xref: /linux/drivers/video/fbdev/matrox/matroxfb_base.c (revision 4949009eb8d40a441dcddcd96e101e77d31cf1b2)
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 #ifdef CONFIG_MTRR
374 	if (minfo->mtrr.vram_valid)
375 		mtrr_del(minfo->mtrr.vram, minfo->video.base, minfo->video.len);
376 #endif
377 	mga_iounmap(minfo->mmio.vbase);
378 	mga_iounmap(minfo->video.vbase);
379 	release_mem_region(minfo->video.base, minfo->video.len_maximum);
380 	release_mem_region(minfo->mmio.base, 16384);
381 	kfree(minfo);
382 }
383 
384 	/*
385 	 * Open/Release the frame buffer device
386 	 */
387 
388 static int matroxfb_open(struct fb_info *info, int user)
389 {
390 	struct matrox_fb_info *minfo = info2minfo(info);
391 
392 	DBG_LOOP(__func__)
393 
394 	if (minfo->dead) {
395 		return -ENXIO;
396 	}
397 	minfo->usecount++;
398 	if (user) {
399 		minfo->userusecount++;
400 	}
401 	return(0);
402 }
403 
404 static int matroxfb_release(struct fb_info *info, int user)
405 {
406 	struct matrox_fb_info *minfo = info2minfo(info);
407 
408 	DBG_LOOP(__func__)
409 
410 	if (user) {
411 		if (0 == --minfo->userusecount) {
412 			matroxfb_disable_irq(minfo);
413 		}
414 	}
415 	if (!(--minfo->usecount) && minfo->dead) {
416 		matroxfb_remove(minfo, 0);
417 	}
418 	return(0);
419 }
420 
421 static int matroxfb_pan_display(struct fb_var_screeninfo *var,
422 		struct fb_info* info) {
423 	struct matrox_fb_info *minfo = info2minfo(info);
424 
425 	DBG(__func__)
426 
427 	matrox_pan_var(minfo, var);
428 	return 0;
429 }
430 
431 static int matroxfb_get_final_bppShift(const struct matrox_fb_info *minfo,
432 				       int bpp)
433 {
434 	int bppshft2;
435 
436 	DBG(__func__)
437 
438 	bppshft2 = bpp;
439 	if (!bppshft2) {
440 		return 8;
441 	}
442 	if (isInterleave(minfo))
443 		bppshft2 >>= 1;
444 	if (minfo->devflags.video64bits)
445 		bppshft2 >>= 1;
446 	return bppshft2;
447 }
448 
449 static int matroxfb_test_and_set_rounding(const struct matrox_fb_info *minfo,
450 					  int xres, int bpp)
451 {
452 	int over;
453 	int rounding;
454 
455 	DBG(__func__)
456 
457 	switch (bpp) {
458 		case 0:		return xres;
459 		case 4:		rounding = 128;
460 				break;
461 		case 8:		rounding = 64;	/* doc says 64; 32 is OK for G400 */
462 				break;
463 		case 16:	rounding = 32;
464 				break;
465 		case 24:	rounding = 64;	/* doc says 64; 32 is OK for G400 */
466 				break;
467 		default:	rounding = 16;
468 				/* on G400, 16 really does not work */
469 				if (minfo->devflags.accelerator == FB_ACCEL_MATROX_MGAG400)
470 					rounding = 32;
471 				break;
472 	}
473 	if (isInterleave(minfo)) {
474 		rounding *= 2;
475 	}
476 	over = xres % rounding;
477 	if (over)
478 		xres += rounding-over;
479 	return xres;
480 }
481 
482 static int matroxfb_pitch_adjust(const struct matrox_fb_info *minfo, int xres,
483 				 int bpp)
484 {
485 	const int* width;
486 	int xres_new;
487 
488 	DBG(__func__)
489 
490 	if (!bpp) return xres;
491 
492 	width = minfo->capable.vxres;
493 
494 	if (minfo->devflags.precise_width) {
495 		while (*width) {
496 			if ((*width >= xres) && (matroxfb_test_and_set_rounding(minfo, *width, bpp) == *width)) {
497 				break;
498 			}
499 			width++;
500 		}
501 		xres_new = *width;
502 	} else {
503 		xres_new = matroxfb_test_and_set_rounding(minfo, xres, bpp);
504 	}
505 	return xres_new;
506 }
507 
508 static int matroxfb_get_cmap_len(struct fb_var_screeninfo *var) {
509 
510 	DBG(__func__)
511 
512 	switch (var->bits_per_pixel) {
513 		case 4:
514 			return 16;	/* pseudocolor... 16 entries HW palette */
515 		case 8:
516 			return 256;	/* pseudocolor... 256 entries HW palette */
517 		case 16:
518 			return 16;	/* directcolor... 16 entries SW palette */
519 					/* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
520 		case 24:
521 			return 16;	/* directcolor... 16 entries SW palette */
522 					/* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
523 		case 32:
524 			return 16;	/* directcolor... 16 entries SW palette */
525 					/* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
526 	}
527 	return 16;	/* return something reasonable... or panic()? */
528 }
529 
530 static int matroxfb_decode_var(const struct matrox_fb_info *minfo,
531 			       struct fb_var_screeninfo *var, int *visual,
532 			       int *video_cmap_len, unsigned int* ydstorg)
533 {
534 	struct RGBT {
535 		unsigned char bpp;
536 		struct {
537 			unsigned char offset,
538 				      length;
539 		} red,
540 		  green,
541 		  blue,
542 		  transp;
543 		signed char visual;
544 	};
545 	static const struct RGBT table[]= {
546 		{ 8,{ 0,8},{0,8},{0,8},{ 0,0},MX_VISUAL_PSEUDOCOLOR},
547 		{15,{10,5},{5,5},{0,5},{15,1},MX_VISUAL_DIRECTCOLOR},
548 		{16,{11,5},{5,6},{0,5},{ 0,0},MX_VISUAL_DIRECTCOLOR},
549 		{24,{16,8},{8,8},{0,8},{ 0,0},MX_VISUAL_DIRECTCOLOR},
550 		{32,{16,8},{8,8},{0,8},{24,8},MX_VISUAL_DIRECTCOLOR}
551 	};
552 	struct RGBT const *rgbt;
553 	unsigned int bpp = var->bits_per_pixel;
554 	unsigned int vramlen;
555 	unsigned int memlen;
556 
557 	DBG(__func__)
558 
559 	switch (bpp) {
560 		case 4:	 if (!minfo->capable.cfb4) return -EINVAL;
561 			 break;
562 		case 8:	 break;
563 		case 16: break;
564 		case 24: break;
565 		case 32: break;
566 		default: return -EINVAL;
567 	}
568 	*ydstorg = 0;
569 	vramlen = minfo->video.len_usable;
570 	if (var->yres_virtual < var->yres)
571 		var->yres_virtual = var->yres;
572 	if (var->xres_virtual < var->xres)
573 		var->xres_virtual = var->xres;
574 
575 	var->xres_virtual = matroxfb_pitch_adjust(minfo, var->xres_virtual, bpp);
576 	memlen = var->xres_virtual * bpp * var->yres_virtual / 8;
577 	if (memlen > vramlen) {
578 		var->yres_virtual = vramlen * 8 / (var->xres_virtual * bpp);
579 		memlen = var->xres_virtual * bpp * var->yres_virtual / 8;
580 	}
581 	/* There is hardware bug that no line can cross 4MB boundary */
582 	/* give up for CFB24, it is impossible to easy workaround it */
583 	/* for other try to do something */
584 	if (!minfo->capable.cross4MB && (memlen > 0x400000)) {
585 		if (bpp == 24) {
586 			/* sorry */
587 		} else {
588 			unsigned int linelen;
589 			unsigned int m1 = linelen = var->xres_virtual * bpp / 8;
590 			unsigned int m2 = PAGE_SIZE;	/* or 128 if you do not need PAGE ALIGNED address */
591 			unsigned int max_yres;
592 
593 			while (m1) {
594 				int t;
595 
596 				while (m2 >= m1) m2 -= m1;
597 				t = m1;
598 				m1 = m2;
599 				m2 = t;
600 			}
601 			m2 = linelen * PAGE_SIZE / m2;
602 			*ydstorg = m2 = 0x400000 % m2;
603 			max_yres = (vramlen - m2) / linelen;
604 			if (var->yres_virtual > max_yres)
605 				var->yres_virtual = max_yres;
606 		}
607 	}
608 	/* YDSTLEN contains only signed 16bit value */
609 	if (var->yres_virtual > 32767)
610 		var->yres_virtual = 32767;
611 	/* we must round yres/xres down, we already rounded y/xres_virtual up
612 	   if it was possible. We should return -EINVAL, but I disagree */
613 	if (var->yres_virtual < var->yres)
614 		var->yres = var->yres_virtual;
615 	if (var->xres_virtual < var->xres)
616 		var->xres = var->xres_virtual;
617 	if (var->xoffset + var->xres > var->xres_virtual)
618 		var->xoffset = var->xres_virtual - var->xres;
619 	if (var->yoffset + var->yres > var->yres_virtual)
620 		var->yoffset = var->yres_virtual - var->yres;
621 
622 	if (bpp == 16 && var->green.length == 5) {
623 		bpp--; /* an artificial value - 15 */
624 	}
625 
626 	for (rgbt = table; rgbt->bpp < bpp; rgbt++);
627 #define	SETCLR(clr)\
628 	var->clr.offset = rgbt->clr.offset;\
629 	var->clr.length = rgbt->clr.length
630 	SETCLR(red);
631 	SETCLR(green);
632 	SETCLR(blue);
633 	SETCLR(transp);
634 #undef	SETCLR
635 	*visual = rgbt->visual;
636 
637 	if (bpp > 8)
638 		dprintk("matroxfb: truecolor: "
639 			"size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
640 			var->transp.length, var->red.length, var->green.length, var->blue.length,
641 			var->transp.offset, var->red.offset, var->green.offset, var->blue.offset);
642 
643 	*video_cmap_len = matroxfb_get_cmap_len(var);
644 	dprintk(KERN_INFO "requested %d*%d/%dbpp (%d*%d)\n", var->xres, var->yres, var->bits_per_pixel,
645 				var->xres_virtual, var->yres_virtual);
646 	return 0;
647 }
648 
649 static int matroxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
650 			      unsigned blue, unsigned transp,
651 			      struct fb_info *fb_info)
652 {
653 	struct matrox_fb_info* minfo = container_of(fb_info, struct matrox_fb_info, fbcon);
654 
655 	DBG(__func__)
656 
657 	/*
658 	 *  Set a single color register. The values supplied are
659 	 *  already rounded down to the hardware's capabilities
660 	 *  (according to the entries in the `var' structure). Return
661 	 *  != 0 for invalid regno.
662 	 */
663 
664 	if (regno >= minfo->curr.cmap_len)
665 		return 1;
666 
667 	if (minfo->fbcon.var.grayscale) {
668 		/* gray = 0.30*R + 0.59*G + 0.11*B */
669 		red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
670 	}
671 
672 	red = CNVT_TOHW(red, minfo->fbcon.var.red.length);
673 	green = CNVT_TOHW(green, minfo->fbcon.var.green.length);
674 	blue = CNVT_TOHW(blue, minfo->fbcon.var.blue.length);
675 	transp = CNVT_TOHW(transp, minfo->fbcon.var.transp.length);
676 
677 	switch (minfo->fbcon.var.bits_per_pixel) {
678 	case 4:
679 	case 8:
680 		mga_outb(M_DAC_REG, regno);
681 		mga_outb(M_DAC_VAL, red);
682 		mga_outb(M_DAC_VAL, green);
683 		mga_outb(M_DAC_VAL, blue);
684 		break;
685 	case 16:
686 		if (regno >= 16)
687 			break;
688 		{
689 			u_int16_t col =
690 				(red << minfo->fbcon.var.red.offset)     |
691 				(green << minfo->fbcon.var.green.offset) |
692 				(blue << minfo->fbcon.var.blue.offset)   |
693 				(transp << minfo->fbcon.var.transp.offset); /* for 1:5:5:5 */
694 			minfo->cmap[regno] = col | (col << 16);
695 		}
696 		break;
697 	case 24:
698 	case 32:
699 		if (regno >= 16)
700 			break;
701 		minfo->cmap[regno] =
702 			(red   << minfo->fbcon.var.red.offset)   |
703 			(green << minfo->fbcon.var.green.offset) |
704 			(blue  << minfo->fbcon.var.blue.offset)  |
705 			(transp << minfo->fbcon.var.transp.offset);	/* 8:8:8:8 */
706 		break;
707 	}
708 	return 0;
709 }
710 
711 static void matroxfb_init_fix(struct matrox_fb_info *minfo)
712 {
713 	struct fb_fix_screeninfo *fix = &minfo->fbcon.fix;
714 	DBG(__func__)
715 
716 	strcpy(fix->id,"MATROX");
717 
718 	fix->xpanstep = 8;	/* 8 for 8bpp, 4 for 16bpp, 2 for 32bpp */
719 	fix->ypanstep = 1;
720 	fix->ywrapstep = 0;
721 	fix->mmio_start = minfo->mmio.base;
722 	fix->mmio_len = minfo->mmio.len;
723 	fix->accel = minfo->devflags.accelerator;
724 }
725 
726 static void matroxfb_update_fix(struct matrox_fb_info *minfo)
727 {
728 	struct fb_fix_screeninfo *fix = &minfo->fbcon.fix;
729 	DBG(__func__)
730 
731 	mutex_lock(&minfo->fbcon.mm_lock);
732 	fix->smem_start = minfo->video.base + minfo->curr.ydstorg.bytes;
733 	fix->smem_len = minfo->video.len_usable - minfo->curr.ydstorg.bytes;
734 	mutex_unlock(&minfo->fbcon.mm_lock);
735 }
736 
737 static int matroxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
738 {
739 	int err;
740 	int visual;
741 	int cmap_len;
742 	unsigned int ydstorg;
743 	struct matrox_fb_info *minfo = info2minfo(info);
744 
745 	if (minfo->dead) {
746 		return -ENXIO;
747 	}
748 	if ((err = matroxfb_decode_var(minfo, var, &visual, &cmap_len, &ydstorg)) != 0)
749 		return err;
750 	return 0;
751 }
752 
753 static int matroxfb_set_par(struct fb_info *info)
754 {
755 	int err;
756 	int visual;
757 	int cmap_len;
758 	unsigned int ydstorg;
759 	struct fb_var_screeninfo *var;
760 	struct matrox_fb_info *minfo = info2minfo(info);
761 
762 	DBG(__func__)
763 
764 	if (minfo->dead) {
765 		return -ENXIO;
766 	}
767 
768 	var = &info->var;
769 	if ((err = matroxfb_decode_var(minfo, var, &visual, &cmap_len, &ydstorg)) != 0)
770 		return err;
771 	minfo->fbcon.screen_base = vaddr_va(minfo->video.vbase) + ydstorg;
772 	matroxfb_update_fix(minfo);
773 	minfo->fbcon.fix.visual = visual;
774 	minfo->fbcon.fix.type = FB_TYPE_PACKED_PIXELS;
775 	minfo->fbcon.fix.type_aux = 0;
776 	minfo->fbcon.fix.line_length = (var->xres_virtual * var->bits_per_pixel) >> 3;
777 	{
778 		unsigned int pos;
779 
780 		minfo->curr.cmap_len = cmap_len;
781 		ydstorg += minfo->devflags.ydstorg;
782 		minfo->curr.ydstorg.bytes = ydstorg;
783 		minfo->curr.ydstorg.chunks = ydstorg >> (isInterleave(minfo) ? 3 : 2);
784 		if (var->bits_per_pixel == 4)
785 			minfo->curr.ydstorg.pixels = ydstorg;
786 		else
787 			minfo->curr.ydstorg.pixels = (ydstorg * 8) / var->bits_per_pixel;
788 		minfo->curr.final_bppShift = matroxfb_get_final_bppShift(minfo, var->bits_per_pixel);
789 		{	struct my_timming mt;
790 			struct matrox_hw_state* hw;
791 			int out;
792 
793 			matroxfb_var2my(var, &mt);
794 			mt.crtc = MATROXFB_SRC_CRTC1;
795 			/* CRTC1 delays */
796 			switch (var->bits_per_pixel) {
797 				case  0:	mt.delay = 31 + 0; break;
798 				case 16:	mt.delay = 21 + 8; break;
799 				case 24:	mt.delay = 17 + 8; break;
800 				case 32:	mt.delay = 16 + 8; break;
801 				default:	mt.delay = 31 + 8; break;
802 			}
803 
804 			hw = &minfo->hw;
805 
806 			down_read(&minfo->altout.lock);
807 			for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
808 				if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
809 				    minfo->outputs[out].output->compute) {
810 					minfo->outputs[out].output->compute(minfo->outputs[out].data, &mt);
811 				}
812 			}
813 			up_read(&minfo->altout.lock);
814 			minfo->crtc1.pixclock = mt.pixclock;
815 			minfo->crtc1.mnp = mt.mnp;
816 			minfo->hw_switch->init(minfo, &mt);
817 			pos = (var->yoffset * var->xres_virtual + var->xoffset) * minfo->curr.final_bppShift / 32;
818 			pos += minfo->curr.ydstorg.chunks;
819 
820 			hw->CRTC[0x0D] = pos & 0xFF;
821 			hw->CRTC[0x0C] = (pos & 0xFF00) >> 8;
822 			hw->CRTCEXT[0] = (hw->CRTCEXT[0] & 0xF0) | ((pos >> 16) & 0x0F) | ((pos >> 14) & 0x40);
823 			hw->CRTCEXT[8] = pos >> 21;
824 			minfo->hw_switch->restore(minfo);
825 			update_crtc2(minfo, pos);
826 			down_read(&minfo->altout.lock);
827 			for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
828 				if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
829 				    minfo->outputs[out].output->program) {
830 					minfo->outputs[out].output->program(minfo->outputs[out].data);
831 				}
832 			}
833 			for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
834 				if (minfo->outputs[out].src == MATROXFB_SRC_CRTC1 &&
835 				    minfo->outputs[out].output->start) {
836 					minfo->outputs[out].output->start(minfo->outputs[out].data);
837 				}
838 			}
839 			up_read(&minfo->altout.lock);
840 			matrox_cfbX_init(minfo);
841 		}
842 	}
843 	minfo->initialized = 1;
844 	return 0;
845 }
846 
847 static int matroxfb_get_vblank(struct matrox_fb_info *minfo,
848 			       struct fb_vblank *vblank)
849 {
850 	unsigned int sts1;
851 
852 	matroxfb_enable_irq(minfo, 0);
853 	memset(vblank, 0, sizeof(*vblank));
854 	vblank->flags = FB_VBLANK_HAVE_VCOUNT | FB_VBLANK_HAVE_VSYNC |
855 			FB_VBLANK_HAVE_VBLANK | FB_VBLANK_HAVE_HBLANK;
856 	sts1 = mga_inb(M_INSTS1);
857 	vblank->vcount = mga_inl(M_VCOUNT);
858 	/* BTW, on my PIII/450 with G400, reading M_INSTS1
859 	   byte makes this call about 12% slower (1.70 vs. 2.05 us
860 	   per ioctl()) */
861 	if (sts1 & 1)
862 		vblank->flags |= FB_VBLANK_HBLANKING;
863 	if (sts1 & 8)
864 		vblank->flags |= FB_VBLANK_VSYNCING;
865 	if (vblank->vcount >= minfo->fbcon.var.yres)
866 		vblank->flags |= FB_VBLANK_VBLANKING;
867 	if (test_bit(0, &minfo->irq_flags)) {
868 		vblank->flags |= FB_VBLANK_HAVE_COUNT;
869 		/* Only one writer, aligned int value...
870 		   it should work without lock and without atomic_t */
871 		vblank->count = minfo->crtc1.vsync.cnt;
872 	}
873 	return 0;
874 }
875 
876 static struct matrox_altout panellink_output = {
877 	.name	 = "Panellink output",
878 };
879 
880 static int matroxfb_ioctl(struct fb_info *info,
881 			  unsigned int cmd, unsigned long arg)
882 {
883 	void __user *argp = (void __user *)arg;
884 	struct matrox_fb_info *minfo = info2minfo(info);
885 
886 	DBG(__func__)
887 
888 	if (minfo->dead) {
889 		return -ENXIO;
890 	}
891 
892 	switch (cmd) {
893 		case FBIOGET_VBLANK:
894 			{
895 				struct fb_vblank vblank;
896 				int err;
897 
898 				err = matroxfb_get_vblank(minfo, &vblank);
899 				if (err)
900 					return err;
901 				if (copy_to_user(argp, &vblank, sizeof(vblank)))
902 					return -EFAULT;
903 				return 0;
904 			}
905 		case FBIO_WAITFORVSYNC:
906 			{
907 				u_int32_t crt;
908 
909 				if (get_user(crt, (u_int32_t __user *)arg))
910 					return -EFAULT;
911 
912 				return matroxfb_wait_for_sync(minfo, crt);
913 			}
914 		case MATROXFB_SET_OUTPUT_MODE:
915 			{
916 				struct matroxioc_output_mode mom;
917 				struct matrox_altout *oproc;
918 				int val;
919 
920 				if (copy_from_user(&mom, argp, sizeof(mom)))
921 					return -EFAULT;
922 				if (mom.output >= MATROXFB_MAX_OUTPUTS)
923 					return -ENXIO;
924 				down_read(&minfo->altout.lock);
925 				oproc = minfo->outputs[mom.output].output;
926 				if (!oproc) {
927 					val = -ENXIO;
928 				} else if (!oproc->verifymode) {
929 					if (mom.mode == MATROXFB_OUTPUT_MODE_MONITOR) {
930 						val = 0;
931 					} else {
932 						val = -EINVAL;
933 					}
934 				} else {
935 					val = oproc->verifymode(minfo->outputs[mom.output].data, mom.mode);
936 				}
937 				if (!val) {
938 					if (minfo->outputs[mom.output].mode != mom.mode) {
939 						minfo->outputs[mom.output].mode = mom.mode;
940 						val = 1;
941 					}
942 				}
943 				up_read(&minfo->altout.lock);
944 				if (val != 1)
945 					return val;
946 				switch (minfo->outputs[mom.output].src) {
947 					case MATROXFB_SRC_CRTC1:
948 						matroxfb_set_par(info);
949 						break;
950 					case MATROXFB_SRC_CRTC2:
951 						{
952 							struct matroxfb_dh_fb_info* crtc2;
953 
954 							down_read(&minfo->crtc2.lock);
955 							crtc2 = minfo->crtc2.info;
956 							if (crtc2)
957 								crtc2->fbcon.fbops->fb_set_par(&crtc2->fbcon);
958 							up_read(&minfo->crtc2.lock);
959 						}
960 						break;
961 				}
962 				return 0;
963 			}
964 		case MATROXFB_GET_OUTPUT_MODE:
965 			{
966 				struct matroxioc_output_mode mom;
967 				struct matrox_altout *oproc;
968 				int val;
969 
970 				if (copy_from_user(&mom, argp, sizeof(mom)))
971 					return -EFAULT;
972 				if (mom.output >= MATROXFB_MAX_OUTPUTS)
973 					return -ENXIO;
974 				down_read(&minfo->altout.lock);
975 				oproc = minfo->outputs[mom.output].output;
976 				if (!oproc) {
977 					val = -ENXIO;
978 				} else {
979 					mom.mode = minfo->outputs[mom.output].mode;
980 					val = 0;
981 				}
982 				up_read(&minfo->altout.lock);
983 				if (val)
984 					return val;
985 				if (copy_to_user(argp, &mom, sizeof(mom)))
986 					return -EFAULT;
987 				return 0;
988 			}
989 		case MATROXFB_SET_OUTPUT_CONNECTION:
990 			{
991 				u_int32_t tmp;
992 				int i;
993 				int changes;
994 
995 				if (copy_from_user(&tmp, argp, sizeof(tmp)))
996 					return -EFAULT;
997 				for (i = 0; i < 32; i++) {
998 					if (tmp & (1 << i)) {
999 						if (i >= MATROXFB_MAX_OUTPUTS)
1000 							return -ENXIO;
1001 						if (!minfo->outputs[i].output)
1002 							return -ENXIO;
1003 						switch (minfo->outputs[i].src) {
1004 							case MATROXFB_SRC_NONE:
1005 							case MATROXFB_SRC_CRTC1:
1006 								break;
1007 							default:
1008 								return -EBUSY;
1009 						}
1010 					}
1011 				}
1012 				if (minfo->devflags.panellink) {
1013 					if (tmp & MATROXFB_OUTPUT_CONN_DFP) {
1014 						if (tmp & MATROXFB_OUTPUT_CONN_SECONDARY)
1015 							return -EINVAL;
1016 						for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1017 							if (minfo->outputs[i].src == MATROXFB_SRC_CRTC2) {
1018 								return -EBUSY;
1019 							}
1020 						}
1021 					}
1022 				}
1023 				changes = 0;
1024 				for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1025 					if (tmp & (1 << i)) {
1026 						if (minfo->outputs[i].src != MATROXFB_SRC_CRTC1) {
1027 							changes = 1;
1028 							minfo->outputs[i].src = MATROXFB_SRC_CRTC1;
1029 						}
1030 					} else if (minfo->outputs[i].src == MATROXFB_SRC_CRTC1) {
1031 						changes = 1;
1032 						minfo->outputs[i].src = MATROXFB_SRC_NONE;
1033 					}
1034 				}
1035 				if (!changes)
1036 					return 0;
1037 				matroxfb_set_par(info);
1038 				return 0;
1039 			}
1040 		case MATROXFB_GET_OUTPUT_CONNECTION:
1041 			{
1042 				u_int32_t conn = 0;
1043 				int i;
1044 
1045 				for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1046 					if (minfo->outputs[i].src == MATROXFB_SRC_CRTC1) {
1047 						conn |= 1 << i;
1048 					}
1049 				}
1050 				if (put_user(conn, (u_int32_t __user *)arg))
1051 					return -EFAULT;
1052 				return 0;
1053 			}
1054 		case MATROXFB_GET_AVAILABLE_OUTPUTS:
1055 			{
1056 				u_int32_t conn = 0;
1057 				int i;
1058 
1059 				for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1060 					if (minfo->outputs[i].output) {
1061 						switch (minfo->outputs[i].src) {
1062 							case MATROXFB_SRC_NONE:
1063 							case MATROXFB_SRC_CRTC1:
1064 								conn |= 1 << i;
1065 								break;
1066 						}
1067 					}
1068 				}
1069 				if (minfo->devflags.panellink) {
1070 					if (conn & MATROXFB_OUTPUT_CONN_DFP)
1071 						conn &= ~MATROXFB_OUTPUT_CONN_SECONDARY;
1072 					if (conn & MATROXFB_OUTPUT_CONN_SECONDARY)
1073 						conn &= ~MATROXFB_OUTPUT_CONN_DFP;
1074 				}
1075 				if (put_user(conn, (u_int32_t __user *)arg))
1076 					return -EFAULT;
1077 				return 0;
1078 			}
1079 		case MATROXFB_GET_ALL_OUTPUTS:
1080 			{
1081 				u_int32_t conn = 0;
1082 				int i;
1083 
1084 				for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1085 					if (minfo->outputs[i].output) {
1086 						conn |= 1 << i;
1087 					}
1088 				}
1089 				if (put_user(conn, (u_int32_t __user *)arg))
1090 					return -EFAULT;
1091 				return 0;
1092 			}
1093 		case VIDIOC_QUERYCAP:
1094 			{
1095 				struct v4l2_capability r;
1096 
1097 				memset(&r, 0, sizeof(r));
1098 				strcpy(r.driver, "matroxfb");
1099 				strcpy(r.card, "Matrox");
1100 				sprintf(r.bus_info, "PCI:%s", pci_name(minfo->pcidev));
1101 				r.version = KERNEL_VERSION(1,0,0);
1102 				r.capabilities = V4L2_CAP_VIDEO_OUTPUT;
1103 				if (copy_to_user(argp, &r, sizeof(r)))
1104 					return -EFAULT;
1105 				return 0;
1106 
1107 			}
1108 		case VIDIOC_QUERYCTRL:
1109 			{
1110 				struct v4l2_queryctrl qctrl;
1111 				int err;
1112 
1113 				if (copy_from_user(&qctrl, argp, sizeof(qctrl)))
1114 					return -EFAULT;
1115 
1116 				down_read(&minfo->altout.lock);
1117 				if (!minfo->outputs[1].output) {
1118 					err = -ENXIO;
1119 				} else if (minfo->outputs[1].output->getqueryctrl) {
1120 					err = minfo->outputs[1].output->getqueryctrl(minfo->outputs[1].data, &qctrl);
1121 				} else {
1122 					err = -EINVAL;
1123 				}
1124 				up_read(&minfo->altout.lock);
1125 				if (err >= 0 &&
1126 				    copy_to_user(argp, &qctrl, sizeof(qctrl)))
1127 					return -EFAULT;
1128 				return err;
1129 			}
1130 		case VIDIOC_G_CTRL:
1131 			{
1132 				struct v4l2_control ctrl;
1133 				int err;
1134 
1135 				if (copy_from_user(&ctrl, argp, sizeof(ctrl)))
1136 					return -EFAULT;
1137 
1138 				down_read(&minfo->altout.lock);
1139 				if (!minfo->outputs[1].output) {
1140 					err = -ENXIO;
1141 				} else if (minfo->outputs[1].output->getctrl) {
1142 					err = minfo->outputs[1].output->getctrl(minfo->outputs[1].data, &ctrl);
1143 				} else {
1144 					err = -EINVAL;
1145 				}
1146 				up_read(&minfo->altout.lock);
1147 				if (err >= 0 &&
1148 				    copy_to_user(argp, &ctrl, sizeof(ctrl)))
1149 					return -EFAULT;
1150 				return err;
1151 			}
1152 		case VIDIOC_S_CTRL:
1153 			{
1154 				struct v4l2_control ctrl;
1155 				int err;
1156 
1157 				if (copy_from_user(&ctrl, argp, sizeof(ctrl)))
1158 					return -EFAULT;
1159 
1160 				down_read(&minfo->altout.lock);
1161 				if (!minfo->outputs[1].output) {
1162 					err = -ENXIO;
1163 				} else if (minfo->outputs[1].output->setctrl) {
1164 					err = minfo->outputs[1].output->setctrl(minfo->outputs[1].data, &ctrl);
1165 				} else {
1166 					err = -EINVAL;
1167 				}
1168 				up_read(&minfo->altout.lock);
1169 				return err;
1170 			}
1171 	}
1172 	return -ENOTTY;
1173 }
1174 
1175 /* 0 unblank, 1 blank, 2 no vsync, 3 no hsync, 4 off */
1176 
1177 static int matroxfb_blank(int blank, struct fb_info *info)
1178 {
1179 	int seq;
1180 	int crtc;
1181 	CRITFLAGS
1182 	struct matrox_fb_info *minfo = info2minfo(info);
1183 
1184 	DBG(__func__)
1185 
1186 	if (minfo->dead)
1187 		return 1;
1188 
1189 	switch (blank) {
1190 	case FB_BLANK_NORMAL:  seq = 0x20; crtc = 0x00; break; /* works ??? */
1191 	case FB_BLANK_VSYNC_SUSPEND:  seq = 0x20; crtc = 0x10; break;
1192 	case FB_BLANK_HSYNC_SUSPEND:  seq = 0x20; crtc = 0x20; break;
1193 	case FB_BLANK_POWERDOWN:  seq = 0x20; crtc = 0x30; break;
1194 	default: seq = 0x00; crtc = 0x00; break;
1195 	}
1196 
1197 	CRITBEGIN
1198 
1199 	mga_outb(M_SEQ_INDEX, 1);
1200 	mga_outb(M_SEQ_DATA, (mga_inb(M_SEQ_DATA) & ~0x20) | seq);
1201 	mga_outb(M_EXTVGA_INDEX, 1);
1202 	mga_outb(M_EXTVGA_DATA, (mga_inb(M_EXTVGA_DATA) & ~0x30) | crtc);
1203 
1204 	CRITEND
1205 	return 0;
1206 }
1207 
1208 static struct fb_ops matroxfb_ops = {
1209 	.owner =	THIS_MODULE,
1210 	.fb_open =	matroxfb_open,
1211 	.fb_release =	matroxfb_release,
1212 	.fb_check_var =	matroxfb_check_var,
1213 	.fb_set_par =	matroxfb_set_par,
1214 	.fb_setcolreg =	matroxfb_setcolreg,
1215 	.fb_pan_display =matroxfb_pan_display,
1216 	.fb_blank =	matroxfb_blank,
1217 	.fb_ioctl =	matroxfb_ioctl,
1218 /*	.fb_fillrect =	<set by matrox_cfbX_init>, */
1219 /*	.fb_copyarea =	<set by matrox_cfbX_init>, */
1220 /*	.fb_imageblit =	<set by matrox_cfbX_init>, */
1221 /*	.fb_cursor =	<set by matrox_cfbX_init>, */
1222 };
1223 
1224 #define RSDepth(X)	(((X) >> 8) & 0x0F)
1225 #define RS8bpp		0x1
1226 #define RS15bpp		0x2
1227 #define RS16bpp		0x3
1228 #define RS32bpp		0x4
1229 #define RS4bpp		0x5
1230 #define RS24bpp		0x6
1231 #define RSText		0x7
1232 #define RSText8		0x8
1233 /* 9-F */
1234 static struct { struct fb_bitfield red, green, blue, transp; int bits_per_pixel; } colors[] = {
1235 	{ {  0, 8, 0}, { 0, 8, 0}, { 0, 8, 0}, {  0, 0, 0},  8 },
1236 	{ { 10, 5, 0}, { 5, 5, 0}, { 0, 5, 0}, { 15, 1, 0}, 16 },
1237 	{ { 11, 5, 0}, { 5, 6, 0}, { 0, 5, 0}, {  0, 0, 0}, 16 },
1238 	{ { 16, 8, 0}, { 8, 8, 0}, { 0, 8, 0}, { 24, 8, 0}, 32 },
1239 	{ {  0, 8, 0}, { 0, 8, 0}, { 0, 8, 0}, {  0, 0, 0},  4 },
1240 	{ { 16, 8, 0}, { 8, 8, 0}, { 0, 8, 0}, {  0, 0, 0}, 24 },
1241 	{ {  0, 6, 0}, { 0, 6, 0}, { 0, 6, 0}, {  0, 0, 0},  0 },	/* textmode with (default) VGA8x16 */
1242 	{ {  0, 6, 0}, { 0, 6, 0}, { 0, 6, 0}, {  0, 0, 0},  0 },	/* textmode hardwired to VGA8x8 */
1243 };
1244 
1245 /* initialized by setup, see explanation at end of file (search for MODULE_PARM_DESC) */
1246 static unsigned int mem;		/* "matroxfb:mem:xxxxxM" */
1247 static int option_precise_width = 1;	/* cannot be changed, option_precise_width==0 must imply noaccel */
1248 static int inv24;			/* "matroxfb:inv24" */
1249 static int cross4MB = -1;		/* "matroxfb:cross4MB" */
1250 static int disabled;			/* "matroxfb:disabled" */
1251 static int noaccel;			/* "matroxfb:noaccel" */
1252 static int nopan;			/* "matroxfb:nopan" */
1253 static int no_pci_retry;		/* "matroxfb:nopciretry" */
1254 static int novga;			/* "matroxfb:novga" */
1255 static int nobios;			/* "matroxfb:nobios" */
1256 static int noinit = 1;			/* "matroxfb:init" */
1257 static int inverse;			/* "matroxfb:inverse" */
1258 static int sgram;			/* "matroxfb:sgram" */
1259 #ifdef CONFIG_MTRR
1260 static int mtrr = 1;			/* "matroxfb:nomtrr" */
1261 #endif
1262 static int grayscale;			/* "matroxfb:grayscale" */
1263 static int dev = -1;			/* "matroxfb:dev:xxxxx" */
1264 static unsigned int vesa = ~0;		/* "matroxfb:vesa:xxxxx" */
1265 static int depth = -1;			/* "matroxfb:depth:xxxxx" */
1266 static unsigned int xres;		/* "matroxfb:xres:xxxxx" */
1267 static unsigned int yres;		/* "matroxfb:yres:xxxxx" */
1268 static unsigned int upper = ~0;		/* "matroxfb:upper:xxxxx" */
1269 static unsigned int lower = ~0;		/* "matroxfb:lower:xxxxx" */
1270 static unsigned int vslen;		/* "matroxfb:vslen:xxxxx" */
1271 static unsigned int left = ~0;		/* "matroxfb:left:xxxxx" */
1272 static unsigned int right = ~0;		/* "matroxfb:right:xxxxx" */
1273 static unsigned int hslen;		/* "matroxfb:hslen:xxxxx" */
1274 static unsigned int pixclock;		/* "matroxfb:pixclock:xxxxx" */
1275 static int sync = -1;			/* "matroxfb:sync:xxxxx" */
1276 static unsigned int fv;			/* "matroxfb:fv:xxxxx" */
1277 static unsigned int fh;			/* "matroxfb:fh:xxxxxk" */
1278 static unsigned int maxclk;		/* "matroxfb:maxclk:xxxxM" */
1279 static int dfp;				/* "matroxfb:dfp */
1280 static int dfp_type = -1;		/* "matroxfb:dfp:xxx */
1281 static int memtype = -1;		/* "matroxfb:memtype:xxx" */
1282 static char outputs[8];			/* "matroxfb:outputs:xxx" */
1283 
1284 #ifndef MODULE
1285 static char videomode[64];		/* "matroxfb:mode:xxxxx" or "matroxfb:xxxxx" */
1286 #endif
1287 
1288 static int matroxfb_getmemory(struct matrox_fb_info *minfo,
1289 			      unsigned int maxSize, unsigned int *realSize)
1290 {
1291 	vaddr_t vm;
1292 	unsigned int offs;
1293 	unsigned int offs2;
1294 	unsigned char orig;
1295 	unsigned char bytes[32];
1296 	unsigned char* tmp;
1297 
1298 	DBG(__func__)
1299 
1300 	vm = minfo->video.vbase;
1301 	maxSize &= ~0x1FFFFF;	/* must be X*2MB (really it must be 2 or X*4MB) */
1302 	/* at least 2MB */
1303 	if (maxSize < 0x0200000) return 0;
1304 	if (maxSize > 0x2000000) maxSize = 0x2000000;
1305 
1306 	mga_outb(M_EXTVGA_INDEX, 0x03);
1307 	orig = mga_inb(M_EXTVGA_DATA);
1308 	mga_outb(M_EXTVGA_DATA, orig | 0x80);
1309 
1310 	tmp = bytes;
1311 	for (offs = 0x100000; offs < maxSize; offs += 0x200000)
1312 		*tmp++ = mga_readb(vm, offs);
1313 	for (offs = 0x100000; offs < maxSize; offs += 0x200000)
1314 		mga_writeb(vm, offs, 0x02);
1315 	mga_outb(M_CACHEFLUSH, 0x00);
1316 	for (offs = 0x100000; offs < maxSize; offs += 0x200000) {
1317 		if (mga_readb(vm, offs) != 0x02)
1318 			break;
1319 		mga_writeb(vm, offs, mga_readb(vm, offs) - 0x02);
1320 		if (mga_readb(vm, offs))
1321 			break;
1322 	}
1323 	tmp = bytes;
1324 	for (offs2 = 0x100000; offs2 < maxSize; offs2 += 0x200000)
1325 		mga_writeb(vm, offs2, *tmp++);
1326 
1327 	mga_outb(M_EXTVGA_INDEX, 0x03);
1328 	mga_outb(M_EXTVGA_DATA, orig);
1329 
1330 	*realSize = offs - 0x100000;
1331 #ifdef CONFIG_FB_MATROX_MILLENIUM
1332 	minfo->interleave = !(!isMillenium(minfo) || ((offs - 0x100000) & 0x3FFFFF));
1333 #endif
1334 	return 1;
1335 }
1336 
1337 struct video_board {
1338 	int maxvram;
1339 	int maxdisplayable;
1340 	int accelID;
1341 	struct matrox_switch* lowlevel;
1342 		 };
1343 #ifdef CONFIG_FB_MATROX_MILLENIUM
1344 static struct video_board vbMillennium = {
1345 	.maxvram = 0x0800000,
1346 	.maxdisplayable = 0x0800000,
1347 	.accelID = FB_ACCEL_MATROX_MGA2064W,
1348 	.lowlevel = &matrox_millennium
1349 };
1350 
1351 static struct video_board vbMillennium2 = {
1352 	.maxvram = 0x1000000,
1353 	.maxdisplayable = 0x0800000,
1354 	.accelID = FB_ACCEL_MATROX_MGA2164W,
1355 	.lowlevel = &matrox_millennium
1356 };
1357 
1358 static struct video_board vbMillennium2A = {
1359 	.maxvram = 0x1000000,
1360 	.maxdisplayable = 0x0800000,
1361 	.accelID = FB_ACCEL_MATROX_MGA2164W_AGP,
1362 	.lowlevel = &matrox_millennium
1363 };
1364 #endif	/* CONFIG_FB_MATROX_MILLENIUM */
1365 #ifdef CONFIG_FB_MATROX_MYSTIQUE
1366 static struct video_board vbMystique = {
1367 	.maxvram = 0x0800000,
1368 	.maxdisplayable = 0x0800000,
1369 	.accelID = FB_ACCEL_MATROX_MGA1064SG,
1370 	.lowlevel = &matrox_mystique
1371 };
1372 #endif	/* CONFIG_FB_MATROX_MYSTIQUE */
1373 #ifdef CONFIG_FB_MATROX_G
1374 static struct video_board vbG100 = {
1375 	.maxvram = 0x0800000,
1376 	.maxdisplayable = 0x0800000,
1377 	.accelID = FB_ACCEL_MATROX_MGAG100,
1378 	.lowlevel = &matrox_G100
1379 };
1380 
1381 static struct video_board vbG200 = {
1382 	.maxvram = 0x1000000,
1383 	.maxdisplayable = 0x1000000,
1384 	.accelID = FB_ACCEL_MATROX_MGAG200,
1385 	.lowlevel = &matrox_G100
1386 };
1387 /* from doc it looks like that accelerator can draw only to low 16MB :-( Direct accesses & displaying are OK for
1388    whole 32MB */
1389 static struct video_board vbG400 = {
1390 	.maxvram = 0x2000000,
1391 	.maxdisplayable = 0x1000000,
1392 	.accelID = FB_ACCEL_MATROX_MGAG400,
1393 	.lowlevel = &matrox_G100
1394 };
1395 #endif
1396 
1397 #define DEVF_VIDEO64BIT		0x0001
1398 #define	DEVF_SWAPS		0x0002
1399 #define DEVF_SRCORG		0x0004
1400 #define DEVF_DUALHEAD		0x0008
1401 #define DEVF_CROSS4MB		0x0010
1402 #define DEVF_TEXT4B		0x0020
1403 /* #define DEVF_recycled	0x0040	*/
1404 /* #define DEVF_recycled	0x0080	*/
1405 #define DEVF_SUPPORT32MB	0x0100
1406 #define DEVF_ANY_VXRES		0x0200
1407 #define DEVF_TEXT16B		0x0400
1408 #define DEVF_CRTC2		0x0800
1409 #define DEVF_MAVEN_CAPABLE	0x1000
1410 #define DEVF_PANELLINK_CAPABLE	0x2000
1411 #define DEVF_G450DAC		0x4000
1412 
1413 #define DEVF_GCORE	(DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB)
1414 #define DEVF_G2CORE	(DEVF_GCORE | DEVF_ANY_VXRES | DEVF_MAVEN_CAPABLE | DEVF_PANELLINK_CAPABLE | DEVF_SRCORG | DEVF_DUALHEAD)
1415 #define DEVF_G100	(DEVF_GCORE) /* no doc, no vxres... */
1416 #define DEVF_G200	(DEVF_G2CORE)
1417 #define DEVF_G400	(DEVF_G2CORE | DEVF_SUPPORT32MB | DEVF_TEXT16B | DEVF_CRTC2)
1418 /* if you'll find how to drive DFP... */
1419 #define DEVF_G450	(DEVF_GCORE | DEVF_ANY_VXRES | DEVF_SUPPORT32MB | DEVF_TEXT16B | DEVF_CRTC2 | DEVF_G450DAC | DEVF_SRCORG | DEVF_DUALHEAD)
1420 #define DEVF_G550	(DEVF_G450)
1421 
1422 static struct board {
1423 	unsigned short vendor, device, rev, svid, sid;
1424 	unsigned int flags;
1425 	unsigned int maxclk;
1426 	enum mga_chip chip;
1427 	struct video_board* base;
1428 	const char* name;
1429 		} dev_list[] = {
1430 #ifdef CONFIG_FB_MATROX_MILLENIUM
1431 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL,	0xFF,
1432 		0,			0,
1433 		DEVF_TEXT4B,
1434 		230000,
1435 		MGA_2064,
1436 		&vbMillennium,
1437 		"Millennium (PCI)"},
1438 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL_2,	0xFF,
1439 		0,			0,
1440 		DEVF_SWAPS,
1441 		220000,
1442 		MGA_2164,
1443 		&vbMillennium2,
1444 		"Millennium II (PCI)"},
1445 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL_2_AGP,	0xFF,
1446 		0,			0,
1447 		DEVF_SWAPS,
1448 		250000,
1449 		MGA_2164,
1450 		&vbMillennium2A,
1451 		"Millennium II (AGP)"},
1452 #endif
1453 #ifdef CONFIG_FB_MATROX_MYSTIQUE
1454 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS,	0x02,
1455 		0,			0,
1456 		DEVF_VIDEO64BIT | DEVF_CROSS4MB,
1457 		180000,
1458 		MGA_1064,
1459 		&vbMystique,
1460 		"Mystique (PCI)"},
1461 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS,	0xFF,
1462 		0,			0,
1463 		DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB,
1464 		220000,
1465 		MGA_1164,
1466 		&vbMystique,
1467 		"Mystique 220 (PCI)"},
1468 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS_AGP,	0x02,
1469 		0,			0,
1470 		DEVF_VIDEO64BIT | DEVF_CROSS4MB,
1471 		180000,
1472 		MGA_1064,
1473 		&vbMystique,
1474 		"Mystique (AGP)"},
1475 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS_AGP,	0xFF,
1476 		0,			0,
1477 		DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB,
1478 		220000,
1479 		MGA_1164,
1480 		&vbMystique,
1481 		"Mystique 220 (AGP)"},
1482 #endif
1483 #ifdef CONFIG_FB_MATROX_G
1484 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_MM,	0xFF,
1485 		0,			0,
1486 		DEVF_G100,
1487 		230000,
1488 		MGA_G100,
1489 		&vbG100,
1490 		"MGA-G100 (PCI)"},
1491 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_AGP,	0xFF,
1492 		0,			0,
1493 		DEVF_G100,
1494 		230000,
1495 		MGA_G100,
1496 		&vbG100,
1497 		"MGA-G100 (AGP)"},
1498 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_PCI,	0xFF,
1499 		0,			0,
1500 		DEVF_G200,
1501 		250000,
1502 		MGA_G200,
1503 		&vbG200,
1504 		"MGA-G200 (PCI)"},
1505 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1506 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_GENERIC,
1507 		DEVF_G200,
1508 		220000,
1509 		MGA_G200,
1510 		&vbG200,
1511 		"MGA-G200 (AGP)"},
1512 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1513 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MYSTIQUE_G200_AGP,
1514 		DEVF_G200,
1515 		230000,
1516 		MGA_G200,
1517 		&vbG200,
1518 		"Mystique G200 (AGP)"},
1519 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1520 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MILLENIUM_G200_AGP,
1521 		DEVF_G200,
1522 		250000,
1523 		MGA_G200,
1524 		&vbG200,
1525 		"Millennium G200 (AGP)"},
1526 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1527 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MARVEL_G200_AGP,
1528 		DEVF_G200,
1529 		230000,
1530 		MGA_G200,
1531 		&vbG200,
1532 		"Marvel G200 (AGP)"},
1533 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1534 		PCI_SS_VENDOR_ID_SIEMENS_NIXDORF,	PCI_SS_ID_SIEMENS_MGA_G200_AGP,
1535 		DEVF_G200,
1536 		230000,
1537 		MGA_G200,
1538 		&vbG200,
1539 		"MGA-G200 (AGP)"},
1540 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1541 		0,			0,
1542 		DEVF_G200,
1543 		230000,
1544 		MGA_G200,
1545 		&vbG200,
1546 		"G200 (AGP)"},
1547 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G400,	0x80,
1548 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MILLENNIUM_G400_MAX_AGP,
1549 		DEVF_G400,
1550 		360000,
1551 		MGA_G400,
1552 		&vbG400,
1553 		"Millennium G400 MAX (AGP)"},
1554 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G400,	0x80,
1555 		0,			0,
1556 		DEVF_G400,
1557 		300000,
1558 		MGA_G400,
1559 		&vbG400,
1560 		"G400 (AGP)"},
1561 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G400,	0xFF,
1562 		0,			0,
1563 		DEVF_G450,
1564 		360000,
1565 		MGA_G450,
1566 		&vbG400,
1567 		"G450"},
1568 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G550,	0xFF,
1569 		0,			0,
1570 		DEVF_G550,
1571 		360000,
1572 		MGA_G550,
1573 		&vbG400,
1574 		"G550"},
1575 #endif
1576 	{0,			0,				0xFF,
1577 		0,			0,
1578 		0,
1579 		0,
1580 		0,
1581 		NULL,
1582 		NULL}};
1583 
1584 #ifndef MODULE
1585 static struct fb_videomode defaultmode = {
1586 	/* 640x480 @ 60Hz, 31.5 kHz */
1587 	NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
1588 	0, FB_VMODE_NONINTERLACED
1589 };
1590 #endif /* !MODULE */
1591 
1592 static int hotplug = 0;
1593 
1594 static void setDefaultOutputs(struct matrox_fb_info *minfo)
1595 {
1596 	unsigned int i;
1597 	const char* ptr;
1598 
1599 	minfo->outputs[0].default_src = MATROXFB_SRC_CRTC1;
1600 	if (minfo->devflags.g450dac) {
1601 		minfo->outputs[1].default_src = MATROXFB_SRC_CRTC1;
1602 		minfo->outputs[2].default_src = MATROXFB_SRC_CRTC1;
1603 	} else if (dfp) {
1604 		minfo->outputs[2].default_src = MATROXFB_SRC_CRTC1;
1605 	}
1606 	ptr = outputs;
1607 	for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1608 		char c = *ptr++;
1609 
1610 		if (c == 0) {
1611 			break;
1612 		}
1613 		if (c == '0') {
1614 			minfo->outputs[i].default_src = MATROXFB_SRC_NONE;
1615 		} else if (c == '1') {
1616 			minfo->outputs[i].default_src = MATROXFB_SRC_CRTC1;
1617 		} else if (c == '2' && minfo->devflags.crtc2) {
1618 			minfo->outputs[i].default_src = MATROXFB_SRC_CRTC2;
1619 		} else {
1620 			printk(KERN_ERR "matroxfb: Unknown outputs setting\n");
1621 			break;
1622 		}
1623 	}
1624 	/* Nullify this option for subsequent adapters */
1625 	outputs[0] = 0;
1626 }
1627 
1628 static int initMatrox2(struct matrox_fb_info *minfo, struct board *b)
1629 {
1630 	unsigned long ctrlptr_phys = 0;
1631 	unsigned long video_base_phys = 0;
1632 	unsigned int memsize;
1633 	int err;
1634 
1635 	static struct pci_device_id intel_82437[] = {
1636 		{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437) },
1637 		{ },
1638 	};
1639 
1640 	DBG(__func__)
1641 
1642 	/* set default values... */
1643 	vesafb_defined.accel_flags = FB_ACCELF_TEXT;
1644 
1645 	minfo->hw_switch = b->base->lowlevel;
1646 	minfo->devflags.accelerator = b->base->accelID;
1647 	minfo->max_pixel_clock = b->maxclk;
1648 
1649 	printk(KERN_INFO "matroxfb: Matrox %s detected\n", b->name);
1650 	minfo->capable.plnwt = 1;
1651 	minfo->chip = b->chip;
1652 	minfo->capable.srcorg = b->flags & DEVF_SRCORG;
1653 	minfo->devflags.video64bits = b->flags & DEVF_VIDEO64BIT;
1654 	if (b->flags & DEVF_TEXT4B) {
1655 		minfo->devflags.vgastep = 4;
1656 		minfo->devflags.textmode = 4;
1657 		minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP16;
1658 	} else if (b->flags & DEVF_TEXT16B) {
1659 		minfo->devflags.vgastep = 16;
1660 		minfo->devflags.textmode = 1;
1661 		minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP16;
1662 	} else {
1663 		minfo->devflags.vgastep = 8;
1664 		minfo->devflags.textmode = 1;
1665 		minfo->devflags.text_type_aux = FB_AUX_TEXT_MGA_STEP8;
1666 	}
1667 	minfo->devflags.support32MB = (b->flags & DEVF_SUPPORT32MB) != 0;
1668 	minfo->devflags.precise_width = !(b->flags & DEVF_ANY_VXRES);
1669 	minfo->devflags.crtc2 = (b->flags & DEVF_CRTC2) != 0;
1670 	minfo->devflags.maven_capable = (b->flags & DEVF_MAVEN_CAPABLE) != 0;
1671 	minfo->devflags.dualhead = (b->flags & DEVF_DUALHEAD) != 0;
1672 	minfo->devflags.dfp_type = dfp_type;
1673 	minfo->devflags.g450dac = (b->flags & DEVF_G450DAC) != 0;
1674 	minfo->devflags.textstep = minfo->devflags.vgastep * minfo->devflags.textmode;
1675 	minfo->devflags.textvram = 65536 / minfo->devflags.textmode;
1676 	setDefaultOutputs(minfo);
1677 	if (b->flags & DEVF_PANELLINK_CAPABLE) {
1678 		minfo->outputs[2].data = minfo;
1679 		minfo->outputs[2].output = &panellink_output;
1680 		minfo->outputs[2].src = minfo->outputs[2].default_src;
1681 		minfo->outputs[2].mode = MATROXFB_OUTPUT_MODE_MONITOR;
1682 		minfo->devflags.panellink = 1;
1683 	}
1684 
1685 	if (minfo->capable.cross4MB < 0)
1686 		minfo->capable.cross4MB = b->flags & DEVF_CROSS4MB;
1687 	if (b->flags & DEVF_SWAPS) {
1688 		ctrlptr_phys = pci_resource_start(minfo->pcidev, 1);
1689 		video_base_phys = pci_resource_start(minfo->pcidev, 0);
1690 		minfo->devflags.fbResource = PCI_BASE_ADDRESS_0;
1691 	} else {
1692 		ctrlptr_phys = pci_resource_start(minfo->pcidev, 0);
1693 		video_base_phys = pci_resource_start(minfo->pcidev, 1);
1694 		minfo->devflags.fbResource = PCI_BASE_ADDRESS_1;
1695 	}
1696 	err = -EINVAL;
1697 	if (!ctrlptr_phys) {
1698 		printk(KERN_ERR "matroxfb: control registers are not available, matroxfb disabled\n");
1699 		goto fail;
1700 	}
1701 	if (!video_base_phys) {
1702 		printk(KERN_ERR "matroxfb: video RAM is not available in PCI address space, matroxfb disabled\n");
1703 		goto fail;
1704 	}
1705 	memsize = b->base->maxvram;
1706 	if (!request_mem_region(ctrlptr_phys, 16384, "matroxfb MMIO")) {
1707 		goto fail;
1708 	}
1709 	if (!request_mem_region(video_base_phys, memsize, "matroxfb FB")) {
1710 		goto failCtrlMR;
1711 	}
1712 	minfo->video.len_maximum = memsize;
1713 	/* convert mem (autodetect k, M) */
1714 	if (mem < 1024) mem *= 1024;
1715 	if (mem < 0x00100000) mem *= 1024;
1716 
1717 	if (mem && (mem < memsize))
1718 		memsize = mem;
1719 	err = -ENOMEM;
1720 	if (mga_ioremap(ctrlptr_phys, 16384, MGA_IOREMAP_MMIO, &minfo->mmio.vbase)) {
1721 		printk(KERN_ERR "matroxfb: cannot ioremap(%lX, 16384), matroxfb disabled\n", ctrlptr_phys);
1722 		goto failVideoMR;
1723 	}
1724 	minfo->mmio.base = ctrlptr_phys;
1725 	minfo->mmio.len = 16384;
1726 	minfo->video.base = video_base_phys;
1727 	if (mga_ioremap(video_base_phys, memsize, MGA_IOREMAP_FB, &minfo->video.vbase)) {
1728 		printk(KERN_ERR "matroxfb: cannot ioremap(%lX, %d), matroxfb disabled\n",
1729 			video_base_phys, memsize);
1730 		goto failCtrlIO;
1731 	}
1732 	{
1733 		u_int32_t cmd;
1734 		u_int32_t mga_option;
1735 
1736 		pci_read_config_dword(minfo->pcidev, PCI_OPTION_REG, &mga_option);
1737 		pci_read_config_dword(minfo->pcidev, PCI_COMMAND, &cmd);
1738 		mga_option &= 0x7FFFFFFF; /* clear BIG_ENDIAN */
1739 		mga_option |= MX_OPTION_BSWAP;
1740 		/* disable palette snooping */
1741 		cmd &= ~PCI_COMMAND_VGA_PALETTE;
1742 		if (pci_dev_present(intel_82437)) {
1743 			if (!(mga_option & 0x20000000) && !minfo->devflags.nopciretry) {
1744 				printk(KERN_WARNING "matroxfb: Disabling PCI retries due to i82437 present\n");
1745 			}
1746 			mga_option |= 0x20000000;
1747 			minfo->devflags.nopciretry = 1;
1748 		}
1749 		pci_write_config_dword(minfo->pcidev, PCI_COMMAND, cmd);
1750 		pci_write_config_dword(minfo->pcidev, PCI_OPTION_REG, mga_option);
1751 		minfo->hw.MXoptionReg = mga_option;
1752 
1753 		/* select non-DMA memory for PCI_MGA_DATA, otherwise dump of PCI cfg space can lock PCI bus */
1754 		/* maybe preinit() candidate, but it is same... for all devices... at this time... */
1755 		pci_write_config_dword(minfo->pcidev, PCI_MGA_INDEX, 0x00003C00);
1756 	}
1757 
1758 	err = -ENXIO;
1759 	matroxfb_read_pins(minfo);
1760 	if (minfo->hw_switch->preinit(minfo)) {
1761 		goto failVideoIO;
1762 	}
1763 
1764 	err = -ENOMEM;
1765 	if (!matroxfb_getmemory(minfo, memsize, &minfo->video.len) || !minfo->video.len) {
1766 		printk(KERN_ERR "matroxfb: cannot determine memory size\n");
1767 		goto failVideoIO;
1768 	}
1769 	minfo->devflags.ydstorg = 0;
1770 
1771 	minfo->video.base = video_base_phys;
1772 	minfo->video.len_usable = minfo->video.len;
1773 	if (minfo->video.len_usable > b->base->maxdisplayable)
1774 		minfo->video.len_usable = b->base->maxdisplayable;
1775 #ifdef CONFIG_MTRR
1776 	if (mtrr) {
1777 		minfo->mtrr.vram = mtrr_add(video_base_phys, minfo->video.len, MTRR_TYPE_WRCOMB, 1);
1778 		minfo->mtrr.vram_valid = 1;
1779 		printk(KERN_INFO "matroxfb: MTRR's turned on\n");
1780 	}
1781 #endif	/* CONFIG_MTRR */
1782 
1783 	if (!minfo->devflags.novga)
1784 		request_region(0x3C0, 32, "matrox");
1785 	matroxfb_g450_connect(minfo);
1786 	minfo->hw_switch->reset(minfo);
1787 
1788 	minfo->fbcon.monspecs.hfmin = 0;
1789 	minfo->fbcon.monspecs.hfmax = fh;
1790 	minfo->fbcon.monspecs.vfmin = 0;
1791 	minfo->fbcon.monspecs.vfmax = fv;
1792 	minfo->fbcon.monspecs.dpms = 0;	/* TBD */
1793 
1794 	/* static settings */
1795 	vesafb_defined.red = colors[depth-1].red;
1796 	vesafb_defined.green = colors[depth-1].green;
1797 	vesafb_defined.blue = colors[depth-1].blue;
1798 	vesafb_defined.bits_per_pixel = colors[depth-1].bits_per_pixel;
1799 	vesafb_defined.grayscale = grayscale;
1800 	vesafb_defined.vmode = 0;
1801 	if (noaccel)
1802 		vesafb_defined.accel_flags &= ~FB_ACCELF_TEXT;
1803 
1804 	minfo->fbops = matroxfb_ops;
1805 	minfo->fbcon.fbops = &minfo->fbops;
1806 	minfo->fbcon.pseudo_palette = minfo->cmap;
1807 	/* after __init time we are like module... no logo */
1808 	minfo->fbcon.flags = hotplug ? FBINFO_FLAG_MODULE : FBINFO_FLAG_DEFAULT;
1809 	minfo->fbcon.flags |= FBINFO_PARTIAL_PAN_OK | 	 /* Prefer panning for scroll under MC viewer/edit */
1810 				      FBINFO_HWACCEL_COPYAREA |  /* We have hw-assisted bmove */
1811 				      FBINFO_HWACCEL_FILLRECT |  /* And fillrect */
1812 				      FBINFO_HWACCEL_IMAGEBLIT | /* And imageblit */
1813 				      FBINFO_HWACCEL_XPAN |      /* And we support both horizontal */
1814 				      FBINFO_HWACCEL_YPAN |      /* And vertical panning */
1815 				      FBINFO_READS_FAST;
1816 	minfo->video.len_usable &= PAGE_MASK;
1817 	fb_alloc_cmap(&minfo->fbcon.cmap, 256, 1);
1818 
1819 #ifndef MODULE
1820 	/* mode database is marked __init!!! */
1821 	if (!hotplug) {
1822 		fb_find_mode(&vesafb_defined, &minfo->fbcon, videomode[0] ? videomode : NULL,
1823 			NULL, 0, &defaultmode, vesafb_defined.bits_per_pixel);
1824 	}
1825 #endif /* !MODULE */
1826 
1827 	/* mode modifiers */
1828 	if (hslen)
1829 		vesafb_defined.hsync_len = hslen;
1830 	if (vslen)
1831 		vesafb_defined.vsync_len = vslen;
1832 	if (left != ~0)
1833 		vesafb_defined.left_margin = left;
1834 	if (right != ~0)
1835 		vesafb_defined.right_margin = right;
1836 	if (upper != ~0)
1837 		vesafb_defined.upper_margin = upper;
1838 	if (lower != ~0)
1839 		vesafb_defined.lower_margin = lower;
1840 	if (xres)
1841 		vesafb_defined.xres = xres;
1842 	if (yres)
1843 		vesafb_defined.yres = yres;
1844 	if (sync != -1)
1845 		vesafb_defined.sync = sync;
1846 	else if (vesafb_defined.sync == ~0) {
1847 		vesafb_defined.sync = 0;
1848 		if (yres < 400)
1849 			vesafb_defined.sync |= FB_SYNC_HOR_HIGH_ACT;
1850 		else if (yres < 480)
1851 			vesafb_defined.sync |= FB_SYNC_VERT_HIGH_ACT;
1852 	}
1853 
1854 	/* fv, fh, maxclk limits was specified */
1855 	{
1856 		unsigned int tmp;
1857 
1858 		if (fv) {
1859 			tmp = fv * (vesafb_defined.upper_margin + vesafb_defined.yres
1860 				  + vesafb_defined.lower_margin + vesafb_defined.vsync_len);
1861 			if ((tmp < fh) || (fh == 0)) fh = tmp;
1862 		}
1863 		if (fh) {
1864 			tmp = fh * (vesafb_defined.left_margin + vesafb_defined.xres
1865 				  + vesafb_defined.right_margin + vesafb_defined.hsync_len);
1866 			if ((tmp < maxclk) || (maxclk == 0)) maxclk = tmp;
1867 		}
1868 		tmp = (maxclk + 499) / 500;
1869 		if (tmp) {
1870 			tmp = (2000000000 + tmp) / tmp;
1871 			if (tmp > pixclock) pixclock = tmp;
1872 		}
1873 	}
1874 	if (pixclock) {
1875 		if (pixclock < 2000)		/* > 500MHz */
1876 			pixclock = 4000;	/* 250MHz */
1877 		if (pixclock > 1000000)
1878 			pixclock = 1000000;	/* 1MHz */
1879 		vesafb_defined.pixclock = pixclock;
1880 	}
1881 
1882 	/* FIXME: Where to move this?! */
1883 #if defined(CONFIG_PPC_PMAC)
1884 #ifndef MODULE
1885 	if (machine_is(powermac)) {
1886 		struct fb_var_screeninfo var;
1887 		if (default_vmode <= 0 || default_vmode > VMODE_MAX)
1888 			default_vmode = VMODE_640_480_60;
1889 #ifdef CONFIG_NVRAM
1890 		if (default_cmode == CMODE_NVRAM)
1891 			default_cmode = nvram_read_byte(NV_CMODE);
1892 #endif
1893 		if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
1894 			default_cmode = CMODE_8;
1895 		if (!mac_vmode_to_var(default_vmode, default_cmode, &var)) {
1896 			var.accel_flags = vesafb_defined.accel_flags;
1897 			var.xoffset = var.yoffset = 0;
1898 			/* Note: mac_vmode_to_var() does not set all parameters */
1899 			vesafb_defined = var;
1900 		}
1901 	}
1902 #endif /* !MODULE */
1903 #endif /* CONFIG_PPC_PMAC */
1904 	vesafb_defined.xres_virtual = vesafb_defined.xres;
1905 	if (nopan) {
1906 		vesafb_defined.yres_virtual = vesafb_defined.yres;
1907 	} else {
1908 		vesafb_defined.yres_virtual = 65536; /* large enough to be INF, but small enough
1909 							to yres_virtual * xres_virtual < 2^32 */
1910 	}
1911 	matroxfb_init_fix(minfo);
1912 	minfo->fbcon.screen_base = vaddr_va(minfo->video.vbase);
1913 	/* Normalize values (namely yres_virtual) */
1914 	matroxfb_check_var(&vesafb_defined, &minfo->fbcon);
1915 	/* And put it into "current" var. Do NOT program hardware yet, or we'll not take over
1916 	 * vgacon correctly. fbcon_startup will call fb_set_par for us, WITHOUT check_var,
1917 	 * and unfortunately it will do it BEFORE vgacon contents is saved, so it won't work
1918 	 * anyway. But we at least tried... */
1919 	minfo->fbcon.var = vesafb_defined;
1920 	err = -EINVAL;
1921 
1922 	printk(KERN_INFO "matroxfb: %dx%dx%dbpp (virtual: %dx%d)\n",
1923 		vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel,
1924 		vesafb_defined.xres_virtual, vesafb_defined.yres_virtual);
1925 	printk(KERN_INFO "matroxfb: framebuffer at 0x%lX, mapped to 0x%p, size %d\n",
1926 		minfo->video.base, vaddr_va(minfo->video.vbase), minfo->video.len);
1927 
1928 /* We do not have to set currcon to 0... register_framebuffer do it for us on first console
1929  * and we do not want currcon == 0 for subsequent framebuffers */
1930 
1931 	minfo->fbcon.device = &minfo->pcidev->dev;
1932 	if (register_framebuffer(&minfo->fbcon) < 0) {
1933 		goto failVideoIO;
1934 	}
1935 	fb_info(&minfo->fbcon, "%s frame buffer device\n", minfo->fbcon.fix.id);
1936 
1937 	/* there is no console on this fb... but we have to initialize hardware
1938 	 * until someone tells me what is proper thing to do */
1939 	if (!minfo->initialized) {
1940 		fb_info(&minfo->fbcon, "initializing hardware\n");
1941 		/* We have to use FB_ACTIVATE_FORCE, as we had to put vesafb_defined to the fbcon.var
1942 		 * already before, so register_framebuffer works correctly. */
1943 		vesafb_defined.activate |= FB_ACTIVATE_FORCE;
1944 		fb_set_var(&minfo->fbcon, &vesafb_defined);
1945 	}
1946 
1947 	return 0;
1948 failVideoIO:;
1949 	matroxfb_g450_shutdown(minfo);
1950 	mga_iounmap(minfo->video.vbase);
1951 failCtrlIO:;
1952 	mga_iounmap(minfo->mmio.vbase);
1953 failVideoMR:;
1954 	release_mem_region(video_base_phys, minfo->video.len_maximum);
1955 failCtrlMR:;
1956 	release_mem_region(ctrlptr_phys, 16384);
1957 fail:;
1958 	return err;
1959 }
1960 
1961 static LIST_HEAD(matroxfb_list);
1962 static LIST_HEAD(matroxfb_driver_list);
1963 
1964 #define matroxfb_l(x) list_entry(x, struct matrox_fb_info, next_fb)
1965 #define matroxfb_driver_l(x) list_entry(x, struct matroxfb_driver, node)
1966 int matroxfb_register_driver(struct matroxfb_driver* drv) {
1967 	struct matrox_fb_info* minfo;
1968 
1969 	list_add(&drv->node, &matroxfb_driver_list);
1970 	for (minfo = matroxfb_l(matroxfb_list.next);
1971 	     minfo != matroxfb_l(&matroxfb_list);
1972 	     minfo = matroxfb_l(minfo->next_fb.next)) {
1973 		void* p;
1974 
1975 		if (minfo->drivers_count == MATROXFB_MAX_FB_DRIVERS)
1976 			continue;
1977 		p = drv->probe(minfo);
1978 		if (p) {
1979 			minfo->drivers_data[minfo->drivers_count] = p;
1980 			minfo->drivers[minfo->drivers_count++] = drv;
1981 		}
1982 	}
1983 	return 0;
1984 }
1985 
1986 void matroxfb_unregister_driver(struct matroxfb_driver* drv) {
1987 	struct matrox_fb_info* minfo;
1988 
1989 	list_del(&drv->node);
1990 	for (minfo = matroxfb_l(matroxfb_list.next);
1991 	     minfo != matroxfb_l(&matroxfb_list);
1992 	     minfo = matroxfb_l(minfo->next_fb.next)) {
1993 		int i;
1994 
1995 		for (i = 0; i < minfo->drivers_count; ) {
1996 			if (minfo->drivers[i] == drv) {
1997 				if (drv && drv->remove)
1998 					drv->remove(minfo, minfo->drivers_data[i]);
1999 				minfo->drivers[i] = minfo->drivers[--minfo->drivers_count];
2000 				minfo->drivers_data[i] = minfo->drivers_data[minfo->drivers_count];
2001 			} else
2002 				i++;
2003 		}
2004 	}
2005 }
2006 
2007 static void matroxfb_register_device(struct matrox_fb_info* minfo) {
2008 	struct matroxfb_driver* drv;
2009 	int i = 0;
2010 	list_add(&minfo->next_fb, &matroxfb_list);
2011 	for (drv = matroxfb_driver_l(matroxfb_driver_list.next);
2012 	     drv != matroxfb_driver_l(&matroxfb_driver_list);
2013 	     drv = matroxfb_driver_l(drv->node.next)) {
2014 		if (drv && drv->probe) {
2015 			void *p = drv->probe(minfo);
2016 			if (p) {
2017 				minfo->drivers_data[i] = p;
2018 				minfo->drivers[i++] = drv;
2019 				if (i == MATROXFB_MAX_FB_DRIVERS)
2020 					break;
2021 			}
2022 		}
2023 	}
2024 	minfo->drivers_count = i;
2025 }
2026 
2027 static void matroxfb_unregister_device(struct matrox_fb_info* minfo) {
2028 	int i;
2029 
2030 	list_del(&minfo->next_fb);
2031 	for (i = 0; i < minfo->drivers_count; i++) {
2032 		struct matroxfb_driver* drv = minfo->drivers[i];
2033 
2034 		if (drv && drv->remove)
2035 			drv->remove(minfo, minfo->drivers_data[i]);
2036 	}
2037 }
2038 
2039 static int matroxfb_probe(struct pci_dev* pdev, const struct pci_device_id* dummy) {
2040 	struct board* b;
2041 	u_int16_t svid;
2042 	u_int16_t sid;
2043 	struct matrox_fb_info* minfo;
2044 	int err;
2045 	u_int32_t cmd;
2046 	DBG(__func__)
2047 
2048 	svid = pdev->subsystem_vendor;
2049 	sid = pdev->subsystem_device;
2050 	for (b = dev_list; b->vendor; b++) {
2051 		if ((b->vendor != pdev->vendor) || (b->device != pdev->device) || (b->rev < pdev->revision)) continue;
2052 		if (b->svid)
2053 			if ((b->svid != svid) || (b->sid != sid)) continue;
2054 		break;
2055 	}
2056 	/* not match... */
2057 	if (!b->vendor)
2058 		return -ENODEV;
2059 	if (dev > 0) {
2060 		/* not requested one... */
2061 		dev--;
2062 		return -ENODEV;
2063 	}
2064 	pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
2065 	if (pci_enable_device(pdev)) {
2066 		return -1;
2067 	}
2068 
2069 	minfo = kzalloc(sizeof(*minfo), GFP_KERNEL);
2070 	if (!minfo)
2071 		return -1;
2072 
2073 	minfo->pcidev = pdev;
2074 	minfo->dead = 0;
2075 	minfo->usecount = 0;
2076 	minfo->userusecount = 0;
2077 
2078 	pci_set_drvdata(pdev, minfo);
2079 	/* DEVFLAGS */
2080 	minfo->devflags.memtype = memtype;
2081 	if (memtype != -1)
2082 		noinit = 0;
2083 	if (cmd & PCI_COMMAND_MEMORY) {
2084 		minfo->devflags.novga = novga;
2085 		minfo->devflags.nobios = nobios;
2086 		minfo->devflags.noinit = noinit;
2087 		/* subsequent heads always needs initialization and must not enable BIOS */
2088 		novga = 1;
2089 		nobios = 1;
2090 		noinit = 0;
2091 	} else {
2092 		minfo->devflags.novga = 1;
2093 		minfo->devflags.nobios = 1;
2094 		minfo->devflags.noinit = 0;
2095 	}
2096 
2097 	minfo->devflags.nopciretry = no_pci_retry;
2098 	minfo->devflags.mga_24bpp_fix = inv24;
2099 	minfo->devflags.precise_width = option_precise_width;
2100 	minfo->devflags.sgram = sgram;
2101 	minfo->capable.cross4MB = cross4MB;
2102 
2103 	spin_lock_init(&minfo->lock.DAC);
2104 	spin_lock_init(&minfo->lock.accel);
2105 	init_rwsem(&minfo->crtc2.lock);
2106 	init_rwsem(&minfo->altout.lock);
2107 	mutex_init(&minfo->fbcon.mm_lock);
2108 	minfo->irq_flags = 0;
2109 	init_waitqueue_head(&minfo->crtc1.vsync.wait);
2110 	init_waitqueue_head(&minfo->crtc2.vsync.wait);
2111 	minfo->crtc1.panpos = -1;
2112 
2113 	err = initMatrox2(minfo, b);
2114 	if (!err) {
2115 		matroxfb_register_device(minfo);
2116 		return 0;
2117 	}
2118 	kfree(minfo);
2119 	return -1;
2120 }
2121 
2122 static void pci_remove_matrox(struct pci_dev* pdev) {
2123 	struct matrox_fb_info* minfo;
2124 
2125 	minfo = pci_get_drvdata(pdev);
2126 	matroxfb_remove(minfo, 1);
2127 }
2128 
2129 static struct pci_device_id matroxfb_devices[] = {
2130 #ifdef CONFIG_FB_MATROX_MILLENIUM
2131 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL,
2132 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2133 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL_2,
2134 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2135 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL_2_AGP,
2136 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2137 #endif
2138 #ifdef CONFIG_FB_MATROX_MYSTIQUE
2139 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS,
2140 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2141 #endif
2142 #ifdef CONFIG_FB_MATROX_G
2143 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_MM,
2144 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2145 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_AGP,
2146 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2147 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_PCI,
2148 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2149 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,
2150 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2151 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G400,
2152 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2153 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G550,
2154 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2155 #endif
2156 	{0,			0,
2157 		0,		0,		0, 0, 0}
2158 };
2159 
2160 MODULE_DEVICE_TABLE(pci, matroxfb_devices);
2161 
2162 
2163 static struct pci_driver matroxfb_driver = {
2164 	.name =		"matroxfb",
2165 	.id_table =	matroxfb_devices,
2166 	.probe =	matroxfb_probe,
2167 	.remove =	pci_remove_matrox,
2168 };
2169 
2170 /* **************************** init-time only **************************** */
2171 
2172 #define RSResolution(X)	((X) & 0x0F)
2173 #define RS640x400	1
2174 #define RS640x480	2
2175 #define RS800x600	3
2176 #define RS1024x768	4
2177 #define RS1280x1024	5
2178 #define RS1600x1200	6
2179 #define RS768x576	7
2180 #define RS960x720	8
2181 #define RS1152x864	9
2182 #define RS1408x1056	10
2183 #define RS640x350	11
2184 #define RS1056x344	12	/* 132 x 43 text */
2185 #define RS1056x400	13	/* 132 x 50 text */
2186 #define RS1056x480	14	/* 132 x 60 text */
2187 #define RSNoxNo		15
2188 /* 10-FF */
2189 static struct { int xres, yres, left, right, upper, lower, hslen, vslen, vfreq; } timmings[] __initdata = {
2190 	{  640,  400,  48, 16, 39,  8,  96, 2, 70 },
2191 	{  640,  480,  48, 16, 33, 10,  96, 2, 60 },
2192 	{  800,  600, 144, 24, 28,  8, 112, 6, 60 },
2193 	{ 1024,  768, 160, 32, 30,  4, 128, 4, 60 },
2194 	{ 1280, 1024, 224, 32, 32,  4, 136, 4, 60 },
2195 	{ 1600, 1200, 272, 48, 32,  5, 152, 5, 60 },
2196 	{  768,  576, 144, 16, 28,  6, 112, 4, 60 },
2197 	{  960,  720, 144, 24, 28,  8, 112, 4, 60 },
2198 	{ 1152,  864, 192, 32, 30,  4, 128, 4, 60 },
2199 	{ 1408, 1056, 256, 40, 32,  5, 144, 5, 60 },
2200 	{  640,  350,  48, 16, 39,  8,  96, 2, 70 },
2201 	{ 1056,  344,  96, 24, 59, 44, 160, 2, 70 },
2202 	{ 1056,  400,  96, 24, 39,  8, 160, 2, 70 },
2203 	{ 1056,  480,  96, 24, 36, 12, 160, 3, 60 },
2204 	{    0,    0,  ~0, ~0, ~0, ~0,   0, 0,  0 }
2205 };
2206 
2207 #define RSCreate(X,Y)	((X) | ((Y) << 8))
2208 static struct { unsigned int vesa; unsigned int info; } *RSptr, vesamap[] __initdata = {
2209 /* default must be first */
2210 	{    ~0, RSCreate(RSNoxNo,     RS8bpp ) },
2211 	{ 0x101, RSCreate(RS640x480,   RS8bpp ) },
2212 	{ 0x100, RSCreate(RS640x400,   RS8bpp ) },
2213 	{ 0x180, RSCreate(RS768x576,   RS8bpp ) },
2214 	{ 0x103, RSCreate(RS800x600,   RS8bpp ) },
2215 	{ 0x188, RSCreate(RS960x720,   RS8bpp ) },
2216 	{ 0x105, RSCreate(RS1024x768,  RS8bpp ) },
2217 	{ 0x190, RSCreate(RS1152x864,  RS8bpp ) },
2218 	{ 0x107, RSCreate(RS1280x1024, RS8bpp ) },
2219 	{ 0x198, RSCreate(RS1408x1056, RS8bpp ) },
2220 	{ 0x11C, RSCreate(RS1600x1200, RS8bpp ) },
2221 	{ 0x110, RSCreate(RS640x480,   RS15bpp) },
2222 	{ 0x181, RSCreate(RS768x576,   RS15bpp) },
2223 	{ 0x113, RSCreate(RS800x600,   RS15bpp) },
2224 	{ 0x189, RSCreate(RS960x720,   RS15bpp) },
2225 	{ 0x116, RSCreate(RS1024x768,  RS15bpp) },
2226 	{ 0x191, RSCreate(RS1152x864,  RS15bpp) },
2227 	{ 0x119, RSCreate(RS1280x1024, RS15bpp) },
2228 	{ 0x199, RSCreate(RS1408x1056, RS15bpp) },
2229 	{ 0x11D, RSCreate(RS1600x1200, RS15bpp) },
2230 	{ 0x111, RSCreate(RS640x480,   RS16bpp) },
2231 	{ 0x182, RSCreate(RS768x576,   RS16bpp) },
2232 	{ 0x114, RSCreate(RS800x600,   RS16bpp) },
2233 	{ 0x18A, RSCreate(RS960x720,   RS16bpp) },
2234 	{ 0x117, RSCreate(RS1024x768,  RS16bpp) },
2235 	{ 0x192, RSCreate(RS1152x864,  RS16bpp) },
2236 	{ 0x11A, RSCreate(RS1280x1024, RS16bpp) },
2237 	{ 0x19A, RSCreate(RS1408x1056, RS16bpp) },
2238 	{ 0x11E, RSCreate(RS1600x1200, RS16bpp) },
2239 	{ 0x1B2, RSCreate(RS640x480,   RS24bpp) },
2240 	{ 0x184, RSCreate(RS768x576,   RS24bpp) },
2241 	{ 0x1B5, RSCreate(RS800x600,   RS24bpp) },
2242 	{ 0x18C, RSCreate(RS960x720,   RS24bpp) },
2243 	{ 0x1B8, RSCreate(RS1024x768,  RS24bpp) },
2244 	{ 0x194, RSCreate(RS1152x864,  RS24bpp) },
2245 	{ 0x1BB, RSCreate(RS1280x1024, RS24bpp) },
2246 	{ 0x19C, RSCreate(RS1408x1056, RS24bpp) },
2247 	{ 0x1BF, RSCreate(RS1600x1200, RS24bpp) },
2248 	{ 0x112, RSCreate(RS640x480,   RS32bpp) },
2249 	{ 0x183, RSCreate(RS768x576,   RS32bpp) },
2250 	{ 0x115, RSCreate(RS800x600,   RS32bpp) },
2251 	{ 0x18B, RSCreate(RS960x720,   RS32bpp) },
2252 	{ 0x118, RSCreate(RS1024x768,  RS32bpp) },
2253 	{ 0x193, RSCreate(RS1152x864,  RS32bpp) },
2254 	{ 0x11B, RSCreate(RS1280x1024, RS32bpp) },
2255 	{ 0x19B, RSCreate(RS1408x1056, RS32bpp) },
2256 	{ 0x11F, RSCreate(RS1600x1200, RS32bpp) },
2257 	{ 0x010, RSCreate(RS640x350,   RS4bpp ) },
2258 	{ 0x012, RSCreate(RS640x480,   RS4bpp ) },
2259 	{ 0x102, RSCreate(RS800x600,   RS4bpp ) },
2260 	{ 0x104, RSCreate(RS1024x768,  RS4bpp ) },
2261 	{ 0x106, RSCreate(RS1280x1024, RS4bpp ) },
2262 	{     0, 0				}};
2263 
2264 static void __init matroxfb_init_params(void) {
2265 	/* fh from kHz to Hz */
2266 	if (fh < 1000)
2267 		fh *= 1000;	/* 1kHz minimum */
2268 	/* maxclk */
2269 	if (maxclk < 1000) maxclk *= 1000;	/* kHz -> Hz, MHz -> kHz */
2270 	if (maxclk < 1000000) maxclk *= 1000;	/* kHz -> Hz, 1MHz minimum */
2271 	/* fix VESA number */
2272 	if (vesa != ~0)
2273 		vesa &= 0x1DFF;		/* mask out clearscreen, acceleration and so on */
2274 
2275 	/* static settings */
2276 	for (RSptr = vesamap; RSptr->vesa; RSptr++) {
2277 		if (RSptr->vesa == vesa) break;
2278 	}
2279 	if (!RSptr->vesa) {
2280 		printk(KERN_ERR "Invalid vesa mode 0x%04X\n", vesa);
2281 		RSptr = vesamap;
2282 	}
2283 	{
2284 		int res = RSResolution(RSptr->info)-1;
2285 		if (left == ~0)
2286 			left = timmings[res].left;
2287 		if (!xres)
2288 			xres = timmings[res].xres;
2289 		if (right == ~0)
2290 			right = timmings[res].right;
2291 		if (!hslen)
2292 			hslen = timmings[res].hslen;
2293 		if (upper == ~0)
2294 			upper = timmings[res].upper;
2295 		if (!yres)
2296 			yres = timmings[res].yres;
2297 		if (lower == ~0)
2298 			lower = timmings[res].lower;
2299 		if (!vslen)
2300 			vslen = timmings[res].vslen;
2301 		if (!(fv||fh||maxclk||pixclock))
2302 			fv = timmings[res].vfreq;
2303 		if (depth == -1)
2304 			depth = RSDepth(RSptr->info);
2305 	}
2306 }
2307 
2308 static int __init matrox_init(void) {
2309 	int err;
2310 
2311 	matroxfb_init_params();
2312 	err = pci_register_driver(&matroxfb_driver);
2313 	dev = -1;	/* accept all new devices... */
2314 	return err;
2315 }
2316 
2317 /* **************************** exit-time only **************************** */
2318 
2319 static void __exit matrox_done(void) {
2320 	pci_unregister_driver(&matroxfb_driver);
2321 }
2322 
2323 #ifndef MODULE
2324 
2325 /* ************************* init in-kernel code ************************** */
2326 
2327 static int __init matroxfb_setup(char *options) {
2328 	char *this_opt;
2329 
2330 	DBG(__func__)
2331 
2332 	if (!options || !*options)
2333 		return 0;
2334 
2335 	while ((this_opt = strsep(&options, ",")) != NULL) {
2336 		if (!*this_opt) continue;
2337 
2338 		dprintk("matroxfb_setup: option %s\n", this_opt);
2339 
2340 		if (!strncmp(this_opt, "dev:", 4))
2341 			dev = simple_strtoul(this_opt+4, NULL, 0);
2342 		else if (!strncmp(this_opt, "depth:", 6)) {
2343 			switch (simple_strtoul(this_opt+6, NULL, 0)) {
2344 				case 0: depth = RSText; break;
2345 				case 4: depth = RS4bpp; break;
2346 				case 8: depth = RS8bpp; break;
2347 				case 15:depth = RS15bpp; break;
2348 				case 16:depth = RS16bpp; break;
2349 				case 24:depth = RS24bpp; break;
2350 				case 32:depth = RS32bpp; break;
2351 				default:
2352 					printk(KERN_ERR "matroxfb: unsupported color depth\n");
2353 			}
2354 		} else if (!strncmp(this_opt, "xres:", 5))
2355 			xres = simple_strtoul(this_opt+5, NULL, 0);
2356 		else if (!strncmp(this_opt, "yres:", 5))
2357 			yres = simple_strtoul(this_opt+5, NULL, 0);
2358 		else if (!strncmp(this_opt, "vslen:", 6))
2359 			vslen = simple_strtoul(this_opt+6, NULL, 0);
2360 		else if (!strncmp(this_opt, "hslen:", 6))
2361 			hslen = simple_strtoul(this_opt+6, NULL, 0);
2362 		else if (!strncmp(this_opt, "left:", 5))
2363 			left = simple_strtoul(this_opt+5, NULL, 0);
2364 		else if (!strncmp(this_opt, "right:", 6))
2365 			right = simple_strtoul(this_opt+6, NULL, 0);
2366 		else if (!strncmp(this_opt, "upper:", 6))
2367 			upper = simple_strtoul(this_opt+6, NULL, 0);
2368 		else if (!strncmp(this_opt, "lower:", 6))
2369 			lower = simple_strtoul(this_opt+6, NULL, 0);
2370 		else if (!strncmp(this_opt, "pixclock:", 9))
2371 			pixclock = simple_strtoul(this_opt+9, NULL, 0);
2372 		else if (!strncmp(this_opt, "sync:", 5))
2373 			sync = simple_strtoul(this_opt+5, NULL, 0);
2374 		else if (!strncmp(this_opt, "vesa:", 5))
2375 			vesa = simple_strtoul(this_opt+5, NULL, 0);
2376 		else if (!strncmp(this_opt, "maxclk:", 7))
2377 			maxclk = simple_strtoul(this_opt+7, NULL, 0);
2378 		else if (!strncmp(this_opt, "fh:", 3))
2379 			fh = simple_strtoul(this_opt+3, NULL, 0);
2380 		else if (!strncmp(this_opt, "fv:", 3))
2381 			fv = simple_strtoul(this_opt+3, NULL, 0);
2382 		else if (!strncmp(this_opt, "mem:", 4))
2383 			mem = simple_strtoul(this_opt+4, NULL, 0);
2384 		else if (!strncmp(this_opt, "mode:", 5))
2385 			strlcpy(videomode, this_opt+5, sizeof(videomode));
2386 		else if (!strncmp(this_opt, "outputs:", 8))
2387 			strlcpy(outputs, this_opt+8, sizeof(outputs));
2388 		else if (!strncmp(this_opt, "dfp:", 4)) {
2389 			dfp_type = simple_strtoul(this_opt+4, NULL, 0);
2390 			dfp = 1;
2391 		}
2392 #ifdef CONFIG_PPC_PMAC
2393 		else if (!strncmp(this_opt, "vmode:", 6)) {
2394 			unsigned int vmode = simple_strtoul(this_opt+6, NULL, 0);
2395 			if (vmode > 0 && vmode <= VMODE_MAX)
2396 				default_vmode = vmode;
2397 		} else if (!strncmp(this_opt, "cmode:", 6)) {
2398 			unsigned int cmode = simple_strtoul(this_opt+6, NULL, 0);
2399 			switch (cmode) {
2400 				case 0:
2401 				case 8:
2402 					default_cmode = CMODE_8;
2403 					break;
2404 				case 15:
2405 				case 16:
2406 					default_cmode = CMODE_16;
2407 					break;
2408 				case 24:
2409 				case 32:
2410 					default_cmode = CMODE_32;
2411 					break;
2412 			}
2413 		}
2414 #endif
2415 		else if (!strcmp(this_opt, "disabled"))	/* nodisabled does not exist */
2416 			disabled = 1;
2417 		else if (!strcmp(this_opt, "enabled"))	/* noenabled does not exist */
2418 			disabled = 0;
2419 		else if (!strcmp(this_opt, "sgram"))	/* nosgram == sdram */
2420 			sgram = 1;
2421 		else if (!strcmp(this_opt, "sdram"))
2422 			sgram = 0;
2423 		else if (!strncmp(this_opt, "memtype:", 8))
2424 			memtype = simple_strtoul(this_opt+8, NULL, 0);
2425 		else {
2426 			int value = 1;
2427 
2428 			if (!strncmp(this_opt, "no", 2)) {
2429 				value = 0;
2430 				this_opt += 2;
2431 			}
2432 			if (! strcmp(this_opt, "inverse"))
2433 				inverse = value;
2434 			else if (!strcmp(this_opt, "accel"))
2435 				noaccel = !value;
2436 			else if (!strcmp(this_opt, "pan"))
2437 				nopan = !value;
2438 			else if (!strcmp(this_opt, "pciretry"))
2439 				no_pci_retry = !value;
2440 			else if (!strcmp(this_opt, "vga"))
2441 				novga = !value;
2442 			else if (!strcmp(this_opt, "bios"))
2443 				nobios = !value;
2444 			else if (!strcmp(this_opt, "init"))
2445 				noinit = !value;
2446 #ifdef CONFIG_MTRR
2447 			else if (!strcmp(this_opt, "mtrr"))
2448 				mtrr = value;
2449 #endif
2450 			else if (!strcmp(this_opt, "inv24"))
2451 				inv24 = value;
2452 			else if (!strcmp(this_opt, "cross4MB"))
2453 				cross4MB = value;
2454 			else if (!strcmp(this_opt, "grayscale"))
2455 				grayscale = value;
2456 			else if (!strcmp(this_opt, "dfp"))
2457 				dfp = value;
2458 			else {
2459 				strlcpy(videomode, this_opt, sizeof(videomode));
2460 			}
2461 		}
2462 	}
2463 	return 0;
2464 }
2465 
2466 static int __initdata initialized = 0;
2467 
2468 static int __init matroxfb_init(void)
2469 {
2470 	char *option = NULL;
2471 	int err = 0;
2472 
2473 	DBG(__func__)
2474 
2475 	if (fb_get_options("matroxfb", &option))
2476 		return -ENODEV;
2477 	matroxfb_setup(option);
2478 
2479 	if (disabled)
2480 		return -ENXIO;
2481 	if (!initialized) {
2482 		initialized = 1;
2483 		err = matrox_init();
2484 	}
2485 	hotplug = 1;
2486 	/* never return failure, user can hotplug matrox later... */
2487 	return err;
2488 }
2489 
2490 module_init(matroxfb_init);
2491 
2492 #else
2493 
2494 /* *************************** init module code **************************** */
2495 
2496 MODULE_AUTHOR("(c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>");
2497 MODULE_DESCRIPTION("Accelerated FBDev driver for Matrox Millennium/Mystique/G100/G200/G400/G450/G550");
2498 MODULE_LICENSE("GPL");
2499 
2500 module_param(mem, int, 0);
2501 MODULE_PARM_DESC(mem, "Size of available memory in MB, KB or B (2,4,8,12,16MB, default=autodetect)");
2502 module_param(disabled, int, 0);
2503 MODULE_PARM_DESC(disabled, "Disabled (0 or 1=disabled) (default=0)");
2504 module_param(noaccel, int, 0);
2505 MODULE_PARM_DESC(noaccel, "Do not use accelerating engine (0 or 1=disabled) (default=0)");
2506 module_param(nopan, int, 0);
2507 MODULE_PARM_DESC(nopan, "Disable pan on startup (0 or 1=disabled) (default=0)");
2508 module_param(no_pci_retry, int, 0);
2509 MODULE_PARM_DESC(no_pci_retry, "PCI retries enabled (0 or 1=disabled) (default=0)");
2510 module_param(novga, int, 0);
2511 MODULE_PARM_DESC(novga, "VGA I/O (0x3C0-0x3DF) disabled (0 or 1=disabled) (default=0)");
2512 module_param(nobios, int, 0);
2513 MODULE_PARM_DESC(nobios, "Disables ROM BIOS (0 or 1=disabled) (default=do not change BIOS state)");
2514 module_param(noinit, int, 0);
2515 MODULE_PARM_DESC(noinit, "Disables W/SG/SD-RAM and bus interface initialization (0 or 1=do not initialize) (default=0)");
2516 module_param(memtype, int, 0);
2517 MODULE_PARM_DESC(memtype, "Memory type for G200/G400 (see Documentation/fb/matroxfb.txt for explanation) (default=3 for G200, 0 for G400)");
2518 #ifdef CONFIG_MTRR
2519 module_param(mtrr, int, 0);
2520 MODULE_PARM_DESC(mtrr, "This speeds up video memory accesses (0=disabled or 1) (default=1)");
2521 #endif
2522 module_param(sgram, int, 0);
2523 MODULE_PARM_DESC(sgram, "Indicates that G100/G200/G400 has SGRAM memory (0=SDRAM, 1=SGRAM) (default=0)");
2524 module_param(inv24, int, 0);
2525 MODULE_PARM_DESC(inv24, "Inverts clock polarity for 24bpp and loop frequency > 100MHz (default=do not invert polarity)");
2526 module_param(inverse, int, 0);
2527 MODULE_PARM_DESC(inverse, "Inverse (0 or 1) (default=0)");
2528 module_param(dev, int, 0);
2529 MODULE_PARM_DESC(dev, "Multihead support, attach to device ID (0..N) (default=all working)");
2530 module_param(vesa, int, 0);
2531 MODULE_PARM_DESC(vesa, "Startup videomode (0x000-0x1FF) (default=0x101)");
2532 module_param(xres, int, 0);
2533 MODULE_PARM_DESC(xres, "Horizontal resolution (px), overrides xres from vesa (default=vesa)");
2534 module_param(yres, int, 0);
2535 MODULE_PARM_DESC(yres, "Vertical resolution (scans), overrides yres from vesa (default=vesa)");
2536 module_param(upper, int, 0);
2537 MODULE_PARM_DESC(upper, "Upper blank space (scans), overrides upper from vesa (default=vesa)");
2538 module_param(lower, int, 0);
2539 MODULE_PARM_DESC(lower, "Lower blank space (scans), overrides lower from vesa (default=vesa)");
2540 module_param(vslen, int, 0);
2541 MODULE_PARM_DESC(vslen, "Vertical sync length (scans), overrides lower from vesa (default=vesa)");
2542 module_param(left, int, 0);
2543 MODULE_PARM_DESC(left, "Left blank space (px), overrides left from vesa (default=vesa)");
2544 module_param(right, int, 0);
2545 MODULE_PARM_DESC(right, "Right blank space (px), overrides right from vesa (default=vesa)");
2546 module_param(hslen, int, 0);
2547 MODULE_PARM_DESC(hslen, "Horizontal sync length (px), overrides hslen from vesa (default=vesa)");
2548 module_param(pixclock, int, 0);
2549 MODULE_PARM_DESC(pixclock, "Pixelclock (ns), overrides pixclock from vesa (default=vesa)");
2550 module_param(sync, int, 0);
2551 MODULE_PARM_DESC(sync, "Sync polarity, overrides sync from vesa (default=vesa)");
2552 module_param(depth, int, 0);
2553 MODULE_PARM_DESC(depth, "Color depth (0=text,8,15,16,24,32) (default=vesa)");
2554 module_param(maxclk, int, 0);
2555 MODULE_PARM_DESC(maxclk, "Startup maximal clock, 0-999MHz, 1000-999999kHz, 1000000-INF Hz");
2556 module_param(fh, int, 0);
2557 MODULE_PARM_DESC(fh, "Startup horizontal frequency, 0-999kHz, 1000-INF Hz");
2558 module_param(fv, int, 0);
2559 MODULE_PARM_DESC(fv, "Startup vertical frequency, 0-INF Hz\n"
2560 "You should specify \"fv:max_monitor_vsync,fh:max_monitor_hsync,maxclk:max_monitor_dotclock\"");
2561 module_param(grayscale, int, 0);
2562 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)");
2563 module_param(cross4MB, int, 0);
2564 MODULE_PARM_DESC(cross4MB, "Specifies that 4MB boundary can be in middle of line. (default=autodetected)");
2565 module_param(dfp, int, 0);
2566 MODULE_PARM_DESC(dfp, "Specifies whether to use digital flat panel interface of G200/G400 (0 or 1) (default=0)");
2567 module_param(dfp_type, int, 0);
2568 MODULE_PARM_DESC(dfp_type, "Specifies DFP interface type (0 to 255) (default=read from hardware)");
2569 module_param_string(outputs, outputs, sizeof(outputs), 0);
2570 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)");
2571 #ifdef CONFIG_PPC_PMAC
2572 module_param_named(vmode, default_vmode, int, 0);
2573 MODULE_PARM_DESC(vmode, "Specify the vmode mode number that should be used (640x480 default)");
2574 module_param_named(cmode, default_cmode, int, 0);
2575 MODULE_PARM_DESC(cmode, "Specify the video depth that should be used (8bit default)");
2576 #endif
2577 
2578 int __init init_module(void){
2579 
2580 	DBG(__func__)
2581 
2582 	if (disabled)
2583 		return -ENXIO;
2584 
2585 	if (depth == 0)
2586 		depth = RSText;
2587 	else if (depth == 4)
2588 		depth = RS4bpp;
2589 	else if (depth == 8)
2590 		depth = RS8bpp;
2591 	else if (depth == 15)
2592 		depth = RS15bpp;
2593 	else if (depth == 16)
2594 		depth = RS16bpp;
2595 	else if (depth == 24)
2596 		depth = RS24bpp;
2597 	else if (depth == 32)
2598 		depth = RS32bpp;
2599 	else if (depth != -1) {
2600 		printk(KERN_ERR "matroxfb: depth %d is not supported, using default\n", depth);
2601 		depth = -1;
2602 	}
2603 	matrox_init();
2604 	/* never return failure; user can hotplug matrox later... */
2605 	return 0;
2606 }
2607 #endif	/* MODULE */
2608 
2609 module_exit(matrox_done);
2610 EXPORT_SYMBOL(matroxfb_register_driver);
2611 EXPORT_SYMBOL(matroxfb_unregister_driver);
2612 EXPORT_SYMBOL(matroxfb_wait_for_sync);
2613 EXPORT_SYMBOL(matroxfb_enable_irq);
2614 
2615 /*
2616  * Overrides for Emacs so that we follow Linus's tabbing style.
2617  * ---------------------------------------------------------------------------
2618  * Local variables:
2619  * c-basic-offset: 8
2620  * End:
2621  */
2622 
2623