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Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux...
[linux/fpc-iii.git] / drivers / net / wireless / ti / wlcore / debugfs.c
blob7f672f6879d046ee69982f2d38f5cbf19e2e5dc9
1 /*
2 * This file is part of wl1271
3 *
4 * Copyright (C) 2009 Nokia Corporation
5 *
6 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23
24 #include "debugfs.h"
25
26 #include <linux/skbuff.h>
27 #include <linux/slab.h>
28 #include <linux/module.h>
29
30 #include "wlcore.h"
31 #include "debug.h"
32 #include "acx.h"
33 #include "ps.h"
34 #include "io.h"
35 #include "tx.h"
36 #include "hw_ops.h"
37
38 /* ms */
39 #define WL1271_DEBUGFS_STATS_LIFETIME 1000
40
41 #define WLCORE_MAX_BLOCK_SIZE ((size_t)(4*PAGE_SIZE))
42
43 /* debugfs macros idea from mac80211 */
44 int wl1271_format_buffer(char __user *userbuf, size_t count,
45 loff_t *ppos, char *fmt, ...)
46 {
47 va_list args;
48 char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
49 int res;
50
51 va_start(args, fmt);
52 res = vscnprintf(buf, sizeof(buf), fmt, args);
53 va_end(args);
54
55 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
56 }
57 EXPORT_SYMBOL_GPL(wl1271_format_buffer);
58
59 void wl1271_debugfs_update_stats(struct wl1271 *wl)
60 {
61 int ret;
62
63 mutex_lock(&wl->mutex);
64
65 if (unlikely(wl->state != WLCORE_STATE_ON))
66 goto out;
67
68 ret = wl1271_ps_elp_wakeup(wl);
69 if (ret < 0)
70 goto out;
71
72 if (!wl->plt &&
73 time_after(jiffies, wl->stats.fw_stats_update +
74 msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) {
75 wl1271_acx_statistics(wl, wl->stats.fw_stats);
76 wl->stats.fw_stats_update = jiffies;
77 }
78
79 wl1271_ps_elp_sleep(wl);
80
81 out:
82 mutex_unlock(&wl->mutex);
83 }
84 EXPORT_SYMBOL_GPL(wl1271_debugfs_update_stats);
85
86 DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
87 DEBUGFS_READONLY_FILE(excessive_retries, "%u",
88 wl->stats.excessive_retries);
89
90 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
91 size_t count, loff_t *ppos)
92 {
93 struct wl1271 *wl = file->private_data;
94 u32 queue_len;
95 char buf[20];
96 int res;
97
98 queue_len = wl1271_tx_total_queue_count(wl);
99
100 res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
101 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
102 }
103
104 static const struct file_operations tx_queue_len_ops = {
105 .read = tx_queue_len_read,
106 .open = simple_open,
107 .llseek = default_llseek,
108 };
109
110 static void chip_op_handler(struct wl1271 *wl, unsigned long value,
111 void *arg)
112 {
113 int ret;
114 int (*chip_op) (struct wl1271 *wl);
115
116 if (!arg) {
117 wl1271_warning("debugfs chip_op_handler with no callback");
118 return;
119 }
120
121 ret = wl1271_ps_elp_wakeup(wl);
122 if (ret < 0)
123 return;
124
125 chip_op = arg;
126 chip_op(wl);
127
128 wl1271_ps_elp_sleep(wl);
129 }
130
131
132 static inline void no_write_handler(struct wl1271 *wl,
133 unsigned long value,
134 unsigned long param)
135 {
136 }
137
138 #define WL12XX_CONF_DEBUGFS(param, conf_sub_struct, \
139 min_val, max_val, write_handler_locked, \
140 write_handler_arg) \
141 static ssize_t param##_read(struct file *file, \
142 char __user *user_buf, \
143 size_t count, loff_t *ppos) \
144 { \
145 struct wl1271 *wl = file->private_data; \
146 return wl1271_format_buffer(user_buf, count, \
147 ppos, "%d\n", \
148 wl->conf.conf_sub_struct.param); \
149 } \
150 \
151 static ssize_t param##_write(struct file *file, \
152 const char __user *user_buf, \
153 size_t count, loff_t *ppos) \
154 { \
155 struct wl1271 *wl = file->private_data; \
156 unsigned long value; \
157 int ret; \
158 \
159 ret = kstrtoul_from_user(user_buf, count, 10, &value); \
160 if (ret < 0) { \
161 wl1271_warning("illegal value for " #param); \
162 return -EINVAL; \
163 } \
164 \
165 if (value < min_val || value > max_val) { \
166 wl1271_warning(#param " is not in valid range"); \
167 return -ERANGE; \
168 } \
169 \
170 mutex_lock(&wl->mutex); \
171 wl->conf.conf_sub_struct.param = value; \
172 \
173 write_handler_locked(wl, value, write_handler_arg); \
174 \
175 mutex_unlock(&wl->mutex); \
176 return count; \
177 } \
178 \
179 static const struct file_operations param##_ops = { \
180 .read = param##_read, \
181 .write = param##_write, \
182 .open = simple_open, \
183 .llseek = default_llseek, \
184 };
185
186 WL12XX_CONF_DEBUGFS(irq_pkt_threshold, rx, 0, 65535,
187 chip_op_handler, wl1271_acx_init_rx_interrupt)
188 WL12XX_CONF_DEBUGFS(irq_blk_threshold, rx, 0, 65535,
189 chip_op_handler, wl1271_acx_init_rx_interrupt)
190 WL12XX_CONF_DEBUGFS(irq_timeout, rx, 0, 100,
191 chip_op_handler, wl1271_acx_init_rx_interrupt)
192
193 static ssize_t gpio_power_read(struct file *file, char __user *user_buf,
194 size_t count, loff_t *ppos)
195 {
196 struct wl1271 *wl = file->private_data;
197 bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
198
199 int res;
200 char buf[10];
201
202 res = scnprintf(buf, sizeof(buf), "%d\n", state);
203
204 return simple_read_from_buffer(user_buf, count, ppos, buf, res);
205 }
206
207 static ssize_t gpio_power_write(struct file *file,
208 const char __user *user_buf,
209 size_t count, loff_t *ppos)
210 {
211 struct wl1271 *wl = file->private_data;
212 unsigned long value;
213 int ret;
214
215 ret = kstrtoul_from_user(user_buf, count, 10, &value);
216 if (ret < 0) {
217 wl1271_warning("illegal value in gpio_power");
218 return -EINVAL;
219 }
220
221 mutex_lock(&wl->mutex);
222
223 if (value)
224 wl1271_power_on(wl);
225 else
226 wl1271_power_off(wl);
227
228 mutex_unlock(&wl->mutex);
229 return count;
230 }
231
232 static const struct file_operations gpio_power_ops = {
233 .read = gpio_power_read,
234 .write = gpio_power_write,
235 .open = simple_open,
236 .llseek = default_llseek,
237 };
238
239 static ssize_t start_recovery_write(struct file *file,
240 const char __user *user_buf,
241 size_t count, loff_t *ppos)
242 {
243 struct wl1271 *wl = file->private_data;
244
245 mutex_lock(&wl->mutex);
246 wl12xx_queue_recovery_work(wl);
247 mutex_unlock(&wl->mutex);
248
249 return count;
250 }
251
252 static const struct file_operations start_recovery_ops = {
253 .write = start_recovery_write,
254 .open = simple_open,
255 .llseek = default_llseek,
256 };
257
258 static ssize_t dynamic_ps_timeout_read(struct file *file, char __user *user_buf,
259 size_t count, loff_t *ppos)
260 {
261 struct wl1271 *wl = file->private_data;
262
263 return wl1271_format_buffer(user_buf, count,
264 ppos, "%d\n",
265 wl->conf.conn.dynamic_ps_timeout);
266 }
267
268 static ssize_t dynamic_ps_timeout_write(struct file *file,
269 const char __user *user_buf,
270 size_t count, loff_t *ppos)
271 {
272 struct wl1271 *wl = file->private_data;
273 struct wl12xx_vif *wlvif;
274 unsigned long value;
275 int ret;
276
277 ret = kstrtoul_from_user(user_buf, count, 10, &value);
278 if (ret < 0) {
279 wl1271_warning("illegal value in dynamic_ps");
280 return -EINVAL;
281 }
282
283 if (value < 1 || value > 65535) {
284 wl1271_warning("dyanmic_ps_timeout is not in valid range");
285 return -ERANGE;
286 }
287
288 mutex_lock(&wl->mutex);
289
290 wl->conf.conn.dynamic_ps_timeout = value;
291
292 if (unlikely(wl->state != WLCORE_STATE_ON))
293 goto out;
294
295 ret = wl1271_ps_elp_wakeup(wl);
296 if (ret < 0)
297 goto out;
298
299 /* In case we're already in PSM, trigger it again to set new timeout
300 * immediately without waiting for re-association
301 */
302
303 wl12xx_for_each_wlvif_sta(wl, wlvif) {
304 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
305 wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE);
306 }
307
308 wl1271_ps_elp_sleep(wl);
309
310 out:
311 mutex_unlock(&wl->mutex);
312 return count;
313 }
314
315 static const struct file_operations dynamic_ps_timeout_ops = {
316 .read = dynamic_ps_timeout_read,
317 .write = dynamic_ps_timeout_write,
318 .open = simple_open,
319 .llseek = default_llseek,
320 };
321
322 static ssize_t forced_ps_read(struct file *file, char __user *user_buf,
323 size_t count, loff_t *ppos)
324 {
325 struct wl1271 *wl = file->private_data;
326
327 return wl1271_format_buffer(user_buf, count,
328 ppos, "%d\n",
329 wl->conf.conn.forced_ps);
330 }
331
332 static ssize_t forced_ps_write(struct file *file,
333 const char __user *user_buf,
334 size_t count, loff_t *ppos)
335 {
336 struct wl1271 *wl = file->private_data;
337 struct wl12xx_vif *wlvif;
338 unsigned long value;
339 int ret, ps_mode;
340
341 ret = kstrtoul_from_user(user_buf, count, 10, &value);
342 if (ret < 0) {
343 wl1271_warning("illegal value in forced_ps");
344 return -EINVAL;
345 }
346
347 if (value != 1 && value != 0) {
348 wl1271_warning("forced_ps should be either 0 or 1");
349 return -ERANGE;
350 }
351
352 mutex_lock(&wl->mutex);
353
354 if (wl->conf.conn.forced_ps == value)
355 goto out;
356
357 wl->conf.conn.forced_ps = value;
358
359 if (unlikely(wl->state != WLCORE_STATE_ON))
360 goto out;
361
362 ret = wl1271_ps_elp_wakeup(wl);
363 if (ret < 0)
364 goto out;
365
366 /* In case we're already in PSM, trigger it again to switch mode
367 * immediately without waiting for re-association
368 */
369
370 ps_mode = value ? STATION_POWER_SAVE_MODE : STATION_AUTO_PS_MODE;
371
372 wl12xx_for_each_wlvif_sta(wl, wlvif) {
373 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
374 wl1271_ps_set_mode(wl, wlvif, ps_mode);
375 }
376
377 wl1271_ps_elp_sleep(wl);
378
379 out:
380 mutex_unlock(&wl->mutex);
381 return count;
382 }
383
384 static const struct file_operations forced_ps_ops = {
385 .read = forced_ps_read,
386 .write = forced_ps_write,
387 .open = simple_open,
388 .llseek = default_llseek,
389 };
390
391 static ssize_t split_scan_timeout_read(struct file *file, char __user *user_buf,
392 size_t count, loff_t *ppos)
393 {
394 struct wl1271 *wl = file->private_data;
395
396 return wl1271_format_buffer(user_buf, count,
397 ppos, "%d\n",
398 wl->conf.scan.split_scan_timeout / 1000);
399 }
400
401 static ssize_t split_scan_timeout_write(struct file *file,
402 const char __user *user_buf,
403 size_t count, loff_t *ppos)
404 {
405 struct wl1271 *wl = file->private_data;
406 unsigned long value;
407 int ret;
408
409 ret = kstrtoul_from_user(user_buf, count, 10, &value);
410 if (ret < 0) {
411 wl1271_warning("illegal value in split_scan_timeout");
412 return -EINVAL;
413 }
414
415 if (value == 0)
416 wl1271_info("split scan will be disabled");
417
418 mutex_lock(&wl->mutex);
419
420 wl->conf.scan.split_scan_timeout = value * 1000;
421
422 mutex_unlock(&wl->mutex);
423 return count;
424 }
425
426 static const struct file_operations split_scan_timeout_ops = {
427 .read = split_scan_timeout_read,
428 .write = split_scan_timeout_write,
429 .open = simple_open,
430 .llseek = default_llseek,
431 };
432
433 static ssize_t driver_state_read(struct file *file, char __user *user_buf,
434 size_t count, loff_t *ppos)
435 {
436 struct wl1271 *wl = file->private_data;
437 int res = 0;
438 ssize_t ret;
439 char *buf;
440 struct wl12xx_vif *wlvif;
441
442 #define DRIVER_STATE_BUF_LEN 1024
443
444 buf = kmalloc(DRIVER_STATE_BUF_LEN, GFP_KERNEL);
445 if (!buf)
446 return -ENOMEM;
447
448 mutex_lock(&wl->mutex);
449
450 #define DRIVER_STATE_PRINT(x, fmt) \
451 (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\
452 #x " = " fmt "\n", wl->x))
453
454 #define DRIVER_STATE_PRINT_GENERIC(x, fmt, args...) \
455 (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\
456 #x " = " fmt "\n", args))
457
458 #define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld")
459 #define DRIVER_STATE_PRINT_INT(x) DRIVER_STATE_PRINT(x, "%d")
460 #define DRIVER_STATE_PRINT_STR(x) DRIVER_STATE_PRINT(x, "%s")
461 #define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx")
462 #define DRIVER_STATE_PRINT_HEX(x) DRIVER_STATE_PRINT(x, "0x%x")
463
464 wl12xx_for_each_wlvif_sta(wl, wlvif) {
465 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
466 continue;
467
468 DRIVER_STATE_PRINT_GENERIC(channel, "%d (%s)", wlvif->channel,
469 wlvif->p2p ? "P2P-CL" : "STA");
470 }
471
472 wl12xx_for_each_wlvif_ap(wl, wlvif)
473 DRIVER_STATE_PRINT_GENERIC(channel, "%d (%s)", wlvif->channel,
474 wlvif->p2p ? "P2P-GO" : "AP");
475
476 DRIVER_STATE_PRINT_INT(tx_blocks_available);
477 DRIVER_STATE_PRINT_INT(tx_allocated_blocks);
478 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]);
479 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]);
480 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]);
481 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]);
482 DRIVER_STATE_PRINT_INT(tx_frames_cnt);
483 DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]);
484 DRIVER_STATE_PRINT_INT(tx_queue_count[0]);
485 DRIVER_STATE_PRINT_INT(tx_queue_count[1]);
486 DRIVER_STATE_PRINT_INT(tx_queue_count[2]);
487 DRIVER_STATE_PRINT_INT(tx_queue_count[3]);
488 DRIVER_STATE_PRINT_INT(tx_packets_count);
489 DRIVER_STATE_PRINT_INT(tx_results_count);
490 DRIVER_STATE_PRINT_LHEX(flags);
491 DRIVER_STATE_PRINT_INT(tx_blocks_freed);
492 DRIVER_STATE_PRINT_INT(rx_counter);
493 DRIVER_STATE_PRINT_INT(state);
494 DRIVER_STATE_PRINT_INT(band);
495 DRIVER_STATE_PRINT_INT(power_level);
496 DRIVER_STATE_PRINT_INT(sg_enabled);
497 DRIVER_STATE_PRINT_INT(enable_11a);
498 DRIVER_STATE_PRINT_INT(noise);
499 DRIVER_STATE_PRINT_LHEX(ap_fw_ps_map);
500 DRIVER_STATE_PRINT_LHEX(ap_ps_map);
501 DRIVER_STATE_PRINT_HEX(quirks);
502 DRIVER_STATE_PRINT_HEX(irq);
503 /* TODO: ref_clock and tcxo_clock were moved to wl12xx priv */
504 DRIVER_STATE_PRINT_HEX(hw_pg_ver);
505 DRIVER_STATE_PRINT_HEX(irq_flags);
506 DRIVER_STATE_PRINT_HEX(chip.id);
507 DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
508 DRIVER_STATE_PRINT_STR(chip.phy_fw_ver_str);
509 DRIVER_STATE_PRINT_INT(recovery_count);
510
511 #undef DRIVER_STATE_PRINT_INT
512 #undef DRIVER_STATE_PRINT_LONG
513 #undef DRIVER_STATE_PRINT_HEX
514 #undef DRIVER_STATE_PRINT_LHEX
515 #undef DRIVER_STATE_PRINT_STR
516 #undef DRIVER_STATE_PRINT
517 #undef DRIVER_STATE_BUF_LEN
518
519 mutex_unlock(&wl->mutex);
520
521 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
522 kfree(buf);
523 return ret;
524 }
525
526 static const struct file_operations driver_state_ops = {
527 .read = driver_state_read,
528 .open = simple_open,
529 .llseek = default_llseek,
530 };
531
532 static ssize_t vifs_state_read(struct file *file, char __user *user_buf,
533 size_t count, loff_t *ppos)
534 {
535 struct wl1271 *wl = file->private_data;
536 struct wl12xx_vif *wlvif;
537 int ret, res = 0;
538 const int buf_size = 4096;
539 char *buf;
540 char tmp_buf[64];
541
542 buf = kzalloc(buf_size, GFP_KERNEL);
543 if (!buf)
544 return -ENOMEM;
545
546 mutex_lock(&wl->mutex);
547
548 #define VIF_STATE_PRINT(x, fmt) \
549 (res += scnprintf(buf + res, buf_size - res, \
550 #x " = " fmt "\n", wlvif->x))
551
552 #define VIF_STATE_PRINT_LONG(x) VIF_STATE_PRINT(x, "%ld")
553 #define VIF_STATE_PRINT_INT(x) VIF_STATE_PRINT(x, "%d")
554 #define VIF_STATE_PRINT_STR(x) VIF_STATE_PRINT(x, "%s")
555 #define VIF_STATE_PRINT_LHEX(x) VIF_STATE_PRINT(x, "0x%lx")
556 #define VIF_STATE_PRINT_LLHEX(x) VIF_STATE_PRINT(x, "0x%llx")
557 #define VIF_STATE_PRINT_HEX(x) VIF_STATE_PRINT(x, "0x%x")
558
559 #define VIF_STATE_PRINT_NSTR(x, len) \
560 do { \
561 memset(tmp_buf, 0, sizeof(tmp_buf)); \
562 memcpy(tmp_buf, wlvif->x, \
563 min_t(u8, len, sizeof(tmp_buf) - 1)); \
564 res += scnprintf(buf + res, buf_size - res, \
565 #x " = %s\n", tmp_buf); \
566 } while (0)
567
568 wl12xx_for_each_wlvif(wl, wlvif) {
569 VIF_STATE_PRINT_INT(role_id);
570 VIF_STATE_PRINT_INT(bss_type);
571 VIF_STATE_PRINT_LHEX(flags);
572 VIF_STATE_PRINT_INT(p2p);
573 VIF_STATE_PRINT_INT(dev_role_id);
574 VIF_STATE_PRINT_INT(dev_hlid);
575
576 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
577 wlvif->bss_type == BSS_TYPE_IBSS) {
578 VIF_STATE_PRINT_INT(sta.hlid);
579 VIF_STATE_PRINT_INT(sta.basic_rate_idx);
580 VIF_STATE_PRINT_INT(sta.ap_rate_idx);
581 VIF_STATE_PRINT_INT(sta.p2p_rate_idx);
582 VIF_STATE_PRINT_INT(sta.qos);
583 } else {
584 VIF_STATE_PRINT_INT(ap.global_hlid);
585 VIF_STATE_PRINT_INT(ap.bcast_hlid);
586 VIF_STATE_PRINT_LHEX(ap.sta_hlid_map[0]);
587 VIF_STATE_PRINT_INT(ap.mgmt_rate_idx);
588 VIF_STATE_PRINT_INT(ap.bcast_rate_idx);
589 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[0]);
590 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[1]);
591 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[2]);
592 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[3]);
593 }
594 VIF_STATE_PRINT_INT(last_tx_hlid);
595 VIF_STATE_PRINT_INT(tx_queue_count[0]);
596 VIF_STATE_PRINT_INT(tx_queue_count[1]);
597 VIF_STATE_PRINT_INT(tx_queue_count[2]);
598 VIF_STATE_PRINT_INT(tx_queue_count[3]);
599 VIF_STATE_PRINT_LHEX(links_map[0]);
600 VIF_STATE_PRINT_NSTR(ssid, wlvif->ssid_len);
601 VIF_STATE_PRINT_INT(band);
602 VIF_STATE_PRINT_INT(channel);
603 VIF_STATE_PRINT_HEX(bitrate_masks[0]);
604 VIF_STATE_PRINT_HEX(bitrate_masks[1]);
605 VIF_STATE_PRINT_HEX(basic_rate_set);
606 VIF_STATE_PRINT_HEX(basic_rate);
607 VIF_STATE_PRINT_HEX(rate_set);
608 VIF_STATE_PRINT_INT(beacon_int);
609 VIF_STATE_PRINT_INT(default_key);
610 VIF_STATE_PRINT_INT(aid);
611 VIF_STATE_PRINT_INT(psm_entry_retry);
612 VIF_STATE_PRINT_INT(power_level);
613 VIF_STATE_PRINT_INT(rssi_thold);
614 VIF_STATE_PRINT_INT(last_rssi_event);
615 VIF_STATE_PRINT_INT(ba_support);
616 VIF_STATE_PRINT_INT(ba_allowed);
617 VIF_STATE_PRINT_LLHEX(total_freed_pkts);
618 }
619
620 #undef VIF_STATE_PRINT_INT
621 #undef VIF_STATE_PRINT_LONG
622 #undef VIF_STATE_PRINT_HEX
623 #undef VIF_STATE_PRINT_LHEX
624 #undef VIF_STATE_PRINT_LLHEX
625 #undef VIF_STATE_PRINT_STR
626 #undef VIF_STATE_PRINT_NSTR
627 #undef VIF_STATE_PRINT
628
629 mutex_unlock(&wl->mutex);
630
631 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
632 kfree(buf);
633 return ret;
634 }
635
636 static const struct file_operations vifs_state_ops = {
637 .read = vifs_state_read,
638 .open = simple_open,
639 .llseek = default_llseek,
640 };
641
642 static ssize_t dtim_interval_read(struct file *file, char __user *user_buf,
643 size_t count, loff_t *ppos)
644 {
645 struct wl1271 *wl = file->private_data;
646 u8 value;
647
648 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
649 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
650 value = wl->conf.conn.listen_interval;
651 else
652 value = 0;
653
654 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
655 }
656
657 static ssize_t dtim_interval_write(struct file *file,
658 const char __user *user_buf,
659 size_t count, loff_t *ppos)
660 {
661 struct wl1271 *wl = file->private_data;
662 unsigned long value;
663 int ret;
664
665 ret = kstrtoul_from_user(user_buf, count, 10, &value);
666 if (ret < 0) {
667 wl1271_warning("illegal value for dtim_interval");
668 return -EINVAL;
669 }
670
671 if (value < 1 || value > 10) {
672 wl1271_warning("dtim value is not in valid range");
673 return -ERANGE;
674 }
675
676 mutex_lock(&wl->mutex);
677
678 wl->conf.conn.listen_interval = value;
679 /* for some reason there are different event types for 1 and >1 */
680 if (value == 1)
681 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
682 else
683 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
684
685 /*
686 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
687 * take effect on the next time we enter psm.
688 */
689 mutex_unlock(&wl->mutex);
690 return count;
691 }
692
693 static const struct file_operations dtim_interval_ops = {
694 .read = dtim_interval_read,
695 .write = dtim_interval_write,
696 .open = simple_open,
697 .llseek = default_llseek,
698 };
699
700
701
702 static ssize_t suspend_dtim_interval_read(struct file *file,
703 char __user *user_buf,
704 size_t count, loff_t *ppos)
705 {
706 struct wl1271 *wl = file->private_data;
707 u8 value;
708
709 if (wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
710 wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
711 value = wl->conf.conn.suspend_listen_interval;
712 else
713 value = 0;
714
715 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
716 }
717
718 static ssize_t suspend_dtim_interval_write(struct file *file,
719 const char __user *user_buf,
720 size_t count, loff_t *ppos)
721 {
722 struct wl1271 *wl = file->private_data;
723 unsigned long value;
724 int ret;
725
726 ret = kstrtoul_from_user(user_buf, count, 10, &value);
727 if (ret < 0) {
728 wl1271_warning("illegal value for suspend_dtim_interval");
729 return -EINVAL;
730 }
731
732 if (value < 1 || value > 10) {
733 wl1271_warning("suspend_dtim value is not in valid range");
734 return -ERANGE;
735 }
736
737 mutex_lock(&wl->mutex);
738
739 wl->conf.conn.suspend_listen_interval = value;
740 /* for some reason there are different event types for 1 and >1 */
741 if (value == 1)
742 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
743 else
744 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
745
746 mutex_unlock(&wl->mutex);
747 return count;
748 }
749
750
751 static const struct file_operations suspend_dtim_interval_ops = {
752 .read = suspend_dtim_interval_read,
753 .write = suspend_dtim_interval_write,
754 .open = simple_open,
755 .llseek = default_llseek,
756 };
757
758 static ssize_t beacon_interval_read(struct file *file, char __user *user_buf,
759 size_t count, loff_t *ppos)
760 {
761 struct wl1271 *wl = file->private_data;
762 u8 value;
763
764 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON ||
765 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS)
766 value = wl->conf.conn.listen_interval;
767 else
768 value = 0;
769
770 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
771 }
772
773 static ssize_t beacon_interval_write(struct file *file,
774 const char __user *user_buf,
775 size_t count, loff_t *ppos)
776 {
777 struct wl1271 *wl = file->private_data;
778 unsigned long value;
779 int ret;
780
781 ret = kstrtoul_from_user(user_buf, count, 10, &value);
782 if (ret < 0) {
783 wl1271_warning("illegal value for beacon_interval");
784 return -EINVAL;
785 }
786
787 if (value < 1 || value > 255) {
788 wl1271_warning("beacon interval value is not in valid range");
789 return -ERANGE;
790 }
791
792 mutex_lock(&wl->mutex);
793
794 wl->conf.conn.listen_interval = value;
795 /* for some reason there are different event types for 1 and >1 */
796 if (value == 1)
797 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON;
798 else
799 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS;
800
801 /*
802 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
803 * take effect on the next time we enter psm.
804 */
805 mutex_unlock(&wl->mutex);
806 return count;
807 }
808
809 static const struct file_operations beacon_interval_ops = {
810 .read = beacon_interval_read,
811 .write = beacon_interval_write,
812 .open = simple_open,
813 .llseek = default_llseek,
814 };
815
816 static ssize_t rx_streaming_interval_write(struct file *file,
817 const char __user *user_buf,
818 size_t count, loff_t *ppos)
819 {
820 struct wl1271 *wl = file->private_data;
821 struct wl12xx_vif *wlvif;
822 unsigned long value;
823 int ret;
824
825 ret = kstrtoul_from_user(user_buf, count, 10, &value);
826 if (ret < 0) {
827 wl1271_warning("illegal value in rx_streaming_interval!");
828 return -EINVAL;
829 }
830
831 /* valid values: 0, 10-100 */
832 if (value && (value < 10 || value > 100)) {
833 wl1271_warning("value is not in range!");
834 return -ERANGE;
835 }
836
837 mutex_lock(&wl->mutex);
838
839 wl->conf.rx_streaming.interval = value;
840
841 ret = wl1271_ps_elp_wakeup(wl);
842 if (ret < 0)
843 goto out;
844
845 wl12xx_for_each_wlvif_sta(wl, wlvif) {
846 wl1271_recalc_rx_streaming(wl, wlvif);
847 }
848
849 wl1271_ps_elp_sleep(wl);
850 out:
851 mutex_unlock(&wl->mutex);
852 return count;
853 }
854
855 static ssize_t rx_streaming_interval_read(struct file *file,
856 char __user *userbuf,
857 size_t count, loff_t *ppos)
858 {
859 struct wl1271 *wl = file->private_data;
860 return wl1271_format_buffer(userbuf, count, ppos,
861 "%d\n", wl->conf.rx_streaming.interval);
862 }
863
864 static const struct file_operations rx_streaming_interval_ops = {
865 .read = rx_streaming_interval_read,
866 .write = rx_streaming_interval_write,
867 .open = simple_open,
868 .llseek = default_llseek,
869 };
870
871 static ssize_t rx_streaming_always_write(struct file *file,
872 const char __user *user_buf,
873 size_t count, loff_t *ppos)
874 {
875 struct wl1271 *wl = file->private_data;
876 struct wl12xx_vif *wlvif;
877 unsigned long value;
878 int ret;
879
880 ret = kstrtoul_from_user(user_buf, count, 10, &value);
881 if (ret < 0) {
882 wl1271_warning("illegal value in rx_streaming_write!");
883 return -EINVAL;
884 }
885
886 /* valid values: 0, 10-100 */
887 if (!(value == 0 || value == 1)) {
888 wl1271_warning("value is not in valid!");
889 return -EINVAL;
890 }
891
892 mutex_lock(&wl->mutex);
893
894 wl->conf.rx_streaming.always = value;
895
896 ret = wl1271_ps_elp_wakeup(wl);
897 if (ret < 0)
898 goto out;
899
900 wl12xx_for_each_wlvif_sta(wl, wlvif) {
901 wl1271_recalc_rx_streaming(wl, wlvif);
902 }
903
904 wl1271_ps_elp_sleep(wl);
905 out:
906 mutex_unlock(&wl->mutex);
907 return count;
908 }
909
910 static ssize_t rx_streaming_always_read(struct file *file,
911 char __user *userbuf,
912 size_t count, loff_t *ppos)
913 {
914 struct wl1271 *wl = file->private_data;
915 return wl1271_format_buffer(userbuf, count, ppos,
916 "%d\n", wl->conf.rx_streaming.always);
917 }
918
919 static const struct file_operations rx_streaming_always_ops = {
920 .read = rx_streaming_always_read,
921 .write = rx_streaming_always_write,
922 .open = simple_open,
923 .llseek = default_llseek,
924 };
925
926 static ssize_t beacon_filtering_write(struct file *file,
927 const char __user *user_buf,
928 size_t count, loff_t *ppos)
929 {
930 struct wl1271 *wl = file->private_data;
931 struct wl12xx_vif *wlvif;
932 unsigned long value;
933 int ret;
934
935 ret = kstrtoul_from_user(user_buf, count, 0, &value);
936 if (ret < 0) {
937 wl1271_warning("illegal value for beacon_filtering!");
938 return -EINVAL;
939 }
940
941 mutex_lock(&wl->mutex);
942
943 ret = wl1271_ps_elp_wakeup(wl);
944 if (ret < 0)
945 goto out;
946
947 wl12xx_for_each_wlvif(wl, wlvif) {
948 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value);
949 }
950
951 wl1271_ps_elp_sleep(wl);
952 out:
953 mutex_unlock(&wl->mutex);
954 return count;
955 }
956
957 static const struct file_operations beacon_filtering_ops = {
958 .write = beacon_filtering_write,
959 .open = simple_open,
960 .llseek = default_llseek,
961 };
962
963 static ssize_t fw_stats_raw_read(struct file *file,
964 char __user *userbuf,
965 size_t count, loff_t *ppos)
966 {
967 struct wl1271 *wl = file->private_data;
968
969 wl1271_debugfs_update_stats(wl);
970
971 return simple_read_from_buffer(userbuf, count, ppos,
972 wl->stats.fw_stats,
973 wl->stats.fw_stats_len);
974 }
975
976 static const struct file_operations fw_stats_raw_ops = {
977 .read = fw_stats_raw_read,
978 .open = simple_open,
979 .llseek = default_llseek,
980 };
981
982 static ssize_t sleep_auth_read(struct file *file, char __user *user_buf,
983 size_t count, loff_t *ppos)
984 {
985 struct wl1271 *wl = file->private_data;
986
987 return wl1271_format_buffer(user_buf, count,
988 ppos, "%d\n",
989 wl->sleep_auth);
990 }
991
992 static ssize_t sleep_auth_write(struct file *file,
993 const char __user *user_buf,
994 size_t count, loff_t *ppos)
995 {
996 struct wl1271 *wl = file->private_data;
997 unsigned long value;
998 int ret;
999
1000 ret = kstrtoul_from_user(user_buf, count, 0, &value);
1001 if (ret < 0) {
1002 wl1271_warning("illegal value in sleep_auth");
1003 return -EINVAL;
1004 }
1005
1006 if (value > WL1271_PSM_MAX) {
1007 wl1271_warning("sleep_auth must be between 0 and %d",
1008 WL1271_PSM_MAX);
1009 return -ERANGE;
1010 }
1011
1012 mutex_lock(&wl->mutex);
1013
1014 wl->conf.conn.sta_sleep_auth = value;
1015
1016 if (unlikely(wl->state != WLCORE_STATE_ON)) {
1017 /* this will show up on "read" in case we are off */
1018 wl->sleep_auth = value;
1019 goto out;
1020 }
1021
1022 ret = wl1271_ps_elp_wakeup(wl);
1023 if (ret < 0)
1024 goto out;
1025
1026 ret = wl1271_acx_sleep_auth(wl, value);
1027 if (ret < 0)
1028 goto out_sleep;
1029
1030 out_sleep:
1031 wl1271_ps_elp_sleep(wl);
1032 out:
1033 mutex_unlock(&wl->mutex);
1034 return count;
1035 }
1036
1037 static const struct file_operations sleep_auth_ops = {
1038 .read = sleep_auth_read,
1039 .write = sleep_auth_write,
1040 .open = simple_open,
1041 .llseek = default_llseek,
1042 };
1043
1044 static ssize_t dev_mem_read(struct file *file,
1045 char __user *user_buf, size_t count,
1046 loff_t *ppos)
1047 {
1048 struct wl1271 *wl = file->private_data;
1049 struct wlcore_partition_set part, old_part;
1050 size_t bytes = count;
1051 int ret;
1052 char *buf;
1053
1054 /* only requests of dword-aligned size and offset are supported */
1055 if (bytes % 4)
1056 return -EINVAL;
1057
1058 if (*ppos % 4)
1059 return -EINVAL;
1060
1061 /* function should return in reasonable time */
1062 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE);
1063
1064 if (bytes == 0)
1065 return -EINVAL;
1066
1067 memset(&part, 0, sizeof(part));
1068 part.mem.start = *ppos;
1069 part.mem.size = bytes;
1070
1071 buf = kmalloc(bytes, GFP_KERNEL);
1072 if (!buf)
1073 return -ENOMEM;
1074
1075 mutex_lock(&wl->mutex);
1076
1077 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
1078 ret = -EFAULT;
1079 goto skip_read;
1080 }
1081
1082 /*
1083 * Don't fail if elp_wakeup returns an error, so the device's memory
1084 * could be read even if the FW crashed
1085 */
1086 wl1271_ps_elp_wakeup(wl);
1087
1088 /* store current partition and switch partition */
1089 memcpy(&old_part, &wl->curr_part, sizeof(old_part));
1090 ret = wlcore_set_partition(wl, &part);
1091 if (ret < 0)
1092 goto part_err;
1093
1094 ret = wlcore_raw_read(wl, 0, buf, bytes, false);
1095 if (ret < 0)
1096 goto read_err;
1097
1098 read_err:
1099 /* recover partition */
1100 ret = wlcore_set_partition(wl, &old_part);
1101 if (ret < 0)
1102 goto part_err;
1103
1104 part_err:
1105 wl1271_ps_elp_sleep(wl);
1106
1107 skip_read:
1108 mutex_unlock(&wl->mutex);
1109
1110 if (ret == 0) {
1111 ret = copy_to_user(user_buf, buf, bytes);
1112 if (ret < bytes) {
1113 bytes -= ret;
1114 *ppos += bytes;
1115 ret = 0;
1116 } else {
1117 ret = -EFAULT;
1118 }
1119 }
1120
1121 kfree(buf);
1122
1123 return ((ret == 0) ? bytes : ret);
1124 }
1125
1126 static ssize_t dev_mem_write(struct file *file, const char __user *user_buf,
1127 size_t count, loff_t *ppos)
1128 {
1129 struct wl1271 *wl = file->private_data;
1130 struct wlcore_partition_set part, old_part;
1131 size_t bytes = count;
1132 int ret;
1133 char *buf;
1134
1135 /* only requests of dword-aligned size and offset are supported */
1136 if (bytes % 4)
1137 return -EINVAL;
1138
1139 if (*ppos % 4)
1140 return -EINVAL;
1141
1142 /* function should return in reasonable time */
1143 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE);
1144
1145 if (bytes == 0)
1146 return -EINVAL;
1147
1148 memset(&part, 0, sizeof(part));
1149 part.mem.start = *ppos;
1150 part.mem.size = bytes;
1151
1152 buf = kmalloc(bytes, GFP_KERNEL);
1153 if (!buf)
1154 return -ENOMEM;
1155
1156 ret = copy_from_user(buf, user_buf, bytes);
1157 if (ret) {
1158 ret = -EFAULT;
1159 goto err_out;
1160 }
1161
1162 mutex_lock(&wl->mutex);
1163
1164 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
1165 ret = -EFAULT;
1166 goto skip_write;
1167 }
1168
1169 /*
1170 * Don't fail if elp_wakeup returns an error, so the device's memory
1171 * could be read even if the FW crashed
1172 */
1173 wl1271_ps_elp_wakeup(wl);
1174
1175 /* store current partition and switch partition */
1176 memcpy(&old_part, &wl->curr_part, sizeof(old_part));
1177 ret = wlcore_set_partition(wl, &part);
1178 if (ret < 0)
1179 goto part_err;
1180
1181 ret = wlcore_raw_write(wl, 0, buf, bytes, false);
1182 if (ret < 0)
1183 goto write_err;
1184
1185 write_err:
1186 /* recover partition */
1187 ret = wlcore_set_partition(wl, &old_part);
1188 if (ret < 0)
1189 goto part_err;
1190
1191 part_err:
1192 wl1271_ps_elp_sleep(wl);
1193
1194 skip_write:
1195 mutex_unlock(&wl->mutex);
1196
1197 if (ret == 0)
1198 *ppos += bytes;
1199
1200 err_out:
1201 kfree(buf);
1202
1203 return ((ret == 0) ? bytes : ret);
1204 }
1205
1206 static loff_t dev_mem_seek(struct file *file, loff_t offset, int orig)
1207 {
1208 /* only requests of dword-aligned size and offset are supported */
1209 if (offset % 4)
1210 return -EINVAL;
1211
1212 return no_seek_end_llseek(file, offset, orig);
1213 }
1214
1215 static const struct file_operations dev_mem_ops = {
1216 .open = simple_open,
1217 .read = dev_mem_read,
1218 .write = dev_mem_write,
1219 .llseek = dev_mem_seek,
1220 };
1221
1222 static ssize_t fw_logger_read(struct file *file, char __user *user_buf,
1223 size_t count, loff_t *ppos)
1224 {
1225 struct wl1271 *wl = file->private_data;
1226
1227 return wl1271_format_buffer(user_buf, count,
1228 ppos, "%d\n",
1229 wl->conf.fwlog.output);
1230 }
1231
1232 static ssize_t fw_logger_write(struct file *file,
1233 const char __user *user_buf,
1234 size_t count, loff_t *ppos)
1235 {
1236 struct wl1271 *wl = file->private_data;
1237 unsigned long value;
1238 int ret;
1239
1240 ret = kstrtoul_from_user(user_buf, count, 0, &value);
1241 if (ret < 0) {
1242 wl1271_warning("illegal value in fw_logger");
1243 return -EINVAL;
1244 }
1245
1246 if ((value > 2) || (value == 0)) {
1247 wl1271_warning("fw_logger value must be 1-UART 2-SDIO");
1248 return -ERANGE;
1249 }
1250
1251 if (wl->conf.fwlog.output == 0) {
1252 wl1271_warning("iligal opperation - fw logger disabled by default, please change mode via wlconf");
1253 return -EINVAL;
1254 }
1255
1256 mutex_lock(&wl->mutex);
1257 ret = wl1271_ps_elp_wakeup(wl);
1258 if (ret < 0) {
1259 count = ret;
1260 goto out;
1261 }
1262
1263 wl->conf.fwlog.output = value;
1264
1265 ret = wl12xx_cmd_config_fwlog(wl);
1266
1267 wl1271_ps_elp_sleep(wl);
1268
1269 out:
1270 mutex_unlock(&wl->mutex);
1271 return count;
1272 }
1273
1274 static const struct file_operations fw_logger_ops = {
1275 .open = simple_open,
1276 .read = fw_logger_read,
1277 .write = fw_logger_write,
1278 .llseek = default_llseek,
1279 };
1280
1281 static int wl1271_debugfs_add_files(struct wl1271 *wl,
1282 struct dentry *rootdir)
1283 {
1284 int ret = 0;
1285 struct dentry *entry, *streaming;
1286
1287 DEBUGFS_ADD(tx_queue_len, rootdir);
1288 DEBUGFS_ADD(retry_count, rootdir);
1289 DEBUGFS_ADD(excessive_retries, rootdir);
1290
1291 DEBUGFS_ADD(gpio_power, rootdir);
1292 DEBUGFS_ADD(start_recovery, rootdir);
1293 DEBUGFS_ADD(driver_state, rootdir);
1294 DEBUGFS_ADD(vifs_state, rootdir);
1295 DEBUGFS_ADD(dtim_interval, rootdir);
1296 DEBUGFS_ADD(suspend_dtim_interval, rootdir);
1297 DEBUGFS_ADD(beacon_interval, rootdir);
1298 DEBUGFS_ADD(beacon_filtering, rootdir);
1299 DEBUGFS_ADD(dynamic_ps_timeout, rootdir);
1300 DEBUGFS_ADD(forced_ps, rootdir);
1301 DEBUGFS_ADD(split_scan_timeout, rootdir);
1302 DEBUGFS_ADD(irq_pkt_threshold, rootdir);
1303 DEBUGFS_ADD(irq_blk_threshold, rootdir);
1304 DEBUGFS_ADD(irq_timeout, rootdir);
1305 DEBUGFS_ADD(fw_stats_raw, rootdir);
1306 DEBUGFS_ADD(sleep_auth, rootdir);
1307 DEBUGFS_ADD(fw_logger, rootdir);
1308
1309 streaming = debugfs_create_dir("rx_streaming", rootdir);
1310 if (!streaming || IS_ERR(streaming))
1311 goto err;
1312
1313 DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming);
1314 DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming);
1315
1316 DEBUGFS_ADD_PREFIX(dev, mem, rootdir);
1317
1318 return 0;
1319
1320 err:
1321 if (IS_ERR(entry))
1322 ret = PTR_ERR(entry);
1323 else
1324 ret = -ENOMEM;
1325
1326 return ret;
1327 }
1328
1329 void wl1271_debugfs_reset(struct wl1271 *wl)
1330 {
1331 if (!wl->stats.fw_stats)
1332 return;
1333
1334 memset(wl->stats.fw_stats, 0, wl->stats.fw_stats_len);
1335 wl->stats.retry_count = 0;
1336 wl->stats.excessive_retries = 0;
1337 }
1338
1339 int wl1271_debugfs_init(struct wl1271 *wl)
1340 {
1341 int ret;
1342 struct dentry *rootdir;
1343
1344 rootdir = debugfs_create_dir(KBUILD_MODNAME,
1345 wl->hw->wiphy->debugfsdir);
1346
1347 if (IS_ERR(rootdir)) {
1348 ret = PTR_ERR(rootdir);
1349 goto out;
1350 }
1351
1352 wl->stats.fw_stats = kzalloc(wl->stats.fw_stats_len, GFP_KERNEL);
1353 if (!wl->stats.fw_stats) {
1354 ret = -ENOMEM;
1355 goto out_remove;
1356 }
1357
1358 wl->stats.fw_stats_update = jiffies;
1359
1360 ret = wl1271_debugfs_add_files(wl, rootdir);
1361 if (ret < 0)
1362 goto out_exit;
1363
1364 ret = wlcore_debugfs_init(wl, rootdir);
1365 if (ret < 0)
1366 goto out_exit;
1367
1368 goto out;
1369
1370 out_exit:
1371 wl1271_debugfs_exit(wl);
1372
1373 out_remove:
1374 debugfs_remove_recursive(rootdir);
1375
1376 out:
1377 return ret;
1378 }
1379
1380 void wl1271_debugfs_exit(struct wl1271 *wl)
1381 {
1382 kfree(wl->stats.fw_stats);
1383 wl->stats.fw_stats = NULL;
1384 }
Linux with added FPC-III support