/**
*
* This function disables the DisplayPort Transmitter Subsystem sub-cores.
*
* @param InstancePtr is a pointer to the XDpTxSs core instance.
*
* @return None.
*
* @note None.
*
******************************************************************************/
void XDpTxSs_Stop(XDpTxSs *InstancePtr)
{
u8 Index;
/* Verify argument. */
Xil_AssertVoid(InstancePtr != NULL);
if (InstancePtr->DpPtr) {
/* disable main link */
XDp_TxDisableMainLink(InstancePtr->DpPtr);
}
#if (XPAR_XDUALSPLITTER_NUM_INSTANCES > 0)
if (InstancePtr->DsPtr) {
/* Disable Dual Splitter */
XDualSplitter_Disable(InstancePtr->DsPtr);
}
#endif
for (Index = 0; Index < InstancePtr->Config.NumMstStreams; Index++) {
if (InstancePtr->VtcPtr[Index]) {
/* Disable all the VTC sub-cores */
XVtc_Disable(InstancePtr->VtcPtr[Index]);
}
}
}
/**
*
* vgen_config
* - configures the generator to generate missing syncs
*
* @param pVtc is a pointer to an initialized VTC instance
* ResolutionId identified a video resolution
* vVerbose = 0 no verbose, 1 minimal verbose, 2 most verbose
*
* @return 0 if all tests pass, 1 otherwise.
*
* @note None.
*
******************************************************************************/
int vgen_config(XVtc *pVtc, int ResolutionId, int bVerbose)
{
vres_timing_t VideoTiming;
int HFrontPorch;
int HSyncWidth;
int HSyncPol;
int HBackPorch;
int VFrontPorch;
int VSyncWidth;
int VSyncPol;
int VBackPorch;
int LineWidth;
int FrameHeight;
XVtc_Signal Signal; /* VTC Signal configuration */
XVtc_Polarity Polarity; /* Polarity configuration */
XVtc_SourceSelect SourceSelect; /* Source Selection configuration */
/* Get Video Resolution timing */
if ( bVerbose )
{
xil_printf( "\tVideo Resolution = %s\n\r", vres_get_name(ResolutionId) );
}
vres_get_timing(ResolutionId, &VideoTiming);
HFrontPorch = VideoTiming.HFrontPorch;
HSyncWidth = VideoTiming.HSyncWidth;
HSyncPol = VideoTiming.HSyncPolarity;
HBackPorch = VideoTiming.HBackPorch;
VFrontPorch = VideoTiming.VFrontPorch;
VSyncWidth = VideoTiming.VSyncWidth;
VSyncPol = VideoTiming.VSyncPolarity;
VBackPorch = VideoTiming.VBackPorch;
LineWidth = VideoTiming.HActiveVideo;
FrameHeight = VideoTiming.VActiveVideo;
/* Disable/Reset VTC */
XVtc_Disable(pVtc, XVTC_EN_GENERATOR);
XVtc_Reset(pVtc);
/* Set up Polarity of all outputs */
memset((void *)&Polarity, 0, sizeof(Polarity));
Polarity.ActiveChromaPol = 1;
Polarity.ActiveVideoPol = 1;
Polarity.FieldIdPol = 0;
Polarity.VBlankPol = 1;
Polarity.VSyncPol = VSyncPol;
Polarity.HBlankPol = 1;
Polarity.HSyncPol = HSyncPol;
/* Set up Generator */
memset((void *)&Signal, 0, sizeof(XVtc_Signal));
Signal.OriginMode = 1; //Set Frame Origin to Start of Active Video
Signal.HTotal = HFrontPorch + HSyncWidth + HBackPorch + LineWidth;
Signal.HActiveStart = 0;
Signal.HFrontPorchStart = LineWidth;
Signal.HSyncStart = LineWidth + HFrontPorch;
Signal.HBackPorchStart = LineWidth + HFrontPorch + HSyncWidth;
Signal.V0Total = FrameHeight + VFrontPorch + VSyncWidth + VBackPorch;
Signal.V0ChromaStart = 0;
Signal.V0ActiveStart = 0;
Signal.V0FrontPorchStart = FrameHeight;
Signal.V0SyncStart = FrameHeight + VFrontPorch;
Signal.V0BackPorchStart = FrameHeight + VFrontPorch + VSyncWidth;
/* Set up source select */
memset((void *)&SourceSelect, 0, sizeof(SourceSelect));
SourceSelect.VBlankPolSrc = 1;
SourceSelect.VSyncPolSrc = 1;
SourceSelect.HBlankPolSrc = 1;
SourceSelect.HSyncPolSrc = 1;
SourceSelect.ActiveVideoPolSrc = 1;
SourceSelect.ActiveChromaPolSrc= 1;
SourceSelect.VChromaSrc = 1;
SourceSelect.VActiveSrc = 1;
SourceSelect.VBackPorchSrc = 1;
SourceSelect.VSyncSrc = 1;
SourceSelect.VFrontPorchSrc = 1;
SourceSelect.VTotalSrc = 1;
SourceSelect.HActiveSrc = 1;
SourceSelect.HBackPorchSrc = 1;
SourceSelect.HSyncSrc = 1;
SourceSelect.HFrontPorchSrc = 1;
SourceSelect.HTotalSrc = 1;
if ( bVerbose == 2 )
{
xil_printf("\tVTC Generator Configuration\n\r" );
xil_printf("\t\tHorizontal Timing:\n\r" );
xil_printf("\t\t\tHActiveStart = %d\r\n", Signal.HActiveStart);
xil_printf("\t\t\tHFrontPorchStart %d\r\n", Signal.HFrontPorchStart);
xil_printf("\t\t\tHSyncStart %d\r\n", Signal.HSyncStart);
xil_printf("\t\t\tHBackPorchStart %d\r\n", Signal.HBackPorchStart);
xil_printf("\t\t\tHTotal = %d\r\n", Signal.HTotal);
xil_printf("\t\tVertical Timing:\n\r" );
xil_printf("\t\t\tV0ActiveStart %d\r\n", Signal.V0ActiveStart);
xil_printf("\t\t\tV0FrontPorchStart %d\r\n", Signal.V0FrontPorchStart);
xil_printf("\t\t\tV0SyncStart %d\r\n", Signal.V0SyncStart);
xil_printf("\t\t\tV0BackPorchStart %d\r\n", Signal.V0BackPorchStart);
xil_printf("\t\t\tV0Total %d\r\n", Signal.V0Total);
}
/* Write configuration to hardware */
XVtc_SetPolarity(pVtc, &Polarity);
XVtc_SetGenerator(pVtc, &Signal);
XVtc_SetSource(pVtc, &SourceSelect);
/* Enable the generator module */
XVtc_DisableSync(pVtc);
//XVtc_SetFSync(pVtc, 0, Signal.V0SyncStart, 1);
XVtc_Enable(pVtc, XVTC_EN_GENERATOR);
XVtc_RegUpdate(pVtc);
/* Return success */
return 0;
}
