S3C6410 LCD显示测试

只看该作者 · 2010-11-3 22:06

S3C6410 LCD控制器初始化程序:

static int lcd_init(void)
{
#if 1
// s3c2450 AT070TN 7.0" (800x480)
#define VBPD    (23)
#define VFPD    (23)
#define VSPW    (23)
#define HBPD    (46)
#define HFPD    (46)
#define HSPW    (46)
/*
#define VBPD    (11)
#define VFPD    (12)
#define VSPW    (12)
#define HBPD    (23)
#define HFPD    (23)
#define HSPW    (23)
*/
#define FRAME_RATE 30
#define LCD_XSIZE_TFT    (LCD_XSIZE)
#define LCD_YSIZE_TFT    (LCD_YSIZE)
#define LCD_SCR_XSIZE    (LCD_XSIZE)          // virtual screen
#define LCD_SCR_YSIZE    (LCD_YSIZE)
#define LCD_SCR_XSIZE_TFT (LCD_XSIZE)          // virtual screen
#define LCD_SCR_YSIZE_TFT (LCD_YSIZE)

//* VIDCON0
#define VIDOUT  (0)
#define L1_DATA16 (4)
#define L0_DATA16 (4)
#define PNRMODE  (0)
#define CLKVALUP (1)
#define CLKVAL_F (6)
#define CLKDIR  (1)
#define CLKSEL_F (0)

//* VIDCON1
#define VCLK_INVERTED (0)
#define HSYNC_INVERTED (0)
#define VSYNC_INVERTED (0)
#define VDEN_INVERTED (0)

//* WINCON1to4
#if(LCD_BPP==16)
#define BITSWP  (0) //shift on basis of half-word swap
#define BYTSWP  (0) //shift on basis of half-word swap
#define HAWSWP  (1) //shift on basis of half-word swap
#endif
#if(LCD_BPP==24)
#define BITSWP  (0) //shift on basis of half-word swap
#define BYTSWP  (0) //shift on basis of half-word swap
#define HAWSWP  (0) //shift on basis of half-word swap
#endif
#define WINCONx_4WORD_BURST (2)
#define WINCONx_8WORD_BURST (1)
#define WINCONx_16WORD_BURST  (0)
#define WINCONx_PLANE_BLENDING  (0)
#define WINCONx_PIXEL_BLENDING  (1)
#define WINCONx_1BPP_PALLET (0)
#define WINCONx_2BPP_PALLET (1)
#define WINCONx_4BPP_PALLET (2)
#define WINCONx_8BPP_PALLET (3)
#define WINCONx_8BPP_NO_PALLET  (4)
#define WINCONx_16BPP_565 (5)
#define WINCONx_16BPP_A555 (6)
#define WINCONx_16BPP_1555 (7)
#define WINCONx_18BPP_666 (8)
#define WINCONx_18BPP_A665 (9)
#define WINCONx_19BPP_A666 (10)
#define WINCONx_24BPP_888 (11)
#define WINCONx_24BPP_A887 (12)
#define WINCONx_25BPP_A888 (13)
#define WINCONx_ALPHA_MODE_0  (0)
#define WINCONx_ALPHA_MODE_1  (1)

#define LCD_HOZVAL_TFT       (LCD_XSIZE_TFT-1)
#define LCD_LINEVAL_TFT       (LCD_YSIZE_TFT-1)

int x,y,m,n;
U8 pagewidth_in_byte=0,offsize_in_byte=0;
U8 clkval=0;
U16 hsync_cnt,vclk_cnt;
U16 lcd_horizon_value,lcd_line_value;
U8 lcd_vbpd,lcd_vfpd,lcd_vspw,lcd_hbpd,lcd_hfpd,lcd_hspw;
U8 lcd_frame_rate;
int i;

////////////////////////
/*
//// GPF14 (backlight)
rGPFCON  &=~(3<<28);
rGPFCON  |=(1<<28);
rGPFPUD  &=~(3<<28);
rGPFPUD  |=(2<<28);
rGPFDAT  |=(1<<14);
*/

//// LCD Port
rGPICON = 0xAAAAAAAA;
rGPIPUD = 0xAAAAAAAA;

rGPJCON = 0xAAAAAAAA;
rGPJPUD = 0xAAAAAAAA;

lcd_horizon_value = LCD_XSIZE;
lcd_line_value = LCD_YSIZE;
lcd_vbpd = VBPD;
lcd_vfpd = VFPD;
lcd_vspw = VSPW;
lcd_hbpd = HBPD;
lcd_hfpd = HFPD;
lcd_hspw = HSPW;
lcd_frame_rate = FRAME_RATE;

pagewidth_in_byte = lcd_horizon_value/8*16;
offsize_in_byte = 0;

hsync_cnt  = (lcd_vbpd+lcd_vfpd+lcd_vspw+lcd_line_value);
vclk_cnt = (lcd_hbpd+lcd_hfpd+lcd_hspw+lcd_horizon_value);
clkval = (U8)(((float)CPU_GetHclkHZ()/(float)(hsync_cnt*vclk_cnt*lcd_frame_rate*2))+0.5)-1;

rVIDCON0 &= ~(3<<0); // ENVID Off using Per Frame method
rWINCON0 &= ~(1<<0);
rVIDCON0 = (VIDOUT<<26)|(L1_DATA16<<23)|(L0_DATA16<<20)|(PNRMODE<<17)|(CLKVALUP<<16)|(clkval<<6)|(CLKDIR<<4)|(CLKSEL_F<<2)|(0<<0);


rVIDCON1 = (VCLK_INVERTED<<7)|(HSYNC_INVERTED<<6)|(VSYNC_INVERTED<<5)|(VDEN_INVERTED<<4);
rVIDTCON0 = ((lcd_vbpd-1)<<16)|((lcd_vfpd-1)<<8)|(lcd_vspw-1);
rVIDTCON1 = ((lcd_hbpd-1)<<16)|((lcd_hfpd-1)<<8)|(lcd_hspw-1);
rVIDTCON2 = ((lcd_line_value-1)<<11)|(lcd_horizon_value-1);
#if(LCD_BPP==16)
rWINCON0 = (BITSWP<<18)|(BYTSWP<<17)|(HAWSWP<<16)|(WINCONx_8WORD_BURST<<9)|(WINCONx_16BPP_565<<2); // 16word burst, 16bpp,
#endif

#if(LCD_BPP==24)
rWINCON0 = (BITSWP<<18)|(BYTSWP<<17)|(HAWSWP<<16)|(WINCONx_8WORD_BURST<<9)|(WINCONx_24BPP_888<<2); // 16word burst, 24bpp,
#endif

rVIDOSD0A = (0<<11)|(0);
rVIDOSD0B = (lcd_horizon_value-1)<<11|(lcd_line_value-1);

rVIDW00ADD0B0 = (U32)LCD_Buffer;
rVIDW00ADD1B0 = (U32)LCD_Buffer + LCD_BUF_SIZE;

rVIDW00ADD2 = (offsize_in_byte<<13)|(LCD_XSIZE*sizeof(LCD_COLOR));

//rDITHMODE = (1<<5)|(1<<3)|(1<<1)|(1<<0);
//rDITHMODE = 0;

rVIDCON0 |= (3<<0);
rWINCON0 |= (1<<0);

//? rINTSUBMSK |= (0xf << IRQ_SUB_LCD1); // MASK all LCD Sub Interrupt

DebugPrintf("LCDInit End(%dx%d,%dbpp)\n",LCD_XSIZE,LCD_YSIZE,LCD_BPP);
#endif
}