cfb_console.c

F:worksip2440a board可启动u-boot-like.tar.gz F:worksip2440a board可启动u-boot-like.tar.gz

				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_16BIT_565RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					cte = bmp->color_table[*bmap++];
					FILL_16BIT_565RGB (cte.red, cte.green, cte.blue);
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_32BIT_X888RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					cte = bmp->color_table[*bmap++];
					FILL_32BIT_X888RGB (cte.red, cte.green, cte.blue);
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_24BIT_888RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					cte = bmp->color_table[*bmap++];
					FILL_24BIT_888RGB (cte.red, cte.green, cte.blue);
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		}
		break;
	case 24:
		padded_line -= 3 * width;
		ycount = height;
		switch (VIDEO_DATA_FORMAT) {
		case GDF__8BIT_332RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					FILL_8BIT_332RGB (bmap[2], bmap[1], bmap[0]);
					bmap += 3;
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_15BIT_555RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					FILL_15BIT_555RGB (bmap[2], bmap[1], bmap[0]);
					bmap += 3;
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_16BIT_565RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					FILL_16BIT_565RGB (bmap[2], bmap[1], bmap[0]);
					bmap += 3;
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_32BIT_X888RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					FILL_32BIT_X888RGB (bmap[2], bmap[1], bmap[0]);
					bmap += 3;
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_24BIT_888RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					FILL_24BIT_888RGB (bmap[2], bmap[1], bmap[0]);
					bmap += 3;
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		default:
			printf ("Error: 24 bits/pixel bitmap incompatible with current video mode\n");
			break;
		}
		break;
	default:
		printf ("Error: %d bit/pixel bitmaps not supported by U-Boot\n",
			le16_to_cpu (bmp->header.bit_count));
		break;
	}
	return (0);
}
#endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) || CONFIG_SPLASH_SCREEN */

/*****************************************************************************/

#ifdef CONFIG_VIDEO_LOGO
void logo_plot (void *screen, int width, int x, int y)
{

	int xcount, i;
	int skip   = (width - VIDEO_LOGO_WIDTH) * VIDEO_PIXEL_SIZE;
	int ycount = VIDEO_LOGO_HEIGHT;
	unsigned char r, g, b, *logo_red, *logo_blue, *logo_green;
	unsigned char *source;
	unsigned char *dest = (unsigned char *)screen + ((y * width * VIDEO_PIXEL_SIZE) + x);

#ifdef CONFIG_VIDEO_BMP_LOGO
	source = bmp_logo_bitmap;

	/* Allocate temporary space for computing colormap			 */
	logo_red = malloc (BMP_LOGO_COLORS);
	logo_green = malloc (BMP_LOGO_COLORS);
	logo_blue = malloc (BMP_LOGO_COLORS);
	/* Compute color map							 */
	for (i = 0; i < VIDEO_LOGO_COLORS; i++) {
		logo_red[i] = (bmp_logo_palette[i] & 0x0f00) >> 4;
		logo_green[i] = (bmp_logo_palette[i] & 0x00f0);
		logo_blue[i] = (bmp_logo_palette[i] & 0x000f) << 4;
	}
#else
	source = linux_logo;
	logo_red = linux_logo_red;
	logo_green = linux_logo_green;
	logo_blue = linux_logo_blue;
#endif

	if (VIDEO_DATA_FORMAT == GDF__8BIT_INDEX) {
		for (i = 0; i < VIDEO_LOGO_COLORS; i++) {
			video_set_lut (i + VIDEO_LOGO_LUT_OFFSET,
				       logo_red[i], logo_green[i], logo_blue[i]);
		}
	}

	while (ycount--) {
		xcount = VIDEO_LOGO_WIDTH;
		while (xcount--) {
			r = logo_red[*source - VIDEO_LOGO_LUT_OFFSET];
			g = logo_green[*source - VIDEO_LOGO_LUT_OFFSET];
			b = logo_blue[*source - VIDEO_LOGO_LUT_OFFSET];

			switch (VIDEO_DATA_FORMAT) {
			case GDF__8BIT_INDEX:
				*dest = *source;
				break;
			case GDF__8BIT_332RGB:
				*dest = ((r >> 5) << 5) | ((g >> 5) << 2) | (b >> 6);
				break;
			case GDF_15BIT_555RGB:
				*(unsigned short *) dest =
					SWAP16 ((unsigned short) (((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3)));
				break;
			case GDF_16BIT_565RGB:
				*(unsigned short *) dest =
					SWAP16 ((unsigned short) (((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3)));
				break;
			case GDF_32BIT_X888RGB:
				*(unsigned long *) dest =
					SWAP32 ((unsigned long) ((r << 16) | (g << 8) | b));
				break;
			case GDF_24BIT_888RGB:
#ifdef VIDEO_FB_LITTLE_ENDIAN
				dest[0] = b;
				dest[1] = g;
				dest[2] = r;
#else
				dest[0] = r;
				dest[1] = g;
				dest[2] = b;
#endif
				break;
			}
			source++;
			dest += VIDEO_PIXEL_SIZE;
		}
		dest += skip;
	}
#ifdef CONFIG_VIDEO_BMP_LOGO
	free (logo_red);
	free (logo_green);
	free (logo_blue);
#endif
}

/*****************************************************************************/

static void *video_logo (void)
{
	char info[128];
	extern char version_string;

#ifdef CONFIG_SPLASH_SCREEN
	char *s;
	ulong addr;

	if ((s = getenv ("splashimage")) != NULL) {
		addr = simple_strtoul (s, NULL, 16);

		if (video_display_bitmap (addr, 0, 0) == 0) {
			return ((void *) (video_fb_address));
		}
	}
#endif /* CONFIG_SPLASH_SCREEN */


	logo_plot (video_fb_address, VIDEO_COLS, 0, 0);

	sprintf (info, " %s", &version_string);
	video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y, info);

#ifdef CONFIG_CONSOLE_EXTRA_INFO
	{
		int i, n = ((VIDEO_LOGO_HEIGHT - VIDEO_FONT_HEIGHT) / VIDEO_FONT_HEIGHT);

		for (i = 1; i < n; i++) {
			video_get_info_str (i, info);
			if (*info)
				video_drawstring (VIDEO_INFO_X,
						  VIDEO_INFO_Y + i * VIDEO_FONT_HEIGHT,
						  info);
		}
	}
#endif

	return (video_fb_address + VIDEO_LOGO_HEIGHT * VIDEO_LINE_LEN);
}
#endif


/*****************************************************************************/

static int video_init (void)
{
	unsigned char color8;

	if ((pGD = video_hw_init ()) == NULL)
		return -1;

	video_fb_address = (void *) VIDEO_FB_ADRS;
#ifdef CONFIG_VIDEO_HW_CURSOR
	video_init_hw_cursor (VIDEO_FONT_WIDTH, VIDEO_FONT_HEIGHT);
#endif

	/* Init drawing pats */
	switch (VIDEO_DATA_FORMAT) {
	case GDF__8BIT_INDEX:
		video_set_lut (0x01, CONSOLE_FG_COL, CONSOLE_FG_COL, CONSOLE_FG_COL);
		video_set_lut (0x00, CONSOLE_BG_COL, CONSOLE_BG_COL, CONSOLE_BG_COL);
		fgx = 0x01010101;
		bgx = 0x00000000;
		break;
	case GDF__8BIT_332RGB:
		color8 = ((CONSOLE_FG_COL & 0xe0) |
			  ((CONSOLE_FG_COL >> 3) & 0x1c) | CONSOLE_FG_COL >> 6);
		fgx = (color8 << 24) | (color8 << 16) | (color8 << 8) | color8;
		color8 = ((CONSOLE_BG_COL & 0xe0) |
			  ((CONSOLE_BG_COL >> 3) & 0x1c) | CONSOLE_BG_COL >> 6);
		bgx = (color8 << 24) | (color8 << 16) | (color8 << 8) | color8;
		break;
	case GDF_15BIT_555RGB:
		fgx = (((CONSOLE_FG_COL >> 3) << 26) |
		       ((CONSOLE_FG_COL >> 3) << 21) | ((CONSOLE_FG_COL >> 3) << 16) |
		       ((CONSOLE_FG_COL >> 3) << 10) | ((CONSOLE_FG_COL >> 3) << 5) |
		       (CONSOLE_FG_COL >> 3));
		bgx = (((CONSOLE_BG_COL >> 3) << 26) |
		       ((CONSOLE_BG_COL >> 3) << 21) | ((CONSOLE_BG_COL >> 3) << 16) |
		       ((CONSOLE_BG_COL >> 3) << 10) | ((CONSOLE_BG_COL >> 3) << 5) |
		       (CONSOLE_BG_COL >> 3));
		break;
	case GDF_16BIT_565RGB:
		fgx = (((CONSOLE_FG_COL >> 3) << 27) |
		       ((CONSOLE_FG_COL >> 2) << 21) | ((CONSOLE_FG_COL >> 3) << 16) |
		       ((CONSOLE_FG_COL >> 3) << 11) | ((CONSOLE_FG_COL >> 2) << 5) |
		       (CONSOLE_FG_COL >> 3));
		bgx = (((CONSOLE_BG_COL >> 3) << 27) |
		       ((CONSOLE_BG_COL >> 2) << 21) | ((CONSOLE_BG_COL >> 3) << 16) |
		       ((CONSOLE_BG_COL >> 3) << 11) | ((CONSOLE_BG_COL >> 2) << 5) |
		       (CONSOLE_BG_COL >> 3));
		break;
	case GDF_32BIT_X888RGB:
		fgx = (CONSOLE_FG_COL << 16) | (CONSOLE_FG_COL << 8) | CONSOLE_FG_COL;
		bgx = (CONSOLE_BG_COL << 16) | (CONSOLE_BG_COL << 8) | CONSOLE_BG_COL;
		break;
	case GDF_24BIT_888RGB:
		fgx = (CONSOLE_FG_COL << 24) | (CONSOLE_FG_COL << 16) |
			(CONSOLE_FG_COL << 8) | CONSOLE_FG_COL;
		bgx = (CONSOLE_BG_COL << 24) | (CONSOLE_BG_COL << 16) |
			(CONSOLE_BG_COL << 8) | CONSOLE_BG_COL;
		break;
	}
	eorx = fgx ^ bgx;

	video_clear ();
#ifdef CONFIG_VIDEO_LOGO
	/* Plot the logo and get start point of console */
	PRINTD ("Video: Drawing the logo ...\n");
	video_console_address = video_logo ();
#else
	video_console_address = video_fb_address;
#endif

	/* Initialize the console */
	console_col = 0;
	console_row = 0;

	return 0;
}

static void video_clear (void)
{
#ifdef CONFIG_VIDEO_SM501
	video_hw_rectfill (VIDEO_PIXEL_SIZE,	/* bytes per pixel */
			   0,	/* dest pos x */
			   0,	/* dest pos y */
			   VIDEO_VISIBLE_COLS,	/* frame width */
			   VIDEO_VISIBLE_ROWS,	/* frame height */
			   CONSOLE_BG_COL	/* fill color */
		);
#else
	int size = pGD->winSizeX * pGD->winSizeY * pGD->gdfBytesPP;
	memset ((void *)pGD->frameAdrs, 0x0, size);
	
#endif
}

/*****************************************************************************/

int drv_video_init (void)
{
	int skip_dev_init;
	device_t console_dev;

	skip_dev_init = 0;

	/* Init video chip - returns with framebuffer cleared */
	if (video_init () == -1)
		skip_dev_init = 1;

#ifdef CONFIG_VGA_AS_SINGLE_DEVICE
	/* Devices VGA and Keyboard will be assigned seperately */
	/* Init vga device */
	if (!skip_dev_init) {
		memset (&console_dev, 0, sizeof (console_dev));
		strcpy (console_dev.name, "vga");
		console_dev.ext = DEV_EXT_VIDEO;	/* Video extensions */
		console_dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_SYSTEM;
		console_dev.putc = video_putc;	/* 'putc' function */
		console_dev.puts = video_puts;	/* 'puts' function */
		console_dev.tstc = NULL;	/* 'tstc' function */
		console_dev.getc = NULL;	/* 'getc' function */

		if (device_register (&console_dev) == 0)
			return 1;
	}
#else
//    PRINTD("KBD: Keyboard init ...\n");
 //   if (VIDEO_KBD_INIT_FCT == -1)
//	skip_dev_init = 1;

    /* Init console device */
//    if (!skip_dev_init)
 //   {
//	memset (&console_dev, 0, sizeof(console_dev));
//	strcpy(console_dev.name, "console");
//	console_dev.ext   = DEV_EXT_VIDEO;    /* Video extensions */
//	console_dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
//	console_dev.putc  = video_putc;        /* 'putc' function */
//	console_dev.puts  = video_puts;        /* 'puts' function */
//	console_dev.tstc  = VIDEO_TSTC_FCT;    /* 'tstc' function */
//	console_dev.getc  = VIDEO_GETC_FCT;    /* 'getc' function */

//	if (device_register (&console_dev) == 0)
//	    return 1;
 //   }
#endif /* CONFIG_VGA_AS_SINGLE_DEVICE */
	/* No console dev available */
	return 0;
}
#ifdef CONFIG_VIDEO_SM501
int do_clear(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
	console_col = 0;
	console_row = 0;
	video_clear ();
}

U_BOOT_CMD(
	clear, 5,	1,	do_clear,
	"clear   - clear screen\n",
);
#endif
#endif /* CONFIG_CFB_CONSOLE */