add qemu graphics card initialization driver

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1612 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

4 files changed, 611 insertions, 0 deletions

diff --git a/src/drivers/emulation/qemu/Config.lb b/src/drivers/emulation/qemu/Config.lb
new file mode 100644
index 0000000000..3a8d35a057
--- /dev/null
+++ b/src/drivers/emulation/qemu/Config.lb
@@ -0,0 +1 @@
+driver init.o
diff --git a/src/drivers/emulation/qemu/fb.h b/src/drivers/emulation/qemu/fb.h
new file mode 100644
index 0000000000..01f2887707
--- /dev/null
+++ b/src/drivers/emulation/qemu/fb.h
@@ -0,0 +1,344 @@
+#ifndef _LINUX_FB_H
+#define _LINUX_FB_H
+
+#define u32 uint32_t
+#define u16 uint16_t
+#define u8	uint8_t
+#define s16	short
+
+/* Definitions of frame buffers						*/
+
+#define FB_MAJOR		29
+#define FB_MAX			32	/* sufficient for now */
+
+/* ioctls
+   0x46 is 'F'								*/
+#define FBIOGET_VSCREENINFO	0x4600
+#define FBIOPUT_VSCREENINFO	0x4601
+#define FBIOGET_FSCREENINFO	0x4602
+#define FBIOGETCMAP		0x4604
+#define FBIOPUTCMAP		0x4605
+#define FBIOPAN_DISPLAY		0x4606
+/* 0x4607-0x460B are defined below */
+/* #define FBIOGET_MONITORSPEC	0x460C */
+/* #define FBIOPUT_MONITORSPEC	0x460D */
+/* #define FBIOSWITCH_MONIBIT	0x460E */
+#define FBIOGET_CON2FBMAP	0x460F
+#define FBIOPUT_CON2FBMAP	0x4610
+#define FBIOBLANK		0x4611		/* arg: 0 or vesa level + 1 */
+#define FBIOGET_VBLANK		_IOR('F', 0x12, struct fb_vblank)
+#define FBIO_ALLOC              0x4613
+#define FBIO_FREE               0x4614
+#define FBIOGET_GLYPH           0x4615
+#define FBIOGET_HWCINFO         0x4616
+#define FBIOPUT_MODEINFO        0x4617
+#define FBIOGET_DISPINFO        0x4618
+
+
+#define FB_TYPE_PACKED_PIXELS		0	/* Packed Pixels	*/
+#define FB_TYPE_PLANES			1	/* Non interleaved planes */
+#define FB_TYPE_INTERLEAVED_PLANES	2	/* Interleaved planes	*/
+#define FB_TYPE_TEXT			3	/* Text/attributes	*/
+#define FB_TYPE_VGA_PLANES		4	/* EGA/VGA planes	*/
+
+#define FB_AUX_TEXT_MDA		0	/* Monochrome text */
+#define FB_AUX_TEXT_CGA		1	/* CGA/EGA/VGA Color text */
+#define FB_AUX_TEXT_S3_MMIO	2	/* S3 MMIO fasttext */
+#define FB_AUX_TEXT_MGA_STEP16	3	/* MGA Millenium I: text, attr, 14 reserved bytes */
+#define FB_AUX_TEXT_MGA_STEP8	4	/* other MGAs:      text, attr,  6 reserved bytes */
+
+#define FB_AUX_VGA_PLANES_VGA4		0	/* 16 color planes (EGA/VGA) */
+#define FB_AUX_VGA_PLANES_CFB4		1	/* CFB4 in planes (VGA) */
+#define FB_AUX_VGA_PLANES_CFB8		2	/* CFB8 in planes (VGA) */
+
+#define FB_VISUAL_MONO01		0	/* Monochr. 1=Black 0=White */
+#define FB_VISUAL_MONO10		1	/* Monochr. 1=White 0=Black */
+#define FB_VISUAL_TRUECOLOR		2	/* True color	*/
+#define FB_VISUAL_PSEUDOCOLOR		3	/* Pseudo color (like atari) */
+#define FB_VISUAL_DIRECTCOLOR		4	/* Direct color */
+#define FB_VISUAL_STATIC_PSEUDOCOLOR	5	/* Pseudo color readonly */
+
+#define FB_ACCEL_NONE		0	/* no hardware accelerator	*/
+#define FB_ACCEL_ATARIBLITT	1	/* Atari Blitter		*/
+#define FB_ACCEL_AMIGABLITT	2	/* Amiga Blitter                */
+#define FB_ACCEL_S3_TRIO64	3	/* Cybervision64 (S3 Trio64)    */
+#define FB_ACCEL_NCR_77C32BLT	4	/* RetinaZ3 (NCR 77C32BLT)      */
+#define FB_ACCEL_S3_VIRGE	5	/* Cybervision64/3D (S3 ViRGE)	*/
+#define FB_ACCEL_ATI_MACH64GX	6	/* ATI Mach 64GX family		*/
+#define FB_ACCEL_DEC_TGA	7	/* DEC 21030 TGA		*/
+#define FB_ACCEL_ATI_MACH64CT	8	/* ATI Mach 64CT family		*/
+#define FB_ACCEL_ATI_MACH64VT	9	/* ATI Mach 64CT family VT class */
+#define FB_ACCEL_ATI_MACH64GT	10	/* ATI Mach 64CT family GT class */
+#define FB_ACCEL_SUN_CREATOR	11	/* Sun Creator/Creator3D	*/
+#define FB_ACCEL_SUN_CGSIX	12	/* Sun cg6			*/
+#define FB_ACCEL_SUN_LEO	13	/* Sun leo/zx			*/
+#define FB_ACCEL_IMS_TWINTURBO	14	/* IMS Twin Turbo		*/
+#define FB_ACCEL_3DLABS_PERMEDIA2 15	/* 3Dlabs Permedia 2		*/
+#define FB_ACCEL_MATROX_MGA2064W 16	/* Matrox MGA2064W (Millenium)	*/
+#define FB_ACCEL_MATROX_MGA1064SG 17	/* Matrox MGA1064SG (Mystique)	*/
+#define FB_ACCEL_MATROX_MGA2164W 18	/* Matrox MGA2164W (Millenium II) */
+#define FB_ACCEL_MATROX_MGA2164W_AGP 19	/* Matrox MGA2164W (Millenium II) */
+#define FB_ACCEL_MATROX_MGAG100	20	/* Matrox G100 (Productiva G100) */
+#define FB_ACCEL_MATROX_MGAG200	21	/* Matrox G200 (Myst, Mill, ...) */
+#define FB_ACCEL_SUN_CG14	22	/* Sun cgfourteen		 */
+#define FB_ACCEL_SUN_BWTWO	23	/* Sun bwtwo			*/
+#define FB_ACCEL_SUN_CGTHREE	24	/* Sun cgthree			*/
+#define FB_ACCEL_SUN_TCX	25	/* Sun tcx			*/
+#define FB_ACCEL_MATROX_MGAG400	26	/* Matrox G400			*/
+#define FB_ACCEL_NV3		27	/* nVidia RIVA 128              */
+#define FB_ACCEL_NV4		28	/* nVidia RIVA TNT		*/
+#define FB_ACCEL_NV5		29	/* nVidia RIVA TNT2		*/
+#define FB_ACCEL_CT_6555x	30	/* C&T 6555x			*/
+#define FB_ACCEL_3DFX_BANSHEE	31	/* 3Dfx Banshee			*/
+#define FB_ACCEL_ATI_RAGE128	32	/* ATI Rage128 family		*/
+#define FB_ACCEL_IGS_CYBER2000	33	/* CyberPro 2000		*/
+#define FB_ACCEL_IGS_CYBER2010	34	/* CyberPro 2010		*/
+#define FB_ACCEL_IGS_CYBER5000	35	/* CyberPro 5000		*/
+#define FB_ACCEL_SIS_GLAMOUR    36	/* SiS 300/630/540              */
+#define FB_ACCEL_3DLABS_PERMEDIA3 37	/* 3Dlabs Permedia 3		*/
+#define FB_ACCEL_ATI_RADEON	38	/* ATI Radeon family		*/
+#define FB_ACCEL_SIS_GLAMOUR_2  40	/* SiS 315, 650, 740		*/
+#define FB_ACCEL_SIS_XABRE	41	/* SiS 330 ("Xabre")		*/
+
+#define FB_ACCEL_NEOMAGIC_NM2070 90	/* NeoMagic NM2070              */
+#define FB_ACCEL_NEOMAGIC_NM2090 91	/* NeoMagic NM2090              */
+#define FB_ACCEL_NEOMAGIC_NM2093 92	/* NeoMagic NM2093              */
+#define FB_ACCEL_NEOMAGIC_NM2097 93	/* NeoMagic NM2097              */
+#define FB_ACCEL_NEOMAGIC_NM2160 94	/* NeoMagic NM2160              */
+#define FB_ACCEL_NEOMAGIC_NM2200 95	/* NeoMagic NM2200              */
+#define FB_ACCEL_NEOMAGIC_NM2230 96	/* NeoMagic NM2230              */
+#define FB_ACCEL_NEOMAGIC_NM2360 97	/* NeoMagic NM2360              */
+#define FB_ACCEL_NEOMAGIC_NM2380 98	/* NeoMagic NM2380              */
+
+#if 0
+
+struct fb_fix_screeninfo {
+	char id[16];			/* identification string eg "TT Builtin" */
+	unsigned long smem_start;	/* Start of frame buffer mem */
+					/* (physical address) */
+	u32 smem_len;			/* Length of frame buffer mem */
+	u32 type;			/* see FB_TYPE_*		*/
+	u32 type_aux;			/* Interleave for interleaved Planes */
+	u32 visual;			/* see FB_VISUAL_*		*/ 
+	u16 xpanstep;			/* zero if no hardware panning  */
+	u16 ypanstep;			/* zero if no hardware panning  */
+	u16 ywrapstep;		/* zero if no hardware ywrap    */
+	u32 line_length;		/* length of a line in bytes    */
+	unsigned long mmio_start;	/* Start of Memory Mapped I/O   */
+					/* (physical address) */
+	u32 mmio_len;			/* Length of Memory Mapped I/O  */
+	u32 accel;			/* Type of acceleration available */
+	u16 reserved[3];		/* Reserved for future compatibility */
+};
+
+#endif
+
+/* Interpretation of offset for color fields: All offsets are from the right,
+ * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
+ * can use the offset as right argument to <<). A pixel afterwards is a bit
+ * stream and is written to video memory as that unmodified. This implies
+ * big-endian byte order if bits_per_pixel is greater than 8.
+ */
+struct fb_bitfield {
+	u32 offset;			/* beginning of bitfield	*/
+	u32 length;			/* length of bitfield		*/
+	u32 msb_right;		/* != 0 : Most significant bit is */ 
+					/* right */ 
+};
+
+#define FB_NONSTD_HAM		1	/* Hold-And-Modify (HAM)        */
+
+#define FB_ACTIVATE_NOW		0	/* set values immediately (or vbl)*/
+#define FB_ACTIVATE_NXTOPEN	1	/* activate on next open	*/
+#define FB_ACTIVATE_TEST	2	/* don't set, round up impossible */
+#define FB_ACTIVATE_MASK       15
+					/* values			*/
+#define FB_ACTIVATE_VBL	       16	/* activate values on next vbl  */
+#define FB_CHANGE_CMAP_VBL     32	/* change colormap on vbl	*/
+#define FB_ACTIVATE_ALL	       64	/* change all VCs on this fb	*/
+
+#define FB_ACCELF_TEXT		1	/* text mode acceleration */
+
+#define FB_SYNC_HOR_HIGH_ACT	1	/* horizontal sync high active	*/
+#define FB_SYNC_VERT_HIGH_ACT	2	/* vertical sync high active	*/
+#define FB_SYNC_EXT		4	/* external sync		*/
+#define FB_SYNC_COMP_HIGH_ACT	8	/* composite sync high active   */
+#define FB_SYNC_BROADCAST	16	/* broadcast video timings      */
+					/* vtotal = 144d/288n/576i => PAL  */
+					/* vtotal = 121d/242n/484i => NTSC */
+#define FB_SYNC_ON_GREEN	32	/* sync on green */
+
+#define FB_VMODE_NONINTERLACED  0	/* non interlaced */
+#define FB_VMODE_INTERLACED	1	/* interlaced	*/
+#define FB_VMODE_DOUBLE		2	/* double scan */
+#define FB_VMODE_MASK		255
+
+#define FB_VMODE_YWRAP		256	/* ywrap instead of panning     */
+#define FB_VMODE_SMOOTH_XPAN	512	/* smooth xpan possible (internally used) */
+#define FB_VMODE_CONUPDATE	512	/* don't update x/yoffset	*/
+
+struct fb_var_screeninfo {
+	u32 xres;			/* visible resolution		*/
+	u32 yres;
+	u32 xres_virtual;		/* virtual resolution		*/
+	u32 yres_virtual;
+	u32 xoffset;			/* offset from virtual to visible */
+	u32 yoffset;			/* resolution			*/
+
+	u32 bits_per_pixel;		/* guess what			*/
+	u32 grayscale;		/* != 0 Graylevels instead of colors */
+
+	struct fb_bitfield red;		/* bitfield in fb mem if true color, */
+	struct fb_bitfield green;	/* else only length is significant */
+	struct fb_bitfield blue;
+	struct fb_bitfield transp;	/* transparency			*/	
+
+	u32 nonstd;			/* != 0 Non standard pixel format */
+
+	u32 activate;			/* see FB_ACTIVATE_*		*/
+
+	u32 height;			/* height of picture in mm    */
+	u32 width;			/* width of picture in mm     */
+
+	u32 accel_flags;		/* acceleration flags (hints)	*/
+
+	/* Timing: All values in pixclocks, except pixclock (of course) */
+	u32 pixclock;			/* pixel clock in ps (pico seconds) */
+	u32 left_margin;		/* time from sync to picture	*/
+	u32 right_margin;		/* time from picture to sync	*/
+	u32 upper_margin;		/* time from sync to picture	*/
+	u32 lower_margin;
+	u32 hsync_len;		/* length of horizontal sync	*/
+	u32 vsync_len;		/* length of vertical sync	*/
+	u32 sync;			/* see FB_SYNC_*		*/
+	u32 vmode;			/* see FB_VMODE_*		*/
+	u32 reserved[6];		/* Reserved for future compatibility */
+};
+
+struct fb_cmap {
+	u32 start;			/* First entry	*/
+	u32 len;			/* Number of entries */
+	u16 *red;			/* Red values	*/
+	u16 *green;
+	u16 *blue;
+	u16 *transp;			/* transparency, can be NULL */
+};
+
+struct fb_con2fbmap {
+	u32 console;
+	u32 framebuffer;
+};
+
+/* VESA Blanking Levels */
+#define VESA_NO_BLANKING        0
+#define VESA_VSYNC_SUSPEND      1
+#define VESA_HSYNC_SUSPEND      2
+#define VESA_POWERDOWN          3
+
+struct fb_monspecs {
+	u32 hfmin;			/* hfreq lower limit (Hz) */
+	u32 hfmax; 			/* hfreq upper limit (Hz) */
+	u16 vfmin;			/* vfreq lower limit (Hz) */
+	u16 vfmax;			/* vfreq upper limit (Hz) */
+	unsigned dpms : 1;		/* supports DPMS */
+};
+
+#define FB_VBLANK_VBLANKING	0x001	/* currently in a vertical blank */
+#define FB_VBLANK_HBLANKING	0x002	/* currently in a horizontal blank */
+#define FB_VBLANK_HAVE_VBLANK	0x004	/* vertical blanks can be detected */
+#define FB_VBLANK_HAVE_HBLANK	0x008	/* horizontal blanks can be detected */
+#define FB_VBLANK_HAVE_COUNT	0x010	/* global retrace counter is available */
+#define FB_VBLANK_HAVE_VCOUNT	0x020	/* the vcount field is valid */
+#define FB_VBLANK_HAVE_HCOUNT	0x040	/* the hcount field is valid */
+#define FB_VBLANK_VSYNCING	0x080	/* currently in a vsync */
+#define FB_VBLANK_HAVE_VSYNC	0x100	/* verical syncs can be detected */
+
+struct fb_vblank {
+	u32 flags;			/* FB_VBLANK flags */
+	u32 count;			/* counter of retraces since boot */
+	u32 vcount;			/* current scanline position */
+	u32 hcount;			/* current scandot position */
+	u32 reserved[4];		/* reserved for future compatibility */
+};
+
+
+#if 1
+
+#define FBCMD_GET_CURRENTPAR	0xDEAD0005
+#define FBCMD_SET_CURRENTPAR	0xDEAD8005
+
+#endif
+
+
+
+   /*
+    *    Hardware Cursor
+    */
+
+#define FBIOGET_FCURSORINFO     0x4607
+#define FBIOGET_VCURSORINFO     0x4608
+#define FBIOPUT_VCURSORINFO     0x4609
+#define FBIOGET_CURSORSTATE     0x460A
+#define FBIOPUT_CURSORSTATE     0x460B
+
+
+struct fb_fix_cursorinfo {
+	u16 crsr_width;		/* width and height of the cursor in */
+	u16 crsr_height;		/* pixels (zero if no cursor)	*/
+	u16 crsr_xsize;		/* cursor size in display pixels */
+	u16 crsr_ysize;
+	u16 crsr_color1;		/* colormap entry for cursor color1 */
+	u16 crsr_color2;		/* colormap entry for cursor color2 */
+};
+
+struct fb_var_cursorinfo {
+	u16 width;
+	u16 height;
+	u16 xspot;
+	u16 yspot;
+	u8 data[1];			/* field with [height][width]        */
+};
+
+struct fb_cursorstate {
+	s16 xoffset;
+	s16 yoffset;
+	u16 mode;
+};
+
+
+struct fb_info {
+   char modename[40];                   /* default video mode */
+//   kdev_t node;
+   int flags;
+   int open;                            /* Has this been open already ? */
+   struct fb_var_screeninfo var;        /* Current var */
+#if 0
+   struct fb_fix_screeninfo fix;        /* Current fix */
+#endif
+   struct fb_monspecs monspecs;         /* Current Monitor specs */
+   struct fb_cmap cmap;                 /* Current cmap */
+//   struct fb_ops *fbops;
+   char *screen_base;                   /* Virtual address */
+   struct display *disp;                /* initial display variable */
+//   struct vc_data *display_fg;          /* Console visible on this display */
+   char fontname[40];                   /* default font name */
+#if 0
+   devfs_handle_t devfs_handle;         /* Devfs handle for new name         */
+   devfs_handle_t devfs_lhandle;        /* Devfs handle for compat. symlink  */
+   int (*changevar)(int);               /* tell console var has changed */
+   int (*switch_con)(int, struct fb_info*); 
+                                        /* tell fb to switch consoles */
+   int (*updatevar)(int, struct fb_info*);
+                                        /* tell fb to update the vars */
+   void (*blank)(int, struct fb_info*); /* tell fb to (un)blank the screen */
+                                        /* arg = 0: unblank */
+                                        /* arg > 0: VESA level (arg-1) */
+#endif
+   void *pseudo_palette;                /* Fake palette of 16 colors and
+                                           the cursor's color for non
+                                           palette mode */
+   /* From here on everything is device dependent */
+   void *par;   
+};  
+
+#endif /* _LINUX_FB_H */
diff --git a/src/drivers/emulation/qemu/fbcon.h b/src/drivers/emulation/qemu/fbcon.h
new file mode 100644
index 0000000000..56328323dc
--- /dev/null
+++ b/src/drivers/emulation/qemu/fbcon.h
@@ -0,0 +1,176 @@
+/*
+ *  linux/drivers/video/fbcon.h -- Low level frame buffer based console driver
+ *
+ *	Copyright (C) 1997 Geert Uytterhoeven
+ *
+ *  This file is subject to the terms and conditions of the GNU General Public
+ *  License.  See the file COPYING in the main directory of this archive
+ *  for more details.
+ */
+
+#ifndef _VIDEO_FBCON_H
+#define _VIDEO_FBCON_H
+
+
+
+struct display {
+    /* Filled in by the frame buffer device */
+
+    struct fb_var_screeninfo var;   /* variable infos. yoffset and vmode */
+                                    /* are updated by fbcon.c */
+    struct fb_cmap cmap;            /* colormap */
+    char *screen_base;              /* pointer to top of virtual screen */    
+                                    /* (virtual address) */
+    int visual;
+    int type;                       /* see FB_TYPE_* */
+    int type_aux;                   /* Interleave for interleaved Planes */
+    u16 ypanstep;               /* zero if no hardware ypan */
+    u16 ywrapstep;              /* zero if no hardware ywrap */
+    u32 line_length;             /* length of a line in bytes */
+    u16 can_soft_blank;         /* zero if no hardware blanking */
+    u16 inverse;                /* != 0 text black on white as default */
+//    struct display_switch *dispsw;  /* low level operations */
+//    void *dispsw_data;              /* optional dispsw helper data */
+
+#if 0
+    struct fb_fix_cursorinfo fcrsr;
+    struct fb_var_cursorinfo *vcrsr;
+    struct fb_cursorstate crsrstate;
+#endif
+
+    /* Filled in by the low-level console driver */
+
+    struct vc_data *conp;           /* pointer to console data */
+//    struct fb_info *fb_info;        /* frame buffer for this console */
+    int vrows;                      /* number of virtual rows */
+    unsigned short cursor_x;        /* current cursor position */
+    unsigned short cursor_y;
+    int fgcol;                      /* text colors */
+    int bgcol;
+    u32 next_line;               /* offset to one line below */
+    u32 next_plane;              /* offset to next plane */
+    u8 *fontdata;               /* Font associated to this display */
+    unsigned short _fontheightlog;
+    unsigned short _fontwidthlog;
+    unsigned short _fontheight;
+    unsigned short _fontwidth;
+    int userfont;                   /* != 0 if fontdata kmalloc()ed */
+    u16 scrollmode;             /* Scroll Method */
+    short yscroll;                  /* Hardware scrolling */
+    unsigned char fgshift, bgshift;
+    unsigned short charmask;        /* 0xff or 0x1ff */
+};
+
+
+#define fontheight(p) ((p)->_fontheight)
+#define fontheightlog(p) ((p)->_fontheightlog)
+
+#ifdef CONFIG_FBCON_FONTWIDTH8_ONLY
+
+/* fontwidth w is supported by dispsw */
+#define FONTWIDTH(w)	(1 << ((8) - 1))
+/* fontwidths w1-w2 inclusive are supported by dispsw */
+#define FONTWIDTHRANGE(w1,w2)	FONTWIDTH(8)
+
+#define fontwidth(p) (8)
+#define fontwidthlog(p) (0)
+
+#else
+
+/* fontwidth w is supported by dispsw */
+#define FONTWIDTH(w)	(1 << ((w) - 1))
+/* fontwidths w1-w2 inclusive are supported by dispsw */
+#define FONTWIDTHRANGE(w1,w2)	(FONTWIDTH(w2+1) - FONTWIDTH(w1))
+
+#define fontwidth(p) ((p)->_fontwidth)
+#define fontwidthlog(p) ((p)->_fontwidthlog)
+
+#endif
+
+    /*
+     *  Attribute Decoding
+     */
+
+/* Color */
+#define attr_fgcol(p,s)    \
+	(((s) >> ((p)->fgshift)) & 0x0f)
+#define attr_bgcol(p,s)    \
+	(((s) >> ((p)->bgshift)) & 0x0f)
+#define	attr_bgcol_ec(p,conp) \
+	((conp) ? (((conp)->vc_video_erase_char >> ((p)->bgshift)) & 0x0f) : 0)
+
+/* Monochrome */
+#define attr_bold(p,s) \
+	((s) & 0x200)
+#define attr_reverse(p,s) \
+	(((s) & 0x800) ^ ((p)->inverse ? 0x800 : 0))
+#define attr_underline(p,s) \
+	((s) & 0x400)
+#define attr_blink(p,s) \
+	((s) & 0x8000)
+	
+    /*
+     *  Scroll Method
+     */
+     
+/* Internal flags */
+#define __SCROLL_YPAN		0x001
+#define __SCROLL_YWRAP		0x002
+#define __SCROLL_YMOVE		0x003
+#define __SCROLL_YREDRAW	0x004
+#define __SCROLL_YMASK		0x00f
+#define __SCROLL_YFIXED		0x010
+#define __SCROLL_YNOMOVE	0x020
+#define __SCROLL_YPANREDRAW	0x040
+#define __SCROLL_YNOPARTIAL	0x080
+
+/* Only these should be used by the drivers */
+/* Which one should you use? If you have a fast card and slow bus,
+   then probably just 0 to indicate fbcon should choose between
+   YWRAP/YPAN+MOVE/YMOVE. On the other side, if you have a fast bus
+   and even better if your card can do fonting (1->8/32bit painting),
+   you should consider either SCROLL_YREDRAW (if your card is
+   able to do neither YPAN/YWRAP), or SCROLL_YNOMOVE.
+   The best is to test it with some real life scrolling (usually, not
+   all lines on the screen are filled completely with non-space characters,
+   and REDRAW performs much better on such lines, so don't cat a file
+   with every line covering all screen columns, it would not be the right
+   benchmark).
+ */
+#define SCROLL_YREDRAW		(__SCROLL_YFIXED|__SCROLL_YREDRAW)
+#define SCROLL_YNOMOVE		(__SCROLL_YNOMOVE|__SCROLL_YPANREDRAW)
+
+/* SCROLL_YNOPARTIAL, used in combination with the above, is for video
+   cards which can not handle using panning to scroll a portion of the
+   screen without excessive flicker.  Panning will only be used for
+   whole screens.
+ */
+/* Namespace consistency */
+#define SCROLL_YNOPARTIAL	__SCROLL_YNOPARTIAL
+
+
+#if defined(__i386__) || defined(__alpha__) || \
+      defined(__x86_64__) || defined(__hppa__) || \
+      defined(__powerpc64__)
+
+#define fb_readb __raw_readb
+#define fb_readw __raw_readw
+#define fb_readl __raw_readl
+#define fb_writeb __raw_writeb
+#define fb_writew __raw_writew
+#define fb_writel __raw_writel
+#define fb_memset memset_io
+
+#else
+
+#define fb_readb(addr) (*(volatile u8 *) (addr))
+#define fb_readw(addr) (*(volatile u16 *) (addr))
+#define fb_readl(addr) (*(volatile u32 *) (addr))
+#define fb_writeb(b,addr) (*(volatile u8 *) (addr) = (b))
+#define fb_writew(b,addr) (*(volatile u16 *) (addr) = (b))
+#define fb_writel(b,addr) (*(volatile u32 *) (addr) = (b))
+#define fb_memset memset
+
+#endif
+
+#endif /* _VIDEO_FBCON_H */
diff --git a/src/drivers/emulation/qemu/init.c b/src/drivers/emulation/qemu/init.c
new file mode 100644
index 0000000000..88fa5aeb75
--- /dev/null
+++ b/src/drivers/emulation/qemu/init.c
@@ -0,0 +1,90 @@
+#include <delay.h>
+#include <stdlib.h>
+#include <string.h>
+#include <arch/io.h>
+
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+
+#if CONFIG_CONSOLE_BTEXT==1
+
+#define PLL_CRTC_DECODE 0
+#define SUPPORT_8_BPP_ABOVE 0
+
+#include "fb.h"
+#include "fbcon.h"
+
+#include <console/btext.h>
+
+#endif /*CONFIG_CONSOLE_BTEXT*/
+
+
+/* VGA init. We use the Bochs VESA VBE extensions  */
+#define VBE_DISPI_INDEX_ID              0x0
+#define VBE_DISPI_INDEX_XRES            0x1
+#define VBE_DISPI_INDEX_YRES            0x2
+#define VBE_DISPI_INDEX_BPP             0x3
+#define VBE_DISPI_INDEX_ENABLE          0x4
+#define VBE_DISPI_INDEX_BANK            0x5
+#define VBE_DISPI_INDEX_VIRT_WIDTH      0x6
+#define VBE_DISPI_INDEX_VIRT_HEIGHT     0x7
+#define VBE_DISPI_INDEX_X_OFFSET        0x8
+#define VBE_DISPI_INDEX_Y_OFFSET        0x9
+#define VBE_DISPI_INDEX_NB              0xa
+
+#define VBE_DISPI_ID0                   0xB0C0
+#define VBE_DISPI_ID1                   0xB0C1
+#define VBE_DISPI_ID2                   0xB0C2
+
+#define VBE_DISPI_DISABLED              0x00
+#define VBE_DISPI_ENABLED               0x01
+#define VBE_DISPI_LFB_ENABLED           0x40
+#define VBE_DISPI_NOCLEARMEM            0x80
+
+#define VBE_DISPI_LFB_PHYSICAL_ADDRESS  0xE0000000
+
+static void vbe_outw(int index, int val)
+{
+    outw(0x1ce, index);
+    outw(0x1cf, val);
+}
+
+static void qemu_init(void)
+{
+    int width=640, height=480, depth=8;
+
+    printk_debug("Initializing VGA!\n");
+    
+    vbe_outw(VBE_DISPI_INDEX_XRES, width);
+    vbe_outw(VBE_DISPI_INDEX_YRES, height);
+    vbe_outw(VBE_DISPI_INDEX_BPP, depth);
+    vbe_outw(VBE_DISPI_INDEX_ENABLE, VBE_DISPI_ENABLED);
+    outb(0x3c0, 0x20); /* disable blanking */
+/*
+    vga_fb_phys_addr = VBE_DISPI_LFB_PHYSICAL_ADDRESS;
+    vga_fb_width = width;
+    vga_fb_height = height;
+    vga_fb_depth = depth;
+    vga_fb_bpp = (depth + 7) >> 3;
+    vga_fb_linesize = width * vga_fb_bpp;
+    */
+}
+
+static struct device_operations qemu_graph_ops  = {
+        .read_resources   = pci_dev_read_resources,
+        .set_resources    = pci_dev_set_resources,
+        .enable_resources = pci_dev_enable_resources,
+        .init             = qemu_init,
+        .scan_bus         = 0,
+};
+
+static struct pci_driver qemu_graph_driver __pci_driver = {
+        .ops    = &qemu_graph_ops,
+        .vendor = 0x1234,
+        .device = 0x1111,
+};
+
+