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 #include "iwl-calib.h"
  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         u16 eeprom_ver;
 387         size_t eeprom_len = priv->cfg->eeprom_size;
 388         buf_size = 4 * eeprom_len + 256;
 389
 390         if (eeprom_len % 16) {
 391                 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
 392                 return -ENODATA;
 393         }
 394
 395         ptr = priv->eeprom;
 396         if (!ptr) {
 397                 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
 398                 return -ENOMEM;
 399         }
 400
 401         /* 4 characters for byte 0xYY */
 402         buf = kzalloc(buf_size, GFP_KERNEL);
 403         if (!buf) {
 404                 IWL_ERR(priv, "Can not allocate Buffer\n");
 405                 return -ENOMEM;
 406         }
 407         eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
 408         pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
 409                         "version: 0x%x\n",
 410                         (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
 411                          ? "OTP" : "EEPROM", eeprom_ver);
 412         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
 413                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
 414                 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
 415                                    buf_size - pos, 0);
 416                 pos += strlen(buf + pos);
 417                 if (buf_size - pos > 0)
 418                         buf[pos++] = '\n';
 419         }
 420
 421         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 422         kfree(buf);
 423         return ret;
 424 }
 425
 426 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
 427                                         const char __user *user_buf,
 428                                         size_t count, loff_t *ppos)
 429 {
 430         struct iwl_priv *priv = file->private_data;
 431         u32 event_log_flag;
 432         char buf[8];
 433         int buf_size;
 434
 435         memset(buf, 0, sizeof(buf));
 436         buf_size = min(count, sizeof(buf) -  1);
 437         if (copy_from_user(buf, user_buf, buf_size))
 438                 return -EFAULT;
 439         if (sscanf(buf, "%d", &event_log_flag) != 1)
 440                 return -EFAULT;
 441         if (event_log_flag == 1)
 442                 priv->cfg->ops->lib->dump_nic_event_log(priv);
 443
 444         return count;
 445 }
 446
 447
 448
 449 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 450                                        size_t count, loff_t *ppos)
 451 {
 452         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
 453         struct ieee80211_channel *channels = NULL;
 454         const struct ieee80211_supported_band *supp_band = NULL;
 455         int pos = 0, i, bufsz = PAGE_SIZE;
 456         char *buf;
 457         ssize_t ret;
 458
 459         if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
 460                 return -EAGAIN;
 461
 462         buf = kzalloc(bufsz, GFP_KERNEL);
 463         if (!buf) {
 464                 IWL_ERR(priv, "Can not allocate Buffer\n");
 465                 return -ENOMEM;
 466         }
 467
 468         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
 469         if (supp_band) {
 470                 channels = supp_band->channels;
 471
 472                 pos += scnprintf(buf + pos, bufsz - pos,
 473                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
 474                                 supp_band->n_channels);
 475
 476                 for (i = 0; i < supp_band->n_channels; i++)
 477                         pos += scnprintf(buf + pos, bufsz - pos,
 478                                         "%d: %ddBm: BSS%s%s, %s.\n",
 479                                         ieee80211_frequency_to_channel(
 480                                         channels[i].center_freq),
 481                                         channels[i].max_power,
 482                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 483                                         " (IEEE 802.11h required)" : "",
 484                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 485                                         || (channels[i].flags &
 486                                         IEEE80211_CHAN_RADAR)) ? "" :
 487                                         ", IBSS",
 488                                         channels[i].flags &
 489                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 490                                         "passive only" : "active/passive");
 491         }
 492         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
 493         if (supp_band) {
 494                 channels = supp_band->channels;
 495
 496                 pos += scnprintf(buf + pos, bufsz - pos,
 497                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
 498                                 supp_band->n_channels);
 499
 500                 for (i = 0; i < supp_band->n_channels; i++)
 501                         pos += scnprintf(buf + pos, bufsz - pos,
 502                                         "%d: %ddBm: BSS%s%s, %s.\n",
 503                                         ieee80211_frequency_to_channel(
 504                                         channels[i].center_freq),
 505                                         channels[i].max_power,
 506                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 507                                         " (IEEE 802.11h required)" : "",
 508                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 509                                         || (channels[i].flags &
 510                                         IEEE80211_CHAN_RADAR)) ? "" :
 511                                         ", IBSS",
 512                                         channels[i].flags &
 513                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 514                                         "passive only" : "active/passive");
 515         }
 516         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 517         kfree(buf);
 518         return ret;
 519 }
 520
 521 static ssize_t iwl_dbgfs_status_read(struct file *file,
 522                                                 char __user *user_buf,
 523                                                 size_t count, loff_t *ppos) {
 524
 525         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
 526         char buf[512];
 527         int pos = 0;
 528         const size_t bufsz = sizeof(buf);
 529
 530         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
 531                 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
 532         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_SYNC_ACTIVE: %d\n",
 533                 test_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status));
 534         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
 535                 test_bit(STATUS_INT_ENABLED, &priv->status));
 536         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 537                 test_bit(STATUS_RF_KILL_HW, &priv->status));
 538         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 539                 test_bit(STATUS_CT_KILL, &priv->status));
 540         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
 541                 test_bit(STATUS_INIT, &priv->status));
 542         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 543                 test_bit(STATUS_ALIVE, &priv->status));
 544         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 545                 test_bit(STATUS_READY, &priv->status));
 546         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
 547                 test_bit(STATUS_TEMPERATURE, &priv->status));
 548         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
 549                 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
 550         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 551                 test_bit(STATUS_EXIT_PENDING, &priv->status));
 552         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 553                 test_bit(STATUS_STATISTICS, &priv->status));
 554         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 555                 test_bit(STATUS_SCANNING, &priv->status));
 556         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 557                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
 558         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 559                 test_bit(STATUS_SCAN_HW, &priv->status));
 560         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 561                 test_bit(STATUS_POWER_PMI, &priv->status));
 562         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 563                 test_bit(STATUS_FW_ERROR, &priv->status));
 564         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_MODE_PENDING:\t %d\n",
 565                 test_bit(STATUS_MODE_PENDING, &priv->status));
 566         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 567 }
 568
 569 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
 570                                         char __user *user_buf,
 571                                         size_t count, loff_t *ppos) {
 572
 573         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
 574         int pos = 0;
 575         int cnt = 0;
 576         char *buf;
 577         int bufsz = 24 * 64; /* 24 items * 64 char per item */
 578         ssize_t ret;
 579
 580         buf = kzalloc(bufsz, GFP_KERNEL);
 581         if (!buf) {
 582                 IWL_ERR(priv, "Can not allocate Buffer\n");
 583                 return -ENOMEM;
 584         }
 585
 586         pos += scnprintf(buf + pos, bufsz - pos,
 587                         "Interrupt Statistics Report:\n");
 588
 589         pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
 590                 priv->isr_stats.hw);
 591         pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
 592                 priv->isr_stats.sw);
 593         if (priv->isr_stats.sw > 0) {
 594                 pos += scnprintf(buf + pos, bufsz - pos,
 595                         "\tLast Restarting Code:  0x%X\n",
 596                         priv->isr_stats.sw_err);
 597         }
 598 #ifdef CONFIG_IWLWIFI_DEBUG
 599         pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
 600                 priv->isr_stats.sch);
 601         pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
 602                 priv->isr_stats.alive);
 603 #endif
 604         pos += scnprintf(buf + pos, bufsz - pos,
 605                 "HW RF KILL switch toggled:\t %u\n",
 606                 priv->isr_stats.rfkill);
 607
 608         pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
 609                 priv->isr_stats.ctkill);
 610
 611         pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
 612                 priv->isr_stats.wakeup);
 613
 614         pos += scnprintf(buf + pos, bufsz - pos,
 615                 "Rx command responses:\t\t %u\n",
 616                 priv->isr_stats.rx);
 617         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 618                 if (priv->isr_stats.rx_handlers[cnt] > 0)
 619                         pos += scnprintf(buf + pos, bufsz - pos,
 620                                 "\tRx handler[%36s]:\t\t %u\n",
 621                                 get_cmd_string(cnt),
 622                                 priv->isr_stats.rx_handlers[cnt]);
 623         }
 624
 625         pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
 626                 priv->isr_stats.tx);
 627
 628         pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
 629                 priv->isr_stats.unhandled);
 630
 631         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 632         kfree(buf);
 633         return ret;
 634 }
 635
 636 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
 637                                          const char __user *user_buf,
 638                                          size_t count, loff_t *ppos)
 639 {
 640         struct iwl_priv *priv = file->private_data;
 641         char buf[8];
 642         int buf_size;
 643         u32 reset_flag;
 644
 645         memset(buf, 0, sizeof(buf));
 646         buf_size = min(count, sizeof(buf) -  1);
 647         if (copy_from_user(buf, user_buf, buf_size))
 648                 return -EFAULT;
 649         if (sscanf(buf, "%x", &reset_flag) != 1)
 650                 return -EFAULT;
 651         if (reset_flag == 0)
 652                 iwl_clear_isr_stats(priv);
 653
 654         return count;
 655 }
 656
 657 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 658                                        size_t count, loff_t *ppos)
 659 {
 660         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
 661         int pos = 0, i;
 662         char buf[256];
 663         const size_t bufsz = sizeof(buf);
 664         ssize_t ret;
 665
 666         for (i = 0; i < AC_NUM; i++) {
 667                 pos += scnprintf(buf + pos, bufsz - pos,
 668                         "\tcw_min\tcw_max\taifsn\ttxop\n");
 669                 pos += scnprintf(buf + pos, bufsz - pos,
 670                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
 671                                 priv->qos_data.def_qos_parm.ac[i].cw_min,
 672                                 priv->qos_data.def_qos_parm.ac[i].cw_max,
 673                                 priv->qos_data.def_qos_parm.ac[i].aifsn,
 674                                 priv->qos_data.def_qos_parm.ac[i].edca_txop);
 675         }
 676         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 677         return ret;
 678 }
 679
 680 static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
 681                                   size_t count, loff_t *ppos)
 682 {
 683         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
 684         int pos = 0;
 685         char buf[256];
 686         const size_t bufsz = sizeof(buf);
 687         ssize_t ret;
 688
 689         pos += scnprintf(buf + pos, bufsz - pos,
 690                          "allow blinking: %s\n",
 691                          (priv->allow_blinking) ? "True" : "False");
 692         if (priv->allow_blinking) {
 693                 pos += scnprintf(buf + pos, bufsz - pos,
 694                                  "Led blinking rate: %u\n",
 695                                  priv->last_blink_rate);
 696                 pos += scnprintf(buf + pos, bufsz - pos,
 697                                  "Last blink time: %lu\n",
 698                                  priv->last_blink_time);
 699         }
 700
 701         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 702         return ret;
 703 }
 704
 705 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 706                                 char __user *user_buf,
 707                                 size_t count, loff_t *ppos)
 708 {
 709         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
 710         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 711         struct iwl_tt_restriction *restriction;
 712         char buf[100];
 713         int pos = 0;
 714         const size_t bufsz = sizeof(buf);
 715         ssize_t ret;
 716
 717         pos += scnprintf(buf + pos, bufsz - pos,
 718                         "Thermal Throttling Mode: %s\n",
 719                         tt->advanced_tt ? "Advance" : "Legacy");
 720         pos += scnprintf(buf + pos, bufsz - pos,
 721                         "Thermal Throttling State: %d\n",
 722                         tt->state);
 723         if (tt->advanced_tt) {
 724                 restriction = tt->restriction + tt->state;
 725                 pos += scnprintf(buf + pos, bufsz - pos,
 726                                 "Tx mode: %d\n",
 727                                 restriction->tx_stream);
 728                 pos += scnprintf(buf + pos, bufsz - pos,
 729                                 "Rx mode: %d\n",
 730                                 restriction->rx_stream);
 731                 pos += scnprintf(buf + pos, bufsz - pos,
 732                                 "HT mode: %d\n",
 733                                 restriction->is_ht);
 734         }
 735         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 736         return ret;
 737 }
 738
 739 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 740                                          const char __user *user_buf,
 741                                          size_t count, loff_t *ppos)
 742 {
 743         struct iwl_priv *priv = file->private_data;
 744         char buf[8];
 745         int buf_size;
 746         int ht40;
 747
 748         memset(buf, 0, sizeof(buf));
 749         buf_size = min(count, sizeof(buf) -  1);
 750         if (copy_from_user(buf, user_buf, buf_size))
 751                 return -EFAULT;
 752         if (sscanf(buf, "%d", &ht40) != 1)
 753                 return -EFAULT;
 754         if (!iwl_is_associated(priv))
 755                 priv->disable_ht40 = ht40 ? true : false;
 756         else {
 757                 IWL_ERR(priv, "Sta associated with AP - "
 758                         "Change to 40MHz channel support is not allowed\n");
 759                 return -EINVAL;
 760         }
 761
 762         return count;
 763 }
 764
 765 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 766                                          char __user *user_buf,
 767                                          size_t count, loff_t *ppos)
 768 {
 769         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
 770         char buf[100];
 771         int pos = 0;
 772         const size_t bufsz = sizeof(buf);
 773         ssize_t ret;
 774
 775         pos += scnprintf(buf + pos, bufsz - pos,
 776                         "11n 40MHz Mode: %s\n",
 777                         priv->disable_ht40 ? "Disabled" : "Enabled");
 778         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 779         return ret;
 780 }
 781
 782 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 783                                                     const char __user *user_buf,
 784                                                     size_t count, loff_t *ppos)
 785 {
 786         struct iwl_priv *priv = file->private_data;
 787         char buf[8];
 788         int buf_size;
 789         int value;
 790
 791         memset(buf, 0, sizeof(buf));
 792         buf_size = min(count, sizeof(buf) -  1);
 793         if (copy_from_user(buf, user_buf, buf_size))
 794                 return -EFAULT;
 795
 796         if (sscanf(buf, "%d", &value) != 1)
 797                 return -EINVAL;
 798
 799         /*
 800          * Our users expect 0 to be "CAM", but 0 isn't actually
 801          * valid here. However, let's not confuse them and present
 802          * IWL_POWER_INDEX_1 as "1", not "0".
 803          */
 804         if (value > 0)
 805                 value -= 1;
 806
 807         if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 808                 return -EINVAL;
 809
 810         priv->power_data.debug_sleep_level_override = value;
 811
 812         iwl_power_update_mode(priv, false);
 813
 814         return count;
 815 }
 816
 817 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 818                                                    char __user *user_buf,
 819                                                    size_t count, loff_t *ppos)
 820 {
 821         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
 822         char buf[10];
 823         int pos, value;
 824         const size_t bufsz = sizeof(buf);
 825
 826         /* see the write function */
 827         value = priv->power_data.debug_sleep_level_override;
 828         if (value >= 0)
 829                 value += 1;
 830
 831         pos = scnprintf(buf, bufsz, "%d\n", value);
 832         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 833 }
 834
 835 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 836                                                     char __user *user_buf,
 837                                                     size_t count, loff_t *ppos)
 838 {
 839         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
 840         char buf[200];
 841         int pos = 0, i;
 842         const size_t bufsz = sizeof(buf);
 843         struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 844
 845         pos += scnprintf(buf + pos, bufsz - pos,
 846                          "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 847         pos += scnprintf(buf + pos, bufsz - pos,
 848                          "RX/TX timeout: %d/%d usec\n",
 849                          le32_to_cpu(cmd->rx_data_timeout),
 850                          le32_to_cpu(cmd->tx_data_timeout));
 851         for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 852                 pos += scnprintf(buf + pos, bufsz - pos,
 853                                  "sleep_interval[%d]: %d\n", i,
 854                                  le32_to_cpu(cmd->sleep_interval[i]));
 855
 856         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 857 }
 858
 859 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 860 DEBUGFS_WRITE_FILE_OPS(log_event);
 861 DEBUGFS_READ_FILE_OPS(nvm);
 862 DEBUGFS_READ_FILE_OPS(stations);
 863 DEBUGFS_READ_FILE_OPS(channels);
 864 DEBUGFS_READ_FILE_OPS(status);
 865 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 866 DEBUGFS_READ_FILE_OPS(qos);
 867 DEBUGFS_READ_FILE_OPS(led);
 868 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 869 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 870 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 871 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 872
 873 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
 874                                          char __user *user_buf,
 875                                          size_t count, loff_t *ppos)
 876 {
 877         struct iwl_priv *priv = file->private_data;
 878         int pos = 0, ofs = 0;
 879         int cnt = 0, entry;
 880         struct iwl_tx_queue *txq;
 881         struct iwl_queue *q;
 882         struct iwl_rx_queue *rxq = &priv->rxq;
 883         char *buf;
 884         int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
 885                 (IWL_MAX_NUM_QUEUES * 32 * 8) + 400;
 886         const u8 *ptr;
 887         ssize_t ret;
 888
 889         buf = kzalloc(bufsz, GFP_KERNEL);
 890         if (!buf) {
 891                 IWL_ERR(priv, "Can not allocate buffer\n");
 892                 return -ENOMEM;
 893         }
 894         pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
 895         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 896                 txq = &priv->txq[cnt];
 897                 q = &txq->q;
 898                 pos += scnprintf(buf + pos, bufsz - pos,
 899                                 "q[%d]: read_ptr: %u, write_ptr: %u\n",
 900                                 cnt, q->read_ptr, q->write_ptr);
 901         }
 902         if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
 903                 ptr = priv->tx_traffic;
 904                 pos += scnprintf(buf + pos, bufsz - pos,
 905                                 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
 906                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 907                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 908                              entry++,  ofs += 16) {
 909                                 pos += scnprintf(buf + pos, bufsz - pos,
 910                                                 "0x%.4x ", ofs);
 911                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 912                                                    buf + pos, bufsz - pos, 0);
 913                                 pos += strlen(buf + pos);
 914                                 if (bufsz - pos > 0)
 915                                         buf[pos++] = '\n';
 916                         }
 917                 }
 918         }
 919
 920         pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
 921         pos += scnprintf(buf + pos, bufsz - pos,
 922                         "read: %u, write: %u\n",
 923                          rxq->read, rxq->write);
 924
 925         if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
 926                 ptr = priv->rx_traffic;
 927                 pos += scnprintf(buf + pos, bufsz - pos,
 928                                 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
 929                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 930                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 931                              entry++,  ofs += 16) {
 932                                 pos += scnprintf(buf + pos, bufsz - pos,
 933                                                 "0x%.4x ", ofs);
 934                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 935                                                    buf + pos, bufsz - pos, 0);
 936                                 pos += strlen(buf + pos);
 937                                 if (bufsz - pos > 0)
 938                                         buf[pos++] = '\n';
 939                         }
 940                 }
 941         }
 942
 943         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 944         kfree(buf);
 945         return ret;
 946 }
 947
 948 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
 949                                          const char __user *user_buf,
 950                                          size_t count, loff_t *ppos)
 951 {
 952         struct iwl_priv *priv = file->private_data;
 953         char buf[8];
 954         int buf_size;
 955         int traffic_log;
 956
 957         memset(buf, 0, sizeof(buf));
 958         buf_size = min(count, sizeof(buf) -  1);
 959         if (copy_from_user(buf, user_buf, buf_size))
 960                 return -EFAULT;
 961         if (sscanf(buf, "%d", &traffic_log) != 1)
 962                 return -EFAULT;
 963         if (traffic_log == 0)
 964                 iwl_reset_traffic_log(priv);
 965
 966         return count;
 967 }
 968
 969 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
 970                                                 char __user *user_buf,
 971                                                 size_t count, loff_t *ppos) {
 972
 973         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
 974         struct iwl_tx_queue *txq;
 975         struct iwl_queue *q;
 976         char *buf;
 977         int pos = 0;
 978         int cnt;
 979         int ret;
 980         const size_t bufsz = sizeof(char) * 60 * IWL_MAX_NUM_QUEUES;
 981
 982         buf = kzalloc(bufsz, GFP_KERNEL);
 983         if (!buf)
 984                 return -ENOMEM;
 985
 986         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 987                 txq = &priv->txq[cnt];
 988                 q = &txq->q;
 989                 pos += scnprintf(buf + pos, bufsz - pos,
 990                                 "hwq %.2d: read=%u write=%u stop=%d"
 991                                 " swq_id=%#.2x (ac %d/hwq %d)\n",
 992                                 cnt, q->read_ptr, q->write_ptr,
 993                                 !!test_bit(cnt, priv->queue_stopped),
 994                                 txq->swq_id,
 995                                 txq->swq_id & 0x80 ? txq->swq_id & 3 :
 996                                 txq->swq_id,
 997                                 txq->swq_id & 0x80 ? (txq->swq_id >> 2) &
 998                                 0x1f : txq->swq_id);
 999                 if (cnt >= 4)
1000                         continue;
1001                 /* for the ACs, display the stop count too */
1002                 pos += scnprintf(buf + pos, bufsz - pos,
1003                                 "        stop-count: %d\n",
1004                                 atomic_read(&priv->queue_stop_count[cnt]));
1005         }
1006         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1007         kfree(buf);
1008         return ret;
1009 }
1010
1011 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
1012                                                 char __user *user_buf,
1013                                                 size_t count, loff_t *ppos) {
1014
1015         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1016         struct iwl_rx_queue *rxq = &priv->rxq;
1017         char buf[256];
1018         int pos = 0;
1019         const size_t bufsz = sizeof(buf);
1020
1021         pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
1022                                                 rxq->read);
1023         pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
1024                                                 rxq->write);
1025         pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1026                                                 rxq->free_count);
1027         pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1028                          le16_to_cpu(rxq->rb_stts->closed_rb_num) &  0x0FFF);
1029         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1030 }
1031
1032 #define UCODE_STATISTICS_CLEAR_MSK              (0x1 << 0)
1033 #define UCODE_STATISTICS_FREQUENCY_MSK          (0x1 << 1)
1034 #define UCODE_STATISTICS_NARROW_BAND_MSK        (0x1 << 2)
1035
1036 static int iwl_dbgfs_statistics_flag(struct iwl_priv *priv, char *buf,
1037                                      int bufsz)
1038 {
1039         int p = 0;
1040
1041         p += scnprintf(buf + p, bufsz - p,
1042                 "Statistics Flag(0x%X):\n",
1043                 le32_to_cpu(priv->statistics.flag));
1044         if (le32_to_cpu(priv->statistics.flag) & UCODE_STATISTICS_CLEAR_MSK)
1045                 p += scnprintf(buf + p, bufsz - p,
1046                 "\tStatistics have been cleared\n");
1047         p += scnprintf(buf + p, bufsz - p,
1048                 "\tOperational Frequency: %s\n",
1049                 (le32_to_cpu(priv->statistics.flag) &
1050                 UCODE_STATISTICS_FREQUENCY_MSK)
1051                  ? "2.4 GHz" : "5.2 GHz");
1052         p += scnprintf(buf + p, bufsz - p,
1053                 "\tTGj Narrow Band: %s\n",
1054                 (le32_to_cpu(priv->statistics.flag) &
1055                 UCODE_STATISTICS_NARROW_BAND_MSK)
1056                  ? "enabled" : "disabled");
1057         return p;
1058 }
1059
1060
1061 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1062                                         char __user *user_buf,
1063                                         size_t count, loff_t *ppos)
1064 {
1065         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1066         int pos = 0;
1067         char *buf;
1068         int bufsz = sizeof(struct statistics_rx_phy) * 20 +
1069                 sizeof(struct statistics_rx_non_phy) * 20 +
1070                 sizeof(struct statistics_rx_ht_phy) * 20 + 400;
1071         ssize_t ret;
1072         struct statistics_rx_phy *ofdm;
1073         struct statistics_rx_phy *cck;
1074         struct statistics_rx_non_phy *general;
1075         struct statistics_rx_ht_phy *ht;
1076
1077         if (!iwl_is_alive(priv))
1078                 return -EAGAIN;
1079
1080         /* make request to uCode to retrieve statistics information */
1081         mutex_lock(&priv->mutex);
1082         ret = iwl_send_statistics_request(priv, 0);
1083         mutex_unlock(&priv->mutex);
1084
1085         if (ret) {
1086                 IWL_ERR(priv,
1087                         "Error sending statistics request: %zd\n", ret);
1088                 return -EAGAIN;
1089         }
1090         buf = kzalloc(bufsz, GFP_KERNEL);
1091         if (!buf) {
1092                 IWL_ERR(priv, "Can not allocate Buffer\n");
1093                 return -ENOMEM;
1094         }
1095
1096         /* the statistic information display here is based on
1097          * the last statistics notification from uCode
1098          * might not reflect the current uCode activity
1099          */
1100         ofdm = &priv->statistics.rx.ofdm;
1101         cck = &priv->statistics.rx.cck;
1102         general = &priv->statistics.rx.general;
1103         ht = &priv->statistics.rx.ofdm_ht;
1104         pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1105         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - OFDM:\n");
1106         pos += scnprintf(buf + pos, bufsz - pos, "ina_cnt: %u\n",
1107                          le32_to_cpu(ofdm->ina_cnt));
1108         pos += scnprintf(buf + pos, bufsz - pos, "fina_cnt: %u\n",
1109                          le32_to_cpu(ofdm->fina_cnt));
1110         pos += scnprintf(buf + pos, bufsz - pos, "plcp_err: %u\n",
1111                          le32_to_cpu(ofdm->plcp_err));
1112         pos += scnprintf(buf + pos, bufsz - pos, "crc32_err: %u\n",
1113                          le32_to_cpu(ofdm->crc32_err));
1114         pos += scnprintf(buf + pos, bufsz - pos, "overrun_err: %u\n",
1115                          le32_to_cpu(ofdm->overrun_err));
1116         pos += scnprintf(buf + pos, bufsz - pos, "early_overrun_err: %u\n",
1117                          le32_to_cpu(ofdm->early_overrun_err));
1118         pos += scnprintf(buf + pos, bufsz - pos, "crc32_good: %u\n",
1119                          le32_to_cpu(ofdm->crc32_good));
1120         pos += scnprintf(buf + pos, bufsz - pos, "false_alarm_cnt: %u\n",
1121                          le32_to_cpu(ofdm->false_alarm_cnt));
1122         pos += scnprintf(buf + pos, bufsz - pos, "fina_sync_err_cnt: %u\n",
1123                          le32_to_cpu(ofdm->fina_sync_err_cnt));
1124         pos += scnprintf(buf + pos, bufsz - pos, "sfd_timeout: %u\n",
1125                          le32_to_cpu(ofdm->sfd_timeout));
1126         pos += scnprintf(buf + pos, bufsz - pos, "fina_timeout: %u\n",
1127                          le32_to_cpu(ofdm->fina_timeout));
1128         pos += scnprintf(buf + pos, bufsz - pos, "unresponded_rts: %u\n",
1129                          le32_to_cpu(ofdm->unresponded_rts));
1130         pos += scnprintf(buf + pos, bufsz - pos,
1131                         "rxe_frame_limit_overrun: %u\n",
1132                         le32_to_cpu(ofdm->rxe_frame_limit_overrun));
1133         pos += scnprintf(buf + pos, bufsz - pos, "sent_ack_cnt: %u\n",
1134                          le32_to_cpu(ofdm->sent_ack_cnt));
1135         pos += scnprintf(buf + pos, bufsz - pos, "sent_cts_cnt: %u\n",
1136                          le32_to_cpu(ofdm->sent_cts_cnt));
1137         pos += scnprintf(buf + pos, bufsz - pos, "sent_ba_rsp_cnt: %u\n",
1138                          le32_to_cpu(ofdm->sent_ba_rsp_cnt));
1139         pos += scnprintf(buf + pos, bufsz - pos, "dsp_self_kill: %u\n",
1140                          le32_to_cpu(ofdm->dsp_self_kill));
1141         pos += scnprintf(buf + pos, bufsz - pos, "mh_format_err: %u\n",
1142                          le32_to_cpu(ofdm->mh_format_err));
1143         pos += scnprintf(buf + pos, bufsz - pos, "re_acq_main_rssi_sum: %u\n",
1144                          le32_to_cpu(ofdm->re_acq_main_rssi_sum));
1145
1146         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - CCK:\n");
1147         pos += scnprintf(buf + pos, bufsz - pos, "ina_cnt: %u\n",
1148                          le32_to_cpu(cck->ina_cnt));
1149         pos += scnprintf(buf + pos, bufsz - pos, "fina_cnt: %u\n",
1150                          le32_to_cpu(cck->fina_cnt));
1151         pos += scnprintf(buf + pos, bufsz - pos, "plcp_err: %u\n",
1152                          le32_to_cpu(cck->plcp_err));
1153         pos += scnprintf(buf + pos, bufsz - pos, "crc32_err: %u\n",
1154                          le32_to_cpu(cck->crc32_err));
1155         pos += scnprintf(buf + pos, bufsz - pos, "overrun_err: %u\n",
1156                          le32_to_cpu(cck->overrun_err));
1157         pos += scnprintf(buf + pos, bufsz - pos, "early_overrun_err: %u\n",
1158                          le32_to_cpu(cck->early_overrun_err));
1159         pos += scnprintf(buf + pos, bufsz - pos, "crc32_good: %u\n",
1160                          le32_to_cpu(cck->crc32_good));
1161         pos += scnprintf(buf + pos, bufsz - pos, "false_alarm_cnt: %u\n",
1162                          le32_to_cpu(cck->false_alarm_cnt));
1163         pos += scnprintf(buf + pos, bufsz - pos, "fina_sync_err_cnt: %u\n",
1164                          le32_to_cpu(cck->fina_sync_err_cnt));
1165         pos += scnprintf(buf + pos, bufsz - pos, "sfd_timeout: %u\n",
1166                          le32_to_cpu(cck->sfd_timeout));
1167         pos += scnprintf(buf + pos, bufsz - pos, "fina_timeout: %u\n",
1168                          le32_to_cpu(cck->fina_timeout));
1169         pos += scnprintf(buf + pos, bufsz - pos, "unresponded_rts: %u\n",
1170                          le32_to_cpu(cck->unresponded_rts));
1171         pos += scnprintf(buf + pos, bufsz - pos,
1172                         "rxe_frame_limit_overrun: %u\n",
1173                         le32_to_cpu(cck->rxe_frame_limit_overrun));
1174         pos += scnprintf(buf + pos, bufsz - pos, "sent_ack_cnt: %u\n",
1175                          le32_to_cpu(cck->sent_ack_cnt));
1176         pos += scnprintf(buf + pos, bufsz - pos, "sent_cts_cnt: %u\n",
1177                          le32_to_cpu(cck->sent_cts_cnt));
1178         pos += scnprintf(buf + pos, bufsz - pos, "sent_ba_rsp_cnt: %u\n",
1179                          le32_to_cpu(cck->sent_ba_rsp_cnt));
1180         pos += scnprintf(buf + pos, bufsz - pos, "dsp_self_kill: %u\n",
1181                          le32_to_cpu(cck->dsp_self_kill));
1182         pos += scnprintf(buf + pos, bufsz - pos, "mh_format_err: %u\n",
1183                          le32_to_cpu(cck->mh_format_err));
1184         pos += scnprintf(buf + pos, bufsz - pos, "re_acq_main_rssi_sum: %u\n",
1185                          le32_to_cpu(cck->re_acq_main_rssi_sum));
1186
1187         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - GENERAL:\n");
1188         pos += scnprintf(buf + pos, bufsz - pos, "bogus_cts: %u\n",
1189                          le32_to_cpu(general->bogus_cts));
1190         pos += scnprintf(buf + pos, bufsz - pos, "bogus_ack: %u\n",
1191                          le32_to_cpu(general->bogus_ack));
1192         pos += scnprintf(buf + pos, bufsz - pos, "non_bssid_frames: %u\n",
1193                          le32_to_cpu(general->non_bssid_frames));
1194         pos += scnprintf(buf + pos, bufsz - pos, "filtered_frames: %u\n",
1195                          le32_to_cpu(general->filtered_frames));
1196         pos += scnprintf(buf + pos, bufsz - pos, "non_channel_beacons: %u\n",
1197                          le32_to_cpu(general->non_channel_beacons));
1198         pos += scnprintf(buf + pos, bufsz - pos, "channel_beacons: %u\n",
1199                          le32_to_cpu(general->channel_beacons));
1200         pos += scnprintf(buf + pos, bufsz - pos, "num_missed_bcon: %u\n",
1201                          le32_to_cpu(general->num_missed_bcon));
1202         pos += scnprintf(buf + pos, bufsz - pos,
1203                         "adc_rx_saturation_time: %u\n",
1204                         le32_to_cpu(general->adc_rx_saturation_time));
1205         pos += scnprintf(buf + pos, bufsz - pos,
1206                         "ina_detection_search_time: %u\n",
1207                         le32_to_cpu(general->ina_detection_search_time));
1208         pos += scnprintf(buf + pos, bufsz - pos, "beacon_silence_rssi_a: %u\n",
1209                          le32_to_cpu(general->beacon_silence_rssi_a));
1210         pos += scnprintf(buf + pos, bufsz - pos, "beacon_silence_rssi_b: %u\n",
1211                          le32_to_cpu(general->beacon_silence_rssi_b));
1212         pos += scnprintf(buf + pos, bufsz - pos, "beacon_silence_rssi_c: %u\n",
1213                          le32_to_cpu(general->beacon_silence_rssi_c));
1214         pos += scnprintf(buf + pos, bufsz - pos,
1215                         "interference_data_flag: %u\n",
1216                         le32_to_cpu(general->interference_data_flag));
1217         pos += scnprintf(buf + pos, bufsz - pos, "channel_load: %u\n",
1218                          le32_to_cpu(general->channel_load));
1219         pos += scnprintf(buf + pos, bufsz - pos, "dsp_false_alarms: %u\n",
1220                          le32_to_cpu(general->dsp_false_alarms));
1221         pos += scnprintf(buf + pos, bufsz - pos, "beacon_rssi_a: %u\n",
1222                          le32_to_cpu(general->beacon_rssi_a));
1223         pos += scnprintf(buf + pos, bufsz - pos, "beacon_rssi_b: %u\n",
1224                          le32_to_cpu(general->beacon_rssi_b));
1225         pos += scnprintf(buf + pos, bufsz - pos, "beacon_rssi_c: %u\n",
1226                          le32_to_cpu(general->beacon_rssi_c));
1227         pos += scnprintf(buf + pos, bufsz - pos, "beacon_energy_a: %u\n",
1228                          le32_to_cpu(general->beacon_energy_a));
1229         pos += scnprintf(buf + pos, bufsz - pos, "beacon_energy_b: %u\n",
1230                          le32_to_cpu(general->beacon_energy_b));
1231         pos += scnprintf(buf + pos, bufsz - pos, "beacon_energy_c: %u\n",
1232                          le32_to_cpu(general->beacon_energy_c));
1233
1234         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - OFDM_HT:\n");
1235         pos += scnprintf(buf + pos, bufsz - pos, "plcp_err: %u\n",
1236                          le32_to_cpu(ht->plcp_err));
1237         pos += scnprintf(buf + pos, bufsz - pos, "overrun_err: %u\n",
1238                          le32_to_cpu(ht->overrun_err));
1239         pos += scnprintf(buf + pos, bufsz - pos, "early_overrun_err: %u\n",
1240                          le32_to_cpu(ht->early_overrun_err));
1241         pos += scnprintf(buf + pos, bufsz - pos, "crc32_good: %u\n",
1242                          le32_to_cpu(ht->crc32_good));
1243         pos += scnprintf(buf + pos, bufsz - pos, "crc32_err: %u\n",
1244                          le32_to_cpu(ht->crc32_err));
1245         pos += scnprintf(buf + pos, bufsz - pos, "mh_format_err: %u\n",
1246                          le32_to_cpu(ht->mh_format_err));
1247         pos += scnprintf(buf + pos, bufsz - pos, "agg_crc32_good: %u\n",
1248                          le32_to_cpu(ht->agg_crc32_good));
1249         pos += scnprintf(buf + pos, bufsz - pos, "agg_mpdu_cnt: %u\n",
1250                          le32_to_cpu(ht->agg_mpdu_cnt));
1251         pos += scnprintf(buf + pos, bufsz - pos, "agg_cnt: %u\n",
1252                          le32_to_cpu(ht->agg_cnt));
1253
1254         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1255         kfree(buf);
1256         return ret;
1257 }
1258
1259 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1260                                         char __user *user_buf,
1261                                         size_t count, loff_t *ppos)
1262 {
1263         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1264         int pos = 0;
1265         char *buf;
1266         int bufsz = (sizeof(struct statistics_tx) * 24) + 250;
1267         ssize_t ret;
1268         struct statistics_tx *tx;
1269
1270         if (!iwl_is_alive(priv))
1271                 return -EAGAIN;
1272
1273         /* make request to uCode to retrieve statistics information */
1274         mutex_lock(&priv->mutex);
1275         ret = iwl_send_statistics_request(priv, 0);
1276         mutex_unlock(&priv->mutex);
1277
1278         if (ret) {
1279                 IWL_ERR(priv,
1280                         "Error sending statistics request: %zd\n", ret);
1281                 return -EAGAIN;
1282         }
1283         buf = kzalloc(bufsz, GFP_KERNEL);
1284         if (!buf) {
1285                 IWL_ERR(priv, "Can not allocate Buffer\n");
1286                 return -ENOMEM;
1287         }
1288
1289         /* the statistic information display here is based on
1290          * the last statistics notification from uCode
1291          * might not reflect the current uCode activity
1292          */
1293         tx = &priv->statistics.tx;
1294         pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1295         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Tx:\n");
1296         pos += scnprintf(buf + pos, bufsz - pos, "preamble: %u\n",
1297                          le32_to_cpu(tx->preamble_cnt));
1298         pos += scnprintf(buf + pos, bufsz - pos, "rx_detected_cnt: %u\n",
1299                          le32_to_cpu(tx->rx_detected_cnt));
1300         pos += scnprintf(buf + pos, bufsz - pos, "bt_prio_defer_cnt: %u\n",
1301                          le32_to_cpu(tx->bt_prio_defer_cnt));
1302         pos += scnprintf(buf + pos, bufsz - pos, "bt_prio_kill_cnt: %u\n",
1303                          le32_to_cpu(tx->bt_prio_kill_cnt));
1304         pos += scnprintf(buf + pos, bufsz - pos, "few_bytes_cnt: %u\n",
1305                          le32_to_cpu(tx->few_bytes_cnt));
1306         pos += scnprintf(buf + pos, bufsz - pos, "cts_timeout: %u\n",
1307                          le32_to_cpu(tx->cts_timeout));
1308         pos += scnprintf(buf + pos, bufsz - pos, "ack_timeout: %u\n",
1309                          le32_to_cpu(tx->ack_timeout));
1310         pos += scnprintf(buf + pos, bufsz - pos, "expected_ack_cnt: %u\n",
1311                          le32_to_cpu(tx->expected_ack_cnt));
1312         pos += scnprintf(buf + pos, bufsz - pos, "actual_ack_cnt: %u\n",
1313                          le32_to_cpu(tx->actual_ack_cnt));
1314         pos += scnprintf(buf + pos, bufsz - pos, "dump_msdu_cnt: %u\n",
1315                          le32_to_cpu(tx->dump_msdu_cnt));
1316         pos += scnprintf(buf + pos, bufsz - pos,
1317                         "burst_abort_next_frame_mismatch_cnt: %u\n",
1318                         le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt));
1319         pos += scnprintf(buf + pos, bufsz - pos,
1320                         "burst_abort_missing_next_frame_cnt: %u\n",
1321                         le32_to_cpu(tx->burst_abort_missing_next_frame_cnt));
1322         pos += scnprintf(buf + pos, bufsz - pos, "cts_timeout_collision: %u\n",
1323                          le32_to_cpu(tx->cts_timeout_collision));
1324         pos += scnprintf(buf + pos, bufsz - pos,
1325                         "ack_or_ba_timeout_collision: %u\n",
1326                         le32_to_cpu(tx->ack_or_ba_timeout_collision));
1327         pos += scnprintf(buf + pos, bufsz - pos, "agg ba_timeout: %u\n",
1328                          le32_to_cpu(tx->agg.ba_timeout));
1329         pos += scnprintf(buf + pos, bufsz - pos,
1330                         "agg ba_reschedule_frames: %u\n",
1331                         le32_to_cpu(tx->agg.ba_reschedule_frames));
1332         pos += scnprintf(buf + pos, bufsz - pos,
1333                         "agg scd_query_agg_frame_cnt: %u\n",
1334                         le32_to_cpu(tx->agg.scd_query_agg_frame_cnt));
1335         pos += scnprintf(buf + pos, bufsz - pos, "agg scd_query_no_agg: %u\n",
1336                          le32_to_cpu(tx->agg.scd_query_no_agg));
1337         pos += scnprintf(buf + pos, bufsz - pos, "agg scd_query_agg: %u\n",
1338                          le32_to_cpu(tx->agg.scd_query_agg));
1339         pos += scnprintf(buf + pos, bufsz - pos,
1340                         "agg scd_query_mismatch: %u\n",
1341                         le32_to_cpu(tx->agg.scd_query_mismatch));
1342         pos += scnprintf(buf + pos, bufsz - pos, "agg frame_not_ready: %u\n",
1343                          le32_to_cpu(tx->agg.frame_not_ready));
1344         pos += scnprintf(buf + pos, bufsz - pos, "agg underrun: %u\n",
1345                          le32_to_cpu(tx->agg.underrun));
1346         pos += scnprintf(buf + pos, bufsz - pos, "agg bt_prio_kill: %u\n",
1347                          le32_to_cpu(tx->agg.bt_prio_kill));
1348         pos += scnprintf(buf + pos, bufsz - pos, "agg rx_ba_rsp_cnt: %u\n",
1349                          le32_to_cpu(tx->agg.rx_ba_rsp_cnt));
1350
1351         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1352         kfree(buf);
1353         return ret;
1354 }
1355
1356 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1357                                         char __user *user_buf,
1358                                         size_t count, loff_t *ppos)
1359 {
1360         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1361         int pos = 0;
1362         char *buf;
1363         int bufsz = sizeof(struct statistics_general) * 4 + 250;
1364         ssize_t ret;
1365         struct statistics_general *general;
1366         struct statistics_dbg *dbg;
1367         struct statistics_div *div;
1368
1369         if (!iwl_is_alive(priv))
1370                 return -EAGAIN;
1371
1372         /* make request to uCode to retrieve statistics information */
1373         mutex_lock(&priv->mutex);
1374         ret = iwl_send_statistics_request(priv, 0);
1375         mutex_unlock(&priv->mutex);
1376
1377         if (ret) {
1378                 IWL_ERR(priv,
1379                         "Error sending statistics request: %zd\n", ret);
1380                 return -EAGAIN;
1381         }
1382         buf = kzalloc(bufsz, GFP_KERNEL);
1383         if (!buf) {
1384                 IWL_ERR(priv, "Can not allocate Buffer\n");
1385                 return -ENOMEM;
1386         }
1387
1388         /* the statistic information display here is based on
1389          * the last statistics notification from uCode
1390          * might not reflect the current uCode activity
1391          */
1392         general = &priv->statistics.general;
1393         dbg = &priv->statistics.general.dbg;
1394         div = &priv->statistics.general.div;
1395         pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1396         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_General:\n");
1397         pos += scnprintf(buf + pos, bufsz - pos, "temperature: %u\n",
1398                          le32_to_cpu(general->temperature));
1399         pos += scnprintf(buf + pos, bufsz - pos, "temperature_m: %u\n",
1400                          le32_to_cpu(general->temperature_m));
1401         pos += scnprintf(buf + pos, bufsz - pos, "burst_check: %u\n",
1402                          le32_to_cpu(dbg->burst_check));
1403         pos += scnprintf(buf + pos, bufsz - pos, "burst_count: %u\n",
1404                          le32_to_cpu(dbg->burst_count));
1405         pos += scnprintf(buf + pos, bufsz - pos, "sleep_time: %u\n",
1406                          le32_to_cpu(general->sleep_time));
1407         pos += scnprintf(buf + pos, bufsz - pos, "slots_out: %u\n",
1408                          le32_to_cpu(general->slots_out));
1409         pos += scnprintf(buf + pos, bufsz - pos, "slots_idle: %u\n",
1410                          le32_to_cpu(general->slots_idle));
1411         pos += scnprintf(buf + pos, bufsz - pos, "ttl_timestamp: %u\n",
1412                          le32_to_cpu(general->ttl_timestamp));
1413         pos += scnprintf(buf + pos, bufsz - pos, "tx_on_a: %u\n",
1414                          le32_to_cpu(div->tx_on_a));
1415         pos += scnprintf(buf + pos, bufsz - pos, "tx_on_b: %u\n",
1416                          le32_to_cpu(div->tx_on_b));
1417         pos += scnprintf(buf + pos, bufsz - pos, "exec_time: %u\n",
1418                          le32_to_cpu(div->exec_time));
1419         pos += scnprintf(buf + pos, bufsz - pos, "probe_time: %u\n",
1420                          le32_to_cpu(div->probe_time));
1421         pos += scnprintf(buf + pos, bufsz - pos, "rx_enable_counter: %u\n",
1422                          le32_to_cpu(general->rx_enable_counter));
1423         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1424         kfree(buf);
1425         return ret;
1426 }
1427
1428 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1429                                         char __user *user_buf,
1430                                         size_t count, loff_t *ppos) {
1431
1432         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1433         int pos = 0;
1434         int cnt = 0;
1435         char *buf;
1436         int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1437         ssize_t ret;
1438         struct iwl_sensitivity_data *data;
1439
1440         data = &priv->sensitivity_data;
1441         buf = kzalloc(bufsz, GFP_KERNEL);
1442         if (!buf) {
1443                 IWL_ERR(priv, "Can not allocate Buffer\n");
1444                 return -ENOMEM;
1445         }
1446
1447         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1448                         data->auto_corr_ofdm);
1449         pos += scnprintf(buf + pos, bufsz - pos,
1450                         "auto_corr_ofdm_mrc:\t\t %u\n",
1451                         data->auto_corr_ofdm_mrc);
1452         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1453                         data->auto_corr_ofdm_x1);
1454         pos += scnprintf(buf + pos, bufsz - pos,
1455                         "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1456                         data->auto_corr_ofdm_mrc_x1);
1457         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1458                         data->auto_corr_cck);
1459         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1460                         data->auto_corr_cck_mrc);
1461         pos += scnprintf(buf + pos, bufsz - pos,
1462                         "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1463                         data->last_bad_plcp_cnt_ofdm);
1464         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1465                         data->last_fa_cnt_ofdm);
1466         pos += scnprintf(buf + pos, bufsz - pos,
1467                         "last_bad_plcp_cnt_cck:\t\t %u\n",
1468                         data->last_bad_plcp_cnt_cck);
1469         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1470                         data->last_fa_cnt_cck);
1471         pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1472                         data->nrg_curr_state);
1473         pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1474                         data->nrg_prev_state);
1475         pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1476         for (cnt = 0; cnt < 10; cnt++) {
1477                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1478                                 data->nrg_value[cnt]);
1479         }
1480         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1481         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1482         for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1483                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1484                                 data->nrg_silence_rssi[cnt]);
1485         }
1486         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1487         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1488                         data->nrg_silence_ref);
1489         pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1490                         data->nrg_energy_idx);
1491         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1492                         data->nrg_silence_idx);
1493         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1494                         data->nrg_th_cck);
1495         pos += scnprintf(buf + pos, bufsz - pos,
1496                         "nrg_auto_corr_silence_diff:\t %u\n",
1497                         data->nrg_auto_corr_silence_diff);
1498         pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1499                         data->num_in_cck_no_fa);
1500         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1501                         data->nrg_th_ofdm);
1502
1503         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1504         kfree(buf);
1505         return ret;
1506 }
1507
1508
1509 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1510                                         char __user *user_buf,
1511                                         size_t count, loff_t *ppos) {
1512
1513         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1514         int pos = 0;
1515         int cnt = 0;
1516         char *buf;
1517         int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1518         ssize_t ret;
1519         struct iwl_chain_noise_data *data;
1520
1521         data = &priv->chain_noise_data;
1522         buf = kzalloc(bufsz, GFP_KERNEL);
1523         if (!buf) {
1524                 IWL_ERR(priv, "Can not allocate Buffer\n");
1525                 return -ENOMEM;
1526         }
1527
1528         pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1529                         data->active_chains);
1530         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1531                         data->chain_noise_a);
1532         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1533                         data->chain_noise_b);
1534         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1535                         data->chain_noise_c);
1536         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1537                         data->chain_signal_a);
1538         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1539                         data->chain_signal_b);
1540         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1541                         data->chain_signal_c);
1542         pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1543                         data->beacon_count);
1544
1545         pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1546         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1547                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1548                                 data->disconn_array[cnt]);
1549         }
1550         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1551         pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1552         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1553                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1554                                 data->delta_gain_code[cnt]);
1555         }
1556         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1557         pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1558                         data->radio_write);
1559         pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1560                         data->state);
1561
1562         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1563         kfree(buf);
1564         return ret;
1565 }
1566
1567 static ssize_t iwl_dbgfs_tx_power_read(struct file *file,
1568                                         char __user *user_buf,
1569                                         size_t count, loff_t *ppos) {
1570
1571         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1572         char buf[128];
1573         int pos = 0;
1574         ssize_t ret;
1575         const size_t bufsz = sizeof(buf);
1576         struct statistics_tx *tx;
1577
1578         if (!iwl_is_alive(priv))
1579                 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
1580         else {
1581                 /* make request to uCode to retrieve statistics information */
1582                 mutex_lock(&priv->mutex);
1583                 ret = iwl_send_statistics_request(priv, 0);
1584                 mutex_unlock(&priv->mutex);
1585
1586                 if (ret) {
1587                         IWL_ERR(priv, "Error sending statistics request: %zd\n",
1588                                 ret);
1589                         return -EAGAIN;
1590                 }
1591                 tx = &priv->statistics.tx;
1592                 if (tx->tx_power.ant_a ||
1593                     tx->tx_power.ant_b ||
1594                     tx->tx_power.ant_c) {
1595                         pos += scnprintf(buf + pos, bufsz - pos,
1596                                 "tx power: (1/2 dB step)\n");
1597                         if ((priv->cfg->valid_tx_ant & ANT_A) &&
1598                             tx->tx_power.ant_a)
1599                                 pos += scnprintf(buf + pos, bufsz - pos,
1600                                                 "\tantenna A: 0x%X\n",
1601                                                 tx->tx_power.ant_a);
1602                         if ((priv->cfg->valid_tx_ant & ANT_B) &&
1603                             tx->tx_power.ant_b)
1604                                 pos += scnprintf(buf + pos, bufsz - pos,
1605                                                 "\tantenna B: 0x%X\n",
1606                                                 tx->tx_power.ant_b);
1607                         if ((priv->cfg->valid_tx_ant & ANT_C) &&
1608                             tx->tx_power.ant_c)
1609                                 pos += scnprintf(buf + pos, bufsz - pos,
1610                                                 "\tantenna C: 0x%X\n",
1611                                                 tx->tx_power.ant_c);
1612                 } else
1613                         pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
1614         }
1615         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1616 }
1617
1618 DEBUGFS_READ_WRITE_FILE_OPS(rx_statistics);
1619 DEBUGFS_READ_WRITE_FILE_OPS(tx_statistics);
1620 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
1621 DEBUGFS_READ_FILE_OPS(rx_queue);
1622 DEBUGFS_READ_FILE_OPS(tx_queue);
1623 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
1624 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
1625 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
1626 DEBUGFS_READ_FILE_OPS(sensitivity);
1627 DEBUGFS_READ_FILE_OPS(chain_noise);
1628 DEBUGFS_READ_FILE_OPS(tx_power);
1629
1630 /*
1631  * Create the debugfs files and directories
1632  *
1633  */
1634 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
1635 {
1636         struct iwl_debugfs *dbgfs;
1637         struct dentry *phyd = priv->hw->wiphy->debugfsdir;
1638         int ret = 0;
1639
1640         dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL);
1641         if (!dbgfs) {
1642                 ret = -ENOMEM;
1643                 goto err;
1644         }
1645
1646         priv->dbgfs = dbgfs;
1647         dbgfs->name = name;
1648         dbgfs->dir_drv = debugfs_create_dir(name, phyd);
1649         if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)) {
1650                 ret = -ENOENT;
1651                 goto err;
1652         }
1653
1654         DEBUGFS_ADD_DIR(data, dbgfs->dir_drv);
1655         DEBUGFS_ADD_DIR(rf, dbgfs->dir_drv);
1656         DEBUGFS_ADD_DIR(debug, dbgfs->dir_drv);
1657         DEBUGFS_ADD_FILE(nvm, data);
1658         DEBUGFS_ADD_FILE(sram, data);
1659         DEBUGFS_ADD_FILE(log_event, data);
1660         DEBUGFS_ADD_FILE(stations, data);
1661         DEBUGFS_ADD_FILE(channels, data);
1662         DEBUGFS_ADD_FILE(status, data);
1663         DEBUGFS_ADD_FILE(interrupt, data);
1664         DEBUGFS_ADD_FILE(qos, data);
1665         DEBUGFS_ADD_FILE(led, data);
1666         DEBUGFS_ADD_FILE(sleep_level_override, data);
1667         DEBUGFS_ADD_FILE(current_sleep_command, data);
1668         DEBUGFS_ADD_FILE(thermal_throttling, data);
1669         DEBUGFS_ADD_FILE(disable_ht40, data);
1670         DEBUGFS_ADD_FILE(rx_statistics, debug);
1671         DEBUGFS_ADD_FILE(tx_statistics, debug);
1672         DEBUGFS_ADD_FILE(traffic_log, debug);
1673         DEBUGFS_ADD_FILE(rx_queue, debug);
1674         DEBUGFS_ADD_FILE(tx_queue, debug);
1675         DEBUGFS_ADD_FILE(tx_power, debug);
1676         if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
1677                 DEBUGFS_ADD_FILE(ucode_rx_stats, debug);
1678                 DEBUGFS_ADD_FILE(ucode_tx_stats, debug);
1679                 DEBUGFS_ADD_FILE(ucode_general_stats, debug);
1680                 DEBUGFS_ADD_FILE(sensitivity, debug);
1681                 DEBUGFS_ADD_FILE(chain_noise, debug);
1682         }
1683         DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
1684         DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
1685                          &priv->disable_chain_noise_cal);
1686         if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
1687             ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
1688                 DEBUGFS_ADD_BOOL(disable_tx_power, rf,
1689                                 &priv->disable_tx_power_cal);
1690         return 0;
1691
1692 err:
1693         IWL_ERR(priv, "Can't open the debugfs directory\n");
1694         iwl_dbgfs_unregister(priv);
1695         return ret;
1696 }
1697 EXPORT_SYMBOL(iwl_dbgfs_register);
1698
1699 /**
1700  * Remove the debugfs files and directories
1701  *
1702  */
1703 void iwl_dbgfs_unregister(struct iwl_priv *priv)
1704 {
1705         if (!priv->dbgfs)
1706                 return;
1707
1708         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sleep_level_override);
1709         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_current_sleep_command);
1710         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm);
1711         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
1712         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event);
1713         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations);
1714         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_channels);
1715         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_status);
1716         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_interrupt);
1717         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_qos);
1718         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_led);
1719         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling);
1720         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_disable_ht40);
1721         DEBUGFS_REMOVE(priv->dbgfs->dir_data);
1722         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_statistics);
1723         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_statistics);
1724         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_traffic_log);
1725         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_queue);
1726         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_queue);
1727         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_power);
1728         if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
1729                 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
1730                         file_ucode_rx_stats);
1731                 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
1732                         file_ucode_tx_stats);
1733                 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
1734                         file_ucode_general_stats);
1735                 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
1736                         file_sensitivity);
1737                 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
1738                         file_chain_noise);
1739         }
1740         DEBUGFS_REMOVE(priv->dbgfs->dir_debug);
1741         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
1742         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
1743         if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
1744             ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
1745                 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_tx_power);
1746         DEBUGFS_REMOVE(priv->dbgfs->dir_rf);
1747         DEBUGFS_REMOVE(priv->dbgfs->dir_drv);
1748         kfree(priv->dbgfs);
1749         priv->dbgfs = NULL;
1750 }
1751 EXPORT_SYMBOL(iwl_dbgfs_unregister);
1752
1753
1754