iwl-debugfs.c 81.3 KB
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/******************************************************************************
 *
 * GPL LICENSE SUMMARY
 *
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 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
 * USA
 *
 * The full GNU General Public License is included in this distribution
 * in the file called LICENSE.GPL.
 *
 * Contact Information:
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 *  Intel Linux Wireless <ilw@linux.intel.com>
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 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *****************************************************************************/

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#include <linux/slab.h>
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#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/debugfs.h>

#include <linux/ieee80211.h>
#include <net/mac80211.h>


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#include "iwl-dev.h"
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#include "iwl-debug.h"
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#include "iwl-core.h"
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#include "iwl-io.h"
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#include "iwl-agn.h"
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/* create and remove of files */
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#define DEBUGFS_ADD_FILE(name, parent, mode) do {			\
	if (!debugfs_create_file(#name, mode, parent, priv,		\
				 &iwl_dbgfs_##name##_ops))		\
		goto err;						\
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} while (0)

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#define DEBUGFS_ADD_BOOL(name, parent, ptr) do {			\
	struct dentry *__tmp;						\
	__tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR,		\
				    parent, ptr);			\
	if (IS_ERR(__tmp) || !__tmp)					\
		goto err;						\
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} while (0)

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#define DEBUGFS_ADD_X32(name, parent, ptr) do {				\
	struct dentry *__tmp;						\
	__tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR,		\
				   parent, ptr);			\
	if (IS_ERR(__tmp) || !__tmp)					\
		goto err;						\
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} while (0)

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/* file operation */
#define DEBUGFS_READ_FUNC(name)                                         \
static ssize_t iwl_dbgfs_##name##_read(struct file *file,               \
					char __user *user_buf,          \
					size_t count, loff_t *ppos);

#define DEBUGFS_WRITE_FUNC(name)                                        \
static ssize_t iwl_dbgfs_##name##_write(struct file *file,              \
					const char __user *user_buf,    \
					size_t count, loff_t *ppos);


static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
{
	file->private_data = inode->i_private;
	return 0;
}

#define DEBUGFS_READ_FILE_OPS(name)                                     \
	DEBUGFS_READ_FUNC(name);                                        \
static const struct file_operations iwl_dbgfs_##name##_ops = {          \
	.read = iwl_dbgfs_##name##_read,                       		\
	.open = iwl_dbgfs_open_file_generic,                    	\
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	.llseek = generic_file_llseek,					\
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};

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#define DEBUGFS_WRITE_FILE_OPS(name)                                    \
	DEBUGFS_WRITE_FUNC(name);                                       \
static const struct file_operations iwl_dbgfs_##name##_ops = {          \
	.write = iwl_dbgfs_##name##_write,                              \
	.open = iwl_dbgfs_open_file_generic,                    	\
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	.llseek = generic_file_llseek,					\
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};


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#define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
	DEBUGFS_READ_FUNC(name);                                        \
	DEBUGFS_WRITE_FUNC(name);                                       \
static const struct file_operations iwl_dbgfs_##name##_ops = {          \
	.write = iwl_dbgfs_##name##_write,                              \
	.read = iwl_dbgfs_##name##_read,                                \
	.open = iwl_dbgfs_open_file_generic,                            \
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	.llseek = generic_file_llseek,					\
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};

static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
						char __user *user_buf,
						size_t count, loff_t *ppos) {

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	struct iwl_priv *priv = file->private_data;
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	char *buf;
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	int pos = 0;

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	int cnt;
	ssize_t ret;
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	const size_t bufsz = 100 +
		sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
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	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;
	pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
	for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
		pos += scnprintf(buf + pos, bufsz - pos,
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				 "\t%25s\t\t: %u\n",
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				 get_mgmt_string(cnt),
				 priv->tx_stats.mgmt[cnt]);
	}
	pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
	for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
		pos += scnprintf(buf + pos, bufsz - pos,
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				 "\t%25s\t\t: %u\n",
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				 get_ctrl_string(cnt),
				 priv->tx_stats.ctrl[cnt]);
	}
	pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
	pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
			 priv->tx_stats.data_cnt);
	pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
			 priv->tx_stats.data_bytes);
	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	kfree(buf);
	return ret;
}

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static ssize_t iwl_dbgfs_clear_traffic_statistics_write(struct file *file,
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					const char __user *user_buf,
					size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = file->private_data;
	u32 clear_flag;
	char buf[8];
	int buf_size;
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	memset(buf, 0, sizeof(buf));
	buf_size = min(count, sizeof(buf) -  1);
	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;
	if (sscanf(buf, "%x", &clear_flag) != 1)
		return -EFAULT;
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	iwl_clear_traffic_stats(priv);
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	return count;
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}

static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
						char __user *user_buf,
						size_t count, loff_t *ppos) {

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	struct iwl_priv *priv = file->private_data;
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	char *buf;
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	int pos = 0;
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	int cnt;
	ssize_t ret;
	const size_t bufsz = 100 +
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		sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
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	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;
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	pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
	for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
		pos += scnprintf(buf + pos, bufsz - pos,
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				 "\t%25s\t\t: %u\n",
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				 get_mgmt_string(cnt),
				 priv->rx_stats.mgmt[cnt]);
	}
	pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
	for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
		pos += scnprintf(buf + pos, bufsz - pos,
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				 "\t%25s\t\t: %u\n",
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				 get_ctrl_string(cnt),
				 priv->rx_stats.ctrl[cnt]);
	}
	pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
	pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
			 priv->rx_stats.data_cnt);
	pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
			 priv->rx_stats.data_bytes);
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	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	kfree(buf);
	return ret;
}

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static ssize_t iwl_dbgfs_sram_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos)
{
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	u32 val = 0;
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	char *buf;
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	ssize_t ret;
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	int i = 0;
	bool device_format = false;
	int offset = 0;
	int len = 0;
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	int pos = 0;
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	int sram;
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	struct iwl_priv *priv = file->private_data;
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	size_t bufsz;
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	/* default is to dump the entire data segment */
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	if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
		priv->dbgfs_sram_offset = 0x800000;
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		if (priv->ucode_type == IWL_UCODE_INIT)
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			priv->dbgfs_sram_len = priv->ucode_init.data.len;
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		else
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			priv->dbgfs_sram_len = priv->ucode_rt.data.len;
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	}
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	len = priv->dbgfs_sram_len;

	if (len == -4) {
		device_format = true;
		len = 4;
	}

	bufsz =  50 + len * 4;
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	buf = kmalloc(bufsz, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;
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	pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
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			 len);
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	pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
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			priv->dbgfs_sram_offset);
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	/* adjust sram address since reads are only on even u32 boundaries */
	offset = priv->dbgfs_sram_offset & 0x3;
	sram = priv->dbgfs_sram_offset & ~0x3;

	/* read the first u32 from sram */
	val = iwl_read_targ_mem(priv, sram);

	for (; len; len--) {
		/* put the address at the start of every line */
		if (i == 0)
			pos += scnprintf(buf + pos, bufsz - pos,
				"%08X: ", sram + offset);

		if (device_format)
			pos += scnprintf(buf + pos, bufsz - pos,
				"%02x", (val >> (8 * (3 - offset))) & 0xff);
		else
			pos += scnprintf(buf + pos, bufsz - pos,
				"%02x ", (val >> (8 * offset)) & 0xff);

		/* if all bytes processed, read the next u32 from sram */
		if (++offset == 4) {
			sram += 4;
			offset = 0;
			val = iwl_read_targ_mem(priv, sram);
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		}
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		/* put in extra spaces and split lines for human readability */
		if (++i == 16) {
			i = 0;
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			pos += scnprintf(buf + pos, bufsz - pos, "\n");
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		} else if (!(i & 7)) {
			pos += scnprintf(buf + pos, bufsz - pos, "   ");
		} else if (!(i & 3)) {
			pos += scnprintf(buf + pos, bufsz - pos, " ");
		}
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	}
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	if (i)
		pos += scnprintf(buf + pos, bufsz - pos, "\n");
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	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
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	kfree(buf);
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	return ret;
}

static ssize_t iwl_dbgfs_sram_write(struct file *file,
					const char __user *user_buf,
					size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = file->private_data;
	char buf[64];
	int buf_size;
	u32 offset, len;

	memset(buf, 0, sizeof(buf));
	buf_size = min(count, sizeof(buf) -  1);
	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;

	if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
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		priv->dbgfs_sram_offset = offset;
		priv->dbgfs_sram_len = len;
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	} else if (sscanf(buf, "%x", &offset) == 1) {
		priv->dbgfs_sram_offset = offset;
		priv->dbgfs_sram_len = -4;
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	} else {
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		priv->dbgfs_sram_offset = 0;
		priv->dbgfs_sram_len = 0;
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	}

	return count;
}

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static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
					  char __user *user_buf,
					  size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = file->private_data;

	if (!priv->wowlan_sram)
		return -ENODATA;

	return simple_read_from_buffer(user_buf, count, ppos,
				       priv->wowlan_sram,
				       priv->ucode_wowlan.data.len);
}
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static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
					size_t count, loff_t *ppos)
{
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	struct iwl_priv *priv = file->private_data;
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	struct iwl_station_entry *station;
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	int max_sta = hw_params(priv).max_stations;
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	char *buf;
	int i, j, pos = 0;
	ssize_t ret;
	/* Add 30 for initial string */
	const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);

	buf = kmalloc(bufsz, GFP_KERNEL);
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	if (!buf)
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		return -ENOMEM;

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	pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
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			priv->num_stations);

	for (i = 0; i < max_sta; i++) {
		station = &priv->stations[i];
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		if (!station->used)
			continue;
		pos += scnprintf(buf + pos, bufsz - pos,
				 "station %d - addr: %pM, flags: %#x\n",
				 i, station->sta.sta.addr,
				 station->sta.station_flags_msk);
		pos += scnprintf(buf + pos, bufsz - pos,
				"TID\tseq_num\ttxq_id\tframes\ttfds\t");
		pos += scnprintf(buf + pos, bufsz - pos,
				"start_idx\tbitmap\t\t\trate_n_flags\n");
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		for (j = 0; j < MAX_TID_COUNT; j++) {
			pos += scnprintf(buf + pos, bufsz - pos,
				"%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
				j, station->tid[j].seq_number,
				station->tid[j].agg.txq_id,
				station->tid[j].agg.frame_count,
				station->tid[j].tfds_in_queue,
				station->tid[j].agg.start_idx,
				station->tid[j].agg.bitmap,
				station->tid[j].agg.rate_n_flags);

			if (station->tid[j].agg.wait_for_ba)
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				pos += scnprintf(buf + pos, bufsz - pos,
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						 " - waitforba");
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			pos += scnprintf(buf + pos, bufsz - pos, "\n");
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		}
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		pos += scnprintf(buf + pos, bufsz - pos, "\n");
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	}

	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	kfree(buf);
	return ret;
}

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static ssize_t iwl_dbgfs_nvm_read(struct file *file,
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				       char __user *user_buf,
				       size_t count,
				       loff_t *ppos)
{
	ssize_t ret;
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	struct iwl_priv *priv = file->private_data;
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	int pos = 0, ofs = 0, buf_size = 0;
	const u8 *ptr;
	char *buf;
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	u16 eeprom_ver;
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	size_t eeprom_len = priv->cfg->base_params->eeprom_size;
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	buf_size = 4 * eeprom_len + 256;

	if (eeprom_len % 16) {
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		IWL_ERR(priv, "NVM size is not multiple of 16.\n");
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		return -ENODATA;
	}

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	ptr = priv->eeprom;
	if (!ptr) {
		IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
		return -ENOMEM;
	}

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	/* 4 characters for byte 0xYY */
	buf = kzalloc(buf_size, GFP_KERNEL);
	if (!buf) {
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		IWL_ERR(priv, "Can not allocate Buffer\n");
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		return -ENOMEM;
	}
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	eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
	pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
			"version: 0x%x\n",
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			(priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
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			 ? "OTP" : "EEPROM", eeprom_ver);
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	for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
		pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
		hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
				   buf_size - pos, 0);
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		pos += strlen(buf + pos);
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		if (buf_size - pos > 0)
			buf[pos++] = '\n';
	}

	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	kfree(buf);
	return ret;
}
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static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
				       size_t count, loff_t *ppos)
{
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	struct iwl_priv *priv = file->private_data;
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	struct ieee80211_channel *channels = NULL;
	const struct ieee80211_supported_band *supp_band = NULL;
	int pos = 0, i, bufsz = PAGE_SIZE;
	char *buf;
	ssize_t ret;

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	if (!test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status))
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		return -EAGAIN;

	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf) {
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		IWL_ERR(priv, "Can not allocate Buffer\n");
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		return -ENOMEM;
	}

	supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
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	if (supp_band) {
		channels = supp_band->channels;
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		pos += scnprintf(buf + pos, bufsz - pos,
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				"Displaying %d channels in 2.4GHz band 802.11bg):\n",
				supp_band->n_channels);
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		for (i = 0; i < supp_band->n_channels; i++)
			pos += scnprintf(buf + pos, bufsz - pos,
					"%d: %ddBm: BSS%s%s, %s.\n",
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					channels[i].hw_value,
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					channels[i].max_power,
					channels[i].flags & IEEE80211_CHAN_RADAR ?
					" (IEEE 802.11h required)" : "",
					((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
					|| (channels[i].flags &
					IEEE80211_CHAN_RADAR)) ? "" :
					", IBSS",
					channels[i].flags &
					IEEE80211_CHAN_PASSIVE_SCAN ?
					"passive only" : "active/passive");
	}
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	supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
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	if (supp_band) {
		channels = supp_band->channels;
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		pos += scnprintf(buf + pos, bufsz - pos,
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				"Displaying %d channels in 5.2GHz band (802.11a)\n",
				supp_band->n_channels);

		for (i = 0; i < supp_band->n_channels; i++)
			pos += scnprintf(buf + pos, bufsz - pos,
					"%d: %ddBm: BSS%s%s, %s.\n",
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					channels[i].hw_value,
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					channels[i].max_power,
					channels[i].flags & IEEE80211_CHAN_RADAR ?
					" (IEEE 802.11h required)" : "",
					((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
					|| (channels[i].flags &
					IEEE80211_CHAN_RADAR)) ? "" :
					", IBSS",
					channels[i].flags &
					IEEE80211_CHAN_PASSIVE_SCAN ?
					"passive only" : "active/passive");
	}
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	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	kfree(buf);
	return ret;
}

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static ssize_t iwl_dbgfs_status_read(struct file *file,
						char __user *user_buf,
						size_t count, loff_t *ppos) {

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	struct iwl_priv *priv = file->private_data;
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	char buf[512];
	int pos = 0;
	const size_t bufsz = sizeof(buf);

	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
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		test_bit(STATUS_HCMD_ACTIVE, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
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		test_bit(STATUS_INT_ENABLED, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
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		test_bit(STATUS_RF_KILL_HW, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
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		test_bit(STATUS_CT_KILL, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
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		test_bit(STATUS_INIT, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
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		test_bit(STATUS_ALIVE, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
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		test_bit(STATUS_READY, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
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		test_bit(STATUS_TEMPERATURE, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
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		test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
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		test_bit(STATUS_EXIT_PENDING, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
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		test_bit(STATUS_STATISTICS, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
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		test_bit(STATUS_SCANNING, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
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		test_bit(STATUS_SCAN_ABORTING, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
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		test_bit(STATUS_SCAN_HW, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
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		test_bit(STATUS_POWER_PMI, &priv->shrd->status));
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	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
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		test_bit(STATUS_FW_ERROR, &priv->shrd->status));
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	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

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static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file,
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					char __user *user_buf,
					size_t count, loff_t *ppos) {

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	struct iwl_priv *priv = file->private_data;
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	int pos = 0;
	int cnt = 0;
	char *buf;
	int bufsz = 24 * 64; /* 24 items * 64 char per item */
	ssize_t ret;

	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf) {
		IWL_ERR(priv, "Can not allocate Buffer\n");
		return -ENOMEM;
	}

	for (cnt = 0; cnt < REPLY_MAX; cnt++) {
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		if (priv->rx_handlers_stats[cnt] > 0)
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			pos += scnprintf(buf + pos, bufsz - pos,
				"\tRx handler[%36s]:\t\t %u\n",
				get_cmd_string(cnt),
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				priv->rx_handlers_stats[cnt]);
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	}

	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	kfree(buf);
	return ret;
}

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static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
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					 const char __user *user_buf,
					 size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = file->private_data;
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	char buf[8];
	int buf_size;
	u32 reset_flag;

	memset(buf, 0, sizeof(buf));
	buf_size = min(count, sizeof(buf) -  1);
	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;
	if (sscanf(buf, "%x", &reset_flag) != 1)
		return -EFAULT;
	if (reset_flag == 0)
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		memset(&priv->rx_handlers_stats[0], 0,
			sizeof(priv->rx_handlers_stats));
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	return count;
}

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static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
				       size_t count, loff_t *ppos)
{
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	struct iwl_priv *priv = file->private_data;
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	struct iwl_rxon_context *ctx;
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	int pos = 0, i;
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	char buf[256 * NUM_IWL_RXON_CTX];
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	const size_t bufsz = sizeof(buf);

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	for_each_context(priv, ctx) {
		pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
				 ctx->ctxid);
		for (i = 0; i < AC_NUM; i++) {
			pos += scnprintf(buf + pos, bufsz - pos,
				"\tcw_min\tcw_max\taifsn\ttxop\n");
			pos += scnprintf(buf + pos, bufsz - pos,
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				"AC[%d]\t%u\t%u\t%u\t%u\n", i,
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				ctx->qos_data.def_qos_parm.ac[i].cw_min,
				ctx->qos_data.def_qos_parm.ac[i].cw_max,
				ctx->qos_data.def_qos_parm.ac[i].aifsn,
				ctx->qos_data.def_qos_parm.ac[i].edca_txop);
		}
		pos += scnprintf(buf + pos, bufsz - pos, "\n");
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	}
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	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
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}
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static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
				char __user *user_buf,
				size_t count, loff_t *ppos)
{
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	struct iwl_priv *priv = file->private_data;
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	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
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	struct iwl_tt_restriction *restriction;
	char buf[100];
	int pos = 0;
	const size_t bufsz = sizeof(buf);

	pos += scnprintf(buf + pos, bufsz - pos,
			"Thermal Throttling Mode: %s\n",
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			tt->advanced_tt ? "Advance" : "Legacy");
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	pos += scnprintf(buf + pos, bufsz - pos,
			"Thermal Throttling State: %d\n",
			tt->state);
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	if (tt->advanced_tt) {
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		restriction = tt->restriction + tt->state;
		pos += scnprintf(buf + pos, bufsz - pos,
				"Tx mode: %d\n",
				restriction->tx_stream);
		pos += scnprintf(buf + pos, bufsz - pos,
				"Rx mode: %d\n",
				restriction->rx_stream);
		pos += scnprintf(buf + pos, bufsz - pos,
				"HT mode: %d\n",
				restriction->is_ht);
	}
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	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
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}

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static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
					 const char __user *user_buf,
					 size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = file->private_data;
	char buf[8];
	int buf_size;
	int ht40;

	memset(buf, 0, sizeof(buf));
	buf_size = min(count, sizeof(buf) -  1);
	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;
	if (sscanf(buf, "%d", &ht40) != 1)
		return -EFAULT;
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	if (!iwl_is_any_associated(priv))
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		priv->disable_ht40 = ht40 ? true : false;
	else {
		IWL_ERR(priv, "Sta associated with AP - "
			"Change to 40MHz channel support is not allowed\n");
		return -EINVAL;
	}

	return count;
}

static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
					 char __user *user_buf,
					 size_t count, loff_t *ppos)
{
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	struct iwl_priv *priv = file->private_data;
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	char buf[100];
	int pos = 0;
	const size_t bufsz = sizeof(buf);

	pos += scnprintf(buf + pos, bufsz - pos,
			"11n 40MHz Mode: %s\n",
			priv->disable_ht40 ? "Disabled" : "Enabled");
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	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
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}

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static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
						    const char __user *user_buf,
						    size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = file->private_data;
	char buf[8];
	int buf_size;
	int value;

	memset(buf, 0, sizeof(buf));
	buf_size = min(count, sizeof(buf) -  1);
	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;

	if (sscanf(buf, "%d", &value) != 1)
		return -EINVAL;

	/*
	 * Our users expect 0 to be "CAM", but 0 isn't actually
	 * valid here. However, let's not confuse them and present
	 * IWL_POWER_INDEX_1 as "1", not "0".
	 */
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	if (value == 0)
		return -EINVAL;
	else if (value > 0)
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		value -= 1;

	if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
		return -EINVAL;

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	if (!iwl_is_ready_rf(priv))
		return -EAGAIN;

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	priv->power_data.debug_sleep_level_override = value;

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	mutex_lock(&priv->shrd->mutex);
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	iwl_power_update_mode(priv, true);
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	mutex_unlock(&priv->shrd->mutex);
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	return count;
}

static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
						   char __user *user_buf,
						   size_t count, loff_t *ppos)
{
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	struct iwl_priv *priv = file->private_data;
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	char buf[10];
	int pos, value;
	const size_t bufsz = sizeof(buf);

	/* see the write function */
	value = priv->power_data.debug_sleep_level_override;
	if (value >= 0)
		value += 1;

	pos = scnprintf(buf, bufsz, "%d\n", value);
	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
						    char __user *user_buf,
						    size_t count, loff_t *ppos)
{
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	struct iwl_priv *priv = file->private_data;
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	char buf[200];
	int pos = 0, i;
	const size_t bufsz = sizeof(buf);
	struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;

	pos += scnprintf(buf + pos, bufsz - pos,
			 "flags: %#.2x\n", le16_to_cpu(cmd->flags));
	pos += scnprintf(buf + pos, bufsz - pos,
			 "RX/TX timeout: %d/%d usec\n",
			 le32_to_cpu(cmd->rx_data_timeout),
			 le32_to_cpu(cmd->tx_data_timeout));
	for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
		pos += scnprintf(buf + pos, bufsz - pos,
				 "sleep_interval[%d]: %d\n", i,
				 le32_to_cpu(cmd->sleep_interval[i]));

	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

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DEBUGFS_READ_WRITE_FILE_OPS(sram);
Johannes Berg's avatar
Johannes Berg committed
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DEBUGFS_READ_FILE_OPS(wowlan_sram);
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DEBUGFS_READ_FILE_OPS(nvm);
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DEBUGFS_READ_FILE_OPS(stations);
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DEBUGFS_READ_FILE_OPS(channels);
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DEBUGFS_READ_FILE_OPS(status);
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DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers);
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DEBUGFS_READ_FILE_OPS(qos);
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DEBUGFS_READ_FILE_OPS(thermal_throttling);
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DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
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DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
DEBUGFS_READ_FILE_OPS(current_sleep_command);
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static const char *fmt_value = "  %-30s %10u\n";
static const char *fmt_hex   = "  %-30s       0x%02X\n";
static const char *fmt_table = "  %-30s %10u  %10u  %10u  %10u\n";
static const char *fmt_header =
	"%-32s    current  cumulative       delta         max\n";

static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
{
	int p = 0;
	u32 flag;

	flag = le32_to_cpu(priv->statistics.flag);

	p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
	if (flag & UCODE_STATISTICS_CLEAR_MSK)
		p += scnprintf(buf + p, bufsz - p,
		"\tStatistics have been cleared\n");
	p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
		(flag & UCODE_STATISTICS_FREQUENCY_MSK)
		? "2.4 GHz" : "5.2 GHz");
	p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
		(flag & UCODE_STATISTICS_NARROW_BAND_MSK)
		 ? "enabled" : "disabled");

	return p;
}

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static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos)
{
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	struct iwl_priv *priv = file->private_data;
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	int pos = 0;
	char *buf;
	int bufsz = sizeof(struct statistics_rx_phy) * 40 +
		    sizeof(struct statistics_rx_non_phy) * 40 +
		    sizeof(struct statistics_rx_ht_phy) * 40 + 400;
	ssize_t ret;
	struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
	struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
	struct statistics_rx_non_phy *general, *accum_general;
	struct statistics_rx_non_phy *delta_general, *max_general;
	struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;

	if (!iwl_is_alive(priv))
		return -EAGAIN;

	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf) {
		IWL_ERR(priv, "Can not allocate Buffer\n");
		return -ENOMEM;
	}

	/*
	 * the statistic information display here is based on
	 * the last statistics notification from uCode
	 * might not reflect the current uCode activity
	 */
	ofdm = &priv->statistics.rx_ofdm;
	cck = &priv->statistics.rx_cck;
	general = &priv->statistics.rx_non_phy;
	ht = &priv->statistics.rx_ofdm_ht;
	accum_ofdm = &priv->accum_stats.rx_ofdm;
	accum_cck = &priv->accum_stats.rx_cck;
	accum_general = &priv->accum_stats.rx_non_phy;
	accum_ht = &priv->accum_stats.rx_ofdm_ht;
	delta_ofdm = &priv->delta_stats.rx_ofdm;
	delta_cck = &priv->delta_stats.rx_cck;
	delta_general = &priv->delta_stats.rx_non_phy;
	delta_ht = &priv->delta_stats.rx_ofdm_ht;
	max_ofdm = &priv->max_delta_stats.rx_ofdm;
	max_cck = &priv->max_delta_stats.rx_cck;
	max_general = &priv->max_delta_stats.rx_non_phy;
	max_ht = &priv->max_delta_stats.rx_ofdm_ht;

	pos += iwl_statistics_flag(priv, buf, bufsz);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_header, "Statistics_Rx - OFDM:");
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "ina_cnt:",
			 le32_to_cpu(ofdm->ina_cnt),
			 accum_ofdm->ina_cnt,
			 delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "fina_cnt:",
			 le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
			 delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "plcp_err:",
			 le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
			 delta_ofdm->plcp_err, max_ofdm->plcp_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "crc32_err:",
			 le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
			 delta_ofdm->crc32_err, max_ofdm->crc32_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "overrun_err:",
			 le32_to_cpu(ofdm->overrun_err),
			 accum_ofdm->overrun_err, delta_ofdm->overrun_err,
			 max_ofdm->overrun_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "early_overrun_err:",
			 le32_to_cpu(ofdm->early_overrun_err),
			 accum_ofdm->early_overrun_err,
			 delta_ofdm->early_overrun_err,
			 max_ofdm->early_overrun_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "crc32_good:",
			 le32_to_cpu(ofdm->crc32_good),
			 accum_ofdm->crc32_good, delta_ofdm->crc32_good,
			 max_ofdm->crc32_good);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "false_alarm_cnt:",
			 le32_to_cpu(ofdm->false_alarm_cnt),
			 accum_ofdm->false_alarm_cnt,
			 delta_ofdm->false_alarm_cnt,
			 max_ofdm->false_alarm_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "fina_sync_err_cnt:",
			 le32_to_cpu(ofdm->fina_sync_err_cnt),
			 accum_ofdm->fina_sync_err_cnt,
			 delta_ofdm->fina_sync_err_cnt,
			 max_ofdm->fina_sync_err_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "sfd_timeout:",
			 le32_to_cpu(ofdm->sfd_timeout),
			 accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
			 max_ofdm->sfd_timeout);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "fina_timeout:",
			 le32_to_cpu(ofdm->fina_timeout),
			 accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
			 max_ofdm->fina_timeout);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "unresponded_rts:",
			 le32_to_cpu(ofdm->unresponded_rts),
			 accum_ofdm->unresponded_rts,
			 delta_ofdm->unresponded_rts,
			 max_ofdm->unresponded_rts);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "rxe_frame_lmt_ovrun:",
			 le32_to_cpu(ofdm->rxe_frame_limit_overrun),
			 accum_ofdm->rxe_frame_limit_overrun,
			 delta_ofdm->rxe_frame_limit_overrun,
			 max_ofdm->rxe_frame_limit_overrun);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "sent_ack_cnt:",
			 le32_to_cpu(ofdm->sent_ack_cnt),
			 accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
			 max_ofdm->sent_ack_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "sent_cts_cnt:",
			 le32_to_cpu(ofdm->sent_cts_cnt),
			 accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
			 max_ofdm->sent_cts_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "sent_ba_rsp_cnt:",
			 le32_to_cpu(ofdm->sent_ba_rsp_cnt),
			 accum_ofdm->sent_ba_rsp_cnt,
			 delta_ofdm->sent_ba_rsp_cnt,
			 max_ofdm->sent_ba_rsp_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "dsp_self_kill:",
			 le32_to_cpu(ofdm->dsp_self_kill),
			 accum_ofdm->dsp_self_kill,
			 delta_ofdm->dsp_self_kill,
			 max_ofdm->dsp_self_kill);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "mh_format_err:",
			 le32_to_cpu(ofdm->mh_format_err),
			 accum_ofdm->mh_format_err,
			 delta_ofdm->mh_format_err,
			 max_ofdm->mh_format_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "re_acq_main_rssi_sum:",
			 le32_to_cpu(ofdm->re_acq_main_rssi_sum),
			 accum_ofdm->re_acq_main_rssi_sum,
			 delta_ofdm->re_acq_main_rssi_sum,
			 max_ofdm->re_acq_main_rssi_sum);

	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_header, "Statistics_Rx - CCK:");
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "ina_cnt:",
			 le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
			 delta_cck->ina_cnt, max_cck->ina_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "fina_cnt:",
			 le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
			 delta_cck->fina_cnt, max_cck->fina_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "plcp_err:",
			 le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
			 delta_cck->plcp_err, max_cck->plcp_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "crc32_err:",
			 le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
			 delta_cck->crc32_err, max_cck->crc32_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "overrun_err:",
			 le32_to_cpu(cck->overrun_err),
			 accum_cck->overrun_err, delta_cck->overrun_err,
			 max_cck->overrun_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "early_overrun_err:",
			 le32_to_cpu(cck->early_overrun_err),
			 accum_cck->early_overrun_err,
			 delta_cck->early_overrun_err,
			 max_cck->early_overrun_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "crc32_good:",
			 le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
			 delta_cck->crc32_good, max_cck->crc32_good);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "false_alarm_cnt:",
			 le32_to_cpu(cck->false_alarm_cnt),
			 accum_cck->false_alarm_cnt,
			 delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "fina_sync_err_cnt:",
			 le32_to_cpu(cck->fina_sync_err_cnt),
			 accum_cck->fina_sync_err_cnt,
			 delta_cck->fina_sync_err_cnt,
			 max_cck->fina_sync_err_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "sfd_timeout:",
			 le32_to_cpu(cck->sfd_timeout),
			 accum_cck->sfd_timeout, delta_cck->sfd_timeout,
			 max_cck->sfd_timeout);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "fina_timeout:",
			 le32_to_cpu(cck->fina_timeout),
			 accum_cck->fina_timeout, delta_cck->fina_timeout,
			 max_cck->fina_timeout);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "unresponded_rts:",
			 le32_to_cpu(cck->unresponded_rts),
			 accum_cck->unresponded_rts, delta_cck->unresponded_rts,
			 max_cck->unresponded_rts);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "rxe_frame_lmt_ovrun:",
			 le32_to_cpu(cck->rxe_frame_limit_overrun),
			 accum_cck->rxe_frame_limit_overrun,
			 delta_cck->rxe_frame_limit_overrun,
			 max_cck->rxe_frame_limit_overrun);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "sent_ack_cnt:",
			 le32_to_cpu(cck->sent_ack_cnt),
			 accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
			 max_cck->sent_ack_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "sent_cts_cnt:",
			 le32_to_cpu(cck->sent_cts_cnt),
			 accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
			 max_cck->sent_cts_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "sent_ba_rsp_cnt:",
			 le32_to_cpu(cck->sent_ba_rsp_cnt),
			 accum_cck->sent_ba_rsp_cnt,
			 delta_cck->sent_ba_rsp_cnt,
			 max_cck->sent_ba_rsp_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "dsp_self_kill:",
			 le32_to_cpu(cck->dsp_self_kill),
			 accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
			 max_cck->dsp_self_kill);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "mh_format_err:",
			 le32_to_cpu(cck->mh_format_err),
			 accum_cck->mh_format_err, delta_cck->mh_format_err,
			 max_cck->mh_format_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "re_acq_main_rssi_sum:",
			 le32_to_cpu(cck->re_acq_main_rssi_sum),
			 accum_cck->re_acq_main_rssi_sum,
			 delta_cck->re_acq_main_rssi_sum,
			 max_cck->re_acq_main_rssi_sum);

	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_header, "Statistics_Rx - GENERAL:");
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "bogus_cts:",
			 le32_to_cpu(general->bogus_cts),
			 accum_general->bogus_cts, delta_general->bogus_cts,
			 max_general->bogus_cts);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "bogus_ack:",
			 le32_to_cpu(general->bogus_ack),
			 accum_general->bogus_ack, delta_general->bogus_ack,
			 max_general->bogus_ack);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "non_bssid_frames:",
			 le32_to_cpu(general->non_bssid_frames),
			 accum_general->non_bssid_frames,
			 delta_general->non_bssid_frames,
			 max_general->non_bssid_frames);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "filtered_frames:",
			 le32_to_cpu(general->filtered_frames),
			 accum_general->filtered_frames,
			 delta_general->filtered_frames,
			 max_general->filtered_frames);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "non_channel_beacons:",
			 le32_to_cpu(general->non_channel_beacons),
			 accum_general->non_channel_beacons,
			 delta_general->non_channel_beacons,
			 max_general->non_channel_beacons);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "channel_beacons:",
			 le32_to_cpu(general->channel_beacons),
			 accum_general->channel_beacons,
			 delta_general->channel_beacons,
			 max_general->channel_beacons);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "num_missed_bcon:",
			 le32_to_cpu(general->num_missed_bcon),
			 accum_general->num_missed_bcon,
			 delta_general->num_missed_bcon,
			 max_general->num_missed_bcon);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "adc_rx_saturation_time:",
			 le32_to_cpu(general->adc_rx_saturation_time),
			 accum_general->adc_rx_saturation_time,
			 delta_general->adc_rx_saturation_time,
			 max_general->adc_rx_saturation_time);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "ina_detect_search_tm:",
			 le32_to_cpu(general->ina_detection_search_time),
			 accum_general->ina_detection_search_time,
			 delta_general->ina_detection_search_time,
			 max_general->ina_detection_search_time);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "beacon_silence_rssi_a:",
			 le32_to_cpu(general->beacon_silence_rssi_a),
			 accum_general->beacon_silence_rssi_a,
			 delta_general->beacon_silence_rssi_a,
			 max_general->beacon_silence_rssi_a);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "beacon_silence_rssi_b:",
			 le32_to_cpu(general->beacon_silence_rssi_b),
			 accum_general->beacon_silence_rssi_b,
			 delta_general->beacon_silence_rssi_b,
			 max_general->beacon_silence_rssi_b);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "beacon_silence_rssi_c:",
			 le32_to_cpu(general->beacon_silence_rssi_c),
			 accum_general->beacon_silence_rssi_c,
			 delta_general->beacon_silence_rssi_c,
			 max_general->beacon_silence_rssi_c);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "interference_data_flag:",
			 le32_to_cpu(general->interference_data_flag),
			 accum_general->interference_data_flag,
			 delta_general->interference_data_flag,
			 max_general->interference_data_flag);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "channel_load:",
			 le32_to_cpu(general->channel_load),
			 accum_general->channel_load,
			 delta_general->channel_load,
			 max_general->channel_load);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "dsp_false_alarms:",
			 le32_to_cpu(general->dsp_false_alarms),
			 accum_general->dsp_false_alarms,
			 delta_general->dsp_false_alarms,
			 max_general->dsp_false_alarms);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "beacon_rssi_a:",
			 le32_to_cpu(general->beacon_rssi_a),
			 accum_general->beacon_rssi_a,
			 delta_general->beacon_rssi_a,
			 max_general->beacon_rssi_a);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "beacon_rssi_b:",
			 le32_to_cpu(general->beacon_rssi_b),
			 accum_general->beacon_rssi_b,
			 delta_general->beacon_rssi_b,
			 max_general->beacon_rssi_b);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "beacon_rssi_c:",
			 le32_to_cpu(general->beacon_rssi_c),
			 accum_general->beacon_rssi_c,
			 delta_general->beacon_rssi_c,
			 max_general->beacon_rssi_c);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "beacon_energy_a:",
			 le32_to_cpu(general->beacon_energy_a),
			 accum_general->beacon_energy_a,
			 delta_general->beacon_energy_a,
			 max_general->beacon_energy_a);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "beacon_energy_b:",
			 le32_to_cpu(general->beacon_energy_b),
			 accum_general->beacon_energy_b,
			 delta_general->beacon_energy_b,
			 max_general->beacon_energy_b);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "beacon_energy_c:",
			 le32_to_cpu(general->beacon_energy_c),
			 accum_general->beacon_energy_c,
			 delta_general->beacon_energy_c,
			 max_general->beacon_energy_c);

	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_header, "Statistics_Rx - OFDM_HT:");
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "plcp_err:",
			 le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
			 delta_ht->plcp_err, max_ht->plcp_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "overrun_err:",
			 le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
			 delta_ht->overrun_err, max_ht->overrun_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "early_overrun_err:",
			 le32_to_cpu(ht->early_overrun_err),
			 accum_ht->early_overrun_err,
			 delta_ht->early_overrun_err,
			 max_ht->early_overrun_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "crc32_good:",
			 le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
			 delta_ht->crc32_good, max_ht->crc32_good);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "crc32_err:",
			 le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
			 delta_ht->crc32_err, max_ht->crc32_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "mh_format_err:",
			 le32_to_cpu(ht->mh_format_err),
			 accum_ht->mh_format_err,
			 delta_ht->mh_format_err, max_ht->mh_format_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "agg_crc32_good:",
			 le32_to_cpu(ht->agg_crc32_good),
			 accum_ht->agg_crc32_good,
			 delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "agg_mpdu_cnt:",
			 le32_to_cpu(ht->agg_mpdu_cnt),
			 accum_ht->agg_mpdu_cnt,
			 delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "agg_cnt:",
			 le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
			 delta_ht->agg_cnt, max_ht->agg_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "unsupport_mcs:",
			 le32_to_cpu(ht->unsupport_mcs),
			 accum_ht->unsupport_mcs,
			 delta_ht->unsupport_mcs, max_ht->unsupport_mcs);

	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	kfree(buf);
	return ret;
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}

static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos)
{
1273
	struct iwl_priv *priv = file->private_data;
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	int pos = 0;
	char *buf;
	int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
	ssize_t ret;
	struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;

	if (!iwl_is_alive(priv))
		return -EAGAIN;

	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf) {
		IWL_ERR(priv, "Can not allocate Buffer\n");
		return -ENOMEM;
	}

	/* the statistic information display here is based on
	 * the last statistics notification from uCode
	 * might not reflect the current uCode activity
	 */
	tx = &priv->statistics.tx;
	accum_tx = &priv->accum_stats.tx;
	delta_tx = &priv->delta_stats.tx;
	max_tx = &priv->max_delta_stats.tx;

	pos += iwl_statistics_flag(priv, buf, bufsz);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_header, "Statistics_Tx:");
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "preamble:",
			 le32_to_cpu(tx->preamble_cnt),
			 accum_tx->preamble_cnt,
			 delta_tx->preamble_cnt, max_tx->preamble_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "rx_detected_cnt:",
			 le32_to_cpu(tx->rx_detected_cnt),
			 accum_tx->rx_detected_cnt,
			 delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "bt_prio_defer_cnt:",
			 le32_to_cpu(tx->bt_prio_defer_cnt),
			 accum_tx->bt_prio_defer_cnt,
			 delta_tx->bt_prio_defer_cnt,
			 max_tx->bt_prio_defer_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "bt_prio_kill_cnt:",
			 le32_to_cpu(tx->bt_prio_kill_cnt),
			 accum_tx->bt_prio_kill_cnt,
			 delta_tx->bt_prio_kill_cnt,
			 max_tx->bt_prio_kill_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "few_bytes_cnt:",
			 le32_to_cpu(tx->few_bytes_cnt),
			 accum_tx->few_bytes_cnt,
			 delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "cts_timeout:",
			 le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
			 delta_tx->cts_timeout, max_tx->cts_timeout);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "ack_timeout:",
			 le32_to_cpu(tx->ack_timeout),
			 accum_tx->ack_timeout,
			 delta_tx->ack_timeout, max_tx->ack_timeout);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "expected_ack_cnt:",
			 le32_to_cpu(tx->expected_ack_cnt),
			 accum_tx->expected_ack_cnt,
			 delta_tx->expected_ack_cnt,
			 max_tx->expected_ack_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "actual_ack_cnt:",
			 le32_to_cpu(tx->actual_ack_cnt),
			 accum_tx->actual_ack_cnt,
			 delta_tx->actual_ack_cnt,
			 max_tx->actual_ack_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "dump_msdu_cnt:",
			 le32_to_cpu(tx->dump_msdu_cnt),
			 accum_tx->dump_msdu_cnt,
			 delta_tx->dump_msdu_cnt,
			 max_tx->dump_msdu_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "abort_nxt_frame_mismatch:",
			 le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
			 accum_tx->burst_abort_next_frame_mismatch_cnt,
			 delta_tx->burst_abort_next_frame_mismatch_cnt,
			 max_tx->burst_abort_next_frame_mismatch_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "abort_missing_nxt_frame:",
			 le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
			 accum_tx->burst_abort_missing_next_frame_cnt,
			 delta_tx->burst_abort_missing_next_frame_cnt,
			 max_tx->burst_abort_missing_next_frame_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "cts_timeout_collision:",
			 le32_to_cpu(tx->cts_timeout_collision),
			 accum_tx->cts_timeout_collision,
			 delta_tx->cts_timeout_collision,
			 max_tx->cts_timeout_collision);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "ack_ba_timeout_collision:",
			 le32_to_cpu(tx->ack_or_ba_timeout_collision),
			 accum_tx->ack_or_ba_timeout_collision,
			 delta_tx->ack_or_ba_timeout_collision,
			 max_tx->ack_or_ba_timeout_collision);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "agg ba_timeout:",
			 le32_to_cpu(tx->agg.ba_timeout),
			 accum_tx->agg.ba_timeout,
			 delta_tx->agg.ba_timeout,
			 max_tx->agg.ba_timeout);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "agg ba_resched_frames:",
			 le32_to_cpu(tx->agg.ba_reschedule_frames),
			 accum_tx->agg.ba_reschedule_frames,
			 delta_tx->agg.ba_reschedule_frames,
			 max_tx->agg.ba_reschedule_frames);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "agg scd_query_agg_frame:",
			 le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
			 accum_tx->agg.scd_query_agg_frame_cnt,
			 delta_tx->agg.scd_query_agg_frame_cnt,
			 max_tx->agg.scd_query_agg_frame_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "agg scd_query_no_agg:",
			 le32_to_cpu(tx->agg.scd_query_no_agg),
			 accum_tx->agg.scd_query_no_agg,
			 delta_tx->agg.scd_query_no_agg,
			 max_tx->agg.scd_query_no_agg);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "agg scd_query_agg:",
			 le32_to_cpu(tx->agg.scd_query_agg),
			 accum_tx->agg.scd_query_agg,
			 delta_tx->agg.scd_query_agg,
			 max_tx->agg.scd_query_agg);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "agg scd_query_mismatch:",
			 le32_to_cpu(tx->agg.scd_query_mismatch),
			 accum_tx->agg.scd_query_mismatch,
			 delta_tx->agg.scd_query_mismatch,
			 max_tx->agg.scd_query_mismatch);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "agg frame_not_ready:",
			 le32_to_cpu(tx->agg.frame_not_ready),
			 accum_tx->agg.frame_not_ready,
			 delta_tx->agg.frame_not_ready,
			 max_tx->agg.frame_not_ready);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "agg underrun:",
			 le32_to_cpu(tx->agg.underrun),
			 accum_tx->agg.underrun,
			 delta_tx->agg.underrun, max_tx->agg.underrun);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "agg bt_prio_kill:",
			 le32_to_cpu(tx->agg.bt_prio_kill),
			 accum_tx->agg.bt_prio_kill,
			 delta_tx->agg.bt_prio_kill,
			 max_tx->agg.bt_prio_kill);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "agg rx_ba_rsp_cnt:",
			 le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
			 accum_tx->agg.rx_ba_rsp_cnt,
			 delta_tx->agg.rx_ba_rsp_cnt,
			 max_tx->agg.rx_ba_rsp_cnt);

	if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
		pos += scnprintf(buf + pos, bufsz - pos,
			"tx power: (1/2 dB step)\n");
		if ((priv->cfg->valid_tx_ant & ANT_A) && tx->tx_power.ant_a)
			pos += scnprintf(buf + pos, bufsz - pos,
					fmt_hex, "antenna A:",
					tx->tx_power.ant_a);
		if ((priv->cfg->valid_tx_ant & ANT_B) && tx->tx_power.ant_b)
			pos += scnprintf(buf + pos, bufsz - pos,
					fmt_hex, "antenna B:",
					tx->tx_power.ant_b);
		if ((priv->cfg->valid_tx_ant & ANT_C) && tx->tx_power.ant_c)
			pos += scnprintf(buf + pos, bufsz - pos,
					fmt_hex, "antenna C:",
					tx->tx_power.ant_c);
	}
	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	kfree(buf);
	return ret;
1458 1459 1460 1461 1462 1463
}

static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos)
{
1464
	struct iwl_priv *priv = file->private_data;
1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593
	int pos = 0;
	char *buf;
	int bufsz = sizeof(struct statistics_general) * 10 + 300;
	ssize_t ret;
	struct statistics_general_common *general, *accum_general;
	struct statistics_general_common *delta_general, *max_general;
	struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
	struct statistics_div *div, *accum_div, *delta_div, *max_div;

	if (!iwl_is_alive(priv))
		return -EAGAIN;

	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf) {
		IWL_ERR(priv, "Can not allocate Buffer\n");
		return -ENOMEM;
	}

	/* the statistic information display here is based on
	 * the last statistics notification from uCode
	 * might not reflect the current uCode activity
	 */
	general = &priv->statistics.common;
	dbg = &priv->statistics.common.dbg;
	div = &priv->statistics.common.div;
	accum_general = &priv->accum_stats.common;
	accum_dbg = &priv->accum_stats.common.dbg;
	accum_div = &priv->accum_stats.common.div;
	delta_general = &priv->delta_stats.common;
	max_general = &priv->max_delta_stats.common;
	delta_dbg = &priv->delta_stats.common.dbg;
	max_dbg = &priv->max_delta_stats.common.dbg;
	delta_div = &priv->delta_stats.common.div;
	max_div = &priv->max_delta_stats.common.div;

	pos += iwl_statistics_flag(priv, buf, bufsz);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_header, "Statistics_General:");
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_value, "temperature:",
			 le32_to_cpu(general->temperature));
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_value, "temperature_m:",
			 le32_to_cpu(general->temperature_m));
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_value, "ttl_timestamp:",
			 le32_to_cpu(general->ttl_timestamp));
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "burst_check:",
			 le32_to_cpu(dbg->burst_check),
			 accum_dbg->burst_check,
			 delta_dbg->burst_check, max_dbg->burst_check);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "burst_count:",
			 le32_to_cpu(dbg->burst_count),
			 accum_dbg->burst_count,
			 delta_dbg->burst_count, max_dbg->burst_count);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "wait_for_silence_timeout_count:",
			 le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
			 accum_dbg->wait_for_silence_timeout_cnt,
			 delta_dbg->wait_for_silence_timeout_cnt,
			 max_dbg->wait_for_silence_timeout_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "sleep_time:",
			 le32_to_cpu(general->sleep_time),
			 accum_general->sleep_time,
			 delta_general->sleep_time, max_general->sleep_time);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "slots_out:",
			 le32_to_cpu(general->slots_out),
			 accum_general->slots_out,
			 delta_general->slots_out, max_general->slots_out);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "slots_idle:",
			 le32_to_cpu(general->slots_idle),
			 accum_general->slots_idle,
			 delta_general->slots_idle, max_general->slots_idle);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "tx_on_a:",
			 le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
			 delta_div->tx_on_a, max_div->tx_on_a);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "tx_on_b:",
			 le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
			 delta_div->tx_on_b, max_div->tx_on_b);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "exec_time:",
			 le32_to_cpu(div->exec_time), accum_div->exec_time,
			 delta_div->exec_time, max_div->exec_time);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "probe_time:",
			 le32_to_cpu(div->probe_time), accum_div->probe_time,
			 delta_div->probe_time, max_div->probe_time);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "rx_enable_counter:",
			 le32_to_cpu(general->rx_enable_counter),
			 accum_general->rx_enable_counter,
			 delta_general->rx_enable_counter,
			 max_general->rx_enable_counter);
	pos += scnprintf(buf + pos, bufsz - pos,
			 fmt_table, "num_of_sos_states:",
			 le32_to_cpu(general->num_of_sos_states),
			 accum_general->num_of_sos_states,
			 delta_general->num_of_sos_states,
			 max_general->num_of_sos_states);
	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	kfree(buf);
	return ret;
}

static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
	int pos = 0;
	char *buf;
	int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
	ssize_t ret;
	struct statistics_bt_activity *bt, *accum_bt;

	if (!iwl_is_alive(priv))
		return -EAGAIN;

	if (!priv->bt_enable_flag)
		return -EINVAL;

	/* make request to uCode to retrieve statistics information */
1594
	mutex_lock(&priv->shrd->mutex);
1595
	ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
1596
	mutex_unlock(&priv->shrd->mutex);
1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686

	if (ret) {
		IWL_ERR(priv,
			"Error sending statistics request: %zd\n", ret);
		return -EAGAIN;
	}
	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf) {
		IWL_ERR(priv, "Can not allocate Buffer\n");
		return -ENOMEM;
	}

	/*
	 * the statistic information display here is based on
	 * the last statistics notification from uCode
	 * might not reflect the current uCode activity
	 */
	bt = &priv->statistics.bt_activity;
	accum_bt = &priv->accum_stats.bt_activity;

	pos += iwl_statistics_flag(priv, buf, bufsz);
	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
	pos += scnprintf(buf + pos, bufsz - pos,
			"\t\t\tcurrent\t\t\taccumulative\n");
	pos += scnprintf(buf + pos, bufsz - pos,
			 "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(bt->hi_priority_tx_req_cnt),
			 accum_bt->hi_priority_tx_req_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
			 le32_to_cpu(bt->hi_priority_tx_denied_cnt),
			 accum_bt->hi_priority_tx_denied_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(bt->lo_priority_tx_req_cnt),
			 accum_bt->lo_priority_tx_req_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
			 le32_to_cpu(bt->lo_priority_tx_denied_cnt),
			 accum_bt->lo_priority_tx_denied_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(bt->hi_priority_rx_req_cnt),
			 accum_bt->hi_priority_rx_req_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
			 le32_to_cpu(bt->hi_priority_rx_denied_cnt),
			 accum_bt->hi_priority_rx_denied_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(bt->lo_priority_rx_req_cnt),
			 accum_bt->lo_priority_rx_req_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
			 le32_to_cpu(bt->lo_priority_rx_denied_cnt),
			 accum_bt->lo_priority_rx_denied_cnt);

	pos += scnprintf(buf + pos, bufsz - pos,
			 "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(priv->statistics.num_bt_kills),
			 priv->statistics.accum_num_bt_kills);

	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	kfree(buf);
	return ret;
}

static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
	int pos = 0;
	char *buf;
	int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
		(sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
	ssize_t ret;

	if (!iwl_is_alive(priv))
		return -EAGAIN;

	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf) {
		IWL_ERR(priv, "Can not allocate Buffer\n");
		return -ENOMEM;
	}

	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1687
			 priv->reply_tx_stats.pp_delay);
1688 1689
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1690
			 priv->reply_tx_stats.pp_few_bytes);
1691 1692
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1693
			 priv->reply_tx_stats.pp_bt_prio);
1694 1695
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1696
			 priv->reply_tx_stats.pp_quiet_period);
1697 1698
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1699
			 priv->reply_tx_stats.pp_calc_ttak);
1700 1701 1702
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
			 iwl_get_tx_fail_reason(
				TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1703
			 priv->reply_tx_stats.int_crossed_retry);
1704 1705
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1706
			 priv->reply_tx_stats.short_limit);
1707 1708
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1709
			 priv->reply_tx_stats.long_limit);
1710 1711
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1712
			 priv->reply_tx_stats.fifo_underrun);
1713 1714
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1715
			 priv->reply_tx_stats.drain_flow);
1716 1717
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1718
			 priv->reply_tx_stats.rfkill_flush);
1719 1720
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1721
			 priv->reply_tx_stats.life_expire);
1722 1723
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1724
			 priv->reply_tx_stats.dest_ps);
1725 1726
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1727
			 priv->reply_tx_stats.host_abort);
1728 1729
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1730
			 priv->reply_tx_stats.pp_delay);
1731 1732
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1733
			 priv->reply_tx_stats.sta_invalid);
1734 1735
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1736
			 priv->reply_tx_stats.frag_drop);
1737 1738
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1739
			 priv->reply_tx_stats.tid_disable);
1740 1741
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1742
			 priv->reply_tx_stats.fifo_flush);
1743 1744 1745
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
			 iwl_get_tx_fail_reason(
				TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1746
			 priv->reply_tx_stats.insuff_cf_poll);
1747 1748
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1749
			 priv->reply_tx_stats.fail_hw_drop);
1750 1751 1752
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
			 iwl_get_tx_fail_reason(
				TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1753
			 priv->reply_tx_stats.sta_color_mismatch);
1754
	pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1755
			 priv->reply_tx_stats.unknown);
1756 1757 1758 1759 1760 1761

	pos += scnprintf(buf + pos, bufsz - pos,
			 "\nStatistics_Agg_TX_Error:\n");

	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1762
			 priv->reply_agg_tx_stats.underrun);
1763 1764
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1765
			 priv->reply_agg_tx_stats.bt_prio);
1766 1767
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1768
			 priv->reply_agg_tx_stats.few_bytes);
1769 1770
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
1771
			 priv->reply_agg_tx_stats.abort);
1772 1773 1774
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
			 iwl_get_agg_tx_fail_reason(
				AGG_TX_STATE_LAST_SENT_TTL_MSK),
1775
			 priv->reply_agg_tx_stats.last_sent_ttl);
1776 1777 1778
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
			 iwl_get_agg_tx_fail_reason(
				AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK),
1779
			 priv->reply_agg_tx_stats.last_sent_try);
1780 1781 1782
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
			 iwl_get_agg_tx_fail_reason(
				AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
1783
			 priv->reply_agg_tx_stats.last_sent_bt_kill);
1784 1785
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
1786
			 priv->reply_agg_tx_stats.scd_query);
1787 1788 1789
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
			 iwl_get_agg_tx_fail_reason(
				AGG_TX_STATE_TEST_BAD_CRC32_MSK),
1790
			 priv->reply_agg_tx_stats.bad_crc32);
1791 1792
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
1793
			 priv->reply_agg_tx_stats.response);
1794 1795
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
1796
			 priv->reply_agg_tx_stats.dump_tx);
1797 1798
	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
1799
			 priv->reply_agg_tx_stats.delay_tx);
1800
	pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1801
			 priv->reply_agg_tx_stats.unknown);
1802 1803 1804 1805

	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	kfree(buf);
	return ret;
1806 1807
}

1808 1809 1810 1811
static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos) {

1812
	struct iwl_priv *priv = file->private_data;
1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892
	int pos = 0;
	int cnt = 0;
	char *buf;
	int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
	ssize_t ret;
	struct iwl_sensitivity_data *data;

	data = &priv->sensitivity_data;
	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf) {
		IWL_ERR(priv, "Can not allocate Buffer\n");
		return -ENOMEM;
	}

	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
			data->auto_corr_ofdm);
	pos += scnprintf(buf + pos, bufsz - pos,
			"auto_corr_ofdm_mrc:\t\t %u\n",
			data->auto_corr_ofdm_mrc);
	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
			data->auto_corr_ofdm_x1);
	pos += scnprintf(buf + pos, bufsz - pos,
			"auto_corr_ofdm_mrc_x1:\t\t %u\n",
			data->auto_corr_ofdm_mrc_x1);
	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
			data->auto_corr_cck);
	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
			data->auto_corr_cck_mrc);
	pos += scnprintf(buf + pos, bufsz - pos,
			"last_bad_plcp_cnt_ofdm:\t\t %u\n",
			data->last_bad_plcp_cnt_ofdm);
	pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
			data->last_fa_cnt_ofdm);
	pos += scnprintf(buf + pos, bufsz - pos,
			"last_bad_plcp_cnt_cck:\t\t %u\n",
			data->last_bad_plcp_cnt_cck);
	pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
			data->last_fa_cnt_cck);
	pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
			data->nrg_curr_state);
	pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
			data->nrg_prev_state);
	pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
	for (cnt = 0; cnt < 10; cnt++) {
		pos += scnprintf(buf + pos, bufsz - pos, " %u",
				data->nrg_value[cnt]);
	}
	pos += scnprintf(buf + pos, bufsz - pos, "\n");
	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
	for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
		pos += scnprintf(buf + pos, bufsz - pos, " %u",
				data->nrg_silence_rssi[cnt]);
	}
	pos += scnprintf(buf + pos, bufsz - pos, "\n");
	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
			data->nrg_silence_ref);
	pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
			data->nrg_energy_idx);
	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
			data->nrg_silence_idx);
	pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
			data->nrg_th_cck);
	pos += scnprintf(buf + pos, bufsz - pos,
			"nrg_auto_corr_silence_diff:\t %u\n",
			data->nrg_auto_corr_silence_diff);
	pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
			data->num_in_cck_no_fa);
	pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
			data->nrg_th_ofdm);

	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	kfree(buf);
	return ret;
}


static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos) {

1893
	struct iwl_priv *priv = file->private_data;
1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946
	int pos = 0;
	int cnt = 0;
	char *buf;
	int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
	ssize_t ret;
	struct iwl_chain_noise_data *data;

	data = &priv->chain_noise_data;
	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf) {
		IWL_ERR(priv, "Can not allocate Buffer\n");
		return -ENOMEM;
	}

	pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
			data->active_chains);
	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
			data->chain_noise_a);
	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
			data->chain_noise_b);
	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
			data->chain_noise_c);
	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
			data->chain_signal_a);
	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
			data->chain_signal_b);
	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
			data->chain_signal_c);
	pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
			data->beacon_count);

	pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
	for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
		pos += scnprintf(buf + pos, bufsz - pos, " %u",
				data->disconn_array[cnt]);
	}
	pos += scnprintf(buf + pos, bufsz - pos, "\n");
	pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
	for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
		pos += scnprintf(buf + pos, bufsz - pos, " %u",
				data->delta_gain_code[cnt]);
	}
	pos += scnprintf(buf + pos, bufsz - pos, "\n");
	pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
			data->radio_write);
	pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
			data->state);

	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	kfree(buf);
	return ret;
}

1947 1948 1949 1950
static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
						    char __user *user_buf,
						    size_t count, loff_t *ppos)
{
1951
	struct iwl_priv *priv = file->private_data;
1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969
	char buf[60];
	int pos = 0;
	const size_t bufsz = sizeof(buf);
	u32 pwrsave_status;

	pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
			CSR_GP_REG_POWER_SAVE_STATUS_MSK;

	pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
	pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
		(pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
		(pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
		(pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
		"error");

	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

1970
static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986
					 const char __user *user_buf,
					 size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = file->private_data;
	char buf[8];
	int buf_size;
	int clear;

	memset(buf, 0, sizeof(buf));
	buf_size = min(count, sizeof(buf) -  1);
	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;
	if (sscanf(buf, "%d", &clear) != 1)
		return -EFAULT;

	/* make request to uCode to retrieve statistics information */
1987
	mutex_lock(&priv->shrd->mutex);
1988
	iwl_send_statistics_request(priv, CMD_SYNC, true);
1989
	mutex_unlock(&priv->shrd->mutex);
1990 1991 1992 1993

	return count;
}

1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
static ssize_t iwl_dbgfs_csr_write(struct file *file,
					 const char __user *user_buf,
					 size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = file->private_data;
	char buf[8];
	int buf_size;
	int csr;

	memset(buf, 0, sizeof(buf));
	buf_size = min(count, sizeof(buf) -  1);
	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;
	if (sscanf(buf, "%d", &csr) != 1)
		return -EFAULT;

2010
	iwl_dump_csr(priv);
2011 2012 2013 2014

	return count;
}

2015 2016 2017 2018
static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos) {

2019
	struct iwl_priv *priv = file->private_data;
2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032
	int pos = 0;
	char buf[128];
	const size_t bufsz = sizeof(buf);

	pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
			priv->event_log.ucode_trace ? "On" : "Off");
	pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
			priv->event_log.non_wraps_count);
	pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
			priv->event_log.wraps_once_count);
	pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
			priv->event_log.wraps_more_count);

2033
	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064
}

static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
					 const char __user *user_buf,
					 size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = file->private_data;
	char buf[8];
	int buf_size;
	int trace;

	memset(buf, 0, sizeof(buf));
	buf_size = min(count, sizeof(buf) -  1);
	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;
	if (sscanf(buf, "%d", &trace) != 1)
		return -EFAULT;

	if (trace) {
		priv->event_log.ucode_trace = true;
		/* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
		mod_timer(&priv->ucode_trace,
			jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
	} else {
		priv->event_log.ucode_trace = false;
		del_timer_sync(&priv->ucode_trace);
	}

	return count;
}

2065 2066 2067 2068
static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
					 char __user *user_buf,
					 size_t count, loff_t *ppos) {

2069
	struct iwl_priv *priv = file->private_data;
2070 2071 2072
	int len = 0;
	char buf[20];

2073 2074
	len = sprintf(buf, "0x%04X\n",
		le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
2075 2076 2077 2078 2079 2080 2081
	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}

static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
						char __user *user_buf,
						size_t count, loff_t *ppos) {

2082
	struct iwl_priv *priv = file->private_data;
2083 2084 2085 2086
	int len = 0;
	char buf[20];

	len = sprintf(buf, "0x%04X\n",
2087
		le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
2088 2089 2090
	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}

2091 2092 2093 2094
static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
					 char __user *user_buf,
					 size_t count, loff_t *ppos)
{
2095
	struct iwl_priv *priv = file->private_data;
2096 2097 2098 2099
	char *buf;
	int pos = 0;
	ssize_t ret = -EFAULT;

2100 2101 2102 2103 2104
	ret = pos = iwl_dump_fh(priv, &buf, true);
	if (buf) {
		ret = simple_read_from_buffer(user_buf,
					      count, ppos, buf, pos);
		kfree(buf);
2105 2106 2107 2108 2109
	}

	return ret;
}

2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121
static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos) {

	struct iwl_priv *priv = file->private_data;
	int pos = 0;
	char buf[12];
	const size_t bufsz = sizeof(buf);

	pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
			priv->missed_beacon_threshold);

2122
	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150
}

static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
					 const char __user *user_buf,
					 size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = file->private_data;
	char buf[8];
	int buf_size;
	int missed;

	memset(buf, 0, sizeof(buf));
	buf_size = min(count, sizeof(buf) -  1);
	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;
	if (sscanf(buf, "%d", &missed) != 1)
		return -EINVAL;

	if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
	    missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
		priv->missed_beacon_threshold =
			IWL_MISSED_BEACON_THRESHOLD_DEF;
	else
		priv->missed_beacon_threshold = missed;

	return count;
}

2151 2152 2153 2154
static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos) {

2155
	struct iwl_priv *priv = file->private_data;
2156 2157 2158 2159 2160
	int pos = 0;
	char buf[12];
	const size_t bufsz = sizeof(buf);

	pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
2161
			priv->cfg->base_params->plcp_delta_threshold);
2162

2163
	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180
}

static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
					const char __user *user_buf,
					size_t count, loff_t *ppos) {

	struct iwl_priv *priv = file->private_data;
	char buf[8];
	int buf_size;
	int plcp;

	memset(buf, 0, sizeof(buf));
	buf_size = min(count, sizeof(buf) -  1);
	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;
	if (sscanf(buf, "%d", &plcp) != 1)
		return -EINVAL;
2181
	if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
2182
		(plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
2183
		priv->cfg->base_params->plcp_delta_threshold =
2184
			IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
2185
	else
2186
		priv->cfg->base_params->plcp_delta_threshold = plcp;
2187 2188 2189
	return count;
}

2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219
static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos) {

	struct iwl_priv *priv = file->private_data;
	int i, pos = 0;
	char buf[300];
	const size_t bufsz = sizeof(buf);
	struct iwl_force_reset *force_reset;

	for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
		force_reset = &priv->force_reset[i];
		pos += scnprintf(buf + pos, bufsz - pos,
				"Force reset method %d\n", i);
		pos += scnprintf(buf + pos, bufsz - pos,
				"\tnumber of reset request: %d\n",
				force_reset->reset_request_count);
		pos += scnprintf(buf + pos, bufsz - pos,
				"\tnumber of reset request success: %d\n",
				force_reset->reset_success_count);
		pos += scnprintf(buf + pos, bufsz - pos,
				"\tnumber of reset request reject: %d\n",
				force_reset->reset_reject_count);
		pos += scnprintf(buf + pos, bufsz - pos,
				"\treset duration: %lu\n",
				force_reset->reset_duration);
	}
	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237
static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
					const char __user *user_buf,
					size_t count, loff_t *ppos) {

	struct iwl_priv *priv = file->private_data;
	char buf[8];
	int buf_size;
	int reset, ret;

	memset(buf, 0, sizeof(buf));
	buf_size = min(count, sizeof(buf) -  1);
	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;
	if (sscanf(buf, "%d", &reset) != 1)
		return -EINVAL;
	switch (reset) {
	case IWL_RF_RESET:
	case IWL_FW_RESET:
2238
		ret = iwl_force_reset(priv, reset, true);
2239 2240 2241 2242 2243 2244 2245
		break;
	default:
		return -EINVAL;
	}
	return ret ? ret : count;
}

2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264
static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
					const char __user *user_buf,
					size_t count, loff_t *ppos) {

	struct iwl_priv *priv = file->private_data;
	char buf[8];
	int buf_size;
	int flush;

	memset(buf, 0, sizeof(buf));
	buf_size = min(count, sizeof(buf) -  1);
	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;
	if (sscanf(buf, "%d", &flush) != 1)
		return -EINVAL;

	if (iwl_is_rfkill(priv))
		return -EFAULT;

2265
	iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
2266 2267 2268 2269

	return count;
}

2270
static ssize_t iwl_dbgfs_wd_timeout_write(struct file *file,
2271 2272 2273 2274 2275 2276
					const char __user *user_buf,
					size_t count, loff_t *ppos) {

	struct iwl_priv *priv = file->private_data;
	char buf[8];
	int buf_size;
2277
	int timeout;
2278 2279 2280 2281 2282

	memset(buf, 0, sizeof(buf));
	buf_size = min(count, sizeof(buf) -  1);
	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;
2283
	if (sscanf(buf, "%d", &timeout) != 1)
2284
		return -EINVAL;
2285 2286
	if (timeout < 0 || timeout > IWL_MAX_WD_TIMEOUT)
		timeout = IWL_DEF_WD_TIMEOUT;
2287

2288 2289
	priv->cfg->base_params->wd_timeout = timeout;
	iwl_setup_watchdog(priv);
2290 2291 2292
	return count;
}

2293 2294 2295 2296 2297 2298 2299 2300 2301
static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos) {

	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
	int pos = 0;
	char buf[200];
	const size_t bufsz = sizeof(buf);

2302 2303
	if (!priv->bt_enable_flag) {
		pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2304
		return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2305 2306 2307
	}
	pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
		priv->bt_enable_flag);
2308 2309 2310 2311
	pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
		priv->bt_full_concurrent ? "full concurrency" : "3-wire");
	pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
			 "last traffic notif: %d\n",
2312
		priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2313
	pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2314 2315 2316
			 "kill_ack_mask: %x, kill_cts_mask: %x\n",
		priv->bt_ch_announce, priv->kill_ack_mask,
		priv->kill_cts_mask);
2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334

	pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
	switch (priv->bt_traffic_load) {
	case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
		pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
		break;
	case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
		pos += scnprintf(buf + pos, bufsz - pos, "High\n");
		break;
	case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
		pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
		break;
	case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
	default:
		pos += scnprintf(buf + pos, bufsz - pos, "None\n");
		break;
	}

2335
	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2336 2337
}

2338 2339 2340 2341 2342 2343 2344 2345 2346 2347
static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;

	int pos = 0;
	char buf[40];
	const size_t bufsz = sizeof(buf);

2348 2349 2350 2351 2352 2353 2354 2355
	if (priv->cfg->ht_params)
		pos += scnprintf(buf + pos, bufsz - pos,
			 "use %s for aggregation\n",
			 (priv->cfg->ht_params->use_rts_for_aggregation) ?
				"rts/cts" : "cts-to-self");
	else
		pos += scnprintf(buf + pos, bufsz - pos, "N/A");

2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367
	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
					const char __user *user_buf,
					size_t count, loff_t *ppos) {

	struct iwl_priv *priv = file->private_data;
	char buf[8];
	int buf_size;
	int rts;

2368 2369 2370
	if (!priv->cfg->ht_params)
		return -EINVAL;

2371 2372 2373 2374 2375 2376 2377
	memset(buf, 0, sizeof(buf));
	buf_size = min(count, sizeof(buf) -  1);
	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;
	if (sscanf(buf, "%d", &rts) != 1)
		return -EINVAL;
	if (rts)
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		priv->cfg->ht_params->use_rts_for_aggregation = true;
2379
	else
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		priv->cfg->ht_params->use_rts_for_aggregation = false;
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	return count;
}

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DEBUGFS_READ_FILE_OPS(rx_statistics);
DEBUGFS_READ_FILE_OPS(tx_statistics);
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DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
DEBUGFS_READ_FILE_OPS(ucode_general_stats);
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DEBUGFS_READ_FILE_OPS(sensitivity);
DEBUGFS_READ_FILE_OPS(chain_noise);
2391
DEBUGFS_READ_FILE_OPS(power_save_status);
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DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
2394
DEBUGFS_WRITE_FILE_OPS(csr);
2395
DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
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DEBUGFS_READ_FILE_OPS(fh_reg);
2397
DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2398
DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2399
DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
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DEBUGFS_READ_FILE_OPS(rxon_flags);
DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2402
DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2403
DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2404
DEBUGFS_WRITE_FILE_OPS(wd_timeout);
2405
DEBUGFS_READ_FILE_OPS(bt_traffic);
2406
DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2407
DEBUGFS_READ_FILE_OPS(reply_tx_error);
2408

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/*
 * Create the debugfs files and directories
 *
 */
int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
{
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	struct dentry *phyd = priv->hw->wiphy->debugfsdir;
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	struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
2417

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	dir_drv = debugfs_create_dir(name, phyd);
	if (!dir_drv)
		return -ENOMEM;
2421

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	priv->debugfs_dir = dir_drv;

	dir_data = debugfs_create_dir("data", dir_drv);
	if (!dir_data)
		goto err;
	dir_rf = debugfs_create_dir("rf", dir_drv);
	if (!dir_rf)
		goto err;
	dir_debug = debugfs_create_dir("debug", dir_drv);
	if (!dir_debug)
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		goto err;

2434 2435
	DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
	DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
Johannes Berg's avatar
Johannes Berg committed
2436
	DEBUGFS_ADD_FILE(wowlan_sram, dir_data, S_IRUSR);
2437 2438 2439
	DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
	DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
	DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
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	DEBUGFS_ADD_FILE(rx_handlers, dir_data, S_IWUSR | S_IRUSR);
2441
	DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
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	DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
	DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
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	DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
	DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
	DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
	DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
	DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
	DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
	DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
	DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
	DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
	DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
	DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
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	DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
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	DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
	DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
	DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
2459
	DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
2460
	DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
2461

2462 2463
	DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
	DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
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	DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
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	DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
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	DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
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	DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
	DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
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	DEBUGFS_ADD_FILE(wd_timeout, dir_debug, S_IWUSR);
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	if (iwl_advanced_bt_coexist(priv))
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		DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
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	DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
			 &priv->disable_sens_cal);
	DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
			 &priv->disable_chain_noise_cal);
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	if (iwl_trans_dbgfs_register(trans(priv), dir_debug))
		goto err;
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	return 0;

err:
2482
	IWL_ERR(priv, "Can't create the debugfs directory\n");
2483
	iwl_dbgfs_unregister(priv);
2484
	return -ENOMEM;
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}

/**
 * Remove the debugfs files and directories
 *
 */
void iwl_dbgfs_unregister(struct iwl_priv *priv)
{
2493
	if (!priv->debugfs_dir)
2494 2495
		return;

2496 2497
	debugfs_remove_recursive(priv->debugfs_dir);
	priv->debugfs_dir = NULL;
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}


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