BSP Developer's Guide

VxWorks 5.5
BSP Developer’s Guide
* The script is started by the ISR in response to this event.
*
* NOTE: Interrupt locking is required to ensure that the correct action
* is taken once the controller state has been checked.
*
* RETURNS: OK, or ERROR if the controller is in an invalid state (this
* indicates a major software failure).
*/
LOCAL STATUS xxxActivate
(
SIOP *
pSiop,
XXX_THREAD * pThread
)
{
key = intLock ();
/* Activate controller for the current thread */
intUnlock (key);
return (status);
}
/****************************************************************************
*
* xxxAbort - abort the active script corresponding to the current thread
*
* Check that there is currently an active script running. If so, set the
* SCSI controller Abort flag which halts the script and causes an
* interrupt.
*
* RETURNS: N/A
*/
LOCAL void xxxAbort
(
SIOP * pSiop /* ptr to controller info */
)
{
STATUS status;
int key;
key = intLock ();
/* Abort the active script corresponding to the current thread */
intUnlock (key);
}
/***************************************************************************
*
* xxxScriptStart - start the SCSI controller executing a script
*
* Restore the SCSI controller register context, including the shared memory
* area, from the thread context. Put the address of the script entry point
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