LowLevel/Luma3DS-3GX
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Previous release broke .dat booting from a 9.0 NAND if A9LH was installed

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Also, more clean-up
This commit is contained in:
Aurora 2016-03-05 20:22:31 +01:00
parent 9ab6d107b4
commit a58cb05f2c
3 changed files with 11 additions and 18 deletions
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18
source/firm.c
View File

@ -26,6 +26,10 @@ char *firmPathPatched = NULL;
void setupCFW(void){
//Determine if booting with A9LH via PDN_SPI_CNT
u8 a9lhBoot = (*(u8*)0x101401C0 == 0x0) ? 1 : 0;
//Retrieve the last booted FIRM via CFG_BOOTENV
u8 previousFirm = *(u8*)0x10010000;
u8 overrideConfig = 0;
char lastConfigPath[] = "rei/lastbootcfg";
@ -35,23 +39,23 @@ void setupCFW(void){
//Get pressed buttons
pressed = HID_PAD;
//Determine if A9LH is installed via PDN_SPI_CNT and an user flag
if((*(u8*)0x101401C0 == 0x0) || fileExists("/rei/installeda9lh")){
//Determine if A9LH is installed
if(a9lhBoot || fileExists("/rei/installeda9lh")){
a9lhSetup = 1;
//Check flag for > 9.2 SysNAND
if(fileExists("/rei/updatedsysnand")) updatedSys = 1;
}
//If using A9LH and it's a MCU reboot, try to force boot options
if(a9lhSetup && *(u8*)0x10010000 && fileExists(lastConfigPath)){
//If booting with A9LH and it's a MCU reboot, try to force boot options
if(a9lhBoot && previousFirm && fileExists(lastConfigPath)){
u8 tempConfig;
fileRead((u8*)&tempConfig, lastConfigPath, 1);
//Always force a sysNAND boot when quitting AGB_FIRM
if(*(u8*)0x10010000 == 0x7) {
if(previousFirm == 0x7) {
if(!updatedSys) mode = tempConfig & 0x1;
overrideConfig = 1;
//Else, force the last boot options unless A is pressed
//Else, force the last used boot options unless A is pressed
} else if(!(pressed & BUTTON_A)) {
mode = tempConfig & 0x1;
emuNAND = (tempConfig >> 1) & 0x1;
@ -71,7 +75,7 @@ void setupCFW(void){
(!updatedSys && mode && !(pressed & BUTTON_R1))) emuNAND = 1;
//Write the current boot options on A9LH
if(a9lhSetup){
if(a9lhBoot){
u8 tempConfig = (mode | (emuNAND << 1)) & 0x3;
fileWrite((u8*)&tempConfig, lastConfigPath, 1);
}

10
source/fs.c
View File

@ -18,16 +18,6 @@ int mountSD()
return 0;
}
int unmountSD()
{
if (f_mount(NULL, "0:", 1) != FR_OK) {
//printF("Failed to mount SD card!");
return 1;
}
//printF("Unmounted SD card");
return 0;
}
int fileReadOffset(u8 *dest, const char *path, u32 size, u32 offset){
FRESULT fr;
FIL fp;

1
source/fs.h
View File

@ -8,7 +8,6 @@
#include "types.h"
int mountSD();
int unmountSD();
int fileReadOffset(u8 *dest, const char *path, u32 size, u32 offset);
int fileRead(u8 *dest, const char *path, u32 size);
int fileWrite(const u8 *buffer, const char *path, u32 size);