92 lines
2.9 KiB
C
92 lines
2.9 KiB
C
/*
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* This file is part of Luma3DS
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* Copyright (C) 2016 Aurora Wright, TuxSH
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Additional Terms 7.b of GPLv3 applies to this file: Requiring preservation of specified
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* reasonable legal notices or author attributions in that material or in the Appropriate Legal
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* Notices displayed by works containing it.
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*/
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#include "memory.h"
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#include "cache.h"
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#include "i2c.h"
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#include "types.h"
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#include "fatfs/ff.h"
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#include "../../build/bundled.h"
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static FATFS fs;
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void main(void)
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{
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if(f_mount(&fs, "0:", 0) == FR_OK)
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{
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FIL pathFile,
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payload;
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bool foundPayload = false;
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if(f_open(&pathFile, "luma/path.txt", FA_READ) == FR_OK)
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{
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u32 pathSize = f_size(&pathFile);
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if(pathSize > 5 && pathSize < 58)
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{
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char path[pathSize + 1];
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unsigned int read;
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f_read(&pathFile, path, pathSize, &read);
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if(path[pathSize - 1] == 0xA) pathSize--;
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if(path[pathSize - 1] == 0xD) pathSize--;
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if(pathSize > 5 && pathSize < 56 && path[0] == '/' && memcmp(&path[pathSize - 4], ".bin", 4) == 0)
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{
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path[pathSize] = 0;
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foundPayload = f_open(&payload, path, FA_READ) == FR_OK;
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}
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}
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f_close(&pathFile);
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}
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if(!foundPayload) foundPayload = f_open(&payload, "arm9loaderhax.bin", FA_READ) == FR_OK;
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if(foundPayload)
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{
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u32 *loaderAddress = (u32 *)0x24FFFF00;
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void *payloadAddress = (void *)0x24F00000;
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u32 payloadSize = f_size(&payload);
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memcpy(loaderAddress, loader_bin, loader_bin_size);
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loaderAddress[1] = payloadSize;
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unsigned int read;
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f_read(&payload, payloadAddress, payloadSize, &read);
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f_close(&payload);
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if((u32)read == payloadSize)
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{
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flushDCacheRange(loaderAddress, loader_bin_size);
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flushICacheRange(loaderAddress, loader_bin_size);
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((void (*)())loaderAddress)();
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}
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}
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}
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//Ensure that all memory transfers have completed and that the data cache has been flushed
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flushEntireDCache();
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i2cWriteRegister(I2C_DEV_MCU, 0x20, 1 << 0);
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while(true);
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} |