LowLevel/Luma3DS-3GX
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Fixed Luma allowing users to go to the configuration after AGB_FIRM quits

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This commit is contained in:
Aurora 2016-07-18 15:06:35 +02:00
parent a0e8bc1de3
commit ae23a1c84d
4 changed files with 72 additions and 79 deletions
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4
source/crypto.c
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@ -350,8 +350,8 @@ u32 ctrNandRead(u32 sector, u32 sectorCount, u8 *outbuf)
//Sets the 7.x NCCH KeyX and the 6.x gamecard save data KeyY
void setRSAMod0DerivedKeys(void)
{
const u8 keyX0x25[0x10] = {0xCE, 0xE7, 0xD8, 0xAB, 0x30, 0xC0, 0x0D, 0xAE, 0x85, 0x0E, 0xF5, 0xE3, 0x82, 0xAC, 0x5A, 0xF3};
const u8 keyY0x2F[0x10] = {0xC3, 0x69, 0xBA, 0xA2, 0x1E, 0x18, 0x8A, 0x88, 0xA9, 0xAA, 0x94, 0xE5, 0x50, 0x6A, 0x9F, 0x16};
const u8 keyX0x25[0x10] = {0xCE, 0xE7, 0xD8, 0xAB, 0x30, 0xC0, 0x0D, 0xAE, 0x85, 0x0E, 0xF5, 0xE3, 0x82, 0xAC, 0x5A, 0xF3},
keyY0x2F[0x10] = {0xC3, 0x69, 0xBA, 0xA2, 0x1E, 0x18, 0x8A, 0x88, 0xA9, 0xAA, 0x94, 0xE5, 0x50, 0x6A, 0x9F, 0x16};
aes_setkey(0x25, keyX0x25, AES_KEYX, AES_INPUT_BE | AES_INPUT_NORMAL);
aes_setkey(0x2F, keyY0x2F, AES_KEYY, AES_INPUT_BE | AES_INPUT_NORMAL);

82
source/firm.c
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@ -89,22 +89,6 @@ void main(void)
//Get pressed buttons
u32 pressed = HID_PAD;
//If no configuration file exists or SELECT is held, load configuration menu
if(needConfig == CREATE_CONFIGURATION || ((pressed & BUTTON_SELECT) && !(pressed & BUTTON_L1)))
{
configureCFW(configPath);
//Zero the last booted FIRM flag
CFG_BOOTENV = 0;
nbChronoStarted = 1;
chrono(0);
chrono(2);
//Update pressed buttons
pressed = HID_PAD;
}
isFirmlaunch = false;
firmType = NATIVE_FIRM;
@ -125,42 +109,54 @@ void main(void)
newConfig = (u32)a9lhMode << 3;
if(a9lhBoot)
//If it's a MCU reboot, try to force boot options
if(a9lhBoot && CFG_BOOTENV)
{
//If it's a MCU reboot, try to force boot options
if(CFG_BOOTENV)
//Always force a sysNAND boot when quitting AGB_FIRM
if(CFG_BOOTENV == 7)
{
//Always force a sysNAND boot when quitting AGB_FIRM
if(CFG_BOOTENV == 7)
{
nandType = FIRMWARE_SYSNAND;
firmSource = updatedSys ? FIRMWARE_SYSNAND : (FirmwareSource)BOOTCONFIG(2, 1);
needConfig = DONT_CONFIGURE;
nandType = FIRMWARE_SYSNAND;
firmSource = updatedSys ? FIRMWARE_SYSNAND : (FirmwareSource)BOOTCONFIG(2, 1);
needConfig = DONT_CONFIGURE;
//Flag to prevent multiple boot options-forcing
newConfig |= 1 << 4;
}
/* Else, force the last used boot options unless a button is pressed
or the no-forcing flag is set */
else if(!pressed && !BOOTCONFIG(4, 1))
{
nandType = (FirmwareSource)BOOTCONFIG(0, 3);
firmSource = (FirmwareSource)BOOTCONFIG(2, 1);
needConfig = DONT_CONFIGURE;
}
//Flag to prevent multiple boot options-forcing
newConfig |= 1 << 4;
}
//If the SAFE MODE combo is held, force a sysNAND boot
else if(pressed == SAFE_MODE)
/* Else, force the last used boot options unless a button is pressed
or the no-forcing flag is set */
else if(!pressed && !BOOTCONFIG(4, 1))
{
a9lhMode = A9LH_WITH_SFIRM_FIRMPROT;
nandType = FIRMWARE_SYSNAND;
firmSource = FIRMWARE_SYSNAND;
nandType = (FirmwareSource)BOOTCONFIG(0, 3);
firmSource = (FirmwareSource)BOOTCONFIG(2, 1);
needConfig = DONT_CONFIGURE;
}
}
//If no configuration file exists or SELECT is held, load configuration menu
if(needConfig == CREATE_CONFIGURATION || ((pressed & BUTTON_SELECT) && !(pressed & BUTTON_L1)))
{
configureCFW(configPath);
//Zero the last booted FIRM flag
CFG_BOOTENV = 0;
nbChronoStarted = 1;
chrono(0);
chrono(2);
//Update pressed buttons
pressed = HID_PAD;
}
if(needConfig != DONT_CONFIGURE && pressed == SAFE_MODE)
{
a9lhMode = A9LH_WITH_SFIRM_FIRMPROT;
nandType = FIRMWARE_SYSNAND;
firmSource = FIRMWARE_SYSNAND;
needConfig = DONT_CONFIGURE;
}
//Boot options aren't being forced
if(needConfig != DONT_CONFIGURE)
{
@ -308,7 +304,7 @@ static inline void patchNativeFirm(FirmwareSource nandType, u32 emuHeader, A9LHM
//Sets the 7.x NCCH KeyX and the 6.x gamecard save data KeyY
if(a9lhMode == NO_A9LH)
setRSAMod0DerivedKeys();
//Find the Process9 .code location, size and memory address
u32 process9Size,
process9MemAddr;

55
source/screen.c
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@ -32,32 +32,31 @@
#include "draw.h"
#include "i2c.h"
#define ARM11_STUB_ADDRESS (0x25000000 - 0x40) //It's currently only 0x28 bytes large. We're putting 0x40 just to be sure here
#define WAIT_FOR_ARM9() *arm11Entry = 0; while(!*arm11Entry); ((void (*)())*arm11Entry)();
vu32 *arm11Entry = (vu32 *)0x1FFFFFF8;
void __attribute__((naked)) arm11Stub(void)
{
//Disable interrupts
__asm(".word 0xF10C01C0");
//Wait for the entry to be set
while(*arm11Entry == ARM11_STUB_ADDRESS);
//Jump to it
((void (*)())*arm11Entry)();
}
static inline void invokeArm11Function(void (*func)())
{
static bool hasCopiedStub = false;
static u32 hasCopiedStub = 0;
if(!hasCopiedStub)
{
memcpy((void *)ARM11_STUB_ADDRESS, arm11Stub, 0x40);
flushDCacheRange((void *)ARM11_STUB_ADDRESS, 0x40);
hasCopiedStub = true;
hasCopiedStub = 1;
}
*arm11Entry = (u32)func;
while(*arm11Entry);
*arm11Entry = ARM11_STUB_ADDRESS;
@ -83,25 +82,23 @@ void deinitScreens(void)
if(PDN_GPU_CNT != 1) invokeArm11Function(ARM11);
}
void updateBrightness(u32 brightnessLevel)
void updateBrightness(u32 brightnessIndex)
{
static int brightnessValue;
brightnessValue = brightness[brightnessLevel];
u32 brightnessLevel = brightness[brightnessIndex];
void __attribute__((naked)) ARM11(void)
{
//Disable interrupts
__asm(".word 0xF10C01C0");
__asm(".word 0xF10C01C0");
//Change brightness
*(vu32 *)0x10202240 = brightnessValue;
*(vu32 *)0x10202A40 = brightnessValue;
*(vu32 *)0x10202240 = brightnessLevel;
*(vu32 *)0x10202A40 = brightnessLevel;
WAIT_FOR_ARM9();
}
flushDCacheRange(&brightnessValue, 4);
flushDCacheRange(&brightnessLevel, 4);
invokeArm11Function(ARM11);
}
@ -111,9 +108,8 @@ void clearScreens(void)
{
//Disable interrupts
__asm(".word 0xF10C01C0");
//Setting up two simultaneous memory fills using the GPU
vu32 *REGs_PSC0 = (vu32 *)0x10400010;
REGs_PSC0[0] = (u32)fb->top_left >> 3; //Start address
REGs_PSC0[1] = (u32)(fb->top_left + 0x46500) >> 3; //End address
@ -125,7 +121,7 @@ void clearScreens(void)
REGs_PSC1[1] = (u32)(fb->bottom + 0x38400) >> 3; //End address
REGs_PSC1[2] = 0; //Fill value
REGs_PSC1[3] = (2 << 8) | 1; //32-bit pattern; start
while(!((REGs_PSC0[3] & 2) && (REGs_PSC1[3] & 2)));
if(fb->top_right != fb->top_left)
@ -134,13 +130,13 @@ void clearScreens(void)
REGs_PSC0[1] = (u32)(fb->top_right + 0x46500) >> 3; //End address
REGs_PSC0[2] = 0; //Fill value
REGs_PSC0[3] = (2 << 8) | 1; //32-bit pattern; start
while(!(REGs_PSC0[3] & 2));
}
WAIT_FOR_ARM9();
}
flushDCacheRange((void *)fb, sizeof(struct fb));
invokeArm11Function(ARM11);
}
@ -154,13 +150,13 @@ u32 initScreens(void)
//Disable interrupts
__asm(".word 0xF10C01C0");
u32 brightnessLevel = MULTICONFIG(0);
u32 brightnessLevel = brightness[MULTICONFIG(0)];
*(vu32 *)0x10141200 = 0x1007F;
*(vu32 *)0x10202014 = 0x00000001;
*(vu32 *)0x1020200C &= 0xFFFEFFFE;
*(vu32 *)0x10202240 = brightness[brightnessLevel];
*(vu32 *)0x10202A40 = brightness[brightnessLevel];
*(vu32 *)0x10202240 = brightnessLevel;
*(vu32 *)0x10202A40 = brightnessLevel;
*(vu32 *)0x10202244 = 0x1023E;
*(vu32 *)0x10202A44 = 0x1023E;
@ -246,7 +242,7 @@ u32 initScreens(void)
WAIT_FOR_ARM9();
}
if(needToInit)
{
flushDCacheRange(&config, 4);
@ -256,9 +252,8 @@ u32 initScreens(void)
//Turn on backlight
i2cWriteRegister(I2C_DEV_MCU, 0x22, 0x2A);
}
else
updateBrightness(MULTICONFIG(0));
else updateBrightness(MULTICONFIG(0));
clearScreens();
return needToInit;

10
source/screen.h
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@ -30,14 +30,16 @@
#include "types.h"
#define PDN_GPU_CNT (*(vu8 *)0x10141200)
#define ARM11_STUB_ADDRESS (0x25000000 - 0x40) //It's currently only 0x28 bytes large. We're putting 0x40 just to be sure here
#define WAIT_FOR_ARM9() *arm11Entry = 0; while(!*arm11Entry); ((void (*)())*arm11Entry)();
static volatile struct fb {
u8 *top_left;
u8 *top_right;
u8 *bottom;
u8 *top_left;
u8 *top_right;
u8 *bottom;
} *const fb = (volatile struct fb *)0x23FFFE00;
void deinitScreens(void);
void updateBrightness(u32 brightnessLevel);
void updateBrightness(u32 brightnessIndex);
void clearScreens(void);
u32 initScreens(void);