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 - 2014 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  *
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  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 - 2014 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 <linux/vmalloc.h>
  64
  65 #include "mvm.h"
  66 #include "sta.h"
  67 #include "iwl-io.h"
  68 #include "iwl-prph.h"
  69 #include "debugfs.h"
  70 #include "iwl-fw-error-dump.h"
  71
  72 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
  73                                         size_t count, loff_t *ppos)
  74 {
  75         int ret;
  76         u32 scd_q_msk;
  77
  78         if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
  79                 return -EIO;
  80
  81         if (sscanf(buf, "%x", &scd_q_msk) != 1)
  82                 return -EINVAL;
  83
  84         IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
  85
  86         mutex_lock(&mvm->mutex);
  87         ret =  iwl_mvm_flush_tx_path(mvm, scd_q_msk, true) ? : count;
  88         mutex_unlock(&mvm->mutex);
  89
  90         return ret;
  91 }
  92
  93 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
  94                                          size_t count, loff_t *ppos)
  95 {
  96         struct iwl_mvm_sta *mvmsta;
  97         int sta_id, drain, ret;
  98
  99         if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
 100                 return -EIO;
 101
 102         if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
 103                 return -EINVAL;
 104         if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
 105                 return -EINVAL;
 106         if (drain < 0 || drain > 1)
 107                 return -EINVAL;
 108
 109         mutex_lock(&mvm->mutex);
 110
 111         mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 112
 113         if (!mvmsta)
 114                 ret = -ENOENT;
 115         else
 116                 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
 117
 118         mutex_unlock(&mvm->mutex);
 119
 120         return ret;
 121 }
 122
 123 static int iwl_dbgfs_fw_error_dump_open(struct inode *inode, struct file *file)
 124 {
 125         struct iwl_mvm *mvm = inode->i_private;
 126         int ret;
 127
 128         if (!mvm)
 129                 return -EINVAL;
 130
 131         mutex_lock(&mvm->mutex);
 132         if (!mvm->fw_error_dump) {
 133                 ret = -ENODATA;
 134                 goto out;
 135         }
 136
 137         file->private_data = mvm->fw_error_dump;
 138         mvm->fw_error_dump = NULL;
 139         ret = 0;
 140
 141 out:
 142         mutex_unlock(&mvm->mutex);
 143         return ret;
 144 }
 145
 146 static ssize_t iwl_dbgfs_fw_error_dump_read(struct file *file,
 147                                             char __user *user_buf,
 148                                             size_t count, loff_t *ppos)
 149 {
 150         struct iwl_fw_error_dump_file *dump_file = file->private_data;
 151
 152         return simple_read_from_buffer(user_buf, count, ppos,
 153                                        dump_file,
 154                                        le32_to_cpu(dump_file->file_len));
 155 }
 156
 157 static int iwl_dbgfs_fw_error_dump_release(struct inode *inode,
 158                                            struct file *file)
 159 {
 160         vfree(file->private_data);
 161
 162         return 0;
 163 }
 164
 165 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
 166                                    size_t count, loff_t *ppos)
 167 {
 168         struct iwl_mvm *mvm = file->private_data;
 169         const struct fw_img *img;
 170         unsigned int ofs, len;
 171         size_t ret;
 172         u8 *ptr;
 173
 174         if (!mvm->ucode_loaded)
 175                 return -EINVAL;
 176
 177         /* default is to dump the entire data segment */
 178         img = &mvm->fw->img[mvm->cur_ucode];
 179         ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
 180         len = img->sec[IWL_UCODE_SECTION_DATA].len;
 181
 182         if (mvm->dbgfs_sram_len) {
 183                 ofs = mvm->dbgfs_sram_offset;
 184                 len = mvm->dbgfs_sram_len;
 185         }
 186
 187         ptr = kzalloc(len, GFP_KERNEL);
 188         if (!ptr)
 189                 return -ENOMEM;
 190
 191         iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
 192
 193         ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
 194
 195         kfree(ptr);
 196
 197         return ret;
 198 }
 199
 200 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
 201                                     size_t count, loff_t *ppos)
 202 {
 203         const struct fw_img *img;
 204         u32 offset, len;
 205         u32 img_offset, img_len;
 206
 207         if (!mvm->ucode_loaded)
 208                 return -EINVAL;
 209
 210         img = &mvm->fw->img[mvm->cur_ucode];
 211         img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
 212         img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
 213
 214         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 215                 if ((offset & 0x3) || (len & 0x3))
 216                         return -EINVAL;
 217
 218                 if (offset + len > img_offset + img_len)
 219                         return -EINVAL;
 220
 221                 mvm->dbgfs_sram_offset = offset;
 222                 mvm->dbgfs_sram_len = len;
 223         } else {
 224                 mvm->dbgfs_sram_offset = 0;
 225                 mvm->dbgfs_sram_len = 0;
 226         }
 227
 228         return count;
 229 }
 230
 231 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 232                                        size_t count, loff_t *ppos)
 233 {
 234         struct iwl_mvm *mvm = file->private_data;
 235         struct ieee80211_sta *sta;
 236         char buf[400];
 237         int i, pos = 0, bufsz = sizeof(buf);
 238
 239         mutex_lock(&mvm->mutex);
 240
 241         for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
 242                 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
 243                 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
 244                                                 lockdep_is_held(&mvm->mutex));
 245                 if (!sta)
 246                         pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
 247                 else if (IS_ERR(sta))
 248                         pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
 249                                          PTR_ERR(sta));
 250                 else
 251                         pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
 252                                          sta->addr);
 253         }
 254
 255         mutex_unlock(&mvm->mutex);
 256
 257         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 258 }
 259
 260 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
 261                                                 char __user *user_buf,
 262                                                 size_t count, loff_t *ppos)
 263 {
 264         struct iwl_mvm *mvm = file->private_data;
 265         char buf[64];
 266         int bufsz = sizeof(buf);
 267         int pos = 0;
 268
 269         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
 270                          mvm->disable_power_off);
 271         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
 272                          mvm->disable_power_off_d3);
 273
 274         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 275 }
 276
 277 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
 278                                                  size_t count, loff_t *ppos)
 279 {
 280         int ret, val;
 281
 282         if (!mvm->ucode_loaded)
 283                 return -EIO;
 284
 285         if (!strncmp("disable_power_off_d0=", buf, 21)) {
 286                 if (sscanf(buf + 21, "%d", &val) != 1)
 287                         return -EINVAL;
 288                 mvm->disable_power_off = val;
 289         } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
 290                 if (sscanf(buf + 21, "%d", &val) != 1)
 291                         return -EINVAL;
 292                 mvm->disable_power_off_d3 = val;
 293         } else {
 294                 return -EINVAL;
 295         }
 296
 297         mutex_lock(&mvm->mutex);
 298         ret = iwl_mvm_power_update_device(mvm);
 299         mutex_unlock(&mvm->mutex);
 300
 301         return ret ?: count;
 302 }
 303
 304 #define BT_MBOX_MSG(_notif, _num, _field)                                    \
 305         ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
 306         >> BT_MBOX##_num##_##_field##_POS)
 307
 308
 309 #define BT_MBOX_PRINT(_num, _field, _end)                                   \
 310                         pos += scnprintf(buf + pos, bufsz - pos,            \
 311                                          "\t%s: %d%s",                      \
 312                                          #_field,                           \
 313                                          BT_MBOX_MSG(notif, _num, _field),  \
 314                                          true ? "\n" : ", ");
 315
 316 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
 317                                        size_t count, loff_t *ppos)
 318 {
 319         struct iwl_mvm *mvm = file->private_data;
 320         struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
 321         char *buf;
 322         int ret, pos = 0, bufsz = sizeof(char) * 1024;
 323
 324         buf = kmalloc(bufsz, GFP_KERNEL);
 325         if (!buf)
 326                 return -ENOMEM;
 327
 328         mutex_lock(&mvm->mutex);
 329
 330         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
 331
 332         BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
 333         BT_MBOX_PRINT(0, LE_PROF1, false);
 334         BT_MBOX_PRINT(0, LE_PROF2, false);
 335         BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
 336         BT_MBOX_PRINT(0, CHL_SEQ_N, false);
 337         BT_MBOX_PRINT(0, INBAND_S, false);
 338         BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
 339         BT_MBOX_PRINT(0, LE_SCAN, false);
 340         BT_MBOX_PRINT(0, LE_ADV, false);
 341         BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
 342         BT_MBOX_PRINT(0, OPEN_CON_1, true);
 343
 344         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
 345
 346         BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
 347         BT_MBOX_PRINT(1, IP_SR, false);
 348         BT_MBOX_PRINT(1, LE_MSTR, false);
 349         BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
 350         BT_MBOX_PRINT(1, MSG_TYPE, false);
 351         BT_MBOX_PRINT(1, SSN, true);
 352
 353         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
 354
 355         BT_MBOX_PRINT(2, SNIFF_ACT, false);
 356         BT_MBOX_PRINT(2, PAG, false);
 357         BT_MBOX_PRINT(2, INQUIRY, false);
 358         BT_MBOX_PRINT(2, CONN, false);
 359         BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
 360         BT_MBOX_PRINT(2, DISC, false);
 361         BT_MBOX_PRINT(2, SCO_TX_ACT, false);
 362         BT_MBOX_PRINT(2, SCO_RX_ACT, false);
 363         BT_MBOX_PRINT(2, ESCO_RE_TX, false);
 364         BT_MBOX_PRINT(2, SCO_DURATION, true);
 365
 366         pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
 367
 368         BT_MBOX_PRINT(3, SCO_STATE, false);
 369         BT_MBOX_PRINT(3, SNIFF_STATE, false);
 370         BT_MBOX_PRINT(3, A2DP_STATE, false);
 371         BT_MBOX_PRINT(3, ACL_STATE, false);
 372         BT_MBOX_PRINT(3, MSTR_STATE, false);
 373         BT_MBOX_PRINT(3, OBX_STATE, false);
 374         BT_MBOX_PRINT(3, OPEN_CON_2, false);
 375         BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
 376         BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
 377         BT_MBOX_PRINT(3, INBAND_P, false);
 378         BT_MBOX_PRINT(3, MSG_TYPE_2, false);
 379         BT_MBOX_PRINT(3, SSN_2, false);
 380         BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
 381
 382         pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n",
 383                          notif->bt_status);
 384         pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n",
 385                          notif->bt_open_conn);
 386         pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n",
 387                          notif->bt_traffic_load);
 388         pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n",
 389                          notif->bt_agg_traffic_load);
 390         pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
 391                          notif->bt_ci_compliance);
 392         pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
 393                          le32_to_cpu(notif->primary_ch_lut));
 394         pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
 395                          le32_to_cpu(notif->secondary_ch_lut));
 396         pos += scnprintf(buf+pos, bufsz-pos, "bt_activity_grading = %d\n",
 397                          le32_to_cpu(notif->bt_activity_grading));
 398         pos += scnprintf(buf+pos, bufsz-pos,
 399                          "antenna isolation = %d CORUN LUT index = %d\n",
 400                          mvm->last_ant_isol, mvm->last_corun_lut);
 401
 402         mutex_unlock(&mvm->mutex);
 403
 404         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 405         kfree(buf);
 406
 407         return ret;
 408 }
 409 #undef BT_MBOX_PRINT
 410
 411 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
 412                                      size_t count, loff_t *ppos)
 413 {
 414         struct iwl_mvm *mvm = file->private_data;
 415         struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
 416         char buf[256];
 417         int bufsz = sizeof(buf);
 418         int pos = 0;
 419
 420         mutex_lock(&mvm->mutex);
 421
 422         pos += scnprintf(buf+pos, bufsz-pos, "Channel inhibition CMD\n");
 423         pos += scnprintf(buf+pos, bufsz-pos,
 424                        "\tPrimary Channel Bitmap 0x%016llx Fat: %d\n",
 425                        le64_to_cpu(cmd->bt_primary_ci),
 426                        !!cmd->co_run_bw_primary);
 427         pos += scnprintf(buf+pos, bufsz-pos,
 428                        "\tSecondary Channel Bitmap 0x%016llx Fat: %d\n",
 429                        le64_to_cpu(cmd->bt_secondary_ci),
 430                        !!cmd->co_run_bw_secondary);
 431
 432         pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
 433         pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n",
 434                          iwl_bt_ack_kill_msk[mvm->bt_kill_msk]);
 435         pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n",
 436                          iwl_bt_cts_kill_msk[mvm->bt_kill_msk]);
 437
 438         mutex_unlock(&mvm->mutex);
 439
 440         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 441 }
 442
 443 static ssize_t
 444 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
 445                            size_t count, loff_t *ppos)
 446 {
 447         u32 bt_tx_prio;
 448
 449         if (sscanf(buf, "%u", &bt_tx_prio) != 1)
 450                 return -EINVAL;
 451         if (bt_tx_prio > 4)
 452                 return -EINVAL;
 453
 454         mvm->bt_tx_prio = bt_tx_prio;
 455
 456         return count;
 457 }
 458
 459 #define PRINT_STATS_LE32(_str, _val)                                    \
 460                          pos += scnprintf(buf + pos, bufsz - pos,       \
 461                                           fmt_table, _str,              \
 462                                           le32_to_cpu(_val))
 463
 464 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
 465                                           char __user *user_buf, size_t count,
 466                                           loff_t *ppos)
 467 {
 468         struct iwl_mvm *mvm = file->private_data;
 469         static const char *fmt_table = "\t%-30s %10u\n";
 470         static const char *fmt_header = "%-32s\n";
 471         int pos = 0;
 472         char *buf;
 473         int ret;
 474         /* 43 is the size of each data line, 33 is the size of each header */
 475         size_t bufsz =
 476                 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
 477                 (4 * 33) + 1;
 478
 479         struct mvm_statistics_rx_phy *ofdm;
 480         struct mvm_statistics_rx_phy *cck;
 481         struct mvm_statistics_rx_non_phy *general;
 482         struct mvm_statistics_rx_ht_phy *ht;
 483
 484         buf = kzalloc(bufsz, GFP_KERNEL);
 485         if (!buf)
 486                 return -ENOMEM;
 487
 488         mutex_lock(&mvm->mutex);
 489
 490         ofdm = &mvm->rx_stats.ofdm;
 491         cck = &mvm->rx_stats.cck;
 492         general = &mvm->rx_stats.general;
 493         ht = &mvm->rx_stats.ofdm_ht;
 494
 495         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 496                          "Statistics_Rx - OFDM");
 497         PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt);
 498         PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt);
 499         PRINT_STATS_LE32("plcp_err", ofdm->plcp_err);
 500         PRINT_STATS_LE32("crc32_err", ofdm->crc32_err);
 501         PRINT_STATS_LE32("overrun_err", ofdm->overrun_err);
 502         PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err);
 503         PRINT_STATS_LE32("crc32_good", ofdm->crc32_good);
 504         PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt);
 505         PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt);
 506         PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout);
 507         PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout);
 508         PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts);
 509         PRINT_STATS_LE32("rxe_frame_lmt_overrun",
 510                          ofdm->rxe_frame_limit_overrun);
 511         PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt);
 512         PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt);
 513         PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt);
 514         PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill);
 515         PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err);
 516         PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum);
 517         PRINT_STATS_LE32("reserved", ofdm->reserved);
 518
 519         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 520                          "Statistics_Rx - CCK");
 521         PRINT_STATS_LE32("ina_cnt", cck->ina_cnt);
 522         PRINT_STATS_LE32("fina_cnt", cck->fina_cnt);
 523         PRINT_STATS_LE32("plcp_err", cck->plcp_err);
 524         PRINT_STATS_LE32("crc32_err", cck->crc32_err);
 525         PRINT_STATS_LE32("overrun_err", cck->overrun_err);
 526         PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err);
 527         PRINT_STATS_LE32("crc32_good", cck->crc32_good);
 528         PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt);
 529         PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt);
 530         PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout);
 531         PRINT_STATS_LE32("fina_timeout", cck->fina_timeout);
 532         PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts);
 533         PRINT_STATS_LE32("rxe_frame_lmt_overrun",
 534                          cck->rxe_frame_limit_overrun);
 535         PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt);
 536         PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt);
 537         PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt);
 538         PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill);
 539         PRINT_STATS_LE32("mh_format_err", cck->mh_format_err);
 540         PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum);
 541         PRINT_STATS_LE32("reserved", cck->reserved);
 542
 543         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 544                          "Statistics_Rx - GENERAL");
 545         PRINT_STATS_LE32("bogus_cts", general->bogus_cts);
 546         PRINT_STATS_LE32("bogus_ack", general->bogus_ack);
 547         PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames);
 548         PRINT_STATS_LE32("filtered_frames", general->filtered_frames);
 549         PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons);
 550         PRINT_STATS_LE32("channel_beacons", general->channel_beacons);
 551         PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon);
 552         PRINT_STATS_LE32("adc_rx_saturation_time",
 553                          general->adc_rx_saturation_time);
 554         PRINT_STATS_LE32("ina_detection_search_time",
 555                          general->ina_detection_search_time);
 556         PRINT_STATS_LE32("beacon_silence_rssi_a",
 557                          general->beacon_silence_rssi_a);
 558         PRINT_STATS_LE32("beacon_silence_rssi_b",
 559                          general->beacon_silence_rssi_b);
 560         PRINT_STATS_LE32("beacon_silence_rssi_c",
 561                          general->beacon_silence_rssi_c);
 562         PRINT_STATS_LE32("interference_data_flag",
 563                          general->interference_data_flag);
 564         PRINT_STATS_LE32("channel_load", general->channel_load);
 565         PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms);
 566         PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a);
 567         PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b);
 568         PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c);
 569         PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a);
 570         PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b);
 571         PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c);
 572         PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills);
 573         PRINT_STATS_LE32("mac_id", general->mac_id);
 574         PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu);
 575
 576         pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 577                          "Statistics_Rx - HT");
 578         PRINT_STATS_LE32("plcp_err", ht->plcp_err);
 579         PRINT_STATS_LE32("overrun_err", ht->overrun_err);
 580         PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err);
 581         PRINT_STATS_LE32("crc32_good", ht->crc32_good);
 582         PRINT_STATS_LE32("crc32_err", ht->crc32_err);
 583         PRINT_STATS_LE32("mh_format_err", ht->mh_format_err);
 584         PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good);
 585         PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt);
 586         PRINT_STATS_LE32("agg_cnt", ht->agg_cnt);
 587         PRINT_STATS_LE32("unsupport_mcs", ht->unsupport_mcs);
 588
 589         mutex_unlock(&mvm->mutex);
 590
 591         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 592         kfree(buf);
 593
 594         return ret;
 595 }
 596 #undef PRINT_STAT_LE32
 597
 598 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
 599                                           char __user *user_buf, size_t count,
 600                                           loff_t *ppos,
 601                                           struct iwl_mvm_frame_stats *stats)
 602 {
 603         char *buff, *pos, *endpos;
 604         int idx, i;
 605         int ret;
 606         static const size_t bufsz = 1024;
 607
 608         buff = kmalloc(bufsz, GFP_KERNEL);
 609         if (!buff)
 610                 return -ENOMEM;
 611
 612         spin_lock_bh(&mvm->drv_stats_lock);
 613
 614         pos = buff;
 615         endpos = pos + bufsz;
 616
 617         pos += scnprintf(pos, endpos - pos,
 618                          "Legacy/HT/VHT\t:\t%d/%d/%d\n",
 619                          stats->legacy_frames,
 620                          stats->ht_frames,
 621                          stats->vht_frames);
 622         pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
 623                          stats->bw_20_frames,
 624                          stats->bw_40_frames,
 625                          stats->bw_80_frames);
 626         pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
 627                          stats->ngi_frames,
 628                          stats->sgi_frames);
 629         pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
 630                          stats->siso_frames,
 631                          stats->mimo2_frames);
 632         pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
 633                          stats->fail_frames,
 634                          stats->success_frames);
 635         pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
 636                          stats->agg_frames);
 637         pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
 638                          stats->ampdu_count);
 639         pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
 640                          stats->ampdu_count > 0 ?
 641                          (stats->agg_frames / stats->ampdu_count) : 0);
 642
 643         pos += scnprintf(pos, endpos - pos, "Last Rates\n");
 644
 645         idx = stats->last_frame_idx - 1;
 646         for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
 647                 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
 648                 if (stats->last_rates[idx] == 0)
 649                         continue;
 650                 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
 651                                  (int)(ARRAY_SIZE(stats->last_rates) - i));
 652                 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]);
 653         }
 654         spin_unlock_bh(&mvm->drv_stats_lock);
 655
 656         ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
 657         kfree(buff);
 658
 659         return ret;
 660 }
 661
 662 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
 663                                            char __user *user_buf, size_t count,
 664                                            loff_t *ppos)
 665 {
 666         struct iwl_mvm *mvm = file->private_data;
 667
 668         return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
 669                                           &mvm->drv_rx_stats);
 670 }
 671
 672 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
 673                                           size_t count, loff_t *ppos)
 674 {
 675         int ret;
 676
 677         mutex_lock(&mvm->mutex);
 678
 679         /* allow one more restart that we're provoking here */
 680         if (mvm->restart_fw >= 0)
 681                 mvm->restart_fw++;
 682
 683         /* take the return value to make compiler happy - it will fail anyway */
 684         ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL);
 685
 686         mutex_unlock(&mvm->mutex);
 687
 688         return count;
 689 }
 690
 691 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
 692                                       size_t count, loff_t *ppos)
 693 {
 694         iwl_write_prph(mvm->trans, DEVICE_SET_NMI_REG, 1);
 695
 696         return count;
 697 }
 698
 699 static ssize_t
 700 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
 701                                 char __user *user_buf,
 702                                 size_t count, loff_t *ppos)
 703 {
 704         struct iwl_mvm *mvm = file->private_data;
 705         int pos = 0;
 706         char buf[32];
 707         const size_t bufsz = sizeof(buf);
 708
 709         /* print which antennas were set for the scan command by the user */
 710         pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
 711         if (mvm->scan_rx_ant & ANT_A)
 712                 pos += scnprintf(buf + pos, bufsz - pos, "A");
 713         if (mvm->scan_rx_ant & ANT_B)
 714                 pos += scnprintf(buf + pos, bufsz - pos, "B");
 715         if (mvm->scan_rx_ant & ANT_C)
 716                 pos += scnprintf(buf + pos, bufsz - pos, "C");
 717         pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
 718
 719         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 720 }
 721
 722 static ssize_t
 723 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
 724                                  size_t count, loff_t *ppos)
 725 {
 726         u8 scan_rx_ant;
 727
 728         if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
 729                 return -EINVAL;
 730         if (scan_rx_ant > ANT_ABC)
 731                 return -EINVAL;
 732         if (scan_rx_ant & ~mvm->fw->valid_rx_ant)
 733                 return -EINVAL;
 734
 735         mvm->scan_rx_ant = scan_rx_ant;
 736
 737         return count;
 738 }
 739
 740 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
 741 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 742 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
 743                                             char __user *user_buf,
 744                                             size_t count, loff_t *ppos)
 745 {
 746         struct iwl_mvm *mvm = file->private_data;
 747         struct iwl_bcast_filter_cmd cmd;
 748         const struct iwl_fw_bcast_filter *filter;
 749         char *buf;
 750         int bufsz = 1024;
 751         int i, j, pos = 0;
 752         ssize_t ret;
 753
 754         buf = kzalloc(bufsz, GFP_KERNEL);
 755         if (!buf)
 756                 return -ENOMEM;
 757
 758         mutex_lock(&mvm->mutex);
 759         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
 760                 ADD_TEXT("None\n");
 761                 mutex_unlock(&mvm->mutex);
 762                 goto out;
 763         }
 764         mutex_unlock(&mvm->mutex);
 765
 766         for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
 767                 filter = &cmd.filters[i];
 768
 769                 ADD_TEXT("Filter [%d]:\n", i);
 770                 ADD_TEXT("\tDiscard=%d\n", filter->discard);
 771                 ADD_TEXT("\tFrame Type: %s\n",
 772                          filter->frame_type ? "IPv4" : "Generic");
 773
 774                 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
 775                         const struct iwl_fw_bcast_filter_attr *attr;
 776
 777                         attr = &filter->attrs[j];
 778                         if (!attr->mask)
 779                                 break;
 780
 781                         ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
 782                                  j, attr->offset,
 783                                  attr->offset_type ? "IP End" :
 784                                                      "Payload Start",
 785                                  be32_to_cpu(attr->mask),
 786                                  be32_to_cpu(attr->val),
 787                                  le16_to_cpu(attr->reserved1));
 788                 }
 789         }
 790 out:
 791         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 792         kfree(buf);
 793         return ret;
 794 }
 795
 796 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
 797                                              size_t count, loff_t *ppos)
 798 {
 799         int pos, next_pos;
 800         struct iwl_fw_bcast_filter filter = {};
 801         struct iwl_bcast_filter_cmd cmd;
 802         u32 filter_id, attr_id, mask, value;
 803         int err = 0;
 804
 805         if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
 806                    &filter.frame_type, &pos) != 3)
 807                 return -EINVAL;
 808
 809         if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
 810             filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
 811                 return -EINVAL;
 812
 813         for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
 814              attr_id++) {
 815                 struct iwl_fw_bcast_filter_attr *attr =
 816                                 &filter.attrs[attr_id];
 817
 818                 if (pos >= count)
 819                         break;
 820
 821                 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
 822                            &attr->offset, &attr->offset_type,
 823                            &mask, &value, &next_pos) != 4)
 824                         return -EINVAL;
 825
 826                 attr->mask = cpu_to_be32(mask);
 827                 attr->val = cpu_to_be32(value);
 828                 if (mask)
 829                         filter.num_attrs++;
 830
 831                 pos += next_pos;
 832         }
 833
 834         mutex_lock(&mvm->mutex);
 835         memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
 836                &filter, sizeof(filter));
 837
 838         /* send updated bcast filtering configuration */
 839         if (mvm->dbgfs_bcast_filtering.override &&
 840             iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
 841                 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
 842                                            sizeof(cmd), &cmd);
 843         mutex_unlock(&mvm->mutex);
 844
 845         return err ?: count;
 846 }
 847
 848 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
 849                                                  char __user *user_buf,
 850                                                  size_t count, loff_t *ppos)
 851 {
 852         struct iwl_mvm *mvm = file->private_data;
 853         struct iwl_bcast_filter_cmd cmd;
 854         char *buf;
 855         int bufsz = 1024;
 856         int i, pos = 0;
 857         ssize_t ret;
 858
 859         buf = kzalloc(bufsz, GFP_KERNEL);
 860         if (!buf)
 861                 return -ENOMEM;
 862
 863         mutex_lock(&mvm->mutex);
 864         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
 865                 ADD_TEXT("None\n");
 866                 mutex_unlock(&mvm->mutex);
 867                 goto out;
 868         }
 869         mutex_unlock(&mvm->mutex);
 870
 871         for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
 872                 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
 873
 874                 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
 875                          i, mac->default_discard, mac->attached_filters);
 876         }
 877 out:
 878         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 879         kfree(buf);
 880         return ret;
 881 }
 882
 883 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
 884                                                   char *buf, size_t count,
 885                                                   loff_t *ppos)
 886 {
 887         struct iwl_bcast_filter_cmd cmd;
 888         struct iwl_fw_bcast_mac mac = {};
 889         u32 mac_id, attached_filters;
 890         int err = 0;
 891
 892         if (!mvm->bcast_filters)
 893                 return -ENOENT;
 894
 895         if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
 896                    &attached_filters) != 3)
 897                 return -EINVAL;
 898
 899         if (mac_id >= ARRAY_SIZE(cmd.macs) ||
 900             mac.default_discard > 1 ||
 901             attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
 902                 return -EINVAL;
 903
 904         mac.attached_filters = cpu_to_le16(attached_filters);
 905
 906         mutex_lock(&mvm->mutex);
 907         memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
 908                &mac, sizeof(mac));
 909
 910         /* send updated bcast filtering configuration */
 911         if (mvm->dbgfs_bcast_filtering.override &&
 912             iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
 913                 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
 914                                            sizeof(cmd), &cmd);
 915         mutex_unlock(&mvm->mutex);
 916
 917         return err ?: count;
 918 }
 919 #endif
 920
 921 #ifdef CONFIG_PM_SLEEP
 922 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
 923                                        size_t count, loff_t *ppos)
 924 {
 925         int store;
 926
 927         if (sscanf(buf, "%d", &store) != 1)
 928                 return -EINVAL;
 929
 930         mvm->store_d3_resume_sram = store;
 931
 932         return count;
 933 }
 934
 935 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
 936                                       size_t count, loff_t *ppos)
 937 {
 938         struct iwl_mvm *mvm = file->private_data;
 939         const struct fw_img *img;
 940         int ofs, len, pos = 0;
 941         size_t bufsz, ret;
 942         char *buf;
 943         u8 *ptr = mvm->d3_resume_sram;
 944
 945         img = &mvm->fw->img[IWL_UCODE_WOWLAN];
 946         len = img->sec[IWL_UCODE_SECTION_DATA].len;
 947
 948         bufsz = len * 4 + 256;
 949         buf = kzalloc(bufsz, GFP_KERNEL);
 950         if (!buf)
 951                 return -ENOMEM;
 952
 953         pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
 954                          mvm->store_d3_resume_sram ? "en" : "dis");
 955
 956         if (ptr) {
 957                 for (ofs = 0; ofs < len; ofs += 16) {
 958                         pos += scnprintf(buf + pos, bufsz - pos,
 959                                          "0x%.4x ", ofs);
 960                         hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
 961                                            bufsz - pos, false);
 962                         pos += strlen(buf + pos);
 963                         if (bufsz - pos > 0)
 964                                 buf[pos++] = '\n';
 965                 }
 966         } else {
 967                 pos += scnprintf(buf + pos, bufsz - pos,
 968                                  "(no data captured)\n");
 969         }
 970
 971         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 972
 973         kfree(buf);
 974
 975         return ret;
 976 }
 977 #endif
 978
 979 #define PRINT_MVM_REF(ref) do {                                 \
 980         if (test_bit(ref, mvm->ref_bitmap))                     \
 981                 pos += scnprintf(buf + pos, bufsz - pos,        \
 982                                  "\t(0x%lx) %s\n",              \
 983                                  BIT(ref), #ref);               \
 984 } while (0)
 985
 986 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
 987                                         char __user *user_buf,
 988                                         size_t count, loff_t *ppos)
 989 {
 990         struct iwl_mvm *mvm = file->private_data;
 991         int pos = 0;
 992         char buf[256];
 993         const size_t bufsz = sizeof(buf);
 994
 995         pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%lx\n",
 996                          mvm->ref_bitmap[0]);
 997
 998         PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
 999         PRINT_MVM_REF(IWL_MVM_REF_SCAN);
1000         PRINT_MVM_REF(IWL_MVM_REF_ROC);
1001         PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1002         PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
1003         PRINT_MVM_REF(IWL_MVM_REF_USER);
1004         PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
1005
1006         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1007 }
1008
1009 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1010                                          size_t count, loff_t *ppos)
1011 {
1012         unsigned long value;
1013         int ret;
1014         bool taken;
1015
1016         ret = kstrtoul(buf, 10, &value);
1017         if (ret < 0)
1018                 return ret;
1019
1020         mutex_lock(&mvm->mutex);
1021
1022         taken = test_bit(IWL_MVM_REF_USER, mvm->ref_bitmap);
1023         if (value == 1 && !taken)
1024                 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1025         else if (value == 0 && taken)
1026                 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1027         else
1028                 ret = -EINVAL;
1029
1030         mutex_unlock(&mvm->mutex);
1031
1032         if (ret < 0)
1033                 return ret;
1034         return count;
1035 }
1036
1037 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1038         _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1039 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1040         _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1041 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do {      \
1042                 if (!debugfs_create_file(alias, mode, parent, mvm,      \
1043                                          &iwl_dbgfs_##name##_ops))      \
1044                         goto err;                                       \
1045         } while (0)
1046 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1047         MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1048
1049 static ssize_t
1050 iwl_dbgfs_prph_reg_read(struct file *file,
1051                         char __user *user_buf,
1052                         size_t count, loff_t *ppos)
1053 {
1054         struct iwl_mvm *mvm = file->private_data;
1055         int pos = 0;
1056         char buf[32];
1057         const size_t bufsz = sizeof(buf);
1058
1059         if (!mvm->dbgfs_prph_reg_addr)
1060                 return -EINVAL;
1061
1062         pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1063                 mvm->dbgfs_prph_reg_addr,
1064                 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1065
1066         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1067 }
1068
1069 static ssize_t
1070 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1071                          size_t count, loff_t *ppos)
1072 {
1073         u8 args;
1074         u32 value;
1075
1076         args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1077         /* if we only want to set the reg address - nothing more to do */
1078         if (args == 1)
1079                 goto out;
1080
1081         /* otherwise, make sure we have both address and value */
1082         if (args != 2)
1083                 return -EINVAL;
1084
1085         iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1086 out:
1087         return count;
1088 }
1089
1090 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1091
1092 /* Device wide debugfs entries */
1093 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1094 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1095 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1096 MVM_DEBUGFS_READ_FILE_OPS(stations);
1097 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1098 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1099 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1100 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1101 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1102 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1103 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1104 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1105 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1106 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
1107
1108 static const struct file_operations iwl_dbgfs_fw_error_dump_ops = {
1109         .open = iwl_dbgfs_fw_error_dump_open,
1110         .read = iwl_dbgfs_fw_error_dump_read,
1111         .release = iwl_dbgfs_fw_error_dump_release,
1112 };
1113
1114 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1115 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1116 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1117 #endif
1118
1119 #ifdef CONFIG_PM_SLEEP
1120 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
1121 #endif
1122
1123 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1124 {
1125         struct dentry *bcast_dir __maybe_unused;
1126         char buf[100];
1127
1128         spin_lock_init(&mvm->drv_stats_lock);
1129
1130         mvm->debugfs_dir = dbgfs_dir;
1131
1132         MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1133         MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1134         MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1135         MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1136         MVM_DEBUGFS_ADD_FILE(fw_error_dump, dbgfs_dir, S_IRUSR);
1137         MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1138         MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
1139         MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1140                              S_IRUSR | S_IWUSR);
1141         MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1142         MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
1143         MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1144         MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
1145         MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR);
1146         MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1147                              S_IWUSR | S_IRUSR);
1148         MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1149         MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1150
1151 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1152         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1153                 bcast_dir = debugfs_create_dir("bcast_filtering",
1154                                                mvm->debugfs_dir);
1155                 if (!bcast_dir)
1156                         goto err;
1157
1158                 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
1159                                 bcast_dir,
1160                                 &mvm->dbgfs_bcast_filtering.override))
1161                         goto err;
1162
1163                 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
1164                                            bcast_dir, S_IWUSR | S_IRUSR);
1165                 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
1166                                            bcast_dir, S_IWUSR | S_IRUSR);
1167         }
1168 #endif
1169
1170 #ifdef CONFIG_PM_SLEEP
1171         MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1172         MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
1173         if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1174                                  mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1175                 goto err;
1176 #endif
1177
1178         if (!debugfs_create_blob("nvm_hw", S_IRUSR,
1179                                   mvm->debugfs_dir, &mvm->nvm_hw_blob))
1180                 goto err;
1181         if (!debugfs_create_blob("nvm_sw", S_IRUSR,
1182                                   mvm->debugfs_dir, &mvm->nvm_sw_blob))
1183                 goto err;
1184         if (!debugfs_create_blob("nvm_calib", S_IRUSR,
1185                                   mvm->debugfs_dir, &mvm->nvm_calib_blob))
1186                 goto err;
1187         if (!debugfs_create_blob("nvm_prod", S_IRUSR,
1188                                   mvm->debugfs_dir, &mvm->nvm_prod_blob))
1189                 goto err;
1190
1191         /*
1192          * Create a symlink with mac80211. It will be removed when mac80211
1193          * exists (before the opmode exists which removes the target.)
1194          */
1195         snprintf(buf, 100, "../../%s/%s",
1196                  dbgfs_dir->d_parent->d_parent->d_name.name,
1197                  dbgfs_dir->d_parent->d_name.name);
1198         if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1199                 goto err;
1200
1201         return 0;
1202 err:
1203         IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1204         return -ENOMEM;
1205 }