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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * This file is part of wl1271
4 *
5 * Copyright (C) 2009 Nokia Corporation
6 *
7 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
8 */
9
10#include "debugfs.h"
11
12#include <linux/skbuff.h>
13#include <linux/slab.h>
14#include <linux/module.h>
15#include <linux/pm_runtime.h>
16
17#include "wlcore.h"
18#include "debug.h"
19#include "acx.h"
20#include "ps.h"
21#include "io.h"
22#include "tx.h"
23#include "hw_ops.h"
24
25/* ms */
26#define WL1271_DEBUGFS_STATS_LIFETIME 1000
27
28#define WLCORE_MAX_BLOCK_SIZE ((size_t)(4*PAGE_SIZE))
29
30/* debugfs macros idea from mac80211 */
31int wl1271_format_buffer(char __user *userbuf, size_t count,
32 loff_t *ppos, char *fmt, ...)
33{
34 va_list args;
35 char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
36 int res;
37
38 va_start(args, fmt);
39 res = vscnprintf(buf, sizeof(buf), fmt, args);
40 va_end(args);
41
42 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
43}
44EXPORT_SYMBOL_GPL(wl1271_format_buffer);
45
46void wl1271_debugfs_update_stats(struct wl1271 *wl)
47{
48 int ret;
49
50 mutex_lock(&wl->mutex);
51
52 if (unlikely(wl->state != WLCORE_STATE_ON))
53 goto out;
54
55 ret = pm_runtime_resume_and_get(wl->dev);
56 if (ret < 0)
57 goto out;
58
59 if (!wl->plt &&
60 time_after(jiffies, wl->stats.fw_stats_update +
61 msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) {
62 wl1271_acx_statistics(wl, wl->stats.fw_stats);
63 wl->stats.fw_stats_update = jiffies;
64 }
65
66 pm_runtime_mark_last_busy(wl->dev);
67 pm_runtime_put_autosuspend(wl->dev);
68
69out:
70 mutex_unlock(&wl->mutex);
71}
72EXPORT_SYMBOL_GPL(wl1271_debugfs_update_stats);
73
74DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
75DEBUGFS_READONLY_FILE(excessive_retries, "%u",
76 wl->stats.excessive_retries);
77
78static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
79 size_t count, loff_t *ppos)
80{
81 struct wl1271 *wl = file->private_data;
82 u32 queue_len;
83 char buf[20];
84 int res;
85
86 queue_len = wl1271_tx_total_queue_count(wl);
87
88 res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
89 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
90}
91
92static const struct file_operations tx_queue_len_ops = {
93 .read = tx_queue_len_read,
94 .open = simple_open,
95 .llseek = default_llseek,
96};
97
98static void chip_op_handler(struct wl1271 *wl, unsigned long value,
99 void *arg)
100{
101 int ret;
102 int (*chip_op) (struct wl1271 *wl);
103
104 if (!arg) {
105 wl1271_warning("debugfs chip_op_handler with no callback");
106 return;
107 }
108
109 ret = pm_runtime_resume_and_get(wl->dev);
110 if (ret < 0)
111 return;
112
113 chip_op = arg;
114 chip_op(wl);
115
116 pm_runtime_mark_last_busy(wl->dev);
117 pm_runtime_put_autosuspend(wl->dev);
118}
119
120#define WL12XX_CONF_DEBUGFS(param, conf_sub_struct, \
121 min_val, max_val, write_handler_locked, \
122 write_handler_arg) \
123 static ssize_t param##_read(struct file *file, \
124 char __user *user_buf, \
125 size_t count, loff_t *ppos) \
126 { \
127 struct wl1271 *wl = file->private_data; \
128 return wl1271_format_buffer(user_buf, count, \
129 ppos, "%d\n", \
130 wl->conf.conf_sub_struct.param); \
131 } \
132 \
133 static ssize_t param##_write(struct file *file, \
134 const char __user *user_buf, \
135 size_t count, loff_t *ppos) \
136 { \
137 struct wl1271 *wl = file->private_data; \
138 unsigned long value; \
139 int ret; \
140 \
141 ret = kstrtoul_from_user(user_buf, count, 10, &value); \
142 if (ret < 0) { \
143 wl1271_warning("illegal value for " #param); \
144 return -EINVAL; \
145 } \
146 \
147 if (value < min_val || value > max_val) { \
148 wl1271_warning(#param " is not in valid range"); \
149 return -ERANGE; \
150 } \
151 \
152 mutex_lock(&wl->mutex); \
153 wl->conf.conf_sub_struct.param = value; \
154 \
155 write_handler_locked(wl, value, write_handler_arg); \
156 \
157 mutex_unlock(&wl->mutex); \
158 return count; \
159 } \
160 \
161 static const struct file_operations param##_ops = { \
162 .read = param##_read, \
163 .write = param##_write, \
164 .open = simple_open, \
165 .llseek = default_llseek, \
166 };
167
168WL12XX_CONF_DEBUGFS(irq_pkt_threshold, rx, 0, 65535,
169 chip_op_handler, wl1271_acx_init_rx_interrupt)
170WL12XX_CONF_DEBUGFS(irq_blk_threshold, rx, 0, 65535,
171 chip_op_handler, wl1271_acx_init_rx_interrupt)
172WL12XX_CONF_DEBUGFS(irq_timeout, rx, 0, 100,
173 chip_op_handler, wl1271_acx_init_rx_interrupt)
174
175static ssize_t gpio_power_read(struct file *file, char __user *user_buf,
176 size_t count, loff_t *ppos)
177{
178 struct wl1271 *wl = file->private_data;
179 bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
180
181 int res;
182 char buf[10];
183
184 res = scnprintf(buf, sizeof(buf), "%d\n", state);
185
186 return simple_read_from_buffer(user_buf, count, ppos, buf, res);
187}
188
189static ssize_t gpio_power_write(struct file *file,
190 const char __user *user_buf,
191 size_t count, loff_t *ppos)
192{
193 struct wl1271 *wl = file->private_data;
194 unsigned long value;
195 int ret;
196
197 ret = kstrtoul_from_user(user_buf, count, 10, &value);
198 if (ret < 0) {
199 wl1271_warning("illegal value in gpio_power");
200 return -EINVAL;
201 }
202
203 mutex_lock(&wl->mutex);
204
205 if (value)
206 wl1271_power_on(wl);
207 else
208 wl1271_power_off(wl);
209
210 mutex_unlock(&wl->mutex);
211 return count;
212}
213
214static const struct file_operations gpio_power_ops = {
215 .read = gpio_power_read,
216 .write = gpio_power_write,
217 .open = simple_open,
218 .llseek = default_llseek,
219};
220
221static ssize_t start_recovery_write(struct file *file,
222 const char __user *user_buf,
223 size_t count, loff_t *ppos)
224{
225 struct wl1271 *wl = file->private_data;
226
227 mutex_lock(&wl->mutex);
228 wl12xx_queue_recovery_work(wl);
229 mutex_unlock(&wl->mutex);
230
231 return count;
232}
233
234static const struct file_operations start_recovery_ops = {
235 .write = start_recovery_write,
236 .open = simple_open,
237 .llseek = default_llseek,
238};
239
240static ssize_t dynamic_ps_timeout_read(struct file *file, char __user *user_buf,
241 size_t count, loff_t *ppos)
242{
243 struct wl1271 *wl = file->private_data;
244
245 return wl1271_format_buffer(user_buf, count,
246 ppos, "%d\n",
247 wl->conf.conn.dynamic_ps_timeout);
248}
249
250static ssize_t dynamic_ps_timeout_write(struct file *file,
251 const char __user *user_buf,
252 size_t count, loff_t *ppos)
253{
254 struct wl1271 *wl = file->private_data;
255 struct wl12xx_vif *wlvif;
256 unsigned long value;
257 int ret;
258
259 ret = kstrtoul_from_user(user_buf, count, 10, &value);
260 if (ret < 0) {
261 wl1271_warning("illegal value in dynamic_ps");
262 return -EINVAL;
263 }
264
265 if (value < 1 || value > 65535) {
266 wl1271_warning("dynamic_ps_timeout is not in valid range");
267 return -ERANGE;
268 }
269
270 mutex_lock(&wl->mutex);
271
272 wl->conf.conn.dynamic_ps_timeout = value;
273
274 if (unlikely(wl->state != WLCORE_STATE_ON))
275 goto out;
276
277 ret = pm_runtime_resume_and_get(wl->dev);
278 if (ret < 0)
279 goto out;
280
281 /* In case we're already in PSM, trigger it again to set new timeout
282 * immediately without waiting for re-association
283 */
284
285 wl12xx_for_each_wlvif_sta(wl, wlvif) {
286 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
287 wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE);
288 }
289
290 pm_runtime_mark_last_busy(wl->dev);
291 pm_runtime_put_autosuspend(wl->dev);
292
293out:
294 mutex_unlock(&wl->mutex);
295 return count;
296}
297
298static const struct file_operations dynamic_ps_timeout_ops = {
299 .read = dynamic_ps_timeout_read,
300 .write = dynamic_ps_timeout_write,
301 .open = simple_open,
302 .llseek = default_llseek,
303};
304
305static ssize_t forced_ps_read(struct file *file, char __user *user_buf,
306 size_t count, loff_t *ppos)
307{
308 struct wl1271 *wl = file->private_data;
309
310 return wl1271_format_buffer(user_buf, count,
311 ppos, "%d\n",
312 wl->conf.conn.forced_ps);
313}
314
315static ssize_t forced_ps_write(struct file *file,
316 const char __user *user_buf,
317 size_t count, loff_t *ppos)
318{
319 struct wl1271 *wl = file->private_data;
320 struct wl12xx_vif *wlvif;
321 unsigned long value;
322 int ret, ps_mode;
323
324 ret = kstrtoul_from_user(user_buf, count, 10, &value);
325 if (ret < 0) {
326 wl1271_warning("illegal value in forced_ps");
327 return -EINVAL;
328 }
329
330 if (value != 1 && value != 0) {
331 wl1271_warning("forced_ps should be either 0 or 1");
332 return -ERANGE;
333 }
334
335 mutex_lock(&wl->mutex);
336
337 if (wl->conf.conn.forced_ps == value)
338 goto out;
339
340 wl->conf.conn.forced_ps = value;
341
342 if (unlikely(wl->state != WLCORE_STATE_ON))
343 goto out;
344
345 ret = pm_runtime_resume_and_get(wl->dev);
346 if (ret < 0)
347 goto out;
348
349 /* In case we're already in PSM, trigger it again to switch mode
350 * immediately without waiting for re-association
351 */
352
353 ps_mode = value ? STATION_POWER_SAVE_MODE : STATION_AUTO_PS_MODE;
354
355 wl12xx_for_each_wlvif_sta(wl, wlvif) {
356 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
357 wl1271_ps_set_mode(wl, wlvif, ps_mode);
358 }
359
360 pm_runtime_mark_last_busy(wl->dev);
361 pm_runtime_put_autosuspend(wl->dev);
362
363out:
364 mutex_unlock(&wl->mutex);
365 return count;
366}
367
368static const struct file_operations forced_ps_ops = {
369 .read = forced_ps_read,
370 .write = forced_ps_write,
371 .open = simple_open,
372 .llseek = default_llseek,
373};
374
375static ssize_t split_scan_timeout_read(struct file *file, char __user *user_buf,
376 size_t count, loff_t *ppos)
377{
378 struct wl1271 *wl = file->private_data;
379
380 return wl1271_format_buffer(user_buf, count,
381 ppos, "%d\n",
382 wl->conf.scan.split_scan_timeout / 1000);
383}
384
385static ssize_t split_scan_timeout_write(struct file *file,
386 const char __user *user_buf,
387 size_t count, loff_t *ppos)
388{
389 struct wl1271 *wl = file->private_data;
390 unsigned long value;
391 int ret;
392
393 ret = kstrtoul_from_user(user_buf, count, 10, &value);
394 if (ret < 0) {
395 wl1271_warning("illegal value in split_scan_timeout");
396 return -EINVAL;
397 }
398
399 if (value == 0)
400 wl1271_info("split scan will be disabled");
401
402 mutex_lock(&wl->mutex);
403
404 wl->conf.scan.split_scan_timeout = value * 1000;
405
406 mutex_unlock(&wl->mutex);
407 return count;
408}
409
410static const struct file_operations split_scan_timeout_ops = {
411 .read = split_scan_timeout_read,
412 .write = split_scan_timeout_write,
413 .open = simple_open,
414 .llseek = default_llseek,
415};
416
417static ssize_t driver_state_read(struct file *file, char __user *user_buf,
418 size_t count, loff_t *ppos)
419{
420 struct wl1271 *wl = file->private_data;
421 int res = 0;
422 ssize_t ret;
423 char *buf;
424 struct wl12xx_vif *wlvif;
425
426#define DRIVER_STATE_BUF_LEN 1024
427
428 buf = kmalloc(DRIVER_STATE_BUF_LEN, GFP_KERNEL);
429 if (!buf)
430 return -ENOMEM;
431
432 mutex_lock(&wl->mutex);
433
434#define DRIVER_STATE_PRINT(x, fmt) \
435 (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\
436 #x " = " fmt "\n", wl->x))
437
438#define DRIVER_STATE_PRINT_GENERIC(x, fmt, args...) \
439 (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\
440 #x " = " fmt "\n", args))
441
442#define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld")
443#define DRIVER_STATE_PRINT_INT(x) DRIVER_STATE_PRINT(x, "%d")
444#define DRIVER_STATE_PRINT_STR(x) DRIVER_STATE_PRINT(x, "%s")
445#define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx")
446#define DRIVER_STATE_PRINT_HEX(x) DRIVER_STATE_PRINT(x, "0x%x")
447
448 wl12xx_for_each_wlvif_sta(wl, wlvif) {
449 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
450 continue;
451
452 DRIVER_STATE_PRINT_GENERIC(channel, "%d (%s)", wlvif->channel,
453 wlvif->p2p ? "P2P-CL" : "STA");
454 }
455
456 wl12xx_for_each_wlvif_ap(wl, wlvif)
457 DRIVER_STATE_PRINT_GENERIC(channel, "%d (%s)", wlvif->channel,
458 wlvif->p2p ? "P2P-GO" : "AP");
459
460 DRIVER_STATE_PRINT_INT(tx_blocks_available);
461 DRIVER_STATE_PRINT_INT(tx_allocated_blocks);
462 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]);
463 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]);
464 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]);
465 DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]);
466 DRIVER_STATE_PRINT_INT(tx_frames_cnt);
467 DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]);
468 DRIVER_STATE_PRINT_INT(tx_queue_count[0]);
469 DRIVER_STATE_PRINT_INT(tx_queue_count[1]);
470 DRIVER_STATE_PRINT_INT(tx_queue_count[2]);
471 DRIVER_STATE_PRINT_INT(tx_queue_count[3]);
472 DRIVER_STATE_PRINT_INT(tx_packets_count);
473 DRIVER_STATE_PRINT_INT(tx_results_count);
474 DRIVER_STATE_PRINT_LHEX(flags);
475 DRIVER_STATE_PRINT_INT(tx_blocks_freed);
476 DRIVER_STATE_PRINT_INT(rx_counter);
477 DRIVER_STATE_PRINT_INT(state);
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_LHEX(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(irq_flags);
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
510static const struct file_operations driver_state_ops = {
511 .read = driver_state_read,
512 .open = simple_open,
513 .llseek = default_llseek,
514};
515
516static 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
620static const struct file_operations vifs_state_ops = {
621 .read = vifs_state_read,
622 .open = simple_open,
623 .llseek = default_llseek,
624};
625
626static 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
641static 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
677static 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
686static 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
702static 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
735static 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
742static 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
757static 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
793static 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
800static 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 = pm_runtime_resume_and_get(wl->dev);
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 pm_runtime_mark_last_busy(wl->dev);
834 pm_runtime_put_autosuspend(wl->dev);
835out:
836 mutex_unlock(&wl->mutex);
837 return count;
838}
839
840static ssize_t rx_streaming_interval_read(struct file *file,
841 char __user *userbuf,
842 size_t count, loff_t *ppos)
843{
844 struct wl1271 *wl = file->private_data;
845 return wl1271_format_buffer(userbuf, count, ppos,
846 "%d\n", wl->conf.rx_streaming.interval);
847}
848
849static const struct file_operations rx_streaming_interval_ops = {
850 .read = rx_streaming_interval_read,
851 .write = rx_streaming_interval_write,
852 .open = simple_open,
853 .llseek = default_llseek,
854};
855
856static ssize_t rx_streaming_always_write(struct file *file,
857 const char __user *user_buf,
858 size_t count, loff_t *ppos)
859{
860 struct wl1271 *wl = file->private_data;
861 struct wl12xx_vif *wlvif;
862 unsigned long value;
863 int ret;
864
865 ret = kstrtoul_from_user(user_buf, count, 10, &value);
866 if (ret < 0) {
867 wl1271_warning("illegal value in rx_streaming_write!");
868 return -EINVAL;
869 }
870
871 /* valid values: 0, 10-100 */
872 if (!(value == 0 || value == 1)) {
873 wl1271_warning("value is not in valid!");
874 return -EINVAL;
875 }
876
877 mutex_lock(&wl->mutex);
878
879 wl->conf.rx_streaming.always = value;
880
881 ret = pm_runtime_resume_and_get(wl->dev);
882 if (ret < 0)
883 goto out;
884
885 wl12xx_for_each_wlvif_sta(wl, wlvif) {
886 wl1271_recalc_rx_streaming(wl, wlvif);
887 }
888
889 pm_runtime_mark_last_busy(wl->dev);
890 pm_runtime_put_autosuspend(wl->dev);
891out:
892 mutex_unlock(&wl->mutex);
893 return count;
894}
895
896static ssize_t rx_streaming_always_read(struct file *file,
897 char __user *userbuf,
898 size_t count, loff_t *ppos)
899{
900 struct wl1271 *wl = file->private_data;
901 return wl1271_format_buffer(userbuf, count, ppos,
902 "%d\n", wl->conf.rx_streaming.always);
903}
904
905static const struct file_operations rx_streaming_always_ops = {
906 .read = rx_streaming_always_read,
907 .write = rx_streaming_always_write,
908 .open = simple_open,
909 .llseek = default_llseek,
910};
911
912static ssize_t beacon_filtering_write(struct file *file,
913 const char __user *user_buf,
914 size_t count, loff_t *ppos)
915{
916 struct wl1271 *wl = file->private_data;
917 struct wl12xx_vif *wlvif;
918 unsigned long value;
919 int ret;
920
921 ret = kstrtoul_from_user(user_buf, count, 0, &value);
922 if (ret < 0) {
923 wl1271_warning("illegal value for beacon_filtering!");
924 return -EINVAL;
925 }
926
927 mutex_lock(&wl->mutex);
928
929 ret = pm_runtime_resume_and_get(wl->dev);
930 if (ret < 0)
931 goto out;
932
933 wl12xx_for_each_wlvif(wl, wlvif) {
934 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value);
935 }
936
937 pm_runtime_mark_last_busy(wl->dev);
938 pm_runtime_put_autosuspend(wl->dev);
939out:
940 mutex_unlock(&wl->mutex);
941 return count;
942}
943
944static const struct file_operations beacon_filtering_ops = {
945 .write = beacon_filtering_write,
946 .open = simple_open,
947 .llseek = default_llseek,
948};
949
950static ssize_t fw_stats_raw_read(struct file *file,
951 char __user *userbuf,
952 size_t count, loff_t *ppos)
953{
954 struct wl1271 *wl = file->private_data;
955
956 wl1271_debugfs_update_stats(wl);
957
958 return simple_read_from_buffer(userbuf, count, ppos,
959 wl->stats.fw_stats,
960 wl->stats.fw_stats_len);
961}
962
963static const struct file_operations fw_stats_raw_ops = {
964 .read = fw_stats_raw_read,
965 .open = simple_open,
966 .llseek = default_llseek,
967};
968
969static ssize_t sleep_auth_read(struct file *file, char __user *user_buf,
970 size_t count, loff_t *ppos)
971{
972 struct wl1271 *wl = file->private_data;
973
974 return wl1271_format_buffer(user_buf, count,
975 ppos, "%d\n",
976 wl->sleep_auth);
977}
978
979static ssize_t sleep_auth_write(struct file *file,
980 const char __user *user_buf,
981 size_t count, loff_t *ppos)
982{
983 struct wl1271 *wl = file->private_data;
984 unsigned long value;
985 int ret;
986
987 ret = kstrtoul_from_user(user_buf, count, 0, &value);
988 if (ret < 0) {
989 wl1271_warning("illegal value in sleep_auth");
990 return -EINVAL;
991 }
992
993 if (value > WL1271_PSM_MAX) {
994 wl1271_warning("sleep_auth must be between 0 and %d",
995 WL1271_PSM_MAX);
996 return -ERANGE;
997 }
998
999 mutex_lock(&wl->mutex);
1000
1001 wl->conf.conn.sta_sleep_auth = value;
1002
1003 if (unlikely(wl->state != WLCORE_STATE_ON)) {
1004 /* this will show up on "read" in case we are off */
1005 wl->sleep_auth = value;
1006 goto out;
1007 }
1008
1009 ret = pm_runtime_resume_and_get(wl->dev);
1010 if (ret < 0)
1011 goto out;
1012
1013 ret = wl1271_acx_sleep_auth(wl, value);
1014 if (ret < 0)
1015 goto out_sleep;
1016
1017out_sleep:
1018 pm_runtime_mark_last_busy(wl->dev);
1019 pm_runtime_put_autosuspend(wl->dev);
1020out:
1021 mutex_unlock(&wl->mutex);
1022 return count;
1023}
1024
1025static const struct file_operations sleep_auth_ops = {
1026 .read = sleep_auth_read,
1027 .write = sleep_auth_write,
1028 .open = simple_open,
1029 .llseek = default_llseek,
1030};
1031
1032static ssize_t dev_mem_read(struct file *file,
1033 char __user *user_buf, size_t count,
1034 loff_t *ppos)
1035{
1036 struct wl1271 *wl = file->private_data;
1037 struct wlcore_partition_set part, old_part;
1038 size_t bytes = count;
1039 int ret;
1040 char *buf;
1041
1042 /* only requests of dword-aligned size and offset are supported */
1043 if (bytes % 4)
1044 return -EINVAL;
1045
1046 if (*ppos % 4)
1047 return -EINVAL;
1048
1049 /* function should return in reasonable time */
1050 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE);
1051
1052 if (bytes == 0)
1053 return -EINVAL;
1054
1055 memset(&part, 0, sizeof(part));
1056 part.mem.start = *ppos;
1057 part.mem.size = bytes;
1058
1059 buf = kmalloc(bytes, GFP_KERNEL);
1060 if (!buf)
1061 return -ENOMEM;
1062
1063 mutex_lock(&wl->mutex);
1064
1065 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
1066 ret = -EFAULT;
1067 goto skip_read;
1068 }
1069
1070 /*
1071 * Don't fail if elp_wakeup returns an error, so the device's memory
1072 * could be read even if the FW crashed
1073 */
1074 pm_runtime_get_sync(wl->dev);
1075
1076 /* store current partition and switch partition */
1077 memcpy(&old_part, &wl->curr_part, sizeof(old_part));
1078 ret = wlcore_set_partition(wl, &part);
1079 if (ret < 0)
1080 goto part_err;
1081
1082 ret = wlcore_raw_read(wl, 0, buf, bytes, false);
1083 if (ret < 0)
1084 goto read_err;
1085
1086read_err:
1087 /* recover partition */
1088 ret = wlcore_set_partition(wl, &old_part);
1089 if (ret < 0)
1090 goto part_err;
1091
1092part_err:
1093 pm_runtime_mark_last_busy(wl->dev);
1094 pm_runtime_put_autosuspend(wl->dev);
1095
1096skip_read:
1097 mutex_unlock(&wl->mutex);
1098
1099 if (ret == 0) {
1100 ret = copy_to_user(user_buf, buf, bytes);
1101 if (ret < bytes) {
1102 bytes -= ret;
1103 *ppos += bytes;
1104 ret = 0;
1105 } else {
1106 ret = -EFAULT;
1107 }
1108 }
1109
1110 kfree(buf);
1111
1112 return ((ret == 0) ? bytes : ret);
1113}
1114
1115static ssize_t dev_mem_write(struct file *file, const char __user *user_buf,
1116 size_t count, loff_t *ppos)
1117{
1118 struct wl1271 *wl = file->private_data;
1119 struct wlcore_partition_set part, old_part;
1120 size_t bytes = count;
1121 int ret;
1122 char *buf;
1123
1124 /* only requests of dword-aligned size and offset are supported */
1125 if (bytes % 4)
1126 return -EINVAL;
1127
1128 if (*ppos % 4)
1129 return -EINVAL;
1130
1131 /* function should return in reasonable time */
1132 bytes = min(bytes, WLCORE_MAX_BLOCK_SIZE);
1133
1134 if (bytes == 0)
1135 return -EINVAL;
1136
1137 memset(&part, 0, sizeof(part));
1138 part.mem.start = *ppos;
1139 part.mem.size = bytes;
1140
1141 buf = memdup_user(user_buf, bytes);
1142 if (IS_ERR(buf))
1143 return PTR_ERR(buf);
1144
1145 mutex_lock(&wl->mutex);
1146
1147 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
1148 ret = -EFAULT;
1149 goto skip_write;
1150 }
1151
1152 /*
1153 * Don't fail if elp_wakeup returns an error, so the device's memory
1154 * could be read even if the FW crashed
1155 */
1156 pm_runtime_get_sync(wl->dev);
1157
1158 /* store current partition and switch partition */
1159 memcpy(&old_part, &wl->curr_part, sizeof(old_part));
1160 ret = wlcore_set_partition(wl, &part);
1161 if (ret < 0)
1162 goto part_err;
1163
1164 ret = wlcore_raw_write(wl, 0, buf, bytes, false);
1165 if (ret < 0)
1166 goto write_err;
1167
1168write_err:
1169 /* recover partition */
1170 ret = wlcore_set_partition(wl, &old_part);
1171 if (ret < 0)
1172 goto part_err;
1173
1174part_err:
1175 pm_runtime_mark_last_busy(wl->dev);
1176 pm_runtime_put_autosuspend(wl->dev);
1177
1178skip_write:
1179 mutex_unlock(&wl->mutex);
1180
1181 if (ret == 0)
1182 *ppos += bytes;
1183
1184 kfree(buf);
1185
1186 return ((ret == 0) ? bytes : ret);
1187}
1188
1189static loff_t dev_mem_seek(struct file *file, loff_t offset, int orig)
1190{
1191 /* only requests of dword-aligned size and offset are supported */
1192 if (offset % 4)
1193 return -EINVAL;
1194
1195 return no_seek_end_llseek(file, offset, orig);
1196}
1197
1198static const struct file_operations dev_mem_ops = {
1199 .open = simple_open,
1200 .read = dev_mem_read,
1201 .write = dev_mem_write,
1202 .llseek = dev_mem_seek,
1203};
1204
1205static ssize_t fw_logger_read(struct file *file, char __user *user_buf,
1206 size_t count, loff_t *ppos)
1207{
1208 struct wl1271 *wl = file->private_data;
1209
1210 return wl1271_format_buffer(user_buf, count,
1211 ppos, "%d\n",
1212 wl->conf.fwlog.output);
1213}
1214
1215static ssize_t fw_logger_write(struct file *file,
1216 const char __user *user_buf,
1217 size_t count, loff_t *ppos)
1218{
1219 struct wl1271 *wl = file->private_data;
1220 unsigned long value;
1221 int ret;
1222
1223 ret = kstrtoul_from_user(user_buf, count, 0, &value);
1224 if (ret < 0) {
1225 wl1271_warning("illegal value in fw_logger");
1226 return -EINVAL;
1227 }
1228
1229 if ((value > 2) || (value == 0)) {
1230 wl1271_warning("fw_logger value must be 1-UART 2-SDIO");
1231 return -ERANGE;
1232 }
1233
1234 if (wl->conf.fwlog.output == 0) {
1235 wl1271_warning("invalid operation - fw logger disabled by default, please change mode via wlconf");
1236 return -EINVAL;
1237 }
1238
1239 mutex_lock(&wl->mutex);
1240 ret = pm_runtime_resume_and_get(wl->dev);
1241 if (ret < 0) {
1242 count = ret;
1243 goto out;
1244 }
1245
1246 wl->conf.fwlog.output = value;
1247
1248 ret = wl12xx_cmd_config_fwlog(wl);
1249
1250 pm_runtime_mark_last_busy(wl->dev);
1251 pm_runtime_put_autosuspend(wl->dev);
1252
1253out:
1254 mutex_unlock(&wl->mutex);
1255 return count;
1256}
1257
1258static const struct file_operations fw_logger_ops = {
1259 .open = simple_open,
1260 .read = fw_logger_read,
1261 .write = fw_logger_write,
1262 .llseek = default_llseek,
1263};
1264
1265static void wl1271_debugfs_add_files(struct wl1271 *wl,
1266 struct dentry *rootdir)
1267{
1268 struct dentry *streaming;
1269
1270 DEBUGFS_ADD(tx_queue_len, rootdir);
1271 DEBUGFS_ADD(retry_count, rootdir);
1272 DEBUGFS_ADD(excessive_retries, rootdir);
1273
1274 DEBUGFS_ADD(gpio_power, rootdir);
1275 DEBUGFS_ADD(start_recovery, rootdir);
1276 DEBUGFS_ADD(driver_state, rootdir);
1277 DEBUGFS_ADD(vifs_state, rootdir);
1278 DEBUGFS_ADD(dtim_interval, rootdir);
1279 DEBUGFS_ADD(suspend_dtim_interval, rootdir);
1280 DEBUGFS_ADD(beacon_interval, rootdir);
1281 DEBUGFS_ADD(beacon_filtering, rootdir);
1282 DEBUGFS_ADD(dynamic_ps_timeout, rootdir);
1283 DEBUGFS_ADD(forced_ps, rootdir);
1284 DEBUGFS_ADD(split_scan_timeout, rootdir);
1285 DEBUGFS_ADD(irq_pkt_threshold, rootdir);
1286 DEBUGFS_ADD(irq_blk_threshold, rootdir);
1287 DEBUGFS_ADD(irq_timeout, rootdir);
1288 DEBUGFS_ADD(fw_stats_raw, rootdir);
1289 DEBUGFS_ADD(sleep_auth, rootdir);
1290 DEBUGFS_ADD(fw_logger, rootdir);
1291
1292 streaming = debugfs_create_dir("rx_streaming", rootdir);
1293
1294 DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming);
1295 DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming);
1296
1297 DEBUGFS_ADD_PREFIX(dev, mem, rootdir);
1298}
1299
1300void wl1271_debugfs_reset(struct wl1271 *wl)
1301{
1302 if (!wl->stats.fw_stats)
1303 return;
1304
1305 memset(wl->stats.fw_stats, 0, wl->stats.fw_stats_len);
1306 wl->stats.retry_count = 0;
1307 wl->stats.excessive_retries = 0;
1308}
1309
1310int wl1271_debugfs_init(struct wl1271 *wl)
1311{
1312 int ret;
1313 struct dentry *rootdir;
1314
1315 rootdir = debugfs_create_dir(KBUILD_MODNAME,
1316 wl->hw->wiphy->debugfsdir);
1317
1318 wl->stats.fw_stats = kzalloc(wl->stats.fw_stats_len, GFP_KERNEL);
1319 if (!wl->stats.fw_stats) {
1320 ret = -ENOMEM;
1321 goto out_remove;
1322 }
1323
1324 wl->stats.fw_stats_update = jiffies;
1325
1326 wl1271_debugfs_add_files(wl, rootdir);
1327
1328 ret = wlcore_debugfs_init(wl, rootdir);
1329 if (ret < 0)
1330 goto out_exit;
1331
1332 goto out;
1333
1334out_exit:
1335 wl1271_debugfs_exit(wl);
1336
1337out_remove:
1338 debugfs_remove_recursive(rootdir);
1339
1340out:
1341 return ret;
1342}
1343
1344void wl1271_debugfs_exit(struct wl1271 *wl)
1345{
1346 kfree(wl->stats.fw_stats);
1347 wl->stats.fw_stats = NULL;
1348}