system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-09-23 12:56:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

iwl3945: add debugfs support

Browse source 
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>
This commit is contained in:
Abbas, Mohamed 2008-12-02 12:14:02 -08:00 committed by John W. Linville
parent d366df5abb
commit c30e30e17d
1 changed files with 62 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

62
drivers/net/wireless/iwlwifi/iwl-3945-rs.c
View file

@ -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)