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ath9k: add debugfs support for dynack

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Add ack_to entry to debugfs in order to dump current ACK timeout value

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Lorenzo Bianconi 2014-09-16 02:13:14 +02:00 committed by John W. Linville
parent 35c273eafe
commit 7a90744c33
1 changed files with 28 additions and 0 deletions
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28
drivers/net/wireless/ath/ath9k/debug.c
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@ -1169,6 +1169,29 @@ static const struct file_operations fops_btcoex = {
};
#endif
#ifdef CONFIG_ATH9K_DYNACK
static ssize_t read_file_ackto(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath_softc *sc = file->private_data;
struct ath_hw *ah = sc->sc_ah;
char buf[32];
unsigned int len;
len = sprintf(buf, "%u %c\n", ah->dynack.ackto,
(ah->dynack.enabled) ? 'A' : 'S');
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations fops_ackto = {
.read = read_file_ackto,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
#endif
/* Ethtool support for get-stats */
#define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
@ -1374,5 +1397,10 @@ int ath9k_init_debug(struct ath_hw *ah)
&fops_btcoex);
#endif
#ifdef CONFIG_ATH9K_DYNACK
debugfs_create_file("ack_to", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
sc, &fops_ackto);
#endif
return 0;
}