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

   1 /******************************************************************************
   2  *
   3  * GPL LICENSE SUMMARY
   4  *
   5  * Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of version 2 of the GNU General Public License as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  19  * USA
  20  *
  21  * The full GNU General Public License is included in this distribution
  22  * in the file called LICENSE.GPL.
  23  *
  24  * Contact Information:
  25  *  Intel Linux Wireless <ilw@linux.intel.com>
  26  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  27  *****************************************************************************/
  28
  29 #include <linux/slab.h>
  30 #include <linux/kernel.h>
  31 #include <linux/module.h>
  32 #include <linux/debugfs.h>
  33
  34 #include <linux/ieee80211.h>
  35 #include <net/mac80211.h>
  36
  37
  38 #include "iwl-dev.h"
  39 #include "iwl-debug.h"
  40 #include "iwl-core.h"
  41 #include "iwl-io.h"
  42 #include "iwl-calib.h"
  43
  44 /* create and remove of files */
  45 #define DEBUGFS_ADD_FILE(name, parent, mode) do {                       \
  46         if (!debugfs_create_file(#name, mode, parent, priv,             \
  47                                  &iwl_dbgfs_##name##_ops))              \
  48                 goto err;                                               \
  49 } while (0)
  50
  51 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do {                        \
  52         struct dentry *__tmp;                                           \
  53         __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR,           \
  54                                     parent, ptr);                       \
  55         if (IS_ERR(__tmp) || !__tmp)                                    \
  56                 goto err;                                               \
  57 } while (0)
  58
  59 #define DEBUGFS_ADD_X32(name, parent, ptr) do {                         \
  60         struct dentry *__tmp;                                           \
  61         __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR,            \
  62                                    parent, ptr);                        \
  63         if (IS_ERR(__tmp) || !__tmp)                                    \
  64                 goto err;                                               \
  65 } while (0)
  66
  67 /* file operation */
  68 #define DEBUGFS_READ_FUNC(name)                                         \
  69 static ssize_t iwl_dbgfs_##name##_read(struct file *file,               \
  70                                         char __user *user_buf,          \
  71                                         size_t count, loff_t *ppos);
  72
  73 #define DEBUGFS_WRITE_FUNC(name)                                        \
  74 static ssize_t iwl_dbgfs_##name##_write(struct file *file,              \
  75                                         const char __user *user_buf,    \
  76                                         size_t count, loff_t *ppos);
  77
  78
  79 static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
  80 {
  81         file->private_data = inode->i_private;
  82         return 0;
  83 }
  84
  85 #define DEBUGFS_READ_FILE_OPS(name)                                     \
  86         DEBUGFS_READ_FUNC(name);                                        \
  87 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  88         .read = iwl_dbgfs_##name##_read,                                \
  89         .open = iwl_dbgfs_open_file_generic,                            \
  90 };
  91
  92 #define DEBUGFS_WRITE_FILE_OPS(name)                                    \
  93         DEBUGFS_WRITE_FUNC(name);                                       \
  94 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  95         .write = iwl_dbgfs_##name##_write,                              \
  96         .open = iwl_dbgfs_open_file_generic,                            \
  97 };
  98
  99
 100 #define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
 101         DEBUGFS_READ_FUNC(name);                                        \
 102         DEBUGFS_WRITE_FUNC(name);                                       \
 103 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
 104         .write = iwl_dbgfs_##name##_write,                              \
 105         .read = iwl_dbgfs_##name##_read,                                \
 106         .open = iwl_dbgfs_open_file_generic,                            \
 107 };
 108
 109 int iwl_dbgfs_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
 110 {
 111         int p = 0;
 112
 113         p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n",
 114                        le32_to_cpu(priv->statistics.flag));
 115         if (le32_to_cpu(priv->statistics.flag) & UCODE_STATISTICS_CLEAR_MSK)
 116                 p += scnprintf(buf + p, bufsz - p,
 117                                "\tStatistics have been cleared\n");
 118         p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
 119                        (le32_to_cpu(priv->statistics.flag) &
 120                         UCODE_STATISTICS_FREQUENCY_MSK)
 121                         ? "2.4 GHz" : "5.2 GHz");
 122         p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
 123                        (le32_to_cpu(priv->statistics.flag) &
 124                         UCODE_STATISTICS_NARROW_BAND_MSK)
 125                         ? "enabled" : "disabled");
 126         return p;
 127 }
 128 EXPORT_SYMBOL(iwl_dbgfs_statistics_flag);
 129
 130 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
 131                                                 char __user *user_buf,
 132                                                 size_t count, loff_t *ppos) {
 133
 134         struct iwl_priv *priv = file->private_data;
 135         char *buf;
 136         int pos = 0;
 137
 138         int cnt;
 139         ssize_t ret;
 140         const size_t bufsz = 100 +
 141                 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
 142         buf = kzalloc(bufsz, GFP_KERNEL);
 143         if (!buf)
 144                 return -ENOMEM;
 145         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
 146         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
 147                 pos += scnprintf(buf + pos, bufsz - pos,
 148                                  "\t%25s\t\t: %u\n",
 149                                  get_mgmt_string(cnt),
 150                                  priv->tx_stats.mgmt[cnt]);
 151         }
 152         pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
 153         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
 154                 pos += scnprintf(buf + pos, bufsz - pos,
 155                                  "\t%25s\t\t: %u\n",
 156                                  get_ctrl_string(cnt),
 157                                  priv->tx_stats.ctrl[cnt]);
 158         }
 159         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
 160         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
 161                          priv->tx_stats.data_cnt);
 162         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
 163                          priv->tx_stats.data_bytes);
 164         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 165         kfree(buf);
 166         return ret;
 167 }
 168
 169 static ssize_t iwl_dbgfs_clear_traffic_statistics_write(struct file *file,
 170                                         const char __user *user_buf,
 171                                         size_t count, loff_t *ppos)
 172 {
 173         struct iwl_priv *priv = file->private_data;
 174         u32 clear_flag;
 175         char buf[8];
 176         int buf_size;
 177
 178         memset(buf, 0, sizeof(buf));
 179         buf_size = min(count, sizeof(buf) -  1);
 180         if (copy_from_user(buf, user_buf, buf_size))
 181                 return -EFAULT;
 182         if (sscanf(buf, "%x", &clear_flag) != 1)
 183                 return -EFAULT;
 184         iwl_clear_traffic_stats(priv);
 185
 186         return count;
 187 }
 188
 189 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
 190                                                 char __user *user_buf,
 191                                                 size_t count, loff_t *ppos) {
 192
 193         struct iwl_priv *priv = file->private_data;
 194         char *buf;
 195         int pos = 0;
 196         int cnt;
 197         ssize_t ret;
 198         const size_t bufsz = 100 +
 199                 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
 200         buf = kzalloc(bufsz, GFP_KERNEL);
 201         if (!buf)
 202                 return -ENOMEM;
 203
 204         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
 205         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
 206                 pos += scnprintf(buf + pos, bufsz - pos,
 207                                  "\t%25s\t\t: %u\n",
 208                                  get_mgmt_string(cnt),
 209                                  priv->rx_stats.mgmt[cnt]);
 210         }
 211         pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
 212         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
 213                 pos += scnprintf(buf + pos, bufsz - pos,
 214                                  "\t%25s\t\t: %u\n",
 215                                  get_ctrl_string(cnt),
 216                                  priv->rx_stats.ctrl[cnt]);
 217         }
 218         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
 219         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
 220                          priv->rx_stats.data_cnt);
 221         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
 222                          priv->rx_stats.data_bytes);
 223
 224         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 225         kfree(buf);
 226         return ret;
 227 }
 228
 229 #define BYTE1_MASK 0x000000ff;
 230 #define BYTE2_MASK 0x0000ffff;
 231 #define BYTE3_MASK 0x00ffffff;
 232 static ssize_t iwl_dbgfs_sram_read(struct file *file,
 233                                         char __user *user_buf,
 234                                         size_t count, loff_t *ppos)
 235 {
 236         u32 val;
 237         char *buf;
 238         ssize_t ret;
 239         int i;
 240         int pos = 0;
 241         struct iwl_priv *priv = file->private_data;
 242         size_t bufsz;
 243
 244         /* default is to dump the entire data segment */
 245         if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
 246                 priv->dbgfs_sram_offset = 0x800000;
 247                 if (priv->ucode_type == UCODE_INIT)
 248                         priv->dbgfs_sram_len = priv->ucode_init_data.len;
 249                 else
 250                         priv->dbgfs_sram_len = priv->ucode_data.len;
 251         }
 252         bufsz =  30 + priv->dbgfs_sram_len * sizeof(char) * 10;
 253         buf = kmalloc(bufsz, GFP_KERNEL);
 254         if (!buf)
 255                 return -ENOMEM;
 256         pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
 257                         priv->dbgfs_sram_len);
 258         pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
 259                         priv->dbgfs_sram_offset);
 260         for (i = priv->dbgfs_sram_len; i > 0; i -= 4) {
 261                 val = iwl_read_targ_mem(priv, priv->dbgfs_sram_offset + \
 262                                         priv->dbgfs_sram_len - i);
 263                 if (i < 4) {
 264                         switch (i) {
 265                         case 1:
 266                                 val &= BYTE1_MASK;
 267                                 break;
 268                         case 2:
 269                                 val &= BYTE2_MASK;
 270                                 break;
 271                         case 3:
 272                                 val &= BYTE3_MASK;
 273                                 break;
 274                         }
 275                 }
 276                 if (!(i % 16))
 277                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 278                 pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
 279         }
 280         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 281
 282         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 283         kfree(buf);
 284         return ret;
 285 }
 286
 287 static ssize_t iwl_dbgfs_sram_write(struct file *file,
 288                                         const char __user *user_buf,
 289                                         size_t count, loff_t *ppos)
 290 {
 291         struct iwl_priv *priv = file->private_data;
 292         char buf[64];
 293         int buf_size;
 294         u32 offset, len;
 295
 296         memset(buf, 0, sizeof(buf));
 297         buf_size = min(count, sizeof(buf) -  1);
 298         if (copy_from_user(buf, user_buf, buf_size))
 299                 return -EFAULT;
 300
 301         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 302                 priv->dbgfs_sram_offset = offset;
 303                 priv->dbgfs_sram_len = len;
 304         } else {
 305                 priv->dbgfs_sram_offset = 0;
 306                 priv->dbgfs_sram_len = 0;
 307         }
 308
 309         return count;
 310 }
 311
 312 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 313                                         size_t count, loff_t *ppos)
 314 {
 315         struct iwl_priv *priv = file->private_data;
 316         struct iwl_station_entry *station;
 317         int max_sta = priv->hw_params.max_stations;
 318         char *buf;
 319         int i, j, pos = 0;
 320         ssize_t ret;
 321         /* Add 30 for initial string */
 322         const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
 323
 324         buf = kmalloc(bufsz, GFP_KERNEL);
 325         if (!buf)
 326                 return -ENOMEM;
 327
 328         pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
 329                         priv->num_stations);
 330
 331         for (i = 0; i < max_sta; i++) {
 332                 station = &priv->stations[i];
 333                 if (station->used) {
 334                         pos += scnprintf(buf + pos, bufsz - pos,
 335                                         "station %d:\ngeneral data:\n", i+1);
 336                         pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n",
 337                                         station->sta.sta.sta_id);
 338                         pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n",
 339                                         station->sta.mode);
 340                         pos += scnprintf(buf + pos, bufsz - pos,
 341                                         "flags: 0x%x\n",
 342                                         station->sta.station_flags_msk);
 343                         pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n");
 344                         pos += scnprintf(buf + pos, bufsz - pos,
 345                                         "seq_num\t\ttxq_id");
 346                         pos += scnprintf(buf + pos, bufsz - pos,
 347                                         "\tframe_count\twait_for_ba\t");
 348                         pos += scnprintf(buf + pos, bufsz - pos,
 349                                         "start_idx\tbitmap0\t");
 350                         pos += scnprintf(buf + pos, bufsz - pos,
 351                                         "bitmap1\trate_n_flags");
 352                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 353
 354                         for (j = 0; j < MAX_TID_COUNT; j++) {
 355                                 pos += scnprintf(buf + pos, bufsz - pos,
 356                                                 "[%d]:\t\t%u", j,
 357                                                 station->tid[j].seq_number);
 358                                 pos += scnprintf(buf + pos, bufsz - pos,
 359                                                 "\t%u\t\t%u\t\t%u\t\t",
 360                                                 station->tid[j].agg.txq_id,
 361                                                 station->tid[j].agg.frame_count,
 362                                                 station->tid[j].agg.wait_for_ba);
 363                                 pos += scnprintf(buf + pos, bufsz - pos,
 364                                                 "%u\t%llu\t%u",
 365                                                 station->tid[j].agg.start_idx,
 366                                                 (unsigned long long)station->tid[j].agg.bitmap,
 367                                                 station->tid[j].agg.rate_n_flags);
 368                                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 369                         }
 370                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 371                 }
 372         }
 373
 374         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 375         kfree(buf);
 376         return ret;
 377 }
 378
 379 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
 380                                        char __user *user_buf,
 381                                        size_t count,
 382                                        loff_t *ppos)
 383 {
 384         ssize_t ret;
 385         struct iwl_priv *priv = file->private_data;
 386         int pos = 0, ofs = 0, buf_size = 0;
 387         const u8 *ptr;
 388         char *buf;
 389         u16 eeprom_ver;
 390         size_t eeprom_len = priv->cfg->eeprom_size;
 391         buf_size = 4 * eeprom_len + 256;
 392
 393         if (eeprom_len % 16) {
 394                 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
 395                 return -ENODATA;
 396         }
 397
 398         ptr = priv->eeprom;
 399         if (!ptr) {
 400                 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
 401                 return -ENOMEM;
 402         }
 403
 404         /* 4 characters for byte 0xYY */
 405         buf = kzalloc(buf_size, GFP_KERNEL);
 406         if (!buf) {
 407                 IWL_ERR(priv, "Can not allocate Buffer\n");
 408                 return -ENOMEM;
 409         }
 410         eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
 411         pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
 412                         "version: 0x%x\n",
 413                         (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
 414                          ? "OTP" : "EEPROM", eeprom_ver);
 415         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
 416                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
 417                 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
 418                                    buf_size - pos, 0);
 419                 pos += strlen(buf + pos);
 420                 if (buf_size - pos > 0)
 421                         buf[pos++] = '\n';
 422         }
 423
 424         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 425         kfree(buf);
 426         return ret;
 427 }
 428
 429 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
 430                                          char __user *user_buf,
 431                                          size_t count, loff_t *ppos)
 432 {
 433         struct iwl_priv *priv = file->private_data;
 434         char *buf;
 435         int pos = 0;
 436         ssize_t ret = -ENOMEM;
 437
 438         ret = pos = priv->cfg->ops->lib->dump_nic_event_log(
 439                                         priv, true, &buf, true);
 440         if (buf) {
 441                 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 442                 kfree(buf);
 443         }
 444         return ret;
 445 }
 446
 447 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
 448                                         const char __user *user_buf,
 449                                         size_t count, loff_t *ppos)
 450 {
 451         struct iwl_priv *priv = file->private_data;
 452         u32 event_log_flag;
 453         char buf[8];
 454         int buf_size;
 455
 456         memset(buf, 0, sizeof(buf));
 457         buf_size = min(count, sizeof(buf) -  1);
 458         if (copy_from_user(buf, user_buf, buf_size))
 459                 return -EFAULT;
 460         if (sscanf(buf, "%d", &event_log_flag) != 1)
 461                 return -EFAULT;
 462         if (event_log_flag == 1)
 463                 priv->cfg->ops->lib->dump_nic_event_log(priv, true,
 464                                                         NULL, false);
 465
 466         return count;
 467 }
 468
 469
 470
 471 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 472                                        size_t count, loff_t *ppos)
 473 {
 474         struct iwl_priv *priv = file->private_data;
 475         struct ieee80211_channel *channels = NULL;
 476         const struct ieee80211_supported_band *supp_band = NULL;
 477         int pos = 0, i, bufsz = PAGE_SIZE;
 478         char *buf;
 479         ssize_t ret;
 480
 481         if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
 482                 return -EAGAIN;
 483
 484         buf = kzalloc(bufsz, GFP_KERNEL);
 485         if (!buf) {
 486                 IWL_ERR(priv, "Can not allocate Buffer\n");
 487                 return -ENOMEM;
 488         }
 489
 490         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
 491         if (supp_band) {
 492                 channels = supp_band->channels;
 493
 494                 pos += scnprintf(buf + pos, bufsz - pos,
 495                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
 496                                 supp_band->n_channels);
 497
 498                 for (i = 0; i < supp_band->n_channels; i++)
 499                         pos += scnprintf(buf + pos, bufsz - pos,
 500                                         "%d: %ddBm: BSS%s%s, %s.\n",
 501                                         ieee80211_frequency_to_channel(
 502                                         channels[i].center_freq),
 503                                         channels[i].max_power,
 504                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 505                                         " (IEEE 802.11h required)" : "",
 506                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 507                                         || (channels[i].flags &
 508                                         IEEE80211_CHAN_RADAR)) ? "" :
 509                                         ", IBSS",
 510                                         channels[i].flags &
 511                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 512                                         "passive only" : "active/passive");
 513         }
 514         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
 515         if (supp_band) {
 516                 channels = supp_band->channels;
 517
 518                 pos += scnprintf(buf + pos, bufsz - pos,
 519                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
 520                                 supp_band->n_channels);
 521
 522                 for (i = 0; i < supp_band->n_channels; i++)
 523                         pos += scnprintf(buf + pos, bufsz - pos,
 524                                         "%d: %ddBm: BSS%s%s, %s.\n",
 525                                         ieee80211_frequency_to_channel(
 526                                         channels[i].center_freq),
 527                                         channels[i].max_power,
 528                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 529                                         " (IEEE 802.11h required)" : "",
 530                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 531                                         || (channels[i].flags &
 532                                         IEEE80211_CHAN_RADAR)) ? "" :
 533                                         ", IBSS",
 534                                         channels[i].flags &
 535                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 536                                         "passive only" : "active/passive");
 537         }
 538         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 539         kfree(buf);
 540         return ret;
 541 }
 542
 543 static ssize_t iwl_dbgfs_status_read(struct file *file,
 544                                                 char __user *user_buf,
 545                                                 size_t count, loff_t *ppos) {
 546
 547         struct iwl_priv *priv = file->private_data;
 548         char buf[512];
 549         int pos = 0;
 550         const size_t bufsz = sizeof(buf);
 551
 552         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
 553                 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
 554         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
 555                 test_bit(STATUS_INT_ENABLED, &priv->status));
 556         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 557                 test_bit(STATUS_RF_KILL_HW, &priv->status));
 558         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 559                 test_bit(STATUS_CT_KILL, &priv->status));
 560         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
 561                 test_bit(STATUS_INIT, &priv->status));
 562         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 563                 test_bit(STATUS_ALIVE, &priv->status));
 564         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 565                 test_bit(STATUS_READY, &priv->status));
 566         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
 567                 test_bit(STATUS_TEMPERATURE, &priv->status));
 568         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
 569                 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
 570         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 571                 test_bit(STATUS_EXIT_PENDING, &priv->status));
 572         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 573                 test_bit(STATUS_STATISTICS, &priv->status));
 574         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 575                 test_bit(STATUS_SCANNING, &priv->status));
 576         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 577                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
 578         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 579                 test_bit(STATUS_SCAN_HW, &priv->status));
 580         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 581                 test_bit(STATUS_POWER_PMI, &priv->status));
 582         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 583                 test_bit(STATUS_FW_ERROR, &priv->status));
 584         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 585 }
 586
 587 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
 588                                         char __user *user_buf,
 589                                         size_t count, loff_t *ppos) {
 590
 591         struct iwl_priv *priv = file->private_data;
 592         int pos = 0;
 593         int cnt = 0;
 594         char *buf;
 595         int bufsz = 24 * 64; /* 24 items * 64 char per item */
 596         ssize_t ret;
 597
 598         buf = kzalloc(bufsz, GFP_KERNEL);
 599         if (!buf) {
 600                 IWL_ERR(priv, "Can not allocate Buffer\n");
 601                 return -ENOMEM;
 602         }
 603
 604         pos += scnprintf(buf + pos, bufsz - pos,
 605                         "Interrupt Statistics Report:\n");
 606
 607         pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
 608                 priv->isr_stats.hw);
 609         pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
 610                 priv->isr_stats.sw);
 611         if (priv->isr_stats.sw > 0) {
 612                 pos += scnprintf(buf + pos, bufsz - pos,
 613                         "\tLast Restarting Code:  0x%X\n",
 614                         priv->isr_stats.sw_err);
 615         }
 616 #ifdef CONFIG_IWLWIFI_DEBUG
 617         pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
 618                 priv->isr_stats.sch);
 619         pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
 620                 priv->isr_stats.alive);
 621 #endif
 622         pos += scnprintf(buf + pos, bufsz - pos,
 623                 "HW RF KILL switch toggled:\t %u\n",
 624                 priv->isr_stats.rfkill);
 625
 626         pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
 627                 priv->isr_stats.ctkill);
 628
 629         pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
 630                 priv->isr_stats.wakeup);
 631
 632         pos += scnprintf(buf + pos, bufsz - pos,
 633                 "Rx command responses:\t\t %u\n",
 634                 priv->isr_stats.rx);
 635         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 636                 if (priv->isr_stats.rx_handlers[cnt] > 0)
 637                         pos += scnprintf(buf + pos, bufsz - pos,
 638                                 "\tRx handler[%36s]:\t\t %u\n",
 639                                 get_cmd_string(cnt),
 640                                 priv->isr_stats.rx_handlers[cnt]);
 641         }
 642
 643         pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
 644                 priv->isr_stats.tx);
 645
 646         pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
 647                 priv->isr_stats.unhandled);
 648
 649         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 650         kfree(buf);
 651         return ret;
 652 }
 653
 654 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
 655                                          const char __user *user_buf,
 656                                          size_t count, loff_t *ppos)
 657 {
 658         struct iwl_priv *priv = file->private_data;
 659         char buf[8];
 660         int buf_size;
 661         u32 reset_flag;
 662
 663         memset(buf, 0, sizeof(buf));
 664         buf_size = min(count, sizeof(buf) -  1);
 665         if (copy_from_user(buf, user_buf, buf_size))
 666                 return -EFAULT;
 667         if (sscanf(buf, "%x", &reset_flag) != 1)
 668                 return -EFAULT;
 669         if (reset_flag == 0)
 670                 iwl_clear_isr_stats(priv);
 671
 672         return count;
 673 }
 674
 675 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 676                                        size_t count, loff_t *ppos)
 677 {
 678         struct iwl_priv *priv = file->private_data;
 679         int pos = 0, i;
 680         char buf[256];
 681         const size_t bufsz = sizeof(buf);
 682
 683         for (i = 0; i < AC_NUM; i++) {
 684                 pos += scnprintf(buf + pos, bufsz - pos,
 685                         "\tcw_min\tcw_max\taifsn\ttxop\n");
 686                 pos += scnprintf(buf + pos, bufsz - pos,
 687                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
 688                                 priv->qos_data.def_qos_parm.ac[i].cw_min,
 689                                 priv->qos_data.def_qos_parm.ac[i].cw_max,
 690                                 priv->qos_data.def_qos_parm.ac[i].aifsn,
 691                                 priv->qos_data.def_qos_parm.ac[i].edca_txop);
 692         }
 693         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 694 }
 695
 696 static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
 697                                   size_t count, loff_t *ppos)
 698 {
 699         struct iwl_priv *priv = file->private_data;
 700         int pos = 0;
 701         char buf[256];
 702         const size_t bufsz = sizeof(buf);
 703
 704         pos += scnprintf(buf + pos, bufsz - pos,
 705                          "allow blinking: %s\n",
 706                          (priv->allow_blinking) ? "True" : "False");
 707         if (priv->allow_blinking) {
 708                 pos += scnprintf(buf + pos, bufsz - pos,
 709                                  "Led blinking rate: %u\n",
 710                                  priv->last_blink_rate);
 711                 pos += scnprintf(buf + pos, bufsz - pos,
 712                                  "Last blink time: %lu\n",
 713                                  priv->last_blink_time);
 714         }
 715
 716         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 717 }
 718
 719 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 720                                 char __user *user_buf,
 721                                 size_t count, loff_t *ppos)
 722 {
 723         struct iwl_priv *priv = file->private_data;
 724         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 725         struct iwl_tt_restriction *restriction;
 726         char buf[100];
 727         int pos = 0;
 728         const size_t bufsz = sizeof(buf);
 729
 730         pos += scnprintf(buf + pos, bufsz - pos,
 731                         "Thermal Throttling Mode: %s\n",
 732                         tt->advanced_tt ? "Advance" : "Legacy");
 733         pos += scnprintf(buf + pos, bufsz - pos,
 734                         "Thermal Throttling State: %d\n",
 735                         tt->state);
 736         if (tt->advanced_tt) {
 737                 restriction = tt->restriction + tt->state;
 738                 pos += scnprintf(buf + pos, bufsz - pos,
 739                                 "Tx mode: %d\n",
 740                                 restriction->tx_stream);
 741                 pos += scnprintf(buf + pos, bufsz - pos,
 742                                 "Rx mode: %d\n",
 743                                 restriction->rx_stream);
 744                 pos += scnprintf(buf + pos, bufsz - pos,
 745                                 "HT mode: %d\n",
 746                                 restriction->is_ht);
 747         }
 748         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 749 }
 750
 751 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 752                                          const char __user *user_buf,
 753                                          size_t count, loff_t *ppos)
 754 {
 755         struct iwl_priv *priv = file->private_data;
 756         char buf[8];
 757         int buf_size;
 758         int ht40;
 759
 760         memset(buf, 0, sizeof(buf));
 761         buf_size = min(count, sizeof(buf) -  1);
 762         if (copy_from_user(buf, user_buf, buf_size))
 763                 return -EFAULT;
 764         if (sscanf(buf, "%d", &ht40) != 1)
 765                 return -EFAULT;
 766         if (!iwl_is_associated(priv))
 767                 priv->disable_ht40 = ht40 ? true : false;
 768         else {
 769                 IWL_ERR(priv, "Sta associated with AP - "
 770                         "Change to 40MHz channel support is not allowed\n");
 771                 return -EINVAL;
 772         }
 773
 774         return count;
 775 }
 776
 777 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 778                                          char __user *user_buf,
 779                                          size_t count, loff_t *ppos)
 780 {
 781         struct iwl_priv *priv = file->private_data;
 782         char buf[100];
 783         int pos = 0;
 784         const size_t bufsz = sizeof(buf);
 785
 786         pos += scnprintf(buf + pos, bufsz - pos,
 787                         "11n 40MHz Mode: %s\n",
 788                         priv->disable_ht40 ? "Disabled" : "Enabled");
 789         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 790 }
 791
 792 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 793                                                     const char __user *user_buf,
 794                                                     size_t count, loff_t *ppos)
 795 {
 796         struct iwl_priv *priv = file->private_data;
 797         char buf[8];
 798         int buf_size;
 799         int value;
 800
 801         memset(buf, 0, sizeof(buf));
 802         buf_size = min(count, sizeof(buf) -  1);
 803         if (copy_from_user(buf, user_buf, buf_size))
 804                 return -EFAULT;
 805
 806         if (sscanf(buf, "%d", &value) != 1)
 807                 return -EINVAL;
 808
 809         /*
 810          * Our users expect 0 to be "CAM", but 0 isn't actually
 811          * valid here. However, let's not confuse them and present
 812          * IWL_POWER_INDEX_1 as "1", not "0".
 813          */
 814         if (value == 0)
 815                 return -EINVAL;
 816         else if (value > 0)
 817                 value -= 1;
 818
 819         if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 820                 return -EINVAL;
 821
 822         if (!iwl_is_ready_rf(priv))
 823                 return -EAGAIN;
 824
 825         priv->power_data.debug_sleep_level_override = value;
 826
 827         mutex_lock(&priv->mutex);
 828         iwl_power_update_mode(priv, true);
 829         mutex_unlock(&priv->mutex);
 830
 831         return count;
 832 }
 833
 834 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 835                                                    char __user *user_buf,
 836                                                    size_t count, loff_t *ppos)
 837 {
 838         struct iwl_priv *priv = file->private_data;
 839         char buf[10];
 840         int pos, value;
 841         const size_t bufsz = sizeof(buf);
 842
 843         /* see the write function */
 844         value = priv->power_data.debug_sleep_level_override;
 845         if (value >= 0)
 846                 value += 1;
 847
 848         pos = scnprintf(buf, bufsz, "%d\n", value);
 849         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 850 }
 851
 852 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 853                                                     char __user *user_buf,
 854                                                     size_t count, loff_t *ppos)
 855 {
 856         struct iwl_priv *priv = file->private_data;
 857         char buf[200];
 858         int pos = 0, i;
 859         const size_t bufsz = sizeof(buf);
 860         struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 861
 862         pos += scnprintf(buf + pos, bufsz - pos,
 863                          "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 864         pos += scnprintf(buf + pos, bufsz - pos,
 865                          "RX/TX timeout: %d/%d usec\n",
 866                          le32_to_cpu(cmd->rx_data_timeout),
 867                          le32_to_cpu(cmd->tx_data_timeout));
 868         for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 869                 pos += scnprintf(buf + pos, bufsz - pos,
 870                                  "sleep_interval[%d]: %d\n", i,
 871                                  le32_to_cpu(cmd->sleep_interval[i]));
 872
 873         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 874 }
 875
 876 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 877 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
 878 DEBUGFS_READ_FILE_OPS(nvm);
 879 DEBUGFS_READ_FILE_OPS(stations);
 880 DEBUGFS_READ_FILE_OPS(channels);
 881 DEBUGFS_READ_FILE_OPS(status);
 882 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 883 DEBUGFS_READ_FILE_OPS(qos);
 884 DEBUGFS_READ_FILE_OPS(led);
 885 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 886 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 887 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 888 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 889
 890 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
 891                                          char __user *user_buf,
 892                                          size_t count, loff_t *ppos)
 893 {
 894         struct iwl_priv *priv = file->private_data;
 895         int pos = 0, ofs = 0;
 896         int cnt = 0, entry;
 897         struct iwl_tx_queue *txq;
 898         struct iwl_queue *q;
 899         struct iwl_rx_queue *rxq = &priv->rxq;
 900         char *buf;
 901         int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
 902                 (priv->cfg->num_of_queues * 32 * 8) + 400;
 903         const u8 *ptr;
 904         ssize_t ret;
 905
 906         if (!priv->txq) {
 907                 IWL_ERR(priv, "txq not ready\n");
 908                 return -EAGAIN;
 909         }
 910         buf = kzalloc(bufsz, GFP_KERNEL);
 911         if (!buf) {
 912                 IWL_ERR(priv, "Can not allocate buffer\n");
 913                 return -ENOMEM;
 914         }
 915         pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
 916         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 917                 txq = &priv->txq[cnt];
 918                 q = &txq->q;
 919                 pos += scnprintf(buf + pos, bufsz - pos,
 920                                 "q[%d]: read_ptr: %u, write_ptr: %u\n",
 921                                 cnt, q->read_ptr, q->write_ptr);
 922         }
 923         if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
 924                 ptr = priv->tx_traffic;
 925                 pos += scnprintf(buf + pos, bufsz - pos,
 926                                 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
 927                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 928                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 929                              entry++,  ofs += 16) {
 930                                 pos += scnprintf(buf + pos, bufsz - pos,
 931                                                 "0x%.4x ", ofs);
 932                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 933                                                    buf + pos, bufsz - pos, 0);
 934                                 pos += strlen(buf + pos);
 935                                 if (bufsz - pos > 0)
 936                                         buf[pos++] = '\n';
 937                         }
 938                 }
 939         }
 940
 941         pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
 942         pos += scnprintf(buf + pos, bufsz - pos,
 943                         "read: %u, write: %u\n",
 944                          rxq->read, rxq->write);
 945
 946         if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
 947                 ptr = priv->rx_traffic;
 948                 pos += scnprintf(buf + pos, bufsz - pos,
 949                                 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
 950                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 951                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 952                              entry++,  ofs += 16) {
 953                                 pos += scnprintf(buf + pos, bufsz - pos,
 954                                                 "0x%.4x ", ofs);
 955                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 956                                                    buf + pos, bufsz - pos, 0);
 957                                 pos += strlen(buf + pos);
 958                                 if (bufsz - pos > 0)
 959                                         buf[pos++] = '\n';
 960                         }
 961                 }
 962         }
 963
 964         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 965         kfree(buf);
 966         return ret;
 967 }
 968
 969 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
 970                                          const char __user *user_buf,
 971                                          size_t count, loff_t *ppos)
 972 {
 973         struct iwl_priv *priv = file->private_data;
 974         char buf[8];
 975         int buf_size;
 976         int traffic_log;
 977
 978         memset(buf, 0, sizeof(buf));
 979         buf_size = min(count, sizeof(buf) -  1);
 980         if (copy_from_user(buf, user_buf, buf_size))
 981                 return -EFAULT;
 982         if (sscanf(buf, "%d", &traffic_log) != 1)
 983                 return -EFAULT;
 984         if (traffic_log == 0)
 985                 iwl_reset_traffic_log(priv);
 986
 987         return count;
 988 }
 989
 990 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
 991                                                 char __user *user_buf,
 992                                                 size_t count, loff_t *ppos) {
 993
 994         struct iwl_priv *priv = file->private_data;
 995         struct iwl_tx_queue *txq;
 996         struct iwl_queue *q;
 997         char *buf;
 998         int pos = 0;
 999         int cnt;
1000         int ret;
1001         const size_t bufsz = sizeof(char) * 64 * priv->cfg->num_of_queues;
1002
1003         if (!priv->txq) {
1004                 IWL_ERR(priv, "txq not ready\n");
1005                 return -EAGAIN;
1006         }
1007         buf = kzalloc(bufsz, GFP_KERNEL);
1008         if (!buf)
1009                 return -ENOMEM;
1010
1011         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
1012                 txq = &priv->txq[cnt];
1013                 q = &txq->q;
1014                 pos += scnprintf(buf + pos, bufsz - pos,
1015                                 "hwq %.2d: read=%u write=%u stop=%d"
1016                                 " swq_id=%#.2x (ac %d/hwq %d)\n",
1017                                 cnt, q->read_ptr, q->write_ptr,
1018                                 !!test_bit(cnt, priv->queue_stopped),
1019                                 txq->swq_id,
1020                                 txq->swq_id & 0x80 ? txq->swq_id & 3 :
1021                                 txq->swq_id,
1022                                 txq->swq_id & 0x80 ? (txq->swq_id >> 2) &
1023                                 0x1f : txq->swq_id);
1024                 if (cnt >= 4)
1025                         continue;
1026                 /* for the ACs, display the stop count too */
1027                 pos += scnprintf(buf + pos, bufsz - pos,
1028                                 "        stop-count: %d\n",
1029                                 atomic_read(&priv->queue_stop_count[cnt]));
1030         }
1031         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1032         kfree(buf);
1033         return ret;
1034 }
1035
1036 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
1037                                                 char __user *user_buf,
1038                                                 size_t count, loff_t *ppos) {
1039
1040         struct iwl_priv *priv = file->private_data;
1041         struct iwl_rx_queue *rxq = &priv->rxq;
1042         char buf[256];
1043         int pos = 0;
1044         const size_t bufsz = sizeof(buf);
1045
1046         pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
1047                                                 rxq->read);
1048         pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
1049                                                 rxq->write);
1050         pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1051                                                 rxq->free_count);
1052         pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1053                          le16_to_cpu(rxq->rb_stts->closed_rb_num) &  0x0FFF);
1054         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1055 }
1056
1057 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1058                                         char __user *user_buf,
1059                                         size_t count, loff_t *ppos)
1060 {
1061         struct iwl_priv *priv = file->private_data;
1062         return priv->cfg->ops->lib->debugfs_ops.rx_stats_read(file,
1063                         user_buf, count, ppos);
1064 }
1065
1066 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1067                                         char __user *user_buf,
1068                                         size_t count, loff_t *ppos)
1069 {
1070         struct iwl_priv *priv = file->private_data;
1071         return priv->cfg->ops->lib->debugfs_ops.tx_stats_read(file,
1072                         user_buf, count, ppos);
1073 }
1074
1075 static ssize_t iwl_dbgfs_ucode_general_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         return priv->cfg->ops->lib->debugfs_ops.general_stats_read(file,
1081                         user_buf, count, ppos);
1082 }
1083
1084 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1085                                         char __user *user_buf,
1086                                         size_t count, loff_t *ppos) {
1087
1088         struct iwl_priv *priv = file->private_data;
1089         int pos = 0;
1090         int cnt = 0;
1091         char *buf;
1092         int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1093         ssize_t ret;
1094         struct iwl_sensitivity_data *data;
1095
1096         data = &priv->sensitivity_data;
1097         buf = kzalloc(bufsz, GFP_KERNEL);
1098         if (!buf) {
1099                 IWL_ERR(priv, "Can not allocate Buffer\n");
1100                 return -ENOMEM;
1101         }
1102
1103         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1104                         data->auto_corr_ofdm);
1105         pos += scnprintf(buf + pos, bufsz - pos,
1106                         "auto_corr_ofdm_mrc:\t\t %u\n",
1107                         data->auto_corr_ofdm_mrc);
1108         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1109                         data->auto_corr_ofdm_x1);
1110         pos += scnprintf(buf + pos, bufsz - pos,
1111                         "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1112                         data->auto_corr_ofdm_mrc_x1);
1113         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1114                         data->auto_corr_cck);
1115         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1116                         data->auto_corr_cck_mrc);
1117         pos += scnprintf(buf + pos, bufsz - pos,
1118                         "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1119                         data->last_bad_plcp_cnt_ofdm);
1120         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1121                         data->last_fa_cnt_ofdm);
1122         pos += scnprintf(buf + pos, bufsz - pos,
1123                         "last_bad_plcp_cnt_cck:\t\t %u\n",
1124                         data->last_bad_plcp_cnt_cck);
1125         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1126                         data->last_fa_cnt_cck);
1127         pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1128                         data->nrg_curr_state);
1129         pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1130                         data->nrg_prev_state);
1131         pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1132         for (cnt = 0; cnt < 10; cnt++) {
1133                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1134                                 data->nrg_value[cnt]);
1135         }
1136         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1137         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1138         for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1139                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1140                                 data->nrg_silence_rssi[cnt]);
1141         }
1142         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1143         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1144                         data->nrg_silence_ref);
1145         pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1146                         data->nrg_energy_idx);
1147         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1148                         data->nrg_silence_idx);
1149         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1150                         data->nrg_th_cck);
1151         pos += scnprintf(buf + pos, bufsz - pos,
1152                         "nrg_auto_corr_silence_diff:\t %u\n",
1153                         data->nrg_auto_corr_silence_diff);
1154         pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1155                         data->num_in_cck_no_fa);
1156         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1157                         data->nrg_th_ofdm);
1158
1159         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1160         kfree(buf);
1161         return ret;
1162 }
1163
1164
1165 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1166                                         char __user *user_buf,
1167                                         size_t count, loff_t *ppos) {
1168
1169         struct iwl_priv *priv = file->private_data;
1170         int pos = 0;
1171         int cnt = 0;
1172         char *buf;
1173         int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1174         ssize_t ret;
1175         struct iwl_chain_noise_data *data;
1176
1177         data = &priv->chain_noise_data;
1178         buf = kzalloc(bufsz, GFP_KERNEL);
1179         if (!buf) {
1180                 IWL_ERR(priv, "Can not allocate Buffer\n");
1181                 return -ENOMEM;
1182         }
1183
1184         pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1185                         data->active_chains);
1186         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1187                         data->chain_noise_a);
1188         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1189                         data->chain_noise_b);
1190         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1191                         data->chain_noise_c);
1192         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1193                         data->chain_signal_a);
1194         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1195                         data->chain_signal_b);
1196         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1197                         data->chain_signal_c);
1198         pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1199                         data->beacon_count);
1200
1201         pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1202         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1203                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1204                                 data->disconn_array[cnt]);
1205         }
1206         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1207         pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1208         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1209                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1210                                 data->delta_gain_code[cnt]);
1211         }
1212         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1213         pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1214                         data->radio_write);
1215         pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1216                         data->state);
1217
1218         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1219         kfree(buf);
1220         return ret;
1221 }
1222
1223 static ssize_t iwl_dbgfs_tx_power_read(struct file *file,
1224                                         char __user *user_buf,
1225                                         size_t count, loff_t *ppos) {
1226
1227         struct iwl_priv *priv = file->private_data;
1228         char buf[128];
1229         int pos = 0;
1230         const size_t bufsz = sizeof(buf);
1231         struct statistics_tx *tx;
1232
1233         if (!iwl_is_alive(priv))
1234                 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
1235         else {
1236                 tx = &priv->statistics.tx;
1237                 if (tx->tx_power.ant_a ||
1238                     tx->tx_power.ant_b ||
1239                     tx->tx_power.ant_c) {
1240                         pos += scnprintf(buf + pos, bufsz - pos,
1241                                 "tx power: (1/2 dB step)\n");
1242                         if ((priv->cfg->valid_tx_ant & ANT_A) &&
1243                             tx->tx_power.ant_a)
1244                                 pos += scnprintf(buf + pos, bufsz - pos,
1245                                                 "\tantenna A: 0x%X\n",
1246                                                 tx->tx_power.ant_a);
1247                         if ((priv->cfg->valid_tx_ant & ANT_B) &&
1248                             tx->tx_power.ant_b)
1249                                 pos += scnprintf(buf + pos, bufsz - pos,
1250                                                 "\tantenna B: 0x%X\n",
1251                                                 tx->tx_power.ant_b);
1252                         if ((priv->cfg->valid_tx_ant & ANT_C) &&
1253                             tx->tx_power.ant_c)
1254                                 pos += scnprintf(buf + pos, bufsz - pos,
1255                                                 "\tantenna C: 0x%X\n",
1256                                                 tx->tx_power.ant_c);
1257                 } else
1258                         pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
1259         }
1260         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1261 }
1262
1263 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1264                                                     char __user *user_buf,
1265                                                     size_t count, loff_t *ppos)
1266 {
1267         struct iwl_priv *priv = file->private_data;
1268         char buf[60];
1269         int pos = 0;
1270         const size_t bufsz = sizeof(buf);
1271         u32 pwrsave_status;
1272
1273         pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
1274                         CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1275
1276         pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1277         pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1278                 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1279                 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1280                 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1281                 "error");
1282
1283         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1284 }
1285
1286 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1287                                          const char __user *user_buf,
1288                                          size_t count, loff_t *ppos)
1289 {
1290         struct iwl_priv *priv = file->private_data;
1291         char buf[8];
1292         int buf_size;
1293         int clear;
1294
1295         memset(buf, 0, sizeof(buf));
1296         buf_size = min(count, sizeof(buf) -  1);
1297         if (copy_from_user(buf, user_buf, buf_size))
1298                 return -EFAULT;
1299         if (sscanf(buf, "%d", &clear) != 1)
1300                 return -EFAULT;
1301
1302         /* make request to uCode to retrieve statistics information */
1303         mutex_lock(&priv->mutex);
1304         iwl_send_statistics_request(priv, CMD_SYNC, true);
1305         mutex_unlock(&priv->mutex);
1306
1307         return count;
1308 }
1309
1310 static ssize_t iwl_dbgfs_csr_write(struct file *file,
1311                                          const char __user *user_buf,
1312                                          size_t count, loff_t *ppos)
1313 {
1314         struct iwl_priv *priv = file->private_data;
1315         char buf[8];
1316         int buf_size;
1317         int csr;
1318
1319         memset(buf, 0, sizeof(buf));
1320         buf_size = min(count, sizeof(buf) -  1);
1321         if (copy_from_user(buf, user_buf, buf_size))
1322                 return -EFAULT;
1323         if (sscanf(buf, "%d", &csr) != 1)
1324                 return -EFAULT;
1325
1326         if (priv->cfg->ops->lib->dump_csr)
1327                 priv->cfg->ops->lib->dump_csr(priv);
1328
1329         return count;
1330 }
1331
1332 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1333                                         char __user *user_buf,
1334                                         size_t count, loff_t *ppos) {
1335
1336         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1337         int pos = 0;
1338         char buf[128];
1339         const size_t bufsz = sizeof(buf);
1340
1341         pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1342                         priv->event_log.ucode_trace ? "On" : "Off");
1343         pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1344                         priv->event_log.non_wraps_count);
1345         pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1346                         priv->event_log.wraps_once_count);
1347         pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1348                         priv->event_log.wraps_more_count);
1349
1350         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1351 }
1352
1353 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1354                                          const char __user *user_buf,
1355                                          size_t count, loff_t *ppos)
1356 {
1357         struct iwl_priv *priv = file->private_data;
1358         char buf[8];
1359         int buf_size;
1360         int trace;
1361
1362         memset(buf, 0, sizeof(buf));
1363         buf_size = min(count, sizeof(buf) -  1);
1364         if (copy_from_user(buf, user_buf, buf_size))
1365                 return -EFAULT;
1366         if (sscanf(buf, "%d", &trace) != 1)
1367                 return -EFAULT;
1368
1369         if (trace) {
1370                 priv->event_log.ucode_trace = true;
1371                 /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
1372                 mod_timer(&priv->ucode_trace,
1373                         jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
1374         } else {
1375                 priv->event_log.ucode_trace = false;
1376                 del_timer_sync(&priv->ucode_trace);
1377         }
1378
1379         return count;
1380 }
1381
1382 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1383                                          char __user *user_buf,
1384                                          size_t count, loff_t *ppos) {
1385
1386         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1387         int len = 0;
1388         char buf[20];
1389
1390         len = sprintf(buf, "0x%04X\n", le32_to_cpu(priv->active_rxon.flags));
1391         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1392 }
1393
1394 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1395                                                 char __user *user_buf,
1396                                                 size_t count, loff_t *ppos) {
1397
1398         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1399         int len = 0;
1400         char buf[20];
1401
1402         len = sprintf(buf, "0x%04X\n",
1403                       le32_to_cpu(priv->active_rxon.filter_flags));
1404         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1405 }
1406
1407 static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
1408                                          char __user *user_buf,
1409                                          size_t count, loff_t *ppos)
1410 {
1411         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1412         char *buf;
1413         int pos = 0;
1414         ssize_t ret = -EFAULT;
1415
1416         if (priv->cfg->ops->lib->dump_fh) {
1417                 ret = pos = priv->cfg->ops->lib->dump_fh(priv, &buf, true);
1418                 if (buf) {
1419                         ret = simple_read_from_buffer(user_buf,
1420                                                       count, ppos, buf, pos);
1421                         kfree(buf);
1422                 }
1423         }
1424
1425         return ret;
1426 }
1427
1428 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1429                                         char __user *user_buf,
1430                                         size_t count, loff_t *ppos) {
1431
1432         struct iwl_priv *priv = file->private_data;
1433         int pos = 0;
1434         char buf[12];
1435         const size_t bufsz = sizeof(buf);
1436
1437         pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1438                         priv->missed_beacon_threshold);
1439
1440         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1441 }
1442
1443 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1444                                          const char __user *user_buf,
1445                                          size_t count, loff_t *ppos)
1446 {
1447         struct iwl_priv *priv = file->private_data;
1448         char buf[8];
1449         int buf_size;
1450         int missed;
1451
1452         memset(buf, 0, sizeof(buf));
1453         buf_size = min(count, sizeof(buf) -  1);
1454         if (copy_from_user(buf, user_buf, buf_size))
1455                 return -EFAULT;
1456         if (sscanf(buf, "%d", &missed) != 1)
1457                 return -EINVAL;
1458
1459         if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1460             missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1461                 priv->missed_beacon_threshold =
1462                         IWL_MISSED_BEACON_THRESHOLD_DEF;
1463         else
1464                 priv->missed_beacon_threshold = missed;
1465
1466         return count;
1467 }
1468
1469 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1470                                         char __user *user_buf,
1471                                         size_t count, loff_t *ppos) {
1472
1473         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1474         int pos = 0;
1475         char buf[12];
1476         const size_t bufsz = sizeof(buf);
1477
1478         pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1479                         priv->cfg->plcp_delta_threshold);
1480
1481         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1482 }
1483
1484 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1485                                         const char __user *user_buf,
1486                                         size_t count, loff_t *ppos) {
1487
1488         struct iwl_priv *priv = file->private_data;
1489         char buf[8];
1490         int buf_size;
1491         int plcp;
1492
1493         memset(buf, 0, sizeof(buf));
1494         buf_size = min(count, sizeof(buf) -  1);
1495         if (copy_from_user(buf, user_buf, buf_size))
1496                 return -EFAULT;
1497         if (sscanf(buf, "%d", &plcp) != 1)
1498                 return -EINVAL;
1499         if ((plcp <= IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1500                 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1501                 priv->cfg->plcp_delta_threshold =
1502                         IWL_MAX_PLCP_ERR_THRESHOLD_DEF;
1503         else
1504                 priv->cfg->plcp_delta_threshold = plcp;
1505         return count;
1506 }
1507
1508 static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
1509                                         char __user *user_buf,
1510                                         size_t count, loff_t *ppos) {
1511
1512         struct iwl_priv *priv = file->private_data;
1513         int i, pos = 0;
1514         char buf[300];
1515         const size_t bufsz = sizeof(buf);
1516         struct iwl_force_reset *force_reset;
1517
1518         for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
1519                 force_reset = &priv->force_reset[i];
1520                 pos += scnprintf(buf + pos, bufsz - pos,
1521                                 "Force reset method %d\n", i);
1522                 pos += scnprintf(buf + pos, bufsz - pos,
1523                                 "\tnumber of reset request: %d\n",
1524                                 force_reset->reset_request_count);
1525                 pos += scnprintf(buf + pos, bufsz - pos,
1526                                 "\tnumber of reset request success: %d\n",
1527                                 force_reset->reset_success_count);
1528                 pos += scnprintf(buf + pos, bufsz - pos,
1529                                 "\tnumber of reset request reject: %d\n",
1530                                 force_reset->reset_reject_count);
1531                 pos += scnprintf(buf + pos, bufsz - pos,
1532                                 "\treset duration: %lu\n",
1533                                 force_reset->reset_duration);
1534         }
1535         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1536 }
1537
1538 static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
1539                                         const char __user *user_buf,
1540                                         size_t count, loff_t *ppos) {
1541
1542         struct iwl_priv *priv = file->private_data;
1543         char buf[8];
1544         int buf_size;
1545         int reset, ret;
1546
1547         memset(buf, 0, sizeof(buf));
1548         buf_size = min(count, sizeof(buf) -  1);
1549         if (copy_from_user(buf, user_buf, buf_size))
1550                 return -EFAULT;
1551         if (sscanf(buf, "%d", &reset) != 1)
1552                 return -EINVAL;
1553         switch (reset) {
1554         case IWL_RF_RESET:
1555         case IWL_FW_RESET:
1556                 ret = iwl_force_reset(priv, reset);
1557                 break;
1558         default:
1559                 return -EINVAL;
1560         }
1561         return ret ? ret : count;
1562 }
1563
1564 DEBUGFS_READ_FILE_OPS(rx_statistics);
1565 DEBUGFS_READ_FILE_OPS(tx_statistics);
1566 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
1567 DEBUGFS_READ_FILE_OPS(rx_queue);
1568 DEBUGFS_READ_FILE_OPS(tx_queue);
1569 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
1570 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
1571 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
1572 DEBUGFS_READ_FILE_OPS(sensitivity);
1573 DEBUGFS_READ_FILE_OPS(chain_noise);
1574 DEBUGFS_READ_FILE_OPS(tx_power);
1575 DEBUGFS_READ_FILE_OPS(power_save_status);
1576 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
1577 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
1578 DEBUGFS_WRITE_FILE_OPS(csr);
1579 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
1580 DEBUGFS_READ_FILE_OPS(fh_reg);
1581 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
1582 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
1583 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
1584 DEBUGFS_READ_FILE_OPS(rxon_flags);
1585 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
1586
1587 /*
1588  * Create the debugfs files and directories
1589  *
1590  */
1591 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
1592 {
1593         struct dentry *phyd = priv->hw->wiphy->debugfsdir;
1594         struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
1595
1596         dir_drv = debugfs_create_dir(name, phyd);
1597         if (!dir_drv)
1598                 return -ENOMEM;
1599
1600         priv->debugfs_dir = dir_drv;
1601
1602         dir_data = debugfs_create_dir("data", dir_drv);
1603         if (!dir_data)
1604                 goto err;
1605         dir_rf = debugfs_create_dir("rf", dir_drv);
1606         if (!dir_rf)
1607                 goto err;
1608         dir_debug = debugfs_create_dir("debug", dir_drv);
1609         if (!dir_debug)
1610                 goto err;
1611
1612         DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
1613         DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
1614         DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR);
1615         DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
1616         DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
1617         DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
1618         DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
1619         DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
1620         DEBUGFS_ADD_FILE(led, dir_data, S_IRUSR);
1621         DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
1622         DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
1623         DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
1624         DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
1625         DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
1626         DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
1627         DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
1628         DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
1629         DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
1630         DEBUGFS_ADD_FILE(tx_power, dir_debug, S_IRUSR);
1631         DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
1632         DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
1633         DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
1634         DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
1635         DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
1636         DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
1637         DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
1638         DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
1639         DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
1640         DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
1641         DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
1642
1643         if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
1644                 DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
1645                 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
1646                 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
1647         }
1648         DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
1649         DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
1650         DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf, &priv->disable_sens_cal);
1651         DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
1652                          &priv->disable_chain_noise_cal);
1653         if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
1654             ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
1655                 DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf,
1656                                 &priv->disable_tx_power_cal);
1657         return 0;
1658
1659 err:
1660         IWL_ERR(priv, "Can't create the debugfs directory\n");
1661         iwl_dbgfs_unregister(priv);
1662         return -ENOMEM;
1663 }
1664 EXPORT_SYMBOL(iwl_dbgfs_register);
1665
1666 /**
1667  * Remove the debugfs files and directories
1668  *
1669  */
1670 void iwl_dbgfs_unregister(struct iwl_priv *priv)
1671 {
1672         if (!priv->debugfs_dir)
1673                 return;
1674
1675         debugfs_remove_recursive(priv->debugfs_dir);
1676         priv->debugfs_dir = NULL;
1677 }
1678 EXPORT_SYMBOL(iwl_dbgfs_unregister);
1679
1680
1681