--- zzzz-none-000/linux-2.4.17/drivers/video/virgefb.c	2001-11-14 22:52:20.000000000 +0000
+++ sangam-fb-322/linux-2.4.17/drivers/video/virgefb.c	2004-11-24 13:23:14.000000000 +0000
@@ -1,1412 +1,1412 @@
-/*
- * linux/drivers/video/virgefb.c -- CyberVision64/3D frame buffer device
- *
- *    Copyright (C) 1997 André Heynatz
- *
- *
- * This file is based on the CyberVision frame buffer device (cyberfb.c):
- *
- *    Copyright (C) 1996 Martin Apel
- *                       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.
- */
-
-#undef VIRGEFBDEBUG
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/tty.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/zorro.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/pgtable.h>
-#include <asm/amigahw.h>
-#include <asm/io.h>
-
-#include <video/s3blit.h>
-#include <video/fbcon.h>
-#include <video/fbcon-cfb8.h>
-#include <video/fbcon-cfb16.h>
-
-
-#ifdef VIRGEFBDEBUG
-#define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
-#else
-#define DPRINTK(fmt, args...)
-#endif
-
-#if 1
-#define vgawb_3d(reg,dat) \
-	if (cv3d_on_zorro2) { \
-	*((unsigned char volatile *)((Cyber_vcode_switch_base) + 0x04)) = \
-	(0x01 & 0xffff); asm volatile ("nop"); \
-	} \
-	(*((unsigned char *)(CyberVGARegs + (reg ^ 3))) = dat); \
-	if (cv3d_on_zorro2) { \
-	*((unsigned char volatile *)((Cyber_vcode_switch_base) + 0x04)) = \
-	(0x02 & 0xffff); asm volatile ("nop"); \
-	}
-#define vgaww_3d(reg,dat) \
-                (*((unsigned word *)(CyberVGARegs + (reg ^ 2))) = swab16(dat))
-#define vgawl_3d(reg,dat) \
-                (*((unsigned long *)(CyberVGARegs + reg)) = swab32(dat))
-#else
-     /*
-      * Dunno why this doesn't work at the moment - we'll have to look at
-      * it later.
-      */
-#define vgawb_3d(reg,dat) \
-                (*((unsigned char *)(CyberRegs + 0x8000 + reg)) = dat)
-#define vgaww_3d(reg,dat) \
-                (*((unsigned word *)(CyberRegs + 0x8000 + reg)) = dat)
-#define vgawl_3d(reg,dat) \
-                (*((unsigned long *)(CyberRegs + 0x8000 + reg)) = dat)
-#endif
-
-     /*
-      * We asume P5 mapped the big-endian version of these registers.
-      */
-#define wb_3d(reg,dat) \
-                (*((unsigned char volatile *)(CyberRegs + reg)) = dat)
-#define ww_3d(reg,dat) \
-                (*((unsigned word volatile *)(CyberRegs + reg)) = dat)
-#define wl_3d(reg,dat) \
-                (*((unsigned long volatile *)(CyberRegs + reg)) = dat)
-#define rl_3d(reg) \
-                (*((unsigned long volatile *)(CyberRegs + reg)))
-
-#define Select_Zorro2_FrameBuffer(flag) \
-	do { \
-		*((unsigned char volatile *)((Cyber_vcode_switch_base) + 0x08)) = \
-		((flag * 0x40) & 0xffff); asm volatile ("nop"); \
-	} while (0)
-/*
- *	may be needed when we initialize the board?
- *	8bit: flag = 2, 16 bit: flag = 1, 24/32bit: flag = 0 
- *	_when_ the board is initialized, depth doesnt matter, we allways write
- *	to the same address, aperture seems not to matter on Z2.
- */
-
-struct virgefb_par {
-   int xres;
-   int yres;
-   int bpp;
-   int accel;
-};
-
-static struct virgefb_par current_par;
-
-static int current_par_valid = 0;
-static int currcon = 0;
-
-static struct display disp;
-static struct fb_info fb_info;
-
-static union {
-#ifdef FBCON_HAS_CFB16
-    u16 cfb16[16];
-#endif
-} fbcon_cmap;
-
-/*
- *    Switch for Chipset Independency
- */
-
-static struct fb_hwswitch {
-
-   /* Initialisation */
-
-   int (*init)(void);
-
-   /* Display Control */
-
-   int (*encode_fix)(struct fb_fix_screeninfo *fix, struct virgefb_par *par);
-   int (*decode_var)(struct fb_var_screeninfo *var, struct virgefb_par *par);
-   int (*encode_var)(struct fb_var_screeninfo *var, struct virgefb_par *par);
-   int (*getcolreg)(u_int regno, u_int *red, u_int *green, u_int *blue,
-                    u_int *transp, struct fb_info *info);
-   int (*setcolreg)(u_int regno, u_int red, u_int green, u_int blue,
-                    u_int transp, struct fb_info *info);
-   void (*blank)(int blank);
-} *fbhw;
-
-static int blit_maybe_busy = 0;
-
-/*
- *    Frame Buffer Name
- */
-
-static char virgefb_name[16] = "Cybervision/3D";
-
-
-/*
- *    Cybervision Graphics Board
- */
-
-#define VIRGE8_WIDTH 1152
-#define VIRGE8_HEIGHT 886
-#define VIRGE8_PIXCLOCK 12500    /* ++Geert: Just a guess */
-
-#if 1
-#define VIRGE16_WIDTH 800
-#define VIRGE16_HEIGHT 600
-#endif
-#define VIRGE16_PIXCLOCK 25000   /* ++Geert: Just a guess */
-
-
-static unsigned char Cyber_colour_table [256][3];
-static unsigned long CyberMem;
-static unsigned long CyberSize;
-static volatile char *CyberRegs;
-static volatile unsigned long CyberVGARegs; /* ++Andre: for CV64/3D, see macros at the beginning */
-static unsigned long CyberMem_phys;
-static unsigned long CyberRegs_phys;
-static unsigned long Cyber_register_base;
-static unsigned long Cyber_vcode_switch_base;
-static unsigned char cv3d_on_zorro2;
- 
-#define CYBMEM_OFFSET_8  0x800000	/* offsets from start of video - */ 
-#define CYBMEM_OFFSET_16 0x400000	/* ram to appropriate aperture */
-
-/*
- *    Predefined Video Modes
- */
-
-static struct {
-    const char *name;
-    struct fb_var_screeninfo var;
-} virgefb_predefined[] __initdata = {
-    {
-	"640x480-8", {		/* Cybervision 8 bpp */
-	    640, 480, 640, 480, 0, 0, 8, 0,
-	    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
-	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE8_PIXCLOCK, 64, 96, 35, 12, 112, 2,
-	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-	}
-    }, {
-	"800x600-8", {		/* Cybervision 8 bpp */
-	    800, 600, 800, 600, 0, 0, 8, 0,
-	    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
-	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE8_PIXCLOCK, 64, 96, 35, 12, 112, 2,
-	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-	}
-    }, {
-	"1024x768-8", {		/* Cybervision 8 bpp */
-	    1024, 768, 1024, 768, 0, 0, 8, 0,
-	    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
-	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE8_PIXCLOCK, 64, 96, 35, 12, 112, 2,
-	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-	}
-    }, {
-	"1152x886-8", {		/* Cybervision 8 bpp */
-	    1152, 886, 1152, 886, 0, 0, 8, 0,
-	    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
-	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE8_PIXCLOCK, 64, 96, 35, 12, 112, 2,
-	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-	}
-    }, {
-	"1280x1024-8", {	/* Cybervision 8 bpp */
-	    1280, 1024, 1280, 1024, 0, 0, 8, 0,
-	    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
-	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE8_PIXCLOCK, 64, 96, 35, 12, 112, 2,
-	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-	}
-    }, {
-	"1600x1200-8", {	/* Cybervision 8 bpp */
-	    1600, 1200, 1600, 1200, 0, 0, 8, 0,
-	    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
-	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE8_PIXCLOCK, 64, 96, 35, 12, 112, 2,
-	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-	}
-    }, {
-	"640x480-16", {		/* Cybervision 16 bpp */
-	    640, 480, 640, 480, 0, 0, 16, 0,
-	    {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
-	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE16_PIXCLOCK, 64, 96, 35, 12, 112, 2,
-	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-	}
-    }, {
-	"800x600-16", {		/* Cybervision 16 bpp */
-	    800, 600, 800, 600, 0, 0, 16, 0,
-	    {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
-	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE16_PIXCLOCK, 64, 96, 35, 12, 112, 2,
-	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-	}
-    }, {
-	"1024x768-16", {         /* Cybervision 16 bpp */
-	    1024, 768, 1024, 768, 0, 0, 16, 0,
-	    {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
-	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE16_PIXCLOCK, 64, 96, 35, 12, 112, 2,
-	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-       }
-    }, {
-	"1152x886-16", {         /* Cybervision 16 bpp */
-	    1152, 886, 1152, 886, 0, 0, 16, 0,
-	    {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
-	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE16_PIXCLOCK, 64, 96, 35, 12, 112, 2,
-	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-       }
-    }, {
-	"1280x1024-16", {         /* Cybervision 16 bpp */
-	    1280, 1024, 1280, 1024, 0, 0, 16, 0,
-	    {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
-	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE16_PIXCLOCK, 64, 96, 35, 12, 112, 2,
-	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-       }
-    }, {
-	"1600x1200-16", {         /* Cybervision 16 bpp */
-	    1600, 1200, 1600, 1200, 0, 0, 16, 0,
-	    {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
-	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE16_PIXCLOCK, 64, 96, 35, 12, 112, 2,
-	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-       }
-    }
-};
-
-
-#define NUM_TOTAL_MODES    ARRAY_SIZE(virgefb_predefined)
-
-
-static int Cyberfb_inverse = 0;
-
-/*
- *    Some default modes
- */
-
-#define VIRGE8_DEFMODE     (1)
-#define VIRGE16_DEFMODE    (7)
-
-static struct fb_var_screeninfo virgefb_default;
-
-
-/*
- *    Interface used by the world
- */
-
-int virgefb_setup(char*);
-
-static int virgefb_get_fix(struct fb_fix_screeninfo *fix, int con, struct
-fb_info *info);
-static int virgefb_get_var(struct fb_var_screeninfo *var, int con, struct
-fb_info *info);
-static int virgefb_set_var(struct fb_var_screeninfo *var, int con, struct
-fb_info *info);
-static int virgefb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
-			    struct fb_info *info);
-static int virgefb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
-			    struct fb_info *info);
-
-
-/*
- *    Interface to the low level console driver
- */
-
-int virgefb_init(void);
-static int Cyberfb_switch(int con, struct fb_info *info);
-static int Cyberfb_updatevar(int con, struct fb_info *info);
-static void Cyberfb_blank(int blank, struct fb_info *info);
-
-
-/*
- *    Text console acceleration
- */
-
-#ifdef FBCON_HAS_CFB8
-static struct display_switch fbcon_virge8;
-#endif
-
-#ifdef FBCON_HAS_CFB16
-static struct display_switch fbcon_virge16;
-#endif
-
-/*
- *   Hardware Specific Routines
- */
-
-static int Cyber_init(void);
-static int Cyber_encode_fix(struct fb_fix_screeninfo *fix,
-                          struct virgefb_par *par);
-static int Cyber_decode_var(struct fb_var_screeninfo *var,
-                          struct virgefb_par *par);
-static int Cyber_encode_var(struct fb_var_screeninfo *var,
-                          struct virgefb_par *par);
-static int Cyber_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
-                         u_int *transp, struct fb_info *info);
-static int Cyber_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
-                         u_int transp, struct fb_info *info);
-static void Cyber_blank(int blank);
-
-
-/*
- *    Internal routines
- */
-
-static void virgefb_get_par(struct virgefb_par *par);
-static void virgefb_set_par(struct virgefb_par *par);
-static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive);
-static void do_install_cmap(int con, struct fb_info *info);
-static void virgefb_set_disp(int con, struct fb_info *info);
-static int get_video_mode(const char *name);
-
-
-/* -------------------- Hardware specific routines ------------------------- */
-
-
-/*
- *    Initialization
- *
- *    Set the default video mode for this chipset. If a video mode was
- *    specified on the command line, it will override the default mode.
- */
-
-static int Cyber_init(void)
-{
-	int i;
-
-	for (i = 0; i < 256; i++)
-	{
-		Cyber_colour_table [i][0] = i;
-		Cyber_colour_table [i][1] = i;
-		Cyber_colour_table [i][2] = i;
-	}
-
-	/*
-	 * Just clear the thing for the biggest mode.
-	 *
-	 * ++Andre, TODO: determine size first, then clear all memory
-	 *                (the 3D penguin might need texture memory :-) )
-	 */
-
-	if (cv3d_on_zorro2) {
-		CyberSize = 0x00380000; /* 3.5 MB , we need some space for the registers? */
-	} else {
-		CyberSize = 0x00400000; /* 4 MB */
-	}
-
-	memset ((char*)CyberMem, 0, CyberSize);
-
-	/* Disable hardware cursor */
-	vgawb_3d(0x3c8, 255);
-	vgawb_3d(0x3c9, 56);
-	vgawb_3d(0x3c9, 100);
-	vgawb_3d(0x3c9, 160);
-
-	vgawb_3d(0x3c8, 254);
-	vgawb_3d(0x3c9, 0);
-	vgawb_3d(0x3c9, 0);
-	vgawb_3d(0x3c9, 0);
-
-	/* Disable hardware cursor */
-	vgawb_3d(S3_CRTC_ADR, S3_REG_LOCK2);
-	vgawb_3d(S3_CRTC_DATA, 0xa0);
-	vgawb_3d(S3_CRTC_ADR, S3_HGC_MODE);
-	vgawb_3d(S3_CRTC_DATA, 0x00);
-	vgawb_3d(S3_CRTC_ADR, S3_HWGC_DX);
-	vgawb_3d(S3_CRTC_DATA, 0x00);
-	vgawb_3d(S3_CRTC_ADR, S3_HWGC_DY);
-	vgawb_3d(S3_CRTC_DATA, 0x00);
-
-	return 0; /* TODO: hardware cursor for CV64/3D */
-}
-
-
-/*
- *    This function should fill in the `fix' structure based on the
- *    values in the `par' structure.
- */
-
-static int Cyber_encode_fix(struct fb_fix_screeninfo *fix,
-			    struct virgefb_par *par)
-{
-	memset(fix, 0, sizeof(struct fb_fix_screeninfo));
-	strcpy(fix->id, virgefb_name);
-	if (cv3d_on_zorro2) {
-		fix->smem_start = CyberMem_phys;
-	} else {
-		switch (par->bpp) {
-			case 8:
-				fix->smem_start = (CyberMem_phys + CYBMEM_OFFSET_8);
-				break;
-			case 16:
-				fix->smem_start = (CyberMem_phys + CYBMEM_OFFSET_16);
-				break;
-		}
-	}
-	fix->smem_len = CyberSize;
-	fix->mmio_start = CyberRegs_phys;
-	fix->mmio_len = 0x10000; /* TODO: verify this for the CV64/3D */
-
-	fix->type = FB_TYPE_PACKED_PIXELS;
-	fix->type_aux = 0;
-	if (par->bpp == 8)
-		fix->visual = FB_VISUAL_PSEUDOCOLOR;
-	else
-		fix->visual = FB_VISUAL_TRUECOLOR;
-
-	fix->xpanstep = 0;
-	fix->ypanstep = 0;
-	fix->ywrapstep = 0;
-	fix->line_length = 0;
-	fix->accel = FB_ACCEL_S3_VIRGE;
-	return(0);
-}
-
-
-/*
- *    Get the video params out of `var'. If a value doesn't fit, round
- *    it up, if it's too big, return -EINVAL.
- */
-
-static int Cyber_decode_var(struct fb_var_screeninfo *var,
-			    struct virgefb_par *par)
-{
-#if 1
-	par->xres = var->xres;
-	par->yres = var->yres;
-	par->bpp = var->bits_per_pixel;
-	if (var->accel_flags & FB_ACCELF_TEXT)
-	    par->accel = FB_ACCELF_TEXT;
-	else
-	    par->accel = 0;
-#else
-	if (Cyberfb_Cyber8) {
-		par->xres = VIRGE8_WIDTH;
-		par->yres = VIRGE8_HEIGHT;
-		par->bpp = 8;
-	} else {
-		par->xres = VIRGE16_WIDTH;
-		par->yres = VIRGE16_HEIGHT;
-		par->bpp = 16;
-	}
-#endif
-	return(0);
-}
-
-
-/*
- *    Fill the `var' structure based on the values in `par' and maybe
- *    other values read out of the hardware.
- */
-
-static int Cyber_encode_var(struct fb_var_screeninfo *var,
-			    struct virgefb_par *par)
-{
-	memset(var, 0, sizeof(struct fb_var_screeninfo));
-	var->xres = par->xres;
-	var->yres = par->yres;
-	var->xres_virtual = par->xres;
-	var->yres_virtual = par->yres;
-	var->xoffset = 0;
-	var->yoffset = 0;
-
-	var->bits_per_pixel = par->bpp;
-	var->grayscale = 0;
-
-	switch (var->bits_per_pixel) {
-		case 8:		/* CLUT */
-			var->red.offset = 0;
-			var->red.length = 6;
-			var->red.msb_right = 0;
-			var->blue = var->green = var->red;
-			break;
-		case 16:	/* RGB 565 */
-			var->red.offset = 11;
-			var->red.length = 5;
-			var->green.offset = 5;
-			var->green.length = 6;
-			var->blue.offset = 0;
-			var->blue.length = 5;
-			var->transp.offset = 0;
-			var->transp.length = 0;
-			break;
-	}
-	var->red.msb_right = 0;
-	var->green.msb_right = 0;
-	var->blue.msb_right = 0;
-	var->transp.msb_right = 0;
-
-	var->nonstd = 0;
-	var->activate = 0;
-
-	var->height = -1;
-	var->width = -1;
-
- 	var->accel_flags = (par->accel &&
-		((par->bpp == 8) || (par->bpp == 16))) ? FB_ACCELF_TEXT : 0;
-
-/*	printk("CV64/3D : %s\n",(var->accel_flags ? "accel" : "no accel")); */
-
-	var->vmode = FB_VMODE_NONINTERLACED;
-
-	/* Dummy values */
-
-	if (par->bpp == 8)
-		var->pixclock = VIRGE8_PIXCLOCK;
-	else
-		var->pixclock = VIRGE16_PIXCLOCK;
-	var->sync = 0;
-	var->left_margin = 64;
-	var->right_margin = 96;
-	var->upper_margin = 35;
-	var->lower_margin = 12;
-	var->hsync_len = 112;
-	var->vsync_len = 2;
-
-	return(0);
-}
-
-
-/*
- *    Set a single color register. The values supplied are already
- *    rounded down to the hardware's capabilities (according to the
- *    entries in the var structure). Return != 0 for invalid regno.
- */
-
-static int Cyber_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
-			   u_int transp, struct fb_info *info)
-{
-	if (((current_par.bpp==8) && (regno>255)) ||
-		((current_par.bpp!=8) && (regno>15)))
-			return (1);
-
-	if (((current_par.bpp==8) && (regno<256)) || ((current_par.bpp==16) &&(regno<16))) {
-		Cyber_colour_table [regno][0] = red >> 10;
-		Cyber_colour_table [regno][1] = green >> 10;
-		Cyber_colour_table [regno][2] = blue >> 10;
-	}
-
-	switch (current_par.bpp) {
-#ifdef FBCON_HAS_CFB8
-		case 8:
-			vgawb_3d(0x3c8, (unsigned char) regno);
-			vgawb_3d(0x3c9, ((unsigned char) (red >> 10)));
-			vgawb_3d(0x3c9, ((unsigned char) (green >> 10)));
-			vgawb_3d(0x3c9, ((unsigned char) (blue >> 10)));
-			break;
-#endif
-#ifdef FBCON_HAS_CFB16
-		case 16:
-			fbcon_cmap.cfb16[regno] =
-				((red  & 0xf800) |
-				((green & 0xfc00) >> 5) |
-				((blue  & 0xf800) >> 11));
-			break;
-#endif
-	}
-	return (0);
-}
-
-
-/*
- *    Read a single color register and split it into
- *    colors/transparent. Return != 0 for invalid regno.
- */
-
-static int Cyber_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
-			   u_int *transp, struct fb_info *info)
-{
-	int t;
-
-	if (regno > 255)
-		return (1);
-
-	if (((current_par.bpp==8) && (regno<256)) || ((current_par.bpp==16) && (regno<16))) {
-
-		t = Cyber_colour_table [regno][0];
-		*red    = (t<<10) | (t<<4) | (t>>2);
-		t = Cyber_colour_table [regno][1];
-		*green  = (t<<10) | (t<<4) | (t>>2);
-		t = Cyber_colour_table [regno][2];
-		*blue   = (t<<10) | (t<<4) | (t>>2);
-	}
-	*transp = 0;
-	return (0);
-}
-
-
-/*
- *    (Un)Blank the screen
- */
-
-void Cyber_blank(int blank)
-{
-	int i;
-
-	if (blank)
-	{
-		for (i = 0; i < 256; i++)
-		{
-			vgawb_3d(0x3c8, (unsigned char) i);
-			vgawb_3d(0x3c9, 0);
-			vgawb_3d(0x3c9, 0);
-			vgawb_3d(0x3c9, 0);
-		}
-	}
-	else
-	{
-		for (i = 0; i < 256; i++)
-		{
-			vgawb_3d(0x3c8, (unsigned char) i);
-			vgawb_3d(0x3c9, Cyber_colour_table[i][0]);
-			vgawb_3d(0x3c9, Cyber_colour_table[i][1]);
-			vgawb_3d(0x3c9, Cyber_colour_table[i][2]);
-		}
-	}
-}
-
-/*
- * CV3D low-level support
- */
-
-#define Cyber3D_WaitQueue(v) \
-{ \
-	 do { \
-		while ((rl_3d(0x8504) & 0x1f00) < (((v)+2) << 8)); \
-	 } \
-	while (0); \
-}
-
-static inline void Cyber3D_WaitBusy(void)
-{
-unsigned long status;
-
-	do {
-		mb();
-		status = rl_3d(0x8504);
-	} while (!(status & (1 << 13)));
-	blit_maybe_busy = 0;
-}
-
-#define S3V_BITBLT	(0x0 << 27)
-#define S3V_RECTFILL	(0x2 << 27)
-#define S3V_AUTOEXE	0x01
-#define S3V_HWCLIP	0x02
-#define S3V_DRAW	0x20
-#define S3V_DST_8BPP	0x00
-#define S3V_DST_16BPP	0x04
-#define S3V_DST_24BPP	0x08
-#define S3V_MONO_PAT	0x100
-
-#define S3V_BLT_COPY	(0xcc<<17)
-#define S3V_BLT_CLEAR	(0x00<<17)
-#define S3V_BLT_SET	(0xff<<17)
-
- /*
-  * BitBLT - Through the Plane
-  */
-
-static void Cyber3D_BitBLT(u_short curx, u_short cury, u_short destx,
-			   u_short desty, u_short width, u_short height, u_short depth)
-{
-	unsigned int blitcmd = S3V_BITBLT | S3V_DRAW | S3V_BLT_COPY;
-
-	switch (depth) {
-#ifdef FBCON_HAS_CFB8
-		case 8 :
-			blitcmd |= S3V_DST_8BPP;
-			break;
-#endif
-#ifdef FBCON_HAS_CFB16
-		case 16 :
-			blitcmd |= S3V_DST_16BPP;
-			break;
-#endif
-	}
-
-	/* Set drawing direction */
-	/* -Y, X maj, -X (default) */
-	if (curx > destx)
-	{
-		blitcmd |= (1 << 25);  /* Drawing direction +X */
-	}
-	else
-	{
-		curx  += (width - 1);
-		destx += (width - 1);
-	}
-
-	if (cury > desty)
-	{
-		blitcmd |= (1 << 26);  /* Drawing direction +Y */
-	}
-	else
-	{
-		cury  += (height - 1);
-		desty += (height - 1);
-	}
-
-	if (blit_maybe_busy)
-		Cyber3D_WaitBusy();
-	blit_maybe_busy = 1;
-
-	wl_3d(0xa4f4, 1); /* pattern fb color */
-
-	wl_3d(0xa4e8, ~0); /* mono pat 0 */
-	wl_3d(0xa4ec, ~0); /* mono pat 1 */
-
-	wl_3d(0xa504, ((width << 16) | height));	/* rwidth_height */
-	wl_3d(0xa508, ((curx << 16)  | cury));		/* rsrc_xy */
-	wl_3d(0xa50c, ((destx << 16) | desty));		/* rdest_xy */
-
-	wl_3d(0xa500, blitcmd);				/* GO! */
-}
-
-/*
- * Rectangle Fill Solid
- */
-
-static void Cyber3D_RectFill(u_short x, u_short y, u_short width,
-			     u_short height, u_short color, u_short depth)
-{
-	unsigned int tmp;
-	unsigned int blitcmd = S3V_RECTFILL | S3V_DRAW |
-		S3V_BLT_CLEAR | S3V_MONO_PAT | (1 << 26) | (1 << 25);
-
-	if (blit_maybe_busy)
-		Cyber3D_WaitBusy();
-	blit_maybe_busy = 1;
-
-	switch (depth) {
-#ifdef FBCON_HAS_CFB8
-		case 8 :
-			blitcmd |= S3V_DST_8BPP;
-			break;
-#endif
-#ifdef FBCON_HAS_CFB16
-		case 16 :
-			blitcmd |= S3V_DST_16BPP;
-			break;
-#endif
-	}
-
-	tmp = color & 0xff;
-	wl_3d(0xa4f4, tmp);
-
-	wl_3d(0xa504, ((width << 16) | height));	/* rwidth_height */
-	wl_3d(0xa50c, ((x << 16) | y));			/* rdest_xy */
-
-	wl_3d(0xa500, blitcmd);				/* GO! */
-}
-
-
-/**************************************************************
- * Move cursor to x, y
- */
-
-#if 0
-static void Cyber_MoveCursor (u_short x, u_short y)
-{
-	printk(KERN_DEBUG "Yuck .... MoveCursor on a 3D\n");
-	return;
-}
-#endif
-
-/* -------------------- Interfaces to hardware functions -------------------- */
-
-
-static struct fb_hwswitch Cyber_switch = {
-	Cyber_init, Cyber_encode_fix, Cyber_decode_var, Cyber_encode_var,
-	Cyber_getcolreg, Cyber_setcolreg, Cyber_blank
-};
-
-
-/* -------------------- Generic routines ------------------------------------ */
-
-
-/*
- *    Fill the hardware's `par' structure.
- */
-
-static void virgefb_get_par(struct virgefb_par *par)
-{
-	if (current_par_valid)
-	{
-		*par = current_par;
-	}
-	else
-	{
-		fbhw->decode_var(&virgefb_default, par);
-	}
-}
-
-
-static void virgefb_set_par(struct virgefb_par *par)
-{
-	current_par = *par;
-	current_par_valid = 1;
-}
-
-
-static void virge_set_video(struct fb_var_screeninfo *var)
-{
-	/* Set clipping rectangle to current screen size */
- 
-	unsigned int clip;
-
-	clip = ((0 << 16) | (var->xres - 1));
-	wl_3d(0xa4dc, clip);
-	clip = ((0 << 16) | (var->yres - 1));
-	wl_3d(0xa4e0, clip);
-}
-
-
-static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive)
-{
-	int err, activate;
-	struct virgefb_par par;
-
-	if ((err = fbhw->decode_var(var, &par)))
-		return(err);
-	activate = var->activate;
-	if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW && isactive)
-		virgefb_set_par(&par);
-	fbhw->encode_var(var, &par);
-	var->activate = activate;
-
-	virge_set_video(var);
-	return 0;
-}
-
-
-static void do_install_cmap(int con, struct fb_info *info)
-{
-	if (con != currcon)
-		return;
-	if (fb_display[con].cmap.len)
-		fb_set_cmap(&fb_display[con].cmap, 1, fbhw->setcolreg, info);
-	else
-		fb_set_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel),
-			    1, fbhw->setcolreg, info);
-}
-
-/*
- *    Get the Fixed Part of the Display
- */
-
-static int virgefb_get_fix(struct fb_fix_screeninfo *fix, int con,
-			   struct fb_info *info)
-{
-	struct virgefb_par par;
-	int error = 0;
-
-	if (con == -1)
-		virgefb_get_par(&par);
-	else
-		error = fbhw->decode_var(&fb_display[con].var, &par);
-	return(error ? error : fbhw->encode_fix(fix, &par));
-}
-
-
-/*
- *    Get the User Defined Part of the Display
- */
-
-static int virgefb_get_var(struct fb_var_screeninfo *var, int con,
-			   struct fb_info *info)
-{
-	struct virgefb_par par;
-	int error = 0;
-
-	if (con == -1)
-	{
-		virgefb_get_par(&par);
-		error = fbhw->encode_var(var, &par);
-		disp.var = *var;   /* ++Andre: don't know if this is the right place */
-	}
-	else
-	{
-		*var = fb_display[con].var;
-	}
-
-	return(error);
-}
-
-
-static void virgefb_set_disp(int con, struct fb_info *info)
-{
-	struct fb_fix_screeninfo fix;
-	struct display *display;
-
-	if (con >= 0)
-		display = &fb_display[con];
-	else
-		display = &disp;	/* used during initialization */
-
-	virgefb_get_fix(&fix, con, info);
-	if (con == -1)
-		con = 0;
-	if (cv3d_on_zorro2) {
-		display->screen_base = (char*) CyberMem;
-	} else {
-	        switch (display->var.bits_per_pixel) {
-			case 8:
-				display->screen_base = (char*) (CyberMem + CYBMEM_OFFSET_8);
-				break;
-			case 16:
-				display->screen_base = (char*) (CyberMem + CYBMEM_OFFSET_16);
-				break;
-		}
-	}
-	display->visual = fix.visual;
-	display->type = fix.type;
-	display->type_aux = fix.type_aux;
-	display->ypanstep = fix.ypanstep;
-	display->ywrapstep = fix.ywrapstep;
-	display->can_soft_blank = 1;
-	display->inverse = Cyberfb_inverse;
-	switch (display->var.bits_per_pixel) {
-#ifdef FBCON_HAS_CFB8
-		case 8:
-			if (display->var.accel_flags & FB_ACCELF_TEXT) {
-		   		display->dispsw = &fbcon_virge8;
-#warning FIXME: We should reinit the graphics engine here
-			} else
-				display->dispsw = &fbcon_cfb8;
-			break;
-#endif
-#ifdef FBCON_HAS_CFB16
-		case 16:
-			if (display->var.accel_flags & FB_ACCELF_TEXT) {
-				display->dispsw = &fbcon_virge16;
-			} else
-				display->dispsw = &fbcon_cfb16;
-			display->dispsw_data = &fbcon_cmap.cfb16;
-			break;
-#endif
-		default:
-			display->dispsw = &fbcon_dummy;
-			break;
-	}
-}
-
-
-/*
- *    Set the User Defined Part of the Display
- */
-
-static int virgefb_set_var(struct fb_var_screeninfo *var, int con,
-			   struct fb_info *info)
-{
-	int err, oldxres, oldyres, oldvxres, oldvyres, oldbpp, oldaccel;
-
-	if ((err = do_fb_set_var(var, con == currcon)))
-		return(err);
-	if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
-		oldxres = fb_display[con].var.xres;
-		oldyres = fb_display[con].var.yres;
-		oldvxres = fb_display[con].var.xres_virtual;
-		oldvyres = fb_display[con].var.yres_virtual;
-		oldbpp = fb_display[con].var.bits_per_pixel;
-		oldaccel = fb_display[con].var.accel_flags;
-		fb_display[con].var = *var;
-		if (oldxres != var->xres || oldyres != var->yres ||
-		    oldvxres != var->xres_virtual ||
-		    oldvyres != var->yres_virtual ||
-		    oldbpp != var->bits_per_pixel ||
-		    oldaccel != var->accel_flags) {
-			virgefb_set_disp(con, info);
-			(*fb_info.changevar)(con);
-			fb_alloc_cmap(&fb_display[con].cmap, 0, 0);
-			do_install_cmap(con, info);
-		}
-	}
-	var->activate = 0;
-	return(0);
-}
-
-
-/*
- *    Get the Colormap
- */
-
-static int virgefb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
-			    struct fb_info *info)
-{
-	if (con == currcon) /* current console? */
-		return(fb_get_cmap(cmap, kspc, fbhw->getcolreg, info));
-	else if (fb_display[con].cmap.len) /* non default colormap? */
-		fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2);
-	else
-		fb_copy_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel),
-			     cmap, kspc ? 0 : 2);
-	return(0);
-}
-
-
-/*
- *    Set the Colormap
- */
-
-static int virgefb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
-			    struct fb_info *info)
-{
-	int err;
-
-	if (!fb_display[con].cmap.len) {       /* no colormap allocated? */
-		if ((err = fb_alloc_cmap(&fb_display[con].cmap,
-				1<<fb_display[con].var.bits_per_pixel, 0)))
-			return(err);
-	}
-	if (con == currcon)		 /* current console? */
-		return(fb_set_cmap(cmap, kspc, fbhw->setcolreg, info));
-	else
-		fb_copy_cmap(cmap, &fb_display[con].cmap, kspc ? 0 : 1);
-	return(0);
-}
-
-
-static struct fb_ops virgefb_ops = {
-	owner:		THIS_MODULE,
-	fb_get_fix:	virgefb_get_fix,
-	fb_get_var:	virgefb_get_var,
-	fb_set_var:	virgefb_set_var,
-	fb_get_cmap:	virgefb_get_cmap,
-	fb_set_cmap:	virgefb_set_cmap,
-};
-
-
-int __init virgefb_setup(char *options)
-{
-	char *this_opt;
-
-	fb_info.fontname[0] = '\0';
-
-	if (!options || !*options)
-		return 0;
-
-	while ((this_opt = strsep(&options, ",")) != NULL) {
-		if (!*this_opt)
-			continue;
-		if (!strcmp(this_opt, "inverse")) {
-			Cyberfb_inverse = 1;
-			fb_invert_cmaps();
-		} else if (!strncmp(this_opt, "font:", 5))
-			strcpy(fb_info.fontname, this_opt+5);
-		else if (!strcmp (this_opt, "virge8")){
-			virgefb_default = virgefb_predefined[VIRGE8_DEFMODE].var;
-		}
-		else if (!strcmp (this_opt, "virge16")){
-			virgefb_default = virgefb_predefined[VIRGE16_DEFMODE].var;
-		}
-		else
-			get_video_mode(this_opt);
-	}
-
-	DPRINTK("default mode: xres=%d, yres=%d, bpp=%d\n",virgefb_default.xres,
-                                                           virgefb_default.yres,
-		                                           virgefb_default.bits_per_pixel);
-	return 0;
-}
-
-
-/*
- *    Initialization
- */
-
-int __init virgefb_init(void)
-{
-	struct virgefb_par par;
-	unsigned long board_addr, ramsize;
-	struct zorro_dev *z = NULL;
-
-	while ((z = zorro_find_device(ZORRO_PROD_PHASE5_CYBERVISION64_3D, z))) {
-	    board_addr = z->resource.start;
-	    if (board_addr < 0x01000000) {
-		/*
-		 * Ok we got the board running in Z2 space.
-		 */
-		 CyberRegs_phys = (unsigned long)(board_addr + 0x003e0000);
-		 CyberMem_phys = board_addr;
-		 ramsize = 0x00380000;
-	    } else {
-		CyberRegs_phys = board_addr + 0x05000000;
-		CyberMem_phys  = board_addr + 0x04000000;	/* was 0x04800000 */
-		ramsize = 0x00400000;
-	    }
-	    if (!request_mem_region(CyberRegs_phys, 0x10000, "S3 ViRGE"))
-		continue;
-	    if (!request_mem_region(CyberMem_phys, ramsize, "RAM")) {
-		release_mem_region(CyberRegs_phys, 0x10000);
-		continue;
-	    }
-
-	    if (board_addr < 0x01000000) {
-		/*
-		 * Ok we got the board running in Z2 space.
-		 */
-
-		CyberMem = ZTWO_VADDR(CyberMem_phys);
-		CyberVGARegs = (unsigned long) \
-			ZTWO_VADDR(board_addr + 0x003c0000);
-		CyberRegs = (unsigned char *)ZTWO_VADDR(CyberRegs_phys);
-		Cyber_register_base = (unsigned long) \
-			ZTWO_VADDR(board_addr + 0x003c8000);
-		Cyber_vcode_switch_base = (unsigned long) \
-			ZTWO_VADDR(board_addr + 0x003a0000);
-		cv3d_on_zorro2 = 1;
-		printk(KERN_INFO "CV3D detected running in Z2 mode.\n");
-	    } else {
-		CyberVGARegs = (unsigned long)ioremap(board_addr+0x0c000000, 0x00010000);
-		CyberRegs = ioremap(CyberRegs_phys, 0x00010000);
-		CyberMem = (unsigned long)ioremap(CyberMem_phys, 0x01000000);	/* was 0x00400000 */
-		cv3d_on_zorro2 = 0;
-		printk(KERN_INFO "CV3D detected running in Z3 mode.\n");
-	    }
-
-	    fbhw = &Cyber_switch;
-
-	    strcpy(fb_info.modename, virgefb_name);
-	    fb_info.changevar = NULL;
-	    fb_info.node = -1;
-	    fb_info.fbops = &virgefb_ops;
-	    fb_info.disp = &disp;
-	    fb_info.switch_con = &Cyberfb_switch;
-	    fb_info.updatevar = &Cyberfb_updatevar;
-	    fb_info.blank = &Cyberfb_blank;
-	    fb_info.flags = FBINFO_FLAG_DEFAULT;
-
-	    fbhw->init();
-	    fbhw->decode_var(&virgefb_default, &par);
-	    fbhw->encode_var(&virgefb_default, &par);
-
-	    do_fb_set_var(&virgefb_default, 1);
-	    virgefb_get_var(&fb_display[0].var, -1, &fb_info);
-	    virgefb_set_disp(-1, &fb_info);
-	    do_install_cmap(0, &fb_info);
-
-	    if (register_framebuffer(&fb_info) < 0) {
-		printk(KERN_ERR "virgefb.c: register_framebuffer failed\n");
-		return -EINVAL;
-	    }
-
-	    printk(KERN_INFO "fb%d: %s frame buffer device, using %ldK of "
-		   "video memory\n", GET_FB_IDX(fb_info.node),
-		   fb_info.modename, CyberSize>>10);
-
-	    /* TODO: This driver cannot be unloaded yet */
-	    MOD_INC_USE_COUNT;
-	    return 0;
-	}
-	return -ENODEV;
-}
-
-
-static int Cyberfb_switch(int con, struct fb_info *info)
-{
-	/* Do we have to save the colormap? */
-	if (fb_display[currcon].cmap.len)
-		fb_get_cmap(&fb_display[currcon].cmap, 1, fbhw->getcolreg,
-			    info);
-
-	do_fb_set_var(&fb_display[con].var, 1);
-	currcon = con;
-	/* Install new colormap */
-	do_install_cmap(con, info);
-	return(0);
-}
-
-
-/*
- *    Update the `var' structure (called by fbcon.c)
- *
- *    This call looks only at yoffset and the FB_VMODE_YWRAP flag in `var'.
- *    Since it's called by a kernel driver, no range checking is done.
- */
-
-static int Cyberfb_updatevar(int con, struct fb_info *info)
-{
-	return(0);
-}
-
-
-/*
- *    Blank the display.
- */
-
-static void Cyberfb_blank(int blank, struct fb_info *info)
-{
-	fbhw->blank(blank);
-}
-
-
-/*
- *    Get a Video Mode
- */
-
-static int __init get_video_mode(const char *name)
-{
-	int i;
-
-	for (i = 0; i < NUM_TOTAL_MODES; i++) {
-		if (!strcmp(name, virgefb_predefined[i].name)) {
-			virgefb_default = virgefb_predefined[i].var;
-			return(i);
-		}
-	}
-	/* ++Andre: set virgefb default mode */
-	virgefb_default = virgefb_predefined[VIRGE8_DEFMODE].var;
-	return(0);
-}
-
-
-/*
- *    Text console acceleration
- */
-
-#ifdef FBCON_HAS_CFB8
-static void fbcon_virge8_bmove(struct display *p, int sy, int sx, int dy,
-			       int dx, int height, int width)
-{
-        sx *= 8; dx *= 8; width *= 8;
-        Cyber3D_BitBLT((u_short)sx, (u_short)(sy*fontheight(p)), (u_short)dx,
-                       (u_short)(dy*fontheight(p)), (u_short)width,
-                       (u_short)(height*fontheight(p)), 8);
-}
-
-static void fbcon_virge8_clear(struct vc_data *conp, struct display *p, int sy,
-			       int sx, int height, int width)
-{
-        unsigned char bg;
-
-        sx *= 8; width *= 8;
-        bg = attr_bgcol_ec(p,conp);
-        Cyber3D_RectFill((u_short)sx, (u_short)(sy*fontheight(p)),
-                         (u_short)width, (u_short)(height*fontheight(p)),
-                         (u_short)bg, 8);
-}
-
-static void fbcon_virge8_putc(struct vc_data *conp, struct display *p, int c, int yy,
-                              int xx)
-{
-	if (blit_maybe_busy)
-		Cyber3D_WaitBusy();
-	fbcon_cfb8_putc(conp, p, c, yy, xx);
-}
-
-static void fbcon_virge8_putcs(struct vc_data *conp, struct display *p,
-                      const unsigned short *s, int count, int yy, int xx)
-{
-	if (blit_maybe_busy)
-		Cyber3D_WaitBusy();
-	fbcon_cfb8_putcs(conp, p, s, count, yy, xx);
-}
-
-static void fbcon_virge8_revc(struct display *p, int xx, int yy)
-{
-	if (blit_maybe_busy)
-		Cyber3D_WaitBusy();
-	fbcon_cfb8_revc(p, xx, yy);
-}
-
-static void fbcon_virge8_clear_margins(struct vc_data *conp, struct display *p,
-                              int bottom_only)
-{
-	if (blit_maybe_busy)
-		Cyber3D_WaitBusy();
-	fbcon_cfb8_clear_margins(conp, p, bottom_only);
-}
-
-static struct display_switch fbcon_virge8 = {
-   setup:		fbcon_cfb8_setup,
-   bmove:		fbcon_virge8_bmove,
-   clear:		fbcon_virge8_clear,
-   putc:		fbcon_virge8_putc,
-   putcs:		fbcon_virge8_putcs,
-   revc:		fbcon_virge8_revc,
-   clear_margins:	fbcon_virge8_clear_margins,
-   fontwidthmask:	FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
-};
-#endif
-
-#ifdef FBCON_HAS_CFB16
-static void fbcon_virge16_bmove(struct display *p, int sy, int sx, int dy,
-                               int dx, int height, int width)
-{
-        sx *= 8; dx *= 8; width *= 8;
-        Cyber3D_BitBLT((u_short)sx, (u_short)(sy*fontheight(p)), (u_short)dx,
-                       (u_short)(dy*fontheight(p)), (u_short)width,
-                       (u_short)(height*fontheight(p)), 16);
-}
-                
-static void fbcon_virge16_clear(struct vc_data *conp, struct display *p, int sy,
-                               int sx, int height, int width)
-{
-        unsigned char bg;   
-                
-        sx *= 8; width *= 8;
-        bg = attr_bgcol_ec(p,conp);
-        Cyber3D_RectFill((u_short)sx, (u_short)(sy*fontheight(p)),
-                         (u_short)width, (u_short)(height*fontheight(p)),
-                         (u_short)bg, 16);
-}
-   
-static void fbcon_virge16_putc(struct vc_data *conp, struct display *p, int c, int yy,
-                              int xx)
-{
-	if (blit_maybe_busy)
-		Cyber3D_WaitBusy();
-	fbcon_cfb16_putc(conp, p, c, yy, xx);
-}
-
-static void fbcon_virge16_putcs(struct vc_data *conp, struct display *p,
-                      const unsigned short *s, int count, int yy, int xx)
-{
-	if (blit_maybe_busy)
-		Cyber3D_WaitBusy();
-	fbcon_cfb16_putcs(conp, p, s, count, yy, xx);
-}
-
-static void fbcon_virge16_revc(struct display *p, int xx, int yy)
-{
-	if (blit_maybe_busy)
-		Cyber3D_WaitBusy();
-	fbcon_cfb16_revc(p, xx, yy);
-}
-
-static void fbcon_virge16_clear_margins(struct vc_data *conp, struct display *p,
-                              int bottom_only)
-{
-	if (blit_maybe_busy)
-		Cyber3D_WaitBusy();
-	fbcon_cfb16_clear_margins(conp, p, bottom_only);
-}
-
-static struct display_switch fbcon_virge16 = {
-   setup:		fbcon_cfb16_setup,
-   bmove:		fbcon_virge16_bmove,
-   clear:		fbcon_virge16_clear,
-   putc:		fbcon_virge16_putc,
-   putcs:		fbcon_virge16_putcs,
-   revc:		fbcon_virge16_revc,
-   clear_margins:	fbcon_virge16_clear_margins,
-   fontwidthmask:	FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
-};
-#endif
-
-#ifdef MODULE
-MODULE_LICENSE("GPL");
-
-int init_module(void)
-{
-	return virgefb_init();
-}
-
-void cleanup_module(void)
-{
-	/* Not reached because the usecount will never be
-	   decremented to zero */
-	unregister_framebuffer(&fb_info);
-	/* TODO: clean up ... */
-}
-#endif /* MODULE */
+/*
+ * linux/drivers/video/virgefb.c -- CyberVision64/3D frame buffer device
+ *
+ *    Copyright (C) 1997 André Heynatz
+ *
+ *
+ * This file is based on the CyberVision frame buffer device (cyberfb.c):
+ *
+ *    Copyright (C) 1996 Martin Apel
+ *                       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.
+ */
+
+#undef VIRGEFBDEBUG
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/zorro.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <asm/irq.h>
+#include <asm/pgtable.h>
+#include <asm/amigahw.h>
+#include <asm/io.h>
+
+#include <video/s3blit.h>
+#include <video/fbcon.h>
+#include <video/fbcon-cfb8.h>
+#include <video/fbcon-cfb16.h>
+
+
+#ifdef VIRGEFBDEBUG
+#define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
+#else
+#define DPRINTK(fmt, args...)
+#endif
+
+#if 1
+#define vgawb_3d(reg,dat) \
+	if (cv3d_on_zorro2) { \
+	*((unsigned char volatile *)((Cyber_vcode_switch_base) + 0x04)) = \
+	(0x01 & 0xffff); asm volatile ("nop"); \
+	} \
+	(*((unsigned char *)(CyberVGARegs + (reg ^ 3))) = dat); \
+	if (cv3d_on_zorro2) { \
+	*((unsigned char volatile *)((Cyber_vcode_switch_base) + 0x04)) = \
+	(0x02 & 0xffff); asm volatile ("nop"); \
+	}
+#define vgaww_3d(reg,dat) \
+                (*((unsigned word *)(CyberVGARegs + (reg ^ 2))) = swab16(dat))
+#define vgawl_3d(reg,dat) \
+                (*((unsigned long *)(CyberVGARegs + reg)) = swab32(dat))
+#else
+     /*
+      * Dunno why this doesn't work at the moment - we'll have to look at
+      * it later.
+      */
+#define vgawb_3d(reg,dat) \
+                (*((unsigned char *)(CyberRegs + 0x8000 + reg)) = dat)
+#define vgaww_3d(reg,dat) \
+                (*((unsigned word *)(CyberRegs + 0x8000 + reg)) = dat)
+#define vgawl_3d(reg,dat) \
+                (*((unsigned long *)(CyberRegs + 0x8000 + reg)) = dat)
+#endif
+
+     /*
+      * We asume P5 mapped the big-endian version of these registers.
+      */
+#define wb_3d(reg,dat) \
+                (*((unsigned char volatile *)(CyberRegs + reg)) = dat)
+#define ww_3d(reg,dat) \
+                (*((unsigned word volatile *)(CyberRegs + reg)) = dat)
+#define wl_3d(reg,dat) \
+                (*((unsigned long volatile *)(CyberRegs + reg)) = dat)
+#define rl_3d(reg) \
+                (*((unsigned long volatile *)(CyberRegs + reg)))
+
+#define Select_Zorro2_FrameBuffer(flag) \
+	do { \
+		*((unsigned char volatile *)((Cyber_vcode_switch_base) + 0x08)) = \
+		((flag * 0x40) & 0xffff); asm volatile ("nop"); \
+	} while (0)
+/*
+ *	may be needed when we initialize the board?
+ *	8bit: flag = 2, 16 bit: flag = 1, 24/32bit: flag = 0 
+ *	_when_ the board is initialized, depth doesnt matter, we allways write
+ *	to the same address, aperture seems not to matter on Z2.
+ */
+
+struct virgefb_par {
+   int xres;
+   int yres;
+   int bpp;
+   int accel;
+};
+
+static struct virgefb_par current_par;
+
+static int current_par_valid = 0;
+static int currcon = 0;
+
+static struct display disp;
+static struct fb_info fb_info;
+
+static union {
+#ifdef FBCON_HAS_CFB16
+    u16 cfb16[16];
+#endif
+} fbcon_cmap;
+
+/*
+ *    Switch for Chipset Independency
+ */
+
+static struct fb_hwswitch {
+
+   /* Initialisation */
+
+   int (*init)(void);
+
+   /* Display Control */
+
+   int (*encode_fix)(struct fb_fix_screeninfo *fix, struct virgefb_par *par);
+   int (*decode_var)(struct fb_var_screeninfo *var, struct virgefb_par *par);
+   int (*encode_var)(struct fb_var_screeninfo *var, struct virgefb_par *par);
+   int (*getcolreg)(u_int regno, u_int *red, u_int *green, u_int *blue,
+                    u_int *transp, struct fb_info *info);
+   int (*setcolreg)(u_int regno, u_int red, u_int green, u_int blue,
+                    u_int transp, struct fb_info *info);
+   void (*blank)(int blank);
+} *fbhw;
+
+static int blit_maybe_busy = 0;
+
+/*
+ *    Frame Buffer Name
+ */
+
+static char virgefb_name[16] = "Cybervision/3D";
+
+
+/*
+ *    Cybervision Graphics Board
+ */
+
+#define VIRGE8_WIDTH 1152
+#define VIRGE8_HEIGHT 886
+#define VIRGE8_PIXCLOCK 12500    /* ++Geert: Just a guess */
+
+#if 1
+#define VIRGE16_WIDTH 800
+#define VIRGE16_HEIGHT 600
+#endif
+#define VIRGE16_PIXCLOCK 25000   /* ++Geert: Just a guess */
+
+
+static unsigned char Cyber_colour_table [256][3];
+static unsigned long CyberMem;
+static unsigned long CyberSize;
+static volatile char *CyberRegs;
+static volatile unsigned long CyberVGARegs; /* ++Andre: for CV64/3D, see macros at the beginning */
+static unsigned long CyberMem_phys;
+static unsigned long CyberRegs_phys;
+static unsigned long Cyber_register_base;
+static unsigned long Cyber_vcode_switch_base;
+static unsigned char cv3d_on_zorro2;
+ 
+#define CYBMEM_OFFSET_8  0x800000	/* offsets from start of video - */ 
+#define CYBMEM_OFFSET_16 0x400000	/* ram to appropriate aperture */
+
+/*
+ *    Predefined Video Modes
+ */
+
+static struct {
+    const char *name;
+    struct fb_var_screeninfo var;
+} virgefb_predefined[] __initdata = {
+    {
+	"640x480-8", {		/* Cybervision 8 bpp */
+	    640, 480, 640, 480, 0, 0, 8, 0,
+	    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE8_PIXCLOCK, 64, 96, 35, 12, 112, 2,
+	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+	}
+    }, {
+	"800x600-8", {		/* Cybervision 8 bpp */
+	    800, 600, 800, 600, 0, 0, 8, 0,
+	    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE8_PIXCLOCK, 64, 96, 35, 12, 112, 2,
+	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+	}
+    }, {
+	"1024x768-8", {		/* Cybervision 8 bpp */
+	    1024, 768, 1024, 768, 0, 0, 8, 0,
+	    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE8_PIXCLOCK, 64, 96, 35, 12, 112, 2,
+	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+	}
+    }, {
+	"1152x886-8", {		/* Cybervision 8 bpp */
+	    1152, 886, 1152, 886, 0, 0, 8, 0,
+	    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE8_PIXCLOCK, 64, 96, 35, 12, 112, 2,
+	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+	}
+    }, {
+	"1280x1024-8", {	/* Cybervision 8 bpp */
+	    1280, 1024, 1280, 1024, 0, 0, 8, 0,
+	    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE8_PIXCLOCK, 64, 96, 35, 12, 112, 2,
+	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+	}
+    }, {
+	"1600x1200-8", {	/* Cybervision 8 bpp */
+	    1600, 1200, 1600, 1200, 0, 0, 8, 0,
+	    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE8_PIXCLOCK, 64, 96, 35, 12, 112, 2,
+	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+	}
+    }, {
+	"640x480-16", {		/* Cybervision 16 bpp */
+	    640, 480, 640, 480, 0, 0, 16, 0,
+	    {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
+	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE16_PIXCLOCK, 64, 96, 35, 12, 112, 2,
+	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+	}
+    }, {
+	"800x600-16", {		/* Cybervision 16 bpp */
+	    800, 600, 800, 600, 0, 0, 16, 0,
+	    {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
+	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE16_PIXCLOCK, 64, 96, 35, 12, 112, 2,
+	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+	}
+    }, {
+	"1024x768-16", {         /* Cybervision 16 bpp */
+	    1024, 768, 1024, 768, 0, 0, 16, 0,
+	    {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
+	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE16_PIXCLOCK, 64, 96, 35, 12, 112, 2,
+	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+       }
+    }, {
+	"1152x886-16", {         /* Cybervision 16 bpp */
+	    1152, 886, 1152, 886, 0, 0, 16, 0,
+	    {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
+	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE16_PIXCLOCK, 64, 96, 35, 12, 112, 2,
+	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+       }
+    }, {
+	"1280x1024-16", {         /* Cybervision 16 bpp */
+	    1280, 1024, 1280, 1024, 0, 0, 16, 0,
+	    {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
+	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE16_PIXCLOCK, 64, 96, 35, 12, 112, 2,
+	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+       }
+    }, {
+	"1600x1200-16", {         /* Cybervision 16 bpp */
+	    1600, 1200, 1600, 1200, 0, 0, 16, 0,
+	    {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
+	    0, 0, -1, -1, FB_ACCELF_TEXT, VIRGE16_PIXCLOCK, 64, 96, 35, 12, 112, 2,
+	    FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+       }
+    }
+};
+
+
+#define NUM_TOTAL_MODES    ARRAY_SIZE(virgefb_predefined)
+
+
+static int Cyberfb_inverse = 0;
+
+/*
+ *    Some default modes
+ */
+
+#define VIRGE8_DEFMODE     (1)
+#define VIRGE16_DEFMODE    (7)
+
+static struct fb_var_screeninfo virgefb_default;
+
+
+/*
+ *    Interface used by the world
+ */
+
+int virgefb_setup(char*);
+
+static int virgefb_get_fix(struct fb_fix_screeninfo *fix, int con, struct
+fb_info *info);
+static int virgefb_get_var(struct fb_var_screeninfo *var, int con, struct
+fb_info *info);
+static int virgefb_set_var(struct fb_var_screeninfo *var, int con, struct
+fb_info *info);
+static int virgefb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
+			    struct fb_info *info);
+static int virgefb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
+			    struct fb_info *info);
+
+
+/*
+ *    Interface to the low level console driver
+ */
+
+int virgefb_init(void);
+static int Cyberfb_switch(int con, struct fb_info *info);
+static int Cyberfb_updatevar(int con, struct fb_info *info);
+static void Cyberfb_blank(int blank, struct fb_info *info);
+
+
+/*
+ *    Text console acceleration
+ */
+
+#ifdef FBCON_HAS_CFB8
+static struct display_switch fbcon_virge8;
+#endif
+
+#ifdef FBCON_HAS_CFB16
+static struct display_switch fbcon_virge16;
+#endif
+
+/*
+ *   Hardware Specific Routines
+ */
+
+static int Cyber_init(void);
+static int Cyber_encode_fix(struct fb_fix_screeninfo *fix,
+                          struct virgefb_par *par);
+static int Cyber_decode_var(struct fb_var_screeninfo *var,
+                          struct virgefb_par *par);
+static int Cyber_encode_var(struct fb_var_screeninfo *var,
+                          struct virgefb_par *par);
+static int Cyber_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
+                         u_int *transp, struct fb_info *info);
+static int Cyber_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+                         u_int transp, struct fb_info *info);
+static void Cyber_blank(int blank);
+
+
+/*
+ *    Internal routines
+ */
+
+static void virgefb_get_par(struct virgefb_par *par);
+static void virgefb_set_par(struct virgefb_par *par);
+static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive);
+static void do_install_cmap(int con, struct fb_info *info);
+static void virgefb_set_disp(int con, struct fb_info *info);
+static int get_video_mode(const char *name);
+
+
+/* -------------------- Hardware specific routines ------------------------- */
+
+
+/*
+ *    Initialization
+ *
+ *    Set the default video mode for this chipset. If a video mode was
+ *    specified on the command line, it will override the default mode.
+ */
+
+static int Cyber_init(void)
+{
+	int i;
+
+	for (i = 0; i < 256; i++)
+	{
+		Cyber_colour_table [i][0] = i;
+		Cyber_colour_table [i][1] = i;
+		Cyber_colour_table [i][2] = i;
+	}
+
+	/*
+	 * Just clear the thing for the biggest mode.
+	 *
+	 * ++Andre, TODO: determine size first, then clear all memory
+	 *                (the 3D penguin might need texture memory :-) )
+	 */
+
+	if (cv3d_on_zorro2) {
+		CyberSize = 0x00380000; /* 3.5 MB , we need some space for the registers? */
+	} else {
+		CyberSize = 0x00400000; /* 4 MB */
+	}
+
+	memset ((char*)CyberMem, 0, CyberSize);
+
+	/* Disable hardware cursor */
+	vgawb_3d(0x3c8, 255);
+	vgawb_3d(0x3c9, 56);
+	vgawb_3d(0x3c9, 100);
+	vgawb_3d(0x3c9, 160);
+
+	vgawb_3d(0x3c8, 254);
+	vgawb_3d(0x3c9, 0);
+	vgawb_3d(0x3c9, 0);
+	vgawb_3d(0x3c9, 0);
+
+	/* Disable hardware cursor */
+	vgawb_3d(S3_CRTC_ADR, S3_REG_LOCK2);
+	vgawb_3d(S3_CRTC_DATA, 0xa0);
+	vgawb_3d(S3_CRTC_ADR, S3_HGC_MODE);
+	vgawb_3d(S3_CRTC_DATA, 0x00);
+	vgawb_3d(S3_CRTC_ADR, S3_HWGC_DX);
+	vgawb_3d(S3_CRTC_DATA, 0x00);
+	vgawb_3d(S3_CRTC_ADR, S3_HWGC_DY);
+	vgawb_3d(S3_CRTC_DATA, 0x00);
+
+	return 0; /* TODO: hardware cursor for CV64/3D */
+}
+
+
+/*
+ *    This function should fill in the `fix' structure based on the
+ *    values in the `par' structure.
+ */
+
+static int Cyber_encode_fix(struct fb_fix_screeninfo *fix,
+			    struct virgefb_par *par)
+{
+	memset(fix, 0, sizeof(struct fb_fix_screeninfo));
+	strcpy(fix->id, virgefb_name);
+	if (cv3d_on_zorro2) {
+		fix->smem_start = CyberMem_phys;
+	} else {
+		switch (par->bpp) {
+			case 8:
+				fix->smem_start = (CyberMem_phys + CYBMEM_OFFSET_8);
+				break;
+			case 16:
+				fix->smem_start = (CyberMem_phys + CYBMEM_OFFSET_16);
+				break;
+		}
+	}
+	fix->smem_len = CyberSize;
+	fix->mmio_start = CyberRegs_phys;
+	fix->mmio_len = 0x10000; /* TODO: verify this for the CV64/3D */
+
+	fix->type = FB_TYPE_PACKED_PIXELS;
+	fix->type_aux = 0;
+	if (par->bpp == 8)
+		fix->visual = FB_VISUAL_PSEUDOCOLOR;
+	else
+		fix->visual = FB_VISUAL_TRUECOLOR;
+
+	fix->xpanstep = 0;
+	fix->ypanstep = 0;
+	fix->ywrapstep = 0;
+	fix->line_length = 0;
+	fix->accel = FB_ACCEL_S3_VIRGE;
+	return(0);
+}
+
+
+/*
+ *    Get the video params out of `var'. If a value doesn't fit, round
+ *    it up, if it's too big, return -EINVAL.
+ */
+
+static int Cyber_decode_var(struct fb_var_screeninfo *var,
+			    struct virgefb_par *par)
+{
+#if 1
+	par->xres = var->xres;
+	par->yres = var->yres;
+	par->bpp = var->bits_per_pixel;
+	if (var->accel_flags & FB_ACCELF_TEXT)
+	    par->accel = FB_ACCELF_TEXT;
+	else
+	    par->accel = 0;
+#else
+	if (Cyberfb_Cyber8) {
+		par->xres = VIRGE8_WIDTH;
+		par->yres = VIRGE8_HEIGHT;
+		par->bpp = 8;
+	} else {
+		par->xres = VIRGE16_WIDTH;
+		par->yres = VIRGE16_HEIGHT;
+		par->bpp = 16;
+	}
+#endif
+	return(0);
+}
+
+
+/*
+ *    Fill the `var' structure based on the values in `par' and maybe
+ *    other values read out of the hardware.
+ */
+
+static int Cyber_encode_var(struct fb_var_screeninfo *var,
+			    struct virgefb_par *par)
+{
+	memset(var, 0, sizeof(struct fb_var_screeninfo));
+	var->xres = par->xres;
+	var->yres = par->yres;
+	var->xres_virtual = par->xres;
+	var->yres_virtual = par->yres;
+	var->xoffset = 0;
+	var->yoffset = 0;
+
+	var->bits_per_pixel = par->bpp;
+	var->grayscale = 0;
+
+	switch (var->bits_per_pixel) {
+		case 8:		/* CLUT */
+			var->red.offset = 0;
+			var->red.length = 6;
+			var->red.msb_right = 0;
+			var->blue = var->green = var->red;
+			break;
+		case 16:	/* RGB 565 */
+			var->red.offset = 11;
+			var->red.length = 5;
+			var->green.offset = 5;
+			var->green.length = 6;
+			var->blue.offset = 0;
+			var->blue.length = 5;
+			var->transp.offset = 0;
+			var->transp.length = 0;
+			break;
+	}
+	var->red.msb_right = 0;
+	var->green.msb_right = 0;
+	var->blue.msb_right = 0;
+	var->transp.msb_right = 0;
+
+	var->nonstd = 0;
+	var->activate = 0;
+
+	var->height = -1;
+	var->width = -1;
+
+ 	var->accel_flags = (par->accel &&
+		((par->bpp == 8) || (par->bpp == 16))) ? FB_ACCELF_TEXT : 0;
+
+/*	printk("CV64/3D : %s\n",(var->accel_flags ? "accel" : "no accel")); */
+
+	var->vmode = FB_VMODE_NONINTERLACED;
+
+	/* Dummy values */
+
+	if (par->bpp == 8)
+		var->pixclock = VIRGE8_PIXCLOCK;
+	else
+		var->pixclock = VIRGE16_PIXCLOCK;
+	var->sync = 0;
+	var->left_margin = 64;
+	var->right_margin = 96;
+	var->upper_margin = 35;
+	var->lower_margin = 12;
+	var->hsync_len = 112;
+	var->vsync_len = 2;
+
+	return(0);
+}
+
+
+/*
+ *    Set a single color register. The values supplied are already
+ *    rounded down to the hardware's capabilities (according to the
+ *    entries in the var structure). Return != 0 for invalid regno.
+ */
+
+static int Cyber_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+			   u_int transp, struct fb_info *info)
+{
+	if (((current_par.bpp==8) && (regno>255)) ||
+		((current_par.bpp!=8) && (regno>15)))
+			return (1);
+
+	if (((current_par.bpp==8) && (regno<256)) || ((current_par.bpp==16) &&(regno<16))) {
+		Cyber_colour_table [regno][0] = red >> 10;
+		Cyber_colour_table [regno][1] = green >> 10;
+		Cyber_colour_table [regno][2] = blue >> 10;
+	}
+
+	switch (current_par.bpp) {
+#ifdef FBCON_HAS_CFB8
+		case 8:
+			vgawb_3d(0x3c8, (unsigned char) regno);
+			vgawb_3d(0x3c9, ((unsigned char) (red >> 10)));
+			vgawb_3d(0x3c9, ((unsigned char) (green >> 10)));
+			vgawb_3d(0x3c9, ((unsigned char) (blue >> 10)));
+			break;
+#endif
+#ifdef FBCON_HAS_CFB16
+		case 16:
+			fbcon_cmap.cfb16[regno] =
+				((red  & 0xf800) |
+				((green & 0xfc00) >> 5) |
+				((blue  & 0xf800) >> 11));
+			break;
+#endif
+	}
+	return (0);
+}
+
+
+/*
+ *    Read a single color register and split it into
+ *    colors/transparent. Return != 0 for invalid regno.
+ */
+
+static int Cyber_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
+			   u_int *transp, struct fb_info *info)
+{
+	int t;
+
+	if (regno > 255)
+		return (1);
+
+	if (((current_par.bpp==8) && (regno<256)) || ((current_par.bpp==16) && (regno<16))) {
+
+		t = Cyber_colour_table [regno][0];
+		*red    = (t<<10) | (t<<4) | (t>>2);
+		t = Cyber_colour_table [regno][1];
+		*green  = (t<<10) | (t<<4) | (t>>2);
+		t = Cyber_colour_table [regno][2];
+		*blue   = (t<<10) | (t<<4) | (t>>2);
+	}
+	*transp = 0;
+	return (0);
+}
+
+
+/*
+ *    (Un)Blank the screen
+ */
+
+void Cyber_blank(int blank)
+{
+	int i;
+
+	if (blank)
+	{
+		for (i = 0; i < 256; i++)
+		{
+			vgawb_3d(0x3c8, (unsigned char) i);
+			vgawb_3d(0x3c9, 0);
+			vgawb_3d(0x3c9, 0);
+			vgawb_3d(0x3c9, 0);
+		}
+	}
+	else
+	{
+		for (i = 0; i < 256; i++)
+		{
+			vgawb_3d(0x3c8, (unsigned char) i);
+			vgawb_3d(0x3c9, Cyber_colour_table[i][0]);
+			vgawb_3d(0x3c9, Cyber_colour_table[i][1]);
+			vgawb_3d(0x3c9, Cyber_colour_table[i][2]);
+		}
+	}
+}
+
+/*
+ * CV3D low-level support
+ */
+
+#define Cyber3D_WaitQueue(v) \
+{ \
+	 do { \
+		while ((rl_3d(0x8504) & 0x1f00) < (((v)+2) << 8)); \
+	 } \
+	while (0); \
+}
+
+static inline void Cyber3D_WaitBusy(void)
+{
+unsigned long status;
+
+	do {
+		mb();
+		status = rl_3d(0x8504);
+	} while (!(status & (1 << 13)));
+	blit_maybe_busy = 0;
+}
+
+#define S3V_BITBLT	(0x0 << 27)
+#define S3V_RECTFILL	(0x2 << 27)
+#define S3V_AUTOEXE	0x01
+#define S3V_HWCLIP	0x02
+#define S3V_DRAW	0x20
+#define S3V_DST_8BPP	0x00
+#define S3V_DST_16BPP	0x04
+#define S3V_DST_24BPP	0x08
+#define S3V_MONO_PAT	0x100
+
+#define S3V_BLT_COPY	(0xcc<<17)
+#define S3V_BLT_CLEAR	(0x00<<17)
+#define S3V_BLT_SET	(0xff<<17)
+
+ /*
+  * BitBLT - Through the Plane
+  */
+
+static void Cyber3D_BitBLT(u_short curx, u_short cury, u_short destx,
+			   u_short desty, u_short width, u_short height, u_short depth)
+{
+	unsigned int blitcmd = S3V_BITBLT | S3V_DRAW | S3V_BLT_COPY;
+
+	switch (depth) {
+#ifdef FBCON_HAS_CFB8
+		case 8 :
+			blitcmd |= S3V_DST_8BPP;
+			break;
+#endif
+#ifdef FBCON_HAS_CFB16
+		case 16 :
+			blitcmd |= S3V_DST_16BPP;
+			break;
+#endif
+	}
+
+	/* Set drawing direction */
+	/* -Y, X maj, -X (default) */
+	if (curx > destx)
+	{
+		blitcmd |= (1 << 25);  /* Drawing direction +X */
+	}
+	else
+	{
+		curx  += (width - 1);
+		destx += (width - 1);
+	}
+
+	if (cury > desty)
+	{
+		blitcmd |= (1 << 26);  /* Drawing direction +Y */
+	}
+	else
+	{
+		cury  += (height - 1);
+		desty += (height - 1);
+	}
+
+	if (blit_maybe_busy)
+		Cyber3D_WaitBusy();
+	blit_maybe_busy = 1;
+
+	wl_3d(0xa4f4, 1); /* pattern fb color */
+
+	wl_3d(0xa4e8, ~0); /* mono pat 0 */
+	wl_3d(0xa4ec, ~0); /* mono pat 1 */
+
+	wl_3d(0xa504, ((width << 16) | height));	/* rwidth_height */
+	wl_3d(0xa508, ((curx << 16)  | cury));		/* rsrc_xy */
+	wl_3d(0xa50c, ((destx << 16) | desty));		/* rdest_xy */
+
+	wl_3d(0xa500, blitcmd);				/* GO! */
+}
+
+/*
+ * Rectangle Fill Solid
+ */
+
+static void Cyber3D_RectFill(u_short x, u_short y, u_short width,
+			     u_short height, u_short color, u_short depth)
+{
+	unsigned int tmp;
+	unsigned int blitcmd = S3V_RECTFILL | S3V_DRAW |
+		S3V_BLT_CLEAR | S3V_MONO_PAT | (1 << 26) | (1 << 25);
+
+	if (blit_maybe_busy)
+		Cyber3D_WaitBusy();
+	blit_maybe_busy = 1;
+
+	switch (depth) {
+#ifdef FBCON_HAS_CFB8
+		case 8 :
+			blitcmd |= S3V_DST_8BPP;
+			break;
+#endif
+#ifdef FBCON_HAS_CFB16
+		case 16 :
+			blitcmd |= S3V_DST_16BPP;
+			break;
+#endif
+	}
+
+	tmp = color & 0xff;
+	wl_3d(0xa4f4, tmp);
+
+	wl_3d(0xa504, ((width << 16) | height));	/* rwidth_height */
+	wl_3d(0xa50c, ((x << 16) | y));			/* rdest_xy */
+
+	wl_3d(0xa500, blitcmd);				/* GO! */
+}
+
+
+/**************************************************************
+ * Move cursor to x, y
+ */
+
+#if 0
+static void Cyber_MoveCursor (u_short x, u_short y)
+{
+	printk(KERN_DEBUG "Yuck .... MoveCursor on a 3D\n");
+	return;
+}
+#endif
+
+/* -------------------- Interfaces to hardware functions -------------------- */
+
+
+static struct fb_hwswitch Cyber_switch = {
+	Cyber_init, Cyber_encode_fix, Cyber_decode_var, Cyber_encode_var,
+	Cyber_getcolreg, Cyber_setcolreg, Cyber_blank
+};
+
+
+/* -------------------- Generic routines ------------------------------------ */
+
+
+/*
+ *    Fill the hardware's `par' structure.
+ */
+
+static void virgefb_get_par(struct virgefb_par *par)
+{
+	if (current_par_valid)
+	{
+		*par = current_par;
+	}
+	else
+	{
+		fbhw->decode_var(&virgefb_default, par);
+	}
+}
+
+
+static void virgefb_set_par(struct virgefb_par *par)
+{
+	current_par = *par;
+	current_par_valid = 1;
+}
+
+
+static void virge_set_video(struct fb_var_screeninfo *var)
+{
+	/* Set clipping rectangle to current screen size */
+ 
+	unsigned int clip;
+
+	clip = ((0 << 16) | (var->xres - 1));
+	wl_3d(0xa4dc, clip);
+	clip = ((0 << 16) | (var->yres - 1));
+	wl_3d(0xa4e0, clip);
+}
+
+
+static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive)
+{
+	int err, activate;
+	struct virgefb_par par;
+
+	if ((err = fbhw->decode_var(var, &par)))
+		return(err);
+	activate = var->activate;
+	if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW && isactive)
+		virgefb_set_par(&par);
+	fbhw->encode_var(var, &par);
+	var->activate = activate;
+
+	virge_set_video(var);
+	return 0;
+}
+
+
+static void do_install_cmap(int con, struct fb_info *info)
+{
+	if (con != currcon)
+		return;
+	if (fb_display[con].cmap.len)
+		fb_set_cmap(&fb_display[con].cmap, 1, fbhw->setcolreg, info);
+	else
+		fb_set_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel),
+			    1, fbhw->setcolreg, info);
+}
+
+/*
+ *    Get the Fixed Part of the Display
+ */
+
+static int virgefb_get_fix(struct fb_fix_screeninfo *fix, int con,
+			   struct fb_info *info)
+{
+	struct virgefb_par par;
+	int error = 0;
+
+	if (con == -1)
+		virgefb_get_par(&par);
+	else
+		error = fbhw->decode_var(&fb_display[con].var, &par);
+	return(error ? error : fbhw->encode_fix(fix, &par));
+}
+
+
+/*
+ *    Get the User Defined Part of the Display
+ */
+
+static int virgefb_get_var(struct fb_var_screeninfo *var, int con,
+			   struct fb_info *info)
+{
+	struct virgefb_par par;
+	int error = 0;
+
+	if (con == -1)
+	{
+		virgefb_get_par(&par);
+		error = fbhw->encode_var(var, &par);
+		disp.var = *var;   /* ++Andre: don't know if this is the right place */
+	}
+	else
+	{
+		*var = fb_display[con].var;
+	}
+
+	return(error);
+}
+
+
+static void virgefb_set_disp(int con, struct fb_info *info)
+{
+	struct fb_fix_screeninfo fix;
+	struct display *display;
+
+	if (con >= 0)
+		display = &fb_display[con];
+	else
+		display = &disp;	/* used during initialization */
+
+	virgefb_get_fix(&fix, con, info);
+	if (con == -1)
+		con = 0;
+	if (cv3d_on_zorro2) {
+		display->screen_base = (char*) CyberMem;
+	} else {
+	        switch (display->var.bits_per_pixel) {
+			case 8:
+				display->screen_base = (char*) (CyberMem + CYBMEM_OFFSET_8);
+				break;
+			case 16:
+				display->screen_base = (char*) (CyberMem + CYBMEM_OFFSET_16);
+				break;
+		}
+	}
+	display->visual = fix.visual;
+	display->type = fix.type;
+	display->type_aux = fix.type_aux;
+	display->ypanstep = fix.ypanstep;
+	display->ywrapstep = fix.ywrapstep;
+	display->can_soft_blank = 1;
+	display->inverse = Cyberfb_inverse;
+	switch (display->var.bits_per_pixel) {
+#ifdef FBCON_HAS_CFB8
+		case 8:
+			if (display->var.accel_flags & FB_ACCELF_TEXT) {
+		   		display->dispsw = &fbcon_virge8;
+#warning FIXME: We should reinit the graphics engine here
+			} else
+				display->dispsw = &fbcon_cfb8;
+			break;
+#endif
+#ifdef FBCON_HAS_CFB16
+		case 16:
+			if (display->var.accel_flags & FB_ACCELF_TEXT) {
+				display->dispsw = &fbcon_virge16;
+			} else
+				display->dispsw = &fbcon_cfb16;
+			display->dispsw_data = &fbcon_cmap.cfb16;
+			break;
+#endif
+		default:
+			display->dispsw = &fbcon_dummy;
+			break;
+	}
+}
+
+
+/*
+ *    Set the User Defined Part of the Display
+ */
+
+static int virgefb_set_var(struct fb_var_screeninfo *var, int con,
+			   struct fb_info *info)
+{
+	int err, oldxres, oldyres, oldvxres, oldvyres, oldbpp, oldaccel;
+
+	if ((err = do_fb_set_var(var, con == currcon)))
+		return(err);
+	if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
+		oldxres = fb_display[con].var.xres;
+		oldyres = fb_display[con].var.yres;
+		oldvxres = fb_display[con].var.xres_virtual;
+		oldvyres = fb_display[con].var.yres_virtual;
+		oldbpp = fb_display[con].var.bits_per_pixel;
+		oldaccel = fb_display[con].var.accel_flags;
+		fb_display[con].var = *var;
+		if (oldxres != var->xres || oldyres != var->yres ||
+		    oldvxres != var->xres_virtual ||
+		    oldvyres != var->yres_virtual ||
+		    oldbpp != var->bits_per_pixel ||
+		    oldaccel != var->accel_flags) {
+			virgefb_set_disp(con, info);
+			(*fb_info.changevar)(con);
+			fb_alloc_cmap(&fb_display[con].cmap, 0, 0);
+			do_install_cmap(con, info);
+		}
+	}
+	var->activate = 0;
+	return(0);
+}
+
+
+/*
+ *    Get the Colormap
+ */
+
+static int virgefb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
+			    struct fb_info *info)
+{
+	if (con == currcon) /* current console? */
+		return(fb_get_cmap(cmap, kspc, fbhw->getcolreg, info));
+	else if (fb_display[con].cmap.len) /* non default colormap? */
+		fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2);
+	else
+		fb_copy_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel),
+			     cmap, kspc ? 0 : 2);
+	return(0);
+}
+
+
+/*
+ *    Set the Colormap
+ */
+
+static int virgefb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
+			    struct fb_info *info)
+{
+	int err;
+
+	if (!fb_display[con].cmap.len) {       /* no colormap allocated? */
+		if ((err = fb_alloc_cmap(&fb_display[con].cmap,
+				1<<fb_display[con].var.bits_per_pixel, 0)))
+			return(err);
+	}
+	if (con == currcon)		 /* current console? */
+		return(fb_set_cmap(cmap, kspc, fbhw->setcolreg, info));
+	else
+		fb_copy_cmap(cmap, &fb_display[con].cmap, kspc ? 0 : 1);
+	return(0);
+}
+
+
+static struct fb_ops virgefb_ops = {
+	owner:		THIS_MODULE,
+	fb_get_fix:	virgefb_get_fix,
+	fb_get_var:	virgefb_get_var,
+	fb_set_var:	virgefb_set_var,
+	fb_get_cmap:	virgefb_get_cmap,
+	fb_set_cmap:	virgefb_set_cmap,
+};
+
+
+int __init virgefb_setup(char *options)
+{
+	char *this_opt;
+
+	fb_info.fontname[0] = '\0';
+
+	if (!options || !*options)
+		return 0;
+
+	while ((this_opt = strsep(&options, ",")) != NULL) {
+		if (!*this_opt)
+			continue;
+		if (!strcmp(this_opt, "inverse")) {
+			Cyberfb_inverse = 1;
+			fb_invert_cmaps();
+		} else if (!strncmp(this_opt, "font:", 5))
+			strcpy(fb_info.fontname, this_opt+5);
+		else if (!strcmp (this_opt, "virge8")){
+			virgefb_default = virgefb_predefined[VIRGE8_DEFMODE].var;
+		}
+		else if (!strcmp (this_opt, "virge16")){
+			virgefb_default = virgefb_predefined[VIRGE16_DEFMODE].var;
+		}
+		else
+			get_video_mode(this_opt);
+	}
+
+	DPRINTK("default mode: xres=%d, yres=%d, bpp=%d\n",virgefb_default.xres,
+                                                           virgefb_default.yres,
+		                                           virgefb_default.bits_per_pixel);
+	return 0;
+}
+
+
+/*
+ *    Initialization
+ */
+
+int __init virgefb_init(void)
+{
+	struct virgefb_par par;
+	unsigned long board_addr, ramsize;
+	struct zorro_dev *z = NULL;
+
+	while ((z = zorro_find_device(ZORRO_PROD_PHASE5_CYBERVISION64_3D, z))) {
+	    board_addr = z->resource.start;
+	    if (board_addr < 0x01000000) {
+		/*
+		 * Ok we got the board running in Z2 space.
+		 */
+		 CyberRegs_phys = (unsigned long)(board_addr + 0x003e0000);
+		 CyberMem_phys = board_addr;
+		 ramsize = 0x00380000;
+	    } else {
+		CyberRegs_phys = board_addr + 0x05000000;
+		CyberMem_phys  = board_addr + 0x04000000;	/* was 0x04800000 */
+		ramsize = 0x00400000;
+	    }
+	    if (!request_mem_region(CyberRegs_phys, 0x10000, "S3 ViRGE"))
+		continue;
+	    if (!request_mem_region(CyberMem_phys, ramsize, "RAM")) {
+		release_mem_region(CyberRegs_phys, 0x10000);
+		continue;
+	    }
+
+	    if (board_addr < 0x01000000) {
+		/*
+		 * Ok we got the board running in Z2 space.
+		 */
+
+		CyberMem = ZTWO_VADDR(CyberMem_phys);
+		CyberVGARegs = (unsigned long) \
+			ZTWO_VADDR(board_addr + 0x003c0000);
+		CyberRegs = (unsigned char *)ZTWO_VADDR(CyberRegs_phys);
+		Cyber_register_base = (unsigned long) \
+			ZTWO_VADDR(board_addr + 0x003c8000);
+		Cyber_vcode_switch_base = (unsigned long) \
+			ZTWO_VADDR(board_addr + 0x003a0000);
+		cv3d_on_zorro2 = 1;
+		printk(KERN_INFO "CV3D detected running in Z2 mode.\n");
+	    } else {
+		CyberVGARegs = (unsigned long)ioremap(board_addr+0x0c000000, 0x00010000);
+		CyberRegs = ioremap(CyberRegs_phys, 0x00010000);
+		CyberMem = (unsigned long)ioremap(CyberMem_phys, 0x01000000);	/* was 0x00400000 */
+		cv3d_on_zorro2 = 0;
+		printk(KERN_INFO "CV3D detected running in Z3 mode.\n");
+	    }
+
+	    fbhw = &Cyber_switch;
+
+	    strcpy(fb_info.modename, virgefb_name);
+	    fb_info.changevar = NULL;
+	    fb_info.node = -1;
+	    fb_info.fbops = &virgefb_ops;
+	    fb_info.disp = &disp;
+	    fb_info.switch_con = &Cyberfb_switch;
+	    fb_info.updatevar = &Cyberfb_updatevar;
+	    fb_info.blank = &Cyberfb_blank;
+	    fb_info.flags = FBINFO_FLAG_DEFAULT;
+
+	    fbhw->init();
+	    fbhw->decode_var(&virgefb_default, &par);
+	    fbhw->encode_var(&virgefb_default, &par);
+
+	    do_fb_set_var(&virgefb_default, 1);
+	    virgefb_get_var(&fb_display[0].var, -1, &fb_info);
+	    virgefb_set_disp(-1, &fb_info);
+	    do_install_cmap(0, &fb_info);
+
+	    if (register_framebuffer(&fb_info) < 0) {
+		printk(KERN_ERR "virgefb.c: register_framebuffer failed\n");
+		return -EINVAL;
+	    }
+
+	    printk(KERN_INFO "fb%d: %s frame buffer device, using %ldK of "
+		   "video memory\n", GET_FB_IDX(fb_info.node),
+		   fb_info.modename, CyberSize>>10);
+
+	    /* TODO: This driver cannot be unloaded yet */
+	    MOD_INC_USE_COUNT;
+	    return 0;
+	}
+	return -ENODEV;
+}
+
+
+static int Cyberfb_switch(int con, struct fb_info *info)
+{
+	/* Do we have to save the colormap? */
+	if (fb_display[currcon].cmap.len)
+		fb_get_cmap(&fb_display[currcon].cmap, 1, fbhw->getcolreg,
+			    info);
+
+	do_fb_set_var(&fb_display[con].var, 1);
+	currcon = con;
+	/* Install new colormap */
+	do_install_cmap(con, info);
+	return(0);
+}
+
+
+/*
+ *    Update the `var' structure (called by fbcon.c)
+ *
+ *    This call looks only at yoffset and the FB_VMODE_YWRAP flag in `var'.
+ *    Since it's called by a kernel driver, no range checking is done.
+ */
+
+static int Cyberfb_updatevar(int con, struct fb_info *info)
+{
+	return(0);
+}
+
+
+/*
+ *    Blank the display.
+ */
+
+static void Cyberfb_blank(int blank, struct fb_info *info)
+{
+	fbhw->blank(blank);
+}
+
+
+/*
+ *    Get a Video Mode
+ */
+
+static int __init get_video_mode(const char *name)
+{
+	int i;
+
+	for (i = 0; i < NUM_TOTAL_MODES; i++) {
+		if (!strcmp(name, virgefb_predefined[i].name)) {
+			virgefb_default = virgefb_predefined[i].var;
+			return(i);
+		}
+	}
+	/* ++Andre: set virgefb default mode */
+	virgefb_default = virgefb_predefined[VIRGE8_DEFMODE].var;
+	return(0);
+}
+
+
+/*
+ *    Text console acceleration
+ */
+
+#ifdef FBCON_HAS_CFB8
+static void fbcon_virge8_bmove(struct display *p, int sy, int sx, int dy,
+			       int dx, int height, int width)
+{
+        sx *= 8; dx *= 8; width *= 8;
+        Cyber3D_BitBLT((u_short)sx, (u_short)(sy*fontheight(p)), (u_short)dx,
+                       (u_short)(dy*fontheight(p)), (u_short)width,
+                       (u_short)(height*fontheight(p)), 8);
+}
+
+static void fbcon_virge8_clear(struct vc_data *conp, struct display *p, int sy,
+			       int sx, int height, int width)
+{
+        unsigned char bg;
+
+        sx *= 8; width *= 8;
+        bg = attr_bgcol_ec(p,conp);
+        Cyber3D_RectFill((u_short)sx, (u_short)(sy*fontheight(p)),
+                         (u_short)width, (u_short)(height*fontheight(p)),
+                         (u_short)bg, 8);
+}
+
+static void fbcon_virge8_putc(struct vc_data *conp, struct display *p, int c, int yy,
+                              int xx)
+{
+	if (blit_maybe_busy)
+		Cyber3D_WaitBusy();
+	fbcon_cfb8_putc(conp, p, c, yy, xx);
+}
+
+static void fbcon_virge8_putcs(struct vc_data *conp, struct display *p,
+                      const unsigned short *s, int count, int yy, int xx)
+{
+	if (blit_maybe_busy)
+		Cyber3D_WaitBusy();
+	fbcon_cfb8_putcs(conp, p, s, count, yy, xx);
+}
+
+static void fbcon_virge8_revc(struct display *p, int xx, int yy)
+{
+	if (blit_maybe_busy)
+		Cyber3D_WaitBusy();
+	fbcon_cfb8_revc(p, xx, yy);
+}
+
+static void fbcon_virge8_clear_margins(struct vc_data *conp, struct display *p,
+                              int bottom_only)
+{
+	if (blit_maybe_busy)
+		Cyber3D_WaitBusy();
+	fbcon_cfb8_clear_margins(conp, p, bottom_only);
+}
+
+static struct display_switch fbcon_virge8 = {
+   setup:		fbcon_cfb8_setup,
+   bmove:		fbcon_virge8_bmove,
+   clear:		fbcon_virge8_clear,
+   putc:		fbcon_virge8_putc,
+   putcs:		fbcon_virge8_putcs,
+   revc:		fbcon_virge8_revc,
+   clear_margins:	fbcon_virge8_clear_margins,
+   fontwidthmask:	FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
+};
+#endif
+
+#ifdef FBCON_HAS_CFB16
+static void fbcon_virge16_bmove(struct display *p, int sy, int sx, int dy,
+                               int dx, int height, int width)
+{
+        sx *= 8; dx *= 8; width *= 8;
+        Cyber3D_BitBLT((u_short)sx, (u_short)(sy*fontheight(p)), (u_short)dx,
+                       (u_short)(dy*fontheight(p)), (u_short)width,
+                       (u_short)(height*fontheight(p)), 16);
+}
+                
+static void fbcon_virge16_clear(struct vc_data *conp, struct display *p, int sy,
+                               int sx, int height, int width)
+{
+        unsigned char bg;   
+                
+        sx *= 8; width *= 8;
+        bg = attr_bgcol_ec(p,conp);
+        Cyber3D_RectFill((u_short)sx, (u_short)(sy*fontheight(p)),
+                         (u_short)width, (u_short)(height*fontheight(p)),
+                         (u_short)bg, 16);
+}
+   
+static void fbcon_virge16_putc(struct vc_data *conp, struct display *p, int c, int yy,
+                              int xx)
+{
+	if (blit_maybe_busy)
+		Cyber3D_WaitBusy();
+	fbcon_cfb16_putc(conp, p, c, yy, xx);
+}
+
+static void fbcon_virge16_putcs(struct vc_data *conp, struct display *p,
+                      const unsigned short *s, int count, int yy, int xx)
+{
+	if (blit_maybe_busy)
+		Cyber3D_WaitBusy();
+	fbcon_cfb16_putcs(conp, p, s, count, yy, xx);
+}
+
+static void fbcon_virge16_revc(struct display *p, int xx, int yy)
+{
+	if (blit_maybe_busy)
+		Cyber3D_WaitBusy();
+	fbcon_cfb16_revc(p, xx, yy);
+}
+
+static void fbcon_virge16_clear_margins(struct vc_data *conp, struct display *p,
+                              int bottom_only)
+{
+	if (blit_maybe_busy)
+		Cyber3D_WaitBusy();
+	fbcon_cfb16_clear_margins(conp, p, bottom_only);
+}
+
+static struct display_switch fbcon_virge16 = {
+   setup:		fbcon_cfb16_setup,
+   bmove:		fbcon_virge16_bmove,
+   clear:		fbcon_virge16_clear,
+   putc:		fbcon_virge16_putc,
+   putcs:		fbcon_virge16_putcs,
+   revc:		fbcon_virge16_revc,
+   clear_margins:	fbcon_virge16_clear_margins,
+   fontwidthmask:	FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
+};
+#endif
+
+#ifdef MODULE
+MODULE_LICENSE("GPL");
+
+int init_module(void)
+{
+	return virgefb_init();
+}
+
+void cleanup_module(void)
+{
+	/* Not reached because the usecount will never be
+	   decremented to zero */
+	unregister_framebuffer(&fb_info);
+	/* TODO: clean up ... */
+}
+#endif /* MODULE */