180cef835b
Provided by Roman Stolyarov Integration, Refactoring, and Upstreaming by Solomon Peachy X3II confirmed working by forum tester, X20 is nearly identical. This includes bootloader, main firmware, and the flash image patcher. Eventual Todo: * Further refactor AGPTek Rocker & xduoo hiby bootloaders * Further refactor AGPTek Rocker & xduoo hosted platform code Change-Id: I34a674051d368efcc75d1d18c725971fe46c3eee
64 lines
1.9 KiB
C
64 lines
1.9 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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static const char * const sysfs_bl_brightness =
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"/sys/class/backlight/pwm-backlight.0/brightness";
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static const char * const sysfs_bl_power =
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"/sys/class/backlight/pwm-backlight.0/bl_power";
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bool backlight_hw_init(void)
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{
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backlight_hw_on();
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backlight_hw_brightness(DEFAULT_BRIGHTNESS_SETTING);
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return true;
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}
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void backlight_hw_on(void)
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{
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sysfs_set_int(sysfs_bl_power, 0);
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}
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void backlight_hw_off(void)
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{
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sysfs_set_int(sysfs_bl_power, 1);
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}
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void backlight_hw_brightness(int brightness)
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{
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/* cap range, just in case */
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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_bl_brightness, brightness);
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}
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