21 lines
587 B
C
21 lines
587 B
C
#include "global.h"
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s32 __osSiRawStartDma(s32 dir, void* addr) {
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if (HW_REG(SI_STATUS_REG, u32) & (SI_STATUS_DMA_BUSY | SI_STATUS_IO_READ_BUSY)) {
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return -1;
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}
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if (dir == OS_WRITE) {
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osWritebackDCache(addr, 0x40);
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}
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HW_REG(SI_DRAM_ADDR_REG, void*) = (void*)osVirtualToPhysical(addr);
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if (dir == OS_READ) {
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HW_REG(SI_PIF_ADDR_RD64B_REG, void*) = (void*)PIF_RAM_START;
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} else {
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HW_REG(SI_PIF_ADDR_WR64B_REG, void*) = (void*)PIF_RAM_START;
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}
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if (dir == OS_READ) {
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osInvalDCache(addr, 0x40);
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}
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return 0;
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}
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