From 7a90744c333e5038793217f695dbbdb776b58698 Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Tue, 16 Sep 2014 02:13:14 +0200 Subject: [PATCH] ath9k: add debugfs support for dynack Add ack_to entry to debugfs in order to dump current ACK timeout value Signed-off-by: Lorenzo Bianconi Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/debug.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 5d8b5ea..46f20a3 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -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; } -- 2.7.4