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#include "libultra_internal.h"
#include "hardware.h"
//! @todo figure out why this is like this
extern u32 osRomBase;
s32 osPiRawStartDma(s32 dir, u32 cart_addr, void* dram_addr, size_t size) {
register int status;
status = HW_REG(PI_STATUS_REG, u32);
while (status & (PI_STATUS_BUSY | PI_STATUS_IOBUSY | PI_STATUS_ERROR)) {
status = HW_REG(PI_STATUS_REG, u32);
}
HW_REG(PI_DRAM_ADDR_REG, void*) = (void*) osVirtualToPhysical(dram_addr);
HW_REG(PI_CART_ADDR_REG, void*) = (void*) (((uintptr_t) osRomBase | cart_addr) & 0x1fffffff);
switch (dir) {
case 0:
HW_REG(PI_WR_LEN_REG, u32) = size - 1;
break;
case 1:
HW_REG(PI_RD_LEN_REG, u32) = size - 1;
break;
default:
return -1;
break;
}
return 0;
}
#ifdef VERSION_EU
/*s32 osPiRawStartDma_2(s32 dir, u32 cart_addr, void *dram_addr, size_t size) {
register int status;
status = HW_REG(PI_STATUS_REG, u32);
while (status & (PI_STATUS_BUSY | PI_STATUS_IOBUSY | PI_STATUS_ERROR)) {
status = HW_REG(PI_STATUS_REG, u32);
}
HW_REG(PI_DRAM_ADDR_REG, void *) = (void *) osVirtualToPhysical(dram_addr);
HW_REG(PI_CART_ADDR_REG, void *) = (void *) (((uintptr_t) osRomBase | cart_addr) & 0x1fffffff);
switch (dir) {
case 0:
HW_REG(PI_WR_LEN_REG, u32) = size - 1;
break;
case 1:
HW_REG(PI_RD_LEN_REG, u32) = size - 1;
break;
default:
return -1;
break;
}
return 0;
}*/
#endif
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