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31 lines
772 B
C
31 lines
772 B
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Backlight API for Chrome EC */
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#ifndef __CROS_EC_BACKLIGHT_H
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#define __CROS_EC_BACKLIGHT_H
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#include "common.h"
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#include "gpio.h"
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/**
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* Interrupt handler for backlight.
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*
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* @param signal Signal which triggered the interrupt.
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*/
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#ifdef CONFIG_BACKLIGHT_REQ_GPIO
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void backlight_interrupt(enum gpio_signal signal);
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#else
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static inline void backlight_interrupt(enum gpio_signal signal) { }
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#endif /* !CONFIG_BACKLIGHT_REQ_GPIO */
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/**
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* Activate/Deactivate the backlight GPIO pin considering active high or low.
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*/
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void enable_backlight(int enabled);
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#endif /* __CROS_EC_BACKLIGHT_H */
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