rx.c File Reference

Overview

MODIFICATION HISTORY:

Ver   Who    Date     Changes

Functions
void	mask_intr (void)
	This function masks the TX interrupts. More...
u32	DpRxSs_Setup (void)
	This function configures DisplayPort RX Subsystem. More...
u32	DpRxSs_SetupIntrSystem (void)
	This function sets up the interrupt system so interrupts can occur for the DisplayPort RX Subsystem core. More...
void	DpRxSs_PowerChangeHandler (void *InstancePtr)
	This function is the callback function for when the power state interrupt occurs. More...
void	DpRxSs_VideoValidHandler (void *InstancePtr)
	This function is the callback function for when the power state interrupt occurs. More...
void	DpRxSs_VmChangeHandler (void *InstancePtr)
	This function is the callback function for when a video mode change interrupt occurs. More...
void	DpRxSs_NoVideoHandler (void *InstancePtr)
	This function is the callback function for when a no video interrupt occurs. More...
void	DpRxSs_VerticalBlankHandler (void *InstancePtr)
	This function is the callback function for when a vertical blank interrupt occurs. More...
void	DpRxSs_TrainingLostHandler (void *InstancePtr)
	This function is the callback function for when a training lost interrupt occurs. More...
void	DpRxSs_VideoHandler (void *InstancePtr)
	This function is the callback function for when a valid video interrupt occurs. More...
void	DpRxSs_TrainingDoneHandler (void *InstancePtr)
	This function is the callback function for when the training done interrupt occurs. More...
void	DpRxSs_UnplugHandler (void *InstancePtr)
	This function is the callback function for when the unplug event occurs. More...
void	DpRxSs_LinkBandwidthHandler (void *InstancePtr)
	This function is the callback function for when the link bandwidth change occurs. More...
void	DpRxSs_PllResetHandler (void *InstancePtr)
	This function is the callback function for PLL reset request. More...
void	DpRxSs_BWChangeHandler (void *InstancePtr)
	This function is the callback function for PLL reset request. More...
void	DpRxSs_AccessLaneSetHandler (void *InstancePtr)
	This function is the callback function for Access lane set request. More...
void	DpRxSs_CRCTestEventHandler (void *InstancePtr)
	This function is the callback function for Test CRC Event request. More...
void	DpRxSs_AccessLinkQualHandler (void *InstancePtr)
	This function is the callback function for Access link qual request. More...
void	DpRxSs_AccessErrorCounterHandler (void *InstancePtr)
	This function is the callback function for Access prbs error count. More...
void	ReportVideoCRC ()
	This function reports CRC values of Video components. More...
void	DpRxSs_InfoPacketHandler (void *InstancePtr)
	This function is the callback function for Info Packet Handling. More...
void	DpRxSs_ExtPacketHandler (void *InstancePtr)
	This function is the callback function for Generic Packet Handling of 32-Bytes payload. More...

Variables
XDpTxSs	DpTxSsInst
XTmrCtr	TmrCtr

Function Documentation

void DpRxSs_AccessErrorCounterHandler

(

void *

InstancePtr

)

This function is the callback function for Access prbs error count.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_AccessLaneSetHandler

(

void *

InstancePtr

)

This function is the callback function for Access lane set request.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

void DpRxSs_AccessLinkQualHandler

(

void *

InstancePtr

)

This function is the callback function for Access link qual request.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

References I2C_MCDP6000_ADDR.

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_BWChangeHandler

(

void *

InstancePtr

)

This function is the callback function for PLL reset request.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_CRCTestEventHandler

(

void *

InstancePtr

)

This function is the callback function for Test CRC Event request.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_ExtPacketHandler

(

void *

InstancePtr

)

This function is the callback function for Generic Packet Handling of 32-Bytes payload.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_InfoPacketHandler

(

void *

InstancePtr

)

This function is the callback function for Info Packet Handling.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_LinkBandwidthHandler

(

void *

InstancePtr

)

This function is the callback function for when the link bandwidth change occurs.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_NoVideoHandler

(

void *

InstancePtr

)

This function is the callback function for when a no video interrupt occurs.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_PllResetHandler

(

void *

InstancePtr

)

This function is the callback function for PLL reset request.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_PowerChangeHandler

(

void *

InstancePtr

)

This function is the callback function for when the power state interrupt occurs.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

Referenced by DpRxSs_SetupIntrSystem().

u32 DpRxSs_Setup

(

void

)

This function configures DisplayPort RX Subsystem.

Parameters

None.

Returns

• XST_SUCCESS if DP RX Subsystem configured successfully.
• XST_FAILURE, otherwise.

Note

None.

u32 DpRxSs_SetupIntrSystem

(

void

)

This function sets up the interrupt system so interrupts can occur for the DisplayPort RX Subsystem core.

The function is application-specific since the actual system may or may not have an interrupt controller. The DPRX Subsystem core could be directly connected to a processor without an interrupt controller. The user should modify this function to fit the application.

Parameters

None

Returns

• XST_SUCCESS if interrupt setup was successful.
• A specific error code defined in "xstatus.h" if an error occurs.

Note

None.

References DpRxSs_AccessErrorCounterHandler(), DpRxSs_AccessLinkQualHandler(), DpRxSs_BWChangeHandler(), DpRxSs_CRCTestEventHandler(), DpRxSs_ExtPacketHandler(), DpRxSs_InfoPacketHandler(), DpRxSs_LinkBandwidthHandler(), DpRxSs_NoVideoHandler(), DpRxSs_PllResetHandler(), DpRxSs_PowerChangeHandler(), DpRxSs_TrainingDoneHandler(), DpRxSs_TrainingLostHandler(), DpRxSs_UnplugHandler(), DpRxSs_VerticalBlankHandler(), DpRxSs_VideoHandler(), DpRxSs_VideoValidHandler(), DpRxSs_VmChangeHandler(), and TmrCtr.

void DpRxSs_TrainingDoneHandler

(

void *

InstancePtr

)

This function is the callback function for when the training done interrupt occurs.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_TrainingLostHandler

(

void *

InstancePtr

)

This function is the callback function for when a training lost interrupt occurs.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

References mask_intr().

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_UnplugHandler

(

void *

InstancePtr

)

This function is the callback function for when the unplug event occurs.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

References mask_intr().

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_VerticalBlankHandler

(

void *

InstancePtr

)

This function is the callback function for when a vertical blank interrupt occurs.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_VideoHandler

(

void *

InstancePtr

)

This function is the callback function for when a valid video interrupt occurs.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_VideoValidHandler

(

void *

InstancePtr

)

This function is the callback function for when the power state interrupt occurs.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

Referenced by DpRxSs_SetupIntrSystem().

void DpRxSs_VmChangeHandler

(

void *

InstancePtr

)

This function is the callback function for when a video mode change interrupt occurs.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

Referenced by DpRxSs_SetupIntrSystem().

void mask_intr

(

void

)

This function masks the TX interrupts.

Parameters

user_config_struct.

Returns

Status.

Note

None.

References XDpTxSs::DpPtr.

Referenced by DpRxSs_TrainingLostHandler(), and DpRxSs_UnplugHandler().

void ReportVideoCRC

(

void

)

This function reports CRC values of Video components.

Parameters

None.

Returns

None.

Note

None.

Variable Documentation

XDpTxSs DpTxSsInst

MODIFICATION HISTORY:

Ver  Who      Date      Changes
-— —      -----—  -----------------------------------------------—.
1.00  ND      18/10/22  Common DP 2.1 tx only application for zcu102 and
                                                  vcu118
1.01    ND              26/02/24  Added support for 13.5 and 20G

XTmrCtr TmrCtr

MODIFICATION HISTORY:

Ver  Who      Date      Changes
-— —      -----—  -----------------------------------------------—.
1.00  ND      18/10/22  Common DP 2.1 tx only application for zcu102 and
                                                  vcu118
1.01    ND              26/02/24  Added support for 13.5 and 20G
1.02  ND      24/03/25  Added support for PARRETO fmc
1.03  ND      02/05/25  Changed the VESA color encode format to CEA.

Referenced by DpPt_CustomWaitUs(), DpRxSs_SetupIntrSystem(), DpTxSs_SetupIntrSystem(), and xil_getc().