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-rw-r--r--include/linux/leds.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 39eee41d8c6f..dd93a22044bb 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 */
@@ -103,6 +106,24 @@ extern void led_blink_set(struct led_classdev *led_cdev,
unsigned long *delay_on,
unsigned long *delay_off);
/**
+ * 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_brightness_set - set LED brightness
* @led_cdev: the LED to set
* @brightness: the brightness to set it to
@@ -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