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| author | Wey-Yi Guy <wey-yi.w.guy@intel.com> | 2009-05-08 22:44:43 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-05-11 21:24:03 +0200 |
| commit | 38167459da50e3fe9a10635308bfb0048cc36e8e (patch) | |
| tree | 9c6826e7df070b7bba6a4b3fa89370b2827ad2c0 /drivers/net/wireless | |
| parent | iwlwifi: use #define instead of hard coded value (diff) | |
| download | linux-38167459da50e3fe9a10635308bfb0048cc36e8e.tar.xz linux-38167459da50e3fe9a10635308bfb0048cc36e8e.zip | |
iwlagn: show current rate scale data in debugfs
Add "rate_scale_data" debugfs file to show current bit rate (HT and Legacy),
plus additional information (rssi, noise, tsf, beacon time stamp).
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>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c index 3fa06afce86a..4c88e8715df2 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -161,6 +161,7 @@ struct iwl_lq_sta { #ifdef CONFIG_MAC80211_DEBUGFS struct dentry *rs_sta_dbgfs_scale_table_file; struct dentry *rs_sta_dbgfs_stats_table_file; + struct dentry *rs_sta_dbgfs_rate_scale_data_file; struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file; u32 dbg_fixed_rate; #endif @@ -2984,6 +2985,43 @@ static const struct file_operations rs_sta_dbgfs_stats_table_ops = { .open = open_file_generic, }; +static ssize_t rs_sta_dbgfs_rate_scale_data_read(struct file *file, + char __user *user_buf, size_t count, loff_t *ppos) +{ + char buff[120]; + int desc = 0; + ssize_t ret; + + struct iwl_lq_sta *lq_sta = file->private_data; + struct iwl_priv *priv; + struct iwl_scale_tbl_info *tbl = &lq_sta->lq_info[lq_sta->active_tbl]; + + priv = lq_sta->drv; + + if (is_Ht(tbl->lq_type)) + desc += sprintf(buff+desc, + "Bit Rate= %d Mb/s\n", + tbl->expected_tpt[lq_sta->last_txrate_idx]); + else + desc += sprintf(buff+desc, + "Bit Rate= %d Mb/s\n", + iwl_rates[lq_sta->last_txrate_idx].ieee >> 1); + desc += sprintf(buff+desc, + "Signal Level= %d dBm\tNoise Level= %d dBm\n", + priv->last_rx_rssi, priv->last_rx_noise); + desc += sprintf(buff+desc, + "Tsf= 0x%llx\tBeacon time= 0x%08X\n", + priv->last_tsf, priv->last_beacon_time); + + ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); + return ret; +} + +static const struct file_operations rs_sta_dbgfs_rate_scale_data_ops = { + .read = rs_sta_dbgfs_rate_scale_data_read, + .open = open_file_generic, +}; + static void rs_add_debugfs(void *priv, void *priv_sta, struct dentry *dir) { @@ -2994,6 +3032,9 @@ static void rs_add_debugfs(void *priv, void *priv_sta, lq_sta->rs_sta_dbgfs_stats_table_file = debugfs_create_file("rate_stats_table", 0600, dir, lq_sta, &rs_sta_dbgfs_stats_table_ops); + lq_sta->rs_sta_dbgfs_rate_scale_data_file = + debugfs_create_file("rate_scale_data", 0600, dir, + lq_sta, &rs_sta_dbgfs_rate_scale_data_ops); lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file = debugfs_create_u8("tx_agg_tid_enable", 0600, dir, &lq_sta->tx_agg_tid_en); @@ -3005,6 +3046,7 @@ static void rs_remove_debugfs(void *priv, void *priv_sta) struct iwl_lq_sta *lq_sta = priv_sta; debugfs_remove(lq_sta->rs_sta_dbgfs_scale_table_file); debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file); + debugfs_remove(lq_sta->rs_sta_dbgfs_rate_scale_data_file); debugfs_remove(lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file); } #endif |