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