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RT-AC56 3.0.0.4.374.37 core
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / net / wireless / iwlwifi / iwl-debugfs.c
blobc7ba7b7ecc41772617a67fc1344d07b4c710f54c
1 /******************************************************************************
2 *
3 * GPL LICENSE SUMMARY
4 *
5 * Copyright(c) 2008 - 2010 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/slab.h>
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/debugfs.h>
33
34 #include <linux/ieee80211.h>
35 #include <net/mac80211.h>
36
37
38 #include "iwl-dev.h"
39 #include "iwl-debug.h"
40 #include "iwl-core.h"
41 #include "iwl-io.h"
42 #include "iwl-calib.h"
43
44 /* create and remove of files */
45 #define DEBUGFS_ADD_FILE(name, parent, mode) do { \
46 if (!debugfs_create_file(#name, mode, parent, priv, \
47 &iwl_dbgfs_##name##_ops)) \
48 goto err; \
49 } while (0)
50
51 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
52 struct dentry *__tmp; \
53 __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \
54 parent, ptr); \
55 if (IS_ERR(__tmp) || !__tmp) \
56 goto err; \
57 } while (0)
58
59 #define DEBUGFS_ADD_X32(name, parent, ptr) do { \
60 struct dentry *__tmp; \
61 __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR, \
62 parent, ptr); \
63 if (IS_ERR(__tmp) || !__tmp) \
64 goto err; \
65 } while (0)
66
67 /* file operation */
68 #define DEBUGFS_READ_FUNC(name) \
69 static ssize_t iwl_dbgfs_##name##_read(struct file *file, \
70 char __user *user_buf, \
71 size_t count, loff_t *ppos);
72
73 #define DEBUGFS_WRITE_FUNC(name) \
74 static ssize_t iwl_dbgfs_##name##_write(struct file *file, \
75 const char __user *user_buf, \
76 size_t count, loff_t *ppos);
77
78
79 static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
80 {
81 file->private_data = inode->i_private;
82 return 0;
83 }
84
85 #define DEBUGFS_READ_FILE_OPS(name) \
86 DEBUGFS_READ_FUNC(name); \
87 static const struct file_operations iwl_dbgfs_##name##_ops = { \
88 .read = iwl_dbgfs_##name##_read, \
89 .open = iwl_dbgfs_open_file_generic, \
90 };
91
92 #define DEBUGFS_WRITE_FILE_OPS(name) \
93 DEBUGFS_WRITE_FUNC(name); \
94 static const struct file_operations iwl_dbgfs_##name##_ops = { \
95 .write = iwl_dbgfs_##name##_write, \
96 .open = iwl_dbgfs_open_file_generic, \
97 };
98
99
100 #define DEBUGFS_READ_WRITE_FILE_OPS(name) \
101 DEBUGFS_READ_FUNC(name); \
102 DEBUGFS_WRITE_FUNC(name); \
103 static const struct file_operations iwl_dbgfs_##name##_ops = { \
104 .write = iwl_dbgfs_##name##_write, \
105 .read = iwl_dbgfs_##name##_read, \
106 .open = iwl_dbgfs_open_file_generic, \
107 };
108
109 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
110 char __user *user_buf,
111 size_t count, loff_t *ppos) {
112
113 struct iwl_priv *priv = file->private_data;
114 char *buf;
115 int pos = 0;
116
117 int cnt;
118 ssize_t ret;
119 const size_t bufsz = 100 +
120 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
121 buf = kzalloc(bufsz, GFP_KERNEL);
122 if (!buf)
123 return -ENOMEM;
124 pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
125 for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
126 pos += scnprintf(buf + pos, bufsz - pos,
127 "\t%25s\t\t: %u\n",
128 get_mgmt_string(cnt),
129 priv->tx_stats.mgmt[cnt]);
130 }
131 pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
132 for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
133 pos += scnprintf(buf + pos, bufsz - pos,
134 "\t%25s\t\t: %u\n",
135 get_ctrl_string(cnt),
136 priv->tx_stats.ctrl[cnt]);
137 }
138 pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
139 pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
140 priv->tx_stats.data_cnt);
141 pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
142 priv->tx_stats.data_bytes);
143 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
144 kfree(buf);
145 return ret;
146 }
147
148 static ssize_t iwl_dbgfs_clear_traffic_statistics_write(struct file *file,
149 const char __user *user_buf,
150 size_t count, loff_t *ppos)
151 {
152 struct iwl_priv *priv = file->private_data;
153 u32 clear_flag;
154 char buf[8];
155 int buf_size;
156
157 memset(buf, 0, sizeof(buf));
158 buf_size = min(count, sizeof(buf) - 1);
159 if (copy_from_user(buf, user_buf, buf_size))
160 return -EFAULT;
161 if (sscanf(buf, "%x", &clear_flag) != 1)
162 return -EFAULT;
163 iwl_clear_traffic_stats(priv);
164
165 return count;
166 }
167
168 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
169 char __user *user_buf,
170 size_t count, loff_t *ppos) {
171
172 struct iwl_priv *priv = file->private_data;
173 char *buf;
174 int pos = 0;
175 int cnt;
176 ssize_t ret;
177 const size_t bufsz = 100 +
178 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
179 buf = kzalloc(bufsz, GFP_KERNEL);
180 if (!buf)
181 return -ENOMEM;
182
183 pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
184 for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
185 pos += scnprintf(buf + pos, bufsz - pos,
186 "\t%25s\t\t: %u\n",
187 get_mgmt_string(cnt),
188 priv->rx_stats.mgmt[cnt]);
189 }
190 pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
191 for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
192 pos += scnprintf(buf + pos, bufsz - pos,
193 "\t%25s\t\t: %u\n",
194 get_ctrl_string(cnt),
195 priv->rx_stats.ctrl[cnt]);
196 }
197 pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
198 pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
199 priv->rx_stats.data_cnt);
200 pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
201 priv->rx_stats.data_bytes);
202
203 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
204 kfree(buf);
205 return ret;
206 }
207
208 #define BYTE1_MASK 0x000000ff;
209 #define BYTE2_MASK 0x0000ffff;
210 #define BYTE3_MASK 0x00ffffff;
211 static ssize_t iwl_dbgfs_sram_read(struct file *file,
212 char __user *user_buf,
213 size_t count, loff_t *ppos)
214 {
215 u32 val;
216 char *buf;
217 ssize_t ret;
218 int i;
219 int pos = 0;
220 struct iwl_priv *priv = file->private_data;
221 size_t bufsz;
222
223 /* default is to dump the entire data segment */
224 if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
225 priv->dbgfs_sram_offset = 0x800000;
226 if (priv->ucode_type == UCODE_INIT)
227 priv->dbgfs_sram_len = priv->ucode_init_data.len;
228 else
229 priv->dbgfs_sram_len = priv->ucode_data.len;
230 }
231 bufsz = 30 + priv->dbgfs_sram_len * sizeof(char) * 10;
232 buf = kmalloc(bufsz, GFP_KERNEL);
233 if (!buf)
234 return -ENOMEM;
235 pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
236 priv->dbgfs_sram_len);
237 pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
238 priv->dbgfs_sram_offset);
239 for (i = priv->dbgfs_sram_len; i > 0; i -= 4) {
240 val = iwl_read_targ_mem(priv, priv->dbgfs_sram_offset + \
241 priv->dbgfs_sram_len - i);
242 if (i < 4) {
243 switch (i) {
244 case 1:
245 val &= BYTE1_MASK;
246 break;
247 case 2:
248 val &= BYTE2_MASK;
249 break;
250 case 3:
251 val &= BYTE3_MASK;
252 break;
253 }
254 }
255 if (!(i % 16))
256 pos += scnprintf(buf + pos, bufsz - pos, "\n");
257 pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
258 }
259 pos += scnprintf(buf + pos, bufsz - pos, "\n");
260
261 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
262 kfree(buf);
263 return ret;
264 }
265
266 static ssize_t iwl_dbgfs_sram_write(struct file *file,
267 const char __user *user_buf,
268 size_t count, loff_t *ppos)
269 {
270 struct iwl_priv *priv = file->private_data;
271 char buf[64];
272 int buf_size;
273 u32 offset, len;
274
275 memset(buf, 0, sizeof(buf));
276 buf_size = min(count, sizeof(buf) - 1);
277 if (copy_from_user(buf, user_buf, buf_size))
278 return -EFAULT;
279
280 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
281 priv->dbgfs_sram_offset = offset;
282 priv->dbgfs_sram_len = len;
283 } else {
284 priv->dbgfs_sram_offset = 0;
285 priv->dbgfs_sram_len = 0;
286 }
287
288 return count;
289 }
290
291 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
292 size_t count, loff_t *ppos)
293 {
294 struct iwl_priv *priv = file->private_data;
295 struct iwl_station_entry *station;
296 int max_sta = priv->hw_params.max_stations;
297 char *buf;
298 int i, j, pos = 0;
299 ssize_t ret;
300 /* Add 30 for initial string */
301 const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
302
303 buf = kmalloc(bufsz, GFP_KERNEL);
304 if (!buf)
305 return -ENOMEM;
306
307 pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
308 priv->num_stations);
309
310 for (i = 0; i < max_sta; i++) {
311 station = &priv->stations[i];
312 if (!station->used)
313 continue;
314 pos += scnprintf(buf + pos, bufsz - pos,
315 "station %d - addr: %pM, flags: %#x\n",
316 i, station->sta.sta.addr,
317 station->sta.station_flags_msk);
318 pos += scnprintf(buf + pos, bufsz - pos,
319 "TID\tseq_num\ttxq_id\tframes\ttfds\t");
320 pos += scnprintf(buf + pos, bufsz - pos,
321 "start_idx\tbitmap\t\t\trate_n_flags\n");
322
323 for (j = 0; j < MAX_TID_COUNT; j++) {
324 pos += scnprintf(buf + pos, bufsz - pos,
325 "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
326 j, station->tid[j].seq_number,
327 station->tid[j].agg.txq_id,
328 station->tid[j].agg.frame_count,
329 station->tid[j].tfds_in_queue,
330 station->tid[j].agg.start_idx,
331 station->tid[j].agg.bitmap,
332 station->tid[j].agg.rate_n_flags);
333
334 if (station->tid[j].agg.wait_for_ba)
335 pos += scnprintf(buf + pos, bufsz - pos,
336 " - waitforba");
337 pos += scnprintf(buf + pos, bufsz - pos, "\n");
338 }
339
340 pos += scnprintf(buf + pos, bufsz - pos, "\n");
341 }
342
343 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
344 kfree(buf);
345 return ret;
346 }
347
348 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
349 char __user *user_buf,
350 size_t count,
351 loff_t *ppos)
352 {
353 ssize_t ret;
354 struct iwl_priv *priv = file->private_data;
355 int pos = 0, ofs = 0, buf_size = 0;
356 const u8 *ptr;
357 char *buf;
358 u16 eeprom_ver;
359 size_t eeprom_len = priv->cfg->eeprom_size;
360 buf_size = 4 * eeprom_len + 256;
361
362 if (eeprom_len % 16) {
363 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
364 return -ENODATA;
365 }
366
367 ptr = priv->eeprom;
368 if (!ptr) {
369 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
370 return -ENOMEM;
371 }
372
373 /* 4 characters for byte 0xYY */
374 buf = kzalloc(buf_size, GFP_KERNEL);
375 if (!buf) {
376 IWL_ERR(priv, "Can not allocate Buffer\n");
377 return -ENOMEM;
378 }
379 eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
380 pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
381 "version: 0x%x\n",
382 (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
383 ? "OTP" : "EEPROM", eeprom_ver);
384 for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
385 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
386 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
387 buf_size - pos, 0);
388 pos += strlen(buf + pos);
389 if (buf_size - pos > 0)
390 buf[pos++] = '\n';
391 }
392
393 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
394 kfree(buf);
395 return ret;
396 }
397
398 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
399 char __user *user_buf,
400 size_t count, loff_t *ppos)
401 {
402 struct iwl_priv *priv = file->private_data;
403 char *buf;
404 int pos = 0;
405 ssize_t ret = -ENOMEM;
406
407 ret = pos = priv->cfg->ops->lib->dump_nic_event_log(
408 priv, true, &buf, true);
409 if (buf) {
410 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
411 kfree(buf);
412 }
413 return ret;
414 }
415
416 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
417 const char __user *user_buf,
418 size_t count, loff_t *ppos)
419 {
420 struct iwl_priv *priv = file->private_data;
421 u32 event_log_flag;
422 char buf[8];
423 int buf_size;
424
425 memset(buf, 0, sizeof(buf));
426 buf_size = min(count, sizeof(buf) - 1);
427 if (copy_from_user(buf, user_buf, buf_size))
428 return -EFAULT;
429 if (sscanf(buf, "%d", &event_log_flag) != 1)
430 return -EFAULT;
431 if (event_log_flag == 1)
432 priv->cfg->ops->lib->dump_nic_event_log(priv, true,
433 NULL, false);
434
435 return count;
436 }
437
438
439
440 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
441 size_t count, loff_t *ppos)
442 {
443 struct iwl_priv *priv = file->private_data;
444 struct ieee80211_channel *channels = NULL;
445 const struct ieee80211_supported_band *supp_band = NULL;
446 int pos = 0, i, bufsz = PAGE_SIZE;
447 char *buf;
448 ssize_t ret;
449
450 if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
451 return -EAGAIN;
452
453 buf = kzalloc(bufsz, GFP_KERNEL);
454 if (!buf) {
455 IWL_ERR(priv, "Can not allocate Buffer\n");
456 return -ENOMEM;
457 }
458
459 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
460 if (supp_band) {
461 channels = supp_band->channels;
462
463 pos += scnprintf(buf + pos, bufsz - pos,
464 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
465 supp_band->n_channels);
466
467 for (i = 0; i < supp_band->n_channels; i++)
468 pos += scnprintf(buf + pos, bufsz - pos,
469 "%d: %ddBm: BSS%s%s, %s.\n",
470 ieee80211_frequency_to_channel(
471 channels[i].center_freq),
472 channels[i].max_power,
473 channels[i].flags & IEEE80211_CHAN_RADAR ?
474 " (IEEE 802.11h required)" : "",
475 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
476 || (channels[i].flags &
477 IEEE80211_CHAN_RADAR)) ? "" :
478 ", IBSS",
479 channels[i].flags &
480 IEEE80211_CHAN_PASSIVE_SCAN ?
481 "passive only" : "active/passive");
482 }
483 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
484 if (supp_band) {
485 channels = supp_band->channels;
486
487 pos += scnprintf(buf + pos, bufsz - pos,
488 "Displaying %d channels in 5.2GHz band (802.11a)\n",
489 supp_band->n_channels);
490
491 for (i = 0; i < supp_band->n_channels; i++)
492 pos += scnprintf(buf + pos, bufsz - pos,
493 "%d: %ddBm: BSS%s%s, %s.\n",
494 ieee80211_frequency_to_channel(
495 channels[i].center_freq),
496 channels[i].max_power,
497 channels[i].flags & IEEE80211_CHAN_RADAR ?
498 " (IEEE 802.11h required)" : "",
499 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
500 || (channels[i].flags &
501 IEEE80211_CHAN_RADAR)) ? "" :
502 ", IBSS",
503 channels[i].flags &
504 IEEE80211_CHAN_PASSIVE_SCAN ?
505 "passive only" : "active/passive");
506 }
507 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
508 kfree(buf);
509 return ret;
510 }
511
512 static ssize_t iwl_dbgfs_status_read(struct file *file,
513 char __user *user_buf,
514 size_t count, loff_t *ppos) {
515
516 struct iwl_priv *priv = file->private_data;
517 char buf[512];
518 int pos = 0;
519 const size_t bufsz = sizeof(buf);
520
521 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
522 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
523 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
524 test_bit(STATUS_INT_ENABLED, &priv->status));
525 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
526 test_bit(STATUS_RF_KILL_HW, &priv->status));
527 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
528 test_bit(STATUS_CT_KILL, &priv->status));
529 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
530 test_bit(STATUS_INIT, &priv->status));
531 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
532 test_bit(STATUS_ALIVE, &priv->status));
533 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
534 test_bit(STATUS_READY, &priv->status));
535 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
536 test_bit(STATUS_TEMPERATURE, &priv->status));
537 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
538 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
539 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
540 test_bit(STATUS_EXIT_PENDING, &priv->status));
541 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
542 test_bit(STATUS_STATISTICS, &priv->status));
543 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
544 test_bit(STATUS_SCANNING, &priv->status));
545 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
546 test_bit(STATUS_SCAN_ABORTING, &priv->status));
547 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
548 test_bit(STATUS_SCAN_HW, &priv->status));
549 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
550 test_bit(STATUS_POWER_PMI, &priv->status));
551 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
552 test_bit(STATUS_FW_ERROR, &priv->status));
553 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
554 }
555
556 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
557 char __user *user_buf,
558 size_t count, loff_t *ppos) {
559
560 struct iwl_priv *priv = file->private_data;
561 int pos = 0;
562 int cnt = 0;
563 char *buf;
564 int bufsz = 24 * 64; /* 24 items * 64 char per item */
565 ssize_t ret;
566
567 buf = kzalloc(bufsz, GFP_KERNEL);
568 if (!buf) {
569 IWL_ERR(priv, "Can not allocate Buffer\n");
570 return -ENOMEM;
571 }
572
573 pos += scnprintf(buf + pos, bufsz - pos,
574 "Interrupt Statistics Report:\n");
575
576 pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
577 priv->isr_stats.hw);
578 pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
579 priv->isr_stats.sw);
580 if (priv->isr_stats.sw > 0) {
581 pos += scnprintf(buf + pos, bufsz - pos,
582 "\tLast Restarting Code: 0x%X\n",
583 priv->isr_stats.sw_err);
584 }
585 #ifdef CONFIG_IWLWIFI_DEBUG
586 pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
587 priv->isr_stats.sch);
588 pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
589 priv->isr_stats.alive);
590 #endif
591 pos += scnprintf(buf + pos, bufsz - pos,
592 "HW RF KILL switch toggled:\t %u\n",
593 priv->isr_stats.rfkill);
594
595 pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
596 priv->isr_stats.ctkill);
597
598 pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
599 priv->isr_stats.wakeup);
600
601 pos += scnprintf(buf + pos, bufsz - pos,
602 "Rx command responses:\t\t %u\n",
603 priv->isr_stats.rx);
604 for (cnt = 0; cnt < REPLY_MAX; cnt++) {
605 if (priv->isr_stats.rx_handlers[cnt] > 0)
606 pos += scnprintf(buf + pos, bufsz - pos,
607 "\tRx handler[%36s]:\t\t %u\n",
608 get_cmd_string(cnt),
609 priv->isr_stats.rx_handlers[cnt]);
610 }
611
612 pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
613 priv->isr_stats.tx);
614
615 pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
616 priv->isr_stats.unhandled);
617
618 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
619 kfree(buf);
620 return ret;
621 }
622
623 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
624 const char __user *user_buf,
625 size_t count, loff_t *ppos)
626 {
627 struct iwl_priv *priv = file->private_data;
628 char buf[8];
629 int buf_size;
630 u32 reset_flag;
631
632 memset(buf, 0, sizeof(buf));
633 buf_size = min(count, sizeof(buf) - 1);
634 if (copy_from_user(buf, user_buf, buf_size))
635 return -EFAULT;
636 if (sscanf(buf, "%x", &reset_flag) != 1)
637 return -EFAULT;
638 if (reset_flag == 0)
639 iwl_clear_isr_stats(priv);
640
641 return count;
642 }
643
644 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
645 size_t count, loff_t *ppos)
646 {
647 struct iwl_priv *priv = file->private_data;
648 int pos = 0, i;
649 char buf[256];
650 const size_t bufsz = sizeof(buf);
651
652 for (i = 0; i < AC_NUM; i++) {
653 pos += scnprintf(buf + pos, bufsz - pos,
654 "\tcw_min\tcw_max\taifsn\ttxop\n");
655 pos += scnprintf(buf + pos, bufsz - pos,
656 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
657 priv->qos_data.def_qos_parm.ac[i].cw_min,
658 priv->qos_data.def_qos_parm.ac[i].cw_max,
659 priv->qos_data.def_qos_parm.ac[i].aifsn,
660 priv->qos_data.def_qos_parm.ac[i].edca_txop);
661 }
662 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
663 }
664
665 static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
666 size_t count, loff_t *ppos)
667 {
668 struct iwl_priv *priv = file->private_data;
669 int pos = 0;
670 char buf[256];
671 const size_t bufsz = sizeof(buf);
672
673 pos += scnprintf(buf + pos, bufsz - pos,
674 "allow blinking: %s\n",
675 (priv->allow_blinking) ? "True" : "False");
676 if (priv->allow_blinking) {
677 pos += scnprintf(buf + pos, bufsz - pos,
678 "Led blinking rate: %u\n",
679 priv->last_blink_rate);
680 pos += scnprintf(buf + pos, bufsz - pos,
681 "Last blink time: %lu\n",
682 priv->last_blink_time);
683 }
684
685 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
686 }
687
688 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
689 char __user *user_buf,
690 size_t count, loff_t *ppos)
691 {
692 struct iwl_priv *priv = file->private_data;
693 struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
694 struct iwl_tt_restriction *restriction;
695 char buf[100];
696 int pos = 0;
697 const size_t bufsz = sizeof(buf);
698
699 pos += scnprintf(buf + pos, bufsz - pos,
700 "Thermal Throttling Mode: %s\n",
701 tt->advanced_tt ? "Advance" : "Legacy");
702 pos += scnprintf(buf + pos, bufsz - pos,
703 "Thermal Throttling State: %d\n",
704 tt->state);
705 if (tt->advanced_tt) {
706 restriction = tt->restriction + tt->state;
707 pos += scnprintf(buf + pos, bufsz - pos,
708 "Tx mode: %d\n",
709 restriction->tx_stream);
710 pos += scnprintf(buf + pos, bufsz - pos,
711 "Rx mode: %d\n",
712 restriction->rx_stream);
713 pos += scnprintf(buf + pos, bufsz - pos,
714 "HT mode: %d\n",
715 restriction->is_ht);
716 }
717 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
718 }
719
720 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
721 const char __user *user_buf,
722 size_t count, loff_t *ppos)
723 {
724 struct iwl_priv *priv = file->private_data;
725 char buf[8];
726 int buf_size;
727 int ht40;
728
729 memset(buf, 0, sizeof(buf));
730 buf_size = min(count, sizeof(buf) - 1);
731 if (copy_from_user(buf, user_buf, buf_size))
732 return -EFAULT;
733 if (sscanf(buf, "%d", &ht40) != 1)
734 return -EFAULT;
735 if (!iwl_is_associated(priv))
736 priv->disable_ht40 = ht40 ? true : false;
737 else {
738 IWL_ERR(priv, "Sta associated with AP - "
739 "Change to 40MHz channel support is not allowed\n");
740 return -EINVAL;
741 }
742
743 return count;
744 }
745
746 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
747 char __user *user_buf,
748 size_t count, loff_t *ppos)
749 {
750 struct iwl_priv *priv = file->private_data;
751 char buf[100];
752 int pos = 0;
753 const size_t bufsz = sizeof(buf);
754
755 pos += scnprintf(buf + pos, bufsz - pos,
756 "11n 40MHz Mode: %s\n",
757 priv->disable_ht40 ? "Disabled" : "Enabled");
758 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
759 }
760
761 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
762 const char __user *user_buf,
763 size_t count, loff_t *ppos)
764 {
765 struct iwl_priv *priv = file->private_data;
766 char buf[8];
767 int buf_size;
768 int value;
769
770 memset(buf, 0, sizeof(buf));
771 buf_size = min(count, sizeof(buf) - 1);
772 if (copy_from_user(buf, user_buf, buf_size))
773 return -EFAULT;
774
775 if (sscanf(buf, "%d", &value) != 1)
776 return -EINVAL;
777
778 /*
779 * Our users expect 0 to be "CAM", but 0 isn't actually
780 * valid here. However, let's not confuse them and present
781 * IWL_POWER_INDEX_1 as "1", not "0".
782 */
783 if (value == 0)
784 return -EINVAL;
785 else if (value > 0)
786 value -= 1;
787
788 if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
789 return -EINVAL;
790
791 if (!iwl_is_ready_rf(priv))
792 return -EAGAIN;
793
794 priv->power_data.debug_sleep_level_override = value;
795
796 mutex_lock(&priv->mutex);
797 iwl_power_update_mode(priv, true);
798 mutex_unlock(&priv->mutex);
799
800 return count;
801 }
802
803 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
804 char __user *user_buf,
805 size_t count, loff_t *ppos)
806 {
807 struct iwl_priv *priv = file->private_data;
808 char buf[10];
809 int pos, value;
810 const size_t bufsz = sizeof(buf);
811
812 /* see the write function */
813 value = priv->power_data.debug_sleep_level_override;
814 if (value >= 0)
815 value += 1;
816
817 pos = scnprintf(buf, bufsz, "%d\n", value);
818 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
819 }
820
821 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
822 char __user *user_buf,
823 size_t count, loff_t *ppos)
824 {
825 struct iwl_priv *priv = file->private_data;
826 char buf[200];
827 int pos = 0, i;
828 const size_t bufsz = sizeof(buf);
829 struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
830
831 pos += scnprintf(buf + pos, bufsz - pos,
832 "flags: %#.2x\n", le16_to_cpu(cmd->flags));
833 pos += scnprintf(buf + pos, bufsz - pos,
834 "RX/TX timeout: %d/%d usec\n",
835 le32_to_cpu(cmd->rx_data_timeout),
836 le32_to_cpu(cmd->tx_data_timeout));
837 for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
838 pos += scnprintf(buf + pos, bufsz - pos,
839 "sleep_interval[%d]: %d\n", i,
840 le32_to_cpu(cmd->sleep_interval[i]));
841
842 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
843 }
844
845 DEBUGFS_READ_WRITE_FILE_OPS(sram);
846 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
847 DEBUGFS_READ_FILE_OPS(nvm);
848 DEBUGFS_READ_FILE_OPS(stations);
849 DEBUGFS_READ_FILE_OPS(channels);
850 DEBUGFS_READ_FILE_OPS(status);
851 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
852 DEBUGFS_READ_FILE_OPS(qos);
853 DEBUGFS_READ_FILE_OPS(led);
854 DEBUGFS_READ_FILE_OPS(thermal_throttling);
855 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
856 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
857 DEBUGFS_READ_FILE_OPS(current_sleep_command);
858
859 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
860 char __user *user_buf,
861 size_t count, loff_t *ppos)
862 {
863 struct iwl_priv *priv = file->private_data;
864 int pos = 0, ofs = 0;
865 int cnt = 0, entry;
866 struct iwl_tx_queue *txq;
867 struct iwl_queue *q;
868 struct iwl_rx_queue *rxq = &priv->rxq;
869 char *buf;
870 int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
871 (priv->cfg->num_of_queues * 32 * 8) + 400;
872 const u8 *ptr;
873 ssize_t ret;
874
875 if (!priv->txq) {
876 IWL_ERR(priv, "txq not ready\n");
877 return -EAGAIN;
878 }
879 buf = kzalloc(bufsz, GFP_KERNEL);
880 if (!buf) {
881 IWL_ERR(priv, "Can not allocate buffer\n");
882 return -ENOMEM;
883 }
884 pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
885 for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
886 txq = &priv->txq[cnt];
887 q = &txq->q;
888 pos += scnprintf(buf + pos, bufsz - pos,
889 "q[%d]: read_ptr: %u, write_ptr: %u\n",
890 cnt, q->read_ptr, q->write_ptr);
891 }
892 if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
893 ptr = priv->tx_traffic;
894 pos += scnprintf(buf + pos, bufsz - pos,
895 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
896 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
897 for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
898 entry++, ofs += 16) {
899 pos += scnprintf(buf + pos, bufsz - pos,
900 "0x%.4x ", ofs);
901 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
902 buf + pos, bufsz - pos, 0);
903 pos += strlen(buf + pos);
904 if (bufsz - pos > 0)
905 buf[pos++] = '\n';
906 }
907 }
908 }
909
910 pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
911 pos += scnprintf(buf + pos, bufsz - pos,
912 "read: %u, write: %u\n",
913 rxq->read, rxq->write);
914
915 if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
916 ptr = priv->rx_traffic;
917 pos += scnprintf(buf + pos, bufsz - pos,
918 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
919 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
920 for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
921 entry++, ofs += 16) {
922 pos += scnprintf(buf + pos, bufsz - pos,
923 "0x%.4x ", ofs);
924 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
925 buf + pos, bufsz - pos, 0);
926 pos += strlen(buf + pos);
927 if (bufsz - pos > 0)
928 buf[pos++] = '\n';
929 }
930 }
931 }
932
933 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
934 kfree(buf);
935 return ret;
936 }
937
938 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
939 const char __user *user_buf,
940 size_t count, loff_t *ppos)
941 {
942 struct iwl_priv *priv = file->private_data;
943 char buf[8];
944 int buf_size;
945 int traffic_log;
946
947 memset(buf, 0, sizeof(buf));
948 buf_size = min(count, sizeof(buf) - 1);
949 if (copy_from_user(buf, user_buf, buf_size))
950 return -EFAULT;
951 if (sscanf(buf, "%d", &traffic_log) != 1)
952 return -EFAULT;
953 if (traffic_log == 0)
954 iwl_reset_traffic_log(priv);
955
956 return count;
957 }
958
959 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
960 char __user *user_buf,
961 size_t count, loff_t *ppos) {
962
963 struct iwl_priv *priv = file->private_data;
964 struct iwl_tx_queue *txq;
965 struct iwl_queue *q;
966 char *buf;
967 int pos = 0;
968 int cnt;
969 int ret;
970 const size_t bufsz = sizeof(char) * 64 * priv->cfg->num_of_queues;
971
972 if (!priv->txq) {
973 IWL_ERR(priv, "txq not ready\n");
974 return -EAGAIN;
975 }
976 buf = kzalloc(bufsz, GFP_KERNEL);
977 if (!buf)
978 return -ENOMEM;
979
980 for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
981 txq = &priv->txq[cnt];
982 q = &txq->q;
983 pos += scnprintf(buf + pos, bufsz - pos,
984 "hwq %.2d: read=%u write=%u stop=%d"
985 " swq_id=%#.2x (ac %d/hwq %d)\n",
986 cnt, q->read_ptr, q->write_ptr,
987 !!test_bit(cnt, priv->queue_stopped),
988 txq->swq_id,
989 txq->swq_id & 0x80 ? txq->swq_id & 3 :
990 txq->swq_id,
991 txq->swq_id & 0x80 ? (txq->swq_id >> 2) &
992 0x1f : txq->swq_id);
993 if (cnt >= 4)
994 continue;
995 /* for the ACs, display the stop count too */
996 pos += scnprintf(buf + pos, bufsz - pos,
997 " stop-count: %d\n",
998 atomic_read(&priv->queue_stop_count[cnt]));
999 }
1000 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1001 kfree(buf);
1002 return ret;
1003 }
1004
1005 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
1006 char __user *user_buf,
1007 size_t count, loff_t *ppos) {
1008
1009 struct iwl_priv *priv = file->private_data;
1010 struct iwl_rx_queue *rxq = &priv->rxq;
1011 char buf[256];
1012 int pos = 0;
1013 const size_t bufsz = sizeof(buf);
1014
1015 pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
1016 rxq->read);
1017 pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
1018 rxq->write);
1019 pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1020 rxq->free_count);
1021 if (rxq->rb_stts) {
1022 pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1023 le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF);
1024 } else {
1025 pos += scnprintf(buf + pos, bufsz - pos,
1026 "closed_rb_num: Not Allocated\n");
1027 }
1028 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1029 }
1030
1031 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1032 char __user *user_buf,
1033 size_t count, loff_t *ppos)
1034 {
1035 struct iwl_priv *priv = file->private_data;
1036 return priv->cfg->ops->lib->debugfs_ops.rx_stats_read(file,
1037 user_buf, count, ppos);
1038 }
1039
1040 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1041 char __user *user_buf,
1042 size_t count, loff_t *ppos)
1043 {
1044 struct iwl_priv *priv = file->private_data;
1045 return priv->cfg->ops->lib->debugfs_ops.tx_stats_read(file,
1046 user_buf, count, ppos);
1047 }
1048
1049 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1050 char __user *user_buf,
1051 size_t count, loff_t *ppos)
1052 {
1053 struct iwl_priv *priv = file->private_data;
1054 return priv->cfg->ops->lib->debugfs_ops.general_stats_read(file,
1055 user_buf, count, ppos);
1056 }
1057
1058 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1059 char __user *user_buf,
1060 size_t count, loff_t *ppos) {
1061
1062 struct iwl_priv *priv = file->private_data;
1063 int pos = 0;
1064 int cnt = 0;
1065 char *buf;
1066 int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1067 ssize_t ret;
1068 struct iwl_sensitivity_data *data;
1069
1070 data = &priv->sensitivity_data;
1071 buf = kzalloc(bufsz, GFP_KERNEL);
1072 if (!buf) {
1073 IWL_ERR(priv, "Can not allocate Buffer\n");
1074 return -ENOMEM;
1075 }
1076
1077 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1078 data->auto_corr_ofdm);
1079 pos += scnprintf(buf + pos, bufsz - pos,
1080 "auto_corr_ofdm_mrc:\t\t %u\n",
1081 data->auto_corr_ofdm_mrc);
1082 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1083 data->auto_corr_ofdm_x1);
1084 pos += scnprintf(buf + pos, bufsz - pos,
1085 "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1086 data->auto_corr_ofdm_mrc_x1);
1087 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1088 data->auto_corr_cck);
1089 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1090 data->auto_corr_cck_mrc);
1091 pos += scnprintf(buf + pos, bufsz - pos,
1092 "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1093 data->last_bad_plcp_cnt_ofdm);
1094 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1095 data->last_fa_cnt_ofdm);
1096 pos += scnprintf(buf + pos, bufsz - pos,
1097 "last_bad_plcp_cnt_cck:\t\t %u\n",
1098 data->last_bad_plcp_cnt_cck);
1099 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1100 data->last_fa_cnt_cck);
1101 pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1102 data->nrg_curr_state);
1103 pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1104 data->nrg_prev_state);
1105 pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1106 for (cnt = 0; cnt < 10; cnt++) {
1107 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1108 data->nrg_value[cnt]);
1109 }
1110 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1111 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1112 for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1113 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1114 data->nrg_silence_rssi[cnt]);
1115 }
1116 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1117 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1118 data->nrg_silence_ref);
1119 pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1120 data->nrg_energy_idx);
1121 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1122 data->nrg_silence_idx);
1123 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1124 data->nrg_th_cck);
1125 pos += scnprintf(buf + pos, bufsz - pos,
1126 "nrg_auto_corr_silence_diff:\t %u\n",
1127 data->nrg_auto_corr_silence_diff);
1128 pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1129 data->num_in_cck_no_fa);
1130 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1131 data->nrg_th_ofdm);
1132
1133 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1134 kfree(buf);
1135 return ret;
1136 }
1137
1138
1139 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1140 char __user *user_buf,
1141 size_t count, loff_t *ppos) {
1142
1143 struct iwl_priv *priv = file->private_data;
1144 int pos = 0;
1145 int cnt = 0;
1146 char *buf;
1147 int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1148 ssize_t ret;
1149 struct iwl_chain_noise_data *data;
1150
1151 data = &priv->chain_noise_data;
1152 buf = kzalloc(bufsz, GFP_KERNEL);
1153 if (!buf) {
1154 IWL_ERR(priv, "Can not allocate Buffer\n");
1155 return -ENOMEM;
1156 }
1157
1158 pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1159 data->active_chains);
1160 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1161 data->chain_noise_a);
1162 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1163 data->chain_noise_b);
1164 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1165 data->chain_noise_c);
1166 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1167 data->chain_signal_a);
1168 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1169 data->chain_signal_b);
1170 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1171 data->chain_signal_c);
1172 pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1173 data->beacon_count);
1174
1175 pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1176 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1177 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1178 data->disconn_array[cnt]);
1179 }
1180 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1181 pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1182 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1183 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1184 data->delta_gain_code[cnt]);
1185 }
1186 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1187 pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1188 data->radio_write);
1189 pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1190 data->state);
1191
1192 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1193 kfree(buf);
1194 return ret;
1195 }
1196
1197 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1198 char __user *user_buf,
1199 size_t count, loff_t *ppos)
1200 {
1201 struct iwl_priv *priv = file->private_data;
1202 char buf[60];
1203 int pos = 0;
1204 const size_t bufsz = sizeof(buf);
1205 u32 pwrsave_status;
1206
1207 pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
1208 CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1209
1210 pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1211 pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1212 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1213 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1214 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1215 "error");
1216
1217 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1218 }
1219
1220 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1221 const char __user *user_buf,
1222 size_t count, loff_t *ppos)
1223 {
1224 struct iwl_priv *priv = file->private_data;
1225 char buf[8];
1226 int buf_size;
1227 int clear;
1228
1229 memset(buf, 0, sizeof(buf));
1230 buf_size = min(count, sizeof(buf) - 1);
1231 if (copy_from_user(buf, user_buf, buf_size))
1232 return -EFAULT;
1233 if (sscanf(buf, "%d", &clear) != 1)
1234 return -EFAULT;
1235
1236 /* make request to uCode to retrieve statistics information */
1237 mutex_lock(&priv->mutex);
1238 iwl_send_statistics_request(priv, CMD_SYNC, true);
1239 mutex_unlock(&priv->mutex);
1240
1241 return count;
1242 }
1243
1244 static ssize_t iwl_dbgfs_csr_write(struct file *file,
1245 const char __user *user_buf,
1246 size_t count, loff_t *ppos)
1247 {
1248 struct iwl_priv *priv = file->private_data;
1249 char buf[8];
1250 int buf_size;
1251 int csr;
1252
1253 memset(buf, 0, sizeof(buf));
1254 buf_size = min(count, sizeof(buf) - 1);
1255 if (copy_from_user(buf, user_buf, buf_size))
1256 return -EFAULT;
1257 if (sscanf(buf, "%d", &csr) != 1)
1258 return -EFAULT;
1259
1260 if (priv->cfg->ops->lib->dump_csr)
1261 priv->cfg->ops->lib->dump_csr(priv);
1262
1263 return count;
1264 }
1265
1266 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1267 char __user *user_buf,
1268 size_t count, loff_t *ppos) {
1269
1270 struct iwl_priv *priv = file->private_data;
1271 int pos = 0;
1272 char buf[128];
1273 const size_t bufsz = sizeof(buf);
1274
1275 pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1276 priv->event_log.ucode_trace ? "On" : "Off");
1277 pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1278 priv->event_log.non_wraps_count);
1279 pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1280 priv->event_log.wraps_once_count);
1281 pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1282 priv->event_log.wraps_more_count);
1283
1284 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1285 }
1286
1287 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1288 const char __user *user_buf,
1289 size_t count, loff_t *ppos)
1290 {
1291 struct iwl_priv *priv = file->private_data;
1292 char buf[8];
1293 int buf_size;
1294 int trace;
1295
1296 memset(buf, 0, sizeof(buf));
1297 buf_size = min(count, sizeof(buf) - 1);
1298 if (copy_from_user(buf, user_buf, buf_size))
1299 return -EFAULT;
1300 if (sscanf(buf, "%d", &trace) != 1)
1301 return -EFAULT;
1302
1303 if (trace) {
1304 priv->event_log.ucode_trace = true;
1305 /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
1306 mod_timer(&priv->ucode_trace,
1307 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
1308 } else {
1309 priv->event_log.ucode_trace = false;
1310 del_timer_sync(&priv->ucode_trace);
1311 }
1312
1313 return count;
1314 }
1315
1316 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1317 char __user *user_buf,
1318 size_t count, loff_t *ppos) {
1319
1320 struct iwl_priv *priv = file->private_data;
1321 int len = 0;
1322 char buf[20];
1323
1324 len = sprintf(buf, "0x%04X\n", le32_to_cpu(priv->active_rxon.flags));
1325 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1326 }
1327
1328 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1329 char __user *user_buf,
1330 size_t count, loff_t *ppos) {
1331
1332 struct iwl_priv *priv = file->private_data;
1333 int len = 0;
1334 char buf[20];
1335
1336 len = sprintf(buf, "0x%04X\n",
1337 le32_to_cpu(priv->active_rxon.filter_flags));
1338 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1339 }
1340
1341 static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
1342 char __user *user_buf,
1343 size_t count, loff_t *ppos)
1344 {
1345 struct iwl_priv *priv = file->private_data;
1346 char *buf;
1347 int pos = 0;
1348 ssize_t ret = -EFAULT;
1349
1350 if (priv->cfg->ops->lib->dump_fh) {
1351 ret = pos = priv->cfg->ops->lib->dump_fh(priv, &buf, true);
1352 if (buf) {
1353 ret = simple_read_from_buffer(user_buf,
1354 count, ppos, buf, pos);
1355 kfree(buf);
1356 }
1357 }
1358
1359 return ret;
1360 }
1361
1362 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1363 char __user *user_buf,
1364 size_t count, loff_t *ppos) {
1365
1366 struct iwl_priv *priv = file->private_data;
1367 int pos = 0;
1368 char buf[12];
1369 const size_t bufsz = sizeof(buf);
1370
1371 pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1372 priv->missed_beacon_threshold);
1373
1374 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1375 }
1376
1377 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1378 const char __user *user_buf,
1379 size_t count, loff_t *ppos)
1380 {
1381 struct iwl_priv *priv = file->private_data;
1382 char buf[8];
1383 int buf_size;
1384 int missed;
1385
1386 memset(buf, 0, sizeof(buf));
1387 buf_size = min(count, sizeof(buf) - 1);
1388 if (copy_from_user(buf, user_buf, buf_size))
1389 return -EFAULT;
1390 if (sscanf(buf, "%d", &missed) != 1)
1391 return -EINVAL;
1392
1393 if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1394 missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1395 priv->missed_beacon_threshold =
1396 IWL_MISSED_BEACON_THRESHOLD_DEF;
1397 else
1398 priv->missed_beacon_threshold = missed;
1399
1400 return count;
1401 }
1402
1403 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1404 char __user *user_buf,
1405 size_t count, loff_t *ppos) {
1406
1407 struct iwl_priv *priv = file->private_data;
1408 int pos = 0;
1409 char buf[12];
1410 const size_t bufsz = sizeof(buf);
1411
1412 pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1413 priv->cfg->plcp_delta_threshold);
1414
1415 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1416 }
1417
1418 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1419 const char __user *user_buf,
1420 size_t count, loff_t *ppos) {
1421
1422 struct iwl_priv *priv = file->private_data;
1423 char buf[8];
1424 int buf_size;
1425 int plcp;
1426
1427 memset(buf, 0, sizeof(buf));
1428 buf_size = min(count, sizeof(buf) - 1);
1429 if (copy_from_user(buf, user_buf, buf_size))
1430 return -EFAULT;
1431 if (sscanf(buf, "%d", &plcp) != 1)
1432 return -EINVAL;
1433 if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1434 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1435 priv->cfg->plcp_delta_threshold =
1436 IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
1437 else
1438 priv->cfg->plcp_delta_threshold = plcp;
1439 return count;
1440 }
1441
1442 static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
1443 char __user *user_buf,
1444 size_t count, loff_t *ppos) {
1445
1446 struct iwl_priv *priv = file->private_data;
1447 int i, pos = 0;
1448 char buf[300];
1449 const size_t bufsz = sizeof(buf);
1450 struct iwl_force_reset *force_reset;
1451
1452 for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
1453 force_reset = &priv->force_reset[i];
1454 pos += scnprintf(buf + pos, bufsz - pos,
1455 "Force reset method %d\n", i);
1456 pos += scnprintf(buf + pos, bufsz - pos,
1457 "\tnumber of reset request: %d\n",
1458 force_reset->reset_request_count);
1459 pos += scnprintf(buf + pos, bufsz - pos,
1460 "\tnumber of reset request success: %d\n",
1461 force_reset->reset_success_count);
1462 pos += scnprintf(buf + pos, bufsz - pos,
1463 "\tnumber of reset request reject: %d\n",
1464 force_reset->reset_reject_count);
1465 pos += scnprintf(buf + pos, bufsz - pos,
1466 "\treset duration: %lu\n",
1467 force_reset->reset_duration);
1468 }
1469 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1470 }
1471
1472 static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
1473 const char __user *user_buf,
1474 size_t count, loff_t *ppos) {
1475
1476 struct iwl_priv *priv = file->private_data;
1477 char buf[8];
1478 int buf_size;
1479 int reset, ret;
1480
1481 memset(buf, 0, sizeof(buf));
1482 buf_size = min(count, sizeof(buf) - 1);
1483 if (copy_from_user(buf, user_buf, buf_size))
1484 return -EFAULT;
1485 if (sscanf(buf, "%d", &reset) != 1)
1486 return -EINVAL;
1487 switch (reset) {
1488 case IWL_RF_RESET:
1489 case IWL_FW_RESET:
1490 ret = iwl_force_reset(priv, reset, true);
1491 break;
1492 default:
1493 return -EINVAL;
1494 }
1495 return ret ? ret : count;
1496 }
1497
1498 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
1499 const char __user *user_buf,
1500 size_t count, loff_t *ppos) {
1501
1502 struct iwl_priv *priv = file->private_data;
1503 char buf[8];
1504 int buf_size;
1505 int flush;
1506
1507 memset(buf, 0, sizeof(buf));
1508 buf_size = min(count, sizeof(buf) - 1);
1509 if (copy_from_user(buf, user_buf, buf_size))
1510 return -EFAULT;
1511 if (sscanf(buf, "%d", &flush) != 1)
1512 return -EINVAL;
1513
1514 if (iwl_is_rfkill(priv))
1515 return -EFAULT;
1516
1517 priv->cfg->ops->lib->dev_txfifo_flush(priv, IWL_DROP_ALL);
1518
1519 return count;
1520 }
1521
1522 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1523 char __user *user_buf,
1524 size_t count, loff_t *ppos)
1525 {
1526 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1527
1528 return priv->cfg->ops->lib->debugfs_ops.bt_stats_read(file,
1529 user_buf, count, ppos);
1530 }
1531
1532 DEBUGFS_READ_FILE_OPS(rx_statistics);
1533 DEBUGFS_READ_FILE_OPS(tx_statistics);
1534 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
1535 DEBUGFS_READ_FILE_OPS(rx_queue);
1536 DEBUGFS_READ_FILE_OPS(tx_queue);
1537 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
1538 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
1539 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
1540 DEBUGFS_READ_FILE_OPS(sensitivity);
1541 DEBUGFS_READ_FILE_OPS(chain_noise);
1542 DEBUGFS_READ_FILE_OPS(power_save_status);
1543 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
1544 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
1545 DEBUGFS_WRITE_FILE_OPS(csr);
1546 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
1547 DEBUGFS_READ_FILE_OPS(fh_reg);
1548 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
1549 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
1550 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
1551 DEBUGFS_READ_FILE_OPS(rxon_flags);
1552 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
1553 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
1554 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
1555
1556 /*
1557 * Create the debugfs files and directories
1558 *
1559 */
1560 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
1561 {
1562 struct dentry *phyd = priv->hw->wiphy->debugfsdir;
1563 struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
1564
1565 dir_drv = debugfs_create_dir(name, phyd);
1566 if (!dir_drv)
1567 return -ENOMEM;
1568
1569 priv->debugfs_dir = dir_drv;
1570
1571 dir_data = debugfs_create_dir("data", dir_drv);
1572 if (!dir_data)
1573 goto err;
1574 dir_rf = debugfs_create_dir("rf", dir_drv);
1575 if (!dir_rf)
1576 goto err;
1577 dir_debug = debugfs_create_dir("debug", dir_drv);
1578 if (!dir_debug)
1579 goto err;
1580
1581 DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
1582 DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
1583 DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR);
1584 DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
1585 DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
1586 DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
1587 DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
1588 DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
1589 DEBUGFS_ADD_FILE(led, dir_data, S_IRUSR);
1590 if (!priv->cfg->broken_powersave) {
1591 DEBUGFS_ADD_FILE(sleep_level_override, dir_data,
1592 S_IWUSR | S_IRUSR);
1593 DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
1594 }
1595 DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
1596 DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
1597 DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
1598 DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
1599 DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
1600 DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
1601 DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
1602 DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
1603 DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
1604 DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
1605 DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
1606 DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
1607 DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
1608 DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
1609 DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
1610 DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
1611 DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
1612 DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
1613 if (priv->cfg->ops->lib->dev_txfifo_flush)
1614 DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
1615
1616 if (priv->cfg->sensitivity_calib_by_driver)
1617 DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
1618 if (priv->cfg->chain_noise_calib_by_driver)
1619 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
1620 if (priv->cfg->ucode_tracing)
1621 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
1622 if (priv->cfg->bt_statistics)
1623 DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
1624 DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
1625 DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
1626 if (priv->cfg->sensitivity_calib_by_driver)
1627 DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
1628 &priv->disable_sens_cal);
1629 if (priv->cfg->chain_noise_calib_by_driver)
1630 DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
1631 &priv->disable_chain_noise_cal);
1632 if (priv->cfg->tx_power_by_driver)
1633 DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf,
1634 &priv->disable_tx_power_cal);
1635 return 0;
1636
1637 err:
1638 IWL_ERR(priv, "Can't create the debugfs directory\n");
1639 iwl_dbgfs_unregister(priv);
1640 return -ENOMEM;
1641 }
1642 EXPORT_SYMBOL(iwl_dbgfs_register);
1643
1644 /**
1645 * Remove the debugfs files and directories
1646 *
1647 */
1648 void iwl_dbgfs_unregister(struct iwl_priv *priv)
1649 {
1650 if (!priv->debugfs_dir)
1651 return;
1652
1653 debugfs_remove_recursive(priv->debugfs_dir);
1654 priv->debugfs_dir = NULL;
1655 }
1656 EXPORT_SYMBOL(iwl_dbgfs_unregister);
Tomato firmware and modifications.