1 /*
2 * This file is part of wl1251
3 *
4 * Copyright (C) 2009 Nokia Corporation
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2 as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18 * 02110-1301 USA
19 *
20 */
21
22 #include "debugfs.h"
23
24 #include <linux/skbuff.h>
25 #include <linux/slab.h>
26
27 #include "wl1251.h"
28 #include "acx.h"
29 #include "ps.h"
30
31 /* ms */
32 #define WL1251_DEBUGFS_STATS_LIFETIME 1000
33
34 /* debugfs macros idea from mac80211 */
35
36 #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
37 static ssize_t name## _read(struct file *file, char __user *userbuf, \
38 size_t count, loff_t *ppos) \
39 { \
40 struct wl1251 *wl = file->private_data; \
41 char buf[buflen]; \
42 int res; \
43 \
44 res = scnprintf(buf, buflen, fmt "\n", ##value); \
45 return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
46 } \
47 \
48 static const struct file_operations name## _ops = { \
49 .read = name## _read, \
50 .open = wl1251_open_file_generic, \
51 .llseek = generic_file_llseek, \
52 };
53
54 #define DEBUGFS_ADD(name, parent) \
55 wl->debugfs.name = debugfs_create_file(#name, 0400, parent, \
56 wl, &name## _ops); \
57 if (IS_ERR(wl->debugfs.name)) { \
58 ret = PTR_ERR(wl->debugfs.name); \
59 wl->debugfs.name = NULL; \
60 goto out; \
61 }
62
63 #define DEBUGFS_DEL(name) \
64 do { \
65 debugfs_remove(wl->debugfs.name); \
66 wl->debugfs.name = NULL; \
67 } while (0)
68
69 #define DEBUGFS_FWSTATS_FILE(sub, name, buflen, fmt) \
70 static ssize_t sub## _ ##name## _read(struct file *file, \
71 char __user *userbuf, \
72 size_t count, loff_t *ppos) \
73 { \
74 struct wl1251 *wl = file->private_data; \
75 char buf[buflen]; \
76 int res; \
77 \
78 wl1251_debugfs_update_stats(wl); \
79 \
80 res = scnprintf(buf, buflen, fmt "\n", \
81 wl->stats.fw_stats->sub.name); \
82 return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
83 } \
84 \
85 static const struct file_operations sub## _ ##name## _ops = { \
86 .read = sub## _ ##name## _read, \
87 .open = wl1251_open_file_generic, \
88 .llseek = generic_file_llseek, \
89 };
90
91 #define DEBUGFS_FWSTATS_ADD(sub, name) \
92 DEBUGFS_ADD(sub## _ ##name, wl->debugfs.fw_statistics)
93
94 #define DEBUGFS_FWSTATS_DEL(sub, name) \
95 DEBUGFS_DEL(sub## _ ##name)
96
wl1251_debugfs_update_stats(struct wl1251 * wl)97 static void wl1251_debugfs_update_stats(struct wl1251 *wl)
98 {
99 int ret;
100
101 mutex_lock(&wl->mutex);
102
103 ret = wl1251_ps_elp_wakeup(wl);
104 if (ret < 0)
105 goto out;
106
107 if (wl->state == WL1251_STATE_ON &&
108 time_after(jiffies, wl->stats.fw_stats_update +
109 msecs_to_jiffies(WL1251_DEBUGFS_STATS_LIFETIME))) {
110 wl1251_acx_statistics(wl, wl->stats.fw_stats);
111 wl->stats.fw_stats_update = jiffies;
112 }
113
114 wl1251_ps_elp_sleep(wl);
115
116 out:
117 mutex_unlock(&wl->mutex);
118 }
119
wl1251_open_file_generic(struct inode * inode,struct file * file)120 static int wl1251_open_file_generic(struct inode *inode, struct file *file)
121 {
122 file->private_data = inode->i_private;
123 return 0;
124 }
125
126 DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, 20, "%u");
127
128 DEBUGFS_FWSTATS_FILE(rx, out_of_mem, 20, "%u");
129 DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, 20, "%u");
130 DEBUGFS_FWSTATS_FILE(rx, hw_stuck, 20, "%u");
131 DEBUGFS_FWSTATS_FILE(rx, dropped, 20, "%u");
132 DEBUGFS_FWSTATS_FILE(rx, fcs_err, 20, "%u");
133 DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, 20, "%u");
134 DEBUGFS_FWSTATS_FILE(rx, path_reset, 20, "%u");
135 DEBUGFS_FWSTATS_FILE(rx, reset_counter, 20, "%u");
136
137 DEBUGFS_FWSTATS_FILE(dma, rx_requested, 20, "%u");
138 DEBUGFS_FWSTATS_FILE(dma, rx_errors, 20, "%u");
139 DEBUGFS_FWSTATS_FILE(dma, tx_requested, 20, "%u");
140 DEBUGFS_FWSTATS_FILE(dma, tx_errors, 20, "%u");
141
142 DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, 20, "%u");
143 DEBUGFS_FWSTATS_FILE(isr, fiqs, 20, "%u");
144 DEBUGFS_FWSTATS_FILE(isr, rx_headers, 20, "%u");
145 DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, 20, "%u");
146 DEBUGFS_FWSTATS_FILE(isr, rx_rdys, 20, "%u");
147 DEBUGFS_FWSTATS_FILE(isr, irqs, 20, "%u");
148 DEBUGFS_FWSTATS_FILE(isr, tx_procs, 20, "%u");
149 DEBUGFS_FWSTATS_FILE(isr, decrypt_done, 20, "%u");
150 DEBUGFS_FWSTATS_FILE(isr, dma0_done, 20, "%u");
151 DEBUGFS_FWSTATS_FILE(isr, dma1_done, 20, "%u");
152 DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, 20, "%u");
153 DEBUGFS_FWSTATS_FILE(isr, commands, 20, "%u");
154 DEBUGFS_FWSTATS_FILE(isr, rx_procs, 20, "%u");
155 DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, 20, "%u");
156 DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, 20, "%u");
157 DEBUGFS_FWSTATS_FILE(isr, pci_pm, 20, "%u");
158 DEBUGFS_FWSTATS_FILE(isr, wakeups, 20, "%u");
159 DEBUGFS_FWSTATS_FILE(isr, low_rssi, 20, "%u");
160
161 DEBUGFS_FWSTATS_FILE(wep, addr_key_count, 20, "%u");
162 DEBUGFS_FWSTATS_FILE(wep, default_key_count, 20, "%u");
163 /* skipping wep.reserved */
164 DEBUGFS_FWSTATS_FILE(wep, key_not_found, 20, "%u");
165 DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, 20, "%u");
166 DEBUGFS_FWSTATS_FILE(wep, packets, 20, "%u");
167 DEBUGFS_FWSTATS_FILE(wep, interrupt, 20, "%u");
168
169 DEBUGFS_FWSTATS_FILE(pwr, ps_enter, 20, "%u");
170 DEBUGFS_FWSTATS_FILE(pwr, elp_enter, 20, "%u");
171 DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, 20, "%u");
172 DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, 20, "%u");
173 DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, 20, "%u");
174 DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, 20, "%u");
175 DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, 20, "%u");
176 DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, 20, "%u");
177 DEBUGFS_FWSTATS_FILE(pwr, power_save_off, 20, "%u");
178 DEBUGFS_FWSTATS_FILE(pwr, enable_ps, 20, "%u");
179 DEBUGFS_FWSTATS_FILE(pwr, disable_ps, 20, "%u");
180 DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, 20, "%u");
181 /* skipping cont_miss_bcns_spread for now */
182 DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, 20, "%u");
183
184 DEBUGFS_FWSTATS_FILE(mic, rx_pkts, 20, "%u");
185 DEBUGFS_FWSTATS_FILE(mic, calc_failure, 20, "%u");
186
187 DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, 20, "%u");
188 DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, 20, "%u");
189 DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, 20, "%u");
190 DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, 20, "%u");
191 DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, 20, "%u");
192 DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, 20, "%u");
193
194 DEBUGFS_FWSTATS_FILE(event, heart_beat, 20, "%u");
195 DEBUGFS_FWSTATS_FILE(event, calibration, 20, "%u");
196 DEBUGFS_FWSTATS_FILE(event, rx_mismatch, 20, "%u");
197 DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, 20, "%u");
198 DEBUGFS_FWSTATS_FILE(event, rx_pool, 20, "%u");
199 DEBUGFS_FWSTATS_FILE(event, oom_late, 20, "%u");
200 DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, 20, "%u");
201 DEBUGFS_FWSTATS_FILE(event, tx_stuck, 20, "%u");
202
203 DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, 20, "%u");
204 DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, 20, "%u");
205 DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, 20, "%u");
206 DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, 20, "%u");
207 DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, 20, "%u");
208 DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, 20, "%u");
209 DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, 20, "%u");
210
211 DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, 20, "%u");
212 DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, 20, "%u");
213 DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data,
214 20, "%u");
215 DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, 20, "%u");
216 DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, 20, "%u");
217
218 DEBUGFS_READONLY_FILE(retry_count, 20, "%u", wl->stats.retry_count);
219 DEBUGFS_READONLY_FILE(excessive_retries, 20, "%u",
220 wl->stats.excessive_retries);
221
tx_queue_len_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)222 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
223 size_t count, loff_t *ppos)
224 {
225 struct wl1251 *wl = file->private_data;
226 u32 queue_len;
227 char buf[20];
228 int res;
229
230 queue_len = skb_queue_len(&wl->tx_queue);
231
232 res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
233 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
234 }
235
236 static const struct file_operations tx_queue_len_ops = {
237 .read = tx_queue_len_read,
238 .open = wl1251_open_file_generic,
239 .llseek = generic_file_llseek,
240 };
241
tx_queue_status_read(struct file * file,char __user * userbuf,size_t count,loff_t * ppos)242 static ssize_t tx_queue_status_read(struct file *file, char __user *userbuf,
243 size_t count, loff_t *ppos)
244 {
245 struct wl1251 *wl = file->private_data;
246 char buf[3], status;
247 int len;
248
249 if (wl->tx_queue_stopped)
250 status = 's';
251 else
252 status = 'r';
253
254 len = scnprintf(buf, sizeof(buf), "%c\n", status);
255 return simple_read_from_buffer(userbuf, count, ppos, buf, len);
256 }
257
258 static const struct file_operations tx_queue_status_ops = {
259 .read = tx_queue_status_read,
260 .open = wl1251_open_file_generic,
261 .llseek = generic_file_llseek,
262 };
263
wl1251_debugfs_delete_files(struct wl1251 * wl)264 static void wl1251_debugfs_delete_files(struct wl1251 *wl)
265 {
266 DEBUGFS_FWSTATS_DEL(tx, internal_desc_overflow);
267
268 DEBUGFS_FWSTATS_DEL(rx, out_of_mem);
269 DEBUGFS_FWSTATS_DEL(rx, hdr_overflow);
270 DEBUGFS_FWSTATS_DEL(rx, hw_stuck);
271 DEBUGFS_FWSTATS_DEL(rx, dropped);
272 DEBUGFS_FWSTATS_DEL(rx, fcs_err);
273 DEBUGFS_FWSTATS_DEL(rx, xfr_hint_trig);
274 DEBUGFS_FWSTATS_DEL(rx, path_reset);
275 DEBUGFS_FWSTATS_DEL(rx, reset_counter);
276
277 DEBUGFS_FWSTATS_DEL(dma, rx_requested);
278 DEBUGFS_FWSTATS_DEL(dma, rx_errors);
279 DEBUGFS_FWSTATS_DEL(dma, tx_requested);
280 DEBUGFS_FWSTATS_DEL(dma, tx_errors);
281
282 DEBUGFS_FWSTATS_DEL(isr, cmd_cmplt);
283 DEBUGFS_FWSTATS_DEL(isr, fiqs);
284 DEBUGFS_FWSTATS_DEL(isr, rx_headers);
285 DEBUGFS_FWSTATS_DEL(isr, rx_mem_overflow);
286 DEBUGFS_FWSTATS_DEL(isr, rx_rdys);
287 DEBUGFS_FWSTATS_DEL(isr, irqs);
288 DEBUGFS_FWSTATS_DEL(isr, tx_procs);
289 DEBUGFS_FWSTATS_DEL(isr, decrypt_done);
290 DEBUGFS_FWSTATS_DEL(isr, dma0_done);
291 DEBUGFS_FWSTATS_DEL(isr, dma1_done);
292 DEBUGFS_FWSTATS_DEL(isr, tx_exch_complete);
293 DEBUGFS_FWSTATS_DEL(isr, commands);
294 DEBUGFS_FWSTATS_DEL(isr, rx_procs);
295 DEBUGFS_FWSTATS_DEL(isr, hw_pm_mode_changes);
296 DEBUGFS_FWSTATS_DEL(isr, host_acknowledges);
297 DEBUGFS_FWSTATS_DEL(isr, pci_pm);
298 DEBUGFS_FWSTATS_DEL(isr, wakeups);
299 DEBUGFS_FWSTATS_DEL(isr, low_rssi);
300
301 DEBUGFS_FWSTATS_DEL(wep, addr_key_count);
302 DEBUGFS_FWSTATS_DEL(wep, default_key_count);
303 /* skipping wep.reserved */
304 DEBUGFS_FWSTATS_DEL(wep, key_not_found);
305 DEBUGFS_FWSTATS_DEL(wep, decrypt_fail);
306 DEBUGFS_FWSTATS_DEL(wep, packets);
307 DEBUGFS_FWSTATS_DEL(wep, interrupt);
308
309 DEBUGFS_FWSTATS_DEL(pwr, ps_enter);
310 DEBUGFS_FWSTATS_DEL(pwr, elp_enter);
311 DEBUGFS_FWSTATS_DEL(pwr, missing_bcns);
312 DEBUGFS_FWSTATS_DEL(pwr, wake_on_host);
313 DEBUGFS_FWSTATS_DEL(pwr, wake_on_timer_exp);
314 DEBUGFS_FWSTATS_DEL(pwr, tx_with_ps);
315 DEBUGFS_FWSTATS_DEL(pwr, tx_without_ps);
316 DEBUGFS_FWSTATS_DEL(pwr, rcvd_beacons);
317 DEBUGFS_FWSTATS_DEL(pwr, power_save_off);
318 DEBUGFS_FWSTATS_DEL(pwr, enable_ps);
319 DEBUGFS_FWSTATS_DEL(pwr, disable_ps);
320 DEBUGFS_FWSTATS_DEL(pwr, fix_tsf_ps);
321 /* skipping cont_miss_bcns_spread for now */
322 DEBUGFS_FWSTATS_DEL(pwr, rcvd_awake_beacons);
323
324 DEBUGFS_FWSTATS_DEL(mic, rx_pkts);
325 DEBUGFS_FWSTATS_DEL(mic, calc_failure);
326
327 DEBUGFS_FWSTATS_DEL(aes, encrypt_fail);
328 DEBUGFS_FWSTATS_DEL(aes, decrypt_fail);
329 DEBUGFS_FWSTATS_DEL(aes, encrypt_packets);
330 DEBUGFS_FWSTATS_DEL(aes, decrypt_packets);
331 DEBUGFS_FWSTATS_DEL(aes, encrypt_interrupt);
332 DEBUGFS_FWSTATS_DEL(aes, decrypt_interrupt);
333
334 DEBUGFS_FWSTATS_DEL(event, heart_beat);
335 DEBUGFS_FWSTATS_DEL(event, calibration);
336 DEBUGFS_FWSTATS_DEL(event, rx_mismatch);
337 DEBUGFS_FWSTATS_DEL(event, rx_mem_empty);
338 DEBUGFS_FWSTATS_DEL(event, rx_pool);
339 DEBUGFS_FWSTATS_DEL(event, oom_late);
340 DEBUGFS_FWSTATS_DEL(event, phy_transmit_error);
341 DEBUGFS_FWSTATS_DEL(event, tx_stuck);
342
343 DEBUGFS_FWSTATS_DEL(ps, pspoll_timeouts);
344 DEBUGFS_FWSTATS_DEL(ps, upsd_timeouts);
345 DEBUGFS_FWSTATS_DEL(ps, upsd_max_sptime);
346 DEBUGFS_FWSTATS_DEL(ps, upsd_max_apturn);
347 DEBUGFS_FWSTATS_DEL(ps, pspoll_max_apturn);
348 DEBUGFS_FWSTATS_DEL(ps, pspoll_utilization);
349 DEBUGFS_FWSTATS_DEL(ps, upsd_utilization);
350
351 DEBUGFS_FWSTATS_DEL(rxpipe, rx_prep_beacon_drop);
352 DEBUGFS_FWSTATS_DEL(rxpipe, descr_host_int_trig_rx_data);
353 DEBUGFS_FWSTATS_DEL(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
354 DEBUGFS_FWSTATS_DEL(rxpipe, missed_beacon_host_int_trig_rx_data);
355 DEBUGFS_FWSTATS_DEL(rxpipe, tx_xfr_host_int_trig_rx_data);
356
357 DEBUGFS_DEL(tx_queue_len);
358 DEBUGFS_DEL(tx_queue_status);
359 DEBUGFS_DEL(retry_count);
360 DEBUGFS_DEL(excessive_retries);
361 }
362
wl1251_debugfs_add_files(struct wl1251 * wl)363 static int wl1251_debugfs_add_files(struct wl1251 *wl)
364 {
365 int ret = 0;
366
367 DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
368
369 DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
370 DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
371 DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
372 DEBUGFS_FWSTATS_ADD(rx, dropped);
373 DEBUGFS_FWSTATS_ADD(rx, fcs_err);
374 DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
375 DEBUGFS_FWSTATS_ADD(rx, path_reset);
376 DEBUGFS_FWSTATS_ADD(rx, reset_counter);
377
378 DEBUGFS_FWSTATS_ADD(dma, rx_requested);
379 DEBUGFS_FWSTATS_ADD(dma, rx_errors);
380 DEBUGFS_FWSTATS_ADD(dma, tx_requested);
381 DEBUGFS_FWSTATS_ADD(dma, tx_errors);
382
383 DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
384 DEBUGFS_FWSTATS_ADD(isr, fiqs);
385 DEBUGFS_FWSTATS_ADD(isr, rx_headers);
386 DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
387 DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
388 DEBUGFS_FWSTATS_ADD(isr, irqs);
389 DEBUGFS_FWSTATS_ADD(isr, tx_procs);
390 DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
391 DEBUGFS_FWSTATS_ADD(isr, dma0_done);
392 DEBUGFS_FWSTATS_ADD(isr, dma1_done);
393 DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
394 DEBUGFS_FWSTATS_ADD(isr, commands);
395 DEBUGFS_FWSTATS_ADD(isr, rx_procs);
396 DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
397 DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
398 DEBUGFS_FWSTATS_ADD(isr, pci_pm);
399 DEBUGFS_FWSTATS_ADD(isr, wakeups);
400 DEBUGFS_FWSTATS_ADD(isr, low_rssi);
401
402 DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
403 DEBUGFS_FWSTATS_ADD(wep, default_key_count);
404 /* skipping wep.reserved */
405 DEBUGFS_FWSTATS_ADD(wep, key_not_found);
406 DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
407 DEBUGFS_FWSTATS_ADD(wep, packets);
408 DEBUGFS_FWSTATS_ADD(wep, interrupt);
409
410 DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
411 DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
412 DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
413 DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
414 DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
415 DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
416 DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
417 DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
418 DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
419 DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
420 DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
421 DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
422 /* skipping cont_miss_bcns_spread for now */
423 DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);
424
425 DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
426 DEBUGFS_FWSTATS_ADD(mic, calc_failure);
427
428 DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
429 DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
430 DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
431 DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
432 DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
433 DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);
434
435 DEBUGFS_FWSTATS_ADD(event, heart_beat);
436 DEBUGFS_FWSTATS_ADD(event, calibration);
437 DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
438 DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
439 DEBUGFS_FWSTATS_ADD(event, rx_pool);
440 DEBUGFS_FWSTATS_ADD(event, oom_late);
441 DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
442 DEBUGFS_FWSTATS_ADD(event, tx_stuck);
443
444 DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
445 DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
446 DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
447 DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
448 DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
449 DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
450 DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);
451
452 DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
453 DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
454 DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
455 DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
456 DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
457
458 DEBUGFS_ADD(tx_queue_len, wl->debugfs.rootdir);
459 DEBUGFS_ADD(tx_queue_status, wl->debugfs.rootdir);
460 DEBUGFS_ADD(retry_count, wl->debugfs.rootdir);
461 DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir);
462
463 out:
464 if (ret < 0)
465 wl1251_debugfs_delete_files(wl);
466
467 return ret;
468 }
469
wl1251_debugfs_reset(struct wl1251 * wl)470 void wl1251_debugfs_reset(struct wl1251 *wl)
471 {
472 if (wl->stats.fw_stats != NULL)
473 memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
474 wl->stats.retry_count = 0;
475 wl->stats.excessive_retries = 0;
476 }
477
wl1251_debugfs_init(struct wl1251 * wl)478 int wl1251_debugfs_init(struct wl1251 *wl)
479 {
480 int ret;
481
482 wl->debugfs.rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);
483
484 if (IS_ERR(wl->debugfs.rootdir)) {
485 ret = PTR_ERR(wl->debugfs.rootdir);
486 wl->debugfs.rootdir = NULL;
487 goto err;
488 }
489
490 wl->debugfs.fw_statistics = debugfs_create_dir("fw-statistics",
491 wl->debugfs.rootdir);
492
493 if (IS_ERR(wl->debugfs.fw_statistics)) {
494 ret = PTR_ERR(wl->debugfs.fw_statistics);
495 wl->debugfs.fw_statistics = NULL;
496 goto err_root;
497 }
498
499 wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats),
500 GFP_KERNEL);
501
502 if (!wl->stats.fw_stats) {
503 ret = -ENOMEM;
504 goto err_fw;
505 }
506
507 wl->stats.fw_stats_update = jiffies;
508
509 ret = wl1251_debugfs_add_files(wl);
510
511 if (ret < 0)
512 goto err_file;
513
514 return 0;
515
516 err_file:
517 kfree(wl->stats.fw_stats);
518 wl->stats.fw_stats = NULL;
519
520 err_fw:
521 debugfs_remove(wl->debugfs.fw_statistics);
522 wl->debugfs.fw_statistics = NULL;
523
524 err_root:
525 debugfs_remove(wl->debugfs.rootdir);
526 wl->debugfs.rootdir = NULL;
527
528 err:
529 return ret;
530 }
531
wl1251_debugfs_exit(struct wl1251 * wl)532 void wl1251_debugfs_exit(struct wl1251 *wl)
533 {
534 wl1251_debugfs_delete_files(wl);
535
536 kfree(wl->stats.fw_stats);
537 wl->stats.fw_stats = NULL;
538
539 debugfs_remove(wl->debugfs.fw_statistics);
540 wl->debugfs.fw_statistics = NULL;
541
542 debugfs_remove(wl->debugfs.rootdir);
543 wl->debugfs.rootdir = NULL;
544
545 }
546