コード例 #1
0
ファイル: s3c-fb.c プロジェクト: 0xFelix/u-boot-edminiv2
/*
 * Example:
 * setenv videomode video=ctfb:x:800,y:480,depth:16,mode:0,\
 *            pclk:30066,le:41,ri:89,up:45,lo:12,
 *            hs:1,vs:1,sync:100663296,vmode:0
 */
static void s3c_lcd_init(GraphicDevice *panel,
			struct ctfb_res_modes *mode, int bpp)
{
	uint32_t clk_divider;
	struct s3c24x0_lcd *regs = s3c24x0_get_base_lcd();

	/* Stop the controller. */
	clrbits_le32(&regs->lcdcon1, 1);

	/* Calculate clock divider. */
	clk_divider = (get_HCLK() / PS2KHZ(mode->pixclock)) / 1000;
	clk_divider = DIV_ROUND_UP(clk_divider, 2);
	if (clk_divider)
		clk_divider -= 1;

	/* Program LCD configuration. */
	switch (bpp) {
	case 16:
		writel(S3CFB_LCDCON1_BPPMODE_TFT_16BPP |
		       S3CFB_LCDCON1_PNRMODE_TFT |
		       S3CFB_LCDCON1_CLKVAL(clk_divider),
		       &regs->lcdcon1);
		writel(S3CFB_LCDCON5_HWSWP | S3CFB_LCDCON5_FRM565,
		       &regs->lcdcon5);
		break;
	case 24:
		writel(S3CFB_LCDCON1_BPPMODE_TFT_24BPP |
		       S3CFB_LCDCON1_PNRMODE_TFT |
		       S3CFB_LCDCON1_CLKVAL(clk_divider),
		       &regs->lcdcon1);
		writel(S3CFB_LCDCON5_BPP24BL, &regs->lcdcon5);
		break;
	}

	writel(S3CFB_LCDCON2_LINEVAL(mode->yres - 1) |
	       S3CFB_LCDCON2_VBPD(mode->upper_margin - 1) |
	       S3CFB_LCDCON2_VFPD(mode->lower_margin - 1) |
	       S3CFB_LCDCON2_VSPW(mode->vsync_len - 1),
	       &regs->lcdcon2);

	writel(S3CFB_LCDCON3_HBPD(mode->right_margin - 1) |
	       S3CFB_LCDCON3_HFPD(mode->left_margin - 1) |
	       S3CFB_LCDCON3_HOZVAL(mode->xres - 1),
	       &regs->lcdcon3);

	writel(S3CFB_LCDCON4_HSPW(mode->hsync_len - 1),
	       &regs->lcdcon4);

	/* Write FB address. */
	writel(panel->frameAdrs >> 1, &regs->lcdsaddr1);
	writel((panel->frameAdrs +
	       (mode->xres * mode->yres * panel->gdfBytesPP)) >> 1,
	       &regs->lcdsaddr2);
	writel(mode->xres * bpp / 16, &regs->lcdsaddr3);

	/* Start the controller. */
	setbits_le32(&regs->lcdcon1, 1);
}
コード例 #2
0
ファイル: XC2440.c プロジェクト: embedboobooke/myu-boot
void board_video_init(GraphicDevice *pGD) 
{ 
	struct s3c24x0_lcd * const lcd	 = s3c24x0_get_base_lcd(); 
	struct s3c2410_nand * const nand = s3c2410_get_base_nand();
	 
	lcd->LCDCON1 = 0x00000378; /* CLKVAL=4, BPPMODE=16bpp, TFT, ENVID=0 */ 
	lcd->LCDCON2 = (VBPD_320240<<24)|(LINEVAL_TFT_320240<<14)|(VFPD_320240<<6)|(VSPW_320240); 
	lcd->LCDCON3 = (HBPD_320240<<19)|(HOZVAL_TFT_320240<<8)|(HFPD_320240); 

	lcd->LCDCON4 = (MVAL<<8)|(HSPW_320240);
	
	lcd->LCDCON5 = 0x00000f09; 
	lcd->LPCSEL  = 0x00000000; 
} 
コード例 #3
0
ファイル: s3c2410_fb.c プロジェクト: embedboobooke/myu-boot
/*******************************************************************************
 *
 * Init video chip with common Linux graphic modes (lilo)
 */
void *video_hw_init (void)
{
    struct s3c24x0_lcd * const lcd = s3c24x0_get_base_lcd();
    GraphicDevice *pGD = (GraphicDevice *)&smi;
    int videomode;
    unsigned long t1, hsynch, vsynch;
    char *penv;
    int tmp, i, bits_per_pixel;
    struct ctfb_res_modes *res_mode;
    struct ctfb_res_modes var_mode;
//    unsigned char videoout;
 
    /* Search for video chip */
//    printf("Video: ");   //by mickeyos

    tmp = 0;
 
         videomode = CFG_SYS_DEFAULT_VIDEO_MODE;
         /* get video mode via environment */
         if ((penv = getenv ("videomode")) != NULL) {
                 /* deceide if it is a string */
                 if (penv[0] <= '9') {
                         videomode = (int) simple_strtoul (penv, NULL, 16);
                         tmp = 1;
                 }
         } else {
                 tmp = 1;
         }
         if (tmp) {
                 /* parameter are vesa modes */
                 /* search params */
                 for (i = 0; i < VESA_MODES_COUNT; i++) {
                         if (vesa_modes[i].vesanr == videomode)
                                 break;
                 }
                 if (i == VESA_MODES_COUNT) {
                         printf ("no VESA Mode found, switching to mode 0x%x ", CFG_SYS_DEFAULT_VIDEO_MODE);
                         i = 0;
                }
                 res_mode =
                         (struct ctfb_res_modes *) &res_mode_init[vesa_modes[i].
                                                                  resindex];
                 bits_per_pixel = vesa_modes[i].bits_per_pixel;
         } else {
 
                res_mode = (struct ctfb_res_modes *) &var_mode;
                 bits_per_pixel = video_get_params (res_mode, penv);
         }
 
         /* calculate hsynch and vsynch freq (info only) */
         t1 = (res_mode->left_margin + res_mode->xres +
               res_mode->right_margin + res_mode->hsync_len) / 8;
         t1 *= 8;
         t1 *= res_mode->pixclock;
         t1 /= 1000;
         hsynch = 1000000000L / t1;
         t1 *=
                 (res_mode->upper_margin + res_mode->yres +
                  res_mode->lower_margin + res_mode->vsync_len);
         t1 /= 1000;
         vsynch = 1000000000L / t1;
 
         /* fill in Graphic device struct */
         sprintf (pGD->modeIdent, "%dx%dx%d %ldkHz %ldHz", res_mode->xres,
                  res_mode->yres, bits_per_pixel, (hsynch / 1000),
                  (vsynch / 1000));
    //     printf ("%s\n", pGD->modeIdent);  //by mickeyos
         pGD->winSizeX = res_mode->xres;
         pGD->winSizeY = res_mode->yres;
         pGD->plnSizeX = res_mode->xres;
         pGD->plnSizeY = res_mode->yres;
             
         switch (bits_per_pixel) {
         case 8:
                 pGD->gdfBytesPP = 1;
                 pGD->gdfIndex = GDF__8BIT_INDEX;
                 break;
         case 15:
                 pGD->gdfBytesPP = 2;
                 pGD->gdfIndex = GDF_15BIT_555RGB;
                 break;
         case 16:
                 pGD->gdfBytesPP = 2;
                 pGD->gdfIndex = GDF_16BIT_565RGB;
                 break;
         case 24:
                 pGD->gdfBytesPP = 3;
                 pGD->gdfIndex = GDF_24BIT_888RGB;
                 break;
         }
 
         /* statically configure settings */
        pGD->winSizeX = pGD->plnSizeX = 320;
         pGD->winSizeY = pGD->plnSizeY = 240;
         pGD->gdfBytesPP = 2;
         pGD->gdfIndex = GDF_16BIT_565RGB;
 
         pGD->frameAdrs = LCD_VIDEO_ADDR;
         pGD->memSize = VIDEO_MEM_SIZE;
 
         board_video_init(pGD);

	writel((pGD->frameAdrs >> 1), &lcd->LCDSADDR1); 
 
         /* This marks the end of the frame buffer. */
	writel((((readl(&lcd->LCDSADDR1))&0x1fffff) + (pGD->winSizeX+0) * pGD->winSizeY), &lcd->LCDSADDR2); 
	writel((pGD->winSizeX & 0x7ff), &lcd->LCDSADDR3); 
 
         /* Clear video memory */
         memset((void *)pGD->frameAdrs, 0, pGD->memSize);
 
         /* Enable  Display  */
	writel((readl(&lcd->LCDCON1) | 0x01), & lcd->LCDCON1); /* ENVID = 1 */
 
         return ((void*)&smi);
 }