#include "common.h"

extern OSPiHandle* carthandle;

/* 1A4F0 8008A0F0 */
void romCopy(u32 devAddr, void* dramAddr, u32 size, s32 direction) {
    OSIoMesg dmaIoMesgBuf;
    OSMesgQueue dmaMessageQ;
    void* dummyMesg;

    osCreateMesgQueue(&dmaMessageQ, &dummyMesg, 1);
    
    dmaIoMesgBuf.hdr.pri = OS_MESG_PRI_NORMAL;
    dmaIoMesgBuf.hdr.retQueue = &dmaMessageQ;
    dmaIoMesgBuf.dramAddr = dramAddr;
    dmaIoMesgBuf.devAddr = devAddr;
    dmaIoMesgBuf.size = size;

    if (direction == OS_READ) {
        osInvalDCache(dramAddr, size);
    } else {
        osWritebackDCache(dramAddr, size);
    }

    osEPiStartDma(carthandle, &dmaIoMesgBuf, direction);
    osRecvMesg(&dmaMessageQ, &dummyMesg, OS_MESG_BLOCK);
}