16 lines
436 B
C
16 lines
436 B
C
#include "global.h"
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s32 __osSpRawStartDma(s32 direction, void* devAddr, void* dramAddr, 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, u32) = (u32)devAddr;
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HW_REG(SP_DRAM_ADDR_REG, u32) = osVirtualToPhysical(dramAddr);
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if (direction == OS_READ) {
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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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