//.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- DtuEventsInit -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
//
// Initialised the events structure and mark the event as Initialised/InUse.
//
DtStatus DtuEventsInit(DtuDeviceData* pDvcData)
{
Int i;
for (i=0; i<MAX_NUM_FILE_HANDLES; i++)
{
pDvcData->m_Events[i].m_RefCount = 0;
// Initialize spinlock
DtSpinLockInit(&pDvcData->m_Events[i].m_Lock);
DtEventInit(&pDvcData->m_Events[i].m_PendingEvent, FALSE);
}
return DT_STATUS_OK;
}
//-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- DtaEnDecInit -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
//
DtStatus DtaEnDecInit(DtaNonIpPort* pNonIpPort)
{
DtaEnDecPort* pEnDec = &pNonIpPort->m_EnDec;
// Initialize common data first
pEnDec->m_ExclAccess = FALSE;
DtSpinLockInit(&pEnDec->m_ExclAccessLock);
// Defer to encoder/decoder specific implementation
if (pNonIpPort->m_pDvcData->m_DevInfo.m_TypeNumber == 2180 ||
pNonIpPort->m_pDvcData->m_DevInfo.m_TypeNumber == 2182)
return DtaEncD7ProInit(pNonIpPort, DtaEnDecExclusiveAccess);
return DT_STATUS_NOT_SUPPORTED;
}
//.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- DtaEventsAllocEventsObject -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
//
static DtaEvents* DtaEventsAllocEventsObject(
DtaDeviceData* pDvcData,
DtFileObject* pFileHandle,
UInt EventTypeMask)
{
DtaEvents* pDtaEvents;
pDtaEvents = (DtaEvents*)DtMemAllocPool(DtPoolNonPaged, sizeof(DtaEvents), DTA_TAG);
if (pDtaEvents == NULL)
{
DtDbgOut(ERR, EVENTS, "Out of memory allocating DtaEvents struct");
return NULL;
}
DtAtomicSet(&pDtaEvents->m_RefCount, 1);
pDtaEvents->m_File = *pFileHandle;
pDtaEvents->m_EventTypeMask = EventTypeMask;
pDtaEvents->m_CancelInProgress = FALSE;
pDtaEvents->m_NumPendingEvents = 0;
DtEventInit(&pDtaEvents->m_PendingEvent, FALSE);
DtSpinLockInit(&pDtaEvents->m_Lock);
memset(&pDtaEvents->m_PendingEvents, 0, sizeof(pDtaEvents->m_PendingEvents));
// Insert at start of list
DtSpinLockAcquire(&pDvcData->m_EventsSpinlock);
pDtaEvents->m_pPrev = NULL;
pDtaEvents->m_pNext = NULL;
if (pDvcData->m_pEvents != NULL)
{
pDtaEvents->m_pNext = pDvcData->m_pEvents;
pDtaEvents->m_pNext->m_pPrev = pDtaEvents;
}
pDvcData->m_pEvents = pDtaEvents;
DtSpinLockRelease(&pDvcData->m_EventsSpinlock);
return pDtaEvents;
}
//.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- DtaEventsInit -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
//
// Initialised the events structure and mark the event as Initialised/InUse.
//
DtStatus DtaEventsInit(DtaDeviceData* pDvcData)
{
DtSpinLockInit(&pDvcData->m_EventsSpinlock);
pDvcData->m_pEvents = NULL;
return DT_STATUS_OK;
}
