Functions
void	XDcDma_CfgInitialize (XDcDma *InstancePtr, u32 BaseAddr)
	This function initializes the configuration for the DcDma Instance. More...

void	XDcDma_WriteProtEnable (XDcDma *InstancePtr)
	This function enables the write protection for DCDMA registers. More...

void	XDcDma_WriteProtDisable (XDcDma *InstancePtr)
	This function disables the write protection for DCDMA registers. More...

u32	XDCDma_GetWriteProt (XDcDma *InstancePtr)
	This function programs the DPDMA_GLBL register with trigger channels. More...

void	XDcDma_SetDescDelay (XDcDma *InstancePtr, XDcDma_ChannelId Id, u16 Val)
	This function programs the Desc Delay for required channel. More...

void	XDcDma_SetDataQoS (XDcDma *InstancePtr, XDcDma_ChannelType Channel, u8 Val)
	This function programs the data QoS for a channel. More...

void	XDcDma_SetDescQoS (XDcDma *InstancePtr, XDcDma_ChannelType Channel, u8 Val)
	This function programs the DPDMA_GLBL register with trigger channels. More...

void	XDcDma_SetAxCache (XDcDma *InstancePtr, XDcDma_ChannelId Id, u8 Val)
	This function programs the Ax Cache register for specific channel. More...

void	XDcDma_SetAxProt (XDcDma *InstancePtr, XDcDma_ChannelId Id, u8 Val)
	This function programs the AxProt register for specific channel. More...

u32	XDcDma_ConfigChannelState (XDcDma *InstancePtr, XDcDma_ChannelId Id, XDcDma_State Enable)
	This function programs the channel state as enable, disable or idle. More...

u32	XDcDma_WaitPendingTransaction (XDcDma *InstancePtr, XDcDma_ChannelId Id)
	This function checks for any pending transactions for a given channel. More...

u32	XDCDma_GetOutstandingTxn (XDcDma *InstancePtr, XDcDma_ChannelId Id)
	This function programs the DPDMA_GLBL register with trigger channels. More...

void	XDcDma_InterruptEnable (XDcDma *InstancePtr, u32 Mask)
	This function enables the interrupt. More...

void	XDcDma_InterruptDisable (XDcDma *InstancePtr, u32 Mask)
	This function disables the interrupt. More...

u32	XDcDma_SetCallBack (XDcDma InstancePtr, XDcDma_IntHandlerType HandlerType, void CallbackFunc, void *CallbackRef)
	This function sets the callback for different interrupt handlers. More...

u32	XDcDma_Trigger (XDcDma *InstancePtr, XDcDma_ChannelType Channel)
	This function programs the DPDMA_GLBL register with trigger channels. More...

u32	XDcDma_ReTrigger (XDcDma *InstancePtr, XDcDma_ChannelType Channel)
	This function programs the DPDMA_GLBL register with retrigger channels. More...

void	XDcDma_InterruptHandler (XDcDma *InstancePtr)
	This function calls the VsyncInterrupt Handler. More...

void	XDcDma_VSyncHandler (XDcDma *InstancePtr)
	This function services the VsyncInterrupt. More...

void	XDcDma_SetupChannel (XDcDma *InstancePtr, XDcDma_ChannelType Channel)
	This function sets the descriptor address for each video stream. More...

void	XDcDma_DescInit (XDcDma_Descriptor *XDesc)
	This function creates the descriptor for the DcDma Instance. More...

u32	XDcDma_GetNewDescId (XDcDma *InstancePtr)
	This function incremeants the LastDescId of DcDma Instance. More...

Function Documentation

void XDcDma_CfgInitialize	(	XDcDma *	InstancePtr,
		u32	BaseAddr
	)

This function initializes the configuration for the DcDma Instance.

Parameters

InstancePtr	is a pointer to the XDcDma instance.
BaseAddr	sets the base address of the DcDma instance

Returns: None.

Note: Base address and DeviceId is same as the Dc Timing driver.

u32 XDcDma_ConfigChannelState	(	XDcDma *	InstancePtr,
		XDcDma_ChannelId	Id,
		XDcDma_State	Enable
	)

This function programs the channel state as enable, disable or idle.

Parameters

InstancePtr	is a pointer to the XDcDma instance.
ChannelId	is channel to configure
Enable	sets the channel state.

Returns: XST_SUCCESS or XST_FAILURE.

References XDCDMA_CH0_CNTL, XDcDma_ConfigChannelState(), XDcDma_ReadModifyWrite, and XDcDma_WaitPendingTransaction().

Referenced by XDcDma_ConfigChannelState(), and XDcDma_VSyncHandler().

void XDcDma_DescInit ( XDcDma_Descriptor * XDesc )

This function creates the descriptor for the DcDma Instance.

Parameters

InstancePtr is a pointer to the XDcDma instance.

Returns: None.

u32 XDcDma_GetNewDescId ( XDcDma * InstancePtr )

This function incremeants the LastDescId of DcDma Instance.

Parameters

InstancePtr is a pointer to the XDcDma instance.

Returns: Updated LastDescId.

References XDcDma::LastDescId.

u32 XDCDma_GetOutstandingTxn	(	XDcDma *	InstancePtr,
		XDcDma_ChannelId	Id
	)

This function programs the DPDMA_GLBL register with trigger channels.

Parameters

InstancePtr	is a pointer to the XDcDma instance.
Channel	Id is channel number.

Returns: XST_SUCCESS or XST_FAILURE.

References XDCDMA_CH0_STATUS, and XDcDma_ReadReg.

Referenced by XDcDma_WaitPendingTransaction().

u32 XDCDma_GetWriteProt ( XDcDma * InstancePtr )

This function programs the DPDMA_GLBL register with trigger channels.

Parameters

InstancePtr is a pointer to the XDcDma instance.

Returns: XST_SUCCESS or XST_FAILURE.

References XDcDma_ReadReg, and XDCDMA_WPROTS.

void XDcDma_InterruptDisable	(	XDcDma *	InstancePtr,
		u32	Mask
	)

This function disables the interrupt.

Parameters

InstancePtr is a pointer to the XDcDma instance.

Returns: None.

References XDCDMA_MISC_IDR, and XDcDma_WriteReg.

void XDcDma_InterruptEnable	(	XDcDma *	InstancePtr,
		u32	Mask
	)

This function enables the interrupt.

Parameters

InstancePtr	is a pointer to the XDcDma instance.
Mask	is interrupt to unmask.

Returns: None.

References XDCDMA_MISC_IER, XDCDMA_MISC_ISR, and XDcDma_WriteReg.

void XDcDma_InterruptHandler ( XDcDma * InstancePtr )

This function calls the VsyncInterrupt Handler.

Parameters

InstancePtr is a pointer to the XDcDma instance.

Returns: None.

References XDCDMA_MISC_ISR, XDcDma_ReadReg, and XDcDma_VSyncHandler().

u32 XDcDma_ReTrigger	(	XDcDma *	InstancePtr,
		XDcDma_ChannelType	Channel
	)

This function programs the DPDMA_GLBL register with retrigger channels.

Parameters

InstancePtr is a pointer to the XDcDma instance.

Returns: XST_SUCCESS or XST_FAILURE.

References XDCDMA_GBL, and XDcDma_WriteReg.

Referenced by XDcDma_VSyncHandler().

void XDcDma_SetAxCache	(	XDcDma *	InstancePtr,
		XDcDma_ChannelId	Id,
		u8	Val
	)

This function programs the Ax Cache register for specific channel.

Parameters

InstancePtr	is a pointer to the XDcDma instance.
ChannelId	is channel number.
Val	to configure.

Returns: None.

References XDCDMA_CH0_CNTL, and XDcDma_ReadModifyWrite.

void XDcDma_SetAxProt	(	XDcDma *	InstancePtr,
		XDcDma_ChannelId	Id,
		u8	Val
	)

This function programs the AxProt register for specific channel.

Parameters

InstancePtr	is a pointer to the XDcDma instance.
ChannelId	is channel number.
Val	to configure.

Returns: None.

References XDCDMA_CH0_CNTL, and XDcDma_ReadModifyWrite.

u32 XDcDma_SetCallBack	(	XDcDma *	InstancePtr,
		XDcDma_IntHandlerType	HandlerType,
		void *	CallbackFunc,
		void *	CallbackRef
	)

This function sets the callback for different interrupt handlers.

Parameters

InstancePtr is a pointer to the XDcDma instance.

Returns: XST_SUCCESS or XST_FAILURE.

void XDcDma_SetDataQoS	(	XDcDma *	InstancePtr,
		XDcDma_ChannelType	Channel,
		u8	Val
	)

This function programs the data QoS for a channel.

Parameters

InstancePtr	is a pointer to the XDcDma instance.
ChannelType	is channel number.
Val	to configure.

Returns: None.

References XDCDMA_CH0_CNTL, and XDcDma_ReadModifyWrite.

void XDcDma_SetDescDelay	(	XDcDma *	InstancePtr,
		XDcDma_ChannelId	Id,
		u16	Val
	)

This function programs the Desc Delay for required channel.

Parameters

InstancePtr	is a pointer to the XDcDma instance.
Channel	ID
Val	specifies desc delay

Returns: None.

References XDCDMA_CH0_CNTL, and XDcDma_ReadModifyWrite.

void XDcDma_SetDescQoS	(	XDcDma *	InstancePtr,
		XDcDma_ChannelType	Channel,
		u8	Val
	)

This function programs the DPDMA_GLBL register with trigger channels.

Parameters

InstancePtr	is a pointer to the XDcDma instance.
ChannelType	is channel number.
Val	to configure.

Returns: None.

References XDCDMA_CH0_CNTL, and XDcDma_ReadModifyWrite.

void XDcDma_SetupChannel	(	XDcDma *	InstancePtr,
		XDcDma_ChannelType	Channel
	)

This function sets the descriptor address for each video stream.

Parameters

InstancePtr	is a pointer to the XDcDma instance.
Channel	type

Returns: None.

Referenced by XDcDma_VSyncHandler().

u32 XDcDma_Trigger	(	XDcDma *	InstancePtr,
		XDcDma_ChannelType	Channel
	)

This function programs the DPDMA_GLBL register with trigger channels.

Parameters

InstancePtr is a pointer to the XDcDma instance.

Returns: XST_SUCCESS or XST_FAILURE.

Referenced by XDcDma_VSyncHandler().

void XDcDma_VSyncHandler ( XDcDma * InstancePtr )

This function services the VsyncInterrupt.

Parameters

InstancePtr is a pointer to the XDcDma instance.

Returns: None.

References XDcDma_ConfigChannelState(), XDCDMA_GBL, XDCDMA_MISC_ISR, XDcDma_ReTrigger(), XDcDma_SetupChannel(), XDcDma_Trigger(), and XDcDma_WriteReg.

Referenced by XDcDma_InterruptHandler().

u32 XDcDma_WaitPendingTransaction	(	XDcDma *	InstancePtr,
		XDcDma_ChannelId	Id
	)

This function checks for any pending transactions for a given channel.

Parameters

InstancePtr	is a pointer to the XDcDma instance.
Channel	Id is channel number

Returns: XST_SUCCESS or XST_FAILURE.

References XDCDma_GetOutstandingTxn().

Referenced by XDcDma_ConfigChannelState().

void XDcDma_WriteProtDisable ( XDcDma * InstancePtr )

This function disables the write protection for DCDMA registers.

Parameters

InstancePtr is a pointer to the XDcDma instance.

Returns: None.

References XDCDMA_WPROTS, and XDcDma_WriteReg.

void XDcDma_WriteProtEnable ( XDcDma * InstancePtr )

This function enables the write protection for DCDMA registers.

Parameters

InstancePtr is a pointer to the XDcDma instance.

Returns: None.

References XDCDMA_WPROTS, and XDcDma_WriteReg.

Functions

Function Documentation