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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * NXP Wireless LAN device driver: debugfs
4 *
5 * Copyright 2011-2020 NXP
6 */
7
8#include <linux/debugfs.h>
9
10#include "main.h"
11#include "11n.h"
12
13
14static struct dentry *mwifiex_dfs_dir;
15
16static char *bss_modes[] = {
17 "UNSPECIFIED",
18 "ADHOC",
19 "STATION",
20 "AP",
21 "AP_VLAN",
22 "WDS",
23 "MONITOR",
24 "MESH_POINT",
25 "P2P_CLIENT",
26 "P2P_GO",
27 "P2P_DEVICE",
28};
29
30/*
31 * Proc info file read handler.
32 *
33 * This function is called when the 'info' file is opened for reading.
34 * It prints the following driver related information -
35 * - Driver name
36 * - Driver version
37 * - Driver extended version
38 * - Interface name
39 * - BSS mode
40 * - Media state (connected or disconnected)
41 * - MAC address
42 * - Total number of Tx bytes
43 * - Total number of Rx bytes
44 * - Total number of Tx packets
45 * - Total number of Rx packets
46 * - Total number of dropped Tx packets
47 * - Total number of dropped Rx packets
48 * - Total number of corrupted Tx packets
49 * - Total number of corrupted Rx packets
50 * - Carrier status (on or off)
51 * - Tx queue status (started or stopped)
52 *
53 * For STA mode drivers, it also prints the following extra -
54 * - ESSID
55 * - BSSID
56 * - Channel
57 * - Region code
58 * - Multicast count
59 * - Multicast addresses
60 */
61static ssize_t
62mwifiex_info_read(struct file *file, char __user *ubuf,
63 size_t count, loff_t *ppos)
64{
65 struct mwifiex_private *priv =
66 (struct mwifiex_private *) file->private_data;
67 struct net_device *netdev = priv->netdev;
68 struct netdev_hw_addr *ha;
69 struct netdev_queue *txq;
70 unsigned long page = get_zeroed_page(GFP_KERNEL);
71 char *p = (char *) page, fmt[64];
72 struct mwifiex_bss_info info;
73 ssize_t ret;
74 int i = 0;
75
76 if (!p)
77 return -ENOMEM;
78
79 memset(&info, 0, sizeof(info));
80 ret = mwifiex_get_bss_info(priv, &info);
81 if (ret)
82 goto free_and_exit;
83
84 mwifiex_drv_get_driver_version(priv->adapter, fmt, sizeof(fmt) - 1);
85
86 mwifiex_get_ver_ext(priv, 0);
87
88 p += sprintf(p, "driver_name = " "\"mwifiex\"\n");
89 p += sprintf(p, "driver_version = %s", fmt);
90 p += sprintf(p, "\nverext = %s", priv->version_str);
91 p += sprintf(p, "\ninterface_name=\"%s\"\n", netdev->name);
92
93 if (info.bss_mode >= ARRAY_SIZE(bss_modes))
94 p += sprintf(p, "bss_mode=\"%d\"\n", info.bss_mode);
95 else
96 p += sprintf(p, "bss_mode=\"%s\"\n", bss_modes[info.bss_mode]);
97
98 p += sprintf(p, "media_state=\"%s\"\n",
99 (!priv->media_connected ? "Disconnected" : "Connected"));
100 p += sprintf(p, "mac_address=\"%pM\"\n", netdev->dev_addr);
101
102 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) {
103 p += sprintf(p, "multicast_count=\"%d\"\n",
104 netdev_mc_count(netdev));
105 p += sprintf(p, "essid=\"%.*s\"\n", info.ssid.ssid_len,
106 info.ssid.ssid);
107 p += sprintf(p, "bssid=\"%pM\"\n", info.bssid);
108 p += sprintf(p, "channel=\"%d\"\n", (int) info.bss_chan);
109 p += sprintf(p, "country_code = \"%s\"\n", info.country_code);
110 p += sprintf(p, "region_code=\"0x%x\"\n",
111 priv->adapter->region_code);
112
113 netdev_for_each_mc_addr(ha, netdev)
114 p += sprintf(p, "multicast_address[%d]=\"%pM\"\n",
115 i++, ha->addr);
116 }
117
118 p += sprintf(p, "num_tx_bytes = %lu\n", priv->stats.tx_bytes);
119 p += sprintf(p, "num_rx_bytes = %lu\n", priv->stats.rx_bytes);
120 p += sprintf(p, "num_tx_pkts = %lu\n", priv->stats.tx_packets);
121 p += sprintf(p, "num_rx_pkts = %lu\n", priv->stats.rx_packets);
122 p += sprintf(p, "num_tx_pkts_dropped = %lu\n", priv->stats.tx_dropped);
123 p += sprintf(p, "num_rx_pkts_dropped = %lu\n", priv->stats.rx_dropped);
124 p += sprintf(p, "num_tx_pkts_err = %lu\n", priv->stats.tx_errors);
125 p += sprintf(p, "num_rx_pkts_err = %lu\n", priv->stats.rx_errors);
126 p += sprintf(p, "carrier %s\n", ((netif_carrier_ok(priv->netdev))
127 ? "on" : "off"));
128 p += sprintf(p, "tx queue");
129 for (i = 0; i < netdev->num_tx_queues; i++) {
130 txq = netdev_get_tx_queue(netdev, i);
131 p += sprintf(p, " %d:%s", i, netif_tx_queue_stopped(txq) ?
132 "stopped" : "started");
133 }
134 p += sprintf(p, "\n");
135
136 ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page,
137 (unsigned long) p - page);
138
139free_and_exit:
140 free_page(page);
141 return ret;
142}
143
144/*
145 * Proc getlog file read handler.
146 *
147 * This function is called when the 'getlog' file is opened for reading
148 * It prints the following log information -
149 * - Number of multicast Tx frames
150 * - Number of failed packets
151 * - Number of Tx retries
152 * - Number of multicast Tx retries
153 * - Number of duplicate frames
154 * - Number of RTS successes
155 * - Number of RTS failures
156 * - Number of ACK failures
157 * - Number of fragmented Rx frames
158 * - Number of multicast Rx frames
159 * - Number of FCS errors
160 * - Number of Tx frames
161 * - WEP ICV error counts
162 * - Number of received beacons
163 * - Number of missed beacons
164 */
165static ssize_t
166mwifiex_getlog_read(struct file *file, char __user *ubuf,
167 size_t count, loff_t *ppos)
168{
169 struct mwifiex_private *priv =
170 (struct mwifiex_private *) file->private_data;
171 unsigned long page = get_zeroed_page(GFP_KERNEL);
172 char *p = (char *) page;
173 ssize_t ret;
174 struct mwifiex_ds_get_stats stats;
175
176 if (!p)
177 return -ENOMEM;
178
179 memset(&stats, 0, sizeof(stats));
180 ret = mwifiex_get_stats_info(priv, &stats);
181 if (ret)
182 goto free_and_exit;
183
184 p += sprintf(p, "\n"
185 "mcasttxframe %u\n"
186 "failed %u\n"
187 "retry %u\n"
188 "multiretry %u\n"
189 "framedup %u\n"
190 "rtssuccess %u\n"
191 "rtsfailure %u\n"
192 "ackfailure %u\n"
193 "rxfrag %u\n"
194 "mcastrxframe %u\n"
195 "fcserror %u\n"
196 "txframe %u\n"
197 "wepicverrcnt-1 %u\n"
198 "wepicverrcnt-2 %u\n"
199 "wepicverrcnt-3 %u\n"
200 "wepicverrcnt-4 %u\n"
201 "bcn_rcv_cnt %u\n"
202 "bcn_miss_cnt %u\n",
203 stats.mcast_tx_frame,
204 stats.failed,
205 stats.retry,
206 stats.multi_retry,
207 stats.frame_dup,
208 stats.rts_success,
209 stats.rts_failure,
210 stats.ack_failure,
211 stats.rx_frag,
212 stats.mcast_rx_frame,
213 stats.fcs_error,
214 stats.tx_frame,
215 stats.wep_icv_error[0],
216 stats.wep_icv_error[1],
217 stats.wep_icv_error[2],
218 stats.wep_icv_error[3],
219 stats.bcn_rcv_cnt,
220 stats.bcn_miss_cnt);
221
222
223 ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page,
224 (unsigned long) p - page);
225
226free_and_exit:
227 free_page(page);
228 return ret;
229}
230
231/* Sysfs histogram file read handler.
232 *
233 * This function is called when the 'histogram' file is opened for reading
234 * It prints the following histogram information -
235 * - Number of histogram samples
236 * - Receive packet number of each rx_rate
237 * - Receive packet number of each snr
238 * - Receive packet number of each nosie_flr
239 * - Receive packet number of each signal streath
240 */
241static ssize_t
242mwifiex_histogram_read(struct file *file, char __user *ubuf,
243 size_t count, loff_t *ppos)
244{
245 struct mwifiex_private *priv =
246 (struct mwifiex_private *)file->private_data;
247 ssize_t ret;
248 struct mwifiex_histogram_data *phist_data;
249 int i, value;
250 unsigned long page = get_zeroed_page(GFP_KERNEL);
251 char *p = (char *)page;
252
253 if (!p)
254 return -ENOMEM;
255
256 if (!priv || !priv->hist_data) {
257 ret = -EFAULT;
258 goto free_and_exit;
259 }
260
261 phist_data = priv->hist_data;
262
263 p += sprintf(p, "\n"
264 "total samples = %d\n",
265 atomic_read(&phist_data->num_samples));
266
267 p += sprintf(p,
268 "rx rates (in Mbps): 0=1M 1=2M 2=5.5M 3=11M 4=6M 5=9M 6=12M\n"
269 "7=18M 8=24M 9=36M 10=48M 11=54M 12-27=MCS0-15(BW20) 28-43=MCS0-15(BW40)\n");
270
271 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info)) {
272 p += sprintf(p,
273 "44-53=MCS0-9(VHT:BW20) 54-63=MCS0-9(VHT:BW40) 64-73=MCS0-9(VHT:BW80)\n\n");
274 } else {
275 p += sprintf(p, "\n");
276 }
277
278 for (i = 0; i < MWIFIEX_MAX_RX_RATES; i++) {
279 value = atomic_read(&phist_data->rx_rate[i]);
280 if (value)
281 p += sprintf(p, "rx_rate[%02d] = %d\n", i, value);
282 }
283
284 if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info)) {
285 for (i = MWIFIEX_MAX_RX_RATES; i < MWIFIEX_MAX_AC_RX_RATES;
286 i++) {
287 value = atomic_read(&phist_data->rx_rate[i]);
288 if (value)
289 p += sprintf(p, "rx_rate[%02d] = %d\n",
290 i, value);
291 }
292 }
293
294 for (i = 0; i < MWIFIEX_MAX_SNR; i++) {
295 value = atomic_read(&phist_data->snr[i]);
296 if (value)
297 p += sprintf(p, "snr[%02ddB] = %d\n", i, value);
298 }
299 for (i = 0; i < MWIFIEX_MAX_NOISE_FLR; i++) {
300 value = atomic_read(&phist_data->noise_flr[i]);
301 if (value)
302 p += sprintf(p, "noise_flr[%02ddBm] = %d\n",
303 (int)(i-128), value);
304 }
305 for (i = 0; i < MWIFIEX_MAX_SIG_STRENGTH; i++) {
306 value = atomic_read(&phist_data->sig_str[i]);
307 if (value)
308 p += sprintf(p, "sig_strength[-%02ddBm] = %d\n",
309 i, value);
310 }
311
312 ret = simple_read_from_buffer(ubuf, count, ppos, (char *)page,
313 (unsigned long)p - page);
314
315free_and_exit:
316 free_page(page);
317 return ret;
318}
319
320static ssize_t
321mwifiex_histogram_write(struct file *file, const char __user *ubuf,
322 size_t count, loff_t *ppos)
323{
324 struct mwifiex_private *priv = (void *)file->private_data;
325
326 if (priv && priv->hist_data)
327 mwifiex_hist_data_reset(priv);
328 return 0;
329}
330
331static struct mwifiex_debug_info info;
332
333/*
334 * Proc debug file read handler.
335 *
336 * This function is called when the 'debug' file is opened for reading
337 * It prints the following log information -
338 * - Interrupt count
339 * - WMM AC VO packets count
340 * - WMM AC VI packets count
341 * - WMM AC BE packets count
342 * - WMM AC BK packets count
343 * - Maximum Tx buffer size
344 * - Tx buffer size
345 * - Current Tx buffer size
346 * - Power Save mode
347 * - Power Save state
348 * - Deep Sleep status
349 * - Device wakeup required status
350 * - Number of wakeup tries
351 * - Host Sleep configured status
352 * - Host Sleep activated status
353 * - Number of Tx timeouts
354 * - Number of command timeouts
355 * - Last timed out command ID
356 * - Last timed out command action
357 * - Last command ID
358 * - Last command action
359 * - Last command index
360 * - Last command response ID
361 * - Last command response index
362 * - Last event
363 * - Last event index
364 * - Number of host to card command failures
365 * - Number of sleep confirm command failures
366 * - Number of host to card data failure
367 * - Number of deauthentication events
368 * - Number of disassociation events
369 * - Number of link lost events
370 * - Number of deauthentication commands
371 * - Number of association success commands
372 * - Number of association failure commands
373 * - Number of commands sent
374 * - Number of data packets sent
375 * - Number of command responses received
376 * - Number of events received
377 * - Tx BA stream table (TID, RA)
378 * - Rx reorder table (TID, TA, Start window, Window size, Buffer)
379 */
380static ssize_t
381mwifiex_debug_read(struct file *file, char __user *ubuf,
382 size_t count, loff_t *ppos)
383{
384 struct mwifiex_private *priv =
385 (struct mwifiex_private *) file->private_data;
386 unsigned long page = get_zeroed_page(GFP_KERNEL);
387 char *p = (char *) page;
388 ssize_t ret;
389
390 if (!p)
391 return -ENOMEM;
392
393 ret = mwifiex_get_debug_info(priv, &info);
394 if (ret)
395 goto free_and_exit;
396
397 p += mwifiex_debug_info_to_buffer(priv, p, &info);
398
399 ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page,
400 (unsigned long) p - page);
401
402free_and_exit:
403 free_page(page);
404 return ret;
405}
406
407static u32 saved_reg_type, saved_reg_offset, saved_reg_value;
408
409/*
410 * Proc regrdwr file write handler.
411 *
412 * This function is called when the 'regrdwr' file is opened for writing
413 *
414 * This function can be used to write to a register.
415 */
416static ssize_t
417mwifiex_regrdwr_write(struct file *file,
418 const char __user *ubuf, size_t count, loff_t *ppos)
419{
420 char *buf;
421 int ret;
422 u32 reg_type = 0, reg_offset = 0, reg_value = UINT_MAX;
423
424 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
425 if (IS_ERR(buf))
426 return PTR_ERR(buf);
427
428 if (sscanf(buf, "%u %x %x", ®_type, ®_offset, ®_value) != 3) {
429 ret = -EINVAL;
430 goto done;
431 }
432
433 if (reg_type == 0 || reg_offset == 0) {
434 ret = -EINVAL;
435 goto done;
436 } else {
437 saved_reg_type = reg_type;
438 saved_reg_offset = reg_offset;
439 saved_reg_value = reg_value;
440 ret = count;
441 }
442done:
443 kfree(buf);
444 return ret;
445}
446
447/*
448 * Proc regrdwr file read handler.
449 *
450 * This function is called when the 'regrdwr' file is opened for reading
451 *
452 * This function can be used to read from a register.
453 */
454static ssize_t
455mwifiex_regrdwr_read(struct file *file, char __user *ubuf,
456 size_t count, loff_t *ppos)
457{
458 struct mwifiex_private *priv =
459 (struct mwifiex_private *) file->private_data;
460 unsigned long addr = get_zeroed_page(GFP_KERNEL);
461 char *buf = (char *) addr;
462 int pos = 0, ret = 0;
463 u32 reg_value;
464
465 if (!buf)
466 return -ENOMEM;
467
468 if (!saved_reg_type) {
469 /* No command has been given */
470 pos += snprintf(buf, PAGE_SIZE, "0");
471 goto done;
472 }
473 /* Set command has been given */
474 if (saved_reg_value != UINT_MAX) {
475 ret = mwifiex_reg_write(priv, saved_reg_type, saved_reg_offset,
476 saved_reg_value);
477
478 pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n",
479 saved_reg_type, saved_reg_offset,
480 saved_reg_value);
481
482 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
483
484 goto done;
485 }
486 /* Get command has been given */
487 ret = mwifiex_reg_read(priv, saved_reg_type,
488 saved_reg_offset, ®_value);
489 if (ret) {
490 ret = -EINVAL;
491 goto done;
492 }
493
494 pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", saved_reg_type,
495 saved_reg_offset, reg_value);
496
497 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
498
499done:
500 free_page(addr);
501 return ret;
502}
503
504/* Proc debug_mask file read handler.
505 * This function is called when the 'debug_mask' file is opened for reading
506 * This function can be used read driver debugging mask value.
507 */
508static ssize_t
509mwifiex_debug_mask_read(struct file *file, char __user *ubuf,
510 size_t count, loff_t *ppos)
511{
512 struct mwifiex_private *priv =
513 (struct mwifiex_private *)file->private_data;
514 unsigned long page = get_zeroed_page(GFP_KERNEL);
515 char *buf = (char *)page;
516 size_t ret = 0;
517 int pos = 0;
518
519 if (!buf)
520 return -ENOMEM;
521
522 pos += snprintf(buf, PAGE_SIZE, "debug mask=0x%08x\n",
523 priv->adapter->debug_mask);
524 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
525
526 free_page(page);
527 return ret;
528}
529
530/* Proc debug_mask file read handler.
531 * This function is called when the 'debug_mask' file is opened for reading
532 * This function can be used read driver debugging mask value.
533 */
534static ssize_t
535mwifiex_debug_mask_write(struct file *file, const char __user *ubuf,
536 size_t count, loff_t *ppos)
537{
538 int ret;
539 unsigned long debug_mask;
540 struct mwifiex_private *priv = (void *)file->private_data;
541 char *buf;
542
543 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
544 if (IS_ERR(buf))
545 return PTR_ERR(buf);
546
547 if (kstrtoul(buf, 0, &debug_mask)) {
548 ret = -EINVAL;
549 goto done;
550 }
551
552 priv->adapter->debug_mask = debug_mask;
553 ret = count;
554done:
555 kfree(buf);
556 return ret;
557}
558
559/* debugfs verext file write handler.
560 * This function is called when the 'verext' file is opened for write
561 */
562static ssize_t
563mwifiex_verext_write(struct file *file, const char __user *ubuf,
564 size_t count, loff_t *ppos)
565{
566 int ret;
567 u32 versionstrsel;
568 struct mwifiex_private *priv = (void *)file->private_data;
569
570 ret = kstrtou32_from_user(ubuf, count, 10, &versionstrsel);
571 if (ret)
572 return ret;
573
574 priv->versionstrsel = versionstrsel;
575
576 return count;
577}
578
579/* Proc verext file read handler.
580 * This function is called when the 'verext' file is opened for reading
581 * This function can be used read driver exteneed verion string.
582 */
583static ssize_t
584mwifiex_verext_read(struct file *file, char __user *ubuf,
585 size_t count, loff_t *ppos)
586{
587 struct mwifiex_private *priv =
588 (struct mwifiex_private *)file->private_data;
589 char buf[256];
590 int ret;
591
592 mwifiex_get_ver_ext(priv, priv->versionstrsel);
593 ret = snprintf(buf, sizeof(buf), "version string: %s\n",
594 priv->version_str);
595
596 return simple_read_from_buffer(ubuf, count, ppos, buf, ret);
597}
598
599/* Proc memrw file write handler.
600 * This function is called when the 'memrw' file is opened for writing
601 * This function can be used to write to a memory location.
602 */
603static ssize_t
604mwifiex_memrw_write(struct file *file, const char __user *ubuf, size_t count,
605 loff_t *ppos)
606{
607 int ret;
608 char cmd;
609 struct mwifiex_ds_mem_rw mem_rw;
610 u16 cmd_action;
611 struct mwifiex_private *priv = (void *)file->private_data;
612 char *buf;
613
614 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
615 if (IS_ERR(buf))
616 return PTR_ERR(buf);
617
618 ret = sscanf(buf, "%c %x %x", &cmd, &mem_rw.addr, &mem_rw.value);
619 if (ret != 3) {
620 ret = -EINVAL;
621 goto done;
622 }
623
624 if ((cmd == 'r') || (cmd == 'R')) {
625 cmd_action = HostCmd_ACT_GEN_GET;
626 mem_rw.value = 0;
627 } else if ((cmd == 'w') || (cmd == 'W')) {
628 cmd_action = HostCmd_ACT_GEN_SET;
629 } else {
630 ret = -EINVAL;
631 goto done;
632 }
633
634 memcpy(&priv->mem_rw, &mem_rw, sizeof(mem_rw));
635 if (mwifiex_send_cmd(priv, HostCmd_CMD_MEM_ACCESS, cmd_action, 0,
636 &mem_rw, true))
637 ret = -1;
638 else
639 ret = count;
640
641done:
642 kfree(buf);
643 return ret;
644}
645
646/* Proc memrw file read handler.
647 * This function is called when the 'memrw' file is opened for reading
648 * This function can be used to read from a memory location.
649 */
650static ssize_t
651mwifiex_memrw_read(struct file *file, char __user *ubuf,
652 size_t count, loff_t *ppos)
653{
654 struct mwifiex_private *priv = (void *)file->private_data;
655 unsigned long addr = get_zeroed_page(GFP_KERNEL);
656 char *buf = (char *)addr;
657 int ret, pos = 0;
658
659 if (!buf)
660 return -ENOMEM;
661
662 pos += snprintf(buf, PAGE_SIZE, "0x%x 0x%x\n", priv->mem_rw.addr,
663 priv->mem_rw.value);
664 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
665
666 free_page(addr);
667 return ret;
668}
669
670static u32 saved_offset = -1, saved_bytes = -1;
671
672/*
673 * Proc rdeeprom file write handler.
674 *
675 * This function is called when the 'rdeeprom' file is opened for writing
676 *
677 * This function can be used to write to a RDEEPROM location.
678 */
679static ssize_t
680mwifiex_rdeeprom_write(struct file *file,
681 const char __user *ubuf, size_t count, loff_t *ppos)
682{
683 char *buf;
684 int ret = 0;
685 int offset = -1, bytes = -1;
686
687 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
688 if (IS_ERR(buf))
689 return PTR_ERR(buf);
690
691 if (sscanf(buf, "%d %d", &offset, &bytes) != 2) {
692 ret = -EINVAL;
693 goto done;
694 }
695
696 if (offset == -1 || bytes == -1) {
697 ret = -EINVAL;
698 goto done;
699 } else {
700 saved_offset = offset;
701 saved_bytes = bytes;
702 ret = count;
703 }
704done:
705 kfree(buf);
706 return ret;
707}
708
709/*
710 * Proc rdeeprom read write handler.
711 *
712 * This function is called when the 'rdeeprom' file is opened for reading
713 *
714 * This function can be used to read from a RDEEPROM location.
715 */
716static ssize_t
717mwifiex_rdeeprom_read(struct file *file, char __user *ubuf,
718 size_t count, loff_t *ppos)
719{
720 struct mwifiex_private *priv =
721 (struct mwifiex_private *) file->private_data;
722 unsigned long addr = get_zeroed_page(GFP_KERNEL);
723 char *buf = (char *) addr;
724 int pos, ret, i;
725 u8 value[MAX_EEPROM_DATA];
726
727 if (!buf)
728 return -ENOMEM;
729
730 if (saved_offset == -1) {
731 /* No command has been given */
732 pos = snprintf(buf, PAGE_SIZE, "0");
733 goto done;
734 }
735
736 /* Get command has been given */
737 ret = mwifiex_eeprom_read(priv, (u16) saved_offset,
738 (u16) saved_bytes, value);
739 if (ret) {
740 ret = -EINVAL;
741 goto out_free;
742 }
743
744 pos = snprintf(buf, PAGE_SIZE, "%d %d ", saved_offset, saved_bytes);
745
746 for (i = 0; i < saved_bytes; i++)
747 pos += scnprintf(buf + pos, PAGE_SIZE - pos, "%d ", value[i]);
748
749done:
750 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
751out_free:
752 free_page(addr);
753 return ret;
754}
755
756/* Proc hscfg file write handler
757 * This function can be used to configure the host sleep parameters.
758 */
759static ssize_t
760mwifiex_hscfg_write(struct file *file, const char __user *ubuf,
761 size_t count, loff_t *ppos)
762{
763 struct mwifiex_private *priv = (void *)file->private_data;
764 char *buf;
765 int ret, arg_num;
766 struct mwifiex_ds_hs_cfg hscfg;
767 int conditions = HS_CFG_COND_DEF;
768 u32 gpio = HS_CFG_GPIO_DEF, gap = HS_CFG_GAP_DEF;
769
770 buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
771 if (IS_ERR(buf))
772 return PTR_ERR(buf);
773
774 arg_num = sscanf(buf, "%d %x %x", &conditions, &gpio, &gap);
775
776 memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
777
778 if (arg_num > 3) {
779 mwifiex_dbg(priv->adapter, ERROR,
780 "Too many arguments\n");
781 ret = -EINVAL;
782 goto done;
783 }
784
785 if (arg_num >= 1 && arg_num < 3)
786 mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET,
787 MWIFIEX_SYNC_CMD, &hscfg);
788
789 if (arg_num) {
790 if (conditions == HS_CFG_CANCEL) {
791 mwifiex_cancel_hs(priv, MWIFIEX_ASYNC_CMD);
792 ret = count;
793 goto done;
794 }
795 hscfg.conditions = conditions;
796 }
797 if (arg_num >= 2)
798 hscfg.gpio = gpio;
799 if (arg_num == 3)
800 hscfg.gap = gap;
801
802 hscfg.is_invoke_hostcmd = false;
803 mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
804 MWIFIEX_SYNC_CMD, &hscfg);
805
806 mwifiex_enable_hs(priv->adapter);
807 clear_bit(MWIFIEX_IS_HS_ENABLING, &priv->adapter->work_flags);
808 ret = count;
809done:
810 kfree(buf);
811 return ret;
812}
813
814/* Proc hscfg file read handler
815 * This function can be used to read host sleep configuration
816 * parameters from driver.
817 */
818static ssize_t
819mwifiex_hscfg_read(struct file *file, char __user *ubuf,
820 size_t count, loff_t *ppos)
821{
822 struct mwifiex_private *priv = (void *)file->private_data;
823 unsigned long addr = get_zeroed_page(GFP_KERNEL);
824 char *buf = (char *)addr;
825 int pos, ret;
826 struct mwifiex_ds_hs_cfg hscfg;
827
828 if (!buf)
829 return -ENOMEM;
830
831 mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET,
832 MWIFIEX_SYNC_CMD, &hscfg);
833
834 pos = snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", hscfg.conditions,
835 hscfg.gpio, hscfg.gap);
836
837 ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
838
839 free_page(addr);
840 return ret;
841}
842
843static ssize_t
844mwifiex_timeshare_coex_read(struct file *file, char __user *ubuf,
845 size_t count, loff_t *ppos)
846{
847 struct mwifiex_private *priv = file->private_data;
848 char buf[3];
849 bool timeshare_coex;
850 int ret;
851 unsigned int len;
852
853 if (priv->adapter->fw_api_ver != MWIFIEX_FW_V15)
854 return -EOPNOTSUPP;
855
856 ret = mwifiex_send_cmd(priv, HostCmd_CMD_ROBUST_COEX,
857 HostCmd_ACT_GEN_GET, 0, ×hare_coex, true);
858 if (ret)
859 return ret;
860
861 len = sprintf(buf, "%d\n", timeshare_coex);
862 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
863}
864
865static ssize_t
866mwifiex_timeshare_coex_write(struct file *file, const char __user *ubuf,
867 size_t count, loff_t *ppos)
868{
869 bool timeshare_coex;
870 struct mwifiex_private *priv = file->private_data;
871 int ret;
872
873 if (priv->adapter->fw_api_ver != MWIFIEX_FW_V15)
874 return -EOPNOTSUPP;
875
876 ret = kstrtobool_from_user(ubuf, count, ×hare_coex);
877 if (ret)
878 return ret;
879
880 ret = mwifiex_send_cmd(priv, HostCmd_CMD_ROBUST_COEX,
881 HostCmd_ACT_GEN_SET, 0, ×hare_coex, true);
882 if (ret)
883 return ret;
884 else
885 return count;
886}
887
888static ssize_t
889mwifiex_reset_write(struct file *file,
890 const char __user *ubuf, size_t count, loff_t *ppos)
891{
892 struct mwifiex_private *priv = file->private_data;
893 struct mwifiex_adapter *adapter = priv->adapter;
894 bool result;
895 int rc;
896
897 rc = kstrtobool_from_user(ubuf, count, &result);
898 if (rc)
899 return rc;
900
901 if (!result)
902 return -EINVAL;
903
904 if (adapter->if_ops.card_reset) {
905 dev_info(adapter->dev, "Resetting per request\n");
906 adapter->if_ops.card_reset(adapter);
907 }
908
909 return count;
910}
911
912#define MWIFIEX_DFS_ADD_FILE(name) do { \
913 debugfs_create_file(#name, 0644, priv->dfs_dev_dir, priv, \
914 &mwifiex_dfs_##name##_fops); \
915} while (0);
916
917#define MWIFIEX_DFS_FILE_OPS(name) \
918static const struct file_operations mwifiex_dfs_##name##_fops = { \
919 .read = mwifiex_##name##_read, \
920 .write = mwifiex_##name##_write, \
921 .open = simple_open, \
922};
923
924#define MWIFIEX_DFS_FILE_READ_OPS(name) \
925static const struct file_operations mwifiex_dfs_##name##_fops = { \
926 .read = mwifiex_##name##_read, \
927 .open = simple_open, \
928};
929
930#define MWIFIEX_DFS_FILE_WRITE_OPS(name) \
931static const struct file_operations mwifiex_dfs_##name##_fops = { \
932 .write = mwifiex_##name##_write, \
933 .open = simple_open, \
934};
935
936
937MWIFIEX_DFS_FILE_READ_OPS(info);
938MWIFIEX_DFS_FILE_READ_OPS(debug);
939MWIFIEX_DFS_FILE_READ_OPS(getlog);
940MWIFIEX_DFS_FILE_OPS(regrdwr);
941MWIFIEX_DFS_FILE_OPS(rdeeprom);
942MWIFIEX_DFS_FILE_OPS(memrw);
943MWIFIEX_DFS_FILE_OPS(hscfg);
944MWIFIEX_DFS_FILE_OPS(histogram);
945MWIFIEX_DFS_FILE_OPS(debug_mask);
946MWIFIEX_DFS_FILE_OPS(timeshare_coex);
947MWIFIEX_DFS_FILE_WRITE_OPS(reset);
948MWIFIEX_DFS_FILE_OPS(verext);
949
950/*
951 * This function creates the debug FS directory structure and the files.
952 */
953void
954mwifiex_dev_debugfs_init(struct mwifiex_private *priv)
955{
956 if (!mwifiex_dfs_dir || !priv)
957 return;
958
959 priv->dfs_dev_dir = debugfs_create_dir(priv->netdev->name,
960 mwifiex_dfs_dir);
961
962 MWIFIEX_DFS_ADD_FILE(info);
963 MWIFIEX_DFS_ADD_FILE(debug);
964 MWIFIEX_DFS_ADD_FILE(getlog);
965 MWIFIEX_DFS_ADD_FILE(regrdwr);
966 MWIFIEX_DFS_ADD_FILE(rdeeprom);
967
968 MWIFIEX_DFS_ADD_FILE(memrw);
969 MWIFIEX_DFS_ADD_FILE(hscfg);
970 MWIFIEX_DFS_ADD_FILE(histogram);
971 MWIFIEX_DFS_ADD_FILE(debug_mask);
972 MWIFIEX_DFS_ADD_FILE(timeshare_coex);
973 MWIFIEX_DFS_ADD_FILE(reset);
974 MWIFIEX_DFS_ADD_FILE(verext);
975}
976
977/*
978 * This function removes the debug FS directory structure and the files.
979 */
980void
981mwifiex_dev_debugfs_remove(struct mwifiex_private *priv)
982{
983 if (!priv)
984 return;
985
986 debugfs_remove_recursive(priv->dfs_dev_dir);
987}
988
989/*
990 * This function creates the top level proc directory.
991 */
992void
993mwifiex_debugfs_init(void)
994{
995 if (!mwifiex_dfs_dir)
996 mwifiex_dfs_dir = debugfs_create_dir("mwifiex", NULL);
997}
998
999/*
1000 * This function removes the top level proc directory.
1001 */
1002void
1003mwifiex_debugfs_remove(void)
1004{
1005 debugfs_remove(mwifiex_dfs_dir);
1006}