// 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 <cpu_func.h>
#include <env_callback.h>
#include <log.h>
#include <asm/cache.h>
#include <init.h>
#include <asm/global_data.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

#if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \
        (LCD_BPP != LCD_COLOR32)
#error Unsupported LCD BPP.
#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) && !CONFIG_IS_ENABLED(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]\n",
                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)
{
        int bg_color;
        __maybe_unused ulong addr;
        static int do_splash = 1;
#if 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);
        bg_color = CONSOLE_COLOR_WHITE;
#else
        lcd_setfgcolor(CONSOLE_COLOR_WHITE);
        lcd_setbgcolor(CONSOLE_COLOR_BLACK);
        bg_color = 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, bg_color, 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++ = bg_color;
        }
#endif
#endif
        /* setup text-console */
        debug("[LCD] setting up console...\n");
        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...\n");
        if (do_splash) {
                if (splash_display() == 0) {
                        do_splash = 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\n", 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\n", 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: %d x %d, %d bit/pix\n", 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\n",
              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\n",
              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\n", 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\n", 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\n",
                        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\n",
                        bpix, get_unaligned_le16(&bmp->header.bit_count));
                return 1;
        }

        debug("Display-bmp: %d x %d  with %d colors, display %d\n",
              (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\n", 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 = hextoul(value, NULL);
        /* 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

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

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