iwl-debugfs.c 65.8 KB
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/******************************************************************************
 *
 * GPL LICENSE SUMMARY
 *
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 * Copyright(c) 2008 - 2009 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
 *****************************************************************************/

#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-calib.h"
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/* create and remove of files */
#define DEBUGFS_ADD_DIR(name, parent) do {                              \
	dbgfs->dir_##name = debugfs_create_dir(#name, parent);          \
	if (!(dbgfs->dir_##name))                                       \
		goto err; 						\
} while (0)

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#define DEBUGFS_ADD_FILE(name, parent, mode) do {                       \
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	dbgfs->dbgfs_##parent##_files.file_##name =                     \
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	debugfs_create_file(#name, mode,                                \
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				dbgfs->dir_##parent, priv,              \
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				&iwl_dbgfs_##name##_ops);               \
	if (!(dbgfs->dbgfs_##parent##_files.file_##name))               \
		goto err;                                               \
} while (0)

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#define DEBUGFS_ADD_BOOL(name, parent, ptr) do {                        \
	dbgfs->dbgfs_##parent##_files.file_##name =                     \
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	debugfs_create_bool(#name, S_IWUSR | S_IRUSR,                   \
			    dbgfs->dir_##parent, ptr);                  \
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	if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name)		\
			|| !dbgfs->dbgfs_##parent##_files.file_##name)	\
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		goto err;                                               \
} while (0)

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#define DEBUGFS_ADD_X32(name, parent, ptr) do {                        \
	dbgfs->dbgfs_##parent##_files.file_##name =                     \
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	debugfs_create_x32(#name, S_IRUSR, dbgfs->dir_##parent, ptr);   \
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	if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name)		\
			|| !dbgfs->dbgfs_##parent##_files.file_##name)	\
		goto err;                                               \
} while (0)

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#define DEBUGFS_REMOVE(name)  do {              \
	debugfs_remove(name);                   \
	name = NULL;                            \
} while (0);

/* 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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#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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#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,                            \
};


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

	struct iwl_priv *priv = (struct iwl_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) {

	struct iwl_priv *priv = (struct iwl_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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#define BYTE1_MASK 0x000000ff;
#define BYTE2_MASK 0x0000ffff;
#define BYTE3_MASK 0x00ffffff;
static ssize_t iwl_dbgfs_sram_read(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos)
{
	u32 val;
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	char *buf;
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	ssize_t ret;
	int i;
	int pos = 0;
	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
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	size_t bufsz;
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	/* default is to dump the entire data segment */
	if (!priv->dbgfs->sram_offset && !priv->dbgfs->sram_len) {
		priv->dbgfs->sram_offset = 0x800000;
		if (priv->ucode_type == UCODE_INIT)
			priv->dbgfs->sram_len = priv->ucode_init_data.len;
		else
			priv->dbgfs->sram_len = priv->ucode_data.len;
	}
	bufsz =  30 + priv->dbgfs->sram_len * sizeof(char) * 10;
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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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			priv->dbgfs->sram_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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	for (i = priv->dbgfs->sram_len; i > 0; i -= 4) {
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		val = iwl_read_targ_mem(priv, priv->dbgfs->sram_offset + \
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					priv->dbgfs->sram_len - i);
		if (i < 4) {
			switch (i) {
			case 1:
				val &= BYTE1_MASK;
				break;
			case 2:
				val &= BYTE2_MASK;
				break;
			case 3:
				val &= BYTE3_MASK;
				break;
			}
		}
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		if (!(i % 16))
			pos += scnprintf(buf + pos, bufsz - pos, "\n");
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		pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
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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);
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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) {
		priv->dbgfs->sram_offset = offset;
		priv->dbgfs->sram_len = len;
	} else {
		priv->dbgfs->sram_offset = 0;
		priv->dbgfs->sram_len = 0;
	}

	return count;
}

static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
					size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
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	struct iwl_station_entry *station;
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	int max_sta = priv->hw_params.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];
		if (station->used) {
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			pos += scnprintf(buf + pos, bufsz - pos,
					"station %d:\ngeneral data:\n", i+1);
			pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n",
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					station->sta.sta.sta_id);
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			pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n",
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					station->sta.mode);
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			pos += scnprintf(buf + pos, bufsz - pos,
					"flags: 0x%x\n",
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					station->sta.station_flags_msk);
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			pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n");
			pos += scnprintf(buf + pos, bufsz - pos,
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					"seq_num\t\ttxq_id");
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			pos += scnprintf(buf + pos, bufsz - pos,
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					"\tframe_count\twait_for_ba\t");
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			pos += scnprintf(buf + pos, bufsz - pos,
					"start_idx\tbitmap0\t");
			pos += scnprintf(buf + pos, bufsz - pos,
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					"bitmap1\trate_n_flags");
			pos += scnprintf(buf + pos, bufsz - pos, "\n");
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			for (j = 0; j < MAX_TID_COUNT; j++) {
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				pos += scnprintf(buf + pos, bufsz - pos,
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						"[%d]:\t\t%u", j,
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						station->tid[j].seq_number);
				pos += scnprintf(buf + pos, bufsz - pos,
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						"\t%u\t\t%u\t\t%u\t\t",
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						station->tid[j].agg.txq_id,
						station->tid[j].agg.frame_count,
						station->tid[j].agg.wait_for_ba);
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				pos += scnprintf(buf + pos, bufsz - pos,
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						"%u\t%llu\t%u",
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						station->tid[j].agg.start_idx,
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						(unsigned long long)station->tid[j].agg.bitmap,
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						station->tid[j].agg.rate_n_flags);
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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;
	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
	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->eeprom_size;
	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_log_event_write(struct file *file,
					const char __user *user_buf,
					size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = file->private_data;
	u32 event_log_flag;
	char buf[8];
	int buf_size;

	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", &event_log_flag) != 1)
		return -EFAULT;
	if (event_log_flag == 1)
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		priv->cfg->ops->lib->dump_nic_event_log(priv);
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	return count;
}

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

	if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
		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",
					ieee80211_frequency_to_channel(
					channels[i].center_freq),
					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",
					ieee80211_frequency_to_channel(
					channels[i].center_freq),
					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) {

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

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

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static ssize_t iwl_dbgfs_interrupt_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;
	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;
	}

	pos += scnprintf(buf + pos, bufsz - pos,
			"Interrupt Statistics Report:\n");

	pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
		priv->isr_stats.hw);
	pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
		priv->isr_stats.sw);
	if (priv->isr_stats.sw > 0) {
		pos += scnprintf(buf + pos, bufsz - pos,
			"\tLast Restarting Code:  0x%X\n",
			priv->isr_stats.sw_err);
	}
#ifdef CONFIG_IWLWIFI_DEBUG
	pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
		priv->isr_stats.sch);
	pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
		priv->isr_stats.alive);
#endif
	pos += scnprintf(buf + pos, bufsz - pos,
		"HW RF KILL switch toggled:\t %u\n",
		priv->isr_stats.rfkill);

	pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
		priv->isr_stats.ctkill);

	pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
		priv->isr_stats.wakeup);

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

	pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
		priv->isr_stats.tx);

	pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
		priv->isr_stats.unhandled);

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

static ssize_t iwl_dbgfs_interrupt_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;
	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)
		iwl_clear_isr_stats(priv);

	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)
{
	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
	int pos = 0, i;
	char buf[256];
	const size_t bufsz = sizeof(buf);
	ssize_t ret;

	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,
				"AC[%d]\t%u\t%u\t%u\t%u\n", i,
				priv->qos_data.def_qos_parm.ac[i].cw_min,
				priv->qos_data.def_qos_parm.ac[i].cw_max,
				priv->qos_data.def_qos_parm.ac[i].aifsn,
				priv->qos_data.def_qos_parm.ac[i].edca_txop);
	}
	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	return ret;
}
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static ssize_t iwl_dbgfs_led_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[256];
	const size_t bufsz = sizeof(buf);
	ssize_t ret;

	pos += scnprintf(buf + pos, bufsz - pos,
			 "allow blinking: %s\n",
			 (priv->allow_blinking) ? "True" : "False");
	if (priv->allow_blinking) {
		pos += scnprintf(buf + pos, bufsz - pos,
				 "Led blinking rate: %u\n",
				 priv->last_blink_rate);
		pos += scnprintf(buf + pos, bufsz - pos,
				 "Last blink time: %lu\n",
				 priv->last_blink_time);
	}

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

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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)
{
	struct iwl_priv *priv = (struct iwl_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);
	ssize_t ret;

	pos += scnprintf(buf + pos, bufsz - pos,
			"Thermal Throttling Mode: %s\n",
716
			tt->advanced_tt ? "Advance" : "Legacy");
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	pos += scnprintf(buf + pos, bufsz - pos,
			"Thermal Throttling State: %d\n",
			tt->state);
720
	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);
	}
	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	return ret;
}

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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;
	if (!iwl_is_associated(priv))
		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)
{
	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
	char buf[100];
	int pos = 0;
	const size_t bufsz = sizeof(buf);
	ssize_t ret;

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

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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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	iwl_power_update_mode(priv, true);
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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)
{
	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
	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)
{
	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
	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);
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DEBUGFS_WRITE_FILE_OPS(log_event);
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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(interrupt);
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DEBUGFS_READ_FILE_OPS(qos);
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DEBUGFS_READ_FILE_OPS(led);
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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 ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
					 char __user *user_buf,
					 size_t count, loff_t *ppos)
{
	struct iwl_priv *priv = file->private_data;
	int pos = 0, ofs = 0;
	int cnt = 0, entry;
	struct iwl_tx_queue *txq;
	struct iwl_queue *q;
	struct iwl_rx_queue *rxq = &priv->rxq;
	char *buf;
	int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
887
		(priv->cfg->num_of_queues * 32 * 8) + 400;
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	const u8 *ptr;
	ssize_t ret;

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	if (!priv->txq) {
		IWL_ERR(priv, "txq not ready\n");
		return -EAGAIN;
	}
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	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf) {
		IWL_ERR(priv, "Can not allocate buffer\n");
		return -ENOMEM;
	}
	pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
	for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
		txq = &priv->txq[cnt];
		q = &txq->q;
		pos += scnprintf(buf + pos, bufsz - pos,
				"q[%d]: read_ptr: %u, write_ptr: %u\n",
				cnt, q->read_ptr, q->write_ptr);
	}
	if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
		ptr = priv->tx_traffic;
		pos += scnprintf(buf + pos, bufsz - pos,
				"Tx Traffic idx: %u\n",	priv->tx_traffic_idx);
		for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
			for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
			     entry++,  ofs += 16) {
				pos += scnprintf(buf + pos, bufsz - pos,
						"0x%.4x ", ofs);
				hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
						   buf + pos, bufsz - pos, 0);
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				pos += strlen(buf + pos);
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				if (bufsz - pos > 0)
					buf[pos++] = '\n';
			}
		}
	}

	pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
	pos += scnprintf(buf + pos, bufsz - pos,
			"read: %u, write: %u\n",
			 rxq->read, rxq->write);

	if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
		ptr = priv->rx_traffic;
		pos += scnprintf(buf + pos, bufsz - pos,
				"Rx Traffic idx: %u\n",	priv->rx_traffic_idx);
		for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
			for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
			     entry++,  ofs += 16) {
				pos += scnprintf(buf + pos, bufsz - pos,
						"0x%.4x ", ofs);
				hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
						   buf + pos, bufsz - pos, 0);
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				pos += strlen(buf + pos);
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				if (bufsz - pos > 0)
					buf[pos++] = '\n';
			}
		}
	}

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

static ssize_t iwl_dbgfs_traffic_log_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 traffic_log;

	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", &traffic_log) != 1)
		return -EFAULT;
	if (traffic_log == 0)
		iwl_reset_traffic_log(priv);

	return count;
}

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

	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
	struct iwl_tx_queue *txq;
	struct iwl_queue *q;
	char *buf;
	int pos = 0;
	int cnt;
	int ret;
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	const size_t bufsz = sizeof(char) * 64 * priv->cfg->num_of_queues;
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988 989 990 991
	if (!priv->txq) {
		IWL_ERR(priv, "txq not ready\n");
		return -EAGAIN;
	}
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	buf = kzalloc(bufsz, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
		txq = &priv->txq[cnt];
		q = &txq->q;
		pos += scnprintf(buf + pos, bufsz - pos,
				"hwq %.2d: read=%u write=%u stop=%d"
				" swq_id=%#.2x (ac %d/hwq %d)\n",
				cnt, q->read_ptr, q->write_ptr,
				!!test_bit(cnt, priv->queue_stopped),
				txq->swq_id,
				txq->swq_id & 0x80 ? txq->swq_id & 3 :
				txq->swq_id,
				txq->swq_id & 0x80 ? (txq->swq_id >> 2) &
				0x1f : txq->swq_id);
		if (cnt >= 4)
			continue;
		/* for the ACs, display the stop count too */
		pos += scnprintf(buf + pos, bufsz - pos,
				"        stop-count: %d\n",
				atomic_read(&priv->queue_stop_count[cnt]));
	}
	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	kfree(buf);
	return ret;
}

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

	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
	struct iwl_rx_queue *rxq = &priv->rxq;
	char buf[256];
	int pos = 0;
	const size_t bufsz = sizeof(buf);

	pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
						rxq->read);
	pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
						rxq->write);
	pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
						rxq->free_count);
	pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
			 le16_to_cpu(rxq->rb_stts->closed_rb_num) &  0x0FFF);
	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077
static int iwl_dbgfs_statistics_flag(struct iwl_priv *priv, char *buf,
				     int bufsz)
{
	int p = 0;

	p += scnprintf(buf + p, bufsz - p,
		"Statistics Flag(0x%X):\n",
		le32_to_cpu(priv->statistics.flag));
	if (le32_to_cpu(priv->statistics.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",
		(le32_to_cpu(priv->statistics.flag) &
		UCODE_STATISTICS_FREQUENCY_MSK)
		 ? "2.4 GHz" : "5.2 GHz");
	p += scnprintf(buf + p, bufsz - p,
		"\tTGj Narrow Band: %s\n",
		(le32_to_cpu(priv->statistics.flag) &
		UCODE_STATISTICS_NARROW_BAND_MSK)
		 ? "enabled" : "disabled");
	return p;
}


static ssize_t iwl_dbgfs_ucode_rx_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_rx_phy) * 20 +
		sizeof(struct statistics_rx_non_phy) * 20 +
		sizeof(struct statistics_rx_ht_phy) * 20 + 400;
	ssize_t ret;
1078 1079 1080 1081
	struct statistics_rx_phy *ofdm, *accum_ofdm;
	struct statistics_rx_phy *cck, *accum_cck;
	struct statistics_rx_non_phy *general, *accum_general;
	struct statistics_rx_ht_phy *ht, *accum_ht;
1082 1083 1084 1085 1086 1087

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

	/* make request to uCode to retrieve statistics information */
	mutex_lock(&priv->mutex);
1088
	ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109
	mutex_unlock(&priv->mutex);

	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
	 */
	ofdm = &priv->statistics.rx.ofdm;
	cck = &priv->statistics.rx.cck;
	general = &priv->statistics.rx.general;
	ht = &priv->statistics.rx.ofdm_ht;
1110 1111 1112 1113
	accum_ofdm = &priv->accum_statistics.rx.ofdm;
	accum_cck = &priv->accum_statistics.rx.cck;
	accum_general = &priv->accum_statistics.rx.general;
	accum_ht = &priv->accum_statistics.rx.ofdm_ht;
1114 1115
	pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - OFDM:\n");
1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184
	pos += scnprintf(buf + pos, bufsz - pos,
			"\t\t\tcurrent\t\t\taccumulative\n");
	pos += scnprintf(buf + pos, bufsz - pos, "ina_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->ina_cnt), accum_ofdm->ina_cnt);
	pos += scnprintf(buf + pos, bufsz - pos, "fina_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt);
	pos += scnprintf(buf + pos, bufsz - pos, "plcp_err:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err);
	pos += scnprintf(buf + pos, bufsz - pos, "crc32_err:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "overrun_err:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->overrun_err),
			 accum_ofdm->overrun_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "early_overrun_err:\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->early_overrun_err),
			 accum_ofdm->early_overrun_err);
	pos += scnprintf(buf + pos, bufsz - pos, "crc32_good:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->crc32_good),
			 accum_ofdm->crc32_good);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "false_alarm_cnt:\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->false_alarm_cnt),
			 accum_ofdm->false_alarm_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "fina_sync_err_cnt:\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->fina_sync_err_cnt),
			 accum_ofdm->fina_sync_err_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "sfd_timeout:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->sfd_timeout),
			 accum_ofdm->sfd_timeout);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "fina_timeout:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->fina_timeout),
			 accum_ofdm->fina_timeout);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "unresponded_rts:\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->unresponded_rts),
			 accum_ofdm->unresponded_rts);
	pos += scnprintf(buf + pos, bufsz - pos,
			"rxe_frame_lmt_ovrun:\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->rxe_frame_limit_overrun),
			 accum_ofdm->rxe_frame_limit_overrun);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "sent_ack_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->sent_ack_cnt),
			 accum_ofdm->sent_ack_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "sent_cts_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->sent_cts_cnt),
			 accum_ofdm->sent_cts_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "sent_ba_rsp_cnt:\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->sent_ba_rsp_cnt),
			 accum_ofdm->sent_ba_rsp_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "dsp_self_kill:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->dsp_self_kill),
			 accum_ofdm->dsp_self_kill);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "mh_format_err:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->mh_format_err),
			 accum_ofdm->mh_format_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "re_acq_main_rssi_sum:\t%u\t\t\t%u\n",
			 le32_to_cpu(ofdm->re_acq_main_rssi_sum),
			 accum_ofdm->re_acq_main_rssi_sum);
1185 1186

	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - CCK:\n");
1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254
	pos += scnprintf(buf + pos, bufsz - pos,
			"\t\t\tcurrent\t\t\taccumulative\n");
	pos += scnprintf(buf + pos, bufsz - pos, "ina_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt);
	pos += scnprintf(buf + pos, bufsz - pos, "fina_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt);
	pos += scnprintf(buf + pos, bufsz - pos, "plcp_err:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->plcp_err), accum_cck->plcp_err);
	pos += scnprintf(buf + pos, bufsz - pos, "crc32_err:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->crc32_err), accum_cck->crc32_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "overrun_err:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->overrun_err),
			 accum_cck->overrun_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "early_overrun_err:\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->early_overrun_err),
			 accum_cck->early_overrun_err);
	pos += scnprintf(buf + pos, bufsz - pos, "crc32_good:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->crc32_good), accum_cck->crc32_good);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "false_alarm_cnt:\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->false_alarm_cnt),
			 accum_cck->false_alarm_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "fina_sync_err_cnt:\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->fina_sync_err_cnt),
			 accum_cck->fina_sync_err_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "sfd_timeout:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->sfd_timeout),
			 accum_cck->sfd_timeout);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "fina_timeout:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->fina_timeout),
			 accum_cck->fina_timeout);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "unresponded_rts:\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->unresponded_rts),
			 accum_cck->unresponded_rts);
	pos += scnprintf(buf + pos, bufsz - pos,
			"rxe_frame_lmt_ovrun:\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->rxe_frame_limit_overrun),
			 accum_cck->rxe_frame_limit_overrun);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "sent_ack_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->sent_ack_cnt),
			 accum_cck->sent_ack_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "sent_cts_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->sent_cts_cnt),
			 accum_cck->sent_cts_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "sent_ba_rsp_cnt:\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->sent_ba_rsp_cnt),
			 accum_cck->sent_ba_rsp_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "dsp_self_kill:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->dsp_self_kill),
			 accum_cck->dsp_self_kill);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "mh_format_err:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->mh_format_err),
			 accum_cck->mh_format_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "re_acq_main_rssi_sum:\t%u\t\t\t%u\n",
			 le32_to_cpu(cck->re_acq_main_rssi_sum),
			 accum_cck->re_acq_main_rssi_sum);
1255 1256

	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - GENERAL:\n");
1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340
	pos += scnprintf(buf + pos, bufsz - pos,
			"\t\t\tcurrent\t\t\taccumulative\n");
	pos += scnprintf(buf + pos, bufsz - pos, "bogus_cts:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(general->bogus_cts),
			 accum_general->bogus_cts);
	pos += scnprintf(buf + pos, bufsz - pos, "bogus_ack:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(general->bogus_ack),
			 accum_general->bogus_ack);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "non_bssid_frames:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->non_bssid_frames),
			 accum_general->non_bssid_frames);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "filtered_frames:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->filtered_frames),
			 accum_general->filtered_frames);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "non_channel_beacons:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->non_channel_beacons),
			 accum_general->non_channel_beacons);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "channel_beacons:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->channel_beacons),
			 accum_general->channel_beacons);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "num_missed_bcon:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->num_missed_bcon),
			 accum_general->num_missed_bcon);
	pos += scnprintf(buf + pos, bufsz - pos,
			"adc_rx_saturation_time:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->adc_rx_saturation_time),
			 accum_general->adc_rx_saturation_time);
	pos += scnprintf(buf + pos, bufsz - pos,
			"ina_detect_search_tm:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->ina_detection_search_time),
			 accum_general->ina_detection_search_time);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "beacon_silence_rssi_a:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->beacon_silence_rssi_a),
			 accum_general->beacon_silence_rssi_a);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "beacon_silence_rssi_b:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->beacon_silence_rssi_b),
			 accum_general->beacon_silence_rssi_b);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "beacon_silence_rssi_c:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->beacon_silence_rssi_c),
			 accum_general->beacon_silence_rssi_c);
	pos += scnprintf(buf + pos, bufsz - pos,
			"interference_data_flag:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->interference_data_flag),
			 accum_general->interference_data_flag);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "channel_load:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(general->channel_load),
			 accum_general->channel_load);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "dsp_false_alarms:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->dsp_false_alarms),
			 accum_general->dsp_false_alarms);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "beacon_rssi_a:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(general->beacon_rssi_a),
			 accum_general->beacon_rssi_a);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "beacon_rssi_b:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(general->beacon_rssi_b),
			 accum_general->beacon_rssi_b);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "beacon_rssi_c:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(general->beacon_rssi_c),
			 accum_general->beacon_rssi_c);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "beacon_energy_a:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->beacon_energy_a),
			 accum_general->beacon_energy_a);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "beacon_energy_b:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->beacon_energy_b),
			 accum_general->beacon_energy_b);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "beacon_energy_c:\t%u\t\t\t%u\n",
			 le32_to_cpu(general->beacon_energy_c),
			 accum_general->beacon_energy_c);
1341 1342

	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - OFDM_HT:\n");
1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371
	pos += scnprintf(buf + pos, bufsz - pos,
			"\t\t\tcurrent\t\t\taccumulative\n");
	pos += scnprintf(buf + pos, bufsz - pos, "plcp_err:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ht->plcp_err), accum_ht->plcp_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "overrun_err:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ht->overrun_err), accum_ht->overrun_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "early_overrun_err:\t%u\t\t\t%u\n",
			 le32_to_cpu(ht->early_overrun_err),
			 accum_ht->early_overrun_err);
	pos += scnprintf(buf + pos, bufsz - pos, "crc32_good:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ht->crc32_good), accum_ht->crc32_good);
	pos += scnprintf(buf + pos, bufsz - pos, "crc32_err:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ht->crc32_err), accum_ht->crc32_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "mh_format_err:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ht->mh_format_err),
			 accum_ht->mh_format_err);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "agg_crc32_good:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ht->agg_crc32_good),
			 accum_ht->agg_crc32_good);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "agg_mpdu_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ht->agg_mpdu_cnt),
			 accum_ht->agg_mpdu_cnt);
	pos += scnprintf(buf + pos, bufsz - pos, "agg_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt);
1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386

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

static ssize_t iwl_dbgfs_ucode_tx_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_tx) * 24) + 250;
	ssize_t ret;
1387
	struct statistics_tx *tx, *accum_tx;
1388 1389 1390 1391 1392 1393

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

	/* make request to uCode to retrieve statistics information */
	mutex_lock(&priv->mutex);
1394
	ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412
	mutex_unlock(&priv->mutex);

	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
	 */
	tx = &priv->statistics.tx;
1413
	accum_tx = &priv->accum_statistics.tx;
1414 1415
	pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Tx:\n");
1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 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
	pos += scnprintf(buf + pos, bufsz - pos,
			"\t\t\tcurrent\t\t\taccumulative\n");
	pos += scnprintf(buf + pos, bufsz - pos, "preamble:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->preamble_cnt),
			 accum_tx->preamble_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "rx_detected_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->rx_detected_cnt),
			 accum_tx->rx_detected_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "bt_prio_defer_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->bt_prio_defer_cnt),
			 accum_tx->bt_prio_defer_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "bt_prio_kill_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->bt_prio_kill_cnt),
			 accum_tx->bt_prio_kill_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "few_bytes_cnt:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->few_bytes_cnt),
			 accum_tx->few_bytes_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "cts_timeout:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "ack_timeout:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->ack_timeout),
			 accum_tx->ack_timeout);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "expected_ack_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->expected_ack_cnt),
			 accum_tx->expected_ack_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "actual_ack_cnt:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->actual_ack_cnt),
			 accum_tx->actual_ack_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "dump_msdu_cnt:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->dump_msdu_cnt),
			 accum_tx->dump_msdu_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "abort_nxt_frame_mismatch:"
			 "\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
			 accum_tx->burst_abort_next_frame_mismatch_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "abort_missing_nxt_frame:"
			 "\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
			 accum_tx->burst_abort_missing_next_frame_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "cts_timeout_collision:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->cts_timeout_collision),
			 accum_tx->cts_timeout_collision);
	pos += scnprintf(buf + pos, bufsz - pos,
			"ack_ba_timeout_collision:\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->ack_or_ba_timeout_collision),
			 accum_tx->ack_or_ba_timeout_collision);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "agg ba_timeout:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->agg.ba_timeout),
			 accum_tx->agg.ba_timeout);
	pos += scnprintf(buf + pos, bufsz - pos,
			"agg ba_resched_frames:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->agg.ba_reschedule_frames),
			 accum_tx->agg.ba_reschedule_frames);
	pos += scnprintf(buf + pos, bufsz - pos,
			"agg scd_query_agg_frame:\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
			 accum_tx->agg.scd_query_agg_frame_cnt);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "agg scd_query_no_agg:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->agg.scd_query_no_agg),
			 accum_tx->agg.scd_query_no_agg);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "agg scd_query_agg:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->agg.scd_query_agg),
			 accum_tx->agg.scd_query_agg);
	pos += scnprintf(buf + pos, bufsz - pos,
			"agg scd_query_mismatch:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->agg.scd_query_mismatch),
			 accum_tx->agg.scd_query_mismatch);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "agg frame_not_ready:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->agg.frame_not_ready),
			 accum_tx->agg.frame_not_ready);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "agg underrun:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->agg.underrun),
			 accum_tx->agg.underrun);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "agg bt_prio_kill:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->agg.bt_prio_kill),
			 accum_tx->agg.bt_prio_kill);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "agg rx_ba_rsp_cnt:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
			 accum_tx->agg.rx_ba_rsp_cnt);
1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528

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

static ssize_t iwl_dbgfs_ucode_general_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_general) * 4 + 250;
	ssize_t ret;
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	struct statistics_general *general, *accum_general;
	struct statistics_dbg *dbg, *accum_dbg;
	struct statistics_div *div, *accum_div;
1532 1533 1534 1535 1536 1537

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

	/* make request to uCode to retrieve statistics information */
	mutex_lock(&priv->mutex);
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	ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558
	mutex_unlock(&priv->mutex);

	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
	 */
	general = &priv->statistics.general;
	dbg = &priv->statistics.general.dbg;
	div = &priv->statistics.general.div;
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	accum_general = &priv->accum_statistics.general;
	accum_dbg = &priv->accum_statistics.general.dbg;
	accum_div = &priv->accum_statistics.general.div;
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	pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_General:\n");
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	pos += scnprintf(buf + pos, bufsz - pos,
			"\t\t\tcurrent\t\t\taccumulative\n");
	pos += scnprintf(buf + pos, bufsz - pos, "temperature:\t\t\t%u\n",
1567
			 le32_to_cpu(general->temperature));
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	pos += scnprintf(buf + pos, bufsz - pos, "temperature_m:\t\t\t%u\n",
1569
			 le32_to_cpu(general->temperature_m));
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	pos += scnprintf(buf + pos, bufsz - pos,
			 "burst_check:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(dbg->burst_check),
			 accum_dbg->burst_check);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "burst_count:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(dbg->burst_count),
			 accum_dbg->burst_count);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "sleep_time:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(general->sleep_time),
			 accum_general->sleep_time);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "slots_out:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(general->slots_out),
			 accum_general->slots_out);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "slots_idle:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(general->slots_idle),
			 accum_general->slots_idle);
	pos += scnprintf(buf + pos, bufsz - pos, "ttl_timestamp:\t\t\t%u\n",
1591
			 le32_to_cpu(general->ttl_timestamp));
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	pos += scnprintf(buf + pos, bufsz - pos, "tx_on_a:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(div->tx_on_a), accum_div->tx_on_a);
	pos += scnprintf(buf + pos, bufsz - pos, "tx_on_b:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(div->tx_on_b), accum_div->tx_on_b);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "exec_time:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(div->exec_time), accum_div->exec_time);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "probe_time:\t\t\t%u\t\t\t%u\n",
			 le32_to_cpu(div->probe_time), accum_div->probe_time);
	pos += scnprintf(buf + pos, bufsz - pos,
			 "rx_enable_counter:\t\t%u\t\t\t%u\n",
			 le32_to_cpu(general->rx_enable_counter),
			 accum_general->rx_enable_counter);
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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_sensitivity_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;
	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) {

	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
	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;
}

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

	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
	char buf[128];
	int pos = 0;
	ssize_t ret;
	const size_t bufsz = sizeof(buf);
	struct statistics_tx *tx;

	if (!iwl_is_alive(priv))
		pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
	else {
		/* make request to uCode to retrieve statistics information */
		mutex_lock(&priv->mutex);
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		ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
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		mutex_unlock(&priv->mutex);

		if (ret) {
			IWL_ERR(priv, "Error sending statistics request: %zd\n",
				ret);
			return -EAGAIN;
		}
		tx = &priv->statistics.tx;
		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,
						"\tantenna A: 0x%X\n",
						tx->tx_power.ant_a);
			if ((priv->cfg->valid_tx_ant & ANT_B) &&
			    tx->tx_power.ant_b)
				pos += scnprintf(buf + pos, bufsz - pos,
						"\tantenna B: 0x%X\n",
						tx->tx_power.ant_b);
			if ((priv->cfg->valid_tx_ant & ANT_C) &&
			    tx->tx_power.ant_c)
				pos += scnprintf(buf + pos, bufsz - pos,
						"\tantenna C: 0x%X\n",
						tx->tx_power.ant_c);
		} else
			pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
	}
	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

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

1824
static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847
					 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 */
	mutex_lock(&priv->mutex);
	iwl_send_statistics_request(priv, CMD_SYNC, true);
	mutex_unlock(&priv->mutex);

	return count;
}

1848 1849
DEBUGFS_READ_FILE_OPS(rx_statistics);
DEBUGFS_READ_FILE_OPS(tx_statistics);
1850
DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
1851 1852
DEBUGFS_READ_FILE_OPS(rx_queue);
DEBUGFS_READ_FILE_OPS(tx_queue);
1853 1854 1855
DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
DEBUGFS_READ_FILE_OPS(ucode_general_stats);
1856 1857
DEBUGFS_READ_FILE_OPS(sensitivity);
DEBUGFS_READ_FILE_OPS(chain_noise);
W
Wey-Yi Guy 已提交
1858
DEBUGFS_READ_FILE_OPS(tx_power);
1859
DEBUGFS_READ_FILE_OPS(power_save_status);
1860 1861
DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
1862

T
Tomas Winkler 已提交
1863 1864 1865 1866 1867 1868 1869
/*
 * Create the debugfs files and directories
 *
 */
int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
{
	struct iwl_debugfs *dbgfs;
1870
	struct dentry *phyd = priv->hw->wiphy->debugfsdir;
1871
	int ret = 0;
T
Tomas Winkler 已提交
1872 1873 1874

	dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL);
	if (!dbgfs) {
1875
		ret = -ENOMEM;
T
Tomas Winkler 已提交
1876 1877 1878 1879 1880
		goto err;
	}

	priv->dbgfs = dbgfs;
	dbgfs->name = name;
1881
	dbgfs->dir_drv = debugfs_create_dir(name, phyd);
1882 1883
	if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)) {
		ret = -ENOENT;
T
Tomas Winkler 已提交
1884 1885 1886 1887
		goto err;
	}

	DEBUGFS_ADD_DIR(data, dbgfs->dir_drv);
1888
	DEBUGFS_ADD_DIR(rf, dbgfs->dir_drv);
1889
	DEBUGFS_ADD_DIR(debug, dbgfs->dir_drv);
1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911
	DEBUGFS_ADD_FILE(nvm, data, S_IRUSR);
	DEBUGFS_ADD_FILE(sram, data, S_IWUSR | S_IRUSR);
	DEBUGFS_ADD_FILE(log_event, data, S_IWUSR);
	DEBUGFS_ADD_FILE(stations, data, S_IRUSR);
	DEBUGFS_ADD_FILE(channels, data, S_IRUSR);
	DEBUGFS_ADD_FILE(status, data, S_IRUSR);
	DEBUGFS_ADD_FILE(interrupt, data, S_IWUSR | S_IRUSR);
	DEBUGFS_ADD_FILE(qos, data, S_IRUSR);
	DEBUGFS_ADD_FILE(led, data, S_IRUSR);
	DEBUGFS_ADD_FILE(sleep_level_override, data, S_IWUSR | S_IRUSR);
	DEBUGFS_ADD_FILE(current_sleep_command, data, S_IRUSR);
	DEBUGFS_ADD_FILE(thermal_throttling, data, S_IRUSR);
	DEBUGFS_ADD_FILE(disable_ht40, data, S_IWUSR | S_IRUSR);
	DEBUGFS_ADD_FILE(rx_statistics, debug, S_IRUSR);
	DEBUGFS_ADD_FILE(tx_statistics, debug, S_IRUSR);
	DEBUGFS_ADD_FILE(traffic_log, debug, S_IWUSR | S_IRUSR);
	DEBUGFS_ADD_FILE(rx_queue, debug, S_IRUSR);
	DEBUGFS_ADD_FILE(tx_queue, debug, S_IRUSR);
	DEBUGFS_ADD_FILE(tx_power, debug, S_IRUSR);
	DEBUGFS_ADD_FILE(power_save_status, debug, S_IRUSR);
	DEBUGFS_ADD_FILE(clear_ucode_statistics, debug, S_IWUSR);
	DEBUGFS_ADD_FILE(clear_traffic_statistics, debug, S_IWUSR);
1912
	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
1913 1914 1915 1916 1917
		DEBUGFS_ADD_FILE(ucode_rx_stats, debug, S_IRUSR);
		DEBUGFS_ADD_FILE(ucode_tx_stats, debug, S_IRUSR);
		DEBUGFS_ADD_FILE(ucode_general_stats, debug, S_IRUSR);
		DEBUGFS_ADD_FILE(sensitivity, debug, S_IRUSR);
		DEBUGFS_ADD_FILE(chain_noise, debug, S_IRUSR);
1918
	}
1919 1920 1921
	DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
	DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
			 &priv->disable_chain_noise_cal);
1922 1923 1924 1925
	if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
	    ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
		DEBUGFS_ADD_BOOL(disable_tx_power, rf,
				&priv->disable_tx_power_cal);
T
Tomas Winkler 已提交
1926 1927 1928
	return 0;

err:
1929
	IWL_ERR(priv, "Can't open the debugfs directory\n");
T
Tomas Winkler 已提交
1930
	iwl_dbgfs_unregister(priv);
1931
	return ret;
T
Tomas Winkler 已提交
1932 1933 1934 1935 1936 1937 1938 1939 1940
}
EXPORT_SYMBOL(iwl_dbgfs_register);

/**
 * Remove the debugfs files and directories
 *
 */
void iwl_dbgfs_unregister(struct iwl_priv *priv)
{
1941
	if (!priv->dbgfs)
T
Tomas Winkler 已提交
1942 1943
		return;

1944 1945
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sleep_level_override);
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_current_sleep_command);
1946
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm);
T
Tomas Winkler 已提交
1947
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
1948
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event);
T
Tomas Winkler 已提交
1949
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations);
1950
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_channels);
1951
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_status);
1952
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_interrupt);
W
Wey-Yi Guy 已提交
1953
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_qos);
W
Wey-Yi Guy 已提交
1954
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_led);
1955
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling);
1956
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_disable_ht40);
T
Tomas Winkler 已提交
1957
	DEBUGFS_REMOVE(priv->dbgfs->dir_data);
1958 1959
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_statistics);
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_statistics);
1960
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_traffic_log);
1961 1962
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_queue);
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_queue);
W
Wey-Yi Guy 已提交
1963
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_power);
1964
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_power_save_status);
1965 1966 1967 1968
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
			file_clear_ucode_statistics);
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
			file_clear_traffic_statistics);
1969 1970 1971 1972 1973 1974 1975
	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
			file_ucode_rx_stats);
		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
			file_ucode_tx_stats);
		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
			file_ucode_general_stats);
1976 1977 1978 1979
		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
			file_sensitivity);
		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
			file_chain_noise);
1980
	}
1981
	DEBUGFS_REMOVE(priv->dbgfs->dir_debug);
1982 1983
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
1984 1985 1986
	if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
	    ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_tx_power);
1987
	DEBUGFS_REMOVE(priv->dbgfs->dir_rf);
T
Tomas Winkler 已提交
1988 1989 1990 1991 1992 1993 1994
	DEBUGFS_REMOVE(priv->dbgfs->dir_drv);
	kfree(priv->dbgfs);
	priv->dbgfs = NULL;
}
EXPORT_SYMBOL(iwl_dbgfs_unregister);


1995