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] = {0}; 991 unsigned int amsdu, ampdu; 992 993 res = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, 994 user_buf, count); 995 if (res <= 0) 996 return res; 997 998 res = sscanf(buf, "%u %u", &amsdu, &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] = {0}; 1047 unsigned int log_level; 1048 u64 mask; 1049 1050 ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, 1051 user_buf, count); 1052 if (ret <= 0) 1053 return ret; 1054 1055 ret = sscanf(buf, "%llx %u", &mask, &log_level); 1056 1057 if (!ret) 1058 return -EINVAL; 1059 1060 if (ret == 1) 1061 /* default if user did not specify */ 1062 log_level = ATH10K_DBGLOG_LEVEL_WARN; 1063 1064 mutex_lock(&ar->conf_mutex); 1065 1066 ar->debug.fw_dbglog_mask = mask; 1067 ar->debug.fw_dbglog_level = log_level; 1068 1069 if (ar->state == ATH10K_STATE_ON) { 1070 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask, 1071 ar->debug.fw_dbglog_level); 1072 if (ret) { 1073 ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n", 1074 ret); 1075 goto exit; 1076 } 1077 } 1078 1079 ret = count; 1080 1081 exit: 1082 mutex_unlock(&ar->conf_mutex); 1083 1084 return ret; 1085 } 1086 1087 /* TODO: Would be nice to always support ethtool stats, would need to 1088 * move the stats storage out of ath10k_debug, or always have ath10k_debug 1089 * struct available.. 1090 */ 1091 1092 /* This generally cooresponds to the debugfs fw_stats file */ 1093 static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = { 1094 "tx_pkts_nic", 1095 "tx_bytes_nic", 1096 "rx_pkts_nic", 1097 "rx_bytes_nic", 1098 "d_noise_floor", 1099 "d_cycle_count", 1100 "d_phy_error", 1101 "d_rts_bad", 1102 "d_rts_good", 1103 "d_tx_power", /* in .5 dbM I think */ 1104 "d_rx_crc_err", /* fcs_bad */ 1105 "d_no_beacon", 1106 "d_tx_mpdus_queued", 1107 "d_tx_msdu_queued", 1108 "d_tx_msdu_dropped", 1109 "d_local_enqued", 1110 "d_local_freed", 1111 "d_tx_ppdu_hw_queued", 1112 "d_tx_ppdu_reaped", 1113 "d_tx_fifo_underrun", 1114 "d_tx_ppdu_abort", 1115 "d_tx_mpdu_requed", 1116 "d_tx_excessive_retries", 1117 "d_tx_hw_rate", 1118 "d_tx_dropped_sw_retries", 1119 "d_tx_illegal_rate", 1120 "d_tx_continuous_xretries", 1121 "d_tx_timeout", 1122 "d_tx_mpdu_txop_limit", 1123 "d_pdev_resets", 1124 "d_rx_mid_ppdu_route_change", 1125 "d_rx_status", 1126 "d_rx_extra_frags_ring0", 1127 "d_rx_extra_frags_ring1", 1128 "d_rx_extra_frags_ring2", 1129 "d_rx_extra_frags_ring3", 1130 "d_rx_msdu_htt", 1131 "d_rx_mpdu_htt", 1132 "d_rx_msdu_stack", 1133 "d_rx_mpdu_stack", 1134 "d_rx_phy_err", 1135 "d_rx_phy_err_drops", 1136 "d_rx_mpdu_errors", /* FCS, MIC, ENC */ 1137 "d_fw_crash_count", 1138 "d_fw_warm_reset_count", 1139 "d_fw_cold_reset_count", 1140 }; 1141 1142 #define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats) 1143 1144 void ath10k_debug_get_et_strings(struct ieee80211_hw *hw, 1145 struct ieee80211_vif *vif, 1146 u32 sset, u8 *data) 1147 { 1148 if (sset == ETH_SS_STATS) 1149 memcpy(data, *ath10k_gstrings_stats, 1150 sizeof(ath10k_gstrings_stats)); 1151 } 1152 1153 int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw, 1154 struct ieee80211_vif *vif, int sset) 1155 { 1156 if (sset == ETH_SS_STATS) 1157 return ATH10K_SSTATS_LEN; 1158 1159 return 0; 1160 } 1161 1162 void ath10k_debug_get_et_stats(struct ieee80211_hw *hw, 1163 struct ieee80211_vif *vif, 1164 struct ethtool_stats *stats, u64 *data) 1165 { 1166 struct ath10k *ar = hw->priv; 1167 static const struct ath10k_fw_stats_pdev zero_stats = {}; 1168 const struct ath10k_fw_stats_pdev *pdev_stats; 1169 int i = 0, ret; 1170 1171 mutex_lock(&ar->conf_mutex); 1172 1173 if (ar->state == ATH10K_STATE_ON) { 1174 ret = ath10k_debug_fw_stats_request(ar); 1175 if (ret) { 1176 /* just print a warning and try to use older results */ 1177 ath10k_warn(ar, 1178 "failed to get fw stats for ethtool: %d\n", 1179 ret); 1180 } 1181 } 1182 1183 pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs, 1184 struct ath10k_fw_stats_pdev, 1185 list); 1186 if (!pdev_stats) { 1187 /* no results available so just return zeroes */ 1188 pdev_stats = &zero_stats; 1189 } 1190 1191 spin_lock_bh(&ar->data_lock); 1192 1193 data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */ 1194 data[i++] = 0; /* tx bytes */ 1195 data[i++] = pdev_stats->htt_mpdus; 1196 data[i++] = 0; /* rx bytes */ 1197 data[i++] = pdev_stats->ch_noise_floor; 1198 data[i++] = pdev_stats->cycle_count; 1199 data[i++] = pdev_stats->phy_err_count; 1200 data[i++] = pdev_stats->rts_bad; 1201 data[i++] = pdev_stats->rts_good; 1202 data[i++] = pdev_stats->chan_tx_power; 1203 data[i++] = pdev_stats->fcs_bad; 1204 data[i++] = pdev_stats->no_beacons; 1205 data[i++] = pdev_stats->mpdu_enqued; 1206 data[i++] = pdev_stats->msdu_enqued; 1207 data[i++] = pdev_stats->wmm_drop; 1208 data[i++] = pdev_stats->local_enqued; 1209 data[i++] = pdev_stats->local_freed; 1210 data[i++] = pdev_stats->hw_queued; 1211 data[i++] = pdev_stats->hw_reaped; 1212 data[i++] = pdev_stats->underrun; 1213 data[i++] = pdev_stats->tx_abort; 1214 data[i++] = pdev_stats->mpdus_requed; 1215 data[i++] = pdev_stats->tx_ko; 1216 data[i++] = pdev_stats->data_rc; 1217 data[i++] = pdev_stats->sw_retry_failure; 1218 data[i++] = pdev_stats->illgl_rate_phy_err; 1219 data[i++] = pdev_stats->pdev_cont_xretry; 1220 data[i++] = pdev_stats->pdev_tx_timeout; 1221 data[i++] = pdev_stats->txop_ovf; 1222 data[i++] = pdev_stats->pdev_resets; 1223 data[i++] = pdev_stats->mid_ppdu_route_change; 1224 data[i++] = pdev_stats->status_rcvd; 1225 data[i++] = pdev_stats->r0_frags; 1226 data[i++] = pdev_stats->r1_frags; 1227 data[i++] = pdev_stats->r2_frags; 1228 data[i++] = pdev_stats->r3_frags; 1229 data[i++] = pdev_stats->htt_msdus; 1230 data[i++] = pdev_stats->htt_mpdus; 1231 data[i++] = pdev_stats->loc_msdus; 1232 data[i++] = pdev_stats->loc_mpdus; 1233 data[i++] = pdev_stats->phy_errs; 1234 data[i++] = pdev_stats->phy_err_drop; 1235 data[i++] = pdev_stats->mpdu_errs; 1236 data[i++] = ar->stats.fw_crash_counter; 1237 data[i++] = ar->stats.fw_warm_reset_counter; 1238 data[i++] = ar->stats.fw_cold_reset_counter; 1239 1240 spin_unlock_bh(&ar->data_lock); 1241 1242 mutex_unlock(&ar->conf_mutex); 1243 1244 WARN_ON(i != ATH10K_SSTATS_LEN); 1245 } 1246 1247 static const struct file_operations fops_fw_dbglog = { 1248 .read = ath10k_read_fw_dbglog, 1249 .write = ath10k_write_fw_dbglog, 1250 .open = simple_open, 1251 .owner = THIS_MODULE, 1252 .llseek = default_llseek, 1253 }; 1254 1255 static int ath10k_debug_cal_data_fetch(struct ath10k *ar) 1256 { 1257 u32 hi_addr; 1258 __le32 addr; 1259 int ret; 1260 1261 lockdep_assert_held(&ar->conf_mutex); 1262 1263 if (WARN_ON(ar->hw_params.cal_data_len > ATH10K_DEBUG_CAL_DATA_LEN)) 1264 return -EINVAL; 1265 1266 hi_addr = host_interest_item_address(HI_ITEM(hi_board_data)); 1267 1268 ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr)); 1269 if (ret) { 1270 ath10k_warn(ar, "failed to read hi_board_data address: %d\n", 1271 ret); 1272 return ret; 1273 } 1274 1275 ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), ar->debug.cal_data, 1276 ar->hw_params.cal_data_len); 1277 if (ret) { 1278 ath10k_warn(ar, "failed to read calibration data: %d\n", ret); 1279 return ret; 1280 } 1281 1282 return 0; 1283 } 1284 1285 static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file) 1286 { 1287 struct ath10k *ar = inode->i_private; 1288 1289 mutex_lock(&ar->conf_mutex); 1290 1291 if (ar->state == ATH10K_STATE_ON || 1292 ar->state == ATH10K_STATE_UTF) { 1293 ath10k_debug_cal_data_fetch(ar); 1294 } 1295 1296 file->private_data = ar; 1297 mutex_unlock(&ar->conf_mutex); 1298 1299 return 0; 1300 } 1301 1302 static ssize_t ath10k_debug_cal_data_read(struct file *file, 1303 char __user *user_buf, 1304 size_t count, loff_t *ppos) 1305 { 1306 struct ath10k *ar = file->private_data; 1307 1308 mutex_lock(&ar->conf_mutex); 1309 1310 count = simple_read_from_buffer(user_buf, count, ppos, 1311 ar->debug.cal_data, 1312 ar->hw_params.cal_data_len); 1313 1314 mutex_unlock(&ar->conf_mutex); 1315 1316 return count; 1317 } 1318 1319 static ssize_t ath10k_write_ani_enable(struct file *file, 1320 const char __user *user_buf, 1321 size_t count, loff_t *ppos) 1322 { 1323 struct ath10k *ar = file->private_data; 1324 int ret; 1325 u8 enable; 1326 1327 if (kstrtou8_from_user(user_buf, count, 0, &enable)) 1328 return -EINVAL; 1329 1330 mutex_lock(&ar->conf_mutex); 1331 1332 if (ar->ani_enabled == enable) { 1333 ret = count; 1334 goto exit; 1335 } 1336 1337 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->ani_enable, 1338 enable); 1339 if (ret) { 1340 ath10k_warn(ar, "ani_enable failed from debugfs: %d\n", ret); 1341 goto exit; 1342 } 1343 ar->ani_enabled = enable; 1344 1345 ret = count; 1346 1347 exit: 1348 mutex_unlock(&ar->conf_mutex); 1349 1350 return ret; 1351 } 1352 1353 static ssize_t ath10k_read_ani_enable(struct file *file, char __user *user_buf, 1354 size_t count, loff_t *ppos) 1355 { 1356 struct ath10k *ar = file->private_data; 1357 size_t len; 1358 char buf[32]; 1359 1360 len = scnprintf(buf, sizeof(buf), "%d\n", ar->ani_enabled); 1361 1362 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1363 } 1364 1365 static const struct file_operations fops_ani_enable = { 1366 .read = ath10k_read_ani_enable, 1367 .write = ath10k_write_ani_enable, 1368 .open = simple_open, 1369 .owner = THIS_MODULE, 1370 .llseek = default_llseek, 1371 }; 1372 1373 static const struct file_operations fops_cal_data = { 1374 .open = ath10k_debug_cal_data_open, 1375 .read = ath10k_debug_cal_data_read, 1376 .owner = THIS_MODULE, 1377 .llseek = default_llseek, 1378 }; 1379 1380 static ssize_t ath10k_read_nf_cal_period(struct file *file, 1381 char __user *user_buf, 1382 size_t count, loff_t *ppos) 1383 { 1384 struct ath10k *ar = file->private_data; 1385 size_t len; 1386 char buf[32]; 1387 1388 len = scnprintf(buf, sizeof(buf), "%d\n", ar->debug.nf_cal_period); 1389 1390 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1391 } 1392 1393 static ssize_t ath10k_write_nf_cal_period(struct file *file, 1394 const char __user *user_buf, 1395 size_t count, loff_t *ppos) 1396 { 1397 struct ath10k *ar = file->private_data; 1398 unsigned long period; 1399 int ret; 1400 1401 ret = kstrtoul_from_user(user_buf, count, 0, &period); 1402 if (ret) 1403 return ret; 1404 1405 if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX) 1406 return -EINVAL; 1407 1408 /* there's no way to switch back to the firmware default */ 1409 if (period == 0) 1410 return -EINVAL; 1411 1412 mutex_lock(&ar->conf_mutex); 1413 1414 ar->debug.nf_cal_period = period; 1415 1416 if (ar->state != ATH10K_STATE_ON) { 1417 /* firmware is not running, nothing else to do */ 1418 ret = count; 1419 goto exit; 1420 } 1421 1422 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period, 1423 ar->debug.nf_cal_period); 1424 if (ret) { 1425 ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n", 1426 ret); 1427 goto exit; 1428 } 1429 1430 ret = count; 1431 1432 exit: 1433 mutex_unlock(&ar->conf_mutex); 1434 1435 return ret; 1436 } 1437 1438 static const struct file_operations fops_nf_cal_period = { 1439 .read = ath10k_read_nf_cal_period, 1440 .write = ath10k_write_nf_cal_period, 1441 .open = simple_open, 1442 .owner = THIS_MODULE, 1443 .llseek = default_llseek, 1444 }; 1445 1446 #define ATH10K_TPC_CONFIG_BUF_SIZE (1024 * 1024) 1447 1448 static int ath10k_debug_tpc_stats_request(struct ath10k *ar) 1449 { 1450 int ret; 1451 unsigned long time_left; 1452 1453 lockdep_assert_held(&ar->conf_mutex); 1454 1455 reinit_completion(&ar->debug.tpc_complete); 1456 1457 ret = ath10k_wmi_pdev_get_tpc_config(ar, WMI_TPC_CONFIG_PARAM); 1458 if (ret) { 1459 ath10k_warn(ar, "failed to request tpc config: %d\n", ret); 1460 return ret; 1461 } 1462 1463 time_left = wait_for_completion_timeout(&ar->debug.tpc_complete, 1464 1 * HZ); 1465 if (time_left == 0) 1466 return -ETIMEDOUT; 1467 1468 return 0; 1469 } 1470 1471 void ath10k_debug_tpc_stats_process(struct ath10k *ar, 1472 struct ath10k_tpc_stats *tpc_stats) 1473 { 1474 spin_lock_bh(&ar->data_lock); 1475 1476 kfree(ar->debug.tpc_stats); 1477 ar->debug.tpc_stats = tpc_stats; 1478 complete(&ar->debug.tpc_complete); 1479 1480 spin_unlock_bh(&ar->data_lock); 1481 } 1482 1483 void 1484 ath10k_debug_tpc_stats_final_process(struct ath10k *ar, 1485 struct ath10k_tpc_stats_final *tpc_stats) 1486 { 1487 spin_lock_bh(&ar->data_lock); 1488 1489 kfree(ar->debug.tpc_stats_final); 1490 ar->debug.tpc_stats_final = tpc_stats; 1491 complete(&ar->debug.tpc_complete); 1492 1493 spin_unlock_bh(&ar->data_lock); 1494 } 1495 1496 static void ath10k_tpc_stats_print(struct ath10k_tpc_stats *tpc_stats, 1497 unsigned int j, char *buf, size_t *len) 1498 { 1499 int i; 1500 size_t buf_len; 1501 static const char table_str[][5] = { "CDD", 1502 "STBC", 1503 "TXBF" }; 1504 static const char pream_str[][6] = { "CCK", 1505 "OFDM", 1506 "HT20", 1507 "HT40", 1508 "VHT20", 1509 "VHT40", 1510 "VHT80", 1511 "HTCUP" }; 1512 1513 buf_len = ATH10K_TPC_CONFIG_BUF_SIZE; 1514 *len += scnprintf(buf + *len, buf_len - *len, 1515 "********************************\n"); 1516 *len += scnprintf(buf + *len, buf_len - *len, 1517 "******************* %s POWER TABLE ****************\n", 1518 table_str[j]); 1519 *len += scnprintf(buf + *len, buf_len - *len, 1520 "********************************\n"); 1521 *len += scnprintf(buf + *len, buf_len - *len, 1522 "No. Preamble Rate_code "); 1523 1524 for (i = 0; i < WMI_TPC_TX_N_CHAIN; i++) 1525 *len += scnprintf(buf + *len, buf_len - *len, 1526 "tpc_value%d ", i); 1527 1528 *len += scnprintf(buf + *len, buf_len - *len, "\n"); 1529 1530 for (i = 0; i < tpc_stats->rate_max; i++) { 1531 *len += scnprintf(buf + *len, buf_len - *len, 1532 "%8d %s 0x%2x %s\n", i, 1533 pream_str[tpc_stats->tpc_table[j].pream_idx[i]], 1534 tpc_stats->tpc_table[j].rate_code[i], 1535 tpc_stats->tpc_table[j].tpc_value[i]); 1536 } 1537 1538 *len += scnprintf(buf + *len, buf_len - *len, 1539 "***********************************\n"); 1540 } 1541 1542 static void ath10k_tpc_stats_fill(struct ath10k *ar, 1543 struct ath10k_tpc_stats *tpc_stats, 1544 char *buf) 1545 { 1546 int j; 1547 size_t len, buf_len; 1548 1549 len = 0; 1550 buf_len = ATH10K_TPC_CONFIG_BUF_SIZE; 1551 1552 spin_lock_bh(&ar->data_lock); 1553 1554 if (!tpc_stats) { 1555 ath10k_warn(ar, "failed to get tpc stats\n"); 1556 goto unlock; 1557 } 1558 1559 len += scnprintf(buf + len, buf_len - len, "\n"); 1560 len += scnprintf(buf + len, buf_len - len, 1561 "*************************************\n"); 1562 len += scnprintf(buf + len, buf_len - len, 1563 "TPC config for channel %4d mode %d\n", 1564 tpc_stats->chan_freq, 1565 tpc_stats->phy_mode); 1566 len += scnprintf(buf + len, buf_len - len, 1567 "*************************************\n"); 1568 len += scnprintf(buf + len, buf_len - len, 1569 "CTL = 0x%2x Reg. Domain = %2d\n", 1570 tpc_stats->ctl, 1571 tpc_stats->reg_domain); 1572 len += scnprintf(buf + len, buf_len - len, 1573 "Antenna Gain = %2d Reg. Max Antenna Gain = %2d\n", 1574 tpc_stats->twice_antenna_gain, 1575 tpc_stats->twice_antenna_reduction); 1576 len += scnprintf(buf + len, buf_len - len, 1577 "Power Limit = %2d Reg. Max Power = %2d\n", 1578 tpc_stats->power_limit, 1579 tpc_stats->twice_max_rd_power / 2); 1580 len += scnprintf(buf + len, buf_len - len, 1581 "Num tx chains = %2d Num supported rates = %2d\n", 1582 tpc_stats->num_tx_chain, 1583 tpc_stats->rate_max); 1584 1585 for (j = 0; j < WMI_TPC_FLAG; j++) { 1586 switch (j) { 1587 case WMI_TPC_TABLE_TYPE_CDD: 1588 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) { 1589 len += scnprintf(buf + len, buf_len - len, 1590 "CDD not supported\n"); 1591 break; 1592 } 1593 1594 ath10k_tpc_stats_print(tpc_stats, j, buf, &len); 1595 break; 1596 case WMI_TPC_TABLE_TYPE_STBC: 1597 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) { 1598 len += scnprintf(buf + len, buf_len - len, 1599 "STBC not supported\n"); 1600 break; 1601 } 1602 1603 ath10k_tpc_stats_print(tpc_stats, j, buf, &len); 1604 break; 1605 case WMI_TPC_TABLE_TYPE_TXBF: 1606 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) { 1607 len += scnprintf(buf + len, buf_len - len, 1608 "TXBF not supported\n***************************\n"); 1609 break; 1610 } 1611 1612 ath10k_tpc_stats_print(tpc_stats, j, buf, &len); 1613 break; 1614 default: 1615 len += scnprintf(buf + len, buf_len - len, 1616 "Invalid Type\n"); 1617 break; 1618 } 1619 } 1620 1621 unlock: 1622 spin_unlock_bh(&ar->data_lock); 1623 1624 if (len >= buf_len) 1625 buf[len - 1] = 0; 1626 else 1627 buf[len] = 0; 1628 } 1629 1630 static int ath10k_tpc_stats_open(struct inode *inode, struct file *file) 1631 { 1632 struct ath10k *ar = inode->i_private; 1633 void *buf = NULL; 1634 int ret; 1635 1636 mutex_lock(&ar->conf_mutex); 1637 1638 if (ar->state != ATH10K_STATE_ON) { 1639 ret = -ENETDOWN; 1640 goto err_unlock; 1641 } 1642 1643 buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE); 1644 if (!buf) { 1645 ret = -ENOMEM; 1646 goto err_unlock; 1647 } 1648 1649 ret = ath10k_debug_tpc_stats_request(ar); 1650 if (ret) { 1651 ath10k_warn(ar, "failed to request tpc config stats: %d\n", 1652 ret); 1653 goto err_free; 1654 } 1655 1656 ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf); 1657 file->private_data = buf; 1658 1659 mutex_unlock(&ar->conf_mutex); 1660 return 0; 1661 1662 err_free: 1663 vfree(buf); 1664 1665 err_unlock: 1666 mutex_unlock(&ar->conf_mutex); 1667 return ret; 1668 } 1669 1670 static int ath10k_tpc_stats_release(struct inode *inode, struct file *file) 1671 { 1672 vfree(file->private_data); 1673 1674 return 0; 1675 } 1676 1677 static ssize_t ath10k_tpc_stats_read(struct file *file, char __user *user_buf, 1678 size_t count, loff_t *ppos) 1679 { 1680 const char *buf = file->private_data; 1681 size_t len = strlen(buf); 1682 1683 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 1684 } 1685 1686 static const struct file_operations fops_tpc_stats = { 1687 .open = ath10k_tpc_stats_open, 1688 .release = ath10k_tpc_stats_release, 1689 .read = ath10k_tpc_stats_read, 1690 .owner = THIS_MODULE, 1691 .llseek = default_llseek, 1692 }; 1693 1694 int ath10k_debug_start(struct ath10k *ar) 1695 { 1696 int ret; 1697 1698 lockdep_assert_held(&ar->conf_mutex); 1699 1700 ret = ath10k_debug_htt_stats_req(ar); 1701 if (ret) 1702 /* continue normally anyway, this isn't serious */ 1703 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n", 1704 ret); 1705 1706 if (ar->debug.fw_dbglog_mask) { 1707 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask, 1708 ATH10K_DBGLOG_LEVEL_WARN); 1709 if (ret) 1710 /* not serious */ 1711 ath10k_warn(ar, "failed to enable dbglog during start: %d", 1712 ret); 1713 } 1714 1715 if (ar->pktlog_filter) { 1716 ret = ath10k_wmi_pdev_pktlog_enable(ar, 1717 ar->pktlog_filter); 1718 if (ret) 1719 /* not serious */ 1720 ath10k_warn(ar, 1721 "failed to enable pktlog filter %x: %d\n", 1722 ar->pktlog_filter, ret); 1723 } else { 1724 ret = ath10k_wmi_pdev_pktlog_disable(ar); 1725 if (ret) 1726 /* not serious */ 1727 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret); 1728 } 1729 1730 if (ar->debug.nf_cal_period) { 1731 ret = ath10k_wmi_pdev_set_param(ar, 1732 ar->wmi.pdev_param->cal_period, 1733 ar->debug.nf_cal_period); 1734 if (ret) 1735 /* not serious */ 1736 ath10k_warn(ar, "cal period cfg failed from debug start: %d\n", 1737 ret); 1738 } 1739 1740 return ret; 1741 } 1742 1743 void ath10k_debug_stop(struct ath10k *ar) 1744 { 1745 lockdep_assert_held(&ar->conf_mutex); 1746 1747 ath10k_debug_cal_data_fetch(ar); 1748 1749 /* Must not use _sync to avoid deadlock, we do that in 1750 * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid 1751 * warning from del_timer(). 1752 */ 1753 if (ar->debug.htt_stats_mask != 0) 1754 cancel_delayed_work(&ar->debug.htt_stats_dwork); 1755 1756 ath10k_wmi_pdev_pktlog_disable(ar); 1757 } 1758 1759 static ssize_t ath10k_write_simulate_radar(struct file *file, 1760 const char __user *user_buf, 1761 size_t count, loff_t *ppos) 1762 { 1763 struct ath10k *ar = file->private_data; 1764 struct ath10k_vif *arvif; 1765 1766 /* Just check for for the first vif alone, as all the vifs will be 1767 * sharing the same channel and if the channel is disabled, all the 1768 * vifs will share the same 'is_started' state. 1769 */ 1770 arvif = list_first_entry(&ar->arvifs, typeof(*arvif), list); 1771 if (!arvif->is_started) 1772 return -EINVAL; 1773 1774 ieee80211_radar_detected(ar->hw); 1775 1776 return count; 1777 } 1778 1779 static const struct file_operations fops_simulate_radar = { 1780 .write = ath10k_write_simulate_radar, 1781 .open = simple_open, 1782 .owner = THIS_MODULE, 1783 .llseek = default_llseek, 1784 }; 1785 1786 #define ATH10K_DFS_STAT(s, p) (\ 1787 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \ 1788 ar->debug.dfs_stats.p)) 1789 1790 #define ATH10K_DFS_POOL_STAT(s, p) (\ 1791 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \ 1792 ar->debug.dfs_pool_stats.p)) 1793 1794 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf, 1795 size_t count, loff_t *ppos) 1796 { 1797 int retval = 0, len = 0; 1798 const int size = 8000; 1799 struct ath10k *ar = file->private_data; 1800 char *buf; 1801 1802 buf = kzalloc(size, GFP_KERNEL); 1803 if (buf == NULL) 1804 return -ENOMEM; 1805 1806 if (!ar->dfs_detector) { 1807 len += scnprintf(buf + len, size - len, "DFS not enabled\n"); 1808 goto exit; 1809 } 1810 1811 ar->debug.dfs_pool_stats = 1812 ar->dfs_detector->get_stats(ar->dfs_detector); 1813 1814 len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n"); 1815 1816 ATH10K_DFS_STAT("reported phy errors", phy_errors); 1817 ATH10K_DFS_STAT("pulse events reported", pulses_total); 1818 ATH10K_DFS_STAT("DFS pulses detected", pulses_detected); 1819 ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded); 1820 ATH10K_DFS_STAT("Radars detected", radar_detected); 1821 1822 len += scnprintf(buf + len, size - len, "Global Pool statistics:\n"); 1823 ATH10K_DFS_POOL_STAT("Pool references", pool_reference); 1824 ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated); 1825 ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error); 1826 ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used); 1827 ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated); 1828 ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error); 1829 ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used); 1830 1831 exit: 1832 if (len > size) 1833 len = size; 1834 1835 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); 1836 kfree(buf); 1837 1838 return retval; 1839 } 1840 1841 static const struct file_operations fops_dfs_stats = { 1842 .read = ath10k_read_dfs_stats, 1843 .open = simple_open, 1844 .owner = THIS_MODULE, 1845 .llseek = default_llseek, 1846 }; 1847 1848 static ssize_t ath10k_write_pktlog_filter(struct file *file, 1849 const char __user *ubuf, 1850 size_t count, loff_t *ppos) 1851 { 1852 struct ath10k *ar = file->private_data; 1853 u32 filter; 1854 int ret; 1855 1856 if (kstrtouint_from_user(ubuf, count, 0, &filter)) 1857 return -EINVAL; 1858 1859 mutex_lock(&ar->conf_mutex); 1860 1861 if (ar->state != ATH10K_STATE_ON) { 1862 ar->pktlog_filter = filter; 1863 ret = count; 1864 goto out; 1865 } 1866 1867 if (filter == ar->pktlog_filter) { 1868 ret = count; 1869 goto out; 1870 } 1871 1872 if (filter) { 1873 ret = ath10k_wmi_pdev_pktlog_enable(ar, filter); 1874 if (ret) { 1875 ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n", 1876 ar->pktlog_filter, ret); 1877 goto out; 1878 } 1879 } else { 1880 ret = ath10k_wmi_pdev_pktlog_disable(ar); 1881 if (ret) { 1882 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret); 1883 goto out; 1884 } 1885 } 1886 1887 ar->pktlog_filter = filter; 1888 ret = count; 1889 1890 out: 1891 mutex_unlock(&ar->conf_mutex); 1892 return ret; 1893 } 1894 1895 static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf, 1896 size_t count, loff_t *ppos) 1897 { 1898 char buf[32]; 1899 struct ath10k *ar = file->private_data; 1900 int len = 0; 1901 1902 mutex_lock(&ar->conf_mutex); 1903 len = scnprintf(buf, sizeof(buf) - len, "%08x\n", 1904 ar->pktlog_filter); 1905 mutex_unlock(&ar->conf_mutex); 1906 1907 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 1908 } 1909 1910 static const struct file_operations fops_pktlog_filter = { 1911 .read = ath10k_read_pktlog_filter, 1912 .write = ath10k_write_pktlog_filter, 1913 .open = simple_open 1914 }; 1915 1916 static ssize_t ath10k_write_quiet_period(struct file *file, 1917 const char __user *ubuf, 1918 size_t count, loff_t *ppos) 1919 { 1920 struct ath10k *ar = file->private_data; 1921 u32 period; 1922 1923 if (kstrtouint_from_user(ubuf, count, 0, &period)) 1924 return -EINVAL; 1925 1926 if (period < ATH10K_QUIET_PERIOD_MIN) { 1927 ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n", 1928 period); 1929 return -EINVAL; 1930 } 1931 mutex_lock(&ar->conf_mutex); 1932 ar->thermal.quiet_period = period; 1933 ath10k_thermal_set_throttling(ar); 1934 mutex_unlock(&ar->conf_mutex); 1935 1936 return count; 1937 } 1938 1939 static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf, 1940 size_t count, loff_t *ppos) 1941 { 1942 char buf[32]; 1943 struct ath10k *ar = file->private_data; 1944 int len = 0; 1945 1946 mutex_lock(&ar->conf_mutex); 1947 len = scnprintf(buf, sizeof(buf) - len, "%d\n", 1948 ar->thermal.quiet_period); 1949 mutex_unlock(&ar->conf_mutex); 1950 1951 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 1952 } 1953 1954 static const struct file_operations fops_quiet_period = { 1955 .read = ath10k_read_quiet_period, 1956 .write = ath10k_write_quiet_period, 1957 .open = simple_open 1958 }; 1959 1960 static ssize_t ath10k_write_btcoex(struct file *file, 1961 const char __user *ubuf, 1962 size_t count, loff_t *ppos) 1963 { 1964 struct ath10k *ar = file->private_data; 1965 char buf[32]; 1966 size_t buf_size; 1967 int ret; 1968 bool val; 1969 u32 pdev_param; 1970 1971 buf_size = min(count, (sizeof(buf) - 1)); 1972 if (copy_from_user(buf, ubuf, buf_size)) 1973 return -EFAULT; 1974 1975 buf[buf_size] = '\0'; 1976 1977 if (strtobool(buf, &val) != 0) 1978 return -EINVAL; 1979 1980 mutex_lock(&ar->conf_mutex); 1981 1982 if (ar->state != ATH10K_STATE_ON && 1983 ar->state != ATH10K_STATE_RESTARTED) { 1984 ret = -ENETDOWN; 1985 goto exit; 1986 } 1987 1988 if (!(test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags) ^ val)) { 1989 ret = count; 1990 goto exit; 1991 } 1992 1993 pdev_param = ar->wmi.pdev_param->enable_btcoex; 1994 if (test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM, 1995 ar->running_fw->fw_file.fw_features)) { 1996 ret = ath10k_wmi_pdev_set_param(ar, pdev_param, val); 1997 if (ret) { 1998 ath10k_warn(ar, "failed to enable btcoex: %d\n", ret); 1999 ret = count; 2000 goto exit; 2001 } 2002 } else { 2003 ath10k_info(ar, "restarting firmware due to btcoex change"); 2004 queue_work(ar->workqueue, &ar->restart_work); 2005 } 2006 2007 if (val) 2008 set_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags); 2009 else 2010 clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags); 2011 2012 ret = count; 2013 2014 exit: 2015 mutex_unlock(&ar->conf_mutex); 2016 2017 return ret; 2018 } 2019 2020 static ssize_t ath10k_read_btcoex(struct file *file, char __user *ubuf, 2021 size_t count, loff_t *ppos) 2022 { 2023 char buf[32]; 2024 struct ath10k *ar = file->private_data; 2025 int len = 0; 2026 2027 mutex_lock(&ar->conf_mutex); 2028 len = scnprintf(buf, sizeof(buf) - len, "%d\n", 2029 test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags)); 2030 mutex_unlock(&ar->conf_mutex); 2031 2032 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 2033 } 2034 2035 static const struct file_operations fops_btcoex = { 2036 .read = ath10k_read_btcoex, 2037 .write = ath10k_write_btcoex, 2038 .open = simple_open 2039 }; 2040 2041 static ssize_t ath10k_write_peer_stats(struct file *file, 2042 const char __user *ubuf, 2043 size_t count, loff_t *ppos) 2044 { 2045 struct ath10k *ar = file->private_data; 2046 char buf[32]; 2047 size_t buf_size; 2048 int ret; 2049 bool val; 2050 2051 buf_size = min(count, (sizeof(buf) - 1)); 2052 if (copy_from_user(buf, ubuf, buf_size)) 2053 return -EFAULT; 2054 2055 buf[buf_size] = '\0'; 2056 2057 if (strtobool(buf, &val) != 0) 2058 return -EINVAL; 2059 2060 mutex_lock(&ar->conf_mutex); 2061 2062 if (ar->state != ATH10K_STATE_ON && 2063 ar->state != ATH10K_STATE_RESTARTED) { 2064 ret = -ENETDOWN; 2065 goto exit; 2066 } 2067 2068 if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val)) { 2069 ret = count; 2070 goto exit; 2071 } 2072 2073 if (val) 2074 set_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags); 2075 else 2076 clear_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags); 2077 2078 ath10k_info(ar, "restarting firmware due to Peer stats change"); 2079 2080 queue_work(ar->workqueue, &ar->restart_work); 2081 ret = count; 2082 2083 exit: 2084 mutex_unlock(&ar->conf_mutex); 2085 return ret; 2086 } 2087 2088 static ssize_t ath10k_read_peer_stats(struct file *file, char __user *ubuf, 2089 size_t count, loff_t *ppos) 2090 2091 { 2092 char buf[32]; 2093 struct ath10k *ar = file->private_data; 2094 int len = 0; 2095 2096 mutex_lock(&ar->conf_mutex); 2097 len = scnprintf(buf, sizeof(buf) - len, "%d\n", 2098 test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags)); 2099 mutex_unlock(&ar->conf_mutex); 2100 2101 return simple_read_from_buffer(ubuf, count, ppos, buf, len); 2102 } 2103 2104 static const struct file_operations fops_peer_stats = { 2105 .read = ath10k_read_peer_stats, 2106 .write = ath10k_write_peer_stats, 2107 .open = simple_open 2108 }; 2109 2110 static ssize_t ath10k_debug_fw_checksums_read(struct file *file, 2111 char __user *user_buf, 2112 size_t count, loff_t *ppos) 2113 { 2114 struct ath10k *ar = file->private_data; 2115 size_t len = 0, buf_len = 4096; 2116 ssize_t ret_cnt; 2117 char *buf; 2118 2119 buf = kzalloc(buf_len, GFP_KERNEL); 2120 if (!buf) 2121 return -ENOMEM; 2122 2123 mutex_lock(&ar->conf_mutex); 2124 2125 len += scnprintf(buf + len, buf_len - len, 2126 "firmware-N.bin\t\t%08x\n", 2127 crc32_le(0, ar->normal_mode_fw.fw_file.firmware->data, 2128 ar->normal_mode_fw.fw_file.firmware->size)); 2129 len += scnprintf(buf + len, buf_len - len, 2130 "athwlan\t\t\t%08x\n", 2131 crc32_le(0, ar->normal_mode_fw.fw_file.firmware_data, 2132 ar->normal_mode_fw.fw_file.firmware_len)); 2133 len += scnprintf(buf + len, buf_len - len, 2134 "otp\t\t\t%08x\n", 2135 crc32_le(0, ar->normal_mode_fw.fw_file.otp_data, 2136 ar->normal_mode_fw.fw_file.otp_len)); 2137 len += scnprintf(buf + len, buf_len - len, 2138 "codeswap\t\t%08x\n", 2139 crc32_le(0, ar->normal_mode_fw.fw_file.codeswap_data, 2140 ar->normal_mode_fw.fw_file.codeswap_len)); 2141 len += scnprintf(buf + len, buf_len - len, 2142 "board-N.bin\t\t%08x\n", 2143 crc32_le(0, ar->normal_mode_fw.board->data, 2144 ar->normal_mode_fw.board->size)); 2145 len += scnprintf(buf + len, buf_len - len, 2146 "board\t\t\t%08x\n", 2147 crc32_le(0, ar->normal_mode_fw.board_data, 2148 ar->normal_mode_fw.board_len)); 2149 2150 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len); 2151 2152 mutex_unlock(&ar->conf_mutex); 2153 2154 kfree(buf); 2155 return ret_cnt; 2156 } 2157 2158 static const struct file_operations fops_fw_checksums = { 2159 .read = ath10k_debug_fw_checksums_read, 2160 .open = simple_open, 2161 .owner = THIS_MODULE, 2162 .llseek = default_llseek, 2163 }; 2164 2165 static ssize_t ath10k_sta_tid_stats_mask_read(struct file *file, 2166 char __user *user_buf, 2167 size_t count, loff_t *ppos) 2168 { 2169 struct ath10k *ar = file->private_data; 2170 char buf[32]; 2171 size_t len; 2172 2173 len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->sta_tid_stats_mask); 2174 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 2175 } 2176 2177 static ssize_t ath10k_sta_tid_stats_mask_write(struct file *file, 2178 const char __user *user_buf, 2179 size_t count, loff_t *ppos) 2180 { 2181 struct ath10k *ar = file->private_data; 2182 char buf[32]; 2183 ssize_t len; 2184 u32 mask; 2185 2186 len = min(count, sizeof(buf) - 1); 2187 if (copy_from_user(buf, user_buf, len)) 2188 return -EFAULT; 2189 2190 buf[len] = '\0'; 2191 if (kstrtoint(buf, 0, &mask)) 2192 return -EINVAL; 2193 2194 ar->sta_tid_stats_mask = mask; 2195 2196 return len; 2197 } 2198 2199 static const struct file_operations fops_sta_tid_stats_mask = { 2200 .read = ath10k_sta_tid_stats_mask_read, 2201 .write = ath10k_sta_tid_stats_mask_write, 2202 .open = simple_open, 2203 .owner = THIS_MODULE, 2204 .llseek = default_llseek, 2205 }; 2206 2207 static int ath10k_debug_tpc_stats_final_request(struct ath10k *ar) 2208 { 2209 int ret; 2210 unsigned long time_left; 2211 2212 lockdep_assert_held(&ar->conf_mutex); 2213 2214 reinit_completion(&ar->debug.tpc_complete); 2215 2216 ret = ath10k_wmi_pdev_get_tpc_table_cmdid(ar, WMI_TPC_CONFIG_PARAM); 2217 if (ret) { 2218 ath10k_warn(ar, "failed to request tpc table cmdid: %d\n", ret); 2219 return ret; 2220 } 2221 2222 time_left = wait_for_completion_timeout(&ar->debug.tpc_complete, 2223 1 * HZ); 2224 if (time_left == 0) 2225 return -ETIMEDOUT; 2226 2227 return 0; 2228 } 2229 2230 static int ath10k_tpc_stats_final_open(struct inode *inode, struct file *file) 2231 { 2232 struct ath10k *ar = inode->i_private; 2233 void *buf; 2234 int ret; 2235 2236 mutex_lock(&ar->conf_mutex); 2237 2238 if (ar->state != ATH10K_STATE_ON) { 2239 ret = -ENETDOWN; 2240 goto err_unlock; 2241 } 2242 2243 buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE); 2244 if (!buf) { 2245 ret = -ENOMEM; 2246 goto err_unlock; 2247 } 2248 2249 ret = ath10k_debug_tpc_stats_final_request(ar); 2250 if (ret) { 2251 ath10k_warn(ar, "failed to request tpc stats final: %d\n", 2252 ret); 2253 goto err_free; 2254 } 2255 2256 ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf); 2257 file->private_data = buf; 2258 2259 mutex_unlock(&ar->conf_mutex); 2260 return 0; 2261 2262 err_free: 2263 vfree(buf); 2264 2265 err_unlock: 2266 mutex_unlock(&ar->conf_mutex); 2267 return ret; 2268 } 2269 2270 static int ath10k_tpc_stats_final_release(struct inode *inode, 2271 struct file *file) 2272 { 2273 vfree(file->private_data); 2274 2275 return 0; 2276 } 2277 2278 static ssize_t ath10k_tpc_stats_final_read(struct file *file, 2279 char __user *user_buf, 2280 size_t count, loff_t *ppos) 2281 { 2282 const char *buf = file->private_data; 2283 unsigned int len = strlen(buf); 2284 2285 return simple_read_from_buffer(user_buf, count, ppos, buf, len); 2286 } 2287 2288 static const struct file_operations fops_tpc_stats_final = { 2289 .open = ath10k_tpc_stats_final_open, 2290 .release = ath10k_tpc_stats_final_release, 2291 .read = ath10k_tpc_stats_final_read, 2292 .owner = THIS_MODULE, 2293 .llseek = default_llseek, 2294 }; 2295 2296 int ath10k_debug_create(struct ath10k *ar) 2297 { 2298 ar->debug.cal_data = vzalloc(ATH10K_DEBUG_CAL_DATA_LEN); 2299 if (!ar->debug.cal_data) 2300 return -ENOMEM; 2301 2302 INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs); 2303 INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs); 2304 INIT_LIST_HEAD(&ar->debug.fw_stats.peers); 2305 INIT_LIST_HEAD(&ar->debug.fw_stats.peers_extd); 2306 2307 return 0; 2308 } 2309 2310 void ath10k_debug_destroy(struct ath10k *ar) 2311 { 2312 vfree(ar->debug.cal_data); 2313 ar->debug.cal_data = NULL; 2314 2315 ath10k_debug_fw_stats_reset(ar); 2316 2317 kfree(ar->debug.tpc_stats); 2318 } 2319 2320 int ath10k_debug_register(struct ath10k *ar) 2321 { 2322 ar->debug.debugfs_phy = debugfs_create_dir("ath10k", 2323 ar->hw->wiphy->debugfsdir); 2324 if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) { 2325 if (IS_ERR(ar->debug.debugfs_phy)) 2326 return PTR_ERR(ar->debug.debugfs_phy); 2327 2328 return -ENOMEM; 2329 } 2330 2331 INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork, 2332 ath10k_debug_htt_stats_dwork); 2333 2334 init_completion(&ar->debug.tpc_complete); 2335 init_completion(&ar->debug.fw_stats_complete); 2336 2337 debugfs_create_file("fw_stats", 0400, ar->debug.debugfs_phy, ar, 2338 &fops_fw_stats); 2339 2340 debugfs_create_file("fw_reset_stats", 0400, ar->debug.debugfs_phy, ar, 2341 &fops_fw_reset_stats); 2342 2343 debugfs_create_file("wmi_services", 0400, ar->debug.debugfs_phy, ar, 2344 &fops_wmi_services); 2345 2346 debugfs_create_file("simulate_fw_crash", 0600, ar->debug.debugfs_phy, ar, 2347 &fops_simulate_fw_crash); 2348 2349 debugfs_create_file("reg_addr", 0600, ar->debug.debugfs_phy, ar, 2350 &fops_reg_addr); 2351 2352 debugfs_create_file("reg_value", 0600, ar->debug.debugfs_phy, ar, 2353 &fops_reg_value); 2354 2355 debugfs_create_file("mem_value", 0600, ar->debug.debugfs_phy, ar, 2356 &fops_mem_value); 2357 2358 debugfs_create_file("chip_id", 0400, ar->debug.debugfs_phy, ar, 2359 &fops_chip_id); 2360 2361 debugfs_create_file("htt_stats_mask", 0600, ar->debug.debugfs_phy, ar, 2362 &fops_htt_stats_mask); 2363 2364 debugfs_create_file("htt_max_amsdu_ampdu", 0600, ar->debug.debugfs_phy, ar, 2365 &fops_htt_max_amsdu_ampdu); 2366 2367 debugfs_create_file("fw_dbglog", 0600, ar->debug.debugfs_phy, ar, 2368 &fops_fw_dbglog); 2369 2370 debugfs_create_file("cal_data", 0400, ar->debug.debugfs_phy, ar, 2371 &fops_cal_data); 2372 2373 debugfs_create_file("ani_enable", 0600, ar->debug.debugfs_phy, ar, 2374 &fops_ani_enable); 2375 2376 debugfs_create_file("nf_cal_period", 0600, ar->debug.debugfs_phy, ar, 2377 &fops_nf_cal_period); 2378 2379 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED)) { 2380 debugfs_create_file("dfs_simulate_radar", 0200, ar->debug.debugfs_phy, 2381 ar, &fops_simulate_radar); 2382 2383 debugfs_create_bool("dfs_block_radar_events", 0200, 2384 ar->debug.debugfs_phy, 2385 &ar->dfs_block_radar_events); 2386 2387 debugfs_create_file("dfs_stats", 0400, ar->debug.debugfs_phy, ar, 2388 &fops_dfs_stats); 2389 } 2390 2391 debugfs_create_file("pktlog_filter", 0644, ar->debug.debugfs_phy, ar, 2392 &fops_pktlog_filter); 2393 2394 debugfs_create_file("quiet_period", 0644, ar->debug.debugfs_phy, ar, 2395 &fops_quiet_period); 2396 2397 debugfs_create_file("tpc_stats", 0400, ar->debug.debugfs_phy, ar, 2398 &fops_tpc_stats); 2399 2400 if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map)) 2401 debugfs_create_file("btcoex", 0644, ar->debug.debugfs_phy, ar, 2402 &fops_btcoex); 2403 2404 if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map)) 2405 debugfs_create_file("peer_stats", 0644, ar->debug.debugfs_phy, ar, 2406 &fops_peer_stats); 2407 2408 debugfs_create_file("fw_checksums", 0400, ar->debug.debugfs_phy, ar, 2409 &fops_fw_checksums); 2410 2411 if (IS_ENABLED(CONFIG_MAC80211_DEBUGFS)) 2412 debugfs_create_file("sta_tid_stats_mask", 0600, 2413 ar->debug.debugfs_phy, 2414 ar, &fops_sta_tid_stats_mask); 2415 2416 if (test_bit(WMI_SERVICE_TPC_STATS_FINAL, ar->wmi.svc_map)) 2417 debugfs_create_file("tpc_stats_final", 0400, 2418 ar->debug.debugfs_phy, ar, 2419 &fops_tpc_stats_final); 2420 2421 return 0; 2422 } 2423 2424 void ath10k_debug_unregister(struct ath10k *ar) 2425 { 2426 cancel_delayed_work_sync(&ar->debug.htt_stats_dwork); 2427 } 2428 2429 #endif /* CONFIG_ATH10K_DEBUGFS */ 2430 2431 #ifdef CONFIG_ATH10K_DEBUG 2432 void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask, 2433 const char *fmt, ...) 2434 { 2435 struct va_format vaf; 2436 va_list args; 2437 2438 va_start(args, fmt); 2439 2440 vaf.fmt = fmt; 2441 vaf.va = &args; 2442 2443 if (ath10k_debug_mask & mask) 2444 dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf); 2445 2446 trace_ath10k_log_dbg(ar, mask, &vaf); 2447 2448 va_end(args); 2449 } 2450 EXPORT_SYMBOL(ath10k_dbg); 2451 2452 void ath10k_dbg_dump(struct ath10k *ar, 2453 enum ath10k_debug_mask mask, 2454 const char *msg, const char *prefix, 2455 const void *buf, size_t len) 2456 { 2457 char linebuf[256]; 2458 size_t linebuflen; 2459 const void *ptr; 2460 2461 if (ath10k_debug_mask & mask) { 2462 if (msg) 2463 ath10k_dbg(ar, mask, "%s\n", msg); 2464 2465 for (ptr = buf; (ptr - buf) < len; ptr += 16) { 2466 linebuflen = 0; 2467 linebuflen += scnprintf(linebuf + linebuflen, 2468 sizeof(linebuf) - linebuflen, 2469 "%s%08x: ", 2470 (prefix ? prefix : ""), 2471 (unsigned int)(ptr - buf)); 2472 hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1, 2473 linebuf + linebuflen, 2474 sizeof(linebuf) - linebuflen, true); 2475 dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf); 2476 } 2477 } 2478 2479 /* tracing code doesn't like null strings :/ */ 2480 trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "", 2481 buf, len); 2482 } 2483 EXPORT_SYMBOL(ath10k_dbg_dump); 2484 2485 #endif /* CONFIG_ATH10K_DEBUG */ 2486