kernel/drivers/net/wireless/ath/ath10k/debug.c

   1 /*
   2  * Copyright (c) 2005-2011 Atheros Communications Inc.
   3  * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 #include <linux/module.h>
  19 #include <linux/debugfs.h>
  20 #include <linux/vmalloc.h>
  21 #include <linux/utsname.h>
  22
  23 #include "core.h"
  24 #include "debug.h"
  25 #include "hif.h"
  26 #include "wmi-ops.h"
  27
  28 /* ms */
  29 #define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000
  30
  31 #define ATH10K_FW_CRASH_DUMP_VERSION 1
  32
  33 /**
  34  * enum ath10k_fw_crash_dump_type - types of data in the dump file
  35  * @ATH10K_FW_CRASH_DUMP_REGDUMP: Register crash dump in binary format
  36  */
  37 enum ath10k_fw_crash_dump_type {
  38         ATH10K_FW_CRASH_DUMP_REGISTERS = 0,
  39
  40         ATH10K_FW_CRASH_DUMP_MAX,
  41 };
  42
  43 struct ath10k_tlv_dump_data {
  44         /* see ath10k_fw_crash_dump_type above */
  45         __le32 type;
  46
  47         /* in bytes */
  48         __le32 tlv_len;
  49
  50         /* pad to 32-bit boundaries as needed */
  51         u8 tlv_data[];
  52 } __packed;
  53
  54 struct ath10k_dump_file_data {
  55         /* dump file information */
  56
  57         /* "ATH10K-FW-DUMP" */
  58         char df_magic[16];
  59
  60         __le32 len;
  61
  62         /* file dump version */
  63         __le32 version;
  64
  65         /* some info we can get from ath10k struct that might help */
  66
  67         u8 uuid[16];
  68
  69         __le32 chip_id;
  70
  71         /* 0 for now, in place for later hardware */
  72         __le32 bus_type;
  73
  74         __le32 target_version;
  75         __le32 fw_version_major;
  76         __le32 fw_version_minor;
  77         __le32 fw_version_release;
  78         __le32 fw_version_build;
  79         __le32 phy_capability;
  80         __le32 hw_min_tx_power;
  81         __le32 hw_max_tx_power;
  82         __le32 ht_cap_info;
  83         __le32 vht_cap_info;
  84         __le32 num_rf_chains;
  85
  86         /* firmware version string */
  87         char fw_ver[ETHTOOL_FWVERS_LEN];
  88
  89         /* Kernel related information */
  90
  91         /* time-of-day stamp */
  92         __le64 tv_sec;
  93
  94         /* time-of-day stamp, nano-seconds */
  95         __le64 tv_nsec;
  96
  97         /* LINUX_VERSION_CODE */
  98         __le32 kernel_ver_code;
  99
 100         /* VERMAGIC_STRING */
 101         char kernel_ver[64];
 102
 103         /* room for growth w/out changing binary format */
 104         u8 unused[128];
 105
 106         /* struct ath10k_tlv_dump_data + more */
 107         u8 data[0];
 108 } __packed;
 109
 110 void ath10k_info(struct ath10k *ar, const char *fmt, ...)
 111 {
 112         struct va_format vaf = {
 113                 .fmt = fmt,
 114         };
 115         va_list args;
 116
 117         va_start(args, fmt);
 118         vaf.va = &args;
 119         dev_info(ar->dev, "%pV", &vaf);
 120         trace_ath10k_log_info(ar, &vaf);
 121         va_end(args);
 122 }
 123 EXPORT_SYMBOL(ath10k_info);
 124
 125 void ath10k_print_driver_info(struct ath10k *ar)
 126 {
 127         ath10k_info(ar, "%s (0x%08x, 0x%08x) fw %s api %d htt %d.%d wmi %d cal %s max_sta %d\n",
 128                     ar->hw_params.name,
 129                     ar->target_version,
 130                     ar->chip_id,
 131                     ar->hw->wiphy->fw_version,
 132                     ar->fw_api,
 133                     ar->htt.target_version_major,
 134                     ar->htt.target_version_minor,
 135                     ar->wmi.op_version,
 136                     ath10k_cal_mode_str(ar->cal_mode),
 137                     ar->max_num_stations);
 138         ath10k_info(ar, "debug %d debugfs %d tracing %d dfs %d testmode %d\n",
 139                     config_enabled(CONFIG_ATH10K_DEBUG),
 140                     config_enabled(CONFIG_ATH10K_DEBUGFS),
 141                     config_enabled(CONFIG_ATH10K_TRACING),
 142                     config_enabled(CONFIG_ATH10K_DFS_CERTIFIED),
 143                     config_enabled(CONFIG_NL80211_TESTMODE));
 144 }
 145 EXPORT_SYMBOL(ath10k_print_driver_info);
 146
 147 void ath10k_err(struct ath10k *ar, const char *fmt, ...)
 148 {
 149         struct va_format vaf = {
 150                 .fmt = fmt,
 151         };
 152         va_list args;
 153
 154         va_start(args, fmt);
 155         vaf.va = &args;
 156         dev_err(ar->dev, "%pV", &vaf);
 157         trace_ath10k_log_err(ar, &vaf);
 158         va_end(args);
 159 }
 160 EXPORT_SYMBOL(ath10k_err);
 161
 162 void ath10k_warn(struct ath10k *ar, const char *fmt, ...)
 163 {
 164         struct va_format vaf = {
 165                 .fmt = fmt,
 166         };
 167         va_list args;
 168
 169         va_start(args, fmt);
 170         vaf.va = &args;
 171         dev_warn_ratelimited(ar->dev, "%pV", &vaf);
 172         trace_ath10k_log_warn(ar, &vaf);
 173
 174         va_end(args);
 175 }
 176 EXPORT_SYMBOL(ath10k_warn);
 177
 178 #ifdef CONFIG_ATH10K_DEBUGFS
 179
 180 static ssize_t ath10k_read_wmi_services(struct file *file,
 181                                         char __user *user_buf,
 182                                         size_t count, loff_t *ppos)
 183 {
 184         struct ath10k *ar = file->private_data;
 185         char *buf;
 186         unsigned int len = 0, buf_len = 4096;
 187         const char *name;
 188         ssize_t ret_cnt;
 189         bool enabled;
 190         int i;
 191
 192         buf = kzalloc(buf_len, GFP_KERNEL);
 193         if (!buf)
 194                 return -ENOMEM;
 195
 196         mutex_lock(&ar->conf_mutex);
 197
 198         if (len > buf_len)
 199                 len = buf_len;
 200
 201         spin_lock_bh(&ar->data_lock);
 202         for (i = 0; i < WMI_SERVICE_MAX; i++) {
 203                 enabled = test_bit(i, ar->wmi.svc_map);
 204                 name = wmi_service_name(i);
 205
 206                 if (!name) {
 207                         if (enabled)
 208                                 len += scnprintf(buf + len, buf_len - len,
 209                                                  "%-40s %s (bit %d)\n",
 210                                                  "unknown", "enabled", i);
 211
 212                         continue;
 213                 }
 214
 215                 len += scnprintf(buf + len, buf_len - len,
 216                                  "%-40s %s\n",
 217                                  name, enabled ? "enabled" : "-");
 218         }
 219         spin_unlock_bh(&ar->data_lock);
 220
 221         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 222
 223         mutex_unlock(&ar->conf_mutex);
 224
 225         kfree(buf);
 226         return ret_cnt;
 227 }
 228
 229 static const struct file_operations fops_wmi_services = {
 230         .read = ath10k_read_wmi_services,
 231         .open = simple_open,
 232         .owner = THIS_MODULE,
 233         .llseek = default_llseek,
 234 };
 235
 236 static void ath10k_debug_fw_stats_pdevs_free(struct list_head *head)
 237 {
 238         struct ath10k_fw_stats_pdev *i, *tmp;
 239
 240         list_for_each_entry_safe(i, tmp, head, list) {
 241                 list_del(&i->list);
 242                 kfree(i);
 243         }
 244 }
 245
 246 static void ath10k_debug_fw_stats_vdevs_free(struct list_head *head)
 247 {
 248         struct ath10k_fw_stats_vdev *i, *tmp;
 249
 250         list_for_each_entry_safe(i, tmp, head, list) {
 251                 list_del(&i->list);
 252                 kfree(i);
 253         }
 254 }
 255
 256 static void ath10k_debug_fw_stats_peers_free(struct list_head *head)
 257 {
 258         struct ath10k_fw_stats_peer *i, *tmp;
 259
 260         list_for_each_entry_safe(i, tmp, head, list) {
 261                 list_del(&i->list);
 262                 kfree(i);
 263         }
 264 }
 265
 266 static void ath10k_debug_fw_stats_reset(struct ath10k *ar)
 267 {
 268         spin_lock_bh(&ar->data_lock);
 269         ar->debug.fw_stats_done = false;
 270         ath10k_debug_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs);
 271         ath10k_debug_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
 272         ath10k_debug_fw_stats_peers_free(&ar->debug.fw_stats.peers);
 273         spin_unlock_bh(&ar->data_lock);
 274 }
 275
 276 static size_t ath10k_debug_fw_stats_num_peers(struct list_head *head)
 277 {
 278         struct ath10k_fw_stats_peer *i;
 279         size_t num = 0;
 280
 281         list_for_each_entry(i, head, list)
 282                 ++num;
 283
 284         return num;
 285 }
 286
 287 static size_t ath10k_debug_fw_stats_num_vdevs(struct list_head *head)
 288 {
 289         struct ath10k_fw_stats_vdev *i;
 290         size_t num = 0;
 291
 292         list_for_each_entry(i, head, list)
 293                 ++num;
 294
 295         return num;
 296 }
 297
 298 void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
 299 {
 300         struct ath10k_fw_stats stats = {};
 301         bool is_start, is_started, is_end;
 302         size_t num_peers;
 303         size_t num_vdevs;
 304         int ret;
 305
 306         INIT_LIST_HEAD(&stats.pdevs);
 307         INIT_LIST_HEAD(&stats.vdevs);
 308         INIT_LIST_HEAD(&stats.peers);
 309
 310         spin_lock_bh(&ar->data_lock);
 311         ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats);
 312         if (ret) {
 313                 ath10k_warn(ar, "failed to pull fw stats: %d\n", ret);
 314                 goto unlock;
 315         }
 316
 317         /* Stat data may exceed htc-wmi buffer limit. In such case firmware
 318          * splits the stats data and delivers it in a ping-pong fashion of
 319          * request cmd-update event.
 320          *
 321          * However there is no explicit end-of-data. Instead start-of-data is
 322          * used as an implicit one. This works as follows:
 323          *  a) discard stat update events until one with pdev stats is
 324          *     delivered - this skips session started at end of (b)
 325          *  b) consume stat update events until another one with pdev stats is
 326          *     delivered which is treated as end-of-data and is itself discarded
 327          */
 328
 329         if (ar->debug.fw_stats_done) {
 330                 ath10k_warn(ar, "received unsolicited stats update event\n");
 331                 goto free;
 332         }
 333
 334         num_peers = ath10k_debug_fw_stats_num_peers(&ar->debug.fw_stats.peers);
 335         num_vdevs = ath10k_debug_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs);
 336         is_start = (list_empty(&ar->debug.fw_stats.pdevs) &&
 337                     !list_empty(&stats.pdevs));
 338         is_end = (!list_empty(&ar->debug.fw_stats.pdevs) &&
 339                   !list_empty(&stats.pdevs));
 340
 341         if (is_start)
 342                 list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs);
 343
 344         if (is_end)
 345                 ar->debug.fw_stats_done = true;
 346
 347         is_started = !list_empty(&ar->debug.fw_stats.pdevs);
 348
 349         if (is_started && !is_end) {
 350                 if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) {
 351                         /* Although this is unlikely impose a sane limit to
 352                          * prevent firmware from DoS-ing the host.
 353                          */
 354                         ath10k_warn(ar, "dropping fw peer stats\n");
 355                         goto free;
 356                 }
 357
 358                 if (num_vdevs >= BITS_PER_LONG) {
 359                         ath10k_warn(ar, "dropping fw vdev stats\n");
 360                         goto free;
 361                 }
 362
 363                 list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers);
 364                 list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs);
 365         }
 366
 367         complete(&ar->debug.fw_stats_complete);
 368
 369 free:
 370         /* In some cases lists have been spliced and cleared. Free up
 371          * resources if that is not the case.
 372          */
 373         ath10k_debug_fw_stats_pdevs_free(&stats.pdevs);
 374         ath10k_debug_fw_stats_vdevs_free(&stats.vdevs);
 375         ath10k_debug_fw_stats_peers_free(&stats.peers);
 376
 377 unlock:
 378         spin_unlock_bh(&ar->data_lock);
 379 }
 380
 381 static int ath10k_debug_fw_stats_request(struct ath10k *ar)
 382 {
 383         unsigned long timeout;
 384         int ret;
 385
 386         lockdep_assert_held(&ar->conf_mutex);
 387
 388         timeout = jiffies + msecs_to_jiffies(1*HZ);
 389
 390         ath10k_debug_fw_stats_reset(ar);
 391
 392         for (;;) {
 393                 if (time_after(jiffies, timeout))
 394                         return -ETIMEDOUT;
 395
 396                 reinit_completion(&ar->debug.fw_stats_complete);
 397
 398                 ret = ath10k_wmi_request_stats(ar,
 399                                                WMI_STAT_PDEV |
 400                                                WMI_STAT_VDEV |
 401                                                WMI_STAT_PEER);
 402                 if (ret) {
 403                         ath10k_warn(ar, "could not request stats (%d)\n", ret);
 404                         return ret;
 405                 }
 406
 407                 ret = wait_for_completion_timeout(&ar->debug.fw_stats_complete,
 408                                                   1*HZ);
 409                 if (ret == 0)
 410                         return -ETIMEDOUT;
 411
 412                 spin_lock_bh(&ar->data_lock);
 413                 if (ar->debug.fw_stats_done) {
 414                         spin_unlock_bh(&ar->data_lock);
 415                         break;
 416                 }
 417                 spin_unlock_bh(&ar->data_lock);
 418         }
 419
 420         return 0;
 421 }
 422
 423 /* FIXME: How to calculate the buffer size sanely? */
 424 #define ATH10K_FW_STATS_BUF_SIZE (1024*1024)
 425
 426 static void ath10k_fw_stats_fill(struct ath10k *ar,
 427                                  struct ath10k_fw_stats *fw_stats,
 428                                  char *buf)
 429 {
 430         unsigned int len = 0;
 431         unsigned int buf_len = ATH10K_FW_STATS_BUF_SIZE;
 432         const struct ath10k_fw_stats_pdev *pdev;
 433         const struct ath10k_fw_stats_vdev *vdev;
 434         const struct ath10k_fw_stats_peer *peer;
 435         size_t num_peers;
 436         size_t num_vdevs;
 437         int i;
 438
 439         spin_lock_bh(&ar->data_lock);
 440
 441         pdev = list_first_entry_or_null(&fw_stats->pdevs,
 442                                         struct ath10k_fw_stats_pdev, list);
 443         if (!pdev) {
 444                 ath10k_warn(ar, "failed to get pdev stats\n");
 445                 goto unlock;
 446         }
 447
 448         num_peers = ath10k_debug_fw_stats_num_peers(&fw_stats->peers);
 449         num_vdevs = ath10k_debug_fw_stats_num_vdevs(&fw_stats->vdevs);
 450
 451         len += scnprintf(buf + len, buf_len - len, "\n");
 452         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 453                          "ath10k PDEV stats");
 454         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 455                                  "=================");
 456
 457         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 458                          "Channel noise floor", pdev->ch_noise_floor);
 459         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 460                          "Channel TX power", pdev->chan_tx_power);
 461         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 462                          "TX frame count", pdev->tx_frame_count);
 463         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 464                          "RX frame count", pdev->rx_frame_count);
 465         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 466                          "RX clear count", pdev->rx_clear_count);
 467         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 468                          "Cycle count", pdev->cycle_count);
 469         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 470                          "PHY error count", pdev->phy_err_count);
 471         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 472                          "RTS bad count", pdev->rts_bad);
 473         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 474                          "RTS good count", pdev->rts_good);
 475         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 476                          "FCS bad count", pdev->fcs_bad);
 477         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 478                          "No beacon count", pdev->no_beacons);
 479         len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
 480                          "MIB int count", pdev->mib_int_count);
 481
 482         len += scnprintf(buf + len, buf_len - len, "\n");
 483         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 484                          "ath10k PDEV TX stats");
 485         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 486                                  "=================");
 487
 488         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 489                          "HTT cookies queued", pdev->comp_queued);
 490         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 491                          "HTT cookies disp.", pdev->comp_delivered);
 492         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 493                          "MSDU queued", pdev->msdu_enqued);
 494         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 495                          "MPDU queued", pdev->mpdu_enqued);
 496         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 497                          "MSDUs dropped", pdev->wmm_drop);
 498         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 499                          "Local enqued", pdev->local_enqued);
 500         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 501                          "Local freed", pdev->local_freed);
 502         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 503                          "HW queued", pdev->hw_queued);
 504         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 505                          "PPDUs reaped", pdev->hw_reaped);
 506         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 507                          "Num underruns", pdev->underrun);
 508         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 509                          "PPDUs cleaned", pdev->tx_abort);
 510         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 511                          "MPDUs requed", pdev->mpdus_requed);
 512         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 513                          "Excessive retries", pdev->tx_ko);
 514         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 515                          "HW rate", pdev->data_rc);
 516         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 517                          "Sched self tiggers", pdev->self_triggers);
 518         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 519                          "Dropped due to SW retries",
 520                          pdev->sw_retry_failure);
 521         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 522                          "Illegal rate phy errors",
 523                          pdev->illgl_rate_phy_err);
 524         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 525                          "Pdev continous xretry", pdev->pdev_cont_xretry);
 526         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 527                          "TX timeout", pdev->pdev_tx_timeout);
 528         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 529                          "PDEV resets", pdev->pdev_resets);
 530         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 531                          "PHY underrun", pdev->phy_underrun);
 532         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 533                          "MPDU is more than txop limit", pdev->txop_ovf);
 534
 535         len += scnprintf(buf + len, buf_len - len, "\n");
 536         len += scnprintf(buf + len, buf_len - len, "%30s\n",
 537                          "ath10k PDEV RX stats");
 538         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 539                                  "=================");
 540
 541         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 542                          "Mid PPDU route change",
 543                          pdev->mid_ppdu_route_change);
 544         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 545                          "Tot. number of statuses", pdev->status_rcvd);
 546         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 547                          "Extra frags on rings 0", pdev->r0_frags);
 548         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 549                          "Extra frags on rings 1", pdev->r1_frags);
 550         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 551                          "Extra frags on rings 2", pdev->r2_frags);
 552         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 553                          "Extra frags on rings 3", pdev->r3_frags);
 554         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 555                          "MSDUs delivered to HTT", pdev->htt_msdus);
 556         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 557                          "MPDUs delivered to HTT", pdev->htt_mpdus);
 558         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 559                          "MSDUs delivered to stack", pdev->loc_msdus);
 560         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 561                          "MPDUs delivered to stack", pdev->loc_mpdus);
 562         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 563                          "Oversized AMSUs", pdev->oversize_amsdu);
 564         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 565                          "PHY errors", pdev->phy_errs);
 566         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 567                          "PHY errors drops", pdev->phy_err_drop);
 568         len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
 569                          "MPDU errors (FCS, MIC, ENC)", pdev->mpdu_errs);
 570
 571         len += scnprintf(buf + len, buf_len - len, "\n");
 572         len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n",
 573                          "ath10k VDEV stats", num_vdevs);
 574         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 575                                  "=================");
 576
 577         list_for_each_entry(vdev, &fw_stats->vdevs, list) {
 578                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 579                                  "vdev id", vdev->vdev_id);
 580                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 581                                  "beacon snr", vdev->beacon_snr);
 582                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 583                                  "data snr", vdev->data_snr);
 584                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 585                                  "num rx frames", vdev->num_rx_frames);
 586                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 587                                  "num rts fail", vdev->num_rts_fail);
 588                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 589                                  "num rts success", vdev->num_rts_success);
 590                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 591                                  "num rx err", vdev->num_rx_err);
 592                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 593                                  "num rx discard", vdev->num_rx_discard);
 594                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 595                                  "num tx not acked", vdev->num_tx_not_acked);
 596
 597                 for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames); i++)
 598                         len += scnprintf(buf + len, buf_len - len,
 599                                         "%25s [%02d] %u\n",
 600                                          "num tx frames", i,
 601                                          vdev->num_tx_frames[i]);
 602
 603                 for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames_retries); i++)
 604                         len += scnprintf(buf + len, buf_len - len,
 605                                         "%25s [%02d] %u\n",
 606                                          "num tx frames retries", i,
 607                                          vdev->num_tx_frames_retries[i]);
 608
 609                 for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames_failures); i++)
 610                         len += scnprintf(buf + len, buf_len - len,
 611                                         "%25s [%02d] %u\n",
 612                                          "num tx frames failures", i,
 613                                          vdev->num_tx_frames_failures[i]);
 614
 615                 for (i = 0 ; i < ARRAY_SIZE(vdev->tx_rate_history); i++)
 616                         len += scnprintf(buf + len, buf_len - len,
 617                                         "%25s [%02d] 0x%08x\n",
 618                                          "tx rate history", i,
 619                                          vdev->tx_rate_history[i]);
 620
 621                 for (i = 0 ; i < ARRAY_SIZE(vdev->beacon_rssi_history); i++)
 622                         len += scnprintf(buf + len, buf_len - len,
 623                                         "%25s [%02d] %u\n",
 624                                          "beacon rssi history", i,
 625                                          vdev->beacon_rssi_history[i]);
 626
 627                 len += scnprintf(buf + len, buf_len - len, "\n");
 628         }
 629
 630         len += scnprintf(buf + len, buf_len - len, "\n");
 631         len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n",
 632                          "ath10k PEER stats", num_peers);
 633         len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
 634                                  "=================");
 635
 636         list_for_each_entry(peer, &fw_stats->peers, list) {
 637                 len += scnprintf(buf + len, buf_len - len, "%30s %pM\n",
 638                                  "Peer MAC address", peer->peer_macaddr);
 639                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 640                                  "Peer RSSI", peer->peer_rssi);
 641                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 642                                  "Peer TX rate", peer->peer_tx_rate);
 643                 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
 644                                  "Peer RX rate", peer->peer_rx_rate);
 645                 len += scnprintf(buf + len, buf_len - len, "\n");
 646         }
 647
 648 unlock:
 649         spin_unlock_bh(&ar->data_lock);
 650
 651         if (len >= buf_len)
 652                 buf[len - 1] = 0;
 653         else
 654                 buf[len] = 0;
 655 }
 656
 657 static int ath10k_fw_stats_open(struct inode *inode, struct file *file)
 658 {
 659         struct ath10k *ar = inode->i_private;
 660         void *buf = NULL;
 661         int ret;
 662
 663         mutex_lock(&ar->conf_mutex);
 664
 665         if (ar->state != ATH10K_STATE_ON) {
 666                 ret = -ENETDOWN;
 667                 goto err_unlock;
 668         }
 669
 670         buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE);
 671         if (!buf) {
 672                 ret = -ENOMEM;
 673                 goto err_unlock;
 674         }
 675
 676         ret = ath10k_debug_fw_stats_request(ar);
 677         if (ret) {
 678                 ath10k_warn(ar, "failed to request fw stats: %d\n", ret);
 679                 goto err_free;
 680         }
 681
 682         ath10k_fw_stats_fill(ar, &ar->debug.fw_stats, buf);
 683         file->private_data = buf;
 684
 685         mutex_unlock(&ar->conf_mutex);
 686         return 0;
 687
 688 err_free:
 689         vfree(buf);
 690
 691 err_unlock:
 692         mutex_unlock(&ar->conf_mutex);
 693         return ret;
 694 }
 695
 696 static int ath10k_fw_stats_release(struct inode *inode, struct file *file)
 697 {
 698         vfree(file->private_data);
 699
 700         return 0;
 701 }
 702
 703 static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf,
 704                                     size_t count, loff_t *ppos)
 705 {
 706         const char *buf = file->private_data;
 707         unsigned int len = strlen(buf);
 708
 709         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 710 }
 711
 712 static const struct file_operations fops_fw_stats = {
 713         .open = ath10k_fw_stats_open,
 714         .release = ath10k_fw_stats_release,
 715         .read = ath10k_fw_stats_read,
 716         .owner = THIS_MODULE,
 717         .llseek = default_llseek,
 718 };
 719
 720 static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file,
 721                                                 char __user *user_buf,
 722                                                 size_t count, loff_t *ppos)
 723 {
 724         struct ath10k *ar = file->private_data;
 725         int ret, len, buf_len;
 726         char *buf;
 727
 728         buf_len = 500;
 729         buf = kmalloc(buf_len, GFP_KERNEL);
 730         if (!buf)
 731                 return -ENOMEM;
 732
 733         spin_lock_bh(&ar->data_lock);
 734
 735         len = 0;
 736         len += scnprintf(buf + len, buf_len - len,
 737                          "fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter);
 738         len += scnprintf(buf + len, buf_len - len,
 739                          "fw_warm_reset_counter\t\t%d\n",
 740                          ar->stats.fw_warm_reset_counter);
 741         len += scnprintf(buf + len, buf_len - len,
 742                          "fw_cold_reset_counter\t\t%d\n",
 743                          ar->stats.fw_cold_reset_counter);
 744
 745         spin_unlock_bh(&ar->data_lock);
 746
 747         ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 748
 749         kfree(buf);
 750
 751         return ret;
 752 }
 753
 754 static const struct file_operations fops_fw_reset_stats = {
 755         .open = simple_open,
 756         .read = ath10k_debug_fw_reset_stats_read,
 757         .owner = THIS_MODULE,
 758         .llseek = default_llseek,
 759 };
 760
 761 /* This is a clean assert crash in firmware. */
 762 static int ath10k_debug_fw_assert(struct ath10k *ar)
 763 {
 764         struct wmi_vdev_install_key_cmd *cmd;
 765         struct sk_buff *skb;
 766
 767         skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16);
 768         if (!skb)
 769                 return -ENOMEM;
 770
 771         cmd = (struct wmi_vdev_install_key_cmd *)skb->data;
 772         memset(cmd, 0, sizeof(*cmd));
 773
 774         /* big enough number so that firmware asserts */
 775         cmd->vdev_id = __cpu_to_le32(0x7ffe);
 776
 777         return ath10k_wmi_cmd_send(ar, skb,
 778                                    ar->wmi.cmd->vdev_install_key_cmdid);
 779 }
 780
 781 static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
 782                                              char __user *user_buf,
 783                                              size_t count, loff_t *ppos)
 784 {
 785         const char buf[] =
 786                 "To simulate firmware crash write one of the keywords to this file:\n"
 787                 "`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n"
 788                 "`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n"
 789                 "`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n"
 790                 "`hw-restart` - this will simply queue hw restart without fw/hw actually crashing.\n";
 791
 792         return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 793 }
 794
 795 /* Simulate firmware crash:
 796  * 'soft': Call wmi command causing firmware hang. This firmware hang is
 797  * recoverable by warm firmware reset.
 798  * 'hard': Force firmware crash by setting any vdev parameter for not allowed
 799  * vdev id. This is hard firmware crash because it is recoverable only by cold
 800  * firmware reset.
 801  */
 802 static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
 803                                               const char __user *user_buf,
 804                                               size_t count, loff_t *ppos)
 805 {
 806         struct ath10k *ar = file->private_data;
 807         char buf[32];
 808         int ret;
 809
 810         mutex_lock(&ar->conf_mutex);
 811
 812         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
 813
 814         /* make sure that buf is null terminated */
 815         buf[sizeof(buf) - 1] = 0;
 816
 817         if (ar->state != ATH10K_STATE_ON &&
 818             ar->state != ATH10K_STATE_RESTARTED) {
 819                 ret = -ENETDOWN;
 820                 goto exit;
 821         }
 822
 823         /* drop the possible '\n' from the end */
 824         if (buf[count - 1] == '\n') {
 825                 buf[count - 1] = 0;
 826                 count--;
 827         }
 828
 829         if (!strcmp(buf, "soft")) {
 830                 ath10k_info(ar, "simulating soft firmware crash\n");
 831                 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
 832         } else if (!strcmp(buf, "hard")) {
 833                 ath10k_info(ar, "simulating hard firmware crash\n");
 834                 /* 0x7fff is vdev id, and it is always out of range for all
 835                  * firmware variants in order to force a firmware crash.
 836                  */
 837                 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
 838                                                 ar->wmi.vdev_param->rts_threshold,
 839                                                 0);
 840         } else if (!strcmp(buf, "assert")) {
 841                 ath10k_info(ar, "simulating firmware assert crash\n");
 842                 ret = ath10k_debug_fw_assert(ar);
 843         } else if (!strcmp(buf, "hw-restart")) {
 844                 ath10k_info(ar, "user requested hw restart\n");
 845                 queue_work(ar->workqueue, &ar->restart_work);
 846                 ret = 0;
 847         } else {
 848                 ret = -EINVAL;
 849                 goto exit;
 850         }
 851
 852         if (ret) {
 853                 ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret);
 854                 goto exit;
 855         }
 856
 857         ret = count;
 858
 859 exit:
 860         mutex_unlock(&ar->conf_mutex);
 861         return ret;
 862 }
 863
 864 static const struct file_operations fops_simulate_fw_crash = {
 865         .read = ath10k_read_simulate_fw_crash,
 866         .write = ath10k_write_simulate_fw_crash,
 867         .open = simple_open,
 868         .owner = THIS_MODULE,
 869         .llseek = default_llseek,
 870 };
 871
 872 static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
 873                                    size_t count, loff_t *ppos)
 874 {
 875         struct ath10k *ar = file->private_data;
 876         unsigned int len;
 877         char buf[50];
 878
 879         len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id);
 880
 881         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 882 }
 883
 884 static const struct file_operations fops_chip_id = {
 885         .read = ath10k_read_chip_id,
 886         .open = simple_open,
 887         .owner = THIS_MODULE,
 888         .llseek = default_llseek,
 889 };
 890
 891 struct ath10k_fw_crash_data *
 892 ath10k_debug_get_new_fw_crash_data(struct ath10k *ar)
 893 {
 894         struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
 895
 896         lockdep_assert_held(&ar->data_lock);
 897
 898         crash_data->crashed_since_read = true;
 899         uuid_le_gen(&crash_data->uuid);
 900         getnstimeofday(&crash_data->timestamp);
 901
 902         return crash_data;
 903 }
 904 EXPORT_SYMBOL(ath10k_debug_get_new_fw_crash_data);
 905
 906 static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar)
 907 {
 908         struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
 909         struct ath10k_dump_file_data *dump_data;
 910         struct ath10k_tlv_dump_data *dump_tlv;
 911         int hdr_len = sizeof(*dump_data);
 912         unsigned int len, sofar = 0;
 913         unsigned char *buf;
 914
 915         len = hdr_len;
 916         len += sizeof(*dump_tlv) + sizeof(crash_data->registers);
 917
 918         sofar += hdr_len;
 919
 920         /* This is going to get big when we start dumping FW RAM and such,
 921          * so go ahead and use vmalloc.
 922          */
 923         buf = vzalloc(len);
 924         if (!buf)
 925                 return NULL;
 926
 927         spin_lock_bh(&ar->data_lock);
 928
 929         if (!crash_data->crashed_since_read) {
 930                 spin_unlock_bh(&ar->data_lock);
 931                 vfree(buf);
 932                 return NULL;
 933         }
 934
 935         dump_data = (struct ath10k_dump_file_data *)(buf);
 936         strlcpy(dump_data->df_magic, "ATH10K-FW-DUMP",
 937                 sizeof(dump_data->df_magic));
 938         dump_data->len = cpu_to_le32(len);
 939
 940         dump_data->version = cpu_to_le32(ATH10K_FW_CRASH_DUMP_VERSION);
 941
 942         memcpy(dump_data->uuid, &crash_data->uuid, sizeof(dump_data->uuid));
 943         dump_data->chip_id = cpu_to_le32(ar->chip_id);
 944         dump_data->bus_type = cpu_to_le32(0);
 945         dump_data->target_version = cpu_to_le32(ar->target_version);
 946         dump_data->fw_version_major = cpu_to_le32(ar->fw_version_major);
 947         dump_data->fw_version_minor = cpu_to_le32(ar->fw_version_minor);
 948         dump_data->fw_version_release = cpu_to_le32(ar->fw_version_release);
 949         dump_data->fw_version_build = cpu_to_le32(ar->fw_version_build);
 950         dump_data->phy_capability = cpu_to_le32(ar->phy_capability);
 951         dump_data->hw_min_tx_power = cpu_to_le32(ar->hw_min_tx_power);
 952         dump_data->hw_max_tx_power = cpu_to_le32(ar->hw_max_tx_power);
 953         dump_data->ht_cap_info = cpu_to_le32(ar->ht_cap_info);
 954         dump_data->vht_cap_info = cpu_to_le32(ar->vht_cap_info);
 955         dump_data->num_rf_chains = cpu_to_le32(ar->num_rf_chains);
 956
 957         strlcpy(dump_data->fw_ver, ar->hw->wiphy->fw_version,
 958                 sizeof(dump_data->fw_ver));
 959
 960         dump_data->kernel_ver_code = 0;
 961         strlcpy(dump_data->kernel_ver, init_utsname()->release,
 962                 sizeof(dump_data->kernel_ver));
 963
 964         dump_data->tv_sec = cpu_to_le64(crash_data->timestamp.tv_sec);
 965         dump_data->tv_nsec = cpu_to_le64(crash_data->timestamp.tv_nsec);
 966
 967         /* Gather crash-dump */
 968         dump_tlv = (struct ath10k_tlv_dump_data *)(buf + sofar);
 969         dump_tlv->type = cpu_to_le32(ATH10K_FW_CRASH_DUMP_REGISTERS);
 970         dump_tlv->tlv_len = cpu_to_le32(sizeof(crash_data->registers));
 971         memcpy(dump_tlv->tlv_data, &crash_data->registers,
 972                sizeof(crash_data->registers));
 973         sofar += sizeof(*dump_tlv) + sizeof(crash_data->registers);
 974
 975         ar->debug.fw_crash_data->crashed_since_read = false;
 976
 977         spin_unlock_bh(&ar->data_lock);
 978
 979         return dump_data;
 980 }
 981
 982 static int ath10k_fw_crash_dump_open(struct inode *inode, struct file *file)
 983 {
 984         struct ath10k *ar = inode->i_private;
 985         struct ath10k_dump_file_data *dump;
 986
 987         dump = ath10k_build_dump_file(ar);
 988         if (!dump)
 989                 return -ENODATA;
 990
 991         file->private_data = dump;
 992
 993         return 0;
 994 }
 995
 996 static ssize_t ath10k_fw_crash_dump_read(struct file *file,
 997                                          char __user *user_buf,
 998                                          size_t count, loff_t *ppos)
 999 {
1000         struct ath10k_dump_file_data *dump_file = file->private_data;
1001
1002         return simple_read_from_buffer(user_buf, count, ppos,
1003                                        dump_file,
1004                                        le32_to_cpu(dump_file->len));
1005 }
1006
1007 static int ath10k_fw_crash_dump_release(struct inode *inode,
1008                                         struct file *file)
1009 {
1010         vfree(file->private_data);
1011
1012         return 0;
1013 }
1014
1015 static const struct file_operations fops_fw_crash_dump = {
1016         .open = ath10k_fw_crash_dump_open,
1017         .read = ath10k_fw_crash_dump_read,
1018         .release = ath10k_fw_crash_dump_release,
1019         .owner = THIS_MODULE,
1020         .llseek = default_llseek,
1021 };
1022
1023 static ssize_t ath10k_reg_addr_read(struct file *file,
1024                                     char __user *user_buf,
1025                                     size_t count, loff_t *ppos)
1026 {
1027         struct ath10k *ar = file->private_data;
1028         u8 buf[32];
1029         unsigned int len = 0;
1030         u32 reg_addr;
1031
1032         mutex_lock(&ar->conf_mutex);
1033         reg_addr = ar->debug.reg_addr;
1034         mutex_unlock(&ar->conf_mutex);
1035
1036         len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", reg_addr);
1037
1038         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1039 }
1040
1041 static ssize_t ath10k_reg_addr_write(struct file *file,
1042                                      const char __user *user_buf,
1043                                      size_t count, loff_t *ppos)
1044 {
1045         struct ath10k *ar = file->private_data;
1046         u32 reg_addr;
1047         int ret;
1048
1049         ret = kstrtou32_from_user(user_buf, count, 0, &reg_addr);
1050         if (ret)
1051                 return ret;
1052
1053         if (!IS_ALIGNED(reg_addr, 4))
1054                 return -EFAULT;
1055
1056         mutex_lock(&ar->conf_mutex);
1057         ar->debug.reg_addr = reg_addr;
1058         mutex_unlock(&ar->conf_mutex);
1059
1060         return count;
1061 }
1062
1063 static const struct file_operations fops_reg_addr = {
1064         .read = ath10k_reg_addr_read,
1065         .write = ath10k_reg_addr_write,
1066         .open = simple_open,
1067         .owner = THIS_MODULE,
1068         .llseek = default_llseek,
1069 };
1070
1071 static ssize_t ath10k_reg_value_read(struct file *file,
1072                                      char __user *user_buf,
1073                                      size_t count, loff_t *ppos)
1074 {
1075         struct ath10k *ar = file->private_data;
1076         u8 buf[48];
1077         unsigned int len;
1078         u32 reg_addr, reg_val;
1079         int ret;
1080
1081         mutex_lock(&ar->conf_mutex);
1082
1083         if (ar->state != ATH10K_STATE_ON &&
1084             ar->state != ATH10K_STATE_UTF) {
1085                 ret = -ENETDOWN;
1086                 goto exit;
1087         }
1088
1089         reg_addr = ar->debug.reg_addr;
1090
1091         reg_val = ath10k_hif_read32(ar, reg_addr);
1092         len = scnprintf(buf, sizeof(buf), "0x%08x:0x%08x\n", reg_addr, reg_val);
1093
1094         ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1095
1096 exit:
1097         mutex_unlock(&ar->conf_mutex);
1098
1099         return ret;
1100 }
1101
1102 static ssize_t ath10k_reg_value_write(struct file *file,
1103                                       const char __user *user_buf,
1104                                       size_t count, loff_t *ppos)
1105 {
1106         struct ath10k *ar = file->private_data;
1107         u32 reg_addr, reg_val;
1108         int ret;
1109
1110         mutex_lock(&ar->conf_mutex);
1111
1112         if (ar->state != ATH10K_STATE_ON &&
1113             ar->state != ATH10K_STATE_UTF) {
1114                 ret = -ENETDOWN;
1115                 goto exit;
1116         }
1117
1118         reg_addr = ar->debug.reg_addr;
1119
1120         ret = kstrtou32_from_user(user_buf, count, 0, &reg_val);
1121         if (ret)
1122                 goto exit;
1123
1124         ath10k_hif_write32(ar, reg_addr, reg_val);
1125
1126         ret = count;
1127
1128 exit:
1129         mutex_unlock(&ar->conf_mutex);
1130
1131         return ret;
1132 }
1133
1134 static const struct file_operations fops_reg_value = {
1135         .read = ath10k_reg_value_read,
1136         .write = ath10k_reg_value_write,
1137         .open = simple_open,
1138         .owner = THIS_MODULE,
1139         .llseek = default_llseek,
1140 };
1141
1142 static ssize_t ath10k_mem_value_read(struct file *file,
1143                                      char __user *user_buf,
1144                                      size_t count, loff_t *ppos)
1145 {
1146         struct ath10k *ar = file->private_data;
1147         u8 *buf;
1148         int ret;
1149
1150         if (*ppos < 0)
1151                 return -EINVAL;
1152
1153         if (!count)
1154                 return 0;
1155
1156         mutex_lock(&ar->conf_mutex);
1157
1158         buf = vmalloc(count);
1159         if (!buf) {
1160                 ret = -ENOMEM;
1161                 goto exit;
1162         }
1163
1164         if (ar->state != ATH10K_STATE_ON &&
1165             ar->state != ATH10K_STATE_UTF) {
1166                 ret = -ENETDOWN;
1167                 goto exit;
1168         }
1169
1170         ret = ath10k_hif_diag_read(ar, *ppos, buf, count);
1171         if (ret) {
1172                 ath10k_warn(ar, "failed to read address 0x%08x via diagnose window fnrom debugfs: %d\n",
1173                             (u32)(*ppos), ret);
1174                 goto exit;
1175         }
1176
1177         ret = copy_to_user(user_buf, buf, count);
1178         if (ret) {
1179                 ret = -EFAULT;
1180                 goto exit;
1181         }
1182
1183         count -= ret;
1184         *ppos += count;
1185         ret = count;
1186
1187 exit:
1188         vfree(buf);
1189         mutex_unlock(&ar->conf_mutex);
1190
1191         return ret;
1192 }
1193
1194 static ssize_t ath10k_mem_value_write(struct file *file,
1195                                       const char __user *user_buf,
1196                                       size_t count, loff_t *ppos)
1197 {
1198         struct ath10k *ar = file->private_data;
1199         u8 *buf;
1200         int ret;
1201
1202         if (*ppos < 0)
1203                 return -EINVAL;
1204
1205         if (!count)
1206                 return 0;
1207
1208         mutex_lock(&ar->conf_mutex);
1209
1210         buf = vmalloc(count);
1211         if (!buf) {
1212                 ret = -ENOMEM;
1213                 goto exit;
1214         }
1215
1216         if (ar->state != ATH10K_STATE_ON &&
1217             ar->state != ATH10K_STATE_UTF) {
1218                 ret = -ENETDOWN;
1219                 goto exit;
1220         }
1221
1222         ret = copy_from_user(buf, user_buf, count);
1223         if (ret) {
1224                 ret = -EFAULT;
1225                 goto exit;
1226         }
1227
1228         ret = ath10k_hif_diag_write(ar, *ppos, buf, count);
1229         if (ret) {
1230                 ath10k_warn(ar, "failed to write address 0x%08x via diagnose window from debugfs: %d\n",
1231                             (u32)(*ppos), ret);
1232                 goto exit;
1233         }
1234
1235         *ppos += count;
1236         ret = count;
1237
1238 exit:
1239         vfree(buf);
1240         mutex_unlock(&ar->conf_mutex);
1241
1242         return ret;
1243 }
1244
1245 static const struct file_operations fops_mem_value = {
1246         .read = ath10k_mem_value_read,
1247         .write = ath10k_mem_value_write,
1248         .open = simple_open,
1249         .owner = THIS_MODULE,
1250         .llseek = default_llseek,
1251 };
1252
1253 static int ath10k_debug_htt_stats_req(struct ath10k *ar)
1254 {
1255         u64 cookie;
1256         int ret;
1257
1258         lockdep_assert_held(&ar->conf_mutex);
1259
1260         if (ar->debug.htt_stats_mask == 0)
1261                 /* htt stats are disabled */
1262                 return 0;
1263
1264         if (ar->state != ATH10K_STATE_ON)
1265                 return 0;
1266
1267         cookie = get_jiffies_64();
1268
1269         ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
1270                                        cookie);
1271         if (ret) {
1272                 ath10k_warn(ar, "failed to send htt stats request: %d\n", ret);
1273                 return ret;
1274         }
1275
1276         queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
1277                            msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
1278
1279         return 0;
1280 }
1281
1282 static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
1283 {
1284         struct ath10k *ar = container_of(work, struct ath10k,
1285                                          debug.htt_stats_dwork.work);
1286
1287         mutex_lock(&ar->conf_mutex);
1288
1289         ath10k_debug_htt_stats_req(ar);
1290
1291         mutex_unlock(&ar->conf_mutex);
1292 }
1293
1294 static ssize_t ath10k_read_htt_stats_mask(struct file *file,
1295                                           char __user *user_buf,
1296                                           size_t count, loff_t *ppos)
1297 {
1298         struct ath10k *ar = file->private_data;
1299         char buf[32];
1300         unsigned int len;
1301
1302         len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
1303
1304         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1305 }
1306
1307 static ssize_t ath10k_write_htt_stats_mask(struct file *file,
1308                                            const char __user *user_buf,
1309                                            size_t count, loff_t *ppos)
1310 {
1311         struct ath10k *ar = file->private_data;
1312         unsigned long mask;
1313         int ret;
1314
1315         ret = kstrtoul_from_user(user_buf, count, 0, &mask);
1316         if (ret)
1317                 return ret;
1318
1319         /* max 8 bit masks (for now) */
1320         if (mask > 0xff)
1321                 return -E2BIG;
1322
1323         mutex_lock(&ar->conf_mutex);
1324
1325         ar->debug.htt_stats_mask = mask;
1326
1327         ret = ath10k_debug_htt_stats_req(ar);
1328         if (ret)
1329                 goto out;
1330
1331         ret = count;
1332
1333 out:
1334         mutex_unlock(&ar->conf_mutex);
1335
1336         return ret;
1337 }
1338
1339 static const struct file_operations fops_htt_stats_mask = {
1340         .read = ath10k_read_htt_stats_mask,
1341         .write = ath10k_write_htt_stats_mask,
1342         .open = simple_open,
1343         .owner = THIS_MODULE,
1344         .llseek = default_llseek,
1345 };
1346
1347 static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
1348                                                char __user *user_buf,
1349                                                size_t count, loff_t *ppos)
1350 {
1351         struct ath10k *ar = file->private_data;
1352         char buf[64];
1353         u8 amsdu = 3, ampdu = 64;
1354         unsigned int len;
1355
1356         mutex_lock(&ar->conf_mutex);
1357
1358         if (ar->debug.htt_max_amsdu)
1359                 amsdu = ar->debug.htt_max_amsdu;
1360
1361         if (ar->debug.htt_max_ampdu)
1362                 ampdu = ar->debug.htt_max_ampdu;
1363
1364         mutex_unlock(&ar->conf_mutex);
1365
1366         len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);
1367
1368         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1369 }
1370
1371 static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
1372                                                 const char __user *user_buf,
1373                                                 size_t count, loff_t *ppos)
1374 {
1375         struct ath10k *ar = file->private_data;
1376         int res;
1377         char buf[64];
1378         unsigned int amsdu, ampdu;
1379
1380         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
1381
1382         /* make sure that buf is null terminated */
1383         buf[sizeof(buf) - 1] = 0;
1384
1385         res = sscanf(buf, "%u %u", &amsdu, &ampdu);
1386
1387         if (res != 2)
1388                 return -EINVAL;
1389
1390         mutex_lock(&ar->conf_mutex);
1391
1392         res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
1393         if (res)
1394                 goto out;
1395
1396         res = count;
1397         ar->debug.htt_max_amsdu = amsdu;
1398         ar->debug.htt_max_ampdu = ampdu;
1399
1400 out:
1401         mutex_unlock(&ar->conf_mutex);
1402         return res;
1403 }
1404
1405 static const struct file_operations fops_htt_max_amsdu_ampdu = {
1406         .read = ath10k_read_htt_max_amsdu_ampdu,
1407         .write = ath10k_write_htt_max_amsdu_ampdu,
1408         .open = simple_open,
1409         .owner = THIS_MODULE,
1410         .llseek = default_llseek,
1411 };
1412
1413 static ssize_t ath10k_read_fw_dbglog(struct file *file,
1414                                      char __user *user_buf,
1415                                      size_t count, loff_t *ppos)
1416 {
1417         struct ath10k *ar = file->private_data;
1418         unsigned int len;
1419         char buf[64];
1420
1421         len = scnprintf(buf, sizeof(buf), "0x%08x %u\n",
1422                         ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level);
1423
1424         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1425 }
1426
1427 static ssize_t ath10k_write_fw_dbglog(struct file *file,
1428                                       const char __user *user_buf,
1429                                       size_t count, loff_t *ppos)
1430 {
1431         struct ath10k *ar = file->private_data;
1432         int ret;
1433         char buf[64];
1434         unsigned int log_level, mask;
1435
1436         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
1437
1438         /* make sure that buf is null terminated */
1439         buf[sizeof(buf) - 1] = 0;
1440
1441         ret = sscanf(buf, "%x %u", &mask, &log_level);
1442
1443         if (!ret)
1444                 return -EINVAL;
1445
1446         if (ret == 1)
1447                 /* default if user did not specify */
1448                 log_level = ATH10K_DBGLOG_LEVEL_WARN;
1449
1450         mutex_lock(&ar->conf_mutex);
1451
1452         ar->debug.fw_dbglog_mask = mask;
1453         ar->debug.fw_dbglog_level = log_level;
1454
1455         if (ar->state == ATH10K_STATE_ON) {
1456                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1457                                             ar->debug.fw_dbglog_level);
1458                 if (ret) {
1459                         ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
1460                                     ret);
1461                         goto exit;
1462                 }
1463         }
1464
1465         ret = count;
1466
1467 exit:
1468         mutex_unlock(&ar->conf_mutex);
1469
1470         return ret;
1471 }
1472
1473 /* TODO:  Would be nice to always support ethtool stats, would need to
1474  * move the stats storage out of ath10k_debug, or always have ath10k_debug
1475  * struct available..
1476  */
1477
1478 /* This generally cooresponds to the debugfs fw_stats file */
1479 static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = {
1480         "tx_pkts_nic",
1481         "tx_bytes_nic",
1482         "rx_pkts_nic",
1483         "rx_bytes_nic",
1484         "d_noise_floor",
1485         "d_cycle_count",
1486         "d_phy_error",
1487         "d_rts_bad",
1488         "d_rts_good",
1489         "d_tx_power", /* in .5 dbM I think */
1490         "d_rx_crc_err", /* fcs_bad */
1491         "d_no_beacon",
1492         "d_tx_mpdus_queued",
1493         "d_tx_msdu_queued",
1494         "d_tx_msdu_dropped",
1495         "d_local_enqued",
1496         "d_local_freed",
1497         "d_tx_ppdu_hw_queued",
1498         "d_tx_ppdu_reaped",
1499         "d_tx_fifo_underrun",
1500         "d_tx_ppdu_abort",
1501         "d_tx_mpdu_requed",
1502         "d_tx_excessive_retries",
1503         "d_tx_hw_rate",
1504         "d_tx_dropped_sw_retries",
1505         "d_tx_illegal_rate",
1506         "d_tx_continuous_xretries",
1507         "d_tx_timeout",
1508         "d_tx_mpdu_txop_limit",
1509         "d_pdev_resets",
1510         "d_rx_mid_ppdu_route_change",
1511         "d_rx_status",
1512         "d_rx_extra_frags_ring0",
1513         "d_rx_extra_frags_ring1",
1514         "d_rx_extra_frags_ring2",
1515         "d_rx_extra_frags_ring3",
1516         "d_rx_msdu_htt",
1517         "d_rx_mpdu_htt",
1518         "d_rx_msdu_stack",
1519         "d_rx_mpdu_stack",
1520         "d_rx_phy_err",
1521         "d_rx_phy_err_drops",
1522         "d_rx_mpdu_errors", /* FCS, MIC, ENC */
1523         "d_fw_crash_count",
1524         "d_fw_warm_reset_count",
1525         "d_fw_cold_reset_count",
1526 };
1527
1528 #define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats)
1529
1530 void ath10k_debug_get_et_strings(struct ieee80211_hw *hw,
1531                                  struct ieee80211_vif *vif,
1532                                  u32 sset, u8 *data)
1533 {
1534         if (sset == ETH_SS_STATS)
1535                 memcpy(data, *ath10k_gstrings_stats,
1536                        sizeof(ath10k_gstrings_stats));
1537 }
1538
1539 int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw,
1540                                    struct ieee80211_vif *vif, int sset)
1541 {
1542         if (sset == ETH_SS_STATS)
1543                 return ATH10K_SSTATS_LEN;
1544
1545         return 0;
1546 }
1547
1548 void ath10k_debug_get_et_stats(struct ieee80211_hw *hw,
1549                                struct ieee80211_vif *vif,
1550                                struct ethtool_stats *stats, u64 *data)
1551 {
1552         struct ath10k *ar = hw->priv;
1553         static const struct ath10k_fw_stats_pdev zero_stats = {};
1554         const struct ath10k_fw_stats_pdev *pdev_stats;
1555         int i = 0, ret;
1556
1557         mutex_lock(&ar->conf_mutex);
1558
1559         if (ar->state == ATH10K_STATE_ON) {
1560                 ret = ath10k_debug_fw_stats_request(ar);
1561                 if (ret) {
1562                         /* just print a warning and try to use older results */
1563                         ath10k_warn(ar,
1564                                     "failed to get fw stats for ethtool: %d\n",
1565                                     ret);
1566                 }
1567         }
1568
1569         pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs,
1570                                               struct ath10k_fw_stats_pdev,
1571                                               list);
1572         if (!pdev_stats) {
1573                 /* no results available so just return zeroes */
1574                 pdev_stats = &zero_stats;
1575         }
1576
1577         spin_lock_bh(&ar->data_lock);
1578
1579         data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */
1580         data[i++] = 0; /* tx bytes */
1581         data[i++] = pdev_stats->htt_mpdus;
1582         data[i++] = 0; /* rx bytes */
1583         data[i++] = pdev_stats->ch_noise_floor;
1584         data[i++] = pdev_stats->cycle_count;
1585         data[i++] = pdev_stats->phy_err_count;
1586         data[i++] = pdev_stats->rts_bad;
1587         data[i++] = pdev_stats->rts_good;
1588         data[i++] = pdev_stats->chan_tx_power;
1589         data[i++] = pdev_stats->fcs_bad;
1590         data[i++] = pdev_stats->no_beacons;
1591         data[i++] = pdev_stats->mpdu_enqued;
1592         data[i++] = pdev_stats->msdu_enqued;
1593         data[i++] = pdev_stats->wmm_drop;
1594         data[i++] = pdev_stats->local_enqued;
1595         data[i++] = pdev_stats->local_freed;
1596         data[i++] = pdev_stats->hw_queued;
1597         data[i++] = pdev_stats->hw_reaped;
1598         data[i++] = pdev_stats->underrun;
1599         data[i++] = pdev_stats->tx_abort;
1600         data[i++] = pdev_stats->mpdus_requed;
1601         data[i++] = pdev_stats->tx_ko;
1602         data[i++] = pdev_stats->data_rc;
1603         data[i++] = pdev_stats->sw_retry_failure;
1604         data[i++] = pdev_stats->illgl_rate_phy_err;
1605         data[i++] = pdev_stats->pdev_cont_xretry;
1606         data[i++] = pdev_stats->pdev_tx_timeout;
1607         data[i++] = pdev_stats->txop_ovf;
1608         data[i++] = pdev_stats->pdev_resets;
1609         data[i++] = pdev_stats->mid_ppdu_route_change;
1610         data[i++] = pdev_stats->status_rcvd;
1611         data[i++] = pdev_stats->r0_frags;
1612         data[i++] = pdev_stats->r1_frags;
1613         data[i++] = pdev_stats->r2_frags;
1614         data[i++] = pdev_stats->r3_frags;
1615         data[i++] = pdev_stats->htt_msdus;
1616         data[i++] = pdev_stats->htt_mpdus;
1617         data[i++] = pdev_stats->loc_msdus;
1618         data[i++] = pdev_stats->loc_mpdus;
1619         data[i++] = pdev_stats->phy_errs;
1620         data[i++] = pdev_stats->phy_err_drop;
1621         data[i++] = pdev_stats->mpdu_errs;
1622         data[i++] = ar->stats.fw_crash_counter;
1623         data[i++] = ar->stats.fw_warm_reset_counter;
1624         data[i++] = ar->stats.fw_cold_reset_counter;
1625
1626         spin_unlock_bh(&ar->data_lock);
1627
1628         mutex_unlock(&ar->conf_mutex);
1629
1630         WARN_ON(i != ATH10K_SSTATS_LEN);
1631 }
1632
1633 static const struct file_operations fops_fw_dbglog = {
1634         .read = ath10k_read_fw_dbglog,
1635         .write = ath10k_write_fw_dbglog,
1636         .open = simple_open,
1637         .owner = THIS_MODULE,
1638         .llseek = default_llseek,
1639 };
1640
1641 static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file)
1642 {
1643         struct ath10k *ar = inode->i_private;
1644         void *buf;
1645         u32 hi_addr;
1646         __le32 addr;
1647         int ret;
1648
1649         mutex_lock(&ar->conf_mutex);
1650
1651         if (ar->state != ATH10K_STATE_ON &&
1652             ar->state != ATH10K_STATE_UTF) {
1653                 ret = -ENETDOWN;
1654                 goto err;
1655         }
1656
1657         buf = vmalloc(QCA988X_CAL_DATA_LEN);
1658         if (!buf) {
1659                 ret = -ENOMEM;
1660                 goto err;
1661         }
1662
1663         hi_addr = host_interest_item_address(HI_ITEM(hi_board_data));
1664
1665         ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr));
1666         if (ret) {
1667                 ath10k_warn(ar, "failed to read hi_board_data address: %d\n", ret);
1668                 goto err_vfree;
1669         }
1670
1671         ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), buf,
1672                                    QCA988X_CAL_DATA_LEN);
1673         if (ret) {
1674                 ath10k_warn(ar, "failed to read calibration data: %d\n", ret);
1675                 goto err_vfree;
1676         }
1677
1678         file->private_data = buf;
1679
1680         mutex_unlock(&ar->conf_mutex);
1681
1682         return 0;
1683
1684 err_vfree:
1685         vfree(buf);
1686
1687 err:
1688         mutex_unlock(&ar->conf_mutex);
1689
1690         return ret;
1691 }
1692
1693 static ssize_t ath10k_debug_cal_data_read(struct file *file,
1694                                           char __user *user_buf,
1695                                           size_t count, loff_t *ppos)
1696 {
1697         void *buf = file->private_data;
1698
1699         return simple_read_from_buffer(user_buf, count, ppos,
1700                                        buf, QCA988X_CAL_DATA_LEN);
1701 }
1702
1703 static int ath10k_debug_cal_data_release(struct inode *inode,
1704                                          struct file *file)
1705 {
1706         vfree(file->private_data);
1707
1708         return 0;
1709 }
1710
1711 static const struct file_operations fops_cal_data = {
1712         .open = ath10k_debug_cal_data_open,
1713         .read = ath10k_debug_cal_data_read,
1714         .release = ath10k_debug_cal_data_release,
1715         .owner = THIS_MODULE,
1716         .llseek = default_llseek,
1717 };
1718
1719 static ssize_t ath10k_read_nf_cal_period(struct file *file,
1720                                          char __user *user_buf,
1721                                          size_t count, loff_t *ppos)
1722 {
1723         struct ath10k *ar = file->private_data;
1724         unsigned int len;
1725         char buf[32];
1726
1727         len = scnprintf(buf, sizeof(buf), "%d\n",
1728                         ar->debug.nf_cal_period);
1729
1730         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1731 }
1732
1733 static ssize_t ath10k_write_nf_cal_period(struct file *file,
1734                                           const char __user *user_buf,
1735                                           size_t count, loff_t *ppos)
1736 {
1737         struct ath10k *ar = file->private_data;
1738         unsigned long period;
1739         int ret;
1740
1741         ret = kstrtoul_from_user(user_buf, count, 0, &period);
1742         if (ret)
1743                 return ret;
1744
1745         if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX)
1746                 return -EINVAL;
1747
1748         /* there's no way to switch back to the firmware default */
1749         if (period == 0)
1750                 return -EINVAL;
1751
1752         mutex_lock(&ar->conf_mutex);
1753
1754         ar->debug.nf_cal_period = period;
1755
1756         if (ar->state != ATH10K_STATE_ON) {
1757                 /* firmware is not running, nothing else to do */
1758                 ret = count;
1759                 goto exit;
1760         }
1761
1762         ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period,
1763                                         ar->debug.nf_cal_period);
1764         if (ret) {
1765                 ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n",
1766                             ret);
1767                 goto exit;
1768         }
1769
1770         ret = count;
1771
1772 exit:
1773         mutex_unlock(&ar->conf_mutex);
1774
1775         return ret;
1776 }
1777
1778 static const struct file_operations fops_nf_cal_period = {
1779         .read = ath10k_read_nf_cal_period,
1780         .write = ath10k_write_nf_cal_period,
1781         .open = simple_open,
1782         .owner = THIS_MODULE,
1783         .llseek = default_llseek,
1784 };
1785
1786 int ath10k_debug_start(struct ath10k *ar)
1787 {
1788         int ret;
1789
1790         lockdep_assert_held(&ar->conf_mutex);
1791
1792         ret = ath10k_debug_htt_stats_req(ar);
1793         if (ret)
1794                 /* continue normally anyway, this isn't serious */
1795                 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n",
1796                             ret);
1797
1798         if (ar->debug.fw_dbglog_mask) {
1799                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1800                                             ATH10K_DBGLOG_LEVEL_WARN);
1801                 if (ret)
1802                         /* not serious */
1803                         ath10k_warn(ar, "failed to enable dbglog during start: %d",
1804                                     ret);
1805         }
1806
1807         if (ar->debug.pktlog_filter) {
1808                 ret = ath10k_wmi_pdev_pktlog_enable(ar,
1809                                                     ar->debug.pktlog_filter);
1810                 if (ret)
1811                         /* not serious */
1812                         ath10k_warn(ar,
1813                                     "failed to enable pktlog filter %x: %d\n",
1814                                     ar->debug.pktlog_filter, ret);
1815         } else {
1816                 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1817                 if (ret)
1818                         /* not serious */
1819                         ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1820         }
1821
1822         if (ar->debug.nf_cal_period) {
1823                 ret = ath10k_wmi_pdev_set_param(ar,
1824                                                 ar->wmi.pdev_param->cal_period,
1825                                                 ar->debug.nf_cal_period);
1826                 if (ret)
1827                         /* not serious */
1828                         ath10k_warn(ar, "cal period cfg failed from debug start: %d\n",
1829                                     ret);
1830         }
1831
1832         return ret;
1833 }
1834
1835 void ath10k_debug_stop(struct ath10k *ar)
1836 {
1837         lockdep_assert_held(&ar->conf_mutex);
1838
1839         /* Must not use _sync to avoid deadlock, we do that in
1840          * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
1841          * warning from del_timer(). */
1842         if (ar->debug.htt_stats_mask != 0)
1843                 cancel_delayed_work(&ar->debug.htt_stats_dwork);
1844
1845         ar->debug.htt_max_amsdu = 0;
1846         ar->debug.htt_max_ampdu = 0;
1847
1848         ath10k_wmi_pdev_pktlog_disable(ar);
1849 }
1850
1851 static ssize_t ath10k_write_simulate_radar(struct file *file,
1852                                            const char __user *user_buf,
1853                                            size_t count, loff_t *ppos)
1854 {
1855         struct ath10k *ar = file->private_data;
1856
1857         ieee80211_radar_detected(ar->hw);
1858
1859         return count;
1860 }
1861
1862 static const struct file_operations fops_simulate_radar = {
1863         .write = ath10k_write_simulate_radar,
1864         .open = simple_open,
1865         .owner = THIS_MODULE,
1866         .llseek = default_llseek,
1867 };
1868
1869 #define ATH10K_DFS_STAT(s, p) (\
1870         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1871                          ar->debug.dfs_stats.p))
1872
1873 #define ATH10K_DFS_POOL_STAT(s, p) (\
1874         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1875                          ar->debug.dfs_pool_stats.p))
1876
1877 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
1878                                      size_t count, loff_t *ppos)
1879 {
1880         int retval = 0, len = 0;
1881         const int size = 8000;
1882         struct ath10k *ar = file->private_data;
1883         char *buf;
1884
1885         buf = kzalloc(size, GFP_KERNEL);
1886         if (buf == NULL)
1887                 return -ENOMEM;
1888
1889         if (!ar->dfs_detector) {
1890                 len += scnprintf(buf + len, size - len, "DFS not enabled\n");
1891                 goto exit;
1892         }
1893
1894         ar->debug.dfs_pool_stats =
1895                         ar->dfs_detector->get_stats(ar->dfs_detector);
1896
1897         len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
1898
1899         ATH10K_DFS_STAT("reported phy errors", phy_errors);
1900         ATH10K_DFS_STAT("pulse events reported", pulses_total);
1901         ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
1902         ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
1903         ATH10K_DFS_STAT("Radars detected", radar_detected);
1904
1905         len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
1906         ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
1907         ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
1908         ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
1909         ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
1910         ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
1911         ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
1912         ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
1913
1914 exit:
1915         if (len > size)
1916                 len = size;
1917
1918         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1919         kfree(buf);
1920
1921         return retval;
1922 }
1923
1924 static const struct file_operations fops_dfs_stats = {
1925         .read = ath10k_read_dfs_stats,
1926         .open = simple_open,
1927         .owner = THIS_MODULE,
1928         .llseek = default_llseek,
1929 };
1930
1931 static ssize_t ath10k_write_pktlog_filter(struct file *file,
1932                                           const char __user *ubuf,
1933                                           size_t count, loff_t *ppos)
1934 {
1935         struct ath10k *ar = file->private_data;
1936         u32 filter;
1937         int ret;
1938
1939         if (kstrtouint_from_user(ubuf, count, 0, &filter))
1940                 return -EINVAL;
1941
1942         mutex_lock(&ar->conf_mutex);
1943
1944         if (ar->state != ATH10K_STATE_ON) {
1945                 ar->debug.pktlog_filter = filter;
1946                 ret = count;
1947                 goto out;
1948         }
1949
1950         if (filter && (filter != ar->debug.pktlog_filter)) {
1951                 ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
1952                 if (ret) {
1953                         ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
1954                                     ar->debug.pktlog_filter, ret);
1955                         goto out;
1956                 }
1957         } else {
1958                 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1959                 if (ret) {
1960                         ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1961                         goto out;
1962                 }
1963         }
1964
1965         ar->debug.pktlog_filter = filter;
1966         ret = count;
1967
1968 out:
1969         mutex_unlock(&ar->conf_mutex);
1970         return ret;
1971 }
1972
1973 static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf,
1974                                          size_t count, loff_t *ppos)
1975 {
1976         char buf[32];
1977         struct ath10k *ar = file->private_data;
1978         int len = 0;
1979
1980         mutex_lock(&ar->conf_mutex);
1981         len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
1982                         ar->debug.pktlog_filter);
1983         mutex_unlock(&ar->conf_mutex);
1984
1985         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
1986 }
1987
1988 static const struct file_operations fops_pktlog_filter = {
1989         .read = ath10k_read_pktlog_filter,
1990         .write = ath10k_write_pktlog_filter,
1991         .open = simple_open
1992 };
1993
1994 int ath10k_debug_create(struct ath10k *ar)
1995 {
1996         ar->debug.fw_crash_data = vzalloc(sizeof(*ar->debug.fw_crash_data));
1997         if (!ar->debug.fw_crash_data)
1998                 return -ENOMEM;
1999
2000         INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs);
2001         INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs);
2002         INIT_LIST_HEAD(&ar->debug.fw_stats.peers);
2003
2004         return 0;
2005 }
2006
2007 void ath10k_debug_destroy(struct ath10k *ar)
2008 {
2009         vfree(ar->debug.fw_crash_data);
2010         ar->debug.fw_crash_data = NULL;
2011
2012         ath10k_debug_fw_stats_reset(ar);
2013 }
2014
2015 int ath10k_debug_register(struct ath10k *ar)
2016 {
2017         ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
2018                                                    ar->hw->wiphy->debugfsdir);
2019         if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) {
2020                 if (IS_ERR(ar->debug.debugfs_phy))
2021                         return PTR_ERR(ar->debug.debugfs_phy);
2022
2023                 return -ENOMEM;
2024         }
2025
2026         INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
2027                           ath10k_debug_htt_stats_dwork);
2028
2029         init_completion(&ar->debug.fw_stats_complete);
2030
2031         debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar,
2032                             &fops_fw_stats);
2033
2034         debugfs_create_file("fw_reset_stats", S_IRUSR, ar->debug.debugfs_phy,
2035                             ar, &fops_fw_reset_stats);
2036
2037         debugfs_create_file("wmi_services", S_IRUSR, ar->debug.debugfs_phy, ar,
2038                             &fops_wmi_services);
2039
2040         debugfs_create_file("simulate_fw_crash", S_IRUSR, ar->debug.debugfs_phy,
2041                             ar, &fops_simulate_fw_crash);
2042
2043         debugfs_create_file("fw_crash_dump", S_IRUSR, ar->debug.debugfs_phy,
2044                             ar, &fops_fw_crash_dump);
2045
2046         debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR,
2047                             ar->debug.debugfs_phy, ar, &fops_reg_addr);
2048
2049         debugfs_create_file("reg_value", S_IRUSR | S_IWUSR,
2050                             ar->debug.debugfs_phy, ar, &fops_reg_value);
2051
2052         debugfs_create_file("mem_value", S_IRUSR | S_IWUSR,
2053                             ar->debug.debugfs_phy, ar, &fops_mem_value);
2054
2055         debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy,
2056                             ar, &fops_chip_id);
2057
2058         debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy,
2059                             ar, &fops_htt_stats_mask);
2060
2061         debugfs_create_file("htt_max_amsdu_ampdu", S_IRUSR | S_IWUSR,
2062                             ar->debug.debugfs_phy, ar,
2063                             &fops_htt_max_amsdu_ampdu);
2064
2065         debugfs_create_file("fw_dbglog", S_IRUSR, ar->debug.debugfs_phy,
2066                             ar, &fops_fw_dbglog);
2067
2068         debugfs_create_file("cal_data", S_IRUSR, ar->debug.debugfs_phy,
2069                             ar, &fops_cal_data);
2070
2071         debugfs_create_file("nf_cal_period", S_IRUSR | S_IWUSR,
2072                             ar->debug.debugfs_phy, ar, &fops_nf_cal_period);
2073
2074         if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
2075                 debugfs_create_file("dfs_simulate_radar", S_IWUSR,
2076                                     ar->debug.debugfs_phy, ar,
2077                                     &fops_simulate_radar);
2078
2079                 debugfs_create_bool("dfs_block_radar_events", S_IWUSR,
2080                                     ar->debug.debugfs_phy,
2081                                     &ar->dfs_block_radar_events);
2082
2083                 debugfs_create_file("dfs_stats", S_IRUSR,
2084                                     ar->debug.debugfs_phy, ar,
2085                                     &fops_dfs_stats);
2086         }
2087
2088         debugfs_create_file("pktlog_filter", S_IRUGO | S_IWUSR,
2089                             ar->debug.debugfs_phy, ar, &fops_pktlog_filter);
2090
2091         return 0;
2092 }
2093
2094 void ath10k_debug_unregister(struct ath10k *ar)
2095 {
2096         cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
2097 }
2098
2099 #endif /* CONFIG_ATH10K_DEBUGFS */
2100
2101 #ifdef CONFIG_ATH10K_DEBUG
2102 void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
2103                 const char *fmt, ...)
2104 {
2105         struct va_format vaf;
2106         va_list args;
2107
2108         va_start(args, fmt);
2109
2110         vaf.fmt = fmt;
2111         vaf.va = &args;
2112
2113         if (ath10k_debug_mask & mask)
2114                 dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
2115
2116         trace_ath10k_log_dbg(ar, mask, &vaf);
2117
2118         va_end(args);
2119 }
2120 EXPORT_SYMBOL(ath10k_dbg);
2121
2122 void ath10k_dbg_dump(struct ath10k *ar,
2123                      enum ath10k_debug_mask mask,
2124                      const char *msg, const char *prefix,
2125                      const void *buf, size_t len)
2126 {
2127         char linebuf[256];
2128         unsigned int linebuflen;
2129         const void *ptr;
2130
2131         if (ath10k_debug_mask & mask) {
2132                 if (msg)
2133                         ath10k_dbg(ar, mask, "%s\n", msg);
2134
2135                 for (ptr = buf; (ptr - buf) < len; ptr += 16) {
2136                         linebuflen = 0;
2137                         linebuflen += scnprintf(linebuf + linebuflen,
2138                                                 sizeof(linebuf) - linebuflen,
2139                                                 "%s%08x: ",
2140                                                 (prefix ? prefix : ""),
2141                                                 (unsigned int)(ptr - buf));
2142                         hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1,
2143                                            linebuf + linebuflen,
2144                                            sizeof(linebuf) - linebuflen, true);
2145                         dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf);
2146                 }
2147         }
2148
2149         /* tracing code doesn't like null strings :/ */
2150         trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
2151                                   buf, len);
2152 }
2153 EXPORT_SYMBOL(ath10k_dbg_dump);
2154
2155 #endif /* CONFIG_ATH10K_DEBUG */