rt-thread/bsp/stm32f429-disco/drivers/drv_lcd.h

#ifndef __DRV_LCD_H__
#define __DRV_LCD_H__		

#include <rtdevice.h>
#include "stm32f4xx_hal.h"

#define  ILI9341_HSYNC            ((uint32_t)9)   /* Horizontal synchronization */
#define  ILI9341_HBP              ((uint32_t)29)    /* Horizontal back porch      */ 
#define  ILI9341_HFP              ((uint32_t)2)    /* Horizontal front porch     */
#define  ILI9341_VSYNC            ((uint32_t)1)   /* Vertical synchronization   */
#define  ILI9341_VBP              ((uint32_t)3)    /* Vertical back porch        */
#define  ILI9341_VFP              ((uint32_t)2)    /* Vertical front porch       */


/** 
  * @brief  ILI9341 Registers  
  */

/* Level 1 Commands */
#define LCD_SWRESET             0x01   /* Software Reset */
#define LCD_READ_DISPLAY_ID     0x04   /* Read display identification information */
#define LCD_RDDST               0x09   /* Read Display Status */
#define LCD_RDDPM               0x0A   /* Read Display Power Mode */
#define LCD_RDDMADCTL           0x0B   /* Read Display MADCTL */
#define LCD_RDDCOLMOD           0x0C   /* Read Display Pixel Format */
#define LCD_RDDIM               0x0D   /* Read Display Image Format */
#define LCD_RDDSM               0x0E   /* Read Display Signal Mode */
#define LCD_RDDSDR              0x0F   /* Read Display Self-Diagnostic Result */
#define LCD_SPLIN               0x10   /* Enter Sleep Mode */
#define LCD_SLEEP_OUT           0x11   /* Sleep out register */
#define LCD_PTLON               0x12   /* Partial Mode ON */
#define LCD_NORMAL_MODE_ON      0x13   /* Normal Display Mode ON */
#define LCD_DINVOFF             0x20   /* Display Inversion OFF */
#define LCD_DINVON              0x21   /* Display Inversion ON */
#define LCD_GAMMA               0x26   /* Gamma register */
#define LCD_DISPLAY_OFF         0x28   /* Display off register */
#define LCD_DISPLAY_ON          0x29   /* Display on register */
#define LCD_COLUMN_ADDR         0x2A   /* Colomn address register */ 
#define LCD_PAGE_ADDR           0x2B   /* Page address register */ 
#define LCD_GRAM                0x2C   /* GRAM register */   
#define LCD_RGBSET              0x2D   /* Color SET */   
#define LCD_RAMRD               0x2E   /* Memory Read */   
#define LCD_PLTAR               0x30   /* Partial Area */   
#define LCD_VSCRDEF             0x33   /* Vertical Scrolling Definition */   
#define LCD_TEOFF               0x34   /* Tearing Effect Line OFF */   
#define LCD_TEON                0x35   /* Tearing Effect Line ON */   
#define LCD_MAC                 0x36   /* Memory Access Control register*/
#define LCD_VSCRSADD            0x37   /* Vertical Scrolling Start Address */   
#define LCD_IDMOFF              0x38   /* Idle Mode OFF */   
#define LCD_IDMON               0x39   /* Idle Mode ON */   
#define LCD_PIXEL_FORMAT        0x3A   /* Pixel Format register */
#define LCD_WRITE_MEM_CONTINUE  0x3C   /* Write Memory Continue */   
#define LCD_READ_MEM_CONTINUE   0x3E   /* Read Memory Continue */   
#define LCD_SET_TEAR_SCANLINE   0x44   /* Set Tear Scanline */   
#define LCD_GET_SCANLINE        0x45   /* Get Scanline */   
#define LCD_WDB                 0x51   /* Write Brightness Display register */
#define LCD_RDDISBV             0x52   /* Read Display Brightness */   
#define LCD_WCD                 0x53   /* Write Control Display register*/
#define LCD_RDCTRLD             0x54   /* Read CTRL Display */   
#define LCD_WRCABC              0x55   /* Write Content Adaptive Brightness Control */   
#define LCD_RDCABC              0x56   /* Read Content Adaptive Brightness Control */   
#define LCD_WRITE_CABC          0x5E   /* Write CABC Minimum Brightness */   
#define LCD_READ_CABC           0x5F   /* Read CABC Minimum Brightness */   
#define LCD_READ_ID1            0xDA   /* Read ID1 */
#define LCD_READ_ID2            0xDB   /* Read ID2 */
#define LCD_READ_ID3            0xDC   /* Read ID3 */

/* Level 2 Commands */
#define LCD_RGB_INTERFACE       0xB0   /* RGB Interface Signal Control */
#define LCD_FRMCTR1             0xB1   /* Frame Rate Control (In Normal Mode) */
#define LCD_FRMCTR2             0xB2   /* Frame Rate Control (In Idle Mode) */
#define LCD_FRMCTR3             0xB3   /* Frame Rate Control (In Partial Mode) */
#define LCD_INVTR               0xB4   /* Display Inversion Control */
#define LCD_BPC                 0xB5   /* Blanking Porch Control register */
#define LCD_DFC                 0xB6   /* Display Function Control register */
#define LCD_ETMOD               0xB7   /* Entry Mode Set */
#define LCD_BACKLIGHT1          0xB8   /* Backlight Control 1 */
#define LCD_BACKLIGHT2          0xB9   /* Backlight Control 2 */
#define LCD_BACKLIGHT3          0xBA   /* Backlight Control 3 */
#define LCD_BACKLIGHT4          0xBB   /* Backlight Control 4 */
#define LCD_BACKLIGHT5          0xBC   /* Backlight Control 5 */
#define LCD_BACKLIGHT7          0xBE   /* Backlight Control 7 */
#define LCD_BACKLIGHT8          0xBF   /* Backlight Control 8 */
#define LCD_POWER1              0xC0   /* Power Control 1 register */
#define LCD_POWER2              0xC1   /* Power Control 2 register */
#define LCD_VCOM1               0xC5   /* VCOM Control 1 register */
#define LCD_VCOM2               0xC7   /* VCOM Control 2 register */
#define LCD_NVMWR               0xD0   /* NV Memory Write */
#define LCD_NVMPKEY             0xD1   /* NV Memory Protection Key */
#define LCD_RDNVM               0xD2   /* NV Memory Status Read */
#define LCD_READ_ID4            0xD3   /* Read ID4 */
#define LCD_PGAMMA              0xE0   /* Positive Gamma Correction register */
#define LCD_NGAMMA              0xE1   /* Negative Gamma Correction register */
#define LCD_DGAMCTRL1           0xE2   /* Digital Gamma Control 1 */
#define LCD_DGAMCTRL2           0xE3   /* Digital Gamma Control 2 */
#define LCD_INTERFACE           0xF6   /* Interface control register */

/* Extend register commands */
#define LCD_POWERA               0xCB   /* Power control A register */
#define LCD_POWERB               0xCF   /* Power control B register */
#define LCD_DTCA                 0xE8   /* Driver timing control A */
#define LCD_DTCB                 0xEA   /* Driver timing control B */
#define LCD_POWER_SEQ            0xED   /* Power on sequence register */
#define LCD_3GAMMA_EN            0xF2   /* 3 Gamma enable register */
#define LCD_PRC                  0xF7   /* Pump ratio control register */

/* Size of read registers */
#define LCD_READ_ID4_SIZE        3      /* Size of Read ID4 */

#define ABS(X)  ((X) > 0 ? (X) : -(X))

#define CSX_Pin GPIO_PIN_2
#define CSX_GPIO_Port GPIOC
#define RDX_Pin GPIO_PIN_12
#define RDX_GPIO_Port GPIOD
#define WRX_DCX_Pin GPIO_PIN_13
#define WRX_DCX_GPIO_Port GPIOD

/* Chip Select macro definition */
#define LCD_CS_LOW()       HAL_GPIO_WritePin(LCD_NCS_GPIO_PORT, LCD_NCS_PIN, GPIO_PIN_RESET)
#define LCD_CS_HIGH()      HAL_GPIO_WritePin(LCD_NCS_GPIO_PORT, LCD_NCS_PIN, GPIO_PIN_SET)

/* Set WRX High to send data */
#define LCD_WRX_LOW()      HAL_GPIO_WritePin(LCD_WRX_GPIO_PORT, LCD_WRX_PIN, GPIO_PIN_RESET)
#define LCD_WRX_HIGH()     HAL_GPIO_WritePin(LCD_WRX_GPIO_PORT, LCD_WRX_PIN, GPIO_PIN_SET)

/* Set WRX High to send data */
#define LCD_RDX_LOW()      HAL_GPIO_WritePin(LCD_RDX_GPIO_PORT, LCD_RDX_PIN, GPIO_PIN_RESET)
#define LCD_RDX_HIGH()     HAL_GPIO_WritePin(LCD_RDX_GPIO_PORT, LCD_RDX_PIN, GPIO_PIN_SET)

/** 
  * @brief  LCD Control pin  
  */ 
#define LCD_NCS_PIN                             GPIO_PIN_2
#define LCD_NCS_GPIO_PORT                       GPIOC
#define LCD_NCS_GPIO_CLK_ENABLE()               __HAL_RCC_GPIOC_CLK_ENABLE()
#define LCD_NCS_GPIO_CLK_DISABLE()              __HAL_RCC_GPIOC_CLK_DISABLE()
/**             
  * @}
  */ 
/** 
  * @brief  LCD Command/data pin  
  */
#define LCD_WRX_PIN                             GPIO_PIN_13
#define LCD_WRX_GPIO_PORT                       GPIOD
#define LCD_WRX_GPIO_CLK_ENABLE()               __HAL_RCC_GPIOD_CLK_ENABLE()
#define LCD_WRX_GPIO_CLK_DISABLE()              __HAL_RCC_GPIOD_CLK_DISABLE()
  
#define LCD_RDX_PIN                             GPIO_PIN_12
#define LCD_RDX_GPIO_PORT                       GPIOD
#define LCD_RDX_GPIO_CLK_ENABLE()               __HAL_RCC_GPIOD_CLK_ENABLE()
#define LCD_RDX_GPIO_CLK_DISABLE()              __HAL_RCC_GPIOD_CLK_DISABLE()
										  
int rt_lcd_init(void);

#endif