Introduction

Files
file	csl_dssWbPipe.h
	DSS Write Back Pipe CSL FL interface file.

Data Structures
struct	CSL_DssWbPipeCfg
	Configuration for DSS Write Back Pipe. More...

struct	CSL_DssWbPipeDmaCfg
	DSS Write Back Pipe DMA related Config parameters. More...

struct	CSL_DssWbPipeMFlagCfg
	DSS Write Back Pipe MFLAG Config parameters. More...

Functions
int32_t	CSL_dssWbPipeSetConfig (CSL_dss_wbRegs wbRegs, const CSL_DssWbPipeCfg wbCfg)
	Configure the Write Back Pipe. More...

void	CSL_dssWbPipeSetDmaConfig (CSL_dss_wbRegs wbRegs, const CSL_DssWbPipeDmaCfg dmaCfg)
	Configure the Write Back Pipe DMA parameters. More...

int32_t	CSL_dssWbPipeCheckFmt (uint32_t fvid2Fmt)
	Checks if the destination Fvid2_format is a valid format supported by writeback pipeline. More...

void	CSL_dssWbPipeSetCSCCoeff (CSL_dss_wbRegs wbRegs, const CSL_DssCscCoeff coeff)
	Configure the coefficients for Color Space Conversion. More...

void	CSL_dssWbPipeSetBuffAddr (CSL_dss_wbRegs *wbRegs, uint32_t field, uint64_t baseAddrRGBY, uint64_t baseAddrUV)
	Set the write back buffer address. More...

void	CSL_dssWbPipeEnable (CSL_dss_wbRegs *wbRegs, uint32_t enable)
	Enable the DSS Write Back Pipe. More...

void	CSL_dssWbPipeSetMflagConfig (CSL_dss_wbRegs wbRegs, const CSL_DssWbPipeMFlagCfg mflagCfg)
	Set the MFLAG configuration. More...

void	CSL_dssWbPipeSetGoBit (CSL_dss_wbRegs *wbRegs)
	GO Command for the WB pipeline. It is used to synchronize the pipelines associated with the WB output. More...

int32_t	CSL_dssWbGetPitchFactors (uint32_t fvid2Fmt, uint32_t *pitchValArr)
	This function populates the pitchValArr with the Bits Per Pixel for the provided data format. More...

static void	CSL_dssWbPipeCfgInit (CSL_DssWbPipeCfg *wbCfg)
	CSL_DssWbPipeCfg structure init function. More...

static void	CSL_dssWbPipeDmaCfgInit (CSL_DssWbPipeDmaCfg *dmaCfg)
	CSL_DssWbPipeDmaCfg structure init function. More...

static void	CSL_dssWbPipeMFlagCfgInit (CSL_DssWbPipeMFlagCfg *mflagCfg)
	CSL_DssWbPipeMFlagCfg structure init function. More...

DSS Write Back Pipe YUV Alignment
DSS Write Back Pipe alignment for unpacked YUV data
#define	CSL_DSS_WB_PIPE_YUV_ALIGN_LSB ((uint32_t) CSL_DSS_WB_ATTRIBUTES2_YUV_ALIGN_VAL_LSB)
	Data is LSB aligned (MSB unused) More...

#define	CSL_DSS_WB_PIPE_YUV_ALIGN_MSB ((uint32_t) CSL_DSS_WB_ATTRIBUTES2_YUV_ALIGN_VAL_MSB)
	Data is MSB aligned (LSB unused) More...

DSS Write Back Pipe Scaler Value

#define	CSL_DSS_WB_PIPE_SC_DISABLED ((uint32_t) CSL_DSS_WB_ATTRIBUTES_RESIZEENABLE_VAL_RESIZEPROC)
	Scaler is disabled. More...

#define	CSL_DSS_WB_PIPE_SC_ENABLED_H ((uint32_t) CSL_DSS_WB_ATTRIBUTES_RESIZEENABLE_VAL_HRESIZE)
	Horizontal scaling is enabled. More...

#define	CSL_DSS_WB_PIPE_SC_ENABLED_V ((uint32_t) CSL_DSS_WB_ATTRIBUTES_RESIZEENABLE_VAL_VRESIZE)
	Vertical scaling is enabled. More...

#define	CSL_DSS_WB_PIPE_SC_ENABLED_HV ((uint32_t) CSL_DSS_WB_ATTRIBUTES_RESIZEENABLE_VAL_HVRESIZE)
	Both horizontal and vertical scaling is enabled. More...

DSS Write Back Pipe Priority Value

#define	CSL_DSS_WB_PIPE_PRIORITY_NORMAL ((uint32_t) CSL_DSS_WB_ATTRIBUTES_ARBITRATION_VAL_NORMALPRIO)
	Priority of write back pipeline is normal. More...

#define	CSL_DSS_WB_PIPE_PRIORITY_HIGH ((uint32_t) CSL_DSS_WB_ATTRIBUTES_ARBITRATION_VAL_HIGHPRIO)
	Priority of write back pipeline is high. More...

DSS Write Back Pipe Mode

#define	CSL_DSS_WB_PIPE_MODE_CAPTURE ((uint32_t) CSL_DSS_WB_ATTRIBUTES_WRITEBACKMODE_VAL_CAPTURE)
	Capture Write Back Mode. More...

#define	CSL_DSS_WB_PIPE_MODE_M2M ((uint32_t) CSL_DSS_WB_ATTRIBUTES_WRITEBACKMODE_VAL_MEM2MEM)
	Memory to memory mode. More...

DSS Write Back Pipe Capture Rate

#define	CSL_DSS_WB_PIPE_CAPT_RATE_ALL ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ALL)
	All frames are captured. More...

#define	CSL_DSS_WB_PIPE_CAPT_RATE_1 ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ONLY1)
	Only one frame is captured. More...

#define	CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_2 ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ONLY1_2)
	Only one out of two frames is captured. More...

#define	CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_3 ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ONLY1_3)
	Only one out of three frames is captured. More...

#define	CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_4 ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ONLY1_4)
	Only one out of four frames is captured. More...

#define	CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_5 ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ONLY1_5)
	Only one out of five frames is captured. More...

#define	CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_6 ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ONLY1_6)
	Only one out of six frames is captured. More...

#define	CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_7 ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ONLY1_7)
	Only one out of seven frames is captured. More...

Macro Definition Documentation

◆ CSL_DSS_WB_PIPE_YUV_ALIGN_LSB

#define CSL_DSS_WB_PIPE_YUV_ALIGN_LSB ((uint32_t) CSL_DSS_WB_ATTRIBUTES2_YUV_ALIGN_VAL_LSB)

Data is LSB aligned (MSB unused)

◆ CSL_DSS_WB_PIPE_YUV_ALIGN_MSB

#define CSL_DSS_WB_PIPE_YUV_ALIGN_MSB ((uint32_t) CSL_DSS_WB_ATTRIBUTES2_YUV_ALIGN_VAL_MSB)

Data is MSB aligned (LSB unused)

◆ CSL_DSS_WB_PIPE_SC_DISABLED

#define CSL_DSS_WB_PIPE_SC_DISABLED ((uint32_t) CSL_DSS_WB_ATTRIBUTES_RESIZEENABLE_VAL_RESIZEPROC)

Scaler is disabled.

◆ CSL_DSS_WB_PIPE_SC_ENABLED_H

#define CSL_DSS_WB_PIPE_SC_ENABLED_H ((uint32_t) CSL_DSS_WB_ATTRIBUTES_RESIZEENABLE_VAL_HRESIZE)

Horizontal scaling is enabled.

◆ CSL_DSS_WB_PIPE_SC_ENABLED_V

#define CSL_DSS_WB_PIPE_SC_ENABLED_V ((uint32_t) CSL_DSS_WB_ATTRIBUTES_RESIZEENABLE_VAL_VRESIZE)

Vertical scaling is enabled.

◆ CSL_DSS_WB_PIPE_SC_ENABLED_HV

#define CSL_DSS_WB_PIPE_SC_ENABLED_HV ((uint32_t) CSL_DSS_WB_ATTRIBUTES_RESIZEENABLE_VAL_HVRESIZE)

Both horizontal and vertical scaling is enabled.

◆ CSL_DSS_WB_PIPE_PRIORITY_NORMAL

#define CSL_DSS_WB_PIPE_PRIORITY_NORMAL ((uint32_t) CSL_DSS_WB_ATTRIBUTES_ARBITRATION_VAL_NORMALPRIO)

Priority of write back pipeline is normal.

◆ CSL_DSS_WB_PIPE_PRIORITY_HIGH

#define CSL_DSS_WB_PIPE_PRIORITY_HIGH ((uint32_t) CSL_DSS_WB_ATTRIBUTES_ARBITRATION_VAL_HIGHPRIO)

Priority of write back pipeline is high.

◆ CSL_DSS_WB_PIPE_MODE_CAPTURE

#define CSL_DSS_WB_PIPE_MODE_CAPTURE ((uint32_t) CSL_DSS_WB_ATTRIBUTES_WRITEBACKMODE_VAL_CAPTURE)

Capture Write Back Mode.

◆ CSL_DSS_WB_PIPE_MODE_M2M

#define CSL_DSS_WB_PIPE_MODE_M2M ((uint32_t) CSL_DSS_WB_ATTRIBUTES_WRITEBACKMODE_VAL_MEM2MEM)

Memory to memory mode.

◆ CSL_DSS_WB_PIPE_CAPT_RATE_ALL

#define CSL_DSS_WB_PIPE_CAPT_RATE_ALL ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ALL)

All frames are captured.

◆ CSL_DSS_WB_PIPE_CAPT_RATE_1

#define CSL_DSS_WB_PIPE_CAPT_RATE_1 ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ONLY1)

Only one frame is captured.

◆ CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_2

#define CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_2 ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ONLY1_2)

Only one out of two frames is captured.

◆ CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_3

#define CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_3 ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ONLY1_3)

Only one out of three frames is captured.

◆ CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_4

#define CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_4 ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ONLY1_4)

Only one out of four frames is captured.

◆ CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_5

#define CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_5 ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ONLY1_5)

Only one out of five frames is captured.

◆ CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_6

#define CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_6 ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ONLY1_6)

Only one out of six frames is captured.

◆ CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_7

#define CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_7 ((uint32_t) CSL_DSS_WB_ATTRIBUTES_CAPTUREMODE_VAL_ONLY1_7)

Only one out of seven frames is captured.

Function Documentation

◆ CSL_dssWbPipeSetConfig()

int32_t CSL_dssWbPipeSetConfig	(	CSL_dss_wbRegs *	wbRegs,
		const CSL_DssWbPipeCfg *	wbCfg
	)

Configure the Write Back Pipe.

Parameters

wbRegs	Pointer to a CSL_dss_wbRegs structure containing the Write Back Pipe configuration
wbCfg	Pointer to the CSL_DssWbPipeCfg structure. This parameter should not be NULL

Returns: CSL_ErrType_t

◆ CSL_dssWbPipeSetDmaConfig()

void CSL_dssWbPipeSetDmaConfig	(	CSL_dss_wbRegs *	wbRegs,
		const CSL_DssWbPipeDmaCfg *	dmaCfg
	)

Configure the Write Back Pipe DMA parameters.

Parameters

wbRegs	Pointer to a CSL_dss_wbRegs structure containing the Write Back Pipe configuration
dmaCfg	Pointer to the CSL_DssWbPipeDmaCfg structure. This parameter should not be NULL

Returns: None

◆ CSL_dssWbPipeCheckFmt()

int32_t CSL_dssWbPipeCheckFmt ( uint32_t fvid2Fmt )

Checks if the destination Fvid2_format is a valid format supported by writeback pipeline.

Parameters

fvid2Fmt Fvid2_format value that is to be checked for validity.

Returns: None

◆ CSL_dssWbPipeSetCSCCoeff()

void CSL_dssWbPipeSetCSCCoeff	(	CSL_dss_wbRegs *	wbRegs,
		const CSL_DssCscCoeff *	coeff
	)

Configure the coefficients for Color Space Conversion.

Parameters

wbRegs	Pointer to a CSL_dss_wbRegs structure containing the Write Back Pipe configuration
coeff	Pointer to CSL_DssCscCoeff structure. This parameter should not be NULL

Returns: None

◆ CSL_dssWbPipeSetBuffAddr()

void CSL_dssWbPipeSetBuffAddr	(	CSL_dss_wbRegs *	wbRegs,
		uint32_t	field,
		uint64_t	baseAddrRGBY,
		uint64_t	baseAddrUV
	)

Set the write back buffer address.

Parameters

wbRegs	Pointer to a CSL_dss_wbRegs structure containing the Write Back Pipe configuration
field	Top or bottom field. Refer Fvid2_Fid for values. Top is even field and Bottom is odd
baseAddrRGBY	Base address of RGB or Y plane depending on format
baseAddrUV	UV base address valid only for YUV420-NV12/NV21

Returns: None

◆ CSL_dssWbPipeEnable()

void CSL_dssWbPipeEnable	(	CSL_dss_wbRegs *	wbRegs,
		uint32_t	enable
	)

Enable the DSS Write Back Pipe.

Parameters

wbRegs	Pointer to a CSL_dss_wbRegs structure containing the Write Back Pipe configuration
enable	Enable or disable the Write Back Pipe TRUE: Enable FALSE: Disable

Returns: None

◆ CSL_dssWbPipeSetMflagConfig()

void CSL_dssWbPipeSetMflagConfig	(	CSL_dss_wbRegs *	wbRegs,
		const CSL_DssWbPipeMFlagCfg *	mflagCfg
	)

Set the MFLAG configuration.

Parameters

wbRegs	Pointer to a CSL_dss_wbRegs structure containing the Write Back Pipe configuration
mflagCfg	Pointer to CSL_DssWbPipeMFlagCfg structure. This parameter should not be NULL

Returns: None

◆ CSL_dssWbPipeSetGoBit()

void CSL_dssWbPipeSetGoBit ( CSL_dss_wbRegs * wbRegs )

GO Command for the WB pipeline. It is used to synchronize the pipelines associated with the WB output.

Parameters

wbRegs Pointer to a CSL_dss_wbRegs structure containing the Write Back Pipe configuration

Returns: None

◆ CSL_dssWbGetPitchFactors()

int32_t CSL_dssWbGetPitchFactors	(	uint32_t	fvid2Fmt,
		uint32_t *	pitchValArr
	)

This function populates the pitchValArr with the Bits Per Pixel for the provided data format.

Parameters

fvid2Fmt	FVID2 Frame data Format. For valid values see Fvid2_DataFormat.
pitchValArr	Pointer to the array in which pitches are returned. The array should be of size FVID2_MAX_PLANES_PER_FIELD.

Returns: CSL_PASS if successful. CSL_EBADARGS otherwise.

◆ CSL_dssWbPipeCfgInit()

static void CSL_dssWbPipeCfgInit ( CSL_DssWbPipeCfg * wbCfg )

inlinestatic

CSL_DssWbPipeCfg structure init function.

Parameters

wbCfg Pointer to CSL_DssWbPipeCfg structure

Returns: None

◆ CSL_dssWbPipeDmaCfgInit()

static void CSL_dssWbPipeDmaCfgInit ( CSL_DssWbPipeDmaCfg * dmaCfg )

inlinestatic

CSL_DssWbPipeDmaCfg structure init function.

Parameters

dmaCfg Pointer to CSL_DssWbPipeDmaCfg structure

Returns: None

◆ CSL_dssWbPipeMFlagCfgInit()

static void CSL_dssWbPipeMFlagCfgInit ( CSL_DssWbPipeMFlagCfg * mflagCfg )

inlinestatic

CSL_DssWbPipeMFlagCfg structure init function.

Parameters

mflagCfg Pointer to CSL_DssWbPipeMFlagCfg structure

Returns: None

Introduction

Files

Data Structures

Functions

DSS Write Back Pipe YUV Alignment

DSS Write Back Pipe Scaler Value

DSS Write Back Pipe Priority Value

DSS Write Back Pipe Mode

DSS Write Back Pipe Capture Rate

Macro Definition Documentation

◆ CSL_DSS_WB_PIPE_YUV_ALIGN_LSB

◆ CSL_DSS_WB_PIPE_YUV_ALIGN_MSB

◆ CSL_DSS_WB_PIPE_SC_DISABLED

◆ CSL_DSS_WB_PIPE_SC_ENABLED_H

◆ CSL_DSS_WB_PIPE_SC_ENABLED_V

◆ CSL_DSS_WB_PIPE_SC_ENABLED_HV

◆ CSL_DSS_WB_PIPE_PRIORITY_NORMAL

◆ CSL_DSS_WB_PIPE_PRIORITY_HIGH

◆ CSL_DSS_WB_PIPE_MODE_CAPTURE

◆ CSL_DSS_WB_PIPE_MODE_M2M

◆ CSL_DSS_WB_PIPE_CAPT_RATE_ALL

◆ CSL_DSS_WB_PIPE_CAPT_RATE_1

◆ CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_2

◆ CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_3

◆ CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_4

◆ CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_5

◆ CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_6

◆ CSL_DSS_WB_PIPE_CAPT_RATE_1_FROM_7

Function Documentation

◆ CSL_dssWbPipeSetConfig()

◆ CSL_dssWbPipeSetDmaConfig()

◆ CSL_dssWbPipeCheckFmt()

◆ CSL_dssWbPipeSetCSCCoeff()

◆ CSL_dssWbPipeSetBuffAddr()

◆ CSL_dssWbPipeEnable()

◆ CSL_dssWbPipeSetMflagConfig()

◆ CSL_dssWbPipeSetGoBit()

◆ CSL_dssWbGetPitchFactors()

◆ CSL_dssWbPipeCfgInit()

◆ CSL_dssWbPipeDmaCfgInit()

◆ CSL_dssWbPipeMFlagCfgInit()