335 lines
7.3 KiB
C
335 lines
7.3 KiB
C
#include "drv_st7789.h"
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#include "asm/spi.h"
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extern void delay(unsigned int cnt);
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#define RST_L() gpio_set_output_value(LCD_RST_PIN, 0);
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#define RST_H() gpio_set_output_value(LCD_RST_PIN, 1);
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#define DC_L() gpio_set_output_value(LCD_DC_PIN, 0);
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#define DC_H() gpio_set_output_value(LCD_DC_PIN, 1);
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#define CS_L() gpio_set_output_value(LCD_CS_PIN, 0);
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#define CS_H() gpio_set_output_value(LCD_CS_PIN, 1);
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#define BL_L() gpio_set_output_value(LCD_BL_PIN, 0);
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#define BL_H() gpio_set_output_value(LCD_BL_PIN, 1);
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static void hw_init(void)
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{
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// reset pin
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gpio_set_pull_up(LCD_RST_PIN, 0);
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gpio_set_pull_down(LCD_RST_PIN, 0);
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gpio_set_direction(LCD_RST_PIN, 0);
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RST_L();
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// bl pin
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gpio_set_pull_up(LCD_BL_PIN, 0);
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gpio_set_pull_down(LCD_BL_PIN, 0);
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gpio_set_direction(LCD_BL_PIN, 0);
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BL_L();
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// dc pin
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gpio_set_pull_up(LCD_DC_PIN, 0);
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gpio_set_pull_down(LCD_DC_PIN, 0);
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gpio_set_direction(LCD_DC_PIN, 0);
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DC_H();
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// cs pin
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gpio_set_pull_up(LCD_CS_PIN, 0);
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gpio_set_pull_down(LCD_CS_PIN, 0);
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gpio_set_direction(LCD_CS_PIN, 0);
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CS_H();
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}
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static void lcd_write(u8 *buf, int leng)
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{
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for (int i = 0; i < leng; i++)
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{
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spi_send_byte(LCD_SPI_CFG, buf[i]);
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}
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}
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void lcd_write_data(u8 data)
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{
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DC_H();
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delay(2);
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CS_L();
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delay(2);
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DC_H();
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delay(2);
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lcd_write(&data, 1);
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CS_H();
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}
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void lcd_write_data_ex(u16 dat)
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{
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DC_H();
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delay(2);
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CS_L();
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delay(2);
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DC_H();
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delay(2);
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// lcd_write(&data, 1);
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spi_send_byte(LCD_SPI_CFG, dat >> 8);
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spi_send_byte(LCD_SPI_CFG, dat);
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CS_H();
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// TFTLCD_Writ_Bus(dat>>8);
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// TFTLCD_Writ_Bus(dat);
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}
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void lcd_write_cmd(u8 cmd)
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{
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DC_L();
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delay(2);
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CS_L();
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delay(2);
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DC_L();
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delay(2);
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spi_send_byte(LCD_SPI_CFG, cmd);
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CS_H();
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}
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void lcd_open_window(u16 x1, u16 y1, u16 x2, u16 y2)
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{
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if (USE_HORIZONTAL == 0)
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{
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lcd_write_cmd(0x2a);
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lcd_write_data_ex(x1 + LCD_COLUMN_OFFSET);
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lcd_write_data_ex(x2 + LCD_COLUMN_OFFSET);
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lcd_write_cmd(0x2b);
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lcd_write_data_ex(y1 + LCD_LINE_OFFSET);
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lcd_write_data_ex(y2 + LCD_LINE_OFFSET);
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lcd_write_cmd(0x2c);
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}
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else if (USE_HORIZONTAL == 1)
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{
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lcd_write_cmd(0x2a);
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lcd_write_data_ex(x1 + LCD_COLUMN_OFFSET);
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lcd_write_data_ex(x2 + LCD_COLUMN_OFFSET);
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lcd_write_cmd(0x2b);
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lcd_write_data_ex(y1 + LCD_LINE_OFFSET);
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lcd_write_data_ex(y2 + LCD_LINE_OFFSET);
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lcd_write_cmd(0x2c);
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}
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else if (USE_HORIZONTAL == 2)
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{
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lcd_write_cmd(0x2a);
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lcd_write_data_ex(x1 + LCD_COLUMN_OFFSET);
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lcd_write_data_ex(x2 + LCD_COLUMN_OFFSET);
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lcd_write_cmd(0x2b);
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lcd_write_data_ex(y1 + LCD_LINE_OFFSET);
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lcd_write_data_ex(y2 + LCD_LINE_OFFSET);
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lcd_write_cmd(0x2c);
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}
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else
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{
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lcd_write_cmd(0x2a);
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lcd_write_data_ex(x1);
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lcd_write_data_ex(x2);
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lcd_write_cmd(0x2b);
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lcd_write_data_ex(y1);
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lcd_write_data_ex(y2);
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lcd_write_cmd(0x2c);
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}
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}
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static void st7789_init_cmd(void)
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{
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lcd_write_cmd(0x36);
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if (USE_HORIZONTAL == 0)
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lcd_write_data(0x00);
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else if (USE_HORIZONTAL == 1)
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lcd_write_data(0x60);
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else if (USE_HORIZONTAL == 2)
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lcd_write_data(0xa0);
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else
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lcd_write_data(0xc0);
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lcd_write_cmd(0x3A);
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lcd_write_data(0x05);
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lcd_write_cmd(0xB2);
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lcd_write_data(0x0C);
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lcd_write_data(0x0C);
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lcd_write_data(0x00);
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lcd_write_data(0x33);
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lcd_write_data(0x33);
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lcd_write_cmd(0xB7);
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lcd_write_data(0x35);
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lcd_write_cmd(0xBB);
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lcd_write_data(0x19);
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lcd_write_cmd(0xC0);
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lcd_write_data(0x2C);
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lcd_write_cmd(0xC2);
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lcd_write_data(0x01);
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lcd_write_cmd(0xC3);
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lcd_write_data(0x12);
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lcd_write_cmd(0xC4);
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lcd_write_data(0x20);
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lcd_write_cmd(0xC6);
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lcd_write_data(0x0F);
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lcd_write_cmd(0xD0);
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lcd_write_data(0xA4);
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lcd_write_data(0xA1);
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lcd_write_cmd(0xE0);
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lcd_write_data(0xD0);
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lcd_write_data(0x04);
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lcd_write_data(0x0D);
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lcd_write_data(0x11);
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lcd_write_data(0x13);
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lcd_write_data(0x2B);
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lcd_write_data(0x3F);
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lcd_write_data(0x54);
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lcd_write_data(0x4C);
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lcd_write_data(0x18);
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lcd_write_data(0x0D);
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lcd_write_data(0x0B);
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lcd_write_data(0x1F);
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lcd_write_data(0x23);
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lcd_write_cmd(0xE1);
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lcd_write_data(0xD0);
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lcd_write_data(0x04);
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lcd_write_data(0x0C);
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lcd_write_data(0x11);
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lcd_write_data(0x13);
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lcd_write_data(0x2C);
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lcd_write_data(0x3F);
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lcd_write_data(0x44);
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lcd_write_data(0x51);
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lcd_write_data(0x2F);
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lcd_write_data(0x1F);
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lcd_write_data(0x1F);
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lcd_write_data(0x20);
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lcd_write_data(0x23);
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lcd_write_cmd(0x21);
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lcd_write_cmd(0x11);
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// Delay (120);
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lcd_write_cmd(0x29);
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// 设置列地址
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lcd_write_cmd(0x2A); // 列地址设置
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lcd_write_data(0x00); // 起始列地址高位
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lcd_write_data(0x00); // 起始列地址低位
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lcd_write_data(0x00); // 结束列地址高位
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lcd_write_data(0xEF); // 结束列地址低位（240 列）
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// 设置行地址
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lcd_write_cmd(0x2B); // 行地址设置
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lcd_write_data(0x00); // 起始行地址高位
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lcd_write_data(0x00); // 起始行地址低位
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lcd_write_data(0x00); // 结束行地址高位
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lcd_write_data(0xC5); // 结束行地址低位（198 行）
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lcd_write_cmd(0x2C); // 内存写入
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}
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void lcd_fill(u16 xsta, u16 ysta, u16 xend, u16 yend, u16 color)
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{
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u16 i, j;
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lcd_open_window(xsta, ysta, xend - 1, yend - 1);
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for (i = ysta; i < yend; i++)
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{
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for (j = xsta; j < xend; j++)
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{
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lcd_write_data_ex(color);
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}
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}
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}
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void lcd_write_data_dma(u32 len, u8 *color)
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{
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// printf("lcd_write_data_dma %d \n", len);
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// int spi_dma_send(spi_dev spi, const void *buf, u32 len);
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// spi_send_byte(spi1_hdl, buf[i]);
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DC_H();
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// rt_pin_write((rt_base_t)st7789_device.config.user_data, PIN_HIGH);
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// return rt_lcd_write_data(st7789_device.mcu, &data, 1);
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CS_L();
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DC_H();
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// spi_send_byte(spi1_hdl,data);
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// lcd_write(&data, 1);
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spi_dma_send(LCD_SPI_CFG, color, len * 2);
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CS_H();
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}
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void lcd_fill_frame_lv(int x1, int y1, int x2, int y2, u16 *color)
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{
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u16 c;
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int i = 0;
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lcd_open_window(x1, y1, x2, y2);
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//lcd_write_cmd(CMD_WRITE);
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int cnt = (x2 + 1 - x1) * (y2 + 1 - y1);
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#if 1
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u8 color_buf[cnt * 2];
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int idx = 0;
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for (int i = 0; i < cnt; i++)
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{
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color_buf[idx] = (u8)(color[i] >> 8);
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color_buf[idx + 1] = (u8)(color[i]);
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idx += 2;
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}
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lcd_write_data_dma(cnt, color_buf);
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#else
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for (int i = 0; i < cnt; i++)
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{
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clr_wdt();
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c = color[i];
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lcd_write_data((u8)(c >> 8));
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lcd_write_data((u8)(c));
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}
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#endif
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}
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void lcd_st7789_init(void)
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{
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printf("lcd_st7789_init\n");
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hw_init();
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EXP_PWR_ON();
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clr_wdt();
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os_time_dly(1);
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spi_open(LCD_SPI_CFG);
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int delay_cnt = 0;
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RST_L();
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while (1)
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{
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clr_wdt();
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os_time_dly(1);
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delay_cnt++;
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if (delay_cnt > 10)
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{
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break;
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}
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}
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RST_H();
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clr_wdt();
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os_time_dly(1);
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st7789_init_cmd();
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//lcd_fill(0, 0, LCD_W, LCD_H, RED);
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BL_H();
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}
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