PVRSRV_ERROR IMG_CALLCONV PVRSRVInit(PSYS_DATA psSysData)
{
PVRSRV_ERROR eError;
eError = ResManInit();
if (eError != PVRSRV_OK)
{
goto Error;
}
eError = PVRSRVPerProcessDataInit();
if(eError != PVRSRV_OK)
{
goto Error;
}
eError = PVRSRVHandleInit();
if(eError != PVRSRV_OK)
{
goto Error;
}
eError = OSCreateResource(&psSysData->sPowerStateChangeResource);
if (eError != PVRSRV_OK)
{
goto Error;
}
psSysData->eCurrentPowerState = PVRSRV_SYS_POWER_STATE_D0;
psSysData->eFailedPowerState = PVRSRV_SYS_POWER_STATE_Unspecified;
if(OSAllocMem( PVRSRV_PAGEABLE_SELECT,
sizeof(PVRSRV_EVENTOBJECT) ,
(IMG_VOID **)&psSysData->psGlobalEventObject, 0,
"Event Object") != PVRSRV_OK)
{
goto Error;
}
if(OSEventObjectCreate("PVRSRV_GLOBAL_EVENTOBJECT", psSysData->psGlobalEventObject) != PVRSRV_OK)
{
goto Error;
}
PDUMPINIT();
g_ui32InitFlags |= INIT_DATA_ENABLE_PDUMPINIT;
return eError;
Error:
PVRSRVDeInit(psSysData);
return eError;
}
enum PVRSRV_ERROR PVRSRVInit(struct SYS_DATA *psSysData)
{
enum PVRSRV_ERROR eError;
eError = ResManInit();
if (eError != PVRSRV_OK)
goto Error;
eError = PVRSRVPerProcessDataInit();
if (eError != PVRSRV_OK)
goto Error;
eError = PVRSRVHandleInit();
if (eError != PVRSRV_OK)
goto Error;
eError = OSCreateResource(&psSysData->sPowerStateChangeResource);
if (eError != PVRSRV_OK)
goto Error;
psSysData->eCurrentPowerState = PVRSRV_POWER_STATE_D0;
psSysData->eFailedPowerState = PVRSRV_POWER_Unspecified;
#if defined(PDUMP)
psSysData->bPowerUpPDumped = IMG_FALSE;
#endif
if (OSAllocMem(PVRSRV_PAGEABLE_SELECT,
sizeof(struct PVRSRV_EVENTOBJECT),
(void **) &psSysData->psGlobalEventObject,
NULL) != PVRSRV_OK)
goto Error;
if (OSEventObjectCreate("PVRSRV_GLOBAL_EVENTOBJECT",
psSysData->psGlobalEventObject) != PVRSRV_OK)
goto Error;
return eError;
Error:
PVRSRVDeInit(psSysData);
return eError;
}
/* TLInit must only be called once at driver initialisation for one device.
* An assert is provided to check this condition on debug builds.
*/
PVRSRV_ERROR
TLInit(PVRSRV_DEVICE_NODE *psDevNode)
{
PVRSRV_ERROR eError;
PVR_DPF_ENTERED;
PVR_ASSERT(psDevNode);
PVR_ASSERT(sTLGlobalData.psRgxDevNode==0);
/* Store the RGX device node for later use in devmem buffer allocations */
sTLGlobalData.psRgxDevNode = (IMG_VOID*)psDevNode;
/* Allocate a lock for TL global data, to be used while updating the TL data.
* This is for making TL global data muti-thread safe */
eError = OSLockCreate (&sTLGlobalData.hTLGDLock, LOCK_TYPE_PASSIVE);
if (eError != PVRSRV_OK)
{
goto e0;
}
/* Allocate the event object used to signal global TL events such as
* new stream created */
eError = OSEventObjectCreate("TLGlobalEventObj", &sTLGlobalData.hTLEventObj);
if (eError != PVRSRV_OK)
{
goto e1;
}
PVR_DPF_RETURN_OK;
/* Don't allow the driver to start up on error */
e1:
OSLockDestroy (sTLGlobalData.hTLGDLock);
sTLGlobalData.hTLGDLock = NULL;
e0:
PVR_DPF_RETURN_RC (eError);
}
/*******************************************************************************
* TL Server public API implementation.
******************************************************************************/
PVRSRV_ERROR
TLStreamCreate(IMG_HANDLE *phStream,
IMG_CHAR *szStreamName,
IMG_UINT32 ui32Size,
IMG_UINT32 ui32StreamFlags,
TL_STREAM_SOURCECB pfProducerCB,
IMG_PVOID pvProducerUD)
{
PTL_STREAM psTmp;
PVRSRV_ERROR eError;
IMG_HANDLE hEventList;
PTL_SNODE psn = 0;
IMG_CHAR pszBufferLabel[PRVSRVTL_MAX_STREAM_NAME_SIZE+20];
DEVMEM_FLAGS_T uiMemFlags = PVRSRV_MEMALLOCFLAG_CPU_READABLE |
PVRSRV_MEMALLOCFLAG_CPU_WRITEABLE |
PVRSRV_MEMALLOCFLAG_GPU_READABLE |
PVRSRV_MEMALLOCFLAG_GPU_WRITEABLE |
PVRSRV_MEMALLOCFLAG_UNCACHED | /* GPU & CPU */
PVRSRV_MEMALLOCFLAG_ZERO_ON_ALLOC |
PVRSRV_MEMALLOCFLAG_CPU_WRITE_COMBINE;
PVR_DPF_ENTERED;
/* Sanity checks: */
/* non NULL handler required */
if ( NULL == phStream )
{
PVR_DPF_RETURN_RC(PVRSRV_ERROR_INVALID_PARAMS);
}
if (OSStringLength(szStreamName) >= PRVSRVTL_MAX_STREAM_NAME_SIZE)
{
PVR_DPF_RETURN_RC(PVRSRV_ERROR_INVALID_PARAMS);
}
/* Check if there already exists a stream with this name. */
psn = TLFindStreamNodeByName( szStreamName );
if ( IMG_NULL != psn )
{
PVR_DPF_RETURN_RC(PVRSRV_ERROR_ALREADY_EXISTS);
}
/* Allocate stream structure container (stream struct) for the new stream */
psTmp = OSAllocZMem(sizeof(TL_STREAM)) ;
if ( NULL == psTmp )
{
PVR_DPF_RETURN_RC(PVRSRV_ERROR_OUT_OF_MEMORY);
}
OSStringCopy(psTmp->szName, szStreamName);
if ( ui32StreamFlags & TL_FLAG_FORCE_FLUSH )
{
psTmp->bWaitForEmptyOnDestroy = IMG_TRUE;
}
psTmp->bNoSignalOnCommit = (ui32StreamFlags&TL_FLAG_NO_SIGNAL_ON_COMMIT) ? IMG_TRUE : IMG_FALSE;
if ( ui32StreamFlags & TL_FLAG_DROP_DATA )
{
if ( ui32StreamFlags & TL_FLAG_BLOCKING_RESERVE )
{
eError = PVRSRV_ERROR_INVALID_PARAMS;
goto e0;
}
psTmp->bDrop = IMG_TRUE;
}
else if ( ui32StreamFlags & TL_FLAG_BLOCKING_RESERVE )
{ /* Additional synchronization object required for this kind of stream */
psTmp->bBlock = IMG_TRUE;
eError = OSEventObjectCreate(NULL, &psTmp->hProducerEventObj);
if (eError != PVRSRV_OK)
{
goto e0;
}
/* Create an event handle for this kind of stream */
eError = OSEventObjectOpen(psTmp->hProducerEventObj, &psTmp->hProducerEvent);
if (eError != PVRSRV_OK)
{
goto e1;
}
}
/* Remember producer supplied CB and data for later */
psTmp->pfProducerCallback = (IMG_VOID(*)(IMG_VOID))pfProducerCB;
psTmp->pvProducerUserData = pvProducerUD;
/* Round the requested bytes to a multiple of array elements' size, eg round 3 to 4 */
psTmp->ui32Size = PVRSRVTL_ALIGN(ui32Size);
psTmp->ui32Read = 0;
psTmp->ui32Write = 0;
psTmp->ui32Pending = NOTHING_PENDING;
OSSNPrintf(pszBufferLabel, sizeof(pszBufferLabel), "TLStreamBuf-%s", szStreamName);
/* Allocate memory for the circular buffer and export it to user space. */
eError = DevmemAllocateExportable( IMG_NULL,
(IMG_HANDLE) TLGetGlobalRgxDevice(),
(IMG_DEVMEM_SIZE_T)psTmp->ui32Size,
(IMG_DEVMEM_ALIGN_T) OSGetPageSize(),
uiMemFlags | PVRSRV_MEMALLOCFLAG_KERNEL_CPU_MAPPABLE,
pszBufferLabel,
&psTmp->psStreamMemDesc);
PVR_LOGG_IF_ERROR(eError, "DevmemAllocateExportable", e2);
eError = DevmemAcquireCpuVirtAddr( psTmp->psStreamMemDesc, (IMG_VOID**) &psTmp->pbyBuffer );
PVR_LOGG_IF_ERROR(eError, "DevmemAcquireCpuVirtAddr", e3);
eError = DevmemExport(psTmp->psStreamMemDesc, &(psTmp->sExportCookie));
PVR_LOGG_IF_ERROR(eError, "DevmemExport", e4);
/* Synchronization object to synchronize with user side data transfers. */
eError = OSEventObjectCreate(psTmp->szName, &hEventList);
if (eError != PVRSRV_OK)
{
goto e5;
}
/* Stream created, now reset the reference count to 1 */
psTmp->uiRefCount = 1;
//Thread Safety: Not yet implemented eError = OSLockCreate(&psTmp->hLock, LOCK_TYPE_PASSIVE);
//Thread Safety: Not yet implemented if (eError != PVRSRV_OK)
//Thread Safety: Not yet implemented {
//Thread Safety: Not yet implemented goto e6;
//Thread Safety: Not yet implemented }
/* Now remember the stream in the global TL structures */
psn = TLMakeSNode(hEventList, (TL_STREAM *)psTmp, 0);
if (psn == NULL)
{
eError=PVRSRV_ERROR_OUT_OF_MEMORY;
goto e7;
}
TLAddStreamNode(psn);
/* Best effort signal, client wait timeout will ultimately let it find the
* new stream if this fails, acceptable to avoid cleanup as it is tricky
* at this point */
(void) OSEventObjectSignal(TLGGD()->hTLEventObj);
/* Pass the newly created stream handle back to caller */
*phStream = (IMG_HANDLE)psTmp;
PVR_DPF_RETURN_OK;
e7:
//Thread Safety: Not yet implemented OSLockDestroy(psTmp->hLock);
//Thread Safety: Not yet implemented e6:
OSEventObjectDestroy(hEventList);
e5:
DevmemUnexport(psTmp->psStreamMemDesc, &(psTmp->sExportCookie));
e4:
DevmemReleaseCpuVirtAddr( psTmp->psStreamMemDesc );
e3:
DevmemFree(psTmp->psStreamMemDesc);
e2:
OSEventObjectClose(psTmp->hProducerEvent);
e1:
OSEventObjectDestroy(psTmp->hProducerEventObj);
e0:
OSFREEMEM(psTmp);
PVR_DPF_RETURN_RC(eError);
}
