Initial revision

1 files changed, 912 insertions, 0 deletions

diff --git a/drivers/cfb_console.c b/drivers/cfb_console.c
new file mode 100644
index 000000000..ee2fa9c84
--- /dev/null
+++ b/drivers/cfb_console.c
@@ -0,0 +1,912 @@
+/*
+ * (C) Copyright 2002 ELTEC Elektronik AG
+ * Frank Gottschling <fgottschling@eltec.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * 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 normaly goes to serial port) can be drawed.
+ *
+ * The console driver can use the standard PC keyboard interface (i8042)
+ * for character input. 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)
+
+ CONFIG_VIDEO_SMI_LYNXEM - use graphic driver for SMI 710,712,810
+ 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
+
+ CONFIG_I8042_KBD            - AT Keyboard driver for i8042
+ VIDEO_KBD_INIT_FCT          - init function for keyboard
+ VIDEO_TSTC_FCT              - keyboard_tstc function
+ VIDEO_GETC_FCT              - keyboard_getc function
+
+ CONFIG_CONSOLE_CURSOR       - on/off drawing cursor is done with delay
+                               loop in VIDEO_TSTC_FCT (i8042)
+ CFG_CONSOLE_BLINK_COUNT     - value for delay loop - blink rate
+ CONFIG_CONSOLE_TIME         - display time/date in upper right corner,
+                               needs CFG_CMD_DATE and CONFIG_CONSOLE_CURSOR
+ CONFIG_VIDEO_LOGO           - display Linux Logo in upper left corner
+ 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_VGA_AS_SINGLE_DEVICE  - If set the framebuffer device will be initialised
+                               as an output only device. The Keyboard driver
+                               will not be set-up. This may be used, if you
+                               have none or more than one Keyboard devices
+                               (USB Keyboard, AT Keyboard).
+
+CONFIG_VIDEO_SW_CURSOR:      - Draws a cursor after the last character. No
+                               blinking is provided. Uses the macros CURSOR_SET
+                               and CURSOR_OFF.
+CONFIG_VIDEO_HW_CURSOR:      - Uses the hardware cursor capability of the
+                               graphic chip. Uses the macro CURSOR_SET.
+                               ATTENTION: If booting an OS, the display driver
+                               must disable the hardware register of the graphic
+                               chip. Otherwise a blinking field is displayed
+*/
+
+#include <common.h>
+
+#ifdef CONFIG_CFB_CONSOLE
+
+/*****************************************************************************/
+/* Console device defines with SMI graphic                                   */
+/* Any other graphic must change this section                                */
+/*****************************************************************************/
+
+#ifdef  CONFIG_VIDEO_SMI_LYNXEM
+
+#define VIDEO_FB_LITTLE_ENDIAN
+#define VIDEO_HW_RECTFILL
+#define VIDEO_HW_BITBLT
+#endif
+
+/*****************************************************************************/
+/* Defines for the CT69000 driver                                            */
+/*****************************************************************************/
+#ifdef  CONFIG_VIDEO_CT69000
+
+#define VIDEO_FB_LITTLE_ENDIAN
+#define VIDEO_HW_RECTFILL
+#define VIDEO_HW_BITBLT
+#endif
+
+/*****************************************************************************/
+/* Include video_fb.h after definitions of VIDEO_HW_RECTFILL etc             */
+/*****************************************************************************/
+#include <video_fb.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 defines with i8042 keyboard controller                     */
+/* Any other keyboard controller must change this section                    */
+/*****************************************************************************/
+
+#ifdef  CONFIG_I8042_KBD
+#include <i8042.h>
+
+#define VIDEO_KBD_INIT_FCT      i8042_kbd_init()
+#define VIDEO_TSTC_FCT          i8042_tstc
+#define VIDEO_GETC_FCT          i8042_getc
+#endif
+
+/*****************************************************************************/
+/* Console device                                                            */
+/*****************************************************************************/
+
+#include <version.h>
+#include <linux/types.h>
+#include <devices.h>
+#include <video_font.h>
+#ifdef CFG_CMD_DATE
+#include <rtc.h>
+
+#endif
+
+/*****************************************************************************/
+/* Cursor definition:                                                        */
+/* CONFIG_CONSOLE_CURSOR:  Uses a timer function (see drivers/i8042.c) to    */
+/*                         let the cursor blink. Uses the macros CURSOR_OFF  */
+/*                         and CURSOR_ON.                                    */
+/* CONFIG_VIDEO_SW_CURSOR: Draws a cursor after the last character. No       */
+/*                         blinking is provided. Uses the macros CURSOR_SET  */
+/*                         and CURSOR_OFF.                                   */
+/* CONFIG_VIDEO_HW_CURSOR: Uses the hardware cursor capability of the        */
+/*                         graphic chip. Uses the macro CURSOR_SET.          */
+/*                         ATTENTION: If booting an OS, the display driver   */
+/*                         must disable the hardware register of the graphic */
+/*                         chip. Otherwise a blinking field is displayed     */
+/*****************************************************************************/
+#if !defined(CONFIG_CONSOLE_CURSOR) && \
+    !defined(CONFIG_VIDEO_SW_CURSOR) && \
+    !defined(CONFIG_VIDEO_HW_CURSOR)
+/* no Cursor defined */
+#define CURSOR_ON
+#define CURSOR_OFF
+#define CURSOR_SET
+#endif
+
+#ifdef  CONFIG_CONSOLE_CURSOR
+#ifdef  CURSOR_ON
+#error  only one of CONFIG_CONSOLE_CURSOR,CONFIG_VIDEO_SW_CURSOR,CONFIG_VIDEO_HW_CURSOR can be defined
+#endif
+void    console_cursor (int state);
+#define CURSOR_ON  console_cursor(1);
+#define CURSOR_OFF console_cursor(0);
+#define CURSOR_SET
+#ifndef CONFIG_I8042_KBD
+#warning Cursor drawing on/off needs timer function s.a. drivers/i8042.c
+#endif
+#else
+#ifdef  CONFIG_CONSOLE_TIME
+#error  CONFIG_CONSOLE_CURSOR must be defined for CONFIG_CONSOLE_TIME
+#endif
+#endif /* CONFIG_CONSOLE_CURSOR */
+
+#ifdef  CONFIG_VIDEO_SW_CURSOR
+#ifdef  CURSOR_ON
+#error  only one of CONFIG_CONSOLE_CURSOR,CONFIG_VIDEO_SW_CURSOR,CONFIG_VIDEO_HW_CURSOR can be defined
+#endif
+#define CURSOR_ON
+#define CURSOR_OFF video_putchar(console_col * VIDEO_FONT_WIDTH,\
+                                 console_row * VIDEO_FONT_HEIGHT, ' ');
+#define CURSOR_SET video_set_cursor();
+#endif /* CONFIG_VIDEO_SW_CURSOR */
+
+
+#ifdef CONFIG_VIDEO_HW_CURSOR
+#ifdef  CURSOR_ON
+#error  only one of CONFIG_CONSOLE_CURSOR,CONFIG_VIDEO_SW_CURSOR,CONFIG_VIDEO_HW_CURSOR can be defined
+#endif
+#define CURSOR_ON
+#define CURSOR_OFF
+#define CURSOR_SET video_set_hw_cursor(console_col * VIDEO_FONT_WIDTH, \
+                  (console_row * VIDEO_FONT_HEIGHT) + VIDEO_LOGO_HEIGHT);
+#endif  /* CONFIG_VIDEO_HW_CURSOR */
+
+#ifdef  CONFIG_VIDEO_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_INFO_X            (VIDEO_LOGO_WIDTH)
+#define VIDEO_INFO_Y            (VIDEO_FONT_HEIGHT/2)
+#else
+#define VIDEO_LOGO_WIDTH        0
+#define VIDEO_LOGO_HEIGHT       0
+#endif
+
+#define VIDEO_COLS              VIDEO_VISIBLE_COLS
+#define VIDEO_ROWS              VIDEO_VISIBLE_ROWS
+#define VIDEO_SIZE              (VIDEO_ROWS*VIDEO_COLS*VIDEO_PIXEL_SIZE)
+#define VIDEO_PIX_BLOCKS        (VIDEO_SIZE >> 2)
+#define VIDEO_LINE_LEN          (VIDEO_COLS*VIDEO_PIXEL_SIZE)
+#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)
+#define CONSOLE_SCROLL_SIZE     (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
+
+/* 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)
+#define SHORTSWAP32(x)   (x)
+#endif
+
+#if defined(DEBUG) || defined(DEBUG_CFB_CONSOLE)
+#define PRINTD(x)         printf(x)
+#else
+#define PRINTD(x)
+#endif
+
+
+#ifdef CONFIG_CONSOLE_EXTRA_INFO
+extern void video_get_info_str (    /* setup a board string: type, speed, etc. */
+    int line_number,        /* location to place info string beside logo */
+    char *info              /* buffer for info string */
+    );
+
+#endif
+
+/* 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 console_col = 0; /* cursor col */
+static int console_row = 0; /* cursor row */
+
+static u32 eorx, fgx, bgx;  /* color pats */
+
+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 } };
+
+
+/******************************************************************************/
+
+
+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;
+            ((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);
+            ((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);
+            ((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);
+            ((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;
+            ((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(s));
+}
+
+/*****************************************************************************/
+
+static void video_putchar(int xx, int yy, unsigned char c)
+{
+#ifdef CONFIG_VIDEO_LOGO
+    video_drawchars (xx, yy + VIDEO_LOGO_HEIGHT, &c, 1);
+#else
+    video_drawchars (xx, yy, &c, 1);
+#endif
+}
+
+/*****************************************************************************/
+#if defined(CONFIG_CONSOLE_CURSOR) || defined(CONFIG_VIDEO_SW_CURSOR)
+static void video_set_cursor(void)
+{
+    /* swap drawing colors */
+    eorx = fgx;
+    fgx  = bgx;
+    bgx  = eorx;
+    eorx = fgx ^ bgx;
+    /* draw cursor */
+    video_putchar (console_col * VIDEO_FONT_WIDTH,
+                   console_row * VIDEO_FONT_HEIGHT, ' ');
+    /* restore drawing colors */
+    eorx = fgx;
+    fgx  = bgx;
+    bgx  = eorx;
+    eorx = fgx ^ bgx;
+}
+#endif
+/*****************************************************************************/
+#ifdef CONFIG_CONSOLE_CURSOR
+void console_cursor (int state)
+{
+    static int last_state = 0;
+#ifdef CONFIG_CONSOLE_TIME
+    struct rtc_time tm;
+    char info[16];
+
+    /* time update only if cursor is on (faster scroll) */
+    if (state)
+    {
+    rtc_get (&tm);
+
+    sprintf(info, " %02d:%02d:%02d ", tm.tm_hour, tm.tm_min, tm.tm_sec);
+    video_drawstring(VIDEO_VISIBLE_COLS-10*VIDEO_FONT_WIDTH,
+             VIDEO_INFO_Y, info);
+
+    sprintf(info, "%02d.%02d.%04d", tm.tm_mday, tm.tm_mon, tm.tm_year);
+    video_drawstring(VIDEO_VISIBLE_COLS-10*VIDEO_FONT_WIDTH,
+             VIDEO_INFO_Y+1*VIDEO_FONT_HEIGHT, info);
+    }
+#endif
+
+    if (state && (last_state != state))
+    {
+        video_set_cursor();
+    }
+
+    if (!state && (last_state != state))
+    {
+        /* clear cursor */
+        video_putchar (console_col * VIDEO_FONT_WIDTH,
+                       console_row * VIDEO_FONT_HEIGHT, ' ');
+    }
+
+    last_state = state;
+}
+#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_scrollup (void)
+{
+    /* 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, /* 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 /* frame height */
+    );
+#else
+    memcpyl (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE >> 2);
+#endif
+
+    /* clear the last one */
+#ifdef VIDEO_HW_RECTFILL
+    video_hw_rectfill (
+    VIDEO_PIXEL_SIZE,     /* bytes per pixel */
+    0,                    /* dest pos x */
+    VIDEO_VISIBLE_ROWS - VIDEO_FONT_HEIGHT,  /* dest pos y */
+    VIDEO_VISIBLE_COLS,   /* frame width */
+    VIDEO_FONT_HEIGHT,    /* frame height */
+    CONSOLE_BG_COL          /* fill color */
+    );
+#else
+    memsetl (CONSOLE_ROW_LAST, CONSOLE_ROW_SIZE >> 2, CONSOLE_BG_COL);
+#endif
+}
+
+/*****************************************************************************/
+
+static void console_back (void)
+{
+    CURSOR_OFF
+    console_col--;
+
+    if (console_col < 0)
+    {
+        console_col = CONSOLE_COLS - 1;
+        console_row--;
+        if (console_row < 0)
+        console_row = 0;
+    }
+    video_putchar (console_col * VIDEO_FONT_WIDTH,
+                   console_row * VIDEO_FONT_HEIGHT, ' ');
+}
+
+/*****************************************************************************/
+
+static void console_newline (void)
+{
+    CURSOR_OFF
+    console_row++;
+    console_col = 0;
+
+    /* Check if we need to scroll the terminal */
+    if (console_row >= CONSOLE_ROWS)
+    {
+    /* Scroll everything up */
+    console_scrollup ();
+
+    /* Decrement row number */
+    console_row--;
+    }
+}
+
+/*****************************************************************************/
+
+void video_putc (const char c)
+{
+    switch (c)
+    {
+    case 13: /* ignore */
+        break;
+
+    case '\n': /* next line */
+        console_newline();
+        break;
+
+    case 9:    /* tab 8 */
+        CURSOR_OFF
+        console_col |=  0x0008;
+        console_col &= ~0x0007;
+
+        if (console_col >= CONSOLE_COLS)
+            console_newline();
+        break;
+
+    case 8:    /* backspace */
+        console_back();
+        break;
+
+    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();
+    }
+    CURSOR_SET
+}
+
+
+
+/*****************************************************************************/
+
+void video_puts (const char *s)
+{
+    int count = strlen(s);
+
+    while(count--)
+        video_putc(*s++);
+}
+
+/*****************************************************************************/
+
+#ifdef CONFIG_VIDEO_LOGO
+void logo_plot (void *screen, int width, int x, int y)
+{
+    int skip = (width - LINUX_LOGO_WIDTH) * VIDEO_PIXEL_SIZE,
+        xcount, i,
+        ycount = LINUX_LOGO_HEIGHT;
+    unsigned char
+        *source = linux_logo,
+        *dest   = (unsigned char *) screen + ((y * width * VIDEO_PIXEL_SIZE) + x),
+        r, g, b;
+
+    if (VIDEO_DATA_FORMAT == GDF__8BIT_INDEX)
+    {
+        for (i = 0; i < LINUX_LOGO_COLORS; i++)
+        {
+            r = (unsigned char)linux_logo_red  [i];
+            g = (unsigned char)linux_logo_green[i];
+            b = (unsigned char)linux_logo_blue [i];
+            video_set_lut (LINUX_LOGO_LUT_OFFSET + i, r, g, b);
+        }
+    }
+
+    while (ycount--)
+    {
+    xcount = LINUX_LOGO_WIDTH;
+    while (xcount--)
+    {
+        r = (unsigned char)linux_logo_red  [*source - LINUX_LOGO_LUT_OFFSET];
+        g = (unsigned char)linux_logo_green[*source - LINUX_LOGO_LUT_OFFSET];
+        b = (unsigned char)linux_logo_blue [*source - LINUX_LOGO_LUT_OFFSET];
+
+        switch (VIDEO_DATA_FORMAT)
+        {
+        case GDF__8BIT_INDEX:
+            *dest = *source;
+            break;
+        case GDF__8BIT_332RGB:
+            *dest = ((r>>5)<<5) | ((g>>5)<<2) | (b>>6);
+            break;
+        case GDF_15BIT_555RGB:
+            *(unsigned short *)dest =
+            SWAP16((unsigned short)(((r>>3)<<10) | ((g>>3)<<5) | (b>>3)));
+            break;
+        case GDF_16BIT_565RGB:
+            *(unsigned short *)dest =
+            SWAP16((unsigned short)(((r>>3)<<11) | ((g>>2)<<5) | (b>>3)));
+            break;
+        case GDF_32BIT_X888RGB:
+            *(unsigned long  *)dest =
+            SWAP32((unsigned long)((r<<16) | (g<<8) | b));
+            break;
+        case GDF_24BIT_888RGB:
+#ifdef VIDEO_FB_LITTLE_ENDIAN
+            dest[0] = b;
+            dest[1] = g;
+            dest[2] = r;
+#else
+            dest[0] = r;
+            dest[1] = g;
+            dest[2] = b;
+#endif
+            break;
+        }
+        source++;
+        dest += VIDEO_PIXEL_SIZE;
+    }
+    dest += skip;
+    }
+}
+
+
+/*****************************************************************************/
+
+static void *video_logo (void)
+{
+    char info[128];
+
+    logo_plot (video_fb_address, VIDEO_COLS, 0, 0);
+
+    sprintf(info, " %s (%s - %s)", U_BOOT_VERSION, __DATE__, __TIME__);
+    video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y, info);
+
+#ifdef CONFIG_CONSOLE_EXTRA_INFO
+    {
+    int i, n = ((VIDEO_LOGO_HEIGHT-VIDEO_FONT_HEIGHT)/VIDEO_FONT_HEIGHT);
+
+    for (i = 1; i < n; i++)
+    {
+        video_get_info_str (i, info);
+        if (*info)
+        video_drawstring (VIDEO_INFO_X,
+                          VIDEO_INFO_Y + i*VIDEO_FONT_HEIGHT, info);
+    }
+    }
+#endif
+
+    return (video_fb_address + VIDEO_LOGO_HEIGHT * VIDEO_LINE_LEN);
+}
+#endif
+
+
+/*****************************************************************************/
+
+static int video_init(void)
+{
+    unsigned char color8;
+
+    if ((pGD=video_hw_init()) == NULL)
+        return -1;
+
+    video_fb_address = (void*)VIDEO_FB_ADRS;
+#ifdef CONFIG_VIDEO_HW_CURSOR
+    video_init_hw_cursor(VIDEO_FONT_WIDTH, VIDEO_FONT_HEIGHT);
+#endif
+
+    /* Init drawing pats */
+    switch (VIDEO_DATA_FORMAT)
+    {
+    case GDF__8BIT_INDEX:
+        video_set_lut (0x01, CONSOLE_FG_COL, CONSOLE_FG_COL, CONSOLE_FG_COL);
+        video_set_lut (0x00, CONSOLE_BG_COL, CONSOLE_BG_COL, CONSOLE_BG_COL);
+        fgx = 0x01010101;
+        bgx = 0x00000000;
+        break;
+    case GDF__8BIT_332RGB:
+        color8 = ((CONSOLE_FG_COL & 0xe0) | ((CONSOLE_FG_COL>>3) & 0x1c) | CONSOLE_FG_COL>>6);
+        fgx = (color8<<24) | (color8<<16) | (color8<<8) | color8;
+        color8 = ((CONSOLE_BG_COL & 0xe0) | ((CONSOLE_BG_COL>>3) & 0x1c) | CONSOLE_BG_COL>>6);
+        bgx = (color8<<24) | (color8<<16) | (color8<<8) | color8;
+        break;
+    case GDF_15BIT_555RGB:
+        fgx = (((CONSOLE_FG_COL>>3)<<26) | ((CONSOLE_FG_COL>>3)<<21) | ((CONSOLE_FG_COL>>3)<<16) |
+           ((CONSOLE_FG_COL>>3)<<10) | ((CONSOLE_FG_COL>>3)<<5)  |  (CONSOLE_FG_COL>>3));
+        bgx = (((CONSOLE_BG_COL>>3)<<26) | ((CONSOLE_BG_COL>>3)<<21) | ((CONSOLE_BG_COL>>3)<<16) |
+           ((CONSOLE_BG_COL>>3)<<10) | ((CONSOLE_BG_COL>>3)<<5)  |  (CONSOLE_BG_COL>>3));
+        break;
+    case GDF_16BIT_565RGB:
+        fgx = (((CONSOLE_FG_COL>>3)<<27) | ((CONSOLE_FG_COL>>2)<<21) | ((CONSOLE_FG_COL>>3)<<16) |
+           ((CONSOLE_FG_COL>>3)<<11) | ((CONSOLE_FG_COL>>2)<<5)  |  (CONSOLE_FG_COL>>3));
+        bgx = (((CONSOLE_BG_COL>>3)<<27) | ((CONSOLE_BG_COL>>2)<<21) | ((CONSOLE_BG_COL>>3)<<16) |
+           ((CONSOLE_BG_COL>>3)<<11) | ((CONSOLE_BG_COL>>2)<<5)  |  (CONSOLE_BG_COL>>3));
+        break;
+    case GDF_32BIT_X888RGB:
+        fgx = (CONSOLE_FG_COL<<16) | (CONSOLE_FG_COL<<8) | CONSOLE_FG_COL;
+        bgx = (CONSOLE_BG_COL<<16) | (CONSOLE_BG_COL<<8) | CONSOLE_BG_COL;
+        break;
+    case GDF_24BIT_888RGB:
+        fgx = (CONSOLE_FG_COL<<24) | (CONSOLE_FG_COL<<16) | (CONSOLE_FG_COL<<8) | CONSOLE_FG_COL;
+        bgx = (CONSOLE_BG_COL<<24) | (CONSOLE_BG_COL<<16) | (CONSOLE_BG_COL<<8) | CONSOLE_BG_COL;
+        break;
+    }
+    eorx = fgx ^ bgx;
+
+#ifdef CONFIG_VIDEO_LOGO
+    /* Plot the logo and get start point of console */
+    PRINTD("Video: Drawing the logo ...\n");
+    video_console_address = video_logo();
+#else
+    video_console_address = video_fb_address;
+#endif
+
+    /* Initialize the console */
+    console_col  = 0;
+    console_row  = 0;
+
+    return 0 ;
+}
+
+
+/*****************************************************************************/
+
+int drv_video_init (void)
+{
+    int skip_dev_init;
+    device_t console_dev;
+    char *penv;
+
+    skip_dev_init = 0;
+
+     /* Force console i/o to serial ? */
+    if ((penv = getenv ("console")) != NULL)
+        if (strcmp (penv, "serial") == 0)
+            return 0;
+
+   /* Init video chip - returns with framebuffer cleared */
+    if (video_init() == -1)
+        skip_dev_init = 1;
+#ifdef CONFIG_VGA_AS_SINGLE_DEVICE
+   /* Devices VGA and Keyboard will be assigned seperately */
+    /* Init vga device */
+    if (!skip_dev_init)
+    {
+        memset (&console_dev, 0, sizeof(console_dev));
+        strcpy(console_dev.name, "vga");
+        console_dev.ext   = DEV_EXT_VIDEO;    /* Video extensions */
+        console_dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_SYSTEM;
+        console_dev.putc  = video_putc;        /* 'putc' function */
+        console_dev.puts  = video_puts;        /* 'puts' function */
+        console_dev.tstc  = NULL;              /* 'tstc' function */
+        console_dev.getc  = NULL;              /* 'getc' function */
+
+        if (device_register (&console_dev) == 0)
+            return 1;
+    }
+#else
+    PRINTD("KBD: Keyboard init ...\n");
+    if (VIDEO_KBD_INIT_FCT == -1)
+        skip_dev_init = 1;
+
+    /* Init console device */
+    if (!skip_dev_init)
+    {
+        memset (&console_dev, 0, sizeof(console_dev));
+        strcpy(console_dev.name, "console");
+        console_dev.ext   = DEV_EXT_VIDEO;    /* Video extensions */
+        console_dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
+        console_dev.putc  = video_putc;        /* 'putc' function */
+        console_dev.puts  = video_puts;        /* 'puts' function */
+        console_dev.tstc  = VIDEO_TSTC_FCT;    /* 'tstc' function */
+        console_dev.getc  = VIDEO_GETC_FCT;    /* 'getc' function */
+
+        if (device_register (&console_dev) == 0)
+            return 1;
+    }
+#endif /* CONFIG_VGA_AS_SINGLE_DEVICE */
+    /* No console dev available */
+    return 0;
+}
+
+#endif /* CONFIG_CFB_CONSOLE */
+
+
+
+
+
+
+