diff options
| author | Abbas, Mohamed <mohamed.abbas@intel.com> | 2008-12-02 12:14:02 -0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-12-05 09:35:55 -0500 |
| commit | c30e30e17dad86d5e161cf9774eb4d549cc13191 (patch) | |
| tree | 49ad5b7ac5649dfbbf01cc3af39f92638ca02eab | |
| parent | d366df5abb8d5ce7e2c36d3b678177787ccd9749 (diff) | |
iwl3945: add debugfs support
Add debugfs support to 3945 driver to display rs info.
Signed-off-by: Mohamed Abbas <mohamed.abbas@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-3945-rs.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c index bfeef701b1f..76100d5786f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c @@ -63,6 +63,9 @@ struct iwl3945_rs_sta { u8 ibss_sta_added; struct timer_list rate_scale_flush; struct iwl3945_rate_scale_data win[IWL_RATE_COUNT]; +#ifdef CONFIG_MAC80211_DEBUGFS + struct dentry *rs_sta_dbgfs_stats_table_file; +#endif /* used to be in sta_info */ int last_txrate_idx; @@ -772,6 +775,60 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, IWL_DEBUG_RATE("leave: %d\n", index); } +#ifdef CONFIG_MAC80211_DEBUGFS +static int iwl3945_open_file_generic(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + return 0; +} + +static ssize_t iwl3945_sta_dbgfs_stats_table_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + char buff[1024]; + int desc = 0; + int j; + struct iwl3945_rs_sta *lq_sta = file->private_data; + + desc += sprintf(buff + desc, "tx packets=%d last rate index=%d\n" + "rate=0x%X flush time %d\n", + lq_sta->tx_packets, + lq_sta->last_txrate_idx, + lq_sta->start_rate, jiffies_to_msecs(lq_sta->flush_time)); + for (j = 0; j < IWL_RATE_COUNT; j++) { + desc += sprintf(buff+desc, + "counter=%d success=%d %%=%d\n", + lq_sta->win[j].counter, + lq_sta->win[j].success_counter, + lq_sta->win[j].success_ratio); + } + return simple_read_from_buffer(user_buf, count, ppos, buff, desc); +} + +static const struct file_operations rs_sta_dbgfs_stats_table_ops = { + .read = iwl3945_sta_dbgfs_stats_table_read, + .open = iwl3945_open_file_generic, +}; + +static void iwl3945_add_debugfs(void *priv, void *priv_sta, + struct dentry *dir) +{ + struct iwl3945_rs_sta *lq_sta = 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); + +} + +static void iwl3945_remove_debugfs(void *priv, void *priv_sta) +{ + struct iwl3945_rs_sta *lq_sta = priv_sta; + debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file); +} +#endif + static struct rate_control_ops rs_ops = { .module = NULL, .name = RS_NAME, @@ -782,6 +839,11 @@ static struct rate_control_ops rs_ops = { .free = rs_free, .alloc_sta = rs_alloc_sta, .free_sta = rs_free_sta, +#ifdef CONFIG_MAC80211_DEBUGFS + .add_sta_debugfs = iwl3945_add_debugfs, + .remove_sta_debugfs = iwl3945_remove_debugfs, +#endif + }; void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id) |