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

   1 /******************************************************************************
   2  *
   3  * GPL LICENSE SUMMARY
   4  *
   5  * Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of version 2 of the GNU General Public License as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  19  * USA
  20  *
  21  * The full GNU General Public License is included in this distribution
  22  * in the file called LICENSE.GPL.
  23  *
  24  * Contact Information:
  25  *  Intel Linux Wireless <ilw@linux.intel.com>
  26  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  27  *****************************************************************************/
  28
  29 #include <linux/kernel.h>
  30 #include <linux/module.h>
  31 #include <linux/debugfs.h>
  32
  33 #include <linux/ieee80211.h>
  34 #include <net/mac80211.h>
  35
  36
  37 #include "iwl-dev.h"
  38 #include "iwl-debug.h"
  39 #include "iwl-core.h"
  40 #include "iwl-io.h"
  41 #include "iwl-calib.h"
  42
  43 /* create and remove of files */
  44 #define DEBUGFS_ADD_FILE(name, parent, mode) do {                       \
  45         if (!debugfs_create_file(#name, mode, parent, priv,             \
  46                                  &iwl_dbgfs_##name##_ops))              \
  47                 goto err;                                               \
  48 } while (0)
  49
  50 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do {                        \
  51         struct dentry *__tmp;                                           \
  52         __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR,           \
  53                                     parent, ptr);                       \
  54         if (IS_ERR(__tmp) || !__tmp)                                    \
  55                 goto err;                                               \
  56 } while (0)
  57
  58 #define DEBUGFS_ADD_X32(name, parent, ptr) do {                         \
  59         struct dentry *__tmp;                                           \
  60         __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR,            \
  61                                    parent, ptr);                        \
  62         if (IS_ERR(__tmp) || !__tmp)                                    \
  63                 goto err;                                               \
  64 } while (0)
  65
  66 /* file operation */
  67 #define DEBUGFS_READ_FUNC(name)                                         \
  68 static ssize_t iwl_dbgfs_##name##_read(struct file *file,               \
  69                                         char __user *user_buf,          \
  70                                         size_t count, loff_t *ppos);
  71
  72 #define DEBUGFS_WRITE_FUNC(name)                                        \
  73 static ssize_t iwl_dbgfs_##name##_write(struct file *file,              \
  74                                         const char __user *user_buf,    \
  75                                         size_t count, loff_t *ppos);
  76
  77
  78 static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
  79 {
  80         file->private_data = inode->i_private;
  81         return 0;
  82 }
  83
  84 #define DEBUGFS_READ_FILE_OPS(name)                                     \
  85         DEBUGFS_READ_FUNC(name);                                        \
  86 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  87         .read = iwl_dbgfs_##name##_read,                                \
  88         .open = iwl_dbgfs_open_file_generic,                            \
  89 };
  90
  91 #define DEBUGFS_WRITE_FILE_OPS(name)                                    \
  92         DEBUGFS_WRITE_FUNC(name);                                       \
  93 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  94         .write = iwl_dbgfs_##name##_write,                              \
  95         .open = iwl_dbgfs_open_file_generic,                            \
  96 };
  97
  98
  99 #define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
 100         DEBUGFS_READ_FUNC(name);                                        \
 101         DEBUGFS_WRITE_FUNC(name);                                       \
 102 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
 103         .write = iwl_dbgfs_##name##_write,                              \
 104         .read = iwl_dbgfs_##name##_read,                                \
 105         .open = iwl_dbgfs_open_file_generic,                            \
 106 };
 107
 108
 109 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
 110                                                 char __user *user_buf,
 111                                                 size_t count, loff_t *ppos) {
 112
 113         struct iwl_priv *priv = file->private_data;
 114         char *buf;
 115         int pos = 0;
 116
 117         int cnt;
 118         ssize_t ret;
 119         const size_t bufsz = 100 +
 120                 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
 121         buf = kzalloc(bufsz, GFP_KERNEL);
 122         if (!buf)
 123                 return -ENOMEM;
 124         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
 125         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
 126                 pos += scnprintf(buf + pos, bufsz - pos,
 127                                  "\t%25s\t\t: %u\n",
 128                                  get_mgmt_string(cnt),
 129                                  priv->tx_stats.mgmt[cnt]);
 130         }
 131         pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
 132         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
 133                 pos += scnprintf(buf + pos, bufsz - pos,
 134                                  "\t%25s\t\t: %u\n",
 135                                  get_ctrl_string(cnt),
 136                                  priv->tx_stats.ctrl[cnt]);
 137         }
 138         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
 139         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
 140                          priv->tx_stats.data_cnt);
 141         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
 142                          priv->tx_stats.data_bytes);
 143         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 144         kfree(buf);
 145         return ret;
 146 }
 147
 148 static ssize_t iwl_dbgfs_clear_traffic_statistics_write(struct file *file,
 149                                         const char __user *user_buf,
 150                                         size_t count, loff_t *ppos)
 151 {
 152         struct iwl_priv *priv = file->private_data;
 153         u32 clear_flag;
 154         char buf[8];
 155         int buf_size;
 156
 157         memset(buf, 0, sizeof(buf));
 158         buf_size = min(count, sizeof(buf) -  1);
 159         if (copy_from_user(buf, user_buf, buf_size))
 160                 return -EFAULT;
 161         if (sscanf(buf, "%x", &clear_flag) != 1)
 162                 return -EFAULT;
 163         iwl_clear_traffic_stats(priv);
 164
 165         return count;
 166 }
 167
 168 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
 169                                                 char __user *user_buf,
 170                                                 size_t count, loff_t *ppos) {
 171
 172         struct iwl_priv *priv = file->private_data;
 173         char *buf;
 174         int pos = 0;
 175         int cnt;
 176         ssize_t ret;
 177         const size_t bufsz = 100 +
 178                 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
 179         buf = kzalloc(bufsz, GFP_KERNEL);
 180         if (!buf)
 181                 return -ENOMEM;
 182
 183         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
 184         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
 185                 pos += scnprintf(buf + pos, bufsz - pos,
 186                                  "\t%25s\t\t: %u\n",
 187                                  get_mgmt_string(cnt),
 188                                  priv->rx_stats.mgmt[cnt]);
 189         }
 190         pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
 191         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
 192                 pos += scnprintf(buf + pos, bufsz - pos,
 193                                  "\t%25s\t\t: %u\n",
 194                                  get_ctrl_string(cnt),
 195                                  priv->rx_stats.ctrl[cnt]);
 196         }
 197         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
 198         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
 199                          priv->rx_stats.data_cnt);
 200         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
 201                          priv->rx_stats.data_bytes);
 202
 203         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 204         kfree(buf);
 205         return ret;
 206 }
 207
 208 #define BYTE1_MASK 0x000000ff;
 209 #define BYTE2_MASK 0x0000ffff;
 210 #define BYTE3_MASK 0x00ffffff;
 211 static ssize_t iwl_dbgfs_sram_read(struct file *file,
 212                                         char __user *user_buf,
 213                                         size_t count, loff_t *ppos)
 214 {
 215         u32 val;
 216         char *buf;
 217         ssize_t ret;
 218         int i;
 219         int pos = 0;
 220         struct iwl_priv *priv = file->private_data;
 221         size_t bufsz;
 222
 223         /* default is to dump the entire data segment */
 224         if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
 225                 priv->dbgfs_sram_offset = 0x800000;
 226                 if (priv->ucode_type == UCODE_INIT)
 227                         priv->dbgfs_sram_len = priv->ucode_init_data.len;
 228                 else
 229                         priv->dbgfs_sram_len = priv->ucode_data.len;
 230         }
 231         bufsz =  30 + priv->dbgfs_sram_len * sizeof(char) * 10;
 232         buf = kmalloc(bufsz, GFP_KERNEL);
 233         if (!buf)
 234                 return -ENOMEM;
 235         pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
 236                         priv->dbgfs_sram_len);
 237         pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
 238                         priv->dbgfs_sram_offset);
 239         for (i = priv->dbgfs_sram_len; i > 0; i -= 4) {
 240                 val = iwl_read_targ_mem(priv, priv->dbgfs_sram_offset + \
 241                                         priv->dbgfs_sram_len - i);
 242                 if (i < 4) {
 243                         switch (i) {
 244                         case 1:
 245                                 val &= BYTE1_MASK;
 246                                 break;
 247                         case 2:
 248                                 val &= BYTE2_MASK;
 249                                 break;
 250                         case 3:
 251                                 val &= BYTE3_MASK;
 252                                 break;
 253                         }
 254                 }
 255                 if (!(i % 16))
 256                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 257                 pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
 258         }
 259         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 260
 261         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 262         kfree(buf);
 263         return ret;
 264 }
 265
 266 static ssize_t iwl_dbgfs_sram_write(struct file *file,
 267                                         const char __user *user_buf,
 268                                         size_t count, loff_t *ppos)
 269 {
 270         struct iwl_priv *priv = file->private_data;
 271         char buf[64];
 272         int buf_size;
 273         u32 offset, len;
 274
 275         memset(buf, 0, sizeof(buf));
 276         buf_size = min(count, sizeof(buf) -  1);
 277         if (copy_from_user(buf, user_buf, buf_size))
 278                 return -EFAULT;
 279
 280         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 281                 priv->dbgfs_sram_offset = offset;
 282                 priv->dbgfs_sram_len = len;
 283         } else {
 284                 priv->dbgfs_sram_offset = 0;
 285                 priv->dbgfs_sram_len = 0;
 286         }
 287
 288         return count;
 289 }
 290
 291 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 292                                         size_t count, loff_t *ppos)
 293 {
 294         struct iwl_priv *priv = file->private_data;
 295         struct iwl_station_entry *station;
 296         int max_sta = priv->hw_params.max_stations;
 297         char *buf;
 298         int i, j, pos = 0;
 299         ssize_t ret;
 300         /* Add 30 for initial string */
 301         const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
 302
 303         buf = kmalloc(bufsz, GFP_KERNEL);
 304         if (!buf)
 305                 return -ENOMEM;
 306
 307         pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
 308                         priv->num_stations);
 309
 310         for (i = 0; i < max_sta; i++) {
 311                 station = &priv->stations[i];
 312                 if (station->used) {
 313                         pos += scnprintf(buf + pos, bufsz - pos,
 314                                         "station %d:\ngeneral data:\n", i+1);
 315                         pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n",
 316                                         station->sta.sta.sta_id);
 317                         pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n",
 318                                         station->sta.mode);
 319                         pos += scnprintf(buf + pos, bufsz - pos,
 320                                         "flags: 0x%x\n",
 321                                         station->sta.station_flags_msk);
 322                         pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n");
 323                         pos += scnprintf(buf + pos, bufsz - pos,
 324                                         "seq_num\t\ttxq_id");
 325                         pos += scnprintf(buf + pos, bufsz - pos,
 326                                         "\tframe_count\twait_for_ba\t");
 327                         pos += scnprintf(buf + pos, bufsz - pos,
 328                                         "start_idx\tbitmap0\t");
 329                         pos += scnprintf(buf + pos, bufsz - pos,
 330                                         "bitmap1\trate_n_flags");
 331                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 332
 333                         for (j = 0; j < MAX_TID_COUNT; j++) {
 334                                 pos += scnprintf(buf + pos, bufsz - pos,
 335                                                 "[%d]:\t\t%u", j,
 336                                                 station->tid[j].seq_number);
 337                                 pos += scnprintf(buf + pos, bufsz - pos,
 338                                                 "\t%u\t\t%u\t\t%u\t\t",
 339                                                 station->tid[j].agg.txq_id,
 340                                                 station->tid[j].agg.frame_count,
 341                                                 station->tid[j].agg.wait_for_ba);
 342                                 pos += scnprintf(buf + pos, bufsz - pos,
 343                                                 "%u\t%llu\t%u",
 344                                                 station->tid[j].agg.start_idx,
 345                                                 (unsigned long long)station->tid[j].agg.bitmap,
 346                                                 station->tid[j].agg.rate_n_flags);
 347                                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 348                         }
 349                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 350                 }
 351         }
 352
 353         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 354         kfree(buf);
 355         return ret;
 356 }
 357
 358 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
 359                                        char __user *user_buf,
 360                                        size_t count,
 361                                        loff_t *ppos)
 362 {
 363         ssize_t ret;
 364         struct iwl_priv *priv = file->private_data;
 365         int pos = 0, ofs = 0, buf_size = 0;
 366         const u8 *ptr;
 367         char *buf;
 368         u16 eeprom_ver;
 369         size_t eeprom_len = priv->cfg->eeprom_size;
 370         buf_size = 4 * eeprom_len + 256;
 371
 372         if (eeprom_len % 16) {
 373                 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
 374                 return -ENODATA;
 375         }
 376
 377         ptr = priv->eeprom;
 378         if (!ptr) {
 379                 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
 380                 return -ENOMEM;
 381         }
 382
 383         /* 4 characters for byte 0xYY */
 384         buf = kzalloc(buf_size, GFP_KERNEL);
 385         if (!buf) {
 386                 IWL_ERR(priv, "Can not allocate Buffer\n");
 387                 return -ENOMEM;
 388         }
 389         eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
 390         pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
 391                         "version: 0x%x\n",
 392                         (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
 393                          ? "OTP" : "EEPROM", eeprom_ver);
 394         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
 395                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
 396                 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
 397                                    buf_size - pos, 0);
 398                 pos += strlen(buf + pos);
 399                 if (buf_size - pos > 0)
 400                         buf[pos++] = '\n';
 401         }
 402
 403         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 404         kfree(buf);
 405         return ret;
 406 }
 407
 408 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
 409                                          char __user *user_buf,
 410                                          size_t count, loff_t *ppos)
 411 {
 412         struct iwl_priv *priv = file->private_data;
 413         char *buf;
 414         int pos = 0;
 415         ssize_t ret = -ENOMEM;
 416
 417         ret = pos = priv->cfg->ops->lib->dump_nic_event_log(
 418                                         priv, true, &buf, true);
 419         if (buf) {
 420                 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 421                 kfree(buf);
 422         }
 423         return ret;
 424 }
 425
 426 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
 427                                         const char __user *user_buf,
 428                                         size_t count, loff_t *ppos)
 429 {
 430         struct iwl_priv *priv = file->private_data;
 431         u32 event_log_flag;
 432         char buf[8];
 433         int buf_size;
 434
 435         memset(buf, 0, sizeof(buf));
 436         buf_size = min(count, sizeof(buf) -  1);
 437         if (copy_from_user(buf, user_buf, buf_size))
 438                 return -EFAULT;
 439         if (sscanf(buf, "%d", &event_log_flag) != 1)
 440                 return -EFAULT;
 441         if (event_log_flag == 1)
 442                 priv->cfg->ops->lib->dump_nic_event_log(priv, true,
 443                                                         NULL, false);
 444
 445         return count;
 446 }
 447
 448
 449
 450 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 451                                        size_t count, loff_t *ppos)
 452 {
 453         struct iwl_priv *priv = file->private_data;
 454         struct ieee80211_channel *channels = NULL;
 455         const struct ieee80211_supported_band *supp_band = NULL;
 456         int pos = 0, i, bufsz = PAGE_SIZE;
 457         char *buf;
 458         ssize_t ret;
 459
 460         if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
 461                 return -EAGAIN;
 462
 463         buf = kzalloc(bufsz, GFP_KERNEL);
 464         if (!buf) {
 465                 IWL_ERR(priv, "Can not allocate Buffer\n");
 466                 return -ENOMEM;
 467         }
 468
 469         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
 470         if (supp_band) {
 471                 channels = supp_band->channels;
 472
 473                 pos += scnprintf(buf + pos, bufsz - pos,
 474                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
 475                                 supp_band->n_channels);
 476
 477                 for (i = 0; i < supp_band->n_channels; i++)
 478                         pos += scnprintf(buf + pos, bufsz - pos,
 479                                         "%d: %ddBm: BSS%s%s, %s.\n",
 480                                         ieee80211_frequency_to_channel(
 481                                         channels[i].center_freq),
 482                                         channels[i].max_power,
 483                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 484                                         " (IEEE 802.11h required)" : "",
 485                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 486                                         || (channels[i].flags &
 487                                         IEEE80211_CHAN_RADAR)) ? "" :
 488                                         ", IBSS",
 489                                         channels[i].flags &
 490                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 491                                         "passive only" : "active/passive");
 492         }
 493         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
 494         if (supp_band) {
 495                 channels = supp_band->channels;
 496
 497                 pos += scnprintf(buf + pos, bufsz - pos,
 498                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
 499                                 supp_band->n_channels);
 500
 501                 for (i = 0; i < supp_band->n_channels; i++)
 502                         pos += scnprintf(buf + pos, bufsz - pos,
 503                                         "%d: %ddBm: BSS%s%s, %s.\n",
 504                                         ieee80211_frequency_to_channel(
 505                                         channels[i].center_freq),
 506                                         channels[i].max_power,
 507                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 508                                         " (IEEE 802.11h required)" : "",
 509                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 510                                         || (channels[i].flags &
 511                                         IEEE80211_CHAN_RADAR)) ? "" :
 512                                         ", IBSS",
 513                                         channels[i].flags &
 514                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 515                                         "passive only" : "active/passive");
 516         }
 517         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 518         kfree(buf);
 519         return ret;
 520 }
 521
 522 static ssize_t iwl_dbgfs_status_read(struct file *file,
 523                                                 char __user *user_buf,
 524                                                 size_t count, loff_t *ppos) {
 525
 526         struct iwl_priv *priv = file->private_data;
 527         char buf[512];
 528         int pos = 0;
 529         const size_t bufsz = sizeof(buf);
 530
 531         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
 532                 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
 533         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_SYNC_ACTIVE: %d\n",
 534                 test_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status));
 535         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
 536                 test_bit(STATUS_INT_ENABLED, &priv->status));
 537         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 538                 test_bit(STATUS_RF_KILL_HW, &priv->status));
 539         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 540                 test_bit(STATUS_CT_KILL, &priv->status));
 541         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
 542                 test_bit(STATUS_INIT, &priv->status));
 543         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 544                 test_bit(STATUS_ALIVE, &priv->status));
 545         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 546                 test_bit(STATUS_READY, &priv->status));
 547         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
 548                 test_bit(STATUS_TEMPERATURE, &priv->status));
 549         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
 550                 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
 551         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 552                 test_bit(STATUS_EXIT_PENDING, &priv->status));
 553         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 554                 test_bit(STATUS_STATISTICS, &priv->status));
 555         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 556                 test_bit(STATUS_SCANNING, &priv->status));
 557         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 558                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
 559         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 560                 test_bit(STATUS_SCAN_HW, &priv->status));
 561         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 562                 test_bit(STATUS_POWER_PMI, &priv->status));
 563         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 564                 test_bit(STATUS_FW_ERROR, &priv->status));
 565         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_MODE_PENDING:\t %d\n",
 566                 test_bit(STATUS_MODE_PENDING, &priv->status));
 567         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 568 }
 569
 570 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
 571                                         char __user *user_buf,
 572                                         size_t count, loff_t *ppos) {
 573
 574         struct iwl_priv *priv = file->private_data;
 575         int pos = 0;
 576         int cnt = 0;
 577         char *buf;
 578         int bufsz = 24 * 64; /* 24 items * 64 char per item */
 579         ssize_t ret;
 580
 581         buf = kzalloc(bufsz, GFP_KERNEL);
 582         if (!buf) {
 583                 IWL_ERR(priv, "Can not allocate Buffer\n");
 584                 return -ENOMEM;
 585         }
 586
 587         pos += scnprintf(buf + pos, bufsz - pos,
 588                         "Interrupt Statistics Report:\n");
 589
 590         pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
 591                 priv->isr_stats.hw);
 592         pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
 593                 priv->isr_stats.sw);
 594         if (priv->isr_stats.sw > 0) {
 595                 pos += scnprintf(buf + pos, bufsz - pos,
 596                         "\tLast Restarting Code:  0x%X\n",
 597                         priv->isr_stats.sw_err);
 598         }
 599 #ifdef CONFIG_IWLWIFI_DEBUG
 600         pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
 601                 priv->isr_stats.sch);
 602         pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
 603                 priv->isr_stats.alive);
 604 #endif
 605         pos += scnprintf(buf + pos, bufsz - pos,
 606                 "HW RF KILL switch toggled:\t %u\n",
 607                 priv->isr_stats.rfkill);
 608
 609         pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
 610                 priv->isr_stats.ctkill);
 611
 612         pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
 613                 priv->isr_stats.wakeup);
 614
 615         pos += scnprintf(buf + pos, bufsz - pos,
 616                 "Rx command responses:\t\t %u\n",
 617                 priv->isr_stats.rx);
 618         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 619                 if (priv->isr_stats.rx_handlers[cnt] > 0)
 620                         pos += scnprintf(buf + pos, bufsz - pos,
 621                                 "\tRx handler[%36s]:\t\t %u\n",
 622                                 get_cmd_string(cnt),
 623                                 priv->isr_stats.rx_handlers[cnt]);
 624         }
 625
 626         pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
 627                 priv->isr_stats.tx);
 628
 629         pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
 630                 priv->isr_stats.unhandled);
 631
 632         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 633         kfree(buf);
 634         return ret;
 635 }
 636
 637 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
 638                                          const char __user *user_buf,
 639                                          size_t count, loff_t *ppos)
 640 {
 641         struct iwl_priv *priv = file->private_data;
 642         char buf[8];
 643         int buf_size;
 644         u32 reset_flag;
 645
 646         memset(buf, 0, sizeof(buf));
 647         buf_size = min(count, sizeof(buf) -  1);
 648         if (copy_from_user(buf, user_buf, buf_size))
 649                 return -EFAULT;
 650         if (sscanf(buf, "%x", &reset_flag) != 1)
 651                 return -EFAULT;
 652         if (reset_flag == 0)
 653                 iwl_clear_isr_stats(priv);
 654
 655         return count;
 656 }
 657
 658 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 659                                        size_t count, loff_t *ppos)
 660 {
 661         struct iwl_priv *priv = file->private_data;
 662         int pos = 0, i;
 663         char buf[256];
 664         const size_t bufsz = sizeof(buf);
 665         ssize_t ret;
 666
 667         for (i = 0; i < AC_NUM; i++) {
 668                 pos += scnprintf(buf + pos, bufsz - pos,
 669                         "\tcw_min\tcw_max\taifsn\ttxop\n");
 670                 pos += scnprintf(buf + pos, bufsz - pos,
 671                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
 672                                 priv->qos_data.def_qos_parm.ac[i].cw_min,
 673                                 priv->qos_data.def_qos_parm.ac[i].cw_max,
 674                                 priv->qos_data.def_qos_parm.ac[i].aifsn,
 675                                 priv->qos_data.def_qos_parm.ac[i].edca_txop);
 676         }
 677         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 678         return ret;
 679 }
 680
 681 static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
 682                                   size_t count, loff_t *ppos)
 683 {
 684         struct iwl_priv *priv = file->private_data;
 685         int pos = 0;
 686         char buf[256];
 687         const size_t bufsz = sizeof(buf);
 688         ssize_t ret;
 689
 690         pos += scnprintf(buf + pos, bufsz - pos,
 691                          "allow blinking: %s\n",
 692                          (priv->allow_blinking) ? "True" : "False");
 693         if (priv->allow_blinking) {
 694                 pos += scnprintf(buf + pos, bufsz - pos,
 695                                  "Led blinking rate: %u\n",
 696                                  priv->last_blink_rate);
 697                 pos += scnprintf(buf + pos, bufsz - pos,
 698                                  "Last blink time: %lu\n",
 699                                  priv->last_blink_time);
 700         }
 701
 702         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 703         return ret;
 704 }
 705
 706 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 707                                 char __user *user_buf,
 708                                 size_t count, loff_t *ppos)
 709 {
 710         struct iwl_priv *priv = file->private_data;
 711         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 712         struct iwl_tt_restriction *restriction;
 713         char buf[100];
 714         int pos = 0;
 715         const size_t bufsz = sizeof(buf);
 716         ssize_t ret;
 717
 718         pos += scnprintf(buf + pos, bufsz - pos,
 719                         "Thermal Throttling Mode: %s\n",
 720                         tt->advanced_tt ? "Advance" : "Legacy");
 721         pos += scnprintf(buf + pos, bufsz - pos,
 722                         "Thermal Throttling State: %d\n",
 723                         tt->state);
 724         if (tt->advanced_tt) {
 725                 restriction = tt->restriction + tt->state;
 726                 pos += scnprintf(buf + pos, bufsz - pos,
 727                                 "Tx mode: %d\n",
 728                                 restriction->tx_stream);
 729                 pos += scnprintf(buf + pos, bufsz - pos,
 730                                 "Rx mode: %d\n",
 731                                 restriction->rx_stream);
 732                 pos += scnprintf(buf + pos, bufsz - pos,
 733                                 "HT mode: %d\n",
 734                                 restriction->is_ht);
 735         }
 736         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 737         return ret;
 738 }
 739
 740 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 741                                          const char __user *user_buf,
 742                                          size_t count, loff_t *ppos)
 743 {
 744         struct iwl_priv *priv = file->private_data;
 745         char buf[8];
 746         int buf_size;
 747         int ht40;
 748
 749         memset(buf, 0, sizeof(buf));
 750         buf_size = min(count, sizeof(buf) -  1);
 751         if (copy_from_user(buf, user_buf, buf_size))
 752                 return -EFAULT;
 753         if (sscanf(buf, "%d", &ht40) != 1)
 754                 return -EFAULT;
 755         if (!iwl_is_associated(priv))
 756                 priv->disable_ht40 = ht40 ? true : false;
 757         else {
 758                 IWL_ERR(priv, "Sta associated with AP - "
 759                         "Change to 40MHz channel support is not allowed\n");
 760                 return -EINVAL;
 761         }
 762
 763         return count;
 764 }
 765
 766 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 767                                          char __user *user_buf,
 768                                          size_t count, loff_t *ppos)
 769 {
 770         struct iwl_priv *priv = file->private_data;
 771         char buf[100];
 772         int pos = 0;
 773         const size_t bufsz = sizeof(buf);
 774         ssize_t ret;
 775
 776         pos += scnprintf(buf + pos, bufsz - pos,
 777                         "11n 40MHz Mode: %s\n",
 778                         priv->disable_ht40 ? "Disabled" : "Enabled");
 779         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 780         return ret;
 781 }
 782
 783 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 784                                                     const char __user *user_buf,
 785                                                     size_t count, loff_t *ppos)
 786 {
 787         struct iwl_priv *priv = file->private_data;
 788         char buf[8];
 789         int buf_size;
 790         int value;
 791
 792         memset(buf, 0, sizeof(buf));
 793         buf_size = min(count, sizeof(buf) -  1);
 794         if (copy_from_user(buf, user_buf, buf_size))
 795                 return -EFAULT;
 796
 797         if (sscanf(buf, "%d", &value) != 1)
 798                 return -EINVAL;
 799
 800         /*
 801          * Our users expect 0 to be "CAM", but 0 isn't actually
 802          * valid here. However, let's not confuse them and present
 803          * IWL_POWER_INDEX_1 as "1", not "0".
 804          */
 805         if (value == 0)
 806                 return -EINVAL;
 807         else if (value > 0)
 808                 value -= 1;
 809
 810         if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 811                 return -EINVAL;
 812
 813         if (!iwl_is_ready_rf(priv))
 814                 return -EAGAIN;
 815
 816         priv->power_data.debug_sleep_level_override = value;
 817
 818         mutex_lock(&priv->mutex);
 819         iwl_power_update_mode(priv, true);
 820         mutex_unlock(&priv->mutex);
 821
 822         return count;
 823 }
 824
 825 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 826                                                    char __user *user_buf,
 827                                                    size_t count, loff_t *ppos)
 828 {
 829         struct iwl_priv *priv = file->private_data;
 830         char buf[10];
 831         int pos, value;
 832         const size_t bufsz = sizeof(buf);
 833
 834         /* see the write function */
 835         value = priv->power_data.debug_sleep_level_override;
 836         if (value >= 0)
 837                 value += 1;
 838
 839         pos = scnprintf(buf, bufsz, "%d\n", value);
 840         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 841 }
 842
 843 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 844                                                     char __user *user_buf,
 845                                                     size_t count, loff_t *ppos)
 846 {
 847         struct iwl_priv *priv = file->private_data;
 848         char buf[200];
 849         int pos = 0, i;
 850         const size_t bufsz = sizeof(buf);
 851         struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 852
 853         pos += scnprintf(buf + pos, bufsz - pos,
 854                          "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 855         pos += scnprintf(buf + pos, bufsz - pos,
 856                          "RX/TX timeout: %d/%d usec\n",
 857                          le32_to_cpu(cmd->rx_data_timeout),
 858                          le32_to_cpu(cmd->tx_data_timeout));
 859         for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 860                 pos += scnprintf(buf + pos, bufsz - pos,
 861                                  "sleep_interval[%d]: %d\n", i,
 862                                  le32_to_cpu(cmd->sleep_interval[i]));
 863
 864         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 865 }
 866
 867 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 868 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
 869 DEBUGFS_READ_FILE_OPS(nvm);
 870 DEBUGFS_READ_FILE_OPS(stations);
 871 DEBUGFS_READ_FILE_OPS(channels);
 872 DEBUGFS_READ_FILE_OPS(status);
 873 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 874 DEBUGFS_READ_FILE_OPS(qos);
 875 DEBUGFS_READ_FILE_OPS(led);
 876 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 877 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 878 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 879 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 880
 881 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
 882                                          char __user *user_buf,
 883                                          size_t count, loff_t *ppos)
 884 {
 885         struct iwl_priv *priv = file->private_data;
 886         int pos = 0, ofs = 0;
 887         int cnt = 0, entry;
 888         struct iwl_tx_queue *txq;
 889         struct iwl_queue *q;
 890         struct iwl_rx_queue *rxq = &priv->rxq;
 891         char *buf;
 892         int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
 893                 (priv->cfg->num_of_queues * 32 * 8) + 400;
 894         const u8 *ptr;
 895         ssize_t ret;
 896
 897         if (!priv->txq) {
 898                 IWL_ERR(priv, "txq not ready\n");
 899                 return -EAGAIN;
 900         }
 901         buf = kzalloc(bufsz, GFP_KERNEL);
 902         if (!buf) {
 903                 IWL_ERR(priv, "Can not allocate buffer\n");
 904                 return -ENOMEM;
 905         }
 906         pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
 907         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 908                 txq = &priv->txq[cnt];
 909                 q = &txq->q;
 910                 pos += scnprintf(buf + pos, bufsz - pos,
 911                                 "q[%d]: read_ptr: %u, write_ptr: %u\n",
 912                                 cnt, q->read_ptr, q->write_ptr);
 913         }
 914         if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
 915                 ptr = priv->tx_traffic;
 916                 pos += scnprintf(buf + pos, bufsz - pos,
 917                                 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
 918                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 919                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 920                              entry++,  ofs += 16) {
 921                                 pos += scnprintf(buf + pos, bufsz - pos,
 922                                                 "0x%.4x ", ofs);
 923                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 924                                                    buf + pos, bufsz - pos, 0);
 925                                 pos += strlen(buf + pos);
 926                                 if (bufsz - pos > 0)
 927                                         buf[pos++] = '\n';
 928                         }
 929                 }
 930         }
 931
 932         pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
 933         pos += scnprintf(buf + pos, bufsz - pos,
 934                         "read: %u, write: %u\n",
 935                          rxq->read, rxq->write);
 936
 937         if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
 938                 ptr = priv->rx_traffic;
 939                 pos += scnprintf(buf + pos, bufsz - pos,
 940                                 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
 941                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 942                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 943                              entry++,  ofs += 16) {
 944                                 pos += scnprintf(buf + pos, bufsz - pos,
 945                                                 "0x%.4x ", ofs);
 946                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 947                                                    buf + pos, bufsz - pos, 0);
 948                                 pos += strlen(buf + pos);
 949                                 if (bufsz - pos > 0)
 950                                         buf[pos++] = '\n';
 951                         }
 952                 }
 953         }
 954
 955         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 956         kfree(buf);
 957         return ret;
 958 }
 959
 960 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
 961                                          const char __user *user_buf,
 962                                          size_t count, loff_t *ppos)
 963 {
 964         struct iwl_priv *priv = file->private_data;
 965         char buf[8];
 966         int buf_size;
 967         int traffic_log;
 968
 969         memset(buf, 0, sizeof(buf));
 970         buf_size = min(count, sizeof(buf) -  1);
 971         if (copy_from_user(buf, user_buf, buf_size))
 972                 return -EFAULT;
 973         if (sscanf(buf, "%d", &traffic_log) != 1)
 974                 return -EFAULT;
 975         if (traffic_log == 0)
 976                 iwl_reset_traffic_log(priv);
 977
 978         return count;
 979 }
 980
 981 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
 982                                                 char __user *user_buf,
 983                                                 size_t count, loff_t *ppos) {
 984
 985         struct iwl_priv *priv = file->private_data;
 986         struct iwl_tx_queue *txq;
 987         struct iwl_queue *q;
 988         char *buf;
 989         int pos = 0;
 990         int cnt;
 991         int ret;
 992         const size_t bufsz = sizeof(char) * 64 * priv->cfg->num_of_queues;
 993
 994         if (!priv->txq) {
 995                 IWL_ERR(priv, "txq not ready\n");
 996                 return -EAGAIN;
 997         }
 998         buf = kzalloc(bufsz, GFP_KERNEL);
 999         if (!buf)
1000                 return -ENOMEM;
1001
1002         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
1003                 txq = &priv->txq[cnt];
1004                 q = &txq->q;
1005                 pos += scnprintf(buf + pos, bufsz - pos,
1006                                 "hwq %.2d: read=%u write=%u stop=%d"
1007                                 " swq_id=%#.2x (ac %d/hwq %d)\n",
1008                                 cnt, q->read_ptr, q->write_ptr,
1009                                 !!test_bit(cnt, priv->queue_stopped),
1010                                 txq->swq_id,
1011                                 txq->swq_id & 0x80 ? txq->swq_id & 3 :
1012                                 txq->swq_id,
1013                                 txq->swq_id & 0x80 ? (txq->swq_id >> 2) &
1014                                 0x1f : txq->swq_id);
1015                 if (cnt >= 4)
1016                         continue;
1017                 /* for the ACs, display the stop count too */
1018                 pos += scnprintf(buf + pos, bufsz - pos,
1019                                 "        stop-count: %d\n",
1020                                 atomic_read(&priv->queue_stop_count[cnt]));
1021         }
1022         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1023         kfree(buf);
1024         return ret;
1025 }
1026
1027 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
1028                                                 char __user *user_buf,
1029                                                 size_t count, loff_t *ppos) {
1030
1031         struct iwl_priv *priv = file->private_data;
1032         struct iwl_rx_queue *rxq = &priv->rxq;
1033         char buf[256];
1034         int pos = 0;
1035         const size_t bufsz = sizeof(buf);
1036
1037         pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
1038                                                 rxq->read);
1039         pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
1040                                                 rxq->write);
1041         pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1042                                                 rxq->free_count);
1043         pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1044                          le16_to_cpu(rxq->rb_stts->closed_rb_num) &  0x0FFF);
1045         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1046 }
1047
1048 static int iwl_dbgfs_statistics_flag(struct iwl_priv *priv, char *buf,
1049                                      int bufsz)
1050 {
1051         int p = 0;
1052
1053         p += scnprintf(buf + p, bufsz - p,
1054                 "Statistics Flag(0x%X):\n",
1055                 le32_to_cpu(priv->statistics.flag));
1056         if (le32_to_cpu(priv->statistics.flag) & UCODE_STATISTICS_CLEAR_MSK)
1057                 p += scnprintf(buf + p, bufsz - p,
1058                 "\tStatistics have been cleared\n");
1059         p += scnprintf(buf + p, bufsz - p,
1060                 "\tOperational Frequency: %s\n",
1061                 (le32_to_cpu(priv->statistics.flag) &
1062                 UCODE_STATISTICS_FREQUENCY_MSK)
1063                  ? "2.4 GHz" : "5.2 GHz");
1064         p += scnprintf(buf + p, bufsz - p,
1065                 "\tTGj Narrow Band: %s\n",
1066                 (le32_to_cpu(priv->statistics.flag) &
1067                 UCODE_STATISTICS_NARROW_BAND_MSK)
1068                  ? "enabled" : "disabled");
1069         return p;
1070 }
1071
1072 static const char ucode_stats_header[] =
1073         "%-32s     current  acumulative       delta         max\n";
1074 static const char ucode_stats_short_format[] =
1075         "  %-30s %10u\n";
1076 static const char ucode_stats_format[] =
1077         "  %-30s %10u  %10u  %10u  %10u\n";
1078
1079 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1080                                         char __user *user_buf,
1081                                         size_t count, loff_t *ppos)
1082 {
1083         struct iwl_priv *priv = file->private_data;
1084         int pos = 0;
1085         char *buf;
1086         int bufsz = sizeof(struct statistics_rx_phy) * 40 +
1087                 sizeof(struct statistics_rx_non_phy) * 40 +
1088                 sizeof(struct statistics_rx_ht_phy) * 40 + 400;
1089         ssize_t ret;
1090         struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
1091         struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
1092         struct statistics_rx_non_phy *general, *accum_general;
1093         struct statistics_rx_non_phy *delta_general, *max_general;
1094         struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
1095
1096         if (!iwl_is_alive(priv))
1097                 return -EAGAIN;
1098
1099         buf = kzalloc(bufsz, GFP_KERNEL);
1100         if (!buf) {
1101                 IWL_ERR(priv, "Can not allocate Buffer\n");
1102                 return -ENOMEM;
1103         }
1104
1105         /* the statistic information display here is based on
1106          * the last statistics notification from uCode
1107          * might not reflect the current uCode activity
1108          */
1109         ofdm = &priv->statistics.rx.ofdm;
1110         cck = &priv->statistics.rx.cck;
1111         general = &priv->statistics.rx.general;
1112         ht = &priv->statistics.rx.ofdm_ht;
1113         accum_ofdm = &priv->accum_statistics.rx.ofdm;
1114         accum_cck = &priv->accum_statistics.rx.cck;
1115         accum_general = &priv->accum_statistics.rx.general;
1116         accum_ht = &priv->accum_statistics.rx.ofdm_ht;
1117         delta_ofdm = &priv->delta_statistics.rx.ofdm;
1118         delta_cck = &priv->delta_statistics.rx.cck;
1119         delta_general = &priv->delta_statistics.rx.general;
1120         delta_ht = &priv->delta_statistics.rx.ofdm_ht;
1121         max_ofdm = &priv->max_delta.rx.ofdm;
1122         max_cck = &priv->max_delta.rx.cck;
1123         max_general = &priv->max_delta.rx.general;
1124         max_ht = &priv->max_delta.rx.ofdm_ht;
1125
1126         pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1127         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1128                          "Statistics_Rx - OFDM:");
1129         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1130                          "ina_cnt:", le32_to_cpu(ofdm->ina_cnt),
1131                          accum_ofdm->ina_cnt,
1132                          delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
1133         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1134                          "fina_cnt:",
1135                          le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
1136                          delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
1137         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1138                          "plcp_err:",
1139                          le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
1140                          delta_ofdm->plcp_err, max_ofdm->plcp_err);
1141         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1142                          "crc32_err:",
1143                          le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
1144                          delta_ofdm->crc32_err, max_ofdm->crc32_err);
1145         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1146                          "overrun_err:",
1147                          le32_to_cpu(ofdm->overrun_err),
1148                          accum_ofdm->overrun_err,
1149                          delta_ofdm->overrun_err, max_ofdm->overrun_err);
1150         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1151                          "early_overrun_err:",
1152                          le32_to_cpu(ofdm->early_overrun_err),
1153                          accum_ofdm->early_overrun_err,
1154                          delta_ofdm->early_overrun_err,
1155                          max_ofdm->early_overrun_err);
1156         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1157                          "crc32_good:",
1158                          le32_to_cpu(ofdm->crc32_good),
1159                          accum_ofdm->crc32_good,
1160                          delta_ofdm->crc32_good, max_ofdm->crc32_good);
1161         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1162                          "false_alarm_cnt:",
1163                          le32_to_cpu(ofdm->false_alarm_cnt),
1164                          accum_ofdm->false_alarm_cnt,
1165                          delta_ofdm->false_alarm_cnt,
1166                          max_ofdm->false_alarm_cnt);
1167         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1168                          "fina_sync_err_cnt:",
1169                          le32_to_cpu(ofdm->fina_sync_err_cnt),
1170                          accum_ofdm->fina_sync_err_cnt,
1171                          delta_ofdm->fina_sync_err_cnt,
1172                          max_ofdm->fina_sync_err_cnt);
1173         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1174                          "sfd_timeout:",
1175                          le32_to_cpu(ofdm->sfd_timeout),
1176                          accum_ofdm->sfd_timeout,
1177                          delta_ofdm->sfd_timeout,
1178                          max_ofdm->sfd_timeout);
1179         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1180                          "fina_timeout:",
1181                          le32_to_cpu(ofdm->fina_timeout),
1182                          accum_ofdm->fina_timeout,
1183                          delta_ofdm->fina_timeout,
1184                          max_ofdm->fina_timeout);
1185         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1186                          "unresponded_rts:",
1187                          le32_to_cpu(ofdm->unresponded_rts),
1188                          accum_ofdm->unresponded_rts,
1189                          delta_ofdm->unresponded_rts,
1190                          max_ofdm->unresponded_rts);
1191         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1192                         "rxe_frame_lmt_ovrun:",
1193                          le32_to_cpu(ofdm->rxe_frame_limit_overrun),
1194                          accum_ofdm->rxe_frame_limit_overrun,
1195                          delta_ofdm->rxe_frame_limit_overrun,
1196                          max_ofdm->rxe_frame_limit_overrun);
1197         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1198                          "sent_ack_cnt:",
1199                          le32_to_cpu(ofdm->sent_ack_cnt),
1200                          accum_ofdm->sent_ack_cnt,
1201                          delta_ofdm->sent_ack_cnt,
1202                          max_ofdm->sent_ack_cnt);
1203         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1204                          "sent_cts_cnt:",
1205                          le32_to_cpu(ofdm->sent_cts_cnt),
1206                          accum_ofdm->sent_cts_cnt,
1207                          delta_ofdm->sent_cts_cnt, max_ofdm->sent_cts_cnt);
1208         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1209                          "sent_ba_rsp_cnt:",
1210                          le32_to_cpu(ofdm->sent_ba_rsp_cnt),
1211                          accum_ofdm->sent_ba_rsp_cnt,
1212                          delta_ofdm->sent_ba_rsp_cnt,
1213                          max_ofdm->sent_ba_rsp_cnt);
1214         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1215                          "dsp_self_kill:",
1216                          le32_to_cpu(ofdm->dsp_self_kill),
1217                          accum_ofdm->dsp_self_kill,
1218                          delta_ofdm->dsp_self_kill,
1219                          max_ofdm->dsp_self_kill);
1220         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1221                          "mh_format_err:",
1222                          le32_to_cpu(ofdm->mh_format_err),
1223                          accum_ofdm->mh_format_err,
1224                          delta_ofdm->mh_format_err,
1225                          max_ofdm->mh_format_err);
1226         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1227                          "re_acq_main_rssi_sum:",
1228                          le32_to_cpu(ofdm->re_acq_main_rssi_sum),
1229                          accum_ofdm->re_acq_main_rssi_sum,
1230                          delta_ofdm->re_acq_main_rssi_sum,
1231                         max_ofdm->re_acq_main_rssi_sum);
1232
1233         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1234                          "Statistics_Rx - CCK:");
1235         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1236                          "ina_cnt:",
1237                          le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
1238                          delta_cck->ina_cnt, max_cck->ina_cnt);
1239         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1240                          "fina_cnt:",
1241                          le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
1242                          delta_cck->fina_cnt, max_cck->fina_cnt);
1243         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1244                          "plcp_err:",
1245                          le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
1246                          delta_cck->plcp_err, max_cck->plcp_err);
1247         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1248                          "crc32_err:",
1249                          le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
1250                          delta_cck->crc32_err, max_cck->crc32_err);
1251         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1252                          "overrun_err:",
1253                          le32_to_cpu(cck->overrun_err),
1254                          accum_cck->overrun_err,
1255                          delta_cck->overrun_err, max_cck->overrun_err);
1256         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1257                          "early_overrun_err:",
1258                          le32_to_cpu(cck->early_overrun_err),
1259                          accum_cck->early_overrun_err,
1260                          delta_cck->early_overrun_err,
1261                          max_cck->early_overrun_err);
1262         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1263                          "crc32_good:",
1264                          le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
1265                          delta_cck->crc32_good,
1266                          max_cck->crc32_good);
1267         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1268                          "false_alarm_cnt:",
1269                          le32_to_cpu(cck->false_alarm_cnt),
1270                          accum_cck->false_alarm_cnt,
1271                          delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
1272         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1273                          "fina_sync_err_cnt:",
1274                          le32_to_cpu(cck->fina_sync_err_cnt),
1275                          accum_cck->fina_sync_err_cnt,
1276                          delta_cck->fina_sync_err_cnt,
1277                          max_cck->fina_sync_err_cnt);
1278         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1279                          "sfd_timeout:",
1280                          le32_to_cpu(cck->sfd_timeout),
1281                          accum_cck->sfd_timeout,
1282                          delta_cck->sfd_timeout, max_cck->sfd_timeout);
1283         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1284                          "fina_timeout:",
1285                          le32_to_cpu(cck->fina_timeout),
1286                          accum_cck->fina_timeout,
1287                          delta_cck->fina_timeout, max_cck->fina_timeout);
1288         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1289                          "unresponded_rts:",
1290                          le32_to_cpu(cck->unresponded_rts),
1291                          accum_cck->unresponded_rts,
1292                          delta_cck->unresponded_rts,
1293                          max_cck->unresponded_rts);
1294         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1295                         "rxe_frame_lmt_ovrun:",
1296                          le32_to_cpu(cck->rxe_frame_limit_overrun),
1297                          accum_cck->rxe_frame_limit_overrun,
1298                          delta_cck->rxe_frame_limit_overrun,
1299                          max_cck->rxe_frame_limit_overrun);
1300         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1301                          "sent_ack_cnt:",
1302                          le32_to_cpu(cck->sent_ack_cnt),
1303                          accum_cck->sent_ack_cnt,
1304                          delta_cck->sent_ack_cnt,
1305                          max_cck->sent_ack_cnt);
1306         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1307                          "sent_cts_cnt:",
1308                          le32_to_cpu(cck->sent_cts_cnt),
1309                          accum_cck->sent_cts_cnt,
1310                          delta_cck->sent_cts_cnt,
1311                          max_cck->sent_cts_cnt);
1312         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1313                          "sent_ba_rsp_cnt:",
1314                          le32_to_cpu(cck->sent_ba_rsp_cnt),
1315                          accum_cck->sent_ba_rsp_cnt,
1316                          delta_cck->sent_ba_rsp_cnt,
1317                          max_cck->sent_ba_rsp_cnt);
1318         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1319                          "dsp_self_kill:",
1320                          le32_to_cpu(cck->dsp_self_kill),
1321                          accum_cck->dsp_self_kill,
1322                          delta_cck->dsp_self_kill,
1323                          max_cck->dsp_self_kill);
1324         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1325                          "mh_format_err:",
1326                          le32_to_cpu(cck->mh_format_err),
1327                          accum_cck->mh_format_err,
1328                          delta_cck->mh_format_err, max_cck->mh_format_err);
1329         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1330                          "re_acq_main_rssi_sum:",
1331                          le32_to_cpu(cck->re_acq_main_rssi_sum),
1332                          accum_cck->re_acq_main_rssi_sum,
1333                          delta_cck->re_acq_main_rssi_sum,
1334                          max_cck->re_acq_main_rssi_sum);
1335
1336         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1337                         "Statistics_Rx - GENERAL:");
1338         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1339                          "bogus_cts:",
1340                          le32_to_cpu(general->bogus_cts),
1341                          accum_general->bogus_cts,
1342                          delta_general->bogus_cts, max_general->bogus_cts);
1343         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1344                          "bogus_ack:",
1345                          le32_to_cpu(general->bogus_ack),
1346                          accum_general->bogus_ack,
1347                          delta_general->bogus_ack, max_general->bogus_ack);
1348         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1349                          "non_bssid_frames:",
1350                          le32_to_cpu(general->non_bssid_frames),
1351                          accum_general->non_bssid_frames,
1352                          delta_general->non_bssid_frames,
1353                          max_general->non_bssid_frames);
1354         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1355                          "filtered_frames:",
1356                          le32_to_cpu(general->filtered_frames),
1357                          accum_general->filtered_frames,
1358                          delta_general->filtered_frames,
1359                          max_general->filtered_frames);
1360         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1361                          "non_channel_beacons:",
1362                          le32_to_cpu(general->non_channel_beacons),
1363                          accum_general->non_channel_beacons,
1364                          delta_general->non_channel_beacons,
1365                          max_general->non_channel_beacons);
1366         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1367                          "channel_beacons:",
1368                          le32_to_cpu(general->channel_beacons),
1369                          accum_general->channel_beacons,
1370                          delta_general->channel_beacons,
1371                          max_general->channel_beacons);
1372         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1373                          "num_missed_bcon:",
1374                          le32_to_cpu(general->num_missed_bcon),
1375                          accum_general->num_missed_bcon,
1376                          delta_general->num_missed_bcon,
1377                          max_general->num_missed_bcon);
1378         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1379                         "adc_rx_saturation_time:",
1380                          le32_to_cpu(general->adc_rx_saturation_time),
1381                          accum_general->adc_rx_saturation_time,
1382                          delta_general->adc_rx_saturation_time,
1383                          max_general->adc_rx_saturation_time);
1384         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1385                         "ina_detect_search_tm:",
1386                          le32_to_cpu(general->ina_detection_search_time),
1387                          accum_general->ina_detection_search_time,
1388                          delta_general->ina_detection_search_time,
1389                          max_general->ina_detection_search_time);
1390         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1391                          "beacon_silence_rssi_a:",
1392                          le32_to_cpu(general->beacon_silence_rssi_a),
1393                          accum_general->beacon_silence_rssi_a,
1394                          delta_general->beacon_silence_rssi_a,
1395                          max_general->beacon_silence_rssi_a);
1396         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1397                          "beacon_silence_rssi_b:",
1398                          le32_to_cpu(general->beacon_silence_rssi_b),
1399                          accum_general->beacon_silence_rssi_b,
1400                          delta_general->beacon_silence_rssi_b,
1401                          max_general->beacon_silence_rssi_b);
1402         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1403                          "beacon_silence_rssi_c:",
1404                          le32_to_cpu(general->beacon_silence_rssi_c),
1405                          accum_general->beacon_silence_rssi_c,
1406                          delta_general->beacon_silence_rssi_c,
1407                          max_general->beacon_silence_rssi_c);
1408         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1409                         "interference_data_flag:",
1410                          le32_to_cpu(general->interference_data_flag),
1411                          accum_general->interference_data_flag,
1412                          delta_general->interference_data_flag,
1413                          max_general->interference_data_flag);
1414         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1415                          "channel_load:",
1416                          le32_to_cpu(general->channel_load),
1417                          accum_general->channel_load,
1418                          delta_general->channel_load,
1419                          max_general->channel_load);
1420         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1421                          "dsp_false_alarms:",
1422                          le32_to_cpu(general->dsp_false_alarms),
1423                          accum_general->dsp_false_alarms,
1424                          delta_general->dsp_false_alarms,
1425                          max_general->dsp_false_alarms);
1426         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1427                          "beacon_rssi_a:",
1428                          le32_to_cpu(general->beacon_rssi_a),
1429                          accum_general->beacon_rssi_a,
1430                          delta_general->beacon_rssi_a,
1431                          max_general->beacon_rssi_a);
1432         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1433                          "beacon_rssi_b:",
1434                          le32_to_cpu(general->beacon_rssi_b),
1435                          accum_general->beacon_rssi_b,
1436                          delta_general->beacon_rssi_b,
1437                          max_general->beacon_rssi_b);
1438         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1439                          "beacon_rssi_c:",
1440                          le32_to_cpu(general->beacon_rssi_c),
1441                          accum_general->beacon_rssi_c,
1442                          delta_general->beacon_rssi_c,
1443                          max_general->beacon_rssi_c);
1444         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1445                          "beacon_energy_a:",
1446                          le32_to_cpu(general->beacon_energy_a),
1447                          accum_general->beacon_energy_a,
1448                          delta_general->beacon_energy_a,
1449                          max_general->beacon_energy_a);
1450         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1451                          "beacon_energy_b:",
1452                          le32_to_cpu(general->beacon_energy_b),
1453                          accum_general->beacon_energy_b,
1454                          delta_general->beacon_energy_b,
1455                          max_general->beacon_energy_b);
1456         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1457                          "beacon_energy_c:",
1458                          le32_to_cpu(general->beacon_energy_c),
1459                          accum_general->beacon_energy_c,
1460                          delta_general->beacon_energy_c,
1461                          max_general->beacon_energy_c);
1462
1463         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - OFDM_HT:\n");
1464         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1465                         "Statistics_Rx - OFDM_HT:");
1466         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1467                          "plcp_err:",
1468                          le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1469                          delta_ht->plcp_err, max_ht->plcp_err);
1470         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1471                          "overrun_err:",
1472                          le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1473                          delta_ht->overrun_err, max_ht->overrun_err);
1474         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1475                          "early_overrun_err:",
1476                          le32_to_cpu(ht->early_overrun_err),
1477                          accum_ht->early_overrun_err,
1478                          delta_ht->early_overrun_err,
1479                          max_ht->early_overrun_err);
1480         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1481                          "crc32_good:",
1482                          le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1483                          delta_ht->crc32_good, max_ht->crc32_good);
1484         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1485                          "crc32_err:",
1486                          le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1487                          delta_ht->crc32_err, max_ht->crc32_err);
1488         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1489                          "mh_format_err:",
1490                          le32_to_cpu(ht->mh_format_err),
1491                          accum_ht->mh_format_err,
1492                          delta_ht->mh_format_err, max_ht->mh_format_err);
1493         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1494                          "agg_crc32_good:",
1495                          le32_to_cpu(ht->agg_crc32_good),
1496                          accum_ht->agg_crc32_good,
1497                          delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1498         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1499                          "agg_mpdu_cnt:",
1500                          le32_to_cpu(ht->agg_mpdu_cnt),
1501                          accum_ht->agg_mpdu_cnt,
1502                          delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1503         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1504                          "agg_cnt:",
1505                          le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1506                          delta_ht->agg_cnt, max_ht->agg_cnt);
1507         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1508                          "unsupport_mcs:",
1509                          le32_to_cpu(ht->unsupport_mcs),
1510                          accum_ht->unsupport_mcs,
1511                          delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1512
1513         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1514         kfree(buf);
1515         return ret;
1516 }
1517
1518 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1519                                         char __user *user_buf,
1520                                         size_t count, loff_t *ppos)
1521 {
1522         struct iwl_priv *priv = file->private_data;
1523         int pos = 0;
1524         char *buf;
1525         int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1526         ssize_t ret;
1527         struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1528
1529         if (!iwl_is_alive(priv))
1530                 return -EAGAIN;
1531
1532         buf = kzalloc(bufsz, GFP_KERNEL);
1533         if (!buf) {
1534                 IWL_ERR(priv, "Can not allocate Buffer\n");
1535                 return -ENOMEM;
1536         }
1537
1538         /* the statistic information display here is based on
1539          * the last statistics notification from uCode
1540          * might not reflect the current uCode activity
1541          */
1542         tx = &priv->statistics.tx;
1543         accum_tx = &priv->accum_statistics.tx;
1544         delta_tx = &priv->delta_statistics.tx;
1545         max_tx = &priv->max_delta.tx;
1546         pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1547         pos += scnprintf(buf + pos, bufsz - pos,  ucode_stats_header,
1548                         "Statistics_Tx:");
1549         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1550                          "preamble:",
1551                          le32_to_cpu(tx->preamble_cnt),
1552                          accum_tx->preamble_cnt,
1553                          delta_tx->preamble_cnt, max_tx->preamble_cnt);
1554         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1555                          "rx_detected_cnt:",
1556                          le32_to_cpu(tx->rx_detected_cnt),
1557                          accum_tx->rx_detected_cnt,
1558                          delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1559         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1560                          "bt_prio_defer_cnt:",
1561                          le32_to_cpu(tx->bt_prio_defer_cnt),
1562                          accum_tx->bt_prio_defer_cnt,
1563                          delta_tx->bt_prio_defer_cnt,
1564                          max_tx->bt_prio_defer_cnt);
1565         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1566                          "bt_prio_kill_cnt:",
1567                          le32_to_cpu(tx->bt_prio_kill_cnt),
1568                          accum_tx->bt_prio_kill_cnt,
1569                          delta_tx->bt_prio_kill_cnt,
1570                          max_tx->bt_prio_kill_cnt);
1571         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1572                          "few_bytes_cnt:",
1573                          le32_to_cpu(tx->few_bytes_cnt),
1574                          accum_tx->few_bytes_cnt,
1575                          delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1576         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1577                          "cts_timeout:",
1578                          le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1579                          delta_tx->cts_timeout, max_tx->cts_timeout);
1580         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1581                          "ack_timeout:",
1582                          le32_to_cpu(tx->ack_timeout),
1583                          accum_tx->ack_timeout,
1584                          delta_tx->ack_timeout, max_tx->ack_timeout);
1585         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1586                          "expected_ack_cnt:",
1587                          le32_to_cpu(tx->expected_ack_cnt),
1588                          accum_tx->expected_ack_cnt,
1589                          delta_tx->expected_ack_cnt,
1590                          max_tx->expected_ack_cnt);
1591         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1592                          "actual_ack_cnt:",
1593                          le32_to_cpu(tx->actual_ack_cnt),
1594                          accum_tx->actual_ack_cnt,
1595                          delta_tx->actual_ack_cnt,
1596                          max_tx->actual_ack_cnt);
1597         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1598                          "dump_msdu_cnt:",
1599                          le32_to_cpu(tx->dump_msdu_cnt),
1600                          accum_tx->dump_msdu_cnt,
1601                          delta_tx->dump_msdu_cnt,
1602                          max_tx->dump_msdu_cnt);
1603         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1604                          "abort_nxt_frame_mismatch:",
1605                          le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1606                          accum_tx->burst_abort_next_frame_mismatch_cnt,
1607                          delta_tx->burst_abort_next_frame_mismatch_cnt,
1608                          max_tx->burst_abort_next_frame_mismatch_cnt);
1609         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1610                          "abort_missing_nxt_frame:",
1611                          le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1612                          accum_tx->burst_abort_missing_next_frame_cnt,
1613                          delta_tx->burst_abort_missing_next_frame_cnt,
1614                          max_tx->burst_abort_missing_next_frame_cnt);
1615         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1616                          "cts_timeout_collision:",
1617                          le32_to_cpu(tx->cts_timeout_collision),
1618                          accum_tx->cts_timeout_collision,
1619                          delta_tx->cts_timeout_collision,
1620                          max_tx->cts_timeout_collision);
1621         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1622                         "ack_ba_timeout_collision:",
1623                          le32_to_cpu(tx->ack_or_ba_timeout_collision),
1624                          accum_tx->ack_or_ba_timeout_collision,
1625                          delta_tx->ack_or_ba_timeout_collision,
1626                          max_tx->ack_or_ba_timeout_collision);
1627         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1628                          "agg ba_timeout:",
1629                          le32_to_cpu(tx->agg.ba_timeout),
1630                          accum_tx->agg.ba_timeout,
1631                          delta_tx->agg.ba_timeout,
1632                          max_tx->agg.ba_timeout);
1633         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1634                         "agg ba_resched_frames:",
1635                          le32_to_cpu(tx->agg.ba_reschedule_frames),
1636                          accum_tx->agg.ba_reschedule_frames,
1637                          delta_tx->agg.ba_reschedule_frames,
1638                          max_tx->agg.ba_reschedule_frames);
1639         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1640                         "agg scd_query_agg_frame:",
1641                          le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1642                          accum_tx->agg.scd_query_agg_frame_cnt,
1643                          delta_tx->agg.scd_query_agg_frame_cnt,
1644                          max_tx->agg.scd_query_agg_frame_cnt);
1645         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1646                          "agg scd_query_no_agg:",
1647                          le32_to_cpu(tx->agg.scd_query_no_agg),
1648                          accum_tx->agg.scd_query_no_agg,
1649                          delta_tx->agg.scd_query_no_agg,
1650                          max_tx->agg.scd_query_no_agg);
1651         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1652                          "agg scd_query_agg:",
1653                          le32_to_cpu(tx->agg.scd_query_agg),
1654                          accum_tx->agg.scd_query_agg,
1655                          delta_tx->agg.scd_query_agg,
1656                          max_tx->agg.scd_query_agg);
1657         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1658                         "agg scd_query_mismatch:",
1659                          le32_to_cpu(tx->agg.scd_query_mismatch),
1660                          accum_tx->agg.scd_query_mismatch,
1661                          delta_tx->agg.scd_query_mismatch,
1662                          max_tx->agg.scd_query_mismatch);
1663         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1664                          "agg frame_not_ready:",
1665                          le32_to_cpu(tx->agg.frame_not_ready),
1666                          accum_tx->agg.frame_not_ready,
1667                          delta_tx->agg.frame_not_ready,
1668                          max_tx->agg.frame_not_ready);
1669         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1670                          "agg underrun:",
1671                          le32_to_cpu(tx->agg.underrun),
1672                          accum_tx->agg.underrun,
1673                          delta_tx->agg.underrun, max_tx->agg.underrun);
1674         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1675                          "agg bt_prio_kill:",
1676                          le32_to_cpu(tx->agg.bt_prio_kill),
1677                          accum_tx->agg.bt_prio_kill,
1678                          delta_tx->agg.bt_prio_kill,
1679                          max_tx->agg.bt_prio_kill);
1680         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1681                          "agg rx_ba_rsp_cnt:",
1682                          le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1683                          accum_tx->agg.rx_ba_rsp_cnt,
1684                          delta_tx->agg.rx_ba_rsp_cnt,
1685                          max_tx->agg.rx_ba_rsp_cnt);
1686
1687         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1688         kfree(buf);
1689         return ret;
1690 }
1691
1692 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1693                                         char __user *user_buf,
1694                                         size_t count, loff_t *ppos)
1695 {
1696         struct iwl_priv *priv = file->private_data;
1697         int pos = 0;
1698         char *buf;
1699         int bufsz = sizeof(struct statistics_general) * 10 + 300;
1700         ssize_t ret;
1701         struct statistics_general *general, *accum_general;
1702         struct statistics_general *delta_general, *max_general;
1703         struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1704         struct statistics_div *div, *accum_div, *delta_div, *max_div;
1705
1706         if (!iwl_is_alive(priv))
1707                 return -EAGAIN;
1708
1709         buf = kzalloc(bufsz, GFP_KERNEL);
1710         if (!buf) {
1711                 IWL_ERR(priv, "Can not allocate Buffer\n");
1712                 return -ENOMEM;
1713         }
1714
1715         /* the statistic information display here is based on
1716          * the last statistics notification from uCode
1717          * might not reflect the current uCode activity
1718          */
1719         general = &priv->statistics.general;
1720         dbg = &priv->statistics.general.dbg;
1721         div = &priv->statistics.general.div;
1722         accum_general = &priv->accum_statistics.general;
1723         delta_general = &priv->delta_statistics.general;
1724         max_general = &priv->max_delta.general;
1725         accum_dbg = &priv->accum_statistics.general.dbg;
1726         delta_dbg = &priv->delta_statistics.general.dbg;
1727         max_dbg = &priv->max_delta.general.dbg;
1728         accum_div = &priv->accum_statistics.general.div;
1729         delta_div = &priv->delta_statistics.general.div;
1730         max_div = &priv->max_delta.general.div;
1731         pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1732         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1733                         "Statistics_General:");
1734         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_short_format,
1735                          "temperature:",
1736                          le32_to_cpu(general->temperature));
1737         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_short_format,
1738                          "temperature_m:",
1739                          le32_to_cpu(general->temperature_m));
1740         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1741                          "burst_check:",
1742                          le32_to_cpu(dbg->burst_check),
1743                          accum_dbg->burst_check,
1744                          delta_dbg->burst_check, max_dbg->burst_check);
1745         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1746                          "burst_count:",
1747                          le32_to_cpu(dbg->burst_count),
1748                          accum_dbg->burst_count,
1749                          delta_dbg->burst_count, max_dbg->burst_count);
1750         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1751                          "sleep_time:",
1752                          le32_to_cpu(general->sleep_time),
1753                          accum_general->sleep_time,
1754                          delta_general->sleep_time, max_general->sleep_time);
1755         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1756                          "slots_out:",
1757                          le32_to_cpu(general->slots_out),
1758                          accum_general->slots_out,
1759                          delta_general->slots_out, max_general->slots_out);
1760         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1761                          "slots_idle:",
1762                          le32_to_cpu(general->slots_idle),
1763                          accum_general->slots_idle,
1764                          delta_general->slots_idle, max_general->slots_idle);
1765         pos += scnprintf(buf + pos, bufsz - pos, "ttl_timestamp:\t\t\t%u\n",
1766                          le32_to_cpu(general->ttl_timestamp));
1767         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1768                          "tx_on_a:",
1769                          le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1770                          delta_div->tx_on_a, max_div->tx_on_a);
1771         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1772                          "tx_on_b:",
1773                          le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1774                          delta_div->tx_on_b, max_div->tx_on_b);
1775         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1776                          "exec_time:",
1777                          le32_to_cpu(div->exec_time), accum_div->exec_time,
1778                          delta_div->exec_time, max_div->exec_time);
1779         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1780                          "probe_time:",
1781                          le32_to_cpu(div->probe_time), accum_div->probe_time,
1782                          delta_div->probe_time, max_div->probe_time);
1783         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1784                          "rx_enable_counter:",
1785                          le32_to_cpu(general->rx_enable_counter),
1786                          accum_general->rx_enable_counter,
1787                          delta_general->rx_enable_counter,
1788                          max_general->rx_enable_counter);
1789         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1790                          "num_of_sos_states:",
1791                          le32_to_cpu(general->num_of_sos_states),
1792                          accum_general->num_of_sos_states,
1793                          delta_general->num_of_sos_states,
1794                          max_general->num_of_sos_states);
1795         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1796         kfree(buf);
1797         return ret;
1798 }
1799
1800 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1801                                         char __user *user_buf,
1802                                         size_t count, loff_t *ppos) {
1803
1804         struct iwl_priv *priv = file->private_data;
1805         int pos = 0;
1806         int cnt = 0;
1807         char *buf;
1808         int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1809         ssize_t ret;
1810         struct iwl_sensitivity_data *data;
1811
1812         data = &priv->sensitivity_data;
1813         buf = kzalloc(bufsz, GFP_KERNEL);
1814         if (!buf) {
1815                 IWL_ERR(priv, "Can not allocate Buffer\n");
1816                 return -ENOMEM;
1817         }
1818
1819         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1820                         data->auto_corr_ofdm);
1821         pos += scnprintf(buf + pos, bufsz - pos,
1822                         "auto_corr_ofdm_mrc:\t\t %u\n",
1823                         data->auto_corr_ofdm_mrc);
1824         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1825                         data->auto_corr_ofdm_x1);
1826         pos += scnprintf(buf + pos, bufsz - pos,
1827                         "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1828                         data->auto_corr_ofdm_mrc_x1);
1829         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1830                         data->auto_corr_cck);
1831         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1832                         data->auto_corr_cck_mrc);
1833         pos += scnprintf(buf + pos, bufsz - pos,
1834                         "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1835                         data->last_bad_plcp_cnt_ofdm);
1836         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1837                         data->last_fa_cnt_ofdm);
1838         pos += scnprintf(buf + pos, bufsz - pos,
1839                         "last_bad_plcp_cnt_cck:\t\t %u\n",
1840                         data->last_bad_plcp_cnt_cck);
1841         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1842                         data->last_fa_cnt_cck);
1843         pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1844                         data->nrg_curr_state);
1845         pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1846                         data->nrg_prev_state);
1847         pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1848         for (cnt = 0; cnt < 10; cnt++) {
1849                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1850                                 data->nrg_value[cnt]);
1851         }
1852         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1853         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1854         for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1855                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1856                                 data->nrg_silence_rssi[cnt]);
1857         }
1858         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1859         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1860                         data->nrg_silence_ref);
1861         pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1862                         data->nrg_energy_idx);
1863         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1864                         data->nrg_silence_idx);
1865         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1866                         data->nrg_th_cck);
1867         pos += scnprintf(buf + pos, bufsz - pos,
1868                         "nrg_auto_corr_silence_diff:\t %u\n",
1869                         data->nrg_auto_corr_silence_diff);
1870         pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1871                         data->num_in_cck_no_fa);
1872         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1873                         data->nrg_th_ofdm);
1874
1875         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1876         kfree(buf);
1877         return ret;
1878 }
1879
1880
1881 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1882                                         char __user *user_buf,
1883                                         size_t count, loff_t *ppos) {
1884
1885         struct iwl_priv *priv = file->private_data;
1886         int pos = 0;
1887         int cnt = 0;
1888         char *buf;
1889         int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1890         ssize_t ret;
1891         struct iwl_chain_noise_data *data;
1892
1893         data = &priv->chain_noise_data;
1894         buf = kzalloc(bufsz, GFP_KERNEL);
1895         if (!buf) {
1896                 IWL_ERR(priv, "Can not allocate Buffer\n");
1897                 return -ENOMEM;
1898         }
1899
1900         pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1901                         data->active_chains);
1902         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1903                         data->chain_noise_a);
1904         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1905                         data->chain_noise_b);
1906         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1907                         data->chain_noise_c);
1908         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1909                         data->chain_signal_a);
1910         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1911                         data->chain_signal_b);
1912         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1913                         data->chain_signal_c);
1914         pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1915                         data->beacon_count);
1916
1917         pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1918         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1919                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1920                                 data->disconn_array[cnt]);
1921         }
1922         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1923         pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1924         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1925                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1926                                 data->delta_gain_code[cnt]);
1927         }
1928         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1929         pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1930                         data->radio_write);
1931         pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1932                         data->state);
1933
1934         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1935         kfree(buf);
1936         return ret;
1937 }
1938
1939 static ssize_t iwl_dbgfs_tx_power_read(struct file *file,
1940                                         char __user *user_buf,
1941                                         size_t count, loff_t *ppos) {
1942
1943         struct iwl_priv *priv = file->private_data;
1944         char buf[128];
1945         int pos = 0;
1946         const size_t bufsz = sizeof(buf);
1947         struct statistics_tx *tx;
1948
1949         if (!iwl_is_alive(priv))
1950                 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
1951         else {
1952                 tx = &priv->statistics.tx;
1953                 if (tx->tx_power.ant_a ||
1954                     tx->tx_power.ant_b ||
1955                     tx->tx_power.ant_c) {
1956                         pos += scnprintf(buf + pos, bufsz - pos,
1957                                 "tx power: (1/2 dB step)\n");
1958                         if ((priv->cfg->valid_tx_ant & ANT_A) &&
1959                             tx->tx_power.ant_a)
1960                                 pos += scnprintf(buf + pos, bufsz - pos,
1961                                                 "\tantenna A: 0x%X\n",
1962                                                 tx->tx_power.ant_a);
1963                         if ((priv->cfg->valid_tx_ant & ANT_B) &&
1964                             tx->tx_power.ant_b)
1965                                 pos += scnprintf(buf + pos, bufsz - pos,
1966                                                 "\tantenna B: 0x%X\n",
1967                                                 tx->tx_power.ant_b);
1968                         if ((priv->cfg->valid_tx_ant & ANT_C) &&
1969                             tx->tx_power.ant_c)
1970                                 pos += scnprintf(buf + pos, bufsz - pos,
1971                                                 "\tantenna C: 0x%X\n",
1972                                                 tx->tx_power.ant_c);
1973                 } else
1974                         pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
1975         }
1976         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1977 }
1978
1979 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1980                                                     char __user *user_buf,
1981                                                     size_t count, loff_t *ppos)
1982 {
1983         struct iwl_priv *priv = file->private_data;
1984         char buf[60];
1985         int pos = 0;
1986         const size_t bufsz = sizeof(buf);
1987         u32 pwrsave_status;
1988
1989         pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
1990                         CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1991
1992         pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1993         pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1994                 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1995                 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1996                 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1997                 "error");
1998
1999         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2000 }
2001
2002 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
2003                                          const char __user *user_buf,
2004                                          size_t count, loff_t *ppos)
2005 {
2006         struct iwl_priv *priv = file->private_data;
2007         char buf[8];
2008         int buf_size;
2009         int clear;
2010
2011         memset(buf, 0, sizeof(buf));
2012         buf_size = min(count, sizeof(buf) -  1);
2013         if (copy_from_user(buf, user_buf, buf_size))
2014                 return -EFAULT;
2015         if (sscanf(buf, "%d", &clear) != 1)
2016                 return -EFAULT;
2017
2018         /* make request to uCode to retrieve statistics information */
2019         mutex_lock(&priv->mutex);
2020         iwl_send_statistics_request(priv, CMD_SYNC, true);
2021         mutex_unlock(&priv->mutex);
2022
2023         return count;
2024 }
2025
2026 static ssize_t iwl_dbgfs_csr_write(struct file *file,
2027                                          const char __user *user_buf,
2028                                          size_t count, loff_t *ppos)
2029 {
2030         struct iwl_priv *priv = file->private_data;
2031         char buf[8];
2032         int buf_size;
2033         int csr;
2034
2035         memset(buf, 0, sizeof(buf));
2036         buf_size = min(count, sizeof(buf) -  1);
2037         if (copy_from_user(buf, user_buf, buf_size))
2038                 return -EFAULT;
2039         if (sscanf(buf, "%d", &csr) != 1)
2040                 return -EFAULT;
2041
2042         if (priv->cfg->ops->lib->dump_csr)
2043                 priv->cfg->ops->lib->dump_csr(priv);
2044
2045         return count;
2046 }
2047
2048 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
2049                                         char __user *user_buf,
2050                                         size_t count, loff_t *ppos) {
2051
2052         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2053         int pos = 0;
2054         char buf[128];
2055         const size_t bufsz = sizeof(buf);
2056         ssize_t ret;
2057
2058         pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
2059                         priv->event_log.ucode_trace ? "On" : "Off");
2060         pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
2061                         priv->event_log.non_wraps_count);
2062         pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
2063                         priv->event_log.wraps_once_count);
2064         pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
2065                         priv->event_log.wraps_more_count);
2066
2067         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2068         return ret;
2069 }
2070
2071 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
2072                                          const char __user *user_buf,
2073                                          size_t count, loff_t *ppos)
2074 {
2075         struct iwl_priv *priv = file->private_data;
2076         char buf[8];
2077         int buf_size;
2078         int trace;
2079
2080         memset(buf, 0, sizeof(buf));
2081         buf_size = min(count, sizeof(buf) -  1);
2082         if (copy_from_user(buf, user_buf, buf_size))
2083                 return -EFAULT;
2084         if (sscanf(buf, "%d", &trace) != 1)
2085                 return -EFAULT;
2086
2087         if (trace) {
2088                 priv->event_log.ucode_trace = true;
2089                 /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
2090                 mod_timer(&priv->ucode_trace,
2091                         jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
2092         } else {
2093                 priv->event_log.ucode_trace = false;
2094                 del_timer_sync(&priv->ucode_trace);
2095         }
2096
2097         return count;
2098 }
2099
2100 static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
2101                                          char __user *user_buf,
2102                                          size_t count, loff_t *ppos)
2103 {
2104         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2105         char *buf;
2106         int pos = 0;
2107         ssize_t ret = -EFAULT;
2108
2109         if (priv->cfg->ops->lib->dump_fh) {
2110                 ret = pos = priv->cfg->ops->lib->dump_fh(priv, &buf, true);
2111                 if (buf) {
2112                         ret = simple_read_from_buffer(user_buf,
2113                                                       count, ppos, buf, pos);
2114                         kfree(buf);
2115                 }
2116         }
2117
2118         return ret;
2119 }
2120
2121 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
2122                                         char __user *user_buf,
2123                                         size_t count, loff_t *ppos) {
2124
2125         struct iwl_priv *priv = file->private_data;
2126         int pos = 0;
2127         char buf[12];
2128         const size_t bufsz = sizeof(buf);
2129         ssize_t ret;
2130
2131         pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
2132                         priv->missed_beacon_threshold);
2133
2134         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2135         return ret;
2136 }
2137
2138 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
2139                                          const char __user *user_buf,
2140                                          size_t count, loff_t *ppos)
2141 {
2142         struct iwl_priv *priv = file->private_data;
2143         char buf[8];
2144         int buf_size;
2145         int missed;
2146
2147         memset(buf, 0, sizeof(buf));
2148         buf_size = min(count, sizeof(buf) -  1);
2149         if (copy_from_user(buf, user_buf, buf_size))
2150                 return -EFAULT;
2151         if (sscanf(buf, "%d", &missed) != 1)
2152                 return -EINVAL;
2153
2154         if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
2155             missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
2156                 priv->missed_beacon_threshold =
2157                         IWL_MISSED_BEACON_THRESHOLD_DEF;
2158         else
2159                 priv->missed_beacon_threshold = missed;
2160
2161         return count;
2162 }
2163
2164 static ssize_t iwl_dbgfs_internal_scan_write(struct file *file,
2165                                          const char __user *user_buf,
2166                                          size_t count, loff_t *ppos)
2167 {
2168         struct iwl_priv *priv = file->private_data;
2169         char buf[8];
2170         int buf_size;
2171         int scan;
2172
2173         memset(buf, 0, sizeof(buf));
2174         buf_size = min(count, sizeof(buf) -  1);
2175         if (copy_from_user(buf, user_buf, buf_size))
2176                 return -EFAULT;
2177         if (sscanf(buf, "%d", &scan) != 1)
2178                 return -EINVAL;
2179
2180         iwl_internal_short_hw_scan(priv);
2181
2182         return count;
2183 }
2184
2185 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
2186                                         char __user *user_buf,
2187                                         size_t count, loff_t *ppos) {
2188
2189         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2190         int pos = 0;
2191         char buf[12];
2192         const size_t bufsz = sizeof(buf);
2193         ssize_t ret;
2194
2195         pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
2196                         priv->cfg->plcp_delta_threshold);
2197
2198         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2199         return ret;
2200 }
2201
2202 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
2203                                         const char __user *user_buf,
2204                                         size_t count, loff_t *ppos) {
2205
2206         struct iwl_priv *priv = file->private_data;
2207         char buf[8];
2208         int buf_size;
2209         int plcp;
2210
2211         memset(buf, 0, sizeof(buf));
2212         buf_size = min(count, sizeof(buf) -  1);
2213         if (copy_from_user(buf, user_buf, buf_size))
2214                 return -EFAULT;
2215         if (sscanf(buf, "%d", &plcp) != 1)
2216                 return -EINVAL;
2217         if ((plcp <= IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
2218                 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
2219                 priv->cfg->plcp_delta_threshold =
2220                         IWL_MAX_PLCP_ERR_THRESHOLD_DEF;
2221         else
2222                 priv->cfg->plcp_delta_threshold = plcp;
2223         return count;
2224 }
2225
2226 DEBUGFS_READ_FILE_OPS(rx_statistics);
2227 DEBUGFS_READ_FILE_OPS(tx_statistics);
2228 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
2229 DEBUGFS_READ_FILE_OPS(rx_queue);
2230 DEBUGFS_READ_FILE_OPS(tx_queue);
2231 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2232 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2233 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2234 DEBUGFS_READ_FILE_OPS(sensitivity);
2235 DEBUGFS_READ_FILE_OPS(chain_noise);
2236 DEBUGFS_READ_FILE_OPS(tx_power);
2237 DEBUGFS_READ_FILE_OPS(power_save_status);
2238 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2239 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
2240 DEBUGFS_WRITE_FILE_OPS(csr);
2241 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2242 DEBUGFS_READ_FILE_OPS(fh_reg);
2243 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2244 DEBUGFS_WRITE_FILE_OPS(internal_scan);
2245 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2246
2247 /*
2248  * Create the debugfs files and directories
2249  *
2250  */
2251 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
2252 {
2253         struct dentry *phyd = priv->hw->wiphy->debugfsdir;
2254         struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
2255
2256         dir_drv = debugfs_create_dir(name, phyd);
2257         if (!dir_drv)
2258                 return -ENOMEM;
2259
2260         priv->debugfs_dir = dir_drv;
2261
2262         dir_data = debugfs_create_dir("data", dir_drv);
2263         if (!dir_data)
2264                 goto err;
2265         dir_rf = debugfs_create_dir("rf", dir_drv);
2266         if (!dir_rf)
2267                 goto err;
2268         dir_debug = debugfs_create_dir("debug", dir_drv);
2269         if (!dir_debug)
2270                 goto err;
2271
2272         DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
2273         DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
2274         DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR);
2275         DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
2276         DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
2277         DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
2278         DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
2279         DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
2280         DEBUGFS_ADD_FILE(led, dir_data, S_IRUSR);
2281         DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
2282         DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
2283         DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
2284         DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
2285         DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
2286         DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
2287         DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
2288         DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
2289         DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
2290         DEBUGFS_ADD_FILE(tx_power, dir_debug, S_IRUSR);
2291         DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
2292         DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
2293         DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
2294         DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
2295         DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
2296         DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
2297         DEBUGFS_ADD_FILE(internal_scan, dir_debug, S_IWUSR);
2298         DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
2299         if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
2300                 DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
2301                 DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
2302                 DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
2303                 DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
2304                 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
2305                 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
2306         }
2307         DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf, &priv->disable_sens_cal);
2308         DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
2309                          &priv->disable_chain_noise_cal);
2310         if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
2311             ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
2312                 DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf,
2313                                 &priv->disable_tx_power_cal);
2314         return 0;
2315
2316 err:
2317         IWL_ERR(priv, "Can't create the debugfs directory\n");
2318         iwl_dbgfs_unregister(priv);
2319         return -ENOMEM;
2320 }
2321 EXPORT_SYMBOL(iwl_dbgfs_register);
2322
2323 /**
2324  * Remove the debugfs files and directories
2325  *
2326  */
2327 void iwl_dbgfs_unregister(struct iwl_priv *priv)
2328 {
2329         if (!priv->debugfs_dir)
2330                 return;
2331
2332         debugfs_remove_recursive(priv->debugfs_dir);
2333         priv->debugfs_dir = NULL;
2334 }
2335 EXPORT_SYMBOL(iwl_dbgfs_unregister);
2336
2337
2338