This file is part of the interface (glue layer) between an Embedded Wizard generated UI application and the board support package (BSP) of a dedicated target. Please note: The implementation of this module is partially based on examples that are provided within the STM32 cube firmware. In case you want to adapt this module to your custom specific hardware, please adapt the hardware initialization code according your needs or integrate the generated initialization code created by using the tool CubeMX. This template is responsible to initialize the display hardware of the board and to provide the necessary access to update the display content. More...

#include "ewconfig.h"
#include "stm32h7xx_hal.h"
#include "stm32h747i_discovery.h"
#include "stm32h747i_discovery_bus.h"
#include "stm32h747i_discovery_lcd.h"
#include <string.h>
#include "ewrte.h"
#include "ew_bsp_graphics.h"
#include "ew_bsp_display.h"
#include "ew_bsp_clock.h"

Include dependency graph for ew_bsp_display.c:

Macros
#define	LAYER_INDEX 0

#define	VSYNC 1

#define	VBP 1

#define	VFP 1

#define	HSYNC 1

#define	HBP 1

#define	HFP 1

#define	NO_AREA 0

#define	LEFT_AREA 1

#define	RIGHT_AREA 2

#define	hltdc_handle hlcd_ltdc

#define	hdsi_handle hlcd_dsi

#define	__DSI_MASK_TE() (GPIOJ->AFR[0] &= (0xFFFFF0FFU))

#define	__DSI_UNMASK_TE()

#define	DSI_COLOR_CODING DSI_RGB888

#define	OTM8009A_FORMAT OTM8009A_FORMAT_RGB888

Functions
void	LCD_MspInit (void)
	LCD Intialization. More...

static void	LCD_DisplayOn (void)
	LCD ON. More...

static void	LCD_DisplayOff (void)
	LCD OFF. More...

static int32_t	DSI_IO_Write (uint16_t ChannelNbr, uint16_t Reg, uint8_t *pData, uint16_t Size)
	DCS or Generic short/long write command. More...

static int32_t	DSI_IO_Read (uint16_t ChannelNbr, uint16_t Reg, uint8_t *pData, uint16_t Size)
	DCS or Generic read command. More...

void	LTDC_IRQHandler (void)

void	LTDC_ER_IRQHandler (void)

void	DSI_IRQHandler (void)

void	HAL_DSI_TearingEffectCallback (DSI_HandleTypeDef *hdsi)

void	HAL_DSI_EndOfRefreshCallback (DSI_HandleTypeDef *hdsi)

static void	WaitForDsiTransfer (void)

int	EwBspDisplayInit (XDisplayInfo *aDisplayInfo)
	The function EwBspDisplayInit initializes the display hardware and returns the display parameter. More...

void	EwBspDisplayDone (void)
	The function EwBspDisplayDone deinitializes the display hardware. More...

int	EwBspDisplayGetUpdateArea (XRect *aUpdateRect)
	The function EwBspDisplayGetUpdateArea returns the next update area depending on the selected display mode: In case of a synchroneous single-buffer, the function has to return the the rectangular areas that correspond to the horizontal stripes (fields) of the framebuffer. In case of a scratch-pad buffer, the function has to return the subareas that fit into the provided update rectangle. During each display update, this function is called until it returns 0. More...

void	EwBspDisplayWaitForCompletion (void)
	The function EwBspDisplayWaitForCompletion is called from the Graphics Engine to ensure that all pending activities of the display system are completed, so that the rendering of the next frame can start. In case of a double-buffering system, the function has to wait until the V-sync has occured and the pending buffer is used by the display controller. In case of an external display controller, the function has to wait until the transfer (update) of the graphics data has been completed and there are no pending buffers. More...

void	EwBspDisplayCommitBuffer (void *aAddress, int aX, int aY, int aWidth, int aHeight)
	The function EwBspDisplayCommitBuffer is called from the Graphics Engine when the rendering of a certain buffer has been completed. The type of buffer depends on the selected framebuffer concept. If the display is running in a double-buffering mode, the function is called after each buffer update in order to change the currently active framebuffer address. Changing the framebuffer address should be synchronized with V-sync. If the system is using an external graphics controller, this function is responsible to start the transfer of the framebuffer content. More...

void	EwBspDisplaySetClut (unsigned long *aClut)
	The function EwBspDisplaySetClut is called from the Graphics Engine in order to update the hardware CLUT of the current framebuffer. The function is only called when the color format of the framebuffer is Index8 or LumA44. More...

Variables
LTDC_HandleTypeDef	hltdc_handle

DSI_HandleTypeDef	hdsi_handle

static LTDC_LayerCfgTypeDef	LayerConfig

static volatile int32_t	ActiveArea = NO_AREA

static RCC_PeriphCLKInitTypeDef	PeriphClkInitStruct

uint8_t	pColLeft [] = {0x00, 0x00, 0x01, 0x8F}

uint8_t	pColRight [] = {0x01, 0x90, 0x03, 0x1F}

uint8_t	pPage [] = {0x00, 0x00, 0x01, 0xDF}

uint8_t	pScanCol [] = {0x02, 0x15}

static int	FirstUpdateIsDone = 0

Detailed Description

This file is part of the interface (glue layer) between an Embedded Wizard generated UI application and the board support package (BSP) of a dedicated target. Please note: The implementation of this module is partially based on examples that are provided within the STM32 cube firmware. In case you want to adapt this module to your custom specific hardware, please adapt the hardware initialization code according your needs or integrate the generated initialization code created by using the tool CubeMX. This template is responsible to initialize the display hardware of the board and to provide the necessary access to update the display content.

Author: Kevin Bello (k.bel.nosp@m.lo@t.nosp@m.um.de)

Version: 0.1

Date: 2021-04-17

coauthor {name}

Macros

Functions

Variables

Detailed Description