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authorVivek Natarajan <vnatarajan@atheros.com>2010-06-22 11:52:37 +0530
committerJohn W. Linville <linville@tuxdriver.com>2010-06-23 15:14:05 -0400
commit9a75c2ff6d539da0a565b5d64605031950b0853e (patch)
treeb928b6c55ee6cb108f444c4f38f99ffee5c28c0d
parentee031112d9eef5508f765ebc90ab488e01db002e (diff)
downloadlinux-9a75c2ff6d539da0a565b5d64605031950b0853e.tar.bz2
ath9k: Add a module parameter to disable led blinking.
Some vendors require the LED to be ON always irrespective of any radio activity. Introducing a module parameter to disable blinking, so that one can choose between always on or led blink during activity. Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/ath/ath9k/ath9k.h1
-rw-r--r--drivers/net/wireless/ath/ath9k/gpio.c9
-rw-r--r--drivers/net/wireless/ath/ath9k/init.c4
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c4
4 files changed, 14 insertions, 4 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 8d163ae4255e..3a14630e808e 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -628,6 +628,7 @@ static inline void ath_read_cachesize(struct ath_common *common, int *csz)
extern struct ieee80211_ops ath9k_ops;
extern int modparam_nohwcrypt;
+extern int led_blink;
irqreturn_t ath_isr(int irq, void *dev);
int ath9k_init_device(u16 devid, struct ath_softc *sc, u16 subsysid,
diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c
index 0ee75e79fe35..3a8ee999da5d 100644
--- a/drivers/net/wireless/ath/ath9k/gpio.c
+++ b/drivers/net/wireless/ath/ath9k/gpio.c
@@ -76,7 +76,8 @@ static void ath_led_brightness(struct led_classdev *led_cdev,
case LED_FULL:
if (led->led_type == ATH_LED_ASSOC) {
sc->sc_flags |= SC_OP_LED_ASSOCIATED;
- ieee80211_queue_delayed_work(sc->hw,
+ if (led_blink)
+ ieee80211_queue_delayed_work(sc->hw,
&sc->ath_led_blink_work, 0);
} else if (led->led_type == ATH_LED_RADIO) {
ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0);
@@ -143,7 +144,8 @@ void ath_init_leds(struct ath_softc *sc)
/* LED off, active low */
ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1);
- INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work);
+ if (led_blink)
+ INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work);
trigger = ieee80211_get_radio_led_name(sc->hw);
snprintf(sc->radio_led.name, sizeof(sc->radio_led.name),
@@ -180,7 +182,8 @@ void ath_init_leds(struct ath_softc *sc)
return;
fail:
- cancel_delayed_work_sync(&sc->ath_led_blink_work);
+ if (led_blink)
+ cancel_delayed_work_sync(&sc->ath_led_blink_work);
ath_deinit_leds(sc);
}
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 514a4014c198..8700e3dc53cf 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -33,6 +33,10 @@ int modparam_nohwcrypt;
module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444);
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
+int led_blink = 1;
+module_param_named(blink, led_blink, int, 0444);
+MODULE_PARM_DESC(blink, "Enable LED blink on activity");
+
/* We use the hw_value as an index into our private channel structure */
#define CHAN2G(_freq, _idx) { \
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index c8de50fa6378..5af259644bf6 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1241,7 +1241,9 @@ static void ath9k_stop(struct ieee80211_hw *hw)
aphy->state = ATH_WIPHY_INACTIVE;
- cancel_delayed_work_sync(&sc->ath_led_blink_work);
+ if (led_blink)
+ cancel_delayed_work_sync(&sc->ath_led_blink_work);
+
cancel_delayed_work_sync(&sc->tx_complete_work);
cancel_work_sync(&sc->paprd_work);