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

   1 /******************************************************************************
   2  *
   3  * GPL LICENSE SUMMARY
   4  *
   5  * Copyright(c) 2008 - 2012 Intel Corporation. All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of version 2 of the GNU General Public License as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  19  * USA
  20  *
  21  * The full GNU General Public License is included in this distribution
  22  * in the file called LICENSE.GPL.
  23  *
  24  * Contact Information:
  25  *  Intel Linux Wireless <ilw@linux.intel.com>
  26  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  27  *****************************************************************************/
  28
  29 #include <linux/slab.h>
  30 #include <linux/kernel.h>
  31 #include <linux/module.h>
  32 #include <linux/debugfs.h>
  33 #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_FUNC(name)                                         \
  73 static ssize_t iwl_dbgfs_##name##_read(struct file *file,               \
  74                                         char __user *user_buf,          \
  75                                         size_t count, loff_t *ppos);
  76
  77 #define DEBUGFS_WRITE_FUNC(name)                                        \
  78 static ssize_t iwl_dbgfs_##name##_write(struct file *file,              \
  79                                         const char __user *user_buf,    \
  80                                         size_t count, loff_t *ppos);
  81
  82
  83 #define DEBUGFS_READ_FILE_OPS(name)                                     \
  84         DEBUGFS_READ_FUNC(name);                                        \
  85 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  86         .read = iwl_dbgfs_##name##_read,                                \
  87         .open = simple_open,                                            \
  88         .llseek = generic_file_llseek,                                  \
  89 };
  90
  91 #define DEBUGFS_WRITE_FILE_OPS(name)                                    \
  92         DEBUGFS_WRITE_FUNC(name);                                       \
  93 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  94         .write = iwl_dbgfs_##name##_write,                              \
  95         .open = simple_open,                                            \
  96         .llseek = generic_file_llseek,                                  \
  97 };
  98
  99
 100 #define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
 101         DEBUGFS_READ_FUNC(name);                                        \
 102         DEBUGFS_WRITE_FUNC(name);                                       \
 103 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
 104         .write = iwl_dbgfs_##name##_write,                              \
 105         .read = iwl_dbgfs_##name##_read,                                \
 106         .open = simple_open,                                            \
 107         .llseek = generic_file_llseek,                                  \
 108 };
 109
 110 static ssize_t iwl_dbgfs_sram_read(struct file *file,
 111                                         char __user *user_buf,
 112                                         size_t count, loff_t *ppos)
 113 {
 114         u32 val = 0;
 115         char *buf;
 116         ssize_t ret;
 117         int i = 0;
 118         bool device_format = false;
 119         int offset = 0;
 120         int len = 0;
 121         int pos = 0;
 122         int sram;
 123         struct iwl_priv *priv = file->private_data;
 124         const struct fw_img *img;
 125         size_t bufsz;
 126
 127         if (!iwl_is_ready_rf(priv))
 128                 return -EAGAIN;
 129
 130         /* default is to dump the entire data segment */
 131         if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
 132                 priv->dbgfs_sram_offset = 0x800000;
 133                 if (!priv->ucode_loaded)
 134                         return -EINVAL;
 135                 img = &priv->fw->img[priv->cur_ucode];
 136                 priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
 137         }
 138         len = priv->dbgfs_sram_len;
 139
 140         if (len == -4) {
 141                 device_format = true;
 142                 len = 4;
 143         }
 144
 145         bufsz =  50 + len * 4;
 146         buf = kmalloc(bufsz, GFP_KERNEL);
 147         if (!buf)
 148                 return -ENOMEM;
 149
 150         pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
 151                          len);
 152         pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
 153                         priv->dbgfs_sram_offset);
 154
 155         /* adjust sram address since reads are only on even u32 boundaries */
 156         offset = priv->dbgfs_sram_offset & 0x3;
 157         sram = priv->dbgfs_sram_offset & ~0x3;
 158
 159         /* read the first u32 from sram */
 160         val = iwl_read_targ_mem(priv->trans, sram);
 161
 162         for (; len; len--) {
 163                 /* put the address at the start of every line */
 164                 if (i == 0)
 165                         pos += scnprintf(buf + pos, bufsz - pos,
 166                                 "%08X: ", sram + offset);
 167
 168                 if (device_format)
 169                         pos += scnprintf(buf + pos, bufsz - pos,
 170                                 "%02x", (val >> (8 * (3 - offset))) & 0xff);
 171                 else
 172                         pos += scnprintf(buf + pos, bufsz - pos,
 173                                 "%02x ", (val >> (8 * offset)) & 0xff);
 174
 175                 /* if all bytes processed, read the next u32 from sram */
 176                 if (++offset == 4) {
 177                         sram += 4;
 178                         offset = 0;
 179                         val = iwl_read_targ_mem(priv->trans, sram);
 180                 }
 181
 182                 /* put in extra spaces and split lines for human readability */
 183                 if (++i == 16) {
 184                         i = 0;
 185                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 186                 } else if (!(i & 7)) {
 187                         pos += scnprintf(buf + pos, bufsz - pos, "   ");
 188                 } else if (!(i & 3)) {
 189                         pos += scnprintf(buf + pos, bufsz - pos, " ");
 190                 }
 191         }
 192         if (i)
 193                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 194
 195         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 196         kfree(buf);
 197         return ret;
 198 }
 199
 200 static ssize_t iwl_dbgfs_sram_write(struct file *file,
 201                                         const char __user *user_buf,
 202                                         size_t count, loff_t *ppos)
 203 {
 204         struct iwl_priv *priv = file->private_data;
 205         char buf[64];
 206         int buf_size;
 207         u32 offset, len;
 208
 209         memset(buf, 0, sizeof(buf));
 210         buf_size = min(count, sizeof(buf) -  1);
 211         if (copy_from_user(buf, user_buf, buf_size))
 212                 return -EFAULT;
 213
 214         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 215                 priv->dbgfs_sram_offset = offset;
 216                 priv->dbgfs_sram_len = len;
 217         } else if (sscanf(buf, "%x", &offset) == 1) {
 218                 priv->dbgfs_sram_offset = offset;
 219                 priv->dbgfs_sram_len = -4;
 220         } else {
 221                 priv->dbgfs_sram_offset = 0;
 222                 priv->dbgfs_sram_len = 0;
 223         }
 224
 225         return count;
 226 }
 227
 228 static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
 229                                           char __user *user_buf,
 230                                           size_t count, loff_t *ppos)
 231 {
 232         struct iwl_priv *priv = file->private_data;
 233         const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN];
 234
 235         if (!priv->wowlan_sram)
 236                 return -ENODATA;
 237
 238         return simple_read_from_buffer(user_buf, count, ppos,
 239                                        priv->wowlan_sram,
 240                                        img->sec[IWL_UCODE_SECTION_DATA].len);
 241 }
 242 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 243                                         size_t count, loff_t *ppos)
 244 {
 245         struct iwl_priv *priv = file->private_data;
 246         struct iwl_station_entry *station;
 247         struct iwl_tid_data *tid_data;
 248         char *buf;
 249         int i, j, pos = 0;
 250         ssize_t ret;
 251         /* Add 30 for initial string */
 252         const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
 253
 254         buf = kmalloc(bufsz, GFP_KERNEL);
 255         if (!buf)
 256                 return -ENOMEM;
 257
 258         pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
 259                         priv->num_stations);
 260
 261         for (i = 0; i < IWLAGN_STATION_COUNT; i++) {
 262                 station = &priv->stations[i];
 263                 if (!station->used)
 264                         continue;
 265                 pos += scnprintf(buf + pos, bufsz - pos,
 266                                  "station %d - addr: %pM, flags: %#x\n",
 267                                  i, station->sta.sta.addr,
 268                                  station->sta.station_flags_msk);
 269                 pos += scnprintf(buf + pos, bufsz - pos,
 270                                 "TID seqno  next_rclmd "
 271                                 "rate_n_flags state txq\n");
 272
 273                 for (j = 0; j < IWL_MAX_TID_COUNT; j++) {
 274                         tid_data = &priv->tid_data[i][j];
 275                         pos += scnprintf(buf + pos, bufsz - pos,
 276                                 "%d:  0x%.4x 0x%.4x     0x%.8x   "
 277                                 "%d     %.2d",
 278                                 j, tid_data->seq_number,
 279                                 tid_data->next_reclaimed,
 280                                 tid_data->agg.rate_n_flags,
 281                                 tid_data->agg.state,
 282                                 tid_data->agg.txq_id);
 283
 284                         if (tid_data->agg.wait_for_ba)
 285                                 pos += scnprintf(buf + pos, bufsz - pos,
 286                                                  " - waitforba");
 287                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 288                 }
 289
 290                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 291         }
 292
 293         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 294         kfree(buf);
 295         return ret;
 296 }
 297
 298 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
 299                                        char __user *user_buf,
 300                                        size_t count,
 301                                        loff_t *ppos)
 302 {
 303         ssize_t ret;
 304         struct iwl_priv *priv = file->private_data;
 305         int pos = 0, ofs = 0, buf_size = 0;
 306         const u8 *ptr;
 307         char *buf;
 308         u16 eeprom_ver;
 309         size_t eeprom_len = priv->eeprom_blob_size;
 310         buf_size = 4 * eeprom_len + 256;
 311
 312         if (eeprom_len % 16)
 313                 return -ENODATA;
 314
 315         ptr = priv->eeprom_blob;
 316         if (!ptr)
 317                 return -ENOMEM;
 318
 319         /* 4 characters for byte 0xYY */
 320         buf = kzalloc(buf_size, GFP_KERNEL);
 321         if (!buf)
 322                 return -ENOMEM;
 323
 324         eeprom_ver = priv->eeprom_data->eeprom_version;
 325         pos += scnprintf(buf + pos, buf_size - pos,
 326                          "NVM version: 0x%x\n", eeprom_ver);
 327         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
 328                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
 329                 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
 330                                    buf_size - pos, 0);
 331                 pos += strlen(buf + pos);
 332                 if (buf_size - pos > 0)
 333                         buf[pos++] = '\n';
 334         }
 335
 336         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 337         kfree(buf);
 338         return ret;
 339 }
 340
 341 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 342                                        size_t count, loff_t *ppos)
 343 {
 344         struct iwl_priv *priv = file->private_data;
 345         struct ieee80211_channel *channels = NULL;
 346         const struct ieee80211_supported_band *supp_band = NULL;
 347         int pos = 0, i, bufsz = PAGE_SIZE;
 348         char *buf;
 349         ssize_t ret;
 350
 351         buf = kzalloc(bufsz, GFP_KERNEL);
 352         if (!buf)
 353                 return -ENOMEM;
 354
 355         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
 356         if (supp_band) {
 357                 channels = supp_band->channels;
 358
 359                 pos += scnprintf(buf + pos, bufsz - pos,
 360                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
 361                                 supp_band->n_channels);
 362
 363                 for (i = 0; i < supp_band->n_channels; i++)
 364                         pos += scnprintf(buf + pos, bufsz - pos,
 365                                         "%d: %ddBm: BSS%s%s, %s.\n",
 366                                         channels[i].hw_value,
 367                                         channels[i].max_power,
 368                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 369                                         " (IEEE 802.11h required)" : "",
 370                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 371                                         || (channels[i].flags &
 372                                         IEEE80211_CHAN_RADAR)) ? "" :
 373                                         ", IBSS",
 374                                         channels[i].flags &
 375                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 376                                         "passive only" : "active/passive");
 377         }
 378         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
 379         if (supp_band) {
 380                 channels = supp_band->channels;
 381
 382                 pos += scnprintf(buf + pos, bufsz - pos,
 383                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
 384                                 supp_band->n_channels);
 385
 386                 for (i = 0; i < supp_band->n_channels; i++)
 387                         pos += scnprintf(buf + pos, bufsz - pos,
 388                                         "%d: %ddBm: BSS%s%s, %s.\n",
 389                                         channels[i].hw_value,
 390                                         channels[i].max_power,
 391                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 392                                         " (IEEE 802.11h required)" : "",
 393                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 394                                         || (channels[i].flags &
 395                                         IEEE80211_CHAN_RADAR)) ? "" :
 396                                         ", IBSS",
 397                                         channels[i].flags &
 398                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 399                                         "passive only" : "active/passive");
 400         }
 401         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 402         kfree(buf);
 403         return ret;
 404 }
 405
 406 static ssize_t iwl_dbgfs_status_read(struct file *file,
 407                                                 char __user *user_buf,
 408                                                 size_t count, loff_t *ppos) {
 409
 410         struct iwl_priv *priv = file->private_data;
 411         char buf[512];
 412         int pos = 0;
 413         const size_t bufsz = sizeof(buf);
 414
 415         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 416                 test_bit(STATUS_RF_KILL_HW, &priv->status));
 417         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 418                 test_bit(STATUS_CT_KILL, &priv->status));
 419         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 420                 test_bit(STATUS_ALIVE, &priv->status));
 421         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 422                 test_bit(STATUS_READY, &priv->status));
 423         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 424                 test_bit(STATUS_EXIT_PENDING, &priv->status));
 425         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 426                 test_bit(STATUS_STATISTICS, &priv->status));
 427         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 428                 test_bit(STATUS_SCANNING, &priv->status));
 429         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 430                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
 431         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 432                 test_bit(STATUS_SCAN_HW, &priv->status));
 433         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 434                 test_bit(STATUS_POWER_PMI, &priv->status));
 435         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 436                 test_bit(STATUS_FW_ERROR, &priv->status));
 437         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 438 }
 439
 440 static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file,
 441                                         char __user *user_buf,
 442                                         size_t count, loff_t *ppos) {
 443
 444         struct iwl_priv *priv = file->private_data;
 445
 446         int pos = 0;
 447         int cnt = 0;
 448         char *buf;
 449         int bufsz = 24 * 64; /* 24 items * 64 char per item */
 450         ssize_t ret;
 451
 452         buf = kzalloc(bufsz, GFP_KERNEL);
 453         if (!buf)
 454                 return -ENOMEM;
 455
 456         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 457                 if (priv->rx_handlers_stats[cnt] > 0)
 458                         pos += scnprintf(buf + pos, bufsz - pos,
 459                                 "\tRx handler[%36s]:\t\t %u\n",
 460                                 iwl_dvm_get_cmd_string(cnt),
 461                                 priv->rx_handlers_stats[cnt]);
 462         }
 463
 464         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 465         kfree(buf);
 466         return ret;
 467 }
 468
 469 static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
 470                                          const char __user *user_buf,
 471                                          size_t count, loff_t *ppos)
 472 {
 473         struct iwl_priv *priv = file->private_data;
 474
 475         char buf[8];
 476         int buf_size;
 477         u32 reset_flag;
 478
 479         memset(buf, 0, sizeof(buf));
 480         buf_size = min(count, sizeof(buf) -  1);
 481         if (copy_from_user(buf, user_buf, buf_size))
 482                 return -EFAULT;
 483         if (sscanf(buf, "%x", &reset_flag) != 1)
 484                 return -EFAULT;
 485         if (reset_flag == 0)
 486                 memset(&priv->rx_handlers_stats[0], 0,
 487                         sizeof(priv->rx_handlers_stats));
 488
 489         return count;
 490 }
 491
 492 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 493                                        size_t count, loff_t *ppos)
 494 {
 495         struct iwl_priv *priv = file->private_data;
 496         struct iwl_rxon_context *ctx;
 497         int pos = 0, i;
 498         char buf[256 * NUM_IWL_RXON_CTX];
 499         const size_t bufsz = sizeof(buf);
 500
 501         for_each_context(priv, ctx) {
 502                 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
 503                                  ctx->ctxid);
 504                 for (i = 0; i < AC_NUM; i++) {
 505                         pos += scnprintf(buf + pos, bufsz - pos,
 506                                 "\tcw_min\tcw_max\taifsn\ttxop\n");
 507                         pos += scnprintf(buf + pos, bufsz - pos,
 508                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
 509                                 ctx->qos_data.def_qos_parm.ac[i].cw_min,
 510                                 ctx->qos_data.def_qos_parm.ac[i].cw_max,
 511                                 ctx->qos_data.def_qos_parm.ac[i].aifsn,
 512                                 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
 513                 }
 514                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 515         }
 516         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 517 }
 518
 519 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 520                                 char __user *user_buf,
 521                                 size_t count, loff_t *ppos)
 522 {
 523         struct iwl_priv *priv = file->private_data;
 524         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 525         struct iwl_tt_restriction *restriction;
 526         char buf[100];
 527         int pos = 0;
 528         const size_t bufsz = sizeof(buf);
 529
 530         pos += scnprintf(buf + pos, bufsz - pos,
 531                         "Thermal Throttling Mode: %s\n",
 532                         tt->advanced_tt ? "Advance" : "Legacy");
 533         pos += scnprintf(buf + pos, bufsz - pos,
 534                         "Thermal Throttling State: %d\n",
 535                         tt->state);
 536         if (tt->advanced_tt) {
 537                 restriction = tt->restriction + tt->state;
 538                 pos += scnprintf(buf + pos, bufsz - pos,
 539                                 "Tx mode: %d\n",
 540                                 restriction->tx_stream);
 541                 pos += scnprintf(buf + pos, bufsz - pos,
 542                                 "Rx mode: %d\n",
 543                                 restriction->rx_stream);
 544                 pos += scnprintf(buf + pos, bufsz - pos,
 545                                 "HT mode: %d\n",
 546                                 restriction->is_ht);
 547         }
 548         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 549 }
 550
 551 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 552                                          const char __user *user_buf,
 553                                          size_t count, loff_t *ppos)
 554 {
 555         struct iwl_priv *priv = file->private_data;
 556         char buf[8];
 557         int buf_size;
 558         int ht40;
 559
 560         memset(buf, 0, sizeof(buf));
 561         buf_size = min(count, sizeof(buf) -  1);
 562         if (copy_from_user(buf, user_buf, buf_size))
 563                 return -EFAULT;
 564         if (sscanf(buf, "%d", &ht40) != 1)
 565                 return -EFAULT;
 566         if (!iwl_is_any_associated(priv))
 567                 priv->disable_ht40 = ht40 ? true : false;
 568         else
 569                 return -EINVAL;
 570
 571         return count;
 572 }
 573
 574 static ssize_t iwl_dbgfs_disable_ht40_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[100];
 580         int pos = 0;
 581         const size_t bufsz = sizeof(buf);
 582
 583         pos += scnprintf(buf + pos, bufsz - pos,
 584                         "11n 40MHz Mode: %s\n",
 585                         priv->disable_ht40 ? "Disabled" : "Enabled");
 586         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 587 }
 588
 589 static ssize_t iwl_dbgfs_temperature_read(struct file *file,
 590                                          char __user *user_buf,
 591                                          size_t count, loff_t *ppos)
 592 {
 593         struct iwl_priv *priv = file->private_data;
 594         char buf[8];
 595         int pos = 0;
 596         const size_t bufsz = sizeof(buf);
 597
 598         pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->temperature);
 599         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 600 }
 601
 602
 603 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 604                                                     const char __user *user_buf,
 605                                                     size_t count, loff_t *ppos)
 606 {
 607         struct iwl_priv *priv = file->private_data;
 608         char buf[8];
 609         int buf_size;
 610         int value;
 611
 612         memset(buf, 0, sizeof(buf));
 613         buf_size = min(count, sizeof(buf) -  1);
 614         if (copy_from_user(buf, user_buf, buf_size))
 615                 return -EFAULT;
 616
 617         if (sscanf(buf, "%d", &value) != 1)
 618                 return -EINVAL;
 619
 620         /*
 621          * Our users expect 0 to be "CAM", but 0 isn't actually
 622          * valid here. However, let's not confuse them and present
 623          * IWL_POWER_INDEX_1 as "1", not "0".
 624          */
 625         if (value == 0)
 626                 return -EINVAL;
 627         else if (value > 0)
 628                 value -= 1;
 629
 630         if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 631                 return -EINVAL;
 632
 633         if (!iwl_is_ready_rf(priv))
 634                 return -EAGAIN;
 635
 636         priv->power_data.debug_sleep_level_override = value;
 637
 638         mutex_lock(&priv->mutex);
 639         iwl_power_update_mode(priv, true);
 640         mutex_unlock(&priv->mutex);
 641
 642         return count;
 643 }
 644
 645 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 646                                                    char __user *user_buf,
 647                                                    size_t count, loff_t *ppos)
 648 {
 649         struct iwl_priv *priv = file->private_data;
 650         char buf[10];
 651         int pos, value;
 652         const size_t bufsz = sizeof(buf);
 653
 654         /* see the write function */
 655         value = priv->power_data.debug_sleep_level_override;
 656         if (value >= 0)
 657                 value += 1;
 658
 659         pos = scnprintf(buf, bufsz, "%d\n", value);
 660         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 661 }
 662
 663 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 664                                                     char __user *user_buf,
 665                                                     size_t count, loff_t *ppos)
 666 {
 667         struct iwl_priv *priv = file->private_data;
 668         char buf[200];
 669         int pos = 0, i;
 670         const size_t bufsz = sizeof(buf);
 671         struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 672
 673         pos += scnprintf(buf + pos, bufsz - pos,
 674                          "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 675         pos += scnprintf(buf + pos, bufsz - pos,
 676                          "RX/TX timeout: %d/%d usec\n",
 677                          le32_to_cpu(cmd->rx_data_timeout),
 678                          le32_to_cpu(cmd->tx_data_timeout));
 679         for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 680                 pos += scnprintf(buf + pos, bufsz - pos,
 681                                  "sleep_interval[%d]: %d\n", i,
 682                                  le32_to_cpu(cmd->sleep_interval[i]));
 683
 684         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 685 }
 686
 687 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 688 DEBUGFS_READ_FILE_OPS(wowlan_sram);
 689 DEBUGFS_READ_FILE_OPS(nvm);
 690 DEBUGFS_READ_FILE_OPS(stations);
 691 DEBUGFS_READ_FILE_OPS(channels);
 692 DEBUGFS_READ_FILE_OPS(status);
 693 DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers);
 694 DEBUGFS_READ_FILE_OPS(qos);
 695 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 696 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 697 DEBUGFS_READ_FILE_OPS(temperature);
 698 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 699 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 700
 701 static const char *fmt_value = "  %-30s %10u\n";
 702 static const char *fmt_hex   = "  %-30s       0x%02X\n";
 703 static const char *fmt_table = "  %-30s %10u  %10u  %10u  %10u\n";
 704 static const char *fmt_header =
 705         "%-32s    current  cumulative       delta         max\n";
 706
 707 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
 708 {
 709         int p = 0;
 710         u32 flag;
 711
 712         lockdep_assert_held(&priv->statistics.lock);
 713
 714         flag = le32_to_cpu(priv->statistics.flag);
 715
 716         p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
 717         if (flag & UCODE_STATISTICS_CLEAR_MSK)
 718                 p += scnprintf(buf + p, bufsz - p,
 719                 "\tStatistics have been cleared\n");
 720         p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
 721                 (flag & UCODE_STATISTICS_FREQUENCY_MSK)
 722                 ? "2.4 GHz" : "5.2 GHz");
 723         p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
 724                 (flag & UCODE_STATISTICS_NARROW_BAND_MSK)
 725                  ? "enabled" : "disabled");
 726
 727         return p;
 728 }
 729
 730 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
 731                                         char __user *user_buf,
 732                                         size_t count, loff_t *ppos)
 733 {
 734         struct iwl_priv *priv = file->private_data;
 735         int pos = 0;
 736         char *buf;
 737         int bufsz = sizeof(struct statistics_rx_phy) * 40 +
 738                     sizeof(struct statistics_rx_non_phy) * 40 +
 739                     sizeof(struct statistics_rx_ht_phy) * 40 + 400;
 740         ssize_t ret;
 741         struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
 742         struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
 743         struct statistics_rx_non_phy *general, *accum_general;
 744         struct statistics_rx_non_phy *delta_general, *max_general;
 745         struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
 746
 747         if (!iwl_is_alive(priv))
 748                 return -EAGAIN;
 749
 750         buf = kzalloc(bufsz, GFP_KERNEL);
 751         if (!buf)
 752                 return -ENOMEM;
 753
 754         /*
 755          * the statistic information display here is based on
 756          * the last statistics notification from uCode
 757          * might not reflect the current uCode activity
 758          */
 759         spin_lock_bh(&priv->statistics.lock);
 760         ofdm = &priv->statistics.rx_ofdm;
 761         cck = &priv->statistics.rx_cck;
 762         general = &priv->statistics.rx_non_phy;
 763         ht = &priv->statistics.rx_ofdm_ht;
 764         accum_ofdm = &priv->accum_stats.rx_ofdm;
 765         accum_cck = &priv->accum_stats.rx_cck;
 766         accum_general = &priv->accum_stats.rx_non_phy;
 767         accum_ht = &priv->accum_stats.rx_ofdm_ht;
 768         delta_ofdm = &priv->delta_stats.rx_ofdm;
 769         delta_cck = &priv->delta_stats.rx_cck;
 770         delta_general = &priv->delta_stats.rx_non_phy;
 771         delta_ht = &priv->delta_stats.rx_ofdm_ht;
 772         max_ofdm = &priv->max_delta_stats.rx_ofdm;
 773         max_cck = &priv->max_delta_stats.rx_cck;
 774         max_general = &priv->max_delta_stats.rx_non_phy;
 775         max_ht = &priv->max_delta_stats.rx_ofdm_ht;
 776
 777         pos += iwl_statistics_flag(priv, buf, bufsz);
 778         pos += scnprintf(buf + pos, bufsz - pos,
 779                          fmt_header, "Statistics_Rx - OFDM:");
 780         pos += scnprintf(buf + pos, bufsz - pos,
 781                          fmt_table, "ina_cnt:",
 782                          le32_to_cpu(ofdm->ina_cnt),
 783                          accum_ofdm->ina_cnt,
 784                          delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
 785         pos += scnprintf(buf + pos, bufsz - pos,
 786                          fmt_table, "fina_cnt:",
 787                          le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
 788                          delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
 789         pos += scnprintf(buf + pos, bufsz - pos,
 790                          fmt_table, "plcp_err:",
 791                          le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
 792                          delta_ofdm->plcp_err, max_ofdm->plcp_err);
 793         pos += scnprintf(buf + pos, bufsz - pos,
 794                          fmt_table, "crc32_err:",
 795                          le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
 796                          delta_ofdm->crc32_err, max_ofdm->crc32_err);
 797         pos += scnprintf(buf + pos, bufsz - pos,
 798                          fmt_table, "overrun_err:",
 799                          le32_to_cpu(ofdm->overrun_err),
 800                          accum_ofdm->overrun_err, delta_ofdm->overrun_err,
 801                          max_ofdm->overrun_err);
 802         pos += scnprintf(buf + pos, bufsz - pos,
 803                          fmt_table, "early_overrun_err:",
 804                          le32_to_cpu(ofdm->early_overrun_err),
 805                          accum_ofdm->early_overrun_err,
 806                          delta_ofdm->early_overrun_err,
 807                          max_ofdm->early_overrun_err);
 808         pos += scnprintf(buf + pos, bufsz - pos,
 809                          fmt_table, "crc32_good:",
 810                          le32_to_cpu(ofdm->crc32_good),
 811                          accum_ofdm->crc32_good, delta_ofdm->crc32_good,
 812                          max_ofdm->crc32_good);
 813         pos += scnprintf(buf + pos, bufsz - pos,
 814                          fmt_table, "false_alarm_cnt:",
 815                          le32_to_cpu(ofdm->false_alarm_cnt),
 816                          accum_ofdm->false_alarm_cnt,
 817                          delta_ofdm->false_alarm_cnt,
 818                          max_ofdm->false_alarm_cnt);
 819         pos += scnprintf(buf + pos, bufsz - pos,
 820                          fmt_table, "fina_sync_err_cnt:",
 821                          le32_to_cpu(ofdm->fina_sync_err_cnt),
 822                          accum_ofdm->fina_sync_err_cnt,
 823                          delta_ofdm->fina_sync_err_cnt,
 824                          max_ofdm->fina_sync_err_cnt);
 825         pos += scnprintf(buf + pos, bufsz - pos,
 826                          fmt_table, "sfd_timeout:",
 827                          le32_to_cpu(ofdm->sfd_timeout),
 828                          accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
 829                          max_ofdm->sfd_timeout);
 830         pos += scnprintf(buf + pos, bufsz - pos,
 831                          fmt_table, "fina_timeout:",
 832                          le32_to_cpu(ofdm->fina_timeout),
 833                          accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
 834                          max_ofdm->fina_timeout);
 835         pos += scnprintf(buf + pos, bufsz - pos,
 836                          fmt_table, "unresponded_rts:",
 837                          le32_to_cpu(ofdm->unresponded_rts),
 838                          accum_ofdm->unresponded_rts,
 839                          delta_ofdm->unresponded_rts,
 840                          max_ofdm->unresponded_rts);
 841         pos += scnprintf(buf + pos, bufsz - pos,
 842                          fmt_table, "rxe_frame_lmt_ovrun:",
 843                          le32_to_cpu(ofdm->rxe_frame_limit_overrun),
 844                          accum_ofdm->rxe_frame_limit_overrun,
 845                          delta_ofdm->rxe_frame_limit_overrun,
 846                          max_ofdm->rxe_frame_limit_overrun);
 847         pos += scnprintf(buf + pos, bufsz - pos,
 848                          fmt_table, "sent_ack_cnt:",
 849                          le32_to_cpu(ofdm->sent_ack_cnt),
 850                          accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
 851                          max_ofdm->sent_ack_cnt);
 852         pos += scnprintf(buf + pos, bufsz - pos,
 853                          fmt_table, "sent_cts_cnt:",
 854                          le32_to_cpu(ofdm->sent_cts_cnt),
 855                          accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
 856                          max_ofdm->sent_cts_cnt);
 857         pos += scnprintf(buf + pos, bufsz - pos,
 858                          fmt_table, "sent_ba_rsp_cnt:",
 859                          le32_to_cpu(ofdm->sent_ba_rsp_cnt),
 860                          accum_ofdm->sent_ba_rsp_cnt,
 861                          delta_ofdm->sent_ba_rsp_cnt,
 862                          max_ofdm->sent_ba_rsp_cnt);
 863         pos += scnprintf(buf + pos, bufsz - pos,
 864                          fmt_table, "dsp_self_kill:",
 865                          le32_to_cpu(ofdm->dsp_self_kill),
 866                          accum_ofdm->dsp_self_kill,
 867                          delta_ofdm->dsp_self_kill,
 868                          max_ofdm->dsp_self_kill);
 869         pos += scnprintf(buf + pos, bufsz - pos,
 870                          fmt_table, "mh_format_err:",
 871                          le32_to_cpu(ofdm->mh_format_err),
 872                          accum_ofdm->mh_format_err,
 873                          delta_ofdm->mh_format_err,
 874                          max_ofdm->mh_format_err);
 875         pos += scnprintf(buf + pos, bufsz - pos,
 876                          fmt_table, "re_acq_main_rssi_sum:",
 877                          le32_to_cpu(ofdm->re_acq_main_rssi_sum),
 878                          accum_ofdm->re_acq_main_rssi_sum,
 879                          delta_ofdm->re_acq_main_rssi_sum,
 880                          max_ofdm->re_acq_main_rssi_sum);
 881
 882         pos += scnprintf(buf + pos, bufsz - pos,
 883                          fmt_header, "Statistics_Rx - CCK:");
 884         pos += scnprintf(buf + pos, bufsz - pos,
 885                          fmt_table, "ina_cnt:",
 886                          le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
 887                          delta_cck->ina_cnt, max_cck->ina_cnt);
 888         pos += scnprintf(buf + pos, bufsz - pos,
 889                          fmt_table, "fina_cnt:",
 890                          le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
 891                          delta_cck->fina_cnt, max_cck->fina_cnt);
 892         pos += scnprintf(buf + pos, bufsz - pos,
 893                          fmt_table, "plcp_err:",
 894                          le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
 895                          delta_cck->plcp_err, max_cck->plcp_err);
 896         pos += scnprintf(buf + pos, bufsz - pos,
 897                          fmt_table, "crc32_err:",
 898                          le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
 899                          delta_cck->crc32_err, max_cck->crc32_err);
 900         pos += scnprintf(buf + pos, bufsz - pos,
 901                          fmt_table, "overrun_err:",
 902                          le32_to_cpu(cck->overrun_err),
 903                          accum_cck->overrun_err, delta_cck->overrun_err,
 904                          max_cck->overrun_err);
 905         pos += scnprintf(buf + pos, bufsz - pos,
 906                          fmt_table, "early_overrun_err:",
 907                          le32_to_cpu(cck->early_overrun_err),
 908                          accum_cck->early_overrun_err,
 909                          delta_cck->early_overrun_err,
 910                          max_cck->early_overrun_err);
 911         pos += scnprintf(buf + pos, bufsz - pos,
 912                          fmt_table, "crc32_good:",
 913                          le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
 914                          delta_cck->crc32_good, max_cck->crc32_good);
 915         pos += scnprintf(buf + pos, bufsz - pos,
 916                          fmt_table, "false_alarm_cnt:",
 917                          le32_to_cpu(cck->false_alarm_cnt),
 918                          accum_cck->false_alarm_cnt,
 919                          delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
 920         pos += scnprintf(buf + pos, bufsz - pos,
 921                          fmt_table, "fina_sync_err_cnt:",
 922                          le32_to_cpu(cck->fina_sync_err_cnt),
 923                          accum_cck->fina_sync_err_cnt,
 924                          delta_cck->fina_sync_err_cnt,
 925                          max_cck->fina_sync_err_cnt);
 926         pos += scnprintf(buf + pos, bufsz - pos,
 927                          fmt_table, "sfd_timeout:",
 928                          le32_to_cpu(cck->sfd_timeout),
 929                          accum_cck->sfd_timeout, delta_cck->sfd_timeout,
 930                          max_cck->sfd_timeout);
 931         pos += scnprintf(buf + pos, bufsz - pos,
 932                          fmt_table, "fina_timeout:",
 933                          le32_to_cpu(cck->fina_timeout),
 934                          accum_cck->fina_timeout, delta_cck->fina_timeout,
 935                          max_cck->fina_timeout);
 936         pos += scnprintf(buf + pos, bufsz - pos,
 937                          fmt_table, "unresponded_rts:",
 938                          le32_to_cpu(cck->unresponded_rts),
 939                          accum_cck->unresponded_rts, delta_cck->unresponded_rts,
 940                          max_cck->unresponded_rts);
 941         pos += scnprintf(buf + pos, bufsz - pos,
 942                          fmt_table, "rxe_frame_lmt_ovrun:",
 943                          le32_to_cpu(cck->rxe_frame_limit_overrun),
 944                          accum_cck->rxe_frame_limit_overrun,
 945                          delta_cck->rxe_frame_limit_overrun,
 946                          max_cck->rxe_frame_limit_overrun);
 947         pos += scnprintf(buf + pos, bufsz - pos,
 948                          fmt_table, "sent_ack_cnt:",
 949                          le32_to_cpu(cck->sent_ack_cnt),
 950                          accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
 951                          max_cck->sent_ack_cnt);
 952         pos += scnprintf(buf + pos, bufsz - pos,
 953                          fmt_table, "sent_cts_cnt:",
 954                          le32_to_cpu(cck->sent_cts_cnt),
 955                          accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
 956                          max_cck->sent_cts_cnt);
 957         pos += scnprintf(buf + pos, bufsz - pos,
 958                          fmt_table, "sent_ba_rsp_cnt:",
 959                          le32_to_cpu(cck->sent_ba_rsp_cnt),
 960                          accum_cck->sent_ba_rsp_cnt,
 961                          delta_cck->sent_ba_rsp_cnt,
 962                          max_cck->sent_ba_rsp_cnt);
 963         pos += scnprintf(buf + pos, bufsz - pos,
 964                          fmt_table, "dsp_self_kill:",
 965                          le32_to_cpu(cck->dsp_self_kill),
 966                          accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
 967                          max_cck->dsp_self_kill);
 968         pos += scnprintf(buf + pos, bufsz - pos,
 969                          fmt_table, "mh_format_err:",
 970                          le32_to_cpu(cck->mh_format_err),
 971                          accum_cck->mh_format_err, delta_cck->mh_format_err,
 972                          max_cck->mh_format_err);
 973         pos += scnprintf(buf + pos, bufsz - pos,
 974                          fmt_table, "re_acq_main_rssi_sum:",
 975                          le32_to_cpu(cck->re_acq_main_rssi_sum),
 976                          accum_cck->re_acq_main_rssi_sum,
 977                          delta_cck->re_acq_main_rssi_sum,
 978                          max_cck->re_acq_main_rssi_sum);
 979
 980         pos += scnprintf(buf + pos, bufsz - pos,
 981                          fmt_header, "Statistics_Rx - GENERAL:");
 982         pos += scnprintf(buf + pos, bufsz - pos,
 983                          fmt_table, "bogus_cts:",
 984                          le32_to_cpu(general->bogus_cts),
 985                          accum_general->bogus_cts, delta_general->bogus_cts,
 986                          max_general->bogus_cts);
 987         pos += scnprintf(buf + pos, bufsz - pos,
 988                          fmt_table, "bogus_ack:",
 989                          le32_to_cpu(general->bogus_ack),
 990                          accum_general->bogus_ack, delta_general->bogus_ack,
 991                          max_general->bogus_ack);
 992         pos += scnprintf(buf + pos, bufsz - pos,
 993                          fmt_table, "non_bssid_frames:",
 994                          le32_to_cpu(general->non_bssid_frames),
 995                          accum_general->non_bssid_frames,
 996                          delta_general->non_bssid_frames,
 997                          max_general->non_bssid_frames);
 998         pos += scnprintf(buf + pos, bufsz - pos,
 999                          fmt_table, "filtered_frames:",
1000                          le32_to_cpu(general->filtered_frames),
1001                          accum_general->filtered_frames,
1002                          delta_general->filtered_frames,
1003                          max_general->filtered_frames);
1004         pos += scnprintf(buf + pos, bufsz - pos,
1005                          fmt_table, "non_channel_beacons:",
1006                          le32_to_cpu(general->non_channel_beacons),
1007                          accum_general->non_channel_beacons,
1008                          delta_general->non_channel_beacons,
1009                          max_general->non_channel_beacons);
1010         pos += scnprintf(buf + pos, bufsz - pos,
1011                          fmt_table, "channel_beacons:",
1012                          le32_to_cpu(general->channel_beacons),
1013                          accum_general->channel_beacons,
1014                          delta_general->channel_beacons,
1015                          max_general->channel_beacons);
1016         pos += scnprintf(buf + pos, bufsz - pos,
1017                          fmt_table, "num_missed_bcon:",
1018                          le32_to_cpu(general->num_missed_bcon),
1019                          accum_general->num_missed_bcon,
1020                          delta_general->num_missed_bcon,
1021                          max_general->num_missed_bcon);
1022         pos += scnprintf(buf + pos, bufsz - pos,
1023                          fmt_table, "adc_rx_saturation_time:",
1024                          le32_to_cpu(general->adc_rx_saturation_time),
1025                          accum_general->adc_rx_saturation_time,
1026                          delta_general->adc_rx_saturation_time,
1027                          max_general->adc_rx_saturation_time);
1028         pos += scnprintf(buf + pos, bufsz - pos,
1029                          fmt_table, "ina_detect_search_tm:",
1030                          le32_to_cpu(general->ina_detection_search_time),
1031                          accum_general->ina_detection_search_time,
1032                          delta_general->ina_detection_search_time,
1033                          max_general->ina_detection_search_time);
1034         pos += scnprintf(buf + pos, bufsz - pos,
1035                          fmt_table, "beacon_silence_rssi_a:",
1036                          le32_to_cpu(general->beacon_silence_rssi_a),
1037                          accum_general->beacon_silence_rssi_a,
1038                          delta_general->beacon_silence_rssi_a,
1039                          max_general->beacon_silence_rssi_a);
1040         pos += scnprintf(buf + pos, bufsz - pos,
1041                          fmt_table, "beacon_silence_rssi_b:",
1042                          le32_to_cpu(general->beacon_silence_rssi_b),
1043                          accum_general->beacon_silence_rssi_b,
1044                          delta_general->beacon_silence_rssi_b,
1045                          max_general->beacon_silence_rssi_b);
1046         pos += scnprintf(buf + pos, bufsz - pos,
1047                          fmt_table, "beacon_silence_rssi_c:",
1048                          le32_to_cpu(general->beacon_silence_rssi_c),
1049                          accum_general->beacon_silence_rssi_c,
1050                          delta_general->beacon_silence_rssi_c,
1051                          max_general->beacon_silence_rssi_c);
1052         pos += scnprintf(buf + pos, bufsz - pos,
1053                          fmt_table, "interference_data_flag:",
1054                          le32_to_cpu(general->interference_data_flag),
1055                          accum_general->interference_data_flag,
1056                          delta_general->interference_data_flag,
1057                          max_general->interference_data_flag);
1058         pos += scnprintf(buf + pos, bufsz - pos,
1059                          fmt_table, "channel_load:",
1060                          le32_to_cpu(general->channel_load),
1061                          accum_general->channel_load,
1062                          delta_general->channel_load,
1063                          max_general->channel_load);
1064         pos += scnprintf(buf + pos, bufsz - pos,
1065                          fmt_table, "dsp_false_alarms:",
1066                          le32_to_cpu(general->dsp_false_alarms),
1067                          accum_general->dsp_false_alarms,
1068                          delta_general->dsp_false_alarms,
1069                          max_general->dsp_false_alarms);
1070         pos += scnprintf(buf + pos, bufsz - pos,
1071                          fmt_table, "beacon_rssi_a:",
1072                          le32_to_cpu(general->beacon_rssi_a),
1073                          accum_general->beacon_rssi_a,
1074                          delta_general->beacon_rssi_a,
1075                          max_general->beacon_rssi_a);
1076         pos += scnprintf(buf + pos, bufsz - pos,
1077                          fmt_table, "beacon_rssi_b:",
1078                          le32_to_cpu(general->beacon_rssi_b),
1079                          accum_general->beacon_rssi_b,
1080                          delta_general->beacon_rssi_b,
1081                          max_general->beacon_rssi_b);
1082         pos += scnprintf(buf + pos, bufsz - pos,
1083                          fmt_table, "beacon_rssi_c:",
1084                          le32_to_cpu(general->beacon_rssi_c),
1085                          accum_general->beacon_rssi_c,
1086                          delta_general->beacon_rssi_c,
1087                          max_general->beacon_rssi_c);
1088         pos += scnprintf(buf + pos, bufsz - pos,
1089                          fmt_table, "beacon_energy_a:",
1090                          le32_to_cpu(general->beacon_energy_a),
1091                          accum_general->beacon_energy_a,
1092                          delta_general->beacon_energy_a,
1093                          max_general->beacon_energy_a);
1094         pos += scnprintf(buf + pos, bufsz - pos,
1095                          fmt_table, "beacon_energy_b:",
1096                          le32_to_cpu(general->beacon_energy_b),
1097                          accum_general->beacon_energy_b,
1098                          delta_general->beacon_energy_b,
1099                          max_general->beacon_energy_b);
1100         pos += scnprintf(buf + pos, bufsz - pos,
1101                          fmt_table, "beacon_energy_c:",
1102                          le32_to_cpu(general->beacon_energy_c),
1103                          accum_general->beacon_energy_c,
1104                          delta_general->beacon_energy_c,
1105                          max_general->beacon_energy_c);
1106
1107         pos += scnprintf(buf + pos, bufsz - pos,
1108                          fmt_header, "Statistics_Rx - OFDM_HT:");
1109         pos += scnprintf(buf + pos, bufsz - pos,
1110                          fmt_table, "plcp_err:",
1111                          le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1112                          delta_ht->plcp_err, max_ht->plcp_err);
1113         pos += scnprintf(buf + pos, bufsz - pos,
1114                          fmt_table, "overrun_err:",
1115                          le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1116                          delta_ht->overrun_err, max_ht->overrun_err);
1117         pos += scnprintf(buf + pos, bufsz - pos,
1118                          fmt_table, "early_overrun_err:",
1119                          le32_to_cpu(ht->early_overrun_err),
1120                          accum_ht->early_overrun_err,
1121                          delta_ht->early_overrun_err,
1122                          max_ht->early_overrun_err);
1123         pos += scnprintf(buf + pos, bufsz - pos,
1124                          fmt_table, "crc32_good:",
1125                          le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1126                          delta_ht->crc32_good, max_ht->crc32_good);
1127         pos += scnprintf(buf + pos, bufsz - pos,
1128                          fmt_table, "crc32_err:",
1129                          le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1130                          delta_ht->crc32_err, max_ht->crc32_err);
1131         pos += scnprintf(buf + pos, bufsz - pos,
1132                          fmt_table, "mh_format_err:",
1133                          le32_to_cpu(ht->mh_format_err),
1134                          accum_ht->mh_format_err,
1135                          delta_ht->mh_format_err, max_ht->mh_format_err);
1136         pos += scnprintf(buf + pos, bufsz - pos,
1137                          fmt_table, "agg_crc32_good:",
1138                          le32_to_cpu(ht->agg_crc32_good),
1139                          accum_ht->agg_crc32_good,
1140                          delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1141         pos += scnprintf(buf + pos, bufsz - pos,
1142                          fmt_table, "agg_mpdu_cnt:",
1143                          le32_to_cpu(ht->agg_mpdu_cnt),
1144                          accum_ht->agg_mpdu_cnt,
1145                          delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1146         pos += scnprintf(buf + pos, bufsz - pos,
1147                          fmt_table, "agg_cnt:",
1148                          le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1149                          delta_ht->agg_cnt, max_ht->agg_cnt);
1150         pos += scnprintf(buf + pos, bufsz - pos,
1151                          fmt_table, "unsupport_mcs:",
1152                          le32_to_cpu(ht->unsupport_mcs),
1153                          accum_ht->unsupport_mcs,
1154                          delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1155
1156         spin_unlock_bh(&priv->statistics.lock);
1157
1158         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1159         kfree(buf);
1160         return ret;
1161 }
1162
1163 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1164                                         char __user *user_buf,
1165                                         size_t count, loff_t *ppos)
1166 {
1167         struct iwl_priv *priv = file->private_data;
1168         int pos = 0;
1169         char *buf;
1170         int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1171         ssize_t ret;
1172         struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1173
1174         if (!iwl_is_alive(priv))
1175                 return -EAGAIN;
1176
1177         buf = kzalloc(bufsz, GFP_KERNEL);
1178         if (!buf)
1179                 return -ENOMEM;
1180
1181         /* the statistic information display here is based on
1182          * the last statistics notification from uCode
1183          * might not reflect the current uCode activity
1184          */
1185         spin_lock_bh(&priv->statistics.lock);
1186
1187         tx = &priv->statistics.tx;
1188         accum_tx = &priv->accum_stats.tx;
1189         delta_tx = &priv->delta_stats.tx;
1190         max_tx = &priv->max_delta_stats.tx;
1191
1192         pos += iwl_statistics_flag(priv, buf, bufsz);
1193         pos += scnprintf(buf + pos, bufsz - pos,
1194                          fmt_header, "Statistics_Tx:");
1195         pos += scnprintf(buf + pos, bufsz - pos,
1196                          fmt_table, "preamble:",
1197                          le32_to_cpu(tx->preamble_cnt),
1198                          accum_tx->preamble_cnt,
1199                          delta_tx->preamble_cnt, max_tx->preamble_cnt);
1200         pos += scnprintf(buf + pos, bufsz - pos,
1201                          fmt_table, "rx_detected_cnt:",
1202                          le32_to_cpu(tx->rx_detected_cnt),
1203                          accum_tx->rx_detected_cnt,
1204                          delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1205         pos += scnprintf(buf + pos, bufsz - pos,
1206                          fmt_table, "bt_prio_defer_cnt:",
1207                          le32_to_cpu(tx->bt_prio_defer_cnt),
1208                          accum_tx->bt_prio_defer_cnt,
1209                          delta_tx->bt_prio_defer_cnt,
1210                          max_tx->bt_prio_defer_cnt);
1211         pos += scnprintf(buf + pos, bufsz - pos,
1212                          fmt_table, "bt_prio_kill_cnt:",
1213                          le32_to_cpu(tx->bt_prio_kill_cnt),
1214                          accum_tx->bt_prio_kill_cnt,
1215                          delta_tx->bt_prio_kill_cnt,
1216                          max_tx->bt_prio_kill_cnt);
1217         pos += scnprintf(buf + pos, bufsz - pos,
1218                          fmt_table, "few_bytes_cnt:",
1219                          le32_to_cpu(tx->few_bytes_cnt),
1220                          accum_tx->few_bytes_cnt,
1221                          delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1222         pos += scnprintf(buf + pos, bufsz - pos,
1223                          fmt_table, "cts_timeout:",
1224                          le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1225                          delta_tx->cts_timeout, max_tx->cts_timeout);
1226         pos += scnprintf(buf + pos, bufsz - pos,
1227                          fmt_table, "ack_timeout:",
1228                          le32_to_cpu(tx->ack_timeout),
1229                          accum_tx->ack_timeout,
1230                          delta_tx->ack_timeout, max_tx->ack_timeout);
1231         pos += scnprintf(buf + pos, bufsz - pos,
1232                          fmt_table, "expected_ack_cnt:",
1233                          le32_to_cpu(tx->expected_ack_cnt),
1234                          accum_tx->expected_ack_cnt,
1235                          delta_tx->expected_ack_cnt,
1236                          max_tx->expected_ack_cnt);
1237         pos += scnprintf(buf + pos, bufsz - pos,
1238                          fmt_table, "actual_ack_cnt:",
1239                          le32_to_cpu(tx->actual_ack_cnt),
1240                          accum_tx->actual_ack_cnt,
1241                          delta_tx->actual_ack_cnt,
1242                          max_tx->actual_ack_cnt);
1243         pos += scnprintf(buf + pos, bufsz - pos,
1244                          fmt_table, "dump_msdu_cnt:",
1245                          le32_to_cpu(tx->dump_msdu_cnt),
1246                          accum_tx->dump_msdu_cnt,
1247                          delta_tx->dump_msdu_cnt,
1248                          max_tx->dump_msdu_cnt);
1249         pos += scnprintf(buf + pos, bufsz - pos,
1250                          fmt_table, "abort_nxt_frame_mismatch:",
1251                          le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1252                          accum_tx->burst_abort_next_frame_mismatch_cnt,
1253                          delta_tx->burst_abort_next_frame_mismatch_cnt,
1254                          max_tx->burst_abort_next_frame_mismatch_cnt);
1255         pos += scnprintf(buf + pos, bufsz - pos,
1256                          fmt_table, "abort_missing_nxt_frame:",
1257                          le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1258                          accum_tx->burst_abort_missing_next_frame_cnt,
1259                          delta_tx->burst_abort_missing_next_frame_cnt,
1260                          max_tx->burst_abort_missing_next_frame_cnt);
1261         pos += scnprintf(buf + pos, bufsz - pos,
1262                          fmt_table, "cts_timeout_collision:",
1263                          le32_to_cpu(tx->cts_timeout_collision),
1264                          accum_tx->cts_timeout_collision,
1265                          delta_tx->cts_timeout_collision,
1266                          max_tx->cts_timeout_collision);
1267         pos += scnprintf(buf + pos, bufsz - pos,
1268                          fmt_table, "ack_ba_timeout_collision:",
1269                          le32_to_cpu(tx->ack_or_ba_timeout_collision),
1270                          accum_tx->ack_or_ba_timeout_collision,
1271                          delta_tx->ack_or_ba_timeout_collision,
1272                          max_tx->ack_or_ba_timeout_collision);
1273         pos += scnprintf(buf + pos, bufsz - pos,
1274                          fmt_table, "agg ba_timeout:",
1275                          le32_to_cpu(tx->agg.ba_timeout),
1276                          accum_tx->agg.ba_timeout,
1277                          delta_tx->agg.ba_timeout,
1278                          max_tx->agg.ba_timeout);
1279         pos += scnprintf(buf + pos, bufsz - pos,
1280                          fmt_table, "agg ba_resched_frames:",
1281                          le32_to_cpu(tx->agg.ba_reschedule_frames),
1282                          accum_tx->agg.ba_reschedule_frames,
1283                          delta_tx->agg.ba_reschedule_frames,
1284                          max_tx->agg.ba_reschedule_frames);
1285         pos += scnprintf(buf + pos, bufsz - pos,
1286                          fmt_table, "agg scd_query_agg_frame:",
1287                          le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1288                          accum_tx->agg.scd_query_agg_frame_cnt,
1289                          delta_tx->agg.scd_query_agg_frame_cnt,
1290                          max_tx->agg.scd_query_agg_frame_cnt);
1291         pos += scnprintf(buf + pos, bufsz - pos,
1292                          fmt_table, "agg scd_query_no_agg:",
1293                          le32_to_cpu(tx->agg.scd_query_no_agg),
1294                          accum_tx->agg.scd_query_no_agg,
1295                          delta_tx->agg.scd_query_no_agg,
1296                          max_tx->agg.scd_query_no_agg);
1297         pos += scnprintf(buf + pos, bufsz - pos,
1298                          fmt_table, "agg scd_query_agg:",
1299                          le32_to_cpu(tx->agg.scd_query_agg),
1300                          accum_tx->agg.scd_query_agg,
1301                          delta_tx->agg.scd_query_agg,
1302                          max_tx->agg.scd_query_agg);
1303         pos += scnprintf(buf + pos, bufsz - pos,
1304                          fmt_table, "agg scd_query_mismatch:",
1305                          le32_to_cpu(tx->agg.scd_query_mismatch),
1306                          accum_tx->agg.scd_query_mismatch,
1307                          delta_tx->agg.scd_query_mismatch,
1308                          max_tx->agg.scd_query_mismatch);
1309         pos += scnprintf(buf + pos, bufsz - pos,
1310                          fmt_table, "agg frame_not_ready:",
1311                          le32_to_cpu(tx->agg.frame_not_ready),
1312                          accum_tx->agg.frame_not_ready,
1313                          delta_tx->agg.frame_not_ready,
1314                          max_tx->agg.frame_not_ready);
1315         pos += scnprintf(buf + pos, bufsz - pos,
1316                          fmt_table, "agg underrun:",
1317                          le32_to_cpu(tx->agg.underrun),
1318                          accum_tx->agg.underrun,
1319                          delta_tx->agg.underrun, max_tx->agg.underrun);
1320         pos += scnprintf(buf + pos, bufsz - pos,
1321                          fmt_table, "agg bt_prio_kill:",
1322                          le32_to_cpu(tx->agg.bt_prio_kill),
1323                          accum_tx->agg.bt_prio_kill,
1324                          delta_tx->agg.bt_prio_kill,
1325                          max_tx->agg.bt_prio_kill);
1326         pos += scnprintf(buf + pos, bufsz - pos,
1327                          fmt_table, "agg rx_ba_rsp_cnt:",
1328                          le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1329                          accum_tx->agg.rx_ba_rsp_cnt,
1330                          delta_tx->agg.rx_ba_rsp_cnt,
1331                          max_tx->agg.rx_ba_rsp_cnt);
1332
1333         if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
1334                 pos += scnprintf(buf + pos, bufsz - pos,
1335                         "tx power: (1/2 dB step)\n");
1336                 if ((priv->eeprom_data->valid_tx_ant & ANT_A) &&
1337                     tx->tx_power.ant_a)
1338                         pos += scnprintf(buf + pos, bufsz - pos,
1339                                         fmt_hex, "antenna A:",
1340                                         tx->tx_power.ant_a);
1341                 if ((priv->eeprom_data->valid_tx_ant & ANT_B) &&
1342                     tx->tx_power.ant_b)
1343                         pos += scnprintf(buf + pos, bufsz - pos,
1344                                         fmt_hex, "antenna B:",
1345                                         tx->tx_power.ant_b);
1346                 if ((priv->eeprom_data->valid_tx_ant & ANT_C) &&
1347                     tx->tx_power.ant_c)
1348                         pos += scnprintf(buf + pos, bufsz - pos,
1349                                         fmt_hex, "antenna C:",
1350                                         tx->tx_power.ant_c);
1351         }
1352
1353         spin_unlock_bh(&priv->statistics.lock);
1354
1355         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1356         kfree(buf);
1357         return ret;
1358 }
1359
1360 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1361                                         char __user *user_buf,
1362                                         size_t count, loff_t *ppos)
1363 {
1364         struct iwl_priv *priv = file->private_data;
1365         int pos = 0;
1366         char *buf;
1367         int bufsz = sizeof(struct statistics_general) * 10 + 300;
1368         ssize_t ret;
1369         struct statistics_general_common *general, *accum_general;
1370         struct statistics_general_common *delta_general, *max_general;
1371         struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1372         struct statistics_div *div, *accum_div, *delta_div, *max_div;
1373
1374         if (!iwl_is_alive(priv))
1375                 return -EAGAIN;
1376
1377         buf = kzalloc(bufsz, GFP_KERNEL);
1378         if (!buf)
1379                 return -ENOMEM;
1380
1381         /* the statistic information display here is based on
1382          * the last statistics notification from uCode
1383          * might not reflect the current uCode activity
1384          */
1385
1386         spin_lock_bh(&priv->statistics.lock);
1387
1388         general = &priv->statistics.common;
1389         dbg = &priv->statistics.common.dbg;
1390         div = &priv->statistics.common.div;
1391         accum_general = &priv->accum_stats.common;
1392         accum_dbg = &priv->accum_stats.common.dbg;
1393         accum_div = &priv->accum_stats.common.div;
1394         delta_general = &priv->delta_stats.common;
1395         max_general = &priv->max_delta_stats.common;
1396         delta_dbg = &priv->delta_stats.common.dbg;
1397         max_dbg = &priv->max_delta_stats.common.dbg;
1398         delta_div = &priv->delta_stats.common.div;
1399         max_div = &priv->max_delta_stats.common.div;
1400
1401         pos += iwl_statistics_flag(priv, buf, bufsz);
1402         pos += scnprintf(buf + pos, bufsz - pos,
1403                          fmt_header, "Statistics_General:");
1404         pos += scnprintf(buf + pos, bufsz - pos,
1405                          fmt_value, "temperature:",
1406                          le32_to_cpu(general->temperature));
1407         pos += scnprintf(buf + pos, bufsz - pos,
1408                          fmt_value, "temperature_m:",
1409                          le32_to_cpu(general->temperature_m));
1410         pos += scnprintf(buf + pos, bufsz - pos,
1411                          fmt_value, "ttl_timestamp:",
1412                          le32_to_cpu(general->ttl_timestamp));
1413         pos += scnprintf(buf + pos, bufsz - pos,
1414                          fmt_table, "burst_check:",
1415                          le32_to_cpu(dbg->burst_check),
1416                          accum_dbg->burst_check,
1417                          delta_dbg->burst_check, max_dbg->burst_check);
1418         pos += scnprintf(buf + pos, bufsz - pos,
1419                          fmt_table, "burst_count:",
1420                          le32_to_cpu(dbg->burst_count),
1421                          accum_dbg->burst_count,
1422                          delta_dbg->burst_count, max_dbg->burst_count);
1423         pos += scnprintf(buf + pos, bufsz - pos,
1424                          fmt_table, "wait_for_silence_timeout_count:",
1425                          le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
1426                          accum_dbg->wait_for_silence_timeout_cnt,
1427                          delta_dbg->wait_for_silence_timeout_cnt,
1428                          max_dbg->wait_for_silence_timeout_cnt);
1429         pos += scnprintf(buf + pos, bufsz - pos,
1430                          fmt_table, "sleep_time:",
1431                          le32_to_cpu(general->sleep_time),
1432                          accum_general->sleep_time,
1433                          delta_general->sleep_time, max_general->sleep_time);
1434         pos += scnprintf(buf + pos, bufsz - pos,
1435                          fmt_table, "slots_out:",
1436                          le32_to_cpu(general->slots_out),
1437                          accum_general->slots_out,
1438                          delta_general->slots_out, max_general->slots_out);
1439         pos += scnprintf(buf + pos, bufsz - pos,
1440                          fmt_table, "slots_idle:",
1441                          le32_to_cpu(general->slots_idle),
1442                          accum_general->slots_idle,
1443                          delta_general->slots_idle, max_general->slots_idle);
1444         pos += scnprintf(buf + pos, bufsz - pos,
1445                          fmt_table, "tx_on_a:",
1446                          le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1447                          delta_div->tx_on_a, max_div->tx_on_a);
1448         pos += scnprintf(buf + pos, bufsz - pos,
1449                          fmt_table, "tx_on_b:",
1450                          le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1451                          delta_div->tx_on_b, max_div->tx_on_b);
1452         pos += scnprintf(buf + pos, bufsz - pos,
1453                          fmt_table, "exec_time:",
1454                          le32_to_cpu(div->exec_time), accum_div->exec_time,
1455                          delta_div->exec_time, max_div->exec_time);
1456         pos += scnprintf(buf + pos, bufsz - pos,
1457                          fmt_table, "probe_time:",
1458                          le32_to_cpu(div->probe_time), accum_div->probe_time,
1459                          delta_div->probe_time, max_div->probe_time);
1460         pos += scnprintf(buf + pos, bufsz - pos,
1461                          fmt_table, "rx_enable_counter:",
1462                          le32_to_cpu(general->rx_enable_counter),
1463                          accum_general->rx_enable_counter,
1464                          delta_general->rx_enable_counter,
1465                          max_general->rx_enable_counter);
1466         pos += scnprintf(buf + pos, bufsz - pos,
1467                          fmt_table, "num_of_sos_states:",
1468                          le32_to_cpu(general->num_of_sos_states),
1469                          accum_general->num_of_sos_states,
1470                          delta_general->num_of_sos_states,
1471                          max_general->num_of_sos_states);
1472
1473         spin_unlock_bh(&priv->statistics.lock);
1474
1475         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1476         kfree(buf);
1477         return ret;
1478 }
1479
1480 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1481                                         char __user *user_buf,
1482                                         size_t count, loff_t *ppos)
1483 {
1484         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1485         int pos = 0;
1486         char *buf;
1487         int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
1488         ssize_t ret;
1489         struct statistics_bt_activity *bt, *accum_bt;
1490
1491         if (!iwl_is_alive(priv))
1492                 return -EAGAIN;
1493
1494         if (!priv->bt_enable_flag)
1495                 return -EINVAL;
1496
1497         /* make request to uCode to retrieve statistics information */
1498         mutex_lock(&priv->mutex);
1499         ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
1500         mutex_unlock(&priv->mutex);
1501
1502         if (ret)
1503                 return -EAGAIN;
1504         buf = kzalloc(bufsz, GFP_KERNEL);
1505         if (!buf)
1506                 return -ENOMEM;
1507
1508         /*
1509          * the statistic information display here is based on
1510          * the last statistics notification from uCode
1511          * might not reflect the current uCode activity
1512          */
1513
1514         spin_lock_bh(&priv->statistics.lock);
1515
1516         bt = &priv->statistics.bt_activity;
1517         accum_bt = &priv->accum_stats.bt_activity;
1518
1519         pos += iwl_statistics_flag(priv, buf, bufsz);
1520         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
1521         pos += scnprintf(buf + pos, bufsz - pos,
1522                         "\t\t\tcurrent\t\t\taccumulative\n");
1523         pos += scnprintf(buf + pos, bufsz - pos,
1524                          "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1525                          le32_to_cpu(bt->hi_priority_tx_req_cnt),
1526                          accum_bt->hi_priority_tx_req_cnt);
1527         pos += scnprintf(buf + pos, bufsz - pos,
1528                          "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1529                          le32_to_cpu(bt->hi_priority_tx_denied_cnt),
1530                          accum_bt->hi_priority_tx_denied_cnt);
1531         pos += scnprintf(buf + pos, bufsz - pos,
1532                          "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1533                          le32_to_cpu(bt->lo_priority_tx_req_cnt),
1534                          accum_bt->lo_priority_tx_req_cnt);
1535         pos += scnprintf(buf + pos, bufsz - pos,
1536                          "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1537                          le32_to_cpu(bt->lo_priority_tx_denied_cnt),
1538                          accum_bt->lo_priority_tx_denied_cnt);
1539         pos += scnprintf(buf + pos, bufsz - pos,
1540                          "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1541                          le32_to_cpu(bt->hi_priority_rx_req_cnt),
1542                          accum_bt->hi_priority_rx_req_cnt);
1543         pos += scnprintf(buf + pos, bufsz - pos,
1544                          "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1545                          le32_to_cpu(bt->hi_priority_rx_denied_cnt),
1546                          accum_bt->hi_priority_rx_denied_cnt);
1547         pos += scnprintf(buf + pos, bufsz - pos,
1548                          "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1549                          le32_to_cpu(bt->lo_priority_rx_req_cnt),
1550                          accum_bt->lo_priority_rx_req_cnt);
1551         pos += scnprintf(buf + pos, bufsz - pos,
1552                          "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1553                          le32_to_cpu(bt->lo_priority_rx_denied_cnt),
1554                          accum_bt->lo_priority_rx_denied_cnt);
1555
1556         pos += scnprintf(buf + pos, bufsz - pos,
1557                          "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
1558                          le32_to_cpu(priv->statistics.num_bt_kills),
1559                          priv->statistics.accum_num_bt_kills);
1560
1561         spin_unlock_bh(&priv->statistics.lock);
1562
1563         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1564         kfree(buf);
1565         return ret;
1566 }
1567
1568 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1569                                         char __user *user_buf,
1570                                         size_t count, loff_t *ppos)
1571 {
1572         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1573         int pos = 0;
1574         char *buf;
1575         int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
1576                 (sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
1577         ssize_t ret;
1578
1579         if (!iwl_is_alive(priv))
1580                 return -EAGAIN;
1581
1582         buf = kzalloc(bufsz, GFP_KERNEL);
1583         if (!buf)
1584                 return -ENOMEM;
1585
1586         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
1587         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
1588                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1589                          priv->reply_tx_stats.pp_delay);
1590         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1591                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1592                          priv->reply_tx_stats.pp_few_bytes);
1593         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1594                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1595                          priv->reply_tx_stats.pp_bt_prio);
1596         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1597                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1598                          priv->reply_tx_stats.pp_quiet_period);
1599         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1600                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1601                          priv->reply_tx_stats.pp_calc_ttak);
1602         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1603                          iwl_get_tx_fail_reason(
1604                                 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1605                          priv->reply_tx_stats.int_crossed_retry);
1606         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1607                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1608                          priv->reply_tx_stats.short_limit);
1609         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1610                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1611                          priv->reply_tx_stats.long_limit);
1612         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1613                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1614                          priv->reply_tx_stats.fifo_underrun);
1615         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1616                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1617                          priv->reply_tx_stats.drain_flow);
1618         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1619                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1620                          priv->reply_tx_stats.rfkill_flush);
1621         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1622                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1623                          priv->reply_tx_stats.life_expire);
1624         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1625                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1626                          priv->reply_tx_stats.dest_ps);
1627         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1628                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1629                          priv->reply_tx_stats.host_abort);
1630         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1631                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1632                          priv->reply_tx_stats.pp_delay);
1633         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1634                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1635                          priv->reply_tx_stats.sta_invalid);
1636         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1637                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1638                          priv->reply_tx_stats.frag_drop);
1639         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1640                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1641                          priv->reply_tx_stats.tid_disable);
1642         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1643                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1644                          priv->reply_tx_stats.fifo_flush);
1645         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1646                          iwl_get_tx_fail_reason(
1647                                 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1648                          priv->reply_tx_stats.insuff_cf_poll);
1649         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1650                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1651                          priv->reply_tx_stats.fail_hw_drop);
1652         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1653                          iwl_get_tx_fail_reason(
1654                                 TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1655                          priv->reply_tx_stats.sta_color_mismatch);
1656         pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1657                          priv->reply_tx_stats.unknown);
1658
1659         pos += scnprintf(buf + pos, bufsz - pos,
1660                          "\nStatistics_Agg_TX_Error:\n");
1661
1662         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1663                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1664                          priv->reply_agg_tx_stats.underrun);
1665         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1666                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1667                          priv->reply_agg_tx_stats.bt_prio);
1668         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1669                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1670                          priv->reply_agg_tx_stats.few_bytes);
1671         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1672                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
1673                          priv->reply_agg_tx_stats.abort);
1674         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1675                          iwl_get_agg_tx_fail_reason(
1676                                 AGG_TX_STATE_LAST_SENT_TTL_MSK),
1677                          priv->reply_agg_tx_stats.last_sent_ttl);
1678         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1679                          iwl_get_agg_tx_fail_reason(
1680                                 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK),
1681                          priv->reply_agg_tx_stats.last_sent_try);
1682         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1683                          iwl_get_agg_tx_fail_reason(
1684                                 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
1685                          priv->reply_agg_tx_stats.last_sent_bt_kill);
1686         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1687                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
1688                          priv->reply_agg_tx_stats.scd_query);
1689         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1690                          iwl_get_agg_tx_fail_reason(
1691                                 AGG_TX_STATE_TEST_BAD_CRC32_MSK),
1692                          priv->reply_agg_tx_stats.bad_crc32);
1693         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1694                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
1695                          priv->reply_agg_tx_stats.response);
1696         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1697                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
1698                          priv->reply_agg_tx_stats.dump_tx);
1699         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1700                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
1701                          priv->reply_agg_tx_stats.delay_tx);
1702         pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1703                          priv->reply_agg_tx_stats.unknown);
1704
1705         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1706         kfree(buf);
1707         return ret;
1708 }
1709
1710 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1711                                         char __user *user_buf,
1712                                         size_t count, loff_t *ppos) {
1713
1714         struct iwl_priv *priv = file->private_data;
1715         int pos = 0;
1716         int cnt = 0;
1717         char *buf;
1718         int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1719         ssize_t ret;
1720         struct iwl_sensitivity_data *data;
1721
1722         data = &priv->sensitivity_data;
1723         buf = kzalloc(bufsz, GFP_KERNEL);
1724         if (!buf)
1725                 return -ENOMEM;
1726
1727         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1728                         data->auto_corr_ofdm);
1729         pos += scnprintf(buf + pos, bufsz - pos,
1730                         "auto_corr_ofdm_mrc:\t\t %u\n",
1731                         data->auto_corr_ofdm_mrc);
1732         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1733                         data->auto_corr_ofdm_x1);
1734         pos += scnprintf(buf + pos, bufsz - pos,
1735                         "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1736                         data->auto_corr_ofdm_mrc_x1);
1737         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1738                         data->auto_corr_cck);
1739         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1740                         data->auto_corr_cck_mrc);
1741         pos += scnprintf(buf + pos, bufsz - pos,
1742                         "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1743                         data->last_bad_plcp_cnt_ofdm);
1744         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1745                         data->last_fa_cnt_ofdm);
1746         pos += scnprintf(buf + pos, bufsz - pos,
1747                         "last_bad_plcp_cnt_cck:\t\t %u\n",
1748                         data->last_bad_plcp_cnt_cck);
1749         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1750                         data->last_fa_cnt_cck);
1751         pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1752                         data->nrg_curr_state);
1753         pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1754                         data->nrg_prev_state);
1755         pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1756         for (cnt = 0; cnt < 10; cnt++) {
1757                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1758                                 data->nrg_value[cnt]);
1759         }
1760         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1761         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1762         for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1763                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1764                                 data->nrg_silence_rssi[cnt]);
1765         }
1766         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1767         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1768                         data->nrg_silence_ref);
1769         pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1770                         data->nrg_energy_idx);
1771         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1772                         data->nrg_silence_idx);
1773         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1774                         data->nrg_th_cck);
1775         pos += scnprintf(buf + pos, bufsz - pos,
1776                         "nrg_auto_corr_silence_diff:\t %u\n",
1777                         data->nrg_auto_corr_silence_diff);
1778         pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1779                         data->num_in_cck_no_fa);
1780         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1781                         data->nrg_th_ofdm);
1782
1783         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1784         kfree(buf);
1785         return ret;
1786 }
1787
1788
1789 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1790                                         char __user *user_buf,
1791                                         size_t count, loff_t *ppos) {
1792
1793         struct iwl_priv *priv = file->private_data;
1794         int pos = 0;
1795         int cnt = 0;
1796         char *buf;
1797         int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1798         ssize_t ret;
1799         struct iwl_chain_noise_data *data;
1800
1801         data = &priv->chain_noise_data;
1802         buf = kzalloc(bufsz, GFP_KERNEL);
1803         if (!buf)
1804                 return -ENOMEM;
1805
1806         pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1807                         data->active_chains);
1808         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1809                         data->chain_noise_a);
1810         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1811                         data->chain_noise_b);
1812         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1813                         data->chain_noise_c);
1814         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1815                         data->chain_signal_a);
1816         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1817                         data->chain_signal_b);
1818         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1819                         data->chain_signal_c);
1820         pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1821                         data->beacon_count);
1822
1823         pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1824         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1825                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1826                                 data->disconn_array[cnt]);
1827         }
1828         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1829         pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1830         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1831                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1832                                 data->delta_gain_code[cnt]);
1833         }
1834         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1835         pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1836                         data->radio_write);
1837         pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1838                         data->state);
1839
1840         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1841         kfree(buf);
1842         return ret;
1843 }
1844
1845 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1846                                                     char __user *user_buf,
1847                                                     size_t count, loff_t *ppos)
1848 {
1849         struct iwl_priv *priv = file->private_data;
1850         char buf[60];
1851         int pos = 0;
1852         const size_t bufsz = sizeof(buf);
1853         u32 pwrsave_status;
1854
1855         pwrsave_status = iwl_read32(priv->trans, CSR_GP_CNTRL) &
1856                         CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1857
1858         pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1859         pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1860                 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1861                 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1862                 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1863                 "error");
1864
1865         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1866 }
1867
1868 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1869                                          const char __user *user_buf,
1870                                          size_t count, loff_t *ppos)
1871 {
1872         struct iwl_priv *priv = file->private_data;
1873         char buf[8];
1874         int buf_size;
1875         int clear;
1876
1877         memset(buf, 0, sizeof(buf));
1878         buf_size = min(count, sizeof(buf) -  1);
1879         if (copy_from_user(buf, user_buf, buf_size))
1880                 return -EFAULT;
1881         if (sscanf(buf, "%d", &clear) != 1)
1882                 return -EFAULT;
1883
1884         /* make request to uCode to retrieve statistics information */
1885         mutex_lock(&priv->mutex);
1886         iwl_send_statistics_request(priv, CMD_SYNC, true);
1887         mutex_unlock(&priv->mutex);
1888
1889         return count;
1890 }
1891
1892 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1893                                         char __user *user_buf,
1894                                         size_t count, loff_t *ppos) {
1895
1896         struct iwl_priv *priv = file->private_data;
1897         int pos = 0;
1898         char buf[128];
1899         const size_t bufsz = sizeof(buf);
1900
1901         pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1902                         priv->event_log.ucode_trace ? "On" : "Off");
1903         pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1904                         priv->event_log.non_wraps_count);
1905         pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1906                         priv->event_log.wraps_once_count);
1907         pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1908                         priv->event_log.wraps_more_count);
1909
1910         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1911 }
1912
1913 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1914                                          const char __user *user_buf,
1915                                          size_t count, loff_t *ppos)
1916 {
1917         struct iwl_priv *priv = file->private_data;
1918         char buf[8];
1919         int buf_size;
1920         int trace;
1921
1922         memset(buf, 0, sizeof(buf));
1923         buf_size = min(count, sizeof(buf) -  1);
1924         if (copy_from_user(buf, user_buf, buf_size))
1925                 return -EFAULT;
1926         if (sscanf(buf, "%d", &trace) != 1)
1927                 return -EFAULT;
1928
1929         if (trace) {
1930                 priv->event_log.ucode_trace = true;
1931                 if (iwl_is_alive(priv)) {
1932                         /* start collecting data now */
1933                         mod_timer(&priv->ucode_trace, jiffies);
1934                 }
1935         } else {
1936                 priv->event_log.ucode_trace = false;
1937                 del_timer_sync(&priv->ucode_trace);
1938         }
1939
1940         return count;
1941 }
1942
1943 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1944                                          char __user *user_buf,
1945                                          size_t count, loff_t *ppos) {
1946
1947         struct iwl_priv *priv = file->private_data;
1948         int len = 0;
1949         char buf[20];
1950
1951         len = sprintf(buf, "0x%04X\n",
1952                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1953         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1954 }
1955
1956 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1957                                                 char __user *user_buf,
1958                                                 size_t count, loff_t *ppos) {
1959
1960         struct iwl_priv *priv = file->private_data;
1961         int len = 0;
1962         char buf[20];
1963
1964         len = sprintf(buf, "0x%04X\n",
1965                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1966         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1967 }
1968
1969 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1970                                         char __user *user_buf,
1971                                         size_t count, loff_t *ppos) {
1972
1973         struct iwl_priv *priv = file->private_data;
1974         int pos = 0;
1975         char buf[12];
1976         const size_t bufsz = sizeof(buf);
1977
1978         pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1979                         priv->missed_beacon_threshold);
1980
1981         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1982 }
1983
1984 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1985                                          const char __user *user_buf,
1986                                          size_t count, loff_t *ppos)
1987 {
1988         struct iwl_priv *priv = file->private_data;
1989         char buf[8];
1990         int buf_size;
1991         int missed;
1992
1993         memset(buf, 0, sizeof(buf));
1994         buf_size = min(count, sizeof(buf) -  1);
1995         if (copy_from_user(buf, user_buf, buf_size))
1996                 return -EFAULT;
1997         if (sscanf(buf, "%d", &missed) != 1)
1998                 return -EINVAL;
1999
2000         if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
2001             missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
2002                 priv->missed_beacon_threshold =
2003                         IWL_MISSED_BEACON_THRESHOLD_DEF;
2004         else
2005                 priv->missed_beacon_threshold = missed;
2006
2007         return count;
2008 }
2009
2010 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
2011                                         char __user *user_buf,
2012                                         size_t count, loff_t *ppos) {
2013
2014         struct iwl_priv *priv = file->private_data;
2015         int pos = 0;
2016         char buf[12];
2017         const size_t bufsz = sizeof(buf);
2018
2019         pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
2020                         priv->plcp_delta_threshold);
2021
2022         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2023 }
2024
2025 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
2026                                         const char __user *user_buf,
2027                                         size_t count, loff_t *ppos) {
2028
2029         struct iwl_priv *priv = file->private_data;
2030         char buf[8];
2031         int buf_size;
2032         int plcp;
2033
2034         memset(buf, 0, sizeof(buf));
2035         buf_size = min(count, sizeof(buf) -  1);
2036         if (copy_from_user(buf, user_buf, buf_size))
2037                 return -EFAULT;
2038         if (sscanf(buf, "%d", &plcp) != 1)
2039                 return -EINVAL;
2040         if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
2041                 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
2042                 priv->plcp_delta_threshold =
2043                         IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
2044         else
2045                 priv->plcp_delta_threshold = plcp;
2046         return count;
2047 }
2048
2049 static ssize_t iwl_dbgfs_rf_reset_read(struct file *file,
2050                                        char __user *user_buf,
2051                                        size_t count, loff_t *ppos)
2052 {
2053         struct iwl_priv *priv = file->private_data;
2054         int pos = 0;
2055         char buf[300];
2056         const size_t bufsz = sizeof(buf);
2057         struct iwl_rf_reset *rf_reset = &priv->rf_reset;
2058
2059         pos += scnprintf(buf + pos, bufsz - pos,
2060                         "RF reset statistics\n");
2061         pos += scnprintf(buf + pos, bufsz - pos,
2062                         "\tnumber of reset request: %d\n",
2063                         rf_reset->reset_request_count);
2064         pos += scnprintf(buf + pos, bufsz - pos,
2065                         "\tnumber of reset request success: %d\n",
2066                         rf_reset->reset_success_count);
2067         pos += scnprintf(buf + pos, bufsz - pos,
2068                         "\tnumber of reset request reject: %d\n",
2069                         rf_reset->reset_reject_count);
2070
2071         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2072 }
2073
2074 static ssize_t iwl_dbgfs_rf_reset_write(struct file *file,
2075                                         const char __user *user_buf,
2076                                         size_t count, loff_t *ppos) {
2077
2078         struct iwl_priv *priv = file->private_data;
2079         int ret;
2080
2081         ret = iwl_force_rf_reset(priv, true);
2082         return ret ? ret : count;
2083 }
2084
2085 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
2086                                         const char __user *user_buf,
2087                                         size_t count, loff_t *ppos) {
2088
2089         struct iwl_priv *priv = file->private_data;
2090         char buf[8];
2091         int buf_size;
2092         int flush;
2093
2094         memset(buf, 0, sizeof(buf));
2095         buf_size = min(count, sizeof(buf) -  1);
2096         if (copy_from_user(buf, user_buf, buf_size))
2097                 return -EFAULT;
2098         if (sscanf(buf, "%d", &flush) != 1)
2099                 return -EINVAL;
2100
2101         if (iwl_is_rfkill(priv))
2102                 return -EFAULT;
2103
2104         iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
2105
2106         return count;
2107 }
2108
2109 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
2110                                         char __user *user_buf,
2111                                         size_t count, loff_t *ppos) {
2112
2113         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2114         int pos = 0;
2115         char buf[200];
2116         const size_t bufsz = sizeof(buf);
2117
2118         if (!priv->bt_enable_flag) {
2119                 pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2120                 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2121         }
2122         pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
2123                 priv->bt_enable_flag);
2124         pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
2125                 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
2126         pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
2127                          "last traffic notif: %d\n",
2128                 priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2129         pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2130                          "kill_ack_mask: %x, kill_cts_mask: %x\n",
2131                 priv->bt_ch_announce, priv->kill_ack_mask,
2132                 priv->kill_cts_mask);
2133
2134         pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
2135         switch (priv->bt_traffic_load) {
2136         case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
2137                 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
2138                 break;
2139         case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
2140                 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
2141                 break;
2142         case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
2143                 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
2144                 break;
2145         case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
2146         default:
2147                 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
2148                 break;
2149         }
2150
2151         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2152 }
2153
2154 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
2155                                         char __user *user_buf,
2156                                         size_t count, loff_t *ppos)
2157 {
2158         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2159
2160         int pos = 0;
2161         char buf[40];
2162         const size_t bufsz = sizeof(buf);
2163
2164         if (priv->cfg->ht_params)
2165                 pos += scnprintf(buf + pos, bufsz - pos,
2166                          "use %s for aggregation\n",
2167                          (priv->hw_params.use_rts_for_aggregation) ?
2168                                 "rts/cts" : "cts-to-self");
2169         else
2170                 pos += scnprintf(buf + pos, bufsz - pos, "N/A");
2171
2172         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2173 }
2174
2175 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
2176                                         const char __user *user_buf,
2177                                         size_t count, loff_t *ppos) {
2178
2179         struct iwl_priv *priv = file->private_data;
2180         char buf[8];
2181         int buf_size;
2182         int rts;
2183
2184         if (!priv->cfg->ht_params)
2185                 return -EINVAL;
2186
2187         memset(buf, 0, sizeof(buf));
2188         buf_size = min(count, sizeof(buf) -  1);
2189         if (copy_from_user(buf, user_buf, buf_size))
2190                 return -EFAULT;
2191         if (sscanf(buf, "%d", &rts) != 1)
2192                 return -EINVAL;
2193         if (rts)
2194                 priv->hw_params.use_rts_for_aggregation = true;
2195         else
2196                 priv->hw_params.use_rts_for_aggregation = false;
2197         return count;
2198 }
2199
2200 static int iwl_cmd_echo_test(struct iwl_priv *priv)
2201 {
2202         int ret;
2203         struct iwl_host_cmd cmd = {
2204                 .id = REPLY_ECHO,
2205                 .len = { 0 },
2206                 .flags = CMD_SYNC,
2207         };
2208
2209         ret = iwl_dvm_send_cmd(priv, &cmd);
2210         if (ret)
2211                 IWL_ERR(priv, "echo testing fail: 0X%x\n", ret);
2212         else
2213                 IWL_DEBUG_INFO(priv, "echo testing pass\n");
2214         return ret;
2215 }
2216
2217 static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
2218                                         const char __user *user_buf,
2219                                         size_t count, loff_t *ppos)
2220 {
2221         struct iwl_priv *priv = file->private_data;
2222         char buf[8];
2223         int buf_size;
2224
2225         memset(buf, 0, sizeof(buf));
2226         buf_size = min(count, sizeof(buf) -  1);
2227         if (copy_from_user(buf, user_buf, buf_size))
2228                 return -EFAULT;
2229
2230         iwl_cmd_echo_test(priv);
2231         return count;
2232 }
2233
2234 #ifdef CONFIG_IWLWIFI_DEBUG
2235 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
2236                                          char __user *user_buf,
2237                                          size_t count, loff_t *ppos)
2238 {
2239         struct iwl_priv *priv = file->private_data;
2240         char *buf;
2241         int pos = 0;
2242         ssize_t ret = -ENOMEM;
2243
2244         ret = pos = iwl_dump_nic_event_log(priv, true, &buf, true);
2245         if (buf) {
2246                 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2247                 kfree(buf);
2248         }
2249         return ret;
2250 }
2251
2252 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
2253                                         const char __user *user_buf,
2254                                         size_t count, loff_t *ppos)
2255 {
2256         struct iwl_priv *priv = file->private_data;
2257         u32 event_log_flag;
2258         char buf[8];
2259         int buf_size;
2260
2261         /* check that the interface is up */
2262         if (!iwl_is_ready(priv))
2263                 return -EAGAIN;
2264
2265         memset(buf, 0, sizeof(buf));
2266         buf_size = min(count, sizeof(buf) -  1);
2267         if (copy_from_user(buf, user_buf, buf_size))
2268                 return -EFAULT;
2269         if (sscanf(buf, "%d", &event_log_flag) != 1)
2270                 return -EFAULT;
2271         if (event_log_flag == 1)
2272                 iwl_dump_nic_event_log(priv, true, NULL, false);
2273
2274         return count;
2275 }
2276 #endif
2277
2278 static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file,
2279                                          char __user *user_buf,
2280                                          size_t count, loff_t *ppos)
2281 {
2282         struct iwl_priv *priv = file->private_data;
2283         char buf[120];
2284         int pos = 0;
2285         const size_t bufsz = sizeof(buf);
2286
2287         pos += scnprintf(buf + pos, bufsz - pos,
2288                          "Sensitivity calibrations %s\n",
2289                          (priv->calib_disabled &
2290                                         IWL_SENSITIVITY_CALIB_DISABLED) ?
2291                          "DISABLED" : "ENABLED");
2292         pos += scnprintf(buf + pos, bufsz - pos,
2293                          "Chain noise calibrations %s\n",
2294                          (priv->calib_disabled &
2295                                         IWL_CHAIN_NOISE_CALIB_DISABLED) ?
2296                          "DISABLED" : "ENABLED");
2297         pos += scnprintf(buf + pos, bufsz - pos,
2298                          "Tx power calibrations %s\n",
2299                          (priv->calib_disabled &
2300                                         IWL_TX_POWER_CALIB_DISABLED) ?
2301                          "DISABLED" : "ENABLED");
2302
2303         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2304 }
2305
2306 static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
2307                                               const char __user *user_buf,
2308                                               size_t count, loff_t *ppos)
2309 {
2310         struct iwl_priv *priv = file->private_data;
2311         char buf[8];
2312         u32 calib_disabled;
2313         int buf_size;
2314
2315         memset(buf, 0, sizeof(buf));
2316         buf_size = min(count, sizeof(buf) - 1);
2317         if (copy_from_user(buf, user_buf, buf_size))
2318                 return -EFAULT;
2319         if (sscanf(buf, "%x", &calib_disabled) != 1)
2320                 return -EFAULT;
2321
2322         priv->calib_disabled = calib_disabled;
2323
2324         return count;
2325 }
2326
2327 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2328 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2329 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2330 DEBUGFS_READ_FILE_OPS(sensitivity);
2331 DEBUGFS_READ_FILE_OPS(chain_noise);
2332 DEBUGFS_READ_FILE_OPS(power_save_status);
2333 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2334 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2335 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2336 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2337 DEBUGFS_READ_WRITE_FILE_OPS(rf_reset);
2338 DEBUGFS_READ_FILE_OPS(rxon_flags);
2339 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2340 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2341 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2342 DEBUGFS_READ_FILE_OPS(bt_traffic);
2343 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2344 DEBUGFS_READ_FILE_OPS(reply_tx_error);
2345 DEBUGFS_WRITE_FILE_OPS(echo_test);
2346 #ifdef CONFIG_IWLWIFI_DEBUG
2347 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
2348 #endif
2349 DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
2350
2351 /*
2352  * Create the debugfs files and directories
2353  *
2354  */
2355 int iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
2356 {
2357         struct dentry *dir_data, *dir_rf, *dir_debug;
2358
2359         priv->debugfs_dir = dbgfs_dir;
2360
2361         dir_data = debugfs_create_dir("data", dbgfs_dir);
2362         if (!dir_data)
2363                 goto err;
2364         dir_rf = debugfs_create_dir("rf", dbgfs_dir);
2365         if (!dir_rf)
2366                 goto err;
2367         dir_debug = debugfs_create_dir("debug", dbgfs_dir);
2368         if (!dir_debug)
2369                 goto err;
2370
2371         DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
2372         DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
2373         DEBUGFS_ADD_FILE(wowlan_sram, dir_data, S_IRUSR);
2374         DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
2375         DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
2376         DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
2377         DEBUGFS_ADD_FILE(rx_handlers, dir_data, S_IWUSR | S_IRUSR);
2378         DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
2379         DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
2380         DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
2381         DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
2382         DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
2383         DEBUGFS_ADD_FILE(temperature, dir_data, S_IRUSR);
2384
2385         DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
2386         DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
2387         DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
2388         DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
2389         DEBUGFS_ADD_FILE(rf_reset, dir_debug, S_IWUSR | S_IRUSR);
2390         DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
2391         DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
2392         DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
2393         DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
2394         DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
2395         DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
2396         DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
2397         DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
2398         DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
2399         DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
2400         DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
2401         DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
2402         DEBUGFS_ADD_FILE(echo_test, dir_debug, S_IWUSR);
2403 #ifdef CONFIG_IWLWIFI_DEBUG
2404         DEBUGFS_ADD_FILE(log_event, dir_debug, S_IWUSR | S_IRUSR);
2405 #endif
2406
2407         if (iwl_advanced_bt_coexist(priv))
2408                 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
2409
2410         /* Calibrations disabled/enabled status*/
2411         DEBUGFS_ADD_FILE(calib_disabled, dir_rf, S_IWUSR | S_IRUSR);
2412
2413         /*
2414          * Create a symlink with mac80211. This is not very robust, as it does
2415          * not remove the symlink created. The implicit assumption is that
2416          * when the opmode exits, mac80211 will also exit, and will remove
2417          * this symlink as part of its cleanup.
2418          */
2419         if (priv->mac80211_registered) {
2420                 char buf[100];
2421                 struct dentry *mac80211_dir, *dev_dir, *root_dir;
2422
2423                 dev_dir = dbgfs_dir->d_parent;
2424                 root_dir = dev_dir->d_parent;
2425                 mac80211_dir = priv->hw->wiphy->debugfsdir;
2426
2427                 snprintf(buf, 100, "../../%s/%s", root_dir->d_name.name,
2428                          dev_dir->d_name.name);
2429
2430                 if (!debugfs_create_symlink("iwlwifi", mac80211_dir, buf))
2431                         goto err;
2432         }
2433
2434         return 0;
2435
2436 err:
2437         IWL_ERR(priv, "failed to create the dvm debugfs entries\n");
2438         return -ENOMEM;
2439 }