kernel/drivers/net/wireless/iwlwifi/dvm/debugfs.c

   1 /******************************************************************************
   2  *
   3  * GPL LICENSE SUMMARY
   4  *
   5  * Copyright(c) 2008 - 2014 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 COPYING.
  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 #include <linux/ieee80211.h>
  34 #include <net/mac80211.h>
  35 #include "iwl-debug.h"
  36 #include "iwl-io.h"
  37 #include "dev.h"
  38 #include "agn.h"
  39
  40 /* create and remove of files */
  41 #define DEBUGFS_ADD_FILE(name, parent, mode) do {                       \
  42         if (!debugfs_create_file(#name, mode, parent, priv,             \
  43                                  &iwl_dbgfs_##name##_ops))              \
  44                 goto err;                                               \
  45 } while (0)
  46
  47 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do {                        \
  48         struct dentry *__tmp;                                           \
  49         __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR,           \
  50                                     parent, ptr);                       \
  51         if (IS_ERR(__tmp) || !__tmp)                                    \
  52                 goto err;                                               \
  53 } while (0)
  54
  55 #define DEBUGFS_ADD_X32(name, parent, ptr) do {                         \
  56         struct dentry *__tmp;                                           \
  57         __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR,            \
  58                                    parent, ptr);                        \
  59         if (IS_ERR(__tmp) || !__tmp)                                    \
  60                 goto err;                                               \
  61 } while (0)
  62
  63 #define DEBUGFS_ADD_U32(name, parent, ptr, mode) do {                   \
  64         struct dentry *__tmp;                                           \
  65         __tmp = debugfs_create_u32(#name, mode,                         \
  66                                    parent, ptr);                        \
  67         if (IS_ERR(__tmp) || !__tmp)                                    \
  68                 goto err;                                               \
  69 } while (0)
  70
  71 /* file operation */
  72 #define DEBUGFS_READ_FILE_OPS(name)                                     \
  73 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  74         .read = iwl_dbgfs_##name##_read,                                \
  75         .open = simple_open,                                            \
  76         .llseek = generic_file_llseek,                                  \
  77 };
  78
  79 #define DEBUGFS_WRITE_FILE_OPS(name)                                    \
  80 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  81         .write = iwl_dbgfs_##name##_write,                              \
  82         .open = simple_open,                                            \
  83         .llseek = generic_file_llseek,                                  \
  84 };
  85
  86
  87 #define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
  88 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  89         .write = iwl_dbgfs_##name##_write,                              \
  90         .read = iwl_dbgfs_##name##_read,                                \
  91         .open = simple_open,                                            \
  92         .llseek = generic_file_llseek,                                  \
  93 };
  94
  95 static ssize_t iwl_dbgfs_sram_read(struct file *file,
  96                                         char __user *user_buf,
  97                                         size_t count, loff_t *ppos)
  98 {
  99         u32 val = 0;
 100         char *buf;
 101         ssize_t ret;
 102         int i = 0;
 103         bool device_format = false;
 104         int offset = 0;
 105         int len = 0;
 106         int pos = 0;
 107         int sram;
 108         struct iwl_priv *priv = file->private_data;
 109         const struct fw_img *img;
 110         size_t bufsz;
 111
 112         if (!iwl_is_ready_rf(priv))
 113                 return -EAGAIN;
 114
 115         /* default is to dump the entire data segment */
 116         if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
 117                 priv->dbgfs_sram_offset = 0x800000;
 118                 if (!priv->ucode_loaded)
 119                         return -EINVAL;
 120                 img = &priv->fw->img[priv->cur_ucode];
 121                 priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
 122         }
 123         len = priv->dbgfs_sram_len;
 124
 125         if (len == -4) {
 126                 device_format = true;
 127                 len = 4;
 128         }
 129
 130         bufsz =  50 + len * 4;
 131         buf = kmalloc(bufsz, GFP_KERNEL);
 132         if (!buf)
 133                 return -ENOMEM;
 134
 135         pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
 136                          len);
 137         pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
 138                         priv->dbgfs_sram_offset);
 139
 140         /* adjust sram address since reads are only on even u32 boundaries */
 141         offset = priv->dbgfs_sram_offset & 0x3;
 142         sram = priv->dbgfs_sram_offset & ~0x3;
 143
 144         /* read the first u32 from sram */
 145         val = iwl_trans_read_mem32(priv->trans, sram);
 146
 147         for (; len; len--) {
 148                 /* put the address at the start of every line */
 149                 if (i == 0)
 150                         pos += scnprintf(buf + pos, bufsz - pos,
 151                                 "%08X: ", sram + offset);
 152
 153                 if (device_format)
 154                         pos += scnprintf(buf + pos, bufsz - pos,
 155                                 "%02x", (val >> (8 * (3 - offset))) & 0xff);
 156                 else
 157                         pos += scnprintf(buf + pos, bufsz - pos,
 158                                 "%02x ", (val >> (8 * offset)) & 0xff);
 159
 160                 /* if all bytes processed, read the next u32 from sram */
 161                 if (++offset == 4) {
 162                         sram += 4;
 163                         offset = 0;
 164                         val = iwl_trans_read_mem32(priv->trans, sram);
 165                 }
 166
 167                 /* put in extra spaces and split lines for human readability */
 168                 if (++i == 16) {
 169                         i = 0;
 170                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 171                 } else if (!(i & 7)) {
 172                         pos += scnprintf(buf + pos, bufsz - pos, "   ");
 173                 } else if (!(i & 3)) {
 174                         pos += scnprintf(buf + pos, bufsz - pos, " ");
 175                 }
 176         }
 177         if (i)
 178                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 179
 180         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 181         kfree(buf);
 182         return ret;
 183 }
 184
 185 static ssize_t iwl_dbgfs_sram_write(struct file *file,
 186                                         const char __user *user_buf,
 187                                         size_t count, loff_t *ppos)
 188 {
 189         struct iwl_priv *priv = file->private_data;
 190         char buf[64];
 191         int buf_size;
 192         u32 offset, len;
 193
 194         memset(buf, 0, sizeof(buf));
 195         buf_size = min(count, sizeof(buf) -  1);
 196         if (copy_from_user(buf, user_buf, buf_size))
 197                 return -EFAULT;
 198
 199         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 200                 priv->dbgfs_sram_offset = offset;
 201                 priv->dbgfs_sram_len = len;
 202         } else if (sscanf(buf, "%x", &offset) == 1) {
 203                 priv->dbgfs_sram_offset = offset;
 204                 priv->dbgfs_sram_len = -4;
 205         } else {
 206                 priv->dbgfs_sram_offset = 0;
 207                 priv->dbgfs_sram_len = 0;
 208         }
 209
 210         return count;
 211 }
 212
 213 static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
 214                                           char __user *user_buf,
 215                                           size_t count, loff_t *ppos)
 216 {
 217         struct iwl_priv *priv = file->private_data;
 218         const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN];
 219
 220         if (!priv->wowlan_sram)
 221                 return -ENODATA;
 222
 223         return simple_read_from_buffer(user_buf, count, ppos,
 224                                        priv->wowlan_sram,
 225                                        img->sec[IWL_UCODE_SECTION_DATA].len);
 226 }
 227 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 228                                         size_t count, loff_t *ppos)
 229 {
 230         struct iwl_priv *priv = file->private_data;
 231         struct iwl_station_entry *station;
 232         struct iwl_tid_data *tid_data;
 233         char *buf;
 234         int i, j, pos = 0;
 235         ssize_t ret;
 236         /* Add 30 for initial string */
 237         const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
 238
 239         buf = kmalloc(bufsz, GFP_KERNEL);
 240         if (!buf)
 241                 return -ENOMEM;
 242
 243         pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
 244                         priv->num_stations);
 245
 246         for (i = 0; i < IWLAGN_STATION_COUNT; i++) {
 247                 station = &priv->stations[i];
 248                 if (!station->used)
 249                         continue;
 250                 pos += scnprintf(buf + pos, bufsz - pos,
 251                                  "station %d - addr: %pM, flags: %#x\n",
 252                                  i, station->sta.sta.addr,
 253                                  station->sta.station_flags_msk);
 254                 pos += scnprintf(buf + pos, bufsz - pos,
 255                                 "TID seqno  next_rclmd "
 256                                 "rate_n_flags state txq\n");
 257
 258                 for (j = 0; j < IWL_MAX_TID_COUNT; j++) {
 259                         tid_data = &priv->tid_data[i][j];
 260                         pos += scnprintf(buf + pos, bufsz - pos,
 261                                 "%d:  0x%.4x 0x%.4x     0x%.8x   "
 262                                 "%d     %.2d",
 263                                 j, tid_data->seq_number,
 264                                 tid_data->next_reclaimed,
 265                                 tid_data->agg.rate_n_flags,
 266                                 tid_data->agg.state,
 267                                 tid_data->agg.txq_id);
 268
 269                         if (tid_data->agg.wait_for_ba)
 270                                 pos += scnprintf(buf + pos, bufsz - pos,
 271                                                  " - waitforba");
 272                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 273                 }
 274
 275                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 276         }
 277
 278         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 279         kfree(buf);
 280         return ret;
 281 }
 282
 283 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
 284                                        char __user *user_buf,
 285                                        size_t count,
 286                                        loff_t *ppos)
 287 {
 288         ssize_t ret;
 289         struct iwl_priv *priv = file->private_data;
 290         int pos = 0, ofs = 0, buf_size = 0;
 291         const u8 *ptr;
 292         char *buf;
 293         u16 nvm_ver;
 294         size_t eeprom_len = priv->eeprom_blob_size;
 295         buf_size = 4 * eeprom_len + 256;
 296
 297         if (eeprom_len % 16)
 298                 return -ENODATA;
 299
 300         ptr = priv->eeprom_blob;
 301         if (!ptr)
 302                 return -ENOMEM;
 303
 304         /* 4 characters for byte 0xYY */
 305         buf = kzalloc(buf_size, GFP_KERNEL);
 306         if (!buf)
 307                 return -ENOMEM;
 308
 309         nvm_ver = priv->nvm_data->nvm_version;
 310         pos += scnprintf(buf + pos, buf_size - pos,
 311                          "NVM version: 0x%x\n", nvm_ver);
 312         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
 313                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
 314                 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
 315                                    buf_size - pos, 0);
 316                 pos += strlen(buf + pos);
 317                 if (buf_size - pos > 0)
 318                         buf[pos++] = '\n';
 319         }
 320
 321         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 322         kfree(buf);
 323         return ret;
 324 }
 325
 326 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 327                                        size_t count, loff_t *ppos)
 328 {
 329         struct iwl_priv *priv = file->private_data;
 330         struct ieee80211_channel *channels = NULL;
 331         const struct ieee80211_supported_band *supp_band = NULL;
 332         int pos = 0, i, bufsz = PAGE_SIZE;
 333         char *buf;
 334         ssize_t ret;
 335
 336         buf = kzalloc(bufsz, GFP_KERNEL);
 337         if (!buf)
 338                 return -ENOMEM;
 339
 340         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
 341         if (supp_band) {
 342                 channels = supp_band->channels;
 343
 344                 pos += scnprintf(buf + pos, bufsz - pos,
 345                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
 346                                 supp_band->n_channels);
 347
 348                 for (i = 0; i < supp_band->n_channels; i++)
 349                         pos += scnprintf(buf + pos, bufsz - pos,
 350                                         "%d: %ddBm: BSS%s%s, %s.\n",
 351                                         channels[i].hw_value,
 352                                         channels[i].max_power,
 353                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 354                                         " (IEEE 802.11h required)" : "",
 355                                         ((channels[i].flags & IEEE80211_CHAN_NO_IR)
 356                                         || (channels[i].flags &
 357                                         IEEE80211_CHAN_RADAR)) ? "" :
 358                                         ", IBSS",
 359                                         channels[i].flags &
 360                                         IEEE80211_CHAN_NO_IR ?
 361                                         "passive only" : "active/passive");
 362         }
 363         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
 364         if (supp_band) {
 365                 channels = supp_band->channels;
 366
 367                 pos += scnprintf(buf + pos, bufsz - pos,
 368                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
 369                                 supp_band->n_channels);
 370
 371                 for (i = 0; i < supp_band->n_channels; i++)
 372                         pos += scnprintf(buf + pos, bufsz - pos,
 373                                         "%d: %ddBm: BSS%s%s, %s.\n",
 374                                         channels[i].hw_value,
 375                                         channels[i].max_power,
 376                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 377                                         " (IEEE 802.11h required)" : "",
 378                                         ((channels[i].flags & IEEE80211_CHAN_NO_IR)
 379                                         || (channels[i].flags &
 380                                         IEEE80211_CHAN_RADAR)) ? "" :
 381                                         ", IBSS",
 382                                         channels[i].flags &
 383                                         IEEE80211_CHAN_NO_IR ?
 384                                         "passive only" : "active/passive");
 385         }
 386         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 387         kfree(buf);
 388         return ret;
 389 }
 390
 391 static ssize_t iwl_dbgfs_status_read(struct file *file,
 392                                                 char __user *user_buf,
 393                                                 size_t count, loff_t *ppos) {
 394
 395         struct iwl_priv *priv = file->private_data;
 396         char buf[512];
 397         int pos = 0;
 398         const size_t bufsz = sizeof(buf);
 399
 400         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 401                 test_bit(STATUS_RF_KILL_HW, &priv->status));
 402         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 403                 test_bit(STATUS_CT_KILL, &priv->status));
 404         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 405                 test_bit(STATUS_ALIVE, &priv->status));
 406         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 407                 test_bit(STATUS_READY, &priv->status));
 408         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 409                 test_bit(STATUS_EXIT_PENDING, &priv->status));
 410         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 411                 test_bit(STATUS_STATISTICS, &priv->status));
 412         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 413                 test_bit(STATUS_SCANNING, &priv->status));
 414         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 415                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
 416         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 417                 test_bit(STATUS_SCAN_HW, &priv->status));
 418         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 419                 test_bit(STATUS_POWER_PMI, &priv->status));
 420         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 421                 test_bit(STATUS_FW_ERROR, &priv->status));
 422         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 423 }
 424
 425 static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file,
 426                                         char __user *user_buf,
 427                                         size_t count, loff_t *ppos) {
 428
 429         struct iwl_priv *priv = file->private_data;
 430
 431         int pos = 0;
 432         int cnt = 0;
 433         char *buf;
 434         int bufsz = 24 * 64; /* 24 items * 64 char per item */
 435         ssize_t ret;
 436
 437         buf = kzalloc(bufsz, GFP_KERNEL);
 438         if (!buf)
 439                 return -ENOMEM;
 440
 441         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 442                 if (priv->rx_handlers_stats[cnt] > 0)
 443                         pos += scnprintf(buf + pos, bufsz - pos,
 444                                 "\tRx handler[%36s]:\t\t %u\n",
 445                                 iwl_dvm_get_cmd_string(cnt),
 446                                 priv->rx_handlers_stats[cnt]);
 447         }
 448
 449         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 450         kfree(buf);
 451         return ret;
 452 }
 453
 454 static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
 455                                          const char __user *user_buf,
 456                                          size_t count, loff_t *ppos)
 457 {
 458         struct iwl_priv *priv = file->private_data;
 459
 460         char buf[8];
 461         int buf_size;
 462         u32 reset_flag;
 463
 464         memset(buf, 0, sizeof(buf));
 465         buf_size = min(count, sizeof(buf) -  1);
 466         if (copy_from_user(buf, user_buf, buf_size))
 467                 return -EFAULT;
 468         if (sscanf(buf, "%x", &reset_flag) != 1)
 469                 return -EFAULT;
 470         if (reset_flag == 0)
 471                 memset(&priv->rx_handlers_stats[0], 0,
 472                         sizeof(priv->rx_handlers_stats));
 473
 474         return count;
 475 }
 476
 477 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 478                                        size_t count, loff_t *ppos)
 479 {
 480         struct iwl_priv *priv = file->private_data;
 481         struct iwl_rxon_context *ctx;
 482         int pos = 0, i;
 483         char buf[256 * NUM_IWL_RXON_CTX];
 484         const size_t bufsz = sizeof(buf);
 485
 486         for_each_context(priv, ctx) {
 487                 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
 488                                  ctx->ctxid);
 489                 for (i = 0; i < AC_NUM; i++) {
 490                         pos += scnprintf(buf + pos, bufsz - pos,
 491                                 "\tcw_min\tcw_max\taifsn\ttxop\n");
 492                         pos += scnprintf(buf + pos, bufsz - pos,
 493                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
 494                                 ctx->qos_data.def_qos_parm.ac[i].cw_min,
 495                                 ctx->qos_data.def_qos_parm.ac[i].cw_max,
 496                                 ctx->qos_data.def_qos_parm.ac[i].aifsn,
 497                                 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
 498                 }
 499                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 500         }
 501         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 502 }
 503
 504 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 505                                 char __user *user_buf,
 506                                 size_t count, loff_t *ppos)
 507 {
 508         struct iwl_priv *priv = file->private_data;
 509         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 510         struct iwl_tt_restriction *restriction;
 511         char buf[100];
 512         int pos = 0;
 513         const size_t bufsz = sizeof(buf);
 514
 515         pos += scnprintf(buf + pos, bufsz - pos,
 516                         "Thermal Throttling Mode: %s\n",
 517                         tt->advanced_tt ? "Advance" : "Legacy");
 518         pos += scnprintf(buf + pos, bufsz - pos,
 519                         "Thermal Throttling State: %d\n",
 520                         tt->state);
 521         if (tt->advanced_tt) {
 522                 restriction = tt->restriction + tt->state;
 523                 pos += scnprintf(buf + pos, bufsz - pos,
 524                                 "Tx mode: %d\n",
 525                                 restriction->tx_stream);
 526                 pos += scnprintf(buf + pos, bufsz - pos,
 527                                 "Rx mode: %d\n",
 528                                 restriction->rx_stream);
 529                 pos += scnprintf(buf + pos, bufsz - pos,
 530                                 "HT mode: %d\n",
 531                                 restriction->is_ht);
 532         }
 533         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 534 }
 535
 536 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 537                                          const char __user *user_buf,
 538                                          size_t count, loff_t *ppos)
 539 {
 540         struct iwl_priv *priv = file->private_data;
 541         char buf[8];
 542         int buf_size;
 543         int ht40;
 544
 545         memset(buf, 0, sizeof(buf));
 546         buf_size = min(count, sizeof(buf) -  1);
 547         if (copy_from_user(buf, user_buf, buf_size))
 548                 return -EFAULT;
 549         if (sscanf(buf, "%d", &ht40) != 1)
 550                 return -EFAULT;
 551         if (!iwl_is_any_associated(priv))
 552                 priv->disable_ht40 = ht40 ? true : false;
 553         else
 554                 return -EINVAL;
 555
 556         return count;
 557 }
 558
 559 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 560                                          char __user *user_buf,
 561                                          size_t count, loff_t *ppos)
 562 {
 563         struct iwl_priv *priv = file->private_data;
 564         char buf[100];
 565         int pos = 0;
 566         const size_t bufsz = sizeof(buf);
 567
 568         pos += scnprintf(buf + pos, bufsz - pos,
 569                         "11n 40MHz Mode: %s\n",
 570                         priv->disable_ht40 ? "Disabled" : "Enabled");
 571         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 572 }
 573
 574 static ssize_t iwl_dbgfs_temperature_read(struct file *file,
 575                                          char __user *user_buf,
 576                                          size_t count, loff_t *ppos)
 577 {
 578         struct iwl_priv *priv = file->private_data;
 579         char buf[8];
 580         int pos = 0;
 581         const size_t bufsz = sizeof(buf);
 582
 583         pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->temperature);
 584         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 585 }
 586
 587
 588 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 589                                                     const char __user *user_buf,
 590                                                     size_t count, loff_t *ppos)
 591 {
 592         struct iwl_priv *priv = file->private_data;
 593         char buf[8];
 594         int buf_size;
 595         int value;
 596
 597         memset(buf, 0, sizeof(buf));
 598         buf_size = min(count, sizeof(buf) -  1);
 599         if (copy_from_user(buf, user_buf, buf_size))
 600                 return -EFAULT;
 601
 602         if (sscanf(buf, "%d", &value) != 1)
 603                 return -EINVAL;
 604
 605         /*
 606          * Our users expect 0 to be "CAM", but 0 isn't actually
 607          * valid here. However, let's not confuse them and present
 608          * IWL_POWER_INDEX_1 as "1", not "0".
 609          */
 610         if (value == 0)
 611                 return -EINVAL;
 612         else if (value > 0)
 613                 value -= 1;
 614
 615         if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 616                 return -EINVAL;
 617
 618         if (!iwl_is_ready_rf(priv))
 619                 return -EAGAIN;
 620
 621         priv->power_data.debug_sleep_level_override = value;
 622
 623         mutex_lock(&priv->mutex);
 624         iwl_power_update_mode(priv, true);
 625         mutex_unlock(&priv->mutex);
 626
 627         return count;
 628 }
 629
 630 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 631                                                    char __user *user_buf,
 632                                                    size_t count, loff_t *ppos)
 633 {
 634         struct iwl_priv *priv = file->private_data;
 635         char buf[10];
 636         int pos, value;
 637         const size_t bufsz = sizeof(buf);
 638
 639         /* see the write function */
 640         value = priv->power_data.debug_sleep_level_override;
 641         if (value >= 0)
 642                 value += 1;
 643
 644         pos = scnprintf(buf, bufsz, "%d\n", value);
 645         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 646 }
 647
 648 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 649                                                     char __user *user_buf,
 650                                                     size_t count, loff_t *ppos)
 651 {
 652         struct iwl_priv *priv = file->private_data;
 653         char buf[200];
 654         int pos = 0, i;
 655         const size_t bufsz = sizeof(buf);
 656         struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 657
 658         pos += scnprintf(buf + pos, bufsz - pos,
 659                          "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 660         pos += scnprintf(buf + pos, bufsz - pos,
 661                          "RX/TX timeout: %d/%d usec\n",
 662                          le32_to_cpu(cmd->rx_data_timeout),
 663                          le32_to_cpu(cmd->tx_data_timeout));
 664         for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 665                 pos += scnprintf(buf + pos, bufsz - pos,
 666                                  "sleep_interval[%d]: %d\n", i,
 667                                  le32_to_cpu(cmd->sleep_interval[i]));
 668
 669         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 670 }
 671
 672 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 673 DEBUGFS_READ_FILE_OPS(wowlan_sram);
 674 DEBUGFS_READ_FILE_OPS(nvm);
 675 DEBUGFS_READ_FILE_OPS(stations);
 676 DEBUGFS_READ_FILE_OPS(channels);
 677 DEBUGFS_READ_FILE_OPS(status);
 678 DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers);
 679 DEBUGFS_READ_FILE_OPS(qos);
 680 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 681 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 682 DEBUGFS_READ_FILE_OPS(temperature);
 683 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 684 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 685
 686 static const char *fmt_value = "  %-30s %10u\n";
 687 static const char *fmt_hex   = "  %-30s       0x%02X\n";
 688 static const char *fmt_table = "  %-30s %10u  %10u  %10u  %10u\n";
 689 static const char *fmt_header =
 690         "%-32s    current  cumulative       delta         max\n";
 691
 692 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
 693 {
 694         int p = 0;
 695         u32 flag;
 696
 697         lockdep_assert_held(&priv->statistics.lock);
 698
 699         flag = le32_to_cpu(priv->statistics.flag);
 700
 701         p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
 702         if (flag & UCODE_STATISTICS_CLEAR_MSK)
 703                 p += scnprintf(buf + p, bufsz - p,
 704                 "\tStatistics have been cleared\n");
 705         p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
 706                 (flag & UCODE_STATISTICS_FREQUENCY_MSK)
 707                 ? "2.4 GHz" : "5.2 GHz");
 708         p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
 709                 (flag & UCODE_STATISTICS_NARROW_BAND_MSK)
 710                  ? "enabled" : "disabled");
 711
 712         return p;
 713 }
 714
 715 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
 716                                         char __user *user_buf,
 717                                         size_t count, loff_t *ppos)
 718 {
 719         struct iwl_priv *priv = file->private_data;
 720         int pos = 0;
 721         char *buf;
 722         int bufsz = sizeof(struct statistics_rx_phy) * 40 +
 723                     sizeof(struct statistics_rx_non_phy) * 40 +
 724                     sizeof(struct statistics_rx_ht_phy) * 40 + 400;
 725         ssize_t ret;
 726         struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
 727         struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
 728         struct statistics_rx_non_phy *general, *accum_general;
 729         struct statistics_rx_non_phy *delta_general, *max_general;
 730         struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
 731
 732         if (!iwl_is_alive(priv))
 733                 return -EAGAIN;
 734
 735         buf = kzalloc(bufsz, GFP_KERNEL);
 736         if (!buf)
 737                 return -ENOMEM;
 738
 739         /*
 740          * the statistic information display here is based on
 741          * the last statistics notification from uCode
 742          * might not reflect the current uCode activity
 743          */
 744         spin_lock_bh(&priv->statistics.lock);
 745         ofdm = &priv->statistics.rx_ofdm;
 746         cck = &priv->statistics.rx_cck;
 747         general = &priv->statistics.rx_non_phy;
 748         ht = &priv->statistics.rx_ofdm_ht;
 749         accum_ofdm = &priv->accum_stats.rx_ofdm;
 750         accum_cck = &priv->accum_stats.rx_cck;
 751         accum_general = &priv->accum_stats.rx_non_phy;
 752         accum_ht = &priv->accum_stats.rx_ofdm_ht;
 753         delta_ofdm = &priv->delta_stats.rx_ofdm;
 754         delta_cck = &priv->delta_stats.rx_cck;
 755         delta_general = &priv->delta_stats.rx_non_phy;
 756         delta_ht = &priv->delta_stats.rx_ofdm_ht;
 757         max_ofdm = &priv->max_delta_stats.rx_ofdm;
 758         max_cck = &priv->max_delta_stats.rx_cck;
 759         max_general = &priv->max_delta_stats.rx_non_phy;
 760         max_ht = &priv->max_delta_stats.rx_ofdm_ht;
 761
 762         pos += iwl_statistics_flag(priv, buf, bufsz);
 763         pos += scnprintf(buf + pos, bufsz - pos,
 764                          fmt_header, "Statistics_Rx - OFDM:");
 765         pos += scnprintf(buf + pos, bufsz - pos,
 766                          fmt_table, "ina_cnt:",
 767                          le32_to_cpu(ofdm->ina_cnt),
 768                          accum_ofdm->ina_cnt,
 769                          delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
 770         pos += scnprintf(buf + pos, bufsz - pos,
 771                          fmt_table, "fina_cnt:",
 772                          le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
 773                          delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
 774         pos += scnprintf(buf + pos, bufsz - pos,
 775                          fmt_table, "plcp_err:",
 776                          le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
 777                          delta_ofdm->plcp_err, max_ofdm->plcp_err);
 778         pos += scnprintf(buf + pos, bufsz - pos,
 779                          fmt_table, "crc32_err:",
 780                          le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
 781                          delta_ofdm->crc32_err, max_ofdm->crc32_err);
 782         pos += scnprintf(buf + pos, bufsz - pos,
 783                          fmt_table, "overrun_err:",
 784                          le32_to_cpu(ofdm->overrun_err),
 785                          accum_ofdm->overrun_err, delta_ofdm->overrun_err,
 786                          max_ofdm->overrun_err);
 787         pos += scnprintf(buf + pos, bufsz - pos,
 788                          fmt_table, "early_overrun_err:",
 789                          le32_to_cpu(ofdm->early_overrun_err),
 790                          accum_ofdm->early_overrun_err,
 791                          delta_ofdm->early_overrun_err,
 792                          max_ofdm->early_overrun_err);
 793         pos += scnprintf(buf + pos, bufsz - pos,
 794                          fmt_table, "crc32_good:",
 795                          le32_to_cpu(ofdm->crc32_good),
 796                          accum_ofdm->crc32_good, delta_ofdm->crc32_good,
 797                          max_ofdm->crc32_good);
 798         pos += scnprintf(buf + pos, bufsz - pos,
 799                          fmt_table, "false_alarm_cnt:",
 800                          le32_to_cpu(ofdm->false_alarm_cnt),
 801                          accum_ofdm->false_alarm_cnt,
 802                          delta_ofdm->false_alarm_cnt,
 803                          max_ofdm->false_alarm_cnt);
 804         pos += scnprintf(buf + pos, bufsz - pos,
 805                          fmt_table, "fina_sync_err_cnt:",
 806                          le32_to_cpu(ofdm->fina_sync_err_cnt),
 807                          accum_ofdm->fina_sync_err_cnt,
 808                          delta_ofdm->fina_sync_err_cnt,
 809                          max_ofdm->fina_sync_err_cnt);
 810         pos += scnprintf(buf + pos, bufsz - pos,
 811                          fmt_table, "sfd_timeout:",
 812                          le32_to_cpu(ofdm->sfd_timeout),
 813                          accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
 814                          max_ofdm->sfd_timeout);
 815         pos += scnprintf(buf + pos, bufsz - pos,
 816                          fmt_table, "fina_timeout:",
 817                          le32_to_cpu(ofdm->fina_timeout),
 818                          accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
 819                          max_ofdm->fina_timeout);
 820         pos += scnprintf(buf + pos, bufsz - pos,
 821                          fmt_table, "unresponded_rts:",
 822                          le32_to_cpu(ofdm->unresponded_rts),
 823                          accum_ofdm->unresponded_rts,
 824                          delta_ofdm->unresponded_rts,
 825                          max_ofdm->unresponded_rts);
 826         pos += scnprintf(buf + pos, bufsz - pos,
 827                          fmt_table, "rxe_frame_lmt_ovrun:",
 828                          le32_to_cpu(ofdm->rxe_frame_limit_overrun),
 829                          accum_ofdm->rxe_frame_limit_overrun,
 830                          delta_ofdm->rxe_frame_limit_overrun,
 831                          max_ofdm->rxe_frame_limit_overrun);
 832         pos += scnprintf(buf + pos, bufsz - pos,
 833                          fmt_table, "sent_ack_cnt:",
 834                          le32_to_cpu(ofdm->sent_ack_cnt),
 835                          accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
 836                          max_ofdm->sent_ack_cnt);
 837         pos += scnprintf(buf + pos, bufsz - pos,
 838                          fmt_table, "sent_cts_cnt:",
 839                          le32_to_cpu(ofdm->sent_cts_cnt),
 840                          accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
 841                          max_ofdm->sent_cts_cnt);
 842         pos += scnprintf(buf + pos, bufsz - pos,
 843                          fmt_table, "sent_ba_rsp_cnt:",
 844                          le32_to_cpu(ofdm->sent_ba_rsp_cnt),
 845                          accum_ofdm->sent_ba_rsp_cnt,
 846                          delta_ofdm->sent_ba_rsp_cnt,
 847                          max_ofdm->sent_ba_rsp_cnt);
 848         pos += scnprintf(buf + pos, bufsz - pos,
 849                          fmt_table, "dsp_self_kill:",
 850                          le32_to_cpu(ofdm->dsp_self_kill),
 851                          accum_ofdm->dsp_self_kill,
 852                          delta_ofdm->dsp_self_kill,
 853                          max_ofdm->dsp_self_kill);
 854         pos += scnprintf(buf + pos, bufsz - pos,
 855                          fmt_table, "mh_format_err:",
 856                          le32_to_cpu(ofdm->mh_format_err),
 857                          accum_ofdm->mh_format_err,
 858                          delta_ofdm->mh_format_err,
 859                          max_ofdm->mh_format_err);
 860         pos += scnprintf(buf + pos, bufsz - pos,
 861                          fmt_table, "re_acq_main_rssi_sum:",
 862                          le32_to_cpu(ofdm->re_acq_main_rssi_sum),
 863                          accum_ofdm->re_acq_main_rssi_sum,
 864                          delta_ofdm->re_acq_main_rssi_sum,
 865                          max_ofdm->re_acq_main_rssi_sum);
 866
 867         pos += scnprintf(buf + pos, bufsz - pos,
 868                          fmt_header, "Statistics_Rx - CCK:");
 869         pos += scnprintf(buf + pos, bufsz - pos,
 870                          fmt_table, "ina_cnt:",
 871                          le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
 872                          delta_cck->ina_cnt, max_cck->ina_cnt);
 873         pos += scnprintf(buf + pos, bufsz - pos,
 874                          fmt_table, "fina_cnt:",
 875                          le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
 876                          delta_cck->fina_cnt, max_cck->fina_cnt);
 877         pos += scnprintf(buf + pos, bufsz - pos,
 878                          fmt_table, "plcp_err:",
 879                          le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
 880                          delta_cck->plcp_err, max_cck->plcp_err);
 881         pos += scnprintf(buf + pos, bufsz - pos,
 882                          fmt_table, "crc32_err:",
 883                          le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
 884                          delta_cck->crc32_err, max_cck->crc32_err);
 885         pos += scnprintf(buf + pos, bufsz - pos,
 886                          fmt_table, "overrun_err:",
 887                          le32_to_cpu(cck->overrun_err),
 888                          accum_cck->overrun_err, delta_cck->overrun_err,
 889                          max_cck->overrun_err);
 890         pos += scnprintf(buf + pos, bufsz - pos,
 891                          fmt_table, "early_overrun_err:",
 892                          le32_to_cpu(cck->early_overrun_err),
 893                          accum_cck->early_overrun_err,
 894                          delta_cck->early_overrun_err,
 895                          max_cck->early_overrun_err);
 896         pos += scnprintf(buf + pos, bufsz - pos,
 897                          fmt_table, "crc32_good:",
 898                          le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
 899                          delta_cck->crc32_good, max_cck->crc32_good);
 900         pos += scnprintf(buf + pos, bufsz - pos,
 901                          fmt_table, "false_alarm_cnt:",
 902                          le32_to_cpu(cck->false_alarm_cnt),
 903                          accum_cck->false_alarm_cnt,
 904                          delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
 905         pos += scnprintf(buf + pos, bufsz - pos,
 906                          fmt_table, "fina_sync_err_cnt:",
 907                          le32_to_cpu(cck->fina_sync_err_cnt),
 908                          accum_cck->fina_sync_err_cnt,
 909                          delta_cck->fina_sync_err_cnt,
 910                          max_cck->fina_sync_err_cnt);
 911         pos += scnprintf(buf + pos, bufsz - pos,
 912                          fmt_table, "sfd_timeout:",
 913                          le32_to_cpu(cck->sfd_timeout),
 914                          accum_cck->sfd_timeout, delta_cck->sfd_timeout,
 915                          max_cck->sfd_timeout);
 916         pos += scnprintf(buf + pos, bufsz - pos,
 917                          fmt_table, "fina_timeout:",
 918                          le32_to_cpu(cck->fina_timeout),
 919                          accum_cck->fina_timeout, delta_cck->fina_timeout,
 920                          max_cck->fina_timeout);
 921         pos += scnprintf(buf + pos, bufsz - pos,
 922                          fmt_table, "unresponded_rts:",
 923                          le32_to_cpu(cck->unresponded_rts),
 924                          accum_cck->unresponded_rts, delta_cck->unresponded_rts,
 925                          max_cck->unresponded_rts);
 926         pos += scnprintf(buf + pos, bufsz - pos,
 927                          fmt_table, "rxe_frame_lmt_ovrun:",
 928                          le32_to_cpu(cck->rxe_frame_limit_overrun),
 929                          accum_cck->rxe_frame_limit_overrun,
 930                          delta_cck->rxe_frame_limit_overrun,
 931                          max_cck->rxe_frame_limit_overrun);
 932         pos += scnprintf(buf + pos, bufsz - pos,
 933                          fmt_table, "sent_ack_cnt:",
 934                          le32_to_cpu(cck->sent_ack_cnt),
 935                          accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
 936                          max_cck->sent_ack_cnt);
 937         pos += scnprintf(buf + pos, bufsz - pos,
 938                          fmt_table, "sent_cts_cnt:",
 939                          le32_to_cpu(cck->sent_cts_cnt),
 940                          accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
 941                          max_cck->sent_cts_cnt);
 942         pos += scnprintf(buf + pos, bufsz - pos,
 943                          fmt_table, "sent_ba_rsp_cnt:",
 944                          le32_to_cpu(cck->sent_ba_rsp_cnt),
 945                          accum_cck->sent_ba_rsp_cnt,
 946                          delta_cck->sent_ba_rsp_cnt,
 947                          max_cck->sent_ba_rsp_cnt);
 948         pos += scnprintf(buf + pos, bufsz - pos,
 949                          fmt_table, "dsp_self_kill:",
 950                          le32_to_cpu(cck->dsp_self_kill),
 951                          accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
 952                          max_cck->dsp_self_kill);
 953         pos += scnprintf(buf + pos, bufsz - pos,
 954                          fmt_table, "mh_format_err:",
 955                          le32_to_cpu(cck->mh_format_err),
 956                          accum_cck->mh_format_err, delta_cck->mh_format_err,
 957                          max_cck->mh_format_err);
 958         pos += scnprintf(buf + pos, bufsz - pos,
 959                          fmt_table, "re_acq_main_rssi_sum:",
 960                          le32_to_cpu(cck->re_acq_main_rssi_sum),
 961                          accum_cck->re_acq_main_rssi_sum,
 962                          delta_cck->re_acq_main_rssi_sum,
 963                          max_cck->re_acq_main_rssi_sum);
 964
 965         pos += scnprintf(buf + pos, bufsz - pos,
 966                          fmt_header, "Statistics_Rx - GENERAL:");
 967         pos += scnprintf(buf + pos, bufsz - pos,
 968                          fmt_table, "bogus_cts:",
 969                          le32_to_cpu(general->bogus_cts),
 970                          accum_general->bogus_cts, delta_general->bogus_cts,
 971                          max_general->bogus_cts);
 972         pos += scnprintf(buf + pos, bufsz - pos,
 973                          fmt_table, "bogus_ack:",
 974                          le32_to_cpu(general->bogus_ack),
 975                          accum_general->bogus_ack, delta_general->bogus_ack,
 976                          max_general->bogus_ack);
 977         pos += scnprintf(buf + pos, bufsz - pos,
 978                          fmt_table, "non_bssid_frames:",
 979                          le32_to_cpu(general->non_bssid_frames),
 980                          accum_general->non_bssid_frames,
 981                          delta_general->non_bssid_frames,
 982                          max_general->non_bssid_frames);
 983         pos += scnprintf(buf + pos, bufsz - pos,
 984                          fmt_table, "filtered_frames:",
 985                          le32_to_cpu(general->filtered_frames),
 986                          accum_general->filtered_frames,
 987                          delta_general->filtered_frames,
 988                          max_general->filtered_frames);
 989         pos += scnprintf(buf + pos, bufsz - pos,
 990                          fmt_table, "non_channel_beacons:",
 991                          le32_to_cpu(general->non_channel_beacons),
 992                          accum_general->non_channel_beacons,
 993                          delta_general->non_channel_beacons,
 994                          max_general->non_channel_beacons);
 995         pos += scnprintf(buf + pos, bufsz - pos,
 996                          fmt_table, "channel_beacons:",
 997                          le32_to_cpu(general->channel_beacons),
 998                          accum_general->channel_beacons,
 999                          delta_general->channel_beacons,
1000                          max_general->channel_beacons);
1001         pos += scnprintf(buf + pos, bufsz - pos,
1002                          fmt_table, "num_missed_bcon:",
1003                          le32_to_cpu(general->num_missed_bcon),
1004                          accum_general->num_missed_bcon,
1005                          delta_general->num_missed_bcon,
1006                          max_general->num_missed_bcon);
1007         pos += scnprintf(buf + pos, bufsz - pos,
1008                          fmt_table, "adc_rx_saturation_time:",
1009                          le32_to_cpu(general->adc_rx_saturation_time),
1010                          accum_general->adc_rx_saturation_time,
1011                          delta_general->adc_rx_saturation_time,
1012                          max_general->adc_rx_saturation_time);
1013         pos += scnprintf(buf + pos, bufsz - pos,
1014                          fmt_table, "ina_detect_search_tm:",
1015                          le32_to_cpu(general->ina_detection_search_time),
1016                          accum_general->ina_detection_search_time,
1017                          delta_general->ina_detection_search_time,
1018                          max_general->ina_detection_search_time);
1019         pos += scnprintf(buf + pos, bufsz - pos,
1020                          fmt_table, "beacon_silence_rssi_a:",
1021                          le32_to_cpu(general->beacon_silence_rssi_a),
1022                          accum_general->beacon_silence_rssi_a,
1023                          delta_general->beacon_silence_rssi_a,
1024                          max_general->beacon_silence_rssi_a);
1025         pos += scnprintf(buf + pos, bufsz - pos,
1026                          fmt_table, "beacon_silence_rssi_b:",
1027                          le32_to_cpu(general->beacon_silence_rssi_b),
1028                          accum_general->beacon_silence_rssi_b,
1029                          delta_general->beacon_silence_rssi_b,
1030                          max_general->beacon_silence_rssi_b);
1031         pos += scnprintf(buf + pos, bufsz - pos,
1032                          fmt_table, "beacon_silence_rssi_c:",
1033                          le32_to_cpu(general->beacon_silence_rssi_c),
1034                          accum_general->beacon_silence_rssi_c,
1035                          delta_general->beacon_silence_rssi_c,
1036                          max_general->beacon_silence_rssi_c);
1037         pos += scnprintf(buf + pos, bufsz - pos,
1038                          fmt_table, "interference_data_flag:",
1039                          le32_to_cpu(general->interference_data_flag),
1040                          accum_general->interference_data_flag,
1041                          delta_general->interference_data_flag,
1042                          max_general->interference_data_flag);
1043         pos += scnprintf(buf + pos, bufsz - pos,
1044                          fmt_table, "channel_load:",
1045                          le32_to_cpu(general->channel_load),
1046                          accum_general->channel_load,
1047                          delta_general->channel_load,
1048                          max_general->channel_load);
1049         pos += scnprintf(buf + pos, bufsz - pos,
1050                          fmt_table, "dsp_false_alarms:",
1051                          le32_to_cpu(general->dsp_false_alarms),
1052                          accum_general->dsp_false_alarms,
1053                          delta_general->dsp_false_alarms,
1054                          max_general->dsp_false_alarms);
1055         pos += scnprintf(buf + pos, bufsz - pos,
1056                          fmt_table, "beacon_rssi_a:",
1057                          le32_to_cpu(general->beacon_rssi_a),
1058                          accum_general->beacon_rssi_a,
1059                          delta_general->beacon_rssi_a,
1060                          max_general->beacon_rssi_a);
1061         pos += scnprintf(buf + pos, bufsz - pos,
1062                          fmt_table, "beacon_rssi_b:",
1063                          le32_to_cpu(general->beacon_rssi_b),
1064                          accum_general->beacon_rssi_b,
1065                          delta_general->beacon_rssi_b,
1066                          max_general->beacon_rssi_b);
1067         pos += scnprintf(buf + pos, bufsz - pos,
1068                          fmt_table, "beacon_rssi_c:",
1069                          le32_to_cpu(general->beacon_rssi_c),
1070                          accum_general->beacon_rssi_c,
1071                          delta_general->beacon_rssi_c,
1072                          max_general->beacon_rssi_c);
1073         pos += scnprintf(buf + pos, bufsz - pos,
1074                          fmt_table, "beacon_energy_a:",
1075                          le32_to_cpu(general->beacon_energy_a),
1076                          accum_general->beacon_energy_a,
1077                          delta_general->beacon_energy_a,
1078                          max_general->beacon_energy_a);
1079         pos += scnprintf(buf + pos, bufsz - pos,
1080                          fmt_table, "beacon_energy_b:",
1081                          le32_to_cpu(general->beacon_energy_b),
1082                          accum_general->beacon_energy_b,
1083                          delta_general->beacon_energy_b,
1084                          max_general->beacon_energy_b);
1085         pos += scnprintf(buf + pos, bufsz - pos,
1086                          fmt_table, "beacon_energy_c:",
1087                          le32_to_cpu(general->beacon_energy_c),
1088                          accum_general->beacon_energy_c,
1089                          delta_general->beacon_energy_c,
1090                          max_general->beacon_energy_c);
1091
1092         pos += scnprintf(buf + pos, bufsz - pos,
1093                          fmt_header, "Statistics_Rx - OFDM_HT:");
1094         pos += scnprintf(buf + pos, bufsz - pos,
1095                          fmt_table, "plcp_err:",
1096                          le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1097                          delta_ht->plcp_err, max_ht->plcp_err);
1098         pos += scnprintf(buf + pos, bufsz - pos,
1099                          fmt_table, "overrun_err:",
1100                          le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1101                          delta_ht->overrun_err, max_ht->overrun_err);
1102         pos += scnprintf(buf + pos, bufsz - pos,
1103                          fmt_table, "early_overrun_err:",
1104                          le32_to_cpu(ht->early_overrun_err),
1105                          accum_ht->early_overrun_err,
1106                          delta_ht->early_overrun_err,
1107                          max_ht->early_overrun_err);
1108         pos += scnprintf(buf + pos, bufsz - pos,
1109                          fmt_table, "crc32_good:",
1110                          le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1111                          delta_ht->crc32_good, max_ht->crc32_good);
1112         pos += scnprintf(buf + pos, bufsz - pos,
1113                          fmt_table, "crc32_err:",
1114                          le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1115                          delta_ht->crc32_err, max_ht->crc32_err);
1116         pos += scnprintf(buf + pos, bufsz - pos,
1117                          fmt_table, "mh_format_err:",
1118                          le32_to_cpu(ht->mh_format_err),
1119                          accum_ht->mh_format_err,
1120                          delta_ht->mh_format_err, max_ht->mh_format_err);
1121         pos += scnprintf(buf + pos, bufsz - pos,
1122                          fmt_table, "agg_crc32_good:",
1123                          le32_to_cpu(ht->agg_crc32_good),
1124                          accum_ht->agg_crc32_good,
1125                          delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1126         pos += scnprintf(buf + pos, bufsz - pos,
1127                          fmt_table, "agg_mpdu_cnt:",
1128                          le32_to_cpu(ht->agg_mpdu_cnt),
1129                          accum_ht->agg_mpdu_cnt,
1130                          delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1131         pos += scnprintf(buf + pos, bufsz - pos,
1132                          fmt_table, "agg_cnt:",
1133                          le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1134                          delta_ht->agg_cnt, max_ht->agg_cnt);
1135         pos += scnprintf(buf + pos, bufsz - pos,
1136                          fmt_table, "unsupport_mcs:",
1137                          le32_to_cpu(ht->unsupport_mcs),
1138                          accum_ht->unsupport_mcs,
1139                          delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1140
1141         spin_unlock_bh(&priv->statistics.lock);
1142
1143         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1144         kfree(buf);
1145         return ret;
1146 }
1147
1148 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1149                                         char __user *user_buf,
1150                                         size_t count, loff_t *ppos)
1151 {
1152         struct iwl_priv *priv = file->private_data;
1153         int pos = 0;
1154         char *buf;
1155         int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1156         ssize_t ret;
1157         struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1158
1159         if (!iwl_is_alive(priv))
1160                 return -EAGAIN;
1161
1162         buf = kzalloc(bufsz, GFP_KERNEL);
1163         if (!buf)
1164                 return -ENOMEM;
1165
1166         /* the statistic information display here is based on
1167          * the last statistics notification from uCode
1168          * might not reflect the current uCode activity
1169          */
1170         spin_lock_bh(&priv->statistics.lock);
1171
1172         tx = &priv->statistics.tx;
1173         accum_tx = &priv->accum_stats.tx;
1174         delta_tx = &priv->delta_stats.tx;
1175         max_tx = &priv->max_delta_stats.tx;
1176
1177         pos += iwl_statistics_flag(priv, buf, bufsz);
1178         pos += scnprintf(buf + pos, bufsz - pos,
1179                          fmt_header, "Statistics_Tx:");
1180         pos += scnprintf(buf + pos, bufsz - pos,
1181                          fmt_table, "preamble:",
1182                          le32_to_cpu(tx->preamble_cnt),
1183                          accum_tx->preamble_cnt,
1184                          delta_tx->preamble_cnt, max_tx->preamble_cnt);
1185         pos += scnprintf(buf + pos, bufsz - pos,
1186                          fmt_table, "rx_detected_cnt:",
1187                          le32_to_cpu(tx->rx_detected_cnt),
1188                          accum_tx->rx_detected_cnt,
1189                          delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1190         pos += scnprintf(buf + pos, bufsz - pos,
1191                          fmt_table, "bt_prio_defer_cnt:",
1192                          le32_to_cpu(tx->bt_prio_defer_cnt),
1193                          accum_tx->bt_prio_defer_cnt,
1194                          delta_tx->bt_prio_defer_cnt,
1195                          max_tx->bt_prio_defer_cnt);
1196         pos += scnprintf(buf + pos, bufsz - pos,
1197                          fmt_table, "bt_prio_kill_cnt:",
1198                          le32_to_cpu(tx->bt_prio_kill_cnt),
1199                          accum_tx->bt_prio_kill_cnt,
1200                          delta_tx->bt_prio_kill_cnt,
1201                          max_tx->bt_prio_kill_cnt);
1202         pos += scnprintf(buf + pos, bufsz - pos,
1203                          fmt_table, "few_bytes_cnt:",
1204                          le32_to_cpu(tx->few_bytes_cnt),
1205                          accum_tx->few_bytes_cnt,
1206                          delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1207         pos += scnprintf(buf + pos, bufsz - pos,
1208                          fmt_table, "cts_timeout:",
1209                          le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1210                          delta_tx->cts_timeout, max_tx->cts_timeout);
1211         pos += scnprintf(buf + pos, bufsz - pos,
1212                          fmt_table, "ack_timeout:",
1213                          le32_to_cpu(tx->ack_timeout),
1214                          accum_tx->ack_timeout,
1215                          delta_tx->ack_timeout, max_tx->ack_timeout);
1216         pos += scnprintf(buf + pos, bufsz - pos,
1217                          fmt_table, "expected_ack_cnt:",
1218                          le32_to_cpu(tx->expected_ack_cnt),
1219                          accum_tx->expected_ack_cnt,
1220                          delta_tx->expected_ack_cnt,
1221                          max_tx->expected_ack_cnt);
1222         pos += scnprintf(buf + pos, bufsz - pos,
1223                          fmt_table, "actual_ack_cnt:",
1224                          le32_to_cpu(tx->actual_ack_cnt),
1225                          accum_tx->actual_ack_cnt,
1226                          delta_tx->actual_ack_cnt,
1227                          max_tx->actual_ack_cnt);
1228         pos += scnprintf(buf + pos, bufsz - pos,
1229                          fmt_table, "dump_msdu_cnt:",
1230                          le32_to_cpu(tx->dump_msdu_cnt),
1231                          accum_tx->dump_msdu_cnt,
1232                          delta_tx->dump_msdu_cnt,
1233                          max_tx->dump_msdu_cnt);
1234         pos += scnprintf(buf + pos, bufsz - pos,
1235                          fmt_table, "abort_nxt_frame_mismatch:",
1236                          le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1237                          accum_tx->burst_abort_next_frame_mismatch_cnt,
1238                          delta_tx->burst_abort_next_frame_mismatch_cnt,
1239                          max_tx->burst_abort_next_frame_mismatch_cnt);
1240         pos += scnprintf(buf + pos, bufsz - pos,
1241                          fmt_table, "abort_missing_nxt_frame:",
1242                          le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1243                          accum_tx->burst_abort_missing_next_frame_cnt,
1244                          delta_tx->burst_abort_missing_next_frame_cnt,
1245                          max_tx->burst_abort_missing_next_frame_cnt);
1246         pos += scnprintf(buf + pos, bufsz - pos,
1247                          fmt_table, "cts_timeout_collision:",
1248                          le32_to_cpu(tx->cts_timeout_collision),
1249                          accum_tx->cts_timeout_collision,
1250                          delta_tx->cts_timeout_collision,
1251                          max_tx->cts_timeout_collision);
1252         pos += scnprintf(buf + pos, bufsz - pos,
1253                          fmt_table, "ack_ba_timeout_collision:",
1254                          le32_to_cpu(tx->ack_or_ba_timeout_collision),
1255                          accum_tx->ack_or_ba_timeout_collision,
1256                          delta_tx->ack_or_ba_timeout_collision,
1257                          max_tx->ack_or_ba_timeout_collision);
1258         pos += scnprintf(buf + pos, bufsz - pos,
1259                          fmt_table, "agg ba_timeout:",
1260                          le32_to_cpu(tx->agg.ba_timeout),
1261                          accum_tx->agg.ba_timeout,
1262                          delta_tx->agg.ba_timeout,
1263                          max_tx->agg.ba_timeout);
1264         pos += scnprintf(buf + pos, bufsz - pos,
1265                          fmt_table, "agg ba_resched_frames:",
1266                          le32_to_cpu(tx->agg.ba_reschedule_frames),
1267                          accum_tx->agg.ba_reschedule_frames,
1268                          delta_tx->agg.ba_reschedule_frames,
1269                          max_tx->agg.ba_reschedule_frames);
1270         pos += scnprintf(buf + pos, bufsz - pos,
1271                          fmt_table, "agg scd_query_agg_frame:",
1272                          le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1273                          accum_tx->agg.scd_query_agg_frame_cnt,
1274                          delta_tx->agg.scd_query_agg_frame_cnt,
1275                          max_tx->agg.scd_query_agg_frame_cnt);
1276         pos += scnprintf(buf + pos, bufsz - pos,
1277                          fmt_table, "agg scd_query_no_agg:",
1278                          le32_to_cpu(tx->agg.scd_query_no_agg),
1279                          accum_tx->agg.scd_query_no_agg,
1280                          delta_tx->agg.scd_query_no_agg,
1281                          max_tx->agg.scd_query_no_agg);
1282         pos += scnprintf(buf + pos, bufsz - pos,
1283                          fmt_table, "agg scd_query_agg:",
1284                          le32_to_cpu(tx->agg.scd_query_agg),
1285                          accum_tx->agg.scd_query_agg,
1286                          delta_tx->agg.scd_query_agg,
1287                          max_tx->agg.scd_query_agg);
1288         pos += scnprintf(buf + pos, bufsz - pos,
1289                          fmt_table, "agg scd_query_mismatch:",
1290                          le32_to_cpu(tx->agg.scd_query_mismatch),
1291                          accum_tx->agg.scd_query_mismatch,
1292                          delta_tx->agg.scd_query_mismatch,
1293                          max_tx->agg.scd_query_mismatch);
1294         pos += scnprintf(buf + pos, bufsz - pos,
1295                          fmt_table, "agg frame_not_ready:",
1296                          le32_to_cpu(tx->agg.frame_not_ready),
1297                          accum_tx->agg.frame_not_ready,
1298                          delta_tx->agg.frame_not_ready,
1299                          max_tx->agg.frame_not_ready);
1300         pos += scnprintf(buf + pos, bufsz - pos,
1301                          fmt_table, "agg underrun:",
1302                          le32_to_cpu(tx->agg.underrun),
1303                          accum_tx->agg.underrun,
1304                          delta_tx->agg.underrun, max_tx->agg.underrun);
1305         pos += scnprintf(buf + pos, bufsz - pos,
1306                          fmt_table, "agg bt_prio_kill:",
1307                          le32_to_cpu(tx->agg.bt_prio_kill),
1308                          accum_tx->agg.bt_prio_kill,
1309                          delta_tx->agg.bt_prio_kill,
1310                          max_tx->agg.bt_prio_kill);
1311         pos += scnprintf(buf + pos, bufsz - pos,
1312                          fmt_table, "agg rx_ba_rsp_cnt:",
1313                          le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1314                          accum_tx->agg.rx_ba_rsp_cnt,
1315                          delta_tx->agg.rx_ba_rsp_cnt,
1316                          max_tx->agg.rx_ba_rsp_cnt);
1317
1318         if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
1319                 pos += scnprintf(buf + pos, bufsz - pos,
1320                         "tx power: (1/2 dB step)\n");
1321                 if ((priv->nvm_data->valid_tx_ant & ANT_A) &&
1322                     tx->tx_power.ant_a)
1323                         pos += scnprintf(buf + pos, bufsz - pos,
1324                                         fmt_hex, "antenna A:",
1325                                         tx->tx_power.ant_a);
1326                 if ((priv->nvm_data->valid_tx_ant & ANT_B) &&
1327                     tx->tx_power.ant_b)
1328                         pos += scnprintf(buf + pos, bufsz - pos,
1329                                         fmt_hex, "antenna B:",
1330                                         tx->tx_power.ant_b);
1331                 if ((priv->nvm_data->valid_tx_ant & ANT_C) &&
1332                     tx->tx_power.ant_c)
1333                         pos += scnprintf(buf + pos, bufsz - pos,
1334                                         fmt_hex, "antenna C:",
1335                                         tx->tx_power.ant_c);
1336         }
1337
1338         spin_unlock_bh(&priv->statistics.lock);
1339
1340         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1341         kfree(buf);
1342         return ret;
1343 }
1344
1345 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1346                                         char __user *user_buf,
1347                                         size_t count, loff_t *ppos)
1348 {
1349         struct iwl_priv *priv = file->private_data;
1350         int pos = 0;
1351         char *buf;
1352         int bufsz = sizeof(struct statistics_general) * 10 + 300;
1353         ssize_t ret;
1354         struct statistics_general_common *general, *accum_general;
1355         struct statistics_general_common *delta_general, *max_general;
1356         struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1357         struct statistics_div *div, *accum_div, *delta_div, *max_div;
1358
1359         if (!iwl_is_alive(priv))
1360                 return -EAGAIN;
1361
1362         buf = kzalloc(bufsz, GFP_KERNEL);
1363         if (!buf)
1364                 return -ENOMEM;
1365
1366         /* the statistic information display here is based on
1367          * the last statistics notification from uCode
1368          * might not reflect the current uCode activity
1369          */
1370
1371         spin_lock_bh(&priv->statistics.lock);
1372
1373         general = &priv->statistics.common;
1374         dbg = &priv->statistics.common.dbg;
1375         div = &priv->statistics.common.div;
1376         accum_general = &priv->accum_stats.common;
1377         accum_dbg = &priv->accum_stats.common.dbg;
1378         accum_div = &priv->accum_stats.common.div;
1379         delta_general = &priv->delta_stats.common;
1380         max_general = &priv->max_delta_stats.common;
1381         delta_dbg = &priv->delta_stats.common.dbg;
1382         max_dbg = &priv->max_delta_stats.common.dbg;
1383         delta_div = &priv->delta_stats.common.div;
1384         max_div = &priv->max_delta_stats.common.div;
1385
1386         pos += iwl_statistics_flag(priv, buf, bufsz);
1387         pos += scnprintf(buf + pos, bufsz - pos,
1388                          fmt_header, "Statistics_General:");
1389         pos += scnprintf(buf + pos, bufsz - pos,
1390                          fmt_value, "temperature:",
1391                          le32_to_cpu(general->temperature));
1392         pos += scnprintf(buf + pos, bufsz - pos,
1393                          fmt_value, "temperature_m:",
1394                          le32_to_cpu(general->temperature_m));
1395         pos += scnprintf(buf + pos, bufsz - pos,
1396                          fmt_value, "ttl_timestamp:",
1397                          le32_to_cpu(general->ttl_timestamp));
1398         pos += scnprintf(buf + pos, bufsz - pos,
1399                          fmt_table, "burst_check:",
1400                          le32_to_cpu(dbg->burst_check),
1401                          accum_dbg->burst_check,
1402                          delta_dbg->burst_check, max_dbg->burst_check);
1403         pos += scnprintf(buf + pos, bufsz - pos,
1404                          fmt_table, "burst_count:",
1405                          le32_to_cpu(dbg->burst_count),
1406                          accum_dbg->burst_count,
1407                          delta_dbg->burst_count, max_dbg->burst_count);
1408         pos += scnprintf(buf + pos, bufsz - pos,
1409                          fmt_table, "wait_for_silence_timeout_count:",
1410                          le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
1411                          accum_dbg->wait_for_silence_timeout_cnt,
1412                          delta_dbg->wait_for_silence_timeout_cnt,
1413                          max_dbg->wait_for_silence_timeout_cnt);
1414         pos += scnprintf(buf + pos, bufsz - pos,
1415                          fmt_table, "sleep_time:",
1416                          le32_to_cpu(general->sleep_time),
1417                          accum_general->sleep_time,
1418                          delta_general->sleep_time, max_general->sleep_time);
1419         pos += scnprintf(buf + pos, bufsz - pos,
1420                          fmt_table, "slots_out:",
1421                          le32_to_cpu(general->slots_out),
1422                          accum_general->slots_out,
1423                          delta_general->slots_out, max_general->slots_out);
1424         pos += scnprintf(buf + pos, bufsz - pos,
1425                          fmt_table, "slots_idle:",
1426                          le32_to_cpu(general->slots_idle),
1427                          accum_general->slots_idle,
1428                          delta_general->slots_idle, max_general->slots_idle);
1429         pos += scnprintf(buf + pos, bufsz - pos,
1430                          fmt_table, "tx_on_a:",
1431                          le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1432                          delta_div->tx_on_a, max_div->tx_on_a);
1433         pos += scnprintf(buf + pos, bufsz - pos,
1434                          fmt_table, "tx_on_b:",
1435                          le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1436                          delta_div->tx_on_b, max_div->tx_on_b);
1437         pos += scnprintf(buf + pos, bufsz - pos,
1438                          fmt_table, "exec_time:",
1439                          le32_to_cpu(div->exec_time), accum_div->exec_time,
1440                          delta_div->exec_time, max_div->exec_time);
1441         pos += scnprintf(buf + pos, bufsz - pos,
1442                          fmt_table, "probe_time:",
1443                          le32_to_cpu(div->probe_time), accum_div->probe_time,
1444                          delta_div->probe_time, max_div->probe_time);
1445         pos += scnprintf(buf + pos, bufsz - pos,
1446                          fmt_table, "rx_enable_counter:",
1447                          le32_to_cpu(general->rx_enable_counter),
1448                          accum_general->rx_enable_counter,
1449                          delta_general->rx_enable_counter,
1450                          max_general->rx_enable_counter);
1451         pos += scnprintf(buf + pos, bufsz - pos,
1452                          fmt_table, "num_of_sos_states:",
1453                          le32_to_cpu(general->num_of_sos_states),
1454                          accum_general->num_of_sos_states,
1455                          delta_general->num_of_sos_states,
1456                          max_general->num_of_sos_states);
1457
1458         spin_unlock_bh(&priv->statistics.lock);
1459
1460         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1461         kfree(buf);
1462         return ret;
1463 }
1464
1465 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1466                                         char __user *user_buf,
1467                                         size_t count, loff_t *ppos)
1468 {
1469         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1470         int pos = 0;
1471         char *buf;
1472         int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
1473         ssize_t ret;
1474         struct statistics_bt_activity *bt, *accum_bt;
1475
1476         if (!iwl_is_alive(priv))
1477                 return -EAGAIN;
1478
1479         if (!priv->bt_enable_flag)
1480                 return -EINVAL;
1481
1482         /* make request to uCode to retrieve statistics information */
1483         mutex_lock(&priv->mutex);
1484         ret = iwl_send_statistics_request(priv, 0, false);
1485         mutex_unlock(&priv->mutex);
1486
1487         if (ret)
1488                 return -EAGAIN;
1489         buf = kzalloc(bufsz, GFP_KERNEL);
1490         if (!buf)
1491                 return -ENOMEM;
1492
1493         /*
1494          * the statistic information display here is based on
1495          * the last statistics notification from uCode
1496          * might not reflect the current uCode activity
1497          */
1498
1499         spin_lock_bh(&priv->statistics.lock);
1500
1501         bt = &priv->statistics.bt_activity;
1502         accum_bt = &priv->accum_stats.bt_activity;
1503
1504         pos += iwl_statistics_flag(priv, buf, bufsz);
1505         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
1506         pos += scnprintf(buf + pos, bufsz - pos,
1507                         "\t\t\tcurrent\t\t\taccumulative\n");
1508         pos += scnprintf(buf + pos, bufsz - pos,
1509                          "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1510                          le32_to_cpu(bt->hi_priority_tx_req_cnt),
1511                          accum_bt->hi_priority_tx_req_cnt);
1512         pos += scnprintf(buf + pos, bufsz - pos,
1513                          "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1514                          le32_to_cpu(bt->hi_priority_tx_denied_cnt),
1515                          accum_bt->hi_priority_tx_denied_cnt);
1516         pos += scnprintf(buf + pos, bufsz - pos,
1517                          "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1518                          le32_to_cpu(bt->lo_priority_tx_req_cnt),
1519                          accum_bt->lo_priority_tx_req_cnt);
1520         pos += scnprintf(buf + pos, bufsz - pos,
1521                          "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1522                          le32_to_cpu(bt->lo_priority_tx_denied_cnt),
1523                          accum_bt->lo_priority_tx_denied_cnt);
1524         pos += scnprintf(buf + pos, bufsz - pos,
1525                          "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1526                          le32_to_cpu(bt->hi_priority_rx_req_cnt),
1527                          accum_bt->hi_priority_rx_req_cnt);
1528         pos += scnprintf(buf + pos, bufsz - pos,
1529                          "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1530                          le32_to_cpu(bt->hi_priority_rx_denied_cnt),
1531                          accum_bt->hi_priority_rx_denied_cnt);
1532         pos += scnprintf(buf + pos, bufsz - pos,
1533                          "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1534                          le32_to_cpu(bt->lo_priority_rx_req_cnt),
1535                          accum_bt->lo_priority_rx_req_cnt);
1536         pos += scnprintf(buf + pos, bufsz - pos,
1537                          "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1538                          le32_to_cpu(bt->lo_priority_rx_denied_cnt),
1539                          accum_bt->lo_priority_rx_denied_cnt);
1540
1541         pos += scnprintf(buf + pos, bufsz - pos,
1542                          "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
1543                          le32_to_cpu(priv->statistics.num_bt_kills),
1544                          priv->statistics.accum_num_bt_kills);
1545
1546         spin_unlock_bh(&priv->statistics.lock);
1547
1548         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1549         kfree(buf);
1550         return ret;
1551 }
1552
1553 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1554                                         char __user *user_buf,
1555                                         size_t count, loff_t *ppos)
1556 {
1557         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1558         int pos = 0;
1559         char *buf;
1560         int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
1561                 (sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
1562         ssize_t ret;
1563
1564         if (!iwl_is_alive(priv))
1565                 return -EAGAIN;
1566
1567         buf = kzalloc(bufsz, GFP_KERNEL);
1568         if (!buf)
1569                 return -ENOMEM;
1570
1571         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
1572         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
1573                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1574                          priv->reply_tx_stats.pp_delay);
1575         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1576                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1577                          priv->reply_tx_stats.pp_few_bytes);
1578         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1579                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1580                          priv->reply_tx_stats.pp_bt_prio);
1581         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1582                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1583                          priv->reply_tx_stats.pp_quiet_period);
1584         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1585                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1586                          priv->reply_tx_stats.pp_calc_ttak);
1587         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1588                          iwl_get_tx_fail_reason(
1589                                 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1590                          priv->reply_tx_stats.int_crossed_retry);
1591         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1592                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1593                          priv->reply_tx_stats.short_limit);
1594         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1595                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1596                          priv->reply_tx_stats.long_limit);
1597         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1598                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1599                          priv->reply_tx_stats.fifo_underrun);
1600         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1601                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1602                          priv->reply_tx_stats.drain_flow);
1603         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1604                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1605                          priv->reply_tx_stats.rfkill_flush);
1606         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1607                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1608                          priv->reply_tx_stats.life_expire);
1609         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1610                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1611                          priv->reply_tx_stats.dest_ps);
1612         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1613                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1614                          priv->reply_tx_stats.host_abort);
1615         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1616                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1617                          priv->reply_tx_stats.pp_delay);
1618         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1619                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1620                          priv->reply_tx_stats.sta_invalid);
1621         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1622                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1623                          priv->reply_tx_stats.frag_drop);
1624         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1625                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1626                          priv->reply_tx_stats.tid_disable);
1627         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1628                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1629                          priv->reply_tx_stats.fifo_flush);
1630         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1631                          iwl_get_tx_fail_reason(
1632                                 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1633                          priv->reply_tx_stats.insuff_cf_poll);
1634         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1635                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1636                          priv->reply_tx_stats.fail_hw_drop);
1637         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1638                          iwl_get_tx_fail_reason(
1639                                 TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1640                          priv->reply_tx_stats.sta_color_mismatch);
1641         pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1642                          priv->reply_tx_stats.unknown);
1643
1644         pos += scnprintf(buf + pos, bufsz - pos,
1645                          "\nStatistics_Agg_TX_Error:\n");
1646
1647         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1648                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1649                          priv->reply_agg_tx_stats.underrun);
1650         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1651                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1652                          priv->reply_agg_tx_stats.bt_prio);
1653         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1654                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1655                          priv->reply_agg_tx_stats.few_bytes);
1656         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1657                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
1658                          priv->reply_agg_tx_stats.abort);
1659         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1660                          iwl_get_agg_tx_fail_reason(
1661                                 AGG_TX_STATE_LAST_SENT_TTL_MSK),
1662                          priv->reply_agg_tx_stats.last_sent_ttl);
1663         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1664                          iwl_get_agg_tx_fail_reason(
1665                                 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK),
1666                          priv->reply_agg_tx_stats.last_sent_try);
1667         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1668                          iwl_get_agg_tx_fail_reason(
1669                                 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
1670                          priv->reply_agg_tx_stats.last_sent_bt_kill);
1671         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1672                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
1673                          priv->reply_agg_tx_stats.scd_query);
1674         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1675                          iwl_get_agg_tx_fail_reason(
1676                                 AGG_TX_STATE_TEST_BAD_CRC32_MSK),
1677                          priv->reply_agg_tx_stats.bad_crc32);
1678         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1679                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
1680                          priv->reply_agg_tx_stats.response);
1681         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1682                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
1683                          priv->reply_agg_tx_stats.dump_tx);
1684         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1685                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
1686                          priv->reply_agg_tx_stats.delay_tx);
1687         pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1688                          priv->reply_agg_tx_stats.unknown);
1689
1690         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1691         kfree(buf);
1692         return ret;
1693 }
1694
1695 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1696                                         char __user *user_buf,
1697                                         size_t count, loff_t *ppos) {
1698
1699         struct iwl_priv *priv = file->private_data;
1700         int pos = 0;
1701         int cnt = 0;
1702         char *buf;
1703         int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1704         ssize_t ret;
1705         struct iwl_sensitivity_data *data;
1706
1707         data = &priv->sensitivity_data;
1708         buf = kzalloc(bufsz, GFP_KERNEL);
1709         if (!buf)
1710                 return -ENOMEM;
1711
1712         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1713                         data->auto_corr_ofdm);
1714         pos += scnprintf(buf + pos, bufsz - pos,
1715                         "auto_corr_ofdm_mrc:\t\t %u\n",
1716                         data->auto_corr_ofdm_mrc);
1717         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1718                         data->auto_corr_ofdm_x1);
1719         pos += scnprintf(buf + pos, bufsz - pos,
1720                         "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1721                         data->auto_corr_ofdm_mrc_x1);
1722         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1723                         data->auto_corr_cck);
1724         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1725                         data->auto_corr_cck_mrc);
1726         pos += scnprintf(buf + pos, bufsz - pos,
1727                         "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1728                         data->last_bad_plcp_cnt_ofdm);
1729         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1730                         data->last_fa_cnt_ofdm);
1731         pos += scnprintf(buf + pos, bufsz - pos,
1732                         "last_bad_plcp_cnt_cck:\t\t %u\n",
1733                         data->last_bad_plcp_cnt_cck);
1734         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1735                         data->last_fa_cnt_cck);
1736         pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1737                         data->nrg_curr_state);
1738         pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1739                         data->nrg_prev_state);
1740         pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1741         for (cnt = 0; cnt < 10; cnt++) {
1742                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1743                                 data->nrg_value[cnt]);
1744         }
1745         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1746         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1747         for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1748                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1749                                 data->nrg_silence_rssi[cnt]);
1750         }
1751         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1752         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1753                         data->nrg_silence_ref);
1754         pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1755                         data->nrg_energy_idx);
1756         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1757                         data->nrg_silence_idx);
1758         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1759                         data->nrg_th_cck);
1760         pos += scnprintf(buf + pos, bufsz - pos,
1761                         "nrg_auto_corr_silence_diff:\t %u\n",
1762                         data->nrg_auto_corr_silence_diff);
1763         pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1764                         data->num_in_cck_no_fa);
1765         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1766                         data->nrg_th_ofdm);
1767
1768         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1769         kfree(buf);
1770         return ret;
1771 }
1772
1773
1774 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1775                                         char __user *user_buf,
1776                                         size_t count, loff_t *ppos) {
1777
1778         struct iwl_priv *priv = file->private_data;
1779         int pos = 0;
1780         int cnt = 0;
1781         char *buf;
1782         int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1783         ssize_t ret;
1784         struct iwl_chain_noise_data *data;
1785
1786         data = &priv->chain_noise_data;
1787         buf = kzalloc(bufsz, GFP_KERNEL);
1788         if (!buf)
1789                 return -ENOMEM;
1790
1791         pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1792                         data->active_chains);
1793         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1794                         data->chain_noise_a);
1795         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1796                         data->chain_noise_b);
1797         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1798                         data->chain_noise_c);
1799         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1800                         data->chain_signal_a);
1801         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1802                         data->chain_signal_b);
1803         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1804                         data->chain_signal_c);
1805         pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1806                         data->beacon_count);
1807
1808         pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1809         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1810                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1811                                 data->disconn_array[cnt]);
1812         }
1813         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1814         pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1815         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1816                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1817                                 data->delta_gain_code[cnt]);
1818         }
1819         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1820         pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1821                         data->radio_write);
1822         pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1823                         data->state);
1824
1825         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1826         kfree(buf);
1827         return ret;
1828 }
1829
1830 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1831                                                     char __user *user_buf,
1832                                                     size_t count, loff_t *ppos)
1833 {
1834         struct iwl_priv *priv = file->private_data;
1835         char buf[60];
1836         int pos = 0;
1837         const size_t bufsz = sizeof(buf);
1838         u32 pwrsave_status;
1839
1840         pwrsave_status = iwl_read32(priv->trans, CSR_GP_CNTRL) &
1841                         CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1842
1843         pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1844         pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1845                 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1846                 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1847                 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1848                 "error");
1849
1850         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1851 }
1852
1853 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1854                                          const char __user *user_buf,
1855                                          size_t count, loff_t *ppos)
1856 {
1857         struct iwl_priv *priv = file->private_data;
1858         char buf[8];
1859         int buf_size;
1860         int clear;
1861
1862         memset(buf, 0, sizeof(buf));
1863         buf_size = min(count, sizeof(buf) -  1);
1864         if (copy_from_user(buf, user_buf, buf_size))
1865                 return -EFAULT;
1866         if (sscanf(buf, "%d", &clear) != 1)
1867                 return -EFAULT;
1868
1869         /* make request to uCode to retrieve statistics information */
1870         mutex_lock(&priv->mutex);
1871         iwl_send_statistics_request(priv, 0, true);
1872         mutex_unlock(&priv->mutex);
1873
1874         return count;
1875 }
1876
1877 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1878                                         char __user *user_buf,
1879                                         size_t count, loff_t *ppos) {
1880
1881         struct iwl_priv *priv = file->private_data;
1882         int pos = 0;
1883         char buf[128];
1884         const size_t bufsz = sizeof(buf);
1885
1886         pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1887                         priv->event_log.ucode_trace ? "On" : "Off");
1888         pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1889                         priv->event_log.non_wraps_count);
1890         pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1891                         priv->event_log.wraps_once_count);
1892         pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1893                         priv->event_log.wraps_more_count);
1894
1895         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1896 }
1897
1898 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1899                                          const char __user *user_buf,
1900                                          size_t count, loff_t *ppos)
1901 {
1902         struct iwl_priv *priv = file->private_data;
1903         char buf[8];
1904         int buf_size;
1905         int trace;
1906
1907         memset(buf, 0, sizeof(buf));
1908         buf_size = min(count, sizeof(buf) -  1);
1909         if (copy_from_user(buf, user_buf, buf_size))
1910                 return -EFAULT;
1911         if (sscanf(buf, "%d", &trace) != 1)
1912                 return -EFAULT;
1913
1914         if (trace) {
1915                 priv->event_log.ucode_trace = true;
1916                 if (iwl_is_alive(priv)) {
1917                         /* start collecting data now */
1918                         mod_timer(&priv->ucode_trace, jiffies);
1919                 }
1920         } else {
1921                 priv->event_log.ucode_trace = false;
1922                 del_timer_sync(&priv->ucode_trace);
1923         }
1924
1925         return count;
1926 }
1927
1928 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1929                                          char __user *user_buf,
1930                                          size_t count, loff_t *ppos) {
1931
1932         struct iwl_priv *priv = file->private_data;
1933         int len = 0;
1934         char buf[20];
1935
1936         len = sprintf(buf, "0x%04X\n",
1937                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1938         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1939 }
1940
1941 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1942                                                 char __user *user_buf,
1943                                                 size_t count, loff_t *ppos) {
1944
1945         struct iwl_priv *priv = file->private_data;
1946         int len = 0;
1947         char buf[20];
1948
1949         len = sprintf(buf, "0x%04X\n",
1950                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1951         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1952 }
1953
1954 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1955                                         char __user *user_buf,
1956                                         size_t count, loff_t *ppos) {
1957
1958         struct iwl_priv *priv = file->private_data;
1959         int pos = 0;
1960         char buf[12];
1961         const size_t bufsz = sizeof(buf);
1962
1963         pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1964                         priv->missed_beacon_threshold);
1965
1966         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1967 }
1968
1969 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1970                                          const char __user *user_buf,
1971                                          size_t count, loff_t *ppos)
1972 {
1973         struct iwl_priv *priv = file->private_data;
1974         char buf[8];
1975         int buf_size;
1976         int missed;
1977
1978         memset(buf, 0, sizeof(buf));
1979         buf_size = min(count, sizeof(buf) -  1);
1980         if (copy_from_user(buf, user_buf, buf_size))
1981                 return -EFAULT;
1982         if (sscanf(buf, "%d", &missed) != 1)
1983                 return -EINVAL;
1984
1985         if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1986             missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1987                 priv->missed_beacon_threshold =
1988                         IWL_MISSED_BEACON_THRESHOLD_DEF;
1989         else
1990                 priv->missed_beacon_threshold = missed;
1991
1992         return count;
1993 }
1994
1995 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1996                                         char __user *user_buf,
1997                                         size_t count, loff_t *ppos) {
1998
1999         struct iwl_priv *priv = file->private_data;
2000         int pos = 0;
2001         char buf[12];
2002         const size_t bufsz = sizeof(buf);
2003
2004         pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
2005                         priv->plcp_delta_threshold);
2006
2007         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2008 }
2009
2010 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
2011                                         const char __user *user_buf,
2012                                         size_t count, loff_t *ppos) {
2013
2014         struct iwl_priv *priv = file->private_data;
2015         char buf[8];
2016         int buf_size;
2017         int plcp;
2018
2019         memset(buf, 0, sizeof(buf));
2020         buf_size = min(count, sizeof(buf) -  1);
2021         if (copy_from_user(buf, user_buf, buf_size))
2022                 return -EFAULT;
2023         if (sscanf(buf, "%d", &plcp) != 1)
2024                 return -EINVAL;
2025         if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
2026                 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
2027                 priv->plcp_delta_threshold =
2028                         IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
2029         else
2030                 priv->plcp_delta_threshold = plcp;
2031         return count;
2032 }
2033
2034 static ssize_t iwl_dbgfs_rf_reset_read(struct file *file,
2035                                        char __user *user_buf,
2036                                        size_t count, loff_t *ppos)
2037 {
2038         struct iwl_priv *priv = file->private_data;
2039         int pos = 0;
2040         char buf[300];
2041         const size_t bufsz = sizeof(buf);
2042         struct iwl_rf_reset *rf_reset = &priv->rf_reset;
2043
2044         pos += scnprintf(buf + pos, bufsz - pos,
2045                         "RF reset statistics\n");
2046         pos += scnprintf(buf + pos, bufsz - pos,
2047                         "\tnumber of reset request: %d\n",
2048                         rf_reset->reset_request_count);
2049         pos += scnprintf(buf + pos, bufsz - pos,
2050                         "\tnumber of reset request success: %d\n",
2051                         rf_reset->reset_success_count);
2052         pos += scnprintf(buf + pos, bufsz - pos,
2053                         "\tnumber of reset request reject: %d\n",
2054                         rf_reset->reset_reject_count);
2055
2056         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2057 }
2058
2059 static ssize_t iwl_dbgfs_rf_reset_write(struct file *file,
2060                                         const char __user *user_buf,
2061                                         size_t count, loff_t *ppos) {
2062
2063         struct iwl_priv *priv = file->private_data;
2064         int ret;
2065
2066         ret = iwl_force_rf_reset(priv, true);
2067         return ret ? ret : count;
2068 }
2069
2070 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
2071                                         const char __user *user_buf,
2072                                         size_t count, loff_t *ppos) {
2073
2074         struct iwl_priv *priv = file->private_data;
2075         char buf[8];
2076         int buf_size;
2077         int flush;
2078
2079         memset(buf, 0, sizeof(buf));
2080         buf_size = min(count, sizeof(buf) -  1);
2081         if (copy_from_user(buf, user_buf, buf_size))
2082                 return -EFAULT;
2083         if (sscanf(buf, "%d", &flush) != 1)
2084                 return -EINVAL;
2085
2086         if (iwl_is_rfkill(priv))
2087                 return -EFAULT;
2088
2089         iwlagn_dev_txfifo_flush(priv);
2090
2091         return count;
2092 }
2093
2094 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
2095                                         char __user *user_buf,
2096                                         size_t count, loff_t *ppos) {
2097
2098         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2099         int pos = 0;
2100         char buf[200];
2101         const size_t bufsz = sizeof(buf);
2102
2103         if (!priv->bt_enable_flag) {
2104                 pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2105                 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2106         }
2107         pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
2108                 priv->bt_enable_flag);
2109         pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
2110                 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
2111         pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
2112                          "last traffic notif: %d\n",
2113                 priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2114         pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2115                          "kill_ack_mask: %x, kill_cts_mask: %x\n",
2116                 priv->bt_ch_announce, priv->kill_ack_mask,
2117                 priv->kill_cts_mask);
2118
2119         pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
2120         switch (priv->bt_traffic_load) {
2121         case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
2122                 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
2123                 break;
2124         case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
2125                 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
2126                 break;
2127         case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
2128                 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
2129                 break;
2130         case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
2131         default:
2132                 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
2133                 break;
2134         }
2135
2136         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2137 }
2138
2139 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
2140                                         char __user *user_buf,
2141                                         size_t count, loff_t *ppos)
2142 {
2143         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2144
2145         int pos = 0;
2146         char buf[40];
2147         const size_t bufsz = sizeof(buf);
2148
2149         if (priv->cfg->ht_params)
2150                 pos += scnprintf(buf + pos, bufsz - pos,
2151                          "use %s for aggregation\n",
2152                          (priv->hw_params.use_rts_for_aggregation) ?
2153                                 "rts/cts" : "cts-to-self");
2154         else
2155                 pos += scnprintf(buf + pos, bufsz - pos, "N/A");
2156
2157         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2158 }
2159
2160 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
2161                                         const char __user *user_buf,
2162                                         size_t count, loff_t *ppos) {
2163
2164         struct iwl_priv *priv = file->private_data;
2165         char buf[8];
2166         int buf_size;
2167         int rts;
2168
2169         if (!priv->cfg->ht_params)
2170                 return -EINVAL;
2171
2172         memset(buf, 0, sizeof(buf));
2173         buf_size = min(count, sizeof(buf) -  1);
2174         if (copy_from_user(buf, user_buf, buf_size))
2175                 return -EFAULT;
2176         if (sscanf(buf, "%d", &rts) != 1)
2177                 return -EINVAL;
2178         if (rts)
2179                 priv->hw_params.use_rts_for_aggregation = true;
2180         else
2181                 priv->hw_params.use_rts_for_aggregation = false;
2182         return count;
2183 }
2184
2185 static int iwl_cmd_echo_test(struct iwl_priv *priv)
2186 {
2187         int ret;
2188         struct iwl_host_cmd cmd = {
2189                 .id = REPLY_ECHO,
2190                 .len = { 0 },
2191         };
2192
2193         ret = iwl_dvm_send_cmd(priv, &cmd);
2194         if (ret)
2195                 IWL_ERR(priv, "echo testing fail: 0X%x\n", ret);
2196         else
2197                 IWL_DEBUG_INFO(priv, "echo testing pass\n");
2198         return ret;
2199 }
2200
2201 static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
2202                                         const char __user *user_buf,
2203                                         size_t count, loff_t *ppos)
2204 {
2205         struct iwl_priv *priv = file->private_data;
2206         char buf[8];
2207         int buf_size;
2208
2209         memset(buf, 0, sizeof(buf));
2210         buf_size = min(count, sizeof(buf) -  1);
2211         if (copy_from_user(buf, user_buf, buf_size))
2212                 return -EFAULT;
2213
2214         iwl_cmd_echo_test(priv);
2215         return count;
2216 }
2217
2218 #ifdef CONFIG_IWLWIFI_DEBUG
2219 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
2220                                          char __user *user_buf,
2221                                          size_t count, loff_t *ppos)
2222 {
2223         struct iwl_priv *priv = file->private_data;
2224         char *buf = NULL;
2225         ssize_t ret;
2226
2227         ret = iwl_dump_nic_event_log(priv, true, &buf);
2228         if (ret > 0)
2229                 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
2230         kfree(buf);
2231         return ret;
2232 }
2233
2234 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
2235                                         const char __user *user_buf,
2236                                         size_t count, loff_t *ppos)
2237 {
2238         struct iwl_priv *priv = file->private_data;
2239         u32 event_log_flag;
2240         char buf[8];
2241         int buf_size;
2242
2243         /* check that the interface is up */
2244         if (!iwl_is_ready(priv))
2245                 return -EAGAIN;
2246
2247         memset(buf, 0, sizeof(buf));
2248         buf_size = min(count, sizeof(buf) -  1);
2249         if (copy_from_user(buf, user_buf, buf_size))
2250                 return -EFAULT;
2251         if (sscanf(buf, "%d", &event_log_flag) != 1)
2252                 return -EFAULT;
2253         if (event_log_flag == 1)
2254                 iwl_dump_nic_event_log(priv, true, NULL);
2255
2256         return count;
2257 }
2258 #endif
2259
2260 static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file,
2261                                          char __user *user_buf,
2262                                          size_t count, loff_t *ppos)
2263 {
2264         struct iwl_priv *priv = file->private_data;
2265         char buf[120];
2266         int pos = 0;
2267         const size_t bufsz = sizeof(buf);
2268
2269         pos += scnprintf(buf + pos, bufsz - pos,
2270                          "Sensitivity calibrations %s\n",
2271                          (priv->calib_disabled &
2272                                         IWL_SENSITIVITY_CALIB_DISABLED) ?
2273                          "DISABLED" : "ENABLED");
2274         pos += scnprintf(buf + pos, bufsz - pos,
2275                          "Chain noise calibrations %s\n",
2276                          (priv->calib_disabled &
2277                                         IWL_CHAIN_NOISE_CALIB_DISABLED) ?
2278                          "DISABLED" : "ENABLED");
2279         pos += scnprintf(buf + pos, bufsz - pos,
2280                          "Tx power calibrations %s\n",
2281                          (priv->calib_disabled &
2282                                         IWL_TX_POWER_CALIB_DISABLED) ?
2283                          "DISABLED" : "ENABLED");
2284
2285         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2286 }
2287
2288 static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
2289                                               const char __user *user_buf,
2290                                               size_t count, loff_t *ppos)
2291 {
2292         struct iwl_priv *priv = file->private_data;
2293         char buf[8];
2294         u32 calib_disabled;
2295         int buf_size;
2296
2297         memset(buf, 0, sizeof(buf));
2298         buf_size = min(count, sizeof(buf) - 1);
2299         if (copy_from_user(buf, user_buf, buf_size))
2300                 return -EFAULT;
2301         if (sscanf(buf, "%x", &calib_disabled) != 1)
2302                 return -EFAULT;
2303
2304         priv->calib_disabled = calib_disabled;
2305
2306         return count;
2307 }
2308
2309 static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
2310                                           const char __user *user_buf,
2311                                           size_t count, loff_t *ppos)
2312 {
2313         struct iwl_priv *priv = file->private_data;
2314         bool restart_fw = iwlwifi_mod_params.restart_fw;
2315         int ret;
2316
2317         iwlwifi_mod_params.restart_fw = true;
2318
2319         mutex_lock(&priv->mutex);
2320
2321         /* take the return value to make compiler happy - it will fail anyway */
2322         ret = iwl_dvm_send_cmd_pdu(priv, REPLY_ERROR, 0, 0, NULL);
2323
2324         mutex_unlock(&priv->mutex);
2325
2326         iwlwifi_mod_params.restart_fw = restart_fw;
2327
2328         return count;
2329 }
2330
2331 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2332 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2333 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2334 DEBUGFS_READ_FILE_OPS(sensitivity);
2335 DEBUGFS_READ_FILE_OPS(chain_noise);
2336 DEBUGFS_READ_FILE_OPS(power_save_status);
2337 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2338 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2339 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2340 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2341 DEBUGFS_READ_WRITE_FILE_OPS(rf_reset);
2342 DEBUGFS_READ_FILE_OPS(rxon_flags);
2343 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2344 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2345 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2346 DEBUGFS_READ_FILE_OPS(bt_traffic);
2347 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2348 DEBUGFS_READ_FILE_OPS(reply_tx_error);
2349 DEBUGFS_WRITE_FILE_OPS(echo_test);
2350 DEBUGFS_WRITE_FILE_OPS(fw_restart);
2351 #ifdef CONFIG_IWLWIFI_DEBUG
2352 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
2353 #endif
2354 DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
2355
2356 /*
2357  * Create the debugfs files and directories
2358  *
2359  */
2360 int iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
2361 {
2362         struct dentry *dir_data, *dir_rf, *dir_debug;
2363
2364         priv->debugfs_dir = dbgfs_dir;
2365
2366         dir_data = debugfs_create_dir("data", dbgfs_dir);
2367         if (!dir_data)
2368                 goto err;
2369         dir_rf = debugfs_create_dir("rf", dbgfs_dir);
2370         if (!dir_rf)
2371                 goto err;
2372         dir_debug = debugfs_create_dir("debug", dbgfs_dir);
2373         if (!dir_debug)
2374                 goto err;
2375
2376         DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
2377         DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
2378         DEBUGFS_ADD_FILE(wowlan_sram, dir_data, S_IRUSR);
2379         DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
2380         DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
2381         DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
2382         DEBUGFS_ADD_FILE(rx_handlers, dir_data, S_IWUSR | S_IRUSR);
2383         DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
2384         DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
2385         DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
2386         DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
2387         DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
2388         DEBUGFS_ADD_FILE(temperature, dir_data, S_IRUSR);
2389
2390         DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
2391         DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
2392         DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
2393         DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
2394         DEBUGFS_ADD_FILE(rf_reset, dir_debug, S_IWUSR | S_IRUSR);
2395         DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
2396         DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
2397         DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
2398         DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
2399         DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
2400         DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
2401         DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
2402         DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
2403         DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
2404         DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
2405         DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
2406         DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
2407         DEBUGFS_ADD_FILE(echo_test, dir_debug, S_IWUSR);
2408         DEBUGFS_ADD_FILE(fw_restart, dir_debug, S_IWUSR);
2409 #ifdef CONFIG_IWLWIFI_DEBUG
2410         DEBUGFS_ADD_FILE(log_event, dir_debug, S_IWUSR | S_IRUSR);
2411 #endif
2412
2413         if (iwl_advanced_bt_coexist(priv))
2414                 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
2415
2416         /* Calibrations disabled/enabled status*/
2417         DEBUGFS_ADD_FILE(calib_disabled, dir_rf, S_IWUSR | S_IRUSR);
2418
2419         /*
2420          * Create a symlink with mac80211. This is not very robust, as it does
2421          * not remove the symlink created. The implicit assumption is that
2422          * when the opmode exits, mac80211 will also exit, and will remove
2423          * this symlink as part of its cleanup.
2424          */
2425         if (priv->mac80211_registered) {
2426                 char buf[100];
2427                 struct dentry *mac80211_dir, *dev_dir, *root_dir;
2428
2429                 dev_dir = dbgfs_dir->d_parent;
2430                 root_dir = dev_dir->d_parent;
2431                 mac80211_dir = priv->hw->wiphy->debugfsdir;
2432
2433                 snprintf(buf, 100, "../../%s/%s", root_dir->d_name.name,
2434                          dev_dir->d_name.name);
2435
2436                 if (!debugfs_create_symlink("iwlwifi", mac80211_dir, buf))
2437                         goto err;
2438         }
2439
2440         return 0;
2441
2442 err:
2443         IWL_ERR(priv, "failed to create the dvm debugfs entries\n");
2444         return -ENOMEM;
2445 }