wiiu-nanddumper-payload/ios_kernel/source/ios_bsp_patches.c
dimok789 b65b6c86cc - fixed bug with re-initialization of EEPROM and OTP dump on SD card
- added new feature which allows you to disable os full relaunch (only possible in combination with sysNAND, not redNAND)
- added new option which allows to return to HBL after executing the patches and not launch to System Menu (only in combination with disabled OS full relaunch)
- some clean ups

NOTE to the new feature:
The new feature to disable full OS reload behaves similar to the simple signature patcher except that it setups execution memory region from kernel for wupserver and iosuhax dev node code and starts those. So it's a fast simple signature patcher with the addition of wupserver and iosuhax dev node. Another addition to the simple sign patcher is that the patches reload themself when exiting settings. Launch image is disabled for this method though.
2016-12-14 14:14:12 +01:00

80 lines
2.7 KiB
C

/***************************************************************************
* Copyright (C) 2016
* by Dimok
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any
* damages arising from the use of this software.
*
* Permission is granted to anyone to use this software for any
* purpose, including commercial applications, and to alter it and
* redistribute it freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you
* must not claim that you wrote the original software. If you use
* this software in a product, an acknowledgment in the product
* documentation would be appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and
* must not be misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
***************************************************************************/
#include "types.h"
#include "elf_patcher.h"
#include "ios_bsp_patches.h"
#include "../../ios_bsp/ios_bsp_syms.h"
#include "fsa.h"
#include "utils.h"
#define BSP_PHYS_DIFF (-0xE6000000 + 0x13CC0000)
extern const patch_table_t fs_patches_table[];
extern const patch_table_t fs_patches_table_end[];
u32 bsp_get_phys_code_base(void)
{
return _text_start + BSP_PHYS_DIFF;
}
int bsp_init_seeprom_buffer(u32 baseSector, int dumpFound)
{
void *tmpBuffer = (void*)0x00140000;
if(dumpFound)
{
int res = FSA_SDReadRawSectors(tmpBuffer, baseSector, 1);
if(res < 0)
return res;
}
else
{
//! just clear out the seeprom and it will be re-initialized on BSP module
//! TODO: maybe read in the seeprom here from SPI or BSP module
kernel_memset(tmpBuffer, 0, 0x200);
}
int level = disable_interrupts();
unsigned int control_register = disable_mmu();
kernel_memcpy((void*)(_seeprom_buffer_start - 0xE6047000 + 0x13D07000), tmpBuffer, 0x200);
restore_mmu(control_register);
enable_interrupts(level);
return 0;
}
void bsp_run_patches(u32 ios_elf_start)
{
section_write(ios_elf_start, _text_start, (void*)bsp_get_phys_code_base(), _text_end - _text_start);
section_write_bss(ios_elf_start, _bss_start, _bss_end - _bss_start);
section_write(ios_elf_start, _seeprom_buffer_start, (void*)(_seeprom_buffer_start - 0xE6047000 + 0x13D07000), 0x200);
section_write_word(ios_elf_start, 0xE600D08C, ARM_B(0xE600D08C, EEPROM_SPI_ReadWord));
section_write_word(ios_elf_start, 0xE600D010, ARM_B(0xE600D010, EEPROM_SPI_WriteWord));
section_write_word(ios_elf_start, 0xE600CF5C, ARM_B(0xE600CF5C, EEPROM_WriteControl));
}