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

   1 /******************************************************************************
   2  *
   3  * GPL LICENSE SUMMARY
   4  *
   5  * Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of version 2 of the GNU General Public License as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  19  * USA
  20  *
  21  * The full GNU General Public License is included in this distribution
  22  * in the file called LICENSE.GPL.
  23  *
  24  * Contact Information:
  25  *  Intel Linux Wireless <ilw@linux.intel.com>
  26  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  27  *****************************************************************************/
  28
  29 #include <linux/slab.h>
  30 #include <linux/kernel.h>
  31 #include <linux/module.h>
  32 #include <linux/debugfs.h>
  33
  34 #include <linux/ieee80211.h>
  35 #include <net/mac80211.h>
  36
  37
  38 #include "iwl-dev.h"
  39 #include "iwl-debug.h"
  40 #include "iwl-core.h"
  41 #include "iwl-io.h"
  42
  43 /* create and remove of files */
  44 #define DEBUGFS_ADD_FILE(name, parent, mode) do {                       \
  45         if (!debugfs_create_file(#name, mode, parent, priv,             \
  46                                  &iwl_dbgfs_##name##_ops))              \
  47                 goto err;                                               \
  48 } while (0)
  49
  50 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do {                        \
  51         struct dentry *__tmp;                                           \
  52         __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR,           \
  53                                     parent, ptr);                       \
  54         if (IS_ERR(__tmp) || !__tmp)                                    \
  55                 goto err;                                               \
  56 } while (0)
  57
  58 #define DEBUGFS_ADD_X32(name, parent, ptr) do {                         \
  59         struct dentry *__tmp;                                           \
  60         __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR,            \
  61                                    parent, ptr);                        \
  62         if (IS_ERR(__tmp) || !__tmp)                                    \
  63                 goto err;                                               \
  64 } while (0)
  65
  66 /* file operation */
  67 #define DEBUGFS_READ_FUNC(name)                                         \
  68 static ssize_t iwl_dbgfs_##name##_read(struct file *file,               \
  69                                         char __user *user_buf,          \
  70                                         size_t count, loff_t *ppos);
  71
  72 #define DEBUGFS_WRITE_FUNC(name)                                        \
  73 static ssize_t iwl_dbgfs_##name##_write(struct file *file,              \
  74                                         const char __user *user_buf,    \
  75                                         size_t count, loff_t *ppos);
  76
  77
  78 static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
  79 {
  80         file->private_data = inode->i_private;
  81         return 0;
  82 }
  83
  84 #define DEBUGFS_READ_FILE_OPS(name)                                     \
  85         DEBUGFS_READ_FUNC(name);                                        \
  86 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  87         .read = iwl_dbgfs_##name##_read,                                \
  88         .open = iwl_dbgfs_open_file_generic,                            \
  89         .llseek = generic_file_llseek,                                  \
  90 };
  91
  92 #define DEBUGFS_WRITE_FILE_OPS(name)                                    \
  93         DEBUGFS_WRITE_FUNC(name);                                       \
  94 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  95         .write = iwl_dbgfs_##name##_write,                              \
  96         .open = iwl_dbgfs_open_file_generic,                            \
  97         .llseek = generic_file_llseek,                                  \
  98 };
  99
 100
 101 #define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
 102         DEBUGFS_READ_FUNC(name);                                        \
 103         DEBUGFS_WRITE_FUNC(name);                                       \
 104 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
 105         .write = iwl_dbgfs_##name##_write,                              \
 106         .read = iwl_dbgfs_##name##_read,                                \
 107         .open = iwl_dbgfs_open_file_generic,                            \
 108         .llseek = generic_file_llseek,                                  \
 109 };
 110
 111 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
 112                                                 char __user *user_buf,
 113                                                 size_t count, loff_t *ppos) {
 114
 115         struct iwl_priv *priv = file->private_data;
 116         char *buf;
 117         int pos = 0;
 118
 119         int cnt;
 120         ssize_t ret;
 121         const size_t bufsz = 100 +
 122                 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
 123         buf = kzalloc(bufsz, GFP_KERNEL);
 124         if (!buf)
 125                 return -ENOMEM;
 126         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
 127         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
 128                 pos += scnprintf(buf + pos, bufsz - pos,
 129                                  "\t%25s\t\t: %u\n",
 130                                  get_mgmt_string(cnt),
 131                                  priv->tx_stats.mgmt[cnt]);
 132         }
 133         pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
 134         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
 135                 pos += scnprintf(buf + pos, bufsz - pos,
 136                                  "\t%25s\t\t: %u\n",
 137                                  get_ctrl_string(cnt),
 138                                  priv->tx_stats.ctrl[cnt]);
 139         }
 140         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
 141         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
 142                          priv->tx_stats.data_cnt);
 143         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
 144                          priv->tx_stats.data_bytes);
 145         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 146         kfree(buf);
 147         return ret;
 148 }
 149
 150 static ssize_t iwl_dbgfs_clear_traffic_statistics_write(struct file *file,
 151                                         const char __user *user_buf,
 152                                         size_t count, loff_t *ppos)
 153 {
 154         struct iwl_priv *priv = file->private_data;
 155         u32 clear_flag;
 156         char buf[8];
 157         int buf_size;
 158
 159         memset(buf, 0, sizeof(buf));
 160         buf_size = min(count, sizeof(buf) -  1);
 161         if (copy_from_user(buf, user_buf, buf_size))
 162                 return -EFAULT;
 163         if (sscanf(buf, "%x", &clear_flag) != 1)
 164                 return -EFAULT;
 165         iwl_clear_traffic_stats(priv);
 166
 167         return count;
 168 }
 169
 170 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
 171                                                 char __user *user_buf,
 172                                                 size_t count, loff_t *ppos) {
 173
 174         struct iwl_priv *priv = file->private_data;
 175         char *buf;
 176         int pos = 0;
 177         int cnt;
 178         ssize_t ret;
 179         const size_t bufsz = 100 +
 180                 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
 181         buf = kzalloc(bufsz, GFP_KERNEL);
 182         if (!buf)
 183                 return -ENOMEM;
 184
 185         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
 186         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
 187                 pos += scnprintf(buf + pos, bufsz - pos,
 188                                  "\t%25s\t\t: %u\n",
 189                                  get_mgmt_string(cnt),
 190                                  priv->rx_stats.mgmt[cnt]);
 191         }
 192         pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
 193         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
 194                 pos += scnprintf(buf + pos, bufsz - pos,
 195                                  "\t%25s\t\t: %u\n",
 196                                  get_ctrl_string(cnt),
 197                                  priv->rx_stats.ctrl[cnt]);
 198         }
 199         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
 200         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
 201                          priv->rx_stats.data_cnt);
 202         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
 203                          priv->rx_stats.data_bytes);
 204
 205         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 206         kfree(buf);
 207         return ret;
 208 }
 209
 210 static ssize_t iwl_dbgfs_sram_read(struct file *file,
 211                                         char __user *user_buf,
 212                                         size_t count, loff_t *ppos)
 213 {
 214         u32 val = 0;
 215         char *buf;
 216         ssize_t ret;
 217         int i = 0;
 218         bool device_format = false;
 219         int offset = 0;
 220         int len = 0;
 221         int pos = 0;
 222         int sram;
 223         struct iwl_priv *priv = file->private_data;
 224         size_t bufsz;
 225
 226         /* default is to dump the entire data segment */
 227         if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
 228                 priv->dbgfs_sram_offset = 0x800000;
 229                 if (priv->ucode_type == UCODE_INIT)
 230                         priv->dbgfs_sram_len = priv->ucode_init_data.len;
 231                 else
 232                         priv->dbgfs_sram_len = priv->ucode_data.len;
 233         }
 234         len = priv->dbgfs_sram_len;
 235
 236         if (len == -4) {
 237                 device_format = true;
 238                 len = 4;
 239         }
 240
 241         bufsz =  50 + len * 4;
 242         buf = kmalloc(bufsz, GFP_KERNEL);
 243         if (!buf)
 244                 return -ENOMEM;
 245
 246         pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
 247                          len);
 248         pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
 249                         priv->dbgfs_sram_offset);
 250
 251         /* adjust sram address since reads are only on even u32 boundaries */
 252         offset = priv->dbgfs_sram_offset & 0x3;
 253         sram = priv->dbgfs_sram_offset & ~0x3;
 254
 255         /* read the first u32 from sram */
 256         val = iwl_read_targ_mem(priv, sram);
 257
 258         for (; len; len--) {
 259                 /* put the address at the start of every line */
 260                 if (i == 0)
 261                         pos += scnprintf(buf + pos, bufsz - pos,
 262                                 "%08X: ", sram + offset);
 263
 264                 if (device_format)
 265                         pos += scnprintf(buf + pos, bufsz - pos,
 266                                 "%02x", (val >> (8 * (3 - offset))) & 0xff);
 267                 else
 268                         pos += scnprintf(buf + pos, bufsz - pos,
 269                                 "%02x ", (val >> (8 * offset)) & 0xff);
 270
 271                 /* if all bytes processed, read the next u32 from sram */
 272                 if (++offset == 4) {
 273                         sram += 4;
 274                         offset = 0;
 275                         val = iwl_read_targ_mem(priv, sram);
 276                 }
 277
 278                 /* put in extra spaces and split lines for human readability */
 279                 if (++i == 16) {
 280                         i = 0;
 281                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 282                 } else if (!(i & 7)) {
 283                         pos += scnprintf(buf + pos, bufsz - pos, "   ");
 284                 } else if (!(i & 3)) {
 285                         pos += scnprintf(buf + pos, bufsz - pos, " ");
 286                 }
 287         }
 288         if (i)
 289                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 290
 291         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 292         kfree(buf);
 293         return ret;
 294 }
 295
 296 static ssize_t iwl_dbgfs_sram_write(struct file *file,
 297                                         const char __user *user_buf,
 298                                         size_t count, loff_t *ppos)
 299 {
 300         struct iwl_priv *priv = file->private_data;
 301         char buf[64];
 302         int buf_size;
 303         u32 offset, len;
 304
 305         memset(buf, 0, sizeof(buf));
 306         buf_size = min(count, sizeof(buf) -  1);
 307         if (copy_from_user(buf, user_buf, buf_size))
 308                 return -EFAULT;
 309
 310         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 311                 priv->dbgfs_sram_offset = offset;
 312                 priv->dbgfs_sram_len = len;
 313         } else if (sscanf(buf, "%x", &offset) == 1) {
 314                 priv->dbgfs_sram_offset = offset;
 315                 priv->dbgfs_sram_len = -4;
 316         } else {
 317                 priv->dbgfs_sram_offset = 0;
 318                 priv->dbgfs_sram_len = 0;
 319         }
 320
 321         return count;
 322 }
 323
 324 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 325                                         size_t count, loff_t *ppos)
 326 {
 327         struct iwl_priv *priv = file->private_data;
 328         struct iwl_station_entry *station;
 329         int max_sta = priv->hw_params.max_stations;
 330         char *buf;
 331         int i, j, pos = 0;
 332         ssize_t ret;
 333         /* Add 30 for initial string */
 334         const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
 335
 336         buf = kmalloc(bufsz, GFP_KERNEL);
 337         if (!buf)
 338                 return -ENOMEM;
 339
 340         pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
 341                         priv->num_stations);
 342
 343         for (i = 0; i < max_sta; i++) {
 344                 station = &priv->stations[i];
 345                 if (!station->used)
 346                         continue;
 347                 pos += scnprintf(buf + pos, bufsz - pos,
 348                                  "station %d - addr: %pM, flags: %#x\n",
 349                                  i, station->sta.sta.addr,
 350                                  station->sta.station_flags_msk);
 351                 pos += scnprintf(buf + pos, bufsz - pos,
 352                                 "TID\tseq_num\ttxq_id\tframes\ttfds\t");
 353                 pos += scnprintf(buf + pos, bufsz - pos,
 354                                 "start_idx\tbitmap\t\t\trate_n_flags\n");
 355
 356                 for (j = 0; j < MAX_TID_COUNT; j++) {
 357                         pos += scnprintf(buf + pos, bufsz - pos,
 358                                 "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
 359                                 j, station->tid[j].seq_number,
 360                                 station->tid[j].agg.txq_id,
 361                                 station->tid[j].agg.frame_count,
 362                                 station->tid[j].tfds_in_queue,
 363                                 station->tid[j].agg.start_idx,
 364                                 station->tid[j].agg.bitmap,
 365                                 station->tid[j].agg.rate_n_flags);
 366
 367                         if (station->tid[j].agg.wait_for_ba)
 368                                 pos += scnprintf(buf + pos, bufsz - pos,
 369                                                  " - waitforba");
 370                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 371                 }
 372
 373                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 374         }
 375
 376         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 377         kfree(buf);
 378         return ret;
 379 }
 380
 381 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
 382                                        char __user *user_buf,
 383                                        size_t count,
 384                                        loff_t *ppos)
 385 {
 386         ssize_t ret;
 387         struct iwl_priv *priv = file->private_data;
 388         int pos = 0, ofs = 0, buf_size = 0;
 389         const u8 *ptr;
 390         char *buf;
 391         u16 eeprom_ver;
 392         size_t eeprom_len = priv->cfg->base_params->eeprom_size;
 393         buf_size = 4 * eeprom_len + 256;
 394
 395         if (eeprom_len % 16) {
 396                 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
 397                 return -ENODATA;
 398         }
 399
 400         ptr = priv->eeprom;
 401         if (!ptr) {
 402                 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
 403                 return -ENOMEM;
 404         }
 405
 406         /* 4 characters for byte 0xYY */
 407         buf = kzalloc(buf_size, GFP_KERNEL);
 408         if (!buf) {
 409                 IWL_ERR(priv, "Can not allocate Buffer\n");
 410                 return -ENOMEM;
 411         }
 412         eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
 413         pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
 414                         "version: 0x%x\n",
 415                         (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
 416                          ? "OTP" : "EEPROM", eeprom_ver);
 417         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
 418                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
 419                 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
 420                                    buf_size - pos, 0);
 421                 pos += strlen(buf + pos);
 422                 if (buf_size - pos > 0)
 423                         buf[pos++] = '\n';
 424         }
 425
 426         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 427         kfree(buf);
 428         return ret;
 429 }
 430
 431 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
 432                                          char __user *user_buf,
 433                                          size_t count, loff_t *ppos)
 434 {
 435         struct iwl_priv *priv = file->private_data;
 436         char *buf;
 437         int pos = 0;
 438         ssize_t ret = -ENOMEM;
 439
 440         ret = pos = priv->cfg->ops->lib->dump_nic_event_log(
 441                                         priv, true, &buf, true);
 442         if (buf) {
 443                 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 444                 kfree(buf);
 445         }
 446         return ret;
 447 }
 448
 449 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
 450                                         const char __user *user_buf,
 451                                         size_t count, loff_t *ppos)
 452 {
 453         struct iwl_priv *priv = file->private_data;
 454         u32 event_log_flag;
 455         char buf[8];
 456         int buf_size;
 457
 458         memset(buf, 0, sizeof(buf));
 459         buf_size = min(count, sizeof(buf) -  1);
 460         if (copy_from_user(buf, user_buf, buf_size))
 461                 return -EFAULT;
 462         if (sscanf(buf, "%d", &event_log_flag) != 1)
 463                 return -EFAULT;
 464         if (event_log_flag == 1)
 465                 priv->cfg->ops->lib->dump_nic_event_log(priv, true,
 466                                                         NULL, false);
 467
 468         return count;
 469 }
 470
 471
 472
 473 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 474                                        size_t count, loff_t *ppos)
 475 {
 476         struct iwl_priv *priv = file->private_data;
 477         struct ieee80211_channel *channels = NULL;
 478         const struct ieee80211_supported_band *supp_band = NULL;
 479         int pos = 0, i, bufsz = PAGE_SIZE;
 480         char *buf;
 481         ssize_t ret;
 482
 483         if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
 484                 return -EAGAIN;
 485
 486         buf = kzalloc(bufsz, GFP_KERNEL);
 487         if (!buf) {
 488                 IWL_ERR(priv, "Can not allocate Buffer\n");
 489                 return -ENOMEM;
 490         }
 491
 492         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
 493         if (supp_band) {
 494                 channels = supp_band->channels;
 495
 496                 pos += scnprintf(buf + pos, bufsz - pos,
 497                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
 498                                 supp_band->n_channels);
 499
 500                 for (i = 0; i < supp_band->n_channels; i++)
 501                         pos += scnprintf(buf + pos, bufsz - pos,
 502                                         "%d: %ddBm: BSS%s%s, %s.\n",
 503                                         channels[i].hw_value,
 504                                         channels[i].max_power,
 505                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 506                                         " (IEEE 802.11h required)" : "",
 507                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 508                                         || (channels[i].flags &
 509                                         IEEE80211_CHAN_RADAR)) ? "" :
 510                                         ", IBSS",
 511                                         channels[i].flags &
 512                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 513                                         "passive only" : "active/passive");
 514         }
 515         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
 516         if (supp_band) {
 517                 channels = supp_band->channels;
 518
 519                 pos += scnprintf(buf + pos, bufsz - pos,
 520                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
 521                                 supp_band->n_channels);
 522
 523                 for (i = 0; i < supp_band->n_channels; i++)
 524                         pos += scnprintf(buf + pos, bufsz - pos,
 525                                         "%d: %ddBm: BSS%s%s, %s.\n",
 526                                         channels[i].hw_value,
 527                                         channels[i].max_power,
 528                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 529                                         " (IEEE 802.11h required)" : "",
 530                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 531                                         || (channels[i].flags &
 532                                         IEEE80211_CHAN_RADAR)) ? "" :
 533                                         ", IBSS",
 534                                         channels[i].flags &
 535                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 536                                         "passive only" : "active/passive");
 537         }
 538         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 539         kfree(buf);
 540         return ret;
 541 }
 542
 543 static ssize_t iwl_dbgfs_status_read(struct file *file,
 544                                                 char __user *user_buf,
 545                                                 size_t count, loff_t *ppos) {
 546
 547         struct iwl_priv *priv = file->private_data;
 548         char buf[512];
 549         int pos = 0;
 550         const size_t bufsz = sizeof(buf);
 551
 552         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
 553                 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
 554         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
 555                 test_bit(STATUS_INT_ENABLED, &priv->status));
 556         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 557                 test_bit(STATUS_RF_KILL_HW, &priv->status));
 558         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 559                 test_bit(STATUS_CT_KILL, &priv->status));
 560         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
 561                 test_bit(STATUS_INIT, &priv->status));
 562         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 563                 test_bit(STATUS_ALIVE, &priv->status));
 564         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 565                 test_bit(STATUS_READY, &priv->status));
 566         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
 567                 test_bit(STATUS_TEMPERATURE, &priv->status));
 568         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
 569                 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
 570         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 571                 test_bit(STATUS_EXIT_PENDING, &priv->status));
 572         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 573                 test_bit(STATUS_STATISTICS, &priv->status));
 574         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 575                 test_bit(STATUS_SCANNING, &priv->status));
 576         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 577                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
 578         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 579                 test_bit(STATUS_SCAN_HW, &priv->status));
 580         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 581                 test_bit(STATUS_POWER_PMI, &priv->status));
 582         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 583                 test_bit(STATUS_FW_ERROR, &priv->status));
 584         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 585 }
 586
 587 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
 588                                         char __user *user_buf,
 589                                         size_t count, loff_t *ppos) {
 590
 591         struct iwl_priv *priv = file->private_data;
 592         int pos = 0;
 593         int cnt = 0;
 594         char *buf;
 595         int bufsz = 24 * 64; /* 24 items * 64 char per item */
 596         ssize_t ret;
 597
 598         buf = kzalloc(bufsz, GFP_KERNEL);
 599         if (!buf) {
 600                 IWL_ERR(priv, "Can not allocate Buffer\n");
 601                 return -ENOMEM;
 602         }
 603
 604         pos += scnprintf(buf + pos, bufsz - pos,
 605                         "Interrupt Statistics Report:\n");
 606
 607         pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
 608                 priv->isr_stats.hw);
 609         pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
 610                 priv->isr_stats.sw);
 611         if (priv->isr_stats.sw || priv->isr_stats.hw) {
 612                 pos += scnprintf(buf + pos, bufsz - pos,
 613                         "\tLast Restarting Code:  0x%X\n",
 614                         priv->isr_stats.err_code);
 615         }
 616 #ifdef CONFIG_IWLWIFI_DEBUG
 617         pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
 618                 priv->isr_stats.sch);
 619         pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
 620                 priv->isr_stats.alive);
 621 #endif
 622         pos += scnprintf(buf + pos, bufsz - pos,
 623                 "HW RF KILL switch toggled:\t %u\n",
 624                 priv->isr_stats.rfkill);
 625
 626         pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
 627                 priv->isr_stats.ctkill);
 628
 629         pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
 630                 priv->isr_stats.wakeup);
 631
 632         pos += scnprintf(buf + pos, bufsz - pos,
 633                 "Rx command responses:\t\t %u\n",
 634                 priv->isr_stats.rx);
 635         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 636                 if (priv->isr_stats.rx_handlers[cnt] > 0)
 637                         pos += scnprintf(buf + pos, bufsz - pos,
 638                                 "\tRx handler[%36s]:\t\t %u\n",
 639                                 get_cmd_string(cnt),
 640                                 priv->isr_stats.rx_handlers[cnt]);
 641         }
 642
 643         pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
 644                 priv->isr_stats.tx);
 645
 646         pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
 647                 priv->isr_stats.unhandled);
 648
 649         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 650         kfree(buf);
 651         return ret;
 652 }
 653
 654 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
 655                                          const char __user *user_buf,
 656                                          size_t count, loff_t *ppos)
 657 {
 658         struct iwl_priv *priv = file->private_data;
 659         char buf[8];
 660         int buf_size;
 661         u32 reset_flag;
 662
 663         memset(buf, 0, sizeof(buf));
 664         buf_size = min(count, sizeof(buf) -  1);
 665         if (copy_from_user(buf, user_buf, buf_size))
 666                 return -EFAULT;
 667         if (sscanf(buf, "%x", &reset_flag) != 1)
 668                 return -EFAULT;
 669         if (reset_flag == 0)
 670                 iwl_clear_isr_stats(priv);
 671
 672         return count;
 673 }
 674
 675 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 676                                        size_t count, loff_t *ppos)
 677 {
 678         struct iwl_priv *priv = file->private_data;
 679         struct iwl_rxon_context *ctx;
 680         int pos = 0, i;
 681         char buf[256 * NUM_IWL_RXON_CTX];
 682         const size_t bufsz = sizeof(buf);
 683
 684         for_each_context(priv, ctx) {
 685                 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
 686                                  ctx->ctxid);
 687                 for (i = 0; i < AC_NUM; i++) {
 688                         pos += scnprintf(buf + pos, bufsz - pos,
 689                                 "\tcw_min\tcw_max\taifsn\ttxop\n");
 690                         pos += scnprintf(buf + pos, bufsz - pos,
 691                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
 692                                 ctx->qos_data.def_qos_parm.ac[i].cw_min,
 693                                 ctx->qos_data.def_qos_parm.ac[i].cw_max,
 694                                 ctx->qos_data.def_qos_parm.ac[i].aifsn,
 695                                 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
 696                 }
 697                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 698         }
 699         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 700 }
 701
 702 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 703                                 char __user *user_buf,
 704                                 size_t count, loff_t *ppos)
 705 {
 706         struct iwl_priv *priv = file->private_data;
 707         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 708         struct iwl_tt_restriction *restriction;
 709         char buf[100];
 710         int pos = 0;
 711         const size_t bufsz = sizeof(buf);
 712
 713         pos += scnprintf(buf + pos, bufsz - pos,
 714                         "Thermal Throttling Mode: %s\n",
 715                         tt->advanced_tt ? "Advance" : "Legacy");
 716         pos += scnprintf(buf + pos, bufsz - pos,
 717                         "Thermal Throttling State: %d\n",
 718                         tt->state);
 719         if (tt->advanced_tt) {
 720                 restriction = tt->restriction + tt->state;
 721                 pos += scnprintf(buf + pos, bufsz - pos,
 722                                 "Tx mode: %d\n",
 723                                 restriction->tx_stream);
 724                 pos += scnprintf(buf + pos, bufsz - pos,
 725                                 "Rx mode: %d\n",
 726                                 restriction->rx_stream);
 727                 pos += scnprintf(buf + pos, bufsz - pos,
 728                                 "HT mode: %d\n",
 729                                 restriction->is_ht);
 730         }
 731         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 732 }
 733
 734 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 735                                          const char __user *user_buf,
 736                                          size_t count, loff_t *ppos)
 737 {
 738         struct iwl_priv *priv = file->private_data;
 739         char buf[8];
 740         int buf_size;
 741         int ht40;
 742
 743         memset(buf, 0, sizeof(buf));
 744         buf_size = min(count, sizeof(buf) -  1);
 745         if (copy_from_user(buf, user_buf, buf_size))
 746                 return -EFAULT;
 747         if (sscanf(buf, "%d", &ht40) != 1)
 748                 return -EFAULT;
 749         if (!iwl_is_any_associated(priv))
 750                 priv->disable_ht40 = ht40 ? true : false;
 751         else {
 752                 IWL_ERR(priv, "Sta associated with AP - "
 753                         "Change to 40MHz channel support is not allowed\n");
 754                 return -EINVAL;
 755         }
 756
 757         return count;
 758 }
 759
 760 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 761                                          char __user *user_buf,
 762                                          size_t count, loff_t *ppos)
 763 {
 764         struct iwl_priv *priv = file->private_data;
 765         char buf[100];
 766         int pos = 0;
 767         const size_t bufsz = sizeof(buf);
 768
 769         pos += scnprintf(buf + pos, bufsz - pos,
 770                         "11n 40MHz Mode: %s\n",
 771                         priv->disable_ht40 ? "Disabled" : "Enabled");
 772         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 773 }
 774
 775 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 776                                                     const char __user *user_buf,
 777                                                     size_t count, loff_t *ppos)
 778 {
 779         struct iwl_priv *priv = file->private_data;
 780         char buf[8];
 781         int buf_size;
 782         int value;
 783
 784         memset(buf, 0, sizeof(buf));
 785         buf_size = min(count, sizeof(buf) -  1);
 786         if (copy_from_user(buf, user_buf, buf_size))
 787                 return -EFAULT;
 788
 789         if (sscanf(buf, "%d", &value) != 1)
 790                 return -EINVAL;
 791
 792         /*
 793          * Our users expect 0 to be "CAM", but 0 isn't actually
 794          * valid here. However, let's not confuse them and present
 795          * IWL_POWER_INDEX_1 as "1", not "0".
 796          */
 797         if (value == 0)
 798                 return -EINVAL;
 799         else if (value > 0)
 800                 value -= 1;
 801
 802         if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 803                 return -EINVAL;
 804
 805         if (!iwl_is_ready_rf(priv))
 806                 return -EAGAIN;
 807
 808         priv->power_data.debug_sleep_level_override = value;
 809
 810         mutex_lock(&priv->mutex);
 811         iwl_power_update_mode(priv, true);
 812         mutex_unlock(&priv->mutex);
 813
 814         return count;
 815 }
 816
 817 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 818                                                    char __user *user_buf,
 819                                                    size_t count, loff_t *ppos)
 820 {
 821         struct iwl_priv *priv = file->private_data;
 822         char buf[10];
 823         int pos, value;
 824         const size_t bufsz = sizeof(buf);
 825
 826         /* see the write function */
 827         value = priv->power_data.debug_sleep_level_override;
 828         if (value >= 0)
 829                 value += 1;
 830
 831         pos = scnprintf(buf, bufsz, "%d\n", value);
 832         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 833 }
 834
 835 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 836                                                     char __user *user_buf,
 837                                                     size_t count, loff_t *ppos)
 838 {
 839         struct iwl_priv *priv = file->private_data;
 840         char buf[200];
 841         int pos = 0, i;
 842         const size_t bufsz = sizeof(buf);
 843         struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 844
 845         pos += scnprintf(buf + pos, bufsz - pos,
 846                          "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 847         pos += scnprintf(buf + pos, bufsz - pos,
 848                          "RX/TX timeout: %d/%d usec\n",
 849                          le32_to_cpu(cmd->rx_data_timeout),
 850                          le32_to_cpu(cmd->tx_data_timeout));
 851         for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 852                 pos += scnprintf(buf + pos, bufsz - pos,
 853                                  "sleep_interval[%d]: %d\n", i,
 854                                  le32_to_cpu(cmd->sleep_interval[i]));
 855
 856         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 857 }
 858
 859 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 860 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
 861 DEBUGFS_READ_FILE_OPS(nvm);
 862 DEBUGFS_READ_FILE_OPS(stations);
 863 DEBUGFS_READ_FILE_OPS(channels);
 864 DEBUGFS_READ_FILE_OPS(status);
 865 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 866 DEBUGFS_READ_FILE_OPS(qos);
 867 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 868 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 869 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 870 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 871
 872 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
 873                                          char __user *user_buf,
 874                                          size_t count, loff_t *ppos)
 875 {
 876         struct iwl_priv *priv = file->private_data;
 877         int pos = 0, ofs = 0;
 878         int cnt = 0, entry;
 879         struct iwl_tx_queue *txq;
 880         struct iwl_queue *q;
 881         struct iwl_rx_queue *rxq = &priv->rxq;
 882         char *buf;
 883         int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
 884                 (priv->cfg->base_params->num_of_queues * 32 * 8) + 400;
 885         const u8 *ptr;
 886         ssize_t ret;
 887
 888         if (!priv->txq) {
 889                 IWL_ERR(priv, "txq not ready\n");
 890                 return -EAGAIN;
 891         }
 892         buf = kzalloc(bufsz, GFP_KERNEL);
 893         if (!buf) {
 894                 IWL_ERR(priv, "Can not allocate buffer\n");
 895                 return -ENOMEM;
 896         }
 897         pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
 898         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 899                 txq = &priv->txq[cnt];
 900                 q = &txq->q;
 901                 pos += scnprintf(buf + pos, bufsz - pos,
 902                                 "q[%d]: read_ptr: %u, write_ptr: %u\n",
 903                                 cnt, q->read_ptr, q->write_ptr);
 904         }
 905         if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
 906                 ptr = priv->tx_traffic;
 907                 pos += scnprintf(buf + pos, bufsz - pos,
 908                                 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
 909                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 910                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 911                              entry++,  ofs += 16) {
 912                                 pos += scnprintf(buf + pos, bufsz - pos,
 913                                                 "0x%.4x ", ofs);
 914                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 915                                                    buf + pos, bufsz - pos, 0);
 916                                 pos += strlen(buf + pos);
 917                                 if (bufsz - pos > 0)
 918                                         buf[pos++] = '\n';
 919                         }
 920                 }
 921         }
 922
 923         pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
 924         pos += scnprintf(buf + pos, bufsz - pos,
 925                         "read: %u, write: %u\n",
 926                          rxq->read, rxq->write);
 927
 928         if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
 929                 ptr = priv->rx_traffic;
 930                 pos += scnprintf(buf + pos, bufsz - pos,
 931                                 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
 932                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 933                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 934                              entry++,  ofs += 16) {
 935                                 pos += scnprintf(buf + pos, bufsz - pos,
 936                                                 "0x%.4x ", ofs);
 937                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 938                                                    buf + pos, bufsz - pos, 0);
 939                                 pos += strlen(buf + pos);
 940                                 if (bufsz - pos > 0)
 941                                         buf[pos++] = '\n';
 942                         }
 943                 }
 944         }
 945
 946         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 947         kfree(buf);
 948         return ret;
 949 }
 950
 951 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
 952                                          const char __user *user_buf,
 953                                          size_t count, loff_t *ppos)
 954 {
 955         struct iwl_priv *priv = file->private_data;
 956         char buf[8];
 957         int buf_size;
 958         int traffic_log;
 959
 960         memset(buf, 0, sizeof(buf));
 961         buf_size = min(count, sizeof(buf) -  1);
 962         if (copy_from_user(buf, user_buf, buf_size))
 963                 return -EFAULT;
 964         if (sscanf(buf, "%d", &traffic_log) != 1)
 965                 return -EFAULT;
 966         if (traffic_log == 0)
 967                 iwl_reset_traffic_log(priv);
 968
 969         return count;
 970 }
 971
 972 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
 973                                                 char __user *user_buf,
 974                                                 size_t count, loff_t *ppos) {
 975
 976         struct iwl_priv *priv = file->private_data;
 977         struct iwl_tx_queue *txq;
 978         struct iwl_queue *q;
 979         char *buf;
 980         int pos = 0;
 981         int cnt;
 982         int ret;
 983         const size_t bufsz = sizeof(char) * 64 *
 984                                 priv->cfg->base_params->num_of_queues;
 985
 986         if (!priv->txq) {
 987                 IWL_ERR(priv, "txq not ready\n");
 988                 return -EAGAIN;
 989         }
 990         buf = kzalloc(bufsz, GFP_KERNEL);
 991         if (!buf)
 992                 return -ENOMEM;
 993
 994         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 995                 txq = &priv->txq[cnt];
 996                 q = &txq->q;
 997                 pos += scnprintf(buf + pos, bufsz - pos,
 998                                 "hwq %.2d: read=%u write=%u stop=%d"
 999                                 " swq_id=%#.2x (ac %d/hwq %d)\n",
1000                                 cnt, q->read_ptr, q->write_ptr,
1001                                 !!test_bit(cnt, priv->queue_stopped),
1002                                 txq->swq_id, txq->swq_id & 3,
1003                                 (txq->swq_id >> 2) & 0x1f);
1004                 if (cnt >= 4)
1005                         continue;
1006                 /* for the ACs, display the stop count too */
1007                 pos += scnprintf(buf + pos, bufsz - pos,
1008                                 "        stop-count: %d\n",
1009                                 atomic_read(&priv->queue_stop_count[cnt]));
1010         }
1011         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1012         kfree(buf);
1013         return ret;
1014 }
1015
1016 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
1017                                                 char __user *user_buf,
1018                                                 size_t count, loff_t *ppos) {
1019
1020         struct iwl_priv *priv = file->private_data;
1021         struct iwl_rx_queue *rxq = &priv->rxq;
1022         char buf[256];
1023         int pos = 0;
1024         const size_t bufsz = sizeof(buf);
1025
1026         pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
1027                                                 rxq->read);
1028         pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
1029                                                 rxq->write);
1030         pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1031                                                 rxq->free_count);
1032         if (rxq->rb_stts) {
1033                 pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1034                          le16_to_cpu(rxq->rb_stts->closed_rb_num) &  0x0FFF);
1035         } else {
1036                 pos += scnprintf(buf + pos, bufsz - pos,
1037                                         "closed_rb_num: Not Allocated\n");
1038         }
1039         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1040 }
1041
1042 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1043                                         char __user *user_buf,
1044                                         size_t count, loff_t *ppos)
1045 {
1046         struct iwl_priv *priv = file->private_data;
1047         return priv->cfg->ops->lib->debugfs_ops.rx_stats_read(file,
1048                         user_buf, count, ppos);
1049 }
1050
1051 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1052                                         char __user *user_buf,
1053                                         size_t count, loff_t *ppos)
1054 {
1055         struct iwl_priv *priv = file->private_data;
1056         return priv->cfg->ops->lib->debugfs_ops.tx_stats_read(file,
1057                         user_buf, count, ppos);
1058 }
1059
1060 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1061                                         char __user *user_buf,
1062                                         size_t count, loff_t *ppos)
1063 {
1064         struct iwl_priv *priv = file->private_data;
1065         return priv->cfg->ops->lib->debugfs_ops.general_stats_read(file,
1066                         user_buf, count, ppos);
1067 }
1068
1069 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1070                                         char __user *user_buf,
1071                                         size_t count, loff_t *ppos) {
1072
1073         struct iwl_priv *priv = file->private_data;
1074         int pos = 0;
1075         int cnt = 0;
1076         char *buf;
1077         int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1078         ssize_t ret;
1079         struct iwl_sensitivity_data *data;
1080
1081         data = &priv->sensitivity_data;
1082         buf = kzalloc(bufsz, GFP_KERNEL);
1083         if (!buf) {
1084                 IWL_ERR(priv, "Can not allocate Buffer\n");
1085                 return -ENOMEM;
1086         }
1087
1088         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1089                         data->auto_corr_ofdm);
1090         pos += scnprintf(buf + pos, bufsz - pos,
1091                         "auto_corr_ofdm_mrc:\t\t %u\n",
1092                         data->auto_corr_ofdm_mrc);
1093         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1094                         data->auto_corr_ofdm_x1);
1095         pos += scnprintf(buf + pos, bufsz - pos,
1096                         "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1097                         data->auto_corr_ofdm_mrc_x1);
1098         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1099                         data->auto_corr_cck);
1100         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1101                         data->auto_corr_cck_mrc);
1102         pos += scnprintf(buf + pos, bufsz - pos,
1103                         "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1104                         data->last_bad_plcp_cnt_ofdm);
1105         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1106                         data->last_fa_cnt_ofdm);
1107         pos += scnprintf(buf + pos, bufsz - pos,
1108                         "last_bad_plcp_cnt_cck:\t\t %u\n",
1109                         data->last_bad_plcp_cnt_cck);
1110         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1111                         data->last_fa_cnt_cck);
1112         pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1113                         data->nrg_curr_state);
1114         pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1115                         data->nrg_prev_state);
1116         pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1117         for (cnt = 0; cnt < 10; cnt++) {
1118                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1119                                 data->nrg_value[cnt]);
1120         }
1121         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1122         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1123         for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1124                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1125                                 data->nrg_silence_rssi[cnt]);
1126         }
1127         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1128         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1129                         data->nrg_silence_ref);
1130         pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1131                         data->nrg_energy_idx);
1132         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1133                         data->nrg_silence_idx);
1134         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1135                         data->nrg_th_cck);
1136         pos += scnprintf(buf + pos, bufsz - pos,
1137                         "nrg_auto_corr_silence_diff:\t %u\n",
1138                         data->nrg_auto_corr_silence_diff);
1139         pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1140                         data->num_in_cck_no_fa);
1141         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1142                         data->nrg_th_ofdm);
1143
1144         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1145         kfree(buf);
1146         return ret;
1147 }
1148
1149
1150 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1151                                         char __user *user_buf,
1152                                         size_t count, loff_t *ppos) {
1153
1154         struct iwl_priv *priv = file->private_data;
1155         int pos = 0;
1156         int cnt = 0;
1157         char *buf;
1158         int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1159         ssize_t ret;
1160         struct iwl_chain_noise_data *data;
1161
1162         data = &priv->chain_noise_data;
1163         buf = kzalloc(bufsz, GFP_KERNEL);
1164         if (!buf) {
1165                 IWL_ERR(priv, "Can not allocate Buffer\n");
1166                 return -ENOMEM;
1167         }
1168
1169         pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1170                         data->active_chains);
1171         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1172                         data->chain_noise_a);
1173         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1174                         data->chain_noise_b);
1175         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1176                         data->chain_noise_c);
1177         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1178                         data->chain_signal_a);
1179         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1180                         data->chain_signal_b);
1181         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1182                         data->chain_signal_c);
1183         pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1184                         data->beacon_count);
1185
1186         pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1187         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1188                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1189                                 data->disconn_array[cnt]);
1190         }
1191         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1192         pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1193         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1194                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1195                                 data->delta_gain_code[cnt]);
1196         }
1197         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1198         pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1199                         data->radio_write);
1200         pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1201                         data->state);
1202
1203         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1204         kfree(buf);
1205         return ret;
1206 }
1207
1208 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1209                                                     char __user *user_buf,
1210                                                     size_t count, loff_t *ppos)
1211 {
1212         struct iwl_priv *priv = file->private_data;
1213         char buf[60];
1214         int pos = 0;
1215         const size_t bufsz = sizeof(buf);
1216         u32 pwrsave_status;
1217
1218         pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
1219                         CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1220
1221         pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1222         pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1223                 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1224                 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1225                 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1226                 "error");
1227
1228         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1229 }
1230
1231 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1232                                          const char __user *user_buf,
1233                                          size_t count, loff_t *ppos)
1234 {
1235         struct iwl_priv *priv = file->private_data;
1236         char buf[8];
1237         int buf_size;
1238         int clear;
1239
1240         memset(buf, 0, sizeof(buf));
1241         buf_size = min(count, sizeof(buf) -  1);
1242         if (copy_from_user(buf, user_buf, buf_size))
1243                 return -EFAULT;
1244         if (sscanf(buf, "%d", &clear) != 1)
1245                 return -EFAULT;
1246
1247         /* make request to uCode to retrieve statistics information */
1248         mutex_lock(&priv->mutex);
1249         iwl_send_statistics_request(priv, CMD_SYNC, true);
1250         mutex_unlock(&priv->mutex);
1251
1252         return count;
1253 }
1254
1255 static ssize_t iwl_dbgfs_csr_write(struct file *file,
1256                                          const char __user *user_buf,
1257                                          size_t count, loff_t *ppos)
1258 {
1259         struct iwl_priv *priv = file->private_data;
1260         char buf[8];
1261         int buf_size;
1262         int csr;
1263
1264         memset(buf, 0, sizeof(buf));
1265         buf_size = min(count, sizeof(buf) -  1);
1266         if (copy_from_user(buf, user_buf, buf_size))
1267                 return -EFAULT;
1268         if (sscanf(buf, "%d", &csr) != 1)
1269                 return -EFAULT;
1270
1271         if (priv->cfg->ops->lib->dump_csr)
1272                 priv->cfg->ops->lib->dump_csr(priv);
1273
1274         return count;
1275 }
1276
1277 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1278                                         char __user *user_buf,
1279                                         size_t count, loff_t *ppos) {
1280
1281         struct iwl_priv *priv = file->private_data;
1282         int pos = 0;
1283         char buf[128];
1284         const size_t bufsz = sizeof(buf);
1285
1286         pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1287                         priv->event_log.ucode_trace ? "On" : "Off");
1288         pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1289                         priv->event_log.non_wraps_count);
1290         pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1291                         priv->event_log.wraps_once_count);
1292         pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1293                         priv->event_log.wraps_more_count);
1294
1295         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1296 }
1297
1298 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1299                                          const char __user *user_buf,
1300                                          size_t count, loff_t *ppos)
1301 {
1302         struct iwl_priv *priv = file->private_data;
1303         char buf[8];
1304         int buf_size;
1305         int trace;
1306
1307         memset(buf, 0, sizeof(buf));
1308         buf_size = min(count, sizeof(buf) -  1);
1309         if (copy_from_user(buf, user_buf, buf_size))
1310                 return -EFAULT;
1311         if (sscanf(buf, "%d", &trace) != 1)
1312                 return -EFAULT;
1313
1314         if (trace) {
1315                 priv->event_log.ucode_trace = true;
1316                 /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
1317                 mod_timer(&priv->ucode_trace,
1318                         jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
1319         } else {
1320                 priv->event_log.ucode_trace = false;
1321                 del_timer_sync(&priv->ucode_trace);
1322         }
1323
1324         return count;
1325 }
1326
1327 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1328                                          char __user *user_buf,
1329                                          size_t count, loff_t *ppos) {
1330
1331         struct iwl_priv *priv = file->private_data;
1332         int len = 0;
1333         char buf[20];
1334
1335         len = sprintf(buf, "0x%04X\n",
1336                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1337         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1338 }
1339
1340 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1341                                                 char __user *user_buf,
1342                                                 size_t count, loff_t *ppos) {
1343
1344         struct iwl_priv *priv = file->private_data;
1345         int len = 0;
1346         char buf[20];
1347
1348         len = sprintf(buf, "0x%04X\n",
1349                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1350         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1351 }
1352
1353 static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
1354                                          char __user *user_buf,
1355                                          size_t count, loff_t *ppos)
1356 {
1357         struct iwl_priv *priv = file->private_data;
1358         char *buf;
1359         int pos = 0;
1360         ssize_t ret = -EFAULT;
1361
1362         if (priv->cfg->ops->lib->dump_fh) {
1363                 ret = pos = priv->cfg->ops->lib->dump_fh(priv, &buf, true);
1364                 if (buf) {
1365                         ret = simple_read_from_buffer(user_buf,
1366                                                       count, ppos, buf, pos);
1367                         kfree(buf);
1368                 }
1369         }
1370
1371         return ret;
1372 }
1373
1374 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1375                                         char __user *user_buf,
1376                                         size_t count, loff_t *ppos) {
1377
1378         struct iwl_priv *priv = file->private_data;
1379         int pos = 0;
1380         char buf[12];
1381         const size_t bufsz = sizeof(buf);
1382
1383         pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1384                         priv->missed_beacon_threshold);
1385
1386         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1387 }
1388
1389 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1390                                          const char __user *user_buf,
1391                                          size_t count, loff_t *ppos)
1392 {
1393         struct iwl_priv *priv = file->private_data;
1394         char buf[8];
1395         int buf_size;
1396         int missed;
1397
1398         memset(buf, 0, sizeof(buf));
1399         buf_size = min(count, sizeof(buf) -  1);
1400         if (copy_from_user(buf, user_buf, buf_size))
1401                 return -EFAULT;
1402         if (sscanf(buf, "%d", &missed) != 1)
1403                 return -EINVAL;
1404
1405         if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1406             missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1407                 priv->missed_beacon_threshold =
1408                         IWL_MISSED_BEACON_THRESHOLD_DEF;
1409         else
1410                 priv->missed_beacon_threshold = missed;
1411
1412         return count;
1413 }
1414
1415 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1416                                         char __user *user_buf,
1417                                         size_t count, loff_t *ppos) {
1418
1419         struct iwl_priv *priv = file->private_data;
1420         int pos = 0;
1421         char buf[12];
1422         const size_t bufsz = sizeof(buf);
1423
1424         pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1425                         priv->cfg->base_params->plcp_delta_threshold);
1426
1427         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1428 }
1429
1430 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1431                                         const char __user *user_buf,
1432                                         size_t count, loff_t *ppos) {
1433
1434         struct iwl_priv *priv = file->private_data;
1435         char buf[8];
1436         int buf_size;
1437         int plcp;
1438
1439         memset(buf, 0, sizeof(buf));
1440         buf_size = min(count, sizeof(buf) -  1);
1441         if (copy_from_user(buf, user_buf, buf_size))
1442                 return -EFAULT;
1443         if (sscanf(buf, "%d", &plcp) != 1)
1444                 return -EINVAL;
1445         if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1446                 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1447                 priv->cfg->base_params->plcp_delta_threshold =
1448                         IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
1449         else
1450                 priv->cfg->base_params->plcp_delta_threshold = plcp;
1451         return count;
1452 }
1453
1454 static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
1455                                         char __user *user_buf,
1456                                         size_t count, loff_t *ppos) {
1457
1458         struct iwl_priv *priv = file->private_data;
1459         int i, pos = 0;
1460         char buf[300];
1461         const size_t bufsz = sizeof(buf);
1462         struct iwl_force_reset *force_reset;
1463
1464         for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
1465                 force_reset = &priv->force_reset[i];
1466                 pos += scnprintf(buf + pos, bufsz - pos,
1467                                 "Force reset method %d\n", i);
1468                 pos += scnprintf(buf + pos, bufsz - pos,
1469                                 "\tnumber of reset request: %d\n",
1470                                 force_reset->reset_request_count);
1471                 pos += scnprintf(buf + pos, bufsz - pos,
1472                                 "\tnumber of reset request success: %d\n",
1473                                 force_reset->reset_success_count);
1474                 pos += scnprintf(buf + pos, bufsz - pos,
1475                                 "\tnumber of reset request reject: %d\n",
1476                                 force_reset->reset_reject_count);
1477                 pos += scnprintf(buf + pos, bufsz - pos,
1478                                 "\treset duration: %lu\n",
1479                                 force_reset->reset_duration);
1480         }
1481         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1482 }
1483
1484 static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
1485                                         const char __user *user_buf,
1486                                         size_t count, loff_t *ppos) {
1487
1488         struct iwl_priv *priv = file->private_data;
1489         char buf[8];
1490         int buf_size;
1491         int reset, ret;
1492
1493         memset(buf, 0, sizeof(buf));
1494         buf_size = min(count, sizeof(buf) -  1);
1495         if (copy_from_user(buf, user_buf, buf_size))
1496                 return -EFAULT;
1497         if (sscanf(buf, "%d", &reset) != 1)
1498                 return -EINVAL;
1499         switch (reset) {
1500         case IWL_RF_RESET:
1501         case IWL_FW_RESET:
1502                 ret = iwl_force_reset(priv, reset, true);
1503                 break;
1504         default:
1505                 return -EINVAL;
1506         }
1507         return ret ? ret : count;
1508 }
1509
1510 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
1511                                         const char __user *user_buf,
1512                                         size_t count, loff_t *ppos) {
1513
1514         struct iwl_priv *priv = file->private_data;
1515         char buf[8];
1516         int buf_size;
1517         int flush;
1518
1519         memset(buf, 0, sizeof(buf));
1520         buf_size = min(count, sizeof(buf) -  1);
1521         if (copy_from_user(buf, user_buf, buf_size))
1522                 return -EFAULT;
1523         if (sscanf(buf, "%d", &flush) != 1)
1524                 return -EINVAL;
1525
1526         if (iwl_is_rfkill(priv))
1527                 return -EFAULT;
1528
1529         priv->cfg->ops->lib->dev_txfifo_flush(priv, IWL_DROP_ALL);
1530
1531         return count;
1532 }
1533
1534 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1535                                         char __user *user_buf,
1536                                         size_t count, loff_t *ppos)
1537 {
1538         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1539
1540         return priv->cfg->ops->lib->debugfs_ops.bt_stats_read(file,
1541                         user_buf, count, ppos);
1542 }
1543
1544 static ssize_t iwl_dbgfs_wd_timeout_write(struct file *file,
1545                                         const char __user *user_buf,
1546                                         size_t count, loff_t *ppos) {
1547
1548         struct iwl_priv *priv = file->private_data;
1549         char buf[8];
1550         int buf_size;
1551         int timeout;
1552
1553         memset(buf, 0, sizeof(buf));
1554         buf_size = min(count, sizeof(buf) -  1);
1555         if (copy_from_user(buf, user_buf, buf_size))
1556                 return -EFAULT;
1557         if (sscanf(buf, "%d", &timeout) != 1)
1558                 return -EINVAL;
1559         if (timeout < 0 || timeout > IWL_MAX_WD_TIMEOUT)
1560                 timeout = IWL_DEF_WD_TIMEOUT;
1561
1562         priv->cfg->base_params->wd_timeout = timeout;
1563         iwl_setup_watchdog(priv);
1564         return count;
1565 }
1566
1567 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
1568                                         char __user *user_buf,
1569                                         size_t count, loff_t *ppos) {
1570
1571         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1572         int pos = 0;
1573         char buf[200];
1574         const size_t bufsz = sizeof(buf);
1575         ssize_t ret;
1576
1577         if (!priv->bt_enable_flag) {
1578                 pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
1579                 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1580                 return ret;
1581         }
1582         pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
1583                 priv->bt_enable_flag);
1584         pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
1585                 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
1586         pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
1587                          "last traffic notif: %d\n",
1588                 priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
1589         pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
1590                          "kill_ack_mask: %x, kill_cts_mask: %x\n",
1591                 priv->bt_ch_announce, priv->kill_ack_mask,
1592                 priv->kill_cts_mask);
1593
1594         pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
1595         switch (priv->bt_traffic_load) {
1596         case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
1597                 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
1598                 break;
1599         case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
1600                 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
1601                 break;
1602         case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
1603                 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
1604                 break;
1605         case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
1606         default:
1607                 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
1608                 break;
1609         }
1610
1611         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1612         return ret;
1613 }
1614
1615 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
1616                                         char __user *user_buf,
1617                                         size_t count, loff_t *ppos)
1618 {
1619         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1620
1621         int pos = 0;
1622         char buf[40];
1623         const size_t bufsz = sizeof(buf);
1624
1625         if (priv->cfg->ht_params)
1626                 pos += scnprintf(buf + pos, bufsz - pos,
1627                          "use %s for aggregation\n",
1628                          (priv->cfg->ht_params->use_rts_for_aggregation) ?
1629                                 "rts/cts" : "cts-to-self");
1630         else
1631                 pos += scnprintf(buf + pos, bufsz - pos, "N/A");
1632
1633         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1634 }
1635
1636 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
1637                                         const char __user *user_buf,
1638                                         size_t count, loff_t *ppos) {
1639
1640         struct iwl_priv *priv = file->private_data;
1641         char buf[8];
1642         int buf_size;
1643         int rts;
1644
1645         if (!priv->cfg->ht_params)
1646                 return -EINVAL;
1647
1648         memset(buf, 0, sizeof(buf));
1649         buf_size = min(count, sizeof(buf) -  1);
1650         if (copy_from_user(buf, user_buf, buf_size))
1651                 return -EFAULT;
1652         if (sscanf(buf, "%d", &rts) != 1)
1653                 return -EINVAL;
1654         if (rts)
1655                 priv->cfg->ht_params->use_rts_for_aggregation = true;
1656         else
1657                 priv->cfg->ht_params->use_rts_for_aggregation = false;
1658         return count;
1659 }
1660
1661 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1662                                         char __user *user_buf,
1663                                         size_t count, loff_t *ppos)
1664 {
1665         struct iwl_priv *priv = file->private_data;
1666
1667         if (priv->cfg->ops->lib->debugfs_ops.reply_tx_error)
1668                 return priv->cfg->ops->lib->debugfs_ops.reply_tx_error(
1669                         file, user_buf, count, ppos);
1670         else
1671                 return -ENODATA;
1672 }
1673 DEBUGFS_READ_FILE_OPS(rx_statistics);
1674 DEBUGFS_READ_FILE_OPS(tx_statistics);
1675 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
1676 DEBUGFS_READ_FILE_OPS(rx_queue);
1677 DEBUGFS_READ_FILE_OPS(tx_queue);
1678 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
1679 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
1680 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
1681 DEBUGFS_READ_FILE_OPS(sensitivity);
1682 DEBUGFS_READ_FILE_OPS(chain_noise);
1683 DEBUGFS_READ_FILE_OPS(power_save_status);
1684 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
1685 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
1686 DEBUGFS_WRITE_FILE_OPS(csr);
1687 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
1688 DEBUGFS_READ_FILE_OPS(fh_reg);
1689 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
1690 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
1691 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
1692 DEBUGFS_READ_FILE_OPS(rxon_flags);
1693 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
1694 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
1695 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
1696 DEBUGFS_WRITE_FILE_OPS(wd_timeout);
1697 DEBUGFS_READ_FILE_OPS(bt_traffic);
1698 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
1699 DEBUGFS_READ_FILE_OPS(reply_tx_error);
1700
1701 /*
1702  * Create the debugfs files and directories
1703  *
1704  */
1705 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
1706 {
1707         struct dentry *phyd = priv->hw->wiphy->debugfsdir;
1708         struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
1709
1710         dir_drv = debugfs_create_dir(name, phyd);
1711         if (!dir_drv)
1712                 return -ENOMEM;
1713
1714         priv->debugfs_dir = dir_drv;
1715
1716         dir_data = debugfs_create_dir("data", dir_drv);
1717         if (!dir_data)
1718                 goto err;
1719         dir_rf = debugfs_create_dir("rf", dir_drv);
1720         if (!dir_rf)
1721                 goto err;
1722         dir_debug = debugfs_create_dir("debug", dir_drv);
1723         if (!dir_debug)
1724                 goto err;
1725
1726         DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
1727         DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
1728         DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR);
1729         DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
1730         DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
1731         DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
1732         DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
1733         DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
1734         if (!priv->cfg->base_params->broken_powersave) {
1735                 DEBUGFS_ADD_FILE(sleep_level_override, dir_data,
1736                                  S_IWUSR | S_IRUSR);
1737                 DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
1738         }
1739         DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
1740         DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
1741         DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
1742         DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
1743         DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
1744         DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
1745         DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
1746         DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
1747         DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
1748         DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
1749         DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
1750         DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
1751         DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
1752         DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
1753         DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
1754         DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
1755         DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
1756         DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
1757         if (priv->cfg->ops->lib->dev_txfifo_flush)
1758                 DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
1759         DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
1760
1761         if (priv->cfg->base_params->sensitivity_calib_by_driver)
1762                 DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
1763         if (priv->cfg->base_params->chain_noise_calib_by_driver)
1764                 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
1765         if (priv->cfg->base_params->ucode_tracing)
1766                 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
1767         if (iwl_bt_statistics(priv))
1768                 DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
1769         DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
1770         DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
1771         DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
1772         DEBUGFS_ADD_FILE(wd_timeout, dir_debug, S_IWUSR);
1773         if (iwl_advanced_bt_coexist(priv))
1774                 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
1775         if (priv->cfg->base_params->sensitivity_calib_by_driver)
1776                 DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
1777                                  &priv->disable_sens_cal);
1778         if (priv->cfg->base_params->chain_noise_calib_by_driver)
1779                 DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
1780                                  &priv->disable_chain_noise_cal);
1781         if (priv->cfg->base_params->tx_power_by_driver)
1782                 DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf,
1783                                 &priv->disable_tx_power_cal);
1784         return 0;
1785
1786 err:
1787         IWL_ERR(priv, "Can't create the debugfs directory\n");
1788         iwl_dbgfs_unregister(priv);
1789         return -ENOMEM;
1790 }
1791
1792 /**
1793  * Remove the debugfs files and directories
1794  *
1795  */
1796 void iwl_dbgfs_unregister(struct iwl_priv *priv)
1797 {
1798         if (!priv->debugfs_dir)
1799                 return;
1800
1801         debugfs_remove_recursive(priv->debugfs_dir);
1802         priv->debugfs_dir = NULL;
1803 }
1804
1805
1806