simple_open: automatically convert to simple_open()
[linux-2.6.git] / drivers / net / wireless / wl12xx / debugfs.c
1 /*
2  * This file is part of wl1271
3  *
4  * Copyright (C) 2009 Nokia Corporation
5  *
6  * Contact: Luciano Coelho <luciano.coelho@nokia.com>
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License
10  * version 2 as published by the Free Software Foundation.
11  *
12  * This program is distributed in the hope that it will be useful, but
13  * WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20  * 02110-1301 USA
21  *
22  */
23
24 #include "debugfs.h"
25
26 #include <linux/skbuff.h>
27 #include <linux/slab.h>
28
29 #include "wl12xx.h"
30 #include "debug.h"
31 #include "acx.h"
32 #include "ps.h"
33 #include "io.h"
34 #include "tx.h"
35
36 /* ms */
37 #define WL1271_DEBUGFS_STATS_LIFETIME 1000
38
39 /* debugfs macros idea from mac80211 */
40 #define DEBUGFS_FORMAT_BUFFER_SIZE 100
41 static int wl1271_format_buffer(char __user *userbuf, size_t count,
42                                     loff_t *ppos, char *fmt, ...)
43 {
44         va_list args;
45         char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
46         int res;
47
48         va_start(args, fmt);
49         res = vscnprintf(buf, sizeof(buf), fmt, args);
50         va_end(args);
51
52         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
53 }
54
55 #define DEBUGFS_READONLY_FILE(name, fmt, value...)                      \
56 static ssize_t name## _read(struct file *file, char __user *userbuf,    \
57                             size_t count, loff_t *ppos)                 \
58 {                                                                       \
59         struct wl1271 *wl = file->private_data;                         \
60         return wl1271_format_buffer(userbuf, count, ppos,               \
61                                     fmt "\n", ##value);                 \
62 }                                                                       \
63                                                                         \
64 static const struct file_operations name## _ops = {                     \
65         .read = name## _read,                                           \
66         .open = simple_open,                                            \
67         .llseek = generic_file_llseek,                                  \
68 };
69
70 #define DEBUGFS_ADD(name, parent)                                       \
71         entry = debugfs_create_file(#name, 0400, parent,                \
72                                     wl, &name## _ops);                  \
73         if (!entry || IS_ERR(entry))                                    \
74                 goto err;                                               \
75
76 #define DEBUGFS_ADD_PREFIX(prefix, name, parent)                        \
77         do {                                                            \
78                 entry = debugfs_create_file(#name, 0400, parent,        \
79                                     wl, &prefix## _## name## _ops);     \
80                 if (!entry || IS_ERR(entry))                            \
81                         goto err;                                       \
82         } while (0);
83
84 #define DEBUGFS_FWSTATS_FILE(sub, name, fmt)                            \
85 static ssize_t sub## _ ##name## _read(struct file *file,                \
86                                       char __user *userbuf,             \
87                                       size_t count, loff_t *ppos)       \
88 {                                                                       \
89         struct wl1271 *wl = file->private_data;                         \
90                                                                         \
91         wl1271_debugfs_update_stats(wl);                                \
92                                                                         \
93         return wl1271_format_buffer(userbuf, count, ppos, fmt "\n",     \
94                                     wl->stats.fw_stats->sub.name);      \
95 }                                                                       \
96                                                                         \
97 static const struct file_operations sub## _ ##name## _ops = {           \
98         .read = sub## _ ##name## _read,                                 \
99         .open = simple_open,                                            \
100         .llseek = generic_file_llseek,                                  \
101 };
102
103 #define DEBUGFS_FWSTATS_ADD(sub, name)                          \
104         DEBUGFS_ADD(sub## _ ##name, stats)
105
106 static void wl1271_debugfs_update_stats(struct wl1271 *wl)
107 {
108         int ret;
109
110         mutex_lock(&wl->mutex);
111
112         ret = wl1271_ps_elp_wakeup(wl);
113         if (ret < 0)
114                 goto out;
115
116         if (wl->state == WL1271_STATE_ON && !wl->plt &&
117             time_after(jiffies, wl->stats.fw_stats_update +
118                        msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) {
119                 wl1271_acx_statistics(wl, wl->stats.fw_stats);
120                 wl->stats.fw_stats_update = jiffies;
121         }
122
123         wl1271_ps_elp_sleep(wl);
124
125 out:
126         mutex_unlock(&wl->mutex);
127 }
128
129 DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, "%u");
130
131 DEBUGFS_FWSTATS_FILE(rx, out_of_mem, "%u");
132 DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, "%u");
133 DEBUGFS_FWSTATS_FILE(rx, hw_stuck, "%u");
134 DEBUGFS_FWSTATS_FILE(rx, dropped, "%u");
135 DEBUGFS_FWSTATS_FILE(rx, fcs_err, "%u");
136 DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, "%u");
137 DEBUGFS_FWSTATS_FILE(rx, path_reset, "%u");
138 DEBUGFS_FWSTATS_FILE(rx, reset_counter, "%u");
139
140 DEBUGFS_FWSTATS_FILE(dma, rx_requested, "%u");
141 DEBUGFS_FWSTATS_FILE(dma, rx_errors, "%u");
142 DEBUGFS_FWSTATS_FILE(dma, tx_requested, "%u");
143 DEBUGFS_FWSTATS_FILE(dma, tx_errors, "%u");
144
145 DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, "%u");
146 DEBUGFS_FWSTATS_FILE(isr, fiqs, "%u");
147 DEBUGFS_FWSTATS_FILE(isr, rx_headers, "%u");
148 DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, "%u");
149 DEBUGFS_FWSTATS_FILE(isr, rx_rdys, "%u");
150 DEBUGFS_FWSTATS_FILE(isr, irqs, "%u");
151 DEBUGFS_FWSTATS_FILE(isr, tx_procs, "%u");
152 DEBUGFS_FWSTATS_FILE(isr, decrypt_done, "%u");
153 DEBUGFS_FWSTATS_FILE(isr, dma0_done, "%u");
154 DEBUGFS_FWSTATS_FILE(isr, dma1_done, "%u");
155 DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, "%u");
156 DEBUGFS_FWSTATS_FILE(isr, commands, "%u");
157 DEBUGFS_FWSTATS_FILE(isr, rx_procs, "%u");
158 DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, "%u");
159 DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, "%u");
160 DEBUGFS_FWSTATS_FILE(isr, pci_pm, "%u");
161 DEBUGFS_FWSTATS_FILE(isr, wakeups, "%u");
162 DEBUGFS_FWSTATS_FILE(isr, low_rssi, "%u");
163
164 DEBUGFS_FWSTATS_FILE(wep, addr_key_count, "%u");
165 DEBUGFS_FWSTATS_FILE(wep, default_key_count, "%u");
166 /* skipping wep.reserved */
167 DEBUGFS_FWSTATS_FILE(wep, key_not_found, "%u");
168 DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, "%u");
169 DEBUGFS_FWSTATS_FILE(wep, packets, "%u");
170 DEBUGFS_FWSTATS_FILE(wep, interrupt, "%u");
171
172 DEBUGFS_FWSTATS_FILE(pwr, ps_enter, "%u");
173 DEBUGFS_FWSTATS_FILE(pwr, elp_enter, "%u");
174 DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, "%u");
175 DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, "%u");
176 DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, "%u");
177 DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, "%u");
178 DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, "%u");
179 DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, "%u");
180 DEBUGFS_FWSTATS_FILE(pwr, power_save_off, "%u");
181 DEBUGFS_FWSTATS_FILE(pwr, enable_ps, "%u");
182 DEBUGFS_FWSTATS_FILE(pwr, disable_ps, "%u");
183 DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, "%u");
184 /* skipping cont_miss_bcns_spread for now */
185 DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, "%u");
186
187 DEBUGFS_FWSTATS_FILE(mic, rx_pkts, "%u");
188 DEBUGFS_FWSTATS_FILE(mic, calc_failure, "%u");
189
190 DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, "%u");
191 DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, "%u");
192 DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, "%u");
193 DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, "%u");
194 DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, "%u");
195 DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, "%u");
196
197 DEBUGFS_FWSTATS_FILE(event, heart_beat, "%u");
198 DEBUGFS_FWSTATS_FILE(event, calibration, "%u");
199 DEBUGFS_FWSTATS_FILE(event, rx_mismatch, "%u");
200 DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, "%u");
201 DEBUGFS_FWSTATS_FILE(event, rx_pool, "%u");
202 DEBUGFS_FWSTATS_FILE(event, oom_late, "%u");
203 DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, "%u");
204 DEBUGFS_FWSTATS_FILE(event, tx_stuck, "%u");
205
206 DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, "%u");
207 DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, "%u");
208 DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, "%u");
209 DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, "%u");
210 DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, "%u");
211 DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, "%u");
212 DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, "%u");
213
214 DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, "%u");
215 DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, "%u");
216 DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data, "%u");
217 DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, "%u");
218 DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, "%u");
219
220 DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
221 DEBUGFS_READONLY_FILE(excessive_retries, "%u",
222                       wl->stats.excessive_retries);
223
224 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
225                                  size_t count, loff_t *ppos)
226 {
227         struct wl1271 *wl = file->private_data;
228         u32 queue_len;
229         char buf[20];
230         int res;
231
232         queue_len = wl1271_tx_total_queue_count(wl);
233
234         res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
235         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
236 }
237
238 static const struct file_operations tx_queue_len_ops = {
239         .read = tx_queue_len_read,
240         .open = simple_open,
241         .llseek = default_llseek,
242 };
243
244 static ssize_t gpio_power_read(struct file *file, char __user *user_buf,
245                           size_t count, loff_t *ppos)
246 {
247         struct wl1271 *wl = file->private_data;
248         bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
249
250         int res;
251         char buf[10];
252
253         res = scnprintf(buf, sizeof(buf), "%d\n", state);
254
255         return simple_read_from_buffer(user_buf, count, ppos, buf, res);
256 }
257
258 static ssize_t gpio_power_write(struct file *file,
259                            const char __user *user_buf,
260                            size_t count, loff_t *ppos)
261 {
262         struct wl1271 *wl = file->private_data;
263         unsigned long value;
264         int ret;
265
266         ret = kstrtoul_from_user(user_buf, count, 10, &value);
267         if (ret < 0) {
268                 wl1271_warning("illegal value in gpio_power");
269                 return -EINVAL;
270         }
271
272         mutex_lock(&wl->mutex);
273
274         if (value)
275                 wl1271_power_on(wl);
276         else
277                 wl1271_power_off(wl);
278
279         mutex_unlock(&wl->mutex);
280         return count;
281 }
282
283 static const struct file_operations gpio_power_ops = {
284         .read = gpio_power_read,
285         .write = gpio_power_write,
286         .open = simple_open,
287         .llseek = default_llseek,
288 };
289
290 static ssize_t start_recovery_write(struct file *file,
291                                     const char __user *user_buf,
292                                     size_t count, loff_t *ppos)
293 {
294         struct wl1271 *wl = file->private_data;
295
296         mutex_lock(&wl->mutex);
297         wl12xx_queue_recovery_work(wl);
298         mutex_unlock(&wl->mutex);
299
300         return count;
301 }
302
303 static const struct file_operations start_recovery_ops = {
304         .write = start_recovery_write,
305         .open = simple_open,
306         .llseek = default_llseek,
307 };
308
309 static ssize_t dynamic_ps_timeout_read(struct file *file, char __user *user_buf,
310                           size_t count, loff_t *ppos)
311 {
312         struct wl1271 *wl = file->private_data;
313
314         return wl1271_format_buffer(user_buf, count,
315                                     ppos, "%d\n",
316                                     wl->conf.conn.dynamic_ps_timeout);
317 }
318
319 static ssize_t dynamic_ps_timeout_write(struct file *file,
320                                     const char __user *user_buf,
321                                     size_t count, loff_t *ppos)
322 {
323         struct wl1271 *wl = file->private_data;
324         struct wl12xx_vif *wlvif;
325         unsigned long value;
326         int ret;
327
328         ret = kstrtoul_from_user(user_buf, count, 10, &value);
329         if (ret < 0) {
330                 wl1271_warning("illegal value in dynamic_ps");
331                 return -EINVAL;
332         }
333
334         if (value < 1 || value > 65535) {
335                 wl1271_warning("dyanmic_ps_timeout is not in valid range");
336                 return -ERANGE;
337         }
338
339         mutex_lock(&wl->mutex);
340
341         wl->conf.conn.dynamic_ps_timeout = value;
342
343         if (wl->state == WL1271_STATE_OFF)
344                 goto out;
345
346         ret = wl1271_ps_elp_wakeup(wl);
347         if (ret < 0)
348                 goto out;
349
350         /* In case we're already in PSM, trigger it again to set new timeout
351          * immediately without waiting for re-association
352          */
353
354         wl12xx_for_each_wlvif_sta(wl, wlvif) {
355                 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
356                         wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE);
357         }
358
359         wl1271_ps_elp_sleep(wl);
360
361 out:
362         mutex_unlock(&wl->mutex);
363         return count;
364 }
365
366 static const struct file_operations dynamic_ps_timeout_ops = {
367         .read = dynamic_ps_timeout_read,
368         .write = dynamic_ps_timeout_write,
369         .open = simple_open,
370         .llseek = default_llseek,
371 };
372
373 static ssize_t forced_ps_read(struct file *file, char __user *user_buf,
374                           size_t count, loff_t *ppos)
375 {
376         struct wl1271 *wl = file->private_data;
377
378         return wl1271_format_buffer(user_buf, count,
379                                     ppos, "%d\n",
380                                     wl->conf.conn.forced_ps);
381 }
382
383 static ssize_t forced_ps_write(struct file *file,
384                                     const char __user *user_buf,
385                                     size_t count, loff_t *ppos)
386 {
387         struct wl1271 *wl = file->private_data;
388         struct wl12xx_vif *wlvif;
389         unsigned long value;
390         int ret, ps_mode;
391
392         ret = kstrtoul_from_user(user_buf, count, 10, &value);
393         if (ret < 0) {
394                 wl1271_warning("illegal value in forced_ps");
395                 return -EINVAL;
396         }
397
398         if (value != 1 && value != 0) {
399                 wl1271_warning("forced_ps should be either 0 or 1");
400                 return -ERANGE;
401         }
402
403         mutex_lock(&wl->mutex);
404
405         if (wl->conf.conn.forced_ps == value)
406                 goto out;
407
408         wl->conf.conn.forced_ps = value;
409
410         if (wl->state == WL1271_STATE_OFF)
411                 goto out;
412
413         ret = wl1271_ps_elp_wakeup(wl);
414         if (ret < 0)
415                 goto out;
416
417         /* In case we're already in PSM, trigger it again to switch mode
418          * immediately without waiting for re-association
419          */
420
421         ps_mode = value ? STATION_POWER_SAVE_MODE : STATION_AUTO_PS_MODE;
422
423         wl12xx_for_each_wlvif_sta(wl, wlvif) {
424                 if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
425                         wl1271_ps_set_mode(wl, wlvif, ps_mode);
426         }
427
428         wl1271_ps_elp_sleep(wl);
429
430 out:
431         mutex_unlock(&wl->mutex);
432         return count;
433 }
434
435 static const struct file_operations forced_ps_ops = {
436         .read = forced_ps_read,
437         .write = forced_ps_write,
438         .open = simple_open,
439         .llseek = default_llseek,
440 };
441
442 static ssize_t split_scan_timeout_read(struct file *file, char __user *user_buf,
443                           size_t count, loff_t *ppos)
444 {
445         struct wl1271 *wl = file->private_data;
446
447         return wl1271_format_buffer(user_buf, count,
448                                     ppos, "%d\n",
449                                     wl->conf.scan.split_scan_timeout / 1000);
450 }
451
452 static ssize_t split_scan_timeout_write(struct file *file,
453                                     const char __user *user_buf,
454                                     size_t count, loff_t *ppos)
455 {
456         struct wl1271 *wl = file->private_data;
457         unsigned long value;
458         int ret;
459
460         ret = kstrtoul_from_user(user_buf, count, 10, &value);
461         if (ret < 0) {
462                 wl1271_warning("illegal value in split_scan_timeout");
463                 return -EINVAL;
464         }
465
466         if (value == 0)
467                 wl1271_info("split scan will be disabled");
468
469         mutex_lock(&wl->mutex);
470
471         wl->conf.scan.split_scan_timeout = value * 1000;
472
473         mutex_unlock(&wl->mutex);
474         return count;
475 }
476
477 static const struct file_operations split_scan_timeout_ops = {
478         .read = split_scan_timeout_read,
479         .write = split_scan_timeout_write,
480         .open = simple_open,
481         .llseek = default_llseek,
482 };
483
484 static ssize_t driver_state_read(struct file *file, char __user *user_buf,
485                                  size_t count, loff_t *ppos)
486 {
487         struct wl1271 *wl = file->private_data;
488         int res = 0;
489         ssize_t ret;
490         char *buf;
491
492 #define DRIVER_STATE_BUF_LEN 1024
493
494         buf = kmalloc(DRIVER_STATE_BUF_LEN, GFP_KERNEL);
495         if (!buf)
496                 return -ENOMEM;
497
498         mutex_lock(&wl->mutex);
499
500 #define DRIVER_STATE_PRINT(x, fmt)   \
501         (res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\
502                           #x " = " fmt "\n", wl->x))
503
504 #define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld")
505 #define DRIVER_STATE_PRINT_INT(x)  DRIVER_STATE_PRINT(x, "%d")
506 #define DRIVER_STATE_PRINT_STR(x)  DRIVER_STATE_PRINT(x, "%s")
507 #define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx")
508 #define DRIVER_STATE_PRINT_HEX(x)  DRIVER_STATE_PRINT(x, "0x%x")
509
510         DRIVER_STATE_PRINT_INT(tx_blocks_available);
511         DRIVER_STATE_PRINT_INT(tx_allocated_blocks);
512         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]);
513         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[1]);
514         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[2]);
515         DRIVER_STATE_PRINT_INT(tx_allocated_pkts[3]);
516         DRIVER_STATE_PRINT_INT(tx_frames_cnt);
517         DRIVER_STATE_PRINT_LHEX(tx_frames_map[0]);
518         DRIVER_STATE_PRINT_INT(tx_queue_count[0]);
519         DRIVER_STATE_PRINT_INT(tx_queue_count[1]);
520         DRIVER_STATE_PRINT_INT(tx_queue_count[2]);
521         DRIVER_STATE_PRINT_INT(tx_queue_count[3]);
522         DRIVER_STATE_PRINT_INT(tx_packets_count);
523         DRIVER_STATE_PRINT_INT(tx_results_count);
524         DRIVER_STATE_PRINT_LHEX(flags);
525         DRIVER_STATE_PRINT_INT(tx_blocks_freed);
526         DRIVER_STATE_PRINT_INT(rx_counter);
527         DRIVER_STATE_PRINT_INT(state);
528         DRIVER_STATE_PRINT_INT(channel);
529         DRIVER_STATE_PRINT_INT(band);
530         DRIVER_STATE_PRINT_INT(power_level);
531         DRIVER_STATE_PRINT_INT(sg_enabled);
532         DRIVER_STATE_PRINT_INT(enable_11a);
533         DRIVER_STATE_PRINT_INT(noise);
534         DRIVER_STATE_PRINT_HEX(ap_fw_ps_map);
535         DRIVER_STATE_PRINT_LHEX(ap_ps_map);
536         DRIVER_STATE_PRINT_HEX(quirks);
537         DRIVER_STATE_PRINT_HEX(irq);
538         DRIVER_STATE_PRINT_HEX(ref_clock);
539         DRIVER_STATE_PRINT_HEX(tcxo_clock);
540         DRIVER_STATE_PRINT_HEX(hw_pg_ver);
541         DRIVER_STATE_PRINT_HEX(platform_quirks);
542         DRIVER_STATE_PRINT_HEX(chip.id);
543         DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
544         DRIVER_STATE_PRINT_INT(sched_scanning);
545
546 #undef DRIVER_STATE_PRINT_INT
547 #undef DRIVER_STATE_PRINT_LONG
548 #undef DRIVER_STATE_PRINT_HEX
549 #undef DRIVER_STATE_PRINT_LHEX
550 #undef DRIVER_STATE_PRINT_STR
551 #undef DRIVER_STATE_PRINT
552 #undef DRIVER_STATE_BUF_LEN
553
554         mutex_unlock(&wl->mutex);
555
556         ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
557         kfree(buf);
558         return ret;
559 }
560
561 static const struct file_operations driver_state_ops = {
562         .read = driver_state_read,
563         .open = simple_open,
564         .llseek = default_llseek,
565 };
566
567 static ssize_t vifs_state_read(struct file *file, char __user *user_buf,
568                                  size_t count, loff_t *ppos)
569 {
570         struct wl1271 *wl = file->private_data;
571         struct wl12xx_vif *wlvif;
572         int ret, res = 0;
573         const int buf_size = 4096;
574         char *buf;
575         char tmp_buf[64];
576
577         buf = kzalloc(buf_size, GFP_KERNEL);
578         if (!buf)
579                 return -ENOMEM;
580
581         mutex_lock(&wl->mutex);
582
583 #define VIF_STATE_PRINT(x, fmt)                         \
584         (res += scnprintf(buf + res, buf_size - res,    \
585                           #x " = " fmt "\n", wlvif->x))
586
587 #define VIF_STATE_PRINT_LONG(x)  VIF_STATE_PRINT(x, "%ld")
588 #define VIF_STATE_PRINT_INT(x)   VIF_STATE_PRINT(x, "%d")
589 #define VIF_STATE_PRINT_STR(x)   VIF_STATE_PRINT(x, "%s")
590 #define VIF_STATE_PRINT_LHEX(x)  VIF_STATE_PRINT(x, "0x%lx")
591 #define VIF_STATE_PRINT_LLHEX(x) VIF_STATE_PRINT(x, "0x%llx")
592 #define VIF_STATE_PRINT_HEX(x)   VIF_STATE_PRINT(x, "0x%x")
593
594 #define VIF_STATE_PRINT_NSTR(x, len)                            \
595         do {                                                    \
596                 memset(tmp_buf, 0, sizeof(tmp_buf));            \
597                 memcpy(tmp_buf, wlvif->x,                       \
598                        min_t(u8, len, sizeof(tmp_buf) - 1));    \
599                 res += scnprintf(buf + res, buf_size - res,     \
600                                  #x " = %s\n", tmp_buf);        \
601         } while (0)
602
603         wl12xx_for_each_wlvif(wl, wlvif) {
604                 VIF_STATE_PRINT_INT(role_id);
605                 VIF_STATE_PRINT_INT(bss_type);
606                 VIF_STATE_PRINT_LHEX(flags);
607                 VIF_STATE_PRINT_INT(p2p);
608                 VIF_STATE_PRINT_INT(dev_role_id);
609                 VIF_STATE_PRINT_INT(dev_hlid);
610
611                 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
612                     wlvif->bss_type == BSS_TYPE_IBSS) {
613                         VIF_STATE_PRINT_INT(sta.hlid);
614                         VIF_STATE_PRINT_INT(sta.ba_rx_bitmap);
615                         VIF_STATE_PRINT_INT(sta.basic_rate_idx);
616                         VIF_STATE_PRINT_INT(sta.ap_rate_idx);
617                         VIF_STATE_PRINT_INT(sta.p2p_rate_idx);
618                         VIF_STATE_PRINT_INT(sta.qos);
619                 } else {
620                         VIF_STATE_PRINT_INT(ap.global_hlid);
621                         VIF_STATE_PRINT_INT(ap.bcast_hlid);
622                         VIF_STATE_PRINT_LHEX(ap.sta_hlid_map[0]);
623                         VIF_STATE_PRINT_INT(ap.mgmt_rate_idx);
624                         VIF_STATE_PRINT_INT(ap.bcast_rate_idx);
625                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[0]);
626                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[1]);
627                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[2]);
628                         VIF_STATE_PRINT_INT(ap.ucast_rate_idx[3]);
629                 }
630                 VIF_STATE_PRINT_INT(last_tx_hlid);
631                 VIF_STATE_PRINT_LHEX(links_map[0]);
632                 VIF_STATE_PRINT_NSTR(ssid, wlvif->ssid_len);
633                 VIF_STATE_PRINT_INT(band);
634                 VIF_STATE_PRINT_INT(channel);
635                 VIF_STATE_PRINT_HEX(bitrate_masks[0]);
636                 VIF_STATE_PRINT_HEX(bitrate_masks[1]);
637                 VIF_STATE_PRINT_HEX(basic_rate_set);
638                 VIF_STATE_PRINT_HEX(basic_rate);
639                 VIF_STATE_PRINT_HEX(rate_set);
640                 VIF_STATE_PRINT_INT(beacon_int);
641                 VIF_STATE_PRINT_INT(default_key);
642                 VIF_STATE_PRINT_INT(aid);
643                 VIF_STATE_PRINT_INT(session_counter);
644                 VIF_STATE_PRINT_INT(psm_entry_retry);
645                 VIF_STATE_PRINT_INT(power_level);
646                 VIF_STATE_PRINT_INT(rssi_thold);
647                 VIF_STATE_PRINT_INT(last_rssi_event);
648                 VIF_STATE_PRINT_INT(ba_support);
649                 VIF_STATE_PRINT_INT(ba_allowed);
650                 VIF_STATE_PRINT_LLHEX(tx_security_seq);
651                 VIF_STATE_PRINT_INT(tx_security_last_seq_lsb);
652         }
653
654 #undef VIF_STATE_PRINT_INT
655 #undef VIF_STATE_PRINT_LONG
656 #undef VIF_STATE_PRINT_HEX
657 #undef VIF_STATE_PRINT_LHEX
658 #undef VIF_STATE_PRINT_LLHEX
659 #undef VIF_STATE_PRINT_STR
660 #undef VIF_STATE_PRINT_NSTR
661 #undef VIF_STATE_PRINT
662
663         mutex_unlock(&wl->mutex);
664
665         ret = simple_read_from_buffer(user_buf, count, ppos, buf, res);
666         kfree(buf);
667         return ret;
668 }
669
670 static const struct file_operations vifs_state_ops = {
671         .read = vifs_state_read,
672         .open = simple_open,
673         .llseek = default_llseek,
674 };
675
676 static ssize_t dtim_interval_read(struct file *file, char __user *user_buf,
677                                   size_t count, loff_t *ppos)
678 {
679         struct wl1271 *wl = file->private_data;
680         u8 value;
681
682         if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
683             wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
684                 value = wl->conf.conn.listen_interval;
685         else
686                 value = 0;
687
688         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
689 }
690
691 static ssize_t dtim_interval_write(struct file *file,
692                                    const char __user *user_buf,
693                                    size_t count, loff_t *ppos)
694 {
695         struct wl1271 *wl = file->private_data;
696         unsigned long value;
697         int ret;
698
699         ret = kstrtoul_from_user(user_buf, count, 10, &value);
700         if (ret < 0) {
701                 wl1271_warning("illegal value for dtim_interval");
702                 return -EINVAL;
703         }
704
705         if (value < 1 || value > 10) {
706                 wl1271_warning("dtim value is not in valid range");
707                 return -ERANGE;
708         }
709
710         mutex_lock(&wl->mutex);
711
712         wl->conf.conn.listen_interval = value;
713         /* for some reason there are different event types for 1 and >1 */
714         if (value == 1)
715                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
716         else
717                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
718
719         /*
720          * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
721          * take effect on the next time we enter psm.
722          */
723         mutex_unlock(&wl->mutex);
724         return count;
725 }
726
727 static const struct file_operations dtim_interval_ops = {
728         .read = dtim_interval_read,
729         .write = dtim_interval_write,
730         .open = simple_open,
731         .llseek = default_llseek,
732 };
733
734
735
736 static ssize_t suspend_dtim_interval_read(struct file *file,
737                                           char __user *user_buf,
738                                           size_t count, loff_t *ppos)
739 {
740         struct wl1271 *wl = file->private_data;
741         u8 value;
742
743         if (wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
744             wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
745                 value = wl->conf.conn.suspend_listen_interval;
746         else
747                 value = 0;
748
749         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
750 }
751
752 static ssize_t suspend_dtim_interval_write(struct file *file,
753                                            const char __user *user_buf,
754                                            size_t count, loff_t *ppos)
755 {
756         struct wl1271 *wl = file->private_data;
757         unsigned long value;
758         int ret;
759
760         ret = kstrtoul_from_user(user_buf, count, 10, &value);
761         if (ret < 0) {
762                 wl1271_warning("illegal value for suspend_dtim_interval");
763                 return -EINVAL;
764         }
765
766         if (value < 1 || value > 10) {
767                 wl1271_warning("suspend_dtim value is not in valid range");
768                 return -ERANGE;
769         }
770
771         mutex_lock(&wl->mutex);
772
773         wl->conf.conn.suspend_listen_interval = value;
774         /* for some reason there are different event types for 1 and >1 */
775         if (value == 1)
776                 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
777         else
778                 wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
779
780         mutex_unlock(&wl->mutex);
781         return count;
782 }
783
784
785 static const struct file_operations suspend_dtim_interval_ops = {
786         .read = suspend_dtim_interval_read,
787         .write = suspend_dtim_interval_write,
788         .open = simple_open,
789         .llseek = default_llseek,
790 };
791
792 static ssize_t beacon_interval_read(struct file *file, char __user *user_buf,
793                                     size_t count, loff_t *ppos)
794 {
795         struct wl1271 *wl = file->private_data;
796         u8 value;
797
798         if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON ||
799             wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS)
800                 value = wl->conf.conn.listen_interval;
801         else
802                 value = 0;
803
804         return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
805 }
806
807 static ssize_t beacon_interval_write(struct file *file,
808                                      const char __user *user_buf,
809                                      size_t count, loff_t *ppos)
810 {
811         struct wl1271 *wl = file->private_data;
812         unsigned long value;
813         int ret;
814
815         ret = kstrtoul_from_user(user_buf, count, 10, &value);
816         if (ret < 0) {
817                 wl1271_warning("illegal value for beacon_interval");
818                 return -EINVAL;
819         }
820
821         if (value < 1 || value > 255) {
822                 wl1271_warning("beacon interval value is not in valid range");
823                 return -ERANGE;
824         }
825
826         mutex_lock(&wl->mutex);
827
828         wl->conf.conn.listen_interval = value;
829         /* for some reason there are different event types for 1 and >1 */
830         if (value == 1)
831                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON;
832         else
833                 wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS;
834
835         /*
836          * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
837          * take effect on the next time we enter psm.
838          */
839         mutex_unlock(&wl->mutex);
840         return count;
841 }
842
843 static const struct file_operations beacon_interval_ops = {
844         .read = beacon_interval_read,
845         .write = beacon_interval_write,
846         .open = simple_open,
847         .llseek = default_llseek,
848 };
849
850 static ssize_t rx_streaming_interval_write(struct file *file,
851                            const char __user *user_buf,
852                            size_t count, loff_t *ppos)
853 {
854         struct wl1271 *wl = file->private_data;
855         struct wl12xx_vif *wlvif;
856         unsigned long value;
857         int ret;
858
859         ret = kstrtoul_from_user(user_buf, count, 10, &value);
860         if (ret < 0) {
861                 wl1271_warning("illegal value in rx_streaming_interval!");
862                 return -EINVAL;
863         }
864
865         /* valid values: 0, 10-100 */
866         if (value && (value < 10 || value > 100)) {
867                 wl1271_warning("value is not in range!");
868                 return -ERANGE;
869         }
870
871         mutex_lock(&wl->mutex);
872
873         wl->conf.rx_streaming.interval = value;
874
875         ret = wl1271_ps_elp_wakeup(wl);
876         if (ret < 0)
877                 goto out;
878
879         wl12xx_for_each_wlvif_sta(wl, wlvif) {
880                 wl1271_recalc_rx_streaming(wl, wlvif);
881         }
882
883         wl1271_ps_elp_sleep(wl);
884 out:
885         mutex_unlock(&wl->mutex);
886         return count;
887 }
888
889 static ssize_t rx_streaming_interval_read(struct file *file,
890                             char __user *userbuf,
891                             size_t count, loff_t *ppos)
892 {
893         struct wl1271 *wl = file->private_data;
894         return wl1271_format_buffer(userbuf, count, ppos,
895                                     "%d\n", wl->conf.rx_streaming.interval);
896 }
897
898 static const struct file_operations rx_streaming_interval_ops = {
899         .read = rx_streaming_interval_read,
900         .write = rx_streaming_interval_write,
901         .open = simple_open,
902         .llseek = default_llseek,
903 };
904
905 static ssize_t rx_streaming_always_write(struct file *file,
906                            const char __user *user_buf,
907                            size_t count, loff_t *ppos)
908 {
909         struct wl1271 *wl = file->private_data;
910         struct wl12xx_vif *wlvif;
911         unsigned long value;
912         int ret;
913
914         ret = kstrtoul_from_user(user_buf, count, 10, &value);
915         if (ret < 0) {
916                 wl1271_warning("illegal value in rx_streaming_write!");
917                 return -EINVAL;
918         }
919
920         /* valid values: 0, 10-100 */
921         if (!(value == 0 || value == 1)) {
922                 wl1271_warning("value is not in valid!");
923                 return -EINVAL;
924         }
925
926         mutex_lock(&wl->mutex);
927
928         wl->conf.rx_streaming.always = value;
929
930         ret = wl1271_ps_elp_wakeup(wl);
931         if (ret < 0)
932                 goto out;
933
934         wl12xx_for_each_wlvif_sta(wl, wlvif) {
935                 wl1271_recalc_rx_streaming(wl, wlvif);
936         }
937
938         wl1271_ps_elp_sleep(wl);
939 out:
940         mutex_unlock(&wl->mutex);
941         return count;
942 }
943
944 static ssize_t rx_streaming_always_read(struct file *file,
945                             char __user *userbuf,
946                             size_t count, loff_t *ppos)
947 {
948         struct wl1271 *wl = file->private_data;
949         return wl1271_format_buffer(userbuf, count, ppos,
950                                     "%d\n", wl->conf.rx_streaming.always);
951 }
952
953 static const struct file_operations rx_streaming_always_ops = {
954         .read = rx_streaming_always_read,
955         .write = rx_streaming_always_write,
956         .open = simple_open,
957         .llseek = default_llseek,
958 };
959
960 static ssize_t beacon_filtering_write(struct file *file,
961                                       const char __user *user_buf,
962                                       size_t count, loff_t *ppos)
963 {
964         struct wl1271 *wl = file->private_data;
965         struct wl12xx_vif *wlvif;
966         char buf[10];
967         size_t len;
968         unsigned long value;
969         int ret;
970
971         len = min(count, sizeof(buf) - 1);
972         if (copy_from_user(buf, user_buf, len))
973                 return -EFAULT;
974         buf[len] = '\0';
975
976         ret = kstrtoul(buf, 0, &value);
977         if (ret < 0) {
978                 wl1271_warning("illegal value for beacon_filtering!");
979                 return -EINVAL;
980         }
981
982         mutex_lock(&wl->mutex);
983
984         ret = wl1271_ps_elp_wakeup(wl);
985         if (ret < 0)
986                 goto out;
987
988         wl12xx_for_each_wlvif(wl, wlvif) {
989                 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, !!value);
990         }
991
992         wl1271_ps_elp_sleep(wl);
993 out:
994         mutex_unlock(&wl->mutex);
995         return count;
996 }
997
998 static const struct file_operations beacon_filtering_ops = {
999         .write = beacon_filtering_write,
1000         .open = simple_open,
1001         .llseek = default_llseek,
1002 };
1003
1004 static int wl1271_debugfs_add_files(struct wl1271 *wl,
1005                                      struct dentry *rootdir)
1006 {
1007         int ret = 0;
1008         struct dentry *entry, *stats, *streaming;
1009
1010         stats = debugfs_create_dir("fw-statistics", rootdir);
1011         if (!stats || IS_ERR(stats)) {
1012                 entry = stats;
1013                 goto err;
1014         }
1015
1016         DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
1017
1018         DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
1019         DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
1020         DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
1021         DEBUGFS_FWSTATS_ADD(rx, dropped);
1022         DEBUGFS_FWSTATS_ADD(rx, fcs_err);
1023         DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
1024         DEBUGFS_FWSTATS_ADD(rx, path_reset);
1025         DEBUGFS_FWSTATS_ADD(rx, reset_counter);
1026
1027         DEBUGFS_FWSTATS_ADD(dma, rx_requested);
1028         DEBUGFS_FWSTATS_ADD(dma, rx_errors);
1029         DEBUGFS_FWSTATS_ADD(dma, tx_requested);
1030         DEBUGFS_FWSTATS_ADD(dma, tx_errors);
1031
1032         DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
1033         DEBUGFS_FWSTATS_ADD(isr, fiqs);
1034         DEBUGFS_FWSTATS_ADD(isr, rx_headers);
1035         DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
1036         DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
1037         DEBUGFS_FWSTATS_ADD(isr, irqs);
1038         DEBUGFS_FWSTATS_ADD(isr, tx_procs);
1039         DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
1040         DEBUGFS_FWSTATS_ADD(isr, dma0_done);
1041         DEBUGFS_FWSTATS_ADD(isr, dma1_done);
1042         DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
1043         DEBUGFS_FWSTATS_ADD(isr, commands);
1044         DEBUGFS_FWSTATS_ADD(isr, rx_procs);
1045         DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
1046         DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
1047         DEBUGFS_FWSTATS_ADD(isr, pci_pm);
1048         DEBUGFS_FWSTATS_ADD(isr, wakeups);
1049         DEBUGFS_FWSTATS_ADD(isr, low_rssi);
1050
1051         DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
1052         DEBUGFS_FWSTATS_ADD(wep, default_key_count);
1053         /* skipping wep.reserved */
1054         DEBUGFS_FWSTATS_ADD(wep, key_not_found);
1055         DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
1056         DEBUGFS_FWSTATS_ADD(wep, packets);
1057         DEBUGFS_FWSTATS_ADD(wep, interrupt);
1058
1059         DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
1060         DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
1061         DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
1062         DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
1063         DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
1064         DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
1065         DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
1066         DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
1067         DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
1068         DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
1069         DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
1070         DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
1071         /* skipping cont_miss_bcns_spread for now */
1072         DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);
1073
1074         DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
1075         DEBUGFS_FWSTATS_ADD(mic, calc_failure);
1076
1077         DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
1078         DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
1079         DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
1080         DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
1081         DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
1082         DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);
1083
1084         DEBUGFS_FWSTATS_ADD(event, heart_beat);
1085         DEBUGFS_FWSTATS_ADD(event, calibration);
1086         DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
1087         DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
1088         DEBUGFS_FWSTATS_ADD(event, rx_pool);
1089         DEBUGFS_FWSTATS_ADD(event, oom_late);
1090         DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
1091         DEBUGFS_FWSTATS_ADD(event, tx_stuck);
1092
1093         DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
1094         DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
1095         DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
1096         DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
1097         DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
1098         DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
1099         DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);
1100
1101         DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
1102         DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
1103         DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
1104         DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
1105         DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
1106
1107         DEBUGFS_ADD(tx_queue_len, rootdir);
1108         DEBUGFS_ADD(retry_count, rootdir);
1109         DEBUGFS_ADD(excessive_retries, rootdir);
1110
1111         DEBUGFS_ADD(gpio_power, rootdir);
1112         DEBUGFS_ADD(start_recovery, rootdir);
1113         DEBUGFS_ADD(driver_state, rootdir);
1114         DEBUGFS_ADD(vifs_state, rootdir);
1115         DEBUGFS_ADD(dtim_interval, rootdir);
1116         DEBUGFS_ADD(suspend_dtim_interval, rootdir);
1117         DEBUGFS_ADD(beacon_interval, rootdir);
1118         DEBUGFS_ADD(beacon_filtering, rootdir);
1119         DEBUGFS_ADD(dynamic_ps_timeout, rootdir);
1120         DEBUGFS_ADD(forced_ps, rootdir);
1121         DEBUGFS_ADD(split_scan_timeout, rootdir);
1122
1123         streaming = debugfs_create_dir("rx_streaming", rootdir);
1124         if (!streaming || IS_ERR(streaming))
1125                 goto err;
1126
1127         DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming);
1128         DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming);
1129
1130
1131         return 0;
1132
1133 err:
1134         if (IS_ERR(entry))
1135                 ret = PTR_ERR(entry);
1136         else
1137                 ret = -ENOMEM;
1138
1139         return ret;
1140 }
1141
1142 void wl1271_debugfs_reset(struct wl1271 *wl)
1143 {
1144         if (!wl->stats.fw_stats)
1145                 return;
1146
1147         memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
1148         wl->stats.retry_count = 0;
1149         wl->stats.excessive_retries = 0;
1150 }
1151
1152 int wl1271_debugfs_init(struct wl1271 *wl)
1153 {
1154         int ret;
1155         struct dentry *rootdir;
1156
1157         rootdir = debugfs_create_dir(KBUILD_MODNAME,
1158                                      wl->hw->wiphy->debugfsdir);
1159
1160         if (IS_ERR(rootdir)) {
1161                 ret = PTR_ERR(rootdir);
1162                 goto err;
1163         }
1164
1165         wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats),
1166                                       GFP_KERNEL);
1167
1168         if (!wl->stats.fw_stats) {
1169                 ret = -ENOMEM;
1170                 goto err_fw;
1171         }
1172
1173         wl->stats.fw_stats_update = jiffies;
1174
1175         ret = wl1271_debugfs_add_files(wl, rootdir);
1176
1177         if (ret < 0)
1178                 goto err_file;
1179
1180         return 0;
1181
1182 err_file:
1183         kfree(wl->stats.fw_stats);
1184         wl->stats.fw_stats = NULL;
1185
1186 err_fw:
1187         debugfs_remove_recursive(rootdir);
1188
1189 err:
1190         return ret;
1191 }
1192
1193 void wl1271_debugfs_exit(struct wl1271 *wl)
1194 {
1195         kfree(wl->stats.fw_stats);
1196         wl->stats.fw_stats = NULL;
1197 }