pipeline_program.c File Reference

Overview

This file contains the video pipe line configuration, Sensor configuration and its programming as per the resolution selected by user.

Please see pipeline_program.h for more details.

MODIFICATION HISTORY:

Ver   Who    Date     Changes



1.00  pg    12/07/17 Initial release.

Functions
int	SensorWriteData (u16 ByteCount)
	This function writes a buffer of data to the IIC serial sensor. More...
int	SensorReadData (u8 *BufferPtr, u16 ByteCount)
	This function reads data from the IIC serial Camera Sensor into a specified buffer. More...
int	SetupCameraSensor (void)
	This function setup Camera sensor programming wrt resolution selected. More...
int	InitIIC (void)
	This function initializes IIC controller and gets config parameters. More...
void	SetupIICIntrHandlers (void)
	This function sets send, receive and error handlers for IIC interrupts. More...
void	ConfigCSC (u32 width, u32 height)
	This function programs colour space converter with the given width and height. More...
void	ConfigGammaLut (u32 width, u32 height)
	This function programs colour space converter with the given width and height. More...
void	ConfigDemosaic (u32 width, u32 height)
	This function programs colour space converter with the given width and height. More...
void	DisableImageProcessingPipe (void)
	This function disables Demosaic, GammaLut and VProcSS IPs. More...
void	InitImageProcessingPipe (void)
	This function Initializes Image Processing blocks wrt to selected resolution. More...
void	EnableCSI (void)
	This function enables MIPI CSI IP. More...
void	DisableCSI (void)
	This function disables MIPI CSI IP. More...
int	StartSensor (void)
	This function starts camera sensor to transmit captured video. More...
void	InitVDMA (XAxiVdma *VdmaInst, u32 bpp, u32 FrameBase)
	This function initializes the vdma IP for give configuration. More...
void	InitCSC2TPG_Vdma (void)
	This function provides information to program vdma wrt BPC. More...
void	InitVprocSs_Scaler (int count)
	This function initializes and configures VProcSS IP for scalar mode with the given input and output width and height values. More...
void	ResetVprocSs_Scaler (void)
	This function resets VProcSS_scalar IP. More...
void	EnableDSI (void)
	This function enables MIPI DSI SS. More...
void	DisableDSI (void)
	This function disables MIPI DSI SS. More...
void	InitDSI (void)
	This function programs MIPI DSI SS with the required timing paramters. More...
u32	SetupDSI (void)
	This function initializes MIPI DSI SS and gets config parameters. More...
void	SelectDSIOuptut (void)
	This function programs GPIO to 0 to select tready from MIPI DSI SS. More...
void	SelectHDMIOutput (void)
	This function programs GPIO to '1' to select tready from HDMI. More...
void	DisableScaler (void)
	This function stops VProc_SS scalar IP. More...
void	DisableTPGVdma (void)
	This function stops VDMA IP transactions. More...
u32	InitTreadyGpio (void)
	This function initializes GPIO IP for tready selection and gets config parameters. More...
u32	InitializeCsiRxSs (void)
	This function initializes MIPI CSI2 RX SS and gets config parameters. More...
XVidC_ColorDepth	GetColorDepth (u32 CsiDataFormat)
	This function returns selected colour depth of MIPI CSI2 RX SS. More...
void	SetColorDepth (void)
	This function sets colour depth value getting from MIPI CSI2 RX SS. More...
u32	InitializeVdma (void)
	This function initializes Axi VDMA IP and gets config parameters. More...
void	PrintPipeConfig (void)
	This function prints the video pipeline information. More...

Function Documentation

void ConfigCSC	(	u32	width,
		u32	height
	)

This function programs colour space converter with the given width and height.

Parameters

width	is Hsize of a packet in pixels.
height	is number of lines of a packet.

Returns

None.

Note

None.

Referenced by InitImageProcessingPipe().

void ConfigDemosaic	(	u32	width,
		u32	height
	)

This function programs colour space converter with the given width and height.

Parameters

width	is Hsize of a packet in pixels.
height	is number of lines of a packet.

Returns

None.

Note

None.

Referenced by InitImageProcessingPipe().

void ConfigGammaLut	(	u32	width,
		u32	height
	)

This function programs colour space converter with the given width and height.

Parameters

width	is Hsize of a packet in pixels.
height	is number of lines of a packet.

Returns

None.

Note

None.

Referenced by InitImageProcessingPipe().

void DisableCSI

(

void

)

This function disables MIPI CSI IP.

Returns

None.

Note

None.

References XCsiSs_Reset().

void DisableDSI

(

void

)

This function disables MIPI DSI SS.

Returns

None.

Note

None.

void DisableImageProcessingPipe

(

void

)

This function disables Demosaic, GammaLut and VProcSS IPs.

Returns

None.

Note

None.

void DisableScaler

(

void

)

This function stops VProc_SS scalar IP.

Returns

None.

Note

None.

void DisableTPGVdma

(

void

)

This function stops VDMA IP transactions.

Returns

None.

Note

None.

void EnableCSI

(

void

)

This function enables MIPI CSI IP.

Returns

None.

Note

None.

References XCsiSs_Activate(), XCsiSs_Configure(), and XCsiSs_Reset().

void EnableDSI

(

void

)

This function enables MIPI DSI SS.

Returns

None.

Note

None.

XVidC_ColorDepth GetColorDepth

(

u32

CsiDataFormat

)

This function returns selected colour depth of MIPI CSI2 RX SS.

Parameters

CsiDataFormat

is video data format

Returns

ColorDepth returns colour depth value.

Note

None.

Referenced by SetColorDepth().

void InitCSC2TPG_Vdma

(

void

)

This function provides information to program vdma wrt BPC.

Returns

None.

Note

None.

References InitVDMA().

Referenced by main().

void InitDSI

(

void

)

This function programs MIPI DSI SS with the required timing paramters.

Returns

None.

Note

None.

u32 InitializeCsiRxSs

(

void

)

This function initializes MIPI CSI2 RX SS and gets config parameters.

This function programs MIPI CSI SS with the required timing paramters.

Returns

XST_SUCCESS if successful or else XST_FAILURE.

Note

None.

References XCsiSs_Config::BaseAddr, XCsiSs_CfgInitialize(), and XCsiSs_LookupConfig().

u32 InitializeVdma

(

void

)

This function initializes Axi VDMA IP and gets config parameters.

Returns

XST_SUCCESS if successful or else XST_FAILURE.

Note

None.

Referenced by main().

int InitIIC

(

void

)

This function initializes IIC controller and gets config parameters.

This function writes, reads, and verifies the data to the IIC EEPROM.

Returns

XST_SUCCESS if successful else XST_FAILURE.

Note

None.

void InitImageProcessingPipe

(

void

)

This function Initializes Image Processing blocks wrt to selected resolution.

Returns

None.

Note

None.

References ConfigCSC(), ConfigDemosaic(), and ConfigGammaLut().

Referenced by main().

u32 InitTreadyGpio

(

void

)

This function initializes GPIO IP for tready selection and gets config parameters.

Returns

XST_SUCCESS if successful or else XST_FAILURE.

Note

None.

Referenced by main().

void InitVDMA	(	XAxiVdma *	VdmaInst,
		u32	bpp,
		u32	FrameBase
	)

This function initializes the vdma IP for give configuration.

Parameters

VdmaInst	is the pointer to XAxiVdma instance
bpp	is the bits per pixel
FrameBase	is the address of the frame buffer

Returns

None.

Note

None.

Referenced by InitCSC2TPG_Vdma().

void InitVprocSs_Scaler

(

int

count

)

This function initializes and configures VProcSS IP for scalar mode with the given input and output width and height values.

Parameters

count

is a flag value to initialize IP only once.

Returns

None.

Note

None.

void PrintPipeConfig

(

void

)

This function prints the video pipeline information.

Returns

None.

Note

None.

Referenced by main().

void ResetVprocSs_Scaler

(

void

)

This function resets VProcSS_scalar IP.

Returns

None.

Note

None.

void SelectDSIOuptut

(

void

)

This function programs GPIO to 0 to select tready from MIPI DSI SS.

Returns

None.

Note

None.

Referenced by main().

void SelectHDMIOutput

(

void

)

This function programs GPIO to '1' to select tready from HDMI.

Returns

None.

Note

None.

Referenced by main().

int SensorReadData	(	u8 *	BufferPtr,
		u16	ByteCount
	)

This function reads data from the IIC serial Camera Sensor into a specified buffer.

Parameters

BufferPtr	contains the address of the data buffer to be filled.
ByteCount	contains the number of bytes in the buffer to be read.

Returns

XST_SUCCESS if successful else XST_FAILURE.

Note

None.

References SensorWriteData().

Referenced by SetupCameraSensor().

int SensorWriteData

(

u16

ByteCount

)

This function writes a buffer of data to the IIC serial sensor.

Parameters

ByteCount

is the number of bytes in the buffer to be written.

Returns

XST_SUCCESS if successful else XST_FAILURE.

Note

None.

Referenced by SensorReadData(), SetupCameraSensor(), and StartSensor().

void SetColorDepth

(

void

)

This function sets colour depth value getting from MIPI CSI2 RX SS.

Returns

None.

Note

None.

References XCsiSs::Config, GetColorDepth(), and XCsiSs_Config::PixelFormat.

Referenced by main().

int SetupCameraSensor

(

void

)

This function setup Camera sensor programming wrt resolution selected.

Returns

XST_SUCCESS if successful else XST_FAILURE.

Note

None.

References SensorReadData(), and SensorWriteData().

Referenced by main().

u32 SetupDSI

(

void

)

This function initializes MIPI DSI SS and gets config parameters.

This function programs MIPI DSI SS with the required timing paramters.

Returns

None.

Note

None.

void SetupIICIntrHandlers

(

void

)

This function sets send, receive and error handlers for IIC interrupts.

Returns

None.

Note

None.

References ReceiveHandler(), SendHandler(), and StatusHandler().

int StartSensor

(

void

)

This function starts camera sensor to transmit captured video.

Returns

XST_SUCCESS if successful else XST_FAILURE.

Note

None.

References SensorWriteData().

Referenced by main().