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Linux 3.11-rc3
[cris-mirror.git] / drivers / net / wireless / ti / wlcore / debugfs.c
blobe17630c2a84948d40bb5d0f2c05f4ce1e8ccea2c
1 /*
2 * This file is part of wl1271
3 *
4 * Copyright (C) 2009 Nokia Corporation
5 *
6 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23
24 #include "debugfs.h"
25
26 #include <linux/skbuff.h>
27 #include <linux/slab.h>
28 #include <linux/module.h>
29
30 #include "wlcore.h"
31 #include "debug.h"
32 #include "acx.h"
33 #include "ps.h"
34 #include "io.h"
35 #include "tx.h"
36 #include "hw_ops.h"
37
38 /* ms */
39 #define WL1271_DEBUGFS_STATS_LIFETIME 1000
40
41 #define WLCORE_MAX_BLOCK_SIZE ((size_t)(4*PAGE_SIZE))
42
43 /* debugfs macros idea from mac80211 */
44 int wl1271_format_buffer(char __user *userbuf, size_t count,
45 loff_t *ppos, char *fmt, ...)
46 {
47 va_list args;
48 char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
49 int res;
50
51 va_start(args, fmt);
52 res = vscnprintf(buf, sizeof(buf), fmt, args);
53 va_end(args);
54
55 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
56 }
57 EXPORT_SYMBOL_GPL(wl1271_format_buffer);
58
59 void wl1271_debugfs_update_stats(struct wl1271 *wl)
60 {
61 int ret;
62
63 mutex_lock(&wl->mutex);
64
65 if (unlikely(wl->state != WLCORE_STATE_ON))
66 goto out;
67
68 ret = wl1271_ps_elp_wakeup(wl);
69 if (ret < 0)
70 goto out;
71
72 if (!wl->plt &&
73 time_after(jiffies, wl->stats.fw_stats_update +
74 msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) {
75 wl1271_acx_statistics(wl, wl->stats.fw_stats);
76 wl->stats.fw_stats_update = jiffies;
77 }
78
79 wl1271_ps_elp_sleep(wl);
80
81 out:
82 mutex_unlock(&wl->mutex);
83 }
84 EXPORT_SYMBOL_GPL(wl1271_debugfs_update_stats);
85
86 DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
87 DEBUGFS_READONLY_FILE(excessive_retries, "%u",
88 wl->stats.excessive_retries);
89
90 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
91 size_t count, loff_t *ppos)
92 {
93 struct wl1271 *wl = file->private_data;
94 u32 queue_len;
95 char buf[20];
96 int res;
97
98 queue_len = wl1271_tx_total_queue_count(wl);
99
100 res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
101 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
102 }
103
104 static const struct file_operations tx_queue_len_ops = {
105 .read = tx_queue_len_read,
106 .open = simple_open,
107 .llseek = default_llseek,
108 };
109
110 static void chip_op_handler(struct wl1271 *wl, unsigned long value,
111 void *arg)
112 {
113 int ret;
114 int (*chip_op) (struct wl1271 *wl);
115
116 if (!arg) {
117 wl1271_warning("debugfs chip_op_handler with no callback");
118 return;
119 }
120
121 ret = wl1271_ps_elp_wakeup(wl);
122 if (ret < 0)
123 return;
124
125 chip_op = arg;
126 chip_op(wl);
127
128 wl1271_ps_elp_sleep(wl);
129 }
130
131
132 static inline void no_write_handler(struct wl1271 *wl,
133 unsigned long value,
134 unsigned long param)
135 {
136 }
137
138 #define WL12XX_CONF_DEBUGFS(param, conf_sub_struct, \
139 min_val, max_val, write_handler_locked, \
140 write_handler_arg) \
141 static ssize_t param##_read(struct file *file, \
142 char __user *user_buf, \
143 size_t count, loff_t *ppos) \
144 { \
145 struct wl1271 *wl = file->private_data; \
146 return wl1271_format_buffer(user_buf, count, \
147 ppos, "%d\n", \
148 wl->conf.conf_sub_struct.param); \
149 } \
150 \
151 static ssize_t param##_write(struct file *file, \
152 const char __user *user_buf, \
153 size_t count, loff_t *ppos) \
154 { \
155 struct wl1271 *wl = file->private_data; \
156 unsigned long value; \
157 int ret; \
158 \
159 ret = kstrtoul_from_user(user_buf, count, 10, &value); \
160 if (ret < 0) { \
161 wl1271_warning("illegal value for " #param); \
162 return -EINVAL; \
163 } \
164 \
165 if (value < min_val || value > max_val) { \
166 wl1271_warning(#param " is not in valid range"); \
167 return -ERANGE; \
168 } \
169 \
170 mutex_lock(&wl->mutex); \
171 wl->conf.conf_sub_struct.param = value; \
172 \
173 write_handler_locked(wl, value, write_handler_arg); \
174 \
175 mutex_unlock(&wl->mutex); \
176 return count; \
177 } \
178 \
179 static const struct file_operations param##_ops = { \
180 .read = param##_read, \
181 .write = param##_write, \
182 .open = simple_open, \
183 .llseek = default_llseek, \
184 };
185
186 WL12XX_CONF_DEBUGFS(irq_pkt_threshold, rx, 0, 65535,
187 chip_op_handler, wl1271_acx_init_rx_interrupt)
188 WL12XX_CONF_DEBUGFS(irq_blk_threshold, rx, 0, 65535,
189 chip_op_handler, wl1271_acx_init_rx_interrupt)
190 WL12XX_CONF_DEBUGFS(irq_timeout, rx, 0, 100,
191 chip_op_handler, wl1271_acx_init_rx_interrupt)
192
193 static ssize_t gpio_power_read(struct file *file, char __user *user_buf,
194 size_t count, loff_t *ppos)
195 {
196 struct wl1271 *wl = file->private_data;
197 bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
198
199 int res;
200 char buf[10];
201
202 res = scnprintf(buf, sizeof(buf), "%d\n", state);
203
204 return simple_read_from_buffer(user_buf, count, ppos, buf, res);
205 }
206
207 static ssize_t gpio_power_write(struct file *file,
208 const char __user *user_buf,
209 size_t count, loff_t *ppos)
210 {
211 struct wl1271 *wl = file->private_data;
212 unsigned long value;
213 int ret;
214
215 ret = kstrtoul_from_user(user_buf, count, 10, &value);
216 if (ret < 0) {
217 wl1271_warning("illegal value in gpio_power");
218 return -EINVAL;
219 }
220
221 mutex_lock(&wl->mutex);
222
223 if (value)
224 wl1271_power_on(wl);
225 else
226 wl1271_power_off(wl);
227
228 mutex_unlock(&wl->mutex);
229 return count;
230 }
231
232 static const struct file_operations gpio_power_ops = {
233 .read = gpio_power_read,
234 .write = gpio_power_write,
235 .open = simple_open,
236 .llseek = default_llseek,
237 };
238
239 static ssize_t start_recovery_write(struct file *file,
240 const char __user *user_buf,
241 size_t count, loff_t *ppos)
242 {
243 struct wl1271 *wl = file->private_data;
244
245 mutex_lock(&wl->mutex);
246 wl12xx_queue_recovery_work(wl);
247 mutex_unlock(&wl->mutex);
248
249 return count;
250 }
251
252 static const struct file_operations start_recovery_ops = {
253 .write = start_recovery_write,
254 .open = simple_open,
255 .llseek = default_llseek,
256 };
257
258 static ssize_t dynamic_ps_timeout_read(struct file *file, char __user *user_buf,
259 size_t count, loff_t *ppos)
260 {
261 struct wl1271 *wl = file->private_data;
262
263 return wl1271_format_buffer(user_buf, count,
264 ppos, "%d\n",
265 wl->conf.conn.dynamic_ps_timeout);
266 }
267
268 static ssize_t dynamic_ps_timeout_write(struct file *file,
269 const char __user *user_buf,
270 size_t count, loff_t *ppos)
271 {
272 struct wl1271 *wl = file->private_data;
273 struct wl12xx_vif *wlvif;
274 unsigned long value;
275 int ret;
276
277 ret = kstrtoul_from_user(user_buf, count, 10, &value);
278 if (ret < 0) {
279 wl1271_warning("illegal value in dynamic_ps");
280 return -EINVAL;
281 }
282
283 if (value < 1 || value > 65535) {
284 wl1271_warning("dyanmic_ps_timeout is not in valid range");
285 return -ERANGE;
286 }
287
288 mutex_lock(&wl->mutex);
289
290 wl->conf.conn.dynamic_ps_timeout = value;
291
292 if (unlikely(wl->state != WLCORE_STATE_ON))
293 goto out;
294
295 ret = wl1271_ps_elp_wakeup(wl);
296 if (ret < 0)
297 goto out;
298
299 /* In case we're already in PSM, trigger it again to set new timeout
300 * immediately without waiting for re-association
301 */
302
303 wl12xx_for_each_wlvif_sta(wl, wlvif) {
304 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
305 wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE);
306 }
307
308 wl1271_ps_elp_sleep(wl);
309
310 out:
311 mutex_unlock(&wl->mutex);
312 return count;
313 }
314
315 static const struct file_operations dynamic_ps_timeout_ops = {
316 .read = dynamic_ps_timeout_read,
317 .write = dynamic_ps_timeout_write,
318 .open = simple_open,
319 .llseek = default_llseek,
320 };
321
322 static ssize_t forced_ps_read(struct file *file, char __user *user_buf,
323 size_t count, loff_t *ppos)
324 {
325 struct wl1271 *wl = file->private_data;
326
327 return wl1271_format_buffer(user_buf, count,
328 ppos, "%d\n",
329 wl->conf.conn.forced_ps);
330 }
331
332 static ssize_t forced_ps_write(struct file *file,
333 const char __user *user_buf,
334 size_t count, loff_t *ppos)
335 {
336 struct wl1271 *wl = file->private_data;
337 struct wl12xx_vif *wlvif;
338 unsigned long value;
339 int ret, ps_mode;
340
341 ret = kstrtoul_from_user(user_buf, count, 10, &value);
342 if (ret < 0) {
343 wl1271_warning("illegal value in forced_ps");
344 return -EINVAL;
345 }
346
347 if (value != 1 && value != 0) {
348 wl1271_warning("forced_ps should be either 0 or 1");
349 return -ERANGE;
350 }
351
352 mutex_lock(&wl->mutex);
353
354 if (wl->conf.conn.forced_ps == value)
355 goto out;
356
357 wl->conf.conn.forced_ps = value;
358
359 if (unlikely(wl->state != WLCORE_STATE_ON))
360 goto out;
361
362 ret = wl1271_ps_elp_wakeup(wl);
363 if (ret < 0)
364 goto out;
365
366 /* In case we're already in PSM, trigger it again to switch mode
367 * immediately without waiting for re-association
368 */
369
370 ps_mode = value ? STATION_POWER_SAVE_MODE : STATION_AUTO_PS_MODE;
371
372 wl12xx_for_each_wlvif_sta(wl, wlvif) {
373 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
374 wl1271_ps_set_mode(wl, wlvif, ps_mode);
375 }
376
377 wl1271_ps_elp_sleep(wl);
378
379 out:
380 mutex_unlock(&wl->mutex);
381 return count;
382 }
383
384 static const struct file_operations forced_ps_ops = {
385 .read = forced_ps_read,
386 .write = forced_ps_write,
387 .open = simple_open,
388 .llseek = default_llseek,
389 };
390
391 static ssize_t split_scan_timeout_read(struct file *file, char __user *user_buf,
392 size_t count, loff_t *ppos)
393 {
394 struct wl1271 *wl = file->private_data;
395
396 return wl1271_format_buffer(user_buf, count,
397 ppos, "%d\n",
398 wl->conf.scan.split_scan_timeout / 1000);
399 }
400
401 static ssize_t split_scan_timeout_write(struct file *file,
402 const char __user *user_buf,
403 size_t count, loff_t *ppos)
404 {
405 struct wl1271 *wl = file->private_data;
406 unsigned long value;
407 int ret;
408
409 ret = kstrtoul_from_user(user_buf, count, 10, &value);
410 if (ret < 0) {
411 wl1271_warning("illegal value in split_scan_timeout");
412 return -EINVAL;
413 }
414
415 if (value == 0)
416 wl1271_info("split scan will be disabled");
417
418 mutex_lock(&wl->mutex);
419
420 wl->conf.scan.split_scan_timeout = value * 1000;
421
422 mutex_unlock(&wl->mutex);
423 return count;
424 }
425
426 static const struct file_operations split_scan_timeout_ops = {
427 .read = split_scan_timeout_read,
428 .write = split_scan_timeout_write,
429 .open = simple_open,
430 .llseek = default_llseek,
431 };
432
433 static ssize_t driver_state_read(struct file *file, char __user *user_buf,
434 size_t count, loff_t *ppos)
435 {
436 struct wl1271 *wl = file->private_data;
437 int res = 0;
438 ssize_t ret;
439 char *buf;
440
441 #define DRIVER_STATE_BUF_LEN 1024
442
443 buf = kmalloc(DRIVER_STATE_BUF_LEN, GFP_KERNEL);
444 if (!buf)
445 return -ENOMEM;
446
447 mutex_lock(&wl->mutex);
448
449 #define DRIVER_STATE_PRINT(x, fmt) \
450 (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\
451 #x " = " fmt "\n", wl->x))
452
453 #define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld")
454 #define DRIVER_STATE_PRINT_INT(x) DRIVER_STATE_PRINT(x, "%d")
455 #define DRIVER_STATE_PRINT_STR(x) DRIVER_STATE_PRINT(x, "%s")
456 #define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx")
457 #define DRIVER_STATE_PRINT_HEX(x) DRIVER_STATE_PRINT(x, "0x%x")
458
459 DRIVER_STATE_PRINT_INT(tx_blocks_available);
460 DRIVER_STATE_PRINT_INT(tx_allocated_blocks);
461 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]);
462 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]);
463 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]);
464 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]);
465 DRIVER_STATE_PRINT_INT(tx_frames_cnt);
466 DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]);
467 DRIVER_STATE_PRINT_INT(tx_queue_count[0]);
468 DRIVER_STATE_PRINT_INT(tx_queue_count[1]);
469 DRIVER_STATE_PRINT_INT(tx_queue_count[2]);
470 DRIVER_STATE_PRINT_INT(tx_queue_count[3]);
471 DRIVER_STATE_PRINT_INT(tx_packets_count);
472 DRIVER_STATE_PRINT_INT(tx_results_count);
473 DRIVER_STATE_PRINT_LHEX(flags);
474 DRIVER_STATE_PRINT_INT(tx_blocks_freed);
475 DRIVER_STATE_PRINT_INT(rx_counter);
476 DRIVER_STATE_PRINT_INT(state);
477 DRIVER_STATE_PRINT_INT(channel);
478 DRIVER_STATE_PRINT_INT(band);
479 DRIVER_STATE_PRINT_INT(power_level);
480 DRIVER_STATE_PRINT_INT(sg_enabled);
481 DRIVER_STATE_PRINT_INT(enable_11a);
482 DRIVER_STATE_PRINT_INT(noise);
483 DRIVER_STATE_PRINT_HEX(ap_fw_ps_map);
484 DRIVER_STATE_PRINT_LHEX(ap_ps_map);
485 DRIVER_STATE_PRINT_HEX(quirks);
486 DRIVER_STATE_PRINT_HEX(irq);
487 /* TODO: ref_clock and tcxo_clock were moved to wl12xx priv */
488 DRIVER_STATE_PRINT_HEX(hw_pg_ver);
489 DRIVER_STATE_PRINT_HEX(platform_quirks);
490 DRIVER_STATE_PRINT_HEX(chip.id);
491 DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
492 DRIVER_STATE_PRINT_STR(chip.phy_fw_ver_str);
493 DRIVER_STATE_PRINT_INT(recovery_count);
494
495 #undef DRIVER_STATE_PRINT_INT
496 #undef DRIVER_STATE_PRINT_LONG
497 #undef DRIVER_STATE_PRINT_HEX
498 #undef DRIVER_STATE_PRINT_LHEX
499 #undef DRIVER_STATE_PRINT_STR
500 #undef DRIVER_STATE_PRINT
501 #undef DRIVER_STATE_BUF_LEN
502
503 mutex_unlock(&wl->mutex);
504
505 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
506 kfree(buf);
507 return ret;
508 }
509
510 static const struct file_operations driver_state_ops = {
511 .read = driver_state_read,
512 .open = simple_open,
513 .llseek = default_llseek,
514 };
515
516 static ssize_t vifs_state_read(struct file *file, char __user *user_buf,
517 size_t count, loff_t *ppos)
518 {
519 struct wl1271 *wl = file->private_data;
520 struct wl12xx_vif *wlvif;
521 int ret, res = 0;
522 const int buf_size = 4096;
523 char *buf;
524 char tmp_buf[64];
525
526 buf = kzalloc(buf_size, GFP_KERNEL);
527 if (!buf)
528 return -ENOMEM;
529
530 mutex_lock(&wl->mutex);
531
532 #define VIF_STATE_PRINT(x, fmt) \
533 (res += scnprintf(buf + res, buf_size - res, \
534 #x " = " fmt "\n", wlvif->x))
535
536 #define VIF_STATE_PRINT_LONG(x) VIF_STATE_PRINT(x, "%ld")
537 #define VIF_STATE_PRINT_INT(x) VIF_STATE_PRINT(x, "%d")
538 #define VIF_STATE_PRINT_STR(x) VIF_STATE_PRINT(x, "%s")
539 #define VIF_STATE_PRINT_LHEX(x) VIF_STATE_PRINT(x, "0x%lx")
540 #define VIF_STATE_PRINT_LLHEX(x) VIF_STATE_PRINT(x, "0x%llx")
541 #define VIF_STATE_PRINT_HEX(x) VIF_STATE_PRINT(x, "0x%x")
542
543 #define VIF_STATE_PRINT_NSTR(x, len) \
544 do { \
545 memset(tmp_buf, 0, sizeof(tmp_buf)); \
546 memcpy(tmp_buf, wlvif->x, \
547 min_t(u8, len, sizeof(tmp_buf) - 1)); \
548 res += scnprintf(buf + res, buf_size - res, \
549 #x " = %s\n", tmp_buf); \
550 } while (0)
551
552 wl12xx_for_each_wlvif(wl, wlvif) {
553 VIF_STATE_PRINT_INT(role_id);
554 VIF_STATE_PRINT_INT(bss_type);
555 VIF_STATE_PRINT_LHEX(flags);
556 VIF_STATE_PRINT_INT(p2p);
557 VIF_STATE_PRINT_INT(dev_role_id);
558 VIF_STATE_PRINT_INT(dev_hlid);
559
560 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
561 wlvif->bss_type == BSS_TYPE_IBSS) {
562 VIF_STATE_PRINT_INT(sta.hlid);
563 VIF_STATE_PRINT_INT(sta.basic_rate_idx);
564 VIF_STATE_PRINT_INT(sta.ap_rate_idx);
565 VIF_STATE_PRINT_INT(sta.p2p_rate_idx);
566 VIF_STATE_PRINT_INT(sta.qos);
567 } else {
568 VIF_STATE_PRINT_INT(ap.global_hlid);
569 VIF_STATE_PRINT_INT(ap.bcast_hlid);
570 VIF_STATE_PRINT_LHEX(ap.sta_hlid_map[0]);
571 VIF_STATE_PRINT_INT(ap.mgmt_rate_idx);
572 VIF_STATE_PRINT_INT(ap.bcast_rate_idx);
573 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[0]);
574 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[1]);
575 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[2]);
576 VIF_STATE_PRINT_INT(ap.ucast_rate_idx[3]);
577 }
578 VIF_STATE_PRINT_INT(last_tx_hlid);
579 VIF_STATE_PRINT_INT(tx_queue_count[0]);
580 VIF_STATE_PRINT_INT(tx_queue_count[1]);
581 VIF_STATE_PRINT_INT(tx_queue_count[2]);
582 VIF_STATE_PRINT_INT(tx_queue_count[3]);
583 VIF_STATE_PRINT_LHEX(links_map[0]);
584 VIF_STATE_PRINT_NSTR(ssid, wlvif->ssid_len);
585 VIF_STATE_PRINT_INT(band);
586 VIF_STATE_PRINT_INT(channel);
587 VIF_STATE_PRINT_HEX(bitrate_masks[0]);
588 VIF_STATE_PRINT_HEX(bitrate_masks[1]);
589 VIF_STATE_PRINT_HEX(basic_rate_set);
590 VIF_STATE_PRINT_HEX(basic_rate);
591 VIF_STATE_PRINT_HEX(rate_set);
592 VIF_STATE_PRINT_INT(beacon_int);
593 VIF_STATE_PRINT_INT(default_key);
594 VIF_STATE_PRINT_INT(aid);
595 VIF_STATE_PRINT_INT(psm_entry_retry);
596 VIF_STATE_PRINT_INT(power_level);
597 VIF_STATE_PRINT_INT(rssi_thold);
598 VIF_STATE_PRINT_INT(last_rssi_event);
599 VIF_STATE_PRINT_INT(ba_support);
600 VIF_STATE_PRINT_INT(ba_allowed);
601 VIF_STATE_PRINT_LLHEX(total_freed_pkts);
602 }
603
604 #undef VIF_STATE_PRINT_INT
605 #undef VIF_STATE_PRINT_LONG
606 #undef VIF_STATE_PRINT_HEX
607 #undef VIF_STATE_PRINT_LHEX
608 #undef VIF_STATE_PRINT_LLHEX
609 #undef VIF_STATE_PRINT_STR
610 #undef VIF_STATE_PRINT_NSTR
611 #undef VIF_STATE_PRINT
612
613 mutex_unlock(&wl->mutex);
614
615 ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
616 kfree(buf);
617 return ret;
618 }
619
620 static const struct file_operations vifs_state_ops = {
621 .read = vifs_state_read,
622 .open = simple_open,
623 .llseek = default_llseek,
624 };
625
626 static ssize_t dtim_interval_read(struct file *file, char __user *user_buf,
627 size_t count, loff_t *ppos)
628 {
629 struct wl1271 *wl = file->private_data;
630 u8 value;
631
632 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
633 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
634 value = wl->conf.conn.listen_interval;
635 else
636 value = 0;
637
638 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
639 }
640
641 static ssize_t dtim_interval_write(struct file *file,
642 const char __user *user_buf,
643 size_t count, loff_t *ppos)
644 {
645 struct wl1271 *wl = file->private_data;
646 unsigned long value;
647 int ret;
648
649 ret = kstrtoul_from_user(user_buf, count, 10, &value);
650 if (ret < 0) {
651 wl1271_warning("illegal value for dtim_interval");
652 return -EINVAL;
653 }
654
655 if (value < 1 || value > 10) {
656 wl1271_warning("dtim value is not in valid range");
657 return -ERANGE;
658 }
659
660 mutex_lock(&wl->mutex);
661
662 wl->conf.conn.listen_interval = value;
663 /* for some reason there are different event types for 1 and >1 */
664 if (value == 1)
665 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
666 else
667 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
668
669 /*
670 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
671 * take effect on the next time we enter psm.
672 */
673 mutex_unlock(&wl->mutex);
674 return count;
675 }
676
677 static const struct file_operations dtim_interval_ops = {
678 .read = dtim_interval_read,
679 .write = dtim_interval_write,
680 .open = simple_open,
681 .llseek = default_llseek,
682 };
683
684
685
686 static ssize_t suspend_dtim_interval_read(struct file *file,
687 char __user *user_buf,
688 size_t count, loff_t *ppos)
689 {
690 struct wl1271 *wl = file->private_data;
691 u8 value;
692
693 if (wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
694 wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
695 value = wl->conf.conn.suspend_listen_interval;
696 else
697 value = 0;
698
699 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
700 }
701
702 static ssize_t suspend_dtim_interval_write(struct file *file,
703 const char __user *user_buf,
704 size_t count, loff_t *ppos)
705 {
706 struct wl1271 *wl = file->private_data;
707 unsigned long value;
708 int ret;
709
710 ret = kstrtoul_from_user(user_buf, count, 10, &value);
711 if (ret < 0) {
712 wl1271_warning("illegal value for suspend_dtim_interval");
713 return -EINVAL;
714 }
715
716 if (value < 1 || value > 10) {
717 wl1271_warning("suspend_dtim value is not in valid range");
718 return -ERANGE;
719 }
720
721 mutex_lock(&wl->mutex);
722
723 wl->conf.conn.suspend_listen_interval = value;
724 /* for some reason there are different event types for 1 and >1 */
725 if (value == 1)
726 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
727 else
728 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
729
730 mutex_unlock(&wl->mutex);
731 return count;
732 }
733
734
735 static const struct file_operations suspend_dtim_interval_ops = {
736 .read = suspend_dtim_interval_read,
737 .write = suspend_dtim_interval_write,
738 .open = simple_open,
739 .llseek = default_llseek,
740 };
741
742 static ssize_t beacon_interval_read(struct file *file, char __user *user_buf,
743 size_t count, loff_t *ppos)
744 {
745 struct wl1271 *wl = file->private_data;
746 u8 value;
747
748 if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON ||
749 wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS)
750 value = wl->conf.conn.listen_interval;
751 else
752 value = 0;
753
754 return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
755 }
756
757 static ssize_t beacon_interval_write(struct file *file,
758 const char __user *user_buf,
759 size_t count, loff_t *ppos)
760 {
761 struct wl1271 *wl = file->private_data;
762 unsigned long value;
763 int ret;
764
765 ret = kstrtoul_from_user(user_buf, count, 10, &value);
766 if (ret < 0) {
767 wl1271_warning("illegal value for beacon_interval");
768 return -EINVAL;
769 }
770
771 if (value < 1 || value > 255) {
772 wl1271_warning("beacon interval value is not in valid range");
773 return -ERANGE;
774 }
775
776 mutex_lock(&wl->mutex);
777
778 wl->conf.conn.listen_interval = value;
779 /* for some reason there are different event types for 1 and >1 */
780 if (value == 1)
781 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON;
782 else
783 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS;
784
785 /*
786 * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
787 * take effect on the next time we enter psm.
788 */
789 mutex_unlock(&wl->mutex);
790 return count;
791 }
792
793 static const struct file_operations beacon_interval_ops = {
794 .read = beacon_interval_read,
795 .write = beacon_interval_write,
796 .open = simple_open,
797 .llseek = default_llseek,
798 };
799
800 static ssize_t rx_streaming_interval_write(struct file *file,
801 const char __user *user_buf,
802 size_t count, loff_t *ppos)
803 {
804 struct wl1271 *wl = file->private_data;
805 struct wl12xx_vif *wlvif;
806 unsigned long value;
807 int ret;
808
809 ret = kstrtoul_from_user(user_buf, count, 10, &value);
810 if (ret < 0) {
811 wl1271_warning("illegal value in rx_streaming_interval!");
812 return -EINVAL;
813 }
814
815 /* valid values: 0, 10-100 */
816 if (value && (value < 10 || value > 100)) {
817 wl1271_warning("value is not in range!");
818 return -ERANGE;
819 }
820
821 mutex_lock(&wl->mutex);
822
823 wl->conf.rx_streaming.interval = value;
824
825 ret = wl1271_ps_elp_wakeup(wl);
826 if (ret < 0)
827 goto out;
828
829 wl12xx_for_each_wlvif_sta(wl, wlvif) {
830 wl1271_recalc_rx_streaming(wl, wlvif);
831 }
832
833 wl1271_ps_elp_sleep(wl);
834 out:
835 mutex_unlock(&wl->mutex);
836 return count;
837 }
838
839 static ssize_t rx_streaming_interval_read(struct file *file,
840 char __user *userbuf,
841 size_t count, loff_t *ppos)
842 {
843 struct wl1271 *wl = file->private_data;
844 return wl1271_format_buffer(userbuf, count, ppos,
845 "%d\n", wl->conf.rx_streaming.interval);
846 }
847
848 static const struct file_operations rx_streaming_interval_ops = {
849 .read = rx_streaming_interval_read,
850 .write = rx_streaming_interval_write,
851 .open = simple_open,
852 .llseek = default_llseek,
853 };
854
855 static ssize_t rx_streaming_always_write(struct file *file,
856 const char __user *user_buf,
857 size_t count, loff_t *ppos)
858 {
859 struct wl1271 *wl = file->private_data;
860 struct wl12xx_vif *wlvif;
861 unsigned long value;
862 int ret;
863
864 ret = kstrtoul_from_user(user_buf, count, 10, &value);
865 if (ret < 0) {
866 wl1271_warning("illegal value in rx_streaming_write!");
867 return -EINVAL;
868 }
869
870 /* valid values: 0, 10-100 */
871 if (!(value == 0 || value == 1)) {
872 wl1271_warning("value is not in valid!");
873 return -EINVAL;
874 }
875
876 mutex_lock(&wl->mutex);
877
878 wl->conf.rx_streaming.always = value;
879
880 ret = wl1271_ps_elp_wakeup(wl);
881 if (ret < 0)
882 goto out;
883
884 wl12xx_for_each_wlvif_sta(wl, wlvif) {
885 wl1271_recalc_rx_streaming(wl, wlvif);
886 }
887
888 wl1271_ps_elp_sleep(wl);
889 out:
890 mutex_unlock(&wl->mutex);
891 return count;
892 }
893
894 static ssize_t rx_streaming_always_read(struct file *file,
895 char __user *userbuf,
896 size_t count, loff_t *ppos)
897 {
898 struct wl1271 *wl = file->private_data;
899 return wl1271_format_buffer(userbuf, count, ppos,
900 "%d\n", wl->conf.rx_streaming.always);
901 }
902
903 static const struct file_operations rx_streaming_always_ops = {
904 .read = rx_streaming_always_read,
905 .write = rx_streaming_always_write,
906 .open = simple_open,
907 .llseek = default_llseek,
908 };
909
910 static ssize_t beacon_filtering_write(struct file *file,
911 const char __user *user_buf,
912 size_t count, loff_t *ppos)
913 {
914 struct wl1271 *wl = file->private_data;
915 struct wl12xx_vif *wlvif;
916 char buf[10];
917 size_t len;
918 unsigned long value;
919 int ret;
920
921 len = min(count, sizeof(buf) - 1);
922 if (copy_from_user(buf, user_buf, len))
923 return -EFAULT;
924 buf[len] = '\0';
925
926 ret = kstrtoul(buf, 0, &value);
927 if (ret < 0) {
928 wl1271_warning("illegal value for beacon_filtering!");
929 return -EINVAL;
930 }
931
932 mutex_lock(&wl->mutex);
933
934 ret = wl1271_ps_elp_wakeup(wl);
935 if (ret < 0)
936 goto out;
937
938 wl12xx_for_each_wlvif(wl, wlvif) {
939 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value);
940 }
941
942 wl1271_ps_elp_sleep(wl);
943 out:
944 mutex_unlock(&wl->mutex);
945 return count;
946 }
947
948 static const struct file_operations beacon_filtering_ops = {
949 .write = beacon_filtering_write,
950 .open = simple_open,
951 .llseek = default_llseek,
952 };
953
954 static ssize_t fw_stats_raw_read(struct file *file,
955 char __user *userbuf,
956 size_t count, loff_t *ppos)
957 {
958 struct wl1271 *wl = file->private_data;
959
960 wl1271_debugfs_update_stats(wl);
961
962 return simple_read_from_buffer(userbuf, count, ppos,
963 wl->stats.fw_stats,
964 wl->stats.fw_stats_len);
965 }
966
967 static const struct file_operations fw_stats_raw_ops = {
968 .read = fw_stats_raw_read,
969 .open = simple_open,
970 .llseek = default_llseek,
971 };
972
973 static ssize_t sleep_auth_read(struct file *file, char __user *user_buf,
974 size_t count, loff_t *ppos)
975 {
976 struct wl1271 *wl = file->private_data;
977
978 return wl1271_format_buffer(user_buf, count,
979 ppos, "%d\n",
980 wl->sleep_auth);
981 }
982
983 static ssize_t sleep_auth_write(struct file *file,
984 const char __user *user_buf,
985 size_t count, loff_t *ppos)
986 {
987 struct wl1271 *wl = file->private_data;
988 unsigned long value;
989 int ret;
990
991 ret = kstrtoul_from_user(user_buf, count, 0, &value);
992 if (ret < 0) {
993 wl1271_warning("illegal value in sleep_auth");
994 return -EINVAL;
995 }
996
997 if (value > WL1271_PSM_MAX) {
998 wl1271_warning("sleep_auth must be between 0 and %d",
999 WL1271_PSM_MAX);
1000 return -ERANGE;
1001 }
1002
1003 mutex_lock(&wl->mutex);
1004
1005 wl->conf.conn.sta_sleep_auth = value;
1006
1007 if (unlikely(wl->state != WLCORE_STATE_ON)) {
1008 /* this will show up on "read" in case we are off */
1009 wl->sleep_auth = value;
1010 goto out;
1011 }
1012
1013 ret = wl1271_ps_elp_wakeup(wl);
1014 if (ret < 0)
1015 goto out;
1016
1017 ret = wl1271_acx_sleep_auth(wl, value);
1018 if (ret < 0)
1019 goto out_sleep;
1020
1021 out_sleep:
1022 wl1271_ps_elp_sleep(wl);
1023 out:
1024 mutex_unlock(&wl->mutex);
1025 return count;
1026 }
1027
1028 static const struct file_operations sleep_auth_ops = {
1029 .read = sleep_auth_read,
1030 .write = sleep_auth_write,
1031 .open = simple_open,
1032 .llseek = default_llseek,
1033 };
1034
1035 static ssize_t dev_mem_read(struct file *file,
1036 char __user *user_buf, size_t count,
1037 loff_t *ppos)
1038 {
1039 struct wl1271 *wl = file->private_data;
1040 struct wlcore_partition_set part, old_part;
1041 size_t bytes = count;
1042 int ret;
1043 char *buf;
1044
1045 /* only requests of dword-aligned size and offset are supported */
1046 if (bytes % 4)
1047 return -EINVAL;
1048
1049 if (*ppos % 4)
1050 return -EINVAL;
1051
1052 /* function should return in reasonable time */
1053 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE);
1054
1055 if (bytes == 0)
1056 return -EINVAL;
1057
1058 memset(&part, 0, sizeof(part));
1059 part.mem.start = *ppos;
1060 part.mem.size = bytes;
1061
1062 buf = kmalloc(bytes, GFP_KERNEL);
1063 if (!buf)
1064 return -ENOMEM;
1065
1066 mutex_lock(&wl->mutex);
1067
1068 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
1069 ret = -EFAULT;
1070 goto skip_read;
1071 }
1072
1073 /*
1074 * Don't fail if elp_wakeup returns an error, so the device's memory
1075 * could be read even if the FW crashed
1076 */
1077 wl1271_ps_elp_wakeup(wl);
1078
1079 /* store current partition and switch partition */
1080 memcpy(&old_part, &wl->curr_part, sizeof(old_part));
1081 ret = wlcore_set_partition(wl, &part);
1082 if (ret < 0)
1083 goto part_err;
1084
1085 ret = wlcore_raw_read(wl, 0, buf, bytes, false);
1086 if (ret < 0)
1087 goto read_err;
1088
1089 read_err:
1090 /* recover partition */
1091 ret = wlcore_set_partition(wl, &old_part);
1092 if (ret < 0)
1093 goto part_err;
1094
1095 part_err:
1096 wl1271_ps_elp_sleep(wl);
1097
1098 skip_read:
1099 mutex_unlock(&wl->mutex);
1100
1101 if (ret == 0) {
1102 ret = copy_to_user(user_buf, buf, bytes);
1103 if (ret < bytes) {
1104 bytes -= ret;
1105 *ppos += bytes;
1106 ret = 0;
1107 } else {
1108 ret = -EFAULT;
1109 }
1110 }
1111
1112 kfree(buf);
1113
1114 return ((ret == 0) ? bytes : ret);
1115 }
1116
1117 static ssize_t dev_mem_write(struct file *file, const char __user *user_buf,
1118 size_t count, loff_t *ppos)
1119 {
1120 struct wl1271 *wl = file->private_data;
1121 struct wlcore_partition_set part, old_part;
1122 size_t bytes = count;
1123 int ret;
1124 char *buf;
1125
1126 /* only requests of dword-aligned size and offset are supported */
1127 if (bytes % 4)
1128 return -EINVAL;
1129
1130 if (*ppos % 4)
1131 return -EINVAL;
1132
1133 /* function should return in reasonable time */
1134 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE);
1135
1136 if (bytes == 0)
1137 return -EINVAL;
1138
1139 memset(&part, 0, sizeof(part));
1140 part.mem.start = *ppos;
1141 part.mem.size = bytes;
1142
1143 buf = kmalloc(bytes, GFP_KERNEL);
1144 if (!buf)
1145 return -ENOMEM;
1146
1147 ret = copy_from_user(buf, user_buf, bytes);
1148 if (ret) {
1149 ret = -EFAULT;
1150 goto err_out;
1151 }
1152
1153 mutex_lock(&wl->mutex);
1154
1155 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
1156 ret = -EFAULT;
1157 goto skip_write;
1158 }
1159
1160 /*
1161 * Don't fail if elp_wakeup returns an error, so the device's memory
1162 * could be read even if the FW crashed
1163 */
1164 wl1271_ps_elp_wakeup(wl);
1165
1166 /* store current partition and switch partition */
1167 memcpy(&old_part, &wl->curr_part, sizeof(old_part));
1168 ret = wlcore_set_partition(wl, &part);
1169 if (ret < 0)
1170 goto part_err;
1171
1172 ret = wlcore_raw_write(wl, 0, buf, bytes, false);
1173 if (ret < 0)
1174 goto write_err;
1175
1176 write_err:
1177 /* recover partition */
1178 ret = wlcore_set_partition(wl, &old_part);
1179 if (ret < 0)
1180 goto part_err;
1181
1182 part_err:
1183 wl1271_ps_elp_sleep(wl);
1184
1185 skip_write:
1186 mutex_unlock(&wl->mutex);
1187
1188 if (ret == 0)
1189 *ppos += bytes;
1190
1191 err_out:
1192 kfree(buf);
1193
1194 return ((ret == 0) ? bytes : ret);
1195 }
1196
1197 static loff_t dev_mem_seek(struct file *file, loff_t offset, int orig)
1198 {
1199 loff_t ret;
1200
1201 /* only requests of dword-aligned size and offset are supported */
1202 if (offset % 4)
1203 return -EINVAL;
1204
1205 switch (orig) {
1206 case SEEK_SET:
1207 file->f_pos = offset;
1208 ret = file->f_pos;
1209 break;
1210 case SEEK_CUR:
1211 file->f_pos += offset;
1212 ret = file->f_pos;
1213 break;
1214 default:
1215 ret = -EINVAL;
1216 }
1217
1218 return ret;
1219 }
1220
1221 static const struct file_operations dev_mem_ops = {
1222 .open = simple_open,
1223 .read = dev_mem_read,
1224 .write = dev_mem_write,
1225 .llseek = dev_mem_seek,
1226 };
1227
1228 static int wl1271_debugfs_add_files(struct wl1271 *wl,
1229 struct dentry *rootdir)
1230 {
1231 int ret = 0;
1232 struct dentry *entry, *streaming;
1233
1234 DEBUGFS_ADD(tx_queue_len, rootdir);
1235 DEBUGFS_ADD(retry_count, rootdir);
1236 DEBUGFS_ADD(excessive_retries, rootdir);
1237
1238 DEBUGFS_ADD(gpio_power, rootdir);
1239 DEBUGFS_ADD(start_recovery, rootdir);
1240 DEBUGFS_ADD(driver_state, rootdir);
1241 DEBUGFS_ADD(vifs_state, rootdir);
1242 DEBUGFS_ADD(dtim_interval, rootdir);
1243 DEBUGFS_ADD(suspend_dtim_interval, rootdir);
1244 DEBUGFS_ADD(beacon_interval, rootdir);
1245 DEBUGFS_ADD(beacon_filtering, rootdir);
1246 DEBUGFS_ADD(dynamic_ps_timeout, rootdir);
1247 DEBUGFS_ADD(forced_ps, rootdir);
1248 DEBUGFS_ADD(split_scan_timeout, rootdir);
1249 DEBUGFS_ADD(irq_pkt_threshold, rootdir);
1250 DEBUGFS_ADD(irq_blk_threshold, rootdir);
1251 DEBUGFS_ADD(irq_timeout, rootdir);
1252 DEBUGFS_ADD(fw_stats_raw, rootdir);
1253 DEBUGFS_ADD(sleep_auth, rootdir);
1254
1255 streaming = debugfs_create_dir("rx_streaming", rootdir);
1256 if (!streaming || IS_ERR(streaming))
1257 goto err;
1258
1259 DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming);
1260 DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming);
1261
1262 DEBUGFS_ADD_PREFIX(dev, mem, rootdir);
1263
1264 return 0;
1265
1266 err:
1267 if (IS_ERR(entry))
1268 ret = PTR_ERR(entry);
1269 else
1270 ret = -ENOMEM;
1271
1272 return ret;
1273 }
1274
1275 void wl1271_debugfs_reset(struct wl1271 *wl)
1276 {
1277 if (!wl->stats.fw_stats)
1278 return;
1279
1280 memset(wl->stats.fw_stats, 0, wl->stats.fw_stats_len);
1281 wl->stats.retry_count = 0;
1282 wl->stats.excessive_retries = 0;
1283 }
1284
1285 int wl1271_debugfs_init(struct wl1271 *wl)
1286 {
1287 int ret;
1288 struct dentry *rootdir;
1289
1290 rootdir = debugfs_create_dir(KBUILD_MODNAME,
1291 wl->hw->wiphy->debugfsdir);
1292
1293 if (IS_ERR(rootdir)) {
1294 ret = PTR_ERR(rootdir);
1295 goto out;
1296 }
1297
1298 wl->stats.fw_stats = kzalloc(wl->stats.fw_stats_len, GFP_KERNEL);
1299 if (!wl->stats.fw_stats) {
1300 ret = -ENOMEM;
1301 goto out_remove;
1302 }
1303
1304 wl->stats.fw_stats_update = jiffies;
1305
1306 ret = wl1271_debugfs_add_files(wl, rootdir);
1307 if (ret < 0)
1308 goto out_exit;
1309
1310 ret = wlcore_debugfs_init(wl, rootdir);
1311 if (ret < 0)
1312 goto out_exit;
1313
1314 goto out;
1315
1316 out_exit:
1317 wl1271_debugfs_exit(wl);
1318
1319 out_remove:
1320 debugfs_remove_recursive(rootdir);
1321
1322 out:
1323 return ret;
1324 }
1325
1326 void wl1271_debugfs_exit(struct wl1271 *wl)
1327 {
1328 kfree(wl->stats.fw_stats);
1329 wl->stats.fw_stats = NULL;
1330 }
CRIS linux kernel tree