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d7efe5cdda
The current lm4 pwm module was using board-specific pins during this configuration. Move the implementation of configure_fan_gpios() to the board-specific files so that the pin configuration policy isn't a part of the common infrastructure. BUG=chrome-os-partner:19504 BRANCH=none TEST=successfully booted slippy with backlight turning on in OS. Change-Id: I325f1ac4639b4a78d8b860df7a8b688ca385b71b Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/51471 Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
76 lines
1.6 KiB
C
76 lines
1.6 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_fan_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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/**
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* Configure the GPIOs for the pwm module -- board-specific.
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*/
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void configure_fan_gpios(void);
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#endif /* __CROS_EC_PWM_H */
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