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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>
This commit is contained in:
Vivek Natarajan 2010-06-22 11:52:37 +05:30 committed by John W. Linville
parent ee031112d9
commit 9a75c2ff6d
4 changed files with 14 additions and 4 deletions
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1
drivers/net/wireless/ath/ath9k/ath9k.h
View File

@ -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,

9
drivers/net/wireless/ath/ath9k/gpio.c
View File

@ -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);
}

4
drivers/net/wireless/ath/ath9k/init.c
View File

@ -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) { \

4
drivers/net/wireless/ath/ath9k/main.c
View File

@ -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);