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

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /******************************************************************************
   3  *
   4  * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
   5  * Copyright (C) 2018 Intel Corporation
   6  *****************************************************************************/
   7
   8 #include <linux/slab.h>
   9 #include <linux/kernel.h>
  10 #include <linux/module.h>
  11 #include <linux/debugfs.h>
  12 #include <linux/ieee80211.h>
  13 #include <net/mac80211.h>
  14
  15 #include "iwl-debug.h"
  16 #include "iwl-trans.h"
  17 #include "iwl-io.h"
  18 #include "dev.h"
  19 #include "agn.h"
  20
  21 /* create and remove of files */
  22 #define DEBUGFS_ADD_FILE(name, parent, mode) do {                       \
  23         debugfs_create_file(#name, mode, parent, priv,                  \
  24                             &iwl_dbgfs_##name##_ops);                   \
  25 } while (0)
  26
  27 /* file operation */
  28 #define DEBUGFS_READ_FILE_OPS(name)                                     \
  29 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  30         .read = iwl_dbgfs_##name##_read,                                \
  31         .open = simple_open,                                            \
  32         .llseek = generic_file_llseek,                                  \
  33 };
  34
  35 #define DEBUGFS_WRITE_FILE_OPS(name)                                    \
  36 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  37         .write = iwl_dbgfs_##name##_write,                              \
  38         .open = simple_open,                                            \
  39         .llseek = generic_file_llseek,                                  \
  40 };
  41
  42
  43 #define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
  44 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  45         .write = iwl_dbgfs_##name##_write,                              \
  46         .read = iwl_dbgfs_##name##_read,                                \
  47         .open = simple_open,                                            \
  48         .llseek = generic_file_llseek,                                  \
  49 };
  50
  51 static ssize_t iwl_dbgfs_sram_read(struct file *file,
  52                                         char __user *user_buf,
  53                                         size_t count, loff_t *ppos)
  54 {
  55         u32 val = 0;
  56         char *buf;
  57         ssize_t ret;
  58         int i = 0;
  59         bool device_format = false;
  60         int offset = 0;
  61         int len = 0;
  62         int pos = 0;
  63         int sram;
  64         struct iwl_priv *priv = file->private_data;
  65         const struct fw_img *img;
  66         size_t bufsz;
  67
  68         if (!iwl_is_ready_rf(priv))
  69                 return -EAGAIN;
  70
  71         /* default is to dump the entire data segment */
  72         if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
  73                 priv->dbgfs_sram_offset = 0x800000;
  74                 if (!priv->ucode_loaded)
  75                         return -EINVAL;
  76                 img = &priv->fw->img[priv->cur_ucode];
  77                 priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
  78         }
  79         len = priv->dbgfs_sram_len;
  80
  81         if (len == -4) {
  82                 device_format = true;
  83                 len = 4;
  84         }
  85
  86         bufsz =  50 + len * 4;
  87         buf = kmalloc(bufsz, GFP_KERNEL);
  88         if (!buf)
  89                 return -ENOMEM;
  90
  91         pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
  92                          len);
  93         pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
  94                         priv->dbgfs_sram_offset);
  95
  96         /* adjust sram address since reads are only on even u32 boundaries */
  97         offset = priv->dbgfs_sram_offset & 0x3;
  98         sram = priv->dbgfs_sram_offset & ~0x3;
  99
 100         /* read the first u32 from sram */
 101         val = iwl_trans_read_mem32(priv->trans, sram);
 102
 103         for (; len; len--) {
 104                 /* put the address at the start of every line */
 105                 if (i == 0)
 106                         pos += scnprintf(buf + pos, bufsz - pos,
 107                                 "%08X: ", sram + offset);
 108
 109                 if (device_format)
 110                         pos += scnprintf(buf + pos, bufsz - pos,
 111                                 "%02x", (val >> (8 * (3 - offset))) & 0xff);
 112                 else
 113                         pos += scnprintf(buf + pos, bufsz - pos,
 114                                 "%02x ", (val >> (8 * offset)) & 0xff);
 115
 116                 /* if all bytes processed, read the next u32 from sram */
 117                 if (++offset == 4) {
 118                         sram += 4;
 119                         offset = 0;
 120                         val = iwl_trans_read_mem32(priv->trans, sram);
 121                 }
 122
 123                 /* put in extra spaces and split lines for human readability */
 124                 if (++i == 16) {
 125                         i = 0;
 126                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 127                 } else if (!(i & 7)) {
 128                         pos += scnprintf(buf + pos, bufsz - pos, "   ");
 129                 } else if (!(i & 3)) {
 130                         pos += scnprintf(buf + pos, bufsz - pos, " ");
 131                 }
 132         }
 133         if (i)
 134                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 135
 136         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 137         kfree(buf);
 138         return ret;
 139 }
 140
 141 static ssize_t iwl_dbgfs_sram_write(struct file *file,
 142                                         const char __user *user_buf,
 143                                         size_t count, loff_t *ppos)
 144 {
 145         struct iwl_priv *priv = file->private_data;
 146         char buf[64];
 147         int buf_size;
 148         u32 offset, len;
 149
 150         memset(buf, 0, sizeof(buf));
 151         buf_size = min(count, sizeof(buf) -  1);
 152         if (copy_from_user(buf, user_buf, buf_size))
 153                 return -EFAULT;
 154
 155         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 156                 priv->dbgfs_sram_offset = offset;
 157                 priv->dbgfs_sram_len = len;
 158         } else if (sscanf(buf, "%x", &offset) == 1) {
 159                 priv->dbgfs_sram_offset = offset;
 160                 priv->dbgfs_sram_len = -4;
 161         } else {
 162                 priv->dbgfs_sram_offset = 0;
 163                 priv->dbgfs_sram_len = 0;
 164         }
 165
 166         return count;
 167 }
 168
 169 static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
 170                                           char __user *user_buf,
 171                                           size_t count, loff_t *ppos)
 172 {
 173         struct iwl_priv *priv = file->private_data;
 174         const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN];
 175
 176         if (!priv->wowlan_sram)
 177                 return -ENODATA;
 178
 179         return simple_read_from_buffer(user_buf, count, ppos,
 180                                        priv->wowlan_sram,
 181                                        img->sec[IWL_UCODE_SECTION_DATA].len);
 182 }
 183 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 184                                         size_t count, loff_t *ppos)
 185 {
 186         struct iwl_priv *priv = file->private_data;
 187         struct iwl_station_entry *station;
 188         struct iwl_tid_data *tid_data;
 189         char *buf;
 190         int i, j, pos = 0;
 191         ssize_t ret;
 192         /* Add 30 for initial string */
 193         const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
 194
 195         buf = kmalloc(bufsz, GFP_KERNEL);
 196         if (!buf)
 197                 return -ENOMEM;
 198
 199         pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
 200                         priv->num_stations);
 201
 202         for (i = 0; i < IWLAGN_STATION_COUNT; i++) {
 203                 station = &priv->stations[i];
 204                 if (!station->used)
 205                         continue;
 206                 pos += scnprintf(buf + pos, bufsz - pos,
 207                                  "station %d - addr: %pM, flags: %#x\n",
 208                                  i, station->sta.sta.addr,
 209                                  station->sta.station_flags_msk);
 210                 pos += scnprintf(buf + pos, bufsz - pos,
 211                                 "TID seqno  next_rclmd "
 212                                 "rate_n_flags state txq\n");
 213
 214                 for (j = 0; j < IWL_MAX_TID_COUNT; j++) {
 215                         tid_data = &priv->tid_data[i][j];
 216                         pos += scnprintf(buf + pos, bufsz - pos,
 217                                 "%d:  0x%.4x 0x%.4x     0x%.8x   "
 218                                 "%d     %.2d",
 219                                 j, tid_data->seq_number,
 220                                 tid_data->next_reclaimed,
 221                                 tid_data->agg.rate_n_flags,
 222                                 tid_data->agg.state,
 223                                 tid_data->agg.txq_id);
 224
 225                         if (tid_data->agg.wait_for_ba)
 226                                 pos += scnprintf(buf + pos, bufsz - pos,
 227                                                  " - waitforba");
 228                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 229                 }
 230
 231                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 232         }
 233
 234         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 235         kfree(buf);
 236         return ret;
 237 }
 238
 239 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
 240                                        char __user *user_buf,
 241                                        size_t count,
 242                                        loff_t *ppos)
 243 {
 244         ssize_t ret;
 245         struct iwl_priv *priv = file->private_data;
 246         int pos = 0, ofs = 0, buf_size = 0;
 247         const u8 *ptr;
 248         char *buf;
 249         u16 nvm_ver;
 250         size_t eeprom_len = priv->eeprom_blob_size;
 251         buf_size = 4 * eeprom_len + 256;
 252
 253         if (eeprom_len % 16)
 254                 return -ENODATA;
 255
 256         ptr = priv->eeprom_blob;
 257         if (!ptr)
 258                 return -ENOMEM;
 259
 260         /* 4 characters for byte 0xYY */
 261         buf = kzalloc(buf_size, GFP_KERNEL);
 262         if (!buf)
 263                 return -ENOMEM;
 264
 265         nvm_ver = priv->nvm_data->nvm_version;
 266         pos += scnprintf(buf + pos, buf_size - pos,
 267                          "NVM version: 0x%x\n", nvm_ver);
 268         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
 269                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x %16ph\n",
 270                                  ofs, ptr + ofs);
 271         }
 272
 273         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 274         kfree(buf);
 275         return ret;
 276 }
 277
 278 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 279                                        size_t count, loff_t *ppos)
 280 {
 281         struct iwl_priv *priv = file->private_data;
 282         struct ieee80211_channel *channels = NULL;
 283         const struct ieee80211_supported_band *supp_band = NULL;
 284         int pos = 0, i, bufsz = PAGE_SIZE;
 285         char *buf;
 286         ssize_t ret;
 287
 288         buf = kzalloc(bufsz, GFP_KERNEL);
 289         if (!buf)
 290                 return -ENOMEM;
 291
 292         supp_band = iwl_get_hw_mode(priv, NL80211_BAND_2GHZ);
 293         if (supp_band) {
 294                 channels = supp_band->channels;
 295
 296                 pos += scnprintf(buf + pos, bufsz - pos,
 297                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
 298                                 supp_band->n_channels);
 299
 300                 for (i = 0; i < supp_band->n_channels; i++)
 301                         pos += scnprintf(buf + pos, bufsz - pos,
 302                                         "%d: %ddBm: BSS%s%s, %s.\n",
 303                                         channels[i].hw_value,
 304                                         channels[i].max_power,
 305                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 306                                         " (IEEE 802.11h required)" : "",
 307                                         ((channels[i].flags & IEEE80211_CHAN_NO_IR)
 308                                         || (channels[i].flags &
 309                                         IEEE80211_CHAN_RADAR)) ? "" :
 310                                         ", IBSS",
 311                                         channels[i].flags &
 312                                         IEEE80211_CHAN_NO_IR ?
 313                                         "passive only" : "active/passive");
 314         }
 315         supp_band = iwl_get_hw_mode(priv, NL80211_BAND_5GHZ);
 316         if (supp_band) {
 317                 channels = supp_band->channels;
 318
 319                 pos += scnprintf(buf + pos, bufsz - pos,
 320                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
 321                                 supp_band->n_channels);
 322
 323                 for (i = 0; i < supp_band->n_channels; i++)
 324                         pos += scnprintf(buf + pos, bufsz - pos,
 325                                         "%d: %ddBm: BSS%s%s, %s.\n",
 326                                         channels[i].hw_value,
 327                                         channels[i].max_power,
 328                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 329                                         " (IEEE 802.11h required)" : "",
 330                                         ((channels[i].flags & IEEE80211_CHAN_NO_IR)
 331                                         || (channels[i].flags &
 332                                         IEEE80211_CHAN_RADAR)) ? "" :
 333                                         ", IBSS",
 334                                         channels[i].flags &
 335                                         IEEE80211_CHAN_NO_IR ?
 336                                         "passive only" : "active/passive");
 337         }
 338         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 339         kfree(buf);
 340         return ret;
 341 }
 342
 343 static ssize_t iwl_dbgfs_status_read(struct file *file,
 344                                                 char __user *user_buf,
 345                                                 size_t count, loff_t *ppos) {
 346
 347         struct iwl_priv *priv = file->private_data;
 348         char buf[512];
 349         int pos = 0;
 350         const size_t bufsz = sizeof(buf);
 351
 352         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 353                 test_bit(STATUS_RF_KILL_HW, &priv->status));
 354         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 355                 test_bit(STATUS_CT_KILL, &priv->status));
 356         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 357                 test_bit(STATUS_ALIVE, &priv->status));
 358         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 359                 test_bit(STATUS_READY, &priv->status));
 360         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 361                 test_bit(STATUS_EXIT_PENDING, &priv->status));
 362         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 363                 test_bit(STATUS_STATISTICS, &priv->status));
 364         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 365                 test_bit(STATUS_SCANNING, &priv->status));
 366         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 367                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
 368         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 369                 test_bit(STATUS_SCAN_HW, &priv->status));
 370         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 371                 test_bit(STATUS_POWER_PMI, &priv->status));
 372         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 373                 test_bit(STATUS_FW_ERROR, &priv->status));
 374         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 375 }
 376
 377 static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file,
 378                                         char __user *user_buf,
 379                                         size_t count, loff_t *ppos) {
 380
 381         struct iwl_priv *priv = file->private_data;
 382
 383         int pos = 0;
 384         int cnt = 0;
 385         char *buf;
 386         int bufsz = 24 * 64; /* 24 items * 64 char per item */
 387         ssize_t ret;
 388
 389         buf = kzalloc(bufsz, GFP_KERNEL);
 390         if (!buf)
 391                 return -ENOMEM;
 392
 393         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 394                 if (priv->rx_handlers_stats[cnt] > 0)
 395                         pos += scnprintf(buf + pos, bufsz - pos,
 396                                 "\tRx handler[%36s]:\t\t %u\n",
 397                                 iwl_get_cmd_string(priv->trans, (u32)cnt),
 398                                 priv->rx_handlers_stats[cnt]);
 399         }
 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_rx_handlers_write(struct file *file,
 407                                          const char __user *user_buf,
 408                                          size_t count, loff_t *ppos)
 409 {
 410         struct iwl_priv *priv = file->private_data;
 411
 412         char buf[8];
 413         int buf_size;
 414         u32 reset_flag;
 415
 416         memset(buf, 0, sizeof(buf));
 417         buf_size = min(count, sizeof(buf) -  1);
 418         if (copy_from_user(buf, user_buf, buf_size))
 419                 return -EFAULT;
 420         if (sscanf(buf, "%x", &reset_flag) != 1)
 421                 return -EFAULT;
 422         if (reset_flag == 0)
 423                 memset(&priv->rx_handlers_stats[0], 0,
 424                         sizeof(priv->rx_handlers_stats));
 425
 426         return count;
 427 }
 428
 429 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 430                                        size_t count, loff_t *ppos)
 431 {
 432         struct iwl_priv *priv = file->private_data;
 433         struct iwl_rxon_context *ctx;
 434         int pos = 0, i;
 435         char buf[256 * NUM_IWL_RXON_CTX];
 436         const size_t bufsz = sizeof(buf);
 437
 438         for_each_context(priv, ctx) {
 439                 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
 440                                  ctx->ctxid);
 441                 for (i = 0; i < AC_NUM; i++) {
 442                         pos += scnprintf(buf + pos, bufsz - pos,
 443                                 "\tcw_min\tcw_max\taifsn\ttxop\n");
 444                         pos += scnprintf(buf + pos, bufsz - pos,
 445                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
 446                                 ctx->qos_data.def_qos_parm.ac[i].cw_min,
 447                                 ctx->qos_data.def_qos_parm.ac[i].cw_max,
 448                                 ctx->qos_data.def_qos_parm.ac[i].aifsn,
 449                                 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
 450                 }
 451                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 452         }
 453         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 454 }
 455
 456 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 457                                 char __user *user_buf,
 458                                 size_t count, loff_t *ppos)
 459 {
 460         struct iwl_priv *priv = file->private_data;
 461         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 462         struct iwl_tt_restriction *restriction;
 463         char buf[100];
 464         int pos = 0;
 465         const size_t bufsz = sizeof(buf);
 466
 467         pos += scnprintf(buf + pos, bufsz - pos,
 468                         "Thermal Throttling Mode: %s\n",
 469                         tt->advanced_tt ? "Advance" : "Legacy");
 470         pos += scnprintf(buf + pos, bufsz - pos,
 471                         "Thermal Throttling State: %d\n",
 472                         tt->state);
 473         if (tt->advanced_tt) {
 474                 restriction = tt->restriction + tt->state;
 475                 pos += scnprintf(buf + pos, bufsz - pos,
 476                                 "Tx mode: %d\n",
 477                                 restriction->tx_stream);
 478                 pos += scnprintf(buf + pos, bufsz - pos,
 479                                 "Rx mode: %d\n",
 480                                 restriction->rx_stream);
 481                 pos += scnprintf(buf + pos, bufsz - pos,
 482                                 "HT mode: %d\n",
 483                                 restriction->is_ht);
 484         }
 485         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 486 }
 487
 488 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 489                                          const char __user *user_buf,
 490                                          size_t count, loff_t *ppos)
 491 {
 492         struct iwl_priv *priv = file->private_data;
 493         char buf[8];
 494         int buf_size;
 495         int ht40;
 496
 497         memset(buf, 0, sizeof(buf));
 498         buf_size = min(count, sizeof(buf) -  1);
 499         if (copy_from_user(buf, user_buf, buf_size))
 500                 return -EFAULT;
 501         if (sscanf(buf, "%d", &ht40) != 1)
 502                 return -EFAULT;
 503         if (!iwl_is_any_associated(priv))
 504                 priv->disable_ht40 = ht40 ? true : false;
 505         else
 506                 return -EINVAL;
 507
 508         return count;
 509 }
 510
 511 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 512                                          char __user *user_buf,
 513                                          size_t count, loff_t *ppos)
 514 {
 515         struct iwl_priv *priv = file->private_data;
 516         char buf[100];
 517         int pos = 0;
 518         const size_t bufsz = sizeof(buf);
 519
 520         pos += scnprintf(buf + pos, bufsz - pos,
 521                         "11n 40MHz Mode: %s\n",
 522                         priv->disable_ht40 ? "Disabled" : "Enabled");
 523         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 524 }
 525
 526 static ssize_t iwl_dbgfs_temperature_read(struct file *file,
 527                                          char __user *user_buf,
 528                                          size_t count, loff_t *ppos)
 529 {
 530         struct iwl_priv *priv = file->private_data;
 531         char buf[8];
 532         int pos = 0;
 533         const size_t bufsz = sizeof(buf);
 534
 535         pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->temperature);
 536         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 537 }
 538
 539
 540 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 541                                                     const char __user *user_buf,
 542                                                     size_t count, loff_t *ppos)
 543 {
 544         struct iwl_priv *priv = file->private_data;
 545         char buf[8];
 546         int buf_size;
 547         int value;
 548
 549         memset(buf, 0, sizeof(buf));
 550         buf_size = min(count, sizeof(buf) -  1);
 551         if (copy_from_user(buf, user_buf, buf_size))
 552                 return -EFAULT;
 553
 554         if (sscanf(buf, "%d", &value) != 1)
 555                 return -EINVAL;
 556
 557         /*
 558          * Our users expect 0 to be "CAM", but 0 isn't actually
 559          * valid here. However, let's not confuse them and present
 560          * IWL_POWER_INDEX_1 as "1", not "0".
 561          */
 562         if (value == 0)
 563                 return -EINVAL;
 564         else if (value > 0)
 565                 value -= 1;
 566
 567         if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 568                 return -EINVAL;
 569
 570         if (!iwl_is_ready_rf(priv))
 571                 return -EAGAIN;
 572
 573         priv->power_data.debug_sleep_level_override = value;
 574
 575         mutex_lock(&priv->mutex);
 576         iwl_power_update_mode(priv, true);
 577         mutex_unlock(&priv->mutex);
 578
 579         return count;
 580 }
 581
 582 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 583                                                    char __user *user_buf,
 584                                                    size_t count, loff_t *ppos)
 585 {
 586         struct iwl_priv *priv = file->private_data;
 587         char buf[10];
 588         int pos, value;
 589         const size_t bufsz = sizeof(buf);
 590
 591         /* see the write function */
 592         value = priv->power_data.debug_sleep_level_override;
 593         if (value >= 0)
 594                 value += 1;
 595
 596         pos = scnprintf(buf, bufsz, "%d\n", value);
 597         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 598 }
 599
 600 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 601                                                     char __user *user_buf,
 602                                                     size_t count, loff_t *ppos)
 603 {
 604         struct iwl_priv *priv = file->private_data;
 605         char buf[200];
 606         int pos = 0, i;
 607         const size_t bufsz = sizeof(buf);
 608         struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 609
 610         pos += scnprintf(buf + pos, bufsz - pos,
 611                          "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 612         pos += scnprintf(buf + pos, bufsz - pos,
 613                          "RX/TX timeout: %d/%d usec\n",
 614                          le32_to_cpu(cmd->rx_data_timeout),
 615                          le32_to_cpu(cmd->tx_data_timeout));
 616         for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 617                 pos += scnprintf(buf + pos, bufsz - pos,
 618                                  "sleep_interval[%d]: %d\n", i,
 619                                  le32_to_cpu(cmd->sleep_interval[i]));
 620
 621         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 622 }
 623
 624 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 625 DEBUGFS_READ_FILE_OPS(wowlan_sram);
 626 DEBUGFS_READ_FILE_OPS(nvm);
 627 DEBUGFS_READ_FILE_OPS(stations);
 628 DEBUGFS_READ_FILE_OPS(channels);
 629 DEBUGFS_READ_FILE_OPS(status);
 630 DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers);
 631 DEBUGFS_READ_FILE_OPS(qos);
 632 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 633 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 634 DEBUGFS_READ_FILE_OPS(temperature);
 635 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 636 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 637
 638 #define fmt_value       "  %-30s %10u\n"
 639 #define fmt_hex         "  %-30s       0x%02X\n"
 640 #define fmt_table       "  %-30s %10u  %10u  %10u  %10u\n"
 641 #define fmt_header      "%-32s    current  cumulative       delta         max\n"
 642
 643 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
 644 {
 645         int p = 0;
 646         u32 flag;
 647
 648         lockdep_assert_held(&priv->statistics.lock);
 649
 650         flag = le32_to_cpu(priv->statistics.flag);
 651
 652         p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
 653         if (flag & UCODE_STATISTICS_CLEAR_MSK)
 654                 p += scnprintf(buf + p, bufsz - p,
 655                 "\tStatistics have been cleared\n");
 656         p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
 657                 (flag & UCODE_STATISTICS_FREQUENCY_MSK)
 658                 ? "2.4 GHz" : "5.2 GHz");
 659         p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
 660                 (flag & UCODE_STATISTICS_NARROW_BAND_MSK)
 661                  ? "enabled" : "disabled");
 662
 663         return p;
 664 }
 665
 666 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
 667                                         char __user *user_buf,
 668                                         size_t count, loff_t *ppos)
 669 {
 670         struct iwl_priv *priv = file->private_data;
 671         int pos = 0;
 672         char *buf;
 673         int bufsz = sizeof(struct statistics_rx_phy) * 40 +
 674                     sizeof(struct statistics_rx_non_phy) * 40 +
 675                     sizeof(struct statistics_rx_ht_phy) * 40 + 400;
 676         ssize_t ret;
 677         struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
 678         struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
 679         struct statistics_rx_non_phy *general, *accum_general;
 680         struct statistics_rx_non_phy *delta_general, *max_general;
 681         struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
 682
 683         if (!iwl_is_alive(priv))
 684                 return -EAGAIN;
 685
 686         buf = kzalloc(bufsz, GFP_KERNEL);
 687         if (!buf)
 688                 return -ENOMEM;
 689
 690         /*
 691          * the statistic information display here is based on
 692          * the last statistics notification from uCode
 693          * might not reflect the current uCode activity
 694          */
 695         spin_lock_bh(&priv->statistics.lock);
 696         ofdm = &priv->statistics.rx_ofdm;
 697         cck = &priv->statistics.rx_cck;
 698         general = &priv->statistics.rx_non_phy;
 699         ht = &priv->statistics.rx_ofdm_ht;
 700         accum_ofdm = &priv->accum_stats.rx_ofdm;
 701         accum_cck = &priv->accum_stats.rx_cck;
 702         accum_general = &priv->accum_stats.rx_non_phy;
 703         accum_ht = &priv->accum_stats.rx_ofdm_ht;
 704         delta_ofdm = &priv->delta_stats.rx_ofdm;
 705         delta_cck = &priv->delta_stats.rx_cck;
 706         delta_general = &priv->delta_stats.rx_non_phy;
 707         delta_ht = &priv->delta_stats.rx_ofdm_ht;
 708         max_ofdm = &priv->max_delta_stats.rx_ofdm;
 709         max_cck = &priv->max_delta_stats.rx_cck;
 710         max_general = &priv->max_delta_stats.rx_non_phy;
 711         max_ht = &priv->max_delta_stats.rx_ofdm_ht;
 712
 713         pos += iwl_statistics_flag(priv, buf, bufsz);
 714         pos += scnprintf(buf + pos, bufsz - pos,
 715                          fmt_header, "Statistics_Rx - OFDM:");
 716         pos += scnprintf(buf + pos, bufsz - pos,
 717                          fmt_table, "ina_cnt:",
 718                          le32_to_cpu(ofdm->ina_cnt),
 719                          accum_ofdm->ina_cnt,
 720                          delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
 721         pos += scnprintf(buf + pos, bufsz - pos,
 722                          fmt_table, "fina_cnt:",
 723                          le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
 724                          delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
 725         pos += scnprintf(buf + pos, bufsz - pos,
 726                          fmt_table, "plcp_err:",
 727                          le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
 728                          delta_ofdm->plcp_err, max_ofdm->plcp_err);
 729         pos += scnprintf(buf + pos, bufsz - pos,
 730                          fmt_table, "crc32_err:",
 731                          le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
 732                          delta_ofdm->crc32_err, max_ofdm->crc32_err);
 733         pos += scnprintf(buf + pos, bufsz - pos,
 734                          fmt_table, "overrun_err:",
 735                          le32_to_cpu(ofdm->overrun_err),
 736                          accum_ofdm->overrun_err, delta_ofdm->overrun_err,
 737                          max_ofdm->overrun_err);
 738         pos += scnprintf(buf + pos, bufsz - pos,
 739                          fmt_table, "early_overrun_err:",
 740                          le32_to_cpu(ofdm->early_overrun_err),
 741                          accum_ofdm->early_overrun_err,
 742                          delta_ofdm->early_overrun_err,
 743                          max_ofdm->early_overrun_err);
 744         pos += scnprintf(buf + pos, bufsz - pos,
 745                          fmt_table, "crc32_good:",
 746                          le32_to_cpu(ofdm->crc32_good),
 747                          accum_ofdm->crc32_good, delta_ofdm->crc32_good,
 748                          max_ofdm->crc32_good);
 749         pos += scnprintf(buf + pos, bufsz - pos,
 750                          fmt_table, "false_alarm_cnt:",
 751                          le32_to_cpu(ofdm->false_alarm_cnt),
 752                          accum_ofdm->false_alarm_cnt,
 753                          delta_ofdm->false_alarm_cnt,
 754                          max_ofdm->false_alarm_cnt);
 755         pos += scnprintf(buf + pos, bufsz - pos,
 756                          fmt_table, "fina_sync_err_cnt:",
 757                          le32_to_cpu(ofdm->fina_sync_err_cnt),
 758                          accum_ofdm->fina_sync_err_cnt,
 759                          delta_ofdm->fina_sync_err_cnt,
 760                          max_ofdm->fina_sync_err_cnt);
 761         pos += scnprintf(buf + pos, bufsz - pos,
 762                          fmt_table, "sfd_timeout:",
 763                          le32_to_cpu(ofdm->sfd_timeout),
 764                          accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
 765                          max_ofdm->sfd_timeout);
 766         pos += scnprintf(buf + pos, bufsz - pos,
 767                          fmt_table, "fina_timeout:",
 768                          le32_to_cpu(ofdm->fina_timeout),
 769                          accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
 770                          max_ofdm->fina_timeout);
 771         pos += scnprintf(buf + pos, bufsz - pos,
 772                          fmt_table, "unresponded_rts:",
 773                          le32_to_cpu(ofdm->unresponded_rts),
 774                          accum_ofdm->unresponded_rts,
 775                          delta_ofdm->unresponded_rts,
 776                          max_ofdm->unresponded_rts);
 777         pos += scnprintf(buf + pos, bufsz - pos,
 778                          fmt_table, "rxe_frame_lmt_ovrun:",
 779                          le32_to_cpu(ofdm->rxe_frame_limit_overrun),
 780                          accum_ofdm->rxe_frame_limit_overrun,
 781                          delta_ofdm->rxe_frame_limit_overrun,
 782                          max_ofdm->rxe_frame_limit_overrun);
 783         pos += scnprintf(buf + pos, bufsz - pos,
 784                          fmt_table, "sent_ack_cnt:",
 785                          le32_to_cpu(ofdm->sent_ack_cnt),
 786                          accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
 787                          max_ofdm->sent_ack_cnt);
 788         pos += scnprintf(buf + pos, bufsz - pos,
 789                          fmt_table, "sent_cts_cnt:",
 790                          le32_to_cpu(ofdm->sent_cts_cnt),
 791                          accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
 792                          max_ofdm->sent_cts_cnt);
 793         pos += scnprintf(buf + pos, bufsz - pos,
 794                          fmt_table, "sent_ba_rsp_cnt:",
 795                          le32_to_cpu(ofdm->sent_ba_rsp_cnt),
 796                          accum_ofdm->sent_ba_rsp_cnt,
 797                          delta_ofdm->sent_ba_rsp_cnt,
 798                          max_ofdm->sent_ba_rsp_cnt);
 799         pos += scnprintf(buf + pos, bufsz - pos,
 800                          fmt_table, "dsp_self_kill:",
 801                          le32_to_cpu(ofdm->dsp_self_kill),
 802                          accum_ofdm->dsp_self_kill,
 803                          delta_ofdm->dsp_self_kill,
 804                          max_ofdm->dsp_self_kill);
 805         pos += scnprintf(buf + pos, bufsz - pos,
 806                          fmt_table, "mh_format_err:",
 807                          le32_to_cpu(ofdm->mh_format_err),
 808                          accum_ofdm->mh_format_err,
 809                          delta_ofdm->mh_format_err,
 810                          max_ofdm->mh_format_err);
 811         pos += scnprintf(buf + pos, bufsz - pos,
 812                          fmt_table, "re_acq_main_rssi_sum:",
 813                          le32_to_cpu(ofdm->re_acq_main_rssi_sum),
 814                          accum_ofdm->re_acq_main_rssi_sum,
 815                          delta_ofdm->re_acq_main_rssi_sum,
 816                          max_ofdm->re_acq_main_rssi_sum);
 817
 818         pos += scnprintf(buf + pos, bufsz - pos,
 819                          fmt_header, "Statistics_Rx - CCK:");
 820         pos += scnprintf(buf + pos, bufsz - pos,
 821                          fmt_table, "ina_cnt:",
 822                          le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
 823                          delta_cck->ina_cnt, max_cck->ina_cnt);
 824         pos += scnprintf(buf + pos, bufsz - pos,
 825                          fmt_table, "fina_cnt:",
 826                          le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
 827                          delta_cck->fina_cnt, max_cck->fina_cnt);
 828         pos += scnprintf(buf + pos, bufsz - pos,
 829                          fmt_table, "plcp_err:",
 830                          le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
 831                          delta_cck->plcp_err, max_cck->plcp_err);
 832         pos += scnprintf(buf + pos, bufsz - pos,
 833                          fmt_table, "crc32_err:",
 834                          le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
 835                          delta_cck->crc32_err, max_cck->crc32_err);
 836         pos += scnprintf(buf + pos, bufsz - pos,
 837                          fmt_table, "overrun_err:",
 838                          le32_to_cpu(cck->overrun_err),
 839                          accum_cck->overrun_err, delta_cck->overrun_err,
 840                          max_cck->overrun_err);
 841         pos += scnprintf(buf + pos, bufsz - pos,
 842                          fmt_table, "early_overrun_err:",
 843                          le32_to_cpu(cck->early_overrun_err),
 844                          accum_cck->early_overrun_err,
 845                          delta_cck->early_overrun_err,
 846                          max_cck->early_overrun_err);
 847         pos += scnprintf(buf + pos, bufsz - pos,
 848                          fmt_table, "crc32_good:",
 849                          le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
 850                          delta_cck->crc32_good, max_cck->crc32_good);
 851         pos += scnprintf(buf + pos, bufsz - pos,
 852                          fmt_table, "false_alarm_cnt:",
 853                          le32_to_cpu(cck->false_alarm_cnt),
 854                          accum_cck->false_alarm_cnt,
 855                          delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
 856         pos += scnprintf(buf + pos, bufsz - pos,
 857                          fmt_table, "fina_sync_err_cnt:",
 858                          le32_to_cpu(cck->fina_sync_err_cnt),
 859                          accum_cck->fina_sync_err_cnt,
 860                          delta_cck->fina_sync_err_cnt,
 861                          max_cck->fina_sync_err_cnt);
 862         pos += scnprintf(buf + pos, bufsz - pos,
 863                          fmt_table, "sfd_timeout:",
 864                          le32_to_cpu(cck->sfd_timeout),
 865                          accum_cck->sfd_timeout, delta_cck->sfd_timeout,
 866                          max_cck->sfd_timeout);
 867         pos += scnprintf(buf + pos, bufsz - pos,
 868                          fmt_table, "fina_timeout:",
 869                          le32_to_cpu(cck->fina_timeout),
 870                          accum_cck->fina_timeout, delta_cck->fina_timeout,
 871                          max_cck->fina_timeout);
 872         pos += scnprintf(buf + pos, bufsz - pos,
 873                          fmt_table, "unresponded_rts:",
 874                          le32_to_cpu(cck->unresponded_rts),
 875                          accum_cck->unresponded_rts, delta_cck->unresponded_rts,
 876                          max_cck->unresponded_rts);
 877         pos += scnprintf(buf + pos, bufsz - pos,
 878                          fmt_table, "rxe_frame_lmt_ovrun:",
 879                          le32_to_cpu(cck->rxe_frame_limit_overrun),
 880                          accum_cck->rxe_frame_limit_overrun,
 881                          delta_cck->rxe_frame_limit_overrun,
 882                          max_cck->rxe_frame_limit_overrun);
 883         pos += scnprintf(buf + pos, bufsz - pos,
 884                          fmt_table, "sent_ack_cnt:",
 885                          le32_to_cpu(cck->sent_ack_cnt),
 886                          accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
 887                          max_cck->sent_ack_cnt);
 888         pos += scnprintf(buf + pos, bufsz - pos,
 889                          fmt_table, "sent_cts_cnt:",
 890                          le32_to_cpu(cck->sent_cts_cnt),
 891                          accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
 892                          max_cck->sent_cts_cnt);
 893         pos += scnprintf(buf + pos, bufsz - pos,
 894                          fmt_table, "sent_ba_rsp_cnt:",
 895                          le32_to_cpu(cck->sent_ba_rsp_cnt),
 896                          accum_cck->sent_ba_rsp_cnt,
 897                          delta_cck->sent_ba_rsp_cnt,
 898                          max_cck->sent_ba_rsp_cnt);
 899         pos += scnprintf(buf + pos, bufsz - pos,
 900                          fmt_table, "dsp_self_kill:",
 901                          le32_to_cpu(cck->dsp_self_kill),
 902                          accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
 903                          max_cck->dsp_self_kill);
 904         pos += scnprintf(buf + pos, bufsz - pos,
 905                          fmt_table, "mh_format_err:",
 906                          le32_to_cpu(cck->mh_format_err),
 907                          accum_cck->mh_format_err, delta_cck->mh_format_err,
 908                          max_cck->mh_format_err);
 909         pos += scnprintf(buf + pos, bufsz - pos,
 910                          fmt_table, "re_acq_main_rssi_sum:",
 911                          le32_to_cpu(cck->re_acq_main_rssi_sum),
 912                          accum_cck->re_acq_main_rssi_sum,
 913                          delta_cck->re_acq_main_rssi_sum,
 914                          max_cck->re_acq_main_rssi_sum);
 915
 916         pos += scnprintf(buf + pos, bufsz - pos,
 917                          fmt_header, "Statistics_Rx - GENERAL:");
 918         pos += scnprintf(buf + pos, bufsz - pos,
 919                          fmt_table, "bogus_cts:",
 920                          le32_to_cpu(general->bogus_cts),
 921                          accum_general->bogus_cts, delta_general->bogus_cts,
 922                          max_general->bogus_cts);
 923         pos += scnprintf(buf + pos, bufsz - pos,
 924                          fmt_table, "bogus_ack:",
 925                          le32_to_cpu(general->bogus_ack),
 926                          accum_general->bogus_ack, delta_general->bogus_ack,
 927                          max_general->bogus_ack);
 928         pos += scnprintf(buf + pos, bufsz - pos,
 929                          fmt_table, "non_bssid_frames:",
 930                          le32_to_cpu(general->non_bssid_frames),
 931                          accum_general->non_bssid_frames,
 932                          delta_general->non_bssid_frames,
 933                          max_general->non_bssid_frames);
 934         pos += scnprintf(buf + pos, bufsz - pos,
 935                          fmt_table, "filtered_frames:",
 936                          le32_to_cpu(general->filtered_frames),
 937                          accum_general->filtered_frames,
 938                          delta_general->filtered_frames,
 939                          max_general->filtered_frames);
 940         pos += scnprintf(buf + pos, bufsz - pos,
 941                          fmt_table, "non_channel_beacons:",
 942                          le32_to_cpu(general->non_channel_beacons),
 943                          accum_general->non_channel_beacons,
 944                          delta_general->non_channel_beacons,
 945                          max_general->non_channel_beacons);
 946         pos += scnprintf(buf + pos, bufsz - pos,
 947                          fmt_table, "channel_beacons:",
 948                          le32_to_cpu(general->channel_beacons),
 949                          accum_general->channel_beacons,
 950                          delta_general->channel_beacons,
 951                          max_general->channel_beacons);
 952         pos += scnprintf(buf + pos, bufsz - pos,
 953                          fmt_table, "num_missed_bcon:",
 954                          le32_to_cpu(general->num_missed_bcon),
 955                          accum_general->num_missed_bcon,
 956                          delta_general->num_missed_bcon,
 957                          max_general->num_missed_bcon);
 958         pos += scnprintf(buf + pos, bufsz - pos,
 959                          fmt_table, "adc_rx_saturation_time:",
 960                          le32_to_cpu(general->adc_rx_saturation_time),
 961                          accum_general->adc_rx_saturation_time,
 962                          delta_general->adc_rx_saturation_time,
 963                          max_general->adc_rx_saturation_time);
 964         pos += scnprintf(buf + pos, bufsz - pos,
 965                          fmt_table, "ina_detect_search_tm:",
 966                          le32_to_cpu(general->ina_detection_search_time),
 967                          accum_general->ina_detection_search_time,
 968                          delta_general->ina_detection_search_time,
 969                          max_general->ina_detection_search_time);
 970         pos += scnprintf(buf + pos, bufsz - pos,
 971                          fmt_table, "beacon_silence_rssi_a:",
 972                          le32_to_cpu(general->beacon_silence_rssi_a),
 973                          accum_general->beacon_silence_rssi_a,
 974                          delta_general->beacon_silence_rssi_a,
 975                          max_general->beacon_silence_rssi_a);
 976         pos += scnprintf(buf + pos, bufsz - pos,
 977                          fmt_table, "beacon_silence_rssi_b:",
 978                          le32_to_cpu(general->beacon_silence_rssi_b),
 979                          accum_general->beacon_silence_rssi_b,
 980                          delta_general->beacon_silence_rssi_b,
 981                          max_general->beacon_silence_rssi_b);
 982         pos += scnprintf(buf + pos, bufsz - pos,
 983                          fmt_table, "beacon_silence_rssi_c:",
 984                          le32_to_cpu(general->beacon_silence_rssi_c),
 985                          accum_general->beacon_silence_rssi_c,
 986                          delta_general->beacon_silence_rssi_c,
 987                          max_general->beacon_silence_rssi_c);
 988         pos += scnprintf(buf + pos, bufsz - pos,
 989                          fmt_table, "interference_data_flag:",
 990                          le32_to_cpu(general->interference_data_flag),
 991                          accum_general->interference_data_flag,
 992                          delta_general->interference_data_flag,
 993                          max_general->interference_data_flag);
 994         pos += scnprintf(buf + pos, bufsz - pos,
 995                          fmt_table, "channel_load:",
 996                          le32_to_cpu(general->channel_load),
 997                          accum_general->channel_load,
 998                          delta_general->channel_load,
 999                          max_general->channel_load);
1000         pos += scnprintf(buf + pos, bufsz - pos,
1001                          fmt_table, "dsp_false_alarms:",
1002                          le32_to_cpu(general->dsp_false_alarms),
1003                          accum_general->dsp_false_alarms,
1004                          delta_general->dsp_false_alarms,
1005                          max_general->dsp_false_alarms);
1006         pos += scnprintf(buf + pos, bufsz - pos,
1007                          fmt_table, "beacon_rssi_a:",
1008                          le32_to_cpu(general->beacon_rssi_a),
1009                          accum_general->beacon_rssi_a,
1010                          delta_general->beacon_rssi_a,
1011                          max_general->beacon_rssi_a);
1012         pos += scnprintf(buf + pos, bufsz - pos,
1013                          fmt_table, "beacon_rssi_b:",
1014                          le32_to_cpu(general->beacon_rssi_b),
1015                          accum_general->beacon_rssi_b,
1016                          delta_general->beacon_rssi_b,
1017                          max_general->beacon_rssi_b);
1018         pos += scnprintf(buf + pos, bufsz - pos,
1019                          fmt_table, "beacon_rssi_c:",
1020                          le32_to_cpu(general->beacon_rssi_c),
1021                          accum_general->beacon_rssi_c,
1022                          delta_general->beacon_rssi_c,
1023                          max_general->beacon_rssi_c);
1024         pos += scnprintf(buf + pos, bufsz - pos,
1025                          fmt_table, "beacon_energy_a:",
1026                          le32_to_cpu(general->beacon_energy_a),
1027                          accum_general->beacon_energy_a,
1028                          delta_general->beacon_energy_a,
1029                          max_general->beacon_energy_a);
1030         pos += scnprintf(buf + pos, bufsz - pos,
1031                          fmt_table, "beacon_energy_b:",
1032                          le32_to_cpu(general->beacon_energy_b),
1033                          accum_general->beacon_energy_b,
1034                          delta_general->beacon_energy_b,
1035                          max_general->beacon_energy_b);
1036         pos += scnprintf(buf + pos, bufsz - pos,
1037                          fmt_table, "beacon_energy_c:",
1038                          le32_to_cpu(general->beacon_energy_c),
1039                          accum_general->beacon_energy_c,
1040                          delta_general->beacon_energy_c,
1041                          max_general->beacon_energy_c);
1042
1043         pos += scnprintf(buf + pos, bufsz - pos,
1044                          fmt_header, "Statistics_Rx - OFDM_HT:");
1045         pos += scnprintf(buf + pos, bufsz - pos,
1046                          fmt_table, "plcp_err:",
1047                          le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1048                          delta_ht->plcp_err, max_ht->plcp_err);
1049         pos += scnprintf(buf + pos, bufsz - pos,
1050                          fmt_table, "overrun_err:",
1051                          le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1052                          delta_ht->overrun_err, max_ht->overrun_err);
1053         pos += scnprintf(buf + pos, bufsz - pos,
1054                          fmt_table, "early_overrun_err:",
1055                          le32_to_cpu(ht->early_overrun_err),
1056                          accum_ht->early_overrun_err,
1057                          delta_ht->early_overrun_err,
1058                          max_ht->early_overrun_err);
1059         pos += scnprintf(buf + pos, bufsz - pos,
1060                          fmt_table, "crc32_good:",
1061                          le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1062                          delta_ht->crc32_good, max_ht->crc32_good);
1063         pos += scnprintf(buf + pos, bufsz - pos,
1064                          fmt_table, "crc32_err:",
1065                          le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1066                          delta_ht->crc32_err, max_ht->crc32_err);
1067         pos += scnprintf(buf + pos, bufsz - pos,
1068                          fmt_table, "mh_format_err:",
1069                          le32_to_cpu(ht->mh_format_err),
1070                          accum_ht->mh_format_err,
1071                          delta_ht->mh_format_err, max_ht->mh_format_err);
1072         pos += scnprintf(buf + pos, bufsz - pos,
1073                          fmt_table, "agg_crc32_good:",
1074                          le32_to_cpu(ht->agg_crc32_good),
1075                          accum_ht->agg_crc32_good,
1076                          delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1077         pos += scnprintf(buf + pos, bufsz - pos,
1078                          fmt_table, "agg_mpdu_cnt:",
1079                          le32_to_cpu(ht->agg_mpdu_cnt),
1080                          accum_ht->agg_mpdu_cnt,
1081                          delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1082         pos += scnprintf(buf + pos, bufsz - pos,
1083                          fmt_table, "agg_cnt:",
1084                          le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1085                          delta_ht->agg_cnt, max_ht->agg_cnt);
1086         pos += scnprintf(buf + pos, bufsz - pos,
1087                          fmt_table, "unsupport_mcs:",
1088                          le32_to_cpu(ht->unsupport_mcs),
1089                          accum_ht->unsupport_mcs,
1090                          delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1091
1092         spin_unlock_bh(&priv->statistics.lock);
1093
1094         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1095         kfree(buf);
1096         return ret;
1097 }
1098
1099 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1100                                         char __user *user_buf,
1101                                         size_t count, loff_t *ppos)
1102 {
1103         struct iwl_priv *priv = file->private_data;
1104         int pos = 0;
1105         char *buf;
1106         int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1107         ssize_t ret;
1108         struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1109
1110         if (!iwl_is_alive(priv))
1111                 return -EAGAIN;
1112
1113         buf = kzalloc(bufsz, GFP_KERNEL);
1114         if (!buf)
1115                 return -ENOMEM;
1116
1117         /* the statistic information display here is based on
1118          * the last statistics notification from uCode
1119          * might not reflect the current uCode activity
1120          */
1121         spin_lock_bh(&priv->statistics.lock);
1122
1123         tx = &priv->statistics.tx;
1124         accum_tx = &priv->accum_stats.tx;
1125         delta_tx = &priv->delta_stats.tx;
1126         max_tx = &priv->max_delta_stats.tx;
1127
1128         pos += iwl_statistics_flag(priv, buf, bufsz);
1129         pos += scnprintf(buf + pos, bufsz - pos,
1130                          fmt_header, "Statistics_Tx:");
1131         pos += scnprintf(buf + pos, bufsz - pos,
1132                          fmt_table, "preamble:",
1133                          le32_to_cpu(tx->preamble_cnt),
1134                          accum_tx->preamble_cnt,
1135                          delta_tx->preamble_cnt, max_tx->preamble_cnt);
1136         pos += scnprintf(buf + pos, bufsz - pos,
1137                          fmt_table, "rx_detected_cnt:",
1138                          le32_to_cpu(tx->rx_detected_cnt),
1139                          accum_tx->rx_detected_cnt,
1140                          delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1141         pos += scnprintf(buf + pos, bufsz - pos,
1142                          fmt_table, "bt_prio_defer_cnt:",
1143                          le32_to_cpu(tx->bt_prio_defer_cnt),
1144                          accum_tx->bt_prio_defer_cnt,
1145                          delta_tx->bt_prio_defer_cnt,
1146                          max_tx->bt_prio_defer_cnt);
1147         pos += scnprintf(buf + pos, bufsz - pos,
1148                          fmt_table, "bt_prio_kill_cnt:",
1149                          le32_to_cpu(tx->bt_prio_kill_cnt),
1150                          accum_tx->bt_prio_kill_cnt,
1151                          delta_tx->bt_prio_kill_cnt,
1152                          max_tx->bt_prio_kill_cnt);
1153         pos += scnprintf(buf + pos, bufsz - pos,
1154                          fmt_table, "few_bytes_cnt:",
1155                          le32_to_cpu(tx->few_bytes_cnt),
1156                          accum_tx->few_bytes_cnt,
1157                          delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1158         pos += scnprintf(buf + pos, bufsz - pos,
1159                          fmt_table, "cts_timeout:",
1160                          le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1161                          delta_tx->cts_timeout, max_tx->cts_timeout);
1162         pos += scnprintf(buf + pos, bufsz - pos,
1163                          fmt_table, "ack_timeout:",
1164                          le32_to_cpu(tx->ack_timeout),
1165                          accum_tx->ack_timeout,
1166                          delta_tx->ack_timeout, max_tx->ack_timeout);
1167         pos += scnprintf(buf + pos, bufsz - pos,
1168                          fmt_table, "expected_ack_cnt:",
1169                          le32_to_cpu(tx->expected_ack_cnt),
1170                          accum_tx->expected_ack_cnt,
1171                          delta_tx->expected_ack_cnt,
1172                          max_tx->expected_ack_cnt);
1173         pos += scnprintf(buf + pos, bufsz - pos,
1174                          fmt_table, "actual_ack_cnt:",
1175                          le32_to_cpu(tx->actual_ack_cnt),
1176                          accum_tx->actual_ack_cnt,
1177                          delta_tx->actual_ack_cnt,
1178                          max_tx->actual_ack_cnt);
1179         pos += scnprintf(buf + pos, bufsz - pos,
1180                          fmt_table, "dump_msdu_cnt:",
1181                          le32_to_cpu(tx->dump_msdu_cnt),
1182                          accum_tx->dump_msdu_cnt,
1183                          delta_tx->dump_msdu_cnt,
1184                          max_tx->dump_msdu_cnt);
1185         pos += scnprintf(buf + pos, bufsz - pos,
1186                          fmt_table, "abort_nxt_frame_mismatch:",
1187                          le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1188                          accum_tx->burst_abort_next_frame_mismatch_cnt,
1189                          delta_tx->burst_abort_next_frame_mismatch_cnt,
1190                          max_tx->burst_abort_next_frame_mismatch_cnt);
1191         pos += scnprintf(buf + pos, bufsz - pos,
1192                          fmt_table, "abort_missing_nxt_frame:",
1193                          le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1194                          accum_tx->burst_abort_missing_next_frame_cnt,
1195                          delta_tx->burst_abort_missing_next_frame_cnt,
1196                          max_tx->burst_abort_missing_next_frame_cnt);
1197         pos += scnprintf(buf + pos, bufsz - pos,
1198                          fmt_table, "cts_timeout_collision:",
1199                          le32_to_cpu(tx->cts_timeout_collision),
1200                          accum_tx->cts_timeout_collision,
1201                          delta_tx->cts_timeout_collision,
1202                          max_tx->cts_timeout_collision);
1203         pos += scnprintf(buf + pos, bufsz - pos,
1204                          fmt_table, "ack_ba_timeout_collision:",
1205                          le32_to_cpu(tx->ack_or_ba_timeout_collision),
1206                          accum_tx->ack_or_ba_timeout_collision,
1207                          delta_tx->ack_or_ba_timeout_collision,
1208                          max_tx->ack_or_ba_timeout_collision);
1209         pos += scnprintf(buf + pos, bufsz - pos,
1210                          fmt_table, "agg ba_timeout:",
1211                          le32_to_cpu(tx->agg.ba_timeout),
1212                          accum_tx->agg.ba_timeout,
1213                          delta_tx->agg.ba_timeout,
1214                          max_tx->agg.ba_timeout);
1215         pos += scnprintf(buf + pos, bufsz - pos,
1216                          fmt_table, "agg ba_resched_frames:",
1217                          le32_to_cpu(tx->agg.ba_reschedule_frames),
1218                          accum_tx->agg.ba_reschedule_frames,
1219                          delta_tx->agg.ba_reschedule_frames,
1220                          max_tx->agg.ba_reschedule_frames);
1221         pos += scnprintf(buf + pos, bufsz - pos,
1222                          fmt_table, "agg scd_query_agg_frame:",
1223                          le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1224                          accum_tx->agg.scd_query_agg_frame_cnt,
1225                          delta_tx->agg.scd_query_agg_frame_cnt,
1226                          max_tx->agg.scd_query_agg_frame_cnt);
1227         pos += scnprintf(buf + pos, bufsz - pos,
1228                          fmt_table, "agg scd_query_no_agg:",
1229                          le32_to_cpu(tx->agg.scd_query_no_agg),
1230                          accum_tx->agg.scd_query_no_agg,
1231                          delta_tx->agg.scd_query_no_agg,
1232                          max_tx->agg.scd_query_no_agg);
1233         pos += scnprintf(buf + pos, bufsz - pos,
1234                          fmt_table, "agg scd_query_agg:",
1235                          le32_to_cpu(tx->agg.scd_query_agg),
1236                          accum_tx->agg.scd_query_agg,
1237                          delta_tx->agg.scd_query_agg,
1238                          max_tx->agg.scd_query_agg);
1239         pos += scnprintf(buf + pos, bufsz - pos,
1240                          fmt_table, "agg scd_query_mismatch:",
1241                          le32_to_cpu(tx->agg.scd_query_mismatch),
1242                          accum_tx->agg.scd_query_mismatch,
1243                          delta_tx->agg.scd_query_mismatch,
1244                          max_tx->agg.scd_query_mismatch);
1245         pos += scnprintf(buf + pos, bufsz - pos,
1246                          fmt_table, "agg frame_not_ready:",
1247                          le32_to_cpu(tx->agg.frame_not_ready),
1248                          accum_tx->agg.frame_not_ready,
1249                          delta_tx->agg.frame_not_ready,
1250                          max_tx->agg.frame_not_ready);
1251         pos += scnprintf(buf + pos, bufsz - pos,
1252                          fmt_table, "agg underrun:",
1253                          le32_to_cpu(tx->agg.underrun),
1254                          accum_tx->agg.underrun,
1255                          delta_tx->agg.underrun, max_tx->agg.underrun);
1256         pos += scnprintf(buf + pos, bufsz - pos,
1257                          fmt_table, "agg bt_prio_kill:",
1258                          le32_to_cpu(tx->agg.bt_prio_kill),
1259                          accum_tx->agg.bt_prio_kill,
1260                          delta_tx->agg.bt_prio_kill,
1261                          max_tx->agg.bt_prio_kill);
1262         pos += scnprintf(buf + pos, bufsz - pos,
1263                          fmt_table, "agg rx_ba_rsp_cnt:",
1264                          le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1265                          accum_tx->agg.rx_ba_rsp_cnt,
1266                          delta_tx->agg.rx_ba_rsp_cnt,
1267                          max_tx->agg.rx_ba_rsp_cnt);
1268
1269         if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
1270                 pos += scnprintf(buf + pos, bufsz - pos,
1271                         "tx power: (1/2 dB step)\n");
1272                 if ((priv->nvm_data->valid_tx_ant & ANT_A) &&
1273                     tx->tx_power.ant_a)
1274                         pos += scnprintf(buf + pos, bufsz - pos,
1275                                         fmt_hex, "antenna A:",
1276                                         tx->tx_power.ant_a);
1277                 if ((priv->nvm_data->valid_tx_ant & ANT_B) &&
1278                     tx->tx_power.ant_b)
1279                         pos += scnprintf(buf + pos, bufsz - pos,
1280                                         fmt_hex, "antenna B:",
1281                                         tx->tx_power.ant_b);
1282                 if ((priv->nvm_data->valid_tx_ant & ANT_C) &&
1283                     tx->tx_power.ant_c)
1284                         pos += scnprintf(buf + pos, bufsz - pos,
1285                                         fmt_hex, "antenna C:",
1286                                         tx->tx_power.ant_c);
1287         }
1288
1289         spin_unlock_bh(&priv->statistics.lock);
1290
1291         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1292         kfree(buf);
1293         return ret;
1294 }
1295
1296 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1297                                         char __user *user_buf,
1298                                         size_t count, loff_t *ppos)
1299 {
1300         struct iwl_priv *priv = file->private_data;
1301         int pos = 0;
1302         char *buf;
1303         int bufsz = sizeof(struct statistics_general) * 10 + 300;
1304         ssize_t ret;
1305         struct statistics_general_common *general, *accum_general;
1306         struct statistics_general_common *delta_general, *max_general;
1307         struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1308         struct statistics_div *div, *accum_div, *delta_div, *max_div;
1309
1310         if (!iwl_is_alive(priv))
1311                 return -EAGAIN;
1312
1313         buf = kzalloc(bufsz, GFP_KERNEL);
1314         if (!buf)
1315                 return -ENOMEM;
1316
1317         /* the statistic information display here is based on
1318          * the last statistics notification from uCode
1319          * might not reflect the current uCode activity
1320          */
1321
1322         spin_lock_bh(&priv->statistics.lock);
1323
1324         general = &priv->statistics.common;
1325         dbg = &priv->statistics.common.dbg;
1326         div = &priv->statistics.common.div;
1327         accum_general = &priv->accum_stats.common;
1328         accum_dbg = &priv->accum_stats.common.dbg;
1329         accum_div = &priv->accum_stats.common.div;
1330         delta_general = &priv->delta_stats.common;
1331         max_general = &priv->max_delta_stats.common;
1332         delta_dbg = &priv->delta_stats.common.dbg;
1333         max_dbg = &priv->max_delta_stats.common.dbg;
1334         delta_div = &priv->delta_stats.common.div;
1335         max_div = &priv->max_delta_stats.common.div;
1336
1337         pos += iwl_statistics_flag(priv, buf, bufsz);
1338         pos += scnprintf(buf + pos, bufsz - pos,
1339                          fmt_header, "Statistics_General:");
1340         pos += scnprintf(buf + pos, bufsz - pos,
1341                          fmt_value, "temperature:",
1342                          le32_to_cpu(general->temperature));
1343         pos += scnprintf(buf + pos, bufsz - pos,
1344                          fmt_value, "temperature_m:",
1345                          le32_to_cpu(general->temperature_m));
1346         pos += scnprintf(buf + pos, bufsz - pos,
1347                          fmt_value, "ttl_timestamp:",
1348                          le32_to_cpu(general->ttl_timestamp));
1349         pos += scnprintf(buf + pos, bufsz - pos,
1350                          fmt_table, "burst_check:",
1351                          le32_to_cpu(dbg->burst_check),
1352                          accum_dbg->burst_check,
1353                          delta_dbg->burst_check, max_dbg->burst_check);
1354         pos += scnprintf(buf + pos, bufsz - pos,
1355                          fmt_table, "burst_count:",
1356                          le32_to_cpu(dbg->burst_count),
1357                          accum_dbg->burst_count,
1358                          delta_dbg->burst_count, max_dbg->burst_count);
1359         pos += scnprintf(buf + pos, bufsz - pos,
1360                          fmt_table, "wait_for_silence_timeout_count:",
1361                          le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
1362                          accum_dbg->wait_for_silence_timeout_cnt,
1363                          delta_dbg->wait_for_silence_timeout_cnt,
1364                          max_dbg->wait_for_silence_timeout_cnt);
1365         pos += scnprintf(buf + pos, bufsz - pos,
1366                          fmt_table, "sleep_time:",
1367                          le32_to_cpu(general->sleep_time),
1368                          accum_general->sleep_time,
1369                          delta_general->sleep_time, max_general->sleep_time);
1370         pos += scnprintf(buf + pos, bufsz - pos,
1371                          fmt_table, "slots_out:",
1372                          le32_to_cpu(general->slots_out),
1373                          accum_general->slots_out,
1374                          delta_general->slots_out, max_general->slots_out);
1375         pos += scnprintf(buf + pos, bufsz - pos,
1376                          fmt_table, "slots_idle:",
1377                          le32_to_cpu(general->slots_idle),
1378                          accum_general->slots_idle,
1379                          delta_general->slots_idle, max_general->slots_idle);
1380         pos += scnprintf(buf + pos, bufsz - pos,
1381                          fmt_table, "tx_on_a:",
1382                          le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1383                          delta_div->tx_on_a, max_div->tx_on_a);
1384         pos += scnprintf(buf + pos, bufsz - pos,
1385                          fmt_table, "tx_on_b:",
1386                          le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1387                          delta_div->tx_on_b, max_div->tx_on_b);
1388         pos += scnprintf(buf + pos, bufsz - pos,
1389                          fmt_table, "exec_time:",
1390                          le32_to_cpu(div->exec_time), accum_div->exec_time,
1391                          delta_div->exec_time, max_div->exec_time);
1392         pos += scnprintf(buf + pos, bufsz - pos,
1393                          fmt_table, "probe_time:",
1394                          le32_to_cpu(div->probe_time), accum_div->probe_time,
1395                          delta_div->probe_time, max_div->probe_time);
1396         pos += scnprintf(buf + pos, bufsz - pos,
1397                          fmt_table, "rx_enable_counter:",
1398                          le32_to_cpu(general->rx_enable_counter),
1399                          accum_general->rx_enable_counter,
1400                          delta_general->rx_enable_counter,
1401                          max_general->rx_enable_counter);
1402         pos += scnprintf(buf + pos, bufsz - pos,
1403                          fmt_table, "num_of_sos_states:",
1404                          le32_to_cpu(general->num_of_sos_states),
1405                          accum_general->num_of_sos_states,
1406                          delta_general->num_of_sos_states,
1407                          max_general->num_of_sos_states);
1408
1409         spin_unlock_bh(&priv->statistics.lock);
1410
1411         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1412         kfree(buf);
1413         return ret;
1414 }
1415
1416 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1417                                         char __user *user_buf,
1418                                         size_t count, loff_t *ppos)
1419 {
1420         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1421         int pos = 0;
1422         char *buf;
1423         int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
1424         ssize_t ret;
1425         struct statistics_bt_activity *bt, *accum_bt;
1426
1427         if (!iwl_is_alive(priv))
1428                 return -EAGAIN;
1429
1430         if (!priv->bt_enable_flag)
1431                 return -EINVAL;
1432
1433         /* make request to uCode to retrieve statistics information */
1434         mutex_lock(&priv->mutex);
1435         ret = iwl_send_statistics_request(priv, 0, false);
1436         mutex_unlock(&priv->mutex);
1437
1438         if (ret)
1439                 return -EAGAIN;
1440         buf = kzalloc(bufsz, GFP_KERNEL);
1441         if (!buf)
1442                 return -ENOMEM;
1443
1444         /*
1445          * the statistic information display here is based on
1446          * the last statistics notification from uCode
1447          * might not reflect the current uCode activity
1448          */
1449
1450         spin_lock_bh(&priv->statistics.lock);
1451
1452         bt = &priv->statistics.bt_activity;
1453         accum_bt = &priv->accum_stats.bt_activity;
1454
1455         pos += iwl_statistics_flag(priv, buf, bufsz);
1456         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
1457         pos += scnprintf(buf + pos, bufsz - pos,
1458                         "\t\t\tcurrent\t\t\taccumulative\n");
1459         pos += scnprintf(buf + pos, bufsz - pos,
1460                          "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1461                          le32_to_cpu(bt->hi_priority_tx_req_cnt),
1462                          accum_bt->hi_priority_tx_req_cnt);
1463         pos += scnprintf(buf + pos, bufsz - pos,
1464                          "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1465                          le32_to_cpu(bt->hi_priority_tx_denied_cnt),
1466                          accum_bt->hi_priority_tx_denied_cnt);
1467         pos += scnprintf(buf + pos, bufsz - pos,
1468                          "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1469                          le32_to_cpu(bt->lo_priority_tx_req_cnt),
1470                          accum_bt->lo_priority_tx_req_cnt);
1471         pos += scnprintf(buf + pos, bufsz - pos,
1472                          "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1473                          le32_to_cpu(bt->lo_priority_tx_denied_cnt),
1474                          accum_bt->lo_priority_tx_denied_cnt);
1475         pos += scnprintf(buf + pos, bufsz - pos,
1476                          "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1477                          le32_to_cpu(bt->hi_priority_rx_req_cnt),
1478                          accum_bt->hi_priority_rx_req_cnt);
1479         pos += scnprintf(buf + pos, bufsz - pos,
1480                          "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1481                          le32_to_cpu(bt->hi_priority_rx_denied_cnt),
1482                          accum_bt->hi_priority_rx_denied_cnt);
1483         pos += scnprintf(buf + pos, bufsz - pos,
1484                          "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1485                          le32_to_cpu(bt->lo_priority_rx_req_cnt),
1486                          accum_bt->lo_priority_rx_req_cnt);
1487         pos += scnprintf(buf + pos, bufsz - pos,
1488                          "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1489                          le32_to_cpu(bt->lo_priority_rx_denied_cnt),
1490                          accum_bt->lo_priority_rx_denied_cnt);
1491
1492         pos += scnprintf(buf + pos, bufsz - pos,
1493                          "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
1494                          le32_to_cpu(priv->statistics.num_bt_kills),
1495                          priv->statistics.accum_num_bt_kills);
1496
1497         spin_unlock_bh(&priv->statistics.lock);
1498
1499         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1500         kfree(buf);
1501         return ret;
1502 }
1503
1504 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1505                                         char __user *user_buf,
1506                                         size_t count, loff_t *ppos)
1507 {
1508         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1509         int pos = 0;
1510         char *buf;
1511         int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
1512                 (sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
1513         ssize_t ret;
1514
1515         if (!iwl_is_alive(priv))
1516                 return -EAGAIN;
1517
1518         buf = kzalloc(bufsz, GFP_KERNEL);
1519         if (!buf)
1520                 return -ENOMEM;
1521
1522         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
1523         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
1524                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1525                          priv->reply_tx_stats.pp_delay);
1526         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1527                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1528                          priv->reply_tx_stats.pp_few_bytes);
1529         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1530                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1531                          priv->reply_tx_stats.pp_bt_prio);
1532         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1533                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1534                          priv->reply_tx_stats.pp_quiet_period);
1535         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1536                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1537                          priv->reply_tx_stats.pp_calc_ttak);
1538         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1539                          iwl_get_tx_fail_reason(
1540                                 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1541                          priv->reply_tx_stats.int_crossed_retry);
1542         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1543                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1544                          priv->reply_tx_stats.short_limit);
1545         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1546                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1547                          priv->reply_tx_stats.long_limit);
1548         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1549                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1550                          priv->reply_tx_stats.fifo_underrun);
1551         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1552                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1553                          priv->reply_tx_stats.drain_flow);
1554         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1555                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1556                          priv->reply_tx_stats.rfkill_flush);
1557         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1558                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1559                          priv->reply_tx_stats.life_expire);
1560         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1561                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1562                          priv->reply_tx_stats.dest_ps);
1563         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1564                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1565                          priv->reply_tx_stats.host_abort);
1566         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1567                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1568                          priv->reply_tx_stats.pp_delay);
1569         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1570                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1571                          priv->reply_tx_stats.sta_invalid);
1572         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1573                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1574                          priv->reply_tx_stats.frag_drop);
1575         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1576                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1577                          priv->reply_tx_stats.tid_disable);
1578         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1579                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1580                          priv->reply_tx_stats.fifo_flush);
1581         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1582                          iwl_get_tx_fail_reason(
1583                                 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1584                          priv->reply_tx_stats.insuff_cf_poll);
1585         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1586                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1587                          priv->reply_tx_stats.fail_hw_drop);
1588         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1589                          iwl_get_tx_fail_reason(
1590                                 TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1591                          priv->reply_tx_stats.sta_color_mismatch);
1592         pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1593                          priv->reply_tx_stats.unknown);
1594
1595         pos += scnprintf(buf + pos, bufsz - pos,
1596                          "\nStatistics_Agg_TX_Error:\n");
1597
1598         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1599                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1600                          priv->reply_agg_tx_stats.underrun);
1601         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1602                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1603                          priv->reply_agg_tx_stats.bt_prio);
1604         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1605                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1606                          priv->reply_agg_tx_stats.few_bytes);
1607         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1608                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
1609                          priv->reply_agg_tx_stats.abort);
1610         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1611                          iwl_get_agg_tx_fail_reason(
1612                                 AGG_TX_STATE_LAST_SENT_TTL_MSK),
1613                          priv->reply_agg_tx_stats.last_sent_ttl);
1614         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1615                          iwl_get_agg_tx_fail_reason(
1616                                 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK),
1617                          priv->reply_agg_tx_stats.last_sent_try);
1618         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1619                          iwl_get_agg_tx_fail_reason(
1620                                 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
1621                          priv->reply_agg_tx_stats.last_sent_bt_kill);
1622         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1623                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
1624                          priv->reply_agg_tx_stats.scd_query);
1625         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1626                          iwl_get_agg_tx_fail_reason(
1627                                 AGG_TX_STATE_TEST_BAD_CRC32_MSK),
1628                          priv->reply_agg_tx_stats.bad_crc32);
1629         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1630                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
1631                          priv->reply_agg_tx_stats.response);
1632         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1633                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
1634                          priv->reply_agg_tx_stats.dump_tx);
1635         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1636                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
1637                          priv->reply_agg_tx_stats.delay_tx);
1638         pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1639                          priv->reply_agg_tx_stats.unknown);
1640
1641         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1642         kfree(buf);
1643         return ret;
1644 }
1645
1646 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1647                                         char __user *user_buf,
1648                                         size_t count, loff_t *ppos) {
1649
1650         struct iwl_priv *priv = file->private_data;
1651         int pos = 0;
1652         int cnt = 0;
1653         char *buf;
1654         int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1655         ssize_t ret;
1656         struct iwl_sensitivity_data *data;
1657
1658         data = &priv->sensitivity_data;
1659         buf = kzalloc(bufsz, GFP_KERNEL);
1660         if (!buf)
1661                 return -ENOMEM;
1662
1663         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1664                         data->auto_corr_ofdm);
1665         pos += scnprintf(buf + pos, bufsz - pos,
1666                         "auto_corr_ofdm_mrc:\t\t %u\n",
1667                         data->auto_corr_ofdm_mrc);
1668         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1669                         data->auto_corr_ofdm_x1);
1670         pos += scnprintf(buf + pos, bufsz - pos,
1671                         "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1672                         data->auto_corr_ofdm_mrc_x1);
1673         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1674                         data->auto_corr_cck);
1675         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1676                         data->auto_corr_cck_mrc);
1677         pos += scnprintf(buf + pos, bufsz - pos,
1678                         "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1679                         data->last_bad_plcp_cnt_ofdm);
1680         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1681                         data->last_fa_cnt_ofdm);
1682         pos += scnprintf(buf + pos, bufsz - pos,
1683                         "last_bad_plcp_cnt_cck:\t\t %u\n",
1684                         data->last_bad_plcp_cnt_cck);
1685         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1686                         data->last_fa_cnt_cck);
1687         pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1688                         data->nrg_curr_state);
1689         pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1690                         data->nrg_prev_state);
1691         pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1692         for (cnt = 0; cnt < 10; cnt++) {
1693                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1694                                 data->nrg_value[cnt]);
1695         }
1696         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1697         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1698         for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1699                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1700                                 data->nrg_silence_rssi[cnt]);
1701         }
1702         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1703         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1704                         data->nrg_silence_ref);
1705         pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1706                         data->nrg_energy_idx);
1707         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1708                         data->nrg_silence_idx);
1709         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1710                         data->nrg_th_cck);
1711         pos += scnprintf(buf + pos, bufsz - pos,
1712                         "nrg_auto_corr_silence_diff:\t %u\n",
1713                         data->nrg_auto_corr_silence_diff);
1714         pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1715                         data->num_in_cck_no_fa);
1716         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1717                         data->nrg_th_ofdm);
1718
1719         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1720         kfree(buf);
1721         return ret;
1722 }
1723
1724
1725 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1726                                         char __user *user_buf,
1727                                         size_t count, loff_t *ppos) {
1728
1729         struct iwl_priv *priv = file->private_data;
1730         int pos = 0;
1731         int cnt = 0;
1732         char *buf;
1733         int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1734         ssize_t ret;
1735         struct iwl_chain_noise_data *data;
1736
1737         data = &priv->chain_noise_data;
1738         buf = kzalloc(bufsz, GFP_KERNEL);
1739         if (!buf)
1740                 return -ENOMEM;
1741
1742         pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1743                         data->active_chains);
1744         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1745                         data->chain_noise_a);
1746         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1747                         data->chain_noise_b);
1748         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1749                         data->chain_noise_c);
1750         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1751                         data->chain_signal_a);
1752         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1753                         data->chain_signal_b);
1754         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1755                         data->chain_signal_c);
1756         pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1757                         data->beacon_count);
1758
1759         pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1760         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1761                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1762                                 data->disconn_array[cnt]);
1763         }
1764         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1765         pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1766         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1767                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1768                                 data->delta_gain_code[cnt]);
1769         }
1770         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1771         pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1772                         data->radio_write);
1773         pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1774                         data->state);
1775
1776         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1777         kfree(buf);
1778         return ret;
1779 }
1780
1781 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1782                                                     char __user *user_buf,
1783                                                     size_t count, loff_t *ppos)
1784 {
1785         struct iwl_priv *priv = file->private_data;
1786         char buf[60];
1787         int pos = 0;
1788         const size_t bufsz = sizeof(buf);
1789         u32 pwrsave_status;
1790
1791         pwrsave_status = iwl_read32(priv->trans, CSR_GP_CNTRL) &
1792                         CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1793
1794         pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1795         pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1796                 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1797                 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1798                 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1799                 "error");
1800
1801         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1802 }
1803
1804 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1805                                          const char __user *user_buf,
1806                                          size_t count, loff_t *ppos)
1807 {
1808         struct iwl_priv *priv = file->private_data;
1809         char buf[8];
1810         int buf_size;
1811         int clear;
1812
1813         memset(buf, 0, sizeof(buf));
1814         buf_size = min(count, sizeof(buf) -  1);
1815         if (copy_from_user(buf, user_buf, buf_size))
1816                 return -EFAULT;
1817         if (sscanf(buf, "%d", &clear) != 1)
1818                 return -EFAULT;
1819
1820         /* make request to uCode to retrieve statistics information */
1821         mutex_lock(&priv->mutex);
1822         iwl_send_statistics_request(priv, 0, true);
1823         mutex_unlock(&priv->mutex);
1824
1825         return count;
1826 }
1827
1828 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1829                                         char __user *user_buf,
1830                                         size_t count, loff_t *ppos) {
1831
1832         struct iwl_priv *priv = file->private_data;
1833         int pos = 0;
1834         char buf[128];
1835         const size_t bufsz = sizeof(buf);
1836
1837         pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1838                         priv->event_log.ucode_trace ? "On" : "Off");
1839         pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1840                         priv->event_log.non_wraps_count);
1841         pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1842                         priv->event_log.wraps_once_count);
1843         pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1844                         priv->event_log.wraps_more_count);
1845
1846         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1847 }
1848
1849 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1850                                          const char __user *user_buf,
1851                                          size_t count, loff_t *ppos)
1852 {
1853         struct iwl_priv *priv = file->private_data;
1854         char buf[8];
1855         int buf_size;
1856         int trace;
1857
1858         memset(buf, 0, sizeof(buf));
1859         buf_size = min(count, sizeof(buf) -  1);
1860         if (copy_from_user(buf, user_buf, buf_size))
1861                 return -EFAULT;
1862         if (sscanf(buf, "%d", &trace) != 1)
1863                 return -EFAULT;
1864
1865         if (trace) {
1866                 priv->event_log.ucode_trace = true;
1867                 if (iwl_is_alive(priv)) {
1868                         /* start collecting data now */
1869                         mod_timer(&priv->ucode_trace, jiffies);
1870                 }
1871         } else {
1872                 priv->event_log.ucode_trace = false;
1873                 del_timer_sync(&priv->ucode_trace);
1874         }
1875
1876         return count;
1877 }
1878
1879 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1880                                          char __user *user_buf,
1881                                          size_t count, loff_t *ppos) {
1882
1883         struct iwl_priv *priv = file->private_data;
1884         int len = 0;
1885         char buf[20];
1886
1887         len = sprintf(buf, "0x%04X\n",
1888                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1889         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1890 }
1891
1892 static ssize_t iwl_dbgfs_rxon_filter_flags_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 len = 0;
1898         char buf[20];
1899
1900         len = sprintf(buf, "0x%04X\n",
1901                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1902         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1903 }
1904
1905 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1906                                         char __user *user_buf,
1907                                         size_t count, loff_t *ppos) {
1908
1909         struct iwl_priv *priv = file->private_data;
1910         int pos = 0;
1911         char buf[12];
1912         const size_t bufsz = sizeof(buf);
1913
1914         pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1915                         priv->missed_beacon_threshold);
1916
1917         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1918 }
1919
1920 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1921                                          const char __user *user_buf,
1922                                          size_t count, loff_t *ppos)
1923 {
1924         struct iwl_priv *priv = file->private_data;
1925         char buf[8];
1926         int buf_size;
1927         int missed;
1928
1929         memset(buf, 0, sizeof(buf));
1930         buf_size = min(count, sizeof(buf) -  1);
1931         if (copy_from_user(buf, user_buf, buf_size))
1932                 return -EFAULT;
1933         if (sscanf(buf, "%d", &missed) != 1)
1934                 return -EINVAL;
1935
1936         if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1937             missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1938                 priv->missed_beacon_threshold =
1939                         IWL_MISSED_BEACON_THRESHOLD_DEF;
1940         else
1941                 priv->missed_beacon_threshold = missed;
1942
1943         return count;
1944 }
1945
1946 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1947                                         char __user *user_buf,
1948                                         size_t count, loff_t *ppos) {
1949
1950         struct iwl_priv *priv = file->private_data;
1951         int pos = 0;
1952         char buf[12];
1953         const size_t bufsz = sizeof(buf);
1954
1955         pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1956                         priv->plcp_delta_threshold);
1957
1958         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1959 }
1960
1961 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1962                                         const char __user *user_buf,
1963                                         size_t count, loff_t *ppos) {
1964
1965         struct iwl_priv *priv = file->private_data;
1966         char buf[8];
1967         int buf_size;
1968         int plcp;
1969
1970         memset(buf, 0, sizeof(buf));
1971         buf_size = min(count, sizeof(buf) -  1);
1972         if (copy_from_user(buf, user_buf, buf_size))
1973                 return -EFAULT;
1974         if (sscanf(buf, "%d", &plcp) != 1)
1975                 return -EINVAL;
1976         if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1977                 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1978                 priv->plcp_delta_threshold =
1979                         IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
1980         else
1981                 priv->plcp_delta_threshold = plcp;
1982         return count;
1983 }
1984
1985 static ssize_t iwl_dbgfs_rf_reset_read(struct file *file,
1986                                        char __user *user_buf,
1987                                        size_t count, loff_t *ppos)
1988 {
1989         struct iwl_priv *priv = file->private_data;
1990         int pos = 0;
1991         char buf[300];
1992         const size_t bufsz = sizeof(buf);
1993         struct iwl_rf_reset *rf_reset = &priv->rf_reset;
1994
1995         pos += scnprintf(buf + pos, bufsz - pos,
1996                         "RF reset statistics\n");
1997         pos += scnprintf(buf + pos, bufsz - pos,
1998                         "\tnumber of reset request: %d\n",
1999                         rf_reset->reset_request_count);
2000         pos += scnprintf(buf + pos, bufsz - pos,
2001                         "\tnumber of reset request success: %d\n",
2002                         rf_reset->reset_success_count);
2003         pos += scnprintf(buf + pos, bufsz - pos,
2004                         "\tnumber of reset request reject: %d\n",
2005                         rf_reset->reset_reject_count);
2006
2007         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2008 }
2009
2010 static ssize_t iwl_dbgfs_rf_reset_write(struct file *file,
2011                                         const char __user *user_buf,
2012                                         size_t count, loff_t *ppos) {
2013
2014         struct iwl_priv *priv = file->private_data;
2015         int ret;
2016
2017         ret = iwl_force_rf_reset(priv, true);
2018         return ret ? ret : count;
2019 }
2020
2021 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
2022                                         const char __user *user_buf,
2023                                         size_t count, loff_t *ppos) {
2024
2025         struct iwl_priv *priv = file->private_data;
2026         char buf[8];
2027         int buf_size;
2028         int flush;
2029
2030         memset(buf, 0, sizeof(buf));
2031         buf_size = min(count, sizeof(buf) -  1);
2032         if (copy_from_user(buf, user_buf, buf_size))
2033                 return -EFAULT;
2034         if (sscanf(buf, "%d", &flush) != 1)
2035                 return -EINVAL;
2036
2037         if (iwl_is_rfkill(priv))
2038                 return -EFAULT;
2039
2040         iwlagn_dev_txfifo_flush(priv);
2041
2042         return count;
2043 }
2044
2045 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
2046                                         char __user *user_buf,
2047                                         size_t count, loff_t *ppos) {
2048
2049         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2050         int pos = 0;
2051         char buf[200];
2052         const size_t bufsz = sizeof(buf);
2053
2054         if (!priv->bt_enable_flag) {
2055                 pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2056                 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2057         }
2058         pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
2059                 priv->bt_enable_flag);
2060         pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
2061                 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
2062         pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
2063                          "last traffic notif: %d\n",
2064                 priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2065         pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2066                          "kill_ack_mask: %x, kill_cts_mask: %x\n",
2067                 priv->bt_ch_announce, priv->kill_ack_mask,
2068                 priv->kill_cts_mask);
2069
2070         pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
2071         switch (priv->bt_traffic_load) {
2072         case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
2073                 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
2074                 break;
2075         case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
2076                 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
2077                 break;
2078         case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
2079                 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
2080                 break;
2081         case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
2082         default:
2083                 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
2084                 break;
2085         }
2086
2087         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2088 }
2089
2090 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
2091                                         char __user *user_buf,
2092                                         size_t count, loff_t *ppos)
2093 {
2094         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2095
2096         int pos = 0;
2097         char buf[40];
2098         const size_t bufsz = sizeof(buf);
2099
2100         if (priv->cfg->ht_params)
2101                 pos += scnprintf(buf + pos, bufsz - pos,
2102                          "use %s for aggregation\n",
2103                          (priv->hw_params.use_rts_for_aggregation) ?
2104                                 "rts/cts" : "cts-to-self");
2105         else
2106                 pos += scnprintf(buf + pos, bufsz - pos, "N/A");
2107
2108         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2109 }
2110
2111 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
2112                                         const char __user *user_buf,
2113                                         size_t count, loff_t *ppos) {
2114
2115         struct iwl_priv *priv = file->private_data;
2116         char buf[8];
2117         int buf_size;
2118         int rts;
2119
2120         if (!priv->cfg->ht_params)
2121                 return -EINVAL;
2122
2123         memset(buf, 0, sizeof(buf));
2124         buf_size = min(count, sizeof(buf) -  1);
2125         if (copy_from_user(buf, user_buf, buf_size))
2126                 return -EFAULT;
2127         if (sscanf(buf, "%d", &rts) != 1)
2128                 return -EINVAL;
2129         if (rts)
2130                 priv->hw_params.use_rts_for_aggregation = true;
2131         else
2132                 priv->hw_params.use_rts_for_aggregation = false;
2133         return count;
2134 }
2135
2136 static int iwl_cmd_echo_test(struct iwl_priv *priv)
2137 {
2138         int ret;
2139         struct iwl_host_cmd cmd = {
2140                 .id = REPLY_ECHO,
2141                 .len = { 0 },
2142         };
2143
2144         ret = iwl_dvm_send_cmd(priv, &cmd);
2145         if (ret)
2146                 IWL_ERR(priv, "echo testing fail: 0X%x\n", ret);
2147         else
2148                 IWL_DEBUG_INFO(priv, "echo testing pass\n");
2149         return ret;
2150 }
2151
2152 static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
2153                                         const char __user *user_buf,
2154                                         size_t count, loff_t *ppos)
2155 {
2156         struct iwl_priv *priv = file->private_data;
2157         char buf[8];
2158         int buf_size;
2159
2160         memset(buf, 0, sizeof(buf));
2161         buf_size = min(count, sizeof(buf) -  1);
2162         if (copy_from_user(buf, user_buf, buf_size))
2163                 return -EFAULT;
2164
2165         iwl_cmd_echo_test(priv);
2166         return count;
2167 }
2168
2169 #ifdef CONFIG_IWLWIFI_DEBUG
2170 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
2171                                          char __user *user_buf,
2172                                          size_t count, loff_t *ppos)
2173 {
2174         struct iwl_priv *priv = file->private_data;
2175         char *buf = NULL;
2176         ssize_t ret;
2177
2178         ret = iwl_dump_nic_event_log(priv, true, &buf);
2179         if (ret > 0)
2180                 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
2181         kfree(buf);
2182         return ret;
2183 }
2184
2185 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
2186                                         const char __user *user_buf,
2187                                         size_t count, loff_t *ppos)
2188 {
2189         struct iwl_priv *priv = file->private_data;
2190         u32 event_log_flag;
2191         char buf[8];
2192         int buf_size;
2193
2194         /* check that the interface is up */
2195         if (!iwl_is_ready(priv))
2196                 return -EAGAIN;
2197
2198         memset(buf, 0, sizeof(buf));
2199         buf_size = min(count, sizeof(buf) -  1);
2200         if (copy_from_user(buf, user_buf, buf_size))
2201                 return -EFAULT;
2202         if (sscanf(buf, "%u", &event_log_flag) != 1)
2203                 return -EFAULT;
2204         if (event_log_flag == 1)
2205                 iwl_dump_nic_event_log(priv, true, NULL);
2206
2207         return count;
2208 }
2209 #endif
2210
2211 static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file,
2212                                          char __user *user_buf,
2213                                          size_t count, loff_t *ppos)
2214 {
2215         struct iwl_priv *priv = file->private_data;
2216         char buf[120];
2217         int pos = 0;
2218         const size_t bufsz = sizeof(buf);
2219
2220         pos += scnprintf(buf + pos, bufsz - pos,
2221                          "Sensitivity calibrations %s\n",
2222                          (priv->calib_disabled &
2223                                         IWL_SENSITIVITY_CALIB_DISABLED) ?
2224                          "DISABLED" : "ENABLED");
2225         pos += scnprintf(buf + pos, bufsz - pos,
2226                          "Chain noise calibrations %s\n",
2227                          (priv->calib_disabled &
2228                                         IWL_CHAIN_NOISE_CALIB_DISABLED) ?
2229                          "DISABLED" : "ENABLED");
2230         pos += scnprintf(buf + pos, bufsz - pos,
2231                          "Tx power calibrations %s\n",
2232                          (priv->calib_disabled &
2233                                         IWL_TX_POWER_CALIB_DISABLED) ?
2234                          "DISABLED" : "ENABLED");
2235
2236         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2237 }
2238
2239 static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
2240                                               const char __user *user_buf,
2241                                               size_t count, loff_t *ppos)
2242 {
2243         struct iwl_priv *priv = file->private_data;
2244         char buf[8];
2245         u32 calib_disabled;
2246         int buf_size;
2247
2248         memset(buf, 0, sizeof(buf));
2249         buf_size = min(count, sizeof(buf) - 1);
2250         if (copy_from_user(buf, user_buf, buf_size))
2251                 return -EFAULT;
2252         if (sscanf(buf, "%x", &calib_disabled) != 1)
2253                 return -EFAULT;
2254
2255         priv->calib_disabled = calib_disabled;
2256
2257         return count;
2258 }
2259
2260 static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
2261                                           const char __user *user_buf,
2262                                           size_t count, loff_t *ppos)
2263 {
2264         struct iwl_priv *priv = file->private_data;
2265         bool fw_restart = iwlwifi_mod_params.fw_restart;
2266         int __maybe_unused ret;
2267
2268         iwlwifi_mod_params.fw_restart = true;
2269
2270         mutex_lock(&priv->mutex);
2271
2272         /* take the return value to make compiler happy - it will fail anyway */
2273         ret = iwl_dvm_send_cmd_pdu(priv, REPLY_ERROR, 0, 0, NULL);
2274
2275         mutex_unlock(&priv->mutex);
2276
2277         iwlwifi_mod_params.fw_restart = fw_restart;
2278
2279         return count;
2280 }
2281
2282 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2283 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2284 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2285 DEBUGFS_READ_FILE_OPS(sensitivity);
2286 DEBUGFS_READ_FILE_OPS(chain_noise);
2287 DEBUGFS_READ_FILE_OPS(power_save_status);
2288 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2289 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2290 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2291 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2292 DEBUGFS_READ_WRITE_FILE_OPS(rf_reset);
2293 DEBUGFS_READ_FILE_OPS(rxon_flags);
2294 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2295 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2296 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2297 DEBUGFS_READ_FILE_OPS(bt_traffic);
2298 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2299 DEBUGFS_READ_FILE_OPS(reply_tx_error);
2300 DEBUGFS_WRITE_FILE_OPS(echo_test);
2301 DEBUGFS_WRITE_FILE_OPS(fw_restart);
2302 #ifdef CONFIG_IWLWIFI_DEBUG
2303 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
2304 #endif
2305 DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
2306
2307 /*
2308  * Create the debugfs files and directories
2309  *
2310  */
2311 void iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
2312 {
2313         struct dentry *dir_data, *dir_rf, *dir_debug;
2314
2315         priv->debugfs_dir = dbgfs_dir;
2316
2317         dir_data = debugfs_create_dir("data", dbgfs_dir);
2318         dir_rf = debugfs_create_dir("rf", dbgfs_dir);
2319         dir_debug = debugfs_create_dir("debug", dbgfs_dir);
2320
2321         DEBUGFS_ADD_FILE(nvm, dir_data, 0400);
2322         DEBUGFS_ADD_FILE(sram, dir_data, 0600);
2323         DEBUGFS_ADD_FILE(wowlan_sram, dir_data, 0400);
2324         DEBUGFS_ADD_FILE(stations, dir_data, 0400);
2325         DEBUGFS_ADD_FILE(channels, dir_data, 0400);
2326         DEBUGFS_ADD_FILE(status, dir_data, 0400);
2327         DEBUGFS_ADD_FILE(rx_handlers, dir_data, 0600);
2328         DEBUGFS_ADD_FILE(qos, dir_data, 0400);
2329         DEBUGFS_ADD_FILE(sleep_level_override, dir_data, 0600);
2330         DEBUGFS_ADD_FILE(current_sleep_command, dir_data, 0400);
2331         DEBUGFS_ADD_FILE(thermal_throttling, dir_data, 0400);
2332         DEBUGFS_ADD_FILE(disable_ht40, dir_data, 0600);
2333         DEBUGFS_ADD_FILE(temperature, dir_data, 0400);
2334
2335         DEBUGFS_ADD_FILE(power_save_status, dir_debug, 0400);
2336         DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, 0200);
2337         DEBUGFS_ADD_FILE(missed_beacon, dir_debug, 0200);
2338         DEBUGFS_ADD_FILE(plcp_delta, dir_debug, 0600);
2339         DEBUGFS_ADD_FILE(rf_reset, dir_debug, 0600);
2340         DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, 0400);
2341         DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, 0400);
2342         DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, 0400);
2343         DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, 0200);
2344         DEBUGFS_ADD_FILE(protection_mode, dir_debug, 0600);
2345         DEBUGFS_ADD_FILE(sensitivity, dir_debug, 0400);
2346         DEBUGFS_ADD_FILE(chain_noise, dir_debug, 0400);
2347         DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, 0600);
2348         DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, 0400);
2349         DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, 0400);
2350         DEBUGFS_ADD_FILE(rxon_flags, dir_debug, 0200);
2351         DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, 0200);
2352         DEBUGFS_ADD_FILE(echo_test, dir_debug, 0200);
2353         DEBUGFS_ADD_FILE(fw_restart, dir_debug, 0200);
2354 #ifdef CONFIG_IWLWIFI_DEBUG
2355         DEBUGFS_ADD_FILE(log_event, dir_debug, 0600);
2356 #endif
2357
2358         if (iwl_advanced_bt_coexist(priv))
2359                 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, 0400);
2360
2361         /* Calibrations disabled/enabled status*/
2362         DEBUGFS_ADD_FILE(calib_disabled, dir_rf, 0600);
2363
2364         /*
2365          * Create a symlink with mac80211. This is not very robust, as it does
2366          * not remove the symlink created. The implicit assumption is that
2367          * when the opmode exits, mac80211 will also exit, and will remove
2368          * this symlink as part of its cleanup.
2369          */
2370         if (priv->mac80211_registered) {
2371                 char buf[100];
2372                 struct dentry *mac80211_dir, *dev_dir;
2373
2374                 dev_dir = dbgfs_dir->d_parent;
2375                 mac80211_dir = priv->hw->wiphy->debugfsdir;
2376
2377                 snprintf(buf, 100, "../../%pd2", dev_dir);
2378
2379                 debugfs_create_symlink("iwlwifi", mac80211_dir, buf);
2380         }
2381 }