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mac80211: add debugfs file for current tx rate 

Add a debugfs file showing the current tx rate.
The information available in the rc_stats file
doesn't evidently provides us the current tx rate.
This patch adds the support for the same.

Signed-off-by: Saravana <saravanad@posedge.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Saravana 2012-11-29 19:22:37 +05:30 committed by Johannes Berg
parent db94357dbd
commit 91b8c050b2
1 changed files with 16 additions and 0 deletions
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16
net/mac80211/debugfs_sta.c
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@ -322,6 +322,21 @@ static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
}
STA_OPS(ht_capa);
static ssize_t sta_current_tx_rate_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct sta_info *sta = file->private_data;
struct rate_info rinfo;
u16 rate;
sta_set_rate_info_tx(sta, &sta->last_tx_rate, &rinfo);
rate = cfg80211_calculate_bitrate(&rinfo);
return mac80211_format_buffer(userbuf, count, ppos,
"%d.%d MBit/s\n",
rate/10, rate%10);
}
STA_OPS(current_tx_rate);
#define DEBUGFS_ADD(name) \
debugfs_create_file(#name, 0400, \
sta->debugfs.dir, sta, &sta_ ##name## _ops);
@ -371,6 +386,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
DEBUGFS_ADD(last_signal);
DEBUGFS_ADD(ht_capa);
DEBUGFS_ADD(last_ack_signal);
DEBUGFS_ADD(current_tx_rate);
DEBUGFS_ADD_COUNTER(rx_packets, rx_packets);
DEBUGFS_ADD_COUNTER(tx_packets, tx_packets);