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#include "PRinternal/piint.h"
#include "PR/ultraerror.h"
s32 osEPiStartDma(OSPiHandle* pihandle, OSIoMesg* mb, s32 direction) {
register s32 ret;
if (!__osPiDevMgr.active) {
#ifdef _DEBUG
__osError(ERR_OSPISTARTDMA_PIMGR, 0);
#endif
return -1;
}
#ifdef _DEBUG
if ((mb->hdr.pri != OS_MESG_PRI_NORMAL) && (mb->hdr.pri != OS_MESG_PRI_HIGH)) {
__osError(ERR_OSPISTARTDMA_PRI, 1, mb->hdr.pri);
return -1;
}
if ((direction != OS_READ) && (direction != OS_WRITE)) {
__osError(ERR_OSPISTARTDMA_DIR, 1, direction);
return -1;
}
if (mb->devAddr & 0x1) {
__osError(ERR_OSPISTARTDMA_DEVADDR, 1, mb->devAddr);
return -1;
}
if ((u32)mb->dramAddr & 0x7) {
__osError(ERR_OSPISTARTDMA_ADDR, 1, mb->dramAddr);
return -1;
}
if (mb->size & 0x1) {
__osError(ERR_OSPISTARTDMA_SIZE, 1, mb->size);
return -1;
}
if ((mb->size == 0) || (mb->size > (16 * 1024 * 1024))) {
__osError(ERR_OSPISTARTDMA_RANGE, 1, mb->size);
return -1;
}
#endif
mb->piHandle = pihandle;
if (direction == OS_READ) {
mb->hdr.type = OS_MESG_TYPE_EDMAREAD;
} else {
mb->hdr.type = OS_MESG_TYPE_EDMAWRITE;
}
if (mb->hdr.pri == OS_MESG_PRI_HIGH) {
ret = osJamMesg(osPiGetCmdQueue(), (OSMesg)mb, OS_MESG_NOBLOCK);
} else {
ret = osSendMesg(osPiGetCmdQueue(), (OSMesg)mb, OS_MESG_NOBLOCK);
}
return ret;
}
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