604 lines
15 KiB
C
604 lines
15 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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* 2017-06-08 tanek 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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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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static void ili9341_write_reg(rt_uint16_t regval)
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{
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ili9341->reg = regval;
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}
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static void ili9341_write_data(rt_uint16_t data)
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{
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ili9341->ram = data;
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}
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rt_uint16_t ili9341_read_ram(void)
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{
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return ili9341->ram;
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}
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static void ili9341_write_reg_with_value(rt_uint16_t reg, rt_uint16_t regValue)
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{
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ili9341->reg = reg;
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ili9341->ram = regValue;
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}
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static void ili9341_write_ram_prepare(void)
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{
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ili9341->reg = lcddev.wramcmd;
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}
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rt_uint16_t ili9341_bgr2rgb(rt_uint16_t value)
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{
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rt_uint16_t red, green, blue;
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blue = (value >> 0) & 0x1f;
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green = (value >> 5) & 0x3f;
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red = (value >> 11) & 0x1f;
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return (blue << 11) + (green << 5) + (red << 0);
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}
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static void ili9341_set_cursor(rt_uint16_t Xpos, rt_uint16_t Ypos)
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{
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ili9341_write_reg(lcddev.setxcmd);
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ili9341_write_data(Xpos >> 8);
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ili9341_write_data(Xpos & 0XFF);
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ili9341_write_reg(lcddev.setycmd);
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ili9341_write_data(Ypos >> 8);
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ili9341_write_data(Ypos & 0XFF);
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}
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static void ili9341_set_scan_direction(rt_uint8_t dir)
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{
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rt_uint16_t regval = 0;
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rt_uint16_t dirreg = 0;
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rt_uint16_t temp;
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switch (dir)
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{
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case L2R_U2D://从左到右,从上到下
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regval |= (0 << 7) | (0 << 6) | (0 << 5);
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break;
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case L2R_D2U://从左到右,从下到上
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regval |= (1 << 7) | (0 << 6) | (0 << 5);
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break;
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case R2L_U2D://从右到左,从上到下
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regval |= (0 << 7) | (1 << 6) | (0 << 5);
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break;
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case R2L_D2U://从右到左,从下到上
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regval |= (1 << 7) | (1 << 6) | (0 << 5);
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break;
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case U2D_L2R://从上到下,从左到右
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regval |= (0 << 7) | (0 << 6) | (1 << 5);
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break;
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case U2D_R2L://从上到下,从右到左
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regval |= (0 << 7) | (1 << 6) | (1 << 5);
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break;
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case D2U_L2R://从下到上,从左到右
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regval |= (1 << 7) | (0 << 6) | (1 << 5);
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break;
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case D2U_R2L://从下到上,从右到左
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regval |= (1 << 7) | (1 << 6) | (1 << 5);
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break;
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}
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dirreg = 0X36;
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ili9341_write_reg_with_value(dirreg, regval);
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if (regval & 0X20)
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{
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if (lcddev.width < lcddev.height)//交换X,Y
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{
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temp = lcddev.width;
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lcddev.width = lcddev.height;
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lcddev.height = temp;
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}
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}
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else
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{
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if (lcddev.width > lcddev.height)//交换X,Y
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{
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temp = lcddev.width;
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lcddev.width = lcddev.height;
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lcddev.height = temp;
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}
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}
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ili9341_write_reg(lcddev.setxcmd);
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ili9341_write_data(0);
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ili9341_write_data(0);
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ili9341_write_data((lcddev.width - 1) >> 8);
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ili9341_write_data((lcddev.width - 1) & 0XFF);
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ili9341_write_reg(lcddev.setycmd);
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ili9341_write_data(0);
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ili9341_write_data(0);
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ili9341_write_data((lcddev.height - 1) >> 8);
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ili9341_write_data((lcddev.height - 1) & 0XFF);
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}
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void ili9341_set_backlight(rt_uint8_t pwm)
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{
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ili9341_write_reg(0xBE);
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ili9341_write_data(0x05);
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ili9341_write_data(pwm*2.55);
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ili9341_write_data(0x01);
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ili9341_write_data(0xFF);
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ili9341_write_data(0x00);
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ili9341_write_data(0x00);
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}
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void ili9341_set_display_direction(rt_uint8_t dir)
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{
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lcddev.dir = dir;
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if (dir == 0)
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{
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lcddev.width = 240;
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lcddev.height = 320;
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}
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else
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{
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lcddev.width = 320;
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lcddev.height = 240;
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}
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lcddev.wramcmd = 0X2C;
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lcddev.setxcmd = 0X2A;
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lcddev.setycmd = 0X2B;
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ili9341_set_scan_direction(DFT_SCAN_DIR);
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}
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void HAL_SRAM_MspInit(SRAM_HandleTypeDef *hsram)
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{
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GPIO_InitTypeDef GPIO_Initure;
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__HAL_RCC_FMC_CLK_ENABLE();
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__HAL_RCC_GPIOD_CLK_ENABLE();
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__HAL_RCC_GPIOE_CLK_ENABLE();
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//init PD0,1,4,5,7,8,9,10,13,14,15
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GPIO_Initure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_7 | GPIO_PIN_8 | \
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GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
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GPIO_Initure.Mode = GPIO_MODE_AF_PP;
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GPIO_Initure.Pull = GPIO_PULLUP;
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GPIO_Initure.Speed = GPIO_SPEED_HIGH;
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GPIO_Initure.Alternate = GPIO_AF12_FMC;
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HAL_GPIO_Init(GPIOD, &GPIO_Initure);
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//init PE7,8,9,10,11,12,13,14,15
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GPIO_Initure.Pin = GPIO_PIN_7 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | \
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GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
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HAL_GPIO_Init(GPIOE, &GPIO_Initure);
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}
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SRAM_HandleTypeDef SRAM_Handler;
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void _lcd_low_level_init(void)
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{
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GPIO_InitTypeDef GPIO_Initure;
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FMC_NORSRAM_TimingTypeDef FMC_ReadWriteTim;
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FMC_NORSRAM_TimingTypeDef FMC_WriteTim;
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__HAL_RCC_GPIOB_CLK_ENABLE();
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GPIO_Initure.Pin = GPIO_PIN_5;
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GPIO_Initure.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_Initure.Pull = GPIO_PULLUP;
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GPIO_Initure.Speed = GPIO_SPEED_HIGH;
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HAL_GPIO_Init(GPIOB, &GPIO_Initure);
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SRAM_Handler.Instance = FMC_NORSRAM_DEVICE;
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SRAM_Handler.Extended = FMC_NORSRAM_EXTENDED_DEVICE;
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SRAM_Handler.Init.NSBank = FMC_NORSRAM_BANK1;
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SRAM_Handler.Init.DataAddressMux = FMC_DATA_ADDRESS_MUX_DISABLE;
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SRAM_Handler.Init.MemoryType = FMC_MEMORY_TYPE_SRAM;
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SRAM_Handler.Init.MemoryDataWidth = FMC_NORSRAM_MEM_BUS_WIDTH_16;
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SRAM_Handler.Init.BurstAccessMode = FMC_BURST_ACCESS_MODE_DISABLE;
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SRAM_Handler.Init.WaitSignalPolarity = FMC_WAIT_SIGNAL_POLARITY_LOW;
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SRAM_Handler.Init.WaitSignalActive = FMC_WAIT_TIMING_BEFORE_WS;
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SRAM_Handler.Init.WriteOperation = FMC_WRITE_OPERATION_ENABLE;
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SRAM_Handler.Init.WaitSignal = FMC_WAIT_SIGNAL_DISABLE;
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SRAM_Handler.Init.ExtendedMode = FMC_EXTENDED_MODE_ENABLE;
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SRAM_Handler.Init.AsynchronousWait = FMC_ASYNCHRONOUS_WAIT_DISABLE;
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SRAM_Handler.Init.WriteBurst = FMC_WRITE_BURST_DISABLE;
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SRAM_Handler.Init.ContinuousClock = FMC_CONTINUOUS_CLOCK_SYNC_ASYNC;
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FMC_ReadWriteTim.AddressSetupTime = 0x0F;
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FMC_ReadWriteTim.AddressHoldTime = 0x00;
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FMC_ReadWriteTim.DataSetupTime = 0x46;
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FMC_ReadWriteTim.AccessMode = FMC_ACCESS_MODE_A;
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FMC_WriteTim.AddressSetupTime = 0x0F;
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FMC_WriteTim.AddressHoldTime = 0x00;
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FMC_WriteTim.DataSetupTime = 0x0F;
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FMC_WriteTim.AccessMode = FMC_ACCESS_MODE_A;
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HAL_SRAM_Init(&SRAM_Handler, &FMC_ReadWriteTim, &FMC_WriteTim);
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delay_ms(50);
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ili9341_write_reg(0XD3);
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lcddev.id = ili9341_read_ram();
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lcddev.id = ili9341_read_ram();
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lcddev.id = ili9341_read_ram();
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lcddev.id <<= 8;
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lcddev.id |= ili9341_read_ram();
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DEBUG_PRINTF(" LCD ID:%x\r\n", lcddev.id); //打印LCD ID
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ili9341_write_reg(0xCF);
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ili9341_write_data(0x00);
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ili9341_write_data(0xC1);
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ili9341_write_data(0X30);
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ili9341_write_reg(0xED);
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ili9341_write_data(0x64);
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ili9341_write_data(0x03);
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ili9341_write_data(0X12);
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ili9341_write_data(0X81);
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ili9341_write_reg(0xE8);
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ili9341_write_data(0x85);
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ili9341_write_data(0x10);
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ili9341_write_data(0x7A);
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ili9341_write_reg(0xCB);
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ili9341_write_data(0x39);
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ili9341_write_data(0x2C);
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ili9341_write_data(0x00);
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ili9341_write_data(0x34);
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ili9341_write_data(0x02);
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ili9341_write_reg(0xF7);
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ili9341_write_data(0x20);
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ili9341_write_reg(0xEA);
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ili9341_write_data(0x00);
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ili9341_write_data(0x00);
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ili9341_write_reg(0xC0); //Power control
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ili9341_write_data(0x1B); //VRH[5:0]
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ili9341_write_reg(0xC1); //Power control
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ili9341_write_data(0x01); //SAP[2:0];BT[3:0]
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ili9341_write_reg(0xC5); //VCM control
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ili9341_write_data(0x30); //3F
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ili9341_write_data(0x30); //3C
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ili9341_write_reg(0xC7); //VCM control2
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ili9341_write_data(0XB7);
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ili9341_write_reg(0x36); // memory access control
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ili9341_write_data(0x08); // change here
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ili9341_write_reg(0x3A);
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ili9341_write_data(0x55);
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ili9341_write_reg(0xB1);
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ili9341_write_data(0x00);
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ili9341_write_data(0x1A);
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ili9341_write_reg(0xB6); //display function control
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ili9341_write_data(0x0A);
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ili9341_write_data(0xA2);
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ili9341_write_reg(0xF2); //3gamma function disable
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ili9341_write_data(0x00);
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ili9341_write_reg(0x26); //gamma curve selected
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ili9341_write_data(0x01);
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ili9341_write_reg(0xE0); //set gamma
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ili9341_write_data(0x0F);
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ili9341_write_data(0x2A);
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ili9341_write_data(0x28);
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ili9341_write_data(0x08);
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ili9341_write_data(0x0E);
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ili9341_write_data(0x08);
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ili9341_write_data(0x54);
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ili9341_write_data(0XA9);
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ili9341_write_data(0x43);
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ili9341_write_data(0x0A);
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ili9341_write_data(0x0F);
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ili9341_write_data(0x00);
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ili9341_write_data(0x00);
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ili9341_write_data(0x00);
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ili9341_write_data(0x00);
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ili9341_write_reg(0XE1); //set gamma
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ili9341_write_data(0x00);
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ili9341_write_data(0x15);
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ili9341_write_data(0x17);
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ili9341_write_data(0x07);
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ili9341_write_data(0x11);
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ili9341_write_data(0x06);
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ili9341_write_data(0x2B);
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ili9341_write_data(0x56);
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ili9341_write_data(0x3C);
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ili9341_write_data(0x05);
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ili9341_write_data(0x10);
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ili9341_write_data(0x0F);
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ili9341_write_data(0x3F);
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ili9341_write_data(0x3F);
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ili9341_write_data(0x0F);
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ili9341_write_reg(0x2B);
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ili9341_write_data(0x00);
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ili9341_write_data(0x00);
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ili9341_write_data(0x01);
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ili9341_write_data(0x3f);
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ili9341_write_reg(0x2A);
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ili9341_write_data(0x00);
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ili9341_write_data(0x00);
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ili9341_write_data(0x00);
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ili9341_write_data(0xef);
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ili9341_write_reg(0x11); //exit sleep
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delay_ms(120);
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ili9341_write_reg(0x29); //display on
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FMC_Bank1E->BWTR[0] &= ~(0XF << 0);
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FMC_Bank1E->BWTR[0] &= ~(0XF << 8);
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FMC_Bank1E->BWTR[0] |= 4 << 0;
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FMC_Bank1E->BWTR[0] |= 4 << 8;
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ili9341_set_display_direction(0);
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HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_SET);
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}
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static rt_err_t lcd_init(rt_device_t dev)
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{
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return RT_EOK;
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}
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static rt_err_t lcd_open(rt_device_t dev, rt_uint16_t oflag)
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{
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return RT_EOK;
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}
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static rt_err_t lcd_close(rt_device_t dev)
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{
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return RT_EOK;
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}
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static rt_err_t lcd_control(rt_device_t dev, rt_uint8_t cmd, void *args)
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{
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switch (cmd)
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{
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case RTGRAPHIC_CTRL_GET_INFO:
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{
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struct rt_device_graphic_info *info;
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info = (struct rt_device_graphic_info*) args;
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RT_ASSERT(info != RT_NULL);
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info->bits_per_pixel = 16;
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info->pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565;
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info->framebuffer = RT_NULL;
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info->width = 240;
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info->height = 320;
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}
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||
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)
|
||
{
|
||
ili9341_set_cursor(x, y);
|
||
ili9341_write_ram_prepare();
|
||
ili9341->ram = *(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)
|
||
{
|
||
rt_uint16_t red = 0;
|
||
rt_uint16_t green = 0;
|
||
rt_uint16_t blue = 0;
|
||
|
||
if (x >= lcddev.width || y >= lcddev.height)
|
||
{
|
||
*(rt_uint16_t*)pixel = 0;
|
||
return;
|
||
}
|
||
|
||
ili9341_set_cursor(x, y);
|
||
|
||
ili9341_write_reg(0X2E);
|
||
ili9341_read_ram();
|
||
red = ili9341_read_ram();
|
||
delay_us(2);
|
||
|
||
blue = ili9341_read_ram();
|
||
green = red & 0XFF;
|
||
|
||
*(rt_uint16_t*)pixel = (((red >> 11) << 11) | ((green >> 10) << 5) | (blue >> 11));
|
||
}
|
||
#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)
|
||
{
|
||
ili9341_set_cursor(x1, y);
|
||
ili9341_write_ram_prepare();
|
||
|
||
for (; x1 < x2; x1++)
|
||
{
|
||
ili9341->ram = *(uint16_t *)pixel;
|
||
}
|
||
}
|
||
#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)
|
||
{
|
||
for (; y1 < y2; y1++)
|
||
{
|
||
ili9341_lcd_set_pixel(pixel, x, y1); //write red data
|
||
}
|
||
}
|
||
#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)
|
||
{
|
||
rt_uint16_t *ptr = (rt_uint16_t*)pixels;
|
||
|
||
ili9341_set_cursor(x, y);
|
||
ili9341_write_ram_prepare();
|
||
|
||
while (size--)
|
||
{
|
||
ili9341->ram = *ptr++;
|
||
}
|
||
}
|
||
#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);
|