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_INT_ENABLED:\t %d\n",
 534                 test_bit(STATUS_INT_ENABLED, &priv->status));
 535         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 536                 test_bit(STATUS_RF_KILL_HW, &priv->status));
 537         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 538                 test_bit(STATUS_CT_KILL, &priv->status));
 539         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
 540                 test_bit(STATUS_INIT, &priv->status));
 541         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 542                 test_bit(STATUS_ALIVE, &priv->status));
 543         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 544                 test_bit(STATUS_READY, &priv->status));
 545         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
 546                 test_bit(STATUS_TEMPERATURE, &priv->status));
 547         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
 548                 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
 549         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 550                 test_bit(STATUS_EXIT_PENDING, &priv->status));
 551         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 552                 test_bit(STATUS_STATISTICS, &priv->status));
 553         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 554                 test_bit(STATUS_SCANNING, &priv->status));
 555         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 556                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
 557         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 558                 test_bit(STATUS_SCAN_HW, &priv->status));
 559         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 560                 test_bit(STATUS_POWER_PMI, &priv->status));
 561         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 562                 test_bit(STATUS_FW_ERROR, &priv->status));
 563         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_MODE_PENDING:\t %d\n",
 564                 test_bit(STATUS_MODE_PENDING, &priv->status));
 565         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 566 }
 567
 568 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
 569                                         char __user *user_buf,
 570                                         size_t count, loff_t *ppos) {
 571
 572         struct iwl_priv *priv = file->private_data;
 573         int pos = 0;
 574         int cnt = 0;
 575         char *buf;
 576         int bufsz = 24 * 64; /* 24 items * 64 char per item */
 577         ssize_t ret;
 578
 579         buf = kzalloc(bufsz, GFP_KERNEL);
 580         if (!buf) {
 581                 IWL_ERR(priv, "Can not allocate Buffer\n");
 582                 return -ENOMEM;
 583         }
 584
 585         pos += scnprintf(buf + pos, bufsz - pos,
 586                         "Interrupt Statistics Report:\n");
 587
 588         pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
 589                 priv->isr_stats.hw);
 590         pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
 591                 priv->isr_stats.sw);
 592         if (priv->isr_stats.sw > 0) {
 593                 pos += scnprintf(buf + pos, bufsz - pos,
 594                         "\tLast Restarting Code:  0x%X\n",
 595                         priv->isr_stats.sw_err);
 596         }
 597 #ifdef CONFIG_IWLWIFI_DEBUG
 598         pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
 599                 priv->isr_stats.sch);
 600         pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
 601                 priv->isr_stats.alive);
 602 #endif
 603         pos += scnprintf(buf + pos, bufsz - pos,
 604                 "HW RF KILL switch toggled:\t %u\n",
 605                 priv->isr_stats.rfkill);
 606
 607         pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
 608                 priv->isr_stats.ctkill);
 609
 610         pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
 611                 priv->isr_stats.wakeup);
 612
 613         pos += scnprintf(buf + pos, bufsz - pos,
 614                 "Rx command responses:\t\t %u\n",
 615                 priv->isr_stats.rx);
 616         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 617                 if (priv->isr_stats.rx_handlers[cnt] > 0)
 618                         pos += scnprintf(buf + pos, bufsz - pos,
 619                                 "\tRx handler[%36s]:\t\t %u\n",
 620                                 get_cmd_string(cnt),
 621                                 priv->isr_stats.rx_handlers[cnt]);
 622         }
 623
 624         pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
 625                 priv->isr_stats.tx);
 626
 627         pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
 628                 priv->isr_stats.unhandled);
 629
 630         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 631         kfree(buf);
 632         return ret;
 633 }
 634
 635 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
 636                                          const char __user *user_buf,
 637                                          size_t count, loff_t *ppos)
 638 {
 639         struct iwl_priv *priv = file->private_data;
 640         char buf[8];
 641         int buf_size;
 642         u32 reset_flag;
 643
 644         memset(buf, 0, sizeof(buf));
 645         buf_size = min(count, sizeof(buf) -  1);
 646         if (copy_from_user(buf, user_buf, buf_size))
 647                 return -EFAULT;
 648         if (sscanf(buf, "%x", &reset_flag) != 1)
 649                 return -EFAULT;
 650         if (reset_flag == 0)
 651                 iwl_clear_isr_stats(priv);
 652
 653         return count;
 654 }
 655
 656 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 657                                        size_t count, loff_t *ppos)
 658 {
 659         struct iwl_priv *priv = file->private_data;
 660         int pos = 0, i;
 661         char buf[256];
 662         const size_t bufsz = sizeof(buf);
 663         ssize_t ret;
 664
 665         for (i = 0; i < AC_NUM; i++) {
 666                 pos += scnprintf(buf + pos, bufsz - pos,
 667                         "\tcw_min\tcw_max\taifsn\ttxop\n");
 668                 pos += scnprintf(buf + pos, bufsz - pos,
 669                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
 670                                 priv->qos_data.def_qos_parm.ac[i].cw_min,
 671                                 priv->qos_data.def_qos_parm.ac[i].cw_max,
 672                                 priv->qos_data.def_qos_parm.ac[i].aifsn,
 673                                 priv->qos_data.def_qos_parm.ac[i].edca_txop);
 674         }
 675         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 676         return ret;
 677 }
 678
 679 static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
 680                                   size_t count, loff_t *ppos)
 681 {
 682         struct iwl_priv *priv = file->private_data;
 683         int pos = 0;
 684         char buf[256];
 685         const size_t bufsz = sizeof(buf);
 686         ssize_t ret;
 687
 688         pos += scnprintf(buf + pos, bufsz - pos,
 689                          "allow blinking: %s\n",
 690                          (priv->allow_blinking) ? "True" : "False");
 691         if (priv->allow_blinking) {
 692                 pos += scnprintf(buf + pos, bufsz - pos,
 693                                  "Led blinking rate: %u\n",
 694                                  priv->last_blink_rate);
 695                 pos += scnprintf(buf + pos, bufsz - pos,
 696                                  "Last blink time: %lu\n",
 697                                  priv->last_blink_time);
 698         }
 699
 700         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 701         return ret;
 702 }
 703
 704 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 705                                 char __user *user_buf,
 706                                 size_t count, loff_t *ppos)
 707 {
 708         struct iwl_priv *priv = file->private_data;
 709         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 710         struct iwl_tt_restriction *restriction;
 711         char buf[100];
 712         int pos = 0;
 713         const size_t bufsz = sizeof(buf);
 714         ssize_t ret;
 715
 716         pos += scnprintf(buf + pos, bufsz - pos,
 717                         "Thermal Throttling Mode: %s\n",
 718                         tt->advanced_tt ? "Advance" : "Legacy");
 719         pos += scnprintf(buf + pos, bufsz - pos,
 720                         "Thermal Throttling State: %d\n",
 721                         tt->state);
 722         if (tt->advanced_tt) {
 723                 restriction = tt->restriction + tt->state;
 724                 pos += scnprintf(buf + pos, bufsz - pos,
 725                                 "Tx mode: %d\n",
 726                                 restriction->tx_stream);
 727                 pos += scnprintf(buf + pos, bufsz - pos,
 728                                 "Rx mode: %d\n",
 729                                 restriction->rx_stream);
 730                 pos += scnprintf(buf + pos, bufsz - pos,
 731                                 "HT mode: %d\n",
 732                                 restriction->is_ht);
 733         }
 734         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 735         return ret;
 736 }
 737
 738 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 739                                          const char __user *user_buf,
 740                                          size_t count, loff_t *ppos)
 741 {
 742         struct iwl_priv *priv = file->private_data;
 743         char buf[8];
 744         int buf_size;
 745         int ht40;
 746
 747         memset(buf, 0, sizeof(buf));
 748         buf_size = min(count, sizeof(buf) -  1);
 749         if (copy_from_user(buf, user_buf, buf_size))
 750                 return -EFAULT;
 751         if (sscanf(buf, "%d", &ht40) != 1)
 752                 return -EFAULT;
 753         if (!iwl_is_associated(priv))
 754                 priv->disable_ht40 = ht40 ? true : false;
 755         else {
 756                 IWL_ERR(priv, "Sta associated with AP - "
 757                         "Change to 40MHz channel support is not allowed\n");
 758                 return -EINVAL;
 759         }
 760
 761         return count;
 762 }
 763
 764 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 765                                          char __user *user_buf,
 766                                          size_t count, loff_t *ppos)
 767 {
 768         struct iwl_priv *priv = file->private_data;
 769         char buf[100];
 770         int pos = 0;
 771         const size_t bufsz = sizeof(buf);
 772         ssize_t ret;
 773
 774         pos += scnprintf(buf + pos, bufsz - pos,
 775                         "11n 40MHz Mode: %s\n",
 776                         priv->disable_ht40 ? "Disabled" : "Enabled");
 777         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 778         return ret;
 779 }
 780
 781 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 782                                                     const char __user *user_buf,
 783                                                     size_t count, loff_t *ppos)
 784 {
 785         struct iwl_priv *priv = file->private_data;
 786         char buf[8];
 787         int buf_size;
 788         int value;
 789
 790         memset(buf, 0, sizeof(buf));
 791         buf_size = min(count, sizeof(buf) -  1);
 792         if (copy_from_user(buf, user_buf, buf_size))
 793                 return -EFAULT;
 794
 795         if (sscanf(buf, "%d", &value) != 1)
 796                 return -EINVAL;
 797
 798         /*
 799          * Our users expect 0 to be "CAM", but 0 isn't actually
 800          * valid here. However, let's not confuse them and present
 801          * IWL_POWER_INDEX_1 as "1", not "0".
 802          */
 803         if (value == 0)
 804                 return -EINVAL;
 805         else if (value > 0)
 806                 value -= 1;
 807
 808         if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 809                 return -EINVAL;
 810
 811         if (!iwl_is_ready_rf(priv))
 812                 return -EAGAIN;
 813
 814         priv->power_data.debug_sleep_level_override = value;
 815
 816         mutex_lock(&priv->mutex);
 817         iwl_power_update_mode(priv, true);
 818         mutex_unlock(&priv->mutex);
 819
 820         return count;
 821 }
 822
 823 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 824                                                    char __user *user_buf,
 825                                                    size_t count, loff_t *ppos)
 826 {
 827         struct iwl_priv *priv = file->private_data;
 828         char buf[10];
 829         int pos, value;
 830         const size_t bufsz = sizeof(buf);
 831
 832         /* see the write function */
 833         value = priv->power_data.debug_sleep_level_override;
 834         if (value >= 0)
 835                 value += 1;
 836
 837         pos = scnprintf(buf, bufsz, "%d\n", value);
 838         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 839 }
 840
 841 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 842                                                     char __user *user_buf,
 843                                                     size_t count, loff_t *ppos)
 844 {
 845         struct iwl_priv *priv = file->private_data;
 846         char buf[200];
 847         int pos = 0, i;
 848         const size_t bufsz = sizeof(buf);
 849         struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 850
 851         pos += scnprintf(buf + pos, bufsz - pos,
 852                          "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 853         pos += scnprintf(buf + pos, bufsz - pos,
 854                          "RX/TX timeout: %d/%d usec\n",
 855                          le32_to_cpu(cmd->rx_data_timeout),
 856                          le32_to_cpu(cmd->tx_data_timeout));
 857         for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 858                 pos += scnprintf(buf + pos, bufsz - pos,
 859                                  "sleep_interval[%d]: %d\n", i,
 860                                  le32_to_cpu(cmd->sleep_interval[i]));
 861
 862         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 863 }
 864
 865 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 866 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
 867 DEBUGFS_READ_FILE_OPS(nvm);
 868 DEBUGFS_READ_FILE_OPS(stations);
 869 DEBUGFS_READ_FILE_OPS(channels);
 870 DEBUGFS_READ_FILE_OPS(status);
 871 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 872 DEBUGFS_READ_FILE_OPS(qos);
 873 DEBUGFS_READ_FILE_OPS(led);
 874 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 875 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 876 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 877 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 878
 879 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
 880                                          char __user *user_buf,
 881                                          size_t count, loff_t *ppos)
 882 {
 883         struct iwl_priv *priv = file->private_data;
 884         int pos = 0, ofs = 0;
 885         int cnt = 0, entry;
 886         struct iwl_tx_queue *txq;
 887         struct iwl_queue *q;
 888         struct iwl_rx_queue *rxq = &priv->rxq;
 889         char *buf;
 890         int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
 891                 (priv->cfg->num_of_queues * 32 * 8) + 400;
 892         const u8 *ptr;
 893         ssize_t ret;
 894
 895         if (!priv->txq) {
 896                 IWL_ERR(priv, "txq not ready\n");
 897                 return -EAGAIN;
 898         }
 899         buf = kzalloc(bufsz, GFP_KERNEL);
 900         if (!buf) {
 901                 IWL_ERR(priv, "Can not allocate buffer\n");
 902                 return -ENOMEM;
 903         }
 904         pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
 905         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 906                 txq = &priv->txq[cnt];
 907                 q = &txq->q;
 908                 pos += scnprintf(buf + pos, bufsz - pos,
 909                                 "q[%d]: read_ptr: %u, write_ptr: %u\n",
 910                                 cnt, q->read_ptr, q->write_ptr);
 911         }
 912         if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
 913                 ptr = priv->tx_traffic;
 914                 pos += scnprintf(buf + pos, bufsz - pos,
 915                                 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
 916                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 917                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 918                              entry++,  ofs += 16) {
 919                                 pos += scnprintf(buf + pos, bufsz - pos,
 920                                                 "0x%.4x ", ofs);
 921                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 922                                                    buf + pos, bufsz - pos, 0);
 923                                 pos += strlen(buf + pos);
 924                                 if (bufsz - pos > 0)
 925                                         buf[pos++] = '\n';
 926                         }
 927                 }
 928         }
 929
 930         pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
 931         pos += scnprintf(buf + pos, bufsz - pos,
 932                         "read: %u, write: %u\n",
 933                          rxq->read, rxq->write);
 934
 935         if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
 936                 ptr = priv->rx_traffic;
 937                 pos += scnprintf(buf + pos, bufsz - pos,
 938                                 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
 939                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 940                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 941                              entry++,  ofs += 16) {
 942                                 pos += scnprintf(buf + pos, bufsz - pos,
 943                                                 "0x%.4x ", ofs);
 944                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 945                                                    buf + pos, bufsz - pos, 0);
 946                                 pos += strlen(buf + pos);
 947                                 if (bufsz - pos > 0)
 948                                         buf[pos++] = '\n';
 949                         }
 950                 }
 951         }
 952
 953         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 954         kfree(buf);
 955         return ret;
 956 }
 957
 958 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
 959                                          const char __user *user_buf,
 960                                          size_t count, loff_t *ppos)
 961 {
 962         struct iwl_priv *priv = file->private_data;
 963         char buf[8];
 964         int buf_size;
 965         int traffic_log;
 966
 967         memset(buf, 0, sizeof(buf));
 968         buf_size = min(count, sizeof(buf) -  1);
 969         if (copy_from_user(buf, user_buf, buf_size))
 970                 return -EFAULT;
 971         if (sscanf(buf, "%d", &traffic_log) != 1)
 972                 return -EFAULT;
 973         if (traffic_log == 0)
 974                 iwl_reset_traffic_log(priv);
 975
 976         return count;
 977 }
 978
 979 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
 980                                                 char __user *user_buf,
 981                                                 size_t count, loff_t *ppos) {
 982
 983         struct iwl_priv *priv = file->private_data;
 984         struct iwl_tx_queue *txq;
 985         struct iwl_queue *q;
 986         char *buf;
 987         int pos = 0;
 988         int cnt;
 989         int ret;
 990         const size_t bufsz = sizeof(char) * 64 * priv->cfg->num_of_queues;
 991
 992         if (!priv->txq) {
 993                 IWL_ERR(priv, "txq not ready\n");
 994                 return -EAGAIN;
 995         }
 996         buf = kzalloc(bufsz, GFP_KERNEL);
 997         if (!buf)
 998                 return -ENOMEM;
 999
1000         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
1001                 txq = &priv->txq[cnt];
1002                 q = &txq->q;
1003                 pos += scnprintf(buf + pos, bufsz - pos,
1004                                 "hwq %.2d: read=%u write=%u stop=%d"
1005                                 " swq_id=%#.2x (ac %d/hwq %d)\n",
1006                                 cnt, q->read_ptr, q->write_ptr,
1007                                 !!test_bit(cnt, priv->queue_stopped),
1008                                 txq->swq_id,
1009                                 txq->swq_id & 0x80 ? txq->swq_id & 3 :
1010                                 txq->swq_id,
1011                                 txq->swq_id & 0x80 ? (txq->swq_id >> 2) &
1012                                 0x1f : txq->swq_id);
1013                 if (cnt >= 4)
1014                         continue;
1015                 /* for the ACs, display the stop count too */
1016                 pos += scnprintf(buf + pos, bufsz - pos,
1017                                 "        stop-count: %d\n",
1018                                 atomic_read(&priv->queue_stop_count[cnt]));
1019         }
1020         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1021         kfree(buf);
1022         return ret;
1023 }
1024
1025 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
1026                                                 char __user *user_buf,
1027                                                 size_t count, loff_t *ppos) {
1028
1029         struct iwl_priv *priv = file->private_data;
1030         struct iwl_rx_queue *rxq = &priv->rxq;
1031         char buf[256];
1032         int pos = 0;
1033         const size_t bufsz = sizeof(buf);
1034
1035         pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
1036                                                 rxq->read);
1037         pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
1038                                                 rxq->write);
1039         pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1040                                                 rxq->free_count);
1041         pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1042                          le16_to_cpu(rxq->rb_stts->closed_rb_num) &  0x0FFF);
1043         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1044 }
1045
1046 static int iwl_dbgfs_statistics_flag(struct iwl_priv *priv, char *buf,
1047                                      int bufsz)
1048 {
1049         int p = 0;
1050
1051         p += scnprintf(buf + p, bufsz - p,
1052                 "Statistics Flag(0x%X):\n",
1053                 le32_to_cpu(priv->statistics.flag));
1054         if (le32_to_cpu(priv->statistics.flag) & UCODE_STATISTICS_CLEAR_MSK)
1055                 p += scnprintf(buf + p, bufsz - p,
1056                 "\tStatistics have been cleared\n");
1057         p += scnprintf(buf + p, bufsz - p,
1058                 "\tOperational Frequency: %s\n",
1059                 (le32_to_cpu(priv->statistics.flag) &
1060                 UCODE_STATISTICS_FREQUENCY_MSK)
1061                  ? "2.4 GHz" : "5.2 GHz");
1062         p += scnprintf(buf + p, bufsz - p,
1063                 "\tTGj Narrow Band: %s\n",
1064                 (le32_to_cpu(priv->statistics.flag) &
1065                 UCODE_STATISTICS_NARROW_BAND_MSK)
1066                  ? "enabled" : "disabled");
1067         return p;
1068 }
1069
1070 static const char ucode_stats_header[] =
1071         "%-32s     current  acumulative       delta         max\n";
1072 static const char ucode_stats_short_format[] =
1073         "  %-30s %10u\n";
1074 static const char ucode_stats_format[] =
1075         "  %-30s %10u  %10u  %10u  %10u\n";
1076
1077 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1078                                         char __user *user_buf,
1079                                         size_t count, loff_t *ppos)
1080 {
1081         struct iwl_priv *priv = file->private_data;
1082         int pos = 0;
1083         char *buf;
1084         int bufsz = sizeof(struct statistics_rx_phy) * 40 +
1085                 sizeof(struct statistics_rx_non_phy) * 40 +
1086                 sizeof(struct statistics_rx_ht_phy) * 40 + 400;
1087         ssize_t ret;
1088         struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
1089         struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
1090         struct statistics_rx_non_phy *general, *accum_general;
1091         struct statistics_rx_non_phy *delta_general, *max_general;
1092         struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
1093
1094         if (!iwl_is_alive(priv))
1095                 return -EAGAIN;
1096
1097         buf = kzalloc(bufsz, GFP_KERNEL);
1098         if (!buf) {
1099                 IWL_ERR(priv, "Can not allocate Buffer\n");
1100                 return -ENOMEM;
1101         }
1102
1103         /* the statistic information display here is based on
1104          * the last statistics notification from uCode
1105          * might not reflect the current uCode activity
1106          */
1107         ofdm = &priv->statistics.rx.ofdm;
1108         cck = &priv->statistics.rx.cck;
1109         general = &priv->statistics.rx.general;
1110         ht = &priv->statistics.rx.ofdm_ht;
1111         accum_ofdm = &priv->accum_statistics.rx.ofdm;
1112         accum_cck = &priv->accum_statistics.rx.cck;
1113         accum_general = &priv->accum_statistics.rx.general;
1114         accum_ht = &priv->accum_statistics.rx.ofdm_ht;
1115         delta_ofdm = &priv->delta_statistics.rx.ofdm;
1116         delta_cck = &priv->delta_statistics.rx.cck;
1117         delta_general = &priv->delta_statistics.rx.general;
1118         delta_ht = &priv->delta_statistics.rx.ofdm_ht;
1119         max_ofdm = &priv->max_delta.rx.ofdm;
1120         max_cck = &priv->max_delta.rx.cck;
1121         max_general = &priv->max_delta.rx.general;
1122         max_ht = &priv->max_delta.rx.ofdm_ht;
1123
1124         pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1125         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1126                          "Statistics_Rx - OFDM:");
1127         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1128                          "ina_cnt:", le32_to_cpu(ofdm->ina_cnt),
1129                          accum_ofdm->ina_cnt,
1130                          delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
1131         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1132                          "fina_cnt:",
1133                          le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
1134                          delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
1135         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1136                          "plcp_err:",
1137                          le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
1138                          delta_ofdm->plcp_err, max_ofdm->plcp_err);
1139         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1140                          "crc32_err:",
1141                          le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
1142                          delta_ofdm->crc32_err, max_ofdm->crc32_err);
1143         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1144                          "overrun_err:",
1145                          le32_to_cpu(ofdm->overrun_err),
1146                          accum_ofdm->overrun_err,
1147                          delta_ofdm->overrun_err, max_ofdm->overrun_err);
1148         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1149                          "early_overrun_err:",
1150                          le32_to_cpu(ofdm->early_overrun_err),
1151                          accum_ofdm->early_overrun_err,
1152                          delta_ofdm->early_overrun_err,
1153                          max_ofdm->early_overrun_err);
1154         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1155                          "crc32_good:",
1156                          le32_to_cpu(ofdm->crc32_good),
1157                          accum_ofdm->crc32_good,
1158                          delta_ofdm->crc32_good, max_ofdm->crc32_good);
1159         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1160                          "false_alarm_cnt:",
1161                          le32_to_cpu(ofdm->false_alarm_cnt),
1162                          accum_ofdm->false_alarm_cnt,
1163                          delta_ofdm->false_alarm_cnt,
1164                          max_ofdm->false_alarm_cnt);
1165         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1166                          "fina_sync_err_cnt:",
1167                          le32_to_cpu(ofdm->fina_sync_err_cnt),
1168                          accum_ofdm->fina_sync_err_cnt,
1169                          delta_ofdm->fina_sync_err_cnt,
1170                          max_ofdm->fina_sync_err_cnt);
1171         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1172                          "sfd_timeout:",
1173                          le32_to_cpu(ofdm->sfd_timeout),
1174                          accum_ofdm->sfd_timeout,
1175                          delta_ofdm->sfd_timeout,
1176                          max_ofdm->sfd_timeout);
1177         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1178                          "fina_timeout:",
1179                          le32_to_cpu(ofdm->fina_timeout),
1180                          accum_ofdm->fina_timeout,
1181                          delta_ofdm->fina_timeout,
1182                          max_ofdm->fina_timeout);
1183         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1184                          "unresponded_rts:",
1185                          le32_to_cpu(ofdm->unresponded_rts),
1186                          accum_ofdm->unresponded_rts,
1187                          delta_ofdm->unresponded_rts,
1188                          max_ofdm->unresponded_rts);
1189         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1190                         "rxe_frame_lmt_ovrun:",
1191                          le32_to_cpu(ofdm->rxe_frame_limit_overrun),
1192                          accum_ofdm->rxe_frame_limit_overrun,
1193                          delta_ofdm->rxe_frame_limit_overrun,
1194                          max_ofdm->rxe_frame_limit_overrun);
1195         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1196                          "sent_ack_cnt:",
1197                          le32_to_cpu(ofdm->sent_ack_cnt),
1198                          accum_ofdm->sent_ack_cnt,
1199                          delta_ofdm->sent_ack_cnt,
1200                          max_ofdm->sent_ack_cnt);
1201         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1202                          "sent_cts_cnt:",
1203                          le32_to_cpu(ofdm->sent_cts_cnt),
1204                          accum_ofdm->sent_cts_cnt,
1205                          delta_ofdm->sent_cts_cnt, max_ofdm->sent_cts_cnt);
1206         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1207                          "sent_ba_rsp_cnt:",
1208                          le32_to_cpu(ofdm->sent_ba_rsp_cnt),
1209                          accum_ofdm->sent_ba_rsp_cnt,
1210                          delta_ofdm->sent_ba_rsp_cnt,
1211                          max_ofdm->sent_ba_rsp_cnt);
1212         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1213                          "dsp_self_kill:",
1214                          le32_to_cpu(ofdm->dsp_self_kill),
1215                          accum_ofdm->dsp_self_kill,
1216                          delta_ofdm->dsp_self_kill,
1217                          max_ofdm->dsp_self_kill);
1218         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1219                          "mh_format_err:",
1220                          le32_to_cpu(ofdm->mh_format_err),
1221                          accum_ofdm->mh_format_err,
1222                          delta_ofdm->mh_format_err,
1223                          max_ofdm->mh_format_err);
1224         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1225                          "re_acq_main_rssi_sum:",
1226                          le32_to_cpu(ofdm->re_acq_main_rssi_sum),
1227                          accum_ofdm->re_acq_main_rssi_sum,
1228                          delta_ofdm->re_acq_main_rssi_sum,
1229                         max_ofdm->re_acq_main_rssi_sum);
1230
1231         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1232                          "Statistics_Rx - CCK:");
1233         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1234                          "ina_cnt:",
1235                          le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
1236                          delta_cck->ina_cnt, max_cck->ina_cnt);
1237         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1238                          "fina_cnt:",
1239                          le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
1240                          delta_cck->fina_cnt, max_cck->fina_cnt);
1241         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1242                          "plcp_err:",
1243                          le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
1244                          delta_cck->plcp_err, max_cck->plcp_err);
1245         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1246                          "crc32_err:",
1247                          le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
1248                          delta_cck->crc32_err, max_cck->crc32_err);
1249         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1250                          "overrun_err:",
1251                          le32_to_cpu(cck->overrun_err),
1252                          accum_cck->overrun_err,
1253                          delta_cck->overrun_err, max_cck->overrun_err);
1254         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1255                          "early_overrun_err:",
1256                          le32_to_cpu(cck->early_overrun_err),
1257                          accum_cck->early_overrun_err,
1258                          delta_cck->early_overrun_err,
1259                          max_cck->early_overrun_err);
1260         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1261                          "crc32_good:",
1262                          le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
1263                          delta_cck->crc32_good,
1264                          max_cck->crc32_good);
1265         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1266                          "false_alarm_cnt:",
1267                          le32_to_cpu(cck->false_alarm_cnt),
1268                          accum_cck->false_alarm_cnt,
1269                          delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
1270         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1271                          "fina_sync_err_cnt:",
1272                          le32_to_cpu(cck->fina_sync_err_cnt),
1273                          accum_cck->fina_sync_err_cnt,
1274                          delta_cck->fina_sync_err_cnt,
1275                          max_cck->fina_sync_err_cnt);
1276         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1277                          "sfd_timeout:",
1278                          le32_to_cpu(cck->sfd_timeout),
1279                          accum_cck->sfd_timeout,
1280                          delta_cck->sfd_timeout, max_cck->sfd_timeout);
1281         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1282                          "fina_timeout:",
1283                          le32_to_cpu(cck->fina_timeout),
1284                          accum_cck->fina_timeout,
1285                          delta_cck->fina_timeout, max_cck->fina_timeout);
1286         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1287                          "unresponded_rts:",
1288                          le32_to_cpu(cck->unresponded_rts),
1289                          accum_cck->unresponded_rts,
1290                          delta_cck->unresponded_rts,
1291                          max_cck->unresponded_rts);
1292         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1293                         "rxe_frame_lmt_ovrun:",
1294                          le32_to_cpu(cck->rxe_frame_limit_overrun),
1295                          accum_cck->rxe_frame_limit_overrun,
1296                          delta_cck->rxe_frame_limit_overrun,
1297                          max_cck->rxe_frame_limit_overrun);
1298         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1299                          "sent_ack_cnt:",
1300                          le32_to_cpu(cck->sent_ack_cnt),
1301                          accum_cck->sent_ack_cnt,
1302                          delta_cck->sent_ack_cnt,
1303                          max_cck->sent_ack_cnt);
1304         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1305                          "sent_cts_cnt:",
1306                          le32_to_cpu(cck->sent_cts_cnt),
1307                          accum_cck->sent_cts_cnt,
1308                          delta_cck->sent_cts_cnt,
1309                          max_cck->sent_cts_cnt);
1310         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1311                          "sent_ba_rsp_cnt:",
1312                          le32_to_cpu(cck->sent_ba_rsp_cnt),
1313                          accum_cck->sent_ba_rsp_cnt,
1314                          delta_cck->sent_ba_rsp_cnt,
1315                          max_cck->sent_ba_rsp_cnt);
1316         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1317                          "dsp_self_kill:",
1318                          le32_to_cpu(cck->dsp_self_kill),
1319                          accum_cck->dsp_self_kill,
1320                          delta_cck->dsp_self_kill,
1321                          max_cck->dsp_self_kill);
1322         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1323                          "mh_format_err:",
1324                          le32_to_cpu(cck->mh_format_err),
1325                          accum_cck->mh_format_err,
1326                          delta_cck->mh_format_err, max_cck->mh_format_err);
1327         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1328                          "re_acq_main_rssi_sum:",
1329                          le32_to_cpu(cck->re_acq_main_rssi_sum),
1330                          accum_cck->re_acq_main_rssi_sum,
1331                          delta_cck->re_acq_main_rssi_sum,
1332                          max_cck->re_acq_main_rssi_sum);
1333
1334         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1335                         "Statistics_Rx - GENERAL:");
1336         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1337                          "bogus_cts:",
1338                          le32_to_cpu(general->bogus_cts),
1339                          accum_general->bogus_cts,
1340                          delta_general->bogus_cts, max_general->bogus_cts);
1341         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1342                          "bogus_ack:",
1343                          le32_to_cpu(general->bogus_ack),
1344                          accum_general->bogus_ack,
1345                          delta_general->bogus_ack, max_general->bogus_ack);
1346         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1347                          "non_bssid_frames:",
1348                          le32_to_cpu(general->non_bssid_frames),
1349                          accum_general->non_bssid_frames,
1350                          delta_general->non_bssid_frames,
1351                          max_general->non_bssid_frames);
1352         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1353                          "filtered_frames:",
1354                          le32_to_cpu(general->filtered_frames),
1355                          accum_general->filtered_frames,
1356                          delta_general->filtered_frames,
1357                          max_general->filtered_frames);
1358         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1359                          "non_channel_beacons:",
1360                          le32_to_cpu(general->non_channel_beacons),
1361                          accum_general->non_channel_beacons,
1362                          delta_general->non_channel_beacons,
1363                          max_general->non_channel_beacons);
1364         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1365                          "channel_beacons:",
1366                          le32_to_cpu(general->channel_beacons),
1367                          accum_general->channel_beacons,
1368                          delta_general->channel_beacons,
1369                          max_general->channel_beacons);
1370         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1371                          "num_missed_bcon:",
1372                          le32_to_cpu(general->num_missed_bcon),
1373                          accum_general->num_missed_bcon,
1374                          delta_general->num_missed_bcon,
1375                          max_general->num_missed_bcon);
1376         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1377                         "adc_rx_saturation_time:",
1378                          le32_to_cpu(general->adc_rx_saturation_time),
1379                          accum_general->adc_rx_saturation_time,
1380                          delta_general->adc_rx_saturation_time,
1381                          max_general->adc_rx_saturation_time);
1382         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1383                         "ina_detect_search_tm:",
1384                          le32_to_cpu(general->ina_detection_search_time),
1385                          accum_general->ina_detection_search_time,
1386                          delta_general->ina_detection_search_time,
1387                          max_general->ina_detection_search_time);
1388         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1389                          "beacon_silence_rssi_a:",
1390                          le32_to_cpu(general->beacon_silence_rssi_a),
1391                          accum_general->beacon_silence_rssi_a,
1392                          delta_general->beacon_silence_rssi_a,
1393                          max_general->beacon_silence_rssi_a);
1394         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1395                          "beacon_silence_rssi_b:",
1396                          le32_to_cpu(general->beacon_silence_rssi_b),
1397                          accum_general->beacon_silence_rssi_b,
1398                          delta_general->beacon_silence_rssi_b,
1399                          max_general->beacon_silence_rssi_b);
1400         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1401                          "beacon_silence_rssi_c:",
1402                          le32_to_cpu(general->beacon_silence_rssi_c),
1403                          accum_general->beacon_silence_rssi_c,
1404                          delta_general->beacon_silence_rssi_c,
1405                          max_general->beacon_silence_rssi_c);
1406         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1407                         "interference_data_flag:",
1408                          le32_to_cpu(general->interference_data_flag),
1409                          accum_general->interference_data_flag,
1410                          delta_general->interference_data_flag,
1411                          max_general->interference_data_flag);
1412         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1413                          "channel_load:",
1414                          le32_to_cpu(general->channel_load),
1415                          accum_general->channel_load,
1416                          delta_general->channel_load,
1417                          max_general->channel_load);
1418         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1419                          "dsp_false_alarms:",
1420                          le32_to_cpu(general->dsp_false_alarms),
1421                          accum_general->dsp_false_alarms,
1422                          delta_general->dsp_false_alarms,
1423                          max_general->dsp_false_alarms);
1424         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1425                          "beacon_rssi_a:",
1426                          le32_to_cpu(general->beacon_rssi_a),
1427                          accum_general->beacon_rssi_a,
1428                          delta_general->beacon_rssi_a,
1429                          max_general->beacon_rssi_a);
1430         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1431                          "beacon_rssi_b:",
1432                          le32_to_cpu(general->beacon_rssi_b),
1433                          accum_general->beacon_rssi_b,
1434                          delta_general->beacon_rssi_b,
1435                          max_general->beacon_rssi_b);
1436         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1437                          "beacon_rssi_c:",
1438                          le32_to_cpu(general->beacon_rssi_c),
1439                          accum_general->beacon_rssi_c,
1440                          delta_general->beacon_rssi_c,
1441                          max_general->beacon_rssi_c);
1442         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1443                          "beacon_energy_a:",
1444                          le32_to_cpu(general->beacon_energy_a),
1445                          accum_general->beacon_energy_a,
1446                          delta_general->beacon_energy_a,
1447                          max_general->beacon_energy_a);
1448         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1449                          "beacon_energy_b:",
1450                          le32_to_cpu(general->beacon_energy_b),
1451                          accum_general->beacon_energy_b,
1452                          delta_general->beacon_energy_b,
1453                          max_general->beacon_energy_b);
1454         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1455                          "beacon_energy_c:",
1456                          le32_to_cpu(general->beacon_energy_c),
1457                          accum_general->beacon_energy_c,
1458                          delta_general->beacon_energy_c,
1459                          max_general->beacon_energy_c);
1460
1461         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - OFDM_HT:\n");
1462         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1463                         "Statistics_Rx - OFDM_HT:");
1464         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1465                          "plcp_err:",
1466                          le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1467                          delta_ht->plcp_err, max_ht->plcp_err);
1468         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1469                          "overrun_err:",
1470                          le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1471                          delta_ht->overrun_err, max_ht->overrun_err);
1472         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1473                          "early_overrun_err:",
1474                          le32_to_cpu(ht->early_overrun_err),
1475                          accum_ht->early_overrun_err,
1476                          delta_ht->early_overrun_err,
1477                          max_ht->early_overrun_err);
1478         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1479                          "crc32_good:",
1480                          le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1481                          delta_ht->crc32_good, max_ht->crc32_good);
1482         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1483                          "crc32_err:",
1484                          le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1485                          delta_ht->crc32_err, max_ht->crc32_err);
1486         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1487                          "mh_format_err:",
1488                          le32_to_cpu(ht->mh_format_err),
1489                          accum_ht->mh_format_err,
1490                          delta_ht->mh_format_err, max_ht->mh_format_err);
1491         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1492                          "agg_crc32_good:",
1493                          le32_to_cpu(ht->agg_crc32_good),
1494                          accum_ht->agg_crc32_good,
1495                          delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1496         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1497                          "agg_mpdu_cnt:",
1498                          le32_to_cpu(ht->agg_mpdu_cnt),
1499                          accum_ht->agg_mpdu_cnt,
1500                          delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1501         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1502                          "agg_cnt:",
1503                          le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1504                          delta_ht->agg_cnt, max_ht->agg_cnt);
1505         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1506                          "unsupport_mcs:",
1507                          le32_to_cpu(ht->unsupport_mcs),
1508                          accum_ht->unsupport_mcs,
1509                          delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1510
1511         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1512         kfree(buf);
1513         return ret;
1514 }
1515
1516 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1517                                         char __user *user_buf,
1518                                         size_t count, loff_t *ppos)
1519 {
1520         struct iwl_priv *priv = file->private_data;
1521         int pos = 0;
1522         char *buf;
1523         int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1524         ssize_t ret;
1525         struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1526
1527         if (!iwl_is_alive(priv))
1528                 return -EAGAIN;
1529
1530         buf = kzalloc(bufsz, GFP_KERNEL);
1531         if (!buf) {
1532                 IWL_ERR(priv, "Can not allocate Buffer\n");
1533                 return -ENOMEM;
1534         }
1535
1536         /* the statistic information display here is based on
1537          * the last statistics notification from uCode
1538          * might not reflect the current uCode activity
1539          */
1540         tx = &priv->statistics.tx;
1541         accum_tx = &priv->accum_statistics.tx;
1542         delta_tx = &priv->delta_statistics.tx;
1543         max_tx = &priv->max_delta.tx;
1544         pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1545         pos += scnprintf(buf + pos, bufsz - pos,  ucode_stats_header,
1546                         "Statistics_Tx:");
1547         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1548                          "preamble:",
1549                          le32_to_cpu(tx->preamble_cnt),
1550                          accum_tx->preamble_cnt,
1551                          delta_tx->preamble_cnt, max_tx->preamble_cnt);
1552         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1553                          "rx_detected_cnt:",
1554                          le32_to_cpu(tx->rx_detected_cnt),
1555                          accum_tx->rx_detected_cnt,
1556                          delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1557         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1558                          "bt_prio_defer_cnt:",
1559                          le32_to_cpu(tx->bt_prio_defer_cnt),
1560                          accum_tx->bt_prio_defer_cnt,
1561                          delta_tx->bt_prio_defer_cnt,
1562                          max_tx->bt_prio_defer_cnt);
1563         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1564                          "bt_prio_kill_cnt:",
1565                          le32_to_cpu(tx->bt_prio_kill_cnt),
1566                          accum_tx->bt_prio_kill_cnt,
1567                          delta_tx->bt_prio_kill_cnt,
1568                          max_tx->bt_prio_kill_cnt);
1569         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1570                          "few_bytes_cnt:",
1571                          le32_to_cpu(tx->few_bytes_cnt),
1572                          accum_tx->few_bytes_cnt,
1573                          delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1574         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1575                          "cts_timeout:",
1576                          le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1577                          delta_tx->cts_timeout, max_tx->cts_timeout);
1578         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1579                          "ack_timeout:",
1580                          le32_to_cpu(tx->ack_timeout),
1581                          accum_tx->ack_timeout,
1582                          delta_tx->ack_timeout, max_tx->ack_timeout);
1583         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1584                          "expected_ack_cnt:",
1585                          le32_to_cpu(tx->expected_ack_cnt),
1586                          accum_tx->expected_ack_cnt,
1587                          delta_tx->expected_ack_cnt,
1588                          max_tx->expected_ack_cnt);
1589         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1590                          "actual_ack_cnt:",
1591                          le32_to_cpu(tx->actual_ack_cnt),
1592                          accum_tx->actual_ack_cnt,
1593                          delta_tx->actual_ack_cnt,
1594                          max_tx->actual_ack_cnt);
1595         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1596                          "dump_msdu_cnt:",
1597                          le32_to_cpu(tx->dump_msdu_cnt),
1598                          accum_tx->dump_msdu_cnt,
1599                          delta_tx->dump_msdu_cnt,
1600                          max_tx->dump_msdu_cnt);
1601         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1602                          "abort_nxt_frame_mismatch:",
1603                          le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1604                          accum_tx->burst_abort_next_frame_mismatch_cnt,
1605                          delta_tx->burst_abort_next_frame_mismatch_cnt,
1606                          max_tx->burst_abort_next_frame_mismatch_cnt);
1607         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1608                          "abort_missing_nxt_frame:",
1609                          le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1610                          accum_tx->burst_abort_missing_next_frame_cnt,
1611                          delta_tx->burst_abort_missing_next_frame_cnt,
1612                          max_tx->burst_abort_missing_next_frame_cnt);
1613         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1614                          "cts_timeout_collision:",
1615                          le32_to_cpu(tx->cts_timeout_collision),
1616                          accum_tx->cts_timeout_collision,
1617                          delta_tx->cts_timeout_collision,
1618                          max_tx->cts_timeout_collision);
1619         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1620                         "ack_ba_timeout_collision:",
1621                          le32_to_cpu(tx->ack_or_ba_timeout_collision),
1622                          accum_tx->ack_or_ba_timeout_collision,
1623                          delta_tx->ack_or_ba_timeout_collision,
1624                          max_tx->ack_or_ba_timeout_collision);
1625         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1626                          "agg ba_timeout:",
1627                          le32_to_cpu(tx->agg.ba_timeout),
1628                          accum_tx->agg.ba_timeout,
1629                          delta_tx->agg.ba_timeout,
1630                          max_tx->agg.ba_timeout);
1631         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1632                         "agg ba_resched_frames:",
1633                          le32_to_cpu(tx->agg.ba_reschedule_frames),
1634                          accum_tx->agg.ba_reschedule_frames,
1635                          delta_tx->agg.ba_reschedule_frames,
1636                          max_tx->agg.ba_reschedule_frames);
1637         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1638                         "agg scd_query_agg_frame:",
1639                          le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1640                          accum_tx->agg.scd_query_agg_frame_cnt,
1641                          delta_tx->agg.scd_query_agg_frame_cnt,
1642                          max_tx->agg.scd_query_agg_frame_cnt);
1643         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1644                          "agg scd_query_no_agg:",
1645                          le32_to_cpu(tx->agg.scd_query_no_agg),
1646                          accum_tx->agg.scd_query_no_agg,
1647                          delta_tx->agg.scd_query_no_agg,
1648                          max_tx->agg.scd_query_no_agg);
1649         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1650                          "agg scd_query_agg:",
1651                          le32_to_cpu(tx->agg.scd_query_agg),
1652                          accum_tx->agg.scd_query_agg,
1653                          delta_tx->agg.scd_query_agg,
1654                          max_tx->agg.scd_query_agg);
1655         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1656                         "agg scd_query_mismatch:",
1657                          le32_to_cpu(tx->agg.scd_query_mismatch),
1658                          accum_tx->agg.scd_query_mismatch,
1659                          delta_tx->agg.scd_query_mismatch,
1660                          max_tx->agg.scd_query_mismatch);
1661         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1662                          "agg frame_not_ready:",
1663                          le32_to_cpu(tx->agg.frame_not_ready),
1664                          accum_tx->agg.frame_not_ready,
1665                          delta_tx->agg.frame_not_ready,
1666                          max_tx->agg.frame_not_ready);
1667         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1668                          "agg underrun:",
1669                          le32_to_cpu(tx->agg.underrun),
1670                          accum_tx->agg.underrun,
1671                          delta_tx->agg.underrun, max_tx->agg.underrun);
1672         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1673                          "agg bt_prio_kill:",
1674                          le32_to_cpu(tx->agg.bt_prio_kill),
1675                          accum_tx->agg.bt_prio_kill,
1676                          delta_tx->agg.bt_prio_kill,
1677                          max_tx->agg.bt_prio_kill);
1678         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1679                          "agg rx_ba_rsp_cnt:",
1680                          le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1681                          accum_tx->agg.rx_ba_rsp_cnt,
1682                          delta_tx->agg.rx_ba_rsp_cnt,
1683                          max_tx->agg.rx_ba_rsp_cnt);
1684
1685         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1686         kfree(buf);
1687         return ret;
1688 }
1689
1690 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1691                                         char __user *user_buf,
1692                                         size_t count, loff_t *ppos)
1693 {
1694         struct iwl_priv *priv = file->private_data;
1695         int pos = 0;
1696         char *buf;
1697         int bufsz = sizeof(struct statistics_general) * 10 + 300;
1698         ssize_t ret;
1699         struct statistics_general *general, *accum_general;
1700         struct statistics_general *delta_general, *max_general;
1701         struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1702         struct statistics_div *div, *accum_div, *delta_div, *max_div;
1703
1704         if (!iwl_is_alive(priv))
1705                 return -EAGAIN;
1706
1707         buf = kzalloc(bufsz, GFP_KERNEL);
1708         if (!buf) {
1709                 IWL_ERR(priv, "Can not allocate Buffer\n");
1710                 return -ENOMEM;
1711         }
1712
1713         /* the statistic information display here is based on
1714          * the last statistics notification from uCode
1715          * might not reflect the current uCode activity
1716          */
1717         general = &priv->statistics.general;
1718         dbg = &priv->statistics.general.dbg;
1719         div = &priv->statistics.general.div;
1720         accum_general = &priv->accum_statistics.general;
1721         delta_general = &priv->delta_statistics.general;
1722         max_general = &priv->max_delta.general;
1723         accum_dbg = &priv->accum_statistics.general.dbg;
1724         delta_dbg = &priv->delta_statistics.general.dbg;
1725         max_dbg = &priv->max_delta.general.dbg;
1726         accum_div = &priv->accum_statistics.general.div;
1727         delta_div = &priv->delta_statistics.general.div;
1728         max_div = &priv->max_delta.general.div;
1729         pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1730         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1731                         "Statistics_General:");
1732         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_short_format,
1733                          "temperature:",
1734                          le32_to_cpu(general->temperature));
1735         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_short_format,
1736                          "temperature_m:",
1737                          le32_to_cpu(general->temperature_m));
1738         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1739                          "burst_check:",
1740                          le32_to_cpu(dbg->burst_check),
1741                          accum_dbg->burst_check,
1742                          delta_dbg->burst_check, max_dbg->burst_check);
1743         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1744                          "burst_count:",
1745                          le32_to_cpu(dbg->burst_count),
1746                          accum_dbg->burst_count,
1747                          delta_dbg->burst_count, max_dbg->burst_count);
1748         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1749                          "sleep_time:",
1750                          le32_to_cpu(general->sleep_time),
1751                          accum_general->sleep_time,
1752                          delta_general->sleep_time, max_general->sleep_time);
1753         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1754                          "slots_out:",
1755                          le32_to_cpu(general->slots_out),
1756                          accum_general->slots_out,
1757                          delta_general->slots_out, max_general->slots_out);
1758         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1759                          "slots_idle:",
1760                          le32_to_cpu(general->slots_idle),
1761                          accum_general->slots_idle,
1762                          delta_general->slots_idle, max_general->slots_idle);
1763         pos += scnprintf(buf + pos, bufsz - pos, "ttl_timestamp:\t\t\t%u\n",
1764                          le32_to_cpu(general->ttl_timestamp));
1765         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1766                          "tx_on_a:",
1767                          le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1768                          delta_div->tx_on_a, max_div->tx_on_a);
1769         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1770                          "tx_on_b:",
1771                          le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1772                          delta_div->tx_on_b, max_div->tx_on_b);
1773         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1774                          "exec_time:",
1775                          le32_to_cpu(div->exec_time), accum_div->exec_time,
1776                          delta_div->exec_time, max_div->exec_time);
1777         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1778                          "probe_time:",
1779                          le32_to_cpu(div->probe_time), accum_div->probe_time,
1780                          delta_div->probe_time, max_div->probe_time);
1781         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1782                          "rx_enable_counter:",
1783                          le32_to_cpu(general->rx_enable_counter),
1784                          accum_general->rx_enable_counter,
1785                          delta_general->rx_enable_counter,
1786                          max_general->rx_enable_counter);
1787         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1788                          "num_of_sos_states:",
1789                          le32_to_cpu(general->num_of_sos_states),
1790                          accum_general->num_of_sos_states,
1791                          delta_general->num_of_sos_states,
1792                          max_general->num_of_sos_states);
1793         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1794         kfree(buf);
1795         return ret;
1796 }
1797
1798 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1799                                         char __user *user_buf,
1800                                         size_t count, loff_t *ppos) {
1801
1802         struct iwl_priv *priv = file->private_data;
1803         int pos = 0;
1804         int cnt = 0;
1805         char *buf;
1806         int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1807         ssize_t ret;
1808         struct iwl_sensitivity_data *data;
1809
1810         data = &priv->sensitivity_data;
1811         buf = kzalloc(bufsz, GFP_KERNEL);
1812         if (!buf) {
1813                 IWL_ERR(priv, "Can not allocate Buffer\n");
1814                 return -ENOMEM;
1815         }
1816
1817         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1818                         data->auto_corr_ofdm);
1819         pos += scnprintf(buf + pos, bufsz - pos,
1820                         "auto_corr_ofdm_mrc:\t\t %u\n",
1821                         data->auto_corr_ofdm_mrc);
1822         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1823                         data->auto_corr_ofdm_x1);
1824         pos += scnprintf(buf + pos, bufsz - pos,
1825                         "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1826                         data->auto_corr_ofdm_mrc_x1);
1827         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1828                         data->auto_corr_cck);
1829         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1830                         data->auto_corr_cck_mrc);
1831         pos += scnprintf(buf + pos, bufsz - pos,
1832                         "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1833                         data->last_bad_plcp_cnt_ofdm);
1834         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1835                         data->last_fa_cnt_ofdm);
1836         pos += scnprintf(buf + pos, bufsz - pos,
1837                         "last_bad_plcp_cnt_cck:\t\t %u\n",
1838                         data->last_bad_plcp_cnt_cck);
1839         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1840                         data->last_fa_cnt_cck);
1841         pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1842                         data->nrg_curr_state);
1843         pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1844                         data->nrg_prev_state);
1845         pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1846         for (cnt = 0; cnt < 10; cnt++) {
1847                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1848                                 data->nrg_value[cnt]);
1849         }
1850         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1851         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1852         for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1853                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1854                                 data->nrg_silence_rssi[cnt]);
1855         }
1856         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1857         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1858                         data->nrg_silence_ref);
1859         pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1860                         data->nrg_energy_idx);
1861         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1862                         data->nrg_silence_idx);
1863         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1864                         data->nrg_th_cck);
1865         pos += scnprintf(buf + pos, bufsz - pos,
1866                         "nrg_auto_corr_silence_diff:\t %u\n",
1867                         data->nrg_auto_corr_silence_diff);
1868         pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1869                         data->num_in_cck_no_fa);
1870         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1871                         data->nrg_th_ofdm);
1872
1873         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1874         kfree(buf);
1875         return ret;
1876 }
1877
1878
1879 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1880                                         char __user *user_buf,
1881                                         size_t count, loff_t *ppos) {
1882
1883         struct iwl_priv *priv = file->private_data;
1884         int pos = 0;
1885         int cnt = 0;
1886         char *buf;
1887         int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1888         ssize_t ret;
1889         struct iwl_chain_noise_data *data;
1890
1891         data = &priv->chain_noise_data;
1892         buf = kzalloc(bufsz, GFP_KERNEL);
1893         if (!buf) {
1894                 IWL_ERR(priv, "Can not allocate Buffer\n");
1895                 return -ENOMEM;
1896         }
1897
1898         pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1899                         data->active_chains);
1900         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1901                         data->chain_noise_a);
1902         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1903                         data->chain_noise_b);
1904         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1905                         data->chain_noise_c);
1906         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1907                         data->chain_signal_a);
1908         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1909                         data->chain_signal_b);
1910         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1911                         data->chain_signal_c);
1912         pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1913                         data->beacon_count);
1914
1915         pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1916         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1917                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1918                                 data->disconn_array[cnt]);
1919         }
1920         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1921         pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1922         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1923                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1924                                 data->delta_gain_code[cnt]);
1925         }
1926         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1927         pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1928                         data->radio_write);
1929         pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1930                         data->state);
1931
1932         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1933         kfree(buf);
1934         return ret;
1935 }
1936
1937 static ssize_t iwl_dbgfs_tx_power_read(struct file *file,
1938                                         char __user *user_buf,
1939                                         size_t count, loff_t *ppos) {
1940
1941         struct iwl_priv *priv = file->private_data;
1942         char buf[128];
1943         int pos = 0;
1944         const size_t bufsz = sizeof(buf);
1945         struct statistics_tx *tx;
1946
1947         if (!iwl_is_alive(priv))
1948                 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
1949         else {
1950                 tx = &priv->statistics.tx;
1951                 if (tx->tx_power.ant_a ||
1952                     tx->tx_power.ant_b ||
1953                     tx->tx_power.ant_c) {
1954                         pos += scnprintf(buf + pos, bufsz - pos,
1955                                 "tx power: (1/2 dB step)\n");
1956                         if ((priv->cfg->valid_tx_ant & ANT_A) &&
1957                             tx->tx_power.ant_a)
1958                                 pos += scnprintf(buf + pos, bufsz - pos,
1959                                                 "\tantenna A: 0x%X\n",
1960                                                 tx->tx_power.ant_a);
1961                         if ((priv->cfg->valid_tx_ant & ANT_B) &&
1962                             tx->tx_power.ant_b)
1963                                 pos += scnprintf(buf + pos, bufsz - pos,
1964                                                 "\tantenna B: 0x%X\n",
1965                                                 tx->tx_power.ant_b);
1966                         if ((priv->cfg->valid_tx_ant & ANT_C) &&
1967                             tx->tx_power.ant_c)
1968                                 pos += scnprintf(buf + pos, bufsz - pos,
1969                                                 "\tantenna C: 0x%X\n",
1970                                                 tx->tx_power.ant_c);
1971                 } else
1972                         pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
1973         }
1974         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1975 }
1976
1977 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1978                                                     char __user *user_buf,
1979                                                     size_t count, loff_t *ppos)
1980 {
1981         struct iwl_priv *priv = file->private_data;
1982         char buf[60];
1983         int pos = 0;
1984         const size_t bufsz = sizeof(buf);
1985         u32 pwrsave_status;
1986
1987         pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
1988                         CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1989
1990         pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1991         pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1992                 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1993                 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1994                 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1995                 "error");
1996
1997         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1998 }
1999
2000 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
2001                                          const char __user *user_buf,
2002                                          size_t count, loff_t *ppos)
2003 {
2004         struct iwl_priv *priv = file->private_data;
2005         char buf[8];
2006         int buf_size;
2007         int clear;
2008
2009         memset(buf, 0, sizeof(buf));
2010         buf_size = min(count, sizeof(buf) -  1);
2011         if (copy_from_user(buf, user_buf, buf_size))
2012                 return -EFAULT;
2013         if (sscanf(buf, "%d", &clear) != 1)
2014                 return -EFAULT;
2015
2016         /* make request to uCode to retrieve statistics information */
2017         mutex_lock(&priv->mutex);
2018         iwl_send_statistics_request(priv, CMD_SYNC, true);
2019         mutex_unlock(&priv->mutex);
2020
2021         return count;
2022 }
2023
2024 static ssize_t iwl_dbgfs_csr_write(struct file *file,
2025                                          const char __user *user_buf,
2026                                          size_t count, loff_t *ppos)
2027 {
2028         struct iwl_priv *priv = file->private_data;
2029         char buf[8];
2030         int buf_size;
2031         int csr;
2032
2033         memset(buf, 0, sizeof(buf));
2034         buf_size = min(count, sizeof(buf) -  1);
2035         if (copy_from_user(buf, user_buf, buf_size))
2036                 return -EFAULT;
2037         if (sscanf(buf, "%d", &csr) != 1)
2038                 return -EFAULT;
2039
2040         if (priv->cfg->ops->lib->dump_csr)
2041                 priv->cfg->ops->lib->dump_csr(priv);
2042
2043         return count;
2044 }
2045
2046 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
2047                                         char __user *user_buf,
2048                                         size_t count, loff_t *ppos) {
2049
2050         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2051         int pos = 0;
2052         char buf[128];
2053         const size_t bufsz = sizeof(buf);
2054         ssize_t ret;
2055
2056         pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
2057                         priv->event_log.ucode_trace ? "On" : "Off");
2058         pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
2059                         priv->event_log.non_wraps_count);
2060         pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
2061                         priv->event_log.wraps_once_count);
2062         pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
2063                         priv->event_log.wraps_more_count);
2064
2065         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2066         return ret;
2067 }
2068
2069 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
2070                                          const char __user *user_buf,
2071                                          size_t count, loff_t *ppos)
2072 {
2073         struct iwl_priv *priv = file->private_data;
2074         char buf[8];
2075         int buf_size;
2076         int trace;
2077
2078         memset(buf, 0, sizeof(buf));
2079         buf_size = min(count, sizeof(buf) -  1);
2080         if (copy_from_user(buf, user_buf, buf_size))
2081                 return -EFAULT;
2082         if (sscanf(buf, "%d", &trace) != 1)
2083                 return -EFAULT;
2084
2085         if (trace) {
2086                 priv->event_log.ucode_trace = true;
2087                 /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
2088                 mod_timer(&priv->ucode_trace,
2089                         jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
2090         } else {
2091                 priv->event_log.ucode_trace = false;
2092                 del_timer_sync(&priv->ucode_trace);
2093         }
2094
2095         return count;
2096 }
2097
2098 static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
2099                                          char __user *user_buf,
2100                                          size_t count, loff_t *ppos)
2101 {
2102         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2103         char *buf;
2104         int pos = 0;
2105         ssize_t ret = -EFAULT;
2106
2107         if (priv->cfg->ops->lib->dump_fh) {
2108                 ret = pos = priv->cfg->ops->lib->dump_fh(priv, &buf, true);
2109                 if (buf) {
2110                         ret = simple_read_from_buffer(user_buf,
2111                                                       count, ppos, buf, pos);
2112                         kfree(buf);
2113                 }
2114         }
2115
2116         return ret;
2117 }
2118
2119 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
2120                                         char __user *user_buf,
2121                                         size_t count, loff_t *ppos) {
2122
2123         struct iwl_priv *priv = file->private_data;
2124         int pos = 0;
2125         char buf[12];
2126         const size_t bufsz = sizeof(buf);
2127         ssize_t ret;
2128
2129         pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
2130                         priv->missed_beacon_threshold);
2131
2132         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2133         return ret;
2134 }
2135
2136 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
2137                                          const char __user *user_buf,
2138                                          size_t count, loff_t *ppos)
2139 {
2140         struct iwl_priv *priv = file->private_data;
2141         char buf[8];
2142         int buf_size;
2143         int missed;
2144
2145         memset(buf, 0, sizeof(buf));
2146         buf_size = min(count, sizeof(buf) -  1);
2147         if (copy_from_user(buf, user_buf, buf_size))
2148                 return -EFAULT;
2149         if (sscanf(buf, "%d", &missed) != 1)
2150                 return -EINVAL;
2151
2152         if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
2153             missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
2154                 priv->missed_beacon_threshold =
2155                         IWL_MISSED_BEACON_THRESHOLD_DEF;
2156         else
2157                 priv->missed_beacon_threshold = missed;
2158
2159         return count;
2160 }
2161
2162 static ssize_t iwl_dbgfs_internal_scan_write(struct file *file,
2163                                          const char __user *user_buf,
2164                                          size_t count, loff_t *ppos)
2165 {
2166         struct iwl_priv *priv = file->private_data;
2167         char buf[8];
2168         int buf_size;
2169         int scan;
2170
2171         memset(buf, 0, sizeof(buf));
2172         buf_size = min(count, sizeof(buf) -  1);
2173         if (copy_from_user(buf, user_buf, buf_size))
2174                 return -EFAULT;
2175         if (sscanf(buf, "%d", &scan) != 1)
2176                 return -EINVAL;
2177
2178         iwl_internal_short_hw_scan(priv);
2179
2180         return count;
2181 }
2182
2183 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
2184                                         char __user *user_buf,
2185                                         size_t count, loff_t *ppos) {
2186
2187         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2188         int pos = 0;
2189         char buf[12];
2190         const size_t bufsz = sizeof(buf);
2191         ssize_t ret;
2192
2193         pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
2194                         priv->cfg->plcp_delta_threshold);
2195
2196         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2197         return ret;
2198 }
2199
2200 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
2201                                         const char __user *user_buf,
2202                                         size_t count, loff_t *ppos) {
2203
2204         struct iwl_priv *priv = file->private_data;
2205         char buf[8];
2206         int buf_size;
2207         int plcp;
2208
2209         memset(buf, 0, sizeof(buf));
2210         buf_size = min(count, sizeof(buf) -  1);
2211         if (copy_from_user(buf, user_buf, buf_size))
2212                 return -EFAULT;
2213         if (sscanf(buf, "%d", &plcp) != 1)
2214                 return -EINVAL;
2215         if ((plcp <= IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
2216                 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
2217                 priv->cfg->plcp_delta_threshold =
2218                         IWL_MAX_PLCP_ERR_THRESHOLD_DEF;
2219         else
2220                 priv->cfg->plcp_delta_threshold = plcp;
2221         return count;
2222 }
2223
2224 static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
2225                                         char __user *user_buf,
2226                                         size_t count, loff_t *ppos) {
2227
2228         struct iwl_priv *priv = file->private_data;
2229         int i, pos = 0;
2230         char buf[300];
2231         const size_t bufsz = sizeof(buf);
2232         struct iwl_force_reset *force_reset;
2233
2234         for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
2235                 force_reset = &priv->force_reset[i];
2236                 pos += scnprintf(buf + pos, bufsz - pos,
2237                                 "Force reset method %d\n", i);
2238                 pos += scnprintf(buf + pos, bufsz - pos,
2239                                 "\tnumber of reset request: %d\n",
2240                                 force_reset->reset_request_count);
2241                 pos += scnprintf(buf + pos, bufsz - pos,
2242                                 "\tnumber of reset request success: %d\n",
2243                                 force_reset->reset_success_count);
2244                 pos += scnprintf(buf + pos, bufsz - pos,
2245                                 "\tnumber of reset request reject: %d\n",
2246                                 force_reset->reset_reject_count);
2247                 pos += scnprintf(buf + pos, bufsz - pos,
2248                                 "\treset duration: %lu\n",
2249                                 force_reset->reset_duration);
2250         }
2251         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2252 }
2253
2254 static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
2255                                         const char __user *user_buf,
2256                                         size_t count, loff_t *ppos) {
2257
2258         struct iwl_priv *priv = file->private_data;
2259         char buf[8];
2260         int buf_size;
2261         int reset, ret;
2262
2263         memset(buf, 0, sizeof(buf));
2264         buf_size = min(count, sizeof(buf) -  1);
2265         if (copy_from_user(buf, user_buf, buf_size))
2266                 return -EFAULT;
2267         if (sscanf(buf, "%d", &reset) != 1)
2268                 return -EINVAL;
2269         switch (reset) {
2270         case IWL_RF_RESET:
2271         case IWL_FW_RESET:
2272                 ret = iwl_force_reset(priv, reset);
2273                 break;
2274         default:
2275                 return -EINVAL;
2276         }
2277         return ret ? ret : count;
2278 }
2279
2280 DEBUGFS_READ_FILE_OPS(rx_statistics);
2281 DEBUGFS_READ_FILE_OPS(tx_statistics);
2282 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
2283 DEBUGFS_READ_FILE_OPS(rx_queue);
2284 DEBUGFS_READ_FILE_OPS(tx_queue);
2285 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2286 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2287 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2288 DEBUGFS_READ_FILE_OPS(sensitivity);
2289 DEBUGFS_READ_FILE_OPS(chain_noise);
2290 DEBUGFS_READ_FILE_OPS(tx_power);
2291 DEBUGFS_READ_FILE_OPS(power_save_status);
2292 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2293 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
2294 DEBUGFS_WRITE_FILE_OPS(csr);
2295 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2296 DEBUGFS_READ_FILE_OPS(fh_reg);
2297 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2298 DEBUGFS_WRITE_FILE_OPS(internal_scan);
2299 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2300 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
2301
2302 /*
2303  * Create the debugfs files and directories
2304  *
2305  */
2306 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
2307 {
2308         struct dentry *phyd = priv->hw->wiphy->debugfsdir;
2309         struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
2310
2311         dir_drv = debugfs_create_dir(name, phyd);
2312         if (!dir_drv)
2313                 return -ENOMEM;
2314
2315         priv->debugfs_dir = dir_drv;
2316
2317         dir_data = debugfs_create_dir("data", dir_drv);
2318         if (!dir_data)
2319                 goto err;
2320         dir_rf = debugfs_create_dir("rf", dir_drv);
2321         if (!dir_rf)
2322                 goto err;
2323         dir_debug = debugfs_create_dir("debug", dir_drv);
2324         if (!dir_debug)
2325                 goto err;
2326
2327         DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
2328         DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
2329         DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR);
2330         DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
2331         DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
2332         DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
2333         DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
2334         DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
2335         DEBUGFS_ADD_FILE(led, dir_data, S_IRUSR);
2336         DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
2337         DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
2338         DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
2339         DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
2340         DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
2341         DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
2342         DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
2343         DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
2344         DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
2345         DEBUGFS_ADD_FILE(tx_power, dir_debug, S_IRUSR);
2346         DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
2347         DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
2348         DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
2349         DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
2350         DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
2351         DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
2352         DEBUGFS_ADD_FILE(internal_scan, dir_debug, S_IWUSR);
2353         DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
2354         DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
2355         if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
2356                 DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
2357                 DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
2358                 DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
2359                 DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
2360                 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
2361                 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
2362         }
2363         DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf, &priv->disable_sens_cal);
2364         DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
2365                          &priv->disable_chain_noise_cal);
2366         if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
2367             ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
2368                 DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf,
2369                                 &priv->disable_tx_power_cal);
2370         return 0;
2371
2372 err:
2373         IWL_ERR(priv, "Can't create the debugfs directory\n");
2374         iwl_dbgfs_unregister(priv);
2375         return -ENOMEM;
2376 }
2377 EXPORT_SYMBOL(iwl_dbgfs_register);
2378
2379 /**
2380  * Remove the debugfs files and directories
2381  *
2382  */
2383 void iwl_dbgfs_unregister(struct iwl_priv *priv)
2384 {
2385         if (!priv->debugfs_dir)
2386                 return;
2387
2388         debugfs_remove_recursive(priv->debugfs_dir);
2389         priv->debugfs_dir = NULL;
2390 }
2391 EXPORT_SYMBOL(iwl_dbgfs_unregister);
2392
2393
2394