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