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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 */
44int 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}
57EXPORT_SYMBOL_GPL(wl1271_format_buffer);
58
59void 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
81out:
82 mutex_unlock(&wl->mutex);
83}
84EXPORT_SYMBOL_GPL(wl1271_debugfs_update_stats);
85
86DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
87DEBUGFS_READONLY_FILE(excessive_retries, "%u",
88 wl->stats.excessive_retries);
89
90static 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
104static const struct file_operations tx_queue_len_ops = {
105 .read = tx_queue_len_read,
106 .open = simple_open,
107 .llseek = default_llseek,
108};
109
110static 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
132static 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
186WL12XX_CONF_DEBUGFS(irq_pkt_threshold, rx, 0, 65535,
187 chip_op_handler, wl1271_acx_init_rx_interrupt)
188WL12XX_CONF_DEBUGFS(irq_blk_threshold, rx, 0, 65535,
189 chip_op_handler, wl1271_acx_init_rx_interrupt)
190WL12XX_CONF_DEBUGFS(irq_timeout, rx, 0, 100,
191 chip_op_handler, wl1271_acx_init_rx_interrupt)
192
193static 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
207static 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
232static 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
239static 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
252static const struct file_operations start_recovery_ops = {
253 .write = start_recovery_write,
254 .open = simple_open,
255 .llseek = default_llseek,
256};
257
258static 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
268static 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
310out:
311 mutex_unlock(&wl->mutex);
312 return count;
313}
314
315static 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
322static 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
332static 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
379out:
380 mutex_unlock(&wl->mutex);
381 return count;
382}
383
384static 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
391static 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
401static 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
426static 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
433static 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
526static const struct file_operations driver_state_ops = {
527 .read = driver_state_read,
528 .open = simple_open,
529 .llseek = default_llseek,
530};
531
532static 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
636static const struct file_operations vifs_state_ops = {
637 .read = vifs_state_read,
638 .open = simple_open,
639 .llseek = default_llseek,
640};
641
642static 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
657static 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
693static 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
702static 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
718static 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
751static 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
758static 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
773static 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
809static 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
816static 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);
850out:
851 mutex_unlock(&wl->mutex);
852 return count;
853}
854
855static 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
864static 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
871static 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);
905out:
906 mutex_unlock(&wl->mutex);
907 return count;
908}
909
910static 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
919static 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
926static 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);
952out:
953 mutex_unlock(&wl->mutex);
954 return count;
955}
956
957static const struct file_operations beacon_filtering_ops = {
958 .write = beacon_filtering_write,
959 .open = simple_open,
960 .llseek = default_llseek,
961};
962
963static 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
976static const struct file_operations fw_stats_raw_ops = {
977 .read = fw_stats_raw_read,
978 .open = simple_open,
979 .llseek = default_llseek,
980};
981
982static 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
992static 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
1030out_sleep:
1031 wl1271_ps_elp_sleep(wl);
1032out:
1033 mutex_unlock(&wl->mutex);
1034 return count;
1035}
1036
1037static 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
1044static 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
1098read_err:
1099 /* recover partition */
1100 ret = wlcore_set_partition(wl, &old_part);
1101 if (ret < 0)
1102 goto part_err;
1103
1104part_err:
1105 wl1271_ps_elp_sleep(wl);
1106
1107skip_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
1126static 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
1185write_err:
1186 /* recover partition */
1187 ret = wlcore_set_partition(wl, &old_part);
1188 if (ret < 0)
1189 goto part_err;
1190
1191part_err:
1192 wl1271_ps_elp_sleep(wl);
1193
1194skip_write:
1195 mutex_unlock(&wl->mutex);
1196
1197 if (ret == 0)
1198 *ppos += bytes;
1199
1200err_out:
1201 kfree(buf);
1202
1203 return ((ret == 0) ? bytes : ret);
1204}
1205
1206static 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
1215static 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
1222static 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
1232static 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
1269out:
1270 mutex_unlock(&wl->mutex);
1271 return count;
1272}
1273
1274static 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
1281static 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
1320err:
1321 if (IS_ERR(entry))
1322 ret = PTR_ERR(entry);
1323 else
1324 ret = -ENOMEM;
1325
1326 return ret;
1327}
1328
1329void 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
1339int 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
1370out_exit:
1371 wl1271_debugfs_exit(wl);
1372
1373out_remove:
1374 debugfs_remove_recursive(rootdir);
1375
1376out:
1377 return ret;
1378}
1379
1380void wl1271_debugfs_exit(struct wl1271 *wl)
1381{
1382 kfree(wl->stats.fw_stats);
1383 wl->stats.fw_stats = NULL;
1384}
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
29#include "wlcore.h"
30#include "debug.h"
31#include "acx.h"
32#include "ps.h"
33#include "io.h"
34#include "tx.h"
35
36/* ms */
37#define WL1271_DEBUGFS_STATS_LIFETIME 1000
38
39/* debugfs macros idea from mac80211 */
40#define DEBUGFS_FORMAT_BUFFER_SIZE 100
41static int wl1271_format_buffer(char __user *userbuf, size_t count,
42 loff_t *ppos, char *fmt, ...)
43{
44 va_list args;
45 char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
46 int res;
47
48 va_start(args, fmt);
49 res = vscnprintf(buf, sizeof(buf), fmt, args);
50 va_end(args);
51
52 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
53}
54
55#define DEBUGFS_READONLY_FILE(name, fmt, value...) \
56static ssize_t name## _read(struct file *file, char __user *userbuf, \
57 size_t count, loff_t *ppos) \
58{ \
59 struct wl1271 *wl = file->private_data; \
60 return wl1271_format_buffer(userbuf, count, ppos, \
61 fmt "\n", ##value); \
62} \
63 \
64static const struct file_operations name## _ops = { \
65 .read = name## _read, \
66 .open = simple_open, \
67 .llseek = generic_file_llseek, \
68};
69
70#define DEBUGFS_ADD(name, parent) \
71 entry = debugfs_create_file(#name, 0400, parent, \
72 wl, &name## _ops); \
73 if (!entry || IS_ERR(entry)) \
74 goto err; \
75
76#define DEBUGFS_ADD_PREFIX(prefix, name, parent) \
77 do { \
78 entry = debugfs_create_file(#name, 0400, parent, \
79 wl, &prefix## _## name## _ops); \
80 if (!entry || IS_ERR(entry)) \
81 goto err; \
82 } while (0);
83
84#define DEBUGFS_FWSTATS_FILE(sub, name, fmt) \
85static ssize_t sub## _ ##name## _read(struct file *file, \
86 char __user *userbuf, \
87 size_t count, loff_t *ppos) \
88{ \
89 struct wl1271 *wl = file->private_data; \
90 \
91 wl1271_debugfs_update_stats(wl); \
92 \
93 return wl1271_format_buffer(userbuf, count, ppos, fmt "\n", \
94 wl->stats.fw_stats->sub.name); \
95} \
96 \
97static const struct file_operations sub## _ ##name## _ops = { \
98 .read = sub## _ ##name## _read, \
99 .open = simple_open, \
100 .llseek = generic_file_llseek, \
101};
102
103#define DEBUGFS_FWSTATS_ADD(sub, name) \
104 DEBUGFS_ADD(sub## _ ##name, stats)
105
106static void wl1271_debugfs_update_stats(struct wl1271 *wl)
107{
108 int ret;
109
110 mutex_lock(&wl->mutex);
111
112 ret = wl1271_ps_elp_wakeup(wl);
113 if (ret < 0)
114 goto out;
115
116 if (wl->state == WL1271_STATE_ON && !wl->plt &&
117 time_after(jiffies, wl->stats.fw_stats_update +
118 msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) {
119 wl1271_acx_statistics(wl, wl->stats.fw_stats);
120 wl->stats.fw_stats_update = jiffies;
121 }
122
123 wl1271_ps_elp_sleep(wl);
124
125out:
126 mutex_unlock(&wl->mutex);
127}
128
129DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, "%u");
130
131DEBUGFS_FWSTATS_FILE(rx, out_of_mem, "%u");
132DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, "%u");
133DEBUGFS_FWSTATS_FILE(rx, hw_stuck, "%u");
134DEBUGFS_FWSTATS_FILE(rx, dropped, "%u");
135DEBUGFS_FWSTATS_FILE(rx, fcs_err, "%u");
136DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, "%u");
137DEBUGFS_FWSTATS_FILE(rx, path_reset, "%u");
138DEBUGFS_FWSTATS_FILE(rx, reset_counter, "%u");
139
140DEBUGFS_FWSTATS_FILE(dma, rx_requested, "%u");
141DEBUGFS_FWSTATS_FILE(dma, rx_errors, "%u");
142DEBUGFS_FWSTATS_FILE(dma, tx_requested, "%u");
143DEBUGFS_FWSTATS_FILE(dma, tx_errors, "%u");
144
145DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, "%u");
146DEBUGFS_FWSTATS_FILE(isr, fiqs, "%u");
147DEBUGFS_FWSTATS_FILE(isr, rx_headers, "%u");
148DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, "%u");
149DEBUGFS_FWSTATS_FILE(isr, rx_rdys, "%u");
150DEBUGFS_FWSTATS_FILE(isr, irqs, "%u");
151DEBUGFS_FWSTATS_FILE(isr, tx_procs, "%u");
152DEBUGFS_FWSTATS_FILE(isr, decrypt_done, "%u");
153DEBUGFS_FWSTATS_FILE(isr, dma0_done, "%u");
154DEBUGFS_FWSTATS_FILE(isr, dma1_done, "%u");
155DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, "%u");
156DEBUGFS_FWSTATS_FILE(isr, commands, "%u");
157DEBUGFS_FWSTATS_FILE(isr, rx_procs, "%u");
158DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, "%u");
159DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, "%u");
160DEBUGFS_FWSTATS_FILE(isr, pci_pm, "%u");
161DEBUGFS_FWSTATS_FILE(isr, wakeups, "%u");
162DEBUGFS_FWSTATS_FILE(isr, low_rssi, "%u");
163
164DEBUGFS_FWSTATS_FILE(wep, addr_key_count, "%u");
165DEBUGFS_FWSTATS_FILE(wep, default_key_count, "%u");
166/* skipping wep.reserved */
167DEBUGFS_FWSTATS_FILE(wep, key_not_found, "%u");
168DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, "%u");
169DEBUGFS_FWSTATS_FILE(wep, packets, "%u");
170DEBUGFS_FWSTATS_FILE(wep, interrupt, "%u");
171
172DEBUGFS_FWSTATS_FILE(pwr, ps_enter, "%u");
173DEBUGFS_FWSTATS_FILE(pwr, elp_enter, "%u");
174DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, "%u");
175DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, "%u");
176DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, "%u");
177DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, "%u");
178DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, "%u");
179DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, "%u");
180DEBUGFS_FWSTATS_FILE(pwr, power_save_off, "%u");
181DEBUGFS_FWSTATS_FILE(pwr, enable_ps, "%u");
182DEBUGFS_FWSTATS_FILE(pwr, disable_ps, "%u");
183DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, "%u");
184/* skipping cont_miss_bcns_spread for now */
185DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, "%u");
186
187DEBUGFS_FWSTATS_FILE(mic, rx_pkts, "%u");
188DEBUGFS_FWSTATS_FILE(mic, calc_failure, "%u");
189
190DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, "%u");
191DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, "%u");
192DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, "%u");
193DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, "%u");
194DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, "%u");
195DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, "%u");
196
197DEBUGFS_FWSTATS_FILE(event, heart_beat, "%u");
198DEBUGFS_FWSTATS_FILE(event, calibration, "%u");
199DEBUGFS_FWSTATS_FILE(event, rx_mismatch, "%u");
200DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, "%u");
201DEBUGFS_FWSTATS_FILE(event, rx_pool, "%u");
202DEBUGFS_FWSTATS_FILE(event, oom_late, "%u");
203DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, "%u");
204DEBUGFS_FWSTATS_FILE(event, tx_stuck, "%u");
205
206DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, "%u");
207DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, "%u");
208DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, "%u");
209DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, "%u");
210DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, "%u");
211DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, "%u");
212DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, "%u");
213
214DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, "%u");
215DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, "%u");
216DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data, "%u");
217DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, "%u");
218DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, "%u");
219
220DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
221DEBUGFS_READONLY_FILE(excessive_retries, "%u",
222 wl->stats.excessive_retries);
223
224static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
225 size_t count, loff_t *ppos)
226{
227 struct wl1271 *wl = file->private_data;
228 u32 queue_len;
229 char buf[20];
230 int res;
231
232 queue_len = wl1271_tx_total_queue_count(wl);
233
234 res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
235 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
236}
237
238static const struct file_operations tx_queue_len_ops = {
239 .read = tx_queue_len_read,
240 .open = simple_open,
241 .llseek = default_llseek,
242};
243
244static ssize_t gpio_power_read(struct file *file, char __user *user_buf,
245 size_t count, loff_t *ppos)
246{
247 struct wl1271 *wl = file->private_data;
248 bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
249
250 int res;
251 char buf[10];
252
253 res = scnprintf(buf, sizeof(buf), "%d\n", state);
254
255 return simple_read_from_buffer(user_buf, count, ppos, buf, res);
256}
257
258static ssize_t gpio_power_write(struct file *file,
259 const char __user *user_buf,
260 size_t count, loff_t *ppos)
261{
262 struct wl1271 *wl = file->private_data;
263 unsigned long value;
264 int ret;
265
266 ret = kstrtoul_from_user(user_buf, count, 10, &value);
267 if (ret < 0) {
268 wl1271_warning("illegal value in gpio_power");
269 return -EINVAL;
270 }
271
272 mutex_lock(&wl->mutex);
273
274 if (value)
275 wl1271_power_on(wl);
276 else
277 wl1271_power_off(wl);
278
279 mutex_unlock(&wl->mutex);
280 return count;
281}
282
283static const struct file_operations gpio_power_ops = {
284 .read = gpio_power_read,
285 .write = gpio_power_write,
286 .open = simple_open,
287 .llseek = default_llseek,
288};
289
290static ssize_t start_recovery_write(struct file *file,
291 const char __user *user_buf,
292 size_t count, loff_t *ppos)
293{
294 struct wl1271 *wl = file->private_data;
295
296 mutex_lock(&wl->mutex);
297 wl12xx_queue_recovery_work(wl);
298 mutex_unlock(&wl->mutex);
299
300 return count;
301}
302
303static const struct file_operations start_recovery_ops = {
304 .write = start_recovery_write,
305 .open = simple_open,
306 .llseek = default_llseek,
307};
308
309static ssize_t dynamic_ps_timeout_read(struct file *file, char __user *user_buf,
310 size_t count, loff_t *ppos)
311{
312 struct wl1271 *wl = file->private_data;
313
314 return wl1271_format_buffer(user_buf, count,
315 ppos, "%d\n",
316 wl->conf.conn.dynamic_ps_timeout);
317}
318
319static ssize_t dynamic_ps_timeout_write(struct file *file,
320 const char __user *user_buf,
321 size_t count, loff_t *ppos)
322{
323 struct wl1271 *wl = file->private_data;
324 struct wl12xx_vif *wlvif;
325 unsigned long value;
326 int ret;
327
328 ret = kstrtoul_from_user(user_buf, count, 10, &value);
329 if (ret < 0) {
330 wl1271_warning("illegal value in dynamic_ps");
331 return -EINVAL;
332 }
333
334 if (value < 1 || value > 65535) {
335 wl1271_warning("dyanmic_ps_timeout is not in valid range");
336 return -ERANGE;
337 }
338
339 mutex_lock(&wl->mutex);
340
341 wl->conf.conn.dynamic_ps_timeout = value;
342
343 if (wl->state == WL1271_STATE_OFF)
344 goto out;
345
346 ret = wl1271_ps_elp_wakeup(wl);
347 if (ret < 0)
348 goto out;
349
350 /* In case we're already in PSM, trigger it again to set new timeout
351 * immediately without waiting for re-association
352 */
353
354 wl12xx_for_each_wlvif_sta(wl, wlvif) {
355 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
356 wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE);
357 }
358
359 wl1271_ps_elp_sleep(wl);
360
361out:
362 mutex_unlock(&wl->mutex);
363 return count;
364}
365
366static const struct file_operations dynamic_ps_timeout_ops = {
367 .read = dynamic_ps_timeout_read,
368 .write = dynamic_ps_timeout_write,
369 .open = simple_open,
370 .llseek = default_llseek,
371};
372
373static ssize_t forced_ps_read(struct file *file, char __user *user_buf,
374 size_t count, loff_t *ppos)
375{
376 struct wl1271 *wl = file->private_data;
377
378 return wl1271_format_buffer(user_buf, count,
379 ppos, "%d\n",
380 wl->conf.conn.forced_ps);
381}
382
383static ssize_t forced_ps_write(struct file *file,
384 const char __user *user_buf,
385 size_t count, loff_t *ppos)
386{
387 struct wl1271 *wl = file->private_data;
388 struct wl12xx_vif *wlvif;
389 unsigned long value;
390 int ret, ps_mode;
391
392 ret = kstrtoul_from_user(user_buf, count, 10, &value);
393 if (ret < 0) {
394 wl1271_warning("illegal value in forced_ps");
395 return -EINVAL;
396 }
397
398 if (value != 1 && value != 0) {
399 wl1271_warning("forced_ps should be either 0 or 1");
400 return -ERANGE;
401 }
402
403 mutex_lock(&wl->mutex);
404
405 if (wl->conf.conn.forced_ps == value)
406 goto out;
407
408 wl->conf.conn.forced_ps = value;
409
410 if (wl->state == WL1271_STATE_OFF)
411 goto out;
412
413 ret = wl1271_ps_elp_wakeup(wl);
414 if (ret < 0)
415 goto out;
416
417 /* In case we're already in PSM, trigger it again to switch mode
418 * immediately without waiting for re-association
419 */
420
421 ps_mode = value ? STATION_POWER_SAVE_MODE : STATION_AUTO_PS_MODE;
422
423 wl12xx_for_each_wlvif_sta(wl, wlvif) {
424 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
425 wl1271_ps_set_mode(wl, wlvif, ps_mode);
426 }
427
428 wl1271_ps_elp_sleep(wl);
429
430out:
431 mutex_unlock(&wl->mutex);
432 return count;
433}
434
435static const struct file_operations forced_ps_ops = {
436 .read = forced_ps_read,
437 .write = forced_ps_write,
438 .open = simple_open,
439 .llseek = default_llseek,
440};
441
442static ssize_t split_scan_timeout_read(struct file *file, char __user *user_buf,
443 size_t count, loff_t *ppos)
444{
445 struct wl1271 *wl = file->private_data;
446
447 return wl1271_format_buffer(user_buf, count,
448 ppos, "%d\n",
449 wl->conf.scan.split_scan_timeout / 1000);
450}
451
452static ssize_t split_scan_timeout_write(struct file *file,
453 const char __user *user_buf,
454 size_t count, loff_t *ppos)
455{
456 struct wl1271 *wl = file->private_data;
457 unsigned long value;
458 int ret;
459
460 ret = kstrtoul_from_user(user_buf, count, 10, &value);
461 if (ret < 0) {
462 wl1271_warning("illegal value in split_scan_timeout");
463 return -EINVAL;
464 }
465
466 if (value == 0)
467 wl1271_info("split scan will be disabled");
468
469 mutex_lock(&wl->mutex);
470
471 wl->conf.scan.split_scan_timeout = value * 1000;
472
473 mutex_unlock(&wl->mutex);
474 return count;
475}
476
477static const struct file_operations split_scan_timeout_ops = {
478 .read = split_scan_timeout_read,
479 .write = split_scan_timeout_write,
480 .open = simple_open,
481 .llseek = default_llseek,
482};
483
484static ssize_t driver_state_read(struct file *file, char __user *user_buf,
485 size_t count, loff_t *ppos)
486{
487 struct wl1271 *wl = file->private_data;
488 int res = 0;
489 ssize_t ret;
490 char *buf;
491
492#define DRIVER_STATE_BUF_LEN 1024
493
494 buf = kmalloc(DRIVER_STATE_BUF_LEN, GFP_KERNEL);
495 if (!buf)
496 return -ENOMEM;
497
498 mutex_lock(&wl->mutex);
499
500#define DRIVER_STATE_PRINT(x, fmt) \
501 (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\
502 #x " = " fmt "\n", wl->x))
503
504#define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld")
505#define DRIVER_STATE_PRINT_INT(x) DRIVER_STATE_PRINT(x, "%d")
506#define DRIVER_STATE_PRINT_STR(x) DRIVER_STATE_PRINT(x, "%s")
507#define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx")
508#define DRIVER_STATE_PRINT_HEX(x) DRIVER_STATE_PRINT(x, "0x%x")
509
510 DRIVER_STATE_PRINT_INT(tx_blocks_available);
511 DRIVER_STATE_PRINT_INT(tx_allocated_blocks);
512 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]);
513 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]);
514 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]);
515 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]);
516 DRIVER_STATE_PRINT_INT(tx_frames_cnt);
517 DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]);
518 DRIVER_STATE_PRINT_INT(tx_queue_count[0]);
519 DRIVER_STATE_PRINT_INT(tx_queue_count[1]);
520 DRIVER_STATE_PRINT_INT(tx_queue_count[2]);
521 DRIVER_STATE_PRINT_INT(tx_queue_count[3]);
522 DRIVER_STATE_PRINT_INT(tx_packets_count);
523 DRIVER_STATE_PRINT_INT(tx_results_count);
524 DRIVER_STATE_PRINT_LHEX(flags);
525 DRIVER_STATE_PRINT_INT(tx_blocks_freed);
526 DRIVER_STATE_PRINT_INT(rx_counter);
527 DRIVER_STATE_PRINT_INT(state);
528 DRIVER_STATE_PRINT_INT(channel);
529 DRIVER_STATE_PRINT_INT(band);
530 DRIVER_STATE_PRINT_INT(power_level);
531 DRIVER_STATE_PRINT_INT(sg_enabled);
532 DRIVER_STATE_PRINT_INT(enable_11a);
533 DRIVER_STATE_PRINT_INT(noise);
534 DRIVER_STATE_PRINT_HEX(ap_fw_ps_map);
535 DRIVER_STATE_PRINT_LHEX(ap_ps_map);
536 DRIVER_STATE_PRINT_HEX(quirks);
537 DRIVER_STATE_PRINT_HEX(irq);
538 DRIVER_STATE_PRINT_HEX(ref_clock);
539 DRIVER_STATE_PRINT_HEX(tcxo_clock);
540 DRIVER_STATE_PRINT_HEX(hw_pg_ver);
541 DRIVER_STATE_PRINT_HEX(platform_quirks);
542 DRIVER_STATE_PRINT_HEX(chip.id);
543 DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
544 DRIVER_STATE_PRINT_INT(sched_scanning);
545
546#undef DRIVER_STATE_PRINT_INT
547#undef DRIVER_STATE_PRINT_LONG
548#undef DRIVER_STATE_PRINT_HEX
549#undef DRIVER_STATE_PRINT_LHEX
550#undef DRIVER_STATE_PRINT_STR
551#undef DRIVER_STATE_PRINT
552#undef DRIVER_STATE_BUF_LEN
553
554 mutex_unlock(&wl->mutex);
555
556 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
557 kfree(buf);
558 return ret;
559}
560
561static const struct file_operations driver_state_ops = {
562 .read = driver_state_read,
563 .open = simple_open,
564 .llseek = default_llseek,
565};
566
567static ssize_t vifs_state_read(struct file *file, char __user *user_buf,
568 size_t count, loff_t *ppos)
569{
570 struct wl1271 *wl = file->private_data;
571 struct wl12xx_vif *wlvif;
572 int ret, res = 0;
573 const int buf_size = 4096;
574 char *buf;
575 char tmp_buf[64];
576
577 buf = kzalloc(buf_size, GFP_KERNEL);
578 if (!buf)
579 return -ENOMEM;
580
581 mutex_lock(&wl->mutex);
582
583#define VIF_STATE_PRINT(x, fmt) \
584 (res += scnprintf(buf + res, buf_size - res, \
585 #x " = " fmt "\n", wlvif->x))
586
587#define VIF_STATE_PRINT_LONG(x) VIF_STATE_PRINT(x, "%ld")
588#define VIF_STATE_PRINT_INT(x) VIF_STATE_PRINT(x, "%d")
589#define VIF_STATE_PRINT_STR(x) VIF_STATE_PRINT(x, "%s")
590#define VIF_STATE_PRINT_LHEX(x) VIF_STATE_PRINT(x, "0x%lx")
591#define VIF_STATE_PRINT_LLHEX(x) VIF_STATE_PRINT(x, "0x%llx")
592#define VIF_STATE_PRINT_HEX(x) VIF_STATE_PRINT(x, "0x%x")
593
594#define VIF_STATE_PRINT_NSTR(x, len) \
595 do { \
596 memset(tmp_buf, 0, sizeof(tmp_buf)); \
597 memcpy(tmp_buf, wlvif->x, \
598 min_t(u8, len, sizeof(tmp_buf) - 1)); \
599 res += scnprintf(buf + res, buf_size - res, \
600 #x " = %s\n", tmp_buf); \
601 } while (0)
602
603 wl12xx_for_each_wlvif(wl, wlvif) {
604 VIF_STATE_PRINT_INT(role_id);
605 VIF_STATE_PRINT_INT(bss_type);
606 VIF_STATE_PRINT_LHEX(flags);
607 VIF_STATE_PRINT_INT(p2p);
608 VIF_STATE_PRINT_INT(dev_role_id);
609 VIF_STATE_PRINT_INT(dev_hlid);
610
611 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
612 wlvif->bss_type == BSS_TYPE_IBSS) {
613 VIF_STATE_PRINT_INT(sta.hlid);
614 VIF_STATE_PRINT_INT(sta.ba_rx_bitmap);
615 VIF_STATE_PRINT_INT(sta.basic_rate_idx);
616 VIF_STATE_PRINT_INT(sta.ap_rate_idx);
617 VIF_STATE_PRINT_INT(sta.p2p_rate_idx);
618 VIF_STATE_PRINT_INT(sta.qos);
619 } else {
620 VIF_STATE_PRINT_INT(ap.global_hlid);
621 VIF_STATE_PRINT_INT(ap.bcast_hlid);
622 VIF_STATE_PRINT_LHEX(ap.sta_hlid_map[0]);
623 VIF_STATE_PRINT_INT(ap.mgmt_rate_idx);
624 VIF_STATE_PRINT_INT(ap.bcast_rate_idx);
625 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[0]);
626 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[1]);
627 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[2]);
628 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[3]);
629 }
630 VIF_STATE_PRINT_INT(last_tx_hlid);
631 VIF_STATE_PRINT_LHEX(links_map[0]);
632 VIF_STATE_PRINT_NSTR(ssid, wlvif->ssid_len);
633 VIF_STATE_PRINT_INT(band);
634 VIF_STATE_PRINT_INT(channel);
635 VIF_STATE_PRINT_HEX(bitrate_masks[0]);
636 VIF_STATE_PRINT_HEX(bitrate_masks[1]);
637 VIF_STATE_PRINT_HEX(basic_rate_set);
638 VIF_STATE_PRINT_HEX(basic_rate);
639 VIF_STATE_PRINT_HEX(rate_set);
640 VIF_STATE_PRINT_INT(beacon_int);
641 VIF_STATE_PRINT_INT(default_key);
642 VIF_STATE_PRINT_INT(aid);
643 VIF_STATE_PRINT_INT(session_counter);
644 VIF_STATE_PRINT_INT(psm_entry_retry);
645 VIF_STATE_PRINT_INT(power_level);
646 VIF_STATE_PRINT_INT(rssi_thold);
647 VIF_STATE_PRINT_INT(last_rssi_event);
648 VIF_STATE_PRINT_INT(ba_support);
649 VIF_STATE_PRINT_INT(ba_allowed);
650 VIF_STATE_PRINT_INT(is_gem);
651 VIF_STATE_PRINT_LLHEX(tx_security_seq);
652 VIF_STATE_PRINT_INT(tx_security_last_seq_lsb);
653 }
654
655#undef VIF_STATE_PRINT_INT
656#undef VIF_STATE_PRINT_LONG
657#undef VIF_STATE_PRINT_HEX
658#undef VIF_STATE_PRINT_LHEX
659#undef VIF_STATE_PRINT_LLHEX
660#undef VIF_STATE_PRINT_STR
661#undef VIF_STATE_PRINT_NSTR
662#undef VIF_STATE_PRINT
663
664 mutex_unlock(&wl->mutex);
665
666 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
667 kfree(buf);
668 return ret;
669}
670
671static const struct file_operations vifs_state_ops = {
672 .read = vifs_state_read,
673 .open = simple_open,
674 .llseek = default_llseek,
675};
676
677static ssize_t dtim_interval_read(struct file *file, char __user *user_buf,
678 size_t count, loff_t *ppos)
679{
680 struct wl1271 *wl = file->private_data;
681 u8 value;
682
683 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
684 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
685 value = wl->conf.conn.listen_interval;
686 else
687 value = 0;
688
689 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
690}
691
692static ssize_t dtim_interval_write(struct file *file,
693 const char __user *user_buf,
694 size_t count, loff_t *ppos)
695{
696 struct wl1271 *wl = file->private_data;
697 unsigned long value;
698 int ret;
699
700 ret = kstrtoul_from_user(user_buf, count, 10, &value);
701 if (ret < 0) {
702 wl1271_warning("illegal value for dtim_interval");
703 return -EINVAL;
704 }
705
706 if (value < 1 || value > 10) {
707 wl1271_warning("dtim value is not in valid range");
708 return -ERANGE;
709 }
710
711 mutex_lock(&wl->mutex);
712
713 wl->conf.conn.listen_interval = value;
714 /* for some reason there are different event types for 1 and >1 */
715 if (value == 1)
716 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
717 else
718 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
719
720 /*
721 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
722 * take effect on the next time we enter psm.
723 */
724 mutex_unlock(&wl->mutex);
725 return count;
726}
727
728static const struct file_operations dtim_interval_ops = {
729 .read = dtim_interval_read,
730 .write = dtim_interval_write,
731 .open = simple_open,
732 .llseek = default_llseek,
733};
734
735
736
737static ssize_t suspend_dtim_interval_read(struct file *file,
738 char __user *user_buf,
739 size_t count, loff_t *ppos)
740{
741 struct wl1271 *wl = file->private_data;
742 u8 value;
743
744 if (wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
745 wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
746 value = wl->conf.conn.suspend_listen_interval;
747 else
748 value = 0;
749
750 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
751}
752
753static ssize_t suspend_dtim_interval_write(struct file *file,
754 const char __user *user_buf,
755 size_t count, loff_t *ppos)
756{
757 struct wl1271 *wl = file->private_data;
758 unsigned long value;
759 int ret;
760
761 ret = kstrtoul_from_user(user_buf, count, 10, &value);
762 if (ret < 0) {
763 wl1271_warning("illegal value for suspend_dtim_interval");
764 return -EINVAL;
765 }
766
767 if (value < 1 || value > 10) {
768 wl1271_warning("suspend_dtim value is not in valid range");
769 return -ERANGE;
770 }
771
772 mutex_lock(&wl->mutex);
773
774 wl->conf.conn.suspend_listen_interval = value;
775 /* for some reason there are different event types for 1 and >1 */
776 if (value == 1)
777 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
778 else
779 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
780
781 mutex_unlock(&wl->mutex);
782 return count;
783}
784
785
786static const struct file_operations suspend_dtim_interval_ops = {
787 .read = suspend_dtim_interval_read,
788 .write = suspend_dtim_interval_write,
789 .open = simple_open,
790 .llseek = default_llseek,
791};
792
793static ssize_t beacon_interval_read(struct file *file, char __user *user_buf,
794 size_t count, loff_t *ppos)
795{
796 struct wl1271 *wl = file->private_data;
797 u8 value;
798
799 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON ||
800 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS)
801 value = wl->conf.conn.listen_interval;
802 else
803 value = 0;
804
805 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
806}
807
808static ssize_t beacon_interval_write(struct file *file,
809 const char __user *user_buf,
810 size_t count, loff_t *ppos)
811{
812 struct wl1271 *wl = file->private_data;
813 unsigned long value;
814 int ret;
815
816 ret = kstrtoul_from_user(user_buf, count, 10, &value);
817 if (ret < 0) {
818 wl1271_warning("illegal value for beacon_interval");
819 return -EINVAL;
820 }
821
822 if (value < 1 || value > 255) {
823 wl1271_warning("beacon interval value is not in valid range");
824 return -ERANGE;
825 }
826
827 mutex_lock(&wl->mutex);
828
829 wl->conf.conn.listen_interval = value;
830 /* for some reason there are different event types for 1 and >1 */
831 if (value == 1)
832 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON;
833 else
834 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS;
835
836 /*
837 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
838 * take effect on the next time we enter psm.
839 */
840 mutex_unlock(&wl->mutex);
841 return count;
842}
843
844static const struct file_operations beacon_interval_ops = {
845 .read = beacon_interval_read,
846 .write = beacon_interval_write,
847 .open = simple_open,
848 .llseek = default_llseek,
849};
850
851static ssize_t rx_streaming_interval_write(struct file *file,
852 const char __user *user_buf,
853 size_t count, loff_t *ppos)
854{
855 struct wl1271 *wl = file->private_data;
856 struct wl12xx_vif *wlvif;
857 unsigned long value;
858 int ret;
859
860 ret = kstrtoul_from_user(user_buf, count, 10, &value);
861 if (ret < 0) {
862 wl1271_warning("illegal value in rx_streaming_interval!");
863 return -EINVAL;
864 }
865
866 /* valid values: 0, 10-100 */
867 if (value && (value < 10 || value > 100)) {
868 wl1271_warning("value is not in range!");
869 return -ERANGE;
870 }
871
872 mutex_lock(&wl->mutex);
873
874 wl->conf.rx_streaming.interval = value;
875
876 ret = wl1271_ps_elp_wakeup(wl);
877 if (ret < 0)
878 goto out;
879
880 wl12xx_for_each_wlvif_sta(wl, wlvif) {
881 wl1271_recalc_rx_streaming(wl, wlvif);
882 }
883
884 wl1271_ps_elp_sleep(wl);
885out:
886 mutex_unlock(&wl->mutex);
887 return count;
888}
889
890static ssize_t rx_streaming_interval_read(struct file *file,
891 char __user *userbuf,
892 size_t count, loff_t *ppos)
893{
894 struct wl1271 *wl = file->private_data;
895 return wl1271_format_buffer(userbuf, count, ppos,
896 "%d\n", wl->conf.rx_streaming.interval);
897}
898
899static const struct file_operations rx_streaming_interval_ops = {
900 .read = rx_streaming_interval_read,
901 .write = rx_streaming_interval_write,
902 .open = simple_open,
903 .llseek = default_llseek,
904};
905
906static ssize_t rx_streaming_always_write(struct file *file,
907 const char __user *user_buf,
908 size_t count, loff_t *ppos)
909{
910 struct wl1271 *wl = file->private_data;
911 struct wl12xx_vif *wlvif;
912 unsigned long value;
913 int ret;
914
915 ret = kstrtoul_from_user(user_buf, count, 10, &value);
916 if (ret < 0) {
917 wl1271_warning("illegal value in rx_streaming_write!");
918 return -EINVAL;
919 }
920
921 /* valid values: 0, 10-100 */
922 if (!(value == 0 || value == 1)) {
923 wl1271_warning("value is not in valid!");
924 return -EINVAL;
925 }
926
927 mutex_lock(&wl->mutex);
928
929 wl->conf.rx_streaming.always = value;
930
931 ret = wl1271_ps_elp_wakeup(wl);
932 if (ret < 0)
933 goto out;
934
935 wl12xx_for_each_wlvif_sta(wl, wlvif) {
936 wl1271_recalc_rx_streaming(wl, wlvif);
937 }
938
939 wl1271_ps_elp_sleep(wl);
940out:
941 mutex_unlock(&wl->mutex);
942 return count;
943}
944
945static ssize_t rx_streaming_always_read(struct file *file,
946 char __user *userbuf,
947 size_t count, loff_t *ppos)
948{
949 struct wl1271 *wl = file->private_data;
950 return wl1271_format_buffer(userbuf, count, ppos,
951 "%d\n", wl->conf.rx_streaming.always);
952}
953
954static const struct file_operations rx_streaming_always_ops = {
955 .read = rx_streaming_always_read,
956 .write = rx_streaming_always_write,
957 .open = simple_open,
958 .llseek = default_llseek,
959};
960
961static ssize_t beacon_filtering_write(struct file *file,
962 const char __user *user_buf,
963 size_t count, loff_t *ppos)
964{
965 struct wl1271 *wl = file->private_data;
966 struct wl12xx_vif *wlvif;
967 char buf[10];
968 size_t len;
969 unsigned long value;
970 int ret;
971
972 len = min(count, sizeof(buf) - 1);
973 if (copy_from_user(buf, user_buf, len))
974 return -EFAULT;
975 buf[len] = '\0';
976
977 ret = kstrtoul(buf, 0, &value);
978 if (ret < 0) {
979 wl1271_warning("illegal value for beacon_filtering!");
980 return -EINVAL;
981 }
982
983 mutex_lock(&wl->mutex);
984
985 ret = wl1271_ps_elp_wakeup(wl);
986 if (ret < 0)
987 goto out;
988
989 wl12xx_for_each_wlvif(wl, wlvif) {
990 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value);
991 }
992
993 wl1271_ps_elp_sleep(wl);
994out:
995 mutex_unlock(&wl->mutex);
996 return count;
997}
998
999static const struct file_operations beacon_filtering_ops = {
1000 .write = beacon_filtering_write,
1001 .open = simple_open,
1002 .llseek = default_llseek,
1003};
1004
1005static int wl1271_debugfs_add_files(struct wl1271 *wl,
1006 struct dentry *rootdir)
1007{
1008 int ret = 0;
1009 struct dentry *entry, *stats, *streaming;
1010
1011 stats = debugfs_create_dir("fw-statistics", rootdir);
1012 if (!stats || IS_ERR(stats)) {
1013 entry = stats;
1014 goto err;
1015 }
1016
1017 DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
1018
1019 DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
1020 DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
1021 DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
1022 DEBUGFS_FWSTATS_ADD(rx, dropped);
1023 DEBUGFS_FWSTATS_ADD(rx, fcs_err);
1024 DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
1025 DEBUGFS_FWSTATS_ADD(rx, path_reset);
1026 DEBUGFS_FWSTATS_ADD(rx, reset_counter);
1027
1028 DEBUGFS_FWSTATS_ADD(dma, rx_requested);
1029 DEBUGFS_FWSTATS_ADD(dma, rx_errors);
1030 DEBUGFS_FWSTATS_ADD(dma, tx_requested);
1031 DEBUGFS_FWSTATS_ADD(dma, tx_errors);
1032
1033 DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
1034 DEBUGFS_FWSTATS_ADD(isr, fiqs);
1035 DEBUGFS_FWSTATS_ADD(isr, rx_headers);
1036 DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
1037 DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
1038 DEBUGFS_FWSTATS_ADD(isr, irqs);
1039 DEBUGFS_FWSTATS_ADD(isr, tx_procs);
1040 DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
1041 DEBUGFS_FWSTATS_ADD(isr, dma0_done);
1042 DEBUGFS_FWSTATS_ADD(isr, dma1_done);
1043 DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
1044 DEBUGFS_FWSTATS_ADD(isr, commands);
1045 DEBUGFS_FWSTATS_ADD(isr, rx_procs);
1046 DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
1047 DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
1048 DEBUGFS_FWSTATS_ADD(isr, pci_pm);
1049 DEBUGFS_FWSTATS_ADD(isr, wakeups);
1050 DEBUGFS_FWSTATS_ADD(isr, low_rssi);
1051
1052 DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
1053 DEBUGFS_FWSTATS_ADD(wep, default_key_count);
1054 /* skipping wep.reserved */
1055 DEBUGFS_FWSTATS_ADD(wep, key_not_found);
1056 DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
1057 DEBUGFS_FWSTATS_ADD(wep, packets);
1058 DEBUGFS_FWSTATS_ADD(wep, interrupt);
1059
1060 DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
1061 DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
1062 DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
1063 DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
1064 DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
1065 DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
1066 DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
1067 DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
1068 DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
1069 DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
1070 DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
1071 DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
1072 /* skipping cont_miss_bcns_spread for now */
1073 DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);
1074
1075 DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
1076 DEBUGFS_FWSTATS_ADD(mic, calc_failure);
1077
1078 DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
1079 DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
1080 DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
1081 DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
1082 DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
1083 DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);
1084
1085 DEBUGFS_FWSTATS_ADD(event, heart_beat);
1086 DEBUGFS_FWSTATS_ADD(event, calibration);
1087 DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
1088 DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
1089 DEBUGFS_FWSTATS_ADD(event, rx_pool);
1090 DEBUGFS_FWSTATS_ADD(event, oom_late);
1091 DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
1092 DEBUGFS_FWSTATS_ADD(event, tx_stuck);
1093
1094 DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
1095 DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
1096 DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
1097 DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
1098 DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
1099 DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
1100 DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);
1101
1102 DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
1103 DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
1104 DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
1105 DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
1106 DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
1107
1108 DEBUGFS_ADD(tx_queue_len, rootdir);
1109 DEBUGFS_ADD(retry_count, rootdir);
1110 DEBUGFS_ADD(excessive_retries, rootdir);
1111
1112 DEBUGFS_ADD(gpio_power, rootdir);
1113 DEBUGFS_ADD(start_recovery, rootdir);
1114 DEBUGFS_ADD(driver_state, rootdir);
1115 DEBUGFS_ADD(vifs_state, rootdir);
1116 DEBUGFS_ADD(dtim_interval, rootdir);
1117 DEBUGFS_ADD(suspend_dtim_interval, rootdir);
1118 DEBUGFS_ADD(beacon_interval, rootdir);
1119 DEBUGFS_ADD(beacon_filtering, rootdir);
1120 DEBUGFS_ADD(dynamic_ps_timeout, rootdir);
1121 DEBUGFS_ADD(forced_ps, rootdir);
1122 DEBUGFS_ADD(split_scan_timeout, rootdir);
1123
1124 streaming = debugfs_create_dir("rx_streaming", rootdir);
1125 if (!streaming || IS_ERR(streaming))
1126 goto err;
1127
1128 DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming);
1129 DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming);
1130
1131
1132 return 0;
1133
1134err:
1135 if (IS_ERR(entry))
1136 ret = PTR_ERR(entry);
1137 else
1138 ret = -ENOMEM;
1139
1140 return ret;
1141}
1142
1143void wl1271_debugfs_reset(struct wl1271 *wl)
1144{
1145 if (!wl->stats.fw_stats)
1146 return;
1147
1148 memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
1149 wl->stats.retry_count = 0;
1150 wl->stats.excessive_retries = 0;
1151}
1152
1153int wl1271_debugfs_init(struct wl1271 *wl)
1154{
1155 int ret;
1156 struct dentry *rootdir;
1157
1158 rootdir = debugfs_create_dir(KBUILD_MODNAME,
1159 wl->hw->wiphy->debugfsdir);
1160
1161 if (IS_ERR(rootdir)) {
1162 ret = PTR_ERR(rootdir);
1163 goto err;
1164 }
1165
1166 wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats),
1167 GFP_KERNEL);
1168
1169 if (!wl->stats.fw_stats) {
1170 ret = -ENOMEM;
1171 goto err_fw;
1172 }
1173
1174 wl->stats.fw_stats_update = jiffies;
1175
1176 ret = wl1271_debugfs_add_files(wl, rootdir);
1177
1178 if (ret < 0)
1179 goto err_file;
1180
1181 return 0;
1182
1183err_file:
1184 kfree(wl->stats.fw_stats);
1185 wl->stats.fw_stats = NULL;
1186
1187err_fw:
1188 debugfs_remove_recursive(rootdir);
1189
1190err:
1191 return ret;
1192}
1193
1194void wl1271_debugfs_exit(struct wl1271 *wl)
1195{
1196 kfree(wl->stats.fw_stats);
1197 wl->stats.fw_stats = NULL;
1198}