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debugfs.c
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1 /******************************************************************************
2  *
3  * GPL LICENSE SUMMARY
4  *
5  * Copyright(c) 2008 - 2012 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 <[email protected]>
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 #include <linux/ieee80211.h>
34 #include <net/mac80211.h>
35 #include "iwl-debug.h"
36 #include "iwl-io.h"
37 #include "dev.h"
38 #include "agn.h"
39 
40 /* create and remove of files */
41 #define DEBUGFS_ADD_FILE(name, parent, mode) do { \
42  if (!debugfs_create_file(#name, mode, parent, priv, \
43  &iwl_dbgfs_##name##_ops)) \
44  goto err; \
45 } while (0)
46 
47 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
48  struct dentry *__tmp; \
49  __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \
50  parent, ptr); \
51  if (IS_ERR(__tmp) || !__tmp) \
52  goto err; \
53 } while (0)
54 
55 #define DEBUGFS_ADD_X32(name, parent, ptr) do { \
56  struct dentry *__tmp; \
57  __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR, \
58  parent, ptr); \
59  if (IS_ERR(__tmp) || !__tmp) \
60  goto err; \
61 } while (0)
62 
63 #define DEBUGFS_ADD_U32(name, parent, ptr, mode) do { \
64  struct dentry *__tmp; \
65  __tmp = debugfs_create_u32(#name, mode, \
66  parent, ptr); \
67  if (IS_ERR(__tmp) || !__tmp) \
68  goto err; \
69 } while (0)
70 
71 /* file operation */
72 #define DEBUGFS_READ_FUNC(name) \
73 static ssize_t iwl_dbgfs_##name##_read(struct file *file, \
74  char __user *user_buf, \
75  size_t count, loff_t *ppos);
76 
77 #define DEBUGFS_WRITE_FUNC(name) \
78 static ssize_t iwl_dbgfs_##name##_write(struct file *file, \
79  const char __user *user_buf, \
80  size_t count, loff_t *ppos);
81 
82 
83 #define DEBUGFS_READ_FILE_OPS(name) \
84  DEBUGFS_READ_FUNC(name); \
85 static const struct file_operations iwl_dbgfs_##name##_ops = { \
86  .read = iwl_dbgfs_##name##_read, \
87  .open = simple_open, \
88  .llseek = generic_file_llseek, \
89 };
90 
91 #define DEBUGFS_WRITE_FILE_OPS(name) \
92  DEBUGFS_WRITE_FUNC(name); \
93 static const struct file_operations iwl_dbgfs_##name##_ops = { \
94  .write = iwl_dbgfs_##name##_write, \
95  .open = simple_open, \
96  .llseek = generic_file_llseek, \
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 = simple_open, \
107  .llseek = generic_file_llseek, \
108 };
109 
110 static ssize_t iwl_dbgfs_sram_read(struct file *file,
111  char __user *user_buf,
112  size_t count, loff_t *ppos)
113 {
114  u32 val = 0;
115  char *buf;
116  ssize_t ret;
117  int i = 0;
118  bool device_format = false;
119  int offset = 0;
120  int len = 0;
121  int pos = 0;
122  int sram;
123  struct iwl_priv *priv = file->private_data;
124  const struct fw_img *img;
125  size_t bufsz;
126 
127  if (!iwl_is_ready_rf(priv))
128  return -EAGAIN;
129 
130  /* default is to dump the entire data segment */
131  if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
132  priv->dbgfs_sram_offset = 0x800000;
133  if (!priv->ucode_loaded)
134  return -EINVAL;
135  img = &priv->fw->img[priv->cur_ucode];
136  priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
137  }
138  len = priv->dbgfs_sram_len;
139 
140  if (len == -4) {
141  device_format = true;
142  len = 4;
143  }
144 
145  bufsz = 50 + len * 4;
146  buf = kmalloc(bufsz, GFP_KERNEL);
147  if (!buf)
148  return -ENOMEM;
149 
150  pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
151  len);
152  pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
153  priv->dbgfs_sram_offset);
154 
155  /* adjust sram address since reads are only on even u32 boundaries */
156  offset = priv->dbgfs_sram_offset & 0x3;
157  sram = priv->dbgfs_sram_offset & ~0x3;
158 
159  /* read the first u32 from sram */
160  val = iwl_read_targ_mem(priv->trans, sram);
161 
162  for (; len; len--) {
163  /* put the address at the start of every line */
164  if (i == 0)
165  pos += scnprintf(buf + pos, bufsz - pos,
166  "%08X: ", sram + offset);
167 
168  if (device_format)
169  pos += scnprintf(buf + pos, bufsz - pos,
170  "%02x", (val >> (8 * (3 - offset))) & 0xff);
171  else
172  pos += scnprintf(buf + pos, bufsz - pos,
173  "%02x ", (val >> (8 * offset)) & 0xff);
174 
175  /* if all bytes processed, read the next u32 from sram */
176  if (++offset == 4) {
177  sram += 4;
178  offset = 0;
179  val = iwl_read_targ_mem(priv->trans, sram);
180  }
181 
182  /* put in extra spaces and split lines for human readability */
183  if (++i == 16) {
184  i = 0;
185  pos += scnprintf(buf + pos, bufsz - pos, "\n");
186  } else if (!(i & 7)) {
187  pos += scnprintf(buf + pos, bufsz - pos, " ");
188  } else if (!(i & 3)) {
189  pos += scnprintf(buf + pos, bufsz - pos, " ");
190  }
191  }
192  if (i)
193  pos += scnprintf(buf + pos, bufsz - pos, "\n");
194 
195  ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
196  kfree(buf);
197  return ret;
198 }
199 
200 static ssize_t iwl_dbgfs_sram_write(struct file *file,
201  const char __user *user_buf,
202  size_t count, loff_t *ppos)
203 {
204  struct iwl_priv *priv = file->private_data;
205  char buf[64];
206  int buf_size;
207  u32 offset, len;
208 
209  memset(buf, 0, sizeof(buf));
210  buf_size = min(count, sizeof(buf) - 1);
211  if (copy_from_user(buf, user_buf, buf_size))
212  return -EFAULT;
213 
214  if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
215  priv->dbgfs_sram_offset = offset;
216  priv->dbgfs_sram_len = len;
217  } else if (sscanf(buf, "%x", &offset) == 1) {
218  priv->dbgfs_sram_offset = offset;
219  priv->dbgfs_sram_len = -4;
220  } else {
221  priv->dbgfs_sram_offset = 0;
222  priv->dbgfs_sram_len = 0;
223  }
224 
225  return count;
226 }
227 
228 static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
229  char __user *user_buf,
230  size_t count, loff_t *ppos)
231 {
232  struct iwl_priv *priv = file->private_data;
233  const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN];
234 
235  if (!priv->wowlan_sram)
236  return -ENODATA;
237 
238  return simple_read_from_buffer(user_buf, count, ppos,
239  priv->wowlan_sram,
240  img->sec[IWL_UCODE_SECTION_DATA].len);
241 }
242 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
243  size_t count, loff_t *ppos)
244 {
245  struct iwl_priv *priv = file->private_data;
246  struct iwl_station_entry *station;
247  struct iwl_tid_data *tid_data;
248  char *buf;
249  int i, j, pos = 0;
250  ssize_t ret;
251  /* Add 30 for initial string */
252  const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
253 
254  buf = kmalloc(bufsz, GFP_KERNEL);
255  if (!buf)
256  return -ENOMEM;
257 
258  pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
259  priv->num_stations);
260 
261  for (i = 0; i < IWLAGN_STATION_COUNT; i++) {
262  station = &priv->stations[i];
263  if (!station->used)
264  continue;
265  pos += scnprintf(buf + pos, bufsz - pos,
266  "station %d - addr: %pM, flags: %#x\n",
267  i, station->sta.sta.addr,
268  station->sta.station_flags_msk);
269  pos += scnprintf(buf + pos, bufsz - pos,
270  "TID seqno next_rclmd "
271  "rate_n_flags state txq\n");
272 
273  for (j = 0; j < IWL_MAX_TID_COUNT; j++) {
274  tid_data = &priv->tid_data[i][j];
275  pos += scnprintf(buf + pos, bufsz - pos,
276  "%d: 0x%.4x 0x%.4x 0x%.8x "
277  "%d %.2d",
278  j, tid_data->seq_number,
279  tid_data->next_reclaimed,
280  tid_data->agg.rate_n_flags,
281  tid_data->agg.state,
282  tid_data->agg.txq_id);
283 
284  if (tid_data->agg.wait_for_ba)
285  pos += scnprintf(buf + pos, bufsz - pos,
286  " - waitforba");
287  pos += scnprintf(buf + pos, bufsz - pos, "\n");
288  }
289 
290  pos += scnprintf(buf + pos, bufsz - pos, "\n");
291  }
292 
293  ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
294  kfree(buf);
295  return ret;
296 }
297 
298 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
299  char __user *user_buf,
300  size_t count,
301  loff_t *ppos)
302 {
303  ssize_t ret;
304  struct iwl_priv *priv = file->private_data;
305  int pos = 0, ofs = 0, buf_size = 0;
306  const u8 *ptr;
307  char *buf;
308  u16 eeprom_ver;
309  size_t eeprom_len = priv->eeprom_blob_size;
310  buf_size = 4 * eeprom_len + 256;
311 
312  if (eeprom_len % 16)
313  return -ENODATA;
314 
315  ptr = priv->eeprom_blob;
316  if (!ptr)
317  return -ENOMEM;
318 
319  /* 4 characters for byte 0xYY */
320  buf = kzalloc(buf_size, GFP_KERNEL);
321  if (!buf)
322  return -ENOMEM;
323 
324  eeprom_ver = priv->eeprom_data->eeprom_version;
325  pos += scnprintf(buf + pos, buf_size - pos,
326  "NVM version: 0x%x\n", eeprom_ver);
327  for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
328  pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
329  hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
330  buf_size - pos, 0);
331  pos += strlen(buf + pos);
332  if (buf_size - pos > 0)
333  buf[pos++] = '\n';
334  }
335 
336  ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
337  kfree(buf);
338  return ret;
339 }
340 
341 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
342  size_t count, loff_t *ppos)
343 {
344  struct iwl_priv *priv = file->private_data;
345  struct ieee80211_channel *channels = NULL;
346  const struct ieee80211_supported_band *supp_band = NULL;
347  int pos = 0, i, bufsz = PAGE_SIZE;
348  char *buf;
349  ssize_t ret;
350 
351  buf = kzalloc(bufsz, GFP_KERNEL);
352  if (!buf)
353  return -ENOMEM;
354 
355  supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
356  if (supp_band) {
357  channels = supp_band->channels;
358 
359  pos += scnprintf(buf + pos, bufsz - pos,
360  "Displaying %d channels in 2.4GHz band 802.11bg):\n",
361  supp_band->n_channels);
362 
363  for (i = 0; i < supp_band->n_channels; i++)
364  pos += scnprintf(buf + pos, bufsz - pos,
365  "%d: %ddBm: BSS%s%s, %s.\n",
366  channels[i].hw_value,
367  channels[i].max_power,
368  channels[i].flags & IEEE80211_CHAN_RADAR ?
369  " (IEEE 802.11h required)" : "",
370  ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
371  || (channels[i].flags &
372  IEEE80211_CHAN_RADAR)) ? "" :
373  ", IBSS",
374  channels[i].flags &
375  IEEE80211_CHAN_PASSIVE_SCAN ?
376  "passive only" : "active/passive");
377  }
378  supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
379  if (supp_band) {
380  channels = supp_band->channels;
381 
382  pos += scnprintf(buf + pos, bufsz - pos,
383  "Displaying %d channels in 5.2GHz band (802.11a)\n",
384  supp_band->n_channels);
385 
386  for (i = 0; i < supp_band->n_channels; i++)
387  pos += scnprintf(buf + pos, bufsz - pos,
388  "%d: %ddBm: BSS%s%s, %s.\n",
389  channels[i].hw_value,
390  channels[i].max_power,
391  channels[i].flags & IEEE80211_CHAN_RADAR ?
392  " (IEEE 802.11h required)" : "",
393  ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
394  || (channels[i].flags &
395  IEEE80211_CHAN_RADAR)) ? "" :
396  ", IBSS",
397  channels[i].flags &
398  IEEE80211_CHAN_PASSIVE_SCAN ?
399  "passive only" : "active/passive");
400  }
401  ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
402  kfree(buf);
403  return ret;
404 }
405 
406 static ssize_t iwl_dbgfs_status_read(struct file *file,
407  char __user *user_buf,
408  size_t count, loff_t *ppos) {
409 
410  struct iwl_priv *priv = file->private_data;
411  char buf[512];
412  int pos = 0;
413  const size_t bufsz = sizeof(buf);
414 
415  pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
416  test_bit(STATUS_RF_KILL_HW, &priv->status));
417  pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
418  test_bit(STATUS_CT_KILL, &priv->status));
419  pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
420  test_bit(STATUS_ALIVE, &priv->status));
421  pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
422  test_bit(STATUS_READY, &priv->status));
423  pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
424  test_bit(STATUS_EXIT_PENDING, &priv->status));
425  pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
426  test_bit(STATUS_STATISTICS, &priv->status));
427  pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
428  test_bit(STATUS_SCANNING, &priv->status));
429  pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
430  test_bit(STATUS_SCAN_ABORTING, &priv->status));
431  pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
432  test_bit(STATUS_SCAN_HW, &priv->status));
433  pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
434  test_bit(STATUS_POWER_PMI, &priv->status));
435  pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
436  test_bit(STATUS_FW_ERROR, &priv->status));
437  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
438 }
439 
440 static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file,
441  char __user *user_buf,
442  size_t count, loff_t *ppos) {
443 
444  struct iwl_priv *priv = file->private_data;
445 
446  int pos = 0;
447  int cnt = 0;
448  char *buf;
449  int bufsz = 24 * 64; /* 24 items * 64 char per item */
450  ssize_t ret;
451 
452  buf = kzalloc(bufsz, GFP_KERNEL);
453  if (!buf)
454  return -ENOMEM;
455 
456  for (cnt = 0; cnt < REPLY_MAX; cnt++) {
457  if (priv->rx_handlers_stats[cnt] > 0)
458  pos += scnprintf(buf + pos, bufsz - pos,
459  "\tRx handler[%36s]:\t\t %u\n",
460  iwl_dvm_get_cmd_string(cnt),
461  priv->rx_handlers_stats[cnt]);
462  }
463 
464  ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
465  kfree(buf);
466  return ret;
467 }
468 
469 static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
470  const char __user *user_buf,
471  size_t count, loff_t *ppos)
472 {
473  struct iwl_priv *priv = file->private_data;
474 
475  char buf[8];
476  int buf_size;
477  u32 reset_flag;
478 
479  memset(buf, 0, sizeof(buf));
480  buf_size = min(count, sizeof(buf) - 1);
481  if (copy_from_user(buf, user_buf, buf_size))
482  return -EFAULT;
483  if (sscanf(buf, "%x", &reset_flag) != 1)
484  return -EFAULT;
485  if (reset_flag == 0)
486  memset(&priv->rx_handlers_stats[0], 0,
487  sizeof(priv->rx_handlers_stats));
488 
489  return count;
490 }
491 
492 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
493  size_t count, loff_t *ppos)
494 {
495  struct iwl_priv *priv = file->private_data;
496  struct iwl_rxon_context *ctx;
497  int pos = 0, i;
498  char buf[256 * NUM_IWL_RXON_CTX];
499  const size_t bufsz = sizeof(buf);
500 
501  for_each_context(priv, ctx) {
502  pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
503  ctx->ctxid);
504  for (i = 0; i < AC_NUM; i++) {
505  pos += scnprintf(buf + pos, bufsz - pos,
506  "\tcw_min\tcw_max\taifsn\ttxop\n");
507  pos += scnprintf(buf + pos, bufsz - pos,
508  "AC[%d]\t%u\t%u\t%u\t%u\n", i,
509  ctx->qos_data.def_qos_parm.ac[i].cw_min,
510  ctx->qos_data.def_qos_parm.ac[i].cw_max,
511  ctx->qos_data.def_qos_parm.ac[i].aifsn,
512  ctx->qos_data.def_qos_parm.ac[i].edca_txop);
513  }
514  pos += scnprintf(buf + pos, bufsz - pos, "\n");
515  }
516  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
517 }
518 
519 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
520  char __user *user_buf,
521  size_t count, loff_t *ppos)
522 {
523  struct iwl_priv *priv = file->private_data;
524  struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
525  struct iwl_tt_restriction *restriction;
526  char buf[100];
527  int pos = 0;
528  const size_t bufsz = sizeof(buf);
529 
530  pos += scnprintf(buf + pos, bufsz - pos,
531  "Thermal Throttling Mode: %s\n",
532  tt->advanced_tt ? "Advance" : "Legacy");
533  pos += scnprintf(buf + pos, bufsz - pos,
534  "Thermal Throttling State: %d\n",
535  tt->state);
536  if (tt->advanced_tt) {
537  restriction = tt->restriction + tt->state;
538  pos += scnprintf(buf + pos, bufsz - pos,
539  "Tx mode: %d\n",
540  restriction->tx_stream);
541  pos += scnprintf(buf + pos, bufsz - pos,
542  "Rx mode: %d\n",
543  restriction->rx_stream);
544  pos += scnprintf(buf + pos, bufsz - pos,
545  "HT mode: %d\n",
546  restriction->is_ht);
547  }
548  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
549 }
550 
551 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
552  const char __user *user_buf,
553  size_t count, loff_t *ppos)
554 {
555  struct iwl_priv *priv = file->private_data;
556  char buf[8];
557  int buf_size;
558  int ht40;
559 
560  memset(buf, 0, sizeof(buf));
561  buf_size = min(count, sizeof(buf) - 1);
562  if (copy_from_user(buf, user_buf, buf_size))
563  return -EFAULT;
564  if (sscanf(buf, "%d", &ht40) != 1)
565  return -EFAULT;
566  if (!iwl_is_any_associated(priv))
567  priv->disable_ht40 = ht40 ? true : false;
568  else
569  return -EINVAL;
570 
571  return count;
572 }
573 
574 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
575  char __user *user_buf,
576  size_t count, loff_t *ppos)
577 {
578  struct iwl_priv *priv = file->private_data;
579  char buf[100];
580  int pos = 0;
581  const size_t bufsz = sizeof(buf);
582 
583  pos += scnprintf(buf + pos, bufsz - pos,
584  "11n 40MHz Mode: %s\n",
585  priv->disable_ht40 ? "Disabled" : "Enabled");
586  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
587 }
588 
589 static ssize_t iwl_dbgfs_temperature_read(struct file *file,
590  char __user *user_buf,
591  size_t count, loff_t *ppos)
592 {
593  struct iwl_priv *priv = file->private_data;
594  char buf[8];
595  int pos = 0;
596  const size_t bufsz = sizeof(buf);
597 
598  pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->temperature);
599  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
600 }
601 
602 
603 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
604  const char __user *user_buf,
605  size_t count, loff_t *ppos)
606 {
607  struct iwl_priv *priv = file->private_data;
608  char buf[8];
609  int buf_size;
610  int value;
611 
612  memset(buf, 0, sizeof(buf));
613  buf_size = min(count, sizeof(buf) - 1);
614  if (copy_from_user(buf, user_buf, buf_size))
615  return -EFAULT;
616 
617  if (sscanf(buf, "%d", &value) != 1)
618  return -EINVAL;
619 
620  /*
621  * Our users expect 0 to be "CAM", but 0 isn't actually
622  * valid here. However, let's not confuse them and present
623  * IWL_POWER_INDEX_1 as "1", not "0".
624  */
625  if (value == 0)
626  return -EINVAL;
627  else if (value > 0)
628  value -= 1;
629 
630  if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
631  return -EINVAL;
632 
633  if (!iwl_is_ready_rf(priv))
634  return -EAGAIN;
635 
636  priv->power_data.debug_sleep_level_override = value;
637 
638  mutex_lock(&priv->mutex);
639  iwl_power_update_mode(priv, true);
640  mutex_unlock(&priv->mutex);
641 
642  return count;
643 }
644 
645 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
646  char __user *user_buf,
647  size_t count, loff_t *ppos)
648 {
649  struct iwl_priv *priv = file->private_data;
650  char buf[10];
651  int pos, value;
652  const size_t bufsz = sizeof(buf);
653 
654  /* see the write function */
655  value = priv->power_data.debug_sleep_level_override;
656  if (value >= 0)
657  value += 1;
658 
659  pos = scnprintf(buf, bufsz, "%d\n", value);
660  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
661 }
662 
663 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
664  char __user *user_buf,
665  size_t count, loff_t *ppos)
666 {
667  struct iwl_priv *priv = file->private_data;
668  char buf[200];
669  int pos = 0, i;
670  const size_t bufsz = sizeof(buf);
671  struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
672 
673  pos += scnprintf(buf + pos, bufsz - pos,
674  "flags: %#.2x\n", le16_to_cpu(cmd->flags));
675  pos += scnprintf(buf + pos, bufsz - pos,
676  "RX/TX timeout: %d/%d usec\n",
677  le32_to_cpu(cmd->rx_data_timeout),
678  le32_to_cpu(cmd->tx_data_timeout));
679  for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
680  pos += scnprintf(buf + pos, bufsz - pos,
681  "sleep_interval[%d]: %d\n", i,
682  le32_to_cpu(cmd->sleep_interval[i]));
683 
684  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
685 }
686 
687 DEBUGFS_READ_WRITE_FILE_OPS(sram);
688 DEBUGFS_READ_FILE_OPS(wowlan_sram);
689 DEBUGFS_READ_FILE_OPS(nvm);
690 DEBUGFS_READ_FILE_OPS(stations);
691 DEBUGFS_READ_FILE_OPS(channels);
692 DEBUGFS_READ_FILE_OPS(status);
693 DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers);
694 DEBUGFS_READ_FILE_OPS(qos);
695 DEBUGFS_READ_FILE_OPS(thermal_throttling);
696 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
697 DEBUGFS_READ_FILE_OPS(temperature);
698 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
699 DEBUGFS_READ_FILE_OPS(current_sleep_command);
700 
701 static const char *fmt_value = " %-30s %10u\n";
702 static const char *fmt_hex = " %-30s 0x%02X\n";
703 static const char *fmt_table = " %-30s %10u %10u %10u %10u\n";
704 static const char *fmt_header =
705  "%-32s current cumulative delta max\n";
706 
707 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
708 {
709  int p = 0;
710  u32 flag;
711 
712  lockdep_assert_held(&priv->statistics.lock);
713 
714  flag = le32_to_cpu(priv->statistics.flag);
715 
716  p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
717  if (flag & UCODE_STATISTICS_CLEAR_MSK)
718  p += scnprintf(buf + p, bufsz - p,
719  "\tStatistics have been cleared\n");
720  p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
721  (flag & UCODE_STATISTICS_FREQUENCY_MSK)
722  ? "2.4 GHz" : "5.2 GHz");
723  p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
724  (flag & UCODE_STATISTICS_NARROW_BAND_MSK)
725  ? "enabled" : "disabled");
726 
727  return p;
728 }
729 
730 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
731  char __user *user_buf,
732  size_t count, loff_t *ppos)
733 {
734  struct iwl_priv *priv = file->private_data;
735  int pos = 0;
736  char *buf;
737  int bufsz = sizeof(struct statistics_rx_phy) * 40 +
738  sizeof(struct statistics_rx_non_phy) * 40 +
739  sizeof(struct statistics_rx_ht_phy) * 40 + 400;
740  ssize_t ret;
741  struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
742  struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
743  struct statistics_rx_non_phy *general, *accum_general;
744  struct statistics_rx_non_phy *delta_general, *max_general;
745  struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
746 
747  if (!iwl_is_alive(priv))
748  return -EAGAIN;
749 
750  buf = kzalloc(bufsz, GFP_KERNEL);
751  if (!buf)
752  return -ENOMEM;
753 
754  /*
755  * the statistic information display here is based on
756  * the last statistics notification from uCode
757  * might not reflect the current uCode activity
758  */
759  spin_lock_bh(&priv->statistics.lock);
760  ofdm = &priv->statistics.rx_ofdm;
761  cck = &priv->statistics.rx_cck;
762  general = &priv->statistics.rx_non_phy;
763  ht = &priv->statistics.rx_ofdm_ht;
764  accum_ofdm = &priv->accum_stats.rx_ofdm;
765  accum_cck = &priv->accum_stats.rx_cck;
766  accum_general = &priv->accum_stats.rx_non_phy;
767  accum_ht = &priv->accum_stats.rx_ofdm_ht;
768  delta_ofdm = &priv->delta_stats.rx_ofdm;
769  delta_cck = &priv->delta_stats.rx_cck;
770  delta_general = &priv->delta_stats.rx_non_phy;
771  delta_ht = &priv->delta_stats.rx_ofdm_ht;
772  max_ofdm = &priv->max_delta_stats.rx_ofdm;
773  max_cck = &priv->max_delta_stats.rx_cck;
774  max_general = &priv->max_delta_stats.rx_non_phy;
775  max_ht = &priv->max_delta_stats.rx_ofdm_ht;
776 
777  pos += iwl_statistics_flag(priv, buf, bufsz);
778  pos += scnprintf(buf + pos, bufsz - pos,
779  fmt_header, "Statistics_Rx - OFDM:");
780  pos += scnprintf(buf + pos, bufsz - pos,
781  fmt_table, "ina_cnt:",
782  le32_to_cpu(ofdm->ina_cnt),
783  accum_ofdm->ina_cnt,
784  delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
785  pos += scnprintf(buf + pos, bufsz - pos,
786  fmt_table, "fina_cnt:",
787  le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
788  delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
789  pos += scnprintf(buf + pos, bufsz - pos,
790  fmt_table, "plcp_err:",
791  le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
792  delta_ofdm->plcp_err, max_ofdm->plcp_err);
793  pos += scnprintf(buf + pos, bufsz - pos,
794  fmt_table, "crc32_err:",
795  le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
796  delta_ofdm->crc32_err, max_ofdm->crc32_err);
797  pos += scnprintf(buf + pos, bufsz - pos,
798  fmt_table, "overrun_err:",
799  le32_to_cpu(ofdm->overrun_err),
800  accum_ofdm->overrun_err, delta_ofdm->overrun_err,
801  max_ofdm->overrun_err);
802  pos += scnprintf(buf + pos, bufsz - pos,
803  fmt_table, "early_overrun_err:",
804  le32_to_cpu(ofdm->early_overrun_err),
805  accum_ofdm->early_overrun_err,
806  delta_ofdm->early_overrun_err,
807  max_ofdm->early_overrun_err);
808  pos += scnprintf(buf + pos, bufsz - pos,
809  fmt_table, "crc32_good:",
810  le32_to_cpu(ofdm->crc32_good),
811  accum_ofdm->crc32_good, delta_ofdm->crc32_good,
812  max_ofdm->crc32_good);
813  pos += scnprintf(buf + pos, bufsz - pos,
814  fmt_table, "false_alarm_cnt:",
815  le32_to_cpu(ofdm->false_alarm_cnt),
816  accum_ofdm->false_alarm_cnt,
817  delta_ofdm->false_alarm_cnt,
818  max_ofdm->false_alarm_cnt);
819  pos += scnprintf(buf + pos, bufsz - pos,
820  fmt_table, "fina_sync_err_cnt:",
821  le32_to_cpu(ofdm->fina_sync_err_cnt),
822  accum_ofdm->fina_sync_err_cnt,
823  delta_ofdm->fina_sync_err_cnt,
824  max_ofdm->fina_sync_err_cnt);
825  pos += scnprintf(buf + pos, bufsz - pos,
826  fmt_table, "sfd_timeout:",
827  le32_to_cpu(ofdm->sfd_timeout),
828  accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
829  max_ofdm->sfd_timeout);
830  pos += scnprintf(buf + pos, bufsz - pos,
831  fmt_table, "fina_timeout:",
832  le32_to_cpu(ofdm->fina_timeout),
833  accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
834  max_ofdm->fina_timeout);
835  pos += scnprintf(buf + pos, bufsz - pos,
836  fmt_table, "unresponded_rts:",
837  le32_to_cpu(ofdm->unresponded_rts),
838  accum_ofdm->unresponded_rts,
839  delta_ofdm->unresponded_rts,
840  max_ofdm->unresponded_rts);
841  pos += scnprintf(buf + pos, bufsz - pos,
842  fmt_table, "rxe_frame_lmt_ovrun:",
843  le32_to_cpu(ofdm->rxe_frame_limit_overrun),
844  accum_ofdm->rxe_frame_limit_overrun,
845  delta_ofdm->rxe_frame_limit_overrun,
846  max_ofdm->rxe_frame_limit_overrun);
847  pos += scnprintf(buf + pos, bufsz - pos,
848  fmt_table, "sent_ack_cnt:",
849  le32_to_cpu(ofdm->sent_ack_cnt),
850  accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
851  max_ofdm->sent_ack_cnt);
852  pos += scnprintf(buf + pos, bufsz - pos,
853  fmt_table, "sent_cts_cnt:",
854  le32_to_cpu(ofdm->sent_cts_cnt),
855  accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
856  max_ofdm->sent_cts_cnt);
857  pos += scnprintf(buf + pos, bufsz - pos,
858  fmt_table, "sent_ba_rsp_cnt:",
859  le32_to_cpu(ofdm->sent_ba_rsp_cnt),
860  accum_ofdm->sent_ba_rsp_cnt,
861  delta_ofdm->sent_ba_rsp_cnt,
862  max_ofdm->sent_ba_rsp_cnt);
863  pos += scnprintf(buf + pos, bufsz - pos,
864  fmt_table, "dsp_self_kill:",
865  le32_to_cpu(ofdm->dsp_self_kill),
866  accum_ofdm->dsp_self_kill,
867  delta_ofdm->dsp_self_kill,
868  max_ofdm->dsp_self_kill);
869  pos += scnprintf(buf + pos, bufsz - pos,
870  fmt_table, "mh_format_err:",
871  le32_to_cpu(ofdm->mh_format_err),
872  accum_ofdm->mh_format_err,
873  delta_ofdm->mh_format_err,
874  max_ofdm->mh_format_err);
875  pos += scnprintf(buf + pos, bufsz - pos,
876  fmt_table, "re_acq_main_rssi_sum:",
877  le32_to_cpu(ofdm->re_acq_main_rssi_sum),
878  accum_ofdm->re_acq_main_rssi_sum,
879  delta_ofdm->re_acq_main_rssi_sum,
880  max_ofdm->re_acq_main_rssi_sum);
881 
882  pos += scnprintf(buf + pos, bufsz - pos,
883  fmt_header, "Statistics_Rx - CCK:");
884  pos += scnprintf(buf + pos, bufsz - pos,
885  fmt_table, "ina_cnt:",
886  le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
887  delta_cck->ina_cnt, max_cck->ina_cnt);
888  pos += scnprintf(buf + pos, bufsz - pos,
889  fmt_table, "fina_cnt:",
890  le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
891  delta_cck->fina_cnt, max_cck->fina_cnt);
892  pos += scnprintf(buf + pos, bufsz - pos,
893  fmt_table, "plcp_err:",
894  le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
895  delta_cck->plcp_err, max_cck->plcp_err);
896  pos += scnprintf(buf + pos, bufsz - pos,
897  fmt_table, "crc32_err:",
898  le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
899  delta_cck->crc32_err, max_cck->crc32_err);
900  pos += scnprintf(buf + pos, bufsz - pos,
901  fmt_table, "overrun_err:",
902  le32_to_cpu(cck->overrun_err),
903  accum_cck->overrun_err, delta_cck->overrun_err,
904  max_cck->overrun_err);
905  pos += scnprintf(buf + pos, bufsz - pos,
906  fmt_table, "early_overrun_err:",
907  le32_to_cpu(cck->early_overrun_err),
908  accum_cck->early_overrun_err,
909  delta_cck->early_overrun_err,
910  max_cck->early_overrun_err);
911  pos += scnprintf(buf + pos, bufsz - pos,
912  fmt_table, "crc32_good:",
913  le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
914  delta_cck->crc32_good, max_cck->crc32_good);
915  pos += scnprintf(buf + pos, bufsz - pos,
916  fmt_table, "false_alarm_cnt:",
917  le32_to_cpu(cck->false_alarm_cnt),
918  accum_cck->false_alarm_cnt,
919  delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
920  pos += scnprintf(buf + pos, bufsz - pos,
921  fmt_table, "fina_sync_err_cnt:",
922  le32_to_cpu(cck->fina_sync_err_cnt),
923  accum_cck->fina_sync_err_cnt,
924  delta_cck->fina_sync_err_cnt,
925  max_cck->fina_sync_err_cnt);
926  pos += scnprintf(buf + pos, bufsz - pos,
927  fmt_table, "sfd_timeout:",
928  le32_to_cpu(cck->sfd_timeout),
929  accum_cck->sfd_timeout, delta_cck->sfd_timeout,
930  max_cck->sfd_timeout);
931  pos += scnprintf(buf + pos, bufsz - pos,
932  fmt_table, "fina_timeout:",
933  le32_to_cpu(cck->fina_timeout),
934  accum_cck->fina_timeout, delta_cck->fina_timeout,
935  max_cck->fina_timeout);
936  pos += scnprintf(buf + pos, bufsz - pos,
937  fmt_table, "unresponded_rts:",
938  le32_to_cpu(cck->unresponded_rts),
939  accum_cck->unresponded_rts, delta_cck->unresponded_rts,
940  max_cck->unresponded_rts);
941  pos += scnprintf(buf + pos, bufsz - pos,
942  fmt_table, "rxe_frame_lmt_ovrun:",
943  le32_to_cpu(cck->rxe_frame_limit_overrun),
944  accum_cck->rxe_frame_limit_overrun,
945  delta_cck->rxe_frame_limit_overrun,
946  max_cck->rxe_frame_limit_overrun);
947  pos += scnprintf(buf + pos, bufsz - pos,
948  fmt_table, "sent_ack_cnt:",
949  le32_to_cpu(cck->sent_ack_cnt),
950  accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
951  max_cck->sent_ack_cnt);
952  pos += scnprintf(buf + pos, bufsz - pos,
953  fmt_table, "sent_cts_cnt:",
954  le32_to_cpu(cck->sent_cts_cnt),
955  accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
956  max_cck->sent_cts_cnt);
957  pos += scnprintf(buf + pos, bufsz - pos,
958  fmt_table, "sent_ba_rsp_cnt:",
959  le32_to_cpu(cck->sent_ba_rsp_cnt),
960  accum_cck->sent_ba_rsp_cnt,
961  delta_cck->sent_ba_rsp_cnt,
962  max_cck->sent_ba_rsp_cnt);
963  pos += scnprintf(buf + pos, bufsz - pos,
964  fmt_table, "dsp_self_kill:",
965  le32_to_cpu(cck->dsp_self_kill),
966  accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
967  max_cck->dsp_self_kill);
968  pos += scnprintf(buf + pos, bufsz - pos,
969  fmt_table, "mh_format_err:",
970  le32_to_cpu(cck->mh_format_err),
971  accum_cck->mh_format_err, delta_cck->mh_format_err,
972  max_cck->mh_format_err);
973  pos += scnprintf(buf + pos, bufsz - pos,
974  fmt_table, "re_acq_main_rssi_sum:",
975  le32_to_cpu(cck->re_acq_main_rssi_sum),
976  accum_cck->re_acq_main_rssi_sum,
977  delta_cck->re_acq_main_rssi_sum,
978  max_cck->re_acq_main_rssi_sum);
979 
980  pos += scnprintf(buf + pos, bufsz - pos,
981  fmt_header, "Statistics_Rx - GENERAL:");
982  pos += scnprintf(buf + pos, bufsz - pos,
983  fmt_table, "bogus_cts:",
984  le32_to_cpu(general->bogus_cts),
985  accum_general->bogus_cts, delta_general->bogus_cts,
986  max_general->bogus_cts);
987  pos += scnprintf(buf + pos, bufsz - pos,
988  fmt_table, "bogus_ack:",
989  le32_to_cpu(general->bogus_ack),
990  accum_general->bogus_ack, delta_general->bogus_ack,
991  max_general->bogus_ack);
992  pos += scnprintf(buf + pos, bufsz - pos,
993  fmt_table, "non_bssid_frames:",
994  le32_to_cpu(general->non_bssid_frames),
995  accum_general->non_bssid_frames,
996  delta_general->non_bssid_frames,
997  max_general->non_bssid_frames);
998  pos += scnprintf(buf + pos, bufsz - pos,
999  fmt_table, "filtered_frames:",
1000  le32_to_cpu(general->filtered_frames),
1001  accum_general->filtered_frames,
1002  delta_general->filtered_frames,
1003  max_general->filtered_frames);
1004  pos += scnprintf(buf + pos, bufsz - pos,
1005  fmt_table, "non_channel_beacons:",
1006  le32_to_cpu(general->non_channel_beacons),
1007  accum_general->non_channel_beacons,
1008  delta_general->non_channel_beacons,
1009  max_general->non_channel_beacons);
1010  pos += scnprintf(buf + pos, bufsz - pos,
1011  fmt_table, "channel_beacons:",
1012  le32_to_cpu(general->channel_beacons),
1013  accum_general->channel_beacons,
1014  delta_general->channel_beacons,
1015  max_general->channel_beacons);
1016  pos += scnprintf(buf + pos, bufsz - pos,
1017  fmt_table, "num_missed_bcon:",
1018  le32_to_cpu(general->num_missed_bcon),
1019  accum_general->num_missed_bcon,
1020  delta_general->num_missed_bcon,
1021  max_general->num_missed_bcon);
1022  pos += scnprintf(buf + pos, bufsz - pos,
1023  fmt_table, "adc_rx_saturation_time:",
1024  le32_to_cpu(general->adc_rx_saturation_time),
1025  accum_general->adc_rx_saturation_time,
1026  delta_general->adc_rx_saturation_time,
1027  max_general->adc_rx_saturation_time);
1028  pos += scnprintf(buf + pos, bufsz - pos,
1029  fmt_table, "ina_detect_search_tm:",
1030  le32_to_cpu(general->ina_detection_search_time),
1031  accum_general->ina_detection_search_time,
1032  delta_general->ina_detection_search_time,
1033  max_general->ina_detection_search_time);
1034  pos += scnprintf(buf + pos, bufsz - pos,
1035  fmt_table, "beacon_silence_rssi_a:",
1036  le32_to_cpu(general->beacon_silence_rssi_a),
1037  accum_general->beacon_silence_rssi_a,
1038  delta_general->beacon_silence_rssi_a,
1039  max_general->beacon_silence_rssi_a);
1040  pos += scnprintf(buf + pos, bufsz - pos,
1041  fmt_table, "beacon_silence_rssi_b:",
1042  le32_to_cpu(general->beacon_silence_rssi_b),
1043  accum_general->beacon_silence_rssi_b,
1044  delta_general->beacon_silence_rssi_b,
1045  max_general->beacon_silence_rssi_b);
1046  pos += scnprintf(buf + pos, bufsz - pos,
1047  fmt_table, "beacon_silence_rssi_c:",
1048  le32_to_cpu(general->beacon_silence_rssi_c),
1049  accum_general->beacon_silence_rssi_c,
1050  delta_general->beacon_silence_rssi_c,
1051  max_general->beacon_silence_rssi_c);
1052  pos += scnprintf(buf + pos, bufsz - pos,
1053  fmt_table, "interference_data_flag:",
1054  le32_to_cpu(general->interference_data_flag),
1055  accum_general->interference_data_flag,
1056  delta_general->interference_data_flag,
1057  max_general->interference_data_flag);
1058  pos += scnprintf(buf + pos, bufsz - pos,
1059  fmt_table, "channel_load:",
1060  le32_to_cpu(general->channel_load),
1061  accum_general->channel_load,
1062  delta_general->channel_load,
1063  max_general->channel_load);
1064  pos += scnprintf(buf + pos, bufsz - pos,
1065  fmt_table, "dsp_false_alarms:",
1066  le32_to_cpu(general->dsp_false_alarms),
1067  accum_general->dsp_false_alarms,
1068  delta_general->dsp_false_alarms,
1069  max_general->dsp_false_alarms);
1070  pos += scnprintf(buf + pos, bufsz - pos,
1071  fmt_table, "beacon_rssi_a:",
1072  le32_to_cpu(general->beacon_rssi_a),
1073  accum_general->beacon_rssi_a,
1074  delta_general->beacon_rssi_a,
1075  max_general->beacon_rssi_a);
1076  pos += scnprintf(buf + pos, bufsz - pos,
1077  fmt_table, "beacon_rssi_b:",
1078  le32_to_cpu(general->beacon_rssi_b),
1079  accum_general->beacon_rssi_b,
1080  delta_general->beacon_rssi_b,
1081  max_general->beacon_rssi_b);
1082  pos += scnprintf(buf + pos, bufsz - pos,
1083  fmt_table, "beacon_rssi_c:",
1084  le32_to_cpu(general->beacon_rssi_c),
1085  accum_general->beacon_rssi_c,
1086  delta_general->beacon_rssi_c,
1087  max_general->beacon_rssi_c);
1088  pos += scnprintf(buf + pos, bufsz - pos,
1089  fmt_table, "beacon_energy_a:",
1090  le32_to_cpu(general->beacon_energy_a),
1091  accum_general->beacon_energy_a,
1092  delta_general->beacon_energy_a,
1093  max_general->beacon_energy_a);
1094  pos += scnprintf(buf + pos, bufsz - pos,
1095  fmt_table, "beacon_energy_b:",
1096  le32_to_cpu(general->beacon_energy_b),
1097  accum_general->beacon_energy_b,
1098  delta_general->beacon_energy_b,
1099  max_general->beacon_energy_b);
1100  pos += scnprintf(buf + pos, bufsz - pos,
1101  fmt_table, "beacon_energy_c:",
1102  le32_to_cpu(general->beacon_energy_c),
1103  accum_general->beacon_energy_c,
1104  delta_general->beacon_energy_c,
1105  max_general->beacon_energy_c);
1106 
1107  pos += scnprintf(buf + pos, bufsz - pos,
1108  fmt_header, "Statistics_Rx - OFDM_HT:");
1109  pos += scnprintf(buf + pos, bufsz - pos,
1110  fmt_table, "plcp_err:",
1111  le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1112  delta_ht->plcp_err, max_ht->plcp_err);
1113  pos += scnprintf(buf + pos, bufsz - pos,
1114  fmt_table, "overrun_err:",
1115  le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1116  delta_ht->overrun_err, max_ht->overrun_err);
1117  pos += scnprintf(buf + pos, bufsz - pos,
1118  fmt_table, "early_overrun_err:",
1119  le32_to_cpu(ht->early_overrun_err),
1120  accum_ht->early_overrun_err,
1121  delta_ht->early_overrun_err,
1122  max_ht->early_overrun_err);
1123  pos += scnprintf(buf + pos, bufsz - pos,
1124  fmt_table, "crc32_good:",
1125  le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1126  delta_ht->crc32_good, max_ht->crc32_good);
1127  pos += scnprintf(buf + pos, bufsz - pos,
1128  fmt_table, "crc32_err:",
1129  le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1130  delta_ht->crc32_err, max_ht->crc32_err);
1131  pos += scnprintf(buf + pos, bufsz - pos,
1132  fmt_table, "mh_format_err:",
1133  le32_to_cpu(ht->mh_format_err),
1134  accum_ht->mh_format_err,
1135  delta_ht->mh_format_err, max_ht->mh_format_err);
1136  pos += scnprintf(buf + pos, bufsz - pos,
1137  fmt_table, "agg_crc32_good:",
1138  le32_to_cpu(ht->agg_crc32_good),
1139  accum_ht->agg_crc32_good,
1140  delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1141  pos += scnprintf(buf + pos, bufsz - pos,
1142  fmt_table, "agg_mpdu_cnt:",
1143  le32_to_cpu(ht->agg_mpdu_cnt),
1144  accum_ht->agg_mpdu_cnt,
1145  delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1146  pos += scnprintf(buf + pos, bufsz - pos,
1147  fmt_table, "agg_cnt:",
1148  le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1149  delta_ht->agg_cnt, max_ht->agg_cnt);
1150  pos += scnprintf(buf + pos, bufsz - pos,
1151  fmt_table, "unsupport_mcs:",
1152  le32_to_cpu(ht->unsupport_mcs),
1153  accum_ht->unsupport_mcs,
1154  delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1155 
1156  spin_unlock_bh(&priv->statistics.lock);
1157 
1158  ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1159  kfree(buf);
1160  return ret;
1161 }
1162 
1163 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1164  char __user *user_buf,
1165  size_t count, loff_t *ppos)
1166 {
1167  struct iwl_priv *priv = file->private_data;
1168  int pos = 0;
1169  char *buf;
1170  int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1171  ssize_t ret;
1172  struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1173 
1174  if (!iwl_is_alive(priv))
1175  return -EAGAIN;
1176 
1177  buf = kzalloc(bufsz, GFP_KERNEL);
1178  if (!buf)
1179  return -ENOMEM;
1180 
1181  /* the statistic information display here is based on
1182  * the last statistics notification from uCode
1183  * might not reflect the current uCode activity
1184  */
1185  spin_lock_bh(&priv->statistics.lock);
1186 
1187  tx = &priv->statistics.tx;
1188  accum_tx = &priv->accum_stats.tx;
1189  delta_tx = &priv->delta_stats.tx;
1190  max_tx = &priv->max_delta_stats.tx;
1191 
1192  pos += iwl_statistics_flag(priv, buf, bufsz);
1193  pos += scnprintf(buf + pos, bufsz - pos,
1194  fmt_header, "Statistics_Tx:");
1195  pos += scnprintf(buf + pos, bufsz - pos,
1196  fmt_table, "preamble:",
1197  le32_to_cpu(tx->preamble_cnt),
1198  accum_tx->preamble_cnt,
1199  delta_tx->preamble_cnt, max_tx->preamble_cnt);
1200  pos += scnprintf(buf + pos, bufsz - pos,
1201  fmt_table, "rx_detected_cnt:",
1202  le32_to_cpu(tx->rx_detected_cnt),
1203  accum_tx->rx_detected_cnt,
1204  delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1205  pos += scnprintf(buf + pos, bufsz - pos,
1206  fmt_table, "bt_prio_defer_cnt:",
1207  le32_to_cpu(tx->bt_prio_defer_cnt),
1208  accum_tx->bt_prio_defer_cnt,
1209  delta_tx->bt_prio_defer_cnt,
1210  max_tx->bt_prio_defer_cnt);
1211  pos += scnprintf(buf + pos, bufsz - pos,
1212  fmt_table, "bt_prio_kill_cnt:",
1213  le32_to_cpu(tx->bt_prio_kill_cnt),
1214  accum_tx->bt_prio_kill_cnt,
1215  delta_tx->bt_prio_kill_cnt,
1216  max_tx->bt_prio_kill_cnt);
1217  pos += scnprintf(buf + pos, bufsz - pos,
1218  fmt_table, "few_bytes_cnt:",
1219  le32_to_cpu(tx->few_bytes_cnt),
1220  accum_tx->few_bytes_cnt,
1221  delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1222  pos += scnprintf(buf + pos, bufsz - pos,
1223  fmt_table, "cts_timeout:",
1224  le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1225  delta_tx->cts_timeout, max_tx->cts_timeout);
1226  pos += scnprintf(buf + pos, bufsz - pos,
1227  fmt_table, "ack_timeout:",
1228  le32_to_cpu(tx->ack_timeout),
1229  accum_tx->ack_timeout,
1230  delta_tx->ack_timeout, max_tx->ack_timeout);
1231  pos += scnprintf(buf + pos, bufsz - pos,
1232  fmt_table, "expected_ack_cnt:",
1233  le32_to_cpu(tx->expected_ack_cnt),
1234  accum_tx->expected_ack_cnt,
1235  delta_tx->expected_ack_cnt,
1236  max_tx->expected_ack_cnt);
1237  pos += scnprintf(buf + pos, bufsz - pos,
1238  fmt_table, "actual_ack_cnt:",
1239  le32_to_cpu(tx->actual_ack_cnt),
1240  accum_tx->actual_ack_cnt,
1241  delta_tx->actual_ack_cnt,
1242  max_tx->actual_ack_cnt);
1243  pos += scnprintf(buf + pos, bufsz - pos,
1244  fmt_table, "dump_msdu_cnt:",
1245  le32_to_cpu(tx->dump_msdu_cnt),
1246  accum_tx->dump_msdu_cnt,
1247  delta_tx->dump_msdu_cnt,
1248  max_tx->dump_msdu_cnt);
1249  pos += scnprintf(buf + pos, bufsz - pos,
1250  fmt_table, "abort_nxt_frame_mismatch:",
1251  le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1252  accum_tx->burst_abort_next_frame_mismatch_cnt,
1253  delta_tx->burst_abort_next_frame_mismatch_cnt,
1254  max_tx->burst_abort_next_frame_mismatch_cnt);
1255  pos += scnprintf(buf + pos, bufsz - pos,
1256  fmt_table, "abort_missing_nxt_frame:",
1257  le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1258  accum_tx->burst_abort_missing_next_frame_cnt,
1259  delta_tx->burst_abort_missing_next_frame_cnt,
1260  max_tx->burst_abort_missing_next_frame_cnt);
1261  pos += scnprintf(buf + pos, bufsz - pos,
1262  fmt_table, "cts_timeout_collision:",
1263  le32_to_cpu(tx->cts_timeout_collision),
1264  accum_tx->cts_timeout_collision,
1265  delta_tx->cts_timeout_collision,
1266  max_tx->cts_timeout_collision);
1267  pos += scnprintf(buf + pos, bufsz - pos,
1268  fmt_table, "ack_ba_timeout_collision:",
1269  le32_to_cpu(tx->ack_or_ba_timeout_collision),
1270  accum_tx->ack_or_ba_timeout_collision,
1271  delta_tx->ack_or_ba_timeout_collision,
1272  max_tx->ack_or_ba_timeout_collision);
1273  pos += scnprintf(buf + pos, bufsz - pos,
1274  fmt_table, "agg ba_timeout:",
1275  le32_to_cpu(tx->agg.ba_timeout),
1276  accum_tx->agg.ba_timeout,
1277  delta_tx->agg.ba_timeout,
1278  max_tx->agg.ba_timeout);
1279  pos += scnprintf(buf + pos, bufsz - pos,
1280  fmt_table, "agg ba_resched_frames:",
1281  le32_to_cpu(tx->agg.ba_reschedule_frames),
1282  accum_tx->agg.ba_reschedule_frames,
1283  delta_tx->agg.ba_reschedule_frames,
1284  max_tx->agg.ba_reschedule_frames);
1285  pos += scnprintf(buf + pos, bufsz - pos,
1286  fmt_table, "agg scd_query_agg_frame:",
1287  le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1288  accum_tx->agg.scd_query_agg_frame_cnt,
1289  delta_tx->agg.scd_query_agg_frame_cnt,
1290  max_tx->agg.scd_query_agg_frame_cnt);
1291  pos += scnprintf(buf + pos, bufsz - pos,
1292  fmt_table, "agg scd_query_no_agg:",
1293  le32_to_cpu(tx->agg.scd_query_no_agg),
1294  accum_tx->agg.scd_query_no_agg,
1295  delta_tx->agg.scd_query_no_agg,
1296  max_tx->agg.scd_query_no_agg);
1297  pos += scnprintf(buf + pos, bufsz - pos,
1298  fmt_table, "agg scd_query_agg:",
1299  le32_to_cpu(tx->agg.scd_query_agg),
1300  accum_tx->agg.scd_query_agg,
1301  delta_tx->agg.scd_query_agg,
1302  max_tx->agg.scd_query_agg);
1303  pos += scnprintf(buf + pos, bufsz - pos,
1304  fmt_table, "agg scd_query_mismatch:",
1305  le32_to_cpu(tx->agg.scd_query_mismatch),
1306  accum_tx->agg.scd_query_mismatch,
1307  delta_tx->agg.scd_query_mismatch,
1308  max_tx->agg.scd_query_mismatch);
1309  pos += scnprintf(buf + pos, bufsz - pos,
1310  fmt_table, "agg frame_not_ready:",
1311  le32_to_cpu(tx->agg.frame_not_ready),
1312  accum_tx->agg.frame_not_ready,
1313  delta_tx->agg.frame_not_ready,
1314  max_tx->agg.frame_not_ready);
1315  pos += scnprintf(buf + pos, bufsz - pos,
1316  fmt_table, "agg underrun:",
1317  le32_to_cpu(tx->agg.underrun),
1318  accum_tx->agg.underrun,
1319  delta_tx->agg.underrun, max_tx->agg.underrun);
1320  pos += scnprintf(buf + pos, bufsz - pos,
1321  fmt_table, "agg bt_prio_kill:",
1322  le32_to_cpu(tx->agg.bt_prio_kill),
1323  accum_tx->agg.bt_prio_kill,
1324  delta_tx->agg.bt_prio_kill,
1325  max_tx->agg.bt_prio_kill);
1326  pos += scnprintf(buf + pos, bufsz - pos,
1327  fmt_table, "agg rx_ba_rsp_cnt:",
1328  le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1329  accum_tx->agg.rx_ba_rsp_cnt,
1330  delta_tx->agg.rx_ba_rsp_cnt,
1331  max_tx->agg.rx_ba_rsp_cnt);
1332 
1333  if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
1334  pos += scnprintf(buf + pos, bufsz - pos,
1335  "tx power: (1/2 dB step)\n");
1336  if ((priv->eeprom_data->valid_tx_ant & ANT_A) &&
1337  tx->tx_power.ant_a)
1338  pos += scnprintf(buf + pos, bufsz - pos,
1339  fmt_hex, "antenna A:",
1340  tx->tx_power.ant_a);
1341  if ((priv->eeprom_data->valid_tx_ant & ANT_B) &&
1342  tx->tx_power.ant_b)
1343  pos += scnprintf(buf + pos, bufsz - pos,
1344  fmt_hex, "antenna B:",
1345  tx->tx_power.ant_b);
1346  if ((priv->eeprom_data->valid_tx_ant & ANT_C) &&
1347  tx->tx_power.ant_c)
1348  pos += scnprintf(buf + pos, bufsz - pos,
1349  fmt_hex, "antenna C:",
1350  tx->tx_power.ant_c);
1351  }
1352 
1353  spin_unlock_bh(&priv->statistics.lock);
1354 
1355  ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1356  kfree(buf);
1357  return ret;
1358 }
1359 
1360 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1361  char __user *user_buf,
1362  size_t count, loff_t *ppos)
1363 {
1364  struct iwl_priv *priv = file->private_data;
1365  int pos = 0;
1366  char *buf;
1367  int bufsz = sizeof(struct statistics_general) * 10 + 300;
1368  ssize_t ret;
1369  struct statistics_general_common *general, *accum_general;
1370  struct statistics_general_common *delta_general, *max_general;
1371  struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1372  struct statistics_div *div, *accum_div, *delta_div, *max_div;
1373 
1374  if (!iwl_is_alive(priv))
1375  return -EAGAIN;
1376 
1377  buf = kzalloc(bufsz, GFP_KERNEL);
1378  if (!buf)
1379  return -ENOMEM;
1380 
1381  /* the statistic information display here is based on
1382  * the last statistics notification from uCode
1383  * might not reflect the current uCode activity
1384  */
1385 
1386  spin_lock_bh(&priv->statistics.lock);
1387 
1388  general = &priv->statistics.common;
1389  dbg = &priv->statistics.common.dbg;
1390  div = &priv->statistics.common.div;
1391  accum_general = &priv->accum_stats.common;
1392  accum_dbg = &priv->accum_stats.common.dbg;
1393  accum_div = &priv->accum_stats.common.div;
1394  delta_general = &priv->delta_stats.common;
1395  max_general = &priv->max_delta_stats.common;
1396  delta_dbg = &priv->delta_stats.common.dbg;
1397  max_dbg = &priv->max_delta_stats.common.dbg;
1398  delta_div = &priv->delta_stats.common.div;
1399  max_div = &priv->max_delta_stats.common.div;
1400 
1401  pos += iwl_statistics_flag(priv, buf, bufsz);
1402  pos += scnprintf(buf + pos, bufsz - pos,
1403  fmt_header, "Statistics_General:");
1404  pos += scnprintf(buf + pos, bufsz - pos,
1405  fmt_value, "temperature:",
1406  le32_to_cpu(general->temperature));
1407  pos += scnprintf(buf + pos, bufsz - pos,
1408  fmt_value, "temperature_m:",
1409  le32_to_cpu(general->temperature_m));
1410  pos += scnprintf(buf + pos, bufsz - pos,
1411  fmt_value, "ttl_timestamp:",
1412  le32_to_cpu(general->ttl_timestamp));
1413  pos += scnprintf(buf + pos, bufsz - pos,
1414  fmt_table, "burst_check:",
1415  le32_to_cpu(dbg->burst_check),
1416  accum_dbg->burst_check,
1417  delta_dbg->burst_check, max_dbg->burst_check);
1418  pos += scnprintf(buf + pos, bufsz - pos,
1419  fmt_table, "burst_count:",
1420  le32_to_cpu(dbg->burst_count),
1421  accum_dbg->burst_count,
1422  delta_dbg->burst_count, max_dbg->burst_count);
1423  pos += scnprintf(buf + pos, bufsz - pos,
1424  fmt_table, "wait_for_silence_timeout_count:",
1425  le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
1426  accum_dbg->wait_for_silence_timeout_cnt,
1427  delta_dbg->wait_for_silence_timeout_cnt,
1428  max_dbg->wait_for_silence_timeout_cnt);
1429  pos += scnprintf(buf + pos, bufsz - pos,
1430  fmt_table, "sleep_time:",
1431  le32_to_cpu(general->sleep_time),
1432  accum_general->sleep_time,
1433  delta_general->sleep_time, max_general->sleep_time);
1434  pos += scnprintf(buf + pos, bufsz - pos,
1435  fmt_table, "slots_out:",
1436  le32_to_cpu(general->slots_out),
1437  accum_general->slots_out,
1438  delta_general->slots_out, max_general->slots_out);
1439  pos += scnprintf(buf + pos, bufsz - pos,
1440  fmt_table, "slots_idle:",
1441  le32_to_cpu(general->slots_idle),
1442  accum_general->slots_idle,
1443  delta_general->slots_idle, max_general->slots_idle);
1444  pos += scnprintf(buf + pos, bufsz - pos,
1445  fmt_table, "tx_on_a:",
1446  le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1447  delta_div->tx_on_a, max_div->tx_on_a);
1448  pos += scnprintf(buf + pos, bufsz - pos,
1449  fmt_table, "tx_on_b:",
1450  le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1451  delta_div->tx_on_b, max_div->tx_on_b);
1452  pos += scnprintf(buf + pos, bufsz - pos,
1453  fmt_table, "exec_time:",
1454  le32_to_cpu(div->exec_time), accum_div->exec_time,
1455  delta_div->exec_time, max_div->exec_time);
1456  pos += scnprintf(buf + pos, bufsz - pos,
1457  fmt_table, "probe_time:",
1458  le32_to_cpu(div->probe_time), accum_div->probe_time,
1459  delta_div->probe_time, max_div->probe_time);
1460  pos += scnprintf(buf + pos, bufsz - pos,
1461  fmt_table, "rx_enable_counter:",
1462  le32_to_cpu(general->rx_enable_counter),
1463  accum_general->rx_enable_counter,
1464  delta_general->rx_enable_counter,
1465  max_general->rx_enable_counter);
1466  pos += scnprintf(buf + pos, bufsz - pos,
1467  fmt_table, "num_of_sos_states:",
1468  le32_to_cpu(general->num_of_sos_states),
1469  accum_general->num_of_sos_states,
1470  delta_general->num_of_sos_states,
1471  max_general->num_of_sos_states);
1472 
1473  spin_unlock_bh(&priv->statistics.lock);
1474 
1475  ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1476  kfree(buf);
1477  return ret;
1478 }
1479 
1480 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1481  char __user *user_buf,
1482  size_t count, loff_t *ppos)
1483 {
1484  struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1485  int pos = 0;
1486  char *buf;
1487  int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
1488  ssize_t ret;
1489  struct statistics_bt_activity *bt, *accum_bt;
1490 
1491  if (!iwl_is_alive(priv))
1492  return -EAGAIN;
1493 
1494  if (!priv->bt_enable_flag)
1495  return -EINVAL;
1496 
1497  /* make request to uCode to retrieve statistics information */
1498  mutex_lock(&priv->mutex);
1499  ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
1500  mutex_unlock(&priv->mutex);
1501 
1502  if (ret)
1503  return -EAGAIN;
1504  buf = kzalloc(bufsz, GFP_KERNEL);
1505  if (!buf)
1506  return -ENOMEM;
1507 
1508  /*
1509  * the statistic information display here is based on
1510  * the last statistics notification from uCode
1511  * might not reflect the current uCode activity
1512  */
1513 
1514  spin_lock_bh(&priv->statistics.lock);
1515 
1516  bt = &priv->statistics.bt_activity;
1517  accum_bt = &priv->accum_stats.bt_activity;
1518 
1519  pos += iwl_statistics_flag(priv, buf, bufsz);
1520  pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
1521  pos += scnprintf(buf + pos, bufsz - pos,
1522  "\t\t\tcurrent\t\t\taccumulative\n");
1523  pos += scnprintf(buf + pos, bufsz - pos,
1524  "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1525  le32_to_cpu(bt->hi_priority_tx_req_cnt),
1526  accum_bt->hi_priority_tx_req_cnt);
1527  pos += scnprintf(buf + pos, bufsz - pos,
1528  "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1529  le32_to_cpu(bt->hi_priority_tx_denied_cnt),
1530  accum_bt->hi_priority_tx_denied_cnt);
1531  pos += scnprintf(buf + pos, bufsz - pos,
1532  "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1533  le32_to_cpu(bt->lo_priority_tx_req_cnt),
1534  accum_bt->lo_priority_tx_req_cnt);
1535  pos += scnprintf(buf + pos, bufsz - pos,
1536  "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1537  le32_to_cpu(bt->lo_priority_tx_denied_cnt),
1538  accum_bt->lo_priority_tx_denied_cnt);
1539  pos += scnprintf(buf + pos, bufsz - pos,
1540  "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1541  le32_to_cpu(bt->hi_priority_rx_req_cnt),
1542  accum_bt->hi_priority_rx_req_cnt);
1543  pos += scnprintf(buf + pos, bufsz - pos,
1544  "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1545  le32_to_cpu(bt->hi_priority_rx_denied_cnt),
1546  accum_bt->hi_priority_rx_denied_cnt);
1547  pos += scnprintf(buf + pos, bufsz - pos,
1548  "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1549  le32_to_cpu(bt->lo_priority_rx_req_cnt),
1550  accum_bt->lo_priority_rx_req_cnt);
1551  pos += scnprintf(buf + pos, bufsz - pos,
1552  "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1553  le32_to_cpu(bt->lo_priority_rx_denied_cnt),
1554  accum_bt->lo_priority_rx_denied_cnt);
1555 
1556  pos += scnprintf(buf + pos, bufsz - pos,
1557  "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
1558  le32_to_cpu(priv->statistics.num_bt_kills),
1559  priv->statistics.accum_num_bt_kills);
1560 
1561  spin_unlock_bh(&priv->statistics.lock);
1562 
1563  ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1564  kfree(buf);
1565  return ret;
1566 }
1567 
1568 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1569  char __user *user_buf,
1570  size_t count, loff_t *ppos)
1571 {
1572  struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1573  int pos = 0;
1574  char *buf;
1575  int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
1576  (sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
1577  ssize_t ret;
1578 
1579  if (!iwl_is_alive(priv))
1580  return -EAGAIN;
1581 
1582  buf = kzalloc(bufsz, GFP_KERNEL);
1583  if (!buf)
1584  return -ENOMEM;
1585 
1586  pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
1587  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
1588  iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1589  priv->reply_tx_stats.pp_delay);
1590  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1591  iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1592  priv->reply_tx_stats.pp_few_bytes);
1593  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1594  iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1595  priv->reply_tx_stats.pp_bt_prio);
1596  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1597  iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1598  priv->reply_tx_stats.pp_quiet_period);
1599  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1600  iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1601  priv->reply_tx_stats.pp_calc_ttak);
1602  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1603  iwl_get_tx_fail_reason(
1604  TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1605  priv->reply_tx_stats.int_crossed_retry);
1606  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1607  iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1608  priv->reply_tx_stats.short_limit);
1609  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1610  iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1611  priv->reply_tx_stats.long_limit);
1612  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1613  iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1614  priv->reply_tx_stats.fifo_underrun);
1615  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1616  iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1617  priv->reply_tx_stats.drain_flow);
1618  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1619  iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1620  priv->reply_tx_stats.rfkill_flush);
1621  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1622  iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1623  priv->reply_tx_stats.life_expire);
1624  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1625  iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1626  priv->reply_tx_stats.dest_ps);
1627  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1628  iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1629  priv->reply_tx_stats.host_abort);
1630  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1631  iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1632  priv->reply_tx_stats.pp_delay);
1633  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1634  iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1635  priv->reply_tx_stats.sta_invalid);
1636  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1637  iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1638  priv->reply_tx_stats.frag_drop);
1639  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1640  iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1641  priv->reply_tx_stats.tid_disable);
1642  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1643  iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1644  priv->reply_tx_stats.fifo_flush);
1645  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1646  iwl_get_tx_fail_reason(
1647  TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1648  priv->reply_tx_stats.insuff_cf_poll);
1649  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1650  iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1651  priv->reply_tx_stats.fail_hw_drop);
1652  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1653  iwl_get_tx_fail_reason(
1654  TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1655  priv->reply_tx_stats.sta_color_mismatch);
1656  pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1657  priv->reply_tx_stats.unknown);
1658 
1659  pos += scnprintf(buf + pos, bufsz - pos,
1660  "\nStatistics_Agg_TX_Error:\n");
1661 
1662  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1663  iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1664  priv->reply_agg_tx_stats.underrun);
1665  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1666  iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1667  priv->reply_agg_tx_stats.bt_prio);
1668  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1669  iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1670  priv->reply_agg_tx_stats.few_bytes);
1671  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1672  iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
1673  priv->reply_agg_tx_stats.abort);
1674  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1675  iwl_get_agg_tx_fail_reason(
1676  AGG_TX_STATE_LAST_SENT_TTL_MSK),
1677  priv->reply_agg_tx_stats.last_sent_ttl);
1678  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1679  iwl_get_agg_tx_fail_reason(
1680  AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK),
1681  priv->reply_agg_tx_stats.last_sent_try);
1682  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1683  iwl_get_agg_tx_fail_reason(
1684  AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
1685  priv->reply_agg_tx_stats.last_sent_bt_kill);
1686  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1687  iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
1688  priv->reply_agg_tx_stats.scd_query);
1689  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1690  iwl_get_agg_tx_fail_reason(
1691  AGG_TX_STATE_TEST_BAD_CRC32_MSK),
1692  priv->reply_agg_tx_stats.bad_crc32);
1693  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1694  iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
1695  priv->reply_agg_tx_stats.response);
1696  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1697  iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
1698  priv->reply_agg_tx_stats.dump_tx);
1699  pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1700  iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
1701  priv->reply_agg_tx_stats.delay_tx);
1702  pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1703  priv->reply_agg_tx_stats.unknown);
1704 
1705  ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1706  kfree(buf);
1707  return ret;
1708 }
1709 
1710 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1711  char __user *user_buf,
1712  size_t count, loff_t *ppos) {
1713 
1714  struct iwl_priv *priv = file->private_data;
1715  int pos = 0;
1716  int cnt = 0;
1717  char *buf;
1718  int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1719  ssize_t ret;
1720  struct iwl_sensitivity_data *data;
1721 
1722  data = &priv->sensitivity_data;
1723  buf = kzalloc(bufsz, GFP_KERNEL);
1724  if (!buf)
1725  return -ENOMEM;
1726 
1727  pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1728  data->auto_corr_ofdm);
1729  pos += scnprintf(buf + pos, bufsz - pos,
1730  "auto_corr_ofdm_mrc:\t\t %u\n",
1731  data->auto_corr_ofdm_mrc);
1732  pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1733  data->auto_corr_ofdm_x1);
1734  pos += scnprintf(buf + pos, bufsz - pos,
1735  "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1736  data->auto_corr_ofdm_mrc_x1);
1737  pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1738  data->auto_corr_cck);
1739  pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1740  data->auto_corr_cck_mrc);
1741  pos += scnprintf(buf + pos, bufsz - pos,
1742  "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1743  data->last_bad_plcp_cnt_ofdm);
1744  pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1745  data->last_fa_cnt_ofdm);
1746  pos += scnprintf(buf + pos, bufsz - pos,
1747  "last_bad_plcp_cnt_cck:\t\t %u\n",
1748  data->last_bad_plcp_cnt_cck);
1749  pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1750  data->last_fa_cnt_cck);
1751  pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1752  data->nrg_curr_state);
1753  pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1754  data->nrg_prev_state);
1755  pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1756  for (cnt = 0; cnt < 10; cnt++) {
1757  pos += scnprintf(buf + pos, bufsz - pos, " %u",
1758  data->nrg_value[cnt]);
1759  }
1760  pos += scnprintf(buf + pos, bufsz - pos, "\n");
1761  pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1762  for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1763  pos += scnprintf(buf + pos, bufsz - pos, " %u",
1764  data->nrg_silence_rssi[cnt]);
1765  }
1766  pos += scnprintf(buf + pos, bufsz - pos, "\n");
1767  pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1768  data->nrg_silence_ref);
1769  pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1770  data->nrg_energy_idx);
1771  pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1772  data->nrg_silence_idx);
1773  pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1774  data->nrg_th_cck);
1775  pos += scnprintf(buf + pos, bufsz - pos,
1776  "nrg_auto_corr_silence_diff:\t %u\n",
1777  data->nrg_auto_corr_silence_diff);
1778  pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1779  data->num_in_cck_no_fa);
1780  pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1781  data->nrg_th_ofdm);
1782 
1783  ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1784  kfree(buf);
1785  return ret;
1786 }
1787 
1788 
1789 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1790  char __user *user_buf,
1791  size_t count, loff_t *ppos) {
1792 
1793  struct iwl_priv *priv = file->private_data;
1794  int pos = 0;
1795  int cnt = 0;
1796  char *buf;
1797  int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1798  ssize_t ret;
1799  struct iwl_chain_noise_data *data;
1800 
1801  data = &priv->chain_noise_data;
1802  buf = kzalloc(bufsz, GFP_KERNEL);
1803  if (!buf)
1804  return -ENOMEM;
1805 
1806  pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1807  data->active_chains);
1808  pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1809  data->chain_noise_a);
1810  pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1811  data->chain_noise_b);
1812  pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1813  data->chain_noise_c);
1814  pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1815  data->chain_signal_a);
1816  pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1817  data->chain_signal_b);
1818  pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1819  data->chain_signal_c);
1820  pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1821  data->beacon_count);
1822 
1823  pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1824  for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1825  pos += scnprintf(buf + pos, bufsz - pos, " %u",
1826  data->disconn_array[cnt]);
1827  }
1828  pos += scnprintf(buf + pos, bufsz - pos, "\n");
1829  pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1830  for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1831  pos += scnprintf(buf + pos, bufsz - pos, " %u",
1832  data->delta_gain_code[cnt]);
1833  }
1834  pos += scnprintf(buf + pos, bufsz - pos, "\n");
1835  pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1836  data->radio_write);
1837  pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1838  data->state);
1839 
1840  ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1841  kfree(buf);
1842  return ret;
1843 }
1844 
1845 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1846  char __user *user_buf,
1847  size_t count, loff_t *ppos)
1848 {
1849  struct iwl_priv *priv = file->private_data;
1850  char buf[60];
1851  int pos = 0;
1852  const size_t bufsz = sizeof(buf);
1853  u32 pwrsave_status;
1854 
1855  pwrsave_status = iwl_read32(priv->trans, CSR_GP_CNTRL) &
1856  CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1857 
1858  pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1859  pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1860  (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1861  (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1862  (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1863  "error");
1864 
1865  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1866 }
1867 
1868 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1869  const char __user *user_buf,
1870  size_t count, loff_t *ppos)
1871 {
1872  struct iwl_priv *priv = file->private_data;
1873  char buf[8];
1874  int buf_size;
1875  int clear;
1876 
1877  memset(buf, 0, sizeof(buf));
1878  buf_size = min(count, sizeof(buf) - 1);
1879  if (copy_from_user(buf, user_buf, buf_size))
1880  return -EFAULT;
1881  if (sscanf(buf, "%d", &clear) != 1)
1882  return -EFAULT;
1883 
1884  /* make request to uCode to retrieve statistics information */
1885  mutex_lock(&priv->mutex);
1886  iwl_send_statistics_request(priv, CMD_SYNC, true);
1887  mutex_unlock(&priv->mutex);
1888 
1889  return count;
1890 }
1891 
1892 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1893  char __user *user_buf,
1894  size_t count, loff_t *ppos) {
1895 
1896  struct iwl_priv *priv = file->private_data;
1897  int pos = 0;
1898  char buf[128];
1899  const size_t bufsz = sizeof(buf);
1900 
1901  pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1902  priv->event_log.ucode_trace ? "On" : "Off");
1903  pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1904  priv->event_log.non_wraps_count);
1905  pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1906  priv->event_log.wraps_once_count);
1907  pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1908  priv->event_log.wraps_more_count);
1909 
1910  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1911 }
1912 
1913 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1914  const char __user *user_buf,
1915  size_t count, loff_t *ppos)
1916 {
1917  struct iwl_priv *priv = file->private_data;
1918  char buf[8];
1919  int buf_size;
1920  int trace;
1921 
1922  memset(buf, 0, sizeof(buf));
1923  buf_size = min(count, sizeof(buf) - 1);
1924  if (copy_from_user(buf, user_buf, buf_size))
1925  return -EFAULT;
1926  if (sscanf(buf, "%d", &trace) != 1)
1927  return -EFAULT;
1928 
1929  if (trace) {
1930  priv->event_log.ucode_trace = true;
1931  if (iwl_is_alive(priv)) {
1932  /* start collecting data now */
1933  mod_timer(&priv->ucode_trace, jiffies);
1934  }
1935  } else {
1936  priv->event_log.ucode_trace = false;
1937  del_timer_sync(&priv->ucode_trace);
1938  }
1939 
1940  return count;
1941 }
1942 
1943 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1944  char __user *user_buf,
1945  size_t count, loff_t *ppos) {
1946 
1947  struct iwl_priv *priv = file->private_data;
1948  int len = 0;
1949  char buf[20];
1950 
1951  len = sprintf(buf, "0x%04X\n",
1952  le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1953  return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1954 }
1955 
1956 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1957  char __user *user_buf,
1958  size_t count, loff_t *ppos) {
1959 
1960  struct iwl_priv *priv = file->private_data;
1961  int len = 0;
1962  char buf[20];
1963 
1964  len = sprintf(buf, "0x%04X\n",
1965  le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1966  return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1967 }
1968 
1969 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1970  char __user *user_buf,
1971  size_t count, loff_t *ppos) {
1972 
1973  struct iwl_priv *priv = file->private_data;
1974  int pos = 0;
1975  char buf[12];
1976  const size_t bufsz = sizeof(buf);
1977 
1978  pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1979  priv->missed_beacon_threshold);
1980 
1981  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1982 }
1983 
1984 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1985  const char __user *user_buf,
1986  size_t count, loff_t *ppos)
1987 {
1988  struct iwl_priv *priv = file->private_data;
1989  char buf[8];
1990  int buf_size;
1991  int missed;
1992 
1993  memset(buf, 0, sizeof(buf));
1994  buf_size = min(count, sizeof(buf) - 1);
1995  if (copy_from_user(buf, user_buf, buf_size))
1996  return -EFAULT;
1997  if (sscanf(buf, "%d", &missed) != 1)
1998  return -EINVAL;
1999 
2000  if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
2001  missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
2002  priv->missed_beacon_threshold =
2003  IWL_MISSED_BEACON_THRESHOLD_DEF;
2004  else
2005  priv->missed_beacon_threshold = missed;
2006 
2007  return count;
2008 }
2009 
2010 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
2011  char __user *user_buf,
2012  size_t count, loff_t *ppos) {
2013 
2014  struct iwl_priv *priv = file->private_data;
2015  int pos = 0;
2016  char buf[12];
2017  const size_t bufsz = sizeof(buf);
2018 
2019  pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
2020  priv->plcp_delta_threshold);
2021 
2022  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2023 }
2024 
2025 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
2026  const char __user *user_buf,
2027  size_t count, loff_t *ppos) {
2028 
2029  struct iwl_priv *priv = file->private_data;
2030  char buf[8];
2031  int buf_size;
2032  int plcp;
2033 
2034  memset(buf, 0, sizeof(buf));
2035  buf_size = min(count, sizeof(buf) - 1);
2036  if (copy_from_user(buf, user_buf, buf_size))
2037  return -EFAULT;
2038  if (sscanf(buf, "%d", &plcp) != 1)
2039  return -EINVAL;
2040  if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
2041  (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
2042  priv->plcp_delta_threshold =
2043  IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
2044  else
2045  priv->plcp_delta_threshold = plcp;
2046  return count;
2047 }
2048 
2049 static ssize_t iwl_dbgfs_rf_reset_read(struct file *file,
2050  char __user *user_buf,
2051  size_t count, loff_t *ppos)
2052 {
2053  struct iwl_priv *priv = file->private_data;
2054  int pos = 0;
2055  char buf[300];
2056  const size_t bufsz = sizeof(buf);
2057  struct iwl_rf_reset *rf_reset = &priv->rf_reset;
2058 
2059  pos += scnprintf(buf + pos, bufsz - pos,
2060  "RF reset statistics\n");
2061  pos += scnprintf(buf + pos, bufsz - pos,
2062  "\tnumber of reset request: %d\n",
2063  rf_reset->reset_request_count);
2064  pos += scnprintf(buf + pos, bufsz - pos,
2065  "\tnumber of reset request success: %d\n",
2066  rf_reset->reset_success_count);
2067  pos += scnprintf(buf + pos, bufsz - pos,
2068  "\tnumber of reset request reject: %d\n",
2069  rf_reset->reset_reject_count);
2070 
2071  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2072 }
2073 
2074 static ssize_t iwl_dbgfs_rf_reset_write(struct file *file,
2075  const char __user *user_buf,
2076  size_t count, loff_t *ppos) {
2077 
2078  struct iwl_priv *priv = file->private_data;
2079  int ret;
2080 
2081  ret = iwl_force_rf_reset(priv, true);
2082  return ret ? ret : count;
2083 }
2084 
2085 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
2086  const char __user *user_buf,
2087  size_t count, loff_t *ppos) {
2088 
2089  struct iwl_priv *priv = file->private_data;
2090  char buf[8];
2091  int buf_size;
2092  int flush;
2093 
2094  memset(buf, 0, sizeof(buf));
2095  buf_size = min(count, sizeof(buf) - 1);
2096  if (copy_from_user(buf, user_buf, buf_size))
2097  return -EFAULT;
2098  if (sscanf(buf, "%d", &flush) != 1)
2099  return -EINVAL;
2100 
2101  if (iwl_is_rfkill(priv))
2102  return -EFAULT;
2103 
2104  iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
2105 
2106  return count;
2107 }
2108 
2109 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
2110  char __user *user_buf,
2111  size_t count, loff_t *ppos) {
2112 
2113  struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2114  int pos = 0;
2115  char buf[200];
2116  const size_t bufsz = sizeof(buf);
2117 
2118  if (!priv->bt_enable_flag) {
2119  pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2120  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2121  }
2122  pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
2123  priv->bt_enable_flag);
2124  pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
2125  priv->bt_full_concurrent ? "full concurrency" : "3-wire");
2126  pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
2127  "last traffic notif: %d\n",
2128  priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2129  pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2130  "kill_ack_mask: %x, kill_cts_mask: %x\n",
2131  priv->bt_ch_announce, priv->kill_ack_mask,
2132  priv->kill_cts_mask);
2133 
2134  pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
2135  switch (priv->bt_traffic_load) {
2136  case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
2137  pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
2138  break;
2139  case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
2140  pos += scnprintf(buf + pos, bufsz - pos, "High\n");
2141  break;
2142  case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
2143  pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
2144  break;
2145  case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
2146  default:
2147  pos += scnprintf(buf + pos, bufsz - pos, "None\n");
2148  break;
2149  }
2150 
2151  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2152 }
2153 
2154 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
2155  char __user *user_buf,
2156  size_t count, loff_t *ppos)
2157 {
2158  struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2159 
2160  int pos = 0;
2161  char buf[40];
2162  const size_t bufsz = sizeof(buf);
2163 
2164  if (priv->cfg->ht_params)
2165  pos += scnprintf(buf + pos, bufsz - pos,
2166  "use %s for aggregation\n",
2167  (priv->hw_params.use_rts_for_aggregation) ?
2168  "rts/cts" : "cts-to-self");
2169  else
2170  pos += scnprintf(buf + pos, bufsz - pos, "N/A");
2171 
2172  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2173 }
2174 
2175 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
2176  const char __user *user_buf,
2177  size_t count, loff_t *ppos) {
2178 
2179  struct iwl_priv *priv = file->private_data;
2180  char buf[8];
2181  int buf_size;
2182  int rts;
2183 
2184  if (!priv->cfg->ht_params)
2185  return -EINVAL;
2186 
2187  memset(buf, 0, sizeof(buf));
2188  buf_size = min(count, sizeof(buf) - 1);
2189  if (copy_from_user(buf, user_buf, buf_size))
2190  return -EFAULT;
2191  if (sscanf(buf, "%d", &rts) != 1)
2192  return -EINVAL;
2193  if (rts)
2194  priv->hw_params.use_rts_for_aggregation = true;
2195  else
2196  priv->hw_params.use_rts_for_aggregation = false;
2197  return count;
2198 }
2199 
2200 static int iwl_cmd_echo_test(struct iwl_priv *priv)
2201 {
2202  int ret;
2203  struct iwl_host_cmd cmd = {
2204  .id = REPLY_ECHO,
2205  .len = { 0 },
2206  .flags = CMD_SYNC,
2207  };
2208 
2209  ret = iwl_dvm_send_cmd(priv, &cmd);
2210  if (ret)
2211  IWL_ERR(priv, "echo testing fail: 0X%x\n", ret);
2212  else
2213  IWL_DEBUG_INFO(priv, "echo testing pass\n");
2214  return ret;
2215 }
2216 
2217 static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
2218  const char __user *user_buf,
2219  size_t count, loff_t *ppos)
2220 {
2221  struct iwl_priv *priv = file->private_data;
2222  char buf[8];
2223  int buf_size;
2224 
2225  memset(buf, 0, sizeof(buf));
2226  buf_size = min(count, sizeof(buf) - 1);
2227  if (copy_from_user(buf, user_buf, buf_size))
2228  return -EFAULT;
2229 
2230  iwl_cmd_echo_test(priv);
2231  return count;
2232 }
2233 
2234 #ifdef CONFIG_IWLWIFI_DEBUG
2235 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
2236  char __user *user_buf,
2237  size_t count, loff_t *ppos)
2238 {
2239  struct iwl_priv *priv = file->private_data;
2240  char *buf;
2241  int pos = 0;
2242  ssize_t ret = -ENOMEM;
2243 
2244  ret = pos = iwl_dump_nic_event_log(priv, true, &buf, true);
2245  if (buf) {
2246  ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2247  kfree(buf);
2248  }
2249  return ret;
2250 }
2251 
2252 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
2253  const char __user *user_buf,
2254  size_t count, loff_t *ppos)
2255 {
2256  struct iwl_priv *priv = file->private_data;
2257  u32 event_log_flag;
2258  char buf[8];
2259  int buf_size;
2260 
2261  /* check that the interface is up */
2262  if (!iwl_is_ready(priv))
2263  return -EAGAIN;
2264 
2265  memset(buf, 0, sizeof(buf));
2266  buf_size = min(count, sizeof(buf) - 1);
2267  if (copy_from_user(buf, user_buf, buf_size))
2268  return -EFAULT;
2269  if (sscanf(buf, "%d", &event_log_flag) != 1)
2270  return -EFAULT;
2271  if (event_log_flag == 1)
2272  iwl_dump_nic_event_log(priv, true, NULL, false);
2273 
2274  return count;
2275 }
2276 #endif
2277 
2278 static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file,
2279  char __user *user_buf,
2280  size_t count, loff_t *ppos)
2281 {
2282  struct iwl_priv *priv = file->private_data;
2283  char buf[120];
2284  int pos = 0;
2285  const size_t bufsz = sizeof(buf);
2286 
2287  pos += scnprintf(buf + pos, bufsz - pos,
2288  "Sensitivity calibrations %s\n",
2289  (priv->calib_disabled &
2290  IWL_SENSITIVITY_CALIB_DISABLED) ?
2291  "DISABLED" : "ENABLED");
2292  pos += scnprintf(buf + pos, bufsz - pos,
2293  "Chain noise calibrations %s\n",
2294  (priv->calib_disabled &
2295  IWL_CHAIN_NOISE_CALIB_DISABLED) ?
2296  "DISABLED" : "ENABLED");
2297  pos += scnprintf(buf + pos, bufsz - pos,
2298  "Tx power calibrations %s\n",
2299  (priv->calib_disabled &
2300  IWL_TX_POWER_CALIB_DISABLED) ?
2301  "DISABLED" : "ENABLED");
2302 
2303  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2304 }
2305 
2306 static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
2307  const char __user *user_buf,
2308  size_t count, loff_t *ppos)
2309 {
2310  struct iwl_priv *priv = file->private_data;
2311  char buf[8];
2312  u32 calib_disabled;
2313  int buf_size;
2314 
2315  memset(buf, 0, sizeof(buf));
2316  buf_size = min(count, sizeof(buf) - 1);
2317  if (copy_from_user(buf, user_buf, buf_size))
2318  return -EFAULT;
2319  if (sscanf(buf, "%x", &calib_disabled) != 1)
2320  return -EFAULT;
2321 
2322  priv->calib_disabled = calib_disabled;
2323 
2324  return count;
2325 }
2326 
2327 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2328 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2329 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2330 DEBUGFS_READ_FILE_OPS(sensitivity);
2331 DEBUGFS_READ_FILE_OPS(chain_noise);
2332 DEBUGFS_READ_FILE_OPS(power_save_status);
2333 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2334 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2335 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2336 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2337 DEBUGFS_READ_WRITE_FILE_OPS(rf_reset);
2338 DEBUGFS_READ_FILE_OPS(rxon_flags);
2339 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2340 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2341 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2342 DEBUGFS_READ_FILE_OPS(bt_traffic);
2343 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2344 DEBUGFS_READ_FILE_OPS(reply_tx_error);
2345 DEBUGFS_WRITE_FILE_OPS(echo_test);
2346 #ifdef CONFIG_IWLWIFI_DEBUG
2347 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
2348 #endif
2349 DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
2350 
2351 /*
2352  * Create the debugfs files and directories
2353  *
2354  */
2355 int iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
2356 {
2357  struct dentry *dir_data, *dir_rf, *dir_debug;
2358 
2359  priv->debugfs_dir = dbgfs_dir;
2360 
2361  dir_data = debugfs_create_dir("data", dbgfs_dir);
2362  if (!dir_data)
2363  goto err;
2364  dir_rf = debugfs_create_dir("rf", dbgfs_dir);
2365  if (!dir_rf)
2366  goto err;
2367  dir_debug = debugfs_create_dir("debug", dbgfs_dir);
2368  if (!dir_debug)
2369  goto err;
2370 
2371  DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
2372  DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
2373  DEBUGFS_ADD_FILE(wowlan_sram, dir_data, S_IRUSR);
2374  DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
2375  DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
2376  DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
2377  DEBUGFS_ADD_FILE(rx_handlers, dir_data, S_IWUSR | S_IRUSR);
2378  DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
2379  DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
2380  DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
2381  DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
2382  DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
2383  DEBUGFS_ADD_FILE(temperature, dir_data, S_IRUSR);
2384 
2385  DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
2386  DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
2387  DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
2388  DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
2389  DEBUGFS_ADD_FILE(rf_reset, dir_debug, S_IWUSR | S_IRUSR);
2390  DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
2391  DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
2392  DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
2393  DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
2394  DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
2395  DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
2396  DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
2397  DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
2398  DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
2399  DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
2400  DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
2401  DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
2402  DEBUGFS_ADD_FILE(echo_test, dir_debug, S_IWUSR);
2403 #ifdef CONFIG_IWLWIFI_DEBUG
2404  DEBUGFS_ADD_FILE(log_event, dir_debug, S_IWUSR | S_IRUSR);
2405 #endif
2406 
2407  if (iwl_advanced_bt_coexist(priv))
2408  DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
2409 
2410  /* Calibrations disabled/enabled status*/
2411  DEBUGFS_ADD_FILE(calib_disabled, dir_rf, S_IWUSR | S_IRUSR);
2412 
2413  /*
2414  * Create a symlink with mac80211. This is not very robust, as it does
2415  * not remove the symlink created. The implicit assumption is that
2416  * when the opmode exits, mac80211 will also exit, and will remove
2417  * this symlink as part of its cleanup.
2418  */
2419  if (priv->mac80211_registered) {
2420  char buf[100];
2421  struct dentry *mac80211_dir, *dev_dir, *root_dir;
2422 
2423  dev_dir = dbgfs_dir->d_parent;
2424  root_dir = dev_dir->d_parent;
2425  mac80211_dir = priv->hw->wiphy->debugfsdir;
2426 
2427  snprintf(buf, 100, "../../%s/%s", root_dir->d_name.name,
2428  dev_dir->d_name.name);
2429 
2430  if (!debugfs_create_symlink("iwlwifi", mac80211_dir, buf))
2431  goto err;
2432  }
2433 
2434  return 0;
2435 
2436 err:
2437  IWL_ERR(priv, "failed to create the dvm debugfs entries\n");
2438  return -ENOMEM;
2439 }
Generated on Thu Jan 10 2013 13:22:02 for Linux Kernel by   doxygen 1.8.2