lcd.c

	switch (bmp_bpix) {
	case 1: /* pass through */
	case 8: {
#ifdef CONFIG_LCD_BMP_RLE8
		u32 compression = get_unaligned_le32(&bmp->header.compression);
		if (compression == BMP_BI_RLE8) {
			if (bpix != 16) {
				/* TODO implement render code for bpix != 16 */
				printf("Error: only support 16 bpix");
				return 1;
			}
			lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
			break;
		}
#endif

		if (bpix != 16)
			byte_width = width;
		else
			byte_width = width * 2;

		for (i = 0; i < height; ++i) {
			WATCHDOG_RESET();
			for (j = 0; j < width; j++) {
				if (bpix != 16) {
					FB_PUT_BYTE(fb, bmap);
				} else {
					*(uint16_t *)fb = cmap_base[*(bmap++)];
					fb += sizeof(uint16_t) / sizeof(*fb);
				}
			}
			bmap += (padded_width - width);
			fb -= byte_width + lcd_line_length;
		}
		break;
	}
#if defined(CONFIG_BMP_16BPP)
	case 16:
		for (i = 0; i < height; ++i) {
			WATCHDOG_RESET();
			for (j = 0; j < width; j++)
				fb_put_word(&fb, &bmap);

			bmap += (padded_width - width) * 2;
			fb -= width * 2 + lcd_line_length;
		}
		break;
#endif /* CONFIG_BMP_16BPP */
#if defined(CONFIG_BMP_24BMP)
	case 24:
		for (i = 0; i < height; ++i) {
			for (j = 0; j < width; j++) {
				*(fb++) = *(bmap++);
				*(fb++) = *(bmap++);
				*(fb++) = *(bmap++);
				*(fb++) = 0;
			}
			fb -= lcd_line_length + width * (bpix / 8);
		}
		break;
#endif /* CONFIG_BMP_24BMP */
#if defined(CONFIG_BMP_32BPP)
	case 32:
		for (i = 0; i < height; ++i) {
			for (j = 0; j < width; j++) {
				*(fb++) = *(bmap++);
				*(fb++) = *(bmap++);
				*(fb++) = *(bmap++);
				*(fb++) = *(bmap++);
			}
			fb -= lcd_line_length + width * (bpix / 8);
		}
		break;
#endif /* CONFIG_BMP_32BPP */
	default:
		break;
	};

	lcd_sync();
	return 0;
}
#endif

static void *lcd_logo(void)
{
#ifdef CONFIG_SPLASH_SCREEN
	char *s;
	ulong addr;
	static int do_splash = 1;

	if (do_splash && (s = getenv("splashimage")) != NULL) {
		int x = 0, y = 0;
		do_splash = 0;

		if (splash_screen_prepare())
			return (void *)lcd_base;

		addr = simple_strtoul (s, NULL, 16);

		splash_get_pos(&x, &y);

		if (bmp_display(addr, x, y) == 0)
			return (void *)lcd_base;
	}
#endif /* CONFIG_SPLASH_SCREEN */

	bitmap_plot(0, 0);

#ifdef CONFIG_LCD_INFO
	console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
	console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
	lcd_show_board_info();
#endif /* CONFIG_LCD_INFO */

#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
	return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length);
#else
	return (void *)lcd_base;
#endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */
}

#ifdef CONFIG_SPLASHIMAGE_GUARD
static int on_splashimage(const char *name, const char *value, enum env_op op,
	int flags)
{
	ulong addr;
	int aligned;

	if (op == env_op_delete)
		return 0;

	addr = simple_strtoul(value, NULL, 16);
	/* See README.displaying-bmps */
	aligned = (addr % 4 == 2);
	if (!aligned) {
		printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
		return -1;
	}

	return 0;
}

U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
#endif

void lcd_position_cursor(unsigned col, unsigned row)
{
	console_col = min(col, CONSOLE_COLS - 1);
	console_row = min(row, CONSOLE_ROWS - 1);
}

int lcd_get_pixel_width(void)
{
	return panel_info.vl_col;
}

int lcd_get_pixel_height(void)
{
	return panel_info.vl_row;
}

int lcd_get_screen_rows(void)
{
	return CONSOLE_ROWS;
}

int lcd_get_screen_columns(void)
{
	return CONSOLE_COLS;
}

#if defined(CONFIG_LCD_DT_SIMPLEFB)
static int lcd_dt_simplefb_configure_node(void *blob, int off)
{
	u32 stride;
	fdt32_t cells[2];
	int ret;
	static const char format[] =
#if LCD_BPP == LCD_COLOR16
		"r5g6b5";
#else
		"";
#endif

	if (!format[0])
		return -1;

	stride = panel_info.vl_col * 2;

	cells[0] = cpu_to_fdt32(gd->fb_base);
	cells[1] = cpu_to_fdt32(stride * panel_info.vl_row);
	ret = fdt_setprop(blob, off, "reg", cells, sizeof(cells[0]) * 2);
	if (ret < 0)
		return -1;

	cells[0] = cpu_to_fdt32(panel_info.vl_col);
	ret = fdt_setprop(blob, off, "width", cells, sizeof(cells[0]));
	if (ret < 0)
		return -1;

	cells[0] = cpu_to_fdt32(panel_info.vl_row);
	ret = fdt_setprop(blob, off, "height", cells, sizeof(cells[0]));
	if (ret < 0)
		return -1;

	cells[0] = cpu_to_fdt32(stride);
	ret = fdt_setprop(blob, off, "stride", cells, sizeof(cells[0]));
	if (ret < 0)
		return -1;

	ret = fdt_setprop(blob, off, "format", format, strlen(format) + 1);
	if (ret < 0)
		return -1;

	ret = fdt_delprop(blob, off, "status");
	if (ret < 0)
		return -1;

	return 0;
}

int lcd_dt_simplefb_add_node(void *blob)
{
	static const char compat[] = "simple-framebuffer";
	static const char disabled[] = "disabled";
	int off, ret;

	off = fdt_add_subnode(blob, 0, "framebuffer");
	if (off < 0)
		return -1;

	ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled));
	if (ret < 0)
		return -1;

	ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat));
	if (ret < 0)
		return -1;

	return lcd_dt_simplefb_configure_node(blob, off);
}

int lcd_dt_simplefb_enable_existing_node(void *blob)
{
	int off;

	off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer");
	if (off < 0)
		return -1;

	return lcd_dt_simplefb_configure_node(blob, off);
}
#endif