iwlwifi: Thermal Throttling debugfs function
[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[256];
130         int pos = 0;
131         const size_t bufsz = sizeof(buf);
132
133         pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n",
134                                                 priv->tx_stats[0].cnt);
135         pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n",
136                                                 priv->tx_stats[1].cnt);
137         pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n",
138                                                 priv->tx_stats[2].cnt);
139
140         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
141 }
142
143 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
144                                                 char __user *user_buf,
145                                                 size_t count, loff_t *ppos) {
146
147         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
148         char buf[256];
149         int pos = 0;
150         const size_t bufsz = sizeof(buf);
151
152         pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n",
153                                                 priv->rx_stats[0].cnt);
154         pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n",
155                                                 priv->rx_stats[1].cnt);
156         pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n",
157                                                 priv->rx_stats[2].cnt);
158
159         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
160 }
161
162 #define BYTE1_MASK 0x000000ff;
163 #define BYTE2_MASK 0x0000ffff;
164 #define BYTE3_MASK 0x00ffffff;
165 static ssize_t iwl_dbgfs_sram_read(struct file *file,
166                                         char __user *user_buf,
167                                         size_t count, loff_t *ppos)
168 {
169         u32 val;
170         char buf[1024];
171         ssize_t ret;
172         int i;
173         int pos = 0;
174         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
175         const size_t bufsz = sizeof(buf);
176
177         for (i = priv->dbgfs->sram_len; i > 0; i -= 4) {
178                 val = iwl_read_targ_mem(priv, priv->dbgfs->sram_offset + \
179                                         priv->dbgfs->sram_len - i);
180                 if (i < 4) {
181                         switch (i) {
182                         case 1:
183                                 val &= BYTE1_MASK;
184                                 break;
185                         case 2:
186                                 val &= BYTE2_MASK;
187                                 break;
188                         case 3:
189                                 val &= BYTE3_MASK;
190                                 break;
191                         }
192                 }
193                 pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
194         }
195         pos += scnprintf(buf + pos, bufsz - pos, "\n");
196
197         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
198         return ret;
199 }
200
201 static ssize_t iwl_dbgfs_sram_write(struct file *file,
202                                         const char __user *user_buf,
203                                         size_t count, loff_t *ppos)
204 {
205         struct iwl_priv *priv = file->private_data;
206         char buf[64];
207         int buf_size;
208         u32 offset, len;
209
210         memset(buf, 0, sizeof(buf));
211         buf_size = min(count, sizeof(buf) -  1);
212         if (copy_from_user(buf, user_buf, buf_size))
213                 return -EFAULT;
214
215         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
216                 priv->dbgfs->sram_offset = offset;
217                 priv->dbgfs->sram_len = len;
218         } else {
219                 priv->dbgfs->sram_offset = 0;
220                 priv->dbgfs->sram_len = 0;
221         }
222
223         return count;
224 }
225
226 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
227                                         size_t count, loff_t *ppos)
228 {
229         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
230         struct iwl_station_entry *station;
231         int max_sta = priv->hw_params.max_stations;
232         char *buf;
233         int i, j, pos = 0;
234         ssize_t ret;
235         /* Add 30 for initial string */
236         const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
237
238         buf = kmalloc(bufsz, GFP_KERNEL);
239         if (!buf)
240                 return -ENOMEM;
241
242         pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
243                         priv->num_stations);
244
245         for (i = 0; i < max_sta; i++) {
246                 station = &priv->stations[i];
247                 if (station->used) {
248                         pos += scnprintf(buf + pos, bufsz - pos,
249                                         "station %d:\ngeneral data:\n", i+1);
250                         pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n",
251                                         station->sta.sta.sta_id);
252                         pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n",
253                                         station->sta.mode);
254                         pos += scnprintf(buf + pos, bufsz - pos,
255                                         "flags: 0x%x\n",
256                                         station->sta.station_flags_msk);
257                         pos += scnprintf(buf + pos, bufsz - pos,
258                                         "ps_status: %u\n", station->ps_status);
259                         pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n");
260                         pos += scnprintf(buf + pos, bufsz - pos,
261                                         "seq_num\t\ttxq_id");
262                         pos += scnprintf(buf + pos, bufsz - pos,
263                                         "\tframe_count\twait_for_ba\t");
264                         pos += scnprintf(buf + pos, bufsz - pos,
265                                         "start_idx\tbitmap0\t");
266                         pos += scnprintf(buf + pos, bufsz - pos,
267                                         "bitmap1\trate_n_flags");
268                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
269
270                         for (j = 0; j < MAX_TID_COUNT; j++) {
271                                 pos += scnprintf(buf + pos, bufsz - pos,
272                                                 "[%d]:\t\t%u", j,
273                                                 station->tid[j].seq_number);
274                                 pos += scnprintf(buf + pos, bufsz - pos,
275                                                 "\t%u\t\t%u\t\t%u\t\t",
276                                                 station->tid[j].agg.txq_id,
277                                                 station->tid[j].agg.frame_count,
278                                                 station->tid[j].agg.wait_for_ba);
279                                 pos += scnprintf(buf + pos, bufsz - pos,
280                                                 "%u\t%llu\t%u",
281                                                 station->tid[j].agg.start_idx,
282                                                 (unsigned long long)station->tid[j].agg.bitmap,
283                                                 station->tid[j].agg.rate_n_flags);
284                                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
285                         }
286                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
287                 }
288         }
289
290         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
291         kfree(buf);
292         return ret;
293 }
294
295 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
296                                        char __user *user_buf,
297                                        size_t count,
298                                        loff_t *ppos)
299 {
300         ssize_t ret;
301         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
302         int pos = 0, ofs = 0, buf_size = 0;
303         const u8 *ptr;
304         char *buf;
305         size_t eeprom_len = priv->cfg->eeprom_size;
306         buf_size = 4 * eeprom_len + 256;
307
308         if (eeprom_len % 16) {
309                 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
310                 return -ENODATA;
311         }
312
313         /* 4 characters for byte 0xYY */
314         buf = kzalloc(buf_size, GFP_KERNEL);
315         if (!buf) {
316                 IWL_ERR(priv, "Can not allocate Buffer\n");
317                 return -ENOMEM;
318         }
319
320         ptr = priv->eeprom;
321         if (!ptr) {
322                 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
323                 return -ENOMEM;
324         }
325         pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s\n",
326                         (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
327                         ? "OTP" : "EEPROM");
328         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
329                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
330                 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
331                                    buf_size - pos, 0);
332                 pos += strlen(buf);
333                 if (buf_size - pos > 0)
334                         buf[pos++] = '\n';
335         }
336
337         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
338         kfree(buf);
339         return ret;
340 }
341
342 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
343                                         const char __user *user_buf,
344                                         size_t count, loff_t *ppos)
345 {
346         struct iwl_priv *priv = file->private_data;
347         u32 event_log_flag;
348         char buf[8];
349         int buf_size;
350
351         memset(buf, 0, sizeof(buf));
352         buf_size = min(count, sizeof(buf) -  1);
353         if (copy_from_user(buf, user_buf, buf_size))
354                 return -EFAULT;
355         if (sscanf(buf, "%d", &event_log_flag) != 1)
356                 return -EFAULT;
357         if (event_log_flag == 1)
358                 iwl_dump_nic_event_log(priv);
359
360         return count;
361 }
362
363
364
365 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
366                                        size_t count, loff_t *ppos)
367 {
368         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
369         struct ieee80211_channel *channels = NULL;
370         const struct ieee80211_supported_band *supp_band = NULL;
371         int pos = 0, i, bufsz = PAGE_SIZE;
372         char *buf;
373         ssize_t ret;
374
375         if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
376                 return -EAGAIN;
377
378         buf = kzalloc(bufsz, GFP_KERNEL);
379         if (!buf) {
380                 IWL_ERR(priv, "Can not allocate Buffer\n");
381                 return -ENOMEM;
382         }
383
384         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
385         if (supp_band) {
386                 channels = supp_band->channels;
387
388                 pos += scnprintf(buf + pos, bufsz - pos,
389                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
390                                 supp_band->n_channels);
391
392                 for (i = 0; i < supp_band->n_channels; i++)
393                         pos += scnprintf(buf + pos, bufsz - pos,
394                                         "%d: %ddBm: BSS%s%s, %s.\n",
395                                         ieee80211_frequency_to_channel(
396                                         channels[i].center_freq),
397                                         channels[i].max_power,
398                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
399                                         " (IEEE 802.11h required)" : "",
400                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
401                                         || (channels[i].flags &
402                                         IEEE80211_CHAN_RADAR)) ? "" :
403                                         ", IBSS",
404                                         channels[i].flags &
405                                         IEEE80211_CHAN_PASSIVE_SCAN ?
406                                         "passive only" : "active/passive");
407         }
408         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
409         if (supp_band) {
410                 channels = supp_band->channels;
411
412                 pos += scnprintf(buf + pos, bufsz - pos,
413                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
414                                 supp_band->n_channels);
415
416                 for (i = 0; i < supp_band->n_channels; i++)
417                         pos += scnprintf(buf + pos, bufsz - pos,
418                                         "%d: %ddBm: BSS%s%s, %s.\n",
419                                         ieee80211_frequency_to_channel(
420                                         channels[i].center_freq),
421                                         channels[i].max_power,
422                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
423                                         " (IEEE 802.11h required)" : "",
424                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
425                                         || (channels[i].flags &
426                                         IEEE80211_CHAN_RADAR)) ? "" :
427                                         ", IBSS",
428                                         channels[i].flags &
429                                         IEEE80211_CHAN_PASSIVE_SCAN ?
430                                         "passive only" : "active/passive");
431         }
432         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
433         kfree(buf);
434         return ret;
435 }
436
437 static ssize_t iwl_dbgfs_status_read(struct file *file,
438                                                 char __user *user_buf,
439                                                 size_t count, loff_t *ppos) {
440
441         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
442         char buf[512];
443         int pos = 0;
444         const size_t bufsz = sizeof(buf);
445
446         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
447                 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
448         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_SYNC_ACTIVE: %d\n",
449                 test_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status));
450         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
451                 test_bit(STATUS_INT_ENABLED, &priv->status));
452         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
453                 test_bit(STATUS_RF_KILL_HW, &priv->status));
454         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
455                 test_bit(STATUS_INIT, &priv->status));
456         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
457                 test_bit(STATUS_ALIVE, &priv->status));
458         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
459                 test_bit(STATUS_READY, &priv->status));
460         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
461                 test_bit(STATUS_TEMPERATURE, &priv->status));
462         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
463                 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
464         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
465                 test_bit(STATUS_EXIT_PENDING, &priv->status));
466         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
467                 test_bit(STATUS_STATISTICS, &priv->status));
468         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
469                 test_bit(STATUS_SCANNING, &priv->status));
470         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
471                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
472         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
473                 test_bit(STATUS_SCAN_HW, &priv->status));
474         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
475                 test_bit(STATUS_POWER_PMI, &priv->status));
476         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
477                 test_bit(STATUS_FW_ERROR, &priv->status));
478         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_MODE_PENDING:\t %d\n",
479                 test_bit(STATUS_MODE_PENDING, &priv->status));
480         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
481 }
482
483 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
484                                         char __user *user_buf,
485                                         size_t count, loff_t *ppos) {
486
487         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
488         int pos = 0;
489         int cnt = 0;
490         char *buf;
491         int bufsz = 24 * 64; /* 24 items * 64 char per item */
492         ssize_t ret;
493
494         buf = kzalloc(bufsz, GFP_KERNEL);
495         if (!buf) {
496                 IWL_ERR(priv, "Can not allocate Buffer\n");
497                 return -ENOMEM;
498         }
499
500         pos += scnprintf(buf + pos, bufsz - pos,
501                         "Interrupt Statistics Report:\n");
502
503         pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
504                 priv->isr_stats.hw);
505         pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
506                 priv->isr_stats.sw);
507         if (priv->isr_stats.sw > 0) {
508                 pos += scnprintf(buf + pos, bufsz - pos,
509                         "\tLast Restarting Code:  0x%X\n",
510                         priv->isr_stats.sw_err);
511         }
512 #ifdef CONFIG_IWLWIFI_DEBUG
513         pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
514                 priv->isr_stats.sch);
515         pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
516                 priv->isr_stats.alive);
517 #endif
518         pos += scnprintf(buf + pos, bufsz - pos,
519                 "HW RF KILL switch toggled:\t %u\n",
520                 priv->isr_stats.rfkill);
521
522         pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
523                 priv->isr_stats.ctkill);
524
525         pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
526                 priv->isr_stats.wakeup);
527
528         pos += scnprintf(buf + pos, bufsz - pos,
529                 "Rx command responses:\t\t %u\n",
530                 priv->isr_stats.rx);
531         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
532                 if (priv->isr_stats.rx_handlers[cnt] > 0)
533                         pos += scnprintf(buf + pos, bufsz - pos,
534                                 "\tRx handler[%36s]:\t\t %u\n",
535                                 get_cmd_string(cnt),
536                                 priv->isr_stats.rx_handlers[cnt]);
537         }
538
539         pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
540                 priv->isr_stats.tx);
541
542         pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
543                 priv->isr_stats.unhandled);
544
545         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
546         kfree(buf);
547         return ret;
548 }
549
550 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
551                                          const char __user *user_buf,
552                                          size_t count, loff_t *ppos)
553 {
554         struct iwl_priv *priv = file->private_data;
555         char buf[8];
556         int buf_size;
557         u32 reset_flag;
558
559         memset(buf, 0, sizeof(buf));
560         buf_size = min(count, sizeof(buf) -  1);
561         if (copy_from_user(buf, user_buf, buf_size))
562                 return -EFAULT;
563         if (sscanf(buf, "%x", &reset_flag) != 1)
564                 return -EFAULT;
565         if (reset_flag == 0)
566                 iwl_clear_isr_stats(priv);
567
568         return count;
569 }
570
571 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
572                                        size_t count, loff_t *ppos)
573 {
574         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
575         int pos = 0, i;
576         char buf[256];
577         const size_t bufsz = sizeof(buf);
578         ssize_t ret;
579
580         for (i = 0; i < AC_NUM; i++) {
581                 pos += scnprintf(buf + pos, bufsz - pos,
582                         "\tcw_min\tcw_max\taifsn\ttxop\n");
583                 pos += scnprintf(buf + pos, bufsz - pos,
584                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
585                                 priv->qos_data.def_qos_parm.ac[i].cw_min,
586                                 priv->qos_data.def_qos_parm.ac[i].cw_max,
587                                 priv->qos_data.def_qos_parm.ac[i].aifsn,
588                                 priv->qos_data.def_qos_parm.ac[i].edca_txop);
589         }
590         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
591         return ret;
592 }
593
594 #ifdef CONFIG_IWLWIFI_LEDS
595 static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
596                                   size_t count, loff_t *ppos)
597 {
598         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
599         int pos = 0;
600         char buf[256];
601         const size_t bufsz = sizeof(buf);
602         ssize_t ret;
603
604         pos += scnprintf(buf + pos, bufsz - pos,
605                          "allow blinking: %s\n",
606                          (priv->allow_blinking) ? "True" : "False");
607         if (priv->allow_blinking) {
608                 pos += scnprintf(buf + pos, bufsz - pos,
609                                  "Led blinking rate: %u\n",
610                                  priv->last_blink_rate);
611                 pos += scnprintf(buf + pos, bufsz - pos,
612                                  "Last blink time: %lu\n",
613                                  priv->last_blink_time);
614         }
615
616         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
617         return ret;
618 }
619 #endif
620
621 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
622                                 char __user *user_buf,
623                                 size_t count, loff_t *ppos)
624 {
625         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
626         struct iwl_tt_mgmt *tt = &priv->power_data.tt;
627         struct iwl_tt_restriction *restriction;
628         char buf[100];
629         int pos = 0;
630         const size_t bufsz = sizeof(buf);
631         ssize_t ret;
632
633         pos += scnprintf(buf + pos, bufsz - pos,
634                         "Thermal Throttling Mode: %s\n",
635                         (priv->power_data.adv_tt)
636                         ? "Advance" : "Legacy");
637         pos += scnprintf(buf + pos, bufsz - pos,
638                         "Thermal Throttling State: %d\n",
639                         tt->state);
640         if (priv->power_data.adv_tt) {
641                 restriction = tt->restriction + tt->state;
642                 pos += scnprintf(buf + pos, bufsz - pos,
643                                 "Tx mode: %d\n",
644                                 restriction->tx_stream);
645                 pos += scnprintf(buf + pos, bufsz - pos,
646                                 "Rx mode: %d\n",
647                                 restriction->rx_stream);
648                 pos += scnprintf(buf + pos, bufsz - pos,
649                                 "HT mode: %d\n",
650                                 restriction->is_ht);
651         }
652         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
653         return ret;
654 }
655
656 DEBUGFS_READ_WRITE_FILE_OPS(sram);
657 DEBUGFS_WRITE_FILE_OPS(log_event);
658 DEBUGFS_READ_FILE_OPS(nvm);
659 DEBUGFS_READ_FILE_OPS(stations);
660 DEBUGFS_READ_FILE_OPS(rx_statistics);
661 DEBUGFS_READ_FILE_OPS(tx_statistics);
662 DEBUGFS_READ_FILE_OPS(channels);
663 DEBUGFS_READ_FILE_OPS(status);
664 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
665 DEBUGFS_READ_FILE_OPS(qos);
666 #ifdef CONFIG_IWLWIFI_LEDS
667 DEBUGFS_READ_FILE_OPS(led);
668 #endif
669 DEBUGFS_READ_FILE_OPS(thermal_throttling);
670
671 /*
672  * Create the debugfs files and directories
673  *
674  */
675 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
676 {
677         struct iwl_debugfs *dbgfs;
678         struct dentry *phyd = priv->hw->wiphy->debugfsdir;
679         int ret = 0;
680
681         dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL);
682         if (!dbgfs) {
683                 ret = -ENOMEM;
684                 goto err;
685         }
686
687         priv->dbgfs = dbgfs;
688         dbgfs->name = name;
689         dbgfs->dir_drv = debugfs_create_dir(name, phyd);
690         if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)) {
691                 ret = -ENOENT;
692                 goto err;
693         }
694
695         DEBUGFS_ADD_DIR(data, dbgfs->dir_drv);
696         DEBUGFS_ADD_DIR(rf, dbgfs->dir_drv);
697         DEBUGFS_ADD_FILE(nvm, data);
698         DEBUGFS_ADD_FILE(sram, data);
699         DEBUGFS_ADD_FILE(log_event, data);
700         DEBUGFS_ADD_FILE(stations, data);
701         DEBUGFS_ADD_FILE(rx_statistics, data);
702         DEBUGFS_ADD_FILE(tx_statistics, data);
703         DEBUGFS_ADD_FILE(channels, data);
704         DEBUGFS_ADD_FILE(status, data);
705         DEBUGFS_ADD_FILE(interrupt, data);
706         DEBUGFS_ADD_FILE(qos, data);
707 #ifdef CONFIG_IWLWIFI_LEDS
708         DEBUGFS_ADD_FILE(led, data);
709 #endif
710         DEBUGFS_ADD_FILE(thermal_throttling, data);
711         DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
712         DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
713                          &priv->disable_chain_noise_cal);
714         if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
715             ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
716                 DEBUGFS_ADD_BOOL(disable_tx_power, rf,
717                                 &priv->disable_tx_power_cal);
718         return 0;
719
720 err:
721         IWL_ERR(priv, "Can't open the debugfs directory\n");
722         iwl_dbgfs_unregister(priv);
723         return ret;
724 }
725 EXPORT_SYMBOL(iwl_dbgfs_register);
726
727 /**
728  * Remove the debugfs files and directories
729  *
730  */
731 void iwl_dbgfs_unregister(struct iwl_priv *priv)
732 {
733         if (!priv->dbgfs)
734                 return;
735
736         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm);
737         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_rx_statistics);
738         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_tx_statistics);
739         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
740         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event);
741         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations);
742         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_channels);
743         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_status);
744         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_interrupt);
745         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_qos);
746 #ifdef CONFIG_IWLWIFI_LEDS
747         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_led);
748 #endif
749         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling);
750         DEBUGFS_REMOVE(priv->dbgfs->dir_data);
751         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
752         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
753         if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
754             ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
755                 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_tx_power);
756         DEBUGFS_REMOVE(priv->dbgfs->dir_rf);
757         DEBUGFS_REMOVE(priv->dbgfs->dir_drv);
758         kfree(priv->dbgfs);
759         priv->dbgfs = NULL;
760 }
761 EXPORT_SYMBOL(iwl_dbgfs_unregister);
762
763
764