BSP Developer's Guide

VxWorks 5.5
BSP Developer’s Guide
pSbic = (SBIC *) pScsiCtrl;
/* Handle phase changes */
/* Start DMA, if used, or programmed i/o loop to transfer data */
/* Wait for transfer to complete: find out how many bytes transferred */
semTake (&pSbic->xferDoneSem, WAIT_FOREVER);
/*
* If there are bytes left to be transferred return ERROR
* If DMA is used for tranfer do a SCSI DMA Abort
*/
xxxXferCountGet (pSbic, &bytesLeft);
return (bufLength - bytesLeft);
}
/***************************************************************************
*
* xxxXferCountSet - load the SCSI controller transfer counter with count.
*
* RETURNS: OK if count is in range 0 - 0xffffff, otherwise ERROR.
*
*/
LOCAL STATUS xxxXferCountSet
(
FAST SBIC *pSbic, /* ptr to SBIC info */
FAST UINT count /* count value to load */
)
{
/* set the appropriate SCSI controller registers */
}
/***************************************************************************
*
* xxxXferCountGet - fetch the SCSI controller transfer count
*
* The value of the transfer counter is copied to *pCount.
*
*/
LOCAL void xxxXferCountGet
(
FAST SBIC *pSbic, /* ptr to SBIC info */
FAST UINT *pCount /* ptr to returned value */
)
{
/* read the appropriate SCSI controller registers */
}
/***************************************************************************
*
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