LowLevel/Luma3DS-3GX
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Fix rebase

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This commit is contained in:
TuxSH 2019-03-15 18:51:18 +01:00
parent 244409fc98
commit b92406afe2
18 changed files with 3 additions and 796 deletions
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0
source/alignedseqmemcpy.h → arm9/source/alignedseqmemcpy.h
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0
source/alignedseqmemcpy.s → arm9/source/alignedseqmemcpy.s
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8
arm9/source/arm9_exception_handlers.c
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@ -74,18 +74,10 @@ void __attribute__((noreturn)) arm9ExceptionHandlerMain(u32 *registerDump, u32 t
//Copy header (actually optimized by the compiler) //Copy header (actually optimized by the compiler)
*(ExceptionDumpHeader *)FINAL_BUFFER = dumpHeader; *(ExceptionDumpHeader *)FINAL_BUFFER = dumpHeader;
<<<<<<< HEAD:exceptions/arm9/source/mainHandler.c
if(ARESCREENSINITIALIZED) I2C_writeReg(I2C_DEV_MCU, 0x22, 1 << 0); //Shutdown LCD if(ARESCREENSINITIALIZED) I2C_writeReg(I2C_DEV_MCU, 0x22, 1 << 0); //Shutdown LCD
((void (*)())0xFFFF0830)(); //Ensure that all memory transfers have completed and that the data cache has been flushed ((void (*)())0xFFFF0830)(); //Ensure that all memory transfers have completed and that the data cache has been flushed
I2C_writeReg(I2C_DEV_MCU, 0x20, 1 << 2); //Reboot I2C_writeReg(I2C_DEV_MCU, 0x20, 1 << 2); //Reboot
=======
if(ARESCREENSINITIALIZED) i2cWriteRegisterNoWait(I2C_DEV_MCU, 0x22, 1 << 0); //Shutdown LCD
((void (*)())0xFFFF0830)(); //Ensure that all memory transfers have completed and that the data cache has been flushed
i2cWriteRegisterNoWait(I2C_DEV_MCU, 0x20, 1 << 2); //Reboot
>>>>>>> Do the same for arm9 exceptions:source/arm9_exception_handlers.c
while(true); while(true);
} }

16
arm9/source/arm9_exception_handlers.h
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@ -29,20 +29,4 @@
extern const u32 arm9ExceptionHandlerAddressTable[6]; extern const u32 arm9ExceptionHandlerAddressTable[6];
extern u32 arm9ExceptionHandlerSvcBreakAddress; extern u32 arm9ExceptionHandlerSvcBreakAddress;
<<<<<<< HEAD:exceptions/arm9/source/types.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;
#define PDN_GPU_CNT (*(vu32 *)0x10141200)
#define ARESCREENSINITIALIZED ((PDN_GPU_CNT & 0xFF) != 1)
=======
u32 safecpy(void *dst, const void *src, u32 len); u32 safecpy(void *dst, const void *src, u32 len);
>>>>>>> Do the same for arm9 exceptions:source/arm9_exception_handlers.h

14
arm9/source/i2c.c
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@ -180,11 +180,7 @@ bool I2C_readRegBuf(I2cDevice devId, u8 regAddr, u8 *out, u32 size)
return true; return true;
} }
<<<<<<< HEAD
bool I2C_writeRegBuf(I2cDevice devId, u8 regAddr, const u8 *in, u32 size) bool I2C_writeRegBuf(I2cDevice devId, u8 regAddr, const u8 *in, u32 size)
=======
bool i2cWriteRegisterNoWait(u8 dev_id, u8 reg, u8 data)
>>>>>>> Do the same for arm9 exceptions
{ {
const u8 busId = i2cDevTable[devId].busId; const u8 busId = i2cDevTable[devId].busId;
I2cRegs *const regs = i2cGetBusRegsBase(busId); I2cRegs *const regs = i2cGetBusRegsBase(busId);
@ -204,7 +200,6 @@ bool i2cWriteRegisterNoWait(u8 dev_id, u8 reg, u8 data)
} }
} }
<<<<<<< HEAD
regs->REG_I2C_DATA = *in; regs->REG_I2C_DATA = *in;
regs->REG_I2C_CNT = I2C_ENABLE | I2C_IRQ_ENABLE | I2C_DIRE_WRITE | I2C_STOP; regs->REG_I2C_CNT = I2C_ENABLE | I2C_IRQ_ENABLE | I2C_DIRE_WRITE | I2C_STOP;
i2cWaitBusy(regs); i2cWaitBusy(regs);
@ -223,15 +218,6 @@ u8 I2C_readReg(I2cDevice devId, u8 regAddr)
if(!I2C_readRegBuf(devId, regAddr, &data, 1)) return 0xFF; if(!I2C_readRegBuf(devId, regAddr, &data, 1)) return 0xFF;
return data; return data;
} }
=======
return ret;
}
bool i2cWriteRegister(u8 dev_id, u8 reg, u8 data)
{
bool ret = i2cWriteRegisterNoWait(dev_id, reg, data);
wait(3ULL);
>>>>>>> Do the same for arm9 exceptions
bool I2C_writeReg(I2cDevice devId, u8 regAddr, u8 data) bool I2C_writeReg(I2cDevice devId, u8 regAddr, u8 data)
{ {

6
arm9/source/i2c.h
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@ -90,7 +90,6 @@ bool I2C_writeRegBuf(I2cDevice devId, u8 regAddr, const u8 *in, u32 size);
*/ */
u8 I2C_readReg(I2cDevice devId, u8 regAddr); u8 I2C_readReg(I2cDevice devId, u8 regAddr);
<<<<<<< HEAD
/** /**
* @brief Writes a byte to a I2C register. * @brief Writes a byte to a I2C register.
* *
@ -101,8 +100,3 @@ u8 I2C_readReg(I2cDevice devId, u8 regAddr);
* @return Returns true on success and false on failure. * @return Returns true on success and false on failure.
*/ */
bool I2C_writeReg(I2cDevice devId, u8 regAddr, u8 data); bool I2C_writeReg(I2cDevice devId, u8 regAddr, u8 data);
=======
u8 i2cReadRegister(u8 dev_id, u8 reg);
bool i2cWriteRegister(u8 dev_id, u8 reg, u8 data);
bool i2cWriteRegisterNoWait(u8 dev_id, u8 reg, u8 data);
>>>>>>> Do the same for arm9 exceptions

60
chainloader/source/cache.s
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@ -1,60 +0,0 @@
@ This file is part of Luma3DS
@ Copyright (C) 2016-2019 Aurora Wright, TuxSH
@
@ 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 3 of the License, or
@ (at your option) any later version.
@
@ This program is distributed in the hope that it will be useful,
@ but WITHOUT ANY WARRANTY; without even the implied warranty of
@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
@ GNU General Public License for more details.
@
@ You should have received a copy of the GNU General Public License
@ along with this program. If not, see <http://www.gnu.org/licenses/>.
@
@ Additional Terms 7.b and 7.c of GPLv3 apply to this file:
@ * Requiring preservation of specified reasonable legal notices or
@ author attributions in that material or in the Appropriate Legal
@ Notices displayed by works containing it.
@ * Prohibiting misrepresentation of the origin of that material,
@ or requiring that modified versions of such material be marked in
@ reasonable ways as different from the original version.
.text
.arm
.align 4
.global flushCaches
.type flushCaches, %function
flushCaches:
@ Clean and flush both the data cache and instruction caches
@ Adpated from http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0155a/ch03s03s05.html ,
@ and https://github.com/gemarcano/libctr9_io/blob/master/src/ctr_system_ARM.c#L39 as well
@ Note: ARM's example is actually for a 8KB DCache (which is what the 3DS has)
@ Implemented in bootROM at addresses 0xffff0830 (DCache) and 0xffff0ab4 (ICache)
mov r1, #0 @ segment counter
outer_loop:
mov r0, #0 @ line counter
inner_loop:
orr r2, r1, r0 @ generate segment and line address
mcr p15, 0, r2, c7, c14, 2 @ clean and flush the line
add r0, #0x20 @ increment to next line
cmp r0, #0x400
bne inner_loop
add r1, #0x40000000
cmp r1, #0
bne outer_loop
mcr p15, 0, r1, c7, c10, 4 @ drain write buffer
@ Flush instruction cache
mcr p15, 0, r1, c7, c5, 0
bx lr

42
chainloader/source/firm.c
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@ -1,42 +0,0 @@
/*
* This file is part of Luma3DS
* Copyright (C) 2016-2019 Aurora Wright, TuxSH
*
* 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 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
* * Requiring preservation of specified reasonable legal notices or
* author attributions in that material or in the Appropriate Legal
* Notices displayed by works containing it.
* * Prohibiting misrepresentation of the origin of that material,
* or requiring that modified versions of such material be marked in
* reasonable ways as different from the original version.
*/
#include "firm.h"
#include "memory.h"
#include "cache.h"
void disableMpuAndJumpToEntrypoints(int argc, char **argv, void *arm11Entry, void *arm9Entry);
void launchFirm(Firm *firm, int argc, char **argv)
{
//Copy FIRM sections to respective memory locations
for(u32 sectionNum = 0; sectionNum < 4; sectionNum++)
memcpy(firm->section[sectionNum].address, (u8 *)firm + firm->section[sectionNum].offset, firm->section[sectionNum].size);
disableMpuAndJumpToEntrypoints(argc, argv, firm->arm9Entry, firm->arm11Entry);
__builtin_unreachable();
}

50
chainloader/source/firm.h
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@ -1,50 +0,0 @@
/*
* This file is part of Luma3DS
* Copyright (C) 2016-2019 Aurora Wright, TuxSH
*
* 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 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
* * Requiring preservation of specified reasonable legal notices or
* author attributions in that material or in the Appropriate Legal
* Notices displayed by works containing it.
* * Prohibiting misrepresentation of the origin of that material,
* or requiring that modified versions of such material be marked in
* reasonable ways as different from the original version.
*/
#pragma once
#include "types.h"
typedef struct __attribute__((packed))
{
u32 offset;
u8 *address;
u32 size;
u32 procType;
u8 hash[0x20];
} FirmSection;
typedef struct __attribute__((packed))
{
char magic[4];
u32 reserved1;
u8 *arm11Entry;
u8 *arm9Entry;
u8 reserved2[0x30];
FirmSection section[4];
} Firm;
void launchFirm(Firm *firm, int argc, char **argv);

40
chainloader/source/memory.c
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@ -1,40 +0,0 @@
/*
* This file is part of Luma3DS
* Copyright (C) 2016-2019 Aurora Wright, TuxSH
*
* 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 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
* * Requiring preservation of specified reasonable legal notices or
* author attributions in that material or in the Appropriate Legal
* Notices displayed by works containing it.
* * Prohibiting misrepresentation of the origin of that material,
* or requiring that modified versions of such material be marked in
* reasonable ways as different from the original version.
*/
/*
* memcpy adapted from https://github.com/mid-kid/CakesForeveryWan/blob/557a8e8605ab3ee173af6497486e8f22c261d0e2/source/memfuncs.c
*/
#include "memory.h"
void memcpy(void *dest, const void *src, u32 size)
{
u8 *destc = (u8 *)dest;
const u8 *srcc = (const u8 *)src;
for(u32 i = 0; i < size; i++)
destc[i] = srcc[i];
}

35
chainloader/source/memory.h
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@ -1,35 +0,0 @@
/*
* This file is part of Luma3DS
* Copyright (C) 2016-2019 Aurora Wright, TuxSH
*
* 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 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
* * Requiring preservation of specified reasonable legal notices or
* author attributions in that material or in the Appropriate Legal
* Notices displayed by works containing it.
* * Prohibiting misrepresentation of the origin of that material,
* or requiring that modified versions of such material be marked in
* reasonable ways as different from the original version.
*/
/*
* memcpy adapted from https://github.com/mid-kid/CakesForeveryWan/blob/557a8e8605ab3ee173af6497486e8f22c261d0e2/source/memfuncs.c
*/
#pragma once
#include "types.h"
void memcpy(void *dest, const void *src, u32 size);

60
chainloader/source/start.s
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@ -1,60 +0,0 @@
@ This file is part of Luma3DS
@ Copyright (C) 2016-2019 Aurora Wright, TuxSH
@
@ 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 3 of the License, or
@ (at your option) any later version.
@
@ This program is distributed in the hope that it will be useful,
@ but WITHOUT ANY WARRANTY; without even the implied warranty of
@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
@ GNU General Public License for more details.
@
@ You should have received a copy of the GNU General Public License
@ along with this program. If not, see <http://www.gnu.org/licenses/>.
@
@ Additional Terms 7.b and 7.c of GPLv3 apply to this file:
@ * Requiring preservation of specified reasonable legal notices or
@ author attributions in that material or in the Appropriate Legal
@ Notices displayed by works containing it.
@ * Prohibiting misrepresentation of the origin of that material,
@ or requiring that modified versions of such material be marked in
@ reasonable ways as different from the original version.
.arm
.section .text.start
.align 4
.global _start
_start:
ldr sp, =__stack_top__
b main
.text
.balign 4
.global disableMpuAndJumpToEntrypoints
.type disableMpuAndJumpToEntrypoints, %function
disableMpuAndJumpToEntrypoints:
mov r4, r0
mov r5, r1
mov r6, r2
mov r7, r3
bl flushCaches
@ Disable caches / MPU
mrc p15, 0, r0, c1, c0, 0 @ read control register
bic r0, #(1<<12) @ - instruction cache disable
bic r0, #(1<<2) @ - data cache disable
bic r0, #(1<<0) @ - MPU disable
mcr p15, 0, r0, c1, c0, 0 @ write control register
@ Set the ARM11 entrypoint
mov r0, #0x20000000
str r7, [r0, #-4]
@ Jump to the ARM9 entrypoint
mov r0, r4
mov r1, r5
ldr r2, =0x3BEEF
bx r6

45
chainloader/source/types.h
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@ -1,45 +0,0 @@
/*
* This file is part of Luma3DS
* Copyright (C) 2016-2019 Aurora Wright, TuxSH
*
* 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 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
* * Requiring preservation of specified reasonable legal notices or
* author attributions in that material or in the Appropriate Legal
* Notices displayed by works containing it.
* * Prohibiting misrepresentation of the origin of that material,
* or requiring that modified versions of such material be marked in
* reasonable ways as different from the original version.
*/
#pragma once
#include <stdint.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;
struct fb {
u8 *top_left;
u8 *top_right;
u8 *bottom;
};

51
exceptions/arm9/source/handlers.h
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@ -1,51 +0,0 @@
/*
* This file is part of Luma3DS
* Copyright (C) 2016-2019 Aurora Wright, TuxSH
*
* 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 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
* * Requiring preservation of specified reasonable legal notices or
* author attributions in that material or in the Appropriate Legal
* Notices displayed by works containing it.
* * Prohibiting misrepresentation of the origin of that material,
* or requiring that modified versions of such material be marked in
* reasonable ways as different from the original version.
*/
#pragma once
#include "types.h"
typedef struct __attribute__((packed))
{
u32 magic[2];
u16 versionMinor, versionMajor;
u16 processor, core;
u32 type;
u32 totalSize;
u32 registerDumpSize;
u32 codeDumpSize;
u32 stackDumpSize;
u32 additionalDataSize;
} ExceptionDumpHeader;
void FIQHandler(void);
void undefinedInstructionHandler(void);
void dataAbortHandler(void);
void prefetchAbortHandler(void);
u32 safecpy(void *dst, const void *src, u32 len);

225
exceptions/arm9/source/i2c.c
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@ -1,225 +0,0 @@
/*
* This file is part of fastboot 3DS
* Copyright (C) 2017 derrek, profi200
*
* 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 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdbool.h>
#include "types.h"
#include "i2c.h"
#define I2C1_REGS_BASE (0x10161000)
#define I2C2_REGS_BASE (0x10144000)
#define I2C3_REGS_BASE (0x10148000)
typedef struct
{
vu8 REG_I2C_DATA;
vu8 REG_I2C_CNT;
vu16 REG_I2C_CNTEX;
vu16 REG_I2C_SCL;
} I2cRegs;
static const struct
{
u8 busId;
u8 devAddr;
} i2cDevTable[] =
{
{0, 0x4A},
{0, 0x7A},
{0, 0x78},
{1, 0x4A},
{1, 0x78},
{1, 0x2C},
{1, 0x2E},
{1, 0x40},
{1, 0x44},
{2, 0xA6}, // TODO: Find out if 0xA6 or 0xD6 is correct
{2, 0xD0},
{2, 0xD2},
{2, 0xA4},
{2, 0x9A},
{2, 0xA0},
{1, 0xEE},
{0, 0x40},
{2, 0x54}
};
static void i2cWaitBusy(I2cRegs *const regs)
{
while(regs->REG_I2C_CNT & I2C_ENABLE);
}
static I2cRegs* i2cGetBusRegsBase(u8 busId)
{
I2cRegs *base;
switch(busId)
{
case 0:
base = (I2cRegs*)I2C1_REGS_BASE;
break;
case 1:
base = (I2cRegs*)I2C2_REGS_BASE;
break;
case 2:
base = (I2cRegs*)I2C3_REGS_BASE;
break;
default:
base = NULL;
}
return base;
}
void I2C_init(void)
{
I2cRegs *regs = i2cGetBusRegsBase(0); // Bus 1
i2cWaitBusy(regs);
regs->REG_I2C_CNTEX = 2; // ?
regs->REG_I2C_SCL = 1280; // ?
regs = i2cGetBusRegsBase(1); // Bus 2
i2cWaitBusy(regs);
regs->REG_I2C_CNTEX = 2; // ?
regs->REG_I2C_SCL = 1280; // ?
regs = i2cGetBusRegsBase(2); // Bus 3
i2cWaitBusy(regs);
regs->REG_I2C_CNTEX = 2; // ?
regs->REG_I2C_SCL = 1280; // ?
}
static bool i2cStartTransfer(I2cDevice devId, u8 regAddr, bool read, I2cRegs *const regs)
{
const u8 devAddr = i2cDevTable[devId].devAddr;
u32 i = 0;
for(; i < 8; i++)
{
i2cWaitBusy(regs);
// Select device and start.
regs->REG_I2C_DATA = devAddr;
regs->REG_I2C_CNT = I2C_ENABLE | I2C_IRQ_ENABLE | I2C_START;
i2cWaitBusy(regs);
if(!I2C_GET_ACK(regs->REG_I2C_CNT)) // If ack flag is 0 it failed.
{
regs->REG_I2C_CNT = I2C_ENABLE | I2C_IRQ_ENABLE | I2C_ERROR | I2C_STOP;
continue;
}
// Select register and change direction to write.
regs->REG_I2C_DATA = regAddr;
regs->REG_I2C_CNT = I2C_ENABLE | I2C_IRQ_ENABLE | I2C_DIRE_WRITE;
i2cWaitBusy(regs);
if(!I2C_GET_ACK(regs->REG_I2C_CNT)) // If ack flag is 0 it failed.
{
regs->REG_I2C_CNT = I2C_ENABLE | I2C_IRQ_ENABLE | I2C_ERROR | I2C_STOP;
continue;
}
// Select device in read mode for read transfer.
if(read)
{
regs->REG_I2C_DATA = devAddr | 1u; // Set bit 0 for read.
regs->REG_I2C_CNT = I2C_ENABLE | I2C_IRQ_ENABLE | I2C_START;
i2cWaitBusy(regs);
if(!I2C_GET_ACK(regs->REG_I2C_CNT)) // If ack flag is 0 it failed.
{
regs->REG_I2C_CNT = I2C_ENABLE | I2C_IRQ_ENABLE | I2C_ERROR | I2C_STOP;
continue;
}
}
break;
}
if(i < 8) return true;
else return false;
}
bool I2C_readRegBuf(I2cDevice devId, u8 regAddr, u8 *out, u32 size)
{
const u8 busId = i2cDevTable[devId].busId;
I2cRegs *const regs = i2cGetBusRegsBase(busId);
if(!i2cStartTransfer(devId, regAddr, true, regs)) return false;
while(--size)
{
regs->REG_I2C_CNT = I2C_ENABLE | I2C_IRQ_ENABLE | I2C_DIRE_READ | I2C_ACK;
i2cWaitBusy(regs);
*out++ = regs->REG_I2C_DATA;
}
regs->REG_I2C_CNT = I2C_ENABLE | I2C_IRQ_ENABLE | I2C_DIRE_READ | I2C_STOP;
i2cWaitBusy(regs);
*out = regs->REG_I2C_DATA; // Last byte
return true;
}
bool I2C_writeRegBuf(I2cDevice devId, u8 regAddr, const u8 *in, u32 size)
{
const u8 busId = i2cDevTable[devId].busId;
I2cRegs *const regs = i2cGetBusRegsBase(busId);
if(!i2cStartTransfer(devId, regAddr, false, regs)) return false;
while(--size)
{
regs->REG_I2C_DATA = *in++;
regs->REG_I2C_CNT = I2C_ENABLE | I2C_IRQ_ENABLE | I2C_DIRE_WRITE;
i2cWaitBusy(regs);
if(!I2C_GET_ACK(regs->REG_I2C_CNT)) // If ack flag is 0 it failed.
{
regs->REG_I2C_CNT = I2C_ENABLE | I2C_IRQ_ENABLE | I2C_ERROR | I2C_STOP;
return false;
}
}
regs->REG_I2C_DATA = *in;
regs->REG_I2C_CNT = I2C_ENABLE | I2C_IRQ_ENABLE | I2C_DIRE_WRITE | I2C_STOP;
i2cWaitBusy(regs);
if(!I2C_GET_ACK(regs->REG_I2C_CNT)) // If ack flag is 0 it failed.
{
regs->REG_I2C_CNT = I2C_ENABLE | I2C_IRQ_ENABLE | I2C_ERROR | I2C_STOP;
return false;
}
return true;
}
u8 I2C_readReg(I2cDevice devId, u8 regAddr)
{
u8 data;
if(!I2C_readRegBuf(devId, regAddr, &data, 1)) return 0xFF;
return data;
}
bool I2C_writeReg(I2cDevice devId, u8 regAddr, u8 data)
{
return I2C_writeRegBuf(devId, regAddr, &data, 1);
}

102
exceptions/arm9/source/i2c.h
View File

@ -1,102 +0,0 @@
#pragma once
/*
* This file is part of fastboot 3DS
* Copyright (C) 2017 derrek, profi200
*
* 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 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdbool.h>
#include "types.h"
#define I2C_STOP (1u)
#define I2C_START (1u<<1)
#define I2C_ERROR (1u<<2)
#define I2C_ACK (1u<<4)
#define I2C_DIRE_WRITE (0u)
#define I2C_DIRE_READ (1u<<5)
#define I2C_IRQ_ENABLE (1u<<6)
#define I2C_ENABLE (1u<<7)
#define I2C_GET_ACK(reg) ((bool)((reg)>>4 & 1u))
typedef enum
{
I2C_DEV_POWER = 0, // Unconfirmed
I2C_DEV_CAMERA = 1, // Unconfirmed
I2C_DEV_CAMERA2 = 2, // Unconfirmed
I2C_DEV_MCU = 3,
I2C_DEV_GYRO = 10,
I2C_DEV_DEBUG_PAD = 12,
I2C_DEV_IR = 13,
I2C_DEV_EEPROM = 14, // Unconfirmed
I2C_DEV_NFC = 15,
I2C_DEV_QTM = 16,
I2C_DEV_N3DS_HID = 17
} I2cDevice;
/**
* @brief Initializes the I2C buses. Call this only once.
*/
void I2C_init(void);
/**
* @brief Reads data from a I2C register to a buffer.
*
* @param[in] devId The device ID. Use the enum above.
* @param[in] regAddr The register address.
* @param out The output buffer pointer.
* @param[in] size The read size.
*
* @return Returns true on success and false on failure.
*/
bool I2C_readRegBuf(I2cDevice devId, u8 regAddr, u8 *out, u32 size);
/**
* @brief Writes a buffer to a I2C register.
*
* @param[in] devId The device ID. Use the enum above.
* @param[in] regAddr The register address.
* @param[in] in The input buffer pointer.
* @param[in] size The write size.
*
* @return Returns true on success and false on failure.
*/
bool I2C_writeRegBuf(I2cDevice devId, u8 regAddr, const u8 *in, u32 size);
/**
* @brief Reads a byte from a I2C register.
*
* @param[in] devId The device ID. Use the enum above.
* @param[in] regAddr The register address.
*
* @return Returns the value read on success otherwise 0xFF.
*/
u8 I2C_readReg(I2cDevice devId, u8 regAddr);
/**
* @brief Writes a byte to a I2C register.
*
* @param[in] devId The device ID. Use the enum above.
* @param[in] regAddr The register address.
* @param[in] data The data to write.
*
* @return Returns true on success and false on failure.
*/
bool I2C_writeReg(I2cDevice devId, u8 regAddr, u8 data);

39
exceptions/arm9/source/start.s
View File

@ -1,39 +0,0 @@
@ This file is part of Luma3DS
@ Copyright (C) 2016-2019 Aurora Wright, TuxSH
@
@ 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 3 of the License, or
@ (at your option) any later version.
@
@ This program is distributed in the hope that it will be useful,
@ but WITHOUT ANY WARRANTY; without even the implied warranty of
@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
@ GNU General Public License for more details.
@
@ You should have received a copy of the GNU General Public License
@ along with this program. If not, see <http://www.gnu.org/licenses/>.
@
@ Additional Terms 7.b and 7.c of GPLv3 apply to this file:
@ * Requiring preservation of specified reasonable legal notices or
@ author attributions in that material or in the Appropriate Legal
@ Notices displayed by works containing it.
@ * Prohibiting misrepresentation of the origin of that material,
@ or requiring that modified versions of such material be marked in
@ reasonable ways as different from the original version.
.section .text.start
.align 4
.global _start
_start:
add pc, r0, #(handlers - .) @ Dummy instruction
.global BreakPtr
BreakPtr: .word 0
.global handlers
handlers:
.word FIQHandler
.word undefinedInstructionHandler
.word prefetchAbortHandler
.word dataAbortHandler

6
sysmodules/rosalina/Makefile
View File

@ -18,9 +18,9 @@ include $(DEVKITARM)/3ds_rules
#--------------------------------------------------------------------------------- #---------------------------------------------------------------------------------
TARGET := $(notdir $(CURDIR)) TARGET := $(notdir $(CURDIR))
BUILD := build BUILD := build
SOURCES := source source/gdb source/menus SOURCES := source source/gdb source/menus source/redshift
DATA := source/gdb/xml DATA := source/gdb/xml
INCLUDES := include include/gdb include/menus INCLUDES := include include/gdb include/menus include/redshift
#--------------------------------------------------------------------------------- #---------------------------------------------------------------------------------
# options for code generation # options for code generation
@ -39,7 +39,7 @@ CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11
ASFLAGS := -g $(ARCH) ASFLAGS := -g $(ARCH)
LDFLAGS = -specs=3dsx.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map),--section-start,.text=0x14000000 LDFLAGS = -specs=3dsx.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map),--section-start,.text=0x14000000
LIBS := -lctru LIBS := -lctru -lm
#--------------------------------------------------------------------------------- #---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing # list of directories containing libraries, this must be the top level containing