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 #include <linux/pm_runtime.h>
30
31 #include "wlcore.h"
32 #include "debug.h"
33 #include "acx.h"
34 #include "ps.h"
35 #include "io.h"
36 #include "tx.h"
37 #include "hw_ops.h"
38
39 /* ms */
40 #define WL1271_DEBUGFS_STATS_LIFETIME 1000
41
42 #define WLCORE_MAX_BLOCK_SIZE ((size_t)(4*PAGE_SIZE))
43
44 /* debugfs macros idea from mac80211 */
wl1271_format_buffer(char __user * userbuf,size_t count,loff_t * ppos,char * fmt,...)45 int wl1271_format_buffer(char __user *userbuf, size_t count,
46 loff_t *ppos, char *fmt, ...)
47 {
48 va_list args;
49 char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
50 int res;
51
52 va_start(args, fmt);
53 res = vscnprintf(buf, sizeof(buf), fmt, args);
54 va_end(args);
55
56 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
57 }
58 EXPORT_SYMBOL_GPL(wl1271_format_buffer);
59
wl1271_debugfs_update_stats(struct wl1271 * wl)60 void wl1271_debugfs_update_stats(struct wl1271 *wl)
61 {
62 int ret;
63
64 mutex_lock(&wl->mutex);
65
66 if (unlikely(wl->state != WLCORE_STATE_ON))
67 goto out;
68
69 ret = pm_runtime_get_sync(wl->dev);
70 if (ret < 0) {
71 pm_runtime_put_noidle(wl->dev);
72 goto out;
73 }
74
75 if (!wl->plt &&
76 time_after(jiffies, wl->stats.fw_stats_update +
77 msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) {
78 wl1271_acx_statistics(wl, wl->stats.fw_stats);
79 wl->stats.fw_stats_update = jiffies;
80 }
81
82 pm_runtime_mark_last_busy(wl->dev);
83 pm_runtime_put_autosuspend(wl->dev);
84
85 out:
86 mutex_unlock(&wl->mutex);
87 }
88 EXPORT_SYMBOL_GPL(wl1271_debugfs_update_stats);
89
90 DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
91 DEBUGFS_READONLY_FILE(excessive_retries, "%u",
92 wl->stats.excessive_retries);
93
tx_queue_len_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)94 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
95 size_t count, loff_t *ppos)
96 {
97 struct wl1271 *wl = file->private_data;
98 u32 queue_len;
99 char buf[20];
100 int res;
101
102 queue_len = wl1271_tx_total_queue_count(wl);
103
104 res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
105 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
106 }
107
108 static const struct file_operations tx_queue_len_ops = {
109 .read = tx_queue_len_read,
110 .open = simple_open,
111 .llseek = default_llseek,
112 };
113
chip_op_handler(struct wl1271 * wl,unsigned long value,void * arg)114 static void chip_op_handler(struct wl1271 *wl, unsigned long value,
115 void *arg)
116 {
117 int ret;
118 int (*chip_op) (struct wl1271 *wl);
119
120 if (!arg) {
121 wl1271_warning("debugfs chip_op_handler with no callback");
122 return;
123 }
124
125 ret = pm_runtime_get_sync(wl->dev);
126 if (ret < 0) {
127 pm_runtime_put_noidle(wl->dev);
128
129 return;
130 }
131
132 chip_op = arg;
133 chip_op(wl);
134
135 pm_runtime_mark_last_busy(wl->dev);
136 pm_runtime_put_autosuspend(wl->dev);
137 }
138
139
no_write_handler(struct wl1271 * wl,unsigned long value,unsigned long param)140 static inline void no_write_handler(struct wl1271 *wl,
141 unsigned long value,
142 unsigned long param)
143 {
144 }
145
146 #define WL12XX_CONF_DEBUGFS(param, conf_sub_struct, \
147 min_val, max_val, write_handler_locked, \
148 write_handler_arg) \
149 static ssize_t param##_read(struct file *file, \
150 char __user *user_buf, \
151 size_t count, loff_t *ppos) \
152 { \
153 struct wl1271 *wl = file->private_data; \
154 return wl1271_format_buffer(user_buf, count, \
155 ppos, "%d\n", \
156 wl->conf.conf_sub_struct.param); \
157 } \
158 \
159 static ssize_t param##_write(struct file *file, \
160 const char __user *user_buf, \
161 size_t count, loff_t *ppos) \
162 { \
163 struct wl1271 *wl = file->private_data; \
164 unsigned long value; \
165 int ret; \
166 \
167 ret = kstrtoul_from_user(user_buf, count, 10, &value); \
168 if (ret < 0) { \
169 wl1271_warning("illegal value for " #param); \
170 return -EINVAL; \
171 } \
172 \
173 if (value < min_val || value > max_val) { \
174 wl1271_warning(#param " is not in valid range"); \
175 return -ERANGE; \
176 } \
177 \
178 mutex_lock(&wl->mutex); \
179 wl->conf.conf_sub_struct.param = value; \
180 \
181 write_handler_locked(wl, value, write_handler_arg); \
182 \
183 mutex_unlock(&wl->mutex); \
184 return count; \
185 } \
186 \
187 static const struct file_operations param##_ops = { \
188 .read = param##_read, \
189 .write = param##_write, \
190 .open = simple_open, \
191 .llseek = default_llseek, \
192 };
193
194 WL12XX_CONF_DEBUGFS(irq_pkt_threshold, rx, 0, 65535,
195 chip_op_handler, wl1271_acx_init_rx_interrupt)
196 WL12XX_CONF_DEBUGFS(irq_blk_threshold, rx, 0, 65535,
197 chip_op_handler, wl1271_acx_init_rx_interrupt)
198 WL12XX_CONF_DEBUGFS(irq_timeout, rx, 0, 100,
199 chip_op_handler, wl1271_acx_init_rx_interrupt)
200
gpio_power_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)201 static ssize_t gpio_power_read(struct file *file, char __user *user_buf,
202 size_t count, loff_t *ppos)
203 {
204 struct wl1271 *wl = file->private_data;
205 bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
206
207 int res;
208 char buf[10];
209
210 res = scnprintf(buf, sizeof(buf), "%d\n", state);
211
212 return simple_read_from_buffer(user_buf, count, ppos, buf, res);
213 }
214
gpio_power_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)215 static ssize_t gpio_power_write(struct file *file,
216 const char __user *user_buf,
217 size_t count, loff_t *ppos)
218 {
219 struct wl1271 *wl = file->private_data;
220 unsigned long value;
221 int ret;
222
223 ret = kstrtoul_from_user(user_buf, count, 10, &value);
224 if (ret < 0) {
225 wl1271_warning("illegal value in gpio_power");
226 return -EINVAL;
227 }
228
229 mutex_lock(&wl->mutex);
230
231 if (value)
232 wl1271_power_on(wl);
233 else
234 wl1271_power_off(wl);
235
236 mutex_unlock(&wl->mutex);
237 return count;
238 }
239
240 static const struct file_operations gpio_power_ops = {
241 .read = gpio_power_read,
242 .write = gpio_power_write,
243 .open = simple_open,
244 .llseek = default_llseek,
245 };
246
start_recovery_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)247 static ssize_t start_recovery_write(struct file *file,
248 const char __user *user_buf,
249 size_t count, loff_t *ppos)
250 {
251 struct wl1271 *wl = file->private_data;
252
253 mutex_lock(&wl->mutex);
254 wl12xx_queue_recovery_work(wl);
255 mutex_unlock(&wl->mutex);
256
257 return count;
258 }
259
260 static const struct file_operations start_recovery_ops = {
261 .write = start_recovery_write,
262 .open = simple_open,
263 .llseek = default_llseek,
264 };
265
dynamic_ps_timeout_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)266 static ssize_t dynamic_ps_timeout_read(struct file *file, char __user *user_buf,
267 size_t count, loff_t *ppos)
268 {
269 struct wl1271 *wl = file->private_data;
270
271 return wl1271_format_buffer(user_buf, count,
272 ppos, "%d\n",
273 wl->conf.conn.dynamic_ps_timeout);
274 }
275
dynamic_ps_timeout_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)276 static ssize_t dynamic_ps_timeout_write(struct file *file,
277 const char __user *user_buf,
278 size_t count, loff_t *ppos)
279 {
280 struct wl1271 *wl = file->private_data;
281 struct wl12xx_vif *wlvif;
282 unsigned long value;
283 int ret;
284
285 ret = kstrtoul_from_user(user_buf, count, 10, &value);
286 if (ret < 0) {
287 wl1271_warning("illegal value in dynamic_ps");
288 return -EINVAL;
289 }
290
291 if (value < 1 || value > 65535) {
292 wl1271_warning("dynamic_ps_timeout is not in valid range");
293 return -ERANGE;
294 }
295
296 mutex_lock(&wl->mutex);
297
298 wl->conf.conn.dynamic_ps_timeout = value;
299
300 if (unlikely(wl->state != WLCORE_STATE_ON))
301 goto out;
302
303 ret = pm_runtime_get_sync(wl->dev);
304 if (ret < 0) {
305 pm_runtime_put_noidle(wl->dev);
306 goto out;
307 }
308
309 /* In case we're already in PSM, trigger it again to set new timeout
310 * immediately without waiting for re-association
311 */
312
313 wl12xx_for_each_wlvif_sta(wl, wlvif) {
314 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
315 wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE);
316 }
317
318 pm_runtime_mark_last_busy(wl->dev);
319 pm_runtime_put_autosuspend(wl->dev);
320
321 out:
322 mutex_unlock(&wl->mutex);
323 return count;
324 }
325
326 static const struct file_operations dynamic_ps_timeout_ops = {
327 .read = dynamic_ps_timeout_read,
328 .write = dynamic_ps_timeout_write,
329 .open = simple_open,
330 .llseek = default_llseek,
331 };
332
forced_ps_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)333 static ssize_t forced_ps_read(struct file *file, char __user *user_buf,
334 size_t count, loff_t *ppos)
335 {
336 struct wl1271 *wl = file->private_data;
337
338 return wl1271_format_buffer(user_buf, count,
339 ppos, "%d\n",
340 wl->conf.conn.forced_ps);
341 }
342
forced_ps_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)343 static ssize_t forced_ps_write(struct file *file,
344 const char __user *user_buf,
345 size_t count, loff_t *ppos)
346 {
347 struct wl1271 *wl = file->private_data;
348 struct wl12xx_vif *wlvif;
349 unsigned long value;
350 int ret, ps_mode;
351
352 ret = kstrtoul_from_user(user_buf, count, 10, &value);
353 if (ret < 0) {
354 wl1271_warning("illegal value in forced_ps");
355 return -EINVAL;
356 }
357
358 if (value != 1 && value != 0) {
359 wl1271_warning("forced_ps should be either 0 or 1");
360 return -ERANGE;
361 }
362
363 mutex_lock(&wl->mutex);
364
365 if (wl->conf.conn.forced_ps == value)
366 goto out;
367
368 wl->conf.conn.forced_ps = value;
369
370 if (unlikely(wl->state != WLCORE_STATE_ON))
371 goto out;
372
373 ret = pm_runtime_get_sync(wl->dev);
374 if (ret < 0) {
375 pm_runtime_put_noidle(wl->dev);
376 goto out;
377 }
378
379 /* In case we're already in PSM, trigger it again to switch mode
380 * immediately without waiting for re-association
381 */
382
383 ps_mode = value ? STATION_POWER_SAVE_MODE : STATION_AUTO_PS_MODE;
384
385 wl12xx_for_each_wlvif_sta(wl, wlvif) {
386 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
387 wl1271_ps_set_mode(wl, wlvif, ps_mode);
388 }
389
390 pm_runtime_mark_last_busy(wl->dev);
391 pm_runtime_put_autosuspend(wl->dev);
392
393 out:
394 mutex_unlock(&wl->mutex);
395 return count;
396 }
397
398 static const struct file_operations forced_ps_ops = {
399 .read = forced_ps_read,
400 .write = forced_ps_write,
401 .open = simple_open,
402 .llseek = default_llseek,
403 };
404
split_scan_timeout_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)405 static ssize_t split_scan_timeout_read(struct file *file, char __user *user_buf,
406 size_t count, loff_t *ppos)
407 {
408 struct wl1271 *wl = file->private_data;
409
410 return wl1271_format_buffer(user_buf, count,
411 ppos, "%d\n",
412 wl->conf.scan.split_scan_timeout / 1000);
413 }
414
split_scan_timeout_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)415 static ssize_t split_scan_timeout_write(struct file *file,
416 const char __user *user_buf,
417 size_t count, loff_t *ppos)
418 {
419 struct wl1271 *wl = file->private_data;
420 unsigned long value;
421 int ret;
422
423 ret = kstrtoul_from_user(user_buf, count, 10, &value);
424 if (ret < 0) {
425 wl1271_warning("illegal value in split_scan_timeout");
426 return -EINVAL;
427 }
428
429 if (value == 0)
430 wl1271_info("split scan will be disabled");
431
432 mutex_lock(&wl->mutex);
433
434 wl->conf.scan.split_scan_timeout = value * 1000;
435
436 mutex_unlock(&wl->mutex);
437 return count;
438 }
439
440 static const struct file_operations split_scan_timeout_ops = {
441 .read = split_scan_timeout_read,
442 .write = split_scan_timeout_write,
443 .open = simple_open,
444 .llseek = default_llseek,
445 };
446
driver_state_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)447 static ssize_t driver_state_read(struct file *file, char __user *user_buf,
448 size_t count, loff_t *ppos)
449 {
450 struct wl1271 *wl = file->private_data;
451 int res = 0;
452 ssize_t ret;
453 char *buf;
454 struct wl12xx_vif *wlvif;
455
456 #define DRIVER_STATE_BUF_LEN 1024
457
458 buf = kmalloc(DRIVER_STATE_BUF_LEN, GFP_KERNEL);
459 if (!buf)
460 return -ENOMEM;
461
462 mutex_lock(&wl->mutex);
463
464 #define DRIVER_STATE_PRINT(x, fmt) \
465 (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\
466 #x " = " fmt "\n", wl->x))
467
468 #define DRIVER_STATE_PRINT_GENERIC(x, fmt, args...) \
469 (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\
470 #x " = " fmt "\n", args))
471
472 #define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld")
473 #define DRIVER_STATE_PRINT_INT(x) DRIVER_STATE_PRINT(x, "%d")
474 #define DRIVER_STATE_PRINT_STR(x) DRIVER_STATE_PRINT(x, "%s")
475 #define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx")
476 #define DRIVER_STATE_PRINT_HEX(x) DRIVER_STATE_PRINT(x, "0x%x")
477
478 wl12xx_for_each_wlvif_sta(wl, wlvif) {
479 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
480 continue;
481
482 DRIVER_STATE_PRINT_GENERIC(channel, "%d (%s)", wlvif->channel,
483 wlvif->p2p ? "P2P-CL" : "STA");
484 }
485
486 wl12xx_for_each_wlvif_ap(wl, wlvif)
487 DRIVER_STATE_PRINT_GENERIC(channel, "%d (%s)", wlvif->channel,
488 wlvif->p2p ? "P2P-GO" : "AP");
489
490 DRIVER_STATE_PRINT_INT(tx_blocks_available);
491 DRIVER_STATE_PRINT_INT(tx_allocated_blocks);
492 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]);
493 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]);
494 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]);
495 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]);
496 DRIVER_STATE_PRINT_INT(tx_frames_cnt);
497 DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]);
498 DRIVER_STATE_PRINT_INT(tx_queue_count[0]);
499 DRIVER_STATE_PRINT_INT(tx_queue_count[1]);
500 DRIVER_STATE_PRINT_INT(tx_queue_count[2]);
501 DRIVER_STATE_PRINT_INT(tx_queue_count[3]);
502 DRIVER_STATE_PRINT_INT(tx_packets_count);
503 DRIVER_STATE_PRINT_INT(tx_results_count);
504 DRIVER_STATE_PRINT_LHEX(flags);
505 DRIVER_STATE_PRINT_INT(tx_blocks_freed);
506 DRIVER_STATE_PRINT_INT(rx_counter);
507 DRIVER_STATE_PRINT_INT(state);
508 DRIVER_STATE_PRINT_INT(band);
509 DRIVER_STATE_PRINT_INT(power_level);
510 DRIVER_STATE_PRINT_INT(sg_enabled);
511 DRIVER_STATE_PRINT_INT(enable_11a);
512 DRIVER_STATE_PRINT_INT(noise);
513 DRIVER_STATE_PRINT_LHEX(ap_fw_ps_map);
514 DRIVER_STATE_PRINT_LHEX(ap_ps_map);
515 DRIVER_STATE_PRINT_HEX(quirks);
516 DRIVER_STATE_PRINT_HEX(irq);
517 /* TODO: ref_clock and tcxo_clock were moved to wl12xx priv */
518 DRIVER_STATE_PRINT_HEX(hw_pg_ver);
519 DRIVER_STATE_PRINT_HEX(irq_flags);
520 DRIVER_STATE_PRINT_HEX(chip.id);
521 DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
522 DRIVER_STATE_PRINT_STR(chip.phy_fw_ver_str);
523 DRIVER_STATE_PRINT_INT(recovery_count);
524
525 #undef DRIVER_STATE_PRINT_INT
526 #undef DRIVER_STATE_PRINT_LONG
527 #undef DRIVER_STATE_PRINT_HEX
528 #undef DRIVER_STATE_PRINT_LHEX
529 #undef DRIVER_STATE_PRINT_STR
530 #undef DRIVER_STATE_PRINT
531 #undef DRIVER_STATE_BUF_LEN
532
533 mutex_unlock(&wl->mutex);
534
535 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
536 kfree(buf);
537 return ret;
538 }
539
540 static const struct file_operations driver_state_ops = {
541 .read = driver_state_read,
542 .open = simple_open,
543 .llseek = default_llseek,
544 };
545
vifs_state_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)546 static ssize_t vifs_state_read(struct file *file, char __user *user_buf,
547 size_t count, loff_t *ppos)
548 {
549 struct wl1271 *wl = file->private_data;
550 struct wl12xx_vif *wlvif;
551 int ret, res = 0;
552 const int buf_size = 4096;
553 char *buf;
554 char tmp_buf[64];
555
556 buf = kzalloc(buf_size, GFP_KERNEL);
557 if (!buf)
558 return -ENOMEM;
559
560 mutex_lock(&wl->mutex);
561
562 #define VIF_STATE_PRINT(x, fmt) \
563 (res += scnprintf(buf + res, buf_size - res, \
564 #x " = " fmt "\n", wlvif->x))
565
566 #define VIF_STATE_PRINT_LONG(x) VIF_STATE_PRINT(x, "%ld")
567 #define VIF_STATE_PRINT_INT(x) VIF_STATE_PRINT(x, "%d")
568 #define VIF_STATE_PRINT_STR(x) VIF_STATE_PRINT(x, "%s")
569 #define VIF_STATE_PRINT_LHEX(x) VIF_STATE_PRINT(x, "0x%lx")
570 #define VIF_STATE_PRINT_LLHEX(x) VIF_STATE_PRINT(x, "0x%llx")
571 #define VIF_STATE_PRINT_HEX(x) VIF_STATE_PRINT(x, "0x%x")
572
573 #define VIF_STATE_PRINT_NSTR(x, len) \
574 do { \
575 memset(tmp_buf, 0, sizeof(tmp_buf)); \
576 memcpy(tmp_buf, wlvif->x, \
577 min_t(u8, len, sizeof(tmp_buf) - 1)); \
578 res += scnprintf(buf + res, buf_size - res, \
579 #x " = %s\n", tmp_buf); \
580 } while (0)
581
582 wl12xx_for_each_wlvif(wl, wlvif) {
583 VIF_STATE_PRINT_INT(role_id);
584 VIF_STATE_PRINT_INT(bss_type);
585 VIF_STATE_PRINT_LHEX(flags);
586 VIF_STATE_PRINT_INT(p2p);
587 VIF_STATE_PRINT_INT(dev_role_id);
588 VIF_STATE_PRINT_INT(dev_hlid);
589
590 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
591 wlvif->bss_type == BSS_TYPE_IBSS) {
592 VIF_STATE_PRINT_INT(sta.hlid);
593 VIF_STATE_PRINT_INT(sta.basic_rate_idx);
594 VIF_STATE_PRINT_INT(sta.ap_rate_idx);
595 VIF_STATE_PRINT_INT(sta.p2p_rate_idx);
596 VIF_STATE_PRINT_INT(sta.qos);
597 } else {
598 VIF_STATE_PRINT_INT(ap.global_hlid);
599 VIF_STATE_PRINT_INT(ap.bcast_hlid);
600 VIF_STATE_PRINT_LHEX(ap.sta_hlid_map[0]);
601 VIF_STATE_PRINT_INT(ap.mgmt_rate_idx);
602 VIF_STATE_PRINT_INT(ap.bcast_rate_idx);
603 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[0]);
604 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[1]);
605 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[2]);
606 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[3]);
607 }
608 VIF_STATE_PRINT_INT(last_tx_hlid);
609 VIF_STATE_PRINT_INT(tx_queue_count[0]);
610 VIF_STATE_PRINT_INT(tx_queue_count[1]);
611 VIF_STATE_PRINT_INT(tx_queue_count[2]);
612 VIF_STATE_PRINT_INT(tx_queue_count[3]);
613 VIF_STATE_PRINT_LHEX(links_map[0]);
614 VIF_STATE_PRINT_NSTR(ssid, wlvif->ssid_len);
615 VIF_STATE_PRINT_INT(band);
616 VIF_STATE_PRINT_INT(channel);
617 VIF_STATE_PRINT_HEX(bitrate_masks[0]);
618 VIF_STATE_PRINT_HEX(bitrate_masks[1]);
619 VIF_STATE_PRINT_HEX(basic_rate_set);
620 VIF_STATE_PRINT_HEX(basic_rate);
621 VIF_STATE_PRINT_HEX(rate_set);
622 VIF_STATE_PRINT_INT(beacon_int);
623 VIF_STATE_PRINT_INT(default_key);
624 VIF_STATE_PRINT_INT(aid);
625 VIF_STATE_PRINT_INT(psm_entry_retry);
626 VIF_STATE_PRINT_INT(power_level);
627 VIF_STATE_PRINT_INT(rssi_thold);
628 VIF_STATE_PRINT_INT(last_rssi_event);
629 VIF_STATE_PRINT_INT(ba_support);
630 VIF_STATE_PRINT_INT(ba_allowed);
631 VIF_STATE_PRINT_LLHEX(total_freed_pkts);
632 }
633
634 #undef VIF_STATE_PRINT_INT
635 #undef VIF_STATE_PRINT_LONG
636 #undef VIF_STATE_PRINT_HEX
637 #undef VIF_STATE_PRINT_LHEX
638 #undef VIF_STATE_PRINT_LLHEX
639 #undef VIF_STATE_PRINT_STR
640 #undef VIF_STATE_PRINT_NSTR
641 #undef VIF_STATE_PRINT
642
643 mutex_unlock(&wl->mutex);
644
645 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
646 kfree(buf);
647 return ret;
648 }
649
650 static const struct file_operations vifs_state_ops = {
651 .read = vifs_state_read,
652 .open = simple_open,
653 .llseek = default_llseek,
654 };
655
dtim_interval_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)656 static ssize_t dtim_interval_read(struct file *file, char __user *user_buf,
657 size_t count, loff_t *ppos)
658 {
659 struct wl1271 *wl = file->private_data;
660 u8 value;
661
662 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
663 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
664 value = wl->conf.conn.listen_interval;
665 else
666 value = 0;
667
668 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
669 }
670
dtim_interval_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)671 static ssize_t dtim_interval_write(struct file *file,
672 const char __user *user_buf,
673 size_t count, loff_t *ppos)
674 {
675 struct wl1271 *wl = file->private_data;
676 unsigned long value;
677 int ret;
678
679 ret = kstrtoul_from_user(user_buf, count, 10, &value);
680 if (ret < 0) {
681 wl1271_warning("illegal value for dtim_interval");
682 return -EINVAL;
683 }
684
685 if (value < 1 || value > 10) {
686 wl1271_warning("dtim value is not in valid range");
687 return -ERANGE;
688 }
689
690 mutex_lock(&wl->mutex);
691
692 wl->conf.conn.listen_interval = value;
693 /* for some reason there are different event types for 1 and >1 */
694 if (value == 1)
695 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
696 else
697 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
698
699 /*
700 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
701 * take effect on the next time we enter psm.
702 */
703 mutex_unlock(&wl->mutex);
704 return count;
705 }
706
707 static const struct file_operations dtim_interval_ops = {
708 .read = dtim_interval_read,
709 .write = dtim_interval_write,
710 .open = simple_open,
711 .llseek = default_llseek,
712 };
713
714
715
suspend_dtim_interval_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)716 static ssize_t suspend_dtim_interval_read(struct file *file,
717 char __user *user_buf,
718 size_t count, loff_t *ppos)
719 {
720 struct wl1271 *wl = file->private_data;
721 u8 value;
722
723 if (wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
724 wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
725 value = wl->conf.conn.suspend_listen_interval;
726 else
727 value = 0;
728
729 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
730 }
731
suspend_dtim_interval_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)732 static ssize_t suspend_dtim_interval_write(struct file *file,
733 const char __user *user_buf,
734 size_t count, loff_t *ppos)
735 {
736 struct wl1271 *wl = file->private_data;
737 unsigned long value;
738 int ret;
739
740 ret = kstrtoul_from_user(user_buf, count, 10, &value);
741 if (ret < 0) {
742 wl1271_warning("illegal value for suspend_dtim_interval");
743 return -EINVAL;
744 }
745
746 if (value < 1 || value > 10) {
747 wl1271_warning("suspend_dtim value is not in valid range");
748 return -ERANGE;
749 }
750
751 mutex_lock(&wl->mutex);
752
753 wl->conf.conn.suspend_listen_interval = value;
754 /* for some reason there are different event types for 1 and >1 */
755 if (value == 1)
756 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
757 else
758 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
759
760 mutex_unlock(&wl->mutex);
761 return count;
762 }
763
764
765 static const struct file_operations suspend_dtim_interval_ops = {
766 .read = suspend_dtim_interval_read,
767 .write = suspend_dtim_interval_write,
768 .open = simple_open,
769 .llseek = default_llseek,
770 };
771
beacon_interval_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)772 static ssize_t beacon_interval_read(struct file *file, char __user *user_buf,
773 size_t count, loff_t *ppos)
774 {
775 struct wl1271 *wl = file->private_data;
776 u8 value;
777
778 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON ||
779 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS)
780 value = wl->conf.conn.listen_interval;
781 else
782 value = 0;
783
784 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
785 }
786
beacon_interval_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)787 static ssize_t beacon_interval_write(struct file *file,
788 const char __user *user_buf,
789 size_t count, loff_t *ppos)
790 {
791 struct wl1271 *wl = file->private_data;
792 unsigned long value;
793 int ret;
794
795 ret = kstrtoul_from_user(user_buf, count, 10, &value);
796 if (ret < 0) {
797 wl1271_warning("illegal value for beacon_interval");
798 return -EINVAL;
799 }
800
801 if (value < 1 || value > 255) {
802 wl1271_warning("beacon interval value is not in valid range");
803 return -ERANGE;
804 }
805
806 mutex_lock(&wl->mutex);
807
808 wl->conf.conn.listen_interval = value;
809 /* for some reason there are different event types for 1 and >1 */
810 if (value == 1)
811 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON;
812 else
813 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS;
814
815 /*
816 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
817 * take effect on the next time we enter psm.
818 */
819 mutex_unlock(&wl->mutex);
820 return count;
821 }
822
823 static const struct file_operations beacon_interval_ops = {
824 .read = beacon_interval_read,
825 .write = beacon_interval_write,
826 .open = simple_open,
827 .llseek = default_llseek,
828 };
829
rx_streaming_interval_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)830 static ssize_t rx_streaming_interval_write(struct file *file,
831 const char __user *user_buf,
832 size_t count, loff_t *ppos)
833 {
834 struct wl1271 *wl = file->private_data;
835 struct wl12xx_vif *wlvif;
836 unsigned long value;
837 int ret;
838
839 ret = kstrtoul_from_user(user_buf, count, 10, &value);
840 if (ret < 0) {
841 wl1271_warning("illegal value in rx_streaming_interval!");
842 return -EINVAL;
843 }
844
845 /* valid values: 0, 10-100 */
846 if (value && (value < 10 || value > 100)) {
847 wl1271_warning("value is not in range!");
848 return -ERANGE;
849 }
850
851 mutex_lock(&wl->mutex);
852
853 wl->conf.rx_streaming.interval = value;
854
855 ret = pm_runtime_get_sync(wl->dev);
856 if (ret < 0) {
857 pm_runtime_put_noidle(wl->dev);
858 goto out;
859 }
860
861 wl12xx_for_each_wlvif_sta(wl, wlvif) {
862 wl1271_recalc_rx_streaming(wl, wlvif);
863 }
864
865 pm_runtime_mark_last_busy(wl->dev);
866 pm_runtime_put_autosuspend(wl->dev);
867 out:
868 mutex_unlock(&wl->mutex);
869 return count;
870 }
871
rx_streaming_interval_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)872 static ssize_t rx_streaming_interval_read(struct file *file,
873 char __user *userbuf,
874 size_t count, loff_t *ppos)
875 {
876 struct wl1271 *wl = file->private_data;
877 return wl1271_format_buffer(userbuf, count, ppos,
878 "%d\n", wl->conf.rx_streaming.interval);
879 }
880
881 static const struct file_operations rx_streaming_interval_ops = {
882 .read = rx_streaming_interval_read,
883 .write = rx_streaming_interval_write,
884 .open = simple_open,
885 .llseek = default_llseek,
886 };
887
rx_streaming_always_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)888 static ssize_t rx_streaming_always_write(struct file *file,
889 const char __user *user_buf,
890 size_t count, loff_t *ppos)
891 {
892 struct wl1271 *wl = file->private_data;
893 struct wl12xx_vif *wlvif;
894 unsigned long value;
895 int ret;
896
897 ret = kstrtoul_from_user(user_buf, count, 10, &value);
898 if (ret < 0) {
899 wl1271_warning("illegal value in rx_streaming_write!");
900 return -EINVAL;
901 }
902
903 /* valid values: 0, 10-100 */
904 if (!(value == 0 || value == 1)) {
905 wl1271_warning("value is not in valid!");
906 return -EINVAL;
907 }
908
909 mutex_lock(&wl->mutex);
910
911 wl->conf.rx_streaming.always = value;
912
913 ret = pm_runtime_get_sync(wl->dev);
914 if (ret < 0) {
915 pm_runtime_put_noidle(wl->dev);
916 goto out;
917 }
918
919 wl12xx_for_each_wlvif_sta(wl, wlvif) {
920 wl1271_recalc_rx_streaming(wl, wlvif);
921 }
922
923 pm_runtime_mark_last_busy(wl->dev);
924 pm_runtime_put_autosuspend(wl->dev);
925 out:
926 mutex_unlock(&wl->mutex);
927 return count;
928 }
929
rx_streaming_always_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)930 static ssize_t rx_streaming_always_read(struct file *file,
931 char __user *userbuf,
932 size_t count, loff_t *ppos)
933 {
934 struct wl1271 *wl = file->private_data;
935 return wl1271_format_buffer(userbuf, count, ppos,
936 "%d\n", wl->conf.rx_streaming.always);
937 }
938
939 static const struct file_operations rx_streaming_always_ops = {
940 .read = rx_streaming_always_read,
941 .write = rx_streaming_always_write,
942 .open = simple_open,
943 .llseek = default_llseek,
944 };
945
beacon_filtering_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)946 static ssize_t beacon_filtering_write(struct file *file,
947 const char __user *user_buf,
948 size_t count, loff_t *ppos)
949 {
950 struct wl1271 *wl = file->private_data;
951 struct wl12xx_vif *wlvif;
952 unsigned long value;
953 int ret;
954
955 ret = kstrtoul_from_user(user_buf, count, 0, &value);
956 if (ret < 0) {
957 wl1271_warning("illegal value for beacon_filtering!");
958 return -EINVAL;
959 }
960
961 mutex_lock(&wl->mutex);
962
963 ret = pm_runtime_get_sync(wl->dev);
964 if (ret < 0) {
965 pm_runtime_put_noidle(wl->dev);
966 goto out;
967 }
968
969 wl12xx_for_each_wlvif(wl, wlvif) {
970 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value);
971 }
972
973 pm_runtime_mark_last_busy(wl->dev);
974 pm_runtime_put_autosuspend(wl->dev);
975 out:
976 mutex_unlock(&wl->mutex);
977 return count;
978 }
979
980 static const struct file_operations beacon_filtering_ops = {
981 .write = beacon_filtering_write,
982 .open = simple_open,
983 .llseek = default_llseek,
984 };
985
fw_stats_raw_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)986 static ssize_t fw_stats_raw_read(struct file *file,
987 char __user *userbuf,
988 size_t count, loff_t *ppos)
989 {
990 struct wl1271 *wl = file->private_data;
991
992 wl1271_debugfs_update_stats(wl);
993
994 return simple_read_from_buffer(userbuf, count, ppos,
995 wl->stats.fw_stats,
996 wl->stats.fw_stats_len);
997 }
998
999 static const struct file_operations fw_stats_raw_ops = {
1000 .read = fw_stats_raw_read,
1001 .open = simple_open,
1002 .llseek = default_llseek,
1003 };
1004
sleep_auth_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1005 static ssize_t sleep_auth_read(struct file *file, char __user *user_buf,
1006 size_t count, loff_t *ppos)
1007 {
1008 struct wl1271 *wl = file->private_data;
1009
1010 return wl1271_format_buffer(user_buf, count,
1011 ppos, "%d\n",
1012 wl->sleep_auth);
1013 }
1014
sleep_auth_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1015 static ssize_t sleep_auth_write(struct file *file,
1016 const char __user *user_buf,
1017 size_t count, loff_t *ppos)
1018 {
1019 struct wl1271 *wl = file->private_data;
1020 unsigned long value;
1021 int ret;
1022
1023 ret = kstrtoul_from_user(user_buf, count, 0, &value);
1024 if (ret < 0) {
1025 wl1271_warning("illegal value in sleep_auth");
1026 return -EINVAL;
1027 }
1028
1029 if (value > WL1271_PSM_MAX) {
1030 wl1271_warning("sleep_auth must be between 0 and %d",
1031 WL1271_PSM_MAX);
1032 return -ERANGE;
1033 }
1034
1035 mutex_lock(&wl->mutex);
1036
1037 wl->conf.conn.sta_sleep_auth = value;
1038
1039 if (unlikely(wl->state != WLCORE_STATE_ON)) {
1040 /* this will show up on "read" in case we are off */
1041 wl->sleep_auth = value;
1042 goto out;
1043 }
1044
1045 ret = pm_runtime_get_sync(wl->dev);
1046 if (ret < 0) {
1047 pm_runtime_put_noidle(wl->dev);
1048 goto out;
1049 }
1050
1051 ret = wl1271_acx_sleep_auth(wl, value);
1052 if (ret < 0)
1053 goto out_sleep;
1054
1055 out_sleep:
1056 pm_runtime_mark_last_busy(wl->dev);
1057 pm_runtime_put_autosuspend(wl->dev);
1058 out:
1059 mutex_unlock(&wl->mutex);
1060 return count;
1061 }
1062
1063 static const struct file_operations sleep_auth_ops = {
1064 .read = sleep_auth_read,
1065 .write = sleep_auth_write,
1066 .open = simple_open,
1067 .llseek = default_llseek,
1068 };
1069
dev_mem_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1070 static ssize_t dev_mem_read(struct file *file,
1071 char __user *user_buf, size_t count,
1072 loff_t *ppos)
1073 {
1074 struct wl1271 *wl = file->private_data;
1075 struct wlcore_partition_set part, old_part;
1076 size_t bytes = count;
1077 int ret;
1078 char *buf;
1079
1080 /* only requests of dword-aligned size and offset are supported */
1081 if (bytes % 4)
1082 return -EINVAL;
1083
1084 if (*ppos % 4)
1085 return -EINVAL;
1086
1087 /* function should return in reasonable time */
1088 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE);
1089
1090 if (bytes == 0)
1091 return -EINVAL;
1092
1093 memset(&part, 0, sizeof(part));
1094 part.mem.start = *ppos;
1095 part.mem.size = bytes;
1096
1097 buf = kmalloc(bytes, GFP_KERNEL);
1098 if (!buf)
1099 return -ENOMEM;
1100
1101 mutex_lock(&wl->mutex);
1102
1103 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
1104 ret = -EFAULT;
1105 goto skip_read;
1106 }
1107
1108 /*
1109 * Don't fail if elp_wakeup returns an error, so the device's memory
1110 * could be read even if the FW crashed
1111 */
1112 pm_runtime_get_sync(wl->dev);
1113
1114 /* store current partition and switch partition */
1115 memcpy(&old_part, &wl->curr_part, sizeof(old_part));
1116 ret = wlcore_set_partition(wl, &part);
1117 if (ret < 0)
1118 goto part_err;
1119
1120 ret = wlcore_raw_read(wl, 0, buf, bytes, false);
1121 if (ret < 0)
1122 goto read_err;
1123
1124 read_err:
1125 /* recover partition */
1126 ret = wlcore_set_partition(wl, &old_part);
1127 if (ret < 0)
1128 goto part_err;
1129
1130 part_err:
1131 pm_runtime_mark_last_busy(wl->dev);
1132 pm_runtime_put_autosuspend(wl->dev);
1133
1134 skip_read:
1135 mutex_unlock(&wl->mutex);
1136
1137 if (ret == 0) {
1138 ret = copy_to_user(user_buf, buf, bytes);
1139 if (ret < bytes) {
1140 bytes -= ret;
1141 *ppos += bytes;
1142 ret = 0;
1143 } else {
1144 ret = -EFAULT;
1145 }
1146 }
1147
1148 kfree(buf);
1149
1150 return ((ret == 0) ? bytes : ret);
1151 }
1152
dev_mem_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1153 static ssize_t dev_mem_write(struct file *file, const char __user *user_buf,
1154 size_t count, loff_t *ppos)
1155 {
1156 struct wl1271 *wl = file->private_data;
1157 struct wlcore_partition_set part, old_part;
1158 size_t bytes = count;
1159 int ret;
1160 char *buf;
1161
1162 /* only requests of dword-aligned size and offset are supported */
1163 if (bytes % 4)
1164 return -EINVAL;
1165
1166 if (*ppos % 4)
1167 return -EINVAL;
1168
1169 /* function should return in reasonable time */
1170 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE);
1171
1172 if (bytes == 0)
1173 return -EINVAL;
1174
1175 memset(&part, 0, sizeof(part));
1176 part.mem.start = *ppos;
1177 part.mem.size = bytes;
1178
1179 buf = memdup_user(user_buf, bytes);
1180 if (IS_ERR(buf))
1181 return PTR_ERR(buf);
1182
1183 mutex_lock(&wl->mutex);
1184
1185 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
1186 ret = -EFAULT;
1187 goto skip_write;
1188 }
1189
1190 /*
1191 * Don't fail if elp_wakeup returns an error, so the device's memory
1192 * could be read even if the FW crashed
1193 */
1194 pm_runtime_get_sync(wl->dev);
1195
1196 /* store current partition and switch partition */
1197 memcpy(&old_part, &wl->curr_part, sizeof(old_part));
1198 ret = wlcore_set_partition(wl, &part);
1199 if (ret < 0)
1200 goto part_err;
1201
1202 ret = wlcore_raw_write(wl, 0, buf, bytes, false);
1203 if (ret < 0)
1204 goto write_err;
1205
1206 write_err:
1207 /* recover partition */
1208 ret = wlcore_set_partition(wl, &old_part);
1209 if (ret < 0)
1210 goto part_err;
1211
1212 part_err:
1213 pm_runtime_mark_last_busy(wl->dev);
1214 pm_runtime_put_autosuspend(wl->dev);
1215
1216 skip_write:
1217 mutex_unlock(&wl->mutex);
1218
1219 if (ret == 0)
1220 *ppos += bytes;
1221
1222 kfree(buf);
1223
1224 return ((ret == 0) ? bytes : ret);
1225 }
1226
dev_mem_seek(struct file * file,loff_t offset,int orig)1227 static loff_t dev_mem_seek(struct file *file, loff_t offset, int orig)
1228 {
1229 /* only requests of dword-aligned size and offset are supported */
1230 if (offset % 4)
1231 return -EINVAL;
1232
1233 return no_seek_end_llseek(file, offset, orig);
1234 }
1235
1236 static const struct file_operations dev_mem_ops = {
1237 .open = simple_open,
1238 .read = dev_mem_read,
1239 .write = dev_mem_write,
1240 .llseek = dev_mem_seek,
1241 };
1242
fw_logger_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1243 static ssize_t fw_logger_read(struct file *file, char __user *user_buf,
1244 size_t count, loff_t *ppos)
1245 {
1246 struct wl1271 *wl = file->private_data;
1247
1248 return wl1271_format_buffer(user_buf, count,
1249 ppos, "%d\n",
1250 wl->conf.fwlog.output);
1251 }
1252
fw_logger_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1253 static ssize_t fw_logger_write(struct file *file,
1254 const char __user *user_buf,
1255 size_t count, loff_t *ppos)
1256 {
1257 struct wl1271 *wl = file->private_data;
1258 unsigned long value;
1259 int ret;
1260
1261 ret = kstrtoul_from_user(user_buf, count, 0, &value);
1262 if (ret < 0) {
1263 wl1271_warning("illegal value in fw_logger");
1264 return -EINVAL;
1265 }
1266
1267 if ((value > 2) || (value == 0)) {
1268 wl1271_warning("fw_logger value must be 1-UART 2-SDIO");
1269 return -ERANGE;
1270 }
1271
1272 if (wl->conf.fwlog.output == 0) {
1273 wl1271_warning("invalid operation - fw logger disabled by default, please change mode via wlconf");
1274 return -EINVAL;
1275 }
1276
1277 mutex_lock(&wl->mutex);
1278 ret = pm_runtime_get_sync(wl->dev);
1279 if (ret < 0) {
1280 pm_runtime_put_noidle(wl->dev);
1281 count = ret;
1282 goto out;
1283 }
1284
1285 wl->conf.fwlog.output = value;
1286
1287 ret = wl12xx_cmd_config_fwlog(wl);
1288
1289 pm_runtime_mark_last_busy(wl->dev);
1290 pm_runtime_put_autosuspend(wl->dev);
1291
1292 out:
1293 mutex_unlock(&wl->mutex);
1294 return count;
1295 }
1296
1297 static const struct file_operations fw_logger_ops = {
1298 .open = simple_open,
1299 .read = fw_logger_read,
1300 .write = fw_logger_write,
1301 .llseek = default_llseek,
1302 };
1303
wl1271_debugfs_add_files(struct wl1271 * wl,struct dentry * rootdir)1304 static int wl1271_debugfs_add_files(struct wl1271 *wl,
1305 struct dentry *rootdir)
1306 {
1307 int ret = 0;
1308 struct dentry *entry, *streaming;
1309
1310 DEBUGFS_ADD(tx_queue_len, rootdir);
1311 DEBUGFS_ADD(retry_count, rootdir);
1312 DEBUGFS_ADD(excessive_retries, rootdir);
1313
1314 DEBUGFS_ADD(gpio_power, rootdir);
1315 DEBUGFS_ADD(start_recovery, rootdir);
1316 DEBUGFS_ADD(driver_state, rootdir);
1317 DEBUGFS_ADD(vifs_state, rootdir);
1318 DEBUGFS_ADD(dtim_interval, rootdir);
1319 DEBUGFS_ADD(suspend_dtim_interval, rootdir);
1320 DEBUGFS_ADD(beacon_interval, rootdir);
1321 DEBUGFS_ADD(beacon_filtering, rootdir);
1322 DEBUGFS_ADD(dynamic_ps_timeout, rootdir);
1323 DEBUGFS_ADD(forced_ps, rootdir);
1324 DEBUGFS_ADD(split_scan_timeout, rootdir);
1325 DEBUGFS_ADD(irq_pkt_threshold, rootdir);
1326 DEBUGFS_ADD(irq_blk_threshold, rootdir);
1327 DEBUGFS_ADD(irq_timeout, rootdir);
1328 DEBUGFS_ADD(fw_stats_raw, rootdir);
1329 DEBUGFS_ADD(sleep_auth, rootdir);
1330 DEBUGFS_ADD(fw_logger, rootdir);
1331
1332 streaming = debugfs_create_dir("rx_streaming", rootdir);
1333 if (!streaming || IS_ERR(streaming))
1334 goto err;
1335
1336 DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming);
1337 DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming);
1338
1339 DEBUGFS_ADD_PREFIX(dev, mem, rootdir);
1340
1341 return 0;
1342
1343 err:
1344 if (IS_ERR(entry))
1345 ret = PTR_ERR(entry);
1346 else
1347 ret = -ENOMEM;
1348
1349 return ret;
1350 }
1351
wl1271_debugfs_reset(struct wl1271 * wl)1352 void wl1271_debugfs_reset(struct wl1271 *wl)
1353 {
1354 if (!wl->stats.fw_stats)
1355 return;
1356
1357 memset(wl->stats.fw_stats, 0, wl->stats.fw_stats_len);
1358 wl->stats.retry_count = 0;
1359 wl->stats.excessive_retries = 0;
1360 }
1361
wl1271_debugfs_init(struct wl1271 * wl)1362 int wl1271_debugfs_init(struct wl1271 *wl)
1363 {
1364 int ret;
1365 struct dentry *rootdir;
1366
1367 rootdir = debugfs_create_dir(KBUILD_MODNAME,
1368 wl->hw->wiphy->debugfsdir);
1369
1370 if (IS_ERR(rootdir)) {
1371 ret = PTR_ERR(rootdir);
1372 goto out;
1373 }
1374
1375 wl->stats.fw_stats = kzalloc(wl->stats.fw_stats_len, GFP_KERNEL);
1376 if (!wl->stats.fw_stats) {
1377 ret = -ENOMEM;
1378 goto out_remove;
1379 }
1380
1381 wl->stats.fw_stats_update = jiffies;
1382
1383 ret = wl1271_debugfs_add_files(wl, rootdir);
1384 if (ret < 0)
1385 goto out_exit;
1386
1387 ret = wlcore_debugfs_init(wl, rootdir);
1388 if (ret < 0)
1389 goto out_exit;
1390
1391 goto out;
1392
1393 out_exit:
1394 wl1271_debugfs_exit(wl);
1395
1396 out_remove:
1397 debugfs_remove_recursive(rootdir);
1398
1399 out:
1400 return ret;
1401 }
1402
wl1271_debugfs_exit(struct wl1271 * wl)1403 void wl1271_debugfs_exit(struct wl1271 *wl)
1404 {
1405 kfree(wl->stats.fw_stats);
1406 wl->stats.fw_stats = NULL;
1407 }
1408
