// SPDX-License-Identifier: GPL-2.0+

  /*

   * Common LCD routines

   *
   * (C) Copyright 2001-2002
   * Wolfgang Denk, DENX Software Engineering -- wd@denx.de

   */

  /* #define DEBUG */

  #include <config.h>
  #include <common.h>
  #include <command.h>

  #include <env_callback.h>

  #include <linux/types.h>

  #include <stdio_dev.h>

  #include <lcd.h>

  #include <mapmem.h>

  #include <watchdog.h>

  #include <asm/unaligned.h>

  #include <splash.h>

  #include <asm/io.h>
  #include <asm/unaligned.h>

  #include <video_font.h>

  #ifdef CONFIG_LCD_LOGO

  #include <bmp_logo.h>
  #include <bmp_logo_data.h>
  #if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
  #error Default Color Map overlaps with Logo Color Map
  #endif

  #endif

  #ifndef CONFIG_LCD_ALIGNMENT
  #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
  #endif

  DECLARE_GLOBAL_DATA_PTR;

  static int lcd_init(void *lcdbase);

  static void lcd_logo(void);

  static void lcd_setfgcolor(int color);
  static void lcd_setbgcolor(int color);

  static int lcd_color_fg;
  static int lcd_color_bg;

  int lcd_line_length;

  char lcd_is_enabled = 0;

  static void *lcd_base;			/* Start of framebuffer memory	*/

  static char lcd_flush_dcache;	/* 1 to flush dcache after each lcd update */

  /* Flush LCD activity to the caches */
  void lcd_sync(void)
  {
  	/*
  	 * flush_dcache_range() is declared in common.h but it seems that some
  	 * architectures do not actually implement it. Is there a way to find
  	 * out whether it exists? For now, ARM is safe.
  	 */
  #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
  	int line_length;
  
  	if (lcd_flush_dcache)

  		flush_dcache_range((ulong)lcd_base,
  			(ulong)(lcd_base + lcd_get_size(&line_length)));

  #endif
  }
  
  void lcd_set_flush_dcache(int flush)
  {
  	lcd_flush_dcache = (flush != 0);
  }

  static void lcd_stub_putc(struct stdio_dev *dev, const char c)
  {
  	lcd_putc(c);
  }

  static void lcd_stub_puts(struct stdio_dev *dev, const char *s)
  {
  	lcd_puts(s);
  }

  /* Small utility to check that you got the colours right */

  #ifdef LCD_TEST_PATTERN

  #if LCD_BPP == LCD_COLOR8

  #define	N_BLK_VERT	2
  #define	N_BLK_HOR	3

  static int test_colors[N_BLK_HOR * N_BLK_VERT] = {

  	CONSOLE_COLOR_RED,	CONSOLE_COLOR_GREEN,	CONSOLE_COLOR_YELLOW,
  	CONSOLE_COLOR_BLUE,	CONSOLE_COLOR_MAGENTA,	CONSOLE_COLOR_CYAN,

  }; /*LCD_BPP == LCD_COLOR8 */
  
  #elif LCD_BPP == LCD_COLOR16
  #define	N_BLK_VERT	2
  #define	N_BLK_HOR	4
  
  static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
  	CONSOLE_COLOR_RED,	CONSOLE_COLOR_GREEN,	CONSOLE_COLOR_YELLOW,	CONSOLE_COLOR_BLUE,
  	CONSOLE_COLOR_MAGENTA,	CONSOLE_COLOR_CYAN,	CONSOLE_COLOR_GREY,	CONSOLE_COLOR_WHITE,

  };

  #endif /*LCD_BPP == LCD_COLOR16 */

  static void test_pattern(void)

  {
  	ushort v_max  = panel_info.vl_row;
  	ushort h_max  = panel_info.vl_col;
  	ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
  	ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
  	ushort v, h;

  #if LCD_BPP == LCD_COLOR8

  	uchar *pix = (uchar *)lcd_base;

  #elif LCD_BPP == LCD_COLOR16
  	ushort *pix = (ushort *)lcd_base;
  #endif

  	printf("[LCD] Test Pattern: %d x %d [%d x %d]
  ",

  		h_max, v_max, h_step, v_step);

  	for (v = 0; v < v_max; ++v) {

  		uchar iy = v / v_step;

  		for (h = 0; h < h_max; ++h) {

  			uchar ix = N_BLK_HOR * iy + h / h_step;

  			*pix++ = test_colors[ix];
  		}
  	}
  }
  #endif /* LCD_TEST_PATTERN */

  /*
   * With most lcd drivers the line length is set up
   * by calculating it from panel_info parameters. Some
   * drivers need to calculate the line length differently,
   * so make the function weak to allow overriding it.
   */
  __weak int lcd_get_size(int *line_length)

  {
  	*line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
  	return *line_length * panel_info.vl_row;
  }

  int drv_lcd_init(void)

  {

  	struct stdio_dev lcddev;

  	int rc;

  	lcd_base = map_sysmem(gd->fb_base, 0);

  	lcd_init(lcd_base);

  
  	/* Device initialization */

  	memset(&lcddev, 0, sizeof(lcddev));

  	strcpy(lcddev.name, "lcd");

  	lcddev.ext   = 0;			/* No extensions */
  	lcddev.flags = DEV_FLAGS_OUTPUT;	/* Output only */

  	lcddev.putc  = lcd_stub_putc;		/* 'putc' function */
  	lcddev.puts  = lcd_stub_puts;		/* 'puts' function */

  	rc = stdio_register(&lcddev);

  
  	return (rc == 0) ? 1 : rc;
  }

  void lcd_clear(void)

  {

  	char *s;
  	ulong addr;
  	static int do_splash = 1;

  #if LCD_BPP == LCD_MONOCHROME
  	/* Setting the palette */
  	lcd_initcolregs();
  
  #elif LCD_BPP == LCD_COLOR8

  	/* Setting the palette */

  	lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
  	lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
  	lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
  	lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
  	lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
  	lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
  	lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
  	lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
  	lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);

  #endif

  #ifndef CONFIG_SYS_WHITE_ON_BLACK

  	lcd_setfgcolor(CONSOLE_COLOR_BLACK);
  	lcd_setbgcolor(CONSOLE_COLOR_WHITE);

  #else

  	lcd_setfgcolor(CONSOLE_COLOR_WHITE);
  	lcd_setbgcolor(CONSOLE_COLOR_BLACK);

  #endif	/* CONFIG_SYS_WHITE_ON_BLACK */

  
  #ifdef	LCD_TEST_PATTERN
  	test_pattern();
  #else
  	/* set framebuffer to background color */

  #if (LCD_BPP != LCD_COLOR32)

  	memset((char *)lcd_base, COLOR_MASK(lcd_getbgcolor()),
  	       lcd_line_length * panel_info.vl_row);

  #else
  	u32 *ppix = lcd_base;
  	u32 i;
  	for (i = 0;
  	   i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix);
  	   i++) {

  		*ppix++ = COLOR_MASK(lcd_getbgcolor());

  	}
  #endif

  #endif

  	/* setup text-console */
  	debug("[LCD] setting up console...
  ");
  	lcd_init_console(lcd_base,
  			 panel_info.vl_col,
  			 panel_info.vl_row,
  			 panel_info.vl_rot);

  	/* Paint the logo and retrieve LCD base address */

  	debug("[LCD] Drawing the logo...
  ");

  	if (do_splash) {

  		s = env_get("splashimage");

  		if (s) {
  			do_splash = 0;
  			addr = simple_strtoul(s, NULL, 16);
  			if (lcd_splash(addr) == 0) {
  				lcd_sync();
  				return;
  			}
  		}
  	}
  
  	lcd_logo();
  #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
  	addr = (ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length;

  	lcd_init_console((void *)addr, panel_info.vl_col,
  			 panel_info.vl_row, panel_info.vl_rot);

  #endif

  	lcd_sync();
  }

  static int lcd_init(void *lcdbase)

  {

  	debug("[LCD] Initializing LCD frambuffer at %p
  ", lcdbase);

  	lcd_ctrl_init(lcdbase);

  
  	/*

  	 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores

  	 * the 'lcdbase' argument and uses custom lcd base address
  	 * by setting up gd->fb_base. Check for this condition and fixup
  	 * 'lcd_base' address.
  	 */

  	if (map_to_sysmem(lcdbase) != gd->fb_base)
  		lcd_base = map_sysmem(gd->fb_base, 0);

  
  	debug("[LCD] Using LCD frambuffer at %p
  ", lcd_base);

  	lcd_get_size(&lcd_line_length);

  	lcd_is_enabled = 1;

  	lcd_clear();

  	lcd_enable();

  
  	/* Initialize the console */

  	lcd_set_col(0);

  #ifdef CONFIG_LCD_INFO_BELOW_LOGO

  	lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT);

  #else

  	lcd_set_row(1);	/* leave 1 blank line below logo */

  #endif

  
  	return 0;
  }

  /*
   * This is called early in the system initialization to grab memory
   * for the LCD controller.
   * Returns new address for monitor, after reserving LCD buffer memory
   *
   * Note that this is running from ROM, so no write access to global data.
   */

  ulong lcd_setmem(ulong addr)

  {
  	ulong size;

  	int line_length;

  	debug("LCD panel info: %lu x %lu, %d bit/pix
  ", panel_info.vl_col,

  		panel_info.vl_row, NBITS(panel_info.vl_bpix));

  	size = lcd_get_size(&line_length);

  	/* Round up to nearest full page, or MMU section if defined */
  	size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
  	addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);

  
  	/* Allocate pages for the frame buffer. */
  	addr -= size;

  	debug("Reserving %ldk for LCD Framebuffer at: %08lx
  ",
  	      size >> 10, addr);

  	return addr;

  }

  static void lcd_setfgcolor(int color)

  {

  	lcd_color_fg = color;

  }

  int lcd_getfgcolor(void)
  {
  	return lcd_color_fg;
  }

  static void lcd_setbgcolor(int color)

  {

  	lcd_color_bg = color;

  }

  int lcd_getbgcolor(void)
  {
  	return lcd_color_bg;
  }

  #ifdef CONFIG_LCD_LOGO

  __weak void lcd_logo_set_cmap(void)
  {

  	int i;
  	ushort *cmap = configuration_get_cmap();
  
  	for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i)
  		*cmap++ = bmp_logo_palette[i];

  }

  void lcd_logo_plot(int x, int y)

  {

  	ushort i, j;

  	uchar *bmap = &bmp_logo_bitmap[0];

  	unsigned bpix = NBITS(panel_info.vl_bpix);

  	uchar *fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
  	ushort *fb16;

  	debug("Logo: width %d  height %d  colors %d
  ",
  	      BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS);

  	if (bpix < 12) {

  		WATCHDOG_RESET();

  		lcd_logo_set_cmap();

  		WATCHDOG_RESET();

  		for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
  			memcpy(fb, bmap, BMP_LOGO_WIDTH);

  			bmap += BMP_LOGO_WIDTH;

  			fb += panel_info.vl_col;

  		}
  	}
  	else { /* true color mode */

  		u16 col16;

  		fb16 = (ushort *)fb;

  		for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
  			for (j = 0; j < BMP_LOGO_WIDTH; j++) {

  				col16 = bmp_logo_palette[(bmap[j]-16)];
  				fb16[j] =
  					((col16 & 0x000F) << 1) |
  					((col16 & 0x00F0) << 3) |
  					((col16 & 0x0F00) << 4);

  				}
  			bmap += BMP_LOGO_WIDTH;
  			fb16 += panel_info.vl_col;
  		}
  	}
  
  	WATCHDOG_RESET();

  	lcd_sync();

  }

  #else

  static inline void lcd_logo_plot(int x, int y) {}

  #endif /* CONFIG_LCD_LOGO */

  #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)

  #ifdef CONFIG_SPLASH_SCREEN_ALIGN

  
  static void splash_align_axis(int *axis, unsigned long panel_size,
  					unsigned long picture_size)
  {
  	unsigned long panel_picture_delta = panel_size - picture_size;
  	unsigned long axis_alignment;
  
  	if (*axis == BMP_ALIGN_CENTER)
  		axis_alignment = panel_picture_delta / 2;
  	else if (*axis < 0)
  		axis_alignment = panel_picture_delta + *axis + 1;
  	else
  		return;

  	*axis = max(0, (int)axis_alignment);

  }

  #endif

  #ifdef CONFIG_LCD_BMP_RLE8

  #define BMP_RLE8_ESCAPE		0
  #define BMP_RLE8_EOL		0
  #define BMP_RLE8_EOBMP		1
  #define BMP_RLE8_DELTA		2
  
  static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
  				  int cnt)
  {
  	while (cnt > 0) {
  		*(*fbp)++ = cmap[*bmap++];
  		cnt--;
  	}
  }
  
  static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
  {
  	ushort *fb = *fbp;
  	int cnt_8copy = cnt >> 3;
  
  	cnt -= cnt_8copy << 3;
  	while (cnt_8copy > 0) {
  		*fb++ = c;
  		*fb++ = c;
  		*fb++ = c;
  		*fb++ = c;
  		*fb++ = c;
  		*fb++ = c;
  		*fb++ = c;
  		*fb++ = c;
  		cnt_8copy--;
  	}
  	while (cnt > 0) {
  		*fb++ = c;
  		cnt--;
  	}

  	*fbp = fb;

  }
  
  /*

   * Do not call this function directly, must be called from lcd_display_bitmap.

   */

  static void lcd_display_rle8_bitmap(struct bmp_image *bmp, ushort *cmap,
  				    uchar *fb, int x_off, int y_off)

  {
  	uchar *bmap;
  	ulong width, height;
  	ulong cnt, runlen;
  	int x, y;
  	int decode = 1;

  	width = get_unaligned_le32(&bmp->header.width);
  	height = get_unaligned_le32(&bmp->header.height);
  	bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);

  
  	x = 0;
  	y = height - 1;
  
  	while (decode) {
  		if (bmap[0] == BMP_RLE8_ESCAPE) {
  			switch (bmap[1]) {
  			case BMP_RLE8_EOL:
  				/* end of line */
  				bmap += 2;
  				x = 0;
  				y--;
  				/* 16bpix, 2-byte per pixel, width should *2 */
  				fb -= (width * 2 + lcd_line_length);
  				break;
  			case BMP_RLE8_EOBMP:
  				/* end of bitmap */
  				decode = 0;
  				break;
  			case BMP_RLE8_DELTA:
  				/* delta run */
  				x += bmap[2];
  				y -= bmap[3];
  				/* 16bpix, 2-byte per pixel, x should *2 */
  				fb = (uchar *) (lcd_base + (y + y_off - 1)
  					* lcd_line_length + (x + x_off) * 2);
  				bmap += 4;
  				break;
  			default:
  				/* unencoded run */
  				runlen = bmap[1];
  				bmap += 2;
  				if (y < height) {
  					if (x < width) {
  						if (x + runlen > width)
  							cnt = width - x;
  						else
  							cnt = runlen;
  						draw_unencoded_bitmap(
  							(ushort **)&fb,
  							bmap, cmap, cnt);
  					}
  					x += runlen;
  				}
  				bmap += runlen;
  				if (runlen & 1)
  					bmap++;
  			}
  		} else {
  			/* encoded run */
  			if (y < height) {
  				runlen = bmap[0];
  				if (x < width) {
  					/* aggregate the same code */
  					while (bmap[0] == 0xff &&
  					       bmap[2] != BMP_RLE8_ESCAPE &&
  					       bmap[1] == bmap[3]) {
  						runlen += bmap[2];
  						bmap += 2;
  					}
  					if (x + runlen > width)
  						cnt = width - x;
  					else
  						cnt = runlen;
  					draw_encoded_bitmap((ushort **)&fb,
  						cmap[bmap[1]], cnt);
  				}
  				x += runlen;
  			}
  			bmap += 2;
  		}
  	}
  }
  #endif

  __weak void fb_put_byte(uchar **fb, uchar **from)
  {
  	*(*fb)++ = *(*from)++;
  }

  
  #if defined(CONFIG_BMP_16BPP)

  __weak void fb_put_word(uchar **fb, uchar **from)

  {
  	*(*fb)++ = *(*from)++;
  	*(*fb)++ = *(*from)++;
  }

  #endif /* CONFIG_BMP_16BPP */

  __weak void lcd_set_cmap(struct bmp_image *bmp, unsigned colors)

  {
  	int i;

  	struct bmp_color_table_entry cte;

  	ushort *cmap = configuration_get_cmap();
  
  	for (i = 0; i < colors; ++i) {
  		cte = bmp->color_table[i];
  		*cmap = (((cte.red)   << 8) & 0xf800) |
  			(((cte.green) << 3) & 0x07e0) |
  			(((cte.blue)  >> 3) & 0x001f);

  		cmap++;

  	}
  }

  int lcd_display_bitmap(ulong bmp_image, int x, int y)
  {

  	ushort *cmap_base = NULL;

  	ushort i, j;
  	uchar *fb;

  	struct bmp_image *bmp = (struct bmp_image *)map_sysmem(bmp_image, 0);

  	uchar *bmap;

  	ushort padded_width;

  	unsigned long width, height, byte_width;

  	unsigned long pwidth = panel_info.vl_col;

  	unsigned colors, bpix, bmp_bpix;

  	int hdr_size;

  	struct bmp_color_table_entry *palette;

  	if (!bmp || !(bmp->header.signature[0] == 'B' &&
  		bmp->header.signature[1] == 'M')) {

  		printf("Error: no valid bmp image at %lx
  ", bmp_image);

  		return 1;

  	}

  	palette = bmp->color_table;

  	width = get_unaligned_le32(&bmp->header.width);
  	height = get_unaligned_le32(&bmp->header.height);
  	bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);

  	hdr_size = get_unaligned_le16(&bmp->header.size);
  	debug("hdr_size=%d, bmp_bpix=%d
  ", hdr_size, bmp_bpix);

  	colors = 1 << bmp_bpix;

  
  	bpix = NBITS(panel_info.vl_bpix);

  	if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {

  		printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel
  ",
  			bpix, bmp_bpix);

  		return 1;
  	}

  	/*
  	 * We support displaying 8bpp BMPs on 16bpp LCDs
  	 * and displaying 24bpp BMPs on 32bpp LCDs
  	 * */
  	if (bpix != bmp_bpix &&
  	    !(bmp_bpix == 8 && bpix == 16) &&
  	    !(bmp_bpix == 24 && bpix == 32)) {

  		printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel
  ",

  			bpix, get_unaligned_le16(&bmp->header.bit_count));

  		return 1;
  	}

  	debug("Display-bmp: %d x %d  with %d colors, display %d
  ",
  	      (int)width, (int)height, (int)colors, 1 << bpix);

  	if (bmp_bpix == 8)
  		lcd_set_cmap(bmp, colors);

  	padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);

  
  #ifdef CONFIG_SPLASH_SCREEN_ALIGN

  	splash_align_axis(&x, pwidth, width);
  	splash_align_axis(&y, panel_info.vl_row, height);

  #endif /* CONFIG_SPLASH_SCREEN_ALIGN */

  	if ((x + width) > pwidth)

  		width = pwidth - x;

  	if ((y + height) > panel_info.vl_row)

  		height = panel_info.vl_row - y;

  	bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
  	fb   = (uchar *)(lcd_base +

  		(y + height - 1) * lcd_line_length + x * bpix / 8);

  	switch (bmp_bpix) {

  	case 1:

  	case 8: {

  		cmap_base = configuration_get_cmap();

  #ifdef CONFIG_LCD_BMP_RLE8

  		u32 compression = get_unaligned_le32(&bmp->header.compression);

  		debug("compressed %d %d
  ", compression, BMP_BI_RLE8);

  		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 {

  					struct bmp_color_table_entry *entry;
  					uint val;
  
  					if (cmap_base) {
  						val = cmap_base[*bmap];
  					} else {
  						entry = &palette[*bmap];
  						val = entry->blue >> 3 |
  							entry->green >> 2 << 5 |
  							entry->red >> 3 << 11;
  					}
  					*(uint16_t *)fb = val;
  					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_24BPP)

  	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_24BPP */

  #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)

  {

  	lcd_logo_plot(0, 0);

  #ifdef CONFIG_LCD_INFO

  	lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH);
  	lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT);

  	lcd_show_board_info();
  #endif /* CONFIG_LCD_INFO */

  }

  #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
  ");
  		return -1;
  	}
  
  	return 0;
  }
  
  U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
  #endif

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