377 lines
7.7 KiB
C
377 lines
7.7 KiB
C
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/*
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* ST7701S LCD Display.
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*
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* LCD Type: AMT TFT
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* Display Format: 320(RGB)*960
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* Input Data: RGB 16bits(RGB565)
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*/
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#include "FreeRTOS.h"
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#include "board.h"
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#include "chip.h"
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//3 lines mode spi.
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#define ST7701S_GPIO_SPI_CS 23
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#define ST7701S_GPIO_SPI_SCL 24
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#define ST7701S_GPIO_SPI_SDA 25
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#define ST7701S_GPIO_SPI_RST 26
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#define ST7701S_DELAY udelay(5)
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static void SPI_SendData(unsigned char value)
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{
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int i;
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for(i=0; i<8; i++)
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{
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if(value & 0x80)
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gpio_direction_output(ST7701S_GPIO_SPI_SDA, 1); //SDA=1
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else
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gpio_direction_output(ST7701S_GPIO_SPI_SDA, 0); //SDA=0
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value<<= 1;
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gpio_direction_output(ST7701S_GPIO_SPI_SCL, 0); //SCL=0
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ST7701S_DELAY;
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gpio_direction_output(ST7701S_GPIO_SPI_SCL, 1); //SCL=1
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ST7701S_DELAY;
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}
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}
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static void SPI_WriteComm(unsigned char value)
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{
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gpio_direction_output(ST7701S_GPIO_SPI_CS, 0); //CS=0
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//D/CX = 0
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gpio_direction_output(ST7701S_GPIO_SPI_SDA, 0); //SDA=0
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gpio_direction_output(ST7701S_GPIO_SPI_SCL, 0); //SCL=0
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ST7701S_DELAY;
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gpio_direction_output(ST7701S_GPIO_SPI_SCL, 1); //SCL=1
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ST7701S_DELAY;
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//Command data.
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SPI_SendData(value);
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gpio_direction_output(ST7701S_GPIO_SPI_CS, 1); //CS=1
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ST7701S_DELAY;
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}
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static void SPI_WriteData(unsigned char value)
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{
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gpio_direction_output(ST7701S_GPIO_SPI_CS, 0); //CS=0
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//D/CX = 1
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gpio_direction_output(ST7701S_GPIO_SPI_SDA, 1); //SDA=1
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gpio_direction_output(ST7701S_GPIO_SPI_SCL, 0); //SCL=0
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ST7701S_DELAY;
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gpio_direction_output(ST7701S_GPIO_SPI_SCL, 1); //SCL=1
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ST7701S_DELAY;
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//Parameter data.
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SPI_SendData(value);
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gpio_direction_output(ST7701S_GPIO_SPI_CS, 1); //CS=1
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ST7701S_DELAY;
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}
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static void st7701s_reg_init(void)
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{
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SPI_WriteComm (0xFF);
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SPI_WriteData (0x77);
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SPI_WriteData (0x01);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteData (0x13);
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SPI_WriteComm (0xEF);
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SPI_WriteData (0x08);
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SPI_WriteComm (0xFF);
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SPI_WriteData (0x77);
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SPI_WriteData (0x01);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteData (0x10);
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SPI_WriteComm (0xC0);
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SPI_WriteData (0x77);
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SPI_WriteData (0x00);
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SPI_WriteComm (0xC1); //proch control.
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SPI_WriteData (0x09); //vbp
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SPI_WriteData (0x08); //vfp
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SPI_WriteComm (0xC2); //inv
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#if 0
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SPI_WriteData (0x01);
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#else
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SPI_WriteData (0x07);
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#endif
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SPI_WriteData (0x02);
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//default:0x00, DE mode.
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SPI_WriteComm (0xC3); //RGB control.
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SPI_WriteData (0x02); //82 HVmode 02 DEmode
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#if 0 //default:0x00
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SPI_WriteComm (0xC7); //add. Source direction control.
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SPI_WriteData (0x04); //0x00:Source form 0 to 479, 0x04:from 479 to 0.
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#endif
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SPI_WriteComm (0xCC);
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SPI_WriteData (0x10);
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SPI_WriteComm (0xB0);
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SPI_WriteData (0x40);
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SPI_WriteData (0x14);
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SPI_WriteData (0x59);
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SPI_WriteData (0x10);
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SPI_WriteData (0x12);
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SPI_WriteData (0x08);
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SPI_WriteData (0x03);
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SPI_WriteData (0x09);
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SPI_WriteData (0x05);
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SPI_WriteData (0x1E);
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SPI_WriteData (0x05);
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SPI_WriteData (0x14);
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SPI_WriteData (0x10);
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SPI_WriteData (0x68);
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SPI_WriteData (0x33);
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SPI_WriteData (0x15);
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SPI_WriteComm (0xB1);
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SPI_WriteData (0x40);
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SPI_WriteData (0x08);
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SPI_WriteData (0x53);
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SPI_WriteData (0x09);
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SPI_WriteData (0x11);
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SPI_WriteData (0x09);
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SPI_WriteData (0x02);
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SPI_WriteData (0x07);
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SPI_WriteData (0x09);
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SPI_WriteData (0x1A);
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SPI_WriteData (0x04);
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SPI_WriteData (0x12);
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SPI_WriteData (0x12);
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SPI_WriteData (0x64);
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SPI_WriteData (0x29);
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SPI_WriteData (0x29);
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SPI_WriteComm (0xFF);
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SPI_WriteData (0x77);
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SPI_WriteData (0x01);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteData (0x11);
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SPI_WriteComm (0xB0);
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SPI_WriteData (0x6D); //6D
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SPI_WriteComm (0xB1); //vcom
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SPI_WriteData (0x1D);
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SPI_WriteComm (0xB2);
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SPI_WriteData (0x87);
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SPI_WriteComm (0xB3);
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SPI_WriteData (0x80);
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SPI_WriteComm (0xB5);
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SPI_WriteData (0x49);
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SPI_WriteComm (0xB7);
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SPI_WriteData (0x85);
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SPI_WriteComm (0xB8);
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SPI_WriteData (0x20);
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SPI_WriteComm (0xC1);
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SPI_WriteData (0x78);
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SPI_WriteComm (0xC2);
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SPI_WriteData (0x78);
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SPI_WriteComm (0xD0);
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SPI_WriteData (0x88);
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SPI_WriteComm (0xE0);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteData (0x02);
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SPI_WriteComm (0xE1);
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SPI_WriteData (0x02);
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SPI_WriteData (0x8C);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteData (0x03);
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SPI_WriteData (0x8C);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteData (0x33);
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SPI_WriteData (0x33);
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SPI_WriteComm (0xE2);
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SPI_WriteData (0x33);
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SPI_WriteData (0x33);
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SPI_WriteData (0x33);
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SPI_WriteData (0x33);
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SPI_WriteData (0xC9);
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SPI_WriteData (0x3C);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteData (0xCA);
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SPI_WriteData (0x3C);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteComm (0xE3);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteData (0x33);
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SPI_WriteData (0x33);
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SPI_WriteComm (0xE4);
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SPI_WriteData (0x44);
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SPI_WriteData (0x44);
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SPI_WriteComm (0xE5);
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SPI_WriteData (0x05);
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SPI_WriteData (0xCD);
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SPI_WriteData (0x82);
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SPI_WriteData (0x82);
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SPI_WriteData (0x01);
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SPI_WriteData (0xC9);
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SPI_WriteData (0x82);
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SPI_WriteData (0x82);
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SPI_WriteData (0x07);
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SPI_WriteData (0xCF);
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SPI_WriteData (0x82);
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SPI_WriteData (0x82);
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SPI_WriteData (0x03);
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SPI_WriteData (0xCB);
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SPI_WriteData (0x82);
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SPI_WriteData (0x82);
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SPI_WriteComm (0xE6);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteData (0x33);
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SPI_WriteData (0x33);
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SPI_WriteComm (0xE7);
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SPI_WriteData (0x44);
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SPI_WriteData (0x44);
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SPI_WriteComm (0xE8);
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SPI_WriteData (0x06);
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SPI_WriteData (0xCE);
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SPI_WriteData (0x82);
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SPI_WriteData (0x82);
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SPI_WriteData (0x02);
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SPI_WriteData (0xCA);
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SPI_WriteData (0x82);
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SPI_WriteData (0x82);
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SPI_WriteData (0x08);
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SPI_WriteData (0xD0);
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SPI_WriteData (0x82);
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SPI_WriteData (0x82);
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SPI_WriteData (0x04);
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SPI_WriteData (0xCC);
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SPI_WriteData (0x82);
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SPI_WriteData (0x82);
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SPI_WriteComm (0xEB);
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SPI_WriteData (0x08);
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SPI_WriteData (0x01);
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SPI_WriteData (0xE4);
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SPI_WriteData (0xE4);
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SPI_WriteData (0x88);
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SPI_WriteData (0x00);
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SPI_WriteData (0x40);
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SPI_WriteComm (0xEC);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteComm (0xED);
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SPI_WriteData (0xFF);
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SPI_WriteData (0xF0);
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SPI_WriteData (0x07);
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SPI_WriteData (0x65);
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SPI_WriteData (0x4F);
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SPI_WriteData (0xFC);
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SPI_WriteData (0xC2);
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SPI_WriteData (0x2F);
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SPI_WriteData (0xF2);
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SPI_WriteData (0x2C);
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SPI_WriteData (0xCF);
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SPI_WriteData (0xF4);
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SPI_WriteData (0x56);
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SPI_WriteData (0x70);
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SPI_WriteData (0x0F);
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SPI_WriteData (0xFF);
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SPI_WriteComm (0xEF);
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SPI_WriteData (0x10);
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SPI_WriteData (0x0D);
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SPI_WriteData (0x04);
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SPI_WriteData (0x08);
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SPI_WriteData (0x3F);
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SPI_WriteData (0x1F);
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SPI_WriteComm (0xFF);
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SPI_WriteData (0x77);
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SPI_WriteData (0x01);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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SPI_WriteData (0x00);
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mdelay(114); //Sleep out cmd cannot be send after hw-reset for 120ms.
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SPI_WriteComm (0x11); //sleep out.
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SPI_WriteComm (0x35);
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SPI_WriteData (0x00);
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#if 0
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SPI_WriteComm (0x36); //
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SPI_WriteData (0x10); //bit4(0:normal scan, 1:inverse scan); bit3(0:RGB, 1:BGR), default:0x00
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#endif
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SPI_WriteComm (0x3A); //RGB Interface pixel format.
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SPI_WriteData (0x77); //bit[4-6](101:16-bit/pixel; 110:18-bit/pixel;111:24-bit/pixel), default:0x70
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//SPI_WriteComm (0x11);
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//Delay(120);
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SPI_WriteComm (0x29); //display on.
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}
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static void st7701s_hw_reset(void)
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{
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gpio_direction_output(ST7701S_GPIO_SPI_RST, 1);
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mdelay(10);
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gpio_direction_output(ST7701S_GPIO_SPI_RST, 0);
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mdelay(1); //>=9us
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gpio_direction_output(ST7701S_GPIO_SPI_RST, 1);
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mdelay(6); //>=5ms
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}
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int st7701s_init(void)
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||
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{
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gpio_direction_output(ST7701S_GPIO_SPI_CS, 1); //CS=1
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gpio_direction_output(ST7701S_GPIO_SPI_SCL, 1); //SCL=1
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gpio_direction_output(ST7701S_GPIO_SPI_SDA, 0); //SDA=0
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st7701s_hw_reset();
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st7701s_reg_init();
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||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|