1 // SPDX-License-Identifier: ISC 2 /* 3 * Copyright (c) 2005-2011 Atheros Communications Inc. 4 * Copyright (c) 2011-2017 Qualcomm Atheros, Inc. 5 * Copyright (c) 2018, The Linux Foundation. All rights reserved. 6 */ 7 8 #include <linux/module.h> 9 #include <linux/debugfs.h> 10 #include <linux/vmalloc.h> 11 #include <linux/crc32.h> 12 #include <linux/firmware.h> 13 14 #include "core.h" 15 #include "debug.h" 16 #include "hif.h" 17 #include "wmi-ops.h" 18 19 /* ms */ 20 #define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000 21 22 #define ATH10K_DEBUG_CAL_DATA_LEN 12064 23 24 void ath10k_info(struct ath10k *ar, const char *fmt, ...) 25 { 26 struct va_format vaf = { 27 .fmt = fmt, 28 }; 29 va_list args; 30 31 va_start(args, fmt); 32 vaf.va = &args; 33 dev_info(ar->dev, "%pV", &vaf); 34 trace_ath10k_log_info(ar, &vaf); 35 va_end(args); 36 } 37 EXPORT_SYMBOL(ath10k_info); 38 39 void ath10k_debug_print_hwfw_info(struct ath10k *ar) 40 { 41 const struct firmware *firmware; 42 char fw_features[128] = {}; 43 u32 crc = 0; 44 45 ath10k_core_get_fw_features_str(ar, fw_features, sizeof(fw_features)); 46 47 ath10k_info(ar, "%s target 0x%08x chip_id 0x%08x sub %04x:%04x", 48 ar->hw_params.name, 49 ar->target_version, 50 ar->bus_param.chip_id, 51 ar->id.subsystem_vendor, ar->id.subsystem_device); 52 53 ath10k_info(ar, "kconfig debug %d debugfs %d tracing %d dfs %d testmode %d\n", 54 IS_ENABLED(CONFIG_ATH10K_DEBUG), 55 IS_ENABLED(CONFIG_ATH10K_DEBUGFS), 56 IS_ENABLED(CONFIG_ATH10K_TRACING), 57 IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED), 58 IS_ENABLED(CONFIG_NL80211_TESTMODE)); 59 60 firmware = ar->normal_mode_fw.fw_file.firmware; 61 if (firmware) 62 crc = crc32_le(0, firmware->data, firmware->size); 63 64 ath10k_info(ar, "firmware ver %s api %d features %s crc32 %08x\n", 65 ar->hw->wiphy->fw_version, 66 ar->fw_api, 67 fw_features, 68 crc); 69 } 70 71 void ath10k_debug_print_board_info(struct ath10k *ar) 72 { 73 char boardinfo[100]; 74 const struct firmware *board; 75 u32 crc; 76 77 if (ar->id.bmi_ids_valid) 78 scnprintf(boardinfo, sizeof(boardinfo), "%d:%d", 79 ar->id.bmi_chip_id, ar->id.bmi_board_id); 80 else 81 scnprintf(boardinfo, sizeof(boardinfo), "N/A"); 82 83 board = ar->normal_mode_fw.board; 84 if (!IS_ERR_OR_NULL(board)) 85 crc = crc32_le(0, board->data, board->size); 86 else 87 crc = 0; 88 89 ath10k_info(ar, "board_file api %d bmi_id %s crc32 %08x", 90 ar->bd_api, 91 boardinfo, 92 crc); 93 } 94 95 void ath10k_debug_print_boot_info(struct ath10k *ar) 96 { 97 ath10k_info(ar, "htt-ver %d.%d wmi-op %d htt-op %d cal %s max-sta %d raw %d hwcrypto %d\n", 98 ar->htt.target_version_major, 99 ar->htt.target_version_minor, 100 ar->normal_mode_fw.fw_file.wmi_op_version, 101 ar->normal_mode_fw.fw_file.htt_op_version, 102 ath10k_cal_mode_str(ar->cal_mode), 103 ar->max_num_stations, 104 test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags), 105 !test_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags)); 106 } 107 108 void ath10k_print_driver_info(struct ath10k *ar) 109 { 110 ath10k_debug_print_hwfw_info(ar); 111 ath10k_debug_print_board_info(ar); 112 ath10k_debug_print_boot_info(ar); 113 } 114 EXPORT_SYMBOL(ath10k_print_driver_info); 115 116 void ath10k_err(struct ath10k *ar, const char *fmt, ...) 117 { 118 struct va_format vaf = { 119 .fmt = fmt, 120 }; 121 va_list args; 122 123 va_start(args, fmt); 124 vaf.va = &args; 125 dev_err(ar->dev, "%pV", &vaf); 126 trace_ath10k_log_err(ar, &vaf); 127 va_end(args); 128 } 129 EXPORT_SYMBOL(ath10k_err); 130 131 void ath10k_warn(struct ath10k *ar, const char *fmt, ...) 132 { 133 struct va_format vaf = { 134 .fmt = fmt, 135 }; 136 va_list args; 137 138 va_start(args, fmt); 139 vaf.va = &args; 140 dev_warn_ratelimited(ar->dev, "%pV", &vaf); 141 trace_ath10k_log_warn(ar, &vaf); 142 143 va_end(args); 144 } 145 EXPORT_SYMBOL(ath10k_warn); 146 147 #ifdef CONFIG_ATH10K_DEBUGFS 148 149 static ssize_t ath10k_read_wmi_services(struct file *file, 150 char __user *user_buf, 151 size_t count, loff_t *ppos) 152 { 153 struct ath10k *ar = file->private_data; 154 char *buf; 155 size_t len = 0, buf_len = 8192; 156 const char *name; 157 ssize_t ret_cnt; 158 bool enabled; 159 int i; 160 161 buf = kzalloc(buf_len, GFP_KERNEL); 162 if (!buf) 163 return -ENOMEM; 164 165 mutex_lock(&ar->conf_mutex); 166 167 spin_lock_bh(&ar->data_lock); 168 for (i = 0; i < WMI_SERVICE_MAX; i++) { 169 enabled = test_bit(i, ar->wmi.svc_map); 170 name = wmi_service_name(i); 171 172 if (!name) { 173 if (enabled) 174 len += scnprintf(buf + len, buf_len - len, 175 "%-40s %s (bit %d)\n", 176 "unknown", "enabled", i); 177 178 continue; 179 } 180 181 len += scnprintf(buf + len, buf_len - len, 182 "%-40s %s\n", 183 name, enabled ? "enabled" : "-"); 184 } 185 spin_unlock_bh(&ar->data_lock); 186 187 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 188 189 mutex_unlock(&ar->conf_mutex); 190 191 kfree(buf); 192 return ret_cnt; 193 } 194 195 static const struct file_operations fops_wmi_services = { 196 .read = ath10k_read_wmi_services, 197 .open = simple_open, 198 .owner = THIS_MODULE, 199 .llseek = default_llseek, 200 }; 201 202 static void ath10k_fw_stats_pdevs_free(struct list_head *head) 203 { 204 struct ath10k_fw_stats_pdev *i, *tmp; 205 206 list_for_each_entry_safe(i, tmp, head, list) { 207 list_del(&i->list); 208 kfree(i); 209 } 210 } 211 212 static void ath10k_fw_stats_vdevs_free(struct list_head *head) 213 { 214 struct ath10k_fw_stats_vdev *i, *tmp; 215 216 list_for_each_entry_safe(i, tmp, head, list) { 217 list_del(&i->list); 218 kfree(i); 219 } 220 } 221 222 static void ath10k_fw_stats_peers_free(struct list_head *head) 223 { 224 struct ath10k_fw_stats_peer *i, *tmp; 225 226 list_for_each_entry_safe(i, tmp, head, list) { 227 list_del(&i->list); 228 kfree(i); 229 } 230 } 231 232 static void ath10k_fw_extd_stats_peers_free(struct list_head *head) 233 { 234 struct ath10k_fw_extd_stats_peer *i, *tmp; 235 236 list_for_each_entry_safe(i, tmp, head, list) { 237 list_del(&i->list); 238 kfree(i); 239 } 240 } 241 242 static void ath10k_debug_fw_stats_reset(struct ath10k *ar) 243 { 244 spin_lock_bh(&ar->data_lock); 245 ar->debug.fw_stats_done = false; 246 ar->debug.fw_stats.extended = false; 247 ath10k_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs); 248 ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs); 249 ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers); 250 ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd); 251 spin_unlock_bh(&ar->data_lock); 252 } 253 254 void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb) 255 { 256 struct ath10k_fw_stats stats = {}; 257 bool is_start, is_started, is_end; 258 size_t num_peers; 259 size_t num_vdevs; 260 int ret; 261 262 INIT_LIST_HEAD(&stats.pdevs); 263 INIT_LIST_HEAD(&stats.vdevs); 264 INIT_LIST_HEAD(&stats.peers); 265 INIT_LIST_HEAD(&stats.peers_extd); 266 267 spin_lock_bh(&ar->data_lock); 268 ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats); 269 if (ret) { 270 ath10k_warn(ar, "failed to pull fw stats: %d\n", ret); 271 goto free; 272 } 273 274 /* Stat data may exceed htc-wmi buffer limit. In such case firmware 275 * splits the stats data and delivers it in a ping-pong fashion of 276 * request cmd-update event. 277 * 278 * However there is no explicit end-of-data. Instead start-of-data is 279 * used as an implicit one. This works as follows: 280 * a) discard stat update events until one with pdev stats is 281 * delivered - this skips session started at end of (b) 282 * b) consume stat update events until another one with pdev stats is 283 * delivered which is treated as end-of-data and is itself discarded 284 */ 285 if (ath10k_peer_stats_enabled(ar)) 286 ath10k_sta_update_rx_duration(ar, &stats); 287 288 if (ar->debug.fw_stats_done) { 289 if (!ath10k_peer_stats_enabled(ar)) 290 ath10k_warn(ar, "received unsolicited stats update event\n"); 291 292 goto free; 293 } 294 295 num_peers = ath10k_wmi_fw_stats_num_peers(&ar->debug.fw_stats.peers); 296 num_vdevs = ath10k_wmi_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs); 297 is_start = (list_empty(&ar->debug.fw_stats.pdevs) && 298 !list_empty(&stats.pdevs)); 299 is_end = (!list_empty(&ar->debug.fw_stats.pdevs) && 300 !list_empty(&stats.pdevs)); 301 302 if (is_start) 303 list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs); 304 305 if (is_end) 306 ar->debug.fw_stats_done = true; 307 308 if (stats.extended) 309 ar->debug.fw_stats.extended = true; 310 311 is_started = !list_empty(&ar->debug.fw_stats.pdevs); 312 313 if (is_started && !is_end) { 314 if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) { 315 /* Although this is unlikely impose a sane limit to 316 * prevent firmware from DoS-ing the host. 317 */ 318 ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers); 319 ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd); 320 ath10k_warn(ar, "dropping fw peer stats\n"); 321 goto free; 322 } 323 324 if (num_vdevs >= BITS_PER_LONG) { 325 ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs); 326 ath10k_warn(ar, "dropping fw vdev stats\n"); 327 goto free; 328 } 329 330 if (!list_empty(&stats.peers)) 331 list_splice_tail_init(&stats.peers_extd, 332 &ar->debug.fw_stats.peers_extd); 333 334 list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers); 335 list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs); 336 } 337 338 complete(&ar->debug.fw_stats_complete); 339 340 free: 341 /* In some cases lists have been spliced and cleared. Free up 342 * resources if that is not the case. 343 */ 344 ath10k_fw_stats_pdevs_free(&stats.pdevs); 345 ath10k_fw_stats_vdevs_free(&stats.vdevs); 346 ath10k_fw_stats_peers_free(&stats.peers); 347 ath10k_fw_extd_stats_peers_free(&stats.peers_extd); 348 349 spin_unlock_bh(&ar->data_lock); 350 } 351 352 static int ath10k_debug_fw_stats_request(struct ath10k *ar) 353 { 354 unsigned long timeout, time_left; 355 int ret; 356 357 lockdep_assert_held(&ar->conf_mutex); 358 359 timeout = jiffies + msecs_to_jiffies(1 * HZ); 360 361 ath10k_debug_fw_stats_reset(ar); 362 363 for (;;) { 364 if (time_after(jiffies, timeout)) 365 return -ETIMEDOUT; 366 367 reinit_completion(&ar->debug.fw_stats_complete); 368 369 ret = ath10k_wmi_request_stats(ar, ar->fw_stats_req_mask); 370 if (ret) { 371 ath10k_warn(ar, "could not request stats (%d)\n", ret); 372 return ret; 373 } 374 375 time_left = 376 wait_for_completion_timeout(&ar->debug.fw_stats_complete, 377 1 * HZ); 378 if (!time_left) 379 return -ETIMEDOUT; 380 381 spin_lock_bh(&ar->data_lock); 382 if (ar->debug.fw_stats_done) { 383 spin_unlock_bh(&ar->data_lock); 384 break; 385 } 386 spin_unlock_bh(&ar->data_lock); 387 } 388 389 return 0; 390 } 391 392 static int ath10k_fw_stats_open(struct inode *inode, struct file *file) 393 { 394 struct ath10k *ar = inode->i_private; 395 void *buf = NULL; 396 int ret; 397 398 mutex_lock(&ar->conf_mutex); 399 400 if (ar->state != ATH10K_STATE_ON) { 401 ret = -ENETDOWN; 402 goto err_unlock; 403 } 404 405 buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE); 406 if (!buf) { 407 ret = -ENOMEM; 408 goto err_unlock; 409 } 410 411 ret = ath10k_debug_fw_stats_request(ar); 412 if (ret) { 413 ath10k_warn(ar, "failed to request fw stats: %d\n", ret); 414 goto err_free; 415 } 416 417 ret = ath10k_wmi_fw_stats_fill(ar, &ar->debug.fw_stats, buf); 418 if (ret) { 419 ath10k_warn(ar, "failed to fill fw stats: %d\n", ret); 420 goto err_free; 421 } 422 423 file->private_data = buf; 424 425 mutex_unlock(&ar->conf_mutex); 426 return 0; 427 428 err_free: 429 vfree(buf); 430 431 err_unlock: 432 mutex_unlock(&ar->conf_mutex); 433 return ret; 434 } 435 436 static int ath10k_fw_stats_release(struct inode *inode, struct file *file) 437 { 438 vfree(file->private_data); 439 440 return 0; 441 } 442 443 static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf, 444 size_t count, loff_t *ppos) 445 { 446 const char *buf = file->private_data; 447 size_t len = strlen(buf); 448 449 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 450 } 451 452 static const struct file_operations fops_fw_stats = { 453 .open = ath10k_fw_stats_open, 454 .release = ath10k_fw_stats_release, 455 .read = ath10k_fw_stats_read, 456 .owner = THIS_MODULE, 457 .llseek = default_llseek, 458 }; 459 460 static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file, 461 char __user *user_buf, 462 size_t count, loff_t *ppos) 463 { 464 struct ath10k *ar = file->private_data; 465 int ret; 466 size_t len = 0, buf_len = 500; 467 char *buf; 468 469 buf = kmalloc(buf_len, GFP_KERNEL); 470 if (!buf) 471 return -ENOMEM; 472 473 spin_lock_bh(&ar->data_lock); 474 475 len += scnprintf(buf + len, buf_len - len, 476 "fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter); 477 len += scnprintf(buf + len, buf_len - len, 478 "fw_warm_reset_counter\t\t%d\n", 479 ar->stats.fw_warm_reset_counter); 480 len += scnprintf(buf + len, buf_len - len, 481 "fw_cold_reset_counter\t\t%d\n", 482 ar->stats.fw_cold_reset_counter); 483 484 spin_unlock_bh(&ar->data_lock); 485 486 ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); 487 488 kfree(buf); 489 490 return ret; 491 } 492 493 static const struct file_operations fops_fw_reset_stats = { 494 .open = simple_open, 495 .read = ath10k_debug_fw_reset_stats_read, 496 .owner = THIS_MODULE, 497 .llseek = default_llseek, 498 }; 499 500 /* This is a clean assert crash in firmware. */ 501 static int ath10k_debug_fw_assert(struct ath10k *ar) 502 { 503 struct wmi_vdev_install_key_cmd *cmd; 504 struct sk_buff *skb; 505 506 skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16); 507 if (!skb) 508 return -ENOMEM; 509 510 cmd = (struct wmi_vdev_install_key_cmd *)skb->data; 511 memset(cmd, 0, sizeof(*cmd)); 512 513 /* big enough number so that firmware asserts */ 514 cmd->vdev_id = __cpu_to_le32(0x7ffe); 515 516 return ath10k_wmi_cmd_send(ar, skb, 517 ar->wmi.cmd->vdev_install_key_cmdid); 518 } 519 520 static ssize_t ath10k_read_simulate_fw_crash(struct file *file, 521 char __user *user_buf, 522 size_t count, loff_t *ppos) 523 { 524 const char buf[] = 525 "To simulate firmware crash write one of the keywords to this file:\n" 526 "`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n" 527 "`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n" 528 "`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n" 529 "`hw-restart` - this will simply queue hw restart without fw/hw actually crashing.\n"; 530 531 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); 532 } 533 534 /* Simulate firmware crash: 535 * 'soft': Call wmi command causing firmware hang. This firmware hang is 536 * recoverable by warm firmware reset. 537 * 'hard': Force firmware crash by setting any vdev parameter for not allowed 538 * vdev id. This is hard firmware crash because it is recoverable only by cold 539 * firmware reset. 540 */ 541 static ssize_t ath10k_write_simulate_fw_crash(struct file *file, 542 const char __user *user_buf, 543 size_t count, loff_t *ppos) 544 { 545 struct ath10k *ar = file->private_data; 546 char buf[32] = {0}; 547 ssize_t rc; 548 int ret; 549 550 /* filter partial writes and invalid commands */ 551 if (*ppos != 0 || count >= sizeof(buf) || count == 0) 552 return -EINVAL; 553 554 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); 555 if (rc < 0) 556 return rc; 557 558 /* drop the possible '\n' from the end */ 559 if (buf[*ppos - 1] == '\n') 560 buf[*ppos - 1] = '\0'; 561 562 mutex_lock(&ar->conf_mutex); 563 564 if (ar->state != ATH10K_STATE_ON && 565 ar->state != ATH10K_STATE_RESTARTED) { 566 ret = -ENETDOWN; 567 goto exit; 568 } 569 570 if (!strcmp(buf, "soft")) { 571 ath10k_info(ar, "simulating soft firmware crash\n"); 572 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0); 573 } else if (!strcmp(buf, "hard")) { 574 ath10k_info(ar, "simulating hard firmware crash\n"); 575 /* 0x7fff is vdev id, and it is always out of range for all 576 * firmware variants in order to force a firmware crash. 577 */ 578 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff, 579 ar->wmi.vdev_param->rts_threshold, 580 0); 581 } else if (!strcmp(buf, "assert")) { 582 ath10k_info(ar, "simulating firmware assert crash\n"); 583 ret = ath10k_debug_fw_assert(ar); 584 } else if (!strcmp(buf, "hw-restart")) { 585 ath10k_info(ar, "user requested hw restart\n"); 586 queue_work(ar->workqueue, &ar->restart_work); 587 ret = 0; 588 } else { 589 ret = -EINVAL; 590 goto exit; 591 } 592 593 if (ret) { 594 ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret); 595 goto exit; 596 } 597 598 ret = count; 599 600 exit: 601 mutex_unlock(&ar->conf_mutex); 602 return ret; 603 } 604 605 static const struct file_operations fops_simulate_fw_crash = { 606 .read = ath10k_read_simulate_fw_crash, 607 .write = ath10k_write_simulate_fw_crash, 608 .open = simple_open, 609 .owner = THIS_MODULE, 610 .llseek = default_llseek, 611 }; 612 613 static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf, 614 size_t count, loff_t *ppos) 615 { 616 struct ath10k *ar = file->private_data; 617 size_t len; 618 char buf[50]; 619 620 len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->bus_param.chip_id); 621 622 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 623 } 624 625 static const struct file_operations fops_chip_id = { 626 .read = ath10k_read_chip_id, 627 .open = simple_open, 628 .owner = THIS_MODULE, 629 .llseek = default_llseek, 630 }; 631 632 static ssize_t ath10k_reg_addr_read(struct file *file, 633 char __user *user_buf, 634 size_t count, loff_t *ppos) 635 { 636 struct ath10k *ar = file->private_data; 637 u8 buf[32]; 638 size_t len = 0; 639 u32 reg_addr; 640 641 mutex_lock(&ar->conf_mutex); 642 reg_addr = ar->debug.reg_addr; 643 mutex_unlock(&ar->conf_mutex); 644 645 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", reg_addr); 646 647 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 648 } 649 650 static ssize_t ath10k_reg_addr_write(struct file *file, 651 const char __user *user_buf, 652 size_t count, loff_t *ppos) 653 { 654 struct ath10k *ar = file->private_data; 655 u32 reg_addr; 656 int ret; 657 658 ret = kstrtou32_from_user(user_buf, count, 0, ®_addr); 659 if (ret) 660 return ret; 661 662 if (!IS_ALIGNED(reg_addr, 4)) 663 return -EFAULT; 664 665 mutex_lock(&ar->conf_mutex); 666 ar->debug.reg_addr = reg_addr; 667 mutex_unlock(&ar->conf_mutex); 668 669 return count; 670 } 671 672 static const struct file_operations fops_reg_addr = { 673 .read = ath10k_reg_addr_read, 674 .write = ath10k_reg_addr_write, 675 .open = simple_open, 676 .owner = THIS_MODULE, 677 .llseek = default_llseek, 678 }; 679 680 static ssize_t ath10k_reg_value_read(struct file *file, 681 char __user *user_buf, 682 size_t count, loff_t *ppos) 683 { 684 struct ath10k *ar = file->private_data; 685 u8 buf[48]; 686 size_t len; 687 u32 reg_addr, reg_val; 688 int ret; 689 690 mutex_lock(&ar->conf_mutex); 691 692 if (ar->state != ATH10K_STATE_ON && 693 ar->state != ATH10K_STATE_UTF) { 694 ret = -ENETDOWN; 695 goto exit; 696 } 697 698 reg_addr = ar->debug.reg_addr; 699 700 reg_val = ath10k_hif_read32(ar, reg_addr); 701 len = scnprintf(buf, sizeof(buf), "0x%08x:0x%08x\n", reg_addr, reg_val); 702 703 ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); 704 705 exit: 706 mutex_unlock(&ar->conf_mutex); 707 708 return ret; 709 } 710 711 static ssize_t ath10k_reg_value_write(struct file *file, 712 const char __user *user_buf, 713 size_t count, loff_t *ppos) 714 { 715 struct ath10k *ar = file->private_data; 716 u32 reg_addr, reg_val; 717 int ret; 718 719 mutex_lock(&ar->conf_mutex); 720 721 if (ar->state != ATH10K_STATE_ON && 722 ar->state != ATH10K_STATE_UTF) { 723 ret = -ENETDOWN; 724 goto exit; 725 } 726 727 reg_addr = ar->debug.reg_addr; 728 729 ret = kstrtou32_from_user(user_buf, count, 0, ®_val); 730 if (ret) 731 goto exit; 732 733 ath10k_hif_write32(ar, reg_addr, reg_val); 734 735 ret = count; 736 737 exit: 738 mutex_unlock(&ar->conf_mutex); 739 740 return ret; 741 } 742 743 static const struct file_operations fops_reg_value = { 744 .read = ath10k_reg_value_read, 745 .write = ath10k_reg_value_write, 746 .open = simple_open, 747 .owner = THIS_MODULE, 748 .llseek = default_llseek, 749 }; 750 751 static ssize_t ath10k_mem_value_read(struct file *file, 752 char __user *user_buf, 753 size_t count, loff_t *ppos) 754 { 755 struct ath10k *ar = file->private_data; 756 u8 *buf; 757 int ret; 758 759 if (*ppos < 0) 760 return -EINVAL; 761 762 if (!count) 763 return 0; 764 765 mutex_lock(&ar->conf_mutex); 766 767 buf = vmalloc(count); 768 if (!buf) { 769 ret = -ENOMEM; 770 goto exit; 771 } 772 773 if (ar->state != ATH10K_STATE_ON && 774 ar->state != ATH10K_STATE_UTF) { 775 ret = -ENETDOWN; 776 goto exit; 777 } 778 779 ret = ath10k_hif_diag_read(ar, *ppos, buf, count); 780 if (ret) { 781 ath10k_warn(ar, "failed to read address 0x%08x via diagnose window fnrom debugfs: %d\n", 782 (u32)(*ppos), ret); 783 goto exit; 784 } 785 786 ret = copy_to_user(user_buf, buf, count); 787 if (ret) { 788 ret = -EFAULT; 789 goto exit; 790 } 791 792 count -= ret; 793 *ppos += count; 794 ret = count; 795 796 exit: 797 vfree(buf); 798 mutex_unlock(&ar->conf_mutex); 799 800 return ret; 801 } 802 803 static ssize_t ath10k_mem_value_write(struct file *file, 804 const char __user *user_buf, 805 size_t count, loff_t *ppos) 806 { 807 struct ath10k *ar = file->private_data; 808 u8 *buf; 809 int ret; 810 811 if (*ppos < 0) 812 return -EINVAL; 813 814 if (!count) 815 return 0; 816 817 mutex_lock(&ar->conf_mutex); 818 819 buf = vmalloc(count); 820 if (!buf) { 821 ret = -ENOMEM; 822 goto exit; 823 } 824 825 if (ar->state != ATH10K_STATE_ON && 826 ar->state != ATH10K_STATE_UTF) { 827 ret = -ENETDOWN; 828 goto exit; 829 } 830 831 ret = copy_from_user(buf, user_buf, count); 832 if (ret) { 833 ret = -EFAULT; 834 goto exit; 835 } 836 837 ret = ath10k_hif_diag_write(ar, *ppos, buf, count); 838 if (ret) { 839 ath10k_warn(ar, "failed to write address 0x%08x via diagnose window from debugfs: %d\n", 840 (u32)(*ppos), ret); 841 goto exit; 842 } 843 844 *ppos += count; 845 ret = count; 846 847 exit: 848 vfree(buf); 849 mutex_unlock(&ar->conf_mutex); 850 851 return ret; 852 } 853 854 static const struct file_operations fops_mem_value = { 855 .read = ath10k_mem_value_read, 856 .write = ath10k_mem_value_write, 857 .open = simple_open, 858 .owner = THIS_MODULE, 859 .llseek = default_llseek, 860 }; 861 862 static int ath10k_debug_htt_stats_req(struct ath10k *ar) 863 { 864 u64 cookie; 865 int ret; 866 867 lockdep_assert_held(&ar->conf_mutex); 868 869 if (ar->debug.htt_stats_mask == 0) 870 /* htt stats are disabled */ 871 return 0; 872 873 if (ar->state != ATH10K_STATE_ON) 874 return 0; 875 876 cookie = get_jiffies_64(); 877 878 ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask, 879 ar->debug.reset_htt_stats, cookie); 880 if (ret) { 881 ath10k_warn(ar, "failed to send htt stats request: %d\n", ret); 882 return ret; 883 } 884 885 queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork, 886 msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL)); 887 888 return 0; 889 } 890 891 static void ath10k_debug_htt_stats_dwork(struct work_struct *work) 892 { 893 struct ath10k *ar = container_of(work, struct ath10k, 894 debug.htt_stats_dwork.work); 895 896 mutex_lock(&ar->conf_mutex); 897 898 ath10k_debug_htt_stats_req(ar); 899 900 mutex_unlock(&ar->conf_mutex); 901 } 902 903 static ssize_t ath10k_read_htt_stats_mask(struct file *file, 904 char __user *user_buf, 905 size_t count, loff_t *ppos) 906 { 907 struct ath10k *ar = file->private_data; 908 char buf[32]; 909 size_t len; 910 911 len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask); 912 913 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 914 } 915 916 static ssize_t ath10k_write_htt_stats_mask(struct file *file, 917 const char __user *user_buf, 918 size_t count, loff_t *ppos) 919 { 920 struct ath10k *ar = file->private_data; 921 unsigned long mask; 922 int ret; 923 924 ret = kstrtoul_from_user(user_buf, count, 0, &mask); 925 if (ret) 926 return ret; 927 928 /* max 17 bit masks (for now) */ 929 if (mask > HTT_STATS_BIT_MASK) 930 return -E2BIG; 931 932 mutex_lock(&ar->conf_mutex); 933 934 ar->debug.htt_stats_mask = mask; 935 936 ret = ath10k_debug_htt_stats_req(ar); 937 if (ret) 938 goto out; 939 940 ret = count; 941 942 out: 943 mutex_unlock(&ar->conf_mutex); 944 945 return ret; 946 } 947 948 static const struct file_operations fops_htt_stats_mask = { 949 .read = ath10k_read_htt_stats_mask, 950 .write = ath10k_write_htt_stats_mask, 951 .open = simple_open, 952 .owner = THIS_MODULE, 953 .llseek = default_llseek, 954 }; 955 956 static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file, 957 char __user *user_buf, 958 size_t count, loff_t *ppos) 959 { 960 struct ath10k *ar = file->private_data; 961 char buf[64]; 962 u8 amsdu, ampdu; 963 size_t len; 964 965 mutex_lock(&ar->conf_mutex); 966 967 amsdu = ar->htt.max_num_amsdu; 968 ampdu = ar->htt.max_num_ampdu; 969 mutex_unlock(&ar->conf_mutex); 970 971 len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu); 972 973 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 974 } 975 976 static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file, 977 const char __user *user_buf, 978 size_t count, loff_t *ppos) 979 { 980 struct ath10k *ar = file->private_data; 981 int res; 982 char buf[64] = {0}; 983 unsigned int amsdu, ampdu; 984 985 res = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, 986 user_buf, count); 987 if (res <= 0) 988 return res; 989 990 res = sscanf(buf, "%u %u", &amsdu, &du); 991 992 if (res != 2) 993 return -EINVAL; 994 995 mutex_lock(&ar->conf_mutex); 996 997 res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu); 998 if (res) 999 goto out; 1000 1001 res = count; 1002 ar->htt.max_num_amsdu = amsdu; 1003 ar->htt.max_num_ampdu = ampdu; 1004 1005 out: 1006 mutex_unlock(&ar->conf_mutex); 1007 return res; 1008 } 1009 1010 static const struct file_operations fops_htt_max_amsdu_ampdu = { 1011 .read = ath10k_read_htt_max_amsdu_ampdu, 1012 .write = ath10k_write_htt_max_amsdu_ampdu, 1013 .open = simple_open, 1014 .owner = THIS_MODULE, 1015 .llseek = default_llseek, 1016 }; 1017 1018 static ssize_t ath10k_read_fw_dbglog(struct file *file, 1019 char __user *user_buf, 1020 size_t count, loff_t *ppos) 1021 { 1022 struct ath10k *ar = file->private_data; 1023 size_t len; 1024 char buf[96]; 1025 1026 len = scnprintf(buf, sizeof(buf), "0x%16llx %u\n", 1027 ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level); 1028 1029 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1030 } 1031 1032 static ssize_t ath10k_write_fw_dbglog(struct file *file, 1033 const char __user *user_buf, 1034 size_t count, loff_t *ppos) 1035 { 1036 struct ath10k *ar = file->private_data; 1037 int ret; 1038 char buf[96] = {0}; 1039 unsigned int log_level; 1040 u64 mask; 1041 1042 ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, 1043 user_buf, count); 1044 if (ret <= 0) 1045 return ret; 1046 1047 ret = sscanf(buf, "%llx %u", &mask, &log_level); 1048 1049 if (!ret) 1050 return -EINVAL; 1051 1052 if (ret == 1) 1053 /* default if user did not specify */ 1054 log_level = ATH10K_DBGLOG_LEVEL_WARN; 1055 1056 mutex_lock(&ar->conf_mutex); 1057 1058 ar->debug.fw_dbglog_mask = mask; 1059 ar->debug.fw_dbglog_level = log_level; 1060 1061 if (ar->state == ATH10K_STATE_ON) { 1062 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask, 1063 ar->debug.fw_dbglog_level); 1064 if (ret) { 1065 ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n", 1066 ret); 1067 goto exit; 1068 } 1069 } 1070 1071 ret = count; 1072 1073 exit: 1074 mutex_unlock(&ar->conf_mutex); 1075 1076 return ret; 1077 } 1078 1079 /* TODO: Would be nice to always support ethtool stats, would need to 1080 * move the stats storage out of ath10k_debug, or always have ath10k_debug 1081 * struct available.. 1082 */ 1083 1084 /* This generally cooresponds to the debugfs fw_stats file */ 1085 static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = { 1086 "tx_pkts_nic", 1087 "tx_bytes_nic", 1088 "rx_pkts_nic", 1089 "rx_bytes_nic", 1090 "d_noise_floor", 1091 "d_cycle_count", 1092 "d_phy_error", 1093 "d_rts_bad", 1094 "d_rts_good", 1095 "d_tx_power", /* in .5 dbM I think */ 1096 "d_rx_crc_err", /* fcs_bad */ 1097 "d_no_beacon", 1098 "d_tx_mpdus_queued", 1099 "d_tx_msdu_queued", 1100 "d_tx_msdu_dropped", 1101 "d_local_enqued", 1102 "d_local_freed", 1103 "d_tx_ppdu_hw_queued", 1104 "d_tx_ppdu_reaped", 1105 "d_tx_fifo_underrun", 1106 "d_tx_ppdu_abort", 1107 "d_tx_mpdu_requed", 1108 "d_tx_excessive_retries", 1109 "d_tx_hw_rate", 1110 "d_tx_dropped_sw_retries", 1111 "d_tx_illegal_rate", 1112 "d_tx_continuous_xretries", 1113 "d_tx_timeout", 1114 "d_tx_mpdu_txop_limit", 1115 "d_pdev_resets", 1116 "d_rx_mid_ppdu_route_change", 1117 "d_rx_status", 1118 "d_rx_extra_frags_ring0", 1119 "d_rx_extra_frags_ring1", 1120 "d_rx_extra_frags_ring2", 1121 "d_rx_extra_frags_ring3", 1122 "d_rx_msdu_htt", 1123 "d_rx_mpdu_htt", 1124 "d_rx_msdu_stack", 1125 "d_rx_mpdu_stack", 1126 "d_rx_phy_err", 1127 "d_rx_phy_err_drops", 1128 "d_rx_mpdu_errors", /* FCS, MIC, ENC */ 1129 "d_fw_crash_count", 1130 "d_fw_warm_reset_count", 1131 "d_fw_cold_reset_count", 1132 }; 1133 1134 #define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats) 1135 1136 void ath10k_debug_get_et_strings(struct ieee80211_hw *hw, 1137 struct ieee80211_vif *vif, 1138 u32 sset, u8 *data) 1139 { 1140 if (sset == ETH_SS_STATS) 1141 memcpy(data, *ath10k_gstrings_stats, 1142 sizeof(ath10k_gstrings_stats)); 1143 } 1144 1145 int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw, 1146 struct ieee80211_vif *vif, int sset) 1147 { 1148 if (sset == ETH_SS_STATS) 1149 return ATH10K_SSTATS_LEN; 1150 1151 return 0; 1152 } 1153 1154 void ath10k_debug_get_et_stats(struct ieee80211_hw *hw, 1155 struct ieee80211_vif *vif, 1156 struct ethtool_stats *stats, u64 *data) 1157 { 1158 struct ath10k *ar = hw->priv; 1159 static const struct ath10k_fw_stats_pdev zero_stats = {}; 1160 const struct ath10k_fw_stats_pdev *pdev_stats; 1161 int i = 0, ret; 1162 1163 mutex_lock(&ar->conf_mutex); 1164 1165 if (ar->state == ATH10K_STATE_ON) { 1166 ret = ath10k_debug_fw_stats_request(ar); 1167 if (ret) { 1168 /* just print a warning and try to use older results */ 1169 ath10k_warn(ar, 1170 "failed to get fw stats for ethtool: %d\n", 1171 ret); 1172 } 1173 } 1174 1175 pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs, 1176 struct ath10k_fw_stats_pdev, 1177 list); 1178 if (!pdev_stats) { 1179 /* no results available so just return zeroes */ 1180 pdev_stats = &zero_stats; 1181 } 1182 1183 spin_lock_bh(&ar->data_lock); 1184 1185 data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */ 1186 data[i++] = 0; /* tx bytes */ 1187 data[i++] = pdev_stats->htt_mpdus; 1188 data[i++] = 0; /* rx bytes */ 1189 data[i++] = pdev_stats->ch_noise_floor; 1190 data[i++] = pdev_stats->cycle_count; 1191 data[i++] = pdev_stats->phy_err_count; 1192 data[i++] = pdev_stats->rts_bad; 1193 data[i++] = pdev_stats->rts_good; 1194 data[i++] = pdev_stats->chan_tx_power; 1195 data[i++] = pdev_stats->fcs_bad; 1196 data[i++] = pdev_stats->no_beacons; 1197 data[i++] = pdev_stats->mpdu_enqued; 1198 data[i++] = pdev_stats->msdu_enqued; 1199 data[i++] = pdev_stats->wmm_drop; 1200 data[i++] = pdev_stats->local_enqued; 1201 data[i++] = pdev_stats->local_freed; 1202 data[i++] = pdev_stats->hw_queued; 1203 data[i++] = pdev_stats->hw_reaped; 1204 data[i++] = pdev_stats->underrun; 1205 data[i++] = pdev_stats->tx_abort; 1206 data[i++] = pdev_stats->mpdus_requed; 1207 data[i++] = pdev_stats->tx_ko; 1208 data[i++] = pdev_stats->data_rc; 1209 data[i++] = pdev_stats->sw_retry_failure; 1210 data[i++] = pdev_stats->illgl_rate_phy_err; 1211 data[i++] = pdev_stats->pdev_cont_xretry; 1212 data[i++] = pdev_stats->pdev_tx_timeout; 1213 data[i++] = pdev_stats->txop_ovf; 1214 data[i++] = pdev_stats->pdev_resets; 1215 data[i++] = pdev_stats->mid_ppdu_route_change; 1216 data[i++] = pdev_stats->status_rcvd; 1217 data[i++] = pdev_stats->r0_frags; 1218 data[i++] = pdev_stats->r1_frags; 1219 data[i++] = pdev_stats->r2_frags; 1220 data[i++] = pdev_stats->r3_frags; 1221 data[i++] = pdev_stats->htt_msdus; 1222 data[i++] = pdev_stats->htt_mpdus; 1223 data[i++] = pdev_stats->loc_msdus; 1224 data[i++] = pdev_stats->loc_mpdus; 1225 data[i++] = pdev_stats->phy_errs; 1226 data[i++] = pdev_stats->phy_err_drop; 1227 data[i++] = pdev_stats->mpdu_errs; 1228 data[i++] = ar->stats.fw_crash_counter; 1229 data[i++] = ar->stats.fw_warm_reset_counter; 1230 data[i++] = ar->stats.fw_cold_reset_counter; 1231 1232 spin_unlock_bh(&ar->data_lock); 1233 1234 mutex_unlock(&ar->conf_mutex); 1235 1236 WARN_ON(i != ATH10K_SSTATS_LEN); 1237 } 1238 1239 static const struct file_operations fops_fw_dbglog = { 1240 .read = ath10k_read_fw_dbglog, 1241 .write = ath10k_write_fw_dbglog, 1242 .open = simple_open, 1243 .owner = THIS_MODULE, 1244 .llseek = default_llseek, 1245 }; 1246 1247 static int ath10k_debug_cal_data_fetch(struct ath10k *ar) 1248 { 1249 u32 hi_addr; 1250 __le32 addr; 1251 int ret; 1252 1253 lockdep_assert_held(&ar->conf_mutex); 1254 1255 if (WARN_ON(ar->hw_params.cal_data_len > ATH10K_DEBUG_CAL_DATA_LEN)) 1256 return -EINVAL; 1257 1258 if (ar->hw_params.cal_data_len == 0) 1259 return -EOPNOTSUPP; 1260 1261 hi_addr = host_interest_item_address(HI_ITEM(hi_board_data)); 1262 1263 ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr)); 1264 if (ret) { 1265 ath10k_warn(ar, "failed to read hi_board_data address: %d\n", 1266 ret); 1267 return ret; 1268 } 1269 1270 ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), ar->debug.cal_data, 1271 ar->hw_params.cal_data_len); 1272 if (ret) { 1273 ath10k_warn(ar, "failed to read calibration data: %d\n", ret); 1274 return ret; 1275 } 1276 1277 return 0; 1278 } 1279 1280 static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file) 1281 { 1282 struct ath10k *ar = inode->i_private; 1283 1284 mutex_lock(&ar->conf_mutex); 1285 1286 if (ar->state == ATH10K_STATE_ON || 1287 ar->state == ATH10K_STATE_UTF) { 1288 ath10k_debug_cal_data_fetch(ar); 1289 } 1290 1291 file->private_data = ar; 1292 mutex_unlock(&ar->conf_mutex); 1293 1294 return 0; 1295 } 1296 1297 static ssize_t ath10k_debug_cal_data_read(struct file *file, 1298 char __user *user_buf, 1299 size_t count, loff_t *ppos) 1300 { 1301 struct ath10k *ar = file->private_data; 1302 1303 mutex_lock(&ar->conf_mutex); 1304 1305 count = simple_read_from_buffer(user_buf, count, ppos, 1306 ar->debug.cal_data, 1307 ar->hw_params.cal_data_len); 1308 1309 mutex_unlock(&ar->conf_mutex); 1310 1311 return count; 1312 } 1313 1314 static ssize_t ath10k_write_ani_enable(struct file *file, 1315 const char __user *user_buf, 1316 size_t count, loff_t *ppos) 1317 { 1318 struct ath10k *ar = file->private_data; 1319 int ret; 1320 u8 enable; 1321 1322 if (kstrtou8_from_user(user_buf, count, 0, &enable)) 1323 return -EINVAL; 1324 1325 mutex_lock(&ar->conf_mutex); 1326 1327 if (ar->ani_enabled == enable) { 1328 ret = count; 1329 goto exit; 1330 } 1331 1332 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->ani_enable, 1333 enable); 1334 if (ret) { 1335 ath10k_warn(ar, "ani_enable failed from debugfs: %d\n", ret); 1336 goto exit; 1337 } 1338 ar->ani_enabled = enable; 1339 1340 ret = count; 1341 1342 exit: 1343 mutex_unlock(&ar->conf_mutex); 1344 1345 return ret; 1346 } 1347 1348 static ssize_t ath10k_read_ani_enable(struct file *file, char __user *user_buf, 1349 size_t count, loff_t *ppos) 1350 { 1351 struct ath10k *ar = file->private_data; 1352 size_t len; 1353 char buf[32]; 1354 1355 len = scnprintf(buf, sizeof(buf), "%d\n", ar->ani_enabled); 1356 1357 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1358 } 1359 1360 static const struct file_operations fops_ani_enable = { 1361 .read = ath10k_read_ani_enable, 1362 .write = ath10k_write_ani_enable, 1363 .open = simple_open, 1364 .owner = THIS_MODULE, 1365 .llseek = default_llseek, 1366 }; 1367 1368 static const struct file_operations fops_cal_data = { 1369 .open = ath10k_debug_cal_data_open, 1370 .read = ath10k_debug_cal_data_read, 1371 .owner = THIS_MODULE, 1372 .llseek = default_llseek, 1373 }; 1374 1375 static ssize_t ath10k_read_nf_cal_period(struct file *file, 1376 char __user *user_buf, 1377 size_t count, loff_t *ppos) 1378 { 1379 struct ath10k *ar = file->private_data; 1380 size_t len; 1381 char buf[32]; 1382 1383 len = scnprintf(buf, sizeof(buf), "%d\n", ar->debug.nf_cal_period); 1384 1385 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1386 } 1387 1388 static ssize_t ath10k_write_nf_cal_period(struct file *file, 1389 const char __user *user_buf, 1390 size_t count, loff_t *ppos) 1391 { 1392 struct ath10k *ar = file->private_data; 1393 unsigned long period; 1394 int ret; 1395 1396 ret = kstrtoul_from_user(user_buf, count, 0, &period); 1397 if (ret) 1398 return ret; 1399 1400 if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX) 1401 return -EINVAL; 1402 1403 /* there's no way to switch back to the firmware default */ 1404 if (period == 0) 1405 return -EINVAL; 1406 1407 mutex_lock(&ar->conf_mutex); 1408 1409 ar->debug.nf_cal_period = period; 1410 1411 if (ar->state != ATH10K_STATE_ON) { 1412 /* firmware is not running, nothing else to do */ 1413 ret = count; 1414 goto exit; 1415 } 1416 1417 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period, 1418 ar->debug.nf_cal_period); 1419 if (ret) { 1420 ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n", 1421 ret); 1422 goto exit; 1423 } 1424 1425 ret = count; 1426 1427 exit: 1428 mutex_unlock(&ar->conf_mutex); 1429 1430 return ret; 1431 } 1432 1433 static const struct file_operations fops_nf_cal_period = { 1434 .read = ath10k_read_nf_cal_period, 1435 .write = ath10k_write_nf_cal_period, 1436 .open = simple_open, 1437 .owner = THIS_MODULE, 1438 .llseek = default_llseek, 1439 }; 1440 1441 #define ATH10K_TPC_CONFIG_BUF_SIZE (1024 * 1024) 1442 1443 static int ath10k_debug_tpc_stats_request(struct ath10k *ar) 1444 { 1445 int ret; 1446 unsigned long time_left; 1447 1448 lockdep_assert_held(&ar->conf_mutex); 1449 1450 reinit_completion(&ar->debug.tpc_complete); 1451 1452 ret = ath10k_wmi_pdev_get_tpc_config(ar, WMI_TPC_CONFIG_PARAM); 1453 if (ret) { 1454 ath10k_warn(ar, "failed to request tpc config: %d\n", ret); 1455 return ret; 1456 } 1457 1458 time_left = wait_for_completion_timeout(&ar->debug.tpc_complete, 1459 1 * HZ); 1460 if (time_left == 0) 1461 return -ETIMEDOUT; 1462 1463 return 0; 1464 } 1465 1466 void ath10k_debug_tpc_stats_process(struct ath10k *ar, 1467 struct ath10k_tpc_stats *tpc_stats) 1468 { 1469 spin_lock_bh(&ar->data_lock); 1470 1471 kfree(ar->debug.tpc_stats); 1472 ar->debug.tpc_stats = tpc_stats; 1473 complete(&ar->debug.tpc_complete); 1474 1475 spin_unlock_bh(&ar->data_lock); 1476 } 1477 1478 void 1479 ath10k_debug_tpc_stats_final_process(struct ath10k *ar, 1480 struct ath10k_tpc_stats_final *tpc_stats) 1481 { 1482 spin_lock_bh(&ar->data_lock); 1483 1484 kfree(ar->debug.tpc_stats_final); 1485 ar->debug.tpc_stats_final = tpc_stats; 1486 complete(&ar->debug.tpc_complete); 1487 1488 spin_unlock_bh(&ar->data_lock); 1489 } 1490 1491 static void ath10k_tpc_stats_print(struct ath10k_tpc_stats *tpc_stats, 1492 unsigned int j, char *buf, size_t *len) 1493 { 1494 int i; 1495 size_t buf_len; 1496 static const char table_str[][5] = { "CDD", 1497 "STBC", 1498 "TXBF" }; 1499 static const char pream_str[][6] = { "CCK", 1500 "OFDM", 1501 "HT20", 1502 "HT40", 1503 "VHT20", 1504 "VHT40", 1505 "VHT80", 1506 "HTCUP" }; 1507 1508 buf_len = ATH10K_TPC_CONFIG_BUF_SIZE; 1509 *len += scnprintf(buf + *len, buf_len - *len, 1510 "********************************\n"); 1511 *len += scnprintf(buf + *len, buf_len - *len, 1512 "******************* %s POWER TABLE ****************\n", 1513 table_str[j]); 1514 *len += scnprintf(buf + *len, buf_len - *len, 1515 "********************************\n"); 1516 *len += scnprintf(buf + *len, buf_len - *len, 1517 "No. Preamble Rate_code "); 1518 1519 for (i = 0; i < tpc_stats->num_tx_chain; i++) 1520 *len += scnprintf(buf + *len, buf_len - *len, 1521 "tpc_value%d ", i); 1522 1523 *len += scnprintf(buf + *len, buf_len - *len, "\n"); 1524 1525 for (i = 0; i < tpc_stats->rate_max; i++) { 1526 *len += scnprintf(buf + *len, buf_len - *len, 1527 "%8d %s 0x%2x %s\n", i, 1528 pream_str[tpc_stats->tpc_table[j].pream_idx[i]], 1529 tpc_stats->tpc_table[j].rate_code[i], 1530 tpc_stats->tpc_table[j].tpc_value[i]); 1531 } 1532 1533 *len += scnprintf(buf + *len, buf_len - *len, 1534 "***********************************\n"); 1535 } 1536 1537 static void ath10k_tpc_stats_fill(struct ath10k *ar, 1538 struct ath10k_tpc_stats *tpc_stats, 1539 char *buf) 1540 { 1541 int j; 1542 size_t len, buf_len; 1543 1544 len = 0; 1545 buf_len = ATH10K_TPC_CONFIG_BUF_SIZE; 1546 1547 spin_lock_bh(&ar->data_lock); 1548 1549 if (!tpc_stats) { 1550 ath10k_warn(ar, "failed to get tpc stats\n"); 1551 goto unlock; 1552 } 1553 1554 len += scnprintf(buf + len, buf_len - len, "\n"); 1555 len += scnprintf(buf + len, buf_len - len, 1556 "*************************************\n"); 1557 len += scnprintf(buf + len, buf_len - len, 1558 "TPC config for channel %4d mode %d\n", 1559 tpc_stats->chan_freq, 1560 tpc_stats->phy_mode); 1561 len += scnprintf(buf + len, buf_len - len, 1562 "*************************************\n"); 1563 len += scnprintf(buf + len, buf_len - len, 1564 "CTL = 0x%2x Reg. Domain = %2d\n", 1565 tpc_stats->ctl, 1566 tpc_stats->reg_domain); 1567 len += scnprintf(buf + len, buf_len - len, 1568 "Antenna Gain = %2d Reg. Max Antenna Gain = %2d\n", 1569 tpc_stats->twice_antenna_gain, 1570 tpc_stats->twice_antenna_reduction); 1571 len += scnprintf(buf + len, buf_len - len, 1572 "Power Limit = %2d Reg. Max Power = %2d\n", 1573 tpc_stats->power_limit, 1574 tpc_stats->twice_max_rd_power / 2); 1575 len += scnprintf(buf + len, buf_len - len, 1576 "Num tx chains = %2d Num supported rates = %2d\n", 1577 tpc_stats->num_tx_chain, 1578 tpc_stats->rate_max); 1579 1580 for (j = 0; j < WMI_TPC_FLAG; j++) { 1581 switch (j) { 1582 case WMI_TPC_TABLE_TYPE_CDD: 1583 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) { 1584 len += scnprintf(buf + len, buf_len - len, 1585 "CDD not supported\n"); 1586 break; 1587 } 1588 1589 ath10k_tpc_stats_print(tpc_stats, j, buf, &len); 1590 break; 1591 case WMI_TPC_TABLE_TYPE_STBC: 1592 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) { 1593 len += scnprintf(buf + len, buf_len - len, 1594 "STBC not supported\n"); 1595 break; 1596 } 1597 1598 ath10k_tpc_stats_print(tpc_stats, j, buf, &len); 1599 break; 1600 case WMI_TPC_TABLE_TYPE_TXBF: 1601 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) { 1602 len += scnprintf(buf + len, buf_len - len, 1603 "TXBF not supported\n***************************\n"); 1604 break; 1605 } 1606 1607 ath10k_tpc_stats_print(tpc_stats, j, buf, &len); 1608 break; 1609 default: 1610 len += scnprintf(buf + len, buf_len - len, 1611 "Invalid Type\n"); 1612 break; 1613 } 1614 } 1615 1616 unlock: 1617 spin_unlock_bh(&ar->data_lock); 1618 1619 if (len >= buf_len) 1620 buf[len - 1] = 0; 1621 else 1622 buf[len] = 0; 1623 } 1624 1625 static int ath10k_tpc_stats_open(struct inode *inode, struct file *file) 1626 { 1627 struct ath10k *ar = inode->i_private; 1628 void *buf = NULL; 1629 int ret; 1630 1631 mutex_lock(&ar->conf_mutex); 1632 1633 if (ar->state != ATH10K_STATE_ON) { 1634 ret = -ENETDOWN; 1635 goto err_unlock; 1636 } 1637 1638 buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE); 1639 if (!buf) { 1640 ret = -ENOMEM; 1641 goto err_unlock; 1642 } 1643 1644 ret = ath10k_debug_tpc_stats_request(ar); 1645 if (ret) { 1646 ath10k_warn(ar, "failed to request tpc config stats: %d\n", 1647 ret); 1648 goto err_free; 1649 } 1650 1651 ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf); 1652 file->private_data = buf; 1653 1654 mutex_unlock(&ar->conf_mutex); 1655 return 0; 1656 1657 err_free: 1658 vfree(buf); 1659 1660 err_unlock: 1661 mutex_unlock(&ar->conf_mutex); 1662 return ret; 1663 } 1664 1665 static int ath10k_tpc_stats_release(struct inode *inode, struct file *file) 1666 { 1667 vfree(file->private_data); 1668 1669 return 0; 1670 } 1671 1672 static ssize_t ath10k_tpc_stats_read(struct file *file, char __user *user_buf, 1673 size_t count, loff_t *ppos) 1674 { 1675 const char *buf = file->private_data; 1676 size_t len = strlen(buf); 1677 1678 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1679 } 1680 1681 static const struct file_operations fops_tpc_stats = { 1682 .open = ath10k_tpc_stats_open, 1683 .release = ath10k_tpc_stats_release, 1684 .read = ath10k_tpc_stats_read, 1685 .owner = THIS_MODULE, 1686 .llseek = default_llseek, 1687 }; 1688 1689 int ath10k_debug_start(struct ath10k *ar) 1690 { 1691 int ret; 1692 1693 lockdep_assert_held(&ar->conf_mutex); 1694 1695 ret = ath10k_debug_htt_stats_req(ar); 1696 if (ret) 1697 /* continue normally anyway, this isn't serious */ 1698 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n", 1699 ret); 1700 1701 if (ar->debug.fw_dbglog_mask) { 1702 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask, 1703 ATH10K_DBGLOG_LEVEL_WARN); 1704 if (ret) 1705 /* not serious */ 1706 ath10k_warn(ar, "failed to enable dbglog during start: %d", 1707 ret); 1708 } 1709 1710 if (ar->pktlog_filter) { 1711 ret = ath10k_wmi_pdev_pktlog_enable(ar, 1712 ar->pktlog_filter); 1713 if (ret) 1714 /* not serious */ 1715 ath10k_warn(ar, 1716 "failed to enable pktlog filter %x: %d\n", 1717 ar->pktlog_filter, ret); 1718 } else { 1719 ret = ath10k_wmi_pdev_pktlog_disable(ar); 1720 if (ret) 1721 /* not serious */ 1722 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret); 1723 } 1724 1725 if (ar->debug.nf_cal_period && 1726 !test_bit(ATH10K_FW_FEATURE_NON_BMI, 1727 ar->normal_mode_fw.fw_file.fw_features)) { 1728 ret = ath10k_wmi_pdev_set_param(ar, 1729 ar->wmi.pdev_param->cal_period, 1730 ar->debug.nf_cal_period); 1731 if (ret) 1732 /* not serious */ 1733 ath10k_warn(ar, "cal period cfg failed from debug start: %d\n", 1734 ret); 1735 } 1736 1737 return ret; 1738 } 1739 1740 void ath10k_debug_stop(struct ath10k *ar) 1741 { 1742 lockdep_assert_held(&ar->conf_mutex); 1743 1744 if (!test_bit(ATH10K_FW_FEATURE_NON_BMI, 1745 ar->normal_mode_fw.fw_file.fw_features)) 1746 ath10k_debug_cal_data_fetch(ar); 1747 1748 /* Must not use _sync to avoid deadlock, we do that in 1749 * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid 1750 * warning from del_timer(). 1751 */ 1752 if (ar->debug.htt_stats_mask != 0) 1753 cancel_delayed_work(&ar->debug.htt_stats_dwork); 1754 1755 ath10k_wmi_pdev_pktlog_disable(ar); 1756 } 1757 1758 static ssize_t ath10k_write_simulate_radar(struct file *file, 1759 const char __user *user_buf, 1760 size_t count, loff_t *ppos) 1761 { 1762 struct ath10k *ar = file->private_data; 1763 struct ath10k_vif *arvif; 1764 1765 /* Just check for for the first vif alone, as all the vifs will be 1766 * sharing the same channel and if the channel is disabled, all the 1767 * vifs will share the same 'is_started' state. 1768 */ 1769 arvif = list_first_entry(&ar->arvifs, typeof(*arvif), list); 1770 if (!arvif->is_started) 1771 return -EINVAL; 1772 1773 ieee80211_radar_detected(ar->hw); 1774 1775 return count; 1776 } 1777 1778 static const struct file_operations fops_simulate_radar = { 1779 .write = ath10k_write_simulate_radar, 1780 .open = simple_open, 1781 .owner = THIS_MODULE, 1782 .llseek = default_llseek, 1783 }; 1784 1785 #define ATH10K_DFS_STAT(s, p) (\ 1786 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \ 1787 ar->debug.dfs_stats.p)) 1788 1789 #define ATH10K_DFS_POOL_STAT(s, p) (\ 1790 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \ 1791 ar->debug.dfs_pool_stats.p)) 1792 1793 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf, 1794 size_t count, loff_t *ppos) 1795 { 1796 int retval = 0, len = 0; 1797 const int size = 8000; 1798 struct ath10k *ar = file->private_data; 1799 char *buf; 1800 1801 buf = kzalloc(size, GFP_KERNEL); 1802 if (buf == NULL) 1803 return -ENOMEM; 1804 1805 if (!ar->dfs_detector) { 1806 len += scnprintf(buf + len, size - len, "DFS not enabled\n"); 1807 goto exit; 1808 } 1809 1810 ar->debug.dfs_pool_stats = 1811 ar->dfs_detector->get_stats(ar->dfs_detector); 1812 1813 len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n"); 1814 1815 ATH10K_DFS_STAT("reported phy errors", phy_errors); 1816 ATH10K_DFS_STAT("pulse events reported", pulses_total); 1817 ATH10K_DFS_STAT("DFS pulses detected", pulses_detected); 1818 ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded); 1819 ATH10K_DFS_STAT("Radars detected", radar_detected); 1820 1821 len += scnprintf(buf + len, size - len, "Global Pool statistics:\n"); 1822 ATH10K_DFS_POOL_STAT("Pool references", pool_reference); 1823 ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated); 1824 ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error); 1825 ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used); 1826 ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated); 1827 ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error); 1828 ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used); 1829 1830 exit: 1831 if (len > size) 1832 len = size; 1833 1834 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1835 kfree(buf); 1836 1837 return retval; 1838 } 1839 1840 static const struct file_operations fops_dfs_stats = { 1841 .read = ath10k_read_dfs_stats, 1842 .open = simple_open, 1843 .owner = THIS_MODULE, 1844 .llseek = default_llseek, 1845 }; 1846 1847 static ssize_t ath10k_write_pktlog_filter(struct file *file, 1848 const char __user *ubuf, 1849 size_t count, loff_t *ppos) 1850 { 1851 struct ath10k *ar = file->private_data; 1852 u32 filter; 1853 int ret; 1854 1855 if (kstrtouint_from_user(ubuf, count, 0, &filter)) 1856 return -EINVAL; 1857 1858 mutex_lock(&ar->conf_mutex); 1859 1860 if (ar->state != ATH10K_STATE_ON) { 1861 ar->pktlog_filter = filter; 1862 ret = count; 1863 goto out; 1864 } 1865 1866 if (filter == ar->pktlog_filter) { 1867 ret = count; 1868 goto out; 1869 } 1870 1871 if (filter) { 1872 ret = ath10k_wmi_pdev_pktlog_enable(ar, filter); 1873 if (ret) { 1874 ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n", 1875 ar->pktlog_filter, ret); 1876 goto out; 1877 } 1878 } else { 1879 ret = ath10k_wmi_pdev_pktlog_disable(ar); 1880 if (ret) { 1881 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret); 1882 goto out; 1883 } 1884 } 1885 1886 ar->pktlog_filter = filter; 1887 ret = count; 1888 1889 out: 1890 mutex_unlock(&ar->conf_mutex); 1891 return ret; 1892 } 1893 1894 static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf, 1895 size_t count, loff_t *ppos) 1896 { 1897 char buf[32]; 1898 struct ath10k *ar = file->private_data; 1899 int len = 0; 1900 1901 mutex_lock(&ar->conf_mutex); 1902 len = scnprintf(buf, sizeof(buf) - len, "%08x\n", 1903 ar->pktlog_filter); 1904 mutex_unlock(&ar->conf_mutex); 1905 1906 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 1907 } 1908 1909 static const struct file_operations fops_pktlog_filter = { 1910 .read = ath10k_read_pktlog_filter, 1911 .write = ath10k_write_pktlog_filter, 1912 .open = simple_open 1913 }; 1914 1915 static ssize_t ath10k_write_quiet_period(struct file *file, 1916 const char __user *ubuf, 1917 size_t count, loff_t *ppos) 1918 { 1919 struct ath10k *ar = file->private_data; 1920 u32 period; 1921 1922 if (kstrtouint_from_user(ubuf, count, 0, &period)) 1923 return -EINVAL; 1924 1925 if (period < ATH10K_QUIET_PERIOD_MIN) { 1926 ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n", 1927 period); 1928 return -EINVAL; 1929 } 1930 mutex_lock(&ar->conf_mutex); 1931 ar->thermal.quiet_period = period; 1932 ath10k_thermal_set_throttling(ar); 1933 mutex_unlock(&ar->conf_mutex); 1934 1935 return count; 1936 } 1937 1938 static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf, 1939 size_t count, loff_t *ppos) 1940 { 1941 char buf[32]; 1942 struct ath10k *ar = file->private_data; 1943 int len = 0; 1944 1945 mutex_lock(&ar->conf_mutex); 1946 len = scnprintf(buf, sizeof(buf) - len, "%d\n", 1947 ar->thermal.quiet_period); 1948 mutex_unlock(&ar->conf_mutex); 1949 1950 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 1951 } 1952 1953 static const struct file_operations fops_quiet_period = { 1954 .read = ath10k_read_quiet_period, 1955 .write = ath10k_write_quiet_period, 1956 .open = simple_open 1957 }; 1958 1959 static ssize_t ath10k_write_btcoex(struct file *file, 1960 const char __user *ubuf, 1961 size_t count, loff_t *ppos) 1962 { 1963 struct ath10k *ar = file->private_data; 1964 char buf[32]; 1965 size_t buf_size; 1966 int ret; 1967 bool val; 1968 u32 pdev_param; 1969 1970 buf_size = min(count, (sizeof(buf) - 1)); 1971 if (copy_from_user(buf, ubuf, buf_size)) 1972 return -EFAULT; 1973 1974 buf[buf_size] = '\0'; 1975 1976 if (strtobool(buf, &val) != 0) 1977 return -EINVAL; 1978 1979 mutex_lock(&ar->conf_mutex); 1980 1981 if (ar->state != ATH10K_STATE_ON && 1982 ar->state != ATH10K_STATE_RESTARTED) { 1983 ret = -ENETDOWN; 1984 goto exit; 1985 } 1986 1987 if (!(test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags) ^ val)) { 1988 ret = count; 1989 goto exit; 1990 } 1991 1992 pdev_param = ar->wmi.pdev_param->enable_btcoex; 1993 if (test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM, 1994 ar->running_fw->fw_file.fw_features)) { 1995 ret = ath10k_wmi_pdev_set_param(ar, pdev_param, val); 1996 if (ret) { 1997 ath10k_warn(ar, "failed to enable btcoex: %d\n", ret); 1998 ret = count; 1999 goto exit; 2000 } 2001 } else { 2002 ath10k_info(ar, "restarting firmware due to btcoex change"); 2003 queue_work(ar->workqueue, &ar->restart_work); 2004 } 2005 2006 if (val) 2007 set_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags); 2008 else 2009 clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags); 2010 2011 ret = count; 2012 2013 exit: 2014 mutex_unlock(&ar->conf_mutex); 2015 2016 return ret; 2017 } 2018 2019 static ssize_t ath10k_read_btcoex(struct file *file, char __user *ubuf, 2020 size_t count, loff_t *ppos) 2021 { 2022 char buf[32]; 2023 struct ath10k *ar = file->private_data; 2024 int len = 0; 2025 2026 mutex_lock(&ar->conf_mutex); 2027 len = scnprintf(buf, sizeof(buf) - len, "%d\n", 2028 test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags)); 2029 mutex_unlock(&ar->conf_mutex); 2030 2031 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 2032 } 2033 2034 static const struct file_operations fops_btcoex = { 2035 .read = ath10k_read_btcoex, 2036 .write = ath10k_write_btcoex, 2037 .open = simple_open 2038 }; 2039 2040 static ssize_t ath10k_write_enable_extd_tx_stats(struct file *file, 2041 const char __user *ubuf, 2042 size_t count, loff_t *ppos) 2043 { 2044 struct ath10k *ar = file->private_data; 2045 u32 filter; 2046 int ret; 2047 2048 if (kstrtouint_from_user(ubuf, count, 0, &filter)) 2049 return -EINVAL; 2050 2051 mutex_lock(&ar->conf_mutex); 2052 2053 if (ar->state != ATH10K_STATE_ON) { 2054 ar->debug.enable_extd_tx_stats = filter; 2055 ret = count; 2056 goto out; 2057 } 2058 2059 if (filter == ar->debug.enable_extd_tx_stats) { 2060 ret = count; 2061 goto out; 2062 } 2063 2064 ar->debug.enable_extd_tx_stats = filter; 2065 ret = count; 2066 2067 out: 2068 mutex_unlock(&ar->conf_mutex); 2069 return ret; 2070 } 2071 2072 static ssize_t ath10k_read_enable_extd_tx_stats(struct file *file, 2073 char __user *ubuf, 2074 size_t count, loff_t *ppos) 2075 2076 { 2077 char buf[32]; 2078 struct ath10k *ar = file->private_data; 2079 int len = 0; 2080 2081 mutex_lock(&ar->conf_mutex); 2082 len = scnprintf(buf, sizeof(buf) - len, "%08x\n", 2083 ar->debug.enable_extd_tx_stats); 2084 mutex_unlock(&ar->conf_mutex); 2085 2086 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 2087 } 2088 2089 static const struct file_operations fops_enable_extd_tx_stats = { 2090 .read = ath10k_read_enable_extd_tx_stats, 2091 .write = ath10k_write_enable_extd_tx_stats, 2092 .open = simple_open 2093 }; 2094 2095 static ssize_t ath10k_write_peer_stats(struct file *file, 2096 const char __user *ubuf, 2097 size_t count, loff_t *ppos) 2098 { 2099 struct ath10k *ar = file->private_data; 2100 char buf[32]; 2101 size_t buf_size; 2102 int ret; 2103 bool val; 2104 2105 buf_size = min(count, (sizeof(buf) - 1)); 2106 if (copy_from_user(buf, ubuf, buf_size)) 2107 return -EFAULT; 2108 2109 buf[buf_size] = '\0'; 2110 2111 if (strtobool(buf, &val) != 0) 2112 return -EINVAL; 2113 2114 mutex_lock(&ar->conf_mutex); 2115 2116 if (ar->state != ATH10K_STATE_ON && 2117 ar->state != ATH10K_STATE_RESTARTED) { 2118 ret = -ENETDOWN; 2119 goto exit; 2120 } 2121 2122 if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val)) { 2123 ret = count; 2124 goto exit; 2125 } 2126 2127 if (val) 2128 set_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags); 2129 else 2130 clear_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags); 2131 2132 ath10k_info(ar, "restarting firmware due to Peer stats change"); 2133 2134 queue_work(ar->workqueue, &ar->restart_work); 2135 ret = count; 2136 2137 exit: 2138 mutex_unlock(&ar->conf_mutex); 2139 return ret; 2140 } 2141 2142 static ssize_t ath10k_read_peer_stats(struct file *file, char __user *ubuf, 2143 size_t count, loff_t *ppos) 2144 2145 { 2146 char buf[32]; 2147 struct ath10k *ar = file->private_data; 2148 int len = 0; 2149 2150 mutex_lock(&ar->conf_mutex); 2151 len = scnprintf(buf, sizeof(buf) - len, "%d\n", 2152 test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags)); 2153 mutex_unlock(&ar->conf_mutex); 2154 2155 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 2156 } 2157 2158 static const struct file_operations fops_peer_stats = { 2159 .read = ath10k_read_peer_stats, 2160 .write = ath10k_write_peer_stats, 2161 .open = simple_open 2162 }; 2163 2164 static ssize_t ath10k_debug_fw_checksums_read(struct file *file, 2165 char __user *user_buf, 2166 size_t count, loff_t *ppos) 2167 { 2168 struct ath10k *ar = file->private_data; 2169 size_t len = 0, buf_len = 4096; 2170 ssize_t ret_cnt; 2171 char *buf; 2172 2173 buf = kzalloc(buf_len, GFP_KERNEL); 2174 if (!buf) 2175 return -ENOMEM; 2176 2177 mutex_lock(&ar->conf_mutex); 2178 2179 len += scnprintf(buf + len, buf_len - len, 2180 "firmware-N.bin\t\t%08x\n", 2181 crc32_le(0, ar->normal_mode_fw.fw_file.firmware->data, 2182 ar->normal_mode_fw.fw_file.firmware->size)); 2183 len += scnprintf(buf + len, buf_len - len, 2184 "athwlan\t\t\t%08x\n", 2185 crc32_le(0, ar->normal_mode_fw.fw_file.firmware_data, 2186 ar->normal_mode_fw.fw_file.firmware_len)); 2187 len += scnprintf(buf + len, buf_len - len, 2188 "otp\t\t\t%08x\n", 2189 crc32_le(0, ar->normal_mode_fw.fw_file.otp_data, 2190 ar->normal_mode_fw.fw_file.otp_len)); 2191 len += scnprintf(buf + len, buf_len - len, 2192 "codeswap\t\t%08x\n", 2193 crc32_le(0, ar->normal_mode_fw.fw_file.codeswap_data, 2194 ar->normal_mode_fw.fw_file.codeswap_len)); 2195 len += scnprintf(buf + len, buf_len - len, 2196 "board-N.bin\t\t%08x\n", 2197 crc32_le(0, ar->normal_mode_fw.board->data, 2198 ar->normal_mode_fw.board->size)); 2199 len += scnprintf(buf + len, buf_len - len, 2200 "board\t\t\t%08x\n", 2201 crc32_le(0, ar->normal_mode_fw.board_data, 2202 ar->normal_mode_fw.board_len)); 2203 2204 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 2205 2206 mutex_unlock(&ar->conf_mutex); 2207 2208 kfree(buf); 2209 return ret_cnt; 2210 } 2211 2212 static const struct file_operations fops_fw_checksums = { 2213 .read = ath10k_debug_fw_checksums_read, 2214 .open = simple_open, 2215 .owner = THIS_MODULE, 2216 .llseek = default_llseek, 2217 }; 2218 2219 static ssize_t ath10k_sta_tid_stats_mask_read(struct file *file, 2220 char __user *user_buf, 2221 size_t count, loff_t *ppos) 2222 { 2223 struct ath10k *ar = file->private_data; 2224 char buf[32]; 2225 size_t len; 2226 2227 len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->sta_tid_stats_mask); 2228 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 2229 } 2230 2231 static ssize_t ath10k_sta_tid_stats_mask_write(struct file *file, 2232 const char __user *user_buf, 2233 size_t count, loff_t *ppos) 2234 { 2235 struct ath10k *ar = file->private_data; 2236 char buf[32]; 2237 ssize_t len; 2238 u32 mask; 2239 2240 len = min(count, sizeof(buf) - 1); 2241 if (copy_from_user(buf, user_buf, len)) 2242 return -EFAULT; 2243 2244 buf[len] = '\0'; 2245 if (kstrtoint(buf, 0, &mask)) 2246 return -EINVAL; 2247 2248 ar->sta_tid_stats_mask = mask; 2249 2250 return len; 2251 } 2252 2253 static const struct file_operations fops_sta_tid_stats_mask = { 2254 .read = ath10k_sta_tid_stats_mask_read, 2255 .write = ath10k_sta_tid_stats_mask_write, 2256 .open = simple_open, 2257 .owner = THIS_MODULE, 2258 .llseek = default_llseek, 2259 }; 2260 2261 static int ath10k_debug_tpc_stats_final_request(struct ath10k *ar) 2262 { 2263 int ret; 2264 unsigned long time_left; 2265 2266 lockdep_assert_held(&ar->conf_mutex); 2267 2268 reinit_completion(&ar->debug.tpc_complete); 2269 2270 ret = ath10k_wmi_pdev_get_tpc_table_cmdid(ar, WMI_TPC_CONFIG_PARAM); 2271 if (ret) { 2272 ath10k_warn(ar, "failed to request tpc table cmdid: %d\n", ret); 2273 return ret; 2274 } 2275 2276 time_left = wait_for_completion_timeout(&ar->debug.tpc_complete, 2277 1 * HZ); 2278 if (time_left == 0) 2279 return -ETIMEDOUT; 2280 2281 return 0; 2282 } 2283 2284 static int ath10k_tpc_stats_final_open(struct inode *inode, struct file *file) 2285 { 2286 struct ath10k *ar = inode->i_private; 2287 void *buf; 2288 int ret; 2289 2290 mutex_lock(&ar->conf_mutex); 2291 2292 if (ar->state != ATH10K_STATE_ON) { 2293 ret = -ENETDOWN; 2294 goto err_unlock; 2295 } 2296 2297 buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE); 2298 if (!buf) { 2299 ret = -ENOMEM; 2300 goto err_unlock; 2301 } 2302 2303 ret = ath10k_debug_tpc_stats_final_request(ar); 2304 if (ret) { 2305 ath10k_warn(ar, "failed to request tpc stats final: %d\n", 2306 ret); 2307 goto err_free; 2308 } 2309 2310 ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf); 2311 file->private_data = buf; 2312 2313 mutex_unlock(&ar->conf_mutex); 2314 return 0; 2315 2316 err_free: 2317 vfree(buf); 2318 2319 err_unlock: 2320 mutex_unlock(&ar->conf_mutex); 2321 return ret; 2322 } 2323 2324 static int ath10k_tpc_stats_final_release(struct inode *inode, 2325 struct file *file) 2326 { 2327 vfree(file->private_data); 2328 2329 return 0; 2330 } 2331 2332 static ssize_t ath10k_tpc_stats_final_read(struct file *file, 2333 char __user *user_buf, 2334 size_t count, loff_t *ppos) 2335 { 2336 const char *buf = file->private_data; 2337 unsigned int len = strlen(buf); 2338 2339 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 2340 } 2341 2342 static const struct file_operations fops_tpc_stats_final = { 2343 .open = ath10k_tpc_stats_final_open, 2344 .release = ath10k_tpc_stats_final_release, 2345 .read = ath10k_tpc_stats_final_read, 2346 .owner = THIS_MODULE, 2347 .llseek = default_llseek, 2348 }; 2349 2350 static ssize_t ath10k_write_warm_hw_reset(struct file *file, 2351 const char __user *user_buf, 2352 size_t count, loff_t *ppos) 2353 { 2354 struct ath10k *ar = file->private_data; 2355 int ret; 2356 bool val; 2357 2358 if (kstrtobool_from_user(user_buf, count, &val)) 2359 return -EFAULT; 2360 2361 if (!val) 2362 return -EINVAL; 2363 2364 mutex_lock(&ar->conf_mutex); 2365 2366 if (ar->state != ATH10K_STATE_ON) { 2367 ret = -ENETDOWN; 2368 goto exit; 2369 } 2370 2371 if (!(test_bit(WMI_SERVICE_RESET_CHIP, ar->wmi.svc_map))) 2372 ath10k_warn(ar, "wmi service for reset chip is not available\n"); 2373 2374 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->pdev_reset, 2375 WMI_RST_MODE_WARM_RESET); 2376 2377 if (ret) { 2378 ath10k_warn(ar, "failed to enable warm hw reset: %d\n", ret); 2379 goto exit; 2380 } 2381 2382 ret = count; 2383 2384 exit: 2385 mutex_unlock(&ar->conf_mutex); 2386 return ret; 2387 } 2388 2389 static const struct file_operations fops_warm_hw_reset = { 2390 .write = ath10k_write_warm_hw_reset, 2391 .open = simple_open, 2392 .owner = THIS_MODULE, 2393 .llseek = default_llseek, 2394 }; 2395 2396 static void ath10k_peer_ps_state_disable(void *data, 2397 struct ieee80211_sta *sta) 2398 { 2399 struct ath10k *ar = data; 2400 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv; 2401 2402 spin_lock_bh(&ar->data_lock); 2403 arsta->peer_ps_state = WMI_PEER_PS_STATE_DISABLED; 2404 spin_unlock_bh(&ar->data_lock); 2405 } 2406 2407 static ssize_t ath10k_write_ps_state_enable(struct file *file, 2408 const char __user *user_buf, 2409 size_t count, loff_t *ppos) 2410 { 2411 struct ath10k *ar = file->private_data; 2412 int ret; 2413 u32 param; 2414 u8 ps_state_enable; 2415 2416 if (kstrtou8_from_user(user_buf, count, 0, &ps_state_enable)) 2417 return -EINVAL; 2418 2419 if (ps_state_enable > 1) 2420 return -EINVAL; 2421 2422 mutex_lock(&ar->conf_mutex); 2423 2424 if (ar->ps_state_enable == ps_state_enable) { 2425 ret = count; 2426 goto exit; 2427 } 2428 2429 param = ar->wmi.pdev_param->peer_sta_ps_statechg_enable; 2430 ret = ath10k_wmi_pdev_set_param(ar, param, ps_state_enable); 2431 if (ret) { 2432 ath10k_warn(ar, "failed to enable ps_state_enable: %d\n", 2433 ret); 2434 goto exit; 2435 } 2436 ar->ps_state_enable = ps_state_enable; 2437 2438 if (!ar->ps_state_enable) 2439 ieee80211_iterate_stations_atomic(ar->hw, 2440 ath10k_peer_ps_state_disable, 2441 ar); 2442 2443 ret = count; 2444 2445 exit: 2446 mutex_unlock(&ar->conf_mutex); 2447 2448 return ret; 2449 } 2450 2451 static ssize_t ath10k_read_ps_state_enable(struct file *file, 2452 char __user *user_buf, 2453 size_t count, loff_t *ppos) 2454 { 2455 struct ath10k *ar = file->private_data; 2456 int len = 0; 2457 char buf[32]; 2458 2459 mutex_lock(&ar->conf_mutex); 2460 len = scnprintf(buf, sizeof(buf) - len, "%d\n", 2461 ar->ps_state_enable); 2462 mutex_unlock(&ar->conf_mutex); 2463 2464 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 2465 } 2466 2467 static const struct file_operations fops_ps_state_enable = { 2468 .read = ath10k_read_ps_state_enable, 2469 .write = ath10k_write_ps_state_enable, 2470 .open = simple_open, 2471 .owner = THIS_MODULE, 2472 .llseek = default_llseek, 2473 }; 2474 2475 static ssize_t ath10k_write_reset_htt_stats(struct file *file, 2476 const char __user *user_buf, 2477 size_t count, loff_t *ppos) 2478 { 2479 struct ath10k *ar = file->private_data; 2480 unsigned long reset; 2481 int ret; 2482 2483 ret = kstrtoul_from_user(user_buf, count, 0, &reset); 2484 if (ret) 2485 return ret; 2486 2487 if (reset == 0 || reset > 0x1ffff) 2488 return -EINVAL; 2489 2490 mutex_lock(&ar->conf_mutex); 2491 2492 ar->debug.reset_htt_stats = reset; 2493 2494 ret = ath10k_debug_htt_stats_req(ar); 2495 if (ret) 2496 goto out; 2497 2498 ar->debug.reset_htt_stats = 0; 2499 ret = count; 2500 2501 out: 2502 mutex_unlock(&ar->conf_mutex); 2503 return ret; 2504 } 2505 2506 static const struct file_operations fops_reset_htt_stats = { 2507 .write = ath10k_write_reset_htt_stats, 2508 .owner = THIS_MODULE, 2509 .open = simple_open, 2510 .llseek = default_llseek, 2511 }; 2512 2513 int ath10k_debug_create(struct ath10k *ar) 2514 { 2515 ar->debug.cal_data = vzalloc(ATH10K_DEBUG_CAL_DATA_LEN); 2516 if (!ar->debug.cal_data) 2517 return -ENOMEM; 2518 2519 INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs); 2520 INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs); 2521 INIT_LIST_HEAD(&ar->debug.fw_stats.peers); 2522 INIT_LIST_HEAD(&ar->debug.fw_stats.peers_extd); 2523 2524 return 0; 2525 } 2526 2527 void ath10k_debug_destroy(struct ath10k *ar) 2528 { 2529 vfree(ar->debug.cal_data); 2530 ar->debug.cal_data = NULL; 2531 2532 ath10k_debug_fw_stats_reset(ar); 2533 2534 kfree(ar->debug.tpc_stats); 2535 kfree(ar->debug.tpc_stats_final); 2536 } 2537 2538 int ath10k_debug_register(struct ath10k *ar) 2539 { 2540 ar->debug.debugfs_phy = debugfs_create_dir("ath10k", 2541 ar->hw->wiphy->debugfsdir); 2542 if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) { 2543 if (IS_ERR(ar->debug.debugfs_phy)) 2544 return PTR_ERR(ar->debug.debugfs_phy); 2545 2546 return -ENOMEM; 2547 } 2548 2549 INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork, 2550 ath10k_debug_htt_stats_dwork); 2551 2552 init_completion(&ar->debug.tpc_complete); 2553 init_completion(&ar->debug.fw_stats_complete); 2554 2555 debugfs_create_file("fw_stats", 0400, ar->debug.debugfs_phy, ar, 2556 &fops_fw_stats); 2557 2558 debugfs_create_file("fw_reset_stats", 0400, ar->debug.debugfs_phy, ar, 2559 &fops_fw_reset_stats); 2560 2561 debugfs_create_file("wmi_services", 0400, ar->debug.debugfs_phy, ar, 2562 &fops_wmi_services); 2563 2564 debugfs_create_file("simulate_fw_crash", 0600, ar->debug.debugfs_phy, ar, 2565 &fops_simulate_fw_crash); 2566 2567 debugfs_create_file("reg_addr", 0600, ar->debug.debugfs_phy, ar, 2568 &fops_reg_addr); 2569 2570 debugfs_create_file("reg_value", 0600, ar->debug.debugfs_phy, ar, 2571 &fops_reg_value); 2572 2573 debugfs_create_file("mem_value", 0600, ar->debug.debugfs_phy, ar, 2574 &fops_mem_value); 2575 2576 debugfs_create_file("chip_id", 0400, ar->debug.debugfs_phy, ar, 2577 &fops_chip_id); 2578 2579 debugfs_create_file("htt_stats_mask", 0600, ar->debug.debugfs_phy, ar, 2580 &fops_htt_stats_mask); 2581 2582 debugfs_create_file("htt_max_amsdu_ampdu", 0600, ar->debug.debugfs_phy, ar, 2583 &fops_htt_max_amsdu_ampdu); 2584 2585 debugfs_create_file("fw_dbglog", 0600, ar->debug.debugfs_phy, ar, 2586 &fops_fw_dbglog); 2587 2588 if (!test_bit(ATH10K_FW_FEATURE_NON_BMI, 2589 ar->normal_mode_fw.fw_file.fw_features)) { 2590 debugfs_create_file("cal_data", 0400, ar->debug.debugfs_phy, ar, 2591 &fops_cal_data); 2592 2593 debugfs_create_file("nf_cal_period", 0600, ar->debug.debugfs_phy, ar, 2594 &fops_nf_cal_period); 2595 } 2596 2597 debugfs_create_file("ani_enable", 0600, ar->debug.debugfs_phy, ar, 2598 &fops_ani_enable); 2599 2600 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED)) { 2601 debugfs_create_file("dfs_simulate_radar", 0200, ar->debug.debugfs_phy, 2602 ar, &fops_simulate_radar); 2603 2604 debugfs_create_bool("dfs_block_radar_events", 0200, 2605 ar->debug.debugfs_phy, 2606 &ar->dfs_block_radar_events); 2607 2608 debugfs_create_file("dfs_stats", 0400, ar->debug.debugfs_phy, ar, 2609 &fops_dfs_stats); 2610 } 2611 2612 debugfs_create_file("pktlog_filter", 0644, ar->debug.debugfs_phy, ar, 2613 &fops_pktlog_filter); 2614 2615 if (test_bit(WMI_SERVICE_THERM_THROT, ar->wmi.svc_map)) 2616 debugfs_create_file("quiet_period", 0644, ar->debug.debugfs_phy, ar, 2617 &fops_quiet_period); 2618 2619 debugfs_create_file("tpc_stats", 0400, ar->debug.debugfs_phy, ar, 2620 &fops_tpc_stats); 2621 2622 if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map)) 2623 debugfs_create_file("btcoex", 0644, ar->debug.debugfs_phy, ar, 2624 &fops_btcoex); 2625 2626 if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map)) { 2627 debugfs_create_file("peer_stats", 0644, ar->debug.debugfs_phy, ar, 2628 &fops_peer_stats); 2629 2630 debugfs_create_file("enable_extd_tx_stats", 0644, 2631 ar->debug.debugfs_phy, ar, 2632 &fops_enable_extd_tx_stats); 2633 } 2634 2635 debugfs_create_file("fw_checksums", 0400, ar->debug.debugfs_phy, ar, 2636 &fops_fw_checksums); 2637 2638 if (IS_ENABLED(CONFIG_MAC80211_DEBUGFS)) 2639 debugfs_create_file("sta_tid_stats_mask", 0600, 2640 ar->debug.debugfs_phy, 2641 ar, &fops_sta_tid_stats_mask); 2642 2643 if (test_bit(WMI_SERVICE_TPC_STATS_FINAL, ar->wmi.svc_map)) 2644 debugfs_create_file("tpc_stats_final", 0400, 2645 ar->debug.debugfs_phy, ar, 2646 &fops_tpc_stats_final); 2647 2648 debugfs_create_file("warm_hw_reset", 0600, ar->debug.debugfs_phy, ar, 2649 &fops_warm_hw_reset); 2650 2651 debugfs_create_file("ps_state_enable", 0600, ar->debug.debugfs_phy, ar, 2652 &fops_ps_state_enable); 2653 2654 debugfs_create_file("reset_htt_stats", 0200, ar->debug.debugfs_phy, ar, 2655 &fops_reset_htt_stats); 2656 2657 return 0; 2658 } 2659 2660 void ath10k_debug_unregister(struct ath10k *ar) 2661 { 2662 cancel_delayed_work_sync(&ar->debug.htt_stats_dwork); 2663 } 2664 2665 #endif /* CONFIG_ATH10K_DEBUGFS */ 2666 2667 #ifdef CONFIG_ATH10K_DEBUG 2668 void __ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask, 2669 const char *fmt, ...) 2670 { 2671 struct va_format vaf; 2672 va_list args; 2673 2674 va_start(args, fmt); 2675 2676 vaf.fmt = fmt; 2677 vaf.va = &args; 2678 2679 if (ath10k_debug_mask & mask) 2680 dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf); 2681 2682 trace_ath10k_log_dbg(ar, mask, &vaf); 2683 2684 va_end(args); 2685 } 2686 EXPORT_SYMBOL(__ath10k_dbg); 2687 2688 void ath10k_dbg_dump(struct ath10k *ar, 2689 enum ath10k_debug_mask mask, 2690 const char *msg, const char *prefix, 2691 const void *buf, size_t len) 2692 { 2693 char linebuf[256]; 2694 size_t linebuflen; 2695 const void *ptr; 2696 2697 if (ath10k_debug_mask & mask) { 2698 if (msg) 2699 __ath10k_dbg(ar, mask, "%s\n", msg); 2700 2701 for (ptr = buf; (ptr - buf) < len; ptr += 16) { 2702 linebuflen = 0; 2703 linebuflen += scnprintf(linebuf + linebuflen, 2704 sizeof(linebuf) - linebuflen, 2705 "%s%08x: ", 2706 (prefix ? prefix : ""), 2707 (unsigned int)(ptr - buf)); 2708 hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1, 2709 linebuf + linebuflen, 2710 sizeof(linebuf) - linebuflen, true); 2711 dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf); 2712 } 2713 } 2714 2715 /* tracing code doesn't like null strings :/ */ 2716 trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "", 2717 buf, len); 2718 } 2719 EXPORT_SYMBOL(ath10k_dbg_dump); 2720 2721 #endif /* CONFIG_ATH10K_DEBUG */ 2722