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iwlwifi: Display sensitivity and chain noise information

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Display sensitivity and chain noise data to help understand the current
environment and RF condition.

The data is feeded by statistics notification and Beacon from uCode;
then used by sensitivity calibration and chain noise calibration to
determine how DSP should react to the environment changes

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Wey-Yi Guy 2009-08-07 15:41:43 -07:00 committed by John W. Linville
parent e8fe59aecb
commit 5225935b53
2 changed files with 150 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/net/wireless/iwlwifi/iwl-debug.h
View file

@ -103,6 +103,8 @@ struct iwl_debugfs {
struct dentry *file_ucode_rx_stats;
struct dentry *file_ucode_tx_stats;
struct dentry *file_ucode_general_stats;
struct dentry *file_sensitivity;
struct dentry *file_chain_noise;
} dbgfs_debug_files;
u32 sram_offset;
u32 sram_len;

149
drivers/net/wireless/iwlwifi/iwl-debugfs.c
View file

@ -38,7 +38,7 @@
#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 { \
@ -1346,6 +1346,145 @@ static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
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;
}
DEBUGFS_READ_WRITE_FILE_OPS(rx_statistics);
DEBUGFS_READ_WRITE_FILE_OPS(tx_statistics);
DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
@ -1354,6 +1493,8 @@ 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);
/*
* Create the debugfs files and directories
@ -1404,6 +1545,8 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
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,
@ -1456,6 +1599,10 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
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);