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

   1 /******************************************************************************
   2  *
   3  * GPL LICENSE SUMMARY
   4  *
   5  * Copyright(c) 2008 - 2011 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 = iwl_dump_nic_event_log(priv, true, &buf, true);
 441         if (buf) {
 442                 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 443                 kfree(buf);
 444         }
 445         return ret;
 446 }
 447
 448 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
 449                                         const char __user *user_buf,
 450                                         size_t count, loff_t *ppos)
 451 {
 452         struct iwl_priv *priv = file->private_data;
 453         u32 event_log_flag;
 454         char buf[8];
 455         int buf_size;
 456
 457         memset(buf, 0, sizeof(buf));
 458         buf_size = min(count, sizeof(buf) -  1);
 459         if (copy_from_user(buf, user_buf, buf_size))
 460                 return -EFAULT;
 461         if (sscanf(buf, "%d", &event_log_flag) != 1)
 462                 return -EFAULT;
 463         if (event_log_flag == 1)
 464                 iwl_dump_nic_event_log(priv, true, NULL, false);
 465
 466         return count;
 467 }
 468
 469
 470
 471 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 472                                        size_t count, loff_t *ppos)
 473 {
 474         struct iwl_priv *priv = file->private_data;
 475         struct ieee80211_channel *channels = NULL;
 476         const struct ieee80211_supported_band *supp_band = NULL;
 477         int pos = 0, i, bufsz = PAGE_SIZE;
 478         char *buf;
 479         ssize_t ret;
 480
 481         if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
 482                 return -EAGAIN;
 483
 484         buf = kzalloc(bufsz, GFP_KERNEL);
 485         if (!buf) {
 486                 IWL_ERR(priv, "Can not allocate Buffer\n");
 487                 return -ENOMEM;
 488         }
 489
 490         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
 491         if (supp_band) {
 492                 channels = supp_band->channels;
 493
 494                 pos += scnprintf(buf + pos, bufsz - pos,
 495                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
 496                                 supp_band->n_channels);
 497
 498                 for (i = 0; i < supp_band->n_channels; i++)
 499                         pos += scnprintf(buf + pos, bufsz - pos,
 500                                         "%d: %ddBm: BSS%s%s, %s.\n",
 501                                         channels[i].hw_value,
 502                                         channels[i].max_power,
 503                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 504                                         " (IEEE 802.11h required)" : "",
 505                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 506                                         || (channels[i].flags &
 507                                         IEEE80211_CHAN_RADAR)) ? "" :
 508                                         ", IBSS",
 509                                         channels[i].flags &
 510                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 511                                         "passive only" : "active/passive");
 512         }
 513         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
 514         if (supp_band) {
 515                 channels = supp_band->channels;
 516
 517                 pos += scnprintf(buf + pos, bufsz - pos,
 518                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
 519                                 supp_band->n_channels);
 520
 521                 for (i = 0; i < supp_band->n_channels; i++)
 522                         pos += scnprintf(buf + pos, bufsz - pos,
 523                                         "%d: %ddBm: BSS%s%s, %s.\n",
 524                                         channels[i].hw_value,
 525                                         channels[i].max_power,
 526                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 527                                         " (IEEE 802.11h required)" : "",
 528                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 529                                         || (channels[i].flags &
 530                                         IEEE80211_CHAN_RADAR)) ? "" :
 531                                         ", IBSS",
 532                                         channels[i].flags &
 533                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 534                                         "passive only" : "active/passive");
 535         }
 536         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 537         kfree(buf);
 538         return ret;
 539 }
 540
 541 static ssize_t iwl_dbgfs_status_read(struct file *file,
 542                                                 char __user *user_buf,
 543                                                 size_t count, loff_t *ppos) {
 544
 545         struct iwl_priv *priv = file->private_data;
 546         char buf[512];
 547         int pos = 0;
 548         const size_t bufsz = sizeof(buf);
 549
 550         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
 551                 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
 552         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
 553                 test_bit(STATUS_INT_ENABLED, &priv->status));
 554         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 555                 test_bit(STATUS_RF_KILL_HW, &priv->status));
 556         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 557                 test_bit(STATUS_CT_KILL, &priv->status));
 558         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
 559                 test_bit(STATUS_INIT, &priv->status));
 560         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 561                 test_bit(STATUS_ALIVE, &priv->status));
 562         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 563                 test_bit(STATUS_READY, &priv->status));
 564         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
 565                 test_bit(STATUS_TEMPERATURE, &priv->status));
 566         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
 567                 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
 568         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 569                 test_bit(STATUS_EXIT_PENDING, &priv->status));
 570         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 571                 test_bit(STATUS_STATISTICS, &priv->status));
 572         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 573                 test_bit(STATUS_SCANNING, &priv->status));
 574         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 575                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
 576         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 577                 test_bit(STATUS_SCAN_HW, &priv->status));
 578         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 579                 test_bit(STATUS_POWER_PMI, &priv->status));
 580         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 581                 test_bit(STATUS_FW_ERROR, &priv->status));
 582         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 583 }
 584
 585 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
 586                                         char __user *user_buf,
 587                                         size_t count, loff_t *ppos) {
 588
 589         struct iwl_priv *priv = file->private_data;
 590         int pos = 0;
 591         int cnt = 0;
 592         char *buf;
 593         int bufsz = 24 * 64; /* 24 items * 64 char per item */
 594         ssize_t ret;
 595
 596         buf = kzalloc(bufsz, GFP_KERNEL);
 597         if (!buf) {
 598                 IWL_ERR(priv, "Can not allocate Buffer\n");
 599                 return -ENOMEM;
 600         }
 601
 602         pos += scnprintf(buf + pos, bufsz - pos,
 603                         "Interrupt Statistics Report:\n");
 604
 605         pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
 606                 priv->isr_stats.hw);
 607         pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
 608                 priv->isr_stats.sw);
 609         if (priv->isr_stats.sw || priv->isr_stats.hw) {
 610                 pos += scnprintf(buf + pos, bufsz - pos,
 611                         "\tLast Restarting Code:  0x%X\n",
 612                         priv->isr_stats.err_code);
 613         }
 614 #ifdef CONFIG_IWLWIFI_DEBUG
 615         pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
 616                 priv->isr_stats.sch);
 617         pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
 618                 priv->isr_stats.alive);
 619 #endif
 620         pos += scnprintf(buf + pos, bufsz - pos,
 621                 "HW RF KILL switch toggled:\t %u\n",
 622                 priv->isr_stats.rfkill);
 623
 624         pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
 625                 priv->isr_stats.ctkill);
 626
 627         pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
 628                 priv->isr_stats.wakeup);
 629
 630         pos += scnprintf(buf + pos, bufsz - pos,
 631                 "Rx command responses:\t\t %u\n",
 632                 priv->isr_stats.rx);
 633         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 634                 if (priv->isr_stats.rx_handlers[cnt] > 0)
 635                         pos += scnprintf(buf + pos, bufsz - pos,
 636                                 "\tRx handler[%36s]:\t\t %u\n",
 637                                 get_cmd_string(cnt),
 638                                 priv->isr_stats.rx_handlers[cnt]);
 639         }
 640
 641         pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
 642                 priv->isr_stats.tx);
 643
 644         pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
 645                 priv->isr_stats.unhandled);
 646
 647         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 648         kfree(buf);
 649         return ret;
 650 }
 651
 652 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
 653                                          const char __user *user_buf,
 654                                          size_t count, loff_t *ppos)
 655 {
 656         struct iwl_priv *priv = file->private_data;
 657         char buf[8];
 658         int buf_size;
 659         u32 reset_flag;
 660
 661         memset(buf, 0, sizeof(buf));
 662         buf_size = min(count, sizeof(buf) -  1);
 663         if (copy_from_user(buf, user_buf, buf_size))
 664                 return -EFAULT;
 665         if (sscanf(buf, "%x", &reset_flag) != 1)
 666                 return -EFAULT;
 667         if (reset_flag == 0)
 668                 iwl_clear_isr_stats(priv);
 669
 670         return count;
 671 }
 672
 673 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 674                                        size_t count, loff_t *ppos)
 675 {
 676         struct iwl_priv *priv = file->private_data;
 677         struct iwl_rxon_context *ctx;
 678         int pos = 0, i;
 679         char buf[256 * NUM_IWL_RXON_CTX];
 680         const size_t bufsz = sizeof(buf);
 681
 682         for_each_context(priv, ctx) {
 683                 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
 684                                  ctx->ctxid);
 685                 for (i = 0; i < AC_NUM; i++) {
 686                         pos += scnprintf(buf + pos, bufsz - pos,
 687                                 "\tcw_min\tcw_max\taifsn\ttxop\n");
 688                         pos += scnprintf(buf + pos, bufsz - pos,
 689                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
 690                                 ctx->qos_data.def_qos_parm.ac[i].cw_min,
 691                                 ctx->qos_data.def_qos_parm.ac[i].cw_max,
 692                                 ctx->qos_data.def_qos_parm.ac[i].aifsn,
 693                                 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
 694                 }
 695                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 696         }
 697         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 698 }
 699
 700 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 701                                 char __user *user_buf,
 702                                 size_t count, loff_t *ppos)
 703 {
 704         struct iwl_priv *priv = file->private_data;
 705         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 706         struct iwl_tt_restriction *restriction;
 707         char buf[100];
 708         int pos = 0;
 709         const size_t bufsz = sizeof(buf);
 710
 711         pos += scnprintf(buf + pos, bufsz - pos,
 712                         "Thermal Throttling Mode: %s\n",
 713                         tt->advanced_tt ? "Advance" : "Legacy");
 714         pos += scnprintf(buf + pos, bufsz - pos,
 715                         "Thermal Throttling State: %d\n",
 716                         tt->state);
 717         if (tt->advanced_tt) {
 718                 restriction = tt->restriction + tt->state;
 719                 pos += scnprintf(buf + pos, bufsz - pos,
 720                                 "Tx mode: %d\n",
 721                                 restriction->tx_stream);
 722                 pos += scnprintf(buf + pos, bufsz - pos,
 723                                 "Rx mode: %d\n",
 724                                 restriction->rx_stream);
 725                 pos += scnprintf(buf + pos, bufsz - pos,
 726                                 "HT mode: %d\n",
 727                                 restriction->is_ht);
 728         }
 729         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 730 }
 731
 732 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 733                                          const char __user *user_buf,
 734                                          size_t count, loff_t *ppos)
 735 {
 736         struct iwl_priv *priv = file->private_data;
 737         char buf[8];
 738         int buf_size;
 739         int ht40;
 740
 741         memset(buf, 0, sizeof(buf));
 742         buf_size = min(count, sizeof(buf) -  1);
 743         if (copy_from_user(buf, user_buf, buf_size))
 744                 return -EFAULT;
 745         if (sscanf(buf, "%d", &ht40) != 1)
 746                 return -EFAULT;
 747         if (!iwl_is_any_associated(priv))
 748                 priv->disable_ht40 = ht40 ? true : false;
 749         else {
 750                 IWL_ERR(priv, "Sta associated with AP - "
 751                         "Change to 40MHz channel support is not allowed\n");
 752                 return -EINVAL;
 753         }
 754
 755         return count;
 756 }
 757
 758 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 759                                          char __user *user_buf,
 760                                          size_t count, loff_t *ppos)
 761 {
 762         struct iwl_priv *priv = file->private_data;
 763         char buf[100];
 764         int pos = 0;
 765         const size_t bufsz = sizeof(buf);
 766
 767         pos += scnprintf(buf + pos, bufsz - pos,
 768                         "11n 40MHz Mode: %s\n",
 769                         priv->disable_ht40 ? "Disabled" : "Enabled");
 770         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 771 }
 772
 773 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 774                                                     const char __user *user_buf,
 775                                                     size_t count, loff_t *ppos)
 776 {
 777         struct iwl_priv *priv = file->private_data;
 778         char buf[8];
 779         int buf_size;
 780         int value;
 781
 782         memset(buf, 0, sizeof(buf));
 783         buf_size = min(count, sizeof(buf) -  1);
 784         if (copy_from_user(buf, user_buf, buf_size))
 785                 return -EFAULT;
 786
 787         if (sscanf(buf, "%d", &value) != 1)
 788                 return -EINVAL;
 789
 790         /*
 791          * Our users expect 0 to be "CAM", but 0 isn't actually
 792          * valid here. However, let's not confuse them and present
 793          * IWL_POWER_INDEX_1 as "1", not "0".
 794          */
 795         if (value == 0)
 796                 return -EINVAL;
 797         else if (value > 0)
 798                 value -= 1;
 799
 800         if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 801                 return -EINVAL;
 802
 803         if (!iwl_is_ready_rf(priv))
 804                 return -EAGAIN;
 805
 806         priv->power_data.debug_sleep_level_override = value;
 807
 808         mutex_lock(&priv->mutex);
 809         iwl_power_update_mode(priv, true);
 810         mutex_unlock(&priv->mutex);
 811
 812         return count;
 813 }
 814
 815 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 816                                                    char __user *user_buf,
 817                                                    size_t count, loff_t *ppos)
 818 {
 819         struct iwl_priv *priv = file->private_data;
 820         char buf[10];
 821         int pos, value;
 822         const size_t bufsz = sizeof(buf);
 823
 824         /* see the write function */
 825         value = priv->power_data.debug_sleep_level_override;
 826         if (value >= 0)
 827                 value += 1;
 828
 829         pos = scnprintf(buf, bufsz, "%d\n", value);
 830         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 831 }
 832
 833 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 834                                                     char __user *user_buf,
 835                                                     size_t count, loff_t *ppos)
 836 {
 837         struct iwl_priv *priv = file->private_data;
 838         char buf[200];
 839         int pos = 0, i;
 840         const size_t bufsz = sizeof(buf);
 841         struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 842
 843         pos += scnprintf(buf + pos, bufsz - pos,
 844                          "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 845         pos += scnprintf(buf + pos, bufsz - pos,
 846                          "RX/TX timeout: %d/%d usec\n",
 847                          le32_to_cpu(cmd->rx_data_timeout),
 848                          le32_to_cpu(cmd->tx_data_timeout));
 849         for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 850                 pos += scnprintf(buf + pos, bufsz - pos,
 851                                  "sleep_interval[%d]: %d\n", i,
 852                                  le32_to_cpu(cmd->sleep_interval[i]));
 853
 854         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 855 }
 856
 857 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 858 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
 859 DEBUGFS_READ_FILE_OPS(nvm);
 860 DEBUGFS_READ_FILE_OPS(stations);
 861 DEBUGFS_READ_FILE_OPS(channels);
 862 DEBUGFS_READ_FILE_OPS(status);
 863 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 864 DEBUGFS_READ_FILE_OPS(qos);
 865 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 866 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 867 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 868 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 869
 870 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
 871                                          char __user *user_buf,
 872                                          size_t count, loff_t *ppos)
 873 {
 874         struct iwl_priv *priv = file->private_data;
 875         int pos = 0, ofs = 0;
 876         int cnt = 0, entry;
 877         struct iwl_tx_queue *txq;
 878         struct iwl_queue *q;
 879         struct iwl_rx_queue *rxq = &priv->rxq;
 880         char *buf;
 881         int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
 882                 (priv->cfg->base_params->num_of_queues * 32 * 8) + 400;
 883         const u8 *ptr;
 884         ssize_t ret;
 885
 886         if (!priv->txq) {
 887                 IWL_ERR(priv, "txq not ready\n");
 888                 return -EAGAIN;
 889         }
 890         buf = kzalloc(bufsz, GFP_KERNEL);
 891         if (!buf) {
 892                 IWL_ERR(priv, "Can not allocate buffer\n");
 893                 return -ENOMEM;
 894         }
 895         pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
 896         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 897                 txq = &priv->txq[cnt];
 898                 q = &txq->q;
 899                 pos += scnprintf(buf + pos, bufsz - pos,
 900                                 "q[%d]: read_ptr: %u, write_ptr: %u\n",
 901                                 cnt, q->read_ptr, q->write_ptr);
 902         }
 903         if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
 904                 ptr = priv->tx_traffic;
 905                 pos += scnprintf(buf + pos, bufsz - pos,
 906                                 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
 907                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 908                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 909                              entry++,  ofs += 16) {
 910                                 pos += scnprintf(buf + pos, bufsz - pos,
 911                                                 "0x%.4x ", ofs);
 912                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 913                                                    buf + pos, bufsz - pos, 0);
 914                                 pos += strlen(buf + pos);
 915                                 if (bufsz - pos > 0)
 916                                         buf[pos++] = '\n';
 917                         }
 918                 }
 919         }
 920
 921         pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
 922         pos += scnprintf(buf + pos, bufsz - pos,
 923                         "read: %u, write: %u\n",
 924                          rxq->read, rxq->write);
 925
 926         if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
 927                 ptr = priv->rx_traffic;
 928                 pos += scnprintf(buf + pos, bufsz - pos,
 929                                 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
 930                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 931                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 932                              entry++,  ofs += 16) {
 933                                 pos += scnprintf(buf + pos, bufsz - pos,
 934                                                 "0x%.4x ", ofs);
 935                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 936                                                    buf + pos, bufsz - pos, 0);
 937                                 pos += strlen(buf + pos);
 938                                 if (bufsz - pos > 0)
 939                                         buf[pos++] = '\n';
 940                         }
 941                 }
 942         }
 943
 944         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 945         kfree(buf);
 946         return ret;
 947 }
 948
 949 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
 950                                          const char __user *user_buf,
 951                                          size_t count, loff_t *ppos)
 952 {
 953         struct iwl_priv *priv = file->private_data;
 954         char buf[8];
 955         int buf_size;
 956         int traffic_log;
 957
 958         memset(buf, 0, sizeof(buf));
 959         buf_size = min(count, sizeof(buf) -  1);
 960         if (copy_from_user(buf, user_buf, buf_size))
 961                 return -EFAULT;
 962         if (sscanf(buf, "%d", &traffic_log) != 1)
 963                 return -EFAULT;
 964         if (traffic_log == 0)
 965                 iwl_reset_traffic_log(priv);
 966
 967         return count;
 968 }
 969
 970 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
 971                                                 char __user *user_buf,
 972                                                 size_t count, loff_t *ppos) {
 973
 974         struct iwl_priv *priv = file->private_data;
 975         struct iwl_tx_queue *txq;
 976         struct iwl_queue *q;
 977         char *buf;
 978         int pos = 0;
 979         int cnt;
 980         int ret;
 981         const size_t bufsz = sizeof(char) * 64 *
 982                                 priv->cfg->base_params->num_of_queues;
 983
 984         if (!priv->txq) {
 985                 IWL_ERR(priv, "txq not ready\n");
 986                 return -EAGAIN;
 987         }
 988         buf = kzalloc(bufsz, GFP_KERNEL);
 989         if (!buf)
 990                 return -ENOMEM;
 991
 992         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 993                 txq = &priv->txq[cnt];
 994                 q = &txq->q;
 995                 pos += scnprintf(buf + pos, bufsz - pos,
 996                                 "hwq %.2d: read=%u write=%u stop=%d"
 997                                 " swq_id=%#.2x (ac %d/hwq %d)\n",
 998                                 cnt, q->read_ptr, q->write_ptr,
 999                                 !!test_bit(cnt, priv->queue_stopped),
1000                                 txq->swq_id, txq->swq_id & 3,
1001                                 (txq->swq_id >> 2) & 0x1f);
1002                 if (cnt >= 4)
1003                         continue;
1004                 /* for the ACs, display the stop count too */
1005                 pos += scnprintf(buf + pos, bufsz - pos,
1006                                 "        stop-count: %d\n",
1007                                 atomic_read(&priv->queue_stop_count[cnt]));
1008         }
1009         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1010         kfree(buf);
1011         return ret;
1012 }
1013
1014 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
1015                                                 char __user *user_buf,
1016                                                 size_t count, loff_t *ppos) {
1017
1018         struct iwl_priv *priv = file->private_data;
1019         struct iwl_rx_queue *rxq = &priv->rxq;
1020         char buf[256];
1021         int pos = 0;
1022         const size_t bufsz = sizeof(buf);
1023
1024         pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
1025                                                 rxq->read);
1026         pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
1027                                                 rxq->write);
1028         pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1029                                                 rxq->free_count);
1030         if (rxq->rb_stts) {
1031                 pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1032                          le16_to_cpu(rxq->rb_stts->closed_rb_num) &  0x0FFF);
1033         } else {
1034                 pos += scnprintf(buf + pos, bufsz - pos,
1035                                         "closed_rb_num: Not Allocated\n");
1036         }
1037         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1038 }
1039
1040 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1041                                         char __user *user_buf,
1042                                         size_t count, loff_t *ppos)
1043 {
1044         struct iwl_priv *priv = file->private_data;
1045         return priv->cfg->ops->lib->debugfs_ops.rx_stats_read(file,
1046                         user_buf, count, ppos);
1047 }
1048
1049 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1050                                         char __user *user_buf,
1051                                         size_t count, loff_t *ppos)
1052 {
1053         struct iwl_priv *priv = file->private_data;
1054         return priv->cfg->ops->lib->debugfs_ops.tx_stats_read(file,
1055                         user_buf, count, ppos);
1056 }
1057
1058 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1059                                         char __user *user_buf,
1060                                         size_t count, loff_t *ppos)
1061 {
1062         struct iwl_priv *priv = file->private_data;
1063         return priv->cfg->ops->lib->debugfs_ops.general_stats_read(file,
1064                         user_buf, count, ppos);
1065 }
1066
1067 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1068                                         char __user *user_buf,
1069                                         size_t count, loff_t *ppos) {
1070
1071         struct iwl_priv *priv = file->private_data;
1072         int pos = 0;
1073         int cnt = 0;
1074         char *buf;
1075         int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1076         ssize_t ret;
1077         struct iwl_sensitivity_data *data;
1078
1079         data = &priv->sensitivity_data;
1080         buf = kzalloc(bufsz, GFP_KERNEL);
1081         if (!buf) {
1082                 IWL_ERR(priv, "Can not allocate Buffer\n");
1083                 return -ENOMEM;
1084         }
1085
1086         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1087                         data->auto_corr_ofdm);
1088         pos += scnprintf(buf + pos, bufsz - pos,
1089                         "auto_corr_ofdm_mrc:\t\t %u\n",
1090                         data->auto_corr_ofdm_mrc);
1091         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1092                         data->auto_corr_ofdm_x1);
1093         pos += scnprintf(buf + pos, bufsz - pos,
1094                         "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1095                         data->auto_corr_ofdm_mrc_x1);
1096         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1097                         data->auto_corr_cck);
1098         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1099                         data->auto_corr_cck_mrc);
1100         pos += scnprintf(buf + pos, bufsz - pos,
1101                         "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1102                         data->last_bad_plcp_cnt_ofdm);
1103         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1104                         data->last_fa_cnt_ofdm);
1105         pos += scnprintf(buf + pos, bufsz - pos,
1106                         "last_bad_plcp_cnt_cck:\t\t %u\n",
1107                         data->last_bad_plcp_cnt_cck);
1108         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1109                         data->last_fa_cnt_cck);
1110         pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1111                         data->nrg_curr_state);
1112         pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1113                         data->nrg_prev_state);
1114         pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1115         for (cnt = 0; cnt < 10; cnt++) {
1116                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1117                                 data->nrg_value[cnt]);
1118         }
1119         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1120         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1121         for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1122                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1123                                 data->nrg_silence_rssi[cnt]);
1124         }
1125         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1126         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1127                         data->nrg_silence_ref);
1128         pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1129                         data->nrg_energy_idx);
1130         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1131                         data->nrg_silence_idx);
1132         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1133                         data->nrg_th_cck);
1134         pos += scnprintf(buf + pos, bufsz - pos,
1135                         "nrg_auto_corr_silence_diff:\t %u\n",
1136                         data->nrg_auto_corr_silence_diff);
1137         pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1138                         data->num_in_cck_no_fa);
1139         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1140                         data->nrg_th_ofdm);
1141
1142         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1143         kfree(buf);
1144         return ret;
1145 }
1146
1147
1148 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1149                                         char __user *user_buf,
1150                                         size_t count, loff_t *ppos) {
1151
1152         struct iwl_priv *priv = file->private_data;
1153         int pos = 0;
1154         int cnt = 0;
1155         char *buf;
1156         int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1157         ssize_t ret;
1158         struct iwl_chain_noise_data *data;
1159
1160         data = &priv->chain_noise_data;
1161         buf = kzalloc(bufsz, GFP_KERNEL);
1162         if (!buf) {
1163                 IWL_ERR(priv, "Can not allocate Buffer\n");
1164                 return -ENOMEM;
1165         }
1166
1167         pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1168                         data->active_chains);
1169         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1170                         data->chain_noise_a);
1171         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1172                         data->chain_noise_b);
1173         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1174                         data->chain_noise_c);
1175         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1176                         data->chain_signal_a);
1177         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1178                         data->chain_signal_b);
1179         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1180                         data->chain_signal_c);
1181         pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1182                         data->beacon_count);
1183
1184         pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1185         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1186                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1187                                 data->disconn_array[cnt]);
1188         }
1189         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1190         pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1191         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1192                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1193                                 data->delta_gain_code[cnt]);
1194         }
1195         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1196         pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1197                         data->radio_write);
1198         pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1199                         data->state);
1200
1201         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1202         kfree(buf);
1203         return ret;
1204 }
1205
1206 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1207                                                     char __user *user_buf,
1208                                                     size_t count, loff_t *ppos)
1209 {
1210         struct iwl_priv *priv = file->private_data;
1211         char buf[60];
1212         int pos = 0;
1213         const size_t bufsz = sizeof(buf);
1214         u32 pwrsave_status;
1215
1216         pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
1217                         CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1218
1219         pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1220         pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1221                 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1222                 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1223                 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1224                 "error");
1225
1226         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1227 }
1228
1229 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1230                                          const char __user *user_buf,
1231                                          size_t count, loff_t *ppos)
1232 {
1233         struct iwl_priv *priv = file->private_data;
1234         char buf[8];
1235         int buf_size;
1236         int clear;
1237
1238         memset(buf, 0, sizeof(buf));
1239         buf_size = min(count, sizeof(buf) -  1);
1240         if (copy_from_user(buf, user_buf, buf_size))
1241                 return -EFAULT;
1242         if (sscanf(buf, "%d", &clear) != 1)
1243                 return -EFAULT;
1244
1245         /* make request to uCode to retrieve statistics information */
1246         mutex_lock(&priv->mutex);
1247         iwl_send_statistics_request(priv, CMD_SYNC, true);
1248         mutex_unlock(&priv->mutex);
1249
1250         return count;
1251 }
1252
1253 static ssize_t iwl_dbgfs_csr_write(struct file *file,
1254                                          const char __user *user_buf,
1255                                          size_t count, loff_t *ppos)
1256 {
1257         struct iwl_priv *priv = file->private_data;
1258         char buf[8];
1259         int buf_size;
1260         int csr;
1261
1262         memset(buf, 0, sizeof(buf));
1263         buf_size = min(count, sizeof(buf) -  1);
1264         if (copy_from_user(buf, user_buf, buf_size))
1265                 return -EFAULT;
1266         if (sscanf(buf, "%d", &csr) != 1)
1267                 return -EFAULT;
1268
1269         iwl_dump_csr(priv);
1270
1271         return count;
1272 }
1273
1274 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1275                                         char __user *user_buf,
1276                                         size_t count, loff_t *ppos) {
1277
1278         struct iwl_priv *priv = file->private_data;
1279         int pos = 0;
1280         char buf[128];
1281         const size_t bufsz = sizeof(buf);
1282
1283         pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1284                         priv->event_log.ucode_trace ? "On" : "Off");
1285         pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1286                         priv->event_log.non_wraps_count);
1287         pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1288                         priv->event_log.wraps_once_count);
1289         pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1290                         priv->event_log.wraps_more_count);
1291
1292         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1293 }
1294
1295 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1296                                          const char __user *user_buf,
1297                                          size_t count, loff_t *ppos)
1298 {
1299         struct iwl_priv *priv = file->private_data;
1300         char buf[8];
1301         int buf_size;
1302         int trace;
1303
1304         memset(buf, 0, sizeof(buf));
1305         buf_size = min(count, sizeof(buf) -  1);
1306         if (copy_from_user(buf, user_buf, buf_size))
1307                 return -EFAULT;
1308         if (sscanf(buf, "%d", &trace) != 1)
1309                 return -EFAULT;
1310
1311         if (trace) {
1312                 priv->event_log.ucode_trace = true;
1313                 /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
1314                 mod_timer(&priv->ucode_trace,
1315                         jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
1316         } else {
1317                 priv->event_log.ucode_trace = false;
1318                 del_timer_sync(&priv->ucode_trace);
1319         }
1320
1321         return count;
1322 }
1323
1324 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1325                                          char __user *user_buf,
1326                                          size_t count, loff_t *ppos) {
1327
1328         struct iwl_priv *priv = file->private_data;
1329         int len = 0;
1330         char buf[20];
1331
1332         len = sprintf(buf, "0x%04X\n",
1333                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1334         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1335 }
1336
1337 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1338                                                 char __user *user_buf,
1339                                                 size_t count, loff_t *ppos) {
1340
1341         struct iwl_priv *priv = file->private_data;
1342         int len = 0;
1343         char buf[20];
1344
1345         len = sprintf(buf, "0x%04X\n",
1346                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1347         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1348 }
1349
1350 static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
1351                                          char __user *user_buf,
1352                                          size_t count, loff_t *ppos)
1353 {
1354         struct iwl_priv *priv = file->private_data;
1355         char *buf;
1356         int pos = 0;
1357         ssize_t ret = -EFAULT;
1358
1359         ret = pos = iwl_dump_fh(priv, &buf, true);
1360         if (buf) {
1361                 ret = simple_read_from_buffer(user_buf,
1362                                               count, ppos, buf, pos);
1363                 kfree(buf);
1364         }
1365
1366         return ret;
1367 }
1368
1369 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1370                                         char __user *user_buf,
1371                                         size_t count, loff_t *ppos) {
1372
1373         struct iwl_priv *priv = file->private_data;
1374         int pos = 0;
1375         char buf[12];
1376         const size_t bufsz = sizeof(buf);
1377
1378         pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1379                         priv->missed_beacon_threshold);
1380
1381         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1382 }
1383
1384 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1385                                          const char __user *user_buf,
1386                                          size_t count, loff_t *ppos)
1387 {
1388         struct iwl_priv *priv = file->private_data;
1389         char buf[8];
1390         int buf_size;
1391         int missed;
1392
1393         memset(buf, 0, sizeof(buf));
1394         buf_size = min(count, sizeof(buf) -  1);
1395         if (copy_from_user(buf, user_buf, buf_size))
1396                 return -EFAULT;
1397         if (sscanf(buf, "%d", &missed) != 1)
1398                 return -EINVAL;
1399
1400         if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1401             missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1402                 priv->missed_beacon_threshold =
1403                         IWL_MISSED_BEACON_THRESHOLD_DEF;
1404         else
1405                 priv->missed_beacon_threshold = missed;
1406
1407         return count;
1408 }
1409
1410 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1411                                         char __user *user_buf,
1412                                         size_t count, loff_t *ppos) {
1413
1414         struct iwl_priv *priv = file->private_data;
1415         int pos = 0;
1416         char buf[12];
1417         const size_t bufsz = sizeof(buf);
1418
1419         pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1420                         priv->cfg->base_params->plcp_delta_threshold);
1421
1422         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1423 }
1424
1425 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1426                                         const char __user *user_buf,
1427                                         size_t count, loff_t *ppos) {
1428
1429         struct iwl_priv *priv = file->private_data;
1430         char buf[8];
1431         int buf_size;
1432         int plcp;
1433
1434         memset(buf, 0, sizeof(buf));
1435         buf_size = min(count, sizeof(buf) -  1);
1436         if (copy_from_user(buf, user_buf, buf_size))
1437                 return -EFAULT;
1438         if (sscanf(buf, "%d", &plcp) != 1)
1439                 return -EINVAL;
1440         if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1441                 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1442                 priv->cfg->base_params->plcp_delta_threshold =
1443                         IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
1444         else
1445                 priv->cfg->base_params->plcp_delta_threshold = plcp;
1446         return count;
1447 }
1448
1449 static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
1450                                         char __user *user_buf,
1451                                         size_t count, loff_t *ppos) {
1452
1453         struct iwl_priv *priv = file->private_data;
1454         int i, pos = 0;
1455         char buf[300];
1456         const size_t bufsz = sizeof(buf);
1457         struct iwl_force_reset *force_reset;
1458
1459         for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
1460                 force_reset = &priv->force_reset[i];
1461                 pos += scnprintf(buf + pos, bufsz - pos,
1462                                 "Force reset method %d\n", i);
1463                 pos += scnprintf(buf + pos, bufsz - pos,
1464                                 "\tnumber of reset request: %d\n",
1465                                 force_reset->reset_request_count);
1466                 pos += scnprintf(buf + pos, bufsz - pos,
1467                                 "\tnumber of reset request success: %d\n",
1468                                 force_reset->reset_success_count);
1469                 pos += scnprintf(buf + pos, bufsz - pos,
1470                                 "\tnumber of reset request reject: %d\n",
1471                                 force_reset->reset_reject_count);
1472                 pos += scnprintf(buf + pos, bufsz - pos,
1473                                 "\treset duration: %lu\n",
1474                                 force_reset->reset_duration);
1475         }
1476         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1477 }
1478
1479 static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
1480                                         const char __user *user_buf,
1481                                         size_t count, loff_t *ppos) {
1482
1483         struct iwl_priv *priv = file->private_data;
1484         char buf[8];
1485         int buf_size;
1486         int reset, ret;
1487
1488         memset(buf, 0, sizeof(buf));
1489         buf_size = min(count, sizeof(buf) -  1);
1490         if (copy_from_user(buf, user_buf, buf_size))
1491                 return -EFAULT;
1492         if (sscanf(buf, "%d", &reset) != 1)
1493                 return -EINVAL;
1494         switch (reset) {
1495         case IWL_RF_RESET:
1496         case IWL_FW_RESET:
1497                 ret = iwl_force_reset(priv, reset, true);
1498                 break;
1499         default:
1500                 return -EINVAL;
1501         }
1502         return ret ? ret : count;
1503 }
1504
1505 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
1506                                         const char __user *user_buf,
1507                                         size_t count, loff_t *ppos) {
1508
1509         struct iwl_priv *priv = file->private_data;
1510         char buf[8];
1511         int buf_size;
1512         int flush;
1513
1514         memset(buf, 0, sizeof(buf));
1515         buf_size = min(count, sizeof(buf) -  1);
1516         if (copy_from_user(buf, user_buf, buf_size))
1517                 return -EFAULT;
1518         if (sscanf(buf, "%d", &flush) != 1)
1519                 return -EINVAL;
1520
1521         if (iwl_is_rfkill(priv))
1522                 return -EFAULT;
1523
1524         priv->cfg->ops->lib->dev_txfifo_flush(priv, IWL_DROP_ALL);
1525
1526         return count;
1527 }
1528
1529 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1530                                         char __user *user_buf,
1531                                         size_t count, loff_t *ppos)
1532 {
1533         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1534
1535         return priv->cfg->ops->lib->debugfs_ops.bt_stats_read(file,
1536                         user_buf, count, ppos);
1537 }
1538
1539 static ssize_t iwl_dbgfs_wd_timeout_write(struct file *file,
1540                                         const char __user *user_buf,
1541                                         size_t count, loff_t *ppos) {
1542
1543         struct iwl_priv *priv = file->private_data;
1544         char buf[8];
1545         int buf_size;
1546         int timeout;
1547
1548         memset(buf, 0, sizeof(buf));
1549         buf_size = min(count, sizeof(buf) -  1);
1550         if (copy_from_user(buf, user_buf, buf_size))
1551                 return -EFAULT;
1552         if (sscanf(buf, "%d", &timeout) != 1)
1553                 return -EINVAL;
1554         if (timeout < 0 || timeout > IWL_MAX_WD_TIMEOUT)
1555                 timeout = IWL_DEF_WD_TIMEOUT;
1556
1557         priv->cfg->base_params->wd_timeout = timeout;
1558         iwl_setup_watchdog(priv);
1559         return count;
1560 }
1561
1562 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
1563                                         char __user *user_buf,
1564                                         size_t count, loff_t *ppos) {
1565
1566         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1567         int pos = 0;
1568         char buf[200];
1569         const size_t bufsz = sizeof(buf);
1570
1571         if (!priv->bt_enable_flag) {
1572                 pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
1573                 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1574         }
1575         pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
1576                 priv->bt_enable_flag);
1577         pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
1578                 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
1579         pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
1580                          "last traffic notif: %d\n",
1581                 priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
1582         pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
1583                          "kill_ack_mask: %x, kill_cts_mask: %x\n",
1584                 priv->bt_ch_announce, priv->kill_ack_mask,
1585                 priv->kill_cts_mask);
1586
1587         pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
1588         switch (priv->bt_traffic_load) {
1589         case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
1590                 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
1591                 break;
1592         case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
1593                 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
1594                 break;
1595         case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
1596                 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
1597                 break;
1598         case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
1599         default:
1600                 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
1601                 break;
1602         }
1603
1604         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1605 }
1606
1607 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
1608                                         char __user *user_buf,
1609                                         size_t count, loff_t *ppos)
1610 {
1611         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1612
1613         int pos = 0;
1614         char buf[40];
1615         const size_t bufsz = sizeof(buf);
1616
1617         if (priv->cfg->ht_params)
1618                 pos += scnprintf(buf + pos, bufsz - pos,
1619                          "use %s for aggregation\n",
1620                          (priv->cfg->ht_params->use_rts_for_aggregation) ?
1621                                 "rts/cts" : "cts-to-self");
1622         else
1623                 pos += scnprintf(buf + pos, bufsz - pos, "N/A");
1624
1625         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1626 }
1627
1628 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
1629                                         const char __user *user_buf,
1630                                         size_t count, loff_t *ppos) {
1631
1632         struct iwl_priv *priv = file->private_data;
1633         char buf[8];
1634         int buf_size;
1635         int rts;
1636
1637         if (!priv->cfg->ht_params)
1638                 return -EINVAL;
1639
1640         memset(buf, 0, sizeof(buf));
1641         buf_size = min(count, sizeof(buf) -  1);
1642         if (copy_from_user(buf, user_buf, buf_size))
1643                 return -EFAULT;
1644         if (sscanf(buf, "%d", &rts) != 1)
1645                 return -EINVAL;
1646         if (rts)
1647                 priv->cfg->ht_params->use_rts_for_aggregation = true;
1648         else
1649                 priv->cfg->ht_params->use_rts_for_aggregation = false;
1650         return count;
1651 }
1652
1653 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1654                                         char __user *user_buf,
1655                                         size_t count, loff_t *ppos)
1656 {
1657         struct iwl_priv *priv = file->private_data;
1658
1659         if (priv->cfg->ops->lib->debugfs_ops.reply_tx_error)
1660                 return priv->cfg->ops->lib->debugfs_ops.reply_tx_error(
1661                         file, user_buf, count, ppos);
1662         else
1663                 return -ENODATA;
1664 }
1665 DEBUGFS_READ_FILE_OPS(rx_statistics);
1666 DEBUGFS_READ_FILE_OPS(tx_statistics);
1667 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
1668 DEBUGFS_READ_FILE_OPS(rx_queue);
1669 DEBUGFS_READ_FILE_OPS(tx_queue);
1670 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
1671 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
1672 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
1673 DEBUGFS_READ_FILE_OPS(sensitivity);
1674 DEBUGFS_READ_FILE_OPS(chain_noise);
1675 DEBUGFS_READ_FILE_OPS(power_save_status);
1676 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
1677 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
1678 DEBUGFS_WRITE_FILE_OPS(csr);
1679 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
1680 DEBUGFS_READ_FILE_OPS(fh_reg);
1681 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
1682 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
1683 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
1684 DEBUGFS_READ_FILE_OPS(rxon_flags);
1685 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
1686 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
1687 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
1688 DEBUGFS_WRITE_FILE_OPS(wd_timeout);
1689 DEBUGFS_READ_FILE_OPS(bt_traffic);
1690 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
1691 DEBUGFS_READ_FILE_OPS(reply_tx_error);
1692
1693 /*
1694  * Create the debugfs files and directories
1695  *
1696  */
1697 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
1698 {
1699         struct dentry *phyd = priv->hw->wiphy->debugfsdir;
1700         struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
1701
1702         dir_drv = debugfs_create_dir(name, phyd);
1703         if (!dir_drv)
1704                 return -ENOMEM;
1705
1706         priv->debugfs_dir = dir_drv;
1707
1708         dir_data = debugfs_create_dir("data", dir_drv);
1709         if (!dir_data)
1710                 goto err;
1711         dir_rf = debugfs_create_dir("rf", dir_drv);
1712         if (!dir_rf)
1713                 goto err;
1714         dir_debug = debugfs_create_dir("debug", dir_drv);
1715         if (!dir_debug)
1716                 goto err;
1717
1718         DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
1719         DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
1720         DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR);
1721         DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
1722         DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
1723         DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
1724         DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
1725         DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
1726         DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
1727         DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
1728         DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
1729         DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
1730         DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
1731         DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
1732         DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
1733         DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
1734         DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
1735         DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
1736         DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
1737         DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
1738         DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
1739         DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
1740         DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
1741         DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
1742         DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
1743         DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
1744         DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
1745         DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
1746         if (priv->cfg->ops->lib->dev_txfifo_flush)
1747                 DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
1748         DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
1749
1750         DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
1751         DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
1752         if (priv->cfg->base_params->ucode_tracing)
1753                 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
1754         DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
1755         DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
1756         DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
1757         DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
1758         DEBUGFS_ADD_FILE(wd_timeout, dir_debug, S_IWUSR);
1759         if (iwl_advanced_bt_coexist(priv))
1760                 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
1761         DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
1762                          &priv->disable_sens_cal);
1763         DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
1764                          &priv->disable_chain_noise_cal);
1765         return 0;
1766
1767 err:
1768         IWL_ERR(priv, "Can't create the debugfs directory\n");
1769         iwl_dbgfs_unregister(priv);
1770         return -ENOMEM;
1771 }
1772
1773 /**
1774  * Remove the debugfs files and directories
1775  *
1776  */
1777 void iwl_dbgfs_unregister(struct iwl_priv *priv)
1778 {
1779         if (!priv->debugfs_dir)
1780                 return;
1781
1782         debugfs_remove_recursive(priv->debugfs_dir);
1783         priv->debugfs_dir = NULL;
1784 }
1785
1786
1787