Commit 232aa23e authored by João Paulo Rechi Vita's avatar João Paulo Rechi Vita Committed by Johannes Berg
Browse files

rfkill: Create rfkill-none LED trigger 



Creates a new trigger rfkill-none, as a complement to rfkill-any, which
drives LEDs when any radio is enabled. The new trigger is meant to turn
a LED ON whenever all radios are OFF, and turn it OFF otherwise.

Signed-off-by: default avatarJoão Paulo Rechi Vita <jprvita@endlessm.com>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent d874cd74

net/rfkill/core.c

+20 −7
Original line number Diff line number Diff line
@@ -178,6 +178,7 @@ static void rfkill_led_trigger_unregister(struct rfkill *rfkill) 
}



static struct led_trigger rfkill_any_led_trigger;

static struct led_trigger rfkill_none_led_trigger;

static struct work_struct rfkill_global_led_trigger_work;



static void rfkill_global_led_trigger_worker(struct work_struct *work)
@@ -195,6 +196,8 @@ static void rfkill_global_led_trigger_worker(struct work_struct *work) 
	mutex_unlock(&rfkill_global_mutex);



	led_trigger_event(&rfkill_any_led_trigger, brightness);

	led_trigger_event(&rfkill_none_led_trigger,

			  brightness == LED_OFF ? LED_FULL : LED_OFF);

}



static void rfkill_global_led_trigger_event(void)
@@ -202,22 +205,32 @@ static void rfkill_global_led_trigger_event(void) 
	schedule_work(&rfkill_global_led_trigger_work);

}



static void rfkill_global_led_trigger_activate(struct led_classdev *led_cdev)

{

	rfkill_global_led_trigger_event();

}



static int rfkill_global_led_trigger_register(void)

{

	int ret;



	INIT_WORK(&rfkill_global_led_trigger_work,

			rfkill_global_led_trigger_worker);



	rfkill_any_led_trigger.name = "rfkill-any";

	rfkill_any_led_trigger.activate = rfkill_global_led_trigger_activate;

	return led_trigger_register(&rfkill_any_led_trigger);

	ret = led_trigger_register(&rfkill_any_led_trigger);

	if (ret)

		return ret;



	rfkill_none_led_trigger.name = "rfkill-none";

	ret = led_trigger_register(&rfkill_none_led_trigger);

	if (ret)

		led_trigger_unregister(&rfkill_any_led_trigger);

	else

		/* Delay activation until all global triggers are registered */

		rfkill_global_led_trigger_event();



	return ret;

}



static void rfkill_global_led_trigger_unregister(void)

{

	led_trigger_unregister(&rfkill_none_led_trigger);

	led_trigger_unregister(&rfkill_any_led_trigger);

	cancel_work_sync(&rfkill_global_led_trigger_work);

}