mirror of
https://github.com/brain-hackers/brainlilo
synced 2024-11-01 07:48:00 +09:00
modified: BrainLILODrv.cpp
This commit is contained in:
parent
5efeb09b0f
commit
8a8fe81433
@ -68,7 +68,8 @@ static FileSystemPowerFunctionProc FileSystemPowerFunction;
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typedef LPVOID (*AllocPhysMemProc)(DWORD,DWORD,DWORD,DWORD,PULONG);
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typedef void (*NKForceCleanBootProc)(BOOL);
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DWORD wReadSize;
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unsigned long bootloaderphysaddr;
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static void disableInterrupts(){
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asm volatile("mrs r0, cpsr\n"
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@ -111,7 +112,7 @@ static void EDNA2_physicalInvoker(){
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static void EDNA2_installPhysicalInvoker(){
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void *ptr=(void *)0xa8000000;
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wchar_t buf[256];
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swprintf(buf, L"ResetKit: copying to 0x%08x from 0x%08x\n",
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swprintf(buf, L"BrainLILO: copying PhysicalInvoker to 0x%08x from 0x%08x\n",
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(int)(ptr), (int)(&EDNA2_physicalInvoker));
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OutputDebugString(buf);
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memcpy(ptr, (const void *)&EDNA2_physicalInvoker, 64*4);
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@ -120,14 +121,16 @@ static void EDNA2_installPhysicalInvoker(){
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__attribute__((noreturn))
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static void EDNA2_runPhysicalInvoker(unsigned long bootloaderphysaddr,DWORD size){
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static void EDNA2_runPhysicalInvoker(){
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// r0=info
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asm volatile("msr cpsr_c, #211\n" // to supervisor mode
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"mrc p15,0,r0,c1,c0,0\n" // read ctrl regs
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"bic r0, r0, #8192\n" // reset vector to lower
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"bic r0, r0, #5\n" // disable MMU/DCache
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"mcr p15,0,r0,c1,c0,0\n" // write ctrl regs
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"ldr r0, =0x0000\n"
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);
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for(DWORD i=0;i<wReadSize;i++)*((char*)(0x40100000+i))=*((char*)bootloaderphysaddr+i);
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asm volatile("ldr r0, =0x0000\n"
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"ldr r1, =0x0000\n"
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"ldr r2, =0x0000\n"
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"ldr r3, =0x0000\n"
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@ -135,15 +138,10 @@ static void EDNA2_runPhysicalInvoker(unsigned long bootloaderphysaddr,DWORD size
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"ldr r5, =0x0000\n"
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"ldr r6, =0x0000\n"
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"ldr r7, =0x0000\n"
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"ldr r8, =0x40002000\n"
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"ldr r8, =0x40100000\n"
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"ldr r9, =0x0000\n"
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"mrc p15,0,r10,c1,c0,0\n" // read ctrl regs
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"bic r10, r10, #5\n" // disable MMU/DCache
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"mcr p15,0,r10,c1,c0,0\n" // write ctrl regs
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);
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for(unsigned int i=0;i<size;i++)*((char *)(0x40002000+i))=*((char *)(bootloaderphysaddr+i));
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asm volatile("swi #0\n" // jump!
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"swi #0\n" // jump!
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);
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// never reach here
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@ -151,56 +149,59 @@ static void EDNA2_runPhysicalInvoker(unsigned long bootloaderphysaddr,DWORD size
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}
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__attribute__((noreturn))
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static DWORD EDNA2_callKernelEntryPoint(unsigned long bootloaderphysaddr,DWORD size){
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static DWORD EDNA2_callKernelEntryPoint(){
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OutputDebugString(L"BrainLILO: disabling interrupts");
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disableInterrupts();
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OutputDebugString(L"BrainLILO: injecting code to internal ram");
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EDNA2_installPhysicalInvoker();
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OutputDebugString(L"BrainLILO: invoking");
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EDNA2_runPhysicalInvoker(bootloaderphysaddr,size);
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EDNA2_runPhysicalInvoker();
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}
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static bool doLinux(){
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char *bootloaderdata;
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TCHAR bootloaderFileName[128]=TEXT("\\Storage Card\\loader\\u-boot.bin");
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HANDLE hFile;
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DWORD wReadSize;
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unsigned long bootloaderphysaddr;
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PULONG bootloaderptr;
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char *bootloaderptr;
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wchar_t buf[256];
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HINSTANCE dll;
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AllocPhysMemProc AllocPhysMem;
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dll=LoadLibrary(TEXT("COREDLL.DLL"));
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if (dll == NULL) {
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OutputDebugString(L"Cant load DLL");
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OutputDebugString(L"BrainLILO: Cant load COREDLL.DLL");
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return false;
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}
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AllocPhysMem=(AllocPhysMemProc)GetProcAddress(dll,TEXT("AllocPhysMem"));
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if (AllocPhysMem == NULL) {
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OutputDebugString(L"Cant load AllocPhysMem function");
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OutputDebugString(L"BrainLILO: Cant load AllocPhysMem function");
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return false;
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}
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OutputDebugString(L"BrainLILO: loading bootloader.");
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OutputDebugString(L"BrainLILO: Opening Bootloader file...");
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hFile = CreateFile(bootloaderFileName , GENERIC_READ , 0 , NULL ,OPEN_EXISTING , FILE_ATTRIBUTE_NORMAL , NULL);
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if (hFile == INVALID_HANDLE_VALUE) {
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OutputDebugString(L"Cant load bootloader");
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OutputDebugString(L"Cant open bootloader");
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return false;
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}
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bootloaderdata = (char *)malloc(GetFileSize(hFile , NULL));
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ReadFile(hFile , bootloaderdata , GetFileSize(hFile , NULL) , &wReadSize , NULL);
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swprintf(buf, L"BrainLILO: Bootloader file handle 0x%08x\n",(int)(hFile));
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OutputDebugString(buf);
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bootloaderptr=(char*)AllocPhysMem(GetFileSize(hFile , NULL),PAGE_EXECUTE_READWRITE,0,0,&bootloaderphysaddr);
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swprintf(buf, L"BrainLILO: Allocated preload memory Virtual:%p Physical:%p\n",bootloaderptr,bootloaderphysaddr);
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OutputDebugString(buf);
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OutputDebugString(L"BrainLILO: Copying bootloader to allocated virtual memory...");
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ReadFile(hFile , bootloaderptr , GetFileSize(hFile , NULL) , &wReadSize , NULL);
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OutputDebugString(L"BrainLILO: Bootloader copied! Closing file handle...");
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CloseHandle(hFile);
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bootloaderptr=(PULONG)AllocPhysMem(wReadSize,PAGE_EXECUTE_READWRITE,0,0,&bootloaderphysaddr);
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wchar_t buf[256];
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swprintf(buf, L"BrainLILO: copying bootloader to 0x%08x from 0x%08x\n",(int)(bootloaderptr), (int)(bootloaderdata));
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OutputDebugString(buf);
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memcpy(bootloaderptr,bootloaderdata,wReadSize);
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OutputDebugString(L"BrainLILO: bootloader copied");
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free(bootloaderdata);
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FreeLibrary(dll);
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Sleep(100);
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EDNA2_callKernelEntryPoint(bootloaderphysaddr,wReadSize);
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OutputDebugString(L"BrainLILO: Notifying power off to filesystems...");
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if(FileSystemPowerFunction) FileSystemPowerFunction(FSNOTIFY_POWER_OFF);
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OutputDebugString(L"BrainLILO: Starting bootloader call sequence...");
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EDNA2_callKernelEntryPoint();
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return true;
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}
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@ -210,8 +211,6 @@ extern "C" BRAINLILODRV_API BOOL LIN_IOControl(DWORD handle, DWORD dwIoControlCo
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switch(dwIoControlCode){
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case IOCTL_LIN_DO_LINUX:
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if(FileSystemPowerFunction)
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FileSystemPowerFunction(FSNOTIFY_POWER_OFF);
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if(!doLinux()){
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if(FileSystemPowerFunction)
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FileSystemPowerFunction(FSNOTIFY_POWER_ON);
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