Lcdifv2

Data Structures
struct	_lcdifv2_display_config
	LCDIF v2 display configure structure. More...
struct	_lcdifv2_buffer_config
	LCDIF v2 source buffer configuration. More...
struct	_lcdifv2_blend_config
	LCDIF v2 layer alpha blending configuration. More...

Variables
uint16_t	_lcdifv2_display_config::panelWidth
uint16_t	_lcdifv2_display_config::panelHeight
uint8_t	_lcdifv2_display_config::hsw
uint8_t	_lcdifv2_display_config::hfp
uint8_t	_lcdifv2_display_config::hbp
uint8_t	_lcdifv2_display_config::vsw
uint8_t	_lcdifv2_display_config::vfp
uint8_t	_lcdifv2_display_config::vbp
uint32_t	_lcdifv2_display_config::polarityFlags
lcdifv2_line_order_t	_lcdifv2_display_config::lineOrder
uint16_t	_lcdifv2_buffer_config::strideBytes
lcdifv2_pixel_format_t	_lcdifv2_buffer_config::pixelFormat
uint8_t	_lcdifv2_blend_config::globalAlpha
lcdifv2_alpha_mode_t	_lcdifv2_blend_config::alphaMode
lcdifv2_pd_alpha_mode_t	_lcdifv2_blend_config::pdAlphaMode
lcdifv2_pd_color_mode_t	_lcdifv2_blend_config::pdColorMode
lcdifv2_pd_global_alpha_mode_t	_lcdifv2_blend_config::pdGlobalAlphaMode
lcdifv2_pd_factor_mode_t	_lcdifv2_blend_config::pdFactorMode

Driver version
enum	_lcdifv2_polarity_flags {   kLCDIFV2_VsyncActiveHigh = 0U , kLCDIFV2_HsyncActiveHigh = 0U , kLCDIFV2_DataEnableActiveHigh = 0U , kLCDIFV2_DriveDataOnRisingClkEdge = 0U ,   kLCDIFV2_DataActiveHigh = 0U , kLCDIFV2_VsyncActiveLow = LCDIFV2_CTRL_INV_VS_MASK , kLCDIFV2_HsyncActiveLow = LCDIFV2_CTRL_INV_HS_MASK , kLCDIFV2_DataEnableActiveLow = LCDIFV2_CTRL_INV_DE_MASK ,   kLCDIFV2_DriveDataOnFallingClkEdge = LCDIFV2_CTRL_INV_PXCK_MASK , kLCDIFV2_DataActiveLow = LCDIFV2_CTRL_NEG_MASK }
	LCDIF v2 signal polarity flags. More...
enum	_lcdifv2_interrupt {   kLCDIFV2_Layer0FifoEmptyInterrupt = LCDIFV2_MAKE_FIFO_EMPTY_INTERRUPT(0) , kLCDIFV2_Layer1FifoEmptyInterrupt = LCDIFV2_MAKE_FIFO_EMPTY_INTERRUPT(1) , kLCDIFV2_Layer2FifoEmptyInterrupt = LCDIFV2_MAKE_FIFO_EMPTY_INTERRUPT(2) , kLCDIFV2_Layer3FifoEmptyInterrupt = LCDIFV2_MAKE_FIFO_EMPTY_INTERRUPT(3) ,   kLCDIFV2_Layer4FifoEmptyInterrupt = LCDIFV2_MAKE_FIFO_EMPTY_INTERRUPT(4) , kLCDIFV2_Layer5FifoEmptyInterrupt = LCDIFV2_MAKE_FIFO_EMPTY_INTERRUPT(5) , kLCDIFV2_Layer6FifoEmptyInterrupt = LCDIFV2_MAKE_FIFO_EMPTY_INTERRUPT(6) , kLCDIFV2_Layer7FifoEmptyInterrupt = LCDIFV2_MAKE_FIFO_EMPTY_INTERRUPT(7) ,   kLCDIFV2_Layer0DmaDoneInterrupt = LCDIFV2_MAKE_DMA_DONE_INTERRUPT(0) , kLCDIFV2_Layer1DmaDoneInterrupt = LCDIFV2_MAKE_DMA_DONE_INTERRUPT(1) , kLCDIFV2_Layer2DmaDoneInterrupt = LCDIFV2_MAKE_DMA_DONE_INTERRUPT(2) , kLCDIFV2_Layer3DmaDoneInterrupt = LCDIFV2_MAKE_DMA_DONE_INTERRUPT(3) ,   kLCDIFV2_Layer4DmaDoneInterrupt = LCDIFV2_MAKE_DMA_DONE_INTERRUPT(4) , kLCDIFV2_Layer5DmaDoneInterrupt = LCDIFV2_MAKE_DMA_DONE_INTERRUPT(5) , kLCDIFV2_Layer6DmaDoneInterrupt = LCDIFV2_MAKE_DMA_DONE_INTERRUPT(6) , kLCDIFV2_Layer7DmaDoneInterrupt = LCDIFV2_MAKE_DMA_DONE_INTERRUPT(7) ,   kLCDIFV2_Layer0DmaErrorInterrupt = LCDIFV2_MAKE_DMA_ERROR_INTERRUPT(0) , kLCDIFV2_Layer1DmaErrorInterrupt = LCDIFV2_MAKE_DMA_ERROR_INTERRUPT(1) , kLCDIFV2_Layer2DmaErrorInterrupt = LCDIFV2_MAKE_DMA_ERROR_INTERRUPT(2) , kLCDIFV2_Layer3DmaErrorInterrupt = LCDIFV2_MAKE_DMA_ERROR_INTERRUPT(3) ,   kLCDIFV2_Layer4DmaErrorInterrupt = LCDIFV2_MAKE_DMA_ERROR_INTERRUPT(4) , kLCDIFV2_Layer5DmaErrorInterrupt = LCDIFV2_MAKE_DMA_ERROR_INTERRUPT(5) , kLCDIFV2_Layer6DmaErrorInterrupt = LCDIFV2_MAKE_DMA_ERROR_INTERRUPT(6) , kLCDIFV2_Layer7DmaErrorInterrupt = LCDIFV2_MAKE_DMA_ERROR_INTERRUPT(7) ,   kLCDIFV2_VerticalBlankingInterrupt = (1U << 2U) , kLCDIFV2_OutputUnderrunInterrupt = (1U << 1U) , kLCDIFV2_VsyncEdgeInterrupt = (1U << 0U) }
	The LCDIF v2 interrupts. More...
enum	_lcdifv2_line_order {   kLCDIFV2_LineOrderRGB = 0 , kLCDIFV2_LineOrderRBG , kLCDIFV2_LineOrderGBR , kLCDIFV2_LineOrderGRB ,   kLCDIFV2_LineOrderBRG , kLCDIFV2_LineOrderBGR }
	The LCDIF v2 output line order. More...
enum	_lcdifv2_csc_mode { kLCDIFV2_CscDisable = 0U , kLCDIFV2_CscYUV2RGB , kLCDIFV2_CscYCbCr2RGB }
	LCDIF v2 color space conversion mode. More...
enum	_lcdifv2_pixel_format {   kLCDIFV2_PixelFormatIndex1BPP = LCDIFV2_CTRLDESCL5_BPP(0U) , kLCDIFV2_PixelFormatIndex2BPP = LCDIFV2_CTRLDESCL5_BPP(1U) , kLCDIFV2_PixelFormatIndex4BPP = LCDIFV2_CTRLDESCL5_BPP(2U) , kLCDIFV2_PixelFormatIndex8BPP = LCDIFV2_CTRLDESCL5_BPP(3U) ,   kLCDIFV2_PixelFormatRGB565 = LCDIFV2_CTRLDESCL5_BPP(4U) , kLCDIFV2_PixelFormatARGB1555 = LCDIFV2_CTRLDESCL5_BPP(5U) , kLCDIFV2_PixelFormatARGB4444 = LCDIFV2_CTRLDESCL5_BPP(6U) , kLCDIFV2_PixelFormatUYVY ,   kLCDIFV2_PixelFormatVYUY , kLCDIFV2_PixelFormatYUYV , kLCDIFV2_PixelFormatYVYU , kLCDIFV2_PixelFormatRGB888 = LCDIFV2_CTRLDESCL5_BPP(8U) ,   kLCDIFV2_PixelFormatARGB8888 = LCDIFV2_CTRLDESCL5_BPP(9U) , kLCDIFV2_PixelFormatABGR8888 = LCDIFV2_CTRLDESCL5_BPP(10U) }
	LCDIF v2 pixel format. More...
enum	_lcdifv2_alpha_mode { kLCDIFV2_AlphaDisable , kLCDIFV2_AlphaOverride , kLCDIFV2_AlphaEmbedded , kLCDIFV2_AlphaPoterDuff }
	LCDIF v2 layer alpha blending mode. More...
enum	_lcdifv2_pd_alpha_mode { kLCDIFV2_PD_AlphaStraight = 0 , kLCDIFV2_PD_AlphaInversed = 1 }
	LCDIF v2 PoterDuff alpha mode. More...
enum	_lcdifv2_pd_color_mode { kLCDIFV2_PD_ColorNoAlpha = 0 , kLCDIFV2_PD_ColorWithAlpha = 1 }
	LCDIF v2 PoterDuff color mode. More...
enum	_lcdifv2_pd_global_alpha_mode { kLCDIFV2_PD_GlobalAlpha = 0 , kLCDIFV2_PD_LocalAlpha = 1 , kLCDIFV2_PD_ScaledAlpha = 2 }
	LCDIF v2 PoterDuff global alpha mode. More...
enum	_lcdifv2_pd_factor_mode { kLCDIFV2_PD_FactorOne = 0 , kLCDIFV2_PD_FactorZero = 1 , kLCDIFV2_PD_FactorStraightAlpha = 2 , kLCDIFV2_PD_FactorInversedAlpha = 3 }
	LCDIF v2 PoterDuff factor mode. More...
enum	_lcdifv2_pd_blend_mode {   kLCDIFV2_PD_Src = 0 , kLCDIFV2_PD_Atop , kLCDIFV2_PD_Over , kLCDIFV2_PD_In ,   kLCDIFV2_PD_Out , kLCDIFV2_PD_Dst , kLCDIFV2_PD_DstAtop , kLCDIFV2_PD_DstOver ,   kLCDIFV2_PD_DstIn , kLCDIFV2_PD_DstOut , kLCDIFV2_PD_Xor , kLCDIFV2_PD_Clear ,   kLCDIFV2_PD_Max }
	LCDIFv2 Porter Duff blend mode. Note: Don't change the enum item value. More...
enum	_lcdifv2_pd_layer { kLCDIFV2_PD_SrcLayer = 0 , kLCDIFV2_PD_DestLayer = 1 , kLCDIFV2_PD_LayerMax = 2 }
	LCDIFv2 Porter Duff layer. Note: Don't change the enum item value. More...
typedef enum _lcdifv2_line_order	lcdifv2_line_order_t
	The LCDIF v2 output line order.
typedef struct _lcdifv2_display_config	lcdifv2_display_config_t
	LCDIF v2 display configure structure.
typedef enum _lcdifv2_csc_mode	lcdifv2_csc_mode_t
	LCDIF v2 color space conversion mode.
typedef enum _lcdifv2_pixel_format	lcdifv2_pixel_format_t
	LCDIF v2 pixel format.
typedef struct _lcdifv2_buffer_config	lcdifv2_buffer_config_t
	LCDIF v2 source buffer configuration.
typedef enum _lcdifv2_alpha_mode	lcdifv2_alpha_mode_t
	LCDIF v2 layer alpha blending mode.
typedef enum _lcdifv2_pd_alpha_mode	lcdifv2_pd_alpha_mode_t
	LCDIF v2 PoterDuff alpha mode.
typedef enum _lcdifv2_pd_color_mode	lcdifv2_pd_color_mode_t
	LCDIF v2 PoterDuff color mode.
typedef enum _lcdifv2_pd_global_alpha_mode	lcdifv2_pd_global_alpha_mode_t
	LCDIF v2 PoterDuff global alpha mode.
typedef enum _lcdifv2_pd_factor_mode	lcdifv2_pd_factor_mode_t
	LCDIF v2 PoterDuff factor mode.
typedef struct _lcdifv2_blend_config	lcdifv2_blend_config_t
	LCDIF v2 layer alpha blending configuration.
typedef enum _lcdifv2_pd_blend_mode	lcdifv2_pd_blend_mode_t
	LCDIFv2 Porter Duff blend mode. Note: Don't change the enum item value.
typedef enum _lcdifv2_pd_layer	lcdifv2_pd_layer_t
	LCDIFv2 Porter Duff layer. Note: Don't change the enum item value.
#define	FSL_LCDIFV2_DRIVER_VERSION   (MAKE_VERSION(2, 3, 2))
	LCDIF v2 driver version.
#define	LCDIFV2_ADDR_CPU_2_IP(addr)   (addr)
#define	LCDIFV2_MAKE_FIFO_EMPTY_INTERRUPT(layer)   (1UL << ((uint32_t)(layer) + 24U))
	LCDIF v2 FIFO empty interrupt.
#define	LCDIFV2_MAKE_DMA_DONE_INTERRUPT(layer)   (1UL << ((uint32_t)(layer) + 16U))
	LCDIF v2 DMA done interrupt.
#define	LCDIFV2_MAKE_DMA_ERROR_INTERRUPT(layer)   (1UL << ((uint32_t)(layer) + 8U))
	LCDIF v2 DMA error interrupt.
#define	LCDIFV2_LUT_ENTRY_NUM   256U

LCDIF v2 initialization and de-initialization
void	LCDIFV2_Init (LCDIFV2_Type *base)
	Initializes the LCDIF v2.
void	LCDIFV2_Deinit (LCDIFV2_Type *base)
	Deinitializes the LCDIF peripheral.
void	LCDIFV2_Reset (LCDIFV2_Type *base)
	Reset the LCDIF v2.

Display
void	LCDIFV2_DisplayGetDefaultConfig (lcdifv2_display_config_t *config)
	Gets the LCDIF display default configuration structure.
void	LCDIFV2_SetDisplayConfig (LCDIFV2_Type *base, const lcdifv2_display_config_t *config)
	Set the LCDIF v2 display configurations.

LUT
status_t	LCDIFV2_SetLut (LCDIFV2_Type *base, uint8_t layerIndex, const uint32_t *lutData, uint16_t count, bool useShadowLoad)
	Set the LUT data.

Layer operation
void	LCDIFV2_SetLayerBufferConfig (LCDIFV2_Type *base, uint8_t layerIndex, const lcdifv2_buffer_config_t *config)
	Set the layer source buffer configuration.
void	LCDIFV2_SetLayerBlendConfig (LCDIFV2_Type *base, uint8_t layerIndex, const lcdifv2_blend_config_t *config)
	Set the layer alpha blend mode.
void	LCDIFV2_SetCscMode (LCDIFV2_Type *base, uint8_t layerIndex, lcdifv2_csc_mode_t mode)
	Set the color space conversion mode.

Porter Duff
status_t	LCDIFV2_GetPorterDuffConfig (lcdifv2_pd_blend_mode_t mode, lcdifv2_pd_layer_t layer, lcdifv2_blend_config_t *config)
	Get the blend configuration for Porter Duff blend.

Misc
status_t	LCDIFV2_GetMultiLayerGlobalAlpha (const uint8_t blendedAlpha[], uint8_t globalAlpha[], uint8_t layerCount)
	Get the global alpha values for multiple layer blend.

Detailed Description

Enumeration Type Documentation

_lcdifv2_alpha_mode

enum _lcdifv2_alpha_mode

LCDIF v2 layer alpha blending mode.

Enumerator
kLCDIFV2_AlphaDisable	Disable alpha blend.
kLCDIFV2_AlphaOverride	Use the gobal alpha value, pixel defined alpha value is overridden.
kLCDIFV2_AlphaEmbedded	Use the pixel defined alpha value.
kLCDIFV2_AlphaPoterDuff	Use the PoterDuff alpha blending.

_lcdifv2_csc_mode

enum _lcdifv2_csc_mode

LCDIF v2 color space conversion mode.

Enumerator
kLCDIFV2_CscDisable	Disable the CSC.
kLCDIFV2_CscYUV2RGB	YUV to RGB.
kLCDIFV2_CscYCbCr2RGB	YCbCr to RGB.

_lcdifv2_interrupt

enum _lcdifv2_interrupt

The LCDIF v2 interrupts.

Enumerator
kLCDIFV2_Layer0FifoEmptyInterrupt	Layer 0 FIFO empty.
kLCDIFV2_Layer1FifoEmptyInterrupt	Layer 1 FIFO empty.
kLCDIFV2_Layer2FifoEmptyInterrupt	Layer 2 FIFO empty.
kLCDIFV2_Layer3FifoEmptyInterrupt	Layer 3 FIFO empty.
kLCDIFV2_Layer4FifoEmptyInterrupt	Layer 4 FIFO empty.
kLCDIFV2_Layer5FifoEmptyInterrupt	Layer 5 FIFO empty.
kLCDIFV2_Layer6FifoEmptyInterrupt	Layer 6 FIFO empty.
kLCDIFV2_Layer7FifoEmptyInterrupt	Layer 7 FIFO empty.
kLCDIFV2_Layer0DmaDoneInterrupt	Layer 0 DMA done.
kLCDIFV2_Layer1DmaDoneInterrupt	Layer 1 DMA done.
kLCDIFV2_Layer2DmaDoneInterrupt	Layer 2 DMA done.
kLCDIFV2_Layer3DmaDoneInterrupt	Layer 3 DMA done.
kLCDIFV2_Layer4DmaDoneInterrupt	Layer 4 DMA done.
kLCDIFV2_Layer5DmaDoneInterrupt	Layer 5 DMA done.
kLCDIFV2_Layer6DmaDoneInterrupt	Layer 6 DMA done.
kLCDIFV2_Layer7DmaDoneInterrupt	Layer 7 DMA done.
kLCDIFV2_Layer0DmaErrorInterrupt	Layer 0 DMA error.
kLCDIFV2_Layer1DmaErrorInterrupt	Layer 1 DMA error.
kLCDIFV2_Layer2DmaErrorInterrupt	Layer 2 DMA error.
kLCDIFV2_Layer3DmaErrorInterrupt	Layer 3 DMA error.
kLCDIFV2_Layer4DmaErrorInterrupt	Layer 4 DMA error.
kLCDIFV2_Layer5DmaErrorInterrupt	Layer 5 DMA error.
kLCDIFV2_Layer6DmaErrorInterrupt	Layer 6 DMA error.
kLCDIFV2_Layer7DmaErrorInterrupt	Layer 7 DMA error.
kLCDIFV2_VerticalBlankingInterrupt	Start of vertical blanking period.
kLCDIFV2_OutputUnderrunInterrupt	Output buffer underrun.
kLCDIFV2_VsyncEdgeInterrupt	Interrupt at VSYNC edge.

_lcdifv2_line_order

enum _lcdifv2_line_order

The LCDIF v2 output line order.

Enumerator
kLCDIFV2_LineOrderRGB	RGB
kLCDIFV2_LineOrderRBG	RBG
kLCDIFV2_LineOrderGBR	GBR
kLCDIFV2_LineOrderGRB	GRB
kLCDIFV2_LineOrderBRG	BRG
kLCDIFV2_LineOrderBGR	BGR

_lcdifv2_pd_alpha_mode

enum _lcdifv2_pd_alpha_mode

LCDIF v2 PoterDuff alpha mode.

Enumerator
kLCDIFV2_PD_AlphaStraight	Straight mode.
kLCDIFV2_PD_AlphaInversed	Inversed mode.

_lcdifv2_pd_blend_mode

enum _lcdifv2_pd_blend_mode

LCDIFv2 Porter Duff blend mode. Note: Don't change the enum item value.

Enumerator
kLCDIFV2_PD_Src	Source Only
kLCDIFV2_PD_Atop	Source Atop
kLCDIFV2_PD_Over	Source Over
kLCDIFV2_PD_In	Source In.
kLCDIFV2_PD_Out	Source Out.
kLCDIFV2_PD_Dst	Destination Only.
kLCDIFV2_PD_DstAtop	Destination Atop.
kLCDIFV2_PD_DstOver	Destination Over.
kLCDIFV2_PD_DstIn	Destination In.
kLCDIFV2_PD_DstOut	Destination Out.
kLCDIFV2_PD_Xor	XOR.
kLCDIFV2_PD_Clear	Clear.
kLCDIFV2_PD_Max	Used for boarder detection.

_lcdifv2_pd_color_mode

enum _lcdifv2_pd_color_mode

LCDIF v2 PoterDuff color mode.

Enumerator
kLCDIFV2_PD_ColorNoAlpha	Output color directly.
kLCDIFV2_PD_ColorWithAlpha	Output color multiples alpha.

_lcdifv2_pd_factor_mode

enum _lcdifv2_pd_factor_mode

LCDIF v2 PoterDuff factor mode.

Enumerator
kLCDIFV2_PD_FactorOne	Use 1.
kLCDIFV2_PD_FactorZero	Use 0.
kLCDIFV2_PD_FactorStraightAlpha	Use straight alpha.
kLCDIFV2_PD_FactorInversedAlpha	Use inversed alpha.

_lcdifv2_pd_global_alpha_mode

enum _lcdifv2_pd_global_alpha_mode

LCDIF v2 PoterDuff global alpha mode.

Enumerator
kLCDIFV2_PD_GlobalAlpha	Use global alpha.
kLCDIFV2_PD_LocalAlpha	Use local alpha.
kLCDIFV2_PD_ScaledAlpha	Use scaled alpha.

_lcdifv2_pd_layer

enum _lcdifv2_pd_layer

LCDIFv2 Porter Duff layer. Note: Don't change the enum item value.

Enumerator
kLCDIFV2_PD_SrcLayer	Source layer.
kLCDIFV2_PD_DestLayer	Destination layer.
kLCDIFV2_PD_LayerMax	Used for boarder detection.

_lcdifv2_pixel_format

enum _lcdifv2_pixel_format

LCDIF v2 pixel format.

Enumerator
kLCDIFV2_PixelFormatIndex1BPP	LUT index 1 bit.
kLCDIFV2_PixelFormatIndex2BPP	LUT index 2 bit.
kLCDIFV2_PixelFormatIndex4BPP	LUT index 4 bit.
kLCDIFV2_PixelFormatIndex8BPP	LUT index 8 bit.
kLCDIFV2_PixelFormatRGB565	RGB565, two pixels use 32 bits.
kLCDIFV2_PixelFormatARGB1555	ARGB1555, two pixels use 32 bits.
kLCDIFV2_PixelFormatARGB4444	ARGB4444, two pixels use 32 bits.
kLCDIFV2_PixelFormatUYVY	UYVY, only layer 0 and layer 1 support this.
kLCDIFV2_PixelFormatVYUY	VYUY, only layer 0 and layer 1 support this.
kLCDIFV2_PixelFormatYUYV	YUYV, only layer 0 and layer 1 support this.
kLCDIFV2_PixelFormatYVYU	YVYU, only layer 0 and layer 1 support this.
kLCDIFV2_PixelFormatRGB888	RGB888 packed, one pixel uses 24 bits.
kLCDIFV2_PixelFormatARGB8888	ARGB8888 unpacked, one pixel uses 32 bits.
kLCDIFV2_PixelFormatABGR8888	ABGR8888 unpacked, one pixel uses 32 bits.

_lcdifv2_polarity_flags

enum _lcdifv2_polarity_flags

LCDIF v2 signal polarity flags.

Enumerator
kLCDIFV2_VsyncActiveHigh	VSYNC active high.
kLCDIFV2_HsyncActiveHigh	HSYNC active high.
kLCDIFV2_DataEnableActiveHigh	Data enable line active high.
kLCDIFV2_DriveDataOnRisingClkEdge	Output data on rising clock edge, capture data on falling clock edge.
kLCDIFV2_DataActiveHigh	Data active high.
kLCDIFV2_VsyncActiveLow	VSYNC active low.
kLCDIFV2_HsyncActiveLow	HSYNC active low.
kLCDIFV2_DataEnableActiveLow	Data enable line active low.
kLCDIFV2_DriveDataOnFallingClkEdge	Output data on falling clock edge, capture data on rising clock edge.
kLCDIFV2_DataActiveLow	Data active high.

Function Documentation

LCDIFV2_Deinit()

void LCDIFV2_Deinit

(

LCDIFV2_Type *

base

)

Deinitializes the LCDIF peripheral.

Parameters

base	LCDIF peripheral base address.

brief Deinitializes the LCDIF peripheral.

param base LCDIF peripheral base address.

LCDIFV2_DisplayGetDefaultConfig()

void LCDIFV2_DisplayGetDefaultConfig

(

lcdifv2_display_config_t *

config

)

Gets the LCDIF display default configuration structure.

This function sets the configuration structure to default values. The default configuration is set to the following values.

config->panelWidth    = 0U;
config->panelHeight   = 0U;
config->hsw           = 3U;
config->hfp           = 3U;
config->hbp           = 3U;
config->vsw           = 3U;
config->vfp           = 3U;
config->vbp           = 3U;
config->polarityFlags = kLCDIFV2_VsyncActiveHigh | kLCDIFV2_HsyncActiveHigh | kLCDIFV2_DataEnableActiveHigh |
                        kLCDIFV2_DriveDataOnRisingClkEdge | kLCDIFV2_DataActiveHigh;
config->lineOrder       = kLCDIFV2_LineOrderRGB;

Parameters

config

Pointer to the LCDIF configuration structure.

brief Gets the LCDIF display default configuration structure.

param config Pointer to the LCDIF configuration structure.

LCDIFV2_GetMultiLayerGlobalAlpha()

status_t LCDIFV2_GetMultiLayerGlobalAlpha	(	const uint8_t	blendedAlpha[],
		uint8_t	globalAlpha[],
		uint8_t	layerCount
	)

Get the global alpha values for multiple layer blend.

This function calculates the global alpha value for each layer based on the desired blended alpha.

When all layers use the global alpha, the relationship of blended alpha and global alpha of each layer is:

Layer 7: ba7 = ga7 Layer 6: ba6 = ga6 * (1-ga7) Layer 5: ba5 = ga5 * (1-ga6) * (1-ga7) Layer 4: ba4 = ga4 * (1-ga5) * (1-ga6) * (1-ga7) Layer 3: ba3 = ga3 * (1-ga4) * (1-ga5) * (1-ga6) * (1-ga7) Layer 2: ba2 = ga2 * (1-ga3) * (1-ga4) * (1-ga5) * (1-ga6) * (1-ga7) Layer 1: ba1 = ga1 * (1-ga2) * (1-ga3) * (1-ga4) * (1-ga5) * (1-ga6) * (1-ga7) Layer 0: ba0 = 1 * (1-ga1) * (1-ga2) * (1-ga3) * (1-ga4) * (1-ga5) * (1-ga6) * (1-ga7)

Here baN is the blended alpha of layer N, gaN is the global alpha configured to layer N.

This function calculates the global alpha based on the blended alpha. The blendedAlpha and globalAlpha are all arrays of size layerCount. The first layer is a background layer, so blendedAlpha[0] is useless, globalAlpha[0] is always 255.

Parameters

[in]	blendedAlpha	The desired blended alpha value, alpha range 0~255.
[out]	globalAlpha	Calculated global alpha set to each layer register.
[in]	layerCount	Total layer count.

Return values

kStatus_Success	Get successfully.
kStatus_InvalidArgument	The argument is invalid.

LCDIFV2_GetPorterDuffConfig()

status_t LCDIFV2_GetPorterDuffConfig	(	lcdifv2_pd_blend_mode_t	mode,
		lcdifv2_pd_layer_t	layer,
		lcdifv2_blend_config_t *	config
	)

Get the blend configuration for Porter Duff blend.

This function gets the blend configuration for Porter Duff blend, config->pdFactorMode is set according to layer and mode, other blend configurations are set to:

config->pdAlphaMode = kLCDIFV2_PD_AlphaStraight;
config->pdColorMode = kLCDIFV2_PD_ColorStraight;
config->pdGlobalAlphaMode = kLCDIFV2_PD_LocalAlpha;
config->alphaMode = kLCDIFV2_AlphaPoterDuff;

This is the basic Porter Duff blend configuration, user still could modify the configurations after this function.

Parameters

mode	Porter Duff blend mode.
layer	The configuration for source layer or destination layer.
config	Pointer to the configuration.

Return values

kStatus_Success	Get the configuration successfully.
kStatus_InvalidArgument	The argument is invalid.

LCDIFV2_Init()

void LCDIFV2_Init

(

LCDIFV2_Type *

base

)

Initializes the LCDIF v2.

This function ungates the LCDIF v2 clock and release the peripheral reset.

Parameters

base	LCDIF v2 peripheral base address.

brief Initializes the LCDIF v2.

This function ungates the LCDIF v2 clock and release the peripheral reset.

param base LCDIF v2 peripheral base address.

LCDIFV2_Reset()

void LCDIFV2_Reset

(

LCDIFV2_Type *

base

)

Reset the LCDIF v2.

Parameters

base	LCDIF peripheral base address.

brief Reset the LCDIF v2.

param base LCDIF peripheral base address.

LCDIFV2_SetCscMode()

void LCDIFV2_SetCscMode	(	LCDIFV2_Type *	base,
		uint8_t	layerIndex,
		lcdifv2_csc_mode_t	mode
	)

Set the color space conversion mode.

Supports YUV2RGB and YCbCr2RGB.

Parameters

base	LCDIFv2 peripheral base address.
layerIndex	Index of the layer.
mode	The conversion mode.

brief Set the color space conversion mode.

Supports YUV2RGB and YCbCr2RGB.

param base LCDIFv2 peripheral base address. param layerIndex Index of the layer. param mode The conversion mode.

LCDIFV2_SetDisplayConfig()

void LCDIFV2_SetDisplayConfig	(	LCDIFV2_Type *	base,
		const lcdifv2_display_config_t *	config
	)

Set the LCDIF v2 display configurations.

Parameters

base	LCDIF peripheral base address.
config	Pointer to the LCDIF configuration structure.

brief Set the LCDIF v2 display configurations.

param base LCDIF peripheral base address. param config Pointer to the LCDIF configuration structure.

LCDIFV2_SetLayerBlendConfig()

void LCDIFV2_SetLayerBlendConfig	(	LCDIFV2_Type *	base,
		uint8_t	layerIndex,
		const lcdifv2_blend_config_t *	config
	)

Set the layer alpha blend mode.

Parameters

base	LCDIFv2 peripheral base address.
layerIndex	Index of the CSC unit.
config	Pointer to the blend configuration.

brief Set the layer alpha blend mode.

param base LCDIFv2 peripheral base address. param layerIndex Index of the CSC unit. param config Pointer to the blend configuration.

LCDIFV2_SetLayerBufferConfig()

void LCDIFV2_SetLayerBufferConfig	(	LCDIFV2_Type *	base,
		uint8_t	layerIndex,
		const lcdifv2_buffer_config_t *	config
	)

Set the layer source buffer configuration.

Parameters

base	LCDIFv2 peripheral base address.
layerIndex	Layer layerIndex.
config	Pointer to the configuration.

brief Set the layer source buffer configuration.

param base LCDIFv2 peripheral base address. param layerIndex Layer layerIndex. param config Pointer to the configuration.

LCDIFV2_SetLut()

status_t LCDIFV2_SetLut	(	LCDIFV2_Type *	base,
		uint8_t	layerIndex,
		const uint32_t *	lutData,
		uint16_t	count,
		bool	useShadowLoad
	)

Set the LUT data.

This function sets the specific layer LUT data, if useShadowLoad is true, call LCDIFV2_TriggerLayerShadowLoad after this function, the LUT will be loaded to the hardware during next vertical blanking period. If useShadowLoad is false, the LUT data is loaded to hardware directly.

Parameters

base	LCDIF v2 peripheral base address.
layerIndex	Which layer to set.
lutData	The LUT data to load.
count	Count of lutData.
useShadowLoad	Use shadow load.

Return values

kStatus_Success	Set success.
kStatus_Fail	Previous LUT data is not loaded to hardware yet.

brief Set the LUT data.

This function sets the specific layer LUT data, if useShadowLoad is true, call LCDIFV2_TriggerLayerShadowLoad after this function, the LUT will be loaded to the hardware during next vertical blanking period. If useShadowLoad is false, the LUT data is loaded to hardware directly.

param base LCDIF v2 peripheral base address. param layerIndex Which layer to set. param lutData The LUT data to load. param count Count of lutData. retval kStatus_Success Set success. retval kStatus_Fail Previous LUT data is not loaded to hardware yet.

Variable Documentation

alphaMode

lcdifv2_alpha_mode_t _lcdifv2_blend_config::alphaMode

Alpha mode.

globalAlpha

uint8_t _lcdifv2_blend_config::globalAlpha

Global alpha value, only used when alphaMode is kLCDIFV2_AlphaOverride or kLCDIFV2_AlphaPoterDuff

hbp

uint8_t _lcdifv2_display_config::hbp

Horizontal back porch.

hfp

uint8_t _lcdifv2_display_config::hfp

Horizontal front porch.

hsw

uint8_t _lcdifv2_display_config::hsw

HSYNC pulse width.

lineOrder

lcdifv2_line_order_t _lcdifv2_display_config::lineOrder

Line order.

panelHeight

uint16_t _lcdifv2_display_config::panelHeight

Display panel height, how many lines per panel.

panelWidth

uint16_t _lcdifv2_display_config::panelWidth

Display panel width, pixels per line.

pdAlphaMode

lcdifv2_pd_alpha_mode_t _lcdifv2_blend_config::pdAlphaMode

PoterDuff alpha mode, only used when alphaMode is kLCDIFV2_AlphaPoterDuff

pdColorMode

lcdifv2_pd_color_mode_t _lcdifv2_blend_config::pdColorMode

PoterDuff color mode, only used when alphaMode is kLCDIFV2_AlphaPoterDuff

pdFactorMode

lcdifv2_pd_factor_mode_t _lcdifv2_blend_config::pdFactorMode

PoterDuff factor mode, only used when alphaMode is kLCDIFV2_AlphaPoterDuff

pdGlobalAlphaMode

lcdifv2_pd_global_alpha_mode_t _lcdifv2_blend_config::pdGlobalAlphaMode

PoterDuff global alpha mode, only used when alphaMode is kLCDIFV2_AlphaPoterDuff

pixelFormat

lcdifv2_pixel_format_t _lcdifv2_buffer_config::pixelFormat

Source buffer pixel format.

polarityFlags

uint32_t _lcdifv2_display_config::polarityFlags

OR'ed value of _lcdifv2_polarity_flags, used to contol the signal polarity.

strideBytes

uint16_t _lcdifv2_buffer_config::strideBytes

Number of bytes between two vertically adjacent pixels, suggest 64-bit aligned.

vbp

uint8_t _lcdifv2_display_config::vbp

Vertical back porch.

vfp

uint8_t _lcdifv2_display_config::vfp

Vrtical front porch.

vsw

uint8_t _lcdifv2_display_config::vsw

VSYNC pulse width.