mirror of
https://github.com/Rockbox/rockbox.git
synced 2026-01-22 01:30:35 -05:00
1183b1ab1b
Original author Melissa Autumn (https://codeberg.org/oopsallnaps/rockbox-hibyos) with contributions from Marc Aarts. Adaptation to Rockbox standards by Marc Aarts Change-Id: I09e5af7ba0a75c648e4b9fd424badc2d3665c943
124 lines
3.4 KiB
C
124 lines
3.4 KiB
C
/***************************************************************************
|
|
* __________ __ ___
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
*
|
|
* Copyright (C) 2017 Marcin Bukat
|
|
* Copyright (C) 2019 by Roman Stolyarov
|
|
* Copyright (C) 2025 by Melissa Autumn
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <stdbool.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include "config.h"
|
|
#include "backlight-target.h"
|
|
#include "sysfs.h"
|
|
#include "panic.h"
|
|
#include "lcd.h"
|
|
|
|
#if defined(BACKLIGHT_RG_NANO)
|
|
static const char * const sysfs_bl_brightness =
|
|
"/sys/class/backlight/backlight/brightness";
|
|
|
|
static const char * const sysfs_bl_power =
|
|
"/sys/class/backlight/backlight/bl_power";
|
|
#elif defined(BACKLIGHT_HIBY)
|
|
static const char * const sysfs_bl_brightness =
|
|
"/sys/class/backlight/backlight_pwm0/brightness";
|
|
|
|
static const char * const sysfs_bl_power =
|
|
"/sys/class/backlight/backlight_pwm0/bl_power";
|
|
#else
|
|
static const char * const sysfs_bl_brightness =
|
|
"/sys/class/backlight/pwm-backlight.0/brightness";
|
|
|
|
static const char * const sysfs_bl_power =
|
|
"/sys/class/backlight/pwm-backlight.0/bl_power";
|
|
#endif
|
|
|
|
bool backlight_hw_init(void)
|
|
{
|
|
backlight_hw_on();
|
|
backlight_hw_brightness(DEFAULT_BRIGHTNESS_SETTING);
|
|
#ifdef HAVE_BUTTON_LIGHT
|
|
buttonlight_hw_on();
|
|
#ifdef HAVE_BUTTONLIGHT_BRIGHTNESS
|
|
buttonlight_hw_brightness(DEFAULT_BRIGHTNESS_SETTING);
|
|
#endif
|
|
#endif
|
|
return true;
|
|
}
|
|
|
|
static int last_bl = -1;
|
|
|
|
/* Ref: https://www.kernel.org/doc/html/latest/gpu/backlight.html#c.backlight_properties */
|
|
#define BACKLIGHT_POWER_ON 0
|
|
#define BACKLIGHT_POWER_REDUCED 1
|
|
#define BACKLIGHT_POWER_OFF 4
|
|
|
|
void backlight_hw_on(void)
|
|
{
|
|
if (last_bl != BACKLIGHT_POWER_ON) {
|
|
#ifdef HAVE_LCD_ENABLE
|
|
lcd_enable(true);
|
|
#endif
|
|
last_bl = BACKLIGHT_POWER_ON;
|
|
sysfs_set_int(sysfs_bl_power, last_bl);
|
|
}
|
|
}
|
|
|
|
void backlight_hw_off(void)
|
|
{
|
|
if (last_bl != BACKLIGHT_POWER_REDUCED) {
|
|
last_bl = BACKLIGHT_POWER_REDUCED;
|
|
sysfs_set_int(sysfs_bl_power, last_bl);
|
|
#ifdef HAVE_LCD_ENABLE
|
|
lcd_enable(false);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void backlight_hw_brightness(int brightness)
|
|
{
|
|
/* cap range, just in case */
|
|
if (brightness > MAX_BRIGHTNESS_SETTING)
|
|
brightness = MAX_BRIGHTNESS_SETTING;
|
|
if (brightness < MIN_BRIGHTNESS_SETTING)
|
|
brightness = MIN_BRIGHTNESS_SETTING;
|
|
|
|
sysfs_set_int(sysfs_bl_brightness, brightness);
|
|
}
|
|
|
|
#ifdef HAVE_LCD_SLEEP
|
|
void lcd_awake(void)
|
|
{
|
|
/* Nothing to do */
|
|
}
|
|
|
|
void lcd_sleep(void)
|
|
{
|
|
if (last_bl != BACKLIGHT_POWER_OFF) {
|
|
last_bl = BACKLIGHT_POWER_OFF;
|
|
sysfs_set_int(sysfs_bl_power, last_bl);
|
|
#ifdef HAVE_LCD_ENABLE
|
|
lcd_enable(false);
|
|
#endif
|
|
}
|
|
}
|
|
#endif
|