XV_HDMIRXSS_HANDLER_STREAM_INIT - 3.1 English - PG236

This interrupt is triggered every time a stream is detected and the Video PHY Controller /HDMI GT Subsystem is stabilized for the HDMI 1.4/2.0 RX Subsystem to start stream locking.

The callback function must perform the following steps:

1. Check the event is for cable connected or cable disconnected.

   XV_HdmiRxSs *HdmiRxSsPtr = (XV_HdmiRxSs *)CallbackRef;
   HdmiRxSsPtr->IsStreamConnected

   • 1 - Connected
   • 0 - Disconnected
2. Retrieve the video stream information.

   XVidC_VideoStream *XV_HdmiRxSs_GetVideoStream(XV_HdmiRxSs *InstancePtr);

3. Calculate the HDMI MMCM parameter based on the video stream information received.

   u32 XVphy_HdmiCfgCalcMmcmParam(XVphy *InstancePtr, 
                                  u8 QuadId,
                                  XVphy_ChannelId ChId, 
                                  XVphy_DirectionType Dir,
                                  XVidC_PixelsPerClock Ppc, 
                                  XVidC_ColorDepth Bpc);

4. Enable the Video PHY Controller /HDMI GT Subsystem to start the MMCM.

   void XVphy_MmcmStart(XVphy *InstancePtr,
                        u8 QuadId,
                        XVphy_DirectionType Dir);

   where,

   • InstancePtr is a pointer to the XVphy core instance.
   • QuadId is the GT quad ID to operate on.
   • Dir is an indicator for TX or RX.
   Note: QuadId is not used and should be set to 0.

   For example:

   XVphy_MmcmStart(&Vphy, 0, XVPHY_DIR_RX);