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, ®_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, ®_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]; 991 unsigned int amsdu, ampdu; 992 993 simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); 994 995 /* make sure that buf is null terminated */ 996 buf[sizeof(buf) - 1] = 0; 997 998 res = sscanf(buf, "%u %u", &amsdu, &du); 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]; 1047 unsigned int log_level; 1048 u64 mask; 1049 1050 simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count); 1051 1052 /* make sure that buf is null terminated */ 1053 buf[sizeof(buf) - 1] = 0; 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 static void ath10k_tpc_stats_print(struct ath10k_tpc_stats *tpc_stats, 1484 unsigned int j, char *buf, size_t *len) 1485 { 1486 int i; 1487 size_t buf_len; 1488 static const char table_str[][5] = { "CDD", 1489 "STBC", 1490 "TXBF" }; 1491 static const char pream_str[][6] = { "CCK", 1492 "OFDM", 1493 "HT20", 1494 "HT40", 1495 "VHT20", 1496 "VHT40", 1497 "VHT80", 1498 "HTCUP" }; 1499 1500 buf_len = ATH10K_TPC_CONFIG_BUF_SIZE; 1501 *len += scnprintf(buf + *len, buf_len - *len, 1502 "********************************\n"); 1503 *len += scnprintf(buf + *len, buf_len - *len, 1504 "******************* %s POWER TABLE ****************\n", 1505 table_str[j]); 1506 *len += scnprintf(buf + *len, buf_len - *len, 1507 "********************************\n"); 1508 *len += scnprintf(buf + *len, buf_len - *len, 1509 "No. Preamble Rate_code tpc_value1 tpc_value2 tpc_value3\n"); 1510 1511 for (i = 0; i < tpc_stats->rate_max; i++) { 1512 *len += scnprintf(buf + *len, buf_len - *len, 1513 "%8d %s 0x%2x %s\n", i, 1514 pream_str[tpc_stats->tpc_table[j].pream_idx[i]], 1515 tpc_stats->tpc_table[j].rate_code[i], 1516 tpc_stats->tpc_table[j].tpc_value[i]); 1517 } 1518 1519 *len += scnprintf(buf + *len, buf_len - *len, 1520 "***********************************\n"); 1521 } 1522 1523 static void ath10k_tpc_stats_fill(struct ath10k *ar, 1524 struct ath10k_tpc_stats *tpc_stats, 1525 char *buf) 1526 { 1527 int j; 1528 size_t len, buf_len; 1529 1530 len = 0; 1531 buf_len = ATH10K_TPC_CONFIG_BUF_SIZE; 1532 1533 spin_lock_bh(&ar->data_lock); 1534 1535 if (!tpc_stats) { 1536 ath10k_warn(ar, "failed to get tpc stats\n"); 1537 goto unlock; 1538 } 1539 1540 len += scnprintf(buf + len, buf_len - len, "\n"); 1541 len += scnprintf(buf + len, buf_len - len, 1542 "*************************************\n"); 1543 len += scnprintf(buf + len, buf_len - len, 1544 "TPC config for channel %4d mode %d\n", 1545 tpc_stats->chan_freq, 1546 tpc_stats->phy_mode); 1547 len += scnprintf(buf + len, buf_len - len, 1548 "*************************************\n"); 1549 len += scnprintf(buf + len, buf_len - len, 1550 "CTL = 0x%2x Reg. Domain = %2d\n", 1551 tpc_stats->ctl, 1552 tpc_stats->reg_domain); 1553 len += scnprintf(buf + len, buf_len - len, 1554 "Antenna Gain = %2d Reg. Max Antenna Gain = %2d\n", 1555 tpc_stats->twice_antenna_gain, 1556 tpc_stats->twice_antenna_reduction); 1557 len += scnprintf(buf + len, buf_len - len, 1558 "Power Limit = %2d Reg. Max Power = %2d\n", 1559 tpc_stats->power_limit, 1560 tpc_stats->twice_max_rd_power / 2); 1561 len += scnprintf(buf + len, buf_len - len, 1562 "Num tx chains = %2d Num supported rates = %2d\n", 1563 tpc_stats->num_tx_chain, 1564 tpc_stats->rate_max); 1565 1566 for (j = 0; j < WMI_TPC_FLAG; j++) { 1567 switch (j) { 1568 case WMI_TPC_TABLE_TYPE_CDD: 1569 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) { 1570 len += scnprintf(buf + len, buf_len - len, 1571 "CDD not supported\n"); 1572 break; 1573 } 1574 1575 ath10k_tpc_stats_print(tpc_stats, j, buf, &len); 1576 break; 1577 case WMI_TPC_TABLE_TYPE_STBC: 1578 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) { 1579 len += scnprintf(buf + len, buf_len - len, 1580 "STBC not supported\n"); 1581 break; 1582 } 1583 1584 ath10k_tpc_stats_print(tpc_stats, j, buf, &len); 1585 break; 1586 case WMI_TPC_TABLE_TYPE_TXBF: 1587 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) { 1588 len += scnprintf(buf + len, buf_len - len, 1589 "TXBF not supported\n***************************\n"); 1590 break; 1591 } 1592 1593 ath10k_tpc_stats_print(tpc_stats, j, buf, &len); 1594 break; 1595 default: 1596 len += scnprintf(buf + len, buf_len - len, 1597 "Invalid Type\n"); 1598 break; 1599 } 1600 } 1601 1602 unlock: 1603 spin_unlock_bh(&ar->data_lock); 1604 1605 if (len >= buf_len) 1606 buf[len - 1] = 0; 1607 else 1608 buf[len] = 0; 1609 } 1610 1611 static int ath10k_tpc_stats_open(struct inode *inode, struct file *file) 1612 { 1613 struct ath10k *ar = inode->i_private; 1614 void *buf = NULL; 1615 int ret; 1616 1617 mutex_lock(&ar->conf_mutex); 1618 1619 if (ar->state != ATH10K_STATE_ON) { 1620 ret = -ENETDOWN; 1621 goto err_unlock; 1622 } 1623 1624 buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE); 1625 if (!buf) { 1626 ret = -ENOMEM; 1627 goto err_unlock; 1628 } 1629 1630 ret = ath10k_debug_tpc_stats_request(ar); 1631 if (ret) { 1632 ath10k_warn(ar, "failed to request tpc config stats: %d\n", 1633 ret); 1634 goto err_free; 1635 } 1636 1637 ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf); 1638 file->private_data = buf; 1639 1640 mutex_unlock(&ar->conf_mutex); 1641 return 0; 1642 1643 err_free: 1644 vfree(buf); 1645 1646 err_unlock: 1647 mutex_unlock(&ar->conf_mutex); 1648 return ret; 1649 } 1650 1651 static int ath10k_tpc_stats_release(struct inode *inode, struct file *file) 1652 { 1653 vfree(file->private_data); 1654 1655 return 0; 1656 } 1657 1658 static ssize_t ath10k_tpc_stats_read(struct file *file, char __user *user_buf, 1659 size_t count, loff_t *ppos) 1660 { 1661 const char *buf = file->private_data; 1662 size_t len = strlen(buf); 1663 1664 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1665 } 1666 1667 static const struct file_operations fops_tpc_stats = { 1668 .open = ath10k_tpc_stats_open, 1669 .release = ath10k_tpc_stats_release, 1670 .read = ath10k_tpc_stats_read, 1671 .owner = THIS_MODULE, 1672 .llseek = default_llseek, 1673 }; 1674 1675 int ath10k_debug_start(struct ath10k *ar) 1676 { 1677 int ret; 1678 1679 lockdep_assert_held(&ar->conf_mutex); 1680 1681 ret = ath10k_debug_htt_stats_req(ar); 1682 if (ret) 1683 /* continue normally anyway, this isn't serious */ 1684 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n", 1685 ret); 1686 1687 if (ar->debug.fw_dbglog_mask) { 1688 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask, 1689 ATH10K_DBGLOG_LEVEL_WARN); 1690 if (ret) 1691 /* not serious */ 1692 ath10k_warn(ar, "failed to enable dbglog during start: %d", 1693 ret); 1694 } 1695 1696 if (ar->pktlog_filter) { 1697 ret = ath10k_wmi_pdev_pktlog_enable(ar, 1698 ar->pktlog_filter); 1699 if (ret) 1700 /* not serious */ 1701 ath10k_warn(ar, 1702 "failed to enable pktlog filter %x: %d\n", 1703 ar->pktlog_filter, ret); 1704 } else { 1705 ret = ath10k_wmi_pdev_pktlog_disable(ar); 1706 if (ret) 1707 /* not serious */ 1708 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret); 1709 } 1710 1711 if (ar->debug.nf_cal_period) { 1712 ret = ath10k_wmi_pdev_set_param(ar, 1713 ar->wmi.pdev_param->cal_period, 1714 ar->debug.nf_cal_period); 1715 if (ret) 1716 /* not serious */ 1717 ath10k_warn(ar, "cal period cfg failed from debug start: %d\n", 1718 ret); 1719 } 1720 1721 return ret; 1722 } 1723 1724 void ath10k_debug_stop(struct ath10k *ar) 1725 { 1726 lockdep_assert_held(&ar->conf_mutex); 1727 1728 ath10k_debug_cal_data_fetch(ar); 1729 1730 /* Must not use _sync to avoid deadlock, we do that in 1731 * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid 1732 * warning from del_timer(). 1733 */ 1734 if (ar->debug.htt_stats_mask != 0) 1735 cancel_delayed_work(&ar->debug.htt_stats_dwork); 1736 1737 ath10k_wmi_pdev_pktlog_disable(ar); 1738 } 1739 1740 static ssize_t ath10k_write_simulate_radar(struct file *file, 1741 const char __user *user_buf, 1742 size_t count, loff_t *ppos) 1743 { 1744 struct ath10k *ar = file->private_data; 1745 struct ath10k_vif *arvif; 1746 1747 /* Just check for for the first vif alone, as all the vifs will be 1748 * sharing the same channel and if the channel is disabled, all the 1749 * vifs will share the same 'is_started' state. 1750 */ 1751 arvif = list_first_entry(&ar->arvifs, typeof(*arvif), list); 1752 if (!arvif->is_started) 1753 return -EINVAL; 1754 1755 ieee80211_radar_detected(ar->hw); 1756 1757 return count; 1758 } 1759 1760 static const struct file_operations fops_simulate_radar = { 1761 .write = ath10k_write_simulate_radar, 1762 .open = simple_open, 1763 .owner = THIS_MODULE, 1764 .llseek = default_llseek, 1765 }; 1766 1767 #define ATH10K_DFS_STAT(s, p) (\ 1768 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \ 1769 ar->debug.dfs_stats.p)) 1770 1771 #define ATH10K_DFS_POOL_STAT(s, p) (\ 1772 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \ 1773 ar->debug.dfs_pool_stats.p)) 1774 1775 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf, 1776 size_t count, loff_t *ppos) 1777 { 1778 int retval = 0, len = 0; 1779 const int size = 8000; 1780 struct ath10k *ar = file->private_data; 1781 char *buf; 1782 1783 buf = kzalloc(size, GFP_KERNEL); 1784 if (buf == NULL) 1785 return -ENOMEM; 1786 1787 if (!ar->dfs_detector) { 1788 len += scnprintf(buf + len, size - len, "DFS not enabled\n"); 1789 goto exit; 1790 } 1791 1792 ar->debug.dfs_pool_stats = 1793 ar->dfs_detector->get_stats(ar->dfs_detector); 1794 1795 len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n"); 1796 1797 ATH10K_DFS_STAT("reported phy errors", phy_errors); 1798 ATH10K_DFS_STAT("pulse events reported", pulses_total); 1799 ATH10K_DFS_STAT("DFS pulses detected", pulses_detected); 1800 ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded); 1801 ATH10K_DFS_STAT("Radars detected", radar_detected); 1802 1803 len += scnprintf(buf + len, size - len, "Global Pool statistics:\n"); 1804 ATH10K_DFS_POOL_STAT("Pool references", pool_reference); 1805 ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated); 1806 ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error); 1807 ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used); 1808 ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated); 1809 ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error); 1810 ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used); 1811 1812 exit: 1813 if (len > size) 1814 len = size; 1815 1816 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1817 kfree(buf); 1818 1819 return retval; 1820 } 1821 1822 static const struct file_operations fops_dfs_stats = { 1823 .read = ath10k_read_dfs_stats, 1824 .open = simple_open, 1825 .owner = THIS_MODULE, 1826 .llseek = default_llseek, 1827 }; 1828 1829 static ssize_t ath10k_write_pktlog_filter(struct file *file, 1830 const char __user *ubuf, 1831 size_t count, loff_t *ppos) 1832 { 1833 struct ath10k *ar = file->private_data; 1834 u32 filter; 1835 int ret; 1836 1837 if (kstrtouint_from_user(ubuf, count, 0, &filter)) 1838 return -EINVAL; 1839 1840 mutex_lock(&ar->conf_mutex); 1841 1842 if (ar->state != ATH10K_STATE_ON) { 1843 ar->pktlog_filter = filter; 1844 ret = count; 1845 goto out; 1846 } 1847 1848 if (filter == ar->pktlog_filter) { 1849 ret = count; 1850 goto out; 1851 } 1852 1853 if (filter) { 1854 ret = ath10k_wmi_pdev_pktlog_enable(ar, filter); 1855 if (ret) { 1856 ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n", 1857 ar->pktlog_filter, ret); 1858 goto out; 1859 } 1860 } else { 1861 ret = ath10k_wmi_pdev_pktlog_disable(ar); 1862 if (ret) { 1863 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret); 1864 goto out; 1865 } 1866 } 1867 1868 ar->pktlog_filter = filter; 1869 ret = count; 1870 1871 out: 1872 mutex_unlock(&ar->conf_mutex); 1873 return ret; 1874 } 1875 1876 static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf, 1877 size_t count, loff_t *ppos) 1878 { 1879 char buf[32]; 1880 struct ath10k *ar = file->private_data; 1881 int len = 0; 1882 1883 mutex_lock(&ar->conf_mutex); 1884 len = scnprintf(buf, sizeof(buf) - len, "%08x\n", 1885 ar->pktlog_filter); 1886 mutex_unlock(&ar->conf_mutex); 1887 1888 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 1889 } 1890 1891 static const struct file_operations fops_pktlog_filter = { 1892 .read = ath10k_read_pktlog_filter, 1893 .write = ath10k_write_pktlog_filter, 1894 .open = simple_open 1895 }; 1896 1897 static ssize_t ath10k_write_quiet_period(struct file *file, 1898 const char __user *ubuf, 1899 size_t count, loff_t *ppos) 1900 { 1901 struct ath10k *ar = file->private_data; 1902 u32 period; 1903 1904 if (kstrtouint_from_user(ubuf, count, 0, &period)) 1905 return -EINVAL; 1906 1907 if (period < ATH10K_QUIET_PERIOD_MIN) { 1908 ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n", 1909 period); 1910 return -EINVAL; 1911 } 1912 mutex_lock(&ar->conf_mutex); 1913 ar->thermal.quiet_period = period; 1914 ath10k_thermal_set_throttling(ar); 1915 mutex_unlock(&ar->conf_mutex); 1916 1917 return count; 1918 } 1919 1920 static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf, 1921 size_t count, loff_t *ppos) 1922 { 1923 char buf[32]; 1924 struct ath10k *ar = file->private_data; 1925 int len = 0; 1926 1927 mutex_lock(&ar->conf_mutex); 1928 len = scnprintf(buf, sizeof(buf) - len, "%d\n", 1929 ar->thermal.quiet_period); 1930 mutex_unlock(&ar->conf_mutex); 1931 1932 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 1933 } 1934 1935 static const struct file_operations fops_quiet_period = { 1936 .read = ath10k_read_quiet_period, 1937 .write = ath10k_write_quiet_period, 1938 .open = simple_open 1939 }; 1940 1941 static ssize_t ath10k_write_btcoex(struct file *file, 1942 const char __user *ubuf, 1943 size_t count, loff_t *ppos) 1944 { 1945 struct ath10k *ar = file->private_data; 1946 char buf[32]; 1947 size_t buf_size; 1948 int ret; 1949 bool val; 1950 u32 pdev_param; 1951 1952 buf_size = min(count, (sizeof(buf) - 1)); 1953 if (copy_from_user(buf, ubuf, buf_size)) 1954 return -EFAULT; 1955 1956 buf[buf_size] = '\0'; 1957 1958 if (strtobool(buf, &val) != 0) 1959 return -EINVAL; 1960 1961 mutex_lock(&ar->conf_mutex); 1962 1963 if (ar->state != ATH10K_STATE_ON && 1964 ar->state != ATH10K_STATE_RESTARTED) { 1965 ret = -ENETDOWN; 1966 goto exit; 1967 } 1968 1969 if (!(test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags) ^ val)) { 1970 ret = count; 1971 goto exit; 1972 } 1973 1974 pdev_param = ar->wmi.pdev_param->enable_btcoex; 1975 if (test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM, 1976 ar->running_fw->fw_file.fw_features)) { 1977 ret = ath10k_wmi_pdev_set_param(ar, pdev_param, val); 1978 if (ret) { 1979 ath10k_warn(ar, "failed to enable btcoex: %d\n", ret); 1980 ret = count; 1981 goto exit; 1982 } 1983 } else { 1984 ath10k_info(ar, "restarting firmware due to btcoex change"); 1985 queue_work(ar->workqueue, &ar->restart_work); 1986 } 1987 1988 if (val) 1989 set_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags); 1990 else 1991 clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags); 1992 1993 ret = count; 1994 1995 exit: 1996 mutex_unlock(&ar->conf_mutex); 1997 1998 return ret; 1999 } 2000 2001 static ssize_t ath10k_read_btcoex(struct file *file, char __user *ubuf, 2002 size_t count, loff_t *ppos) 2003 { 2004 char buf[32]; 2005 struct ath10k *ar = file->private_data; 2006 int len = 0; 2007 2008 mutex_lock(&ar->conf_mutex); 2009 len = scnprintf(buf, sizeof(buf) - len, "%d\n", 2010 test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags)); 2011 mutex_unlock(&ar->conf_mutex); 2012 2013 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 2014 } 2015 2016 static const struct file_operations fops_btcoex = { 2017 .read = ath10k_read_btcoex, 2018 .write = ath10k_write_btcoex, 2019 .open = simple_open 2020 }; 2021 2022 static ssize_t ath10k_write_peer_stats(struct file *file, 2023 const char __user *ubuf, 2024 size_t count, loff_t *ppos) 2025 { 2026 struct ath10k *ar = file->private_data; 2027 char buf[32]; 2028 size_t buf_size; 2029 int ret; 2030 bool val; 2031 2032 buf_size = min(count, (sizeof(buf) - 1)); 2033 if (copy_from_user(buf, ubuf, buf_size)) 2034 return -EFAULT; 2035 2036 buf[buf_size] = '\0'; 2037 2038 if (strtobool(buf, &val) != 0) 2039 return -EINVAL; 2040 2041 mutex_lock(&ar->conf_mutex); 2042 2043 if (ar->state != ATH10K_STATE_ON && 2044 ar->state != ATH10K_STATE_RESTARTED) { 2045 ret = -ENETDOWN; 2046 goto exit; 2047 } 2048 2049 if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val)) { 2050 ret = count; 2051 goto exit; 2052 } 2053 2054 if (val) 2055 set_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags); 2056 else 2057 clear_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags); 2058 2059 ath10k_info(ar, "restarting firmware due to Peer stats change"); 2060 2061 queue_work(ar->workqueue, &ar->restart_work); 2062 ret = count; 2063 2064 exit: 2065 mutex_unlock(&ar->conf_mutex); 2066 return ret; 2067 } 2068 2069 static ssize_t ath10k_read_peer_stats(struct file *file, char __user *ubuf, 2070 size_t count, loff_t *ppos) 2071 2072 { 2073 char buf[32]; 2074 struct ath10k *ar = file->private_data; 2075 int len = 0; 2076 2077 mutex_lock(&ar->conf_mutex); 2078 len = scnprintf(buf, sizeof(buf) - len, "%d\n", 2079 test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags)); 2080 mutex_unlock(&ar->conf_mutex); 2081 2082 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 2083 } 2084 2085 static const struct file_operations fops_peer_stats = { 2086 .read = ath10k_read_peer_stats, 2087 .write = ath10k_write_peer_stats, 2088 .open = simple_open 2089 }; 2090 2091 static ssize_t ath10k_debug_fw_checksums_read(struct file *file, 2092 char __user *user_buf, 2093 size_t count, loff_t *ppos) 2094 { 2095 struct ath10k *ar = file->private_data; 2096 size_t len = 0, buf_len = 4096; 2097 ssize_t ret_cnt; 2098 char *buf; 2099 2100 buf = kzalloc(buf_len, GFP_KERNEL); 2101 if (!buf) 2102 return -ENOMEM; 2103 2104 mutex_lock(&ar->conf_mutex); 2105 2106 len += scnprintf(buf + len, buf_len - len, 2107 "firmware-N.bin\t\t%08x\n", 2108 crc32_le(0, ar->normal_mode_fw.fw_file.firmware->data, 2109 ar->normal_mode_fw.fw_file.firmware->size)); 2110 len += scnprintf(buf + len, buf_len - len, 2111 "athwlan\t\t\t%08x\n", 2112 crc32_le(0, ar->normal_mode_fw.fw_file.firmware_data, 2113 ar->normal_mode_fw.fw_file.firmware_len)); 2114 len += scnprintf(buf + len, buf_len - len, 2115 "otp\t\t\t%08x\n", 2116 crc32_le(0, ar->normal_mode_fw.fw_file.otp_data, 2117 ar->normal_mode_fw.fw_file.otp_len)); 2118 len += scnprintf(buf + len, buf_len - len, 2119 "codeswap\t\t%08x\n", 2120 crc32_le(0, ar->normal_mode_fw.fw_file.codeswap_data, 2121 ar->normal_mode_fw.fw_file.codeswap_len)); 2122 len += scnprintf(buf + len, buf_len - len, 2123 "board-N.bin\t\t%08x\n", 2124 crc32_le(0, ar->normal_mode_fw.board->data, 2125 ar->normal_mode_fw.board->size)); 2126 len += scnprintf(buf + len, buf_len - len, 2127 "board\t\t\t%08x\n", 2128 crc32_le(0, ar->normal_mode_fw.board_data, 2129 ar->normal_mode_fw.board_len)); 2130 2131 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 2132 2133 mutex_unlock(&ar->conf_mutex); 2134 2135 kfree(buf); 2136 return ret_cnt; 2137 } 2138 2139 static const struct file_operations fops_fw_checksums = { 2140 .read = ath10k_debug_fw_checksums_read, 2141 .open = simple_open, 2142 .owner = THIS_MODULE, 2143 .llseek = default_llseek, 2144 }; 2145 2146 int ath10k_debug_create(struct ath10k *ar) 2147 { 2148 ar->debug.cal_data = vzalloc(ATH10K_DEBUG_CAL_DATA_LEN); 2149 if (!ar->debug.cal_data) 2150 return -ENOMEM; 2151 2152 INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs); 2153 INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs); 2154 INIT_LIST_HEAD(&ar->debug.fw_stats.peers); 2155 INIT_LIST_HEAD(&ar->debug.fw_stats.peers_extd); 2156 2157 return 0; 2158 } 2159 2160 void ath10k_debug_destroy(struct ath10k *ar) 2161 { 2162 vfree(ar->debug.cal_data); 2163 ar->debug.cal_data = NULL; 2164 2165 ath10k_debug_fw_stats_reset(ar); 2166 2167 kfree(ar->debug.tpc_stats); 2168 } 2169 2170 int ath10k_debug_register(struct ath10k *ar) 2171 { 2172 ar->debug.debugfs_phy = debugfs_create_dir("ath10k", 2173 ar->hw->wiphy->debugfsdir); 2174 if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) { 2175 if (IS_ERR(ar->debug.debugfs_phy)) 2176 return PTR_ERR(ar->debug.debugfs_phy); 2177 2178 return -ENOMEM; 2179 } 2180 2181 INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork, 2182 ath10k_debug_htt_stats_dwork); 2183 2184 init_completion(&ar->debug.tpc_complete); 2185 init_completion(&ar->debug.fw_stats_complete); 2186 2187 debugfs_create_file("fw_stats", 0400, ar->debug.debugfs_phy, ar, 2188 &fops_fw_stats); 2189 2190 debugfs_create_file("fw_reset_stats", 0400, ar->debug.debugfs_phy, ar, 2191 &fops_fw_reset_stats); 2192 2193 debugfs_create_file("wmi_services", 0400, ar->debug.debugfs_phy, ar, 2194 &fops_wmi_services); 2195 2196 debugfs_create_file("simulate_fw_crash", 0600, ar->debug.debugfs_phy, ar, 2197 &fops_simulate_fw_crash); 2198 2199 debugfs_create_file("reg_addr", 0600, ar->debug.debugfs_phy, ar, 2200 &fops_reg_addr); 2201 2202 debugfs_create_file("reg_value", 0600, ar->debug.debugfs_phy, ar, 2203 &fops_reg_value); 2204 2205 debugfs_create_file("mem_value", 0600, ar->debug.debugfs_phy, ar, 2206 &fops_mem_value); 2207 2208 debugfs_create_file("chip_id", 0400, ar->debug.debugfs_phy, ar, 2209 &fops_chip_id); 2210 2211 debugfs_create_file("htt_stats_mask", 0600, ar->debug.debugfs_phy, ar, 2212 &fops_htt_stats_mask); 2213 2214 debugfs_create_file("htt_max_amsdu_ampdu", 0600, ar->debug.debugfs_phy, ar, 2215 &fops_htt_max_amsdu_ampdu); 2216 2217 debugfs_create_file("fw_dbglog", 0600, ar->debug.debugfs_phy, ar, 2218 &fops_fw_dbglog); 2219 2220 debugfs_create_file("cal_data", 0400, ar->debug.debugfs_phy, ar, 2221 &fops_cal_data); 2222 2223 debugfs_create_file("ani_enable", 0600, ar->debug.debugfs_phy, ar, 2224 &fops_ani_enable); 2225 2226 debugfs_create_file("nf_cal_period", 0600, ar->debug.debugfs_phy, ar, 2227 &fops_nf_cal_period); 2228 2229 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED)) { 2230 debugfs_create_file("dfs_simulate_radar", 0200, ar->debug.debugfs_phy, 2231 ar, &fops_simulate_radar); 2232 2233 debugfs_create_bool("dfs_block_radar_events", 0200, 2234 ar->debug.debugfs_phy, 2235 &ar->dfs_block_radar_events); 2236 2237 debugfs_create_file("dfs_stats", 0400, ar->debug.debugfs_phy, ar, 2238 &fops_dfs_stats); 2239 } 2240 2241 debugfs_create_file("pktlog_filter", 0644, ar->debug.debugfs_phy, ar, 2242 &fops_pktlog_filter); 2243 2244 debugfs_create_file("quiet_period", 0644, ar->debug.debugfs_phy, ar, 2245 &fops_quiet_period); 2246 2247 debugfs_create_file("tpc_stats", 0400, ar->debug.debugfs_phy, ar, 2248 &fops_tpc_stats); 2249 2250 if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map)) 2251 debugfs_create_file("btcoex", 0644, ar->debug.debugfs_phy, ar, 2252 &fops_btcoex); 2253 2254 if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map)) 2255 debugfs_create_file("peer_stats", 0644, ar->debug.debugfs_phy, ar, 2256 &fops_peer_stats); 2257 2258 debugfs_create_file("fw_checksums", 0400, ar->debug.debugfs_phy, ar, 2259 &fops_fw_checksums); 2260 2261 return 0; 2262 } 2263 2264 void ath10k_debug_unregister(struct ath10k *ar) 2265 { 2266 cancel_delayed_work_sync(&ar->debug.htt_stats_dwork); 2267 } 2268 2269 #endif /* CONFIG_ATH10K_DEBUGFS */ 2270 2271 #ifdef CONFIG_ATH10K_DEBUG 2272 void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask, 2273 const char *fmt, ...) 2274 { 2275 struct va_format vaf; 2276 va_list args; 2277 2278 va_start(args, fmt); 2279 2280 vaf.fmt = fmt; 2281 vaf.va = &args; 2282 2283 if (ath10k_debug_mask & mask) 2284 dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf); 2285 2286 trace_ath10k_log_dbg(ar, mask, &vaf); 2287 2288 va_end(args); 2289 } 2290 EXPORT_SYMBOL(ath10k_dbg); 2291 2292 void ath10k_dbg_dump(struct ath10k *ar, 2293 enum ath10k_debug_mask mask, 2294 const char *msg, const char *prefix, 2295 const void *buf, size_t len) 2296 { 2297 char linebuf[256]; 2298 size_t linebuflen; 2299 const void *ptr; 2300 2301 if (ath10k_debug_mask & mask) { 2302 if (msg) 2303 ath10k_dbg(ar, mask, "%s\n", msg); 2304 2305 for (ptr = buf; (ptr - buf) < len; ptr += 16) { 2306 linebuflen = 0; 2307 linebuflen += scnprintf(linebuf + linebuflen, 2308 sizeof(linebuf) - linebuflen, 2309 "%s%08x: ", 2310 (prefix ? prefix : ""), 2311 (unsigned int)(ptr - buf)); 2312 hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1, 2313 linebuf + linebuflen, 2314 sizeof(linebuf) - linebuflen, true); 2315 dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf); 2316 } 2317 } 2318 2319 /* tracing code doesn't like null strings :/ */ 2320 trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "", 2321 buf, len); 2322 } 2323 EXPORT_SYMBOL(ath10k_dbg_dump); 2324 2325 #endif /* CONFIG_ATH10K_DEBUG */ 2326