
3867 while (len < PAGE_SIZE - 128 && loop < 0x30000) {
3868
3869 if (priv->snapshot[0])
3870 for (i = 0; i < 4; i++)
3871 buffer[i] =
3872 *(u32 *) SNAPSHOT_ADDR(loop + i * 4);
3873 else
3874 for (i = 0; i < 4; i++)
3875 read_nic_dword(dev, loop + i * 4, &buffer[i]);
3876
3877 if (priv->dump_raw)
3878 len += sprintf(buf + len,
3879 "%c%c%c%c"
3880 "%c%c%c%c"
3881 "%c%c%c%c"
3882 "%c%c%c%c",
3883 ((u8 *) buffer)[0x0],
3884 ((u8 *) buffer)[0x1],
3885 ((u8 *) buffer)[0x2],
3886 ((u8 *) buffer)[0x3],
3887 ((u8 *) buffer)[0x4],
3888 ((u8 *) buffer)[0x5],
3889 ((u8 *) buffer)[0x6],
3890 ((u8 *) buffer)[0x7],
3891 ((u8 *) buffer)[0x8],
3892 ((u8 *) buffer)[0x9],
3893 ((u8 *) buffer)[0xa],
3894 ((u8 *) buffer)[0xb],
3895 ((u8 *) buffer)[0xc],
3896 ((u8 *) buffer)[0xd],
3897 ((u8 *) buffer)[0xe],
3898 ((u8 *) buffer)[0xf]);
3899 else
3900 len += sprintf(buf + len, "%s\n",
3901 snprint_line(line, sizeof(line),
3902 (u8 *) buffer, 16, loop));
3903 loop += 16;
3904 }
3905
3906 return len;
3907}
3908
3909static ssize_t store_memory(struct device *d, struct device_attribute *attr,
3910 const char *buf, size_t count)
3911{
3912 struct ipw2100_priv *priv = dev_get_drvdata(d);
3913 struct net_device *dev = priv->net_dev;
3914 const char *p = buf;
3915
3916 (void)dev; /* kill unused-var warning for debug-only code */
3917
3918 if (count < 1)
3919 return count;
3920
3921 if (p[0] == '1' ||
3922 (count >= 2 && tolower(p[0]) == 'o' && tolower(p[1]) == 'n')) {
3923 IPW_DEBUG_INFO("%s: Setting memory dump to RAW mode.\n",
3924 dev->name);
3925 priv->dump_raw = 1;
3926
3927 } else if (p[0] == '0' || (count >= 2 && tolower(p[0]) == 'o' &&
3928 tolower(p[1]) == 'f')) {
3929 IPW_DEBUG_INFO("%s: Setting memory dump to HEX mode.\n",
3930 dev->name);
3931 priv->dump_raw = 0;
3932
3933 } else if (tolower(p[0]) == 'r') {
3934 IPW_DEBUG_INFO("%s: Resetting firmware snapshot.\n", dev->name);
3935 ipw2100_snapshot_free(priv);
3936
3937 } else
3938 IPW_DEBUG_INFO("%s: Usage: 0|on = HEX, 1|off = RAW, "
3939 "reset = clear memory snapshot\n", dev->name);
3940
3941 return count;
3942}
3943
3944static DEVICE_ATTR(memory, 0644, show_memory, store_memory);
3945
3946static ssize_t show_ordinals(struct device *d, struct device_attribute *attr,
3947 char *buf)
3948{
3949 struct ipw2100_priv *priv = dev_get_drvdata(d);
3950 u32 val = 0;
3951 int len = 0;
3952 u32 val_len;
3953 static int loop = 0;
3954
3955 if (priv->status & STATUS_RF_KILL_MASK)
3956 return 0;
3957
3958 if (loop >= ARRAY_SIZE(ord_data))
3959 loop = 0;
3960
3961 /* sysfs provides us PAGE_SIZE buffer */
3962 while (len < PAGE_SIZE - 128 && loop < ARRAY_SIZE(ord_data)) {
3963 val_len = sizeof(u32);
3964
3965 if (ipw2100_get_ordinal(priv, ord_data[loop].index, &val,
3966 &val_len))
3967 len += sprintf(buf + len, "[0x%02X] = ERROR %s\n",
3968 ord_data[loop].index,
3969 ord_data[loop].desc);
3970 else
3971 len += sprintf(buf + len, "[0x%02X] = 0x%08X %s\n",
3972 ord_data[loop].index, val,
3973 ord_data[loop].desc);
3974 loop++;
3975 }
3976
3977 return len;
3978}
3979
3980static DEVICE_ATTR(ordinals, 0444, show_ordinals, NULL);
3981
3982static ssize_t show_stats(struct device *d, struct device_attribute *attr,
3983 char *buf)
3984{
3985 struct ipw2100_priv *priv = dev_get_drvdata(d);
3986 char *out = buf;
3987
3988 out += sprintf(out, "interrupts: %d {tx: %d, rx: %d, other: %d}\n",
3989 priv->interrupts, priv->tx_interrupts,
3990 priv->rx_interrupts, priv->inta_other);
3991 out += sprintf(out, "firmware resets: %d\n", priv->resets);
3992 out += sprintf(out, "firmware hangs: %d\n", priv->hangs);
3993#ifdef CONFIG_IPW2100_DEBUG
3994 out += sprintf(out, "packet mismatch image: %s\n",
3995 priv->snapshot[0] ? "YES" : "NO");
3996#endif
3997
3998 return out - buf;
3999}
4000
4001static DEVICE_ATTR(stats, 0444, show_stats, NULL);
4002
4003static int ipw2100_switch_mode(struct ipw2100_priv *priv, u32 mode)
4004{
4005 int err;
4006
4007 if (mode == priv->ieee->iw_mode)
4008 return 0;
4009
4010 err = ipw2100_disable_adapter(priv);
4011 if (err) {
4012 printk(KERN_ERR DRV_NAME ": %s: Could not disable adapter %d\n",
4013 priv->net_dev->name, err);
4014 return err;
4015 }
4016
4017 switch (mode) {
4018 case IW_MODE_INFRA:
4019 priv->net_dev->type = ARPHRD_ETHER;
4020 break;
4021 case IW_MODE_ADHOC:
4022 priv->net_dev->type = ARPHRD_ETHER;
4023 break;
4024#ifdef CONFIG_IPW2100_MONITOR
4025 case IW_MODE_MONITOR:
4026 priv->last_mode = priv->ieee->iw_mode;
4027 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
4028 break;
4029#endif /* CONFIG_IPW2100_MONITOR */
4030 }
4031
4032 priv->ieee->iw_mode = mode;
4033
4034#ifdef CONFIG_PM
4035 /* Indicate ipw2100_download_firmware download firmware
4036 * from disk instead of memory. */
4037 ipw2100_firmware.version = 0;
4038#endif
4039
4040 printk(KERN_INFO "%s: Resetting on mode change.\n", priv->net_dev->name);
4041 priv->reset_backoff = 0;
4042 schedule_reset(priv);
4043
4044 return 0;
4045}
4046
4047static ssize_t show_internals(struct device *d, struct device_attribute *attr,
4048 char *buf)
4049{
4050 struct ipw2100_priv *priv = dev_get_drvdata(d);
4051 int len = 0;
4052
4053#define DUMP_VAR(x,y) len += sprintf(buf + len, # x ": %" y "\n", priv-> x)
4054
4055 if (priv->status & STATUS_ASSOCIATED)
4056 len += sprintf(buf + len, "connected: %llu\n",
4057 ktime_get_boottime_seconds() - priv->connect_start);
4058 else
4059 len += sprintf(buf + len, "not connected\n");
4060
4061 DUMP_VAR(ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx], "p");
4062 DUMP_VAR(status, "08lx");
4063 DUMP_VAR(config, "08lx");
4064 DUMP_VAR(capability, "08lx");
4065
4066 len +=
4067 sprintf(buf + len, "last_rtc: %lu\n",
4068 (unsigned long)priv->last_rtc);
4069
4070 DUMP_VAR(fatal_error, "d");
4071 DUMP_VAR(stop_hang_check, "d");
4072 DUMP_VAR(stop_rf_kill, "d");
4073 DUMP_VAR(messages_sent, "d");
4074
4075 DUMP_VAR(tx_pend_stat.value, "d");
4076 DUMP_VAR(tx_pend_stat.hi, "d");
4077
4078 DUMP_VAR(tx_free_stat.value, "d");
4079 DUMP_VAR(tx_free_stat.lo, "d");
4080
4081 DUMP_VAR(msg_free_stat.value, "d");
4082 DUMP_VAR(msg_free_stat.lo, "d");
4083
4084 DUMP_VAR(msg_pend_stat.value, "d");
4085 DUMP_VAR(msg_pend_stat.hi, "d");
4086
4087 DUMP_VAR(fw_pend_stat.value, "d");
4088 DUMP_VAR(fw_pend_stat.hi, "d");
4089
4090 DUMP_VAR(txq_stat.value, "d");
4091 DUMP_VAR(txq_stat.lo, "d");
4092
4093 DUMP_VAR(ieee->scans, "d");
4094 DUMP_VAR(reset_backoff, "lld");
4095
4096 return len;
4097}
4098
4099static DEVICE_ATTR(internals, 0444, show_internals, NULL);
4100
4101static ssize_t show_bssinfo(struct device *d, struct device_attribute *attr,
4102 char *buf)
4103{
4104 struct ipw2100_priv *priv = dev_get_drvdata(d);
4105 char essid[IW_ESSID_MAX_SIZE + 1];
4106 u8 bssid[ETH_ALEN];
4107 u32 chan = 0;
4108 char *out = buf;
4109 unsigned int length;
4110 int ret;
4111
4112 if (priv->status & STATUS_RF_KILL_MASK)
4113 return 0;
4114
4115 memset(essid, 0, sizeof(essid));
4116 memset(bssid, 0, sizeof(bssid));
4117
4118 length = IW_ESSID_MAX_SIZE;
4119 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID, essid, &length);
4120 if (ret)
4121 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4122 __LINE__);
4123
4124 length = sizeof(bssid);
4125 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
4126 bssid, &length);
4127 if (ret)
4128 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4129 __LINE__);
4130
4131 length = sizeof(u32);
4132 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &length);
4133 if (ret)
4134 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
4135 __LINE__);
4136
4137 out += sprintf(out, "ESSID: %s\n", essid);
4138 out += sprintf(out, "BSSID: %pM\n", bssid);
4139 out += sprintf(out, "Channel: %d\n", chan);
4140
4141 return out - buf;
4142}
4143
4144static DEVICE_ATTR(bssinfo, 0444, show_bssinfo, NULL);
4145
4146#ifdef CONFIG_IPW2100_DEBUG
4147static ssize_t debug_level_show(struct device_driver *d, char *buf)
4148{
4149 return sprintf(buf, "0x%08X\n", ipw2100_debug_level);
4150}
4151
4152static ssize_t debug_level_store(struct device_driver *d,
4153 const char *buf, size_t count)
4154{
4155 u32 val;
4156 int ret;
4157
4158 ret = kstrtou32(buf, 0, &val);
4159 if (ret)
4160 IPW_DEBUG_INFO(": %s is not in hex or decimal form.\n", buf);
4161 else
4162 ipw2100_debug_level = val;
4163
4164 return strnlen(buf, count);
4165}
4166static DRIVER_ATTR_RW(debug_level);
4167#endif /* CONFIG_IPW2100_DEBUG */
4168
4169static ssize_t show_fatal_error(struct device *d,
4170 struct device_attribute *attr, char *buf)
4171{
4172 struct ipw2100_priv *priv = dev_get_drvdata(d);
4173 char *out = buf;
4174 int i;
4175
4176 if (priv->fatal_error)
4177 out += sprintf(out, "0x%08X\n", priv->fatal_error);
4178 else
4179 out += sprintf(out, "0\n");
4180
4181 for (i = 1; i <= IPW2100_ERROR_QUEUE; i++) {
4182 if (!priv->fatal_errors[(priv->fatal_index - i) %
4183 IPW2100_ERROR_QUEUE])
4184 continue;
4185
4186 out += sprintf(out, "%d. 0x%08X\n", i,
4187 priv->fatal_errors[(priv->fatal_index - i) %
4188 IPW2100_ERROR_QUEUE]);
4189 }
4190
4191 return out - buf;
4192}
4193
4194static ssize_t store_fatal_error(struct device *d,
4195 struct device_attribute *attr, const char *buf,
4196 size_t count)
4197{
4198 struct ipw2100_priv *priv = dev_get_drvdata(d);
4199 schedule_reset(priv);
4200 return count;
4201}
4202
4203static DEVICE_ATTR(fatal_error, 0644, show_fatal_error, store_fatal_error);
4204
4205static ssize_t show_scan_age(struct device *d, struct device_attribute *attr,
4206 char *buf)
4207{
4208 struct ipw2100_priv *priv = dev_get_drvdata(d);
4209 return sprintf(buf, "%d\n", priv->ieee->scan_age);
4210}
4211
4212static ssize_t store_scan_age(struct device *d, struct device_attribute *attr,
4213 const char *buf, size_t count)
4214{
4215 struct ipw2100_priv *priv = dev_get_drvdata(d);
4216 struct net_device *dev = priv->net_dev;
4217 unsigned long val;
4218 int ret;
4219
4220 (void)dev; /* kill unused-var warning for debug-only code */
4221
4222 IPW_DEBUG_INFO("enter\n");
4223
4224 ret = kstrtoul(buf, 0, &val);
4225 if (ret) {
4226 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
4227 } else {
4228 priv->ieee->scan_age = val;
4229 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
4230 }
4231
4232 IPW_DEBUG_INFO("exit\n");
4233 return strnlen(buf, count);
4234}
4235
4236static DEVICE_ATTR(scan_age, 0644, show_scan_age, store_scan_age);
4237
4238static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr,
4239 char *buf)
4240{
4241 /* 0 - RF kill not enabled
4242 1 - SW based RF kill active (sysfs)
4243 2 - HW based RF kill active
4244 3 - Both HW and SW baed RF kill active */
4245 struct ipw2100_priv *priv = dev_get_drvdata(d);
4246 int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
4247 (rf_kill_active(priv) ? 0x2 : 0x0);
4248 return sprintf(buf, "%i\n", val);
4249}
4250
4251static int ipw_radio_kill_sw(struct ipw2100_priv *priv, int disable_radio)
4252{
4253 if ((disable_radio ? 1 : 0) ==
4254 (priv->status & STATUS_RF_KILL_SW ? 1 : 0))
4255 return 0;
4256
4257 IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n",
4258 disable_radio ? "OFF" : "ON");
4259
4260 mutex_lock(&priv->action_mutex);
4261
4262 if (disable_radio) {
4263 priv->status |= STATUS_RF_KILL_SW;
4264 ipw2100_down(priv);
4265 } else {
4266 priv->status &= ~STATUS_RF_KILL_SW;
4267 if (rf_kill_active(priv)) {
4268 IPW_DEBUG_RF_KILL("Can not turn radio back on - "
4269 "disabled by HW switch\n");
4270 /* Make sure the RF_KILL check timer is running */
4271 priv->stop_rf_kill = 0;
4272 mod_delayed_work(system_wq, &priv->rf_kill,
4273 round_jiffies_relative(HZ));
4274 } else
4275 schedule_reset(priv);
4276 }
4277
4278 mutex_unlock(&priv->action_mutex);
4279 return 1;
4280}
4281
4282static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr,
4283 const char *buf, size_t count)
4284{
4285 struct ipw2100_priv *priv = dev_get_drvdata(d);
4286 ipw_radio_kill_sw(priv, buf[0] == '1');
4287 return count;
4288}
4289
4290static DEVICE_ATTR(rf_kill, 0644, show_rf_kill, store_rf_kill);
4291
4292static struct attribute *ipw2100_sysfs_entries[] = {
4293 &dev_attr_hardware.attr,
4294 &dev_attr_registers.attr,
4295 &dev_attr_ordinals.attr,
4296 &dev_attr_pci.attr,
4297 &dev_attr_stats.attr,
4298 &dev_attr_internals.attr,
4299 &dev_attr_bssinfo.attr,
4300 &dev_attr_memory.attr,
4301 &dev_attr_scan_age.attr,
4302 &dev_attr_fatal_error.attr,
4303 &dev_attr_rf_kill.attr,
4304 &dev_attr_cfg.attr,
4305 &dev_attr_status.attr,
4306 &dev_attr_capability.attr,
4307 NULL,
4308};
4309
4310static const struct attribute_group ipw2100_attribute_group = {
4311 .attrs = ipw2100_sysfs_entries,
4312};
4313
4314static int status_queue_allocate(struct ipw2100_priv *priv, int entries)
4315{
4316 struct ipw2100_status_queue *q = &priv->status_queue;
4317
4318 IPW_DEBUG_INFO("enter\n");
4319
4320 q->size = entries * sizeof(struct ipw2100_status);
4321 q->drv = dma_alloc_coherent(&priv->pci_dev->dev, q->size, &q->nic,
4322 GFP_KERNEL);
4323 if (!q->drv) {
4324 IPW_DEBUG_WARNING("Can not allocate status queue.\n");
4325 return -ENOMEM;
4326 }
4327
4328 IPW_DEBUG_INFO("exit\n");
4329
4330 return 0;
4331}
4332
4333static void status_queue_free(struct ipw2100_priv *priv)
4334{
4335 IPW_DEBUG_INFO("enter\n");
4336
4337 if (priv->status_queue.drv) {
4338 dma_free_coherent(&priv->pci_dev->dev,
4339 priv->status_queue.size,
4340 priv->status_queue.drv,
4341 priv->status_queue.nic);
4342 priv->status_queue.drv = NULL;
4343 }
4344
4345 IPW_DEBUG_INFO("exit\n");
4346}
4347
4348static int bd_queue_allocate(struct ipw2100_priv *priv,
4349 struct ipw2100_bd_queue *q, int entries)
4350{
4351 IPW_DEBUG_INFO("enter\n");
4352
4353 memset(q, 0, sizeof(struct ipw2100_bd_queue));
4354
4355 q->entries = entries;
4356 q->size = entries * sizeof(struct ipw2100_bd);
4357 q->drv = dma_alloc_coherent(&priv->pci_dev->dev, q->size, &q->nic,
4358 GFP_KERNEL);
4359 if (!q->drv) {
4360 IPW_DEBUG_INFO
4361 ("can't allocate shared memory for buffer descriptors\n");
4362 return -ENOMEM;
4363 }
4364
4365 IPW_DEBUG_INFO("exit\n");
4366
4367 return 0;
4368}
4369
4370static void bd_queue_free(struct ipw2100_priv *priv, struct ipw2100_bd_queue *q)
4371{
4372 IPW_DEBUG_INFO("enter\n");
4373
4374 if (!q)
4375 return;
4376
4377 if (q->drv) {
4378 dma_free_coherent(&priv->pci_dev->dev, q->size, q->drv,
4379 q->nic);
4380 q->drv = NULL;
4381 }
4382
4383 IPW_DEBUG_INFO("exit\n");
4384}
4385
4386static void bd_queue_initialize(struct ipw2100_priv *priv,
4387 struct ipw2100_bd_queue *q, u32 base, u32 size,
4388 u32 r, u32 w)
4389{
4390 IPW_DEBUG_INFO("enter\n");
4391
4392 IPW_DEBUG_INFO("initializing bd queue at virt=%p, phys=%08x\n", q->drv,
4393 (u32) q->nic);
4394
4395 write_register(priv->net_dev, base, q->nic);
4396 write_register(priv->net_dev, size, q->entries);
4397 write_register(priv->net_dev, r, q->oldest);
4398 write_register(priv->net_dev, w, q->next);
4399
4400 IPW_DEBUG_INFO("exit\n");
4401}
4402
4403static void ipw2100_kill_works(struct ipw2100_priv *priv)
4404{
4405 priv->stop_rf_kill = 1;
4406 priv->stop_hang_check = 1;
4407 cancel_delayed_work_sync(&priv->reset_work);
4408 cancel_delayed_work_sync(&priv->security_work);
4409 cancel_delayed_work_sync(&priv->wx_event_work);
4410 cancel_delayed_work_sync(&priv->hang_check);
4411 cancel_delayed_work_sync(&priv->rf_kill);
4412 cancel_delayed_work_sync(&priv->scan_event);
4413}
4414
4415static int ipw2100_tx_allocate(struct ipw2100_priv *priv)
4416{
4417 int i, j, err;
4418 void *v;
4419 dma_addr_t p;
4420
4421 IPW_DEBUG_INFO("enter\n");
4422
4423 err = bd_queue_allocate(priv, &priv->tx_queue, TX_QUEUE_LENGTH);
4424 if (err) {
4425 IPW_DEBUG_ERROR("%s: failed bd_queue_allocate\n",
4426 priv->net_dev->name);
4427 return err;
4428 }
4429
4430 priv->tx_buffers = kmalloc_array(TX_PENDED_QUEUE_LENGTH,
4431 sizeof(struct ipw2100_tx_packet),
4432 GFP_KERNEL);
4433 if (!priv->tx_buffers) {
4434 bd_queue_free(priv, &priv->tx_queue);
4435 return -ENOMEM;
4436 }
4437
4438 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4439 v = dma_alloc_coherent(&priv->pci_dev->dev,
4440 sizeof(struct ipw2100_data_header), &p,
4441 GFP_KERNEL);
4442 if (!v) {
4443 printk(KERN_ERR DRV_NAME
4444 ": %s: PCI alloc failed for tx " "buffers.\n",
4445 priv->net_dev->name);
4446 err = -ENOMEM;
4447 break;
4448 }
4449
4450 priv->tx_buffers[i].type = DATA;
4451 priv->tx_buffers[i].info.d_struct.data =
4452 (struct ipw2100_data_header *)v;
4453 priv->tx_buffers[i].info.d_struct.data_phys = p;
4454 priv->tx_buffers[i].info.d_struct.txb = NULL;
4455 }
4456
4457 if (i == TX_PENDED_QUEUE_LENGTH)
4458 return 0;
4459
4460 for (j = 0; j < i; j++) {
4461 dma_free_coherent(&priv->pci_dev->dev,
4462 sizeof(struct ipw2100_data_header),
4463 priv->tx_buffers[j].info.d_struct.data,
4464 priv->tx_buffers[j].info.d_struct.data_phys);
4465 }
4466
4467 kfree(priv->tx_buffers);
4468 priv->tx_buffers = NULL;
4469
4470 return err;
4471}
4472
4473static void ipw2100_tx_initialize(struct ipw2100_priv *priv)
4474{
4475 int i;
4476
4477 IPW_DEBUG_INFO("enter\n");
4478
4479 /*
4480 * reinitialize packet info lists
4481 */
4482 INIT_LIST_HEAD(&priv->fw_pend_list);
4483 INIT_STAT(&priv->fw_pend_stat);
4484
4485 /*
4486 * reinitialize lists
4487 */
4488 INIT_LIST_HEAD(&priv->tx_pend_list);
4489 INIT_LIST_HEAD(&priv->tx_free_list);
4490 INIT_STAT(&priv->tx_pend_stat);
4491 INIT_STAT(&priv->tx_free_stat);
4492
4493 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4494 /* We simply drop any SKBs that have been queued for
4495 * transmit */
4496 if (priv->tx_buffers[i].info.d_struct.txb) {
4497 libipw_txb_free(priv->tx_buffers[i].info.d_struct.
4498 txb);
4499 priv->tx_buffers[i].info.d_struct.txb = NULL;
4500 }
4501
4502 list_add_tail(&priv->tx_buffers[i].list, &priv->tx_free_list);
4503 }
4504
4505 SET_STAT(&priv->tx_free_stat, i);
4506
4507 priv->tx_queue.oldest = 0;
4508 priv->tx_queue.available = priv->tx_queue.entries;
4509 priv->tx_queue.next = 0;
4510 INIT_STAT(&priv->txq_stat);
4511 SET_STAT(&priv->txq_stat, priv->tx_queue.available);
4512
4513 bd_queue_initialize(priv, &priv->tx_queue,
4514 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_BASE,
4515 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_SIZE,
4516 IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
4517 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX);
4518
4519 IPW_DEBUG_INFO("exit\n");
4520
4521}
4522
4523static void ipw2100_tx_free(struct ipw2100_priv *priv)
4524{
4525 int i;
4526
4527 IPW_DEBUG_INFO("enter\n");
4528
4529 bd_queue_free(priv, &priv->tx_queue);
4530
4531 if (!priv->tx_buffers)
4532 return;
4533
4534 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4535 if (priv->tx_buffers[i].info.d_struct.txb) {
4536 libipw_txb_free(priv->tx_buffers[i].info.d_struct.
4537 txb);
4538 priv->tx_buffers[i].info.d_struct.txb = NULL;
4539 }
4540 if (priv->tx_buffers[i].info.d_struct.data)
4541 dma_free_coherent(&priv->pci_dev->dev,
4542 sizeof(struct ipw2100_data_header),
4543 priv->tx_buffers[i].info.d_struct.data,
4544 priv->tx_buffers[i].info.d_struct.data_phys);
4545 }
4546
4547 kfree(priv->tx_buffers);
4548 priv->tx_buffers = NULL;
4549
4550 IPW_DEBUG_INFO("exit\n");
4551}
4552
4553static int ipw2100_rx_allocate(struct ipw2100_priv *priv)
4554{
4555 int i, j, err = -EINVAL;
4556
4557 IPW_DEBUG_INFO("enter\n");
4558
4559 err = bd_queue_allocate(priv, &priv->rx_queue, RX_QUEUE_LENGTH);
4560 if (err) {
4561 IPW_DEBUG_INFO("failed bd_queue_allocate\n");
4562 return err;
4563 }
4564
4565 err = status_queue_allocate(priv, RX_QUEUE_LENGTH);
4566 if (err) {
4567 IPW_DEBUG_INFO("failed status_queue_allocate\n");
4568 bd_queue_free(priv, &priv->rx_queue);
4569 return err;
4570 }
4571
4572 /*
4573 * allocate packets
4574 */
4575 priv->rx_buffers = kmalloc_array(RX_QUEUE_LENGTH,
4576 sizeof(struct ipw2100_rx_packet),
4577 GFP_KERNEL);
4578 if (!priv->rx_buffers) {
4579 IPW_DEBUG_INFO("can't allocate rx packet buffer table\n");
4580
4581 bd_queue_free(priv, &priv->rx_queue);
4582
4583 status_queue_free(priv);
4584
4585 return -ENOMEM;
4586 }
4587
4588 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4589 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
4590
4591 err = ipw2100_alloc_skb(priv, packet);
4592 if (unlikely(err)) {
4593 err = -ENOMEM;
4594 break;
4595 }
4596
4597 /* The BD holds the cache aligned address */
4598 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
4599 priv->rx_queue.drv[i].buf_length = IPW_RX_NIC_BUFFER_LENGTH;
4600 priv->status_queue.drv[i].status_fields = 0;
4601 }
4602
4603 if (i == RX_QUEUE_LENGTH)
4604 return 0;
4605
4606 for (j = 0; j < i; j++) {
4607 dma_unmap_single(&priv->pci_dev->dev,
4608 priv->rx_buffers[j].dma_addr,
4609 sizeof(struct ipw2100_rx_packet),
4610 DMA_FROM_DEVICE);
4611 dev_kfree_skb(priv->rx_buffers[j].skb);
4612 }
4613
4614 kfree(priv->rx_buffers);
4615 priv->rx_buffers = NULL;
4616
4617 bd_queue_free(priv, &priv->rx_queue);
4618
4619 status_queue_free(priv);
4620
4621 return err;
4622}
4623
4624static void ipw2100_rx_initialize(struct ipw2100_priv *priv)
4625{
4626 IPW_DEBUG_INFO("enter\n");
4627
4628 priv->rx_queue.oldest = 0;
4629 priv->rx_queue.available = priv->rx_queue.entries - 1;
4630 priv->rx_queue.next = priv->rx_queue.entries - 1;
4631
4632 INIT_STAT(&priv->rxq_stat);
4633 SET_STAT(&priv->rxq_stat, priv->rx_queue.available);
4634
4635 bd_queue_initialize(priv, &priv->rx_queue,
4636 IPW_MEM_HOST_SHARED_RX_BD_BASE,
4637 IPW_MEM_HOST_SHARED_RX_BD_SIZE,
4638 IPW_MEM_HOST_SHARED_RX_READ_INDEX,
4639 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX);
4640
4641 /* set up the status queue */
4642 write_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_STATUS_BASE,
4643 priv->status_queue.nic);
4644
4645 IPW_DEBUG_INFO("exit\n");
4646}
4647
4648static void ipw2100_rx_free(struct ipw2100_priv *priv)
4649{
4650 int i;
4651
4652 IPW_DEBUG_INFO("enter\n");
4653
4654 bd_queue_free(priv, &priv->rx_queue);
4655 status_queue_free(priv);
4656
4657 if (!priv->rx_buffers)
4658 return;
4659
4660 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4661 if (priv->rx_buffers[i].rxp) {
4662 dma_unmap_single(&priv->pci_dev->dev,
4663 priv->rx_buffers[i].dma_addr,
4664 sizeof(struct ipw2100_rx),
4665 DMA_FROM_DEVICE);
4666 dev_kfree_skb(priv->rx_buffers[i].skb);
4667 }
4668 }
4669
4670 kfree(priv->rx_buffers);
4671 priv->rx_buffers = NULL;
4672
4673 IPW_DEBUG_INFO("exit\n");
4674}
4675
4676static int ipw2100_read_mac_address(struct ipw2100_priv *priv)
4677{
4678 u32 length = ETH_ALEN;
4679 u8 addr[ETH_ALEN];
4680
4681 int err;
4682
4683 err = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ADAPTER_MAC, addr, &length);
4684 if (err) {
4685 IPW_DEBUG_INFO("MAC address read failed\n");
4686 return -EIO;
4687 }
4688
4689 memcpy(priv->net_dev->dev_addr, addr, ETH_ALEN);
4690 IPW_DEBUG_INFO("card MAC is %pM\n", priv->net_dev->dev_addr);
4691
4692 return 0;
4693}
4694
4695/********************************************************************
4696 *
4697 * Firmware Commands
4698 *
4699 ********************************************************************/
4700
4701static int ipw2100_set_mac_address(struct ipw2100_priv *priv, int batch_mode)
4702{
4703 struct host_command cmd = {
4704 .host_command = ADAPTER_ADDRESS,
4705 .host_command_sequence = 0,
4706 .host_command_length = ETH_ALEN
4707 };
4708 int err;
4709
4710 IPW_DEBUG_HC("SET_MAC_ADDRESS\n");
4711
4712 IPW_DEBUG_INFO("enter\n");
4713
4714 if (priv->config & CFG_CUSTOM_MAC) {
4715 memcpy(cmd.host_command_parameters, priv->mac_addr, ETH_ALEN);
4716 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
4717 } else
4718 memcpy(cmd.host_command_parameters, priv->net_dev->dev_addr,
4719 ETH_ALEN);
4720
4721 err = ipw2100_hw_send_command(priv, &cmd);
4722
4723 IPW_DEBUG_INFO("exit\n");
4724 return err;
4725}
4726
4727static int ipw2100_set_port_type(struct ipw2100_priv *priv, u32 port_type,
4728 int batch_mode)
4729{
4730 struct host_command cmd = {
4731 .host_command = PORT_TYPE,
4732 .host_command_sequence = 0,
4733 .host_command_length = sizeof(u32)
4734 };
4735 int err;
4736
4737 switch (port_type) {
4738 case IW_MODE_INFRA:
4739 cmd.host_command_parameters[0] = IPW_BSS;
4740 break;
4741 case IW_MODE_ADHOC:
4742 cmd.host_command_parameters[0] = IPW_IBSS;
4743 break;
4744 }
4745
4746 IPW_DEBUG_HC("PORT_TYPE: %s\n",
4747 port_type == IPW_IBSS ? "Ad-Hoc" : "Managed");
4748
4749 if (!batch_mode) {
4750 err = ipw2100_disable_adapter(priv);
4751 if (err) {
4752 printk(KERN_ERR DRV_NAME
4753 ": %s: Could not disable adapter %d\n",
4754 priv->net_dev->name, err);
4755 return err;
4756 }
4757 }
4758
4759 /* send cmd to firmware */
4760 err = ipw2100_hw_send_command(priv, &cmd);
4761
4762 if (!batch_mode)
4763 ipw2100_enable_adapter(priv);
4764
4765 return err;
4766}
4767
4768static int ipw2100_set_channel(struct ipw2100_priv *priv, u32 channel,
4769 int batch_mode)
4770{
4771 struct host_command cmd = {
4772 .host_command = CHANNEL,
4773 .host_command_sequence = 0,
4774 .host_command_length = sizeof(u32)
4775 };
4776 int err;
4777
4778 cmd.host_command_parameters[0] = channel;
4779
4780 IPW_DEBUG_HC("CHANNEL: %d\n", channel);
4781
4782 /* If BSS then we don't support channel selection */
4783 if (priv->ieee->iw_mode == IW_MODE_INFRA)
4784 return 0;
4785
4786 if ((channel != 0) &&
4787 ((channel < REG_MIN_CHANNEL) || (channel > REG_MAX_CHANNEL)))
4788 return -EINVAL;
4789
4790 if (!batch_mode) {
4791 err = ipw2100_disable_adapter(priv);
4792 if (err)
4793 return err;
4794 }
4795
4796 err = ipw2100_hw_send_command(priv, &cmd);
4797 if (err) {
4798 IPW_DEBUG_INFO("Failed to set channel to %d", channel);
4799 return err;
4800 }
4801
4802 if (channel)
4803 priv->config |= CFG_STATIC_CHANNEL;
4804 else
4805 priv->config &= ~CFG_STATIC_CHANNEL;
4806
4807 priv->channel = channel;
4808
4809 if (!batch_mode) {
4810 err = ipw2100_enable_adapter(priv);
4811 if (err)
4812 return err;
4813 }
4814
4815 return 0;
4816}
4817
4818static int ipw2100_system_config(struct ipw2100_priv *priv, int batch_mode)
4819{
4820 struct host_command cmd = {
4821 .host_command = SYSTEM_CONFIG,
4822 .host_command_sequence = 0,
4823 .host_command_length = 12,
4824 };
4825 u32 ibss_mask, len = sizeof(u32);
4826 int err;
4827
4828 /* Set system configuration */
4829
4830 if (!batch_mode) {
4831 err = ipw2100_disable_adapter(priv);
4832 if (err)
4833 return err;
4834 }
4835
4836 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
4837 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_AUTO_START;
4838
4839 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_MASK |
4840 IPW_CFG_BSS_MASK | IPW_CFG_802_1x_ENABLE;
4841
4842 if (!(priv->config & CFG_LONG_PREAMBLE))
4843 cmd.host_command_parameters[0] |= IPW_CFG_PREAMBLE_AUTO;
4844
4845 err = ipw2100_get_ordinal(priv,
4846 IPW_ORD_EEPROM_IBSS_11B_CHANNELS,
4847 &ibss_mask, &len);
4848 if (err)
4849 ibss_mask = IPW_IBSS_11B_DEFAULT_MASK;
4850
4851 cmd.host_command_parameters[1] = REG_CHANNEL_MASK;
4852 cmd.host_command_parameters[2] = REG_CHANNEL_MASK & ibss_mask;
4853
4854 /* 11b only */
4855 /*cmd.host_command_parameters[0] |= DIVERSITY_ANTENNA_A; */
4856
4857 err = ipw2100_hw_send_command(priv, &cmd);
4858 if (err)
4859 return err;
4860
4861/* If IPv6 is configured in the kernel then we don't want to filter out all
4862 * of the multicast packets as IPv6 needs some. */
4863#if !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
4864 cmd.host_command = ADD_MULTICAST;
4865 cmd.host_command_sequence = 0;
4866 cmd.host_command_length = 0;
4867
4868 ipw2100_hw_send_command(priv, &cmd);
4869#endif
4870 if (!batch_mode) {
4871 err = ipw2100_enable_adapter(priv);
4872 if (err)
4873 return err;
4874 }
4875
4876 return 0;
4877}
4878
4879static int ipw2100_set_tx_rates(struct ipw2100_priv *priv, u32 rate,
4880 int batch_mode)
4881{
4882 struct host_command cmd = {
4883 .host_command = BASIC_TX_RATES,
4884 .host_command_sequence = 0,
4885 .host_command_length = 4
4886 };
4887 int err;
4888
4889 cmd.host_command_parameters[0] = rate & TX_RATE_MASK;
4890
4891 if (!batch_mode) {
4892 err = ipw2100_disable_adapter(priv);
4893 if (err)
4894 return err;
4895 }
4896
4897 /* Set BASIC TX Rate first */
4898 ipw2100_hw_send_command(priv, &cmd);
4899
4900 /* Set TX Rate */
4901 cmd.host_command = TX_RATES;
4902 ipw2100_hw_send_command(priv, &cmd);
4903
4904 /* Set MSDU TX Rate */
4905 cmd.host_command = MSDU_TX_RATES;
4906 ipw2100_hw_send_command(priv, &cmd);
4907
4908 if (!batch_mode) {
4909 err = ipw2100_enable_adapter(priv);
4910 if (err)
4911 return err;
4912 }
4913
4914 priv->tx_rates = rate;
4915
4916 return 0;
4917}
4918
4919static int ipw2100_set_power_mode(struct ipw2100_priv *priv, int power_level)
4920{
4921 struct host_command cmd = {
4922 .host_command = POWER_MODE,
4923 .host_command_sequence = 0,
4924 .host_command_length = 4
4925 };
4926 int err;
4927
4928 cmd.host_command_parameters[0] = power_level;
4929
4930 err = ipw2100_hw_send_command(priv, &cmd);
4931 if (err)
4932 return err;
4933
4934 if (power_level == IPW_POWER_MODE_CAM)
4935 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
4936 else
4937 priv->power_mode = IPW_POWER_ENABLED | power_level;
4938
4939#ifdef IPW2100_TX_POWER
4940 if (priv->port_type == IBSS && priv->adhoc_power != DFTL_IBSS_TX_POWER) {
4941 /* Set beacon interval */
4942 cmd.host_command = TX_POWER_INDEX;
4943 cmd.host_command_parameters[0] = (u32) priv->adhoc_power;
4944
4945 err = ipw2100_hw_send_command(priv, &cmd);
4946 if (err)
4947 return err;
4948 }
4949#endif
4950
4951 return 0;
4952}
4953
4954static int ipw2100_set_rts_threshold(struct ipw2100_priv *priv, u32 threshold)
4955{
4956 struct host_command cmd = {
4957 .host_command = RTS_THRESHOLD,
4958 .host_command_sequence = 0,
4959 .host_command_length = 4
4960 };
4961 int err;
4962
4963 if (threshold & RTS_DISABLED)
4964 cmd.host_command_parameters[0] = MAX_RTS_THRESHOLD;
4965 else
4966 cmd.host_command_parameters[0] = threshold & ~RTS_DISABLED;
4967
4968 err = ipw2100_hw_send_command(priv, &cmd);
4969 if (err)
4970 return err;
4971
4972 priv->rts_threshold = threshold;
4973
4974 return 0;
4975}
4976
4977#if 0
4978int ipw2100_set_fragmentation_threshold(struct ipw2100_priv *priv,
4979 u32 threshold, int batch_mode)
4980{
4981 struct host_command cmd = {
4982 .host_command = FRAG_THRESHOLD,
4983 .host_command_sequence = 0,
4984 .host_command_length = 4,
4985 .host_command_parameters[0] = 0,
4986 };
4987 int err;
4988
4989 if (!batch_mode) {
4990 err = ipw2100_disable_adapter(priv);
4991 if (err)
4992 return err;
4993 }
4994
4995 if (threshold == 0)
4996 threshold = DEFAULT_FRAG_THRESHOLD;
4997 else {
4998 threshold = max(threshold, MIN_FRAG_THRESHOLD);
4999 threshold = min(threshold, MAX_FRAG_THRESHOLD);
5000 }
5001
5002 cmd.host_command_parameters[0] = threshold;
5003
5004 IPW_DEBUG_HC("FRAG_THRESHOLD: %u\n", threshold);
5005
5006 err = ipw2100_hw_send_command(priv, &cmd);
5007
5008 if (!batch_mode)
5009 ipw2100_enable_adapter(priv);
5010
5011 if (!err)
5012 priv->frag_threshold = threshold;
5013
5014 return err;
5015}
5016#endif
5017
5018static int ipw2100_set_short_retry(struct ipw2100_priv *priv, u32 retry)
5019{
5020 struct host_command cmd = {
5021 .host_command = SHORT_RETRY_LIMIT,
5022 .host_command_sequence = 0,
5023 .host_command_length = 4
5024 };
5025 int err;
5026
5027 cmd.host_command_parameters[0] = retry;
5028
5029 err = ipw2100_hw_send_command(priv, &cmd);
5030 if (err)
5031 return err;
5032
5033 priv->short_retry_limit = retry;
5034
5035 return 0;
5036}
5037
5038static int ipw2100_set_long_retry(struct ipw2100_priv *priv, u32 retry)
5039{
5040 struct host_command cmd = {
5041 .host_command = LONG_RETRY_LIMIT,
5042 .host_command_sequence = 0,
5043 .host_command_length = 4
5044 };
5045 int err;
5046
5047 cmd.host_command_parameters[0] = retry;
5048
5049 err = ipw2100_hw_send_command(priv, &cmd);
5050 if (err)
5051 return err;
5052
5053 priv->long_retry_limit = retry;
5054
5055 return 0;
5056}
5057
5058static int ipw2100_set_mandatory_bssid(struct ipw2100_priv *priv, u8 * bssid,
5059 int batch_mode)
5060{
5061 struct host_command cmd = {
5062 .host_command = MANDATORY_BSSID,
5063 .host_command_sequence = 0,
5064 .host_command_length = (bssid == NULL) ? 0 : ETH_ALEN
5065 };
5066 int err;
5067
5068#ifdef CONFIG_IPW2100_DEBUG
5069 if (bssid != NULL)
5070 IPW_DEBUG_HC("MANDATORY_BSSID: %pM\n", bssid);
5071 else
5072 IPW_DEBUG_HC("MANDATORY_BSSID: <clear>\n");
5073#endif
5074 /* if BSSID is empty then we disable mandatory bssid mode */
5075 if (bssid != NULL)
5076 memcpy(cmd.host_command_parameters, bssid, ETH_ALEN);
5077
5078 if (!batch_mode) {
5079 err = ipw2100_disable_adapter(priv);
5080 if (err)
5081 return err;
5082 }
5083
5084 err = ipw2100_hw_send_command(priv, &cmd);
5085
5086 if (!batch_mode)
5087 ipw2100_enable_adapter(priv);
5088
5089 return err;
5090}
5091
5092static int ipw2100_disassociate_bssid(struct ipw2100_priv *priv)
5093{
5094 struct host_command cmd = {
5095 .host_command = DISASSOCIATION_BSSID,
5096 .host_command_sequence = 0,
5097 .host_command_length = ETH_ALEN
5098 };
5099 int err;
5100
5101 IPW_DEBUG_HC("DISASSOCIATION_BSSID\n");
5102
5103 /* The Firmware currently ignores the BSSID and just disassociates from
5104 * the currently associated AP -- but in the off chance that a future
5105 * firmware does use the BSSID provided here, we go ahead and try and
5106 * set it to the currently associated AP's BSSID */
5107 memcpy(cmd.host_command_parameters, priv->bssid, ETH_ALEN);
5108
5109 err = ipw2100_hw_send_command(priv, &cmd);
5110
5111 return err;
5112}
5113
5114static int ipw2100_set_wpa_ie(struct ipw2100_priv *,
5115 struct ipw2100_wpa_assoc_frame *, int)
5116 __attribute__ ((unused));
5117
5118static int ipw2100_set_wpa_ie(struct ipw2100_priv *priv,
5119 struct ipw2100_wpa_assoc_frame *wpa_frame,
5120 int batch_mode)
5121{
5122 struct host_command cmd = {
5123 .host_command = SET_WPA_IE,
5124 .host_command_sequence = 0,
5125 .host_command_length = sizeof(struct ipw2100_wpa_assoc_frame),
5126 };
5127 int err;
5128
5129 IPW_DEBUG_HC("SET_WPA_IE\n");
5130
5131 if (!batch_mode) {
5132 err = ipw2100_disable_adapter(priv);
5133 if (err)
5134 return err;
5135 }
5136
5137 memcpy(cmd.host_command_parameters, wpa_frame,
5138 sizeof(struct ipw2100_wpa_assoc_frame));
5139
5140 err = ipw2100_hw_send_command(priv, &cmd);
5141
5142 if (!batch_mode) {
5143 if (ipw2100_enable_adapter(priv))
5144 err = -EIO;
5145 }
5146
5147 return err;
5148}
5149
5150struct security_info_params {
5151 u32 allowed_ciphers;
5152 u16 version;
5153 u8 auth_mode;
5154 u8 replay_counters_number;
5155 u8 unicast_using_group;
5156} __packed;
5157
5158static int ipw2100_set_security_information(struct ipw2100_priv *priv,
5159 int auth_mode,
5160 int security_level,
5161 int unicast_using_group,
5162 int batch_mode)
5163{
5164 struct host_command cmd = {
5165 .host_command = SET_SECURITY_INFORMATION,
5166 .host_command_sequence = 0,
5167 .host_command_length = sizeof(struct security_info_params)
5168 };
5169 struct security_info_params *security =
5170 (struct security_info_params *)&cmd.host_command_parameters;
5171 int err;
5172 memset(security, 0, sizeof(*security));
5173
5174 /* If shared key AP authentication is turned on, then we need to
5175 * configure the firmware to try and use it.
5176 *
5177 * Actual data encryption/decryption is handled by the host. */
5178 security->auth_mode = auth_mode;
5179 security->unicast_using_group = unicast_using_group;
5180
5181 switch (security_level) {
5182 default:
5183 case SEC_LEVEL_0:
5184 security->allowed_ciphers = IPW_NONE_CIPHER;
5185 break;
5186 case SEC_LEVEL_1:
5187 security->allowed_ciphers = IPW_WEP40_CIPHER |
5188 IPW_WEP104_CIPHER;
5189 break;
5190 case SEC_LEVEL_2:
5191 security->allowed_ciphers = IPW_WEP40_CIPHER |
5192 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER;
5193 break;
5194 case SEC_LEVEL_2_CKIP:
5195 security->allowed_ciphers = IPW_WEP40_CIPHER |
5196 IPW_WEP104_CIPHER | IPW_CKIP_CIPHER;
5197 break;
5198 case SEC_LEVEL_3:
5199 security->allowed_ciphers = IPW_WEP40_CIPHER |
5200 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER | IPW_CCMP_CIPHER;
5201 break;
5202 }
5203
5204 IPW_DEBUG_HC
5205 ("SET_SECURITY_INFORMATION: auth:%d cipher:0x%02X (level %d)\n",
5206 security->auth_mode, security->allowed_ciphers, security_level);
5207
5208 security->replay_counters_number = 0;
5209
5210 if (!batch_mode) {
5211 err = ipw2100_disable_adapter(priv);
5212 if (err)
5213 return err;
5214 }
5215
5216 err = ipw2100_hw_send_command(priv, &cmd);
5217
5218 if (!batch_mode)
5219 ipw2100_enable_adapter(priv);
5220
5221 return err;
5222}
5223
5224static int ipw2100_set_tx_power(struct ipw2100_priv *priv, u32 tx_power)
5225{
5226 struct host_command cmd = {
5227 .host_command = TX_POWER_INDEX,
5228 .host_command_sequence = 0,
5229 .host_command_length = 4
5230 };
5231 int err = 0;
5232 u32 tmp = tx_power;
5233
5234 if (tx_power != IPW_TX_POWER_DEFAULT)
5235 tmp = (tx_power - IPW_TX_POWER_MIN_DBM) * 16 /
5236 (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM);
5237
5238 cmd.host_command_parameters[0] = tmp;
5239
5240 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
5241 err = ipw2100_hw_send_command(priv, &cmd);
5242 if (!err)
5243 priv->tx_power = tx_power;
5244
5245 return 0;
5246}
5247
5248static int ipw2100_set_ibss_beacon_interval(struct ipw2100_priv *priv,
5249 u32 interval, int batch_mode)
5250{
5251 struct host_command cmd = {
5252 .host_command = BEACON_INTERVAL,
5253 .host_command_sequence = 0,
5254 .host_command_length = 4
5255 };
5256 int err;
5257
5258 cmd.host_command_parameters[0] = interval;
5259
5260 IPW_DEBUG_INFO("enter\n");
5261
5262 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5263 if (!batch_mode) {
5264 err = ipw2100_disable_adapter(priv);
5265 if (err)
5266 return err;
5267 }
5268
5269 ipw2100_hw_send_command(priv, &cmd);
5270
5271 if (!batch_mode) {
5272 err = ipw2100_enable_adapter(priv);
5273 if (err)
5274 return err;
5275 }
5276 }
5277
5278 IPW_DEBUG_INFO("exit\n");
5279
5280 return 0;
5281}
5282
5283static void ipw2100_queues_initialize(struct ipw2100_priv *priv)
5284{
5285 ipw2100_tx_initialize(priv);
5286 ipw2100_rx_initialize(priv);
5287 ipw2100_msg_initialize(priv);
5288}
5289
5290static void ipw2100_queues_free(struct ipw2100_priv *priv)
5291{
5292 ipw2100_tx_free(priv);
5293 ipw2100_rx_free(priv);
5294 ipw2100_msg_free(priv);
5295}
5296
5297static int ipw2100_queues_allocate(struct ipw2100_priv *priv)
5298{
5299 if (ipw2100_tx_allocate(priv) ||
5300 ipw2100_rx_allocate(priv) || ipw2100_msg_allocate(priv))
5301 goto fail;
5302
5303 return 0;
5304
5305 fail:
5306 ipw2100_tx_free(priv);
5307 ipw2100_rx_free(priv);
5308 ipw2100_msg_free(priv);
5309 return -ENOMEM;
5310}
5311
5312#define IPW_PRIVACY_CAPABLE 0x0008
5313
5314static int ipw2100_set_wep_flags(struct ipw2100_priv *priv, u32 flags,
5315 int batch_mode)
5316{
5317 struct host_command cmd = {
5318 .host_command = WEP_FLAGS,
5319 .host_command_sequence = 0,
5320 .host_command_length = 4
5321 };
5322 int err;
5323
5324 cmd.host_command_parameters[0] = flags;
5325
5326 IPW_DEBUG_HC("WEP_FLAGS: flags = 0x%08X\n", flags);
5327
5328 if (!batch_mode) {
5329 err = ipw2100_disable_adapter(priv);
5330 if (err) {
5331 printk(KERN_ERR DRV_NAME
5332 ": %s: Could not disable adapter %d\n",
5333 priv->net_dev->name, err);
5334 return err;
5335 }
5336 }
5337
5338 /* send cmd to firmware */
5339 err = ipw2100_hw_send_command(priv, &cmd);
5340
5341 if (!batch_mode)
5342 ipw2100_enable_adapter(priv);
5343
5344 return err;
5345}
5346
5347struct ipw2100_wep_key {
5348 u8 idx;
5349 u8 len;
5350 u8 key[13];
5351};
5352
5353/* Macros to ease up priting WEP keys */
5354#define WEP_FMT_64 "%02X%02X%02X%02X-%02X"
5355#define WEP_FMT_128 "%02X%02X%02X%02X-%02X%02X%02X%02X-%02X%02X%02X"
5356#define WEP_STR_64(x) x[0],x[1],x[2],x[3],x[4]
5357#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]
5358
5359/**
5360 * Set a the wep key
5361 *
5362 * @priv: struct to work on
5363 * @idx: index of the key we want to set
5364 * @key: ptr to the key data to set
5365 * @len: length of the buffer at @key
5366 * @batch_mode: FIXME perform the operation in batch mode, not
5367 * disabling the device.
5368 *
5369 * @returns 0 if OK, < 0 errno code on error.
5370 *
5371 * Fill out a command structure with the new wep key, length an
5372 * index and send it down the wire.
5373 */
5374static int ipw2100_set_key(struct ipw2100_priv *priv,
5375 int idx, char *key, int len, int batch_mode)
5376{
5377 int keylen = len ? (len <= 5 ? 5 : 13) : 0;
5378 struct host_command cmd = {
5379 .host_command = WEP_KEY_INFO,
5380 .host_command_sequence = 0,
5381 .host_command_length = sizeof(struct ipw2100_wep_key),
5382 };
5383 struct ipw2100_wep_key *wep_key = (void *)cmd.host_command_parameters;
5384 int err;
5385
5386 IPW_DEBUG_HC("WEP_KEY_INFO: index = %d, len = %d/%d\n",
5387 idx, keylen, len);
5388
5389 /* NOTE: We don't check cached values in case the firmware was reset
5390 * or some other problem is occurring. If the user is setting the key,
5391 * then we push the change */
5392
5393 wep_key->idx = idx;
5394 wep_key->len = keylen;
5395
5396 if (keylen) {
5397 memcpy(wep_key->key, key, len);
5398 memset(wep_key->key + len, 0, keylen - len);
5399 }
5400
5401 /* Will be optimized out on debug not being configured in */
5402 if (keylen == 0)
5403 IPW_DEBUG_WEP("%s: Clearing key %d\n",
5404 priv->net_dev->name, wep_key->idx);
5405 else if (keylen == 5)
5406 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_64 "\n",
5407 priv->net_dev->name, wep_key->idx, wep_key->len,
5408 WEP_STR_64(wep_key->key));
5409 else
5410 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_128
5411 "\n",
5412 priv->net_dev->name, wep_key->idx, wep_key->len,
5413 WEP_STR_128(wep_key->key));
5414
5415 if (!batch_mode) {
5416 err = ipw2100_disable_adapter(priv);
5417 /* FIXME: IPG: shouldn't this prink be in _disable_adapter()? */
5418 if (err) {
5419 printk(KERN_ERR DRV_NAME
5420 ": %s: Could not disable adapter %d\n",
5421 priv->net_dev->name, err);
5422 return err;
5423 }
5424 }
5425
5426 /* send cmd to firmware */
5427 err = ipw2100_hw_send_command(priv, &cmd);
5428
5429 if (!batch_mode) {
5430 int err2 = ipw2100_enable_adapter(priv);
5431 if (err == 0)
5432 err = err2;
5433 }
5434 return err;
5435}
5436
5437static int ipw2100_set_key_index(struct ipw2100_priv *priv,
5438 int idx, int batch_mode)
5439{
5440 struct host_command cmd = {
5441 .host_command = WEP_KEY_INDEX,
5442 .host_command_sequence = 0,
5443 .host_command_length = 4,
5444 .host_command_parameters = {idx},
5445 };
5446 int err;
5447
5448 IPW_DEBUG_HC("WEP_KEY_INDEX: index = %d\n", idx);
5449
5450 if (idx < 0 || idx > 3)
5451 return -EINVAL;
5452
5453 if (!batch_mode) {
5454 err = ipw2100_disable_adapter(priv);
5455 if (err) {
5456 printk(KERN_ERR DRV_NAME
5457 ": %s: Could not disable adapter %d\n",
5458 priv->net_dev->name, err);
5459 return err;
5460 }
5461 }
5462
5463 /* send cmd to firmware */
5464 err = ipw2100_hw_send_command(priv, &cmd);
5465
5466 if (!batch_mode)
5467 ipw2100_enable_adapter(priv);
5468
5469 return err;
5470}
5471
5472static int ipw2100_configure_security(struct ipw2100_priv *priv, int batch_mode)
5473{
5474 int i, err, auth_mode, sec_level, use_group;
5475
5476 if (!(priv->status & STATUS_RUNNING))
5477 return 0;
5478
5479 if (!batch_mode) {
5480 err = ipw2100_disable_adapter(priv);
5481 if (err)
5482 return err;
5483 }
5484
5485 if (!priv->ieee->sec.enabled) {
5486 err =
5487 ipw2100_set_security_information(priv, IPW_AUTH_OPEN,
5488 SEC_LEVEL_0, 0, 1);
5489 } else {
5490 auth_mode = IPW_AUTH_OPEN;
5491 if (priv->ieee->sec.flags & SEC_AUTH_MODE) {
5492 if (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY)
5493 auth_mode = IPW_AUTH_SHARED;
5494 else if (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP)
5495 auth_mode = IPW_AUTH_LEAP_CISCO_ID;
5496 }
5497
5498 sec_level = SEC_LEVEL_0;
5499 if (priv->ieee->sec.flags & SEC_LEVEL)
5500 sec_level = priv->ieee->sec.level;
5501
5502 use_group = 0;
5503 if (priv->ieee->sec.flags & SEC_UNICAST_GROUP)
5504 use_group = priv->ieee->sec.unicast_uses_group;
5505
5506 err =
5507 ipw2100_set_security_information(priv, auth_mode, sec_level,
5508 use_group, 1);
5509 }
5510
5511 if (err)
5512 goto exit;
5513
5514 if (priv->ieee->sec.enabled) {
5515 for (i = 0; i < 4; i++) {
5516 if (!(priv->ieee->sec.flags & (1 << i))) {
5517 memset(priv->ieee->sec.keys[i], 0, WEP_KEY_LEN);
5518 priv->ieee->sec.key_sizes[i] = 0;
5519 } else {
5520 err = ipw2100_set_key(priv, i,
5521 priv->ieee->sec.keys[i],
5522 priv->ieee->sec.
5523 key_sizes[i], 1);
5524 if (err)
5525 goto exit;
5526 }
5527 }
5528
5529 ipw2100_set_key_index(priv, priv->ieee->crypt_info.tx_keyidx, 1);
5530 }
5531
5532 /* Always enable privacy so the Host can filter WEP packets if
5533 * encrypted data is sent up */
5534 err =
5535 ipw2100_set_wep_flags(priv,
5536 priv->ieee->sec.
5537 enabled ? IPW_PRIVACY_CAPABLE : 0, 1);
5538 if (err)
5539 goto exit;
5540
5541 priv->status &= ~STATUS_SECURITY_UPDATED;
5542
5543 exit:
5544 if (!batch_mode)
5545 ipw2100_enable_adapter(priv);
5546
5547 return err;
5548}
5549
5550static void ipw2100_security_work(struct work_struct *work)
5551{
5552 struct ipw2100_priv *priv =
5553 container_of(work, struct ipw2100_priv, security_work.work);
5554
5555 /* If we happen to have reconnected before we get a chance to
5556 * process this, then update the security settings--which causes
5557 * a disassociation to occur */
5558 if (!(priv->status & STATUS_ASSOCIATED) &&
5559 priv->status & STATUS_SECURITY_UPDATED)
5560 ipw2100_configure_security(priv, 0);
5561}
5562
5563static void shim__set_security(struct net_device *dev,
5564 struct libipw_security *sec)
5565{
5566 struct ipw2100_priv *priv = libipw_priv(dev);
5567 int i;
5568
5569 mutex_lock(&priv->action_mutex);
5570 if (!(priv->status & STATUS_INITIALIZED))
5571 goto done;
5572
5573 for (i = 0; i < 4; i++) {
5574 if (sec->flags & (1 << i)) {
5575 priv->ieee->sec.key_sizes[i] = sec->key_sizes[i];
5576 if (sec->key_sizes[i] == 0)
5577 priv->ieee->sec.flags &= ~(1 << i);
5578 else
5579 memcpy(priv->ieee->sec.keys[i], sec->keys[i],
5580 sec->key_sizes[i]);
5581 if (sec->level == SEC_LEVEL_1) {
5582 priv->ieee->sec.flags |= (1 << i);
5583 priv->status |= STATUS_SECURITY_UPDATED;
5584 } else
5585 priv->ieee->sec.flags &= ~(1 << i);
5586 }
5587 }
5588
5589 if ((sec->flags & SEC_ACTIVE_KEY) &&
5590 priv->ieee->sec.active_key != sec->active_key) {
5591 priv->ieee->sec.active_key = sec->active_key;
5592 priv->ieee->sec.flags |= SEC_ACTIVE_KEY;
5593 priv->status |= STATUS_SECURITY_UPDATED;
5594 }
5595
5596 if ((sec->flags & SEC_AUTH_MODE) &&
5597 (priv->ieee->sec.auth_mode != sec->auth_mode)) {
5598 priv->ieee->sec.auth_mode = sec->auth_mode;
5599 priv->ieee->sec.flags |= SEC_AUTH_MODE;
5600 priv->status |= STATUS_SECURITY_UPDATED;
5601 }
5602
5603 if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) {
5604 priv->ieee->sec.flags |= SEC_ENABLED;
5605 priv->ieee->sec.enabled = sec->enabled;
5606 priv->status |= STATUS_SECURITY_UPDATED;
5607 }
5608
5609 if (sec->flags & SEC_ENCRYPT)
5610 priv->ieee->sec.encrypt = sec->encrypt;
5611
5612 if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) {
5613 priv->ieee->sec.level = sec->level;
5614 priv->ieee->sec.flags |= SEC_LEVEL;
5615 priv->status |= STATUS_SECURITY_UPDATED;
5616 }
5617
5618 IPW_DEBUG_WEP("Security flags: %c %c%c%c%c %c%c%c%c\n",
5619 priv->ieee->sec.flags & (1 << 8) ? '1' : '0',
5620 priv->ieee->sec.flags & (1 << 7) ? '1' : '0',
5621 priv->ieee->sec.flags & (1 << 6) ? '1' : '0',
5622 priv->ieee->sec.flags & (1 << 5) ? '1' : '0',
5623 priv->ieee->sec.flags & (1 << 4) ? '1' : '0',
5624 priv->ieee->sec.flags & (1 << 3) ? '1' : '0',
5625 priv->ieee->sec.flags & (1 << 2) ? '1' : '0',
5626 priv->ieee->sec.flags & (1 << 1) ? '1' : '0',
5627 priv->ieee->sec.flags & (1 << 0) ? '1' : '0');
5628
5629/* As a temporary work around to enable WPA until we figure out why
5630 * wpa_supplicant toggles the security capability of the driver, which
5631 * forces a disassociation with force_update...
5632 *
5633 * if (force_update || !(priv->status & STATUS_ASSOCIATED))*/
5634 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
5635 ipw2100_configure_security(priv, 0);
5636 done:
5637 mutex_unlock(&priv->action_mutex);
5638}
5639
5640static int ipw2100_adapter_setup(struct ipw2100_priv *priv)
5641{
5642 int err;
5643 int batch_mode = 1;
5644 u8 *bssid;
5645
5646 IPW_DEBUG_INFO("enter\n");
5647
5648 err = ipw2100_disable_adapter(priv);
5649 if (err)
5650 return err;
5651#ifdef CONFIG_IPW2100_MONITOR
5652 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
5653 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5654 if (err)
5655 return err;
5656
5657 IPW_DEBUG_INFO("exit\n");
5658
5659 return 0;
5660 }
5661#endif /* CONFIG_IPW2100_MONITOR */
5662
5663 err = ipw2100_read_mac_address(priv);
5664 if (err)
5665 return -EIO;
5666
5667 err = ipw2100_set_mac_address(priv, batch_mode);
5668 if (err)
5669 return err;
5670
5671 err = ipw2100_set_port_type(priv, priv->ieee->iw_mode, batch_mode);
5672 if (err)
5673 return err;
5674
5675 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5676 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5677 if (err)
5678 return err;
5679 }
5680
5681 err = ipw2100_system_config(priv, batch_mode);
5682 if (err)
5683 return err;
5684
5685 err = ipw2100_set_tx_rates(priv, priv->tx_rates, batch_mode);
5686 if (err)
5687 return err;
5688
5689 /* Default to power mode OFF */
5690 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
5691 if (err)
5692 return err;
5693
5694 err = ipw2100_set_rts_threshold(priv, priv->rts_threshold);
5695 if (err)
5696 return err;
5697
5698 if (priv->config & CFG_STATIC_BSSID)
5699 bssid = priv->bssid;
5700 else
5701 bssid = NULL;
5702 err = ipw2100_set_mandatory_bssid(priv, bssid, batch_mode);
5703 if (err)
5704 return err;
5705
5706 if (priv->config & CFG_STATIC_ESSID)
5707 err = ipw2100_set_essid(priv, priv->essid, priv->essid_len,
5708 batch_mode);
5709 else
5710 err = ipw2100_set_essid(priv, NULL, 0, batch_mode);
5711 if (err)
5712 return err;
5713
5714 err = ipw2100_configure_security(priv, batch_mode);
5715 if (err)
5716 return err;
5717
5718 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5719 err =
5720 ipw2100_set_ibss_beacon_interval(priv,
5721 priv->beacon_interval,
5722 batch_mode);
5723 if (err)
5724 return err;
5725
5726 err = ipw2100_set_tx_power(priv, priv->tx_power);
5727 if (err)
5728 return err;
5729 }
5730
5731 /*
5732 err = ipw2100_set_fragmentation_threshold(
5733 priv, priv->frag_threshold, batch_mode);
5734 if (err)
5735 return err;
5736 */
5737
5738 IPW_DEBUG_INFO("exit\n");
5739
5740 return 0;
5741}
5742
5743/*************************************************************************
5744 *
5745 * EXTERNALLY CALLED METHODS
5746 *
5747 *************************************************************************/
5748
5749/* This method is called by the network layer -- not to be confused with
5750 * ipw2100_set_mac_address() declared above called by this driver (and this
5751 * method as well) to talk to the firmware */
5752static int ipw2100_set_address(struct net_device *dev, void *p)
5753{
5754 struct ipw2100_priv *priv = libipw_priv(dev);
5755 struct sockaddr *addr = p;
5756 int err = 0;
5757
5758 if (!is_valid_ether_addr(addr->sa_data))
5759 return -EADDRNOTAVAIL;
5760
5761 mutex_lock(&priv->action_mutex);
5762
5763 priv->config |= CFG_CUSTOM_MAC;
5764 memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
5765
5766 err = ipw2100_set_mac_address(priv, 0);
5767 if (err)
5768 goto done;
5769
5770 priv->reset_backoff = 0;
5771 mutex_unlock(&priv->action_mutex);
5772 ipw2100_reset_adapter(&priv->reset_work.work);
5773 return 0;
5774
5775 done:
5776 mutex_unlock(&priv->action_mutex);
5777 return err;
5778}
5779
5780static int ipw2100_open(struct net_device *dev)
5781{
5782 struct ipw2100_priv *priv = libipw_priv(dev);
5783 unsigned long flags;
5784 IPW_DEBUG_INFO("dev->open\n");
5785
5786 spin_lock_irqsave(&priv->low_lock, flags);
5787 if (priv->status & STATUS_ASSOCIATED) {
5788 netif_carrier_on(dev);
5789 netif_start_queue(dev);
5790 }
5791 spin_unlock_irqrestore(&priv->low_lock, flags);
5792
5793 return 0;
5794}
5795
5796static int ipw2100_close(struct net_device *dev)
5797{
5798 struct ipw2100_priv *priv = libipw_priv(dev);
5799 unsigned long flags;
5800 struct list_head *element;
5801 struct ipw2100_tx_packet *packet;
5802
5803 IPW_DEBUG_INFO("enter\n");
5804
5805 spin_lock_irqsave(&priv->low_lock, flags);
5806
5807 if (priv->status & STATUS_ASSOCIATED)
5808 netif_carrier_off(dev);
5809 netif_stop_queue(dev);
5810
5811 /* Flush the TX queue ... */
5812 while (!list_empty(&priv->tx_pend_list)) {
5813 element = priv->tx_pend_list.next;
5814 packet = list_entry(element, struct ipw2100_tx_packet, list);
5815
5816 list_del(element);
5817 DEC_STAT(&priv->tx_pend_stat);
5818
5819 libipw_txb_free(packet->info.d_struct.txb);
5820 packet->info.d_struct.txb = NULL;
5821
5822 list_add_tail(element, &priv->tx_free_list);
5823 INC_STAT(&priv->tx_free_stat);
5824 }
5825 spin_unlock_irqrestore(&priv->low_lock, flags);
5826
5827 IPW_DEBUG_INFO("exit\n");
5828
5829 return 0;
5830}
5831
5832/*
5833 * TODO: Fix this function... its just wrong
5834 */
5835static void ipw2100_tx_timeout(struct net_device *dev, unsigned int txqueue)
5836{
5837 struct ipw2100_priv *priv = libipw_priv(dev);
5838
5839 dev->stats.tx_errors++;
5840
5841#ifdef CONFIG_IPW2100_MONITOR
5842 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
5843 return;
5844#endif
5845
5846 IPW_DEBUG_INFO("%s: TX timed out. Scheduling firmware restart.\n",
5847 dev->name);
5848 schedule_reset(priv);
5849}
5850
5851static int ipw2100_wpa_enable(struct ipw2100_priv *priv, int value)
5852{
5853 /* This is called when wpa_supplicant loads and closes the driver
5854 * interface. */
5855 priv->ieee->wpa_enabled = value;
5856 return 0;
5857}
5858
5859static int ipw2100_wpa_set_auth_algs(struct ipw2100_priv *priv, int value)
5860{
5861
5862 struct libipw_device *ieee = priv->ieee;
5863 struct libipw_security sec = {
5864 .flags = SEC_AUTH_MODE,
5865 };
5866 int ret = 0;
5867
5868 if (value & IW_AUTH_ALG_SHARED_KEY) {
5869 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
5870 ieee->open_wep = 0;
5871 } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
5872 sec.auth_mode = WLAN_AUTH_OPEN;
5873 ieee->open_wep = 1;
5874 } else if (value & IW_AUTH_ALG_LEAP) {
5875 sec.auth_mode = WLAN_AUTH_LEAP;
5876 ieee->open_wep = 1;
5877 } else
5878 return -EINVAL;
5879
5880 if (ieee->set_security)
5881 ieee->set_security(ieee->dev, &sec);
5882 else
5883 ret = -EOPNOTSUPP;
5884
5885 return ret;
5886}
5887
5888static void ipw2100_wpa_assoc_frame(struct ipw2100_priv *priv,
5889 char *wpa_ie, int wpa_ie_len)
5890{
5891
5892 struct ipw2100_wpa_assoc_frame frame;
5893
5894 frame.fixed_ie_mask = 0;
5895
5896 /* copy WPA IE */
5897 memcpy(frame.var_ie, wpa_ie, wpa_ie_len);
5898 frame.var_ie_len = wpa_ie_len;
5899
5900 /* make sure WPA is enabled */
5901 ipw2100_wpa_enable(priv, 1);
5902 ipw2100_set_wpa_ie(priv, &frame, 0);
5903}
5904
5905static void ipw_ethtool_get_drvinfo(struct net_device *dev,
5906 struct ethtool_drvinfo *info)
5907{
5908 struct ipw2100_priv *priv = libipw_priv(dev);
5909 char fw_ver[64], ucode_ver[64];
5910
5911 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
5912 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
5913
5914 ipw2100_get_fwversion(priv, fw_ver, sizeof(fw_ver));
5915 ipw2100_get_ucodeversion(priv, ucode_ver, sizeof(ucode_ver));
5916
5917 snprintf(info->fw_version, sizeof(info->fw_version), "%s:%d:%s",
5918 fw_ver, priv->eeprom_version, ucode_ver);
5919
5920 strlcpy(info->bus_info, pci_name(priv->pci_dev),
5921 sizeof(info->bus_info));
5922}
5923
5924static u32 ipw2100_ethtool_get_link(struct net_device *dev)
5925{
5926 struct ipw2100_priv *priv = libipw_priv(dev);
5927 return (priv->status & STATUS_ASSOCIATED) ? 1 : 0;
5928}
5929
5930static const struct ethtool_ops ipw2100_ethtool_ops = {
5931 .get_link = ipw2100_ethtool_get_link,
5932 .get_drvinfo = ipw_ethtool_get_drvinfo,
5933};
5934
5935static void ipw2100_hang_check(struct work_struct *work)
5936{
5937 struct ipw2100_priv *priv =
5938 container_of(work, struct ipw2100_priv, hang_check.work);
5939 unsigned long flags;
5940 u32 rtc = 0xa5a5a5a5;
5941 u32 len = sizeof(rtc);
5942 int restart = 0;
5943
5944 spin_lock_irqsave(&priv->low_lock, flags);
5945
5946 if (priv->fatal_error != 0) {
5947 /* If fatal_error is set then we need to restart */
5948 IPW_DEBUG_INFO("%s: Hardware fatal error detected.\n",
5949 priv->net_dev->name);
5950
5951 restart = 1;
5952 } else if (ipw2100_get_ordinal(priv, IPW_ORD_RTC_TIME, &rtc, &len) ||
5953 (rtc == priv->last_rtc)) {
5954 /* Check if firmware is hung */
5955 IPW_DEBUG_INFO("%s: Firmware RTC stalled.\n",
5956 priv->net_dev->name);
5957
5958 restart = 1;
5959 }
5960
5961 if (restart) {
5962 /* Kill timer */
5963 priv->stop_hang_check = 1;
5964 priv->hangs++;
5965
5966 /* Restart the NIC */
5967 schedule_reset(priv);
5968 }
5969
5970 priv->last_rtc = rtc;
5971
5972 if (!priv->stop_hang_check)
5973 schedule_delayed_work(&priv->hang_check, HZ / 2);
5974
5975 spin_unlock_irqrestore(&priv->low_lock, flags);
5976}
5977
5978static void ipw2100_rf_kill(struct work_struct *work)
5979{
5980 struct ipw2100_priv *priv =
5981 container_of(work, struct ipw2100_priv, rf_kill.work);
5982 unsigned long flags;
5983
5984 spin_lock_irqsave(&priv->low_lock, flags);
5985
5986 if (rf_kill_active(priv)) {
5987 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
5988 if (!priv->stop_rf_kill)
5989 schedule_delayed_work(&priv->rf_kill,
5990 round_jiffies_relative(HZ));
5991 goto exit_unlock;
5992 }
5993
5994 /* RF Kill is now disabled, so bring the device back up */
5995
5996 if (!(priv->status & STATUS_RF_KILL_MASK)) {
5997 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
5998 "device\n");
5999 schedule_reset(priv);
6000 } else
6001 IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still "
6002 "enabled\n");
6003
6004 exit_unlock:
6005 spin_unlock_irqrestore(&priv->low_lock, flags);
6006}
6007
6008static void ipw2100_irq_tasklet(unsigned long data);
6009
6010static const struct net_device_ops ipw2100_netdev_ops = {
6011 .ndo_open = ipw2100_open,
6012 .ndo_stop = ipw2100_close,
6013 .ndo_start_xmit = libipw_xmit,
6014 .ndo_tx_timeout = ipw2100_tx_timeout,
6015 .ndo_set_mac_address = ipw2100_set_address,
6016 .ndo_validate_addr = eth_validate_addr,
6017};
6018
6019/* Look into using netdev destructor to shutdown libipw? */
6020
6021static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
6022 void __iomem * ioaddr)
6023{
6024 struct ipw2100_priv *priv;
6025 struct net_device *dev;
6026
6027 dev = alloc_libipw(sizeof(struct ipw2100_priv), 0);
6028 if (!dev)
6029 return NULL;
6030 priv = libipw_priv(dev);
6031 priv->ieee = netdev_priv(dev);
6032 priv->pci_dev = pci_dev;
6033 priv->net_dev = dev;
6034 priv->ioaddr = ioaddr;
6035
6036 priv->ieee->hard_start_xmit = ipw2100_tx;
6037 priv->ieee->set_security = shim__set_security;
6038
6039 priv->ieee->perfect_rssi = -20;
6040 priv->ieee->worst_rssi = -85;
6041
6042 dev->netdev_ops = &ipw2100_netdev_ops;
6043 dev->ethtool_ops = &ipw2100_ethtool_ops;
6044 dev->wireless_handlers = &ipw2100_wx_handler_def;
6045 priv->wireless_data.libipw = priv->ieee;
6046 dev->wireless_data = &priv->wireless_data;
6047 dev->watchdog_timeo = 3 * HZ;
6048 dev->irq = 0;
6049 dev->min_mtu = 68;
6050 dev->max_mtu = LIBIPW_DATA_LEN;
6051
6052 /* NOTE: We don't use the wireless_handlers hook
6053 * in dev as the system will start throwing WX requests
6054 * to us before we're actually initialized and it just
6055 * ends up causing problems. So, we just handle
6056 * the WX extensions through the ipw2100_ioctl interface */
6057
6058 /* memset() puts everything to 0, so we only have explicitly set
6059 * those values that need to be something else */
6060
6061 /* If power management is turned on, default to AUTO mode */
6062 priv->power_mode = IPW_POWER_AUTO;
6063
6064#ifdef CONFIG_IPW2100_MONITOR
6065 priv->config |= CFG_CRC_CHECK;
6066#endif
6067 priv->ieee->wpa_enabled = 0;
6068 priv->ieee->drop_unencrypted = 0;
6069 priv->ieee->privacy_invoked = 0;
6070 priv->ieee->ieee802_1x = 1;
6071
6072 /* Set module parameters */
6073 switch (network_mode) {
6074 case 1:
6075 priv->ieee->iw_mode = IW_MODE_ADHOC;
6076 break;
6077#ifdef CONFIG_IPW2100_MONITOR
6078 case 2:
6079 priv->ieee->iw_mode = IW_MODE_MONITOR;
6080 break;
6081#endif
6082 default:
6083 case 0:
6084 priv->ieee->iw_mode = IW_MODE_INFRA;
6085 break;
6086 }
6087
6088 if (disable == 1)
6089 priv->status |= STATUS_RF_KILL_SW;
6090
6091 if (channel != 0 &&
6092 ((channel >= REG_MIN_CHANNEL) && (channel <= REG_MAX_CHANNEL))) {
6093 priv->config |= CFG_STATIC_CHANNEL;
6094 priv->channel = channel;
6095 }
6096
6097 if (associate)
6098 priv->config |= CFG_ASSOCIATE;
6099
6100 priv->beacon_interval = DEFAULT_BEACON_INTERVAL;
6101 priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
6102 priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
6103 priv->rts_threshold = DEFAULT_RTS_THRESHOLD | RTS_DISABLED;
6104 priv->frag_threshold = DEFAULT_FTS | FRAG_DISABLED;
6105 priv->tx_power = IPW_TX_POWER_DEFAULT;
6106 priv->tx_rates = DEFAULT_TX_RATES;
6107
6108 strcpy(priv->nick, "ipw2100");
6109
6110 spin_lock_init(&priv->low_lock);
6111 mutex_init(&priv->action_mutex);
6112 mutex_init(&priv->adapter_mutex);
6113
6114 init_waitqueue_head(&priv->wait_command_queue);
6115
6116 netif_carrier_off(dev);
6117
6118 INIT_LIST_HEAD(&priv->msg_free_list);
6119 INIT_LIST_HEAD(&priv->msg_pend_list);
6120 INIT_STAT(&priv->msg_free_stat);
6121 INIT_STAT(&priv->msg_pend_stat);
6122
6123 INIT_LIST_HEAD(&priv->tx_free_list);
6124 INIT_LIST_HEAD(&priv->tx_pend_list);
6125 INIT_STAT(&priv->tx_free_stat);
6126 INIT_STAT(&priv->tx_pend_stat);
6127
6128 INIT_LIST_HEAD(&priv->fw_pend_list);
6129 INIT_STAT(&priv->fw_pend_stat);
6130
6131 INIT_DELAYED_WORK(&priv->reset_work, ipw2100_reset_adapter);
6132 INIT_DELAYED_WORK(&priv->security_work, ipw2100_security_work);
6133 INIT_DELAYED_WORK(&priv->wx_event_work, ipw2100_wx_event_work);
6134 INIT_DELAYED_WORK(&priv->hang_check, ipw2100_hang_check);
6135 INIT_DELAYED_WORK(&priv->rf_kill, ipw2100_rf_kill);
6136 INIT_DELAYED_WORK(&priv->scan_event, ipw2100_scan_event);
6137
6138 tasklet_init(&priv->irq_tasklet,
6139 ipw2100_irq_tasklet, (unsigned long)priv);
6140
6141 /* NOTE: We do not start the deferred work for status checks yet */
6142 priv->stop_rf_kill = 1;
6143 priv->stop_hang_check = 1;
6144
6145 return dev;
6146}
6147
6148static int ipw2100_pci_init_one(struct pci_dev *pci_dev,
6149 const struct pci_device_id *ent)
6150{
6151 void __iomem *ioaddr;
6152 struct net_device *dev = NULL;
6153 struct ipw2100_priv *priv = NULL;
6154 int err = 0;
6155 int registered = 0;
6156 u32 val;
6157
6158 IPW_DEBUG_INFO("enter\n");
6159
6160 if (!(pci_resource_flags(pci_dev, 0) & IORESOURCE_MEM)) {
6161 IPW_DEBUG_INFO("weird - resource type is not memory\n");
6162 err = -ENODEV;
6163 goto out;
6164 }
6165
6166 ioaddr = pci_iomap(pci_dev, 0, 0);
6167 if (!ioaddr) {
6168 printk(KERN_WARNING DRV_NAME
6169 "Error calling ioremap.\n");
6170 err = -EIO;
6171 goto fail;
6172 }
6173
6174 /* allocate and initialize our net_device */
6175 dev = ipw2100_alloc_device(pci_dev, ioaddr);
6176 if (!dev) {
6177 printk(KERN_WARNING DRV_NAME
6178 "Error calling ipw2100_alloc_device.\n");
6179 err = -ENOMEM;
6180 goto fail;
6181 }
6182
6183 /* set up PCI mappings for device */
6184 err = pci_enable_device(pci_dev);
6185 if (err) {
6186 printk(KERN_WARNING DRV_NAME
6187 "Error calling pci_enable_device.\n");
6188 return err;
6189 }
6190
6191 priv = libipw_priv(dev);
6192
6193 pci_set_master(pci_dev);
6194 pci_set_drvdata(pci_dev, priv);
6195
6196 err = dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32));
6197 if (err) {
6198 printk(KERN_WARNING DRV_NAME
6199 "Error calling pci_set_dma_mask.\n");
6200 pci_disable_device(pci_dev);
6201 return err;
6202 }
6203
6204 err = pci_request_regions(pci_dev, DRV_NAME);
6205 if (err) {
6206 printk(KERN_WARNING DRV_NAME
6207 "Error calling pci_request_regions.\n");
6208 pci_disable_device(pci_dev);
6209 return err;
6210 }
6211
6212 /* We disable the RETRY_TIMEOUT register (0x41) to keep
6213 * PCI Tx retries from interfering with C3 CPU state */
6214 pci_read_config_dword(pci_dev, 0x40, &val);
6215 if ((val & 0x0000ff00) != 0)
6216 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6217
6218 if (!ipw2100_hw_is_adapter_in_system(dev)) {
6219 printk(KERN_WARNING DRV_NAME
6220 "Device not found via register read.\n");
6221 err = -ENODEV;
6222 goto fail;
6223 }
6224
6225 SET_NETDEV_DEV(dev, &pci_dev->dev);
6226
6227 /* Force interrupts to be shut off on the device */
6228 priv->status |= STATUS_INT_ENABLED;
6229 ipw2100_disable_interrupts(priv);
6230
6231 /* Allocate and initialize the Tx/Rx queues and lists */
6232 if (ipw2100_queues_allocate(priv)) {
6233 printk(KERN_WARNING DRV_NAME
6234 "Error calling ipw2100_queues_allocate.\n");
6235 err = -ENOMEM;
6236 goto fail;
6237 }
6238 ipw2100_queues_initialize(priv);
6239
6240 err = request_irq(pci_dev->irq,
6241 ipw2100_interrupt, IRQF_SHARED, dev->name, priv);
6242 if (err) {
6243 printk(KERN_WARNING DRV_NAME
6244 "Error calling request_irq: %d.\n", pci_dev->irq);
6245 goto fail;
6246 }
6247 dev->irq = pci_dev->irq;
6248
6249 IPW_DEBUG_INFO("Attempting to register device...\n");
6250
6251 printk(KERN_INFO DRV_NAME
6252 ": Detected Intel PRO/Wireless 2100 Network Connection\n");
6253
6254 err = ipw2100_up(priv, 1);
6255 if (err)
6256 goto fail;
6257
6258 err = ipw2100_wdev_init(dev);
6259 if (err)
6260 goto fail;
6261 registered = 1;
6262
6263 /* Bring up the interface. Pre 0.46, after we registered the
6264 * network device we would call ipw2100_up. This introduced a race
6265 * condition with newer hotplug configurations (network was coming
6266 * up and making calls before the device was initialized).
6267 */
6268 err = register_netdev(dev);
6269 if (err) {
6270 printk(KERN_WARNING DRV_NAME
6271 "Error calling register_netdev.\n");
6272 goto fail;
6273 }
6274 registered = 2;
6275
6276 mutex_lock(&priv->action_mutex);
6277
6278 IPW_DEBUG_INFO("%s: Bound to %s\n", dev->name, pci_name(pci_dev));
6279
6280 /* perform this after register_netdev so that dev->name is set */
6281 err = sysfs_create_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6282 if (err)
6283 goto fail_unlock;
6284
6285 /* If the RF Kill switch is disabled, go ahead and complete the
6286 * startup sequence */
6287 if (!(priv->status & STATUS_RF_KILL_MASK)) {
6288 /* Enable the adapter - sends HOST_COMPLETE */
6289 if (ipw2100_enable_adapter(priv)) {
6290 printk(KERN_WARNING DRV_NAME
6291 ": %s: failed in call to enable adapter.\n",
6292 priv->net_dev->name);
6293 ipw2100_hw_stop_adapter(priv);
6294 err = -EIO;
6295 goto fail_unlock;
6296 }
6297
6298 /* Start a scan . . . */
6299 ipw2100_set_scan_options(priv);
6300 ipw2100_start_scan(priv);
6301 }
6302
6303 IPW_DEBUG_INFO("exit\n");
6304
6305 priv->status |= STATUS_INITIALIZED;
6306
6307 mutex_unlock(&priv->action_mutex);
6308out:
6309 return err;
6310
6311 fail_unlock:
6312 mutex_unlock(&priv->action_mutex);
6313 fail:
6314 if (dev) {
6315 if (registered >= 2)
6316 unregister_netdev(dev);
6317
6318 if (registered) {
6319 wiphy_unregister(priv->ieee->wdev.wiphy);
6320 kfree(priv->ieee->bg_band.channels);
6321 }
6322
6323 ipw2100_hw_stop_adapter(priv);
6324
6325 ipw2100_disable_interrupts(priv);
6326
6327 if (dev->irq)
6328 free_irq(dev->irq, priv);
6329
6330 ipw2100_kill_works(priv);
6331
6332 /* These are safe to call even if they weren't allocated */
6333 ipw2100_queues_free(priv);
6334 sysfs_remove_group(&pci_dev->dev.kobj,
6335 &ipw2100_attribute_group);
6336
6337 free_libipw(dev, 0);
6338 }
6339
6340 pci_iounmap(pci_dev, ioaddr);
6341
6342 pci_release_regions(pci_dev);
6343 pci_disable_device(pci_dev);
6344 goto out;
6345}
6346
6347static void ipw2100_pci_remove_one(struct pci_dev *pci_dev)
6348{
6349 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6350 struct net_device *dev = priv->net_dev;
6351
6352 mutex_lock(&priv->action_mutex);
6353
6354 priv->status &= ~STATUS_INITIALIZED;
6355
6356 sysfs_remove_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6357
6358#ifdef CONFIG_PM
6359 if (ipw2100_firmware.version)
6360 ipw2100_release_firmware(priv, &ipw2100_firmware);
6361#endif
6362 /* Take down the hardware */
6363 ipw2100_down(priv);
6364
6365 /* Release the mutex so that the network subsystem can
6366 * complete any needed calls into the driver... */
6367 mutex_unlock(&priv->action_mutex);
6368
6369 /* Unregister the device first - this results in close()
6370 * being called if the device is open. If we free storage
6371 * first, then close() will crash.
6372 * FIXME: remove the comment above. */
6373 unregister_netdev(dev);
6374
6375 ipw2100_kill_works(priv);
6376
6377 ipw2100_queues_free(priv);
6378
6379 /* Free potential debugging firmware snapshot */
6380 ipw2100_snapshot_free(priv);
6381
6382 free_irq(dev->irq, priv);
6383
6384 pci_iounmap(pci_dev, priv->ioaddr);
6385
6386 /* wiphy_unregister needs to be here, before free_libipw */
6387 wiphy_unregister(priv->ieee->wdev.wiphy);
6388 kfree(priv->ieee->bg_band.channels);
6389 free_libipw(dev, 0);
6390
6391 pci_release_regions(pci_dev);
6392 pci_disable_device(pci_dev);
6393
6394 IPW_DEBUG_INFO("exit\n");
6395}
6396
6397static int __maybe_unused ipw2100_suspend(struct device *dev_d)
6398{
6399 struct ipw2100_priv *priv = dev_get_drvdata(dev_d);
6400 struct net_device *dev = priv->net_dev;
6401
6402 IPW_DEBUG_INFO("%s: Going into suspend...\n", dev->name);
6403
6404 mutex_lock(&priv->action_mutex);
6405 if (priv->status & STATUS_INITIALIZED) {
6406 /* Take down the device; powers it off, etc. */
6407 ipw2100_down(priv);
6408 }
6409
6410 /* Remove the PRESENT state of the device */
6411 netif_device_detach(dev);
6412
6413 priv->suspend_at = ktime_get_boottime_seconds();
6414
6415 mutex_unlock(&priv->action_mutex);
6416
6417 return 0;
6418}
6419
6420static int __maybe_unused ipw2100_resume(struct device *dev_d)
6421{
6422 struct pci_dev *pci_dev = to_pci_dev(dev_d);
6423 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6424 struct net_device *dev = priv->net_dev;
6425 u32 val;
6426
6427 if (IPW2100_PM_DISABLED)
6428 return 0;
6429
6430 mutex_lock(&priv->action_mutex);
6431
6432 IPW_DEBUG_INFO("%s: Coming out of suspend...\n", dev->name);
6433
6434 /*
6435 * Suspend/Resume resets the PCI configuration space, so we have to
6436 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
6437 * from interfering with C3 CPU state. pci_restore_state won't help
6438 * here since it only restores the first 64 bytes pci config header.
6439 */
6440 pci_read_config_dword(pci_dev, 0x40, &val);
6441 if ((val & 0x0000ff00) != 0)
6442 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6443
6444 /* Set the device back into the PRESENT state; this will also wake
6445 * the queue of needed */
6446 netif_device_attach(dev);
6447
6448 priv->suspend_time = ktime_get_boottime_seconds() - priv->suspend_at;
6449
6450 /* Bring the device back up */
6451 if (!(priv->status & STATUS_RF_KILL_SW))
6452 ipw2100_up(priv, 0);
6453
6454 mutex_unlock(&priv->action_mutex);
6455
6456 return 0;
6457}
6458
6459static void ipw2100_shutdown(struct pci_dev *pci_dev)
6460{
6461 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6462
6463 /* Take down the device; powers it off, etc. */
6464 ipw2100_down(priv);
6465
6466 pci_disable_device(pci_dev);
6467}
6468
6469#define IPW2100_DEV_ID(x) { PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, x }
6470
6471static const struct pci_device_id ipw2100_pci_id_table[] = {
6472 IPW2100_DEV_ID(0x2520), /* IN 2100A mPCI 3A */
6473 IPW2100_DEV_ID(0x2521), /* IN 2100A mPCI 3B */
6474 IPW2100_DEV_ID(0x2524), /* IN 2100A mPCI 3B */
6475 IPW2100_DEV_ID(0x2525), /* IN 2100A mPCI 3B */
6476 IPW2100_DEV_ID(0x2526), /* IN 2100A mPCI Gen A3 */
6477 IPW2100_DEV_ID(0x2522), /* IN 2100 mPCI 3B */
6478 IPW2100_DEV_ID(0x2523), /* IN 2100 mPCI 3A */
6479 IPW2100_DEV_ID(0x2527), /* IN 2100 mPCI 3B */
6480 IPW2100_DEV_ID(0x2528), /* IN 2100 mPCI 3B */
6481 IPW2100_DEV_ID(0x2529), /* IN 2100 mPCI 3B */
6482 IPW2100_DEV_ID(0x252B), /* IN 2100 mPCI 3A */
6483 IPW2100_DEV_ID(0x252C), /* IN 2100 mPCI 3A */
6484 IPW2100_DEV_ID(0x252D), /* IN 2100 mPCI 3A */
6485
6486 IPW2100_DEV_ID(0x2550), /* IB 2100A mPCI 3B */
6487 IPW2100_DEV_ID(0x2551), /* IB 2100 mPCI 3B */
6488 IPW2100_DEV_ID(0x2553), /* IB 2100 mPCI 3B */
6489 IPW2100_DEV_ID(0x2554), /* IB 2100 mPCI 3B */
6490 IPW2100_DEV_ID(0x2555), /* IB 2100 mPCI 3B */
6491
6492 IPW2100_DEV_ID(0x2560), /* DE 2100A mPCI 3A */
6493 IPW2100_DEV_ID(0x2562), /* DE 2100A mPCI 3A */
6494 IPW2100_DEV_ID(0x2563), /* DE 2100A mPCI 3A */
6495 IPW2100_DEV_ID(0x2561), /* DE 2100 mPCI 3A */
6496 IPW2100_DEV_ID(0x2565), /* DE 2100 mPCI 3A */
6497 IPW2100_DEV_ID(0x2566), /* DE 2100 mPCI 3A */
6498 IPW2100_DEV_ID(0x2567), /* DE 2100 mPCI 3A */
6499
6500 IPW2100_DEV_ID(0x2570), /* GA 2100 mPCI 3B */
6501
6502 IPW2100_DEV_ID(0x2580), /* TO 2100A mPCI 3B */
6503 IPW2100_DEV_ID(0x2582), /* TO 2100A mPCI 3B */
6504 IPW2100_DEV_ID(0x2583), /* TO 2100A mPCI 3B */
6505 IPW2100_DEV_ID(0x2581), /* TO 2100 mPCI 3B */
6506 IPW2100_DEV_ID(0x2585), /* TO 2100 mPCI 3B */
6507 IPW2100_DEV_ID(0x2586), /* TO 2100 mPCI 3B */
6508 IPW2100_DEV_ID(0x2587), /* TO 2100 mPCI 3B */
6509
6510 IPW2100_DEV_ID(0x2590), /* SO 2100A mPCI 3B */
6511 IPW2100_DEV_ID(0x2592), /* SO 2100A mPCI 3B */
6512 IPW2100_DEV_ID(0x2591), /* SO 2100 mPCI 3B */
6513 IPW2100_DEV_ID(0x2593), /* SO 2100 mPCI 3B */
6514 IPW2100_DEV_ID(0x2596), /* SO 2100 mPCI 3B */
6515 IPW2100_DEV_ID(0x2598), /* SO 2100 mPCI 3B */
6516
6517 IPW2100_DEV_ID(0x25A0), /* HP 2100 mPCI 3B */
6518 {0,},
6519};
6520
6521MODULE_DEVICE_TABLE(pci, ipw2100_pci_id_table);
6522
6523static SIMPLE_DEV_PM_OPS(ipw2100_pm_ops, ipw2100_suspend, ipw2100_resume);
6524
6525static struct pci_driver ipw2100_pci_driver = {
6526 .name = DRV_NAME,
6527 .id_table = ipw2100_pci_id_table,
6528 .probe = ipw2100_pci_init_one,
6529 .remove = ipw2100_pci_remove_one,
6530 .driver.pm = &ipw2100_pm_ops,
6531 .shutdown = ipw2100_shutdown,
6532};
6533
6534/**
6535 * Initialize the ipw2100 driver/module
6536 *
6537 * @returns 0 if ok, < 0 errno node con error.
6538 *
6539 * Note: we cannot init the /proc stuff until the PCI driver is there,
6540 * or we risk an unlikely race condition on someone accessing
6541 * uninitialized data in the PCI dev struct through /proc.
6542 */
6543static int __init ipw2100_init(void)
6544{
6545 int ret;
6546
6547 printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
6548 printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT);
6549
6550 cpu_latency_qos_add_request(&ipw2100_pm_qos_req, PM_QOS_DEFAULT_VALUE);
6551
6552 ret = pci_register_driver(&ipw2100_pci_driver);
6553 if (ret)
6554 goto out;
6555
6556#ifdef CONFIG_IPW2100_DEBUG
6557 ipw2100_debug_level = debug;
6558 ret = driver_create_file(&ipw2100_pci_driver.driver,
6559 &driver_attr_debug_level);
6560#endif
6561
6562out:
6563 return ret;
6564}
6565
6566/**
6567 * Cleanup ipw2100 driver registration
6568 */
6569static void __exit ipw2100_exit(void)
6570{
6571 /* FIXME: IPG: check that we have no instances of the devices open */
6572#ifdef CONFIG_IPW2100_DEBUG
6573 driver_remove_file(&ipw2100_pci_driver.driver,
6574 &driver_attr_debug_level);
6575#endif
6576 pci_unregister_driver(&ipw2100_pci_driver);
6577 cpu_latency_qos_remove_request(&ipw2100_pm_qos_req);
6578}
6579
6580module_init(ipw2100_init);
6581module_exit(ipw2100_exit);
6582
6583static int ipw2100_wx_get_name(struct net_device *dev,
6584 struct iw_request_info *info,
6585 union iwreq_data *wrqu, char *extra)
6586{
6587 /*
6588 * This can be called at any time. No action lock required
6589 */
6590
6591 struct ipw2100_priv *priv = libipw_priv(dev);
6592 if (!(priv->status & STATUS_ASSOCIATED))
6593 strcpy(wrqu->name, "unassociated");
6594 else
6595 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11b");
6596
6597 IPW_DEBUG_WX("Name: %s\n", wrqu->name);
6598 return 0;
6599}
6600
6601static int ipw2100_wx_set_freq(struct net_device *dev,
6602 struct iw_request_info *info,
6603 union iwreq_data *wrqu, char *extra)
6604{
6605 struct ipw2100_priv *priv = libipw_priv(dev);
6606 struct iw_freq *fwrq = &wrqu->freq;
6607 int err = 0;
6608
6609 if (priv->ieee->iw_mode == IW_MODE_INFRA)
6610 return -EOPNOTSUPP;
6611
6612 mutex_lock(&priv->action_mutex);
6613 if (!(priv->status & STATUS_INITIALIZED)) {
6614 err = -EIO;
6615 goto done;
6616 }
6617
6618 /* if setting by freq convert to channel */
6619 if (fwrq->e == 1) {
6620 if ((fwrq->m >= (int)2.412e8 && fwrq->m <= (int)2.487e8)) {
6621 int f = fwrq->m / 100000;
6622 int c = 0;
6623
6624 while ((c < REG_MAX_CHANNEL) &&
6625 (f != ipw2100_frequencies[c]))
6626 c++;
6627
6628 /* hack to fall through */
6629 fwrq->e = 0;
6630 fwrq->m = c + 1;
6631 }
6632 }
6633
6634 if (fwrq->e > 0 || fwrq->m > 1000) {
6635 err = -EOPNOTSUPP;
6636 goto done;
6637 } else { /* Set the channel */
6638 IPW_DEBUG_WX("SET Freq/Channel -> %d\n", fwrq->m);
6639 err = ipw2100_set_channel(priv, fwrq->m, 0);
6640 }
6641
6642 done:
6643 mutex_unlock(&priv->action_mutex);
6644 return err;
6645}
6646
6647static int ipw2100_wx_get_freq(struct net_device *dev,
6648 struct iw_request_info *info,
6649 union iwreq_data *wrqu, char *extra)
6650{
6651 /*
6652 * This can be called at any time. No action lock required
6653 */
6654
6655 struct ipw2100_priv *priv = libipw_priv(dev);
6656
6657 wrqu->freq.e = 0;
6658
6659 /* If we are associated, trying to associate, or have a statically
6660 * configured CHANNEL then return that; otherwise return ANY */
6661 if (priv->config & CFG_STATIC_CHANNEL ||
6662 priv->status & STATUS_ASSOCIATED)
6663 wrqu->freq.m = priv->channel;
6664 else
6665 wrqu->freq.m = 0;
6666
6667 IPW_DEBUG_WX("GET Freq/Channel -> %d\n", priv->channel);
6668 return 0;
6669
6670}
6671
6672static int ipw2100_wx_set_mode(struct net_device *dev,
6673 struct iw_request_info *info,
6674 union iwreq_data *wrqu, char *extra)
6675{
6676 struct ipw2100_priv *priv = libipw_priv(dev);
6677 int err = 0;
6678
6679 IPW_DEBUG_WX("SET Mode -> %d\n", wrqu->mode);
6680
6681 if (wrqu->mode == priv->ieee->iw_mode)
6682 return 0;
6683
6684 mutex_lock(&priv->action_mutex);
6685 if (!(priv->status & STATUS_INITIALIZED)) {
6686 err = -EIO;
6687 goto done;
6688 }
6689
6690 switch (wrqu->mode) {
6691#ifdef CONFIG_IPW2100_MONITOR
6692 case IW_MODE_MONITOR:
6693 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
6694 break;
6695#endif /* CONFIG_IPW2100_MONITOR */
6696 case IW_MODE_ADHOC:
6697 err = ipw2100_switch_mode(priv, IW_MODE_ADHOC);
6698 break;
6699 case IW_MODE_INFRA:
6700 case IW_MODE_AUTO:
6701 default:
6702 err = ipw2100_switch_mode(priv, IW_MODE_INFRA);
6703 break;
6704 }
6705
6706 done:
6707 mutex_unlock(&priv->action_mutex);
6708 return err;
6709}
6710
6711static int ipw2100_wx_get_mode(struct net_device *dev,
6712 struct iw_request_info *info,
6713 union iwreq_data *wrqu, char *extra)
6714{
6715 /*
6716 * This can be called at any time. No action lock required
6717 */
6718
6719 struct ipw2100_priv *priv = libipw_priv(dev);
6720
6721 wrqu->mode = priv->ieee->iw_mode;
6722 IPW_DEBUG_WX("GET Mode -> %d\n", wrqu->mode);
6723
6724 return 0;
6725}
6726
6727#define POWER_MODES 5
6728
6729/* Values are in microsecond */
6730static const s32 timeout_duration[POWER_MODES] = {
6731 350000,
6732 250000,
6733 75000,
6734 37000,
6735 25000,
6736};
6737
6738static const s32 period_duration[POWER_MODES] = {
6739 400000,
6740 700000,
6741 1000000,
6742 1000000,
6743 1000000
6744};
6745
6746static int ipw2100_wx_get_range(struct net_device *dev,
6747 struct iw_request_info *info,
6748 union iwreq_data *wrqu, char *extra)
6749{
6750 /*
6751 * This can be called at any time. No action lock required
6752 */
6753
6754 struct ipw2100_priv *priv = libipw_priv(dev);
6755 struct iw_range *range = (struct iw_range *)extra;
6756 u16 val;
6757 int i, level;
6758
6759 wrqu->data.length = sizeof(*range);
6760 memset(range, 0, sizeof(*range));
6761
6762 /* Let's try to keep this struct in the same order as in
6763 * linux/include/wireless.h
6764 */
6765
6766 /* TODO: See what values we can set, and remove the ones we can't
6767 * set, or fill them with some default data.
6768 */
6769
6770 /* ~5 Mb/s real (802.11b) */
6771 range->throughput = 5 * 1000 * 1000;
6772
6773// range->sensitivity; /* signal level threshold range */
6774
6775 range->max_qual.qual = 100;
6776 /* TODO: Find real max RSSI and stick here */
6777 range->max_qual.level = 0;
6778 range->max_qual.noise = 0;
6779 range->max_qual.updated = 7; /* Updated all three */
6780
6781 range->avg_qual.qual = 70; /* > 8% missed beacons is 'bad' */
6782 /* TODO: Find real 'good' to 'bad' threshold value for RSSI */
6783 range->avg_qual.level = 20 + IPW2100_RSSI_TO_DBM;
6784 range->avg_qual.noise = 0;
6785 range->avg_qual.updated = 7; /* Updated all three */
6786
6787 range->num_bitrates = RATE_COUNT;
6788
6789 for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++) {
6790 range->bitrate[i] = ipw2100_bg_rates[i].bitrate * 100 * 1000;
6791 }
6792
6793 range->min_rts = MIN_RTS_THRESHOLD;
6794 range->max_rts = MAX_RTS_THRESHOLD;
6795 range->min_frag = MIN_FRAG_THRESHOLD;
6796 range->max_frag = MAX_FRAG_THRESHOLD;
6797
6798 range->min_pmp = period_duration[0]; /* Minimal PM period */
6799 range->max_pmp = period_duration[POWER_MODES - 1]; /* Maximal PM period */
6800 range->min_pmt = timeout_duration[POWER_MODES - 1]; /* Minimal PM timeout */
6801 range->max_pmt = timeout_duration[0]; /* Maximal PM timeout */
6802
6803 /* How to decode max/min PM period */
6804 range->pmp_flags = IW_POWER_PERIOD;
6805 /* How to decode max/min PM period */
6806 range->pmt_flags = IW_POWER_TIMEOUT;
6807 /* What PM options are supported */
6808 range->pm_capa = IW_POWER_TIMEOUT | IW_POWER_PERIOD;
6809
6810 range->encoding_size[0] = 5;
6811 range->encoding_size[1] = 13; /* Different token sizes */
6812 range->num_encoding_sizes = 2; /* Number of entry in the list */
6813 range->max_encoding_tokens = WEP_KEYS; /* Max number of tokens */
6814// range->encoding_login_index; /* token index for login token */
6815
6816 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
6817 range->txpower_capa = IW_TXPOW_DBM;
6818 range->num_txpower = IW_MAX_TXPOWER;
6819 for (i = 0, level = (IPW_TX_POWER_MAX_DBM * 16);
6820 i < IW_MAX_TXPOWER;
6821 i++, level -=
6822 ((IPW_TX_POWER_MAX_DBM -
6823 IPW_TX_POWER_MIN_DBM) * 16) / (IW_MAX_TXPOWER - 1))
6824 range->txpower[i] = level / 16;
6825 } else {
6826 range->txpower_capa = 0;
6827 range->num_txpower = 0;
6828 }
6829
6830 /* Set the Wireless Extension versions */
6831 range->we_version_compiled = WIRELESS_EXT;
6832 range->we_version_source = 18;
6833
6834// range->retry_capa; /* What retry options are supported */
6835// range->retry_flags; /* How to decode max/min retry limit */
6836// range->r_time_flags; /* How to decode max/min retry life */
6837// range->min_retry; /* Minimal number of retries */
6838// range->max_retry; /* Maximal number of retries */
6839// range->min_r_time; /* Minimal retry lifetime */
6840// range->max_r_time; /* Maximal retry lifetime */
6841
6842 range->num_channels = FREQ_COUNT;
6843
6844 val = 0;
6845 for (i = 0; i < FREQ_COUNT; i++) {
6846 // TODO: Include only legal frequencies for some countries
6847// if (local->channel_mask & (1 << i)) {
6848 range->freq[val].i = i + 1;
6849 range->freq[val].m = ipw2100_frequencies[i] * 100000;
6850 range->freq[val].e = 1;
6851 val++;
6852// }
6853 if (val == IW_MAX_FREQUENCIES)
6854 break;
6855 }
6856 range->num_frequency = val;
6857
6858 /* Event capability (kernel + driver) */
6859 range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
6860 IW_EVENT_CAPA_MASK(SIOCGIWAP));
6861 range->event_capa[1] = IW_EVENT_CAPA_K_1;
6862
6863 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
6864 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
6865
6866 IPW_DEBUG_WX("GET Range\n");
6867
6868 return 0;
6869}
6870
6871static int ipw2100_wx_set_wap(struct net_device *dev,
6872 struct iw_request_info *info,
6873 union iwreq_data *wrqu, char *extra)
6874{
6875 struct ipw2100_priv *priv = libipw_priv(dev);
6876 int err = 0;
6877
6878 // sanity checks
6879 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
6880 return -EINVAL;
6881
6882 mutex_lock(&priv->action_mutex);
6883 if (!(priv->status & STATUS_INITIALIZED)) {
6884 err = -EIO;
6885 goto done;
6886 }
6887
6888 if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data) ||
6889 is_zero_ether_addr(wrqu->ap_addr.sa_data)) {
6890 /* we disable mandatory BSSID association */
6891 IPW_DEBUG_WX("exit - disable mandatory BSSID\n");
6892 priv->config &= ~CFG_STATIC_BSSID;
6893 err = ipw2100_set_mandatory_bssid(priv, NULL, 0);
6894 goto done;
6895 }
6896
6897 priv->config |= CFG_STATIC_BSSID;
6898 memcpy(priv->mandatory_bssid_mac, wrqu->ap_addr.sa_data, ETH_ALEN);
6899
6900 err = ipw2100_set_mandatory_bssid(priv, wrqu->ap_addr.sa_data, 0);
6901
6902 IPW_DEBUG_WX("SET BSSID -> %pM\n", wrqu->ap_addr.sa_data);
6903
6904 done:
6905 mutex_unlock(&priv->action_mutex);
6906 return err;
6907}
6908
6909static int ipw2100_wx_get_wap(struct net_device *dev,
6910 struct iw_request_info *info,
6911 union iwreq_data *wrqu, char *extra)
6912{
6913 /*
6914 * This can be called at any time. No action lock required
6915 */
6916
6917 struct ipw2100_priv *priv = libipw_priv(dev);
6918
6919 /* If we are associated, trying to associate, or have a statically
6920 * configured BSSID then return that; otherwise return ANY */
6921 if (priv->config & CFG_STATIC_BSSID || priv->status & STATUS_ASSOCIATED) {
6922 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
6923 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
6924 } else
6925 eth_zero_addr(wrqu->ap_addr.sa_data);
6926
6927 IPW_DEBUG_WX("Getting WAP BSSID: %pM\n", wrqu->ap_addr.sa_data);
6928 return 0;
6929}
6930
6931static int ipw2100_wx_set_essid(struct net_device *dev,
6932 struct iw_request_info *info,
6933 union iwreq_data *wrqu, char *extra)
6934{
6935 struct ipw2100_priv *priv = libipw_priv(dev);
6936 char *essid = ""; /* ANY */
6937 int length = 0;
6938 int err = 0;
6939
6940 mutex_lock(&priv->action_mutex);
6941 if (!(priv->status & STATUS_INITIALIZED)) {
6942 err = -EIO;
6943 goto done;
6944 }
6945
6946 if (wrqu->essid.flags && wrqu->essid.length) {
6947 length = wrqu->essid.length;
6948 essid = extra;
6949 }
6950
6951 if (length == 0) {
6952 IPW_DEBUG_WX("Setting ESSID to ANY\n");
6953 priv->config &= ~CFG_STATIC_ESSID;
6954 err = ipw2100_set_essid(priv, NULL, 0, 0);
6955 goto done;
6956 }
6957
6958 length = min(length, IW_ESSID_MAX_SIZE);
6959
6960 priv->config |= CFG_STATIC_ESSID;
6961
6962 if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) {
6963 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
6964 err = 0;
6965 goto done;
6966 }
6967
6968 IPW_DEBUG_WX("Setting ESSID: '%*pE' (%d)\n", length, essid, length);
6969
6970 priv->essid_len = length;
6971 memcpy(priv->essid, essid, priv->essid_len);
6972
6973 err = ipw2100_set_essid(priv, essid, length, 0);
6974
6975 done:
6976 mutex_unlock(&priv->action_mutex);
6977 return err;
6978}
6979
6980static int ipw2100_wx_get_essid(struct net_device *dev,
6981 struct iw_request_info *info,
6982 union iwreq_data *wrqu, char *extra)
6983{
6984 /*
6985 * This can be called at any time. No action lock required
6986 */
6987
6988 struct ipw2100_priv *priv = libipw_priv(dev);
6989
6990 /* If we are associated, trying to associate, or have a statically
6991 * configured ESSID then return that; otherwise return ANY */
6992 if (priv->config & CFG_STATIC_ESSID || priv->status & STATUS_ASSOCIATED) {
6993 IPW_DEBUG_WX("Getting essid: '%*pE'\n",
6994 priv->essid_len, priv->essid);
6995 memcpy(extra, priv->essid, priv->essid_len);
6996 wrqu->essid.length = priv->essid_len;
6997 wrqu->essid.flags = 1; /* active */
6998 } else {
6999 IPW_DEBUG_WX("Getting essid: ANY\n");
7000 wrqu->essid.length = 0;
7001 wrqu->essid.flags = 0; /* active */
7002 }
7003
7004 return 0;
7005}
7006
7007static int ipw2100_wx_set_nick(struct net_device *dev,
7008 struct iw_request_info *info,
7009 union iwreq_data *wrqu, char *extra)
7010{
7011 /*
7012 * This can be called at any time. No action lock required
7013 */
7014
7015 struct ipw2100_priv *priv = libipw_priv(dev);
7016
7017 if (wrqu->data.length > IW_ESSID_MAX_SIZE)
7018 return -E2BIG;
7019
7020 wrqu->data.length = min_t(size_t, wrqu->data.length, sizeof(priv->nick));
7021 memset(priv->nick, 0, sizeof(priv->nick));
7022 memcpy(priv->nick, extra, wrqu->data.length);
7023
7024 IPW_DEBUG_WX("SET Nickname -> %s\n", priv->nick);
7025
7026 return 0;
7027}
7028
7029static int ipw2100_wx_get_nick(struct net_device *dev,
7030 struct iw_request_info *info,
7031 union iwreq_data *wrqu, char *extra)
7032{
7033 /*
7034 * This can be called at any time. No action lock required
7035 */
7036
7037 struct ipw2100_priv *priv = libipw_priv(dev);
7038
7039 wrqu->data.length = strlen(priv->nick);
7040 memcpy(extra, priv->nick, wrqu->data.length);
7041 wrqu->data.flags = 1; /* active */
7042
7043 IPW_DEBUG_WX("GET Nickname -> %s\n", extra);
7044
7045 return 0;
7046}
7047
7048static int ipw2100_wx_set_rate(struct net_device *dev,
7049 struct iw_request_info *info,
7050 union iwreq_data *wrqu, char *extra)
7051{
7052 struct ipw2100_priv *priv = libipw_priv(dev);
7053 u32 target_rate = wrqu->bitrate.value;
7054 u32 rate;
7055 int err = 0;
7056
7057 mutex_lock(&priv->action_mutex);
7058 if (!(priv->status & STATUS_INITIALIZED)) {
7059 err = -EIO;
7060 goto done;
7061 }
7062
7063 rate = 0;
7064
7065 if (target_rate == 1000000 ||
7066 (!wrqu->bitrate.fixed && target_rate > 1000000))
7067 rate |= TX_RATE_1_MBIT;
7068 if (target_rate == 2000000 ||
7069 (!wrqu->bitrate.fixed && target_rate > 2000000))
7070 rate |= TX_RATE_2_MBIT;
7071 if (target_rate == 5500000 ||
7072 (!wrqu->bitrate.fixed && target_rate > 5500000))
7073 rate |= TX_RATE_5_5_MBIT;
7074 if (target_rate == 11000000 ||
7075 (!wrqu->bitrate.fixed && target_rate > 11000000))
7076 rate |= TX_RATE_11_MBIT;
7077 if (rate == 0)
7078 rate = DEFAULT_TX_RATES;
7079
7080 err = ipw2100_set_tx_rates(priv, rate, 0);
7081
7082 IPW_DEBUG_WX("SET Rate -> %04X\n", rate);
7083 done:
7084 mutex_unlock(&priv->action_mutex);
7085 return err;
7086}
7087
7088static int ipw2100_wx_get_rate(struct net_device *dev,
7089 struct iw_request_info *info,
7090 union iwreq_data *wrqu, char *extra)
7091{
7092 struct ipw2100_priv *priv = libipw_priv(dev);
7093 int val;
7094 unsigned int len = sizeof(val);
7095 int err = 0;
7096
7097 if (!(priv->status & STATUS_ENABLED) ||
7098 priv->status & STATUS_RF_KILL_MASK ||
7099 !(priv->status & STATUS_ASSOCIATED)) {
7100 wrqu->bitrate.value = 0;
7101 return 0;
7102 }
7103
7104 mutex_lock(&priv->action_mutex);
7105 if (!(priv->status & STATUS_INITIALIZED)) {
7106 err = -EIO;
7107 goto done;
7108 }
7109
7110 err = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &val, &len);
7111 if (err) {
7112 IPW_DEBUG_WX("failed querying ordinals.\n");
7113 goto done;
7114 }
7115
7116 switch (val & TX_RATE_MASK) {
7117 case TX_RATE_1_MBIT:
7118 wrqu->bitrate.value = 1000000;
7119 break;
7120 case TX_RATE_2_MBIT:
7121 wrqu->bitrate.value = 2000000;
7122 break;
7123 case TX_RATE_5_5_MBIT:
7124 wrqu->bitrate.value = 5500000;
7125 break;
7126 case TX_RATE_11_MBIT:
7127 wrqu->bitrate.value = 11000000;
7128 break;
7129 default:
7130 wrqu->bitrate.value = 0;
7131 }
7132
7133 IPW_DEBUG_WX("GET Rate -> %d\n", wrqu->bitrate.value);
7134
7135 done:
7136 mutex_unlock(&priv->action_mutex);
7137 return err;
7138}
7139
7140static int ipw2100_wx_set_rts(struct net_device *dev,
7141 struct iw_request_info *info,
7142 union iwreq_data *wrqu, char *extra)
7143{
7144 struct ipw2100_priv *priv = libipw_priv(dev);
7145 int value, err;
7146
7147 /* Auto RTS not yet supported */
7148 if (wrqu->rts.fixed == 0)
7149 return -EINVAL;
7150
7151 mutex_lock(&priv->action_mutex);
7152 if (!(priv->status & STATUS_INITIALIZED)) {
7153 err = -EIO;
7154 goto done;
7155 }
7156
7157 if (wrqu->rts.disabled)
7158 value = priv->rts_threshold | RTS_DISABLED;
7159 else {
7160 if (wrqu->rts.value < 1 || wrqu->rts.value > 2304) {
7161 err = -EINVAL;
7162 goto done;
7163 }
7164 value = wrqu->rts.value;
7165 }
7166
7167 err = ipw2100_set_rts_threshold(priv, value);
7168
7169 IPW_DEBUG_WX("SET RTS Threshold -> 0x%08X\n", value);
7170 done:
7171 mutex_unlock(&priv->action_mutex);
7172 return err;
7173}
7174
7175static int ipw2100_wx_get_rts(struct net_device *dev,
7176 struct iw_request_info *info,
7177 union iwreq_data *wrqu, char *extra)
7178{
7179 /*
7180 * This can be called at any time. No action lock required
7181 */
7182
7183 struct ipw2100_priv *priv = libipw_priv(dev);
7184
7185 wrqu->rts.value = priv->rts_threshold & ~RTS_DISABLED;
7186 wrqu->rts.fixed = 1; /* no auto select */
7187
7188 /* If RTS is set to the default value, then it is disabled */
7189 wrqu->rts.disabled = (priv->rts_threshold & RTS_DISABLED) ? 1 : 0;
7190
7191 IPW_DEBUG_WX("GET RTS Threshold -> 0x%08X\n", wrqu->rts.value);
7192
7193 return 0;
7194}
7195
7196static int ipw2100_wx_set_txpow(struct net_device *dev,
7197 struct iw_request_info *info,
7198 union iwreq_data *wrqu, char *extra)
7199{
7200 struct ipw2100_priv *priv = libipw_priv(dev);
7201 int err = 0, value;
7202
7203 if (ipw_radio_kill_sw(priv, wrqu->txpower.disabled))
7204 return -EINPROGRESS;
7205
7206 if (priv->ieee->iw_mode != IW_MODE_ADHOC)
7207 return 0;
7208
7209 if ((wrqu->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
7210 return -EINVAL;
7211
7212 if (wrqu->txpower.fixed == 0)
7213 value = IPW_TX_POWER_DEFAULT;
7214 else {
7215 if (wrqu->txpower.value < IPW_TX_POWER_MIN_DBM ||
7216 wrqu->txpower.value > IPW_TX_POWER_MAX_DBM)
7217 return -EINVAL;
7218
7219 value = wrqu->txpower.value;
7220 }
7221
7222 mutex_lock(&priv->action_mutex);
7223 if (!(priv->status & STATUS_INITIALIZED)) {
7224 err = -EIO;
7225 goto done;
7226 }
7227
7228 err = ipw2100_set_tx_power(priv, value);
7229
7230 IPW_DEBUG_WX("SET TX Power -> %d\n", value);
7231
7232 done:
7233 mutex_unlock(&priv->action_mutex);
7234 return err;
7235}
7236
7237static int ipw2100_wx_get_txpow(struct net_device *dev,
7238 struct iw_request_info *info,
7239 union iwreq_data *wrqu, char *extra)
7240{
7241 /*
7242 * This can be called at any time. No action lock required
7243 */
7244
7245 struct ipw2100_priv *priv = libipw_priv(dev);
7246
7247 wrqu->txpower.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0;
7248
7249 if (priv->tx_power == IPW_TX_POWER_DEFAULT) {
7250 wrqu->txpower.fixed = 0;
7251 wrqu->txpower.value = IPW_TX_POWER_MAX_DBM;
7252 } else {
7253 wrqu->txpower.fixed = 1;
7254 wrqu->txpower.value = priv->tx_power;
7255 }
7256
7257 wrqu->txpower.flags = IW_TXPOW_DBM;
7258
7259 IPW_DEBUG_WX("GET TX Power -> %d\n", wrqu->txpower.value);
7260
7261 return 0;
7262}
7263
7264static int ipw2100_wx_set_frag(struct net_device *dev,
7265 struct iw_request_info *info,
7266 union iwreq_data *wrqu, char *extra)
7267{
7268 /*
7269 * This can be called at any time. No action lock required
7270 */
7271
7272 struct ipw2100_priv *priv = libipw_priv(dev);
7273
7274 if (!wrqu->frag.fixed)
7275 return -EINVAL;
7276
7277 if (wrqu->frag.disabled) {
7278 priv->frag_threshold |= FRAG_DISABLED;
7279 priv->ieee->fts = DEFAULT_FTS;
7280 } else {
7281 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
7282 wrqu->frag.value > MAX_FRAG_THRESHOLD)
7283 return -EINVAL;
7284
7285 priv->ieee->fts = wrqu->frag.value & ~0x1;
7286 priv->frag_threshold = priv->ieee->fts;
7287 }
7288
7289 IPW_DEBUG_WX("SET Frag Threshold -> %d\n", priv->ieee->fts);
7290
7291 return 0;
7292}
7293
7294static int ipw2100_wx_get_frag(struct net_device *dev,
7295 struct iw_request_info *info,
7296 union iwreq_data *wrqu, char *extra)
7297{
7298 /*
7299 * This can be called at any time. No action lock required
7300 */
7301
7302 struct ipw2100_priv *priv = libipw_priv(dev);
7303 wrqu->frag.value = priv->frag_threshold & ~FRAG_DISABLED;
7304 wrqu->frag.fixed = 0; /* no auto select */
7305 wrqu->frag.disabled = (priv->frag_threshold & FRAG_DISABLED) ? 1 : 0;
7306
7307 IPW_DEBUG_WX("GET Frag Threshold -> %d\n", wrqu->frag.value);
7308
7309 return 0;
7310}
7311
7312static int ipw2100_wx_set_retry(struct net_device *dev,
7313 struct iw_request_info *info,
7314 union iwreq_data *wrqu, char *extra)
7315{
7316 struct ipw2100_priv *priv = libipw_priv(dev);
7317 int err = 0;
7318
7319 if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
7320 return -EINVAL;
7321
7322 if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
7323 return 0;
7324
7325 mutex_lock(&priv->action_mutex);
7326 if (!(priv->status & STATUS_INITIALIZED)) {
7327 err = -EIO;
7328 goto done;
7329 }
7330
7331 if (wrqu->retry.flags & IW_RETRY_SHORT) {
7332 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7333 IPW_DEBUG_WX("SET Short Retry Limit -> %d\n",
7334 wrqu->retry.value);
7335 goto done;
7336 }
7337
7338 if (wrqu->retry.flags & IW_RETRY_LONG) {
7339 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7340 IPW_DEBUG_WX("SET Long Retry Limit -> %d\n",
7341 wrqu->retry.value);
7342 goto done;
7343 }
7344
7345 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7346 if (!err)
7347 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7348
7349 IPW_DEBUG_WX("SET Both Retry Limits -> %d\n", wrqu->retry.value);
7350
7351 done:
7352 mutex_unlock(&priv->action_mutex);
7353 return err;
7354}
7355
7356static int ipw2100_wx_get_retry(struct net_device *dev,
7357 struct iw_request_info *info,
7358 union iwreq_data *wrqu, char *extra)
7359{
7360 /*
7361 * This can be called at any time. No action lock required
7362 */
7363
7364 struct ipw2100_priv *priv = libipw_priv(dev);
7365
7366 wrqu->retry.disabled = 0; /* can't be disabled */
7367
7368 if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME)
7369 return -EINVAL;
7370
7371 if (wrqu->retry.flags & IW_RETRY_LONG) {
7372 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
7373 wrqu->retry.value = priv->long_retry_limit;
7374 } else {
7375 wrqu->retry.flags =
7376 (priv->short_retry_limit !=
7377 priv->long_retry_limit) ?
7378 IW_RETRY_LIMIT | IW_RETRY_SHORT : IW_RETRY_LIMIT;
7379
7380 wrqu->retry.value = priv->short_retry_limit;
7381 }
7382
7383 IPW_DEBUG_WX("GET Retry -> %d\n", wrqu->retry.value);
7384
7385 return 0;
7386}
7387
7388static int ipw2100_wx_set_scan(struct net_device *dev,
7389 struct iw_request_info *info,
7390 union iwreq_data *wrqu, char *extra)
7391{
7392 struct ipw2100_priv *priv = libipw_priv(dev);
7393 int err = 0;
7394
7395 mutex_lock(&priv->action_mutex);
7396 if (!(priv->status & STATUS_INITIALIZED)) {
7397 err = -EIO;
7398 goto done;
7399 }
7400
7401 IPW_DEBUG_WX("Initiating scan...\n");
7402
7403 priv->user_requested_scan = 1;
7404 if (ipw2100_set_scan_options(priv) || ipw2100_start_scan(priv)) {
7405 IPW_DEBUG_WX("Start scan failed.\n");
7406
7407 /* TODO: Mark a scan as pending so when hardware initialized
7408 * a scan starts */
7409 }
7410
7411 done:
7412 mutex_unlock(&priv->action_mutex);
7413 return err;
7414}
7415
7416static int ipw2100_wx_get_scan(struct net_device *dev,
7417 struct iw_request_info *info,
7418 union iwreq_data *wrqu, char *extra)
7419{
7420 /*
7421 * This can be called at any time. No action lock required
7422 */
7423
7424 struct ipw2100_priv *priv = libipw_priv(dev);
7425 return libipw_wx_get_scan(priv->ieee, info, wrqu, extra);
7426}
7427
7428/*
7429 * Implementation based on code in hostap-driver v0.1.3 hostap_ioctl.c
7430 */
7431static int ipw2100_wx_set_encode(struct net_device *dev,
7432 struct iw_request_info *info,
7433 union iwreq_data *wrqu, char *key)
7434{
7435 /*
7436 * No check of STATUS_INITIALIZED required
7437 */
7438
7439 struct ipw2100_priv *priv = libipw_priv(dev);
7440 return libipw_wx_set_encode(priv->ieee, info, wrqu, key);
7441}
7442
7443static int ipw2100_wx_get_encode(struct net_device *dev,
7444 struct iw_request_info *info,
7445 union iwreq_data *wrqu, char *key)
7446{
7447 /*
7448 * This can be called at any time. No action lock required
7449 */
7450
7451 struct ipw2100_priv *priv = libipw_priv(dev);
7452 return libipw_wx_get_encode(priv->ieee, info, wrqu, key);
7453}
7454
7455static int ipw2100_wx_set_power(struct net_device *dev,
7456 struct iw_request_info *info,
7457 union iwreq_data *wrqu, char *extra)
7458{
7459 struct ipw2100_priv *priv = libipw_priv(dev);
7460 int err = 0;
7461
7462 mutex_lock(&priv->action_mutex);
7463 if (!(priv->status & STATUS_INITIALIZED)) {
7464 err = -EIO;
7465 goto done;
7466 }
7467
7468 if (wrqu->power.disabled) {
7469 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
7470 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
7471 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
7472 goto done;
7473 }
7474
7475 switch (wrqu->power.flags & IW_POWER_MODE) {
7476 case IW_POWER_ON: /* If not specified */
7477 case IW_POWER_MODE: /* If set all mask */
7478 case IW_POWER_ALL_R: /* If explicitly state all */
7479 break;
7480 default: /* Otherwise we don't support it */
7481 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
7482 wrqu->power.flags);
7483 err = -EOPNOTSUPP;
7484 goto done;
7485 }
7486
7487 /* If the user hasn't specified a power management mode yet, default
7488 * to BATTERY */
7489 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
7490 err = ipw2100_set_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
7491
7492 IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
7493
7494 done:
7495 mutex_unlock(&priv->action_mutex);
7496 return err;
7497
7498}
7499
7500static int ipw2100_wx_get_power(struct net_device *dev,
7501 struct iw_request_info *info,
7502 union iwreq_data *wrqu, char *extra)
7503{
7504 /*
7505 * This can be called at any time. No action lock required
7506 */
7507
7508 struct ipw2100_priv *priv = libipw_priv(dev);
7509
7510 if (!(priv->power_mode & IPW_POWER_ENABLED))
7511 wrqu->power.disabled = 1;
7512 else {
7513 wrqu->power.disabled = 0;
7514 wrqu->power.flags = 0;
7515 }
7516
7517 IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
7518
7519 return 0;
7520}
7521
7522/*
7523 * WE-18 WPA support
7524 */
7525
7526/* SIOCSIWGENIE */
7527static int ipw2100_wx_set_genie(struct net_device *dev,
7528 struct iw_request_info *info,
7529 union iwreq_data *wrqu, char *extra)
7530{
7531
7532 struct ipw2100_priv *priv = libipw_priv(dev);
7533 struct libipw_device *ieee = priv->ieee;
7534 u8 *buf;
7535
7536 if (!ieee->wpa_enabled)
7537 return -EOPNOTSUPP;
7538
7539 if (wrqu->data.length > MAX_WPA_IE_LEN ||
7540 (wrqu->data.length && extra == NULL))
7541 return -EINVAL;
7542
7543 if (wrqu->data.length) {
7544 buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL);
7545 if (buf == NULL)
7546 return -ENOMEM;
7547
7548 kfree(ieee->wpa_ie);
7549 ieee->wpa_ie = buf;
7550 ieee->wpa_ie_len = wrqu->data.length;
7551 } else {
7552 kfree(ieee->wpa_ie);
7553 ieee->wpa_ie = NULL;
7554 ieee->wpa_ie_len = 0;
7555 }
7556
7557 ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
7558
7559 return 0;
7560}
7561
7562/* SIOCGIWGENIE */
7563static int ipw2100_wx_get_genie(struct net_device *dev,
7564 struct iw_request_info *info,
7565 union iwreq_data *wrqu, char *extra)
7566{
7567 struct ipw2100_priv *priv = libipw_priv(dev);
7568 struct libipw_device *ieee = priv->ieee;
7569
7570 if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
7571 wrqu->data.length = 0;
7572 return 0;
7573 }
7574
7575 if (wrqu->data.length < ieee->wpa_ie_len)
7576 return -E2BIG;
7577
7578 wrqu->data.length = ieee->wpa_ie_len;
7579 memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
7580
7581 return 0;
7582}
7583
7584/* SIOCSIWAUTH */
7585static int ipw2100_wx_set_auth(struct net_device *dev,
7586 struct iw_request_info *info,
7587 union iwreq_data *wrqu, char *extra)
7588{
7589 struct ipw2100_priv *priv = libipw_priv(dev);
7590 struct libipw_device *ieee = priv->ieee;
7591 struct iw_param *param = &wrqu->param;
7592 struct lib80211_crypt_data *crypt;
7593 unsigned long flags;
7594 int ret = 0;
7595
7596 switch (param->flags & IW_AUTH_INDEX) {
7597 case IW_AUTH_WPA_VERSION:
7598 case IW_AUTH_CIPHER_PAIRWISE:
7599 case IW_AUTH_CIPHER_GROUP:
7600 case IW_AUTH_KEY_MGMT:
7601 /*
7602 * ipw2200 does not use these parameters
7603 */
7604 break;
7605
7606 case IW_AUTH_TKIP_COUNTERMEASURES:
7607 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
7608 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags)
7609 break;
7610
7611 flags = crypt->ops->get_flags(crypt->priv);
7612
7613 if (param->value)
7614 flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7615 else
7616 flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7617
7618 crypt->ops->set_flags(flags, crypt->priv);
7619
7620 break;
7621
7622 case IW_AUTH_DROP_UNENCRYPTED:{
7623 /* HACK:
7624 *
7625 * wpa_supplicant calls set_wpa_enabled when the driver
7626 * is loaded and unloaded, regardless of if WPA is being
7627 * used. No other calls are made which can be used to
7628 * determine if encryption will be used or not prior to
7629 * association being expected. If encryption is not being
7630 * used, drop_unencrypted is set to false, else true -- we
7631 * can use this to determine if the CAP_PRIVACY_ON bit should
7632 * be set.
7633 */
7634 struct libipw_security sec = {
7635 .flags = SEC_ENABLED,
7636 .enabled = param->value,
7637 };
7638 priv->ieee->drop_unencrypted = param->value;
7639 /* We only change SEC_LEVEL for open mode. Others
7640 * are set by ipw_wpa_set_encryption.
7641 */
7642 if (!param->value) {
7643 sec.flags |= SEC_LEVEL;
7644 sec.level = SEC_LEVEL_0;
7645 } else {
7646 sec.flags |= SEC_LEVEL;
7647 sec.level = SEC_LEVEL_1;
7648 }
7649 if (priv->ieee->set_security)
7650 priv->ieee->set_security(priv->ieee->dev, &sec);
7651 break;
7652 }
7653
7654 case IW_AUTH_80211_AUTH_ALG:
7655 ret = ipw2100_wpa_set_auth_algs(priv, param->value);
7656 break;
7657
7658 case IW_AUTH_WPA_ENABLED:
7659 ret = ipw2100_wpa_enable(priv, param->value);
7660 break;
7661
7662 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7663 ieee->ieee802_1x = param->value;
7664 break;
7665
7666 //case IW_AUTH_ROAMING_CONTROL:
7667 case IW_AUTH_PRIVACY_INVOKED:
7668 ieee->privacy_invoked = param->value;
7669 break;
7670
7671 default:
7672 return -EOPNOTSUPP;
7673 }
7674 return ret;
7675}
7676
7677/* SIOCGIWAUTH */
7678static int ipw2100_wx_get_auth(struct net_device *dev,
7679 struct iw_request_info *info,
7680 union iwreq_data *wrqu, char *extra)
7681{
7682 struct ipw2100_priv *priv = libipw_priv(dev);
7683 struct libipw_device *ieee = priv->ieee;
7684 struct lib80211_crypt_data *crypt;
7685 struct iw_param *param = &wrqu->param;
7686
7687 switch (param->flags & IW_AUTH_INDEX) {
7688 case IW_AUTH_WPA_VERSION:
7689 case IW_AUTH_CIPHER_PAIRWISE:
7690 case IW_AUTH_CIPHER_GROUP:
7691 case IW_AUTH_KEY_MGMT:
7692 /*
7693 * wpa_supplicant will control these internally
7694 */
7695 break;
7696
7697 case IW_AUTH_TKIP_COUNTERMEASURES:
7698 crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
7699 if (!crypt || !crypt->ops->get_flags) {
7700 IPW_DEBUG_WARNING("Can't get TKIP countermeasures: "
7701 "crypt not set!\n");
7702 break;
7703 }
7704
7705 param->value = (crypt->ops->get_flags(crypt->priv) &
7706 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
7707
7708 break;
7709
7710 case IW_AUTH_DROP_UNENCRYPTED:
7711 param->value = ieee->drop_unencrypted;
7712 break;
7713
7714 case IW_AUTH_80211_AUTH_ALG:
7715 param->value = priv->ieee->sec.auth_mode;
7716 break;
7717
7718 case IW_AUTH_WPA_ENABLED:
7719 param->value = ieee->wpa_enabled;
7720 break;
7721
7722 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7723 param->value = ieee->ieee802_1x;
7724 break;
7725
7726 case IW_AUTH_ROAMING_CONTROL:
7727 case IW_AUTH_PRIVACY_INVOKED:
7728 param->value = ieee->privacy_invoked;
7729 break;
7730
7731 default:
7732 return -EOPNOTSUPP;
7733 }
7734 return 0;
7735}
7736
7737/* SIOCSIWENCODEEXT */
7738static int ipw2100_wx_set_encodeext(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 return libipw_wx_set_encodeext(priv->ieee, info, wrqu, extra);
7744}
7745
7746/* SIOCGIWENCODEEXT */
7747static int ipw2100_wx_get_encodeext(struct net_device *dev,
7748 struct iw_request_info *info,
7749 union iwreq_data *wrqu, char *extra)
7750{
7751 struct ipw2100_priv *priv = libipw_priv(dev);
7752 return libipw_wx_get_encodeext(priv->ieee, info, wrqu, extra);
7753}
7754
7755/* SIOCSIWMLME */
7756static int ipw2100_wx_set_mlme(struct net_device *dev,
7757 struct iw_request_info *info,
7758 union iwreq_data *wrqu, char *extra)
7759{
7760 struct ipw2100_priv *priv = libipw_priv(dev);
7761 struct iw_mlme *mlme = (struct iw_mlme *)extra;
7762
7763 switch (mlme->cmd) {
7764 case IW_MLME_DEAUTH:
7765 // silently ignore
7766 break;
7767
7768 case IW_MLME_DISASSOC:
7769 ipw2100_disassociate_bssid(priv);
7770 break;
7771
7772 default:
7773 return -EOPNOTSUPP;
7774 }
7775 return 0;
7776}
7777
7778/*
7779 *
7780 * IWPRIV handlers
7781 *
7782 */
7783#ifdef CONFIG_IPW2100_MONITOR
7784static int ipw2100_wx_set_promisc(struct net_device *dev,
7785 struct iw_request_info *info,
7786 union iwreq_data *wrqu, char *extra)
7787{
7788 struct ipw2100_priv *priv = libipw_priv(dev);
7789 int *parms = (int *)extra;
7790 int enable = (parms[0] > 0);
7791 int err = 0;
7792
7793 mutex_lock(&priv->action_mutex);
7794 if (!(priv->status & STATUS_INITIALIZED)) {
7795 err = -EIO;
7796 goto done;
7797 }
7798
7799 if (enable) {
7800 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
7801 err = ipw2100_set_channel(priv, parms[1], 0);
7802 goto done;
7803 }
7804 priv->channel = parms[1];
7805 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
7806 } else {
7807 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
7808 err = ipw2100_switch_mode(priv, priv->last_mode);
7809 }
7810 done:
7811 mutex_unlock(&priv->action_mutex);
7812 return err;
7813}
7814
7815static int ipw2100_wx_reset(struct net_device *dev,
7816 struct iw_request_info *info,
7817 union iwreq_data *wrqu, char *extra)
7818{
7819 struct ipw2100_priv *priv = libipw_priv(dev);
7820 if (priv->status & STATUS_INITIALIZED)
7821 schedule_reset(priv);
7822 return 0;
7823}
7824
7825#endif
7826
7827static int ipw2100_wx_set_powermode(struct net_device *dev,
7828 struct iw_request_info *info,
7829 union iwreq_data *wrqu, char *extra)
7830{
7831 struct ipw2100_priv *priv = libipw_priv(dev);
7832 int err = 0, mode = *(int *)extra;
7833
7834 mutex_lock(&priv->action_mutex);
7835 if (!(priv->status & STATUS_INITIALIZED)) {
7836 err = -EIO;
7837 goto done;
7838 }
7839
7840 if ((mode < 0) || (mode > POWER_MODES))
7841 mode = IPW_POWER_AUTO;
7842
7843 if (IPW_POWER_LEVEL(priv->power_mode) != mode)
7844 err = ipw2100_set_power_mode(priv, mode);
7845 done:
7846 mutex_unlock(&priv->action_mutex);
7847 return err;
7848}
7849
7850#define MAX_POWER_STRING 80
7851static int ipw2100_wx_get_powermode(struct net_device *dev,
7852 struct iw_request_info *info,
7853 union iwreq_data *wrqu, char *extra)
7854{
7855 /*
7856 * This can be called at any time. No action lock required
7857 */
7858
7859 struct ipw2100_priv *priv = libipw_priv(dev);
7860 int level = IPW_POWER_LEVEL(priv->power_mode);
7861 s32 timeout, period;
7862
7863 if (!(priv->power_mode & IPW_POWER_ENABLED)) {
7864 snprintf(extra, MAX_POWER_STRING,
7865 "Power save level: %d (Off)", level);
7866 } else {
7867 switch (level) {
7868 case IPW_POWER_MODE_CAM:
7869 snprintf(extra, MAX_POWER_STRING,
7870 "Power save level: %d (None)", level);
7871 break;
7872 case IPW_POWER_AUTO:
7873 snprintf(extra, MAX_POWER_STRING,
7874 "Power save level: %d (Auto)", level);
7875 break;
7876 default:
7877 timeout = timeout_duration[level - 1] / 1000;
7878 period = period_duration[level - 1] / 1000;
7879 snprintf(extra, MAX_POWER_STRING,
7880 "Power save level: %d "
7881 "(Timeout %dms, Period %dms)",
7882 level, timeout, period);
7883 }
7884 }
7885
7886 wrqu->data.length = strlen(extra) + 1;
7887
7888 return 0;
7889}
7890
7891static int ipw2100_wx_set_preamble(struct net_device *dev,
7892 struct iw_request_info *info,
7893 union iwreq_data *wrqu, char *extra)
7894{
7895 struct ipw2100_priv *priv = libipw_priv(dev);
7896 int err, mode = *(int *)extra;
7897
7898 mutex_lock(&priv->action_mutex);
7899 if (!(priv->status & STATUS_INITIALIZED)) {
7900 err = -EIO;
7901 goto done;
7902 }
7903
7904 if (mode == 1)
7905 priv->config |= CFG_LONG_PREAMBLE;
7906 else if (mode == 0)
7907 priv->config &= ~CFG_LONG_PREAMBLE;
7908 else {
7909 err = -EINVAL;
7910 goto done;
7911 }
7912
7913 err = ipw2100_system_config(priv, 0);
7914
7915 done:
7916 mutex_unlock(&priv->action_mutex);
7917 return err;
7918}
7919
7920static int ipw2100_wx_get_preamble(struct net_device *dev,
7921 struct iw_request_info *info,
7922 union iwreq_data *wrqu, char *extra)
7923{
7924 /*
7925 * This can be called at any time. No action lock required
7926 */
7927
7928 struct ipw2100_priv *priv = libipw_priv(dev);
7929
7930 if (priv->config & CFG_LONG_PREAMBLE)
7931 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
7932 else
7933 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
7934
7935 return 0;
7936}
7937
7938#ifdef CONFIG_IPW2100_MONITOR
7939static int ipw2100_wx_set_crc_check(struct net_device *dev,
7940 struct iw_request_info *info,
7941 union iwreq_data *wrqu, char *extra)
7942{
7943 struct ipw2100_priv *priv = libipw_priv(dev);
7944 int err, mode = *(int *)extra;
7945
7946 mutex_lock(&priv->action_mutex);
7947 if (!(priv->status & STATUS_INITIALIZED)) {
7948 err = -EIO;
7949 goto done;
7950 }
7951
7952 if (mode == 1)
7953 priv->config |= CFG_CRC_CHECK;
7954 else if (mode == 0)
7955 priv->config &= ~CFG_CRC_CHECK;
7956 else {
7957 err = -EINVAL;
7958 goto done;
7959 }
7960 err = 0;
7961
7962 done:
7963 mutex_unlock(&priv->action_mutex);
7964 return err;
7965}
7966
7967static int ipw2100_wx_get_crc_check(struct net_device *dev,
7968 struct iw_request_info *info,
7969 union iwreq_data *wrqu, char *extra)
7970{
7971 /*
7972 * This can be called at any time. No action lock required
7973 */
7974
7975 struct ipw2100_priv *priv = libipw_priv(dev);
7976
7977 if (priv->config & CFG_CRC_CHECK)
7978 snprintf(wrqu->name, IFNAMSIZ, "CRC checked (1)");
7979 else
7980 snprintf(wrqu->name, IFNAMSIZ, "CRC ignored (0)");
7981
7982 return 0;
7983}
7984#endif /* CONFIG_IPW2100_MONITOR */
7985
7986static iw_handler ipw2100_wx_handlers[] = {
7987 IW_HANDLER(SIOCGIWNAME, ipw2100_wx_get_name),
7988 IW_HANDLER(SIOCSIWFREQ, ipw2100_wx_set_freq),
7989 IW_HANDLER(SIOCGIWFREQ, ipw2100_wx_get_freq),
7990 IW_HANDLER(SIOCSIWMODE, ipw2100_wx_set_mode),
7991 IW_HANDLER(SIOCGIWMODE, ipw2100_wx_get_mode),
7992 IW_HANDLER(SIOCGIWRANGE, ipw2100_wx_get_range),
7993 IW_HANDLER(SIOCSIWAP, ipw2100_wx_set_wap),
7994 IW_HANDLER(SIOCGIWAP, ipw2100_wx_get_wap),
7995 IW_HANDLER(SIOCSIWMLME, ipw2100_wx_set_mlme),
7996 IW_HANDLER(SIOCSIWSCAN, ipw2100_wx_set_scan),
7997 IW_HANDLER(SIOCGIWSCAN, ipw2100_wx_get_scan),
7998 IW_HANDLER(SIOCSIWESSID, ipw2100_wx_set_essid),
7999 IW_HANDLER(SIOCGIWESSID, ipw2100_wx_get_essid),
8000 IW_HANDLER(SIOCSIWNICKN, ipw2100_wx_set_nick),
8001 IW_HANDLER(SIOCGIWNICKN, ipw2100_wx_get_nick),
8002 IW_HANDLER(SIOCSIWRATE, ipw2100_wx_set_rate),
8003 IW_HANDLER(SIOCGIWRATE, ipw2100_wx_get_rate),
8004 IW_HANDLER(SIOCSIWRTS, ipw2100_wx_set_rts),
8005 IW_HANDLER(SIOCGIWRTS, ipw2100_wx_get_rts),
8006 IW_HANDLER(SIOCSIWFRAG, ipw2100_wx_set_frag),
8007 IW_HANDLER(SIOCGIWFRAG, ipw2100_wx_get_frag),
8008 IW_HANDLER(SIOCSIWTXPOW, ipw2100_wx_set_txpow),
8009 IW_HANDLER(SIOCGIWTXPOW, ipw2100_wx_get_txpow),
8010 IW_HANDLER(SIOCSIWRETRY, ipw2100_wx_set_retry),
8011 IW_HANDLER(SIOCGIWRETRY, ipw2100_wx_get_retry),
8012 IW_HANDLER(SIOCSIWENCODE, ipw2100_wx_set_encode),
8013 IW_HANDLER(SIOCGIWENCODE, ipw2100_wx_get_encode),
8014 IW_HANDLER(SIOCSIWPOWER, ipw2100_wx_set_power),
8015 IW_HANDLER(SIOCGIWPOWER, ipw2100_wx_get_power),
8016 IW_HANDLER(SIOCSIWGENIE, ipw2100_wx_set_genie),
8017 IW_HANDLER(SIOCGIWGENIE, ipw2100_wx_get_genie),
8018 IW_HANDLER(SIOCSIWAUTH, ipw2100_wx_set_auth),
8019 IW_HANDLER(SIOCGIWAUTH, ipw2100_wx_get_auth),
8020 IW_HANDLER(SIOCSIWENCODEEXT, ipw2100_wx_set_encodeext),
8021 IW_HANDLER(SIOCGIWENCODEEXT, ipw2100_wx_get_encodeext),
8022};
8023
8024#define IPW2100_PRIV_SET_MONITOR SIOCIWFIRSTPRIV
8025#define IPW2100_PRIV_RESET SIOCIWFIRSTPRIV+1
8026#define IPW2100_PRIV_SET_POWER SIOCIWFIRSTPRIV+2
8027#define IPW2100_PRIV_GET_POWER SIOCIWFIRSTPRIV+3
8028#define IPW2100_PRIV_SET_LONGPREAMBLE SIOCIWFIRSTPRIV+4
8029#define IPW2100_PRIV_GET_LONGPREAMBLE SIOCIWFIRSTPRIV+5
8030#define IPW2100_PRIV_SET_CRC_CHECK SIOCIWFIRSTPRIV+6
8031#define IPW2100_PRIV_GET_CRC_CHECK SIOCIWFIRSTPRIV+7
8032
8033static const struct iw_priv_args ipw2100_private_args[] = {
8034
8035#ifdef CONFIG_IPW2100_MONITOR
8036 {
8037 IPW2100_PRIV_SET_MONITOR,
8038 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
8039 {
8040 IPW2100_PRIV_RESET,
8041 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
8042#endif /* CONFIG_IPW2100_MONITOR */
8043
8044 {
8045 IPW2100_PRIV_SET_POWER,
8046 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_power"},
8047 {
8048 IPW2100_PRIV_GET_POWER,
8049 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_POWER_STRING,
8050 "get_power"},
8051 {
8052 IPW2100_PRIV_SET_LONGPREAMBLE,
8053 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"},
8054 {
8055 IPW2100_PRIV_GET_LONGPREAMBLE,
8056 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_preamble"},
8057#ifdef CONFIG_IPW2100_MONITOR
8058 {
8059 IPW2100_PRIV_SET_CRC_CHECK,
8060 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_crc_check"},
8061 {
8062 IPW2100_PRIV_GET_CRC_CHECK,
8063 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_crc_check"},
8064#endif /* CONFIG_IPW2100_MONITOR */
8065};
8066
8067static iw_handler ipw2100_private_handler[] = {
8068#ifdef CONFIG_IPW2100_MONITOR
8069 ipw2100_wx_set_promisc,
8070 ipw2100_wx_reset,
8071#else /* CONFIG_IPW2100_MONITOR */
8072 NULL,
8073 NULL,
8074#endif /* CONFIG_IPW2100_MONITOR */
8075 ipw2100_wx_set_powermode,
8076 ipw2100_wx_get_powermode,
8077 ipw2100_wx_set_preamble,
8078 ipw2100_wx_get_preamble,
8079#ifdef CONFIG_IPW2100_MONITOR
8080 ipw2100_wx_set_crc_check,
8081 ipw2100_wx_get_crc_check,
8082#else /* CONFIG_IPW2100_MONITOR */
8083 NULL,
8084 NULL,
8085#endif /* CONFIG_IPW2100_MONITOR */
8086};
8087
8088/*
8089 * Get wireless statistics.
8090 * Called by /proc/net/wireless
8091 * Also called by SIOCGIWSTATS
8092 */
8093static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev)
8094{
8095 enum {
8096 POOR = 30,
8097 FAIR = 60,
8098 GOOD = 80,
8099 VERY_GOOD = 90,
8100 EXCELLENT = 95,
8101 PERFECT = 100
8102 };
8103 int rssi_qual;
8104 int tx_qual;
8105 int beacon_qual;
8106 int quality;
8107
8108 struct ipw2100_priv *priv = libipw_priv(dev);
8109 struct iw_statistics *wstats;
8110 u32 rssi, tx_retries, missed_beacons, tx_failures;
8111 u32 ord_len = sizeof(u32);
8112
8113 if (!priv)
8114 return (struct iw_statistics *)NULL;
8115
8116 wstats = &priv->wstats;
8117
8118 /* if hw is disabled, then ipw2100_get_ordinal() can't be called.
8119 * ipw2100_wx_wireless_stats seems to be called before fw is
8120 * initialized. STATUS_ASSOCIATED will only be set if the hw is up
8121 * and associated; if not associcated, the values are all meaningless
8122 * anyway, so set them all to NULL and INVALID */
8123 if (!(priv->status & STATUS_ASSOCIATED)) {
8124 wstats->miss.beacon = 0;
8125 wstats->discard.retries = 0;
8126 wstats->qual.qual = 0;
8127 wstats->qual.level = 0;
8128 wstats->qual.noise = 0;
8129 wstats->qual.updated = 7;
8130 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
8131 IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
8132 return wstats;
8133 }
8134
8135 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_MISSED_BCNS,
8136 &missed_beacons, &ord_len))
8137 goto fail_get_ordinal;
8138
8139 /* If we don't have a connection the quality and level is 0 */
8140 if (!(priv->status & STATUS_ASSOCIATED)) {
8141 wstats->qual.qual = 0;
8142 wstats->qual.level = 0;
8143 } else {
8144 if (ipw2100_get_ordinal(priv, IPW_ORD_RSSI_AVG_CURR,
8145 &rssi, &ord_len))
8146 goto fail_get_ordinal;
8147 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8148 if (rssi < 10)
8149 rssi_qual = rssi * POOR / 10;
8150 else if (rssi < 15)
8151 rssi_qual = (rssi - 10) * (FAIR - POOR) / 5 + POOR;
8152 else if (rssi < 20)
8153 rssi_qual = (rssi - 15) * (GOOD - FAIR) / 5 + FAIR;
8154 else if (rssi < 30)
8155 rssi_qual = (rssi - 20) * (VERY_GOOD - GOOD) /
8156 10 + GOOD;
8157 else
8158 rssi_qual = (rssi - 30) * (PERFECT - VERY_GOOD) /
8159 10 + VERY_GOOD;
8160
8161 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_RETRIES,
8162 &tx_retries, &ord_len))
8163 goto fail_get_ordinal;
8164
8165 if (tx_retries > 75)
8166 tx_qual = (90 - tx_retries) * POOR / 15;
8167 else if (tx_retries > 70)
8168 tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR;
8169 else if (tx_retries > 65)
8170 tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR;
8171 else if (tx_retries > 50)
8172 tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) /
8173 15 + GOOD;
8174 else
8175 tx_qual = (50 - tx_retries) *
8176 (PERFECT - VERY_GOOD) / 50 + VERY_GOOD;
8177
8178 if (missed_beacons > 50)
8179 beacon_qual = (60 - missed_beacons) * POOR / 10;
8180 else if (missed_beacons > 40)
8181 beacon_qual = (50 - missed_beacons) * (FAIR - POOR) /
8182 10 + POOR;
8183 else if (missed_beacons > 32)
8184 beacon_qual = (40 - missed_beacons) * (GOOD - FAIR) /
8185 18 + FAIR;
8186 else if (missed_beacons > 20)
8187 beacon_qual = (32 - missed_beacons) *
8188 (VERY_GOOD - GOOD) / 20 + GOOD;
8189 else
8190 beacon_qual = (20 - missed_beacons) *
8191 (PERFECT - VERY_GOOD) / 20 + VERY_GOOD;
8192
8193 quality = min(tx_qual, rssi_qual);
8194 quality = min(beacon_qual, quality);
8195
8196#ifdef CONFIG_IPW2100_DEBUG
8197 if (beacon_qual == quality)
8198 IPW_DEBUG_WX("Quality clamped by Missed Beacons\n");
8199 else if (tx_qual == quality)
8200 IPW_DEBUG_WX("Quality clamped by Tx Retries\n");
8201 else if (quality != 100)
8202 IPW_DEBUG_WX("Quality clamped by Signal Strength\n");
8203 else
8204 IPW_DEBUG_WX("Quality not clamped.\n");
8205#endif
8206
8207 wstats->qual.qual = quality;
8208 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8209 }
8210
8211 wstats->qual.noise = 0;
8212 wstats->qual.updated = 7;
8213 wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
8214
8215 /* FIXME: this is percent and not a # */
8216 wstats->miss.beacon = missed_beacons;
8217
8218 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURES,
8219 &tx_failures, &ord_len))
8220 goto fail_get_ordinal;
8221 wstats->discard.retries = tx_failures;
8222
8223 return wstats;
8224
8225 fail_get_ordinal:
8226 IPW_DEBUG_WX("failed querying ordinals.\n");
8227
8228 return (struct iw_statistics *)NULL;
8229}
8230
8231static const struct iw_handler_def ipw2100_wx_handler_def = {
8232 .standard = ipw2100_wx_handlers,
8233 .num_standard = ARRAY_SIZE(ipw2100_wx_handlers),
8234 .num_private = ARRAY_SIZE(ipw2100_private_handler),
8235 .num_private_args = ARRAY_SIZE(ipw2100_private_args),
8236 .private = (iw_handler *) ipw2100_private_handler,
8237 .private_args = (struct iw_priv_args *)ipw2100_private_args,
8238 .get_wireless_stats = ipw2100_wx_wireless_stats,
8239};
8240
8241static void ipw2100_wx_event_work(struct work_struct *work)
8242{
8243 struct ipw2100_priv *priv =
8244 container_of(work, struct ipw2100_priv, wx_event_work.work);
8245 union iwreq_data wrqu;
8246 unsigned int len = ETH_ALEN;
8247
8248 if (priv->status & STATUS_STOPPING)
8249 return;
8250
8251 mutex_lock(&priv->action_mutex);
8252
8253 IPW_DEBUG_WX("enter\n");
8254
8255 mutex_unlock(&priv->action_mutex);
8256
8257 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
8258
8259 /* Fetch BSSID from the hardware */
8260 if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) ||
8261 priv->status & STATUS_RF_KILL_MASK ||
8262 ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
8263 &priv->bssid, &len)) {
8264 eth_zero_addr(wrqu.ap_addr.sa_data);
8265 } else {
8266 /* We now have the BSSID, so can finish setting to the full
8267 * associated state */
8268 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
8269 memcpy(priv->ieee->bssid, priv->bssid, ETH_ALEN);
8270 priv->status &= ~STATUS_ASSOCIATING;
8271 priv->status |= STATUS_ASSOCIATED;
8272 netif_carrier_on(priv->net_dev);
8273 netif_wake_queue(priv->net_dev);
8274 }
8275
8276 if (!(priv->status & STATUS_ASSOCIATED)) {
8277 IPW_DEBUG_WX("Configuring ESSID\n");
8278 mutex_lock(&priv->action_mutex);
8279 /* This is a disassociation event, so kick the firmware to
8280 * look for another AP */
8281 if (priv->config & CFG_STATIC_ESSID)
8282 ipw2100_set_essid(priv, priv->essid, priv->essid_len,
8283 0);
8284 else
8285 ipw2100_set_essid(priv, NULL, 0, 0);
8286 mutex_unlock(&priv->action_mutex);
8287 }
8288
8289 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
8290}
8291
8292#define IPW2100_FW_MAJOR_VERSION 1
8293#define IPW2100_FW_MINOR_VERSION 3
8294
8295#define IPW2100_FW_MINOR(x) ((x & 0xff) >> 8)
8296#define IPW2100_FW_MAJOR(x) (x & 0xff)
8297
8298#define IPW2100_FW_VERSION ((IPW2100_FW_MINOR_VERSION << 8) | \
8299 IPW2100_FW_MAJOR_VERSION)
8300
8301#define IPW2100_FW_PREFIX "ipw2100-" __stringify(IPW2100_FW_MAJOR_VERSION) \
8302"." __stringify(IPW2100_FW_MINOR_VERSION)
8303
8304#define IPW2100_FW_NAME(x) IPW2100_FW_PREFIX "" x ".fw"
8305
8306/*
8307
8308BINARY FIRMWARE HEADER FORMAT
8309
8310offset length desc
83110 2 version
83122 2 mode == 0:BSS,1:IBSS,2:MONITOR
83134 4 fw_len
83148 4 uc_len
8315C fw_len firmware data
831612 + fw_len uc_len microcode data
8317
8318*/
8319
8320struct ipw2100_fw_header {
8321 short version;
8322 short mode;
8323 unsigned int fw_size;
8324 unsigned int uc_size;
8325} __packed;
8326
8327static int ipw2100_mod_firmware_load(struct ipw2100_fw *fw)
8328{
8329 struct ipw2100_fw_header *h =
8330 (struct ipw2100_fw_header *)fw->fw_entry->data;
8331
8332 if (IPW2100_FW_MAJOR(h->version) != IPW2100_FW_MAJOR_VERSION) {
8333 printk(KERN_WARNING DRV_NAME ": Firmware image not compatible "
8334 "(detected version id of %u). "
8335 "See Documentation/networking/device_drivers/wifi/intel/ipw2100.rst\n",
8336 h->version);
8337 return 1;
8338 }
8339
8340 fw->version = h->version;
8341 fw->fw.data = fw->fw_entry->data + sizeof(struct ipw2100_fw_header);
8342 fw->fw.size = h->fw_size;
8343 fw->uc.data = fw->fw.data + h->fw_size;
8344 fw->uc.size = h->uc_size;
8345
8346 return 0;
8347}
8348
8349static int ipw2100_get_firmware(struct ipw2100_priv *priv,
8350 struct ipw2100_fw *fw)
8351{
8352 char *fw_name;
8353 int rc;
8354
8355 IPW_DEBUG_INFO("%s: Using hotplug firmware load.\n",
8356 priv->net_dev->name);
8357
8358 switch (priv->ieee->iw_mode) {
8359 case IW_MODE_ADHOC:
8360 fw_name = IPW2100_FW_NAME("-i");
8361 break;
8362#ifdef CONFIG_IPW2100_MONITOR
8363 case IW_MODE_MONITOR:
8364 fw_name = IPW2100_FW_NAME("-p");
8365 break;
8366#endif
8367 case IW_MODE_INFRA:
8368 default:
8369 fw_name = IPW2100_FW_NAME("");
8370 break;
8371 }
8372
8373 rc = request_firmware(&fw->fw_entry, fw_name, &priv->pci_dev->dev);
8374
8375 if (rc < 0) {
8376 printk(KERN_ERR DRV_NAME ": "
8377 "%s: Firmware '%s' not available or load failed.\n",
8378 priv->net_dev->name, fw_name);
8379 return rc;
8380 }
8381 IPW_DEBUG_INFO("firmware data %p size %zd\n", fw->fw_entry->data,
8382 fw->fw_entry->size);
8383
8384 ipw2100_mod_firmware_load(fw);
8385
8386 return 0;
8387}
8388
8389MODULE_FIRMWARE(IPW2100_FW_NAME("-i"));
8390#ifdef CONFIG_IPW2100_MONITOR
8391MODULE_FIRMWARE(IPW2100_FW_NAME("-p"));
8392#endif
8393MODULE_FIRMWARE(IPW2100_FW_NAME(""));
8394
8395static void ipw2100_release_firmware(struct ipw2100_priv *priv,
8396 struct ipw2100_fw *fw)
8397{
8398 fw->version = 0;
8399 release_firmware(fw->fw_entry);
8400 fw->fw_entry = NULL;
8401}
8402
8403static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
8404 size_t max)
8405{
8406 char ver[MAX_FW_VERSION_LEN];
8407 u32 len = MAX_FW_VERSION_LEN;
8408 u32 tmp;
8409 int i;
8410 /* firmware version is an ascii string (max len of 14) */
8411 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_FW_VER_NUM, ver, &len))
8412 return -EIO;
8413 tmp = max;
8414 if (len >= max)
8415 len = max - 1;
8416 for (i = 0; i < len; i++)
8417 buf[i] = ver[i];
8418 buf[i] = '\0';
8419 return tmp;
8420}
8421
8422static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
8423 size_t max)
8424{
8425 u32 ver;
8426 u32 len = sizeof(ver);
8427 /* microcode version is a 32 bit integer */
8428 if (ipw2100_get_ordinal(priv, IPW_ORD_UCODE_VERSION, &ver, &len))
8429 return -EIO;
8430 return snprintf(buf, max, "%08X", ver);
8431}
8432
8433/*
8434 * On exit, the firmware will have been freed from the fw list
8435 */
8436static int ipw2100_fw_download(struct ipw2100_priv *priv, struct ipw2100_fw *fw)
8437{
8438 /* firmware is constructed of N contiguous entries, each entry is
8439 * structured as:
8440 *
8441 * offset sie desc
8442 * 0 4 address to write to
8443 * 4 2 length of data run
8444 * 6 length data
8445 */
8446 unsigned int addr;
8447 unsigned short len;
8448
8449 const unsigned char *firmware_data = fw->fw.data;
8450 unsigned int firmware_data_left = fw->fw.size;
8451
8452 while (firmware_data_left > 0) {
8453 addr = *(u32 *) (firmware_data);
8454 firmware_data += 4;
8455 firmware_data_left -= 4;
8456
8457 len = *(u16 *) (firmware_data);
8458 firmware_data += 2;
8459 firmware_data_left -= 2;
8460
8461 if (len > 32) {
8462 printk(KERN_ERR DRV_NAME ": "
8463 "Invalid firmware run-length of %d bytes\n",
8464 len);
8465 return -EINVAL;
8466 }
8467
8468 write_nic_memory(priv->net_dev, addr, len, firmware_data);
8469 firmware_data += len;
8470 firmware_data_left -= len;
8471 }
8472
8473 return 0;
8474}
8475
8476struct symbol_alive_response {
8477 u8 cmd_id;
8478 u8 seq_num;
8479 u8 ucode_rev;
8480 u8 eeprom_valid;
8481 u16 valid_flags;
8482 u8 IEEE_addr[6];
8483 u16 flags;
8484 u16 pcb_rev;
8485 u16 clock_settle_time; // 1us LSB
8486 u16 powerup_settle_time; // 1us LSB
8487 u16 hop_settle_time; // 1us LSB
8488 u8 date[3]; // month, day, year
8489 u8 time[2]; // hours, minutes
8490 u8 ucode_valid;
8491};
8492
8493static int ipw2100_ucode_download(struct ipw2100_priv *priv,
8494 struct ipw2100_fw *fw)
8495{
8496 struct net_device *dev = priv->net_dev;
8497 const unsigned char *microcode_data = fw->uc.data;
8498 unsigned int microcode_data_left = fw->uc.size;
8499 void __iomem *reg = priv->ioaddr;
8500
8501 struct symbol_alive_response response;
8502 int i, j;
8503 u8 data;
8504
8505 /* Symbol control */
8506 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8507 readl(reg);
8508 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8509 readl(reg);
8510
8511 /* HW config */
8512 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */
8513 readl(reg);
8514 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */
8515 readl(reg);
8516
8517 /* EN_CS_ACCESS bit to reset control store pointer */
8518 write_nic_byte(dev, 0x210000, 0x40);
8519 readl(reg);
8520 write_nic_byte(dev, 0x210000, 0x0);
8521 readl(reg);
8522 write_nic_byte(dev, 0x210000, 0x40);
8523 readl(reg);
8524
8525 /* copy microcode from buffer into Symbol */
8526
8527 while (microcode_data_left > 0) {
8528 write_nic_byte(dev, 0x210010, *microcode_data++);
8529 write_nic_byte(dev, 0x210010, *microcode_data++);
8530 microcode_data_left -= 2;
8531 }
8532
8533 /* EN_CS_ACCESS bit to reset the control store pointer */
8534 write_nic_byte(dev, 0x210000, 0x0);
8535 readl(reg);
8536
8537 /* Enable System (Reg 0)
8538 * first enable causes garbage in RX FIFO */
8539 write_nic_byte(dev, 0x210000, 0x0);
8540 readl(reg);
8541 write_nic_byte(dev, 0x210000, 0x80);
8542 readl(reg);
8543
8544 /* Reset External Baseband Reg */
8545 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8546 readl(reg);
8547 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8548 readl(reg);
8549
8550 /* HW Config (Reg 5) */
8551 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16
8552 readl(reg);
8553 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16
8554 readl(reg);
8555
8556 /* Enable System (Reg 0)
8557 * second enable should be OK */
8558 write_nic_byte(dev, 0x210000, 0x00); // clear enable system
8559 readl(reg);
8560 write_nic_byte(dev, 0x210000, 0x80); // set enable system
8561
8562 /* check Symbol is enabled - upped this from 5 as it wasn't always
8563 * catching the update */
8564 for (i = 0; i < 10; i++) {
8565 udelay(10);
8566
8567 /* check Dino is enabled bit */
8568 read_nic_byte(dev, 0x210000, &data);
8569 if (data & 0x1)
8570 break;
8571 }
8572
8573 if (i == 10) {
8574 printk(KERN_ERR DRV_NAME ": %s: Error initializing Symbol\n",
8575 dev->name);
8576 return -EIO;
8577 }
8578
8579 /* Get Symbol alive response */
8580 for (i = 0; i < 30; i++) {
8581 /* Read alive response structure */
8582 for (j = 0;
8583 j < (sizeof(struct symbol_alive_response) >> 1); j++)
8584 read_nic_word(dev, 0x210004, ((u16 *) & response) + j);
8585
8586 if ((response.cmd_id == 1) && (response.ucode_valid == 0x1))
8587 break;
8588 udelay(10);
8589 }
8590
8591 if (i == 30) {
8592 printk(KERN_ERR DRV_NAME
8593 ": %s: No response from Symbol - hw not alive\n",
8594 dev->name);
8595 printk_buf(IPW_DL_ERROR, (u8 *) & response, sizeof(response));
8596 return -EIO;
8597 }
8598
8599 return 0;
8600}