1// SPDX-License-Identifier: GPL-2.0-only
   2/******************************************************************************
   3 *
   4 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
   5 * Copyright (C) 2018 Intel Corporation
   6 *****************************************************************************/
   7
   8#include <linux/slab.h>
   9#include <linux/kernel.h>
  10#include <linux/module.h>
  11#include <linux/debugfs.h>
  12#include <linux/ieee80211.h>
  13#include <net/mac80211.h>
  14
  15#include "iwl-debug.h"
  16#include "iwl-trans.h"
  17#include "iwl-io.h"
  18#include "dev.h"
  19#include "agn.h"
  20
  21/* create and remove of files */
  22#define DEBUGFS_ADD_FILE(name, parent, mode) do {			\
  23	debugfs_create_file(#name, mode, parent, priv,			\
  24			    &iwl_dbgfs_##name##_ops);			\
  25} while (0)
  26
  27/* file operation */
  28#define DEBUGFS_READ_FILE_OPS(name)                                     \
  29static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  30	.read = iwl_dbgfs_##name##_read,				\
  31	.open = simple_open,						\
  32	.llseek = generic_file_llseek,					\
  33};
  34
  35#define DEBUGFS_WRITE_FILE_OPS(name)                                    \
  36static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  37	.write = iwl_dbgfs_##name##_write,                              \
  38	.open = simple_open,						\
  39	.llseek = generic_file_llseek,					\
  40};
  41
  42
  43#define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
  44static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  45	.write = iwl_dbgfs_##name##_write,                              \
  46	.read = iwl_dbgfs_##name##_read,                                \
  47	.open = simple_open,						\
  48	.llseek = generic_file_llseek,					\
  49};
  50
  51static ssize_t iwl_dbgfs_sram_read(struct file *file,
  52					char __user *user_buf,
  53					size_t count, loff_t *ppos)
  54{
  55	u32 val = 0;
  56	char *buf;
  57	ssize_t ret;
  58	int i = 0;
  59	bool device_format = false;
  60	int offset = 0;
  61	int len = 0;
  62	int pos = 0;
  63	int sram;
  64	struct iwl_priv *priv = file->private_data;
  65	const struct fw_img *img;
  66	size_t bufsz;
  67
  68	if (!iwl_is_ready_rf(priv))
  69		return -EAGAIN;
  70
  71	/* default is to dump the entire data segment */
  72	if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
  73		priv->dbgfs_sram_offset = 0x800000;
  74		if (!priv->ucode_loaded)
  75			return -EINVAL;
  76		img = &priv->fw->img[priv->cur_ucode];
  77		priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
  78	}
  79	len = priv->dbgfs_sram_len;
  80
  81	if (len == -4) {
  82		device_format = true;
  83		len = 4;
  84	}
  85
  86	bufsz =  50 + len * 4;
  87	buf = kmalloc(bufsz, GFP_KERNEL);
  88	if (!buf)
  89		return -ENOMEM;
  90
  91	pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
  92			 len);
  93	pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
  94			priv->dbgfs_sram_offset);
  95
  96	/* adjust sram address since reads are only on even u32 boundaries */
  97	offset = priv->dbgfs_sram_offset & 0x3;
  98	sram = priv->dbgfs_sram_offset & ~0x3;
  99
 100	/* read the first u32 from sram */
 101	val = iwl_trans_read_mem32(priv->trans, sram);
 102
 103	for (; len; len--) {
 104		/* put the address at the start of every line */
 105		if (i == 0)
 106			pos += scnprintf(buf + pos, bufsz - pos,
 107				"%08X: ", sram + offset);
 108
 109		if (device_format)
 110			pos += scnprintf(buf + pos, bufsz - pos,
 111				"%02x", (val >> (8 * (3 - offset))) & 0xff);
 112		else
 113			pos += scnprintf(buf + pos, bufsz - pos,
 114				"%02x ", (val >> (8 * offset)) & 0xff);
 115
 116		/* if all bytes processed, read the next u32 from sram */
 117		if (++offset == 4) {
 118			sram += 4;
 119			offset = 0;
 120			val = iwl_trans_read_mem32(priv->trans, sram);
 121		}
 122
 123		/* put in extra spaces and split lines for human readability */
 124		if (++i == 16) {
 125			i = 0;
 126			pos += scnprintf(buf + pos, bufsz - pos, "\n");
 127		} else if (!(i & 7)) {
 128			pos += scnprintf(buf + pos, bufsz - pos, "   ");
 129		} else if (!(i & 3)) {
 130			pos += scnprintf(buf + pos, bufsz - pos, " ");
 131		}
 132	}
 133	if (i)
 134		pos += scnprintf(buf + pos, bufsz - pos, "\n");
 135
 136	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 137	kfree(buf);
 138	return ret;
 139}
 140
 141static ssize_t iwl_dbgfs_sram_write(struct file *file,
 142					const char __user *user_buf,
 143					size_t count, loff_t *ppos)
 144{
 145	struct iwl_priv *priv = file->private_data;
 146	char buf[64];
 147	int buf_size;
 148	u32 offset, len;
 149
 150	memset(buf, 0, sizeof(buf));
 151	buf_size = min(count, sizeof(buf) -  1);
 152	if (copy_from_user(buf, user_buf, buf_size))
 153		return -EFAULT;
 154
 155	if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 156		priv->dbgfs_sram_offset = offset;
 157		priv->dbgfs_sram_len = len;
 158	} else if (sscanf(buf, "%x", &offset) == 1) {
 159		priv->dbgfs_sram_offset = offset;
 160		priv->dbgfs_sram_len = -4;
 161	} else {
 162		priv->dbgfs_sram_offset = 0;
 163		priv->dbgfs_sram_len = 0;
 164	}
 165
 166	return count;
 167}
 168
 169static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
 170					  char __user *user_buf,
 171					  size_t count, loff_t *ppos)
 172{
 173	struct iwl_priv *priv = file->private_data;
 174	const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN];
 175
 176	if (!priv->wowlan_sram)
 177		return -ENODATA;
 178
 179	return simple_read_from_buffer(user_buf, count, ppos,
 180				       priv->wowlan_sram,
 181				       img->sec[IWL_UCODE_SECTION_DATA].len);
 182}
 183static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 184					size_t count, loff_t *ppos)
 185{
 186	struct iwl_priv *priv = file->private_data;
 187	struct iwl_station_entry *station;
 188	struct iwl_tid_data *tid_data;
 189	char *buf;
 190	int i, j, pos = 0;
 191	ssize_t ret;
 192	/* Add 30 for initial string */
 193	const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
 194
 195	buf = kmalloc(bufsz, GFP_KERNEL);
 196	if (!buf)
 197		return -ENOMEM;
 198
 199	pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
 200			priv->num_stations);
 201
 202	for (i = 0; i < IWLAGN_STATION_COUNT; i++) {
 203		station = &priv->stations[i];
 204		if (!station->used)
 205			continue;
 206		pos += scnprintf(buf + pos, bufsz - pos,
 207				 "station %d - addr: %pM, flags: %#x\n",
 208				 i, station->sta.sta.addr,
 209				 station->sta.station_flags_msk);
 210		pos += scnprintf(buf + pos, bufsz - pos,
 211				"TID seqno  next_rclmd "
 212				"rate_n_flags state txq\n");
 213
 214		for (j = 0; j < IWL_MAX_TID_COUNT; j++) {
 215			tid_data = &priv->tid_data[i][j];
 216			pos += scnprintf(buf + pos, bufsz - pos,
 217				"%d:  0x%.4x 0x%.4x     0x%.8x   "
 218				"%d     %.2d",
 219				j, tid_data->seq_number,
 220				tid_data->next_reclaimed,
 221				tid_data->agg.rate_n_flags,
 222				tid_data->agg.state,
 223				tid_data->agg.txq_id);
 224
 225			if (tid_data->agg.wait_for_ba)
 226				pos += scnprintf(buf + pos, bufsz - pos,
 227						 " - waitforba");
 228			pos += scnprintf(buf + pos, bufsz - pos, "\n");
 229		}
 230
 231		pos += scnprintf(buf + pos, bufsz - pos, "\n");
 232	}
 233
 234	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 235	kfree(buf);
 236	return ret;
 237}
 238
 239static ssize_t iwl_dbgfs_nvm_read(struct file *file,
 240				       char __user *user_buf,
 241				       size_t count,
 242				       loff_t *ppos)
 243{
 244	ssize_t ret;
 245	struct iwl_priv *priv = file->private_data;
 246	int pos = 0, ofs = 0, buf_size = 0;
 247	const u8 *ptr;
 248	char *buf;
 249	u16 nvm_ver;
 250	size_t eeprom_len = priv->eeprom_blob_size;
 251	buf_size = 4 * eeprom_len + 256;
 252
 253	if (eeprom_len % 16)
 254		return -ENODATA;
 255
 256	ptr = priv->eeprom_blob;
 257	if (!ptr)
 258		return -ENOMEM;
 259
 260	/* 4 characters for byte 0xYY */
 261	buf = kzalloc(buf_size, GFP_KERNEL);
 262	if (!buf)
 263		return -ENOMEM;
 264
 265	nvm_ver = priv->nvm_data->nvm_version;
 266	pos += scnprintf(buf + pos, buf_size - pos,
 267			 "NVM version: 0x%x\n", nvm_ver);
 268	for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
 269		pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x %16ph\n",
 270				 ofs, ptr + ofs);
 271	}
 272
 273	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 274	kfree(buf);
 275	return ret;
 276}
 277
 278static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 279				       size_t count, loff_t *ppos)
 280{
 281	struct iwl_priv *priv = file->private_data;
 282	struct ieee80211_channel *channels = NULL;
 283	const struct ieee80211_supported_band *supp_band = NULL;
 284	int pos = 0, i, bufsz = PAGE_SIZE;
 285	char *buf;
 286	ssize_t ret;
 287
 288	buf = kzalloc(bufsz, GFP_KERNEL);
 289	if (!buf)
 290		return -ENOMEM;
 291
 292	supp_band = iwl_get_hw_mode(priv, NL80211_BAND_2GHZ);
 293	if (supp_band) {
 294		channels = supp_band->channels;
 295
 296		pos += scnprintf(buf + pos, bufsz - pos,
 297				"Displaying %d channels in 2.4GHz band 802.11bg):\n",
 298				supp_band->n_channels);
 299
 300		for (i = 0; i < supp_band->n_channels; i++)
 301			pos += scnprintf(buf + pos, bufsz - pos,
 302					"%d: %ddBm: BSS%s%s, %s.\n",
 303					channels[i].hw_value,
 304					channels[i].max_power,
 305					channels[i].flags & IEEE80211_CHAN_RADAR ?
 306					" (IEEE 802.11h required)" : "",
 307					((channels[i].flags & IEEE80211_CHAN_NO_IR)
 308					|| (channels[i].flags &
 309					IEEE80211_CHAN_RADAR)) ? "" :
 310					", IBSS",
 311					channels[i].flags &
 312					IEEE80211_CHAN_NO_IR ?
 313					"passive only" : "active/passive");
 314	}
 315	supp_band = iwl_get_hw_mode(priv, NL80211_BAND_5GHZ);
 316	if (supp_band) {
 317		channels = supp_band->channels;
 318
 319		pos += scnprintf(buf + pos, bufsz - pos,
 320				"Displaying %d channels in 5.2GHz band (802.11a)\n",
 321				supp_band->n_channels);
 322
 323		for (i = 0; i < supp_band->n_channels; i++)
 324			pos += scnprintf(buf + pos, bufsz - pos,
 325					"%d: %ddBm: BSS%s%s, %s.\n",
 326					channels[i].hw_value,
 327					channels[i].max_power,
 328					channels[i].flags & IEEE80211_CHAN_RADAR ?
 329					" (IEEE 802.11h required)" : "",
 330					((channels[i].flags & IEEE80211_CHAN_NO_IR)
 331					|| (channels[i].flags &
 332					IEEE80211_CHAN_RADAR)) ? "" :
 333					", IBSS",
 334					channels[i].flags &
 335					IEEE80211_CHAN_NO_IR ?
 336					"passive only" : "active/passive");
 337	}
 338	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 339	kfree(buf);
 340	return ret;
 341}
 342
 343static ssize_t iwl_dbgfs_status_read(struct file *file,
 344						char __user *user_buf,
 345						size_t count, loff_t *ppos) {
 346
 347	struct iwl_priv *priv = file->private_data;
 348	char buf[512];
 349	int pos = 0;
 350	const size_t bufsz = sizeof(buf);
 351
 352	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 353		test_bit(STATUS_RF_KILL_HW, &priv->status));
 354	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 355		test_bit(STATUS_CT_KILL, &priv->status));
 356	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 357		test_bit(STATUS_ALIVE, &priv->status));
 358	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 359		test_bit(STATUS_READY, &priv->status));
 360	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 361		test_bit(STATUS_EXIT_PENDING, &priv->status));
 362	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 363		test_bit(STATUS_STATISTICS, &priv->status));
 364	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 365		test_bit(STATUS_SCANNING, &priv->status));
 366	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 367		test_bit(STATUS_SCAN_ABORTING, &priv->status));
 368	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 369		test_bit(STATUS_SCAN_HW, &priv->status));
 370	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 371		test_bit(STATUS_POWER_PMI, &priv->status));
 372	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 373		test_bit(STATUS_FW_ERROR, &priv->status));
 374	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 375}
 376
 377static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file,
 378					char __user *user_buf,
 379					size_t count, loff_t *ppos) {
 380
 381	struct iwl_priv *priv = file->private_data;
 382
 383	int pos = 0;
 384	int cnt = 0;
 385	char *buf;
 386	int bufsz = 24 * 64; /* 24 items * 64 char per item */
 387	ssize_t ret;
 388
 389	buf = kzalloc(bufsz, GFP_KERNEL);
 390	if (!buf)
 391		return -ENOMEM;
 392
 393	for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 394		if (priv->rx_handlers_stats[cnt] > 0)
 395			pos += scnprintf(buf + pos, bufsz - pos,
 396				"\tRx handler[%36s]:\t\t %u\n",
 397				iwl_get_cmd_string(priv->trans, (u32)cnt),
 398				priv->rx_handlers_stats[cnt]);
 399	}
 400
 401	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 402	kfree(buf);
 403	return ret;
 404}
 405
 406static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
 407					 const char __user *user_buf,
 408					 size_t count, loff_t *ppos)
 409{
 410	struct iwl_priv *priv = file->private_data;
 411
 412	char buf[8];
 413	int buf_size;
 414	u32 reset_flag;
 415
 416	memset(buf, 0, sizeof(buf));
 417	buf_size = min(count, sizeof(buf) -  1);
 418	if (copy_from_user(buf, user_buf, buf_size))
 419		return -EFAULT;
 420	if (sscanf(buf, "%x", &reset_flag) != 1)
 421		return -EFAULT;
 422	if (reset_flag == 0)
 423		memset(&priv->rx_handlers_stats[0], 0,
 424			sizeof(priv->rx_handlers_stats));
 425
 426	return count;
 427}
 428
 429static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 430				       size_t count, loff_t *ppos)
 431{
 432	struct iwl_priv *priv = file->private_data;
 433	struct iwl_rxon_context *ctx;
 434	int pos = 0, i;
 435	char buf[256 * NUM_IWL_RXON_CTX];
 436	const size_t bufsz = sizeof(buf);
 437
 438	for_each_context(priv, ctx) {
 439		pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
 440				 ctx->ctxid);
 441		for (i = 0; i < AC_NUM; i++) {
 442			pos += scnprintf(buf + pos, bufsz - pos,
 443				"\tcw_min\tcw_max\taifsn\ttxop\n");
 444			pos += scnprintf(buf + pos, bufsz - pos,
 445				"AC[%d]\t%u\t%u\t%u\t%u\n", i,
 446				ctx->qos_data.def_qos_parm.ac[i].cw_min,
 447				ctx->qos_data.def_qos_parm.ac[i].cw_max,
 448				ctx->qos_data.def_qos_parm.ac[i].aifsn,
 449				ctx->qos_data.def_qos_parm.ac[i].edca_txop);
 450		}
 451		pos += scnprintf(buf + pos, bufsz - pos, "\n");
 452	}
 453	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 454}
 455
 456static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 457				char __user *user_buf,
 458				size_t count, loff_t *ppos)
 459{
 460	struct iwl_priv *priv = file->private_data;
 461	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 462	struct iwl_tt_restriction *restriction;
 463	char buf[100];
 464	int pos = 0;
 465	const size_t bufsz = sizeof(buf);
 466
 467	pos += scnprintf(buf + pos, bufsz - pos,
 468			"Thermal Throttling Mode: %s\n",
 469			tt->advanced_tt ? "Advance" : "Legacy");
 470	pos += scnprintf(buf + pos, bufsz - pos,
 471			"Thermal Throttling State: %d\n",
 472			tt->state);
 473	if (tt->advanced_tt) {
 474		restriction = tt->restriction + tt->state;
 475		pos += scnprintf(buf + pos, bufsz - pos,
 476				"Tx mode: %d\n",
 477				restriction->tx_stream);
 478		pos += scnprintf(buf + pos, bufsz - pos,
 479				"Rx mode: %d\n",
 480				restriction->rx_stream);
 481		pos += scnprintf(buf + pos, bufsz - pos,
 482				"HT mode: %d\n",
 483				restriction->is_ht);
 484	}
 485	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 486}
 487
 488static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 489					 const char __user *user_buf,
 490					 size_t count, loff_t *ppos)
 491{
 492	struct iwl_priv *priv = file->private_data;
 493	char buf[8];
 494	int buf_size;
 495	int ht40;
 496
 497	memset(buf, 0, sizeof(buf));
 498	buf_size = min(count, sizeof(buf) -  1);
 499	if (copy_from_user(buf, user_buf, buf_size))
 500		return -EFAULT;
 501	if (sscanf(buf, "%d", &ht40) != 1)
 502		return -EFAULT;
 503	if (!iwl_is_any_associated(priv))
 504		priv->disable_ht40 = ht40 ? true : false;
 505	else
 506		return -EINVAL;
 507
 508	return count;
 509}
 510
 511static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 512					 char __user *user_buf,
 513					 size_t count, loff_t *ppos)
 514{
 515	struct iwl_priv *priv = file->private_data;
 516	char buf[100];
 517	int pos = 0;
 518	const size_t bufsz = sizeof(buf);
 519
 520	pos += scnprintf(buf + pos, bufsz - pos,
 521			"11n 40MHz Mode: %s\n",
 522			priv->disable_ht40 ? "Disabled" : "Enabled");
 523	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 524}
 525
 526static ssize_t iwl_dbgfs_temperature_read(struct file *file,
 527					 char __user *user_buf,
 528					 size_t count, loff_t *ppos)
 529{
 530	struct iwl_priv *priv = file->private_data;
 531	char buf[8];
 532	int pos = 0;
 533	const size_t bufsz = sizeof(buf);
 534
 535	pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->temperature);
 536	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 537}
 538
 539
 540static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 541						    const char __user *user_buf,
 542						    size_t count, loff_t *ppos)
 543{
 544	struct iwl_priv *priv = file->private_data;
 545	char buf[8];
 546	int buf_size;
 547	int value;
 548
 549	memset(buf, 0, sizeof(buf));
 550	buf_size = min(count, sizeof(buf) -  1);
 551	if (copy_from_user(buf, user_buf, buf_size))
 552		return -EFAULT;
 553
 554	if (sscanf(buf, "%d", &value) != 1)
 555		return -EINVAL;
 556
 557	/*
 558	 * Our users expect 0 to be "CAM", but 0 isn't actually
 559	 * valid here. However, let's not confuse them and present
 560	 * IWL_POWER_INDEX_1 as "1", not "0".
 561	 */
 562	if (value == 0)
 563		return -EINVAL;
 564	else if (value > 0)
 565		value -= 1;
 566
 567	if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 568		return -EINVAL;
 569
 570	if (!iwl_is_ready_rf(priv))
 571		return -EAGAIN;
 572
 573	priv->power_data.debug_sleep_level_override = value;
 574
 575	mutex_lock(&priv->mutex);
 576	iwl_power_update_mode(priv, true);
 577	mutex_unlock(&priv->mutex);
 578
 579	return count;
 580}
 581
 582static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 583						   char __user *user_buf,
 584						   size_t count, loff_t *ppos)
 585{
 586	struct iwl_priv *priv = file->private_data;
 587	char buf[10];
 588	int pos, value;
 589	const size_t bufsz = sizeof(buf);
 590
 591	/* see the write function */
 592	value = priv->power_data.debug_sleep_level_override;
 593	if (value >= 0)
 594		value += 1;
 595
 596	pos = scnprintf(buf, bufsz, "%d\n", value);
 597	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 598}
 599
 600static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 601						    char __user *user_buf,
 602						    size_t count, loff_t *ppos)
 603{
 604	struct iwl_priv *priv = file->private_data;
 605	char buf[200];
 606	int pos = 0, i;
 607	const size_t bufsz = sizeof(buf);
 608	struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 609
 610	pos += scnprintf(buf + pos, bufsz - pos,
 611			 "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 612	pos += scnprintf(buf + pos, bufsz - pos,
 613			 "RX/TX timeout: %d/%d usec\n",
 614			 le32_to_cpu(cmd->rx_data_timeout),
 615			 le32_to_cpu(cmd->tx_data_timeout));
 616	for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 617		pos += scnprintf(buf + pos, bufsz - pos,
 618				 "sleep_interval[%d]: %d\n", i,
 619				 le32_to_cpu(cmd->sleep_interval[i]));
 620
 621	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 622}
 623
 624DEBUGFS_READ_WRITE_FILE_OPS(sram);
 625DEBUGFS_READ_FILE_OPS(wowlan_sram);
 626DEBUGFS_READ_FILE_OPS(nvm);
 627DEBUGFS_READ_FILE_OPS(stations);
 628DEBUGFS_READ_FILE_OPS(channels);
 629DEBUGFS_READ_FILE_OPS(status);
 630DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers);
 631DEBUGFS_READ_FILE_OPS(qos);
 632DEBUGFS_READ_FILE_OPS(thermal_throttling);
 633DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 634DEBUGFS_READ_FILE_OPS(temperature);
 635DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 636DEBUGFS_READ_FILE_OPS(current_sleep_command);
 637
 638#define fmt_value	"  %-30s %10u\n"
 639#define fmt_hex		"  %-30s       0x%02X\n"
 640#define fmt_table	"  %-30s %10u  %10u  %10u  %10u\n"
 641#define fmt_header	"%-32s    current  cumulative       delta         max\n"
 642
 643static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
 644{
 645	int p = 0;
 646	u32 flag;
 647
 648	lockdep_assert_held(&priv->statistics.lock);
 649
 650	flag = le32_to_cpu(priv->statistics.flag);
 651
 652	p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
 653	if (flag & UCODE_STATISTICS_CLEAR_MSK)
 654		p += scnprintf(buf + p, bufsz - p,
 655		"\tStatistics have been cleared\n");
 656	p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
 657		(flag & UCODE_STATISTICS_FREQUENCY_MSK)
 658		? "2.4 GHz" : "5.2 GHz");
 659	p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
 660		(flag & UCODE_STATISTICS_NARROW_BAND_MSK)
 661		 ? "enabled" : "disabled");
 662
 663	return p;
 664}
 665
 666static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
 667					char __user *user_buf,
 668					size_t count, loff_t *ppos)
 669{
 670	struct iwl_priv *priv = file->private_data;
 671	int pos = 0;
 672	char *buf;
 673	int bufsz = sizeof(struct statistics_rx_phy) * 40 +
 674		    sizeof(struct statistics_rx_non_phy) * 40 +
 675		    sizeof(struct statistics_rx_ht_phy) * 40 + 400;
 676	ssize_t ret;
 677	struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
 678	struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
 679	struct statistics_rx_non_phy *general, *accum_general;
 680	struct statistics_rx_non_phy *delta_general, *max_general;
 681	struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
 682
 683	if (!iwl_is_alive(priv))
 684		return -EAGAIN;
 685
 686	buf = kzalloc(bufsz, GFP_KERNEL);
 687	if (!buf)
 688		return -ENOMEM;
 689
 690	/*
 691	 * the statistic information display here is based on
 692	 * the last statistics notification from uCode
 693	 * might not reflect the current uCode activity
 694	 */
 695	spin_lock_bh(&priv->statistics.lock);
 696	ofdm = &priv->statistics.rx_ofdm;
 697	cck = &priv->statistics.rx_cck;
 698	general = &priv->statistics.rx_non_phy;
 699	ht = &priv->statistics.rx_ofdm_ht;
 700	accum_ofdm = &priv->accum_stats.rx_ofdm;
 701	accum_cck = &priv->accum_stats.rx_cck;
 702	accum_general = &priv->accum_stats.rx_non_phy;
 703	accum_ht = &priv->accum_stats.rx_ofdm_ht;
 704	delta_ofdm = &priv->delta_stats.rx_ofdm;
 705	delta_cck = &priv->delta_stats.rx_cck;
 706	delta_general = &priv->delta_stats.rx_non_phy;
 707	delta_ht = &priv->delta_stats.rx_ofdm_ht;
 708	max_ofdm = &priv->max_delta_stats.rx_ofdm;
 709	max_cck = &priv->max_delta_stats.rx_cck;
 710	max_general = &priv->max_delta_stats.rx_non_phy;
 711	max_ht = &priv->max_delta_stats.rx_ofdm_ht;
 712
 713	pos += iwl_statistics_flag(priv, buf, bufsz);
 714	pos += scnprintf(buf + pos, bufsz - pos,
 715			 fmt_header, "Statistics_Rx - OFDM:");
 716	pos += scnprintf(buf + pos, bufsz - pos,
 717			 fmt_table, "ina_cnt:",
 718			 le32_to_cpu(ofdm->ina_cnt),
 719			 accum_ofdm->ina_cnt,
 720			 delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
 721	pos += scnprintf(buf + pos, bufsz - pos,
 722			 fmt_table, "fina_cnt:",
 723			 le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
 724			 delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
 725	pos += scnprintf(buf + pos, bufsz - pos,
 726			 fmt_table, "plcp_err:",
 727			 le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
 728			 delta_ofdm->plcp_err, max_ofdm->plcp_err);
 729	pos += scnprintf(buf + pos, bufsz - pos,
 730			 fmt_table, "crc32_err:",
 731			 le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
 732			 delta_ofdm->crc32_err, max_ofdm->crc32_err);
 733	pos += scnprintf(buf + pos, bufsz - pos,
 734			 fmt_table, "overrun_err:",
 735			 le32_to_cpu(ofdm->overrun_err),
 736			 accum_ofdm->overrun_err, delta_ofdm->overrun_err,
 737			 max_ofdm->overrun_err);
 738	pos += scnprintf(buf + pos, bufsz - pos,
 739			 fmt_table, "early_overrun_err:",
 740			 le32_to_cpu(ofdm->early_overrun_err),
 741			 accum_ofdm->early_overrun_err,
 742			 delta_ofdm->early_overrun_err,
 743			 max_ofdm->early_overrun_err);
 744	pos += scnprintf(buf + pos, bufsz - pos,
 745			 fmt_table, "crc32_good:",
 746			 le32_to_cpu(ofdm->crc32_good),
 747			 accum_ofdm->crc32_good, delta_ofdm->crc32_good,
 748			 max_ofdm->crc32_good);
 749	pos += scnprintf(buf + pos, bufsz - pos,
 750			 fmt_table, "false_alarm_cnt:",
 751			 le32_to_cpu(ofdm->false_alarm_cnt),
 752			 accum_ofdm->false_alarm_cnt,
 753			 delta_ofdm->false_alarm_cnt,
 754			 max_ofdm->false_alarm_cnt);
 755	pos += scnprintf(buf + pos, bufsz - pos,
 756			 fmt_table, "fina_sync_err_cnt:",
 757			 le32_to_cpu(ofdm->fina_sync_err_cnt),
 758			 accum_ofdm->fina_sync_err_cnt,
 759			 delta_ofdm->fina_sync_err_cnt,
 760			 max_ofdm->fina_sync_err_cnt);
 761	pos += scnprintf(buf + pos, bufsz - pos,
 762			 fmt_table, "sfd_timeout:",
 763			 le32_to_cpu(ofdm->sfd_timeout),
 764			 accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
 765			 max_ofdm->sfd_timeout);
 766	pos += scnprintf(buf + pos, bufsz - pos,
 767			 fmt_table, "fina_timeout:",
 768			 le32_to_cpu(ofdm->fina_timeout),
 769			 accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
 770			 max_ofdm->fina_timeout);
 771	pos += scnprintf(buf + pos, bufsz - pos,
 772			 fmt_table, "unresponded_rts:",
 773			 le32_to_cpu(ofdm->unresponded_rts),
 774			 accum_ofdm->unresponded_rts,
 775			 delta_ofdm->unresponded_rts,
 776			 max_ofdm->unresponded_rts);
 777	pos += scnprintf(buf + pos, bufsz - pos,
 778			 fmt_table, "rxe_frame_lmt_ovrun:",
 779			 le32_to_cpu(ofdm->rxe_frame_limit_overrun),
 780			 accum_ofdm->rxe_frame_limit_overrun,
 781			 delta_ofdm->rxe_frame_limit_overrun,
 782			 max_ofdm->rxe_frame_limit_overrun);
 783	pos += scnprintf(buf + pos, bufsz - pos,
 784			 fmt_table, "sent_ack_cnt:",
 785			 le32_to_cpu(ofdm->sent_ack_cnt),
 786			 accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
 787			 max_ofdm->sent_ack_cnt);
 788	pos += scnprintf(buf + pos, bufsz - pos,
 789			 fmt_table, "sent_cts_cnt:",
 790			 le32_to_cpu(ofdm->sent_cts_cnt),
 791			 accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
 792			 max_ofdm->sent_cts_cnt);
 793	pos += scnprintf(buf + pos, bufsz - pos,
 794			 fmt_table, "sent_ba_rsp_cnt:",
 795			 le32_to_cpu(ofdm->sent_ba_rsp_cnt),
 796			 accum_ofdm->sent_ba_rsp_cnt,
 797			 delta_ofdm->sent_ba_rsp_cnt,
 798			 max_ofdm->sent_ba_rsp_cnt);
 799	pos += scnprintf(buf + pos, bufsz - pos,
 800			 fmt_table, "dsp_self_kill:",
 801			 le32_to_cpu(ofdm->dsp_self_kill),
 802			 accum_ofdm->dsp_self_kill,
 803			 delta_ofdm->dsp_self_kill,
 804			 max_ofdm->dsp_self_kill);
 805	pos += scnprintf(buf + pos, bufsz - pos,
 806			 fmt_table, "mh_format_err:",
 807			 le32_to_cpu(ofdm->mh_format_err),
 808			 accum_ofdm->mh_format_err,
 809			 delta_ofdm->mh_format_err,
 810			 max_ofdm->mh_format_err);
 811	pos += scnprintf(buf + pos, bufsz - pos,
 812			 fmt_table, "re_acq_main_rssi_sum:",
 813			 le32_to_cpu(ofdm->re_acq_main_rssi_sum),
 814			 accum_ofdm->re_acq_main_rssi_sum,
 815			 delta_ofdm->re_acq_main_rssi_sum,
 816			 max_ofdm->re_acq_main_rssi_sum);
 817
 818	pos += scnprintf(buf + pos, bufsz - pos,
 819			 fmt_header, "Statistics_Rx - CCK:");
 820	pos += scnprintf(buf + pos, bufsz - pos,
 821			 fmt_table, "ina_cnt:",
 822			 le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
 823			 delta_cck->ina_cnt, max_cck->ina_cnt);
 824	pos += scnprintf(buf + pos, bufsz - pos,
 825			 fmt_table, "fina_cnt:",
 826			 le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
 827			 delta_cck->fina_cnt, max_cck->fina_cnt);
 828	pos += scnprintf(buf + pos, bufsz - pos,
 829			 fmt_table, "plcp_err:",
 830			 le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
 831			 delta_cck->plcp_err, max_cck->plcp_err);
 832	pos += scnprintf(buf + pos, bufsz - pos,
 833			 fmt_table, "crc32_err:",
 834			 le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
 835			 delta_cck->crc32_err, max_cck->crc32_err);
 836	pos += scnprintf(buf + pos, bufsz - pos,
 837			 fmt_table, "overrun_err:",
 838			 le32_to_cpu(cck->overrun_err),
 839			 accum_cck->overrun_err, delta_cck->overrun_err,
 840			 max_cck->overrun_err);
 841	pos += scnprintf(buf + pos, bufsz - pos,
 842			 fmt_table, "early_overrun_err:",
 843			 le32_to_cpu(cck->early_overrun_err),
 844			 accum_cck->early_overrun_err,
 845			 delta_cck->early_overrun_err,
 846			 max_cck->early_overrun_err);
 847	pos += scnprintf(buf + pos, bufsz - pos,
 848			 fmt_table, "crc32_good:",
 849			 le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
 850			 delta_cck->crc32_good, max_cck->crc32_good);
 851	pos += scnprintf(buf + pos, bufsz - pos,
 852			 fmt_table, "false_alarm_cnt:",
 853			 le32_to_cpu(cck->false_alarm_cnt),
 854			 accum_cck->false_alarm_cnt,
 855			 delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
 856	pos += scnprintf(buf + pos, bufsz - pos,
 857			 fmt_table, "fina_sync_err_cnt:",
 858			 le32_to_cpu(cck->fina_sync_err_cnt),
 859			 accum_cck->fina_sync_err_cnt,
 860			 delta_cck->fina_sync_err_cnt,
 861			 max_cck->fina_sync_err_cnt);
 862	pos += scnprintf(buf + pos, bufsz - pos,
 863			 fmt_table, "sfd_timeout:",
 864			 le32_to_cpu(cck->sfd_timeout),
 865			 accum_cck->sfd_timeout, delta_cck->sfd_timeout,
 866			 max_cck->sfd_timeout);
 867	pos += scnprintf(buf + pos, bufsz - pos,
 868			 fmt_table, "fina_timeout:",
 869			 le32_to_cpu(cck->fina_timeout),
 870			 accum_cck->fina_timeout, delta_cck->fina_timeout,
 871			 max_cck->fina_timeout);
 872	pos += scnprintf(buf + pos, bufsz - pos,
 873			 fmt_table, "unresponded_rts:",
 874			 le32_to_cpu(cck->unresponded_rts),
 875			 accum_cck->unresponded_rts, delta_cck->unresponded_rts,
 876			 max_cck->unresponded_rts);
 877	pos += scnprintf(buf + pos, bufsz - pos,
 878			 fmt_table, "rxe_frame_lmt_ovrun:",
 879			 le32_to_cpu(cck->rxe_frame_limit_overrun),
 880			 accum_cck->rxe_frame_limit_overrun,
 881			 delta_cck->rxe_frame_limit_overrun,
 882			 max_cck->rxe_frame_limit_overrun);
 883	pos += scnprintf(buf + pos, bufsz - pos,
 884			 fmt_table, "sent_ack_cnt:",
 885			 le32_to_cpu(cck->sent_ack_cnt),
 886			 accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
 887			 max_cck->sent_ack_cnt);
 888	pos += scnprintf(buf + pos, bufsz - pos,
 889			 fmt_table, "sent_cts_cnt:",
 890			 le32_to_cpu(cck->sent_cts_cnt),
 891			 accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
 892			 max_cck->sent_cts_cnt);
 893	pos += scnprintf(buf + pos, bufsz - pos,
 894			 fmt_table, "sent_ba_rsp_cnt:",
 895			 le32_to_cpu(cck->sent_ba_rsp_cnt),
 896			 accum_cck->sent_ba_rsp_cnt,
 897			 delta_cck->sent_ba_rsp_cnt,
 898			 max_cck->sent_ba_rsp_cnt);
 899	pos += scnprintf(buf + pos, bufsz - pos,
 900			 fmt_table, "dsp_self_kill:",
 901			 le32_to_cpu(cck->dsp_self_kill),
 902			 accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
 903			 max_cck->dsp_self_kill);
 904	pos += scnprintf(buf + pos, bufsz - pos,
 905			 fmt_table, "mh_format_err:",
 906			 le32_to_cpu(cck->mh_format_err),
 907			 accum_cck->mh_format_err, delta_cck->mh_format_err,
 908			 max_cck->mh_format_err);
 909	pos += scnprintf(buf + pos, bufsz - pos,
 910			 fmt_table, "re_acq_main_rssi_sum:",
 911			 le32_to_cpu(cck->re_acq_main_rssi_sum),
 912			 accum_cck->re_acq_main_rssi_sum,
 913			 delta_cck->re_acq_main_rssi_sum,
 914			 max_cck->re_acq_main_rssi_sum);
 915
 916	pos += scnprintf(buf + pos, bufsz - pos,
 917			 fmt_header, "Statistics_Rx - GENERAL:");
 918	pos += scnprintf(buf + pos, bufsz - pos,
 919			 fmt_table, "bogus_cts:",
 920			 le32_to_cpu(general->bogus_cts),
 921			 accum_general->bogus_cts, delta_general->bogus_cts,
 922			 max_general->bogus_cts);
 923	pos += scnprintf(buf + pos, bufsz - pos,
 924			 fmt_table, "bogus_ack:",
 925			 le32_to_cpu(general->bogus_ack),
 926			 accum_general->bogus_ack, delta_general->bogus_ack,
 927			 max_general->bogus_ack);
 928	pos += scnprintf(buf + pos, bufsz - pos,
 929			 fmt_table, "non_bssid_frames:",
 930			 le32_to_cpu(general->non_bssid_frames),
 931			 accum_general->non_bssid_frames,
 932			 delta_general->non_bssid_frames,
 933			 max_general->non_bssid_frames);
 934	pos += scnprintf(buf + pos, bufsz - pos,
 935			 fmt_table, "filtered_frames:",
 936			 le32_to_cpu(general->filtered_frames),
 937			 accum_general->filtered_frames,
 938			 delta_general->filtered_frames,
 939			 max_general->filtered_frames);
 940	pos += scnprintf(buf + pos, bufsz - pos,
 941			 fmt_table, "non_channel_beacons:",
 942			 le32_to_cpu(general->non_channel_beacons),
 943			 accum_general->non_channel_beacons,
 944			 delta_general->non_channel_beacons,
 945			 max_general->non_channel_beacons);
 946	pos += scnprintf(buf + pos, bufsz - pos,
 947			 fmt_table, "channel_beacons:",
 948			 le32_to_cpu(general->channel_beacons),
 949			 accum_general->channel_beacons,
 950			 delta_general->channel_beacons,
 951			 max_general->channel_beacons);
 952	pos += scnprintf(buf + pos, bufsz - pos,
 953			 fmt_table, "num_missed_bcon:",
 954			 le32_to_cpu(general->num_missed_bcon),
 955			 accum_general->num_missed_bcon,
 956			 delta_general->num_missed_bcon,
 957			 max_general->num_missed_bcon);
 958	pos += scnprintf(buf + pos, bufsz - pos,
 959			 fmt_table, "adc_rx_saturation_time:",
 960			 le32_to_cpu(general->adc_rx_saturation_time),
 961			 accum_general->adc_rx_saturation_time,
 962			 delta_general->adc_rx_saturation_time,
 963			 max_general->adc_rx_saturation_time);
 964	pos += scnprintf(buf + pos, bufsz - pos,
 965			 fmt_table, "ina_detect_search_tm:",
 966			 le32_to_cpu(general->ina_detection_search_time),
 967			 accum_general->ina_detection_search_time,
 968			 delta_general->ina_detection_search_time,
 969			 max_general->ina_detection_search_time);
 970	pos += scnprintf(buf + pos, bufsz - pos,
 971			 fmt_table, "beacon_silence_rssi_a:",
 972			 le32_to_cpu(general->beacon_silence_rssi_a),
 973			 accum_general->beacon_silence_rssi_a,
 974			 delta_general->beacon_silence_rssi_a,
 975			 max_general->beacon_silence_rssi_a);
 976	pos += scnprintf(buf + pos, bufsz - pos,
 977			 fmt_table, "beacon_silence_rssi_b:",
 978			 le32_to_cpu(general->beacon_silence_rssi_b),
 979			 accum_general->beacon_silence_rssi_b,
 980			 delta_general->beacon_silence_rssi_b,
 981			 max_general->beacon_silence_rssi_b);
 982	pos += scnprintf(buf + pos, bufsz - pos,
 983			 fmt_table, "beacon_silence_rssi_c:",
 984			 le32_to_cpu(general->beacon_silence_rssi_c),
 985			 accum_general->beacon_silence_rssi_c,
 986			 delta_general->beacon_silence_rssi_c,
 987			 max_general->beacon_silence_rssi_c);
 988	pos += scnprintf(buf + pos, bufsz - pos,
 989			 fmt_table, "interference_data_flag:",
 990			 le32_to_cpu(general->interference_data_flag),
 991			 accum_general->interference_data_flag,
 992			 delta_general->interference_data_flag,
 993			 max_general->interference_data_flag);
 994	pos += scnprintf(buf + pos, bufsz - pos,
 995			 fmt_table, "channel_load:",
 996			 le32_to_cpu(general->channel_load),
 997			 accum_general->channel_load,
 998			 delta_general->channel_load,
 999			 max_general->channel_load);
1000	pos += scnprintf(buf + pos, bufsz - pos,
1001			 fmt_table, "dsp_false_alarms:",
1002			 le32_to_cpu(general->dsp_false_alarms),
1003			 accum_general->dsp_false_alarms,
1004			 delta_general->dsp_false_alarms,
1005			 max_general->dsp_false_alarms);
1006	pos += scnprintf(buf + pos, bufsz - pos,
1007			 fmt_table, "beacon_rssi_a:",
1008			 le32_to_cpu(general->beacon_rssi_a),
1009			 accum_general->beacon_rssi_a,
1010			 delta_general->beacon_rssi_a,
1011			 max_general->beacon_rssi_a);
1012	pos += scnprintf(buf + pos, bufsz - pos,
1013			 fmt_table, "beacon_rssi_b:",
1014			 le32_to_cpu(general->beacon_rssi_b),
1015			 accum_general->beacon_rssi_b,
1016			 delta_general->beacon_rssi_b,
1017			 max_general->beacon_rssi_b);
1018	pos += scnprintf(buf + pos, bufsz - pos,
1019			 fmt_table, "beacon_rssi_c:",
1020			 le32_to_cpu(general->beacon_rssi_c),
1021			 accum_general->beacon_rssi_c,
1022			 delta_general->beacon_rssi_c,
1023			 max_general->beacon_rssi_c);
1024	pos += scnprintf(buf + pos, bufsz - pos,
1025			 fmt_table, "beacon_energy_a:",
1026			 le32_to_cpu(general->beacon_energy_a),
1027			 accum_general->beacon_energy_a,
1028			 delta_general->beacon_energy_a,
1029			 max_general->beacon_energy_a);
1030	pos += scnprintf(buf + pos, bufsz - pos,
1031			 fmt_table, "beacon_energy_b:",
1032			 le32_to_cpu(general->beacon_energy_b),
1033			 accum_general->beacon_energy_b,
1034			 delta_general->beacon_energy_b,
1035			 max_general->beacon_energy_b);
1036	pos += scnprintf(buf + pos, bufsz - pos,
1037			 fmt_table, "beacon_energy_c:",
1038			 le32_to_cpu(general->beacon_energy_c),
1039			 accum_general->beacon_energy_c,
1040			 delta_general->beacon_energy_c,
1041			 max_general->beacon_energy_c);
1042
1043	pos += scnprintf(buf + pos, bufsz - pos,
1044			 fmt_header, "Statistics_Rx - OFDM_HT:");
1045	pos += scnprintf(buf + pos, bufsz - pos,
1046			 fmt_table, "plcp_err:",
1047			 le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1048			 delta_ht->plcp_err, max_ht->plcp_err);
1049	pos += scnprintf(buf + pos, bufsz - pos,
1050			 fmt_table, "overrun_err:",
1051			 le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1052			 delta_ht->overrun_err, max_ht->overrun_err);
1053	pos += scnprintf(buf + pos, bufsz - pos,
1054			 fmt_table, "early_overrun_err:",
1055			 le32_to_cpu(ht->early_overrun_err),
1056			 accum_ht->early_overrun_err,
1057			 delta_ht->early_overrun_err,
1058			 max_ht->early_overrun_err);
1059	pos += scnprintf(buf + pos, bufsz - pos,
1060			 fmt_table, "crc32_good:",
1061			 le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1062			 delta_ht->crc32_good, max_ht->crc32_good);
1063	pos += scnprintf(buf + pos, bufsz - pos,
1064			 fmt_table, "crc32_err:",
1065			 le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1066			 delta_ht->crc32_err, max_ht->crc32_err);
1067	pos += scnprintf(buf + pos, bufsz - pos,
1068			 fmt_table, "mh_format_err:",
1069			 le32_to_cpu(ht->mh_format_err),
1070			 accum_ht->mh_format_err,
1071			 delta_ht->mh_format_err, max_ht->mh_format_err);
1072	pos += scnprintf(buf + pos, bufsz - pos,
1073			 fmt_table, "agg_crc32_good:",
1074			 le32_to_cpu(ht->agg_crc32_good),
1075			 accum_ht->agg_crc32_good,
1076			 delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1077	pos += scnprintf(buf + pos, bufsz - pos,
1078			 fmt_table, "agg_mpdu_cnt:",
1079			 le32_to_cpu(ht->agg_mpdu_cnt),
1080			 accum_ht->agg_mpdu_cnt,
1081			 delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1082	pos += scnprintf(buf + pos, bufsz - pos,
1083			 fmt_table, "agg_cnt:",
1084			 le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1085			 delta_ht->agg_cnt, max_ht->agg_cnt);
1086	pos += scnprintf(buf + pos, bufsz - pos,
1087			 fmt_table, "unsupport_mcs:",
1088			 le32_to_cpu(ht->unsupport_mcs),
1089			 accum_ht->unsupport_mcs,
1090			 delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1091
1092	spin_unlock_bh(&priv->statistics.lock);
1093
1094	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1095	kfree(buf);
1096	return ret;
1097}
1098
1099static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1100					char __user *user_buf,
1101					size_t count, loff_t *ppos)
1102{
1103	struct iwl_priv *priv = file->private_data;
1104	int pos = 0;
1105	char *buf;
1106	int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1107	ssize_t ret;
1108	struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1109
1110	if (!iwl_is_alive(priv))
1111		return -EAGAIN;
1112
1113	buf = kzalloc(bufsz, GFP_KERNEL);
1114	if (!buf)
1115		return -ENOMEM;
1116
1117	/* the statistic information display here is based on
1118	 * the last statistics notification from uCode
1119	 * might not reflect the current uCode activity
1120	 */
1121	spin_lock_bh(&priv->statistics.lock);
1122
1123	tx = &priv->statistics.tx;
1124	accum_tx = &priv->accum_stats.tx;
1125	delta_tx = &priv->delta_stats.tx;
1126	max_tx = &priv->max_delta_stats.tx;
1127
1128	pos += iwl_statistics_flag(priv, buf, bufsz);
1129	pos += scnprintf(buf + pos, bufsz - pos,
1130			 fmt_header, "Statistics_Tx:");
1131	pos += scnprintf(buf + pos, bufsz - pos,
1132			 fmt_table, "preamble:",
1133			 le32_to_cpu(tx->preamble_cnt),
1134			 accum_tx->preamble_cnt,
1135			 delta_tx->preamble_cnt, max_tx->preamble_cnt);
1136	pos += scnprintf(buf + pos, bufsz - pos,
1137			 fmt_table, "rx_detected_cnt:",
1138			 le32_to_cpu(tx->rx_detected_cnt),
1139			 accum_tx->rx_detected_cnt,
1140			 delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1141	pos += scnprintf(buf + pos, bufsz - pos,
1142			 fmt_table, "bt_prio_defer_cnt:",
1143			 le32_to_cpu(tx->bt_prio_defer_cnt),
1144			 accum_tx->bt_prio_defer_cnt,
1145			 delta_tx->bt_prio_defer_cnt,
1146			 max_tx->bt_prio_defer_cnt);
1147	pos += scnprintf(buf + pos, bufsz - pos,
1148			 fmt_table, "bt_prio_kill_cnt:",
1149			 le32_to_cpu(tx->bt_prio_kill_cnt),
1150			 accum_tx->bt_prio_kill_cnt,
1151			 delta_tx->bt_prio_kill_cnt,
1152			 max_tx->bt_prio_kill_cnt);
1153	pos += scnprintf(buf + pos, bufsz - pos,
1154			 fmt_table, "few_bytes_cnt:",
1155			 le32_to_cpu(tx->few_bytes_cnt),
1156			 accum_tx->few_bytes_cnt,
1157			 delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1158	pos += scnprintf(buf + pos, bufsz - pos,
1159			 fmt_table, "cts_timeout:",
1160			 le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1161			 delta_tx->cts_timeout, max_tx->cts_timeout);
1162	pos += scnprintf(buf + pos, bufsz - pos,
1163			 fmt_table, "ack_timeout:",
1164			 le32_to_cpu(tx->ack_timeout),
1165			 accum_tx->ack_timeout,
1166			 delta_tx->ack_timeout, max_tx->ack_timeout);
1167	pos += scnprintf(buf + pos, bufsz - pos,
1168			 fmt_table, "expected_ack_cnt:",
1169			 le32_to_cpu(tx->expected_ack_cnt),
1170			 accum_tx->expected_ack_cnt,
1171			 delta_tx->expected_ack_cnt,
1172			 max_tx->expected_ack_cnt);
1173	pos += scnprintf(buf + pos, bufsz - pos,
1174			 fmt_table, "actual_ack_cnt:",
1175			 le32_to_cpu(tx->actual_ack_cnt),
1176			 accum_tx->actual_ack_cnt,
1177			 delta_tx->actual_ack_cnt,
1178			 max_tx->actual_ack_cnt);
1179	pos += scnprintf(buf + pos, bufsz - pos,
1180			 fmt_table, "dump_msdu_cnt:",
1181			 le32_to_cpu(tx->dump_msdu_cnt),
1182			 accum_tx->dump_msdu_cnt,
1183			 delta_tx->dump_msdu_cnt,
1184			 max_tx->dump_msdu_cnt);
1185	pos += scnprintf(buf + pos, bufsz - pos,
1186			 fmt_table, "abort_nxt_frame_mismatch:",
1187			 le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1188			 accum_tx->burst_abort_next_frame_mismatch_cnt,
1189			 delta_tx->burst_abort_next_frame_mismatch_cnt,
1190			 max_tx->burst_abort_next_frame_mismatch_cnt);
1191	pos += scnprintf(buf + pos, bufsz - pos,
1192			 fmt_table, "abort_missing_nxt_frame:",
1193			 le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1194			 accum_tx->burst_abort_missing_next_frame_cnt,
1195			 delta_tx->burst_abort_missing_next_frame_cnt,
1196			 max_tx->burst_abort_missing_next_frame_cnt);
1197	pos += scnprintf(buf + pos, bufsz - pos,
1198			 fmt_table, "cts_timeout_collision:",
1199			 le32_to_cpu(tx->cts_timeout_collision),
1200			 accum_tx->cts_timeout_collision,
1201			 delta_tx->cts_timeout_collision,
1202			 max_tx->cts_timeout_collision);
1203	pos += scnprintf(buf + pos, bufsz - pos,
1204			 fmt_table, "ack_ba_timeout_collision:",
1205			 le32_to_cpu(tx->ack_or_ba_timeout_collision),
1206			 accum_tx->ack_or_ba_timeout_collision,
1207			 delta_tx->ack_or_ba_timeout_collision,
1208			 max_tx->ack_or_ba_timeout_collision);
1209	pos += scnprintf(buf + pos, bufsz - pos,
1210			 fmt_table, "agg ba_timeout:",
1211			 le32_to_cpu(tx->agg.ba_timeout),
1212			 accum_tx->agg.ba_timeout,
1213			 delta_tx->agg.ba_timeout,
1214			 max_tx->agg.ba_timeout);
1215	pos += scnprintf(buf + pos, bufsz - pos,
1216			 fmt_table, "agg ba_resched_frames:",
1217			 le32_to_cpu(tx->agg.ba_reschedule_frames),
1218			 accum_tx->agg.ba_reschedule_frames,
1219			 delta_tx->agg.ba_reschedule_frames,
1220			 max_tx->agg.ba_reschedule_frames);
1221	pos += scnprintf(buf + pos, bufsz - pos,
1222			 fmt_table, "agg scd_query_agg_frame:",
1223			 le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1224			 accum_tx->agg.scd_query_agg_frame_cnt,
1225			 delta_tx->agg.scd_query_agg_frame_cnt,
1226			 max_tx->agg.scd_query_agg_frame_cnt);
1227	pos += scnprintf(buf + pos, bufsz - pos,
1228			 fmt_table, "agg scd_query_no_agg:",
1229			 le32_to_cpu(tx->agg.scd_query_no_agg),
1230			 accum_tx->agg.scd_query_no_agg,
1231			 delta_tx->agg.scd_query_no_agg,
1232			 max_tx->agg.scd_query_no_agg);
1233	pos += scnprintf(buf + pos, bufsz - pos,
1234			 fmt_table, "agg scd_query_agg:",
1235			 le32_to_cpu(tx->agg.scd_query_agg),
1236			 accum_tx->agg.scd_query_agg,
1237			 delta_tx->agg.scd_query_agg,
1238			 max_tx->agg.scd_query_agg);
1239	pos += scnprintf(buf + pos, bufsz - pos,
1240			 fmt_table, "agg scd_query_mismatch:",
1241			 le32_to_cpu(tx->agg.scd_query_mismatch),
1242			 accum_tx->agg.scd_query_mismatch,
1243			 delta_tx->agg.scd_query_mismatch,
1244			 max_tx->agg.scd_query_mismatch);
1245	pos += scnprintf(buf + pos, bufsz - pos,
1246			 fmt_table, "agg frame_not_ready:",
1247			 le32_to_cpu(tx->agg.frame_not_ready),
1248			 accum_tx->agg.frame_not_ready,
1249			 delta_tx->agg.frame_not_ready,
1250			 max_tx->agg.frame_not_ready);
1251	pos += scnprintf(buf + pos, bufsz - pos,
1252			 fmt_table, "agg underrun:",
1253			 le32_to_cpu(tx->agg.underrun),
1254			 accum_tx->agg.underrun,
1255			 delta_tx->agg.underrun, max_tx->agg.underrun);
1256	pos += scnprintf(buf + pos, bufsz - pos,
1257			 fmt_table, "agg bt_prio_kill:",
1258			 le32_to_cpu(tx->agg.bt_prio_kill),
1259			 accum_tx->agg.bt_prio_kill,
1260			 delta_tx->agg.bt_prio_kill,
1261			 max_tx->agg.bt_prio_kill);
1262	pos += scnprintf(buf + pos, bufsz - pos,
1263			 fmt_table, "agg rx_ba_rsp_cnt:",
1264			 le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1265			 accum_tx->agg.rx_ba_rsp_cnt,
1266			 delta_tx->agg.rx_ba_rsp_cnt,
1267			 max_tx->agg.rx_ba_rsp_cnt);
1268
1269	if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
1270		pos += scnprintf(buf + pos, bufsz - pos,
1271			"tx power: (1/2 dB step)\n");
1272		if ((priv->nvm_data->valid_tx_ant & ANT_A) &&
1273		    tx->tx_power.ant_a)
1274			pos += scnprintf(buf + pos, bufsz - pos,
1275					fmt_hex, "antenna A:",
1276					tx->tx_power.ant_a);
1277		if ((priv->nvm_data->valid_tx_ant & ANT_B) &&
1278		    tx->tx_power.ant_b)
1279			pos += scnprintf(buf + pos, bufsz - pos,
1280					fmt_hex, "antenna B:",
1281					tx->tx_power.ant_b);
1282		if ((priv->nvm_data->valid_tx_ant & ANT_C) &&
1283		    tx->tx_power.ant_c)
1284			pos += scnprintf(buf + pos, bufsz - pos,
1285					fmt_hex, "antenna C:",
1286					tx->tx_power.ant_c);
1287	}
1288
1289	spin_unlock_bh(&priv->statistics.lock);
1290
1291	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1292	kfree(buf);
1293	return ret;
1294}
1295
1296static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1297					char __user *user_buf,
1298					size_t count, loff_t *ppos)
1299{
1300	struct iwl_priv *priv = file->private_data;
1301	int pos = 0;
1302	char *buf;
1303	int bufsz = sizeof(struct statistics_general) * 10 + 300;
1304	ssize_t ret;
1305	struct statistics_general_common *general, *accum_general;
1306	struct statistics_general_common *delta_general, *max_general;
1307	struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1308	struct statistics_div *div, *accum_div, *delta_div, *max_div;
1309
1310	if (!iwl_is_alive(priv))
1311		return -EAGAIN;
1312
1313	buf = kzalloc(bufsz, GFP_KERNEL);
1314	if (!buf)
1315		return -ENOMEM;
1316
1317	/* the statistic information display here is based on
1318	 * the last statistics notification from uCode
1319	 * might not reflect the current uCode activity
1320	 */
1321
1322	spin_lock_bh(&priv->statistics.lock);
1323
1324	general = &priv->statistics.common;
1325	dbg = &priv->statistics.common.dbg;
1326	div = &priv->statistics.common.div;
1327	accum_general = &priv->accum_stats.common;
1328	accum_dbg = &priv->accum_stats.common.dbg;
1329	accum_div = &priv->accum_stats.common.div;
1330	delta_general = &priv->delta_stats.common;
1331	max_general = &priv->max_delta_stats.common;
1332	delta_dbg = &priv->delta_stats.common.dbg;
1333	max_dbg = &priv->max_delta_stats.common.dbg;
1334	delta_div = &priv->delta_stats.common.div;
1335	max_div = &priv->max_delta_stats.common.div;
1336
1337	pos += iwl_statistics_flag(priv, buf, bufsz);
1338	pos += scnprintf(buf + pos, bufsz - pos,
1339			 fmt_header, "Statistics_General:");
1340	pos += scnprintf(buf + pos, bufsz - pos,
1341			 fmt_value, "temperature:",
1342			 le32_to_cpu(general->temperature));
1343	pos += scnprintf(buf + pos, bufsz - pos,
1344			 fmt_value, "temperature_m:",
1345			 le32_to_cpu(general->temperature_m));
1346	pos += scnprintf(buf + pos, bufsz - pos,
1347			 fmt_value, "ttl_timestamp:",
1348			 le32_to_cpu(general->ttl_timestamp));
1349	pos += scnprintf(buf + pos, bufsz - pos,
1350			 fmt_table, "burst_check:",
1351			 le32_to_cpu(dbg->burst_check),
1352			 accum_dbg->burst_check,
1353			 delta_dbg->burst_check, max_dbg->burst_check);
1354	pos += scnprintf(buf + pos, bufsz - pos,
1355			 fmt_table, "burst_count:",
1356			 le32_to_cpu(dbg->burst_count),
1357			 accum_dbg->burst_count,
1358			 delta_dbg->burst_count, max_dbg->burst_count);
1359	pos += scnprintf(buf + pos, bufsz - pos,
1360			 fmt_table, "wait_for_silence_timeout_count:",
1361			 le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
1362			 accum_dbg->wait_for_silence_timeout_cnt,
1363			 delta_dbg->wait_for_silence_timeout_cnt,
1364			 max_dbg->wait_for_silence_timeout_cnt);
1365	pos += scnprintf(buf + pos, bufsz - pos,
1366			 fmt_table, "sleep_time:",
1367			 le32_to_cpu(general->sleep_time),
1368			 accum_general->sleep_time,
1369			 delta_general->sleep_time, max_general->sleep_time);
1370	pos += scnprintf(buf + pos, bufsz - pos,
1371			 fmt_table, "slots_out:",
1372			 le32_to_cpu(general->slots_out),
1373			 accum_general->slots_out,
1374			 delta_general->slots_out, max_general->slots_out);
1375	pos += scnprintf(buf + pos, bufsz - pos,
1376			 fmt_table, "slots_idle:",
1377			 le32_to_cpu(general->slots_idle),
1378			 accum_general->slots_idle,
1379			 delta_general->slots_idle, max_general->slots_idle);
1380	pos += scnprintf(buf + pos, bufsz - pos,
1381			 fmt_table, "tx_on_a:",
1382			 le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1383			 delta_div->tx_on_a, max_div->tx_on_a);
1384	pos += scnprintf(buf + pos, bufsz - pos,
1385			 fmt_table, "tx_on_b:",
1386			 le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1387			 delta_div->tx_on_b, max_div->tx_on_b);
1388	pos += scnprintf(buf + pos, bufsz - pos,
1389			 fmt_table, "exec_time:",
1390			 le32_to_cpu(div->exec_time), accum_div->exec_time,
1391			 delta_div->exec_time, max_div->exec_time);
1392	pos += scnprintf(buf + pos, bufsz - pos,
1393			 fmt_table, "probe_time:",
1394			 le32_to_cpu(div->probe_time), accum_div->probe_time,
1395			 delta_div->probe_time, max_div->probe_time);
1396	pos += scnprintf(buf + pos, bufsz - pos,
1397			 fmt_table, "rx_enable_counter:",
1398			 le32_to_cpu(general->rx_enable_counter),
1399			 accum_general->rx_enable_counter,
1400			 delta_general->rx_enable_counter,
1401			 max_general->rx_enable_counter);
1402	pos += scnprintf(buf + pos, bufsz - pos,
1403			 fmt_table, "num_of_sos_states:",
1404			 le32_to_cpu(general->num_of_sos_states),
1405			 accum_general->num_of_sos_states,
1406			 delta_general->num_of_sos_states,
1407			 max_general->num_of_sos_states);
1408
1409	spin_unlock_bh(&priv->statistics.lock);
1410
1411	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1412	kfree(buf);
1413	return ret;
1414}
1415
1416static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1417					char __user *user_buf,
1418					size_t count, loff_t *ppos)
1419{
1420	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1421	int pos = 0;
1422	char *buf;
1423	int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
1424	ssize_t ret;
1425	struct statistics_bt_activity *bt, *accum_bt;
1426
1427	if (!iwl_is_alive(priv))
1428		return -EAGAIN;
1429
1430	if (!priv->bt_enable_flag)
1431		return -EINVAL;
1432
1433	/* make request to uCode to retrieve statistics information */
1434	mutex_lock(&priv->mutex);
1435	ret = iwl_send_statistics_request(priv, 0, false);
1436	mutex_unlock(&priv->mutex);
1437
1438	if (ret)
1439		return -EAGAIN;
1440	buf = kzalloc(bufsz, GFP_KERNEL);
1441	if (!buf)
1442		return -ENOMEM;
1443
1444	/*
1445	 * the statistic information display here is based on
1446	 * the last statistics notification from uCode
1447	 * might not reflect the current uCode activity
1448	 */
1449
1450	spin_lock_bh(&priv->statistics.lock);
1451
1452	bt = &priv->statistics.bt_activity;
1453	accum_bt = &priv->accum_stats.bt_activity;
1454
1455	pos += iwl_statistics_flag(priv, buf, bufsz);
1456	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
1457	pos += scnprintf(buf + pos, bufsz - pos,
1458			"\t\t\tcurrent\t\t\taccumulative\n");
1459	pos += scnprintf(buf + pos, bufsz - pos,
1460			 "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1461			 le32_to_cpu(bt->hi_priority_tx_req_cnt),
1462			 accum_bt->hi_priority_tx_req_cnt);
1463	pos += scnprintf(buf + pos, bufsz - pos,
1464			 "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1465			 le32_to_cpu(bt->hi_priority_tx_denied_cnt),
1466			 accum_bt->hi_priority_tx_denied_cnt);
1467	pos += scnprintf(buf + pos, bufsz - pos,
1468			 "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1469			 le32_to_cpu(bt->lo_priority_tx_req_cnt),
1470			 accum_bt->lo_priority_tx_req_cnt);
1471	pos += scnprintf(buf + pos, bufsz - pos,
1472			 "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1473			 le32_to_cpu(bt->lo_priority_tx_denied_cnt),
1474			 accum_bt->lo_priority_tx_denied_cnt);
1475	pos += scnprintf(buf + pos, bufsz - pos,
1476			 "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1477			 le32_to_cpu(bt->hi_priority_rx_req_cnt),
1478			 accum_bt->hi_priority_rx_req_cnt);
1479	pos += scnprintf(buf + pos, bufsz - pos,
1480			 "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1481			 le32_to_cpu(bt->hi_priority_rx_denied_cnt),
1482			 accum_bt->hi_priority_rx_denied_cnt);
1483	pos += scnprintf(buf + pos, bufsz - pos,
1484			 "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1485			 le32_to_cpu(bt->lo_priority_rx_req_cnt),
1486			 accum_bt->lo_priority_rx_req_cnt);
1487	pos += scnprintf(buf + pos, bufsz - pos,
1488			 "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1489			 le32_to_cpu(bt->lo_priority_rx_denied_cnt),
1490			 accum_bt->lo_priority_rx_denied_cnt);
1491
1492	pos += scnprintf(buf + pos, bufsz - pos,
1493			 "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
1494			 le32_to_cpu(priv->statistics.num_bt_kills),
1495			 priv->statistics.accum_num_bt_kills);
1496
1497	spin_unlock_bh(&priv->statistics.lock);
1498
1499	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1500	kfree(buf);
1501	return ret;
1502}
1503
1504static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1505					char __user *user_buf,
1506					size_t count, loff_t *ppos)
1507{
1508	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1509	int pos = 0;
1510	char *buf;
1511	int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
1512		(sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
1513	ssize_t ret;
1514
1515	if (!iwl_is_alive(priv))
1516		return -EAGAIN;
1517
1518	buf = kzalloc(bufsz, GFP_KERNEL);
1519	if (!buf)
1520		return -ENOMEM;
1521
1522	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
1523	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
1524			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1525			 priv->reply_tx_stats.pp_delay);
1526	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1527			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1528			 priv->reply_tx_stats.pp_few_bytes);
1529	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1530			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1531			 priv->reply_tx_stats.pp_bt_prio);
1532	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1533			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1534			 priv->reply_tx_stats.pp_quiet_period);
1535	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1536			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1537			 priv->reply_tx_stats.pp_calc_ttak);
1538	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1539			 iwl_get_tx_fail_reason(
1540				TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1541			 priv->reply_tx_stats.int_crossed_retry);
1542	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1543			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1544			 priv->reply_tx_stats.short_limit);
1545	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1546			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1547			 priv->reply_tx_stats.long_limit);
1548	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1549			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1550			 priv->reply_tx_stats.fifo_underrun);
1551	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1552			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1553			 priv->reply_tx_stats.drain_flow);
1554	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1555			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1556			 priv->reply_tx_stats.rfkill_flush);
1557	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1558			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1559			 priv->reply_tx_stats.life_expire);
1560	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1561			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1562			 priv->reply_tx_stats.dest_ps);
1563	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1564			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1565			 priv->reply_tx_stats.host_abort);
1566	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1567			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1568			 priv->reply_tx_stats.pp_delay);
1569	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1570			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1571			 priv->reply_tx_stats.sta_invalid);
1572	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1573			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1574			 priv->reply_tx_stats.frag_drop);
1575	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1576			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1577			 priv->reply_tx_stats.tid_disable);
1578	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1579			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1580			 priv->reply_tx_stats.fifo_flush);
1581	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1582			 iwl_get_tx_fail_reason(
1583				TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1584			 priv->reply_tx_stats.insuff_cf_poll);
1585	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1586			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1587			 priv->reply_tx_stats.fail_hw_drop);
1588	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1589			 iwl_get_tx_fail_reason(
1590				TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1591			 priv->reply_tx_stats.sta_color_mismatch);
1592	pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1593			 priv->reply_tx_stats.unknown);
1594
1595	pos += scnprintf(buf + pos, bufsz - pos,
1596			 "\nStatistics_Agg_TX_Error:\n");
1597
1598	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1599			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1600			 priv->reply_agg_tx_stats.underrun);
1601	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1602			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1603			 priv->reply_agg_tx_stats.bt_prio);
1604	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1605			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1606			 priv->reply_agg_tx_stats.few_bytes);
1607	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1608			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
1609			 priv->reply_agg_tx_stats.abort);
1610	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1611			 iwl_get_agg_tx_fail_reason(
1612				AGG_TX_STATE_LAST_SENT_TTL_MSK),
1613			 priv->reply_agg_tx_stats.last_sent_ttl);
1614	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1615			 iwl_get_agg_tx_fail_reason(
1616				AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK),
1617			 priv->reply_agg_tx_stats.last_sent_try);
1618	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1619			 iwl_get_agg_tx_fail_reason(
1620				AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
1621			 priv->reply_agg_tx_stats.last_sent_bt_kill);
1622	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1623			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
1624			 priv->reply_agg_tx_stats.scd_query);
1625	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1626			 iwl_get_agg_tx_fail_reason(
1627				AGG_TX_STATE_TEST_BAD_CRC32_MSK),
1628			 priv->reply_agg_tx_stats.bad_crc32);
1629	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1630			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
1631			 priv->reply_agg_tx_stats.response);
1632	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1633			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
1634			 priv->reply_agg_tx_stats.dump_tx);
1635	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1636			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
1637			 priv->reply_agg_tx_stats.delay_tx);
1638	pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1639			 priv->reply_agg_tx_stats.unknown);
1640
1641	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1642	kfree(buf);
1643	return ret;
1644}
1645
1646static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1647					char __user *user_buf,
1648					size_t count, loff_t *ppos) {
1649
1650	struct iwl_priv *priv = file->private_data;
1651	int pos = 0;
1652	int cnt = 0;
1653	char *buf;
1654	int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1655	ssize_t ret;
1656	struct iwl_sensitivity_data *data;
1657
1658	data = &priv->sensitivity_data;
1659	buf = kzalloc(bufsz, GFP_KERNEL);
1660	if (!buf)
1661		return -ENOMEM;
1662
1663	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1664			data->auto_corr_ofdm);
1665	pos += scnprintf(buf + pos, bufsz - pos,
1666			"auto_corr_ofdm_mrc:\t\t %u\n",
1667			data->auto_corr_ofdm_mrc);
1668	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1669			data->auto_corr_ofdm_x1);
1670	pos += scnprintf(buf + pos, bufsz - pos,
1671			"auto_corr_ofdm_mrc_x1:\t\t %u\n",
1672			data->auto_corr_ofdm_mrc_x1);
1673	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1674			data->auto_corr_cck);
1675	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1676			data->auto_corr_cck_mrc);
1677	pos += scnprintf(buf + pos, bufsz - pos,
1678			"last_bad_plcp_cnt_ofdm:\t\t %u\n",
1679			data->last_bad_plcp_cnt_ofdm);
1680	pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1681			data->last_fa_cnt_ofdm);
1682	pos += scnprintf(buf + pos, bufsz - pos,
1683			"last_bad_plcp_cnt_cck:\t\t %u\n",
1684			data->last_bad_plcp_cnt_cck);
1685	pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1686			data->last_fa_cnt_cck);
1687	pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1688			data->nrg_curr_state);
1689	pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1690			data->nrg_prev_state);
1691	pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1692	for (cnt = 0; cnt < 10; cnt++) {
1693		pos += scnprintf(buf + pos, bufsz - pos, " %u",
1694				data->nrg_value[cnt]);
1695	}
1696	pos += scnprintf(buf + pos, bufsz - pos, "\n");
1697	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1698	for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1699		pos += scnprintf(buf + pos, bufsz - pos, " %u",
1700				data->nrg_silence_rssi[cnt]);
1701	}
1702	pos += scnprintf(buf + pos, bufsz - pos, "\n");
1703	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1704			data->nrg_silence_ref);
1705	pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1706			data->nrg_energy_idx);
1707	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1708			data->nrg_silence_idx);
1709	pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1710			data->nrg_th_cck);
1711	pos += scnprintf(buf + pos, bufsz - pos,
1712			"nrg_auto_corr_silence_diff:\t %u\n",
1713			data->nrg_auto_corr_silence_diff);
1714	pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1715			data->num_in_cck_no_fa);
1716	pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1717			data->nrg_th_ofdm);
1718
1719	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1720	kfree(buf);
1721	return ret;
1722}
1723
1724
1725static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1726					char __user *user_buf,
1727					size_t count, loff_t *ppos) {
1728
1729	struct iwl_priv *priv = file->private_data;
1730	int pos = 0;
1731	int cnt = 0;
1732	char *buf;
1733	int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1734	ssize_t ret;
1735	struct iwl_chain_noise_data *data;
1736
1737	data = &priv->chain_noise_data;
1738	buf = kzalloc(bufsz, GFP_KERNEL);
1739	if (!buf)
1740		return -ENOMEM;
1741
1742	pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1743			data->active_chains);
1744	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1745			data->chain_noise_a);
1746	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1747			data->chain_noise_b);
1748	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1749			data->chain_noise_c);
1750	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1751			data->chain_signal_a);
1752	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1753			data->chain_signal_b);
1754	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1755			data->chain_signal_c);
1756	pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1757			data->beacon_count);
1758
1759	pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1760	for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1761		pos += scnprintf(buf + pos, bufsz - pos, " %u",
1762				data->disconn_array[cnt]);
1763	}
1764	pos += scnprintf(buf + pos, bufsz - pos, "\n");
1765	pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1766	for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1767		pos += scnprintf(buf + pos, bufsz - pos, " %u",
1768				data->delta_gain_code[cnt]);
1769	}
1770	pos += scnprintf(buf + pos, bufsz - pos, "\n");
1771	pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1772			data->radio_write);
1773	pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1774			data->state);
1775
1776	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1777	kfree(buf);
1778	return ret;
1779}
1780
1781static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1782						    char __user *user_buf,
1783						    size_t count, loff_t *ppos)
1784{
1785	struct iwl_priv *priv = file->private_data;
1786	char buf[60];
1787	int pos = 0;
1788	const size_t bufsz = sizeof(buf);
1789	u32 pwrsave_status;
1790
1791	pwrsave_status = iwl_read32(priv->trans, CSR_GP_CNTRL) &
1792			CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1793
1794	pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1795	pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1796		(pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1797		(pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1798		(pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1799		"error");
1800
1801	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1802}
1803
1804static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1805					 const char __user *user_buf,
1806					 size_t count, loff_t *ppos)
1807{
1808	struct iwl_priv *priv = file->private_data;
1809	char buf[8];
1810	int buf_size;
1811	int clear;
1812
1813	memset(buf, 0, sizeof(buf));
1814	buf_size = min(count, sizeof(buf) -  1);
1815	if (copy_from_user(buf, user_buf, buf_size))
1816		return -EFAULT;
1817	if (sscanf(buf, "%d", &clear) != 1)
1818		return -EFAULT;
1819
1820	/* make request to uCode to retrieve statistics information */
1821	mutex_lock(&priv->mutex);
1822	iwl_send_statistics_request(priv, 0, true);
1823	mutex_unlock(&priv->mutex);
1824
1825	return count;
1826}
1827
1828static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1829					char __user *user_buf,
1830					size_t count, loff_t *ppos) {
1831
1832	struct iwl_priv *priv = file->private_data;
1833	int pos = 0;
1834	char buf[128];
1835	const size_t bufsz = sizeof(buf);
1836
1837	pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1838			priv->event_log.ucode_trace ? "On" : "Off");
1839	pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1840			priv->event_log.non_wraps_count);
1841	pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1842			priv->event_log.wraps_once_count);
1843	pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1844			priv->event_log.wraps_more_count);
1845
1846	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1847}
1848
1849static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1850					 const char __user *user_buf,
1851					 size_t count, loff_t *ppos)
1852{
1853	struct iwl_priv *priv = file->private_data;
1854	char buf[8];
1855	int buf_size;
1856	int trace;
1857
1858	memset(buf, 0, sizeof(buf));
1859	buf_size = min(count, sizeof(buf) -  1);
1860	if (copy_from_user(buf, user_buf, buf_size))
1861		return -EFAULT;
1862	if (sscanf(buf, "%d", &trace) != 1)
1863		return -EFAULT;
1864
1865	if (trace) {
1866		priv->event_log.ucode_trace = true;
1867		if (iwl_is_alive(priv)) {
1868			/* start collecting data now */
1869			mod_timer(&priv->ucode_trace, jiffies);
1870		}
1871	} else {
1872		priv->event_log.ucode_trace = false;
1873		del_timer_sync(&priv->ucode_trace);
1874	}
1875
1876	return count;
1877}
1878
1879static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1880					 char __user *user_buf,
1881					 size_t count, loff_t *ppos) {
1882
1883	struct iwl_priv *priv = file->private_data;
1884	int len = 0;
1885	char buf[20];
1886
1887	len = sprintf(buf, "0x%04X\n",
1888		le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1889	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1890}
1891
1892static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1893						char __user *user_buf,
1894						size_t count, loff_t *ppos) {
1895
1896	struct iwl_priv *priv = file->private_data;
1897	int len = 0;
1898	char buf[20];
1899
1900	len = sprintf(buf, "0x%04X\n",
1901		le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1902	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1903}
1904
1905static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1906					char __user *user_buf,
1907					size_t count, loff_t *ppos) {
1908
1909	struct iwl_priv *priv = file->private_data;
1910	int pos = 0;
1911	char buf[12];
1912	const size_t bufsz = sizeof(buf);
1913
1914	pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1915			priv->missed_beacon_threshold);
1916
1917	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1918}
1919
1920static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1921					 const char __user *user_buf,
1922					 size_t count, loff_t *ppos)
1923{
1924	struct iwl_priv *priv = file->private_data;
1925	char buf[8];
1926	int buf_size;
1927	int missed;
1928
1929	memset(buf, 0, sizeof(buf));
1930	buf_size = min(count, sizeof(buf) -  1);
1931	if (copy_from_user(buf, user_buf, buf_size))
1932		return -EFAULT;
1933	if (sscanf(buf, "%d", &missed) != 1)
1934		return -EINVAL;
1935
1936	if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1937	    missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1938		priv->missed_beacon_threshold =
1939			IWL_MISSED_BEACON_THRESHOLD_DEF;
1940	else
1941		priv->missed_beacon_threshold = missed;
1942
1943	return count;
1944}
1945
1946static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1947					char __user *user_buf,
1948					size_t count, loff_t *ppos) {
1949
1950	struct iwl_priv *priv = file->private_data;
1951	int pos = 0;
1952	char buf[12];
1953	const size_t bufsz = sizeof(buf);
1954
1955	pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1956			priv->plcp_delta_threshold);
1957
1958	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1959}
1960
1961static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1962					const char __user *user_buf,
1963					size_t count, loff_t *ppos) {
1964
1965	struct iwl_priv *priv = file->private_data;
1966	char buf[8];
1967	int buf_size;
1968	int plcp;
1969
1970	memset(buf, 0, sizeof(buf));
1971	buf_size = min(count, sizeof(buf) -  1);
1972	if (copy_from_user(buf, user_buf, buf_size))
1973		return -EFAULT;
1974	if (sscanf(buf, "%d", &plcp) != 1)
1975		return -EINVAL;
1976	if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1977		(plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1978		priv->plcp_delta_threshold =
1979			IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
1980	else
1981		priv->plcp_delta_threshold = plcp;
1982	return count;
1983}
1984
1985static ssize_t iwl_dbgfs_rf_reset_read(struct file *file,
1986				       char __user *user_buf,
1987				       size_t count, loff_t *ppos)
1988{
1989	struct iwl_priv *priv = file->private_data;
1990	int pos = 0;
1991	char buf[300];
1992	const size_t bufsz = sizeof(buf);
1993	struct iwl_rf_reset *rf_reset = &priv->rf_reset;
1994
1995	pos += scnprintf(buf + pos, bufsz - pos,
1996			"RF reset statistics\n");
1997	pos += scnprintf(buf + pos, bufsz - pos,
1998			"\tnumber of reset request: %d\n",
1999			rf_reset->reset_request_count);
2000	pos += scnprintf(buf + pos, bufsz - pos,
2001			"\tnumber of reset request success: %d\n",
2002			rf_reset->reset_success_count);
2003	pos += scnprintf(buf + pos, bufsz - pos,
2004			"\tnumber of reset request reject: %d\n",
2005			rf_reset->reset_reject_count);
2006
2007	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2008}
2009
2010static ssize_t iwl_dbgfs_rf_reset_write(struct file *file,
2011					const char __user *user_buf,
2012					size_t count, loff_t *ppos) {
2013
2014	struct iwl_priv *priv = file->private_data;
2015	int ret;
2016
2017	ret = iwl_force_rf_reset(priv, true);
2018	return ret ? ret : count;
2019}
2020
2021static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
2022					const char __user *user_buf,
2023					size_t count, loff_t *ppos) {
2024
2025	struct iwl_priv *priv = file->private_data;
2026	char buf[8];
2027	int buf_size;
2028	int flush;
2029
2030	memset(buf, 0, sizeof(buf));
2031	buf_size = min(count, sizeof(buf) -  1);
2032	if (copy_from_user(buf, user_buf, buf_size))
2033		return -EFAULT;
2034	if (sscanf(buf, "%d", &flush) != 1)
2035		return -EINVAL;
2036
2037	if (iwl_is_rfkill(priv))
2038		return -EFAULT;
2039
2040	iwlagn_dev_txfifo_flush(priv);
2041
2042	return count;
2043}
2044
2045static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
2046					char __user *user_buf,
2047					size_t count, loff_t *ppos) {
2048
2049	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2050	int pos = 0;
2051	char buf[200];
2052	const size_t bufsz = sizeof(buf);
2053
2054	if (!priv->bt_enable_flag) {
2055		pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2056		return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2057	}
2058	pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
2059		priv->bt_enable_flag);
2060	pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
2061		priv->bt_full_concurrent ? "full concurrency" : "3-wire");
2062	pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
2063			 "last traffic notif: %d\n",
2064		priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2065	pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2066			 "kill_ack_mask: %x, kill_cts_mask: %x\n",
2067		priv->bt_ch_announce, priv->kill_ack_mask,
2068		priv->kill_cts_mask);
2069
2070	pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
2071	switch (priv->bt_traffic_load) {
2072	case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
2073		pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
2074		break;
2075	case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
2076		pos += scnprintf(buf + pos, bufsz - pos, "High\n");
2077		break;
2078	case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
2079		pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
2080		break;
2081	case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
2082	default:
2083		pos += scnprintf(buf + pos, bufsz - pos, "None\n");
2084		break;
2085	}
2086
2087	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2088}
2089
2090static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
2091					char __user *user_buf,
2092					size_t count, loff_t *ppos)
2093{
2094	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2095
2096	int pos = 0;
2097	char buf[40];
2098	const size_t bufsz = sizeof(buf);
2099
2100	if (priv->cfg->ht_params)
2101		pos += scnprintf(buf + pos, bufsz - pos,
2102			 "use %s for aggregation\n",
2103			 (priv->hw_params.use_rts_for_aggregation) ?
2104				"rts/cts" : "cts-to-self");
2105	else
2106		pos += scnprintf(buf + pos, bufsz - pos, "N/A");
2107
2108	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2109}
2110
2111static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
2112					const char __user *user_buf,
2113					size_t count, loff_t *ppos) {
2114
2115	struct iwl_priv *priv = file->private_data;
2116	char buf[8];
2117	int buf_size;
2118	int rts;
2119
2120	if (!priv->cfg->ht_params)
2121		return -EINVAL;
2122
2123	memset(buf, 0, sizeof(buf));
2124	buf_size = min(count, sizeof(buf) -  1);
2125	if (copy_from_user(buf, user_buf, buf_size))
2126		return -EFAULT;
2127	if (sscanf(buf, "%d", &rts) != 1)
2128		return -EINVAL;
2129	if (rts)
2130		priv->hw_params.use_rts_for_aggregation = true;
2131	else
2132		priv->hw_params.use_rts_for_aggregation = false;
2133	return count;
2134}
2135
2136static int iwl_cmd_echo_test(struct iwl_priv *priv)
2137{
2138	int ret;
2139	struct iwl_host_cmd cmd = {
2140		.id = REPLY_ECHO,
2141		.len = { 0 },
2142	};
2143
2144	ret = iwl_dvm_send_cmd(priv, &cmd);
2145	if (ret)
2146		IWL_ERR(priv, "echo testing fail: 0X%x\n", ret);
2147	else
2148		IWL_DEBUG_INFO(priv, "echo testing pass\n");
2149	return ret;
2150}
2151
2152static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
2153					const char __user *user_buf,
2154					size_t count, loff_t *ppos)
2155{
2156	struct iwl_priv *priv = file->private_data;
2157	char buf[8];
2158	int buf_size;
2159
2160	memset(buf, 0, sizeof(buf));
2161	buf_size = min(count, sizeof(buf) -  1);
2162	if (copy_from_user(buf, user_buf, buf_size))
2163		return -EFAULT;
2164
2165	iwl_cmd_echo_test(priv);
2166	return count;
2167}
2168
2169#ifdef CONFIG_IWLWIFI_DEBUG
2170static ssize_t iwl_dbgfs_log_event_read(struct file *file,
2171					 char __user *user_buf,
2172					 size_t count, loff_t *ppos)
2173{
2174	struct iwl_priv *priv = file->private_data;
2175	char *buf = NULL;
2176	ssize_t ret;
2177
2178	ret = iwl_dump_nic_event_log(priv, true, &buf);
2179	if (ret > 0)
2180		ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
2181	kfree(buf);
2182	return ret;
2183}
2184
2185static ssize_t iwl_dbgfs_log_event_write(struct file *file,
2186					const char __user *user_buf,
2187					size_t count, loff_t *ppos)
2188{
2189	struct iwl_priv *priv = file->private_data;
2190	u32 event_log_flag;
2191	char buf[8];
2192	int buf_size;
2193
2194	/* check that the interface is up */
2195	if (!iwl_is_ready(priv))
2196		return -EAGAIN;
2197
2198	memset(buf, 0, sizeof(buf));
2199	buf_size = min(count, sizeof(buf) -  1);
2200	if (copy_from_user(buf, user_buf, buf_size))
2201		return -EFAULT;
2202	if (sscanf(buf, "%u", &event_log_flag) != 1)
2203		return -EFAULT;
2204	if (event_log_flag == 1)
2205		iwl_dump_nic_event_log(priv, true, NULL);
2206
2207	return count;
2208}
2209#endif
2210
2211static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file,
2212					 char __user *user_buf,
2213					 size_t count, loff_t *ppos)
2214{
2215	struct iwl_priv *priv = file->private_data;
2216	char buf[120];
2217	int pos = 0;
2218	const size_t bufsz = sizeof(buf);
2219
2220	pos += scnprintf(buf + pos, bufsz - pos,
2221			 "Sensitivity calibrations %s\n",
2222			 (priv->calib_disabled &
2223					IWL_SENSITIVITY_CALIB_DISABLED) ?
2224			 "DISABLED" : "ENABLED");
2225	pos += scnprintf(buf + pos, bufsz - pos,
2226			 "Chain noise calibrations %s\n",
2227			 (priv->calib_disabled &
2228					IWL_CHAIN_NOISE_CALIB_DISABLED) ?
2229			 "DISABLED" : "ENABLED");
2230	pos += scnprintf(buf + pos, bufsz - pos,
2231			 "Tx power calibrations %s\n",
2232			 (priv->calib_disabled &
2233					IWL_TX_POWER_CALIB_DISABLED) ?
2234			 "DISABLED" : "ENABLED");
2235
2236	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2237}
2238
2239static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
2240					      const char __user *user_buf,
2241					      size_t count, loff_t *ppos)
2242{
2243	struct iwl_priv *priv = file->private_data;
2244	char buf[8];
2245	u32 calib_disabled;
2246	int buf_size;
2247
2248	memset(buf, 0, sizeof(buf));
2249	buf_size = min(count, sizeof(buf) - 1);
2250	if (copy_from_user(buf, user_buf, buf_size))
2251		return -EFAULT;
2252	if (sscanf(buf, "%x", &calib_disabled) != 1)
2253		return -EFAULT;
2254
2255	priv->calib_disabled = calib_disabled;
2256
2257	return count;
2258}
2259
2260static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
2261					  const char __user *user_buf,
2262					  size_t count, loff_t *ppos)
2263{
2264	struct iwl_priv *priv = file->private_data;
2265	bool fw_restart = iwlwifi_mod_params.fw_restart;
2266	int __maybe_unused ret;
2267
2268	iwlwifi_mod_params.fw_restart = true;
2269
2270	mutex_lock(&priv->mutex);
2271
2272	/* take the return value to make compiler happy - it will fail anyway */
2273	ret = iwl_dvm_send_cmd_pdu(priv, REPLY_ERROR, 0, 0, NULL);
2274
2275	mutex_unlock(&priv->mutex);
2276
2277	iwlwifi_mod_params.fw_restart = fw_restart;
2278
2279	return count;
2280}
2281
2282DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2283DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2284DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2285DEBUGFS_READ_FILE_OPS(sensitivity);
2286DEBUGFS_READ_FILE_OPS(chain_noise);
2287DEBUGFS_READ_FILE_OPS(power_save_status);
2288DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2289DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2290DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2291DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2292DEBUGFS_READ_WRITE_FILE_OPS(rf_reset);
2293DEBUGFS_READ_FILE_OPS(rxon_flags);
2294DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2295DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2296DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2297DEBUGFS_READ_FILE_OPS(bt_traffic);
2298DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2299DEBUGFS_READ_FILE_OPS(reply_tx_error);
2300DEBUGFS_WRITE_FILE_OPS(echo_test);
2301DEBUGFS_WRITE_FILE_OPS(fw_restart);
2302#ifdef CONFIG_IWLWIFI_DEBUG
2303DEBUGFS_READ_WRITE_FILE_OPS(log_event);
2304#endif
2305DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
2306
2307/*
2308 * Create the debugfs files and directories
2309 *
2310 */
2311void iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
2312{
2313	struct dentry *dir_data, *dir_rf, *dir_debug;
2314
2315	priv->debugfs_dir = dbgfs_dir;
2316
2317	dir_data = debugfs_create_dir("data", dbgfs_dir);
2318	dir_rf = debugfs_create_dir("rf", dbgfs_dir);
2319	dir_debug = debugfs_create_dir("debug", dbgfs_dir);
2320
2321	DEBUGFS_ADD_FILE(nvm, dir_data, 0400);
2322	DEBUGFS_ADD_FILE(sram, dir_data, 0600);
2323	DEBUGFS_ADD_FILE(wowlan_sram, dir_data, 0400);
2324	DEBUGFS_ADD_FILE(stations, dir_data, 0400);
2325	DEBUGFS_ADD_FILE(channels, dir_data, 0400);
2326	DEBUGFS_ADD_FILE(status, dir_data, 0400);
2327	DEBUGFS_ADD_FILE(rx_handlers, dir_data, 0600);
2328	DEBUGFS_ADD_FILE(qos, dir_data, 0400);
2329	DEBUGFS_ADD_FILE(sleep_level_override, dir_data, 0600);
2330	DEBUGFS_ADD_FILE(current_sleep_command, dir_data, 0400);
2331	DEBUGFS_ADD_FILE(thermal_throttling, dir_data, 0400);
2332	DEBUGFS_ADD_FILE(disable_ht40, dir_data, 0600);
2333	DEBUGFS_ADD_FILE(temperature, dir_data, 0400);
2334
2335	DEBUGFS_ADD_FILE(power_save_status, dir_debug, 0400);
2336	DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, 0200);
2337	DEBUGFS_ADD_FILE(missed_beacon, dir_debug, 0200);
2338	DEBUGFS_ADD_FILE(plcp_delta, dir_debug, 0600);
2339	DEBUGFS_ADD_FILE(rf_reset, dir_debug, 0600);
2340	DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, 0400);
2341	DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, 0400);
2342	DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, 0400);
2343	DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, 0200);
2344	DEBUGFS_ADD_FILE(protection_mode, dir_debug, 0600);
2345	DEBUGFS_ADD_FILE(sensitivity, dir_debug, 0400);
2346	DEBUGFS_ADD_FILE(chain_noise, dir_debug, 0400);
2347	DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, 0600);
2348	DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, 0400);
2349	DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, 0400);
2350	DEBUGFS_ADD_FILE(rxon_flags, dir_debug, 0200);
2351	DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, 0200);
2352	DEBUGFS_ADD_FILE(echo_test, dir_debug, 0200);
2353	DEBUGFS_ADD_FILE(fw_restart, dir_debug, 0200);
2354#ifdef CONFIG_IWLWIFI_DEBUG
2355	DEBUGFS_ADD_FILE(log_event, dir_debug, 0600);
2356#endif
2357
2358	if (iwl_advanced_bt_coexist(priv))
2359		DEBUGFS_ADD_FILE(bt_traffic, dir_debug, 0400);
2360
2361	/* Calibrations disabled/enabled status*/
2362	DEBUGFS_ADD_FILE(calib_disabled, dir_rf, 0600);
2363
2364	/*
2365	 * Create a symlink with mac80211. This is not very robust, as it does
2366	 * not remove the symlink created. The implicit assumption is that
2367	 * when the opmode exits, mac80211 will also exit, and will remove
2368	 * this symlink as part of its cleanup.
2369	 */
2370	if (priv->mac80211_registered) {
2371		char buf[100];
2372		struct dentry *mac80211_dir, *dev_dir;
2373
2374		dev_dir = dbgfs_dir->d_parent;
2375		mac80211_dir = priv->hw->wiphy->debugfsdir;
2376
2377		snprintf(buf, 100, "../../%pd2", dev_dir);
2378
2379		debugfs_create_symlink("iwlwifi", mac80211_dir, buf);
2380	}
2381}