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DSTT: Add DMA support and reduce code size (#162) Fixes #111

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lifehackerhansol
2026-05-10 00:37:38 -07:00
committed by GitHub
parent ae034ae1f6
commit e227cff9ee
12 changed files with 452 additions and 140 deletions
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28
arm9/source/patches/platform/dstt/DsttReadSdPatchCode.h
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@@ -3,36 +3,30 @@
#include "thumbInstructions.h"
#include "patches/PatchCode.h"
#include "../IReadSectorsPatchCode.h"
#include "DsttSdStopTransmissionPatchCode.h"
#include "DsttReadSdHelperPatchCode.h"
DEFINE_SECTION_SYMBOLS(dstt_readsd);
DEFINE_SECTION_SYMBOLS(dstt_readsd_stopTransmission);
extern "C" void dstt_readSd(u32 srcSector, void* dst, u32 sectorCount);
extern "C" void dstt_stopTransmission();
extern u32 dstt_readSd_applySectorCommand_address;
extern u32 dstt_waitDataReady_address;
extern u32 dstt_transferData_address;
extern u32 dstt_stopTransmission_address;
extern u16 dstt_readSd_sdsc_shift;
class DsttReadSdStopTransmissionPatchCode : public PatchCode
{
public:
explicit DsttReadSdStopTransmissionPatchCode(PatchHeap& patchHeap)
: PatchCode(SECTION_START(dstt_readsd_stopTransmission), SECTION_SIZE(dstt_readsd_stopTransmission), patchHeap) { }
const void* GetStopTransmissionFunction() const
{
return GetAddressAtTarget((void*)dstt_stopTransmission);
}
};
class DsttReadSdPatchCode : public PatchCode, public IReadSectorsPatchCode
{
public:
explicit DsttReadSdPatchCode(PatchHeap& patchHeap,
const DsttReadSdStopTransmissionPatchCode* dsttReadSdStopTransmissionPatchCode)
const DsttSdStopTransmissionPatchCode* dsttSdStopTransmissionPatchCode,
const DsttReadSdHelperPatchCode* dsttReadSdHelperPatchCode)
: PatchCode(SECTION_START(dstt_readsd), SECTION_SIZE(dstt_readsd), patchHeap)
{
dstt_stopTransmission_address = (u32)dsttReadSdStopTransmissionPatchCode->GetStopTransmissionFunction();
dstt_readSd_applySectorCommand_address = (u32)dsttReadSdHelperPatchCode->GetApplySectorCommandFunction();
dstt_stopTransmission_address = (u32)dsttSdStopTransmissionPatchCode->GetStopTransmissionFunction();
dstt_waitDataReady_address = (u32)dsttReadSdHelperPatchCode->GetWaitDataReadyFunction();
dstt_transferData_address = (u32)dsttReadSdHelperPatchCode->GetTransferDataFunction();
}
const ReadSectorsFunc GetReadSectorsFunction() const override