#include "PR/os_internal.h"
#include "PR/rcp.h"
#include "piint.h"

void __osDevMgrMain(void* args) {
    OSIoMesg* mb;
    OSMesg em;
    OSMesg dummy;
    s32 ret;
    OSDevMgr* dm;
    s32 messageSend = 0;

    dm = (OSDevMgr*)args;
    mb = NULL;
    ret = 0;

    while (TRUE) {
        osRecvMesg(dm->cmdQueue, (OSMesg)&mb, OS_MESG_BLOCK);

        if (mb->piHandle != NULL && mb->piHandle->type == DEVICE_TYPE_64DD &&
            (mb->piHandle->transferInfo.cmdType == LEO_CMD_TYPE_0 ||
             mb->piHandle->transferInfo.cmdType == LEO_CMD_TYPE_1)) {
            __OSBlockInfo* blockInfo;
            __OSTranxInfo* info;
            info = &mb->piHandle->transferInfo;
            blockInfo = &info->block[info->blockNum];
            info->sectorNum = -1;

            if (info->transferMode != LEO_SECTOR_MODE) {
                blockInfo->dramAddr = (void*)((u32)blockInfo->dramAddr - blockInfo->sectorSize);
            }

            if (info->transferMode == LEO_TRACK_MODE && mb->piHandle->transferInfo.cmdType == LEO_CMD_TYPE_0) {
                messageSend = 1;
            } else {
                messageSend = 0;
            }

            osRecvMesg(dm->acsQueue, &dummy, OS_MESG_BLOCK);
            __osResetGlobalIntMask(OS_IM_PI);
            __osEPiRawWriteIo(mb->piHandle, LEO_BM_CTL, (info->bmCtlShadow | 0x80000000));

        readblock1:
            osRecvMesg(dm->evtQueue, &em, OS_MESG_BLOCK);
            info = &mb->piHandle->transferInfo;
            blockInfo = &info->block[info->blockNum];

            if (blockInfo->errStatus == LEO_ERROR_29) {
                u32 stat;
                __osEPiRawWriteIo(mb->piHandle, LEO_BM_CTL, info->bmCtlShadow | LEO_BM_CTL_RESET);
                __osEPiRawWriteIo(mb->piHandle, LEO_BM_CTL, info->bmCtlShadow);
                __osEPiRawReadIo(mb->piHandle, LEO_STATUS, &stat);

                if (stat & LEO_STATUS_MECHANIC_INTERRUPT) {
                    __osEPiRawWriteIo(mb->piHandle, LEO_BM_CTL, info->bmCtlShadow | LEO_BM_CTL_CLR_MECHANIC_INTR);
                }

                blockInfo->errStatus = LEO_ERROR_4;
                IO_WRITE(PI_STATUS_REG, PI_CLR_INTR);
                __osSetGlobalIntMask(OS_IM_PI | SR_IBIT4);
            }

            osSendMesg(mb->hdr.retQueue, mb, OS_MESG_NOBLOCK);

            if (messageSend == 1 && mb->piHandle->transferInfo.block[0].errStatus == LEO_ERROR_GOOD) {
                messageSend = 0;
                goto readblock1;
            }

            osSendMesg(dm->acsQueue, NULL, OS_MESG_NOBLOCK);
            if (mb->piHandle->transferInfo.blockNum == 1) {
                osYieldThread();
            }
        } else {
            switch (mb->hdr.type) {
                case OS_MESG_TYPE_DMAREAD:
                    osRecvMesg(dm->acsQueue, &dummy, OS_MESG_BLOCK);
                    ret = dm->dma(OS_READ, mb->devAddr, mb->dramAddr, mb->size);
                    break;
                case OS_MESG_TYPE_DMAWRITE:
                    osRecvMesg(dm->acsQueue, &dummy, OS_MESG_BLOCK);
                    ret = dm->dma(OS_WRITE, mb->devAddr, mb->dramAddr, mb->size);
                    break;
                case OS_MESG_TYPE_EDMAREAD:
                    osRecvMesg(dm->acsQueue, &dummy, OS_MESG_BLOCK);
                    ret = dm->edma(mb->piHandle, OS_READ, mb->devAddr, mb->dramAddr, mb->size);
                    break;
                case OS_MESG_TYPE_EDMAWRITE:
                    osRecvMesg(dm->acsQueue, &dummy, OS_MESG_BLOCK);
                    ret = dm->edma(mb->piHandle, OS_WRITE, mb->devAddr, mb->dramAddr, mb->size);
                    break;
                case OS_MESG_TYPE_LOOPBACK:
                    osSendMesg(mb->hdr.retQueue, mb, OS_MESG_NOBLOCK);
                    ret = -1;
                    break;
                default:
                    ret = -1;
                    break;
            }

            if (ret == 0) {
                osRecvMesg(dm->evtQueue, &em, OS_MESG_BLOCK);
                osSendMesg(mb->hdr.retQueue, mb, OS_MESG_NOBLOCK);
                osSendMesg(dm->acsQueue, NULL, OS_MESG_NOBLOCK);
            }
        }
    }
}
