Integrate HDMI PHY Controller /HDMI GT Subsystem Driver for HDMI 2.1 RX Subsystem Use - 1.2 English

Because the HDMI 2.1 RX Subsystem is closely coupled with the HDMI PHY Controller /HDMI GT Subsystem, the following example code demonstrates how a HDMI PHY Controller /HDMI GT Subsystem can be used in your application.

To integrate and use the HDMI PHY Controller /HDMI GT Subsystem for the HDMI 2.1 RX Subsystem in the application code, the following steps must be followed:

1. Include the subsystem header file xhdmiphy1.h that defines the subsystem object.
2. Declare and allocate space for a HDMI PHY Controller /HDMI GT Subsystem instance in your application code.
3. In the HDMI PHY Controller /HDMI GT Subsystem instance, there is a metadata structure to store the subsystem hardware configuration. Declare a pointer variable in the application code to point to the instance:

   XHdmiphy1_Config *XHdmiphy1CfgPtr;

4. For each HDMI PHY Controller /HDMI GT Subsystem instance, the above data structure needs to be initialized based on its hardware configuration, which is passed through meta-structure from xparameters.h uniquely identified by the device ID.

   To initialize the HDMI PHY Controller/HDMI GT Subsystem, call the following two API functions:

   XHdmiphy1_Config *XHdmiphy1_LookupConfig(u16 DeviceId);
   u32 XHdmiphy1_Hdmi_CfgInitialize(XHdmiphy1 *InstancePtr,
                                    u8 QuadId,
                                    XHdmiphy1_Config *CfgPtr);

   The Device ID can be found in xparameters.h:

   XPAR_[HDMI PHY Controller Instance Name in IPI]_DEVICE_ID