1// SPDX-License-Identifier: ISC
   2/*
   3 * Copyright (c) 2005-2011 Atheros Communications Inc.
   4 * Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
   5 * Copyright (c) 2018, The Linux Foundation. All rights reserved.
   6 * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
 
 
 
 
 
 
 
 
 
 
 
   7 */
   8
   9#include <linux/module.h>
  10#include <linux/debugfs.h>
  11#include <linux/vmalloc.h>
  12#include <linux/crc32.h>
  13#include <linux/firmware.h>
  14#include <linux/kstrtox.h>
  15
  16#include "core.h"
  17#include "debug.h"
  18#include "hif.h"
  19#include "wmi-ops.h"
  20
  21/* ms */
  22#define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000
  23
  24#define ATH10K_DEBUG_CAL_DATA_LEN 12064
  25
  26void ath10k_info(struct ath10k *ar, const char *fmt, ...)
  27{
  28	struct va_format vaf = {
  29		.fmt = fmt,
  30	};
  31	va_list args;
  32
  33	va_start(args, fmt);
  34	vaf.va = &args;
  35	dev_info(ar->dev, "%pV", &vaf);
  36	trace_ath10k_log_info(ar, &vaf);
  37	va_end(args);
  38}
  39EXPORT_SYMBOL(ath10k_info);
  40
  41void ath10k_debug_print_hwfw_info(struct ath10k *ar)
  42{
  43	const struct firmware *firmware;
  44	char fw_features[128] = {};
  45	u32 crc = 0;
  46
  47	ath10k_core_get_fw_features_str(ar, fw_features, sizeof(fw_features));
  48
  49	ath10k_info(ar, "%s target 0x%08x chip_id 0x%08x sub %04x:%04x",
  50		    ar->hw_params.name,
  51		    ar->target_version,
  52		    ar->bus_param.chip_id,
  53		    ar->id.subsystem_vendor, ar->id.subsystem_device);
  54
  55	ath10k_info(ar, "kconfig debug %d debugfs %d tracing %d dfs %d testmode %d\n",
  56		    IS_ENABLED(CONFIG_ATH10K_DEBUG),
  57		    IS_ENABLED(CONFIG_ATH10K_DEBUGFS),
  58		    IS_ENABLED(CONFIG_ATH10K_TRACING),
  59		    IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED),
  60		    IS_ENABLED(CONFIG_NL80211_TESTMODE));
  61
  62	firmware = ar->normal_mode_fw.fw_file.firmware;
  63	if (firmware)
  64		crc = crc32_le(0, firmware->data, firmware->size);
  65
  66	ath10k_info(ar, "firmware ver %s api %d features %s crc32 %08x\n",
  67		    ar->hw->wiphy->fw_version,
  68		    ar->fw_api,
  69		    fw_features,
  70		    crc);
  71}
  72
  73void ath10k_debug_print_board_info(struct ath10k *ar)
  74{
  75	char boardinfo[100];
  76	const struct firmware *board;
  77	u32 crc;
  78
  79	if (ar->id.bmi_ids_valid)
  80		scnprintf(boardinfo, sizeof(boardinfo), "%d:%d",
  81			  ar->id.bmi_chip_id, ar->id.bmi_board_id);
  82	else
  83		scnprintf(boardinfo, sizeof(boardinfo), "N/A");
  84
  85	board = ar->normal_mode_fw.board;
  86	if (!IS_ERR_OR_NULL(board))
  87		crc = crc32_le(0, board->data, board->size);
  88	else
  89		crc = 0;
  90
  91	ath10k_info(ar, "board_file api %d bmi_id %s crc32 %08x",
  92		    ar->bd_api,
  93		    boardinfo,
  94		    crc);
  95}
  96
  97void ath10k_debug_print_boot_info(struct ath10k *ar)
  98{
  99	ath10k_info(ar, "htt-ver %d.%d wmi-op %d htt-op %d cal %s max-sta %d raw %d hwcrypto %d\n",
 100		    ar->htt.target_version_major,
 101		    ar->htt.target_version_minor,
 102		    ar->normal_mode_fw.fw_file.wmi_op_version,
 103		    ar->normal_mode_fw.fw_file.htt_op_version,
 104		    ath10k_cal_mode_str(ar->cal_mode),
 105		    ar->max_num_stations,
 106		    test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags),
 107		    !test_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags));
 108}
 109
 110void ath10k_print_driver_info(struct ath10k *ar)
 111{
 112	ath10k_debug_print_hwfw_info(ar);
 113	ath10k_debug_print_board_info(ar);
 114	ath10k_debug_print_boot_info(ar);
 115}
 116EXPORT_SYMBOL(ath10k_print_driver_info);
 117
 118void ath10k_err(struct ath10k *ar, const char *fmt, ...)
 119{
 120	struct va_format vaf = {
 121		.fmt = fmt,
 122	};
 123	va_list args;
 124
 125	va_start(args, fmt);
 126	vaf.va = &args;
 127	dev_err(ar->dev, "%pV", &vaf);
 128	trace_ath10k_log_err(ar, &vaf);
 129	va_end(args);
 130}
 131EXPORT_SYMBOL(ath10k_err);
 132
 133void ath10k_warn(struct ath10k *ar, const char *fmt, ...)
 134{
 135	struct va_format vaf = {
 136		.fmt = fmt,
 137	};
 138	va_list args;
 139
 140	va_start(args, fmt);
 141	vaf.va = &args;
 142	dev_warn_ratelimited(ar->dev, "%pV", &vaf);
 143	trace_ath10k_log_warn(ar, &vaf);
 144
 145	va_end(args);
 146}
 147EXPORT_SYMBOL(ath10k_warn);
 148
 149#ifdef CONFIG_ATH10K_DEBUGFS
 150
 151static ssize_t ath10k_read_wmi_services(struct file *file,
 152					char __user *user_buf,
 153					size_t count, loff_t *ppos)
 154{
 155	struct ath10k *ar = file->private_data;
 156	char *buf;
 157	size_t len = 0, buf_len = 8192;
 158	const char *name;
 159	ssize_t ret_cnt;
 160	bool enabled;
 161	int i;
 162
 163	buf = kzalloc(buf_len, GFP_KERNEL);
 164	if (!buf)
 165		return -ENOMEM;
 166
 167	mutex_lock(&ar->conf_mutex);
 168
 169	spin_lock_bh(&ar->data_lock);
 170	for (i = 0; i < WMI_SERVICE_MAX; i++) {
 171		enabled = test_bit(i, ar->wmi.svc_map);
 172		name = wmi_service_name(i);
 173
 174		if (!name) {
 175			if (enabled)
 176				len += scnprintf(buf + len, buf_len - len,
 177						 "%-40s %s (bit %d)\n",
 178						 "unknown", "enabled", i);
 179
 180			continue;
 181		}
 182
 183		len += scnprintf(buf + len, buf_len - len,
 184				 "%-40s %s\n",
 185				 name, enabled ? "enabled" : "-");
 186	}
 187	spin_unlock_bh(&ar->data_lock);
 188
 189	ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 190
 191	mutex_unlock(&ar->conf_mutex);
 192
 193	kfree(buf);
 194	return ret_cnt;
 195}
 196
 197static const struct file_operations fops_wmi_services = {
 198	.read = ath10k_read_wmi_services,
 199	.open = simple_open,
 200	.owner = THIS_MODULE,
 201	.llseek = default_llseek,
 202};
 203
 204static void ath10k_fw_stats_pdevs_free(struct list_head *head)
 205{
 206	struct ath10k_fw_stats_pdev *i, *tmp;
 207
 208	list_for_each_entry_safe(i, tmp, head, list) {
 209		list_del(&i->list);
 210		kfree(i);
 211	}
 212}
 213
 214static void ath10k_fw_stats_vdevs_free(struct list_head *head)
 215{
 216	struct ath10k_fw_stats_vdev *i, *tmp;
 217
 218	list_for_each_entry_safe(i, tmp, head, list) {
 219		list_del(&i->list);
 220		kfree(i);
 221	}
 222}
 223
 224static void ath10k_fw_stats_peers_free(struct list_head *head)
 225{
 226	struct ath10k_fw_stats_peer *i, *tmp;
 227
 228	list_for_each_entry_safe(i, tmp, head, list) {
 229		list_del(&i->list);
 230		kfree(i);
 231	}
 232}
 233
 234static void ath10k_fw_extd_stats_peers_free(struct list_head *head)
 235{
 236	struct ath10k_fw_extd_stats_peer *i, *tmp;
 237
 238	list_for_each_entry_safe(i, tmp, head, list) {
 239		list_del(&i->list);
 240		kfree(i);
 241	}
 242}
 243
 244static void ath10k_debug_fw_stats_reset(struct ath10k *ar)
 245{
 246	spin_lock_bh(&ar->data_lock);
 247	ar->debug.fw_stats_done = false;
 248	ar->debug.fw_stats.extended = false;
 249	ath10k_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs);
 250	ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
 251	ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers);
 252	ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd);
 253	spin_unlock_bh(&ar->data_lock);
 254}
 255
 256void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
 257{
 258	struct ath10k_fw_stats stats = {};
 259	bool is_start, is_started, is_end;
 260	size_t num_peers;
 261	size_t num_vdevs;
 262	int ret;
 263
 264	INIT_LIST_HEAD(&stats.pdevs);
 265	INIT_LIST_HEAD(&stats.vdevs);
 266	INIT_LIST_HEAD(&stats.peers);
 267	INIT_LIST_HEAD(&stats.peers_extd);
 268
 269	spin_lock_bh(&ar->data_lock);
 270	ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats);
 271	if (ret) {
 272		ath10k_warn(ar, "failed to pull fw stats: %d\n", ret);
 273		goto free;
 274	}
 275
 276	/* Stat data may exceed htc-wmi buffer limit. In such case firmware
 277	 * splits the stats data and delivers it in a ping-pong fashion of
 278	 * request cmd-update event.
 279	 *
 280	 * However there is no explicit end-of-data. Instead start-of-data is
 281	 * used as an implicit one. This works as follows:
 282	 *  a) discard stat update events until one with pdev stats is
 283	 *     delivered - this skips session started at end of (b)
 284	 *  b) consume stat update events until another one with pdev stats is
 285	 *     delivered which is treated as end-of-data and is itself discarded
 286	 */
 287	if (ath10k_peer_stats_enabled(ar))
 288		ath10k_sta_update_rx_duration(ar, &stats);
 289
 290	if (ar->debug.fw_stats_done) {
 291		if (!ath10k_peer_stats_enabled(ar))
 292			ath10k_warn(ar, "received unsolicited stats update event\n");
 293
 294		goto free;
 295	}
 296
 297	num_peers = list_count_nodes(&ar->debug.fw_stats.peers);
 298	num_vdevs = list_count_nodes(&ar->debug.fw_stats.vdevs);
 299	is_start = (list_empty(&ar->debug.fw_stats.pdevs) &&
 300		    !list_empty(&stats.pdevs));
 301	is_end = (!list_empty(&ar->debug.fw_stats.pdevs) &&
 302		  !list_empty(&stats.pdevs));
 303
 304	if (is_start)
 305		list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs);
 306
 307	if (is_end)
 308		ar->debug.fw_stats_done = true;
 309
 310	if (stats.extended)
 311		ar->debug.fw_stats.extended = true;
 312
 313	is_started = !list_empty(&ar->debug.fw_stats.pdevs);
 314
 315	if (is_started && !is_end) {
 316		if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) {
 317			/* Although this is unlikely impose a sane limit to
 318			 * prevent firmware from DoS-ing the host.
 319			 */
 320			ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers);
 321			ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd);
 322			ath10k_warn(ar, "dropping fw peer stats\n");
 323			goto free;
 324		}
 325
 326		if (num_vdevs >= BITS_PER_LONG) {
 327			ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
 328			ath10k_warn(ar, "dropping fw vdev stats\n");
 329			goto free;
 330		}
 331
 332		if (!list_empty(&stats.peers))
 333			list_splice_tail_init(&stats.peers_extd,
 334					      &ar->debug.fw_stats.peers_extd);
 335
 336		list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers);
 337		list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs);
 338	}
 339
 340	complete(&ar->debug.fw_stats_complete);
 341
 342free:
 343	/* In some cases lists have been spliced and cleared. Free up
 344	 * resources if that is not the case.
 345	 */
 346	ath10k_fw_stats_pdevs_free(&stats.pdevs);
 347	ath10k_fw_stats_vdevs_free(&stats.vdevs);
 348	ath10k_fw_stats_peers_free(&stats.peers);
 349	ath10k_fw_extd_stats_peers_free(&stats.peers_extd);
 350
 351	spin_unlock_bh(&ar->data_lock);
 352}
 353
 354int ath10k_debug_fw_stats_request(struct ath10k *ar)
 355{
 356	unsigned long timeout, time_left;
 357	int ret;
 358
 359	lockdep_assert_held(&ar->conf_mutex);
 360
 361	timeout = jiffies + msecs_to_jiffies(1 * HZ);
 362
 363	ath10k_debug_fw_stats_reset(ar);
 364
 365	for (;;) {
 366		if (time_after(jiffies, timeout))
 367			return -ETIMEDOUT;
 368
 369		reinit_completion(&ar->debug.fw_stats_complete);
 370
 371		ret = ath10k_wmi_request_stats(ar, ar->fw_stats_req_mask);
 372		if (ret) {
 373			ath10k_warn(ar, "could not request stats (%d)\n", ret);
 374			return ret;
 375		}
 376
 377		time_left =
 378		wait_for_completion_timeout(&ar->debug.fw_stats_complete,
 379					    1 * HZ);
 380		if (!time_left)
 381			return -ETIMEDOUT;
 382
 383		spin_lock_bh(&ar->data_lock);
 384		if (ar->debug.fw_stats_done) {
 385			spin_unlock_bh(&ar->data_lock);
 386			break;
 387		}
 388		spin_unlock_bh(&ar->data_lock);
 389	}
 390
 391	return 0;
 392}
 393
 394static int ath10k_fw_stats_open(struct inode *inode, struct file *file)
 395{
 396	struct ath10k *ar = inode->i_private;
 397	void *buf = NULL;
 398	int ret;
 399
 400	mutex_lock(&ar->conf_mutex);
 401
 402	if (ar->state != ATH10K_STATE_ON) {
 403		ret = -ENETDOWN;
 404		goto err_unlock;
 405	}
 406
 407	buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE);
 408	if (!buf) {
 409		ret = -ENOMEM;
 410		goto err_unlock;
 411	}
 412
 413	ret = ath10k_debug_fw_stats_request(ar);
 414	if (ret) {
 415		ath10k_warn(ar, "failed to request fw stats: %d\n", ret);
 416		goto err_free;
 417	}
 418
 419	ret = ath10k_wmi_fw_stats_fill(ar, &ar->debug.fw_stats, buf);
 420	if (ret) {
 421		ath10k_warn(ar, "failed to fill fw stats: %d\n", ret);
 422		goto err_free;
 423	}
 424
 425	file->private_data = buf;
 426
 427	mutex_unlock(&ar->conf_mutex);
 428	return 0;
 429
 430err_free:
 431	vfree(buf);
 432
 433err_unlock:
 434	mutex_unlock(&ar->conf_mutex);
 435	return ret;
 436}
 437
 438static int ath10k_fw_stats_release(struct inode *inode, struct file *file)
 439{
 440	vfree(file->private_data);
 441
 442	return 0;
 443}
 444
 445static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf,
 446				    size_t count, loff_t *ppos)
 447{
 448	const char *buf = file->private_data;
 449	size_t len = strlen(buf);
 450
 451	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 452}
 453
 454static const struct file_operations fops_fw_stats = {
 455	.open = ath10k_fw_stats_open,
 456	.release = ath10k_fw_stats_release,
 457	.read = ath10k_fw_stats_read,
 458	.owner = THIS_MODULE,
 459	.llseek = default_llseek,
 460};
 461
 462static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file,
 463						char __user *user_buf,
 464						size_t count, loff_t *ppos)
 465{
 466	struct ath10k *ar = file->private_data;
 467	int ret;
 468	size_t len = 0, buf_len = 500;
 469	char *buf;
 470
 471	buf = kmalloc(buf_len, GFP_KERNEL);
 472	if (!buf)
 473		return -ENOMEM;
 474
 475	spin_lock_bh(&ar->data_lock);
 476
 477	len += scnprintf(buf + len, buf_len - len,
 478			 "fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter);
 479	len += scnprintf(buf + len, buf_len - len,
 480			 "fw_warm_reset_counter\t\t%d\n",
 481			 ar->stats.fw_warm_reset_counter);
 482	len += scnprintf(buf + len, buf_len - len,
 483			 "fw_cold_reset_counter\t\t%d\n",
 484			 ar->stats.fw_cold_reset_counter);
 485
 486	spin_unlock_bh(&ar->data_lock);
 487
 488	ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 489
 490	kfree(buf);
 491
 492	return ret;
 493}
 494
 495static const struct file_operations fops_fw_reset_stats = {
 496	.open = simple_open,
 497	.read = ath10k_debug_fw_reset_stats_read,
 498	.owner = THIS_MODULE,
 499	.llseek = default_llseek,
 500};
 501
 502/* This is a clean assert crash in firmware. */
 503static int ath10k_debug_fw_assert(struct ath10k *ar)
 504{
 505	struct wmi_vdev_install_key_cmd *cmd;
 506	struct sk_buff *skb;
 507
 508	skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16);
 509	if (!skb)
 510		return -ENOMEM;
 511
 512	cmd = (struct wmi_vdev_install_key_cmd *)skb->data;
 513	memset(cmd, 0, sizeof(*cmd));
 514
 515	/* big enough number so that firmware asserts */
 516	cmd->vdev_id = __cpu_to_le32(0x7ffe);
 517
 518	return ath10k_wmi_cmd_send(ar, skb,
 519				   ar->wmi.cmd->vdev_install_key_cmdid);
 520}
 521
 522static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
 523					     char __user *user_buf,
 524					     size_t count, loff_t *ppos)
 525{
 526	const char buf[] =
 527		"To simulate firmware crash write one of the keywords to this file:\n"
 528		"`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n"
 529		"`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n"
 530		"`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n"
 531		"`hw-restart` - this will simply queue hw restart without fw/hw actually crashing.\n";
 532
 533	return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 534}
 535
 536/* Simulate firmware crash:
 537 * 'soft': Call wmi command causing firmware hang. This firmware hang is
 538 * recoverable by warm firmware reset.
 539 * 'hard': Force firmware crash by setting any vdev parameter for not allowed
 540 * vdev id. This is hard firmware crash because it is recoverable only by cold
 541 * firmware reset.
 542 */
 543static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
 544					      const char __user *user_buf,
 545					      size_t count, loff_t *ppos)
 546{
 547	struct ath10k *ar = file->private_data;
 548	char buf[32] = {0};
 549	ssize_t rc;
 550	int ret;
 551
 552	/* filter partial writes and invalid commands */
 553	if (*ppos != 0 || count >= sizeof(buf) || count == 0)
 554		return -EINVAL;
 555
 556	rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
 557	if (rc < 0)
 558		return rc;
 559
 560	/* drop the possible '\n' from the end */
 561	if (buf[*ppos - 1] == '\n')
 562		buf[*ppos - 1] = '\0';
 563
 564	mutex_lock(&ar->conf_mutex);
 565
 566	if (ar->state != ATH10K_STATE_ON &&
 567	    ar->state != ATH10K_STATE_RESTARTED) {
 568		ret = -ENETDOWN;
 569		goto exit;
 570	}
 571
 572	if (!strcmp(buf, "soft")) {
 573		ath10k_info(ar, "simulating soft firmware crash\n");
 574		ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
 575	} else if (!strcmp(buf, "hard")) {
 576		ath10k_info(ar, "simulating hard firmware crash\n");
 577		/* 0x7fff is vdev id, and it is always out of range for all
 578		 * firmware variants in order to force a firmware crash.
 579		 */
 580		ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
 581						ar->wmi.vdev_param->rts_threshold,
 582						0);
 583	} else if (!strcmp(buf, "assert")) {
 584		ath10k_info(ar, "simulating firmware assert crash\n");
 585		ret = ath10k_debug_fw_assert(ar);
 586	} else if (!strcmp(buf, "hw-restart")) {
 587		ath10k_info(ar, "user requested hw restart\n");
 588		ath10k_core_start_recovery(ar);
 589		ret = 0;
 590	} else {
 591		ret = -EINVAL;
 592		goto exit;
 593	}
 594
 595	if (ret) {
 596		ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret);
 597		goto exit;
 598	}
 599
 600	ret = count;
 601
 602exit:
 603	mutex_unlock(&ar->conf_mutex);
 604	return ret;
 605}
 606
 607static const struct file_operations fops_simulate_fw_crash = {
 608	.read = ath10k_read_simulate_fw_crash,
 609	.write = ath10k_write_simulate_fw_crash,
 610	.open = simple_open,
 611	.owner = THIS_MODULE,
 612	.llseek = default_llseek,
 613};
 614
 615static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
 616				   size_t count, loff_t *ppos)
 617{
 618	struct ath10k *ar = file->private_data;
 619	size_t len;
 620	char buf[50];
 621
 622	len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->bus_param.chip_id);
 623
 624	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 625}
 626
 627static const struct file_operations fops_chip_id = {
 628	.read = ath10k_read_chip_id,
 629	.open = simple_open,
 630	.owner = THIS_MODULE,
 631	.llseek = default_llseek,
 632};
 633
 634static ssize_t ath10k_reg_addr_read(struct file *file,
 635				    char __user *user_buf,
 636				    size_t count, loff_t *ppos)
 637{
 638	struct ath10k *ar = file->private_data;
 639	u8 buf[32];
 640	size_t len = 0;
 641	u32 reg_addr;
 642
 643	mutex_lock(&ar->conf_mutex);
 644	reg_addr = ar->debug.reg_addr;
 645	mutex_unlock(&ar->conf_mutex);
 646
 647	len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", reg_addr);
 648
 649	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 650}
 651
 652static ssize_t ath10k_reg_addr_write(struct file *file,
 653				     const char __user *user_buf,
 654				     size_t count, loff_t *ppos)
 655{
 656	struct ath10k *ar = file->private_data;
 657	u32 reg_addr;
 658	int ret;
 659
 660	ret = kstrtou32_from_user(user_buf, count, 0, &reg_addr);
 661	if (ret)
 662		return ret;
 663
 664	if (!IS_ALIGNED(reg_addr, 4))
 665		return -EFAULT;
 666
 667	mutex_lock(&ar->conf_mutex);
 668	ar->debug.reg_addr = reg_addr;
 669	mutex_unlock(&ar->conf_mutex);
 670
 671	return count;
 672}
 673
 674static const struct file_operations fops_reg_addr = {
 675	.read = ath10k_reg_addr_read,
 676	.write = ath10k_reg_addr_write,
 677	.open = simple_open,
 678	.owner = THIS_MODULE,
 679	.llseek = default_llseek,
 680};
 681
 682static ssize_t ath10k_reg_value_read(struct file *file,
 683				     char __user *user_buf,
 684				     size_t count, loff_t *ppos)
 685{
 686	struct ath10k *ar = file->private_data;
 687	u8 buf[48];
 688	size_t len;
 689	u32 reg_addr, reg_val;
 690	int ret;
 691
 692	mutex_lock(&ar->conf_mutex);
 693
 694	if (ar->state != ATH10K_STATE_ON &&
 695	    ar->state != ATH10K_STATE_UTF) {
 696		ret = -ENETDOWN;
 697		goto exit;
 698	}
 699
 700	reg_addr = ar->debug.reg_addr;
 701
 702	reg_val = ath10k_hif_read32(ar, reg_addr);
 703	len = scnprintf(buf, sizeof(buf), "0x%08x:0x%08x\n", reg_addr, reg_val);
 704
 705	ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 706
 707exit:
 708	mutex_unlock(&ar->conf_mutex);
 709
 710	return ret;
 711}
 712
 713static ssize_t ath10k_reg_value_write(struct file *file,
 714				      const char __user *user_buf,
 715				      size_t count, loff_t *ppos)
 716{
 717	struct ath10k *ar = file->private_data;
 718	u32 reg_addr, reg_val;
 719	int ret;
 720
 721	mutex_lock(&ar->conf_mutex);
 722
 723	if (ar->state != ATH10K_STATE_ON &&
 724	    ar->state != ATH10K_STATE_UTF) {
 725		ret = -ENETDOWN;
 726		goto exit;
 727	}
 728
 729	reg_addr = ar->debug.reg_addr;
 730
 731	ret = kstrtou32_from_user(user_buf, count, 0, &reg_val);
 732	if (ret)
 733		goto exit;
 734
 735	ath10k_hif_write32(ar, reg_addr, reg_val);
 736
 737	ret = count;
 738
 739exit:
 740	mutex_unlock(&ar->conf_mutex);
 741
 742	return ret;
 743}
 744
 745static const struct file_operations fops_reg_value = {
 746	.read = ath10k_reg_value_read,
 747	.write = ath10k_reg_value_write,
 748	.open = simple_open,
 749	.owner = THIS_MODULE,
 750	.llseek = default_llseek,
 751};
 752
 753static ssize_t ath10k_mem_value_read(struct file *file,
 754				     char __user *user_buf,
 755				     size_t count, loff_t *ppos)
 756{
 757	struct ath10k *ar = file->private_data;
 758	u8 *buf;
 759	int ret;
 760
 761	if (*ppos < 0)
 762		return -EINVAL;
 763
 764	if (!count)
 765		return 0;
 766
 767	mutex_lock(&ar->conf_mutex);
 768
 769	buf = vmalloc(count);
 770	if (!buf) {
 771		ret = -ENOMEM;
 772		goto exit;
 773	}
 774
 775	if (ar->state != ATH10K_STATE_ON &&
 776	    ar->state != ATH10K_STATE_UTF) {
 777		ret = -ENETDOWN;
 778		goto exit;
 779	}
 780
 781	ret = ath10k_hif_diag_read(ar, *ppos, buf, count);
 782	if (ret) {
 783		ath10k_warn(ar, "failed to read address 0x%08x via diagnose window from debugfs: %d\n",
 784			    (u32)(*ppos), ret);
 785		goto exit;
 786	}
 787
 788	ret = copy_to_user(user_buf, buf, count);
 789	if (ret) {
 790		ret = -EFAULT;
 791		goto exit;
 792	}
 793
 794	count -= ret;
 795	*ppos += count;
 796	ret = count;
 797
 798exit:
 799	vfree(buf);
 800	mutex_unlock(&ar->conf_mutex);
 801
 802	return ret;
 803}
 804
 805static ssize_t ath10k_mem_value_write(struct file *file,
 806				      const char __user *user_buf,
 807				      size_t count, loff_t *ppos)
 808{
 809	struct ath10k *ar = file->private_data;
 810	u8 *buf;
 811	int ret;
 812
 813	if (*ppos < 0)
 814		return -EINVAL;
 815
 816	if (!count)
 817		return 0;
 818
 819	mutex_lock(&ar->conf_mutex);
 820
 821	buf = vmalloc(count);
 822	if (!buf) {
 823		ret = -ENOMEM;
 824		goto exit;
 825	}
 826
 827	if (ar->state != ATH10K_STATE_ON &&
 828	    ar->state != ATH10K_STATE_UTF) {
 829		ret = -ENETDOWN;
 830		goto exit;
 831	}
 832
 833	ret = copy_from_user(buf, user_buf, count);
 834	if (ret) {
 835		ret = -EFAULT;
 836		goto exit;
 837	}
 838
 839	ret = ath10k_hif_diag_write(ar, *ppos, buf, count);
 840	if (ret) {
 841		ath10k_warn(ar, "failed to write address 0x%08x via diagnose window from debugfs: %d\n",
 842			    (u32)(*ppos), ret);
 843		goto exit;
 844	}
 845
 846	*ppos += count;
 847	ret = count;
 848
 849exit:
 850	vfree(buf);
 851	mutex_unlock(&ar->conf_mutex);
 852
 853	return ret;
 854}
 855
 856static const struct file_operations fops_mem_value = {
 857	.read = ath10k_mem_value_read,
 858	.write = ath10k_mem_value_write,
 859	.open = simple_open,
 860	.owner = THIS_MODULE,
 861	.llseek = default_llseek,
 862};
 863
 864static int ath10k_debug_htt_stats_req(struct ath10k *ar)
 865{
 866	u64 cookie;
 867	int ret;
 868
 869	lockdep_assert_held(&ar->conf_mutex);
 870
 871	if (ar->debug.htt_stats_mask == 0)
 872		/* htt stats are disabled */
 873		return 0;
 874
 875	if (ar->state != ATH10K_STATE_ON)
 876		return 0;
 877
 878	cookie = get_jiffies_64();
 879
 880	ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
 881				       ar->debug.reset_htt_stats, cookie);
 882	if (ret) {
 883		ath10k_warn(ar, "failed to send htt stats request: %d\n", ret);
 884		return ret;
 885	}
 886
 887	queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
 888			   msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
 889
 890	return 0;
 891}
 892
 893static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
 894{
 895	struct ath10k *ar = container_of(work, struct ath10k,
 896					 debug.htt_stats_dwork.work);
 897
 898	mutex_lock(&ar->conf_mutex);
 899
 900	ath10k_debug_htt_stats_req(ar);
 901
 902	mutex_unlock(&ar->conf_mutex);
 903}
 904
 905static ssize_t ath10k_read_htt_stats_mask(struct file *file,
 906					  char __user *user_buf,
 907					  size_t count, loff_t *ppos)
 908{
 909	struct ath10k *ar = file->private_data;
 910	char buf[32];
 911	size_t len;
 912
 913	len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
 914
 915	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 916}
 917
 918static ssize_t ath10k_write_htt_stats_mask(struct file *file,
 919					   const char __user *user_buf,
 920					   size_t count, loff_t *ppos)
 921{
 922	struct ath10k *ar = file->private_data;
 923	unsigned long mask;
 924	int ret;
 925
 926	ret = kstrtoul_from_user(user_buf, count, 0, &mask);
 927	if (ret)
 928		return ret;
 929
 930	/* max 17 bit masks (for now) */
 931	if (mask > HTT_STATS_BIT_MASK)
 932		return -E2BIG;
 933
 934	mutex_lock(&ar->conf_mutex);
 935
 936	ar->debug.htt_stats_mask = mask;
 937
 938	ret = ath10k_debug_htt_stats_req(ar);
 939	if (ret)
 940		goto out;
 941
 942	ret = count;
 943
 944out:
 945	mutex_unlock(&ar->conf_mutex);
 946
 947	return ret;
 948}
 949
 950static const struct file_operations fops_htt_stats_mask = {
 951	.read = ath10k_read_htt_stats_mask,
 952	.write = ath10k_write_htt_stats_mask,
 953	.open = simple_open,
 954	.owner = THIS_MODULE,
 955	.llseek = default_llseek,
 956};
 957
 958static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
 959					       char __user *user_buf,
 960					       size_t count, loff_t *ppos)
 961{
 962	struct ath10k *ar = file->private_data;
 963	char buf[64];
 964	u8 amsdu, ampdu;
 965	size_t len;
 966
 967	mutex_lock(&ar->conf_mutex);
 968
 969	amsdu = ar->htt.max_num_amsdu;
 970	ampdu = ar->htt.max_num_ampdu;
 971	mutex_unlock(&ar->conf_mutex);
 972
 973	len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);
 974
 975	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 976}
 977
 978static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
 979						const char __user *user_buf,
 980						size_t count, loff_t *ppos)
 981{
 982	struct ath10k *ar = file->private_data;
 983	int res;
 984	char buf[64] = {0};
 985	unsigned int amsdu, ampdu;
 986
 987	res = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos,
 988				     user_buf, count);
 989	if (res <= 0)
 990		return res;
 991
 992	res = sscanf(buf, "%u %u", &amsdu, &ampdu);
 993
 994	if (res != 2)
 995		return -EINVAL;
 996
 997	mutex_lock(&ar->conf_mutex);
 998
 999	res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
1000	if (res)
1001		goto out;
1002
1003	res = count;
1004	ar->htt.max_num_amsdu = amsdu;
1005	ar->htt.max_num_ampdu = ampdu;
1006
1007out:
1008	mutex_unlock(&ar->conf_mutex);
1009	return res;
1010}
1011
1012static const struct file_operations fops_htt_max_amsdu_ampdu = {
1013	.read = ath10k_read_htt_max_amsdu_ampdu,
1014	.write = ath10k_write_htt_max_amsdu_ampdu,
1015	.open = simple_open,
1016	.owner = THIS_MODULE,
1017	.llseek = default_llseek,
1018};
1019
1020static ssize_t ath10k_read_fw_dbglog(struct file *file,
1021				     char __user *user_buf,
1022				     size_t count, loff_t *ppos)
1023{
1024	struct ath10k *ar = file->private_data;
1025	size_t len;
1026	char buf[96];
1027
1028	len = scnprintf(buf, sizeof(buf), "0x%16llx %u\n",
1029			ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level);
1030
1031	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1032}
1033
1034static ssize_t ath10k_write_fw_dbglog(struct file *file,
1035				      const char __user *user_buf,
1036				      size_t count, loff_t *ppos)
1037{
1038	struct ath10k *ar = file->private_data;
1039	int ret;
1040	char buf[96] = {0};
1041	unsigned int log_level;
1042	u64 mask;
1043
1044	ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos,
1045				     user_buf, count);
1046	if (ret <= 0)
1047		return ret;
1048
1049	ret = sscanf(buf, "%llx %u", &mask, &log_level);
1050
1051	if (!ret)
1052		return -EINVAL;
1053
1054	if (ret == 1)
1055		/* default if user did not specify */
1056		log_level = ATH10K_DBGLOG_LEVEL_WARN;
1057
1058	mutex_lock(&ar->conf_mutex);
1059
1060	ar->debug.fw_dbglog_mask = mask;
1061	ar->debug.fw_dbglog_level = log_level;
1062
1063	if (ar->state == ATH10K_STATE_ON) {
1064		ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1065					    ar->debug.fw_dbglog_level);
1066		if (ret) {
1067			ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
1068				    ret);
1069			goto exit;
1070		}
1071	}
1072
1073	ret = count;
1074
1075exit:
1076	mutex_unlock(&ar->conf_mutex);
1077
1078	return ret;
1079}
1080
1081/* TODO:  Would be nice to always support ethtool stats, would need to
1082 * move the stats storage out of ath10k_debug, or always have ath10k_debug
1083 * struct available..
1084 */
1085
1086/* This generally corresponds to the debugfs fw_stats file */
1087static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = {
1088	"tx_pkts_nic",
1089	"tx_bytes_nic",
1090	"rx_pkts_nic",
1091	"rx_bytes_nic",
1092	"d_noise_floor",
1093	"d_cycle_count",
1094	"d_phy_error",
1095	"d_rts_bad",
1096	"d_rts_good",
1097	"d_tx_power", /* in .5 dbM I think */
1098	"d_rx_crc_err", /* fcs_bad */
1099	"d_rx_crc_err_drop", /* frame with FCS error, dropped late in kernel */
1100	"d_no_beacon",
1101	"d_tx_mpdus_queued",
1102	"d_tx_msdu_queued",
1103	"d_tx_msdu_dropped",
1104	"d_local_enqued",
1105	"d_local_freed",
1106	"d_tx_ppdu_hw_queued",
1107	"d_tx_ppdu_reaped",
1108	"d_tx_fifo_underrun",
1109	"d_tx_ppdu_abort",
1110	"d_tx_mpdu_requeued",
1111	"d_tx_excessive_retries",
1112	"d_tx_hw_rate",
1113	"d_tx_dropped_sw_retries",
1114	"d_tx_illegal_rate",
1115	"d_tx_continuous_xretries",
1116	"d_tx_timeout",
1117	"d_tx_mpdu_txop_limit",
1118	"d_pdev_resets",
1119	"d_rx_mid_ppdu_route_change",
1120	"d_rx_status",
1121	"d_rx_extra_frags_ring0",
1122	"d_rx_extra_frags_ring1",
1123	"d_rx_extra_frags_ring2",
1124	"d_rx_extra_frags_ring3",
1125	"d_rx_msdu_htt",
1126	"d_rx_mpdu_htt",
1127	"d_rx_msdu_stack",
1128	"d_rx_mpdu_stack",
1129	"d_rx_phy_err",
1130	"d_rx_phy_err_drops",
1131	"d_rx_mpdu_errors", /* FCS, MIC, ENC */
1132	"d_fw_crash_count",
1133	"d_fw_warm_reset_count",
1134	"d_fw_cold_reset_count",
1135};
1136
1137#define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats)
1138
1139void ath10k_debug_get_et_strings(struct ieee80211_hw *hw,
1140				 struct ieee80211_vif *vif,
1141				 u32 sset, u8 *data)
1142{
1143	if (sset == ETH_SS_STATS)
1144		memcpy(data, ath10k_gstrings_stats,
1145		       sizeof(ath10k_gstrings_stats));
1146}
1147
1148int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw,
1149				   struct ieee80211_vif *vif, int sset)
1150{
1151	if (sset == ETH_SS_STATS)
1152		return ATH10K_SSTATS_LEN;
1153
1154	return 0;
1155}
1156
1157void ath10k_debug_get_et_stats(struct ieee80211_hw *hw,
1158			       struct ieee80211_vif *vif,
1159			       struct ethtool_stats *stats, u64 *data)
1160{
1161	struct ath10k *ar = hw->priv;
1162	static const struct ath10k_fw_stats_pdev zero_stats = {};
1163	const struct ath10k_fw_stats_pdev *pdev_stats;
1164	int i = 0, ret;
1165
1166	mutex_lock(&ar->conf_mutex);
1167
1168	if (ar->state == ATH10K_STATE_ON) {
1169		ret = ath10k_debug_fw_stats_request(ar);
1170		if (ret) {
1171			/* just print a warning and try to use older results */
1172			ath10k_warn(ar,
1173				    "failed to get fw stats for ethtool: %d\n",
1174				    ret);
1175		}
1176	}
1177
1178	pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs,
1179					      struct ath10k_fw_stats_pdev,
1180					      list);
1181	if (!pdev_stats) {
1182		/* no results available so just return zeroes */
1183		pdev_stats = &zero_stats;
1184	}
1185
1186	spin_lock_bh(&ar->data_lock);
1187
1188	data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */
1189	data[i++] = 0; /* tx bytes */
1190	data[i++] = pdev_stats->htt_mpdus;
1191	data[i++] = 0; /* rx bytes */
1192	data[i++] = pdev_stats->ch_noise_floor;
1193	data[i++] = pdev_stats->cycle_count;
1194	data[i++] = pdev_stats->phy_err_count;
1195	data[i++] = pdev_stats->rts_bad;
1196	data[i++] = pdev_stats->rts_good;
1197	data[i++] = pdev_stats->chan_tx_power;
1198	data[i++] = pdev_stats->fcs_bad;
1199	data[i++] = ar->stats.rx_crc_err_drop;
1200	data[i++] = pdev_stats->no_beacons;
1201	data[i++] = pdev_stats->mpdu_enqued;
1202	data[i++] = pdev_stats->msdu_enqued;
1203	data[i++] = pdev_stats->wmm_drop;
1204	data[i++] = pdev_stats->local_enqued;
1205	data[i++] = pdev_stats->local_freed;
1206	data[i++] = pdev_stats->hw_queued;
1207	data[i++] = pdev_stats->hw_reaped;
1208	data[i++] = pdev_stats->underrun;
1209	data[i++] = pdev_stats->tx_abort;
1210	data[i++] = pdev_stats->mpdus_requeued;
1211	data[i++] = pdev_stats->tx_ko;
1212	data[i++] = pdev_stats->data_rc;
1213	data[i++] = pdev_stats->sw_retry_failure;
1214	data[i++] = pdev_stats->illgl_rate_phy_err;
1215	data[i++] = pdev_stats->pdev_cont_xretry;
1216	data[i++] = pdev_stats->pdev_tx_timeout;
1217	data[i++] = pdev_stats->txop_ovf;
1218	data[i++] = pdev_stats->pdev_resets;
1219	data[i++] = pdev_stats->mid_ppdu_route_change;
1220	data[i++] = pdev_stats->status_rcvd;
1221	data[i++] = pdev_stats->r0_frags;
1222	data[i++] = pdev_stats->r1_frags;
1223	data[i++] = pdev_stats->r2_frags;
1224	data[i++] = pdev_stats->r3_frags;
1225	data[i++] = pdev_stats->htt_msdus;
1226	data[i++] = pdev_stats->htt_mpdus;
1227	data[i++] = pdev_stats->loc_msdus;
1228	data[i++] = pdev_stats->loc_mpdus;
1229	data[i++] = pdev_stats->phy_errs;
1230	data[i++] = pdev_stats->phy_err_drop;
1231	data[i++] = pdev_stats->mpdu_errs;
1232	data[i++] = ar->stats.fw_crash_counter;
1233	data[i++] = ar->stats.fw_warm_reset_counter;
1234	data[i++] = ar->stats.fw_cold_reset_counter;
1235
1236	spin_unlock_bh(&ar->data_lock);
1237
1238	mutex_unlock(&ar->conf_mutex);
1239
1240	WARN_ON(i != ATH10K_SSTATS_LEN);
1241}
1242
1243static const struct file_operations fops_fw_dbglog = {
1244	.read = ath10k_read_fw_dbglog,
1245	.write = ath10k_write_fw_dbglog,
1246	.open = simple_open,
1247	.owner = THIS_MODULE,
1248	.llseek = default_llseek,
1249};
1250
1251static int ath10k_debug_cal_data_fetch(struct ath10k *ar)
1252{
1253	u32 hi_addr;
1254	__le32 addr;
1255	int ret;
1256
1257	lockdep_assert_held(&ar->conf_mutex);
1258
1259	if (WARN_ON(ar->hw_params.cal_data_len > ATH10K_DEBUG_CAL_DATA_LEN))
1260		return -EINVAL;
1261
1262	if (ar->hw_params.cal_data_len == 0)
1263		return -EOPNOTSUPP;
1264
1265	hi_addr = host_interest_item_address(HI_ITEM(hi_board_data));
1266
1267	ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr));
1268	if (ret) {
1269		ath10k_warn(ar, "failed to read hi_board_data address: %d\n",
1270			    ret);
1271		return ret;
1272	}
1273
1274	ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), ar->debug.cal_data,
1275				   ar->hw_params.cal_data_len);
1276	if (ret) {
1277		ath10k_warn(ar, "failed to read calibration data: %d\n", ret);
1278		return ret;
1279	}
1280
1281	return 0;
1282}
1283
1284static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file)
1285{
1286	struct ath10k *ar = inode->i_private;
1287
1288	mutex_lock(&ar->conf_mutex);
1289
1290	if (ar->state == ATH10K_STATE_ON ||
1291	    ar->state == ATH10K_STATE_UTF) {
1292		ath10k_debug_cal_data_fetch(ar);
1293	}
1294
1295	file->private_data = ar;
1296	mutex_unlock(&ar->conf_mutex);
1297
1298	return 0;
1299}
1300
1301static ssize_t ath10k_debug_cal_data_read(struct file *file,
1302					  char __user *user_buf,
1303					  size_t count, loff_t *ppos)
1304{
1305	struct ath10k *ar = file->private_data;
1306
1307	mutex_lock(&ar->conf_mutex);
1308
1309	count = simple_read_from_buffer(user_buf, count, ppos,
1310					ar->debug.cal_data,
1311					ar->hw_params.cal_data_len);
1312
1313	mutex_unlock(&ar->conf_mutex);
1314
1315	return count;
1316}
1317
1318static ssize_t ath10k_write_ani_enable(struct file *file,
1319				       const char __user *user_buf,
1320				       size_t count, loff_t *ppos)
1321{
1322	struct ath10k *ar = file->private_data;
1323	int ret;
1324	u8 enable;
1325
1326	if (kstrtou8_from_user(user_buf, count, 0, &enable))
1327		return -EINVAL;
1328
1329	mutex_lock(&ar->conf_mutex);
1330
1331	if (ar->ani_enabled == enable) {
1332		ret = count;
1333		goto exit;
1334	}
1335
1336	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->ani_enable,
1337					enable);
1338	if (ret) {
1339		ath10k_warn(ar, "ani_enable failed from debugfs: %d\n", ret);
1340		goto exit;
1341	}
1342	ar->ani_enabled = enable;
1343
1344	ret = count;
1345
1346exit:
1347	mutex_unlock(&ar->conf_mutex);
1348
1349	return ret;
1350}
1351
1352static ssize_t ath10k_read_ani_enable(struct file *file, char __user *user_buf,
1353				      size_t count, loff_t *ppos)
1354{
1355	struct ath10k *ar = file->private_data;
1356	size_t len;
1357	char buf[32];
1358
1359	len = scnprintf(buf, sizeof(buf), "%d\n", ar->ani_enabled);
1360
1361	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1362}
1363
1364static const struct file_operations fops_ani_enable = {
1365	.read = ath10k_read_ani_enable,
1366	.write = ath10k_write_ani_enable,
1367	.open = simple_open,
1368	.owner = THIS_MODULE,
1369	.llseek = default_llseek,
1370};
1371
1372static const struct file_operations fops_cal_data = {
1373	.open = ath10k_debug_cal_data_open,
1374	.read = ath10k_debug_cal_data_read,
1375	.owner = THIS_MODULE,
1376	.llseek = default_llseek,
1377};
1378
1379static ssize_t ath10k_read_nf_cal_period(struct file *file,
1380					 char __user *user_buf,
1381					 size_t count, loff_t *ppos)
1382{
1383	struct ath10k *ar = file->private_data;
1384	size_t len;
1385	char buf[32];
1386
1387	len = scnprintf(buf, sizeof(buf), "%d\n", ar->debug.nf_cal_period);
1388
1389	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1390}
1391
1392static ssize_t ath10k_write_nf_cal_period(struct file *file,
1393					  const char __user *user_buf,
1394					  size_t count, loff_t *ppos)
1395{
1396	struct ath10k *ar = file->private_data;
1397	unsigned long period;
1398	int ret;
1399
1400	ret = kstrtoul_from_user(user_buf, count, 0, &period);
1401	if (ret)
1402		return ret;
1403
1404	if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX)
1405		return -EINVAL;
1406
1407	/* there's no way to switch back to the firmware default */
1408	if (period == 0)
1409		return -EINVAL;
1410
1411	mutex_lock(&ar->conf_mutex);
1412
1413	ar->debug.nf_cal_period = period;
1414
1415	if (ar->state != ATH10K_STATE_ON) {
1416		/* firmware is not running, nothing else to do */
1417		ret = count;
1418		goto exit;
1419	}
1420
1421	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period,
1422					ar->debug.nf_cal_period);
1423	if (ret) {
1424		ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n",
1425			    ret);
1426		goto exit;
1427	}
1428
1429	ret = count;
1430
1431exit:
1432	mutex_unlock(&ar->conf_mutex);
1433
1434	return ret;
1435}
1436
1437static const struct file_operations fops_nf_cal_period = {
1438	.read = ath10k_read_nf_cal_period,
1439	.write = ath10k_write_nf_cal_period,
1440	.open = simple_open,
1441	.owner = THIS_MODULE,
1442	.llseek = default_llseek,
1443};
1444
1445#define ATH10K_TPC_CONFIG_BUF_SIZE	(1024 * 1024)
1446
1447static int ath10k_debug_tpc_stats_request(struct ath10k *ar)
1448{
1449	int ret;
1450	unsigned long time_left;
1451
1452	lockdep_assert_held(&ar->conf_mutex);
1453
1454	reinit_completion(&ar->debug.tpc_complete);
1455
1456	ret = ath10k_wmi_pdev_get_tpc_config(ar, WMI_TPC_CONFIG_PARAM);
1457	if (ret) {
1458		ath10k_warn(ar, "failed to request tpc config: %d\n", ret);
1459		return ret;
1460	}
1461
1462	time_left = wait_for_completion_timeout(&ar->debug.tpc_complete,
1463						1 * HZ);
1464	if (time_left == 0)
1465		return -ETIMEDOUT;
1466
1467	return 0;
1468}
1469
1470void ath10k_debug_tpc_stats_process(struct ath10k *ar,
1471				    struct ath10k_tpc_stats *tpc_stats)
1472{
1473	spin_lock_bh(&ar->data_lock);
1474
1475	kfree(ar->debug.tpc_stats);
1476	ar->debug.tpc_stats = tpc_stats;
1477	complete(&ar->debug.tpc_complete);
1478
1479	spin_unlock_bh(&ar->data_lock);
1480}
1481
1482void
1483ath10k_debug_tpc_stats_final_process(struct ath10k *ar,
1484				     struct ath10k_tpc_stats_final *tpc_stats)
1485{
1486	spin_lock_bh(&ar->data_lock);
1487
1488	kfree(ar->debug.tpc_stats_final);
1489	ar->debug.tpc_stats_final = tpc_stats;
1490	complete(&ar->debug.tpc_complete);
1491
1492	spin_unlock_bh(&ar->data_lock);
1493}
1494
1495static void ath10k_tpc_stats_print(struct ath10k_tpc_stats *tpc_stats,
1496				   unsigned int j, char *buf, size_t *len)
1497{
1498	int i;
1499	size_t buf_len;
1500	static const char table_str[][5] = { "CDD",
1501					     "STBC",
1502					     "TXBF" };
1503	static const char pream_str[][6] = { "CCK",
1504					     "OFDM",
1505					     "HT20",
1506					     "HT40",
1507					     "VHT20",
1508					     "VHT40",
1509					     "VHT80",
1510					     "HTCUP" };
1511
1512	buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
1513	*len += scnprintf(buf + *len, buf_len - *len,
1514			  "********************************\n");
1515	*len += scnprintf(buf + *len, buf_len - *len,
1516			  "******************* %s POWER TABLE ****************\n",
1517			  table_str[j]);
1518	*len += scnprintf(buf + *len, buf_len - *len,
1519			  "********************************\n");
1520	*len += scnprintf(buf + *len, buf_len - *len,
1521			  "No.  Preamble Rate_code ");
1522
1523	for (i = 0; i < tpc_stats->num_tx_chain; i++)
1524		*len += scnprintf(buf + *len, buf_len - *len,
1525				  "tpc_value%d ", i);
1526
1527	*len += scnprintf(buf + *len, buf_len - *len, "\n");
1528
1529	for (i = 0; i < tpc_stats->rate_max; i++) {
1530		*len += scnprintf(buf + *len, buf_len - *len,
1531				  "%8d %s 0x%2x %s\n", i,
1532				  pream_str[tpc_stats->tpc_table[j].pream_idx[i]],
1533				  tpc_stats->tpc_table[j].rate_code[i],
1534				  tpc_stats->tpc_table[j].tpc_value[i]);
1535	}
1536
1537	*len += scnprintf(buf + *len, buf_len - *len,
1538			  "***********************************\n");
1539}
1540
1541static void ath10k_tpc_stats_fill(struct ath10k *ar,
1542				  struct ath10k_tpc_stats *tpc_stats,
1543				  char *buf)
1544{
1545	int j;
1546	size_t len, buf_len;
1547
1548	len = 0;
1549	buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
1550
1551	spin_lock_bh(&ar->data_lock);
1552
1553	if (!tpc_stats) {
1554		ath10k_warn(ar, "failed to get tpc stats\n");
1555		goto unlock;
1556	}
1557
1558	len += scnprintf(buf + len, buf_len - len, "\n");
1559	len += scnprintf(buf + len, buf_len - len,
1560			 "*************************************\n");
1561	len += scnprintf(buf + len, buf_len - len,
1562			 "TPC config for channel %4d mode %d\n",
1563			 tpc_stats->chan_freq,
1564			 tpc_stats->phy_mode);
1565	len += scnprintf(buf + len, buf_len - len,
1566			 "*************************************\n");
1567	len += scnprintf(buf + len, buf_len - len,
1568			 "CTL		=  0x%2x Reg. Domain		= %2d\n",
1569			 tpc_stats->ctl,
1570			 tpc_stats->reg_domain);
1571	len += scnprintf(buf + len, buf_len - len,
1572			 "Antenna Gain	= %2d Reg. Max Antenna Gain	=  %2d\n",
1573			 tpc_stats->twice_antenna_gain,
1574			 tpc_stats->twice_antenna_reduction);
1575	len += scnprintf(buf + len, buf_len - len,
1576			 "Power Limit	= %2d Reg. Max Power		= %2d\n",
1577			 tpc_stats->power_limit,
1578			 tpc_stats->twice_max_rd_power / 2);
1579	len += scnprintf(buf + len, buf_len - len,
1580			 "Num tx chains	= %2d Num supported rates	= %2d\n",
1581			 tpc_stats->num_tx_chain,
1582			 tpc_stats->rate_max);
1583
1584	for (j = 0; j < WMI_TPC_FLAG; j++) {
1585		switch (j) {
1586		case WMI_TPC_TABLE_TYPE_CDD:
1587			if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1588				len += scnprintf(buf + len, buf_len - len,
1589						 "CDD not supported\n");
1590				break;
1591			}
1592
1593			ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1594			break;
1595		case WMI_TPC_TABLE_TYPE_STBC:
1596			if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1597				len += scnprintf(buf + len, buf_len - len,
1598						 "STBC not supported\n");
1599				break;
1600			}
1601
1602			ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1603			break;
1604		case WMI_TPC_TABLE_TYPE_TXBF:
1605			if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1606				len += scnprintf(buf + len, buf_len - len,
1607						 "TXBF not supported\n***************************\n");
1608				break;
1609			}
1610
1611			ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1612			break;
1613		default:
1614			len += scnprintf(buf + len, buf_len - len,
1615					 "Invalid Type\n");
1616			break;
1617		}
1618	}
1619
1620unlock:
1621	spin_unlock_bh(&ar->data_lock);
1622
1623	if (len >= buf_len)
1624		buf[len - 1] = 0;
1625	else
1626		buf[len] = 0;
1627}
1628
1629static int ath10k_tpc_stats_open(struct inode *inode, struct file *file)
1630{
1631	struct ath10k *ar = inode->i_private;
1632	void *buf = NULL;
1633	int ret;
1634
1635	mutex_lock(&ar->conf_mutex);
1636
1637	if (ar->state != ATH10K_STATE_ON) {
1638		ret = -ENETDOWN;
1639		goto err_unlock;
1640	}
1641
1642	buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
1643	if (!buf) {
1644		ret = -ENOMEM;
1645		goto err_unlock;
1646	}
1647
1648	ret = ath10k_debug_tpc_stats_request(ar);
1649	if (ret) {
1650		ath10k_warn(ar, "failed to request tpc config stats: %d\n",
1651			    ret);
1652		goto err_free;
1653	}
1654
1655	ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
1656	file->private_data = buf;
1657
1658	mutex_unlock(&ar->conf_mutex);
1659	return 0;
1660
1661err_free:
1662	vfree(buf);
1663
1664err_unlock:
1665	mutex_unlock(&ar->conf_mutex);
1666	return ret;
1667}
1668
1669static int ath10k_tpc_stats_release(struct inode *inode, struct file *file)
1670{
1671	vfree(file->private_data);
1672
1673	return 0;
1674}
1675
1676static ssize_t ath10k_tpc_stats_read(struct file *file, char __user *user_buf,
1677				     size_t count, loff_t *ppos)
1678{
1679	const char *buf = file->private_data;
1680	size_t len = strlen(buf);
1681
1682	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1683}
1684
1685static const struct file_operations fops_tpc_stats = {
1686	.open = ath10k_tpc_stats_open,
1687	.release = ath10k_tpc_stats_release,
1688	.read = ath10k_tpc_stats_read,
1689	.owner = THIS_MODULE,
1690	.llseek = default_llseek,
1691};
1692
1693int ath10k_debug_start(struct ath10k *ar)
1694{
1695	int ret;
1696
1697	lockdep_assert_held(&ar->conf_mutex);
1698
1699	ret = ath10k_debug_htt_stats_req(ar);
1700	if (ret)
1701		/* continue normally anyway, this isn't serious */
1702		ath10k_warn(ar, "failed to start htt stats workqueue: %d\n",
1703			    ret);
1704
1705	if (ar->debug.fw_dbglog_mask) {
1706		ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1707					    ATH10K_DBGLOG_LEVEL_WARN);
1708		if (ret)
1709			/* not serious */
1710			ath10k_warn(ar, "failed to enable dbglog during start: %d",
1711				    ret);
1712	}
1713
1714	if (ar->pktlog_filter) {
1715		ret = ath10k_wmi_pdev_pktlog_enable(ar,
1716						    ar->pktlog_filter);
1717		if (ret)
1718			/* not serious */
1719			ath10k_warn(ar,
1720				    "failed to enable pktlog filter %x: %d\n",
1721				    ar->pktlog_filter, ret);
1722	} else {
1723		ret = ath10k_wmi_pdev_pktlog_disable(ar);
1724		if (ret)
1725			/* not serious */
1726			ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1727	}
1728
1729	if (ar->debug.nf_cal_period &&
1730	    !test_bit(ATH10K_FW_FEATURE_NON_BMI,
1731		      ar->normal_mode_fw.fw_file.fw_features)) {
1732		ret = ath10k_wmi_pdev_set_param(ar,
1733						ar->wmi.pdev_param->cal_period,
1734						ar->debug.nf_cal_period);
1735		if (ret)
1736			/* not serious */
1737			ath10k_warn(ar, "cal period cfg failed from debug start: %d\n",
1738				    ret);
1739	}
1740
1741	return ret;
1742}
1743
1744void ath10k_debug_stop(struct ath10k *ar)
1745{
1746	lockdep_assert_held(&ar->conf_mutex);
1747
1748	if (!test_bit(ATH10K_FW_FEATURE_NON_BMI,
1749		      ar->normal_mode_fw.fw_file.fw_features))
1750		ath10k_debug_cal_data_fetch(ar);
1751
1752	/* Must not use _sync to avoid deadlock, we do that in
1753	 * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
1754	 * warning from del_timer().
1755	 */
1756	if (ar->debug.htt_stats_mask != 0)
1757		cancel_delayed_work(&ar->debug.htt_stats_dwork);
1758
1759	ath10k_wmi_pdev_pktlog_disable(ar);
1760}
1761
1762static ssize_t ath10k_write_simulate_radar(struct file *file,
1763					   const char __user *user_buf,
1764					   size_t count, loff_t *ppos)
1765{
1766	struct ath10k *ar = file->private_data;
1767	struct ath10k_vif *arvif;
1768
1769	/* Just check for the first vif alone, as all the vifs will be
1770	 * sharing the same channel and if the channel is disabled, all the
1771	 * vifs will share the same 'is_started' state.
1772	 */
1773	arvif = list_first_entry(&ar->arvifs, typeof(*arvif), list);
1774	if (!arvif->is_started)
1775		return -EINVAL;
1776
1777	ieee80211_radar_detected(ar->hw);
1778
1779	return count;
1780}
1781
1782static const struct file_operations fops_simulate_radar = {
1783	.write = ath10k_write_simulate_radar,
1784	.open = simple_open,
1785	.owner = THIS_MODULE,
1786	.llseek = default_llseek,
1787};
1788
1789#define ATH10K_DFS_STAT(s, p) (\
1790	len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1791			 ar->debug.dfs_stats.p))
1792
1793#define ATH10K_DFS_POOL_STAT(s, p) (\
1794	len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1795			 ar->debug.dfs_pool_stats.p))
1796
1797static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
1798				     size_t count, loff_t *ppos)
1799{
1800	int retval = 0, len = 0;
1801	const int size = 8000;
1802	struct ath10k *ar = file->private_data;
1803	char *buf;
1804
1805	buf = kzalloc(size, GFP_KERNEL);
1806	if (buf == NULL)
1807		return -ENOMEM;
1808
1809	if (!ar->dfs_detector) {
1810		len += scnprintf(buf + len, size - len, "DFS not enabled\n");
1811		goto exit;
1812	}
1813
1814	ar->debug.dfs_pool_stats =
1815			ar->dfs_detector->get_stats(ar->dfs_detector);
1816
1817	len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
1818
1819	ATH10K_DFS_STAT("reported phy errors", phy_errors);
1820	ATH10K_DFS_STAT("pulse events reported", pulses_total);
1821	ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
1822	ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
1823	ATH10K_DFS_STAT("Radars detected", radar_detected);
1824
1825	len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
1826	ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
1827	ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
1828	ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
1829	ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
1830	ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
1831	ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
1832	ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
1833
1834exit:
1835	if (len > size)
1836		len = size;
1837
1838	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1839	kfree(buf);
1840
1841	return retval;
1842}
1843
1844static const struct file_operations fops_dfs_stats = {
1845	.read = ath10k_read_dfs_stats,
1846	.open = simple_open,
1847	.owner = THIS_MODULE,
1848	.llseek = default_llseek,
1849};
1850
1851static ssize_t ath10k_write_pktlog_filter(struct file *file,
1852					  const char __user *ubuf,
1853					  size_t count, loff_t *ppos)
1854{
1855	struct ath10k *ar = file->private_data;
1856	u32 filter;
1857	int ret;
1858
1859	if (kstrtouint_from_user(ubuf, count, 0, &filter))
1860		return -EINVAL;
1861
1862	mutex_lock(&ar->conf_mutex);
1863
1864	if (ar->state != ATH10K_STATE_ON) {
1865		ar->pktlog_filter = filter;
1866		ret = count;
1867		goto out;
1868	}
1869
1870	if (filter == ar->pktlog_filter) {
1871		ret = count;
1872		goto out;
1873	}
1874
1875	if (filter) {
1876		ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
1877		if (ret) {
1878			ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
1879				    ar->pktlog_filter, ret);
1880			goto out;
1881		}
1882	} else {
1883		ret = ath10k_wmi_pdev_pktlog_disable(ar);
1884		if (ret) {
1885			ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1886			goto out;
1887		}
1888	}
1889
1890	ar->pktlog_filter = filter;
1891	ret = count;
1892
1893out:
1894	mutex_unlock(&ar->conf_mutex);
1895	return ret;
1896}
1897
1898static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf,
1899					 size_t count, loff_t *ppos)
1900{
1901	char buf[32];
1902	struct ath10k *ar = file->private_data;
1903	int len = 0;
1904
1905	mutex_lock(&ar->conf_mutex);
1906	len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
1907			ar->pktlog_filter);
1908	mutex_unlock(&ar->conf_mutex);
1909
1910	return simple_read_from_buffer(ubuf, count, ppos, buf, len);
1911}
1912
1913static const struct file_operations fops_pktlog_filter = {
1914	.read = ath10k_read_pktlog_filter,
1915	.write = ath10k_write_pktlog_filter,
1916	.open = simple_open
1917};
1918
1919static ssize_t ath10k_write_quiet_period(struct file *file,
1920					 const char __user *ubuf,
1921					 size_t count, loff_t *ppos)
1922{
1923	struct ath10k *ar = file->private_data;
1924	u32 period;
1925
1926	if (kstrtouint_from_user(ubuf, count, 0, &period))
1927		return -EINVAL;
1928
1929	if (period < ATH10K_QUIET_PERIOD_MIN) {
1930		ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n",
1931			    period);
1932		return -EINVAL;
1933	}
1934	mutex_lock(&ar->conf_mutex);
1935	ar->thermal.quiet_period = period;
1936	ath10k_thermal_set_throttling(ar);
1937	mutex_unlock(&ar->conf_mutex);
1938
1939	return count;
1940}
1941
1942static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf,
1943					size_t count, loff_t *ppos)
1944{
1945	char buf[32];
1946	struct ath10k *ar = file->private_data;
1947	int len = 0;
1948
1949	mutex_lock(&ar->conf_mutex);
1950	len = scnprintf(buf, sizeof(buf) - len, "%d\n",
1951			ar->thermal.quiet_period);
1952	mutex_unlock(&ar->conf_mutex);
1953
1954	return simple_read_from_buffer(ubuf, count, ppos, buf, len);
1955}
1956
1957static const struct file_operations fops_quiet_period = {
1958	.read = ath10k_read_quiet_period,
1959	.write = ath10k_write_quiet_period,
1960	.open = simple_open
1961};
1962
1963static ssize_t ath10k_write_btcoex(struct file *file,
1964				   const char __user *ubuf,
1965				   size_t count, loff_t *ppos)
1966{
1967	struct ath10k *ar = file->private_data;
1968	ssize_t ret;
 
 
1969	bool val;
1970	u32 pdev_param;
1971
1972	ret = kstrtobool_from_user(ubuf, count, &val);
1973	if (ret)
1974		return ret;
1975
1976	if (!ar->coex_support)
1977		return -EOPNOTSUPP;
 
 
1978
1979	mutex_lock(&ar->conf_mutex);
1980
1981	if (ar->state != ATH10K_STATE_ON &&
1982	    ar->state != ATH10K_STATE_RESTARTED) {
1983		ret = -ENETDOWN;
1984		goto exit;
1985	}
1986
1987	if (!(test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags) ^ val)) {
1988		ret = count;
1989		goto exit;
1990	}
1991
1992	pdev_param = ar->wmi.pdev_param->enable_btcoex;
1993	if (test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
1994		     ar->running_fw->fw_file.fw_features)) {
1995		ret = ath10k_wmi_pdev_set_param(ar, pdev_param, val);
1996		if (ret) {
1997			ath10k_warn(ar, "failed to enable btcoex: %zd\n", ret);
1998			ret = count;
1999			goto exit;
2000		}
2001	} else {
2002		ath10k_info(ar, "restarting firmware due to btcoex change");
2003		ath10k_core_start_recovery(ar);
2004	}
2005
2006	if (val)
2007		set_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
2008	else
2009		clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
2010
2011	ret = count;
2012
2013exit:
2014	mutex_unlock(&ar->conf_mutex);
2015
2016	return ret;
2017}
2018
2019static ssize_t ath10k_read_btcoex(struct file *file, char __user *ubuf,
2020				  size_t count, loff_t *ppos)
2021{
2022	char buf[32];
2023	struct ath10k *ar = file->private_data;
2024	int len = 0;
2025
2026	mutex_lock(&ar->conf_mutex);
2027	len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2028			test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags));
2029	mutex_unlock(&ar->conf_mutex);
2030
2031	return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2032}
2033
2034static const struct file_operations fops_btcoex = {
2035	.read = ath10k_read_btcoex,
2036	.write = ath10k_write_btcoex,
2037	.open = simple_open
2038};
2039
2040static ssize_t ath10k_write_enable_extd_tx_stats(struct file *file,
2041						 const char __user *ubuf,
2042						 size_t count, loff_t *ppos)
2043{
2044	struct ath10k *ar = file->private_data;
2045	u32 filter;
2046	int ret;
2047
2048	if (kstrtouint_from_user(ubuf, count, 0, &filter))
2049		return -EINVAL;
2050
2051	mutex_lock(&ar->conf_mutex);
2052
2053	if (ar->state != ATH10K_STATE_ON) {
2054		ar->debug.enable_extd_tx_stats = filter;
2055		ret = count;
2056		goto out;
2057	}
2058
2059	if (filter == ar->debug.enable_extd_tx_stats) {
2060		ret = count;
2061		goto out;
2062	}
2063
2064	ar->debug.enable_extd_tx_stats = filter;
2065	ret = count;
2066
2067out:
2068	mutex_unlock(&ar->conf_mutex);
2069	return ret;
2070}
2071
2072static ssize_t ath10k_read_enable_extd_tx_stats(struct file *file,
2073						char __user *ubuf,
2074						size_t count, loff_t *ppos)
2075
2076{
2077	char buf[32];
2078	struct ath10k *ar = file->private_data;
2079	int len = 0;
2080
2081	mutex_lock(&ar->conf_mutex);
2082	len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
2083			ar->debug.enable_extd_tx_stats);
2084	mutex_unlock(&ar->conf_mutex);
2085
2086	return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2087}
2088
2089static const struct file_operations fops_enable_extd_tx_stats = {
2090	.read = ath10k_read_enable_extd_tx_stats,
2091	.write = ath10k_write_enable_extd_tx_stats,
2092	.open = simple_open
2093};
2094
2095static ssize_t ath10k_write_peer_stats(struct file *file,
2096				       const char __user *ubuf,
2097				       size_t count, loff_t *ppos)
2098{
2099	struct ath10k *ar = file->private_data;
2100	ssize_t ret;
 
 
2101	bool val;
2102
2103	ret = kstrtobool_from_user(ubuf, count, &val);
2104	if (ret)
2105		return ret;
 
 
 
 
 
2106
2107	mutex_lock(&ar->conf_mutex);
2108
2109	if (ar->state != ATH10K_STATE_ON &&
2110	    ar->state != ATH10K_STATE_RESTARTED) {
2111		ret = -ENETDOWN;
2112		goto exit;
2113	}
2114
2115	if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val)) {
2116		ret = count;
2117		goto exit;
2118	}
2119
2120	if (val)
2121		set_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
2122	else
2123		clear_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
2124
2125	ath10k_info(ar, "restarting firmware due to Peer stats change");
2126
2127	ath10k_core_start_recovery(ar);
2128	ret = count;
2129
2130exit:
2131	mutex_unlock(&ar->conf_mutex);
2132	return ret;
2133}
2134
2135static ssize_t ath10k_read_peer_stats(struct file *file, char __user *ubuf,
2136				      size_t count, loff_t *ppos)
2137
2138{
2139	char buf[32];
2140	struct ath10k *ar = file->private_data;
2141	int len = 0;
2142
2143	mutex_lock(&ar->conf_mutex);
2144	len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2145			test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags));
2146	mutex_unlock(&ar->conf_mutex);
2147
2148	return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2149}
2150
2151static const struct file_operations fops_peer_stats = {
2152	.read = ath10k_read_peer_stats,
2153	.write = ath10k_write_peer_stats,
2154	.open = simple_open
2155};
2156
2157static ssize_t ath10k_debug_fw_checksums_read(struct file *file,
2158					      char __user *user_buf,
2159					      size_t count, loff_t *ppos)
2160{
2161	struct ath10k *ar = file->private_data;
2162	size_t len = 0, buf_len = 4096;
2163	ssize_t ret_cnt;
2164	char *buf;
2165
2166	buf = kzalloc(buf_len, GFP_KERNEL);
2167	if (!buf)
2168		return -ENOMEM;
2169
2170	mutex_lock(&ar->conf_mutex);
2171
2172	len += scnprintf(buf + len, buf_len - len,
2173			 "firmware-N.bin\t\t%08x\n",
2174			 crc32_le(0, ar->normal_mode_fw.fw_file.firmware->data,
2175				  ar->normal_mode_fw.fw_file.firmware->size));
2176	len += scnprintf(buf + len, buf_len - len,
2177			 "athwlan\t\t\t%08x\n",
2178			 crc32_le(0, ar->normal_mode_fw.fw_file.firmware_data,
2179				  ar->normal_mode_fw.fw_file.firmware_len));
2180	len += scnprintf(buf + len, buf_len - len,
2181			 "otp\t\t\t%08x\n",
2182			 crc32_le(0, ar->normal_mode_fw.fw_file.otp_data,
2183				  ar->normal_mode_fw.fw_file.otp_len));
2184	len += scnprintf(buf + len, buf_len - len,
2185			 "codeswap\t\t%08x\n",
2186			 crc32_le(0, ar->normal_mode_fw.fw_file.codeswap_data,
2187				  ar->normal_mode_fw.fw_file.codeswap_len));
2188	len += scnprintf(buf + len, buf_len - len,
2189			 "board-N.bin\t\t%08x\n",
2190			 crc32_le(0, ar->normal_mode_fw.board->data,
2191				  ar->normal_mode_fw.board->size));
2192	len += scnprintf(buf + len, buf_len - len,
2193			 "board\t\t\t%08x\n",
2194			 crc32_le(0, ar->normal_mode_fw.board_data,
2195				  ar->normal_mode_fw.board_len));
2196
2197	ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
2198
2199	mutex_unlock(&ar->conf_mutex);
2200
2201	kfree(buf);
2202	return ret_cnt;
2203}
2204
2205static const struct file_operations fops_fw_checksums = {
2206	.read = ath10k_debug_fw_checksums_read,
2207	.open = simple_open,
2208	.owner = THIS_MODULE,
2209	.llseek = default_llseek,
2210};
2211
2212static ssize_t ath10k_sta_tid_stats_mask_read(struct file *file,
2213					      char __user *user_buf,
2214					      size_t count, loff_t *ppos)
2215{
2216	struct ath10k *ar = file->private_data;
2217	char buf[32];
2218	size_t len;
2219
2220	len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->sta_tid_stats_mask);
2221	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2222}
2223
2224static ssize_t ath10k_sta_tid_stats_mask_write(struct file *file,
2225					       const char __user *user_buf,
2226					       size_t count, loff_t *ppos)
2227{
2228	struct ath10k *ar = file->private_data;
2229	ssize_t ret;
 
2230	u32 mask;
2231
2232	ret = kstrtoint_from_user(user_buf, count, 0, &mask);
2233	if (ret)
2234		return ret;
 
 
 
 
2235
2236	ar->sta_tid_stats_mask = mask;
2237
2238	return count;
2239}
2240
2241static const struct file_operations fops_sta_tid_stats_mask = {
2242	.read = ath10k_sta_tid_stats_mask_read,
2243	.write = ath10k_sta_tid_stats_mask_write,
2244	.open = simple_open,
2245	.owner = THIS_MODULE,
2246	.llseek = default_llseek,
2247};
2248
2249static int ath10k_debug_tpc_stats_final_request(struct ath10k *ar)
2250{
2251	int ret;
2252	unsigned long time_left;
2253
2254	lockdep_assert_held(&ar->conf_mutex);
2255
2256	reinit_completion(&ar->debug.tpc_complete);
2257
2258	ret = ath10k_wmi_pdev_get_tpc_table_cmdid(ar, WMI_TPC_CONFIG_PARAM);
2259	if (ret) {
2260		ath10k_warn(ar, "failed to request tpc table cmdid: %d\n", ret);
2261		return ret;
2262	}
2263
2264	time_left = wait_for_completion_timeout(&ar->debug.tpc_complete,
2265						1 * HZ);
2266	if (time_left == 0)
2267		return -ETIMEDOUT;
2268
2269	return 0;
2270}
2271
2272static int ath10k_tpc_stats_final_open(struct inode *inode, struct file *file)
2273{
2274	struct ath10k *ar = inode->i_private;
2275	void *buf;
2276	int ret;
2277
2278	mutex_lock(&ar->conf_mutex);
2279
2280	if (ar->state != ATH10K_STATE_ON) {
2281		ret = -ENETDOWN;
2282		goto err_unlock;
2283	}
2284
2285	buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
2286	if (!buf) {
2287		ret = -ENOMEM;
2288		goto err_unlock;
2289	}
2290
2291	ret = ath10k_debug_tpc_stats_final_request(ar);
2292	if (ret) {
2293		ath10k_warn(ar, "failed to request tpc stats final: %d\n",
2294			    ret);
2295		goto err_free;
2296	}
2297
2298	ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
2299	file->private_data = buf;
2300
2301	mutex_unlock(&ar->conf_mutex);
2302	return 0;
2303
2304err_free:
2305	vfree(buf);
2306
2307err_unlock:
2308	mutex_unlock(&ar->conf_mutex);
2309	return ret;
2310}
2311
2312static int ath10k_tpc_stats_final_release(struct inode *inode,
2313					  struct file *file)
2314{
2315	vfree(file->private_data);
2316
2317	return 0;
2318}
2319
2320static ssize_t ath10k_tpc_stats_final_read(struct file *file,
2321					   char __user *user_buf,
2322					   size_t count, loff_t *ppos)
2323{
2324	const char *buf = file->private_data;
2325	unsigned int len = strlen(buf);
2326
2327	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2328}
2329
2330static const struct file_operations fops_tpc_stats_final = {
2331	.open = ath10k_tpc_stats_final_open,
2332	.release = ath10k_tpc_stats_final_release,
2333	.read = ath10k_tpc_stats_final_read,
2334	.owner = THIS_MODULE,
2335	.llseek = default_llseek,
2336};
2337
2338static ssize_t ath10k_write_warm_hw_reset(struct file *file,
2339					  const char __user *user_buf,
2340					  size_t count, loff_t *ppos)
2341{
2342	struct ath10k *ar = file->private_data;
2343	int ret;
2344	bool val;
2345
2346	if (kstrtobool_from_user(user_buf, count, &val))
2347		return -EFAULT;
2348
2349	if (!val)
2350		return -EINVAL;
2351
2352	mutex_lock(&ar->conf_mutex);
2353
2354	if (ar->state != ATH10K_STATE_ON) {
2355		ret = -ENETDOWN;
2356		goto exit;
2357	}
2358
2359	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->pdev_reset,
2360					WMI_RST_MODE_WARM_RESET);
2361
2362	if (ret) {
2363		ath10k_warn(ar, "failed to enable warm hw reset: %d\n", ret);
2364		goto exit;
2365	}
2366
2367	ret = count;
2368
2369exit:
2370	mutex_unlock(&ar->conf_mutex);
2371	return ret;
2372}
2373
2374static const struct file_operations fops_warm_hw_reset = {
2375	.write = ath10k_write_warm_hw_reset,
2376	.open = simple_open,
2377	.owner = THIS_MODULE,
2378	.llseek = default_llseek,
2379};
2380
2381static void ath10k_peer_ps_state_disable(void *data,
2382					 struct ieee80211_sta *sta)
2383{
2384	struct ath10k *ar = data;
2385	struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
2386
2387	spin_lock_bh(&ar->data_lock);
2388	arsta->peer_ps_state = WMI_PEER_PS_STATE_DISABLED;
2389	spin_unlock_bh(&ar->data_lock);
2390}
2391
2392static ssize_t ath10k_write_ps_state_enable(struct file *file,
2393					    const char __user *user_buf,
2394					    size_t count, loff_t *ppos)
2395{
2396	struct ath10k *ar = file->private_data;
2397	int ret;
2398	u32 param;
2399	u8 ps_state_enable;
2400
2401	if (kstrtou8_from_user(user_buf, count, 0, &ps_state_enable))
2402		return -EINVAL;
2403
2404	if (ps_state_enable > 1)
2405		return -EINVAL;
2406
2407	mutex_lock(&ar->conf_mutex);
2408
2409	if (ar->ps_state_enable == ps_state_enable) {
2410		ret = count;
2411		goto exit;
2412	}
2413
2414	param = ar->wmi.pdev_param->peer_sta_ps_statechg_enable;
2415	ret = ath10k_wmi_pdev_set_param(ar, param, ps_state_enable);
2416	if (ret) {
2417		ath10k_warn(ar, "failed to enable ps_state_enable: %d\n",
2418			    ret);
2419		goto exit;
2420	}
2421	ar->ps_state_enable = ps_state_enable;
2422
2423	if (!ar->ps_state_enable)
2424		ieee80211_iterate_stations_atomic(ar->hw,
2425						  ath10k_peer_ps_state_disable,
2426						  ar);
2427
2428	ret = count;
2429
2430exit:
2431	mutex_unlock(&ar->conf_mutex);
2432
2433	return ret;
2434}
2435
2436static ssize_t ath10k_read_ps_state_enable(struct file *file,
2437					   char __user *user_buf,
2438					   size_t count, loff_t *ppos)
2439{
2440	struct ath10k *ar = file->private_data;
2441	int len = 0;
2442	char buf[32];
2443
2444	mutex_lock(&ar->conf_mutex);
2445	len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2446			ar->ps_state_enable);
2447	mutex_unlock(&ar->conf_mutex);
2448
2449	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2450}
2451
2452static const struct file_operations fops_ps_state_enable = {
2453	.read = ath10k_read_ps_state_enable,
2454	.write = ath10k_write_ps_state_enable,
2455	.open = simple_open,
2456	.owner = THIS_MODULE,
2457	.llseek = default_llseek,
2458};
2459
2460static ssize_t ath10k_write_reset_htt_stats(struct file *file,
2461					    const char __user *user_buf,
2462					    size_t count, loff_t *ppos)
2463{
2464	struct ath10k *ar = file->private_data;
2465	unsigned long reset;
2466	int ret;
2467
2468	ret = kstrtoul_from_user(user_buf, count, 0, &reset);
2469	if (ret)
2470		return ret;
2471
2472	if (reset == 0 || reset > 0x1ffff)
2473		return -EINVAL;
2474
2475	mutex_lock(&ar->conf_mutex);
2476
2477	ar->debug.reset_htt_stats = reset;
2478
2479	ret = ath10k_debug_htt_stats_req(ar);
2480	if (ret)
2481		goto out;
2482
2483	ar->debug.reset_htt_stats = 0;
2484	ret = count;
2485
2486out:
2487	mutex_unlock(&ar->conf_mutex);
2488	return ret;
2489}
2490
2491static const struct file_operations fops_reset_htt_stats = {
2492	.write = ath10k_write_reset_htt_stats,
2493	.owner = THIS_MODULE,
2494	.open = simple_open,
2495	.llseek = default_llseek,
2496};
2497
2498int ath10k_debug_create(struct ath10k *ar)
2499{
2500	ar->debug.cal_data = vzalloc(ATH10K_DEBUG_CAL_DATA_LEN);
2501	if (!ar->debug.cal_data)
2502		return -ENOMEM;
2503
2504	INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs);
2505	INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs);
2506	INIT_LIST_HEAD(&ar->debug.fw_stats.peers);
2507	INIT_LIST_HEAD(&ar->debug.fw_stats.peers_extd);
2508
2509	return 0;
2510}
2511
2512void ath10k_debug_destroy(struct ath10k *ar)
2513{
2514	vfree(ar->debug.cal_data);
2515	ar->debug.cal_data = NULL;
2516
2517	ath10k_debug_fw_stats_reset(ar);
2518
2519	kfree(ar->debug.tpc_stats);
2520	kfree(ar->debug.tpc_stats_final);
2521}
2522
2523int ath10k_debug_register(struct ath10k *ar)
2524{
2525	ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
2526						   ar->hw->wiphy->debugfsdir);
2527	if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) {
2528		if (IS_ERR(ar->debug.debugfs_phy))
2529			return PTR_ERR(ar->debug.debugfs_phy);
2530
2531		return -ENOMEM;
2532	}
2533
2534	INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
2535			  ath10k_debug_htt_stats_dwork);
2536
2537	init_completion(&ar->debug.tpc_complete);
2538	init_completion(&ar->debug.fw_stats_complete);
2539
2540	debugfs_create_file("fw_stats", 0400, ar->debug.debugfs_phy, ar,
2541			    &fops_fw_stats);
2542
2543	debugfs_create_file("fw_reset_stats", 0400, ar->debug.debugfs_phy, ar,
2544			    &fops_fw_reset_stats);
2545
2546	debugfs_create_file("wmi_services", 0400, ar->debug.debugfs_phy, ar,
2547			    &fops_wmi_services);
2548
2549	debugfs_create_file("simulate_fw_crash", 0600, ar->debug.debugfs_phy, ar,
2550			    &fops_simulate_fw_crash);
2551
2552	debugfs_create_file("reg_addr", 0600, ar->debug.debugfs_phy, ar,
2553			    &fops_reg_addr);
2554
2555	debugfs_create_file("reg_value", 0600, ar->debug.debugfs_phy, ar,
2556			    &fops_reg_value);
2557
2558	debugfs_create_file("mem_value", 0600, ar->debug.debugfs_phy, ar,
2559			    &fops_mem_value);
2560
2561	debugfs_create_file("chip_id", 0400, ar->debug.debugfs_phy, ar,
2562			    &fops_chip_id);
2563
2564	debugfs_create_file("htt_stats_mask", 0600, ar->debug.debugfs_phy, ar,
2565			    &fops_htt_stats_mask);
2566
2567	debugfs_create_file("htt_max_amsdu_ampdu", 0600, ar->debug.debugfs_phy, ar,
2568			    &fops_htt_max_amsdu_ampdu);
2569
2570	debugfs_create_file("fw_dbglog", 0600, ar->debug.debugfs_phy, ar,
2571			    &fops_fw_dbglog);
2572
2573	if (!test_bit(ATH10K_FW_FEATURE_NON_BMI,
2574		      ar->normal_mode_fw.fw_file.fw_features)) {
2575		debugfs_create_file("cal_data", 0400, ar->debug.debugfs_phy, ar,
2576				    &fops_cal_data);
2577
2578		debugfs_create_file("nf_cal_period", 0600, ar->debug.debugfs_phy, ar,
2579				    &fops_nf_cal_period);
2580	}
2581
2582	debugfs_create_file("ani_enable", 0600, ar->debug.debugfs_phy, ar,
2583			    &fops_ani_enable);
2584
 
 
 
2585	if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED)) {
2586		debugfs_create_file("dfs_simulate_radar", 0200, ar->debug.debugfs_phy,
2587				    ar, &fops_simulate_radar);
2588
2589		debugfs_create_bool("dfs_block_radar_events", 0200,
2590				    ar->debug.debugfs_phy,
2591				    &ar->dfs_block_radar_events);
2592
2593		debugfs_create_file("dfs_stats", 0400, ar->debug.debugfs_phy, ar,
2594				    &fops_dfs_stats);
2595	}
2596
2597	debugfs_create_file("pktlog_filter", 0644, ar->debug.debugfs_phy, ar,
2598			    &fops_pktlog_filter);
2599
2600	if (test_bit(WMI_SERVICE_THERM_THROT, ar->wmi.svc_map))
2601		debugfs_create_file("quiet_period", 0644, ar->debug.debugfs_phy, ar,
2602				    &fops_quiet_period);
2603
2604	debugfs_create_file("tpc_stats", 0400, ar->debug.debugfs_phy, ar,
2605			    &fops_tpc_stats);
2606
2607	if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map))
2608		debugfs_create_file("btcoex", 0644, ar->debug.debugfs_phy, ar,
2609				    &fops_btcoex);
2610
2611	if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map)) {
2612		debugfs_create_file("peer_stats", 0644, ar->debug.debugfs_phy, ar,
2613				    &fops_peer_stats);
2614
2615		debugfs_create_file("enable_extd_tx_stats", 0644,
2616				    ar->debug.debugfs_phy, ar,
2617				    &fops_enable_extd_tx_stats);
2618	}
2619
2620	debugfs_create_file("fw_checksums", 0400, ar->debug.debugfs_phy, ar,
2621			    &fops_fw_checksums);
2622
2623	if (IS_ENABLED(CONFIG_MAC80211_DEBUGFS))
2624		debugfs_create_file("sta_tid_stats_mask", 0600,
2625				    ar->debug.debugfs_phy,
2626				    ar, &fops_sta_tid_stats_mask);
2627
2628	if (test_bit(WMI_SERVICE_TPC_STATS_FINAL, ar->wmi.svc_map))
2629		debugfs_create_file("tpc_stats_final", 0400,
2630				    ar->debug.debugfs_phy, ar,
2631				    &fops_tpc_stats_final);
2632
2633	if (test_bit(WMI_SERVICE_RESET_CHIP, ar->wmi.svc_map))
2634		debugfs_create_file("warm_hw_reset", 0600,
2635				    ar->debug.debugfs_phy, ar,
2636				    &fops_warm_hw_reset);
2637
2638	debugfs_create_file("ps_state_enable", 0600, ar->debug.debugfs_phy, ar,
2639			    &fops_ps_state_enable);
2640
2641	debugfs_create_file("reset_htt_stats", 0200, ar->debug.debugfs_phy, ar,
2642			    &fops_reset_htt_stats);
2643
2644	return 0;
2645}
2646
2647void ath10k_debug_unregister(struct ath10k *ar)
2648{
2649	cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
2650}
2651
2652#endif /* CONFIG_ATH10K_DEBUGFS */
2653
2654#ifdef CONFIG_ATH10K_DEBUG
2655void __ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
2656		  const char *fmt, ...)
2657{
2658	struct va_format vaf;
2659	va_list args;
2660
2661	va_start(args, fmt);
2662
2663	vaf.fmt = fmt;
2664	vaf.va = &args;
2665
2666	if (ath10k_debug_mask & mask)
2667		dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
2668
2669	trace_ath10k_log_dbg(ar, mask, &vaf);
2670
2671	va_end(args);
2672}
2673EXPORT_SYMBOL(__ath10k_dbg);
2674
2675void ath10k_dbg_dump(struct ath10k *ar,
2676		     enum ath10k_debug_mask mask,
2677		     const char *msg, const char *prefix,
2678		     const void *buf, size_t len)
2679{
2680	char linebuf[256];
2681	size_t linebuflen;
2682	const void *ptr;
2683
2684	if (ath10k_debug_mask & mask) {
2685		if (msg)
2686			__ath10k_dbg(ar, mask, "%s\n", msg);
2687
2688		for (ptr = buf; (ptr - buf) < len; ptr += 16) {
2689			linebuflen = 0;
2690			linebuflen += scnprintf(linebuf + linebuflen,
2691						sizeof(linebuf) - linebuflen,
2692						"%s%08x: ",
2693						(prefix ? prefix : ""),
2694						(unsigned int)(ptr - buf));
2695			hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1,
2696					   linebuf + linebuflen,
2697					   sizeof(linebuf) - linebuflen, true);
2698			dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf);
2699		}
2700	}
2701
2702	/* tracing code doesn't like null strings :/ */
2703	trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
2704				  buf, len);
2705}
2706EXPORT_SYMBOL(ath10k_dbg_dump);
2707
2708#endif /* CONFIG_ATH10K_DEBUG */