patch-2.3.48 linux/drivers/video/matrox/matroxfb_base.c

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diff -u --recursive --new-file v2.3.47/linux/drivers/video/matrox/matroxfb_base.c linux/drivers/video/matrox/matroxfb_base.c
@@ -0,0 +1,2544 @@
+/*
+ *
+ * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200 and G400
+ *
+ * (c) 1998,1999,2000 Petr Vandrovec <vandrove@vc.cvut.cz>
+ *
+ * Version: 1.21 1999/01/09
+ *
+ * MTRR stuff: 1998 Tom Rini <trini@kernel.crashing.org>
+ *
+ * Contributors: "menion?" <menion@mindless.com>
+ *                     Betatesting, fixes, ideas
+ *
+ *               "Kurt Garloff" <garloff@kg1.ping.de>
+ *                     Betatesting, fixes, ideas, videomodes, videomodes timmings
+ *
+ *               "Tom Rini" <trini@kernel.crashing.org>
+ *                     MTRR stuff, PPC cleanups, betatesting, fixes, ideas
+ *
+ *               "Bibek Sahu" <scorpio@dodds.net>
+ *                     Access device through readb|w|l and write b|w|l
+ *                     Extensive debugging stuff
+ *
+ *               "Daniel Haun" <haund@usa.net>
+ *                     Testing, hardware cursor fixes
+ *
+ *               "Scott Wood" <sawst46+@pitt.edu>
+ *                     Fixes
+ *
+ *               "Gerd Knorr" <kraxel@goldbach.isdn.cs.tu-berlin.de>
+ *                     Betatesting
+ *
+ *               "Kelly French" <targon@hazmat.com>
+ *               "Fernando Herrera" <fherrera@eurielec.etsit.upm.es>
+ *                     Betatesting, bug reporting
+ *
+ *               "Pablo Bianucci" <pbian@pccp.com.ar>
+ *                     Fixes, ideas, betatesting
+ *
+ *               "Inaky Perez Gonzalez" <inaky@peloncho.fis.ucm.es>
+ *                     Fixes, enhandcements, ideas, betatesting
+ *
+ *               "Ryuichi Oikawa" <roikawa@rr.iiij4u.or.jp>
+ *                     PPC betatesting, PPC support, backward compatibility
+ *
+ *               "Paul Womar" <Paul@pwomar.demon.co.uk>
+ *               "Owen Waller" <O.Waller@ee.qub.ac.uk>
+ *                     PPC betatesting
+ *
+ *               "Thomas Pornin" <pornin@bolet.ens.fr>
+ *                     Alpha betatesting
+ *
+ *               "Pieter van Leuven" <pvl@iae.nl>
+ *               "Ulf Jaenicke-Roessler" <ujr@physik.phy.tu-dresden.de>
+ *                     G100 testing
+ *
+ *               "H. Peter Arvin" <hpa@transmeta.com>
+ *                     Ideas
+ *
+ *               "Cort Dougan" <cort@cs.nmt.edu>
+ *                     CHRP fixes and PReP cleanup
+ *
+ *               "Mark Vojkovich" <mvojkovi@ucsd.edu>
+ *                     G400 support
+ *
+ *               "Samuel Hocevar" <sam@via.ecp.fr>
+ *                     Fixes
+ *
+ *               "Anton Altaparmakov" <AntonA@bigfoot.com>
+ *                     G400 MAX/non-MAX distinction
+ *
+ * (following author is not in any relation with this code, but his code
+ *  is included in this driver)
+ *
+ * Based on framebuffer driver for VBE 2.0 compliant graphic boards
+ *     (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
+ *
+ * (following author is not in any relation with this code, but his ideas
+ *  were used when writting this driver)
+ *
+ *		 FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
+ *
+ */
+
+/* make checkconfig does not check included files... */
+#include <linux/config.h>
+
+#include "matroxfb_base.h"
+#include "matroxfb_misc.h"
+#include "matroxfb_accel.h"
+#include "matroxfb_DAC1064.h"
+#include "matroxfb_Ti3026.h"
+#include "matroxfb_maven.h"
+#include "matroxfb_crtc2.h"
+#include <linux/matroxfb.h>
+#include <asm/uaccess.h>
+
+#if defined(CONFIG_FB_OF)
+unsigned char nvram_read_byte(int);
+int matrox_of_init(struct device_node *dp);
+static int default_vmode = VMODE_NVRAM;
+static int default_cmode = CMODE_NVRAM;
+#endif
+
+static void matroxfb_unregister_device(struct matrox_fb_info* minfo);
+
+/* --------------------------------------------------------------------- */
+
+/*
+ * card parameters
+ */
+
+/* --------------------------------------------------------------------- */
+
+static struct fb_var_screeninfo vesafb_defined = {
+	640,480,640,480,/* W,H, W, H (virtual) load xres,xres_virtual*/
+	0,0,		/* virtual -> visible no offset */
+	8,		/* depth -> load bits_per_pixel */
+	0,		/* greyscale ? */
+	{0,0,0},	/* R */
+	{0,0,0},	/* G */
+	{0,0,0},	/* B */
+	{0,0,0},	/* transparency */
+	0,		/* standard pixel format */
+	FB_ACTIVATE_NOW,
+	-1,-1,
+	FB_ACCELF_TEXT,	/* accel flags */
+	39721L,48L,16L,33L,10L,
+	96L,2L,~0,	/* No sync info */
+	FB_VMODE_NONINTERLACED,
+	{0,0,0,0,0,0}
+};
+
+
+
+/* --------------------------------------------------------------------- */
+
+static void matrox_pan_var(WPMINFO struct fb_var_screeninfo *var) {
+	unsigned int pos;
+	unsigned short p0, p1, p2;
+#ifdef CONFIG_FB_MATROX_32MB
+	unsigned int p3;
+#endif
+	struct display *disp;
+	CRITFLAGS
+
+	DBG("matrox_pan_var")
+
+	if (ACCESS_FBINFO(dead))
+		return;
+
+	disp = ACCESS_FBINFO(currcon_display);
+	if (disp->type == FB_TYPE_TEXT) {
+		pos = var->yoffset / fontheight(disp) * disp->next_line / ACCESS_FBINFO(devflags.textstep) + var->xoffset / (fontwidth(disp)?fontwidth(disp):8);
+	} else {
+		pos = (var->yoffset * var->xres_virtual + var->xoffset) * ACCESS_FBINFO(curr.final_bppShift) / 32;
+		pos += ACCESS_FBINFO(curr.ydstorg.chunks);
+	}
+	p0 = ACCESS_FBINFO(currenthw)->CRTC[0x0D] = pos & 0xFF;
+	p1 = ACCESS_FBINFO(currenthw)->CRTC[0x0C] = (pos & 0xFF00) >> 8;
+	p2 = ACCESS_FBINFO(currenthw)->CRTCEXT[0] = (ACCESS_FBINFO(currenthw)->CRTCEXT[0] & 0xB0) | ((pos >> 16) & 0x0F) | ((pos >> 14) & 0x40);
+#ifdef CONFIG_FB_MATROX_32MB
+	p3 = ACCESS_FBINFO(currenthw)->CRTCEXT[8] = pos >> 21;
+#endif
+
+	CRITBEGIN
+
+	mga_setr(M_CRTC_INDEX, 0x0D, p0);
+	mga_setr(M_CRTC_INDEX, 0x0C, p1);
+#ifdef CONFIG_FB_MATROX_32MB
+	if (ACCESS_FBINFO(devflags.support32MB))
+		mga_setr(M_EXTVGA_INDEX, 0x08, p3);
+#endif
+	mga_setr(M_EXTVGA_INDEX, 0x00, p2);
+
+	CRITEND
+}
+
+static void matroxfb_remove(WPMINFO int dummy) {
+	/* Currently we are holding big kernel lock on all dead & usecount updates.
+	 * Destroy everything after all users release it. Especially do not unregister
+	 * framebuffer and iounmap memory, neither fbmem nor fbcon-cfb* does not check
+	 * for device unplugged when in use.
+	 * In future we should point mmio.vbase & video.vbase somewhere where we can
+	 * write data without causing too much damage...
+	 */
+
+	ACCESS_FBINFO(dead) = 1;
+	if (ACCESS_FBINFO(usecount)) {
+		/* destroy it later */
+		return;
+	}
+	matroxfb_unregister_device(MINFO);
+	unregister_framebuffer(&ACCESS_FBINFO(fbcon));
+	del_timer(&ACCESS_FBINFO(cursor.timer));
+#ifdef CONFIG_MTRR
+	if (ACCESS_FBINFO(mtrr.vram_valid))
+		mtrr_del(ACCESS_FBINFO(mtrr.vram), ACCESS_FBINFO(video.base), ACCESS_FBINFO(video.len));
+#endif
+	mga_iounmap(ACCESS_FBINFO(mmio.vbase));
+	mga_iounmap(ACCESS_FBINFO(video.vbase));
+	release_mem_region(ACCESS_FBINFO(video.base), ACCESS_FBINFO(video.len_maximum));
+	release_mem_region(ACCESS_FBINFO(mmio.base), 16384);
+#ifdef CONFIG_FB_MATROX_MULTIHEAD
+	kfree_s(ACCESS_FBINFO(fbcon.disp), sizeof(struct display));
+	kfree_s(minfo, sizeof(struct matrox_fb_info));
+#endif
+}
+
+	/*
+	 * Open/Release the frame buffer device
+	 */
+
+static int matroxfb_open(struct fb_info *info, int user)
+{
+#define minfo ((struct matrox_fb_info*)info)
+	DBG_LOOP("matroxfb_open")
+
+	if (ACCESS_FBINFO(dead)) {
+		return -ENXIO;
+	}
+	MOD_INC_USE_COUNT;
+	ACCESS_FBINFO(usecount)++;
+#undef minfo
+	return(0);
+}
+
+static int matroxfb_release(struct fb_info *info, int user)
+{
+#define minfo ((struct matrox_fb_info*)info)
+	DBG_LOOP("matroxfb_release")
+
+	if (!(--ACCESS_FBINFO(usecount)) && ACCESS_FBINFO(dead)) {
+		matroxfb_remove(PMINFO 0);
+	}
+	MOD_DEC_USE_COUNT;
+#undef minfo
+	return(0);
+}
+
+static int matroxfb_pan_display(struct fb_var_screeninfo *var, int con,
+		struct fb_info* info) {
+#define minfo ((struct matrox_fb_info*)info)
+
+	DBG("matroxfb_pan_display")
+
+	if (var->vmode & FB_VMODE_YWRAP) {
+		if (var->yoffset < 0 || var->yoffset >= fb_display[con].var.yres_virtual || var->xoffset)
+			return -EINVAL;
+	} else {
+		if (var->xoffset+fb_display[con].var.xres > fb_display[con].var.xres_virtual ||
+		    var->yoffset+fb_display[con].var.yres > fb_display[con].var.yres_virtual)
+			return -EINVAL;
+	}
+	if (con == ACCESS_FBINFO(currcon))
+		matrox_pan_var(PMINFO var);
+	fb_display[con].var.xoffset = var->xoffset;
+	fb_display[con].var.yoffset = var->yoffset;
+	if (var->vmode & FB_VMODE_YWRAP)
+		fb_display[con].var.vmode |= FB_VMODE_YWRAP;
+	else
+		fb_display[con].var.vmode &= ~FB_VMODE_YWRAP;
+	return 0;
+#undef minfo
+}
+
+static int matroxfb_updatevar(int con, struct fb_info *info)
+{
+#define minfo ((struct matrox_fb_info*)info)
+	DBG("matroxfb_updatevar");
+
+	matrox_pan_var(PMINFO &fb_display[con].var);
+	return 0;
+#undef minfo
+}
+
+static int matroxfb_get_final_bppShift(CPMINFO int bpp) {
+	int bppshft2;
+
+	DBG("matroxfb_get_final_bppShift")
+
+	bppshft2 = bpp;
+	if (!bppshft2) {
+		return 8;
+	}
+	if (isInterleave(MINFO))
+		bppshft2 >>= 1;
+	if (ACCESS_FBINFO(devflags.video64bits))
+		bppshft2 >>= 1;
+	return bppshft2;
+}
+
+static int matroxfb_test_and_set_rounding(CPMINFO int xres, int bpp) {
+	int over;
+	int rounding;
+
+	DBG("matroxfb_test_and_set_rounding")
+
+	switch (bpp) {
+		case 0:		return xres;
+		case 4:		rounding = 128;
+				break;
+		case 8:		rounding = 64;	/* doc says 64; 32 is OK for G400 */
+				break;
+		case 16:	rounding = 32;
+				break;
+		case 24:	rounding = 64;	/* doc says 64; 32 is OK for G400 */
+				break;
+		default:	rounding = 16;
+				/* on G400, 16 really does not work */
+				if (ACCESS_FBINFO(devflags.accelerator) == FB_ACCEL_MATROX_MGAG400)
+					rounding = 32;
+				break;
+	}
+	if (isInterleave(MINFO)) {
+		rounding *= 2;
+	}
+	over = xres % rounding;
+	if (over)
+		xres += rounding-over;
+	return xres;
+}
+
+static int matroxfb_pitch_adjust(CPMINFO int xres, int bpp) {
+	const int* width;
+	int xres_new;
+
+	DBG("matroxfb_pitch_adjust")
+
+	if (!bpp) return xres;
+
+	width = ACCESS_FBINFO(capable.vxres);
+
+	if (ACCESS_FBINFO(devflags.precise_width)) {
+		while (*width) {
+			if ((*width >= xres) && (matroxfb_test_and_set_rounding(PMINFO *width, bpp) == *width)) {
+				break;
+			}
+			width++;
+		}
+		xres_new = *width;
+	} else {
+		xres_new = matroxfb_test_and_set_rounding(PMINFO xres, bpp);
+	}
+	if (!xres_new) return 0;
+	if (xres != xres_new) {
+		printk(KERN_INFO "matroxfb: cannot set xres to %d, rounded up to %d\n", xres, xres_new);
+	}
+	return xres_new;
+}
+
+static int matroxfb_get_cmap_len(struct fb_var_screeninfo *var) {
+
+	DBG("matroxfb_get_cmap_len")
+
+	switch (var->bits_per_pixel) {
+#ifdef FBCON_HAS_VGATEXT
+		case 0:
+			return 16;	/* pseudocolor... 16 entries HW palette */
+#endif
+#ifdef FBCON_HAS_CFB4
+		case 4:
+			return 16;	/* pseudocolor... 16 entries HW palette */
+#endif
+#ifdef FBCON_HAS_CFB8
+		case 8:
+			return 256;	/* pseudocolor... 256 entries HW palette */
+#endif
+#ifdef FBCON_HAS_CFB16
+		case 16:
+			return 16;	/* directcolor... 16 entries SW palette */
+					/* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
+#endif
+#ifdef FBCON_HAS_CFB24
+		case 24:
+			return 16;	/* directcolor... 16 entries SW palette */
+					/* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
+#endif
+#ifdef FBCON_HAS_CFB32
+		case 32:
+			return 16;	/* directcolor... 16 entries SW palette */
+					/* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
+#endif
+	}
+	return 16;	/* return something reasonable... or panic()? */
+}
+
+static int matroxfb_decode_var(CPMINFO struct display* p, struct fb_var_screeninfo *var, int *visual, int *video_cmap_len, unsigned int* ydstorg) {
+	unsigned int vramlen;
+	unsigned int memlen;
+
+	DBG("matroxfb_decode_var")
+
+	switch (var->bits_per_pixel) {
+#ifdef FBCON_HAS_VGATEXT
+		case 0:	 if (!ACCESS_FBINFO(capable.text)) return -EINVAL;
+			 break;
+#endif
+#ifdef FBCON_HAS_CFB4
+		case 4:	 if (!ACCESS_FBINFO(capable.cfb4)) return -EINVAL;
+			 break;
+#endif
+#ifdef FBCON_HAS_CFB8
+		case 8:	 break;
+#endif
+#ifdef FBCON_HAS_CFB16
+		case 16: break;
+#endif
+#ifdef FBCON_HAS_CFB24
+		case 24: break;
+#endif
+#ifdef FBCON_HAS_CFB32
+		case 32: break;
+#endif
+		default: return -EINVAL;
+	}
+	*ydstorg = 0;
+	vramlen = ACCESS_FBINFO(video.len_usable);
+	if (var->yres_virtual < var->yres)
+		var->yres_virtual = var->yres;
+	if (var->xres_virtual < var->xres)
+		var->xres_virtual = var->xres;
+	if (var->bits_per_pixel) {
+		var->xres_virtual = matroxfb_pitch_adjust(PMINFO var->xres_virtual, var->bits_per_pixel);
+		memlen = var->xres_virtual * var->bits_per_pixel * var->yres_virtual / 8;
+		if (memlen > vramlen) {
+			var->yres_virtual = vramlen * 8 / (var->xres_virtual * var->bits_per_pixel);
+			memlen = var->xres_virtual * var->bits_per_pixel * var->yres_virtual / 8;
+		}
+		/* There is hardware bug that no line can cross 4MB boundary */
+		/* give up for CFB24, it is impossible to easy workaround it */
+		/* for other try to do something */
+		if (!ACCESS_FBINFO(capable.cross4MB) && (memlen > 0x400000)) {
+			if (var->bits_per_pixel == 24) {
+				/* sorry */
+			} else {
+				unsigned int linelen;
+				unsigned int m1 = linelen = var->xres_virtual * var->bits_per_pixel / 8;
+				unsigned int m2 = PAGE_SIZE;	/* or 128 if you do not need PAGE ALIGNED address */
+				unsigned int max_yres;
+
+				while (m1) {
+					int t;
+
+					while (m2 >= m1) m2 -= m1;
+					t = m1;
+					m1 = m2;
+					m2 = t;
+				}
+				m2 = linelen * PAGE_SIZE / m2;
+				*ydstorg = m2 = 0x400000 % m2;
+				max_yres = (vramlen - m2) / linelen;
+				if (var->yres_virtual > max_yres)
+					var->yres_virtual = max_yres;
+			}
+		}
+	} else {
+		matrox_text_round(PMINFO var, p);
+#if 0
+/* we must limit pixclock by mclk...
+   Millennium I:    66 MHz = 15000
+   Millennium II:   61 MHz = 16300
+   Millennium G200: 83 MHz = 12000 */
+		if (var->pixclock < 15000)
+			var->pixclock = 15000;	/* limit for "normal" gclk & mclk */
+#endif
+	}
+	/* YDSTLEN contains only signed 16bit value */
+	if (var->yres_virtual > 32767)
+		var->yres_virtual = 32767;
+	/* we must round yres/xres down, we already rounded y/xres_virtual up
+	   if it was possible. We should return -EINVAL, but I disagree */
+	if (var->yres_virtual < var->yres)
+		var->yres = var->yres_virtual;
+	if (var->xres_virtual < var->xres)
+		var->xres = var->xres_virtual;
+	if (var->xoffset + var->xres > var->xres_virtual)
+		var->xoffset = var->xres_virtual - var->xres;
+	if (var->yoffset + var->yres > var->yres_virtual)
+		var->yoffset = var->yres_virtual - var->yres;
+
+	if (var->bits_per_pixel == 0) {
+		var->red.offset = 0;
+		var->red.length = 6;
+		var->green.offset = 0;
+		var->green.length = 6;
+		var->blue.offset = 0;
+		var->blue.length = 6;
+		var->transp.offset = 0;
+		var->transp.length = 0;
+		*visual = MX_VISUAL_PSEUDOCOLOR;
+	} else if (var->bits_per_pixel == 4) {
+		var->red.offset = 0;
+		var->red.length = 8;
+		var->green.offset = 0;
+		var->green.length = 8;
+		var->blue.offset = 0;
+		var->blue.length = 8;
+		var->transp.offset = 0;
+		var->transp.length = 0;
+		*visual = MX_VISUAL_PSEUDOCOLOR;
+	} else if (var->bits_per_pixel <= 8) {
+		var->red.offset = 0;
+		var->red.length = 8;
+		var->green.offset = 0;
+		var->green.length = 8;
+		var->blue.offset = 0;
+		var->blue.length = 8;
+		var->transp.offset = 0;
+		var->transp.length = 0;
+		*visual = MX_VISUAL_PSEUDOCOLOR;
+	} else {
+		if (var->bits_per_pixel <= 16) {
+			if (var->green.length == 5) {
+				var->red.offset    = 10;
+				var->red.length    = 5;
+				var->green.offset  = 5;
+				var->green.length  = 5;
+				var->blue.offset   = 0;
+				var->blue.length   = 5;
+				var->transp.offset = 15;
+				var->transp.length = 1;
+			} else {
+				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;
+			}
+		} else if (var->bits_per_pixel <= 24) {
+			var->red.offset    = 16;
+			var->red.length    = 8;
+			var->green.offset  = 8;
+			var->green.length  = 8;
+			var->blue.offset   = 0;
+			var->blue.length   = 8;
+			var->transp.offset = 0;
+			var->transp.length = 0;
+		} else {
+			var->red.offset    = 16;
+			var->red.length    = 8;
+			var->green.offset  = 8;
+			var->green.length  = 8;
+			var->blue.offset   = 0;
+			var->blue.length   = 8;
+			var->transp.offset = 24;
+			var->transp.length = 8;
+		}
+		dprintk("matroxfb: truecolor: "
+		       "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
+		       var->transp.length,
+		       var->red.length,
+		       var->green.length,
+		       var->blue.length,
+		       var->transp.offset,
+		       var->red.offset,
+		       var->green.offset,
+		       var->blue.offset);
+		*visual = MX_VISUAL_DIRECTCOLOR;
+	}
+	*video_cmap_len = matroxfb_get_cmap_len(var);
+	dprintk(KERN_INFO "requested %d*%d/%dbpp (%d*%d)\n", var->xres, var->yres, var->bits_per_pixel,
+				var->xres_virtual, var->yres_virtual);
+	return 0;
+}
+
+static int matrox_setcolreg(unsigned regno, unsigned red, unsigned green,
+			    unsigned blue, unsigned transp,
+			    struct fb_info *fb_info)
+{
+	struct display* p;
+#ifdef CONFIG_FB_MATROX_MULTIHEAD
+	struct matrox_fb_info* minfo = (struct matrox_fb_info*)fb_info;
+#endif
+
+	DBG("matrox_setcolreg")
+
+	/*
+	 *  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.
+	 */
+
+	if (regno >= ACCESS_FBINFO(curr.cmap_len))
+		return 1;
+
+	ACCESS_FBINFO(palette[regno].red)   = red;
+	ACCESS_FBINFO(palette[regno].green) = green;
+	ACCESS_FBINFO(palette[regno].blue)  = blue;
+	ACCESS_FBINFO(palette[regno].transp) = transp;
+
+	p = ACCESS_FBINFO(currcon_display);
+	if (p->var.grayscale) {
+		/* gray = 0.30*R + 0.59*G + 0.11*B */
+		red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
+	}
+
+	red = CNVT_TOHW(red, p->var.red.length);
+	green = CNVT_TOHW(green, p->var.green.length);
+	blue = CNVT_TOHW(blue, p->var.blue.length);
+	transp = CNVT_TOHW(transp, p->var.transp.length);
+
+	switch (p->var.bits_per_pixel) {
+#if defined(FBCON_HAS_CFB8) || defined(FBCON_HAS_CFB4) || defined(FBCON_HAS_VGATEXT)
+#ifdef FBCON_HAS_VGATEXT
+	case 0:
+#endif
+#ifdef FBCON_HAS_CFB4
+	case 4:
+#endif
+#ifdef FBCON_HAS_CFB8
+	case 8:
+#endif
+		mga_outb(M_DAC_REG, regno);
+		mga_outb(M_DAC_VAL, red);
+		mga_outb(M_DAC_VAL, green);
+		mga_outb(M_DAC_VAL, blue);
+		break;
+#endif
+#ifdef FBCON_HAS_CFB16
+	case 16:
+		ACCESS_FBINFO(cmap.cfb16[regno]) =
+			(red << p->var.red.offset)     |
+			(green << p->var.green.offset) |
+			(blue << p->var.blue.offset)   |
+			(transp << p->var.transp.offset); /* for 1:5:5:5 */
+		break;
+#endif
+#ifdef FBCON_HAS_CFB24
+	case 24:
+		ACCESS_FBINFO(cmap.cfb24[regno]) =
+			(red   << p->var.red.offset)   |
+			(green << p->var.green.offset) |
+			(blue  << p->var.blue.offset);
+		break;
+#endif
+#ifdef FBCON_HAS_CFB32
+	case 32:
+		ACCESS_FBINFO(cmap.cfb32[regno]) =
+			(red   << p->var.red.offset)   |
+			(green << p->var.green.offset) |
+			(blue  << p->var.blue.offset)  |
+			(transp << p->var.transp.offset);	/* 8:8:8:8 */
+		break;
+#endif
+	}
+	return 0;
+}
+
+static void do_install_cmap(WPMINFO struct display* dsp)
+{
+	DBG("do_install_cmap")
+
+	if (dsp->cmap.len)
+		fb_set_cmap(&dsp->cmap, 1, matrox_setcolreg, &ACCESS_FBINFO(fbcon));
+	else
+		fb_set_cmap(fb_default_cmap(ACCESS_FBINFO(curr.cmap_len)),
+			    1, matrox_setcolreg, &ACCESS_FBINFO(fbcon));
+}
+
+static int matroxfb_get_fix(struct fb_fix_screeninfo *fix, int con,
+			 struct fb_info *info)
+{
+	struct display* p;
+	DBG("matroxfb_get_fix")
+
+#define minfo ((struct matrox_fb_info*)info)
+
+	if (ACCESS_FBINFO(dead)) {
+		return -ENXIO;
+	}
+
+	if (con >= 0)
+		p = fb_display + con;
+	else
+		p = ACCESS_FBINFO(fbcon.disp);
+
+	memset(fix, 0, sizeof(struct fb_fix_screeninfo));
+	strcpy(fix->id,"MATROX");
+
+	fix->smem_start = ACCESS_FBINFO(video.base) + ACCESS_FBINFO(curr.ydstorg.bytes);
+	fix->smem_len = ACCESS_FBINFO(video.len_usable) - ACCESS_FBINFO(curr.ydstorg.bytes);
+	fix->type = p->type;
+	fix->type_aux = p->type_aux;
+	fix->visual = p->visual;
+	fix->xpanstep = 8; /* 8 for 8bpp, 4 for 16bpp, 2 for 32bpp */
+	fix->ypanstep = 1;
+	fix->ywrapstep = 0;
+	fix->line_length = p->line_length;
+	fix->mmio_start = ACCESS_FBINFO(mmio.base);
+	fix->mmio_len = ACCESS_FBINFO(mmio.len);
+	fix->accel = ACCESS_FBINFO(devflags.accelerator);
+	return 0;
+#undef minfo
+}
+
+static int matroxfb_get_var(struct fb_var_screeninfo *var, int con,
+			 struct fb_info *info)
+{
+#define minfo ((struct matrox_fb_info*)info)
+	DBG("matroxfb_get_var")
+
+	if(con < 0)
+		*var=ACCESS_FBINFO(fbcon.disp)->var;
+	else
+		*var=fb_display[con].var;
+	return 0;
+#undef minfo
+}
+
+static int matroxfb_set_var(struct fb_var_screeninfo *var, int con,
+			 struct fb_info *info)
+{
+#define minfo ((struct matrox_fb_info*)info)
+	int err;
+	int visual;
+	int cmap_len;
+	unsigned int ydstorg;
+	struct display* display;
+	int chgvar;
+
+	DBG("matroxfb_set_var")
+
+	if (ACCESS_FBINFO(dead)) {
+		return -ENXIO;
+	}
+
+	if (con >= 0)
+		display = fb_display + con;
+	else
+		display = ACCESS_FBINFO(fbcon.disp);
+	if ((err = matroxfb_decode_var(PMINFO display, var, &visual, &cmap_len, &ydstorg)) != 0)
+		return err;
+	switch (var->activate & FB_ACTIVATE_MASK) {
+		case FB_ACTIVATE_TEST:	return 0;
+		case FB_ACTIVATE_NXTOPEN:	/* ?? */
+		case FB_ACTIVATE_NOW:	break;	/* continue */
+		default:		return -EINVAL; /* unknown */
+	}
+	if (con >= 0) {
+		chgvar = ((display->var.xres != var->xres) ||
+		    (display->var.yres != var->yres) ||
+                    (display->var.xres_virtual != var->xres_virtual) ||
+		    (display->var.yres_virtual != var->yres_virtual) ||
+		    (display->var.bits_per_pixel != var->bits_per_pixel) ||
+		    memcmp(&display->var.red, &var->red, sizeof(var->red)) ||
+		    memcmp(&display->var.green, &var->green, sizeof(var->green)) ||
+		    memcmp(&display->var.blue, &var->blue, sizeof(var->blue)));
+	} else {
+		chgvar = 0;
+	}
+	display->var = *var;
+	/* cmap */
+	display->screen_base = vaddr_va(ACCESS_FBINFO(video.vbase)) + ydstorg;
+	display->visual = visual;
+	display->ypanstep = 1;
+	display->ywrapstep = 0;
+	if (var->bits_per_pixel) {
+		display->type = FB_TYPE_PACKED_PIXELS;
+		display->type_aux = 0;
+		display->next_line = display->line_length = (var->xres_virtual * var->bits_per_pixel) >> 3;
+	} else {
+		display->type = FB_TYPE_TEXT;
+		display->type_aux = ACCESS_FBINFO(devflags.text_type_aux);
+		display->next_line = display->line_length = (var->xres_virtual / (fontwidth(display)?fontwidth(display):8)) * ACCESS_FBINFO(devflags.textstep);
+	}
+	display->can_soft_blank = 1;
+	display->inverse = ACCESS_FBINFO(devflags.inverse);
+	/* conp, fb_info, vrows, cursor_x, cursor_y, fgcol, bgcol */
+	/* next_plane, fontdata, _font*, userfont */
+	initMatrox(PMINFO display);	/* dispsw */
+	/* dispsw, scrollmode, yscroll */
+	/* fgshift, bgshift, charmask */
+	if (chgvar && info && info->changevar)
+		info->changevar(con);
+	if (con == ACCESS_FBINFO(currcon)) {
+		unsigned int pos;
+
+		ACCESS_FBINFO(curr.cmap_len) = cmap_len;
+		if (display->type == FB_TYPE_TEXT) {
+			/* textmode must be in first megabyte, so no ydstorg allowed */
+			ACCESS_FBINFO(curr.ydstorg.bytes) = 0;
+			ACCESS_FBINFO(curr.ydstorg.chunks) = 0;
+			ACCESS_FBINFO(curr.ydstorg.pixels) = 0;
+		} else {
+			ydstorg += ACCESS_FBINFO(devflags.ydstorg);
+			ACCESS_FBINFO(curr.ydstorg.bytes) = ydstorg;
+			ACCESS_FBINFO(curr.ydstorg.chunks) = ydstorg >> (isInterleave(MINFO)?3:2);
+			if (var->bits_per_pixel == 4)
+				ACCESS_FBINFO(curr.ydstorg.pixels) = ydstorg;
+			else
+				ACCESS_FBINFO(curr.ydstorg.pixels) = (ydstorg * 8) / var->bits_per_pixel;
+		}
+		ACCESS_FBINFO(curr.final_bppShift) = matroxfb_get_final_bppShift(PMINFO var->bits_per_pixel);
+		if (visual == MX_VISUAL_PSEUDOCOLOR) {
+			int i;
+
+			for (i = 0; i < 16; i++) {
+				int j;
+
+				j = color_table[i];
+				ACCESS_FBINFO(palette[i].red)   = default_red[j];
+				ACCESS_FBINFO(palette[i].green) = default_grn[j];
+				ACCESS_FBINFO(palette[i].blue)  = default_blu[j];
+			}
+		}
+
+		{	struct my_timming mt;
+			struct matrox_hw_state* hw;
+			struct matrox_hw_state* ohw;
+
+			matroxfb_var2my(var, &mt);
+			/* CRTC1 delays */
+			switch (var->bits_per_pixel) {
+				case  0:	mt.delay = 31 + 0; break;
+				case 16:	mt.delay = 21 + 8; break;
+				case 24:	mt.delay = 17 + 8; break;
+				case 32:	mt.delay = 16 + 8; break;
+				default:	mt.delay = 31 + 8; break;
+			}
+
+			hw = ACCESS_FBINFO(newhw);
+			ohw = ACCESS_FBINFO(currenthw);
+
+			/* copy last setting... */
+			memcpy(hw, ohw, sizeof(*hw));
+
+			del_timer(&ACCESS_FBINFO(cursor.timer));
+			ACCESS_FBINFO(cursor.state) = CM_ERASE;
+
+			ACCESS_FBINFO(hw_switch->init(PMINFO hw, &mt, display));
+			if (display->type == FB_TYPE_TEXT) {
+				if (fontheight(display))
+					pos = var->yoffset / fontheight(display) * display->next_line / ACCESS_FBINFO(devflags.textstep) + var->xoffset / (fontwidth(display)?fontwidth(display):8);
+				else
+					pos = 0;
+			} else {
+				pos = (var->yoffset * var->xres_virtual + var->xoffset) * ACCESS_FBINFO(curr.final_bppShift) / 32;
+				pos += ACCESS_FBINFO(curr.ydstorg.chunks);
+			}
+
+			hw->CRTC[0x0D] = pos & 0xFF;
+			hw->CRTC[0x0C] = (pos & 0xFF00) >> 8;
+			hw->CRTCEXT[0] = (hw->CRTCEXT[0] & 0xF0) | ((pos >> 16) & 0x0F) | ((pos >> 14) & 0x40);
+			hw->CRTCEXT[8] = pos >> 21;
+			if (ACCESS_FBINFO(output.ph) & MATROXFB_OUTPUT_CONN_PRIMARY) {
+				if (ACCESS_FBINFO(primout))
+					ACCESS_FBINFO(primout)->compute(MINFO, &mt, hw);
+			}
+			if (ACCESS_FBINFO(output.ph) & MATROXFB_OUTPUT_CONN_SECONDARY) {
+				down_read(&ACCESS_FBINFO(altout.lock));
+				if (ACCESS_FBINFO(altout.output))
+					ACCESS_FBINFO(altout.output)->compute(ACCESS_FBINFO(altout.device), &mt, hw);
+				up_read(&ACCESS_FBINFO(altout.lock));
+			}
+			ACCESS_FBINFO(hw_switch->restore(PMINFO hw, ohw, display));
+			if (ACCESS_FBINFO(output.ph) & MATROXFB_OUTPUT_CONN_PRIMARY) {
+				if (ACCESS_FBINFO(primout))
+					ACCESS_FBINFO(primout)->program(MINFO, hw);
+			}
+			if (ACCESS_FBINFO(output.ph) & MATROXFB_OUTPUT_CONN_SECONDARY) {
+				down_read(&ACCESS_FBINFO(altout.lock));
+				if (ACCESS_FBINFO(altout.output))
+					ACCESS_FBINFO(altout.output)->program(ACCESS_FBINFO(altout.device), hw);
+				up_read(&ACCESS_FBINFO(altout.lock));
+			}
+			ACCESS_FBINFO(cursor.redraw) = 1;
+			ACCESS_FBINFO(currenthw) = hw;
+			ACCESS_FBINFO(newhw) = ohw;
+			if (ACCESS_FBINFO(output.ph) & MATROXFB_OUTPUT_CONN_PRIMARY) {
+				if (ACCESS_FBINFO(primout))
+					ACCESS_FBINFO(primout)->start(MINFO);
+			}
+			if (ACCESS_FBINFO(output.ph) & MATROXFB_OUTPUT_CONN_SECONDARY) {
+				down_read(&ACCESS_FBINFO(altout.lock));
+				if (ACCESS_FBINFO(altout.output))
+					ACCESS_FBINFO(altout.output)->start(ACCESS_FBINFO(altout.device));
+				up_read(&ACCESS_FBINFO(altout.lock));
+			}
+			matrox_cfbX_init(PMINFO display);
+			do_install_cmap(PMINFO display);
+#if defined(CONFIG_FB_OF) && defined(CONFIG_FB_COMPAT_XPMAC)
+			if (console_fb_info == &ACCESS_FBINFO(fbcon)) {
+				int vmode, cmode;
+
+				display_info.width = var->xres;
+				display_info.height = var->yres;
+				display_info.depth = var->bits_per_pixel;
+				display_info.pitch = (var->xres_virtual)*(var->bits_per_pixel)/8;
+				if (mac_var_to_vmode(var, &vmode, &cmode))
+					display_info.mode = 0;
+				else
+					display_info.mode = vmode;
+				strcpy(display_info.name, ACCESS_FBINFO(matrox_name));
+				display_info.fb_address = ACCESS_FBINFO(video.base);
+				display_info.cmap_adr_address = 0;
+				display_info.cmap_data_address = 0;
+				display_info.disp_reg_address = ACCESS_FBINFO(mmio.base);
+			}
+#endif /* CONFIG_FB_OF && CONFIG_FB_COMPAT_XPMAC */
+		}
+	}
+	return 0;
+#undef minfo
+}
+
+static int matrox_getcolreg(unsigned regno, unsigned *red, unsigned *green,
+			    unsigned *blue, unsigned *transp,
+			    struct fb_info *info)
+{
+
+	DBG("matrox_getcolreg")
+
+#define minfo ((struct matrox_fb_info*)info)
+	/*
+	 *  Read a single color register and split it into colors/transparent.
+	 *  Return != 0 for invalid regno.
+	 */
+
+	if (regno >= ACCESS_FBINFO(curr.cmap_len))
+		return 1;
+
+	*red   = ACCESS_FBINFO(palette[regno].red);
+	*green = ACCESS_FBINFO(palette[regno].green);
+	*blue  = ACCESS_FBINFO(palette[regno].blue);
+	*transp = ACCESS_FBINFO(palette[regno].transp);
+	return 0;
+#undef minfo
+}
+
+static int matroxfb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
+			     struct fb_info *info)
+{
+#define minfo ((struct matrox_fb_info*)info)
+	struct display* dsp = (con < 0) ? ACCESS_FBINFO(fbcon.disp)
+					: fb_display + con;
+
+	DBG("matroxfb_get_cmap")
+
+	if (ACCESS_FBINFO(dead)) {
+		return -ENXIO;
+	}
+
+	if (con == ACCESS_FBINFO(currcon)) /* current console? */
+		return fb_get_cmap(cmap, kspc, matrox_getcolreg, info);
+	else if (dsp->cmap.len) /* non default colormap? */
+		fb_copy_cmap(&dsp->cmap, cmap, kspc ? 0 : 2);
+	else
+		fb_copy_cmap(fb_default_cmap(matroxfb_get_cmap_len(&dsp->var)),
+			     cmap, kspc ? 0 : 2);
+	return 0;
+#undef minfo
+}
+
+static int matroxfb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
+			     struct fb_info *info)
+{
+	unsigned int cmap_len;
+	struct display* dsp = (con < 0) ? info->disp : (fb_display + con);
+#define minfo ((struct matrox_fb_info*)info)
+
+	DBG("matroxfb_set_cmap")
+
+	if (ACCESS_FBINFO(dead)) {
+		return -ENXIO;
+	}
+
+	cmap_len = matroxfb_get_cmap_len(&dsp->var);
+	if (dsp->cmap.len != cmap_len) {
+		int err;
+
+		err = fb_alloc_cmap(&dsp->cmap, cmap_len, 0);
+		if (err)
+			return err;
+	}
+	if (con == ACCESS_FBINFO(currcon)) {			/* current console? */
+		return fb_set_cmap(cmap, kspc, matrox_setcolreg, info);
+	} else
+		fb_copy_cmap(cmap, &dsp->cmap, kspc ? 0 : 1);
+	return 0;
+#undef minfo
+}
+
+static int matroxfb_switch(int con, struct fb_info *info);
+
+static int matroxfb_get_vblank(CPMINFO struct fb_vblank *vblank)
+{
+	unsigned int sts1;
+
+	memset(vblank, 0, sizeof(*vblank));
+	vblank->flags = FB_VBLANK_HAVE_VCOUNT | FB_VBLANK_HAVE_VSYNC |
+			FB_VBLANK_HAVE_VBLANK | FB_VBLANK_HAVE_HBLANK;
+	sts1 = mga_inb(M_INSTS1);
+	vblank->vcount = mga_inl(M_VCOUNT);
+	/* BTW, on my PIII/450 with G400, reading M_INSTS1
+	   byte makes this call about 12% slower (1.70 vs. 2.05 us
+	   per ioctl()) */
+	if (sts1 & 1)
+		vblank->flags |= FB_VBLANK_HBLANKING;
+	if (sts1 & 8)
+		vblank->flags |= FB_VBLANK_VSYNCING;
+	if (vblank->count >= ACCESS_FBINFO(currcon_display)->var.yres)
+		vblank->flags |= FB_VBLANK_VBLANKING;
+	vblank->hcount = 0;
+	vblank->count = 0;
+	return 0;
+}
+
+static int matroxfb_ioctl(struct inode *inode, struct file *file,
+			  unsigned int cmd, unsigned long arg, int con,
+			  struct fb_info *info)
+{
+#define minfo ((struct matrox_fb_info*)info)
+	DBG("matroxfb_ioctl")
+
+	if (ACCESS_FBINFO(dead)) {
+		return -ENXIO;
+	}
+
+	switch (cmd) {
+		case FBIOGET_VBLANK:
+			{
+				struct fb_vblank vblank;
+				int err;
+
+				err = matroxfb_get_vblank(PMINFO &vblank);
+				if (err)
+					return err;
+				copy_to_user_ret((struct fb_vblank*)arg, &vblank, sizeof(vblank), -EFAULT);
+				return 0;
+			}
+		case MATROXFB_SET_OUTPUT_MODE:
+			{
+				struct matroxioc_output_mode mom;
+				int val;
+
+				copy_from_user_ret(&mom, (struct matroxioc_output_mode*)arg, sizeof(mom), -EFAULT);
+				if (mom.output >= sizeof(u_int32_t))
+					return -EINVAL;
+				switch (mom.output) {
+					case MATROXFB_OUTPUT_PRIMARY:
+						if (mom.mode != MATROXFB_OUTPUT_MODE_MONITOR)
+							return -EINVAL;
+						/* mode did not change... */
+						return 0;
+					case MATROXFB_OUTPUT_SECONDARY:
+						val = -EINVAL;
+						down_read(&ACCESS_FBINFO(altout.lock));
+						if (ACCESS_FBINFO(altout.output) && ACCESS_FBINFO(altout.device))
+							val = ACCESS_FBINFO(altout.output)->setmode(ACCESS_FBINFO(altout.device), mom.mode);
+						up_read(&ACCESS_FBINFO(altout.lock));
+						if (val != 1)
+							return val;
+						if (ACCESS_FBINFO(output.ph) & MATROXFB_OUTPUT_CONN_SECONDARY)
+							matroxfb_switch(ACCESS_FBINFO(currcon), info);
+						if (ACCESS_FBINFO(output.sh) & MATROXFB_OUTPUT_CONN_SECONDARY) {
+							struct matroxfb_dh_fb_info* crtc2;
+
+							down_read(&ACCESS_FBINFO(crtc2.lock));
+							crtc2 = (struct matroxfb_dh_fb_info*)(ACCESS_FBINFO(crtc2.info));
+							if (crtc2)
+								crtc2->fbcon.switch_con(crtc2->currcon, &crtc2->fbcon);
+							up_read(&ACCESS_FBINFO(crtc2.lock));
+						}
+						return 0;
+					default:
+						return -EINVAL;
+				}
+				return 0;
+			}
+		case MATROXFB_GET_OUTPUT_MODE:
+			{
+				struct matroxioc_output_mode mom;
+				int val;
+
+				copy_from_user_ret(&mom, (struct matroxioc_output_mode*)arg, sizeof(mom), -EFAULT);
+				if (mom.output >= sizeof(u_int32_t))
+					return -EINVAL;
+				switch (mom.output) {
+					case MATROXFB_OUTPUT_PRIMARY:
+						mom.mode = MATROXFB_OUTPUT_MODE_MONITOR;
+						break;
+					case MATROXFB_OUTPUT_SECONDARY:
+						val = -EINVAL;
+						down_read(&ACCESS_FBINFO(altout.lock));
+						if (ACCESS_FBINFO(altout.output) && ACCESS_FBINFO(altout.device))
+							val = ACCESS_FBINFO(altout.output)->getmode(ACCESS_FBINFO(altout.device), &mom.mode);
+						up_read(&ACCESS_FBINFO(altout.lock));
+						if (val)
+							return val;
+						break;
+					default:
+						return -EINVAL;
+				}
+				copy_to_user_ret((struct matroxioc_output_mode*)arg, &mom, sizeof(mom), -EFAULT);
+				return 0;
+			}
+		case MATROXFB_SET_OUTPUT_CONNECTION:
+			{
+				u_int32_t tmp;
+
+				copy_from_user_ret(&tmp, (u_int32_t*)arg, sizeof(tmp), -EFAULT);
+				if (tmp & ~ACCESS_FBINFO(output.all))
+					return -EINVAL;
+				if (tmp & ACCESS_FBINFO(output.sh))
+					return -EINVAL;
+				if (tmp == ACCESS_FBINFO(output.ph))
+					return 0;
+				ACCESS_FBINFO(output.ph) = tmp;
+				matroxfb_switch(ACCESS_FBINFO(currcon), info);
+				return 0;
+			}
+		case MATROXFB_GET_OUTPUT_CONNECTION:
+			{
+				put_user_ret(ACCESS_FBINFO(output.ph), (u_int32_t*)arg, -EFAULT);
+				return 0;
+			}
+		case MATROXFB_GET_AVAILABLE_OUTPUTS:
+			{
+				u_int32_t tmp;
+
+				tmp = ACCESS_FBINFO(output.all) & ~ACCESS_FBINFO(output.sh);
+				put_user_ret(tmp, (u_int32_t*)arg, -EFAULT);
+				return 0;
+			}
+		case MATROXFB_GET_ALL_OUTPUTS:
+			{
+				put_user_ret(ACCESS_FBINFO(output.all), (u_int32_t*)arg, -EFAULT);
+				return 0;
+			}
+	}
+	return -EINVAL;
+#undef minfo
+}
+
+static struct fb_ops matroxfb_ops = {
+	matroxfb_open,
+	matroxfb_release,
+	matroxfb_get_fix,
+	matroxfb_get_var,
+	matroxfb_set_var,
+	matroxfb_get_cmap,
+	matroxfb_set_cmap,
+	matroxfb_pan_display,
+	matroxfb_ioctl,
+	NULL,			/* mmap */
+	NULL,			/* rasterimg */
+};
+
+static int matroxfb_switch(int con, struct fb_info *info)
+{
+#define minfo ((struct matrox_fb_info*)info)
+	struct fb_cmap* cmap;
+	struct display *p;
+
+	DBG("matroxfb_switch");
+
+	if (ACCESS_FBINFO(currcon) >= 0) {
+		/* Do we have to save the colormap? */
+		cmap = &(ACCESS_FBINFO(currcon_display)->cmap);
+		dprintk(KERN_DEBUG "switch1: con = %d, cmap.len = %d\n", ACCESS_FBINFO(currcon), cmap->len);
+
+		if (cmap->len) {
+			dprintk(KERN_DEBUG "switch1a: %p %p %p %p\n", cmap->red, cmap->green, cmap->blue, cmap->transp);
+			fb_get_cmap(cmap, 1, matrox_getcolreg, info);
+#ifdef DEBUG
+			if (cmap->red) {
+				dprintk(KERN_DEBUG "switch1r: %X\n", cmap->red[0]);
+			}
+#endif
+		}
+	}
+	ACCESS_FBINFO(currcon) = con;
+	if (con < 0)
+		p = ACCESS_FBINFO(fbcon.disp);
+	else
+		p = fb_display + con;
+	ACCESS_FBINFO(currcon_display) = p;
+	p->var.activate = FB_ACTIVATE_NOW;
+#ifdef DEBUG
+	cmap = &p->cmap;
+	dprintk(KERN_DEBUG "switch2: con = %d, cmap.len = %d\n", con, cmap->len);
+	dprintk(KERN_DEBUG "switch2a: %p %p %p %p\n", cmap->red, cmap->green, cmap->blue, cmap->transp);
+	if (p->cmap.red) {
+		dprintk(KERN_DEBUG "switch2r: %X\n", cmap->red[0]);
+	}
+#endif
+	matroxfb_set_var(&p->var, con, info);
+#ifdef DEBUG
+	dprintk(KERN_DEBUG "switch3: con = %d, cmap.len = %d\n", con, cmap->len);
+	dprintk(KERN_DEBUG "switch3a: %p %p %p %p\n", cmap->red, cmap->green, cmap->blue, cmap->transp);
+	if (p->cmap.red) {
+		dprintk(KERN_DEBUG "switch3r: %X\n", cmap->red[0]);
+	}
+#endif
+	return 0;
+#undef minfo
+}
+
+/* 0 unblank, 1 blank, 2 no vsync, 3 no hsync, 4 off */
+
+static void matroxfb_blank(int blank, struct fb_info *info)
+{
+#define minfo ((struct matrox_fb_info*)info)
+	int seq;
+	int crtc;
+	CRITFLAGS
+
+	DBG("matroxfb_blank")
+
+	if (ACCESS_FBINFO(dead))
+		return;
+
+	switch (blank) {
+		case 1:  seq = 0x20; crtc = 0x00; break; /* works ??? */
+		case 2:  seq = 0x20; crtc = 0x10; break;
+		case 3:  seq = 0x20; crtc = 0x20; break;
+		case 4:  seq = 0x20; crtc = 0x30; break;
+		default: seq = 0x00; crtc = 0x00; break;
+	}
+
+	CRITBEGIN
+
+	mga_outb(M_SEQ_INDEX, 1);
+	mga_outb(M_SEQ_DATA, (mga_inb(M_SEQ_DATA) & ~0x20) | seq);
+	mga_outb(M_EXTVGA_INDEX, 1);
+	mga_outb(M_EXTVGA_DATA, (mga_inb(M_EXTVGA_DATA) & ~0x30) | crtc);
+
+	CRITEND
+
+#undef minfo
+}
+
+#define RSDepth(X)	(((X) >> 8) & 0x0F)
+#define RS8bpp		0x1
+#define RS15bpp		0x2
+#define RS16bpp		0x3
+#define RS32bpp		0x4
+#define RS4bpp		0x5
+#define RS24bpp		0x6
+#define RSText		0x7
+#define RSText8		0x8
+/* 9-F */
+static struct { struct fb_bitfield red, green, blue, transp; int bits_per_pixel; } colors[] = {
+	{ {  0, 8, 0}, { 0, 8, 0}, { 0, 8, 0}, {  0, 0, 0},  8 },
+	{ { 10, 5, 0}, { 5, 5, 0}, { 0, 5, 0}, { 15, 1, 0}, 16 },
+	{ { 11, 5, 0}, { 5, 6, 0}, { 0, 5, 0}, {  0, 0, 0}, 16 },
+	{ { 16, 8, 0}, { 8, 8, 0}, { 0, 8, 0}, { 24, 8, 0}, 32 },
+	{ {  0, 8, 0}, { 0, 8, 0}, { 0, 8, 0}, {  0, 0, 0},  4 },
+	{ { 16, 8, 0}, { 8, 8, 0}, { 0, 8, 0}, {  0, 0, 0}, 24 },
+	{ {  0, 6, 0}, { 0, 6, 0}, { 0, 6, 0}, {  0, 0, 0},  0 },	/* textmode with (default) VGA8x16 */
+	{ {  0, 6, 0}, { 0, 6, 0}, { 0, 6, 0}, {  0, 0, 0},  0 },	/* textmode hardwired to VGA8x8 */
+};
+
+/* initialized by setup, see explanation at end of file (search for MODULE_PARM_DESC) */
+static unsigned int mem = 0;		/* "matrox:mem:xxxxxM" */
+static int option_precise_width = 1;	/* cannot be changed, option_precise_width==0 must imply noaccel */
+static int inv24 = 0;			/* "matrox:inv24" */
+static int cross4MB = -1;		/* "matrox:cross4MB" */
+static int disabled = 0;		/* "matrox:disabled" */
+static int noaccel = 0;			/* "matrox:noaccel" */
+static int nopan = 0;			/* "matrox:nopan" */
+static int no_pci_retry = 0;		/* "matrox:nopciretry" */
+static int novga = 0;			/* "matrox:novga" */
+static int nobios = 0;			/* "matrox:nobios" */
+static int noinit = 1;			/* "matrox:init" */
+static int inverse = 0;			/* "matrox:inverse" */
+static int hwcursor = 1;		/* "matrox:nohwcursor" */
+static int blink = 1;			/* "matrox:noblink" */
+static int sgram = 0;			/* "matrox:sgram" */
+#ifdef CONFIG_MTRR
+static int mtrr = 1;			/* "matrox:nomtrr" */
+#endif
+static int grayscale = 0;		/* "matrox:grayscale" */
+static unsigned int fastfont = 0;	/* "matrox:fastfont:xxxxx" */
+static int dev = -1;			/* "matrox:dev:xxxxx" */
+static unsigned int vesa = ~0;		/* "matrox:vesa:xxxxx" */
+static int depth = -1;			/* "matrox:depth:xxxxx" */
+static unsigned int xres = 0;		/* "matrox:xres:xxxxx" */
+static unsigned int yres = 0;		/* "matrox:yres:xxxxx" */
+static unsigned int upper = ~0;		/* "matrox:upper:xxxxx" */
+static unsigned int lower = ~0;		/* "matrox:lower:xxxxx" */
+static unsigned int vslen = 0;		/* "matrox:vslen:xxxxx" */
+static unsigned int left = ~0;		/* "matrox:left:xxxxx" */
+static unsigned int right = ~0;		/* "matrox:right:xxxxx" */
+static unsigned int hslen = 0;		/* "matrox:hslen:xxxxx" */
+static unsigned int pixclock = 0;	/* "matrox:pixclock:xxxxx" */
+static int sync = -1;			/* "matrox:sync:xxxxx" */
+static unsigned int fv = 0;		/* "matrox:fv:xxxxx" */
+static unsigned int fh = 0;		/* "matrox:fh:xxxxxk" */
+static unsigned int maxclk = 0;		/* "matrox:maxclk:xxxxM" */
+static char fontname[64];		/* "matrox:font:xxxxx" */
+
+#ifndef MODULE
+static char videomode[64];		/* "matrox:mode:xxxxx" or "matrox:xxxxx" */
+#endif
+
+static int matroxfb_getmemory(WPMINFO unsigned int maxSize, unsigned int *realSize){
+	vaddr_t vm;
+	unsigned int offs;
+	unsigned int offs2;
+	unsigned char store;
+	unsigned char bytes[32];
+	unsigned char* tmp;
+
+	DBG("matroxfb_getmemory")
+
+	vm = ACCESS_FBINFO(video.vbase);
+	maxSize &= ~0x1FFFFF;	/* must be X*2MB (really it must be 2 or X*4MB) */
+	/* at least 2MB */
+	if (maxSize < 0x0200000) return 0;
+	if (maxSize > 0x2000000) maxSize = 0x2000000;
+
+	mga_outb(M_EXTVGA_INDEX, 0x03);
+	mga_outb(M_EXTVGA_DATA, mga_inb(M_EXTVGA_DATA) | 0x80);
+
+	store = mga_readb(vm, 0x1234);
+	tmp = bytes;
+	for (offs = 0x100000; offs < maxSize; offs += 0x200000)
+		*tmp++ = mga_readb(vm, offs);
+	for (offs = 0x100000; offs < maxSize; offs += 0x200000)
+		mga_writeb(vm, offs, 0x02);
+	if (ACCESS_FBINFO(features.accel.has_cacheflush))
+		mga_outb(M_CACHEFLUSH, 0x00);
+	else
+		mga_writeb(vm, 0x1234, 0x99);
+	for (offs = 0x100000; offs < maxSize; offs += 0x200000) {
+		if (mga_readb(vm, offs) != 0x02)
+			break;
+		mga_writeb(vm, offs, mga_readb(vm, offs) - 0x02);
+		if (mga_readb(vm, offs))
+			break;
+	}
+	tmp = bytes;
+	for (offs2 = 0x100000; offs2 < maxSize; offs2 += 0x200000)
+		mga_writeb(vm, offs2, *tmp++);
+	mga_writeb(vm, 0x1234, store);
+
+	mga_outb(M_EXTVGA_INDEX, 0x03);
+	mga_outb(M_EXTVGA_DATA, mga_inb(M_EXTVGA_DATA) & ~0x80);
+
+	*realSize = offs - 0x100000;
+#ifdef CONFIG_FB_MATROX_MILLENIUM
+	ACCESS_FBINFO(interleave) = !(!isMillenium(MINFO) || ((offs - 0x100000) & 0x3FFFFF));
+#endif
+	return 1;
+}
+
+struct video_board {
+	int maxvram;
+	int maxdisplayable;
+	int accelID;
+	struct matrox_switch* lowlevel;
+		 };
+#ifdef CONFIG_FB_MATROX_MILLENIUM
+static struct video_board vbMillennium		= {0x0800000, 0x0800000, FB_ACCEL_MATROX_MGA2064W,	&matrox_millennium};
+static struct video_board vbMillennium2		= {0x1000000, 0x0800000, FB_ACCEL_MATROX_MGA2164W,	&matrox_millennium};
+static struct video_board vbMillennium2A	= {0x1000000, 0x0800000, FB_ACCEL_MATROX_MGA2164W_AGP,	&matrox_millennium};
+#endif	/* CONFIG_FB_MATROX_MILLENIUM */
+#ifdef CONFIG_FB_MATROX_MYSTIQUE
+static struct video_board vbMystique		= {0x0800000, 0x0800000, FB_ACCEL_MATROX_MGA1064SG,	&matrox_mystique};
+#endif	/* CONFIG_FB_MATROX_MYSTIQUE */
+#ifdef CONFIG_FB_MATROX_G100
+static struct video_board vbG100		= {0x0800000, 0x0800000, FB_ACCEL_MATROX_MGAG100,	&matrox_G100};
+static struct video_board vbG200		= {0x1000000, 0x1000000, FB_ACCEL_MATROX_MGAG200,	&matrox_G100};
+#ifdef CONFIG_FB_MATROX_32MB
+/* from doc it looks like that accelerator can draw only to low 16MB :-( Direct accesses & displaying are OK for
+   whole 32MB */
+static struct video_board vbG400		= {0x2000000, 0x1000000, FB_ACCEL_MATROX_MGAG400,	&matrox_G100};
+#else
+static struct video_board vbG400		= {0x2000000, 0x1000000, FB_ACCEL_MATROX_MGAG400,	&matrox_G100};
+#endif
+#endif
+
+#define DEVF_VIDEO64BIT		0x0001
+#define	DEVF_SWAPS		0x0002
+#define DEVF_MILLENNIUM		0x0004
+#define	DEVF_MILLENNIUM2	0x0008
+#define DEVF_CROSS4MB		0x0010
+#define DEVF_TEXT4B		0x0020
+#define DEVF_DDC_8_2		0x0040
+#define DEVF_DMA		0x0080
+#define DEVF_SUPPORT32MB	0x0100
+#define DEVF_ANY_VXRES		0x0200
+#define DEVF_TEXT16B		0x0400
+#define DEVF_CRTC2		0x0800
+#define DEVF_MAVEN_CAPABLE	0x1000
+
+#define DEVF_GCORE	(DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB | DEVF_DDC_8_2)
+#define DEVF_G100	(DEVF_GCORE) /* no doc, no vxres... */
+#define DEVF_G200	(DEVF_GCORE | DEVF_ANY_VXRES | DEVF_MAVEN_CAPABLE)
+#define DEVF_G400	(DEVF_GCORE | DEVF_ANY_VXRES | DEVF_MAVEN_CAPABLE | DEVF_SUPPORT32MB | DEVF_TEXT16B | DEVF_CRTC2)
+
+static struct board {
+	unsigned short vendor, device, rev, svid, sid;
+	unsigned int flags;
+	unsigned int maxclk;
+	struct video_board* base;
+	const char* name;
+		} dev_list[] = {
+#ifdef CONFIG_FB_MATROX_MILLENIUM
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL,	0xFF,
+		0,			0,
+		DEVF_MILLENNIUM | DEVF_TEXT4B,
+		230000,
+		&vbMillennium,
+		"Millennium (PCI)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL_2,	0xFF,
+		0,			0,
+		DEVF_MILLENNIUM | DEVF_MILLENNIUM2 | DEVF_SWAPS,
+		220000,
+		&vbMillennium2,
+		"Millennium II (PCI)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL_2_AGP,	0xFF,
+		0,			0,
+		DEVF_MILLENNIUM | DEVF_MILLENNIUM2 | DEVF_SWAPS,
+		250000,
+		&vbMillennium2A,
+		"Millennium II (AGP)"},
+#endif
+#ifdef CONFIG_FB_MATROX_MYSTIQUE
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS,	0x02,
+		0,			0,
+		DEVF_VIDEO64BIT,
+		180000,
+		&vbMystique,
+		"Mystique (PCI)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS,	0xFF,
+		0,			0,
+		DEVF_VIDEO64BIT | DEVF_SWAPS,
+		220000,
+		&vbMystique,
+		"Mystique 220 (PCI)"},
+#endif
+#ifdef CONFIG_FB_MATROX_G100
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100,	0xFF,
+		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MGA_G100_PCI,
+		DEVF_G100,
+		230000,
+		&vbG100,
+		"MGA-G100 (PCI)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100,	0xFF,
+		0,			0,
+		DEVF_G100,
+		230000,
+		&vbG100,
+		"unknown G100 (PCI)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_AGP,	0xFF,
+		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_GENERIC,
+		DEVF_G100,
+		230000,
+		&vbG100,
+		"MGA-G100 (AGP)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_AGP,	0xFF,
+		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MGA_G100_AGP,
+		DEVF_G100,
+		230000,
+		&vbG100,
+		"MGA-G100 (AGP)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_AGP,	0xFF,
+		PCI_SS_VENDOR_ID_SIEMENS_NIXDORF,	PCI_SS_ID_SIEMENS_MGA_G100_AGP,
+		DEVF_G100,
+		230000,
+		&vbG100,
+		"MGA-G100 (AGP)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_AGP,	0xFF,
+		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_PRODUCTIVA_G100_AGP,
+		DEVF_G100,
+		230000,
+		&vbG100,
+		"Productiva G100 (AGP)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_AGP,	0xFF,
+		0,			0,
+		DEVF_G100,
+		230000,
+		&vbG100,
+		"unknown G100 (AGP)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_PCI,	0xFF,
+		0,			0,
+		DEVF_G200,
+		250000,
+		&vbG200,
+		"unknown G200 (PCI)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
+		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_GENERIC,
+		DEVF_G200,
+		220000,
+		&vbG200,
+		"MGA-G200 (AGP)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
+		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MYSTIQUE_G200_AGP,
+		DEVF_G200,
+		230000,
+		&vbG200,
+		"Mystique G200 (AGP)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
+		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MILLENIUM_G200_AGP,
+		DEVF_G200,
+		250000,
+		&vbG200,
+		"Millennium G200 (AGP)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
+		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MARVEL_G200_AGP,
+		DEVF_G200,
+		230000,
+		&vbG200,
+		"Marvel G200 (AGP)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
+		PCI_SS_VENDOR_ID_SIEMENS_NIXDORF,	PCI_SS_ID_SIEMENS_MGA_G200_AGP,
+		DEVF_G200,
+		230000,
+		&vbG200,
+		"MGA-G200 (AGP)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
+		0,			0,
+		DEVF_G200,
+		230000,
+		&vbG200,
+		"unknown G200 (AGP)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G400_AGP,	0xFF,
+		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MILLENNIUM_G400_MAX_AGP,
+		DEVF_G400,
+		360000,
+		&vbG400,
+		"Millennium G400 MAX (AGP)"},
+	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G400_AGP,	0xFF,
+		0,			0,
+		DEVF_G400,
+		300000,
+		&vbG400,
+		"unknown G400 (AGP)"},
+#endif
+	{0,			0,				0xFF,
+		0,			0,
+		0,
+		0,
+		NULL,
+		NULL}};
+
+#ifndef MODULE
+static struct fb_videomode defaultmode = {
+	/* 640x480 @ 60Hz, 31.5 kHz */
+	NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
+	0, FB_VMODE_NONINTERLACED
+};
+#endif /* !MODULE */
+
+static int hotplug = 0;
+
+static int initMatrox2(WPMINFO struct display* d, struct board* b){
+	unsigned long ctrlptr_phys = 0;
+	unsigned long video_base_phys = 0;
+	unsigned int memsize;
+	struct matrox_hw_state* hw = ACCESS_FBINFO(currenthw);
+	int err;
+
+	DBG("initMatrox2")
+
+	/* set default values... */
+	vesafb_defined.accel_flags = FB_ACCELF_TEXT;
+
+	ACCESS_FBINFO(hw_switch) = b->base->lowlevel;
+	ACCESS_FBINFO(devflags.accelerator) = b->base->accelID;
+	ACCESS_FBINFO(max_pixel_clock) = b->maxclk;
+
+	printk(KERN_INFO "matroxfb: Matrox %s detected\n", b->name);
+	ACCESS_FBINFO(capable.plnwt) = 1;
+	ACCESS_FBINFO(devflags.video64bits) = b->flags & DEVF_VIDEO64BIT;
+	if (b->flags & DEVF_TEXT4B) {
+		ACCESS_FBINFO(devflags.vgastep) = 4;
+		ACCESS_FBINFO(devflags.textmode) = 4;
+		ACCESS_FBINFO(devflags.text_type_aux) = FB_AUX_TEXT_MGA_STEP16;
+	} else if (b->flags & DEVF_TEXT16B) {
+		ACCESS_FBINFO(devflags.vgastep) = 16;
+		ACCESS_FBINFO(devflags.textmode) = 1;
+		ACCESS_FBINFO(devflags.text_type_aux) = FB_AUX_TEXT_MGA_STEP16;
+	} else {
+		ACCESS_FBINFO(devflags.vgastep) = 8;
+		ACCESS_FBINFO(devflags.textmode) = 1;
+		ACCESS_FBINFO(devflags.text_type_aux) = FB_AUX_TEXT_MGA_STEP8;
+	}
+#ifdef CONFIG_FB_MATROX_32MB
+	ACCESS_FBINFO(devflags.support32MB) = b->flags & DEVF_SUPPORT32MB;
+#endif
+	ACCESS_FBINFO(devflags.precise_width) = !(b->flags & DEVF_ANY_VXRES);
+	ACCESS_FBINFO(devflags.crtc2) = b->flags & DEVF_CRTC2;
+	ACCESS_FBINFO(devflags.maven_capable) = b->flags & DEVF_MAVEN_CAPABLE;
+	ACCESS_FBINFO(devflags.textstep) = ACCESS_FBINFO(devflags.vgastep) * ACCESS_FBINFO(devflags.textmode);
+	ACCESS_FBINFO(devflags.textvram) = 65536 / ACCESS_FBINFO(devflags.textmode);
+
+	if (ACCESS_FBINFO(capable.cross4MB) < 0)
+		ACCESS_FBINFO(capable.cross4MB) = b->flags & DEVF_CROSS4MB;
+	if (b->flags & DEVF_SWAPS) {
+		ctrlptr_phys = ACCESS_FBINFO(pcidev)->resource[1].start;
+		video_base_phys = ACCESS_FBINFO(pcidev)->resource[0].start;
+	} else {
+		ctrlptr_phys = ACCESS_FBINFO(pcidev)->resource[0].start;
+		video_base_phys = ACCESS_FBINFO(pcidev)->resource[1].start;
+	}
+	err = -EINVAL;
+	if (!ctrlptr_phys) {
+		printk(KERN_ERR "matroxfb: control registers are not available, matroxfb disabled\n");
+		goto fail;
+	}
+	if (!video_base_phys) {
+		printk(KERN_ERR "matroxfb: video RAM is not available in PCI address space, matroxfb disabled\n");
+		goto fail;
+	}
+	memsize = b->base->maxvram;
+	if (!request_mem_region(ctrlptr_phys, 16384, "matroxfb MMIO")) {
+		goto fail;
+	}
+	if (!request_mem_region(video_base_phys, memsize, "matroxfb FB")) {
+		goto failCtrlMR;
+	}
+	ACCESS_FBINFO(video.len_maximum) = memsize;
+	/* convert mem (autodetect k, M) */
+	if (mem < 1024) mem *= 1024;
+	if (mem < 0x00100000) mem *= 1024;
+
+	if (mem && (mem < memsize))
+		memsize = mem;
+	err = -ENOMEM;
+	if (mga_ioremap(ctrlptr_phys, 16384, MGA_IOREMAP_MMIO, &ACCESS_FBINFO(mmio.vbase))) {
+		printk(KERN_ERR "matroxfb: cannot ioremap(%lX, 16384), matroxfb disabled\n", ctrlptr_phys);
+		goto failVideoMR;
+	}
+	ACCESS_FBINFO(mmio.base) = ctrlptr_phys;
+	ACCESS_FBINFO(mmio.len) = 16384;
+	ACCESS_FBINFO(video.base) = video_base_phys;
+	if (mga_ioremap(video_base_phys, memsize, MGA_IOREMAP_FB, &ACCESS_FBINFO(video.vbase))) {
+		printk(KERN_ERR "matroxfb: cannot ioremap(%lX, %d), matroxfb disabled\n",
+			video_base_phys, memsize);
+		goto failCtrlIO;
+	}
+	{
+		u_int32_t cmd;
+		u_int32_t mga_option;
+
+		pci_read_config_dword(ACCESS_FBINFO(pcidev), PCI_OPTION_REG, &mga_option);
+		pci_read_config_dword(ACCESS_FBINFO(pcidev), PCI_COMMAND, &cmd);
+		mga_option &= 0x7FFFFFFF; /* clear BIG_ENDIAN */
+		mga_option |= MX_OPTION_BSWAP;
+                /* disable palette snooping */
+                cmd &= ~PCI_COMMAND_VGA_PALETTE;
+		if (pci_find_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, NULL)) {
+			if (!(mga_option & 0x20000000) && !ACCESS_FBINFO(devflags.nopciretry)) {
+				printk(KERN_WARNING "matroxfb: Disabling PCI retries due to i82437 present\n");
+			}
+			mga_option |= 0x20000000;
+			ACCESS_FBINFO(devflags.nopciretry) = 1;
+		}
+		pci_write_config_dword(ACCESS_FBINFO(pcidev), PCI_COMMAND, cmd);
+		pci_write_config_dword(ACCESS_FBINFO(pcidev), PCI_OPTION_REG, mga_option);
+		hw->MXoptionReg = mga_option;
+
+		/* select non-DMA memory for PCI_MGA_DATA, otherwise dump of PCI cfg space can lock PCI bus */
+		/* maybe preinit() candidate, but it is same... for all devices... at this time... */
+		pci_write_config_dword(ACCESS_FBINFO(pcidev), PCI_MGA_INDEX, 0x00003C00);
+	}
+
+	err = -ENXIO;
+	if (ACCESS_FBINFO(hw_switch)->preinit(PMINFO hw)) {
+		goto failVideoIO;
+	}
+
+	err = -ENOMEM;
+	if (!matroxfb_getmemory(PMINFO memsize, &ACCESS_FBINFO(video.len)) || !ACCESS_FBINFO(video.len)) {
+		printk(KERN_ERR "matroxfb: cannot determine memory size\n");
+		goto failVideoIO;
+	}
+	ACCESS_FBINFO(devflags.ydstorg) = 0;
+
+	ACCESS_FBINFO(currcon) = -1;
+	ACCESS_FBINFO(currcon_display) = d;
+	mga_iounmap(ACCESS_FBINFO(video.vbase));
+	ACCESS_FBINFO(video.base) = video_base_phys;
+	if (mga_ioremap(video_base_phys, ACCESS_FBINFO(video.len), MGA_IOREMAP_FB, &ACCESS_FBINFO(video.vbase))) {
+		printk(KERN_ERR "matroxfb: cannot ioremap(%lX, %d), matroxfb disabled\n",
+			video_base_phys, ACCESS_FBINFO(video.len));
+		goto failCtrlIO;
+	}
+	ACCESS_FBINFO(video.len_usable) = ACCESS_FBINFO(video.len);
+	if (ACCESS_FBINFO(video.len_usable) > b->base->maxdisplayable)
+		ACCESS_FBINFO(video.len_usable) = b->base->maxdisplayable;
+#ifdef CONFIG_MTRR
+	if (mtrr) {
+		ACCESS_FBINFO(mtrr.vram) = mtrr_add(video_base_phys, ACCESS_FBINFO(video.len), MTRR_TYPE_WRCOMB, 1);
+		ACCESS_FBINFO(mtrr.vram_valid) = 1;
+		printk(KERN_INFO "matroxfb: MTRR's turned on\n");
+	}
+#endif	/* CONFIG_MTRR */
+
+	if (!ACCESS_FBINFO(devflags.novga))
+		request_region(0x3C0, 32, "matrox");
+	ACCESS_FBINFO(hw_switch->reset(PMINFO hw));
+
+	ACCESS_FBINFO(fbcon.monspecs.hfmin) = 0;
+	ACCESS_FBINFO(fbcon.monspecs.hfmax) = fh;
+	ACCESS_FBINFO(fbcon.monspecs.vfmin) = 0;
+	ACCESS_FBINFO(fbcon.monspecs.vfmax) = fv;
+	ACCESS_FBINFO(fbcon.monspecs.dpms) = 0;	/* TBD */
+
+	/* static settings */
+	if ((depth == RSText8) && (!*ACCESS_FBINFO(fbcon.fontname))) {
+		strcpy(ACCESS_FBINFO(fbcon.fontname), "VGA8x8");
+	}
+	vesafb_defined.red = colors[depth-1].red;
+	vesafb_defined.green = colors[depth-1].green;
+	vesafb_defined.blue = colors[depth-1].blue;
+	vesafb_defined.bits_per_pixel = colors[depth-1].bits_per_pixel;
+	vesafb_defined.grayscale = grayscale;
+	vesafb_defined.vmode = 0;
+	if (noaccel)
+		vesafb_defined.accel_flags &= ~FB_ACCELF_TEXT;
+
+	strcpy(ACCESS_FBINFO(fbcon.modename), "MATROX VGA");
+	ACCESS_FBINFO(fbcon.changevar) = NULL;
+	ACCESS_FBINFO(fbcon.node) = -1;
+	ACCESS_FBINFO(fbcon.fbops) = &matroxfb_ops;
+	ACCESS_FBINFO(fbcon.disp) = d;
+	ACCESS_FBINFO(fbcon.switch_con) = &matroxfb_switch;
+	ACCESS_FBINFO(fbcon.updatevar) = &matroxfb_updatevar;
+	ACCESS_FBINFO(fbcon.blank) = &matroxfb_blank;
+	/* after __init time we are like module... no logo */
+	ACCESS_FBINFO(fbcon.flags) = hotplug ? FBINFO_FLAG_MODULE : FBINFO_FLAG_DEFAULT;
+	ACCESS_FBINFO(video.len_usable) &= PAGE_MASK;
+
+#ifndef MODULE
+	/* mode database is marked __init!!! */
+	if (!hotplug) {
+		fb_find_mode(&vesafb_defined, &ACCESS_FBINFO(fbcon), videomode[0]?videomode:NULL,
+			NULL, 0, &defaultmode, vesafb_defined.bits_per_pixel);
+	}
+#endif /* !MODULE */
+
+	/* mode modifiers */
+	if (hslen)
+		vesafb_defined.hsync_len = hslen;
+	if (vslen)
+		vesafb_defined.vsync_len = vslen;
+	if (left != ~0)
+		vesafb_defined.left_margin = left;
+	if (right != ~0)
+		vesafb_defined.right_margin = right;
+	if (upper != ~0)
+		vesafb_defined.upper_margin = upper;
+	if (lower != ~0)
+		vesafb_defined.lower_margin = lower;
+	if (xres)
+		vesafb_defined.xres = xres;
+	if (yres)
+		vesafb_defined.yres = yres;
+	if (sync != -1)
+		vesafb_defined.sync = sync;
+	else if (vesafb_defined.sync == ~0) {
+		vesafb_defined.sync = 0;
+		if (yres < 400)
+			vesafb_defined.sync |= FB_SYNC_HOR_HIGH_ACT;
+		else if (yres < 480)
+			vesafb_defined.sync |= FB_SYNC_VERT_HIGH_ACT;
+	}
+
+	/* fv, fh, maxclk limits was specified */
+	{
+		unsigned int tmp;
+
+		if (fv) {
+			tmp = fv * (vesafb_defined.upper_margin + vesafb_defined.yres
+			          + vesafb_defined.lower_margin + vesafb_defined.vsync_len);
+			if ((tmp < fh) || (fh == 0)) fh = tmp;
+		}
+		if (fh) {
+			tmp = fh * (vesafb_defined.left_margin + vesafb_defined.xres
+			          + vesafb_defined.right_margin + vesafb_defined.hsync_len);
+			if ((tmp < maxclk) || (maxclk == 0)) maxclk = tmp;
+		}
+		maxclk = (maxclk + 499) / 500;
+		if (maxclk) {
+			tmp = (2000000000 + maxclk) / maxclk;
+			if (tmp > pixclock) pixclock = tmp;
+		}
+	}
+	if (pixclock) {
+		if (pixclock < 2000)		/* > 500MHz */
+			pixclock = 4000;	/* 250MHz */
+		if (pixclock > 1000000)
+			pixclock = 1000000;	/* 1MHz */
+		vesafb_defined.pixclock = pixclock;
+	}
+
+	/* FIXME: Where to move this?! */
+#if defined(CONFIG_FB_OF)
+#if defined(CONFIG_FB_COMPAT_XPMAC)
+	strcpy(ACCESS_FBINFO(matrox_name), "MTRX,");	/* OpenFirmware naming convension */
+	strncat(ACCESS_FBINFO(matrox_name), b->name, 26);
+	if (!console_fb_info)
+		console_fb_info = &ACCESS_FBINFO(fbcon);
+#endif
+	if ((xres <= 640) && (yres <= 480)) {
+		struct fb_var_screeninfo var;
+		if (default_vmode == VMODE_NVRAM) {
+			default_vmode = nvram_read_byte(NV_VMODE);
+			if (default_vmode <= 0 || default_vmode > VMODE_MAX)
+				default_vmode = VMODE_CHOOSE;
+		}
+		if (default_vmode <= 0 || default_vmode > VMODE_MAX)
+			default_vmode = VMODE_640_480_60;
+		if (default_cmode == CMODE_NVRAM)
+			default_cmode = nvram_read_byte(NV_CMODE);
+		if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
+			default_cmode = CMODE_8;
+		if (!mac_vmode_to_var(default_vmode, default_cmode, &var)) {
+			var.accel_flags = vesafb_defined.accel_flags;
+			var.xoffset = var.yoffset = 0;
+			vesafb_defined = var; /* Note: mac_vmode_to_var() doesnot set all parameters */
+		}
+	}
+#endif
+	vesafb_defined.xres_virtual = vesafb_defined.xres;
+	if (nopan) {
+		vesafb_defined.yres_virtual = vesafb_defined.yres;
+	} else {
+		vesafb_defined.yres_virtual = 65536; /* large enough to be INF, but small enough
+							to yres_virtual * xres_virtual < 2^32 */
+	}
+	err = -EINVAL;
+	if (matroxfb_set_var(&vesafb_defined, -2, &ACCESS_FBINFO(fbcon))) {
+		printk(KERN_ERR "matroxfb: cannot set required parameters\n");
+		goto failVideoIO;
+	}
+
+	printk(KERN_INFO "matroxfb: %dx%dx%dbpp (virtual: %dx%d)\n",
+		vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel,
+		vesafb_defined.xres_virtual, vesafb_defined.yres_virtual);
+	printk(KERN_INFO "matroxfb: framebuffer at 0x%lX, mapped to 0x%p, size %d\n",
+		ACCESS_FBINFO(video.base), vaddr_va(ACCESS_FBINFO(video.vbase)), ACCESS_FBINFO(video.len));
+
+/* We do not have to set currcon to 0... register_framebuffer do it for us on first console
+ * and we do not want currcon == 0 for subsequent framebuffers */
+
+	if (register_framebuffer(&ACCESS_FBINFO(fbcon)) < 0) {
+		goto failVideoIO;
+	}
+	printk("fb%d: %s frame buffer device\n",
+	       GET_FB_IDX(ACCESS_FBINFO(fbcon.node)), ACCESS_FBINFO(fbcon.modename));
+	if (ACCESS_FBINFO(currcon) < 0) {
+		/* there is no console on this fb... but we have to initialize hardware
+		 * until someone tells me what is proper thing to do */
+		printk(KERN_INFO "fb%d: initializing hardware\n",
+			GET_FB_IDX(ACCESS_FBINFO(fbcon.node)));
+		matroxfb_set_var(&vesafb_defined, -1, &ACCESS_FBINFO(fbcon));
+	}
+	return 0;
+failVideoIO:;
+	mga_iounmap(ACCESS_FBINFO(video.vbase));
+failCtrlIO:;
+	mga_iounmap(ACCESS_FBINFO(mmio.vbase));
+failVideoMR:;
+	release_mem_region(video_base_phys, ACCESS_FBINFO(video.len_maximum));
+failCtrlMR:;
+	release_mem_region(ctrlptr_phys, 16384);
+fail:;
+	return err;
+}
+
+LIST_HEAD(matroxfb_list);
+LIST_HEAD(matroxfb_driver_list);
+
+#define matroxfb_l(x) list_entry(x, struct matrox_fb_info, next_fb)
+#define matroxfb_driver_l(x) list_entry(x, struct matroxfb_driver, node)
+int matroxfb_register_driver(struct matroxfb_driver* drv) {
+	struct matrox_fb_info* minfo;
+
+	list_add(&drv->node, &matroxfb_driver_list);
+	for (minfo = matroxfb_l(matroxfb_list.next);
+	     minfo != matroxfb_l(&matroxfb_list);
+	     minfo = matroxfb_l(minfo->next_fb.next)) {
+		void* p;
+
+		if (minfo->drivers_count == MATROXFB_MAX_FB_DRIVERS)
+			continue;
+		p = drv->probe(minfo);
+		if (p) {
+			minfo->drivers_data[minfo->drivers_count] = p;
+			minfo->drivers[minfo->drivers_count++] = drv;
+		}
+	}
+	return 0;
+}
+
+void matroxfb_unregister_driver(struct matroxfb_driver* drv) {
+	struct matrox_fb_info* minfo;
+
+	list_del(&drv->node);
+	for (minfo = matroxfb_l(matroxfb_list.next);
+	     minfo != matroxfb_l(&matroxfb_list);
+	     minfo = matroxfb_l(minfo->next_fb.next)) {
+		int i;
+
+		for (i = 0; i < minfo->drivers_count; ) {
+			if (minfo->drivers[i] == drv) {
+				if (drv && drv->remove)
+					drv->remove(minfo, minfo->drivers_data[i]);
+				minfo->drivers[i] = minfo->drivers[--minfo->drivers_count];
+				minfo->drivers_data[i] = minfo->drivers_data[minfo->drivers_count];
+			} else
+				i++;
+		}
+	}
+}
+
+static void matroxfb_register_device(struct matrox_fb_info* minfo) {
+	struct matroxfb_driver* drv;
+	int i = 0;
+	list_add(&ACCESS_FBINFO(next_fb), &matroxfb_list);
+	for (drv = matroxfb_driver_l(matroxfb_driver_list.next);
+	     drv != matroxfb_driver_l(&matroxfb_driver_list);
+	     drv = matroxfb_driver_l(drv->node.next)) {
+		if (drv && drv->probe) {
+			void *p = drv->probe(minfo);
+			if (p) {
+				minfo->drivers_data[i] = p;
+				minfo->drivers[i++] = drv;
+				if (i == MATROXFB_MAX_FB_DRIVERS)
+					break;
+			}
+		}
+	}
+	minfo->drivers_count = i;
+}
+
+static void matroxfb_unregister_device(struct matrox_fb_info* minfo) {
+	int i;
+
+	list_del(&ACCESS_FBINFO(next_fb));
+	for (i = 0; i < minfo->drivers_count; i++) {
+		struct matroxfb_driver* drv = minfo->drivers[i];
+
+		if (drv && drv->remove)
+			drv->remove(minfo, minfo->drivers_data[i]);
+	}
+}
+
+static int matroxfb_probe(struct pci_dev* pdev, const struct pci_device_id* dummy) {
+	struct board* b;
+	u_int8_t rev;
+	u_int16_t svid;
+	u_int16_t sid;
+	struct matrox_fb_info* minfo;
+	struct display* d;
+	int err;
+#ifndef CONFIG_FB_MATROX_MULTIHEAD
+	static int registered = 0;
+#endif
+	DBG("matroxfb_probe")
+
+	pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
+	svid = pdev->subsystem_vendor;
+	sid = pdev->subsystem_device;
+	for (b = dev_list; b->vendor; b++) {
+		if ((b->vendor != pdev->vendor) || (b->device != pdev->device) || (b->rev < rev)) continue;
+		if (b->svid)
+			if ((b->svid != svid) || (b->sid != sid)) continue;
+		break;
+	}
+	/* not match... */
+	if (!b->vendor)
+		return -1;
+	if (dev > 0) {
+		/* not requested one... */
+		dev--;
+		return -1;
+	}
+	if (pci_enable_device(pdev)) {
+		return -1;
+	}
+
+#ifdef CONFIG_FB_MATROX_MULTIHEAD
+	minfo = (struct matrox_fb_info*)kmalloc(sizeof(*minfo), GFP_KERNEL);
+	if (!minfo)
+		return -1;
+	d = (struct display*)kmalloc(sizeof(*d), GFP_KERNEL);
+	if (!d) {
+		kfree(minfo);
+		return -1;
+	}
+#else
+	if (registered)	/* singlehead driver... */
+		return -1;
+	minfo = &matroxfb_global_mxinfo;
+	d = &global_disp;
+#endif
+	memset(MINFO, 0, sizeof(*MINFO));
+	memset(d, 0, sizeof(*d));
+
+	ACCESS_FBINFO(currenthw) = &ACCESS_FBINFO(hw1);
+	ACCESS_FBINFO(newhw) = &ACCESS_FBINFO(hw2);
+	ACCESS_FBINFO(pcidev) = pdev;
+	ACCESS_FBINFO(dead) = 0;
+	ACCESS_FBINFO(usecount) = 0;
+	pdev->driver_data = MINFO;
+	/* CMDLINE */
+	memcpy(ACCESS_FBINFO(fbcon.fontname), fontname, sizeof(ACCESS_FBINFO(fbcon.fontname)));
+	/* DEVFLAGS */
+	ACCESS_FBINFO(devflags.inverse) = inverse;
+	ACCESS_FBINFO(devflags.novga) = novga;
+	ACCESS_FBINFO(devflags.nobios) = nobios;
+	ACCESS_FBINFO(devflags.noinit) = noinit;
+	ACCESS_FBINFO(devflags.nopciretry) = no_pci_retry;
+	ACCESS_FBINFO(devflags.mga_24bpp_fix) = inv24;
+	ACCESS_FBINFO(devflags.precise_width) = option_precise_width;
+	ACCESS_FBINFO(devflags.hwcursor) = hwcursor;
+	ACCESS_FBINFO(devflags.blink) = blink;
+	ACCESS_FBINFO(devflags.sgram) = sgram;
+	ACCESS_FBINFO(capable.cross4MB) = cross4MB;
+
+	ACCESS_FBINFO(fastfont.size) = fastfont;
+
+	ACCESS_FBINFO(cursor.state) = CM_ERASE;
+	ACCESS_FBINFO(cursor.timer.prev) = ACCESS_FBINFO(cursor.timer.next) = NULL;
+	ACCESS_FBINFO(cursor.timer.data) = (unsigned long)MINFO;
+	spin_lock_init(&ACCESS_FBINFO(lock.DAC));
+	spin_lock_init(&ACCESS_FBINFO(lock.accel));
+	init_rwsem(&ACCESS_FBINFO(crtc2.lock));
+	init_rwsem(&ACCESS_FBINFO(altout.lock));
+
+	ACCESS_FBINFO(output.all) = MATROXFB_OUTPUT_CONN_PRIMARY;
+	ACCESS_FBINFO(output.ph) = MATROXFB_OUTPUT_CONN_PRIMARY;
+	ACCESS_FBINFO(output.sh) = 0;
+
+	/* subsequent heads always needs initialization and must not enable BIOS */
+	noinit = 0;
+	nobios = 1;
+	novga = 1;
+
+	err = initMatrox2(PMINFO d, b);
+	if (!err) {
+		matroxfb_register_device(MINFO);
+		return 0;
+	}
+#ifdef CONFIG_FB_MATROX_MULTIHEAD
+	kfree(d);
+	kfree(minfo);
+#endif
+	return -1;
+}
+
+static void pci_remove_matrox(struct pci_dev* pdev) {
+	struct matrox_fb_info* minfo;
+
+	minfo = pdev->driver_data;
+	matroxfb_remove(PMINFO 1);
+}
+
+static struct pci_driver matroxfb_driver = {
+	name:	"matroxfb",
+	probe:	matroxfb_probe,
+	remove:	pci_remove_matrox,
+};
+
+/* **************************** init-time only **************************** */
+
+#define RSResolution(X)	((X) & 0x0F)
+#define RS640x400	1
+#define RS640x480	2
+#define RS800x600	3
+#define RS1024x768	4
+#define RS1280x1024	5
+#define RS1600x1200	6
+#define RS768x576	7
+#define RS960x720	8
+#define RS1152x864	9
+#define RS1408x1056	10
+#define RS640x350	11
+#define RS1056x344	12	/* 132 x 43 text */
+#define RS1056x400	13	/* 132 x 50 text */
+#define RS1056x480	14	/* 132 x 60 text */
+#define RSNoxNo		15
+/* 10-FF */
+static struct { int xres, yres, left, right, upper, lower, hslen, vslen, vfreq; } timmings[] __initdata = {
+	{  640,  400,  48, 16, 39,  8,  96, 2, 70 },
+	{  640,  480,  48, 16, 33, 10,  96, 2, 60 },
+	{  800,  600, 144, 24, 28,  8, 112, 6, 60 },
+	{ 1024,  768, 160, 32, 30,  4, 128, 4, 60 },
+	{ 1280, 1024, 224, 32, 32,  4, 136, 4, 60 },
+	{ 1600, 1200, 272, 48, 32,  5, 152, 5, 60 },
+	{  768,  576, 144, 16, 28,  6, 112, 4, 60 },
+	{  960,  720, 144, 24, 28,  8, 112, 4, 60 },
+	{ 1152,  864, 192, 32, 30,  4, 128, 4, 60 },
+	{ 1408, 1056, 256, 40, 32,  5, 144, 5, 60 },
+	{  640,  350,  48, 16, 39,  8,  96, 2, 70 },
+	{ 1056,  344,  96, 24, 59, 44, 160, 2, 70 },
+	{ 1056,  400,  96, 24, 39,  8, 160, 2, 70 },
+	{ 1056,  480,  96, 24, 36, 12, 160, 3, 60 },
+	{    0,    0,  ~0, ~0, ~0, ~0,   0, 0,  0 }
+};
+
+#define RSCreate(X,Y)	((X) | ((Y) << 8))
+static struct { unsigned int vesa; unsigned int info; } *RSptr, vesamap[] __initdata = {
+/* default must be first */
+#ifdef FBCON_HAS_CFB8
+	{    ~0, RSCreate(RSNoxNo,     RS8bpp ) },
+	{ 0x101, RSCreate(RS640x480,   RS8bpp ) },
+	{ 0x100, RSCreate(RS640x400,   RS8bpp ) },
+	{ 0x180, RSCreate(RS768x576,   RS8bpp ) },
+	{ 0x103, RSCreate(RS800x600,   RS8bpp ) },
+	{ 0x188, RSCreate(RS960x720,   RS8bpp ) },
+	{ 0x105, RSCreate(RS1024x768,  RS8bpp ) },
+	{ 0x190, RSCreate(RS1152x864,  RS8bpp ) },
+	{ 0x107, RSCreate(RS1280x1024, RS8bpp ) },
+	{ 0x198, RSCreate(RS1408x1056, RS8bpp ) },
+	{ 0x11C, RSCreate(RS1600x1200, RS8bpp ) },
+#endif
+#ifdef FBCON_HAS_CFB16
+	{    ~0, RSCreate(RSNoxNo,     RS15bpp) },
+	{ 0x110, RSCreate(RS640x480,   RS15bpp) },
+	{ 0x181, RSCreate(RS768x576,   RS15bpp) },
+	{ 0x113, RSCreate(RS800x600,   RS15bpp) },
+	{ 0x189, RSCreate(RS960x720,   RS15bpp) },
+	{ 0x116, RSCreate(RS1024x768,  RS15bpp) },
+	{ 0x191, RSCreate(RS1152x864,  RS15bpp) },
+	{ 0x119, RSCreate(RS1280x1024, RS15bpp) },
+	{ 0x199, RSCreate(RS1408x1056, RS15bpp) },
+	{ 0x11D, RSCreate(RS1600x1200, RS15bpp) },
+	{ 0x111, RSCreate(RS640x480,   RS16bpp) },
+	{ 0x182, RSCreate(RS768x576,   RS16bpp) },
+	{ 0x114, RSCreate(RS800x600,   RS16bpp) },
+	{ 0x18A, RSCreate(RS960x720,   RS16bpp) },
+	{ 0x117, RSCreate(RS1024x768,  RS16bpp) },
+	{ 0x192, RSCreate(RS1152x864,  RS16bpp) },
+	{ 0x11A, RSCreate(RS1280x1024, RS16bpp) },
+	{ 0x19A, RSCreate(RS1408x1056, RS16bpp) },
+	{ 0x11E, RSCreate(RS1600x1200, RS16bpp) },
+#endif
+#ifdef FBCON_HAS_CFB24
+	{    ~0, RSCreate(RSNoxNo,     RS24bpp) },
+	{ 0x1B2, RSCreate(RS640x480,   RS24bpp) },
+	{ 0x184, RSCreate(RS768x576,   RS24bpp) },
+	{ 0x1B5, RSCreate(RS800x600,   RS24bpp) },
+	{ 0x18C, RSCreate(RS960x720,   RS24bpp) },
+	{ 0x1B8, RSCreate(RS1024x768,  RS24bpp) },
+	{ 0x194, RSCreate(RS1152x864,  RS24bpp) },
+	{ 0x1BB, RSCreate(RS1280x1024, RS24bpp) },
+	{ 0x19C, RSCreate(RS1408x1056, RS24bpp) },
+	{ 0x1BF, RSCreate(RS1600x1200, RS24bpp) },
+#endif
+#ifdef FBCON_HAS_CFB32
+	{    ~0, RSCreate(RSNoxNo,     RS32bpp) },
+	{ 0x112, RSCreate(RS640x480,   RS32bpp) },
+	{ 0x183, RSCreate(RS768x576,   RS32bpp) },
+	{ 0x115, RSCreate(RS800x600,   RS32bpp) },
+	{ 0x18B, RSCreate(RS960x720,   RS32bpp) },
+	{ 0x118, RSCreate(RS1024x768,  RS32bpp) },
+	{ 0x193, RSCreate(RS1152x864,  RS32bpp) },
+	{ 0x11B, RSCreate(RS1280x1024, RS32bpp) },
+	{ 0x19B, RSCreate(RS1408x1056, RS32bpp) },
+	{ 0x11F, RSCreate(RS1600x1200, RS32bpp) },
+#endif
+#ifdef FBCON_HAS_VGATEXT
+	{    ~0, RSCreate(RSNoxNo,     RSText ) },
+	{ 0x002, RSCreate(RS640x400,   RSText ) },	/* 80x25 */
+	{ 0x003, RSCreate(RS640x400,   RSText ) },	/* 80x25 */
+	{ 0x007, RSCreate(RS640x400,   RSText ) },	/* 80x25 */
+	{ 0x1C0, RSCreate(RS640x400,   RSText8) },	/* 80x50 */
+	{ 0x108, RSCreate(RS640x480,   RSText8) },	/* 80x60 */
+	{ 0x109, RSCreate(RS1056x400,  RSText ) },	/* 132x25 */
+	{ 0x10A, RSCreate(RS1056x344,  RSText8) },	/* 132x43 */
+	{ 0x10B, RSCreate(RS1056x400,  RSText8) },	/* 132x50 */
+	{ 0x10C, RSCreate(RS1056x480,  RSText8) },	/* 132x60 */
+#endif
+#ifdef FBCON_HAS_CFB4
+	{    ~0, RSCreate(RSNoxNo,     RS4bpp ) },
+	{ 0x010, RSCreate(RS640x350,   RS4bpp ) },
+	{ 0x012, RSCreate(RS640x480,   RS4bpp ) },
+	{ 0x102, RSCreate(RS800x600,   RS4bpp ) },
+	{ 0x104, RSCreate(RS1024x768,  RS4bpp ) },
+	{ 0x106, RSCreate(RS1280x1024, RS4bpp ) },
+#endif
+	{     0, 0				}};
+
+static void __init matroxfb_init_params(void) {
+	/* fh from kHz to Hz */
+	if (fh < 1000)
+		fh *= 1000;	/* 1kHz minimum */
+	/* maxclk */
+	if (maxclk < 1000) maxclk *= 1000;	/* kHz -> Hz, MHz -> kHz */
+	if (maxclk < 1000000) maxclk *= 1000;	/* kHz -> Hz, 1MHz minimum */
+	/* fix VESA number */
+	if (vesa != ~0)
+		vesa &= 0x1DFF;		/* mask out clearscreen, acceleration and so on */
+
+	/* static settings */
+	for (RSptr = vesamap; RSptr->vesa; RSptr++) {
+		if (RSptr->vesa == vesa) break;
+	}
+	if (!RSptr->vesa) {
+		printk(KERN_ERR "Invalid vesa mode 0x%04X\n", vesa);
+		RSptr = vesamap;
+	}
+	{
+		int res = RSResolution(RSptr->info)-1;
+		if (left == ~0)
+			left = timmings[res].left;
+		if (!xres)
+			xres = timmings[res].xres;
+		if (right == ~0)
+			right = timmings[res].right;
+		if (!hslen)
+			hslen = timmings[res].hslen;
+		if (upper == ~0)
+			upper = timmings[res].upper;
+		if (!yres)
+			yres = timmings[res].yres;
+		if (lower == ~0)
+			lower = timmings[res].lower;
+		if (!vslen)
+			vslen = timmings[res].vslen;
+		if (!(fv||fh||maxclk||pixclock))
+			fv = timmings[res].vfreq;
+		if (depth == -1)
+			depth = RSDepth(RSptr->info);
+	}
+}
+
+static void __init matrox_init(void) {
+	matroxfb_init_params();
+	pci_register_driver(&matroxfb_driver);
+	dev = -1;	/* accept all new devices... */
+}
+
+/* **************************** exit-time only **************************** */
+
+static void __exit matrox_done(void) {
+	pci_unregister_driver(&matroxfb_driver);
+}
+
+#ifndef MODULE
+
+/* ************************* init in-kernel code ************************** */
+
+int __init matroxfb_setup(char *options) {
+	char *this_opt;
+
+	DBG("matroxfb_setup")
+
+	fontname[0] = '\0';
+
+	if (!options || !*options)
+		return 0;
+
+	for(this_opt=strtok(options,","); this_opt; this_opt=strtok(NULL,",")) {
+		if (!*this_opt) continue;
+
+		dprintk("matroxfb_setup: option %s\n", this_opt);
+
+		if (!strncmp(this_opt, "dev:", 4))
+			dev = simple_strtoul(this_opt+4, NULL, 0);
+		else if (!strncmp(this_opt, "depth:", 6)) {
+			switch (simple_strtoul(this_opt+6, NULL, 0)) {
+				case 0: depth = RSText; break;
+				case 4: depth = RS4bpp; break;
+				case 8: depth = RS8bpp; break;
+				case 15:depth = RS15bpp; break;
+				case 16:depth = RS16bpp; break;
+				case 24:depth = RS24bpp; break;
+				case 32:depth = RS32bpp; break;
+				default:
+					printk(KERN_ERR "matroxfb: unsupported color depth\n");
+			}
+		} else if (!strncmp(this_opt, "xres:", 5))
+			xres = simple_strtoul(this_opt+5, NULL, 0);
+		else if (!strncmp(this_opt, "yres:", 5))
+			yres = simple_strtoul(this_opt+5, NULL, 0);
+		else if (!strncmp(this_opt, "vslen:", 6))
+			vslen = simple_strtoul(this_opt+6, NULL, 0);
+		else if (!strncmp(this_opt, "hslen:", 6))
+			hslen = simple_strtoul(this_opt+6, NULL, 0);
+		else if (!strncmp(this_opt, "left:", 5))
+			left = simple_strtoul(this_opt+5, NULL, 0);
+		else if (!strncmp(this_opt, "right:", 6))
+			right = simple_strtoul(this_opt+6, NULL, 0);
+		else if (!strncmp(this_opt, "upper:", 6))
+			upper = simple_strtoul(this_opt+6, NULL, 0);
+		else if (!strncmp(this_opt, "lower:", 6))
+			lower = simple_strtoul(this_opt+6, NULL, 0);
+		else if (!strncmp(this_opt, "pixclock:", 9))
+			pixclock = simple_strtoul(this_opt+9, NULL, 0);
+		else if (!strncmp(this_opt, "sync:", 5))
+			sync = simple_strtoul(this_opt+5, NULL, 0);
+		else if (!strncmp(this_opt, "vesa:", 5))
+			vesa = simple_strtoul(this_opt+5, NULL, 0);
+		else if (!strncmp(this_opt, "font:", 5))
+			strncpy(fontname, this_opt+5, sizeof(fontname)-1);
+		else if (!strncmp(this_opt, "maxclk:", 7))
+			maxclk = simple_strtoul(this_opt+7, NULL, 0);
+		else if (!strncmp(this_opt, "fh:", 3))
+			fh = simple_strtoul(this_opt+3, NULL, 0);
+		else if (!strncmp(this_opt, "fv:", 3))
+			fv = simple_strtoul(this_opt+3, NULL, 0);
+		else if (!strncmp(this_opt, "mem:", 4))
+			mem = simple_strtoul(this_opt+4, NULL, 0);
+		else if (!strncmp(this_opt, "mode:", 5))
+			strncpy(videomode, this_opt+5, sizeof(videomode)-1);
+#ifdef CONFIG_FB_OF
+		else if (!strncmp(this_opt, "vmode:", 6)) {
+			unsigned int vmode = simple_strtoul(this_opt+6, NULL, 0);
+			if (vmode > 0 && vmode <= VMODE_MAX)
+				default_vmode = vmode;
+		} else if (!strncmp(this_opt, "cmode:", 6)) {
+			unsigned int cmode = simple_strtoul(this_opt+6, NULL, 0);
+			switch (cmode) {
+				case 0:
+				case 8:
+					default_cmode = CMODE_8;
+					break;
+				case 15:
+				case 16:
+					default_cmode = CMODE_16;
+					break;
+				case 24:
+				case 32:
+					default_cmode = CMODE_32;
+					break;
+			}
+		}
+#endif
+		else if (!strncmp(this_opt, "fastfont:", 9))
+			fastfont = simple_strtoul(this_opt+9, NULL, 0);
+		else if (!strcmp(this_opt, "nofastfont"))	/* fastfont:N and nofastfont (nofastfont = fastfont:0) */
+			fastfont = 0;
+		else if (!strcmp(this_opt, "disabled"))	/* nodisabled does not exist */
+			disabled = 1;
+		else if (!strcmp(this_opt, "enabled"))	/* noenabled does not exist */
+			disabled = 0;
+		else if (!strcmp(this_opt, "sgram"))	/* nosgram == sdram */
+			sgram = 1;
+		else if (!strcmp(this_opt, "sdram"))
+			sgram = 0;
+		else {
+			int value = 1;
+
+			if (!strncmp(this_opt, "no", 2)) {
+				value = 0;
+				this_opt += 2;
+			}
+			if (! strcmp(this_opt, "inverse"))
+				inverse = value;
+			else if (!strcmp(this_opt, "accel"))
+				noaccel = !value;
+			else if (!strcmp(this_opt, "pan"))
+				nopan = !value;
+			else if (!strcmp(this_opt, "pciretry"))
+				no_pci_retry = !value;
+			else if (!strcmp(this_opt, "vga"))
+				novga = !value;
+			else if (!strcmp(this_opt, "bios"))
+				nobios = !value;
+			else if (!strcmp(this_opt, "init"))
+				noinit = !value;
+#ifdef CONFIG_MTRR
+			else if (!strcmp(this_opt, "mtrr"))
+				mtrr = value;
+#endif
+			else if (!strcmp(this_opt, "inv24"))
+				inv24 = value;
+			else if (!strcmp(this_opt, "cross4MB"))
+				cross4MB = value;
+			else if (!strcmp(this_opt, "hwcursor"))
+				hwcursor = value;
+			else if (!strcmp(this_opt, "blink"))
+				blink = value;
+			else if (!strcmp(this_opt, "grayscale"))
+				grayscale = value;
+			else {
+				strncpy(videomode, this_opt, sizeof(videomode)-1);
+			}
+		}
+	}
+	return 0;
+}
+
+static int __init initialized = 0;
+
+int __init matroxfb_init(void)
+{
+	DBG("matroxfb_init")
+
+	if (disabled)
+		return -ENXIO;
+	if (!initialized) {
+		initialized = 1;
+		matrox_init();
+	}
+	/* never return failure, user can hotplug matrox later... */
+	return 0;
+}
+
+#if defined(CONFIG_FB_OF)
+int __init matrox_of_init(struct device_node *dp){
+	DBG("matrox_of_init");
+
+	if (disabled)
+		return -ENXIO;
+	if (!initialized) {
+		initialized = 1;
+		matrox_init();
+	}
+	/* failure? */
+	return 0;
+}
+#endif	/* CONFIG_FB_OF */
+
+#else
+
+/* *************************** init module code **************************** */
+
+MODULE_AUTHOR("(c) 1998,1999 Petr Vandrovec <vandrove@vc.cvut.cz>");
+MODULE_DESCRIPTION("Accelerated FBDev driver for Matrox Millennium/Mystique/G100/G200/G400");
+MODULE_PARM(mem, "i");
+MODULE_PARM_DESC(mem, "Size of available memory in MB, KB or B (2,4,8,12,16MB, default=autodetect)");
+MODULE_PARM(disabled, "i");
+MODULE_PARM_DESC(disabled, "Disabled (0 or 1=disabled) (default=0)");
+MODULE_PARM(noaccel, "i");
+MODULE_PARM_DESC(noaccel, "Do not use accelerating engine (0 or 1=disabled) (default=0)");
+MODULE_PARM(nopan, "i");
+MODULE_PARM_DESC(nopan, "Disable pan on startup (0 or 1=disabled) (default=0)");
+MODULE_PARM(no_pci_retry, "i");
+MODULE_PARM_DESC(no_pci_retry, "PCI retries enabled (0 or 1=disabled) (default=0)");
+MODULE_PARM(novga, "i");
+MODULE_PARM_DESC(novga, "VGA I/O (0x3C0-0x3DF) disabled (0 or 1=disabled) (default=0)");
+MODULE_PARM(nobios, "i");
+MODULE_PARM_DESC(nobios, "Disables ROM BIOS (0 or 1=disabled) (default=do not change BIOS state)");
+MODULE_PARM(noinit, "i");
+MODULE_PARM_DESC(noinit, "Disables W/SG/SD-RAM and bus interface initialization (0 or 1=do not initialize) (default=0)");
+MODULE_PARM(mtrr, "i");
+MODULE_PARM_DESC(mtrr, "This speeds up video memory accesses (0=disabled or 1) (default=1)");
+MODULE_PARM(sgram, "i");
+MODULE_PARM_DESC(sgram, "Indicates that G200/G400 has SGRAM memory (0=SDRAM, 1=SGRAM) (default=0)");
+MODULE_PARM(inv24, "i");
+MODULE_PARM_DESC(inv24, "Inverts clock polarity for 24bpp and loop frequency > 100MHz (default=do not invert polarity)");
+MODULE_PARM(inverse, "i");
+MODULE_PARM_DESC(inverse, "Inverse (0 or 1) (default=0)");
+#ifdef CONFIG_FB_MATROX_MULTIHEAD
+MODULE_PARM(dev, "i");
+MODULE_PARM_DESC(dev, "Multihead support, attach to device ID (0..N) (default=all working)");
+#else
+MODULE_PARM(dev, "i");
+MODULE_PARM_DESC(dev, "Multihead support, attach to device ID (0..N) (default=first working)");
+#endif
+MODULE_PARM(vesa, "i");
+MODULE_PARM_DESC(vesa, "Startup videomode (0x000-0x1FF) (default=0x101)");
+MODULE_PARM(xres, "i");
+MODULE_PARM_DESC(xres, "Horizontal resolution (px), overrides xres from vesa (default=vesa)");
+MODULE_PARM(yres, "i");
+MODULE_PARM_DESC(yres, "Vertical resolution (scans), overrides yres from vesa (default=vesa)");
+MODULE_PARM(upper, "i");
+MODULE_PARM_DESC(upper, "Upper blank space (scans), overrides upper from vesa (default=vesa)");
+MODULE_PARM(lower, "i");
+MODULE_PARM_DESC(lower, "Lower blank space (scans), overrides lower from vesa (default=vesa)");
+MODULE_PARM(vslen, "i");
+MODULE_PARM_DESC(vslen, "Vertical sync length (scans), overrides lower from vesa (default=vesa)");
+MODULE_PARM(left, "i");
+MODULE_PARM_DESC(left, "Left blank space (px), overrides left from vesa (default=vesa)");
+MODULE_PARM(right, "i");
+MODULE_PARM_DESC(right, "Right blank space (px), overrides right from vesa (default=vesa)");
+MODULE_PARM(hslen, "i");
+MODULE_PARM_DESC(hslen, "Horizontal sync length (px), overrides hslen from vesa (default=vesa)");
+MODULE_PARM(pixclock, "i");
+MODULE_PARM_DESC(pixclock, "Pixelclock (ns), overrides pixclock from vesa (default=vesa)");
+MODULE_PARM(sync, "i");
+MODULE_PARM_DESC(sync, "Sync polarity, overrides sync from vesa (default=vesa)");
+MODULE_PARM(depth, "i");
+MODULE_PARM_DESC(depth, "Color depth (0=text,8,15,16,24,32) (default=vesa)");
+MODULE_PARM(maxclk, "i");
+MODULE_PARM_DESC(maxclk, "Startup maximal clock, 0-999MHz, 1000-999999kHz, 1000000-INF Hz");
+MODULE_PARM(fh, "i");
+MODULE_PARM_DESC(fh, "Startup horizontal frequency, 0-999kHz, 1000-INF Hz");
+MODULE_PARM(fv, "i");
+MODULE_PARM_DESC(fv, "Startup vertical frequency, 0-INF Hz\n"
+"You should specify \"fv:max_monitor_vsync,fh:max_monitor_hsync,maxclk:max_monitor_dotclock\"\n");
+MODULE_PARM(hwcursor, "i");
+MODULE_PARM_DESC(hwcursor, "Enables hardware cursor (0 or 1) (default=0)");
+MODULE_PARM(blink, "i");
+MODULE_PARM_DESC(blink, "Enables hardware cursor blinking (0 or 1) (default=1)");
+MODULE_PARM(fastfont, "i");
+MODULE_PARM_DESC(fastfont, "Specifies, how much memory should be used for font data (0, 1024-65536 are reasonable) (default=0)");
+MODULE_PARM(grayscale, "i");
+MODULE_PARM_DESC(grayscale, "Sets display into grayscale. Works perfectly with paletized videomode (4, 8bpp), some limitations apply to 16, 24 and 32bpp videomodes (default=nograyscale)");
+MODULE_PARM(cross4MB, "i");
+MODULE_PARM_DESC(cross4MB, "Specifies that 4MB boundary can be in middle of line. (default=autodetected)");
+#ifdef CONFIG_FB_OF
+MODULE_PARM(vmode, "i");
+MODULE_PARM_DESC(vmode, "Specify the vmode mode number that should be used (640x480 default)");
+MODULE_PARM(cmode, "i");
+MODULE_PARM_DESC(cmode, "Specify the video depth that should be used (8bit default)");
+#endif
+
+int __init init_module(void){
+
+	DBG("init_module")
+
+	if (disabled)
+		return -ENXIO;
+
+	if (depth == 0)
+		depth = RSText;
+	else if (depth == 4)
+		depth = RS4bpp;
+	else if (depth == 8)
+		depth = RS8bpp;
+	else if (depth == 15)
+		depth = RS15bpp;
+	else if (depth == 16)
+		depth = RS16bpp;
+	else if (depth == 24)
+		depth = RS24bpp;
+	else if (depth == 32)
+		depth = RS32bpp;
+	else if (depth != -1) {
+		printk(KERN_ERR "matroxfb: depth %d is not supported, using default\n", depth);
+		depth = -1;
+	}
+	matrox_init();
+	/* never return failure; user can hotplug matrox later... */
+	return 0;
+}
+#endif	/* MODULE */
+
+module_exit(matrox_done);
+EXPORT_SYMBOL(matroxfb_register_driver);
+EXPORT_SYMBOL(matroxfb_unregister_driver);
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */

FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)