Atmosphere/stratosphere/boot/source/boot_main.cpp

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#include <cstdlib>
#include <cstdint>
#include <cstring>
#include <malloc.h>
#include <switch.h>
#include <stratosphere.hpp>
#define PMC_BASE 0x7000E400
extern "C" {
extern u32 __start__;
u32 __nx_applet_type = AppletType_None;
#define INNER_HEAP_SIZE 0x200000
size_t nx_inner_heap_size = INNER_HEAP_SIZE;
char nx_inner_heap[INNER_HEAP_SIZE];
void __libnx_initheap(void);
void __appInit(void);
void __appExit(void);
}
void __libnx_initheap(void) {
void* addr = nx_inner_heap;
size_t size = nx_inner_heap_size;
/* Newlib */
extern char* fake_heap_start;
extern char* fake_heap_end;
fake_heap_start = (char*)addr;
fake_heap_end = (char*)addr + size;
}
void __appInit(void) {
Result rc;
/* Initialize services we need (TODO: SPL, NCM) */
rc = smInitialize();
if (R_FAILED(rc))
fatalSimple(MAKERESULT(Module_Libnx, LibnxError_InitFail_SM));
rc = fsInitialize();
if (R_FAILED(rc))
fatalSimple(MAKERESULT(Module_Libnx, LibnxError_InitFail_FS));
rc = pmshellInitialize();
if (R_FAILED(rc))
fatalSimple(0xCAFE << 4 | 1);
fsdevInit();
}
void __appExit(void) {
/* Cleanup services. */
fsdevExit();
pmshellExit();
fsExit();
smExit();
}
int main(int argc, char **argv)
{
consoleDebugInit(debugDevice_SVC);
Result rc;
/* Change GPIO voltage to 1.8v */
if (kernelAbove200()) {
/* TODO: svcReadWriteRegister */
} else {
u64* pmc_base_vaddr = NULL;
/* Map the PMC registers directly */
rc = svcQueryIoMapping(pmc_base_vaddr, PMC_BASE, 0x3000);
if (R_FAILED(rc)) {
return rc;
}
/* IO mapping failed */
if (!pmc_base_vaddr)
fatalSimple(MAKERESULT(Module_Libnx, LibnxError_IoError));
/* Update PMC_PWR_DET_ENABLE and PMC_PWR_DET_VAL */
*((u32 *)pmc_base_vaddr + 0x48) |= 0x00A42000;
*((u32 *)pmc_base_vaddr + 0xE4) &= 0xFF5BDFFF;
}
/* Wait for changes to take effect */
svcSleepThread(100000);
/* TODO: Hardware setup, NAND repair, NotifyBootFinished */
rc = 0;
return rc;
}