xvid_pat_gen.c File Reference

Overview

This file contains functions to configure Video Pattern Generator core.

MODIFICATION HISTORY:

Ver   Who    Date     Changes



1.00  shad   01/29/15 Initial release.

Functions
void	ComputeMandD (u32 VidFreq)
	This function computes M and D value. More...
void	Vpg_VidgenSetTestPattern (XDp *InstancePtr, u8 Stream)
	This function sets pattern to generate in Video Pattern Generator core. More...
void	Vpg_Audio_start (void)
	This function starts audio pattern generator. More...
void	Vpg_Audio_stop (void)
	This function stops audio pattern generator. More...
int	Vpg_StreamSrcConfigure (XDp *InstancePtr, u8 VSplitMode, u8 first_time)
	This function updates required timing values in Video Pattern Generator core. More...
void	Vpg_VidgenSetUserPattern (XDp *InstancePtr, u8 Pattern)
	This function sets user pattern. More...
int	wait_for_lock (void)
	This function waits for PLL lock. More...

Function Documentation

void ComputeMandD

(

u32

VidFreq

)

This function computes M and D value.

Parameters

Video

frequency

Note

None.

References wait_for_lock().

void Vpg_Audio_start

(

void

)

This function starts audio pattern generator.

Returns

None.

Note

None.

void Vpg_Audio_stop

(

void

)

This function stops audio pattern generator.

Returns

None.

Note

None.

int Vpg_StreamSrcConfigure	(	XDp *	InstancePtr,
		u8	VSplitMode,
		u8	first_time
	)

This function updates required timing values in Video Pattern Generator core.

Parameters

InstancePtr	is a pointer to the XDp instance.
VSplitMode	specifies vertical split mode to be used for splitting resolution vertically.

Returns

• XST_SUCCESS if Video pattern configured successfully.

Note

None.

References Vpg_VidgenSetTestPattern().

void Vpg_VidgenSetTestPattern	(	XDp *	InstancePtr,
		u8	Stream
	)

This function sets pattern to generate in Video Pattern Generator core.

Parameters

InstancePtr	is a pointer to the XDp instance.
Stream	is the stream number for which to set the pattern.

Returns

None.

Note

None.

Referenced by Vpg_StreamSrcConfigure().

void Vpg_VidgenSetUserPattern	(	XDp *	InstancePtr,
		u8	Pattern
	)

This function sets user pattern.

Parameters

InstancePtr	is a pointer to the XDp instance.
Pattern	number to set with

Returns

None.

Note

None.

int wait_for_lock

(

void

)

This function waits for PLL lock.

Returns

pass/fail result. If there is error, none-zero value will return

Note

None.

Referenced by ComputeMandD().