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linux-kernel-test/drivers/net/wireless/iwlwifi/iwl-debugfs.c
Johannes Berg 6ab10ff873 iwlwifi: handle unicast PS buffering 
Using the new mac80211 functionality, this makes
iwlwifi handle unicast PS buffering correctly.
The device works like this:

 * when a station goes to sleep, the microcode notices
   this and marks the station as asleep
 * when the station is marked asleep, the microcode
   refuses to transmit to the station and rejects all
   frames queued to it with the failure status code
   TX_STATUS_FAIL_DEST_PS (a previous patch handled
   this correctly)
 * when we need to send frames to the station _although_
   it is asleep, we need to tell the ucode how many,
   and this is asynchronous with sending so we cannot
   just send the frames, we need to wait for all other
   frames to be flushed, and then update the counter
   before sending out the poll response frames. This
   is handled partially in the driver and partially in
   mac80211.

In order to do all this correctly, we need to
 * keep track of how many frames are pending for each
   associated client station (avoid doing it for other
   stations to avoid the atomic ops)
 * tell mac80211 that we driver-block the PS status
   while there are still frames pending on the queues,
   and once they are all rejected (due to the dest sta
   being in PS) unblock mac80211

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18 17:09:08 -05:00

1993 lines
65 KiB
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/******************************************************************************
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2009 Intel Corporation. All rights reserved.
*
* 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:
* Intel Linux Wireless <ilw@linux.intel.com>
* 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>
#include "iwl-dev.h"
#include "iwl-debug.h"
#include "iwl-core.h"
#include "iwl-io.h"
#include "iwl-calib.h"
/* 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)
#define DEBUGFS_ADD_FILE(name, parent) do { \
dbgfs->dbgfs_##parent##_files.file_##name = \
debugfs_create_file(#name, S_IWUSR | S_IRUSR, \
dbgfs->dir_##parent, priv, \
&iwl_dbgfs_##name##_ops); \
if (!(dbgfs->dbgfs_##parent##_files.file_##name)) \
goto err; \
} while (0)
#define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
dbgfs->dbgfs_##parent##_files.file_##name = \
debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \
dbgfs->dir_##parent, ptr); \
if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name) \
|| !dbgfs->dbgfs_##parent##_files.file_##name) \
goto err; \
} while (0)
#define DEBUGFS_ADD_X32(name, parent, ptr) do { \
dbgfs->dbgfs_##parent##_files.file_##name = \
debugfs_create_x32(#name, S_IRUSR, dbgfs->dir_##parent, ptr); \
if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name) \
|| !dbgfs->dbgfs_##parent##_files.file_##name) \
goto err; \
} while (0)
#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, \
};
#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, \
};
#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;
char *buf;
int pos = 0;
int cnt;
ssize_t ret;
const size_t bufsz = 100 +
sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
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,
"\t%25s\t\t: %u\n",
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,
"\t%25s\t\t: %u\n",
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;
}
static ssize_t iwl_dbgfs_tx_statistics_write(struct file *file,
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;
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;
if (clear_flag == 1)
iwl_clear_tx_stats(priv);
return count;
}
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;
char *buf;
int pos = 0;
int cnt;
ssize_t ret;
const size_t bufsz = 100 +
sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
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,
"\t%25s\t\t: %u\n",
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,
"\t%25s\t\t: %u\n",
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);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
static ssize_t iwl_dbgfs_rx_statistics_write(struct file *file,
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;
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;
if (clear_flag == 1)
iwl_clear_rx_stats(priv);
return count;
}
#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;
char buf[1024];
ssize_t ret;
int i;
int pos = 0;
struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
const size_t bufsz = sizeof(buf);
for (i = priv->dbgfs->sram_len; i > 0; i -= 4) {
val = iwl_read_targ_mem(priv, priv->dbgfs->sram_offset + \
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;
}
}
pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
}
pos += scnprintf(buf + pos, bufsz - pos, "\n");
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
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;
struct iwl_station_entry *station;
int max_sta = priv->hw_params.max_stations;
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);
if (!buf)
return -ENOMEM;
pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
priv->num_stations);
for (i = 0; i < max_sta; i++) {
station = &priv->stations[i];
if (station->used) {
pos += scnprintf(buf + pos, bufsz - pos,
"station %d:\ngeneral data:\n", i+1);
pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n",
station->sta.sta.sta_id);
pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n",
station->sta.mode);
pos += scnprintf(buf + pos, bufsz - pos,
"flags: 0x%x\n",
station->sta.station_flags_msk);
pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n");
pos += scnprintf(buf + pos, bufsz - pos,
"seq_num\t\ttxq_id");
pos += scnprintf(buf + pos, bufsz - pos,
"\tframe_count\twait_for_ba\t");
pos += scnprintf(buf + pos, bufsz - pos,
"start_idx\tbitmap0\t");
pos += scnprintf(buf + pos, bufsz - pos,
"bitmap1\trate_n_flags");
pos += scnprintf(buf + pos, bufsz - pos, "\n");
for (j = 0; j < MAX_TID_COUNT; j++) {
pos += scnprintf(buf + pos, bufsz - pos,
"[%d]:\t\t%u", j,
station->tid[j].seq_number);
pos += scnprintf(buf + pos, bufsz - pos,
"\t%u\t\t%u\t\t%u\t\t",
station->tid[j].agg.txq_id,
station->tid[j].agg.frame_count,
station->tid[j].agg.wait_for_ba);
pos += scnprintf(buf + pos, bufsz - pos,
"%u\t%llu\t%u",
station->tid[j].agg.start_idx,
(unsigned long long)station->tid[j].agg.bitmap,
station->tid[j].agg.rate_n_flags);
pos += scnprintf(buf + pos, bufsz - pos, "\n");
}
pos += scnprintf(buf + pos, bufsz - pos, "\n");
}
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
static ssize_t iwl_dbgfs_nvm_read(struct file *file,
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;
u16 eeprom_ver;
size_t eeprom_len = priv->cfg->eeprom_size;
buf_size = 4 * eeprom_len + 256;
if (eeprom_len % 16) {
IWL_ERR(priv, "NVM size is not multiple of 16.\n");
return -ENODATA;
}
ptr = priv->eeprom;
if (!ptr) {
IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
return -ENOMEM;
}
/* 4 characters for byte 0xYY */
buf = kzalloc(buf_size, GFP_KERNEL);
if (!buf) {
IWL_ERR(priv, "Can not allocate Buffer\n");
return -ENOMEM;
}
eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
"version: 0x%x\n",
(priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
? "OTP" : "EEPROM", eeprom_ver);
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);
pos += strlen(buf + pos);
if (buf_size - 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_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)
priv->cfg->ops->lib->dump_nic_event_log(priv);
return count;
}
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) {
IWL_ERR(priv, "Can not allocate Buffer\n");
return -ENOMEM;
}
supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
if (supp_band) {
channels = supp_band->channels;
pos += scnprintf(buf + pos, bufsz - pos,
"Displaying %d channels in 2.4GHz band 802.11bg):\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");
}
supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
if (supp_band) {
channels = supp_band->channels;
pos += scnprintf(buf + pos, bufsz - pos,
"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");
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
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));
pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
test_bit(STATUS_CT_KILL, &priv->status));
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);
}
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;
}
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;
}
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;
}
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;
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
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",
tt->advanced_tt ? "Advance" : "Legacy");
pos += scnprintf(buf + pos, bufsz - pos,
"Thermal Throttling State: %d\n",
tt->state);
if (tt->advanced_tt) {
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;
}
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;
}
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".
*/
if (value == 0)
return -EINVAL;
else if (value > 0)
value -= 1;
if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
return -EINVAL;
if (!iwl_is_ready_rf(priv))
return -EAGAIN;
priv->power_data.debug_sleep_level_override = value;
iwl_power_update_mode(priv, true);
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);
}
DEBUGFS_READ_WRITE_FILE_OPS(sram);
DEBUGFS_WRITE_FILE_OPS(log_event);
DEBUGFS_READ_FILE_OPS(nvm);
DEBUGFS_READ_FILE_OPS(stations);
DEBUGFS_READ_FILE_OPS(channels);
DEBUGFS_READ_FILE_OPS(status);
DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
DEBUGFS_READ_FILE_OPS(qos);
DEBUGFS_READ_FILE_OPS(led);
DEBUGFS_READ_FILE_OPS(thermal_throttling);
DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
DEBUGFS_READ_FILE_OPS(current_sleep_command);
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) +
(priv->cfg->num_of_queues * 32 * 8) + 400;
const u8 *ptr;
ssize_t ret;
if (!priv->txq) {
IWL_ERR(priv, "txq not ready\n");
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, "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);
pos += strlen(buf + pos);
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);
pos += strlen(buf + pos);
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;
}
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;
const size_t bufsz = sizeof(char) * 60 * priv->cfg->num_of_queues;
if (!priv->txq) {
IWL_ERR(priv, "txq not ready\n");
return -EAGAIN;
}
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);
}
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;
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;
if (!iwl_is_alive(priv))
return -EAGAIN;
/* make request to uCode to retrieve statistics information */
mutex_lock(&priv->mutex);
ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
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;
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;
pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - OFDM:\n");
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);
pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - CCK:\n");
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);
pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - GENERAL:\n");
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);
pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - OFDM_HT:\n");
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);
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;
struct statistics_tx *tx, *accum_tx;
if (!iwl_is_alive(priv))
return -EAGAIN;
/* make request to uCode to retrieve statistics information */
mutex_lock(&priv->mutex);
ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
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;
accum_tx = &priv->accum_statistics.tx;
pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Tx:\n");
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);
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;
struct statistics_general *general, *accum_general;
struct statistics_dbg *dbg, *accum_dbg;
struct statistics_div *div, *accum_div;
if (!iwl_is_alive(priv))
return -EAGAIN;
/* make request to uCode to retrieve statistics information */
mutex_lock(&priv->mutex);
ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
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;
accum_general = &priv->accum_statistics.general;
accum_dbg = &priv->accum_statistics.general.dbg;
accum_div = &priv->accum_statistics.general.div;
pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
pos += scnprintf(buf + pos, bufsz - pos, "Statistics_General:\n");
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",
le32_to_cpu(general->temperature));
pos += scnprintf(buf + pos, bufsz - pos, "temperature_m:\t\t\t%u\n",
le32_to_cpu(general->temperature_m));
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",
le32_to_cpu(general->ttl_timestamp));
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);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
}
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;
}
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);
ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
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);
}
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);
}
static ssize_t iwl_dbgfs_clear_statistics_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 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;
}
DEBUGFS_READ_WRITE_FILE_OPS(rx_statistics);
DEBUGFS_READ_WRITE_FILE_OPS(tx_statistics);
DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
DEBUGFS_READ_FILE_OPS(rx_queue);
DEBUGFS_READ_FILE_OPS(tx_queue);
DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
DEBUGFS_READ_FILE_OPS(ucode_general_stats);
DEBUGFS_READ_FILE_OPS(sensitivity);
DEBUGFS_READ_FILE_OPS(chain_noise);
DEBUGFS_READ_FILE_OPS(tx_power);
DEBUGFS_READ_FILE_OPS(power_save_status);
DEBUGFS_WRITE_FILE_OPS(clear_statistics);
/*
* Create the debugfs files and directories
*
*/
int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
{
struct iwl_debugfs *dbgfs;
struct dentry *phyd = priv->hw->wiphy->debugfsdir;
int ret = 0;
dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL);
if (!dbgfs) {
ret = -ENOMEM;
goto err;
}
priv->dbgfs = dbgfs;
dbgfs->name = name;
dbgfs->dir_drv = debugfs_create_dir(name, phyd);
if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)) {
ret = -ENOENT;
goto err;
}
DEBUGFS_ADD_DIR(data, dbgfs->dir_drv);
DEBUGFS_ADD_DIR(rf, dbgfs->dir_drv);
DEBUGFS_ADD_DIR(debug, dbgfs->dir_drv);
DEBUGFS_ADD_FILE(nvm, data);
DEBUGFS_ADD_FILE(sram, data);
DEBUGFS_ADD_FILE(log_event, data);
DEBUGFS_ADD_FILE(stations, data);
DEBUGFS_ADD_FILE(channels, data);
DEBUGFS_ADD_FILE(status, data);
DEBUGFS_ADD_FILE(interrupt, data);
DEBUGFS_ADD_FILE(qos, data);
DEBUGFS_ADD_FILE(led, data);
DEBUGFS_ADD_FILE(sleep_level_override, data);
DEBUGFS_ADD_FILE(current_sleep_command, data);
DEBUGFS_ADD_FILE(thermal_throttling, data);
DEBUGFS_ADD_FILE(disable_ht40, data);
DEBUGFS_ADD_FILE(rx_statistics, debug);
DEBUGFS_ADD_FILE(tx_statistics, debug);
DEBUGFS_ADD_FILE(traffic_log, debug);
DEBUGFS_ADD_FILE(rx_queue, debug);
DEBUGFS_ADD_FILE(tx_queue, debug);
DEBUGFS_ADD_FILE(tx_power, debug);
DEBUGFS_ADD_FILE(power_save_status, debug);
DEBUGFS_ADD_FILE(clear_statistics, debug);
if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
DEBUGFS_ADD_FILE(ucode_rx_stats, debug);
DEBUGFS_ADD_FILE(ucode_tx_stats, debug);
DEBUGFS_ADD_FILE(ucode_general_stats, debug);
DEBUGFS_ADD_FILE(sensitivity, debug);
DEBUGFS_ADD_FILE(chain_noise, debug);
}
DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
&priv->disable_chain_noise_cal);
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);
return 0;
err:
IWL_ERR(priv, "Can't open the debugfs directory\n");
iwl_dbgfs_unregister(priv);
return ret;
}
EXPORT_SYMBOL(iwl_dbgfs_register);
/**
* Remove the debugfs files and directories
*
*/
void iwl_dbgfs_unregister(struct iwl_priv *priv)
{
if (!priv->dbgfs)
return;
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sleep_level_override);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_current_sleep_command);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_channels);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_status);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_interrupt);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_qos);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_led);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_disable_ht40);
DEBUGFS_REMOVE(priv->dbgfs->dir_data);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_statistics);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_statistics);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_traffic_log);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_queue);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_queue);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_power);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_power_save_status);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_clear_statistics);
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);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
file_sensitivity);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
file_chain_noise);
}
DEBUGFS_REMOVE(priv->dbgfs->dir_debug);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
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);
DEBUGFS_REMOVE(priv->dbgfs->dir_rf);
DEBUGFS_REMOVE(priv->dbgfs->dir_drv);
kfree(priv->dbgfs);
priv->dbgfs = NULL;
}
EXPORT_SYMBOL(iwl_dbgfs_unregister);
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