Slightly improved the reboot patch, added emuNAND patch improvements from CakesFW, made the emuNAND patch completely version-independent

Should work as-is with future firmwares!

Makefile

@@ -12,7 +12,7 @@ ifneq ($(PYTHON_VER_MAJOR), 3)
 	PYTHON3 := py -3
 endif
 
-name := ReiNand
+name := AuReiNand
 
 dir_source := source
 dir_data := data
@@ -26,7 +26,7 @@ dir_loader := loader
 
 ASFLAGS := -mlittle-endian -mcpu=arm946e-s -march=armv5te
 CFLAGS := -Wall -Wextra -MMD -MP -marm $(ASFLAGS) -fno-builtin -fshort-wchar -std=c11 -Wno-main -O2 -ffast-math
-FLAGS := name=$(name).dat dir_out=$(abspath $(dir_out)) ICON=$(abspath icon.png) --no-print-directory
+FLAGS := name=$(name).dat dir_out=$(abspath $(dir_out)) ICON=$(abspath icon.png) APP_DESCRIPTION="Noob-friendly 3DS CFW." APP_AUTHOR="Reisyukaku/Aurora Wright" --no-print-directory
 
 objects_cfw = $(patsubst $(dir_source)/%.s, $(dir_build)/%.o, \
 			  $(patsubst $(dir_source)/%.c, $(dir_build)/%.o, \
@@ -43,28 +43,29 @@ launcher: $(dir_out)/$(name).dat
 a9lh: $(dir_out)/arm9loaderhax.bin
 
 .PHONY: emunand
-emunand: $(dir_out)/rei/emunand/emunand.bin
+emunand: $(dir_out)/aurei/emunand/emunand.bin
 
 .PHONY: reboot
-reboot: $(dir_out)/rei/reboot/reboot.bin
+reboot: $(dir_out)/aurei/reboot/reboot.bin
 
 .PHONY: ninjhax
 ninjhax: $(dir_out)/3ds/$(name)
 
 .PHONY: loader
-loader: $(dir_out)/rei/loader.bin
+loader: $(dir_out)/aurei/loader.bin
 
 .PHONY: clean
 clean:
 	@$(MAKE) $(FLAGS) -C $(dir_mset) clean
 	@$(MAKE) $(FLAGS) -C $(dir_ninjhax) clean
-	rm -rf $(dir_out) $(dir_build) $(dir_loader)/build $(dir_loader)/loader.elf
+	@rm -rf $(dir_out) $(dir_build)
+	@$(MAKE) -C $(dir_loader) clean
 
-$(dir_out)/$(name).dat: $(dir_build)/main.bin $(dir_out)/rei
+$(dir_out)/$(name).dat: $(dir_build)/main.bin $(dir_out)/aurei
 	@$(MAKE) $(FLAGS) -C $(dir_mset) launcher
 	dd if=$(dir_build)/main.bin of=$@ bs=512 seek=144
 
-$(dir_out)/arm9loaderhax.bin: $(dir_build)/main.bin $(dir_out)/rei
+$(dir_out)/arm9loaderhax.bin: $(dir_build)/main.bin $(dir_out)/aurei
 	@cp -av $(dir_build)/main.bin $@
 
 $(dir_out)/3ds/$(name):
@@ -73,21 +74,21 @@ $(dir_out)/3ds/$(name):
 	@mv $(dir_out)/$(name).3dsx $@
 	@mv $(dir_out)/$(name).smdh $@
 
-$(dir_out)/rei:
+$(dir_out)/aurei:
-	@mkdir -p "$(dir_out)/rei"
+	@mkdir -p "$(dir_out)/aurei"
 
-$(dir_out)/rei/emunand/emunand.bin: $(dir_emu)/emuCode.s
+$(dir_out)/aurei/emunand/emunand.bin: $(dir_emu)/emuCode.s
 	@armips $<
-	@mkdir -p "$(dir_out)/rei/emunand"
+	@mkdir -p "$(dir_out)/aurei/emunand"
 	@mv emunand.bin $@
 
-$(dir_out)/rei/reboot/reboot.bin: $(dir_reboot)/rebootCode.s
+$(dir_out)/aurei/reboot/reboot.bin: $(dir_reboot)/rebootCode.s
 	@armips $<
-	@mkdir -p "$(dir_out)/rei/reboot"
+	@mkdir -p "$(dir_out)/aurei/reboot"
 	@mv reboot.bin $@
 
-$(dir_out)/rei/loader.bin: $(dir_out)/rei $(dir_loader)/Makefile
+$(dir_out)/aurei/loader.bin: $(dir_out)/aurei $(dir_loader)/Makefile
-	@cd $(dir_loader) && make
+	@$(MAKE) -C $(dir_loader)
 	@mv $(dir_loader)/loader.bin $@
 
 $(dir_build)/main.bin: $(dir_build)/main.elf

emunand/emuCode.s

@@ -1,9 +1,6 @@
-.nds
+.arm.little
 
-sdmmc equ 0x434D4453	;dummy
+.create "emunand.bin", 0
-
-.create "emunand.bin", 0x0801A5C0
-.org 0x0801A5C0
 .arm
 nand_sd:
     ; Original code that still needs to be executed.
@@ -15,7 +12,7 @@ nand_sd:
 
     ; If we're already trying to access the SD, return.
     ldr r2, [r0, #4]
-    ldr r1, =sdmmc
+    ldr r1, [sdmmc]
     cmp r2, r1
     beq nand_sd_ret
 
@@ -23,12 +20,10 @@ nand_sd:
     ldr r2, [r0, #8]  ; Get sector to read
     cmp r2, #0  ; For GW compatibility, see if we're trying to read the ncsd header (sector 0)
 
-    ldr r3, =nand_offset
+    ldr r3, [nand_offset]
-    ldr r3, [r3]
     add r2, r3  ; Add the offset to the NAND in the SD.
 
-    ldreq r3, =ncsd_header_offset
+    ldreq r3, [ncsd_header_offset]
-    ldreq r3, [r3]
     addeq r2, r3  ; If we're reading the ncsd header, add the offset of that sector.
 
     str r2, [r0, #8]  ; Store sector to read
@@ -45,6 +40,7 @@ nand_sd:
         add r0, #4
         bx r0
 .pool
+sdmmc:	                .ascii "SDMC"
 nand_offset:		.ascii "NAND"       ; for rednand this should be 1
 ncsd_header_offset:	.ascii "NCSD"       ; depends on nand manufacturer + emunand type (GW/RED)
 .close

loader/Makefile

@@ -32,8 +32,8 @@ INCLUDES	:=	include source/fatfs  source/fatfs/sdmmc
 ARCH	:=	-mthumb -mthumb-interwork
 
 CFLAGS	:=	-g -Wall -O2\
-			-march=armv5te -mtune=arm946e-s -fomit-frame-pointer\
+			-march=armv5te -mtune=arm946e-s\
-			-ffast-math -std=c99\
+			-ffast-math -Wno-main -std=c99\
 			$(ARCH)
 
 CFLAGS	+=	$(INCLUDE) -DARM9
@@ -105,7 +105,7 @@ $(BUILD):
 #---------------------------------------------------------------------------------
 clean:
 	@echo clean ...
-	@rm -fr $(BUILD) $(OUTPUT).elf arm9loaderhax.bin
+	@rm -fr $(BUILD) $(OUTPUT).elf
  
  
 #---------------------------------------------------------------------------------

loader/source/buttons.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include "types.h"
+
+#define HID_PAD            ((~*(vu16 *)0x10146000) & 0xFFF)
+#define BUTTON_B           (1 << 1)
+#define BUTTON_X           (1 << 10)
+#define BUTTON_Y           (1 << 11)
+#define BUTTON_SELECT      (1 << 2)
+#define BUTTON_START       (1 << 3)
+#define BUTTON_RIGHT       (1 << 4)
+#define BUTTON_LEFT        (1 << 5)
+#define BUTTON_UP          (1 << 6)
+#define BUTTON_DOWN        (1 << 7)

loader/source/fatfs/diskio.c

@@ -69,7 +69,7 @@ DRESULT disk_read (
 DRESULT disk_write (
 	__attribute__((unused))
 	BYTE pdrv,			/* Physical drive nmuber to identify the drive */
-	const BYTE *buff,	/* Data to be written */
+	const BYTE *buff,       	/* Data to be written */
 	DWORD sector,		/* Sector address in LBA */
 	UINT count			/* Number of sectors to write */
 )

loader/source/fatfs/ff.c

@@ -811,7 +811,7 @@ FRESULT sync_fs (	/* FR_OK: successful, FR_DISK_ERR: failed */
 /*-----------------------------------------------------------------------*/
 /* Hidden API for hacks and disk tools */
 
-DWORD clust2sect (	/* !=0: Sector number, 0: Failed - invalid cluster# */
+static DWORD clust2sect (	/* !=0: Sector number, 0: Failed - invalid cluster# */
 	FATFS* fs,		/* File system object */
 	DWORD clst		/* Cluster# to be converted */
 )
@@ -829,7 +829,7 @@ DWORD clust2sect (	/* !=0: Sector number, 0: Failed - invalid cluster# */
 /*-----------------------------------------------------------------------*/
 /* Hidden API for hacks and disk tools */
 
-DWORD get_fat (	/* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluster status */
+static DWORD get_fat (	/* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluster status */
 	FATFS* fs,	/* File system object */
 	DWORD clst	/* FAT index number (cluster number) to get the value */
 )
@@ -884,7 +884,7 @@ DWORD get_fat (	/* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluste
 /* Hidden API for hacks and disk tools */
 
 #if !_FS_READONLY
-FRESULT put_fat (
+static FRESULT put_fat (
 	FATFS* fs,	/* File system object */
 	DWORD clst,	/* FAT index number (cluster number) to be changed */
 	DWORD val	/* New value to be set to the entry */
@@ -1314,7 +1314,7 @@ int cmp_lfn (			/* 1:Matched, 0:Not matched */
 }
 
 
-
+#if _FS_MINIMIZE <= 1 || _USE_LABEL || _FS_RPATH >= 2
 static
 int pick_lfn (			/* 1:Succeeded, 0:Buffer overflow */
 	WCHAR* lfnbuf,		/* Pointer to the Unicode-LFN buffer */
@@ -1345,6 +1345,7 @@ int pick_lfn (			/* 1:Succeeded, 0:Buffer overflow */
 
 	return 1;
 }
+#endif
 
 
 #if !_FS_READONLY
@@ -1385,7 +1386,7 @@ void fit_lfn (
 /*-----------------------------------------------------------------------*/
 /* Create numbered name                                                  */
 /*-----------------------------------------------------------------------*/
-#if _USE_LFN
+#if _USE_LFN && !_FS_READONLY
 static
 void gen_numname (
 	BYTE* dst,			/* Pointer to the buffer to store numbered SFN */

loader/source/fatfs/option/syscall.c

@@ -1,151 +0,0 @@
-/*------------------------------------------------------------------------*/
-/* Sample code of OS dependent controls for FatFs                         */
-/* (C)ChaN, 2014                                                          */
-/*------------------------------------------------------------------------*/
-
-
-#include "../ff.h"
-
-
-#if _FS_REENTRANT
-/*------------------------------------------------------------------------*/
-/* Create a Synchronization Object */
-/*------------------------------------------------------------------------*/
-/* This function is called in f_mount() function to create a new
-/  synchronization object, such as semaphore and mutex. When a 0 is returned,
-/  the f_mount() function fails with FR_INT_ERR.
-*/
-
-int ff_cre_syncobj (	/* !=0:Function succeeded, ==0:Could not create due to any error */
-	BYTE vol,			/* Corresponding logical drive being processed */
-	_SYNC_t *sobj		/* Pointer to return the created sync object */
-)
-{
-	int ret;
-
-
-	*sobj = CreateMutex(NULL, FALSE, NULL);		/* Win32 */
-	ret = (int)(*sobj != INVALID_HANDLE_VALUE);
-
-//	*sobj = SyncObjects[vol];			/* uITRON (give a static created sync object) */
-//	ret = 1;							/* The initial value of the semaphore must be 1. */
-
-//	*sobj = OSMutexCreate(0, &err);		/* uC/OS-II */
-//	ret = (int)(err == OS_NO_ERR);
-
-//	*sobj = xSemaphoreCreateMutex();	/* FreeRTOS */
-//	ret = (int)(*sobj != NULL);
-
-	return ret;
-}
-
-
-
-/*------------------------------------------------------------------------*/
-/* Delete a Synchronization Object                                        */
-/*------------------------------------------------------------------------*/
-/* This function is called in f_mount() function to delete a synchronization
-/  object that created with ff_cre_syncobj function. When a 0 is returned,
-/  the f_mount() function fails with FR_INT_ERR.
-*/
-
-int ff_del_syncobj (	/* !=0:Function succeeded, ==0:Could not delete due to any error */
-	_SYNC_t sobj		/* Sync object tied to the logical drive to be deleted */
-)
-{
-	int ret;
-
-
-	ret = CloseHandle(sobj);	/* Win32 */
-
-//	ret = 1;					/* uITRON (nothing to do) */
-
-//	OSMutexDel(sobj, OS_DEL_ALWAYS, &err);	/* uC/OS-II */
-//	ret = (int)(err == OS_NO_ERR);
-
-//  vSemaphoreDelete(sobj);		/* FreeRTOS */
-//	ret = 1;
-
-	return ret;
-}
-
-
-
-/*------------------------------------------------------------------------*/
-/* Request Grant to Access the Volume                                     */
-/*------------------------------------------------------------------------*/
-/* This function is called on entering file functions to lock the volume.
-/  When a 0 is returned, the file function fails with FR_TIMEOUT.
-*/
-
-int ff_req_grant (	/* 1:Got a grant to access the volume, 0:Could not get a grant */
-	_SYNC_t sobj	/* Sync object to wait */
-)
-{
-	int ret;
-
-	ret = (int)(WaitForSingleObject(sobj, _FS_TIMEOUT) == WAIT_OBJECT_0);	/* Win32 */
-
-//	ret = (int)(wai_sem(sobj) == E_OK);			/* uITRON */
-
-//	OSMutexPend(sobj, _FS_TIMEOUT, &err));		/* uC/OS-II */
-//	ret = (int)(err == OS_NO_ERR);
-
-//	ret = (int)(xSemaphoreTake(sobj, _FS_TIMEOUT) == pdTRUE);	/* FreeRTOS */
-
-	return ret;
-}
-
-
-
-/*------------------------------------------------------------------------*/
-/* Release Grant to Access the Volume                                     */
-/*------------------------------------------------------------------------*/
-/* This function is called on leaving file functions to unlock the volume.
-*/
-
-void ff_rel_grant (
-	_SYNC_t sobj	/* Sync object to be signaled */
-)
-{
-	ReleaseMutex(sobj);		/* Win32 */
-
-//	sig_sem(sobj);			/* uITRON */
-
-//	OSMutexPost(sobj);		/* uC/OS-II */
-
-//	xSemaphoreGive(sobj);	/* FreeRTOS */
-}
-
-#endif
-
-
-
-
-#if _USE_LFN == 3	/* LFN with a working buffer on the heap */
-/*------------------------------------------------------------------------*/
-/* Allocate a memory block                                                */
-/*------------------------------------------------------------------------*/
-/* If a NULL is returned, the file function fails with FR_NOT_ENOUGH_CORE.
-*/
-
-void* ff_memalloc (	/* Returns pointer to the allocated memory block */
-	UINT msize		/* Number of bytes to allocate */
-)
-{
-	return malloc(msize);	/* Allocate a new memory block with POSIX API */
-}
-
-
-/*------------------------------------------------------------------------*/
-/* Free a memory block                                                    */
-/*------------------------------------------------------------------------*/
-
-void ff_memfree (
-	void* mblock	/* Pointer to the memory block to free */
-)
-{
-	free(mblock);	/* Discard the memory block with POSIX API */
-}
-
-#endif

loader/source/fatfs/sdmmc/common.h

@@ -1,15 +1,4 @@
 #pragma once
 
-#include <stdint.h>
-#include <stddef.h>
 #include <stdbool.h>
-
+#include "../../types.h"
-#define u8 uint8_t
-#define u16 uint16_t
-#define u32 uint32_t
-#define u64 uint64_t
-
-#define vu8 volatile u8
-#define vu16 volatile u16
-#define vu32 volatile u32
-#define vu64 volatile u64

loader/source/fatfs/sdmmc/delay.h

@@ -6,4 +6,4 @@
 
 #include "common.h"
 
-void waitcycles(u32 us);
+void ioDelay(u32 us);

loader/source/fatfs/sdmmc/delay.s

@@ -1,15 +1,17 @@
-.arm
+// Copyright 2014 Normmatt
-.global waitcycles
+// Licensed under GPLv2 or any later version
-.type   waitcycles STT_FUNC
+// Refer to the license.txt file included.
 
-@waitcycles ( u32 us )
+.arm
-waitcycles:
+.global ioDelay
-	PUSH    {R0-R2,LR}
+.type   ioDelay STT_FUNC
-	STR     R0, [SP,#4]
+
-	waitcycles_loop:
+@ioDelay ( u32 us )
-		LDR     R3, [SP,#4]
+ioDelay:
-		SUBS    R2, R3, #1
+	ldr r1, =0x18000000  @ VRAM
-		STR     R2, [SP,#4]
+1:
-		CMP     R3, #0
+	@ Loop doing uncached reads from VRAM to make loop timing more reliable
-		BNE     waitcycles_loop
+	ldr r2, [r1]
-	POP     {R0-R2,PC}
+	subs r0, #1
+	bgt 1b
+	bx lr

loader/source/fatfs/sdmmc/sdmmc.c

@@ -2,8 +2,6 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include "common.h"
-
 #include "sdmmc.h"
 #include "delay.h"
 
@@ -286,7 +284,7 @@ static void InitSD()
 static int Nand_Init()
 {
     inittarget(&handleNAND);
-    waitcycles(0xF000);
+    ioDelay(0xF000);
 
     sdmmc_send_command(&handleNAND,0,0);
 
@@ -337,7 +335,7 @@ static int SD_Init()
 {
     inittarget(&handleSD);
 
-    waitcycles(1u << 18); //Card needs a little bit of time to be detected, it seems
+    ioDelay(1u << 18); //Card needs a little bit of time to be detected, it seems
     
     //If not inserted
     if (!(*((vu16*)0x1000601c) & TMIO_STAT0_SIGSTATE)) return -1;

loader/source/fatfs/sdmmc/sdmmc.h

@@ -125,4 +125,3 @@ mmcdevice *getMMCDevice(int drive);
 
 u32 sdmmc_nand_readsectors(u32 sector_no, u32 numsectors, vu8 *out);
 u32 sdmmc_nand_writesectors(u32 sector_no, u32 numsectors, vu8 *in);
-

loader/source/i2c.c

@@ -0,0 +1,98 @@
+#include "i2c.h"
+
+//-----------------------------------------------------------------------------
+
+static const struct { u8 bus_id, reg_addr; } dev_data[] = {
+    {0, 0x4A}, {0, 0x7A}, {0, 0x78},
+    {1, 0x4A}, {1, 0x78}, {1, 0x2C},
+    {1, 0x2E}, {1, 0x40}, {1, 0x44},
+    {2, 0xD6}, {2, 0xD0}, {2, 0xD2},
+    {2, 0xA4}, {2, 0x9A}, {2, 0xA0},
+};
+
+static inline u8 i2cGetDeviceBusId(u8 device_id) {
+    return dev_data[device_id].bus_id;
+}
+
+static inline u8 i2cGetDeviceRegAddr(u8 device_id) {
+    return dev_data[device_id].reg_addr;
+}
+
+//-----------------------------------------------------------------------------
+
+static vu8* reg_data_addrs[] = {
+    (vu8*)(I2C1_REG_OFF + I2C_REG_DATA),
+    (vu8*)(I2C2_REG_OFF + I2C_REG_DATA),
+    (vu8*)(I2C3_REG_OFF + I2C_REG_DATA),
+};
+
+static inline vu8* i2cGetDataReg(u8 bus_id) {
+    return reg_data_addrs[bus_id];
+}
+
+//-----------------------------------------------------------------------------
+
+static vu8* reg_cnt_addrs[] = {
+    (vu8*)(I2C1_REG_OFF + I2C_REG_CNT),
+    (vu8*)(I2C2_REG_OFF + I2C_REG_CNT),
+    (vu8*)(I2C3_REG_OFF + I2C_REG_CNT),
+};
+
+static inline vu8* i2cGetCntReg(u8 bus_id) {
+    return reg_cnt_addrs[bus_id];
+}
+
+//-----------------------------------------------------------------------------
+
+static inline void i2cWaitBusy(u8 bus_id) {
+    while (*i2cGetCntReg(bus_id) & 0x80);
+}
+
+static inline u32 i2cGetResult(u8 bus_id) {
+    i2cWaitBusy(bus_id);
+    return (*i2cGetCntReg(bus_id) >> 4) & 1;
+}
+
+static void i2cStop(u8 bus_id, u8 arg0) {
+    *i2cGetCntReg(bus_id) = (arg0 << 5) | 0xC0;
+    i2cWaitBusy(bus_id);
+    *i2cGetCntReg(bus_id) = 0xC5;
+}
+
+//-----------------------------------------------------------------------------
+
+static u32 i2cSelectDevice(u8 bus_id, u8 dev_reg) {
+    i2cWaitBusy(bus_id);
+    *i2cGetDataReg(bus_id) = dev_reg;
+    *i2cGetCntReg(bus_id) = 0xC2;
+    return i2cGetResult(bus_id);
+}
+
+static u32 i2cSelectRegister(u8 bus_id, u8 reg) {
+    i2cWaitBusy(bus_id);
+    *i2cGetDataReg(bus_id) = reg;
+    *i2cGetCntReg(bus_id) = 0xC0;
+    return i2cGetResult(bus_id);
+}
+
+//-----------------------------------------------------------------------------
+
+u32 i2cWriteRegister(u8 dev_id, u8 reg, u8 data) {
+    u8 bus_id = i2cGetDeviceBusId(dev_id);
+    u8 dev_addr = i2cGetDeviceRegAddr(dev_id);
+
+    for (int i = 0; i < 8; i++) {
+        if (i2cSelectDevice(bus_id, dev_addr) && i2cSelectRegister(bus_id, reg)) {
+            i2cWaitBusy(bus_id);
+            *i2cGetDataReg(bus_id) = data;
+            *i2cGetCntReg(bus_id) = 0xC1;
+            i2cStop(bus_id, 0);
+            if (i2cGetResult(bus_id))
+                return 1;
+        }
+        *i2cGetCntReg(bus_id) = 0xC5;
+        i2cWaitBusy(bus_id);
+    }
+
+    return 0;
+}

loader/source/i2c.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "types.h"
+
+#define I2C1_REG_OFF 0x10161000
+#define I2C2_REG_OFF 0x10144000
+#define I2C3_REG_OFF 0x10148000
+
+#define I2C_REG_DATA  0
+#define I2C_REG_CNT   1
+#define I2C_REG_CNTEX 2
+#define I2C_REG_SCL   4
+
+#define I2C_DEV_MCU  3
+#define I2C_DEV_GYRO 10
+#define I2C_DEV_IR   13
+
+u32 i2cWriteRegister(u8 dev_id, u8 reg, u8 data);

loader/source/main.c

@@ -1,19 +1,43 @@
+#include "types.h"
+#include "buttons.h"
+#include "screeninit.h"
 #include "fatfs/ff.h"
 
 #define PAYLOAD_ADDRESS	0x23F00000
 
-int main()
+static u32 loadPayload(const char *path){
-{
-    FATFS fs;
     FIL payload;
     unsigned int br;
-	
+    if(f_open(&payload, path, FA_READ) == FR_OK)
-    f_mount(&fs, "0:", 1);
-    if(f_open(&payload, "rei/arm9payload.bin", FA_READ) == FR_OK)
     {
-        f_read(&payload, (void *)PAYLOAD_ADDRESS, f_size(&payload), &br);
+        f_read(&payload, (void*)PAYLOAD_ADDRESS, f_size(&payload), &br);
-        ((void (*)())PAYLOAD_ADDRESS)();
+        f_close(&payload);
+
+        return 1;
     }
 
-    return 1;
+    return 0;
+}
+
+void main(void){
+    FATFS fs;
+    f_mount(&fs, "0:", 1);
+
+    //Get pressed buttons
+    u16 pressed = HID_PAD;
+
+    if(((pressed & BUTTON_B) && loadPayload("/aurei/payloads/b.bin")) ||
+       ((pressed & BUTTON_X) && loadPayload("/aurei/payloads/x.bin")) ||
+       ((pressed & BUTTON_Y) && loadPayload("/aurei/payloads/y.bin")) ||
+       ((pressed & BUTTON_SELECT) && loadPayload("/aurei/payloads/select.bin")) ||
+       ((pressed & BUTTON_START) && loadPayload("/aurei/payloads/start.bin")) ||
+       ((pressed & BUTTON_RIGHT) && loadPayload("/aurei/payloads/right.bin")) ||
+       ((pressed & BUTTON_LEFT) && loadPayload("/aurei/payloads/left.bin")) ||
+       ((pressed & BUTTON_UP) && loadPayload("/aurei/payloads/up.bin")) ||
+       ((pressed & BUTTON_DOWN) && loadPayload("/aurei/payloads/down.bin")) ||
+       loadPayload("/aurei/payloads/default.bin")){
+        //Determine if screen was already inited
+        if(*(vu8 *)0x10141200 == 0x1) initLCD();
+        ((void (*)())PAYLOAD_ADDRESS)();
+    }
 }

loader/source/screeninit.c

@@ -0,0 +1,111 @@
+#include "screeninit.h"
+#include "i2c.h"
+
+void initLCD(void){
+    vu32 *const arm11 = (vu32 *)0x1FFFFFF8;
+
+    void __attribute__((naked)) ARM11(void){
+        __asm(".word 0xF10C01C0");
+        *(vu32 *)0x10141200 = 0x1007F;
+        *(vu32 *)0x10202014 = 0x00000001;
+        *(vu32 *)0x1020200C &= 0xFFFEFFFE;
+        *(vu32 *)0x10202240 = 0x39;
+        *(vu32 *)0x10202A40 = 0x39;
+        *(vu32 *)0x10202244 = 0x1023E;
+        *(vu32 *)0x10202A44 = 0x1023E;
+
+        // Top screen
+        *(vu32 *)0x10400400 = 0x000001c2;
+        *(vu32 *)0x10400404 = 0x000000d1;
+        *(vu32 *)0x10400408 = 0x000001c1;
+        *(vu32 *)0x1040040c = 0x000001c1;
+        *(vu32 *)0x10400410 = 0x00000000;
+        *(vu32 *)0x10400414 = 0x000000cf;
+        *(vu32 *)0x10400418 = 0x000000d1;
+        *(vu32 *)0x1040041c = 0x01c501c1;
+        *(vu32 *)0x10400420 = 0x00010000;
+        *(vu32 *)0x10400424 = 0x0000019d;
+        *(vu32 *)0x10400428 = 0x00000002;
+        *(vu32 *)0x1040042c = 0x00000192;
+        *(vu32 *)0x10400430 = 0x00000192;
+        *(vu32 *)0x10400434 = 0x00000192;
+        *(vu32 *)0x10400438 = 0x00000001;
+        *(vu32 *)0x1040043c = 0x00000002;
+        *(vu32 *)0x10400440 = 0x01960192;
+        *(vu32 *)0x10400444 = 0x00000000;
+        *(vu32 *)0x10400448 = 0x00000000;
+        *(vu32 *)0x1040045C = 0x00f00190;
+        *(vu32 *)0x10400460 = 0x01c100d1;
+        *(vu32 *)0x10400464 = 0x01920002;
+        *(vu32 *)0x10400468 = 0x18300000;
+        *(vu32 *)0x10400470 = 0x80341;
+        *(vu32 *)0x10400474 = 0x00010501;
+        *(vu32 *)0x10400478 = 0;
+        *(vu32 *)0x10400490 = 0x000002D0;
+        *(vu32 *)0x1040049C = 0x00000000;
+
+        // Disco register
+        for(vu32 i = 0; i < 256; i++)
+            *(vu32 *)0x10400484 = 0x10101 * i;
+
+        // Bottom screen
+        *(vu32 *)0x10400500 = 0x000001c2;
+        *(vu32 *)0x10400504 = 0x000000d1;
+        *(vu32 *)0x10400508 = 0x000001c1;
+        *(vu32 *)0x1040050c = 0x000001c1;
+        *(vu32 *)0x10400510 = 0x000000cd;
+        *(vu32 *)0x10400514 = 0x000000cf;
+        *(vu32 *)0x10400518 = 0x000000d1;
+        *(vu32 *)0x1040051c = 0x01c501c1;
+        *(vu32 *)0x10400520 = 0x00010000;
+        *(vu32 *)0x10400524 = 0x0000019d;
+        *(vu32 *)0x10400528 = 0x00000052;
+        *(vu32 *)0x1040052c = 0x00000192;
+        *(vu32 *)0x10400530 = 0x00000192;
+        *(vu32 *)0x10400534 = 0x0000004f;
+        *(vu32 *)0x10400538 = 0x00000050;
+        *(vu32 *)0x1040053c = 0x00000052;
+        *(vu32 *)0x10400540 = 0x01980194;
+        *(vu32 *)0x10400544 = 0x00000000;
+        *(vu32 *)0x10400548 = 0x00000011;
+        *(vu32 *)0x1040055C = 0x00f00140;
+        *(vu32 *)0x10400560 = 0x01c100d1;
+        *(vu32 *)0x10400564 = 0x01920052;
+        *(vu32 *)0x10400568 = 0x18300000 + 0x46500;
+        *(vu32 *)0x10400570 = 0x80301;
+        *(vu32 *)0x10400574 = 0x00010501;
+        *(vu32 *)0x10400578 = 0;
+        *(vu32 *)0x10400590 = 0x000002D0;
+        *(vu32 *)0x1040059C = 0x00000000;
+
+        // Disco register
+        for(vu32 i = 0; i < 256; i++)
+            *(vu32 *)0x10400584 = 0x10101 * i;
+
+        // Enable backlight
+        i2cWriteRegister(I2C_DEV_MCU, 0x22, 0x2A);
+
+        *(vu32 *)0x10400468 = 0x18300000;
+        *(vu32 *)0x1040046c = 0x18300000;
+        *(vu32 *)0x10400494 = 0x18300000;
+        *(vu32 *)0x10400498 = 0x18300000;
+        *(vu32 *)0x10400568 = 0x18346500;
+        *(vu32 *)0x1040056c = 0x18346500;
+
+        //Set CakeBrah framebuffers
+        *((vu32 *)0x23FFFE00) = 0x18300000;
+        *((vu32 *)0x23FFFE04) = 0x18300000;
+        *((vu32 *)0x23FFFE08) = 0x18346500;
+
+        //Clear ARM11 entry offset
+        *arm11 = 0;
+
+        //Wait for the entry to be set
+        while(!*arm11);
+        //Jump to it
+        ((void (*)())*arm11)();
+    }
+
+    *arm11 = (u32)ARM11;
+    while(*arm11);
+}

loader/source/screeninit.h

@@ -0,0 +1,5 @@
+#pragma once
+
+#include "types.h"
+
+void initLCD(void);

loader/source/start.s

@@ -2,6 +2,9 @@
 .align 4
 .global _start
 _start:
+    @ Fix payloads like Decrypt9
+    mov r0, #0x5
+    mcr p15, 0, r0, c3, c0, 0  @ data bufferable
 
     @ Flush caches
     mov r0, #0

loader/source/types.h

@@ -0,0 +1,20 @@
+/*
+*   types.h
+*       by Reisyukaku
+*   Copyright (c) 2015 All Rights Reserved
+*/
+
+#pragma once
+
+#include <stdint.h>
+#include <stdlib.h>
+
+//Common data types
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+typedef volatile u8 vu8;
+typedef volatile u16 vu16;
+typedef volatile u32 vu32;
+typedef volatile u64 vu64;

reboot/rebootCode.s

@@ -1,12 +1,11 @@
-.nds
+.arm.little
-.create "reboot.bin", 0
 
 byteswritten equ 0x2000E000
-externalFirm equ 0x2000A000
 kernelCode equ 0x080F0000
 buffer equ 0x24000000
 fileOpen equ 0x4E45504F ;dummy
 
+.create "reboot.bin", 0
 .arm
 //Code jumps here right after the sprintf call
 process9Reboot:
@@ -34,18 +33,16 @@ process9Reboot:
 		ldreq r1, =(FileName - OpenFirm - 12)
 		addeq r1, pc
 		addne r1, sp, #0x3A8-0x70
-		ldr r0, =externalFirm
 		moveq r2, #1
 		movne r2, #0
-		str r2, [r0]
+		str r2, [externalFirm]
 		mov r2, #1
 		add r0, r7, #8
 		ldr r6, =fileOpen
 		blx r6
 	
     SeekFirm:
-		ldr r0, =externalFirm
+		ldr r0, [externalFirm]
-		ldr r0, [r0]
 		cmp r0, #1
 		moveq r0, r7
         ldreq r1, =byteswritten
@@ -99,9 +96,12 @@ Memcpy:
 		BX      LR
 
 FileName:
-	.dcw "sdmc:/rei/patched_firmware_sys.bin"
+	.dcw "sdmc:/aurei/patched_firmware_sys.bin"
 	.word 0x0
 
+externalFirm:
+	.word 0x2000A000
+
 .pool
 
 // Kernel Code

source/crypto.c

@@ -54,10 +54,10 @@ __asm__\
 }
 #endif /*__thumb__*/
 
-void aes_setkey(u8 keyslot, const void* key, u32 keyType, u32 mode)
+static void aes_setkey(u8 keyslot, const void *key, u32 keyType, u32 mode)
 {
 	if(keyslot <= 0x03) return; // Ignore TWL keys for now
-	u32 * key32 = (u32 *)key;
+	u32 *key32 = (u32 *)key;
 	*REG_AESCNT = (*REG_AESCNT & ~(AES_CNT_INPUT_ENDIAN | AES_CNT_INPUT_ORDER)) | mode;
 	*REG_AESKEYCNT = (*REG_AESKEYCNT >> 6 << 6) | keyslot | AES_KEYCNT_WRITE;
 
@@ -67,7 +67,7 @@ void aes_setkey(u8 keyslot, const void* key, u32 keyType, u32 mode)
 	REG_AESKEYFIFO[keyType] = key32[3];
 }
 
-void aes_use_keyslot(u8 keyslot)
+static void aes_use_keyslot(u8 keyslot)
 {
 	if(keyslot > 0x3F)
 		return;
@@ -76,7 +76,7 @@ void aes_use_keyslot(u8 keyslot)
 	*REG_AESCNT = *REG_AESCNT | 0x04000000; /* mystery bit */
 }
 
-void aes_setiv(const void* iv, u32 mode)
+static void aes_setiv(const void *iv, u32 mode)
 {
 	const u32 *iv32 = (const u32 *)iv;
 	*REG_AESCNT = (*REG_AESCNT & ~(AES_CNT_INPUT_ENDIAN | AES_CNT_INPUT_ORDER)) | mode;
@@ -98,9 +98,9 @@ void aes_setiv(const void* iv, u32 mode)
 	}
 }
 
-void aes_advctr(void *ctr, u32 val, u32 mode)
+static void aes_advctr(void *ctr, u32 val, u32 mode)
 {
-	u32 *ctr32 = (u32*)ctr;
+	u32 *ctr32 = (u32 *)ctr;
 	
 	int i;
 	if(mode & AES_INPUT_BE)
@@ -125,7 +125,7 @@ void aes_advctr(void *ctr, u32 val, u32 mode)
 	}
 }
 
-void aes_change_ctrmode(void *ctr, u32 fromMode, u32 toMode)
+static void aes_change_ctrmode(void *ctr, u32 fromMode, u32 toMode)
 {
 	u32 *ctr32 = (u32 *)ctr;
 	int i;
@@ -147,7 +147,7 @@ void aes_change_ctrmode(void *ctr, u32 fromMode, u32 toMode)
 	}
 }
 
-void aes_batch(void *dst, const void *src, u32 blockCount)
+static void aes_batch(void *dst, const void *src, u32 blockCount)
 {
 	*REG_AESBLKCNT = blockCount << 16;
 	*REG_AESCNT |=	AES_CNT_START;
@@ -180,7 +180,7 @@ void aes_batch(void *dst, const void *src, u32 blockCount)
 	}
 }
 
-void aes(void *dst, const void *src, u32 blockCount, void *iv, u32 mode, u32 ivMode)
+static void aes(void *dst, const void *src, u32 blockCount, void *iv, u32 mode, u32 ivMode)
 {
 	*REG_AESCNT =	mode |
 					AES_CNT_INPUT_ORDER | AES_CNT_OUTPUT_ORDER |
@@ -228,12 +228,12 @@ void aes(void *dst, const void *src, u32 blockCount, void *iv, u32 mode, u32 ivM
 ****************************************************************/
 
 //Nand key#2 (0x12C10)
-const u8 key2[0x10] = {
+static const u8 key2[0x10] = {
     0x42, 0x3F, 0x81, 0x7A, 0x23, 0x52, 0x58, 0x31, 0x6E, 0x75, 0x8E, 0x3A, 0x39, 0x43, 0x2E, 0xD0
 };
 
 //Get Nand CTR key
-void getNandCTR(u8 *buf, u32 console){
+static void getNandCTR(u8 *buf, u32 console){
     u8 *addr = (console ? (u8 *)0x080D8BBC : (u8 *)0x080D797C) + 0x0F;
     for(u8 keyLen = 0x10; keyLen; keyLen--)
         *(buf++) = *(addr--);

source/crypto.h

@@ -1,56 +1,53 @@
 // From http://github.com/b1l1s/ctr
 
-#ifndef CRYPTO_INC
+#pragma once
-#define CRYPTO_INC
 
 #include "types.h"
 
 /**************************AES****************************/
-#define REG_AESCNT				((volatile u32*)0x10009000)
+#define REG_AESCNT		((vu32 *)0x10009000)
-#define REG_AESBLKCNT			((volatile u32*)0x10009004)
+#define REG_AESBLKCNT		((vu32 *)0x10009004)
-#define REG_AESWRFIFO			((volatile u32*)0x10009008)
+#define REG_AESWRFIFO		((vu32 *)0x10009008)
-#define REG_AESRDFIFO			((volatile u32*)0x1000900C)
+#define REG_AESRDFIFO		((vu32 *)0x1000900C)
-#define REG_AESKEYSEL			((volatile u8 *)0x10009010)
+#define REG_AESKEYSEL		((vu8 *)0x10009010)
-#define REG_AESKEYCNT			((volatile u8 *)0x10009011)
+#define REG_AESKEYCNT		((vu8 *)0x10009011)
-#define REG_AESCTR				((volatile u32*)0x10009020)
+#define REG_AESCTR		((vu32 *)0x10009020)
 
-#define REG_AESKEYFIFO			((volatile u32*)0x10009100)
+#define REG_AESKEYFIFO		((vu32 *)0x10009100)
-#define REG_AESKEYXFIFO			((volatile u32*)0x10009104)
+#define REG_AESKEYXFIFO		((vu32 *)0x10009104)
-#define REG_AESKEYYFIFO			((volatile u32*)0x10009108)
+#define REG_AESKEYYFIFO		((vu32 *)0x10009108)
 
 #define AES_CCM_DECRYPT_MODE	(0u << 27)
 #define AES_CCM_ENCRYPT_MODE	(1u << 27)
-#define AES_CTR_MODE			(2u << 27)
+#define AES_CTR_MODE		(2u << 27)
-#define AES_CTR_MODE			(2u << 27)
+#define AES_CTR_MODE		(2u << 27)
 #define AES_CBC_DECRYPT_MODE	(4u << 27)
 #define AES_CBC_ENCRYPT_MODE	(5u << 27)
 #define AES_ECB_DECRYPT_MODE	(6u << 27)
 #define AES_ECB_ENCRYPT_MODE	(7u << 27)
-#define AES_ALL_MODES			(7u << 27)
+#define AES_ALL_MODES		(7u << 27)
 
-#define AES_CNT_START			0x80000000
+#define AES_CNT_START		0x80000000
-#define AES_CNT_INPUT_ORDER		0x02000000
+#define AES_CNT_INPUT_ORDER	0x02000000
 #define AES_CNT_OUTPUT_ORDER	0x01000000
 #define AES_CNT_INPUT_ENDIAN	0x00800000
 #define AES_CNT_OUTPUT_ENDIAN	0x00400000
-#define AES_CNT_FLUSH_READ		0x00000800
+#define AES_CNT_FLUSH_READ	0x00000800
-#define AES_CNT_FLUSH_WRITE		0x00000400
+#define AES_CNT_FLUSH_WRITE	0x00000400
 
-#define AES_INPUT_BE			(AES_CNT_INPUT_ENDIAN)
+#define AES_INPUT_BE		(AES_CNT_INPUT_ENDIAN)
-#define AES_INPUT_LE			0
+#define AES_INPUT_LE		0
-#define AES_INPUT_NORMAL		(AES_CNT_INPUT_ORDER)
+#define AES_INPUT_NORMAL	(AES_CNT_INPUT_ORDER)
-#define AES_INPUT_REVERSED		0
+#define AES_INPUT_REVERSED	0
 
-#define AES_BLOCK_SIZE			0x10
+#define AES_BLOCK_SIZE		0x10
 
-#define AES_KEYCNT_WRITE		(1 << 0x7)
+#define AES_KEYCNT_WRITE	(1 << 0x7)
-#define AES_KEYNORMAL			0
+#define AES_KEYNORMAL		0
-#define AES_KEYX				1
+#define AES_KEYX		1
-#define AES_KEYY				2
+#define AES_KEYY		2
 
 //NAND/FIRM stuff
 void nandFirm0(u8 *outbuf, u32 size, u32 console);
 void decArm9Bin(u8 *armHdr, u32 mode);
 void setKeyXs(u8 *armHdr);
-
-#endif

source/draw.c

@@ -8,36 +8,41 @@
 #include "fs.h"
 #include "memory.h"
 
-static struct fb *fb = (struct fb *)0x23FFFE00;
+static const struct fb {
+    u8 *top_left;
+    u8 *top_right;
+    u8 *bottom;
+} *const fb = (struct fb *)0x23FFFE00;
 
-void shutdownLCD(void){
+void __attribute__((naked)) shutdownLCD(void){
 
-    vu32 *arm11 = (vu32 *)0x1FFFFFF8;
+    vu32 *const arm11 = (u32 *)0x1FFFFFF8;
 
     //Clear ARM11 entry offset
     *arm11 = 0;
 
     //Shutdown LCDs
-    *(vu32*)0x10202A44 = 0;
+    *(vu32 *)0x10202A44 = 0;
-    *(vu32*)0x10202244 = 0;
+    *(vu32 *)0x10202244 = 0;
-    *(vu32*)0x10202014 = 0;
+    *(vu32 *)0x10202014 = 0;
     
-    //Wait for the ARM11 entrypoint to be set
+    //Wait for the entry to be set
     while(!*arm11);
     //Jump to it
     ((void (*)())*arm11)();
 }
 
-void clearScreen(void){
+static void clearScreens(void){
-    memset(fb->top_left, 0, 0x46500);
+    memset32(fb->top_left, 0, 0x46500);
-    memset(fb->top_right, 0, 0x46500);
+    memset32(fb->top_right, 0, 0x46500);
-    memset(fb->bottom, 0, 0x38400);
+    memset32(fb->bottom, 0, 0x38400);
 }
 
 void loadSplash(void){
-    //Check if it's a no-screen-init A9LH boot via PDN_GPU_CNT
+    clearScreens();
-    if(*(u8 *)0x10141200 == 0x1) return;
+    //Don't delay boot if no splash image is on the SD
-    clearScreen();
+    if(fileRead(fb->top_left, "/aurei/splash.bin", 0x46500) +
-    if(!fileRead(fb->top_left, "/rei/splash.bin", 0x46500)) return;
+       fileRead(fb->bottom, "/aurei/splashbottom.bin", 0x38400)){
-    u64 i = 0xFFFFFF; while(--i) __asm("mov r0, r0"); //Less Ghetto sleep func
+        u64 i = 0x1300000; while(--i) __asm("mov r0, r0"); //Less Ghetto sleep func
+    }
 }

source/draw.h

@@ -4,18 +4,9 @@
 *   Copyright (c) 2015 All Rights Reserved
 */
 
-#ifndef DRAW_INC
+#pragma once
-#define DRAW_INC
 
 #include "types.h"
 
-struct fb {
-    u8 *top_left;
-    u8 *top_right;
-    u8 *bottom;
-};
-
 void loadSplash(void);
-void shutdownLCD(void);
+void __attribute__((naked)) shutdownLCD(void);
-
-#endif

source/emunand.c

@@ -8,14 +8,24 @@
 #include "memory.h"
 #include "fatfs/sdmmc/sdmmc.h"
 
-static u8 *temp = (u8 *)0x24300000;
+void getEmunandSect(u32 *off, u32 *head, u32 emuNAND){
+    u8 *const temp = (u8 *)0x24300000;
 
-void getEmunandSect(u32 *off, u32 *head){
     u32 nandSize = getMMCDevice(0)->total_size;
-    if(sdmmc_sdcard_readsectors(nandSize, 1, temp) == 0){
+    u32 nandOffset = emuNAND == 1 ? 0 :
+                                  (nandSize > 0x200000 ? 0x400000 : 0x200000);
+
+    if(sdmmc_sdcard_readsectors(nandOffset + nandSize, 1, temp) == 0){
         if(*(u32 *)(temp + 0x100) == NCSD_MAGIC){
-            *off = 0;
+            *off = nandOffset;
-            *head = nandSize;
+            *head = nandOffset + nandSize;
+        }
+        //Fallback to the first emuNAND if there's no second one
+        else if(emuNAND == 2) getEmunandSect(off, head, 1);
+        //Check if a RedNAND is present
+        else if(sdmmc_sdcard_readsectors(1, 1, temp) == 0){
+            if(*(u32 *)(temp + 0x100) != NCSD_MAGIC)
+                *head = 0;
         }
     }
 }
@@ -53,3 +63,11 @@ void getMPU(void *pos, u32 *off, u32 size){
 
     *off = (u32)memsearch(pos, pattern, size, 4);
 }
+
+void getEmuCode(void *pos, u32 *off, u32 size){
+    u8 *proc9 = (u8 *)memsearch(pos, "ess9", size, 4);
+    const unsigned char pattern[] = {0x00, 0xFF, 0xFF, 0xFF};
+ 
+    //Looking for the last spot before Process9
+    *off = (u32)memsearch(pos, pattern, size - (size - (u32)(proc9 - (u8 *)pos)), 4) + 0xD;
+}

source/emunand.h

@@ -4,16 +4,14 @@
 *   Copyright (c) 2015 All Rights Reserved
 */
 
-#ifndef EMUNAND_INC
+#pragma once
-#define EMUNAND_INC
 
 #include "types.h"
 
 #define NCSD_MAGIC (0x4453434E)
 
-void getEmunandSect(u32 *off, u32 *head);
+void getEmunandSect(u32 *off, u32 *head, u32 emuNAND);
 void getSDMMC(void *pos, u32 *off, u32 size);
 void getEmuRW(void *pos, u32 size, u32 *readOff, u32 *writeOff);
 void getMPU(void *pos, u32 *off, u32 size);
-
+void getEmuCode(void *pos, u32 *off, u32 size);
-#endif

source/fatfs/diskio.c

@@ -69,7 +69,7 @@ DRESULT disk_read (
 DRESULT disk_write (
 	__attribute__((unused))
 	BYTE pdrv,			/* Physical drive nmuber to identify the drive */
-	const BYTE *buff,	/* Data to be written */
+	const BYTE *buff,       	/* Data to be written */
 	DWORD sector,		/* Sector address in LBA */
 	UINT count			/* Number of sectors to write */
 )

source/fatfs/ff.c

@@ -811,7 +811,7 @@ FRESULT sync_fs (	/* FR_OK: successful, FR_DISK_ERR: failed */
 /*-----------------------------------------------------------------------*/
 /* Hidden API for hacks and disk tools */
 
-DWORD clust2sect (	/* !=0: Sector number, 0: Failed - invalid cluster# */
+static DWORD clust2sect (	/* !=0: Sector number, 0: Failed - invalid cluster# */
 	FATFS* fs,		/* File system object */
 	DWORD clst		/* Cluster# to be converted */
 )
@@ -829,7 +829,7 @@ DWORD clust2sect (	/* !=0: Sector number, 0: Failed - invalid cluster# */
 /*-----------------------------------------------------------------------*/
 /* Hidden API for hacks and disk tools */
 
-DWORD get_fat (	/* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluster status */
+static DWORD get_fat (	/* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluster status */
 	FATFS* fs,	/* File system object */
 	DWORD clst	/* FAT index number (cluster number) to get the value */
 )
@@ -884,7 +884,7 @@ DWORD get_fat (	/* 0xFFFFFFFF:Disk error, 1:Internal error, 2..0x0FFFFFFF:Cluste
 /* Hidden API for hacks and disk tools */
 
 #if !_FS_READONLY
-FRESULT put_fat (
+static FRESULT put_fat (
 	FATFS* fs,	/* File system object */
 	DWORD clst,	/* FAT index number (cluster number) to be changed */
 	DWORD val	/* New value to be set to the entry */
@@ -1314,7 +1314,7 @@ int cmp_lfn (			/* 1:Matched, 0:Not matched */
 }
 
 
-
+#if _FS_MINIMIZE <= 1 || _USE_LABEL || _FS_RPATH >= 2
 static
 int pick_lfn (			/* 1:Succeeded, 0:Buffer overflow */
 	WCHAR* lfnbuf,		/* Pointer to the Unicode-LFN buffer */
@@ -1345,6 +1345,7 @@ int pick_lfn (			/* 1:Succeeded, 0:Buffer overflow */
 
 	return 1;
 }
+#endif
 
 
 #if !_FS_READONLY
@@ -1385,7 +1386,7 @@ void fit_lfn (
 /*-----------------------------------------------------------------------*/
 /* Create numbered name                                                  */
 /*-----------------------------------------------------------------------*/
-#if _USE_LFN
+#if _USE_LFN && !_FS_READONLY
 static
 void gen_numname (
 	BYTE* dst,			/* Pointer to the buffer to store numbered SFN */

source/fatfs/ffconf.h

@@ -23,7 +23,7 @@
 /  and optional writing functions as well. */
 
 
-#define _FS_MINIMIZE	0
+#define _FS_MINIMIZE	3
 /* This option defines minimization level to remove some basic API functions.
 /
 /   0: All basic functions are enabled.

source/fatfs/option/syscall.c

@@ -1,151 +0,0 @@
-/*------------------------------------------------------------------------*/
-/* Sample code of OS dependent controls for FatFs                         */
-/* (C)ChaN, 2014                                                          */
-/*------------------------------------------------------------------------*/
-
-
-#include "../ff.h"
-
-
-#if _FS_REENTRANT
-/*------------------------------------------------------------------------*/
-/* Create a Synchronization Object */
-/*------------------------------------------------------------------------*/
-/* This function is called in f_mount() function to create a new
-/  synchronization object, such as semaphore and mutex. When a 0 is returned,
-/  the f_mount() function fails with FR_INT_ERR.
-*/
-
-int ff_cre_syncobj (	/* !=0:Function succeeded, ==0:Could not create due to any error */
-	BYTE vol,			/* Corresponding logical drive being processed */
-	_SYNC_t *sobj		/* Pointer to return the created sync object */
-)
-{
-	int ret;
-
-
-	*sobj = CreateMutex(NULL, FALSE, NULL);		/* Win32 */
-	ret = (int)(*sobj != INVALID_HANDLE_VALUE);
-
-//	*sobj = SyncObjects[vol];			/* uITRON (give a static created sync object) */
-//	ret = 1;							/* The initial value of the semaphore must be 1. */
-
-//	*sobj = OSMutexCreate(0, &err);		/* uC/OS-II */
-//	ret = (int)(err == OS_NO_ERR);
-
-//	*sobj = xSemaphoreCreateMutex();	/* FreeRTOS */
-//	ret = (int)(*sobj != NULL);
-
-	return ret;
-}
-
-
-
-/*------------------------------------------------------------------------*/
-/* Delete a Synchronization Object                                        */
-/*------------------------------------------------------------------------*/
-/* This function is called in f_mount() function to delete a synchronization
-/  object that created with ff_cre_syncobj function. When a 0 is returned,
-/  the f_mount() function fails with FR_INT_ERR.
-*/
-
-int ff_del_syncobj (	/* !=0:Function succeeded, ==0:Could not delete due to any error */
-	_SYNC_t sobj		/* Sync object tied to the logical drive to be deleted */
-)
-{
-	int ret;
-
-
-	ret = CloseHandle(sobj);	/* Win32 */
-
-//	ret = 1;					/* uITRON (nothing to do) */
-
-//	OSMutexDel(sobj, OS_DEL_ALWAYS, &err);	/* uC/OS-II */
-//	ret = (int)(err == OS_NO_ERR);
-
-//  vSemaphoreDelete(sobj);		/* FreeRTOS */
-//	ret = 1;
-
-	return ret;
-}
-
-
-
-/*------------------------------------------------------------------------*/
-/* Request Grant to Access the Volume                                     */
-/*------------------------------------------------------------------------*/
-/* This function is called on entering file functions to lock the volume.
-/  When a 0 is returned, the file function fails with FR_TIMEOUT.
-*/
-
-int ff_req_grant (	/* 1:Got a grant to access the volume, 0:Could not get a grant */
-	_SYNC_t sobj	/* Sync object to wait */
-)
-{
-	int ret;
-
-	ret = (int)(WaitForSingleObject(sobj, _FS_TIMEOUT) == WAIT_OBJECT_0);	/* Win32 */
-
-//	ret = (int)(wai_sem(sobj) == E_OK);			/* uITRON */
-
-//	OSMutexPend(sobj, _FS_TIMEOUT, &err));		/* uC/OS-II */
-//	ret = (int)(err == OS_NO_ERR);
-
-//	ret = (int)(xSemaphoreTake(sobj, _FS_TIMEOUT) == pdTRUE);	/* FreeRTOS */
-
-	return ret;
-}
-
-
-
-/*------------------------------------------------------------------------*/
-/* Release Grant to Access the Volume                                     */
-/*------------------------------------------------------------------------*/
-/* This function is called on leaving file functions to unlock the volume.
-*/
-
-void ff_rel_grant (
-	_SYNC_t sobj	/* Sync object to be signaled */
-)
-{
-	ReleaseMutex(sobj);		/* Win32 */
-
-//	sig_sem(sobj);			/* uITRON */
-
-//	OSMutexPost(sobj);		/* uC/OS-II */
-
-//	xSemaphoreGive(sobj);	/* FreeRTOS */
-}
-
-#endif
-
-
-
-
-#if _USE_LFN == 3	/* LFN with a working buffer on the heap */
-/*------------------------------------------------------------------------*/
-/* Allocate a memory block                                                */
-/*------------------------------------------------------------------------*/
-/* If a NULL is returned, the file function fails with FR_NOT_ENOUGH_CORE.
-*/
-
-void* ff_memalloc (	/* Returns pointer to the allocated memory block */
-	UINT msize		/* Number of bytes to allocate */
-)
-{
-	return malloc(msize);	/* Allocate a new memory block with POSIX API */
-}
-
-
-/*------------------------------------------------------------------------*/
-/* Free a memory block                                                    */
-/*------------------------------------------------------------------------*/
-
-void ff_memfree (
-	void* mblock	/* Pointer to the memory block to free */
-)
-{
-	free(mblock);	/* Discard the memory block with POSIX API */
-}
-
-#endif

source/fatfs/sdmmc/common.h

@@ -1,15 +1,4 @@
 #pragma once
 
-#include <stdint.h>
-#include <stddef.h>
 #include <stdbool.h>
-
+#include "../../types.h"
-#define u8 uint8_t
-#define u16 uint16_t
-#define u32 uint32_t
-#define u64 uint64_t
-
-#define vu8 volatile u8
-#define vu16 volatile u16
-#define vu32 volatile u32
-#define vu64 volatile u64

source/fatfs/sdmmc/delay.h

@@ -6,4 +6,4 @@
 
 #include "common.h"
 
-void waitcycles(u32 us);
+void ioDelay(u32 us);

source/fatfs/sdmmc/delay.s

@@ -1,15 +1,17 @@
-.arm
+// Copyright 2014 Normmatt
-.global waitcycles
+// Licensed under GPLv2 or any later version
-.type   waitcycles STT_FUNC
+// Refer to the license.txt file included.
 
-@waitcycles ( u32 us )
+.arm
-waitcycles:
+.global ioDelay
-	PUSH    {R0-R2,LR}
+.type   ioDelay STT_FUNC
-	STR     R0, [SP,#4]
+
-	waitcycles_loop:
+@ioDelay ( u32 us )
-		LDR     R3, [SP,#4]
+ioDelay:
-		SUBS    R2, R3, #1
+	ldr r1, =0x18000000  @ VRAM
-		STR     R2, [SP,#4]
+1:
-		CMP     R3, #0
+	@ Loop doing uncached reads from VRAM to make loop timing more reliable
-		BNE     waitcycles_loop
+	ldr r2, [r1]
-	POP     {R0-R2,PC}
+	subs r0, #1
+	bgt 1b
+	bx lr

source/fatfs/sdmmc/sdmmc.c

@@ -2,8 +2,6 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include "common.h"
-
 #include "sdmmc.h"
 #include "delay.h"
 
@@ -286,7 +284,7 @@ static void InitSD()
 static int Nand_Init()
 {
     inittarget(&handleNAND);
-    waitcycles(0xF000);
+    ioDelay(0xF000);
 
     sdmmc_send_command(&handleNAND,0,0);
 
@@ -337,7 +335,7 @@ static int SD_Init()
 {
     inittarget(&handleSD);
 
-    waitcycles(1u << 18); //Card needs a little bit of time to be detected, it seems
+    ioDelay(1u << 18); //Card needs a little bit of time to be detected, it seems
     
     //If not inserted
     if (!(*((vu16*)0x1000601c) & TMIO_STAT0_SIGSTATE)) return -1;

source/fatfs/sdmmc/sdmmc.h

@@ -125,4 +125,3 @@ mmcdevice *getMMCDevice(int drive);
 
 u32 sdmmc_nand_readsectors(u32 sector_no, u32 numsectors, vu8 *out);
 u32 sdmmc_nand_writesectors(u32 sector_no, u32 numsectors, vu8 *in);
-

source/firm.c

@@ -13,26 +13,26 @@
 #include "draw.h"
 #include "loader.h"
 
-firmHeader *firmLocation = (firmHeader *)0x24000000;
+static firmHeader *const firmLocation = (firmHeader *)0x24000000;
-firmSectionHeader *section;
+static const firmSectionHeader *section;
-u32 firmSize = 0,
+static u32 firmSize = 0,
-    mode = 1,
+           mode = 1,
-    console = 1,
+           console = 1,
-    emuNAND = 0,
+           emuNAND = 0,
-    a9lhSetup = 0,
+           a9lhSetup = 0,
-    updatedSys = 0,
+           updatedSys = 0,
-    usePatchedFirm = 0;
+           usePatchedFirm = 0;
-u16 pressed;
+static u16 pressed;
-char *firmPathPatched = NULL;
+static const char *firmPathPatched = NULL;
 
 void setupCFW(void){
 
-    //Determine if booting with A9LH via PDN_SPI_CNT
+    //Determine if booting with A9LH
-    u8 a9lhBoot = (*(u8 *)0x101401C0 == 0x0) ? 1 : 0;
+    u32 a9lhBoot = (PDN_SPI_CNT == 0x0) ? 1 : 0;
-    //Retrieve the last booted FIRM via CFG_BOOTENV
+    //Retrieve the last booted FIRM
-    u8 previousFirm = *(u8 *)0x10010000;
+    u8 previousFirm = CFG_BOOTENV;
     u32 overrideConfig = 0;
-    const char lastConfigPath[] = "rei/lastbootcfg";
+    const char lastConfigPath[] = "aurei/lastbootcfg";
 
     //Detect the console being used
     if(PDN_MPCORE_CFG == 1) console = 0;
@@ -41,10 +41,10 @@ void setupCFW(void){
     pressed = HID_PAD;
 
     //Determine if A9LH is installed
-    if(a9lhBoot || fileExists("/rei/installeda9lh")){
+    if(a9lhBoot || fileExists("/aurei/installeda9lh")){
         a9lhSetup = 1;
         //Check flag for > 9.2 SysNAND
-        if(fileExists("/rei/updatedsysnand")) updatedSys = 1;
+        if(fileExists("/aurei/updatedsysnand")) updatedSys = 1;
     }
 
     //If booting with A9LH and it's a MCU reboot, try to force boot options
@@ -53,11 +53,11 @@ void setupCFW(void){
         fileRead(&tempConfig, lastConfigPath, 1);
 
         //Always force a sysNAND boot when quitting AGB_FIRM
-        if(previousFirm == 0x7) {
+        if(previousFirm == 0x7){
             if(!updatedSys) mode = tempConfig & 0x1;
             overrideConfig = 1;
         //Else, force the last used boot options unless A is pressed
-        } else if(!(pressed & BUTTON_A)) {
+        } else if(!(pressed & BUTTON_A)){
             mode = tempConfig & 0x1;
             emuNAND = (tempConfig >> 1) & 0x1;
             overrideConfig = 1;
@@ -69,6 +69,9 @@ void setupCFW(void){
         //If L and R are pressed, chainload an external payload
         if(a9lhBoot && (pressed & BUTTON_L1R1) == BUTTON_L1R1) loadPayload();
 
+        //Check if it's a no-screen-init A9LH boot
+        if(PDN_GPU_CNT != 0x1) loadSplash();
+
         /* If L is pressed, and on an updated SysNAND setup the SAFE MODE combo
            is not pressed, boot 9.0 FIRM */
         if((pressed & BUTTON_L1) && !(updatedSys && pressed == SAFEMODE)) mode = 0;
@@ -76,7 +79,11 @@ void setupCFW(void){
         /* If L or R aren't pressed on a 9.0/9.2 SysNAND, or the 9.0 FIRM is selected
            or R is pressed on a > 9.2 SysNAND, boot emuNAND */
         if((updatedSys && (!mode || ((pressed & BUTTON_R1) && pressed != SAFEMODE))) ||
-           (!updatedSys && mode && !(pressed & BUTTON_R1))) emuNAND = 1;
+           (!updatedSys && mode && !(pressed & BUTTON_R1))){
+            //If not 9.0 FIRM and B is pressed, attempt booting the second emuNAND
+            if(mode && (pressed & BUTTON_B)) emuNAND = 2;
+            else emuNAND = 1;
+        }
 
         //Write the current boot options on A9LH
         if(a9lhBoot){
@@ -85,13 +92,14 @@ void setupCFW(void){
         }
     }
 
-    if(mode) firmPathPatched = emuNAND ? "/rei/patched_firmware_emu.bin" :
+    if(mode) firmPathPatched = emuNAND ? (emuNAND == 1 ? "/aurei/patched_firmware_emu.bin" :
-                                         "/rei/patched_firmware_sys.bin";
+                                                        "/aurei/patched_firmware_em2.bin") :
+                                                        "/aurei/patched_firmware_sys.bin";
 
     //Skip decrypting and patching FIRM
-    if(fileExists("/rei/usepatchedfw")){
+    if(fileExists("/aurei/usepatchedfw")){
         //Only needed with this flag
-        if(!mode) firmPathPatched = "/rei/patched_firmware90.bin";
+        if(!mode) firmPathPatched = "/aurei/patched_firmware90.bin";
         if(fileExists(firmPathPatched)) usePatchedFirm = 1;
     }
 }
@@ -110,7 +118,7 @@ u32 loadFirm(void){
     //Load FIRM from SD
     else{
         const char *path = usePatchedFirm ? firmPathPatched :
-                                (mode ? "/rei/firmware.bin" : "/rei/firmware90.bin");
+                                (mode ? "/aurei/firmware.bin" : "/aurei/firmware90.bin");
         firmSize = fileSize(path);
         if(!firmSize) return 0;
         fileRead((u8 *)firmLocation, path, firmSize);
@@ -128,24 +136,21 @@ u32 loadFirm(void){
 }
 
 //Nand redirection
-u32 loadEmu(void){
+static u32 loadEmu(void){
 
-    u32 emuOffset = 0,
+    u32 emuOffset = 1,
-        emuHeader = 0,
+        emuHeader = 1,
-        emuRead = 0,
+        emuRead,
-        emuWrite = 0,
+        emuWrite,
-        sdmmcOffset = 0,
+        sdmmcOffset,
-        mpuOffset = 0,
+        mpuOffset,
-        emuCodeOffset = 0;
+        emuCodeOffset;
 
     //Read emunand code from SD
-    const char path[] = "/rei/emunand/emunand.bin";
+    const char path[] = "/aurei/emunand/emunand.bin";
     u32 size = fileSize(path);
     if(!size) return 0;
-    if(!console || !mode) nandRedir[5] = 0xA4;
+    getEmuCode(firmLocation, &emuCodeOffset, firmSize);
-    //Find offset for emuNAND code from the offset in nandRedir
-    emuCodeOffset = *(u32 *)(nandRedir + 4) - (u32)section[2].address +
-                    section[2].offset + (u32)firmLocation;
     fileRead((u8 *)emuCodeOffset, path, size);
 
     //Find and patch emunand related offsets
@@ -153,18 +158,19 @@ u32 loadEmu(void){
     u32 *pos_offset = (u32 *)memsearch((void *)emuCodeOffset, "NAND", size, 4);
     u32 *pos_header = (u32 *)memsearch((void *)emuCodeOffset, "NCSD", size, 4);
     getSDMMC(firmLocation, &sdmmcOffset, firmSize);
-    getEmunandSect(&emuOffset, &emuHeader);
+    getEmunandSect(&emuOffset, &emuHeader, emuNAND);
     getEmuRW(firmLocation, firmSize, &emuRead, &emuWrite);
     getMPU(firmLocation, &mpuOffset, firmSize);
     *pos_sdmmc = sdmmcOffset;
     *pos_offset = emuOffset;
     *pos_header = emuHeader;
 
-    //Patch emuNAND code in memory for O3DS and 9.0 N3DS
+    //No emuNAND detected
-    if(!console || !mode){
+    if(!*pos_header) return 0;
-        void *pos_instr = memsearch((void *)emuCodeOffset, "\xA6\x01\x08\x30", size, 4);
+
-        memcpy(pos_instr, emuInstr, sizeof(emuInstr));
+    //Calculate offset for the hooks
-    }
+    *(u32 *)(nandRedir + 4) = emuCodeOffset - (u32)firmLocation -
+                              section[2].offset + (u32)section[2].address;
 
     //Add emunand hooks
     memcpy((void *)emuRead, nandRedir, sizeof(nandRedir));
@@ -194,26 +200,24 @@ u32 patchFirm(void){
     }
 
     //Disable signature checks
-    u32 sigOffset = 0,
+    u32 sigOffset,
-        sigOffset2 = 0;
+        sigOffset2;
 
     getSignatures(firmLocation, firmSize, &sigOffset, &sigOffset2);
     memcpy((void *)sigOffset, sigPat1, sizeof(sigPat1));
     memcpy((void *)sigOffset2, sigPat2, sizeof(sigPat2));
 
     //Patch ARM9 entrypoint on N3DS to skip arm9loader
-    if(console){
+    if(console)
-        u32 *arm9 = (u32 *)&firmLocation->arm9Entry;
+        firmLocation->arm9Entry = (u8 *)0x801B01C;
-        *arm9 = 0x801B01C;
-    }
 
     //Patch FIRM reboots, not on 9.0 FIRM as it breaks firmlaunchhax
     if(mode){
-        u32 rebootOffset = 0,
+        u32 rebootOffset,
-            fOpenOffset = 0;
+            fOpenOffset;
 
         //Read reboot code from SD
-        const char path[] = "/rei/reboot/reboot.bin";
+        const char path[] = "/aurei/reboot/reboot.bin";
         u32 size = fileSize(path);
         if(!size) return 0;
         getReboot(firmLocation, firmSize, &rebootOffset);
@@ -227,7 +231,8 @@ u32 patchFirm(void){
         //Patch path for emuNAND-patched FIRM
         if(emuNAND){
             void *pos_path = memsearch((void *)rebootOffset, L"sy", size, 4);
-            memcpy(pos_path, L"emu", 5);
+            const wchar_t *path = emuNAND == 1 ? L"emu" : L"em2";
+            memcpy(pos_path, path, 5);
         }
     }
 
@@ -248,7 +253,7 @@ void launchFirm(void){
     memcpy(section[2].address, (u8 *)firmLocation + section[2].offset, section[2].size);
 
     //Run ARM11 screen stuff
-    vu32 *arm11 = (vu32 *)0x1FFFFFF8;
+    vu32 *const arm11 = (u32 *)0x1FFFFFF8;
     *arm11 = (u32)shutdownLCD;
     while(*arm11);
 

source/firm.h

@@ -4,22 +4,41 @@
 *   Copyright (c) 2015 All Rights Reserved
 */
 
-#ifndef FIRM_INC
+#pragma once
-#define FIRM_INC
 
 #include "types.h"
 
-#define PDN_MPCORE_CFG     (*(u8*)0x10140FFC)
+#define PDN_MPCORE_CFG     (*(vu8 *)0x10140FFC)
-#define HID_PAD            ((~*(u16*)0x10146000) & 0xFFF)
+#define HID_PAD            ((~*(vu16 *)0x10146000) & 0xFFF)
+#define PDN_SPI_CNT        (*(vu8 *)0x101401C0)
+#define CFG_BOOTENV        (*(vu8 *)0x10010000)
+#define PDN_GPU_CNT        (*(vu8 *)0x10141200)
 #define BUTTON_R1          (1 << 8)
 #define BUTTON_L1          (1 << 9)
 #define BUTTON_L1R1        (BUTTON_R1 | BUTTON_L1)
 #define BUTTON_A           1
+#define BUTTON_B           (1 << 1)
 #define SAFEMODE           (BUTTON_L1R1 | BUTTON_A | (1 << 6))
 
+//FIRM Header layout
+typedef struct firmSectionHeader {
+    u32 offset;
+    u8 *address;
+    u32 size;
+    u32 procType;
+    u8 hash[0x20];
+} firmSectionHeader;
+
+typedef struct firmHeader {
+    u32 magic;
+    u32 reserved1;
+    u8 *arm11Entry;
+    u8 *arm9Entry;
+    u8 reserved2[0x30];
+    firmSectionHeader section[4];
+} firmHeader;
+
 void setupCFW(void);
 u32 loadFirm(void);
 u32 patchFirm(void);
 void launchFirm(void);
-
-#endif

source/fs.c

@@ -52,7 +52,7 @@ u32 fileSize(const char *path){
 
 u32 fileExists(const char *path){
     FIL fp;
-    u8 exists = 0;
+    u32 exists = 0;
 
     if(f_open(&fp, path, FA_READ) == FR_OK) exists = 1;
 

source/fs.h

@@ -2,8 +2,7 @@
 *   fs.h
 */
 
-#ifndef FS_INC
+#pragma once
-#define FS_INC
 
 #include "types.h"
 
@@ -12,5 +11,3 @@ u32 fileRead(u8 *dest, const char *path, u32 size);
 u32 fileWrite(const u8 *buffer, const char *path, u32 size);
 u32 fileSize(const char *path);
 u32 fileExists(const char *path);
-
-#endif

source/i2c.c

@@ -0,0 +1,98 @@
+#include "i2c.h"
+
+//-----------------------------------------------------------------------------
+
+static const struct { u8 bus_id, reg_addr; } dev_data[] = {
+    {0, 0x4A}, {0, 0x7A}, {0, 0x78},
+    {1, 0x4A}, {1, 0x78}, {1, 0x2C},
+    {1, 0x2E}, {1, 0x40}, {1, 0x44},
+    {2, 0xD6}, {2, 0xD0}, {2, 0xD2},
+    {2, 0xA4}, {2, 0x9A}, {2, 0xA0},
+};
+
+static inline u8 i2cGetDeviceBusId(u8 device_id) {
+    return dev_data[device_id].bus_id;
+}
+
+static inline u8 i2cGetDeviceRegAddr(u8 device_id) {
+    return dev_data[device_id].reg_addr;
+}
+
+//-----------------------------------------------------------------------------
+
+static vu8* reg_data_addrs[] = {
+    (vu8*)(I2C1_REG_OFF + I2C_REG_DATA),
+    (vu8*)(I2C2_REG_OFF + I2C_REG_DATA),
+    (vu8*)(I2C3_REG_OFF + I2C_REG_DATA),
+};
+
+static inline vu8* i2cGetDataReg(u8 bus_id) {
+    return reg_data_addrs[bus_id];
+}
+
+//-----------------------------------------------------------------------------
+
+static vu8* reg_cnt_addrs[] = {
+    (vu8*)(I2C1_REG_OFF + I2C_REG_CNT),
+    (vu8*)(I2C2_REG_OFF + I2C_REG_CNT),
+    (vu8*)(I2C3_REG_OFF + I2C_REG_CNT),
+};
+
+static inline vu8* i2cGetCntReg(u8 bus_id) {
+    return reg_cnt_addrs[bus_id];
+}
+
+//-----------------------------------------------------------------------------
+
+static inline void i2cWaitBusy(u8 bus_id) {
+    while (*i2cGetCntReg(bus_id) & 0x80);
+}
+
+static inline u32 i2cGetResult(u8 bus_id) {
+    i2cWaitBusy(bus_id);
+    return (*i2cGetCntReg(bus_id) >> 4) & 1;
+}
+
+static void i2cStop(u8 bus_id, u8 arg0) {
+    *i2cGetCntReg(bus_id) = (arg0 << 5) | 0xC0;
+    i2cWaitBusy(bus_id);
+    *i2cGetCntReg(bus_id) = 0xC5;
+}
+
+//-----------------------------------------------------------------------------
+
+static u32 i2cSelectDevice(u8 bus_id, u8 dev_reg) {
+    i2cWaitBusy(bus_id);
+    *i2cGetDataReg(bus_id) = dev_reg;
+    *i2cGetCntReg(bus_id) = 0xC2;
+    return i2cGetResult(bus_id);
+}
+
+static u32 i2cSelectRegister(u8 bus_id, u8 reg) {
+    i2cWaitBusy(bus_id);
+    *i2cGetDataReg(bus_id) = reg;
+    *i2cGetCntReg(bus_id) = 0xC0;
+    return i2cGetResult(bus_id);
+}
+
+//-----------------------------------------------------------------------------
+
+u32 i2cWriteRegister(u8 dev_id, u8 reg, u8 data) {
+    u8 bus_id = i2cGetDeviceBusId(dev_id);
+    u8 dev_addr = i2cGetDeviceRegAddr(dev_id);
+
+    for (int i = 0; i < 8; i++) {
+        if (i2cSelectDevice(bus_id, dev_addr) && i2cSelectRegister(bus_id, reg)) {
+            i2cWaitBusy(bus_id);
+            *i2cGetDataReg(bus_id) = data;
+            *i2cGetCntReg(bus_id) = 0xC1;
+            i2cStop(bus_id, 0);
+            if (i2cGetResult(bus_id))
+                return 1;
+        }
+        *i2cGetCntReg(bus_id) = 0xC5;
+        i2cWaitBusy(bus_id);
+    }
+
+    return 0;
+}

source/i2c.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "types.h"
+
+#define I2C1_REG_OFF 0x10161000
+#define I2C2_REG_OFF 0x10144000
+#define I2C3_REG_OFF 0x10148000
+
+#define I2C_REG_DATA  0
+#define I2C_REG_CNT   1
+#define I2C_REG_CNTEX 2
+#define I2C_REG_SCL   4
+
+#define I2C_DEV_MCU  3
+#define I2C_DEV_GYRO 10
+#define I2C_DEV_IR   13
+
+u32 i2cWriteRegister(u8 dev_id, u8 reg, u8 data);

source/loader.c

@@ -8,7 +8,7 @@
 #define PAYLOAD_ADDRESS	0x24F00000
 
 void loadPayload(void){
-    if(fileExists("rei/arm9payload.bin") &&
+    if(fileExists("aurei/payloads/default.bin") &&
-       fileRead((u8 *)PAYLOAD_ADDRESS, "rei/loader.bin", 0))
+       fileRead((u8 *)PAYLOAD_ADDRESS, "aurei/loader.bin", 0))
         ((void (*)())PAYLOAD_ADDRESS)();
 }

source/loader.h

@@ -2,11 +2,8 @@
 *   loader.h
 */
 
-#ifndef LOADER_INC
+#pragma once
-#define LOADER_INC
 
 #include "types.h"
 
 void loadPayload(void);
-
-#endif

source/main.c

@@ -8,16 +8,16 @@
 
 #include "fs.h"
 #include "firm.h"
-#include "draw.h"
+#include "i2c.h"
 
-void main(){
+void main(void){
     mountSD();
     setupCFW();
-}
-
-void startCFW(){
-    loadSplash();
     if(!loadFirm()) return;
     if(!patchFirm()) return;
     launchFirm();
 }
+
+void shutdown(void){
+    i2cWriteRegister(I2C_DEV_MCU, 0x20, 1);
+}

source/memory.c

@@ -19,6 +19,12 @@ void memset(void *dest, int filler, u32 size){
         destc[i] = (u8)filler;
 }
 
+void memset32(void *dest, u32 filler, u32 size){
+    u32 *dest32 = (u32 *)dest;
+    for (u32 i = 0; i < size / 4; i++)
+        dest32[i] = filler;
+}
+
 int memcmp(const void *buf1, const void *buf2, u32 size){
     const u8 *buf1c = (const u8 *)buf1;
     const u8 *buf2c = (const u8 *)buf2;

source/memory.h

@@ -4,14 +4,12 @@
 *   Copyright (c) 2015 All Rights Reserved
 */
 
-#ifndef MEMORY_INC
+#pragma once
-#define MEMORY_INC
 
 #include "types.h"
 
 void memcpy(void *dest, const void *src, u32 size);
 void memset(void *dest, int filler, u32 size);
+void memset32(void *dest, u32 filler, u32 size);
 int memcmp(const void *buf1, const void *buf2, u32 size);
 void *memsearch(void *start_pos, const void *search, u32 size, u32 size_search);
-
-#endif

source/patches.c

@@ -17,7 +17,8 @@ const u8 mpu[0x2C] = {    //MPU shit
     0x01, 0x01, 0x01, 0x01, 0x03, 0x06, 0x1C, 0x00, 0x00, 0x00, 0x02, 0x08
     };
 
-u8 nandRedir[0x08] = {0x00, 0x4C, 0xA0, 0x47, 0xC0, 0xA5, 0x01, 0x08};    //Branch to emunand function
+//Branch to emunand function. To be filled in
+u8 nandRedir[0x08] = {0x00, 0x4C, 0xA0, 0x47, 0x00, 0x00, 0x00, 0x00};
 
 const u8 sigPat1[2] = {0x00, 0x20};
 const u8 sigPat2[4] = {0x00, 0x20, 0x70, 0x47};

source/patches.h

@@ -4,8 +4,7 @@
 *   Copyright (c) 2015 All Rights Reserved
 */
 
-#ifndef PATCHES_INC
+#pragma once
-#define PATCHES_INC
 
 #include "types.h"
 
@@ -26,5 +25,3 @@ void getSignatures(void *pos, u32 size, u32 *off, u32 *off2);
 void getReboot(void *pos, u32 size, u32 *off);
 void getfOpen(void *pos, u32 size, u32 *off);
 void getFIRMWrite(void *pos, u32 size, u32 *off);
-
-#endif

source/start.s

@@ -10,7 +10,7 @@ _start:
     mcr p15, 0, r0, c5, c0, 2 @ write data access
     mcr p15, 0, r0, c5, c0, 3 @ write instruction access
 
-    @ Set MPU permissions
+    @ Set MPU permissions and cache settings
     ldr r0, =0xFFFF001D	@ ffff0000 32k
     ldr r1, =0x01FF801D	@ 01ff8000 32k
     ldr r2, =0x08000027	@ 08000000 1M
@@ -27,6 +27,10 @@ _start:
     mcr p15, 0, r5, c6, c5, 0
     mcr p15, 0, r6, c6, c6, 0
     mcr p15, 0, r7, c6, c7, 0
+    mov r0, #0x25
+    mcr p15, 0, r0, c2, c0, 0  @ data cacheable
+    mcr p15, 0, r0, c2, c0, 1  @ instruction cacheable
+    mcr p15, 0, r0, c3, c0, 0  @ data bufferable
 
     @ Enable caches
     mrc p15, 0, r0, c1, c0, 0  @ read control register
@@ -48,15 +52,7 @@ _start:
 
     bl main
 
-    @ Set cache settings
+    bl shutdown
-    mov r0, #0x25
-    mov r1, #0x25
-    mov r2, #0x25
-    mcr p15, 0, r0, c3, c0, 0	@ Write bufferable 0, 2, 5
-    mcr p15, 0, r1, c2, c0, 0	@ Data cacheable 0, 2, 5
-    mcr p15, 0, r2, c2, c0, 1	@ Inst cacheable 0, 2, 5
-
-    bl startCFW
 
 .die:
     b .die

source/types.h

@@ -4,8 +4,7 @@
 *   Copyright (c) 2015 All Rights Reserved
 */
 
-#ifndef TYPES_INC
+#pragma once
-#define TYPES_INC
 
 #include <stdint.h>
 #include <stdlib.h>
@@ -15,27 +14,7 @@ typedef uint8_t u8;
 typedef uint16_t u16;
 typedef uint32_t u32;
 typedef uint64_t u64;
-typedef volatile uint8_t vu8;
+typedef volatile u8 vu8;
-typedef volatile uint16_t vu16;
+typedef volatile u16 vu16;
-typedef volatile uint32_t vu32;
+typedef volatile u32 vu32;
-typedef volatile uint64_t vu64;
+typedef volatile u64 vu64;
-
-//FIRM Header layout
-typedef struct firmSectionHeader {
-    u32 offset;
-    u8 *address;
-    u32 size;
-    u32 procType;
-    u8 hash[0x20];
-} firmSectionHeader;
-
-typedef struct firmHeader {
-    u32 magic;
-    u32 reserved1;
-    u8 *arm11Entry;
-    u8 *arm9Entry;
-    u8 reserved2[0x30];
-    firmSectionHeader section[4];
-} firmHeader;
-
-#endif