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Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelv...
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-debugfs.c
1 /******************************************************************************
2 *
3 * GPL LICENSE SUMMARY
4 *
5 * Copyright(c) 2008 - 2009 Intel Corporation. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
19 * USA
20 *
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.GPL.
23 *
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *****************************************************************************/
28
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/debugfs.h>
32
33 #include <linux/ieee80211.h>
34 #include <net/mac80211.h>
35
36
37 #include "iwl-dev.h"
38 #include "iwl-debug.h"
39 #include "iwl-core.h"
40 #include "iwl-io.h"
41
42
43 /* create and remove of files */
44 #define DEBUGFS_ADD_DIR(name, parent) do { \
45 dbgfs->dir_##name = debugfs_create_dir(#name, parent); \
46 if (!(dbgfs->dir_##name)) \
47 goto err; \
48 } while (0)
49
50 #define DEBUGFS_ADD_FILE(name, parent) do { \
51 dbgfs->dbgfs_##parent##_files.file_##name = \
52 debugfs_create_file(#name, 0644, dbgfs->dir_##parent, priv, \
53 &iwl_dbgfs_##name##_ops); \
54 if (!(dbgfs->dbgfs_##parent##_files.file_##name)) \
55 goto err; \
56 } while (0)
57
58 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
59 dbgfs->dbgfs_##parent##_files.file_##name = \
60 debugfs_create_bool(#name, 0644, dbgfs->dir_##parent, ptr); \
61 if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name) \
62 || !dbgfs->dbgfs_##parent##_files.file_##name) \
63 goto err; \
64 } while (0)
65
66 #define DEBUGFS_ADD_X32(name, parent, ptr) do { \
67 dbgfs->dbgfs_##parent##_files.file_##name = \
68 debugfs_create_x32(#name, 0444, dbgfs->dir_##parent, ptr); \
69 if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name) \
70 || !dbgfs->dbgfs_##parent##_files.file_##name) \
71 goto err; \
72 } while (0)
73
74 #define DEBUGFS_REMOVE(name) do { \
75 debugfs_remove(name); \
76 name = NULL; \
77 } while (0);
78
79 /* file operation */
80 #define DEBUGFS_READ_FUNC(name) \
81 static ssize_t iwl_dbgfs_##name##_read(struct file *file, \
82 char __user *user_buf, \
83 size_t count, loff_t *ppos);
84
85 #define DEBUGFS_WRITE_FUNC(name) \
86 static ssize_t iwl_dbgfs_##name##_write(struct file *file, \
87 const char __user *user_buf, \
88 size_t count, loff_t *ppos);
89
90
91 static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
92 {
93 file->private_data = inode->i_private;
94 return 0;
95 }
96
97 #define DEBUGFS_READ_FILE_OPS(name) \
98 DEBUGFS_READ_FUNC(name); \
99 static const struct file_operations iwl_dbgfs_##name##_ops = { \
100 .read = iwl_dbgfs_##name##_read, \
101 .open = iwl_dbgfs_open_file_generic, \
102 };
103
104 #define DEBUGFS_WRITE_FILE_OPS(name) \
105 DEBUGFS_WRITE_FUNC(name); \
106 static const struct file_operations iwl_dbgfs_##name##_ops = { \
107 .write = iwl_dbgfs_##name##_write, \
108 .open = iwl_dbgfs_open_file_generic, \
109 };
110
111
112 #define DEBUGFS_READ_WRITE_FILE_OPS(name) \
113 DEBUGFS_READ_FUNC(name); \
114 DEBUGFS_WRITE_FUNC(name); \
115 static const struct file_operations iwl_dbgfs_##name##_ops = { \
116 .write = iwl_dbgfs_##name##_write, \
117 .read = iwl_dbgfs_##name##_read, \
118 .open = iwl_dbgfs_open_file_generic, \
119 };
120
121
122 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
123 char __user *user_buf,
124 size_t count, loff_t *ppos) {
125
126 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
127 char buf[256];
128 int pos = 0;
129 const size_t bufsz = sizeof(buf);
130
131 pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n",
132 priv->tx_stats[0].cnt);
133 pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n",
134 priv->tx_stats[1].cnt);
135 pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n",
136 priv->tx_stats[2].cnt);
137
138 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
139 }
140
141 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
142 char __user *user_buf,
143 size_t count, loff_t *ppos) {
144
145 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
146 char buf[256];
147 int pos = 0;
148 const size_t bufsz = sizeof(buf);
149
150 pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n",
151 priv->rx_stats[0].cnt);
152 pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n",
153 priv->rx_stats[1].cnt);
154 pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n",
155 priv->rx_stats[2].cnt);
156
157 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
158 }
159
160 #define BYTE1_MASK 0x000000ff;
161 #define BYTE2_MASK 0x0000ffff;
162 #define BYTE3_MASK 0x00ffffff;
163 static ssize_t iwl_dbgfs_sram_read(struct file *file,
164 char __user *user_buf,
165 size_t count, loff_t *ppos)
166 {
167 u32 val;
168 char buf[1024];
169 ssize_t ret;
170 int i;
171 int pos = 0;
172 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
173 const size_t bufsz = sizeof(buf);
174
175 for (i = priv->dbgfs->sram_len; i > 0; i -= 4) {
176 val = iwl_read_targ_mem(priv, priv->dbgfs->sram_offset + \
177 priv->dbgfs->sram_len - i);
178 if (i < 4) {
179 switch (i) {
180 case 1:
181 val &= BYTE1_MASK;
182 break;
183 case 2:
184 val &= BYTE2_MASK;
185 break;
186 case 3:
187 val &= BYTE3_MASK;
188 break;
189 }
190 }
191 pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
192 }
193 pos += scnprintf(buf + pos, bufsz - pos, "\n");
194
195 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
196 return ret;
197 }
198
199 static ssize_t iwl_dbgfs_sram_write(struct file *file,
200 const char __user *user_buf,
201 size_t count, loff_t *ppos)
202 {
203 struct iwl_priv *priv = file->private_data;
204 char buf[64];
205 int buf_size;
206 u32 offset, len;
207
208 memset(buf, 0, sizeof(buf));
209 buf_size = min(count, sizeof(buf) - 1);
210 if (copy_from_user(buf, user_buf, buf_size))
211 return -EFAULT;
212
213 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
214 priv->dbgfs->sram_offset = offset;
215 priv->dbgfs->sram_len = len;
216 } else {
217 priv->dbgfs->sram_offset = 0;
218 priv->dbgfs->sram_len = 0;
219 }
220
221 return count;
222 }
223
224 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
225 size_t count, loff_t *ppos)
226 {
227 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
228 struct iwl_station_entry *station;
229 int max_sta = priv->hw_params.max_stations;
230 char *buf;
231 int i, j, pos = 0;
232 ssize_t ret;
233 /* Add 30 for initial string */
234 const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
235
236 buf = kmalloc(bufsz, GFP_KERNEL);
237 if (!buf)
238 return -ENOMEM;
239
240 pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
241 priv->num_stations);
242
243 for (i = 0; i < max_sta; i++) {
244 station = &priv->stations[i];
245 if (station->used) {
246 pos += scnprintf(buf + pos, bufsz - pos,
247 "station %d:\ngeneral data:\n", i+1);
248 pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n",
249 station->sta.sta.sta_id);
250 pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n",
251 station->sta.mode);
252 pos += scnprintf(buf + pos, bufsz - pos,
253 "flags: 0x%x\n",
254 station->sta.station_flags_msk);
255 pos += scnprintf(buf + pos, bufsz - pos,
256 "ps_status: %u\n", station->ps_status);
257 pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n");
258 pos += scnprintf(buf + pos, bufsz - pos,
259 "seq_num\t\ttxq_id");
260 pos += scnprintf(buf + pos, bufsz - pos,
261 "\tframe_count\twait_for_ba\t");
262 pos += scnprintf(buf + pos, bufsz - pos,
263 "start_idx\tbitmap0\t");
264 pos += scnprintf(buf + pos, bufsz - pos,
265 "bitmap1\trate_n_flags");
266 pos += scnprintf(buf + pos, bufsz - pos, "\n");
267
268 for (j = 0; j < MAX_TID_COUNT; j++) {
269 pos += scnprintf(buf + pos, bufsz - pos,
270 "[%d]:\t\t%u", j,
271 station->tid[j].seq_number);
272 pos += scnprintf(buf + pos, bufsz - pos,
273 "\t%u\t\t%u\t\t%u\t\t",
274 station->tid[j].agg.txq_id,
275 station->tid[j].agg.frame_count,
276 station->tid[j].agg.wait_for_ba);
277 pos += scnprintf(buf + pos, bufsz - pos,
278 "%u\t%llu\t%u",
279 station->tid[j].agg.start_idx,
280 (unsigned long long)station->tid[j].agg.bitmap,
281 station->tid[j].agg.rate_n_flags);
282 pos += scnprintf(buf + pos, bufsz - pos, "\n");
283 }
284 pos += scnprintf(buf + pos, bufsz - pos, "\n");
285 }
286 }
287
288 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
289 kfree(buf);
290 return ret;
291 }
292
293 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
294 char __user *user_buf,
295 size_t count,
296 loff_t *ppos)
297 {
298 ssize_t ret;
299 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
300 int pos = 0, ofs = 0, buf_size = 0;
301 const u8 *ptr;
302 char *buf;
303 size_t eeprom_len = priv->cfg->eeprom_size;
304 buf_size = 4 * eeprom_len + 256;
305
306 if (eeprom_len % 16) {
307 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
308 return -ENODATA;
309 }
310
311 /* 4 characters for byte 0xYY */
312 buf = kzalloc(buf_size, GFP_KERNEL);
313 if (!buf) {
314 IWL_ERR(priv, "Can not allocate Buffer\n");
315 return -ENOMEM;
316 }
317
318 ptr = priv->eeprom;
319 if (!ptr) {
320 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
321 return -ENOMEM;
322 }
323 pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s\n",
324 (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
325 ? "OTP" : "EEPROM");
326 for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
327 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
328 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
329 buf_size - pos, 0);
330 pos += strlen(buf);
331 if (buf_size - pos > 0)
332 buf[pos++] = '\n';
333 }
334
335 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
336 kfree(buf);
337 return ret;
338 }
339
340 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
341 const char __user *user_buf,
342 size_t count, loff_t *ppos)
343 {
344 struct iwl_priv *priv = file->private_data;
345 u32 event_log_flag;
346 char buf[8];
347 int buf_size;
348
349 memset(buf, 0, sizeof(buf));
350 buf_size = min(count, sizeof(buf) - 1);
351 if (copy_from_user(buf, user_buf, buf_size))
352 return -EFAULT;
353 if (sscanf(buf, "%d", &event_log_flag) != 1)
354 return -EFAULT;
355 if (event_log_flag == 1)
356 iwl_dump_nic_event_log(priv);
357
358 return count;
359 }
360
361
362
363 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
364 size_t count, loff_t *ppos)
365 {
366 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
367 struct ieee80211_channel *channels = NULL;
368 const struct ieee80211_supported_band *supp_band = NULL;
369 int pos = 0, i, bufsz = PAGE_SIZE;
370 char *buf;
371 ssize_t ret;
372
373 if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
374 return -EAGAIN;
375
376 buf = kzalloc(bufsz, GFP_KERNEL);
377 if (!buf) {
378 IWL_ERR(priv, "Can not allocate Buffer\n");
379 return -ENOMEM;
380 }
381
382 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
383 if (supp_band) {
384 channels = supp_band->channels;
385
386 pos += scnprintf(buf + pos, bufsz - pos,
387 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
388 supp_band->n_channels);
389
390 for (i = 0; i < supp_band->n_channels; i++)
391 pos += scnprintf(buf + pos, bufsz - pos,
392 "%d: %ddBm: BSS%s%s, %s.\n",
393 ieee80211_frequency_to_channel(
394 channels[i].center_freq),
395 channels[i].max_power,
396 channels[i].flags & IEEE80211_CHAN_RADAR ?
397 " (IEEE 802.11h required)" : "",
398 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
399 || (channels[i].flags &
400 IEEE80211_CHAN_RADAR)) ? "" :
401 ", IBSS",
402 channels[i].flags &
403 IEEE80211_CHAN_PASSIVE_SCAN ?
404 "passive only" : "active/passive");
405 }
406 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
407 if (supp_band) {
408 channels = supp_band->channels;
409
410 pos += scnprintf(buf + pos, bufsz - pos,
411 "Displaying %d channels in 5.2GHz band (802.11a)\n",
412 supp_band->n_channels);
413
414 for (i = 0; i < supp_band->n_channels; i++)
415 pos += scnprintf(buf + pos, bufsz - pos,
416 "%d: %ddBm: BSS%s%s, %s.\n",
417 ieee80211_frequency_to_channel(
418 channels[i].center_freq),
419 channels[i].max_power,
420 channels[i].flags & IEEE80211_CHAN_RADAR ?
421 " (IEEE 802.11h required)" : "",
422 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
423 || (channels[i].flags &
424 IEEE80211_CHAN_RADAR)) ? "" :
425 ", IBSS",
426 channels[i].flags &
427 IEEE80211_CHAN_PASSIVE_SCAN ?
428 "passive only" : "active/passive");
429 }
430 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
431 kfree(buf);
432 return ret;
433 }
434
435 static ssize_t iwl_dbgfs_status_read(struct file *file,
436 char __user *user_buf,
437 size_t count, loff_t *ppos) {
438
439 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
440 char buf[512];
441 int pos = 0;
442 const size_t bufsz = sizeof(buf);
443
444 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
445 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
446 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_SYNC_ACTIVE: %d\n",
447 test_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status));
448 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
449 test_bit(STATUS_INT_ENABLED, &priv->status));
450 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
451 test_bit(STATUS_RF_KILL_HW, &priv->status));
452 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
453 test_bit(STATUS_INIT, &priv->status));
454 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
455 test_bit(STATUS_ALIVE, &priv->status));
456 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
457 test_bit(STATUS_READY, &priv->status));
458 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
459 test_bit(STATUS_TEMPERATURE, &priv->status));
460 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
461 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
462 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
463 test_bit(STATUS_EXIT_PENDING, &priv->status));
464 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
465 test_bit(STATUS_STATISTICS, &priv->status));
466 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
467 test_bit(STATUS_SCANNING, &priv->status));
468 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
469 test_bit(STATUS_SCAN_ABORTING, &priv->status));
470 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
471 test_bit(STATUS_SCAN_HW, &priv->status));
472 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
473 test_bit(STATUS_POWER_PMI, &priv->status));
474 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
475 test_bit(STATUS_FW_ERROR, &priv->status));
476 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_MODE_PENDING:\t %d\n",
477 test_bit(STATUS_MODE_PENDING, &priv->status));
478 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
479 }
480
481 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
482 char __user *user_buf,
483 size_t count, loff_t *ppos) {
484
485 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
486 int pos = 0;
487 int cnt = 0;
488 char *buf;
489 int bufsz = 24 * 64; /* 24 items * 64 char per item */
490 ssize_t ret;
491
492 buf = kzalloc(bufsz, GFP_KERNEL);
493 if (!buf) {
494 IWL_ERR(priv, "Can not allocate Buffer\n");
495 return -ENOMEM;
496 }
497
498 pos += scnprintf(buf + pos, bufsz - pos,
499 "Interrupt Statistics Report:\n");
500
501 pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
502 priv->isr_stats.hw);
503 pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
504 priv->isr_stats.sw);
505 if (priv->isr_stats.sw > 0) {
506 pos += scnprintf(buf + pos, bufsz - pos,
507 "\tLast Restarting Code: 0x%X\n",
508 priv->isr_stats.sw_err);
509 }
510 #ifdef CONFIG_IWLWIFI_DEBUG
511 pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
512 priv->isr_stats.sch);
513 pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
514 priv->isr_stats.alive);
515 #endif
516 pos += scnprintf(buf + pos, bufsz - pos,
517 "HW RF KILL switch toggled:\t %u\n",
518 priv->isr_stats.rfkill);
519
520 pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
521 priv->isr_stats.ctkill);
522
523 pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
524 priv->isr_stats.wakeup);
525
526 pos += scnprintf(buf + pos, bufsz - pos,
527 "Rx command responses:\t\t %u\n",
528 priv->isr_stats.rx);
529 for (cnt = 0; cnt < REPLY_MAX; cnt++) {
530 if (priv->isr_stats.rx_handlers[cnt] > 0)
531 pos += scnprintf(buf + pos, bufsz - pos,
532 "\tRx handler[%36s]:\t\t %u\n",
533 get_cmd_string(cnt),
534 priv->isr_stats.rx_handlers[cnt]);
535 }
536
537 pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
538 priv->isr_stats.tx);
539
540 pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
541 priv->isr_stats.unhandled);
542
543 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
544 kfree(buf);
545 return ret;
546 }
547
548 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
549 const char __user *user_buf,
550 size_t count, loff_t *ppos)
551 {
552 struct iwl_priv *priv = file->private_data;
553 char buf[8];
554 int buf_size;
555 u32 reset_flag;
556
557 memset(buf, 0, sizeof(buf));
558 buf_size = min(count, sizeof(buf) - 1);
559 if (copy_from_user(buf, user_buf, buf_size))
560 return -EFAULT;
561 if (sscanf(buf, "%x", &reset_flag) != 1)
562 return -EFAULT;
563 if (reset_flag == 0)
564 iwl_clear_isr_stats(priv);
565
566 return count;
567 }
568
569
570 DEBUGFS_READ_WRITE_FILE_OPS(sram);
571 DEBUGFS_WRITE_FILE_OPS(log_event);
572 DEBUGFS_READ_FILE_OPS(nvm);
573 DEBUGFS_READ_FILE_OPS(stations);
574 DEBUGFS_READ_FILE_OPS(rx_statistics);
575 DEBUGFS_READ_FILE_OPS(tx_statistics);
576 DEBUGFS_READ_FILE_OPS(channels);
577 DEBUGFS_READ_FILE_OPS(status);
578 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
579
580 /*
581 * Create the debugfs files and directories
582 *
583 */
584 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
585 {
586 struct iwl_debugfs *dbgfs;
587 struct dentry *phyd = priv->hw->wiphy->debugfsdir;
588 int ret = 0;
589
590 dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL);
591 if (!dbgfs) {
592 ret = -ENOMEM;
593 goto err;
594 }
595
596 priv->dbgfs = dbgfs;
597 dbgfs->name = name;
598 dbgfs->dir_drv = debugfs_create_dir(name, phyd);
599 if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)) {
600 ret = -ENOENT;
601 goto err;
602 }
603
604 DEBUGFS_ADD_DIR(data, dbgfs->dir_drv);
605 DEBUGFS_ADD_DIR(rf, dbgfs->dir_drv);
606 DEBUGFS_ADD_FILE(nvm, data);
607 DEBUGFS_ADD_FILE(sram, data);
608 DEBUGFS_ADD_FILE(log_event, data);
609 DEBUGFS_ADD_FILE(stations, data);
610 DEBUGFS_ADD_FILE(rx_statistics, data);
611 DEBUGFS_ADD_FILE(tx_statistics, data);
612 DEBUGFS_ADD_FILE(channels, data);
613 DEBUGFS_ADD_FILE(status, data);
614 DEBUGFS_ADD_FILE(interrupt, data);
615 DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
616 DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
617 &priv->disable_chain_noise_cal);
618 DEBUGFS_ADD_BOOL(disable_tx_power, rf, &priv->disable_tx_power_cal);
619 return 0;
620
621 err:
622 IWL_ERR(priv, "Can't open the debugfs directory\n");
623 iwl_dbgfs_unregister(priv);
624 return ret;
625 }
626 EXPORT_SYMBOL(iwl_dbgfs_register);
627
628 /**
629 * Remove the debugfs files and directories
630 *
631 */
632 void iwl_dbgfs_unregister(struct iwl_priv *priv)
633 {
634 if (!priv->dbgfs)
635 return;
636
637 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm);
638 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_rx_statistics);
639 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_tx_statistics);
640 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
641 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event);
642 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations);
643 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_channels);
644 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_status);
645 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_interrupt);
646 DEBUGFS_REMOVE(priv->dbgfs->dir_data);
647 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
648 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
649 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_tx_power);
650 DEBUGFS_REMOVE(priv->dbgfs->dir_rf);
651 DEBUGFS_REMOVE(priv->dbgfs->dir_drv);
652 kfree(priv->dbgfs);
653 priv->dbgfs = NULL;
654 }
655 EXPORT_SYMBOL(iwl_dbgfs_unregister);
656
657
658
Linux kernel - Deliverables
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