17 lines
459 B
C
17 lines
459 B
C
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#include "libultra_internal.h"
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#include "hardware.h"
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s32 __osSpRawStartDma(u32 dir, void *sp_ptr, void *dram_ptr, size_t size) {
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if (__osSpDeviceBusy()) {
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return -1;
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}
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HW_REG(SP_MEM_ADDR_REG, void *) = sp_ptr;
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HW_REG(SP_DRAM_ADDR_REG, void *) = (void *) osVirtualToPhysical(dram_ptr);
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if (dir == 0) {
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HW_REG(SP_WR_LEN_REG, u32) = size - 1;
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} else {
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HW_REG(SP_RD_LEN_REG, u32) = size - 1;
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}
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return 0;
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}
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