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 #include "iwl-calib.h"
  43
  44 /* create and remove of files */
  45 #define DEBUGFS_ADD_FILE(name, parent, mode) do {                       \
  46         if (!debugfs_create_file(#name, mode, parent, priv,             \
  47                                  &iwl_dbgfs_##name##_ops))              \
  48                 goto err;                                               \
  49 } while (0)
  50
  51 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do {                        \
  52         struct dentry *__tmp;                                           \
  53         __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR,           \
  54                                     parent, ptr);                       \
  55         if (IS_ERR(__tmp) || !__tmp)                                    \
  56                 goto err;                                               \
  57 } while (0)
  58
  59 #define DEBUGFS_ADD_X32(name, parent, ptr) do {                         \
  60         struct dentry *__tmp;                                           \
  61         __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR,            \
  62                                    parent, ptr);                        \
  63         if (IS_ERR(__tmp) || !__tmp)                                    \
  64                 goto err;                                               \
  65 } while (0)
  66
  67 /* file operation */
  68 #define DEBUGFS_READ_FUNC(name)                                         \
  69 static ssize_t iwl_dbgfs_##name##_read(struct file *file,               \
  70                                         char __user *user_buf,          \
  71                                         size_t count, loff_t *ppos);
  72
  73 #define DEBUGFS_WRITE_FUNC(name)                                        \
  74 static ssize_t iwl_dbgfs_##name##_write(struct file *file,              \
  75                                         const char __user *user_buf,    \
  76                                         size_t count, loff_t *ppos);
  77
  78
  79 static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
  80 {
  81         file->private_data = inode->i_private;
  82         return 0;
  83 }
  84
  85 #define DEBUGFS_READ_FILE_OPS(name)                                     \
  86         DEBUGFS_READ_FUNC(name);                                        \
  87 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  88         .read = iwl_dbgfs_##name##_read,                                \
  89         .open = iwl_dbgfs_open_file_generic,                            \
  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 };
  98
  99
 100 #define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
 101         DEBUGFS_READ_FUNC(name);                                        \
 102         DEBUGFS_WRITE_FUNC(name);                                       \
 103 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
 104         .write = iwl_dbgfs_##name##_write,                              \
 105         .read = iwl_dbgfs_##name##_read,                                \
 106         .open = iwl_dbgfs_open_file_generic,                            \
 107 };
 108
 109 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
 110                                                 char __user *user_buf,
 111                                                 size_t count, loff_t *ppos) {
 112
 113         struct iwl_priv *priv = file->private_data;
 114         char *buf;
 115         int pos = 0;
 116
 117         int cnt;
 118         ssize_t ret;
 119         const size_t bufsz = 100 +
 120                 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
 121         buf = kzalloc(bufsz, GFP_KERNEL);
 122         if (!buf)
 123                 return -ENOMEM;
 124         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
 125         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
 126                 pos += scnprintf(buf + pos, bufsz - pos,
 127                                  "\t%25s\t\t: %u\n",
 128                                  get_mgmt_string(cnt),
 129                                  priv->tx_stats.mgmt[cnt]);
 130         }
 131         pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
 132         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
 133                 pos += scnprintf(buf + pos, bufsz - pos,
 134                                  "\t%25s\t\t: %u\n",
 135                                  get_ctrl_string(cnt),
 136                                  priv->tx_stats.ctrl[cnt]);
 137         }
 138         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
 139         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
 140                          priv->tx_stats.data_cnt);
 141         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
 142                          priv->tx_stats.data_bytes);
 143         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 144         kfree(buf);
 145         return ret;
 146 }
 147
 148 static ssize_t iwl_dbgfs_clear_traffic_statistics_write(struct file *file,
 149                                         const char __user *user_buf,
 150                                         size_t count, loff_t *ppos)
 151 {
 152         struct iwl_priv *priv = file->private_data;
 153         u32 clear_flag;
 154         char buf[8];
 155         int buf_size;
 156
 157         memset(buf, 0, sizeof(buf));
 158         buf_size = min(count, sizeof(buf) -  1);
 159         if (copy_from_user(buf, user_buf, buf_size))
 160                 return -EFAULT;
 161         if (sscanf(buf, "%x", &clear_flag) != 1)
 162                 return -EFAULT;
 163         iwl_clear_traffic_stats(priv);
 164
 165         return count;
 166 }
 167
 168 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
 169                                                 char __user *user_buf,
 170                                                 size_t count, loff_t *ppos) {
 171
 172         struct iwl_priv *priv = file->private_data;
 173         char *buf;
 174         int pos = 0;
 175         int cnt;
 176         ssize_t ret;
 177         const size_t bufsz = 100 +
 178                 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
 179         buf = kzalloc(bufsz, GFP_KERNEL);
 180         if (!buf)
 181                 return -ENOMEM;
 182
 183         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
 184         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
 185                 pos += scnprintf(buf + pos, bufsz - pos,
 186                                  "\t%25s\t\t: %u\n",
 187                                  get_mgmt_string(cnt),
 188                                  priv->rx_stats.mgmt[cnt]);
 189         }
 190         pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
 191         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
 192                 pos += scnprintf(buf + pos, bufsz - pos,
 193                                  "\t%25s\t\t: %u\n",
 194                                  get_ctrl_string(cnt),
 195                                  priv->rx_stats.ctrl[cnt]);
 196         }
 197         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
 198         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
 199                          priv->rx_stats.data_cnt);
 200         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
 201                          priv->rx_stats.data_bytes);
 202
 203         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 204         kfree(buf);
 205         return ret;
 206 }
 207
 208 #define BYTE1_MASK 0x000000ff;
 209 #define BYTE2_MASK 0x0000ffff;
 210 #define BYTE3_MASK 0x00ffffff;
 211 static ssize_t iwl_dbgfs_sram_read(struct file *file,
 212                                         char __user *user_buf,
 213                                         size_t count, loff_t *ppos)
 214 {
 215         u32 val;
 216         char *buf;
 217         ssize_t ret;
 218         int i;
 219         int pos = 0;
 220         struct iwl_priv *priv = file->private_data;
 221         size_t bufsz;
 222
 223         /* default is to dump the entire data segment */
 224         if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
 225                 priv->dbgfs_sram_offset = 0x800000;
 226                 if (priv->ucode_type == UCODE_INIT)
 227                         priv->dbgfs_sram_len = priv->ucode_init_data.len;
 228                 else
 229                         priv->dbgfs_sram_len = priv->ucode_data.len;
 230         }
 231         bufsz =  30 + priv->dbgfs_sram_len * sizeof(char) * 10;
 232         buf = kmalloc(bufsz, GFP_KERNEL);
 233         if (!buf)
 234                 return -ENOMEM;
 235         pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
 236                         priv->dbgfs_sram_len);
 237         pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
 238                         priv->dbgfs_sram_offset);
 239         for (i = priv->dbgfs_sram_len; i > 0; i -= 4) {
 240                 val = iwl_read_targ_mem(priv, priv->dbgfs_sram_offset + \
 241                                         priv->dbgfs_sram_len - i);
 242                 if (i < 4) {
 243                         switch (i) {
 244                         case 1:
 245                                 val &= BYTE1_MASK;
 246                                 break;
 247                         case 2:
 248                                 val &= BYTE2_MASK;
 249                                 break;
 250                         case 3:
 251                                 val &= BYTE3_MASK;
 252                                 break;
 253                         }
 254                 }
 255                 if (!(i % 16))
 256                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 257                 pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
 258         }
 259         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 260
 261         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 262         kfree(buf);
 263         return ret;
 264 }
 265
 266 static ssize_t iwl_dbgfs_sram_write(struct file *file,
 267                                         const char __user *user_buf,
 268                                         size_t count, loff_t *ppos)
 269 {
 270         struct iwl_priv *priv = file->private_data;
 271         char buf[64];
 272         int buf_size;
 273         u32 offset, len;
 274
 275         memset(buf, 0, sizeof(buf));
 276         buf_size = min(count, sizeof(buf) -  1);
 277         if (copy_from_user(buf, user_buf, buf_size))
 278                 return -EFAULT;
 279
 280         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 281                 priv->dbgfs_sram_offset = offset;
 282                 priv->dbgfs_sram_len = len;
 283         } else {
 284                 priv->dbgfs_sram_offset = 0;
 285                 priv->dbgfs_sram_len = 0;
 286         }
 287
 288         return count;
 289 }
 290
 291 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 292                                         size_t count, loff_t *ppos)
 293 {
 294         struct iwl_priv *priv = file->private_data;
 295         struct iwl_station_entry *station;
 296         int max_sta = priv->hw_params.max_stations;
 297         char *buf;
 298         int i, j, pos = 0;
 299         ssize_t ret;
 300         /* Add 30 for initial string */
 301         const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
 302
 303         buf = kmalloc(bufsz, GFP_KERNEL);
 304         if (!buf)
 305                 return -ENOMEM;
 306
 307         pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
 308                         priv->num_stations);
 309
 310         for (i = 0; i < max_sta; i++) {
 311                 station = &priv->stations[i];
 312                 if (!station->used)
 313                         continue;
 314                 pos += scnprintf(buf + pos, bufsz - pos,
 315                                  "station %d - addr: %pM, flags: %#x\n",
 316                                  i, station->sta.sta.addr,
 317                                  station->sta.station_flags_msk);
 318                 pos += scnprintf(buf + pos, bufsz - pos,
 319                                 "TID\tseq_num\ttxq_id\tframes\ttfds\t");
 320                 pos += scnprintf(buf + pos, bufsz - pos,
 321                                 "start_idx\tbitmap\t\t\trate_n_flags\n");
 322
 323                 for (j = 0; j < MAX_TID_COUNT; j++) {
 324                         pos += scnprintf(buf + pos, bufsz - pos,
 325                                 "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
 326                                 j, station->tid[j].seq_number,
 327                                 station->tid[j].agg.txq_id,
 328                                 station->tid[j].agg.frame_count,
 329                                 station->tid[j].tfds_in_queue,
 330                                 station->tid[j].agg.start_idx,
 331                                 station->tid[j].agg.bitmap,
 332                                 station->tid[j].agg.rate_n_flags);
 333
 334                         if (station->tid[j].agg.wait_for_ba)
 335                                 pos += scnprintf(buf + pos, bufsz - pos,
 336                                                  " - waitforba");
 337                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 338                 }
 339
 340                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 341         }
 342
 343         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 344         kfree(buf);
 345         return ret;
 346 }
 347
 348 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
 349                                        char __user *user_buf,
 350                                        size_t count,
 351                                        loff_t *ppos)
 352 {
 353         ssize_t ret;
 354         struct iwl_priv *priv = file->private_data;
 355         int pos = 0, ofs = 0, buf_size = 0;
 356         const u8 *ptr;
 357         char *buf;
 358         u16 eeprom_ver;
 359         size_t eeprom_len = priv->cfg->eeprom_size;
 360         buf_size = 4 * eeprom_len + 256;
 361
 362         if (eeprom_len % 16) {
 363                 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
 364                 return -ENODATA;
 365         }
 366
 367         ptr = priv->eeprom;
 368         if (!ptr) {
 369                 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
 370                 return -ENOMEM;
 371         }
 372
 373         /* 4 characters for byte 0xYY */
 374         buf = kzalloc(buf_size, GFP_KERNEL);
 375         if (!buf) {
 376                 IWL_ERR(priv, "Can not allocate Buffer\n");
 377                 return -ENOMEM;
 378         }
 379         eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
 380         pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
 381                         "version: 0x%x\n",
 382                         (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
 383                          ? "OTP" : "EEPROM", eeprom_ver);
 384         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
 385                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
 386                 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
 387                                    buf_size - pos, 0);
 388                 pos += strlen(buf + pos);
 389                 if (buf_size - pos > 0)
 390                         buf[pos++] = '\n';
 391         }
 392
 393         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 394         kfree(buf);
 395         return ret;
 396 }
 397
 398 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
 399                                          char __user *user_buf,
 400                                          size_t count, loff_t *ppos)
 401 {
 402         struct iwl_priv *priv = file->private_data;
 403         char *buf;
 404         int pos = 0;
 405         ssize_t ret = -ENOMEM;
 406
 407         ret = pos = priv->cfg->ops->lib->dump_nic_event_log(
 408                                         priv, true, &buf, true);
 409         if (buf) {
 410                 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 411                 kfree(buf);
 412         }
 413         return ret;
 414 }
 415
 416 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
 417                                         const char __user *user_buf,
 418                                         size_t count, loff_t *ppos)
 419 {
 420         struct iwl_priv *priv = file->private_data;
 421         u32 event_log_flag;
 422         char buf[8];
 423         int buf_size;
 424
 425         memset(buf, 0, sizeof(buf));
 426         buf_size = min(count, sizeof(buf) -  1);
 427         if (copy_from_user(buf, user_buf, buf_size))
 428                 return -EFAULT;
 429         if (sscanf(buf, "%d", &event_log_flag) != 1)
 430                 return -EFAULT;
 431         if (event_log_flag == 1)
 432                 priv->cfg->ops->lib->dump_nic_event_log(priv, true,
 433                                                         NULL, false);
 434
 435         return count;
 436 }
 437
 438
 439
 440 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 441                                        size_t count, loff_t *ppos)
 442 {
 443         struct iwl_priv *priv = file->private_data;
 444         struct ieee80211_channel *channels = NULL;
 445         const struct ieee80211_supported_band *supp_band = NULL;
 446         int pos = 0, i, bufsz = PAGE_SIZE;
 447         char *buf;
 448         ssize_t ret;
 449
 450         if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
 451                 return -EAGAIN;
 452
 453         buf = kzalloc(bufsz, GFP_KERNEL);
 454         if (!buf) {
 455                 IWL_ERR(priv, "Can not allocate Buffer\n");
 456                 return -ENOMEM;
 457         }
 458
 459         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
 460         if (supp_band) {
 461                 channels = supp_band->channels;
 462
 463                 pos += scnprintf(buf + pos, bufsz - pos,
 464                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
 465                                 supp_band->n_channels);
 466
 467                 for (i = 0; i < supp_band->n_channels; i++)
 468                         pos += scnprintf(buf + pos, bufsz - pos,
 469                                         "%d: %ddBm: BSS%s%s, %s.\n",
 470                                         channels[i].hw_value,
 471                                         channels[i].max_power,
 472                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 473                                         " (IEEE 802.11h required)" : "",
 474                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 475                                         || (channels[i].flags &
 476                                         IEEE80211_CHAN_RADAR)) ? "" :
 477                                         ", IBSS",
 478                                         channels[i].flags &
 479                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 480                                         "passive only" : "active/passive");
 481         }
 482         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
 483         if (supp_band) {
 484                 channels = supp_band->channels;
 485
 486                 pos += scnprintf(buf + pos, bufsz - pos,
 487                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
 488                                 supp_band->n_channels);
 489
 490                 for (i = 0; i < supp_band->n_channels; i++)
 491                         pos += scnprintf(buf + pos, bufsz - pos,
 492                                         "%d: %ddBm: BSS%s%s, %s.\n",
 493                                         channels[i].hw_value,
 494                                         channels[i].max_power,
 495                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 496                                         " (IEEE 802.11h required)" : "",
 497                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 498                                         || (channels[i].flags &
 499                                         IEEE80211_CHAN_RADAR)) ? "" :
 500                                         ", IBSS",
 501                                         channels[i].flags &
 502                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 503                                         "passive only" : "active/passive");
 504         }
 505         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 506         kfree(buf);
 507         return ret;
 508 }
 509
 510 static ssize_t iwl_dbgfs_status_read(struct file *file,
 511                                                 char __user *user_buf,
 512                                                 size_t count, loff_t *ppos) {
 513
 514         struct iwl_priv *priv = file->private_data;
 515         char buf[512];
 516         int pos = 0;
 517         const size_t bufsz = sizeof(buf);
 518
 519         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
 520                 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
 521         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
 522                 test_bit(STATUS_INT_ENABLED, &priv->status));
 523         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 524                 test_bit(STATUS_RF_KILL_HW, &priv->status));
 525         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 526                 test_bit(STATUS_CT_KILL, &priv->status));
 527         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
 528                 test_bit(STATUS_INIT, &priv->status));
 529         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 530                 test_bit(STATUS_ALIVE, &priv->status));
 531         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 532                 test_bit(STATUS_READY, &priv->status));
 533         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
 534                 test_bit(STATUS_TEMPERATURE, &priv->status));
 535         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
 536                 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
 537         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 538                 test_bit(STATUS_EXIT_PENDING, &priv->status));
 539         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 540                 test_bit(STATUS_STATISTICS, &priv->status));
 541         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 542                 test_bit(STATUS_SCANNING, &priv->status));
 543         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 544                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
 545         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 546                 test_bit(STATUS_SCAN_HW, &priv->status));
 547         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 548                 test_bit(STATUS_POWER_PMI, &priv->status));
 549         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 550                 test_bit(STATUS_FW_ERROR, &priv->status));
 551         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 552 }
 553
 554 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
 555                                         char __user *user_buf,
 556                                         size_t count, loff_t *ppos) {
 557
 558         struct iwl_priv *priv = file->private_data;
 559         int pos = 0;
 560         int cnt = 0;
 561         char *buf;
 562         int bufsz = 24 * 64; /* 24 items * 64 char per item */
 563         ssize_t ret;
 564
 565         buf = kzalloc(bufsz, GFP_KERNEL);
 566         if (!buf) {
 567                 IWL_ERR(priv, "Can not allocate Buffer\n");
 568                 return -ENOMEM;
 569         }
 570
 571         pos += scnprintf(buf + pos, bufsz - pos,
 572                         "Interrupt Statistics Report:\n");
 573
 574         pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
 575                 priv->isr_stats.hw);
 576         pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
 577                 priv->isr_stats.sw);
 578         if (priv->isr_stats.sw || priv->isr_stats.hw) {
 579                 pos += scnprintf(buf + pos, bufsz - pos,
 580                         "\tLast Restarting Code:  0x%X\n",
 581                         priv->isr_stats.err_code);
 582         }
 583 #ifdef CONFIG_IWLWIFI_DEBUG
 584         pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
 585                 priv->isr_stats.sch);
 586         pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
 587                 priv->isr_stats.alive);
 588 #endif
 589         pos += scnprintf(buf + pos, bufsz - pos,
 590                 "HW RF KILL switch toggled:\t %u\n",
 591                 priv->isr_stats.rfkill);
 592
 593         pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
 594                 priv->isr_stats.ctkill);
 595
 596         pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
 597                 priv->isr_stats.wakeup);
 598
 599         pos += scnprintf(buf + pos, bufsz - pos,
 600                 "Rx command responses:\t\t %u\n",
 601                 priv->isr_stats.rx);
 602         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 603                 if (priv->isr_stats.rx_handlers[cnt] > 0)
 604                         pos += scnprintf(buf + pos, bufsz - pos,
 605                                 "\tRx handler[%36s]:\t\t %u\n",
 606                                 get_cmd_string(cnt),
 607                                 priv->isr_stats.rx_handlers[cnt]);
 608         }
 609
 610         pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
 611                 priv->isr_stats.tx);
 612
 613         pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
 614                 priv->isr_stats.unhandled);
 615
 616         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 617         kfree(buf);
 618         return ret;
 619 }
 620
 621 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
 622                                          const char __user *user_buf,
 623                                          size_t count, loff_t *ppos)
 624 {
 625         struct iwl_priv *priv = file->private_data;
 626         char buf[8];
 627         int buf_size;
 628         u32 reset_flag;
 629
 630         memset(buf, 0, sizeof(buf));
 631         buf_size = min(count, sizeof(buf) -  1);
 632         if (copy_from_user(buf, user_buf, buf_size))
 633                 return -EFAULT;
 634         if (sscanf(buf, "%x", &reset_flag) != 1)
 635                 return -EFAULT;
 636         if (reset_flag == 0)
 637                 iwl_clear_isr_stats(priv);
 638
 639         return count;
 640 }
 641
 642 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 643                                        size_t count, loff_t *ppos)
 644 {
 645         struct iwl_priv *priv = file->private_data;
 646         struct iwl_rxon_context *ctx;
 647         int pos = 0, i;
 648         char buf[256 * NUM_IWL_RXON_CTX];
 649         const size_t bufsz = sizeof(buf);
 650
 651         for_each_context(priv, ctx) {
 652                 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
 653                                  ctx->ctxid);
 654                 for (i = 0; i < AC_NUM; i++) {
 655                         pos += scnprintf(buf + pos, bufsz - pos,
 656                                 "\tcw_min\tcw_max\taifsn\ttxop\n");
 657                         pos += scnprintf(buf + pos, bufsz - pos,
 658                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
 659                                 ctx->qos_data.def_qos_parm.ac[i].cw_min,
 660                                 ctx->qos_data.def_qos_parm.ac[i].cw_max,
 661                                 ctx->qos_data.def_qos_parm.ac[i].aifsn,
 662                                 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
 663                 }
 664                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 665         }
 666         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 667 }
 668
 669 static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
 670                                   size_t count, loff_t *ppos)
 671 {
 672         struct iwl_priv *priv = file->private_data;
 673         int pos = 0;
 674         char buf[256];
 675         const size_t bufsz = sizeof(buf);
 676
 677         pos += scnprintf(buf + pos, bufsz - pos,
 678                          "allow blinking: %s\n",
 679                          (priv->allow_blinking) ? "True" : "False");
 680         if (priv->allow_blinking) {
 681                 pos += scnprintf(buf + pos, bufsz - pos,
 682                                  "Led blinking rate: %u\n",
 683                                  priv->last_blink_rate);
 684                 pos += scnprintf(buf + pos, bufsz - pos,
 685                                  "Last blink time: %lu\n",
 686                                  priv->last_blink_time);
 687         }
 688
 689         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 690 }
 691
 692 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 693                                 char __user *user_buf,
 694                                 size_t count, loff_t *ppos)
 695 {
 696         struct iwl_priv *priv = file->private_data;
 697         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 698         struct iwl_tt_restriction *restriction;
 699         char buf[100];
 700         int pos = 0;
 701         const size_t bufsz = sizeof(buf);
 702
 703         pos += scnprintf(buf + pos, bufsz - pos,
 704                         "Thermal Throttling Mode: %s\n",
 705                         tt->advanced_tt ? "Advance" : "Legacy");
 706         pos += scnprintf(buf + pos, bufsz - pos,
 707                         "Thermal Throttling State: %d\n",
 708                         tt->state);
 709         if (tt->advanced_tt) {
 710                 restriction = tt->restriction + tt->state;
 711                 pos += scnprintf(buf + pos, bufsz - pos,
 712                                 "Tx mode: %d\n",
 713                                 restriction->tx_stream);
 714                 pos += scnprintf(buf + pos, bufsz - pos,
 715                                 "Rx mode: %d\n",
 716                                 restriction->rx_stream);
 717                 pos += scnprintf(buf + pos, bufsz - pos,
 718                                 "HT mode: %d\n",
 719                                 restriction->is_ht);
 720         }
 721         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 722 }
 723
 724 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 725                                          const char __user *user_buf,
 726                                          size_t count, loff_t *ppos)
 727 {
 728         struct iwl_priv *priv = file->private_data;
 729         char buf[8];
 730         int buf_size;
 731         int ht40;
 732
 733         memset(buf, 0, sizeof(buf));
 734         buf_size = min(count, sizeof(buf) -  1);
 735         if (copy_from_user(buf, user_buf, buf_size))
 736                 return -EFAULT;
 737         if (sscanf(buf, "%d", &ht40) != 1)
 738                 return -EFAULT;
 739         if (!iwl_is_any_associated(priv))
 740                 priv->disable_ht40 = ht40 ? true : false;
 741         else {
 742                 IWL_ERR(priv, "Sta associated with AP - "
 743                         "Change to 40MHz channel support is not allowed\n");
 744                 return -EINVAL;
 745         }
 746
 747         return count;
 748 }
 749
 750 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 751                                          char __user *user_buf,
 752                                          size_t count, loff_t *ppos)
 753 {
 754         struct iwl_priv *priv = file->private_data;
 755         char buf[100];
 756         int pos = 0;
 757         const size_t bufsz = sizeof(buf);
 758
 759         pos += scnprintf(buf + pos, bufsz - pos,
 760                         "11n 40MHz Mode: %s\n",
 761                         priv->disable_ht40 ? "Disabled" : "Enabled");
 762         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 763 }
 764
 765 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 766                                                     const char __user *user_buf,
 767                                                     size_t count, loff_t *ppos)
 768 {
 769         struct iwl_priv *priv = file->private_data;
 770         char buf[8];
 771         int buf_size;
 772         int value;
 773
 774         memset(buf, 0, sizeof(buf));
 775         buf_size = min(count, sizeof(buf) -  1);
 776         if (copy_from_user(buf, user_buf, buf_size))
 777                 return -EFAULT;
 778
 779         if (sscanf(buf, "%d", &value) != 1)
 780                 return -EINVAL;
 781
 782         /*
 783          * Our users expect 0 to be "CAM", but 0 isn't actually
 784          * valid here. However, let's not confuse them and present
 785          * IWL_POWER_INDEX_1 as "1", not "0".
 786          */
 787         if (value == 0)
 788                 return -EINVAL;
 789         else if (value > 0)
 790                 value -= 1;
 791
 792         if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 793                 return -EINVAL;
 794
 795         if (!iwl_is_ready_rf(priv))
 796                 return -EAGAIN;
 797
 798         priv->power_data.debug_sleep_level_override = value;
 799
 800         mutex_lock(&priv->mutex);
 801         iwl_power_update_mode(priv, true);
 802         mutex_unlock(&priv->mutex);
 803
 804         return count;
 805 }
 806
 807 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 808                                                    char __user *user_buf,
 809                                                    size_t count, loff_t *ppos)
 810 {
 811         struct iwl_priv *priv = file->private_data;
 812         char buf[10];
 813         int pos, value;
 814         const size_t bufsz = sizeof(buf);
 815
 816         /* see the write function */
 817         value = priv->power_data.debug_sleep_level_override;
 818         if (value >= 0)
 819                 value += 1;
 820
 821         pos = scnprintf(buf, bufsz, "%d\n", value);
 822         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 823 }
 824
 825 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 826                                                     char __user *user_buf,
 827                                                     size_t count, loff_t *ppos)
 828 {
 829         struct iwl_priv *priv = file->private_data;
 830         char buf[200];
 831         int pos = 0, i;
 832         const size_t bufsz = sizeof(buf);
 833         struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 834
 835         pos += scnprintf(buf + pos, bufsz - pos,
 836                          "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 837         pos += scnprintf(buf + pos, bufsz - pos,
 838                          "RX/TX timeout: %d/%d usec\n",
 839                          le32_to_cpu(cmd->rx_data_timeout),
 840                          le32_to_cpu(cmd->tx_data_timeout));
 841         for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 842                 pos += scnprintf(buf + pos, bufsz - pos,
 843                                  "sleep_interval[%d]: %d\n", i,
 844                                  le32_to_cpu(cmd->sleep_interval[i]));
 845
 846         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 847 }
 848
 849 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 850 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
 851 DEBUGFS_READ_FILE_OPS(nvm);
 852 DEBUGFS_READ_FILE_OPS(stations);
 853 DEBUGFS_READ_FILE_OPS(channels);
 854 DEBUGFS_READ_FILE_OPS(status);
 855 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 856 DEBUGFS_READ_FILE_OPS(qos);
 857 DEBUGFS_READ_FILE_OPS(led);
 858 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 859 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 860 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 861 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 862
 863 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
 864                                          char __user *user_buf,
 865                                          size_t count, loff_t *ppos)
 866 {
 867         struct iwl_priv *priv = file->private_data;
 868         int pos = 0, ofs = 0;
 869         int cnt = 0, entry;
 870         struct iwl_tx_queue *txq;
 871         struct iwl_queue *q;
 872         struct iwl_rx_queue *rxq = &priv->rxq;
 873         char *buf;
 874         int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
 875                 (priv->cfg->num_of_queues * 32 * 8) + 400;
 876         const u8 *ptr;
 877         ssize_t ret;
 878
 879         if (!priv->txq) {
 880                 IWL_ERR(priv, "txq not ready\n");
 881                 return -EAGAIN;
 882         }
 883         buf = kzalloc(bufsz, GFP_KERNEL);
 884         if (!buf) {
 885                 IWL_ERR(priv, "Can not allocate buffer\n");
 886                 return -ENOMEM;
 887         }
 888         pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
 889         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 890                 txq = &priv->txq[cnt];
 891                 q = &txq->q;
 892                 pos += scnprintf(buf + pos, bufsz - pos,
 893                                 "q[%d]: read_ptr: %u, write_ptr: %u\n",
 894                                 cnt, q->read_ptr, q->write_ptr);
 895         }
 896         if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
 897                 ptr = priv->tx_traffic;
 898                 pos += scnprintf(buf + pos, bufsz - pos,
 899                                 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
 900                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 901                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 902                              entry++,  ofs += 16) {
 903                                 pos += scnprintf(buf + pos, bufsz - pos,
 904                                                 "0x%.4x ", ofs);
 905                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 906                                                    buf + pos, bufsz - pos, 0);
 907                                 pos += strlen(buf + pos);
 908                                 if (bufsz - pos > 0)
 909                                         buf[pos++] = '\n';
 910                         }
 911                 }
 912         }
 913
 914         pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
 915         pos += scnprintf(buf + pos, bufsz - pos,
 916                         "read: %u, write: %u\n",
 917                          rxq->read, rxq->write);
 918
 919         if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
 920                 ptr = priv->rx_traffic;
 921                 pos += scnprintf(buf + pos, bufsz - pos,
 922                                 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
 923                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 924                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 925                              entry++,  ofs += 16) {
 926                                 pos += scnprintf(buf + pos, bufsz - pos,
 927                                                 "0x%.4x ", ofs);
 928                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 929                                                    buf + pos, bufsz - pos, 0);
 930                                 pos += strlen(buf + pos);
 931                                 if (bufsz - pos > 0)
 932                                         buf[pos++] = '\n';
 933                         }
 934                 }
 935         }
 936
 937         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 938         kfree(buf);
 939         return ret;
 940 }
 941
 942 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
 943                                          const char __user *user_buf,
 944                                          size_t count, loff_t *ppos)
 945 {
 946         struct iwl_priv *priv = file->private_data;
 947         char buf[8];
 948         int buf_size;
 949         int traffic_log;
 950
 951         memset(buf, 0, sizeof(buf));
 952         buf_size = min(count, sizeof(buf) -  1);
 953         if (copy_from_user(buf, user_buf, buf_size))
 954                 return -EFAULT;
 955         if (sscanf(buf, "%d", &traffic_log) != 1)
 956                 return -EFAULT;
 957         if (traffic_log == 0)
 958                 iwl_reset_traffic_log(priv);
 959
 960         return count;
 961 }
 962
 963 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
 964                                                 char __user *user_buf,
 965                                                 size_t count, loff_t *ppos) {
 966
 967         struct iwl_priv *priv = file->private_data;
 968         struct iwl_tx_queue *txq;
 969         struct iwl_queue *q;
 970         char *buf;
 971         int pos = 0;
 972         int cnt;
 973         int ret;
 974         const size_t bufsz = sizeof(char) * 64 * priv->cfg->num_of_queues;
 975
 976         if (!priv->txq) {
 977                 IWL_ERR(priv, "txq not ready\n");
 978                 return -EAGAIN;
 979         }
 980         buf = kzalloc(bufsz, GFP_KERNEL);
 981         if (!buf)
 982                 return -ENOMEM;
 983
 984         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 985                 txq = &priv->txq[cnt];
 986                 q = &txq->q;
 987                 pos += scnprintf(buf + pos, bufsz - pos,
 988                                 "hwq %.2d: read=%u write=%u stop=%d"
 989                                 " swq_id=%#.2x (ac %d/hwq %d)\n",
 990                                 cnt, q->read_ptr, q->write_ptr,
 991                                 !!test_bit(cnt, priv->queue_stopped),
 992                                 txq->swq_id,
 993                                 txq->swq_id & 0x80 ? txq->swq_id & 3 :
 994                                 txq->swq_id,
 995                                 txq->swq_id & 0x80 ? (txq->swq_id >> 2) &
 996                                 0x1f : txq->swq_id);
 997                 if (cnt >= 4)
 998                         continue;
 999                 /* for the ACs, display the stop count too */
1000                 pos += scnprintf(buf + pos, bufsz - pos,
1001                                 "        stop-count: %d\n",
1002                                 atomic_read(&priv->queue_stop_count[cnt]));
1003         }
1004         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1005         kfree(buf);
1006         return ret;
1007 }
1008
1009 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
1010                                                 char __user *user_buf,
1011                                                 size_t count, loff_t *ppos) {
1012
1013         struct iwl_priv *priv = file->private_data;
1014         struct iwl_rx_queue *rxq = &priv->rxq;
1015         char buf[256];
1016         int pos = 0;
1017         const size_t bufsz = sizeof(buf);
1018
1019         pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
1020                                                 rxq->read);
1021         pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
1022                                                 rxq->write);
1023         pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1024                                                 rxq->free_count);
1025         if (rxq->rb_stts) {
1026                 pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1027                          le16_to_cpu(rxq->rb_stts->closed_rb_num) &  0x0FFF);
1028         } else {
1029                 pos += scnprintf(buf + pos, bufsz - pos,
1030                                         "closed_rb_num: Not Allocated\n");
1031         }
1032         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1033 }
1034
1035 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1036                                         char __user *user_buf,
1037                                         size_t count, loff_t *ppos)
1038 {
1039         struct iwl_priv *priv = file->private_data;
1040         return priv->cfg->ops->lib->debugfs_ops.rx_stats_read(file,
1041                         user_buf, count, ppos);
1042 }
1043
1044 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1045                                         char __user *user_buf,
1046                                         size_t count, loff_t *ppos)
1047 {
1048         struct iwl_priv *priv = file->private_data;
1049         return priv->cfg->ops->lib->debugfs_ops.tx_stats_read(file,
1050                         user_buf, count, ppos);
1051 }
1052
1053 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1054                                         char __user *user_buf,
1055                                         size_t count, loff_t *ppos)
1056 {
1057         struct iwl_priv *priv = file->private_data;
1058         return priv->cfg->ops->lib->debugfs_ops.general_stats_read(file,
1059                         user_buf, count, ppos);
1060 }
1061
1062 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1063                                         char __user *user_buf,
1064                                         size_t count, loff_t *ppos) {
1065
1066         struct iwl_priv *priv = file->private_data;
1067         int pos = 0;
1068         int cnt = 0;
1069         char *buf;
1070         int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1071         ssize_t ret;
1072         struct iwl_sensitivity_data *data;
1073
1074         data = &priv->sensitivity_data;
1075         buf = kzalloc(bufsz, GFP_KERNEL);
1076         if (!buf) {
1077                 IWL_ERR(priv, "Can not allocate Buffer\n");
1078                 return -ENOMEM;
1079         }
1080
1081         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1082                         data->auto_corr_ofdm);
1083         pos += scnprintf(buf + pos, bufsz - pos,
1084                         "auto_corr_ofdm_mrc:\t\t %u\n",
1085                         data->auto_corr_ofdm_mrc);
1086         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1087                         data->auto_corr_ofdm_x1);
1088         pos += scnprintf(buf + pos, bufsz - pos,
1089                         "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1090                         data->auto_corr_ofdm_mrc_x1);
1091         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1092                         data->auto_corr_cck);
1093         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1094                         data->auto_corr_cck_mrc);
1095         pos += scnprintf(buf + pos, bufsz - pos,
1096                         "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1097                         data->last_bad_plcp_cnt_ofdm);
1098         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1099                         data->last_fa_cnt_ofdm);
1100         pos += scnprintf(buf + pos, bufsz - pos,
1101                         "last_bad_plcp_cnt_cck:\t\t %u\n",
1102                         data->last_bad_plcp_cnt_cck);
1103         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1104                         data->last_fa_cnt_cck);
1105         pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1106                         data->nrg_curr_state);
1107         pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1108                         data->nrg_prev_state);
1109         pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1110         for (cnt = 0; cnt < 10; cnt++) {
1111                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1112                                 data->nrg_value[cnt]);
1113         }
1114         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1115         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1116         for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1117                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1118                                 data->nrg_silence_rssi[cnt]);
1119         }
1120         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1121         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1122                         data->nrg_silence_ref);
1123         pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1124                         data->nrg_energy_idx);
1125         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1126                         data->nrg_silence_idx);
1127         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1128                         data->nrg_th_cck);
1129         pos += scnprintf(buf + pos, bufsz - pos,
1130                         "nrg_auto_corr_silence_diff:\t %u\n",
1131                         data->nrg_auto_corr_silence_diff);
1132         pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1133                         data->num_in_cck_no_fa);
1134         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1135                         data->nrg_th_ofdm);
1136
1137         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1138         kfree(buf);
1139         return ret;
1140 }
1141
1142
1143 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1144                                         char __user *user_buf,
1145                                         size_t count, loff_t *ppos) {
1146
1147         struct iwl_priv *priv = file->private_data;
1148         int pos = 0;
1149         int cnt = 0;
1150         char *buf;
1151         int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1152         ssize_t ret;
1153         struct iwl_chain_noise_data *data;
1154
1155         data = &priv->chain_noise_data;
1156         buf = kzalloc(bufsz, GFP_KERNEL);
1157         if (!buf) {
1158                 IWL_ERR(priv, "Can not allocate Buffer\n");
1159                 return -ENOMEM;
1160         }
1161
1162         pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1163                         data->active_chains);
1164         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1165                         data->chain_noise_a);
1166         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1167                         data->chain_noise_b);
1168         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1169                         data->chain_noise_c);
1170         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1171                         data->chain_signal_a);
1172         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1173                         data->chain_signal_b);
1174         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1175                         data->chain_signal_c);
1176         pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1177                         data->beacon_count);
1178
1179         pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1180         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1181                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1182                                 data->disconn_array[cnt]);
1183         }
1184         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1185         pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1186         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1187                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1188                                 data->delta_gain_code[cnt]);
1189         }
1190         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1191         pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1192                         data->radio_write);
1193         pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1194                         data->state);
1195
1196         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1197         kfree(buf);
1198         return ret;
1199 }
1200
1201 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1202                                                     char __user *user_buf,
1203                                                     size_t count, loff_t *ppos)
1204 {
1205         struct iwl_priv *priv = file->private_data;
1206         char buf[60];
1207         int pos = 0;
1208         const size_t bufsz = sizeof(buf);
1209         u32 pwrsave_status;
1210
1211         pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
1212                         CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1213
1214         pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1215         pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1216                 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1217                 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1218                 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1219                 "error");
1220
1221         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1222 }
1223
1224 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1225                                          const char __user *user_buf,
1226                                          size_t count, loff_t *ppos)
1227 {
1228         struct iwl_priv *priv = file->private_data;
1229         char buf[8];
1230         int buf_size;
1231         int clear;
1232
1233         memset(buf, 0, sizeof(buf));
1234         buf_size = min(count, sizeof(buf) -  1);
1235         if (copy_from_user(buf, user_buf, buf_size))
1236                 return -EFAULT;
1237         if (sscanf(buf, "%d", &clear) != 1)
1238                 return -EFAULT;
1239
1240         /* make request to uCode to retrieve statistics information */
1241         mutex_lock(&priv->mutex);
1242         iwl_send_statistics_request(priv, CMD_SYNC, true);
1243         mutex_unlock(&priv->mutex);
1244
1245         return count;
1246 }
1247
1248 static ssize_t iwl_dbgfs_csr_write(struct file *file,
1249                                          const char __user *user_buf,
1250                                          size_t count, loff_t *ppos)
1251 {
1252         struct iwl_priv *priv = file->private_data;
1253         char buf[8];
1254         int buf_size;
1255         int csr;
1256
1257         memset(buf, 0, sizeof(buf));
1258         buf_size = min(count, sizeof(buf) -  1);
1259         if (copy_from_user(buf, user_buf, buf_size))
1260                 return -EFAULT;
1261         if (sscanf(buf, "%d", &csr) != 1)
1262                 return -EFAULT;
1263
1264         if (priv->cfg->ops->lib->dump_csr)
1265                 priv->cfg->ops->lib->dump_csr(priv);
1266
1267         return count;
1268 }
1269
1270 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1271                                         char __user *user_buf,
1272                                         size_t count, loff_t *ppos) {
1273
1274         struct iwl_priv *priv = file->private_data;
1275         int pos = 0;
1276         char buf[128];
1277         const size_t bufsz = sizeof(buf);
1278
1279         pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1280                         priv->event_log.ucode_trace ? "On" : "Off");
1281         pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1282                         priv->event_log.non_wraps_count);
1283         pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1284                         priv->event_log.wraps_once_count);
1285         pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1286                         priv->event_log.wraps_more_count);
1287
1288         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1289 }
1290
1291 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1292                                          const char __user *user_buf,
1293                                          size_t count, loff_t *ppos)
1294 {
1295         struct iwl_priv *priv = file->private_data;
1296         char buf[8];
1297         int buf_size;
1298         int trace;
1299
1300         memset(buf, 0, sizeof(buf));
1301         buf_size = min(count, sizeof(buf) -  1);
1302         if (copy_from_user(buf, user_buf, buf_size))
1303                 return -EFAULT;
1304         if (sscanf(buf, "%d", &trace) != 1)
1305                 return -EFAULT;
1306
1307         if (trace) {
1308                 priv->event_log.ucode_trace = true;
1309                 /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
1310                 mod_timer(&priv->ucode_trace,
1311                         jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
1312         } else {
1313                 priv->event_log.ucode_trace = false;
1314                 del_timer_sync(&priv->ucode_trace);
1315         }
1316
1317         return count;
1318 }
1319
1320 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1321                                          char __user *user_buf,
1322                                          size_t count, loff_t *ppos) {
1323
1324         struct iwl_priv *priv = file->private_data;
1325         int len = 0;
1326         char buf[20];
1327
1328         len = sprintf(buf, "0x%04X\n",
1329                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1330         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1331 }
1332
1333 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1334                                                 char __user *user_buf,
1335                                                 size_t count, loff_t *ppos) {
1336
1337         struct iwl_priv *priv = file->private_data;
1338         int len = 0;
1339         char buf[20];
1340
1341         len = sprintf(buf, "0x%04X\n",
1342                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1343         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1344 }
1345
1346 static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
1347                                          char __user *user_buf,
1348                                          size_t count, loff_t *ppos)
1349 {
1350         struct iwl_priv *priv = file->private_data;
1351         char *buf;
1352         int pos = 0;
1353         ssize_t ret = -EFAULT;
1354
1355         if (priv->cfg->ops->lib->dump_fh) {
1356                 ret = pos = priv->cfg->ops->lib->dump_fh(priv, &buf, true);
1357                 if (buf) {
1358                         ret = simple_read_from_buffer(user_buf,
1359                                                       count, ppos, buf, pos);
1360                         kfree(buf);
1361                 }
1362         }
1363
1364         return ret;
1365 }
1366
1367 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1368                                         char __user *user_buf,
1369                                         size_t count, loff_t *ppos) {
1370
1371         struct iwl_priv *priv = file->private_data;
1372         int pos = 0;
1373         char buf[12];
1374         const size_t bufsz = sizeof(buf);
1375
1376         pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1377                         priv->missed_beacon_threshold);
1378
1379         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1380 }
1381
1382 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1383                                          const char __user *user_buf,
1384                                          size_t count, loff_t *ppos)
1385 {
1386         struct iwl_priv *priv = file->private_data;
1387         char buf[8];
1388         int buf_size;
1389         int missed;
1390
1391         memset(buf, 0, sizeof(buf));
1392         buf_size = min(count, sizeof(buf) -  1);
1393         if (copy_from_user(buf, user_buf, buf_size))
1394                 return -EFAULT;
1395         if (sscanf(buf, "%d", &missed) != 1)
1396                 return -EINVAL;
1397
1398         if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1399             missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1400                 priv->missed_beacon_threshold =
1401                         IWL_MISSED_BEACON_THRESHOLD_DEF;
1402         else
1403                 priv->missed_beacon_threshold = missed;
1404
1405         return count;
1406 }
1407
1408 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1409                                         char __user *user_buf,
1410                                         size_t count, loff_t *ppos) {
1411
1412         struct iwl_priv *priv = file->private_data;
1413         int pos = 0;
1414         char buf[12];
1415         const size_t bufsz = sizeof(buf);
1416
1417         pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1418                         priv->cfg->plcp_delta_threshold);
1419
1420         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1421 }
1422
1423 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1424                                         const char __user *user_buf,
1425                                         size_t count, loff_t *ppos) {
1426
1427         struct iwl_priv *priv = file->private_data;
1428         char buf[8];
1429         int buf_size;
1430         int plcp;
1431
1432         memset(buf, 0, sizeof(buf));
1433         buf_size = min(count, sizeof(buf) -  1);
1434         if (copy_from_user(buf, user_buf, buf_size))
1435                 return -EFAULT;
1436         if (sscanf(buf, "%d", &plcp) != 1)
1437                 return -EINVAL;
1438         if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1439                 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1440                 priv->cfg->plcp_delta_threshold =
1441                         IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
1442         else
1443                 priv->cfg->plcp_delta_threshold = plcp;
1444         return count;
1445 }
1446
1447 static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
1448                                         char __user *user_buf,
1449                                         size_t count, loff_t *ppos) {
1450
1451         struct iwl_priv *priv = file->private_data;
1452         int i, pos = 0;
1453         char buf[300];
1454         const size_t bufsz = sizeof(buf);
1455         struct iwl_force_reset *force_reset;
1456
1457         for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
1458                 force_reset = &priv->force_reset[i];
1459                 pos += scnprintf(buf + pos, bufsz - pos,
1460                                 "Force reset method %d\n", i);
1461                 pos += scnprintf(buf + pos, bufsz - pos,
1462                                 "\tnumber of reset request: %d\n",
1463                                 force_reset->reset_request_count);
1464                 pos += scnprintf(buf + pos, bufsz - pos,
1465                                 "\tnumber of reset request success: %d\n",
1466                                 force_reset->reset_success_count);
1467                 pos += scnprintf(buf + pos, bufsz - pos,
1468                                 "\tnumber of reset request reject: %d\n",
1469                                 force_reset->reset_reject_count);
1470                 pos += scnprintf(buf + pos, bufsz - pos,
1471                                 "\treset duration: %lu\n",
1472                                 force_reset->reset_duration);
1473         }
1474         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1475 }
1476
1477 static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
1478                                         const char __user *user_buf,
1479                                         size_t count, loff_t *ppos) {
1480
1481         struct iwl_priv *priv = file->private_data;
1482         char buf[8];
1483         int buf_size;
1484         int reset, ret;
1485
1486         memset(buf, 0, sizeof(buf));
1487         buf_size = min(count, sizeof(buf) -  1);
1488         if (copy_from_user(buf, user_buf, buf_size))
1489                 return -EFAULT;
1490         if (sscanf(buf, "%d", &reset) != 1)
1491                 return -EINVAL;
1492         switch (reset) {
1493         case IWL_RF_RESET:
1494         case IWL_FW_RESET:
1495                 ret = iwl_force_reset(priv, reset, true);
1496                 break;
1497         default:
1498                 return -EINVAL;
1499         }
1500         return ret ? ret : count;
1501 }
1502
1503 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
1504                                         const char __user *user_buf,
1505                                         size_t count, loff_t *ppos) {
1506
1507         struct iwl_priv *priv = file->private_data;
1508         char buf[8];
1509         int buf_size;
1510         int flush;
1511
1512         memset(buf, 0, sizeof(buf));
1513         buf_size = min(count, sizeof(buf) -  1);
1514         if (copy_from_user(buf, user_buf, buf_size))
1515                 return -EFAULT;
1516         if (sscanf(buf, "%d", &flush) != 1)
1517                 return -EINVAL;
1518
1519         if (iwl_is_rfkill(priv))
1520                 return -EFAULT;
1521
1522         priv->cfg->ops->lib->dev_txfifo_flush(priv, IWL_DROP_ALL);
1523
1524         return count;
1525 }
1526
1527 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1528                                         char __user *user_buf,
1529                                         size_t count, loff_t *ppos)
1530 {
1531         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1532
1533         return priv->cfg->ops->lib->debugfs_ops.bt_stats_read(file,
1534                         user_buf, count, ppos);
1535 }
1536
1537 static ssize_t iwl_dbgfs_monitor_period_write(struct file *file,
1538                                         const char __user *user_buf,
1539                                         size_t count, loff_t *ppos) {
1540
1541         struct iwl_priv *priv = file->private_data;
1542         char buf[8];
1543         int buf_size;
1544         int period;
1545
1546         memset(buf, 0, sizeof(buf));
1547         buf_size = min(count, sizeof(buf) -  1);
1548         if (copy_from_user(buf, user_buf, buf_size))
1549                 return -EFAULT;
1550         if (sscanf(buf, "%d", &period) != 1)
1551                 return -EINVAL;
1552         if (period < 0 || period > IWL_MAX_MONITORING_PERIOD)
1553                 priv->cfg->monitor_recover_period = IWL_DEF_MONITORING_PERIOD;
1554         else
1555                 priv->cfg->monitor_recover_period = period;
1556
1557         if (priv->cfg->monitor_recover_period)
1558                 mod_timer(&priv->monitor_recover, jiffies + msecs_to_jiffies(
1559                           priv->cfg->monitor_recover_period));
1560         else
1561                 del_timer_sync(&priv->monitor_recover);
1562         return count;
1563 }
1564
1565 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
1566                                         char __user *user_buf,
1567                                         size_t count, loff_t *ppos) {
1568
1569         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1570         int pos = 0;
1571         char buf[200];
1572         const size_t bufsz = sizeof(buf);
1573         ssize_t ret;
1574
1575         pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
1576                 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
1577         pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
1578                          "last traffic notif: %d\n",
1579                 priv->bt_status ? "On" : "Off", priv->notif_bt_traffic_load);
1580         pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
1581                          "sco_active: %d, kill_ack_mask: %x, "
1582                          "kill_cts_mask: %x\n",
1583                 priv->bt_ch_announce, priv->bt_sco_active,
1584                 priv->kill_ack_mask, priv->kill_cts_mask);
1585
1586         pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
1587         switch (priv->bt_traffic_load) {
1588         case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
1589                 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
1590                 break;
1591         case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
1592                 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
1593                 break;
1594         case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
1595                 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
1596                 break;
1597         case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
1598         default:
1599                 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
1600                 break;
1601         }
1602
1603         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1604         return ret;
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         pos += scnprintf(buf + pos, bufsz - pos, "use %s for aggregation\n",
1618                          (priv->cfg->use_rts_for_aggregation) ? "rts/cts" :
1619                          "cts-to-self");
1620         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1621 }
1622
1623 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
1624                                         const char __user *user_buf,
1625                                         size_t count, loff_t *ppos) {
1626
1627         struct iwl_priv *priv = file->private_data;
1628         char buf[8];
1629         int buf_size;
1630         int rts;
1631
1632         memset(buf, 0, sizeof(buf));
1633         buf_size = min(count, sizeof(buf) -  1);
1634         if (copy_from_user(buf, user_buf, buf_size))
1635                 return -EFAULT;
1636         if (sscanf(buf, "%d", &rts) != 1)
1637                 return -EINVAL;
1638         if (rts)
1639                 priv->cfg->use_rts_for_aggregation = true;
1640         else
1641                 priv->cfg->use_rts_for_aggregation = false;
1642         return count;
1643 }
1644
1645 DEBUGFS_READ_FILE_OPS(rx_statistics);
1646 DEBUGFS_READ_FILE_OPS(tx_statistics);
1647 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
1648 DEBUGFS_READ_FILE_OPS(rx_queue);
1649 DEBUGFS_READ_FILE_OPS(tx_queue);
1650 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
1651 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
1652 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
1653 DEBUGFS_READ_FILE_OPS(sensitivity);
1654 DEBUGFS_READ_FILE_OPS(chain_noise);
1655 DEBUGFS_READ_FILE_OPS(power_save_status);
1656 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
1657 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
1658 DEBUGFS_WRITE_FILE_OPS(csr);
1659 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
1660 DEBUGFS_READ_FILE_OPS(fh_reg);
1661 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
1662 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
1663 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
1664 DEBUGFS_READ_FILE_OPS(rxon_flags);
1665 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
1666 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
1667 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
1668 DEBUGFS_WRITE_FILE_OPS(monitor_period);
1669 DEBUGFS_READ_FILE_OPS(bt_traffic);
1670 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
1671
1672 /*
1673  * Create the debugfs files and directories
1674  *
1675  */
1676 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
1677 {
1678         struct dentry *phyd = priv->hw->wiphy->debugfsdir;
1679         struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
1680
1681         dir_drv = debugfs_create_dir(name, phyd);
1682         if (!dir_drv)
1683                 return -ENOMEM;
1684
1685         priv->debugfs_dir = dir_drv;
1686
1687         dir_data = debugfs_create_dir("data", dir_drv);
1688         if (!dir_data)
1689                 goto err;
1690         dir_rf = debugfs_create_dir("rf", dir_drv);
1691         if (!dir_rf)
1692                 goto err;
1693         dir_debug = debugfs_create_dir("debug", dir_drv);
1694         if (!dir_debug)
1695                 goto err;
1696
1697         DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
1698         DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
1699         DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR);
1700         DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
1701         DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
1702         DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
1703         DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
1704         DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
1705         DEBUGFS_ADD_FILE(led, dir_data, S_IRUSR);
1706         if (!priv->cfg->broken_powersave) {
1707                 DEBUGFS_ADD_FILE(sleep_level_override, dir_data,
1708                                  S_IWUSR | S_IRUSR);
1709                 DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
1710         }
1711         DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
1712         DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
1713         DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
1714         DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
1715         DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
1716         DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
1717         DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
1718         DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
1719         DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
1720         DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
1721         DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
1722         DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
1723         DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
1724         DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
1725         DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
1726         DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
1727         DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
1728         DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
1729         if (priv->cfg->ops->lib->dev_txfifo_flush)
1730                 DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
1731         DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
1732
1733         if (priv->cfg->sensitivity_calib_by_driver)
1734                 DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
1735         if (priv->cfg->chain_noise_calib_by_driver)
1736                 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
1737         if (priv->cfg->ucode_tracing)
1738                 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
1739         if (priv->cfg->bt_statistics)
1740                 DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
1741         DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
1742         DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
1743         DEBUGFS_ADD_FILE(monitor_period, dir_debug, S_IWUSR);
1744         if (priv->cfg->advanced_bt_coexist)
1745                 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
1746         if (priv->cfg->sensitivity_calib_by_driver)
1747                 DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
1748                                  &priv->disable_sens_cal);
1749         if (priv->cfg->chain_noise_calib_by_driver)
1750                 DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
1751                                  &priv->disable_chain_noise_cal);
1752         if (priv->cfg->tx_power_by_driver)
1753                 DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf,
1754                                 &priv->disable_tx_power_cal);
1755         return 0;
1756
1757 err:
1758         IWL_ERR(priv, "Can't create the debugfs directory\n");
1759         iwl_dbgfs_unregister(priv);
1760         return -ENOMEM;
1761 }
1762 EXPORT_SYMBOL(iwl_dbgfs_register);
1763
1764 /**
1765  * Remove the debugfs files and directories
1766  *
1767  */
1768 void iwl_dbgfs_unregister(struct iwl_priv *priv)
1769 {
1770         if (!priv->debugfs_dir)
1771                 return;
1772
1773         debugfs_remove_recursive(priv->debugfs_dir);
1774         priv->debugfs_dir = NULL;
1775 }
1776 EXPORT_SYMBOL(iwl_dbgfs_unregister);
1777
1778
1779