function_prototype.c File Reference

Overview

MODIFICATION HISTORY:

Ver   Who    Date     Changes



X.XX  XX     YY/MM/DD
1.00  RHe    19/09/20 Initial release.

Functions
u32	SetupDSI (void)
	This function programs MIPI DSI SS with the required timing paramters. More...
u32	InitializeCsiRxSs (void)
	This function programs MIPI CSI SS with the required timing paramters. More...
void	EnableCSI (void)
void	InitDSI (void)
	This function programs MIPI DSI SS with the required timing paramters. More...
void	DisableCSI (void)
void	DisableDSI (void)
void	resetIp (void)
	This function resets IPs. More...
int	demosaic ()
	This function programs colour space converter with the given width and height. More...
void	resetVIP (void)
int	InitIIC ()
	This function writes, reads, and verifies the data to the IIC EEPROM. More...
void	SendHandler (XIic *InstancePtr)
	This Send handler is called asynchronously from an interrupt context and indicates that data in the specified buffer has been sent. More...
void	ReceiveHandler (XIic *InstancePtr)
	This Receive handler is called asynchronously from an interrupt context and indicates that data in the specified buffer has been Received. More...
void	StatusHandler (XIic *InstancePtr, int Event)
	This Status handler is called asynchronously from an interrupt context and indicates the events that have occurred. More...
int	AdapterWriteData (u16 ByteCount)
	This function writes a buffer of data to the Adapter IIC. More...
int	RunVDMA (XAxiVdma *InstancePtr, int DeviceId, int hsize, int vsize, int buf_base_addr, int number_frame_count, int enable_frm_cnt_intr)
	RunVDMA API. More...
s32	WaitForCompletion (s32 VdmaChannel, u32 *VdmaBaseAddr)
	This function wait until the DMA channel halts. More...
void	ResetVDMA ()
	This function ResetVDMA. More...

Function Documentation

int AdapterWriteData

(

u16

ByteCount

)

This function writes a buffer of data to the Adapter IIC.

Parameters

ByteCount

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

Returns

XST_SUCCESS if successful else XST_FAILURE.

Note

The Byte count should not exceed the page size of the EEPROM as noted by the constant PAGE_SIZE.

int demosaic

(

)

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 main().

void DisableCSI

(

void

)

• This function disables MIPI CSI IP

  • • Returns

      None.

      Note

      None.

Referenced by resetIp().

void DisableDSI

(

void

)

• This function disables MIPI DSI SS.

  • • Returns

      None.

      Note

      None.

Referenced by resetIp().

void EnableCSI

(

void

)

• This function enables MIPI CSI IP

  • • Returns

      None.

      Note

      None.

Referenced by main().

void InitDSI

(

void

)

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

Returns

None.

Note

None.

Referenced by main().

u32 InitializeCsiRxSs

(

void

)

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

Returns

None.

Note

None.

Referenced by main().

int InitIIC

(

)

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

It does the write as a single page write, performs a buffered read.

Parameters

None.

Returns

XST_SUCCESS if successful else XST_FAILURE.

Note

None.

Referenced by main().

void ReceiveHandler

(

XIic *

InstancePtr

)

This Receive handler is called asynchronously from an interrupt context and indicates that data in the specified buffer has been Received.

Parameters

InstancePtr

is not used, but contains a pointer to the IIC device driver instance which the handler is being called for.

Returns

None.

Note

None.

Referenced by SetupIICIntrHandlers().

void resetIp

(

void

)

This function resets IPs.

Returns

None.

Note

None.

References DisableCSI(), DisableDSI(), and resetVIP().

Referenced by main().

void ResetVDMA

(

)

This function ResetVDMA.

Parameters

None

Returns

None

Note

None.

void resetVIP

(

void

)

• * This function resets and releases IPs
  • *
    • *

      Returns

      None.

      • *
        • *

      Note

      None.

      • *

Referenced by resetIp().

int RunVDMA	(	XAxiVdma *	InstancePtr,
		int	DeviceId,
		int	hsize,
		int	vsize,
		int	buf_base_addr,
		int	number_frame_count,
		int	enable_frm_cnt_intr
	)

RunVDMA API.

This API is the interface between application and other API. When application will call this API with right argument, This API will call rest of the API to configure the read and write path of VDMA,based on ID. After that it will start both the read and write path of VDMA

Parameters

InstancePtr	is the handle to XAxiVdma data structure.
DeviceId	is the device ID of current VDMA
hsize	is the horizontal size of the frame. It will be in Pixels. The actual size of frame will be calculated by multiplying this with tdata width.
vsize	is the Vertical size of the frame.
buf_base_addr	is the buffer address where frames will be written and read by VDMA.
number_frame_count	specifies after how many frames the interrupt should come.
enable_frm_cnt_intr	is for enabling frame count interrupt when set to 1.

Returns

• XST_SUCCESS if example finishes successfully
• XST_FAILURE if example fails.

void SendHandler

(

XIic *

InstancePtr

)

This Send handler is called asynchronously from an interrupt context and indicates that data in the specified buffer has been sent.

Parameters

InstancePtr

is not used, but contains a pointer to the IIC device driver instance which the handler is being called for.

Returns

None.

Note

None.

Referenced by SetupIICIntrHandlers().

u32 SetupDSI

(

void

)

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

Returns

None.

Note

None.

Referenced by main().

void StatusHandler	(	XIic *	InstancePtr,
		int	Event
	)

This Status handler is called asynchronously from an interrupt context and indicates the events that have occurred.

Parameters

InstancePtr	is a pointer to the IIC driver instance for which the handler is being called for.
Event	indicates the condition that has occurred.

Returns

None.

Note

None.

Referenced by SetupIICIntrHandlers().

s32 WaitForCompletion	(	s32	VdmaChannel,
		u32 *	VdmaBaseAddr
	)

This function wait until the DMA channel halts.

Parameters

VdmaChannel	specifes VdmaChannel is MM2S or S2MM .
VdmaBaseAddr	VDMA base address

Returns

MM2S_HALT_SUCCESS, S2MM_HALT_SUCCESS in success MM2S_HALT_FAILURE, S2MM_HALT_FAILURE on failure

Note

None.