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/*
* Copyright (c) 2015 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __LED_H
#define __LED_H
/**
* struct led_uc_plat - Platform data the uclass stores about each device
*
* @label: LED label
*/
struct led_uc_plat {
const char *label;
};
enum led_state_t {
LEDST_OFF = 0,
LEDST_ON = 1,
LEDST_COUNT,
};
struct led_ops {
/**
* set_state() - set the state of an LED
*
* @dev: LED device to change
* @state: LED state to set
* @return 0 if OK, -ve on error
*/
int (*set_state)(struct udevice *dev, enum led_state_t state);
};
#define led_get_ops(dev) ((struct led_ops *)(dev)->driver->ops)
/**
* led_get_by_label() - Find an LED device by label
*
* @label: LED label to look up
* @devp: Returns the associated device, if found
* @return 0 if found, -ENODEV if not found, other -ve on error
*/
int led_get_by_label(const char *label, struct udevice **devp);
/**
* led_set_state() - set the state of an LED
*
* @dev: LED device to change
* @state: LED state to set
* @return 0 if OK, -ve on error
*/
int led_set_state(struct udevice *dev, enum led_state_t state);
#endif
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