xdptxss_hdcp_example.c File Reference

Overview

This file contains a design example using the XDpTxSs driver in single stream (SST) transport or multi-stream transport (MST) mode and enables HDCP.

Note

For this example to display output, the user need to implement initialization of the system (DpTxSs_PlatformInit) and after DisplayPort TX subsystem start (XDpTxSs_Start) is complete, implement configuration of the video stream source in order to provide the DisplayPort TX Subsystem HIP input. The functions DpTxSs_PlatformInit and DpTxSs_StreamSrc are declared and are left up to the user implement.

MODIFICATION HISTORY:

Ver  Who Date     Changes



2.00 sha 09/28/15 Initial release.
4.1  ms  01/23/17 Modified xil_printf statement in main function to
                  ensure that "Successfully ran" and "Failed" strings
                  are available in all examples. This is a fix for
                  CR-965028.

Functions
u32	DpTxSs_HdcpExample (u16 DeviceId)
	This function is the main entry point for the HDCP example using the XDpTxSs driver. More...
u32	DpTxSs_PlatformInit (void)
	This function initialize required platform-specifc peripherals. More...
u32	DpTxSs_StreamSrc (u8 VerticalSplit)
	This function setup stream source to input DisplayPort TX Subsystem. More...
int	main ()
	This is the main function for XDpTxSs SST/MST example. More...

Variables
XDpTxSs	DpTxSsInst

Function Documentation

u32 DpTxSs_HdcpExample

(

u16

DeviceId

)

This function is the main entry point for the HDCP example using the XDpTxSs driver.

This function will enable HDCP during DisplayPort TX Subsystem set up to work in MST/SST mode.

Parameters

DeviceId

is the unique device ID of the DisplayPort TX Subsystem core.

Returns

• XST_SUCCESS if DisplayPort TX Subsystem HDCP enabled successfully.
• XST_FAILURE, otherwise.

Note

None.

References XDpTxSs_Config::BaseAddress, DpTxSs_PlatformInit(), DpTxSs_StreamSrc(), XDpTxSs_UsrOpt::MstSupport, XDpTxSs::UsrOpt, XDpTxSs_UsrOpt::VmId, XDpTxSs_CfgInitialize(), XDpTxSs_GetRxCapabilities(), XDpTxSs_IsMstCapable(), XDpTxSs_LookupConfig(), XDpTxSs_SetBpc(), XDpTxSs_SetLaneCount(), XDpTxSs_SetLinkRate(), XDpTxSs_SetTransportMode(), XDpTxSs_SetVidMode(), and XDpTxSs_Start().

Referenced by main().

u32 DpTxSs_PlatformInit

(

void

)

This function initialize required platform-specifc peripherals.

Parameters

None.

Returns

• XST_SUCCESS if required peripherals are initialized and configured successfully.
• XST_FAILURE, otherwise.

Note

None.

u32 DpTxSs_StreamSrc

(

u8

VerticalSplit

)

This function setup stream source to input DisplayPort TX Subsystem.

Parameters

VerticalSplit

specifies whether to split video frame vertically into two different vertical halves. 1 = Vertically split input frame 0 = No vertically split input frame.

Returns

• XST_SUCCESS if stream source is configured successfully.
• XST_FAILURE, otherwise.

Note

None.

int main

(

void

)

This is the main function for XDpTxSs SST/MST example.

Parameters

None.

Returns

• XST_SUCCESS if the MST/SST example passed.
• XST_FAILURE if the MST/SST example was unsuccessful.

Note

None.

References DpTxSs_HdcpExample().

Variable Documentation

XDpTxSs DpTxSsInst

MODIFICATION HISTORY:

Ver  Who     Date      Changes



1.00 Nishant 19/12/20 Added support for vck190.Added ReadModifyWrite()
                                                for writing to vck190 register space.set_vphy() renamed
                                                to config_phy() and has two parameters for linerate and
                                                lanecount.