/*
 * (C) Copyright 2002 ELTEC Elektronik AG
 * Frank Gottschling <fgottschling@eltec.de>
 *
 * SPDX-License-Identifier:     GPL-2.0+
 */

/*
 * cfb_console.c
 *
 * Color Framebuffer Console driver for 8/15/16/24/32 bits per pixel.
 *
 * At the moment only the 8x16 font is tested and the font fore- and
 * background color is limited to black/white/gray colors. The Linux
 * logo can be placed in the upper left corner and additional board
 * information strings (that normally goes to serial port) can be drawn.
 *
 * The console driver can use a keyboard interface for character input
 * but this is deprecated. Only rk51 uses it.
 *
 * Character output goes to a memory-mapped video
 * framebuffer with little or big-endian organisation.
 * With environment setting 'console=serial' the console i/o can be
 * forced to serial port.
 *
 * The driver uses graphic specific defines/parameters/functions:
 *
 * (for SMI LynxE graphic chip)
 *
 * VIDEO_FB_LITTLE_ENDIAN     - framebuffer organisation default: big endian
 * VIDEO_HW_RECTFILL          - graphic driver supports hardware rectangle fill
 * VIDEO_HW_BITBLT            - graphic driver supports hardware bit blt
 *
 * Console Parameters are set by graphic drivers global struct:
 *
 * VIDEO_VISIBLE_COLS         - x resolution
 * VIDEO_VISIBLE_ROWS         - y resolution
 * VIDEO_PIXEL_SIZE           - storage size in byte per pixel
 * VIDEO_DATA_FORMAT          - graphical data format GDF
 * VIDEO_FB_ADRS              - start of video memory
 *
 * VIDEO_KBD_INIT_FCT         - init function for keyboard
 * VIDEO_TSTC_FCT             - keyboard_tstc function
 * VIDEO_GETC_FCT             - keyboard_getc function
 *
 * CONFIG_VIDEO_LOGO          - display Linux Logo in upper left corner.
 *                              Use CONFIG_SPLASH_SCREEN_ALIGN with
 *                              environment variable "splashpos" to place
 *                              the logo on other position. In this case
 *                              no CONSOLE_EXTRA_INFO is possible.
 * CONFIG_VIDEO_BMP_LOGO      - use bmp_logo instead of linux_logo
 * CONFIG_CONSOLE_EXTRA_INFO  - display additional board information
 *                              strings that normaly goes to serial
 *                              port.  This define requires a board
 *                              specific function:
 *                              video_drawstring (VIDEO_INFO_X,
 *                                      VIDEO_INFO_Y + i*VIDEO_FONT_HEIGHT,
 *                                      info);
 *                              that fills a info buffer at i=row.
 *                              s.a: board/eltec/bab7xx.
 *
 * CONFIG_VIDEO_SW_CURSOR:    - Draws a cursor after the last
 *                              character. No blinking is provided.
 *                              Uses the macros CURSOR_SET and
 *                              CURSOR_OFF.
 */

#include <common.h>
#include <fdtdec.h>
#include <version.h>
#include <malloc.h>
#include <video.h>
#include <linux/compiler.h>

/*
 * Defines for the CT69000 driver
 */
#ifdef  CONFIG_VIDEO_CT69000

#define VIDEO_FB_LITTLE_ENDIAN
#define VIDEO_HW_RECTFILL
#define VIDEO_HW_BITBLT
#endif

#if defined(CONFIG_VIDEO_MXS)
#define VIDEO_FB_16BPP_WORD_SWAP
#endif

/*
 * Defines for the MB862xx driver
 */
#ifdef CONFIG_VIDEO_MB862xx

#ifdef CONFIG_VIDEO_CORALP
#define VIDEO_FB_LITTLE_ENDIAN
#endif
#ifdef CONFIG_VIDEO_MB862xx_ACCEL
#define VIDEO_HW_RECTFILL
#define VIDEO_HW_BITBLT
#endif
#endif

/*
 * Defines for the i.MX31 driver (mx3fb.c)
 */
#if defined(CONFIG_VIDEO_MX3) || defined(CONFIG_VIDEO_IPUV3)
#define VIDEO_FB_16BPP_WORD_SWAP
#endif

/*
 * Include video_fb.h after definitions of VIDEO_HW_RECTFILL etc.
 */
#include <video_fb.h>

#include <splash.h>

/*
 * some Macros
 */
#define VIDEO_VISIBLE_COLS      (pGD->winSizeX)
#define VIDEO_VISIBLE_ROWS      (pGD->winSizeY)
#define VIDEO_PIXEL_SIZE        (pGD->gdfBytesPP)
#define VIDEO_DATA_FORMAT       (pGD->gdfIndex)
#define VIDEO_FB_ADRS           (pGD->frameAdrs)

/*
 * Console device
 */

#include <version.h>
#include <linux/types.h>
#include <stdio_dev.h>
#include <video_font.h>

#if defined(CONFIG_CMD_DATE)
#include <rtc.h>
#endif

#if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
#include <watchdog.h>
#include <bmp_layout.h>
#include <splash.h>
#endif

#if !defined(CONFIG_VIDEO_SW_CURSOR)
/* no Cursor defined */
#define CURSOR_ON
#define CURSOR_OFF
#define CURSOR_SET
#endif

#if defined(CONFIG_VIDEO_SW_CURSOR)
void console_cursor(int state);

#define CURSOR_ON  console_cursor(1)
#define CURSOR_OFF console_cursor(0)
#define CURSOR_SET video_set_cursor()
#endif /* CONFIG_VIDEO_SW_CURSOR */

#ifdef  CONFIG_VIDEO_LOGO
#ifdef  CONFIG_VIDEO_BMP_LOGO
#include <bmp_logo.h>
#include <bmp_logo_data.h>
#define VIDEO_LOGO_WIDTH        BMP_LOGO_WIDTH
#define VIDEO_LOGO_HEIGHT       BMP_LOGO_HEIGHT
#define VIDEO_LOGO_LUT_OFFSET   BMP_LOGO_OFFSET
#define VIDEO_LOGO_COLORS       BMP_LOGO_COLORS

#else  /* CONFIG_VIDEO_BMP_LOGO */
#define LINUX_LOGO_WIDTH        80
#define LINUX_LOGO_HEIGHT       80
#define LINUX_LOGO_COLORS       214
#define LINUX_LOGO_LUT_OFFSET   0x20
#define __initdata
#include <linux_logo.h>
#define VIDEO_LOGO_WIDTH        LINUX_LOGO_WIDTH
#define VIDEO_LOGO_HEIGHT       LINUX_LOGO_HEIGHT
#define VIDEO_LOGO_LUT_OFFSET   LINUX_LOGO_LUT_OFFSET
#define VIDEO_LOGO_COLORS       LINUX_LOGO_COLORS
#endif /* CONFIG_VIDEO_BMP_LOGO */
#define VIDEO_INFO_X            (VIDEO_LOGO_WIDTH)
#define VIDEO_INFO_Y            (VIDEO_FONT_HEIGHT/2)
#else  /* CONFIG_VIDEO_LOGO */
#define VIDEO_LOGO_WIDTH        0
#define VIDEO_LOGO_HEIGHT       0
#endif /* CONFIG_VIDEO_LOGO */

#define VIDEO_COLS              VIDEO_VISIBLE_COLS
#define VIDEO_ROWS              VIDEO_VISIBLE_ROWS
#ifndef VIDEO_LINE_LEN
#define VIDEO_LINE_LEN          (VIDEO_COLS * VIDEO_PIXEL_SIZE)
#endif
#define VIDEO_SIZE              (VIDEO_ROWS * VIDEO_LINE_LEN)
#define VIDEO_BURST_LEN         (VIDEO_COLS/8)

#ifdef  CONFIG_VIDEO_LOGO
#define CONSOLE_ROWS            ((VIDEO_ROWS - video_logo_height) / VIDEO_FONT_HEIGHT)
#else
#define CONSOLE_ROWS            (VIDEO_ROWS / VIDEO_FONT_HEIGHT)
#endif

#define CONSOLE_COLS            (VIDEO_COLS / VIDEO_FONT_WIDTH)
#define CONSOLE_ROW_SIZE        (VIDEO_FONT_HEIGHT * VIDEO_LINE_LEN)
#define CONSOLE_ROW_FIRST       (video_console_address)
#define CONSOLE_ROW_SECOND      (video_console_address + CONSOLE_ROW_SIZE)
#define CONSOLE_ROW_LAST        (video_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE)
#define CONSOLE_SIZE            (CONSOLE_ROW_SIZE * CONSOLE_ROWS)

/* By default we scroll by a single line */
#ifndef CONFIG_CONSOLE_SCROLL_LINES
#define CONFIG_CONSOLE_SCROLL_LINES 1
#endif

/* Macros */
#ifdef  VIDEO_FB_LITTLE_ENDIAN
#define SWAP16(x)               ((((x) & 0x00ff) << 8) | \
                                  ((x) >> 8) \
                                )
#define SWAP32(x)               ((((x) & 0x000000ff) << 24) | \
                                 (((x) & 0x0000ff00) <<  8) | \
                                 (((x) & 0x00ff0000) >>  8) | \
                                 (((x) & 0xff000000) >> 24)   \
                                )
#define SHORTSWAP32(x)          ((((x) & 0x000000ff) <<  8) | \
                                 (((x) & 0x0000ff00) >>  8) | \
                                 (((x) & 0x00ff0000) <<  8) | \
                                 (((x) & 0xff000000) >>  8)   \
                                )
#else
#define SWAP16(x)               (x)
#define SWAP32(x)               (x)
#if defined(VIDEO_FB_16BPP_WORD_SWAP)
#define SHORTSWAP32(x)          (((x) >> 16) | ((x) << 16))
#else
#define SHORTSWAP32(x)          (x)
#endif
#endif

DECLARE_GLOBAL_DATA_PTR;

/* Locals */
static GraphicDevice *pGD;      /* Pointer to Graphic array */

static void *video_fb_address;  /* frame buffer address */
static void *video_console_address;     /* console buffer start address */

static int video_logo_height = VIDEO_LOGO_HEIGHT;

static int __maybe_unused cursor_state;
static int __maybe_unused old_col;
static int __maybe_unused old_row;

static int console_col;         /* cursor col */
static int console_row;         /* cursor row */

static u32 eorx, fgx, bgx;      /* color pats */

static int cfb_do_flush_cache;

#ifdef CONFIG_CFB_CONSOLE_ANSI
static char ansi_buf[10];
static int ansi_buf_size;
static int ansi_colors_need_revert;
static int ansi_cursor_hidden;
#endif

static const int video_font_draw_table8[] = {
        0x00000000, 0x000000ff, 0x0000ff00, 0x0000ffff,
        0x00ff0000, 0x00ff00ff, 0x00ffff00, 0x00ffffff,
        0xff000000, 0xff0000ff, 0xff00ff00, 0xff00ffff,
        0xffff0000, 0xffff00ff, 0xffffff00, 0xffffffff
};

static const int video_font_draw_table15[] = {
        0x00000000, 0x00007fff, 0x7fff0000, 0x7fff7fff
};

static const int video_font_draw_table16[] = {
        0x00000000, 0x0000ffff, 0xffff0000, 0xffffffff
};

static const int video_font_draw_table24[16][3] = {
        {0x00000000, 0x00000000, 0x00000000},
        {0x00000000, 0x00000000, 0x00ffffff},
        {0x00000000, 0x0000ffff, 0xff000000},
        {0x00000000, 0x0000ffff, 0xffffffff},
        {0x000000ff, 0xffff0000, 0x00000000},
        {0x000000ff, 0xffff0000, 0x00ffffff},
        {0x000000ff, 0xffffffff, 0xff000000},
        {0x000000ff, 0xffffffff, 0xffffffff},
        {0xffffff00, 0x00000000, 0x00000000},
        {0xffffff00, 0x00000000, 0x00ffffff},
        {0xffffff00, 0x0000ffff, 0xff000000},
        {0xffffff00, 0x0000ffff, 0xffffffff},
        {0xffffffff, 0xffff0000, 0x00000000},
        {0xffffffff, 0xffff0000, 0x00ffffff},
        {0xffffffff, 0xffffffff, 0xff000000},
        {0xffffffff, 0xffffffff, 0xffffffff}
};

static const int video_font_draw_table32[16][4] = {
        {0x00000000, 0x00000000, 0x00000000, 0x00000000},
        {0x00000000, 0x00000000, 0x00000000, 0x00ffffff},
        {0x00000000, 0x00000000, 0x00ffffff, 0x00000000},
        {0x00000000, 0x00000000, 0x00ffffff, 0x00ffffff},
        {0x00000000, 0x00ffffff, 0x00000000, 0x00000000},
        {0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff},
        {0x00000000, 0x00ffffff, 0x00ffffff, 0x00000000},
        {0x00000000, 0x00ffffff, 0x00ffffff, 0x00ffffff},
        {0x00ffffff, 0x00000000, 0x00000000, 0x00000000},
        {0x00ffffff, 0x00000000, 0x00000000, 0x00ffffff},
        {0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000},
        {0x00ffffff, 0x00000000, 0x00ffffff, 0x00ffffff},
        {0x00ffffff, 0x00ffffff, 0x00000000, 0x00000000},
        {0x00ffffff, 0x00ffffff, 0x00000000, 0x00ffffff},
        {0x00ffffff, 0x00ffffff, 0x00ffffff, 0x00000000},
        {0x00ffffff, 0x00ffffff, 0x00ffffff, 0x00ffffff}
};

/*
 * Implement a weak default function for boards that optionally
 * need to skip the cfb initialization.
 */
__weak int board_cfb_skip(void)
{
        /* As default, don't skip cfb init */
        return 0;
}

static void video_drawchars(int xx, int yy, unsigned char *s, int count)
{
        u8 *cdat, *dest, *dest0;
        int rows, offset, c;

        offset = yy * VIDEO_LINE_LEN + xx * VIDEO_PIXEL_SIZE;
        dest0 = video_fb_address + offset;

        switch (VIDEO_DATA_FORMAT) {
        case GDF__8BIT_INDEX:
        case GDF__8BIT_332RGB:
                while (count--) {
                        c = *s;
                        cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
                        for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
                             rows--; dest += VIDEO_LINE_LEN) {
                                u8 bits = *cdat++;

                                ((u32 *) dest)[0] =
                                        (video_font_draw_table8[bits >> 4] &
                                         eorx) ^ bgx;

                                if (VIDEO_FONT_WIDTH == 4)
                                        continue;

                                ((u32 *) dest)[1] =
                                        (video_font_draw_table8[bits & 15] &
                                         eorx) ^ bgx;
                        }
                        dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
                        s++;
                }
                break;

        case GDF_15BIT_555RGB:
                while (count--) {
                        c = *s;
                        cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
                        for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
                             rows--; dest += VIDEO_LINE_LEN) {
                                u8 bits = *cdat++;

                                ((u32 *) dest)[0] =
                                        SHORTSWAP32((video_font_draw_table15
                                                     [bits >> 6] & eorx) ^
                                                    bgx);
                                ((u32 *) dest)[1] =
                                        SHORTSWAP32((video_font_draw_table15
                                                     [bits >> 4 & 3] & eorx) ^
                                                    bgx);

                                if (VIDEO_FONT_WIDTH == 4)
                                        continue;

                                ((u32 *) dest)[2] =
                                        SHORTSWAP32((video_font_draw_table15
                                                     [bits >> 2 & 3] & eorx) ^
                                                    bgx);
                                ((u32 *) dest)[3] =
                                        SHORTSWAP32((video_font_draw_table15
                                                     [bits & 3] & eorx) ^
                                                    bgx);
                        }
                        dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
                        s++;
                }
                break;

        case GDF_16BIT_565RGB:
                while (count--) {
                        c = *s;
                        cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
                        for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
                             rows--; dest += VIDEO_LINE_LEN) {
                                u8 bits = *cdat++;

                                ((u32 *) dest)[0] =
                                        SHORTSWAP32((video_font_draw_table16
                                                     [bits >> 6] & eorx) ^
                                                    bgx);
                                ((u32 *) dest)[1] =
                                        SHORTSWAP32((video_font_draw_table16
                                                     [bits >> 4 & 3] & eorx) ^
                                                    bgx);

                                if (VIDEO_FONT_WIDTH == 4)
                                        continue;

                                ((u32 *) dest)[2] =
                                        SHORTSWAP32((video_font_draw_table16
                                                     [bits >> 2 & 3] & eorx) ^
                                                    bgx);
                                ((u32 *) dest)[3] =
                                        SHORTSWAP32((video_font_draw_table16
                                                     [bits & 3] & eorx) ^
                                                    bgx);
                        }
                        dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
                        s++;
                }
                break;

        case GDF_32BIT_X888RGB:
                while (count--) {
                        c = *s;
                        cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
                        for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
                             rows--; dest += VIDEO_LINE_LEN) {
                                u8 bits = *cdat++;

                                ((u32 *) dest)[0] =
                                        SWAP32((video_font_draw_table32
                                                [bits >> 4][0] & eorx) ^ bgx);
                                ((u32 *) dest)[1] =
                                        SWAP32((video_font_draw_table32
                                                [bits >> 4][1] & eorx) ^ bgx);
                                ((u32 *) dest)[2] =
                                        SWAP32((video_font_draw_table32
                                                [bits >> 4][2] & eorx) ^ bgx);
                                ((u32 *) dest)[3] =
                                        SWAP32((video_font_draw_table32
                                                [bits >> 4][3] & eorx) ^ bgx);


                                if (VIDEO_FONT_WIDTH == 4)
                                        continue;

                                ((u32 *) dest)[4] =
                                        SWAP32((video_font_draw_table32
                                                [bits & 15][0] & eorx) ^ bgx);
                                ((u32 *) dest)[5] =
                                        SWAP32((video_font_draw_table32
                                                [bits & 15][1] & eorx) ^ bgx);
                                ((u32 *) dest)[6] =
                                        SWAP32((video_font_draw_table32
                                                [bits & 15][2] & eorx) ^ bgx);
                                ((u32 *) dest)[7] =
                                        SWAP32((video_font_draw_table32
                                                [bits & 15][3] & eorx) ^ bgx);
                        }
                        dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
                        s++;
                }
                break;

        case GDF_24BIT_888RGB:
                while (count--) {
                        c = *s;
                        cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
                        for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
                             rows--; dest += VIDEO_LINE_LEN) {
                                u8 bits = *cdat++;

                                ((u32 *) dest)[0] =
                                        (video_font_draw_table24[bits >> 4][0]
                                         & eorx) ^ bgx;
                                ((u32 *) dest)[1] =
                                        (video_font_draw_table24[bits >> 4][1]
                                         & eorx) ^ bgx;
                                ((u32 *) dest)[2] =
                                        (video_font_draw_table24[bits >> 4][2]
                                         & eorx) ^ bgx;

                                if (VIDEO_FONT_WIDTH == 4)
                                        continue;

                                ((u32 *) dest)[3] =
                                        (video_font_draw_table24[bits & 15][0]
                                         & eorx) ^ bgx;
                                ((u32 *) dest)[4] =
                                        (video_font_draw_table24[bits & 15][1]
                                         & eorx) ^ bgx;
                                ((u32 *) dest)[5] =
                                        (video_font_draw_table24[bits & 15][2]
                                         & eorx) ^ bgx;
                        }
                        dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
                        s++;
                }
                break;
        }
}

static inline void video_drawstring(int xx, int yy, unsigned char *s)
{
        video_drawchars(xx, yy, s, strlen((char *) s));
}

static void video_putchar(int xx, int yy, unsigned char c)
{
        video_drawchars(xx, yy + video_logo_height, &c, 1);
}

#if defined(CONFIG_VIDEO_SW_CURSOR)
static void video_set_cursor(void)
{
        if (cursor_state)
                console_cursor(0);
        console_cursor(1);
}

static void video_invertchar(int xx, int yy)
{
        int firstx = xx * VIDEO_PIXEL_SIZE;
        int lastx = (xx + VIDEO_FONT_WIDTH) * VIDEO_PIXEL_SIZE;
        int firsty = yy * VIDEO_LINE_LEN;
        int lasty = (yy + VIDEO_FONT_HEIGHT) * VIDEO_LINE_LEN;
        int x, y;
        for (y = firsty; y < lasty; y += VIDEO_LINE_LEN) {
                for (x = firstx; x < lastx; x++) {
                        u8 *dest = (u8 *)(video_fb_address) + x + y;
                        *dest = ~*dest;
                }
        }
}

void console_cursor(int state)
{
        if (cursor_state != state) {
                if (cursor_state) {
                        /* turn off the cursor */
                        video_invertchar(old_col * VIDEO_FONT_WIDTH,
                                         old_row * VIDEO_FONT_HEIGHT +
                                         video_logo_height);
                } else {
                        /* turn off the cursor and record where it is */
                        video_invertchar(console_col * VIDEO_FONT_WIDTH,
                                         console_row * VIDEO_FONT_HEIGHT +
                                         video_logo_height);
                        old_col = console_col;
                        old_row = console_row;
                }
                cursor_state = state;
        }
        if (cfb_do_flush_cache)
                flush_cache(VIDEO_FB_ADRS, VIDEO_SIZE);
}
#endif

#ifndef VIDEO_HW_RECTFILL
static void memsetl(int *p, int c, int v)
{
        while (c--)
                *(p++) = v;
}
#endif

#ifndef VIDEO_HW_BITBLT
static void memcpyl(int *d, int *s, int c)
{
        while (c--)
                *(d++) = *(s++);
}
#endif

static void console_clear_line(int line, int begin, int end)
{
#ifdef VIDEO_HW_RECTFILL
        video_hw_rectfill(VIDEO_PIXEL_SIZE,             /* bytes per pixel */
                          VIDEO_FONT_WIDTH * begin,     /* dest pos x */
                          video_logo_height +
                          VIDEO_FONT_HEIGHT * line,     /* dest pos y */
                          VIDEO_FONT_WIDTH * (end - begin + 1), /* fr. width */
                          VIDEO_FONT_HEIGHT,            /* frame height */
                          bgx                           /* fill color */
                );
#else
        if (begin == 0 && (end + 1) == CONSOLE_COLS) {
                memsetl(CONSOLE_ROW_FIRST +
                        CONSOLE_ROW_SIZE * line,        /* offset of row */
                        CONSOLE_ROW_SIZE >> 2,          /* length of row */
                        bgx                             /* fill color */
                );
        } else {
                void *offset;
                int i, size;

                offset = CONSOLE_ROW_FIRST +
                         CONSOLE_ROW_SIZE * line +      /* offset of row */
                         VIDEO_FONT_WIDTH *
                         VIDEO_PIXEL_SIZE * begin;      /* offset of col */
                size = VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE * (end - begin + 1);
                size >>= 2; /* length to end for memsetl() */
                /* fill at col offset of i'th line using bgx as fill color */
                for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
                        memsetl(offset + i * VIDEO_LINE_LEN, size, bgx);
        }
#endif
}

static void console_scrollup(void)
{
        const int rows = CONFIG_CONSOLE_SCROLL_LINES;
        int i;

        /* copy up rows ignoring the first one */

#ifdef VIDEO_HW_BITBLT
        video_hw_bitblt(VIDEO_PIXEL_SIZE,       /* bytes per pixel */
                        0,                      /* source pos x */
                        video_logo_height +
                                VIDEO_FONT_HEIGHT * rows, /* source pos y */
                        0,                      /* dest pos x */
                        video_logo_height,      /* dest pos y */
                        VIDEO_VISIBLE_COLS,     /* frame width */
                        VIDEO_VISIBLE_ROWS
                        - video_logo_height
                        - VIDEO_FONT_HEIGHT * rows      /* frame height */
                );
#else
        memcpyl(CONSOLE_ROW_FIRST, CONSOLE_ROW_FIRST + rows * CONSOLE_ROW_SIZE,
                (CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows) >> 2);
#endif
        /* clear the last one */
        for (i = 1; i <= rows; i++)
                console_clear_line(CONSOLE_ROWS - i, 0, CONSOLE_COLS - 1);

        /* Decrement row number */
        console_row -= rows;
}

static void console_back(void)
{
        console_col--;

        if (console_col < 0) {
                console_col = CONSOLE_COLS - 1;
                console_row--;
                if (console_row < 0)
                        console_row = 0;
        }
}

#ifdef CONFIG_CFB_CONSOLE_ANSI

static void console_clear(void)
{
#ifdef VIDEO_HW_RECTFILL
        video_hw_rectfill(VIDEO_PIXEL_SIZE,     /* bytes per pixel */
                          0,                    /* dest pos x */
                          video_logo_height,    /* dest pos y */
                          VIDEO_VISIBLE_COLS,   /* frame width */
                          VIDEO_VISIBLE_ROWS,   /* frame height */
                          bgx                   /* fill color */
        );
#else
        memsetl(CONSOLE_ROW_FIRST, CONSOLE_SIZE, bgx);
#endif
}

static void console_cursor_fix(void)
{
        if (console_row < 0)
                console_row = 0;
        if (console_row >= CONSOLE_ROWS)
                console_row = CONSOLE_ROWS - 1;
        if (console_col < 0)
                console_col = 0;
        if (console_col >= CONSOLE_COLS)
                console_col = CONSOLE_COLS - 1;
}

static void console_cursor_up(int n)
{
        console_row -= n;
        console_cursor_fix();
}

static void console_cursor_down(int n)
{
        console_row += n;
        console_cursor_fix();
}

static void console_cursor_left(int n)
{
        console_col -= n;
        console_cursor_fix();
}

static void console_cursor_right(int n)
{
        console_col += n;
        console_cursor_fix();
}

static void console_cursor_set_position(int row, int col)
{
        if (console_row != -1)
                console_row = row;
        if (console_col != -1)
                console_col = col;
        console_cursor_fix();
}

static void console_previousline(int n)
{
        /* FIXME: also scroll terminal ? */
        console_row -= n;
        console_cursor_fix();
}

static void console_swap_colors(void)
{
        eorx = fgx;
        fgx = bgx;
        bgx = eorx;
        eorx = fgx ^ bgx;
}

static inline int console_cursor_is_visible(void)
{
        return !ansi_cursor_hidden;
}
#else
static inline int console_cursor_is_visible(void)
{
        return 1;
}
#endif

static void console_newline(int n)
{
        console_row += n;
        console_col = 0;

        /* Check if we need to scroll the terminal */
        if (console_row >= CONSOLE_ROWS) {
                /* Scroll everything up */
                console_scrollup();
        }
}

static void console_cr(void)
{
        console_col = 0;
}

static void parse_putc(const char c)
{
        static int nl = 1;

        if (console_cursor_is_visible())
                CURSOR_OFF;

        switch (c) {
        case 13:                /* back to first column */
                console_cr();
                break;

        case '\n':              /* next line */
                if (console_col || (!console_col && nl))
                        console_newline(1);
                nl = 1;
                break;

        case 9:         /* tab 8 */
                console_col |= 0x0008;
                console_col &= ~0x0007;

                if (console_col >= CONSOLE_COLS)
                        console_newline(1);
                break;

        case 8:         /* backspace */
                console_back();
                break;

        case 7:         /* bell */
                break;  /* ignored */

        default:                /* draw the char */
                video_putchar(console_col * VIDEO_FONT_WIDTH,
                              console_row * VIDEO_FONT_HEIGHT, c);
                console_col++;

                /* check for newline */
                if (console_col >= CONSOLE_COLS) {
                        console_newline(1);
                        nl = 0;
                }
        }

        if (console_cursor_is_visible())
                CURSOR_SET;
}

static void cfb_video_putc(struct stdio_dev *dev, const char c)
{
#ifdef CONFIG_CFB_CONSOLE_ANSI
        int i;

        if (c == 27) {
                for (i = 0; i < ansi_buf_size; ++i)
                        parse_putc(ansi_buf[i]);
                ansi_buf[0] = 27;
                ansi_buf_size = 1;
                return;
        }

        if (ansi_buf_size > 0) {
                /*
                 * 0 - ESC
                 * 1 - [
                 * 2 - num1
                 * 3 - ..
                 * 4 - ;
                 * 5 - num2
                 * 6 - ..
                 * - cchar
                 */
                int next = 0;

                int flush = 0;
                int fail = 0;

                int num1 = 0;
                int num2 = 0;
                int cchar = 0;

                ansi_buf[ansi_buf_size++] = c;

                if (ansi_buf_size >= sizeof(ansi_buf))
                        fail = 1;

                for (i = 0; i < ansi_buf_size; ++i) {
                        if (fail)
                                break;

                        switch (next) {
                        case 0:
                                if (ansi_buf[i] == 27)
                                        next = 1;
                                else
                                        fail = 1;
                                break;

                        case 1:
                                if (ansi_buf[i] == '[')
                                        next = 2;
                                else
                                        fail = 1;
                                break;

                        case 2:
                                if (ansi_buf[i] >= '0' && ansi_buf[i] <= '9') {
                                        num1 = ansi_buf[i]-'0';
                                        next = 3;
                                } else if (ansi_buf[i] != '?') {
                                        --i;
                                        num1 = 1;
                                        next = 4;
                                }
                                break;

                        case 3:
                                if (ansi_buf[i] >= '0' && ansi_buf[i] <= '9') {
                                        num1 *= 10;
                                        num1 += ansi_buf[i]-'0';
                                } else {
                                        --i;
                                        next = 4;
                                }
                                break;

                        case 4:
                                if (ansi_buf[i] != ';') {
                                        --i;
                                        next = 7;
                                } else
                                        next = 5;
                                break;

                        case 5:
                                if (ansi_buf[i] >= '0' && ansi_buf[i] <= '9') {
                                        num2 = ansi_buf[i]-'0';
                                        next = 6;
                                } else
                                        fail = 1;
                                break;

                        case 6:
                                if (ansi_buf[i] >= '0' && ansi_buf[i] <= '9') {
                                        num2 *= 10;
                                        num2 += ansi_buf[i]-'0';
                                } else {
                                        --i;
                                        next = 7;
                                }
                                break;

                        case 7:
                                if ((ansi_buf[i] >= 'A' && ansi_buf[i] <= 'H')
                                        || ansi_buf[i] == 'J'
                                        || ansi_buf[i] == 'K'
                                        || ansi_buf[i] == 'h'
                                        || ansi_buf[i] == 'l'
                                        || ansi_buf[i] == 'm') {
                                        cchar = ansi_buf[i];
                                        flush = 1;
                                } else
                                        fail = 1;
                                break;
                        }
                }

                if (fail) {
                        for (i = 0; i < ansi_buf_size; ++i)
                                parse_putc(ansi_buf[i]);
                        ansi_buf_size = 0;
                        return;
                }

                if (flush) {
                        if (!ansi_cursor_hidden)
                                CURSOR_OFF;
                        ansi_buf_size = 0;
                        switch (cchar) {
                        case 'A':
                                /* move cursor num1 rows up */
                                console_cursor_up(num1);
                                break;
                        case 'B':
                                /* move cursor num1 rows down */
                                console_cursor_down(num1);
                                break;
                        case 'C':
                                /* move cursor num1 columns forward */
                                console_cursor_right(num1);
                                break;
                        case 'D':
                                /* move cursor num1 columns back */
                                console_cursor_left(num1);
                                break;
                        case 'E':
                                /* move cursor num1 rows up at begin of row */
                                console_previousline(num1);
                                break;
                        case 'F':
                                /* move cursor num1 rows down at begin of row */
                                console_newline(num1);
                                break;
                        case 'G':
                                /* move cursor to column num1 */
                                console_cursor_set_position(-1, num1-1);
                                break;
                        case 'H':
                                /* move cursor to row num1, column num2 */
                                console_cursor_set_position(num1-1, num2-1);
                                break;
                        case 'J':
                                /* clear console and move cursor to 0, 0 */
                                console_clear();
                                console_cursor_set_position(0, 0);
                                break;
                        case 'K':
                                /* clear line */
                                if (num1 == 0)
                                        console_clear_line(console_row,
                                                        console_col,
                                                        CONSOLE_COLS-1);
                                else if (num1 == 1)
                                        console_clear_line(console_row,
                                                        0, console_col);
                                else
                                        console_clear_line(console_row,
                                                        0, CONSOLE_COLS-1);
                                break;
                        case 'h':
                                ansi_cursor_hidden = 0;
                                break;

                        case 'l':
                                ansi_cursor_hidden = 1;
                                break;
                        case 'm':
                                if (num1 == 0) { /* reset swapped colors */
                                        if (ansi_colors_need_revert) {
                                                console_swap_colors();
                                                ansi_colors_need_revert = 0;
                                        }
                                } else if (num1 == 7) { /* once swap colors */
                                        if (!ansi_colors_need_revert) {
                                                console_swap_colors();
                                                ansi_colors_need_revert = 1;
                                        }
                                }
                                break;
                        }
                        if (!ansi_cursor_hidden)
                                CURSOR_SET;
                }
        } else {
                parse_putc(c);
        }
#else
        parse_putc(c);
#endif
        if (cfb_do_flush_cache)
                flush_cache(VIDEO_FB_ADRS, VIDEO_SIZE);
}

static void cfb_video_puts(struct stdio_dev *dev, const char *s)
{
        int flush = cfb_do_flush_cache;
        int count = strlen(s);

        /* temporarily disable cache flush */
        cfb_do_flush_cache = 0;

        while (count--)
                cfb_video_putc(dev, *s++);

        if (flush) {
                cfb_do_flush_cache = flush;
                flush_cache(VIDEO_FB_ADRS, VIDEO_SIZE);
        }
}

/*
 * Do not enforce drivers (or board code) to provide empty
 * video_set_lut() if they do not support 8 bpp format.
 * Implement weak default function instead.
 */
__weak void video_set_lut(unsigned int index, unsigned char r,
                     unsigned char g, unsigned char b)
{
}

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

#define FILL_8BIT_332RGB(r,g,b) {                       \
        *fb = ((r>>5)<<5) | ((g>>5)<<2) | (b>>6);       \
        fb ++;                                          \
}

#define FILL_15BIT_555RGB(r,g,b) {                      \
        *(unsigned short *)fb =                         \
                SWAP16((unsigned short)(((r>>3)<<10) |  \
                                        ((g>>3)<<5)  |  \
                                         (b>>3)));      \
        fb += 2;                                        \
}

#define FILL_16BIT_565RGB(r,g,b) {                      \
        *(unsigned short *)fb =                         \
                SWAP16((unsigned short)((((r)>>3)<<11)| \
                                        (((g)>>2)<<5) | \
                                         ((b)>>3)));    \
        fb += 2;                                        \
}

#define FILL_32BIT_X888RGB(r,g,b) {                     \
        *(u32 *)fb =                            \
                SWAP32((unsigned int)(((r<<16) |        \
                                        (g<<8)  |       \
                                         b)));          \
        fb += 4;                                        \
}

#ifdef VIDEO_FB_LITTLE_ENDIAN
#define FILL_24BIT_888RGB(r,g,b) {                      \
        fb[0] = b;                                      \
        fb[1] = g;                                      \
        fb[2] = r;                                      \
        fb += 3;                                        \
}
#else
#define FILL_24BIT_888RGB(r,g,b) {                      \
        fb[0] = r;                                      \
        fb[1] = g;                                      \
        fb[2] = b;                                      \
        fb += 3;                                        \
}
#endif

#if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
static inline void fill_555rgb_pswap(uchar *fb, int x, u8 r, u8 g, u8 b)
{
        ushort *dst = (ushort *) fb;
        ushort color = (ushort) (((r >> 3) << 10) |
                                 ((g >> 3) <<  5) |
                                  (b >> 3));
        if (x & 1)
                *(--dst) = color;
        else
                *(++dst) = color;
}
#endif

/*
 * RLE8 bitmap support
 */

#ifdef CONFIG_VIDEO_BMP_RLE8
/* Pre-calculated color table entry */
struct palette {
        union {
                unsigned short w;       /* word */
                unsigned int dw;        /* double word */
        } ce;                           /* color entry */
};

/*
 * Helper to draw encoded/unencoded run.
 */
static void draw_bitmap(uchar **fb, uchar *bm, struct palette *p,
                        int cnt, int enc)
{
        ulong addr = (ulong) *fb;
        int *off;
        int enc_off = 1;
        int i;

        /*
         * Setup offset of the color index in the bitmap.
         * Color index of encoded run is at offset 1.
         */
        off = enc ? &enc_off : &i;

        switch (VIDEO_DATA_FORMAT) {
        case GDF__8BIT_INDEX:
                for (i = 0; i < cnt; i++)
                        *(unsigned char *) addr++ = bm[*off];
                break;
        case GDF_15BIT_555RGB:
        case GDF_16BIT_565RGB:
                /* differences handled while pre-calculating palette */
                for (i = 0; i < cnt; i++) {
                        *(unsigned short *) addr = p[bm[*off]].ce.w;
                        addr += 2;
                }
                break;
        case GDF_32BIT_X888RGB:
                for (i = 0; i < cnt; i++) {
                        *(u32 *) addr = p[bm[*off]].ce.dw;
                        addr += 4;
                }
                break;
        }
        *fb = (uchar *) addr;   /* return modified address */
}

static int display_rle8_bitmap(struct bmp_image *img, int xoff, int yoff,
                               int width, int height)
{
        unsigned char *bm;
        unsigned char *fbp;
        unsigned int cnt, runlen;
        int decode = 1;
        int x, y, bpp, i, ncolors;
        struct palette p[256];
        struct bmp_color_table_entry cte;
        int green_shift, red_off;
        int limit = (VIDEO_LINE_LEN / VIDEO_PIXEL_SIZE) * VIDEO_ROWS;
        int pixels = 0;

        x = 0;
        y = __le32_to_cpu(img->header.height) - 1;
        ncolors = __le32_to_cpu(img->header.colors_used);
        bpp = VIDEO_PIXEL_SIZE;
        fbp = (unsigned char *) ((unsigned int) video_fb_address +
                                 (y + yoff) * VIDEO_LINE_LEN +
                                 xoff * bpp);

        bm = (uchar *) img + __le32_to_cpu(img->header.data_offset);

        /* pre-calculate and setup palette */
        switch (VIDEO_DATA_FORMAT) {
        case GDF__8BIT_INDEX:
                for (i = 0; i < ncolors; i++) {
                        cte = img->color_table[i];
                        video_set_lut(i, cte.red, cte.green, cte.blue);
                }
                break;
        case GDF_15BIT_555RGB:
        case GDF_16BIT_565RGB:
                if (VIDEO_DATA_FORMAT == GDF_15BIT_555RGB) {
                        green_shift = 3;
                        red_off = 10;
                } else {
                        green_shift = 2;
                        red_off = 11;
                }
                for (i = 0; i < ncolors; i++) {
                        cte = img->color_table[i];
                        p[i].ce.w = SWAP16((unsigned short)
                                           (((cte.red >> 3) << red_off) |
                                            ((cte.green >> green_shift) << 5) |
                                            cte.blue >> 3));
                }
                break;
        case GDF_32BIT_X888RGB:
                for (i = 0; i < ncolors; i++) {
                        cte = img->color_table[i];
                        p[i].ce.dw = SWAP32((cte.red << 16) |
                                            (cte.green << 8) |
                                             cte.blue);
                }
                break;
        default:
                printf("RLE Bitmap unsupported in video mode 0x%x\n",
                       VIDEO_DATA_FORMAT);
                return -1;
        }

        while (decode) {
                switch (bm[0]) {
                case 0:
                        switch (bm[1]) {
                        case 0:
                                /* scan line end marker */
                                bm += 2;
                                x = 0;
                                y--;
                                fbp = (unsigned char *)
                                        ((unsigned int) video_fb_address +
                                         (y + yoff) * VIDEO_LINE_LEN +
                                         xoff * bpp);
                                continue;
                        case 1:
                                /* end of bitmap data marker */
                                decode = 0;
                                break;
                        case 2:
                                /* run offset marker */
                                x += bm[2];
                                y -= bm[3];
                                fbp = (unsigned char *)
                                        ((unsigned int) video_fb_address +
                                         (y + yoff) * VIDEO_LINE_LEN +
                                         xoff * bpp);
                                bm += 4;
                                break;
                        default:
                                /* unencoded run */
                                cnt = bm[1];
                                runlen = cnt;
                                pixels += cnt;
                                if (pixels > limit)
                                        goto error;

                                bm += 2;
                                if (y < height) {
                                        if (x >= width) {
                                                x += runlen;
                                                goto next_run;
                                        }
                                        if (x + runlen > width)
                                                cnt = width - x;
                                        draw_bitmap(&fbp, bm, p, cnt, 0);
                                        x += runlen;
                                }
next_run:
                                bm += runlen;
                                if (runlen & 1)
                                        bm++;   /* 0 padding if length is odd */
                        }
                        break;
                default:
                        /* encoded run */
                        cnt = bm[0];
                        runlen = cnt;
                        pixels += cnt;
                        if (pixels > limit)
                                goto error;

                        if (y < height) {     /* only draw into visible area */
                                if (x >= width) {
                                        x += runlen;
                                        bm += 2;
                                        continue;
                                }
                                if (x + runlen > width)
                                        cnt = width - x;
                                draw_bitmap(&fbp, bm, p, cnt, 1);
                                x += runlen;
                        }
                        bm += 2;
                        break;
                }
        }
        return 0;
error:
        printf("Error: Too much encoded pixel data, validate your bitmap\n");
        return -1;
}
#endif

/*
 * Display the BMP file located at address bmp_image.
 */
int video_display_bitmap(ulong bmp_image, int x, int y)
{
        ushort xcount, ycount;
        uchar *fb;
        struct bmp_image *bmp = (struct bmp_image *)bmp_image;
        uchar *bmap;
        ushort padded_line;
        unsigned long width, height, bpp;
        unsigned colors;
        unsigned long compression;
        struct bmp_color_table_entry cte;

#ifdef CONFIG_VIDEO_BMP_GZIP
        unsigned char *dst = NULL;
        ulong len;
#endif

        WATCHDOG_RESET();

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

#ifdef CONFIG_VIDEO_BMP_GZIP
                /*
                 * Could be a gzipped bmp image, try to decrompress...
                 */
                len = CONFIG_SYS_VIDEO_LOGO_MAX_SIZE;
                dst = malloc(CONFIG_SYS_VIDEO_LOGO_MAX_SIZE);
                if (dst == NULL) {
                        printf("Error: malloc in gunzip failed!\n");
                        return 1;
                }
                /*
                 * NB: we need to force offset of +2
                 * See doc/README.displaying-bmps
                 */
                if (gunzip(dst+2, CONFIG_SYS_VIDEO_LOGO_MAX_SIZE-2,
                           (uchar *) bmp_image,
                           &len) != 0) {
                        printf("Error: no valid bmp or bmp.gz image at %lx\n",
                               bmp_image);
                        free(dst);
                        return 1;
                }
                if (len == CONFIG_SYS_VIDEO_LOGO_MAX_SIZE) {
                        printf("Image could be truncated "
                                "(increase CONFIG_SYS_VIDEO_LOGO_MAX_SIZE)!\n");
                }

                /*
                 * Set addr to decompressed image
                 */
                bmp = (struct bmp_image *)(dst+2);

                if (!((bmp->header.signature[0] == 'B') &&
                      (bmp->header.signature[1] == 'M'))) {
                        printf("Error: no valid bmp.gz image at %lx\n",
                               bmp_image);
                        free(dst);
                        return 1;
                }
#else
                printf("Error: no valid bmp image at %lx\n", bmp_image);
                return 1;
#endif /* CONFIG_VIDEO_BMP_GZIP */
        }

        width = le32_to_cpu(bmp->header.width);
        height = le32_to_cpu(bmp->header.height);
        bpp = le16_to_cpu(bmp->header.bit_count);
        colors = le32_to_cpu(bmp->header.colors_used);
        compression = le32_to_cpu(bmp->header.compression);

        debug("Display-bmp: %ld x %ld  with %d colors\n",
              width, height, colors);

        if (compression != BMP_BI_RGB
#ifdef CONFIG_VIDEO_BMP_RLE8
            && compression != BMP_BI_RLE8
#endif
                ) {
                printf("Error: compression type %ld not supported\n",
                       compression);
#ifdef CONFIG_VIDEO_BMP_GZIP
                if (dst)
                        free(dst);
#endif
                return 1;
        }

        padded_line = (((width * bpp + 7) / 8) + 3) & ~0x3;

#ifdef CONFIG_SPLASH_SCREEN_ALIGN
        if (x == BMP_ALIGN_CENTER)
                x = max(0, (int)(VIDEO_VISIBLE_COLS - width) / 2);
        else if (x < 0)
                x = max(0, (int)(VIDEO_VISIBLE_COLS - width + x + 1));

        if (y == BMP_ALIGN_CENTER)
                y = max(0, (int)(VIDEO_VISIBLE_ROWS - height) / 2);
        else if (y < 0)
                y = max(0, (int)(VIDEO_VISIBLE_ROWS - height + y + 1));
#endif /* CONFIG_SPLASH_SCREEN_ALIGN */

        /*
         * Just ignore elements which are completely beyond screen
         * dimensions.
         */
        if ((x >= VIDEO_VISIBLE_COLS) || (y >= VIDEO_VISIBLE_ROWS))
                return 0;

        if ((x + width) > VIDEO_VISIBLE_COLS)
                width = VIDEO_VISIBLE_COLS - x;
        if ((y + height) > VIDEO_VISIBLE_ROWS)
                height = VIDEO_VISIBLE_ROWS - y;

        bmap = (uchar *) bmp + le32_to_cpu(bmp->header.data_offset);
        fb = (uchar *) (video_fb_address +
                        ((y + height - 1) * VIDEO_LINE_LEN) +
                        x * VIDEO_PIXEL_SIZE);

#ifdef CONFIG_VIDEO_BMP_RLE8
        if (compression == BMP_BI_RLE8) {
                return display_rle8_bitmap(bmp, x, y, width, height);
        }
#endif

        /* We handle only 4, 8, or 24 bpp bitmaps */
        switch (le16_to_cpu(bmp->header.bit_count)) {
        case 4:
                padded_line -= width / 2;
                ycount = height;

                switch (VIDEO_DATA_FORMAT) {
                case GDF_32BIT_X888RGB:
                        while (ycount--) {
                                WATCHDOG_RESET();
                                /*
                                 * Don't assume that 'width' is an
                                 * even number
                                 */
                                for (xcount = 0; xcount < width; xcount++) {
                                        uchar idx;

                                        if (xcount & 1) {
                                                idx = *bmap & 0xF;
                                                bmap++;
                                        } else
                                                idx = *bmap >> 4;
                                        cte = bmp->color_table[idx];
                                        FILL_32BIT_X888RGB(cte.red, cte.green,
                                                           cte.blue);
                                }
                                bmap += padded_line;
                                fb -= VIDEO_LINE_LEN + width *
                                        VIDEO_PIXEL_SIZE;
                        }
                        break;
                default:
                        puts("4bpp bitmap unsupported with current "
                             "video mode\n");
                        break;
                }
                break;

        case 8:
                padded_line -= width;
                if (VIDEO_DATA_FORMAT == GDF__8BIT_INDEX) {
                        /* Copy colormap */
                        for (xcount = 0; xcount < colors; ++xcount) {
                                cte = bmp->color_table[xcount];
                                video_set_lut(xcount, cte.red, cte.green,
                                              cte.blue);
                        }
                }
                ycount = height;
                switch (VIDEO_DATA_FORMAT) {
                case GDF__8BIT_INDEX:
                        while (ycount--) {
                                WATCHDOG_RESET();
                                xcount = width;
                                while (xcount--) {
                                        *fb++ = *bmap++;
                                }
                                bmap += padded_line;
                                fb -= VIDEO_LINE_LEN + width *
                                        VIDEO_PIXEL_SIZE;
                        }
                        break;
                case GDF__8BIT_332RGB:
                        while (ycount--) {
                                WATCHDOG_RESET();
                                xcount = width;
                                while (xcount--) {
                                        cte = bmp->color_table[*bmap++];
                                        FILL_8BIT_332RGB(cte.red, cte.green,
                                                         cte.blue);
                                }
                                bmap += padded_line;
                                fb -= VIDEO_LINE_LEN + width *
                                        VIDEO_PIXEL_SIZE;
                        }
                        break;
                case GDF_15BIT_555RGB:
                        while (ycount--) {
#if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
                                int xpos = x;
#endif
                                WATCHDOG_RESET();
                                xcount = width;
                                while (xcount--) {
                                        cte = bmp->color_table[*bmap++];
#if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
                                        fill_555rgb_pswap(fb, xpos++, cte.red,
                                                          cte.green,
                                                          cte.blue);
                                        fb += 2;
#else
                                        FILL_15BIT_555RGB(cte.red, cte.green,
                                                          cte.blue);
#endif
                                }
                                bmap += padded_line;
                                fb -= VIDEO_LINE_LEN + 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_LINE_LEN + 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_LINE_LEN + 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_LINE_LEN + 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_LINE_LEN + width *
                                        VIDEO_PIXEL_SIZE;
                        }
                        break;
                case GDF_15BIT_555RGB:
                        while (ycount--) {
#if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
                                int xpos = x;
#endif
                                WATCHDOG_RESET();
                                xcount = width;
                                while (xcount--) {
#if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
                                        fill_555rgb_pswap(fb, xpos++, bmap[2],
                                                          bmap[1], bmap[0]);
                                        fb += 2;
#else
                                        FILL_15BIT_555RGB(bmap[2], bmap[1],
                                                          bmap[0]);
#endif
                                        bmap += 3;
                                }
                                bmap += padded_line;
                                fb -= VIDEO_LINE_LEN + 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_LINE_LEN + 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_LINE_LEN + 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_LINE_LEN + 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;
        }

#ifdef CONFIG_VIDEO_BMP_GZIP
        if (dst) {
                free(dst);
        }
#endif

        if (cfb_do_flush_cache)
                flush_cache(VIDEO_FB_ADRS, VIDEO_SIZE);
        return (0);
}
#endif


#ifdef CONFIG_VIDEO_LOGO
static int video_logo_xpos;
static int video_logo_ypos;

static void plot_logo_or_black(void *screen, int x, int y, int black);

static void logo_plot(void *screen, int x, int y)
{
        plot_logo_or_black(screen, x, y, 0);
}

static void logo_black(void)
{
        plot_logo_or_black(video_fb_address, video_logo_xpos, video_logo_ypos,
                        1);
}

static int do_clrlogo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
        if (argc != 1)
                return cmd_usage(cmdtp);

        logo_black();
        return 0;
}

U_BOOT_CMD(
           clrlogo, 1, 0, do_clrlogo,
           "fill the boot logo area with black",
           " "
           );

static void plot_logo_or_black(void *screen, int x, int y, int black)
{

        int xcount, i;
        int skip = VIDEO_LINE_LEN - 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;

#ifdef CONFIG_SPLASH_SCREEN_ALIGN
        if (x == BMP_ALIGN_CENTER)
                x = max(0, (int)(VIDEO_VISIBLE_COLS - VIDEO_LOGO_WIDTH) / 2);
        else if (x < 0)
                x = max(0, (int)(VIDEO_VISIBLE_COLS - VIDEO_LOGO_WIDTH + x + 1));

        if (y == BMP_ALIGN_CENTER)
                y = max(0, (int)(VIDEO_VISIBLE_ROWS - VIDEO_LOGO_HEIGHT) / 2);
        else if (y < 0)
                y = max(0, (int)(VIDEO_VISIBLE_ROWS - VIDEO_LOGO_HEIGHT + y + 1));
#endif /* CONFIG_SPLASH_SCREEN_ALIGN */

        dest = (unsigned char *)screen + y * VIDEO_LINE_LEN + x * VIDEO_PIXEL_SIZE;

#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--) {
#if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
                int xpos = x;
#endif
                xcount = VIDEO_LOGO_WIDTH;
                while (xcount--) {
                        if (black) {
                                r = 0x00;
                                g = 0x00;
                                b = 0x00;
                        } else {
                                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:
#if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
                                fill_555rgb_pswap(dest, xpos++, r, g, b);
#else
                                *(unsigned short *) dest =
                                        SWAP16((unsigned short) (
                                                        ((r >> 3) << 10) |
                                                        ((g >> 3) <<  5) |
                                                         (b >> 3)));
#endif
                                break;
                        case GDF_16BIT_565RGB:
                                *(unsigned short *) dest =
                                        SWAP16((unsigned short) (
                                                        ((r >> 3) << 11) |
                                                        ((g >> 2) <<  5) |
                                                         (b >> 3)));
                                break;
                        case GDF_32BIT_X888RGB:
                                *(u32 *) dest =
                                        SWAP32((u32) (
                                                        (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];
        __maybe_unused int y_off = 0;
        __maybe_unused ulong addr;
        __maybe_unused char *s;
        __maybe_unused int len, ret, space;

        splash_get_pos(&video_logo_xpos, &video_logo_ypos);

#ifdef CONFIG_SPLASH_SCREEN
        s = getenv("splashimage");
        if (s != NULL) {
                ret = splash_screen_prepare();
                if (ret < 0)
                        return video_fb_address;
                addr = simple_strtoul(s, NULL, 16);

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

        logo_plot(video_fb_address, video_logo_xpos, video_logo_ypos);

#ifdef CONFIG_SPLASH_SCREEN_ALIGN
        /*
         * when using splashpos for video_logo, skip any info
         * output on video console if the logo is not at 0,0
         */
        if (video_logo_xpos || video_logo_ypos) {
                /*
                 * video_logo_height is used in text and cursor offset
                 * calculations. Since the console is below the logo,
                 * we need to adjust the logo height
                 */
                if (video_logo_ypos == BMP_ALIGN_CENTER)
                        video_logo_height += max(0, (int)(VIDEO_VISIBLE_ROWS -
                                                     VIDEO_LOGO_HEIGHT) / 2);
                else if (video_logo_ypos > 0)
                        video_logo_height += video_logo_ypos;

                return video_fb_address + video_logo_height * VIDEO_LINE_LEN;
        }
#endif
        if (board_cfb_skip())
                return 0;

        sprintf(info, " %s", version_string);

#ifndef CONFIG_HIDE_LOGO_VERSION
        space = (VIDEO_LINE_LEN / 2 - VIDEO_INFO_X) / VIDEO_FONT_WIDTH;
        len = strlen(info);

        if (len > space) {
                video_drawchars(VIDEO_INFO_X, VIDEO_INFO_Y,
                                (uchar *) info, space);
                video_drawchars(VIDEO_INFO_X + VIDEO_FONT_WIDTH,
                                VIDEO_INFO_Y + VIDEO_FONT_HEIGHT,
                                (uchar *) info + space, len - space);
                y_off = 1;
        } else
                video_drawstring(VIDEO_INFO_X, VIDEO_INFO_Y, (uchar *) 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)
                                continue;

                        len = strlen(info);
                        if (len > space) {
                                video_drawchars(VIDEO_INFO_X,
                                                VIDEO_INFO_Y +
                                                (i + y_off) *
                                                        VIDEO_FONT_HEIGHT,
                                                (uchar *) info, space);
                                y_off++;
                                video_drawchars(VIDEO_INFO_X +
                                                VIDEO_FONT_WIDTH,
                                                VIDEO_INFO_Y +
                                                        (i + y_off) *
                                                        VIDEO_FONT_HEIGHT,
                                                (uchar *) info + space,
                                                len - space);
                        } else {
                                video_drawstring(VIDEO_INFO_X,
                                                 VIDEO_INFO_Y +
                                                 (i + y_off) *
                                                        VIDEO_FONT_HEIGHT,
                                                 (uchar *) info);
                        }
                }
        }
#endif
#endif

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

static int cfb_fb_is_in_dram(void)
{
        bd_t *bd = gd->bd;
#if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || \
defined(CONFIG_SANDBOX) || defined(CONFIG_X86)
        ulong start, end;
        int i;

        for (i = 0; i < CONFIG_NR_DRAM_BANKS; ++i) {
                start = bd->bi_dram[i].start;
                end = bd->bi_dram[i].start + bd->bi_dram[i].size - 1;
                if ((ulong)video_fb_address >= start &&
                    (ulong)video_fb_address < end)
                        return 1;
        }
#else
        if ((ulong)video_fb_address >= bd->bi_memstart &&
            (ulong)video_fb_address < bd->bi_memstart + bd->bi_memsize)
                return 1;
#endif
        return 0;
}

void video_clear(void)
{
        if (!video_fb_address)
                return;
#ifdef VIDEO_HW_RECTFILL
        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 */

                          bgx                   /* fill color */
        );
#else
        memsetl(video_fb_address,
                (VIDEO_VISIBLE_ROWS * VIDEO_LINE_LEN) / sizeof(int), bgx);
#endif
}

static int cfg_video_init(void)
{
        unsigned char color8;

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

        video_fb_address = (void *) VIDEO_FB_ADRS;

        cfb_do_flush_cache = cfb_fb_is_in_dram() && dcache_status();

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

        video_clear();

#ifdef CONFIG_VIDEO_LOGO
        /* Plot the logo and get start point of console */
        debug("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;

        if (cfb_do_flush_cache)
                flush_cache(VIDEO_FB_ADRS, VIDEO_SIZE);

        return 0;
}

/*
 * Implement a weak default function for boards that optionally
 * need to skip the video initialization.
 */
__weak int board_video_skip(void)
{
        /* As default, don't skip test */
        return 0;
}

int drv_video_init(void)
{
        struct stdio_dev console_dev;
        bool have_keyboard;
        bool __maybe_unused keyboard_ok = false;

        /* Check if video initialization should be skipped */
        if (board_video_skip())
                return 0;

        /* Init video chip - returns with framebuffer cleared */
        if (cfg_video_init() == -1)
                return 0;

        if (board_cfb_skip())
                return 0;

#if defined(CONFIG_VGA_AS_SINGLE_DEVICE)
        have_keyboard = false;
#elif defined(CONFIG_OF_CONTROL)
        have_keyboard = !fdtdec_get_config_bool(gd->fdt_blob,
                                                "u-boot,no-keyboard");
#else
        have_keyboard = true;
#endif
        if (have_keyboard) {
                debug("KBD: Keyboard init ...\n");
#if !defined(CONFIG_VGA_AS_SINGLE_DEVICE)
                keyboard_ok = !(VIDEO_KBD_INIT_FCT == -1);
#endif
        }

        /* Init vga device */
        memset(&console_dev, 0, sizeof(console_dev));
        strcpy(console_dev.name, "vga");
        console_dev.flags = DEV_FLAGS_OUTPUT;
        console_dev.putc = cfb_video_putc;      /* 'putc' function */
        console_dev.puts = cfb_video_puts;      /* 'puts' function */

#if !defined(CONFIG_VGA_AS_SINGLE_DEVICE)
        if (have_keyboard && keyboard_ok) {
                /* Also init console device */
                console_dev.flags |= DEV_FLAGS_INPUT;
                console_dev.tstc = VIDEO_TSTC_FCT;      /* 'tstc' function */
                console_dev.getc = VIDEO_GETC_FCT;      /* 'getc' function */
        }
#endif

        if (stdio_register(&console_dev) != 0)
                return 0;

        /* Return success */
        return 1;
}

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

int video_get_pixel_width(void)
{
        return VIDEO_VISIBLE_COLS;
}

int video_get_pixel_height(void)
{
        return VIDEO_VISIBLE_ROWS;
}

int video_get_screen_rows(void)
{
        return CONSOLE_ROWS;
}

int video_get_screen_columns(void)
{
        return CONSOLE_COLS;
}