1 /*
2  *
3  * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200 and G400
4  *
5  * (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
6  *
7  * Portions Copyright (c) 2001 Matrox Graphics Inc.
8  *
9  * Version: 1.65 2002/08/14
10  *
11  * MTRR stuff: 1998 Tom Rini <trini@kernel.crashing.org>
12  *
13  * Contributors: "menion?" <menion@mindless.com>
14  *                     Betatesting, fixes, ideas
15  *
16  *               "Kurt Garloff" <garloff@suse.de>
17  *                     Betatesting, fixes, ideas, videomodes, videomodes timmings
18  *
19  *               "Tom Rini" <trini@kernel.crashing.org>
20  *                     MTRR stuff, PPC cleanups, betatesting, fixes, ideas
21  *
22  *               "Bibek Sahu" <scorpio@dodds.net>
23  *                     Access device through readb|w|l and write b|w|l
24  *                     Extensive debugging stuff
25  *
26  *               "Daniel Haun" <haund@usa.net>
27  *                     Testing, hardware cursor fixes
28  *
29  *               "Scott Wood" <sawst46+@pitt.edu>
30  *                     Fixes
31  *
32  *               "Gerd Knorr" <kraxel@goldbach.isdn.cs.tu-berlin.de>
33  *                     Betatesting
34  *
35  *               "Kelly French" <targon@hazmat.com>
36  *               "Fernando Herrera" <fherrera@eurielec.etsit.upm.es>
37  *                     Betatesting, bug reporting
38  *
39  *               "Pablo Bianucci" <pbian@pccp.com.ar>
40  *                     Fixes, ideas, betatesting
41  *
42  *               "Inaky Perez Gonzalez" <inaky@peloncho.fis.ucm.es>
43  *                     Fixes, enhandcements, ideas, betatesting
44  *
45  *               "Ryuichi Oikawa" <roikawa@rr.iiij4u.or.jp>
46  *                     PPC betatesting, PPC support, backward compatibility
47  *
48  *               "Paul Womar" <Paul@pwomar.demon.co.uk>
49  *               "Owen Waller" <O.Waller@ee.qub.ac.uk>
50  *                     PPC betatesting
51  *
52  *               "Thomas Pornin" <pornin@bolet.ens.fr>
53  *                     Alpha betatesting
54  *
55  *               "Pieter van Leuven" <pvl@iae.nl>
56  *               "Ulf Jaenicke-Roessler" <ujr@physik.phy.tu-dresden.de>
57  *                     G100 testing
58  *
59  *               "H. Peter Arvin" <hpa@transmeta.com>
60  *                     Ideas
61  *
62  *               "Cort Dougan" <cort@cs.nmt.edu>
63  *                     CHRP fixes and PReP cleanup
64  *
65  *               "Mark Vojkovich" <mvojkovi@ucsd.edu>
66  *                     G400 support
67  *
68  *               "Samuel Hocevar" <sam@via.ecp.fr>
69  *                     Fixes
70  *
71  *               "Anton Altaparmakov" <AntonA@bigfoot.com>
72  *                     G400 MAX/non-MAX distinction
73  *
74  *               "Ken Aaker" <kdaaker@rchland.vnet.ibm.com>
75  *                     memtype extension (needed for GXT130P RS/6000 adapter)
76  *
77  *               "Uns Lider" <unslider@miranda.org>
78  *                     G100 PLNWT fixes
79  *
80  *               "Denis Zaitsev" <zzz@cd-club.ru>
81  *                     Fixes
82  *
83  *               "Mike Pieper" <mike@pieper-family.de>
84  *                     TVOut enhandcements, V4L2 control interface.
85  *
86  *               "Diego Biurrun" <diego@biurrun.de>
87  *                     DFP testing
88  *
89  * (following author is not in any relation with this code, but his code
90  *  is included in this driver)
91  *
92  * Based on framebuffer driver for VBE 2.0 compliant graphic boards
93  *     (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
94  *
95  * (following author is not in any relation with this code, but his ideas
96  *  were used when writing this driver)
97  *
98  *		 FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
99  *
100  */
101 
102 #include <linux/version.h>
103 
104 #include "matroxfb_base.h"
105 #include "matroxfb_misc.h"
106 #include "matroxfb_accel.h"
107 #include "matroxfb_DAC1064.h"
108 #include "matroxfb_Ti3026.h"
109 #include "matroxfb_maven.h"
110 #include "matroxfb_crtc2.h"
111 #include "matroxfb_g450.h"
112 #include <linux/matroxfb.h>
113 #include <linux/interrupt.h>
114 #include <linux/slab.h>
115 #include <linux/uaccess.h>
116 
117 #ifdef CONFIG_PPC_PMAC
118 #include <asm/machdep.h>
119 unsigned char nvram_read_byte(int);
120 static int default_vmode = VMODE_NVRAM;
121 static int default_cmode = CMODE_NVRAM;
122 #endif
123 
124 static void matroxfb_unregister_device(struct matrox_fb_info* minfo);
125 
126 /* --------------------------------------------------------------------- */
127 
128 /*
129  * card parameters
130  */
131 
132 /* --------------------------------------------------------------------- */
133 
134 static struct fb_var_screeninfo vesafb_defined = {
135 	640,480,640,480,/* W,H, W, H (virtual) load xres,xres_virtual*/
136 	0,0,		/* virtual -> visible no offset */
137 	8,		/* depth -> load bits_per_pixel */
138 	0,		/* greyscale ? */
139 	{0,0,0},	/* R */
140 	{0,0,0},	/* G */
141 	{0,0,0},	/* B */
142 	{0,0,0},	/* transparency */
143 	0,		/* standard pixel format */
144 	FB_ACTIVATE_NOW,
145 	-1,-1,
146 	FB_ACCELF_TEXT,	/* accel flags */
147 	39721L,48L,16L,33L,10L,
148 	96L,2L,~0,	/* No sync info */
149 	FB_VMODE_NONINTERLACED,
150 };
151 
152 
153 
154 /* --------------------------------------------------------------------- */
155 static void update_crtc2(struct matrox_fb_info *minfo, unsigned int pos)
156 {
157 	struct matroxfb_dh_fb_info *info = minfo->crtc2.info;
158 
159 	/* Make sure that displays are compatible */
160 	if (info && (info->fbcon.var.bits_per_pixel == minfo->fbcon.var.bits_per_pixel)
161 		 && (info->fbcon.var.xres_virtual == minfo->fbcon.var.xres_virtual)
162 		 && (info->fbcon.var.green.length == minfo->fbcon.var.green.length)
163 		 ) {
164 		switch (minfo->fbcon.var.bits_per_pixel) {
165 			case 16:
166 			case 32:
167 				pos = pos * 8;
168 				if (info->interlaced) {
169 					mga_outl(0x3C2C, pos);
170 					mga_outl(0x3C28, pos + minfo->fbcon.var.xres_virtual * minfo->fbcon.var.bits_per_pixel / 8);
171 				} else {
172 					mga_outl(0x3C28, pos);
173 				}
174 				break;
175 		}
176 	}
177 }
178 
179 static void matroxfb_crtc1_panpos(struct matrox_fb_info *minfo)
180 {
181 	if (minfo->crtc1.panpos >= 0) {
182 		unsigned long flags;
183 		int panpos;
184 
185 		matroxfb_DAC_lock_irqsave(flags);
186 		panpos = minfo->crtc1.panpos;
187 		if (panpos >= 0) {
188 			unsigned int extvga_reg;
189 
190 			minfo->crtc1.panpos = -1; /* No update pending anymore */
191 			extvga_reg = mga_inb(M_EXTVGA_INDEX);
192 			mga_setr(M_EXTVGA_INDEX, 0x00, panpos);
193 			if (extvga_reg != 0x00) {
194 				mga_outb(M_EXTVGA_INDEX, extvga_reg);
195 			}
196 		}
197 		matroxfb_DAC_unlock_irqrestore(flags);
198 	}
199 }
200 
201 static irqreturn_t matrox_irq(int irq, void *dev_id)
202 {
203 	u_int32_t status;
204 	int handled = 0;
205 	struct matrox_fb_info *minfo = dev_id;
206 
207 	status = mga_inl(M_STATUS);
208 
209 	if (status & 0x20) {
210 		mga_outl(M_ICLEAR, 0x20);
211 		minfo->crtc1.vsync.cnt++;
212 		matroxfb_crtc1_panpos(minfo);
213 		wake_up_interruptible(&minfo->crtc1.vsync.wait);
214 		handled = 1;
215 	}
216 	if (status & 0x200) {
217 		mga_outl(M_ICLEAR, 0x200);
218 		minfo->crtc2.vsync.cnt++;
219 		wake_up_interruptible(&minfo->crtc2.vsync.wait);
220 		handled = 1;
221 	}
222 	return IRQ_RETVAL(handled);
223 }
224 
225 int matroxfb_enable_irq(struct matrox_fb_info *minfo, int reenable)
226 {
227 	u_int32_t bm;
228 
229 	if (minfo->devflags.accelerator == FB_ACCEL_MATROX_MGAG400)
230 		bm = 0x220;
231 	else
232 		bm = 0x020;
233 
234 	if (!test_and_set_bit(0, &minfo->irq_flags)) {
235 		if (request_irq(minfo->pcidev->irq, matrox_irq,
236 				IRQF_SHARED, "matroxfb", minfo)) {
237 			clear_bit(0, &minfo->irq_flags);
238 			return -EINVAL;
239 		}
240 		/* Clear any pending field interrupts */
241 		mga_outl(M_ICLEAR, bm);
242 		mga_outl(M_IEN, mga_inl(M_IEN) | bm);
243 	} else if (reenable) {
244 		u_int32_t ien;
245 
246 		ien = mga_inl(M_IEN);
247 		if ((ien & bm) != bm) {
248 			printk(KERN_DEBUG "matroxfb: someone disabled IRQ [%08X]\n", ien);
249 			mga_outl(M_IEN, ien | bm);
250 		}
251 	}
252 	return 0;
253 }
254 
255 static void matroxfb_disable_irq(struct matrox_fb_info *minfo)
256 {
257 	if (test_and_clear_bit(0, &minfo->irq_flags)) {
258 		/* Flush pending pan-at-vbl request... */
259 		matroxfb_crtc1_panpos(minfo);
260 		if (minfo->devflags.accelerator == FB_ACCEL_MATROX_MGAG400)
261 			mga_outl(M_IEN, mga_inl(M_IEN) & ~0x220);
262 		else
263 			mga_outl(M_IEN, mga_inl(M_IEN) & ~0x20);
264 		free_irq(minfo->pcidev->irq, minfo);
265 	}
266 }
267 
268 int matroxfb_wait_for_sync(struct matrox_fb_info *minfo, u_int32_t crtc)
269 {
270 	struct matrox_vsync *vs;
271 	unsigned int cnt;
272 	int ret;
273 
274 	switch (crtc) {
275 		case 0:
276 			vs = &minfo->crtc1.vsync;
277 			break;
278 		case 1:
279 			if (minfo->devflags.accelerator != FB_ACCEL_MATROX_MGAG400) {
280 				return -ENODEV;
281 			}
282 			vs = &minfo->crtc2.vsync;
283 			break;
284 		default:
285 			return -ENODEV;
286 	}
287 	ret = matroxfb_enable_irq(minfo, 0);
288 	if (ret) {
289 		return ret;
290 	}
291 
292 	cnt = vs->cnt;
293 	ret = wait_event_interruptible_timeout(vs->wait, cnt != vs->cnt, HZ/10);
294 	if (ret < 0) {
295 		return ret;
296 	}
297 	if (ret == 0) {
298 		matroxfb_enable_irq(minfo, 1);
299 		return -ETIMEDOUT;
300 	}
301 	return 0;
302 }
303 
304 /* --------------------------------------------------------------------- */
305 
306 static void matrox_pan_var(struct matrox_fb_info *minfo,
307 			   struct fb_var_screeninfo *var)
308 {
309 	unsigned int pos;
310 	unsigned short p0, p1, p2;
311 	unsigned int p3;
312 	int vbl;
313 	unsigned long flags;
314 
315 	CRITFLAGS
316 
317 	DBG(__func__)
318 
319 	if (minfo->dead)
320 		return;
321 
322 	minfo->fbcon.var.xoffset = var->xoffset;
323 	minfo->fbcon.var.yoffset = var->yoffset;
324 	pos = (minfo->fbcon.var.yoffset * minfo->fbcon.var.xres_virtual + minfo->fbcon.var.xoffset) * minfo->curr.final_bppShift / 32;
325 	pos += minfo->curr.ydstorg.chunks;
326 	p0 = minfo->hw.CRTC[0x0D] = pos & 0xFF;
327 	p1 = minfo->hw.CRTC[0x0C] = (pos & 0xFF00) >> 8;
328 	p2 = minfo->hw.CRTCEXT[0] = (minfo->hw.CRTCEXT[0] & 0xB0) | ((pos >> 16) & 0x0F) | ((pos >> 14) & 0x40);
329 	p3 = minfo->hw.CRTCEXT[8] = pos >> 21;
330 
331 	/* FB_ACTIVATE_VBL and we can acquire interrupts? Honor FB_ACTIVATE_VBL then... */
332 	vbl = (var->activate & FB_ACTIVATE_VBL) && (matroxfb_enable_irq(minfo, 0) == 0);
333 
334 	CRITBEGIN
335 
336 	matroxfb_DAC_lock_irqsave(flags);
337 	mga_setr(M_CRTC_INDEX, 0x0D, p0);
338 	mga_setr(M_CRTC_INDEX, 0x0C, p1);
339 	if (minfo->devflags.support32MB)
340 		mga_setr(M_EXTVGA_INDEX, 0x08, p3);
341 	if (vbl) {
342 		minfo->crtc1.panpos = p2;
343 	} else {
344 		/* Abort any pending change */
345 		minfo->crtc1.panpos = -1;
346 		mga_setr(M_EXTVGA_INDEX, 0x00, p2);
347 	}
348 	matroxfb_DAC_unlock_irqrestore(flags);
349 
350 	update_crtc2(minfo, pos);
351 
352 	CRITEND
353 }
354 
355 static void matroxfb_remove(struct matrox_fb_info *minfo, int dummy)
356 {
357 	/* Currently we are holding big kernel lock on all dead & usecount updates.
358 	 * Destroy everything after all users release it. Especially do not unregister
359 	 * framebuffer and iounmap memory, neither fbmem nor fbcon-cfb* does not check
360 	 * for device unplugged when in use.
361 	 * In future we should point mmio.vbase & video.vbase somewhere where we can
362 	 * write data without causing too much damage...
363 	 */
364 
365 	minfo->dead = 1;
366 	if (minfo->usecount) {
367 		/* destroy it later */
368 		return;
369 	}
370 	matroxfb_unregister_device(minfo);
371 	unregister_framebuffer(&minfo->fbcon);
372 	matroxfb_g450_shutdown(minfo);
373 	arch_phys_wc_del(minfo->wc_cookie);
374 	iounmap(minfo->mmio.vbase.vaddr);
375 	iounmap(minfo->video.vbase.vaddr);
376 	release_mem_region(minfo->video.base, minfo->video.len_maximum);
377 	release_mem_region(minfo->mmio.base, 16384);
378 	kfree(minfo);
379 }
380 
381 	/*
382 	 * Open/Release the frame buffer device
383 	 */
384 
385 static int matroxfb_open(struct fb_info *info, int user)
386 {
387 	struct matrox_fb_info *minfo = info2minfo(info);
388 
389 	DBG_LOOP(__func__)
390 
391 	if (minfo->dead) {
392 		return -ENXIO;
393 	}
394 	minfo->usecount++;
395 	if (user) {
396 		minfo->userusecount++;
397 	}
398 	return(0);
399 }
400 
401 static int matroxfb_release(struct fb_info *info, int user)
402 {
403 	struct matrox_fb_info *minfo = info2minfo(info);
404 
405 	DBG_LOOP(__func__)
406 
407 	if (user) {
408 		if (0 == --minfo->userusecount) {
409 			matroxfb_disable_irq(minfo);
410 		}
411 	}
412 	if (!(--minfo->usecount) && minfo->dead) {
413 		matroxfb_remove(minfo, 0);
414 	}
415 	return(0);
416 }
417 
418 static int matroxfb_pan_display(struct fb_var_screeninfo *var,
419 		struct fb_info* info) {
420 	struct matrox_fb_info *minfo = info2minfo(info);
421 
422 	DBG(__func__)
423 
424 	matrox_pan_var(minfo, var);
425 	return 0;
426 }
427 
428 static int matroxfb_get_final_bppShift(const struct matrox_fb_info *minfo,
429 				       int bpp)
430 {
431 	int bppshft2;
432 
433 	DBG(__func__)
434 
435 	bppshft2 = bpp;
436 	if (!bppshft2) {
437 		return 8;
438 	}
439 	if (isInterleave(minfo))
440 		bppshft2 >>= 1;
441 	if (minfo->devflags.video64bits)
442 		bppshft2 >>= 1;
443 	return bppshft2;
444 }
445 
446 static int matroxfb_test_and_set_rounding(const struct matrox_fb_info *minfo,
447 					  int xres, int bpp)
448 {
449 	int over;
450 	int rounding;
451 
452 	DBG(__func__)
453 
454 	switch (bpp) {
455 		case 0:		return xres;
456 		case 4:		rounding = 128;
457 				break;
458 		case 8:		rounding = 64;	/* doc says 64; 32 is OK for G400 */
459 				break;
460 		case 16:	rounding = 32;
461 				break;
462 		case 24:	rounding = 64;	/* doc says 64; 32 is OK for G400 */
463 				break;
464 		default:	rounding = 16;
465 				/* on G400, 16 really does not work */
466 				if (minfo->devflags.accelerator == FB_ACCEL_MATROX_MGAG400)
467 					rounding = 32;
468 				break;
469 	}
470 	if (isInterleave(minfo)) {
471 		rounding *= 2;
472 	}
473 	over = xres % rounding;
474 	if (over)
475 		xres += rounding-over;
476 	return xres;
477 }
478 
479 static int matroxfb_pitch_adjust(const struct matrox_fb_info *minfo, int xres,
480 				 int bpp)
481 {
482 	const int* width;
483 	int xres_new;
484 
485 	DBG(__func__)
486 
487 	if (!bpp) return xres;
488 
489 	width = minfo->capable.vxres;
490 
491 	if (minfo->devflags.precise_width) {
492 		while (*width) {
493 			if ((*width >= xres) && (matroxfb_test_and_set_rounding(minfo, *width, bpp) == *width)) {
494 				break;
495 			}
496 			width++;
497 		}
498 		xres_new = *width;
499 	} else {
500 		xres_new = matroxfb_test_and_set_rounding(minfo, xres, bpp);
501 	}
502 	return xres_new;
503 }
504 
505 static int matroxfb_get_cmap_len(struct fb_var_screeninfo *var) {
506 
507 	DBG(__func__)
508 
509 	switch (var->bits_per_pixel) {
510 		case 4:
511 			return 16;	/* pseudocolor... 16 entries HW palette */
512 		case 8:
513 			return 256;	/* pseudocolor... 256 entries HW palette */
514 		case 16:
515 			return 16;	/* directcolor... 16 entries SW palette */
516 					/* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
517 		case 24:
518 			return 16;	/* directcolor... 16 entries SW palette */
519 					/* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
520 		case 32:
521 			return 16;	/* directcolor... 16 entries SW palette */
522 					/* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
523 	}
524 	return 16;	/* return something reasonable... or panic()? */
525 }
526 
527 static int matroxfb_decode_var(const struct matrox_fb_info *minfo,
528 			       struct fb_var_screeninfo *var, int *visual,
529 			       int *video_cmap_len, unsigned int* ydstorg)
530 {
531 	struct RGBT {
532 		unsigned char bpp;
533 		struct {
534 			unsigned char offset,
535 				      length;
536 		} red,
537 		  green,
538 		  blue,
539 		  transp;
540 		signed char visual;
541 	};
542 	static const struct RGBT table[]= {
543 		{ 8,{ 0,8},{0,8},{0,8},{ 0,0},MX_VISUAL_PSEUDOCOLOR},
544 		{15,{10,5},{5,5},{0,5},{15,1},MX_VISUAL_DIRECTCOLOR},
545 		{16,{11,5},{5,6},{0,5},{ 0,0},MX_VISUAL_DIRECTCOLOR},
546 		{24,{16,8},{8,8},{0,8},{ 0,0},MX_VISUAL_DIRECTCOLOR},
547 		{32,{16,8},{8,8},{0,8},{24,8},MX_VISUAL_DIRECTCOLOR}
548 	};
549 	struct RGBT const *rgbt;
550 	unsigned int bpp = var->bits_per_pixel;
551 	unsigned int vramlen;
552 	unsigned int memlen;
553 
554 	DBG(__func__)
555 
556 	switch (bpp) {
557 		case 4:	 if (!minfo->capable.cfb4) return -EINVAL;
558 			 break;
559 		case 8:	 break;
560 		case 16: break;
561 		case 24: break;
562 		case 32: break;
563 		default: return -EINVAL;
564 	}
565 	*ydstorg = 0;
566 	vramlen = minfo->video.len_usable;
567 	if (var->yres_virtual < var->yres)
568 		var->yres_virtual = var->yres;
569 	if (var->xres_virtual < var->xres)
570 		var->xres_virtual = var->xres;
571 
572 	var->xres_virtual = matroxfb_pitch_adjust(minfo, var->xres_virtual, bpp);
573 	memlen = var->xres_virtual * bpp * var->yres_virtual / 8;
574 	if (memlen > vramlen) {
575 		var->yres_virtual = vramlen * 8 / (var->xres_virtual * bpp);
576 		memlen = var->xres_virtual * bpp * var->yres_virtual / 8;
577 	}
578 	/* There is hardware bug that no line can cross 4MB boundary */
579 	/* give up for CFB24, it is impossible to easy workaround it */
580 	/* for other try to do something */
581 	if (!minfo->capable.cross4MB && (memlen > 0x400000)) {
582 		if (bpp == 24) {
583 			/* sorry */
584 		} else {
585 			unsigned int linelen;
586 			unsigned int m1 = linelen = var->xres_virtual * bpp / 8;
587 			unsigned int m2 = PAGE_SIZE;	/* or 128 if you do not need PAGE ALIGNED address */
588 			unsigned int max_yres;
589 
590 			while (m1) {
591 				while (m2 >= m1) m2 -= m1;
592 				swap(m1, m2);
593 			}
594 			m2 = linelen * PAGE_SIZE / m2;
595 			*ydstorg = m2 = 0x400000 % m2;
596 			max_yres = (vramlen - m2) / linelen;
597 			if (var->yres_virtual > max_yres)
598 				var->yres_virtual = max_yres;
599 		}
600 	}
601 	/* YDSTLEN contains only signed 16bit value */
602 	if (var->yres_virtual > 32767)
603 		var->yres_virtual = 32767;
604 	/* we must round yres/xres down, we already rounded y/xres_virtual up
605 	   if it was possible. We should return -EINVAL, but I disagree */
606 	if (var->yres_virtual < var->yres)
607 		var->yres = var->yres_virtual;
608 	if (var->xres_virtual < var->xres)
609 		var->xres = var->xres_virtual;
610 	if (var->xoffset + var->xres > var->xres_virtual)
611 		var->xoffset = var->xres_virtual - var->xres;
612 	if (var->yoffset + var->yres > var->yres_virtual)
613 		var->yoffset = var->yres_virtual - var->yres;
614 
615 	if (bpp == 16 && var->green.length == 5) {
616 		bpp--; /* an artificial value - 15 */
617 	}
618 
619 	for (rgbt = table; rgbt->bpp < bpp; rgbt++);
620 #define	SETCLR(clr)\
621 	var->clr.offset = rgbt->clr.offset;\
622 	var->clr.length = rgbt->clr.length
623 	SETCLR(red);
624 	SETCLR(green);
625 	SETCLR(blue);
626 	SETCLR(transp);
627 #undef	SETCLR
628 	*visual = rgbt->visual;
629 
630 	if (bpp > 8)
631 		dprintk("matroxfb: truecolor: "
632 			"size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
633 			var->transp.length, var->red.length, var->green.length, var->blue.length,
634 			var->transp.offset, var->red.offset, var->green.offset, var->blue.offset);
635 
636 	*video_cmap_len = matroxfb_get_cmap_len(var);
637 	dprintk(KERN_INFO "requested %d*%d/%dbpp (%d*%d)\n", var->xres, var->yres, var->bits_per_pixel,
638 				var->xres_virtual, var->yres_virtual);
639 	return 0;
640 }
641 
642 static int matroxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
643 			      unsigned blue, unsigned transp,
644 			      struct fb_info *fb_info)
645 {
646 	struct matrox_fb_info* minfo = container_of(fb_info, struct matrox_fb_info, fbcon);
647 
648 	DBG(__func__)
649 
650 	/*
651 	 *  Set a single color register. The values supplied are
652 	 *  already rounded down to the hardware's capabilities
653 	 *  (according to the entries in the `var' structure). Return
654 	 *  != 0 for invalid regno.
655 	 */
656 
657 	if (regno >= minfo->curr.cmap_len)
658 		return 1;
659 
660 	if (minfo->fbcon.var.grayscale) {
661 		/* gray = 0.30*R + 0.59*G + 0.11*B */
662 		red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
663 	}
664 
665 	red = CNVT_TOHW(red, minfo->fbcon.var.red.length);
666 	green = CNVT_TOHW(green, minfo->fbcon.var.green.length);
667 	blue = CNVT_TOHW(blue, minfo->fbcon.var.blue.length);
668 	transp = CNVT_TOHW(transp, minfo->fbcon.var.transp.length);
669 
670 	switch (minfo->fbcon.var.bits_per_pixel) {
671 	case 4:
672 	case 8:
673 		mga_outb(M_DAC_REG, regno);
674 		mga_outb(M_DAC_VAL, red);
675 		mga_outb(M_DAC_VAL, green);
676 		mga_outb(M_DAC_VAL, blue);
677 		break;
678 	case 16:
679 		if (regno >= 16)
680 			break;
681 		{
682 			u_int16_t col =
683 				(red << minfo->fbcon.var.red.offset)     |
684 				(green << minfo->fbcon.var.green.offset) |
685 				(blue << minfo->fbcon.var.blue.offset)   |
686 				(transp << minfo->fbcon.var.transp.offset); /* for 1:5:5:5 */
687 			minfo->cmap[regno] = col | (col << 16);
688 		}
689 		break;
690 	case 24:
691 	case 32:
692 		if (regno >= 16)
693 			break;
694 		minfo->cmap[regno] =
695 			(red   << minfo->fbcon.var.red.offset)   |
696 			(green << minfo->fbcon.var.green.offset) |
697 			(blue  << minfo->fbcon.var.blue.offset)  |
698 			(transp << minfo->fbcon.var.transp.offset);	/* 8:8:8:8 */
699 		break;
700 	}
701 	return 0;
702 }
703 
704 static void matroxfb_init_fix(struct matrox_fb_info *minfo)
705 {
706 	struct fb_fix_screeninfo *fix = &minfo->fbcon.fix;
707 	DBG(__func__)
708 
709 	strcpy(fix->id,"MATROX");
710 
711 	fix->xpanstep = 8;	/* 8 for 8bpp, 4 for 16bpp, 2 for 32bpp */
712 	fix->ypanstep = 1;
713 	fix->ywrapstep = 0;
714 	fix->mmio_start = minfo->mmio.base;
715 	fix->mmio_len = minfo->mmio.len;
716 	fix->accel = minfo->devflags.accelerator;
717 }
718 
719 static void matroxfb_update_fix(struct matrox_fb_info *minfo)
720 {
721 	struct fb_fix_screeninfo *fix = &minfo->fbcon.fix;
722 	DBG(__func__)
723 
724 	mutex_lock(&minfo->fbcon.mm_lock);
725 	fix->smem_start = minfo->video.base + minfo->curr.ydstorg.bytes;
726 	fix->smem_len = minfo->video.len_usable - minfo->curr.ydstorg.bytes;
727 	mutex_unlock(&minfo->fbcon.mm_lock);
728 }
729 
730 static int matroxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
731 {
732 	int err;
733 	int visual;
734 	int cmap_len;
735 	unsigned int ydstorg;
736 	struct matrox_fb_info *minfo = info2minfo(info);
737 
738 	if (minfo->dead) {
739 		return -ENXIO;
740 	}
741 	if ((err = matroxfb_decode_var(minfo, var, &visual, &cmap_len, &ydstorg)) != 0)
742 		return err;
743 	return 0;
744 }
745 
746 static int matroxfb_set_par(struct fb_info *info)
747 {
748 	int err;
749 	int visual;
750 	int cmap_len;
751 	unsigned int ydstorg;
752 	struct fb_var_screeninfo *var;
753 	struct matrox_fb_info *minfo = info2minfo(info);
754 
755 	DBG(__func__)
756 
757 	if (minfo->dead) {
758 		return -ENXIO;
759 	}
760 
761 	var = &info->var;
762 	if ((err = matroxfb_decode_var(minfo, var, &visual, &cmap_len, &ydstorg)) != 0)
763 		return err;
764 	minfo->fbcon.screen_base = vaddr_va(minfo->video.vbase) + ydstorg;
765 	matroxfb_update_fix(minfo);
766 	minfo->fbcon.fix.visual = visual;
767 	minfo->fbcon.fix.type = FB_TYPE_PACKED_PIXELS;
768 	minfo->fbcon.fix.type_aux = 0;
769 	minfo->fbcon.fix.line_length = (var->xres_virtual * var->bits_per_pixel) >> 3;
770 	{
771 		unsigned int pos;
772 
773 		minfo->curr.cmap_len = cmap_len;
774 		ydstorg += minfo->devflags.ydstorg;
775 		minfo->curr.ydstorg.bytes = ydstorg;
776 		minfo->curr.ydstorg.chunks = ydstorg >> (isInterleave(minfo) ? 3 : 2);
777 		if (var->bits_per_pixel == 4)
778 			minfo->curr.ydstorg.pixels = ydstorg;
779 		else
780 			minfo->curr.ydstorg.pixels = (ydstorg * 8) / var->bits_per_pixel;
781 		minfo->curr.final_bppShift = matroxfb_get_final_bppShift(minfo, var->bits_per_pixel);
782 		{	struct my_timming mt;
783 			struct matrox_hw_state* hw;
784 			int out;
785 
786 			matroxfb_var2my(var, &mt);
787 			mt.crtc = MATROXFB_SRC_CRTC1;
788 			/* CRTC1 delays */
789 			switch (var->bits_per_pixel) {
790 				case  0:	mt.delay = 31 + 0; break;
791 				case 16:	mt.delay = 21 + 8; break;
792 				case 24:	mt.delay = 17 + 8; break;
793 				case 32:	mt.delay = 16 + 8; break;
794 				default:	mt.delay = 31 + 8; break;
795 			}
796 
797 			hw = &minfo->hw;
798 
799 			down_read(&minfo->altout.lock);
800 			for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
801 				if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
802 				    minfo->outputs[out].output->compute) {
803 					minfo->outputs[out].output->compute(minfo->outputs[out].data, &mt);
804 				}
805 			}
806 			up_read(&minfo->altout.lock);
807 			minfo->crtc1.pixclock = mt.pixclock;
808 			minfo->crtc1.mnp = mt.mnp;
809 			minfo->hw_switch->init(minfo, &mt);
810 			pos = (var->yoffset * var->xres_virtual + var->xoffset) * minfo->curr.final_bppShift / 32;
811 			pos += minfo->curr.ydstorg.chunks;
812 
813 			hw->CRTC[0x0D] = pos & 0xFF;
814 			hw->CRTC[0x0C] = (pos & 0xFF00) >> 8;
815 			hw->CRTCEXT[0] = (hw->CRTCEXT[0] & 0xF0) | ((pos >> 16) & 0x0F) | ((pos >> 14) & 0x40);
816 			hw->CRTCEXT[8] = pos >> 21;
817 			minfo->hw_switch->restore(minfo);
818 			update_crtc2(minfo, pos);
819 			down_read(&minfo->altout.lock);
820 			for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
821 				if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
822 				    minfo->outputs[out].output->program) {
823 					minfo->outputs[out].output->program(minfo->outputs[out].data);
824 				}
825 			}
826 			for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
827 				if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
828 				    minfo->outputs[out].output->start) {
829 					minfo->outputs[out].output->start(minfo->outputs[out].data);
830 				}
831 			}
832 			up_read(&minfo->altout.lock);
833 			matrox_cfbX_init(minfo);
834 		}
835 	}
836 	minfo->initialized = 1;
837 	return 0;
838 }
839 
840 static int matroxfb_get_vblank(struct matrox_fb_info *minfo,
841 			       struct fb_vblank *vblank)
842 {
843 	unsigned int sts1;
844 
845 	matroxfb_enable_irq(minfo, 0);
846 	memset(vblank, 0, sizeof(*vblank));
847 	vblank->flags = FB_VBLANK_HAVE_VCOUNT | FB_VBLANK_HAVE_VSYNC |
848 			FB_VBLANK_HAVE_VBLANK | FB_VBLANK_HAVE_HBLANK;
849 	sts1 = mga_inb(M_INSTS1);
850 	vblank->vcount = mga_inl(M_VCOUNT);
851 	/* BTW, on my PIII/450 with G400, reading M_INSTS1
852 	   byte makes this call about 12% slower (1.70 vs. 2.05 us
853 	   per ioctl()) */
854 	if (sts1 & 1)
855 		vblank->flags |= FB_VBLANK_HBLANKING;
856 	if (sts1 & 8)
857 		vblank->flags |= FB_VBLANK_VSYNCING;
858 	if (vblank->vcount >= minfo->fbcon.var.yres)
859 		vblank->flags |= FB_VBLANK_VBLANKING;
860 	if (test_bit(0, &minfo->irq_flags)) {
861 		vblank->flags |= FB_VBLANK_HAVE_COUNT;
862 		/* Only one writer, aligned int value...
863 		   it should work without lock and without atomic_t */
864 		vblank->count = minfo->crtc1.vsync.cnt;
865 	}
866 	return 0;
867 }
868 
869 static struct matrox_altout panellink_output = {
870 	.name	 = "Panellink output",
871 };
872 
873 static int matroxfb_ioctl(struct fb_info *info,
874 			  unsigned int cmd, unsigned long arg)
875 {
876 	void __user *argp = (void __user *)arg;
877 	struct matrox_fb_info *minfo = info2minfo(info);
878 
879 	DBG(__func__)
880 
881 	if (minfo->dead) {
882 		return -ENXIO;
883 	}
884 
885 	switch (cmd) {
886 		case FBIOGET_VBLANK:
887 			{
888 				struct fb_vblank vblank;
889 				int err;
890 
891 				err = matroxfb_get_vblank(minfo, &vblank);
892 				if (err)
893 					return err;
894 				if (copy_to_user(argp, &vblank, sizeof(vblank)))
895 					return -EFAULT;
896 				return 0;
897 			}
898 		case FBIO_WAITFORVSYNC:
899 			{
900 				u_int32_t crt;
901 
902 				if (get_user(crt, (u_int32_t __user *)arg))
903 					return -EFAULT;
904 
905 				return matroxfb_wait_for_sync(minfo, crt);
906 			}
907 		case MATROXFB_SET_OUTPUT_MODE:
908 			{
909 				struct matroxioc_output_mode mom;
910 				struct matrox_altout *oproc;
911 				int val;
912 
913 				if (copy_from_user(&mom, argp, sizeof(mom)))
914 					return -EFAULT;
915 				if (mom.output >= MATROXFB_MAX_OUTPUTS)
916 					return -ENXIO;
917 				down_read(&minfo->altout.lock);
918 				oproc = minfo->outputs[mom.output].output;
919 				if (!oproc) {
920 					val = -ENXIO;
921 				} else if (!oproc->verifymode) {
922 					if (mom.mode == MATROXFB_OUTPUT_MODE_MONITOR) {
923 						val = 0;
924 					} else {
925 						val = -EINVAL;
926 					}
927 				} else {
928 					val = oproc->verifymode(minfo->outputs[mom.output].data, mom.mode);
929 				}
930 				if (!val) {
931 					if (minfo->outputs[mom.output].mode != mom.mode) {
932 						minfo->outputs[mom.output].mode = mom.mode;
933 						val = 1;
934 					}
935 				}
936 				up_read(&minfo->altout.lock);
937 				if (val != 1)
938 					return val;
939 				switch (minfo->outputs[mom.output].src) {
940 					case MATROXFB_SRC_CRTC1:
941 						matroxfb_set_par(info);
942 						break;
943 					case MATROXFB_SRC_CRTC2:
944 						{
945 							struct matroxfb_dh_fb_info* crtc2;
946 
947 							down_read(&minfo->crtc2.lock);
948 							crtc2 = minfo->crtc2.info;
949 							if (crtc2)
950 								crtc2->fbcon.fbops->fb_set_par(&crtc2->fbcon);
951 							up_read(&minfo->crtc2.lock);
952 						}
953 						break;
954 				}
955 				return 0;
956 			}
957 		case MATROXFB_GET_OUTPUT_MODE:
958 			{
959 				struct matroxioc_output_mode mom;
960 				struct matrox_altout *oproc;
961 				int val;
962 
963 				if (copy_from_user(&mom, argp, sizeof(mom)))
964 					return -EFAULT;
965 				if (mom.output >= MATROXFB_MAX_OUTPUTS)
966 					return -ENXIO;
967 				down_read(&minfo->altout.lock);
968 				oproc = minfo->outputs[mom.output].output;
969 				if (!oproc) {
970 					val = -ENXIO;
971 				} else {
972 					mom.mode = minfo->outputs[mom.output].mode;
973 					val = 0;
974 				}
975 				up_read(&minfo->altout.lock);
976 				if (val)
977 					return val;
978 				if (copy_to_user(argp, &mom, sizeof(mom)))
979 					return -EFAULT;
980 				return 0;
981 			}
982 		case MATROXFB_SET_OUTPUT_CONNECTION:
983 			{
984 				u_int32_t tmp;
985 				int i;
986 				int changes;
987 
988 				if (copy_from_user(&tmp, argp, sizeof(tmp)))
989 					return -EFAULT;
990 				for (i = 0; i < 32; i++) {
991 					if (tmp & (1 << i)) {
992 						if (i >= MATROXFB_MAX_OUTPUTS)
993 							return -ENXIO;
994 						if (!minfo->outputs[i].output)
995 							return -ENXIO;
996 						switch (minfo->outputs[i].src) {
997 							case MATROXFB_SRC_NONE:
998 							case MATROXFB_SRC_CRTC1:
999 								break;
1000 							default:
1001 								return -EBUSY;
1002 						}
1003 					}
1004 				}
1005 				if (minfo->devflags.panellink) {
1006 					if (tmp & MATROXFB_OUTPUT_CONN_DFP) {
1007 						if (tmp & MATROXFB_OUTPUT_CONN_SECONDARY)
1008 							return -EINVAL;
1009 						for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1010 							if (minfo->outputs[i].src == MATROXFB_SRC_CRTC2) {
1011 								return -EBUSY;
1012 							}
1013 						}
1014 					}
1015 				}
1016 				changes = 0;
1017 				for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1018 					if (tmp & (1 << i)) {
1019 						if (minfo->outputs[i].src != MATROXFB_SRC_CRTC1) {
1020 							changes = 1;
1021 							minfo->outputs[i].src = MATROXFB_SRC_CRTC1;
1022 						}
1023 					} else if (minfo->outputs[i].src == MATROXFB_SRC_CRTC1) {
1024 						changes = 1;
1025 						minfo->outputs[i].src = MATROXFB_SRC_NONE;
1026 					}
1027 				}
1028 				if (!changes)
1029 					return 0;
1030 				matroxfb_set_par(info);
1031 				return 0;
1032 			}
1033 		case MATROXFB_GET_OUTPUT_CONNECTION:
1034 			{
1035 				u_int32_t conn = 0;
1036 				int i;
1037 
1038 				for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1039 					if (minfo->outputs[i].src == MATROXFB_SRC_CRTC1) {
1040 						conn |= 1 << i;
1041 					}
1042 				}
1043 				if (put_user(conn, (u_int32_t __user *)arg))
1044 					return -EFAULT;
1045 				return 0;
1046 			}
1047 		case MATROXFB_GET_AVAILABLE_OUTPUTS:
1048 			{
1049 				u_int32_t conn = 0;
1050 				int i;
1051 
1052 				for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1053 					if (minfo->outputs[i].output) {
1054 						switch (minfo->outputs[i].src) {
1055 							case MATROXFB_SRC_NONE:
1056 							case MATROXFB_SRC_CRTC1:
1057 								conn |= 1 << i;
1058 								break;
1059 						}
1060 					}
1061 				}
1062 				if (minfo->devflags.panellink) {
1063 					if (conn & MATROXFB_OUTPUT_CONN_DFP)
1064 						conn &= ~MATROXFB_OUTPUT_CONN_SECONDARY;
1065 					if (conn & MATROXFB_OUTPUT_CONN_SECONDARY)
1066 						conn &= ~MATROXFB_OUTPUT_CONN_DFP;
1067 				}
1068 				if (put_user(conn, (u_int32_t __user *)arg))
1069 					return -EFAULT;
1070 				return 0;
1071 			}
1072 		case MATROXFB_GET_ALL_OUTPUTS:
1073 			{
1074 				u_int32_t conn = 0;
1075 				int i;
1076 
1077 				for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1078 					if (minfo->outputs[i].output) {
1079 						conn |= 1 << i;
1080 					}
1081 				}
1082 				if (put_user(conn, (u_int32_t __user *)arg))
1083 					return -EFAULT;
1084 				return 0;
1085 			}
1086 		case VIDIOC_QUERYCAP:
1087 			{
1088 				struct v4l2_capability r;
1089 
1090 				memset(&r, 0, sizeof(r));
1091 				strcpy(r.driver, "matroxfb");
1092 				strcpy(r.card, "Matrox");
1093 				sprintf(r.bus_info, "PCI:%s", pci_name(minfo->pcidev));
1094 				r.version = KERNEL_VERSION(1,0,0);
1095 				r.capabilities = V4L2_CAP_VIDEO_OUTPUT;
1096 				if (copy_to_user(argp, &r, sizeof(r)))
1097 					return -EFAULT;
1098 				return 0;
1099 
1100 			}
1101 		case VIDIOC_QUERYCTRL:
1102 			{
1103 				struct v4l2_queryctrl qctrl;
1104 				int err;
1105 
1106 				if (copy_from_user(&qctrl, argp, sizeof(qctrl)))
1107 					return -EFAULT;
1108 
1109 				down_read(&minfo->altout.lock);
1110 				if (!minfo->outputs[1].output) {
1111 					err = -ENXIO;
1112 				} else if (minfo->outputs[1].output->getqueryctrl) {
1113 					err = minfo->outputs[1].output->getqueryctrl(minfo->outputs[1].data, &qctrl);
1114 				} else {
1115 					err = -EINVAL;
1116 				}
1117 				up_read(&minfo->altout.lock);
1118 				if (err >= 0 &&
1119 				    copy_to_user(argp, &qctrl, sizeof(qctrl)))
1120 					return -EFAULT;
1121 				return err;
1122 			}
1123 		case VIDIOC_G_CTRL:
1124 			{
1125 				struct v4l2_control ctrl;
1126 				int err;
1127 
1128 				if (copy_from_user(&ctrl, argp, sizeof(ctrl)))
1129 					return -EFAULT;
1130 
1131 				down_read(&minfo->altout.lock);
1132 				if (!minfo->outputs[1].output) {
1133 					err = -ENXIO;
1134 				} else if (minfo->outputs[1].output->getctrl) {
1135 					err = minfo->outputs[1].output->getctrl(minfo->outputs[1].data, &ctrl);
1136 				} else {
1137 					err = -EINVAL;
1138 				}
1139 				up_read(&minfo->altout.lock);
1140 				if (err >= 0 &&
1141 				    copy_to_user(argp, &ctrl, sizeof(ctrl)))
1142 					return -EFAULT;
1143 				return err;
1144 			}
1145 		case VIDIOC_S_CTRL:
1146 			{
1147 				struct v4l2_control ctrl;
1148 				int err;
1149 
1150 				if (copy_from_user(&ctrl, argp, sizeof(ctrl)))
1151 					return -EFAULT;
1152 
1153 				down_read(&minfo->altout.lock);
1154 				if (!minfo->outputs[1].output) {
1155 					err = -ENXIO;
1156 				} else if (minfo->outputs[1].output->setctrl) {
1157 					err = minfo->outputs[1].output->setctrl(minfo->outputs[1].data, &ctrl);
1158 				} else {
1159 					err = -EINVAL;
1160 				}
1161 				up_read(&minfo->altout.lock);
1162 				return err;
1163 			}
1164 	}
1165 	return -ENOTTY;
1166 }
1167 
1168 /* 0 unblank, 1 blank, 2 no vsync, 3 no hsync, 4 off */
1169 
1170 static int matroxfb_blank(int blank, struct fb_info *info)
1171 {
1172 	int seq;
1173 	int crtc;
1174 	CRITFLAGS
1175 	struct matrox_fb_info *minfo = info2minfo(info);
1176 
1177 	DBG(__func__)
1178 
1179 	if (minfo->dead)
1180 		return 1;
1181 
1182 	switch (blank) {
1183 	case FB_BLANK_NORMAL:  seq = 0x20; crtc = 0x00; break; /* works ??? */
1184 	case FB_BLANK_VSYNC_SUSPEND:  seq = 0x20; crtc = 0x10; break;
1185 	case FB_BLANK_HSYNC_SUSPEND:  seq = 0x20; crtc = 0x20; break;
1186 	case FB_BLANK_POWERDOWN:  seq = 0x20; crtc = 0x30; break;
1187 	default: seq = 0x00; crtc = 0x00; break;
1188 	}
1189 
1190 	CRITBEGIN
1191 
1192 	mga_outb(M_SEQ_INDEX, 1);
1193 	mga_outb(M_SEQ_DATA, (mga_inb(M_SEQ_DATA) & ~0x20) | seq);
1194 	mga_outb(M_EXTVGA_INDEX, 1);
1195 	mga_outb(M_EXTVGA_DATA, (mga_inb(M_EXTVGA_DATA) & ~0x30) | crtc);
1196 
1197 	CRITEND
1198 	return 0;
1199 }
1200 
1201 static const struct fb_ops matroxfb_ops = {
1202 	.owner =	THIS_MODULE,
1203 	.fb_open =	matroxfb_open,
1204 	.fb_release =	matroxfb_release,
1205 	.fb_check_var =	matroxfb_check_var,
1206 	.fb_set_par =	matroxfb_set_par,
1207 	.fb_setcolreg =	matroxfb_setcolreg,
1208 	.fb_pan_display =matroxfb_pan_display,
1209 	.fb_blank =	matroxfb_blank,
1210 	.fb_ioctl =	matroxfb_ioctl,
1211 /*	.fb_fillrect =	<set by matrox_cfbX_init>, */
1212 /*	.fb_copyarea =	<set by matrox_cfbX_init>, */
1213 /*	.fb_imageblit =	<set by matrox_cfbX_init>, */
1214 /*	.fb_cursor =	<set by matrox_cfbX_init>, */
1215 };
1216 
1217 #define RSDepth(X)	(((X) >> 8) & 0x0F)
1218 #define RS8bpp		0x1
1219 #define RS15bpp		0x2
1220 #define RS16bpp		0x3
1221 #define RS32bpp		0x4
1222 #define RS4bpp		0x5
1223 #define RS24bpp		0x6
1224 #define RSText		0x7
1225 #define RSText8		0x8
1226 /* 9-F */
1227 static struct { struct fb_bitfield red, green, blue, transp; int bits_per_pixel; } colors[] = {
1228 	{ {  0, 8, 0}, { 0, 8, 0}, { 0, 8, 0}, {  0, 0, 0},  8 },
1229 	{ { 10, 5, 0}, { 5, 5, 0}, { 0, 5, 0}, { 15, 1, 0}, 16 },
1230 	{ { 11, 5, 0}, { 5, 6, 0}, { 0, 5, 0}, {  0, 0, 0}, 16 },
1231 	{ { 16, 8, 0}, { 8, 8, 0}, { 0, 8, 0}, { 24, 8, 0}, 32 },
1232 	{ {  0, 8, 0}, { 0, 8, 0}, { 0, 8, 0}, {  0, 0, 0},  4 },
1233 	{ { 16, 8, 0}, { 8, 8, 0}, { 0, 8, 0}, {  0, 0, 0}, 24 },
1234 	{ {  0, 6, 0}, { 0, 6, 0}, { 0, 6, 0}, {  0, 0, 0},  0 },	/* textmode with (default) VGA8x16 */
1235 	{ {  0, 6, 0}, { 0, 6, 0}, { 0, 6, 0}, {  0, 0, 0},  0 },	/* textmode hardwired to VGA8x8 */
1236 };
1237 
1238 /* initialized by setup, see explanation at end of file (search for MODULE_PARM_DESC) */
1239 static unsigned int mem;		/* "matroxfb:mem:xxxxxM" */
1240 static int option_precise_width = 1;	/* cannot be changed, option_precise_width==0 must imply noaccel */
1241 static int inv24;			/* "matroxfb:inv24" */
1242 static int cross4MB = -1;		/* "matroxfb:cross4MB" */
1243 static int disabled;			/* "matroxfb:disabled" */
1244 static int noaccel;			/* "matroxfb:noaccel" */
1245 static int nopan;			/* "matroxfb:nopan" */
1246 static int no_pci_retry;		/* "matroxfb:nopciretry" */
1247 static int novga;			/* "matroxfb:novga" */
1248 static int nobios;			/* "matroxfb:nobios" */
1249 static int noinit = 1;			/* "matroxfb:init" */
1250 static int inverse;			/* "matroxfb:inverse" */
1251 static int sgram;			/* "matroxfb:sgram" */
1252 static int mtrr = 1;			/* "matroxfb:nomtrr" */
1253 static int grayscale;			/* "matroxfb:grayscale" */
1254 static int dev = -1;			/* "matroxfb:dev:xxxxx" */
1255 static unsigned int vesa = ~0;		/* "matroxfb:vesa:xxxxx" */
1256 static int depth = -1;			/* "matroxfb:depth:xxxxx" */
1257 static unsigned int xres;		/* "matroxfb:xres:xxxxx" */
1258 static unsigned int yres;		/* "matroxfb:yres:xxxxx" */
1259 static unsigned int upper = ~0;		/* "matroxfb:upper:xxxxx" */
1260 static unsigned int lower = ~0;		/* "matroxfb:lower:xxxxx" */
1261 static unsigned int vslen;		/* "matroxfb:vslen:xxxxx" */
1262 static unsigned int left = ~0;		/* "matroxfb:left:xxxxx" */
1263 static unsigned int right = ~0;		/* "matroxfb:right:xxxxx" */
1264 static unsigned int hslen;		/* "matroxfb:hslen:xxxxx" */
1265 static unsigned int pixclock;		/* "matroxfb:pixclock:xxxxx" */
1266 static int sync = -1;			/* "matroxfb:sync:xxxxx" */
1267 static unsigned int fv;			/* "matroxfb:fv:xxxxx" */
1268 static unsigned int fh;			/* "matroxfb:fh:xxxxxk" */
1269 static unsigned int maxclk;		/* "matroxfb:maxclk:xxxxM" */
1270 static int dfp;				/* "matroxfb:dfp */
1271 static int dfp_type = -1;		/* "matroxfb:dfp:xxx */
1272 static int memtype = -1;		/* "matroxfb:memtype:xxx" */
1273 static char outputs[8];			/* "matroxfb:outputs:xxx" */
1274 
1275 #ifndef MODULE
1276 static char videomode[64];		/* "matroxfb:mode:xxxxx" or "matroxfb:xxxxx" */
1277 #endif
1278 
1279 static int matroxfb_getmemory(struct matrox_fb_info *minfo,
1280 			      unsigned int maxSize, unsigned int *realSize)
1281 {
1282 	vaddr_t vm;
1283 	unsigned int offs;
1284 	unsigned int offs2;
1285 	unsigned char orig;
1286 	unsigned char bytes[32];
1287 	unsigned char* tmp;
1288 
1289 	DBG(__func__)
1290 
1291 	vm = minfo->video.vbase;
1292 	maxSize &= ~0x1FFFFF;	/* must be X*2MB (really it must be 2 or X*4MB) */
1293 	/* at least 2MB */
1294 	if (maxSize < 0x0200000) return 0;
1295 	if (maxSize > 0x2000000) maxSize = 0x2000000;
1296 
1297 	mga_outb(M_EXTVGA_INDEX, 0x03);
1298 	orig = mga_inb(M_EXTVGA_DATA);
1299 	mga_outb(M_EXTVGA_DATA, orig | 0x80);
1300 
1301 	tmp = bytes;
1302 	for (offs = 0x100000; offs < maxSize; offs += 0x200000)
1303 		*tmp++ = mga_readb(vm, offs);
1304 	for (offs = 0x100000; offs < maxSize; offs += 0x200000)
1305 		mga_writeb(vm, offs, 0x02);
1306 	mga_outb(M_CACHEFLUSH, 0x00);
1307 	for (offs = 0x100000; offs < maxSize; offs += 0x200000) {
1308 		if (mga_readb(vm, offs) != 0x02)
1309 			break;
1310 		mga_writeb(vm, offs, mga_readb(vm, offs) - 0x02);
1311 		if (mga_readb(vm, offs))
1312 			break;
1313 	}
1314 	tmp = bytes;
1315 	for (offs2 = 0x100000; offs2 < maxSize; offs2 += 0x200000)
1316 		mga_writeb(vm, offs2, *tmp++);
1317 
1318 	mga_outb(M_EXTVGA_INDEX, 0x03);
1319 	mga_outb(M_EXTVGA_DATA, orig);
1320 
1321 	*realSize = offs - 0x100000;
1322 #ifdef CONFIG_FB_MATROX_MILLENIUM
1323 	minfo->interleave = !(!isMillenium(minfo) || ((offs - 0x100000) & 0x3FFFFF));
1324 #endif
1325 	return 1;
1326 }
1327 
1328 struct video_board {
1329 	int maxvram;
1330 	int maxdisplayable;
1331 	int accelID;
1332 	struct matrox_switch* lowlevel;
1333 		 };
1334 #ifdef CONFIG_FB_MATROX_MILLENIUM
1335 static struct video_board vbMillennium = {
1336 	.maxvram = 0x0800000,
1337 	.maxdisplayable = 0x0800000,
1338 	.accelID = FB_ACCEL_MATROX_MGA2064W,
1339 	.lowlevel = &matrox_millennium
1340 };
1341 
1342 static struct video_board vbMillennium2 = {
1343 	.maxvram = 0x1000000,
1344 	.maxdisplayable = 0x0800000,
1345 	.accelID = FB_ACCEL_MATROX_MGA2164W,
1346 	.lowlevel = &matrox_millennium
1347 };
1348 
1349 static struct video_board vbMillennium2A = {
1350 	.maxvram = 0x1000000,
1351 	.maxdisplayable = 0x0800000,
1352 	.accelID = FB_ACCEL_MATROX_MGA2164W_AGP,
1353 	.lowlevel = &matrox_millennium
1354 };
1355 #endif	/* CONFIG_FB_MATROX_MILLENIUM */
1356 #ifdef CONFIG_FB_MATROX_MYSTIQUE
1357 static struct video_board vbMystique = {
1358 	.maxvram = 0x0800000,
1359 	.maxdisplayable = 0x0800000,
1360 	.accelID = FB_ACCEL_MATROX_MGA1064SG,
1361 	.lowlevel = &matrox_mystique
1362 };
1363 #endif	/* CONFIG_FB_MATROX_MYSTIQUE */
1364 #ifdef CONFIG_FB_MATROX_G
1365 static struct video_board vbG100 = {
1366 	.maxvram = 0x0800000,
1367 	.maxdisplayable = 0x0800000,
1368 	.accelID = FB_ACCEL_MATROX_MGAG100,
1369 	.lowlevel = &matrox_G100
1370 };
1371 
1372 static struct video_board vbG200 = {
1373 	.maxvram = 0x1000000,
1374 	.maxdisplayable = 0x1000000,
1375 	.accelID = FB_ACCEL_MATROX_MGAG200,
1376 	.lowlevel = &matrox_G100
1377 };
1378 /* from doc it looks like that accelerator can draw only to low 16MB :-( Direct accesses & displaying are OK for
1379    whole 32MB */
1380 static struct video_board vbG400 = {
1381 	.maxvram = 0x2000000,
1382 	.maxdisplayable = 0x1000000,
1383 	.accelID = FB_ACCEL_MATROX_MGAG400,
1384 	.lowlevel = &matrox_G100
1385 };
1386 #endif
1387 
1388 #define DEVF_VIDEO64BIT		0x0001
1389 #define	DEVF_SWAPS		0x0002
1390 #define DEVF_SRCORG		0x0004
1391 #define DEVF_DUALHEAD		0x0008
1392 #define DEVF_CROSS4MB		0x0010
1393 #define DEVF_TEXT4B		0x0020
1394 /* #define DEVF_recycled	0x0040	*/
1395 /* #define DEVF_recycled	0x0080	*/
1396 #define DEVF_SUPPORT32MB	0x0100
1397 #define DEVF_ANY_VXRES		0x0200
1398 #define DEVF_TEXT16B		0x0400
1399 #define DEVF_CRTC2		0x0800
1400 #define DEVF_MAVEN_CAPABLE	0x1000
1401 #define DEVF_PANELLINK_CAPABLE	0x2000
1402 #define DEVF_G450DAC		0x4000
1403 
1404 #define DEVF_GCORE	(DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB)
1405 #define DEVF_G2CORE	(DEVF_GCORE | DEVF_ANY_VXRES | DEVF_MAVEN_CAPABLE | DEVF_PANELLINK_CAPABLE | DEVF_SRCORG | DEVF_DUALHEAD)
1406 #define DEVF_G100	(DEVF_GCORE) /* no doc, no vxres... */
1407 #define DEVF_G200	(DEVF_G2CORE)
1408 #define DEVF_G400	(DEVF_G2CORE | DEVF_SUPPORT32MB | DEVF_TEXT16B | DEVF_CRTC2)
1409 /* if you'll find how to drive DFP... */
1410 #define DEVF_G450	(DEVF_GCORE | DEVF_ANY_VXRES | DEVF_SUPPORT32MB | DEVF_TEXT16B | DEVF_CRTC2 | DEVF_G450DAC | DEVF_SRCORG | DEVF_DUALHEAD)
1411 #define DEVF_G550	(DEVF_G450)
1412 
1413 static struct board {
1414 	unsigned short vendor, device, rev, svid, sid;
1415 	unsigned int flags;
1416 	unsigned int maxclk;
1417 	enum mga_chip chip;
1418 	struct video_board* base;
1419 	const char* name;
1420 		} dev_list[] = {
1421 #ifdef CONFIG_FB_MATROX_MILLENIUM
1422 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL,	0xFF,
1423 		0,			0,
1424 		DEVF_TEXT4B,
1425 		230000,
1426 		MGA_2064,
1427 		&vbMillennium,
1428 		"Millennium (PCI)"},
1429 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL_2,	0xFF,
1430 		0,			0,
1431 		DEVF_SWAPS,
1432 		220000,
1433 		MGA_2164,
1434 		&vbMillennium2,
1435 		"Millennium II (PCI)"},
1436 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL_2_AGP,	0xFF,
1437 		0,			0,
1438 		DEVF_SWAPS,
1439 		250000,
1440 		MGA_2164,
1441 		&vbMillennium2A,
1442 		"Millennium II (AGP)"},
1443 #endif
1444 #ifdef CONFIG_FB_MATROX_MYSTIQUE
1445 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS,	0x02,
1446 		0,			0,
1447 		DEVF_VIDEO64BIT | DEVF_CROSS4MB,
1448 		180000,
1449 		MGA_1064,
1450 		&vbMystique,
1451 		"Mystique (PCI)"},
1452 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS,	0xFF,
1453 		0,			0,
1454 		DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB,
1455 		220000,
1456 		MGA_1164,
1457 		&vbMystique,
1458 		"Mystique 220 (PCI)"},
1459 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS_AGP,	0x02,
1460 		0,			0,
1461 		DEVF_VIDEO64BIT | DEVF_CROSS4MB,
1462 		180000,
1463 		MGA_1064,
1464 		&vbMystique,
1465 		"Mystique (AGP)"},
1466 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS_AGP,	0xFF,
1467 		0,			0,
1468 		DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB,
1469 		220000,
1470 		MGA_1164,
1471 		&vbMystique,
1472 		"Mystique 220 (AGP)"},
1473 #endif
1474 #ifdef CONFIG_FB_MATROX_G
1475 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_MM,	0xFF,
1476 		0,			0,
1477 		DEVF_G100,
1478 		230000,
1479 		MGA_G100,
1480 		&vbG100,
1481 		"MGA-G100 (PCI)"},
1482 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_AGP,	0xFF,
1483 		0,			0,
1484 		DEVF_G100,
1485 		230000,
1486 		MGA_G100,
1487 		&vbG100,
1488 		"MGA-G100 (AGP)"},
1489 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_PCI,	0xFF,
1490 		0,			0,
1491 		DEVF_G200,
1492 		250000,
1493 		MGA_G200,
1494 		&vbG200,
1495 		"MGA-G200 (PCI)"},
1496 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1497 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_GENERIC,
1498 		DEVF_G200,
1499 		220000,
1500 		MGA_G200,
1501 		&vbG200,
1502 		"MGA-G200 (AGP)"},
1503 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1504 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MYSTIQUE_G200_AGP,
1505 		DEVF_G200,
1506 		230000,
1507 		MGA_G200,
1508 		&vbG200,
1509 		"Mystique G200 (AGP)"},
1510 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1511 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MILLENIUM_G200_AGP,
1512 		DEVF_G200,
1513 		250000,
1514 		MGA_G200,
1515 		&vbG200,
1516 		"Millennium G200 (AGP)"},
1517 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1518 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MARVEL_G200_AGP,
1519 		DEVF_G200,
1520 		230000,
1521 		MGA_G200,
1522 		&vbG200,
1523 		"Marvel G200 (AGP)"},
1524 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1525 		PCI_SS_VENDOR_ID_SIEMENS_NIXDORF,	PCI_SS_ID_SIEMENS_MGA_G200_AGP,
1526 		DEVF_G200,
1527 		230000,
1528 		MGA_G200,
1529 		&vbG200,
1530 		"MGA-G200 (AGP)"},
1531 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1532 		0,			0,
1533 		DEVF_G200,
1534 		230000,
1535 		MGA_G200,
1536 		&vbG200,
1537 		"G200 (AGP)"},
1538 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G400,	0x80,
1539 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MILLENNIUM_G400_MAX_AGP,
1540 		DEVF_G400,
1541 		360000,
1542 		MGA_G400,
1543 		&vbG400,
1544 		"Millennium G400 MAX (AGP)"},
1545 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G400,	0x80,
1546 		0,			0,
1547 		DEVF_G400,
1548 		300000,
1549 		MGA_G400,
1550 		&vbG400,
1551 		"G400 (AGP)"},
1552 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G400,	0xFF,
1553 		0,			0,
1554 		DEVF_G450,
1555 		360000,
1556 		MGA_G450,
1557 		&vbG400,
1558 		"G450"},
1559 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G550,	0xFF,
1560 		0,			0,
1561 		DEVF_G550,
1562 		360000,
1563 		MGA_G550,
1564 		&vbG400,
1565 		"G550"},
1566 #endif
1567 	{0,			0,				0xFF,
1568 		0,			0,
1569 		0,
1570 		0,
1571 		0,
1572 		NULL,
1573 		NULL}};
1574 
1575 #ifndef MODULE
1576 static const struct fb_videomode defaultmode = {
1577 	/* 640x480 @ 60Hz, 31.5 kHz */
1578 	NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
1579 	0, FB_VMODE_NONINTERLACED
1580 };
1581 
1582 static int hotplug = 0;
1583 #endif /* !MODULE */
1584 
1585 static void setDefaultOutputs(struct matrox_fb_info *minfo)
1586 {
1587 	unsigned int i;
1588 	const char* ptr;
1589 
1590 	minfo->outputs[0].default_src = MATROXFB_SRC_CRTC1;
1591 	if (minfo->devflags.g450dac) {
1592 		minfo->outputs[1].default_src = MATROXFB_SRC_CRTC1;
1593 		minfo->outputs[2].default_src = MATROXFB_SRC_CRTC1;
1594 	} else if (dfp) {
1595 		minfo->outputs[2].default_src = MATROXFB_SRC_CRTC1;
1596 	}
1597 	ptr = outputs;
1598 	for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1599 		char c = *ptr++;
1600 
1601 		if (c == 0) {
1602 			break;
1603 		}
1604 		if (c == '0') {
1605 			minfo->outputs[i].default_src = MATROXFB_SRC_NONE;
1606 		} else if (c == '1') {
1607 			minfo->outputs[i].default_src = MATROXFB_SRC_CRTC1;
1608 		} else if (c == '2' && minfo->devflags.crtc2) {
1609 			minfo->outputs[i].default_src = MATROXFB_SRC_CRTC2;
1610 		} else {
1611 			printk(KERN_ERR "matroxfb: Unknown outputs setting\n");
1612 			break;
1613 		}
1614 	}
1615 	/* Nullify this option for subsequent adapters */
1616 	outputs[0] = 0;
1617 }
1618 
1619 static int initMatrox2(struct matrox_fb_info *minfo, struct board *b)
1620 {
1621 	unsigned long ctrlptr_phys = 0;
1622 	unsigned long video_base_phys = 0;
1623 	unsigned int memsize;
1624 	int err;
1625 
1626 	static const struct pci_device_id intel_82437[] = {
1627 		{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437) },
1628 		{ },
1629 	};
1630 
1631 	DBG(__func__)
1632 
1633 	/* set default values... */
1634 	vesafb_defined.accel_flags = FB_ACCELF_TEXT;
1635 
1636 	minfo->hw_switch = b->base->lowlevel;
1637 	minfo->devflags.accelerator = b->base->accelID;
1638 	minfo->max_pixel_clock = b->maxclk;
1639 
1640 	printk(KERN_INFO "matroxfb: Matrox %s detected\n", b->name);
1641 	minfo->capable.plnwt = 1;
1642 	minfo->chip = b->chip;
1643 	minfo->capable.srcorg = b->flags & DEVF_SRCORG;
1644 	minfo->devflags.video64bits = b->flags & DEVF_VIDEO64BIT;
1645 	if (b->flags & DEVF_TEXT4B) {
1646 		minfo->devflags.vgastep = 4;
1647 		minfo->devflags.textmode = 4;
1648 		minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP16;
1649 	} else if (b->flags & DEVF_TEXT16B) {
1650 		minfo->devflags.vgastep = 16;
1651 		minfo->devflags.textmode = 1;
1652 		minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP16;
1653 	} else {
1654 		minfo->devflags.vgastep = 8;
1655 		minfo->devflags.textmode = 1;
1656 		minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP8;
1657 	}
1658 	minfo->devflags.support32MB = (b->flags & DEVF_SUPPORT32MB) != 0;
1659 	minfo->devflags.precise_width = !(b->flags & DEVF_ANY_VXRES);
1660 	minfo->devflags.crtc2 = (b->flags & DEVF_CRTC2) != 0;
1661 	minfo->devflags.maven_capable = (b->flags & DEVF_MAVEN_CAPABLE) != 0;
1662 	minfo->devflags.dualhead = (b->flags & DEVF_DUALHEAD) != 0;
1663 	minfo->devflags.dfp_type = dfp_type;
1664 	minfo->devflags.g450dac = (b->flags & DEVF_G450DAC) != 0;
1665 	minfo->devflags.textstep = minfo->devflags.vgastep * minfo->devflags.textmode;
1666 	minfo->devflags.textvram = 65536 / minfo->devflags.textmode;
1667 	setDefaultOutputs(minfo);
1668 	if (b->flags & DEVF_PANELLINK_CAPABLE) {
1669 		minfo->outputs[2].data = minfo;
1670 		minfo->outputs[2].output = &panellink_output;
1671 		minfo->outputs[2].src = minfo->outputs[2].default_src;
1672 		minfo->outputs[2].mode = MATROXFB_OUTPUT_MODE_MONITOR;
1673 		minfo->devflags.panellink = 1;
1674 	}
1675 
1676 	if (minfo->capable.cross4MB < 0)
1677 		minfo->capable.cross4MB = b->flags & DEVF_CROSS4MB;
1678 	if (b->flags & DEVF_SWAPS) {
1679 		ctrlptr_phys = pci_resource_start(minfo->pcidev, 1);
1680 		video_base_phys = pci_resource_start(minfo->pcidev, 0);
1681 		minfo->devflags.fbResource = PCI_BASE_ADDRESS_0;
1682 	} else {
1683 		ctrlptr_phys = pci_resource_start(minfo->pcidev, 0);
1684 		video_base_phys = pci_resource_start(minfo->pcidev, 1);
1685 		minfo->devflags.fbResource = PCI_BASE_ADDRESS_1;
1686 	}
1687 	err = -EINVAL;
1688 	if (!ctrlptr_phys) {
1689 		printk(KERN_ERR "matroxfb: control registers are not available, matroxfb disabled\n");
1690 		goto fail;
1691 	}
1692 	if (!video_base_phys) {
1693 		printk(KERN_ERR "matroxfb: video RAM is not available in PCI address space, matroxfb disabled\n");
1694 		goto fail;
1695 	}
1696 	memsize = b->base->maxvram;
1697 	if (!request_mem_region(ctrlptr_phys, 16384, "matroxfb MMIO")) {
1698 		goto fail;
1699 	}
1700 	if (!request_mem_region(video_base_phys, memsize, "matroxfb FB")) {
1701 		goto failCtrlMR;
1702 	}
1703 	minfo->video.len_maximum = memsize;
1704 	/* convert mem (autodetect k, M) */
1705 	if (mem < 1024) mem *= 1024;
1706 	if (mem < 0x00100000) mem *= 1024;
1707 
1708 	if (mem && (mem < memsize))
1709 		memsize = mem;
1710 	err = -ENOMEM;
1711 
1712 	minfo->mmio.vbase.vaddr = ioremap_nocache(ctrlptr_phys, 16384);
1713 	if (!minfo->mmio.vbase.vaddr) {
1714 		printk(KERN_ERR "matroxfb: cannot ioremap(%lX, 16384), matroxfb disabled\n", ctrlptr_phys);
1715 		goto failVideoMR;
1716 	}
1717 	minfo->mmio.base = ctrlptr_phys;
1718 	minfo->mmio.len = 16384;
1719 	minfo->video.base = video_base_phys;
1720 	minfo->video.vbase.vaddr = ioremap_wc(video_base_phys, memsize);
1721 	if (!minfo->video.vbase.vaddr) {
1722 		printk(KERN_ERR "matroxfb: cannot ioremap(%lX, %d), matroxfb disabled\n",
1723 			video_base_phys, memsize);
1724 		goto failCtrlIO;
1725 	}
1726 	{
1727 		u_int32_t cmd;
1728 		u_int32_t mga_option;
1729 
1730 		pci_read_config_dword(minfo->pcidev, PCI_OPTION_REG, &mga_option);
1731 		pci_read_config_dword(minfo->pcidev, PCI_COMMAND, &cmd);
1732 		mga_option &= 0x7FFFFFFF; /* clear BIG_ENDIAN */
1733 		mga_option |= MX_OPTION_BSWAP;
1734 		/* disable palette snooping */
1735 		cmd &= ~PCI_COMMAND_VGA_PALETTE;
1736 		if (pci_dev_present(intel_82437)) {
1737 			if (!(mga_option & 0x20000000) && !minfo->devflags.nopciretry) {
1738 				printk(KERN_WARNING "matroxfb: Disabling PCI retries due to i82437 present\n");
1739 			}
1740 			mga_option |= 0x20000000;
1741 			minfo->devflags.nopciretry = 1;
1742 		}
1743 		pci_write_config_dword(minfo->pcidev, PCI_COMMAND, cmd);
1744 		pci_write_config_dword(minfo->pcidev, PCI_OPTION_REG, mga_option);
1745 		minfo->hw.MXoptionReg = mga_option;
1746 
1747 		/* select non-DMA memory for PCI_MGA_DATA, otherwise dump of PCI cfg space can lock PCI bus */
1748 		/* maybe preinit() candidate, but it is same... for all devices... at this time... */
1749 		pci_write_config_dword(minfo->pcidev, PCI_MGA_INDEX, 0x00003C00);
1750 	}
1751 
1752 	err = -ENXIO;
1753 	matroxfb_read_pins(minfo);
1754 	if (minfo->hw_switch->preinit(minfo)) {
1755 		goto failVideoIO;
1756 	}
1757 
1758 	err = -ENOMEM;
1759 	if (!matroxfb_getmemory(minfo, memsize, &minfo->video.len) || !minfo->video.len) {
1760 		printk(KERN_ERR "matroxfb: cannot determine memory size\n");
1761 		goto failVideoIO;
1762 	}
1763 	minfo->devflags.ydstorg = 0;
1764 
1765 	minfo->video.base = video_base_phys;
1766 	minfo->video.len_usable = minfo->video.len;
1767 	if (minfo->video.len_usable > b->base->maxdisplayable)
1768 		minfo->video.len_usable = b->base->maxdisplayable;
1769 	if (mtrr)
1770 		minfo->wc_cookie = arch_phys_wc_add(video_base_phys,
1771 						    minfo->video.len);
1772 
1773 	if (!minfo->devflags.novga)
1774 		request_region(0x3C0, 32, "matrox");
1775 	matroxfb_g450_connect(minfo);
1776 	minfo->hw_switch->reset(minfo);
1777 
1778 	minfo->fbcon.monspecs.hfmin = 0;
1779 	minfo->fbcon.monspecs.hfmax = fh;
1780 	minfo->fbcon.monspecs.vfmin = 0;
1781 	minfo->fbcon.monspecs.vfmax = fv;
1782 	minfo->fbcon.monspecs.dpms = 0;	/* TBD */
1783 
1784 	/* static settings */
1785 	vesafb_defined.red = colors[depth-1].red;
1786 	vesafb_defined.green = colors[depth-1].green;
1787 	vesafb_defined.blue = colors[depth-1].blue;
1788 	vesafb_defined.bits_per_pixel = colors[depth-1].bits_per_pixel;
1789 	vesafb_defined.grayscale = grayscale;
1790 	vesafb_defined.vmode = 0;
1791 	if (noaccel)
1792 		vesafb_defined.accel_flags &= ~FB_ACCELF_TEXT;
1793 
1794 	minfo->fbops = matroxfb_ops;
1795 	minfo->fbcon.fbops = &minfo->fbops;
1796 	minfo->fbcon.pseudo_palette = minfo->cmap;
1797 	minfo->fbcon.flags = FBINFO_PARTIAL_PAN_OK | 	 /* Prefer panning for scroll under MC viewer/edit */
1798 				      FBINFO_HWACCEL_COPYAREA |  /* We have hw-assisted bmove */
1799 				      FBINFO_HWACCEL_FILLRECT |  /* And fillrect */
1800 				      FBINFO_HWACCEL_IMAGEBLIT | /* And imageblit */
1801 				      FBINFO_HWACCEL_XPAN |      /* And we support both horizontal */
1802 				      FBINFO_HWACCEL_YPAN |      /* And vertical panning */
1803 				      FBINFO_READS_FAST;
1804 	minfo->video.len_usable &= PAGE_MASK;
1805 	fb_alloc_cmap(&minfo->fbcon.cmap, 256, 1);
1806 
1807 #ifndef MODULE
1808 	/* mode database is marked __init!!! */
1809 	if (!hotplug) {
1810 		fb_find_mode(&vesafb_defined, &minfo->fbcon, videomode[0] ? videomode : NULL,
1811 			NULL, 0, &defaultmode, vesafb_defined.bits_per_pixel);
1812 	}
1813 #endif /* !MODULE */
1814 
1815 	/* mode modifiers */
1816 	if (hslen)
1817 		vesafb_defined.hsync_len = hslen;
1818 	if (vslen)
1819 		vesafb_defined.vsync_len = vslen;
1820 	if (left != ~0)
1821 		vesafb_defined.left_margin = left;
1822 	if (right != ~0)
1823 		vesafb_defined.right_margin = right;
1824 	if (upper != ~0)
1825 		vesafb_defined.upper_margin = upper;
1826 	if (lower != ~0)
1827 		vesafb_defined.lower_margin = lower;
1828 	if (xres)
1829 		vesafb_defined.xres = xres;
1830 	if (yres)
1831 		vesafb_defined.yres = yres;
1832 	if (sync != -1)
1833 		vesafb_defined.sync = sync;
1834 	else if (vesafb_defined.sync == ~0) {
1835 		vesafb_defined.sync = 0;
1836 		if (yres < 400)
1837 			vesafb_defined.sync |= FB_SYNC_HOR_HIGH_ACT;
1838 		else if (yres < 480)
1839 			vesafb_defined.sync |= FB_SYNC_VERT_HIGH_ACT;
1840 	}
1841 
1842 	/* fv, fh, maxclk limits was specified */
1843 	{
1844 		unsigned int tmp;
1845 
1846 		if (fv) {
1847 			tmp = fv * (vesafb_defined.upper_margin + vesafb_defined.yres
1848 				  + vesafb_defined.lower_margin + vesafb_defined.vsync_len);
1849 			if ((tmp < fh) || (fh == 0)) fh = tmp;
1850 		}
1851 		if (fh) {
1852 			tmp = fh * (vesafb_defined.left_margin + vesafb_defined.xres
1853 				  + vesafb_defined.right_margin + vesafb_defined.hsync_len);
1854 			if ((tmp < maxclk) || (maxclk == 0)) maxclk = tmp;
1855 		}
1856 		tmp = (maxclk + 499) / 500;
1857 		if (tmp) {
1858 			tmp = (2000000000 + tmp) / tmp;
1859 			if (tmp > pixclock) pixclock = tmp;
1860 		}
1861 	}
1862 	if (pixclock) {
1863 		if (pixclock < 2000)		/* > 500MHz */
1864 			pixclock = 4000;	/* 250MHz */
1865 		if (pixclock > 1000000)
1866 			pixclock = 1000000;	/* 1MHz */
1867 		vesafb_defined.pixclock = pixclock;
1868 	}
1869 
1870 	/* FIXME: Where to move this?! */
1871 #if defined(CONFIG_PPC_PMAC)
1872 #ifndef MODULE
1873 	if (machine_is(powermac)) {
1874 		struct fb_var_screeninfo var;
1875 		if (default_vmode <= 0 || default_vmode > VMODE_MAX)
1876 			default_vmode = VMODE_640_480_60;
1877 #ifdef CONFIG_NVRAM
1878 		if (default_cmode == CMODE_NVRAM)
1879 			default_cmode = nvram_read_byte(NV_CMODE);
1880 #endif
1881 		if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
1882 			default_cmode = CMODE_8;
1883 		if (!mac_vmode_to_var(default_vmode, default_cmode, &var)) {
1884 			var.accel_flags = vesafb_defined.accel_flags;
1885 			var.xoffset = var.yoffset = 0;
1886 			/* Note: mac_vmode_to_var() does not set all parameters */
1887 			vesafb_defined = var;
1888 		}
1889 	}
1890 #endif /* !MODULE */
1891 #endif /* CONFIG_PPC_PMAC */
1892 	vesafb_defined.xres_virtual = vesafb_defined.xres;
1893 	if (nopan) {
1894 		vesafb_defined.yres_virtual = vesafb_defined.yres;
1895 	} else {
1896 		vesafb_defined.yres_virtual = 65536; /* large enough to be INF, but small enough
1897 							to yres_virtual * xres_virtual < 2^32 */
1898 	}
1899 	matroxfb_init_fix(minfo);
1900 	minfo->fbcon.screen_base = vaddr_va(minfo->video.vbase);
1901 	/* Normalize values (namely yres_virtual) */
1902 	matroxfb_check_var(&vesafb_defined, &minfo->fbcon);
1903 	/* And put it into "current" var. Do NOT program hardware yet, or we'll not take over
1904 	 * vgacon correctly. fbcon_startup will call fb_set_par for us, WITHOUT check_var,
1905 	 * and unfortunately it will do it BEFORE vgacon contents is saved, so it won't work
1906 	 * anyway. But we at least tried... */
1907 	minfo->fbcon.var = vesafb_defined;
1908 	err = -EINVAL;
1909 
1910 	printk(KERN_INFO "matroxfb: %dx%dx%dbpp (virtual: %dx%d)\n",
1911 		vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel,
1912 		vesafb_defined.xres_virtual, vesafb_defined.yres_virtual);
1913 	printk(KERN_INFO "matroxfb: framebuffer at 0x%lX, mapped to 0x%p, size %d\n",
1914 		minfo->video.base, vaddr_va(minfo->video.vbase), minfo->video.len);
1915 
1916 /* We do not have to set currcon to 0... register_framebuffer do it for us on first console
1917  * and we do not want currcon == 0 for subsequent framebuffers */
1918 
1919 	minfo->fbcon.device = &minfo->pcidev->dev;
1920 	if (register_framebuffer(&minfo->fbcon) < 0) {
1921 		goto failVideoIO;
1922 	}
1923 	fb_info(&minfo->fbcon, "%s frame buffer device\n", minfo->fbcon.fix.id);
1924 
1925 	/* there is no console on this fb... but we have to initialize hardware
1926 	 * until someone tells me what is proper thing to do */
1927 	if (!minfo->initialized) {
1928 		fb_info(&minfo->fbcon, "initializing hardware\n");
1929 		/* We have to use FB_ACTIVATE_FORCE, as we had to put vesafb_defined to the fbcon.var
1930 		 * already before, so register_framebuffer works correctly. */
1931 		vesafb_defined.activate |= FB_ACTIVATE_FORCE;
1932 		fb_set_var(&minfo->fbcon, &vesafb_defined);
1933 	}
1934 
1935 	return 0;
1936 failVideoIO:;
1937 	matroxfb_g450_shutdown(minfo);
1938 	iounmap(minfo->video.vbase.vaddr);
1939 failCtrlIO:;
1940 	iounmap(minfo->mmio.vbase.vaddr);
1941 failVideoMR:;
1942 	release_mem_region(video_base_phys, minfo->video.len_maximum);
1943 failCtrlMR:;
1944 	release_mem_region(ctrlptr_phys, 16384);
1945 fail:;
1946 	return err;
1947 }
1948 
1949 static LIST_HEAD(matroxfb_list);
1950 static LIST_HEAD(matroxfb_driver_list);
1951 
1952 #define matroxfb_l(x) list_entry(x, struct matrox_fb_info, next_fb)
1953 #define matroxfb_driver_l(x) list_entry(x, struct matroxfb_driver, node)
1954 int matroxfb_register_driver(struct matroxfb_driver* drv) {
1955 	struct matrox_fb_info* minfo;
1956 
1957 	list_add(&drv->node, &matroxfb_driver_list);
1958 	for (minfo = matroxfb_l(matroxfb_list.next);
1959 	     minfo != matroxfb_l(&matroxfb_list);
1960 	     minfo = matroxfb_l(minfo->next_fb.next)) {
1961 		void* p;
1962 
1963 		if (minfo->drivers_count == MATROXFB_MAX_FB_DRIVERS)
1964 			continue;
1965 		p = drv->probe(minfo);
1966 		if (p) {
1967 			minfo->drivers_data[minfo->drivers_count] = p;
1968 			minfo->drivers[minfo->drivers_count++] = drv;
1969 		}
1970 	}
1971 	return 0;
1972 }
1973 
1974 void matroxfb_unregister_driver(struct matroxfb_driver* drv) {
1975 	struct matrox_fb_info* minfo;
1976 
1977 	list_del(&drv->node);
1978 	for (minfo = matroxfb_l(matroxfb_list.next);
1979 	     minfo != matroxfb_l(&matroxfb_list);
1980 	     minfo = matroxfb_l(minfo->next_fb.next)) {
1981 		int i;
1982 
1983 		for (i = 0; i < minfo->drivers_count; ) {
1984 			if (minfo->drivers[i] == drv) {
1985 				if (drv && drv->remove)
1986 					drv->remove(minfo, minfo->drivers_data[i]);
1987 				minfo->drivers[i] = minfo->drivers[--minfo->drivers_count];
1988 				minfo->drivers_data[i] = minfo->drivers_data[minfo->drivers_count];
1989 			} else
1990 				i++;
1991 		}
1992 	}
1993 }
1994 
1995 static void matroxfb_register_device(struct matrox_fb_info* minfo) {
1996 	struct matroxfb_driver* drv;
1997 	int i = 0;
1998 	list_add(&minfo->next_fb, &matroxfb_list);
1999 	for (drv = matroxfb_driver_l(matroxfb_driver_list.next);
2000 	     drv != matroxfb_driver_l(&matroxfb_driver_list);
2001 	     drv = matroxfb_driver_l(drv->node.next)) {
2002 		if (drv->probe) {
2003 			void *p = drv->probe(minfo);
2004 			if (p) {
2005 				minfo->drivers_data[i] = p;
2006 				minfo->drivers[i++] = drv;
2007 				if (i == MATROXFB_MAX_FB_DRIVERS)
2008 					break;
2009 			}
2010 		}
2011 	}
2012 	minfo->drivers_count = i;
2013 }
2014 
2015 static void matroxfb_unregister_device(struct matrox_fb_info* minfo) {
2016 	int i;
2017 
2018 	list_del(&minfo->next_fb);
2019 	for (i = 0; i < minfo->drivers_count; i++) {
2020 		struct matroxfb_driver* drv = minfo->drivers[i];
2021 
2022 		if (drv && drv->remove)
2023 			drv->remove(minfo, minfo->drivers_data[i]);
2024 	}
2025 }
2026 
2027 static int matroxfb_probe(struct pci_dev* pdev, const struct pci_device_id* dummy) {
2028 	struct board* b;
2029 	u_int16_t svid;
2030 	u_int16_t sid;
2031 	struct matrox_fb_info* minfo;
2032 	int err;
2033 	u_int32_t cmd;
2034 	DBG(__func__)
2035 
2036 	svid = pdev->subsystem_vendor;
2037 	sid = pdev->subsystem_device;
2038 	for (b = dev_list; b->vendor; b++) {
2039 		if ((b->vendor != pdev->vendor) || (b->device != pdev->device) || (b->rev < pdev->revision)) continue;
2040 		if (b->svid)
2041 			if ((b->svid != svid) || (b->sid != sid)) continue;
2042 		break;
2043 	}
2044 	/* not match... */
2045 	if (!b->vendor)
2046 		return -ENODEV;
2047 	if (dev > 0) {
2048 		/* not requested one... */
2049 		dev--;
2050 		return -ENODEV;
2051 	}
2052 	pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
2053 	if (pci_enable_device(pdev)) {
2054 		return -1;
2055 	}
2056 
2057 	minfo = kzalloc(sizeof(*minfo), GFP_KERNEL);
2058 	if (!minfo)
2059 		return -ENOMEM;
2060 
2061 	minfo->pcidev = pdev;
2062 	minfo->dead = 0;
2063 	minfo->usecount = 0;
2064 	minfo->userusecount = 0;
2065 
2066 	pci_set_drvdata(pdev, minfo);
2067 	/* DEVFLAGS */
2068 	minfo->devflags.memtype = memtype;
2069 	if (memtype != -1)
2070 		noinit = 0;
2071 	if (cmd & PCI_COMMAND_MEMORY) {
2072 		minfo->devflags.novga = novga;
2073 		minfo->devflags.nobios = nobios;
2074 		minfo->devflags.noinit = noinit;
2075 		/* subsequent heads always needs initialization and must not enable BIOS */
2076 		novga = 1;
2077 		nobios = 1;
2078 		noinit = 0;
2079 	} else {
2080 		minfo->devflags.novga = 1;
2081 		minfo->devflags.nobios = 1;
2082 		minfo->devflags.noinit = 0;
2083 	}
2084 
2085 	minfo->devflags.nopciretry = no_pci_retry;
2086 	minfo->devflags.mga_24bpp_fix = inv24;
2087 	minfo->devflags.precise_width = option_precise_width;
2088 	minfo->devflags.sgram = sgram;
2089 	minfo->capable.cross4MB = cross4MB;
2090 
2091 	spin_lock_init(&minfo->lock.DAC);
2092 	spin_lock_init(&minfo->lock.accel);
2093 	init_rwsem(&minfo->crtc2.lock);
2094 	init_rwsem(&minfo->altout.lock);
2095 	mutex_init(&minfo->fbcon.mm_lock);
2096 	minfo->irq_flags = 0;
2097 	init_waitqueue_head(&minfo->crtc1.vsync.wait);
2098 	init_waitqueue_head(&minfo->crtc2.vsync.wait);
2099 	minfo->crtc1.panpos = -1;
2100 
2101 	err = initMatrox2(minfo, b);
2102 	if (!err) {
2103 		matroxfb_register_device(minfo);
2104 		return 0;
2105 	}
2106 	kfree(minfo);
2107 	return -1;
2108 }
2109 
2110 static void pci_remove_matrox(struct pci_dev* pdev) {
2111 	struct matrox_fb_info* minfo;
2112 
2113 	minfo = pci_get_drvdata(pdev);
2114 	matroxfb_remove(minfo, 1);
2115 }
2116 
2117 static const struct pci_device_id matroxfb_devices[] = {
2118 #ifdef CONFIG_FB_MATROX_MILLENIUM
2119 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL,
2120 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2121 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL_2,
2122 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2123 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL_2_AGP,
2124 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2125 #endif
2126 #ifdef CONFIG_FB_MATROX_MYSTIQUE
2127 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS,
2128 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2129 #endif
2130 #ifdef CONFIG_FB_MATROX_G
2131 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_MM,
2132 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2133 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_AGP,
2134 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2135 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_PCI,
2136 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2137 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,
2138 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2139 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G400,
2140 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2141 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G550,
2142 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2143 #endif
2144 	{0,			0,
2145 		0,		0,		0, 0, 0}
2146 };
2147 
2148 MODULE_DEVICE_TABLE(pci, matroxfb_devices);
2149 
2150 
2151 static struct pci_driver matroxfb_driver = {
2152 	.name =		"matroxfb",
2153 	.id_table =	matroxfb_devices,
2154 	.probe =	matroxfb_probe,
2155 	.remove =	pci_remove_matrox,
2156 };
2157 
2158 /* **************************** init-time only **************************** */
2159 
2160 #define RSResolution(X)	((X) & 0x0F)
2161 #define RS640x400	1
2162 #define RS640x480	2
2163 #define RS800x600	3
2164 #define RS1024x768	4
2165 #define RS1280x1024	5
2166 #define RS1600x1200	6
2167 #define RS768x576	7
2168 #define RS960x720	8
2169 #define RS1152x864	9
2170 #define RS1408x1056	10
2171 #define RS640x350	11
2172 #define RS1056x344	12	/* 132 x 43 text */
2173 #define RS1056x400	13	/* 132 x 50 text */
2174 #define RS1056x480	14	/* 132 x 60 text */
2175 #define RSNoxNo		15
2176 /* 10-FF */
2177 static struct { int xres, yres, left, right, upper, lower, hslen, vslen, vfreq; } timmings[] __initdata = {
2178 	{  640,  400,  48, 16, 39,  8,  96, 2, 70 },
2179 	{  640,  480,  48, 16, 33, 10,  96, 2, 60 },
2180 	{  800,  600, 144, 24, 28,  8, 112, 6, 60 },
2181 	{ 1024,  768, 160, 32, 30,  4, 128, 4, 60 },
2182 	{ 1280, 1024, 224, 32, 32,  4, 136, 4, 60 },
2183 	{ 1600, 1200, 272, 48, 32,  5, 152, 5, 60 },
2184 	{  768,  576, 144, 16, 28,  6, 112, 4, 60 },
2185 	{  960,  720, 144, 24, 28,  8, 112, 4, 60 },
2186 	{ 1152,  864, 192, 32, 30,  4, 128, 4, 60 },
2187 	{ 1408, 1056, 256, 40, 32,  5, 144, 5, 60 },
2188 	{  640,  350,  48, 16, 39,  8,  96, 2, 70 },
2189 	{ 1056,  344,  96, 24, 59, 44, 160, 2, 70 },
2190 	{ 1056,  400,  96, 24, 39,  8, 160, 2, 70 },
2191 	{ 1056,  480,  96, 24, 36, 12, 160, 3, 60 },
2192 	{    0,    0,  ~0, ~0, ~0, ~0,   0, 0,  0 }
2193 };
2194 
2195 #define RSCreate(X,Y)	((X) | ((Y) << 8))
2196 static struct { unsigned int vesa; unsigned int info; } *RSptr, vesamap[] __initdata = {
2197 /* default must be first */
2198 	{    ~0, RSCreate(RSNoxNo,     RS8bpp ) },
2199 	{ 0x101, RSCreate(RS640x480,   RS8bpp ) },
2200 	{ 0x100, RSCreate(RS640x400,   RS8bpp ) },
2201 	{ 0x180, RSCreate(RS768x576,   RS8bpp ) },
2202 	{ 0x103, RSCreate(RS800x600,   RS8bpp ) },
2203 	{ 0x188, RSCreate(RS960x720,   RS8bpp ) },
2204 	{ 0x105, RSCreate(RS1024x768,  RS8bpp ) },
2205 	{ 0x190, RSCreate(RS1152x864,  RS8bpp ) },
2206 	{ 0x107, RSCreate(RS1280x1024, RS8bpp ) },
2207 	{ 0x198, RSCreate(RS1408x1056, RS8bpp ) },
2208 	{ 0x11C, RSCreate(RS1600x1200, RS8bpp ) },
2209 	{ 0x110, RSCreate(RS640x480,   RS15bpp) },
2210 	{ 0x181, RSCreate(RS768x576,   RS15bpp) },
2211 	{ 0x113, RSCreate(RS800x600,   RS15bpp) },
2212 	{ 0x189, RSCreate(RS960x720,   RS15bpp) },
2213 	{ 0x116, RSCreate(RS1024x768,  RS15bpp) },
2214 	{ 0x191, RSCreate(RS1152x864,  RS15bpp) },
2215 	{ 0x119, RSCreate(RS1280x1024, RS15bpp) },
2216 	{ 0x199, RSCreate(RS1408x1056, RS15bpp) },
2217 	{ 0x11D, RSCreate(RS1600x1200, RS15bpp) },
2218 	{ 0x111, RSCreate(RS640x480,   RS16bpp) },
2219 	{ 0x182, RSCreate(RS768x576,   RS16bpp) },
2220 	{ 0x114, RSCreate(RS800x600,   RS16bpp) },
2221 	{ 0x18A, RSCreate(RS960x720,   RS16bpp) },
2222 	{ 0x117, RSCreate(RS1024x768,  RS16bpp) },
2223 	{ 0x192, RSCreate(RS1152x864,  RS16bpp) },
2224 	{ 0x11A, RSCreate(RS1280x1024, RS16bpp) },
2225 	{ 0x19A, RSCreate(RS1408x1056, RS16bpp) },
2226 	{ 0x11E, RSCreate(RS1600x1200, RS16bpp) },
2227 	{ 0x1B2, RSCreate(RS640x480,   RS24bpp) },
2228 	{ 0x184, RSCreate(RS768x576,   RS24bpp) },
2229 	{ 0x1B5, RSCreate(RS800x600,   RS24bpp) },
2230 	{ 0x18C, RSCreate(RS960x720,   RS24bpp) },
2231 	{ 0x1B8, RSCreate(RS1024x768,  RS24bpp) },
2232 	{ 0x194, RSCreate(RS1152x864,  RS24bpp) },
2233 	{ 0x1BB, RSCreate(RS1280x1024, RS24bpp) },
2234 	{ 0x19C, RSCreate(RS1408x1056, RS24bpp) },
2235 	{ 0x1BF, RSCreate(RS1600x1200, RS24bpp) },
2236 	{ 0x112, RSCreate(RS640x480,   RS32bpp) },
2237 	{ 0x183, RSCreate(RS768x576,   RS32bpp) },
2238 	{ 0x115, RSCreate(RS800x600,   RS32bpp) },
2239 	{ 0x18B, RSCreate(RS960x720,   RS32bpp) },
2240 	{ 0x118, RSCreate(RS1024x768,  RS32bpp) },
2241 	{ 0x193, RSCreate(RS1152x864,  RS32bpp) },
2242 	{ 0x11B, RSCreate(RS1280x1024, RS32bpp) },
2243 	{ 0x19B, RSCreate(RS1408x1056, RS32bpp) },
2244 	{ 0x11F, RSCreate(RS1600x1200, RS32bpp) },
2245 	{ 0x010, RSCreate(RS640x350,   RS4bpp ) },
2246 	{ 0x012, RSCreate(RS640x480,   RS4bpp ) },
2247 	{ 0x102, RSCreate(RS800x600,   RS4bpp ) },
2248 	{ 0x104, RSCreate(RS1024x768,  RS4bpp ) },
2249 	{ 0x106, RSCreate(RS1280x1024, RS4bpp ) },
2250 	{     0, 0				}};
2251 
2252 static void __init matroxfb_init_params(void) {
2253 	/* fh from kHz to Hz */
2254 	if (fh < 1000)
2255 		fh *= 1000;	/* 1kHz minimum */
2256 	/* maxclk */
2257 	if (maxclk < 1000) maxclk *= 1000;	/* kHz -> Hz, MHz -> kHz */
2258 	if (maxclk < 1000000) maxclk *= 1000;	/* kHz -> Hz, 1MHz minimum */
2259 	/* fix VESA number */
2260 	if (vesa != ~0)
2261 		vesa &= 0x1DFF;		/* mask out clearscreen, acceleration and so on */
2262 
2263 	/* static settings */
2264 	for (RSptr = vesamap; RSptr->vesa; RSptr++) {
2265 		if (RSptr->vesa == vesa) break;
2266 	}
2267 	if (!RSptr->vesa) {
2268 		printk(KERN_ERR "Invalid vesa mode 0x%04X\n", vesa);
2269 		RSptr = vesamap;
2270 	}
2271 	{
2272 		int res = RSResolution(RSptr->info)-1;
2273 		if (left == ~0)
2274 			left = timmings[res].left;
2275 		if (!xres)
2276 			xres = timmings[res].xres;
2277 		if (right == ~0)
2278 			right = timmings[res].right;
2279 		if (!hslen)
2280 			hslen = timmings[res].hslen;
2281 		if (upper == ~0)
2282 			upper = timmings[res].upper;
2283 		if (!yres)
2284 			yres = timmings[res].yres;
2285 		if (lower == ~0)
2286 			lower = timmings[res].lower;
2287 		if (!vslen)
2288 			vslen = timmings[res].vslen;
2289 		if (!(fv||fh||maxclk||pixclock))
2290 			fv = timmings[res].vfreq;
2291 		if (depth == -1)
2292 			depth = RSDepth(RSptr->info);
2293 	}
2294 }
2295 
2296 static int __init matrox_init(void) {
2297 	int err;
2298 
2299 	matroxfb_init_params();
2300 	err = pci_register_driver(&matroxfb_driver);
2301 	dev = -1;	/* accept all new devices... */
2302 	return err;
2303 }
2304 
2305 /* **************************** exit-time only **************************** */
2306 
2307 static void __exit matrox_done(void) {
2308 	pci_unregister_driver(&matroxfb_driver);
2309 }
2310 
2311 #ifndef MODULE
2312 
2313 /* ************************* init in-kernel code ************************** */
2314 
2315 static int __init matroxfb_setup(char *options) {
2316 	char *this_opt;
2317 
2318 	DBG(__func__)
2319 
2320 	if (!options || !*options)
2321 		return 0;
2322 
2323 	while ((this_opt = strsep(&options, ",")) != NULL) {
2324 		if (!*this_opt) continue;
2325 
2326 		dprintk("matroxfb_setup: option %s\n", this_opt);
2327 
2328 		if (!strncmp(this_opt, "dev:", 4))
2329 			dev = simple_strtoul(this_opt+4, NULL, 0);
2330 		else if (!strncmp(this_opt, "depth:", 6)) {
2331 			switch (simple_strtoul(this_opt+6, NULL, 0)) {
2332 				case 0: depth = RSText; break;
2333 				case 4: depth = RS4bpp; break;
2334 				case 8: depth = RS8bpp; break;
2335 				case 15:depth = RS15bpp; break;
2336 				case 16:depth = RS16bpp; break;
2337 				case 24:depth = RS24bpp; break;
2338 				case 32:depth = RS32bpp; break;
2339 				default:
2340 					printk(KERN_ERR "matroxfb: unsupported color depth\n");
2341 			}
2342 		} else if (!strncmp(this_opt, "xres:", 5))
2343 			xres = simple_strtoul(this_opt+5, NULL, 0);
2344 		else if (!strncmp(this_opt, "yres:", 5))
2345 			yres = simple_strtoul(this_opt+5, NULL, 0);
2346 		else if (!strncmp(this_opt, "vslen:", 6))
2347 			vslen = simple_strtoul(this_opt+6, NULL, 0);
2348 		else if (!strncmp(this_opt, "hslen:", 6))
2349 			hslen = simple_strtoul(this_opt+6, NULL, 0);
2350 		else if (!strncmp(this_opt, "left:", 5))
2351 			left = simple_strtoul(this_opt+5, NULL, 0);
2352 		else if (!strncmp(this_opt, "right:", 6))
2353 			right = simple_strtoul(this_opt+6, NULL, 0);
2354 		else if (!strncmp(this_opt, "upper:", 6))
2355 			upper = simple_strtoul(this_opt+6, NULL, 0);
2356 		else if (!strncmp(this_opt, "lower:", 6))
2357 			lower = simple_strtoul(this_opt+6, NULL, 0);
2358 		else if (!strncmp(this_opt, "pixclock:", 9))
2359 			pixclock = simple_strtoul(this_opt+9, NULL, 0);
2360 		else if (!strncmp(this_opt, "sync:", 5))
2361 			sync = simple_strtoul(this_opt+5, NULL, 0);
2362 		else if (!strncmp(this_opt, "vesa:", 5))
2363 			vesa = simple_strtoul(this_opt+5, NULL, 0);
2364 		else if (!strncmp(this_opt, "maxclk:", 7))
2365 			maxclk = simple_strtoul(this_opt+7, NULL, 0);
2366 		else if (!strncmp(this_opt, "fh:", 3))
2367 			fh = simple_strtoul(this_opt+3, NULL, 0);
2368 		else if (!strncmp(this_opt, "fv:", 3))
2369 			fv = simple_strtoul(this_opt+3, NULL, 0);
2370 		else if (!strncmp(this_opt, "mem:", 4))
2371 			mem = simple_strtoul(this_opt+4, NULL, 0);
2372 		else if (!strncmp(this_opt, "mode:", 5))
2373 			strlcpy(videomode, this_opt+5, sizeof(videomode));
2374 		else if (!strncmp(this_opt, "outputs:", 8))
2375 			strlcpy(outputs, this_opt+8, sizeof(outputs));
2376 		else if (!strncmp(this_opt, "dfp:", 4)) {
2377 			dfp_type = simple_strtoul(this_opt+4, NULL, 0);
2378 			dfp = 1;
2379 		}
2380 #ifdef CONFIG_PPC_PMAC
2381 		else if (!strncmp(this_opt, "vmode:", 6)) {
2382 			unsigned int vmode = simple_strtoul(this_opt+6, NULL, 0);
2383 			if (vmode > 0 && vmode <= VMODE_MAX)
2384 				default_vmode = vmode;
2385 		} else if (!strncmp(this_opt, "cmode:", 6)) {
2386 			unsigned int cmode = simple_strtoul(this_opt+6, NULL, 0);
2387 			switch (cmode) {
2388 				case 0:
2389 				case 8:
2390 					default_cmode = CMODE_8;
2391 					break;
2392 				case 15:
2393 				case 16:
2394 					default_cmode = CMODE_16;
2395 					break;
2396 				case 24:
2397 				case 32:
2398 					default_cmode = CMODE_32;
2399 					break;
2400 			}
2401 		}
2402 #endif
2403 		else if (!strcmp(this_opt, "disabled"))	/* nodisabled does not exist */
2404 			disabled = 1;
2405 		else if (!strcmp(this_opt, "enabled"))	/* noenabled does not exist */
2406 			disabled = 0;
2407 		else if (!strcmp(this_opt, "sgram"))	/* nosgram == sdram */
2408 			sgram = 1;
2409 		else if (!strcmp(this_opt, "sdram"))
2410 			sgram = 0;
2411 		else if (!strncmp(this_opt, "memtype:", 8))
2412 			memtype = simple_strtoul(this_opt+8, NULL, 0);
2413 		else {
2414 			int value = 1;
2415 
2416 			if (!strncmp(this_opt, "no", 2)) {
2417 				value = 0;
2418 				this_opt += 2;
2419 			}
2420 			if (! strcmp(this_opt, "inverse"))
2421 				inverse = value;
2422 			else if (!strcmp(this_opt, "accel"))
2423 				noaccel = !value;
2424 			else if (!strcmp(this_opt, "pan"))
2425 				nopan = !value;
2426 			else if (!strcmp(this_opt, "pciretry"))
2427 				no_pci_retry = !value;
2428 			else if (!strcmp(this_opt, "vga"))
2429 				novga = !value;
2430 			else if (!strcmp(this_opt, "bios"))
2431 				nobios = !value;
2432 			else if (!strcmp(this_opt, "init"))
2433 				noinit = !value;
2434 			else if (!strcmp(this_opt, "mtrr"))
2435 				mtrr = value;
2436 			else if (!strcmp(this_opt, "inv24"))
2437 				inv24 = value;
2438 			else if (!strcmp(this_opt, "cross4MB"))
2439 				cross4MB = value;
2440 			else if (!strcmp(this_opt, "grayscale"))
2441 				grayscale = value;
2442 			else if (!strcmp(this_opt, "dfp"))
2443 				dfp = value;
2444 			else {
2445 				strlcpy(videomode, this_opt, sizeof(videomode));
2446 			}
2447 		}
2448 	}
2449 	return 0;
2450 }
2451 
2452 static int __initdata initialized = 0;
2453 
2454 static int __init matroxfb_init(void)
2455 {
2456 	char *option = NULL;
2457 	int err = 0;
2458 
2459 	DBG(__func__)
2460 
2461 	if (fb_get_options("matroxfb", &option))
2462 		return -ENODEV;
2463 	matroxfb_setup(option);
2464 
2465 	if (disabled)
2466 		return -ENXIO;
2467 	if (!initialized) {
2468 		initialized = 1;
2469 		err = matrox_init();
2470 	}
2471 	hotplug = 1;
2472 	/* never return failure, user can hotplug matrox later... */
2473 	return err;
2474 }
2475 
2476 module_init(matroxfb_init);
2477 
2478 #else
2479 
2480 /* *************************** init module code **************************** */
2481 
2482 MODULE_AUTHOR("(c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>");
2483 MODULE_DESCRIPTION("Accelerated FBDev driver for Matrox Millennium/Mystique/G100/G200/G400/G450/G550");
2484 MODULE_LICENSE("GPL");
2485 
2486 module_param(mem, int, 0);
2487 MODULE_PARM_DESC(mem, "Size of available memory in MB, KB or B (2,4,8,12,16MB, default=autodetect)");
2488 module_param(disabled, int, 0);
2489 MODULE_PARM_DESC(disabled, "Disabled (0 or 1=disabled) (default=0)");
2490 module_param(noaccel, int, 0);
2491 MODULE_PARM_DESC(noaccel, "Do not use accelerating engine (0 or 1=disabled) (default=0)");
2492 module_param(nopan, int, 0);
2493 MODULE_PARM_DESC(nopan, "Disable pan on startup (0 or 1=disabled) (default=0)");
2494 module_param(no_pci_retry, int, 0);
2495 MODULE_PARM_DESC(no_pci_retry, "PCI retries enabled (0 or 1=disabled) (default=0)");
2496 module_param(novga, int, 0);
2497 MODULE_PARM_DESC(novga, "VGA I/O (0x3C0-0x3DF) disabled (0 or 1=disabled) (default=0)");
2498 module_param(nobios, int, 0);
2499 MODULE_PARM_DESC(nobios, "Disables ROM BIOS (0 or 1=disabled) (default=do not change BIOS state)");
2500 module_param(noinit, int, 0);
2501 MODULE_PARM_DESC(noinit, "Disables W/SG/SD-RAM and bus interface initialization (0 or 1=do not initialize) (default=0)");
2502 module_param(memtype, int, 0);
2503 MODULE_PARM_DESC(memtype, "Memory type for G200/G400 (see Documentation/fb/matroxfb.txt for explanation) (default=3 for G200, 0 for G400)");
2504 module_param(mtrr, int, 0);
2505 MODULE_PARM_DESC(mtrr, "This speeds up video memory accesses (0=disabled or 1) (default=1)");
2506 module_param(sgram, int, 0);
2507 MODULE_PARM_DESC(sgram, "Indicates that G100/G200/G400 has SGRAM memory (0=SDRAM, 1=SGRAM) (default=0)");
2508 module_param(inv24, int, 0);
2509 MODULE_PARM_DESC(inv24, "Inverts clock polarity for 24bpp and loop frequency > 100MHz (default=do not invert polarity)");
2510 module_param(inverse, int, 0);
2511 MODULE_PARM_DESC(inverse, "Inverse (0 or 1) (default=0)");
2512 module_param(dev, int, 0);
2513 MODULE_PARM_DESC(dev, "Multihead support, attach to device ID (0..N) (default=all working)");
2514 module_param(vesa, int, 0);
2515 MODULE_PARM_DESC(vesa, "Startup videomode (0x000-0x1FF) (default=0x101)");
2516 module_param(xres, int, 0);
2517 MODULE_PARM_DESC(xres, "Horizontal resolution (px), overrides xres from vesa (default=vesa)");
2518 module_param(yres, int, 0);
2519 MODULE_PARM_DESC(yres, "Vertical resolution (scans), overrides yres from vesa (default=vesa)");
2520 module_param(upper, int, 0);
2521 MODULE_PARM_DESC(upper, "Upper blank space (scans), overrides upper from vesa (default=vesa)");
2522 module_param(lower, int, 0);
2523 MODULE_PARM_DESC(lower, "Lower blank space (scans), overrides lower from vesa (default=vesa)");
2524 module_param(vslen, int, 0);
2525 MODULE_PARM_DESC(vslen, "Vertical sync length (scans), overrides lower from vesa (default=vesa)");
2526 module_param(left, int, 0);
2527 MODULE_PARM_DESC(left, "Left blank space (px), overrides left from vesa (default=vesa)");
2528 module_param(right, int, 0);
2529 MODULE_PARM_DESC(right, "Right blank space (px), overrides right from vesa (default=vesa)");
2530 module_param(hslen, int, 0);
2531 MODULE_PARM_DESC(hslen, "Horizontal sync length (px), overrides hslen from vesa (default=vesa)");
2532 module_param(pixclock, int, 0);
2533 MODULE_PARM_DESC(pixclock, "Pixelclock (ns), overrides pixclock from vesa (default=vesa)");
2534 module_param(sync, int, 0);
2535 MODULE_PARM_DESC(sync, "Sync polarity, overrides sync from vesa (default=vesa)");
2536 module_param(depth, int, 0);
2537 MODULE_PARM_DESC(depth, "Color depth (0=text,8,15,16,24,32) (default=vesa)");
2538 module_param(maxclk, int, 0);
2539 MODULE_PARM_DESC(maxclk, "Startup maximal clock, 0-999MHz, 1000-999999kHz, 1000000-INF Hz");
2540 module_param(fh, int, 0);
2541 MODULE_PARM_DESC(fh, "Startup horizontal frequency, 0-999kHz, 1000-INF Hz");
2542 module_param(fv, int, 0);
2543 MODULE_PARM_DESC(fv, "Startup vertical frequency, 0-INF Hz\n"
2544 "You should specify \"fv:max_monitor_vsync,fh:max_monitor_hsync,maxclk:max_monitor_dotclock\"");
2545 module_param(grayscale, int, 0);
2546 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)");
2547 module_param(cross4MB, int, 0);
2548 MODULE_PARM_DESC(cross4MB, "Specifies that 4MB boundary can be in middle of line. (default=autodetected)");
2549 module_param(dfp, int, 0);
2550 MODULE_PARM_DESC(dfp, "Specifies whether to use digital flat panel interface of G200/G400 (0 or 1) (default=0)");
2551 module_param(dfp_type, int, 0);
2552 MODULE_PARM_DESC(dfp_type, "Specifies DFP interface type (0 to 255) (default=read from hardware)");
2553 module_param_string(outputs, outputs, sizeof(outputs), 0);
2554 MODULE_PARM_DESC(outputs, "Specifies which CRTC is mapped to which output (string of up to three letters, consisting of 0 (disabled), 1 (CRTC1), 2 (CRTC2)) (default=111 for Gx50, 101 for G200/G400 with DFP, and 100 for all other devices)");
2555 #ifdef CONFIG_PPC_PMAC
2556 module_param_named(vmode, default_vmode, int, 0);
2557 MODULE_PARM_DESC(vmode, "Specify the vmode mode number that should be used (640x480 default)");
2558 module_param_named(cmode, default_cmode, int, 0);
2559 MODULE_PARM_DESC(cmode, "Specify the video depth that should be used (8bit default)");
2560 #endif
2561 
2562 int __init init_module(void){
2563 
2564 	DBG(__func__)
2565 
2566 	if (disabled)
2567 		return -ENXIO;
2568 
2569 	if (depth == 0)
2570 		depth = RSText;
2571 	else if (depth == 4)
2572 		depth = RS4bpp;
2573 	else if (depth == 8)
2574 		depth = RS8bpp;
2575 	else if (depth == 15)
2576 		depth = RS15bpp;
2577 	else if (depth == 16)
2578 		depth = RS16bpp;
2579 	else if (depth == 24)
2580 		depth = RS24bpp;
2581 	else if (depth == 32)
2582 		depth = RS32bpp;
2583 	else if (depth != -1) {
2584 		printk(KERN_ERR "matroxfb: depth %d is not supported, using default\n", depth);
2585 		depth = -1;
2586 	}
2587 	matrox_init();
2588 	/* never return failure; user can hotplug matrox later... */
2589 	return 0;
2590 }
2591 #endif	/* MODULE */
2592 
2593 module_exit(matrox_done);
2594 EXPORT_SYMBOL(matroxfb_register_driver);
2595 EXPORT_SYMBOL(matroxfb_unregister_driver);
2596 EXPORT_SYMBOL(matroxfb_wait_for_sync);
2597 EXPORT_SYMBOL(matroxfb_enable_irq);
2598 
2599 /*
2600  * Overrides for Emacs so that we follow Linus's tabbing style.
2601  * ---------------------------------------------------------------------------
2602  * Local variables:
2603  * c-basic-offset: 8
2604  * End:
2605  */
2606 
2607