iwlwifi/dvm/debugfs.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /******************************************************************************
0003  *
0004  * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
0005  * Copyright (C) 2018 Intel Corporation
0006  *****************************************************************************/
0007
0008 #include <linux/slab.h>
0009 #include <linux/kernel.h>
0010 #include <linux/module.h>
0011 #include <linux/debugfs.h>
0012 #include <linux/ieee80211.h>
0013 #include <net/mac80211.h>
0014
0015 #include "iwl-debug.h"
0016 #include "iwl-trans.h"
0017 #include "iwl-io.h"
0018 #include "dev.h"
0019 #include "agn.h"
0020
0021 /* create and remove of files */
0022 #define DEBUGFS_ADD_FILE(name, parent, mode) do {           \
0023     debugfs_create_file(#name, mode, parent, priv,          \
0024                 &iwl_dbgfs_##name##_ops);           \
0025 } while (0)
0026
0027 /* file operation */
0028 #define DEBUGFS_READ_FILE_OPS(name)                                     \
0029 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
0030     .read = iwl_dbgfs_##name##_read,                \
0031     .open = simple_open,                        \
0032     .llseek = generic_file_llseek,                  \
0033 };
0034
0035 #define DEBUGFS_WRITE_FILE_OPS(name)                                    \
0036 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
0037     .write = iwl_dbgfs_##name##_write,                              \
0038     .open = simple_open,                        \
0039     .llseek = generic_file_llseek,                  \
0040 };
0041
0042
0043 #define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
0044 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
0045     .write = iwl_dbgfs_##name##_write,                              \
0046     .read = iwl_dbgfs_##name##_read,                                \
0047     .open = simple_open,                        \
0048     .llseek = generic_file_llseek,                  \
0049 };
0050
0051 static ssize_t iwl_dbgfs_sram_read(struct file *file,
0052                     char __user *user_buf,
0053                     size_t count, loff_t *ppos)
0054 {
0055     u32 val = 0;
0056     char *buf;
0057     ssize_t ret;
0058     int i = 0;
0059     bool device_format = false;
0060     int offset = 0;
0061     int len = 0;
0062     int pos = 0;
0063     int sram;
0064     struct iwl_priv *priv = file->private_data;
0065     const struct fw_img *img;
0066     size_t bufsz;
0067
0068     if (!iwl_is_ready_rf(priv))
0069         return -EAGAIN;
0070
0071     /* default is to dump the entire data segment */
0072     if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
0073         priv->dbgfs_sram_offset = 0x800000;
0074         if (!priv->ucode_loaded)
0075             return -EINVAL;
0076         img = &priv->fw->img[priv->cur_ucode];
0077         priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
0078     }
0079     len = priv->dbgfs_sram_len;
0080
0081     if (len == -4) {
0082         device_format = true;
0083         len = 4;
0084     }
0085
0086     bufsz =  50 + len * 4;
0087     buf = kmalloc(bufsz, GFP_KERNEL);
0088     if (!buf)
0089         return -ENOMEM;
0090
0091     pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
0092              len);
0093     pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
0094             priv->dbgfs_sram_offset);
0095
0096     /* adjust sram address since reads are only on even u32 boundaries */
0097     offset = priv->dbgfs_sram_offset & 0x3;
0098     sram = priv->dbgfs_sram_offset & ~0x3;
0099
0100     /* read the first u32 from sram */
0101     val = iwl_trans_read_mem32(priv->trans, sram);
0102
0103     for (; len; len--) {
0104         /* put the address at the start of every line */
0105         if (i == 0)
0106             pos += scnprintf(buf + pos, bufsz - pos,
0107                 "%08X: ", sram + offset);
0108
0109         if (device_format)
0110             pos += scnprintf(buf + pos, bufsz - pos,
0111                 "%02x", (val >> (8 * (3 - offset))) & 0xff);
0112         else
0113             pos += scnprintf(buf + pos, bufsz - pos,
0114                 "%02x ", (val >> (8 * offset)) & 0xff);
0115
0116         /* if all bytes processed, read the next u32 from sram */
0117         if (++offset == 4) {
0118             sram += 4;
0119             offset = 0;
0120             val = iwl_trans_read_mem32(priv->trans, sram);
0121         }
0122
0123         /* put in extra spaces and split lines for human readability */
0124         if (++i == 16) {
0125             i = 0;
0126             pos += scnprintf(buf + pos, bufsz - pos, "\n");
0127         } else if (!(i & 7)) {
0128             pos += scnprintf(buf + pos, bufsz - pos, "   ");
0129         } else if (!(i & 3)) {
0130             pos += scnprintf(buf + pos, bufsz - pos, " ");
0131         }
0132     }
0133     if (i)
0134         pos += scnprintf(buf + pos, bufsz - pos, "\n");
0135
0136     ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
0137     kfree(buf);
0138     return ret;
0139 }
0140
0141 static ssize_t iwl_dbgfs_sram_write(struct file *file,
0142                     const char __user *user_buf,
0143                     size_t count, loff_t *ppos)
0144 {
0145     struct iwl_priv *priv = file->private_data;
0146     char buf[64];
0147     int buf_size;
0148     u32 offset, len;
0149
0150     memset(buf, 0, sizeof(buf));
0151     buf_size = min(count, sizeof(buf) -  1);
0152     if (copy_from_user(buf, user_buf, buf_size))
0153         return -EFAULT;
0154
0155     if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
0156         priv->dbgfs_sram_offset = offset;
0157         priv->dbgfs_sram_len = len;
0158     } else if (sscanf(buf, "%x", &offset) == 1) {
0159         priv->dbgfs_sram_offset = offset;
0160         priv->dbgfs_sram_len = -4;
0161     } else {
0162         priv->dbgfs_sram_offset = 0;
0163         priv->dbgfs_sram_len = 0;
0164     }
0165
0166     return count;
0167 }
0168
0169 static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
0170                       char __user *user_buf,
0171                       size_t count, loff_t *ppos)
0172 {
0173     struct iwl_priv *priv = file->private_data;
0174     const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN];
0175
0176     if (!priv->wowlan_sram)
0177         return -ENODATA;
0178
0179     return simple_read_from_buffer(user_buf, count, ppos,
0180                        priv->wowlan_sram,
0181                        img->sec[IWL_UCODE_SECTION_DATA].len);
0182 }
0183 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
0184                     size_t count, loff_t *ppos)
0185 {
0186     struct iwl_priv *priv = file->private_data;
0187     struct iwl_station_entry *station;
0188     struct iwl_tid_data *tid_data;
0189     char *buf;
0190     int i, j, pos = 0;
0191     ssize_t ret;
0192     /* Add 30 for initial string */
0193     const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
0194
0195     buf = kmalloc(bufsz, GFP_KERNEL);
0196     if (!buf)
0197         return -ENOMEM;
0198
0199     pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
0200             priv->num_stations);
0201
0202     for (i = 0; i < IWLAGN_STATION_COUNT; i++) {
0203         station = &priv->stations[i];
0204         if (!station->used)
0205             continue;
0206         pos += scnprintf(buf + pos, bufsz - pos,
0207                  "station %d - addr: %pM, flags: %#x\n",
0208                  i, station->sta.sta.addr,
0209                  station->sta.station_flags_msk);
0210         pos += scnprintf(buf + pos, bufsz - pos,
0211                 "TID seqno  next_rclmd "
0212                 "rate_n_flags state txq\n");
0213
0214         for (j = 0; j < IWL_MAX_TID_COUNT; j++) {
0215             tid_data = &priv->tid_data[i][j];
0216             pos += scnprintf(buf + pos, bufsz - pos,
0217                 "%d:  0x%.4x 0x%.4x     0x%.8x   "
0218                 "%d     %.2d",
0219                 j, tid_data->seq_number,
0220                 tid_data->next_reclaimed,
0221                 tid_data->agg.rate_n_flags,
0222                 tid_data->agg.state,
0223                 tid_data->agg.txq_id);
0224
0225             if (tid_data->agg.wait_for_ba)
0226                 pos += scnprintf(buf + pos, bufsz - pos,
0227                          " - waitforba");
0228             pos += scnprintf(buf + pos, bufsz - pos, "\n");
0229         }
0230
0231         pos += scnprintf(buf + pos, bufsz - pos, "\n");
0232     }
0233
0234     ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
0235     kfree(buf);
0236     return ret;
0237 }
0238
0239 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
0240                        char __user *user_buf,
0241                        size_t count,
0242                        loff_t *ppos)
0243 {
0244     ssize_t ret;
0245     struct iwl_priv *priv = file->private_data;
0246     int pos = 0, ofs = 0, buf_size = 0;
0247     const u8 *ptr;
0248     char *buf;
0249     u16 nvm_ver;
0250     size_t eeprom_len = priv->eeprom_blob_size;
0251     buf_size = 4 * eeprom_len + 256;
0252
0253     if (eeprom_len % 16)
0254         return -ENODATA;
0255
0256     ptr = priv->eeprom_blob;
0257     if (!ptr)
0258         return -ENOMEM;
0259
0260     /* 4 characters for byte 0xYY */
0261     buf = kzalloc(buf_size, GFP_KERNEL);
0262     if (!buf)
0263         return -ENOMEM;
0264
0265     nvm_ver = priv->nvm_data->nvm_version;
0266     pos += scnprintf(buf + pos, buf_size - pos,
0267              "NVM version: 0x%x\n", nvm_ver);
0268     for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
0269         pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x %16ph\n",
0270                  ofs, ptr + ofs);
0271     }
0272
0273     ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
0274     kfree(buf);
0275     return ret;
0276 }
0277
0278 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
0279                        size_t count, loff_t *ppos)
0280 {
0281     struct iwl_priv *priv = file->private_data;
0282     struct ieee80211_channel *channels = NULL;
0283     const struct ieee80211_supported_band *supp_band = NULL;
0284     int pos = 0, i, bufsz = PAGE_SIZE;
0285     char *buf;
0286     ssize_t ret;
0287
0288     buf = kzalloc(bufsz, GFP_KERNEL);
0289     if (!buf)
0290         return -ENOMEM;
0291
0292     supp_band = iwl_get_hw_mode(priv, NL80211_BAND_2GHZ);
0293     if (supp_band) {
0294         channels = supp_band->channels;
0295
0296         pos += scnprintf(buf + pos, bufsz - pos,
0297                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
0298                 supp_band->n_channels);
0299
0300         for (i = 0; i < supp_band->n_channels; i++)
0301             pos += scnprintf(buf + pos, bufsz - pos,
0302                     "%d: %ddBm: BSS%s%s, %s.\n",
0303                     channels[i].hw_value,
0304                     channels[i].max_power,
0305                     channels[i].flags & IEEE80211_CHAN_RADAR ?
0306                     " (IEEE 802.11h required)" : "",
0307                     ((channels[i].flags & IEEE80211_CHAN_NO_IR)
0308                     || (channels[i].flags &
0309                     IEEE80211_CHAN_RADAR)) ? "" :
0310                     ", IBSS",
0311                     channels[i].flags &
0312                     IEEE80211_CHAN_NO_IR ?
0313                     "passive only" : "active/passive");
0314     }
0315     supp_band = iwl_get_hw_mode(priv, NL80211_BAND_5GHZ);
0316     if (supp_band) {
0317         channels = supp_band->channels;
0318
0319         pos += scnprintf(buf + pos, bufsz - pos,
0320                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
0321                 supp_band->n_channels);
0322
0323         for (i = 0; i < supp_band->n_channels; i++)
0324             pos += scnprintf(buf + pos, bufsz - pos,
0325                     "%d: %ddBm: BSS%s%s, %s.\n",
0326                     channels[i].hw_value,
0327                     channels[i].max_power,
0328                     channels[i].flags & IEEE80211_CHAN_RADAR ?
0329                     " (IEEE 802.11h required)" : "",
0330                     ((channels[i].flags & IEEE80211_CHAN_NO_IR)
0331                     || (channels[i].flags &
0332                     IEEE80211_CHAN_RADAR)) ? "" :
0333                     ", IBSS",
0334                     channels[i].flags &
0335                     IEEE80211_CHAN_NO_IR ?
0336                     "passive only" : "active/passive");
0337     }
0338     ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
0339     kfree(buf);
0340     return ret;
0341 }
0342
0343 static ssize_t iwl_dbgfs_status_read(struct file *file,
0344                         char __user *user_buf,
0345                         size_t count, loff_t *ppos) {
0346
0347     struct iwl_priv *priv = file->private_data;
0348     char buf[512];
0349     int pos = 0;
0350     const size_t bufsz = sizeof(buf);
0351
0352     pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
0353         test_bit(STATUS_RF_KILL_HW, &priv->status));
0354     pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
0355         test_bit(STATUS_CT_KILL, &priv->status));
0356     pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
0357         test_bit(STATUS_ALIVE, &priv->status));
0358     pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
0359         test_bit(STATUS_READY, &priv->status));
0360     pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
0361         test_bit(STATUS_EXIT_PENDING, &priv->status));
0362     pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
0363         test_bit(STATUS_STATISTICS, &priv->status));
0364     pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
0365         test_bit(STATUS_SCANNING, &priv->status));
0366     pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
0367         test_bit(STATUS_SCAN_ABORTING, &priv->status));
0368     pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
0369         test_bit(STATUS_SCAN_HW, &priv->status));
0370     pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
0371         test_bit(STATUS_POWER_PMI, &priv->status));
0372     pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
0373         test_bit(STATUS_FW_ERROR, &priv->status));
0374     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
0375 }
0376
0377 static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file,
0378                     char __user *user_buf,
0379                     size_t count, loff_t *ppos) {
0380
0381     struct iwl_priv *priv = file->private_data;
0382
0383     int pos = 0;
0384     int cnt = 0;
0385     char *buf;
0386     int bufsz = 24 * 64; /* 24 items * 64 char per item */
0387     ssize_t ret;
0388
0389     buf = kzalloc(bufsz, GFP_KERNEL);
0390     if (!buf)
0391         return -ENOMEM;
0392
0393     for (cnt = 0; cnt < REPLY_MAX; cnt++) {
0394         if (priv->rx_handlers_stats[cnt] > 0)
0395             pos += scnprintf(buf + pos, bufsz - pos,
0396                 "\tRx handler[%36s]:\t\t %u\n",
0397                 iwl_get_cmd_string(priv->trans, (u32)cnt),
0398                 priv->rx_handlers_stats[cnt]);
0399     }
0400
0401     ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
0402     kfree(buf);
0403     return ret;
0404 }
0405
0406 static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
0407                      const char __user *user_buf,
0408                      size_t count, loff_t *ppos)
0409 {
0410     struct iwl_priv *priv = file->private_data;
0411
0412     char buf[8];
0413     int buf_size;
0414     u32 reset_flag;
0415
0416     memset(buf, 0, sizeof(buf));
0417     buf_size = min(count, sizeof(buf) -  1);
0418     if (copy_from_user(buf, user_buf, buf_size))
0419         return -EFAULT;
0420     if (sscanf(buf, "%x", &reset_flag) != 1)
0421         return -EFAULT;
0422     if (reset_flag == 0)
0423         memset(&priv->rx_handlers_stats[0], 0,
0424             sizeof(priv->rx_handlers_stats));
0425
0426     return count;
0427 }
0428
0429 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
0430                        size_t count, loff_t *ppos)
0431 {
0432     struct iwl_priv *priv = file->private_data;
0433     struct iwl_rxon_context *ctx;
0434     int pos = 0, i;
0435     char buf[256 * NUM_IWL_RXON_CTX];
0436     const size_t bufsz = sizeof(buf);
0437
0438     for_each_context(priv, ctx) {
0439         pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
0440                  ctx->ctxid);
0441         for (i = 0; i < AC_NUM; i++) {
0442             pos += scnprintf(buf + pos, bufsz - pos,
0443                 "\tcw_min\tcw_max\taifsn\ttxop\n");
0444             pos += scnprintf(buf + pos, bufsz - pos,
0445                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
0446                 ctx->qos_data.def_qos_parm.ac[i].cw_min,
0447                 ctx->qos_data.def_qos_parm.ac[i].cw_max,
0448                 ctx->qos_data.def_qos_parm.ac[i].aifsn,
0449                 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
0450         }
0451         pos += scnprintf(buf + pos, bufsz - pos, "\n");
0452     }
0453     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
0454 }
0455
0456 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
0457                 char __user *user_buf,
0458                 size_t count, loff_t *ppos)
0459 {
0460     struct iwl_priv *priv = file->private_data;
0461     struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
0462     struct iwl_tt_restriction *restriction;
0463     char buf[100];
0464     int pos = 0;
0465     const size_t bufsz = sizeof(buf);
0466
0467     pos += scnprintf(buf + pos, bufsz - pos,
0468             "Thermal Throttling Mode: %s\n",
0469             tt->advanced_tt ? "Advance" : "Legacy");
0470     pos += scnprintf(buf + pos, bufsz - pos,
0471             "Thermal Throttling State: %d\n",
0472             tt->state);
0473     if (tt->advanced_tt) {
0474         restriction = tt->restriction + tt->state;
0475         pos += scnprintf(buf + pos, bufsz - pos,
0476                 "Tx mode: %d\n",
0477                 restriction->tx_stream);
0478         pos += scnprintf(buf + pos, bufsz - pos,
0479                 "Rx mode: %d\n",
0480                 restriction->rx_stream);
0481         pos += scnprintf(buf + pos, bufsz - pos,
0482                 "HT mode: %d\n",
0483                 restriction->is_ht);
0484     }
0485     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
0486 }
0487
0488 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
0489                      const char __user *user_buf,
0490                      size_t count, loff_t *ppos)
0491 {
0492     struct iwl_priv *priv = file->private_data;
0493     char buf[8];
0494     int buf_size;
0495     int ht40;
0496
0497     memset(buf, 0, sizeof(buf));
0498     buf_size = min(count, sizeof(buf) -  1);
0499     if (copy_from_user(buf, user_buf, buf_size))
0500         return -EFAULT;
0501     if (sscanf(buf, "%d", &ht40) != 1)
0502         return -EFAULT;
0503     if (!iwl_is_any_associated(priv))
0504         priv->disable_ht40 = ht40 ? true : false;
0505     else
0506         return -EINVAL;
0507
0508     return count;
0509 }
0510
0511 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
0512                      char __user *user_buf,
0513                      size_t count, loff_t *ppos)
0514 {
0515     struct iwl_priv *priv = file->private_data;
0516     char buf[100];
0517     int pos = 0;
0518     const size_t bufsz = sizeof(buf);
0519
0520     pos += scnprintf(buf + pos, bufsz - pos,
0521             "11n 40MHz Mode: %s\n",
0522             priv->disable_ht40 ? "Disabled" : "Enabled");
0523     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
0524 }
0525
0526 static ssize_t iwl_dbgfs_temperature_read(struct file *file,
0527                      char __user *user_buf,
0528                      size_t count, loff_t *ppos)
0529 {
0530     struct iwl_priv *priv = file->private_data;
0531     char buf[8];
0532     int pos = 0;
0533     const size_t bufsz = sizeof(buf);
0534
0535     pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->temperature);
0536     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
0537 }
0538
0539
0540 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
0541                             const char __user *user_buf,
0542                             size_t count, loff_t *ppos)
0543 {
0544     struct iwl_priv *priv = file->private_data;
0545     char buf[8];
0546     int buf_size;
0547     int value;
0548
0549     memset(buf, 0, sizeof(buf));
0550     buf_size = min(count, sizeof(buf) -  1);
0551     if (copy_from_user(buf, user_buf, buf_size))
0552         return -EFAULT;
0553
0554     if (sscanf(buf, "%d", &value) != 1)
0555         return -EINVAL;
0556
0557     /*
0558      * Our users expect 0 to be "CAM", but 0 isn't actually
0559      * valid here. However, let's not confuse them and present
0560      * IWL_POWER_INDEX_1 as "1", not "0".
0561      */
0562     if (value == 0)
0563         return -EINVAL;
0564     else if (value > 0)
0565         value -= 1;
0566
0567     if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
0568         return -EINVAL;
0569
0570     if (!iwl_is_ready_rf(priv))
0571         return -EAGAIN;
0572
0573     priv->power_data.debug_sleep_level_override = value;
0574
0575     mutex_lock(&priv->mutex);
0576     iwl_power_update_mode(priv, true);
0577     mutex_unlock(&priv->mutex);
0578
0579     return count;
0580 }
0581
0582 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
0583                            char __user *user_buf,
0584                            size_t count, loff_t *ppos)
0585 {
0586     struct iwl_priv *priv = file->private_data;
0587     char buf[10];
0588     int pos, value;
0589     const size_t bufsz = sizeof(buf);
0590
0591     /* see the write function */
0592     value = priv->power_data.debug_sleep_level_override;
0593     if (value >= 0)
0594         value += 1;
0595
0596     pos = scnprintf(buf, bufsz, "%d\n", value);
0597     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
0598 }
0599
0600 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
0601                             char __user *user_buf,
0602                             size_t count, loff_t *ppos)
0603 {
0604     struct iwl_priv *priv = file->private_data;
0605     char buf[200];
0606     int pos = 0, i;
0607     const size_t bufsz = sizeof(buf);
0608     struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
0609
0610     pos += scnprintf(buf + pos, bufsz - pos,
0611              "flags: %#.2x\n", le16_to_cpu(cmd->flags));
0612     pos += scnprintf(buf + pos, bufsz - pos,
0613              "RX/TX timeout: %d/%d usec\n",
0614              le32_to_cpu(cmd->rx_data_timeout),
0615              le32_to_cpu(cmd->tx_data_timeout));
0616     for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
0617         pos += scnprintf(buf + pos, bufsz - pos,
0618                  "sleep_interval[%d]: %d\n", i,
0619                  le32_to_cpu(cmd->sleep_interval[i]));
0620
0621     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
0622 }
0623
0624 DEBUGFS_READ_WRITE_FILE_OPS(sram);
0625 DEBUGFS_READ_FILE_OPS(wowlan_sram);
0626 DEBUGFS_READ_FILE_OPS(nvm);
0627 DEBUGFS_READ_FILE_OPS(stations);
0628 DEBUGFS_READ_FILE_OPS(channels);
0629 DEBUGFS_READ_FILE_OPS(status);
0630 DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers);
0631 DEBUGFS_READ_FILE_OPS(qos);
0632 DEBUGFS_READ_FILE_OPS(thermal_throttling);
0633 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
0634 DEBUGFS_READ_FILE_OPS(temperature);
0635 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
0636 DEBUGFS_READ_FILE_OPS(current_sleep_command);
0637
0638 #define fmt_value   "  %-30s %10u\n"
0639 #define fmt_hex     "  %-30s       0x%02X\n"
0640 #define fmt_table   "  %-30s %10u  %10u  %10u  %10u\n"
0641 #define fmt_header  "%-32s    current  cumulative       delta         max\n"
0642
0643 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
0644 {
0645     int p = 0;
0646     u32 flag;
0647
0648     lockdep_assert_held(&priv->statistics.lock);
0649
0650     flag = le32_to_cpu(priv->statistics.flag);
0651
0652     p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
0653     if (flag & UCODE_STATISTICS_CLEAR_MSK)
0654         p += scnprintf(buf + p, bufsz - p,
0655         "\tStatistics have been cleared\n");
0656     p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
0657         (flag & UCODE_STATISTICS_FREQUENCY_MSK)
0658         ? "2.4 GHz" : "5.2 GHz");
0659     p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
0660         (flag & UCODE_STATISTICS_NARROW_BAND_MSK)
0661          ? "enabled" : "disabled");
0662
0663     return p;
0664 }
0665
0666 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
0667                     char __user *user_buf,
0668                     size_t count, loff_t *ppos)
0669 {
0670     struct iwl_priv *priv = file->private_data;
0671     int pos = 0;
0672     char *buf;
0673     int bufsz = sizeof(struct statistics_rx_phy) * 40 +
0674             sizeof(struct statistics_rx_non_phy) * 40 +
0675             sizeof(struct statistics_rx_ht_phy) * 40 + 400;
0676     ssize_t ret;
0677     struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
0678     struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
0679     struct statistics_rx_non_phy *general, *accum_general;
0680     struct statistics_rx_non_phy *delta_general, *max_general;
0681     struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
0682
0683     if (!iwl_is_alive(priv))
0684         return -EAGAIN;
0685
0686     buf = kzalloc(bufsz, GFP_KERNEL);
0687     if (!buf)
0688         return -ENOMEM;
0689
0690     /*
0691      * the statistic information display here is based on
0692      * the last statistics notification from uCode
0693      * might not reflect the current uCode activity
0694      */
0695     spin_lock_bh(&priv->statistics.lock);
0696     ofdm = &priv->statistics.rx_ofdm;
0697     cck = &priv->statistics.rx_cck;
0698     general = &priv->statistics.rx_non_phy;
0699     ht = &priv->statistics.rx_ofdm_ht;
0700     accum_ofdm = &priv->accum_stats.rx_ofdm;
0701     accum_cck = &priv->accum_stats.rx_cck;
0702     accum_general = &priv->accum_stats.rx_non_phy;
0703     accum_ht = &priv->accum_stats.rx_ofdm_ht;
0704     delta_ofdm = &priv->delta_stats.rx_ofdm;
0705     delta_cck = &priv->delta_stats.rx_cck;
0706     delta_general = &priv->delta_stats.rx_non_phy;
0707     delta_ht = &priv->delta_stats.rx_ofdm_ht;
0708     max_ofdm = &priv->max_delta_stats.rx_ofdm;
0709     max_cck = &priv->max_delta_stats.rx_cck;
0710     max_general = &priv->max_delta_stats.rx_non_phy;
0711     max_ht = &priv->max_delta_stats.rx_ofdm_ht;
0712
0713     pos += iwl_statistics_flag(priv, buf, bufsz);
0714     pos += scnprintf(buf + pos, bufsz - pos,
0715              fmt_header, "Statistics_Rx - OFDM:");
0716     pos += scnprintf(buf + pos, bufsz - pos,
0717              fmt_table, "ina_cnt:",
0718              le32_to_cpu(ofdm->ina_cnt),
0719              accum_ofdm->ina_cnt,
0720              delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
0721     pos += scnprintf(buf + pos, bufsz - pos,
0722              fmt_table, "fina_cnt:",
0723              le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
0724              delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
0725     pos += scnprintf(buf + pos, bufsz - pos,
0726              fmt_table, "plcp_err:",
0727              le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
0728              delta_ofdm->plcp_err, max_ofdm->plcp_err);
0729     pos += scnprintf(buf + pos, bufsz - pos,
0730              fmt_table, "crc32_err:",
0731              le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
0732              delta_ofdm->crc32_err, max_ofdm->crc32_err);
0733     pos += scnprintf(buf + pos, bufsz - pos,
0734              fmt_table, "overrun_err:",
0735              le32_to_cpu(ofdm->overrun_err),
0736              accum_ofdm->overrun_err, delta_ofdm->overrun_err,
0737              max_ofdm->overrun_err);
0738     pos += scnprintf(buf + pos, bufsz - pos,
0739              fmt_table, "early_overrun_err:",
0740              le32_to_cpu(ofdm->early_overrun_err),
0741              accum_ofdm->early_overrun_err,
0742              delta_ofdm->early_overrun_err,
0743              max_ofdm->early_overrun_err);
0744     pos += scnprintf(buf + pos, bufsz - pos,
0745              fmt_table, "crc32_good:",
0746              le32_to_cpu(ofdm->crc32_good),
0747              accum_ofdm->crc32_good, delta_ofdm->crc32_good,
0748              max_ofdm->crc32_good);
0749     pos += scnprintf(buf + pos, bufsz - pos,
0750              fmt_table, "false_alarm_cnt:",
0751              le32_to_cpu(ofdm->false_alarm_cnt),
0752              accum_ofdm->false_alarm_cnt,
0753              delta_ofdm->false_alarm_cnt,
0754              max_ofdm->false_alarm_cnt);
0755     pos += scnprintf(buf + pos, bufsz - pos,
0756              fmt_table, "fina_sync_err_cnt:",
0757              le32_to_cpu(ofdm->fina_sync_err_cnt),
0758              accum_ofdm->fina_sync_err_cnt,
0759              delta_ofdm->fina_sync_err_cnt,
0760              max_ofdm->fina_sync_err_cnt);
0761     pos += scnprintf(buf + pos, bufsz - pos,
0762              fmt_table, "sfd_timeout:",
0763              le32_to_cpu(ofdm->sfd_timeout),
0764              accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
0765              max_ofdm->sfd_timeout);
0766     pos += scnprintf(buf + pos, bufsz - pos,
0767              fmt_table, "fina_timeout:",
0768              le32_to_cpu(ofdm->fina_timeout),
0769              accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
0770              max_ofdm->fina_timeout);
0771     pos += scnprintf(buf + pos, bufsz - pos,
0772              fmt_table, "unresponded_rts:",
0773              le32_to_cpu(ofdm->unresponded_rts),
0774              accum_ofdm->unresponded_rts,
0775              delta_ofdm->unresponded_rts,
0776              max_ofdm->unresponded_rts);
0777     pos += scnprintf(buf + pos, bufsz - pos,
0778              fmt_table, "rxe_frame_lmt_ovrun:",
0779              le32_to_cpu(ofdm->rxe_frame_limit_overrun),
0780              accum_ofdm->rxe_frame_limit_overrun,
0781              delta_ofdm->rxe_frame_limit_overrun,
0782              max_ofdm->rxe_frame_limit_overrun);
0783     pos += scnprintf(buf + pos, bufsz - pos,
0784              fmt_table, "sent_ack_cnt:",
0785              le32_to_cpu(ofdm->sent_ack_cnt),
0786              accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
0787              max_ofdm->sent_ack_cnt);
0788     pos += scnprintf(buf + pos, bufsz - pos,
0789              fmt_table, "sent_cts_cnt:",
0790              le32_to_cpu(ofdm->sent_cts_cnt),
0791              accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
0792              max_ofdm->sent_cts_cnt);
0793     pos += scnprintf(buf + pos, bufsz - pos,
0794              fmt_table, "sent_ba_rsp_cnt:",
0795              le32_to_cpu(ofdm->sent_ba_rsp_cnt),
0796              accum_ofdm->sent_ba_rsp_cnt,
0797              delta_ofdm->sent_ba_rsp_cnt,
0798              max_ofdm->sent_ba_rsp_cnt);
0799     pos += scnprintf(buf + pos, bufsz - pos,
0800              fmt_table, "dsp_self_kill:",
0801              le32_to_cpu(ofdm->dsp_self_kill),
0802              accum_ofdm->dsp_self_kill,
0803              delta_ofdm->dsp_self_kill,
0804              max_ofdm->dsp_self_kill);
0805     pos += scnprintf(buf + pos, bufsz - pos,
0806              fmt_table, "mh_format_err:",
0807              le32_to_cpu(ofdm->mh_format_err),
0808              accum_ofdm->mh_format_err,
0809              delta_ofdm->mh_format_err,
0810              max_ofdm->mh_format_err);
0811     pos += scnprintf(buf + pos, bufsz - pos,
0812              fmt_table, "re_acq_main_rssi_sum:",
0813              le32_to_cpu(ofdm->re_acq_main_rssi_sum),
0814              accum_ofdm->re_acq_main_rssi_sum,
0815              delta_ofdm->re_acq_main_rssi_sum,
0816              max_ofdm->re_acq_main_rssi_sum);
0817
0818     pos += scnprintf(buf + pos, bufsz - pos,
0819              fmt_header, "Statistics_Rx - CCK:");
0820     pos += scnprintf(buf + pos, bufsz - pos,
0821              fmt_table, "ina_cnt:",
0822              le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
0823              delta_cck->ina_cnt, max_cck->ina_cnt);
0824     pos += scnprintf(buf + pos, bufsz - pos,
0825              fmt_table, "fina_cnt:",
0826              le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
0827              delta_cck->fina_cnt, max_cck->fina_cnt);
0828     pos += scnprintf(buf + pos, bufsz - pos,
0829              fmt_table, "plcp_err:",
0830              le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
0831              delta_cck->plcp_err, max_cck->plcp_err);
0832     pos += scnprintf(buf + pos, bufsz - pos,
0833              fmt_table, "crc32_err:",
0834              le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
0835              delta_cck->crc32_err, max_cck->crc32_err);
0836     pos += scnprintf(buf + pos, bufsz - pos,
0837              fmt_table, "overrun_err:",
0838              le32_to_cpu(cck->overrun_err),
0839              accum_cck->overrun_err, delta_cck->overrun_err,
0840              max_cck->overrun_err);
0841     pos += scnprintf(buf + pos, bufsz - pos,
0842              fmt_table, "early_overrun_err:",
0843              le32_to_cpu(cck->early_overrun_err),
0844              accum_cck->early_overrun_err,
0845              delta_cck->early_overrun_err,
0846              max_cck->early_overrun_err);
0847     pos += scnprintf(buf + pos, bufsz - pos,
0848              fmt_table, "crc32_good:",
0849              le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
0850              delta_cck->crc32_good, max_cck->crc32_good);
0851     pos += scnprintf(buf + pos, bufsz - pos,
0852              fmt_table, "false_alarm_cnt:",
0853              le32_to_cpu(cck->false_alarm_cnt),
0854              accum_cck->false_alarm_cnt,
0855              delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
0856     pos += scnprintf(buf + pos, bufsz - pos,
0857              fmt_table, "fina_sync_err_cnt:",
0858              le32_to_cpu(cck->fina_sync_err_cnt),
0859              accum_cck->fina_sync_err_cnt,
0860              delta_cck->fina_sync_err_cnt,
0861              max_cck->fina_sync_err_cnt);
0862     pos += scnprintf(buf + pos, bufsz - pos,
0863              fmt_table, "sfd_timeout:",
0864              le32_to_cpu(cck->sfd_timeout),
0865              accum_cck->sfd_timeout, delta_cck->sfd_timeout,
0866              max_cck->sfd_timeout);
0867     pos += scnprintf(buf + pos, bufsz - pos,
0868              fmt_table, "fina_timeout:",
0869              le32_to_cpu(cck->fina_timeout),
0870              accum_cck->fina_timeout, delta_cck->fina_timeout,
0871              max_cck->fina_timeout);
0872     pos += scnprintf(buf + pos, bufsz - pos,
0873              fmt_table, "unresponded_rts:",
0874              le32_to_cpu(cck->unresponded_rts),
0875              accum_cck->unresponded_rts, delta_cck->unresponded_rts,
0876              max_cck->unresponded_rts);
0877     pos += scnprintf(buf + pos, bufsz - pos,
0878              fmt_table, "rxe_frame_lmt_ovrun:",
0879              le32_to_cpu(cck->rxe_frame_limit_overrun),
0880              accum_cck->rxe_frame_limit_overrun,
0881              delta_cck->rxe_frame_limit_overrun,
0882              max_cck->rxe_frame_limit_overrun);
0883     pos += scnprintf(buf + pos, bufsz - pos,
0884              fmt_table, "sent_ack_cnt:",
0885              le32_to_cpu(cck->sent_ack_cnt),
0886              accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
0887              max_cck->sent_ack_cnt);
0888     pos += scnprintf(buf + pos, bufsz - pos,
0889              fmt_table, "sent_cts_cnt:",
0890              le32_to_cpu(cck->sent_cts_cnt),
0891              accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
0892              max_cck->sent_cts_cnt);
0893     pos += scnprintf(buf + pos, bufsz - pos,
0894              fmt_table, "sent_ba_rsp_cnt:",
0895              le32_to_cpu(cck->sent_ba_rsp_cnt),
0896              accum_cck->sent_ba_rsp_cnt,
0897              delta_cck->sent_ba_rsp_cnt,
0898              max_cck->sent_ba_rsp_cnt);
0899     pos += scnprintf(buf + pos, bufsz - pos,
0900              fmt_table, "dsp_self_kill:",
0901              le32_to_cpu(cck->dsp_self_kill),
0902              accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
0903              max_cck->dsp_self_kill);
0904     pos += scnprintf(buf + pos, bufsz - pos,
0905              fmt_table, "mh_format_err:",
0906              le32_to_cpu(cck->mh_format_err),
0907              accum_cck->mh_format_err, delta_cck->mh_format_err,
0908              max_cck->mh_format_err);
0909     pos += scnprintf(buf + pos, bufsz - pos,
0910              fmt_table, "re_acq_main_rssi_sum:",
0911              le32_to_cpu(cck->re_acq_main_rssi_sum),
0912              accum_cck->re_acq_main_rssi_sum,
0913              delta_cck->re_acq_main_rssi_sum,
0914              max_cck->re_acq_main_rssi_sum);
0915
0916     pos += scnprintf(buf + pos, bufsz - pos,
0917              fmt_header, "Statistics_Rx - GENERAL:");
0918     pos += scnprintf(buf + pos, bufsz - pos,
0919              fmt_table, "bogus_cts:",
0920              le32_to_cpu(general->bogus_cts),
0921              accum_general->bogus_cts, delta_general->bogus_cts,
0922              max_general->bogus_cts);
0923     pos += scnprintf(buf + pos, bufsz - pos,
0924              fmt_table, "bogus_ack:",
0925              le32_to_cpu(general->bogus_ack),
0926              accum_general->bogus_ack, delta_general->bogus_ack,
0927              max_general->bogus_ack);
0928     pos += scnprintf(buf + pos, bufsz - pos,
0929              fmt_table, "non_bssid_frames:",
0930              le32_to_cpu(general->non_bssid_frames),
0931              accum_general->non_bssid_frames,
0932              delta_general->non_bssid_frames,
0933              max_general->non_bssid_frames);
0934     pos += scnprintf(buf + pos, bufsz - pos,
0935              fmt_table, "filtered_frames:",
0936              le32_to_cpu(general->filtered_frames),
0937              accum_general->filtered_frames,
0938              delta_general->filtered_frames,
0939              max_general->filtered_frames);
0940     pos += scnprintf(buf + pos, bufsz - pos,
0941              fmt_table, "non_channel_beacons:",
0942              le32_to_cpu(general->non_channel_beacons),
0943              accum_general->non_channel_beacons,
0944              delta_general->non_channel_beacons,
0945              max_general->non_channel_beacons);
0946     pos += scnprintf(buf + pos, bufsz - pos,
0947              fmt_table, "channel_beacons:",
0948              le32_to_cpu(general->channel_beacons),
0949              accum_general->channel_beacons,
0950              delta_general->channel_beacons,
0951              max_general->channel_beacons);
0952     pos += scnprintf(buf + pos, bufsz - pos,
0953              fmt_table, "num_missed_bcon:",
0954              le32_to_cpu(general->num_missed_bcon),
0955              accum_general->num_missed_bcon,
0956              delta_general->num_missed_bcon,
0957              max_general->num_missed_bcon);
0958     pos += scnprintf(buf + pos, bufsz - pos,
0959              fmt_table, "adc_rx_saturation_time:",
0960              le32_to_cpu(general->adc_rx_saturation_time),
0961              accum_general->adc_rx_saturation_time,
0962              delta_general->adc_rx_saturation_time,
0963              max_general->adc_rx_saturation_time);
0964     pos += scnprintf(buf + pos, bufsz - pos,
0965              fmt_table, "ina_detect_search_tm:",
0966              le32_to_cpu(general->ina_detection_search_time),
0967              accum_general->ina_detection_search_time,
0968              delta_general->ina_detection_search_time,
0969              max_general->ina_detection_search_time);
0970     pos += scnprintf(buf + pos, bufsz - pos,
0971              fmt_table, "beacon_silence_rssi_a:",
0972              le32_to_cpu(general->beacon_silence_rssi_a),
0973              accum_general->beacon_silence_rssi_a,
0974              delta_general->beacon_silence_rssi_a,
0975              max_general->beacon_silence_rssi_a);
0976     pos += scnprintf(buf + pos, bufsz - pos,
0977              fmt_table, "beacon_silence_rssi_b:",
0978              le32_to_cpu(general->beacon_silence_rssi_b),
0979              accum_general->beacon_silence_rssi_b,
0980              delta_general->beacon_silence_rssi_b,
0981              max_general->beacon_silence_rssi_b);
0982     pos += scnprintf(buf + pos, bufsz - pos,
0983              fmt_table, "beacon_silence_rssi_c:",
0984              le32_to_cpu(general->beacon_silence_rssi_c),
0985              accum_general->beacon_silence_rssi_c,
0986              delta_general->beacon_silence_rssi_c,
0987              max_general->beacon_silence_rssi_c);
0988     pos += scnprintf(buf + pos, bufsz - pos,
0989              fmt_table, "interference_data_flag:",
0990              le32_to_cpu(general->interference_data_flag),
0991              accum_general->interference_data_flag,
0992              delta_general->interference_data_flag,
0993              max_general->interference_data_flag);
0994     pos += scnprintf(buf + pos, bufsz - pos,
0995              fmt_table, "channel_load:",
0996              le32_to_cpu(general->channel_load),
0997              accum_general->channel_load,
0998              delta_general->channel_load,
0999              max_general->channel_load);
1000     pos += scnprintf(buf + pos, bufsz - pos,
1001              fmt_table, "dsp_false_alarms:",
1002              le32_to_cpu(general->dsp_false_alarms),
1003              accum_general->dsp_false_alarms,
1004              delta_general->dsp_false_alarms,
1005              max_general->dsp_false_alarms);
1006     pos += scnprintf(buf + pos, bufsz - pos,
1007              fmt_table, "beacon_rssi_a:",
1008              le32_to_cpu(general->beacon_rssi_a),
1009              accum_general->beacon_rssi_a,
1010              delta_general->beacon_rssi_a,
1011              max_general->beacon_rssi_a);
1012     pos += scnprintf(buf + pos, bufsz - pos,
1013              fmt_table, "beacon_rssi_b:",
1014              le32_to_cpu(general->beacon_rssi_b),
1015              accum_general->beacon_rssi_b,
1016              delta_general->beacon_rssi_b,
1017              max_general->beacon_rssi_b);
1018     pos += scnprintf(buf + pos, bufsz - pos,
1019              fmt_table, "beacon_rssi_c:",
1020              le32_to_cpu(general->beacon_rssi_c),
1021              accum_general->beacon_rssi_c,
1022              delta_general->beacon_rssi_c,
1023              max_general->beacon_rssi_c);
1024     pos += scnprintf(buf + pos, bufsz - pos,
1025              fmt_table, "beacon_energy_a:",
1026              le32_to_cpu(general->beacon_energy_a),
1027              accum_general->beacon_energy_a,
1028              delta_general->beacon_energy_a,
1029              max_general->beacon_energy_a);
1030     pos += scnprintf(buf + pos, bufsz - pos,
1031              fmt_table, "beacon_energy_b:",
1032              le32_to_cpu(general->beacon_energy_b),
1033              accum_general->beacon_energy_b,
1034              delta_general->beacon_energy_b,
1035              max_general->beacon_energy_b);
1036     pos += scnprintf(buf + pos, bufsz - pos,
1037              fmt_table, "beacon_energy_c:",
1038              le32_to_cpu(general->beacon_energy_c),
1039              accum_general->beacon_energy_c,
1040              delta_general->beacon_energy_c,
1041              max_general->beacon_energy_c);
1042
1043     pos += scnprintf(buf + pos, bufsz - pos,
1044              fmt_header, "Statistics_Rx - OFDM_HT:");
1045     pos += scnprintf(buf + pos, bufsz - pos,
1046              fmt_table, "plcp_err:",
1047              le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1048              delta_ht->plcp_err, max_ht->plcp_err);
1049     pos += scnprintf(buf + pos, bufsz - pos,
1050              fmt_table, "overrun_err:",
1051              le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1052              delta_ht->overrun_err, max_ht->overrun_err);
1053     pos += scnprintf(buf + pos, bufsz - pos,
1054              fmt_table, "early_overrun_err:",
1055              le32_to_cpu(ht->early_overrun_err),
1056              accum_ht->early_overrun_err,
1057              delta_ht->early_overrun_err,
1058              max_ht->early_overrun_err);
1059     pos += scnprintf(buf + pos, bufsz - pos,
1060              fmt_table, "crc32_good:",
1061              le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1062              delta_ht->crc32_good, max_ht->crc32_good);
1063     pos += scnprintf(buf + pos, bufsz - pos,
1064              fmt_table, "crc32_err:",
1065              le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1066              delta_ht->crc32_err, max_ht->crc32_err);
1067     pos += scnprintf(buf + pos, bufsz - pos,
1068              fmt_table, "mh_format_err:",
1069              le32_to_cpu(ht->mh_format_err),
1070              accum_ht->mh_format_err,
1071              delta_ht->mh_format_err, max_ht->mh_format_err);
1072     pos += scnprintf(buf + pos, bufsz - pos,
1073              fmt_table, "agg_crc32_good:",
1074              le32_to_cpu(ht->agg_crc32_good),
1075              accum_ht->agg_crc32_good,
1076              delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1077     pos += scnprintf(buf + pos, bufsz - pos,
1078              fmt_table, "agg_mpdu_cnt:",
1079              le32_to_cpu(ht->agg_mpdu_cnt),
1080              accum_ht->agg_mpdu_cnt,
1081              delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1082     pos += scnprintf(buf + pos, bufsz - pos,
1083              fmt_table, "agg_cnt:",
1084              le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1085              delta_ht->agg_cnt, max_ht->agg_cnt);
1086     pos += scnprintf(buf + pos, bufsz - pos,
1087              fmt_table, "unsupport_mcs:",
1088              le32_to_cpu(ht->unsupport_mcs),
1089              accum_ht->unsupport_mcs,
1090              delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1091
1092     spin_unlock_bh(&priv->statistics.lock);
1093
1094     ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1095     kfree(buf);
1096     return ret;
1097 }
1098
1099 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1100                     char __user *user_buf,
1101                     size_t count, loff_t *ppos)
1102 {
1103     struct iwl_priv *priv = file->private_data;
1104     int pos = 0;
1105     char *buf;
1106     int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1107     ssize_t ret;
1108     struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1109
1110     if (!iwl_is_alive(priv))
1111         return -EAGAIN;
1112
1113     buf = kzalloc(bufsz, GFP_KERNEL);
1114     if (!buf)
1115         return -ENOMEM;
1116
1117     /* the statistic information display here is based on
1118      * the last statistics notification from uCode
1119      * might not reflect the current uCode activity
1120      */
1121     spin_lock_bh(&priv->statistics.lock);
1122
1123     tx = &priv->statistics.tx;
1124     accum_tx = &priv->accum_stats.tx;
1125     delta_tx = &priv->delta_stats.tx;
1126     max_tx = &priv->max_delta_stats.tx;
1127
1128     pos += iwl_statistics_flag(priv, buf, bufsz);
1129     pos += scnprintf(buf + pos, bufsz - pos,
1130              fmt_header, "Statistics_Tx:");
1131     pos += scnprintf(buf + pos, bufsz - pos,
1132              fmt_table, "preamble:",
1133              le32_to_cpu(tx->preamble_cnt),
1134              accum_tx->preamble_cnt,
1135              delta_tx->preamble_cnt, max_tx->preamble_cnt);
1136     pos += scnprintf(buf + pos, bufsz - pos,
1137              fmt_table, "rx_detected_cnt:",
1138              le32_to_cpu(tx->rx_detected_cnt),
1139              accum_tx->rx_detected_cnt,
1140              delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1141     pos += scnprintf(buf + pos, bufsz - pos,
1142              fmt_table, "bt_prio_defer_cnt:",
1143              le32_to_cpu(tx->bt_prio_defer_cnt),
1144              accum_tx->bt_prio_defer_cnt,
1145              delta_tx->bt_prio_defer_cnt,
1146              max_tx->bt_prio_defer_cnt);
1147     pos += scnprintf(buf + pos, bufsz - pos,
1148              fmt_table, "bt_prio_kill_cnt:",
1149              le32_to_cpu(tx->bt_prio_kill_cnt),
1150              accum_tx->bt_prio_kill_cnt,
1151              delta_tx->bt_prio_kill_cnt,
1152              max_tx->bt_prio_kill_cnt);
1153     pos += scnprintf(buf + pos, bufsz - pos,
1154              fmt_table, "few_bytes_cnt:",
1155              le32_to_cpu(tx->few_bytes_cnt),
1156              accum_tx->few_bytes_cnt,
1157              delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1158     pos += scnprintf(buf + pos, bufsz - pos,
1159              fmt_table, "cts_timeout:",
1160              le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1161              delta_tx->cts_timeout, max_tx->cts_timeout);
1162     pos += scnprintf(buf + pos, bufsz - pos,
1163              fmt_table, "ack_timeout:",
1164              le32_to_cpu(tx->ack_timeout),
1165              accum_tx->ack_timeout,
1166              delta_tx->ack_timeout, max_tx->ack_timeout);
1167     pos += scnprintf(buf + pos, bufsz - pos,
1168              fmt_table, "expected_ack_cnt:",
1169              le32_to_cpu(tx->expected_ack_cnt),
1170              accum_tx->expected_ack_cnt,
1171              delta_tx->expected_ack_cnt,
1172              max_tx->expected_ack_cnt);
1173     pos += scnprintf(buf + pos, bufsz - pos,
1174              fmt_table, "actual_ack_cnt:",
1175              le32_to_cpu(tx->actual_ack_cnt),
1176              accum_tx->actual_ack_cnt,
1177              delta_tx->actual_ack_cnt,
1178              max_tx->actual_ack_cnt);
1179     pos += scnprintf(buf + pos, bufsz - pos,
1180              fmt_table, "dump_msdu_cnt:",
1181              le32_to_cpu(tx->dump_msdu_cnt),
1182              accum_tx->dump_msdu_cnt,
1183              delta_tx->dump_msdu_cnt,
1184              max_tx->dump_msdu_cnt);
1185     pos += scnprintf(buf + pos, bufsz - pos,
1186              fmt_table, "abort_nxt_frame_mismatch:",
1187              le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1188              accum_tx->burst_abort_next_frame_mismatch_cnt,
1189              delta_tx->burst_abort_next_frame_mismatch_cnt,
1190              max_tx->burst_abort_next_frame_mismatch_cnt);
1191     pos += scnprintf(buf + pos, bufsz - pos,
1192              fmt_table, "abort_missing_nxt_frame:",
1193              le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1194              accum_tx->burst_abort_missing_next_frame_cnt,
1195              delta_tx->burst_abort_missing_next_frame_cnt,
1196              max_tx->burst_abort_missing_next_frame_cnt);
1197     pos += scnprintf(buf + pos, bufsz - pos,
1198              fmt_table, "cts_timeout_collision:",
1199              le32_to_cpu(tx->cts_timeout_collision),
1200              accum_tx->cts_timeout_collision,
1201              delta_tx->cts_timeout_collision,
1202              max_tx->cts_timeout_collision);
1203     pos += scnprintf(buf + pos, bufsz - pos,
1204              fmt_table, "ack_ba_timeout_collision:",
1205              le32_to_cpu(tx->ack_or_ba_timeout_collision),
1206              accum_tx->ack_or_ba_timeout_collision,
1207              delta_tx->ack_or_ba_timeout_collision,
1208              max_tx->ack_or_ba_timeout_collision);
1209     pos += scnprintf(buf + pos, bufsz - pos,
1210              fmt_table, "agg ba_timeout:",
1211              le32_to_cpu(tx->agg.ba_timeout),
1212              accum_tx->agg.ba_timeout,
1213              delta_tx->agg.ba_timeout,
1214              max_tx->agg.ba_timeout);
1215     pos += scnprintf(buf + pos, bufsz - pos,
1216              fmt_table, "agg ba_resched_frames:",
1217              le32_to_cpu(tx->agg.ba_reschedule_frames),
1218              accum_tx->agg.ba_reschedule_frames,
1219              delta_tx->agg.ba_reschedule_frames,
1220              max_tx->agg.ba_reschedule_frames);
1221     pos += scnprintf(buf + pos, bufsz - pos,
1222              fmt_table, "agg scd_query_agg_frame:",
1223              le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1224              accum_tx->agg.scd_query_agg_frame_cnt,
1225              delta_tx->agg.scd_query_agg_frame_cnt,
1226              max_tx->agg.scd_query_agg_frame_cnt);
1227     pos += scnprintf(buf + pos, bufsz - pos,
1228              fmt_table, "agg scd_query_no_agg:",
1229              le32_to_cpu(tx->agg.scd_query_no_agg),
1230              accum_tx->agg.scd_query_no_agg,
1231              delta_tx->agg.scd_query_no_agg,
1232              max_tx->agg.scd_query_no_agg);
1233     pos += scnprintf(buf + pos, bufsz - pos,
1234              fmt_table, "agg scd_query_agg:",
1235              le32_to_cpu(tx->agg.scd_query_agg),
1236              accum_tx->agg.scd_query_agg,
1237              delta_tx->agg.scd_query_agg,
1238              max_tx->agg.scd_query_agg);
1239     pos += scnprintf(buf + pos, bufsz - pos,
1240              fmt_table, "agg scd_query_mismatch:",
1241              le32_to_cpu(tx->agg.scd_query_mismatch),
1242              accum_tx->agg.scd_query_mismatch,
1243              delta_tx->agg.scd_query_mismatch,
1244              max_tx->agg.scd_query_mismatch);
1245     pos += scnprintf(buf + pos, bufsz - pos,
1246              fmt_table, "agg frame_not_ready:",
1247              le32_to_cpu(tx->agg.frame_not_ready),
1248              accum_tx->agg.frame_not_ready,
1249              delta_tx->agg.frame_not_ready,
1250              max_tx->agg.frame_not_ready);
1251     pos += scnprintf(buf + pos, bufsz - pos,
1252              fmt_table, "agg underrun:",
1253              le32_to_cpu(tx->agg.underrun),
1254              accum_tx->agg.underrun,
1255              delta_tx->agg.underrun, max_tx->agg.underrun);
1256     pos += scnprintf(buf + pos, bufsz - pos,
1257              fmt_table, "agg bt_prio_kill:",
1258              le32_to_cpu(tx->agg.bt_prio_kill),
1259              accum_tx->agg.bt_prio_kill,
1260              delta_tx->agg.bt_prio_kill,
1261              max_tx->agg.bt_prio_kill);
1262     pos += scnprintf(buf + pos, bufsz - pos,
1263              fmt_table, "agg rx_ba_rsp_cnt:",
1264              le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1265              accum_tx->agg.rx_ba_rsp_cnt,
1266              delta_tx->agg.rx_ba_rsp_cnt,
1267              max_tx->agg.rx_ba_rsp_cnt);
1268
1269     if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
1270         pos += scnprintf(buf + pos, bufsz - pos,
1271             "tx power: (1/2 dB step)\n");
1272         if ((priv->nvm_data->valid_tx_ant & ANT_A) &&
1273             tx->tx_power.ant_a)
1274             pos += scnprintf(buf + pos, bufsz - pos,
1275                     fmt_hex, "antenna A:",
1276                     tx->tx_power.ant_a);
1277         if ((priv->nvm_data->valid_tx_ant & ANT_B) &&
1278             tx->tx_power.ant_b)
1279             pos += scnprintf(buf + pos, bufsz - pos,
1280                     fmt_hex, "antenna B:",
1281                     tx->tx_power.ant_b);
1282         if ((priv->nvm_data->valid_tx_ant & ANT_C) &&
1283             tx->tx_power.ant_c)
1284             pos += scnprintf(buf + pos, bufsz - pos,
1285                     fmt_hex, "antenna C:",
1286                     tx->tx_power.ant_c);
1287     }
1288
1289     spin_unlock_bh(&priv->statistics.lock);
1290
1291     ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1292     kfree(buf);
1293     return ret;
1294 }
1295
1296 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1297                     char __user *user_buf,
1298                     size_t count, loff_t *ppos)
1299 {
1300     struct iwl_priv *priv = file->private_data;
1301     int pos = 0;
1302     char *buf;
1303     int bufsz = sizeof(struct statistics_general) * 10 + 300;
1304     ssize_t ret;
1305     struct statistics_general_common *general, *accum_general;
1306     struct statistics_general_common *delta_general, *max_general;
1307     struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1308     struct statistics_div *div, *accum_div, *delta_div, *max_div;
1309
1310     if (!iwl_is_alive(priv))
1311         return -EAGAIN;
1312
1313     buf = kzalloc(bufsz, GFP_KERNEL);
1314     if (!buf)
1315         return -ENOMEM;
1316
1317     /* the statistic information display here is based on
1318      * the last statistics notification from uCode
1319      * might not reflect the current uCode activity
1320      */
1321
1322     spin_lock_bh(&priv->statistics.lock);
1323
1324     general = &priv->statistics.common;
1325     dbg = &priv->statistics.common.dbg;
1326     div = &priv->statistics.common.div;
1327     accum_general = &priv->accum_stats.common;
1328     accum_dbg = &priv->accum_stats.common.dbg;
1329     accum_div = &priv->accum_stats.common.div;
1330     delta_general = &priv->delta_stats.common;
1331     max_general = &priv->max_delta_stats.common;
1332     delta_dbg = &priv->delta_stats.common.dbg;
1333     max_dbg = &priv->max_delta_stats.common.dbg;
1334     delta_div = &priv->delta_stats.common.div;
1335     max_div = &priv->max_delta_stats.common.div;
1336
1337     pos += iwl_statistics_flag(priv, buf, bufsz);
1338     pos += scnprintf(buf + pos, bufsz - pos,
1339              fmt_header, "Statistics_General:");
1340     pos += scnprintf(buf + pos, bufsz - pos,
1341              fmt_value, "temperature:",
1342              le32_to_cpu(general->temperature));
1343     pos += scnprintf(buf + pos, bufsz - pos,
1344              fmt_value, "temperature_m:",
1345              le32_to_cpu(general->temperature_m));
1346     pos += scnprintf(buf + pos, bufsz - pos,
1347              fmt_value, "ttl_timestamp:",
1348              le32_to_cpu(general->ttl_timestamp));
1349     pos += scnprintf(buf + pos, bufsz - pos,
1350              fmt_table, "burst_check:",
1351              le32_to_cpu(dbg->burst_check),
1352              accum_dbg->burst_check,
1353              delta_dbg->burst_check, max_dbg->burst_check);
1354     pos += scnprintf(buf + pos, bufsz - pos,
1355              fmt_table, "burst_count:",
1356              le32_to_cpu(dbg->burst_count),
1357              accum_dbg->burst_count,
1358              delta_dbg->burst_count, max_dbg->burst_count);
1359     pos += scnprintf(buf + pos, bufsz - pos,
1360              fmt_table, "wait_for_silence_timeout_count:",
1361              le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
1362              accum_dbg->wait_for_silence_timeout_cnt,
1363              delta_dbg->wait_for_silence_timeout_cnt,
1364              max_dbg->wait_for_silence_timeout_cnt);
1365     pos += scnprintf(buf + pos, bufsz - pos,
1366              fmt_table, "sleep_time:",
1367              le32_to_cpu(general->sleep_time),
1368              accum_general->sleep_time,
1369              delta_general->sleep_time, max_general->sleep_time);
1370     pos += scnprintf(buf + pos, bufsz - pos,
1371              fmt_table, "slots_out:",
1372              le32_to_cpu(general->slots_out),
1373              accum_general->slots_out,
1374              delta_general->slots_out, max_general->slots_out);
1375     pos += scnprintf(buf + pos, bufsz - pos,
1376              fmt_table, "slots_idle:",
1377              le32_to_cpu(general->slots_idle),
1378              accum_general->slots_idle,
1379              delta_general->slots_idle, max_general->slots_idle);
1380     pos += scnprintf(buf + pos, bufsz - pos,
1381              fmt_table, "tx_on_a:",
1382              le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1383              delta_div->tx_on_a, max_div->tx_on_a);
1384     pos += scnprintf(buf + pos, bufsz - pos,
1385              fmt_table, "tx_on_b:",
1386              le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1387              delta_div->tx_on_b, max_div->tx_on_b);
1388     pos += scnprintf(buf + pos, bufsz - pos,
1389              fmt_table, "exec_time:",
1390              le32_to_cpu(div->exec_time), accum_div->exec_time,
1391              delta_div->exec_time, max_div->exec_time);
1392     pos += scnprintf(buf + pos, bufsz - pos,
1393              fmt_table, "probe_time:",
1394              le32_to_cpu(div->probe_time), accum_div->probe_time,
1395              delta_div->probe_time, max_div->probe_time);
1396     pos += scnprintf(buf + pos, bufsz - pos,
1397              fmt_table, "rx_enable_counter:",
1398              le32_to_cpu(general->rx_enable_counter),
1399              accum_general->rx_enable_counter,
1400              delta_general->rx_enable_counter,
1401              max_general->rx_enable_counter);
1402     pos += scnprintf(buf + pos, bufsz - pos,
1403              fmt_table, "num_of_sos_states:",
1404              le32_to_cpu(general->num_of_sos_states),
1405              accum_general->num_of_sos_states,
1406              delta_general->num_of_sos_states,
1407              max_general->num_of_sos_states);
1408
1409     spin_unlock_bh(&priv->statistics.lock);
1410
1411     ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1412     kfree(buf);
1413     return ret;
1414 }
1415
1416 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1417                     char __user *user_buf,
1418                     size_t count, loff_t *ppos)
1419 {
1420     struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1421     int pos = 0;
1422     char *buf;
1423     int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
1424     ssize_t ret;
1425     struct statistics_bt_activity *bt, *accum_bt;
1426
1427     if (!iwl_is_alive(priv))
1428         return -EAGAIN;
1429
1430     if (!priv->bt_enable_flag)
1431         return -EINVAL;
1432
1433     /* make request to uCode to retrieve statistics information */
1434     mutex_lock(&priv->mutex);
1435     ret = iwl_send_statistics_request(priv, 0, false);
1436     mutex_unlock(&priv->mutex);
1437
1438     if (ret)
1439         return -EAGAIN;
1440     buf = kzalloc(bufsz, GFP_KERNEL);
1441     if (!buf)
1442         return -ENOMEM;
1443
1444     /*
1445      * the statistic information display here is based on
1446      * the last statistics notification from uCode
1447      * might not reflect the current uCode activity
1448      */
1449
1450     spin_lock_bh(&priv->statistics.lock);
1451
1452     bt = &priv->statistics.bt_activity;
1453     accum_bt = &priv->accum_stats.bt_activity;
1454
1455     pos += iwl_statistics_flag(priv, buf, bufsz);
1456     pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
1457     pos += scnprintf(buf + pos, bufsz - pos,
1458             "\t\t\tcurrent\t\t\taccumulative\n");
1459     pos += scnprintf(buf + pos, bufsz - pos,
1460              "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1461              le32_to_cpu(bt->hi_priority_tx_req_cnt),
1462              accum_bt->hi_priority_tx_req_cnt);
1463     pos += scnprintf(buf + pos, bufsz - pos,
1464              "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1465              le32_to_cpu(bt->hi_priority_tx_denied_cnt),
1466              accum_bt->hi_priority_tx_denied_cnt);
1467     pos += scnprintf(buf + pos, bufsz - pos,
1468              "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1469              le32_to_cpu(bt->lo_priority_tx_req_cnt),
1470              accum_bt->lo_priority_tx_req_cnt);
1471     pos += scnprintf(buf + pos, bufsz - pos,
1472              "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1473              le32_to_cpu(bt->lo_priority_tx_denied_cnt),
1474              accum_bt->lo_priority_tx_denied_cnt);
1475     pos += scnprintf(buf + pos, bufsz - pos,
1476              "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1477              le32_to_cpu(bt->hi_priority_rx_req_cnt),
1478              accum_bt->hi_priority_rx_req_cnt);
1479     pos += scnprintf(buf + pos, bufsz - pos,
1480              "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1481              le32_to_cpu(bt->hi_priority_rx_denied_cnt),
1482              accum_bt->hi_priority_rx_denied_cnt);
1483     pos += scnprintf(buf + pos, bufsz - pos,
1484              "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1485              le32_to_cpu(bt->lo_priority_rx_req_cnt),
1486              accum_bt->lo_priority_rx_req_cnt);
1487     pos += scnprintf(buf + pos, bufsz - pos,
1488              "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1489              le32_to_cpu(bt->lo_priority_rx_denied_cnt),
1490              accum_bt->lo_priority_rx_denied_cnt);
1491
1492     pos += scnprintf(buf + pos, bufsz - pos,
1493              "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
1494              le32_to_cpu(priv->statistics.num_bt_kills),
1495              priv->statistics.accum_num_bt_kills);
1496
1497     spin_unlock_bh(&priv->statistics.lock);
1498
1499     ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1500     kfree(buf);
1501     return ret;
1502 }
1503
1504 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1505                     char __user *user_buf,
1506                     size_t count, loff_t *ppos)
1507 {
1508     struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1509     int pos = 0;
1510     char *buf;
1511     int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
1512         (sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
1513     ssize_t ret;
1514
1515     if (!iwl_is_alive(priv))
1516         return -EAGAIN;
1517
1518     buf = kzalloc(bufsz, GFP_KERNEL);
1519     if (!buf)
1520         return -ENOMEM;
1521
1522     pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
1523     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
1524              iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1525              priv->reply_tx_stats.pp_delay);
1526     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1527              iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1528              priv->reply_tx_stats.pp_few_bytes);
1529     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1530              iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1531              priv->reply_tx_stats.pp_bt_prio);
1532     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1533              iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1534              priv->reply_tx_stats.pp_quiet_period);
1535     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1536              iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1537              priv->reply_tx_stats.pp_calc_ttak);
1538     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1539              iwl_get_tx_fail_reason(
1540                 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1541              priv->reply_tx_stats.int_crossed_retry);
1542     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1543              iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1544              priv->reply_tx_stats.short_limit);
1545     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1546              iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1547              priv->reply_tx_stats.long_limit);
1548     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1549              iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1550              priv->reply_tx_stats.fifo_underrun);
1551     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1552              iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1553              priv->reply_tx_stats.drain_flow);
1554     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1555              iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1556              priv->reply_tx_stats.rfkill_flush);
1557     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1558              iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1559              priv->reply_tx_stats.life_expire);
1560     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1561              iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1562              priv->reply_tx_stats.dest_ps);
1563     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1564              iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1565              priv->reply_tx_stats.host_abort);
1566     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1567              iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1568              priv->reply_tx_stats.pp_delay);
1569     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1570              iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1571              priv->reply_tx_stats.sta_invalid);
1572     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1573              iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1574              priv->reply_tx_stats.frag_drop);
1575     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1576              iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1577              priv->reply_tx_stats.tid_disable);
1578     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1579              iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1580              priv->reply_tx_stats.fifo_flush);
1581     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1582              iwl_get_tx_fail_reason(
1583                 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1584              priv->reply_tx_stats.insuff_cf_poll);
1585     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1586              iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1587              priv->reply_tx_stats.fail_hw_drop);
1588     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1589              iwl_get_tx_fail_reason(
1590                 TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1591              priv->reply_tx_stats.sta_color_mismatch);
1592     pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1593              priv->reply_tx_stats.unknown);
1594
1595     pos += scnprintf(buf + pos, bufsz - pos,
1596              "\nStatistics_Agg_TX_Error:\n");
1597
1598     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1599              iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1600              priv->reply_agg_tx_stats.underrun);
1601     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1602              iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1603              priv->reply_agg_tx_stats.bt_prio);
1604     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1605              iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1606              priv->reply_agg_tx_stats.few_bytes);
1607     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1608              iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
1609              priv->reply_agg_tx_stats.abort);
1610     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1611              iwl_get_agg_tx_fail_reason(
1612                 AGG_TX_STATE_LAST_SENT_TTL_MSK),
1613              priv->reply_agg_tx_stats.last_sent_ttl);
1614     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1615              iwl_get_agg_tx_fail_reason(
1616                 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK),
1617              priv->reply_agg_tx_stats.last_sent_try);
1618     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1619              iwl_get_agg_tx_fail_reason(
1620                 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
1621              priv->reply_agg_tx_stats.last_sent_bt_kill);
1622     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1623              iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
1624              priv->reply_agg_tx_stats.scd_query);
1625     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1626              iwl_get_agg_tx_fail_reason(
1627                 AGG_TX_STATE_TEST_BAD_CRC32_MSK),
1628              priv->reply_agg_tx_stats.bad_crc32);
1629     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1630              iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
1631              priv->reply_agg_tx_stats.response);
1632     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1633              iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
1634              priv->reply_agg_tx_stats.dump_tx);
1635     pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1636              iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
1637              priv->reply_agg_tx_stats.delay_tx);
1638     pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1639              priv->reply_agg_tx_stats.unknown);
1640
1641     ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1642     kfree(buf);
1643     return ret;
1644 }
1645
1646 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1647                     char __user *user_buf,
1648                     size_t count, loff_t *ppos) {
1649
1650     struct iwl_priv *priv = file->private_data;
1651     int pos = 0;
1652     int cnt = 0;
1653     char *buf;
1654     int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1655     ssize_t ret;
1656     struct iwl_sensitivity_data *data;
1657
1658     data = &priv->sensitivity_data;
1659     buf = kzalloc(bufsz, GFP_KERNEL);
1660     if (!buf)
1661         return -ENOMEM;
1662
1663     pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1664             data->auto_corr_ofdm);
1665     pos += scnprintf(buf + pos, bufsz - pos,
1666             "auto_corr_ofdm_mrc:\t\t %u\n",
1667             data->auto_corr_ofdm_mrc);
1668     pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1669             data->auto_corr_ofdm_x1);
1670     pos += scnprintf(buf + pos, bufsz - pos,
1671             "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1672             data->auto_corr_ofdm_mrc_x1);
1673     pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1674             data->auto_corr_cck);
1675     pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1676             data->auto_corr_cck_mrc);
1677     pos += scnprintf(buf + pos, bufsz - pos,
1678             "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1679             data->last_bad_plcp_cnt_ofdm);
1680     pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1681             data->last_fa_cnt_ofdm);
1682     pos += scnprintf(buf + pos, bufsz - pos,
1683             "last_bad_plcp_cnt_cck:\t\t %u\n",
1684             data->last_bad_plcp_cnt_cck);
1685     pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1686             data->last_fa_cnt_cck);
1687     pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1688             data->nrg_curr_state);
1689     pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1690             data->nrg_prev_state);
1691     pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1692     for (cnt = 0; cnt < 10; cnt++) {
1693         pos += scnprintf(buf + pos, bufsz - pos, " %u",
1694                 data->nrg_value[cnt]);
1695     }
1696     pos += scnprintf(buf + pos, bufsz - pos, "\n");
1697     pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1698     for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1699         pos += scnprintf(buf + pos, bufsz - pos, " %u",
1700                 data->nrg_silence_rssi[cnt]);
1701     }
1702     pos += scnprintf(buf + pos, bufsz - pos, "\n");
1703     pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1704             data->nrg_silence_ref);
1705     pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1706             data->nrg_energy_idx);
1707     pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1708             data->nrg_silence_idx);
1709     pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1710             data->nrg_th_cck);
1711     pos += scnprintf(buf + pos, bufsz - pos,
1712             "nrg_auto_corr_silence_diff:\t %u\n",
1713             data->nrg_auto_corr_silence_diff);
1714     pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1715             data->num_in_cck_no_fa);
1716     pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1717             data->nrg_th_ofdm);
1718
1719     ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1720     kfree(buf);
1721     return ret;
1722 }
1723
1724
1725 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1726                     char __user *user_buf,
1727                     size_t count, loff_t *ppos) {
1728
1729     struct iwl_priv *priv = file->private_data;
1730     int pos = 0;
1731     int cnt = 0;
1732     char *buf;
1733     int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1734     ssize_t ret;
1735     struct iwl_chain_noise_data *data;
1736
1737     data = &priv->chain_noise_data;
1738     buf = kzalloc(bufsz, GFP_KERNEL);
1739     if (!buf)
1740         return -ENOMEM;
1741
1742     pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1743             data->active_chains);
1744     pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1745             data->chain_noise_a);
1746     pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1747             data->chain_noise_b);
1748     pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1749             data->chain_noise_c);
1750     pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1751             data->chain_signal_a);
1752     pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1753             data->chain_signal_b);
1754     pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1755             data->chain_signal_c);
1756     pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1757             data->beacon_count);
1758
1759     pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1760     for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1761         pos += scnprintf(buf + pos, bufsz - pos, " %u",
1762                 data->disconn_array[cnt]);
1763     }
1764     pos += scnprintf(buf + pos, bufsz - pos, "\n");
1765     pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1766     for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1767         pos += scnprintf(buf + pos, bufsz - pos, " %u",
1768                 data->delta_gain_code[cnt]);
1769     }
1770     pos += scnprintf(buf + pos, bufsz - pos, "\n");
1771     pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1772             data->radio_write);
1773     pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1774             data->state);
1775
1776     ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1777     kfree(buf);
1778     return ret;
1779 }
1780
1781 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1782                             char __user *user_buf,
1783                             size_t count, loff_t *ppos)
1784 {
1785     struct iwl_priv *priv = file->private_data;
1786     char buf[60];
1787     int pos = 0;
1788     const size_t bufsz = sizeof(buf);
1789     u32 pwrsave_status;
1790
1791     pwrsave_status = iwl_read32(priv->trans, CSR_GP_CNTRL) &
1792             CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1793
1794     pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1795     pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1796         (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1797         (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1798         (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1799         "error");
1800
1801     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1802 }
1803
1804 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1805                      const char __user *user_buf,
1806                      size_t count, loff_t *ppos)
1807 {
1808     struct iwl_priv *priv = file->private_data;
1809     char buf[8];
1810     int buf_size;
1811     int clear;
1812
1813     memset(buf, 0, sizeof(buf));
1814     buf_size = min(count, sizeof(buf) -  1);
1815     if (copy_from_user(buf, user_buf, buf_size))
1816         return -EFAULT;
1817     if (sscanf(buf, "%d", &clear) != 1)
1818         return -EFAULT;
1819
1820     /* make request to uCode to retrieve statistics information */
1821     mutex_lock(&priv->mutex);
1822     iwl_send_statistics_request(priv, 0, true);
1823     mutex_unlock(&priv->mutex);
1824
1825     return count;
1826 }
1827
1828 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1829                     char __user *user_buf,
1830                     size_t count, loff_t *ppos) {
1831
1832     struct iwl_priv *priv = file->private_data;
1833     int pos = 0;
1834     char buf[128];
1835     const size_t bufsz = sizeof(buf);
1836
1837     pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1838             priv->event_log.ucode_trace ? "On" : "Off");
1839     pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1840             priv->event_log.non_wraps_count);
1841     pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1842             priv->event_log.wraps_once_count);
1843     pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1844             priv->event_log.wraps_more_count);
1845
1846     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1847 }
1848
1849 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1850                      const char __user *user_buf,
1851                      size_t count, loff_t *ppos)
1852 {
1853     struct iwl_priv *priv = file->private_data;
1854     char buf[8];
1855     int buf_size;
1856     int trace;
1857
1858     memset(buf, 0, sizeof(buf));
1859     buf_size = min(count, sizeof(buf) -  1);
1860     if (copy_from_user(buf, user_buf, buf_size))
1861         return -EFAULT;
1862     if (sscanf(buf, "%d", &trace) != 1)
1863         return -EFAULT;
1864
1865     if (trace) {
1866         priv->event_log.ucode_trace = true;
1867         if (iwl_is_alive(priv)) {
1868             /* start collecting data now */
1869             mod_timer(&priv->ucode_trace, jiffies);
1870         }
1871     } else {
1872         priv->event_log.ucode_trace = false;
1873         del_timer_sync(&priv->ucode_trace);
1874     }
1875
1876     return count;
1877 }
1878
1879 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1880                      char __user *user_buf,
1881                      size_t count, loff_t *ppos) {
1882
1883     struct iwl_priv *priv = file->private_data;
1884     int len = 0;
1885     char buf[20];
1886
1887     len = sprintf(buf, "0x%04X\n",
1888         le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1889     return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1890 }
1891
1892 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1893                         char __user *user_buf,
1894                         size_t count, loff_t *ppos) {
1895
1896     struct iwl_priv *priv = file->private_data;
1897     int len = 0;
1898     char buf[20];
1899
1900     len = sprintf(buf, "0x%04X\n",
1901         le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1902     return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1903 }
1904
1905 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1906                     char __user *user_buf,
1907                     size_t count, loff_t *ppos) {
1908
1909     struct iwl_priv *priv = file->private_data;
1910     int pos = 0;
1911     char buf[12];
1912     const size_t bufsz = sizeof(buf);
1913
1914     pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1915             priv->missed_beacon_threshold);
1916
1917     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1918 }
1919
1920 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1921                      const char __user *user_buf,
1922                      size_t count, loff_t *ppos)
1923 {
1924     struct iwl_priv *priv = file->private_data;
1925     char buf[8];
1926     int buf_size;
1927     int missed;
1928
1929     memset(buf, 0, sizeof(buf));
1930     buf_size = min(count, sizeof(buf) -  1);
1931     if (copy_from_user(buf, user_buf, buf_size))
1932         return -EFAULT;
1933     if (sscanf(buf, "%d", &missed) != 1)
1934         return -EINVAL;
1935
1936     if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1937         missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1938         priv->missed_beacon_threshold =
1939             IWL_MISSED_BEACON_THRESHOLD_DEF;
1940     else
1941         priv->missed_beacon_threshold = missed;
1942
1943     return count;
1944 }
1945
1946 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1947                     char __user *user_buf,
1948                     size_t count, loff_t *ppos) {
1949
1950     struct iwl_priv *priv = file->private_data;
1951     int pos = 0;
1952     char buf[12];
1953     const size_t bufsz = sizeof(buf);
1954
1955     pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1956             priv->plcp_delta_threshold);
1957
1958     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1959 }
1960
1961 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1962                     const char __user *user_buf,
1963                     size_t count, loff_t *ppos) {
1964
1965     struct iwl_priv *priv = file->private_data;
1966     char buf[8];
1967     int buf_size;
1968     int plcp;
1969
1970     memset(buf, 0, sizeof(buf));
1971     buf_size = min(count, sizeof(buf) -  1);
1972     if (copy_from_user(buf, user_buf, buf_size))
1973         return -EFAULT;
1974     if (sscanf(buf, "%d", &plcp) != 1)
1975         return -EINVAL;
1976     if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1977         (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1978         priv->plcp_delta_threshold =
1979             IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
1980     else
1981         priv->plcp_delta_threshold = plcp;
1982     return count;
1983 }
1984
1985 static ssize_t iwl_dbgfs_rf_reset_read(struct file *file,
1986                        char __user *user_buf,
1987                        size_t count, loff_t *ppos)
1988 {
1989     struct iwl_priv *priv = file->private_data;
1990     int pos = 0;
1991     char buf[300];
1992     const size_t bufsz = sizeof(buf);
1993     struct iwl_rf_reset *rf_reset = &priv->rf_reset;
1994
1995     pos += scnprintf(buf + pos, bufsz - pos,
1996             "RF reset statistics\n");
1997     pos += scnprintf(buf + pos, bufsz - pos,
1998             "\tnumber of reset request: %d\n",
1999             rf_reset->reset_request_count);
2000     pos += scnprintf(buf + pos, bufsz - pos,
2001             "\tnumber of reset request success: %d\n",
2002             rf_reset->reset_success_count);
2003     pos += scnprintf(buf + pos, bufsz - pos,
2004             "\tnumber of reset request reject: %d\n",
2005             rf_reset->reset_reject_count);
2006
2007     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2008 }
2009
2010 static ssize_t iwl_dbgfs_rf_reset_write(struct file *file,
2011                     const char __user *user_buf,
2012                     size_t count, loff_t *ppos) {
2013
2014     struct iwl_priv *priv = file->private_data;
2015     int ret;
2016
2017     ret = iwl_force_rf_reset(priv, true);
2018     return ret ? ret : count;
2019 }
2020
2021 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
2022                     const char __user *user_buf,
2023                     size_t count, loff_t *ppos) {
2024
2025     struct iwl_priv *priv = file->private_data;
2026     char buf[8];
2027     int buf_size;
2028     int flush;
2029
2030     memset(buf, 0, sizeof(buf));
2031     buf_size = min(count, sizeof(buf) -  1);
2032     if (copy_from_user(buf, user_buf, buf_size))
2033         return -EFAULT;
2034     if (sscanf(buf, "%d", &flush) != 1)
2035         return -EINVAL;
2036
2037     if (iwl_is_rfkill(priv))
2038         return -EFAULT;
2039
2040     iwlagn_dev_txfifo_flush(priv);
2041
2042     return count;
2043 }
2044
2045 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
2046                     char __user *user_buf,
2047                     size_t count, loff_t *ppos) {
2048
2049     struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2050     int pos = 0;
2051     char buf[200];
2052     const size_t bufsz = sizeof(buf);
2053
2054     if (!priv->bt_enable_flag) {
2055         pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2056         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2057     }
2058     pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
2059         priv->bt_enable_flag);
2060     pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
2061         priv->bt_full_concurrent ? "full concurrency" : "3-wire");
2062     pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
2063              "last traffic notif: %d\n",
2064         priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2065     pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2066              "kill_ack_mask: %x, kill_cts_mask: %x\n",
2067         priv->bt_ch_announce, priv->kill_ack_mask,
2068         priv->kill_cts_mask);
2069
2070     pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
2071     switch (priv->bt_traffic_load) {
2072     case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
2073         pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
2074         break;
2075     case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
2076         pos += scnprintf(buf + pos, bufsz - pos, "High\n");
2077         break;
2078     case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
2079         pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
2080         break;
2081     case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
2082     default:
2083         pos += scnprintf(buf + pos, bufsz - pos, "None\n");
2084         break;
2085     }
2086
2087     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2088 }
2089
2090 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
2091                     char __user *user_buf,
2092                     size_t count, loff_t *ppos)
2093 {
2094     struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2095
2096     int pos = 0;
2097     char buf[40];
2098     const size_t bufsz = sizeof(buf);
2099
2100     if (priv->cfg->ht_params)
2101         pos += scnprintf(buf + pos, bufsz - pos,
2102              "use %s for aggregation\n",
2103              (priv->hw_params.use_rts_for_aggregation) ?
2104                 "rts/cts" : "cts-to-self");
2105     else
2106         pos += scnprintf(buf + pos, bufsz - pos, "N/A");
2107
2108     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2109 }
2110
2111 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
2112                     const char __user *user_buf,
2113                     size_t count, loff_t *ppos) {
2114
2115     struct iwl_priv *priv = file->private_data;
2116     char buf[8];
2117     int buf_size;
2118     int rts;
2119
2120     if (!priv->cfg->ht_params)
2121         return -EINVAL;
2122
2123     memset(buf, 0, sizeof(buf));
2124     buf_size = min(count, sizeof(buf) -  1);
2125     if (copy_from_user(buf, user_buf, buf_size))
2126         return -EFAULT;
2127     if (sscanf(buf, "%d", &rts) != 1)
2128         return -EINVAL;
2129     if (rts)
2130         priv->hw_params.use_rts_for_aggregation = true;
2131     else
2132         priv->hw_params.use_rts_for_aggregation = false;
2133     return count;
2134 }
2135
2136 static int iwl_cmd_echo_test(struct iwl_priv *priv)
2137 {
2138     int ret;
2139     struct iwl_host_cmd cmd = {
2140         .id = REPLY_ECHO,
2141         .len = { 0 },
2142     };
2143
2144     ret = iwl_dvm_send_cmd(priv, &cmd);
2145     if (ret)
2146         IWL_ERR(priv, "echo testing fail: 0X%x\n", ret);
2147     else
2148         IWL_DEBUG_INFO(priv, "echo testing pass\n");
2149     return ret;
2150 }
2151
2152 static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
2153                     const char __user *user_buf,
2154                     size_t count, loff_t *ppos)
2155 {
2156     struct iwl_priv *priv = file->private_data;
2157     char buf[8];
2158     int buf_size;
2159
2160     memset(buf, 0, sizeof(buf));
2161     buf_size = min(count, sizeof(buf) -  1);
2162     if (copy_from_user(buf, user_buf, buf_size))
2163         return -EFAULT;
2164
2165     iwl_cmd_echo_test(priv);
2166     return count;
2167 }
2168
2169 #ifdef CONFIG_IWLWIFI_DEBUG
2170 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
2171                      char __user *user_buf,
2172                      size_t count, loff_t *ppos)
2173 {
2174     struct iwl_priv *priv = file->private_data;
2175     char *buf = NULL;
2176     ssize_t ret;
2177
2178     ret = iwl_dump_nic_event_log(priv, true, &buf);
2179     if (ret > 0)
2180         ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
2181     kfree(buf);
2182     return ret;
2183 }
2184
2185 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
2186                     const char __user *user_buf,
2187                     size_t count, loff_t *ppos)
2188 {
2189     struct iwl_priv *priv = file->private_data;
2190     u32 event_log_flag;
2191     char buf[8];
2192     int buf_size;
2193
2194     /* check that the interface is up */
2195     if (!iwl_is_ready(priv))
2196         return -EAGAIN;
2197
2198     memset(buf, 0, sizeof(buf));
2199     buf_size = min(count, sizeof(buf) -  1);
2200     if (copy_from_user(buf, user_buf, buf_size))
2201         return -EFAULT;
2202     if (sscanf(buf, "%u", &event_log_flag) != 1)
2203         return -EFAULT;
2204     if (event_log_flag == 1)
2205         iwl_dump_nic_event_log(priv, true, NULL);
2206
2207     return count;
2208 }
2209 #endif
2210
2211 static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file,
2212                      char __user *user_buf,
2213                      size_t count, loff_t *ppos)
2214 {
2215     struct iwl_priv *priv = file->private_data;
2216     char buf[120];
2217     int pos = 0;
2218     const size_t bufsz = sizeof(buf);
2219
2220     pos += scnprintf(buf + pos, bufsz - pos,
2221              "Sensitivity calibrations %s\n",
2222              (priv->calib_disabled &
2223                     IWL_SENSITIVITY_CALIB_DISABLED) ?
2224              "DISABLED" : "ENABLED");
2225     pos += scnprintf(buf + pos, bufsz - pos,
2226              "Chain noise calibrations %s\n",
2227              (priv->calib_disabled &
2228                     IWL_CHAIN_NOISE_CALIB_DISABLED) ?
2229              "DISABLED" : "ENABLED");
2230     pos += scnprintf(buf + pos, bufsz - pos,
2231              "Tx power calibrations %s\n",
2232              (priv->calib_disabled &
2233                     IWL_TX_POWER_CALIB_DISABLED) ?
2234              "DISABLED" : "ENABLED");
2235
2236     return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2237 }
2238
2239 static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
2240                           const char __user *user_buf,
2241                           size_t count, loff_t *ppos)
2242 {
2243     struct iwl_priv *priv = file->private_data;
2244     char buf[8];
2245     u32 calib_disabled;
2246     int buf_size;
2247
2248     memset(buf, 0, sizeof(buf));
2249     buf_size = min(count, sizeof(buf) - 1);
2250     if (copy_from_user(buf, user_buf, buf_size))
2251         return -EFAULT;
2252     if (sscanf(buf, "%x", &calib_disabled) != 1)
2253         return -EFAULT;
2254
2255     priv->calib_disabled = calib_disabled;
2256
2257     return count;
2258 }
2259
2260 static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
2261                       const char __user *user_buf,
2262                       size_t count, loff_t *ppos)
2263 {
2264     struct iwl_priv *priv = file->private_data;
2265     bool fw_restart = iwlwifi_mod_params.fw_restart;
2266     int __maybe_unused ret;
2267
2268     iwlwifi_mod_params.fw_restart = true;
2269
2270     mutex_lock(&priv->mutex);
2271
2272     /* take the return value to make compiler happy - it will fail anyway */
2273     ret = iwl_dvm_send_cmd_pdu(priv, REPLY_ERROR, 0, 0, NULL);
2274
2275     mutex_unlock(&priv->mutex);
2276
2277     iwlwifi_mod_params.fw_restart = fw_restart;
2278
2279     return count;
2280 }
2281
2282 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2283 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2284 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2285 DEBUGFS_READ_FILE_OPS(sensitivity);
2286 DEBUGFS_READ_FILE_OPS(chain_noise);
2287 DEBUGFS_READ_FILE_OPS(power_save_status);
2288 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2289 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2290 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2291 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2292 DEBUGFS_READ_WRITE_FILE_OPS(rf_reset);
2293 DEBUGFS_READ_FILE_OPS(rxon_flags);
2294 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2295 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2296 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2297 DEBUGFS_READ_FILE_OPS(bt_traffic);
2298 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2299 DEBUGFS_READ_FILE_OPS(reply_tx_error);
2300 DEBUGFS_WRITE_FILE_OPS(echo_test);
2301 DEBUGFS_WRITE_FILE_OPS(fw_restart);
2302 #ifdef CONFIG_IWLWIFI_DEBUG
2303 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
2304 #endif
2305 DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
2306
2307 /*
2308  * Create the debugfs files and directories
2309  *
2310  */
2311 void iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
2312 {
2313     struct dentry *dir_data, *dir_rf, *dir_debug;
2314
2315     priv->debugfs_dir = dbgfs_dir;
2316
2317     dir_data = debugfs_create_dir("data", dbgfs_dir);
2318     dir_rf = debugfs_create_dir("rf", dbgfs_dir);
2319     dir_debug = debugfs_create_dir("debug", dbgfs_dir);
2320
2321     DEBUGFS_ADD_FILE(nvm, dir_data, 0400);
2322     DEBUGFS_ADD_FILE(sram, dir_data, 0600);
2323     DEBUGFS_ADD_FILE(wowlan_sram, dir_data, 0400);
2324     DEBUGFS_ADD_FILE(stations, dir_data, 0400);
2325     DEBUGFS_ADD_FILE(channels, dir_data, 0400);
2326     DEBUGFS_ADD_FILE(status, dir_data, 0400);
2327     DEBUGFS_ADD_FILE(rx_handlers, dir_data, 0600);
2328     DEBUGFS_ADD_FILE(qos, dir_data, 0400);
2329     DEBUGFS_ADD_FILE(sleep_level_override, dir_data, 0600);
2330     DEBUGFS_ADD_FILE(current_sleep_command, dir_data, 0400);
2331     DEBUGFS_ADD_FILE(thermal_throttling, dir_data, 0400);
2332     DEBUGFS_ADD_FILE(disable_ht40, dir_data, 0600);
2333     DEBUGFS_ADD_FILE(temperature, dir_data, 0400);
2334
2335     DEBUGFS_ADD_FILE(power_save_status, dir_debug, 0400);
2336     DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, 0200);
2337     DEBUGFS_ADD_FILE(missed_beacon, dir_debug, 0200);
2338     DEBUGFS_ADD_FILE(plcp_delta, dir_debug, 0600);
2339     DEBUGFS_ADD_FILE(rf_reset, dir_debug, 0600);
2340     DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, 0400);
2341     DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, 0400);
2342     DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, 0400);
2343     DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, 0200);
2344     DEBUGFS_ADD_FILE(protection_mode, dir_debug, 0600);
2345     DEBUGFS_ADD_FILE(sensitivity, dir_debug, 0400);
2346     DEBUGFS_ADD_FILE(chain_noise, dir_debug, 0400);
2347     DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, 0600);
2348     DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, 0400);
2349     DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, 0400);
2350     DEBUGFS_ADD_FILE(rxon_flags, dir_debug, 0200);
2351     DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, 0200);
2352     DEBUGFS_ADD_FILE(echo_test, dir_debug, 0200);
2353     DEBUGFS_ADD_FILE(fw_restart, dir_debug, 0200);
2354 #ifdef CONFIG_IWLWIFI_DEBUG
2355     DEBUGFS_ADD_FILE(log_event, dir_debug, 0600);
2356 #endif
2357
2358     if (iwl_advanced_bt_coexist(priv))
2359         DEBUGFS_ADD_FILE(bt_traffic, dir_debug, 0400);
2360
2361     /* Calibrations disabled/enabled status*/
2362     DEBUGFS_ADD_FILE(calib_disabled, dir_rf, 0600);
2363
2364     /*
2365      * Create a symlink with mac80211. This is not very robust, as it does
2366      * not remove the symlink created. The implicit assumption is that
2367      * when the opmode exits, mac80211 will also exit, and will remove
2368      * this symlink as part of its cleanup.
2369      */
2370     if (priv->mac80211_registered) {
2371         char buf[100];
2372         struct dentry *mac80211_dir, *dev_dir;
2373
2374         dev_dir = dbgfs_dir->d_parent;
2375         mac80211_dir = priv->hw->wiphy->debugfsdir;
2376
2377         snprintf(buf, 100, "../../%pd2", dev_dir);
2378
2379         debugfs_create_symlink("iwlwifi", mac80211_dir, buf);
2380     }
2381 }