946 lines
26 KiB
C
946 lines
26 KiB
C
/*
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* File : drv_lcd.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2009 RT-Thread Develop Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2018-09-13 xuzhuoyi first implementation
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*/
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#include "drv_lcd.h"
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#include <finsh.h>
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//#define DEBUG
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#ifdef DEBUG
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#define DEBUG_PRINTF(...) rt_kprintf(__VA_ARGS__)
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#else
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#define DEBUG_PRINTF(...)
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#endif
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typedef struct
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{
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rt_uint16_t width; //LCD 宽度
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rt_uint16_t height; //LCD 高度
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rt_uint16_t id; //LCD ID
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rt_uint8_t dir; //横屏还是竖屏控制：0，竖屏；1，横屏。
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rt_uint16_t wramcmd; //开始写gram指令
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rt_uint16_t setxcmd; //设置x坐标指令
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rt_uint16_t setycmd; //设置y坐标指令
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} lcd_info_t;
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typedef struct
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{
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volatile rt_uint16_t reg;
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volatile rt_uint16_t ram;
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} lcd_ili9341_t;
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//使用NOR/SRAM的 Bank1.sector1,地址位HADDR[27,26]=00 A18作为数据命令区分线
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//注意设置时STM32内部会右移一位对其!
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#define LCD_ILI9341_BASE ((rt_uint32_t)(0x60000000 | 0x0007FFFE))
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#define ili9341 ((lcd_ili9341_t *) LCD_ILI9341_BASE)
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//////////////////////////////////////////////////////////////////////////////////
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//扫描方向定义
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#define L2R_U2D 0 //从左到右,从上到下
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#define L2R_D2U 1 //从左到右,从下到上
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#define R2L_U2D 2 //从右到左,从上到下
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#define R2L_D2U 3 //从右到左,从下到上
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#define U2D_L2R 4 //从上到下,从左到右
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#define U2D_R2L 5 //从上到下,从右到左
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#define D2U_L2R 6 //从下到上,从左到右
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#define D2U_R2L 7 //从下到上,从右到左
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#define DFT_SCAN_DIR L2R_U2D //默认的扫描方向
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static lcd_info_t lcddev;
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LTDC_HandleTypeDef LtdcHandler;
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static RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
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/* Default LCD configuration with LCD Layer 1 */
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static uint32_t ActiveLayer = 0;
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//LCD_DrvTypeDef *LcdDrv;
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SPI_HandleTypeDef hspi5;
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void delay_us(rt_uint32_t nus)
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{
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//rt_thread_delay(1);
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while (nus--) {
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__NOP();
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}
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}
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void delay_ms(rt_uint32_t nms)
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{
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//rt_thread_delay((RT_TICK_PER_SECOND * nms + 999) / 1000);
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while (nms--)
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{
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int i;
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for (i = 0; i < 10000; i++)
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{
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__NOP();
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}
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}
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}
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/**
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* @brief Selects the LCD Layer.
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* @param LayerIndex: the Layer foreground or background.
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*/
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void BSP_LCD_SelectLayer(uint32_t LayerIndex)
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{
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ActiveLayer = LayerIndex;
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}
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/**
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* @brief Initializes the LTDC MSP.
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*/
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__weak void BSP_LCD_MspInit(void)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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/* Enable the LTDC and DMA2D Clock */
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__HAL_RCC_LTDC_CLK_ENABLE();
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__HAL_RCC_DMA2D_CLK_ENABLE();
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/* Enable GPIOs clock */
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__HAL_RCC_GPIOA_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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__HAL_RCC_GPIOC_CLK_ENABLE();
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__HAL_RCC_GPIOD_CLK_ENABLE();
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__HAL_RCC_GPIOF_CLK_ENABLE();
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__HAL_RCC_GPIOG_CLK_ENABLE();
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/* GPIOs Configuration */
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/*
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+------------------------+-----------------------+----------------------------+
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+ LCD pins assignment +
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+------------------------+-----------------------+----------------------------+
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| LCD_TFT R2 <-> PC.10 | LCD_TFT G2 <-> PA.06 | LCD_TFT B2 <-> PD.06 |
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| LCD_TFT R3 <-> PB.00 | LCD_TFT G3 <-> PG.10 | LCD_TFT B3 <-> PG.11 |
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| LCD_TFT R4 <-> PA.11 | LCD_TFT G4 <-> PB.10 | LCD_TFT B4 <-> PG.12 |
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| LCD_TFT R5 <-> PA.12 | LCD_TFT G5 <-> PB.11 | LCD_TFT B5 <-> PA.03 |
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| LCD_TFT R6 <-> PB.01 | LCD_TFT G6 <-> PC.07 | LCD_TFT B6 <-> PB.08 |
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| LCD_TFT R7 <-> PG.06 | LCD_TFT G7 <-> PD.03 | LCD_TFT B7 <-> PB.09 |
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-------------------------------------------------------------------------------
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| LCD_TFT HSYNC <-> PC.06 | LCDTFT VSYNC <-> PA.04 |
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| LCD_TFT CLK <-> PG.07 | LCD_TFT DE <-> PF.10 |
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-----------------------------------------------------
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*/
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/* GPIOA configuration */
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GPIO_InitStructure.Pin = GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_6 |
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GPIO_PIN_11 | GPIO_PIN_12;
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GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStructure.Pull = GPIO_NOPULL;
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GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
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GPIO_InitStructure.Alternate= GPIO_AF14_LTDC;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);
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/* GPIOB configuration */
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GPIO_InitStructure.Pin = GPIO_PIN_8 | \
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GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStructure);
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/* GPIOC configuration */
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GPIO_InitStructure.Pin = GPIO_PIN_6 | GPIO_PIN_7 | GPIO_PIN_10;
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HAL_GPIO_Init(GPIOC, &GPIO_InitStructure);
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/* GPIOD configuration */
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GPIO_InitStructure.Pin = GPIO_PIN_3 | GPIO_PIN_6;
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HAL_GPIO_Init(GPIOD, &GPIO_InitStructure);
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/* GPIOF configuration */
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GPIO_InitStructure.Pin = GPIO_PIN_10;
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HAL_GPIO_Init(GPIOF, &GPIO_InitStructure);
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/* GPIOG configuration */
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GPIO_InitStructure.Pin = GPIO_PIN_6 | GPIO_PIN_7 | \
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GPIO_PIN_11;
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HAL_GPIO_Init(GPIOG, &GPIO_InitStructure);
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/* GPIOB configuration */
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GPIO_InitStructure.Pin = GPIO_PIN_0 | GPIO_PIN_1;
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GPIO_InitStructure.Alternate= GPIO_AF9_LTDC;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStructure);
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/* GPIOG configuration */
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GPIO_InitStructure.Pin = GPIO_PIN_10 | GPIO_PIN_12;
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HAL_GPIO_Init(GPIOG, &GPIO_InitStructure);
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}
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/**
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* @brief Writes a byte to device.
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* @param Value: value to be written
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*/
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static void SPIx_Write(uint16_t Value)
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{
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HAL_StatusTypeDef status = HAL_OK;
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status = HAL_SPI_Transmit(&hspi5, (uint8_t*) &Value, 1, 0x1000);
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/* Check the communication status */
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if(status != HAL_OK)
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{
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/* Re-Initialize the BUS */
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//SPIx_Error();
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}
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}
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/**
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* @brief Reads 4 bytes from device.
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* @param ReadSize: Number of bytes to read (max 4 bytes)
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* @retval Value read on the SPI
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*/
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static uint32_t SPIx_Read(uint8_t ReadSize)
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{
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HAL_StatusTypeDef status = HAL_OK;
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uint32_t readvalue;
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status = HAL_SPI_Receive(&hspi5, (uint8_t*) &readvalue, ReadSize, 0x1000);
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/* Check the communication status */
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if(status != HAL_OK)
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{
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/* Re-Initialize the BUS */
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//SPIx_Error();
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}
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return readvalue;
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}
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/**
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* @brief Configures the LCD_SPI interface.
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*/
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__weak void LCD_IO_Init(void)
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{
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/* Set or Reset the control line */
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LCD_CS_LOW();
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LCD_CS_HIGH();
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/* SPI5 parameter configuration*/
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hspi5.Instance = SPI5;
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hspi5.Init.Mode = SPI_MODE_MASTER;
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hspi5.Init.Direction = SPI_DIRECTION_2LINES;
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hspi5.Init.DataSize = SPI_DATASIZE_8BIT;
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hspi5.Init.CLKPolarity = SPI_POLARITY_LOW;
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hspi5.Init.CLKPhase = SPI_PHASE_1EDGE;
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hspi5.Init.NSS = SPI_NSS_SOFT;
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hspi5.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
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hspi5.Init.FirstBit = SPI_FIRSTBIT_MSB;
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hspi5.Init.TIMode = SPI_TIMODE_DISABLE;
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hspi5.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
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hspi5.Init.CRCPolynomial = 10;
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if (HAL_SPI_Init(&hspi5) != HAL_OK)
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{
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//_Error_Handler(__FILE__, __LINE__);
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}
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}
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/**
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* @brief Writes to the selected LCD register.
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* @param LCD_Reg: address of the selected register.
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* @retval None
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*/
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void ili9341_WriteReg(uint8_t LCD_Reg)
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{
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/* Reset WRX to send command */
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LCD_WRX_LOW();
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/* Reset LCD control line(/CS) and Send command */
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LCD_CS_LOW();
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SPIx_Write(LCD_Reg);
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/* Deselect: Chip Select high */
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LCD_CS_HIGH();
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}
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/**
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* @brief Writes data to the selected LCD register.
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* @param LCD_Reg: address of the selected register.
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* @retval None
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*/
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void ili9341_WriteData(uint16_t RegValue)
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{
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/* Set WRX to send data */
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LCD_WRX_HIGH();
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/* Reset LCD control line(/CS) and Send data */
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LCD_CS_LOW();
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SPIx_Write(RegValue);
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/* Deselect: Chip Select high */
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LCD_CS_HIGH();
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}
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/**
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* @brief Reads the selected LCD Register.
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* @param RegValue: Address of the register to read
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* @param ReadSize: Number of bytes to read
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* @retval LCD Register Value.
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*/
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uint32_t ili9341_ReadData(uint16_t RegValue, uint8_t ReadSize)
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{
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uint32_t readvalue = 0;
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/* Select: Chip Select low */
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LCD_CS_LOW();
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/* Reset WRX to send command */
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LCD_WRX_LOW();
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SPIx_Write(RegValue);
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readvalue = SPIx_Read(ReadSize);
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/* Set WRX to send data */
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LCD_WRX_HIGH();
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/* Deselect: Chip Select high */
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LCD_CS_HIGH();
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return readvalue;
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}
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/**
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* @brief Enables the Display.
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*/
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void BSP_LCD_DisplayOn(void)
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{
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/* Display On */
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ili9341_WriteReg(LCD_DISPLAY_ON);
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}
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/**
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* @brief Disables the Display.
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*/
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void BSP_LCD_DisplayOff(void)
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{
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/* Display Off */
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ili9341_WriteReg(LCD_DISPLAY_OFF);
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}
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void ili9341_Init(void)
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{
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/* Initialize ILI9341 low level bus layer ----------------------------------*/
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LCD_IO_Init();
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/* Configure LCD */
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ili9341_WriteReg(0xCA);
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ili9341_WriteData(0xC3);
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ili9341_WriteData(0x08);
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ili9341_WriteData(0x50);
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ili9341_WriteReg(LCD_POWERB);
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ili9341_WriteData(0x00);
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ili9341_WriteData(0xC1);
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ili9341_WriteData(0x30);
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ili9341_WriteReg(LCD_POWER_SEQ);
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ili9341_WriteData(0x64);
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ili9341_WriteData(0x03);
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ili9341_WriteData(0x12);
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ili9341_WriteData(0x81);
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ili9341_WriteReg(LCD_DTCA);
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ili9341_WriteData(0x85);
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ili9341_WriteData(0x00);
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ili9341_WriteData(0x78);
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ili9341_WriteReg(LCD_POWERA);
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ili9341_WriteData(0x39);
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ili9341_WriteData(0x2C);
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ili9341_WriteData(0x00);
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ili9341_WriteData(0x34);
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ili9341_WriteData(0x02);
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ili9341_WriteReg(LCD_PRC);
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ili9341_WriteData(0x20);
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ili9341_WriteReg(LCD_DTCB);
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ili9341_WriteData(0x00);
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ili9341_WriteData(0x00);
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ili9341_WriteReg(LCD_FRMCTR1);
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ili9341_WriteData(0x00);
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ili9341_WriteData(0x1B);
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ili9341_WriteReg(LCD_DFC);
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ili9341_WriteData(0x0A);
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ili9341_WriteData(0xA2);
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ili9341_WriteReg(LCD_POWER1);
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ili9341_WriteData(0x10);
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ili9341_WriteReg(LCD_POWER2);
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ili9341_WriteData(0x10);
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ili9341_WriteReg(LCD_VCOM1);
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ili9341_WriteData(0x45);
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ili9341_WriteData(0x15);
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ili9341_WriteReg(LCD_VCOM2);
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ili9341_WriteData(0x90);
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ili9341_WriteReg(LCD_MAC);
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ili9341_WriteData(0xC8);
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ili9341_WriteReg(LCD_3GAMMA_EN);
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ili9341_WriteData(0x00);
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ili9341_WriteReg(LCD_RGB_INTERFACE);
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ili9341_WriteData(0xC2);
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ili9341_WriteReg(LCD_DFC);
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ili9341_WriteData(0x0A);
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ili9341_WriteData(0xA7);
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ili9341_WriteData(0x27);
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ili9341_WriteData(0x04);
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/* Colomn address set */
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ili9341_WriteReg(LCD_COLUMN_ADDR);
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ili9341_WriteData(0x00);
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ili9341_WriteData(0x00);
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ili9341_WriteData(0x00);
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ili9341_WriteData(0xEF);
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/* Page address set */
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ili9341_WriteReg(LCD_PAGE_ADDR);
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ili9341_WriteData(0x00);
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ili9341_WriteData(0x00);
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ili9341_WriteData(0x01);
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ili9341_WriteData(0x3F);
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ili9341_WriteReg(LCD_INTERFACE);
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ili9341_WriteData(0x01);
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ili9341_WriteData(0x00);
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ili9341_WriteData(0x06);
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ili9341_WriteReg(LCD_GRAM);
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delay_ms(200);
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ili9341_WriteReg(LCD_GAMMA);
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ili9341_WriteData(0x01);
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ili9341_WriteReg(LCD_PGAMMA);
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ili9341_WriteData(0x0F);
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ili9341_WriteData(0x29);
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ili9341_WriteData(0x24);
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ili9341_WriteData(0x0C);
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ili9341_WriteData(0x0E);
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ili9341_WriteData(0x09);
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ili9341_WriteData(0x4E);
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ili9341_WriteData(0x78);
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ili9341_WriteData(0x3C);
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ili9341_WriteData(0x09);
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ili9341_WriteData(0x13);
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ili9341_WriteData(0x05);
|
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ili9341_WriteData(0x17);
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ili9341_WriteData(0x11);
|
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ili9341_WriteData(0x00);
|
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ili9341_WriteReg(LCD_NGAMMA);
|
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ili9341_WriteData(0x00);
|
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ili9341_WriteData(0x16);
|
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ili9341_WriteData(0x1B);
|
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ili9341_WriteData(0x04);
|
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ili9341_WriteData(0x11);
|
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ili9341_WriteData(0x07);
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ili9341_WriteData(0x31);
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ili9341_WriteData(0x33);
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ili9341_WriteData(0x42);
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ili9341_WriteData(0x05);
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ili9341_WriteData(0x0C);
|
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ili9341_WriteData(0x0A);
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ili9341_WriteData(0x28);
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ili9341_WriteData(0x2F);
|
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ili9341_WriteData(0x0F);
|
||
|
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ili9341_WriteReg(LCD_SLEEP_OUT);
|
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delay_ms(200);
|
||
ili9341_WriteReg(LCD_DISPLAY_ON);
|
||
/* GRAM start writing */
|
||
ili9341_WriteReg(LCD_GRAM);
|
||
}
|
||
|
||
/**
|
||
* @brief Initializes the LCD layers.
|
||
* @param LayerIndex: the layer foreground or background.
|
||
* @param FB_Address: the layer frame buffer.
|
||
*/
|
||
void BSP_LCD_LayerDefaultInit(uint16_t LayerIndex, uint32_t FB_Address)
|
||
{
|
||
LTDC_LayerCfgTypeDef Layercfg;
|
||
|
||
/* Layer Init */
|
||
Layercfg.WindowX0 = 0;
|
||
Layercfg.WindowX1 = 240;
|
||
Layercfg.WindowY0 = 0;
|
||
Layercfg.WindowY1 = 320;
|
||
Layercfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
|
||
Layercfg.FBStartAdress = FB_Address;
|
||
Layercfg.Alpha = 255;
|
||
Layercfg.Alpha0 = 0;
|
||
Layercfg.Backcolor.Blue = 0;
|
||
Layercfg.Backcolor.Green = 0;
|
||
Layercfg.Backcolor.Red = 0;
|
||
Layercfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
|
||
Layercfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
|
||
Layercfg.ImageWidth = 240;
|
||
Layercfg.ImageHeight = 320;
|
||
|
||
HAL_LTDC_ConfigLayer(&LtdcHandler, &Layercfg, LayerIndex);
|
||
|
||
//DrawProp[LayerIndex].BackColor = LCD_COLOR_WHITE;
|
||
//DrawProp[LayerIndex].pFont = &Font24;
|
||
//DrawProp[LayerIndex].TextColor = LCD_COLOR_BLACK;
|
||
|
||
/* Dithering activation */
|
||
HAL_LTDC_EnableDither(&LtdcHandler);
|
||
}
|
||
|
||
uint8_t BSP_LCD_Init(void)
|
||
{
|
||
/* On STM32F429I-DISCO, it is not possible to read ILI9341 ID because */
|
||
/* PIN EXTC is not connected to VDD and then LCD_READ_ID4 is not accessible. */
|
||
/* In this case, ReadID function is bypassed.*/
|
||
/*if(ili9341_drv.ReadID() == ILI9341_ID)*/
|
||
|
||
/* LTDC Configuration ----------------------------------------------------*/
|
||
LtdcHandler.Instance = LTDC;
|
||
|
||
/* Timing configuration (Typical configuration from ILI9341 datasheet)
|
||
HSYNC=10 (9+1)
|
||
HBP=20 (29-10+1)
|
||
ActiveW=240 (269-20-10+1)
|
||
HFP=10 (279-240-20-10+1)
|
||
|
||
VSYNC=2 (1+1)
|
||
VBP=2 (3-2+1)
|
||
ActiveH=320 (323-2-2+1)
|
||
VFP=4 (327-320-2-2+1)
|
||
*/
|
||
|
||
/* Configure horizontal synchronization width */
|
||
LtdcHandler.Init.HorizontalSync = ILI9341_HSYNC;
|
||
/* Configure vertical synchronization height */
|
||
LtdcHandler.Init.VerticalSync = ILI9341_VSYNC;
|
||
/* Configure accumulated horizontal back porch */
|
||
LtdcHandler.Init.AccumulatedHBP = ILI9341_HBP;
|
||
/* Configure accumulated vertical back porch */
|
||
LtdcHandler.Init.AccumulatedVBP = ILI9341_VBP;
|
||
/* Configure accumulated active width */
|
||
LtdcHandler.Init.AccumulatedActiveW = 269;
|
||
/* Configure accumulated active height */
|
||
LtdcHandler.Init.AccumulatedActiveH = 323;
|
||
/* Configure total width */
|
||
LtdcHandler.Init.TotalWidth = 279;
|
||
/* Configure total height */
|
||
LtdcHandler.Init.TotalHeigh = 327;
|
||
|
||
/* Configure R,G,B component values for LCD background color */
|
||
LtdcHandler.Init.Backcolor.Red= 0;
|
||
LtdcHandler.Init.Backcolor.Blue= 0;
|
||
LtdcHandler.Init.Backcolor.Green= 0;
|
||
|
||
/* LCD clock configuration */
|
||
/* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */
|
||
/* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN = 192 Mhz */
|
||
/* PLLLCDCLK = PLLSAI_VCO Output/PLLSAIR = 192/4 = 48 Mhz */
|
||
/* LTDC clock frequency = PLLLCDCLK / LTDC_PLLSAI_DIVR_8 = 48/4 = 6Mhz */
|
||
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
|
||
PeriphClkInitStruct.PLLSAI.PLLSAIN = 192;
|
||
PeriphClkInitStruct.PLLSAI.PLLSAIR = 4;
|
||
PeriphClkInitStruct.PLLSAIDivR = RCC_PLLSAIDIVR_8;
|
||
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
|
||
|
||
/* Polarity */
|
||
LtdcHandler.Init.HSPolarity = LTDC_HSPOLARITY_AL;
|
||
LtdcHandler.Init.VSPolarity = LTDC_VSPOLARITY_AL;
|
||
LtdcHandler.Init.DEPolarity = LTDC_DEPOLARITY_AL;
|
||
LtdcHandler.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
|
||
|
||
BSP_LCD_MspInit();
|
||
HAL_LTDC_Init(&LtdcHandler);
|
||
|
||
/* Select the device */
|
||
//LcdDrv = &ili9341_drv;
|
||
|
||
/* LCD Init */
|
||
ili9341_Init();
|
||
|
||
/* Initialize the SDRAM */
|
||
//BSP_SDRAM_Init();
|
||
|
||
/* Initialize the font */
|
||
//BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
|
||
|
||
return 0;
|
||
}
|
||
|
||
void BSP_LCD_DrawPixel(uint16_t Xpos, uint16_t Ypos, uint32_t RGB_Code)
|
||
{
|
||
/* Write data value to all SDRAM memory */
|
||
*(__IO uint32_t*) (LtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (4*(Ypos*240 + Xpos))) = RGB_Code;
|
||
}
|
||
|
||
void BSP_LCD_DrawLine(uint32_t pixel, uint16_t X1, uint16_t Y1, uint16_t X2, uint16_t Y2)
|
||
{
|
||
int16_t deltax = 0, deltay = 0, x = 0, y = 0, xinc1 = 0, xinc2 = 0,
|
||
yinc1 = 0, yinc2 = 0, den = 0, num = 0, numadd = 0, numpixels = 0,
|
||
curpixel = 0;
|
||
|
||
deltax = ABS(X2 - X1); /* The difference between the x's */
|
||
deltay = ABS(Y2 - Y1); /* The difference between the y's */
|
||
x = X1; /* Start x off at the first pixel */
|
||
y = Y1; /* Start y off at the first pixel */
|
||
|
||
if (X2 >= X1) /* The x-values are increasing */
|
||
{
|
||
xinc1 = 1;
|
||
xinc2 = 1;
|
||
}
|
||
else /* The x-values are decreasing */
|
||
{
|
||
xinc1 = -1;
|
||
xinc2 = -1;
|
||
}
|
||
|
||
if (Y2 >= Y1) /* The y-values are increasing */
|
||
{
|
||
yinc1 = 1;
|
||
yinc2 = 1;
|
||
}
|
||
else /* The y-values are decreasing */
|
||
{
|
||
yinc1 = -1;
|
||
yinc2 = -1;
|
||
}
|
||
|
||
if (deltax >= deltay) /* There is at least one x-value for every y-value */
|
||
{
|
||
xinc1 = 0; /* Don't change the x when numerator >= denominator */
|
||
yinc2 = 0; /* Don't change the y for every iteration */
|
||
den = deltax;
|
||
num = deltax / 2;
|
||
numadd = deltay;
|
||
numpixels = deltax; /* There are more x-values than y-values */
|
||
}
|
||
else /* There is at least one y-value for every x-value */
|
||
{
|
||
xinc2 = 0; /* Don't change the x for every iteration */
|
||
yinc1 = 0; /* Don't change the y when numerator >= denominator */
|
||
den = deltay;
|
||
num = deltay / 2;
|
||
numadd = deltax;
|
||
numpixels = deltay; /* There are more y-values than x-values */
|
||
}
|
||
|
||
for (curpixel = 0; curpixel <= numpixels; curpixel++)
|
||
{
|
||
BSP_LCD_DrawPixel(x, y, pixel); /* Draw the current pixel */
|
||
num += numadd; /* Increase the numerator by the top of the fraction */
|
||
if (num >= den) /* Check if numerator >= denominator */
|
||
{
|
||
num -= den; /* Calculate the new numerator value */
|
||
x += xinc1; /* Change the x as appropriate */
|
||
y += yinc1; /* Change the y as appropriate */
|
||
}
|
||
x += xinc2; /* Change the x as appropriate */
|
||
y += yinc2; /* Change the y as appropriate */
|
||
}
|
||
}
|
||
|
||
rt_uint16_t ili9341_bgr2rgb(rt_uint16_t value)
|
||
{
|
||
rt_uint16_t red, green, blue;
|
||
|
||
blue = (value >> 0) & 0x1f;
|
||
green = (value >> 5) & 0x3f;
|
||
red = (value >> 11) & 0x1f;
|
||
|
||
return (blue << 11) + (green << 5) + (red << 0);
|
||
}
|
||
|
||
//static void ili9341_set_scan_direction(rt_uint8_t dir)
|
||
//{
|
||
// rt_uint16_t regval = 0;
|
||
// rt_uint16_t dirreg = 0;
|
||
// rt_uint16_t temp;
|
||
|
||
// switch (dir)
|
||
// {
|
||
// case L2R_U2D://从左到右,从上到下
|
||
// regval |= (0 << 7) | (0 << 6) | (0 << 5);
|
||
// break;
|
||
// case L2R_D2U://从左到右,从下到上
|
||
// regval |= (1 << 7) | (0 << 6) | (0 << 5);
|
||
// break;
|
||
// case R2L_U2D://从右到左,从上到下
|
||
// regval |= (0 << 7) | (1 << 6) | (0 << 5);
|
||
// break;
|
||
// case R2L_D2U://从右到左,从下到上
|
||
// regval |= (1 << 7) | (1 << 6) | (0 << 5);
|
||
// break;
|
||
// case U2D_L2R://从上到下,从左到右
|
||
// regval |= (0 << 7) | (0 << 6) | (1 << 5);
|
||
// break;
|
||
// case U2D_R2L://从上到下,从右到左
|
||
// regval |= (0 << 7) | (1 << 6) | (1 << 5);
|
||
// break;
|
||
// case D2U_L2R://从下到上,从左到右
|
||
// regval |= (1 << 7) | (0 << 6) | (1 << 5);
|
||
// break;
|
||
// case D2U_R2L://从下到上,从右到左
|
||
// regval |= (1 << 7) | (1 << 6) | (1 << 5);
|
||
// break;
|
||
// }
|
||
|
||
// dirreg = 0X36;
|
||
// ili9341_write_reg_with_value(dirreg, regval);
|
||
|
||
// if (regval & 0X20)
|
||
// {
|
||
// if (lcddev.width < lcddev.height)//交换X,Y
|
||
// {
|
||
// temp = lcddev.width;
|
||
// lcddev.width = lcddev.height;
|
||
// lcddev.height = temp;
|
||
// }
|
||
// }
|
||
// else
|
||
// {
|
||
// if (lcddev.width > lcddev.height)//交换X,Y
|
||
// {
|
||
// temp = lcddev.width;
|
||
// lcddev.width = lcddev.height;
|
||
// lcddev.height = temp;
|
||
// }
|
||
// }
|
||
//
|
||
// ili9341_write_reg(lcddev.setxcmd);
|
||
// ili9341_write_data(0);
|
||
// ili9341_write_data(0);
|
||
// ili9341_write_data((lcddev.width - 1) >> 8);
|
||
// ili9341_write_data((lcddev.width - 1) & 0XFF);
|
||
|
||
// ili9341_write_reg(lcddev.setycmd);
|
||
// ili9341_write_data(0);
|
||
// ili9341_write_data(0);
|
||
// ili9341_write_data((lcddev.height - 1) >> 8);
|
||
// ili9341_write_data((lcddev.height - 1) & 0XFF);
|
||
//}
|
||
|
||
//void ili9341_set_backlight(rt_uint8_t pwm)
|
||
//{
|
||
// ili9341_write_reg(0xBE);
|
||
// ili9341_write_data(0x05);
|
||
// ili9341_write_data(pwm*2.55);
|
||
// ili9341_write_data(0x01);
|
||
// ili9341_write_data(0xFF);
|
||
// ili9341_write_data(0x00);
|
||
// ili9341_write_data(0x00);
|
||
//}
|
||
|
||
//void ili9341_set_display_direction(rt_uint8_t dir)
|
||
//{
|
||
// lcddev.dir = dir;
|
||
// if (dir == 0)
|
||
// {
|
||
// lcddev.width = 240;
|
||
// lcddev.height = 320;
|
||
// }
|
||
// else
|
||
// {
|
||
// lcddev.width = 320;
|
||
// lcddev.height = 240;
|
||
// }
|
||
|
||
// lcddev.wramcmd = 0X2C;
|
||
// lcddev.setxcmd = 0X2A;
|
||
// lcddev.setycmd = 0X2B;
|
||
|
||
// ili9341_set_scan_direction(DFT_SCAN_DIR);
|
||
//}
|
||
|
||
|
||
void _lcd_low_level_init(void)
|
||
{
|
||
BSP_LCD_Init();
|
||
BSP_LCD_LayerDefaultInit(0,0xD0000000);
|
||
BSP_LCD_SelectLayer(0);
|
||
BSP_LCD_DisplayOn();
|
||
lcddev.width = 240;
|
||
lcddev.height = 320;
|
||
//ili9341_set_display_direction(0);
|
||
//HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_SET);
|
||
}
|
||
|
||
|
||
static rt_err_t lcd_init(rt_device_t dev)
|
||
{
|
||
return RT_EOK;
|
||
}
|
||
|
||
static rt_err_t lcd_open(rt_device_t dev, rt_uint16_t oflag)
|
||
{
|
||
return RT_EOK;
|
||
}
|
||
|
||
static rt_err_t lcd_close(rt_device_t dev)
|
||
{
|
||
return RT_EOK;
|
||
}
|
||
|
||
static rt_err_t lcd_control(rt_device_t dev, int cmd, void *args)
|
||
{
|
||
switch (cmd)
|
||
{
|
||
case RTGRAPHIC_CTRL_GET_INFO:
|
||
{
|
||
struct rt_device_graphic_info *info;
|
||
|
||
info = (struct rt_device_graphic_info*) args;
|
||
RT_ASSERT(info != RT_NULL);
|
||
|
||
info->bits_per_pixel = 16;
|
||
info->pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565;
|
||
info->framebuffer = RT_NULL;
|
||
info->width = 240;
|
||
info->height = 320;
|
||
}
|
||
break;
|
||
|
||
case RTGRAPHIC_CTRL_RECT_UPDATE:
|
||
/* nothong to be done */
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
return RT_EOK;
|
||
}
|
||
|
||
static void ili9341_lcd_set_pixel(const char* pixel, int x, int y)
|
||
{
|
||
*(__IO uint32_t*) (LtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (4*(y * 240 + x))) = *(uint16_t *)pixel;
|
||
}
|
||
#ifdef RT_USING_FINSH
|
||
static void lcd_set_pixel(uint16_t color, int x, int y)
|
||
{
|
||
rt_kprintf("lcd set pixel, color: %X, x: %d, y: %d", color, x, y);
|
||
ili9341_lcd_set_pixel((const char *)&color, x, y);
|
||
}
|
||
FINSH_FUNCTION_EXPORT(lcd_set_pixel, set pixel in lcd display);
|
||
#endif
|
||
|
||
static void ili9341_lcd_get_pixel(char* pixel, int x, int y)
|
||
{
|
||
uint32_t ret = 0;
|
||
|
||
if(LtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_ARGB8888)
|
||
{
|
||
/* Read data value from SDRAM memory */
|
||
ret = *(__IO uint32_t*) (LtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (4*(y * 240 + x)));
|
||
}
|
||
else if(LtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB888)
|
||
{
|
||
/* Read data value from SDRAM memory */
|
||
ret = (*(__IO uint32_t*) (LtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (4*(y*240 + x))) & 0x00FFFFFF);
|
||
}
|
||
else if((LtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_RGB565) || \
|
||
(LtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_ARGB4444) || \
|
||
(LtdcHandler.LayerCfg[ActiveLayer].PixelFormat == LTDC_PIXEL_FORMAT_AL88))
|
||
{
|
||
/* Read data value from SDRAM memory */
|
||
ret = *(__IO uint16_t*) (LtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (2*(y*240 + x)));
|
||
}
|
||
else
|
||
{
|
||
/* Read data value from SDRAM memory */
|
||
ret = *(__IO uint8_t*) (LtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (2*(y*240 + x)));
|
||
}
|
||
|
||
*pixel = ret;
|
||
}
|
||
#ifdef RT_USING_FINSH
|
||
static void lcd_get_pixel(int x, int y)
|
||
{
|
||
uint16_t pixel;
|
||
ili9341_lcd_get_pixel((char *)&pixel, x, y);
|
||
rt_kprintf("lcd get pixel, pixel: 0x%X, x: %d, y: %d", pixel, x, y);
|
||
}
|
||
FINSH_FUNCTION_EXPORT(lcd_get_pixel, get pixel in lcd display);
|
||
#endif
|
||
|
||
static void ili9341_lcd_draw_hline(const char* pixel, int x1, int x2, int y)
|
||
{
|
||
BSP_LCD_DrawLine(*pixel, x1, y, x2, y);
|
||
}
|
||
#ifdef RT_USING_FINSH
|
||
static void lcd_draw_hline(uint16_t pixel, int x1, int x2, int y)
|
||
{
|
||
ili9341_lcd_draw_hline((const char *)&pixel, x1, x2, y);
|
||
rt_kprintf("lcd draw hline, pixel: 0x%X, x1: %d, x2: %d, y: %d", pixel, x1, x2, y);
|
||
}
|
||
FINSH_FUNCTION_EXPORT(lcd_draw_hline, draw hline in lcd display);
|
||
#endif
|
||
|
||
static void ili9341_lcd_draw_vline(const char* pixel, int x, int y1, int y2)
|
||
{
|
||
BSP_LCD_DrawLine(*pixel, x, y1, x, y2);
|
||
}
|
||
#ifdef RT_USING_FINSH
|
||
static void lcd_draw_vline(uint16_t pixel, int x, int y1, int y2)
|
||
{
|
||
ili9341_lcd_draw_vline((const char *)&pixel, x, y1, y2);
|
||
rt_kprintf("lcd draw hline, pixel: 0x%X, x: %d, y: %d", pixel, y1, y2);
|
||
}
|
||
FINSH_FUNCTION_EXPORT(lcd_draw_vline, draw vline in lcd display);
|
||
#endif
|
||
|
||
static void ili9341_lcd_blit_line(const char* pixels, int x, int y, rt_size_t size)
|
||
{
|
||
int i = 0;
|
||
while(size--)
|
||
*(__IO uint32_t*) (LtdcHandler.LayerCfg[ActiveLayer].FBStartAdress + (4*(y*240 + x + i++))) = *(uint16_t *)pixels++;
|
||
}
|
||
#ifdef RT_USING_FINSH
|
||
#define LINE_LEN 30
|
||
static void lcd_blit_line(int x, int y)
|
||
{
|
||
uint16_t pixels[LINE_LEN];
|
||
int i;
|
||
|
||
for (i = 0; i < LINE_LEN; i++)
|
||
{
|
||
pixels[i] = i * 40 + 50;
|
||
}
|
||
|
||
ili9341_lcd_blit_line((const char *)pixels, x, y, LINE_LEN);
|
||
rt_kprintf("lcd blit line, x: %d, y: %d", x, y);
|
||
}
|
||
FINSH_FUNCTION_EXPORT(lcd_blit_line, draw blit line in lcd display);
|
||
#endif
|
||
|
||
static int rt_hw_lcd_init(void)
|
||
{
|
||
_lcd_low_level_init();
|
||
|
||
static struct rt_device lcd_device;
|
||
|
||
static struct rt_device_graphic_ops ili9341_ops =
|
||
{
|
||
ili9341_lcd_set_pixel,
|
||
ili9341_lcd_get_pixel,
|
||
ili9341_lcd_draw_hline,
|
||
ili9341_lcd_draw_vline,
|
||
ili9341_lcd_blit_line
|
||
};
|
||
|
||
/* register lcd device */
|
||
lcd_device.type = RT_Device_Class_Graphic;
|
||
lcd_device.init = lcd_init;
|
||
lcd_device.open = lcd_open;
|
||
lcd_device.close = lcd_close;
|
||
lcd_device.control = lcd_control;
|
||
lcd_device.read = RT_NULL;
|
||
lcd_device.write = RT_NULL;
|
||
|
||
lcd_device.user_data = &ili9341_ops;
|
||
|
||
/* register graphic device driver */
|
||
rt_device_register(&lcd_device, "lcd",
|
||
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STANDALONE);
|
||
|
||
return 0;
|
||
}
|
||
INIT_BOARD_EXPORT(rt_hw_lcd_init);
|