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2df9ba8814
No functional changes. But hey, I'm having lots of fun reformatting comments. BUG=chrome-os-partner:15579 BRANCH=none TEST=fanset -1; fanset 0; fanset 4000 Change-Id: Iddcea5b8e59fa6668cdd347b6d31155c28991521 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/36585 Reviewed-by: Bill Richardson <wfrichar@chromium.org>
71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
/* Copyright (c) 2012 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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/* PWM module for Chrome EC */
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#ifndef __CROS_EC_PWM_H
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#define __CROS_EC_PWM_H
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#include "common.h"
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/**
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* Enable/disable the fan.
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*
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* Should be called by whatever function enables the power supply to the fan.
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*/
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void pwm_enable_fan(int enable);
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/**
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* Enable/disable fan RPM control logic.
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*
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* @param rpm_mode Enable (1) or disable (0) RPM control loop; when
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* disabled, fan duty cycle will be used.
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*/
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void pwm_set_rpm_mode(int enable);
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/**
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* Get the current fan RPM.
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*/
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int pwm_get_fan_rpm(void);
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/**
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* Get the target fan RPM.
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*/
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int pwm_get_fan_target_rpm(void);
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/**
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* Set the target fan RPM.
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*
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* @param rpm Target RPM; pass -1 to set fan to maximum.
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*/
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void pwm_set_fan_target_rpm(int rpm);
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/**
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* Set the fan PWM duty cycle (0-100), disabling the automatic control.
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*/
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void pwm_set_fan_duty(int percent);
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/**
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* Enable/disable the keyboard backlight.
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*/
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void pwm_enable_keyboard_backlight(int enable);
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/**
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* Get the keyboard backlight enable/disable status (1=enabled, 0=disabled).
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*/
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int pwm_get_keyboard_backlight_enabled(void);
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/**
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* Get the keyboard backlight percentage (0=off, 100=max).
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*/
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int pwm_get_keyboard_backlight(void);
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/**
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* Set the keyboard backlight percentage (0=off, 100=max).
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*/
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void pwm_set_keyboard_backlight(int percent);
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#endif /* __CROS_EC_PWM_H */
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