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35 lines
754 B
C++
35 lines
754 B
C++
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#include "dma.h"
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#include "game/sce/iop.h"
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using namespace iop;
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// note that jak 1 and 2 have different implementations, but we make them both instant.
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// jak 2 has an EE dma semaphore, but we're going to ignore that.
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/*!
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* Wait for an ongoing DMA transfer to finish.
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* IOP DMAs are instant in this version, so we return immediately and clear dmaid.
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*/
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void DMA_Sync() {}
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/*!
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* Start DMA transfer to the EE.
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*/
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void DMA_SendToEE(void* data, u32 size, void* dest) {
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// finish previous DMA
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DMA_Sync();
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sceSifDmaData cmd; // DMA settings
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// setup command
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cmd.mode = 0;
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cmd.data = data;
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cmd.addr = dest;
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cmd.size = size;
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// start DMA (with disabled interrupts)
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CpuDisableIntr();
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sceSifSetDma(&cmd, 1);
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CpuEnableIntr();
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}
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