begin display work

master
Clyne Sullivan 7 years ago
parent 100cb2f84a
commit 92d50d4d83

@ -0,0 +1,13 @@
#ifndef DISPLAY_H_
#define DISPLAY_H_
#include <stdint.h>
#define LCD_WIDTH 480
#define LCD_HEIGHT 320
void dsp_write_data(uint8_t data);
void dsp_set_addr(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2);
void dsp_init(void);
#endif // DISPLAY_H_

@ -0,0 +1,144 @@
#include <display.h>
#include <clock.h>
#include <gpio.h>
#include <stdint.h>
#define LCD_RD GPIO_PORT(A, 0)
#define LCD_WR GPIO_PORT(A, 1)
#define LCD_RS GPIO_PORT(A, 4)
#define LCD_CS GPIO_PORT(B, 0)
#define LCD_RST GPIO_PORT(C, 1)
#define LCD_D0 GPIO_PORT(A, 9)
#define LCD_D1 GPIO_PORT(C, 7)
#define LCD_D2 GPIO_PORT(A, 10)
#define LCD_D3 GPIO_PORT(B, 3)
#define LCD_D4 GPIO_PORT(B, 5)
#define LCD_D5 GPIO_PORT(B, 4)
#define LCD_D6 GPIO_PORT(B, 10)
#define LCD_D7 GPIO_PORT(A, 8)
// bbbbbggg gggrrrrr
void dsp_write_data(uint8_t data)
{
gpio_dout(LCD_D0, data & 0x01);
gpio_dout(LCD_D1, data & 0x02);
gpio_dout(LCD_D2, data & 0x04);
gpio_dout(LCD_D3, data & 0x08);
gpio_dout(LCD_D4, data & 0x10);
gpio_dout(LCD_D5, data & 0x20);
gpio_dout(LCD_D6, data & 0x40);
gpio_dout(LCD_D7, data & 0x80);
gpio_dout(LCD_WR, 0);
gpio_dout(LCD_WR, 1);
}
void dsp_write_cmd(uint8_t data)
{
gpio_dout(LCD_RS, 0);
dsp_write_data(data);
gpio_dout(LCD_RS, 1);
}
void dsp_set_addr(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
{
dsp_write_cmd(0x2A);
dsp_write_data(x1 >> 8);
dsp_write_data(x1 & 0xFF);
dsp_write_data(x2 >> 8);
dsp_write_data(x2 & 0xFF);
dsp_write_cmd(0x2B);
dsp_write_data(y1 >> 8);
dsp_write_data(y1 & 0xFF);
dsp_write_data(y2 >> 8);
dsp_write_data(y2 & 0xFF);
dsp_write_cmd(0x2C); // begin writing
}
void dsp_init(void)
{
gpio_mode(LCD_CS, OUTPUT);
gpio_mode(LCD_RS, OUTPUT);
gpio_mode(LCD_RD, OUTPUT);
gpio_mode(LCD_WR, OUTPUT);
gpio_mode(LCD_RST, OUTPUT);
gpio_mode(LCD_D0, OUTPUT);
gpio_mode(LCD_D1, OUTPUT);
gpio_mode(LCD_D2, OUTPUT);
gpio_mode(LCD_D3, OUTPUT);
gpio_mode(LCD_D4, OUTPUT);
gpio_mode(LCD_D5, OUTPUT);
gpio_mode(LCD_D6, OUTPUT);
gpio_mode(LCD_D7, OUTPUT);
gpio_dout(LCD_CS, 1);
gpio_dout(LCD_RS, 1);
gpio_dout(LCD_RD, 1);
gpio_dout(LCD_WR, 1);
gpio_dout(LCD_RST, 1);
gpio_dout(LCD_D0, 0);
gpio_dout(LCD_D1, 0);
gpio_dout(LCD_D2, 0);
gpio_dout(LCD_D3, 0);
gpio_dout(LCD_D4, 0);
gpio_dout(LCD_D5, 0);
gpio_dout(LCD_D6, 0);
gpio_dout(LCD_D7, 0);
delay(50);
gpio_dout(LCD_RST, 0);
delay(15);
gpio_dout(LCD_RST, 1);
delay(15);
dsp_write_cmd(0x01); // soft reset
delay(50);
dsp_write_cmd(0xD0); // power setting
dsp_write_data(0x07);
dsp_write_data(0x42);
dsp_write_data(0x18);
dsp_write_cmd(0xD1); // vcom control
dsp_write_data(0x00);
dsp_write_data(0x07);
dsp_write_data(0x10);
dsp_write_cmd(0xD2); // power for normal mode
dsp_write_data(0x01);
dsp_write_data(0x02);
dsp_write_cmd(0xD3);
dsp_write_data(0x01);
dsp_write_data(0x02);
dsp_write_cmd(0xD4);
dsp_write_data(0x01);
dsp_write_data(0x02);
dsp_write_cmd(0xC0); // panel driving setting
dsp_write_data(0x10);
dsp_write_data(0x3B);
dsp_write_data(0x00);
dsp_write_data(0x02);
dsp_write_data(0x11);
dsp_write_cmd(0xC5); // frame rate/inversion ctl
dsp_write_data(0x03);
dsp_write_cmd(0x36); // rot. and stuff
dsp_write_data(0x41);
dsp_write_cmd(0x3A); // set pixel format
dsp_write_data(0x55);
dsp_write_cmd(0x11);
delay(150);
dsp_write_cmd(0x29); // set display on
delay(500);
dsp_write_cmd(0x33); // set scroll area
dsp_write_data(0x00);
dsp_write_data(0x00);
dsp_write_data(LCD_HEIGHT >> 8);
dsp_write_data((LCD_HEIGHT & 0xFF) - 1);
dsp_write_data(0x00);
dsp_write_data(0x00);
dsp_write_cmd(0x37);
dsp_write_data(0x00);
dsp_write_data(0x00);
dsp_set_addr(0, 0, LCD_WIDTH, LCD_HEIGHT);
}

@ -4,6 +4,7 @@
#include <task.h> #include <task.h>
#include <gpio.h> #include <gpio.h>
#include <lcd.h> #include <lcd.h>
#include <display.h>
#include <initrd.h> #include <initrd.h>
#include <serial.h> #include <serial.h>
#include <parser.h> #include <parser.h>
@ -100,9 +101,17 @@ void kmain(void)
{ {
asm("cpsie i"); asm("cpsie i");
task_start(lcd_handler, 128); dsp_init();
delay(200); dsp_set_addr(0, 0, LCD_WIDTH, LCD_HEIGHT);
task_start(task_interpreter, 4096); int w = LCD_WIDTH * LCD_HEIGHT;
do {
dsp_write_data(0);//c >> 8);
dsp_write_data(0);//c & 0xFF);
} while (w--);
//task_start(lcd_handler, 128);
//delay(200);
//task_start(task_interpreter, 4096);
//char *s = initrd_getfile("test.txt"); //char *s = initrd_getfile("test.txt");

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