SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 622 DEBUGFS_WRITE_FILE_OPS(log_event);
 623 DEBUGFS_READ_FILE_OPS(nvm);
 624 DEBUGFS_READ_FILE_OPS(stations);
 625 DEBUGFS_READ_FILE_OPS(rx_statistics);
 626 DEBUGFS_READ_FILE_OPS(tx_statistics);
 627 DEBUGFS_READ_FILE_OPS(channels);
 628 DEBUGFS_READ_FILE_OPS(status);
 629 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 630 DEBUGFS_READ_FILE_OPS(qos);
 631 #ifdef CONFIG_IWLWIFI_LEDS
 632 DEBUGFS_READ_FILE_OPS(led);
 633 #endif
 634
 635 /*
 636  * Create the debugfs files and directories
 637  *
 638  */
 639 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 640 {
 641         struct iwl_debugfs *dbgfs;
 642         struct dentry *phyd = priv->hw->wiphy->debugfsdir;
 643         int ret = 0;
 644
 645         dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL);
 646         if (!dbgfs) {
 647                 ret = -ENOMEM;
 648                 goto err;
 649         }
 650
 651         priv->dbgfs = dbgfs;
 652         dbgfs->name = name;
 653         dbgfs->dir_drv = debugfs_create_dir(name, phyd);
 654         if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)) {
 655                 ret = -ENOENT;
 656                 goto err;
 657         }
 658
 659         DEBUGFS_ADD_DIR(data, dbgfs->dir_drv);
 660         DEBUGFS_ADD_DIR(rf, dbgfs->dir_drv);
 661         DEBUGFS_ADD_FILE(nvm, data);
 662         DEBUGFS_ADD_FILE(sram, data);
 663         DEBUGFS_ADD_FILE(log_event, data);
 664         DEBUGFS_ADD_FILE(stations, data);
 665         DEBUGFS_ADD_FILE(rx_statistics, data);
 666         DEBUGFS_ADD_FILE(tx_statistics, data);
 667         DEBUGFS_ADD_FILE(channels, data);
 668         DEBUGFS_ADD_FILE(status, data);
 669         DEBUGFS_ADD_FILE(interrupt, data);
 670         DEBUGFS_ADD_FILE(qos, data);
 671 #ifdef CONFIG_IWLWIFI_LEDS
 672         DEBUGFS_ADD_FILE(led, data);
 673 #endif
 674         DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
 675         DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
 676                          &priv->disable_chain_noise_cal);
 677         if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
 678             ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
 679                 DEBUGFS_ADD_BOOL(disable_tx_power, rf,
 680                                 &priv->disable_tx_power_cal);
 681         return 0;
 682
 683 err:
 684         IWL_ERR(priv, "Can't open the debugfs directory\n");
 685         iwl_dbgfs_unregister(priv);
 686         return ret;
 687 }
 688 EXPORT_SYMBOL(iwl_dbgfs_register);
 689
 690 /**
 691  * Remove the debugfs files and directories
 692  *
 693  */
 694 void iwl_dbgfs_unregister(struct iwl_priv *priv)
 695 {
 696         if (!priv->dbgfs)
 697                 return;
 698
 699         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm);
 700         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_rx_statistics);
 701         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_tx_statistics);
 702         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
 703         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event);
 704         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations);
 705         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_channels);
 706         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_status);
 707         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_interrupt);
 708         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_qos);
 709 #ifdef CONFIG_IWLWIFI_LEDS
 710         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_led);
 711 #endif
 712         DEBUGFS_REMOVE(priv->dbgfs->dir_data);
 713         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
 714         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
 715         if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
 716             ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
 717                 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_tx_power);
 718         DEBUGFS_REMOVE(priv->dbgfs->dir_rf);
 719         DEBUGFS_REMOVE(priv->dbgfs->dir_drv);
 720         kfree(priv->dbgfs);
 721         priv->dbgfs = NULL;
 722 }
 723 EXPORT_SYMBOL(iwl_dbgfs_unregister);
 724
 725
 726