Data Structures
struct	XV_hscaler_Config
	This typedef contains configuration information for the horizontal scaler core. More...

struct	XV_hscaler
	Driver instance data. More...

Functions
int	XV_hscaler_Initialize (XV_hscaler *InstancePtr, u16 DeviceId)
	XV_hscaler_Initialize - Initializes an XV_hscaler instance. More...

XV_hscaler_Config *	XV_hscaler_LookupConfig (u16 DeviceId)
	This function looks up the configuration for a device instance by its DeviceId. More...

int	XV_hscaler_CfgInitialize (XV_hscaler InstancePtr, XV_hscaler_Config ConfigPtr, UINTPTR EffectiveAddr)
	XV_hscaler_CfgInitialize - Initializes an XV_hscaler instance. More...

void	XV_hscaler_Start (XV_hscaler *InstancePtr)
	XV_hscaler_Start - Start the HScaler hardware. More...

u32	XV_hscaler_IsDone (XV_hscaler *InstancePtr)
	XV_hscaler_IsDone - Check if the HScaler operation is done. More...

u32	XV_hscaler_IsIdle (XV_hscaler *InstancePtr)
	XV_hscaler_IsIdle - Check if the HScaler hardware is idle. More...

u32	XV_hscaler_IsReady (XV_hscaler *InstancePtr)
	XV_hscaler_IsReady - Check if HScaler is ready for next input. More...

void	XV_hscaler_EnableAutoRestart (XV_hscaler *InstancePtr)
	XV_hscaler_EnableAutoRestart - Enable auto-restart mode. More...

void	XV_hscaler_DisableAutoRestart (XV_hscaler *InstancePtr)
	XV_hscaler_DisableAutoRestart - Disable auto-restart mode. More...

void	XV_hscaler_Set_HwReg_Height (XV_hscaler *InstancePtr, u32 Data)
	XV_hscaler_Set_HwReg_Height - Set the HWREG_HEIGHT register. More...

u32	XV_hscaler_Get_HwReg_Height (XV_hscaler *InstancePtr)
	XV_hscaler_Get_HwReg_Height - Get HWREG_HEIGHT register value. More...

void	XV_hscaler_Set_HwReg_WidthIn (XV_hscaler *InstancePtr, u32 Data)
	XV_hscaler_Set_HwReg_WidthIn - Set HWREG_WIDTHIN register. More...

u32	XV_hscaler_Get_HwReg_WidthIn (XV_hscaler *InstancePtr)
	XV_hscaler_Get_HwReg_WidthIn - Get HWREG_WIDTHIN register value. More...

void	XV_hscaler_Set_HwReg_WidthOut (XV_hscaler *InstancePtr, u32 Data)
	XV_hscaler_Set_HwReg_WidthOut - Set HWREG_WIDTHOUT register. More...

u32	XV_hscaler_Get_HwReg_WidthOut (XV_hscaler *InstancePtr)
	XV_hscaler_Get_HwReg_WidthOut - Get HWREG_WIDTHOUT register value. More...

void	XV_hscaler_Set_HwReg_ColorMode (XV_hscaler *InstancePtr, u32 Data)
	XV_hscaler_Set_HwReg_ColorMode - Set HWREG_COLORMODE register. More...

u32	XV_hscaler_Get_HwReg_ColorMode (XV_hscaler *InstancePtr)
	XV_hscaler_Get_HwReg_ColorMode - Get HWREG_COLORMODE register value. More...

void	XV_hscaler_Set_HwReg_ColorModeOut (XV_hscaler *InstancePtr, u32 Data)
	XV_hscaler_Set_HwReg_ColorModeOut - Set HWREG_COLORMODEOUT reg. More...

u32	XV_hscaler_Get_HwReg_ColorModeOut (XV_hscaler *InstancePtr)
	XV_hscaler_Get_HwReg_ColorModeOut - Get HWREG_COLORMODEOUT reg value. More...

void	XV_hscaler_Set_HwReg_PixelRate (XV_hscaler *InstancePtr, u32 Data)
	This function sets the hardware register pixel rate. More...

u32	XV_hscaler_Get_HwReg_PixelRate (XV_hscaler *InstancePtr)
	This function gets the hardware register pixel rate. More...

UINTPTR	XV_hscaler_Get_HwReg_hfltCoeff_BaseAddress (XV_hscaler *InstancePtr)
	This function gets the base address of the hardware register hfltCoeff. More...

UINTPTR	XV_hscaler_Get_HwReg_hfltCoeff_HighAddress (XV_hscaler *InstancePtr)
	This function gets the high address of the hardware register hfltCoeff. More...

u32	XV_hscaler_Get_HwReg_hfltCoeff_TotalBytes (XV_hscaler *InstancePtr)
	This function gets the total bytes of the hardware register hfltCoeff. More...

u32	XV_hscaler_Get_HwReg_hfltCoeff_BitWidth (XV_hscaler *InstancePtr)
	This function gets the bit width of the hardware register hfltCoeff. More...

u32	XV_hscaler_Get_HwReg_hfltCoeff_Depth (XV_hscaler *InstancePtr)
	This function gets the depth of the hardware register hfltCoeff. More...

u32	XV_hscaler_Write_HwReg_hfltCoeff_Words (XV_hscaler InstancePtr, int offset, int data, int length)
	This function writes words to the hardware register hfltCoeff. More...

u32	XV_hscaler_Read_HwReg_hfltCoeff_Words (XV_hscaler InstancePtr, int offset, int data, int length)
	This function reads words from the hardware register hfltCoeff. More...

u32	XV_hscaler_Write_HwReg_hfltCoeff_Bytes (XV_hscaler InstancePtr, int offset, char data, int length)
	This function writes bytes to the hardware register hfltCoeff. More...

u32	XV_hscaler_Read_HwReg_hfltCoeff_Bytes (XV_hscaler InstancePtr, int offset, char data, int length)
	This function reads bytes from the hardware register hfltCoeff. More...

UINTPTR	XV_hscaler_Get_HwReg_phasesH_V_BaseAddress (XV_hscaler *InstancePtr)
	This function gets the base address of the hardware register phasesH_V. More...

UINTPTR	XV_hscaler_Get_HwReg_phasesH_V_HighAddress (XV_hscaler *InstancePtr)
	function gets the high address of the hardware register phasesH_V. More...

u32	XV_hscaler_Get_HwReg_phasesH_V_TotalBytes (XV_hscaler *InstancePtr)
	This function gets the total bytes of the hardware register phasesH_V. More...

u32	XV_hscaler_Get_HwReg_phasesH_V_BitWidth (XV_hscaler *InstancePtr)
	This function gets the bit width of the hardware register phasesH_V. More...

u32	XV_hscaler_Get_HwReg_phasesH_V_Depth (XV_hscaler *InstancePtr)
	This function gets the depth of the hardware register phasesH_V. More...

u32	XV_hscaler_Write_HwReg_phasesH_V_Words (XV_hscaler InstancePtr, int offset, int data, int length)
	This function writes words to the hardware register phasesH_V. More...

u32	XV_hscaler_Read_HwReg_phasesH_V_Words (XV_hscaler InstancePtr, int offset, int data, int length)
	This function reads words from the hardware register phasesH_V. More...

u32	XV_hscaler_Write_HwReg_phasesH_V_Bytes (XV_hscaler InstancePtr, int offset, char data, int length)
	This function writes bytes to the hardware register phasesH_V. More...

u32	XV_hscaler_Read_HwReg_phasesH_V_Bytes (XV_hscaler InstancePtr, int offset, char data, int length)
	This function reads bytes from the hardware register phasesH_V. More...

void	XV_hscaler_InterruptGlobalEnable (XV_hscaler *InstancePtr)
	This function enables global interrupts. More...

void	XV_hscaler_InterruptGlobalDisable (XV_hscaler *InstancePtr)
	This function disables global interrupts. More...

void	XV_hscaler_InterruptEnable (XV_hscaler *InstancePtr, u32 Mask)
	This function enables specific interrupts. More...

void	XV_hscaler_InterruptDisable (XV_hscaler *InstancePtr, u32 Mask)
	This function disables specific interrupts. More...

void	XV_hscaler_InterruptClear (XV_hscaler *InstancePtr, u32 Mask)
	This function clears specific interrupts. More...

u32	XV_hscaler_InterruptGetEnabled (XV_hscaler *InstancePtr)
	This function gets the enabled interrupts. More...

u32	XV_hscaler_InterruptGetStatus (XV_hscaler *InstancePtr)
	This function gets the interrupt status. More...

Function Documentation

int XV_hscaler_CfgInitialize	(	XV_hscaler *	InstancePtr,
		XV_hscaler_Config *	ConfigPtr,
		UINTPTR	EffectiveAddr
	)

XV_hscaler_CfgInitialize - Initializes an XV_hscaler instance.

Parameters

InstancePtr	is a pointer to the XV_hscaler instance to be worked on.
ConfigPtr	points to the configuration structure.
EffectiveAddr	is the base address of the device.

Returns

XST_SUCCESS if initialization was successful.

Note: None. XV_hscaler_CfgInitialize - Initialize an XV_hscaler instance.

This function initializes an XV_hscaler instance using the provided configuration structure and effective base address. It copies the configuration, sets the base address, and marks the instance as ready for use.

Parameters

InstancePtr	Pointer to the XV_hscaler instance to be initialized.
ConfigPtr	Pointer to the configuration structure for the device.
EffectiveAddr	Physical base address of the device.

Returns

XST_SUCCESS if initialization was successful.

Preconditions:

InstancePtr must not be NULL.
ConfigPtr must not be NULL.
EffectiveAddr must not be NULL.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Referenced by XV_hscaler_Initialize().

void XV_hscaler_DisableAutoRestart ( XV_hscaler * InstancePtr )

XV_hscaler_DisableAutoRestart - Disable auto-restart mode.

Parameters

InstancePtr is a pointer to the XV_hscaler instance.

Returns: None

This function clears the auto-restart bit (bit 7) in the control register, disabling the hardware from automatically restarting after completing an operation.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, XV_hscaler::IsReady, and XV_HSCALER_CTRL_ADDR_AP_CTRL.

Referenced by XV_HScalerStop().

void XV_hscaler_EnableAutoRestart ( XV_hscaler * InstancePtr )

XV_hscaler_EnableAutoRestart - Enable auto-restart mode.

Parameters

InstancePtr is a pointer to the XV_hscaler instance.

Returns: None

This function sets the auto-restart bit (bit 7) in the control register, enabling the hardware to automatically restart after completing an operation.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, XV_hscaler::IsReady, and XV_HSCALER_CTRL_ADDR_AP_CTRL.

Referenced by XV_HScalerStart().

u32 XV_hscaler_Get_HwReg_ColorMode ( XV_hscaler * InstancePtr )

XV_hscaler_Get_HwReg_ColorMode - Get HWREG_COLORMODE register value.

Parameters

InstancePtr is a pointer to the XV_hscaler instance.

This function reads the HWREG_COLORMODE register from the HScaler hardware and returns its value.

Returns: Value of HWREG_COLORMODE register.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Referenced by XV_HScalerDbgReportStatus().

u32 XV_hscaler_Get_HwReg_ColorModeOut ( XV_hscaler * InstancePtr )

XV_hscaler_Get_HwReg_ColorModeOut - Get HWREG_COLORMODEOUT reg value.

Parameters

InstancePtr is a pointer to the XV_hscaler instance.

This function reads the HWREG_COLORMODEOUT register from the HScaler hardware and returns its value.

Returns: Value of HWREG_COLORMODEOUT register.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Referenced by XV_HScalerDbgReportStatus().

u32 XV_hscaler_Get_HwReg_Height ( XV_hscaler * InstancePtr )

XV_hscaler_Get_HwReg_Height - Get HWREG_HEIGHT register value.

Parameters

InstancePtr is a pointer to the XV_hscaler instance.

This function reads the HWREG_HEIGHT register from the HScaler hardware and returns its value.

Returns: Value of HWREG_HEIGHT register.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Referenced by XV_HScalerDbgReportStatus().

UINTPTR XV_hscaler_Get_HwReg_hfltCoeff_BaseAddress ( XV_hscaler * InstancePtr )

This function gets the base address of the hardware register hfltCoeff.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: The base address of the hardware register hfltCoeff.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Referenced by XV_HScalerDbgReportStatus().

u32 XV_hscaler_Get_HwReg_hfltCoeff_BitWidth ( XV_hscaler * InstancePtr )

This function gets the bit width of the hardware register hfltCoeff.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: The bit width of the hardware register hfltCoeff.

References XV_hscaler::IsReady.

u32 XV_hscaler_Get_HwReg_hfltCoeff_Depth ( XV_hscaler * InstancePtr )

This function gets the depth of the hardware register hfltCoeff.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: The depth of the hardware register hfltCoeff.

References XV_hscaler::IsReady.

UINTPTR XV_hscaler_Get_HwReg_hfltCoeff_HighAddress ( XV_hscaler * InstancePtr )

This function gets the high address of the hardware register hfltCoeff.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: The high address of the hardware register hfltCoeff.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

u32 XV_hscaler_Get_HwReg_hfltCoeff_TotalBytes ( XV_hscaler * InstancePtr )

This function gets the total bytes of the hardware register hfltCoeff.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: The total bytes of the hardware register hfltCoeff.

References XV_hscaler::IsReady.

UINTPTR XV_hscaler_Get_HwReg_phasesH_V_BaseAddress ( XV_hscaler * InstancePtr )

This function gets the base address of the hardware register phasesH_V.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: The base address of the hardware register phasesH_V.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

u32 XV_hscaler_Get_HwReg_phasesH_V_BitWidth ( XV_hscaler * InstancePtr )

This function gets the bit width of the hardware register phasesH_V.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: The bit width of the hardware register phasesH_V.

References XV_hscaler::IsReady.

u32 XV_hscaler_Get_HwReg_phasesH_V_Depth ( XV_hscaler * InstancePtr )

This function gets the depth of the hardware register phasesH_V.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: The depth of the hardware register phasesH_V.

References XV_hscaler::IsReady.

UINTPTR XV_hscaler_Get_HwReg_phasesH_V_HighAddress ( XV_hscaler * InstancePtr )

function gets the high address of the hardware register phasesH_V.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: The high address of the hardware register phasesH_V.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

u32 XV_hscaler_Get_HwReg_phasesH_V_TotalBytes ( XV_hscaler * InstancePtr )

This function gets the total bytes of the hardware register phasesH_V.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: The total bytes of the hardware register phasesH_V.

References XV_hscaler::IsReady.

u32 XV_hscaler_Get_HwReg_PixelRate ( XV_hscaler * InstancePtr )

This function gets the hardware register pixel rate.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: The value of the hardware register pixel rate.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Referenced by XV_HScalerDbgReportStatus().

u32 XV_hscaler_Get_HwReg_WidthIn ( XV_hscaler * InstancePtr )

XV_hscaler_Get_HwReg_WidthIn - Get HWREG_WIDTHIN register value.

Parameters

InstancePtr is a pointer to the XV_hscaler instance.

This function reads the HWREG_WIDTHIN register from the HScaler hardware and returns its value.

Returns: Value of HWREG_WIDTHIN register.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Referenced by XV_HScalerDbgReportStatus().

u32 XV_hscaler_Get_HwReg_WidthOut ( XV_hscaler * InstancePtr )

XV_hscaler_Get_HwReg_WidthOut - Get HWREG_WIDTHOUT register value.

Parameters

InstancePtr is a pointer to the XV_hscaler instance.

This function reads the HWREG_WIDTHOUT register from the HScaler hardware and returns its value.

Returns: Value of HWREG_WIDTHOUT register.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Referenced by XV_HScalerDbgReportStatus().

int XV_hscaler_Initialize	(	XV_hscaler *	InstancePtr,
		u16	DeviceId
	)

XV_hscaler_Initialize - Initializes an XV_hscaler instance.

This function looks up the hardware configuration for the device specified by DeviceId, and initializes the XV_hscaler instance pointed to by InstancePtr. If the configuration is not found, the function sets the instance's IsReady flag to 0 and returns XST_DEVICE_NOT_FOUND. Otherwise, it calls XV_hscaler_CfgInitialize to complete the initialization.

Parameters

InstancePtr	Pointer to the XV_hscaler instance to be initialized.
DeviceId	Unique device ID of the XV_hscaler core.

Returns

XST_SUCCESS if initialization was successful.
XST_DEVICE_NOT_FOUND if the device configuration could not be found.

References XV_hscaler_Config::BaseAddress, XV_hscaler::IsReady, XV_hscaler_CfgInitialize(), and XV_hscaler_LookupConfig().

Referenced by XV_HScalerInitialize().

void XV_hscaler_InterruptClear	(	XV_hscaler *	InstancePtr,
		u32	Mask
	)

This function clears specific interrupts.

Parameters

InstancePtr	Pointer to the XV_hscaler instance.
Mask	The mask of interrupts to clear.

Returns: None

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

void XV_hscaler_InterruptDisable	(	XV_hscaler *	InstancePtr,
		u32	Mask
	)

This function disables specific interrupts.

Parameters

InstancePtr	Pointer to the XV_hscaler instance.
Mask	The mask of interrupts to disable.

Returns: None

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

void XV_hscaler_InterruptEnable	(	XV_hscaler *	InstancePtr,
		u32	Mask
	)

This function enables specific interrupts.

Parameters

InstancePtr	Pointer to the XV_hscaler instance.
Mask	The mask of interrupts to enable.

Returns: None

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

u32 XV_hscaler_InterruptGetEnabled ( XV_hscaler * InstancePtr )

This function gets the enabled interrupts.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: The mask of enabled interrupts.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

u32 XV_hscaler_InterruptGetStatus ( XV_hscaler * InstancePtr )

This function gets the interrupt status.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: The mask of interrupt status.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

void XV_hscaler_InterruptGlobalDisable ( XV_hscaler * InstancePtr )

This function disables global interrupts.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: None

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

void XV_hscaler_InterruptGlobalEnable ( XV_hscaler * InstancePtr )

This function enables global interrupts.

Parameters

InstancePtr Pointer to the XV_hscaler instance.

Returns: None

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

u32 XV_hscaler_IsDone ( XV_hscaler * InstancePtr )

XV_hscaler_IsDone - Check if the HScaler operation is done.

Parameters

InstancePtr is a pointer to the XV_hscaler instance.

This function reads the control register and checks the ap_done bit (bit 1) to determine if the hardware has finished processing.

Returns: 1 if done, 0 otherwise.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, XV_hscaler::IsReady, and XV_HSCALER_CTRL_ADDR_AP_CTRL.

Referenced by XV_HScalerDbgReportStatus().

u32 XV_hscaler_IsIdle ( XV_hscaler * InstancePtr )

XV_hscaler_IsIdle - Check if the HScaler hardware is idle.

Parameters

InstancePtr is a pointer to the XV_hscaler instance.

This function reads the control register and checks the ap_idle bit (bit 2) to determine if the hardware is idle.

Returns: 1 if idle, 0 otherwise.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, XV_hscaler::IsReady, and XV_HSCALER_CTRL_ADDR_AP_CTRL.

Referenced by XV_HScalerDbgReportStatus().

u32 XV_hscaler_IsReady ( XV_hscaler * InstancePtr )

XV_hscaler_IsReady - Check if HScaler is ready for next input.

Parameters

InstancePtr is a pointer to the XV_hscaler instance.

This function reads the control register and checks the ap_start bit (bit 0) to determine if the hardware is ready for the next input. Returns 1 if ready, 0 otherwise.

Returns: 1 if ready, 0 otherwise.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, XV_hscaler::IsReady, and XV_HSCALER_CTRL_ADDR_AP_CTRL.

Referenced by XV_HScalerDbgReportStatus().

XV_hscaler_Config* XV_hscaler_LookupConfig ( u16 DeviceId )

This function looks up the configuration for a device instance by its DeviceId.

Parameters

DeviceId is the unique device ID of the XV_hscaler instance.

Returns: A pointer to the configuration structure if found, or NULL otherwise.

Note: None.

Referenced by XV_hscaler_Initialize().

u32 XV_hscaler_Read_HwReg_hfltCoeff_Bytes	(	XV_hscaler *	InstancePtr,
		int	offset,
		char *	data,
		int	length
	)

This function reads bytes from the hardware register hfltCoeff.

Parameters

InstancePtr	Pointer to the XV_hscaler instance.
offset	The offset to start reading.
data	Pointer to the buffer to store the read data.
length	The number of bytes to read.

Returns: The number of bytes read.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

u32 XV_hscaler_Read_HwReg_hfltCoeff_Words	(	XV_hscaler *	InstancePtr,
		int	offset,
		int *	data,
		int	length
	)

This function reads words from the hardware register hfltCoeff.

Parameters

InstancePtr	Pointer to the XV_hscaler instance.
offset	The offset to start reading.
data	Pointer to the buffer to store the read data.
length	The number of words to read.

Returns: The number of words read.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

u32 XV_hscaler_Read_HwReg_phasesH_V_Bytes	(	XV_hscaler *	InstancePtr,
		int	offset,
		char *	data,
		int	length
	)

This function reads bytes from the hardware register phasesH_V.

Parameters

InstancePtr	Pointer to the XV_hscaler instance.
offset	The offset to start reading.
data	Pointer to the buffer to store the read data.
length	The number of bytes to read.

Returns: The number of bytes read.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

u32 XV_hscaler_Read_HwReg_phasesH_V_Words	(	XV_hscaler *	InstancePtr,
		int	offset,
		int *	data,
		int	length
	)

This function reads words from the hardware register phasesH_V.

Parameters

InstancePtr	Pointer to the XV_hscaler instance.
offset	The offset to start reading.
data	Pointer to the buffer to store the read data.
length	The number of words to read.

Returns: The number of words read.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

void XV_hscaler_Set_HwReg_ColorMode	(	XV_hscaler *	InstancePtr,
		u32	Data
	)

XV_hscaler_Set_HwReg_ColorMode - Set HWREG_COLORMODE register.

Parameters

InstancePtr	is a pointer to the XV_hscaler instance.
Data	is the value to write to HWREG_COLORMODE register.

Returns: None This function writes the specified value to the HWREG_COLORMODE register of the HScaler hardware.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Referenced by XV_HScalerSetup().

void XV_hscaler_Set_HwReg_ColorModeOut	(	XV_hscaler *	InstancePtr,
		u32	Data
	)

XV_hscaler_Set_HwReg_ColorModeOut - Set HWREG_COLORMODEOUT reg.

Parameters

InstancePtr	is a pointer to the XV_hscaler instance.
Data	is the value to write to HWREG_COLORMODEOUT reg.

Returns: None This function writes the specified value to the HWREG_COLORMODEOUT register of the HScaler hardware.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Referenced by XV_HScalerSetup().

void XV_hscaler_Set_HwReg_Height	(	XV_hscaler *	InstancePtr,
		u32	Data
	)

XV_hscaler_Set_HwReg_Height - Set the HWREG_HEIGHT register.

Parameters

InstancePtr	is a pointer to the XV_hscaler instance.
Data	is the value to write to HWREG_HEIGHT register.

Returns: None This function writes the specified value to the HWREG_HEIGHT register of the HScaler hardware.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Referenced by XV_HScalerSetup().

void XV_hscaler_Set_HwReg_PixelRate	(	XV_hscaler *	InstancePtr,
		u32	Data
	)

This function sets the hardware register pixel rate.

Parameters

InstancePtr	Pointer to the XV_hscaler instance.
Data	The value to set in the hardware register pixel rate.

Returns: None

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Referenced by XV_HScalerSetup().

void XV_hscaler_Set_HwReg_WidthIn	(	XV_hscaler *	InstancePtr,
		u32	Data
	)

XV_hscaler_Set_HwReg_WidthIn - Set HWREG_WIDTHIN register.

Parameters

InstancePtr	is a pointer to the XV_hscaler instance.
Data	is the value to write to HWREG_WIDTHIN register.

Returns: None This function writes the specified value to the HWREG_WIDTHIN register of the HScaler hardware.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Referenced by XV_HScalerSetup().

void XV_hscaler_Set_HwReg_WidthOut	(	XV_hscaler *	InstancePtr,
		u32	Data
	)

XV_hscaler_Set_HwReg_WidthOut - Set HWREG_WIDTHOUT register.

Parameters

InstancePtr	is a pointer to the XV_hscaler instance.
Data	is the value to write to HWREG_WIDTHOUT register.

Returns: None This function writes the specified value to the HWREG_WIDTHOUT register of the HScaler hardware.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Referenced by XV_HScalerSetup().

void XV_hscaler_Start ( XV_hscaler * InstancePtr )

XV_hscaler_Start - Start the HScaler hardware.

Parameters

InstancePtr is a pointer to the XV_hscaler instance.

Returns: None This function sets the ap_start bit in the control register to start the hardware. It preserves the auto-restart bit.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, XV_hscaler::IsReady, and XV_HSCALER_CTRL_ADDR_AP_CTRL.

Referenced by XV_HScalerStart().

u32 XV_hscaler_Write_HwReg_hfltCoeff_Bytes	(	XV_hscaler *	InstancePtr,
		int	offset,
		char *	data,
		int	length
	)

This function writes bytes to the hardware register hfltCoeff.

Parameters

InstancePtr	Pointer to the XV_hscaler instance.
offset	The offset to start writing.
data	Pointer to the data to write.
length	The number of bytes to write.

Returns: The number of bytes written.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

u32 XV_hscaler_Write_HwReg_hfltCoeff_Words	(	XV_hscaler *	InstancePtr,
		int	offset,
		int *	data,
		int	length
	)

This function writes words to the hardware register hfltCoeff.

Parameters

InstancePtr	Pointer to the XV_hscaler instance.
offset	The offset to start writing.
data	Pointer to the data to write.
length	The number of words to write.

Returns: The number of words written.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

u32 XV_hscaler_Write_HwReg_phasesH_V_Bytes	(	XV_hscaler *	InstancePtr,
		int	offset,
		char *	data,
		int	length
	)

This function writes bytes to the hardware register phasesH_V.

Parameters

InstancePtr	Pointer to the XV_hscaler instance.
offset	The offset to start writing.
data	Pointer to the data to write.
length	The number of bytes to write.

Returns: The number of bytes written.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

u32 XV_hscaler_Write_HwReg_phasesH_V_Words	(	XV_hscaler *	InstancePtr,
		int	offset,
		int *	data,
		int	length
	)

This function writes words to the hardware register phasesH_V.

Parameters

InstancePtr	Pointer to the XV_hscaler instance.
offset	The offset to start writing.
data	Pointer to the data to write.
length	The number of words to write.

Returns: The number of words written.

References XV_hscaler_Config::BaseAddress, XV_hscaler::Config, and XV_hscaler::IsReady.

Data Structures

Functions

Function Documentation