diff options
Diffstat (limited to 'include/linux/leds.h')
| -rw-r--r-- | include/linux/leds.h | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h index cd545580e069..c6f8dad2ceb0 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -38,6 +38,9 @@ struct led_classdev { #define LED_SUSPENDED (1 << 0) /* Upper 16 bits reflect control information */ #define LED_CORE_SUSPENDRESUME (1 << 16) +#define LED_BLINK_ONESHOT (1 << 17) +#define LED_BLINK_ONESHOT_STOP (1 << 18) +#define LED_BLINK_INVERT (1 << 19) /* Set LED brightness level */ /* Must not sleep, use a workqueue if needed */ @@ -103,7 +106,25 @@ extern void led_blink_set(struct led_classdev *led_cdev, unsigned long *delay_on, unsigned long *delay_off); /** - * led_brightness_set - set LED brightness + * led_blink_set_oneshot - do a oneshot software blink + * @led_cdev: the LED to start blinking + * @delay_on: the time it should be on (in ms) + * @delay_off: the time it should ble off (in ms) + * @invert: blink off, then on, leaving the led on + * + * This function makes the LED blink one time for delay_on + + * delay_off time, ignoring the request if another one-shot + * blink is already in progress. + * + * If invert is set, led blinks for delay_off first, then for + * delay_on and leave the led on after the on-off cycle. + */ +extern void led_blink_set_oneshot(struct led_classdev *led_cdev, + unsigned long *delay_on, + unsigned long *delay_off, + int invert); +/** + * led_set_brightness - set LED brightness * @led_cdev: the LED to set * @brightness: the brightness to set it to * @@ -111,7 +132,7 @@ extern void led_blink_set(struct led_classdev *led_cdev, * software blink timer that implements blinking when the * hardware doesn't. */ -extern void led_brightness_set(struct led_classdev *led_cdev, +extern void led_set_brightness(struct led_classdev *led_cdev, enum led_brightness brightness); /* @@ -150,6 +171,10 @@ extern void led_trigger_event(struct led_trigger *trigger, extern void led_trigger_blink(struct led_trigger *trigger, unsigned long *delay_on, unsigned long *delay_off); +extern void led_trigger_blink_oneshot(struct led_trigger *trigger, + unsigned long *delay_on, + unsigned long *delay_off, + int invert); #else |