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 #include <linux/crc32.h>
  23 #include <linux/firmware.h>
  24
  25 #include "core.h"
  26 #include "debug.h"
  27 #include "hif.h"
  28 #include "wmi-ops.h"
  29
  30 /* ms */
  31 #define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000
  32
  33 #define ATH10K_DEBUG_CAL_DATA_LEN 12064
  34
  35 #define ATH10K_FW_CRASH_DUMP_VERSION 1
  36
  37 /**
  38  * enum ath10k_fw_crash_dump_type - types of data in the dump file
  39  * @ATH10K_FW_CRASH_DUMP_REGDUMP: Register crash dump in binary format
  40  */
  41 enum ath10k_fw_crash_dump_type {
  42         ATH10K_FW_CRASH_DUMP_REGISTERS = 0,
  43
  44         ATH10K_FW_CRASH_DUMP_MAX,
  45 };
  46
  47 struct ath10k_tlv_dump_data {
  48         /* see ath10k_fw_crash_dump_type above */
  49         __le32 type;
  50
  51         /* in bytes */
  52         __le32 tlv_len;
  53
  54         /* pad to 32-bit boundaries as needed */
  55         u8 tlv_data[];
  56 } __packed;
  57
  58 struct ath10k_dump_file_data {
  59         /* dump file information */
  60
  61         /* "ATH10K-FW-DUMP" */
  62         char df_magic[16];
  63
  64         __le32 len;
  65
  66         /* file dump version */
  67         __le32 version;
  68
  69         /* some info we can get from ath10k struct that might help */
  70
  71         u8 uuid[16];
  72
  73         __le32 chip_id;
  74
  75         /* 0 for now, in place for later hardware */
  76         __le32 bus_type;
  77
  78         __le32 target_version;
  79         __le32 fw_version_major;
  80         __le32 fw_version_minor;
  81         __le32 fw_version_release;
  82         __le32 fw_version_build;
  83         __le32 phy_capability;
  84         __le32 hw_min_tx_power;
  85         __le32 hw_max_tx_power;
  86         __le32 ht_cap_info;
  87         __le32 vht_cap_info;
  88         __le32 num_rf_chains;
  89
  90         /* firmware version string */
  91         char fw_ver[ETHTOOL_FWVERS_LEN];
  92
  93         /* Kernel related information */
  94
  95         /* time-of-day stamp */
  96         __le64 tv_sec;
  97
  98         /* time-of-day stamp, nano-seconds */
  99         __le64 tv_nsec;
 100
 101         /* LINUX_VERSION_CODE */
 102         __le32 kernel_ver_code;
 103
 104         /* VERMAGIC_STRING */
 105         char kernel_ver[64];
 106
 107         /* room for growth w/out changing binary format */
 108         u8 unused[128];
 109
 110         /* struct ath10k_tlv_dump_data + more */
 111         u8 data[0];
 112 } __packed;
 113
 114 void ath10k_info(struct ath10k *ar, const char *fmt, ...)
 115 {
 116         struct va_format vaf = {
 117                 .fmt = fmt,
 118         };
 119         va_list args;
 120
 121         va_start(args, fmt);
 122         vaf.va = &args;
 123         dev_info(ar->dev, "%pV", &vaf);
 124         trace_ath10k_log_info(ar, &vaf);
 125         va_end(args);
 126 }
 127 EXPORT_SYMBOL(ath10k_info);
 128
 129 void ath10k_debug_print_hwfw_info(struct ath10k *ar)
 130 {
 131         const struct firmware *firmware;
 132         char fw_features[128] = {};
 133         u32 crc = 0;
 134
 135         ath10k_core_get_fw_features_str(ar, fw_features, sizeof(fw_features));
 136
 137         ath10k_info(ar, "%s target 0x%08x chip_id 0x%08x sub %04x:%04x",
 138                     ar->hw_params.name,
 139                     ar->target_version,
 140                     ar->chip_id,
 141                     ar->id.subsystem_vendor, ar->id.subsystem_device);
 142
 143         ath10k_info(ar, "kconfig debug %d debugfs %d tracing %d dfs %d testmode %d\n",
 144                     IS_ENABLED(CONFIG_ATH10K_DEBUG),
 145                     IS_ENABLED(CONFIG_ATH10K_DEBUGFS),
 146                     IS_ENABLED(CONFIG_ATH10K_TRACING),
 147                     IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED),
 148                     IS_ENABLED(CONFIG_NL80211_TESTMODE));
 149
 150         firmware = ar->normal_mode_fw.fw_file.firmware;
 151         if (firmware)
 152                 crc = crc32_le(0, firmware->data, firmware->size);
 153
 154         ath10k_info(ar, "firmware ver %s api %d features %s crc32 %08x\n",
 155                     ar->hw->wiphy->fw_version,
 156                     ar->fw_api,
 157                     fw_features,
 158                     crc);
 159 }
 160
 161 void ath10k_debug_print_board_info(struct ath10k *ar)
 162 {
 163         char boardinfo[100];
 164
 165         if (ar->id.bmi_ids_valid)
 166                 scnprintf(boardinfo, sizeof(boardinfo), "%d:%d",
 167                           ar->id.bmi_chip_id, ar->id.bmi_board_id);
 168         else
 169                 scnprintf(boardinfo, sizeof(boardinfo), "N/A");
 170
 171         ath10k_info(ar, "board_file api %d bmi_id %s crc32 %08x",
 172                     ar->bd_api,
 173                     boardinfo,
 174                     crc32_le(0, ar->normal_mode_fw.board->data,
 175                              ar->normal_mode_fw.board->size));
 176 }
 177
 178 void ath10k_debug_print_boot_info(struct ath10k *ar)
 179 {
 180         ath10k_info(ar, "htt-ver %d.%d wmi-op %d htt-op %d cal %s max-sta %d raw %d hwcrypto %d\n",
 181                     ar->htt.target_version_major,
 182                     ar->htt.target_version_minor,
 183                     ar->normal_mode_fw.fw_file.wmi_op_version,
 184                     ar->normal_mode_fw.fw_file.htt_op_version,
 185                     ath10k_cal_mode_str(ar->cal_mode),
 186                     ar->max_num_stations,
 187                     test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags),
 188                     !test_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags));
 189 }
 190
 191 void ath10k_print_driver_info(struct ath10k *ar)
 192 {
 193         ath10k_debug_print_hwfw_info(ar);
 194         ath10k_debug_print_board_info(ar);
 195         ath10k_debug_print_boot_info(ar);
 196 }
 197 EXPORT_SYMBOL(ath10k_print_driver_info);
 198
 199 void ath10k_err(struct ath10k *ar, const char *fmt, ...)
 200 {
 201         struct va_format vaf = {
 202                 .fmt = fmt,
 203         };
 204         va_list args;
 205
 206         va_start(args, fmt);
 207         vaf.va = &args;
 208         dev_err(ar->dev, "%pV", &vaf);
 209         trace_ath10k_log_err(ar, &vaf);
 210         va_end(args);
 211 }
 212 EXPORT_SYMBOL(ath10k_err);
 213
 214 void ath10k_warn(struct ath10k *ar, const char *fmt, ...)
 215 {
 216         struct va_format vaf = {
 217                 .fmt = fmt,
 218         };
 219         va_list args;
 220
 221         va_start(args, fmt);
 222         vaf.va = &args;
 223         dev_warn_ratelimited(ar->dev, "%pV", &vaf);
 224         trace_ath10k_log_warn(ar, &vaf);
 225
 226         va_end(args);
 227 }
 228 EXPORT_SYMBOL(ath10k_warn);
 229
 230 #ifdef CONFIG_ATH10K_DEBUGFS
 231
 232 static ssize_t ath10k_read_wmi_services(struct file *file,
 233                                         char __user *user_buf,
 234                                         size_t count, loff_t *ppos)
 235 {
 236         struct ath10k *ar = file->private_data;
 237         char *buf;
 238         unsigned int len = 0, buf_len = 4096;
 239         const char *name;
 240         ssize_t ret_cnt;
 241         bool enabled;
 242         int i;
 243
 244         buf = kzalloc(buf_len, GFP_KERNEL);
 245         if (!buf)
 246                 return -ENOMEM;
 247
 248         mutex_lock(&ar->conf_mutex);
 249
 250         if (len > buf_len)
 251                 len = buf_len;
 252
 253         spin_lock_bh(&ar->data_lock);
 254         for (i = 0; i < WMI_SERVICE_MAX; i++) {
 255                 enabled = test_bit(i, ar->wmi.svc_map);
 256                 name = wmi_service_name(i);
 257
 258                 if (!name) {
 259                         if (enabled)
 260                                 len += scnprintf(buf + len, buf_len - len,
 261                                                  "%-40s %s (bit %d)\n",
 262                                                  "unknown", "enabled", i);
 263
 264                         continue;
 265                 }
 266
 267                 len += scnprintf(buf + len, buf_len - len,
 268                                  "%-40s %s\n",
 269                                  name, enabled ? "enabled" : "-");
 270         }
 271         spin_unlock_bh(&ar->data_lock);
 272
 273         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 274
 275         mutex_unlock(&ar->conf_mutex);
 276
 277         kfree(buf);
 278         return ret_cnt;
 279 }
 280
 281 static const struct file_operations fops_wmi_services = {
 282         .read = ath10k_read_wmi_services,
 283         .open = simple_open,
 284         .owner = THIS_MODULE,
 285         .llseek = default_llseek,
 286 };
 287
 288 static void ath10k_fw_stats_pdevs_free(struct list_head *head)
 289 {
 290         struct ath10k_fw_stats_pdev *i, *tmp;
 291
 292         list_for_each_entry_safe(i, tmp, head, list) {
 293                 list_del(&i->list);
 294                 kfree(i);
 295         }
 296 }
 297
 298 static void ath10k_fw_stats_vdevs_free(struct list_head *head)
 299 {
 300         struct ath10k_fw_stats_vdev *i, *tmp;
 301
 302         list_for_each_entry_safe(i, tmp, head, list) {
 303                 list_del(&i->list);
 304                 kfree(i);
 305         }
 306 }
 307
 308 static void ath10k_fw_stats_peers_free(struct list_head *head)
 309 {
 310         struct ath10k_fw_stats_peer *i, *tmp;
 311
 312         list_for_each_entry_safe(i, tmp, head, list) {
 313                 list_del(&i->list);
 314                 kfree(i);
 315         }
 316 }
 317
 318 static void ath10k_fw_extd_stats_peers_free(struct list_head *head)
 319 {
 320         struct ath10k_fw_extd_stats_peer *i, *tmp;
 321
 322         list_for_each_entry_safe(i, tmp, head, list) {
 323                 list_del(&i->list);
 324                 kfree(i);
 325         }
 326 }
 327
 328 static void ath10k_debug_fw_stats_reset(struct ath10k *ar)
 329 {
 330         spin_lock_bh(&ar->data_lock);
 331         ar->debug.fw_stats_done = false;
 332         ar->debug.fw_stats.extended = false;
 333         ath10k_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs);
 334         ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
 335         ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers);
 336         ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd);
 337         spin_unlock_bh(&ar->data_lock);
 338 }
 339
 340 void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
 341 {
 342         struct ath10k_fw_stats stats = {};
 343         bool is_start, is_started, is_end;
 344         size_t num_peers;
 345         size_t num_vdevs;
 346         int ret;
 347
 348         INIT_LIST_HEAD(&stats.pdevs);
 349         INIT_LIST_HEAD(&stats.vdevs);
 350         INIT_LIST_HEAD(&stats.peers);
 351         INIT_LIST_HEAD(&stats.peers_extd);
 352
 353         spin_lock_bh(&ar->data_lock);
 354         ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats);
 355         if (ret) {
 356                 ath10k_warn(ar, "failed to pull fw stats: %d\n", ret);
 357                 goto free;
 358         }
 359
 360         /* Stat data may exceed htc-wmi buffer limit. In such case firmware
 361          * splits the stats data and delivers it in a ping-pong fashion of
 362          * request cmd-update event.
 363          *
 364          * However there is no explicit end-of-data. Instead start-of-data is
 365          * used as an implicit one. This works as follows:
 366          *  a) discard stat update events until one with pdev stats is
 367          *     delivered - this skips session started at end of (b)
 368          *  b) consume stat update events until another one with pdev stats is
 369          *     delivered which is treated as end-of-data and is itself discarded
 370          */
 371         if (ath10k_peer_stats_enabled(ar))
 372                 ath10k_sta_update_rx_duration(ar, &stats);
 373
 374         if (ar->debug.fw_stats_done) {
 375                 if (!ath10k_peer_stats_enabled(ar))
 376                         ath10k_warn(ar, "received unsolicited stats update event\n");
 377
 378                 goto free;
 379         }
 380
 381         num_peers = ath10k_wmi_fw_stats_num_peers(&ar->debug.fw_stats.peers);
 382         num_vdevs = ath10k_wmi_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs);
 383         is_start = (list_empty(&ar->debug.fw_stats.pdevs) &&
 384                     !list_empty(&stats.pdevs));
 385         is_end = (!list_empty(&ar->debug.fw_stats.pdevs) &&
 386                   !list_empty(&stats.pdevs));
 387
 388         if (is_start)
 389                 list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs);
 390
 391         if (is_end)
 392                 ar->debug.fw_stats_done = true;
 393
 394         is_started = !list_empty(&ar->debug.fw_stats.pdevs);
 395
 396         if (is_started && !is_end) {
 397                 if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) {
 398                         /* Although this is unlikely impose a sane limit to
 399                          * prevent firmware from DoS-ing the host.
 400                          */
 401                         ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers);
 402                         ath10k_warn(ar, "dropping fw peer stats\n");
 403                         goto free;
 404                 }
 405
 406                 if (num_vdevs >= BITS_PER_LONG) {
 407                         ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
 408                         ath10k_warn(ar, "dropping fw vdev stats\n");
 409                         goto free;
 410                 }
 411
 412                 list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers);
 413                 list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs);
 414                 list_splice_tail_init(&stats.peers_extd,
 415                                       &ar->debug.fw_stats.peers_extd);
 416         }
 417
 418         complete(&ar->debug.fw_stats_complete);
 419
 420 free:
 421         /* In some cases lists have been spliced and cleared. Free up
 422          * resources if that is not the case.
 423          */
 424         ath10k_fw_stats_pdevs_free(&stats.pdevs);
 425         ath10k_fw_stats_vdevs_free(&stats.vdevs);
 426         ath10k_fw_stats_peers_free(&stats.peers);
 427         ath10k_fw_extd_stats_peers_free(&stats.peers_extd);
 428
 429         spin_unlock_bh(&ar->data_lock);
 430 }
 431
 432 static int ath10k_debug_fw_stats_request(struct ath10k *ar)
 433 {
 434         unsigned long timeout, time_left;
 435         int ret;
 436
 437         lockdep_assert_held(&ar->conf_mutex);
 438
 439         timeout = jiffies + msecs_to_jiffies(1 * HZ);
 440
 441         ath10k_debug_fw_stats_reset(ar);
 442
 443         for (;;) {
 444                 if (time_after(jiffies, timeout))
 445                         return -ETIMEDOUT;
 446
 447                 reinit_completion(&ar->debug.fw_stats_complete);
 448
 449                 ret = ath10k_wmi_request_stats(ar, ar->fw_stats_req_mask);
 450                 if (ret) {
 451                         ath10k_warn(ar, "could not request stats (%d)\n", ret);
 452                         return ret;
 453                 }
 454
 455                 time_left =
 456                 wait_for_completion_timeout(&ar->debug.fw_stats_complete,
 457                                             1 * HZ);
 458                 if (!time_left)
 459                         return -ETIMEDOUT;
 460
 461                 spin_lock_bh(&ar->data_lock);
 462                 if (ar->debug.fw_stats_done) {
 463                         spin_unlock_bh(&ar->data_lock);
 464                         break;
 465                 }
 466                 spin_unlock_bh(&ar->data_lock);
 467         }
 468
 469         return 0;
 470 }
 471
 472 static int ath10k_fw_stats_open(struct inode *inode, struct file *file)
 473 {
 474         struct ath10k *ar = inode->i_private;
 475         void *buf = NULL;
 476         int ret;
 477
 478         mutex_lock(&ar->conf_mutex);
 479
 480         if (ar->state != ATH10K_STATE_ON) {
 481                 ret = -ENETDOWN;
 482                 goto err_unlock;
 483         }
 484
 485         buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE);
 486         if (!buf) {
 487                 ret = -ENOMEM;
 488                 goto err_unlock;
 489         }
 490
 491         ret = ath10k_debug_fw_stats_request(ar);
 492         if (ret) {
 493                 ath10k_warn(ar, "failed to request fw stats: %d\n", ret);
 494                 goto err_free;
 495         }
 496
 497         ret = ath10k_wmi_fw_stats_fill(ar, &ar->debug.fw_stats, buf);
 498         if (ret) {
 499                 ath10k_warn(ar, "failed to fill fw stats: %d\n", ret);
 500                 goto err_free;
 501         }
 502
 503         file->private_data = buf;
 504
 505         mutex_unlock(&ar->conf_mutex);
 506         return 0;
 507
 508 err_free:
 509         vfree(buf);
 510
 511 err_unlock:
 512         mutex_unlock(&ar->conf_mutex);
 513         return ret;
 514 }
 515
 516 static int ath10k_fw_stats_release(struct inode *inode, struct file *file)
 517 {
 518         vfree(file->private_data);
 519
 520         return 0;
 521 }
 522
 523 static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf,
 524                                     size_t count, loff_t *ppos)
 525 {
 526         const char *buf = file->private_data;
 527         unsigned int len = strlen(buf);
 528
 529         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 530 }
 531
 532 static const struct file_operations fops_fw_stats = {
 533         .open = ath10k_fw_stats_open,
 534         .release = ath10k_fw_stats_release,
 535         .read = ath10k_fw_stats_read,
 536         .owner = THIS_MODULE,
 537         .llseek = default_llseek,
 538 };
 539
 540 static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file,
 541                                                 char __user *user_buf,
 542                                                 size_t count, loff_t *ppos)
 543 {
 544         struct ath10k *ar = file->private_data;
 545         int ret, len, buf_len;
 546         char *buf;
 547
 548         buf_len = 500;
 549         buf = kmalloc(buf_len, GFP_KERNEL);
 550         if (!buf)
 551                 return -ENOMEM;
 552
 553         spin_lock_bh(&ar->data_lock);
 554
 555         len = 0;
 556         len += scnprintf(buf + len, buf_len - len,
 557                          "fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter);
 558         len += scnprintf(buf + len, buf_len - len,
 559                          "fw_warm_reset_counter\t\t%d\n",
 560                          ar->stats.fw_warm_reset_counter);
 561         len += scnprintf(buf + len, buf_len - len,
 562                          "fw_cold_reset_counter\t\t%d\n",
 563                          ar->stats.fw_cold_reset_counter);
 564
 565         spin_unlock_bh(&ar->data_lock);
 566
 567         ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 568
 569         kfree(buf);
 570
 571         return ret;
 572 }
 573
 574 static const struct file_operations fops_fw_reset_stats = {
 575         .open = simple_open,
 576         .read = ath10k_debug_fw_reset_stats_read,
 577         .owner = THIS_MODULE,
 578         .llseek = default_llseek,
 579 };
 580
 581 /* This is a clean assert crash in firmware. */
 582 static int ath10k_debug_fw_assert(struct ath10k *ar)
 583 {
 584         struct wmi_vdev_install_key_cmd *cmd;
 585         struct sk_buff *skb;
 586
 587         skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16);
 588         if (!skb)
 589                 return -ENOMEM;
 590
 591         cmd = (struct wmi_vdev_install_key_cmd *)skb->data;
 592         memset(cmd, 0, sizeof(*cmd));
 593
 594         /* big enough number so that firmware asserts */
 595         cmd->vdev_id = __cpu_to_le32(0x7ffe);
 596
 597         return ath10k_wmi_cmd_send(ar, skb,
 598                                    ar->wmi.cmd->vdev_install_key_cmdid);
 599 }
 600
 601 static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
 602                                              char __user *user_buf,
 603                                              size_t count, loff_t *ppos)
 604 {
 605         const char buf[] =
 606                 "To simulate firmware crash write one of the keywords to this file:\n"
 607                 "`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n"
 608                 "`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n"
 609                 "`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n"
 610                 "`hw-restart` - this will simply queue hw restart without fw/hw actually crashing.\n";
 611
 612         return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 613 }
 614
 615 /* Simulate firmware crash:
 616  * 'soft': Call wmi command causing firmware hang. This firmware hang is
 617  * recoverable by warm firmware reset.
 618  * 'hard': Force firmware crash by setting any vdev parameter for not allowed
 619  * vdev id. This is hard firmware crash because it is recoverable only by cold
 620  * firmware reset.
 621  */
 622 static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
 623                                               const char __user *user_buf,
 624                                               size_t count, loff_t *ppos)
 625 {
 626         struct ath10k *ar = file->private_data;
 627         char buf[32];
 628         int ret;
 629
 630         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
 631
 632         /* make sure that buf is null terminated */
 633         buf[sizeof(buf) - 1] = 0;
 634
 635         /* drop the possible '\n' from the end */
 636         if (buf[count - 1] == '\n')
 637                 buf[count - 1] = 0;
 638
 639         mutex_lock(&ar->conf_mutex);
 640
 641         if (ar->state != ATH10K_STATE_ON &&
 642             ar->state != ATH10K_STATE_RESTARTED) {
 643                 ret = -ENETDOWN;
 644                 goto exit;
 645         }
 646
 647         if (!strcmp(buf, "soft")) {
 648                 ath10k_info(ar, "simulating soft firmware crash\n");
 649                 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
 650         } else if (!strcmp(buf, "hard")) {
 651                 ath10k_info(ar, "simulating hard firmware crash\n");
 652                 /* 0x7fff is vdev id, and it is always out of range for all
 653                  * firmware variants in order to force a firmware crash.
 654                  */
 655                 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
 656                                                 ar->wmi.vdev_param->rts_threshold,
 657                                                 0);
 658         } else if (!strcmp(buf, "assert")) {
 659                 ath10k_info(ar, "simulating firmware assert crash\n");
 660                 ret = ath10k_debug_fw_assert(ar);
 661         } else if (!strcmp(buf, "hw-restart")) {
 662                 ath10k_info(ar, "user requested hw restart\n");
 663                 queue_work(ar->workqueue, &ar->restart_work);
 664                 ret = 0;
 665         } else {
 666                 ret = -EINVAL;
 667                 goto exit;
 668         }
 669
 670         if (ret) {
 671                 ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret);
 672                 goto exit;
 673         }
 674
 675         ret = count;
 676
 677 exit:
 678         mutex_unlock(&ar->conf_mutex);
 679         return ret;
 680 }
 681
 682 static const struct file_operations fops_simulate_fw_crash = {
 683         .read = ath10k_read_simulate_fw_crash,
 684         .write = ath10k_write_simulate_fw_crash,
 685         .open = simple_open,
 686         .owner = THIS_MODULE,
 687         .llseek = default_llseek,
 688 };
 689
 690 static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
 691                                    size_t count, loff_t *ppos)
 692 {
 693         struct ath10k *ar = file->private_data;
 694         unsigned int len;
 695         char buf[50];
 696
 697         len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id);
 698
 699         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 700 }
 701
 702 static const struct file_operations fops_chip_id = {
 703         .read = ath10k_read_chip_id,
 704         .open = simple_open,
 705         .owner = THIS_MODULE,
 706         .llseek = default_llseek,
 707 };
 708
 709 struct ath10k_fw_crash_data *
 710 ath10k_debug_get_new_fw_crash_data(struct ath10k *ar)
 711 {
 712         struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
 713
 714         lockdep_assert_held(&ar->data_lock);
 715
 716         crash_data->crashed_since_read = true;
 717         uuid_le_gen(&crash_data->uuid);
 718         getnstimeofday(&crash_data->timestamp);
 719
 720         return crash_data;
 721 }
 722 EXPORT_SYMBOL(ath10k_debug_get_new_fw_crash_data);
 723
 724 static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar)
 725 {
 726         struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
 727         struct ath10k_dump_file_data *dump_data;
 728         struct ath10k_tlv_dump_data *dump_tlv;
 729         int hdr_len = sizeof(*dump_data);
 730         unsigned int len, sofar = 0;
 731         unsigned char *buf;
 732
 733         len = hdr_len;
 734         len += sizeof(*dump_tlv) + sizeof(crash_data->registers);
 735
 736         sofar += hdr_len;
 737
 738         /* This is going to get big when we start dumping FW RAM and such,
 739          * so go ahead and use vmalloc.
 740          */
 741         buf = vzalloc(len);
 742         if (!buf)
 743                 return NULL;
 744
 745         spin_lock_bh(&ar->data_lock);
 746
 747         if (!crash_data->crashed_since_read) {
 748                 spin_unlock_bh(&ar->data_lock);
 749                 vfree(buf);
 750                 return NULL;
 751         }
 752
 753         dump_data = (struct ath10k_dump_file_data *)(buf);
 754         strlcpy(dump_data->df_magic, "ATH10K-FW-DUMP",
 755                 sizeof(dump_data->df_magic));
 756         dump_data->len = cpu_to_le32(len);
 757
 758         dump_data->version = cpu_to_le32(ATH10K_FW_CRASH_DUMP_VERSION);
 759
 760         memcpy(dump_data->uuid, &crash_data->uuid, sizeof(dump_data->uuid));
 761         dump_data->chip_id = cpu_to_le32(ar->chip_id);
 762         dump_data->bus_type = cpu_to_le32(0);
 763         dump_data->target_version = cpu_to_le32(ar->target_version);
 764         dump_data->fw_version_major = cpu_to_le32(ar->fw_version_major);
 765         dump_data->fw_version_minor = cpu_to_le32(ar->fw_version_minor);
 766         dump_data->fw_version_release = cpu_to_le32(ar->fw_version_release);
 767         dump_data->fw_version_build = cpu_to_le32(ar->fw_version_build);
 768         dump_data->phy_capability = cpu_to_le32(ar->phy_capability);
 769         dump_data->hw_min_tx_power = cpu_to_le32(ar->hw_min_tx_power);
 770         dump_data->hw_max_tx_power = cpu_to_le32(ar->hw_max_tx_power);
 771         dump_data->ht_cap_info = cpu_to_le32(ar->ht_cap_info);
 772         dump_data->vht_cap_info = cpu_to_le32(ar->vht_cap_info);
 773         dump_data->num_rf_chains = cpu_to_le32(ar->num_rf_chains);
 774
 775         strlcpy(dump_data->fw_ver, ar->hw->wiphy->fw_version,
 776                 sizeof(dump_data->fw_ver));
 777
 778         dump_data->kernel_ver_code = 0;
 779         strlcpy(dump_data->kernel_ver, init_utsname()->release,
 780                 sizeof(dump_data->kernel_ver));
 781
 782         dump_data->tv_sec = cpu_to_le64(crash_data->timestamp.tv_sec);
 783         dump_data->tv_nsec = cpu_to_le64(crash_data->timestamp.tv_nsec);
 784
 785         /* Gather crash-dump */
 786         dump_tlv = (struct ath10k_tlv_dump_data *)(buf + sofar);
 787         dump_tlv->type = cpu_to_le32(ATH10K_FW_CRASH_DUMP_REGISTERS);
 788         dump_tlv->tlv_len = cpu_to_le32(sizeof(crash_data->registers));
 789         memcpy(dump_tlv->tlv_data, &crash_data->registers,
 790                sizeof(crash_data->registers));
 791         sofar += sizeof(*dump_tlv) + sizeof(crash_data->registers);
 792
 793         ar->debug.fw_crash_data->crashed_since_read = false;
 794
 795         spin_unlock_bh(&ar->data_lock);
 796
 797         return dump_data;
 798 }
 799
 800 static int ath10k_fw_crash_dump_open(struct inode *inode, struct file *file)
 801 {
 802         struct ath10k *ar = inode->i_private;
 803         struct ath10k_dump_file_data *dump;
 804
 805         dump = ath10k_build_dump_file(ar);
 806         if (!dump)
 807                 return -ENODATA;
 808
 809         file->private_data = dump;
 810
 811         return 0;
 812 }
 813
 814 static ssize_t ath10k_fw_crash_dump_read(struct file *file,
 815                                          char __user *user_buf,
 816                                          size_t count, loff_t *ppos)
 817 {
 818         struct ath10k_dump_file_data *dump_file = file->private_data;
 819
 820         return simple_read_from_buffer(user_buf, count, ppos,
 821                                        dump_file,
 822                                        le32_to_cpu(dump_file->len));
 823 }
 824
 825 static int ath10k_fw_crash_dump_release(struct inode *inode,
 826                                         struct file *file)
 827 {
 828         vfree(file->private_data);
 829
 830         return 0;
 831 }
 832
 833 static const struct file_operations fops_fw_crash_dump = {
 834         .open = ath10k_fw_crash_dump_open,
 835         .read = ath10k_fw_crash_dump_read,
 836         .release = ath10k_fw_crash_dump_release,
 837         .owner = THIS_MODULE,
 838         .llseek = default_llseek,
 839 };
 840
 841 static ssize_t ath10k_reg_addr_read(struct file *file,
 842                                     char __user *user_buf,
 843                                     size_t count, loff_t *ppos)
 844 {
 845         struct ath10k *ar = file->private_data;
 846         u8 buf[32];
 847         unsigned int len = 0;
 848         u32 reg_addr;
 849
 850         mutex_lock(&ar->conf_mutex);
 851         reg_addr = ar->debug.reg_addr;
 852         mutex_unlock(&ar->conf_mutex);
 853
 854         len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", reg_addr);
 855
 856         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 857 }
 858
 859 static ssize_t ath10k_reg_addr_write(struct file *file,
 860                                      const char __user *user_buf,
 861                                      size_t count, loff_t *ppos)
 862 {
 863         struct ath10k *ar = file->private_data;
 864         u32 reg_addr;
 865         int ret;
 866
 867         ret = kstrtou32_from_user(user_buf, count, 0, &reg_addr);
 868         if (ret)
 869                 return ret;
 870
 871         if (!IS_ALIGNED(reg_addr, 4))
 872                 return -EFAULT;
 873
 874         mutex_lock(&ar->conf_mutex);
 875         ar->debug.reg_addr = reg_addr;
 876         mutex_unlock(&ar->conf_mutex);
 877
 878         return count;
 879 }
 880
 881 static const struct file_operations fops_reg_addr = {
 882         .read = ath10k_reg_addr_read,
 883         .write = ath10k_reg_addr_write,
 884         .open = simple_open,
 885         .owner = THIS_MODULE,
 886         .llseek = default_llseek,
 887 };
 888
 889 static ssize_t ath10k_reg_value_read(struct file *file,
 890                                      char __user *user_buf,
 891                                      size_t count, loff_t *ppos)
 892 {
 893         struct ath10k *ar = file->private_data;
 894         u8 buf[48];
 895         unsigned int len;
 896         u32 reg_addr, reg_val;
 897         int ret;
 898
 899         mutex_lock(&ar->conf_mutex);
 900
 901         if (ar->state != ATH10K_STATE_ON &&
 902             ar->state != ATH10K_STATE_UTF) {
 903                 ret = -ENETDOWN;
 904                 goto exit;
 905         }
 906
 907         reg_addr = ar->debug.reg_addr;
 908
 909         reg_val = ath10k_hif_read32(ar, reg_addr);
 910         len = scnprintf(buf, sizeof(buf), "0x%08x:0x%08x\n", reg_addr, reg_val);
 911
 912         ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 913
 914 exit:
 915         mutex_unlock(&ar->conf_mutex);
 916
 917         return ret;
 918 }
 919
 920 static ssize_t ath10k_reg_value_write(struct file *file,
 921                                       const char __user *user_buf,
 922                                       size_t count, loff_t *ppos)
 923 {
 924         struct ath10k *ar = file->private_data;
 925         u32 reg_addr, reg_val;
 926         int ret;
 927
 928         mutex_lock(&ar->conf_mutex);
 929
 930         if (ar->state != ATH10K_STATE_ON &&
 931             ar->state != ATH10K_STATE_UTF) {
 932                 ret = -ENETDOWN;
 933                 goto exit;
 934         }
 935
 936         reg_addr = ar->debug.reg_addr;
 937
 938         ret = kstrtou32_from_user(user_buf, count, 0, &reg_val);
 939         if (ret)
 940                 goto exit;
 941
 942         ath10k_hif_write32(ar, reg_addr, reg_val);
 943
 944         ret = count;
 945
 946 exit:
 947         mutex_unlock(&ar->conf_mutex);
 948
 949         return ret;
 950 }
 951
 952 static const struct file_operations fops_reg_value = {
 953         .read = ath10k_reg_value_read,
 954         .write = ath10k_reg_value_write,
 955         .open = simple_open,
 956         .owner = THIS_MODULE,
 957         .llseek = default_llseek,
 958 };
 959
 960 static ssize_t ath10k_mem_value_read(struct file *file,
 961                                      char __user *user_buf,
 962                                      size_t count, loff_t *ppos)
 963 {
 964         struct ath10k *ar = file->private_data;
 965         u8 *buf;
 966         int ret;
 967
 968         if (*ppos < 0)
 969                 return -EINVAL;
 970
 971         if (!count)
 972                 return 0;
 973
 974         mutex_lock(&ar->conf_mutex);
 975
 976         buf = vmalloc(count);
 977         if (!buf) {
 978                 ret = -ENOMEM;
 979                 goto exit;
 980         }
 981
 982         if (ar->state != ATH10K_STATE_ON &&
 983             ar->state != ATH10K_STATE_UTF) {
 984                 ret = -ENETDOWN;
 985                 goto exit;
 986         }
 987
 988         ret = ath10k_hif_diag_read(ar, *ppos, buf, count);
 989         if (ret) {
 990                 ath10k_warn(ar, "failed to read address 0x%08x via diagnose window fnrom debugfs: %d\n",
 991                             (u32)(*ppos), ret);
 992                 goto exit;
 993         }
 994
 995         ret = copy_to_user(user_buf, buf, count);
 996         if (ret) {
 997                 ret = -EFAULT;
 998                 goto exit;
 999         }
1000
1001         count -= ret;
1002         *ppos += count;
1003         ret = count;
1004
1005 exit:
1006         vfree(buf);
1007         mutex_unlock(&ar->conf_mutex);
1008
1009         return ret;
1010 }
1011
1012 static ssize_t ath10k_mem_value_write(struct file *file,
1013                                       const char __user *user_buf,
1014                                       size_t count, loff_t *ppos)
1015 {
1016         struct ath10k *ar = file->private_data;
1017         u8 *buf;
1018         int ret;
1019
1020         if (*ppos < 0)
1021                 return -EINVAL;
1022
1023         if (!count)
1024                 return 0;
1025
1026         mutex_lock(&ar->conf_mutex);
1027
1028         buf = vmalloc(count);
1029         if (!buf) {
1030                 ret = -ENOMEM;
1031                 goto exit;
1032         }
1033
1034         if (ar->state != ATH10K_STATE_ON &&
1035             ar->state != ATH10K_STATE_UTF) {
1036                 ret = -ENETDOWN;
1037                 goto exit;
1038         }
1039
1040         ret = copy_from_user(buf, user_buf, count);
1041         if (ret) {
1042                 ret = -EFAULT;
1043                 goto exit;
1044         }
1045
1046         ret = ath10k_hif_diag_write(ar, *ppos, buf, count);
1047         if (ret) {
1048                 ath10k_warn(ar, "failed to write address 0x%08x via diagnose window from debugfs: %d\n",
1049                             (u32)(*ppos), ret);
1050                 goto exit;
1051         }
1052
1053         *ppos += count;
1054         ret = count;
1055
1056 exit:
1057         vfree(buf);
1058         mutex_unlock(&ar->conf_mutex);
1059
1060         return ret;
1061 }
1062
1063 static const struct file_operations fops_mem_value = {
1064         .read = ath10k_mem_value_read,
1065         .write = ath10k_mem_value_write,
1066         .open = simple_open,
1067         .owner = THIS_MODULE,
1068         .llseek = default_llseek,
1069 };
1070
1071 static int ath10k_debug_htt_stats_req(struct ath10k *ar)
1072 {
1073         u64 cookie;
1074         int ret;
1075
1076         lockdep_assert_held(&ar->conf_mutex);
1077
1078         if (ar->debug.htt_stats_mask == 0)
1079                 /* htt stats are disabled */
1080                 return 0;
1081
1082         if (ar->state != ATH10K_STATE_ON)
1083                 return 0;
1084
1085         cookie = get_jiffies_64();
1086
1087         ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
1088                                        cookie);
1089         if (ret) {
1090                 ath10k_warn(ar, "failed to send htt stats request: %d\n", ret);
1091                 return ret;
1092         }
1093
1094         queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
1095                            msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
1096
1097         return 0;
1098 }
1099
1100 static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
1101 {
1102         struct ath10k *ar = container_of(work, struct ath10k,
1103                                          debug.htt_stats_dwork.work);
1104
1105         mutex_lock(&ar->conf_mutex);
1106
1107         ath10k_debug_htt_stats_req(ar);
1108
1109         mutex_unlock(&ar->conf_mutex);
1110 }
1111
1112 static ssize_t ath10k_read_htt_stats_mask(struct file *file,
1113                                           char __user *user_buf,
1114                                           size_t count, loff_t *ppos)
1115 {
1116         struct ath10k *ar = file->private_data;
1117         char buf[32];
1118         unsigned int len;
1119
1120         len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
1121
1122         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1123 }
1124
1125 static ssize_t ath10k_write_htt_stats_mask(struct file *file,
1126                                            const char __user *user_buf,
1127                                            size_t count, loff_t *ppos)
1128 {
1129         struct ath10k *ar = file->private_data;
1130         unsigned long mask;
1131         int ret;
1132
1133         ret = kstrtoul_from_user(user_buf, count, 0, &mask);
1134         if (ret)
1135                 return ret;
1136
1137         /* max 8 bit masks (for now) */
1138         if (mask > 0xff)
1139                 return -E2BIG;
1140
1141         mutex_lock(&ar->conf_mutex);
1142
1143         ar->debug.htt_stats_mask = mask;
1144
1145         ret = ath10k_debug_htt_stats_req(ar);
1146         if (ret)
1147                 goto out;
1148
1149         ret = count;
1150
1151 out:
1152         mutex_unlock(&ar->conf_mutex);
1153
1154         return ret;
1155 }
1156
1157 static const struct file_operations fops_htt_stats_mask = {
1158         .read = ath10k_read_htt_stats_mask,
1159         .write = ath10k_write_htt_stats_mask,
1160         .open = simple_open,
1161         .owner = THIS_MODULE,
1162         .llseek = default_llseek,
1163 };
1164
1165 static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
1166                                                char __user *user_buf,
1167                                                size_t count, loff_t *ppos)
1168 {
1169         struct ath10k *ar = file->private_data;
1170         char buf[64];
1171         u8 amsdu, ampdu;
1172         unsigned int len;
1173
1174         mutex_lock(&ar->conf_mutex);
1175
1176         amsdu = ar->htt.max_num_amsdu;
1177         ampdu = ar->htt.max_num_ampdu;
1178         mutex_unlock(&ar->conf_mutex);
1179
1180         len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);
1181
1182         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1183 }
1184
1185 static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
1186                                                 const char __user *user_buf,
1187                                                 size_t count, loff_t *ppos)
1188 {
1189         struct ath10k *ar = file->private_data;
1190         int res;
1191         char buf[64];
1192         unsigned int amsdu, ampdu;
1193
1194         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
1195
1196         /* make sure that buf is null terminated */
1197         buf[sizeof(buf) - 1] = 0;
1198
1199         res = sscanf(buf, "%u %u", &amsdu, &ampdu);
1200
1201         if (res != 2)
1202                 return -EINVAL;
1203
1204         mutex_lock(&ar->conf_mutex);
1205
1206         res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
1207         if (res)
1208                 goto out;
1209
1210         res = count;
1211         ar->htt.max_num_amsdu = amsdu;
1212         ar->htt.max_num_ampdu = ampdu;
1213
1214 out:
1215         mutex_unlock(&ar->conf_mutex);
1216         return res;
1217 }
1218
1219 static const struct file_operations fops_htt_max_amsdu_ampdu = {
1220         .read = ath10k_read_htt_max_amsdu_ampdu,
1221         .write = ath10k_write_htt_max_amsdu_ampdu,
1222         .open = simple_open,
1223         .owner = THIS_MODULE,
1224         .llseek = default_llseek,
1225 };
1226
1227 static ssize_t ath10k_read_fw_dbglog(struct file *file,
1228                                      char __user *user_buf,
1229                                      size_t count, loff_t *ppos)
1230 {
1231         struct ath10k *ar = file->private_data;
1232         unsigned int len;
1233         char buf[96];
1234
1235         len = scnprintf(buf, sizeof(buf), "0x%16llx %u\n",
1236                         ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level);
1237
1238         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1239 }
1240
1241 static ssize_t ath10k_write_fw_dbglog(struct file *file,
1242                                       const char __user *user_buf,
1243                                       size_t count, loff_t *ppos)
1244 {
1245         struct ath10k *ar = file->private_data;
1246         int ret;
1247         char buf[96];
1248         unsigned int log_level;
1249         u64 mask;
1250
1251         simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
1252
1253         /* make sure that buf is null terminated */
1254         buf[sizeof(buf) - 1] = 0;
1255
1256         ret = sscanf(buf, "%llx %u", &mask, &log_level);
1257
1258         if (!ret)
1259                 return -EINVAL;
1260
1261         if (ret == 1)
1262                 /* default if user did not specify */
1263                 log_level = ATH10K_DBGLOG_LEVEL_WARN;
1264
1265         mutex_lock(&ar->conf_mutex);
1266
1267         ar->debug.fw_dbglog_mask = mask;
1268         ar->debug.fw_dbglog_level = log_level;
1269
1270         if (ar->state == ATH10K_STATE_ON) {
1271                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1272                                             ar->debug.fw_dbglog_level);
1273                 if (ret) {
1274                         ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
1275                                     ret);
1276                         goto exit;
1277                 }
1278         }
1279
1280         ret = count;
1281
1282 exit:
1283         mutex_unlock(&ar->conf_mutex);
1284
1285         return ret;
1286 }
1287
1288 /* TODO:  Would be nice to always support ethtool stats, would need to
1289  * move the stats storage out of ath10k_debug, or always have ath10k_debug
1290  * struct available..
1291  */
1292
1293 /* This generally cooresponds to the debugfs fw_stats file */
1294 static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = {
1295         "tx_pkts_nic",
1296         "tx_bytes_nic",
1297         "rx_pkts_nic",
1298         "rx_bytes_nic",
1299         "d_noise_floor",
1300         "d_cycle_count",
1301         "d_phy_error",
1302         "d_rts_bad",
1303         "d_rts_good",
1304         "d_tx_power", /* in .5 dbM I think */
1305         "d_rx_crc_err", /* fcs_bad */
1306         "d_no_beacon",
1307         "d_tx_mpdus_queued",
1308         "d_tx_msdu_queued",
1309         "d_tx_msdu_dropped",
1310         "d_local_enqued",
1311         "d_local_freed",
1312         "d_tx_ppdu_hw_queued",
1313         "d_tx_ppdu_reaped",
1314         "d_tx_fifo_underrun",
1315         "d_tx_ppdu_abort",
1316         "d_tx_mpdu_requed",
1317         "d_tx_excessive_retries",
1318         "d_tx_hw_rate",
1319         "d_tx_dropped_sw_retries",
1320         "d_tx_illegal_rate",
1321         "d_tx_continuous_xretries",
1322         "d_tx_timeout",
1323         "d_tx_mpdu_txop_limit",
1324         "d_pdev_resets",
1325         "d_rx_mid_ppdu_route_change",
1326         "d_rx_status",
1327         "d_rx_extra_frags_ring0",
1328         "d_rx_extra_frags_ring1",
1329         "d_rx_extra_frags_ring2",
1330         "d_rx_extra_frags_ring3",
1331         "d_rx_msdu_htt",
1332         "d_rx_mpdu_htt",
1333         "d_rx_msdu_stack",
1334         "d_rx_mpdu_stack",
1335         "d_rx_phy_err",
1336         "d_rx_phy_err_drops",
1337         "d_rx_mpdu_errors", /* FCS, MIC, ENC */
1338         "d_fw_crash_count",
1339         "d_fw_warm_reset_count",
1340         "d_fw_cold_reset_count",
1341 };
1342
1343 #define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats)
1344
1345 void ath10k_debug_get_et_strings(struct ieee80211_hw *hw,
1346                                  struct ieee80211_vif *vif,
1347                                  u32 sset, u8 *data)
1348 {
1349         if (sset == ETH_SS_STATS)
1350                 memcpy(data, *ath10k_gstrings_stats,
1351                        sizeof(ath10k_gstrings_stats));
1352 }
1353
1354 int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw,
1355                                    struct ieee80211_vif *vif, int sset)
1356 {
1357         if (sset == ETH_SS_STATS)
1358                 return ATH10K_SSTATS_LEN;
1359
1360         return 0;
1361 }
1362
1363 void ath10k_debug_get_et_stats(struct ieee80211_hw *hw,
1364                                struct ieee80211_vif *vif,
1365                                struct ethtool_stats *stats, u64 *data)
1366 {
1367         struct ath10k *ar = hw->priv;
1368         static const struct ath10k_fw_stats_pdev zero_stats = {};
1369         const struct ath10k_fw_stats_pdev *pdev_stats;
1370         int i = 0, ret;
1371
1372         mutex_lock(&ar->conf_mutex);
1373
1374         if (ar->state == ATH10K_STATE_ON) {
1375                 ret = ath10k_debug_fw_stats_request(ar);
1376                 if (ret) {
1377                         /* just print a warning and try to use older results */
1378                         ath10k_warn(ar,
1379                                     "failed to get fw stats for ethtool: %d\n",
1380                                     ret);
1381                 }
1382         }
1383
1384         pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs,
1385                                               struct ath10k_fw_stats_pdev,
1386                                               list);
1387         if (!pdev_stats) {
1388                 /* no results available so just return zeroes */
1389                 pdev_stats = &zero_stats;
1390         }
1391
1392         spin_lock_bh(&ar->data_lock);
1393
1394         data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */
1395         data[i++] = 0; /* tx bytes */
1396         data[i++] = pdev_stats->htt_mpdus;
1397         data[i++] = 0; /* rx bytes */
1398         data[i++] = pdev_stats->ch_noise_floor;
1399         data[i++] = pdev_stats->cycle_count;
1400         data[i++] = pdev_stats->phy_err_count;
1401         data[i++] = pdev_stats->rts_bad;
1402         data[i++] = pdev_stats->rts_good;
1403         data[i++] = pdev_stats->chan_tx_power;
1404         data[i++] = pdev_stats->fcs_bad;
1405         data[i++] = pdev_stats->no_beacons;
1406         data[i++] = pdev_stats->mpdu_enqued;
1407         data[i++] = pdev_stats->msdu_enqued;
1408         data[i++] = pdev_stats->wmm_drop;
1409         data[i++] = pdev_stats->local_enqued;
1410         data[i++] = pdev_stats->local_freed;
1411         data[i++] = pdev_stats->hw_queued;
1412         data[i++] = pdev_stats->hw_reaped;
1413         data[i++] = pdev_stats->underrun;
1414         data[i++] = pdev_stats->tx_abort;
1415         data[i++] = pdev_stats->mpdus_requed;
1416         data[i++] = pdev_stats->tx_ko;
1417         data[i++] = pdev_stats->data_rc;
1418         data[i++] = pdev_stats->sw_retry_failure;
1419         data[i++] = pdev_stats->illgl_rate_phy_err;
1420         data[i++] = pdev_stats->pdev_cont_xretry;
1421         data[i++] = pdev_stats->pdev_tx_timeout;
1422         data[i++] = pdev_stats->txop_ovf;
1423         data[i++] = pdev_stats->pdev_resets;
1424         data[i++] = pdev_stats->mid_ppdu_route_change;
1425         data[i++] = pdev_stats->status_rcvd;
1426         data[i++] = pdev_stats->r0_frags;
1427         data[i++] = pdev_stats->r1_frags;
1428         data[i++] = pdev_stats->r2_frags;
1429         data[i++] = pdev_stats->r3_frags;
1430         data[i++] = pdev_stats->htt_msdus;
1431         data[i++] = pdev_stats->htt_mpdus;
1432         data[i++] = pdev_stats->loc_msdus;
1433         data[i++] = pdev_stats->loc_mpdus;
1434         data[i++] = pdev_stats->phy_errs;
1435         data[i++] = pdev_stats->phy_err_drop;
1436         data[i++] = pdev_stats->mpdu_errs;
1437         data[i++] = ar->stats.fw_crash_counter;
1438         data[i++] = ar->stats.fw_warm_reset_counter;
1439         data[i++] = ar->stats.fw_cold_reset_counter;
1440
1441         spin_unlock_bh(&ar->data_lock);
1442
1443         mutex_unlock(&ar->conf_mutex);
1444
1445         WARN_ON(i != ATH10K_SSTATS_LEN);
1446 }
1447
1448 static const struct file_operations fops_fw_dbglog = {
1449         .read = ath10k_read_fw_dbglog,
1450         .write = ath10k_write_fw_dbglog,
1451         .open = simple_open,
1452         .owner = THIS_MODULE,
1453         .llseek = default_llseek,
1454 };
1455
1456 static int ath10k_debug_cal_data_fetch(struct ath10k *ar)
1457 {
1458         u32 hi_addr;
1459         __le32 addr;
1460         int ret;
1461
1462         lockdep_assert_held(&ar->conf_mutex);
1463
1464         if (WARN_ON(ar->hw_params.cal_data_len > ATH10K_DEBUG_CAL_DATA_LEN))
1465                 return -EINVAL;
1466
1467         hi_addr = host_interest_item_address(HI_ITEM(hi_board_data));
1468
1469         ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr));
1470         if (ret) {
1471                 ath10k_warn(ar, "failed to read hi_board_data address: %d\n",
1472                             ret);
1473                 return ret;
1474         }
1475
1476         ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), ar->debug.cal_data,
1477                                    ar->hw_params.cal_data_len);
1478         if (ret) {
1479                 ath10k_warn(ar, "failed to read calibration data: %d\n", ret);
1480                 return ret;
1481         }
1482
1483         return 0;
1484 }
1485
1486 static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file)
1487 {
1488         struct ath10k *ar = inode->i_private;
1489
1490         mutex_lock(&ar->conf_mutex);
1491
1492         if (ar->state == ATH10K_STATE_ON ||
1493             ar->state == ATH10K_STATE_UTF) {
1494                 ath10k_debug_cal_data_fetch(ar);
1495         }
1496
1497         file->private_data = ar;
1498         mutex_unlock(&ar->conf_mutex);
1499
1500         return 0;
1501 }
1502
1503 static ssize_t ath10k_debug_cal_data_read(struct file *file,
1504                                           char __user *user_buf,
1505                                           size_t count, loff_t *ppos)
1506 {
1507         struct ath10k *ar = file->private_data;
1508
1509         mutex_lock(&ar->conf_mutex);
1510
1511         count = simple_read_from_buffer(user_buf, count, ppos,
1512                                         ar->debug.cal_data,
1513                                         ar->hw_params.cal_data_len);
1514
1515         mutex_unlock(&ar->conf_mutex);
1516
1517         return count;
1518 }
1519
1520 static ssize_t ath10k_write_ani_enable(struct file *file,
1521                                        const char __user *user_buf,
1522                                        size_t count, loff_t *ppos)
1523 {
1524         struct ath10k *ar = file->private_data;
1525         int ret;
1526         u8 enable;
1527
1528         if (kstrtou8_from_user(user_buf, count, 0, &enable))
1529                 return -EINVAL;
1530
1531         mutex_lock(&ar->conf_mutex);
1532
1533         if (ar->ani_enabled == enable) {
1534                 ret = count;
1535                 goto exit;
1536         }
1537
1538         ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->ani_enable,
1539                                         enable);
1540         if (ret) {
1541                 ath10k_warn(ar, "ani_enable failed from debugfs: %d\n", ret);
1542                 goto exit;
1543         }
1544         ar->ani_enabled = enable;
1545
1546         ret = count;
1547
1548 exit:
1549         mutex_unlock(&ar->conf_mutex);
1550
1551         return ret;
1552 }
1553
1554 static ssize_t ath10k_read_ani_enable(struct file *file, char __user *user_buf,
1555                                       size_t count, loff_t *ppos)
1556 {
1557         struct ath10k *ar = file->private_data;
1558         int len = 0;
1559         char buf[32];
1560
1561         len = scnprintf(buf, sizeof(buf) - len, "%d\n",
1562                         ar->ani_enabled);
1563
1564         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1565 }
1566
1567 static const struct file_operations fops_ani_enable = {
1568         .read = ath10k_read_ani_enable,
1569         .write = ath10k_write_ani_enable,
1570         .open = simple_open,
1571         .owner = THIS_MODULE,
1572         .llseek = default_llseek,
1573 };
1574
1575 static const struct file_operations fops_cal_data = {
1576         .open = ath10k_debug_cal_data_open,
1577         .read = ath10k_debug_cal_data_read,
1578         .owner = THIS_MODULE,
1579         .llseek = default_llseek,
1580 };
1581
1582 static ssize_t ath10k_read_nf_cal_period(struct file *file,
1583                                          char __user *user_buf,
1584                                          size_t count, loff_t *ppos)
1585 {
1586         struct ath10k *ar = file->private_data;
1587         unsigned int len;
1588         char buf[32];
1589
1590         len = scnprintf(buf, sizeof(buf), "%d\n",
1591                         ar->debug.nf_cal_period);
1592
1593         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1594 }
1595
1596 static ssize_t ath10k_write_nf_cal_period(struct file *file,
1597                                           const char __user *user_buf,
1598                                           size_t count, loff_t *ppos)
1599 {
1600         struct ath10k *ar = file->private_data;
1601         unsigned long period;
1602         int ret;
1603
1604         ret = kstrtoul_from_user(user_buf, count, 0, &period);
1605         if (ret)
1606                 return ret;
1607
1608         if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX)
1609                 return -EINVAL;
1610
1611         /* there's no way to switch back to the firmware default */
1612         if (period == 0)
1613                 return -EINVAL;
1614
1615         mutex_lock(&ar->conf_mutex);
1616
1617         ar->debug.nf_cal_period = period;
1618
1619         if (ar->state != ATH10K_STATE_ON) {
1620                 /* firmware is not running, nothing else to do */
1621                 ret = count;
1622                 goto exit;
1623         }
1624
1625         ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period,
1626                                         ar->debug.nf_cal_period);
1627         if (ret) {
1628                 ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n",
1629                             ret);
1630                 goto exit;
1631         }
1632
1633         ret = count;
1634
1635 exit:
1636         mutex_unlock(&ar->conf_mutex);
1637
1638         return ret;
1639 }
1640
1641 static const struct file_operations fops_nf_cal_period = {
1642         .read = ath10k_read_nf_cal_period,
1643         .write = ath10k_write_nf_cal_period,
1644         .open = simple_open,
1645         .owner = THIS_MODULE,
1646         .llseek = default_llseek,
1647 };
1648
1649 #define ATH10K_TPC_CONFIG_BUF_SIZE      (1024 * 1024)
1650
1651 static int ath10k_debug_tpc_stats_request(struct ath10k *ar)
1652 {
1653         int ret;
1654         unsigned long time_left;
1655
1656         lockdep_assert_held(&ar->conf_mutex);
1657
1658         reinit_completion(&ar->debug.tpc_complete);
1659
1660         ret = ath10k_wmi_pdev_get_tpc_config(ar, WMI_TPC_CONFIG_PARAM);
1661         if (ret) {
1662                 ath10k_warn(ar, "failed to request tpc config: %d\n", ret);
1663                 return ret;
1664         }
1665
1666         time_left = wait_for_completion_timeout(&ar->debug.tpc_complete,
1667                                                 1 * HZ);
1668         if (time_left == 0)
1669                 return -ETIMEDOUT;
1670
1671         return 0;
1672 }
1673
1674 void ath10k_debug_tpc_stats_process(struct ath10k *ar,
1675                                     struct ath10k_tpc_stats *tpc_stats)
1676 {
1677         spin_lock_bh(&ar->data_lock);
1678
1679         kfree(ar->debug.tpc_stats);
1680         ar->debug.tpc_stats = tpc_stats;
1681         complete(&ar->debug.tpc_complete);
1682
1683         spin_unlock_bh(&ar->data_lock);
1684 }
1685
1686 static void ath10k_tpc_stats_print(struct ath10k_tpc_stats *tpc_stats,
1687                                    unsigned int j, char *buf, unsigned int *len)
1688 {
1689         unsigned int i, buf_len;
1690         static const char table_str[][5] = { "CDD",
1691                                              "STBC",
1692                                              "TXBF" };
1693         static const char pream_str[][6] = { "CCK",
1694                                              "OFDM",
1695                                              "HT20",
1696                                              "HT40",
1697                                              "VHT20",
1698                                              "VHT40",
1699                                              "VHT80",
1700                                              "HTCUP" };
1701
1702         buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
1703         *len += scnprintf(buf + *len, buf_len - *len,
1704                           "********************************\n");
1705         *len += scnprintf(buf + *len, buf_len - *len,
1706                           "******************* %s POWER TABLE ****************\n",
1707                           table_str[j]);
1708         *len += scnprintf(buf + *len, buf_len - *len,
1709                           "********************************\n");
1710         *len += scnprintf(buf + *len, buf_len - *len,
1711                           "No.  Preamble Rate_code tpc_value1 tpc_value2 tpc_value3\n");
1712
1713         for (i = 0; i < tpc_stats->rate_max; i++) {
1714                 *len += scnprintf(buf + *len, buf_len - *len,
1715                                   "%8d %s 0x%2x %s\n", i,
1716                                   pream_str[tpc_stats->tpc_table[j].pream_idx[i]],
1717                                   tpc_stats->tpc_table[j].rate_code[i],
1718                                   tpc_stats->tpc_table[j].tpc_value[i]);
1719         }
1720
1721         *len += scnprintf(buf + *len, buf_len - *len,
1722                           "***********************************\n");
1723 }
1724
1725 static void ath10k_tpc_stats_fill(struct ath10k *ar,
1726                                   struct ath10k_tpc_stats *tpc_stats,
1727                                   char *buf)
1728 {
1729         unsigned int len, j, buf_len;
1730
1731         len = 0;
1732         buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
1733
1734         spin_lock_bh(&ar->data_lock);
1735
1736         if (!tpc_stats) {
1737                 ath10k_warn(ar, "failed to get tpc stats\n");
1738                 goto unlock;
1739         }
1740
1741         len += scnprintf(buf + len, buf_len - len, "\n");
1742         len += scnprintf(buf + len, buf_len - len,
1743                          "*************************************\n");
1744         len += scnprintf(buf + len, buf_len - len,
1745                          "TPC config for channel %4d mode %d\n",
1746                          tpc_stats->chan_freq,
1747                          tpc_stats->phy_mode);
1748         len += scnprintf(buf + len, buf_len - len,
1749                          "*************************************\n");
1750         len += scnprintf(buf + len, buf_len - len,
1751                          "CTL           =  0x%2x Reg. Domain            = %2d\n",
1752                          tpc_stats->ctl,
1753                          tpc_stats->reg_domain);
1754         len += scnprintf(buf + len, buf_len - len,
1755                          "Antenna Gain  = %2d Reg. Max Antenna Gain     =  %2d\n",
1756                          tpc_stats->twice_antenna_gain,
1757                          tpc_stats->twice_antenna_reduction);
1758         len += scnprintf(buf + len, buf_len - len,
1759                          "Power Limit   = %2d Reg. Max Power            = %2d\n",
1760                          tpc_stats->power_limit,
1761                          tpc_stats->twice_max_rd_power / 2);
1762         len += scnprintf(buf + len, buf_len - len,
1763                          "Num tx chains = %2d Num supported rates       = %2d\n",
1764                          tpc_stats->num_tx_chain,
1765                          tpc_stats->rate_max);
1766
1767         for (j = 0; j < tpc_stats->num_tx_chain ; j++) {
1768                 switch (j) {
1769                 case WMI_TPC_TABLE_TYPE_CDD:
1770                         if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1771                                 len += scnprintf(buf + len, buf_len - len,
1772                                                  "CDD not supported\n");
1773                                 break;
1774                         }
1775
1776                         ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1777                         break;
1778                 case WMI_TPC_TABLE_TYPE_STBC:
1779                         if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1780                                 len += scnprintf(buf + len, buf_len - len,
1781                                                  "STBC not supported\n");
1782                                 break;
1783                         }
1784
1785                         ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1786                         break;
1787                 case WMI_TPC_TABLE_TYPE_TXBF:
1788                         if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1789                                 len += scnprintf(buf + len, buf_len - len,
1790                                                  "TXBF not supported\n***************************\n");
1791                                 break;
1792                         }
1793
1794                         ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1795                         break;
1796                 default:
1797                         len += scnprintf(buf + len, buf_len - len,
1798                                          "Invalid Type\n");
1799                         break;
1800                 }
1801         }
1802
1803 unlock:
1804         spin_unlock_bh(&ar->data_lock);
1805
1806         if (len >= buf_len)
1807                 buf[len - 1] = 0;
1808         else
1809                 buf[len] = 0;
1810 }
1811
1812 static int ath10k_tpc_stats_open(struct inode *inode, struct file *file)
1813 {
1814         struct ath10k *ar = inode->i_private;
1815         void *buf = NULL;
1816         int ret;
1817
1818         mutex_lock(&ar->conf_mutex);
1819
1820         if (ar->state != ATH10K_STATE_ON) {
1821                 ret = -ENETDOWN;
1822                 goto err_unlock;
1823         }
1824
1825         buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
1826         if (!buf) {
1827                 ret = -ENOMEM;
1828                 goto err_unlock;
1829         }
1830
1831         ret = ath10k_debug_tpc_stats_request(ar);
1832         if (ret) {
1833                 ath10k_warn(ar, "failed to request tpc config stats: %d\n",
1834                             ret);
1835                 goto err_free;
1836         }
1837
1838         ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
1839         file->private_data = buf;
1840
1841         mutex_unlock(&ar->conf_mutex);
1842         return 0;
1843
1844 err_free:
1845         vfree(buf);
1846
1847 err_unlock:
1848         mutex_unlock(&ar->conf_mutex);
1849         return ret;
1850 }
1851
1852 static int ath10k_tpc_stats_release(struct inode *inode, struct file *file)
1853 {
1854         vfree(file->private_data);
1855
1856         return 0;
1857 }
1858
1859 static ssize_t ath10k_tpc_stats_read(struct file *file, char __user *user_buf,
1860                                      size_t count, loff_t *ppos)
1861 {
1862         const char *buf = file->private_data;
1863         unsigned int len = strlen(buf);
1864
1865         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1866 }
1867
1868 static const struct file_operations fops_tpc_stats = {
1869         .open = ath10k_tpc_stats_open,
1870         .release = ath10k_tpc_stats_release,
1871         .read = ath10k_tpc_stats_read,
1872         .owner = THIS_MODULE,
1873         .llseek = default_llseek,
1874 };
1875
1876 int ath10k_debug_start(struct ath10k *ar)
1877 {
1878         int ret;
1879
1880         lockdep_assert_held(&ar->conf_mutex);
1881
1882         ret = ath10k_debug_htt_stats_req(ar);
1883         if (ret)
1884                 /* continue normally anyway, this isn't serious */
1885                 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n",
1886                             ret);
1887
1888         if (ar->debug.fw_dbglog_mask) {
1889                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1890                                             ATH10K_DBGLOG_LEVEL_WARN);
1891                 if (ret)
1892                         /* not serious */
1893                         ath10k_warn(ar, "failed to enable dbglog during start: %d",
1894                                     ret);
1895         }
1896
1897         if (ar->debug.pktlog_filter) {
1898                 ret = ath10k_wmi_pdev_pktlog_enable(ar,
1899                                                     ar->debug.pktlog_filter);
1900                 if (ret)
1901                         /* not serious */
1902                         ath10k_warn(ar,
1903                                     "failed to enable pktlog filter %x: %d\n",
1904                                     ar->debug.pktlog_filter, ret);
1905         } else {
1906                 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1907                 if (ret)
1908                         /* not serious */
1909                         ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1910         }
1911
1912         if (ar->debug.nf_cal_period) {
1913                 ret = ath10k_wmi_pdev_set_param(ar,
1914                                                 ar->wmi.pdev_param->cal_period,
1915                                                 ar->debug.nf_cal_period);
1916                 if (ret)
1917                         /* not serious */
1918                         ath10k_warn(ar, "cal period cfg failed from debug start: %d\n",
1919                                     ret);
1920         }
1921
1922         return ret;
1923 }
1924
1925 void ath10k_debug_stop(struct ath10k *ar)
1926 {
1927         lockdep_assert_held(&ar->conf_mutex);
1928
1929         ath10k_debug_cal_data_fetch(ar);
1930
1931         /* Must not use _sync to avoid deadlock, we do that in
1932          * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
1933          * warning from del_timer(). */
1934         if (ar->debug.htt_stats_mask != 0)
1935                 cancel_delayed_work(&ar->debug.htt_stats_dwork);
1936
1937         ath10k_wmi_pdev_pktlog_disable(ar);
1938 }
1939
1940 static ssize_t ath10k_write_simulate_radar(struct file *file,
1941                                            const char __user *user_buf,
1942                                            size_t count, loff_t *ppos)
1943 {
1944         struct ath10k *ar = file->private_data;
1945
1946         ieee80211_radar_detected(ar->hw);
1947
1948         return count;
1949 }
1950
1951 static const struct file_operations fops_simulate_radar = {
1952         .write = ath10k_write_simulate_radar,
1953         .open = simple_open,
1954         .owner = THIS_MODULE,
1955         .llseek = default_llseek,
1956 };
1957
1958 #define ATH10K_DFS_STAT(s, p) (\
1959         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1960                          ar->debug.dfs_stats.p))
1961
1962 #define ATH10K_DFS_POOL_STAT(s, p) (\
1963         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1964                          ar->debug.dfs_pool_stats.p))
1965
1966 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
1967                                      size_t count, loff_t *ppos)
1968 {
1969         int retval = 0, len = 0;
1970         const int size = 8000;
1971         struct ath10k *ar = file->private_data;
1972         char *buf;
1973
1974         buf = kzalloc(size, GFP_KERNEL);
1975         if (buf == NULL)
1976                 return -ENOMEM;
1977
1978         if (!ar->dfs_detector) {
1979                 len += scnprintf(buf + len, size - len, "DFS not enabled\n");
1980                 goto exit;
1981         }
1982
1983         ar->debug.dfs_pool_stats =
1984                         ar->dfs_detector->get_stats(ar->dfs_detector);
1985
1986         len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
1987
1988         ATH10K_DFS_STAT("reported phy errors", phy_errors);
1989         ATH10K_DFS_STAT("pulse events reported", pulses_total);
1990         ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
1991         ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
1992         ATH10K_DFS_STAT("Radars detected", radar_detected);
1993
1994         len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
1995         ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
1996         ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
1997         ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
1998         ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
1999         ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
2000         ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
2001         ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
2002
2003 exit:
2004         if (len > size)
2005                 len = size;
2006
2007         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
2008         kfree(buf);
2009
2010         return retval;
2011 }
2012
2013 static const struct file_operations fops_dfs_stats = {
2014         .read = ath10k_read_dfs_stats,
2015         .open = simple_open,
2016         .owner = THIS_MODULE,
2017         .llseek = default_llseek,
2018 };
2019
2020 static ssize_t ath10k_write_pktlog_filter(struct file *file,
2021                                           const char __user *ubuf,
2022                                           size_t count, loff_t *ppos)
2023 {
2024         struct ath10k *ar = file->private_data;
2025         u32 filter;
2026         int ret;
2027
2028         if (kstrtouint_from_user(ubuf, count, 0, &filter))
2029                 return -EINVAL;
2030
2031         mutex_lock(&ar->conf_mutex);
2032
2033         if (ar->state != ATH10K_STATE_ON) {
2034                 ar->debug.pktlog_filter = filter;
2035                 ret = count;
2036                 goto out;
2037         }
2038
2039         if (filter == ar->debug.pktlog_filter) {
2040                 ret = count;
2041                 goto out;
2042         }
2043
2044         if (filter) {
2045                 ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
2046                 if (ret) {
2047                         ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
2048                                     ar->debug.pktlog_filter, ret);
2049                         goto out;
2050                 }
2051         } else {
2052                 ret = ath10k_wmi_pdev_pktlog_disable(ar);
2053                 if (ret) {
2054                         ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
2055                         goto out;
2056                 }
2057         }
2058
2059         ar->debug.pktlog_filter = filter;
2060         ret = count;
2061
2062 out:
2063         mutex_unlock(&ar->conf_mutex);
2064         return ret;
2065 }
2066
2067 static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf,
2068                                          size_t count, loff_t *ppos)
2069 {
2070         char buf[32];
2071         struct ath10k *ar = file->private_data;
2072         int len = 0;
2073
2074         mutex_lock(&ar->conf_mutex);
2075         len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
2076                         ar->debug.pktlog_filter);
2077         mutex_unlock(&ar->conf_mutex);
2078
2079         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2080 }
2081
2082 static const struct file_operations fops_pktlog_filter = {
2083         .read = ath10k_read_pktlog_filter,
2084         .write = ath10k_write_pktlog_filter,
2085         .open = simple_open
2086 };
2087
2088 static ssize_t ath10k_write_quiet_period(struct file *file,
2089                                          const char __user *ubuf,
2090                                          size_t count, loff_t *ppos)
2091 {
2092         struct ath10k *ar = file->private_data;
2093         u32 period;
2094
2095         if (kstrtouint_from_user(ubuf, count, 0, &period))
2096                 return -EINVAL;
2097
2098         if (period < ATH10K_QUIET_PERIOD_MIN) {
2099                 ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n",
2100                             period);
2101                 return -EINVAL;
2102         }
2103         mutex_lock(&ar->conf_mutex);
2104         ar->thermal.quiet_period = period;
2105         ath10k_thermal_set_throttling(ar);
2106         mutex_unlock(&ar->conf_mutex);
2107
2108         return count;
2109 }
2110
2111 static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf,
2112                                         size_t count, loff_t *ppos)
2113 {
2114         char buf[32];
2115         struct ath10k *ar = file->private_data;
2116         int len = 0;
2117
2118         mutex_lock(&ar->conf_mutex);
2119         len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2120                         ar->thermal.quiet_period);
2121         mutex_unlock(&ar->conf_mutex);
2122
2123         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2124 }
2125
2126 static const struct file_operations fops_quiet_period = {
2127         .read = ath10k_read_quiet_period,
2128         .write = ath10k_write_quiet_period,
2129         .open = simple_open
2130 };
2131
2132 static ssize_t ath10k_write_btcoex(struct file *file,
2133                                    const char __user *ubuf,
2134                                    size_t count, loff_t *ppos)
2135 {
2136         struct ath10k *ar = file->private_data;
2137         char buf[32];
2138         size_t buf_size;
2139         int ret;
2140         bool val;
2141         u32 pdev_param;
2142
2143         buf_size = min(count, (sizeof(buf) - 1));
2144         if (copy_from_user(buf, ubuf, buf_size))
2145                 return -EFAULT;
2146
2147         buf[buf_size] = '\0';
2148
2149         if (strtobool(buf, &val) != 0)
2150                 return -EINVAL;
2151
2152         mutex_lock(&ar->conf_mutex);
2153
2154         if (ar->state != ATH10K_STATE_ON &&
2155             ar->state != ATH10K_STATE_RESTARTED) {
2156                 ret = -ENETDOWN;
2157                 goto exit;
2158         }
2159
2160         if (!(test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags) ^ val)) {
2161                 ret = count;
2162                 goto exit;
2163         }
2164
2165         pdev_param = ar->wmi.pdev_param->enable_btcoex;
2166         if (test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
2167                      ar->running_fw->fw_file.fw_features)) {
2168                 ret = ath10k_wmi_pdev_set_param(ar, pdev_param, val);
2169                 if (ret) {
2170                         ath10k_warn(ar, "failed to enable btcoex: %d\n", ret);
2171                         ret = count;
2172                         goto exit;
2173                 }
2174         } else {
2175                 ath10k_info(ar, "restarting firmware due to btcoex change");
2176                 queue_work(ar->workqueue, &ar->restart_work);
2177         }
2178
2179         if (val)
2180                 set_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
2181         else
2182                 clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
2183
2184         ret = count;
2185
2186 exit:
2187         mutex_unlock(&ar->conf_mutex);
2188
2189         return ret;
2190 }
2191
2192 static ssize_t ath10k_read_btcoex(struct file *file, char __user *ubuf,
2193                                   size_t count, loff_t *ppos)
2194 {
2195         char buf[32];
2196         struct ath10k *ar = file->private_data;
2197         int len = 0;
2198
2199         mutex_lock(&ar->conf_mutex);
2200         len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2201                         test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags));
2202         mutex_unlock(&ar->conf_mutex);
2203
2204         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2205 }
2206
2207 static const struct file_operations fops_btcoex = {
2208         .read = ath10k_read_btcoex,
2209         .write = ath10k_write_btcoex,
2210         .open = simple_open
2211 };
2212
2213 static ssize_t ath10k_write_peer_stats(struct file *file,
2214                                        const char __user *ubuf,
2215                                        size_t count, loff_t *ppos)
2216 {
2217         struct ath10k *ar = file->private_data;
2218         char buf[32];
2219         size_t buf_size;
2220         int ret;
2221         bool val;
2222
2223         buf_size = min(count, (sizeof(buf) - 1));
2224         if (copy_from_user(buf, ubuf, buf_size))
2225                 return -EFAULT;
2226
2227         buf[buf_size] = '\0';
2228
2229         if (strtobool(buf, &val) != 0)
2230                 return -EINVAL;
2231
2232         mutex_lock(&ar->conf_mutex);
2233
2234         if (ar->state != ATH10K_STATE_ON &&
2235             ar->state != ATH10K_STATE_RESTARTED) {
2236                 ret = -ENETDOWN;
2237                 goto exit;
2238         }
2239
2240         if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val)) {
2241                 ret = count;
2242                 goto exit;
2243         }
2244
2245         if (val)
2246                 set_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
2247         else
2248                 clear_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
2249
2250         ath10k_info(ar, "restarting firmware due to Peer stats change");
2251
2252         queue_work(ar->workqueue, &ar->restart_work);
2253         ret = count;
2254
2255 exit:
2256         mutex_unlock(&ar->conf_mutex);
2257         return ret;
2258 }
2259
2260 static ssize_t ath10k_read_peer_stats(struct file *file, char __user *ubuf,
2261                                       size_t count, loff_t *ppos)
2262
2263 {
2264         char buf[32];
2265         struct ath10k *ar = file->private_data;
2266         int len = 0;
2267
2268         mutex_lock(&ar->conf_mutex);
2269         len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2270                         test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags));
2271         mutex_unlock(&ar->conf_mutex);
2272
2273         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2274 }
2275
2276 static const struct file_operations fops_peer_stats = {
2277         .read = ath10k_read_peer_stats,
2278         .write = ath10k_write_peer_stats,
2279         .open = simple_open
2280 };
2281
2282 static ssize_t ath10k_debug_fw_checksums_read(struct file *file,
2283                                               char __user *user_buf,
2284                                               size_t count, loff_t *ppos)
2285 {
2286         struct ath10k *ar = file->private_data;
2287         unsigned int len = 0, buf_len = 4096;
2288         ssize_t ret_cnt;
2289         char *buf;
2290
2291         buf = kzalloc(buf_len, GFP_KERNEL);
2292         if (!buf)
2293                 return -ENOMEM;
2294
2295         mutex_lock(&ar->conf_mutex);
2296
2297         len += scnprintf(buf + len, buf_len - len,
2298                          "firmware-N.bin\t\t%08x\n",
2299                          crc32_le(0, ar->normal_mode_fw.fw_file.firmware->data,
2300                                   ar->normal_mode_fw.fw_file.firmware->size));
2301         len += scnprintf(buf + len, buf_len - len,
2302                          "athwlan\t\t\t%08x\n",
2303                          crc32_le(0, ar->normal_mode_fw.fw_file.firmware_data,
2304                                   ar->normal_mode_fw.fw_file.firmware_len));
2305         len += scnprintf(buf + len, buf_len - len,
2306                          "otp\t\t\t%08x\n",
2307                          crc32_le(0, ar->normal_mode_fw.fw_file.otp_data,
2308                                   ar->normal_mode_fw.fw_file.otp_len));
2309         len += scnprintf(buf + len, buf_len - len,
2310                          "codeswap\t\t%08x\n",
2311                          crc32_le(0, ar->normal_mode_fw.fw_file.codeswap_data,
2312                                   ar->normal_mode_fw.fw_file.codeswap_len));
2313         len += scnprintf(buf + len, buf_len - len,
2314                          "board-N.bin\t\t%08x\n",
2315                          crc32_le(0, ar->normal_mode_fw.board->data,
2316                                   ar->normal_mode_fw.board->size));
2317         len += scnprintf(buf + len, buf_len - len,
2318                          "board\t\t\t%08x\n",
2319                          crc32_le(0, ar->normal_mode_fw.board_data,
2320                                   ar->normal_mode_fw.board_len));
2321
2322         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
2323
2324         mutex_unlock(&ar->conf_mutex);
2325
2326         kfree(buf);
2327         return ret_cnt;
2328 }
2329
2330 static const struct file_operations fops_fw_checksums = {
2331         .read = ath10k_debug_fw_checksums_read,
2332         .open = simple_open,
2333         .owner = THIS_MODULE,
2334         .llseek = default_llseek,
2335 };
2336
2337 int ath10k_debug_create(struct ath10k *ar)
2338 {
2339         ar->debug.fw_crash_data = vzalloc(sizeof(*ar->debug.fw_crash_data));
2340         if (!ar->debug.fw_crash_data)
2341                 return -ENOMEM;
2342
2343         ar->debug.cal_data = vzalloc(ATH10K_DEBUG_CAL_DATA_LEN);
2344         if (!ar->debug.cal_data)
2345                 return -ENOMEM;
2346
2347         INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs);
2348         INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs);
2349         INIT_LIST_HEAD(&ar->debug.fw_stats.peers);
2350         INIT_LIST_HEAD(&ar->debug.fw_stats.peers_extd);
2351
2352         return 0;
2353 }
2354
2355 void ath10k_debug_destroy(struct ath10k *ar)
2356 {
2357         vfree(ar->debug.fw_crash_data);
2358         ar->debug.fw_crash_data = NULL;
2359
2360         vfree(ar->debug.cal_data);
2361         ar->debug.cal_data = NULL;
2362
2363         ath10k_debug_fw_stats_reset(ar);
2364
2365         kfree(ar->debug.tpc_stats);
2366 }
2367
2368 int ath10k_debug_register(struct ath10k *ar)
2369 {
2370         ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
2371                                                    ar->hw->wiphy->debugfsdir);
2372         if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) {
2373                 if (IS_ERR(ar->debug.debugfs_phy))
2374                         return PTR_ERR(ar->debug.debugfs_phy);
2375
2376                 return -ENOMEM;
2377         }
2378
2379         INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
2380                           ath10k_debug_htt_stats_dwork);
2381
2382         init_completion(&ar->debug.tpc_complete);
2383         init_completion(&ar->debug.fw_stats_complete);
2384
2385         debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar,
2386                             &fops_fw_stats);
2387
2388         debugfs_create_file("fw_reset_stats", S_IRUSR, ar->debug.debugfs_phy,
2389                             ar, &fops_fw_reset_stats);
2390
2391         debugfs_create_file("wmi_services", S_IRUSR, ar->debug.debugfs_phy, ar,
2392                             &fops_wmi_services);
2393
2394         debugfs_create_file("simulate_fw_crash", S_IRUSR | S_IWUSR,
2395                             ar->debug.debugfs_phy, ar, &fops_simulate_fw_crash);
2396
2397         debugfs_create_file("fw_crash_dump", S_IRUSR, ar->debug.debugfs_phy,
2398                             ar, &fops_fw_crash_dump);
2399
2400         debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR,
2401                             ar->debug.debugfs_phy, ar, &fops_reg_addr);
2402
2403         debugfs_create_file("reg_value", S_IRUSR | S_IWUSR,
2404                             ar->debug.debugfs_phy, ar, &fops_reg_value);
2405
2406         debugfs_create_file("mem_value", S_IRUSR | S_IWUSR,
2407                             ar->debug.debugfs_phy, ar, &fops_mem_value);
2408
2409         debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy,
2410                             ar, &fops_chip_id);
2411
2412         debugfs_create_file("htt_stats_mask", S_IRUSR | S_IWUSR,
2413                             ar->debug.debugfs_phy, ar, &fops_htt_stats_mask);
2414
2415         debugfs_create_file("htt_max_amsdu_ampdu", S_IRUSR | S_IWUSR,
2416                             ar->debug.debugfs_phy, ar,
2417                             &fops_htt_max_amsdu_ampdu);
2418
2419         debugfs_create_file("fw_dbglog", S_IRUSR | S_IWUSR,
2420                             ar->debug.debugfs_phy, ar, &fops_fw_dbglog);
2421
2422         debugfs_create_file("cal_data", S_IRUSR, ar->debug.debugfs_phy,
2423                             ar, &fops_cal_data);
2424
2425         debugfs_create_file("ani_enable", S_IRUSR | S_IWUSR,
2426                             ar->debug.debugfs_phy, ar, &fops_ani_enable);
2427
2428         debugfs_create_file("nf_cal_period", S_IRUSR | S_IWUSR,
2429                             ar->debug.debugfs_phy, ar, &fops_nf_cal_period);
2430
2431         if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED)) {
2432                 debugfs_create_file("dfs_simulate_radar", S_IWUSR,
2433                                     ar->debug.debugfs_phy, ar,
2434                                     &fops_simulate_radar);
2435
2436                 debugfs_create_bool("dfs_block_radar_events", S_IWUSR,
2437                                     ar->debug.debugfs_phy,
2438                                     &ar->dfs_block_radar_events);
2439
2440                 debugfs_create_file("dfs_stats", S_IRUSR,
2441                                     ar->debug.debugfs_phy, ar,
2442                                     &fops_dfs_stats);
2443         }
2444
2445         debugfs_create_file("pktlog_filter", S_IRUGO | S_IWUSR,
2446                             ar->debug.debugfs_phy, ar, &fops_pktlog_filter);
2447
2448         debugfs_create_file("quiet_period", S_IRUGO | S_IWUSR,
2449                             ar->debug.debugfs_phy, ar, &fops_quiet_period);
2450
2451         debugfs_create_file("tpc_stats", S_IRUSR,
2452                             ar->debug.debugfs_phy, ar, &fops_tpc_stats);
2453
2454         if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map))
2455                 debugfs_create_file("btcoex", S_IRUGO | S_IWUSR,
2456                                     ar->debug.debugfs_phy, ar, &fops_btcoex);
2457
2458         if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map))
2459                 debugfs_create_file("peer_stats", S_IRUGO | S_IWUSR,
2460                                     ar->debug.debugfs_phy, ar,
2461                                     &fops_peer_stats);
2462
2463         debugfs_create_file("fw_checksums", S_IRUSR,
2464                             ar->debug.debugfs_phy, ar, &fops_fw_checksums);
2465
2466         return 0;
2467 }
2468
2469 void ath10k_debug_unregister(struct ath10k *ar)
2470 {
2471         cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
2472 }
2473
2474 #endif /* CONFIG_ATH10K_DEBUGFS */
2475
2476 #ifdef CONFIG_ATH10K_DEBUG
2477 void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
2478                 const char *fmt, ...)
2479 {
2480         struct va_format vaf;
2481         va_list args;
2482
2483         va_start(args, fmt);
2484
2485         vaf.fmt = fmt;
2486         vaf.va = &args;
2487
2488         if (ath10k_debug_mask & mask)
2489                 dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
2490
2491         trace_ath10k_log_dbg(ar, mask, &vaf);
2492
2493         va_end(args);
2494 }
2495 EXPORT_SYMBOL(ath10k_dbg);
2496
2497 void ath10k_dbg_dump(struct ath10k *ar,
2498                      enum ath10k_debug_mask mask,
2499                      const char *msg, const char *prefix,
2500                      const void *buf, size_t len)
2501 {
2502         char linebuf[256];
2503         unsigned int linebuflen;
2504         const void *ptr;
2505
2506         if (ath10k_debug_mask & mask) {
2507                 if (msg)
2508                         ath10k_dbg(ar, mask, "%s\n", msg);
2509
2510                 for (ptr = buf; (ptr - buf) < len; ptr += 16) {
2511                         linebuflen = 0;
2512                         linebuflen += scnprintf(linebuf + linebuflen,
2513                                                 sizeof(linebuf) - linebuflen,
2514                                                 "%s%08x: ",
2515                                                 (prefix ? prefix : ""),
2516                                                 (unsigned int)(ptr - buf));
2517                         hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1,
2518                                            linebuf + linebuflen,
2519                                            sizeof(linebuf) - linebuflen, true);
2520                         dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf);
2521                 }
2522         }
2523
2524         /* tracing code doesn't like null strings :/ */
2525         trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
2526                                   buf, len);
2527 }
2528 EXPORT_SYMBOL(ath10k_dbg_dump);
2529
2530 #endif /* CONFIG_ATH10K_DEBUG */