isi.h File Reference

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Data Structures
struct	ISI_Descriptors
struct	ISI_FrameBufferDescriptors
struct	ISI_Y2R
struct	ISI_R2Y

Macros
#define	YUV_INPUT   0
#define	RGB_INPUT   1
#define	GRAYSCALE_INPUT   2

Functions
void	ISI_Enable (void)
	Enable ISI.
void	ISI_Disable (void)
	Disable ISI.
void	ISI_DmaChannelEnable (uint32_t channel)
	Enable ISI Dma channel.
void	ISI_DmaChannelDisable (uint32_t channel)
	Disable ISI Dma channel.
void	ISI_EnableInterrupt (uint32_t flag)
	Enable ISI interrupt.
void	ISI_DisableInterrupt (uint32_t flag)
	Disable ISI interrupt.
void	ISI_CodecPathFull (void)
	Enable Codec path for capture next frame.
void	ISI_SetFrameRate (uint32_t frame)
	Set frame rate.
uint8_t	ISI_BytesForOnePixel (uint8_t bmpRgb)
	Get the number of byte per pixels.
void	ISI_Reset (void)
	Reset ISI.
void	ISI_Init (pIsi_Video pVideo)
uint32_t	ISI_StatusRegister (void)
	Return ISI status register.
void	ISI_SetBlank (uint8_t hBlank, uint8_t vBlank)
	Set the windows blank.
void	ISI_SetSensorSize (uint32_t hSize, uint32_t vSize)
	Set vertical and horizontal Size of the Image Sensor.
void	ISI_RgbPixelMapping (uint32_t wRgbPixelMapping)
	Defines RGB pattern when RGB_MODE is set to 1.
void	ISI_RgbSwapMode (uint32_t swapMode)
	Enables RGB swap.
void	ISI_YCrCbFormat (uint32_t wYuvSwapMode)
	Defines YCrCb swap format.
void	ISI_setGrayScaleMode (uint32_t wPixelFormat)
	Input image is assumed to be grayscale-coded.
void	ISI_setInputStream (uint32_t wStreamMode)
	Set data stream format.
void	ISI_setPreviewSize (uint32_t hSize, uint32_t vSize)
	Set preview size.
void	ISI_calcScalerFactor (void)
	calculate scaler factor automatically.
void	ISI_setDmaInPreviewPath (uint32_t baseFrameBufDesc, uint32_t dmaCtrl, uint32_t frameBufferStartAddr)
	Configure DMA for preview path.
void	ISI_setDmaInCodecPath (uint32_t baseFrameBufDesc, uint32_t dmaCtrl, uint32_t frameBufferStartAddr)
	Configure DMA for Codec path.
void	ISI_SetMatrix4Yuv2Rgb (ISI_Y2R *yuv2rgb)
	ISI set matrix for YUV to RGB color space for preview path.
void	ISI_SetMatrix4Rgb2Yuv (ISI_R2Y *rgb2yuv)
	ISI set matrix for RGB to YUV color space for codec path.

Function Documentation

ISI_BytesForOnePixel()

uint8_t ISI_BytesForOnePixel

(

uint8_t

bmpRgb

)

Get the number of byte per pixels.

Parameters

bmpRgb

BMP type can be YUV or RGB

ISI_calcScalerFactor()

void ISI_calcScalerFactor

(

void

)

calculate scaler factor automatically.

Note

The sensor size and preview size for LCD was configured before this setting.

ISI_DisableInterrupt()

void ISI_DisableInterrupt

(

uint32_t

flag

)

Disable ISI interrupt.

Parameters

flag	of interrupt to disable

ISI_DmaChannelDisable()

void ISI_DmaChannelDisable

(

uint32_t

channel

)

Disable ISI Dma channel.

Parameters

channel

to be disabled

ISI_DmaChannelEnable()

void ISI_DmaChannelEnable

(

uint32_t

channel

)

Enable ISI Dma channel.

Parameters

channel

to be enabled

ISI_EnableInterrupt()

void ISI_EnableInterrupt

(

uint32_t

flag

)

Enable ISI interrupt.

Parameters

flag	of interrupt to enable

ISI_RgbPixelMapping()

void ISI_RgbPixelMapping

(

uint32_t

wRgbPixelMapping

)

Defines RGB pattern when RGB_MODE is set to 1.

Parameters

wRgbPixelMapping

RGB pattern

ISI_RgbSwapMode()

void ISI_RgbSwapMode

(

uint32_t

swapMode

)

Enables RGB swap.

Parameters

swapMode

0: D7-R7, 1: D0-R7

ISI_SetBlank()

void ISI_SetBlank	(	uint8_t	hBlank,
		uint8_t	vBlank
	)

Set the windows blank.

Parameters

hBlank	pixel clock periods to wait before the beginning of a line.
vBlank	lines are skipped at the beginning of the frame.

ISI_setDmaInCodecPath()

void ISI_setDmaInCodecPath	(	uint32_t	baseFrameBufDesc,
		uint32_t	dmaCtrl,
		uint32_t	frameBufferStartAddr
	)

Configure DMA for Codec path.

Parameters

baseFrameBufDesc	Preview Descriptor Address.
dmaCtrl	DMA Preview Control.
frameBufferStartAddr	DMA Preview Base Address.

ISI_setDmaInPreviewPath()

void ISI_setDmaInPreviewPath	(	uint32_t	baseFrameBufDesc,
		uint32_t	dmaCtrl,
		uint32_t	frameBufferStartAddr
	)

Configure DMA for preview path.

Parameters

baseFrameBufDesc	Preview Descriptor Address.
dmaCtrl	DMA Preview Control.
frameBufferStartAddr	DMA Preview Base Address.

ISI_SetFrameRate()

void ISI_SetFrameRate

(

uint32_t

frame

)

Set frame rate.

Parameters

frame

frame rate capture

ISI_setGrayScaleMode()

void ISI_setGrayScaleMode

(

uint32_t

wPixelFormat

)

Input image is assumed to be grayscale-coded.

Parameters

wPixelFormat

0: 2 pixels per word, 1:1 pixel per word.

ISI_setInputStream()

void ISI_setInputStream

(

uint32_t

wStreamMode

)

Set data stream format.

Parameters

wStreamMode

0: YUV input, 1: RGB 8:8:8/5:6:5 input

ISI_SetMatrix4Rgb2Yuv()

void ISI_SetMatrix4Rgb2Yuv

(

ISI_R2Y *

rgb2yuv

)

ISI set matrix for RGB to YUV color space for codec path.

Parameters

rgb2yuv

structure of RGB to YUV parameters.

ISI_SetMatrix4Yuv2Rgb()

void ISI_SetMatrix4Yuv2Rgb

(

ISI_Y2R *

yuv2rgb

)

ISI set matrix for YUV to RGB color space for preview path.

Parameters

yuv2rgb

structure of YUV to RBG parameters.

ISI_setPreviewSize()

void ISI_setPreviewSize	(	uint32_t	hSize,
		uint32_t	vSize
	)

Set preview size.

Parameters

hSize	Horizontal Preview size (640 max only in RGB mode).
vSize	Vertical Preview size (480 max only in RGB mode).

ISI_SetSensorSize()

void ISI_SetSensorSize	(	uint32_t	hSize,
		uint32_t	vSize
	)

Set vertical and horizontal Size of the Image Sensor.

Parameters

hSize	Horizontal size of the Image sensor [0..2047].
vSize	Vertical size of the Image sensor [0..2047].

ISI_StatusRegister()

uint32_t ISI_StatusRegister

(

void

)

Return ISI status register.

Returns

Status of ISI register

ISI_YCrCbFormat()

void ISI_YCrCbFormat

(

uint32_t

wYuvSwapMode

)

Defines YCrCb swap format.

Parameters

wYuvSwapMode

YUV Swap format