// Function: lcd_config
// This function configures the LCD
void lcd_config(void){
reset_display_controller();
// Enable LCD clocks
enable_lcd_power();
// Configure the DSS registers
configure_dss(framebuffer);
// Display data on LCD
display_lcd_image();
}
//------------------------------------------------------------------------------
//
// Function: lcd_config
//
// This function configures the LCD
//
void lcd_config(UINT32 framebuffer)
{
reset_display_controller();
// Enable LCD clocks
enable_lcd_power();
// Configure the DSS registers
configure_dss(framebuffer);
// Display data on LCD
display_lcd_image() ;
//if (IsDVIMode())
// DVI is selected, disable backlight
// disable_lcd_backlight();
//else
// Turn on backlight last
enable_lcd_backlight();
}
static int configure_lcd_evm()
{
reset_display_controller();
if (enable_lcd_backlight()) {
return -1;
}
if (enable_lcd_power()) {
return -1;
}
if (configure_vga_mode()) {
return -1;
}
printf("%d\t%d\n",disable_lcd_reset(),__LINE__);
printf("%d\t%d\n",enable_lcd_HVIF(),__LINE__);
printf("%d\t%d\n",enable_lcd_reset(),__LINE__);
printf("%d\t%d\n",enable_INI(),__LINE__);
printf("%d\t%d\n",configure_vert_scan_direction(CONV_SCAN_DIRECTION),__LINE__);
printf("%d\t%d\n",configure_horiz_scan_direction(CONV_SCAN_DIRECTION),__LINE__);
return 0;
}
void init_lcd(void)
{
/** 1. 设置LCD的相关GPIO引脚 */
// VD0 ~ VD23的引脚为GPI0 ~ GPI15，GPJ0 ~ GPJ7
// LDVEN、LVSYNC、LHSYNC、LVCLK的引脚为GPJ8 ~ GPJ11
GPICON = 0xAAAAAAAA;
GPJCON = 0xAAAAAA;
// GPF14用作背光使能信号，设为输出模式
// GPE0用作LCD的电源使能信号，设为输出模式
GPFCON &= ~(3 << 28);
GPFCON |= (1 << 28);
GPECON &= ~(0xF);
GPECON |= 1;
/** 2. 初始化LCD控制器 */
// PROGRAMMER'S MODEL (P-492)
// 设置MIFPCON的SEL_BYPASS[3]为Normal mode
MIFPCON &= ~(1 << 3);
// 设置SPCON的LCD_SEL[1:0]为RGB I/F Style
SPCON = (SPCON & (~3)) | 1;
// 设置VIDCON0控制器，设置图像输出格式等属性
VIDCON0 &= ~((3 << 26) | (3 << 17) | (0xFF << 6) | 0x1F);
VIDCON0 |= ((13 << 6) | (1 << 4));
// 设置VIDCON1控制器，设置HSYNC、VSYNC、VCLK、VDEN
VIDCON1 &= ~(0xF << 4);
VIDCON1 |= (0x7 << 4);
// 设置VIDTCON控制器的时间参数，行列数
VIDTCON0 = (1 << 16) | (1 << 8) | 9;
VIDTCON1 = (1 << 16) | (1 << 8) | 40;
VIDTCON2 = ((lcd_cfg.height - 1) << 11) | (lcd_cfg.width - 1);
// 设置WINCON0的输出像素格式
// use 16 BPP - RGB 565 - 0101
// 24 BPP - 1011
WINCON0 &= ~(0xF << 2);
WINCON0 |= (0xB << 2);
// 设置左上角和右下角坐标
VIDOSD0A = 0;
VIDOSD0B = ((lcd_cfg.width - 1) << 11) | (lcd_cfg.height - 1);
// 设置图像大小
VIDOSD0C = lcd_cfg.width * lcd_cfg.height;
// 设置显存起始地址
VIDW00ADD0B0 = FRAME_BUFFER;
// 设置显存结束地址
VIDW00ADD1B0 = lcd_cfg.width * 4 * lcd_cfg.height;
//
enable_lcd_power();
enable_lcd_backLight();
enable_lcd_display();
display_bg_color(COLOR_WHITE);
return;
}
