periph.c File Reference

Macros
Reset Network
The following constants define various reset lines in the subsystem
#define	XPER_HLSIP_RESET   (0x00)
#define	XPER_HLSIP_ENABLE   (0x01)

Functions
void	XPeriph_ReportDeviceInfo (XPeriph *InstancePtr)
	This function reports system wide common peripherals included in the design. More...
int	XPeriph_PowerOnInit (XPeriph *InstancePtr)
	This function initializes system wide common peripherals. More...
void	XPeriph_ResetHlsIp (XPeriph *InstancePtr)
	This function resets the Hls IP block(s) More...
void	XPeriph_ConfigTpg (XPeriph *InstancePtr)
	This function configures TPG to user defined parameters. More...
void	XPeriph_SetTpgParams (XPeriph *InstancePtr, u16 width, u16 height, XVidC_ColorFormat Cformat, u16 Pattern, u16 IsInterlaced)
	This function sets the parameters for the Test Pattern Generator (TPG) in the XPeriph instance. More...
void	XPeriph_DisableTpg (XPeriph *InstancePtr)
	This function stops TPG IP. More...
void	XPeriph_TpgDbgReportStatus (XPeriph *InstancePtr)
	This function reports TPG Status. More...
void	XPeriph_ConfigVtc (XPeriph *InstancePtr, XVidC_VideoStream *StreamPtr, u32 PixPerClk)
	This function configures the Video Timing Controller (VTC) for a given peripheral instance based on the provided video stream parameters and the number of pixels per clock. More...

Function Documentation

void XPeriph_ConfigTpg

(

XPeriph *

InstancePtr

)

This function configures TPG to user defined parameters.

Parameters

InstancePtr

is a pointer to the peripheral instance

void XPeriph_ConfigVtc	(	XPeriph *	InstancePtr,
		XVidC_VideoStream *	StreamPtr,
		u32	PixPerClk
	)

This function configures the Video Timing Controller (VTC) for a given peripheral instance based on the provided video stream parameters and the number of pixels per clock.

The function performs the following steps:

• Disables and resets the VTC generator.
• Sets the source selection to use generator registers for all timing parameters.
• Manually writes to the VTC control register to handle the interlace field workaround.
• Populates the XVtc_Timing structure with horizontal and vertical timing values from the provided video stream, adjusting horizontal counts by the PixPerClk value.
• Applies a workaround for known VTC offset issues by adjusting vertical porch values.
• Sets the polarity of all VTC outputs according to the video stream timing.
• Enables the VTC generator and updates the register configuration.

Parameters

InstancePtr	Pointer to the XPeriph instance to configure.
StreamPtr	Pointer to the XVidC_VideoStream structure containing timing information.
PixPerClk	Number of pixels processed per clock cycle.

Returns

None.

void XPeriph_DisableTpg

(

XPeriph *

InstancePtr

)

This function stops TPG IP.

Parameters

InstancePtr

is a pointer to the peripheral instance

int XPeriph_PowerOnInit

(

XPeriph *

InstancePtr

)

This function initializes system wide common peripherals.

Parameters

InstancePtr

is a pointer to the Subsystem instance to be worked on.

Returns

XST_SUCCESS

References XPeriph_ResetHlsIp().

Referenced by XSys_Init().

void XPeriph_ReportDeviceInfo

(

XPeriph *

InstancePtr

)

This function reports system wide common peripherals included in the design.

Parameters

InstancePtr

is a pointer to the Subsystem instance to be worked on.

Referenced by XSys_ReportSystemInfo().

void XPeriph_ResetHlsIp

(

XPeriph *

InstancePtr

)

This function resets the Hls IP block(s)

Parameters

InstancePtr

is a pointer to the peripheral instance

Referenced by XPeriph_PowerOnInit().

void XPeriph_SetTpgParams	(	XPeriph *	InstancePtr,
		u16	width,
		u16	height,
		XVidC_ColorFormat	Cformat,
		u16	Pattern,
		u16	IsInterlaced
	)

This function sets the parameters for the Test Pattern Generator (TPG) in the XPeriph instance.

Parameters

InstancePtr	Pointer to the XPeriph instance.
width	Width of the test pattern to be generated.
height	Height of the test pattern to be generated.
Cformat	Color format for the test pattern (of type XVidC_ColorFormat).
Pattern	Pattern type to be generated.
IsInterlaced	Flag indicating whether the output should be interlaced (1) or progressive (0).

Returns

None

References XPeriph_SetTPGColorFormat, XPeriph_SetTPGHeight, XPeriph_SetTPGInterlacedMode, XPeriph_SetTPGPattern, and XPeriph_SetTPGWidth.

void XPeriph_TpgDbgReportStatus

(

XPeriph *

InstancePtr

)

This function reports TPG Status.

Parameters

InstancePtr

is a pointer to the peripheral instance

Returns

None.