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94b4c511a6
This patch promotes board/nami/keyboard_backlight.c to common directory. Board customization is done via board_kblight_init callback. It currently supports two drivers: direct PWM control and lm3509. Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> BUG=b:78360907,b:78141647 BRANCH=none TEST=On Nami (for lm3509) and Sona (pwm), verify the followings: 1. Alt + brightness up/down works 2. After suspend-resume, brightness is restored 3. Lid close/open 4. After screen is off, keyboard backlight is turned off Change-Id: I584c06e8702fe7b289999698f277311cfd3400bd Reviewed-on: https://chromium-review.googlesource.com/1051027 Commit-Ready: Daisuke Nojiri <dnojiri@chromium.org> Tested-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
80 lines
1.6 KiB
C
80 lines
1.6 KiB
C
/* Copyright 2018 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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#ifndef __CROS_EC_KEYBOARD_BACKLIGHT_H
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#define __CROS_EC_KEYBOARD_BACKLIGHT_H
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struct kblight_conf {
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const struct kblight_drv *drv;
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};
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struct kblight_drv {
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/**
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* Initialize the keyboard backlight controller
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* @return EC_SUCCESS or EC_ERROR_*
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*/
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int (*init)(void);
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/**
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* Set the brightness
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* @param percent
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* @return EC_SUCCESS or EC_ERROR_*
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*/
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int (*set)(int percent);
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/**
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* Get the current brightness
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* @return Brightness in percentage
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*/
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int (*get)(void);
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/**
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* Enable or disable keyboard backlight
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* @param enable: 1=Enable, 0=Disable.
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* @return EC_SUCCESS or EC_ERROR_*
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*/
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int (*enable)(int enable);
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};
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/**
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* Initialize keyboard backlight per board
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*/
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void board_kblight_init(void);
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/**
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* Set keyboard backlight brightness
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*
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* @param percent Brightness in percentage
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* @return EC_SUCCESS or EC_ERROR_*
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*/
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int kblight_set(int percent);
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/**
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* Get keyboard backlight brightness
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*
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* @return Brightness in percentage
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*/
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int kblight_get(void);
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/**
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* Enable or disable keyboard backlight
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*
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* @param enable: 1=Enable, 0=Disable.
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* @return EC_SUCCESS or EC_ERROR_*
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*/
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int kblight_enable(int enable);
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/**
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* Register keyboard backlight controller
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*
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* @param drv: Driver of keyboard backlight controller
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* @return EC_SUCCESS or EC_ERROR_*
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*/
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int kblight_register(const struct kblight_drv *drv);
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extern const struct kblight_drv kblight_pwm;
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#endif /* __CROS_EC_KEYBOARD_BACKLIGHT_H */
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