Pileus Git - ~andy/linux/blob - drivers/net/wireless/iwlwifi/mvm/debugfs.c

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of version 2 of the GNU General Public License as
  12  * published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  22  * USA
  23  *
  24  * The full GNU General Public License is included in this distribution
  25  * in the file called COPYING.
  26  *
  27  * Contact Information:
  28  *  Intel Linux Wireless <ilw@linux.intel.com>
  29  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  30  *
  31  * BSD LICENSE
  32  *
  33  * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
  34  * All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  *
  40  *  * Redistributions of source code must retain the above copyright
  41  *    notice, this list of conditions and the following disclaimer.
  42  *  * Redistributions in binary form must reproduce the above copyright
  43  *    notice, this list of conditions and the following disclaimer in
  44  *    the documentation and/or other materials provided with the
  45  *    distribution.
  46  *  * Neither the name Intel Corporation nor the names of its
  47  *    contributors may be used to endorse or promote products derived
  48  *    from this software without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  51  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  52  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  53  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  54  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  55  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  56  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  57  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  58  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  59  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  60  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61  *
  62  *****************************************************************************/
  63 #include "mvm.h"
  64 #include "sta.h"
  65 #include "iwl-io.h"
  66 #include "iwl-prph.h"
  67 #include "debugfs.h"
  68
  69 static ssize_t iwl_dbgfs_tx_flush_write(struct file *file,
  70                                         const char __user *user_buf,
  71                                         size_t count, loff_t *ppos)
  72 {
  73         struct iwl_mvm *mvm = file->private_data;
  74         char buf[16] = {};
  75         size_t buf_size = min(count, sizeof(buf) - 1);
  76         int ret;
  77         u32 scd_q_msk;
  78
  79         if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
  80                 return -EIO;
  81
  82         if (copy_from_user(buf, user_buf, buf_size))
  83                 return -EFAULT;
  84
  85         if (sscanf(buf, "%x", &scd_q_msk) != 1)
  86                 return -EINVAL;
  87
  88         IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
  89
  90         mutex_lock(&mvm->mutex);
  91         ret =  iwl_mvm_flush_tx_path(mvm, scd_q_msk, true) ? : count;
  92         mutex_unlock(&mvm->mutex);
  93
  94         return ret;
  95 }
  96
  97 static ssize_t iwl_dbgfs_sta_drain_write(struct file *file,
  98                                          const char __user *user_buf,
  99                                          size_t count, loff_t *ppos)
 100 {
 101         struct iwl_mvm *mvm = file->private_data;
 102         struct ieee80211_sta *sta;
 103         char buf[8] = {};
 104         size_t buf_size = min(count, sizeof(buf) - 1);
 105         int sta_id, drain, ret;
 106
 107         if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
 108                 return -EIO;
 109
 110         if (copy_from_user(buf, user_buf, buf_size))
 111                 return -EFAULT;
 112
 113         if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
 114                 return -EINVAL;
 115         if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
 116                 return -EINVAL;
 117         if (drain < 0 || drain > 1)
 118                 return -EINVAL;
 119
 120         mutex_lock(&mvm->mutex);
 121
 122         sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
 123                                         lockdep_is_held(&mvm->mutex));
 124         if (IS_ERR_OR_NULL(sta))
 125                 ret = -ENOENT;
 126         else
 127                 ret = iwl_mvm_drain_sta(mvm, (void *)sta->drv_priv, drain) ? :
 128                         count;
 129
 130         mutex_unlock(&mvm->mutex);
 131
 132         return ret;
 133 }
 134
 135 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
 136                                    size_t count, loff_t *ppos)
 137 {
 138         struct iwl_mvm *mvm = file->private_data;
 139         const struct fw_img *img;
 140         int ofs, len, pos = 0;
 141         size_t bufsz, ret;
 142         char *buf;
 143         u8 *ptr;
 144
 145         if (!mvm->ucode_loaded)
 146                 return -EINVAL;
 147
 148         /* default is to dump the entire data segment */
 149         if (!mvm->dbgfs_sram_offset && !mvm->dbgfs_sram_len) {
 150                 img = &mvm->fw->img[mvm->cur_ucode];
 151                 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
 152                 len = img->sec[IWL_UCODE_SECTION_DATA].len;
 153         } else {
 154                 ofs = mvm->dbgfs_sram_offset;
 155                 len = mvm->dbgfs_sram_len;
 156         }
 157
 158         bufsz = len * 4 + 256;
 159         buf = kzalloc(bufsz, GFP_KERNEL);
 160         if (!buf)
 161                 return -ENOMEM;
 162
 163         ptr = kzalloc(len, GFP_KERNEL);
 164         if (!ptr) {
 165                 kfree(buf);
 166                 return -ENOMEM;
 167         }
 168
 169         pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n", len);
 170         pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n", ofs);
 171
 172         iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
 173         for (ofs = 0; ofs < len; ofs += 16) {
 174                 pos += scnprintf(buf + pos, bufsz - pos, "0x%.4x ", ofs);
 175                 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
 176                                    bufsz - pos, false);
 177                 pos += strlen(buf + pos);
 178                 if (bufsz - pos > 0)
 179                         buf[pos++] = '\n';
 180         }
 181
 182         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 183
 184         kfree(buf);
 185         kfree(ptr);
 186
 187         return ret;
 188 }
 189
 190 static ssize_t iwl_dbgfs_sram_write(struct file *file,
 191                                     const char __user *user_buf, size_t count,
 192                                     loff_t *ppos)
 193 {
 194         struct iwl_mvm *mvm = file->private_data;
 195         char buf[64] = {};
 196         size_t buf_size = min(count, sizeof(buf) -  1);
 197         u32 offset, len;
 198
 199         if (copy_from_user(buf, user_buf, buf_size))
 200                 return -EFAULT;
 201
 202         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 203                 if ((offset & 0x3) || (len & 0x3))
 204                         return -EINVAL;
 205                 mvm->dbgfs_sram_offset = offset;
 206                 mvm->dbgfs_sram_len = len;
 207         } else {
 208                 mvm->dbgfs_sram_offset = 0;
 209                 mvm->dbgfs_sram_len = 0;
 210         }
 211
 212         return count;
 213 }
 214
 215 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 216                                        size_t count, loff_t *ppos)
 217 {
 218         struct iwl_mvm *mvm = file->private_data;
 219         struct ieee80211_sta *sta;
 220         char buf[400];
 221         int i, pos = 0, bufsz = sizeof(buf);
 222
 223         mutex_lock(&mvm->mutex);
 224
 225         for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
 226                 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
 227                 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
 228                                                 lockdep_is_held(&mvm->mutex));
 229                 if (!sta)
 230                         pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
 231                 else if (IS_ERR(sta))
 232                         pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
 233                                          PTR_ERR(sta));
 234                 else
 235                         pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
 236                                          sta->addr);
 237         }
 238
 239         mutex_unlock(&mvm->mutex);
 240
 241         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 242 }
 243
 244 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
 245                                                 char __user *user_buf,
 246                                                 size_t count, loff_t *ppos)
 247 {
 248         struct iwl_mvm *mvm = file->private_data;
 249         char buf[64];
 250         int bufsz = sizeof(buf);
 251         int pos = 0;
 252
 253         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
 254                          mvm->disable_power_off);
 255         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
 256                          mvm->disable_power_off_d3);
 257
 258         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 259 }
 260
 261 static ssize_t iwl_dbgfs_disable_power_off_write(struct file *file,
 262                                                  const char __user *user_buf,
 263                                                  size_t count, loff_t *ppos)
 264 {
 265         struct iwl_mvm *mvm = file->private_data;
 266         char buf[64] = {};
 267         size_t buf_size = min(count, sizeof(buf) - 1);
 268         int ret;
 269         int val;
 270
 271         if (!mvm->ucode_loaded)
 272                 return -EIO;
 273
 274         if (copy_from_user(buf, user_buf, buf_size))
 275                 return -EFAULT;
 276
 277         if (!strncmp("disable_power_off_d0=", buf, 21)) {
 278                 if (sscanf(buf + 21, "%d", &val) != 1)
 279                         return -EINVAL;
 280                 mvm->disable_power_off = val;
 281         } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
 282                 if (sscanf(buf + 21, "%d", &val) != 1)
 283                         return -EINVAL;
 284                 mvm->disable_power_off_d3 = val;
 285         } else {
 286                 return -EINVAL;
 287         }
 288
 289         mutex_lock(&mvm->mutex);
 290         ret = iwl_mvm_power_update_device_mode(mvm);
 291         mutex_unlock(&mvm->mutex);
 292
 293         return ret ?: count;
 294 }
 295
 296 #define BT_MBOX_MSG(_notif, _num, _field)                                    \
 297         ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
 298         >> BT_MBOX##_num##_##_field##_POS)
 299
 300
 301 #define BT_MBOX_PRINT(_num, _field, _end)                                   \
 302                         pos += scnprintf(buf + pos, bufsz - pos,            \
 303                                          "\t%s: %d%s",                      \
 304                                          #_field,                           \
 305                                          BT_MBOX_MSG(notif, _num, _field),  \
 306                                          true ? "\n" : ", ");
 307
 308 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
 309                                        size_t count, loff_t *ppos)
 310 {
 311         struct iwl_mvm *mvm = file->private_data;
 312         struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
 313         char *buf;
 314         int ret, pos = 0, bufsz = sizeof(char) * 1024;
 315
 316         buf = kmalloc(bufsz, GFP_KERNEL);
 317         if (!buf)
 318                 return -ENOMEM;
 319
 320         mutex_lock(&mvm->mutex);
 321
 322         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
 323
 324         BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
 325         BT_MBOX_PRINT(0, LE_PROF1, false);
 326         BT_MBOX_PRINT(0, LE_PROF2, false);
 327         BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
 328         BT_MBOX_PRINT(0, CHL_SEQ_N, false);
 329         BT_MBOX_PRINT(0, INBAND_S, false);
 330         BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
 331         BT_MBOX_PRINT(0, LE_SCAN, false);
 332         BT_MBOX_PRINT(0, LE_ADV, false);
 333         BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
 334         BT_MBOX_PRINT(0, OPEN_CON_1, true);
 335
 336         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
 337
 338         BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
 339         BT_MBOX_PRINT(1, IP_SR, false);
 340         BT_MBOX_PRINT(1, LE_MSTR, false);
 341         BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
 342         BT_MBOX_PRINT(1, MSG_TYPE, false);
 343         BT_MBOX_PRINT(1, SSN, true);
 344
 345         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
 346
 347         BT_MBOX_PRINT(2, SNIFF_ACT, false);
 348         BT_MBOX_PRINT(2, PAG, false);
 349         BT_MBOX_PRINT(2, INQUIRY, false);
 350         BT_MBOX_PRINT(2, CONN, false);
 351         BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
 352         BT_MBOX_PRINT(2, DISC, false);
 353         BT_MBOX_PRINT(2, SCO_TX_ACT, false);
 354         BT_MBOX_PRINT(2, SCO_RX_ACT, false);
 355         BT_MBOX_PRINT(2, ESCO_RE_TX, false);
 356         BT_MBOX_PRINT(2, SCO_DURATION, true);
 357
 358         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
 359
 360         BT_MBOX_PRINT(3, SCO_STATE, false);
 361         BT_MBOX_PRINT(3, SNIFF_STATE, false);
 362         BT_MBOX_PRINT(3, A2DP_STATE, false);
 363         BT_MBOX_PRINT(3, ACL_STATE, false);
 364         BT_MBOX_PRINT(3, MSTR_STATE, false);
 365         BT_MBOX_PRINT(3, OBX_STATE, false);
 366         BT_MBOX_PRINT(3, OPEN_CON_2, false);
 367         BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
 368         BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
 369         BT_MBOX_PRINT(3, INBAND_P, false);
 370         BT_MBOX_PRINT(3, MSG_TYPE_2, false);
 371         BT_MBOX_PRINT(3, SSN_2, false);
 372         BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
 373
 374         pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n",
 375                          notif->bt_status);
 376         pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n",
 377                          notif->bt_open_conn);
 378         pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n",
 379                          notif->bt_traffic_load);
 380         pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n",
 381                          notif->bt_agg_traffic_load);
 382         pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
 383                          notif->bt_ci_compliance);
 384         pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
 385                          le32_to_cpu(notif->primary_ch_lut));
 386         pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
 387                          le32_to_cpu(notif->secondary_ch_lut));
 388         pos += scnprintf(buf+pos, bufsz-pos, "bt_activity_grading = %d\n",
 389                          le32_to_cpu(notif->bt_activity_grading));
 390
 391         mutex_unlock(&mvm->mutex);
 392
 393         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 394         kfree(buf);
 395
 396         return ret;
 397 }
 398 #undef BT_MBOX_PRINT
 399
 400 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
 401                                      size_t count, loff_t *ppos)
 402 {
 403         struct iwl_mvm *mvm = file->private_data;
 404         struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
 405         char buf[256];
 406         int bufsz = sizeof(buf);
 407         int pos = 0;
 408
 409         mutex_lock(&mvm->mutex);
 410
 411         pos += scnprintf(buf+pos, bufsz-pos, "Channel inhibition CMD\n");
 412         pos += scnprintf(buf+pos, bufsz-pos,
 413                        "\tPrimary Channel Bitmap 0x%016llx Fat: %d\n",
 414                        le64_to_cpu(cmd->bt_primary_ci),
 415                        !!cmd->co_run_bw_primary);
 416         pos += scnprintf(buf+pos, bufsz-pos,
 417                        "\tSecondary Channel Bitmap 0x%016llx Fat: %d\n",
 418                        le64_to_cpu(cmd->bt_secondary_ci),
 419                        !!cmd->co_run_bw_secondary);
 420
 421         pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
 422         pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n",
 423                          iwl_bt_ack_kill_msk[mvm->bt_kill_msk]);
 424         pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n",
 425                          iwl_bt_cts_kill_msk[mvm->bt_kill_msk]);
 426
 427         mutex_unlock(&mvm->mutex);
 428
 429         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 430 }
 431
 432 #define PRINT_STATS_LE32(_str, _val)                                    \
 433                          pos += scnprintf(buf + pos, bufsz - pos,       \
 434                                           fmt_table, _str,              \
 435                                           le32_to_cpu(_val))
 436
 437 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
 438                                           char __user *user_buf, size_t count,
 439                                           loff_t *ppos)
 440 {
 441         struct iwl_mvm *mvm = file->private_data;
 442         static const char *fmt_table = "\t%-30s %10u\n";
 443         static const char *fmt_header = "%-32s\n";
 444         int pos = 0;
 445         char *buf;
 446         int ret;
 447         /* 43 is the size of each data line, 33 is the size of each header */
 448         size_t bufsz =
 449                 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
 450                 (4 * 33) + 1;
 451
 452         struct mvm_statistics_rx_phy *ofdm;
 453         struct mvm_statistics_rx_phy *cck;
 454         struct mvm_statistics_rx_non_phy *general;
 455         struct mvm_statistics_rx_ht_phy *ht;
 456
 457         buf = kzalloc(bufsz, GFP_KERNEL);
 458         if (!buf)
 459                 return -ENOMEM;
 460
 461         mutex_lock(&mvm->mutex);
 462
 463         ofdm = &mvm->rx_stats.ofdm;
 464         cck = &mvm->rx_stats.cck;
 465         general = &mvm->rx_stats.general;
 466         ht = &mvm->rx_stats.ofdm_ht;
 467
 468         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 469                          "Statistics_Rx - OFDM");
 470         PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt);
 471         PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt);
 472         PRINT_STATS_LE32("plcp_err", ofdm->plcp_err);
 473         PRINT_STATS_LE32("crc32_err", ofdm->crc32_err);
 474         PRINT_STATS_LE32("overrun_err", ofdm->overrun_err);
 475         PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err);
 476         PRINT_STATS_LE32("crc32_good", ofdm->crc32_good);
 477         PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt);
 478         PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt);
 479         PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout);
 480         PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout);
 481         PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts);
 482         PRINT_STATS_LE32("rxe_frame_lmt_overrun",
 483                          ofdm->rxe_frame_limit_overrun);
 484         PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt);
 485         PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt);
 486         PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt);
 487         PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill);
 488         PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err);
 489         PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum);
 490         PRINT_STATS_LE32("reserved", ofdm->reserved);
 491
 492         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 493                          "Statistics_Rx - CCK");
 494         PRINT_STATS_LE32("ina_cnt", cck->ina_cnt);
 495         PRINT_STATS_LE32("fina_cnt", cck->fina_cnt);
 496         PRINT_STATS_LE32("plcp_err", cck->plcp_err);
 497         PRINT_STATS_LE32("crc32_err", cck->crc32_err);
 498         PRINT_STATS_LE32("overrun_err", cck->overrun_err);
 499         PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err);
 500         PRINT_STATS_LE32("crc32_good", cck->crc32_good);
 501         PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt);
 502         PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt);
 503         PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout);
 504         PRINT_STATS_LE32("fina_timeout", cck->fina_timeout);
 505         PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts);
 506         PRINT_STATS_LE32("rxe_frame_lmt_overrun",
 507                          cck->rxe_frame_limit_overrun);
 508         PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt);
 509         PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt);
 510         PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt);
 511         PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill);
 512         PRINT_STATS_LE32("mh_format_err", cck->mh_format_err);
 513         PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum);
 514         PRINT_STATS_LE32("reserved", cck->reserved);
 515
 516         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 517                          "Statistics_Rx - GENERAL");
 518         PRINT_STATS_LE32("bogus_cts", general->bogus_cts);
 519         PRINT_STATS_LE32("bogus_ack", general->bogus_ack);
 520         PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames);
 521         PRINT_STATS_LE32("filtered_frames", general->filtered_frames);
 522         PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons);
 523         PRINT_STATS_LE32("channel_beacons", general->channel_beacons);
 524         PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon);
 525         PRINT_STATS_LE32("adc_rx_saturation_time",
 526                          general->adc_rx_saturation_time);
 527         PRINT_STATS_LE32("ina_detection_search_time",
 528                          general->ina_detection_search_time);
 529         PRINT_STATS_LE32("beacon_silence_rssi_a",
 530                          general->beacon_silence_rssi_a);
 531         PRINT_STATS_LE32("beacon_silence_rssi_b",
 532                          general->beacon_silence_rssi_b);
 533         PRINT_STATS_LE32("beacon_silence_rssi_c",
 534                          general->beacon_silence_rssi_c);
 535         PRINT_STATS_LE32("interference_data_flag",
 536                          general->interference_data_flag);
 537         PRINT_STATS_LE32("channel_load", general->channel_load);
 538         PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms);
 539         PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a);
 540         PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b);
 541         PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c);
 542         PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a);
 543         PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b);
 544         PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c);
 545         PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills);
 546         PRINT_STATS_LE32("mac_id", general->mac_id);
 547         PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu);
 548
 549         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 550                          "Statistics_Rx - HT");
 551         PRINT_STATS_LE32("plcp_err", ht->plcp_err);
 552         PRINT_STATS_LE32("overrun_err", ht->overrun_err);
 553         PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err);
 554         PRINT_STATS_LE32("crc32_good", ht->crc32_good);
 555         PRINT_STATS_LE32("crc32_err", ht->crc32_err);
 556         PRINT_STATS_LE32("mh_format_err", ht->mh_format_err);
 557         PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good);
 558         PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt);
 559         PRINT_STATS_LE32("agg_cnt", ht->agg_cnt);
 560         PRINT_STATS_LE32("unsupport_mcs", ht->unsupport_mcs);
 561
 562         mutex_unlock(&mvm->mutex);
 563
 564         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 565         kfree(buf);
 566
 567         return ret;
 568 }
 569 #undef PRINT_STAT_LE32
 570
 571 static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
 572                                           const char __user *user_buf,
 573                                           size_t count, loff_t *ppos)
 574 {
 575         struct iwl_mvm *mvm = file->private_data;
 576         int ret;
 577
 578         mutex_lock(&mvm->mutex);
 579
 580         /* allow one more restart that we're provoking here */
 581         if (mvm->restart_fw >= 0)
 582                 mvm->restart_fw++;
 583
 584         /* take the return value to make compiler happy - it will fail anyway */
 585         ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, CMD_SYNC, 0, NULL);
 586
 587         mutex_unlock(&mvm->mutex);
 588
 589         return count;
 590 }
 591
 592 static ssize_t iwl_dbgfs_fw_nmi_write(struct file *file,
 593                                       const char __user *user_buf,
 594                                       size_t count, loff_t *ppos)
 595 {
 596         struct iwl_mvm *mvm = file->private_data;
 597
 598         iwl_write_prph(mvm->trans, DEVICE_SET_NMI_REG, 1);
 599
 600         return count;
 601 }
 602
 603 static ssize_t
 604 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
 605                                 char __user *user_buf,
 606                                 size_t count, loff_t *ppos)
 607 {
 608         struct iwl_mvm *mvm = file->private_data;
 609         int pos = 0;
 610         char buf[32];
 611         const size_t bufsz = sizeof(buf);
 612
 613         /* print which antennas were set for the scan command by the user */
 614         pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
 615         if (mvm->scan_rx_ant & ANT_A)
 616                 pos += scnprintf(buf + pos, bufsz - pos, "A");
 617         if (mvm->scan_rx_ant & ANT_B)
 618                 pos += scnprintf(buf + pos, bufsz - pos, "B");
 619         if (mvm->scan_rx_ant & ANT_C)
 620                 pos += scnprintf(buf + pos, bufsz - pos, "C");
 621         pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
 622
 623         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 624 }
 625
 626 static ssize_t
 627 iwl_dbgfs_scan_ant_rxchain_write(struct file *file,
 628                                  const char __user *user_buf,
 629                                  size_t count, loff_t *ppos)
 630 {
 631         struct iwl_mvm *mvm = file->private_data;
 632         char buf[8] = {};
 633         size_t buf_size = min(count, sizeof(buf) - 1);
 634         u8 scan_rx_ant;
 635
 636         if (copy_from_user(buf, user_buf, buf_size))
 637                 return -EFAULT;
 638         if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
 639                 return -EINVAL;
 640         if (scan_rx_ant > ANT_ABC)
 641                 return -EINVAL;
 642         if (scan_rx_ant & ~iwl_fw_valid_rx_ant(mvm->fw))
 643                 return -EINVAL;
 644
 645         mvm->scan_rx_ant = scan_rx_ant;
 646
 647         return count;
 648 }
 649
 650 #ifdef CONFIG_PM_SLEEP
 651 static ssize_t iwl_dbgfs_d3_sram_write(struct file *file,
 652                                        const char __user *user_buf,
 653                                        size_t count, loff_t *ppos)
 654 {
 655         struct iwl_mvm *mvm = file->private_data;
 656         char buf[8] = {};
 657         size_t buf_size = min(count, sizeof(buf) - 1);
 658         int store;
 659
 660         if (copy_from_user(buf, user_buf, buf_size))
 661                 return -EFAULT;
 662
 663         if (sscanf(buf, "%d", &store) != 1)
 664                 return -EINVAL;
 665
 666         mvm->store_d3_resume_sram = store;
 667
 668         return count;
 669 }
 670
 671 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
 672                                       size_t count, loff_t *ppos)
 673 {
 674         struct iwl_mvm *mvm = file->private_data;
 675         const struct fw_img *img;
 676         int ofs, len, pos = 0;
 677         size_t bufsz, ret;
 678         char *buf;
 679         u8 *ptr = mvm->d3_resume_sram;
 680
 681         img = &mvm->fw->img[IWL_UCODE_WOWLAN];
 682         len = img->sec[IWL_UCODE_SECTION_DATA].len;
 683
 684         bufsz = len * 4 + 256;
 685         buf = kzalloc(bufsz, GFP_KERNEL);
 686         if (!buf)
 687                 return -ENOMEM;
 688
 689         pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
 690                          mvm->store_d3_resume_sram ? "en" : "dis");
 691
 692         if (ptr) {
 693                 for (ofs = 0; ofs < len; ofs += 16) {
 694                         pos += scnprintf(buf + pos, bufsz - pos,
 695                                          "0x%.4x ", ofs);
 696                         hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
 697                                            bufsz - pos, false);
 698                         pos += strlen(buf + pos);
 699                         if (bufsz - pos > 0)
 700                                 buf[pos++] = '\n';
 701                 }
 702         } else {
 703                 pos += scnprintf(buf + pos, bufsz - pos,
 704                                  "(no data captured)\n");
 705         }
 706
 707         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 708
 709         kfree(buf);
 710
 711         return ret;
 712 }
 713 #endif
 714
 715 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) do {                   \
 716                 if (!debugfs_create_file(#name, mode, parent, mvm,      \
 717                                          &iwl_dbgfs_##name##_ops))      \
 718                         goto err;                                       \
 719         } while (0)
 720
 721 /* Device wide debugfs entries */
 722 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush);
 723 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain);
 724 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram);
 725 MVM_DEBUGFS_READ_FILE_OPS(stations);
 726 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
 727 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
 728 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off);
 729 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
 730 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart);
 731 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi);
 732 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain);
 733
 734 #ifdef CONFIG_PM_SLEEP
 735 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram);
 736 #endif
 737
 738 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 739 {
 740         char buf[100];
 741
 742         mvm->debugfs_dir = dbgfs_dir;
 743
 744         MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
 745         MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
 746         MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
 747         MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
 748         MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
 749         MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
 750         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD)
 751                 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
 752                                      S_IRUSR | S_IWUSR);
 753         MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
 754         MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
 755         MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
 756         MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
 757                              S_IWUSR | S_IRUSR);
 758 #ifdef CONFIG_PM_SLEEP
 759         MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
 760         MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
 761         if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
 762                                  mvm->debugfs_dir, &mvm->d3_wake_sysassert))
 763                 goto err;
 764 #endif
 765
 766         /*
 767          * Create a symlink with mac80211. It will be removed when mac80211
 768          * exists (before the opmode exists which removes the target.)
 769          */
 770         snprintf(buf, 100, "../../%s/%s",
 771                  dbgfs_dir->d_parent->d_parent->d_name.name,
 772                  dbgfs_dir->d_parent->d_name.name);
 773         if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
 774                 goto err;
 775
 776         return 0;
 777 err:
 778         IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
 779         return -ENOMEM;
 780 }