1/******************************************************************************
   2 *
   3 * GPL LICENSE SUMMARY
   4 *
   5 * Copyright(c) 2008 - 2012 Intel Corporation. All rights reserved.
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of version 2 of the GNU General Public License as
   9 * published by the Free Software Foundation.
  10 *
  11 * This program is distributed in the hope that it will be useful, but
  12 * WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 * General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  19 * USA
  20 *
  21 * The full GNU General Public License is included in this distribution
  22 * in the file called LICENSE.GPL.
  23 *
  24 * Contact Information:
  25 *  Intel Linux Wireless <ilw@linux.intel.com>
  26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  27 *****************************************************************************/
  28
  29#include <linux/slab.h>
  30#include <linux/kernel.h>
  31#include <linux/module.h>
  32#include <linux/debugfs.h>
  33
  34#include <linux/ieee80211.h>
  35#include <net/mac80211.h>
  36
  37
  38#include "iwl-dev.h"
  39#include "iwl-debug.h"
  40#include "iwl-io.h"
  41#include "iwl-agn.h"
  42#include "iwl-modparams.h"
  43
  44/* create and remove of files */
  45#define DEBUGFS_ADD_FILE(name, parent, mode) do {			\
  46	if (!debugfs_create_file(#name, mode, parent, priv,		\
  47				 &iwl_dbgfs_##name##_ops))		\
  48		goto err;						\
  49} while (0)
  50
  51#define DEBUGFS_ADD_BOOL(name, parent, ptr) do {			\
  52	struct dentry *__tmp;						\
  53	__tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR,		\
  54				    parent, ptr);			\
  55	if (IS_ERR(__tmp) || !__tmp)					\
  56		goto err;						\
  57} while (0)
  58
  59#define DEBUGFS_ADD_X32(name, parent, ptr) do {				\
  60	struct dentry *__tmp;						\
  61	__tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR,		\
  62				   parent, ptr);			\
  63	if (IS_ERR(__tmp) || !__tmp)					\
  64		goto err;						\
  65} while (0)
  66
  67#define DEBUGFS_ADD_U32(name, parent, ptr, mode) do {			\
  68	struct dentry *__tmp;						\
  69	__tmp = debugfs_create_u32(#name, mode,				\
  70				   parent, ptr);			\
  71	if (IS_ERR(__tmp) || !__tmp)					\
  72		goto err;						\
  73} while (0)
  74
  75/* file operation */
  76#define DEBUGFS_READ_FUNC(name)                                         \
  77static ssize_t iwl_dbgfs_##name##_read(struct file *file,               \
  78					char __user *user_buf,          \
  79					size_t count, loff_t *ppos);
  80
  81#define DEBUGFS_WRITE_FUNC(name)                                        \
  82static ssize_t iwl_dbgfs_##name##_write(struct file *file,              \
  83					const char __user *user_buf,    \
  84					size_t count, loff_t *ppos);
  85
  86
  87#define DEBUGFS_READ_FILE_OPS(name)                                     \
  88	DEBUGFS_READ_FUNC(name);                                        \
  89static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  90	.read = iwl_dbgfs_##name##_read,                       		\
  91	.open = simple_open,						\
  92	.llseek = generic_file_llseek,					\
  93};
  94
  95#define DEBUGFS_WRITE_FILE_OPS(name)                                    \
  96	DEBUGFS_WRITE_FUNC(name);                                       \
  97static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  98	.write = iwl_dbgfs_##name##_write,                              \
  99	.open = simple_open,						\
 100	.llseek = generic_file_llseek,					\
 101};
 102
 103
 104#define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
 105	DEBUGFS_READ_FUNC(name);                                        \
 106	DEBUGFS_WRITE_FUNC(name);                                       \
 107static const struct file_operations iwl_dbgfs_##name##_ops = {          \
 108	.write = iwl_dbgfs_##name##_write,                              \
 109	.read = iwl_dbgfs_##name##_read,                                \
 110	.open = simple_open,						\
 111	.llseek = generic_file_llseek,					\
 112};
 113
 114static ssize_t iwl_dbgfs_sram_read(struct file *file,
 115					char __user *user_buf,
 116					size_t count, loff_t *ppos)
 117{
 118	u32 val = 0;
 119	char *buf;
 120	ssize_t ret;
 121	int i = 0;
 122	bool device_format = false;
 123	int offset = 0;
 124	int len = 0;
 125	int pos = 0;
 126	int sram;
 127	struct iwl_priv *priv = file->private_data;
 128	const struct fw_img *img;
 129	size_t bufsz;
 130
 131	if (!iwl_is_ready_rf(priv))
 132		return -EAGAIN;
 133
 134	/* default is to dump the entire data segment */
 135	if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
 136		priv->dbgfs_sram_offset = 0x800000;
 137		if (!priv->ucode_loaded)
 138			return -EINVAL;
 139		img = &priv->fw->img[priv->cur_ucode];
 140		priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
 141	}
 142	len = priv->dbgfs_sram_len;
 143
 144	if (len == -4) {
 145		device_format = true;
 146		len = 4;
 147	}
 148
 149	bufsz =  50 + len * 4;
 150	buf = kmalloc(bufsz, GFP_KERNEL);
 151	if (!buf)
 152		return -ENOMEM;
 153
 154	pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
 155			 len);
 156	pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
 157			priv->dbgfs_sram_offset);
 158
 159	/* adjust sram address since reads are only on even u32 boundaries */
 160	offset = priv->dbgfs_sram_offset & 0x3;
 161	sram = priv->dbgfs_sram_offset & ~0x3;
 162
 163	/* read the first u32 from sram */
 164	val = iwl_read_targ_mem(priv->trans, sram);
 165
 166	for (; len; len--) {
 167		/* put the address at the start of every line */
 168		if (i == 0)
 169			pos += scnprintf(buf + pos, bufsz - pos,
 170				"%08X: ", sram + offset);
 171
 172		if (device_format)
 173			pos += scnprintf(buf + pos, bufsz - pos,
 174				"%02x", (val >> (8 * (3 - offset))) & 0xff);
 175		else
 176			pos += scnprintf(buf + pos, bufsz - pos,
 177				"%02x ", (val >> (8 * offset)) & 0xff);
 178
 179		/* if all bytes processed, read the next u32 from sram */
 180		if (++offset == 4) {
 181			sram += 4;
 182			offset = 0;
 183			val = iwl_read_targ_mem(priv->trans, sram);
 184		}
 185
 186		/* put in extra spaces and split lines for human readability */
 187		if (++i == 16) {
 188			i = 0;
 189			pos += scnprintf(buf + pos, bufsz - pos, "\n");
 190		} else if (!(i & 7)) {
 191			pos += scnprintf(buf + pos, bufsz - pos, "   ");
 192		} else if (!(i & 3)) {
 193			pos += scnprintf(buf + pos, bufsz - pos, " ");
 194		}
 195	}
 196	if (i)
 197		pos += scnprintf(buf + pos, bufsz - pos, "\n");
 198
 199	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 200	kfree(buf);
 201	return ret;
 202}
 203
 204static ssize_t iwl_dbgfs_sram_write(struct file *file,
 205					const char __user *user_buf,
 206					size_t count, loff_t *ppos)
 207{
 208	struct iwl_priv *priv = file->private_data;
 209	char buf[64];
 210	int buf_size;
 211	u32 offset, len;
 212
 213	memset(buf, 0, sizeof(buf));
 214	buf_size = min(count, sizeof(buf) -  1);
 215	if (copy_from_user(buf, user_buf, buf_size))
 216		return -EFAULT;
 217
 218	if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 219		priv->dbgfs_sram_offset = offset;
 220		priv->dbgfs_sram_len = len;
 221	} else if (sscanf(buf, "%x", &offset) == 1) {
 222		priv->dbgfs_sram_offset = offset;
 223		priv->dbgfs_sram_len = -4;
 224	} else {
 225		priv->dbgfs_sram_offset = 0;
 226		priv->dbgfs_sram_len = 0;
 227	}
 228
 229	return count;
 230}
 231
 232static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
 233					  char __user *user_buf,
 234					  size_t count, loff_t *ppos)
 235{
 236	struct iwl_priv *priv = file->private_data;
 237	const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN];
 238
 239	if (!priv->wowlan_sram)
 240		return -ENODATA;
 241
 242	return simple_read_from_buffer(user_buf, count, ppos,
 243				       priv->wowlan_sram,
 244				       img->sec[IWL_UCODE_SECTION_DATA].len);
 245}
 246static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 247					size_t count, loff_t *ppos)
 248{
 249	struct iwl_priv *priv = file->private_data;
 250	struct iwl_station_entry *station;
 251	struct iwl_tid_data *tid_data;
 252	char *buf;
 253	int i, j, pos = 0;
 254	ssize_t ret;
 255	/* Add 30 for initial string */
 256	const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
 257
 258	buf = kmalloc(bufsz, GFP_KERNEL);
 259	if (!buf)
 260		return -ENOMEM;
 261
 262	pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
 263			priv->num_stations);
 264
 265	for (i = 0; i < IWLAGN_STATION_COUNT; i++) {
 266		station = &priv->stations[i];
 267		if (!station->used)
 268			continue;
 269		pos += scnprintf(buf + pos, bufsz - pos,
 270				 "station %d - addr: %pM, flags: %#x\n",
 271				 i, station->sta.sta.addr,
 272				 station->sta.station_flags_msk);
 273		pos += scnprintf(buf + pos, bufsz - pos,
 274				"TID seqno  next_rclmd "
 275				"rate_n_flags state txq\n");
 276
 277		for (j = 0; j < IWL_MAX_TID_COUNT; j++) {
 278			tid_data = &priv->tid_data[i][j];
 279			pos += scnprintf(buf + pos, bufsz - pos,
 280				"%d:  0x%.4x 0x%.4x     0x%.8x   "
 281				"%d     %.2d",
 282				j, tid_data->seq_number,
 283				tid_data->next_reclaimed,
 284				tid_data->agg.rate_n_flags,
 285				tid_data->agg.state,
 286				tid_data->agg.txq_id);
 287
 288			if (tid_data->agg.wait_for_ba)
 289				pos += scnprintf(buf + pos, bufsz - pos,
 290						 " - waitforba");
 291			pos += scnprintf(buf + pos, bufsz - pos, "\n");
 292		}
 293
 294		pos += scnprintf(buf + pos, bufsz - pos, "\n");
 295	}
 296
 297	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 298	kfree(buf);
 299	return ret;
 300}
 301
 302static ssize_t iwl_dbgfs_nvm_read(struct file *file,
 303				       char __user *user_buf,
 304				       size_t count,
 305				       loff_t *ppos)
 306{
 307	ssize_t ret;
 308	struct iwl_priv *priv = file->private_data;
 309	int pos = 0, ofs = 0, buf_size = 0;
 310	const u8 *ptr;
 311	char *buf;
 312	u16 eeprom_ver;
 313	size_t eeprom_len = priv->cfg->base_params->eeprom_size;
 314	buf_size = 4 * eeprom_len + 256;
 315
 316	if (eeprom_len % 16)
 317		return -ENODATA;
 318
 319	ptr = priv->eeprom;
 320	if (!ptr)
 321		return -ENOMEM;
 322
 323	/* 4 characters for byte 0xYY */
 324	buf = kzalloc(buf_size, GFP_KERNEL);
 325	if (!buf)
 326		return -ENOMEM;
 327
 328	eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
 329	pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
 330			"version: 0x%x\n",
 331			(priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
 332			 ? "OTP" : "EEPROM", eeprom_ver);
 333	for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
 334		pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
 335		hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
 336				   buf_size - pos, 0);
 337		pos += strlen(buf + pos);
 338		if (buf_size - pos > 0)
 339			buf[pos++] = '\n';
 340	}
 341
 342	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 343	kfree(buf);
 344	return ret;
 345}
 346
 347static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 348				       size_t count, loff_t *ppos)
 349{
 350	struct iwl_priv *priv = file->private_data;
 351	struct ieee80211_channel *channels = NULL;
 352	const struct ieee80211_supported_band *supp_band = NULL;
 353	int pos = 0, i, bufsz = PAGE_SIZE;
 354	char *buf;
 355	ssize_t ret;
 356
 357	if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
 358		return -EAGAIN;
 359
 360	buf = kzalloc(bufsz, GFP_KERNEL);
 361	if (!buf)
 362		return -ENOMEM;
 363
 364	supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
 365	if (supp_band) {
 366		channels = supp_band->channels;
 367
 368		pos += scnprintf(buf + pos, bufsz - pos,
 369				"Displaying %d channels in 2.4GHz band 802.11bg):\n",
 370				supp_band->n_channels);
 371
 372		for (i = 0; i < supp_band->n_channels; i++)
 373			pos += scnprintf(buf + pos, bufsz - pos,
 374					"%d: %ddBm: BSS%s%s, %s.\n",
 375					channels[i].hw_value,
 376					channels[i].max_power,
 377					channels[i].flags & IEEE80211_CHAN_RADAR ?
 378					" (IEEE 802.11h required)" : "",
 379					((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 380					|| (channels[i].flags &
 381					IEEE80211_CHAN_RADAR)) ? "" :
 382					", IBSS",
 383					channels[i].flags &
 384					IEEE80211_CHAN_PASSIVE_SCAN ?
 385					"passive only" : "active/passive");
 386	}
 387	supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
 388	if (supp_band) {
 389		channels = supp_band->channels;
 390
 391		pos += scnprintf(buf + pos, bufsz - pos,
 392				"Displaying %d channels in 5.2GHz band (802.11a)\n",
 393				supp_band->n_channels);
 394
 395		for (i = 0; i < supp_band->n_channels; i++)
 396			pos += scnprintf(buf + pos, bufsz - pos,
 397					"%d: %ddBm: BSS%s%s, %s.\n",
 398					channels[i].hw_value,
 399					channels[i].max_power,
 400					channels[i].flags & IEEE80211_CHAN_RADAR ?
 401					" (IEEE 802.11h required)" : "",
 402					((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 403					|| (channels[i].flags &
 404					IEEE80211_CHAN_RADAR)) ? "" :
 405					", IBSS",
 406					channels[i].flags &
 407					IEEE80211_CHAN_PASSIVE_SCAN ?
 408					"passive only" : "active/passive");
 409	}
 410	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 411	kfree(buf);
 412	return ret;
 413}
 414
 415static ssize_t iwl_dbgfs_status_read(struct file *file,
 416						char __user *user_buf,
 417						size_t count, loff_t *ppos) {
 418
 419	struct iwl_priv *priv = file->private_data;
 420	char buf[512];
 421	int pos = 0;
 422	const size_t bufsz = sizeof(buf);
 423
 424	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 425		test_bit(STATUS_RF_KILL_HW, &priv->status));
 426	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 427		test_bit(STATUS_CT_KILL, &priv->status));
 428	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 429		test_bit(STATUS_ALIVE, &priv->status));
 430	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 431		test_bit(STATUS_READY, &priv->status));
 432	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
 433		test_bit(STATUS_GEO_CONFIGURED, &priv->status));
 434	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 435		test_bit(STATUS_EXIT_PENDING, &priv->status));
 436	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 437		test_bit(STATUS_STATISTICS, &priv->status));
 438	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 439		test_bit(STATUS_SCANNING, &priv->status));
 440	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 441		test_bit(STATUS_SCAN_ABORTING, &priv->status));
 442	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 443		test_bit(STATUS_SCAN_HW, &priv->status));
 444	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 445		test_bit(STATUS_POWER_PMI, &priv->status));
 446	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 447		test_bit(STATUS_FW_ERROR, &priv->status));
 448	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 449}
 450
 451static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file,
 452					char __user *user_buf,
 453					size_t count, loff_t *ppos) {
 454
 455	struct iwl_priv *priv = file->private_data;
 456
 457	int pos = 0;
 458	int cnt = 0;
 459	char *buf;
 460	int bufsz = 24 * 64; /* 24 items * 64 char per item */
 461	ssize_t ret;
 462
 463	buf = kzalloc(bufsz, GFP_KERNEL);
 464	if (!buf)
 465		return -ENOMEM;
 466
 467	for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 468		if (priv->rx_handlers_stats[cnt] > 0)
 469			pos += scnprintf(buf + pos, bufsz - pos,
 470				"\tRx handler[%36s]:\t\t %u\n",
 471				iwl_dvm_get_cmd_string(cnt),
 472				priv->rx_handlers_stats[cnt]);
 473	}
 474
 475	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 476	kfree(buf);
 477	return ret;
 478}
 479
 480static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
 481					 const char __user *user_buf,
 482					 size_t count, loff_t *ppos)
 483{
 484	struct iwl_priv *priv = file->private_data;
 485
 486	char buf[8];
 487	int buf_size;
 488	u32 reset_flag;
 489
 490	memset(buf, 0, sizeof(buf));
 491	buf_size = min(count, sizeof(buf) -  1);
 492	if (copy_from_user(buf, user_buf, buf_size))
 493		return -EFAULT;
 494	if (sscanf(buf, "%x", &reset_flag) != 1)
 495		return -EFAULT;
 496	if (reset_flag == 0)
 497		memset(&priv->rx_handlers_stats[0], 0,
 498			sizeof(priv->rx_handlers_stats));
 499
 500	return count;
 501}
 502
 503static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 504				       size_t count, loff_t *ppos)
 505{
 506	struct iwl_priv *priv = file->private_data;
 507	struct iwl_rxon_context *ctx;
 508	int pos = 0, i;
 509	char buf[256 * NUM_IWL_RXON_CTX];
 510	const size_t bufsz = sizeof(buf);
 511
 512	for_each_context(priv, ctx) {
 513		pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
 514				 ctx->ctxid);
 515		for (i = 0; i < AC_NUM; i++) {
 516			pos += scnprintf(buf + pos, bufsz - pos,
 517				"\tcw_min\tcw_max\taifsn\ttxop\n");
 518			pos += scnprintf(buf + pos, bufsz - pos,
 519				"AC[%d]\t%u\t%u\t%u\t%u\n", i,
 520				ctx->qos_data.def_qos_parm.ac[i].cw_min,
 521				ctx->qos_data.def_qos_parm.ac[i].cw_max,
 522				ctx->qos_data.def_qos_parm.ac[i].aifsn,
 523				ctx->qos_data.def_qos_parm.ac[i].edca_txop);
 524		}
 525		pos += scnprintf(buf + pos, bufsz - pos, "\n");
 526	}
 527	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 528}
 529
 530static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 531				char __user *user_buf,
 532				size_t count, loff_t *ppos)
 533{
 534	struct iwl_priv *priv = file->private_data;
 535	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 536	struct iwl_tt_restriction *restriction;
 537	char buf[100];
 538	int pos = 0;
 539	const size_t bufsz = sizeof(buf);
 540
 541	pos += scnprintf(buf + pos, bufsz - pos,
 542			"Thermal Throttling Mode: %s\n",
 543			tt->advanced_tt ? "Advance" : "Legacy");
 544	pos += scnprintf(buf + pos, bufsz - pos,
 545			"Thermal Throttling State: %d\n",
 546			tt->state);
 547	if (tt->advanced_tt) {
 548		restriction = tt->restriction + tt->state;
 549		pos += scnprintf(buf + pos, bufsz - pos,
 550				"Tx mode: %d\n",
 551				restriction->tx_stream);
 552		pos += scnprintf(buf + pos, bufsz - pos,
 553				"Rx mode: %d\n",
 554				restriction->rx_stream);
 555		pos += scnprintf(buf + pos, bufsz - pos,
 556				"HT mode: %d\n",
 557				restriction->is_ht);
 558	}
 559	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 560}
 561
 562static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 563					 const char __user *user_buf,
 564					 size_t count, loff_t *ppos)
 565{
 566	struct iwl_priv *priv = file->private_data;
 567	char buf[8];
 568	int buf_size;
 569	int ht40;
 570
 571	memset(buf, 0, sizeof(buf));
 572	buf_size = min(count, sizeof(buf) -  1);
 573	if (copy_from_user(buf, user_buf, buf_size))
 574		return -EFAULT;
 575	if (sscanf(buf, "%d", &ht40) != 1)
 576		return -EFAULT;
 577	if (!iwl_is_any_associated(priv))
 578		priv->disable_ht40 = ht40 ? true : false;
 579	else
 580		return -EINVAL;
 581
 582	return count;
 583}
 584
 585static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 586					 char __user *user_buf,
 587					 size_t count, loff_t *ppos)
 588{
 589	struct iwl_priv *priv = file->private_data;
 590	char buf[100];
 591	int pos = 0;
 592	const size_t bufsz = sizeof(buf);
 593
 594	pos += scnprintf(buf + pos, bufsz - pos,
 595			"11n 40MHz Mode: %s\n",
 596			priv->disable_ht40 ? "Disabled" : "Enabled");
 597	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 598}
 599
 600static ssize_t iwl_dbgfs_temperature_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[8];
 606	int pos = 0;
 607	const size_t bufsz = sizeof(buf);
 608
 609	pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->temperature);
 610	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 611}
 612
 613
 614static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 615						    const char __user *user_buf,
 616						    size_t count, loff_t *ppos)
 617{
 618	struct iwl_priv *priv = file->private_data;
 619	char buf[8];
 620	int buf_size;
 621	int value;
 622
 623	memset(buf, 0, sizeof(buf));
 624	buf_size = min(count, sizeof(buf) -  1);
 625	if (copy_from_user(buf, user_buf, buf_size))
 626		return -EFAULT;
 627
 628	if (sscanf(buf, "%d", &value) != 1)
 629		return -EINVAL;
 630
 631	/*
 632	 * Our users expect 0 to be "CAM", but 0 isn't actually
 633	 * valid here. However, let's not confuse them and present
 634	 * IWL_POWER_INDEX_1 as "1", not "0".
 635	 */
 636	if (value == 0)
 637		return -EINVAL;
 638	else if (value > 0)
 639		value -= 1;
 640
 641	if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 642		return -EINVAL;
 643
 644	if (!iwl_is_ready_rf(priv))
 645		return -EAGAIN;
 646
 647	priv->power_data.debug_sleep_level_override = value;
 648
 649	mutex_lock(&priv->mutex);
 650	iwl_power_update_mode(priv, true);
 651	mutex_unlock(&priv->mutex);
 652
 653	return count;
 654}
 655
 656static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 657						   char __user *user_buf,
 658						   size_t count, loff_t *ppos)
 659{
 660	struct iwl_priv *priv = file->private_data;
 661	char buf[10];
 662	int pos, value;
 663	const size_t bufsz = sizeof(buf);
 664
 665	/* see the write function */
 666	value = priv->power_data.debug_sleep_level_override;
 667	if (value >= 0)
 668		value += 1;
 669
 670	pos = scnprintf(buf, bufsz, "%d\n", value);
 671	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 672}
 673
 674static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 675						    char __user *user_buf,
 676						    size_t count, loff_t *ppos)
 677{
 678	struct iwl_priv *priv = file->private_data;
 679	char buf[200];
 680	int pos = 0, i;
 681	const size_t bufsz = sizeof(buf);
 682	struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 683
 684	pos += scnprintf(buf + pos, bufsz - pos,
 685			 "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 686	pos += scnprintf(buf + pos, bufsz - pos,
 687			 "RX/TX timeout: %d/%d usec\n",
 688			 le32_to_cpu(cmd->rx_data_timeout),
 689			 le32_to_cpu(cmd->tx_data_timeout));
 690	for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 691		pos += scnprintf(buf + pos, bufsz - pos,
 692				 "sleep_interval[%d]: %d\n", i,
 693				 le32_to_cpu(cmd->sleep_interval[i]));
 694
 695	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 696}
 697
 698DEBUGFS_READ_WRITE_FILE_OPS(sram);
 699DEBUGFS_READ_FILE_OPS(wowlan_sram);
 700DEBUGFS_READ_FILE_OPS(nvm);
 701DEBUGFS_READ_FILE_OPS(stations);
 702DEBUGFS_READ_FILE_OPS(channels);
 703DEBUGFS_READ_FILE_OPS(status);
 704DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers);
 705DEBUGFS_READ_FILE_OPS(qos);
 706DEBUGFS_READ_FILE_OPS(thermal_throttling);
 707DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 708DEBUGFS_READ_FILE_OPS(temperature);
 709DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 710DEBUGFS_READ_FILE_OPS(current_sleep_command);
 711
 712static const char *fmt_value = "  %-30s %10u\n";
 713static const char *fmt_hex   = "  %-30s       0x%02X\n";
 714static const char *fmt_table = "  %-30s %10u  %10u  %10u  %10u\n";
 715static const char *fmt_header =
 716	"%-32s    current  cumulative       delta         max\n";
 717
 718static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
 719{
 720	int p = 0;
 721	u32 flag;
 722
 723	lockdep_assert_held(&priv->statistics.lock);
 724
 725	flag = le32_to_cpu(priv->statistics.flag);
 726
 727	p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
 728	if (flag & UCODE_STATISTICS_CLEAR_MSK)
 729		p += scnprintf(buf + p, bufsz - p,
 730		"\tStatistics have been cleared\n");
 731	p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
 732		(flag & UCODE_STATISTICS_FREQUENCY_MSK)
 733		? "2.4 GHz" : "5.2 GHz");
 734	p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
 735		(flag & UCODE_STATISTICS_NARROW_BAND_MSK)
 736		 ? "enabled" : "disabled");
 737
 738	return p;
 739}
 740
 741static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
 742					char __user *user_buf,
 743					size_t count, loff_t *ppos)
 744{
 745	struct iwl_priv *priv = file->private_data;
 746	int pos = 0;
 747	char *buf;
 748	int bufsz = sizeof(struct statistics_rx_phy) * 40 +
 749		    sizeof(struct statistics_rx_non_phy) * 40 +
 750		    sizeof(struct statistics_rx_ht_phy) * 40 + 400;
 751	ssize_t ret;
 752	struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
 753	struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
 754	struct statistics_rx_non_phy *general, *accum_general;
 755	struct statistics_rx_non_phy *delta_general, *max_general;
 756	struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
 757
 758	if (!iwl_is_alive(priv))
 759		return -EAGAIN;
 760
 761	buf = kzalloc(bufsz, GFP_KERNEL);
 762	if (!buf)
 763		return -ENOMEM;
 764
 765	/*
 766	 * the statistic information display here is based on
 767	 * the last statistics notification from uCode
 768	 * might not reflect the current uCode activity
 769	 */
 770	spin_lock_bh(&priv->statistics.lock);
 771	ofdm = &priv->statistics.rx_ofdm;
 772	cck = &priv->statistics.rx_cck;
 773	general = &priv->statistics.rx_non_phy;
 774	ht = &priv->statistics.rx_ofdm_ht;
 775	accum_ofdm = &priv->accum_stats.rx_ofdm;
 776	accum_cck = &priv->accum_stats.rx_cck;
 777	accum_general = &priv->accum_stats.rx_non_phy;
 778	accum_ht = &priv->accum_stats.rx_ofdm_ht;
 779	delta_ofdm = &priv->delta_stats.rx_ofdm;
 780	delta_cck = &priv->delta_stats.rx_cck;
 781	delta_general = &priv->delta_stats.rx_non_phy;
 782	delta_ht = &priv->delta_stats.rx_ofdm_ht;
 783	max_ofdm = &priv->max_delta_stats.rx_ofdm;
 784	max_cck = &priv->max_delta_stats.rx_cck;
 785	max_general = &priv->max_delta_stats.rx_non_phy;
 786	max_ht = &priv->max_delta_stats.rx_ofdm_ht;
 787
 788	pos += iwl_statistics_flag(priv, buf, bufsz);
 789	pos += scnprintf(buf + pos, bufsz - pos,
 790			 fmt_header, "Statistics_Rx - OFDM:");
 791	pos += scnprintf(buf + pos, bufsz - pos,
 792			 fmt_table, "ina_cnt:",
 793			 le32_to_cpu(ofdm->ina_cnt),
 794			 accum_ofdm->ina_cnt,
 795			 delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
 796	pos += scnprintf(buf + pos, bufsz - pos,
 797			 fmt_table, "fina_cnt:",
 798			 le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
 799			 delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
 800	pos += scnprintf(buf + pos, bufsz - pos,
 801			 fmt_table, "plcp_err:",
 802			 le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
 803			 delta_ofdm->plcp_err, max_ofdm->plcp_err);
 804	pos += scnprintf(buf + pos, bufsz - pos,
 805			 fmt_table, "crc32_err:",
 806			 le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
 807			 delta_ofdm->crc32_err, max_ofdm->crc32_err);
 808	pos += scnprintf(buf + pos, bufsz - pos,
 809			 fmt_table, "overrun_err:",
 810			 le32_to_cpu(ofdm->overrun_err),
 811			 accum_ofdm->overrun_err, delta_ofdm->overrun_err,
 812			 max_ofdm->overrun_err);
 813	pos += scnprintf(buf + pos, bufsz - pos,
 814			 fmt_table, "early_overrun_err:",
 815			 le32_to_cpu(ofdm->early_overrun_err),
 816			 accum_ofdm->early_overrun_err,
 817			 delta_ofdm->early_overrun_err,
 818			 max_ofdm->early_overrun_err);
 819	pos += scnprintf(buf + pos, bufsz - pos,
 820			 fmt_table, "crc32_good:",
 821			 le32_to_cpu(ofdm->crc32_good),
 822			 accum_ofdm->crc32_good, delta_ofdm->crc32_good,
 823			 max_ofdm->crc32_good);
 824	pos += scnprintf(buf + pos, bufsz - pos,
 825			 fmt_table, "false_alarm_cnt:",
 826			 le32_to_cpu(ofdm->false_alarm_cnt),
 827			 accum_ofdm->false_alarm_cnt,
 828			 delta_ofdm->false_alarm_cnt,
 829			 max_ofdm->false_alarm_cnt);
 830	pos += scnprintf(buf + pos, bufsz - pos,
 831			 fmt_table, "fina_sync_err_cnt:",
 832			 le32_to_cpu(ofdm->fina_sync_err_cnt),
 833			 accum_ofdm->fina_sync_err_cnt,
 834			 delta_ofdm->fina_sync_err_cnt,
 835			 max_ofdm->fina_sync_err_cnt);
 836	pos += scnprintf(buf + pos, bufsz - pos,
 837			 fmt_table, "sfd_timeout:",
 838			 le32_to_cpu(ofdm->sfd_timeout),
 839			 accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
 840			 max_ofdm->sfd_timeout);
 841	pos += scnprintf(buf + pos, bufsz - pos,
 842			 fmt_table, "fina_timeout:",
 843			 le32_to_cpu(ofdm->fina_timeout),
 844			 accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
 845			 max_ofdm->fina_timeout);
 846	pos += scnprintf(buf + pos, bufsz - pos,
 847			 fmt_table, "unresponded_rts:",
 848			 le32_to_cpu(ofdm->unresponded_rts),
 849			 accum_ofdm->unresponded_rts,
 850			 delta_ofdm->unresponded_rts,
 851			 max_ofdm->unresponded_rts);
 852	pos += scnprintf(buf + pos, bufsz - pos,
 853			 fmt_table, "rxe_frame_lmt_ovrun:",
 854			 le32_to_cpu(ofdm->rxe_frame_limit_overrun),
 855			 accum_ofdm->rxe_frame_limit_overrun,
 856			 delta_ofdm->rxe_frame_limit_overrun,
 857			 max_ofdm->rxe_frame_limit_overrun);
 858	pos += scnprintf(buf + pos, bufsz - pos,
 859			 fmt_table, "sent_ack_cnt:",
 860			 le32_to_cpu(ofdm->sent_ack_cnt),
 861			 accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
 862			 max_ofdm->sent_ack_cnt);
 863	pos += scnprintf(buf + pos, bufsz - pos,
 864			 fmt_table, "sent_cts_cnt:",
 865			 le32_to_cpu(ofdm->sent_cts_cnt),
 866			 accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
 867			 max_ofdm->sent_cts_cnt);
 868	pos += scnprintf(buf + pos, bufsz - pos,
 869			 fmt_table, "sent_ba_rsp_cnt:",
 870			 le32_to_cpu(ofdm->sent_ba_rsp_cnt),
 871			 accum_ofdm->sent_ba_rsp_cnt,
 872			 delta_ofdm->sent_ba_rsp_cnt,
 873			 max_ofdm->sent_ba_rsp_cnt);
 874	pos += scnprintf(buf + pos, bufsz - pos,
 875			 fmt_table, "dsp_self_kill:",
 876			 le32_to_cpu(ofdm->dsp_self_kill),
 877			 accum_ofdm->dsp_self_kill,
 878			 delta_ofdm->dsp_self_kill,
 879			 max_ofdm->dsp_self_kill);
 880	pos += scnprintf(buf + pos, bufsz - pos,
 881			 fmt_table, "mh_format_err:",
 882			 le32_to_cpu(ofdm->mh_format_err),
 883			 accum_ofdm->mh_format_err,
 884			 delta_ofdm->mh_format_err,
 885			 max_ofdm->mh_format_err);
 886	pos += scnprintf(buf + pos, bufsz - pos,
 887			 fmt_table, "re_acq_main_rssi_sum:",
 888			 le32_to_cpu(ofdm->re_acq_main_rssi_sum),
 889			 accum_ofdm->re_acq_main_rssi_sum,
 890			 delta_ofdm->re_acq_main_rssi_sum,
 891			 max_ofdm->re_acq_main_rssi_sum);
 892
 893	pos += scnprintf(buf + pos, bufsz - pos,
 894			 fmt_header, "Statistics_Rx - CCK:");
 895	pos += scnprintf(buf + pos, bufsz - pos,
 896			 fmt_table, "ina_cnt:",
 897			 le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
 898			 delta_cck->ina_cnt, max_cck->ina_cnt);
 899	pos += scnprintf(buf + pos, bufsz - pos,
 900			 fmt_table, "fina_cnt:",
 901			 le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
 902			 delta_cck->fina_cnt, max_cck->fina_cnt);
 903	pos += scnprintf(buf + pos, bufsz - pos,
 904			 fmt_table, "plcp_err:",
 905			 le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
 906			 delta_cck->plcp_err, max_cck->plcp_err);
 907	pos += scnprintf(buf + pos, bufsz - pos,
 908			 fmt_table, "crc32_err:",
 909			 le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
 910			 delta_cck->crc32_err, max_cck->crc32_err);
 911	pos += scnprintf(buf + pos, bufsz - pos,
 912			 fmt_table, "overrun_err:",
 913			 le32_to_cpu(cck->overrun_err),
 914			 accum_cck->overrun_err, delta_cck->overrun_err,
 915			 max_cck->overrun_err);
 916	pos += scnprintf(buf + pos, bufsz - pos,
 917			 fmt_table, "early_overrun_err:",
 918			 le32_to_cpu(cck->early_overrun_err),
 919			 accum_cck->early_overrun_err,
 920			 delta_cck->early_overrun_err,
 921			 max_cck->early_overrun_err);
 922	pos += scnprintf(buf + pos, bufsz - pos,
 923			 fmt_table, "crc32_good:",
 924			 le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
 925			 delta_cck->crc32_good, max_cck->crc32_good);
 926	pos += scnprintf(buf + pos, bufsz - pos,
 927			 fmt_table, "false_alarm_cnt:",
 928			 le32_to_cpu(cck->false_alarm_cnt),
 929			 accum_cck->false_alarm_cnt,
 930			 delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
 931	pos += scnprintf(buf + pos, bufsz - pos,
 932			 fmt_table, "fina_sync_err_cnt:",
 933			 le32_to_cpu(cck->fina_sync_err_cnt),
 934			 accum_cck->fina_sync_err_cnt,
 935			 delta_cck->fina_sync_err_cnt,
 936			 max_cck->fina_sync_err_cnt);
 937	pos += scnprintf(buf + pos, bufsz - pos,
 938			 fmt_table, "sfd_timeout:",
 939			 le32_to_cpu(cck->sfd_timeout),
 940			 accum_cck->sfd_timeout, delta_cck->sfd_timeout,
 941			 max_cck->sfd_timeout);
 942	pos += scnprintf(buf + pos, bufsz - pos,
 943			 fmt_table, "fina_timeout:",
 944			 le32_to_cpu(cck->fina_timeout),
 945			 accum_cck->fina_timeout, delta_cck->fina_timeout,
 946			 max_cck->fina_timeout);
 947	pos += scnprintf(buf + pos, bufsz - pos,
 948			 fmt_table, "unresponded_rts:",
 949			 le32_to_cpu(cck->unresponded_rts),
 950			 accum_cck->unresponded_rts, delta_cck->unresponded_rts,
 951			 max_cck->unresponded_rts);
 952	pos += scnprintf(buf + pos, bufsz - pos,
 953			 fmt_table, "rxe_frame_lmt_ovrun:",
 954			 le32_to_cpu(cck->rxe_frame_limit_overrun),
 955			 accum_cck->rxe_frame_limit_overrun,
 956			 delta_cck->rxe_frame_limit_overrun,
 957			 max_cck->rxe_frame_limit_overrun);
 958	pos += scnprintf(buf + pos, bufsz - pos,
 959			 fmt_table, "sent_ack_cnt:",
 960			 le32_to_cpu(cck->sent_ack_cnt),
 961			 accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
 962			 max_cck->sent_ack_cnt);
 963	pos += scnprintf(buf + pos, bufsz - pos,
 964			 fmt_table, "sent_cts_cnt:",
 965			 le32_to_cpu(cck->sent_cts_cnt),
 966			 accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
 967			 max_cck->sent_cts_cnt);
 968	pos += scnprintf(buf + pos, bufsz - pos,
 969			 fmt_table, "sent_ba_rsp_cnt:",
 970			 le32_to_cpu(cck->sent_ba_rsp_cnt),
 971			 accum_cck->sent_ba_rsp_cnt,
 972			 delta_cck->sent_ba_rsp_cnt,
 973			 max_cck->sent_ba_rsp_cnt);
 974	pos += scnprintf(buf + pos, bufsz - pos,
 975			 fmt_table, "dsp_self_kill:",
 976			 le32_to_cpu(cck->dsp_self_kill),
 977			 accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
 978			 max_cck->dsp_self_kill);
 979	pos += scnprintf(buf + pos, bufsz - pos,
 980			 fmt_table, "mh_format_err:",
 981			 le32_to_cpu(cck->mh_format_err),
 982			 accum_cck->mh_format_err, delta_cck->mh_format_err,
 983			 max_cck->mh_format_err);
 984	pos += scnprintf(buf + pos, bufsz - pos,
 985			 fmt_table, "re_acq_main_rssi_sum:",
 986			 le32_to_cpu(cck->re_acq_main_rssi_sum),
 987			 accum_cck->re_acq_main_rssi_sum,
 988			 delta_cck->re_acq_main_rssi_sum,
 989			 max_cck->re_acq_main_rssi_sum);
 990
 991	pos += scnprintf(buf + pos, bufsz - pos,
 992			 fmt_header, "Statistics_Rx - GENERAL:");
 993	pos += scnprintf(buf + pos, bufsz - pos,
 994			 fmt_table, "bogus_cts:",
 995			 le32_to_cpu(general->bogus_cts),
 996			 accum_general->bogus_cts, delta_general->bogus_cts,
 997			 max_general->bogus_cts);
 998	pos += scnprintf(buf + pos, bufsz - pos,
 999			 fmt_table, "bogus_ack:",
1000			 le32_to_cpu(general->bogus_ack),
1001			 accum_general->bogus_ack, delta_general->bogus_ack,
1002			 max_general->bogus_ack);
1003	pos += scnprintf(buf + pos, bufsz - pos,
1004			 fmt_table, "non_bssid_frames:",
1005			 le32_to_cpu(general->non_bssid_frames),
1006			 accum_general->non_bssid_frames,
1007			 delta_general->non_bssid_frames,
1008			 max_general->non_bssid_frames);
1009	pos += scnprintf(buf + pos, bufsz - pos,
1010			 fmt_table, "filtered_frames:",
1011			 le32_to_cpu(general->filtered_frames),
1012			 accum_general->filtered_frames,
1013			 delta_general->filtered_frames,
1014			 max_general->filtered_frames);
1015	pos += scnprintf(buf + pos, bufsz - pos,
1016			 fmt_table, "non_channel_beacons:",
1017			 le32_to_cpu(general->non_channel_beacons),
1018			 accum_general->non_channel_beacons,
1019			 delta_general->non_channel_beacons,
1020			 max_general->non_channel_beacons);
1021	pos += scnprintf(buf + pos, bufsz - pos,
1022			 fmt_table, "channel_beacons:",
1023			 le32_to_cpu(general->channel_beacons),
1024			 accum_general->channel_beacons,
1025			 delta_general->channel_beacons,
1026			 max_general->channel_beacons);
1027	pos += scnprintf(buf + pos, bufsz - pos,
1028			 fmt_table, "num_missed_bcon:",
1029			 le32_to_cpu(general->num_missed_bcon),
1030			 accum_general->num_missed_bcon,
1031			 delta_general->num_missed_bcon,
1032			 max_general->num_missed_bcon);
1033	pos += scnprintf(buf + pos, bufsz - pos,
1034			 fmt_table, "adc_rx_saturation_time:",
1035			 le32_to_cpu(general->adc_rx_saturation_time),
1036			 accum_general->adc_rx_saturation_time,
1037			 delta_general->adc_rx_saturation_time,
1038			 max_general->adc_rx_saturation_time);
1039	pos += scnprintf(buf + pos, bufsz - pos,
1040			 fmt_table, "ina_detect_search_tm:",
1041			 le32_to_cpu(general->ina_detection_search_time),
1042			 accum_general->ina_detection_search_time,
1043			 delta_general->ina_detection_search_time,
1044			 max_general->ina_detection_search_time);
1045	pos += scnprintf(buf + pos, bufsz - pos,
1046			 fmt_table, "beacon_silence_rssi_a:",
1047			 le32_to_cpu(general->beacon_silence_rssi_a),
1048			 accum_general->beacon_silence_rssi_a,
1049			 delta_general->beacon_silence_rssi_a,
1050			 max_general->beacon_silence_rssi_a);
1051	pos += scnprintf(buf + pos, bufsz - pos,
1052			 fmt_table, "beacon_silence_rssi_b:",
1053			 le32_to_cpu(general->beacon_silence_rssi_b),
1054			 accum_general->beacon_silence_rssi_b,
1055			 delta_general->beacon_silence_rssi_b,
1056			 max_general->beacon_silence_rssi_b);
1057	pos += scnprintf(buf + pos, bufsz - pos,
1058			 fmt_table, "beacon_silence_rssi_c:",
1059			 le32_to_cpu(general->beacon_silence_rssi_c),
1060			 accum_general->beacon_silence_rssi_c,
1061			 delta_general->beacon_silence_rssi_c,
1062			 max_general->beacon_silence_rssi_c);
1063	pos += scnprintf(buf + pos, bufsz - pos,
1064			 fmt_table, "interference_data_flag:",
1065			 le32_to_cpu(general->interference_data_flag),
1066			 accum_general->interference_data_flag,
1067			 delta_general->interference_data_flag,
1068			 max_general->interference_data_flag);
1069	pos += scnprintf(buf + pos, bufsz - pos,
1070			 fmt_table, "channel_load:",
1071			 le32_to_cpu(general->channel_load),
1072			 accum_general->channel_load,
1073			 delta_general->channel_load,
1074			 max_general->channel_load);
1075	pos += scnprintf(buf + pos, bufsz - pos,
1076			 fmt_table, "dsp_false_alarms:",
1077			 le32_to_cpu(general->dsp_false_alarms),
1078			 accum_general->dsp_false_alarms,
1079			 delta_general->dsp_false_alarms,
1080			 max_general->dsp_false_alarms);
1081	pos += scnprintf(buf + pos, bufsz - pos,
1082			 fmt_table, "beacon_rssi_a:",
1083			 le32_to_cpu(general->beacon_rssi_a),
1084			 accum_general->beacon_rssi_a,
1085			 delta_general->beacon_rssi_a,
1086			 max_general->beacon_rssi_a);
1087	pos += scnprintf(buf + pos, bufsz - pos,
1088			 fmt_table, "beacon_rssi_b:",
1089			 le32_to_cpu(general->beacon_rssi_b),
1090			 accum_general->beacon_rssi_b,
1091			 delta_general->beacon_rssi_b,
1092			 max_general->beacon_rssi_b);
1093	pos += scnprintf(buf + pos, bufsz - pos,
1094			 fmt_table, "beacon_rssi_c:",
1095			 le32_to_cpu(general->beacon_rssi_c),
1096			 accum_general->beacon_rssi_c,
1097			 delta_general->beacon_rssi_c,
1098			 max_general->beacon_rssi_c);
1099	pos += scnprintf(buf + pos, bufsz - pos,
1100			 fmt_table, "beacon_energy_a:",
1101			 le32_to_cpu(general->beacon_energy_a),
1102			 accum_general->beacon_energy_a,
1103			 delta_general->beacon_energy_a,
1104			 max_general->beacon_energy_a);
1105	pos += scnprintf(buf + pos, bufsz - pos,
1106			 fmt_table, "beacon_energy_b:",
1107			 le32_to_cpu(general->beacon_energy_b),
1108			 accum_general->beacon_energy_b,
1109			 delta_general->beacon_energy_b,
1110			 max_general->beacon_energy_b);
1111	pos += scnprintf(buf + pos, bufsz - pos,
1112			 fmt_table, "beacon_energy_c:",
1113			 le32_to_cpu(general->beacon_energy_c),
1114			 accum_general->beacon_energy_c,
1115			 delta_general->beacon_energy_c,
1116			 max_general->beacon_energy_c);
1117
1118	pos += scnprintf(buf + pos, bufsz - pos,
1119			 fmt_header, "Statistics_Rx - OFDM_HT:");
1120	pos += scnprintf(buf + pos, bufsz - pos,
1121			 fmt_table, "plcp_err:",
1122			 le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1123			 delta_ht->plcp_err, max_ht->plcp_err);
1124	pos += scnprintf(buf + pos, bufsz - pos,
1125			 fmt_table, "overrun_err:",
1126			 le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1127			 delta_ht->overrun_err, max_ht->overrun_err);
1128	pos += scnprintf(buf + pos, bufsz - pos,
1129			 fmt_table, "early_overrun_err:",
1130			 le32_to_cpu(ht->early_overrun_err),
1131			 accum_ht->early_overrun_err,
1132			 delta_ht->early_overrun_err,
1133			 max_ht->early_overrun_err);
1134	pos += scnprintf(buf + pos, bufsz - pos,
1135			 fmt_table, "crc32_good:",
1136			 le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1137			 delta_ht->crc32_good, max_ht->crc32_good);
1138	pos += scnprintf(buf + pos, bufsz - pos,
1139			 fmt_table, "crc32_err:",
1140			 le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1141			 delta_ht->crc32_err, max_ht->crc32_err);
1142	pos += scnprintf(buf + pos, bufsz - pos,
1143			 fmt_table, "mh_format_err:",
1144			 le32_to_cpu(ht->mh_format_err),
1145			 accum_ht->mh_format_err,
1146			 delta_ht->mh_format_err, max_ht->mh_format_err);
1147	pos += scnprintf(buf + pos, bufsz - pos,
1148			 fmt_table, "agg_crc32_good:",
1149			 le32_to_cpu(ht->agg_crc32_good),
1150			 accum_ht->agg_crc32_good,
1151			 delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1152	pos += scnprintf(buf + pos, bufsz - pos,
1153			 fmt_table, "agg_mpdu_cnt:",
1154			 le32_to_cpu(ht->agg_mpdu_cnt),
1155			 accum_ht->agg_mpdu_cnt,
1156			 delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1157	pos += scnprintf(buf + pos, bufsz - pos,
1158			 fmt_table, "agg_cnt:",
1159			 le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1160			 delta_ht->agg_cnt, max_ht->agg_cnt);
1161	pos += scnprintf(buf + pos, bufsz - pos,
1162			 fmt_table, "unsupport_mcs:",
1163			 le32_to_cpu(ht->unsupport_mcs),
1164			 accum_ht->unsupport_mcs,
1165			 delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1166
1167	spin_unlock_bh(&priv->statistics.lock);
1168
1169	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1170	kfree(buf);
1171	return ret;
1172}
1173
1174static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1175					char __user *user_buf,
1176					size_t count, loff_t *ppos)
1177{
1178	struct iwl_priv *priv = file->private_data;
1179	int pos = 0;
1180	char *buf;
1181	int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1182	ssize_t ret;
1183	struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1184
1185	if (!iwl_is_alive(priv))
1186		return -EAGAIN;
1187
1188	buf = kzalloc(bufsz, GFP_KERNEL);
1189	if (!buf)
1190		return -ENOMEM;
1191
1192	/* the statistic information display here is based on
1193	 * the last statistics notification from uCode
1194	 * might not reflect the current uCode activity
1195	 */
1196	spin_lock_bh(&priv->statistics.lock);
1197
1198	tx = &priv->statistics.tx;
1199	accum_tx = &priv->accum_stats.tx;
1200	delta_tx = &priv->delta_stats.tx;
1201	max_tx = &priv->max_delta_stats.tx;
1202
1203	pos += iwl_statistics_flag(priv, buf, bufsz);
1204	pos += scnprintf(buf + pos, bufsz - pos,
1205			 fmt_header, "Statistics_Tx:");
1206	pos += scnprintf(buf + pos, bufsz - pos,
1207			 fmt_table, "preamble:",
1208			 le32_to_cpu(tx->preamble_cnt),
1209			 accum_tx->preamble_cnt,
1210			 delta_tx->preamble_cnt, max_tx->preamble_cnt);
1211	pos += scnprintf(buf + pos, bufsz - pos,
1212			 fmt_table, "rx_detected_cnt:",
1213			 le32_to_cpu(tx->rx_detected_cnt),
1214			 accum_tx->rx_detected_cnt,
1215			 delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1216	pos += scnprintf(buf + pos, bufsz - pos,
1217			 fmt_table, "bt_prio_defer_cnt:",
1218			 le32_to_cpu(tx->bt_prio_defer_cnt),
1219			 accum_tx->bt_prio_defer_cnt,
1220			 delta_tx->bt_prio_defer_cnt,
1221			 max_tx->bt_prio_defer_cnt);
1222	pos += scnprintf(buf + pos, bufsz - pos,
1223			 fmt_table, "bt_prio_kill_cnt:",
1224			 le32_to_cpu(tx->bt_prio_kill_cnt),
1225			 accum_tx->bt_prio_kill_cnt,
1226			 delta_tx->bt_prio_kill_cnt,
1227			 max_tx->bt_prio_kill_cnt);
1228	pos += scnprintf(buf + pos, bufsz - pos,
1229			 fmt_table, "few_bytes_cnt:",
1230			 le32_to_cpu(tx->few_bytes_cnt),
1231			 accum_tx->few_bytes_cnt,
1232			 delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1233	pos += scnprintf(buf + pos, bufsz - pos,
1234			 fmt_table, "cts_timeout:",
1235			 le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1236			 delta_tx->cts_timeout, max_tx->cts_timeout);
1237	pos += scnprintf(buf + pos, bufsz - pos,
1238			 fmt_table, "ack_timeout:",
1239			 le32_to_cpu(tx->ack_timeout),
1240			 accum_tx->ack_timeout,
1241			 delta_tx->ack_timeout, max_tx->ack_timeout);
1242	pos += scnprintf(buf + pos, bufsz - pos,
1243			 fmt_table, "expected_ack_cnt:",
1244			 le32_to_cpu(tx->expected_ack_cnt),
1245			 accum_tx->expected_ack_cnt,
1246			 delta_tx->expected_ack_cnt,
1247			 max_tx->expected_ack_cnt);
1248	pos += scnprintf(buf + pos, bufsz - pos,
1249			 fmt_table, "actual_ack_cnt:",
1250			 le32_to_cpu(tx->actual_ack_cnt),
1251			 accum_tx->actual_ack_cnt,
1252			 delta_tx->actual_ack_cnt,
1253			 max_tx->actual_ack_cnt);
1254	pos += scnprintf(buf + pos, bufsz - pos,
1255			 fmt_table, "dump_msdu_cnt:",
1256			 le32_to_cpu(tx->dump_msdu_cnt),
1257			 accum_tx->dump_msdu_cnt,
1258			 delta_tx->dump_msdu_cnt,
1259			 max_tx->dump_msdu_cnt);
1260	pos += scnprintf(buf + pos, bufsz - pos,
1261			 fmt_table, "abort_nxt_frame_mismatch:",
1262			 le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1263			 accum_tx->burst_abort_next_frame_mismatch_cnt,
1264			 delta_tx->burst_abort_next_frame_mismatch_cnt,
1265			 max_tx->burst_abort_next_frame_mismatch_cnt);
1266	pos += scnprintf(buf + pos, bufsz - pos,
1267			 fmt_table, "abort_missing_nxt_frame:",
1268			 le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1269			 accum_tx->burst_abort_missing_next_frame_cnt,
1270			 delta_tx->burst_abort_missing_next_frame_cnt,
1271			 max_tx->burst_abort_missing_next_frame_cnt);
1272	pos += scnprintf(buf + pos, bufsz - pos,
1273			 fmt_table, "cts_timeout_collision:",
1274			 le32_to_cpu(tx->cts_timeout_collision),
1275			 accum_tx->cts_timeout_collision,
1276			 delta_tx->cts_timeout_collision,
1277			 max_tx->cts_timeout_collision);
1278	pos += scnprintf(buf + pos, bufsz - pos,
1279			 fmt_table, "ack_ba_timeout_collision:",
1280			 le32_to_cpu(tx->ack_or_ba_timeout_collision),
1281			 accum_tx->ack_or_ba_timeout_collision,
1282			 delta_tx->ack_or_ba_timeout_collision,
1283			 max_tx->ack_or_ba_timeout_collision);
1284	pos += scnprintf(buf + pos, bufsz - pos,
1285			 fmt_table, "agg ba_timeout:",
1286			 le32_to_cpu(tx->agg.ba_timeout),
1287			 accum_tx->agg.ba_timeout,
1288			 delta_tx->agg.ba_timeout,
1289			 max_tx->agg.ba_timeout);
1290	pos += scnprintf(buf + pos, bufsz - pos,
1291			 fmt_table, "agg ba_resched_frames:",
1292			 le32_to_cpu(tx->agg.ba_reschedule_frames),
1293			 accum_tx->agg.ba_reschedule_frames,
1294			 delta_tx->agg.ba_reschedule_frames,
1295			 max_tx->agg.ba_reschedule_frames);
1296	pos += scnprintf(buf + pos, bufsz - pos,
1297			 fmt_table, "agg scd_query_agg_frame:",
1298			 le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1299			 accum_tx->agg.scd_query_agg_frame_cnt,
1300			 delta_tx->agg.scd_query_agg_frame_cnt,
1301			 max_tx->agg.scd_query_agg_frame_cnt);
1302	pos += scnprintf(buf + pos, bufsz - pos,
1303			 fmt_table, "agg scd_query_no_agg:",
1304			 le32_to_cpu(tx->agg.scd_query_no_agg),
1305			 accum_tx->agg.scd_query_no_agg,
1306			 delta_tx->agg.scd_query_no_agg,
1307			 max_tx->agg.scd_query_no_agg);
1308	pos += scnprintf(buf + pos, bufsz - pos,
1309			 fmt_table, "agg scd_query_agg:",
1310			 le32_to_cpu(tx->agg.scd_query_agg),
1311			 accum_tx->agg.scd_query_agg,
1312			 delta_tx->agg.scd_query_agg,
1313			 max_tx->agg.scd_query_agg);
1314	pos += scnprintf(buf + pos, bufsz - pos,
1315			 fmt_table, "agg scd_query_mismatch:",
1316			 le32_to_cpu(tx->agg.scd_query_mismatch),
1317			 accum_tx->agg.scd_query_mismatch,
1318			 delta_tx->agg.scd_query_mismatch,
1319			 max_tx->agg.scd_query_mismatch);
1320	pos += scnprintf(buf + pos, bufsz - pos,
1321			 fmt_table, "agg frame_not_ready:",
1322			 le32_to_cpu(tx->agg.frame_not_ready),
1323			 accum_tx->agg.frame_not_ready,
1324			 delta_tx->agg.frame_not_ready,
1325			 max_tx->agg.frame_not_ready);
1326	pos += scnprintf(buf + pos, bufsz - pos,
1327			 fmt_table, "agg underrun:",
1328			 le32_to_cpu(tx->agg.underrun),
1329			 accum_tx->agg.underrun,
1330			 delta_tx->agg.underrun, max_tx->agg.underrun);
1331	pos += scnprintf(buf + pos, bufsz - pos,
1332			 fmt_table, "agg bt_prio_kill:",
1333			 le32_to_cpu(tx->agg.bt_prio_kill),
1334			 accum_tx->agg.bt_prio_kill,
1335			 delta_tx->agg.bt_prio_kill,
1336			 max_tx->agg.bt_prio_kill);
1337	pos += scnprintf(buf + pos, bufsz - pos,
1338			 fmt_table, "agg rx_ba_rsp_cnt:",
1339			 le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1340			 accum_tx->agg.rx_ba_rsp_cnt,
1341			 delta_tx->agg.rx_ba_rsp_cnt,
1342			 max_tx->agg.rx_ba_rsp_cnt);
1343
1344	if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
1345		pos += scnprintf(buf + pos, bufsz - pos,
1346			"tx power: (1/2 dB step)\n");
1347		if ((priv->hw_params.valid_tx_ant & ANT_A) &&
1348		    tx->tx_power.ant_a)
1349			pos += scnprintf(buf + pos, bufsz - pos,
1350					fmt_hex, "antenna A:",
1351					tx->tx_power.ant_a);
1352		if ((priv->hw_params.valid_tx_ant & ANT_B) &&
1353		    tx->tx_power.ant_b)
1354			pos += scnprintf(buf + pos, bufsz - pos,
1355					fmt_hex, "antenna B:",
1356					tx->tx_power.ant_b);
1357		if ((priv->hw_params.valid_tx_ant & ANT_C) &&
1358		    tx->tx_power.ant_c)
1359			pos += scnprintf(buf + pos, bufsz - pos,
1360					fmt_hex, "antenna C:",
1361					tx->tx_power.ant_c);
1362	}
1363
1364	spin_unlock_bh(&priv->statistics.lock);
1365
1366	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1367	kfree(buf);
1368	return ret;
1369}
1370
1371static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1372					char __user *user_buf,
1373					size_t count, loff_t *ppos)
1374{
1375	struct iwl_priv *priv = file->private_data;
1376	int pos = 0;
1377	char *buf;
1378	int bufsz = sizeof(struct statistics_general) * 10 + 300;
1379	ssize_t ret;
1380	struct statistics_general_common *general, *accum_general;
1381	struct statistics_general_common *delta_general, *max_general;
1382	struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1383	struct statistics_div *div, *accum_div, *delta_div, *max_div;
1384
1385	if (!iwl_is_alive(priv))
1386		return -EAGAIN;
1387
1388	buf = kzalloc(bufsz, GFP_KERNEL);
1389	if (!buf)
1390		return -ENOMEM;
1391
1392	/* the statistic information display here is based on
1393	 * the last statistics notification from uCode
1394	 * might not reflect the current uCode activity
1395	 */
1396
1397	spin_lock_bh(&priv->statistics.lock);
1398
1399	general = &priv->statistics.common;
1400	dbg = &priv->statistics.common.dbg;
1401	div = &priv->statistics.common.div;
1402	accum_general = &priv->accum_stats.common;
1403	accum_dbg = &priv->accum_stats.common.dbg;
1404	accum_div = &priv->accum_stats.common.div;
1405	delta_general = &priv->delta_stats.common;
1406	max_general = &priv->max_delta_stats.common;
1407	delta_dbg = &priv->delta_stats.common.dbg;
1408	max_dbg = &priv->max_delta_stats.common.dbg;
1409	delta_div = &priv->delta_stats.common.div;
1410	max_div = &priv->max_delta_stats.common.div;
1411
1412	pos += iwl_statistics_flag(priv, buf, bufsz);
1413	pos += scnprintf(buf + pos, bufsz - pos,
1414			 fmt_header, "Statistics_General:");
1415	pos += scnprintf(buf + pos, bufsz - pos,
1416			 fmt_value, "temperature:",
1417			 le32_to_cpu(general->temperature));
1418	pos += scnprintf(buf + pos, bufsz - pos,
1419			 fmt_value, "temperature_m:",
1420			 le32_to_cpu(general->temperature_m));
1421	pos += scnprintf(buf + pos, bufsz - pos,
1422			 fmt_value, "ttl_timestamp:",
1423			 le32_to_cpu(general->ttl_timestamp));
1424	pos += scnprintf(buf + pos, bufsz - pos,
1425			 fmt_table, "burst_check:",
1426			 le32_to_cpu(dbg->burst_check),
1427			 accum_dbg->burst_check,
1428			 delta_dbg->burst_check, max_dbg->burst_check);
1429	pos += scnprintf(buf + pos, bufsz - pos,
1430			 fmt_table, "burst_count:",
1431			 le32_to_cpu(dbg->burst_count),
1432			 accum_dbg->burst_count,
1433			 delta_dbg->burst_count, max_dbg->burst_count);
1434	pos += scnprintf(buf + pos, bufsz - pos,
1435			 fmt_table, "wait_for_silence_timeout_count:",
1436			 le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
1437			 accum_dbg->wait_for_silence_timeout_cnt,
1438			 delta_dbg->wait_for_silence_timeout_cnt,
1439			 max_dbg->wait_for_silence_timeout_cnt);
1440	pos += scnprintf(buf + pos, bufsz - pos,
1441			 fmt_table, "sleep_time:",
1442			 le32_to_cpu(general->sleep_time),
1443			 accum_general->sleep_time,
1444			 delta_general->sleep_time, max_general->sleep_time);
1445	pos += scnprintf(buf + pos, bufsz - pos,
1446			 fmt_table, "slots_out:",
1447			 le32_to_cpu(general->slots_out),
1448			 accum_general->slots_out,
1449			 delta_general->slots_out, max_general->slots_out);
1450	pos += scnprintf(buf + pos, bufsz - pos,
1451			 fmt_table, "slots_idle:",
1452			 le32_to_cpu(general->slots_idle),
1453			 accum_general->slots_idle,
1454			 delta_general->slots_idle, max_general->slots_idle);
1455	pos += scnprintf(buf + pos, bufsz - pos,
1456			 fmt_table, "tx_on_a:",
1457			 le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1458			 delta_div->tx_on_a, max_div->tx_on_a);
1459	pos += scnprintf(buf + pos, bufsz - pos,
1460			 fmt_table, "tx_on_b:",
1461			 le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1462			 delta_div->tx_on_b, max_div->tx_on_b);
1463	pos += scnprintf(buf + pos, bufsz - pos,
1464			 fmt_table, "exec_time:",
1465			 le32_to_cpu(div->exec_time), accum_div->exec_time,
1466			 delta_div->exec_time, max_div->exec_time);
1467	pos += scnprintf(buf + pos, bufsz - pos,
1468			 fmt_table, "probe_time:",
1469			 le32_to_cpu(div->probe_time), accum_div->probe_time,
1470			 delta_div->probe_time, max_div->probe_time);
1471	pos += scnprintf(buf + pos, bufsz - pos,
1472			 fmt_table, "rx_enable_counter:",
1473			 le32_to_cpu(general->rx_enable_counter),
1474			 accum_general->rx_enable_counter,
1475			 delta_general->rx_enable_counter,
1476			 max_general->rx_enable_counter);
1477	pos += scnprintf(buf + pos, bufsz - pos,
1478			 fmt_table, "num_of_sos_states:",
1479			 le32_to_cpu(general->num_of_sos_states),
1480			 accum_general->num_of_sos_states,
1481			 delta_general->num_of_sos_states,
1482			 max_general->num_of_sos_states);
1483
1484	spin_unlock_bh(&priv->statistics.lock);
1485
1486	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1487	kfree(buf);
1488	return ret;
1489}
1490
1491static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1492					char __user *user_buf,
1493					size_t count, loff_t *ppos)
1494{
1495	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1496	int pos = 0;
1497	char *buf;
1498	int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
1499	ssize_t ret;
1500	struct statistics_bt_activity *bt, *accum_bt;
1501
1502	if (!iwl_is_alive(priv))
1503		return -EAGAIN;
1504
1505	if (!priv->bt_enable_flag)
1506		return -EINVAL;
1507
1508	/* make request to uCode to retrieve statistics information */
1509	mutex_lock(&priv->mutex);
1510	ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
1511	mutex_unlock(&priv->mutex);
1512
1513	if (ret)
1514		return -EAGAIN;
1515	buf = kzalloc(bufsz, GFP_KERNEL);
1516	if (!buf)
1517		return -ENOMEM;
1518
1519	/*
1520	 * the statistic information display here is based on
1521	 * the last statistics notification from uCode
1522	 * might not reflect the current uCode activity
1523	 */
1524
1525	spin_lock_bh(&priv->statistics.lock);
1526
1527	bt = &priv->statistics.bt_activity;
1528	accum_bt = &priv->accum_stats.bt_activity;
1529
1530	pos += iwl_statistics_flag(priv, buf, bufsz);
1531	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
1532	pos += scnprintf(buf + pos, bufsz - pos,
1533			"\t\t\tcurrent\t\t\taccumulative\n");
1534	pos += scnprintf(buf + pos, bufsz - pos,
1535			 "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1536			 le32_to_cpu(bt->hi_priority_tx_req_cnt),
1537			 accum_bt->hi_priority_tx_req_cnt);
1538	pos += scnprintf(buf + pos, bufsz - pos,
1539			 "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1540			 le32_to_cpu(bt->hi_priority_tx_denied_cnt),
1541			 accum_bt->hi_priority_tx_denied_cnt);
1542	pos += scnprintf(buf + pos, bufsz - pos,
1543			 "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1544			 le32_to_cpu(bt->lo_priority_tx_req_cnt),
1545			 accum_bt->lo_priority_tx_req_cnt);
1546	pos += scnprintf(buf + pos, bufsz - pos,
1547			 "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1548			 le32_to_cpu(bt->lo_priority_tx_denied_cnt),
1549			 accum_bt->lo_priority_tx_denied_cnt);
1550	pos += scnprintf(buf + pos, bufsz - pos,
1551			 "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1552			 le32_to_cpu(bt->hi_priority_rx_req_cnt),
1553			 accum_bt->hi_priority_rx_req_cnt);
1554	pos += scnprintf(buf + pos, bufsz - pos,
1555			 "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1556			 le32_to_cpu(bt->hi_priority_rx_denied_cnt),
1557			 accum_bt->hi_priority_rx_denied_cnt);
1558	pos += scnprintf(buf + pos, bufsz - pos,
1559			 "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1560			 le32_to_cpu(bt->lo_priority_rx_req_cnt),
1561			 accum_bt->lo_priority_rx_req_cnt);
1562	pos += scnprintf(buf + pos, bufsz - pos,
1563			 "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1564			 le32_to_cpu(bt->lo_priority_rx_denied_cnt),
1565			 accum_bt->lo_priority_rx_denied_cnt);
1566
1567	pos += scnprintf(buf + pos, bufsz - pos,
1568			 "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
1569			 le32_to_cpu(priv->statistics.num_bt_kills),
1570			 priv->statistics.accum_num_bt_kills);
1571
1572	spin_unlock_bh(&priv->statistics.lock);
1573
1574	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1575	kfree(buf);
1576	return ret;
1577}
1578
1579static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1580					char __user *user_buf,
1581					size_t count, loff_t *ppos)
1582{
1583	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1584	int pos = 0;
1585	char *buf;
1586	int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
1587		(sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
1588	ssize_t ret;
1589
1590	if (!iwl_is_alive(priv))
1591		return -EAGAIN;
1592
1593	buf = kzalloc(bufsz, GFP_KERNEL);
1594	if (!buf)
1595		return -ENOMEM;
1596
1597	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
1598	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
1599			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1600			 priv->reply_tx_stats.pp_delay);
1601	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1602			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1603			 priv->reply_tx_stats.pp_few_bytes);
1604	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1605			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1606			 priv->reply_tx_stats.pp_bt_prio);
1607	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1608			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1609			 priv->reply_tx_stats.pp_quiet_period);
1610	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1611			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1612			 priv->reply_tx_stats.pp_calc_ttak);
1613	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1614			 iwl_get_tx_fail_reason(
1615				TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1616			 priv->reply_tx_stats.int_crossed_retry);
1617	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1618			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1619			 priv->reply_tx_stats.short_limit);
1620	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1621			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1622			 priv->reply_tx_stats.long_limit);
1623	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1624			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1625			 priv->reply_tx_stats.fifo_underrun);
1626	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1627			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1628			 priv->reply_tx_stats.drain_flow);
1629	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1630			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1631			 priv->reply_tx_stats.rfkill_flush);
1632	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1633			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1634			 priv->reply_tx_stats.life_expire);
1635	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1636			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1637			 priv->reply_tx_stats.dest_ps);
1638	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1639			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1640			 priv->reply_tx_stats.host_abort);
1641	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1642			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1643			 priv->reply_tx_stats.pp_delay);
1644	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1645			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1646			 priv->reply_tx_stats.sta_invalid);
1647	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1648			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1649			 priv->reply_tx_stats.frag_drop);
1650	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1651			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1652			 priv->reply_tx_stats.tid_disable);
1653	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1654			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1655			 priv->reply_tx_stats.fifo_flush);
1656	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1657			 iwl_get_tx_fail_reason(
1658				TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1659			 priv->reply_tx_stats.insuff_cf_poll);
1660	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1661			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1662			 priv->reply_tx_stats.fail_hw_drop);
1663	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1664			 iwl_get_tx_fail_reason(
1665				TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1666			 priv->reply_tx_stats.sta_color_mismatch);
1667	pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1668			 priv->reply_tx_stats.unknown);
1669
1670	pos += scnprintf(buf + pos, bufsz - pos,
1671			 "\nStatistics_Agg_TX_Error:\n");
1672
1673	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1674			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1675			 priv->reply_agg_tx_stats.underrun);
1676	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1677			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1678			 priv->reply_agg_tx_stats.bt_prio);
1679	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1680			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1681			 priv->reply_agg_tx_stats.few_bytes);
1682	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1683			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
1684			 priv->reply_agg_tx_stats.abort);
1685	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1686			 iwl_get_agg_tx_fail_reason(
1687				AGG_TX_STATE_LAST_SENT_TTL_MSK),
1688			 priv->reply_agg_tx_stats.last_sent_ttl);
1689	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1690			 iwl_get_agg_tx_fail_reason(
1691				AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK),
1692			 priv->reply_agg_tx_stats.last_sent_try);
1693	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1694			 iwl_get_agg_tx_fail_reason(
1695				AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
1696			 priv->reply_agg_tx_stats.last_sent_bt_kill);
1697	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1698			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
1699			 priv->reply_agg_tx_stats.scd_query);
1700	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1701			 iwl_get_agg_tx_fail_reason(
1702				AGG_TX_STATE_TEST_BAD_CRC32_MSK),
1703			 priv->reply_agg_tx_stats.bad_crc32);
1704	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1705			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
1706			 priv->reply_agg_tx_stats.response);
1707	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1708			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
1709			 priv->reply_agg_tx_stats.dump_tx);
1710	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1711			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
1712			 priv->reply_agg_tx_stats.delay_tx);
1713	pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1714			 priv->reply_agg_tx_stats.unknown);
1715
1716	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1717	kfree(buf);
1718	return ret;
1719}
1720
1721static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1722					char __user *user_buf,
1723					size_t count, loff_t *ppos) {
1724
1725	struct iwl_priv *priv = file->private_data;
1726	int pos = 0;
1727	int cnt = 0;
1728	char *buf;
1729	int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1730	ssize_t ret;
1731	struct iwl_sensitivity_data *data;
1732
1733	data = &priv->sensitivity_data;
1734	buf = kzalloc(bufsz, GFP_KERNEL);
1735	if (!buf)
1736		return -ENOMEM;
1737
1738	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1739			data->auto_corr_ofdm);
1740	pos += scnprintf(buf + pos, bufsz - pos,
1741			"auto_corr_ofdm_mrc:\t\t %u\n",
1742			data->auto_corr_ofdm_mrc);
1743	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1744			data->auto_corr_ofdm_x1);
1745	pos += scnprintf(buf + pos, bufsz - pos,
1746			"auto_corr_ofdm_mrc_x1:\t\t %u\n",
1747			data->auto_corr_ofdm_mrc_x1);
1748	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1749			data->auto_corr_cck);
1750	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1751			data->auto_corr_cck_mrc);
1752	pos += scnprintf(buf + pos, bufsz - pos,
1753			"last_bad_plcp_cnt_ofdm:\t\t %u\n",
1754			data->last_bad_plcp_cnt_ofdm);
1755	pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1756			data->last_fa_cnt_ofdm);
1757	pos += scnprintf(buf + pos, bufsz - pos,
1758			"last_bad_plcp_cnt_cck:\t\t %u\n",
1759			data->last_bad_plcp_cnt_cck);
1760	pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1761			data->last_fa_cnt_cck);
1762	pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1763			data->nrg_curr_state);
1764	pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1765			data->nrg_prev_state);
1766	pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1767	for (cnt = 0; cnt < 10; cnt++) {
1768		pos += scnprintf(buf + pos, bufsz - pos, " %u",
1769				data->nrg_value[cnt]);
1770	}
1771	pos += scnprintf(buf + pos, bufsz - pos, "\n");
1772	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1773	for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1774		pos += scnprintf(buf + pos, bufsz - pos, " %u",
1775				data->nrg_silence_rssi[cnt]);
1776	}
1777	pos += scnprintf(buf + pos, bufsz - pos, "\n");
1778	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1779			data->nrg_silence_ref);
1780	pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1781			data->nrg_energy_idx);
1782	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1783			data->nrg_silence_idx);
1784	pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1785			data->nrg_th_cck);
1786	pos += scnprintf(buf + pos, bufsz - pos,
1787			"nrg_auto_corr_silence_diff:\t %u\n",
1788			data->nrg_auto_corr_silence_diff);
1789	pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1790			data->num_in_cck_no_fa);
1791	pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1792			data->nrg_th_ofdm);
1793
1794	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1795	kfree(buf);
1796	return ret;
1797}
1798
1799
1800static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1801					char __user *user_buf,
1802					size_t count, loff_t *ppos) {
1803
1804	struct iwl_priv *priv = file->private_data;
1805	int pos = 0;
1806	int cnt = 0;
1807	char *buf;
1808	int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1809	ssize_t ret;
1810	struct iwl_chain_noise_data *data;
1811
1812	data = &priv->chain_noise_data;
1813	buf = kzalloc(bufsz, GFP_KERNEL);
1814	if (!buf)
1815		return -ENOMEM;
1816
1817	pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1818			data->active_chains);
1819	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1820			data->chain_noise_a);
1821	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1822			data->chain_noise_b);
1823	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1824			data->chain_noise_c);
1825	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1826			data->chain_signal_a);
1827	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1828			data->chain_signal_b);
1829	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1830			data->chain_signal_c);
1831	pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1832			data->beacon_count);
1833
1834	pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1835	for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1836		pos += scnprintf(buf + pos, bufsz - pos, " %u",
1837				data->disconn_array[cnt]);
1838	}
1839	pos += scnprintf(buf + pos, bufsz - pos, "\n");
1840	pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1841	for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1842		pos += scnprintf(buf + pos, bufsz - pos, " %u",
1843				data->delta_gain_code[cnt]);
1844	}
1845	pos += scnprintf(buf + pos, bufsz - pos, "\n");
1846	pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1847			data->radio_write);
1848	pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1849			data->state);
1850
1851	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1852	kfree(buf);
1853	return ret;
1854}
1855
1856static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1857						    char __user *user_buf,
1858						    size_t count, loff_t *ppos)
1859{
1860	struct iwl_priv *priv = file->private_data;
1861	char buf[60];
1862	int pos = 0;
1863	const size_t bufsz = sizeof(buf);
1864	u32 pwrsave_status;
1865
1866	pwrsave_status = iwl_read32(priv->trans, CSR_GP_CNTRL) &
1867			CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1868
1869	pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1870	pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1871		(pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1872		(pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1873		(pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1874		"error");
1875
1876	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1877}
1878
1879static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1880					 const char __user *user_buf,
1881					 size_t count, loff_t *ppos)
1882{
1883	struct iwl_priv *priv = file->private_data;
1884	char buf[8];
1885	int buf_size;
1886	int clear;
1887
1888	memset(buf, 0, sizeof(buf));
1889	buf_size = min(count, sizeof(buf) -  1);
1890	if (copy_from_user(buf, user_buf, buf_size))
1891		return -EFAULT;
1892	if (sscanf(buf, "%d", &clear) != 1)
1893		return -EFAULT;
1894
1895	/* make request to uCode to retrieve statistics information */
1896	mutex_lock(&priv->mutex);
1897	iwl_send_statistics_request(priv, CMD_SYNC, true);
1898	mutex_unlock(&priv->mutex);
1899
1900	return count;
1901}
1902
1903static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1904					char __user *user_buf,
1905					size_t count, loff_t *ppos) {
1906
1907	struct iwl_priv *priv = file->private_data;
1908	int pos = 0;
1909	char buf[128];
1910	const size_t bufsz = sizeof(buf);
1911
1912	pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1913			priv->event_log.ucode_trace ? "On" : "Off");
1914	pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1915			priv->event_log.non_wraps_count);
1916	pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1917			priv->event_log.wraps_once_count);
1918	pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1919			priv->event_log.wraps_more_count);
1920
1921	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1922}
1923
1924static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1925					 const char __user *user_buf,
1926					 size_t count, loff_t *ppos)
1927{
1928	struct iwl_priv *priv = file->private_data;
1929	char buf[8];
1930	int buf_size;
1931	int trace;
1932
1933	memset(buf, 0, sizeof(buf));
1934	buf_size = min(count, sizeof(buf) -  1);
1935	if (copy_from_user(buf, user_buf, buf_size))
1936		return -EFAULT;
1937	if (sscanf(buf, "%d", &trace) != 1)
1938		return -EFAULT;
1939
1940	if (trace) {
1941		priv->event_log.ucode_trace = true;
1942		if (iwl_is_alive(priv)) {
1943			/* start collecting data now */
1944			mod_timer(&priv->ucode_trace, jiffies);
1945		}
1946	} else {
1947		priv->event_log.ucode_trace = false;
1948		del_timer_sync(&priv->ucode_trace);
1949	}
1950
1951	return count;
1952}
1953
1954static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1955					 char __user *user_buf,
1956					 size_t count, loff_t *ppos) {
1957
1958	struct iwl_priv *priv = file->private_data;
1959	int len = 0;
1960	char buf[20];
1961
1962	len = sprintf(buf, "0x%04X\n",
1963		le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1964	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1965}
1966
1967static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1968						char __user *user_buf,
1969						size_t count, loff_t *ppos) {
1970
1971	struct iwl_priv *priv = file->private_data;
1972	int len = 0;
1973	char buf[20];
1974
1975	len = sprintf(buf, "0x%04X\n",
1976		le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1977	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1978}
1979
1980static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1981					char __user *user_buf,
1982					size_t count, loff_t *ppos) {
1983
1984	struct iwl_priv *priv = file->private_data;
1985	int pos = 0;
1986	char buf[12];
1987	const size_t bufsz = sizeof(buf);
1988
1989	pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1990			priv->missed_beacon_threshold);
1991
1992	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1993}
1994
1995static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1996					 const char __user *user_buf,
1997					 size_t count, loff_t *ppos)
1998{
1999	struct iwl_priv *priv = file->private_data;
2000	char buf[8];
2001	int buf_size;
2002	int missed;
2003
2004	memset(buf, 0, sizeof(buf));
2005	buf_size = min(count, sizeof(buf) -  1);
2006	if (copy_from_user(buf, user_buf, buf_size))
2007		return -EFAULT;
2008	if (sscanf(buf, "%d", &missed) != 1)
2009		return -EINVAL;
2010
2011	if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
2012	    missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
2013		priv->missed_beacon_threshold =
2014			IWL_MISSED_BEACON_THRESHOLD_DEF;
2015	else
2016		priv->missed_beacon_threshold = missed;
2017
2018	return count;
2019}
2020
2021static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
2022					char __user *user_buf,
2023					size_t count, loff_t *ppos) {
2024
2025	struct iwl_priv *priv = file->private_data;
2026	int pos = 0;
2027	char buf[12];
2028	const size_t bufsz = sizeof(buf);
2029
2030	pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
2031			priv->plcp_delta_threshold);
2032
2033	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2034}
2035
2036static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
2037					const char __user *user_buf,
2038					size_t count, loff_t *ppos) {
2039
2040	struct iwl_priv *priv = file->private_data;
2041	char buf[8];
2042	int buf_size;
2043	int plcp;
2044
2045	memset(buf, 0, sizeof(buf));
2046	buf_size = min(count, sizeof(buf) -  1);
2047	if (copy_from_user(buf, user_buf, buf_size))
2048		return -EFAULT;
2049	if (sscanf(buf, "%d", &plcp) != 1)
2050		return -EINVAL;
2051	if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
2052		(plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
2053		priv->plcp_delta_threshold =
2054			IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
2055	else
2056		priv->plcp_delta_threshold = plcp;
2057	return count;
2058}
2059
2060static ssize_t iwl_dbgfs_rf_reset_read(struct file *file,
2061				       char __user *user_buf,
2062				       size_t count, loff_t *ppos)
2063{
2064	struct iwl_priv *priv = file->private_data;
2065	int pos = 0;
2066	char buf[300];
2067	const size_t bufsz = sizeof(buf);
2068	struct iwl_rf_reset *rf_reset = &priv->rf_reset;
2069
2070	pos += scnprintf(buf + pos, bufsz - pos,
2071			"RF reset statistics\n");
2072	pos += scnprintf(buf + pos, bufsz - pos,
2073			"\tnumber of reset request: %d\n",
2074			rf_reset->reset_request_count);
2075	pos += scnprintf(buf + pos, bufsz - pos,
2076			"\tnumber of reset request success: %d\n",
2077			rf_reset->reset_success_count);
2078	pos += scnprintf(buf + pos, bufsz - pos,
2079			"\tnumber of reset request reject: %d\n",
2080			rf_reset->reset_reject_count);
2081
2082	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2083}
2084
2085static ssize_t iwl_dbgfs_rf_reset_write(struct file *file,
2086					const char __user *user_buf,
2087					size_t count, loff_t *ppos) {
2088
2089	struct iwl_priv *priv = file->private_data;
2090	int ret;
2091
2092	ret = iwl_force_rf_reset(priv, true);
2093	return ret ? ret : count;
2094}
2095
2096static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
2097					const char __user *user_buf,
2098					size_t count, loff_t *ppos) {
2099
2100	struct iwl_priv *priv = file->private_data;
2101	char buf[8];
2102	int buf_size;
2103	int flush;
2104
2105	memset(buf, 0, sizeof(buf));
2106	buf_size = min(count, sizeof(buf) -  1);
2107	if (copy_from_user(buf, user_buf, buf_size))
2108		return -EFAULT;
2109	if (sscanf(buf, "%d", &flush) != 1)
2110		return -EINVAL;
2111
2112	if (iwl_is_rfkill(priv))
2113		return -EFAULT;
2114
2115	iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
2116
2117	return count;
2118}
2119
2120static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
2121					char __user *user_buf,
2122					size_t count, loff_t *ppos) {
2123
2124	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2125	int pos = 0;
2126	char buf[200];
2127	const size_t bufsz = sizeof(buf);
2128
2129	if (!priv->bt_enable_flag) {
2130		pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2131		return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2132	}
2133	pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
2134		priv->bt_enable_flag);
2135	pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
2136		priv->bt_full_concurrent ? "full concurrency" : "3-wire");
2137	pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
2138			 "last traffic notif: %d\n",
2139		priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2140	pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2141			 "kill_ack_mask: %x, kill_cts_mask: %x\n",
2142		priv->bt_ch_announce, priv->kill_ack_mask,
2143		priv->kill_cts_mask);
2144
2145	pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
2146	switch (priv->bt_traffic_load) {
2147	case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
2148		pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
2149		break;
2150	case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
2151		pos += scnprintf(buf + pos, bufsz - pos, "High\n");
2152		break;
2153	case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
2154		pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
2155		break;
2156	case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
2157	default:
2158		pos += scnprintf(buf + pos, bufsz - pos, "None\n");
2159		break;
2160	}
2161
2162	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2163}
2164
2165static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
2166					char __user *user_buf,
2167					size_t count, loff_t *ppos)
2168{
2169	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2170
2171	int pos = 0;
2172	char buf[40];
2173	const size_t bufsz = sizeof(buf);
2174
2175	if (priv->cfg->ht_params)
2176		pos += scnprintf(buf + pos, bufsz - pos,
2177			 "use %s for aggregation\n",
2178			 (priv->hw_params.use_rts_for_aggregation) ?
2179				"rts/cts" : "cts-to-self");
2180	else
2181		pos += scnprintf(buf + pos, bufsz - pos, "N/A");
2182
2183	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2184}
2185
2186static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
2187					const char __user *user_buf,
2188					size_t count, loff_t *ppos) {
2189
2190	struct iwl_priv *priv = file->private_data;
2191	char buf[8];
2192	int buf_size;
2193	int rts;
2194
2195	if (!priv->cfg->ht_params)
2196		return -EINVAL;
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, "%d", &rts) != 1)
2203		return -EINVAL;
2204	if (rts)
2205		priv->hw_params.use_rts_for_aggregation = true;
2206	else
2207		priv->hw_params.use_rts_for_aggregation = false;
2208	return count;
2209}
2210
2211static int iwl_cmd_echo_test(struct iwl_priv *priv)
2212{
2213	int ret;
2214	struct iwl_host_cmd cmd = {
2215		.id = REPLY_ECHO,
2216		.len = { 0 },
2217		.flags = CMD_SYNC,
2218	};
2219
2220	ret = iwl_dvm_send_cmd(priv, &cmd);
2221	if (ret)
2222		IWL_ERR(priv, "echo testing fail: 0X%x\n", ret);
2223	else
2224		IWL_DEBUG_INFO(priv, "echo testing pass\n");
2225	return ret;
2226}
2227
2228static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
2229					const char __user *user_buf,
2230					size_t count, loff_t *ppos)
2231{
2232	struct iwl_priv *priv = file->private_data;
2233	char buf[8];
2234	int buf_size;
2235
2236	memset(buf, 0, sizeof(buf));
2237	buf_size = min(count, sizeof(buf) -  1);
2238	if (copy_from_user(buf, user_buf, buf_size))
2239		return -EFAULT;
2240
2241	iwl_cmd_echo_test(priv);
2242	return count;
2243}
2244
2245#ifdef CONFIG_IWLWIFI_DEBUG
2246static ssize_t iwl_dbgfs_log_event_read(struct file *file,
2247					 char __user *user_buf,
2248					 size_t count, loff_t *ppos)
2249{
2250	struct iwl_priv *priv = file->private_data;
2251	char *buf;
2252	int pos = 0;
2253	ssize_t ret = -ENOMEM;
2254
2255	ret = pos = iwl_dump_nic_event_log(priv, true, &buf, true);
2256	if (buf) {
2257		ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2258		kfree(buf);
2259	}
2260	return ret;
2261}
2262
2263static ssize_t iwl_dbgfs_log_event_write(struct file *file,
2264					const char __user *user_buf,
2265					size_t count, loff_t *ppos)
2266{
2267	struct iwl_priv *priv = file->private_data;
2268	u32 event_log_flag;
2269	char buf[8];
2270	int buf_size;
2271
2272	memset(buf, 0, sizeof(buf));
2273	buf_size = min(count, sizeof(buf) -  1);
2274	if (copy_from_user(buf, user_buf, buf_size))
2275		return -EFAULT;
2276	if (sscanf(buf, "%d", &event_log_flag) != 1)
2277		return -EFAULT;
2278	if (event_log_flag == 1)
2279		iwl_dump_nic_event_log(priv, true, NULL, false);
2280
2281	return count;
2282}
2283#endif
2284
2285static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file,
2286					 char __user *user_buf,
2287					 size_t count, loff_t *ppos)
2288{
2289	struct iwl_priv *priv = file->private_data;
2290	char buf[120];
2291	int pos = 0;
2292	const size_t bufsz = sizeof(buf);
2293
2294	pos += scnprintf(buf + pos, bufsz - pos,
2295			 "Sensitivity calibrations %s\n",
2296			 (priv->calib_disabled &
2297					IWL_SENSITIVITY_CALIB_DISABLED) ?
2298			 "DISABLED" : "ENABLED");
2299	pos += scnprintf(buf + pos, bufsz - pos,
2300			 "Chain noise calibrations %s\n",
2301			 (priv->calib_disabled &
2302					IWL_CHAIN_NOISE_CALIB_DISABLED) ?
2303			 "DISABLED" : "ENABLED");
2304	pos += scnprintf(buf + pos, bufsz - pos,
2305			 "Tx power calibrations %s\n",
2306			 (priv->calib_disabled &
2307					IWL_TX_POWER_CALIB_DISABLED) ?
2308			 "DISABLED" : "ENABLED");
2309
2310	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2311}
2312
2313static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
2314					      const char __user *user_buf,
2315					      size_t count, loff_t *ppos)
2316{
2317	struct iwl_priv *priv = file->private_data;
2318	char buf[8];
2319	u32 calib_disabled;
2320	int buf_size;
2321
2322	memset(buf, 0, sizeof(buf));
2323	buf_size = min(count, sizeof(buf) - 1);
2324	if (copy_from_user(buf, user_buf, buf_size))
2325		return -EFAULT;
2326	if (sscanf(buf, "%x", &calib_disabled) != 1)
2327		return -EFAULT;
2328
2329	priv->calib_disabled = calib_disabled;
2330
2331	return count;
2332}
2333
2334DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2335DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2336DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2337DEBUGFS_READ_FILE_OPS(sensitivity);
2338DEBUGFS_READ_FILE_OPS(chain_noise);
2339DEBUGFS_READ_FILE_OPS(power_save_status);
2340DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2341DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2342DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2343DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2344DEBUGFS_READ_WRITE_FILE_OPS(rf_reset);
2345DEBUGFS_READ_FILE_OPS(rxon_flags);
2346DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2347DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2348DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2349DEBUGFS_READ_FILE_OPS(bt_traffic);
2350DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2351DEBUGFS_READ_FILE_OPS(reply_tx_error);
2352DEBUGFS_WRITE_FILE_OPS(echo_test);
2353#ifdef CONFIG_IWLWIFI_DEBUG
2354DEBUGFS_READ_WRITE_FILE_OPS(log_event);
2355#endif
2356DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
2357
2358/*
2359 * Create the debugfs files and directories
2360 *
2361 */
2362int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
2363{
2364	struct dentry *phyd = priv->hw->wiphy->debugfsdir;
2365	struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
2366
2367	dir_drv = debugfs_create_dir(name, phyd);
2368	if (!dir_drv)
2369		return -ENOMEM;
2370
2371	priv->debugfs_dir = dir_drv;
2372
2373	dir_data = debugfs_create_dir("data", dir_drv);
2374	if (!dir_data)
2375		goto err;
2376	dir_rf = debugfs_create_dir("rf", dir_drv);
2377	if (!dir_rf)
2378		goto err;
2379	dir_debug = debugfs_create_dir("debug", dir_drv);
2380	if (!dir_debug)
2381		goto err;
2382
2383	DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
2384	DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
2385	DEBUGFS_ADD_FILE(wowlan_sram, dir_data, S_IRUSR);
2386	DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
2387	DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
2388	DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
2389	DEBUGFS_ADD_FILE(rx_handlers, dir_data, S_IWUSR | S_IRUSR);
2390	DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
2391	DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
2392	DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
2393	DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
2394	DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
2395	DEBUGFS_ADD_FILE(temperature, dir_data, S_IRUSR);
2396
2397	DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
2398	DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
2399	DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
2400	DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
2401	DEBUGFS_ADD_FILE(rf_reset, dir_debug, S_IWUSR | S_IRUSR);
2402	DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
2403	DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
2404	DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
2405	DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
2406	DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
2407	DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
2408	DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
2409	DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
2410	DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
2411	DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
2412	DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
2413	DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
2414	DEBUGFS_ADD_FILE(echo_test, dir_debug, S_IWUSR);
2415#ifdef CONFIG_IWLWIFI_DEBUG
2416	DEBUGFS_ADD_FILE(log_event, dir_debug, S_IWUSR | S_IRUSR);
2417#endif
2418
2419	if (iwl_advanced_bt_coexist(priv))
2420		DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
2421
2422	/* Calibrations disabled/enabled status*/
2423	DEBUGFS_ADD_FILE(calib_disabled, dir_rf, S_IWUSR | S_IRUSR);
2424
2425	if (iwl_trans_dbgfs_register(priv->trans, dir_debug))
2426		goto err;
2427	return 0;
2428
2429err:
2430	IWL_ERR(priv, "Can't create the debugfs directory\n");
2431	iwl_dbgfs_unregister(priv);
2432	return -ENOMEM;
2433}
2434
2435/**
2436 * Remove the debugfs files and directories
2437 *
2438 */
2439void iwl_dbgfs_unregister(struct iwl_priv *priv)
2440{
2441	if (!priv->debugfs_dir)
2442		return;
2443
2444	debugfs_remove_recursive(priv->debugfs_dir);
2445	priv->debugfs_dir = NULL;
2446}