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

   1 /*
   2  * Copyright (c) 2005-2011 Atheros Communications Inc.
   3  * Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
   4  * Copyright (c) 2018, The Linux Foundation. All rights reserved.
   5  *
   6  * Permission to use, copy, modify, and/or distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #include <linux/module.h>
  20 #include <linux/debugfs.h>
  21 #include <linux/vmalloc.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 void ath10k_info(struct ath10k *ar, const char *fmt, ...)
  36 {
  37         struct va_format vaf = {
  38                 .fmt = fmt,
  39         };
  40         va_list args;
  41
  42         va_start(args, fmt);
  43         vaf.va = &args;
  44         dev_info(ar->dev, "%pV", &vaf);
  45         trace_ath10k_log_info(ar, &vaf);
  46         va_end(args);
  47 }
  48 EXPORT_SYMBOL(ath10k_info);
  49
  50 void ath10k_debug_print_hwfw_info(struct ath10k *ar)
  51 {
  52         const struct firmware *firmware;
  53         char fw_features[128] = {};
  54         u32 crc = 0;
  55
  56         ath10k_core_get_fw_features_str(ar, fw_features, sizeof(fw_features));
  57
  58         ath10k_info(ar, "%s target 0x%08x chip_id 0x%08x sub %04x:%04x",
  59                     ar->hw_params.name,
  60                     ar->target_version,
  61                     ar->chip_id,
  62                     ar->id.subsystem_vendor, ar->id.subsystem_device);
  63
  64         ath10k_info(ar, "kconfig debug %d debugfs %d tracing %d dfs %d testmode %d\n",
  65                     IS_ENABLED(CONFIG_ATH10K_DEBUG),
  66                     IS_ENABLED(CONFIG_ATH10K_DEBUGFS),
  67                     IS_ENABLED(CONFIG_ATH10K_TRACING),
  68                     IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED),
  69                     IS_ENABLED(CONFIG_NL80211_TESTMODE));
  70
  71         firmware = ar->normal_mode_fw.fw_file.firmware;
  72         if (firmware)
  73                 crc = crc32_le(0, firmware->data, firmware->size);
  74
  75         ath10k_info(ar, "firmware ver %s api %d features %s crc32 %08x\n",
  76                     ar->hw->wiphy->fw_version,
  77                     ar->fw_api,
  78                     fw_features,
  79                     crc);
  80 }
  81
  82 void ath10k_debug_print_board_info(struct ath10k *ar)
  83 {
  84         char boardinfo[100];
  85         const struct firmware *board;
  86         u32 crc;
  87
  88         if (ar->id.bmi_ids_valid)
  89                 scnprintf(boardinfo, sizeof(boardinfo), "%d:%d",
  90                           ar->id.bmi_chip_id, ar->id.bmi_board_id);
  91         else
  92                 scnprintf(boardinfo, sizeof(boardinfo), "N/A");
  93
  94         board = ar->normal_mode_fw.board;
  95         if (!IS_ERR_OR_NULL(board))
  96                 crc = crc32_le(0, board->data, board->size);
  97         else
  98                 crc = 0;
  99
 100         ath10k_info(ar, "board_file api %d bmi_id %s crc32 %08x",
 101                     ar->bd_api,
 102                     boardinfo,
 103                     crc);
 104 }
 105
 106 void ath10k_debug_print_boot_info(struct ath10k *ar)
 107 {
 108         ath10k_info(ar, "htt-ver %d.%d wmi-op %d htt-op %d cal %s max-sta %d raw %d hwcrypto %d\n",
 109                     ar->htt.target_version_major,
 110                     ar->htt.target_version_minor,
 111                     ar->normal_mode_fw.fw_file.wmi_op_version,
 112                     ar->normal_mode_fw.fw_file.htt_op_version,
 113                     ath10k_cal_mode_str(ar->cal_mode),
 114                     ar->max_num_stations,
 115                     test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags),
 116                     !test_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags));
 117 }
 118
 119 void ath10k_print_driver_info(struct ath10k *ar)
 120 {
 121         ath10k_debug_print_hwfw_info(ar);
 122         ath10k_debug_print_board_info(ar);
 123         ath10k_debug_print_boot_info(ar);
 124 }
 125 EXPORT_SYMBOL(ath10k_print_driver_info);
 126
 127 void ath10k_err(struct ath10k *ar, const char *fmt, ...)
 128 {
 129         struct va_format vaf = {
 130                 .fmt = fmt,
 131         };
 132         va_list args;
 133
 134         va_start(args, fmt);
 135         vaf.va = &args;
 136         dev_err(ar->dev, "%pV", &vaf);
 137         trace_ath10k_log_err(ar, &vaf);
 138         va_end(args);
 139 }
 140 EXPORT_SYMBOL(ath10k_err);
 141
 142 void ath10k_warn(struct ath10k *ar, const char *fmt, ...)
 143 {
 144         struct va_format vaf = {
 145                 .fmt = fmt,
 146         };
 147         va_list args;
 148
 149         va_start(args, fmt);
 150         vaf.va = &args;
 151         dev_warn_ratelimited(ar->dev, "%pV", &vaf);
 152         trace_ath10k_log_warn(ar, &vaf);
 153
 154         va_end(args);
 155 }
 156 EXPORT_SYMBOL(ath10k_warn);
 157
 158 #ifdef CONFIG_ATH10K_DEBUGFS
 159
 160 static ssize_t ath10k_read_wmi_services(struct file *file,
 161                                         char __user *user_buf,
 162                                         size_t count, loff_t *ppos)
 163 {
 164         struct ath10k *ar = file->private_data;
 165         char *buf;
 166         size_t len = 0, buf_len = 8192;
 167         const char *name;
 168         ssize_t ret_cnt;
 169         bool enabled;
 170         int i;
 171
 172         buf = kzalloc(buf_len, GFP_KERNEL);
 173         if (!buf)
 174                 return -ENOMEM;
 175
 176         mutex_lock(&ar->conf_mutex);
 177
 178         spin_lock_bh(&ar->data_lock);
 179         for (i = 0; i < WMI_SERVICE_MAX; i++) {
 180                 enabled = test_bit(i, ar->wmi.svc_map);
 181                 name = wmi_service_name(i);
 182
 183                 if (!name) {
 184                         if (enabled)
 185                                 len += scnprintf(buf + len, buf_len - len,
 186                                                  "%-40s %s (bit %d)\n",
 187                                                  "unknown", "enabled", i);
 188
 189                         continue;
 190                 }
 191
 192                 len += scnprintf(buf + len, buf_len - len,
 193                                  "%-40s %s\n",
 194                                  name, enabled ? "enabled" : "-");
 195         }
 196         spin_unlock_bh(&ar->data_lock);
 197
 198         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 199
 200         mutex_unlock(&ar->conf_mutex);
 201
 202         kfree(buf);
 203         return ret_cnt;
 204 }
 205
 206 static const struct file_operations fops_wmi_services = {
 207         .read = ath10k_read_wmi_services,
 208         .open = simple_open,
 209         .owner = THIS_MODULE,
 210         .llseek = default_llseek,
 211 };
 212
 213 static void ath10k_fw_stats_pdevs_free(struct list_head *head)
 214 {
 215         struct ath10k_fw_stats_pdev *i, *tmp;
 216
 217         list_for_each_entry_safe(i, tmp, head, list) {
 218                 list_del(&i->list);
 219                 kfree(i);
 220         }
 221 }
 222
 223 static void ath10k_fw_stats_vdevs_free(struct list_head *head)
 224 {
 225         struct ath10k_fw_stats_vdev *i, *tmp;
 226
 227         list_for_each_entry_safe(i, tmp, head, list) {
 228                 list_del(&i->list);
 229                 kfree(i);
 230         }
 231 }
 232
 233 static void ath10k_fw_stats_peers_free(struct list_head *head)
 234 {
 235         struct ath10k_fw_stats_peer *i, *tmp;
 236
 237         list_for_each_entry_safe(i, tmp, head, list) {
 238                 list_del(&i->list);
 239                 kfree(i);
 240         }
 241 }
 242
 243 static void ath10k_fw_extd_stats_peers_free(struct list_head *head)
 244 {
 245         struct ath10k_fw_extd_stats_peer *i, *tmp;
 246
 247         list_for_each_entry_safe(i, tmp, head, list) {
 248                 list_del(&i->list);
 249                 kfree(i);
 250         }
 251 }
 252
 253 static void ath10k_debug_fw_stats_reset(struct ath10k *ar)
 254 {
 255         spin_lock_bh(&ar->data_lock);
 256         ar->debug.fw_stats_done = false;
 257         ar->debug.fw_stats.extended = false;
 258         ath10k_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs);
 259         ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
 260         ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers);
 261         ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd);
 262         spin_unlock_bh(&ar->data_lock);
 263 }
 264
 265 void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
 266 {
 267         struct ath10k_fw_stats stats = {};
 268         bool is_start, is_started, is_end;
 269         size_t num_peers;
 270         size_t num_vdevs;
 271         int ret;
 272
 273         INIT_LIST_HEAD(&stats.pdevs);
 274         INIT_LIST_HEAD(&stats.vdevs);
 275         INIT_LIST_HEAD(&stats.peers);
 276         INIT_LIST_HEAD(&stats.peers_extd);
 277
 278         spin_lock_bh(&ar->data_lock);
 279         ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats);
 280         if (ret) {
 281                 ath10k_warn(ar, "failed to pull fw stats: %d\n", ret);
 282                 goto free;
 283         }
 284
 285         /* Stat data may exceed htc-wmi buffer limit. In such case firmware
 286          * splits the stats data and delivers it in a ping-pong fashion of
 287          * request cmd-update event.
 288          *
 289          * However there is no explicit end-of-data. Instead start-of-data is
 290          * used as an implicit one. This works as follows:
 291          *  a) discard stat update events until one with pdev stats is
 292          *     delivered - this skips session started at end of (b)
 293          *  b) consume stat update events until another one with pdev stats is
 294          *     delivered which is treated as end-of-data and is itself discarded
 295          */
 296         if (ath10k_peer_stats_enabled(ar))
 297                 ath10k_sta_update_rx_duration(ar, &stats);
 298
 299         if (ar->debug.fw_stats_done) {
 300                 if (!ath10k_peer_stats_enabled(ar))
 301                         ath10k_warn(ar, "received unsolicited stats update event\n");
 302
 303                 goto free;
 304         }
 305
 306         num_peers = ath10k_wmi_fw_stats_num_peers(&ar->debug.fw_stats.peers);
 307         num_vdevs = ath10k_wmi_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs);
 308         is_start = (list_empty(&ar->debug.fw_stats.pdevs) &&
 309                     !list_empty(&stats.pdevs));
 310         is_end = (!list_empty(&ar->debug.fw_stats.pdevs) &&
 311                   !list_empty(&stats.pdevs));
 312
 313         if (is_start)
 314                 list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs);
 315
 316         if (is_end)
 317                 ar->debug.fw_stats_done = true;
 318
 319         is_started = !list_empty(&ar->debug.fw_stats.pdevs);
 320
 321         if (is_started && !is_end) {
 322                 if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) {
 323                         /* Although this is unlikely impose a sane limit to
 324                          * prevent firmware from DoS-ing the host.
 325                          */
 326                         ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers);
 327                         ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd);
 328                         ath10k_warn(ar, "dropping fw peer stats\n");
 329                         goto free;
 330                 }
 331
 332                 if (num_vdevs >= BITS_PER_LONG) {
 333                         ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
 334                         ath10k_warn(ar, "dropping fw vdev stats\n");
 335                         goto free;
 336                 }
 337
 338                 if (!list_empty(&stats.peers))
 339                         list_splice_tail_init(&stats.peers_extd,
 340                                               &ar->debug.fw_stats.peers_extd);
 341
 342                 list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers);
 343                 list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs);
 344         }
 345
 346         complete(&ar->debug.fw_stats_complete);
 347
 348 free:
 349         /* In some cases lists have been spliced and cleared. Free up
 350          * resources if that is not the case.
 351          */
 352         ath10k_fw_stats_pdevs_free(&stats.pdevs);
 353         ath10k_fw_stats_vdevs_free(&stats.vdevs);
 354         ath10k_fw_stats_peers_free(&stats.peers);
 355         ath10k_fw_extd_stats_peers_free(&stats.peers_extd);
 356
 357         spin_unlock_bh(&ar->data_lock);
 358 }
 359
 360 static int ath10k_debug_fw_stats_request(struct ath10k *ar)
 361 {
 362         unsigned long timeout, time_left;
 363         int ret;
 364
 365         lockdep_assert_held(&ar->conf_mutex);
 366
 367         timeout = jiffies + msecs_to_jiffies(1 * HZ);
 368
 369         ath10k_debug_fw_stats_reset(ar);
 370
 371         for (;;) {
 372                 if (time_after(jiffies, timeout))
 373                         return -ETIMEDOUT;
 374
 375                 reinit_completion(&ar->debug.fw_stats_complete);
 376
 377                 ret = ath10k_wmi_request_stats(ar, ar->fw_stats_req_mask);
 378                 if (ret) {
 379                         ath10k_warn(ar, "could not request stats (%d)\n", ret);
 380                         return ret;
 381                 }
 382
 383                 time_left =
 384                 wait_for_completion_timeout(&ar->debug.fw_stats_complete,
 385                                             1 * HZ);
 386                 if (!time_left)
 387                         return -ETIMEDOUT;
 388
 389                 spin_lock_bh(&ar->data_lock);
 390                 if (ar->debug.fw_stats_done) {
 391                         spin_unlock_bh(&ar->data_lock);
 392                         break;
 393                 }
 394                 spin_unlock_bh(&ar->data_lock);
 395         }
 396
 397         return 0;
 398 }
 399
 400 static int ath10k_fw_stats_open(struct inode *inode, struct file *file)
 401 {
 402         struct ath10k *ar = inode->i_private;
 403         void *buf = NULL;
 404         int ret;
 405
 406         mutex_lock(&ar->conf_mutex);
 407
 408         if (ar->state != ATH10K_STATE_ON) {
 409                 ret = -ENETDOWN;
 410                 goto err_unlock;
 411         }
 412
 413         buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE);
 414         if (!buf) {
 415                 ret = -ENOMEM;
 416                 goto err_unlock;
 417         }
 418
 419         ret = ath10k_debug_fw_stats_request(ar);
 420         if (ret) {
 421                 ath10k_warn(ar, "failed to request fw stats: %d\n", ret);
 422                 goto err_free;
 423         }
 424
 425         ret = ath10k_wmi_fw_stats_fill(ar, &ar->debug.fw_stats, buf);
 426         if (ret) {
 427                 ath10k_warn(ar, "failed to fill fw stats: %d\n", ret);
 428                 goto err_free;
 429         }
 430
 431         file->private_data = buf;
 432
 433         mutex_unlock(&ar->conf_mutex);
 434         return 0;
 435
 436 err_free:
 437         vfree(buf);
 438
 439 err_unlock:
 440         mutex_unlock(&ar->conf_mutex);
 441         return ret;
 442 }
 443
 444 static int ath10k_fw_stats_release(struct inode *inode, struct file *file)
 445 {
 446         vfree(file->private_data);
 447
 448         return 0;
 449 }
 450
 451 static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf,
 452                                     size_t count, loff_t *ppos)
 453 {
 454         const char *buf = file->private_data;
 455         size_t len = strlen(buf);
 456
 457         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 458 }
 459
 460 static const struct file_operations fops_fw_stats = {
 461         .open = ath10k_fw_stats_open,
 462         .release = ath10k_fw_stats_release,
 463         .read = ath10k_fw_stats_read,
 464         .owner = THIS_MODULE,
 465         .llseek = default_llseek,
 466 };
 467
 468 static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file,
 469                                                 char __user *user_buf,
 470                                                 size_t count, loff_t *ppos)
 471 {
 472         struct ath10k *ar = file->private_data;
 473         int ret;
 474         size_t len = 0, buf_len = 500;
 475         char *buf;
 476
 477         buf = kmalloc(buf_len, GFP_KERNEL);
 478         if (!buf)
 479                 return -ENOMEM;
 480
 481         spin_lock_bh(&ar->data_lock);
 482
 483         len += scnprintf(buf + len, buf_len - len,
 484                          "fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter);
 485         len += scnprintf(buf + len, buf_len - len,
 486                          "fw_warm_reset_counter\t\t%d\n",
 487                          ar->stats.fw_warm_reset_counter);
 488         len += scnprintf(buf + len, buf_len - len,
 489                          "fw_cold_reset_counter\t\t%d\n",
 490                          ar->stats.fw_cold_reset_counter);
 491
 492         spin_unlock_bh(&ar->data_lock);
 493
 494         ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 495
 496         kfree(buf);
 497
 498         return ret;
 499 }
 500
 501 static const struct file_operations fops_fw_reset_stats = {
 502         .open = simple_open,
 503         .read = ath10k_debug_fw_reset_stats_read,
 504         .owner = THIS_MODULE,
 505         .llseek = default_llseek,
 506 };
 507
 508 /* This is a clean assert crash in firmware. */
 509 static int ath10k_debug_fw_assert(struct ath10k *ar)
 510 {
 511         struct wmi_vdev_install_key_cmd *cmd;
 512         struct sk_buff *skb;
 513
 514         skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16);
 515         if (!skb)
 516                 return -ENOMEM;
 517
 518         cmd = (struct wmi_vdev_install_key_cmd *)skb->data;
 519         memset(cmd, 0, sizeof(*cmd));
 520
 521         /* big enough number so that firmware asserts */
 522         cmd->vdev_id = __cpu_to_le32(0x7ffe);
 523
 524         return ath10k_wmi_cmd_send(ar, skb,
 525                                    ar->wmi.cmd->vdev_install_key_cmdid);
 526 }
 527
 528 static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
 529                                              char __user *user_buf,
 530                                              size_t count, loff_t *ppos)
 531 {
 532         const char buf[] =
 533                 "To simulate firmware crash write one of the keywords to this file:\n"
 534                 "`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n"
 535                 "`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n"
 536                 "`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n"
 537                 "`hw-restart` - this will simply queue hw restart without fw/hw actually crashing.\n";
 538
 539         return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 540 }
 541
 542 /* Simulate firmware crash:
 543  * 'soft': Call wmi command causing firmware hang. This firmware hang is
 544  * recoverable by warm firmware reset.
 545  * 'hard': Force firmware crash by setting any vdev parameter for not allowed
 546  * vdev id. This is hard firmware crash because it is recoverable only by cold
 547  * firmware reset.
 548  */
 549 static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
 550                                               const char __user *user_buf,
 551                                               size_t count, loff_t *ppos)
 552 {
 553         struct ath10k *ar = file->private_data;
 554         char buf[32] = {0};
 555         ssize_t rc;
 556         int ret;
 557
 558         /* filter partial writes and invalid commands */
 559         if (*ppos != 0 || count >= sizeof(buf) || count == 0)
 560                 return -EINVAL;
 561
 562         rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
 563         if (rc < 0)
 564                 return rc;
 565
 566         /* drop the possible '\n' from the end */
 567         if (buf[*ppos - 1] == '\n')
 568                 buf[*ppos - 1] = '\0';
 569
 570         mutex_lock(&ar->conf_mutex);
 571
 572         if (ar->state != ATH10K_STATE_ON &&
 573             ar->state != ATH10K_STATE_RESTARTED) {
 574                 ret = -ENETDOWN;
 575                 goto exit;
 576         }
 577
 578         if (!strcmp(buf, "soft")) {
 579                 ath10k_info(ar, "simulating soft firmware crash\n");
 580                 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
 581         } else if (!strcmp(buf, "hard")) {
 582                 ath10k_info(ar, "simulating hard firmware crash\n");
 583                 /* 0x7fff is vdev id, and it is always out of range for all
 584                  * firmware variants in order to force a firmware crash.
 585                  */
 586                 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
 587                                                 ar->wmi.vdev_param->rts_threshold,
 588                                                 0);
 589         } else if (!strcmp(buf, "assert")) {
 590                 ath10k_info(ar, "simulating firmware assert crash\n");
 591                 ret = ath10k_debug_fw_assert(ar);
 592         } else if (!strcmp(buf, "hw-restart")) {
 593                 ath10k_info(ar, "user requested hw restart\n");
 594                 queue_work(ar->workqueue, &ar->restart_work);
 595                 ret = 0;
 596         } else {
 597                 ret = -EINVAL;
 598                 goto exit;
 599         }
 600
 601         if (ret) {
 602                 ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret);
 603                 goto exit;
 604         }
 605
 606         ret = count;
 607
 608 exit:
 609         mutex_unlock(&ar->conf_mutex);
 610         return ret;
 611 }
 612
 613 static const struct file_operations fops_simulate_fw_crash = {
 614         .read = ath10k_read_simulate_fw_crash,
 615         .write = ath10k_write_simulate_fw_crash,
 616         .open = simple_open,
 617         .owner = THIS_MODULE,
 618         .llseek = default_llseek,
 619 };
 620
 621 static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
 622                                    size_t count, loff_t *ppos)
 623 {
 624         struct ath10k *ar = file->private_data;
 625         size_t len;
 626         char buf[50];
 627
 628         len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id);
 629
 630         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 631 }
 632
 633 static const struct file_operations fops_chip_id = {
 634         .read = ath10k_read_chip_id,
 635         .open = simple_open,
 636         .owner = THIS_MODULE,
 637         .llseek = default_llseek,
 638 };
 639
 640 static ssize_t ath10k_reg_addr_read(struct file *file,
 641                                     char __user *user_buf,
 642                                     size_t count, loff_t *ppos)
 643 {
 644         struct ath10k *ar = file->private_data;
 645         u8 buf[32];
 646         size_t len = 0;
 647         u32 reg_addr;
 648
 649         mutex_lock(&ar->conf_mutex);
 650         reg_addr = ar->debug.reg_addr;
 651         mutex_unlock(&ar->conf_mutex);
 652
 653         len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", reg_addr);
 654
 655         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 656 }
 657
 658 static ssize_t ath10k_reg_addr_write(struct file *file,
 659                                      const char __user *user_buf,
 660                                      size_t count, loff_t *ppos)
 661 {
 662         struct ath10k *ar = file->private_data;
 663         u32 reg_addr;
 664         int ret;
 665
 666         ret = kstrtou32_from_user(user_buf, count, 0, &reg_addr);
 667         if (ret)
 668                 return ret;
 669
 670         if (!IS_ALIGNED(reg_addr, 4))
 671                 return -EFAULT;
 672
 673         mutex_lock(&ar->conf_mutex);
 674         ar->debug.reg_addr = reg_addr;
 675         mutex_unlock(&ar->conf_mutex);
 676
 677         return count;
 678 }
 679
 680 static const struct file_operations fops_reg_addr = {
 681         .read = ath10k_reg_addr_read,
 682         .write = ath10k_reg_addr_write,
 683         .open = simple_open,
 684         .owner = THIS_MODULE,
 685         .llseek = default_llseek,
 686 };
 687
 688 static ssize_t ath10k_reg_value_read(struct file *file,
 689                                      char __user *user_buf,
 690                                      size_t count, loff_t *ppos)
 691 {
 692         struct ath10k *ar = file->private_data;
 693         u8 buf[48];
 694         size_t len;
 695         u32 reg_addr, reg_val;
 696         int ret;
 697
 698         mutex_lock(&ar->conf_mutex);
 699
 700         if (ar->state != ATH10K_STATE_ON &&
 701             ar->state != ATH10K_STATE_UTF) {
 702                 ret = -ENETDOWN;
 703                 goto exit;
 704         }
 705
 706         reg_addr = ar->debug.reg_addr;
 707
 708         reg_val = ath10k_hif_read32(ar, reg_addr);
 709         len = scnprintf(buf, sizeof(buf), "0x%08x:0x%08x\n", reg_addr, reg_val);
 710
 711         ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 712
 713 exit:
 714         mutex_unlock(&ar->conf_mutex);
 715
 716         return ret;
 717 }
 718
 719 static ssize_t ath10k_reg_value_write(struct file *file,
 720                                       const char __user *user_buf,
 721                                       size_t count, loff_t *ppos)
 722 {
 723         struct ath10k *ar = file->private_data;
 724         u32 reg_addr, reg_val;
 725         int ret;
 726
 727         mutex_lock(&ar->conf_mutex);
 728
 729         if (ar->state != ATH10K_STATE_ON &&
 730             ar->state != ATH10K_STATE_UTF) {
 731                 ret = -ENETDOWN;
 732                 goto exit;
 733         }
 734
 735         reg_addr = ar->debug.reg_addr;
 736
 737         ret = kstrtou32_from_user(user_buf, count, 0, &reg_val);
 738         if (ret)
 739                 goto exit;
 740
 741         ath10k_hif_write32(ar, reg_addr, reg_val);
 742
 743         ret = count;
 744
 745 exit:
 746         mutex_unlock(&ar->conf_mutex);
 747
 748         return ret;
 749 }
 750
 751 static const struct file_operations fops_reg_value = {
 752         .read = ath10k_reg_value_read,
 753         .write = ath10k_reg_value_write,
 754         .open = simple_open,
 755         .owner = THIS_MODULE,
 756         .llseek = default_llseek,
 757 };
 758
 759 static ssize_t ath10k_mem_value_read(struct file *file,
 760                                      char __user *user_buf,
 761                                      size_t count, loff_t *ppos)
 762 {
 763         struct ath10k *ar = file->private_data;
 764         u8 *buf;
 765         int ret;
 766
 767         if (*ppos < 0)
 768                 return -EINVAL;
 769
 770         if (!count)
 771                 return 0;
 772
 773         mutex_lock(&ar->conf_mutex);
 774
 775         buf = vmalloc(count);
 776         if (!buf) {
 777                 ret = -ENOMEM;
 778                 goto exit;
 779         }
 780
 781         if (ar->state != ATH10K_STATE_ON &&
 782             ar->state != ATH10K_STATE_UTF) {
 783                 ret = -ENETDOWN;
 784                 goto exit;
 785         }
 786
 787         ret = ath10k_hif_diag_read(ar, *ppos, buf, count);
 788         if (ret) {
 789                 ath10k_warn(ar, "failed to read address 0x%08x via diagnose window fnrom debugfs: %d\n",
 790                             (u32)(*ppos), ret);
 791                 goto exit;
 792         }
 793
 794         ret = copy_to_user(user_buf, buf, count);
 795         if (ret) {
 796                 ret = -EFAULT;
 797                 goto exit;
 798         }
 799
 800         count -= ret;
 801         *ppos += count;
 802         ret = count;
 803
 804 exit:
 805         vfree(buf);
 806         mutex_unlock(&ar->conf_mutex);
 807
 808         return ret;
 809 }
 810
 811 static ssize_t ath10k_mem_value_write(struct file *file,
 812                                       const char __user *user_buf,
 813                                       size_t count, loff_t *ppos)
 814 {
 815         struct ath10k *ar = file->private_data;
 816         u8 *buf;
 817         int ret;
 818
 819         if (*ppos < 0)
 820                 return -EINVAL;
 821
 822         if (!count)
 823                 return 0;
 824
 825         mutex_lock(&ar->conf_mutex);
 826
 827         buf = vmalloc(count);
 828         if (!buf) {
 829                 ret = -ENOMEM;
 830                 goto exit;
 831         }
 832
 833         if (ar->state != ATH10K_STATE_ON &&
 834             ar->state != ATH10K_STATE_UTF) {
 835                 ret = -ENETDOWN;
 836                 goto exit;
 837         }
 838
 839         ret = copy_from_user(buf, user_buf, count);
 840         if (ret) {
 841                 ret = -EFAULT;
 842                 goto exit;
 843         }
 844
 845         ret = ath10k_hif_diag_write(ar, *ppos, buf, count);
 846         if (ret) {
 847                 ath10k_warn(ar, "failed to write address 0x%08x via diagnose window from debugfs: %d\n",
 848                             (u32)(*ppos), ret);
 849                 goto exit;
 850         }
 851
 852         *ppos += count;
 853         ret = count;
 854
 855 exit:
 856         vfree(buf);
 857         mutex_unlock(&ar->conf_mutex);
 858
 859         return ret;
 860 }
 861
 862 static const struct file_operations fops_mem_value = {
 863         .read = ath10k_mem_value_read,
 864         .write = ath10k_mem_value_write,
 865         .open = simple_open,
 866         .owner = THIS_MODULE,
 867         .llseek = default_llseek,
 868 };
 869
 870 static int ath10k_debug_htt_stats_req(struct ath10k *ar)
 871 {
 872         u64 cookie;
 873         int ret;
 874
 875         lockdep_assert_held(&ar->conf_mutex);
 876
 877         if (ar->debug.htt_stats_mask == 0)
 878                 /* htt stats are disabled */
 879                 return 0;
 880
 881         if (ar->state != ATH10K_STATE_ON)
 882                 return 0;
 883
 884         cookie = get_jiffies_64();
 885
 886         ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
 887                                        cookie);
 888         if (ret) {
 889                 ath10k_warn(ar, "failed to send htt stats request: %d\n", ret);
 890                 return ret;
 891         }
 892
 893         queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
 894                            msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
 895
 896         return 0;
 897 }
 898
 899 static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
 900 {
 901         struct ath10k *ar = container_of(work, struct ath10k,
 902                                          debug.htt_stats_dwork.work);
 903
 904         mutex_lock(&ar->conf_mutex);
 905
 906         ath10k_debug_htt_stats_req(ar);
 907
 908         mutex_unlock(&ar->conf_mutex);
 909 }
 910
 911 static ssize_t ath10k_read_htt_stats_mask(struct file *file,
 912                                           char __user *user_buf,
 913                                           size_t count, loff_t *ppos)
 914 {
 915         struct ath10k *ar = file->private_data;
 916         char buf[32];
 917         size_t len;
 918
 919         len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
 920
 921         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 922 }
 923
 924 static ssize_t ath10k_write_htt_stats_mask(struct file *file,
 925                                            const char __user *user_buf,
 926                                            size_t count, loff_t *ppos)
 927 {
 928         struct ath10k *ar = file->private_data;
 929         unsigned long mask;
 930         int ret;
 931
 932         ret = kstrtoul_from_user(user_buf, count, 0, &mask);
 933         if (ret)
 934                 return ret;
 935
 936         /* max 8 bit masks (for now) */
 937         if (mask > 0xff)
 938                 return -E2BIG;
 939
 940         mutex_lock(&ar->conf_mutex);
 941
 942         ar->debug.htt_stats_mask = mask;
 943
 944         ret = ath10k_debug_htt_stats_req(ar);
 945         if (ret)
 946                 goto out;
 947
 948         ret = count;
 949
 950 out:
 951         mutex_unlock(&ar->conf_mutex);
 952
 953         return ret;
 954 }
 955
 956 static const struct file_operations fops_htt_stats_mask = {
 957         .read = ath10k_read_htt_stats_mask,
 958         .write = ath10k_write_htt_stats_mask,
 959         .open = simple_open,
 960         .owner = THIS_MODULE,
 961         .llseek = default_llseek,
 962 };
 963
 964 static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
 965                                                char __user *user_buf,
 966                                                size_t count, loff_t *ppos)
 967 {
 968         struct ath10k *ar = file->private_data;
 969         char buf[64];
 970         u8 amsdu, ampdu;
 971         size_t len;
 972
 973         mutex_lock(&ar->conf_mutex);
 974
 975         amsdu = ar->htt.max_num_amsdu;
 976         ampdu = ar->htt.max_num_ampdu;
 977         mutex_unlock(&ar->conf_mutex);
 978
 979         len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);
 980
 981         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 982 }
 983
 984 static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
 985                                                 const char __user *user_buf,
 986                                                 size_t count, loff_t *ppos)
 987 {
 988         struct ath10k *ar = file->private_data;
 989         int res;
 990         char buf[64] = {0};
 991         unsigned int amsdu, ampdu;
 992
 993         res = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos,
 994                                      user_buf, count);
 995         if (res <= 0)
 996                 return res;
 997
 998         res = sscanf(buf, "%u %u", &amsdu, &ampdu);
 999
1000         if (res != 2)
1001                 return -EINVAL;
1002
1003         mutex_lock(&ar->conf_mutex);
1004
1005         res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
1006         if (res)
1007                 goto out;
1008
1009         res = count;
1010         ar->htt.max_num_amsdu = amsdu;
1011         ar->htt.max_num_ampdu = ampdu;
1012
1013 out:
1014         mutex_unlock(&ar->conf_mutex);
1015         return res;
1016 }
1017
1018 static const struct file_operations fops_htt_max_amsdu_ampdu = {
1019         .read = ath10k_read_htt_max_amsdu_ampdu,
1020         .write = ath10k_write_htt_max_amsdu_ampdu,
1021         .open = simple_open,
1022         .owner = THIS_MODULE,
1023         .llseek = default_llseek,
1024 };
1025
1026 static ssize_t ath10k_read_fw_dbglog(struct file *file,
1027                                      char __user *user_buf,
1028                                      size_t count, loff_t *ppos)
1029 {
1030         struct ath10k *ar = file->private_data;
1031         size_t len;
1032         char buf[96];
1033
1034         len = scnprintf(buf, sizeof(buf), "0x%16llx %u\n",
1035                         ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level);
1036
1037         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1038 }
1039
1040 static ssize_t ath10k_write_fw_dbglog(struct file *file,
1041                                       const char __user *user_buf,
1042                                       size_t count, loff_t *ppos)
1043 {
1044         struct ath10k *ar = file->private_data;
1045         int ret;
1046         char buf[96] = {0};
1047         unsigned int log_level;
1048         u64 mask;
1049
1050         ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos,
1051                                      user_buf, count);
1052         if (ret <= 0)
1053                 return ret;
1054
1055         ret = sscanf(buf, "%llx %u", &mask, &log_level);
1056
1057         if (!ret)
1058                 return -EINVAL;
1059
1060         if (ret == 1)
1061                 /* default if user did not specify */
1062                 log_level = ATH10K_DBGLOG_LEVEL_WARN;
1063
1064         mutex_lock(&ar->conf_mutex);
1065
1066         ar->debug.fw_dbglog_mask = mask;
1067         ar->debug.fw_dbglog_level = log_level;
1068
1069         if (ar->state == ATH10K_STATE_ON) {
1070                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1071                                             ar->debug.fw_dbglog_level);
1072                 if (ret) {
1073                         ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
1074                                     ret);
1075                         goto exit;
1076                 }
1077         }
1078
1079         ret = count;
1080
1081 exit:
1082         mutex_unlock(&ar->conf_mutex);
1083
1084         return ret;
1085 }
1086
1087 /* TODO:  Would be nice to always support ethtool stats, would need to
1088  * move the stats storage out of ath10k_debug, or always have ath10k_debug
1089  * struct available..
1090  */
1091
1092 /* This generally cooresponds to the debugfs fw_stats file */
1093 static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = {
1094         "tx_pkts_nic",
1095         "tx_bytes_nic",
1096         "rx_pkts_nic",
1097         "rx_bytes_nic",
1098         "d_noise_floor",
1099         "d_cycle_count",
1100         "d_phy_error",
1101         "d_rts_bad",
1102         "d_rts_good",
1103         "d_tx_power", /* in .5 dbM I think */
1104         "d_rx_crc_err", /* fcs_bad */
1105         "d_no_beacon",
1106         "d_tx_mpdus_queued",
1107         "d_tx_msdu_queued",
1108         "d_tx_msdu_dropped",
1109         "d_local_enqued",
1110         "d_local_freed",
1111         "d_tx_ppdu_hw_queued",
1112         "d_tx_ppdu_reaped",
1113         "d_tx_fifo_underrun",
1114         "d_tx_ppdu_abort",
1115         "d_tx_mpdu_requed",
1116         "d_tx_excessive_retries",
1117         "d_tx_hw_rate",
1118         "d_tx_dropped_sw_retries",
1119         "d_tx_illegal_rate",
1120         "d_tx_continuous_xretries",
1121         "d_tx_timeout",
1122         "d_tx_mpdu_txop_limit",
1123         "d_pdev_resets",
1124         "d_rx_mid_ppdu_route_change",
1125         "d_rx_status",
1126         "d_rx_extra_frags_ring0",
1127         "d_rx_extra_frags_ring1",
1128         "d_rx_extra_frags_ring2",
1129         "d_rx_extra_frags_ring3",
1130         "d_rx_msdu_htt",
1131         "d_rx_mpdu_htt",
1132         "d_rx_msdu_stack",
1133         "d_rx_mpdu_stack",
1134         "d_rx_phy_err",
1135         "d_rx_phy_err_drops",
1136         "d_rx_mpdu_errors", /* FCS, MIC, ENC */
1137         "d_fw_crash_count",
1138         "d_fw_warm_reset_count",
1139         "d_fw_cold_reset_count",
1140 };
1141
1142 #define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats)
1143
1144 void ath10k_debug_get_et_strings(struct ieee80211_hw *hw,
1145                                  struct ieee80211_vif *vif,
1146                                  u32 sset, u8 *data)
1147 {
1148         if (sset == ETH_SS_STATS)
1149                 memcpy(data, *ath10k_gstrings_stats,
1150                        sizeof(ath10k_gstrings_stats));
1151 }
1152
1153 int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw,
1154                                    struct ieee80211_vif *vif, int sset)
1155 {
1156         if (sset == ETH_SS_STATS)
1157                 return ATH10K_SSTATS_LEN;
1158
1159         return 0;
1160 }
1161
1162 void ath10k_debug_get_et_stats(struct ieee80211_hw *hw,
1163                                struct ieee80211_vif *vif,
1164                                struct ethtool_stats *stats, u64 *data)
1165 {
1166         struct ath10k *ar = hw->priv;
1167         static const struct ath10k_fw_stats_pdev zero_stats = {};
1168         const struct ath10k_fw_stats_pdev *pdev_stats;
1169         int i = 0, ret;
1170
1171         mutex_lock(&ar->conf_mutex);
1172
1173         if (ar->state == ATH10K_STATE_ON) {
1174                 ret = ath10k_debug_fw_stats_request(ar);
1175                 if (ret) {
1176                         /* just print a warning and try to use older results */
1177                         ath10k_warn(ar,
1178                                     "failed to get fw stats for ethtool: %d\n",
1179                                     ret);
1180                 }
1181         }
1182
1183         pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs,
1184                                               struct ath10k_fw_stats_pdev,
1185                                               list);
1186         if (!pdev_stats) {
1187                 /* no results available so just return zeroes */
1188                 pdev_stats = &zero_stats;
1189         }
1190
1191         spin_lock_bh(&ar->data_lock);
1192
1193         data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */
1194         data[i++] = 0; /* tx bytes */
1195         data[i++] = pdev_stats->htt_mpdus;
1196         data[i++] = 0; /* rx bytes */
1197         data[i++] = pdev_stats->ch_noise_floor;
1198         data[i++] = pdev_stats->cycle_count;
1199         data[i++] = pdev_stats->phy_err_count;
1200         data[i++] = pdev_stats->rts_bad;
1201         data[i++] = pdev_stats->rts_good;
1202         data[i++] = pdev_stats->chan_tx_power;
1203         data[i++] = pdev_stats->fcs_bad;
1204         data[i++] = pdev_stats->no_beacons;
1205         data[i++] = pdev_stats->mpdu_enqued;
1206         data[i++] = pdev_stats->msdu_enqued;
1207         data[i++] = pdev_stats->wmm_drop;
1208         data[i++] = pdev_stats->local_enqued;
1209         data[i++] = pdev_stats->local_freed;
1210         data[i++] = pdev_stats->hw_queued;
1211         data[i++] = pdev_stats->hw_reaped;
1212         data[i++] = pdev_stats->underrun;
1213         data[i++] = pdev_stats->tx_abort;
1214         data[i++] = pdev_stats->mpdus_requed;
1215         data[i++] = pdev_stats->tx_ko;
1216         data[i++] = pdev_stats->data_rc;
1217         data[i++] = pdev_stats->sw_retry_failure;
1218         data[i++] = pdev_stats->illgl_rate_phy_err;
1219         data[i++] = pdev_stats->pdev_cont_xretry;
1220         data[i++] = pdev_stats->pdev_tx_timeout;
1221         data[i++] = pdev_stats->txop_ovf;
1222         data[i++] = pdev_stats->pdev_resets;
1223         data[i++] = pdev_stats->mid_ppdu_route_change;
1224         data[i++] = pdev_stats->status_rcvd;
1225         data[i++] = pdev_stats->r0_frags;
1226         data[i++] = pdev_stats->r1_frags;
1227         data[i++] = pdev_stats->r2_frags;
1228         data[i++] = pdev_stats->r3_frags;
1229         data[i++] = pdev_stats->htt_msdus;
1230         data[i++] = pdev_stats->htt_mpdus;
1231         data[i++] = pdev_stats->loc_msdus;
1232         data[i++] = pdev_stats->loc_mpdus;
1233         data[i++] = pdev_stats->phy_errs;
1234         data[i++] = pdev_stats->phy_err_drop;
1235         data[i++] = pdev_stats->mpdu_errs;
1236         data[i++] = ar->stats.fw_crash_counter;
1237         data[i++] = ar->stats.fw_warm_reset_counter;
1238         data[i++] = ar->stats.fw_cold_reset_counter;
1239
1240         spin_unlock_bh(&ar->data_lock);
1241
1242         mutex_unlock(&ar->conf_mutex);
1243
1244         WARN_ON(i != ATH10K_SSTATS_LEN);
1245 }
1246
1247 static const struct file_operations fops_fw_dbglog = {
1248         .read = ath10k_read_fw_dbglog,
1249         .write = ath10k_write_fw_dbglog,
1250         .open = simple_open,
1251         .owner = THIS_MODULE,
1252         .llseek = default_llseek,
1253 };
1254
1255 static int ath10k_debug_cal_data_fetch(struct ath10k *ar)
1256 {
1257         u32 hi_addr;
1258         __le32 addr;
1259         int ret;
1260
1261         lockdep_assert_held(&ar->conf_mutex);
1262
1263         if (WARN_ON(ar->hw_params.cal_data_len > ATH10K_DEBUG_CAL_DATA_LEN))
1264                 return -EINVAL;
1265
1266         hi_addr = host_interest_item_address(HI_ITEM(hi_board_data));
1267
1268         ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr));
1269         if (ret) {
1270                 ath10k_warn(ar, "failed to read hi_board_data address: %d\n",
1271                             ret);
1272                 return ret;
1273         }
1274
1275         ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), ar->debug.cal_data,
1276                                    ar->hw_params.cal_data_len);
1277         if (ret) {
1278                 ath10k_warn(ar, "failed to read calibration data: %d\n", ret);
1279                 return ret;
1280         }
1281
1282         return 0;
1283 }
1284
1285 static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file)
1286 {
1287         struct ath10k *ar = inode->i_private;
1288
1289         mutex_lock(&ar->conf_mutex);
1290
1291         if (ar->state == ATH10K_STATE_ON ||
1292             ar->state == ATH10K_STATE_UTF) {
1293                 ath10k_debug_cal_data_fetch(ar);
1294         }
1295
1296         file->private_data = ar;
1297         mutex_unlock(&ar->conf_mutex);
1298
1299         return 0;
1300 }
1301
1302 static ssize_t ath10k_debug_cal_data_read(struct file *file,
1303                                           char __user *user_buf,
1304                                           size_t count, loff_t *ppos)
1305 {
1306         struct ath10k *ar = file->private_data;
1307
1308         mutex_lock(&ar->conf_mutex);
1309
1310         count = simple_read_from_buffer(user_buf, count, ppos,
1311                                         ar->debug.cal_data,
1312                                         ar->hw_params.cal_data_len);
1313
1314         mutex_unlock(&ar->conf_mutex);
1315
1316         return count;
1317 }
1318
1319 static ssize_t ath10k_write_ani_enable(struct file *file,
1320                                        const char __user *user_buf,
1321                                        size_t count, loff_t *ppos)
1322 {
1323         struct ath10k *ar = file->private_data;
1324         int ret;
1325         u8 enable;
1326
1327         if (kstrtou8_from_user(user_buf, count, 0, &enable))
1328                 return -EINVAL;
1329
1330         mutex_lock(&ar->conf_mutex);
1331
1332         if (ar->ani_enabled == enable) {
1333                 ret = count;
1334                 goto exit;
1335         }
1336
1337         ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->ani_enable,
1338                                         enable);
1339         if (ret) {
1340                 ath10k_warn(ar, "ani_enable failed from debugfs: %d\n", ret);
1341                 goto exit;
1342         }
1343         ar->ani_enabled = enable;
1344
1345         ret = count;
1346
1347 exit:
1348         mutex_unlock(&ar->conf_mutex);
1349
1350         return ret;
1351 }
1352
1353 static ssize_t ath10k_read_ani_enable(struct file *file, char __user *user_buf,
1354                                       size_t count, loff_t *ppos)
1355 {
1356         struct ath10k *ar = file->private_data;
1357         size_t len;
1358         char buf[32];
1359
1360         len = scnprintf(buf, sizeof(buf), "%d\n", ar->ani_enabled);
1361
1362         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1363 }
1364
1365 static const struct file_operations fops_ani_enable = {
1366         .read = ath10k_read_ani_enable,
1367         .write = ath10k_write_ani_enable,
1368         .open = simple_open,
1369         .owner = THIS_MODULE,
1370         .llseek = default_llseek,
1371 };
1372
1373 static const struct file_operations fops_cal_data = {
1374         .open = ath10k_debug_cal_data_open,
1375         .read = ath10k_debug_cal_data_read,
1376         .owner = THIS_MODULE,
1377         .llseek = default_llseek,
1378 };
1379
1380 static ssize_t ath10k_read_nf_cal_period(struct file *file,
1381                                          char __user *user_buf,
1382                                          size_t count, loff_t *ppos)
1383 {
1384         struct ath10k *ar = file->private_data;
1385         size_t len;
1386         char buf[32];
1387
1388         len = scnprintf(buf, sizeof(buf), "%d\n", ar->debug.nf_cal_period);
1389
1390         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1391 }
1392
1393 static ssize_t ath10k_write_nf_cal_period(struct file *file,
1394                                           const char __user *user_buf,
1395                                           size_t count, loff_t *ppos)
1396 {
1397         struct ath10k *ar = file->private_data;
1398         unsigned long period;
1399         int ret;
1400
1401         ret = kstrtoul_from_user(user_buf, count, 0, &period);
1402         if (ret)
1403                 return ret;
1404
1405         if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX)
1406                 return -EINVAL;
1407
1408         /* there's no way to switch back to the firmware default */
1409         if (period == 0)
1410                 return -EINVAL;
1411
1412         mutex_lock(&ar->conf_mutex);
1413
1414         ar->debug.nf_cal_period = period;
1415
1416         if (ar->state != ATH10K_STATE_ON) {
1417                 /* firmware is not running, nothing else to do */
1418                 ret = count;
1419                 goto exit;
1420         }
1421
1422         ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period,
1423                                         ar->debug.nf_cal_period);
1424         if (ret) {
1425                 ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n",
1426                             ret);
1427                 goto exit;
1428         }
1429
1430         ret = count;
1431
1432 exit:
1433         mutex_unlock(&ar->conf_mutex);
1434
1435         return ret;
1436 }
1437
1438 static const struct file_operations fops_nf_cal_period = {
1439         .read = ath10k_read_nf_cal_period,
1440         .write = ath10k_write_nf_cal_period,
1441         .open = simple_open,
1442         .owner = THIS_MODULE,
1443         .llseek = default_llseek,
1444 };
1445
1446 #define ATH10K_TPC_CONFIG_BUF_SIZE      (1024 * 1024)
1447
1448 static int ath10k_debug_tpc_stats_request(struct ath10k *ar)
1449 {
1450         int ret;
1451         unsigned long time_left;
1452
1453         lockdep_assert_held(&ar->conf_mutex);
1454
1455         reinit_completion(&ar->debug.tpc_complete);
1456
1457         ret = ath10k_wmi_pdev_get_tpc_config(ar, WMI_TPC_CONFIG_PARAM);
1458         if (ret) {
1459                 ath10k_warn(ar, "failed to request tpc config: %d\n", ret);
1460                 return ret;
1461         }
1462
1463         time_left = wait_for_completion_timeout(&ar->debug.tpc_complete,
1464                                                 1 * HZ);
1465         if (time_left == 0)
1466                 return -ETIMEDOUT;
1467
1468         return 0;
1469 }
1470
1471 void ath10k_debug_tpc_stats_process(struct ath10k *ar,
1472                                     struct ath10k_tpc_stats *tpc_stats)
1473 {
1474         spin_lock_bh(&ar->data_lock);
1475
1476         kfree(ar->debug.tpc_stats);
1477         ar->debug.tpc_stats = tpc_stats;
1478         complete(&ar->debug.tpc_complete);
1479
1480         spin_unlock_bh(&ar->data_lock);
1481 }
1482
1483 void
1484 ath10k_debug_tpc_stats_final_process(struct ath10k *ar,
1485                                      struct ath10k_tpc_stats_final *tpc_stats)
1486 {
1487         spin_lock_bh(&ar->data_lock);
1488
1489         kfree(ar->debug.tpc_stats_final);
1490         ar->debug.tpc_stats_final = tpc_stats;
1491         complete(&ar->debug.tpc_complete);
1492
1493         spin_unlock_bh(&ar->data_lock);
1494 }
1495
1496 static void ath10k_tpc_stats_print(struct ath10k_tpc_stats *tpc_stats,
1497                                    unsigned int j, char *buf, size_t *len)
1498 {
1499         int i;
1500         size_t buf_len;
1501         static const char table_str[][5] = { "CDD",
1502                                              "STBC",
1503                                              "TXBF" };
1504         static const char pream_str[][6] = { "CCK",
1505                                              "OFDM",
1506                                              "HT20",
1507                                              "HT40",
1508                                              "VHT20",
1509                                              "VHT40",
1510                                              "VHT80",
1511                                              "HTCUP" };
1512
1513         buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
1514         *len += scnprintf(buf + *len, buf_len - *len,
1515                           "********************************\n");
1516         *len += scnprintf(buf + *len, buf_len - *len,
1517                           "******************* %s POWER TABLE ****************\n",
1518                           table_str[j]);
1519         *len += scnprintf(buf + *len, buf_len - *len,
1520                           "********************************\n");
1521         *len += scnprintf(buf + *len, buf_len - *len,
1522                           "No.  Preamble Rate_code ");
1523
1524         for (i = 0; i < tpc_stats->num_tx_chain; i++)
1525                 *len += scnprintf(buf + *len, buf_len - *len,
1526                                   "tpc_value%d ", i);
1527
1528         *len += scnprintf(buf + *len, buf_len - *len, "\n");
1529
1530         for (i = 0; i < tpc_stats->rate_max; i++) {
1531                 *len += scnprintf(buf + *len, buf_len - *len,
1532                                   "%8d %s 0x%2x %s\n", i,
1533                                   pream_str[tpc_stats->tpc_table[j].pream_idx[i]],
1534                                   tpc_stats->tpc_table[j].rate_code[i],
1535                                   tpc_stats->tpc_table[j].tpc_value[i]);
1536         }
1537
1538         *len += scnprintf(buf + *len, buf_len - *len,
1539                           "***********************************\n");
1540 }
1541
1542 static void ath10k_tpc_stats_fill(struct ath10k *ar,
1543                                   struct ath10k_tpc_stats *tpc_stats,
1544                                   char *buf)
1545 {
1546         int j;
1547         size_t len, buf_len;
1548
1549         len = 0;
1550         buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
1551
1552         spin_lock_bh(&ar->data_lock);
1553
1554         if (!tpc_stats) {
1555                 ath10k_warn(ar, "failed to get tpc stats\n");
1556                 goto unlock;
1557         }
1558
1559         len += scnprintf(buf + len, buf_len - len, "\n");
1560         len += scnprintf(buf + len, buf_len - len,
1561                          "*************************************\n");
1562         len += scnprintf(buf + len, buf_len - len,
1563                          "TPC config for channel %4d mode %d\n",
1564                          tpc_stats->chan_freq,
1565                          tpc_stats->phy_mode);
1566         len += scnprintf(buf + len, buf_len - len,
1567                          "*************************************\n");
1568         len += scnprintf(buf + len, buf_len - len,
1569                          "CTL           =  0x%2x Reg. Domain            = %2d\n",
1570                          tpc_stats->ctl,
1571                          tpc_stats->reg_domain);
1572         len += scnprintf(buf + len, buf_len - len,
1573                          "Antenna Gain  = %2d Reg. Max Antenna Gain     =  %2d\n",
1574                          tpc_stats->twice_antenna_gain,
1575                          tpc_stats->twice_antenna_reduction);
1576         len += scnprintf(buf + len, buf_len - len,
1577                          "Power Limit   = %2d Reg. Max Power            = %2d\n",
1578                          tpc_stats->power_limit,
1579                          tpc_stats->twice_max_rd_power / 2);
1580         len += scnprintf(buf + len, buf_len - len,
1581                          "Num tx chains = %2d Num supported rates       = %2d\n",
1582                          tpc_stats->num_tx_chain,
1583                          tpc_stats->rate_max);
1584
1585         for (j = 0; j < WMI_TPC_FLAG; j++) {
1586                 switch (j) {
1587                 case WMI_TPC_TABLE_TYPE_CDD:
1588                         if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1589                                 len += scnprintf(buf + len, buf_len - len,
1590                                                  "CDD not supported\n");
1591                                 break;
1592                         }
1593
1594                         ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1595                         break;
1596                 case WMI_TPC_TABLE_TYPE_STBC:
1597                         if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1598                                 len += scnprintf(buf + len, buf_len - len,
1599                                                  "STBC not supported\n");
1600                                 break;
1601                         }
1602
1603                         ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1604                         break;
1605                 case WMI_TPC_TABLE_TYPE_TXBF:
1606                         if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1607                                 len += scnprintf(buf + len, buf_len - len,
1608                                                  "TXBF not supported\n***************************\n");
1609                                 break;
1610                         }
1611
1612                         ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1613                         break;
1614                 default:
1615                         len += scnprintf(buf + len, buf_len - len,
1616                                          "Invalid Type\n");
1617                         break;
1618                 }
1619         }
1620
1621 unlock:
1622         spin_unlock_bh(&ar->data_lock);
1623
1624         if (len >= buf_len)
1625                 buf[len - 1] = 0;
1626         else
1627                 buf[len] = 0;
1628 }
1629
1630 static int ath10k_tpc_stats_open(struct inode *inode, struct file *file)
1631 {
1632         struct ath10k *ar = inode->i_private;
1633         void *buf = NULL;
1634         int ret;
1635
1636         mutex_lock(&ar->conf_mutex);
1637
1638         if (ar->state != ATH10K_STATE_ON) {
1639                 ret = -ENETDOWN;
1640                 goto err_unlock;
1641         }
1642
1643         buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
1644         if (!buf) {
1645                 ret = -ENOMEM;
1646                 goto err_unlock;
1647         }
1648
1649         ret = ath10k_debug_tpc_stats_request(ar);
1650         if (ret) {
1651                 ath10k_warn(ar, "failed to request tpc config stats: %d\n",
1652                             ret);
1653                 goto err_free;
1654         }
1655
1656         ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
1657         file->private_data = buf;
1658
1659         mutex_unlock(&ar->conf_mutex);
1660         return 0;
1661
1662 err_free:
1663         vfree(buf);
1664
1665 err_unlock:
1666         mutex_unlock(&ar->conf_mutex);
1667         return ret;
1668 }
1669
1670 static int ath10k_tpc_stats_release(struct inode *inode, struct file *file)
1671 {
1672         vfree(file->private_data);
1673
1674         return 0;
1675 }
1676
1677 static ssize_t ath10k_tpc_stats_read(struct file *file, char __user *user_buf,
1678                                      size_t count, loff_t *ppos)
1679 {
1680         const char *buf = file->private_data;
1681         size_t len = strlen(buf);
1682
1683         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1684 }
1685
1686 static const struct file_operations fops_tpc_stats = {
1687         .open = ath10k_tpc_stats_open,
1688         .release = ath10k_tpc_stats_release,
1689         .read = ath10k_tpc_stats_read,
1690         .owner = THIS_MODULE,
1691         .llseek = default_llseek,
1692 };
1693
1694 int ath10k_debug_start(struct ath10k *ar)
1695 {
1696         int ret;
1697
1698         lockdep_assert_held(&ar->conf_mutex);
1699
1700         ret = ath10k_debug_htt_stats_req(ar);
1701         if (ret)
1702                 /* continue normally anyway, this isn't serious */
1703                 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n",
1704                             ret);
1705
1706         if (ar->debug.fw_dbglog_mask) {
1707                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1708                                             ATH10K_DBGLOG_LEVEL_WARN);
1709                 if (ret)
1710                         /* not serious */
1711                         ath10k_warn(ar, "failed to enable dbglog during start: %d",
1712                                     ret);
1713         }
1714
1715         if (ar->pktlog_filter) {
1716                 ret = ath10k_wmi_pdev_pktlog_enable(ar,
1717                                                     ar->pktlog_filter);
1718                 if (ret)
1719                         /* not serious */
1720                         ath10k_warn(ar,
1721                                     "failed to enable pktlog filter %x: %d\n",
1722                                     ar->pktlog_filter, ret);
1723         } else {
1724                 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1725                 if (ret)
1726                         /* not serious */
1727                         ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1728         }
1729
1730         if (ar->debug.nf_cal_period &&
1731             !test_bit(ATH10K_FW_FEATURE_NON_BMI,
1732                       ar->normal_mode_fw.fw_file.fw_features)) {
1733                 ret = ath10k_wmi_pdev_set_param(ar,
1734                                                 ar->wmi.pdev_param->cal_period,
1735                                                 ar->debug.nf_cal_period);
1736                 if (ret)
1737                         /* not serious */
1738                         ath10k_warn(ar, "cal period cfg failed from debug start: %d\n",
1739                                     ret);
1740         }
1741
1742         return ret;
1743 }
1744
1745 void ath10k_debug_stop(struct ath10k *ar)
1746 {
1747         lockdep_assert_held(&ar->conf_mutex);
1748
1749         if (!test_bit(ATH10K_FW_FEATURE_NON_BMI,
1750                       ar->normal_mode_fw.fw_file.fw_features))
1751                 ath10k_debug_cal_data_fetch(ar);
1752
1753         /* Must not use _sync to avoid deadlock, we do that in
1754          * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
1755          * warning from del_timer().
1756          */
1757         if (ar->debug.htt_stats_mask != 0)
1758                 cancel_delayed_work(&ar->debug.htt_stats_dwork);
1759
1760         ath10k_wmi_pdev_pktlog_disable(ar);
1761 }
1762
1763 static ssize_t ath10k_write_simulate_radar(struct file *file,
1764                                            const char __user *user_buf,
1765                                            size_t count, loff_t *ppos)
1766 {
1767         struct ath10k *ar = file->private_data;
1768         struct ath10k_vif *arvif;
1769
1770         /* Just check for for the first vif alone, as all the vifs will be
1771          * sharing the same channel and if the channel is disabled, all the
1772          * vifs will share the same 'is_started' state.
1773          */
1774         arvif = list_first_entry(&ar->arvifs, typeof(*arvif), list);
1775         if (!arvif->is_started)
1776                 return -EINVAL;
1777
1778         ieee80211_radar_detected(ar->hw);
1779
1780         return count;
1781 }
1782
1783 static const struct file_operations fops_simulate_radar = {
1784         .write = ath10k_write_simulate_radar,
1785         .open = simple_open,
1786         .owner = THIS_MODULE,
1787         .llseek = default_llseek,
1788 };
1789
1790 #define ATH10K_DFS_STAT(s, p) (\
1791         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1792                          ar->debug.dfs_stats.p))
1793
1794 #define ATH10K_DFS_POOL_STAT(s, p) (\
1795         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1796                          ar->debug.dfs_pool_stats.p))
1797
1798 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
1799                                      size_t count, loff_t *ppos)
1800 {
1801         int retval = 0, len = 0;
1802         const int size = 8000;
1803         struct ath10k *ar = file->private_data;
1804         char *buf;
1805
1806         buf = kzalloc(size, GFP_KERNEL);
1807         if (buf == NULL)
1808                 return -ENOMEM;
1809
1810         if (!ar->dfs_detector) {
1811                 len += scnprintf(buf + len, size - len, "DFS not enabled\n");
1812                 goto exit;
1813         }
1814
1815         ar->debug.dfs_pool_stats =
1816                         ar->dfs_detector->get_stats(ar->dfs_detector);
1817
1818         len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
1819
1820         ATH10K_DFS_STAT("reported phy errors", phy_errors);
1821         ATH10K_DFS_STAT("pulse events reported", pulses_total);
1822         ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
1823         ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
1824         ATH10K_DFS_STAT("Radars detected", radar_detected);
1825
1826         len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
1827         ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
1828         ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
1829         ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
1830         ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
1831         ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
1832         ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
1833         ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
1834
1835 exit:
1836         if (len > size)
1837                 len = size;
1838
1839         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1840         kfree(buf);
1841
1842         return retval;
1843 }
1844
1845 static const struct file_operations fops_dfs_stats = {
1846         .read = ath10k_read_dfs_stats,
1847         .open = simple_open,
1848         .owner = THIS_MODULE,
1849         .llseek = default_llseek,
1850 };
1851
1852 static ssize_t ath10k_write_pktlog_filter(struct file *file,
1853                                           const char __user *ubuf,
1854                                           size_t count, loff_t *ppos)
1855 {
1856         struct ath10k *ar = file->private_data;
1857         u32 filter;
1858         int ret;
1859
1860         if (kstrtouint_from_user(ubuf, count, 0, &filter))
1861                 return -EINVAL;
1862
1863         mutex_lock(&ar->conf_mutex);
1864
1865         if (ar->state != ATH10K_STATE_ON) {
1866                 ar->pktlog_filter = filter;
1867                 ret = count;
1868                 goto out;
1869         }
1870
1871         if (filter == ar->pktlog_filter) {
1872                 ret = count;
1873                 goto out;
1874         }
1875
1876         if (filter) {
1877                 ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
1878                 if (ret) {
1879                         ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
1880                                     ar->pktlog_filter, ret);
1881                         goto out;
1882                 }
1883         } else {
1884                 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1885                 if (ret) {
1886                         ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1887                         goto out;
1888                 }
1889         }
1890
1891         ar->pktlog_filter = filter;
1892         ret = count;
1893
1894 out:
1895         mutex_unlock(&ar->conf_mutex);
1896         return ret;
1897 }
1898
1899 static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf,
1900                                          size_t count, loff_t *ppos)
1901 {
1902         char buf[32];
1903         struct ath10k *ar = file->private_data;
1904         int len = 0;
1905
1906         mutex_lock(&ar->conf_mutex);
1907         len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
1908                         ar->pktlog_filter);
1909         mutex_unlock(&ar->conf_mutex);
1910
1911         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
1912 }
1913
1914 static const struct file_operations fops_pktlog_filter = {
1915         .read = ath10k_read_pktlog_filter,
1916         .write = ath10k_write_pktlog_filter,
1917         .open = simple_open
1918 };
1919
1920 static ssize_t ath10k_write_quiet_period(struct file *file,
1921                                          const char __user *ubuf,
1922                                          size_t count, loff_t *ppos)
1923 {
1924         struct ath10k *ar = file->private_data;
1925         u32 period;
1926
1927         if (kstrtouint_from_user(ubuf, count, 0, &period))
1928                 return -EINVAL;
1929
1930         if (period < ATH10K_QUIET_PERIOD_MIN) {
1931                 ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n",
1932                             period);
1933                 return -EINVAL;
1934         }
1935         mutex_lock(&ar->conf_mutex);
1936         ar->thermal.quiet_period = period;
1937         ath10k_thermal_set_throttling(ar);
1938         mutex_unlock(&ar->conf_mutex);
1939
1940         return count;
1941 }
1942
1943 static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf,
1944                                         size_t count, loff_t *ppos)
1945 {
1946         char buf[32];
1947         struct ath10k *ar = file->private_data;
1948         int len = 0;
1949
1950         mutex_lock(&ar->conf_mutex);
1951         len = scnprintf(buf, sizeof(buf) - len, "%d\n",
1952                         ar->thermal.quiet_period);
1953         mutex_unlock(&ar->conf_mutex);
1954
1955         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
1956 }
1957
1958 static const struct file_operations fops_quiet_period = {
1959         .read = ath10k_read_quiet_period,
1960         .write = ath10k_write_quiet_period,
1961         .open = simple_open
1962 };
1963
1964 static ssize_t ath10k_write_btcoex(struct file *file,
1965                                    const char __user *ubuf,
1966                                    size_t count, loff_t *ppos)
1967 {
1968         struct ath10k *ar = file->private_data;
1969         char buf[32];
1970         size_t buf_size;
1971         int ret;
1972         bool val;
1973         u32 pdev_param;
1974
1975         buf_size = min(count, (sizeof(buf) - 1));
1976         if (copy_from_user(buf, ubuf, buf_size))
1977                 return -EFAULT;
1978
1979         buf[buf_size] = '\0';
1980
1981         if (strtobool(buf, &val) != 0)
1982                 return -EINVAL;
1983
1984         mutex_lock(&ar->conf_mutex);
1985
1986         if (ar->state != ATH10K_STATE_ON &&
1987             ar->state != ATH10K_STATE_RESTARTED) {
1988                 ret = -ENETDOWN;
1989                 goto exit;
1990         }
1991
1992         if (!(test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags) ^ val)) {
1993                 ret = count;
1994                 goto exit;
1995         }
1996
1997         pdev_param = ar->wmi.pdev_param->enable_btcoex;
1998         if (test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
1999                      ar->running_fw->fw_file.fw_features)) {
2000                 ret = ath10k_wmi_pdev_set_param(ar, pdev_param, val);
2001                 if (ret) {
2002                         ath10k_warn(ar, "failed to enable btcoex: %d\n", ret);
2003                         ret = count;
2004                         goto exit;
2005                 }
2006         } else {
2007                 ath10k_info(ar, "restarting firmware due to btcoex change");
2008                 queue_work(ar->workqueue, &ar->restart_work);
2009         }
2010
2011         if (val)
2012                 set_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
2013         else
2014                 clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
2015
2016         ret = count;
2017
2018 exit:
2019         mutex_unlock(&ar->conf_mutex);
2020
2021         return ret;
2022 }
2023
2024 static ssize_t ath10k_read_btcoex(struct file *file, char __user *ubuf,
2025                                   size_t count, loff_t *ppos)
2026 {
2027         char buf[32];
2028         struct ath10k *ar = file->private_data;
2029         int len = 0;
2030
2031         mutex_lock(&ar->conf_mutex);
2032         len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2033                         test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags));
2034         mutex_unlock(&ar->conf_mutex);
2035
2036         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2037 }
2038
2039 static const struct file_operations fops_btcoex = {
2040         .read = ath10k_read_btcoex,
2041         .write = ath10k_write_btcoex,
2042         .open = simple_open
2043 };
2044
2045 static ssize_t ath10k_write_peer_stats(struct file *file,
2046                                        const char __user *ubuf,
2047                                        size_t count, loff_t *ppos)
2048 {
2049         struct ath10k *ar = file->private_data;
2050         char buf[32];
2051         size_t buf_size;
2052         int ret;
2053         bool val;
2054
2055         buf_size = min(count, (sizeof(buf) - 1));
2056         if (copy_from_user(buf, ubuf, buf_size))
2057                 return -EFAULT;
2058
2059         buf[buf_size] = '\0';
2060
2061         if (strtobool(buf, &val) != 0)
2062                 return -EINVAL;
2063
2064         mutex_lock(&ar->conf_mutex);
2065
2066         if (ar->state != ATH10K_STATE_ON &&
2067             ar->state != ATH10K_STATE_RESTARTED) {
2068                 ret = -ENETDOWN;
2069                 goto exit;
2070         }
2071
2072         if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val)) {
2073                 ret = count;
2074                 goto exit;
2075         }
2076
2077         if (val)
2078                 set_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
2079         else
2080                 clear_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
2081
2082         ath10k_info(ar, "restarting firmware due to Peer stats change");
2083
2084         queue_work(ar->workqueue, &ar->restart_work);
2085         ret = count;
2086
2087 exit:
2088         mutex_unlock(&ar->conf_mutex);
2089         return ret;
2090 }
2091
2092 static ssize_t ath10k_read_peer_stats(struct file *file, char __user *ubuf,
2093                                       size_t count, loff_t *ppos)
2094
2095 {
2096         char buf[32];
2097         struct ath10k *ar = file->private_data;
2098         int len = 0;
2099
2100         mutex_lock(&ar->conf_mutex);
2101         len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2102                         test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags));
2103         mutex_unlock(&ar->conf_mutex);
2104
2105         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2106 }
2107
2108 static const struct file_operations fops_peer_stats = {
2109         .read = ath10k_read_peer_stats,
2110         .write = ath10k_write_peer_stats,
2111         .open = simple_open
2112 };
2113
2114 static ssize_t ath10k_debug_fw_checksums_read(struct file *file,
2115                                               char __user *user_buf,
2116                                               size_t count, loff_t *ppos)
2117 {
2118         struct ath10k *ar = file->private_data;
2119         size_t len = 0, buf_len = 4096;
2120         ssize_t ret_cnt;
2121         char *buf;
2122
2123         buf = kzalloc(buf_len, GFP_KERNEL);
2124         if (!buf)
2125                 return -ENOMEM;
2126
2127         mutex_lock(&ar->conf_mutex);
2128
2129         len += scnprintf(buf + len, buf_len - len,
2130                          "firmware-N.bin\t\t%08x\n",
2131                          crc32_le(0, ar->normal_mode_fw.fw_file.firmware->data,
2132                                   ar->normal_mode_fw.fw_file.firmware->size));
2133         len += scnprintf(buf + len, buf_len - len,
2134                          "athwlan\t\t\t%08x\n",
2135                          crc32_le(0, ar->normal_mode_fw.fw_file.firmware_data,
2136                                   ar->normal_mode_fw.fw_file.firmware_len));
2137         len += scnprintf(buf + len, buf_len - len,
2138                          "otp\t\t\t%08x\n",
2139                          crc32_le(0, ar->normal_mode_fw.fw_file.otp_data,
2140                                   ar->normal_mode_fw.fw_file.otp_len));
2141         len += scnprintf(buf + len, buf_len - len,
2142                          "codeswap\t\t%08x\n",
2143                          crc32_le(0, ar->normal_mode_fw.fw_file.codeswap_data,
2144                                   ar->normal_mode_fw.fw_file.codeswap_len));
2145         len += scnprintf(buf + len, buf_len - len,
2146                          "board-N.bin\t\t%08x\n",
2147                          crc32_le(0, ar->normal_mode_fw.board->data,
2148                                   ar->normal_mode_fw.board->size));
2149         len += scnprintf(buf + len, buf_len - len,
2150                          "board\t\t\t%08x\n",
2151                          crc32_le(0, ar->normal_mode_fw.board_data,
2152                                   ar->normal_mode_fw.board_len));
2153
2154         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
2155
2156         mutex_unlock(&ar->conf_mutex);
2157
2158         kfree(buf);
2159         return ret_cnt;
2160 }
2161
2162 static const struct file_operations fops_fw_checksums = {
2163         .read = ath10k_debug_fw_checksums_read,
2164         .open = simple_open,
2165         .owner = THIS_MODULE,
2166         .llseek = default_llseek,
2167 };
2168
2169 static ssize_t ath10k_sta_tid_stats_mask_read(struct file *file,
2170                                               char __user *user_buf,
2171                                               size_t count, loff_t *ppos)
2172 {
2173         struct ath10k *ar = file->private_data;
2174         char buf[32];
2175         size_t len;
2176
2177         len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->sta_tid_stats_mask);
2178         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2179 }
2180
2181 static ssize_t ath10k_sta_tid_stats_mask_write(struct file *file,
2182                                                const char __user *user_buf,
2183                                                size_t count, loff_t *ppos)
2184 {
2185         struct ath10k *ar = file->private_data;
2186         char buf[32];
2187         ssize_t len;
2188         u32 mask;
2189
2190         len = min(count, sizeof(buf) - 1);
2191         if (copy_from_user(buf, user_buf, len))
2192                 return -EFAULT;
2193
2194         buf[len] = '\0';
2195         if (kstrtoint(buf, 0, &mask))
2196                 return -EINVAL;
2197
2198         ar->sta_tid_stats_mask = mask;
2199
2200         return len;
2201 }
2202
2203 static const struct file_operations fops_sta_tid_stats_mask = {
2204         .read = ath10k_sta_tid_stats_mask_read,
2205         .write = ath10k_sta_tid_stats_mask_write,
2206         .open = simple_open,
2207         .owner = THIS_MODULE,
2208         .llseek = default_llseek,
2209 };
2210
2211 static int ath10k_debug_tpc_stats_final_request(struct ath10k *ar)
2212 {
2213         int ret;
2214         unsigned long time_left;
2215
2216         lockdep_assert_held(&ar->conf_mutex);
2217
2218         reinit_completion(&ar->debug.tpc_complete);
2219
2220         ret = ath10k_wmi_pdev_get_tpc_table_cmdid(ar, WMI_TPC_CONFIG_PARAM);
2221         if (ret) {
2222                 ath10k_warn(ar, "failed to request tpc table cmdid: %d\n", ret);
2223                 return ret;
2224         }
2225
2226         time_left = wait_for_completion_timeout(&ar->debug.tpc_complete,
2227                                                 1 * HZ);
2228         if (time_left == 0)
2229                 return -ETIMEDOUT;
2230
2231         return 0;
2232 }
2233
2234 static int ath10k_tpc_stats_final_open(struct inode *inode, struct file *file)
2235 {
2236         struct ath10k *ar = inode->i_private;
2237         void *buf;
2238         int ret;
2239
2240         mutex_lock(&ar->conf_mutex);
2241
2242         if (ar->state != ATH10K_STATE_ON) {
2243                 ret = -ENETDOWN;
2244                 goto err_unlock;
2245         }
2246
2247         buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
2248         if (!buf) {
2249                 ret = -ENOMEM;
2250                 goto err_unlock;
2251         }
2252
2253         ret = ath10k_debug_tpc_stats_final_request(ar);
2254         if (ret) {
2255                 ath10k_warn(ar, "failed to request tpc stats final: %d\n",
2256                             ret);
2257                 goto err_free;
2258         }
2259
2260         ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
2261         file->private_data = buf;
2262
2263         mutex_unlock(&ar->conf_mutex);
2264         return 0;
2265
2266 err_free:
2267         vfree(buf);
2268
2269 err_unlock:
2270         mutex_unlock(&ar->conf_mutex);
2271         return ret;
2272 }
2273
2274 static int ath10k_tpc_stats_final_release(struct inode *inode,
2275                                           struct file *file)
2276 {
2277         vfree(file->private_data);
2278
2279         return 0;
2280 }
2281
2282 static ssize_t ath10k_tpc_stats_final_read(struct file *file,
2283                                            char __user *user_buf,
2284                                            size_t count, loff_t *ppos)
2285 {
2286         const char *buf = file->private_data;
2287         unsigned int len = strlen(buf);
2288
2289         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2290 }
2291
2292 static const struct file_operations fops_tpc_stats_final = {
2293         .open = ath10k_tpc_stats_final_open,
2294         .release = ath10k_tpc_stats_final_release,
2295         .read = ath10k_tpc_stats_final_read,
2296         .owner = THIS_MODULE,
2297         .llseek = default_llseek,
2298 };
2299
2300 static ssize_t ath10k_write_warm_hw_reset(struct file *file,
2301                                           const char __user *user_buf,
2302                                           size_t count, loff_t *ppos)
2303 {
2304         struct ath10k *ar = file->private_data;
2305         int ret;
2306         bool val;
2307
2308         if (kstrtobool_from_user(user_buf, count, &val))
2309                 return -EFAULT;
2310
2311         if (!val)
2312                 return -EINVAL;
2313
2314         mutex_lock(&ar->conf_mutex);
2315
2316         if (ar->state != ATH10K_STATE_ON) {
2317                 ret = -ENETDOWN;
2318                 goto exit;
2319         }
2320
2321         if (!(test_bit(WMI_SERVICE_RESET_CHIP, ar->wmi.svc_map)))
2322                 ath10k_warn(ar, "wmi service for reset chip is not available\n");
2323
2324         ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->pdev_reset,
2325                                         WMI_RST_MODE_WARM_RESET);
2326
2327         if (ret) {
2328                 ath10k_warn(ar, "failed to enable warm hw reset: %d\n", ret);
2329                 goto exit;
2330         }
2331
2332         ret = count;
2333
2334 exit:
2335         mutex_unlock(&ar->conf_mutex);
2336         return ret;
2337 }
2338
2339 static const struct file_operations fops_warm_hw_reset = {
2340         .write = ath10k_write_warm_hw_reset,
2341         .open = simple_open,
2342         .owner = THIS_MODULE,
2343         .llseek = default_llseek,
2344 };
2345
2346 int ath10k_debug_create(struct ath10k *ar)
2347 {
2348         ar->debug.cal_data = vzalloc(ATH10K_DEBUG_CAL_DATA_LEN);
2349         if (!ar->debug.cal_data)
2350                 return -ENOMEM;
2351
2352         INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs);
2353         INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs);
2354         INIT_LIST_HEAD(&ar->debug.fw_stats.peers);
2355         INIT_LIST_HEAD(&ar->debug.fw_stats.peers_extd);
2356
2357         return 0;
2358 }
2359
2360 void ath10k_debug_destroy(struct ath10k *ar)
2361 {
2362         vfree(ar->debug.cal_data);
2363         ar->debug.cal_data = NULL;
2364
2365         ath10k_debug_fw_stats_reset(ar);
2366
2367         kfree(ar->debug.tpc_stats);
2368         kfree(ar->debug.tpc_stats_final);
2369 }
2370
2371 int ath10k_debug_register(struct ath10k *ar)
2372 {
2373         ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
2374                                                    ar->hw->wiphy->debugfsdir);
2375         if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) {
2376                 if (IS_ERR(ar->debug.debugfs_phy))
2377                         return PTR_ERR(ar->debug.debugfs_phy);
2378
2379                 return -ENOMEM;
2380         }
2381
2382         INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
2383                           ath10k_debug_htt_stats_dwork);
2384
2385         init_completion(&ar->debug.tpc_complete);
2386         init_completion(&ar->debug.fw_stats_complete);
2387
2388         debugfs_create_file("fw_stats", 0400, ar->debug.debugfs_phy, ar,
2389                             &fops_fw_stats);
2390
2391         debugfs_create_file("fw_reset_stats", 0400, ar->debug.debugfs_phy, ar,
2392                             &fops_fw_reset_stats);
2393
2394         debugfs_create_file("wmi_services", 0400, ar->debug.debugfs_phy, ar,
2395                             &fops_wmi_services);
2396
2397         debugfs_create_file("simulate_fw_crash", 0600, ar->debug.debugfs_phy, ar,
2398                             &fops_simulate_fw_crash);
2399
2400         debugfs_create_file("reg_addr", 0600, ar->debug.debugfs_phy, ar,
2401                             &fops_reg_addr);
2402
2403         debugfs_create_file("reg_value", 0600, ar->debug.debugfs_phy, ar,
2404                             &fops_reg_value);
2405
2406         debugfs_create_file("mem_value", 0600, ar->debug.debugfs_phy, ar,
2407                             &fops_mem_value);
2408
2409         debugfs_create_file("chip_id", 0400, ar->debug.debugfs_phy, ar,
2410                             &fops_chip_id);
2411
2412         debugfs_create_file("htt_stats_mask", 0600, ar->debug.debugfs_phy, ar,
2413                             &fops_htt_stats_mask);
2414
2415         debugfs_create_file("htt_max_amsdu_ampdu", 0600, ar->debug.debugfs_phy, ar,
2416                             &fops_htt_max_amsdu_ampdu);
2417
2418         debugfs_create_file("fw_dbglog", 0600, ar->debug.debugfs_phy, ar,
2419                             &fops_fw_dbglog);
2420
2421         if (!test_bit(ATH10K_FW_FEATURE_NON_BMI,
2422                       ar->normal_mode_fw.fw_file.fw_features)) {
2423                 debugfs_create_file("cal_data", 0400, ar->debug.debugfs_phy, ar,
2424                                     &fops_cal_data);
2425
2426                 debugfs_create_file("nf_cal_period", 0600, ar->debug.debugfs_phy, ar,
2427                                     &fops_nf_cal_period);
2428         }
2429
2430         debugfs_create_file("ani_enable", 0600, ar->debug.debugfs_phy, ar,
2431                             &fops_ani_enable);
2432
2433         if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED)) {
2434                 debugfs_create_file("dfs_simulate_radar", 0200, ar->debug.debugfs_phy,
2435                                     ar, &fops_simulate_radar);
2436
2437                 debugfs_create_bool("dfs_block_radar_events", 0200,
2438                                     ar->debug.debugfs_phy,
2439                                     &ar->dfs_block_radar_events);
2440
2441                 debugfs_create_file("dfs_stats", 0400, ar->debug.debugfs_phy, ar,
2442                                     &fops_dfs_stats);
2443         }
2444
2445         debugfs_create_file("pktlog_filter", 0644, ar->debug.debugfs_phy, ar,
2446                             &fops_pktlog_filter);
2447
2448         debugfs_create_file("quiet_period", 0644, ar->debug.debugfs_phy, ar,
2449                             &fops_quiet_period);
2450
2451         debugfs_create_file("tpc_stats", 0400, ar->debug.debugfs_phy, ar,
2452                             &fops_tpc_stats);
2453
2454         if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map))
2455                 debugfs_create_file("btcoex", 0644, ar->debug.debugfs_phy, ar,
2456                                     &fops_btcoex);
2457
2458         if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map))
2459                 debugfs_create_file("peer_stats", 0644, ar->debug.debugfs_phy, ar,
2460                                     &fops_peer_stats);
2461
2462         debugfs_create_file("fw_checksums", 0400, ar->debug.debugfs_phy, ar,
2463                             &fops_fw_checksums);
2464
2465         if (IS_ENABLED(CONFIG_MAC80211_DEBUGFS))
2466                 debugfs_create_file("sta_tid_stats_mask", 0600,
2467                                     ar->debug.debugfs_phy,
2468                                     ar, &fops_sta_tid_stats_mask);
2469
2470         if (test_bit(WMI_SERVICE_TPC_STATS_FINAL, ar->wmi.svc_map))
2471                 debugfs_create_file("tpc_stats_final", 0400,
2472                                     ar->debug.debugfs_phy, ar,
2473                                     &fops_tpc_stats_final);
2474
2475         debugfs_create_file("warm_hw_reset", 0600, ar->debug.debugfs_phy, ar,
2476                             &fops_warm_hw_reset);
2477
2478         return 0;
2479 }
2480
2481 void ath10k_debug_unregister(struct ath10k *ar)
2482 {
2483         cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
2484 }
2485
2486 #endif /* CONFIG_ATH10K_DEBUGFS */
2487
2488 #ifdef CONFIG_ATH10K_DEBUG
2489 void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
2490                 const char *fmt, ...)
2491 {
2492         struct va_format vaf;
2493         va_list args;
2494
2495         va_start(args, fmt);
2496
2497         vaf.fmt = fmt;
2498         vaf.va = &args;
2499
2500         if (ath10k_debug_mask & mask)
2501                 dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
2502
2503         trace_ath10k_log_dbg(ar, mask, &vaf);
2504
2505         va_end(args);
2506 }
2507 EXPORT_SYMBOL(ath10k_dbg);
2508
2509 void ath10k_dbg_dump(struct ath10k *ar,
2510                      enum ath10k_debug_mask mask,
2511                      const char *msg, const char *prefix,
2512                      const void *buf, size_t len)
2513 {
2514         char linebuf[256];
2515         size_t linebuflen;
2516         const void *ptr;
2517
2518         if (ath10k_debug_mask & mask) {
2519                 if (msg)
2520                         ath10k_dbg(ar, mask, "%s\n", msg);
2521
2522                 for (ptr = buf; (ptr - buf) < len; ptr += 16) {
2523                         linebuflen = 0;
2524                         linebuflen += scnprintf(linebuf + linebuflen,
2525                                                 sizeof(linebuf) - linebuflen,
2526                                                 "%s%08x: ",
2527                                                 (prefix ? prefix : ""),
2528                                                 (unsigned int)(ptr - buf));
2529                         hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1,
2530                                            linebuf + linebuflen,
2531                                            sizeof(linebuf) - linebuflen, true);
2532                         dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf);
2533                 }
2534         }
2535
2536         /* tracing code doesn't like null strings :/ */
2537         trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
2538                                   buf, len);
2539 }
2540 EXPORT_SYMBOL(ath10k_dbg_dump);
2541
2542 #endif /* CONFIG_ATH10K_DEBUG */