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/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* PWM module for Chrome EC */
#ifndef __CROS_EC_PWM_H
#define __CROS_EC_PWM_H
#include "common.h"
/* Enable/disable the fan. This should be called by whatever function
* enables the power supply to the fan. */
int pwm_enable_fan(int enable);
/* Get the current fan RPM. */
int pwm_get_fan_rpm(void);
/* Get the target fan RPM. */
int pwm_get_fan_target_rpm(void);
/* Set the target fan RPM. Pass -1 to set fan to maximum. */
int pwm_set_fan_target_rpm(int rpm);
/* Set the fan PWM duty cycle (0-100), disabling the automatic control. */
int pwm_set_fan_duty(int percent);
/* Enable/disable the keyboard backlight. */
int pwm_enable_keyboard_backlight(int enable);
/* Get the keyboard backlight enable/disable status (1=enabled, 0=disabled). */
int pwm_get_keyboard_backlight_enabled(void);
/* Get the keyboard backlight percentage (0=off, 100=max). */
int pwm_get_keyboard_backlight(void);
/* Set the keyboard backlight percentage (0=off, 100=max). */
int pwm_set_keyboard_backlight(int percent);
#endif /* __CROS_EC_PWM_H */
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