iwlwifi: Traffic type and counter for debugFs
[linux-2.6.git] / drivers / net / wireless / iwlwifi / iwl-debugfs.c
1 /******************************************************************************
2  *
3  * GPL LICENSE SUMMARY
4  *
5  * Copyright(c) 2008 - 2009 Intel Corporation. All rights reserved.
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of version 2 of the GNU General Public License as
9  * published by the Free Software Foundation.
10  *
11  * This program is distributed in the hope that it will be useful, but
12  * WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
19  * USA
20  *
21  * The full GNU General Public License is included in this distribution
22  * in the file called LICENSE.GPL.
23  *
24  * Contact Information:
25  *  Intel Linux Wireless <ilw@linux.intel.com>
26  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27  *****************************************************************************/
28
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/debugfs.h>
32
33 #include <linux/ieee80211.h>
34 #include <net/mac80211.h>
35
36
37 #include "iwl-dev.h"
38 #include "iwl-debug.h"
39 #include "iwl-core.h"
40 #include "iwl-io.h"
41
42
43 /* create and remove of files */
44 #define DEBUGFS_ADD_DIR(name, parent) do {                              \
45         dbgfs->dir_##name = debugfs_create_dir(#name, parent);          \
46         if (!(dbgfs->dir_##name))                                       \
47                 goto err;                                               \
48 } while (0)
49
50 #define DEBUGFS_ADD_FILE(name, parent) do {                             \
51         dbgfs->dbgfs_##parent##_files.file_##name =                     \
52         debugfs_create_file(#name, S_IWUSR | S_IRUSR,                   \
53                                 dbgfs->dir_##parent, priv,              \
54                                 &iwl_dbgfs_##name##_ops);               \
55         if (!(dbgfs->dbgfs_##parent##_files.file_##name))               \
56                 goto err;                                               \
57 } while (0)
58
59 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do {                        \
60         dbgfs->dbgfs_##parent##_files.file_##name =                     \
61         debugfs_create_bool(#name, S_IWUSR | S_IRUSR,                   \
62                             dbgfs->dir_##parent, ptr);                  \
63         if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name)           \
64                         || !dbgfs->dbgfs_##parent##_files.file_##name)  \
65                 goto err;                                               \
66 } while (0)
67
68 #define DEBUGFS_ADD_X32(name, parent, ptr) do {                        \
69         dbgfs->dbgfs_##parent##_files.file_##name =                     \
70         debugfs_create_x32(#name, S_IRUSR, dbgfs->dir_##parent, ptr);   \
71         if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name)           \
72                         || !dbgfs->dbgfs_##parent##_files.file_##name)  \
73                 goto err;                                               \
74 } while (0)
75
76 #define DEBUGFS_REMOVE(name)  do {              \
77         debugfs_remove(name);                   \
78         name = NULL;                            \
79 } while (0);
80
81 /* file operation */
82 #define DEBUGFS_READ_FUNC(name)                                         \
83 static ssize_t iwl_dbgfs_##name##_read(struct file *file,               \
84                                         char __user *user_buf,          \
85                                         size_t count, loff_t *ppos);
86
87 #define DEBUGFS_WRITE_FUNC(name)                                        \
88 static ssize_t iwl_dbgfs_##name##_write(struct file *file,              \
89                                         const char __user *user_buf,    \
90                                         size_t count, loff_t *ppos);
91
92
93 static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
94 {
95         file->private_data = inode->i_private;
96         return 0;
97 }
98
99 #define DEBUGFS_READ_FILE_OPS(name)                                     \
100         DEBUGFS_READ_FUNC(name);                                        \
101 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
102         .read = iwl_dbgfs_##name##_read,                                \
103         .open = iwl_dbgfs_open_file_generic,                            \
104 };
105
106 #define DEBUGFS_WRITE_FILE_OPS(name)                                    \
107         DEBUGFS_WRITE_FUNC(name);                                       \
108 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
109         .write = iwl_dbgfs_##name##_write,                              \
110         .open = iwl_dbgfs_open_file_generic,                            \
111 };
112
113
114 #define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
115         DEBUGFS_READ_FUNC(name);                                        \
116         DEBUGFS_WRITE_FUNC(name);                                       \
117 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
118         .write = iwl_dbgfs_##name##_write,                              \
119         .read = iwl_dbgfs_##name##_read,                                \
120         .open = iwl_dbgfs_open_file_generic,                            \
121 };
122
123
124 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
125                                                 char __user *user_buf,
126                                                 size_t count, loff_t *ppos) {
127
128         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
129         char *buf;
130         int pos = 0;
131
132         int cnt;
133         ssize_t ret;
134         const size_t bufsz = 100 + sizeof(char) * 24 * (MANAGEMENT_MAX + CONTROL_MAX);
135         buf = kzalloc(bufsz, GFP_KERNEL);
136         if (!buf)
137                 return -ENOMEM;
138         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
139         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
140                 pos += scnprintf(buf + pos, bufsz - pos,
141                                  "\t%s\t\t: %u\n",
142                                  get_mgmt_string(cnt),
143                                  priv->tx_stats.mgmt[cnt]);
144         }
145         pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
146         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
147                 pos += scnprintf(buf + pos, bufsz - pos,
148                                  "\t%s\t\t: %u\n",
149                                  get_ctrl_string(cnt),
150                                  priv->tx_stats.ctrl[cnt]);
151         }
152         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
153         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
154                          priv->tx_stats.data_cnt);
155         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
156                          priv->tx_stats.data_bytes);
157         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
158         kfree(buf);
159         return ret;
160 }
161
162 static ssize_t iwl_dbgfs_tx_statistics_write(struct file *file,
163                                         const char __user *user_buf,
164                                         size_t count, loff_t *ppos)
165 {
166         struct iwl_priv *priv = file->private_data;
167         u32 clear_flag;
168         char buf[8];
169         int buf_size;
170
171         memset(buf, 0, sizeof(buf));
172         buf_size = min(count, sizeof(buf) -  1);
173         if (copy_from_user(buf, user_buf, buf_size))
174                 return -EFAULT;
175         if (sscanf(buf, "%x", &clear_flag) != 1)
176                 return -EFAULT;
177         if (clear_flag == 1)
178                 iwl_clear_tx_stats(priv);
179
180         return count;
181 }
182
183 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
184                                                 char __user *user_buf,
185                                                 size_t count, loff_t *ppos) {
186
187         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
188         char *buf;
189         int pos = 0;
190         int cnt;
191         ssize_t ret;
192         const size_t bufsz = 100 +
193                 sizeof(char) * 24 * (MANAGEMENT_MAX + CONTROL_MAX);
194         buf = kzalloc(bufsz, GFP_KERNEL);
195         if (!buf)
196                 return -ENOMEM;
197
198         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
199         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
200                 pos += scnprintf(buf + pos, bufsz - pos,
201                                  "\t%s\t\t: %u\n",
202                                  get_mgmt_string(cnt),
203                                  priv->rx_stats.mgmt[cnt]);
204         }
205         pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
206         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
207                 pos += scnprintf(buf + pos, bufsz - pos,
208                                  "\t%s\t\t: %u\n",
209                                  get_ctrl_string(cnt),
210                                  priv->rx_stats.ctrl[cnt]);
211         }
212         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
213         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
214                          priv->rx_stats.data_cnt);
215         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
216                          priv->rx_stats.data_bytes);
217
218         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
219         kfree(buf);
220         return ret;
221 }
222
223 static ssize_t iwl_dbgfs_rx_statistics_write(struct file *file,
224                                         const char __user *user_buf,
225                                         size_t count, loff_t *ppos)
226 {
227         struct iwl_priv *priv = file->private_data;
228         u32 clear_flag;
229         char buf[8];
230         int buf_size;
231
232         memset(buf, 0, sizeof(buf));
233         buf_size = min(count, sizeof(buf) -  1);
234         if (copy_from_user(buf, user_buf, buf_size))
235                 return -EFAULT;
236         if (sscanf(buf, "%x", &clear_flag) != 1)
237                 return -EFAULT;
238         if (clear_flag == 1)
239                 iwl_clear_rx_stats(priv);
240         return count;
241 }
242
243 #define BYTE1_MASK 0x000000ff;
244 #define BYTE2_MASK 0x0000ffff;
245 #define BYTE3_MASK 0x00ffffff;
246 static ssize_t iwl_dbgfs_sram_read(struct file *file,
247                                         char __user *user_buf,
248                                         size_t count, loff_t *ppos)
249 {
250         u32 val;
251         char buf[1024];
252         ssize_t ret;
253         int i;
254         int pos = 0;
255         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
256         const size_t bufsz = sizeof(buf);
257
258         for (i = priv->dbgfs->sram_len; i > 0; i -= 4) {
259                 val = iwl_read_targ_mem(priv, priv->dbgfs->sram_offset + \
260                                         priv->dbgfs->sram_len - i);
261                 if (i < 4) {
262                         switch (i) {
263                         case 1:
264                                 val &= BYTE1_MASK;
265                                 break;
266                         case 2:
267                                 val &= BYTE2_MASK;
268                                 break;
269                         case 3:
270                                 val &= BYTE3_MASK;
271                                 break;
272                         }
273                 }
274                 pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
275         }
276         pos += scnprintf(buf + pos, bufsz - pos, "\n");
277
278         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
279         return ret;
280 }
281
282 static ssize_t iwl_dbgfs_sram_write(struct file *file,
283                                         const char __user *user_buf,
284                                         size_t count, loff_t *ppos)
285 {
286         struct iwl_priv *priv = file->private_data;
287         char buf[64];
288         int buf_size;
289         u32 offset, len;
290
291         memset(buf, 0, sizeof(buf));
292         buf_size = min(count, sizeof(buf) -  1);
293         if (copy_from_user(buf, user_buf, buf_size))
294                 return -EFAULT;
295
296         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
297                 priv->dbgfs->sram_offset = offset;
298                 priv->dbgfs->sram_len = len;
299         } else {
300                 priv->dbgfs->sram_offset = 0;
301                 priv->dbgfs->sram_len = 0;
302         }
303
304         return count;
305 }
306
307 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
308                                         size_t count, loff_t *ppos)
309 {
310         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
311         struct iwl_station_entry *station;
312         int max_sta = priv->hw_params.max_stations;
313         char *buf;
314         int i, j, pos = 0;
315         ssize_t ret;
316         /* Add 30 for initial string */
317         const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
318
319         buf = kmalloc(bufsz, GFP_KERNEL);
320         if (!buf)
321                 return -ENOMEM;
322
323         pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
324                         priv->num_stations);
325
326         for (i = 0; i < max_sta; i++) {
327                 station = &priv->stations[i];
328                 if (station->used) {
329                         pos += scnprintf(buf + pos, bufsz - pos,
330                                         "station %d:\ngeneral data:\n", i+1);
331                         pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n",
332                                         station->sta.sta.sta_id);
333                         pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n",
334                                         station->sta.mode);
335                         pos += scnprintf(buf + pos, bufsz - pos,
336                                         "flags: 0x%x\n",
337                                         station->sta.station_flags_msk);
338                         pos += scnprintf(buf + pos, bufsz - pos,
339                                         "ps_status: %u\n", station->ps_status);
340                         pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n");
341                         pos += scnprintf(buf + pos, bufsz - pos,
342                                         "seq_num\t\ttxq_id");
343                         pos += scnprintf(buf + pos, bufsz - pos,
344                                         "\tframe_count\twait_for_ba\t");
345                         pos += scnprintf(buf + pos, bufsz - pos,
346                                         "start_idx\tbitmap0\t");
347                         pos += scnprintf(buf + pos, bufsz - pos,
348                                         "bitmap1\trate_n_flags");
349                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
350
351                         for (j = 0; j < MAX_TID_COUNT; j++) {
352                                 pos += scnprintf(buf + pos, bufsz - pos,
353                                                 "[%d]:\t\t%u", j,
354                                                 station->tid[j].seq_number);
355                                 pos += scnprintf(buf + pos, bufsz - pos,
356                                                 "\t%u\t\t%u\t\t%u\t\t",
357                                                 station->tid[j].agg.txq_id,
358                                                 station->tid[j].agg.frame_count,
359                                                 station->tid[j].agg.wait_for_ba);
360                                 pos += scnprintf(buf + pos, bufsz - pos,
361                                                 "%u\t%llu\t%u",
362                                                 station->tid[j].agg.start_idx,
363                                                 (unsigned long long)station->tid[j].agg.bitmap,
364                                                 station->tid[j].agg.rate_n_flags);
365                                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
366                         }
367                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
368                 }
369         }
370
371         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
372         kfree(buf);
373         return ret;
374 }
375
376 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
377                                        char __user *user_buf,
378                                        size_t count,
379                                        loff_t *ppos)
380 {
381         ssize_t ret;
382         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
383         int pos = 0, ofs = 0, buf_size = 0;
384         const u8 *ptr;
385         char *buf;
386         size_t eeprom_len = priv->cfg->eeprom_size;
387         buf_size = 4 * eeprom_len + 256;
388
389         if (eeprom_len % 16) {
390                 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
391                 return -ENODATA;
392         }
393
394         ptr = priv->eeprom;
395         if (!ptr) {
396                 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
397                 return -ENOMEM;
398         }
399
400         /* 4 characters for byte 0xYY */
401         buf = kzalloc(buf_size, GFP_KERNEL);
402         if (!buf) {
403                 IWL_ERR(priv, "Can not allocate Buffer\n");
404                 return -ENOMEM;
405         }
406         pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s\n",
407                         (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
408                         ? "OTP" : "EEPROM");
409         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
410                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
411                 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
412                                    buf_size - pos, 0);
413                 pos += strlen(buf);
414                 if (buf_size - pos > 0)
415                         buf[pos++] = '\n';
416         }
417
418         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
419         kfree(buf);
420         return ret;
421 }
422
423 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
424                                         const char __user *user_buf,
425                                         size_t count, loff_t *ppos)
426 {
427         struct iwl_priv *priv = file->private_data;
428         u32 event_log_flag;
429         char buf[8];
430         int buf_size;
431
432         memset(buf, 0, sizeof(buf));
433         buf_size = min(count, sizeof(buf) -  1);
434         if (copy_from_user(buf, user_buf, buf_size))
435                 return -EFAULT;
436         if (sscanf(buf, "%d", &event_log_flag) != 1)
437                 return -EFAULT;
438         if (event_log_flag == 1)
439                 iwl_dump_nic_event_log(priv);
440
441         return count;
442 }
443
444
445
446 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
447                                        size_t count, loff_t *ppos)
448 {
449         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
450         struct ieee80211_channel *channels = NULL;
451         const struct ieee80211_supported_band *supp_band = NULL;
452         int pos = 0, i, bufsz = PAGE_SIZE;
453         char *buf;
454         ssize_t ret;
455
456         if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
457                 return -EAGAIN;
458
459         buf = kzalloc(bufsz, GFP_KERNEL);
460         if (!buf) {
461                 IWL_ERR(priv, "Can not allocate Buffer\n");
462                 return -ENOMEM;
463         }
464
465         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
466         if (supp_band) {
467                 channels = supp_band->channels;
468
469                 pos += scnprintf(buf + pos, bufsz - pos,
470                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
471                                 supp_band->n_channels);
472
473                 for (i = 0; i < supp_band->n_channels; i++)
474                         pos += scnprintf(buf + pos, bufsz - pos,
475                                         "%d: %ddBm: BSS%s%s, %s.\n",
476                                         ieee80211_frequency_to_channel(
477                                         channels[i].center_freq),
478                                         channels[i].max_power,
479                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
480                                         " (IEEE 802.11h required)" : "",
481                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
482                                         || (channels[i].flags &
483                                         IEEE80211_CHAN_RADAR)) ? "" :
484                                         ", IBSS",
485                                         channels[i].flags &
486                                         IEEE80211_CHAN_PASSIVE_SCAN ?
487                                         "passive only" : "active/passive");
488         }
489         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
490         if (supp_band) {
491                 channels = supp_band->channels;
492
493                 pos += scnprintf(buf + pos, bufsz - pos,
494                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
495                                 supp_band->n_channels);
496
497                 for (i = 0; i < supp_band->n_channels; i++)
498                         pos += scnprintf(buf + pos, bufsz - pos,
499                                         "%d: %ddBm: BSS%s%s, %s.\n",
500                                         ieee80211_frequency_to_channel(
501                                         channels[i].center_freq),
502                                         channels[i].max_power,
503                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
504                                         " (IEEE 802.11h required)" : "",
505                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
506                                         || (channels[i].flags &
507                                         IEEE80211_CHAN_RADAR)) ? "" :
508                                         ", IBSS",
509                                         channels[i].flags &
510                                         IEEE80211_CHAN_PASSIVE_SCAN ?
511                                         "passive only" : "active/passive");
512         }
513         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
514         kfree(buf);
515         return ret;
516 }
517
518 static ssize_t iwl_dbgfs_status_read(struct file *file,
519                                                 char __user *user_buf,
520                                                 size_t count, loff_t *ppos) {
521
522         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
523         char buf[512];
524         int pos = 0;
525         const size_t bufsz = sizeof(buf);
526
527         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
528                 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
529         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_SYNC_ACTIVE: %d\n",
530                 test_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status));
531         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
532                 test_bit(STATUS_INT_ENABLED, &priv->status));
533         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
534                 test_bit(STATUS_RF_KILL_HW, &priv->status));
535         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
536                 test_bit(STATUS_INIT, &priv->status));
537         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
538                 test_bit(STATUS_ALIVE, &priv->status));
539         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
540                 test_bit(STATUS_READY, &priv->status));
541         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
542                 test_bit(STATUS_TEMPERATURE, &priv->status));
543         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
544                 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
545         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
546                 test_bit(STATUS_EXIT_PENDING, &priv->status));
547         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
548                 test_bit(STATUS_STATISTICS, &priv->status));
549         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
550                 test_bit(STATUS_SCANNING, &priv->status));
551         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
552                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
553         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
554                 test_bit(STATUS_SCAN_HW, &priv->status));
555         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
556                 test_bit(STATUS_POWER_PMI, &priv->status));
557         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
558                 test_bit(STATUS_FW_ERROR, &priv->status));
559         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_MODE_PENDING:\t %d\n",
560                 test_bit(STATUS_MODE_PENDING, &priv->status));
561         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
562 }
563
564 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
565                                         char __user *user_buf,
566                                         size_t count, loff_t *ppos) {
567
568         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
569         int pos = 0;
570         int cnt = 0;
571         char *buf;
572         int bufsz = 24 * 64; /* 24 items * 64 char per item */
573         ssize_t ret;
574
575         buf = kzalloc(bufsz, GFP_KERNEL);
576         if (!buf) {
577                 IWL_ERR(priv, "Can not allocate Buffer\n");
578                 return -ENOMEM;
579         }
580
581         pos += scnprintf(buf + pos, bufsz - pos,
582                         "Interrupt Statistics Report:\n");
583
584         pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
585                 priv->isr_stats.hw);
586         pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
587                 priv->isr_stats.sw);
588         if (priv->isr_stats.sw > 0) {
589                 pos += scnprintf(buf + pos, bufsz - pos,
590                         "\tLast Restarting Code:  0x%X\n",
591                         priv->isr_stats.sw_err);
592         }
593 #ifdef CONFIG_IWLWIFI_DEBUG
594         pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
595                 priv->isr_stats.sch);
596         pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
597                 priv->isr_stats.alive);
598 #endif
599         pos += scnprintf(buf + pos, bufsz - pos,
600                 "HW RF KILL switch toggled:\t %u\n",
601                 priv->isr_stats.rfkill);
602
603         pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
604                 priv->isr_stats.ctkill);
605
606         pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
607                 priv->isr_stats.wakeup);
608
609         pos += scnprintf(buf + pos, bufsz - pos,
610                 "Rx command responses:\t\t %u\n",
611                 priv->isr_stats.rx);
612         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
613                 if (priv->isr_stats.rx_handlers[cnt] > 0)
614                         pos += scnprintf(buf + pos, bufsz - pos,
615                                 "\tRx handler[%36s]:\t\t %u\n",
616                                 get_cmd_string(cnt),
617                                 priv->isr_stats.rx_handlers[cnt]);
618         }
619
620         pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
621                 priv->isr_stats.tx);
622
623         pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
624                 priv->isr_stats.unhandled);
625
626         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
627         kfree(buf);
628         return ret;
629 }
630
631 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
632                                          const char __user *user_buf,
633                                          size_t count, loff_t *ppos)
634 {
635         struct iwl_priv *priv = file->private_data;
636         char buf[8];
637         int buf_size;
638         u32 reset_flag;
639
640         memset(buf, 0, sizeof(buf));
641         buf_size = min(count, sizeof(buf) -  1);
642         if (copy_from_user(buf, user_buf, buf_size))
643                 return -EFAULT;
644         if (sscanf(buf, "%x", &reset_flag) != 1)
645                 return -EFAULT;
646         if (reset_flag == 0)
647                 iwl_clear_isr_stats(priv);
648
649         return count;
650 }
651
652 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
653                                        size_t count, loff_t *ppos)
654 {
655         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
656         int pos = 0, i;
657         char buf[256];
658         const size_t bufsz = sizeof(buf);
659         ssize_t ret;
660
661         for (i = 0; i < AC_NUM; i++) {
662                 pos += scnprintf(buf + pos, bufsz - pos,
663                         "\tcw_min\tcw_max\taifsn\ttxop\n");
664                 pos += scnprintf(buf + pos, bufsz - pos,
665                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
666                                 priv->qos_data.def_qos_parm.ac[i].cw_min,
667                                 priv->qos_data.def_qos_parm.ac[i].cw_max,
668                                 priv->qos_data.def_qos_parm.ac[i].aifsn,
669                                 priv->qos_data.def_qos_parm.ac[i].edca_txop);
670         }
671         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
672         return ret;
673 }
674
675 #ifdef CONFIG_IWLWIFI_LEDS
676 static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
677                                   size_t count, loff_t *ppos)
678 {
679         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
680         int pos = 0;
681         char buf[256];
682         const size_t bufsz = sizeof(buf);
683         ssize_t ret;
684
685         pos += scnprintf(buf + pos, bufsz - pos,
686                          "allow blinking: %s\n",
687                          (priv->allow_blinking) ? "True" : "False");
688         if (priv->allow_blinking) {
689                 pos += scnprintf(buf + pos, bufsz - pos,
690                                  "Led blinking rate: %u\n",
691                                  priv->last_blink_rate);
692                 pos += scnprintf(buf + pos, bufsz - pos,
693                                  "Last blink time: %lu\n",
694                                  priv->last_blink_time);
695         }
696
697         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
698         return ret;
699 }
700 #endif
701
702 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
703                                 char __user *user_buf,
704                                 size_t count, loff_t *ppos)
705 {
706         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
707         struct iwl_tt_mgmt *tt = &priv->power_data.tt;
708         struct iwl_tt_restriction *restriction;
709         char buf[100];
710         int pos = 0;
711         const size_t bufsz = sizeof(buf);
712         ssize_t ret;
713
714         pos += scnprintf(buf + pos, bufsz - pos,
715                         "Thermal Throttling Mode: %s\n",
716                         (priv->power_data.adv_tt)
717                         ? "Advance" : "Legacy");
718         pos += scnprintf(buf + pos, bufsz - pos,
719                         "Thermal Throttling State: %d\n",
720                         tt->state);
721         if (priv->power_data.adv_tt) {
722                 restriction = tt->restriction + tt->state;
723                 pos += scnprintf(buf + pos, bufsz - pos,
724                                 "Tx mode: %d\n",
725                                 restriction->tx_stream);
726                 pos += scnprintf(buf + pos, bufsz - pos,
727                                 "Rx mode: %d\n",
728                                 restriction->rx_stream);
729                 pos += scnprintf(buf + pos, bufsz - pos,
730                                 "HT mode: %d\n",
731                                 restriction->is_ht);
732         }
733         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
734         return ret;
735 }
736
737 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
738                                          const char __user *user_buf,
739                                          size_t count, loff_t *ppos)
740 {
741         struct iwl_priv *priv = file->private_data;
742         char buf[8];
743         int buf_size;
744         int ht40;
745
746         memset(buf, 0, sizeof(buf));
747         buf_size = min(count, sizeof(buf) -  1);
748         if (copy_from_user(buf, user_buf, buf_size))
749                 return -EFAULT;
750         if (sscanf(buf, "%d", &ht40) != 1)
751                 return -EFAULT;
752         if (!iwl_is_associated(priv))
753                 priv->disable_ht40 = ht40 ? true : false;
754         else {
755                 IWL_ERR(priv, "Sta associated with AP - "
756                         "Change to 40MHz channel support is not allowed\n");
757                 return -EINVAL;
758         }
759
760         return count;
761 }
762
763 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
764                                          char __user *user_buf,
765                                          size_t count, loff_t *ppos)
766 {
767         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
768         char buf[100];
769         int pos = 0;
770         const size_t bufsz = sizeof(buf);
771         ssize_t ret;
772
773         pos += scnprintf(buf + pos, bufsz - pos,
774                         "11n 40MHz Mode: %s\n",
775                         priv->disable_ht40 ? "Disabled" : "Enabled");
776         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
777         return ret;
778 }
779
780 DEBUGFS_READ_WRITE_FILE_OPS(sram);
781 DEBUGFS_WRITE_FILE_OPS(log_event);
782 DEBUGFS_READ_FILE_OPS(nvm);
783 DEBUGFS_READ_FILE_OPS(stations);
784 DEBUGFS_READ_FILE_OPS(channels);
785 DEBUGFS_READ_FILE_OPS(status);
786 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
787 DEBUGFS_READ_FILE_OPS(qos);
788 #ifdef CONFIG_IWLWIFI_LEDS
789 DEBUGFS_READ_FILE_OPS(led);
790 #endif
791 DEBUGFS_READ_FILE_OPS(thermal_throttling);
792 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
793
794 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
795                                          char __user *user_buf,
796                                          size_t count, loff_t *ppos)
797 {
798         struct iwl_priv *priv = file->private_data;
799         int pos = 0, ofs = 0;
800         int cnt = 0, entry;
801         struct iwl_tx_queue *txq;
802         struct iwl_queue *q;
803         struct iwl_rx_queue *rxq = &priv->rxq;
804         char *buf;
805         int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
806                 (IWL_MAX_NUM_QUEUES * 32 * 8) + 400;
807         const u8 *ptr;
808         ssize_t ret;
809
810         buf = kzalloc(bufsz, GFP_KERNEL);
811         if (!buf) {
812                 IWL_ERR(priv, "Can not allocate buffer\n");
813                 return -ENOMEM;
814         }
815         pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
816         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
817                 txq = &priv->txq[cnt];
818                 q = &txq->q;
819                 pos += scnprintf(buf + pos, bufsz - pos,
820                                 "q[%d]: read_ptr: %u, write_ptr: %u\n",
821                                 cnt, q->read_ptr, q->write_ptr);
822         }
823         if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
824                 ptr = priv->tx_traffic;
825                 pos += scnprintf(buf + pos, bufsz - pos,
826                                 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
827                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
828                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
829                              entry++,  ofs += 16) {
830                                 pos += scnprintf(buf + pos, bufsz - pos,
831                                                 "0x%.4x ", ofs);
832                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
833                                                    buf + pos, bufsz - pos, 0);
834                                 pos += strlen(buf);
835                                 if (bufsz - pos > 0)
836                                         buf[pos++] = '\n';
837                         }
838                 }
839         }
840
841         pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
842         pos += scnprintf(buf + pos, bufsz - pos,
843                         "read: %u, write: %u\n",
844                          rxq->read, rxq->write);
845
846         if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
847                 ptr = priv->rx_traffic;
848                 pos += scnprintf(buf + pos, bufsz - pos,
849                                 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
850                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
851                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
852                              entry++,  ofs += 16) {
853                                 pos += scnprintf(buf + pos, bufsz - pos,
854                                                 "0x%.4x ", ofs);
855                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
856                                                    buf + pos, bufsz - pos, 0);
857                                 pos += strlen(buf);
858                                 if (bufsz - pos > 0)
859                                         buf[pos++] = '\n';
860                         }
861                 }
862         }
863
864         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
865         kfree(buf);
866         return ret;
867 }
868
869 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
870                                          const char __user *user_buf,
871                                          size_t count, loff_t *ppos)
872 {
873         struct iwl_priv *priv = file->private_data;
874         char buf[8];
875         int buf_size;
876         int traffic_log;
877
878         memset(buf, 0, sizeof(buf));
879         buf_size = min(count, sizeof(buf) -  1);
880         if (copy_from_user(buf, user_buf, buf_size))
881                 return -EFAULT;
882         if (sscanf(buf, "%d", &traffic_log) != 1)
883                 return -EFAULT;
884         if (traffic_log == 0)
885                 iwl_reset_traffic_log(priv);
886
887         return count;
888 }
889
890 DEBUGFS_READ_WRITE_FILE_OPS(rx_statistics);
891 DEBUGFS_READ_WRITE_FILE_OPS(tx_statistics);
892 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
893
894 /*
895  * Create the debugfs files and directories
896  *
897  */
898 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
899 {
900         struct iwl_debugfs *dbgfs;
901         struct dentry *phyd = priv->hw->wiphy->debugfsdir;
902         int ret = 0;
903
904         dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL);
905         if (!dbgfs) {
906                 ret = -ENOMEM;
907                 goto err;
908         }
909
910         priv->dbgfs = dbgfs;
911         dbgfs->name = name;
912         dbgfs->dir_drv = debugfs_create_dir(name, phyd);
913         if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)) {
914                 ret = -ENOENT;
915                 goto err;
916         }
917
918         DEBUGFS_ADD_DIR(data, dbgfs->dir_drv);
919         DEBUGFS_ADD_DIR(rf, dbgfs->dir_drv);
920         DEBUGFS_ADD_DIR(debug, dbgfs->dir_drv);
921         DEBUGFS_ADD_FILE(nvm, data);
922         DEBUGFS_ADD_FILE(sram, data);
923         DEBUGFS_ADD_FILE(log_event, data);
924         DEBUGFS_ADD_FILE(stations, data);
925         DEBUGFS_ADD_FILE(channels, data);
926         DEBUGFS_ADD_FILE(status, data);
927         DEBUGFS_ADD_FILE(interrupt, data);
928         DEBUGFS_ADD_FILE(qos, data);
929 #ifdef CONFIG_IWLWIFI_LEDS
930         DEBUGFS_ADD_FILE(led, data);
931 #endif
932         DEBUGFS_ADD_FILE(thermal_throttling, data);
933         DEBUGFS_ADD_FILE(disable_ht40, data);
934         DEBUGFS_ADD_FILE(rx_statistics, debug);
935         DEBUGFS_ADD_FILE(tx_statistics, debug);
936         DEBUGFS_ADD_FILE(traffic_log, debug);
937         DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
938         DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
939                          &priv->disable_chain_noise_cal);
940         if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
941             ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
942                 DEBUGFS_ADD_BOOL(disable_tx_power, rf,
943                                 &priv->disable_tx_power_cal);
944         return 0;
945
946 err:
947         IWL_ERR(priv, "Can't open the debugfs directory\n");
948         iwl_dbgfs_unregister(priv);
949         return ret;
950 }
951 EXPORT_SYMBOL(iwl_dbgfs_register);
952
953 /**
954  * Remove the debugfs files and directories
955  *
956  */
957 void iwl_dbgfs_unregister(struct iwl_priv *priv)
958 {
959         if (!priv->dbgfs)
960                 return;
961
962         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm);
963         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
964         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event);
965         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations);
966         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_channels);
967         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_status);
968         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_interrupt);
969         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_qos);
970 #ifdef CONFIG_IWLWIFI_LEDS
971         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_led);
972 #endif
973         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling);
974         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_disable_ht40);
975         DEBUGFS_REMOVE(priv->dbgfs->dir_data);
976         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_statistics);
977         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_statistics);
978         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_traffic_log);
979         DEBUGFS_REMOVE(priv->dbgfs->dir_debug);
980         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
981         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
982         if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
983             ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
984                 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_tx_power);
985         DEBUGFS_REMOVE(priv->dbgfs->dir_rf);
986         DEBUGFS_REMOVE(priv->dbgfs->dir_drv);
987         kfree(priv->dbgfs);
988         priv->dbgfs = NULL;
989 }
990 EXPORT_SYMBOL(iwl_dbgfs_unregister);
991
992
993