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

   1 /******************************************************************************
   2  *
   3  * GPL LICENSE SUMMARY
   4  *
   5  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of version 2 of the GNU General Public License as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  19  * USA
  20  *
  21  * The full GNU General Public License is included in this distribution
  22  * in the file called LICENSE.GPL.
  23  *
  24  * Contact Information:
  25  *  Intel Linux Wireless <ilw@linux.intel.com>
  26  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  27  *****************************************************************************/
  28
  29 #include <linux/slab.h>
  30 #include <linux/kernel.h>
  31 #include <linux/module.h>
  32 #include <linux/debugfs.h>
  33
  34 #include <linux/ieee80211.h>
  35 #include <net/mac80211.h>
  36
  37
  38 #include "iwl-dev.h"
  39 #include "iwl-debug.h"
  40 #include "iwl-core.h"
  41 #include "iwl-io.h"
  42 #include "iwl-agn.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         .llseek = generic_file_llseek,                                  \
  91 };
  92
  93 #define DEBUGFS_WRITE_FILE_OPS(name)                                    \
  94         DEBUGFS_WRITE_FUNC(name);                                       \
  95 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  96         .write = iwl_dbgfs_##name##_write,                              \
  97         .open = iwl_dbgfs_open_file_generic,                            \
  98         .llseek = generic_file_llseek,                                  \
  99 };
 100
 101
 102 #define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
 103         DEBUGFS_READ_FUNC(name);                                        \
 104         DEBUGFS_WRITE_FUNC(name);                                       \
 105 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
 106         .write = iwl_dbgfs_##name##_write,                              \
 107         .read = iwl_dbgfs_##name##_read,                                \
 108         .open = iwl_dbgfs_open_file_generic,                            \
 109         .llseek = generic_file_llseek,                                  \
 110 };
 111
 112 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
 113                                                 char __user *user_buf,
 114                                                 size_t count, loff_t *ppos) {
 115
 116         struct iwl_priv *priv = file->private_data;
 117         char *buf;
 118         int pos = 0;
 119
 120         int cnt;
 121         ssize_t ret;
 122         const size_t bufsz = 100 +
 123                 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
 124         buf = kzalloc(bufsz, GFP_KERNEL);
 125         if (!buf)
 126                 return -ENOMEM;
 127         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
 128         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
 129                 pos += scnprintf(buf + pos, bufsz - pos,
 130                                  "\t%25s\t\t: %u\n",
 131                                  get_mgmt_string(cnt),
 132                                  priv->tx_stats.mgmt[cnt]);
 133         }
 134         pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
 135         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
 136                 pos += scnprintf(buf + pos, bufsz - pos,
 137                                  "\t%25s\t\t: %u\n",
 138                                  get_ctrl_string(cnt),
 139                                  priv->tx_stats.ctrl[cnt]);
 140         }
 141         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
 142         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
 143                          priv->tx_stats.data_cnt);
 144         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
 145                          priv->tx_stats.data_bytes);
 146         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 147         kfree(buf);
 148         return ret;
 149 }
 150
 151 static ssize_t iwl_dbgfs_clear_traffic_statistics_write(struct file *file,
 152                                         const char __user *user_buf,
 153                                         size_t count, loff_t *ppos)
 154 {
 155         struct iwl_priv *priv = file->private_data;
 156         u32 clear_flag;
 157         char buf[8];
 158         int buf_size;
 159
 160         memset(buf, 0, sizeof(buf));
 161         buf_size = min(count, sizeof(buf) -  1);
 162         if (copy_from_user(buf, user_buf, buf_size))
 163                 return -EFAULT;
 164         if (sscanf(buf, "%x", &clear_flag) != 1)
 165                 return -EFAULT;
 166         iwl_clear_traffic_stats(priv);
 167
 168         return count;
 169 }
 170
 171 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
 172                                                 char __user *user_buf,
 173                                                 size_t count, loff_t *ppos) {
 174
 175         struct iwl_priv *priv = file->private_data;
 176         char *buf;
 177         int pos = 0;
 178         int cnt;
 179         ssize_t ret;
 180         const size_t bufsz = 100 +
 181                 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
 182         buf = kzalloc(bufsz, GFP_KERNEL);
 183         if (!buf)
 184                 return -ENOMEM;
 185
 186         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
 187         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
 188                 pos += scnprintf(buf + pos, bufsz - pos,
 189                                  "\t%25s\t\t: %u\n",
 190                                  get_mgmt_string(cnt),
 191                                  priv->rx_stats.mgmt[cnt]);
 192         }
 193         pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
 194         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
 195                 pos += scnprintf(buf + pos, bufsz - pos,
 196                                  "\t%25s\t\t: %u\n",
 197                                  get_ctrl_string(cnt),
 198                                  priv->rx_stats.ctrl[cnt]);
 199         }
 200         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
 201         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
 202                          priv->rx_stats.data_cnt);
 203         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
 204                          priv->rx_stats.data_bytes);
 205
 206         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 207         kfree(buf);
 208         return ret;
 209 }
 210
 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 = 0;
 216         char *buf;
 217         ssize_t ret;
 218         int i = 0;
 219         bool device_format = false;
 220         int offset = 0;
 221         int len = 0;
 222         int pos = 0;
 223         int sram;
 224         struct iwl_priv *priv = file->private_data;
 225         size_t bufsz;
 226
 227         /* default is to dump the entire data segment */
 228         if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
 229                 priv->dbgfs_sram_offset = 0x800000;
 230                 if (priv->ucode_type == IWL_UCODE_INIT)
 231                         priv->dbgfs_sram_len = priv->ucode_init.data.len;
 232                 else
 233                         priv->dbgfs_sram_len = priv->ucode_rt.data.len;
 234         }
 235         len = priv->dbgfs_sram_len;
 236
 237         if (len == -4) {
 238                 device_format = true;
 239                 len = 4;
 240         }
 241
 242         bufsz =  50 + len * 4;
 243         buf = kmalloc(bufsz, GFP_KERNEL);
 244         if (!buf)
 245                 return -ENOMEM;
 246
 247         pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
 248                          len);
 249         pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
 250                         priv->dbgfs_sram_offset);
 251
 252         /* adjust sram address since reads are only on even u32 boundaries */
 253         offset = priv->dbgfs_sram_offset & 0x3;
 254         sram = priv->dbgfs_sram_offset & ~0x3;
 255
 256         /* read the first u32 from sram */
 257         val = iwl_read_targ_mem(priv, sram);
 258
 259         for (; len; len--) {
 260                 /* put the address at the start of every line */
 261                 if (i == 0)
 262                         pos += scnprintf(buf + pos, bufsz - pos,
 263                                 "%08X: ", sram + offset);
 264
 265                 if (device_format)
 266                         pos += scnprintf(buf + pos, bufsz - pos,
 267                                 "%02x", (val >> (8 * (3 - offset))) & 0xff);
 268                 else
 269                         pos += scnprintf(buf + pos, bufsz - pos,
 270                                 "%02x ", (val >> (8 * offset)) & 0xff);
 271
 272                 /* if all bytes processed, read the next u32 from sram */
 273                 if (++offset == 4) {
 274                         sram += 4;
 275                         offset = 0;
 276                         val = iwl_read_targ_mem(priv, sram);
 277                 }
 278
 279                 /* put in extra spaces and split lines for human readability */
 280                 if (++i == 16) {
 281                         i = 0;
 282                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 283                 } else if (!(i & 7)) {
 284                         pos += scnprintf(buf + pos, bufsz - pos, "   ");
 285                 } else if (!(i & 3)) {
 286                         pos += scnprintf(buf + pos, bufsz - pos, " ");
 287                 }
 288         }
 289         if (i)
 290                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 291
 292         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 293         kfree(buf);
 294         return ret;
 295 }
 296
 297 static ssize_t iwl_dbgfs_sram_write(struct file *file,
 298                                         const char __user *user_buf,
 299                                         size_t count, loff_t *ppos)
 300 {
 301         struct iwl_priv *priv = file->private_data;
 302         char buf[64];
 303         int buf_size;
 304         u32 offset, len;
 305
 306         memset(buf, 0, sizeof(buf));
 307         buf_size = min(count, sizeof(buf) -  1);
 308         if (copy_from_user(buf, user_buf, buf_size))
 309                 return -EFAULT;
 310
 311         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 312                 priv->dbgfs_sram_offset = offset;
 313                 priv->dbgfs_sram_len = len;
 314         } else if (sscanf(buf, "%x", &offset) == 1) {
 315                 priv->dbgfs_sram_offset = offset;
 316                 priv->dbgfs_sram_len = -4;
 317         } else {
 318                 priv->dbgfs_sram_offset = 0;
 319                 priv->dbgfs_sram_len = 0;
 320         }
 321
 322         return count;
 323 }
 324
 325 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 326                                         size_t count, loff_t *ppos)
 327 {
 328         struct iwl_priv *priv = file->private_data;
 329         struct iwl_station_entry *station;
 330         int max_sta = priv->hw_params.max_stations;
 331         char *buf;
 332         int i, j, pos = 0;
 333         ssize_t ret;
 334         /* Add 30 for initial string */
 335         const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
 336
 337         buf = kmalloc(bufsz, GFP_KERNEL);
 338         if (!buf)
 339                 return -ENOMEM;
 340
 341         pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
 342                         priv->num_stations);
 343
 344         for (i = 0; i < max_sta; i++) {
 345                 station = &priv->stations[i];
 346                 if (!station->used)
 347                         continue;
 348                 pos += scnprintf(buf + pos, bufsz - pos,
 349                                  "station %d - addr: %pM, flags: %#x\n",
 350                                  i, station->sta.sta.addr,
 351                                  station->sta.station_flags_msk);
 352                 pos += scnprintf(buf + pos, bufsz - pos,
 353                                 "TID\tseq_num\ttxq_id\tframes\ttfds\t");
 354                 pos += scnprintf(buf + pos, bufsz - pos,
 355                                 "start_idx\tbitmap\t\t\trate_n_flags\n");
 356
 357                 for (j = 0; j < MAX_TID_COUNT; j++) {
 358                         pos += scnprintf(buf + pos, bufsz - pos,
 359                                 "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
 360                                 j, station->tid[j].seq_number,
 361                                 station->tid[j].agg.txq_id,
 362                                 station->tid[j].agg.frame_count,
 363                                 station->tid[j].tfds_in_queue,
 364                                 station->tid[j].agg.start_idx,
 365                                 station->tid[j].agg.bitmap,
 366                                 station->tid[j].agg.rate_n_flags);
 367
 368                         if (station->tid[j].agg.wait_for_ba)
 369                                 pos += scnprintf(buf + pos, bufsz - pos,
 370                                                  " - waitforba");
 371                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 372                 }
 373
 374                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 375         }
 376
 377         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 378         kfree(buf);
 379         return ret;
 380 }
 381
 382 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
 383                                        char __user *user_buf,
 384                                        size_t count,
 385                                        loff_t *ppos)
 386 {
 387         ssize_t ret;
 388         struct iwl_priv *priv = file->private_data;
 389         int pos = 0, ofs = 0, buf_size = 0;
 390         const u8 *ptr;
 391         char *buf;
 392         u16 eeprom_ver;
 393         size_t eeprom_len = priv->cfg->base_params->eeprom_size;
 394         buf_size = 4 * eeprom_len + 256;
 395
 396         if (eeprom_len % 16) {
 397                 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
 398                 return -ENODATA;
 399         }
 400
 401         ptr = priv->eeprom;
 402         if (!ptr) {
 403                 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
 404                 return -ENOMEM;
 405         }
 406
 407         /* 4 characters for byte 0xYY */
 408         buf = kzalloc(buf_size, GFP_KERNEL);
 409         if (!buf) {
 410                 IWL_ERR(priv, "Can not allocate Buffer\n");
 411                 return -ENOMEM;
 412         }
 413         eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
 414         pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
 415                         "version: 0x%x\n",
 416                         (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
 417                          ? "OTP" : "EEPROM", eeprom_ver);
 418         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
 419                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
 420                 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
 421                                    buf_size - pos, 0);
 422                 pos += strlen(buf + pos);
 423                 if (buf_size - pos > 0)
 424                         buf[pos++] = '\n';
 425         }
 426
 427         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 428         kfree(buf);
 429         return ret;
 430 }
 431
 432 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
 433                                          char __user *user_buf,
 434                                          size_t count, loff_t *ppos)
 435 {
 436         struct iwl_priv *priv = file->private_data;
 437         char *buf;
 438         int pos = 0;
 439         ssize_t ret = -ENOMEM;
 440
 441         ret = pos = iwl_dump_nic_event_log(priv, true, &buf, true);
 442         if (buf) {
 443                 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 444                 kfree(buf);
 445         }
 446         return ret;
 447 }
 448
 449 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
 450                                         const char __user *user_buf,
 451                                         size_t count, loff_t *ppos)
 452 {
 453         struct iwl_priv *priv = file->private_data;
 454         u32 event_log_flag;
 455         char buf[8];
 456         int buf_size;
 457
 458         memset(buf, 0, sizeof(buf));
 459         buf_size = min(count, sizeof(buf) -  1);
 460         if (copy_from_user(buf, user_buf, buf_size))
 461                 return -EFAULT;
 462         if (sscanf(buf, "%d", &event_log_flag) != 1)
 463                 return -EFAULT;
 464         if (event_log_flag == 1)
 465                 iwl_dump_nic_event_log(priv, true, NULL, false);
 466
 467         return count;
 468 }
 469
 470
 471
 472 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 473                                        size_t count, loff_t *ppos)
 474 {
 475         struct iwl_priv *priv = file->private_data;
 476         struct ieee80211_channel *channels = NULL;
 477         const struct ieee80211_supported_band *supp_band = NULL;
 478         int pos = 0, i, bufsz = PAGE_SIZE;
 479         char *buf;
 480         ssize_t ret;
 481
 482         if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
 483                 return -EAGAIN;
 484
 485         buf = kzalloc(bufsz, GFP_KERNEL);
 486         if (!buf) {
 487                 IWL_ERR(priv, "Can not allocate Buffer\n");
 488                 return -ENOMEM;
 489         }
 490
 491         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
 492         if (supp_band) {
 493                 channels = supp_band->channels;
 494
 495                 pos += scnprintf(buf + pos, bufsz - pos,
 496                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
 497                                 supp_band->n_channels);
 498
 499                 for (i = 0; i < supp_band->n_channels; i++)
 500                         pos += scnprintf(buf + pos, bufsz - pos,
 501                                         "%d: %ddBm: BSS%s%s, %s.\n",
 502                                         channels[i].hw_value,
 503                                         channels[i].max_power,
 504                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 505                                         " (IEEE 802.11h required)" : "",
 506                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 507                                         || (channels[i].flags &
 508                                         IEEE80211_CHAN_RADAR)) ? "" :
 509                                         ", IBSS",
 510                                         channels[i].flags &
 511                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 512                                         "passive only" : "active/passive");
 513         }
 514         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
 515         if (supp_band) {
 516                 channels = supp_band->channels;
 517
 518                 pos += scnprintf(buf + pos, bufsz - pos,
 519                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
 520                                 supp_band->n_channels);
 521
 522                 for (i = 0; i < supp_band->n_channels; i++)
 523                         pos += scnprintf(buf + pos, bufsz - pos,
 524                                         "%d: %ddBm: BSS%s%s, %s.\n",
 525                                         channels[i].hw_value,
 526                                         channels[i].max_power,
 527                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 528                                         " (IEEE 802.11h required)" : "",
 529                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 530                                         || (channels[i].flags &
 531                                         IEEE80211_CHAN_RADAR)) ? "" :
 532                                         ", IBSS",
 533                                         channels[i].flags &
 534                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 535                                         "passive only" : "active/passive");
 536         }
 537         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 538         kfree(buf);
 539         return ret;
 540 }
 541
 542 static ssize_t iwl_dbgfs_status_read(struct file *file,
 543                                                 char __user *user_buf,
 544                                                 size_t count, loff_t *ppos) {
 545
 546         struct iwl_priv *priv = file->private_data;
 547         char buf[512];
 548         int pos = 0;
 549         const size_t bufsz = sizeof(buf);
 550
 551         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
 552                 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
 553         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
 554                 test_bit(STATUS_INT_ENABLED, &priv->status));
 555         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 556                 test_bit(STATUS_RF_KILL_HW, &priv->status));
 557         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 558                 test_bit(STATUS_CT_KILL, &priv->status));
 559         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
 560                 test_bit(STATUS_INIT, &priv->status));
 561         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 562                 test_bit(STATUS_ALIVE, &priv->status));
 563         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 564                 test_bit(STATUS_READY, &priv->status));
 565         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
 566                 test_bit(STATUS_TEMPERATURE, &priv->status));
 567         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
 568                 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
 569         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 570                 test_bit(STATUS_EXIT_PENDING, &priv->status));
 571         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 572                 test_bit(STATUS_STATISTICS, &priv->status));
 573         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 574                 test_bit(STATUS_SCANNING, &priv->status));
 575         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 576                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
 577         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 578                 test_bit(STATUS_SCAN_HW, &priv->status));
 579         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 580                 test_bit(STATUS_POWER_PMI, &priv->status));
 581         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 582                 test_bit(STATUS_FW_ERROR, &priv->status));
 583         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 584 }
 585
 586 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
 587                                         char __user *user_buf,
 588                                         size_t count, loff_t *ppos) {
 589
 590         struct iwl_priv *priv = file->private_data;
 591         int pos = 0;
 592         int cnt = 0;
 593         char *buf;
 594         int bufsz = 24 * 64; /* 24 items * 64 char per item */
 595         ssize_t ret;
 596
 597         buf = kzalloc(bufsz, GFP_KERNEL);
 598         if (!buf) {
 599                 IWL_ERR(priv, "Can not allocate Buffer\n");
 600                 return -ENOMEM;
 601         }
 602
 603         pos += scnprintf(buf + pos, bufsz - pos,
 604                         "Interrupt Statistics Report:\n");
 605
 606         pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
 607                 priv->isr_stats.hw);
 608         pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
 609                 priv->isr_stats.sw);
 610         if (priv->isr_stats.sw || priv->isr_stats.hw) {
 611                 pos += scnprintf(buf + pos, bufsz - pos,
 612                         "\tLast Restarting Code:  0x%X\n",
 613                         priv->isr_stats.err_code);
 614         }
 615 #ifdef CONFIG_IWLWIFI_DEBUG
 616         pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
 617                 priv->isr_stats.sch);
 618         pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
 619                 priv->isr_stats.alive);
 620 #endif
 621         pos += scnprintf(buf + pos, bufsz - pos,
 622                 "HW RF KILL switch toggled:\t %u\n",
 623                 priv->isr_stats.rfkill);
 624
 625         pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
 626                 priv->isr_stats.ctkill);
 627
 628         pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
 629                 priv->isr_stats.wakeup);
 630
 631         pos += scnprintf(buf + pos, bufsz - pos,
 632                 "Rx command responses:\t\t %u\n",
 633                 priv->isr_stats.rx);
 634         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 635                 if (priv->isr_stats.rx_handlers[cnt] > 0)
 636                         pos += scnprintf(buf + pos, bufsz - pos,
 637                                 "\tRx handler[%36s]:\t\t %u\n",
 638                                 get_cmd_string(cnt),
 639                                 priv->isr_stats.rx_handlers[cnt]);
 640         }
 641
 642         pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
 643                 priv->isr_stats.tx);
 644
 645         pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
 646                 priv->isr_stats.unhandled);
 647
 648         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 649         kfree(buf);
 650         return ret;
 651 }
 652
 653 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
 654                                          const char __user *user_buf,
 655                                          size_t count, loff_t *ppos)
 656 {
 657         struct iwl_priv *priv = file->private_data;
 658         char buf[8];
 659         int buf_size;
 660         u32 reset_flag;
 661
 662         memset(buf, 0, sizeof(buf));
 663         buf_size = min(count, sizeof(buf) -  1);
 664         if (copy_from_user(buf, user_buf, buf_size))
 665                 return -EFAULT;
 666         if (sscanf(buf, "%x", &reset_flag) != 1)
 667                 return -EFAULT;
 668         if (reset_flag == 0)
 669                 iwl_clear_isr_stats(priv);
 670
 671         return count;
 672 }
 673
 674 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 675                                        size_t count, loff_t *ppos)
 676 {
 677         struct iwl_priv *priv = file->private_data;
 678         struct iwl_rxon_context *ctx;
 679         int pos = 0, i;
 680         char buf[256 * NUM_IWL_RXON_CTX];
 681         const size_t bufsz = sizeof(buf);
 682
 683         for_each_context(priv, ctx) {
 684                 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
 685                                  ctx->ctxid);
 686                 for (i = 0; i < AC_NUM; i++) {
 687                         pos += scnprintf(buf + pos, bufsz - pos,
 688                                 "\tcw_min\tcw_max\taifsn\ttxop\n");
 689                         pos += scnprintf(buf + pos, bufsz - pos,
 690                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
 691                                 ctx->qos_data.def_qos_parm.ac[i].cw_min,
 692                                 ctx->qos_data.def_qos_parm.ac[i].cw_max,
 693                                 ctx->qos_data.def_qos_parm.ac[i].aifsn,
 694                                 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
 695                 }
 696                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 697         }
 698         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 699 }
 700
 701 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 702                                 char __user *user_buf,
 703                                 size_t count, loff_t *ppos)
 704 {
 705         struct iwl_priv *priv = file->private_data;
 706         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 707         struct iwl_tt_restriction *restriction;
 708         char buf[100];
 709         int pos = 0;
 710         const size_t bufsz = sizeof(buf);
 711
 712         pos += scnprintf(buf + pos, bufsz - pos,
 713                         "Thermal Throttling Mode: %s\n",
 714                         tt->advanced_tt ? "Advance" : "Legacy");
 715         pos += scnprintf(buf + pos, bufsz - pos,
 716                         "Thermal Throttling State: %d\n",
 717                         tt->state);
 718         if (tt->advanced_tt) {
 719                 restriction = tt->restriction + tt->state;
 720                 pos += scnprintf(buf + pos, bufsz - pos,
 721                                 "Tx mode: %d\n",
 722                                 restriction->tx_stream);
 723                 pos += scnprintf(buf + pos, bufsz - pos,
 724                                 "Rx mode: %d\n",
 725                                 restriction->rx_stream);
 726                 pos += scnprintf(buf + pos, bufsz - pos,
 727                                 "HT mode: %d\n",
 728                                 restriction->is_ht);
 729         }
 730         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 731 }
 732
 733 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 734                                          const char __user *user_buf,
 735                                          size_t count, loff_t *ppos)
 736 {
 737         struct iwl_priv *priv = file->private_data;
 738         char buf[8];
 739         int buf_size;
 740         int ht40;
 741
 742         memset(buf, 0, sizeof(buf));
 743         buf_size = min(count, sizeof(buf) -  1);
 744         if (copy_from_user(buf, user_buf, buf_size))
 745                 return -EFAULT;
 746         if (sscanf(buf, "%d", &ht40) != 1)
 747                 return -EFAULT;
 748         if (!iwl_is_any_associated(priv))
 749                 priv->disable_ht40 = ht40 ? true : false;
 750         else {
 751                 IWL_ERR(priv, "Sta associated with AP - "
 752                         "Change to 40MHz channel support is not allowed\n");
 753                 return -EINVAL;
 754         }
 755
 756         return count;
 757 }
 758
 759 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 760                                          char __user *user_buf,
 761                                          size_t count, loff_t *ppos)
 762 {
 763         struct iwl_priv *priv = file->private_data;
 764         char buf[100];
 765         int pos = 0;
 766         const size_t bufsz = sizeof(buf);
 767
 768         pos += scnprintf(buf + pos, bufsz - pos,
 769                         "11n 40MHz Mode: %s\n",
 770                         priv->disable_ht40 ? "Disabled" : "Enabled");
 771         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 772 }
 773
 774 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 775                                                     const char __user *user_buf,
 776                                                     size_t count, loff_t *ppos)
 777 {
 778         struct iwl_priv *priv = file->private_data;
 779         char buf[8];
 780         int buf_size;
 781         int value;
 782
 783         memset(buf, 0, sizeof(buf));
 784         buf_size = min(count, sizeof(buf) -  1);
 785         if (copy_from_user(buf, user_buf, buf_size))
 786                 return -EFAULT;
 787
 788         if (sscanf(buf, "%d", &value) != 1)
 789                 return -EINVAL;
 790
 791         /*
 792          * Our users expect 0 to be "CAM", but 0 isn't actually
 793          * valid here. However, let's not confuse them and present
 794          * IWL_POWER_INDEX_1 as "1", not "0".
 795          */
 796         if (value == 0)
 797                 return -EINVAL;
 798         else if (value > 0)
 799                 value -= 1;
 800
 801         if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 802                 return -EINVAL;
 803
 804         if (!iwl_is_ready_rf(priv))
 805                 return -EAGAIN;
 806
 807         priv->power_data.debug_sleep_level_override = value;
 808
 809         mutex_lock(&priv->mutex);
 810         iwl_power_update_mode(priv, true);
 811         mutex_unlock(&priv->mutex);
 812
 813         return count;
 814 }
 815
 816 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 817                                                    char __user *user_buf,
 818                                                    size_t count, loff_t *ppos)
 819 {
 820         struct iwl_priv *priv = file->private_data;
 821         char buf[10];
 822         int pos, value;
 823         const size_t bufsz = sizeof(buf);
 824
 825         /* see the write function */
 826         value = priv->power_data.debug_sleep_level_override;
 827         if (value >= 0)
 828                 value += 1;
 829
 830         pos = scnprintf(buf, bufsz, "%d\n", value);
 831         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 832 }
 833
 834 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 835                                                     char __user *user_buf,
 836                                                     size_t count, loff_t *ppos)
 837 {
 838         struct iwl_priv *priv = file->private_data;
 839         char buf[200];
 840         int pos = 0, i;
 841         const size_t bufsz = sizeof(buf);
 842         struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 843
 844         pos += scnprintf(buf + pos, bufsz - pos,
 845                          "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 846         pos += scnprintf(buf + pos, bufsz - pos,
 847                          "RX/TX timeout: %d/%d usec\n",
 848                          le32_to_cpu(cmd->rx_data_timeout),
 849                          le32_to_cpu(cmd->tx_data_timeout));
 850         for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 851                 pos += scnprintf(buf + pos, bufsz - pos,
 852                                  "sleep_interval[%d]: %d\n", i,
 853                                  le32_to_cpu(cmd->sleep_interval[i]));
 854
 855         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 856 }
 857
 858 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 859 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
 860 DEBUGFS_READ_FILE_OPS(nvm);
 861 DEBUGFS_READ_FILE_OPS(stations);
 862 DEBUGFS_READ_FILE_OPS(channels);
 863 DEBUGFS_READ_FILE_OPS(status);
 864 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 865 DEBUGFS_READ_FILE_OPS(qos);
 866 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 867 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 868 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 869 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 870
 871 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
 872                                          char __user *user_buf,
 873                                          size_t count, loff_t *ppos)
 874 {
 875         struct iwl_priv *priv = file->private_data;
 876         int pos = 0, ofs = 0;
 877         int cnt = 0, entry;
 878         struct iwl_tx_queue *txq;
 879         struct iwl_queue *q;
 880         struct iwl_rx_queue *rxq = &priv->rxq;
 881         char *buf;
 882         int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
 883                 (priv->cfg->base_params->num_of_queues * 32 * 8) + 400;
 884         const u8 *ptr;
 885         ssize_t ret;
 886
 887         if (!priv->txq) {
 888                 IWL_ERR(priv, "txq not ready\n");
 889                 return -EAGAIN;
 890         }
 891         buf = kzalloc(bufsz, GFP_KERNEL);
 892         if (!buf) {
 893                 IWL_ERR(priv, "Can not allocate buffer\n");
 894                 return -ENOMEM;
 895         }
 896         pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
 897         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 898                 txq = &priv->txq[cnt];
 899                 q = &txq->q;
 900                 pos += scnprintf(buf + pos, bufsz - pos,
 901                                 "q[%d]: read_ptr: %u, write_ptr: %u\n",
 902                                 cnt, q->read_ptr, q->write_ptr);
 903         }
 904         if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
 905                 ptr = priv->tx_traffic;
 906                 pos += scnprintf(buf + pos, bufsz - pos,
 907                                 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
 908                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 909                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 910                              entry++,  ofs += 16) {
 911                                 pos += scnprintf(buf + pos, bufsz - pos,
 912                                                 "0x%.4x ", ofs);
 913                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 914                                                    buf + pos, bufsz - pos, 0);
 915                                 pos += strlen(buf + pos);
 916                                 if (bufsz - pos > 0)
 917                                         buf[pos++] = '\n';
 918                         }
 919                 }
 920         }
 921
 922         pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
 923         pos += scnprintf(buf + pos, bufsz - pos,
 924                         "read: %u, write: %u\n",
 925                          rxq->read, rxq->write);
 926
 927         if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
 928                 ptr = priv->rx_traffic;
 929                 pos += scnprintf(buf + pos, bufsz - pos,
 930                                 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
 931                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 932                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 933                              entry++,  ofs += 16) {
 934                                 pos += scnprintf(buf + pos, bufsz - pos,
 935                                                 "0x%.4x ", ofs);
 936                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 937                                                    buf + pos, bufsz - pos, 0);
 938                                 pos += strlen(buf + pos);
 939                                 if (bufsz - pos > 0)
 940                                         buf[pos++] = '\n';
 941                         }
 942                 }
 943         }
 944
 945         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 946         kfree(buf);
 947         return ret;
 948 }
 949
 950 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
 951                                          const char __user *user_buf,
 952                                          size_t count, loff_t *ppos)
 953 {
 954         struct iwl_priv *priv = file->private_data;
 955         char buf[8];
 956         int buf_size;
 957         int traffic_log;
 958
 959         memset(buf, 0, sizeof(buf));
 960         buf_size = min(count, sizeof(buf) -  1);
 961         if (copy_from_user(buf, user_buf, buf_size))
 962                 return -EFAULT;
 963         if (sscanf(buf, "%d", &traffic_log) != 1)
 964                 return -EFAULT;
 965         if (traffic_log == 0)
 966                 iwl_reset_traffic_log(priv);
 967
 968         return count;
 969 }
 970
 971 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
 972                                                 char __user *user_buf,
 973                                                 size_t count, loff_t *ppos) {
 974
 975         struct iwl_priv *priv = file->private_data;
 976         struct iwl_tx_queue *txq;
 977         struct iwl_queue *q;
 978         char *buf;
 979         int pos = 0;
 980         int cnt;
 981         int ret;
 982         const size_t bufsz = sizeof(char) * 64 *
 983                                 priv->cfg->base_params->num_of_queues;
 984
 985         if (!priv->txq) {
 986                 IWL_ERR(priv, "txq not ready\n");
 987                 return -EAGAIN;
 988         }
 989         buf = kzalloc(bufsz, GFP_KERNEL);
 990         if (!buf)
 991                 return -ENOMEM;
 992
 993         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 994                 txq = &priv->txq[cnt];
 995                 q = &txq->q;
 996                 pos += scnprintf(buf + pos, bufsz - pos,
 997                                 "hwq %.2d: read=%u write=%u stop=%d"
 998                                 " swq_id=%#.2x (ac %d/hwq %d)\n",
 999                                 cnt, q->read_ptr, q->write_ptr,
1000                                 !!test_bit(cnt, priv->queue_stopped),
1001                                 txq->swq_id, txq->swq_id & 3,
1002                                 (txq->swq_id >> 2) & 0x1f);
1003                 if (cnt >= 4)
1004                         continue;
1005                 /* for the ACs, display the stop count too */
1006                 pos += scnprintf(buf + pos, bufsz - pos,
1007                                 "        stop-count: %d\n",
1008                                 atomic_read(&priv->queue_stop_count[cnt]));
1009         }
1010         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1011         kfree(buf);
1012         return ret;
1013 }
1014
1015 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
1016                                                 char __user *user_buf,
1017                                                 size_t count, loff_t *ppos) {
1018
1019         struct iwl_priv *priv = file->private_data;
1020         struct iwl_rx_queue *rxq = &priv->rxq;
1021         char buf[256];
1022         int pos = 0;
1023         const size_t bufsz = sizeof(buf);
1024
1025         pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
1026                                                 rxq->read);
1027         pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
1028                                                 rxq->write);
1029         pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1030                                                 rxq->free_count);
1031         if (rxq->rb_stts) {
1032                 pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1033                          le16_to_cpu(rxq->rb_stts->closed_rb_num) &  0x0FFF);
1034         } else {
1035                 pos += scnprintf(buf + pos, bufsz - pos,
1036                                         "closed_rb_num: Not Allocated\n");
1037         }
1038         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1039 }
1040
1041 static const char *fmt_value = "  %-30s %10u\n";
1042 static const char *fmt_hex   = "  %-30s       0x%02X\n";
1043 static const char *fmt_table = "  %-30s %10u  %10u  %10u  %10u\n";
1044 static const char *fmt_header =
1045         "%-32s    current  cumulative       delta         max\n";
1046
1047 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
1048 {
1049         int p = 0;
1050         u32 flag;
1051
1052         flag = le32_to_cpu(priv->statistics.flag);
1053
1054         p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
1055         if (flag & UCODE_STATISTICS_CLEAR_MSK)
1056                 p += scnprintf(buf + p, bufsz - p,
1057                 "\tStatistics have been cleared\n");
1058         p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
1059                 (flag & UCODE_STATISTICS_FREQUENCY_MSK)
1060                 ? "2.4 GHz" : "5.2 GHz");
1061         p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
1062                 (flag & UCODE_STATISTICS_NARROW_BAND_MSK)
1063                  ? "enabled" : "disabled");
1064
1065         return p;
1066 }
1067
1068 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1069                                         char __user *user_buf,
1070                                         size_t count, loff_t *ppos)
1071 {
1072         struct iwl_priv *priv = file->private_data;
1073         int pos = 0;
1074         char *buf;
1075         int bufsz = sizeof(struct statistics_rx_phy) * 40 +
1076                     sizeof(struct statistics_rx_non_phy) * 40 +
1077                     sizeof(struct statistics_rx_ht_phy) * 40 + 400;
1078         ssize_t ret;
1079         struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
1080         struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
1081         struct statistics_rx_non_phy *general, *accum_general;
1082         struct statistics_rx_non_phy *delta_general, *max_general;
1083         struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
1084
1085         if (!iwl_is_alive(priv))
1086                 return -EAGAIN;
1087
1088         buf = kzalloc(bufsz, GFP_KERNEL);
1089         if (!buf) {
1090                 IWL_ERR(priv, "Can not allocate Buffer\n");
1091                 return -ENOMEM;
1092         }
1093
1094         /*
1095          * the statistic information display here is based on
1096          * the last statistics notification from uCode
1097          * might not reflect the current uCode activity
1098          */
1099         ofdm = &priv->statistics.rx_ofdm;
1100         cck = &priv->statistics.rx_cck;
1101         general = &priv->statistics.rx_non_phy;
1102         ht = &priv->statistics.rx_ofdm_ht;
1103         accum_ofdm = &priv->accum_stats.rx_ofdm;
1104         accum_cck = &priv->accum_stats.rx_cck;
1105         accum_general = &priv->accum_stats.rx_non_phy;
1106         accum_ht = &priv->accum_stats.rx_ofdm_ht;
1107         delta_ofdm = &priv->delta_stats.rx_ofdm;
1108         delta_cck = &priv->delta_stats.rx_cck;
1109         delta_general = &priv->delta_stats.rx_non_phy;
1110         delta_ht = &priv->delta_stats.rx_ofdm_ht;
1111         max_ofdm = &priv->max_delta_stats.rx_ofdm;
1112         max_cck = &priv->max_delta_stats.rx_cck;
1113         max_general = &priv->max_delta_stats.rx_non_phy;
1114         max_ht = &priv->max_delta_stats.rx_ofdm_ht;
1115
1116         pos += iwl_statistics_flag(priv, buf, bufsz);
1117         pos += scnprintf(buf + pos, bufsz - pos,
1118                          fmt_header, "Statistics_Rx - OFDM:");
1119         pos += scnprintf(buf + pos, bufsz - pos,
1120                          fmt_table, "ina_cnt:",
1121                          le32_to_cpu(ofdm->ina_cnt),
1122                          accum_ofdm->ina_cnt,
1123                          delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
1124         pos += scnprintf(buf + pos, bufsz - pos,
1125                          fmt_table, "fina_cnt:",
1126                          le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
1127                          delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
1128         pos += scnprintf(buf + pos, bufsz - pos,
1129                          fmt_table, "plcp_err:",
1130                          le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
1131                          delta_ofdm->plcp_err, max_ofdm->plcp_err);
1132         pos += scnprintf(buf + pos, bufsz - pos,
1133                          fmt_table, "crc32_err:",
1134                          le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
1135                          delta_ofdm->crc32_err, max_ofdm->crc32_err);
1136         pos += scnprintf(buf + pos, bufsz - pos,
1137                          fmt_table, "overrun_err:",
1138                          le32_to_cpu(ofdm->overrun_err),
1139                          accum_ofdm->overrun_err, delta_ofdm->overrun_err,
1140                          max_ofdm->overrun_err);
1141         pos += scnprintf(buf + pos, bufsz - pos,
1142                          fmt_table, "early_overrun_err:",
1143                          le32_to_cpu(ofdm->early_overrun_err),
1144                          accum_ofdm->early_overrun_err,
1145                          delta_ofdm->early_overrun_err,
1146                          max_ofdm->early_overrun_err);
1147         pos += scnprintf(buf + pos, bufsz - pos,
1148                          fmt_table, "crc32_good:",
1149                          le32_to_cpu(ofdm->crc32_good),
1150                          accum_ofdm->crc32_good, delta_ofdm->crc32_good,
1151                          max_ofdm->crc32_good);
1152         pos += scnprintf(buf + pos, bufsz - pos,
1153                          fmt_table, "false_alarm_cnt:",
1154                          le32_to_cpu(ofdm->false_alarm_cnt),
1155                          accum_ofdm->false_alarm_cnt,
1156                          delta_ofdm->false_alarm_cnt,
1157                          max_ofdm->false_alarm_cnt);
1158         pos += scnprintf(buf + pos, bufsz - pos,
1159                          fmt_table, "fina_sync_err_cnt:",
1160                          le32_to_cpu(ofdm->fina_sync_err_cnt),
1161                          accum_ofdm->fina_sync_err_cnt,
1162                          delta_ofdm->fina_sync_err_cnt,
1163                          max_ofdm->fina_sync_err_cnt);
1164         pos += scnprintf(buf + pos, bufsz - pos,
1165                          fmt_table, "sfd_timeout:",
1166                          le32_to_cpu(ofdm->sfd_timeout),
1167                          accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
1168                          max_ofdm->sfd_timeout);
1169         pos += scnprintf(buf + pos, bufsz - pos,
1170                          fmt_table, "fina_timeout:",
1171                          le32_to_cpu(ofdm->fina_timeout),
1172                          accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
1173                          max_ofdm->fina_timeout);
1174         pos += scnprintf(buf + pos, bufsz - pos,
1175                          fmt_table, "unresponded_rts:",
1176                          le32_to_cpu(ofdm->unresponded_rts),
1177                          accum_ofdm->unresponded_rts,
1178                          delta_ofdm->unresponded_rts,
1179                          max_ofdm->unresponded_rts);
1180         pos += scnprintf(buf + pos, bufsz - pos,
1181                          fmt_table, "rxe_frame_lmt_ovrun:",
1182                          le32_to_cpu(ofdm->rxe_frame_limit_overrun),
1183                          accum_ofdm->rxe_frame_limit_overrun,
1184                          delta_ofdm->rxe_frame_limit_overrun,
1185                          max_ofdm->rxe_frame_limit_overrun);
1186         pos += scnprintf(buf + pos, bufsz - pos,
1187                          fmt_table, "sent_ack_cnt:",
1188                          le32_to_cpu(ofdm->sent_ack_cnt),
1189                          accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
1190                          max_ofdm->sent_ack_cnt);
1191         pos += scnprintf(buf + pos, bufsz - pos,
1192                          fmt_table, "sent_cts_cnt:",
1193                          le32_to_cpu(ofdm->sent_cts_cnt),
1194                          accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
1195                          max_ofdm->sent_cts_cnt);
1196         pos += scnprintf(buf + pos, bufsz - pos,
1197                          fmt_table, "sent_ba_rsp_cnt:",
1198                          le32_to_cpu(ofdm->sent_ba_rsp_cnt),
1199                          accum_ofdm->sent_ba_rsp_cnt,
1200                          delta_ofdm->sent_ba_rsp_cnt,
1201                          max_ofdm->sent_ba_rsp_cnt);
1202         pos += scnprintf(buf + pos, bufsz - pos,
1203                          fmt_table, "dsp_self_kill:",
1204                          le32_to_cpu(ofdm->dsp_self_kill),
1205                          accum_ofdm->dsp_self_kill,
1206                          delta_ofdm->dsp_self_kill,
1207                          max_ofdm->dsp_self_kill);
1208         pos += scnprintf(buf + pos, bufsz - pos,
1209                          fmt_table, "mh_format_err:",
1210                          le32_to_cpu(ofdm->mh_format_err),
1211                          accum_ofdm->mh_format_err,
1212                          delta_ofdm->mh_format_err,
1213                          max_ofdm->mh_format_err);
1214         pos += scnprintf(buf + pos, bufsz - pos,
1215                          fmt_table, "re_acq_main_rssi_sum:",
1216                          le32_to_cpu(ofdm->re_acq_main_rssi_sum),
1217                          accum_ofdm->re_acq_main_rssi_sum,
1218                          delta_ofdm->re_acq_main_rssi_sum,
1219                          max_ofdm->re_acq_main_rssi_sum);
1220
1221         pos += scnprintf(buf + pos, bufsz - pos,
1222                          fmt_header, "Statistics_Rx - CCK:");
1223         pos += scnprintf(buf + pos, bufsz - pos,
1224                          fmt_table, "ina_cnt:",
1225                          le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
1226                          delta_cck->ina_cnt, max_cck->ina_cnt);
1227         pos += scnprintf(buf + pos, bufsz - pos,
1228                          fmt_table, "fina_cnt:",
1229                          le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
1230                          delta_cck->fina_cnt, max_cck->fina_cnt);
1231         pos += scnprintf(buf + pos, bufsz - pos,
1232                          fmt_table, "plcp_err:",
1233                          le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
1234                          delta_cck->plcp_err, max_cck->plcp_err);
1235         pos += scnprintf(buf + pos, bufsz - pos,
1236                          fmt_table, "crc32_err:",
1237                          le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
1238                          delta_cck->crc32_err, max_cck->crc32_err);
1239         pos += scnprintf(buf + pos, bufsz - pos,
1240                          fmt_table, "overrun_err:",
1241                          le32_to_cpu(cck->overrun_err),
1242                          accum_cck->overrun_err, delta_cck->overrun_err,
1243                          max_cck->overrun_err);
1244         pos += scnprintf(buf + pos, bufsz - pos,
1245                          fmt_table, "early_overrun_err:",
1246                          le32_to_cpu(cck->early_overrun_err),
1247                          accum_cck->early_overrun_err,
1248                          delta_cck->early_overrun_err,
1249                          max_cck->early_overrun_err);
1250         pos += scnprintf(buf + pos, bufsz - pos,
1251                          fmt_table, "crc32_good:",
1252                          le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
1253                          delta_cck->crc32_good, max_cck->crc32_good);
1254         pos += scnprintf(buf + pos, bufsz - pos,
1255                          fmt_table, "false_alarm_cnt:",
1256                          le32_to_cpu(cck->false_alarm_cnt),
1257                          accum_cck->false_alarm_cnt,
1258                          delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
1259         pos += scnprintf(buf + pos, bufsz - pos,
1260                          fmt_table, "fina_sync_err_cnt:",
1261                          le32_to_cpu(cck->fina_sync_err_cnt),
1262                          accum_cck->fina_sync_err_cnt,
1263                          delta_cck->fina_sync_err_cnt,
1264                          max_cck->fina_sync_err_cnt);
1265         pos += scnprintf(buf + pos, bufsz - pos,
1266                          fmt_table, "sfd_timeout:",
1267                          le32_to_cpu(cck->sfd_timeout),
1268                          accum_cck->sfd_timeout, delta_cck->sfd_timeout,
1269                          max_cck->sfd_timeout);
1270         pos += scnprintf(buf + pos, bufsz - pos,
1271                          fmt_table, "fina_timeout:",
1272                          le32_to_cpu(cck->fina_timeout),
1273                          accum_cck->fina_timeout, delta_cck->fina_timeout,
1274                          max_cck->fina_timeout);
1275         pos += scnprintf(buf + pos, bufsz - pos,
1276                          fmt_table, "unresponded_rts:",
1277                          le32_to_cpu(cck->unresponded_rts),
1278                          accum_cck->unresponded_rts, delta_cck->unresponded_rts,
1279                          max_cck->unresponded_rts);
1280         pos += scnprintf(buf + pos, bufsz - pos,
1281                          fmt_table, "rxe_frame_lmt_ovrun:",
1282                          le32_to_cpu(cck->rxe_frame_limit_overrun),
1283                          accum_cck->rxe_frame_limit_overrun,
1284                          delta_cck->rxe_frame_limit_overrun,
1285                          max_cck->rxe_frame_limit_overrun);
1286         pos += scnprintf(buf + pos, bufsz - pos,
1287                          fmt_table, "sent_ack_cnt:",
1288                          le32_to_cpu(cck->sent_ack_cnt),
1289                          accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
1290                          max_cck->sent_ack_cnt);
1291         pos += scnprintf(buf + pos, bufsz - pos,
1292                          fmt_table, "sent_cts_cnt:",
1293                          le32_to_cpu(cck->sent_cts_cnt),
1294                          accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
1295                          max_cck->sent_cts_cnt);
1296         pos += scnprintf(buf + pos, bufsz - pos,
1297                          fmt_table, "sent_ba_rsp_cnt:",
1298                          le32_to_cpu(cck->sent_ba_rsp_cnt),
1299                          accum_cck->sent_ba_rsp_cnt,
1300                          delta_cck->sent_ba_rsp_cnt,
1301                          max_cck->sent_ba_rsp_cnt);
1302         pos += scnprintf(buf + pos, bufsz - pos,
1303                          fmt_table, "dsp_self_kill:",
1304                          le32_to_cpu(cck->dsp_self_kill),
1305                          accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
1306                          max_cck->dsp_self_kill);
1307         pos += scnprintf(buf + pos, bufsz - pos,
1308                          fmt_table, "mh_format_err:",
1309                          le32_to_cpu(cck->mh_format_err),
1310                          accum_cck->mh_format_err, delta_cck->mh_format_err,
1311                          max_cck->mh_format_err);
1312         pos += scnprintf(buf + pos, bufsz - pos,
1313                          fmt_table, "re_acq_main_rssi_sum:",
1314                          le32_to_cpu(cck->re_acq_main_rssi_sum),
1315                          accum_cck->re_acq_main_rssi_sum,
1316                          delta_cck->re_acq_main_rssi_sum,
1317                          max_cck->re_acq_main_rssi_sum);
1318
1319         pos += scnprintf(buf + pos, bufsz - pos,
1320                          fmt_header, "Statistics_Rx - GENERAL:");
1321         pos += scnprintf(buf + pos, bufsz - pos,
1322                          fmt_table, "bogus_cts:",
1323                          le32_to_cpu(general->bogus_cts),
1324                          accum_general->bogus_cts, delta_general->bogus_cts,
1325                          max_general->bogus_cts);
1326         pos += scnprintf(buf + pos, bufsz - pos,
1327                          fmt_table, "bogus_ack:",
1328                          le32_to_cpu(general->bogus_ack),
1329                          accum_general->bogus_ack, delta_general->bogus_ack,
1330                          max_general->bogus_ack);
1331         pos += scnprintf(buf + pos, bufsz - pos,
1332                          fmt_table, "non_bssid_frames:",
1333                          le32_to_cpu(general->non_bssid_frames),
1334                          accum_general->non_bssid_frames,
1335                          delta_general->non_bssid_frames,
1336                          max_general->non_bssid_frames);
1337         pos += scnprintf(buf + pos, bufsz - pos,
1338                          fmt_table, "filtered_frames:",
1339                          le32_to_cpu(general->filtered_frames),
1340                          accum_general->filtered_frames,
1341                          delta_general->filtered_frames,
1342                          max_general->filtered_frames);
1343         pos += scnprintf(buf + pos, bufsz - pos,
1344                          fmt_table, "non_channel_beacons:",
1345                          le32_to_cpu(general->non_channel_beacons),
1346                          accum_general->non_channel_beacons,
1347                          delta_general->non_channel_beacons,
1348                          max_general->non_channel_beacons);
1349         pos += scnprintf(buf + pos, bufsz - pos,
1350                          fmt_table, "channel_beacons:",
1351                          le32_to_cpu(general->channel_beacons),
1352                          accum_general->channel_beacons,
1353                          delta_general->channel_beacons,
1354                          max_general->channel_beacons);
1355         pos += scnprintf(buf + pos, bufsz - pos,
1356                          fmt_table, "num_missed_bcon:",
1357                          le32_to_cpu(general->num_missed_bcon),
1358                          accum_general->num_missed_bcon,
1359                          delta_general->num_missed_bcon,
1360                          max_general->num_missed_bcon);
1361         pos += scnprintf(buf + pos, bufsz - pos,
1362                          fmt_table, "adc_rx_saturation_time:",
1363                          le32_to_cpu(general->adc_rx_saturation_time),
1364                          accum_general->adc_rx_saturation_time,
1365                          delta_general->adc_rx_saturation_time,
1366                          max_general->adc_rx_saturation_time);
1367         pos += scnprintf(buf + pos, bufsz - pos,
1368                          fmt_table, "ina_detect_search_tm:",
1369                          le32_to_cpu(general->ina_detection_search_time),
1370                          accum_general->ina_detection_search_time,
1371                          delta_general->ina_detection_search_time,
1372                          max_general->ina_detection_search_time);
1373         pos += scnprintf(buf + pos, bufsz - pos,
1374                          fmt_table, "beacon_silence_rssi_a:",
1375                          le32_to_cpu(general->beacon_silence_rssi_a),
1376                          accum_general->beacon_silence_rssi_a,
1377                          delta_general->beacon_silence_rssi_a,
1378                          max_general->beacon_silence_rssi_a);
1379         pos += scnprintf(buf + pos, bufsz - pos,
1380                          fmt_table, "beacon_silence_rssi_b:",
1381                          le32_to_cpu(general->beacon_silence_rssi_b),
1382                          accum_general->beacon_silence_rssi_b,
1383                          delta_general->beacon_silence_rssi_b,
1384                          max_general->beacon_silence_rssi_b);
1385         pos += scnprintf(buf + pos, bufsz - pos,
1386                          fmt_table, "beacon_silence_rssi_c:",
1387                          le32_to_cpu(general->beacon_silence_rssi_c),
1388                          accum_general->beacon_silence_rssi_c,
1389                          delta_general->beacon_silence_rssi_c,
1390                          max_general->beacon_silence_rssi_c);
1391         pos += scnprintf(buf + pos, bufsz - pos,
1392                          fmt_table, "interference_data_flag:",
1393                          le32_to_cpu(general->interference_data_flag),
1394                          accum_general->interference_data_flag,
1395                          delta_general->interference_data_flag,
1396                          max_general->interference_data_flag);
1397         pos += scnprintf(buf + pos, bufsz - pos,
1398                          fmt_table, "channel_load:",
1399                          le32_to_cpu(general->channel_load),
1400                          accum_general->channel_load,
1401                          delta_general->channel_load,
1402                          max_general->channel_load);
1403         pos += scnprintf(buf + pos, bufsz - pos,
1404                          fmt_table, "dsp_false_alarms:",
1405                          le32_to_cpu(general->dsp_false_alarms),
1406                          accum_general->dsp_false_alarms,
1407                          delta_general->dsp_false_alarms,
1408                          max_general->dsp_false_alarms);
1409         pos += scnprintf(buf + pos, bufsz - pos,
1410                          fmt_table, "beacon_rssi_a:",
1411                          le32_to_cpu(general->beacon_rssi_a),
1412                          accum_general->beacon_rssi_a,
1413                          delta_general->beacon_rssi_a,
1414                          max_general->beacon_rssi_a);
1415         pos += scnprintf(buf + pos, bufsz - pos,
1416                          fmt_table, "beacon_rssi_b:",
1417                          le32_to_cpu(general->beacon_rssi_b),
1418                          accum_general->beacon_rssi_b,
1419                          delta_general->beacon_rssi_b,
1420                          max_general->beacon_rssi_b);
1421         pos += scnprintf(buf + pos, bufsz - pos,
1422                          fmt_table, "beacon_rssi_c:",
1423                          le32_to_cpu(general->beacon_rssi_c),
1424                          accum_general->beacon_rssi_c,
1425                          delta_general->beacon_rssi_c,
1426                          max_general->beacon_rssi_c);
1427         pos += scnprintf(buf + pos, bufsz - pos,
1428                          fmt_table, "beacon_energy_a:",
1429                          le32_to_cpu(general->beacon_energy_a),
1430                          accum_general->beacon_energy_a,
1431                          delta_general->beacon_energy_a,
1432                          max_general->beacon_energy_a);
1433         pos += scnprintf(buf + pos, bufsz - pos,
1434                          fmt_table, "beacon_energy_b:",
1435                          le32_to_cpu(general->beacon_energy_b),
1436                          accum_general->beacon_energy_b,
1437                          delta_general->beacon_energy_b,
1438                          max_general->beacon_energy_b);
1439         pos += scnprintf(buf + pos, bufsz - pos,
1440                          fmt_table, "beacon_energy_c:",
1441                          le32_to_cpu(general->beacon_energy_c),
1442                          accum_general->beacon_energy_c,
1443                          delta_general->beacon_energy_c,
1444                          max_general->beacon_energy_c);
1445
1446         pos += scnprintf(buf + pos, bufsz - pos,
1447                          fmt_header, "Statistics_Rx - OFDM_HT:");
1448         pos += scnprintf(buf + pos, bufsz - pos,
1449                          fmt_table, "plcp_err:",
1450                          le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1451                          delta_ht->plcp_err, max_ht->plcp_err);
1452         pos += scnprintf(buf + pos, bufsz - pos,
1453                          fmt_table, "overrun_err:",
1454                          le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1455                          delta_ht->overrun_err, max_ht->overrun_err);
1456         pos += scnprintf(buf + pos, bufsz - pos,
1457                          fmt_table, "early_overrun_err:",
1458                          le32_to_cpu(ht->early_overrun_err),
1459                          accum_ht->early_overrun_err,
1460                          delta_ht->early_overrun_err,
1461                          max_ht->early_overrun_err);
1462         pos += scnprintf(buf + pos, bufsz - pos,
1463                          fmt_table, "crc32_good:",
1464                          le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1465                          delta_ht->crc32_good, max_ht->crc32_good);
1466         pos += scnprintf(buf + pos, bufsz - pos,
1467                          fmt_table, "crc32_err:",
1468                          le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1469                          delta_ht->crc32_err, max_ht->crc32_err);
1470         pos += scnprintf(buf + pos, bufsz - pos,
1471                          fmt_table, "mh_format_err:",
1472                          le32_to_cpu(ht->mh_format_err),
1473                          accum_ht->mh_format_err,
1474                          delta_ht->mh_format_err, max_ht->mh_format_err);
1475         pos += scnprintf(buf + pos, bufsz - pos,
1476                          fmt_table, "agg_crc32_good:",
1477                          le32_to_cpu(ht->agg_crc32_good),
1478                          accum_ht->agg_crc32_good,
1479                          delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1480         pos += scnprintf(buf + pos, bufsz - pos,
1481                          fmt_table, "agg_mpdu_cnt:",
1482                          le32_to_cpu(ht->agg_mpdu_cnt),
1483                          accum_ht->agg_mpdu_cnt,
1484                          delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1485         pos += scnprintf(buf + pos, bufsz - pos,
1486                          fmt_table, "agg_cnt:",
1487                          le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1488                          delta_ht->agg_cnt, max_ht->agg_cnt);
1489         pos += scnprintf(buf + pos, bufsz - pos,
1490                          fmt_table, "unsupport_mcs:",
1491                          le32_to_cpu(ht->unsupport_mcs),
1492                          accum_ht->unsupport_mcs,
1493                          delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1494
1495         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1496         kfree(buf);
1497         return ret;
1498 }
1499
1500 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1501                                         char __user *user_buf,
1502                                         size_t count, loff_t *ppos)
1503 {
1504         struct iwl_priv *priv = file->private_data;
1505         int pos = 0;
1506         char *buf;
1507         int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1508         ssize_t ret;
1509         struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1510
1511         if (!iwl_is_alive(priv))
1512                 return -EAGAIN;
1513
1514         buf = kzalloc(bufsz, GFP_KERNEL);
1515         if (!buf) {
1516                 IWL_ERR(priv, "Can not allocate Buffer\n");
1517                 return -ENOMEM;
1518         }
1519
1520         /* the statistic information display here is based on
1521          * the last statistics notification from uCode
1522          * might not reflect the current uCode activity
1523          */
1524         tx = &priv->statistics.tx;
1525         accum_tx = &priv->accum_stats.tx;
1526         delta_tx = &priv->delta_stats.tx;
1527         max_tx = &priv->max_delta_stats.tx;
1528
1529         pos += iwl_statistics_flag(priv, buf, bufsz);
1530         pos += scnprintf(buf + pos, bufsz - pos,
1531                          fmt_header, "Statistics_Tx:");
1532         pos += scnprintf(buf + pos, bufsz - pos,
1533                          fmt_table, "preamble:",
1534                          le32_to_cpu(tx->preamble_cnt),
1535                          accum_tx->preamble_cnt,
1536                          delta_tx->preamble_cnt, max_tx->preamble_cnt);
1537         pos += scnprintf(buf + pos, bufsz - pos,
1538                          fmt_table, "rx_detected_cnt:",
1539                          le32_to_cpu(tx->rx_detected_cnt),
1540                          accum_tx->rx_detected_cnt,
1541                          delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1542         pos += scnprintf(buf + pos, bufsz - pos,
1543                          fmt_table, "bt_prio_defer_cnt:",
1544                          le32_to_cpu(tx->bt_prio_defer_cnt),
1545                          accum_tx->bt_prio_defer_cnt,
1546                          delta_tx->bt_prio_defer_cnt,
1547                          max_tx->bt_prio_defer_cnt);
1548         pos += scnprintf(buf + pos, bufsz - pos,
1549                          fmt_table, "bt_prio_kill_cnt:",
1550                          le32_to_cpu(tx->bt_prio_kill_cnt),
1551                          accum_tx->bt_prio_kill_cnt,
1552                          delta_tx->bt_prio_kill_cnt,
1553                          max_tx->bt_prio_kill_cnt);
1554         pos += scnprintf(buf + pos, bufsz - pos,
1555                          fmt_table, "few_bytes_cnt:",
1556                          le32_to_cpu(tx->few_bytes_cnt),
1557                          accum_tx->few_bytes_cnt,
1558                          delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1559         pos += scnprintf(buf + pos, bufsz - pos,
1560                          fmt_table, "cts_timeout:",
1561                          le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1562                          delta_tx->cts_timeout, max_tx->cts_timeout);
1563         pos += scnprintf(buf + pos, bufsz - pos,
1564                          fmt_table, "ack_timeout:",
1565                          le32_to_cpu(tx->ack_timeout),
1566                          accum_tx->ack_timeout,
1567                          delta_tx->ack_timeout, max_tx->ack_timeout);
1568         pos += scnprintf(buf + pos, bufsz - pos,
1569                          fmt_table, "expected_ack_cnt:",
1570                          le32_to_cpu(tx->expected_ack_cnt),
1571                          accum_tx->expected_ack_cnt,
1572                          delta_tx->expected_ack_cnt,
1573                          max_tx->expected_ack_cnt);
1574         pos += scnprintf(buf + pos, bufsz - pos,
1575                          fmt_table, "actual_ack_cnt:",
1576                          le32_to_cpu(tx->actual_ack_cnt),
1577                          accum_tx->actual_ack_cnt,
1578                          delta_tx->actual_ack_cnt,
1579                          max_tx->actual_ack_cnt);
1580         pos += scnprintf(buf + pos, bufsz - pos,
1581                          fmt_table, "dump_msdu_cnt:",
1582                          le32_to_cpu(tx->dump_msdu_cnt),
1583                          accum_tx->dump_msdu_cnt,
1584                          delta_tx->dump_msdu_cnt,
1585                          max_tx->dump_msdu_cnt);
1586         pos += scnprintf(buf + pos, bufsz - pos,
1587                          fmt_table, "abort_nxt_frame_mismatch:",
1588                          le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1589                          accum_tx->burst_abort_next_frame_mismatch_cnt,
1590                          delta_tx->burst_abort_next_frame_mismatch_cnt,
1591                          max_tx->burst_abort_next_frame_mismatch_cnt);
1592         pos += scnprintf(buf + pos, bufsz - pos,
1593                          fmt_table, "abort_missing_nxt_frame:",
1594                          le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1595                          accum_tx->burst_abort_missing_next_frame_cnt,
1596                          delta_tx->burst_abort_missing_next_frame_cnt,
1597                          max_tx->burst_abort_missing_next_frame_cnt);
1598         pos += scnprintf(buf + pos, bufsz - pos,
1599                          fmt_table, "cts_timeout_collision:",
1600                          le32_to_cpu(tx->cts_timeout_collision),
1601                          accum_tx->cts_timeout_collision,
1602                          delta_tx->cts_timeout_collision,
1603                          max_tx->cts_timeout_collision);
1604         pos += scnprintf(buf + pos, bufsz - pos,
1605                          fmt_table, "ack_ba_timeout_collision:",
1606                          le32_to_cpu(tx->ack_or_ba_timeout_collision),
1607                          accum_tx->ack_or_ba_timeout_collision,
1608                          delta_tx->ack_or_ba_timeout_collision,
1609                          max_tx->ack_or_ba_timeout_collision);
1610         pos += scnprintf(buf + pos, bufsz - pos,
1611                          fmt_table, "agg ba_timeout:",
1612                          le32_to_cpu(tx->agg.ba_timeout),
1613                          accum_tx->agg.ba_timeout,
1614                          delta_tx->agg.ba_timeout,
1615                          max_tx->agg.ba_timeout);
1616         pos += scnprintf(buf + pos, bufsz - pos,
1617                          fmt_table, "agg ba_resched_frames:",
1618                          le32_to_cpu(tx->agg.ba_reschedule_frames),
1619                          accum_tx->agg.ba_reschedule_frames,
1620                          delta_tx->agg.ba_reschedule_frames,
1621                          max_tx->agg.ba_reschedule_frames);
1622         pos += scnprintf(buf + pos, bufsz - pos,
1623                          fmt_table, "agg scd_query_agg_frame:",
1624                          le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1625                          accum_tx->agg.scd_query_agg_frame_cnt,
1626                          delta_tx->agg.scd_query_agg_frame_cnt,
1627                          max_tx->agg.scd_query_agg_frame_cnt);
1628         pos += scnprintf(buf + pos, bufsz - pos,
1629                          fmt_table, "agg scd_query_no_agg:",
1630                          le32_to_cpu(tx->agg.scd_query_no_agg),
1631                          accum_tx->agg.scd_query_no_agg,
1632                          delta_tx->agg.scd_query_no_agg,
1633                          max_tx->agg.scd_query_no_agg);
1634         pos += scnprintf(buf + pos, bufsz - pos,
1635                          fmt_table, "agg scd_query_agg:",
1636                          le32_to_cpu(tx->agg.scd_query_agg),
1637                          accum_tx->agg.scd_query_agg,
1638                          delta_tx->agg.scd_query_agg,
1639                          max_tx->agg.scd_query_agg);
1640         pos += scnprintf(buf + pos, bufsz - pos,
1641                          fmt_table, "agg scd_query_mismatch:",
1642                          le32_to_cpu(tx->agg.scd_query_mismatch),
1643                          accum_tx->agg.scd_query_mismatch,
1644                          delta_tx->agg.scd_query_mismatch,
1645                          max_tx->agg.scd_query_mismatch);
1646         pos += scnprintf(buf + pos, bufsz - pos,
1647                          fmt_table, "agg frame_not_ready:",
1648                          le32_to_cpu(tx->agg.frame_not_ready),
1649                          accum_tx->agg.frame_not_ready,
1650                          delta_tx->agg.frame_not_ready,
1651                          max_tx->agg.frame_not_ready);
1652         pos += scnprintf(buf + pos, bufsz - pos,
1653                          fmt_table, "agg underrun:",
1654                          le32_to_cpu(tx->agg.underrun),
1655                          accum_tx->agg.underrun,
1656                          delta_tx->agg.underrun, max_tx->agg.underrun);
1657         pos += scnprintf(buf + pos, bufsz - pos,
1658                          fmt_table, "agg bt_prio_kill:",
1659                          le32_to_cpu(tx->agg.bt_prio_kill),
1660                          accum_tx->agg.bt_prio_kill,
1661                          delta_tx->agg.bt_prio_kill,
1662                          max_tx->agg.bt_prio_kill);
1663         pos += scnprintf(buf + pos, bufsz - pos,
1664                          fmt_table, "agg rx_ba_rsp_cnt:",
1665                          le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1666                          accum_tx->agg.rx_ba_rsp_cnt,
1667                          delta_tx->agg.rx_ba_rsp_cnt,
1668                          max_tx->agg.rx_ba_rsp_cnt);
1669
1670         if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
1671                 pos += scnprintf(buf + pos, bufsz - pos,
1672                         "tx power: (1/2 dB step)\n");
1673                 if ((priv->cfg->valid_tx_ant & ANT_A) && tx->tx_power.ant_a)
1674                         pos += scnprintf(buf + pos, bufsz - pos,
1675                                         fmt_hex, "antenna A:",
1676                                         tx->tx_power.ant_a);
1677                 if ((priv->cfg->valid_tx_ant & ANT_B) && tx->tx_power.ant_b)
1678                         pos += scnprintf(buf + pos, bufsz - pos,
1679                                         fmt_hex, "antenna B:",
1680                                         tx->tx_power.ant_b);
1681                 if ((priv->cfg->valid_tx_ant & ANT_C) && tx->tx_power.ant_c)
1682                         pos += scnprintf(buf + pos, bufsz - pos,
1683                                         fmt_hex, "antenna C:",
1684                                         tx->tx_power.ant_c);
1685         }
1686         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1687         kfree(buf);
1688         return ret;
1689 }
1690
1691 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1692                                         char __user *user_buf,
1693                                         size_t count, loff_t *ppos)
1694 {
1695         struct iwl_priv *priv = file->private_data;
1696         int pos = 0;
1697         char *buf;
1698         int bufsz = sizeof(struct statistics_general) * 10 + 300;
1699         ssize_t ret;
1700         struct statistics_general_common *general, *accum_general;
1701         struct statistics_general_common *delta_general, *max_general;
1702         struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1703         struct statistics_div *div, *accum_div, *delta_div, *max_div;
1704
1705         if (!iwl_is_alive(priv))
1706                 return -EAGAIN;
1707
1708         buf = kzalloc(bufsz, GFP_KERNEL);
1709         if (!buf) {
1710                 IWL_ERR(priv, "Can not allocate Buffer\n");
1711                 return -ENOMEM;
1712         }
1713
1714         /* the statistic information display here is based on
1715          * the last statistics notification from uCode
1716          * might not reflect the current uCode activity
1717          */
1718         general = &priv->statistics.common;
1719         dbg = &priv->statistics.common.dbg;
1720         div = &priv->statistics.common.div;
1721         accum_general = &priv->accum_stats.common;
1722         accum_dbg = &priv->accum_stats.common.dbg;
1723         accum_div = &priv->accum_stats.common.div;
1724         delta_general = &priv->delta_stats.common;
1725         max_general = &priv->max_delta_stats.common;
1726         delta_dbg = &priv->delta_stats.common.dbg;
1727         max_dbg = &priv->max_delta_stats.common.dbg;
1728         delta_div = &priv->delta_stats.common.div;
1729         max_div = &priv->max_delta_stats.common.div;
1730
1731         pos += iwl_statistics_flag(priv, buf, bufsz);
1732         pos += scnprintf(buf + pos, bufsz - pos,
1733                          fmt_header, "Statistics_General:");
1734         pos += scnprintf(buf + pos, bufsz - pos,
1735                          fmt_value, "temperature:",
1736                          le32_to_cpu(general->temperature));
1737         pos += scnprintf(buf + pos, bufsz - pos,
1738                          fmt_value, "temperature_m:",
1739                          le32_to_cpu(general->temperature_m));
1740         pos += scnprintf(buf + pos, bufsz - pos,
1741                          fmt_value, "ttl_timestamp:",
1742                          le32_to_cpu(general->ttl_timestamp));
1743         pos += scnprintf(buf + pos, bufsz - pos,
1744                          fmt_table, "burst_check:",
1745                          le32_to_cpu(dbg->burst_check),
1746                          accum_dbg->burst_check,
1747                          delta_dbg->burst_check, max_dbg->burst_check);
1748         pos += scnprintf(buf + pos, bufsz - pos,
1749                          fmt_table, "burst_count:",
1750                          le32_to_cpu(dbg->burst_count),
1751                          accum_dbg->burst_count,
1752                          delta_dbg->burst_count, max_dbg->burst_count);
1753         pos += scnprintf(buf + pos, bufsz - pos,
1754                          fmt_table, "wait_for_silence_timeout_count:",
1755                          le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
1756                          accum_dbg->wait_for_silence_timeout_cnt,
1757                          delta_dbg->wait_for_silence_timeout_cnt,
1758                          max_dbg->wait_for_silence_timeout_cnt);
1759         pos += scnprintf(buf + pos, bufsz - pos,
1760                          fmt_table, "sleep_time:",
1761                          le32_to_cpu(general->sleep_time),
1762                          accum_general->sleep_time,
1763                          delta_general->sleep_time, max_general->sleep_time);
1764         pos += scnprintf(buf + pos, bufsz - pos,
1765                          fmt_table, "slots_out:",
1766                          le32_to_cpu(general->slots_out),
1767                          accum_general->slots_out,
1768                          delta_general->slots_out, max_general->slots_out);
1769         pos += scnprintf(buf + pos, bufsz - pos,
1770                          fmt_table, "slots_idle:",
1771                          le32_to_cpu(general->slots_idle),
1772                          accum_general->slots_idle,
1773                          delta_general->slots_idle, max_general->slots_idle);
1774         pos += scnprintf(buf + pos, bufsz - pos,
1775                          fmt_table, "tx_on_a:",
1776                          le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1777                          delta_div->tx_on_a, max_div->tx_on_a);
1778         pos += scnprintf(buf + pos, bufsz - pos,
1779                          fmt_table, "tx_on_b:",
1780                          le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1781                          delta_div->tx_on_b, max_div->tx_on_b);
1782         pos += scnprintf(buf + pos, bufsz - pos,
1783                          fmt_table, "exec_time:",
1784                          le32_to_cpu(div->exec_time), accum_div->exec_time,
1785                          delta_div->exec_time, max_div->exec_time);
1786         pos += scnprintf(buf + pos, bufsz - pos,
1787                          fmt_table, "probe_time:",
1788                          le32_to_cpu(div->probe_time), accum_div->probe_time,
1789                          delta_div->probe_time, max_div->probe_time);
1790         pos += scnprintf(buf + pos, bufsz - pos,
1791                          fmt_table, "rx_enable_counter:",
1792                          le32_to_cpu(general->rx_enable_counter),
1793                          accum_general->rx_enable_counter,
1794                          delta_general->rx_enable_counter,
1795                          max_general->rx_enable_counter);
1796         pos += scnprintf(buf + pos, bufsz - pos,
1797                          fmt_table, "num_of_sos_states:",
1798                          le32_to_cpu(general->num_of_sos_states),
1799                          accum_general->num_of_sos_states,
1800                          delta_general->num_of_sos_states,
1801                          max_general->num_of_sos_states);
1802         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1803         kfree(buf);
1804         return ret;
1805 }
1806
1807 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1808                                         char __user *user_buf,
1809                                         size_t count, loff_t *ppos)
1810 {
1811         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1812         int pos = 0;
1813         char *buf;
1814         int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
1815         ssize_t ret;
1816         struct statistics_bt_activity *bt, *accum_bt;
1817
1818         if (!iwl_is_alive(priv))
1819                 return -EAGAIN;
1820
1821         if (!priv->bt_enable_flag)
1822                 return -EINVAL;
1823
1824         /* make request to uCode to retrieve statistics information */
1825         mutex_lock(&priv->mutex);
1826         ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
1827         mutex_unlock(&priv->mutex);
1828
1829         if (ret) {
1830                 IWL_ERR(priv,
1831                         "Error sending statistics request: %zd\n", ret);
1832                 return -EAGAIN;
1833         }
1834         buf = kzalloc(bufsz, GFP_KERNEL);
1835         if (!buf) {
1836                 IWL_ERR(priv, "Can not allocate Buffer\n");
1837                 return -ENOMEM;
1838         }
1839
1840         /*
1841          * the statistic information display here is based on
1842          * the last statistics notification from uCode
1843          * might not reflect the current uCode activity
1844          */
1845         bt = &priv->statistics.bt_activity;
1846         accum_bt = &priv->accum_stats.bt_activity;
1847
1848         pos += iwl_statistics_flag(priv, buf, bufsz);
1849         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
1850         pos += scnprintf(buf + pos, bufsz - pos,
1851                         "\t\t\tcurrent\t\t\taccumulative\n");
1852         pos += scnprintf(buf + pos, bufsz - pos,
1853                          "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1854                          le32_to_cpu(bt->hi_priority_tx_req_cnt),
1855                          accum_bt->hi_priority_tx_req_cnt);
1856         pos += scnprintf(buf + pos, bufsz - pos,
1857                          "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1858                          le32_to_cpu(bt->hi_priority_tx_denied_cnt),
1859                          accum_bt->hi_priority_tx_denied_cnt);
1860         pos += scnprintf(buf + pos, bufsz - pos,
1861                          "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1862                          le32_to_cpu(bt->lo_priority_tx_req_cnt),
1863                          accum_bt->lo_priority_tx_req_cnt);
1864         pos += scnprintf(buf + pos, bufsz - pos,
1865                          "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1866                          le32_to_cpu(bt->lo_priority_tx_denied_cnt),
1867                          accum_bt->lo_priority_tx_denied_cnt);
1868         pos += scnprintf(buf + pos, bufsz - pos,
1869                          "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1870                          le32_to_cpu(bt->hi_priority_rx_req_cnt),
1871                          accum_bt->hi_priority_rx_req_cnt);
1872         pos += scnprintf(buf + pos, bufsz - pos,
1873                          "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1874                          le32_to_cpu(bt->hi_priority_rx_denied_cnt),
1875                          accum_bt->hi_priority_rx_denied_cnt);
1876         pos += scnprintf(buf + pos, bufsz - pos,
1877                          "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1878                          le32_to_cpu(bt->lo_priority_rx_req_cnt),
1879                          accum_bt->lo_priority_rx_req_cnt);
1880         pos += scnprintf(buf + pos, bufsz - pos,
1881                          "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1882                          le32_to_cpu(bt->lo_priority_rx_denied_cnt),
1883                          accum_bt->lo_priority_rx_denied_cnt);
1884
1885         pos += scnprintf(buf + pos, bufsz - pos,
1886                          "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
1887                          le32_to_cpu(priv->statistics.num_bt_kills),
1888                          priv->statistics.accum_num_bt_kills);
1889
1890         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1891         kfree(buf);
1892         return ret;
1893 }
1894
1895 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1896                                         char __user *user_buf,
1897                                         size_t count, loff_t *ppos)
1898 {
1899         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1900         int pos = 0;
1901         char *buf;
1902         int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
1903                 (sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
1904         ssize_t ret;
1905
1906         if (!iwl_is_alive(priv))
1907                 return -EAGAIN;
1908
1909         buf = kzalloc(bufsz, GFP_KERNEL);
1910         if (!buf) {
1911                 IWL_ERR(priv, "Can not allocate Buffer\n");
1912                 return -ENOMEM;
1913         }
1914
1915         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
1916         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
1917                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1918                          priv->_agn.reply_tx_stats.pp_delay);
1919         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1920                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1921                          priv->_agn.reply_tx_stats.pp_few_bytes);
1922         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1923                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1924                          priv->_agn.reply_tx_stats.pp_bt_prio);
1925         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1926                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1927                          priv->_agn.reply_tx_stats.pp_quiet_period);
1928         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1929                          iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1930                          priv->_agn.reply_tx_stats.pp_calc_ttak);
1931         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1932                          iwl_get_tx_fail_reason(
1933                                 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1934                          priv->_agn.reply_tx_stats.int_crossed_retry);
1935         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1936                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1937                          priv->_agn.reply_tx_stats.short_limit);
1938         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1939                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1940                          priv->_agn.reply_tx_stats.long_limit);
1941         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1942                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1943                          priv->_agn.reply_tx_stats.fifo_underrun);
1944         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1945                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1946                          priv->_agn.reply_tx_stats.drain_flow);
1947         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1948                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1949                          priv->_agn.reply_tx_stats.rfkill_flush);
1950         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1951                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1952                          priv->_agn.reply_tx_stats.life_expire);
1953         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1954                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1955                          priv->_agn.reply_tx_stats.dest_ps);
1956         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1957                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1958                          priv->_agn.reply_tx_stats.host_abort);
1959         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1960                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1961                          priv->_agn.reply_tx_stats.pp_delay);
1962         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1963                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1964                          priv->_agn.reply_tx_stats.sta_invalid);
1965         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1966                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1967                          priv->_agn.reply_tx_stats.frag_drop);
1968         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1969                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1970                          priv->_agn.reply_tx_stats.tid_disable);
1971         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1972                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1973                          priv->_agn.reply_tx_stats.fifo_flush);
1974         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1975                          iwl_get_tx_fail_reason(
1976                                 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1977                          priv->_agn.reply_tx_stats.insuff_cf_poll);
1978         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1979                          iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1980                          priv->_agn.reply_tx_stats.fail_hw_drop);
1981         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1982                          iwl_get_tx_fail_reason(
1983                                 TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1984                          priv->_agn.reply_tx_stats.sta_color_mismatch);
1985         pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1986                          priv->_agn.reply_tx_stats.unknown);
1987
1988         pos += scnprintf(buf + pos, bufsz - pos,
1989                          "\nStatistics_Agg_TX_Error:\n");
1990
1991         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1992                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1993                          priv->_agn.reply_agg_tx_stats.underrun);
1994         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1995                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1996                          priv->_agn.reply_agg_tx_stats.bt_prio);
1997         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1998                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1999                          priv->_agn.reply_agg_tx_stats.few_bytes);
2000         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
2001                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
2002                          priv->_agn.reply_agg_tx_stats.abort);
2003         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
2004                          iwl_get_agg_tx_fail_reason(
2005                                 AGG_TX_STATE_LAST_SENT_TTL_MSK),
2006                          priv->_agn.reply_agg_tx_stats.last_sent_ttl);
2007         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
2008                          iwl_get_agg_tx_fail_reason(
2009                                 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK),
2010                          priv->_agn.reply_agg_tx_stats.last_sent_try);
2011         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
2012                          iwl_get_agg_tx_fail_reason(
2013                                 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
2014                          priv->_agn.reply_agg_tx_stats.last_sent_bt_kill);
2015         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
2016                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
2017                          priv->_agn.reply_agg_tx_stats.scd_query);
2018         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
2019                          iwl_get_agg_tx_fail_reason(
2020                                 AGG_TX_STATE_TEST_BAD_CRC32_MSK),
2021                          priv->_agn.reply_agg_tx_stats.bad_crc32);
2022         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
2023                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
2024                          priv->_agn.reply_agg_tx_stats.response);
2025         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
2026                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
2027                          priv->_agn.reply_agg_tx_stats.dump_tx);
2028         pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
2029                          iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
2030                          priv->_agn.reply_agg_tx_stats.delay_tx);
2031         pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
2032                          priv->_agn.reply_agg_tx_stats.unknown);
2033
2034         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2035         kfree(buf);
2036         return ret;
2037 }
2038
2039 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
2040                                         char __user *user_buf,
2041                                         size_t count, loff_t *ppos) {
2042
2043         struct iwl_priv *priv = file->private_data;
2044         int pos = 0;
2045         int cnt = 0;
2046         char *buf;
2047         int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
2048         ssize_t ret;
2049         struct iwl_sensitivity_data *data;
2050
2051         data = &priv->sensitivity_data;
2052         buf = kzalloc(bufsz, GFP_KERNEL);
2053         if (!buf) {
2054                 IWL_ERR(priv, "Can not allocate Buffer\n");
2055                 return -ENOMEM;
2056         }
2057
2058         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
2059                         data->auto_corr_ofdm);
2060         pos += scnprintf(buf + pos, bufsz - pos,
2061                         "auto_corr_ofdm_mrc:\t\t %u\n",
2062                         data->auto_corr_ofdm_mrc);
2063         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
2064                         data->auto_corr_ofdm_x1);
2065         pos += scnprintf(buf + pos, bufsz - pos,
2066                         "auto_corr_ofdm_mrc_x1:\t\t %u\n",
2067                         data->auto_corr_ofdm_mrc_x1);
2068         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
2069                         data->auto_corr_cck);
2070         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
2071                         data->auto_corr_cck_mrc);
2072         pos += scnprintf(buf + pos, bufsz - pos,
2073                         "last_bad_plcp_cnt_ofdm:\t\t %u\n",
2074                         data->last_bad_plcp_cnt_ofdm);
2075         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
2076                         data->last_fa_cnt_ofdm);
2077         pos += scnprintf(buf + pos, bufsz - pos,
2078                         "last_bad_plcp_cnt_cck:\t\t %u\n",
2079                         data->last_bad_plcp_cnt_cck);
2080         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
2081                         data->last_fa_cnt_cck);
2082         pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
2083                         data->nrg_curr_state);
2084         pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
2085                         data->nrg_prev_state);
2086         pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
2087         for (cnt = 0; cnt < 10; cnt++) {
2088                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
2089                                 data->nrg_value[cnt]);
2090         }
2091         pos += scnprintf(buf + pos, bufsz - pos, "\n");
2092         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
2093         for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
2094                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
2095                                 data->nrg_silence_rssi[cnt]);
2096         }
2097         pos += scnprintf(buf + pos, bufsz - pos, "\n");
2098         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
2099                         data->nrg_silence_ref);
2100         pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
2101                         data->nrg_energy_idx);
2102         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
2103                         data->nrg_silence_idx);
2104         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
2105                         data->nrg_th_cck);
2106         pos += scnprintf(buf + pos, bufsz - pos,
2107                         "nrg_auto_corr_silence_diff:\t %u\n",
2108                         data->nrg_auto_corr_silence_diff);
2109         pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
2110                         data->num_in_cck_no_fa);
2111         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
2112                         data->nrg_th_ofdm);
2113
2114         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2115         kfree(buf);
2116         return ret;
2117 }
2118
2119
2120 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
2121                                         char __user *user_buf,
2122                                         size_t count, loff_t *ppos) {
2123
2124         struct iwl_priv *priv = file->private_data;
2125         int pos = 0;
2126         int cnt = 0;
2127         char *buf;
2128         int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
2129         ssize_t ret;
2130         struct iwl_chain_noise_data *data;
2131
2132         data = &priv->chain_noise_data;
2133         buf = kzalloc(bufsz, GFP_KERNEL);
2134         if (!buf) {
2135                 IWL_ERR(priv, "Can not allocate Buffer\n");
2136                 return -ENOMEM;
2137         }
2138
2139         pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
2140                         data->active_chains);
2141         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
2142                         data->chain_noise_a);
2143         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
2144                         data->chain_noise_b);
2145         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
2146                         data->chain_noise_c);
2147         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
2148                         data->chain_signal_a);
2149         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
2150                         data->chain_signal_b);
2151         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
2152                         data->chain_signal_c);
2153         pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
2154                         data->beacon_count);
2155
2156         pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
2157         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
2158                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
2159                                 data->disconn_array[cnt]);
2160         }
2161         pos += scnprintf(buf + pos, bufsz - pos, "\n");
2162         pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
2163         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
2164                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
2165                                 data->delta_gain_code[cnt]);
2166         }
2167         pos += scnprintf(buf + pos, bufsz - pos, "\n");
2168         pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
2169                         data->radio_write);
2170         pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
2171                         data->state);
2172
2173         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2174         kfree(buf);
2175         return ret;
2176 }
2177
2178 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
2179                                                     char __user *user_buf,
2180                                                     size_t count, loff_t *ppos)
2181 {
2182         struct iwl_priv *priv = file->private_data;
2183         char buf[60];
2184         int pos = 0;
2185         const size_t bufsz = sizeof(buf);
2186         u32 pwrsave_status;
2187
2188         pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
2189                         CSR_GP_REG_POWER_SAVE_STATUS_MSK;
2190
2191         pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
2192         pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
2193                 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
2194                 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
2195                 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
2196                 "error");
2197
2198         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2199 }
2200
2201 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
2202                                          const char __user *user_buf,
2203                                          size_t count, loff_t *ppos)
2204 {
2205         struct iwl_priv *priv = file->private_data;
2206         char buf[8];
2207         int buf_size;
2208         int clear;
2209
2210         memset(buf, 0, sizeof(buf));
2211         buf_size = min(count, sizeof(buf) -  1);
2212         if (copy_from_user(buf, user_buf, buf_size))
2213                 return -EFAULT;
2214         if (sscanf(buf, "%d", &clear) != 1)
2215                 return -EFAULT;
2216
2217         /* make request to uCode to retrieve statistics information */
2218         mutex_lock(&priv->mutex);
2219         iwl_send_statistics_request(priv, CMD_SYNC, true);
2220         mutex_unlock(&priv->mutex);
2221
2222         return count;
2223 }
2224
2225 static ssize_t iwl_dbgfs_csr_write(struct file *file,
2226                                          const char __user *user_buf,
2227                                          size_t count, loff_t *ppos)
2228 {
2229         struct iwl_priv *priv = file->private_data;
2230         char buf[8];
2231         int buf_size;
2232         int csr;
2233
2234         memset(buf, 0, sizeof(buf));
2235         buf_size = min(count, sizeof(buf) -  1);
2236         if (copy_from_user(buf, user_buf, buf_size))
2237                 return -EFAULT;
2238         if (sscanf(buf, "%d", &csr) != 1)
2239                 return -EFAULT;
2240
2241         iwl_dump_csr(priv);
2242
2243         return count;
2244 }
2245
2246 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
2247                                         char __user *user_buf,
2248                                         size_t count, loff_t *ppos) {
2249
2250         struct iwl_priv *priv = file->private_data;
2251         int pos = 0;
2252         char buf[128];
2253         const size_t bufsz = sizeof(buf);
2254
2255         pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
2256                         priv->event_log.ucode_trace ? "On" : "Off");
2257         pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
2258                         priv->event_log.non_wraps_count);
2259         pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
2260                         priv->event_log.wraps_once_count);
2261         pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
2262                         priv->event_log.wraps_more_count);
2263
2264         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2265 }
2266
2267 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
2268                                          const char __user *user_buf,
2269                                          size_t count, loff_t *ppos)
2270 {
2271         struct iwl_priv *priv = file->private_data;
2272         char buf[8];
2273         int buf_size;
2274         int trace;
2275
2276         memset(buf, 0, sizeof(buf));
2277         buf_size = min(count, sizeof(buf) -  1);
2278         if (copy_from_user(buf, user_buf, buf_size))
2279                 return -EFAULT;
2280         if (sscanf(buf, "%d", &trace) != 1)
2281                 return -EFAULT;
2282
2283         if (trace) {
2284                 priv->event_log.ucode_trace = true;
2285                 /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
2286                 mod_timer(&priv->ucode_trace,
2287                         jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
2288         } else {
2289                 priv->event_log.ucode_trace = false;
2290                 del_timer_sync(&priv->ucode_trace);
2291         }
2292
2293         return count;
2294 }
2295
2296 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
2297                                          char __user *user_buf,
2298                                          size_t count, loff_t *ppos) {
2299
2300         struct iwl_priv *priv = file->private_data;
2301         int len = 0;
2302         char buf[20];
2303
2304         len = sprintf(buf, "0x%04X\n",
2305                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
2306         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2307 }
2308
2309 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
2310                                                 char __user *user_buf,
2311                                                 size_t count, loff_t *ppos) {
2312
2313         struct iwl_priv *priv = file->private_data;
2314         int len = 0;
2315         char buf[20];
2316
2317         len = sprintf(buf, "0x%04X\n",
2318                 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
2319         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2320 }
2321
2322 static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
2323                                          char __user *user_buf,
2324                                          size_t count, loff_t *ppos)
2325 {
2326         struct iwl_priv *priv = file->private_data;
2327         char *buf;
2328         int pos = 0;
2329         ssize_t ret = -EFAULT;
2330
2331         ret = pos = iwl_dump_fh(priv, &buf, true);
2332         if (buf) {
2333                 ret = simple_read_from_buffer(user_buf,
2334                                               count, ppos, buf, pos);
2335                 kfree(buf);
2336         }
2337
2338         return ret;
2339 }
2340
2341 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
2342                                         char __user *user_buf,
2343                                         size_t count, loff_t *ppos) {
2344
2345         struct iwl_priv *priv = file->private_data;
2346         int pos = 0;
2347         char buf[12];
2348         const size_t bufsz = sizeof(buf);
2349
2350         pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
2351                         priv->missed_beacon_threshold);
2352
2353         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2354 }
2355
2356 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
2357                                          const char __user *user_buf,
2358                                          size_t count, loff_t *ppos)
2359 {
2360         struct iwl_priv *priv = file->private_data;
2361         char buf[8];
2362         int buf_size;
2363         int missed;
2364
2365         memset(buf, 0, sizeof(buf));
2366         buf_size = min(count, sizeof(buf) -  1);
2367         if (copy_from_user(buf, user_buf, buf_size))
2368                 return -EFAULT;
2369         if (sscanf(buf, "%d", &missed) != 1)
2370                 return -EINVAL;
2371
2372         if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
2373             missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
2374                 priv->missed_beacon_threshold =
2375                         IWL_MISSED_BEACON_THRESHOLD_DEF;
2376         else
2377                 priv->missed_beacon_threshold = missed;
2378
2379         return count;
2380 }
2381
2382 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
2383                                         char __user *user_buf,
2384                                         size_t count, loff_t *ppos) {
2385
2386         struct iwl_priv *priv = file->private_data;
2387         int pos = 0;
2388         char buf[12];
2389         const size_t bufsz = sizeof(buf);
2390
2391         pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
2392                         priv->cfg->base_params->plcp_delta_threshold);
2393
2394         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2395 }
2396
2397 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
2398                                         const char __user *user_buf,
2399                                         size_t count, loff_t *ppos) {
2400
2401         struct iwl_priv *priv = file->private_data;
2402         char buf[8];
2403         int buf_size;
2404         int plcp;
2405
2406         memset(buf, 0, sizeof(buf));
2407         buf_size = min(count, sizeof(buf) -  1);
2408         if (copy_from_user(buf, user_buf, buf_size))
2409                 return -EFAULT;
2410         if (sscanf(buf, "%d", &plcp) != 1)
2411                 return -EINVAL;
2412         if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
2413                 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
2414                 priv->cfg->base_params->plcp_delta_threshold =
2415                         IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
2416         else
2417                 priv->cfg->base_params->plcp_delta_threshold = plcp;
2418         return count;
2419 }
2420
2421 static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
2422                                         char __user *user_buf,
2423                                         size_t count, loff_t *ppos) {
2424
2425         struct iwl_priv *priv = file->private_data;
2426         int i, pos = 0;
2427         char buf[300];
2428         const size_t bufsz = sizeof(buf);
2429         struct iwl_force_reset *force_reset;
2430
2431         for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
2432                 force_reset = &priv->force_reset[i];
2433                 pos += scnprintf(buf + pos, bufsz - pos,
2434                                 "Force reset method %d\n", i);
2435                 pos += scnprintf(buf + pos, bufsz - pos,
2436                                 "\tnumber of reset request: %d\n",
2437                                 force_reset->reset_request_count);
2438                 pos += scnprintf(buf + pos, bufsz - pos,
2439                                 "\tnumber of reset request success: %d\n",
2440                                 force_reset->reset_success_count);
2441                 pos += scnprintf(buf + pos, bufsz - pos,
2442                                 "\tnumber of reset request reject: %d\n",
2443                                 force_reset->reset_reject_count);
2444                 pos += scnprintf(buf + pos, bufsz - pos,
2445                                 "\treset duration: %lu\n",
2446                                 force_reset->reset_duration);
2447         }
2448         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2449 }
2450
2451 static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
2452                                         const char __user *user_buf,
2453                                         size_t count, loff_t *ppos) {
2454
2455         struct iwl_priv *priv = file->private_data;
2456         char buf[8];
2457         int buf_size;
2458         int reset, ret;
2459
2460         memset(buf, 0, sizeof(buf));
2461         buf_size = min(count, sizeof(buf) -  1);
2462         if (copy_from_user(buf, user_buf, buf_size))
2463                 return -EFAULT;
2464         if (sscanf(buf, "%d", &reset) != 1)
2465                 return -EINVAL;
2466         switch (reset) {
2467         case IWL_RF_RESET:
2468         case IWL_FW_RESET:
2469                 ret = iwl_force_reset(priv, reset, true);
2470                 break;
2471         default:
2472                 return -EINVAL;
2473         }
2474         return ret ? ret : count;
2475 }
2476
2477 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
2478                                         const char __user *user_buf,
2479                                         size_t count, loff_t *ppos) {
2480
2481         struct iwl_priv *priv = file->private_data;
2482         char buf[8];
2483         int buf_size;
2484         int flush;
2485
2486         memset(buf, 0, sizeof(buf));
2487         buf_size = min(count, sizeof(buf) -  1);
2488         if (copy_from_user(buf, user_buf, buf_size))
2489                 return -EFAULT;
2490         if (sscanf(buf, "%d", &flush) != 1)
2491                 return -EINVAL;
2492
2493         if (iwl_is_rfkill(priv))
2494                 return -EFAULT;
2495
2496         iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
2497
2498         return count;
2499 }
2500
2501 static ssize_t iwl_dbgfs_wd_timeout_write(struct file *file,
2502                                         const char __user *user_buf,
2503                                         size_t count, loff_t *ppos) {
2504
2505         struct iwl_priv *priv = file->private_data;
2506         char buf[8];
2507         int buf_size;
2508         int timeout;
2509
2510         memset(buf, 0, sizeof(buf));
2511         buf_size = min(count, sizeof(buf) -  1);
2512         if (copy_from_user(buf, user_buf, buf_size))
2513                 return -EFAULT;
2514         if (sscanf(buf, "%d", &timeout) != 1)
2515                 return -EINVAL;
2516         if (timeout < 0 || timeout > IWL_MAX_WD_TIMEOUT)
2517                 timeout = IWL_DEF_WD_TIMEOUT;
2518
2519         priv->cfg->base_params->wd_timeout = timeout;
2520         iwl_setup_watchdog(priv);
2521         return count;
2522 }
2523
2524 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
2525                                         char __user *user_buf,
2526                                         size_t count, loff_t *ppos) {
2527
2528         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2529         int pos = 0;
2530         char buf[200];
2531         const size_t bufsz = sizeof(buf);
2532
2533         if (!priv->bt_enable_flag) {
2534                 pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2535                 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2536         }
2537         pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
2538                 priv->bt_enable_flag);
2539         pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
2540                 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
2541         pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
2542                          "last traffic notif: %d\n",
2543                 priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2544         pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2545                          "kill_ack_mask: %x, kill_cts_mask: %x\n",
2546                 priv->bt_ch_announce, priv->kill_ack_mask,
2547                 priv->kill_cts_mask);
2548
2549         pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
2550         switch (priv->bt_traffic_load) {
2551         case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
2552                 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
2553                 break;
2554         case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
2555                 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
2556                 break;
2557         case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
2558                 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
2559                 break;
2560         case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
2561         default:
2562                 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
2563                 break;
2564         }
2565
2566         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2567 }
2568
2569 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
2570                                         char __user *user_buf,
2571                                         size_t count, loff_t *ppos)
2572 {
2573         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2574
2575         int pos = 0;
2576         char buf[40];
2577         const size_t bufsz = sizeof(buf);
2578
2579         if (priv->cfg->ht_params)
2580                 pos += scnprintf(buf + pos, bufsz - pos,
2581                          "use %s for aggregation\n",
2582                          (priv->cfg->ht_params->use_rts_for_aggregation) ?
2583                                 "rts/cts" : "cts-to-self");
2584         else
2585                 pos += scnprintf(buf + pos, bufsz - pos, "N/A");
2586
2587         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2588 }
2589
2590 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
2591                                         const char __user *user_buf,
2592                                         size_t count, loff_t *ppos) {
2593
2594         struct iwl_priv *priv = file->private_data;
2595         char buf[8];
2596         int buf_size;
2597         int rts;
2598
2599         if (!priv->cfg->ht_params)
2600                 return -EINVAL;
2601
2602         memset(buf, 0, sizeof(buf));
2603         buf_size = min(count, sizeof(buf) -  1);
2604         if (copy_from_user(buf, user_buf, buf_size))
2605                 return -EFAULT;
2606         if (sscanf(buf, "%d", &rts) != 1)
2607                 return -EINVAL;
2608         if (rts)
2609                 priv->cfg->ht_params->use_rts_for_aggregation = true;
2610         else
2611                 priv->cfg->ht_params->use_rts_for_aggregation = false;
2612         return count;
2613 }
2614
2615 DEBUGFS_READ_FILE_OPS(rx_statistics);
2616 DEBUGFS_READ_FILE_OPS(tx_statistics);
2617 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
2618 DEBUGFS_READ_FILE_OPS(rx_queue);
2619 DEBUGFS_READ_FILE_OPS(tx_queue);
2620 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2621 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2622 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2623 DEBUGFS_READ_FILE_OPS(sensitivity);
2624 DEBUGFS_READ_FILE_OPS(chain_noise);
2625 DEBUGFS_READ_FILE_OPS(power_save_status);
2626 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2627 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
2628 DEBUGFS_WRITE_FILE_OPS(csr);
2629 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2630 DEBUGFS_READ_FILE_OPS(fh_reg);
2631 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2632 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2633 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
2634 DEBUGFS_READ_FILE_OPS(rxon_flags);
2635 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2636 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2637 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2638 DEBUGFS_WRITE_FILE_OPS(wd_timeout);
2639 DEBUGFS_READ_FILE_OPS(bt_traffic);
2640 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2641 DEBUGFS_READ_FILE_OPS(reply_tx_error);
2642
2643 /*
2644  * Create the debugfs files and directories
2645  *
2646  */
2647 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
2648 {
2649         struct dentry *phyd = priv->hw->wiphy->debugfsdir;
2650         struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
2651
2652         dir_drv = debugfs_create_dir(name, phyd);
2653         if (!dir_drv)
2654                 return -ENOMEM;
2655
2656         priv->debugfs_dir = dir_drv;
2657
2658         dir_data = debugfs_create_dir("data", dir_drv);
2659         if (!dir_data)
2660                 goto err;
2661         dir_rf = debugfs_create_dir("rf", dir_drv);
2662         if (!dir_rf)
2663                 goto err;
2664         dir_debug = debugfs_create_dir("debug", dir_drv);
2665         if (!dir_debug)
2666                 goto err;
2667
2668         DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
2669         DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
2670         DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR);
2671         DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
2672         DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
2673         DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
2674         DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
2675         DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
2676         DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
2677         DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
2678         DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
2679         DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
2680         DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
2681         DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
2682         DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
2683         DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
2684         DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
2685         DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
2686         DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
2687         DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
2688         DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
2689         DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
2690         DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
2691         DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
2692         DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
2693         DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
2694         DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
2695         DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
2696         DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
2697         DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
2698
2699         DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
2700         DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
2701         DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
2702         DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
2703         DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
2704         DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
2705         DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
2706         DEBUGFS_ADD_FILE(wd_timeout, dir_debug, S_IWUSR);
2707         if (iwl_advanced_bt_coexist(priv))
2708                 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
2709         DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
2710                          &priv->disable_sens_cal);
2711         DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
2712                          &priv->disable_chain_noise_cal);
2713         return 0;
2714
2715 err:
2716         IWL_ERR(priv, "Can't create the debugfs directory\n");
2717         iwl_dbgfs_unregister(priv);
2718         return -ENOMEM;
2719 }
2720
2721 /**
2722  * Remove the debugfs files and directories
2723  *
2724  */
2725 void iwl_dbgfs_unregister(struct iwl_priv *priv)
2726 {
2727         if (!priv->debugfs_dir)
2728                 return;
2729
2730         debugfs_remove_recursive(priv->debugfs_dir);
2731         priv->debugfs_dir = NULL;
2732 }
2733
2734
2735