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: 1.64 2002/06/10
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 writting this driver)
97  *
98  *		 FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
99  *
100  */
101 
102 /* make checkconfig does not check included files... */
103 #include <linux/config.h>
104 
105 #include "matroxfb_base.h"
106 #include "matroxfb_misc.h"
107 #include "matroxfb_accel.h"
108 #include "matroxfb_DAC1064.h"
109 #include "matroxfb_Ti3026.h"
110 #include "matroxfb_maven.h"
111 #include "matroxfb_crtc2.h"
112 #include "matroxfb_g450.h"
113 #include <linux/matroxfb.h>
114 #include <asm/uaccess.h>
115 
116 #ifdef CONFIG_PPC
117 unsigned char nvram_read_byte(int);
118 static int default_vmode = VMODE_NVRAM;
119 static int default_cmode = CMODE_NVRAM;
120 #endif
121 
122 static void matroxfb_unregister_device(struct matrox_fb_info* minfo);
123 
124 /* --------------------------------------------------------------------- */
125 
126 /*
127  * card parameters
128  */
129 
130 /* --------------------------------------------------------------------- */
131 
132 static struct fb_var_screeninfo vesafb_defined = {
133 	640,480,640,480,/* W,H, W, H (virtual) load xres,xres_virtual*/
134 	0,0,		/* virtual -> visible no offset */
135 	8,		/* depth -> load bits_per_pixel */
136 	0,		/* greyscale ? */
137 	{0,0,0},	/* R */
138 	{0,0,0},	/* G */
139 	{0,0,0},	/* B */
140 	{0,0,0},	/* transparency */
141 	0,		/* standard pixel format */
142 	FB_ACTIVATE_NOW,
143 	-1,-1,
144 	FB_ACCELF_TEXT,	/* accel flags */
145 	39721L,48L,16L,33L,10L,
146 	96L,2L,~0,	/* No sync info */
147 	FB_VMODE_NONINTERLACED,
148 	{0,0,0,0,0,0}
149 };
150 
151 
152 
153 /* --------------------------------------------------------------------- */
154 
matroxfb_crtc1_panpos(WPMINFO2)155 static void matroxfb_crtc1_panpos(WPMINFO2) {
156 	if (ACCESS_FBINFO(crtc1.panpos) >= 0) {
157 		unsigned long flags;
158 		int panpos;
159 
160 		matroxfb_DAC_lock_irqsave(flags);
161 		panpos = ACCESS_FBINFO(crtc1.panpos);
162 		if (panpos >= 0) {
163 			unsigned int extvga_reg;
164 
165 			ACCESS_FBINFO(crtc1.panpos) = -1; /* No update pending anymore */
166 			extvga_reg = mga_inb(M_EXTVGA_INDEX);
167 			mga_setr(M_EXTVGA_INDEX, 0x00, panpos);
168 			if (extvga_reg != 0x00) {
169 				mga_outb(M_EXTVGA_INDEX, extvga_reg);
170 			}
171 		}
172 		matroxfb_DAC_unlock_irqrestore(flags);
173 	}
174 }
175 
matrox_irq(int irq,void * dev_id,struct pt_regs * fp)176 static void matrox_irq(int irq, void *dev_id, struct pt_regs *fp)
177 {
178 	u_int32_t status;
179 	int handled = 0;
180 
181 	MINFO_FROM(dev_id);
182 
183 	status = mga_inl(M_STATUS);
184 
185 	if (status & 0x20) {
186 		mga_outl(M_ICLEAR, 0x20);
187 		ACCESS_FBINFO(crtc1.vsync.cnt)++;
188 		matroxfb_crtc1_panpos(PMINFO2);
189 		wake_up_interruptible(&ACCESS_FBINFO(crtc1.vsync.wait));
190 		handled = 1;
191 	}
192 	if (status & 0x200) {
193 		mga_outl(M_ICLEAR, 0x200);
194 		ACCESS_FBINFO(crtc2.vsync.cnt)++;
195 		wake_up_interruptible(&ACCESS_FBINFO(crtc2.vsync.wait));
196 		handled = 1;
197 	}
198 	return;
199 }
200 
matroxfb_enable_irq(WPMINFO int reenable)201 int matroxfb_enable_irq(WPMINFO int reenable) {
202 	u_int32_t bm;
203 
204 	if (ACCESS_FBINFO(devflags.accelerator) == FB_ACCEL_MATROX_MGAG400)
205 		bm = 0x220;
206 	else
207 		bm = 0x020;
208 
209 	if (!test_and_set_bit(0, &ACCESS_FBINFO(irq_flags))) {
210 		if (request_irq(ACCESS_FBINFO(pcidev)->irq, matrox_irq,
211 				SA_SHIRQ, "matroxfb", MINFO)) {
212 			clear_bit(0, &ACCESS_FBINFO(irq_flags));
213 			return -EINVAL;
214 		}
215 		/* Clear any pending field interrupts */
216 		mga_outl(M_ICLEAR, bm);
217 		mga_outl(M_IEN, mga_inl(M_IEN) | bm);
218 	} else if (reenable) {
219 		u_int32_t ien;
220 
221 		ien = mga_inl(M_IEN);
222 		if ((ien & bm) != bm) {
223 			printk(KERN_DEBUG "matroxfb: someone disabled IRQ [%08X]\n", ien);
224 			mga_outl(M_IEN, ien | bm);
225 		}
226 	}
227 	return 0;
228 }
229 
matroxfb_disable_irq(WPMINFO2)230 static void matroxfb_disable_irq(WPMINFO2) {
231 	if (test_and_clear_bit(0, &ACCESS_FBINFO(irq_flags))) {
232 		/* Flush pending pan-at-vbl request... */
233 		matroxfb_crtc1_panpos(PMINFO2);
234 		if (ACCESS_FBINFO(devflags.accelerator) == FB_ACCEL_MATROX_MGAG400)
235 			mga_outl(M_IEN, mga_inl(M_IEN) & ~0x220);
236 		else
237 			mga_outl(M_IEN, mga_inl(M_IEN) & ~0x20);
238 		free_irq(ACCESS_FBINFO(pcidev)->irq, MINFO);
239 	}
240 }
241 
242 #ifndef wait_event_interruptible_timeout
243 #define __wait_event_interruptible_timeout(wq, condition, ret)		\
244 do {									\
245 	wait_queue_t __wait;						\
246 	init_waitqueue_entry(&__wait, current);				\
247 									\
248 	add_wait_queue(&wq, &__wait);					\
249 	for (;;) {							\
250 		set_current_state(TASK_INTERRUPTIBLE);			\
251 		if (condition)						\
252 			break;						\
253 		if (!signal_pending(current)) {				\
254 			ret = schedule_timeout(ret);			\
255 			if (!ret)					\
256 				break;					\
257 			continue;					\
258 		}							\
259 		ret = -ERESTARTSYS;					\
260 		break;							\
261 	}								\
262 	current->state = TASK_RUNNING;					\
263 	remove_wait_queue(&wq, &__wait);				\
264 } while (0)
265 
266 #define wait_event_interruptible_timeout(wq, condition, timeout)	\
267 ({									\
268 	long __ret = timeout;						\
269 	if (!(condition))						\
270 		__wait_event_interruptible_timeout(wq, condition, __ret); \
271 	__ret;								\
272 })
273 #endif
274 
matroxfb_wait_for_sync(WPMINFO u_int32_t crtc)275 int matroxfb_wait_for_sync(WPMINFO u_int32_t crtc) {
276 	wait_queue_t __wait;
277 	struct matrox_vsync *vs;
278 	unsigned int cnt;
279 	int ret;
280 
281 	switch (crtc) {
282 		case 0:
283 			vs = &ACCESS_FBINFO(crtc1.vsync);
284 			break;
285 		case 1:
286 			if (ACCESS_FBINFO(devflags.accelerator) != FB_ACCEL_MATROX_MGAG400) {
287 				return -ENODEV;
288 			}
289 			vs = &ACCESS_FBINFO(crtc2.vsync);
290 			break;
291 		default:
292 			return -ENODEV;
293 	}
294 	ret = matroxfb_enable_irq(PMINFO 0);
295 	if (ret) {
296 		return ret;
297 	}
298         init_waitqueue_entry(&__wait, current);
299 
300 	cnt = vs->cnt;
301 	ret = wait_event_interruptible_timeout(vs->wait, cnt != vs->cnt, HZ/10);
302 	if (ret < 0) {
303 		return ret;
304 	}
305 	if (ret == 0) {
306 		matroxfb_enable_irq(PMINFO 1);
307 		return -ETIMEDOUT;
308 	}
309 	return 0;
310 }
311 
312 /* --------------------------------------------------------------------- */
313 
matrox_pan_var(WPMINFO struct fb_var_screeninfo * var)314 static void matrox_pan_var(WPMINFO struct fb_var_screeninfo *var) {
315 	unsigned int pos;
316 	unsigned short p0, p1, p2;
317 #ifdef CONFIG_FB_MATROX_32MB
318 	unsigned int p3;
319 #endif
320 	struct display *disp;
321 	int vbl;
322 	unsigned long flags;
323 	CRITFLAGS
324 
325 	DBG("matrox_pan_var")
326 
327 	if (ACCESS_FBINFO(dead))
328 		return;
329 
330 	disp = ACCESS_FBINFO(currcon_display);
331 	if (disp->type == FB_TYPE_TEXT) {
332 		pos = var->yoffset / fontheight(disp) * disp->next_line / ACCESS_FBINFO(devflags.textstep) + var->xoffset / (fontwidth(disp)?fontwidth(disp):8);
333 	} else {
334 		pos = (var->yoffset * var->xres_virtual + var->xoffset) * ACCESS_FBINFO(curr.final_bppShift) / 32;
335 		pos += ACCESS_FBINFO(curr.ydstorg.chunks);
336 	}
337 	p0 = ACCESS_FBINFO(hw).CRTC[0x0D] = pos & 0xFF;
338 	p1 = ACCESS_FBINFO(hw).CRTC[0x0C] = (pos & 0xFF00) >> 8;
339 	p2 = ACCESS_FBINFO(hw).CRTCEXT[0] = (ACCESS_FBINFO(hw).CRTCEXT[0] & 0xB0) | ((pos >> 16) & 0x0F) | ((pos >> 14) & 0x40);
340 #ifdef CONFIG_FB_MATROX_32MB
341 	p3 = ACCESS_FBINFO(hw).CRTCEXT[8] = pos >> 21;
342 #endif
343 
344 	/* FB_ACTIVATE_VBL and we can acquire interrupts? Honor FB_ACTIVATE_VBL then... */
345 	vbl = (var->activate & FB_ACTIVATE_VBL) && (matroxfb_enable_irq(PMINFO 0) == 0);
346 
347 	CRITBEGIN
348 
349 	matroxfb_DAC_lock_irqsave(flags);
350 
351 	mga_setr(M_CRTC_INDEX, 0x0D, p0);
352 	mga_setr(M_CRTC_INDEX, 0x0C, p1);
353 #ifdef CONFIG_FB_MATROX_32MB
354 	if (ACCESS_FBINFO(devflags.support32MB))
355 		mga_setr(M_EXTVGA_INDEX, 0x08, p3);
356 #endif
357 	if (vbl) {
358 		ACCESS_FBINFO(crtc1.panpos) = p2;
359 	} else {
360 		/* Abort any pending change */
361 		ACCESS_FBINFO(crtc1.panpos) = -1;
362 		mga_setr(M_EXTVGA_INDEX, 0x00, p2);
363 	}
364 	matroxfb_DAC_unlock_irqrestore(flags);
365 
366 	CRITEND
367 }
368 
matroxfb_remove(WPMINFO int dummy)369 static void matroxfb_remove(WPMINFO int dummy) {
370 	/* Currently we are holding big kernel lock on all dead & usecount updates.
371 	 * Destroy everything after all users release it. Especially do not unregister
372 	 * framebuffer and iounmap memory, neither fbmem nor fbcon-cfb* does not check
373 	 * for device unplugged when in use.
374 	 * In future we should point mmio.vbase & video.vbase somewhere where we can
375 	 * write data without causing too much damage...
376 	 */
377 
378 	ACCESS_FBINFO(dead) = 1;
379 	if (ACCESS_FBINFO(usecount)) {
380 		/* destroy it later */
381 		return;
382 	}
383 	matroxfb_unregister_device(MINFO);
384 	unregister_framebuffer(&ACCESS_FBINFO(fbcon));
385 	matroxfb_g450_shutdown(PMINFO2);
386 	del_timer_sync(&ACCESS_FBINFO(cursor.timer));
387 #ifdef CONFIG_MTRR
388 	if (ACCESS_FBINFO(mtrr.vram_valid))
389 		mtrr_del(ACCESS_FBINFO(mtrr.vram), ACCESS_FBINFO(video.base), ACCESS_FBINFO(video.len));
390 #endif
391 	mga_iounmap(ACCESS_FBINFO(mmio.vbase));
392 	mga_iounmap(ACCESS_FBINFO(video.vbase));
393 	release_mem_region(ACCESS_FBINFO(video.base), ACCESS_FBINFO(video.len_maximum));
394 	release_mem_region(ACCESS_FBINFO(mmio.base), 16384);
395 #ifdef CONFIG_FB_MATROX_MULTIHEAD
396 	kfree(ACCESS_FBINFO(fbcon.disp));
397 	kfree(minfo);
398 #endif
399 }
400 
401 	/*
402 	 * Open/Release the frame buffer device
403 	 */
404 
matroxfb_open(struct fb_info * info,int user)405 static int matroxfb_open(struct fb_info *info, int user)
406 {
407 	MINFO_FROM_INFO(info);
408 
409 	DBG_LOOP(__FUNCTION__)
410 
411  	if (ACCESS_FBINFO(dead)) {
412  		return -ENXIO;
413  	}
414  	ACCESS_FBINFO(usecount)++;
415 	if (user) {
416 		ACCESS_FBINFO(userusecount)++;
417 	}
418 	return 0;
419 }
420 
matroxfb_release(struct fb_info * info,int user)421 static int matroxfb_release(struct fb_info *info, int user)
422 {
423 	MINFO_FROM_INFO(info);
424 
425 	DBG_LOOP(__FUNCTION__)
426 
427 	if (user) {
428 		if (0 == --ACCESS_FBINFO(userusecount)) {
429 			matroxfb_disable_irq(PMINFO2);
430 		}
431 	}
432 	if (!(--ACCESS_FBINFO(usecount)) && ACCESS_FBINFO(dead)) {
433 		matroxfb_remove(PMINFO 0);
434 	}
435 	return 0;
436 }
437 
matroxfb_pan_display(struct fb_var_screeninfo * var,int con,struct fb_info * info)438 static int matroxfb_pan_display(struct fb_var_screeninfo *var, int con,
439 		struct fb_info* info) {
440 	struct display* dsp;
441 	MINFO_FROM_INFO(info);
442 	DBG("matroxfb_pan_display")
443 
444 	if (con < 0) {
445 		dsp = info->disp;
446 	} else {
447 		dsp = fb_display + con;
448 	}
449 	if (var->vmode & FB_VMODE_YWRAP) {
450 		return -EINVAL;
451 	} else {
452 		if (var->xoffset+dsp->var.xres > dsp->var.xres_virtual ||
453 		    var->yoffset+dsp->var.yres > dsp->var.yres_virtual)
454 			return -EINVAL;
455 	}
456 	if (con == ACCESS_FBINFO(currcon))
457 		matrox_pan_var(PMINFO var);
458 	dsp->var.xoffset = var->xoffset;
459 	dsp->var.yoffset = var->yoffset;
460 	dsp->var.vmode &= ~FB_VMODE_YWRAP;
461 	return 0;
462 }
463 
matroxfb_updatevar(int con,struct fb_info * info)464 static int matroxfb_updatevar(int con, struct fb_info *info)
465 {
466 #define minfo (list_entry(info, struct matrox_fb_info, fbcon))
467 	DBG("matroxfb_updatevar");
468 
469 	matrox_pan_var(PMINFO &fb_display[con].var);
470 	return 0;
471 #undef minfo
472 }
473 
matroxfb_get_final_bppShift(CPMINFO int bpp)474 static int matroxfb_get_final_bppShift(CPMINFO int bpp) {
475 	int bppshft2;
476 
477 	DBG("matroxfb_get_final_bppShift")
478 
479 	bppshft2 = bpp;
480 	if (!bppshft2) {
481 		return 8;
482 	}
483 	if (isInterleave(MINFO))
484 		bppshft2 >>= 1;
485 	if (ACCESS_FBINFO(devflags.video64bits))
486 		bppshft2 >>= 1;
487 	return bppshft2;
488 }
489 
matroxfb_test_and_set_rounding(CPMINFO int xres,int bpp)490 static int matroxfb_test_and_set_rounding(CPMINFO int xres, int bpp) {
491 	int over;
492 	int rounding;
493 
494 	DBG("matroxfb_test_and_set_rounding")
495 
496 	switch (bpp) {
497 		case 0:		return xres;
498 		case 4:		rounding = 128;
499 				break;
500 		case 8:		rounding = 64;	/* doc says 64; 32 is OK for G400 */
501 				break;
502 		case 16:	rounding = 32;
503 				break;
504 		case 24:	rounding = 64;	/* doc says 64; 32 is OK for G400 */
505 				break;
506 		default:	rounding = 16;
507 				/* on G400, 16 really does not work */
508 				if (ACCESS_FBINFO(devflags.accelerator) == FB_ACCEL_MATROX_MGAG400)
509 					rounding = 32;
510 				break;
511 	}
512 	if (isInterleave(MINFO)) {
513 		rounding *= 2;
514 	}
515 	over = xres % rounding;
516 	if (over)
517 		xres += rounding-over;
518 	return xres;
519 }
520 
matroxfb_pitch_adjust(CPMINFO int xres,int bpp)521 static int matroxfb_pitch_adjust(CPMINFO int xres, int bpp) {
522 	const int* width;
523 	int xres_new;
524 
525 	DBG("matroxfb_pitch_adjust")
526 
527 	if (!bpp) return xres;
528 
529 	width = ACCESS_FBINFO(capable.vxres);
530 
531 	if (ACCESS_FBINFO(devflags.precise_width)) {
532 		while (*width) {
533 			if ((*width >= xres) && (matroxfb_test_and_set_rounding(PMINFO *width, bpp) == *width)) {
534 				break;
535 			}
536 			width++;
537 		}
538 		xres_new = *width;
539 	} else {
540 		xres_new = matroxfb_test_and_set_rounding(PMINFO xres, bpp);
541 	}
542 	if (!xres_new) return 0;
543 	if (xres != xres_new) {
544 		printk(KERN_INFO "matroxfb: cannot set xres to %d, rounded up to %d\n", xres, xres_new);
545 	}
546 	return xres_new;
547 }
548 
matroxfb_get_cmap_len(struct fb_var_screeninfo * var)549 static int matroxfb_get_cmap_len(struct fb_var_screeninfo *var) {
550 
551 	DBG("matroxfb_get_cmap_len")
552 
553 	switch (var->bits_per_pixel) {
554 #ifdef FBCON_HAS_VGATEXT
555 		case 0:
556 			return 16;	/* pseudocolor... 16 entries HW palette */
557 #endif
558 #ifdef FBCON_HAS_CFB4
559 		case 4:
560 			return 16;	/* pseudocolor... 16 entries HW palette */
561 #endif
562 #ifdef FBCON_HAS_CFB8
563 		case 8:
564 			return 256;	/* pseudocolor... 256 entries HW palette */
565 #endif
566 #ifdef FBCON_HAS_CFB16
567 		case 16:
568 			return 16;	/* directcolor... 16 entries SW palette */
569 					/* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
570 #endif
571 #ifdef FBCON_HAS_CFB24
572 		case 24:
573 			return 16;	/* directcolor... 16 entries SW palette */
574 					/* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
575 #endif
576 #ifdef FBCON_HAS_CFB32
577 		case 32:
578 			return 16;	/* directcolor... 16 entries SW palette */
579 					/* Mystique: truecolor, 16 entries SW palette, HW palette hardwired into 1:1 mapping */
580 #endif
581 	}
582 	return 16;	/* return something reasonable... or panic()? */
583 }
584 
matroxfb_decode_var(CPMINFO struct display * p,struct fb_var_screeninfo * var,int * visual,int * video_cmap_len,unsigned int * ydstorg)585 static int matroxfb_decode_var(CPMINFO struct display* p, struct fb_var_screeninfo *var, int *visual, int *video_cmap_len, unsigned int* ydstorg) {
586 	struct RGBT {
587 		unsigned char bpp;
588 		struct {
589 			unsigned char offset,
590 				      length;
591 		} red,
592 		  green,
593 		  blue,
594 		  transp;
595 		signed char visual;
596 	};
597 	static const struct RGBT table[]= {
598 #if defined FBCON_HAS_VGATEXT
599 		{ 0,{ 0,6},{0,6},{0,6},{ 0,0},MX_VISUAL_PSEUDOCOLOR},
600 #endif
601 #if defined FBCON_HAS_CFB4 || defined FBCON_HAS_CFB8
602 		{ 8,{ 0,8},{0,8},{0,8},{ 0,0},MX_VISUAL_PSEUDOCOLOR},
603 #endif
604 #if defined FBCON_HAS_CFB16
605 		{15,{10,5},{5,5},{0,5},{15,1},MX_VISUAL_DIRECTCOLOR},
606 		{16,{11,5},{5,6},{0,5},{ 0,0},MX_VISUAL_DIRECTCOLOR},
607 #endif
608 #if defined FBCON_HAS_CFB24
609 		{24,{16,8},{8,8},{0,8},{ 0,0},MX_VISUAL_DIRECTCOLOR},
610 #endif
611 #if defined FBCON_HAS_CFB32
612 		{32,{16,8},{8,8},{0,8},{24,8},MX_VISUAL_DIRECTCOLOR}
613 #endif
614 	};
615 	struct RGBT const *rgbt;
616 	unsigned int bpp = var->bits_per_pixel;
617 	unsigned int vramlen;
618 	unsigned int memlen;
619 
620 	DBG("matroxfb_decode_var")
621 
622 	switch (bpp) {
623 #ifdef FBCON_HAS_VGATEXT
624 		case 0:	 if (!ACCESS_FBINFO(capable.text)) return -EINVAL;
625 			 break;
626 #endif
627 #ifdef FBCON_HAS_CFB4
628 		case 4:	 if (!ACCESS_FBINFO(capable.cfb4)) return -EINVAL;
629 			 break;
630 #endif
631 #ifdef FBCON_HAS_CFB8
632 		case 8:	 break;
633 #endif
634 #ifdef FBCON_HAS_CFB16
635 		case 16: break;
636 #endif
637 #ifdef FBCON_HAS_CFB24
638 		case 24: break;
639 #endif
640 #ifdef FBCON_HAS_CFB32
641 		case 32: break;
642 #endif
643 		default: return -EINVAL;
644 	}
645 	*ydstorg = 0;
646 	vramlen = ACCESS_FBINFO(video.len_usable);
647 	if (var->yres_virtual < var->yres)
648 		var->yres_virtual = var->yres;
649 	if (var->xres_virtual < var->xres)
650 		var->xres_virtual = var->xres;
651 	if (bpp) {
652 		var->xres_virtual = matroxfb_pitch_adjust(PMINFO var->xres_virtual, bpp);
653 		memlen = var->xres_virtual * bpp * var->yres_virtual / 8;
654 		if (memlen > vramlen) {
655 			var->yres_virtual = vramlen * 8 / (var->xres_virtual * bpp);
656 			memlen = var->xres_virtual * bpp * var->yres_virtual / 8;
657 		}
658 		/* There is hardware bug that no line can cross 4MB boundary */
659 		/* give up for CFB24, it is impossible to easy workaround it */
660 		/* for other try to do something */
661 		if (!ACCESS_FBINFO(capable.cross4MB) && (memlen > 0x400000)) {
662 			if (bpp == 24) {
663 				/* sorry */
664 			} else {
665 				unsigned int linelen;
666 				unsigned int m1 = linelen = var->xres_virtual * bpp / 8;
667 				unsigned int m2 = PAGE_SIZE;	/* or 128 if you do not need PAGE ALIGNED address */
668 				unsigned int max_yres;
669 
670 				while (m1) {
671 					int t;
672 
673 					while (m2 >= m1) m2 -= m1;
674 					t = m1;
675 					m1 = m2;
676 					m2 = t;
677 				}
678 				m2 = linelen * PAGE_SIZE / m2;
679 				*ydstorg = m2 = 0x400000 % m2;
680 				max_yres = (vramlen - m2) / linelen;
681 				if (var->yres_virtual > max_yres)
682 					var->yres_virtual = max_yres;
683 			}
684 		}
685 	} else {
686 		matrox_text_round(PMINFO var, p);
687 #if 0
688 /* we must limit pixclock by mclk...
689    Millennium I:    66 MHz = 15000
690    Millennium II:   61 MHz = 16300
691    Millennium G200: 83 MHz = 12000 */
692 		if (var->pixclock < 15000)
693 			var->pixclock = 15000;	/* limit for "normal" gclk & mclk */
694 #endif
695 	}
696 	/* YDSTLEN contains only signed 16bit value */
697 	if (var->yres_virtual > 32767)
698 		var->yres_virtual = 32767;
699 	/* we must round yres/xres down, we already rounded y/xres_virtual up
700 	   if it was possible. We should return -EINVAL, but I disagree */
701 	if (var->yres_virtual < var->yres)
702 		var->yres = var->yres_virtual;
703 	if (var->xres_virtual < var->xres)
704 		var->xres = var->xres_virtual;
705 	if (var->xoffset + var->xres > var->xres_virtual)
706 		var->xoffset = var->xres_virtual - var->xres;
707 	if (var->yoffset + var->yres > var->yres_virtual)
708 		var->yoffset = var->yres_virtual - var->yres;
709 
710 	if (bpp == 16 && var->green.length == 5) {
711 		bpp--; /* an artifical value - 15 */
712 	}
713 
714 	for (rgbt = table; rgbt->bpp < bpp; rgbt++);
715 #define	SETCLR(clr)\
716 	var->clr.offset = rgbt->clr.offset;\
717 	var->clr.length = rgbt->clr.length
718 	SETCLR(red);
719 	SETCLR(green);
720 	SETCLR(blue);
721 	SETCLR(transp);
722 #undef	SETCLR
723 	*visual = rgbt->visual;
724 
725 	if (bpp > 8)
726 		dprintk("matroxfb: truecolor: "
727 			"size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
728 			var->transp.length, var->red.length, var->green.length, var->blue.length,
729 			var->transp.offset, var->red.offset, var->green.offset, var->blue.offset);
730 
731 	*video_cmap_len = matroxfb_get_cmap_len(var);
732 	dprintk(KERN_INFO "requested %d*%d/%dbpp (%d*%d)\n", var->xres, var->yres, var->bits_per_pixel,
733 				var->xres_virtual, var->yres_virtual);
734 	return 0;
735 }
736 
matroxfb_setcolreg(unsigned regno,unsigned red,unsigned green,unsigned blue,unsigned transp,struct fb_info * fb_info)737 static int matroxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
738 			      unsigned blue, unsigned transp,
739 			      struct fb_info *fb_info)
740 {
741 	struct display* p;
742 #ifdef CONFIG_FB_MATROX_MULTIHEAD
743 	struct matrox_fb_info* minfo = list_entry(fb_info, struct matrox_fb_info, fbcon);
744 #endif
745 
746 	DBG("matroxfb_setcolreg")
747 
748 	/*
749 	 *  Set a single color register. The values supplied are
750 	 *  already rounded down to the hardware's capabilities
751 	 *  (according to the entries in the `var' structure). Return
752 	 *  != 0 for invalid regno.
753 	 */
754 
755 	if (regno >= ACCESS_FBINFO(curr.cmap_len))
756 		return 1;
757 
758 	ACCESS_FBINFO(palette[regno].red)   = red;
759 	ACCESS_FBINFO(palette[regno].green) = green;
760 	ACCESS_FBINFO(palette[regno].blue)  = blue;
761 	ACCESS_FBINFO(palette[regno].transp) = transp;
762 
763 	p = ACCESS_FBINFO(currcon_display);
764 	if (p->var.grayscale) {
765 		/* gray = 0.30*R + 0.59*G + 0.11*B */
766 		red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
767 	}
768 
769 	red = CNVT_TOHW(red, p->var.red.length);
770 	green = CNVT_TOHW(green, p->var.green.length);
771 	blue = CNVT_TOHW(blue, p->var.blue.length);
772 	transp = CNVT_TOHW(transp, p->var.transp.length);
773 
774 	switch (p->var.bits_per_pixel) {
775 #if defined(FBCON_HAS_CFB8) || defined(FBCON_HAS_CFB4) || defined(FBCON_HAS_VGATEXT)
776 #ifdef FBCON_HAS_VGATEXT
777 	case 0:
778 #endif
779 #ifdef FBCON_HAS_CFB4
780 	case 4:
781 #endif
782 #ifdef FBCON_HAS_CFB8
783 	case 8:
784 #endif
785 		mga_outb(M_DAC_REG, regno);
786 		mga_outb(M_DAC_VAL, red);
787 		mga_outb(M_DAC_VAL, green);
788 		mga_outb(M_DAC_VAL, blue);
789 		break;
790 #endif
791 #ifdef FBCON_HAS_CFB16
792 	case 16:
793 		ACCESS_FBINFO(cmap.cfb16[regno]) =
794 			(red << p->var.red.offset)     |
795 			(green << p->var.green.offset) |
796 			(blue << p->var.blue.offset)   |
797 			(transp << p->var.transp.offset); /* for 1:5:5:5 */
798 		break;
799 #endif
800 #ifdef FBCON_HAS_CFB24
801 	case 24:
802 		ACCESS_FBINFO(cmap.cfb24[regno]) =
803 			(red   << p->var.red.offset)   |
804 			(green << p->var.green.offset) |
805 			(blue  << p->var.blue.offset);
806 		break;
807 #endif
808 #ifdef FBCON_HAS_CFB32
809 	case 32:
810 		ACCESS_FBINFO(cmap.cfb32[regno]) =
811 			(red   << p->var.red.offset)   |
812 			(green << p->var.green.offset) |
813 			(blue  << p->var.blue.offset)  |
814 			(transp << p->var.transp.offset);	/* 8:8:8:8 */
815 		break;
816 #endif
817 	}
818 	return 0;
819 }
820 
my_install_cmap(WPMINFO2)821 static inline void my_install_cmap(WPMINFO2)
822 {
823 	/* Do not touch this code if you do not understand what it does! */
824 	/* Never try to use do_install_cmap() instead. It is crap. */
825 	struct fb_cmap* cmap = &ACCESS_FBINFO(currcon_display)->cmap;
826 
827 	if (cmap->len)
828 		fb_set_cmap(cmap, 1, matroxfb_setcolreg, &ACCESS_FBINFO(fbcon));
829 	else
830 		fb_set_cmap(fb_default_cmap(ACCESS_FBINFO(curr.cmap_len)),
831 			    1, matroxfb_setcolreg, &ACCESS_FBINFO(fbcon));
832 }
833 
matroxfb_get_fix(struct fb_fix_screeninfo * fix,int con,struct fb_info * info)834 static int matroxfb_get_fix(struct fb_fix_screeninfo *fix, int con,
835 			 struct fb_info *info)
836 {
837 	struct display* p;
838 	DBG("matroxfb_get_fix")
839 
840 #define minfo (list_entry(info, struct matrox_fb_info, fbcon))
841 
842 	if (ACCESS_FBINFO(dead)) {
843 		return -ENXIO;
844 	}
845 
846 	if (con >= 0)
847 		p = fb_display + con;
848 	else
849 		p = ACCESS_FBINFO(fbcon.disp);
850 
851 	memset(fix, 0, sizeof(*fix));
852 	strcpy(fix->id,"MATROX");
853 
854 	fix->smem_start = ACCESS_FBINFO(video.base) + ACCESS_FBINFO(curr.ydstorg.bytes);
855 	fix->smem_len = ACCESS_FBINFO(video.len_usable) - ACCESS_FBINFO(curr.ydstorg.bytes);
856 	fix->type = p->type;
857 	fix->type_aux = p->type_aux;
858 	fix->visual = p->visual;
859 	fix->xpanstep = 8; /* 8 for 8bpp, 4 for 16bpp, 2 for 32bpp */
860 	fix->ypanstep = 1;
861 	fix->ywrapstep = 0;
862 	fix->line_length = p->line_length;
863 	fix->mmio_start = ACCESS_FBINFO(mmio.base);
864 	fix->mmio_len = ACCESS_FBINFO(mmio.len);
865 	fix->accel = ACCESS_FBINFO(devflags.accelerator);
866 	return 0;
867 #undef minfo
868 }
869 
matroxfb_get_var(struct fb_var_screeninfo * var,int con,struct fb_info * info)870 static int matroxfb_get_var(struct fb_var_screeninfo *var, int con,
871 			 struct fb_info *info)
872 {
873 #define minfo (list_entry(info, struct matrox_fb_info, fbcon))
874 	DBG("matroxfb_get_var")
875 
876 	if(con < 0)
877 		*var=ACCESS_FBINFO(fbcon.disp)->var;
878 	else
879 		*var=fb_display[con].var;
880 	return 0;
881 #undef minfo
882 }
883 
matroxfb_set_var(struct fb_var_screeninfo * var,int con,struct fb_info * info)884 static int matroxfb_set_var(struct fb_var_screeninfo *var, int con,
885 			 struct fb_info *info)
886 {
887 #define minfo (list_entry(info, struct matrox_fb_info, fbcon))
888 	int err;
889 	int visual;
890 	int cmap_len;
891 	unsigned int ydstorg;
892 	struct display* display;
893 	int chgvar;
894 
895 	DBG("matroxfb_set_var")
896 
897 	if (ACCESS_FBINFO(dead)) {
898 		return -ENXIO;
899 	}
900 
901 	if (con >= 0)
902 		display = fb_display + con;
903 	else
904 		display = ACCESS_FBINFO(fbcon.disp);
905 	if ((err = matroxfb_decode_var(PMINFO display, var, &visual, &cmap_len, &ydstorg)) != 0)
906 		return err;
907 	switch (var->activate & FB_ACTIVATE_MASK) {
908 		case FB_ACTIVATE_TEST:	return 0;
909 		case FB_ACTIVATE_NXTOPEN:	/* ?? */
910 		case FB_ACTIVATE_NOW:	break;	/* continue */
911 		default:		return -EINVAL; /* unknown */
912 	}
913 	if (con >= 0) {
914 		chgvar = ((display->var.xres != var->xres) ||
915 		    (display->var.yres != var->yres) ||
916                     (display->var.xres_virtual != var->xres_virtual) ||
917 		    (display->var.yres_virtual != var->yres_virtual) ||
918 		    (display->var.bits_per_pixel != var->bits_per_pixel) ||
919 		    memcmp(&display->var.red, &var->red, sizeof(var->red)) ||
920 		    memcmp(&display->var.green, &var->green, sizeof(var->green)) ||
921 		    memcmp(&display->var.blue, &var->blue, sizeof(var->blue)));
922 	} else {
923 		chgvar = 0;
924 	}
925 	display->var = *var;
926 	/* cmap */
927 	display->screen_base = ACCESS_FBINFO(fbcon.screen_base) = vaddr_va(ACCESS_FBINFO(video.vbase)) + ydstorg;
928 	display->visual = visual;
929 	display->ypanstep = 1;
930 	display->ywrapstep = 0;
931 	if (var->bits_per_pixel) {
932 		display->type = FB_TYPE_PACKED_PIXELS;
933 		display->type_aux = 0;
934 		display->next_line = display->line_length = (var->xres_virtual * var->bits_per_pixel) >> 3;
935 	} else {
936 		display->type = FB_TYPE_TEXT;
937 		display->type_aux = ACCESS_FBINFO(devflags.text_type_aux);
938 		display->next_line = display->line_length = (var->xres_virtual / (fontwidth(display)?fontwidth(display):8)) * ACCESS_FBINFO(devflags.textstep);
939 	}
940 	display->can_soft_blank = 1;
941 	display->inverse = ACCESS_FBINFO(devflags.inverse);
942 	/* conp, fb_info, vrows, cursor_x, cursor_y, fgcol, bgcol */
943 	/* next_plane, fontdata, _font*, userfont */
944 	initMatrox(PMINFO display);	/* dispsw */
945 	/* dispsw, scrollmode, yscroll */
946 	/* fgshift, bgshift, charmask */
947 	if (chgvar && info && info->changevar)
948 		info->changevar(con);
949 	if (con == ACCESS_FBINFO(currcon)) {
950 		unsigned int pos;
951 
952 		ACCESS_FBINFO(curr.cmap_len) = cmap_len;
953 		if (display->type == FB_TYPE_TEXT) {
954 			/* textmode must be in first megabyte, so no ydstorg allowed */
955 			ACCESS_FBINFO(curr.ydstorg.bytes) = 0;
956 			ACCESS_FBINFO(curr.ydstorg.chunks) = 0;
957 			ACCESS_FBINFO(curr.ydstorg.pixels) = 0;
958 		} else {
959 			ydstorg += ACCESS_FBINFO(devflags.ydstorg);
960 			ACCESS_FBINFO(curr.ydstorg.bytes) = ydstorg;
961 			ACCESS_FBINFO(curr.ydstorg.chunks) = ydstorg >> (isInterleave(MINFO)?3:2);
962 			if (var->bits_per_pixel == 4)
963 				ACCESS_FBINFO(curr.ydstorg.pixels) = ydstorg;
964 			else
965 				ACCESS_FBINFO(curr.ydstorg.pixels) = (ydstorg * 8) / var->bits_per_pixel;
966 		}
967 		ACCESS_FBINFO(curr.final_bppShift) = matroxfb_get_final_bppShift(PMINFO var->bits_per_pixel);
968 		if (visual == MX_VISUAL_PSEUDOCOLOR) {
969 			int i;
970 
971 			for (i = 0; i < 16; i++) {
972 				int j;
973 
974 				j = color_table[i];
975 				ACCESS_FBINFO(palette[i].red)   = default_red[j];
976 				ACCESS_FBINFO(palette[i].green) = default_grn[j];
977 				ACCESS_FBINFO(palette[i].blue)  = default_blu[j];
978 			}
979 		}
980 
981 		{	struct my_timming mt;
982 			struct matrox_hw_state* hw;
983 			int out;
984 
985 			matroxfb_var2my(var, &mt);
986 			mt.crtc = MATROXFB_SRC_CRTC1;
987 			/* CRTC1 delays */
988 			switch (var->bits_per_pixel) {
989 				case  0:	mt.delay = 31 + 0; break;
990 				case 16:	mt.delay = 21 + 8; break;
991 				case 24:	mt.delay = 17 + 8; break;
992 				case 32:	mt.delay = 16 + 8; break;
993 				default:	mt.delay = 31 + 8; break;
994 			}
995 
996 			hw = &ACCESS_FBINFO(hw);
997 
998 			del_timer_sync(&ACCESS_FBINFO(cursor.timer));
999 			ACCESS_FBINFO(cursor.state) = CM_ERASE;
1000 
1001 			down_read(&ACCESS_FBINFO(altout).lock);
1002 			for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
1003 				if (ACCESS_FBINFO(outputs[out]).src == MATROXFB_SRC_CRTC1 &&
1004 				    ACCESS_FBINFO(outputs[out]).output->compute) {
1005 					ACCESS_FBINFO(outputs[out]).output->compute(ACCESS_FBINFO(outputs[out]).data, &mt);
1006 				}
1007 			}
1008 			up_read(&ACCESS_FBINFO(altout).lock);
1009 			ACCESS_FBINFO(crtc1).pixclock = mt.pixclock;
1010 			ACCESS_FBINFO(crtc1).mnp = mt.mnp;
1011 			ACCESS_FBINFO(hw_switch->init(PMINFO &mt, display));
1012 			if (display->type == FB_TYPE_TEXT) {
1013 				if (fontheight(display))
1014 					pos = var->yoffset / fontheight(display) * display->next_line / ACCESS_FBINFO(devflags.textstep) + var->xoffset / (fontwidth(display)?fontwidth(display):8);
1015 				else
1016 					pos = 0;
1017 			} else {
1018 				pos = (var->yoffset * var->xres_virtual + var->xoffset) * ACCESS_FBINFO(curr.final_bppShift) / 32;
1019 				pos += ACCESS_FBINFO(curr.ydstorg.chunks);
1020 			}
1021 
1022 			hw->CRTC[0x0D] = pos & 0xFF;
1023 			hw->CRTC[0x0C] = (pos & 0xFF00) >> 8;
1024 			hw->CRTCEXT[0] = (hw->CRTCEXT[0] & 0xF0) | ((pos >> 16) & 0x0F) | ((pos >> 14) & 0x40);
1025 			hw->CRTCEXT[8] = pos >> 21;
1026 
1027 			ACCESS_FBINFO(hw_switch->restore(PMINFO display));
1028 			down_read(&ACCESS_FBINFO(altout).lock);
1029 			for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
1030 				if (ACCESS_FBINFO(outputs[out]).src == MATROXFB_SRC_CRTC1 &&
1031 				    ACCESS_FBINFO(outputs[out]).output->program) {
1032 					ACCESS_FBINFO(outputs[out]).output->program(ACCESS_FBINFO(outputs[out]).data);
1033 				}
1034 			}
1035 			ACCESS_FBINFO(cursor.redraw) = 1;
1036 			for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) {
1037 				if (ACCESS_FBINFO(outputs[out]).src == MATROXFB_SRC_CRTC1 &&
1038 				    ACCESS_FBINFO(outputs[out]).output->start) {
1039 					ACCESS_FBINFO(outputs[out]).output->start(ACCESS_FBINFO(outputs[out]).data);
1040 				}
1041 			}
1042 			up_read(&ACCESS_FBINFO(altout).lock);
1043 			matrox_cfbX_init(PMINFO display);
1044 			my_install_cmap(PMINFO2);
1045 #if defined(CONFIG_FB_COMPAT_XPMAC)
1046 			if (console_fb_info == &ACCESS_FBINFO(fbcon)) {
1047 				int vmode, cmode;
1048 
1049 				display_info.width = var->xres;
1050 				display_info.height = var->yres;
1051 				display_info.depth = var->bits_per_pixel;
1052 				display_info.pitch = (var->xres_virtual)*(var->bits_per_pixel)/8;
1053 				if (mac_var_to_vmode(var, &vmode, &cmode))
1054 					display_info.mode = 0;
1055 				else
1056 					display_info.mode = vmode;
1057 				strcpy(display_info.name, ACCESS_FBINFO(matrox_name));
1058 				display_info.fb_address = ACCESS_FBINFO(video.base);
1059 				display_info.cmap_adr_address = 0;
1060 				display_info.cmap_data_address = 0;
1061 				display_info.disp_reg_address = ACCESS_FBINFO(mmio.base);
1062 			}
1063 #endif /* CONFIG_FB_COMPAT_XPMAC */
1064 		}
1065 	}
1066 	return 0;
1067 #undef minfo
1068 }
1069 
matrox_getcolreg(unsigned regno,unsigned * red,unsigned * green,unsigned * blue,unsigned * transp,struct fb_info * info)1070 static int matrox_getcolreg(unsigned regno, unsigned *red, unsigned *green,
1071 			    unsigned *blue, unsigned *transp,
1072 			    struct fb_info *info)
1073 {
1074 
1075 	DBG("matrox_getcolreg")
1076 
1077 #define minfo (list_entry(info, struct matrox_fb_info, fbcon))
1078 	/*
1079 	 *  Read a single color register and split it into colors/transparent.
1080 	 *  Return != 0 for invalid regno.
1081 	 */
1082 
1083 	if (regno >= ACCESS_FBINFO(curr.cmap_len))
1084 		return 1;
1085 
1086 	*red   = ACCESS_FBINFO(palette[regno].red);
1087 	*green = ACCESS_FBINFO(palette[regno].green);
1088 	*blue  = ACCESS_FBINFO(palette[regno].blue);
1089 	*transp = ACCESS_FBINFO(palette[regno].transp);
1090 	return 0;
1091 #undef minfo
1092 }
1093 
matroxfb_get_cmap(struct fb_cmap * cmap,int kspc,int con,struct fb_info * info)1094 static int matroxfb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
1095 			     struct fb_info *info)
1096 {
1097 #define minfo (list_entry(info, struct matrox_fb_info, fbcon))
1098 	struct display* dsp = (con < 0) ? ACCESS_FBINFO(fbcon.disp)
1099 					: fb_display + con;
1100 
1101 	DBG("matroxfb_get_cmap")
1102 
1103 	if (ACCESS_FBINFO(dead)) {
1104 		return -ENXIO;
1105 	}
1106 
1107 	if (con == ACCESS_FBINFO(currcon)) /* current console? */
1108 		return fb_get_cmap(cmap, kspc, matrox_getcolreg, info);
1109 	else if (dsp->cmap.len) /* non default colormap? */
1110 		fb_copy_cmap(&dsp->cmap, cmap, kspc ? 0 : 2);
1111 	else
1112 		fb_copy_cmap(fb_default_cmap(matroxfb_get_cmap_len(&dsp->var)),
1113 			     cmap, kspc ? 0 : 2);
1114 	return 0;
1115 #undef minfo
1116 }
1117 
matroxfb_set_cmap(struct fb_cmap * cmap,int kspc,int con,struct fb_info * info)1118 static int matroxfb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
1119 			     struct fb_info *info)
1120 {
1121 	unsigned int cmap_len;
1122 	struct display* dsp = (con < 0) ? info->disp : (fb_display + con);
1123 #define minfo (list_entry(info, struct matrox_fb_info, fbcon))
1124 
1125 	DBG("matroxfb_set_cmap")
1126 
1127 	if (ACCESS_FBINFO(dead)) {
1128 		return -ENXIO;
1129 	}
1130 
1131 	cmap_len = matroxfb_get_cmap_len(&dsp->var);
1132 	if (dsp->cmap.len != cmap_len) {
1133 		int err;
1134 
1135 		err = fb_alloc_cmap(&dsp->cmap, cmap_len, 0);
1136 		if (err)
1137 			return err;
1138 	}
1139 	if (con == ACCESS_FBINFO(currcon)) {			/* current console? */
1140 		return fb_set_cmap(cmap, kspc, matroxfb_setcolreg, info);
1141 	} else
1142 		fb_copy_cmap(cmap, &dsp->cmap, kspc ? 0 : 1);
1143 	return 0;
1144 #undef minfo
1145 }
1146 
matroxfb_get_vblank(WPMINFO struct fb_vblank * vblank)1147 static int matroxfb_get_vblank(WPMINFO struct fb_vblank *vblank)
1148 {
1149 	unsigned int sts1;
1150 
1151 	matroxfb_enable_irq(PMINFO 0);
1152 	memset(vblank, 0, sizeof(*vblank));
1153 	vblank->flags = FB_VBLANK_HAVE_VCOUNT | FB_VBLANK_HAVE_VSYNC |
1154 			FB_VBLANK_HAVE_VBLANK | FB_VBLANK_HAVE_HBLANK;
1155 	sts1 = mga_inb(M_INSTS1);
1156 	vblank->vcount = mga_inl(M_VCOUNT);
1157 	/* BTW, on my PIII/450 with G400, reading M_INSTS1
1158 	   byte makes this call about 12% slower (1.70 vs. 2.05 us
1159 	   per ioctl()) */
1160 	if (sts1 & 1)
1161 		vblank->flags |= FB_VBLANK_HBLANKING;
1162 	if (sts1 & 8)
1163 		vblank->flags |= FB_VBLANK_VSYNCING;
1164 	if (vblank->vcount >= ACCESS_FBINFO(currcon_display)->var.yres)
1165 		vblank->flags |= FB_VBLANK_VBLANKING;
1166 	if (test_bit(0, &ACCESS_FBINFO(irq_flags))) {
1167 		vblank->flags |= FB_VBLANK_HAVE_COUNT;
1168 		/* Only one writer, aligned int value...
1169 		   it should work without lock and without atomic_t */
1170 		vblank->count = ACCESS_FBINFO(crtc1).vsync.cnt;
1171 	}
1172 	return 0;
1173 }
1174 
1175 static struct matrox_altout panellink_output = {
1176 	.owner   = THIS_MODULE,
1177 	.name	 = "Panellink output",
1178 };
1179 
matroxfb_ioctl(struct inode * inode,struct file * file,unsigned int cmd,unsigned long arg,int con,struct fb_info * info)1180 static int matroxfb_ioctl(struct inode *inode, struct file *file,
1181 			  unsigned int cmd, unsigned long arg, int con,
1182 			  struct fb_info *info)
1183 {
1184 #define minfo (list_entry(info, struct matrox_fb_info, fbcon))
1185 	DBG("matroxfb_ioctl")
1186 
1187 	if (ACCESS_FBINFO(dead)) {
1188 		return -ENXIO;
1189 	}
1190 
1191 	switch (cmd) {
1192 		case FBIOGET_VBLANK:
1193 			{
1194 				struct fb_vblank vblank;
1195 				int err;
1196 
1197 				err = matroxfb_get_vblank(PMINFO &vblank);
1198 				if (err)
1199 					return err;
1200 				if (copy_to_user((struct fb_vblank*)arg, &vblank, sizeof(vblank)))
1201 					return -EFAULT;
1202 				return 0;
1203 			}
1204 		case FBIO_WAITFORVSYNC:
1205 			{
1206 				u_int32_t crt;
1207 
1208 				if (get_user(crt, (u_int32_t *)arg))
1209 					return -EFAULT;
1210 
1211 				return matroxfb_wait_for_sync(PMINFO crt);
1212 			}
1213 		case MATROXFB_SET_OUTPUT_MODE:
1214 			{
1215 				struct matroxioc_output_mode mom;
1216 				struct matrox_altout *oproc;
1217 				int val;
1218 
1219 				if (copy_from_user(&mom, (struct matroxioc_output_mode*)arg, sizeof(mom)))
1220 					return -EFAULT;
1221 				if (mom.output >= MATROXFB_MAX_OUTPUTS)
1222 					return -ENXIO;
1223 				down_read(&ACCESS_FBINFO(altout.lock));
1224 				oproc = ACCESS_FBINFO(outputs[mom.output]).output;
1225 				if (!oproc) {
1226 					val = -ENXIO;
1227 				} else if (!oproc->verifymode) {
1228 					if (mom.mode == MATROXFB_OUTPUT_MODE_MONITOR) {
1229 						val = 0;
1230 					} else {
1231 						val = -EINVAL;
1232 					}
1233 				} else {
1234 					val = oproc->verifymode(ACCESS_FBINFO(outputs[mom.output]).data, mom.mode);
1235 				}
1236 				if (!val) {
1237 					if (ACCESS_FBINFO(outputs[mom.output]).mode != mom.mode) {
1238 						ACCESS_FBINFO(outputs[mom.output]).mode = mom.mode;
1239 						val = 1;
1240 					}
1241 				}
1242 				up_read(&ACCESS_FBINFO(altout.lock));
1243 				if (val != 1)
1244 					return val;
1245 				switch (ACCESS_FBINFO(outputs[mom.output]).src) {
1246 					case MATROXFB_SRC_CRTC1:
1247 						matroxfb_switch(ACCESS_FBINFO(currcon), info);
1248 						break;
1249 					case MATROXFB_SRC_CRTC2:
1250 						{
1251 							struct matroxfb_dh_fb_info* crtc2;
1252 
1253 							down_read(&ACCESS_FBINFO(crtc2.lock));
1254 							crtc2 = ACCESS_FBINFO(crtc2.info);
1255 							if (crtc2)
1256 								crtc2->fbcon.switch_con(crtc2->currcon, &crtc2->fbcon);
1257 							up_read(&ACCESS_FBINFO(crtc2.lock));
1258 						}
1259 						break;
1260 				}
1261 				return 0;
1262 			}
1263 		case MATROXFB_GET_OUTPUT_MODE:
1264 			{
1265 				struct matroxioc_output_mode mom;
1266 				struct matrox_altout *oproc;
1267 				int val;
1268 
1269 				if (copy_from_user(&mom, (struct matroxioc_output_mode*)arg, sizeof(mom)))
1270 					return -EFAULT;
1271 				if (mom.output >= MATROXFB_MAX_OUTPUTS)
1272 					return -ENXIO;
1273 				down_read(&ACCESS_FBINFO(altout.lock));
1274 				oproc = ACCESS_FBINFO(outputs[mom.output]).output;
1275 				if (!oproc) {
1276 					val = -ENXIO;
1277 				} else {
1278 					mom.mode = ACCESS_FBINFO(outputs[mom.output]).mode;
1279 					val = 0;
1280 				}
1281 				up_read(&ACCESS_FBINFO(altout.lock));
1282 				if (val)
1283 					return val;
1284 				if (copy_to_user((struct matroxioc_output_mode*)arg, &mom, sizeof(mom)))
1285 					return -EFAULT;
1286 				return 0;
1287 			}
1288 		case MATROXFB_SET_OUTPUT_CONNECTION:
1289 			{
1290 				u_int32_t tmp;
1291 				int i;
1292 				int changes;
1293 
1294 				if (copy_from_user(&tmp, (u_int32_t*)arg, sizeof(tmp)))
1295 					return -EFAULT;
1296 				for (i = 0; i < 32; i++) {
1297 					if (tmp & (1 << i)) {
1298 						if (i >= MATROXFB_MAX_OUTPUTS)
1299 							return -ENXIO;
1300 						if (!ACCESS_FBINFO(outputs[i]).output)
1301 							return -ENXIO;
1302 						switch (ACCESS_FBINFO(outputs[i]).src) {
1303 							case MATROXFB_SRC_NONE:
1304 							case MATROXFB_SRC_CRTC1:
1305 								break;
1306 							default:
1307 								return -EBUSY;
1308 						}
1309 					}
1310 				}
1311 				if (ACCESS_FBINFO(devflags.panellink)) {
1312 					if (tmp & MATROXFB_OUTPUT_CONN_DFP) {
1313 						if (tmp & MATROXFB_OUTPUT_CONN_SECONDARY)
1314 							return -EINVAL;
1315 						for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1316 							if (ACCESS_FBINFO(outputs[i]).src == MATROXFB_SRC_CRTC2) {
1317 								return -EBUSY;
1318 							}
1319 						}
1320 					}
1321 				}
1322 				changes = 0;
1323 				for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1324 					if (tmp & (1 << i)) {
1325 						if (ACCESS_FBINFO(outputs[i]).src != MATROXFB_SRC_CRTC1) {
1326 							changes = 1;
1327 							ACCESS_FBINFO(outputs[i]).src = MATROXFB_SRC_CRTC1;
1328 						}
1329 					} else if (ACCESS_FBINFO(outputs[i]).src == MATROXFB_SRC_CRTC1) {
1330 						changes = 1;
1331 						ACCESS_FBINFO(outputs[i]).src = MATROXFB_SRC_NONE;
1332 					}
1333 				}
1334 				if (!changes)
1335 					return 0;
1336 				matroxfb_switch(ACCESS_FBINFO(currcon), info);
1337 				return 0;
1338 			}
1339 		case MATROXFB_GET_OUTPUT_CONNECTION:
1340 			{
1341 				u_int32_t conn = 0;
1342 				int i;
1343 
1344 				for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1345 					if (ACCESS_FBINFO(outputs[i]).src == MATROXFB_SRC_CRTC1) {
1346 						conn |= 1 << i;
1347 					}
1348 				}
1349 				if (put_user(conn, (u_int32_t*)arg))
1350 					return -EFAULT;
1351 				return 0;
1352 			}
1353 		case MATROXFB_GET_AVAILABLE_OUTPUTS:
1354 			{
1355 				u_int32_t conn = 0;
1356 				int i;
1357 
1358 				for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1359 					if (ACCESS_FBINFO(outputs[i]).output) {
1360 						switch (ACCESS_FBINFO(outputs[i]).src) {
1361 							case MATROXFB_SRC_NONE:
1362 							case MATROXFB_SRC_CRTC1:
1363 								conn |= 1 << i;
1364 								break;
1365 						}
1366 					}
1367 				}
1368 				if (ACCESS_FBINFO(devflags.panellink)) {
1369 					if (conn & MATROXFB_OUTPUT_CONN_DFP)
1370 						conn &= ~MATROXFB_OUTPUT_CONN_SECONDARY;
1371 					if (conn & MATROXFB_OUTPUT_CONN_SECONDARY)
1372 						conn &= ~MATROXFB_OUTPUT_CONN_DFP;
1373 				}
1374 				if (put_user(conn, (u_int32_t*)arg))
1375 					return -EFAULT;
1376 				return 0;
1377 			}
1378 		case MATROXFB_GET_ALL_OUTPUTS:
1379 			{
1380 				u_int32_t conn = 0;
1381 				int i;
1382 
1383 				for (i = 0; i < MATROXFB_MAX_OUTPUTS; i++) {
1384 					if (ACCESS_FBINFO(outputs[i]).output) {
1385 						conn |= 1 << i;
1386 					}
1387 				}
1388 				if (put_user(conn, (u_int32_t*)arg))
1389 					return -EFAULT;
1390 				return 0;
1391 			}
1392 		case 0x80585600:
1393 			{
1394 				struct {
1395 					char name[32];
1396 					int type;
1397 					int inputs;
1398 					int outputs;
1399 					int audios;
1400 					int maxwidth;
1401 					int maxheight;
1402 					int minwidth;
1403 					int minheight;
1404 					int maxframerate;
1405 					__u32 flags;
1406 					__u32 reserved[4];
1407 				} r;
1408 
1409 				memset(&r, 0, sizeof(r));
1410 				strcat(r.name, "Matrox TVO");
1411 				r.type = 2; // output
1412 				r.inputs = 0;
1413 				r.outputs = 1;
1414 				r.audios = 0;
1415 				r.maxwidth = 1023;	// max visible width
1416 				r.maxheight = 625;	// max picture height: full PAL
1417 				r.minwidth = 512;	// min visible width... ~480
1418 				r.minheight = 480;	// min picture height: visible portion of NTSC
1419 				r.maxframerate = 60;	// max: NTSC, 60Hz interlaced
1420 				r.flags = 0;		// nothing is supported...
1421 				if (copy_to_user((void*)arg, &r, sizeof(r)))
1422 					return -EFAULT;
1423 				return 0;
1424 
1425 			}
1426 		case MATROXFB_TVOQUERYCTRL:
1427 			{
1428 				struct matroxfb_queryctrl qctrl;
1429 				int err;
1430 
1431 				if (copy_from_user(&qctrl, (struct matroxfb_queryctrl*)arg, sizeof(qctrl)))
1432 					return -EFAULT;
1433 
1434 				down_read(&ACCESS_FBINFO(altout).lock);
1435 				if (!ACCESS_FBINFO(outputs[1]).output) {
1436 					err = -ENXIO;
1437 				} else if (ACCESS_FBINFO(outputs[1]).output->getqueryctrl) {
1438 					err = ACCESS_FBINFO(outputs[1]).output->getqueryctrl(ACCESS_FBINFO(outputs[1]).data, &qctrl);
1439 				} else {
1440 					err = -EINVAL;
1441 				}
1442 				up_read(&ACCESS_FBINFO(altout).lock);
1443 				if (err >= 0 &&
1444 				    copy_to_user((struct matroxfb_queryctrl*)arg, &qctrl, sizeof(qctrl)))
1445 					return -EFAULT;
1446 				return err;
1447 			}
1448 		case MATROXFB_G_TVOCTRL:
1449 			{
1450 				struct matroxfb_control ctrl;
1451 				int err;
1452 
1453 				if (copy_from_user(&ctrl, (struct matroxfb_control*)arg, sizeof(ctrl)))
1454 					return -EFAULT;
1455 
1456 				down_read(&ACCESS_FBINFO(altout).lock);
1457 				if (!ACCESS_FBINFO(outputs[1]).output) {
1458 					err = -ENXIO;
1459 				} else if (ACCESS_FBINFO(outputs[1]).output->getctrl) {
1460 					err = ACCESS_FBINFO(outputs[1]).output->getctrl(ACCESS_FBINFO(outputs[1]).data, &ctrl);
1461 				} else {
1462 					err = -EINVAL;
1463 				}
1464 				up_read(&ACCESS_FBINFO(altout).lock);
1465 				if (err >= 0 &&
1466 				    copy_to_user((struct matroxfb_control*)arg, &ctrl, sizeof(ctrl)))
1467 					return -EFAULT;
1468 				return err;
1469 			}
1470 		case MATROXFB_S_TVOCTRL:
1471 			{
1472 				struct matroxfb_control ctrl;
1473 				int err;
1474 
1475 				if (copy_from_user(&ctrl, (struct matroxfb_control*)arg, sizeof(ctrl)))
1476 					return -EFAULT;
1477 
1478 				down_read(&ACCESS_FBINFO(altout).lock);
1479 				if (!ACCESS_FBINFO(outputs[1]).output) {
1480 					err = -ENXIO;
1481 				} else if (ACCESS_FBINFO(outputs[1]).output->setctrl) {
1482 					err = ACCESS_FBINFO(outputs[1]).output->setctrl(ACCESS_FBINFO(outputs[1]).data, &ctrl);
1483 				} else {
1484 					err = -EINVAL;
1485 				}
1486 				up_read(&ACCESS_FBINFO(altout).lock);
1487 				return err;
1488 			}
1489 	}
1490 	return -ENOTTY;
1491 #undef minfo
1492 }
1493 
1494 /* 0 unblank, 1 blank, 2 no vsync, 3 no hsync, 4 off */
1495 
matroxfb_blank(int blank,struct fb_info * info)1496 static int matroxfb_blank(int blank, struct fb_info *info)
1497 {
1498 #define minfo (list_entry(info, struct matrox_fb_info, fbcon))
1499 	int seq;
1500 	int crtc;
1501 	CRITFLAGS
1502 
1503 	DBG("matroxfb_blank")
1504 
1505 	if (ACCESS_FBINFO(dead))
1506 		return 1;
1507 
1508 	switch (blank) {
1509 		case 1:  seq = 0x20; crtc = 0x00; break; /* works ??? */
1510 		case 2:  seq = 0x20; crtc = 0x10; break;
1511 		case 3:  seq = 0x20; crtc = 0x20; break;
1512 		case 4:  seq = 0x20; crtc = 0x30; break;
1513 		default: seq = 0x00; crtc = 0x00; break;
1514 	}
1515 
1516 	CRITBEGIN
1517 
1518 	mga_outb(M_SEQ_INDEX, 1);
1519 	mga_outb(M_SEQ_DATA, (mga_inb(M_SEQ_DATA) & ~0x20) | seq);
1520 	mga_outb(M_EXTVGA_INDEX, 1);
1521 	mga_outb(M_EXTVGA_DATA, (mga_inb(M_EXTVGA_DATA) & ~0x30) | crtc);
1522 
1523 	CRITEND
1524 	return 0;
1525 #undef minfo
1526 }
1527 
matroxfb_blank24(int blank,struct fb_info * info)1528 static void matroxfb_blank24(int blank, struct fb_info *info)
1529 {
1530 	matroxfb_blank(blank, info);
1531 }
1532 
1533 static struct fb_ops matroxfb_ops = {
1534 	owner:		THIS_MODULE,
1535 	fb_open:	matroxfb_open,
1536 	fb_release:	matroxfb_release,
1537 	fb_get_fix:	matroxfb_get_fix,
1538 	fb_get_var:	matroxfb_get_var,
1539 	fb_set_var:	matroxfb_set_var,
1540 	fb_get_cmap:	matroxfb_get_cmap,
1541 	fb_set_cmap:	matroxfb_set_cmap,
1542 	fb_pan_display:	matroxfb_pan_display,
1543 	fb_ioctl:	matroxfb_ioctl,
1544 };
1545 
matroxfb_switch(int con,struct fb_info * info)1546 int matroxfb_switch(int con, struct fb_info *info)
1547 {
1548 #define minfo (list_entry(info, struct matrox_fb_info, fbcon))
1549 	struct fb_cmap* cmap;
1550 	struct display *p;
1551 
1552 	DBG("matroxfb_switch");
1553 
1554 	if (ACCESS_FBINFO(currcon) >= 0) {
1555 		/* Do we have to save the colormap? */
1556 		cmap = &(ACCESS_FBINFO(currcon_display)->cmap);
1557 		dprintk(KERN_DEBUG "switch1: con = %d, cmap.len = %d\n", ACCESS_FBINFO(currcon), cmap->len);
1558 
1559 		if (cmap->len) {
1560 			dprintk(KERN_DEBUG "switch1a: %p %p %p %p\n", cmap->red, cmap->green, cmap->blue, cmap->transp);
1561 			fb_get_cmap(cmap, 1, matrox_getcolreg, info);
1562 #ifdef DEBUG
1563 			if (cmap->red) {
1564 				dprintk(KERN_DEBUG "switch1r: %X\n", cmap->red[0]);
1565 			}
1566 #endif
1567 		}
1568 	}
1569 	ACCESS_FBINFO(currcon) = con;
1570 	if (con < 0)
1571 		p = ACCESS_FBINFO(fbcon.disp);
1572 	else
1573 		p = fb_display + con;
1574 	ACCESS_FBINFO(currcon_display) = p;
1575 	p->var.activate = FB_ACTIVATE_NOW;
1576 #ifdef DEBUG
1577 	cmap = &p->cmap;
1578 	dprintk(KERN_DEBUG "switch2: con = %d, cmap.len = %d\n", con, cmap->len);
1579 	dprintk(KERN_DEBUG "switch2a: %p %p %p %p\n", cmap->red, cmap->green, cmap->blue, cmap->transp);
1580 	if (p->cmap.red) {
1581 		dprintk(KERN_DEBUG "switch2r: %X\n", cmap->red[0]);
1582 	}
1583 #endif
1584 	matroxfb_set_var(&p->var, con, info);
1585 #ifdef DEBUG
1586 	dprintk(KERN_DEBUG "switch3: con = %d, cmap.len = %d\n", con, cmap->len);
1587 	dprintk(KERN_DEBUG "switch3a: %p %p %p %p\n", cmap->red, cmap->green, cmap->blue, cmap->transp);
1588 	if (p->cmap.red) {
1589 		dprintk(KERN_DEBUG "switch3r: %X\n", cmap->red[0]);
1590 	}
1591 #endif
1592 	return 0;
1593 #undef minfo
1594 }
1595 
1596 #define RSDepth(X)	(((X) >> 8) & 0x0F)
1597 #define RS8bpp		0x1
1598 #define RS15bpp		0x2
1599 #define RS16bpp		0x3
1600 #define RS32bpp		0x4
1601 #define RS4bpp		0x5
1602 #define RS24bpp		0x6
1603 #define RSText		0x7
1604 #define RSText8		0x8
1605 /* 9-F */
1606 static struct { struct fb_bitfield red, green, blue, transp; int bits_per_pixel; } colors[] = {
1607 	{ {  0, 8, 0}, { 0, 8, 0}, { 0, 8, 0}, {  0, 0, 0},  8 },
1608 	{ { 10, 5, 0}, { 5, 5, 0}, { 0, 5, 0}, { 15, 1, 0}, 16 },
1609 	{ { 11, 5, 0}, { 5, 6, 0}, { 0, 5, 0}, {  0, 0, 0}, 16 },
1610 	{ { 16, 8, 0}, { 8, 8, 0}, { 0, 8, 0}, { 24, 8, 0}, 32 },
1611 	{ {  0, 8, 0}, { 0, 8, 0}, { 0, 8, 0}, {  0, 0, 0},  4 },
1612 	{ { 16, 8, 0}, { 8, 8, 0}, { 0, 8, 0}, {  0, 0, 0}, 24 },
1613 	{ {  0, 6, 0}, { 0, 6, 0}, { 0, 6, 0}, {  0, 0, 0},  0 },	/* textmode with (default) VGA8x16 */
1614 	{ {  0, 6, 0}, { 0, 6, 0}, { 0, 6, 0}, {  0, 0, 0},  0 },	/* textmode hardwired to VGA8x8 */
1615 };
1616 
1617 /* initialized by setup, see explanation at end of file (search for MODULE_PARM_DESC) */
1618 static unsigned int mem;		/* "matrox:mem:xxxxxM" */
1619 static int option_precise_width = 1;	/* cannot be changed, option_precise_width==0 must imply noaccel */
1620 static int inv24;			/* "matrox:inv24" */
1621 static int cross4MB = -1;		/* "matrox:cross4MB" */
1622 static int disabled;			/* "matrox:disabled" */
1623 static int noaccel;			/* "matrox:noaccel" */
1624 static int nopan;			/* "matrox:nopan" */
1625 static int no_pci_retry;		/* "matrox:nopciretry" */
1626 static int novga;			/* "matrox:novga" */
1627 static int nobios;			/* "matrox:nobios" */
1628 static int noinit = 1;			/* "matrox:init" */
1629 static int inverse;			/* "matrox:inverse" */
1630 static int hwcursor = 1;		/* "matrox:nohwcursor" */
1631 static int blink = 1;			/* "matrox:noblink" */
1632 static int sgram;			/* "matrox:sgram" */
1633 #ifdef CONFIG_MTRR
1634 static int mtrr = 1;			/* "matrox:nomtrr" */
1635 #endif
1636 static int grayscale;			/* "matrox:grayscale" */
1637 static unsigned int fastfont;		/* "matrox:fastfont:xxxxx" */
1638 static int dev = -1;			/* "matrox:dev:xxxxx" */
1639 static unsigned int vesa = ~0;		/* "matrox:vesa:xxxxx" */
1640 static int depth = -1;			/* "matrox:depth:xxxxx" */
1641 static unsigned int xres;		/* "matrox:xres:xxxxx" */
1642 static unsigned int yres;		/* "matrox:yres:xxxxx" */
1643 static unsigned int upper = ~0;		/* "matrox:upper:xxxxx" */
1644 static unsigned int lower = ~0;		/* "matrox:lower:xxxxx" */
1645 static unsigned int vslen;		/* "matrox:vslen:xxxxx" */
1646 static unsigned int left = ~0;		/* "matrox:left:xxxxx" */
1647 static unsigned int right = ~0;		/* "matrox:right:xxxxx" */
1648 static unsigned int hslen;		/* "matrox:hslen:xxxxx" */
1649 static unsigned int pixclock;		/* "matrox:pixclock:xxxxx" */
1650 static int sync = -1;			/* "matrox:sync:xxxxx" */
1651 static unsigned int fv;			/* "matrox:fv:xxxxx" */
1652 static unsigned int fh;			/* "matrox:fh:xxxxxk" */
1653 static unsigned int maxclk;		/* "matrox:maxclk:xxxxM" */
1654 static int dfp;				/* "matrox:dfp */
1655 static int dfp_type = -1;		/* "matrox:dfp:xxx */
1656 static int memtype = -1;		/* "matrox:memtype:xxx" */
1657 static char fontname[64];		/* "matrox:font:xxxxx" */
1658 
1659 #ifndef MODULE
1660 static char videomode[64];		/* "matrox:mode:xxxxx" or "matrox:xxxxx" */
1661 #endif
1662 
matroxfb_getmemory(WPMINFO unsigned int maxSize,unsigned int * realSize)1663 static int matroxfb_getmemory(WPMINFO unsigned int maxSize, unsigned int *realSize){
1664 	vaddr_t vm;
1665 	unsigned int offs;
1666 	unsigned int offs2;
1667 	unsigned char store;
1668 	unsigned char bytes[32];
1669 	unsigned char* tmp;
1670 
1671 	DBG("matroxfb_getmemory")
1672 
1673 	vm = ACCESS_FBINFO(video.vbase);
1674 	maxSize &= ~0x1FFFFF;	/* must be X*2MB (really it must be 2 or X*4MB) */
1675 	/* at least 2MB */
1676 	if (maxSize < 0x0200000) return 0;
1677 	if (maxSize > 0x2000000) maxSize = 0x2000000;
1678 
1679 	mga_outb(M_EXTVGA_INDEX, 0x03);
1680 	mga_outb(M_EXTVGA_DATA, mga_inb(M_EXTVGA_DATA) | 0x80);
1681 
1682 	store = mga_readb(vm, 0x1234);
1683 	tmp = bytes;
1684 	for (offs = 0x100000; offs < maxSize; offs += 0x200000)
1685 		*tmp++ = mga_readb(vm, offs);
1686 	for (offs = 0x100000; offs < maxSize; offs += 0x200000)
1687 		mga_writeb(vm, offs, 0x02);
1688 	if (ACCESS_FBINFO(features.accel.has_cacheflush))
1689 		mga_outb(M_CACHEFLUSH, 0x00);
1690 	else
1691 		mga_writeb(vm, 0x1234, 0x99);
1692 	for (offs = 0x100000; offs < maxSize; offs += 0x200000) {
1693 		if (mga_readb(vm, offs) != 0x02)
1694 			break;
1695 		mga_writeb(vm, offs, mga_readb(vm, offs) - 0x02);
1696 		if (mga_readb(vm, offs))
1697 			break;
1698 	}
1699 	tmp = bytes;
1700 	for (offs2 = 0x100000; offs2 < maxSize; offs2 += 0x200000)
1701 		mga_writeb(vm, offs2, *tmp++);
1702 	mga_writeb(vm, 0x1234, store);
1703 
1704 	mga_outb(M_EXTVGA_INDEX, 0x03);
1705 	mga_outb(M_EXTVGA_DATA, mga_inb(M_EXTVGA_DATA) & ~0x80);
1706 
1707 	*realSize = offs - 0x100000;
1708 #ifdef CONFIG_FB_MATROX_MILLENIUM
1709 	ACCESS_FBINFO(interleave) = !(!isMillenium(MINFO) || ((offs - 0x100000) & 0x3FFFFF));
1710 #endif
1711 	return 1;
1712 }
1713 
1714 struct video_board {
1715 	int maxvram;
1716 	int maxdisplayable;
1717 	int accelID;
1718 	struct matrox_switch* lowlevel;
1719 		 };
1720 #ifdef CONFIG_FB_MATROX_MILLENIUM
1721 static struct video_board vbMillennium		= {0x0800000, 0x0800000, FB_ACCEL_MATROX_MGA2064W,	&matrox_millennium};
1722 static struct video_board vbMillennium2		= {0x1000000, 0x0800000, FB_ACCEL_MATROX_MGA2164W,	&matrox_millennium};
1723 static struct video_board vbMillennium2A	= {0x1000000, 0x0800000, FB_ACCEL_MATROX_MGA2164W_AGP,	&matrox_millennium};
1724 #endif	/* CONFIG_FB_MATROX_MILLENIUM */
1725 #ifdef CONFIG_FB_MATROX_MYSTIQUE
1726 static struct video_board vbMystique		= {0x0800000, 0x0800000, FB_ACCEL_MATROX_MGA1064SG,	&matrox_mystique};
1727 #endif	/* CONFIG_FB_MATROX_MYSTIQUE */
1728 #ifdef CONFIG_FB_MATROX_G100
1729 static struct video_board vbG100		= {0x0800000, 0x0800000, FB_ACCEL_MATROX_MGAG100,	&matrox_G100};
1730 static struct video_board vbG200		= {0x1000000, 0x1000000, FB_ACCEL_MATROX_MGAG200,	&matrox_G100};
1731 #ifdef CONFIG_FB_MATROX_32MB
1732 /* from doc it looks like that accelerator can draw only to low 16MB :-( Direct accesses & displaying are OK for
1733    whole 32MB */
1734 static struct video_board vbG400		= {0x2000000, 0x1000000, FB_ACCEL_MATROX_MGAG400,	&matrox_G100};
1735 #else
1736 static struct video_board vbG400		= {0x2000000, 0x1000000, FB_ACCEL_MATROX_MGAG400,	&matrox_G100};
1737 #endif
1738 #endif
1739 
1740 #define DEVF_VIDEO64BIT		0x0001
1741 #define	DEVF_SWAPS		0x0002
1742 #define DEVF_SRCORG		0x0004
1743 #define DEVF_DUALHEAD		0x0008
1744 #define DEVF_CROSS4MB		0x0010
1745 #define DEVF_TEXT4B		0x0020
1746 /* #define DEVF_recycled	0x0040	*/
1747 /* #define DEVF_recycled	0x0080	*/
1748 #define DEVF_SUPPORT32MB	0x0100
1749 #define DEVF_ANY_VXRES		0x0200
1750 #define DEVF_TEXT16B		0x0400
1751 #define DEVF_CRTC2		0x0800
1752 #define DEVF_MAVEN_CAPABLE	0x1000
1753 #define DEVF_PANELLINK_CAPABLE	0x2000
1754 #define DEVF_G450DAC		0x4000
1755 
1756 #define DEVF_GCORE	(DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB)
1757 #define DEVF_G2CORE	(DEVF_GCORE | DEVF_ANY_VXRES | DEVF_MAVEN_CAPABLE | DEVF_PANELLINK_CAPABLE | DEVF_SRCORG | DEVF_DUALHEAD)
1758 #define DEVF_G100	(DEVF_GCORE) /* no doc, no vxres... */
1759 #define DEVF_G200	(DEVF_G2CORE)
1760 #define DEVF_G400	(DEVF_G2CORE | DEVF_SUPPORT32MB | DEVF_TEXT16B | DEVF_CRTC2)
1761 /* if you'll find how to drive DFP... */
1762 #define DEVF_G450	(DEVF_GCORE | DEVF_ANY_VXRES | DEVF_SUPPORT32MB | DEVF_TEXT16B | DEVF_CRTC2 | DEVF_G450DAC | DEVF_SRCORG | DEVF_DUALHEAD)
1763 #define DEVF_G550	(DEVF_G450)
1764 
1765 static struct board {
1766 	unsigned short vendor, device, rev, svid, sid;
1767 	unsigned int flags;
1768 	unsigned int maxclk;
1769 	enum mga_chip chip;
1770 	struct video_board* base;
1771 	const char* name;
1772 		} dev_list[] = {
1773 #ifdef CONFIG_FB_MATROX_MILLENIUM
1774 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL,	0xFF,
1775 		0,			0,
1776 		DEVF_TEXT4B,
1777 		230000,
1778 		MGA_2064,
1779 		&vbMillennium,
1780 		"Millennium (PCI)"},
1781 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL_2,	0xFF,
1782 		0,			0,
1783 		DEVF_SWAPS,
1784 		220000,
1785 		MGA_2164,
1786 		&vbMillennium2,
1787 		"Millennium II (PCI)"},
1788 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL_2_AGP,	0xFF,
1789 		0,			0,
1790 		DEVF_SWAPS,
1791 		250000,
1792 		MGA_2164,
1793 		&vbMillennium2A,
1794 		"Millennium II (AGP)"},
1795 #endif
1796 #ifdef CONFIG_FB_MATROX_MYSTIQUE
1797 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS,	0x02,
1798 		0,			0,
1799 		DEVF_VIDEO64BIT | DEVF_CROSS4MB,
1800 		180000,
1801 		MGA_1064,
1802 		&vbMystique,
1803 		"Mystique (PCI)"},
1804 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS,	0xFF,
1805 		0,			0,
1806 		DEVF_VIDEO64BIT | DEVF_SWAPS | DEVF_CROSS4MB,
1807 		220000,
1808 		MGA_1164,
1809 		&vbMystique,
1810 		"Mystique 220 (PCI)"},
1811 #endif
1812 #ifdef CONFIG_FB_MATROX_G100
1813 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_MM,	0xFF,
1814 		0,			0,
1815 		DEVF_G100,
1816 		230000,
1817 		MGA_G100,
1818 		&vbG100,
1819 		"MGA-G100 (PCI)"},
1820 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_AGP,	0xFF,
1821 		0,			0,
1822 		DEVF_G100,
1823 		230000,
1824 		MGA_G100,
1825 		&vbG100,
1826 		"MGA-G100 (AGP)"},
1827 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_PCI,	0xFF,
1828 		0,			0,
1829 		DEVF_G200,
1830 		250000,
1831 		MGA_G200,
1832 		&vbG200,
1833 		"MGA-G200 (PCI)"},
1834 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1835 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_GENERIC,
1836 		DEVF_G200,
1837 		220000,
1838 		MGA_G200,
1839 		&vbG200,
1840 		"MGA-G200 (AGP)"},
1841 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1842 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MYSTIQUE_G200_AGP,
1843 		DEVF_G200,
1844 		230000,
1845 		MGA_G200,
1846 		&vbG200,
1847 		"Mystique G200 (AGP)"},
1848 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1849 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MILLENIUM_G200_AGP,
1850 		DEVF_G200,
1851 		250000,
1852 		MGA_G200,
1853 		&vbG200,
1854 		"Millennium G200 (AGP)"},
1855 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1856 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MARVEL_G200_AGP,
1857 		DEVF_G200,
1858 		230000,
1859 		MGA_G200,
1860 		&vbG200,
1861 		"Marvel G200 (AGP)"},
1862 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1863 		PCI_SS_VENDOR_ID_SIEMENS_NIXDORF,	PCI_SS_ID_SIEMENS_MGA_G200_AGP,
1864 		DEVF_G200,
1865 		230000,
1866 		MGA_G200,
1867 		&vbG200,
1868 		"MGA-G200 (AGP)"},
1869 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,	0xFF,
1870 		0,			0,
1871 		DEVF_G200,
1872 		230000,
1873 		MGA_G200,
1874 		&vbG200,
1875 		"G200 (AGP)"},
1876 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G400,	0x80,
1877 		PCI_SS_VENDOR_ID_MATROX,	PCI_SS_ID_MATROX_MILLENNIUM_G400_MAX_AGP,
1878 		DEVF_G400,
1879 		360000,
1880 		MGA_G400,
1881 		&vbG400,
1882 		"Millennium G400 MAX (AGP)"},
1883 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G400,	0x80,
1884 		0,			0,
1885 		DEVF_G400,
1886 		300000,
1887 		MGA_G400,
1888 		&vbG400,
1889 		"G400 (AGP)"},
1890 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G400,	0xFF,
1891 		0,			0,
1892 		DEVF_G450,
1893 		360000,
1894 		MGA_G450,
1895 		&vbG400,
1896 		"G450"},
1897 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G550,	0xFF,
1898 		0,			0,
1899 		DEVF_G550,
1900 		360000,
1901 		MGA_G550,
1902 		&vbG400,
1903 		"G550"},
1904 #endif
1905 	{0,			0,				0xFF,
1906 		0,			0,
1907 		0,
1908 		0,
1909 		0,
1910 		NULL,
1911 		NULL}};
1912 
1913 #ifndef MODULE
1914 static struct fb_videomode defaultmode = {
1915 	/* 640x480 @ 60Hz, 31.5 kHz */
1916 	NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
1917 	0, FB_VMODE_NONINTERLACED
1918 };
1919 #endif /* !MODULE */
1920 
1921 static int hotplug = 0;
1922 
initMatrox2(WPMINFO struct display * d,struct board * b)1923 static int initMatrox2(WPMINFO struct display* d, struct board* b){
1924 	unsigned long ctrlptr_phys = 0;
1925 	unsigned long video_base_phys = 0;
1926 	unsigned int memsize;
1927 	int err;
1928 
1929 	DBG("initMatrox2")
1930 
1931 	/* set default values... */
1932 	vesafb_defined.accel_flags = FB_ACCELF_TEXT;
1933 
1934 	ACCESS_FBINFO(hw_switch) = b->base->lowlevel;
1935 	ACCESS_FBINFO(devflags.accelerator) = b->base->accelID;
1936 	ACCESS_FBINFO(max_pixel_clock) = b->maxclk;
1937 
1938 	printk(KERN_INFO "matroxfb: Matrox %s detected\n", b->name);
1939 	ACCESS_FBINFO(capable.plnwt) = 1;
1940 	ACCESS_FBINFO(chip) = b->chip;
1941 	ACCESS_FBINFO(capable.srcorg) = b->flags & DEVF_SRCORG;
1942 	ACCESS_FBINFO(devflags.video64bits) = b->flags & DEVF_VIDEO64BIT;
1943 	if (b->flags & DEVF_TEXT4B) {
1944 		ACCESS_FBINFO(devflags.vgastep) = 4;
1945 		ACCESS_FBINFO(devflags.textmode) = 4;
1946 		ACCESS_FBINFO(devflags.text_type_aux) = FB_AUX_TEXT_MGA_STEP16;
1947 	} else if (b->flags & DEVF_TEXT16B) {
1948 		ACCESS_FBINFO(devflags.vgastep) = 16;
1949 		ACCESS_FBINFO(devflags.textmode) = 1;
1950 		ACCESS_FBINFO(devflags.text_type_aux) = FB_AUX_TEXT_MGA_STEP16;
1951 	} else {
1952 		ACCESS_FBINFO(devflags.vgastep) = 8;
1953 		ACCESS_FBINFO(devflags.textmode) = 1;
1954 		ACCESS_FBINFO(devflags.text_type_aux) = FB_AUX_TEXT_MGA_STEP8;
1955 	}
1956 #ifdef CONFIG_FB_MATROX_32MB
1957 	ACCESS_FBINFO(devflags.support32MB) = (b->flags & DEVF_SUPPORT32MB) != 0;
1958 #endif
1959 	ACCESS_FBINFO(devflags.precise_width) = !(b->flags & DEVF_ANY_VXRES);
1960 	ACCESS_FBINFO(devflags.crtc2) = (b->flags & DEVF_CRTC2) != 0;
1961 	ACCESS_FBINFO(devflags.maven_capable) = (b->flags & DEVF_MAVEN_CAPABLE) != 0;
1962 	ACCESS_FBINFO(devflags.dualhead) = (b->flags & DEVF_DUALHEAD) != 0;
1963 	if (b->flags & DEVF_PANELLINK_CAPABLE) {
1964 		ACCESS_FBINFO(outputs[2]).data = MINFO;
1965 		ACCESS_FBINFO(outputs[2]).output = &panellink_output;
1966 		if (dfp)
1967 			ACCESS_FBINFO(outputs[2]).src = MATROXFB_SRC_CRTC1;
1968 		else
1969 			ACCESS_FBINFO(outputs[2]).src = MATROXFB_SRC_NONE;
1970 		ACCESS_FBINFO(outputs[2]).mode = MATROXFB_OUTPUT_MODE_MONITOR;
1971 		ACCESS_FBINFO(devflags.panellink) = 1;
1972 	}
1973 	ACCESS_FBINFO(devflags.dfp_type) = dfp_type;
1974 	ACCESS_FBINFO(devflags.g450dac) = (b->flags & DEVF_G450DAC) != 0;
1975 	ACCESS_FBINFO(devflags.textstep) = ACCESS_FBINFO(devflags.vgastep) * ACCESS_FBINFO(devflags.textmode);
1976 	ACCESS_FBINFO(devflags.textvram) = 65536 / ACCESS_FBINFO(devflags.textmode);
1977 
1978 	if (ACCESS_FBINFO(capable.cross4MB) < 0)
1979 		ACCESS_FBINFO(capable.cross4MB) = b->flags & DEVF_CROSS4MB;
1980 	if (b->flags & DEVF_SWAPS) {
1981 		ctrlptr_phys = pci_resource_start(ACCESS_FBINFO(pcidev), 1);
1982 		video_base_phys = pci_resource_start(ACCESS_FBINFO(pcidev), 0);
1983 		ACCESS_FBINFO(devflags.fbResource) = PCI_BASE_ADDRESS_0;
1984 	} else {
1985 		ctrlptr_phys = pci_resource_start(ACCESS_FBINFO(pcidev), 0);
1986 		video_base_phys = pci_resource_start(ACCESS_FBINFO(pcidev), 1);
1987 		ACCESS_FBINFO(devflags.fbResource) = PCI_BASE_ADDRESS_1;
1988 	}
1989 	err = -EINVAL;
1990 	if (!ctrlptr_phys) {
1991 		printk(KERN_ERR "matroxfb: control registers are not available, matroxfb disabled\n");
1992 		goto fail;
1993 	}
1994 	if (!video_base_phys) {
1995 		printk(KERN_ERR "matroxfb: video RAM is not available in PCI address space, matroxfb disabled\n");
1996 		goto fail;
1997 	}
1998 	memsize = b->base->maxvram;
1999 	if (!request_mem_region(ctrlptr_phys, 16384, "matroxfb MMIO")) {
2000 		goto fail;
2001 	}
2002 	if (!request_mem_region(video_base_phys, memsize, "matroxfb FB")) {
2003 		goto failCtrlMR;
2004 	}
2005 	ACCESS_FBINFO(video.len_maximum) = memsize;
2006 	/* convert mem (autodetect k, M) */
2007 	if (mem < 1024) mem *= 1024;
2008 	if (mem < 0x00100000) mem *= 1024;
2009 
2010 	if (mem && (mem < memsize))
2011 		memsize = mem;
2012 	err = -ENOMEM;
2013 	if (mga_ioremap(ctrlptr_phys, 16384, MGA_IOREMAP_MMIO, &ACCESS_FBINFO(mmio.vbase))) {
2014 		printk(KERN_ERR "matroxfb: cannot ioremap(%lX, 16384), matroxfb disabled\n", ctrlptr_phys);
2015 		goto failVideoMR;
2016 	}
2017 	ACCESS_FBINFO(mmio.base) = ctrlptr_phys;
2018 	ACCESS_FBINFO(mmio.len) = 16384;
2019 	ACCESS_FBINFO(video.base) = video_base_phys;
2020 	if (mga_ioremap(video_base_phys, memsize, MGA_IOREMAP_FB, &ACCESS_FBINFO(video.vbase))) {
2021 		printk(KERN_ERR "matroxfb: cannot ioremap(%lX, %d), matroxfb disabled\n",
2022 			video_base_phys, memsize);
2023 		goto failCtrlIO;
2024 	}
2025 	{
2026 		u_int32_t cmd;
2027 		u_int32_t mga_option;
2028 
2029 		pci_read_config_dword(ACCESS_FBINFO(pcidev), PCI_OPTION_REG, &mga_option);
2030 		pci_read_config_dword(ACCESS_FBINFO(pcidev), PCI_COMMAND, &cmd);
2031 		mga_option &= 0x7FFFFFFF; /* clear BIG_ENDIAN */
2032 		mga_option |= MX_OPTION_BSWAP;
2033                 /* disable palette snooping */
2034                 cmd &= ~PCI_COMMAND_VGA_PALETTE;
2035 		if (pci_find_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, NULL)) {
2036 			if (!(mga_option & 0x20000000) && !ACCESS_FBINFO(devflags.nopciretry)) {
2037 				printk(KERN_WARNING "matroxfb: Disabling PCI retries due to i82437 present\n");
2038 			}
2039 			mga_option |= 0x20000000;
2040 			ACCESS_FBINFO(devflags.nopciretry) = 1;
2041 		}
2042 		pci_write_config_dword(ACCESS_FBINFO(pcidev), PCI_COMMAND, cmd);
2043 		pci_write_config_dword(ACCESS_FBINFO(pcidev), PCI_OPTION_REG, mga_option);
2044 		ACCESS_FBINFO(hw).MXoptionReg = mga_option;
2045 
2046 		/* select non-DMA memory for PCI_MGA_DATA, otherwise dump of PCI cfg space can lock PCI bus */
2047 		/* maybe preinit() candidate, but it is same... for all devices... at this time... */
2048 		pci_write_config_dword(ACCESS_FBINFO(pcidev), PCI_MGA_INDEX, 0x00003C00);
2049 	}
2050 
2051 	err = -ENXIO;
2052 	matroxfb_read_pins(PMINFO2);
2053 	if (ACCESS_FBINFO(hw_switch)->preinit(PMINFO2)) {
2054 		goto failVideoIO;
2055 	}
2056 
2057 	err = -ENOMEM;
2058 	if (!matroxfb_getmemory(PMINFO memsize, &ACCESS_FBINFO(video.len)) || !ACCESS_FBINFO(video.len)) {
2059 		printk(KERN_ERR "matroxfb: cannot determine memory size\n");
2060 		goto failVideoIO;
2061 	}
2062 	ACCESS_FBINFO(devflags.ydstorg) = 0;
2063 
2064 	ACCESS_FBINFO(currcon) = -1;
2065 	ACCESS_FBINFO(currcon_display) = d;
2066 	ACCESS_FBINFO(video.base) = video_base_phys;
2067 	ACCESS_FBINFO(video.len_usable) = ACCESS_FBINFO(video.len);
2068 	if (ACCESS_FBINFO(video.len_usable) > b->base->maxdisplayable)
2069 		ACCESS_FBINFO(video.len_usable) = b->base->maxdisplayable;
2070 #ifdef CONFIG_MTRR
2071 	if (mtrr) {
2072 		ACCESS_FBINFO(mtrr.vram) = mtrr_add(video_base_phys, ACCESS_FBINFO(video.len), MTRR_TYPE_WRCOMB, 1);
2073 		ACCESS_FBINFO(mtrr.vram_valid) = 1;
2074 		printk(KERN_INFO "matroxfb: MTRR's turned on\n");
2075 	}
2076 #endif	/* CONFIG_MTRR */
2077 
2078 	if (!ACCESS_FBINFO(devflags.novga))
2079 		request_region(0x3C0, 32, "matrox");
2080 	matroxfb_g450_connect(PMINFO2);
2081 	ACCESS_FBINFO(hw_switch->reset(PMINFO2));
2082 
2083 	ACCESS_FBINFO(fbcon.monspecs.hfmin) = 0;
2084 	ACCESS_FBINFO(fbcon.monspecs.hfmax) = fh;
2085 	ACCESS_FBINFO(fbcon.monspecs.vfmin) = 0;
2086 	ACCESS_FBINFO(fbcon.monspecs.vfmax) = fv;
2087 	ACCESS_FBINFO(fbcon.monspecs.dpms) = 0;	/* TBD */
2088 
2089 	/* static settings */
2090 	if ((depth == RSText8) && (!*ACCESS_FBINFO(fbcon.fontname))) {
2091 		strcpy(ACCESS_FBINFO(fbcon.fontname), "VGA8x8");
2092 	}
2093 	vesafb_defined.red = colors[depth-1].red;
2094 	vesafb_defined.green = colors[depth-1].green;
2095 	vesafb_defined.blue = colors[depth-1].blue;
2096 	vesafb_defined.bits_per_pixel = colors[depth-1].bits_per_pixel;
2097 	vesafb_defined.grayscale = grayscale;
2098 	vesafb_defined.vmode = 0;
2099 	if (noaccel)
2100 		vesafb_defined.accel_flags &= ~FB_ACCELF_TEXT;
2101 
2102 	strcpy(ACCESS_FBINFO(fbcon.modename), "MATROX VGA");
2103 	ACCESS_FBINFO(fbcon.changevar) = NULL;
2104 	ACCESS_FBINFO(fbcon.node) = NODEV;
2105 	ACCESS_FBINFO(fbcon.fbops) = &matroxfb_ops;
2106 	ACCESS_FBINFO(fbcon.disp) = d;
2107 	ACCESS_FBINFO(fbcon.switch_con) = &matroxfb_switch;
2108 	ACCESS_FBINFO(fbcon.updatevar) = &matroxfb_updatevar;
2109 	ACCESS_FBINFO(fbcon.blank) = &matroxfb_blank24;
2110 	/* after __init time we are like module... no logo */
2111 	ACCESS_FBINFO(fbcon.flags) = hotplug ? FBINFO_FLAG_MODULE : FBINFO_FLAG_DEFAULT;
2112 	ACCESS_FBINFO(video.len_usable) &= PAGE_MASK;
2113 
2114 #ifndef MODULE
2115 	/* mode database is marked __init!!! */
2116 	if (!hotplug) {
2117 		fb_find_mode(&vesafb_defined, &ACCESS_FBINFO(fbcon), videomode[0]?videomode:NULL,
2118 			NULL, 0, &defaultmode, vesafb_defined.bits_per_pixel);
2119 	}
2120 #endif /* !MODULE */
2121 
2122 	/* mode modifiers */
2123 	if (hslen)
2124 		vesafb_defined.hsync_len = hslen;
2125 	if (vslen)
2126 		vesafb_defined.vsync_len = vslen;
2127 	if (left != ~0)
2128 		vesafb_defined.left_margin = left;
2129 	if (right != ~0)
2130 		vesafb_defined.right_margin = right;
2131 	if (upper != ~0)
2132 		vesafb_defined.upper_margin = upper;
2133 	if (lower != ~0)
2134 		vesafb_defined.lower_margin = lower;
2135 	if (xres)
2136 		vesafb_defined.xres = xres;
2137 	if (yres)
2138 		vesafb_defined.yres = yres;
2139 	if (sync != -1)
2140 		vesafb_defined.sync = sync;
2141 	else if (vesafb_defined.sync == ~0) {
2142 		vesafb_defined.sync = 0;
2143 		if (yres < 400)
2144 			vesafb_defined.sync |= FB_SYNC_HOR_HIGH_ACT;
2145 		else if (yres < 480)
2146 			vesafb_defined.sync |= FB_SYNC_VERT_HIGH_ACT;
2147 	}
2148 
2149 	/* fv, fh, maxclk limits was specified */
2150 	{
2151 		unsigned int tmp;
2152 
2153 		if (fv) {
2154 			tmp = fv * (vesafb_defined.upper_margin + vesafb_defined.yres
2155 			          + vesafb_defined.lower_margin + vesafb_defined.vsync_len);
2156 			if ((tmp < fh) || (fh == 0)) fh = tmp;
2157 		}
2158 		if (fh) {
2159 			tmp = fh * (vesafb_defined.left_margin + vesafb_defined.xres
2160 			          + vesafb_defined.right_margin + vesafb_defined.hsync_len);
2161 			if ((tmp < maxclk) || (maxclk == 0)) maxclk = tmp;
2162 		}
2163 		tmp = (maxclk + 499) / 500;
2164 		if (tmp) {
2165 			tmp = (2000000000 + tmp) / tmp;
2166 			if (tmp > pixclock) pixclock = tmp;
2167 		}
2168 	}
2169 	if (pixclock) {
2170 		if (pixclock < 2000)		/* > 500MHz */
2171 			pixclock = 4000;	/* 250MHz */
2172 		if (pixclock > 1000000)
2173 			pixclock = 1000000;	/* 1MHz */
2174 		vesafb_defined.pixclock = pixclock;
2175 	}
2176 
2177 	/* FIXME: Where to move this?! */
2178 #if defined(CONFIG_ALL_PPC)
2179 #if defined(CONFIG_FB_COMPAT_XPMAC)
2180 	strcpy(ACCESS_FBINFO(matrox_name), "MTRX,");	/* OpenFirmware naming convension */
2181 	strncat(ACCESS_FBINFO(matrox_name), b->name, 26);
2182 	if (!console_fb_info)
2183 		console_fb_info = &ACCESS_FBINFO(fbcon);
2184 #endif
2185 #ifndef MODULE
2186 	if (_machine == _MACH_Pmac) {
2187 		struct fb_var_screeninfo var;
2188 		if (default_vmode <= 0 || default_vmode > VMODE_MAX)
2189 			default_vmode = VMODE_640_480_60;
2190 #ifdef CONFIG_NVRAM
2191 		if (default_cmode == CMODE_NVRAM)
2192 			default_cmode = nvram_read_byte(NV_CMODE);
2193 #endif
2194 		if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
2195 			default_cmode = CMODE_8;
2196 		if (!mac_vmode_to_var(default_vmode, default_cmode, &var)) {
2197 			var.accel_flags = vesafb_defined.accel_flags;
2198 			var.xoffset = var.yoffset = 0;
2199 			/* Note: mac_vmode_to_var() does not set all parameters */
2200 			vesafb_defined = var;
2201 		}
2202 	}
2203 #endif /* !MODULE */
2204 #endif /* CONFIG_ALL_PPC */
2205 	vesafb_defined.xres_virtual = vesafb_defined.xres;
2206 	if (nopan) {
2207 		vesafb_defined.yres_virtual = vesafb_defined.yres;
2208 	} else {
2209 		vesafb_defined.yres_virtual = 65536; /* large enough to be INF, but small enough
2210 							to yres_virtual * xres_virtual < 2^32 */
2211 	}
2212 	err = -EINVAL;
2213 	if (matroxfb_set_var(&vesafb_defined, -2, &ACCESS_FBINFO(fbcon))) {
2214 		printk(KERN_ERR "matroxfb: cannot set required parameters\n");
2215 		goto failVideoIO;
2216 	}
2217 
2218 	printk(KERN_INFO "matroxfb: %dx%dx%dbpp (virtual: %dx%d)\n",
2219 		vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel,
2220 		vesafb_defined.xres_virtual, vesafb_defined.yres_virtual);
2221 	printk(KERN_INFO "matroxfb: framebuffer at 0x%lX, mapped to 0x%p, size %d\n",
2222 		ACCESS_FBINFO(video.base), vaddr_va(ACCESS_FBINFO(video.vbase)), ACCESS_FBINFO(video.len));
2223 
2224 /* We do not have to set currcon to 0... register_framebuffer do it for us on first console
2225  * and we do not want currcon == 0 for subsequent framebuffers */
2226 
2227 	if (register_framebuffer(&ACCESS_FBINFO(fbcon)) < 0) {
2228 		goto failVideoIO;
2229 	}
2230 	printk("fb%d: %s frame buffer device\n",
2231 	       GET_FB_IDX(ACCESS_FBINFO(fbcon.node)), ACCESS_FBINFO(fbcon.modename));
2232 	if (ACCESS_FBINFO(currcon) < 0) {
2233 		/* there is no console on this fb... but we have to initialize hardware
2234 		 * until someone tells me what is proper thing to do */
2235 		printk(KERN_INFO "fb%d: initializing hardware\n",
2236 			GET_FB_IDX(ACCESS_FBINFO(fbcon.node)));
2237 		matroxfb_set_var(&vesafb_defined, -1, &ACCESS_FBINFO(fbcon));
2238 	}
2239 	return 0;
2240 failVideoIO:;
2241 	matroxfb_g450_shutdown(PMINFO2);
2242 	mga_iounmap(ACCESS_FBINFO(video.vbase));
2243 failCtrlIO:;
2244 	mga_iounmap(ACCESS_FBINFO(mmio.vbase));
2245 failVideoMR:;
2246 	release_mem_region(video_base_phys, ACCESS_FBINFO(video.len_maximum));
2247 failCtrlMR:;
2248 	release_mem_region(ctrlptr_phys, 16384);
2249 fail:;
2250 	return err;
2251 }
2252 
2253 LIST_HEAD(matroxfb_list);
2254 LIST_HEAD(matroxfb_driver_list);
2255 
2256 #define matroxfb_l(x) list_entry(x, struct matrox_fb_info, next_fb)
2257 #define matroxfb_driver_l(x) list_entry(x, struct matroxfb_driver, node)
matroxfb_register_driver(struct matroxfb_driver * drv)2258 int matroxfb_register_driver(struct matroxfb_driver* drv) {
2259 	struct matrox_fb_info* minfo;
2260 
2261 	list_add(&drv->node, &matroxfb_driver_list);
2262 	for (minfo = matroxfb_l(matroxfb_list.next);
2263 	     minfo != matroxfb_l(&matroxfb_list);
2264 	     minfo = matroxfb_l(minfo->next_fb.next)) {
2265 		void* p;
2266 
2267 		if (minfo->drivers_count == MATROXFB_MAX_FB_DRIVERS)
2268 			continue;
2269 		p = drv->probe(minfo);
2270 		if (p) {
2271 			minfo->drivers_data[minfo->drivers_count] = p;
2272 			minfo->drivers[minfo->drivers_count++] = drv;
2273 		}
2274 	}
2275 	return 0;
2276 }
2277 
matroxfb_unregister_driver(struct matroxfb_driver * drv)2278 void matroxfb_unregister_driver(struct matroxfb_driver* drv) {
2279 	struct matrox_fb_info* minfo;
2280 
2281 	list_del(&drv->node);
2282 	for (minfo = matroxfb_l(matroxfb_list.next);
2283 	     minfo != matroxfb_l(&matroxfb_list);
2284 	     minfo = matroxfb_l(minfo->next_fb.next)) {
2285 		int i;
2286 
2287 		for (i = 0; i < minfo->drivers_count; ) {
2288 			if (minfo->drivers[i] == drv) {
2289 				if (drv && drv->remove)
2290 					drv->remove(minfo, minfo->drivers_data[i]);
2291 				minfo->drivers[i] = minfo->drivers[--minfo->drivers_count];
2292 				minfo->drivers_data[i] = minfo->drivers_data[minfo->drivers_count];
2293 			} else
2294 				i++;
2295 		}
2296 	}
2297 }
2298 
matroxfb_register_device(struct matrox_fb_info * minfo)2299 static void matroxfb_register_device(struct matrox_fb_info* minfo) {
2300 	struct matroxfb_driver* drv;
2301 	int i = 0;
2302 	list_add(&ACCESS_FBINFO(next_fb), &matroxfb_list);
2303 	for (drv = matroxfb_driver_l(matroxfb_driver_list.next);
2304 	     drv != matroxfb_driver_l(&matroxfb_driver_list);
2305 	     drv = matroxfb_driver_l(drv->node.next)) {
2306 		if (drv && drv->probe) {
2307 			void *p = drv->probe(minfo);
2308 			if (p) {
2309 				minfo->drivers_data[i] = p;
2310 				minfo->drivers[i++] = drv;
2311 				if (i == MATROXFB_MAX_FB_DRIVERS)
2312 					break;
2313 			}
2314 		}
2315 	}
2316 	minfo->drivers_count = i;
2317 }
2318 
matroxfb_unregister_device(struct matrox_fb_info * minfo)2319 static void matroxfb_unregister_device(struct matrox_fb_info* minfo) {
2320 	int i;
2321 
2322 	list_del(&ACCESS_FBINFO(next_fb));
2323 	for (i = 0; i < minfo->drivers_count; i++) {
2324 		struct matroxfb_driver* drv = minfo->drivers[i];
2325 
2326 		if (drv && drv->remove)
2327 			drv->remove(minfo, minfo->drivers_data[i]);
2328 	}
2329 }
2330 
matroxfb_probe(struct pci_dev * pdev,const struct pci_device_id * dummy)2331 static int matroxfb_probe(struct pci_dev* pdev, const struct pci_device_id* dummy) {
2332 	struct board* b;
2333 	u_int8_t rev;
2334 	u_int16_t svid;
2335 	u_int16_t sid;
2336 	struct matrox_fb_info* minfo;
2337 	struct display* d;
2338 	int err;
2339 	u_int32_t cmd;
2340 #ifndef CONFIG_FB_MATROX_MULTIHEAD
2341 	static int registered = 0;
2342 	static struct display global_disp;
2343 #endif
2344 	DBG("matroxfb_probe")
2345 
2346 	pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
2347 	svid = pdev->subsystem_vendor;
2348 	sid = pdev->subsystem_device;
2349 	for (b = dev_list; b->vendor; b++) {
2350 		if ((b->vendor != pdev->vendor) || (b->device != pdev->device) || (b->rev < rev)) continue;
2351 		if (b->svid)
2352 			if ((b->svid != svid) || (b->sid != sid)) continue;
2353 		break;
2354 	}
2355 	/* not match... */
2356 	if (!b->vendor)
2357 		return -1;
2358 	if (dev > 0) {
2359 		/* not requested one... */
2360 		dev--;
2361 		return -1;
2362 	}
2363 	pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
2364 	if (pci_enable_device(pdev)) {
2365 		return -1;
2366 	}
2367 
2368 #ifdef CONFIG_FB_MATROX_MULTIHEAD
2369 	minfo = (struct matrox_fb_info*)kmalloc(sizeof(*minfo), GFP_KERNEL);
2370 	if (!minfo)
2371 		return -1;
2372 	d = (struct display*)kmalloc(sizeof(*d), GFP_KERNEL);
2373 	if (!d) {
2374 		kfree(minfo);
2375 		return -1;
2376 	}
2377 #else
2378 	if (registered)	/* singlehead driver... */
2379 		return -1;
2380 	minfo = &matroxfb_global_mxinfo;
2381 	d = &global_disp;
2382 #endif
2383 	memset(MINFO, 0, sizeof(*MINFO));
2384 	memset(d, 0, sizeof(*d));
2385 
2386 	ACCESS_FBINFO(pcidev) = pdev;
2387 	ACCESS_FBINFO(dead) = 0;
2388 	ACCESS_FBINFO(usecount) = 0;
2389 	pci_set_drvdata(pdev, MINFO);
2390 	/* CMDLINE */
2391 	memcpy(ACCESS_FBINFO(fbcon.fontname), fontname, sizeof(ACCESS_FBINFO(fbcon.fontname)));
2392 	/* DEVFLAGS */
2393 	ACCESS_FBINFO(devflags.inverse) = inverse;
2394 	ACCESS_FBINFO(devflags.memtype) = memtype;
2395 	if (memtype != -1)
2396 		noinit = 0;
2397 	if (cmd & PCI_COMMAND_MEMORY) {
2398 		ACCESS_FBINFO(devflags.novga) = novga;
2399 		ACCESS_FBINFO(devflags.nobios) = nobios;
2400 		ACCESS_FBINFO(devflags.noinit) = noinit;
2401 		/* subsequent heads always needs initialization and must not enable BIOS */
2402 		novga = 1;
2403 		nobios = 1;
2404 		noinit = 0;
2405 	} else {
2406 		ACCESS_FBINFO(devflags.novga) = 1;
2407 		ACCESS_FBINFO(devflags.nobios) = 1;
2408 		ACCESS_FBINFO(devflags.noinit) = 0;
2409 	}
2410 
2411 	ACCESS_FBINFO(devflags.nopciretry) = no_pci_retry;
2412 	ACCESS_FBINFO(devflags.mga_24bpp_fix) = inv24;
2413 	ACCESS_FBINFO(devflags.precise_width) = option_precise_width;
2414 	ACCESS_FBINFO(devflags.hwcursor) = hwcursor;
2415 	ACCESS_FBINFO(devflags.blink) = blink;
2416 	ACCESS_FBINFO(devflags.sgram) = sgram;
2417 	ACCESS_FBINFO(capable.cross4MB) = cross4MB;
2418 
2419 	ACCESS_FBINFO(fastfont.size) = fastfont;
2420 
2421 	ACCESS_FBINFO(cursor.state) = CM_ERASE;
2422 	init_timer (&ACCESS_FBINFO(cursor.timer));
2423 	ACCESS_FBINFO(cursor.timer.data) = (unsigned long)MINFO;
2424 	spin_lock_init(&ACCESS_FBINFO(lock.DAC));
2425 	spin_lock_init(&ACCESS_FBINFO(lock.accel));
2426 	init_rwsem(&ACCESS_FBINFO(crtc2.lock));
2427 	init_rwsem(&ACCESS_FBINFO(altout.lock));
2428 	ACCESS_FBINFO(irq_flags) = 0;
2429 	init_waitqueue_head(&ACCESS_FBINFO(crtc1.vsync.wait));
2430 	init_waitqueue_head(&ACCESS_FBINFO(crtc2.vsync.wait));
2431 	ACCESS_FBINFO(crtc1.panpos) = -1;
2432 
2433 	err = initMatrox2(PMINFO d, b);
2434 	if (!err) {
2435 #ifndef CONFIG_FB_MATROX_MULTIHEAD
2436 		registered = 1;
2437 #endif
2438 		matroxfb_register_device(MINFO);
2439 		return 0;
2440 	}
2441 #ifdef CONFIG_FB_MATROX_MULTIHEAD
2442 	kfree(d);
2443 	kfree(minfo);
2444 #endif
2445 	return -1;
2446 }
2447 
pci_remove_matrox(struct pci_dev * pdev)2448 static void pci_remove_matrox(struct pci_dev* pdev) {
2449 	struct matrox_fb_info* minfo;
2450 
2451 	minfo = pci_get_drvdata(pdev);
2452 	matroxfb_remove(PMINFO 1);
2453 }
2454 
2455 static struct pci_device_id matroxfb_devices[] __devinitdata = {
2456 #ifdef CONFIG_FB_MATROX_MILLENIUM
2457 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL,
2458 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2459 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL_2,
2460 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2461 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL_2_AGP,
2462 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2463 #endif
2464 #ifdef CONFIG_FB_MATROX_MYSTIQUE
2465 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MYS,
2466 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2467 #endif
2468 #ifdef CONFIG_FB_MATROX_G100
2469 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_MM,
2470 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2471 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G100_AGP,
2472 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2473 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_PCI,
2474 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2475 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G200_AGP,
2476 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2477 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G400,
2478 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2479 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_G550,
2480 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
2481 #endif
2482 	{0,			0,
2483 		0,		0,		0, 0, 0}
2484 };
2485 
2486 MODULE_DEVICE_TABLE(pci, matroxfb_devices);
2487 
2488 
2489 static struct pci_driver matroxfb_driver = {
2490 	name:		"matroxfb",
2491 	id_table:	matroxfb_devices,
2492 	probe:		matroxfb_probe,
2493 	remove:		pci_remove_matrox,
2494 };
2495 
2496 /* **************************** init-time only **************************** */
2497 
2498 #define RSResolution(X)	((X) & 0x0F)
2499 #define RS640x400	1
2500 #define RS640x480	2
2501 #define RS800x600	3
2502 #define RS1024x768	4
2503 #define RS1280x1024	5
2504 #define RS1600x1200	6
2505 #define RS768x576	7
2506 #define RS960x720	8
2507 #define RS1152x864	9
2508 #define RS1408x1056	10
2509 #define RS640x350	11
2510 #define RS1056x344	12	/* 132 x 43 text */
2511 #define RS1056x400	13	/* 132 x 50 text */
2512 #define RS1056x480	14	/* 132 x 60 text */
2513 #define RSNoxNo		15
2514 /* 10-FF */
2515 static struct { int xres, yres, left, right, upper, lower, hslen, vslen, vfreq; } timmings[] __initdata = {
2516 	{  640,  400,  48, 16, 39,  8,  96, 2, 70 },
2517 	{  640,  480,  48, 16, 33, 10,  96, 2, 60 },
2518 	{  800,  600, 144, 24, 28,  8, 112, 6, 60 },
2519 	{ 1024,  768, 160, 32, 30,  4, 128, 4, 60 },
2520 	{ 1280, 1024, 224, 32, 32,  4, 136, 4, 60 },
2521 	{ 1600, 1200, 272, 48, 32,  5, 152, 5, 60 },
2522 	{  768,  576, 144, 16, 28,  6, 112, 4, 60 },
2523 	{  960,  720, 144, 24, 28,  8, 112, 4, 60 },
2524 	{ 1152,  864, 192, 32, 30,  4, 128, 4, 60 },
2525 	{ 1408, 1056, 256, 40, 32,  5, 144, 5, 60 },
2526 	{  640,  350,  48, 16, 39,  8,  96, 2, 70 },
2527 	{ 1056,  344,  96, 24, 59, 44, 160, 2, 70 },
2528 	{ 1056,  400,  96, 24, 39,  8, 160, 2, 70 },
2529 	{ 1056,  480,  96, 24, 36, 12, 160, 3, 60 },
2530 	{    0,    0,  ~0, ~0, ~0, ~0,   0, 0,  0 }
2531 };
2532 
2533 #define RSCreate(X,Y)	((X) | ((Y) << 8))
2534 static struct { unsigned int vesa; unsigned int info; } *RSptr, vesamap[] __initdata = {
2535 /* default must be first */
2536 #ifdef FBCON_HAS_CFB8
2537 	{    ~0, RSCreate(RSNoxNo,     RS8bpp ) },
2538 	{ 0x101, RSCreate(RS640x480,   RS8bpp ) },
2539 	{ 0x100, RSCreate(RS640x400,   RS8bpp ) },
2540 	{ 0x180, RSCreate(RS768x576,   RS8bpp ) },
2541 	{ 0x103, RSCreate(RS800x600,   RS8bpp ) },
2542 	{ 0x188, RSCreate(RS960x720,   RS8bpp ) },
2543 	{ 0x105, RSCreate(RS1024x768,  RS8bpp ) },
2544 	{ 0x190, RSCreate(RS1152x864,  RS8bpp ) },
2545 	{ 0x107, RSCreate(RS1280x1024, RS8bpp ) },
2546 	{ 0x198, RSCreate(RS1408x1056, RS8bpp ) },
2547 	{ 0x11C, RSCreate(RS1600x1200, RS8bpp ) },
2548 #endif
2549 #ifdef FBCON_HAS_CFB16
2550 	{    ~0, RSCreate(RSNoxNo,     RS15bpp) },
2551 	{ 0x110, RSCreate(RS640x480,   RS15bpp) },
2552 	{ 0x181, RSCreate(RS768x576,   RS15bpp) },
2553 	{ 0x113, RSCreate(RS800x600,   RS15bpp) },
2554 	{ 0x189, RSCreate(RS960x720,   RS15bpp) },
2555 	{ 0x116, RSCreate(RS1024x768,  RS15bpp) },
2556 	{ 0x191, RSCreate(RS1152x864,  RS15bpp) },
2557 	{ 0x119, RSCreate(RS1280x1024, RS15bpp) },
2558 	{ 0x199, RSCreate(RS1408x1056, RS15bpp) },
2559 	{ 0x11D, RSCreate(RS1600x1200, RS15bpp) },
2560 	{ 0x111, RSCreate(RS640x480,   RS16bpp) },
2561 	{ 0x182, RSCreate(RS768x576,   RS16bpp) },
2562 	{ 0x114, RSCreate(RS800x600,   RS16bpp) },
2563 	{ 0x18A, RSCreate(RS960x720,   RS16bpp) },
2564 	{ 0x117, RSCreate(RS1024x768,  RS16bpp) },
2565 	{ 0x192, RSCreate(RS1152x864,  RS16bpp) },
2566 	{ 0x11A, RSCreate(RS1280x1024, RS16bpp) },
2567 	{ 0x19A, RSCreate(RS1408x1056, RS16bpp) },
2568 	{ 0x11E, RSCreate(RS1600x1200, RS16bpp) },
2569 #endif
2570 #ifdef FBCON_HAS_CFB24
2571 	{    ~0, RSCreate(RSNoxNo,     RS24bpp) },
2572 	{ 0x1B2, RSCreate(RS640x480,   RS24bpp) },
2573 	{ 0x184, RSCreate(RS768x576,   RS24bpp) },
2574 	{ 0x1B5, RSCreate(RS800x600,   RS24bpp) },
2575 	{ 0x18C, RSCreate(RS960x720,   RS24bpp) },
2576 	{ 0x1B8, RSCreate(RS1024x768,  RS24bpp) },
2577 	{ 0x194, RSCreate(RS1152x864,  RS24bpp) },
2578 	{ 0x1BB, RSCreate(RS1280x1024, RS24bpp) },
2579 	{ 0x19C, RSCreate(RS1408x1056, RS24bpp) },
2580 	{ 0x1BF, RSCreate(RS1600x1200, RS24bpp) },
2581 #endif
2582 #ifdef FBCON_HAS_CFB32
2583 	{    ~0, RSCreate(RSNoxNo,     RS32bpp) },
2584 	{ 0x112, RSCreate(RS640x480,   RS32bpp) },
2585 	{ 0x183, RSCreate(RS768x576,   RS32bpp) },
2586 	{ 0x115, RSCreate(RS800x600,   RS32bpp) },
2587 	{ 0x18B, RSCreate(RS960x720,   RS32bpp) },
2588 	{ 0x118, RSCreate(RS1024x768,  RS32bpp) },
2589 	{ 0x193, RSCreate(RS1152x864,  RS32bpp) },
2590 	{ 0x11B, RSCreate(RS1280x1024, RS32bpp) },
2591 	{ 0x19B, RSCreate(RS1408x1056, RS32bpp) },
2592 	{ 0x11F, RSCreate(RS1600x1200, RS32bpp) },
2593 #endif
2594 #ifdef FBCON_HAS_VGATEXT
2595 	{    ~0, RSCreate(RSNoxNo,     RSText ) },
2596 	{ 0x002, RSCreate(RS640x400,   RSText ) },	/* 80x25 */
2597 	{ 0x003, RSCreate(RS640x400,   RSText ) },	/* 80x25 */
2598 	{ 0x007, RSCreate(RS640x400,   RSText ) },	/* 80x25 */
2599 	{ 0x1C0, RSCreate(RS640x400,   RSText8) },	/* 80x50 */
2600 	{ 0x108, RSCreate(RS640x480,   RSText8) },	/* 80x60 */
2601 	{ 0x109, RSCreate(RS1056x400,  RSText ) },	/* 132x25 */
2602 	{ 0x10A, RSCreate(RS1056x344,  RSText8) },	/* 132x43 */
2603 	{ 0x10B, RSCreate(RS1056x400,  RSText8) },	/* 132x50 */
2604 	{ 0x10C, RSCreate(RS1056x480,  RSText8) },	/* 132x60 */
2605 #endif
2606 #ifdef FBCON_HAS_CFB4
2607 	{    ~0, RSCreate(RSNoxNo,     RS4bpp ) },
2608 	{ 0x010, RSCreate(RS640x350,   RS4bpp ) },
2609 	{ 0x012, RSCreate(RS640x480,   RS4bpp ) },
2610 	{ 0x102, RSCreate(RS800x600,   RS4bpp ) },
2611 	{ 0x104, RSCreate(RS1024x768,  RS4bpp ) },
2612 	{ 0x106, RSCreate(RS1280x1024, RS4bpp ) },
2613 #endif
2614 	{     0, 0				}};
2615 
matroxfb_init_params(void)2616 static void __init matroxfb_init_params(void) {
2617 	/* fh from kHz to Hz */
2618 	if (fh < 1000)
2619 		fh *= 1000;	/* 1kHz minimum */
2620 	/* maxclk */
2621 	if (maxclk < 1000) maxclk *= 1000;	/* kHz -> Hz, MHz -> kHz */
2622 	if (maxclk < 1000000) maxclk *= 1000;	/* kHz -> Hz, 1MHz minimum */
2623 	/* fix VESA number */
2624 	if (vesa != ~0)
2625 		vesa &= 0x1DFF;		/* mask out clearscreen, acceleration and so on */
2626 
2627 	/* static settings */
2628 	for (RSptr = vesamap; RSptr->vesa; RSptr++) {
2629 		if (RSptr->vesa == vesa) break;
2630 	}
2631 	if (!RSptr->vesa) {
2632 		printk(KERN_ERR "Invalid vesa mode 0x%04X\n", vesa);
2633 		RSptr = vesamap;
2634 	}
2635 	{
2636 		int res = RSResolution(RSptr->info)-1;
2637 		if (left == ~0)
2638 			left = timmings[res].left;
2639 		if (!xres)
2640 			xres = timmings[res].xres;
2641 		if (right == ~0)
2642 			right = timmings[res].right;
2643 		if (!hslen)
2644 			hslen = timmings[res].hslen;
2645 		if (upper == ~0)
2646 			upper = timmings[res].upper;
2647 		if (!yres)
2648 			yres = timmings[res].yres;
2649 		if (lower == ~0)
2650 			lower = timmings[res].lower;
2651 		if (!vslen)
2652 			vslen = timmings[res].vslen;
2653 		if (!(fv||fh||maxclk||pixclock))
2654 			fv = timmings[res].vfreq;
2655 		if (depth == -1)
2656 			depth = RSDepth(RSptr->info);
2657 	}
2658 }
2659 
matrox_init(void)2660 static void __init matrox_init(void) {
2661 	matroxfb_init_params();
2662 	pci_register_driver(&matroxfb_driver);
2663 	dev = -1;	/* accept all new devices... */
2664 }
2665 
2666 /* **************************** exit-time only **************************** */
2667 
matrox_done(void)2668 static void __exit matrox_done(void) {
2669 	pci_unregister_driver(&matroxfb_driver);
2670 }
2671 
2672 #ifndef MODULE
2673 
2674 /* ************************* init in-kernel code ************************** */
2675 
matroxfb_setup(char * options)2676 int __init matroxfb_setup(char *options) {
2677 	char *this_opt;
2678 
2679 	DBG("matroxfb_setup")
2680 
2681 	fontname[0] = '\0';
2682 
2683 	if (!options || !*options)
2684 		return 0;
2685 
2686 	while ((this_opt = strsep(&options, ",")) != NULL) {
2687 		if (!*this_opt) continue;
2688 
2689 		dprintk("matroxfb_setup: option %s\n", this_opt);
2690 
2691 		if (!strncmp(this_opt, "dev:", 4))
2692 			dev = simple_strtoul(this_opt+4, NULL, 0);
2693 		else if (!strncmp(this_opt, "depth:", 6)) {
2694 			switch (simple_strtoul(this_opt+6, NULL, 0)) {
2695 				case 0: depth = RSText; break;
2696 				case 4: depth = RS4bpp; break;
2697 				case 8: depth = RS8bpp; break;
2698 				case 15:depth = RS15bpp; break;
2699 				case 16:depth = RS16bpp; break;
2700 				case 24:depth = RS24bpp; break;
2701 				case 32:depth = RS32bpp; break;
2702 				default:
2703 					printk(KERN_ERR "matroxfb: unsupported color depth\n");
2704 			}
2705 		} else if (!strncmp(this_opt, "xres:", 5))
2706 			xres = simple_strtoul(this_opt+5, NULL, 0);
2707 		else if (!strncmp(this_opt, "yres:", 5))
2708 			yres = simple_strtoul(this_opt+5, NULL, 0);
2709 		else if (!strncmp(this_opt, "vslen:", 6))
2710 			vslen = simple_strtoul(this_opt+6, NULL, 0);
2711 		else if (!strncmp(this_opt, "hslen:", 6))
2712 			hslen = simple_strtoul(this_opt+6, NULL, 0);
2713 		else if (!strncmp(this_opt, "left:", 5))
2714 			left = simple_strtoul(this_opt+5, NULL, 0);
2715 		else if (!strncmp(this_opt, "right:", 6))
2716 			right = simple_strtoul(this_opt+6, NULL, 0);
2717 		else if (!strncmp(this_opt, "upper:", 6))
2718 			upper = simple_strtoul(this_opt+6, NULL, 0);
2719 		else if (!strncmp(this_opt, "lower:", 6))
2720 			lower = simple_strtoul(this_opt+6, NULL, 0);
2721 		else if (!strncmp(this_opt, "pixclock:", 9))
2722 			pixclock = simple_strtoul(this_opt+9, NULL, 0);
2723 		else if (!strncmp(this_opt, "sync:", 5))
2724 			sync = simple_strtoul(this_opt+5, NULL, 0);
2725 		else if (!strncmp(this_opt, "vesa:", 5))
2726 			vesa = simple_strtoul(this_opt+5, NULL, 0);
2727 		else if (!strncmp(this_opt, "font:", 5))
2728 			strncpy(fontname, this_opt+5, sizeof(fontname)-1);
2729 		else if (!strncmp(this_opt, "maxclk:", 7))
2730 			maxclk = simple_strtoul(this_opt+7, NULL, 0);
2731 		else if (!strncmp(this_opt, "fh:", 3))
2732 			fh = simple_strtoul(this_opt+3, NULL, 0);
2733 		else if (!strncmp(this_opt, "fv:", 3))
2734 			fv = simple_strtoul(this_opt+3, NULL, 0);
2735 		else if (!strncmp(this_opt, "mem:", 4))
2736 			mem = simple_strtoul(this_opt+4, NULL, 0);
2737 		else if (!strncmp(this_opt, "mode:", 5))
2738 			strncpy(videomode, this_opt+5, sizeof(videomode)-1);
2739 		else if (!strncmp(this_opt, "dfp:", 4)) {
2740 			dfp_type = simple_strtoul(this_opt+4, NULL, 0);
2741 			dfp = 1;
2742 		}
2743 #ifdef CONFIG_PPC
2744 		else if (!strncmp(this_opt, "vmode:", 6)) {
2745 			unsigned int vmode = simple_strtoul(this_opt+6, NULL, 0);
2746 			if (vmode > 0 && vmode <= VMODE_MAX)
2747 				default_vmode = vmode;
2748 		} else if (!strncmp(this_opt, "cmode:", 6)) {
2749 			unsigned int cmode = simple_strtoul(this_opt+6, NULL, 0);
2750 			switch (cmode) {
2751 				case 0:
2752 				case 8:
2753 					default_cmode = CMODE_8;
2754 					break;
2755 				case 15:
2756 				case 16:
2757 					default_cmode = CMODE_16;
2758 					break;
2759 				case 24:
2760 				case 32:
2761 					default_cmode = CMODE_32;
2762 					break;
2763 			}
2764 		}
2765 #endif
2766 		else if (!strncmp(this_opt, "fastfont:", 9))
2767 			fastfont = simple_strtoul(this_opt+9, NULL, 0);
2768 		else if (!strcmp(this_opt, "nofastfont"))	/* fastfont:N and nofastfont (nofastfont = fastfont:0) */
2769 			fastfont = 0;
2770 		else if (!strcmp(this_opt, "disabled"))	/* nodisabled does not exist */
2771 			disabled = 1;
2772 		else if (!strcmp(this_opt, "enabled"))	/* noenabled does not exist */
2773 			disabled = 0;
2774 		else if (!strcmp(this_opt, "sgram"))	/* nosgram == sdram */
2775 			sgram = 1;
2776 		else if (!strcmp(this_opt, "sdram"))
2777 			sgram = 0;
2778 		else if (!strncmp(this_opt, "memtype:", 8))
2779 			memtype = simple_strtoul(this_opt+8, NULL, 0);
2780 		else {
2781 			int value = 1;
2782 
2783 			if (!strncmp(this_opt, "no", 2)) {
2784 				value = 0;
2785 				this_opt += 2;
2786 			}
2787 			if (! strcmp(this_opt, "inverse"))
2788 				inverse = value;
2789 			else if (!strcmp(this_opt, "accel"))
2790 				noaccel = !value;
2791 			else if (!strcmp(this_opt, "pan"))
2792 				nopan = !value;
2793 			else if (!strcmp(this_opt, "pciretry"))
2794 				no_pci_retry = !value;
2795 			else if (!strcmp(this_opt, "vga"))
2796 				novga = !value;
2797 			else if (!strcmp(this_opt, "bios"))
2798 				nobios = !value;
2799 			else if (!strcmp(this_opt, "init"))
2800 				noinit = !value;
2801 #ifdef CONFIG_MTRR
2802 			else if (!strcmp(this_opt, "mtrr"))
2803 				mtrr = value;
2804 #endif
2805 			else if (!strcmp(this_opt, "inv24"))
2806 				inv24 = value;
2807 			else if (!strcmp(this_opt, "cross4MB"))
2808 				cross4MB = value;
2809 			else if (!strcmp(this_opt, "hwcursor"))
2810 				hwcursor = value;
2811 			else if (!strcmp(this_opt, "blink"))
2812 				blink = value;
2813 			else if (!strcmp(this_opt, "grayscale"))
2814 				grayscale = value;
2815 			else if (!strcmp(this_opt, "dfp"))
2816 				dfp = value;
2817 			else {
2818 				strncpy(videomode, this_opt, sizeof(videomode)-1);
2819 			}
2820 		}
2821 	}
2822 	return 0;
2823 }
2824 
2825 static int __initdata initialized = 0;
2826 
matroxfb_init(void)2827 int __init matroxfb_init(void)
2828 {
2829 	DBG("matroxfb_init")
2830 
2831 	if (disabled)
2832 		return -ENXIO;
2833 	if (!initialized) {
2834 		initialized = 1;
2835 		matrox_init();
2836 	}
2837 	hotplug = 1;
2838 	/* never return failure, user can hotplug matrox later... */
2839 	return 0;
2840 }
2841 
2842 #else
2843 
2844 /* *************************** init module code **************************** */
2845 
2846 MODULE_AUTHOR("(c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>");
2847 MODULE_DESCRIPTION("Accelerated FBDev driver for Matrox Millennium/Mystique/G100/G200/G400/G450/G550");
2848 MODULE_LICENSE("GPL");
2849 
2850 MODULE_PARM(mem, "i");
2851 MODULE_PARM_DESC(mem, "Size of available memory in MB, KB or B (2,4,8,12,16MB, default=autodetect)");
2852 MODULE_PARM(disabled, "i");
2853 MODULE_PARM_DESC(disabled, "Disabled (0 or 1=disabled) (default=0)");
2854 MODULE_PARM(noaccel, "i");
2855 MODULE_PARM_DESC(noaccel, "Do not use accelerating engine (0 or 1=disabled) (default=0)");
2856 MODULE_PARM(nopan, "i");
2857 MODULE_PARM_DESC(nopan, "Disable pan on startup (0 or 1=disabled) (default=0)");
2858 MODULE_PARM(no_pci_retry, "i");
2859 MODULE_PARM_DESC(no_pci_retry, "PCI retries enabled (0 or 1=disabled) (default=0)");
2860 MODULE_PARM(novga, "i");
2861 MODULE_PARM_DESC(novga, "VGA I/O (0x3C0-0x3DF) disabled (0 or 1=disabled) (default=0)");
2862 MODULE_PARM(nobios, "i");
2863 MODULE_PARM_DESC(nobios, "Disables ROM BIOS (0 or 1=disabled) (default=do not change BIOS state)");
2864 MODULE_PARM(noinit, "i");
2865 MODULE_PARM_DESC(noinit, "Disables W/SG/SD-RAM and bus interface initialization (0 or 1=do not initialize) (default=0)");
2866 MODULE_PARM(memtype, "i");
2867 MODULE_PARM_DESC(memtype, "Memory type for G200/G400 (see Documentation/fb/matroxfb.txt for explanation) (default=3 for G200, 0 for G400)");
2868 MODULE_PARM(mtrr, "i");
2869 MODULE_PARM_DESC(mtrr, "This speeds up video memory accesses (0=disabled or 1) (default=1)");
2870 MODULE_PARM(sgram, "i");
2871 MODULE_PARM_DESC(sgram, "Indicates that G100/G200/G400 has SGRAM memory (0=SDRAM, 1=SGRAM) (default=0)");
2872 MODULE_PARM(inv24, "i");
2873 MODULE_PARM_DESC(inv24, "Inverts clock polarity for 24bpp and loop frequency > 100MHz (default=do not invert polarity)");
2874 MODULE_PARM(inverse, "i");
2875 MODULE_PARM_DESC(inverse, "Inverse (0 or 1) (default=0)");
2876 #ifdef CONFIG_FB_MATROX_MULTIHEAD
2877 MODULE_PARM(dev, "i");
2878 MODULE_PARM_DESC(dev, "Multihead support, attach to device ID (0..N) (default=all working)");
2879 #else
2880 MODULE_PARM(dev, "i");
2881 MODULE_PARM_DESC(dev, "Multihead support, attach to device ID (0..N) (default=first working)");
2882 #endif
2883 MODULE_PARM(vesa, "i");
2884 MODULE_PARM_DESC(vesa, "Startup videomode (0x000-0x1FF) (default=0x101)");
2885 MODULE_PARM(xres, "i");
2886 MODULE_PARM_DESC(xres, "Horizontal resolution (px), overrides xres from vesa (default=vesa)");
2887 MODULE_PARM(yres, "i");
2888 MODULE_PARM_DESC(yres, "Vertical resolution (scans), overrides yres from vesa (default=vesa)");
2889 MODULE_PARM(upper, "i");
2890 MODULE_PARM_DESC(upper, "Upper blank space (scans), overrides upper from vesa (default=vesa)");
2891 MODULE_PARM(lower, "i");
2892 MODULE_PARM_DESC(lower, "Lower blank space (scans), overrides lower from vesa (default=vesa)");
2893 MODULE_PARM(vslen, "i");
2894 MODULE_PARM_DESC(vslen, "Vertical sync length (scans), overrides lower from vesa (default=vesa)");
2895 MODULE_PARM(left, "i");
2896 MODULE_PARM_DESC(left, "Left blank space (px), overrides left from vesa (default=vesa)");
2897 MODULE_PARM(right, "i");
2898 MODULE_PARM_DESC(right, "Right blank space (px), overrides right from vesa (default=vesa)");
2899 MODULE_PARM(hslen, "i");
2900 MODULE_PARM_DESC(hslen, "Horizontal sync length (px), overrides hslen from vesa (default=vesa)");
2901 MODULE_PARM(pixclock, "i");
2902 MODULE_PARM_DESC(pixclock, "Pixelclock (ns), overrides pixclock from vesa (default=vesa)");
2903 MODULE_PARM(sync, "i");
2904 MODULE_PARM_DESC(sync, "Sync polarity, overrides sync from vesa (default=vesa)");
2905 MODULE_PARM(depth, "i");
2906 MODULE_PARM_DESC(depth, "Color depth (0=text,8,15,16,24,32) (default=vesa)");
2907 MODULE_PARM(maxclk, "i");
2908 MODULE_PARM_DESC(maxclk, "Startup maximal clock, 0-999MHz, 1000-999999kHz, 1000000-INF Hz");
2909 MODULE_PARM(fh, "i");
2910 MODULE_PARM_DESC(fh, "Startup horizontal frequency, 0-999kHz, 1000-INF Hz");
2911 MODULE_PARM(fv, "i");
2912 MODULE_PARM_DESC(fv, "Startup vertical frequency, 0-INF Hz\n"
2913 "You should specify \"fv:max_monitor_vsync,fh:max_monitor_hsync,maxclk:max_monitor_dotclock\"\n");
2914 MODULE_PARM(hwcursor, "i");
2915 MODULE_PARM_DESC(hwcursor, "Enables hardware cursor (0 or 1) (default=0)");
2916 MODULE_PARM(blink, "i");
2917 MODULE_PARM_DESC(blink, "Enables hardware cursor blinking (0 or 1) (default=1)");
2918 MODULE_PARM(fastfont, "i");
2919 MODULE_PARM_DESC(fastfont, "Specifies, how much memory should be used for font data (0, 1024-65536 are reasonable) (default=0)");
2920 MODULE_PARM(grayscale, "i");
2921 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)");
2922 MODULE_PARM(cross4MB, "i");
2923 MODULE_PARM_DESC(cross4MB, "Specifies that 4MB boundary can be in middle of line. (default=autodetected)");
2924 MODULE_PARM(dfp, "i");
2925 MODULE_PARM_DESC(dfp, "Specifies whether to use digital flat panel interface of G200/G400 (0 or 1) (default=0)");
2926 MODULE_PARM(dfp_type, "i");
2927 MODULE_PARM_DESC(dfp_type, "Specifies DFP interface type (0 to 255) (default=read from hardware)");
2928 #ifdef CONFIG_PPC
2929 MODULE_PARM(vmode, "i");
2930 MODULE_PARM_DESC(vmode, "Specify the vmode mode number that should be used (640x480 default)");
2931 MODULE_PARM(cmode, "i");
2932 MODULE_PARM_DESC(cmode, "Specify the video depth that should be used (8bit default)");
2933 #endif
2934 
init_module(void)2935 int __init init_module(void){
2936 
2937 	DBG("init_module")
2938 
2939 	if (disabled)
2940 		return -ENXIO;
2941 
2942 	if (depth == 0)
2943 		depth = RSText;
2944 	else if (depth == 4)
2945 		depth = RS4bpp;
2946 	else if (depth == 8)
2947 		depth = RS8bpp;
2948 	else if (depth == 15)
2949 		depth = RS15bpp;
2950 	else if (depth == 16)
2951 		depth = RS16bpp;
2952 	else if (depth == 24)
2953 		depth = RS24bpp;
2954 	else if (depth == 32)
2955 		depth = RS32bpp;
2956 	else if (depth != -1) {
2957 		printk(KERN_ERR "matroxfb: depth %d is not supported, using default\n", depth);
2958 		depth = -1;
2959 	}
2960 	matrox_init();
2961 	/* never return failure; user can hotplug matrox later... */
2962 	return 0;
2963 }
2964 #endif	/* MODULE */
2965 
2966 module_exit(matrox_done);
2967 EXPORT_SYMBOL(matroxfb_register_driver);
2968 EXPORT_SYMBOL(matroxfb_unregister_driver);
2969 EXPORT_SYMBOL(matroxfb_switch);
2970 EXPORT_SYMBOL(matroxfb_wait_for_sync);
2971 EXPORT_SYMBOL(matroxfb_enable_irq);
2972 
2973 /*
2974  * Overrides for Emacs so that we follow Linus's tabbing style.
2975  * ---------------------------------------------------------------------------
2976  * Local variables:
2977  * c-basic-offset: 8
2978  * End:
2979  */
2980