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3ds: 3ds port sources. Second set of two.

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This commit adds new files written exclusively for the 3ds port.

Additional comments:

1. Plugins works, but will be enabled in future commits.
2. The port has only been tested on the New 3DS.
3. Not all features of rockbox have been tested so there may be bugs or non-functional features.
4. There is a known issue where a random crash can occur when exiting the app.

Change-Id: I122d0bea9aa604e04fca45ba8287cf79e6110769
This commit is contained in:
Mauricio Garrido 2025-10-08 19:30:37 -06:00 • committed by Solomon Peachy
parent a4de1195cd
commit 3b7dafb117
51 changed files with 7322 additions and 0 deletions
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114
firmware/target/hosted/ctru/backlight-ctru.c Normal file
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/***************************************************************************
* __________ __ ___
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
* Copyright (C) 2025 Mauricio G.
*
* 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 <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"
#include "debug.h"
#include <3ds/services/gsplcd.h>
#include <3ds/result.h>
#include "luminance-ctru.h"
/* TODO: To use calibrated values in rockbox,
MIN_BRIGHTNESS_SETTING (etc) would need to be
declared as constants in settings-list.c */
u32 ctru_min_lum = 16;
u32 ctru_max_lum = 142;
u32 ctru_luminance = 28;
/* FIXME: After calling gspLcdInit() the home menu will no longer be
accesible, to fix this we have to call gspLcdInit/gspLcdExit as
a mutex lock/unlock when using gsplcd.h functions. */
void lcd_mutex_lock(void)
{
Result res = gspLcdInit();
if (R_FAILED(res)) {
DEBUGF("backlight_hw_init: gspLcdInit failed.\n");
}
}
void lcd_mutex_unlock(void)
{
gspLcdExit();
}
bool backlight_hw_init(void)
{
/* read calibrated values */
ctru_luminance = getCurrentLuminance(false);
ctru_min_lum = getMinLuminancePreset();
ctru_max_lum = getMaxLuminancePreset();
backlight_hw_on();
backlight_hw_brightness(DEFAULT_BRIGHTNESS_SETTING);
return true;
}
static int last_bl = -1;
void backlight_hw_on(void)
{
lcd_mutex_lock();
if (last_bl != 1) {
#ifdef HAVE_LCD_ENABLE
lcd_enable(true);
#endif
GSPLCD_PowerOnAllBacklights();
last_bl = 1;
}
lcd_mutex_unlock();
}
void backlight_hw_off(void)
{
lcd_mutex_lock();
if (last_bl != 0) {
/* only power off rockbox ui screen */
GSPLCD_PowerOffBacklight(GSPLCD_SCREEN_BOTTOM);
#ifdef HAVE_LCD_ENABLE
lcd_enable(false);
#endif
last_bl = 0;
}
lcd_mutex_unlock();
}
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;
/* normalize level on both screens */
lcd_mutex_lock();
GSPLCD_SetBrightnessRaw(GSPLCD_SCREEN_TOP | GSPLCD_SCREEN_BOTTOM, (u32) brightness);
lcd_mutex_unlock();
}