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 #define BYTE1_MASK 0x000000ff;
 211 #define BYTE2_MASK 0x0000ffff;
 212 #define BYTE3_MASK 0x00ffffff;
 213 static ssize_t iwl_dbgfs_sram_read(struct file *file,
 214                                         char __user *user_buf,
 215                                         size_t count, loff_t *ppos)
 216 {
 217         u32 val;
 218         char *buf;
 219         ssize_t ret;
 220         int i;
 221         int pos = 0;
 222         struct iwl_priv *priv = file->private_data;
 223         size_t bufsz;
 224
 225         /* default is to dump the entire data segment */
 226         if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
 227                 priv->dbgfs_sram_offset = 0x800000;
 228                 if (priv->ucode_type == UCODE_INIT)
 229                         priv->dbgfs_sram_len = priv->ucode_init_data.len;
 230                 else
 231                         priv->dbgfs_sram_len = priv->ucode_data.len;
 232         }
 233         bufsz =  30 + priv->dbgfs_sram_len * sizeof(char) * 10;
 234         buf = kmalloc(bufsz, GFP_KERNEL);
 235         if (!buf)
 236                 return -ENOMEM;
 237         pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
 238                         priv->dbgfs_sram_len);
 239         pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
 240                         priv->dbgfs_sram_offset);
 241         for (i = priv->dbgfs_sram_len; i > 0; i -= 4) {
 242                 val = iwl_read_targ_mem(priv, priv->dbgfs_sram_offset + \
 243                                         priv->dbgfs_sram_len - i);
 244                 if (i < 4) {
 245                         switch (i) {
 246                         case 1:
 247                                 val &= BYTE1_MASK;
 248                                 break;
 249                         case 2:
 250                                 val &= BYTE2_MASK;
 251                                 break;
 252                         case 3:
 253                                 val &= BYTE3_MASK;
 254                                 break;
 255                         }
 256                 }
 257                 if (!(i % 16))
 258                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 259                 pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
 260         }
 261         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 262
 263         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 264         kfree(buf);
 265         return ret;
 266 }
 267
 268 static ssize_t iwl_dbgfs_sram_write(struct file *file,
 269                                         const char __user *user_buf,
 270                                         size_t count, loff_t *ppos)
 271 {
 272         struct iwl_priv *priv = file->private_data;
 273         char buf[64];
 274         int buf_size;
 275         u32 offset, len;
 276
 277         memset(buf, 0, sizeof(buf));
 278         buf_size = min(count, sizeof(buf) -  1);
 279         if (copy_from_user(buf, user_buf, buf_size))
 280                 return -EFAULT;
 281
 282         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 283                 priv->dbgfs_sram_offset = offset;
 284                 priv->dbgfs_sram_len = len;
 285         } else {
 286                 priv->dbgfs_sram_offset = 0;
 287                 priv->dbgfs_sram_len = 0;
 288         }
 289
 290         return count;
 291 }
 292
 293 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 294                                         size_t count, loff_t *ppos)
 295 {
 296         struct iwl_priv *priv = file->private_data;
 297         struct iwl_station_entry *station;
 298         int max_sta = priv->hw_params.max_stations;
 299         char *buf;
 300         int i, j, pos = 0;
 301         ssize_t ret;
 302         /* Add 30 for initial string */
 303         const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
 304
 305         buf = kmalloc(bufsz, GFP_KERNEL);
 306         if (!buf)
 307                 return -ENOMEM;
 308
 309         pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
 310                         priv->num_stations);
 311
 312         for (i = 0; i < max_sta; i++) {
 313                 station = &priv->stations[i];
 314                 if (!station->used)
 315                         continue;
 316                 pos += scnprintf(buf + pos, bufsz - pos,
 317                                  "station %d - addr: %pM, flags: %#x\n",
 318                                  i, station->sta.sta.addr,
 319                                  station->sta.station_flags_msk);
 320                 pos += scnprintf(buf + pos, bufsz - pos,
 321                                 "TID\tseq_num\ttxq_id\tframes\ttfds\t");
 322                 pos += scnprintf(buf + pos, bufsz - pos,
 323                                 "start_idx\tbitmap\t\t\trate_n_flags\n");
 324
 325                 for (j = 0; j < MAX_TID_COUNT; j++) {
 326                         pos += scnprintf(buf + pos, bufsz - pos,
 327                                 "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
 328                                 j, station->tid[j].seq_number,
 329                                 station->tid[j].agg.txq_id,
 330                                 station->tid[j].agg.frame_count,
 331                                 station->tid[j].tfds_in_queue,
 332                                 station->tid[j].agg.start_idx,
 333                                 station->tid[j].agg.bitmap,
 334                                 station->tid[j].agg.rate_n_flags);
 335
 336                         if (station->tid[j].agg.wait_for_ba)
 337                                 pos += scnprintf(buf + pos, bufsz - pos,
 338                                                  " - waitforba");
 339                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 340                 }
 341
 342                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 343         }
 344
 345         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 346         kfree(buf);
 347         return ret;
 348 }
 349
 350 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
 351                                        char __user *user_buf,
 352                                        size_t count,
 353                                        loff_t *ppos)
 354 {
 355         ssize_t ret;
 356         struct iwl_priv *priv = file->private_data;
 357         int pos = 0, ofs = 0, buf_size = 0;
 358         const u8 *ptr;
 359         char *buf;
 360         u16 eeprom_ver;
 361         size_t eeprom_len = priv->cfg->base_params->eeprom_size;
 362         buf_size = 4 * eeprom_len + 256;
 363
 364         if (eeprom_len % 16) {
 365                 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
 366                 return -ENODATA;
 367         }
 368
 369         ptr = priv->eeprom;
 370         if (!ptr) {
 371                 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
 372                 return -ENOMEM;
 373         }
 374
 375         /* 4 characters for byte 0xYY */
 376         buf = kzalloc(buf_size, GFP_KERNEL);
 377         if (!buf) {
 378                 IWL_ERR(priv, "Can not allocate Buffer\n");
 379                 return -ENOMEM;
 380         }
 381         eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
 382         pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
 383                         "version: 0x%x\n",
 384                         (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
 385                          ? "OTP" : "EEPROM", eeprom_ver);
 386         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
 387                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
 388                 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
 389                                    buf_size - pos, 0);
 390                 pos += strlen(buf + pos);
 391                 if (buf_size - pos > 0)
 392                         buf[pos++] = '\n';
 393         }
 394
 395         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 396         kfree(buf);
 397         return ret;
 398 }
 399
 400 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
 401                                          char __user *user_buf,
 402                                          size_t count, loff_t *ppos)
 403 {
 404         struct iwl_priv *priv = file->private_data;
 405         char *buf;
 406         int pos = 0;
 407         ssize_t ret = -ENOMEM;
 408
 409         ret = pos = priv->cfg->ops->lib->dump_nic_event_log(
 410                                         priv, true, &buf, true);
 411         if (buf) {
 412                 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 413                 kfree(buf);
 414         }
 415         return ret;
 416 }
 417
 418 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
 419                                         const char __user *user_buf,
 420                                         size_t count, loff_t *ppos)
 421 {
 422         struct iwl_priv *priv = file->private_data;
 423         u32 event_log_flag;
 424         char buf[8];
 425         int buf_size;
 426
 427         memset(buf, 0, sizeof(buf));
 428         buf_size = min(count, sizeof(buf) -  1);
 429         if (copy_from_user(buf, user_buf, buf_size))
 430                 return -EFAULT;
 431         if (sscanf(buf, "%d", &event_log_flag) != 1)
 432                 return -EFAULT;
 433         if (event_log_flag == 1)
 434                 priv->cfg->ops->lib->dump_nic_event_log(priv, true,
 435                                                         NULL, false);
 436
 437         return count;
 438 }
 439
 440
 441
 442 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 443                                        size_t count, loff_t *ppos)
 444 {
 445         struct iwl_priv *priv = file->private_data;
 446         struct ieee80211_channel *channels = NULL;
 447         const struct ieee80211_supported_band *supp_band = NULL;
 448         int pos = 0, i, bufsz = PAGE_SIZE;
 449         char *buf;
 450         ssize_t ret;
 451
 452         if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
 453                 return -EAGAIN;
 454
 455         buf = kzalloc(bufsz, GFP_KERNEL);
 456         if (!buf) {
 457                 IWL_ERR(priv, "Can not allocate Buffer\n");
 458                 return -ENOMEM;
 459         }
 460
 461         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
 462         if (supp_band) {
 463                 channels = supp_band->channels;
 464
 465                 pos += scnprintf(buf + pos, bufsz - pos,
 466                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
 467                                 supp_band->n_channels);
 468
 469                 for (i = 0; i < supp_band->n_channels; i++)
 470                         pos += scnprintf(buf + pos, bufsz - pos,
 471                                         "%d: %ddBm: BSS%s%s, %s.\n",
 472                                         channels[i].hw_value,
 473                                         channels[i].max_power,
 474                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 475                                         " (IEEE 802.11h required)" : "",
 476                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 477                                         || (channels[i].flags &
 478                                         IEEE80211_CHAN_RADAR)) ? "" :
 479                                         ", IBSS",
 480                                         channels[i].flags &
 481                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 482                                         "passive only" : "active/passive");
 483         }
 484         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
 485         if (supp_band) {
 486                 channels = supp_band->channels;
 487
 488                 pos += scnprintf(buf + pos, bufsz - pos,
 489                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
 490                                 supp_band->n_channels);
 491
 492                 for (i = 0; i < supp_band->n_channels; i++)
 493                         pos += scnprintf(buf + pos, bufsz - pos,
 494                                         "%d: %ddBm: BSS%s%s, %s.\n",
 495                                         channels[i].hw_value,
 496                                         channels[i].max_power,
 497                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 498                                         " (IEEE 802.11h required)" : "",
 499                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 500                                         || (channels[i].flags &
 501                                         IEEE80211_CHAN_RADAR)) ? "" :
 502                                         ", IBSS",
 503                                         channels[i].flags &
 504                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 505                                         "passive only" : "active/passive");
 506         }
 507         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 508         kfree(buf);
 509         return ret;
 510 }
 511
 512 static ssize_t iwl_dbgfs_status_read(struct file *file,
 513                                                 char __user *user_buf,
 514                                                 size_t count, loff_t *ppos) {
 515
 516         struct iwl_priv *priv = file->private_data;
 517         char buf[512];
 518         int pos = 0;
 519         const size_t bufsz = sizeof(buf);
 520
 521         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
 522                 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
 523         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
 524                 test_bit(STATUS_INT_ENABLED, &priv->status));
 525         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 526                 test_bit(STATUS_RF_KILL_HW, &priv->status));
 527         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 528                 test_bit(STATUS_CT_KILL, &priv->status));
 529         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
 530                 test_bit(STATUS_INIT, &priv->status));
 531         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 532                 test_bit(STATUS_ALIVE, &priv->status));
 533         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 534                 test_bit(STATUS_READY, &priv->status));
 535         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
 536                 test_bit(STATUS_TEMPERATURE, &priv->status));
 537         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
 538                 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
 539         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 540                 test_bit(STATUS_EXIT_PENDING, &priv->status));
 541         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 542                 test_bit(STATUS_STATISTICS, &priv->status));
 543         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 544                 test_bit(STATUS_SCANNING, &priv->status));
 545         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 546                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
 547         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 548                 test_bit(STATUS_SCAN_HW, &priv->status));
 549         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 550                 test_bit(STATUS_POWER_PMI, &priv->status));
 551         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 552                 test_bit(STATUS_FW_ERROR, &priv->status));
 553         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 554 }
 555
 556 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
 557                                         char __user *user_buf,
 558                                         size_t count, loff_t *ppos) {
 559
 560         struct iwl_priv *priv = file->private_data;
 561         int pos = 0;
 562         int cnt = 0;
 563         char *buf;
 564         int bufsz = 24 * 64; /* 24 items * 64 char per item */
 565         ssize_t ret;
 566
 567         buf = kzalloc(bufsz, GFP_KERNEL);
 568         if (!buf) {
 569                 IWL_ERR(priv, "Can not allocate Buffer\n");
 570                 return -ENOMEM;
 571         }
 572
 573         pos += scnprintf(buf + pos, bufsz - pos,
 574                         "Interrupt Statistics Report:\n");
 575
 576         pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
 577                 priv->isr_stats.hw);
 578         pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
 579                 priv->isr_stats.sw);
 580         if (priv->isr_stats.sw || priv->isr_stats.hw) {
 581                 pos += scnprintf(buf + pos, bufsz - pos,
 582                         "\tLast Restarting Code:  0x%X\n",
 583                         priv->isr_stats.err_code);
 584         }
 585 #ifdef CONFIG_IWLWIFI_DEBUG
 586         pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
 587                 priv->isr_stats.sch);
 588         pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
 589                 priv->isr_stats.alive);
 590 #endif
 591         pos += scnprintf(buf + pos, bufsz - pos,
 592                 "HW RF KILL switch toggled:\t %u\n",
 593                 priv->isr_stats.rfkill);
 594
 595         pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
 596                 priv->isr_stats.ctkill);
 597
 598         pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
 599                 priv->isr_stats.wakeup);
 600
 601         pos += scnprintf(buf + pos, bufsz - pos,
 602                 "Rx command responses:\t\t %u\n",
 603                 priv->isr_stats.rx);
 604         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 605                 if (priv->isr_stats.rx_handlers[cnt] > 0)
 606                         pos += scnprintf(buf + pos, bufsz - pos,
 607                                 "\tRx handler[%36s]:\t\t %u\n",
 608                                 get_cmd_string(cnt),
 609                                 priv->isr_stats.rx_handlers[cnt]);
 610         }
 611
 612         pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
 613                 priv->isr_stats.tx);
 614
 615         pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
 616                 priv->isr_stats.unhandled);
 617
 618         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 619         kfree(buf);
 620         return ret;
 621 }
 622
 623 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
 624                                          const char __user *user_buf,
 625                                          size_t count, loff_t *ppos)
 626 {
 627         struct iwl_priv *priv = file->private_data;
 628         char buf[8];
 629         int buf_size;
 630         u32 reset_flag;
 631
 632         memset(buf, 0, sizeof(buf));
 633         buf_size = min(count, sizeof(buf) -  1);
 634         if (copy_from_user(buf, user_buf, buf_size))
 635                 return -EFAULT;
 636         if (sscanf(buf, "%x", &reset_flag) != 1)
 637                 return -EFAULT;
 638         if (reset_flag == 0)
 639                 iwl_clear_isr_stats(priv);
 640
 641         return count;
 642 }
 643
 644 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 645                                        size_t count, loff_t *ppos)
 646 {
 647         struct iwl_priv *priv = file->private_data;
 648         struct iwl_rxon_context *ctx;
 649         int pos = 0, i;
 650         char buf[256 * NUM_IWL_RXON_CTX];
 651         const size_t bufsz = sizeof(buf);
 652
 653         for_each_context(priv, ctx) {
 654                 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
 655                                  ctx->ctxid);
 656                 for (i = 0; i < AC_NUM; i++) {
 657                         pos += scnprintf(buf + pos, bufsz - pos,
 658                                 "\tcw_min\tcw_max\taifsn\ttxop\n");
 659                         pos += scnprintf(buf + pos, bufsz - pos,
 660                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
 661                                 ctx->qos_data.def_qos_parm.ac[i].cw_min,
 662                                 ctx->qos_data.def_qos_parm.ac[i].cw_max,
 663                                 ctx->qos_data.def_qos_parm.ac[i].aifsn,
 664                                 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
 665                 }
 666                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 667         }
 668         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 669 }
 670
 671 static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
 672                                   size_t count, loff_t *ppos)
 673 {
 674         struct iwl_priv *priv = file->private_data;
 675         int pos = 0;
 676         char buf[256];
 677         const size_t bufsz = sizeof(buf);
 678
 679         pos += scnprintf(buf + pos, bufsz - pos,
 680                          "allow blinking: %s\n",
 681                          (priv->allow_blinking) ? "True" : "False");
 682         if (priv->allow_blinking) {
 683                 pos += scnprintf(buf + pos, bufsz - pos,
 684                                  "Led blinking rate: %u\n",
 685                                  priv->last_blink_rate);
 686                 pos += scnprintf(buf + pos, bufsz - pos,
 687                                  "Last blink time: %lu\n",
 688                                  priv->last_blink_time);
 689         }
 690
 691         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 692 }
 693
 694 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 695                                 char __user *user_buf,
 696                                 size_t count, loff_t *ppos)
 697 {
 698         struct iwl_priv *priv = file->private_data;
 699         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 700         struct iwl_tt_restriction *restriction;
 701         char buf[100];
 702         int pos = 0;
 703         const size_t bufsz = sizeof(buf);
 704
 705         pos += scnprintf(buf + pos, bufsz - pos,
 706                         "Thermal Throttling Mode: %s\n",
 707                         tt->advanced_tt ? "Advance" : "Legacy");
 708         pos += scnprintf(buf + pos, bufsz - pos,
 709                         "Thermal Throttling State: %d\n",
 710                         tt->state);
 711         if (tt->advanced_tt) {
 712                 restriction = tt->restriction + tt->state;
 713                 pos += scnprintf(buf + pos, bufsz - pos,
 714                                 "Tx mode: %d\n",
 715                                 restriction->tx_stream);
 716                 pos += scnprintf(buf + pos, bufsz - pos,
 717                                 "Rx mode: %d\n",
 718                                 restriction->rx_stream);
 719                 pos += scnprintf(buf + pos, bufsz - pos,
 720                                 "HT mode: %d\n",
 721                                 restriction->is_ht);
 722         }
 723         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 724 }
 725
 726 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 727                                          const char __user *user_buf,
 728                                          size_t count, loff_t *ppos)
 729 {
 730         struct iwl_priv *priv = file->private_data;
 731         char buf[8];
 732         int buf_size;
 733         int ht40;
 734
 735         memset(buf, 0, sizeof(buf));
 736         buf_size = min(count, sizeof(buf) -  1);
 737         if (copy_from_user(buf, user_buf, buf_size))
 738                 return -EFAULT;
 739         if (sscanf(buf, "%d", &ht40) != 1)
 740                 return -EFAULT;
 741         if (!iwl_is_any_associated(priv))
 742                 priv->disable_ht40 = ht40 ? true : false;
 743         else {
 744                 IWL_ERR(priv, "Sta associated with AP - "
 745                         "Change to 40MHz channel support is not allowed\n");
 746                 return -EINVAL;
 747         }
 748
 749         return count;
 750 }
 751
 752 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 753                                          char __user *user_buf,
 754                                          size_t count, loff_t *ppos)
 755 {
 756         struct iwl_priv *priv = file->private_data;
 757         char buf[100];
 758         int pos = 0;
 759         const size_t bufsz = sizeof(buf);
 760
 761         pos += scnprintf(buf + pos, bufsz - pos,
 762                         "11n 40MHz Mode: %s\n",
 763                         priv->disable_ht40 ? "Disabled" : "Enabled");
 764         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 765 }
 766
 767 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 768                                                     const char __user *user_buf,
 769                                                     size_t count, loff_t *ppos)
 770 {
 771         struct iwl_priv *priv = file->private_data;
 772         char buf[8];
 773         int buf_size;
 774         int value;
 775
 776         memset(buf, 0, sizeof(buf));
 777         buf_size = min(count, sizeof(buf) -  1);
 778         if (copy_from_user(buf, user_buf, buf_size))
 779                 return -EFAULT;
 780
 781         if (sscanf(buf, "%d", &value) != 1)
 782                 return -EINVAL;
 783
 784         /*
 785          * Our users expect 0 to be "CAM", but 0 isn't actually
 786          * valid here. However, let's not confuse them and present
 787          * IWL_POWER_INDEX_1 as "1", not "0".
 788          */
 789         if (value == 0)
 790                 return -EINVAL;
 791         else if (value > 0)
 792                 value -= 1;
 793
 794         if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 795                 return -EINVAL;
 796
 797         if (!iwl_is_ready_rf(priv))
 798                 return -EAGAIN;
 799
 800         priv->power_data.debug_sleep_level_override = value;
 801
 802         mutex_lock(&priv->mutex);
 803         iwl_power_update_mode(priv, true);
 804         mutex_unlock(&priv->mutex);
 805
 806         return count;
 807 }
 808
 809 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 810                                                    char __user *user_buf,
 811                                                    size_t count, loff_t *ppos)
 812 {
 813         struct iwl_priv *priv = file->private_data;
 814         char buf[10];
 815         int pos, value;
 816         const size_t bufsz = sizeof(buf);
 817
 818         /* see the write function */
 819         value = priv->power_data.debug_sleep_level_override;
 820         if (value >= 0)
 821                 value += 1;
 822
 823         pos = scnprintf(buf, bufsz, "%d\n", value);
 824         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 825 }
 826
 827 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 828                                                     char __user *user_buf,
 829                                                     size_t count, loff_t *ppos)
 830 {
 831         struct iwl_priv *priv = file->private_data;
 832         char buf[200];
 833         int pos = 0, i;
 834         const size_t bufsz = sizeof(buf);
 835         struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 836
 837         pos += scnprintf(buf + pos, bufsz - pos,
 838                          "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 839         pos += scnprintf(buf + pos, bufsz - pos,
 840                          "RX/TX timeout: %d/%d usec\n",
 841                          le32_to_cpu(cmd->rx_data_timeout),
 842                          le32_to_cpu(cmd->tx_data_timeout));
 843         for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 844                 pos += scnprintf(buf + pos, bufsz - pos,
 845                                  "sleep_interval[%d]: %d\n", i,
 846                                  le32_to_cpu(cmd->sleep_interval[i]));
 847
 848         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 849 }
 850
 851 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 852 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
 853 DEBUGFS_READ_FILE_OPS(nvm);
 854 DEBUGFS_READ_FILE_OPS(stations);
 855 DEBUGFS_READ_FILE_OPS(channels);
 856 DEBUGFS_READ_FILE_OPS(status);
 857 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 858 DEBUGFS_READ_FILE_OPS(qos);
 859 DEBUGFS_READ_FILE_OPS(led);
 860 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 861 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 862 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 863 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 864
 865 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
 866                                          char __user *user_buf,
 867                                          size_t count, loff_t *ppos)
 868 {
 869         struct iwl_priv *priv = file->private_data;
 870         int pos = 0, ofs = 0;
 871         int cnt = 0, entry;
 872         struct iwl_tx_queue *txq;
 873         struct iwl_queue *q;
 874         struct iwl_rx_queue *rxq = &priv->rxq;
 875         char *buf;
 876         int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
 877                 (priv->cfg->base_params->num_of_queues * 32 * 8) + 400;
 878         const u8 *ptr;
 879         ssize_t ret;
 880
 881         if (!priv->txq) {
 882                 IWL_ERR(priv, "txq not ready\n");
 883                 return -EAGAIN;
 884         }
 885         buf = kzalloc(bufsz, GFP_KERNEL);
 886         if (!buf) {
 887                 IWL_ERR(priv, "Can not allocate buffer\n");
 888                 return -ENOMEM;
 889         }
 890         pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
 891         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 892                 txq = &priv->txq[cnt];
 893                 q = &txq->q;
 894                 pos += scnprintf(buf + pos, bufsz - pos,
 895                                 "q[%d]: read_ptr: %u, write_ptr: %u\n",
 896                                 cnt, q->read_ptr, q->write_ptr);
 897         }
 898         if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
 899                 ptr = priv->tx_traffic;
 900                 pos += scnprintf(buf + pos, bufsz - pos,
 901                                 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
 902                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 903                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 904                              entry++,  ofs += 16) {
 905                                 pos += scnprintf(buf + pos, bufsz - pos,
 906                                                 "0x%.4x ", ofs);
 907                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 908                                                    buf + pos, bufsz - pos, 0);
 909                                 pos += strlen(buf + pos);
 910                                 if (bufsz - pos > 0)
 911                                         buf[pos++] = '\n';
 912                         }
 913                 }
 914         }
 915
 916         pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
 917         pos += scnprintf(buf + pos, bufsz - pos,
 918                         "read: %u, write: %u\n",
 919                          rxq->read, rxq->write);
 920
 921         if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
 922                 ptr = priv->rx_traffic;
 923                 pos += scnprintf(buf + pos, bufsz - pos,
 924                                 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
 925                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 926                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 927                              entry++,  ofs += 16) {
 928                                 pos += scnprintf(buf + pos, bufsz - pos,
 929                                                 "0x%.4x ", ofs);
 930                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 931                                                    buf + pos, bufsz - pos, 0);
 932                                 pos += strlen(buf + pos);
 933                                 if (bufsz - pos > 0)
 934                                         buf[pos++] = '\n';
 935                         }
 936                 }
 937         }
 938
 939         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 940         kfree(buf);
 941         return ret;
 942 }
 943
 944 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
 945                                          const char __user *user_buf,
 946                                          size_t count, loff_t *ppos)
 947 {
 948         struct iwl_priv *priv = file->private_data;
 949         char buf[8];
 950         int buf_size;
 951         int traffic_log;
 952
 953         memset(buf, 0, sizeof(buf));
 954         buf_size = min(count, sizeof(buf) -  1);
 955         if (copy_from_user(buf, user_buf, buf_size))
 956                 return -EFAULT;
 957         if (sscanf(buf, "%d", &traffic_log) != 1)
 958                 return -EFAULT;
 959         if (traffic_log == 0)
 960                 iwl_reset_traffic_log(priv);
 961
 962         return count;
 963 }
 964
 965 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
 966                                                 char __user *user_buf,
 967                                                 size_t count, loff_t *ppos) {
 968
 969         struct iwl_priv *priv = file->private_data;
 970         struct iwl_tx_queue *txq;
 971         struct iwl_queue *q;
 972         char *buf;
 973         int pos = 0;
 974         int cnt;
 975         int ret;
 976         const size_t bufsz = sizeof(char) * 64 *
 977                                 priv->cfg->base_params->num_of_queues;
 978
 979         if (!priv->txq) {
 980                 IWL_ERR(priv, "txq not ready\n");
 981                 return -EAGAIN;
 982         }
 983         buf = kzalloc(bufsz, GFP_KERNEL);
 984         if (!buf)
 985                 return -ENOMEM;
 986
 987         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 988                 txq = &priv->txq[cnt];
 989                 q = &txq->q;
 990                 pos += scnprintf(buf + pos, bufsz - pos,
 991                                 "hwq %.2d: read=%u write=%u stop=%d"
 992                                 " swq_id=%#.2x (ac %d/hwq %d)\n",
 993                                 cnt, q->read_ptr, q->write_ptr,
 994                                 !!test_bit(cnt, priv->queue_stopped),
 995                                 txq->swq_id,
 996                                 txq->swq_id & 0x80 ? txq->swq_id & 3 :
 997                                 txq->swq_id,
 998                                 txq->swq_id & 0x80 ? (txq->swq_id >> 2) &
 999                                 0x1f : txq->swq_id);
1000                 if (cnt >= 4)
1001                         continue;
1002                 /* for the ACs, display the stop count too */
1003                 pos += scnprintf(buf + pos, bufsz - pos,
1004                                 "        stop-count: %d\n",
1005                                 atomic_read(&priv->queue_stop_count[cnt]));
1006         }
1007         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1008         kfree(buf);
1009         return ret;
1010 }
1011
1012 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
1013                                                 char __user *user_buf,
1014                                                 size_t count, loff_t *ppos) {
1015
1016         struct iwl_priv *priv = file->private_data;
1017         struct iwl_rx_queue *rxq = &priv->rxq;
1018         char buf[256];
1019         int pos = 0;
1020         const size_t bufsz = sizeof(buf);
1021
1022         pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
1023                                                 rxq->read);
1024         pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
1025                                                 rxq->write);
1026         pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1027                                                 rxq->free_count);
1028         if (rxq->rb_stts) {
1029                 pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1030                          le16_to_cpu(rxq->rb_stts->closed_rb_num) &  0x0FFF);
1031         } else {
1032                 pos += scnprintf(buf + pos, bufsz - pos,
1033                                         "closed_rb_num: Not Allocated\n");
1034         }
1035         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1036 }
1037
1038 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1039                                         char __user *user_buf,
1040                                         size_t count, loff_t *ppos)
1041 {
1042         struct iwl_priv *priv = file->private_data;
1043         return priv->cfg->ops->lib->debugfs_ops.rx_stats_read(file,
1044                         user_buf, count, ppos);
1045 }
1046
1047 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1048                                         char __user *user_buf,
1049                                         size_t count, loff_t *ppos)
1050 {
1051         struct iwl_priv *priv = file->private_data;
1052         return priv->cfg->ops->lib->debugfs_ops.tx_stats_read(file,
1053                         user_buf, count, ppos);
1054 }
1055
1056 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1057                                         char __user *user_buf,
1058                                         size_t count, loff_t *ppos)
1059 {
1060         struct iwl_priv *priv = file->private_data;
1061         return priv->cfg->ops->lib->debugfs_ops.general_stats_read(file,
1062                         user_buf, count, ppos);
1063 }
1064
1065 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1066                                         char __user *user_buf,
1067                                         size_t count, loff_t *ppos) {
1068
1069         struct iwl_priv *priv = file->private_data;
1070         int pos = 0;
1071         int cnt = 0;
1072         char *buf;
1073         int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1074         ssize_t ret;
1075         struct iwl_sensitivity_data *data;
1076
1077         data = &priv->sensitivity_data;
1078         buf = kzalloc(bufsz, GFP_KERNEL);
1079         if (!buf) {
1080                 IWL_ERR(priv, "Can not allocate Buffer\n");
1081                 return -ENOMEM;
1082         }
1083
1084         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1085                         data->auto_corr_ofdm);
1086         pos += scnprintf(buf + pos, bufsz - pos,
1087                         "auto_corr_ofdm_mrc:\t\t %u\n",
1088                         data->auto_corr_ofdm_mrc);
1089         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1090                         data->auto_corr_ofdm_x1);
1091         pos += scnprintf(buf + pos, bufsz - pos,
1092                         "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1093                         data->auto_corr_ofdm_mrc_x1);
1094         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1095                         data->auto_corr_cck);
1096         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1097                         data->auto_corr_cck_mrc);
1098         pos += scnprintf(buf + pos, bufsz - pos,
1099                         "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1100                         data->last_bad_plcp_cnt_ofdm);
1101         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1102                         data->last_fa_cnt_ofdm);
1103         pos += scnprintf(buf + pos, bufsz - pos,
1104                         "last_bad_plcp_cnt_cck:\t\t %u\n",
1105                         data->last_bad_plcp_cnt_cck);
1106         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1107                         data->last_fa_cnt_cck);
1108         pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1109                         data->nrg_curr_state);
1110         pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1111                         data->nrg_prev_state);
1112         pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1113         for (cnt = 0; cnt < 10; cnt++) {
1114                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1115                                 data->nrg_value[cnt]);
1116         }
1117         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1118         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1119         for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1120                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1121                                 data->nrg_silence_rssi[cnt]);
1122         }
1123         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1124         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1125                         data->nrg_silence_ref);
1126         pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1127                         data->nrg_energy_idx);
1128         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1129                         data->nrg_silence_idx);
1130         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1131                         data->nrg_th_cck);
1132         pos += scnprintf(buf + pos, bufsz - pos,
1133                         "nrg_auto_corr_silence_diff:\t %u\n",
1134                         data->nrg_auto_corr_silence_diff);
1135         pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1136                         data->num_in_cck_no_fa);
1137         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1138                         data->nrg_th_ofdm);
1139
1140         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1141         kfree(buf);
1142         return ret;
1143 }
1144
1145
1146 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1147                                         char __user *user_buf,
1148                                         size_t count, loff_t *ppos) {
1149
1150         struct iwl_priv *priv = file->private_data;
1151         int pos = 0;
1152         int cnt = 0;
1153         char *buf;
1154         int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1155         ssize_t ret;
1156         struct iwl_chain_noise_data *data;
1157
1158         data = &priv->chain_noise_data;
1159         buf = kzalloc(bufsz, GFP_KERNEL);
1160         if (!buf) {
1161                 IWL_ERR(priv, "Can not allocate Buffer\n");
1162                 return -ENOMEM;
1163         }
1164
1165         pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1166                         data->active_chains);
1167         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1168                         data->chain_noise_a);
1169         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1170                         data->chain_noise_b);
1171         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1172                         data->chain_noise_c);
1173         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1174                         data->chain_signal_a);
1175         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1176                         data->chain_signal_b);
1177         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1178                         data->chain_signal_c);
1179         pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1180                         data->beacon_count);
1181
1182         pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1183         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1184                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1185                                 data->disconn_array[cnt]);
1186         }
1187         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1188         pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1189         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1190                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1191                                 data->delta_gain_code[cnt]);
1192         }
1193         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1194         pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1195                         data->radio_write);
1196         pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1197                         data->state);
1198
1199         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1200         kfree(buf);
1201         return ret;
1202 }
1203
1204 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1205                                                     char __user *user_buf,
1206                                                     size_t count, loff_t *ppos)
1207 {
1208         struct iwl_priv *priv = file->private_data;
1209         char buf[60];
1210         int pos = 0;
1211         const size_t bufsz = sizeof(buf);
1212         u32 pwrsave_status;
1213
1214         pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
1215                         CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1216
1217         pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1218         pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1219                 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1220                 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1221                 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1222                 "error");
1223
1224         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1225 }
1226
1227 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1228                                          const char __user *user_buf,
1229                                          size_t count, loff_t *ppos)
1230 {
1231         struct iwl_priv *priv = file->private_data;
1232         char buf[8];
1233         int buf_size;
1234         int clear;
1235
1236         memset(buf, 0, sizeof(buf));
1237         buf_size = min(count, sizeof(buf) -  1);
1238         if (copy_from_user(buf, user_buf, buf_size))
1239                 return -EFAULT;
1240         if (sscanf(buf, "%d", &clear) != 1)
1241                 return -EFAULT;
1242
1243         /* make request to uCode to retrieve statistics information */
1244         mutex_lock(&priv->mutex);
1245         iwl_send_statistics_request(priv, CMD_SYNC, true);
1246         mutex_unlock(&priv->mutex);
1247
1248         return count;
1249 }
1250
1251 static ssize_t iwl_dbgfs_csr_write(struct file *file,
1252                                          const char __user *user_buf,
1253                                          size_t count, loff_t *ppos)
1254 {
1255         struct iwl_priv *priv = file->private_data;
1256         char buf[8];
1257         int buf_size;
1258         int csr;
1259
1260         memset(buf, 0, sizeof(buf));
1261         buf_size = min(count, sizeof(buf) -  1);
1262         if (copy_from_user(buf, user_buf, buf_size))
1263                 return -EFAULT;
1264         if (sscanf(buf, "%d", &csr) != 1)
1265                 return -EFAULT;
1266
1267         if (priv->cfg->ops->lib->dump_csr)
1268                 priv->cfg->ops->lib->dump_csr(priv);
1269
1270         return count;
1271 }
1272
1273 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1274                                         char __user *user_buf,
1275                                         size_t count, loff_t *ppos) {
1276
1277         struct iwl_priv *priv = file->private_data;
1278         int pos = 0;
1279         char buf[128];
1280         const size_t bufsz = sizeof(buf);
1281
1282         pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1283                         priv->event_log.ucode_trace ? "On" : "Off");
1284         pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1285                         priv->event_log.non_wraps_count);
1286         pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1287                         priv->event_log.wraps_once_count);
1288         pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1289                         priv->event_log.wraps_more_count);
1290
1291         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1292 }
1293
1294 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1295                                          const char __user *user_buf,
1296                                          size_t count, loff_t *ppos)
1297 {
1298         struct iwl_priv *priv = file->private_data;
1299         char buf[8];
1300         int buf_size;
1301         int trace;
1302
1303         memset(buf, 0, sizeof(buf));
1304         buf_size = min(count, sizeof(buf) -  1);
1305         if (copy_from_user(buf, user_buf, buf_size))
1306                 return -EFAULT;
1307         if (sscanf(buf, "%d", &trace) != 1)
1308                 return -EFAULT;
1309
1310         if (trace) {
1311                 priv->event_log.ucode_trace = true;
1312                 /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
1313                 mod_timer(&priv->ucode_trace,
1314                         jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
1315         } else {
1316                 priv->event_log.ucode_trace = false;
1317                 del_timer_sync(&priv->ucode_trace);
1318         }
1319
1320         return count;
1321 }
1322
1323 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1324                                          char __user *user_buf,
1325                                          size_t count, loff_t *ppos) {
1326
1327         struct iwl_priv *priv = file->private_data;
1328         int len = 0;
1329         char buf[20];
1330
1331         len = sprintf(buf, "0x%04X\n",
1332                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1333         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1334 }
1335
1336 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1337                                                 char __user *user_buf,
1338                                                 size_t count, loff_t *ppos) {
1339
1340         struct iwl_priv *priv = file->private_data;
1341         int len = 0;
1342         char buf[20];
1343
1344         len = sprintf(buf, "0x%04X\n",
1345                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1346         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1347 }
1348
1349 static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
1350                                          char __user *user_buf,
1351                                          size_t count, loff_t *ppos)
1352 {
1353         struct iwl_priv *priv = file->private_data;
1354         char *buf;
1355         int pos = 0;
1356         ssize_t ret = -EFAULT;
1357
1358         if (priv->cfg->ops->lib->dump_fh) {
1359                 ret = pos = priv->cfg->ops->lib->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
1367         return ret;
1368 }
1369
1370 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1371                                         char __user *user_buf,
1372                                         size_t count, loff_t *ppos) {
1373
1374         struct iwl_priv *priv = file->private_data;
1375         int pos = 0;
1376         char buf[12];
1377         const size_t bufsz = sizeof(buf);
1378
1379         pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1380                         priv->missed_beacon_threshold);
1381
1382         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1383 }
1384
1385 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1386                                          const char __user *user_buf,
1387                                          size_t count, loff_t *ppos)
1388 {
1389         struct iwl_priv *priv = file->private_data;
1390         char buf[8];
1391         int buf_size;
1392         int missed;
1393
1394         memset(buf, 0, sizeof(buf));
1395         buf_size = min(count, sizeof(buf) -  1);
1396         if (copy_from_user(buf, user_buf, buf_size))
1397                 return -EFAULT;
1398         if (sscanf(buf, "%d", &missed) != 1)
1399                 return -EINVAL;
1400
1401         if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1402             missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1403                 priv->missed_beacon_threshold =
1404                         IWL_MISSED_BEACON_THRESHOLD_DEF;
1405         else
1406                 priv->missed_beacon_threshold = missed;
1407
1408         return count;
1409 }
1410
1411 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1412                                         char __user *user_buf,
1413                                         size_t count, loff_t *ppos) {
1414
1415         struct iwl_priv *priv = file->private_data;
1416         int pos = 0;
1417         char buf[12];
1418         const size_t bufsz = sizeof(buf);
1419
1420         pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1421                         priv->cfg->base_params->plcp_delta_threshold);
1422
1423         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1424 }
1425
1426 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1427                                         const char __user *user_buf,
1428                                         size_t count, loff_t *ppos) {
1429
1430         struct iwl_priv *priv = file->private_data;
1431         char buf[8];
1432         int buf_size;
1433         int plcp;
1434
1435         memset(buf, 0, sizeof(buf));
1436         buf_size = min(count, sizeof(buf) -  1);
1437         if (copy_from_user(buf, user_buf, buf_size))
1438                 return -EFAULT;
1439         if (sscanf(buf, "%d", &plcp) != 1)
1440                 return -EINVAL;
1441         if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1442                 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1443                 priv->cfg->base_params->plcp_delta_threshold =
1444                         IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
1445         else
1446                 priv->cfg->base_params->plcp_delta_threshold = plcp;
1447         return count;
1448 }
1449
1450 static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
1451                                         char __user *user_buf,
1452                                         size_t count, loff_t *ppos) {
1453
1454         struct iwl_priv *priv = file->private_data;
1455         int i, pos = 0;
1456         char buf[300];
1457         const size_t bufsz = sizeof(buf);
1458         struct iwl_force_reset *force_reset;
1459
1460         for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
1461                 force_reset = &priv->force_reset[i];
1462                 pos += scnprintf(buf + pos, bufsz - pos,
1463                                 "Force reset method %d\n", i);
1464                 pos += scnprintf(buf + pos, bufsz - pos,
1465                                 "\tnumber of reset request: %d\n",
1466                                 force_reset->reset_request_count);
1467                 pos += scnprintf(buf + pos, bufsz - pos,
1468                                 "\tnumber of reset request success: %d\n",
1469                                 force_reset->reset_success_count);
1470                 pos += scnprintf(buf + pos, bufsz - pos,
1471                                 "\tnumber of reset request reject: %d\n",
1472                                 force_reset->reset_reject_count);
1473                 pos += scnprintf(buf + pos, bufsz - pos,
1474                                 "\treset duration: %lu\n",
1475                                 force_reset->reset_duration);
1476         }
1477         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1478 }
1479
1480 static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
1481                                         const char __user *user_buf,
1482                                         size_t count, loff_t *ppos) {
1483
1484         struct iwl_priv *priv = file->private_data;
1485         char buf[8];
1486         int buf_size;
1487         int reset, ret;
1488
1489         memset(buf, 0, sizeof(buf));
1490         buf_size = min(count, sizeof(buf) -  1);
1491         if (copy_from_user(buf, user_buf, buf_size))
1492                 return -EFAULT;
1493         if (sscanf(buf, "%d", &reset) != 1)
1494                 return -EINVAL;
1495         switch (reset) {
1496         case IWL_RF_RESET:
1497         case IWL_FW_RESET:
1498                 ret = iwl_force_reset(priv, reset, true);
1499                 break;
1500         default:
1501                 return -EINVAL;
1502         }
1503         return ret ? ret : count;
1504 }
1505
1506 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
1507                                         const char __user *user_buf,
1508                                         size_t count, loff_t *ppos) {
1509
1510         struct iwl_priv *priv = file->private_data;
1511         char buf[8];
1512         int buf_size;
1513         int flush;
1514
1515         memset(buf, 0, sizeof(buf));
1516         buf_size = min(count, sizeof(buf) -  1);
1517         if (copy_from_user(buf, user_buf, buf_size))
1518                 return -EFAULT;
1519         if (sscanf(buf, "%d", &flush) != 1)
1520                 return -EINVAL;
1521
1522         if (iwl_is_rfkill(priv))
1523                 return -EFAULT;
1524
1525         priv->cfg->ops->lib->dev_txfifo_flush(priv, IWL_DROP_ALL);
1526
1527         return count;
1528 }
1529
1530 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1531                                         char __user *user_buf,
1532                                         size_t count, loff_t *ppos)
1533 {
1534         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1535
1536         return priv->cfg->ops->lib->debugfs_ops.bt_stats_read(file,
1537                         user_buf, count, ppos);
1538 }
1539
1540 static ssize_t iwl_dbgfs_monitor_period_write(struct file *file,
1541                                         const char __user *user_buf,
1542                                         size_t count, loff_t *ppos) {
1543
1544         struct iwl_priv *priv = file->private_data;
1545         char buf[8];
1546         int buf_size;
1547         int period;
1548
1549         memset(buf, 0, sizeof(buf));
1550         buf_size = min(count, sizeof(buf) -  1);
1551         if (copy_from_user(buf, user_buf, buf_size))
1552                 return -EFAULT;
1553         if (sscanf(buf, "%d", &period) != 1)
1554                 return -EINVAL;
1555         if (period < 0 || period > IWL_MAX_MONITORING_PERIOD)
1556                 priv->cfg->base_params->monitor_recover_period =
1557                         IWL_DEF_MONITORING_PERIOD;
1558         else
1559                 priv->cfg->base_params->monitor_recover_period = period;
1560
1561         if (priv->cfg->base_params->monitor_recover_period)
1562                 mod_timer(&priv->monitor_recover, jiffies + msecs_to_jiffies(
1563                           priv->cfg->base_params->monitor_recover_period));
1564         else
1565                 del_timer_sync(&priv->monitor_recover);
1566         return count;
1567 }
1568
1569 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
1570                                         char __user *user_buf,
1571                                         size_t count, loff_t *ppos) {
1572
1573         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1574         int pos = 0;
1575         char buf[200];
1576         const size_t bufsz = sizeof(buf);
1577         ssize_t ret;
1578
1579         pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
1580                 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
1581         pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
1582                          "last traffic notif: %d\n",
1583                 priv->bt_status ? "On" : "Off", priv->notif_bt_traffic_load);
1584         pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
1585                          "sco_active: %d, kill_ack_mask: %x, "
1586                          "kill_cts_mask: %x\n",
1587                 priv->bt_ch_announce, priv->bt_sco_active,
1588                 priv->kill_ack_mask, priv->kill_cts_mask);
1589
1590         pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
1591         switch (priv->bt_traffic_load) {
1592         case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
1593                 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
1594                 break;
1595         case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
1596                 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
1597                 break;
1598         case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
1599                 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
1600                 break;
1601         case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
1602         default:
1603                 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
1604                 break;
1605         }
1606
1607         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1608         return ret;
1609 }
1610
1611 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
1612                                         char __user *user_buf,
1613                                         size_t count, loff_t *ppos)
1614 {
1615         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1616
1617         int pos = 0;
1618         char buf[40];
1619         const size_t bufsz = sizeof(buf);
1620
1621         if (priv->cfg->ht_params)
1622                 pos += scnprintf(buf + pos, bufsz - pos,
1623                          "use %s for aggregation\n",
1624                          (priv->cfg->ht_params->use_rts_for_aggregation) ?
1625                                 "rts/cts" : "cts-to-self");
1626         else
1627                 pos += scnprintf(buf + pos, bufsz - pos, "N/A");
1628
1629         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1630 }
1631
1632 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
1633                                         const char __user *user_buf,
1634                                         size_t count, loff_t *ppos) {
1635
1636         struct iwl_priv *priv = file->private_data;
1637         char buf[8];
1638         int buf_size;
1639         int rts;
1640
1641         if (!priv->cfg->ht_params)
1642                 return -EINVAL;
1643
1644         memset(buf, 0, sizeof(buf));
1645         buf_size = min(count, sizeof(buf) -  1);
1646         if (copy_from_user(buf, user_buf, buf_size))
1647                 return -EFAULT;
1648         if (sscanf(buf, "%d", &rts) != 1)
1649                 return -EINVAL;
1650         if (rts)
1651                 priv->cfg->ht_params->use_rts_for_aggregation = true;
1652         else
1653                 priv->cfg->ht_params->use_rts_for_aggregation = false;
1654         return count;
1655 }
1656
1657 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1658                                         char __user *user_buf,
1659                                         size_t count, loff_t *ppos)
1660 {
1661         struct iwl_priv *priv = file->private_data;
1662
1663         if (priv->cfg->ops->lib->debugfs_ops.reply_tx_error)
1664                 return priv->cfg->ops->lib->debugfs_ops.reply_tx_error(
1665                         file, user_buf, count, ppos);
1666         else
1667                 return -ENODATA;
1668 }
1669 DEBUGFS_READ_FILE_OPS(rx_statistics);
1670 DEBUGFS_READ_FILE_OPS(tx_statistics);
1671 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
1672 DEBUGFS_READ_FILE_OPS(rx_queue);
1673 DEBUGFS_READ_FILE_OPS(tx_queue);
1674 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
1675 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
1676 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
1677 DEBUGFS_READ_FILE_OPS(sensitivity);
1678 DEBUGFS_READ_FILE_OPS(chain_noise);
1679 DEBUGFS_READ_FILE_OPS(power_save_status);
1680 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
1681 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
1682 DEBUGFS_WRITE_FILE_OPS(csr);
1683 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
1684 DEBUGFS_READ_FILE_OPS(fh_reg);
1685 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
1686 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
1687 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
1688 DEBUGFS_READ_FILE_OPS(rxon_flags);
1689 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
1690 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
1691 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
1692 DEBUGFS_WRITE_FILE_OPS(monitor_period);
1693 DEBUGFS_READ_FILE_OPS(bt_traffic);
1694 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
1695 DEBUGFS_READ_FILE_OPS(reply_tx_error);
1696
1697 /*
1698  * Create the debugfs files and directories
1699  *
1700  */
1701 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
1702 {
1703         struct dentry *phyd = priv->hw->wiphy->debugfsdir;
1704         struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
1705
1706         dir_drv = debugfs_create_dir(name, phyd);
1707         if (!dir_drv)
1708                 return -ENOMEM;
1709
1710         priv->debugfs_dir = dir_drv;
1711
1712         dir_data = debugfs_create_dir("data", dir_drv);
1713         if (!dir_data)
1714                 goto err;
1715         dir_rf = debugfs_create_dir("rf", dir_drv);
1716         if (!dir_rf)
1717                 goto err;
1718         dir_debug = debugfs_create_dir("debug", dir_drv);
1719         if (!dir_debug)
1720                 goto err;
1721
1722         DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
1723         DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
1724         DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR);
1725         DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
1726         DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
1727         DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
1728         DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
1729         DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
1730         DEBUGFS_ADD_FILE(led, dir_data, S_IRUSR);
1731         if (!priv->cfg->base_params->broken_powersave) {
1732                 DEBUGFS_ADD_FILE(sleep_level_override, dir_data,
1733                                  S_IWUSR | S_IRUSR);
1734                 DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
1735         }
1736         DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
1737         DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
1738         DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
1739         DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
1740         DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
1741         DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
1742         DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
1743         DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
1744         DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
1745         DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
1746         DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
1747         DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
1748         DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
1749         DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
1750         DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
1751         DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
1752         DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
1753         DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
1754         if (priv->cfg->ops->lib->dev_txfifo_flush)
1755                 DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
1756         DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
1757
1758         if (priv->cfg->base_params->sensitivity_calib_by_driver)
1759                 DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
1760         if (priv->cfg->base_params->chain_noise_calib_by_driver)
1761                 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
1762         if (priv->cfg->base_params->ucode_tracing)
1763                 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
1764         if (priv->cfg->bt_params && priv->cfg->bt_params->bt_statistics)
1765                 DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
1766         DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
1767         DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
1768         DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
1769         DEBUGFS_ADD_FILE(monitor_period, dir_debug, S_IWUSR);
1770         if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist)
1771                 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
1772         if (priv->cfg->base_params->sensitivity_calib_by_driver)
1773                 DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
1774                                  &priv->disable_sens_cal);
1775         if (priv->cfg->base_params->chain_noise_calib_by_driver)
1776                 DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
1777                                  &priv->disable_chain_noise_cal);
1778         if (priv->cfg->base_params->tx_power_by_driver)
1779                 DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf,
1780                                 &priv->disable_tx_power_cal);
1781         return 0;
1782
1783 err:
1784         IWL_ERR(priv, "Can't create the debugfs directory\n");
1785         iwl_dbgfs_unregister(priv);
1786         return -ENOMEM;
1787 }
1788 EXPORT_SYMBOL(iwl_dbgfs_register);
1789
1790 /**
1791  * Remove the debugfs files and directories
1792  *
1793  */
1794 void iwl_dbgfs_unregister(struct iwl_priv *priv)
1795 {
1796         if (!priv->debugfs_dir)
1797                 return;
1798
1799         debugfs_remove_recursive(priv->debugfs_dir);
1800         priv->debugfs_dir = NULL;
1801 }
1802 EXPORT_SYMBOL(iwl_dbgfs_unregister);
1803
1804
1805