Overview

Enumerations
enum	XV_MULTISCALER_TYPE
	This typedef eumerates the Scaler Type. More...
enum	XV_MULTISCALER_TAPS
	This typedef enumerates the supported taps. More...

Functions
void	XVMultiScaler_SetCallback (XV_multi_scaler *InstancePtr, void *CallbackFunc, void *CallbackRef)
	This function installs an asynchronous callback function: More...
void *	XV_MultiScalerIntrHandler (void *InstancePtr)
	This function is the interrupt handler for the MultiScaler core driver. More...
void	XV_MultiScalerStart (XV_multi_scaler *InstancePtr)
	This function starts the multi scaler core. More...
void	XV_MultiScalerStop (XV_multi_scaler *InstancePtr)
	This function stops the multi scaler core. More...
u32	XV_MultiScalerGetNumOutputs (XV_multi_scaler *InstancePtr)
	This function returns the number of outputs. More...
void	XV_MultiScalerSetNumOutputs (XV_multi_scaler *InstancePtr, u32 NumOuts)
	This function sets the number of outputs. More...
void	XV_MultiScalerGetChannelConfig (XV_multi_scaler *InstancePtr, XV_multi_scaler_Video_Config *MS_cfg)
	This function reads the channel configuration. More...
void	XV_MultiScalerSetChannelConfig (XV_multi_scaler *InstancePtr, XV_multi_scaler_Video_Config *MS_cfg)
	This function configures the scaler core registers with the specified configuration parameters. More...

Enumeration Type Documentation

enum XV_MULTISCALER_TAPS

This typedef enumerates the supported taps.

enum XV_MULTISCALER_TYPE

This typedef eumerates the Scaler Type.

Function Documentation

void XV_MultiScalerGetChannelConfig	(	XV_multi_scaler *	InstancePtr,
		XV_multi_scaler_Video_Config *	MS_cfg
	)

This function reads the channel configuration.

The ChannelId of the channel for which the configuration info is needed has to be filled by the application in the MS_cfg structure.

Parameters

InstancePtr	is a pointer to the core instance to be worked on.
MS_cfg	is a pointer to the multi scaler config structure.

Returns

None

u32 XV_MultiScalerGetNumOutputs

(

XV_multi_scaler *

InstancePtr

)

This function returns the number of outputs.

Parameters

InstancePtr

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

Returns

number of outputs

void* XV_MultiScalerIntrHandler

(

void *

InstancePtr

)

This function is the interrupt handler for the MultiScaler core driver.

This handler clears the pending interrupt and determines if the source is frame done signal. If yes, calls the registered callback function.

The application is responsible for connecting this function to the interrupt system.

Parameters

InstancePtr

is a pointer to the core instance that just interrupted.

Returns

None.

Note

None.

void XV_MultiScalerSetChannelConfig	(	XV_multi_scaler *	InstancePtr,
		XV_multi_scaler_Video_Config *	MS_cfg
	)

This function configures the scaler core registers with the specified configuration parameters.

Parameters

InstancePtr	is a pointer to the core instance to be worked on.
MS_cfg	is a pointer to the multi scaler config structure.

Returns

None

void XV_MultiScalerSetNumOutputs	(	XV_multi_scaler *	InstancePtr,
		u32	NumOuts
	)

This function sets the number of outputs.

Parameters

InstancePtr	is a pointer to the core instance to be worked on.
NumOuts	is the number of output channels.

Returns

None

void XV_MultiScalerStart

(

XV_multi_scaler *

InstancePtr

)

This function starts the multi scaler core.

Parameters

InstancePtr

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

Returns

None

void XV_MultiScalerStop

(

XV_multi_scaler *

InstancePtr

)

This function stops the multi scaler core.

Parameters

InstancePtr

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

Returns

None

void XVMultiScaler_SetCallback	(	XV_multi_scaler *	InstancePtr,
		void *	CallbackFunc,
		void *	CallbackRef
	)

This function installs an asynchronous callback function:

Parameters

InstancePtr	is a pointer to the MultiScaler IP instance.
CallbackFunc	is the address of the callback function.
CallbackRef	is a user data item that will be passed to the callback function when it is invoked.

Returns

None.

Note

Invoking this function for a handler that already has been installed replaces it with the new handler.