aabc8aca47
Most credit goes to: Roman Skylarov Additional integration and refactoring by myself. *** COMPLETELY UNTESTED *** Change-Id: Ia64c36d92e0214c6b15f7a868df286f8113ea27b
57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
/***************************************************************************
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* __________ __ ___
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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*
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* Copyright (C) 2017 Marcin Bukat
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#include "config.h"
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#include "backlight-target.h"
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#include "sysfs.h"
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#include "panic.h"
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#include "lcd.h"
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static const char * const sysfs_kb_brightness =
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"/sys/class/jz_pwm_dev/jz_pwm_dev4/duty_ratio";
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static const char * const sysfs_kb_power =
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"/sys/class/jz_pwm_dev/jz_pwm_dev4/enable";
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void buttonlight_hw_on(void)
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{
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sysfs_set_int(sysfs_kb_power, 1);
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}
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void buttonlight_hw_off(void)
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{
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sysfs_set_int(sysfs_kb_power, 0);
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}
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void buttonlight_hw_brightness(int brightness)
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{
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if (brightness > MAX_BRIGHTNESS_SETTING)
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brightness = MAX_BRIGHTNESS_SETTING;
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if (brightness < MIN_BRIGHTNESS_SETTING)
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brightness = MIN_BRIGHTNESS_SETTING;
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sysfs_set_int(sysfs_kb_brightness, brightness);
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}
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