drivers/net/wireless/iwlwifi/iwl-debugfs.c

   1 /******************************************************************************
   2  *
   3  * GPL LICENSE SUMMARY
   4  *
   5  * Copyright(c) 2008 - 2012 Intel Corporation. All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of version 2 of the GNU General Public License as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  19  * USA
  20  *
  21  * The full GNU General Public License is included in this distribution
  22  * in the file called LICENSE.GPL.
  23  *
  24  * Contact Information:
  25  *  Intel Linux Wireless <ilw@linux.intel.com>
  26  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  27  *****************************************************************************/
  28
  29 #include <linux/slab.h>
  30 #include <linux/kernel.h>
  31 #include <linux/module.h>
  32 #include <linux/debugfs.h>
  33
  34 #include <linux/ieee80211.h>
  35 #include <net/mac80211.h>
  36
  37
  38 #include "iwl-dev.h"
  39 #include "iwl-debug.h"
  40 #include "iwl-core.h"
  41 #include "iwl-io.h"
  42 #include "iwl-agn.h"
  43
  44 /* create and remove of files */
  45 #define DEBUGFS_ADD_FILE(name, parent, mode) do {                       \
  46         if (!debugfs_create_file(#name, mode, parent, priv,             \
  47                                  &iwl_dbgfs_##name##_ops))              \
  48                 goto err;                                               \
  49 } while (0)
  50
  51 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do {                        \
  52         struct dentry *__tmp;                                           \
  53         __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR,           \
  54                                     parent, ptr);                       \
  55         if (IS_ERR(__tmp) || !__tmp)                                    \
  56                 goto err;                                               \
  57 } while (0)
  58
  59 #define DEBUGFS_ADD_X32(name, parent, ptr) do {                         \
  60         struct dentry *__tmp;                                           \
  61         __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR,            \
  62                                    parent, ptr);                        \
  63         if (IS_ERR(__tmp) || !__tmp)                                    \
  64                 goto err;                                               \
  65 } while (0)
  66
  67 #define DEBUGFS_ADD_U32(name, parent, ptr, mode) do {                   \
  68         struct dentry *__tmp;                                           \
  69         __tmp = debugfs_create_u32(#name, mode,                         \
  70                                    parent, ptr);                        \
  71         if (IS_ERR(__tmp) || !__tmp)                                    \
  72                 goto err;                                               \
  73 } while (0)
  74
  75 /* file operation */
  76 #define DEBUGFS_READ_FUNC(name)                                         \
  77 static ssize_t iwl_dbgfs_##name##_read(struct file *file,               \
  78                                         char __user *user_buf,          \
  79                                         size_t count, loff_t *ppos);
  80
  81 #define DEBUGFS_WRITE_FUNC(name)                                        \
  82 static ssize_t iwl_dbgfs_##name##_write(struct file *file,              \
  83                                         const char __user *user_buf,    \
  84                                         size_t count, loff_t *ppos);
  85
  86
  87 #define DEBUGFS_READ_FILE_OPS(name)                                     \
  88         DEBUGFS_READ_FUNC(name);                                        \
  89 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  90         .read = iwl_dbgfs_##name##_read,                                \
  91         .open = simple_open,                                            \
  92         .llseek = generic_file_llseek,                                  \
  93 };
  94
  95 #define DEBUGFS_WRITE_FILE_OPS(name)                                    \
  96         DEBUGFS_WRITE_FUNC(name);                                       \
  97 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  98         .write = iwl_dbgfs_##name##_write,                              \
  99         .open = simple_open,                                            \
 100         .llseek = generic_file_llseek,                                  \
 101 };
 102
 103
 104 #define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
 105         DEBUGFS_READ_FUNC(name);                                        \
 106         DEBUGFS_WRITE_FUNC(name);                                       \
 107 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
 108         .write = iwl_dbgfs_##name##_write,                              \
 109         .read = iwl_dbgfs_##name##_read,                                \
 110         .open = simple_open,                                            \
 111         .llseek = generic_file_llseek,                                  \
 112 };
 113
 114 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
 115                                                 char __user *user_buf,
 116                                                 size_t count, loff_t *ppos) {
 117
 118         struct iwl_priv *priv = file->private_data;
 119         char *buf;
 120         int pos = 0;
 121
 122         int cnt;
 123         ssize_t ret;
 124         const size_t bufsz = 100 +
 125                 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
 126         buf = kzalloc(bufsz, GFP_KERNEL);
 127         if (!buf)
 128                 return -ENOMEM;
 129         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
 130         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
 131                 pos += scnprintf(buf + pos, bufsz - pos,
 132                                  "\t%25s\t\t: %u\n",
 133                                  get_mgmt_string(cnt),
 134                                  priv->tx_stats.mgmt[cnt]);
 135         }
 136         pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
 137         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
 138                 pos += scnprintf(buf + pos, bufsz - pos,
 139                                  "\t%25s\t\t: %u\n",
 140                                  get_ctrl_string(cnt),
 141                                  priv->tx_stats.ctrl[cnt]);
 142         }
 143         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
 144         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
 145                          priv->tx_stats.data_cnt);
 146         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
 147                          priv->tx_stats.data_bytes);
 148         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 149         kfree(buf);
 150         return ret;
 151 }
 152
 153 static ssize_t iwl_dbgfs_clear_traffic_statistics_write(struct file *file,
 154                                         const char __user *user_buf,
 155                                         size_t count, loff_t *ppos)
 156 {
 157         struct iwl_priv *priv = file->private_data;
 158         u32 clear_flag;
 159         char buf[8];
 160         int buf_size;
 161
 162         memset(buf, 0, sizeof(buf));
 163         buf_size = min(count, sizeof(buf) -  1);
 164         if (copy_from_user(buf, user_buf, buf_size))
 165                 return -EFAULT;
 166         if (sscanf(buf, "%x", &clear_flag) != 1)
 167                 return -EFAULT;
 168         iwl_clear_traffic_stats(priv);
 169
 170         return count;
 171 }
 172
 173 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
 174                                                 char __user *user_buf,
 175                                                 size_t count, loff_t *ppos) {
 176
 177         struct iwl_priv *priv = file->private_data;
 178         char *buf;
 179         int pos = 0;
 180         int cnt;
 181         ssize_t ret;
 182         const size_t bufsz = 100 +
 183                 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
 184         buf = kzalloc(bufsz, GFP_KERNEL);
 185         if (!buf)
 186                 return -ENOMEM;
 187
 188         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
 189         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
 190                 pos += scnprintf(buf + pos, bufsz - pos,
 191                                  "\t%25s\t\t: %u\n",
 192                                  get_mgmt_string(cnt),
 193                                  priv->rx_stats.mgmt[cnt]);
 194         }
 195         pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
 196         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
 197                 pos += scnprintf(buf + pos, bufsz - pos,
 198                                  "\t%25s\t\t: %u\n",
 199                                  get_ctrl_string(cnt),
 200                                  priv->rx_stats.ctrl[cnt]);
 201         }
 202         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
 203         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
 204                          priv->rx_stats.data_cnt);
 205         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
 206                          priv->rx_stats.data_bytes);
 207
 208         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 209         kfree(buf);
 210         return ret;
 211 }
 212
 213 static ssize_t iwl_dbgfs_sram_read(struct file *file,
 214                                         char __user *user_buf,
 215                                         size_t count, loff_t *ppos)
 216 {
 217         u32 val = 0;
 218         char *buf;
 219         ssize_t ret;
 220         int i = 0;
 221         bool device_format = false;
 222         int offset = 0;
 223         int len = 0;
 224         int pos = 0;
 225         int sram;
 226         struct iwl_priv *priv = file->private_data;
 227         const struct fw_img *img;
 228         size_t bufsz;
 229
 230         /* default is to dump the entire data segment */
 231         if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
 232                 priv->dbgfs_sram_offset = 0x800000;
 233                 if (!priv->ucode_loaded)
 234                         return -EINVAL;
 235                 img = &priv->fw->img[priv->cur_ucode];
 236                 priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
 237         }
 238         len = priv->dbgfs_sram_len;
 239
 240         if (len == -4) {
 241                 device_format = true;
 242                 len = 4;
 243         }
 244
 245         bufsz =  50 + len * 4;
 246         buf = kmalloc(bufsz, GFP_KERNEL);
 247         if (!buf)
 248                 return -ENOMEM;
 249
 250         pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
 251                          len);
 252         pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
 253                         priv->dbgfs_sram_offset);
 254
 255         /* adjust sram address since reads are only on even u32 boundaries */
 256         offset = priv->dbgfs_sram_offset & 0x3;
 257         sram = priv->dbgfs_sram_offset & ~0x3;
 258
 259         /* read the first u32 from sram */
 260         val = iwl_read_targ_mem(priv->trans, sram);
 261
 262         for (; len; len--) {
 263                 /* put the address at the start of every line */
 264                 if (i == 0)
 265                         pos += scnprintf(buf + pos, bufsz - pos,
 266                                 "%08X: ", sram + offset);
 267
 268                 if (device_format)
 269                         pos += scnprintf(buf + pos, bufsz - pos,
 270                                 "%02x", (val >> (8 * (3 - offset))) & 0xff);
 271                 else
 272                         pos += scnprintf(buf + pos, bufsz - pos,
 273                                 "%02x ", (val >> (8 * offset)) & 0xff);
 274
 275                 /* if all bytes processed, read the next u32 from sram */
 276                 if (++offset == 4) {
 277                         sram += 4;
 278                         offset = 0;
 279                         val = iwl_read_targ_mem(priv->trans, sram);
 280                 }
 281
 282                 /* put in extra spaces and split lines for human readability */
 283                 if (++i == 16) {
 284                         i = 0;
 285                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 286                 } else if (!(i & 7)) {
 287                         pos += scnprintf(buf + pos, bufsz - pos, "   ");
 288                 } else if (!(i & 3)) {
 289                         pos += scnprintf(buf + pos, bufsz - pos, " ");
 290                 }
 291         }
 292         if (i)
 293                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 294
 295         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 296         kfree(buf);
 297         return ret;
 298 }
 299
 300 static ssize_t iwl_dbgfs_sram_write(struct file *file,
 301                                         const char __user *user_buf,
 302                                         size_t count, loff_t *ppos)
 303 {
 304         struct iwl_priv *priv = file->private_data;
 305         char buf[64];
 306         int buf_size;
 307         u32 offset, len;
 308
 309         memset(buf, 0, sizeof(buf));
 310         buf_size = min(count, sizeof(buf) -  1);
 311         if (copy_from_user(buf, user_buf, buf_size))
 312                 return -EFAULT;
 313
 314         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 315                 priv->dbgfs_sram_offset = offset;
 316                 priv->dbgfs_sram_len = len;
 317         } else if (sscanf(buf, "%x", &offset) == 1) {
 318                 priv->dbgfs_sram_offset = offset;
 319                 priv->dbgfs_sram_len = -4;
 320         } else {
 321                 priv->dbgfs_sram_offset = 0;
 322                 priv->dbgfs_sram_len = 0;
 323         }
 324
 325         return count;
 326 }
 327
 328 static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
 329                                           char __user *user_buf,
 330                                           size_t count, loff_t *ppos)
 331 {
 332         struct iwl_priv *priv = file->private_data;
 333         const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN];
 334
 335         if (!priv->wowlan_sram)
 336                 return -ENODATA;
 337
 338         return simple_read_from_buffer(user_buf, count, ppos,
 339                                        priv->wowlan_sram,
 340                                        img->sec[IWL_UCODE_SECTION_DATA].len);
 341 }
 342 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 343                                         size_t count, loff_t *ppos)
 344 {
 345         struct iwl_priv *priv = file->private_data;
 346         struct iwl_station_entry *station;
 347         struct iwl_tid_data *tid_data;
 348         char *buf;
 349         int i, j, pos = 0;
 350         ssize_t ret;
 351         /* Add 30 for initial string */
 352         const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
 353
 354         buf = kmalloc(bufsz, GFP_KERNEL);
 355         if (!buf)
 356                 return -ENOMEM;
 357
 358         pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
 359                         priv->num_stations);
 360
 361         for (i = 0; i < IWLAGN_STATION_COUNT; i++) {
 362                 station = &priv->stations[i];
 363                 if (!station->used)
 364                         continue;
 365                 pos += scnprintf(buf + pos, bufsz - pos,
 366                                  "station %d - addr: %pM, flags: %#x\n",
 367                                  i, station->sta.sta.addr,
 368                                  station->sta.station_flags_msk);
 369                 pos += scnprintf(buf + pos, bufsz - pos,
 370                                 "TID seqno  next_rclmd "
 371                                 "rate_n_flags state txq\n");
 372
 373                 for (j = 0; j < IWL_MAX_TID_COUNT; j++) {
 374                         tid_data = &priv->tid_data[i][j];
 375                         pos += scnprintf(buf + pos, bufsz - pos,
 376                                 "%d:  0x%.4x 0x%.4x     0x%.8x   "
 377                                 "%d     %.2d",
 378                                 j, tid_data->seq_number,
 379                                 tid_data->next_reclaimed,
 380                                 tid_data->agg.rate_n_flags,
 381                                 tid_data->agg.state,
 382                                 tid_data->agg.txq_id);
 383
 384                         if (tid_data->agg.wait_for_ba)
 385                                 pos += scnprintf(buf + pos, bufsz - pos,
 386                                                  " - waitforba");
 387                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 388                 }
 389
 390                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 391         }
 392
 393         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 394         kfree(buf);
 395         return ret;
 396 }
 397
 398 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
 399                                        char __user *user_buf,
 400                                        size_t count,
 401                                        loff_t *ppos)
 402 {
 403         ssize_t ret;
 404         struct iwl_priv *priv = file->private_data;
 405         int pos = 0, ofs = 0, buf_size = 0;
 406         const u8 *ptr;
 407         char *buf;
 408         u16 eeprom_ver;
 409         size_t eeprom_len = priv->cfg->base_params->eeprom_size;
 410         buf_size = 4 * eeprom_len + 256;
 411
 412         if (eeprom_len % 16)
 413                 return -ENODATA;
 414
 415         ptr = priv->eeprom;
 416         if (!ptr)
 417                 return -ENOMEM;
 418
 419         /* 4 characters for byte 0xYY */
 420         buf = kzalloc(buf_size, GFP_KERNEL);
 421         if (!buf)
 422                 return -ENOMEM;
 423
 424         eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
 425         pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
 426                         "version: 0x%x\n",
 427                         (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
 428                          ? "OTP" : "EEPROM", eeprom_ver);
 429         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
 430                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
 431                 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
 432                                    buf_size - pos, 0);
 433                 pos += strlen(buf + pos);
 434                 if (buf_size - pos > 0)
 435                         buf[pos++] = '\n';
 436         }
 437
 438         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 439         kfree(buf);
 440         return ret;
 441 }
 442
 443 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 444                                        size_t count, loff_t *ppos)
 445 {
 446         struct iwl_priv *priv = file->private_data;
 447         struct ieee80211_channel *channels = NULL;
 448         const struct ieee80211_supported_band *supp_band = NULL;
 449         int pos = 0, i, bufsz = PAGE_SIZE;
 450         char *buf;
 451         ssize_t ret;
 452
 453         if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
 454                 return -EAGAIN;
 455
 456         buf = kzalloc(bufsz, GFP_KERNEL);
 457         if (!buf)
 458                 return -ENOMEM;
 459
 460         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
 461         if (supp_band) {
 462                 channels = supp_band->channels;
 463
 464                 pos += scnprintf(buf + pos, bufsz - pos,
 465                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
 466                                 supp_band->n_channels);
 467
 468                 for (i = 0; i < supp_band->n_channels; i++)
 469                         pos += scnprintf(buf + pos, bufsz - pos,
 470                                         "%d: %ddBm: BSS%s%s, %s.\n",
 471                                         channels[i].hw_value,
 472                                         channels[i].max_power,
 473                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 474                                         " (IEEE 802.11h required)" : "",
 475                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 476                                         || (channels[i].flags &
 477                                         IEEE80211_CHAN_RADAR)) ? "" :
 478                                         ", IBSS",
 479                                         channels[i].flags &
 480                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 481                                         "passive only" : "active/passive");
 482         }
 483         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
 484         if (supp_band) {
 485                 channels = supp_band->channels;
 486
 487                 pos += scnprintf(buf + pos, bufsz - pos,
 488                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
 489                                 supp_band->n_channels);
 490
 491                 for (i = 0; i < supp_band->n_channels; i++)
 492                         pos += scnprintf(buf + pos, bufsz - pos,
 493                                         "%d: %ddBm: BSS%s%s, %s.\n",
 494                                         channels[i].hw_value,
 495                                         channels[i].max_power,
 496                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 497                                         " (IEEE 802.11h required)" : "",
 498                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 499                                         || (channels[i].flags &
 500                                         IEEE80211_CHAN_RADAR)) ? "" :
 501                                         ", IBSS",
 502                                         channels[i].flags &
 503                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 504                                         "passive only" : "active/passive");
 505         }
 506         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 507         kfree(buf);
 508         return ret;
 509 }
 510
 511 static ssize_t iwl_dbgfs_status_read(struct file *file,
 512                                                 char __user *user_buf,
 513                                                 size_t count, loff_t *ppos) {
 514
 515         struct iwl_priv *priv = file->private_data;
 516         char buf[512];
 517         int pos = 0;
 518         const size_t bufsz = sizeof(buf);
 519
 520         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 521                 test_bit(STATUS_RF_KILL_HW, &priv->status));
 522         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 523                 test_bit(STATUS_CT_KILL, &priv->status));
 524         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 525                 test_bit(STATUS_ALIVE, &priv->status));
 526         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 527                 test_bit(STATUS_READY, &priv->status));
 528         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
 529                 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
 530         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 531                 test_bit(STATUS_EXIT_PENDING, &priv->status));
 532         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 533                 test_bit(STATUS_STATISTICS, &priv->status));
 534         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 535                 test_bit(STATUS_SCANNING, &priv->status));
 536         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 537                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
 538         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 539                 test_bit(STATUS_SCAN_HW, &priv->status));
 540         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 541                 test_bit(STATUS_POWER_PMI, &priv->status));
 542         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 543                 test_bit(STATUS_FW_ERROR, &priv->status));
 544         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 545 }
 546
 547 static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file,
 548                                         char __user *user_buf,
 549                                         size_t count, loff_t *ppos) {
 550
 551         struct iwl_priv *priv = file->private_data;
 552
 553         int pos = 0;
 554         int cnt = 0;
 555         char *buf;
 556         int bufsz = 24 * 64; /* 24 items * 64 char per item */
 557         ssize_t ret;
 558
 559         buf = kzalloc(bufsz, GFP_KERNEL);
 560         if (!buf)
 561                 return -ENOMEM;
 562
 563         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 564                 if (priv->rx_handlers_stats[cnt] > 0)
 565                         pos += scnprintf(buf + pos, bufsz - pos,
 566                                 "\tRx handler[%36s]:\t\t %u\n",
 567                                 iwl_dvm_get_cmd_string(cnt),
 568                                 priv->rx_handlers_stats[cnt]);
 569         }
 570
 571         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 572         kfree(buf);
 573         return ret;
 574 }
 575
 576 static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
 577                                          const char __user *user_buf,
 578                                          size_t count, loff_t *ppos)
 579 {
 580         struct iwl_priv *priv = file->private_data;
 581
 582         char buf[8];
 583         int buf_size;
 584         u32 reset_flag;
 585
 586         memset(buf, 0, sizeof(buf));
 587         buf_size = min(count, sizeof(buf) -  1);
 588         if (copy_from_user(buf, user_buf, buf_size))
 589                 return -EFAULT;
 590         if (sscanf(buf, "%x", &reset_flag) != 1)
 591                 return -EFAULT;
 592         if (reset_flag == 0)
 593                 memset(&priv->rx_handlers_stats[0], 0,
 594                         sizeof(priv->rx_handlers_stats));
 595
 596         return count;
 597 }
 598
 599 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 600                                        size_t count, loff_t *ppos)
 601 {
 602         struct iwl_priv *priv = file->private_data;
 603         struct iwl_rxon_context *ctx;
 604         int pos = 0, i;
 605         char buf[256 * NUM_IWL_RXON_CTX];
 606         const size_t bufsz = sizeof(buf);
 607
 608         for_each_context(priv, ctx) {
 609                 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
 610                                  ctx->ctxid);
 611                 for (i = 0; i < AC_NUM; i++) {
 612                         pos += scnprintf(buf + pos, bufsz - pos,
 613                                 "\tcw_min\tcw_max\taifsn\ttxop\n");
 614                         pos += scnprintf(buf + pos, bufsz - pos,
 615                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
 616                                 ctx->qos_data.def_qos_parm.ac[i].cw_min,
 617                                 ctx->qos_data.def_qos_parm.ac[i].cw_max,
 618                                 ctx->qos_data.def_qos_parm.ac[i].aifsn,
 619                                 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
 620                 }
 621                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 622         }
 623         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 624 }
 625
 626 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 627                                 char __user *user_buf,
 628                                 size_t count, loff_t *ppos)
 629 {
 630         struct iwl_priv *priv = file->private_data;
 631         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 632         struct iwl_tt_restriction *restriction;
 633         char buf[100];
 634         int pos = 0;
 635         const size_t bufsz = sizeof(buf);
 636
 637         pos += scnprintf(buf + pos, bufsz - pos,
 638                         "Thermal Throttling Mode: %s\n",
 639                         tt->advanced_tt ? "Advance" : "Legacy");
 640         pos += scnprintf(buf + pos, bufsz - pos,
 641                         "Thermal Throttling State: %d\n",
 642                         tt->state);
 643         if (tt->advanced_tt) {
 644                 restriction = tt->restriction + tt->state;
 645                 pos += scnprintf(buf + pos, bufsz - pos,
 646                                 "Tx mode: %d\n",
 647                                 restriction->tx_stream);
 648                 pos += scnprintf(buf + pos, bufsz - pos,
 649                                 "Rx mode: %d\n",
 650                                 restriction->rx_stream);
 651                 pos += scnprintf(buf + pos, bufsz - pos,
 652                                 "HT mode: %d\n",
 653                                 restriction->is_ht);
 654         }
 655         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 656 }
 657
 658 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 659                                          const char __user *user_buf,
 660                                          size_t count, loff_t *ppos)
 661 {
 662         struct iwl_priv *priv = file->private_data;
 663         char buf[8];
 664         int buf_size;
 665         int ht40;
 666
 667         memset(buf, 0, sizeof(buf));
 668         buf_size = min(count, sizeof(buf) -  1);
 669         if (copy_from_user(buf, user_buf, buf_size))
 670                 return -EFAULT;
 671         if (sscanf(buf, "%d", &ht40) != 1)
 672                 return -EFAULT;
 673         if (!iwl_is_any_associated(priv))
 674                 priv->disable_ht40 = ht40 ? true : false;
 675         else
 676                 return -EINVAL;
 677
 678         return count;
 679 }
 680
 681 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 682                                          char __user *user_buf,
 683                                          size_t count, loff_t *ppos)
 684 {
 685         struct iwl_priv *priv = file->private_data;
 686         char buf[100];
 687         int pos = 0;
 688         const size_t bufsz = sizeof(buf);
 689
 690         pos += scnprintf(buf + pos, bufsz - pos,
 691                         "11n 40MHz Mode: %s\n",
 692                         priv->disable_ht40 ? "Disabled" : "Enabled");
 693         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 694 }
 695
 696 static ssize_t iwl_dbgfs_temperature_read(struct file *file,
 697                                          char __user *user_buf,
 698                                          size_t count, loff_t *ppos)
 699 {
 700         struct iwl_priv *priv = file->private_data;
 701         char buf[8];
 702         int pos = 0;
 703         const size_t bufsz = sizeof(buf);
 704
 705         pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->temperature);
 706         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 707 }
 708
 709
 710 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 711                                                     const char __user *user_buf,
 712                                                     size_t count, loff_t *ppos)
 713 {
 714         struct iwl_priv *priv = file->private_data;
 715         char buf[8];
 716         int buf_size;
 717         int value;
 718
 719         memset(buf, 0, sizeof(buf));
 720         buf_size = min(count, sizeof(buf) -  1);
 721         if (copy_from_user(buf, user_buf, buf_size))
 722                 return -EFAULT;
 723
 724         if (sscanf(buf, "%d", &value) != 1)
 725                 return -EINVAL;
 726
 727         /*
 728          * Our users expect 0 to be "CAM", but 0 isn't actually
 729          * valid here. However, let's not confuse them and present
 730          * IWL_POWER_INDEX_1 as "1", not "0".
 731          */
 732         if (value == 0)
 733                 return -EINVAL;
 734         else if (value > 0)
 735                 value -= 1;
 736
 737         if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 738                 return -EINVAL;
 739
 740         if (!iwl_is_ready_rf(priv))
 741                 return -EAGAIN;
 742
 743         priv->power_data.debug_sleep_level_override = value;
 744
 745         mutex_lock(&priv->mutex);
 746         iwl_power_update_mode(priv, true);
 747         mutex_unlock(&priv->mutex);
 748
 749         return count;
 750 }
 751
 752 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 753                                                    char __user *user_buf,
 754                                                    size_t count, loff_t *ppos)
 755 {
 756         struct iwl_priv *priv = file->private_data;
 757         char buf[10];
 758         int pos, value;
 759         const size_t bufsz = sizeof(buf);
 760
 761         /* see the write function */
 762         value = priv->power_data.debug_sleep_level_override;
 763         if (value >= 0)
 764                 value += 1;
 765
 766         pos = scnprintf(buf, bufsz, "%d\n", value);
 767         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 768 }
 769
 770 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 771                                                     char __user *user_buf,
 772                                                     size_t count, loff_t *ppos)
 773 {
 774         struct iwl_priv *priv = file->private_data;
 775         char buf[200];
 776         int pos = 0, i;
 777         const size_t bufsz = sizeof(buf);
 778         struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 779
 780         pos += scnprintf(buf + pos, bufsz - pos,
 781                          "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 782         pos += scnprintf(buf + pos, bufsz - pos,
 783                          "RX/TX timeout: %d/%d usec\n",
 784                          le32_to_cpu(cmd->rx_data_timeout),
 785                          le32_to_cpu(cmd->tx_data_timeout));
 786         for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 787                 pos += scnprintf(buf + pos, bufsz - pos,
 788                                  "sleep_interval[%d]: %d\n", i,
 789                                  le32_to_cpu(cmd->sleep_interval[i]));
 790
 791         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 792 }
 793
 794 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 795 DEBUGFS_READ_FILE_OPS(wowlan_sram);
 796 DEBUGFS_READ_FILE_OPS(nvm);
 797 DEBUGFS_READ_FILE_OPS(stations);
 798 DEBUGFS_READ_FILE_OPS(channels);
 799 DEBUGFS_READ_FILE_OPS(status);
 800 DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers);
 801 DEBUGFS_READ_FILE_OPS(qos);
 802 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 803 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 804 DEBUGFS_READ_FILE_OPS(temperature);
 805 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 806 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 807
 808 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
 809                                          char __user *user_buf,
 810                                          size_t count, loff_t *ppos)
 811 {
 812         struct iwl_priv *priv = file->private_data;
 813         int pos = 0, ofs = 0;
 814         int cnt = 0, entry;
 815
 816         char *buf;
 817         int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
 818                 (priv->cfg->base_params->num_of_queues * 32 * 8) + 400;
 819         const u8 *ptr;
 820         ssize_t ret;
 821
 822         buf = kzalloc(bufsz, GFP_KERNEL);
 823         if (!buf)
 824                 return -ENOMEM;
 825         if (priv->tx_traffic && iwl_have_debug_level(IWL_DL_TX)) {
 826                 ptr = priv->tx_traffic;
 827                 pos += scnprintf(buf + pos, bufsz - pos,
 828                                 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
 829                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 830                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 831                              entry++,  ofs += 16) {
 832                                 pos += scnprintf(buf + pos, bufsz - pos,
 833                                                 "0x%.4x ", ofs);
 834                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 835                                                    buf + pos, bufsz - pos, 0);
 836                                 pos += strlen(buf + pos);
 837                                 if (bufsz - pos > 0)
 838                                         buf[pos++] = '\n';
 839                         }
 840                 }
 841         }
 842
 843         if (priv->rx_traffic && iwl_have_debug_level(IWL_DL_RX)) {
 844                 ptr = priv->rx_traffic;
 845                 pos += scnprintf(buf + pos, bufsz - pos,
 846                                 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
 847                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 848                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 849                              entry++,  ofs += 16) {
 850                                 pos += scnprintf(buf + pos, bufsz - pos,
 851                                                 "0x%.4x ", ofs);
 852                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 853                                                    buf + pos, bufsz - pos, 0);
 854                                 pos += strlen(buf + pos);
 855                                 if (bufsz - pos > 0)
 856                                         buf[pos++] = '\n';
 857                         }
 858                 }
 859         }
 860
 861         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 862         kfree(buf);
 863         return ret;
 864 }
 865
 866 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
 867                                          const char __user *user_buf,
 868                                          size_t count, loff_t *ppos)
 869 {
 870         struct iwl_priv *priv = file->private_data;
 871         char buf[8];
 872         int buf_size;
 873         int traffic_log;
 874
 875         memset(buf, 0, sizeof(buf));
 876         buf_size = min(count, sizeof(buf) -  1);
 877         if (copy_from_user(buf, user_buf, buf_size))
 878                 return -EFAULT;
 879         if (sscanf(buf, "%d", &traffic_log) != 1)
 880                 return -EFAULT;
 881         if (traffic_log == 0)
 882                 iwl_reset_traffic_log(priv);
 883
 884         return count;
 885 }
 886
 887 static const char *fmt_value = "  %-30s %10u\n";
 888 static const char *fmt_hex   = "  %-30s       0x%02X\n";
 889 static const char *fmt_table = "  %-30s %10u  %10u  %10u  %10u\n";
 890 static const char *fmt_header =
 891         "%-32s    current  cumulative       delta         max\n";
 892
 893 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
 894 {
 895         int p = 0;
 896         u32 flag;
 897
 898         lockdep_assert_held(&priv->statistics.lock);
 899
 900         flag = le32_to_cpu(priv->statistics.flag);
 901
 902         p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
 903         if (flag & UCODE_STATISTICS_CLEAR_MSK)
 904                 p += scnprintf(buf + p, bufsz - p,
 905                 "\tStatistics have been cleared\n");
 906         p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
 907                 (flag & UCODE_STATISTICS_FREQUENCY_MSK)
 908                 ? "2.4 GHz" : "5.2 GHz");
 909         p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
 910                 (flag & UCODE_STATISTICS_NARROW_BAND_MSK)
 911                  ? "enabled" : "disabled");
 912
 913         return p;
 914 }
 915
 916 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
 917                                         char __user *user_buf,
 918                                         size_t count, loff_t *ppos)
 919 {
 920         struct iwl_priv *priv = file->private_data;
 921         int pos = 0;
 922         char *buf;
 923         int bufsz = sizeof(struct statistics_rx_phy) * 40 +
 924                     sizeof(struct statistics_rx_non_phy) * 40 +
 925                     sizeof(struct statistics_rx_ht_phy) * 40 + 400;
 926         ssize_t ret;
 927         struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
 928         struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
 929         struct statistics_rx_non_phy *general, *accum_general;
 930         struct statistics_rx_non_phy *delta_general, *max_general;
 931         struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
 932
 933         if (!iwl_is_alive(priv))
 934                 return -EAGAIN;
 935
 936         buf = kzalloc(bufsz, GFP_KERNEL);
 937         if (!buf)
 938                 return -ENOMEM;
 939
 940         /*
 941          * the statistic information display here is based on
 942          * the last statistics notification from uCode
 943          * might not reflect the current uCode activity
 944          */
 945         spin_lock_bh(&priv->statistics.lock);
 946         ofdm = &priv->statistics.rx_ofdm;
 947         cck = &priv->statistics.rx_cck;
 948         general = &priv->statistics.rx_non_phy;
 949         ht = &priv->statistics.rx_ofdm_ht;
 950         accum_ofdm = &priv->accum_stats.rx_ofdm;
 951         accum_cck = &priv->accum_stats.rx_cck;
 952         accum_general = &priv->accum_stats.rx_non_phy;
 953         accum_ht = &priv->accum_stats.rx_ofdm_ht;
 954         delta_ofdm = &priv->delta_stats.rx_ofdm;
 955         delta_cck = &priv->delta_stats.rx_cck;
 956         delta_general = &priv->delta_stats.rx_non_phy;
 957         delta_ht = &priv->delta_stats.rx_ofdm_ht;
 958         max_ofdm = &priv->max_delta_stats.rx_ofdm;
 959         max_cck = &priv->max_delta_stats.rx_cck;
 960         max_general = &priv->max_delta_stats.rx_non_phy;
 961         max_ht = &priv->max_delta_stats.rx_ofdm_ht;
 962
 963         pos += iwl_statistics_flag(priv, buf, bufsz);
 964         pos += scnprintf(buf + pos, bufsz - pos,
 965                          fmt_header, "Statistics_Rx - OFDM:");
 966         pos += scnprintf(buf + pos, bufsz - pos,
 967                          fmt_table, "ina_cnt:",
 968                          le32_to_cpu(ofdm->ina_cnt),
 969                          accum_ofdm->ina_cnt,
 970                          delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
 971         pos += scnprintf(buf + pos, bufsz - pos,
 972                          fmt_table, "fina_cnt:",
 973                          le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
 974                          delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
 975         pos += scnprintf(buf + pos, bufsz - pos,
 976                          fmt_table, "plcp_err:",
 977                          le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
 978                          delta_ofdm->plcp_err, max_ofdm->plcp_err);
 979         pos += scnprintf(buf + pos, bufsz - pos,
 980                          fmt_table, "crc32_err:",
 981                          le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
 982                          delta_ofdm->crc32_err, max_ofdm->crc32_err);
 983         pos += scnprintf(buf + pos, bufsz - pos,
 984                          fmt_table, "overrun_err:",
 985                          le32_to_cpu(ofdm->overrun_err),
 986                          accum_ofdm->overrun_err, delta_ofdm->overrun_err,
 987                          max_ofdm->overrun_err);
 988         pos += scnprintf(buf + pos, bufsz - pos,
 989                          fmt_table, "early_overrun_err:",
 990                          le32_to_cpu(ofdm->early_overrun_err),
 991                          accum_ofdm->early_overrun_err,
 992                          delta_ofdm->early_overrun_err,
 993                          max_ofdm->early_overrun_err);
 994         pos += scnprintf(buf + pos, bufsz - pos,
 995                          fmt_table, "crc32_good:",
 996                          le32_to_cpu(ofdm->crc32_good),
 997                          accum_ofdm->crc32_good, delta_ofdm->crc32_good,
 998                          max_ofdm->crc32_good);
 999         pos += scnprintf(buf + pos, bufsz - pos,
1000                          fmt_table, "false_alarm_cnt:",
1001                          le32_to_cpu(ofdm->false_alarm_cnt),
1002                          accum_ofdm->false_alarm_cnt,
1003                          delta_ofdm->false_alarm_cnt,
1004                          max_ofdm->false_alarm_cnt);
1005         pos += scnprintf(buf + pos, bufsz - pos,
1006                          fmt_table, "fina_sync_err_cnt:",
1007                          le32_to_cpu(ofdm->fina_sync_err_cnt),
1008                          accum_ofdm->fina_sync_err_cnt,
1009                          delta_ofdm->fina_sync_err_cnt,
1010                          max_ofdm->fina_sync_err_cnt);
1011         pos += scnprintf(buf + pos, bufsz - pos,
1012                          fmt_table, "sfd_timeout:",
1013                          le32_to_cpu(ofdm->sfd_timeout),
1014                          accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
1015                          max_ofdm->sfd_timeout);
1016         pos += scnprintf(buf + pos, bufsz - pos,
1017                          fmt_table, "fina_timeout:",
1018                          le32_to_cpu(ofdm->fina_timeout),
1019                          accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
1020                          max_ofdm->fina_timeout);
1021         pos += scnprintf(buf + pos, bufsz - pos,
1022                          fmt_table, "unresponded_rts:",
1023                          le32_to_cpu(ofdm->unresponded_rts),
1024                          accum_ofdm->unresponded_rts,
1025                          delta_ofdm->unresponded_rts,
1026                          max_ofdm->unresponded_rts);
1027         pos += scnprintf(buf + pos, bufsz - pos,
1028                          fmt_table, "rxe_frame_lmt_ovrun:",
1029                          le32_to_cpu(ofdm->rxe_frame_limit_overrun),
1030                          accum_ofdm->rxe_frame_limit_overrun,
1031                          delta_ofdm->rxe_frame_limit_overrun,
1032                          max_ofdm->rxe_frame_limit_overrun);
1033         pos += scnprintf(buf + pos, bufsz - pos,
1034                          fmt_table, "sent_ack_cnt:",
1035                          le32_to_cpu(ofdm->sent_ack_cnt),
1036                          accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
1037                          max_ofdm->sent_ack_cnt);
1038         pos += scnprintf(buf + pos, bufsz - pos,
1039                          fmt_table, "sent_cts_cnt:",
1040                          le32_to_cpu(ofdm->sent_cts_cnt),
1041                          accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
1042                          max_ofdm->sent_cts_cnt);
1043         pos += scnprintf(buf + pos, bufsz - pos,
1044                          fmt_table, "sent_ba_rsp_cnt:",
1045                          le32_to_cpu(ofdm->sent_ba_rsp_cnt),
1046                          accum_ofdm->sent_ba_rsp_cnt,
1047                          delta_ofdm->sent_ba_rsp_cnt,
1048                          max_ofdm->sent_ba_rsp_cnt);
1049         pos += scnprintf(buf + pos, bufsz - pos,
1050                          fmt_table, "dsp_self_kill:",
1051                          le32_to_cpu(ofdm->dsp_self_kill),
1052                          accum_ofdm->dsp_self_kill,
1053                          delta_ofdm->dsp_self_kill,
1054                          max_ofdm->dsp_self_kill);
1055         pos += scnprintf(buf + pos, bufsz - pos,
1056                          fmt_table, "mh_format_err:",
1057                          le32_to_cpu(ofdm->mh_format_err),
1058                          accum_ofdm->mh_format_err,
1059                          delta_ofdm->mh_format_err,
1060                          max_ofdm->mh_format_err);
1061         pos += scnprintf(buf + pos, bufsz - pos,
1062                          fmt_table, "re_acq_main_rssi_sum:",
1063                          le32_to_cpu(ofdm->re_acq_main_rssi_sum),
1064                          accum_ofdm->re_acq_main_rssi_sum,
1065                          delta_ofdm->re_acq_main_rssi_sum,
1066                          max_ofdm->re_acq_main_rssi_sum);
1067
1068         pos += scnprintf(buf + pos, bufsz - pos,
1069                          fmt_header, "Statistics_Rx - CCK:");
1070         pos += scnprintf(buf + pos, bufsz - pos,
1071                          fmt_table, "ina_cnt:",
1072                          le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
1073                          delta_cck->ina_cnt, max_cck->ina_cnt);
1074         pos += scnprintf(buf + pos, bufsz - pos,
1075                          fmt_table, "fina_cnt:",
1076                          le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
1077                          delta_cck->fina_cnt, max_cck->fina_cnt);
1078         pos += scnprintf(buf + pos, bufsz - pos,
1079                          fmt_table, "plcp_err:",
1080                          le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
1081                          delta_cck->plcp_err, max_cck->plcp_err);
1082         pos += scnprintf(buf + pos, bufsz - pos,
1083                          fmt_table, "crc32_err:",
1084                          le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
1085                          delta_cck->crc32_err, max_cck->crc32_err);
1086         pos += scnprintf(buf + pos, bufsz - pos,
1087                          fmt_table, "overrun_err:",
1088                          le32_to_cpu(cck->overrun_err),
1089                          accum_cck->overrun_err, delta_cck->overrun_err,
1090                          max_cck->overrun_err);
1091         pos += scnprintf(buf + pos, bufsz - pos,
1092                          fmt_table, "early_overrun_err:",
1093                          le32_to_cpu(cck->early_overrun_err),
1094                          accum_cck->early_overrun_err,
1095                          delta_cck->early_overrun_err,
1096                          max_cck->early_overrun_err);
1097         pos += scnprintf(buf + pos, bufsz - pos,
1098                          fmt_table, "crc32_good:",
1099                          le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
1100                          delta_cck->crc32_good, max_cck->crc32_good);
1101         pos += scnprintf(buf + pos, bufsz - pos,
1102                          fmt_table, "false_alarm_cnt:",
1103                          le32_to_cpu(cck->false_alarm_cnt),
1104                          accum_cck->false_alarm_cnt,
1105                          delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
1106         pos += scnprintf(buf + pos, bufsz - pos,
1107                          fmt_table, "fina_sync_err_cnt:",
1108                          le32_to_cpu(cck->fina_sync_err_cnt),
1109                          accum_cck->fina_sync_err_cnt,
1110                          delta_cck->fina_sync_err_cnt,
1111                          max_cck->fina_sync_err_cnt);
1112         pos += scnprintf(buf + pos, bufsz - pos,
1113                          fmt_table, "sfd_timeout:",
1114                          le32_to_cpu(cck->sfd_timeout),
1115                          accum_cck->sfd_timeout, delta_cck->sfd_timeout,
1116                          max_cck->sfd_timeout);
1117         pos += scnprintf(buf + pos, bufsz - pos,
1118                          fmt_table, "fina_timeout:",
1119                          le32_to_cpu(cck->fina_timeout),
1120                          accum_cck->fina_timeout, delta_cck->fina_timeout,
1121                          max_cck->fina_timeout);
1122         pos += scnprintf(buf + pos, bufsz - pos,
1123                          fmt_table, "unresponded_rts:",
1124                          le32_to_cpu(cck->unresponded_rts),
1125                          accum_cck->unresponded_rts, delta_cck->unresponded_rts,
1126                          max_cck->unresponded_rts);
1127         pos += scnprintf(buf + pos, bufsz - pos,
1128                          fmt_table, "rxe_frame_lmt_ovrun:",
1129                          le32_to_cpu(cck->rxe_frame_limit_overrun),
1130                          accum_cck->rxe_frame_limit_overrun,
1131                          delta_cck->rxe_frame_limit_overrun,
1132                          max_cck->rxe_frame_limit_overrun);
1133         pos += scnprintf(buf + pos, bufsz - pos,
1134                          fmt_table, "sent_ack_cnt:",
1135                          le32_to_cpu(cck->sent_ack_cnt),
1136                          accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
1137                          max_cck->sent_ack_cnt);
1138         pos += scnprintf(buf + pos, bufsz - pos,
1139                          fmt_table, "sent_cts_cnt:",
1140                          le32_to_cpu(cck->sent_cts_cnt),
1141                          accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
1142                          max_cck->sent_cts_cnt);
1143         pos += scnprintf(buf + pos, bufsz - pos,
1144                          fmt_table, "sent_ba_rsp_cnt:",
1145                          le32_to_cpu(cck->sent_ba_rsp_cnt),
1146                          accum_cck->sent_ba_rsp_cnt,
1147                          delta_cck->sent_ba_rsp_cnt,
1148                          max_cck->sent_ba_rsp_cnt);
1149         pos += scnprintf(buf + pos, bufsz - pos,
1150                          fmt_table, "dsp_self_kill:",
1151                          le32_to_cpu(cck->dsp_self_kill),
1152                          accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
1153                          max_cck->dsp_self_kill);
1154         pos += scnprintf(buf + pos, bufsz - pos,
1155                          fmt_table, "mh_format_err:",
1156                          le32_to_cpu(cck->mh_format_err),
1157                          accum_cck->mh_format_err, delta_cck->mh_format_err,
1158                          max_cck->mh_format_err);
1159         pos += scnprintf(buf + pos, bufsz - pos,
1160                          fmt_table, "re_acq_main_rssi_sum:",
1161                          le32_to_cpu(cck->re_acq_main_rssi_sum),
1162                          accum_cck->re_acq_main_rssi_sum,
1163                          delta_cck->re_acq_main_rssi_sum,
1164                          max_cck->re_acq_main_rssi_sum);
1165
1166         pos += scnprintf(buf + pos, bufsz - pos,
1167                          fmt_header, "Statistics_Rx - GENERAL:");
1168         pos += scnprintf(buf + pos, bufsz - pos,
1169                          fmt_table, "bogus_cts:",
1170                          le32_to_cpu(general->bogus_cts),
1171                          accum_general->bogus_cts, delta_general->bogus_cts,
1172                          max_general->bogus_cts);
1173         pos += scnprintf(buf + pos, bufsz - pos,
1174                          fmt_table, "bogus_ack:",
1175                          le32_to_cpu(general->bogus_ack),
1176                          accum_general->bogus_ack, delta_general->bogus_ack,
1177                          max_general->bogus_ack);
1178         pos += scnprintf(buf + pos, bufsz - pos,
1179                          fmt_table, "non_bssid_frames:",
1180                          le32_to_cpu(general->non_bssid_frames),
1181                          accum_general->non_bssid_frames,
1182                          delta_general->non_bssid_frames,
1183                          max_general->non_bssid_frames);
1184         pos += scnprintf(buf + pos, bufsz - pos,
1185                          fmt_table, "filtered_frames:",
1186                          le32_to_cpu(general->filtered_frames),
1187                          accum_general->filtered_frames,
1188                          delta_general->filtered_frames,
1189                          max_general->filtered_frames);
1190         pos += scnprintf(buf + pos, bufsz - pos,
1191                          fmt_table, "non_channel_beacons:",
1192                          le32_to_cpu(general->non_channel_beacons),
1193                          accum_general->non_channel_beacons,
1194                          delta_general->non_channel_beacons,
1195                          max_general->non_channel_beacons);
1196         pos += scnprintf(buf + pos, bufsz - pos,
1197                          fmt_table, "channel_beacons:",
1198                          le32_to_cpu(general->channel_beacons),
1199                          accum_general->channel_beacons,
1200                          delta_general->channel_beacons,
1201                          max_general->channel_beacons);
1202         pos += scnprintf(buf + pos, bufsz - pos,
1203                          fmt_table, "num_missed_bcon:",
1204                          le32_to_cpu(general->num_missed_bcon),
1205                          accum_general->num_missed_bcon,
1206                          delta_general->num_missed_bcon,
1207                          max_general->num_missed_bcon);
1208         pos += scnprintf(buf + pos, bufsz - pos,
1209                          fmt_table, "adc_rx_saturation_time:",
1210                          le32_to_cpu(general->adc_rx_saturation_time),
1211                          accum_general->adc_rx_saturation_time,
1212                          delta_general->adc_rx_saturation_time,
1213                          max_general->adc_rx_saturation_time);
1214         pos += scnprintf(buf + pos, bufsz - pos,
1215                          fmt_table, "ina_detect_search_tm:",
1216                          le32_to_cpu(general->ina_detection_search_time),
1217                          accum_general->ina_detection_search_time,
1218                          delta_general->ina_detection_search_time,
1219                          max_general->ina_detection_search_time);
1220         pos += scnprintf(buf + pos, bufsz - pos,
1221                          fmt_table, "beacon_silence_rssi_a:",
1222                          le32_to_cpu(general->beacon_silence_rssi_a),
1223                          accum_general->beacon_silence_rssi_a,
1224                          delta_general->beacon_silence_rssi_a,
1225                          max_general->beacon_silence_rssi_a);
1226         pos += scnprintf(buf + pos, bufsz - pos,
1227                          fmt_table, "beacon_silence_rssi_b:",
1228                          le32_to_cpu(general->beacon_silence_rssi_b),
1229                          accum_general->beacon_silence_rssi_b,
1230                          delta_general->beacon_silence_rssi_b,
1231                          max_general->beacon_silence_rssi_b);
1232         pos += scnprintf(buf + pos, bufsz - pos,
1233                          fmt_table, "beacon_silence_rssi_c:",
1234                          le32_to_cpu(general->beacon_silence_rssi_c),
1235                          accum_general->beacon_silence_rssi_c,
1236                          delta_general->beacon_silence_rssi_c,
1237                          max_general->beacon_silence_rssi_c);
1238         pos += scnprintf(buf + pos, bufsz - pos,
1239                          fmt_table, "interference_data_flag:",
1240                          le32_to_cpu(general->interference_data_flag),
1241                          accum_general->interference_data_flag,
1242                          delta_general->interference_data_flag,
1243                          max_general->interference_data_flag);
1244         pos += scnprintf(buf + pos, bufsz - pos,
1245                          fmt_table, "channel_load:",
1246                          le32_to_cpu(general->channel_load),
1247                          accum_general->channel_load,
1248                          delta_general->channel_load,
1249                          max_general->channel_load);
1250         pos += scnprintf(buf + pos, bufsz - pos,
1251                          fmt_table, "dsp_false_alarms:",
1252                          le32_to_cpu(general->dsp_false_alarms),
1253                          accum_general->dsp_false_alarms,
1254                          delta_general->dsp_false_alarms,
1255                          max_general->dsp_false_alarms);
1256         pos += scnprintf(buf + pos, bufsz - pos,
1257                          fmt_table, "beacon_rssi_a:",
1258                          le32_to_cpu(general->beacon_rssi_a),
1259                          accum_general->beacon_rssi_a,
1260                          delta_general->beacon_rssi_a,
1261                          max_general->beacon_rssi_a);
1262         pos += scnprintf(buf + pos, bufsz - pos,
1263                          fmt_table, "beacon_rssi_b:",
1264                          le32_to_cpu(general->beacon_rssi_b),
1265                          accum_general->beacon_rssi_b,
1266                          delta_general->beacon_rssi_b,
1267                          max_general->beacon_rssi_b);
1268         pos += scnprintf(buf + pos, bufsz - pos,
1269                          fmt_table, "beacon_rssi_c:",
1270                          le32_to_cpu(general->beacon_rssi_c),
1271                          accum_general->beacon_rssi_c,
1272                          delta_general->beacon_rssi_c,
1273                          max_general->beacon_rssi_c);
1274         pos += scnprintf(buf + pos, bufsz - pos,
1275                          fmt_table, "beacon_energy_a:",
1276                          le32_to_cpu(general->beacon_energy_a),
1277                          accum_general->beacon_energy_a,
1278                          delta_general->beacon_energy_a,
1279                          max_general->beacon_energy_a);
1280         pos += scnprintf(buf + pos, bufsz - pos,
1281                          fmt_table, "beacon_energy_b:",
1282                          le32_to_cpu(general->beacon_energy_b),
1283                          accum_general->beacon_energy_b,
1284                          delta_general->beacon_energy_b,
1285                          max_general->beacon_energy_b);
1286         pos += scnprintf(buf + pos, bufsz - pos,
1287                          fmt_table, "beacon_energy_c:",
1288                          le32_to_cpu(general->beacon_energy_c),
1289                          accum_general->beacon_energy_c,
1290                          delta_general->beacon_energy_c,
1291                          max_general->beacon_energy_c);
1292
1293         pos += scnprintf(buf + pos, bufsz - pos,
1294                          fmt_header, "Statistics_Rx - OFDM_HT:");
1295         pos += scnprintf(buf + pos, bufsz - pos,
1296                          fmt_table, "plcp_err:",
1297                          le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1298                          delta_ht->plcp_err, max_ht->plcp_err);
1299         pos += scnprintf(buf + pos, bufsz - pos,
1300                          fmt_table, "overrun_err:",
1301                          le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1302                          delta_ht->overrun_err, max_ht->overrun_err);
1303         pos += scnprintf(buf + pos, bufsz - pos,
1304                          fmt_table, "early_overrun_err:",
1305                          le32_to_cpu(ht->early_overrun_err),
1306                          accum_ht->early_overrun_err,
1307                          delta_ht->early_overrun_err,
1308                          max_ht->early_overrun_err);
1309         pos += scnprintf(buf + pos, bufsz - pos,
1310                          fmt_table, "crc32_good:",
1311                          le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1312                          delta_ht->crc32_good, max_ht->crc32_good);
1313         pos += scnprintf(buf + pos, bufsz - pos,
1314                          fmt_table, "crc32_err:",
1315                          le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1316                          delta_ht->crc32_err, max_ht->crc32_err);
1317         pos += scnprintf(buf + pos, bufsz - pos,
1318                          fmt_table, "mh_format_err:",
1319                          le32_to_cpu(ht->mh_format_err),
1320                          accum_ht->mh_format_err,
1321                          delta_ht->mh_format_err, max_ht->mh_format_err);
1322         pos += scnprintf(buf + pos, bufsz - pos,
1323                          fmt_table, "agg_crc32_good:",
1324                          le32_to_cpu(ht->agg_crc32_good),
1325                          accum_ht->agg_crc32_good,
1326                          delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1327         pos += scnprintf(buf + pos, bufsz - pos,
1328                          fmt_table, "agg_mpdu_cnt:",
1329                          le32_to_cpu(ht->agg_mpdu_cnt),
1330                          accum_ht->agg_mpdu_cnt,
1331                          delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1332         pos += scnprintf(buf + pos, bufsz - pos,
1333                          fmt_table, "agg_cnt:",
1334                          le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1335                          delta_ht->agg_cnt, max_ht->agg_cnt);
1336         pos += scnprintf(buf + pos, bufsz - pos,
1337                          fmt_table, "unsupport_mcs:",
1338                          le32_to_cpu(ht->unsupport_mcs),
1339                          accum_ht->unsupport_mcs,
1340                          delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1341
1342         spin_unlock_bh(&priv->statistics.lock);
1343
1344         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1345         kfree(buf);
1346         return ret;
1347 }
1348
1349 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1350                                         char __user *user_buf,
1351                                         size_t count, loff_t *ppos)
1352 {
1353         struct iwl_priv *priv = file->private_data;
1354         int pos = 0;
1355         char *buf;
1356         int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1357         ssize_t ret;
1358         struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1359
1360         if (!iwl_is_alive(priv))
1361                 return -EAGAIN;
1362
1363         buf = kzalloc(bufsz, GFP_KERNEL);
1364         if (!buf)
1365                 return -ENOMEM;
1366
1367         /* the statistic information display here is based on
1368          * the last statistics notification from uCode
1369          * might not reflect the current uCode activity
1370          */
1371         spin_lock_bh(&priv->statistics.lock);
1372
1373         tx = &priv->statistics.tx;
1374         accum_tx = &priv->accum_stats.tx;
1375         delta_tx = &priv->delta_stats.tx;
1376         max_tx = &priv->max_delta_stats.tx;
1377
1378         pos += iwl_statistics_flag(priv, buf, bufsz);
1379         pos += scnprintf(buf + pos, bufsz - pos,
1380                          fmt_header, "Statistics_Tx:");
1381         pos += scnprintf(buf + pos, bufsz - pos,
1382                          fmt_table, "preamble:",
1383                          le32_to_cpu(tx->preamble_cnt),
1384                          accum_tx->preamble_cnt,
1385                          delta_tx->preamble_cnt, max_tx->preamble_cnt);
1386         pos += scnprintf(buf + pos, bufsz - pos,
1387                          fmt_table, "rx_detected_cnt:",
1388                          le32_to_cpu(tx->rx_detected_cnt),
1389                          accum_tx->rx_detected_cnt,
1390                          delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1391         pos += scnprintf(buf + pos, bufsz - pos,
1392                          fmt_table, "bt_prio_defer_cnt:",
1393                          le32_to_cpu(tx->bt_prio_defer_cnt),
1394                          accum_tx->bt_prio_defer_cnt,
1395                          delta_tx->bt_prio_defer_cnt,
1396                          max_tx->bt_prio_defer_cnt);
1397         pos += scnprintf(buf + pos, bufsz - pos,
1398                          fmt_table, "bt_prio_kill_cnt:",
1399                          le32_to_cpu(tx->bt_prio_kill_cnt),
1400                          accum_tx->bt_prio_kill_cnt,
1401                          delta_tx->bt_prio_kill_cnt,
1402                          max_tx->bt_prio_kill_cnt);
1403         pos += scnprintf(buf + pos, bufsz - pos,
1404                          fmt_table, "few_bytes_cnt:",
1405                          le32_to_cpu(tx->few_bytes_cnt),
1406                          accum_tx->few_bytes_cnt,
1407                          delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1408         pos += scnprintf(buf + pos, bufsz - pos,
1409                          fmt_table, "cts_timeout:",
1410                          le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1411                          delta_tx->cts_timeout, max_tx->cts_timeout);
1412         pos += scnprintf(buf + pos, bufsz - pos,
1413                          fmt_table, "ack_timeout:",
1414                          le32_to_cpu(tx->ack_timeout),
1415                          accum_tx->ack_timeout,
1416                          delta_tx->ack_timeout, max_tx->ack_timeout);
1417         pos += scnprintf(buf + pos, bufsz - pos,
1418                          fmt_table, "expected_ack_cnt:",
1419                          le32_to_cpu(tx->expected_ack_cnt),
1420                          accum_tx->expected_ack_cnt,
1421                          delta_tx->expected_ack_cnt,
1422                          max_tx->expected_ack_cnt);
1423         pos += scnprintf(buf + pos, bufsz - pos,
1424                          fmt_table, "actual_ack_cnt:",
1425                          le32_to_cpu(tx->actual_ack_cnt),
1426                          accum_tx->actual_ack_cnt,
1427                          delta_tx->actual_ack_cnt,
1428                          max_tx->actual_ack_cnt);
1429         pos += scnprintf(buf + pos, bufsz - pos,
1430                          fmt_table, "dump_msdu_cnt:",
1431                          le32_to_cpu(tx->dump_msdu_cnt),
1432                          accum_tx->dump_msdu_cnt,
1433                          delta_tx->dump_msdu_cnt,
1434                          max_tx->dump_msdu_cnt);
1435         pos += scnprintf(buf + pos, bufsz - pos,
1436                          fmt_table, "abort_nxt_frame_mismatch:",
1437                          le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1438                          accum_tx->burst_abort_next_frame_mismatch_cnt,
1439                          delta_tx->burst_abort_next_frame_mismatch_cnt,
1440                          max_tx->burst_abort_next_frame_mismatch_cnt);
1441         pos += scnprintf(buf + pos, bufsz - pos,
1442                          fmt_table, "abort_missing_nxt_frame:",
1443                          le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1444                          accum_tx->burst_abort_missing_next_frame_cnt,
1445                          delta_tx->burst_abort_missing_next_frame_cnt,
1446                          max_tx->burst_abort_missing_next_frame_cnt);
1447         pos += scnprintf(buf + pos, bufsz - pos,
1448                          fmt_table, "cts_timeout_collision:",
1449                          le32_to_cpu(tx->cts_timeout_collision),
1450                          accum_tx->cts_timeout_collision,
1451                          delta_tx->cts_timeout_collision,
1452                          max_tx->cts_timeout_collision);
1453         pos += scnprintf(buf + pos, bufsz - pos,
1454                          fmt_table, "ack_ba_timeout_collision:",
1455                          le32_to_cpu(tx->ack_or_ba_timeout_collision),
1456                          accum_tx->ack_or_ba_timeout_collision,
1457                          delta_tx->ack_or_ba_timeout_collision,
1458                          max_tx->ack_or_ba_timeout_collision);
1459         pos += scnprintf(buf + pos, bufsz - pos,
1460                          fmt_table, "agg ba_timeout:",
1461                          le32_to_cpu(tx->agg.ba_timeout),
1462                          accum_tx->agg.ba_timeout,
1463                          delta_tx->agg.ba_timeout,
1464                          max_tx->agg.ba_timeout);
1465         pos += scnprintf(buf + pos, bufsz - pos,
1466                          fmt_table, "agg ba_resched_frames:",
1467                          le32_to_cpu(tx->agg.ba_reschedule_frames),
1468                          accum_tx->agg.ba_reschedule_frames,
1469                          delta_tx->agg.ba_reschedule_frames,
1470                          max_tx->agg.ba_reschedule_frames);
1471         pos += scnprintf(buf + pos, bufsz - pos,
1472                          fmt_table, "agg scd_query_agg_frame:",
1473                          le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1474                          accum_tx->agg.scd_query_agg_frame_cnt,
1475                          delta_tx->agg.scd_query_agg_frame_cnt,
1476                          max_tx->agg.scd_query_agg_frame_cnt);
1477         pos += scnprintf(buf + pos, bufsz - pos,
1478                          fmt_table, "agg scd_query_no_agg:",
1479                          le32_to_cpu(tx->agg.scd_query_no_agg),
1480                          accum_tx->agg.scd_query_no_agg,
1481                          delta_tx->agg.scd_query_no_agg,
1482                          max_tx->agg.scd_query_no_agg);
1483         pos += scnprintf(buf + pos, bufsz - pos,
1484                          fmt_table, "agg scd_query_agg:",
1485                          le32_to_cpu(tx->agg.scd_query_agg),
1486                          accum_tx->agg.scd_query_agg,
1487                          delta_tx->agg.scd_query_agg,
1488                          max_tx->agg.scd_query_agg);
1489         pos += scnprintf(buf + pos, bufsz - pos,
1490                          fmt_table, "agg scd_query_mismatch:",
1491                          le32_to_cpu(tx->agg.scd_query_mismatch),
1492                          accum_tx->agg.scd_query_mismatch,
1493                          delta_tx->agg.scd_query_mismatch,
1494                          max_tx->agg.scd_query_mismatch);
1495         pos += scnprintf(buf + pos, bufsz - pos,
1496                          fmt_table, "agg frame_not_ready:",
1497                          le32_to_cpu(tx->agg.frame_not_ready),
1498                          accum_tx->agg.frame_not_ready,
1499                          delta_tx->agg.frame_not_ready,
1500                          max_tx->agg.frame_not_ready);
1501         pos += scnprintf(buf + pos, bufsz - pos,
1502                          fmt_table, "agg underrun:",
1503                          le32_to_cpu(tx->agg.underrun),
1504                          accum_tx->agg.underrun,
1505                          delta_tx->agg.underrun, max_tx->agg.underrun);
1506         pos += scnprintf(buf + pos, bufsz - pos,
1507                          fmt_table, "agg bt_prio_kill:",
1508                          le32_to_cpu(tx->agg.bt_prio_kill),
1509                          accum_tx->agg.bt_prio_kill,
1510                          delta_tx->agg.bt_prio_kill,
1511                          max_tx->agg.bt_prio_kill);
1512         pos += scnprintf(buf + pos, bufsz - pos,
1513                          fmt_table, "agg rx_ba_rsp_cnt:",
1514                          le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1515                          accum_tx->agg.rx_ba_rsp_cnt,
1516                          delta_tx->agg.rx_ba_rsp_cnt,
1517                          max_tx->agg.rx_ba_rsp_cnt);
1518
1519         if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
1520                 pos += scnprintf(buf + pos, bufsz - pos,
1521                         "tx power: (1/2 dB step)\n");
1522                 if ((priv->hw_params.valid_tx_ant & ANT_A) &&
1523                     tx->tx_power.ant_a)
1524                         pos += scnprintf(buf + pos, bufsz - pos,
1525                                         fmt_hex, "antenna A:",
1526                                         tx->tx_power.ant_a);
1527                 if ((priv->hw_params.valid_tx_ant & ANT_B) &&
1528                     tx->tx_power.ant_b)
1529                         pos += scnprintf(buf + pos, bufsz - pos,
1530                                         fmt_hex, "antenna B:",
1531                                         tx->tx_power.ant_b);
1532                 if ((priv->hw_params.valid_tx_ant & ANT_C) &&
1533                     tx->tx_power.ant_c)
1534                         pos += scnprintf(buf + pos, bufsz - pos,
1535                                         fmt_hex, "antenna C:",
1536                                         tx->tx_power.ant_c);
1537         }
1538
1539         spin_unlock_bh(&priv->statistics.lock);
1540
1541         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1542         kfree(buf);
1543         return ret;
1544 }
1545
1546 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1547                                         char __user *user_buf,
1548                                         size_t count, loff_t *ppos)
1549 {
1550         struct iwl_priv *priv = file->private_data;
1551         int pos = 0;
1552         char *buf;
1553         int bufsz = sizeof(struct statistics_general) * 10 + 300;
1554         ssize_t ret;
1555         struct statistics_general_common *general, *accum_general;
1556         struct statistics_general_common *delta_general, *max_general;
1557         struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1558         struct statistics_div *div, *accum_div, *delta_div, *max_div;
1559
1560         if (!iwl_is_alive(priv))
1561                 return -EAGAIN;
1562
1563         buf = kzalloc(bufsz, GFP_KERNEL);
1564         if (!buf)
1565                 return -ENOMEM;
1566
1567         /* the statistic information display here is based on
1568          * the last statistics notification from uCode
1569          * might not reflect the current uCode activity
1570          */
1571
1572         spin_lock_bh(&priv->statistics.lock);
1573
1574         general = &priv->statistics.common;
1575         dbg = &priv->statistics.common.dbg;
1576         div = &priv->statistics.common.div;
1577         accum_general = &priv->accum_stats.common;
1578         accum_dbg = &priv->accum_stats.common.dbg;
1579         accum_div = &priv->accum_stats.common.div;
1580         delta_general = &priv->delta_stats.common;
1581         max_general = &priv->max_delta_stats.common;
1582         delta_dbg = &priv->delta_stats.common.dbg;
1583         max_dbg = &priv->max_delta_stats.common.dbg;
1584         delta_div = &priv->delta_stats.common.div;
1585         max_div = &priv->max_delta_stats.common.div;
1586
1587         pos += iwl_statistics_flag(priv, buf, bufsz);
1588         pos += scnprintf(buf + pos, bufsz - pos,
1589                          fmt_header, "Statistics_General:");
1590         pos += scnprintf(buf + pos, bufsz - pos,
1591                          fmt_value, "temperature:",
1592                          le32_to_cpu(general->temperature));
1593         pos += scnprintf(buf + pos, bufsz - pos,
1594                          fmt_value, "temperature_m:",
1595                          le32_to_cpu(general->temperature_m));
1596         pos += scnprintf(buf + pos, bufsz - pos,
1597                          fmt_value, "ttl_timestamp:",
1598                          le32_to_cpu(general->ttl_timestamp));
1599         pos += scnprintf(buf + pos, bufsz - pos,
1600                          fmt_table, "burst_check:",
1601                          le32_to_cpu(dbg->burst_check),
1602                          accum_dbg->burst_check,
1603                          delta_dbg->burst_check, max_dbg->burst_check);
1604         pos += scnprintf(buf + pos, bufsz - pos,
1605                          fmt_table, "burst_count:",
1606                          le32_to_cpu(dbg->burst_count),
1607                          accum_dbg->burst_count,
1608                          delta_dbg->burst_count, max_dbg->burst_count);
1609         pos += scnprintf(buf + pos, bufsz - pos,
1610                          fmt_table, "wait_for_silence_timeout_count:",
1611                          le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
1612                          accum_dbg->wait_for_silence_timeout_cnt,
1613                          delta_dbg->wait_for_silence_timeout_cnt,
1614                          max_dbg->wait_for_silence_timeout_cnt);
1615         pos += scnprintf(buf + pos, bufsz - pos,
1616                          fmt_table, "sleep_time:",
1617                          le32_to_cpu(general->sleep_time),
1618                          accum_general->sleep_time,
1619                          delta_general->sleep_time, max_general->sleep_time);
1620         pos += scnprintf(buf + pos, bufsz - pos,
1621                          fmt_table, "slots_out:",
1622                          le32_to_cpu(general->slots_out),
1623                          accum_general->slots_out,
1624                          delta_general->slots_out, max_general->slots_out);
1625         pos += scnprintf(buf + pos, bufsz - pos,
1626                          fmt_table, "slots_idle:",
1627                          le32_to_cpu(general->slots_idle),
1628                          accum_general->slots_idle,
1629                          delta_general->slots_idle, max_general->slots_idle);
1630         pos += scnprintf(buf + pos, bufsz - pos,
1631                          fmt_table, "tx_on_a:",
1632                          le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1633                          delta_div->tx_on_a, max_div->tx_on_a);
1634         pos += scnprintf(buf + pos, bufsz - pos,
1635                          fmt_table, "tx_on_b:",
1636                          le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1637                          delta_div->tx_on_b, max_div->tx_on_b);
1638         pos += scnprintf(buf + pos, bufsz - pos,
1639                          fmt_table, "exec_time:",
1640                          le32_to_cpu(div->exec_time), accum_div->exec_time,
1641                          delta_div->exec_time, max_div->exec_time);
1642         pos += scnprintf(buf + pos, bufsz - pos,
1643                          fmt_table, "probe_time:",
1644                          le32_to_cpu(div->probe_time), accum_div->probe_time,
1645                          delta_div->probe_time, max_div->probe_time);
1646         pos += scnprintf(buf + pos, bufsz - pos,
1647                          fmt_table, "rx_enable_counter:",
1648                          le32_to_cpu(general->rx_enable_counter),
1649                          accum_general->rx_enable_counter,
1650                          delta_general->rx_enable_counter,
1651                          max_general->rx_enable_counter);
1652         pos += scnprintf(buf + pos, bufsz - pos,
1653                          fmt_table, "num_of_sos_states:",
1654                          le32_to_cpu(general->num_of_sos_states),
1655                          accum_general->num_of_sos_states,
1656                          delta_general->num_of_sos_states,
1657                          max_general->num_of_sos_states);
1658
1659         spin_unlock_bh(&priv->statistics.lock);
1660
1661         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1662         kfree(buf);
1663         return ret;
1664 }
1665
1666 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1667                                         char __user *user_buf,
1668                                         size_t count, loff_t *ppos)
1669 {
1670         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1671         int pos = 0;
1672         char *buf;
1673         int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
1674         ssize_t ret;
1675         struct statistics_bt_activity *bt, *accum_bt;
1676
1677         if (!iwl_is_alive(priv))
1678                 return -EAGAIN;
1679
1680         if (!priv->bt_enable_flag)
1681                 return -EINVAL;
1682
1683         /* make request to uCode to retrieve statistics information */
1684         mutex_lock(&priv->mutex);
1685         ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
1686         mutex_unlock(&priv->mutex);
1687
1688         if (ret)
1689                 return -EAGAIN;
1690         buf = kzalloc(bufsz, GFP_KERNEL);
1691         if (!buf)
1692                 return -ENOMEM;
1693
1694         /*
1695          * the statistic information display here is based on
1696          * the last statistics notification from uCode
1697          * might not reflect the current uCode activity
1698          */
1699
1700         spin_lock_bh(&priv->statistics.lock);
1701
1702         bt = &priv->statistics.bt_activity;
1703         accum_bt = &priv->accum_stats.bt_activity;
1704
1705         pos += iwl_statistics_flag(priv, buf, bufsz);
1706         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
1707         pos += scnprintf(buf + pos, bufsz - pos,
1708                         "\t\t\tcurrent\t\t\taccumulative\n");
1709         pos += scnprintf(buf + pos, bufsz - pos,
1710                          "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1711                          le32_to_cpu(bt->hi_priority_tx_req_cnt),
1712                          accum_bt->hi_priority_tx_req_cnt);
1713         pos += scnprintf(buf + pos, bufsz - pos,
1714                          "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1715                          le32_to_cpu(bt->hi_priority_tx_denied_cnt),
1716                          accum_bt->hi_priority_tx_denied_cnt);
1717         pos += scnprintf(buf + pos, bufsz - pos,
1718                          "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1719                          le32_to_cpu(bt->lo_priority_tx_req_cnt),
1720                          accum_bt->lo_priority_tx_req_cnt);
1721         pos += scnprintf(buf + pos, bufsz - pos,
1722                          "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1723                          le32_to_cpu(bt->lo_priority_tx_denied_cnt),
1724                          accum_bt->lo_priority_tx_denied_cnt);
1725         pos += scnprintf(buf + pos, bufsz - pos,
1726                          "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1727                          le32_to_cpu(bt->hi_priority_rx_req_cnt),
1728                          accum_bt->hi_priority_rx_req_cnt);
1729         pos += scnprintf(buf + pos, bufsz - pos,
1730                          "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1731                          le32_to_cpu(bt->hi_priority_rx_denied_cnt),
1732                          accum_bt->hi_priority_rx_denied_cnt);
1733         pos += scnprintf(buf + pos, bufsz - pos,
1734                          "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1735                          le32_to_cpu(bt->lo_priority_rx_req_cnt),
1736                          accum_bt->lo_priority_rx_req_cnt);
1737         pos += scnprintf(buf + pos, bufsz - pos,
1738                          "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1739                          le32_to_cpu(bt->lo_priority_rx_denied_cnt),
1740                          accum_bt->lo_priority_rx_denied_cnt);
1741
1742         pos += scnprintf(buf + pos, bufsz - pos,
1743                          "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
1744                          le32_to_cpu(priv->statistics.num_bt_kills),
1745                          priv->statistics.accum_num_bt_kills);
1746
1747         spin_unlock_bh(&priv->statistics.lock);
1748
1749         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1750         kfree(buf);
1751         return ret;
1752 }
1753
1754 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1755                                         char __user *user_buf,
1756                                         size_t count, loff_t *ppos)
1757 {
1758         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1759         int pos = 0;
1760         char *buf;
1761         int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
1762                 (sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
1763         ssize_t ret;
1764
1765         if (!iwl_is_alive(priv))
1766                 return -EAGAIN;
1767
1768         buf = kzalloc(bufsz, GFP_KERNEL);
1769         if (!buf)
1770                 return -ENOMEM;
1771
1772         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
1773         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
1774                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1775                          priv->reply_tx_stats.pp_delay);
1776         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1777                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1778                          priv->reply_tx_stats.pp_few_bytes);
1779         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1780                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1781                          priv->reply_tx_stats.pp_bt_prio);
1782         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1783                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1784                          priv->reply_tx_stats.pp_quiet_period);
1785         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1786                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1787                          priv->reply_tx_stats.pp_calc_ttak);
1788         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1789                          iwl_get_tx_fail_reason(
1790                                 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1791                          priv->reply_tx_stats.int_crossed_retry);
1792         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1793                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1794                          priv->reply_tx_stats.short_limit);
1795         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1796                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1797                          priv->reply_tx_stats.long_limit);
1798         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1799                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1800                          priv->reply_tx_stats.fifo_underrun);
1801         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1802                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1803                          priv->reply_tx_stats.drain_flow);
1804         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1805                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1806                          priv->reply_tx_stats.rfkill_flush);
1807         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1808                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1809                          priv->reply_tx_stats.life_expire);
1810         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1811                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1812                          priv->reply_tx_stats.dest_ps);
1813         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1814                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1815                          priv->reply_tx_stats.host_abort);
1816         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1817                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1818                          priv->reply_tx_stats.pp_delay);
1819         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1820                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1821                          priv->reply_tx_stats.sta_invalid);
1822         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1823                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1824                          priv->reply_tx_stats.frag_drop);
1825         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1826                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1827                          priv->reply_tx_stats.tid_disable);
1828         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1829                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1830                          priv->reply_tx_stats.fifo_flush);
1831         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1832                          iwl_get_tx_fail_reason(
1833                                 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1834                          priv->reply_tx_stats.insuff_cf_poll);
1835         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1836                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1837                          priv->reply_tx_stats.fail_hw_drop);
1838         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1839                          iwl_get_tx_fail_reason(
1840                                 TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1841                          priv->reply_tx_stats.sta_color_mismatch);
1842         pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1843                          priv->reply_tx_stats.unknown);
1844
1845         pos += scnprintf(buf + pos, bufsz - pos,
1846                          "\nStatistics_Agg_TX_Error:\n");
1847
1848         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1849                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1850                          priv->reply_agg_tx_stats.underrun);
1851         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1852                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1853                          priv->reply_agg_tx_stats.bt_prio);
1854         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1855                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1856                          priv->reply_agg_tx_stats.few_bytes);
1857         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1858                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
1859                          priv->reply_agg_tx_stats.abort);
1860         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1861                          iwl_get_agg_tx_fail_reason(
1862                                 AGG_TX_STATE_LAST_SENT_TTL_MSK),
1863                          priv->reply_agg_tx_stats.last_sent_ttl);
1864         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1865                          iwl_get_agg_tx_fail_reason(
1866                                 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK),
1867                          priv->reply_agg_tx_stats.last_sent_try);
1868         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1869                          iwl_get_agg_tx_fail_reason(
1870                                 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
1871                          priv->reply_agg_tx_stats.last_sent_bt_kill);
1872         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1873                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
1874                          priv->reply_agg_tx_stats.scd_query);
1875         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1876                          iwl_get_agg_tx_fail_reason(
1877                                 AGG_TX_STATE_TEST_BAD_CRC32_MSK),
1878                          priv->reply_agg_tx_stats.bad_crc32);
1879         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1880                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
1881                          priv->reply_agg_tx_stats.response);
1882         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1883                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
1884                          priv->reply_agg_tx_stats.dump_tx);
1885         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1886                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
1887                          priv->reply_agg_tx_stats.delay_tx);
1888         pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1889                          priv->reply_agg_tx_stats.unknown);
1890
1891         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1892         kfree(buf);
1893         return ret;
1894 }
1895
1896 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1897                                         char __user *user_buf,
1898                                         size_t count, loff_t *ppos) {
1899
1900         struct iwl_priv *priv = file->private_data;
1901         int pos = 0;
1902         int cnt = 0;
1903         char *buf;
1904         int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1905         ssize_t ret;
1906         struct iwl_sensitivity_data *data;
1907
1908         data = &priv->sensitivity_data;
1909         buf = kzalloc(bufsz, GFP_KERNEL);
1910         if (!buf)
1911                 return -ENOMEM;
1912
1913         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1914                         data->auto_corr_ofdm);
1915         pos += scnprintf(buf + pos, bufsz - pos,
1916                         "auto_corr_ofdm_mrc:\t\t %u\n",
1917                         data->auto_corr_ofdm_mrc);
1918         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1919                         data->auto_corr_ofdm_x1);
1920         pos += scnprintf(buf + pos, bufsz - pos,
1921                         "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1922                         data->auto_corr_ofdm_mrc_x1);
1923         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1924                         data->auto_corr_cck);
1925         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1926                         data->auto_corr_cck_mrc);
1927         pos += scnprintf(buf + pos, bufsz - pos,
1928                         "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1929                         data->last_bad_plcp_cnt_ofdm);
1930         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1931                         data->last_fa_cnt_ofdm);
1932         pos += scnprintf(buf + pos, bufsz - pos,
1933                         "last_bad_plcp_cnt_cck:\t\t %u\n",
1934                         data->last_bad_plcp_cnt_cck);
1935         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1936                         data->last_fa_cnt_cck);
1937         pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1938                         data->nrg_curr_state);
1939         pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1940                         data->nrg_prev_state);
1941         pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1942         for (cnt = 0; cnt < 10; cnt++) {
1943                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1944                                 data->nrg_value[cnt]);
1945         }
1946         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1947         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1948         for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1949                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1950                                 data->nrg_silence_rssi[cnt]);
1951         }
1952         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1953         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1954                         data->nrg_silence_ref);
1955         pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1956                         data->nrg_energy_idx);
1957         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1958                         data->nrg_silence_idx);
1959         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1960                         data->nrg_th_cck);
1961         pos += scnprintf(buf + pos, bufsz - pos,
1962                         "nrg_auto_corr_silence_diff:\t %u\n",
1963                         data->nrg_auto_corr_silence_diff);
1964         pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1965                         data->num_in_cck_no_fa);
1966         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1967                         data->nrg_th_ofdm);
1968
1969         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1970         kfree(buf);
1971         return ret;
1972 }
1973
1974
1975 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1976                                         char __user *user_buf,
1977                                         size_t count, loff_t *ppos) {
1978
1979         struct iwl_priv *priv = file->private_data;
1980         int pos = 0;
1981         int cnt = 0;
1982         char *buf;
1983         int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1984         ssize_t ret;
1985         struct iwl_chain_noise_data *data;
1986
1987         data = &priv->chain_noise_data;
1988         buf = kzalloc(bufsz, GFP_KERNEL);
1989         if (!buf)
1990                 return -ENOMEM;
1991
1992         pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1993                         data->active_chains);
1994         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1995                         data->chain_noise_a);
1996         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1997                         data->chain_noise_b);
1998         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1999                         data->chain_noise_c);
2000         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
2001                         data->chain_signal_a);
2002         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
2003                         data->chain_signal_b);
2004         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
2005                         data->chain_signal_c);
2006         pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
2007                         data->beacon_count);
2008
2009         pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
2010         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
2011                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
2012                                 data->disconn_array[cnt]);
2013         }
2014         pos += scnprintf(buf + pos, bufsz - pos, "\n");
2015         pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
2016         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
2017                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
2018                                 data->delta_gain_code[cnt]);
2019         }
2020         pos += scnprintf(buf + pos, bufsz - pos, "\n");
2021         pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
2022                         data->radio_write);
2023         pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
2024                         data->state);
2025
2026         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2027         kfree(buf);
2028         return ret;
2029 }
2030
2031 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
2032                                                     char __user *user_buf,
2033                                                     size_t count, loff_t *ppos)
2034 {
2035         struct iwl_priv *priv = file->private_data;
2036         char buf[60];
2037         int pos = 0;
2038         const size_t bufsz = sizeof(buf);
2039         u32 pwrsave_status;
2040
2041         pwrsave_status = iwl_read32(priv->trans, CSR_GP_CNTRL) &
2042                         CSR_GP_REG_POWER_SAVE_STATUS_MSK;
2043
2044         pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
2045         pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
2046                 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
2047                 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
2048                 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
2049                 "error");
2050
2051         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2052 }
2053
2054 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
2055                                          const char __user *user_buf,
2056                                          size_t count, loff_t *ppos)
2057 {
2058         struct iwl_priv *priv = file->private_data;
2059         char buf[8];
2060         int buf_size;
2061         int clear;
2062
2063         memset(buf, 0, sizeof(buf));
2064         buf_size = min(count, sizeof(buf) -  1);
2065         if (copy_from_user(buf, user_buf, buf_size))
2066                 return -EFAULT;
2067         if (sscanf(buf, "%d", &clear) != 1)
2068                 return -EFAULT;
2069
2070         /* make request to uCode to retrieve statistics information */
2071         mutex_lock(&priv->mutex);
2072         iwl_send_statistics_request(priv, CMD_SYNC, true);
2073         mutex_unlock(&priv->mutex);
2074
2075         return count;
2076 }
2077
2078 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
2079                                         char __user *user_buf,
2080                                         size_t count, loff_t *ppos) {
2081
2082         struct iwl_priv *priv = file->private_data;
2083         int pos = 0;
2084         char buf[128];
2085         const size_t bufsz = sizeof(buf);
2086
2087         pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
2088                         priv->event_log.ucode_trace ? "On" : "Off");
2089         pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
2090                         priv->event_log.non_wraps_count);
2091         pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
2092                         priv->event_log.wraps_once_count);
2093         pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
2094                         priv->event_log.wraps_more_count);
2095
2096         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2097 }
2098
2099 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
2100                                          const char __user *user_buf,
2101                                          size_t count, loff_t *ppos)
2102 {
2103         struct iwl_priv *priv = file->private_data;
2104         char buf[8];
2105         int buf_size;
2106         int trace;
2107
2108         memset(buf, 0, sizeof(buf));
2109         buf_size = min(count, sizeof(buf) -  1);
2110         if (copy_from_user(buf, user_buf, buf_size))
2111                 return -EFAULT;
2112         if (sscanf(buf, "%d", &trace) != 1)
2113                 return -EFAULT;
2114
2115         if (trace) {
2116                 priv->event_log.ucode_trace = true;
2117                 if (iwl_is_alive(priv)) {
2118                         /* start collecting data now */
2119                         mod_timer(&priv->ucode_trace, jiffies);
2120                 }
2121         } else {
2122                 priv->event_log.ucode_trace = false;
2123                 del_timer_sync(&priv->ucode_trace);
2124         }
2125
2126         return count;
2127 }
2128
2129 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
2130                                          char __user *user_buf,
2131                                          size_t count, loff_t *ppos) {
2132
2133         struct iwl_priv *priv = file->private_data;
2134         int len = 0;
2135         char buf[20];
2136
2137         len = sprintf(buf, "0x%04X\n",
2138                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
2139         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2140 }
2141
2142 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
2143                                                 char __user *user_buf,
2144                                                 size_t count, loff_t *ppos) {
2145
2146         struct iwl_priv *priv = file->private_data;
2147         int len = 0;
2148         char buf[20];
2149
2150         len = sprintf(buf, "0x%04X\n",
2151                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
2152         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2153 }
2154
2155 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
2156                                         char __user *user_buf,
2157                                         size_t count, loff_t *ppos) {
2158
2159         struct iwl_priv *priv = file->private_data;
2160         int pos = 0;
2161         char buf[12];
2162         const size_t bufsz = sizeof(buf);
2163
2164         pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
2165                         priv->missed_beacon_threshold);
2166
2167         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2168 }
2169
2170 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
2171                                          const char __user *user_buf,
2172                                          size_t count, loff_t *ppos)
2173 {
2174         struct iwl_priv *priv = file->private_data;
2175         char buf[8];
2176         int buf_size;
2177         int missed;
2178
2179         memset(buf, 0, sizeof(buf));
2180         buf_size = min(count, sizeof(buf) -  1);
2181         if (copy_from_user(buf, user_buf, buf_size))
2182                 return -EFAULT;
2183         if (sscanf(buf, "%d", &missed) != 1)
2184                 return -EINVAL;
2185
2186         if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
2187             missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
2188                 priv->missed_beacon_threshold =
2189                         IWL_MISSED_BEACON_THRESHOLD_DEF;
2190         else
2191                 priv->missed_beacon_threshold = missed;
2192
2193         return count;
2194 }
2195
2196 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
2197                                         char __user *user_buf,
2198                                         size_t count, loff_t *ppos) {
2199
2200         struct iwl_priv *priv = file->private_data;
2201         int pos = 0;
2202         char buf[12];
2203         const size_t bufsz = sizeof(buf);
2204
2205         pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
2206                         priv->plcp_delta_threshold);
2207
2208         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2209 }
2210
2211 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
2212                                         const char __user *user_buf,
2213                                         size_t count, loff_t *ppos) {
2214
2215         struct iwl_priv *priv = file->private_data;
2216         char buf[8];
2217         int buf_size;
2218         int plcp;
2219
2220         memset(buf, 0, sizeof(buf));
2221         buf_size = min(count, sizeof(buf) -  1);
2222         if (copy_from_user(buf, user_buf, buf_size))
2223                 return -EFAULT;
2224         if (sscanf(buf, "%d", &plcp) != 1)
2225                 return -EINVAL;
2226         if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
2227                 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
2228                 priv->plcp_delta_threshold =
2229                         IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
2230         else
2231                 priv->plcp_delta_threshold = plcp;
2232         return count;
2233 }
2234
2235 static ssize_t iwl_dbgfs_rf_reset_read(struct file *file,
2236                                        char __user *user_buf,
2237                                        size_t count, loff_t *ppos)
2238 {
2239         struct iwl_priv *priv = file->private_data;
2240         int pos = 0;
2241         char buf[300];
2242         const size_t bufsz = sizeof(buf);
2243         struct iwl_rf_reset *rf_reset = &priv->rf_reset;
2244
2245         pos += scnprintf(buf + pos, bufsz - pos,
2246                         "RF reset statistics\n");
2247         pos += scnprintf(buf + pos, bufsz - pos,
2248                         "\tnumber of reset request: %d\n",
2249                         rf_reset->reset_request_count);
2250         pos += scnprintf(buf + pos, bufsz - pos,
2251                         "\tnumber of reset request success: %d\n",
2252                         rf_reset->reset_success_count);
2253         pos += scnprintf(buf + pos, bufsz - pos,
2254                         "\tnumber of reset request reject: %d\n",
2255                         rf_reset->reset_reject_count);
2256
2257         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2258 }
2259
2260 static ssize_t iwl_dbgfs_rf_reset_write(struct file *file,
2261                                         const char __user *user_buf,
2262                                         size_t count, loff_t *ppos) {
2263
2264         struct iwl_priv *priv = file->private_data;
2265         int ret;
2266
2267         ret = iwl_force_rf_reset(priv, true);
2268         return ret ? ret : count;
2269 }
2270
2271 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
2272                                         const char __user *user_buf,
2273                                         size_t count, loff_t *ppos) {
2274
2275         struct iwl_priv *priv = file->private_data;
2276         char buf[8];
2277         int buf_size;
2278         int flush;
2279
2280         memset(buf, 0, sizeof(buf));
2281         buf_size = min(count, sizeof(buf) -  1);
2282         if (copy_from_user(buf, user_buf, buf_size))
2283                 return -EFAULT;
2284         if (sscanf(buf, "%d", &flush) != 1)
2285                 return -EINVAL;
2286
2287         if (iwl_is_rfkill(priv))
2288                 return -EFAULT;
2289
2290         iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
2291
2292         return count;
2293 }
2294
2295 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
2296                                         char __user *user_buf,
2297                                         size_t count, loff_t *ppos) {
2298
2299         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2300         int pos = 0;
2301         char buf[200];
2302         const size_t bufsz = sizeof(buf);
2303
2304         if (!priv->bt_enable_flag) {
2305                 pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2306                 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2307         }
2308         pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
2309                 priv->bt_enable_flag);
2310         pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
2311                 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
2312         pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
2313                          "last traffic notif: %d\n",
2314                 priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2315         pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2316                          "kill_ack_mask: %x, kill_cts_mask: %x\n",
2317                 priv->bt_ch_announce, priv->kill_ack_mask,
2318                 priv->kill_cts_mask);
2319
2320         pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
2321         switch (priv->bt_traffic_load) {
2322         case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
2323                 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
2324                 break;
2325         case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
2326                 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
2327                 break;
2328         case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
2329                 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
2330                 break;
2331         case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
2332         default:
2333                 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
2334                 break;
2335         }
2336
2337         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2338 }
2339
2340 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
2341                                         char __user *user_buf,
2342                                         size_t count, loff_t *ppos)
2343 {
2344         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2345
2346         int pos = 0;
2347         char buf[40];
2348         const size_t bufsz = sizeof(buf);
2349
2350         if (priv->cfg->ht_params)
2351                 pos += scnprintf(buf + pos, bufsz - pos,
2352                          "use %s for aggregation\n",
2353                          (priv->hw_params.use_rts_for_aggregation) ?
2354                                 "rts/cts" : "cts-to-self");
2355         else
2356                 pos += scnprintf(buf + pos, bufsz - pos, "N/A");
2357
2358         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2359 }
2360
2361 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
2362                                         const char __user *user_buf,
2363                                         size_t count, loff_t *ppos) {
2364
2365         struct iwl_priv *priv = file->private_data;
2366         char buf[8];
2367         int buf_size;
2368         int rts;
2369
2370         if (!priv->cfg->ht_params)
2371                 return -EINVAL;
2372
2373         memset(buf, 0, sizeof(buf));
2374         buf_size = min(count, sizeof(buf) -  1);
2375         if (copy_from_user(buf, user_buf, buf_size))
2376                 return -EFAULT;
2377         if (sscanf(buf, "%d", &rts) != 1)
2378                 return -EINVAL;
2379         if (rts)
2380                 priv->hw_params.use_rts_for_aggregation = true;
2381         else
2382                 priv->hw_params.use_rts_for_aggregation = false;
2383         return count;
2384 }
2385
2386 static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
2387                                         const char __user *user_buf,
2388                                         size_t count, loff_t *ppos)
2389 {
2390         struct iwl_priv *priv = file->private_data;
2391         char buf[8];
2392         int buf_size;
2393
2394         memset(buf, 0, sizeof(buf));
2395         buf_size = min(count, sizeof(buf) -  1);
2396         if (copy_from_user(buf, user_buf, buf_size))
2397                 return -EFAULT;
2398
2399         iwl_cmd_echo_test(priv);
2400         return count;
2401 }
2402
2403 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
2404                                          char __user *user_buf,
2405                                          size_t count, loff_t *ppos)
2406 {
2407         struct iwl_priv *priv = file->private_data;
2408         char *buf;
2409         int pos = 0;
2410         ssize_t ret = -ENOMEM;
2411
2412         ret = pos = iwl_dump_nic_event_log(priv, true, &buf, true);
2413         if (buf) {
2414                 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2415                 kfree(buf);
2416         }
2417         return ret;
2418 }
2419
2420 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
2421                                         const char __user *user_buf,
2422                                         size_t count, loff_t *ppos)
2423 {
2424         struct iwl_priv *priv = file->private_data;
2425         u32 event_log_flag;
2426         char buf[8];
2427         int buf_size;
2428
2429         memset(buf, 0, sizeof(buf));
2430         buf_size = min(count, sizeof(buf) -  1);
2431         if (copy_from_user(buf, user_buf, buf_size))
2432                 return -EFAULT;
2433         if (sscanf(buf, "%d", &event_log_flag) != 1)
2434                 return -EFAULT;
2435         if (event_log_flag == 1)
2436                 iwl_dump_nic_event_log(priv, true, NULL, false);
2437
2438         return count;
2439 }
2440
2441 static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file,
2442                                          char __user *user_buf,
2443                                          size_t count, loff_t *ppos)
2444 {
2445         struct iwl_priv *priv = file->private_data;
2446         char buf[120];
2447         int pos = 0;
2448         const size_t bufsz = sizeof(buf);
2449
2450         pos += scnprintf(buf + pos, bufsz - pos,
2451                          "Sensitivity calibrations %s\n",
2452                          (priv->calib_disabled &
2453                                         IWL_SENSITIVITY_CALIB_DISABLED) ?
2454                          "DISABLED" : "ENABLED");
2455         pos += scnprintf(buf + pos, bufsz - pos,
2456                          "Chain noise calibrations %s\n",
2457                          (priv->calib_disabled &
2458                                         IWL_CHAIN_NOISE_CALIB_DISABLED) ?
2459                          "DISABLED" : "ENABLED");
2460         pos += scnprintf(buf + pos, bufsz - pos,
2461                          "Tx power calibrations %s\n",
2462                          (priv->calib_disabled &
2463                                         IWL_TX_POWER_CALIB_DISABLED) ?
2464                          "DISABLED" : "ENABLED");
2465
2466         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2467 }
2468
2469 static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
2470                                               const char __user *user_buf,
2471                                               size_t count, loff_t *ppos)
2472 {
2473         struct iwl_priv *priv = file->private_data;
2474         char buf[8];
2475         u32 calib_disabled;
2476         int buf_size;
2477
2478         memset(buf, 0, sizeof(buf));
2479         buf_size = min(count, sizeof(buf) - 1);
2480         if (copy_from_user(buf, user_buf, buf_size))
2481                 return -EFAULT;
2482         if (sscanf(buf, "%x", &calib_disabled) != 1)
2483                 return -EFAULT;
2484
2485         priv->calib_disabled = calib_disabled;
2486
2487         return count;
2488 }
2489
2490 DEBUGFS_READ_FILE_OPS(rx_statistics);
2491 DEBUGFS_READ_FILE_OPS(tx_statistics);
2492 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
2493 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2494 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2495 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2496 DEBUGFS_READ_FILE_OPS(sensitivity);
2497 DEBUGFS_READ_FILE_OPS(chain_noise);
2498 DEBUGFS_READ_FILE_OPS(power_save_status);
2499 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2500 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
2501 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2502 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2503 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2504 DEBUGFS_READ_WRITE_FILE_OPS(rf_reset);
2505 DEBUGFS_READ_FILE_OPS(rxon_flags);
2506 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2507 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2508 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2509 DEBUGFS_READ_FILE_OPS(bt_traffic);
2510 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2511 DEBUGFS_READ_FILE_OPS(reply_tx_error);
2512 DEBUGFS_WRITE_FILE_OPS(echo_test);
2513 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
2514 DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
2515
2516 /*
2517  * Create the debugfs files and directories
2518  *
2519  */
2520 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
2521 {
2522         struct dentry *phyd = priv->hw->wiphy->debugfsdir;
2523         struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
2524
2525         dir_drv = debugfs_create_dir(name, phyd);
2526         if (!dir_drv)
2527                 return -ENOMEM;
2528
2529         priv->debugfs_dir = dir_drv;
2530
2531         dir_data = debugfs_create_dir("data", dir_drv);
2532         if (!dir_data)
2533                 goto err;
2534         dir_rf = debugfs_create_dir("rf", dir_drv);
2535         if (!dir_rf)
2536                 goto err;
2537         dir_debug = debugfs_create_dir("debug", dir_drv);
2538         if (!dir_debug)
2539                 goto err;
2540
2541         DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
2542         DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
2543         DEBUGFS_ADD_FILE(wowlan_sram, dir_data, S_IRUSR);
2544         DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
2545         DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
2546         DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
2547         DEBUGFS_ADD_FILE(rx_handlers, dir_data, S_IWUSR | S_IRUSR);
2548         DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
2549         DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
2550         DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
2551         DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
2552         DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
2553         DEBUGFS_ADD_FILE(temperature, dir_data, S_IRUSR);
2554
2555         DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
2556         DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
2557         DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
2558         DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
2559         DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
2560         DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
2561         DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
2562         DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
2563         DEBUGFS_ADD_FILE(rf_reset, dir_debug, S_IWUSR | S_IRUSR);
2564         DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
2565         DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
2566         DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
2567         DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
2568         DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
2569         DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
2570         DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
2571         DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
2572         DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
2573         DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
2574         DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
2575         DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
2576         DEBUGFS_ADD_FILE(echo_test, dir_debug, S_IWUSR);
2577         DEBUGFS_ADD_FILE(log_event, dir_debug, S_IWUSR | S_IRUSR);
2578
2579         if (iwl_advanced_bt_coexist(priv))
2580                 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
2581
2582         /* Calibrations disabled/enabled status*/
2583         DEBUGFS_ADD_FILE(calib_disabled, dir_rf, S_IWUSR | S_IRUSR);
2584
2585         if (iwl_trans_dbgfs_register(priv->trans, dir_debug))
2586                 goto err;
2587         return 0;
2588
2589 err:
2590         IWL_ERR(priv, "Can't create the debugfs directory\n");
2591         iwl_dbgfs_unregister(priv);
2592         return -ENOMEM;
2593 }
2594
2595 /**
2596  * Remove the debugfs files and directories
2597  *
2598  */
2599 void iwl_dbgfs_unregister(struct iwl_priv *priv)
2600 {
2601         if (!priv->debugfs_dir)
2602                 return;
2603
2604         debugfs_remove_recursive(priv->debugfs_dir);
2605         priv->debugfs_dir = NULL;
2606 }