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On Tue, Nov 06, 2007 at 02:33:53AM -0800, akpm@linux-foundation.org wrote:
[mmotm.git] / drivers / net / wireless / iwlwifi / iwl-debugfs.c
blob2cd11ba963700d6e12a97a710354a20a99f225c3
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 #include "iwl-calib.h"
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, S_IWUSR | S_IRUSR, \
53 dbgfs->dir_##parent, priv, \
54 &iwl_dbgfs_##name##_ops); \
55 if (!(dbgfs->dbgfs_##parent##_files.file_##name)) \
56 goto err; \
57 } while (0)
58
59 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
60 dbgfs->dbgfs_##parent##_files.file_##name = \
61 debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \
62 dbgfs->dir_##parent, ptr); \
63 if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name) \
64 || !dbgfs->dbgfs_##parent##_files.file_##name) \
65 goto err; \
66 } while (0)
67
68 #define DEBUGFS_ADD_X32(name, parent, ptr) do { \
69 dbgfs->dbgfs_##parent##_files.file_##name = \
70 debugfs_create_x32(#name, S_IRUSR, dbgfs->dir_##parent, ptr); \
71 if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name) \
72 || !dbgfs->dbgfs_##parent##_files.file_##name) \
73 goto err; \
74 } while (0)
75
76 #define DEBUGFS_REMOVE(name) do { \
77 debugfs_remove(name); \
78 name = NULL; \
79 } while (0);
80
81 /* file operation */
82 #define DEBUGFS_READ_FUNC(name) \
83 static ssize_t iwl_dbgfs_##name##_read(struct file *file, \
84 char __user *user_buf, \
85 size_t count, loff_t *ppos);
86
87 #define DEBUGFS_WRITE_FUNC(name) \
88 static ssize_t iwl_dbgfs_##name##_write(struct file *file, \
89 const char __user *user_buf, \
90 size_t count, loff_t *ppos);
91
92
93 static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
94 {
95 file->private_data = inode->i_private;
96 return 0;
97 }
98
99 #define DEBUGFS_READ_FILE_OPS(name) \
100 DEBUGFS_READ_FUNC(name); \
101 static const struct file_operations iwl_dbgfs_##name##_ops = { \
102 .read = iwl_dbgfs_##name##_read, \
103 .open = iwl_dbgfs_open_file_generic, \
104 };
105
106 #define DEBUGFS_WRITE_FILE_OPS(name) \
107 DEBUGFS_WRITE_FUNC(name); \
108 static const struct file_operations iwl_dbgfs_##name##_ops = { \
109 .write = iwl_dbgfs_##name##_write, \
110 .open = iwl_dbgfs_open_file_generic, \
111 };
112
113
114 #define DEBUGFS_READ_WRITE_FILE_OPS(name) \
115 DEBUGFS_READ_FUNC(name); \
116 DEBUGFS_WRITE_FUNC(name); \
117 static const struct file_operations iwl_dbgfs_##name##_ops = { \
118 .write = iwl_dbgfs_##name##_write, \
119 .read = iwl_dbgfs_##name##_read, \
120 .open = iwl_dbgfs_open_file_generic, \
121 };
122
123
124 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
125 char __user *user_buf,
126 size_t count, loff_t *ppos) {
127
128 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
129 char *buf;
130 int pos = 0;
131
132 int cnt;
133 ssize_t ret;
134 const size_t bufsz = 100 + sizeof(char) * 24 * (MANAGEMENT_MAX + CONTROL_MAX);
135 buf = kzalloc(bufsz, GFP_KERNEL);
136 if (!buf)
137 return -ENOMEM;
138 pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
139 for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
140 pos += scnprintf(buf + pos, bufsz - pos,
141 "\t%s\t\t: %u\n",
142 get_mgmt_string(cnt),
143 priv->tx_stats.mgmt[cnt]);
144 }
145 pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
146 for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
147 pos += scnprintf(buf + pos, bufsz - pos,
148 "\t%s\t\t: %u\n",
149 get_ctrl_string(cnt),
150 priv->tx_stats.ctrl[cnt]);
151 }
152 pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
153 pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
154 priv->tx_stats.data_cnt);
155 pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
156 priv->tx_stats.data_bytes);
157 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
158 kfree(buf);
159 return ret;
160 }
161
162 static ssize_t iwl_dbgfs_tx_statistics_write(struct file *file,
163 const char __user *user_buf,
164 size_t count, loff_t *ppos)
165 {
166 struct iwl_priv *priv = file->private_data;
167 u32 clear_flag;
168 char buf[8];
169 int buf_size;
170
171 memset(buf, 0, sizeof(buf));
172 buf_size = min(count, sizeof(buf) - 1);
173 if (copy_from_user(buf, user_buf, buf_size))
174 return -EFAULT;
175 if (sscanf(buf, "%x", &clear_flag) != 1)
176 return -EFAULT;
177 if (clear_flag == 1)
178 iwl_clear_tx_stats(priv);
179
180 return count;
181 }
182
183 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
184 char __user *user_buf,
185 size_t count, loff_t *ppos) {
186
187 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
188 char *buf;
189 int pos = 0;
190 int cnt;
191 ssize_t ret;
192 const size_t bufsz = 100 +
193 sizeof(char) * 24 * (MANAGEMENT_MAX + CONTROL_MAX);
194 buf = kzalloc(bufsz, GFP_KERNEL);
195 if (!buf)
196 return -ENOMEM;
197
198 pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
199 for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
200 pos += scnprintf(buf + pos, bufsz - pos,
201 "\t%s\t\t: %u\n",
202 get_mgmt_string(cnt),
203 priv->rx_stats.mgmt[cnt]);
204 }
205 pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
206 for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
207 pos += scnprintf(buf + pos, bufsz - pos,
208 "\t%s\t\t: %u\n",
209 get_ctrl_string(cnt),
210 priv->rx_stats.ctrl[cnt]);
211 }
212 pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
213 pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
214 priv->rx_stats.data_cnt);
215 pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
216 priv->rx_stats.data_bytes);
217
218 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
219 kfree(buf);
220 return ret;
221 }
222
223 static ssize_t iwl_dbgfs_rx_statistics_write(struct file *file,
224 const char __user *user_buf,
225 size_t count, loff_t *ppos)
226 {
227 struct iwl_priv *priv = file->private_data;
228 u32 clear_flag;
229 char buf[8];
230 int buf_size;
231
232 memset(buf, 0, sizeof(buf));
233 buf_size = min(count, sizeof(buf) - 1);
234 if (copy_from_user(buf, user_buf, buf_size))
235 return -EFAULT;
236 if (sscanf(buf, "%x", &clear_flag) != 1)
237 return -EFAULT;
238 if (clear_flag == 1)
239 iwl_clear_rx_stats(priv);
240 return count;
241 }
242
243 #define BYTE1_MASK 0x000000ff;
244 #define BYTE2_MASK 0x0000ffff;
245 #define BYTE3_MASK 0x00ffffff;
246 static ssize_t iwl_dbgfs_sram_read(struct file *file,
247 char __user *user_buf,
248 size_t count, loff_t *ppos)
249 {
250 u32 val;
251 char buf[1024];
252 ssize_t ret;
253 int i;
254 int pos = 0;
255 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
256 const size_t bufsz = sizeof(buf);
257
258 for (i = priv->dbgfs->sram_len; i > 0; i -= 4) {
259 val = iwl_read_targ_mem(priv, priv->dbgfs->sram_offset + \
260 priv->dbgfs->sram_len - i);
261 if (i < 4) {
262 switch (i) {
263 case 1:
264 val &= BYTE1_MASK;
265 break;
266 case 2:
267 val &= BYTE2_MASK;
268 break;
269 case 3:
270 val &= BYTE3_MASK;
271 break;
272 }
273 }
274 pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
275 }
276 pos += scnprintf(buf + pos, bufsz - pos, "\n");
277
278 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
279 return ret;
280 }
281
282 static ssize_t iwl_dbgfs_sram_write(struct file *file,
283 const char __user *user_buf,
284 size_t count, loff_t *ppos)
285 {
286 struct iwl_priv *priv = file->private_data;
287 char buf[64];
288 int buf_size;
289 u32 offset, len;
290
291 memset(buf, 0, sizeof(buf));
292 buf_size = min(count, sizeof(buf) - 1);
293 if (copy_from_user(buf, user_buf, buf_size))
294 return -EFAULT;
295
296 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
297 priv->dbgfs->sram_offset = offset;
298 priv->dbgfs->sram_len = len;
299 } else {
300 priv->dbgfs->sram_offset = 0;
301 priv->dbgfs->sram_len = 0;
302 }
303
304 return count;
305 }
306
307 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
308 size_t count, loff_t *ppos)
309 {
310 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
311 struct iwl_station_entry *station;
312 int max_sta = priv->hw_params.max_stations;
313 char *buf;
314 int i, j, pos = 0;
315 ssize_t ret;
316 /* Add 30 for initial string */
317 const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
318
319 buf = kmalloc(bufsz, GFP_KERNEL);
320 if (!buf)
321 return -ENOMEM;
322
323 pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
324 priv->num_stations);
325
326 for (i = 0; i < max_sta; i++) {
327 station = &priv->stations[i];
328 if (station->used) {
329 pos += scnprintf(buf + pos, bufsz - pos,
330 "station %d:\ngeneral data:\n", i+1);
331 pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n",
332 station->sta.sta.sta_id);
333 pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n",
334 station->sta.mode);
335 pos += scnprintf(buf + pos, bufsz - pos,
336 "flags: 0x%x\n",
337 station->sta.station_flags_msk);
338 pos += scnprintf(buf + pos, bufsz - pos,
339 "ps_status: %u\n", station->ps_status);
340 pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n");
341 pos += scnprintf(buf + pos, bufsz - pos,
342 "seq_num\t\ttxq_id");
343 pos += scnprintf(buf + pos, bufsz - pos,
344 "\tframe_count\twait_for_ba\t");
345 pos += scnprintf(buf + pos, bufsz - pos,
346 "start_idx\tbitmap0\t");
347 pos += scnprintf(buf + pos, bufsz - pos,
348 "bitmap1\trate_n_flags");
349 pos += scnprintf(buf + pos, bufsz - pos, "\n");
350
351 for (j = 0; j < MAX_TID_COUNT; j++) {
352 pos += scnprintf(buf + pos, bufsz - pos,
353 "[%d]:\t\t%u", j,
354 station->tid[j].seq_number);
355 pos += scnprintf(buf + pos, bufsz - pos,
356 "\t%u\t\t%u\t\t%u\t\t",
357 station->tid[j].agg.txq_id,
358 station->tid[j].agg.frame_count,
359 station->tid[j].agg.wait_for_ba);
360 pos += scnprintf(buf + pos, bufsz - pos,
361 "%u\t%llu\t%u",
362 station->tid[j].agg.start_idx,
363 (unsigned long long)station->tid[j].agg.bitmap,
364 station->tid[j].agg.rate_n_flags);
365 pos += scnprintf(buf + pos, bufsz - pos, "\n");
366 }
367 pos += scnprintf(buf + pos, bufsz - pos, "\n");
368 }
369 }
370
371 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
372 kfree(buf);
373 return ret;
374 }
375
376 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
377 char __user *user_buf,
378 size_t count,
379 loff_t *ppos)
380 {
381 ssize_t ret;
382 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
383 int pos = 0, ofs = 0, buf_size = 0;
384 const u8 *ptr;
385 char *buf;
386 u16 eeprom_ver;
387 size_t eeprom_len = priv->cfg->eeprom_size;
388 buf_size = 4 * eeprom_len + 256;
389
390 if (eeprom_len % 16) {
391 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
392 return -ENODATA;
393 }
394
395 ptr = priv->eeprom;
396 if (!ptr) {
397 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
398 return -ENOMEM;
399 }
400
401 /* 4 characters for byte 0xYY */
402 buf = kzalloc(buf_size, GFP_KERNEL);
403 if (!buf) {
404 IWL_ERR(priv, "Can not allocate Buffer\n");
405 return -ENOMEM;
406 }
407 eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
408 pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
409 "version: 0x%x\n",
410 (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
411 ? "OTP" : "EEPROM", eeprom_ver);
412 for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
413 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
414 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
415 buf_size - pos, 0);
416 pos += strlen(buf + pos);
417 if (buf_size - pos > 0)
418 buf[pos++] = '\n';
419 }
420
421 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
422 kfree(buf);
423 return ret;
424 }
425
426 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
427 const char __user *user_buf,
428 size_t count, loff_t *ppos)
429 {
430 struct iwl_priv *priv = file->private_data;
431 u32 event_log_flag;
432 char buf[8];
433 int buf_size;
434
435 memset(buf, 0, sizeof(buf));
436 buf_size = min(count, sizeof(buf) - 1);
437 if (copy_from_user(buf, user_buf, buf_size))
438 return -EFAULT;
439 if (sscanf(buf, "%d", &event_log_flag) != 1)
440 return -EFAULT;
441 if (event_log_flag == 1)
442 priv->cfg->ops->lib->dump_nic_event_log(priv);
443
444 return count;
445 }
446
447
448
449 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
450 size_t count, loff_t *ppos)
451 {
452 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
453 struct ieee80211_channel *channels = NULL;
454 const struct ieee80211_supported_band *supp_band = NULL;
455 int pos = 0, i, bufsz = PAGE_SIZE;
456 char *buf;
457 ssize_t ret;
458
459 if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
460 return -EAGAIN;
461
462 buf = kzalloc(bufsz, GFP_KERNEL);
463 if (!buf) {
464 IWL_ERR(priv, "Can not allocate Buffer\n");
465 return -ENOMEM;
466 }
467
468 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
469 if (supp_band) {
470 channels = supp_band->channels;
471
472 pos += scnprintf(buf + pos, bufsz - pos,
473 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
474 supp_band->n_channels);
475
476 for (i = 0; i < supp_band->n_channels; i++)
477 pos += scnprintf(buf + pos, bufsz - pos,
478 "%d: %ddBm: BSS%s%s, %s.\n",
479 ieee80211_frequency_to_channel(
480 channels[i].center_freq),
481 channels[i].max_power,
482 channels[i].flags & IEEE80211_CHAN_RADAR ?
483 " (IEEE 802.11h required)" : "",
484 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
485 || (channels[i].flags &
486 IEEE80211_CHAN_RADAR)) ? "" :
487 ", IBSS",
488 channels[i].flags &
489 IEEE80211_CHAN_PASSIVE_SCAN ?
490 "passive only" : "active/passive");
491 }
492 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
493 if (supp_band) {
494 channels = supp_band->channels;
495
496 pos += scnprintf(buf + pos, bufsz - pos,
497 "Displaying %d channels in 5.2GHz band (802.11a)\n",
498 supp_band->n_channels);
499
500 for (i = 0; i < supp_band->n_channels; i++)
501 pos += scnprintf(buf + pos, bufsz - pos,
502 "%d: %ddBm: BSS%s%s, %s.\n",
503 ieee80211_frequency_to_channel(
504 channels[i].center_freq),
505 channels[i].max_power,
506 channels[i].flags & IEEE80211_CHAN_RADAR ?
507 " (IEEE 802.11h required)" : "",
508 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
509 || (channels[i].flags &
510 IEEE80211_CHAN_RADAR)) ? "" :
511 ", IBSS",
512 channels[i].flags &
513 IEEE80211_CHAN_PASSIVE_SCAN ?
514 "passive only" : "active/passive");
515 }
516 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
517 kfree(buf);
518 return ret;
519 }
520
521 static ssize_t iwl_dbgfs_status_read(struct file *file,
522 char __user *user_buf,
523 size_t count, loff_t *ppos) {
524
525 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
526 char buf[512];
527 int pos = 0;
528 const size_t bufsz = sizeof(buf);
529
530 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
531 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
532 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_SYNC_ACTIVE: %d\n",
533 test_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status));
534 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
535 test_bit(STATUS_INT_ENABLED, &priv->status));
536 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
537 test_bit(STATUS_RF_KILL_HW, &priv->status));
538 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
539 test_bit(STATUS_CT_KILL, &priv->status));
540 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
541 test_bit(STATUS_INIT, &priv->status));
542 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
543 test_bit(STATUS_ALIVE, &priv->status));
544 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
545 test_bit(STATUS_READY, &priv->status));
546 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
547 test_bit(STATUS_TEMPERATURE, &priv->status));
548 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
549 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
550 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
551 test_bit(STATUS_EXIT_PENDING, &priv->status));
552 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
553 test_bit(STATUS_STATISTICS, &priv->status));
554 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
555 test_bit(STATUS_SCANNING, &priv->status));
556 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
557 test_bit(STATUS_SCAN_ABORTING, &priv->status));
558 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
559 test_bit(STATUS_SCAN_HW, &priv->status));
560 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
561 test_bit(STATUS_POWER_PMI, &priv->status));
562 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
563 test_bit(STATUS_FW_ERROR, &priv->status));
564 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_MODE_PENDING:\t %d\n",
565 test_bit(STATUS_MODE_PENDING, &priv->status));
566 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
567 }
568
569 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
570 char __user *user_buf,
571 size_t count, loff_t *ppos) {
572
573 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
574 int pos = 0;
575 int cnt = 0;
576 char *buf;
577 int bufsz = 24 * 64; /* 24 items * 64 char per item */
578 ssize_t ret;
579
580 buf = kzalloc(bufsz, GFP_KERNEL);
581 if (!buf) {
582 IWL_ERR(priv, "Can not allocate Buffer\n");
583 return -ENOMEM;
584 }
585
586 pos += scnprintf(buf + pos, bufsz - pos,
587 "Interrupt Statistics Report:\n");
588
589 pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
590 priv->isr_stats.hw);
591 pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
592 priv->isr_stats.sw);
593 if (priv->isr_stats.sw > 0) {
594 pos += scnprintf(buf + pos, bufsz - pos,
595 "\tLast Restarting Code: 0x%X\n",
596 priv->isr_stats.sw_err);
597 }
598 #ifdef CONFIG_IWLWIFI_DEBUG
599 pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
600 priv->isr_stats.sch);
601 pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
602 priv->isr_stats.alive);
603 #endif
604 pos += scnprintf(buf + pos, bufsz - pos,
605 "HW RF KILL switch toggled:\t %u\n",
606 priv->isr_stats.rfkill);
607
608 pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
609 priv->isr_stats.ctkill);
610
611 pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
612 priv->isr_stats.wakeup);
613
614 pos += scnprintf(buf + pos, bufsz - pos,
615 "Rx command responses:\t\t %u\n",
616 priv->isr_stats.rx);
617 for (cnt = 0; cnt < REPLY_MAX; cnt++) {
618 if (priv->isr_stats.rx_handlers[cnt] > 0)
619 pos += scnprintf(buf + pos, bufsz - pos,
620 "\tRx handler[%36s]:\t\t %u\n",
621 get_cmd_string(cnt),
622 priv->isr_stats.rx_handlers[cnt]);
623 }
624
625 pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
626 priv->isr_stats.tx);
627
628 pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
629 priv->isr_stats.unhandled);
630
631 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
632 kfree(buf);
633 return ret;
634 }
635
636 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
637 const char __user *user_buf,
638 size_t count, loff_t *ppos)
639 {
640 struct iwl_priv *priv = file->private_data;
641 char buf[8];
642 int buf_size;
643 u32 reset_flag;
644
645 memset(buf, 0, sizeof(buf));
646 buf_size = min(count, sizeof(buf) - 1);
647 if (copy_from_user(buf, user_buf, buf_size))
648 return -EFAULT;
649 if (sscanf(buf, "%x", &reset_flag) != 1)
650 return -EFAULT;
651 if (reset_flag == 0)
652 iwl_clear_isr_stats(priv);
653
654 return count;
655 }
656
657 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
658 size_t count, loff_t *ppos)
659 {
660 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
661 int pos = 0, i;
662 char buf[256];
663 const size_t bufsz = sizeof(buf);
664 ssize_t ret;
665
666 for (i = 0; i < AC_NUM; i++) {
667 pos += scnprintf(buf + pos, bufsz - pos,
668 "\tcw_min\tcw_max\taifsn\ttxop\n");
669 pos += scnprintf(buf + pos, bufsz - pos,
670 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
671 priv->qos_data.def_qos_parm.ac[i].cw_min,
672 priv->qos_data.def_qos_parm.ac[i].cw_max,
673 priv->qos_data.def_qos_parm.ac[i].aifsn,
674 priv->qos_data.def_qos_parm.ac[i].edca_txop);
675 }
676 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
677 return ret;
678 }
679
680 static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
681 size_t count, loff_t *ppos)
682 {
683 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
684 int pos = 0;
685 char buf[256];
686 const size_t bufsz = sizeof(buf);
687 ssize_t ret;
688
689 pos += scnprintf(buf + pos, bufsz - pos,
690 "allow blinking: %s\n",
691 (priv->allow_blinking) ? "True" : "False");
692 if (priv->allow_blinking) {
693 pos += scnprintf(buf + pos, bufsz - pos,
694 "Led blinking rate: %u\n",
695 priv->last_blink_rate);
696 pos += scnprintf(buf + pos, bufsz - pos,
697 "Last blink time: %lu\n",
698 priv->last_blink_time);
699 }
700
701 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
702 return ret;
703 }
704
705 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
706 char __user *user_buf,
707 size_t count, loff_t *ppos)
708 {
709 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
710 struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
711 struct iwl_tt_restriction *restriction;
712 char buf[100];
713 int pos = 0;
714 const size_t bufsz = sizeof(buf);
715 ssize_t ret;
716
717 pos += scnprintf(buf + pos, bufsz - pos,
718 "Thermal Throttling Mode: %s\n",
719 tt->advanced_tt ? "Advance" : "Legacy");
720 pos += scnprintf(buf + pos, bufsz - pos,
721 "Thermal Throttling State: %d\n",
722 tt->state);
723 if (tt->advanced_tt) {
724 restriction = tt->restriction + tt->state;
725 pos += scnprintf(buf + pos, bufsz - pos,
726 "Tx mode: %d\n",
727 restriction->tx_stream);
728 pos += scnprintf(buf + pos, bufsz - pos,
729 "Rx mode: %d\n",
730 restriction->rx_stream);
731 pos += scnprintf(buf + pos, bufsz - pos,
732 "HT mode: %d\n",
733 restriction->is_ht);
734 }
735 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
736 return ret;
737 }
738
739 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
740 const char __user *user_buf,
741 size_t count, loff_t *ppos)
742 {
743 struct iwl_priv *priv = file->private_data;
744 char buf[8];
745 int buf_size;
746 int ht40;
747
748 memset(buf, 0, sizeof(buf));
749 buf_size = min(count, sizeof(buf) - 1);
750 if (copy_from_user(buf, user_buf, buf_size))
751 return -EFAULT;
752 if (sscanf(buf, "%d", &ht40) != 1)
753 return -EFAULT;
754 if (!iwl_is_associated(priv))
755 priv->disable_ht40 = ht40 ? true : false;
756 else {
757 IWL_ERR(priv, "Sta associated with AP - "
758 "Change to 40MHz channel support is not allowed\n");
759 return -EINVAL;
760 }
761
762 return count;
763 }
764
765 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
766 char __user *user_buf,
767 size_t count, loff_t *ppos)
768 {
769 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
770 char buf[100];
771 int pos = 0;
772 const size_t bufsz = sizeof(buf);
773 ssize_t ret;
774
775 pos += scnprintf(buf + pos, bufsz - pos,
776 "11n 40MHz Mode: %s\n",
777 priv->disable_ht40 ? "Disabled" : "Enabled");
778 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
779 return ret;
780 }
781
782 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
783 const char __user *user_buf,
784 size_t count, loff_t *ppos)
785 {
786 struct iwl_priv *priv = file->private_data;
787 char buf[8];
788 int buf_size;
789 int value;
790
791 memset(buf, 0, sizeof(buf));
792 buf_size = min(count, sizeof(buf) - 1);
793 if (copy_from_user(buf, user_buf, buf_size))
794 return -EFAULT;
795
796 if (sscanf(buf, "%d", &value) != 1)
797 return -EINVAL;
798
799 /*
800 * Our users expect 0 to be "CAM", but 0 isn't actually
801 * valid here. However, let's not confuse them and present
802 * IWL_POWER_INDEX_1 as "1", not "0".
803 */
804 if (value == 0)
805 return -EINVAL;
806 else if (value > 0)
807 value -= 1;
808
809 if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
810 return -EINVAL;
811
812 priv->power_data.debug_sleep_level_override = value;
813
814 iwl_power_update_mode(priv, false);
815
816 return count;
817 }
818
819 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
820 char __user *user_buf,
821 size_t count, loff_t *ppos)
822 {
823 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
824 char buf[10];
825 int pos, value;
826 const size_t bufsz = sizeof(buf);
827
828 /* see the write function */
829 value = priv->power_data.debug_sleep_level_override;
830 if (value >= 0)
831 value += 1;
832
833 pos = scnprintf(buf, bufsz, "%d\n", value);
834 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
835 }
836
837 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
838 char __user *user_buf,
839 size_t count, loff_t *ppos)
840 {
841 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
842 char buf[200];
843 int pos = 0, i;
844 const size_t bufsz = sizeof(buf);
845 struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
846
847 pos += scnprintf(buf + pos, bufsz - pos,
848 "flags: %#.2x\n", le16_to_cpu(cmd->flags));
849 pos += scnprintf(buf + pos, bufsz - pos,
850 "RX/TX timeout: %d/%d usec\n",
851 le32_to_cpu(cmd->rx_data_timeout),
852 le32_to_cpu(cmd->tx_data_timeout));
853 for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
854 pos += scnprintf(buf + pos, bufsz - pos,
855 "sleep_interval[%d]: %d\n", i,
856 le32_to_cpu(cmd->sleep_interval[i]));
857
858 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
859 }
860
861 DEBUGFS_READ_WRITE_FILE_OPS(sram);
862 DEBUGFS_WRITE_FILE_OPS(log_event);
863 DEBUGFS_READ_FILE_OPS(nvm);
864 DEBUGFS_READ_FILE_OPS(stations);
865 DEBUGFS_READ_FILE_OPS(channels);
866 DEBUGFS_READ_FILE_OPS(status);
867 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
868 DEBUGFS_READ_FILE_OPS(qos);
869 DEBUGFS_READ_FILE_OPS(led);
870 DEBUGFS_READ_FILE_OPS(thermal_throttling);
871 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
872 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
873 DEBUGFS_READ_FILE_OPS(current_sleep_command);
874
875 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
876 char __user *user_buf,
877 size_t count, loff_t *ppos)
878 {
879 struct iwl_priv *priv = file->private_data;
880 int pos = 0, ofs = 0;
881 int cnt = 0, entry;
882 struct iwl_tx_queue *txq;
883 struct iwl_queue *q;
884 struct iwl_rx_queue *rxq = &priv->rxq;
885 char *buf;
886 int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
887 (priv->cfg->num_of_queues * 32 * 8) + 400;
888 const u8 *ptr;
889 ssize_t ret;
890
891 if (!priv->txq) {
892 IWL_ERR(priv, "txq not ready\n");
893 return -EAGAIN;
894 }
895 buf = kzalloc(bufsz, GFP_KERNEL);
896 if (!buf) {
897 IWL_ERR(priv, "Can not allocate buffer\n");
898 return -ENOMEM;
899 }
900 pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
901 for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
902 txq = &priv->txq[cnt];
903 q = &txq->q;
904 pos += scnprintf(buf + pos, bufsz - pos,
905 "q[%d]: read_ptr: %u, write_ptr: %u\n",
906 cnt, q->read_ptr, q->write_ptr);
907 }
908 if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
909 ptr = priv->tx_traffic;
910 pos += scnprintf(buf + pos, bufsz - pos,
911 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
912 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
913 for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
914 entry++, ofs += 16) {
915 pos += scnprintf(buf + pos, bufsz - pos,
916 "0x%.4x ", ofs);
917 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
918 buf + pos, bufsz - pos, 0);
919 pos += strlen(buf + pos);
920 if (bufsz - pos > 0)
921 buf[pos++] = '\n';
922 }
923 }
924 }
925
926 pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
927 pos += scnprintf(buf + pos, bufsz - pos,
928 "read: %u, write: %u\n",
929 rxq->read, rxq->write);
930
931 if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
932 ptr = priv->rx_traffic;
933 pos += scnprintf(buf + pos, bufsz - pos,
934 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
935 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
936 for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
937 entry++, ofs += 16) {
938 pos += scnprintf(buf + pos, bufsz - pos,
939 "0x%.4x ", ofs);
940 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
941 buf + pos, bufsz - pos, 0);
942 pos += strlen(buf + pos);
943 if (bufsz - pos > 0)
944 buf[pos++] = '\n';
945 }
946 }
947 }
948
949 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
950 kfree(buf);
951 return ret;
952 }
953
954 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
955 const char __user *user_buf,
956 size_t count, loff_t *ppos)
957 {
958 struct iwl_priv *priv = file->private_data;
959 char buf[8];
960 int buf_size;
961 int traffic_log;
962
963 memset(buf, 0, sizeof(buf));
964 buf_size = min(count, sizeof(buf) - 1);
965 if (copy_from_user(buf, user_buf, buf_size))
966 return -EFAULT;
967 if (sscanf(buf, "%d", &traffic_log) != 1)
968 return -EFAULT;
969 if (traffic_log == 0)
970 iwl_reset_traffic_log(priv);
971
972 return count;
973 }
974
975 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
976 char __user *user_buf,
977 size_t count, loff_t *ppos) {
978
979 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
980 struct iwl_tx_queue *txq;
981 struct iwl_queue *q;
982 char *buf;
983 int pos = 0;
984 int cnt;
985 int ret;
986 const size_t bufsz = sizeof(char) * 60 * priv->cfg->num_of_queues;
987
988 if (!priv->txq) {
989 IWL_ERR(priv, "txq not ready\n");
990 return -EAGAIN;
991 }
992 buf = kzalloc(bufsz, GFP_KERNEL);
993 if (!buf)
994 return -ENOMEM;
995
996 for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
997 txq = &priv->txq[cnt];
998 q = &txq->q;
999 pos += scnprintf(buf + pos, bufsz - pos,
1000 "hwq %.2d: read=%u write=%u stop=%d"
1001 " swq_id=%#.2x (ac %d/hwq %d)\n",
1002 cnt, q->read_ptr, q->write_ptr,
1003 !!test_bit(cnt, priv->queue_stopped),
1004 txq->swq_id,
1005 txq->swq_id & 0x80 ? txq->swq_id & 3 :
1006 txq->swq_id,
1007 txq->swq_id & 0x80 ? (txq->swq_id >> 2) &
1008 0x1f : txq->swq_id);
1009 if (cnt >= 4)
1010 continue;
1011 /* for the ACs, display the stop count too */
1012 pos += scnprintf(buf + pos, bufsz - pos,
1013 " stop-count: %d\n",
1014 atomic_read(&priv->queue_stop_count[cnt]));
1015 }
1016 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1017 kfree(buf);
1018 return ret;
1019 }
1020
1021 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
1022 char __user *user_buf,
1023 size_t count, loff_t *ppos) {
1024
1025 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1026 struct iwl_rx_queue *rxq = &priv->rxq;
1027 char buf[256];
1028 int pos = 0;
1029 const size_t bufsz = sizeof(buf);
1030
1031 pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
1032 rxq->read);
1033 pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
1034 rxq->write);
1035 pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1036 rxq->free_count);
1037 pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1038 le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF);
1039 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1040 }
1041
1042 #define UCODE_STATISTICS_CLEAR_MSK (0x1 << 0)
1043 #define UCODE_STATISTICS_FREQUENCY_MSK (0x1 << 1)
1044 #define UCODE_STATISTICS_NARROW_BAND_MSK (0x1 << 2)
1045
1046 static int iwl_dbgfs_statistics_flag(struct iwl_priv *priv, char *buf,
1047 int bufsz)
1048 {
1049 int p = 0;
1050
1051 p += scnprintf(buf + p, bufsz - p,
1052 "Statistics Flag(0x%X):\n",
1053 le32_to_cpu(priv->statistics.flag));
1054 if (le32_to_cpu(priv->statistics.flag) & UCODE_STATISTICS_CLEAR_MSK)
1055 p += scnprintf(buf + p, bufsz - p,
1056 "\tStatistics have been cleared\n");
1057 p += scnprintf(buf + p, bufsz - p,
1058 "\tOperational Frequency: %s\n",
1059 (le32_to_cpu(priv->statistics.flag) &
1060 UCODE_STATISTICS_FREQUENCY_MSK)
1061 ? "2.4 GHz" : "5.2 GHz");
1062 p += scnprintf(buf + p, bufsz - p,
1063 "\tTGj Narrow Band: %s\n",
1064 (le32_to_cpu(priv->statistics.flag) &
1065 UCODE_STATISTICS_NARROW_BAND_MSK)
1066 ? "enabled" : "disabled");
1067 return p;
1068 }
1069
1070
1071 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1072 char __user *user_buf,
1073 size_t count, loff_t *ppos)
1074 {
1075 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1076 int pos = 0;
1077 char *buf;
1078 int bufsz = sizeof(struct statistics_rx_phy) * 20 +
1079 sizeof(struct statistics_rx_non_phy) * 20 +
1080 sizeof(struct statistics_rx_ht_phy) * 20 + 400;
1081 ssize_t ret;
1082 struct statistics_rx_phy *ofdm, *accum_ofdm;
1083 struct statistics_rx_phy *cck, *accum_cck;
1084 struct statistics_rx_non_phy *general, *accum_general;
1085 struct statistics_rx_ht_phy *ht, *accum_ht;
1086
1087 if (!iwl_is_alive(priv))
1088 return -EAGAIN;
1089
1090 /* make request to uCode to retrieve statistics information */
1091 mutex_lock(&priv->mutex);
1092 ret = iwl_send_statistics_request(priv, 0);
1093 mutex_unlock(&priv->mutex);
1094
1095 if (ret) {
1096 IWL_ERR(priv,
1097 "Error sending statistics request: %zd\n", ret);
1098 return -EAGAIN;
1099 }
1100 buf = kzalloc(bufsz, GFP_KERNEL);
1101 if (!buf) {
1102 IWL_ERR(priv, "Can not allocate Buffer\n");
1103 return -ENOMEM;
1104 }
1105
1106 /* the statistic information display here is based on
1107 * the last statistics notification from uCode
1108 * might not reflect the current uCode activity
1109 */
1110 ofdm = &priv->statistics.rx.ofdm;
1111 cck = &priv->statistics.rx.cck;
1112 general = &priv->statistics.rx.general;
1113 ht = &priv->statistics.rx.ofdm_ht;
1114 accum_ofdm = &priv->accum_statistics.rx.ofdm;
1115 accum_cck = &priv->accum_statistics.rx.cck;
1116 accum_general = &priv->accum_statistics.rx.general;
1117 accum_ht = &priv->accum_statistics.rx.ofdm_ht;
1118 pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1119 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - OFDM:\n");
1120 pos += scnprintf(buf + pos, bufsz - pos,
1121 "\t\t\tcurrent\t\t\taccumulative\n");
1122 pos += scnprintf(buf + pos, bufsz - pos, "ina_cnt:\t\t%u\t\t\t%u\n",
1123 le32_to_cpu(ofdm->ina_cnt), accum_ofdm->ina_cnt);
1124 pos += scnprintf(buf + pos, bufsz - pos, "fina_cnt:\t\t%u\t\t\t%u\n",
1125 le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt);
1126 pos += scnprintf(buf + pos, bufsz - pos, "plcp_err:\t\t%u\t\t\t%u\n",
1127 le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err);
1128 pos += scnprintf(buf + pos, bufsz - pos, "crc32_err:\t\t%u\t\t\t%u\n",
1129 le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err);
1130 pos += scnprintf(buf + pos, bufsz - pos,
1131 "overrun_err:\t\t%u\t\t\t%u\n",
1132 le32_to_cpu(ofdm->overrun_err),
1133 accum_ofdm->overrun_err);
1134 pos += scnprintf(buf + pos, bufsz - pos,
1135 "early_overrun_err:\t%u\t\t\t%u\n",
1136 le32_to_cpu(ofdm->early_overrun_err),
1137 accum_ofdm->early_overrun_err);
1138 pos += scnprintf(buf + pos, bufsz - pos, "crc32_good:\t\t%u\t\t\t%u\n",
1139 le32_to_cpu(ofdm->crc32_good),
1140 accum_ofdm->crc32_good);
1141 pos += scnprintf(buf + pos, bufsz - pos,
1142 "false_alarm_cnt:\t%u\t\t\t%u\n",
1143 le32_to_cpu(ofdm->false_alarm_cnt),
1144 accum_ofdm->false_alarm_cnt);
1145 pos += scnprintf(buf + pos, bufsz - pos,
1146 "fina_sync_err_cnt:\t%u\t\t\t%u\n",
1147 le32_to_cpu(ofdm->fina_sync_err_cnt),
1148 accum_ofdm->fina_sync_err_cnt);
1149 pos += scnprintf(buf + pos, bufsz - pos,
1150 "sfd_timeout:\t\t%u\t\t\t%u\n",
1151 le32_to_cpu(ofdm->sfd_timeout),
1152 accum_ofdm->sfd_timeout);
1153 pos += scnprintf(buf + pos, bufsz - pos,
1154 "fina_timeout:\t\t%u\t\t\t%u\n",
1155 le32_to_cpu(ofdm->fina_timeout),
1156 accum_ofdm->fina_timeout);
1157 pos += scnprintf(buf + pos, bufsz - pos,
1158 "unresponded_rts:\t%u\t\t\t%u\n",
1159 le32_to_cpu(ofdm->unresponded_rts),
1160 accum_ofdm->unresponded_rts);
1161 pos += scnprintf(buf + pos, bufsz - pos,
1162 "rxe_frame_lmt_ovrun:\t%u\t\t\t%u\n",
1163 le32_to_cpu(ofdm->rxe_frame_limit_overrun),
1164 accum_ofdm->rxe_frame_limit_overrun);
1165 pos += scnprintf(buf + pos, bufsz - pos,
1166 "sent_ack_cnt:\t\t%u\t\t\t%u\n",
1167 le32_to_cpu(ofdm->sent_ack_cnt),
1168 accum_ofdm->sent_ack_cnt);
1169 pos += scnprintf(buf + pos, bufsz - pos,
1170 "sent_cts_cnt:\t\t%u\t\t\t%u\n",
1171 le32_to_cpu(ofdm->sent_cts_cnt),
1172 accum_ofdm->sent_cts_cnt);
1173 pos += scnprintf(buf + pos, bufsz - pos,
1174 "sent_ba_rsp_cnt:\t%u\t\t\t%u\n",
1175 le32_to_cpu(ofdm->sent_ba_rsp_cnt),
1176 accum_ofdm->sent_ba_rsp_cnt);
1177 pos += scnprintf(buf + pos, bufsz - pos,
1178 "dsp_self_kill:\t\t%u\t\t\t%u\n",
1179 le32_to_cpu(ofdm->dsp_self_kill),
1180 accum_ofdm->dsp_self_kill);
1181 pos += scnprintf(buf + pos, bufsz - pos,
1182 "mh_format_err:\t\t%u\t\t\t%u\n",
1183 le32_to_cpu(ofdm->mh_format_err),
1184 accum_ofdm->mh_format_err);
1185 pos += scnprintf(buf + pos, bufsz - pos,
1186 "re_acq_main_rssi_sum:\t%u\t\t\t%u\n",
1187 le32_to_cpu(ofdm->re_acq_main_rssi_sum),
1188 accum_ofdm->re_acq_main_rssi_sum);
1189
1190 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - CCK:\n");
1191 pos += scnprintf(buf + pos, bufsz - pos,
1192 "\t\t\tcurrent\t\t\taccumulative\n");
1193 pos += scnprintf(buf + pos, bufsz - pos, "ina_cnt:\t\t%u\t\t\t%u\n",
1194 le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt);
1195 pos += scnprintf(buf + pos, bufsz - pos, "fina_cnt:\t\t%u\t\t\t%u\n",
1196 le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt);
1197 pos += scnprintf(buf + pos, bufsz - pos, "plcp_err:\t\t%u\t\t\t%u\n",
1198 le32_to_cpu(cck->plcp_err), accum_cck->plcp_err);
1199 pos += scnprintf(buf + pos, bufsz - pos, "crc32_err:\t\t%u\t\t\t%u\n",
1200 le32_to_cpu(cck->crc32_err), accum_cck->crc32_err);
1201 pos += scnprintf(buf + pos, bufsz - pos,
1202 "overrun_err:\t\t%u\t\t\t%u\n",
1203 le32_to_cpu(cck->overrun_err),
1204 accum_cck->overrun_err);
1205 pos += scnprintf(buf + pos, bufsz - pos,
1206 "early_overrun_err:\t%u\t\t\t%u\n",
1207 le32_to_cpu(cck->early_overrun_err),
1208 accum_cck->early_overrun_err);
1209 pos += scnprintf(buf + pos, bufsz - pos, "crc32_good:\t\t%u\t\t\t%u\n",
1210 le32_to_cpu(cck->crc32_good), accum_cck->crc32_good);
1211 pos += scnprintf(buf + pos, bufsz - pos,
1212 "false_alarm_cnt:\t%u\t\t\t%u\n",
1213 le32_to_cpu(cck->false_alarm_cnt),
1214 accum_cck->false_alarm_cnt);
1215 pos += scnprintf(buf + pos, bufsz - pos,
1216 "fina_sync_err_cnt:\t%u\t\t\t%u\n",
1217 le32_to_cpu(cck->fina_sync_err_cnt),
1218 accum_cck->fina_sync_err_cnt);
1219 pos += scnprintf(buf + pos, bufsz - pos,
1220 "sfd_timeout:\t\t%u\t\t\t%u\n",
1221 le32_to_cpu(cck->sfd_timeout),
1222 accum_cck->sfd_timeout);
1223 pos += scnprintf(buf + pos, bufsz - pos,
1224 "fina_timeout:\t\t%u\t\t\t%u\n",
1225 le32_to_cpu(cck->fina_timeout),
1226 accum_cck->fina_timeout);
1227 pos += scnprintf(buf + pos, bufsz - pos,
1228 "unresponded_rts:\t%u\t\t\t%u\n",
1229 le32_to_cpu(cck->unresponded_rts),
1230 accum_cck->unresponded_rts);
1231 pos += scnprintf(buf + pos, bufsz - pos,
1232 "rxe_frame_lmt_ovrun:\t%u\t\t\t%u\n",
1233 le32_to_cpu(cck->rxe_frame_limit_overrun),
1234 accum_cck->rxe_frame_limit_overrun);
1235 pos += scnprintf(buf + pos, bufsz - pos,
1236 "sent_ack_cnt:\t\t%u\t\t\t%u\n",
1237 le32_to_cpu(cck->sent_ack_cnt),
1238 accum_cck->sent_ack_cnt);
1239 pos += scnprintf(buf + pos, bufsz - pos,
1240 "sent_cts_cnt:\t\t%u\t\t\t%u\n",
1241 le32_to_cpu(cck->sent_cts_cnt),
1242 accum_cck->sent_cts_cnt);
1243 pos += scnprintf(buf + pos, bufsz - pos,
1244 "sent_ba_rsp_cnt:\t%u\t\t\t%u\n",
1245 le32_to_cpu(cck->sent_ba_rsp_cnt),
1246 accum_cck->sent_ba_rsp_cnt);
1247 pos += scnprintf(buf + pos, bufsz - pos,
1248 "dsp_self_kill:\t\t%u\t\t\t%u\n",
1249 le32_to_cpu(cck->dsp_self_kill),
1250 accum_cck->dsp_self_kill);
1251 pos += scnprintf(buf + pos, bufsz - pos,
1252 "mh_format_err:\t\t%u\t\t\t%u\n",
1253 le32_to_cpu(cck->mh_format_err),
1254 accum_cck->mh_format_err);
1255 pos += scnprintf(buf + pos, bufsz - pos,
1256 "re_acq_main_rssi_sum:\t%u\t\t\t%u\n",
1257 le32_to_cpu(cck->re_acq_main_rssi_sum),
1258 accum_cck->re_acq_main_rssi_sum);
1259
1260 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - GENERAL:\n");
1261 pos += scnprintf(buf + pos, bufsz - pos,
1262 "\t\t\tcurrent\t\t\taccumulative\n");
1263 pos += scnprintf(buf + pos, bufsz - pos, "bogus_cts:\t\t%u\t\t\t%u\n",
1264 le32_to_cpu(general->bogus_cts),
1265 accum_general->bogus_cts);
1266 pos += scnprintf(buf + pos, bufsz - pos, "bogus_ack:\t\t%u\t\t\t%u\n",
1267 le32_to_cpu(general->bogus_ack),
1268 accum_general->bogus_ack);
1269 pos += scnprintf(buf + pos, bufsz - pos,
1270 "non_bssid_frames:\t%u\t\t\t%u\n",
1271 le32_to_cpu(general->non_bssid_frames),
1272 accum_general->non_bssid_frames);
1273 pos += scnprintf(buf + pos, bufsz - pos,
1274 "filtered_frames:\t%u\t\t\t%u\n",
1275 le32_to_cpu(general->filtered_frames),
1276 accum_general->filtered_frames);
1277 pos += scnprintf(buf + pos, bufsz - pos,
1278 "non_channel_beacons:\t%u\t\t\t%u\n",
1279 le32_to_cpu(general->non_channel_beacons),
1280 accum_general->non_channel_beacons);
1281 pos += scnprintf(buf + pos, bufsz - pos,
1282 "channel_beacons:\t%u\t\t\t%u\n",
1283 le32_to_cpu(general->channel_beacons),
1284 accum_general->channel_beacons);
1285 pos += scnprintf(buf + pos, bufsz - pos,
1286 "num_missed_bcon:\t%u\t\t\t%u\n",
1287 le32_to_cpu(general->num_missed_bcon),
1288 accum_general->num_missed_bcon);
1289 pos += scnprintf(buf + pos, bufsz - pos,
1290 "adc_rx_saturation_time:\t%u\t\t\t%u\n",
1291 le32_to_cpu(general->adc_rx_saturation_time),
1292 accum_general->adc_rx_saturation_time);
1293 pos += scnprintf(buf + pos, bufsz - pos,
1294 "ina_detect_search_tm:\t%u\t\t\t%u\n",
1295 le32_to_cpu(general->ina_detection_search_time),
1296 accum_general->ina_detection_search_time);
1297 pos += scnprintf(buf + pos, bufsz - pos,
1298 "beacon_silence_rssi_a:\t%u\t\t\t%u\n",
1299 le32_to_cpu(general->beacon_silence_rssi_a),
1300 accum_general->beacon_silence_rssi_a);
1301 pos += scnprintf(buf + pos, bufsz - pos,
1302 "beacon_silence_rssi_b:\t%u\t\t\t%u\n",
1303 le32_to_cpu(general->beacon_silence_rssi_b),
1304 accum_general->beacon_silence_rssi_b);
1305 pos += scnprintf(buf + pos, bufsz - pos,
1306 "beacon_silence_rssi_c:\t%u\t\t\t%u\n",
1307 le32_to_cpu(general->beacon_silence_rssi_c),
1308 accum_general->beacon_silence_rssi_c);
1309 pos += scnprintf(buf + pos, bufsz - pos,
1310 "interference_data_flag:\t%u\t\t\t%u\n",
1311 le32_to_cpu(general->interference_data_flag),
1312 accum_general->interference_data_flag);
1313 pos += scnprintf(buf + pos, bufsz - pos,
1314 "channel_load:\t\t%u\t\t\t%u\n",
1315 le32_to_cpu(general->channel_load),
1316 accum_general->channel_load);
1317 pos += scnprintf(buf + pos, bufsz - pos,
1318 "dsp_false_alarms:\t%u\t\t\t%u\n",
1319 le32_to_cpu(general->dsp_false_alarms),
1320 accum_general->dsp_false_alarms);
1321 pos += scnprintf(buf + pos, bufsz - pos,
1322 "beacon_rssi_a:\t\t%u\t\t\t%u\n",
1323 le32_to_cpu(general->beacon_rssi_a),
1324 accum_general->beacon_rssi_a);
1325 pos += scnprintf(buf + pos, bufsz - pos,
1326 "beacon_rssi_b:\t\t%u\t\t\t%u\n",
1327 le32_to_cpu(general->beacon_rssi_b),
1328 accum_general->beacon_rssi_b);
1329 pos += scnprintf(buf + pos, bufsz - pos,
1330 "beacon_rssi_c:\t\t%u\t\t\t%u\n",
1331 le32_to_cpu(general->beacon_rssi_c),
1332 accum_general->beacon_rssi_c);
1333 pos += scnprintf(buf + pos, bufsz - pos,
1334 "beacon_energy_a:\t%u\t\t\t%u\n",
1335 le32_to_cpu(general->beacon_energy_a),
1336 accum_general->beacon_energy_a);
1337 pos += scnprintf(buf + pos, bufsz - pos,
1338 "beacon_energy_b:\t%u\t\t\t%u\n",
1339 le32_to_cpu(general->beacon_energy_b),
1340 accum_general->beacon_energy_b);
1341 pos += scnprintf(buf + pos, bufsz - pos,
1342 "beacon_energy_c:\t%u\t\t\t%u\n",
1343 le32_to_cpu(general->beacon_energy_c),
1344 accum_general->beacon_energy_c);
1345
1346 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - OFDM_HT:\n");
1347 pos += scnprintf(buf + pos, bufsz - pos,
1348 "\t\t\tcurrent\t\t\taccumulative\n");
1349 pos += scnprintf(buf + pos, bufsz - pos, "plcp_err:\t\t%u\t\t\t%u\n",
1350 le32_to_cpu(ht->plcp_err), accum_ht->plcp_err);
1351 pos += scnprintf(buf + pos, bufsz - pos,
1352 "overrun_err:\t\t%u\t\t\t%u\n",
1353 le32_to_cpu(ht->overrun_err), accum_ht->overrun_err);
1354 pos += scnprintf(buf + pos, bufsz - pos,
1355 "early_overrun_err:\t%u\t\t\t%u\n",
1356 le32_to_cpu(ht->early_overrun_err),
1357 accum_ht->early_overrun_err);
1358 pos += scnprintf(buf + pos, bufsz - pos, "crc32_good:\t\t%u\t\t\t%u\n",
1359 le32_to_cpu(ht->crc32_good), accum_ht->crc32_good);
1360 pos += scnprintf(buf + pos, bufsz - pos, "crc32_err:\t\t%u\t\t\t%u\n",
1361 le32_to_cpu(ht->crc32_err), accum_ht->crc32_err);
1362 pos += scnprintf(buf + pos, bufsz - pos,
1363 "mh_format_err:\t\t%u\t\t\t%u\n",
1364 le32_to_cpu(ht->mh_format_err),
1365 accum_ht->mh_format_err);
1366 pos += scnprintf(buf + pos, bufsz - pos,
1367 "agg_crc32_good:\t\t%u\t\t\t%u\n",
1368 le32_to_cpu(ht->agg_crc32_good),
1369 accum_ht->agg_crc32_good);
1370 pos += scnprintf(buf + pos, bufsz - pos,
1371 "agg_mpdu_cnt:\t\t%u\t\t\t%u\n",
1372 le32_to_cpu(ht->agg_mpdu_cnt),
1373 accum_ht->agg_mpdu_cnt);
1374 pos += scnprintf(buf + pos, bufsz - pos, "agg_cnt:\t\t%u\t\t\t%u\n",
1375 le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt);
1376
1377 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1378 kfree(buf);
1379 return ret;
1380 }
1381
1382 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1383 char __user *user_buf,
1384 size_t count, loff_t *ppos)
1385 {
1386 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1387 int pos = 0;
1388 char *buf;
1389 int bufsz = (sizeof(struct statistics_tx) * 24) + 250;
1390 ssize_t ret;
1391 struct statistics_tx *tx, *accum_tx;
1392
1393 if (!iwl_is_alive(priv))
1394 return -EAGAIN;
1395
1396 /* make request to uCode to retrieve statistics information */
1397 mutex_lock(&priv->mutex);
1398 ret = iwl_send_statistics_request(priv, 0);
1399 mutex_unlock(&priv->mutex);
1400
1401 if (ret) {
1402 IWL_ERR(priv,
1403 "Error sending statistics request: %zd\n", ret);
1404 return -EAGAIN;
1405 }
1406 buf = kzalloc(bufsz, GFP_KERNEL);
1407 if (!buf) {
1408 IWL_ERR(priv, "Can not allocate Buffer\n");
1409 return -ENOMEM;
1410 }
1411
1412 /* the statistic information display here is based on
1413 * the last statistics notification from uCode
1414 * might not reflect the current uCode activity
1415 */
1416 tx = &priv->statistics.tx;
1417 accum_tx = &priv->accum_statistics.tx;
1418 pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1419 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Tx:\n");
1420 pos += scnprintf(buf + pos, bufsz - pos,
1421 "\t\t\tcurrent\t\t\taccumulative\n");
1422 pos += scnprintf(buf + pos, bufsz - pos, "preamble:\t\t\t%u\t\t\t%u\n",
1423 le32_to_cpu(tx->preamble_cnt),
1424 accum_tx->preamble_cnt);
1425 pos += scnprintf(buf + pos, bufsz - pos,
1426 "rx_detected_cnt:\t\t%u\t\t\t%u\n",
1427 le32_to_cpu(tx->rx_detected_cnt),
1428 accum_tx->rx_detected_cnt);
1429 pos += scnprintf(buf + pos, bufsz - pos,
1430 "bt_prio_defer_cnt:\t\t%u\t\t\t%u\n",
1431 le32_to_cpu(tx->bt_prio_defer_cnt),
1432 accum_tx->bt_prio_defer_cnt);
1433 pos += scnprintf(buf + pos, bufsz - pos,
1434 "bt_prio_kill_cnt:\t\t%u\t\t\t%u\n",
1435 le32_to_cpu(tx->bt_prio_kill_cnt),
1436 accum_tx->bt_prio_kill_cnt);
1437 pos += scnprintf(buf + pos, bufsz - pos,
1438 "few_bytes_cnt:\t\t\t%u\t\t\t%u\n",
1439 le32_to_cpu(tx->few_bytes_cnt),
1440 accum_tx->few_bytes_cnt);
1441 pos += scnprintf(buf + pos, bufsz - pos,
1442 "cts_timeout:\t\t\t%u\t\t\t%u\n",
1443 le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout);
1444 pos += scnprintf(buf + pos, bufsz - pos,
1445 "ack_timeout:\t\t\t%u\t\t\t%u\n",
1446 le32_to_cpu(tx->ack_timeout),
1447 accum_tx->ack_timeout);
1448 pos += scnprintf(buf + pos, bufsz - pos,
1449 "expected_ack_cnt:\t\t%u\t\t\t%u\n",
1450 le32_to_cpu(tx->expected_ack_cnt),
1451 accum_tx->expected_ack_cnt);
1452 pos += scnprintf(buf + pos, bufsz - pos,
1453 "actual_ack_cnt:\t\t\t%u\t\t\t%u\n",
1454 le32_to_cpu(tx->actual_ack_cnt),
1455 accum_tx->actual_ack_cnt);
1456 pos += scnprintf(buf + pos, bufsz - pos,
1457 "dump_msdu_cnt:\t\t\t%u\t\t\t%u\n",
1458 le32_to_cpu(tx->dump_msdu_cnt),
1459 accum_tx->dump_msdu_cnt);
1460 pos += scnprintf(buf + pos, bufsz - pos,
1461 "abort_nxt_frame_mismatch:"
1462 "\t%u\t\t\t%u\n",
1463 le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1464 accum_tx->burst_abort_next_frame_mismatch_cnt);
1465 pos += scnprintf(buf + pos, bufsz - pos,
1466 "abort_missing_nxt_frame:"
1467 "\t%u\t\t\t%u\n",
1468 le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1469 accum_tx->burst_abort_missing_next_frame_cnt);
1470 pos += scnprintf(buf + pos, bufsz - pos,
1471 "cts_timeout_collision:\t\t%u\t\t\t%u\n",
1472 le32_to_cpu(tx->cts_timeout_collision),
1473 accum_tx->cts_timeout_collision);
1474 pos += scnprintf(buf + pos, bufsz - pos,
1475 "ack_ba_timeout_collision:\t%u\t\t\t%u\n",
1476 le32_to_cpu(tx->ack_or_ba_timeout_collision),
1477 accum_tx->ack_or_ba_timeout_collision);
1478 pos += scnprintf(buf + pos, bufsz - pos,
1479 "agg ba_timeout:\t\t\t%u\t\t\t%u\n",
1480 le32_to_cpu(tx->agg.ba_timeout),
1481 accum_tx->agg.ba_timeout);
1482 pos += scnprintf(buf + pos, bufsz - pos,
1483 "agg ba_resched_frames:\t\t%u\t\t\t%u\n",
1484 le32_to_cpu(tx->agg.ba_reschedule_frames),
1485 accum_tx->agg.ba_reschedule_frames);
1486 pos += scnprintf(buf + pos, bufsz - pos,
1487 "agg scd_query_agg_frame:\t%u\t\t\t%u\n",
1488 le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1489 accum_tx->agg.scd_query_agg_frame_cnt);
1490 pos += scnprintf(buf + pos, bufsz - pos,
1491 "agg scd_query_no_agg:\t\t%u\t\t\t%u\n",
1492 le32_to_cpu(tx->agg.scd_query_no_agg),
1493 accum_tx->agg.scd_query_no_agg);
1494 pos += scnprintf(buf + pos, bufsz - pos,
1495 "agg scd_query_agg:\t\t%u\t\t\t%u\n",
1496 le32_to_cpu(tx->agg.scd_query_agg),
1497 accum_tx->agg.scd_query_agg);
1498 pos += scnprintf(buf + pos, bufsz - pos,
1499 "agg scd_query_mismatch:\t\t%u\t\t\t%u\n",
1500 le32_to_cpu(tx->agg.scd_query_mismatch),
1501 accum_tx->agg.scd_query_mismatch);
1502 pos += scnprintf(buf + pos, bufsz - pos,
1503 "agg frame_not_ready:\t\t%u\t\t\t%u\n",
1504 le32_to_cpu(tx->agg.frame_not_ready),
1505 accum_tx->agg.frame_not_ready);
1506 pos += scnprintf(buf + pos, bufsz - pos,
1507 "agg underrun:\t\t\t%u\t\t\t%u\n",
1508 le32_to_cpu(tx->agg.underrun),
1509 accum_tx->agg.underrun);
1510 pos += scnprintf(buf + pos, bufsz - pos,
1511 "agg bt_prio_kill:\t\t%u\t\t\t%u\n",
1512 le32_to_cpu(tx->agg.bt_prio_kill),
1513 accum_tx->agg.bt_prio_kill);
1514 pos += scnprintf(buf + pos, bufsz - pos,
1515 "agg rx_ba_rsp_cnt:\t\t%u\t\t\t%u\n",
1516 le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1517 accum_tx->agg.rx_ba_rsp_cnt);
1518
1519 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1520 kfree(buf);
1521 return ret;
1522 }
1523
1524 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1525 char __user *user_buf,
1526 size_t count, loff_t *ppos)
1527 {
1528 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1529 int pos = 0;
1530 char *buf;
1531 int bufsz = sizeof(struct statistics_general) * 4 + 250;
1532 ssize_t ret;
1533 struct statistics_general *general, *accum_general;
1534 struct statistics_dbg *dbg, *accum_dbg;
1535 struct statistics_div *div, *accum_div;
1536
1537 if (!iwl_is_alive(priv))
1538 return -EAGAIN;
1539
1540 /* make request to uCode to retrieve statistics information */
1541 mutex_lock(&priv->mutex);
1542 ret = iwl_send_statistics_request(priv, 0);
1543 mutex_unlock(&priv->mutex);
1544
1545 if (ret) {
1546 IWL_ERR(priv,
1547 "Error sending statistics request: %zd\n", ret);
1548 return -EAGAIN;
1549 }
1550 buf = kzalloc(bufsz, GFP_KERNEL);
1551 if (!buf) {
1552 IWL_ERR(priv, "Can not allocate Buffer\n");
1553 return -ENOMEM;
1554 }
1555
1556 /* the statistic information display here is based on
1557 * the last statistics notification from uCode
1558 * might not reflect the current uCode activity
1559 */
1560 general = &priv->statistics.general;
1561 dbg = &priv->statistics.general.dbg;
1562 div = &priv->statistics.general.div;
1563 accum_general = &priv->accum_statistics.general;
1564 accum_dbg = &priv->accum_statistics.general.dbg;
1565 accum_div = &priv->accum_statistics.general.div;
1566 pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1567 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_General:\n");
1568 pos += scnprintf(buf + pos, bufsz - pos,
1569 "\t\t\tcurrent\t\t\taccumulative\n");
1570 pos += scnprintf(buf + pos, bufsz - pos, "temperature:\t\t\t%u\n",
1571 le32_to_cpu(general->temperature));
1572 pos += scnprintf(buf + pos, bufsz - pos, "temperature_m:\t\t\t%u\n",
1573 le32_to_cpu(general->temperature_m));
1574 pos += scnprintf(buf + pos, bufsz - pos,
1575 "burst_check:\t\t\t%u\t\t\t%u\n",
1576 le32_to_cpu(dbg->burst_check),
1577 accum_dbg->burst_check);
1578 pos += scnprintf(buf + pos, bufsz - pos,
1579 "burst_count:\t\t\t%u\t\t\t%u\n",
1580 le32_to_cpu(dbg->burst_count),
1581 accum_dbg->burst_count);
1582 pos += scnprintf(buf + pos, bufsz - pos,
1583 "sleep_time:\t\t\t%u\t\t\t%u\n",
1584 le32_to_cpu(general->sleep_time),
1585 accum_general->sleep_time);
1586 pos += scnprintf(buf + pos, bufsz - pos,
1587 "slots_out:\t\t\t%u\t\t\t%u\n",
1588 le32_to_cpu(general->slots_out),
1589 accum_general->slots_out);
1590 pos += scnprintf(buf + pos, bufsz - pos,
1591 "slots_idle:\t\t\t%u\t\t\t%u\n",
1592 le32_to_cpu(general->slots_idle),
1593 accum_general->slots_idle);
1594 pos += scnprintf(buf + pos, bufsz - pos, "ttl_timestamp:\t\t\t%u\n",
1595 le32_to_cpu(general->ttl_timestamp));
1596 pos += scnprintf(buf + pos, bufsz - pos, "tx_on_a:\t\t\t%u\t\t\t%u\n",
1597 le32_to_cpu(div->tx_on_a), accum_div->tx_on_a);
1598 pos += scnprintf(buf + pos, bufsz - pos, "tx_on_b:\t\t\t%u\t\t\t%u\n",
1599 le32_to_cpu(div->tx_on_b), accum_div->tx_on_b);
1600 pos += scnprintf(buf + pos, bufsz - pos,
1601 "exec_time:\t\t\t%u\t\t\t%u\n",
1602 le32_to_cpu(div->exec_time), accum_div->exec_time);
1603 pos += scnprintf(buf + pos, bufsz - pos,
1604 "probe_time:\t\t\t%u\t\t\t%u\n",
1605 le32_to_cpu(div->probe_time), accum_div->probe_time);
1606 pos += scnprintf(buf + pos, bufsz - pos,
1607 "rx_enable_counter:\t\t%u\t\t\t%u\n",
1608 le32_to_cpu(general->rx_enable_counter),
1609 accum_general->rx_enable_counter);
1610 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1611 kfree(buf);
1612 return ret;
1613 }
1614
1615 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1616 char __user *user_buf,
1617 size_t count, loff_t *ppos) {
1618
1619 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1620 int pos = 0;
1621 int cnt = 0;
1622 char *buf;
1623 int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1624 ssize_t ret;
1625 struct iwl_sensitivity_data *data;
1626
1627 data = &priv->sensitivity_data;
1628 buf = kzalloc(bufsz, GFP_KERNEL);
1629 if (!buf) {
1630 IWL_ERR(priv, "Can not allocate Buffer\n");
1631 return -ENOMEM;
1632 }
1633
1634 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1635 data->auto_corr_ofdm);
1636 pos += scnprintf(buf + pos, bufsz - pos,
1637 "auto_corr_ofdm_mrc:\t\t %u\n",
1638 data->auto_corr_ofdm_mrc);
1639 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1640 data->auto_corr_ofdm_x1);
1641 pos += scnprintf(buf + pos, bufsz - pos,
1642 "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1643 data->auto_corr_ofdm_mrc_x1);
1644 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1645 data->auto_corr_cck);
1646 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1647 data->auto_corr_cck_mrc);
1648 pos += scnprintf(buf + pos, bufsz - pos,
1649 "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1650 data->last_bad_plcp_cnt_ofdm);
1651 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1652 data->last_fa_cnt_ofdm);
1653 pos += scnprintf(buf + pos, bufsz - pos,
1654 "last_bad_plcp_cnt_cck:\t\t %u\n",
1655 data->last_bad_plcp_cnt_cck);
1656 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1657 data->last_fa_cnt_cck);
1658 pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1659 data->nrg_curr_state);
1660 pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1661 data->nrg_prev_state);
1662 pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1663 for (cnt = 0; cnt < 10; cnt++) {
1664 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1665 data->nrg_value[cnt]);
1666 }
1667 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1668 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1669 for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1670 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1671 data->nrg_silence_rssi[cnt]);
1672 }
1673 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1674 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1675 data->nrg_silence_ref);
1676 pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1677 data->nrg_energy_idx);
1678 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1679 data->nrg_silence_idx);
1680 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1681 data->nrg_th_cck);
1682 pos += scnprintf(buf + pos, bufsz - pos,
1683 "nrg_auto_corr_silence_diff:\t %u\n",
1684 data->nrg_auto_corr_silence_diff);
1685 pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1686 data->num_in_cck_no_fa);
1687 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1688 data->nrg_th_ofdm);
1689
1690 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1691 kfree(buf);
1692 return ret;
1693 }
1694
1695
1696 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1697 char __user *user_buf,
1698 size_t count, loff_t *ppos) {
1699
1700 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1701 int pos = 0;
1702 int cnt = 0;
1703 char *buf;
1704 int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1705 ssize_t ret;
1706 struct iwl_chain_noise_data *data;
1707
1708 data = &priv->chain_noise_data;
1709 buf = kzalloc(bufsz, GFP_KERNEL);
1710 if (!buf) {
1711 IWL_ERR(priv, "Can not allocate Buffer\n");
1712 return -ENOMEM;
1713 }
1714
1715 pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1716 data->active_chains);
1717 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1718 data->chain_noise_a);
1719 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1720 data->chain_noise_b);
1721 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1722 data->chain_noise_c);
1723 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1724 data->chain_signal_a);
1725 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1726 data->chain_signal_b);
1727 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1728 data->chain_signal_c);
1729 pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1730 data->beacon_count);
1731
1732 pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1733 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1734 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1735 data->disconn_array[cnt]);
1736 }
1737 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1738 pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1739 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1740 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1741 data->delta_gain_code[cnt]);
1742 }
1743 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1744 pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1745 data->radio_write);
1746 pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1747 data->state);
1748
1749 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1750 kfree(buf);
1751 return ret;
1752 }
1753
1754 static ssize_t iwl_dbgfs_tx_power_read(struct file *file,
1755 char __user *user_buf,
1756 size_t count, loff_t *ppos) {
1757
1758 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1759 char buf[128];
1760 int pos = 0;
1761 ssize_t ret;
1762 const size_t bufsz = sizeof(buf);
1763 struct statistics_tx *tx;
1764
1765 if (!iwl_is_alive(priv))
1766 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
1767 else {
1768 /* make request to uCode to retrieve statistics information */
1769 mutex_lock(&priv->mutex);
1770 ret = iwl_send_statistics_request(priv, 0);
1771 mutex_unlock(&priv->mutex);
1772
1773 if (ret) {
1774 IWL_ERR(priv, "Error sending statistics request: %zd\n",
1775 ret);
1776 return -EAGAIN;
1777 }
1778 tx = &priv->statistics.tx;
1779 if (tx->tx_power.ant_a ||
1780 tx->tx_power.ant_b ||
1781 tx->tx_power.ant_c) {
1782 pos += scnprintf(buf + pos, bufsz - pos,
1783 "tx power: (1/2 dB step)\n");
1784 if ((priv->cfg->valid_tx_ant & ANT_A) &&
1785 tx->tx_power.ant_a)
1786 pos += scnprintf(buf + pos, bufsz - pos,
1787 "\tantenna A: 0x%X\n",
1788 tx->tx_power.ant_a);
1789 if ((priv->cfg->valid_tx_ant & ANT_B) &&
1790 tx->tx_power.ant_b)
1791 pos += scnprintf(buf + pos, bufsz - pos,
1792 "\tantenna B: 0x%X\n",
1793 tx->tx_power.ant_b);
1794 if ((priv->cfg->valid_tx_ant & ANT_C) &&
1795 tx->tx_power.ant_c)
1796 pos += scnprintf(buf + pos, bufsz - pos,
1797 "\tantenna C: 0x%X\n",
1798 tx->tx_power.ant_c);
1799 } else
1800 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
1801 }
1802 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1803 }
1804
1805 DEBUGFS_READ_WRITE_FILE_OPS(rx_statistics);
1806 DEBUGFS_READ_WRITE_FILE_OPS(tx_statistics);
1807 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
1808 DEBUGFS_READ_FILE_OPS(rx_queue);
1809 DEBUGFS_READ_FILE_OPS(tx_queue);
1810 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
1811 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
1812 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
1813 DEBUGFS_READ_FILE_OPS(sensitivity);
1814 DEBUGFS_READ_FILE_OPS(chain_noise);
1815 DEBUGFS_READ_FILE_OPS(tx_power);
1816
1817 /*
1818 * Create the debugfs files and directories
1819 *
1820 */
1821 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
1822 {
1823 struct iwl_debugfs *dbgfs;
1824 struct dentry *phyd = priv->hw->wiphy->debugfsdir;
1825 int ret = 0;
1826
1827 dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL);
1828 if (!dbgfs) {
1829 ret = -ENOMEM;
1830 goto err;
1831 }
1832
1833 priv->dbgfs = dbgfs;
1834 dbgfs->name = name;
1835 dbgfs->dir_drv = debugfs_create_dir(name, phyd);
1836 if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)) {
1837 ret = -ENOENT;
1838 goto err;
1839 }
1840
1841 DEBUGFS_ADD_DIR(data, dbgfs->dir_drv);
1842 DEBUGFS_ADD_DIR(rf, dbgfs->dir_drv);
1843 DEBUGFS_ADD_DIR(debug, dbgfs->dir_drv);
1844 DEBUGFS_ADD_FILE(nvm, data);
1845 DEBUGFS_ADD_FILE(sram, data);
1846 DEBUGFS_ADD_FILE(log_event, data);
1847 DEBUGFS_ADD_FILE(stations, data);
1848 DEBUGFS_ADD_FILE(channels, data);
1849 DEBUGFS_ADD_FILE(status, data);
1850 DEBUGFS_ADD_FILE(interrupt, data);
1851 DEBUGFS_ADD_FILE(qos, data);
1852 DEBUGFS_ADD_FILE(led, data);
1853 DEBUGFS_ADD_FILE(sleep_level_override, data);
1854 DEBUGFS_ADD_FILE(current_sleep_command, data);
1855 DEBUGFS_ADD_FILE(thermal_throttling, data);
1856 DEBUGFS_ADD_FILE(disable_ht40, data);
1857 DEBUGFS_ADD_FILE(rx_statistics, debug);
1858 DEBUGFS_ADD_FILE(tx_statistics, debug);
1859 DEBUGFS_ADD_FILE(traffic_log, debug);
1860 DEBUGFS_ADD_FILE(rx_queue, debug);
1861 DEBUGFS_ADD_FILE(tx_queue, debug);
1862 DEBUGFS_ADD_FILE(tx_power, debug);
1863 if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
1864 DEBUGFS_ADD_FILE(ucode_rx_stats, debug);
1865 DEBUGFS_ADD_FILE(ucode_tx_stats, debug);
1866 DEBUGFS_ADD_FILE(ucode_general_stats, debug);
1867 DEBUGFS_ADD_FILE(sensitivity, debug);
1868 DEBUGFS_ADD_FILE(chain_noise, debug);
1869 }
1870 DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
1871 DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
1872 &priv->disable_chain_noise_cal);
1873 if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
1874 ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
1875 DEBUGFS_ADD_BOOL(disable_tx_power, rf,
1876 &priv->disable_tx_power_cal);
1877 return 0;
1878
1879 err:
1880 IWL_ERR(priv, "Can't open the debugfs directory\n");
1881 iwl_dbgfs_unregister(priv);
1882 return ret;
1883 }
1884 EXPORT_SYMBOL(iwl_dbgfs_register);
1885
1886 /**
1887 * Remove the debugfs files and directories
1888 *
1889 */
1890 void iwl_dbgfs_unregister(struct iwl_priv *priv)
1891 {
1892 if (!priv->dbgfs)
1893 return;
1894
1895 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sleep_level_override);
1896 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_current_sleep_command);
1897 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm);
1898 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
1899 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event);
1900 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations);
1901 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_channels);
1902 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_status);
1903 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_interrupt);
1904 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_qos);
1905 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_led);
1906 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling);
1907 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_disable_ht40);
1908 DEBUGFS_REMOVE(priv->dbgfs->dir_data);
1909 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_statistics);
1910 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_statistics);
1911 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_traffic_log);
1912 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_queue);
1913 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_queue);
1914 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_power);
1915 if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
1916 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
1917 file_ucode_rx_stats);
1918 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
1919 file_ucode_tx_stats);
1920 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
1921 file_ucode_general_stats);
1922 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
1923 file_sensitivity);
1924 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
1925 file_chain_noise);
1926 }
1927 DEBUGFS_REMOVE(priv->dbgfs->dir_debug);
1928 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
1929 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
1930 if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
1931 ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
1932 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_tx_power);
1933 DEBUGFS_REMOVE(priv->dbgfs->dir_rf);
1934 DEBUGFS_REMOVE(priv->dbgfs->dir_drv);
1935 kfree(priv->dbgfs);
1936 priv->dbgfs = NULL;
1937 }
1938 EXPORT_SYMBOL(iwl_dbgfs_unregister);
1939
1940
1941
mm of the moment repository