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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_HEX(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(platform_quirks);
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 char buf[10];
933 size_t len;
934 unsigned long value;
935 int ret;
936
937 len = min(count, sizeof(buf) - 1);
938 if (copy_from_user(buf, user_buf, len))
939 return -EFAULT;
940 buf[len] = '\0';
941
942 ret = kstrtoul(buf, 0, &value);
943 if (ret < 0) {
944 wl1271_warning("illegal value for beacon_filtering!");
945 return -EINVAL;
946 }
947
948 mutex_lock(&wl->mutex);
949
950 ret = wl1271_ps_elp_wakeup(wl);
951 if (ret < 0)
952 goto out;
953
954 wl12xx_for_each_wlvif(wl, wlvif) {
955 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value);
956 }
957
958 wl1271_ps_elp_sleep(wl);
959out:
960 mutex_unlock(&wl->mutex);
961 return count;
962}
963
964static const struct file_operations beacon_filtering_ops = {
965 .write = beacon_filtering_write,
966 .open = simple_open,
967 .llseek = default_llseek,
968};
969
970static ssize_t fw_stats_raw_read(struct file *file,
971 char __user *userbuf,
972 size_t count, loff_t *ppos)
973{
974 struct wl1271 *wl = file->private_data;
975
976 wl1271_debugfs_update_stats(wl);
977
978 return simple_read_from_buffer(userbuf, count, ppos,
979 wl->stats.fw_stats,
980 wl->stats.fw_stats_len);
981}
982
983static const struct file_operations fw_stats_raw_ops = {
984 .read = fw_stats_raw_read,
985 .open = simple_open,
986 .llseek = default_llseek,
987};
988
989static ssize_t sleep_auth_read(struct file *file, char __user *user_buf,
990 size_t count, loff_t *ppos)
991{
992 struct wl1271 *wl = file->private_data;
993
994 return wl1271_format_buffer(user_buf, count,
995 ppos, "%d\n",
996 wl->sleep_auth);
997}
998
999static ssize_t sleep_auth_write(struct file *file,
1000 const char __user *user_buf,
1001 size_t count, loff_t *ppos)
1002{
1003 struct wl1271 *wl = file->private_data;
1004 unsigned long value;
1005 int ret;
1006
1007 ret = kstrtoul_from_user(user_buf, count, 0, &value);
1008 if (ret < 0) {
1009 wl1271_warning("illegal value in sleep_auth");
1010 return -EINVAL;
1011 }
1012
1013 if (value > WL1271_PSM_MAX) {
1014 wl1271_warning("sleep_auth must be between 0 and %d",
1015 WL1271_PSM_MAX);
1016 return -ERANGE;
1017 }
1018
1019 mutex_lock(&wl->mutex);
1020
1021 wl->conf.conn.sta_sleep_auth = value;
1022
1023 if (unlikely(wl->state != WLCORE_STATE_ON)) {
1024 /* this will show up on "read" in case we are off */
1025 wl->sleep_auth = value;
1026 goto out;
1027 }
1028
1029 ret = wl1271_ps_elp_wakeup(wl);
1030 if (ret < 0)
1031 goto out;
1032
1033 ret = wl1271_acx_sleep_auth(wl, value);
1034 if (ret < 0)
1035 goto out_sleep;
1036
1037out_sleep:
1038 wl1271_ps_elp_sleep(wl);
1039out:
1040 mutex_unlock(&wl->mutex);
1041 return count;
1042}
1043
1044static const struct file_operations sleep_auth_ops = {
1045 .read = sleep_auth_read,
1046 .write = sleep_auth_write,
1047 .open = simple_open,
1048 .llseek = default_llseek,
1049};
1050
1051static ssize_t dev_mem_read(struct file *file,
1052 char __user *user_buf, size_t count,
1053 loff_t *ppos)
1054{
1055 struct wl1271 *wl = file->private_data;
1056 struct wlcore_partition_set part, old_part;
1057 size_t bytes = count;
1058 int ret;
1059 char *buf;
1060
1061 /* only requests of dword-aligned size and offset are supported */
1062 if (bytes % 4)
1063 return -EINVAL;
1064
1065 if (*ppos % 4)
1066 return -EINVAL;
1067
1068 /* function should return in reasonable time */
1069 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE);
1070
1071 if (bytes == 0)
1072 return -EINVAL;
1073
1074 memset(&part, 0, sizeof(part));
1075 part.mem.start = *ppos;
1076 part.mem.size = bytes;
1077
1078 buf = kmalloc(bytes, GFP_KERNEL);
1079 if (!buf)
1080 return -ENOMEM;
1081
1082 mutex_lock(&wl->mutex);
1083
1084 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
1085 ret = -EFAULT;
1086 goto skip_read;
1087 }
1088
1089 /*
1090 * Don't fail if elp_wakeup returns an error, so the device's memory
1091 * could be read even if the FW crashed
1092 */
1093 wl1271_ps_elp_wakeup(wl);
1094
1095 /* store current partition and switch partition */
1096 memcpy(&old_part, &wl->curr_part, sizeof(old_part));
1097 ret = wlcore_set_partition(wl, &part);
1098 if (ret < 0)
1099 goto part_err;
1100
1101 ret = wlcore_raw_read(wl, 0, buf, bytes, false);
1102 if (ret < 0)
1103 goto read_err;
1104
1105read_err:
1106 /* recover partition */
1107 ret = wlcore_set_partition(wl, &old_part);
1108 if (ret < 0)
1109 goto part_err;
1110
1111part_err:
1112 wl1271_ps_elp_sleep(wl);
1113
1114skip_read:
1115 mutex_unlock(&wl->mutex);
1116
1117 if (ret == 0) {
1118 ret = copy_to_user(user_buf, buf, bytes);
1119 if (ret < bytes) {
1120 bytes -= ret;
1121 *ppos += bytes;
1122 ret = 0;
1123 } else {
1124 ret = -EFAULT;
1125 }
1126 }
1127
1128 kfree(buf);
1129
1130 return ((ret == 0) ? bytes : ret);
1131}
1132
1133static ssize_t dev_mem_write(struct file *file, const char __user *user_buf,
1134 size_t count, loff_t *ppos)
1135{
1136 struct wl1271 *wl = file->private_data;
1137 struct wlcore_partition_set part, old_part;
1138 size_t bytes = count;
1139 int ret;
1140 char *buf;
1141
1142 /* only requests of dword-aligned size and offset are supported */
1143 if (bytes % 4)
1144 return -EINVAL;
1145
1146 if (*ppos % 4)
1147 return -EINVAL;
1148
1149 /* function should return in reasonable time */
1150 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE);
1151
1152 if (bytes == 0)
1153 return -EINVAL;
1154
1155 memset(&part, 0, sizeof(part));
1156 part.mem.start = *ppos;
1157 part.mem.size = bytes;
1158
1159 buf = kmalloc(bytes, GFP_KERNEL);
1160 if (!buf)
1161 return -ENOMEM;
1162
1163 ret = copy_from_user(buf, user_buf, bytes);
1164 if (ret) {
1165 ret = -EFAULT;
1166 goto err_out;
1167 }
1168
1169 mutex_lock(&wl->mutex);
1170
1171 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
1172 ret = -EFAULT;
1173 goto skip_write;
1174 }
1175
1176 /*
1177 * Don't fail if elp_wakeup returns an error, so the device's memory
1178 * could be read even if the FW crashed
1179 */
1180 wl1271_ps_elp_wakeup(wl);
1181
1182 /* store current partition and switch partition */
1183 memcpy(&old_part, &wl->curr_part, sizeof(old_part));
1184 ret = wlcore_set_partition(wl, &part);
1185 if (ret < 0)
1186 goto part_err;
1187
1188 ret = wlcore_raw_write(wl, 0, buf, bytes, false);
1189 if (ret < 0)
1190 goto write_err;
1191
1192write_err:
1193 /* recover partition */
1194 ret = wlcore_set_partition(wl, &old_part);
1195 if (ret < 0)
1196 goto part_err;
1197
1198part_err:
1199 wl1271_ps_elp_sleep(wl);
1200
1201skip_write:
1202 mutex_unlock(&wl->mutex);
1203
1204 if (ret == 0)
1205 *ppos += bytes;
1206
1207err_out:
1208 kfree(buf);
1209
1210 return ((ret == 0) ? bytes : ret);
1211}
1212
1213static loff_t dev_mem_seek(struct file *file, loff_t offset, int orig)
1214{
1215 loff_t ret;
1216
1217 /* only requests of dword-aligned size and offset are supported */
1218 if (offset % 4)
1219 return -EINVAL;
1220
1221 switch (orig) {
1222 case SEEK_SET:
1223 file->f_pos = offset;
1224 ret = file->f_pos;
1225 break;
1226 case SEEK_CUR:
1227 file->f_pos += offset;
1228 ret = file->f_pos;
1229 break;
1230 default:
1231 ret = -EINVAL;
1232 }
1233
1234 return ret;
1235}
1236
1237static const struct file_operations dev_mem_ops = {
1238 .open = simple_open,
1239 .read = dev_mem_read,
1240 .write = dev_mem_write,
1241 .llseek = dev_mem_seek,
1242};
1243
1244static int wl1271_debugfs_add_files(struct wl1271 *wl,
1245 struct dentry *rootdir)
1246{
1247 int ret = 0;
1248 struct dentry *entry, *streaming;
1249
1250 DEBUGFS_ADD(tx_queue_len, rootdir);
1251 DEBUGFS_ADD(retry_count, rootdir);
1252 DEBUGFS_ADD(excessive_retries, rootdir);
1253
1254 DEBUGFS_ADD(gpio_power, rootdir);
1255 DEBUGFS_ADD(start_recovery, rootdir);
1256 DEBUGFS_ADD(driver_state, rootdir);
1257 DEBUGFS_ADD(vifs_state, rootdir);
1258 DEBUGFS_ADD(dtim_interval, rootdir);
1259 DEBUGFS_ADD(suspend_dtim_interval, rootdir);
1260 DEBUGFS_ADD(beacon_interval, rootdir);
1261 DEBUGFS_ADD(beacon_filtering, rootdir);
1262 DEBUGFS_ADD(dynamic_ps_timeout, rootdir);
1263 DEBUGFS_ADD(forced_ps, rootdir);
1264 DEBUGFS_ADD(split_scan_timeout, rootdir);
1265 DEBUGFS_ADD(irq_pkt_threshold, rootdir);
1266 DEBUGFS_ADD(irq_blk_threshold, rootdir);
1267 DEBUGFS_ADD(irq_timeout, rootdir);
1268 DEBUGFS_ADD(fw_stats_raw, rootdir);
1269 DEBUGFS_ADD(sleep_auth, rootdir);
1270
1271 streaming = debugfs_create_dir("rx_streaming", rootdir);
1272 if (!streaming || IS_ERR(streaming))
1273 goto err;
1274
1275 DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming);
1276 DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming);
1277
1278 DEBUGFS_ADD_PREFIX(dev, mem, rootdir);
1279
1280 return 0;
1281
1282err:
1283 if (IS_ERR(entry))
1284 ret = PTR_ERR(entry);
1285 else
1286 ret = -ENOMEM;
1287
1288 return ret;
1289}
1290
1291void wl1271_debugfs_reset(struct wl1271 *wl)
1292{
1293 if (!wl->stats.fw_stats)
1294 return;
1295
1296 memset(wl->stats.fw_stats, 0, wl->stats.fw_stats_len);
1297 wl->stats.retry_count = 0;
1298 wl->stats.excessive_retries = 0;
1299}
1300
1301int wl1271_debugfs_init(struct wl1271 *wl)
1302{
1303 int ret;
1304 struct dentry *rootdir;
1305
1306 rootdir = debugfs_create_dir(KBUILD_MODNAME,
1307 wl->hw->wiphy->debugfsdir);
1308
1309 if (IS_ERR(rootdir)) {
1310 ret = PTR_ERR(rootdir);
1311 goto out;
1312 }
1313
1314 wl->stats.fw_stats = kzalloc(wl->stats.fw_stats_len, GFP_KERNEL);
1315 if (!wl->stats.fw_stats) {
1316 ret = -ENOMEM;
1317 goto out_remove;
1318 }
1319
1320 wl->stats.fw_stats_update = jiffies;
1321
1322 ret = wl1271_debugfs_add_files(wl, rootdir);
1323 if (ret < 0)
1324 goto out_exit;
1325
1326 ret = wlcore_debugfs_init(wl, rootdir);
1327 if (ret < 0)
1328 goto out_exit;
1329
1330 goto out;
1331
1332out_exit:
1333 wl1271_debugfs_exit(wl);
1334
1335out_remove:
1336 debugfs_remove_recursive(rootdir);
1337
1338out:
1339 return ret;
1340}
1341
1342void wl1271_debugfs_exit(struct wl1271 *wl)
1343{
1344 kfree(wl->stats.fw_stats);
1345 wl->stats.fw_stats = NULL;
1346}