static bool ndspFindAndLoadComponent(void)
{
Result rc;
Handle rsrc;
void* bin;
componentProgMask = 0xFF;
componentDataMask = 0xFF;
// Try loading the DSP component from the filesystem
do
{
static const char dsp_filename[] = "/3ds/dspfirm.cdc";
FS_Archive arch = { ARCHIVE_SDMC, { PATH_EMPTY, 1, (u8*)"" }, 0 };
FS_Path path = { PATH_ASCII, sizeof(dsp_filename), (u8*)dsp_filename };
rc = FSUSER_OpenFileDirectly(&rsrc, arch, path, FS_OPEN_READ, 0);
if (R_FAILED(rc)) break;
u64 size = 0;
rc = FSFILE_GetSize(rsrc, &size);
if (R_FAILED(rc)) { FSFILE_Close(rsrc); break; }
bin = malloc(size);
if (!bin) { FSFILE_Close(rsrc); break; }
u32 dummy = 0;
rc = FSFILE_Read(rsrc, &dummy, 0, bin, size);
FSFILE_Close(rsrc);
if (R_FAILED(rc)) { free(bin); return false; }
componentBin = bin;
componentSize = size;
componentFree = true;
return true;
} while (0);
// Try loading the DSP component from hb:ndsp
rsrc = envGetHandle("hb:ndsp");
if (rsrc) do
{
extern u32 fake_heap_end;
u32 mapAddr = (fake_heap_end+0xFFF) &~ 0xFFF;
rc = svcMapMemoryBlock(rsrc, mapAddr, 0x3, 0x3);
if (R_FAILED(rc)) break;
componentSize = *(u32*)(mapAddr + 0x104);
bin = malloc(componentSize);
if (bin)
memcpy(bin, (void*)mapAddr, componentSize);
svcUnmapMemoryBlock(rsrc, mapAddr);
if (!bin) break;
componentBin = bin;
componentFree = true;
return true;
} while (0);
return false;
}
Result srvGetServiceHandle(Handle* out, const char* name)
{
/* Look in service-list given to us by loader. If we find find a match,
we return it. */
Handle h = envGetHandle(name);
if(h != 0) {
return svcDuplicateHandle(out, h);
}
/* Normal request to service manager. */
return srvGetServiceHandleDirect(out, name);
}
void irrstExit(void)
{
if (AtomicDecrement(&irrstRefCount)) return;
svcCloseHandle(irrstEvent);
// Unmap ir:rst sharedmem and close handles.
svcUnmapMemoryBlock(irrstMemHandle, (u32)irrstSharedMem);
if(envGetHandle("ir:rst") == 0) IRRST_Shutdown();
svcCloseHandle(irrstMemHandle);
svcCloseHandle(irrstHandle);
if(irrstSharedMem != NULL)
{
mappableFree((void*) irrstSharedMem);
irrstSharedMem = NULL;
}
}
Result irrstInit(void)
{
if (AtomicPostIncrement(&irrstRefCount)) return 0;
Result ret=0;
// Request service.
if(R_FAILED(ret=srvGetServiceHandle(&irrstHandle, "ir:rst"))) goto cleanup0;
// Get sharedmem handle.
if(R_FAILED(ret=IRRST_GetHandles(&irrstMemHandle, &irrstEvent))) goto cleanup1;
// Initialize ir:rst
if(envGetHandle("ir:rst") == 0) ret = IRRST_Initialize(10, 0);
// Map ir:rst shared memory.
irrstSharedMem=(vu32*)mappableAlloc(0x98);
if(!irrstSharedMem)
{
ret = -1;
goto cleanup1;
}
if(R_FAILED(ret = svcMapMemoryBlock(irrstMemHandle, (u32)irrstSharedMem, MEMPERM_READ, 0x10000000))) goto cleanup2;
// Reset internal state.
kHeld = 0;
return 0;
cleanup2:
svcCloseHandle(irrstMemHandle);
if(irrstSharedMem != NULL)
{
mappableFree((void*) irrstSharedMem);
irrstSharedMem = NULL;
}
cleanup1:
svcCloseHandle(irrstHandle);
cleanup0:
AtomicDecrement(&irrstRefCount);
return ret;
}
int main()
{
Handle rsrc;
bool failed = true;
gfxInitDefault();
consoleInit(GFX_TOP, NULL);
printf("\x1b[10;10HFetching DSP component...\x1b[12;10H");
rsrc = envGetHandle("hb:ndsp");
if (!rsrc)
{
printf("\x1b[31;1mFailed\x1b[0m: Need to run using *hax 2.0+");
}
else do
{
Result rc;
u32 len;
void* bin;
extern u32 fake_heap_end;
char* filename = "sdmc:/3ds/dspfirm.cdc";
u32 mapAddr = (fake_heap_end+0xFFF) &~ 0xFFF;
rc = svcMapMemoryBlock(rsrc, mapAddr, 0x3, 0x3);
if (R_FAILED(rc)) break;
len = *(u32*)(mapAddr + 0x104);
bin = malloc(len);
if (bin)
memcpy(bin, (void*)mapAddr, len);
svcUnmapMemoryBlock(rsrc, mapAddr);
if (!bin) break;
FILE* file = fopen(filename, "wb");
if (!file) break;
fwrite(bin, 1, len, file);
fclose(file);
failed = false;
printf("\x1b[32;1mDone\x1b[0m: No further steps needed!\n");
free(bin);
} while (0);
if (rsrc && failed)
printf("\x1b[31;1mFailed\x1b[0m: Unknown error. Try again.");
printf("\x1b[28;15HPress START to exit.");
while (aptMainLoop())
{
hidScanInput();
u32 kDown = hidKeysDown();
if (kDown & KEY_START)
break;
gfxFlushBuffers();
gfxSwapBuffers();
gspWaitForVBlank();
}
gfxExit();
return 0;
}
