summaryrefslogtreecommitdiffstats
path: root/drivers/video/fbdev/matrox/matroxfb_Ti3026.c
blob: 5617c014da87b4ea16f2d129a22fd144b725d321 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
// SPDX-License-Identifier: GPL-2.0-only
/*
 *
 * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200 and G400
 *
 * (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
 *
 * Portions Copyright (c) 2001 Matrox Graphics Inc.
 *
 * Version: 1.65 2002/08/14
 *
 * MTRR stuff: 1998 Tom Rini <trini@kernel.crashing.org>
 *
 * Contributors: "menion?" <menion@mindless.com>
 *                     Betatesting, fixes, ideas
 *
 *               "Kurt Garloff" <garloff@suse.de>
 *                     Betatesting, fixes, ideas, videomodes, videomodes timmings
 *
 *               "Tom Rini" <trini@kernel.crashing.org>
 *                     MTRR stuff, PPC cleanups, betatesting, fixes, ideas
 *
 *               "Bibek Sahu" <scorpio@dodds.net>
 *                     Access device through readb|w|l and write b|w|l
 *                     Extensive debugging stuff
 *
 *               "Daniel Haun" <haund@usa.net>
 *                     Testing, hardware cursor fixes
 *
 *               "Scott Wood" <sawst46+@pitt.edu>
 *                     Fixes
 *
 *               "Gerd Knorr" <kraxel@goldbach.isdn.cs.tu-berlin.de>
 *                     Betatesting
 *
 *               "Kelly French" <targon@hazmat.com>
 *               "Fernando Herrera" <fherrera@eurielec.etsit.upm.es>
 *                     Betatesting, bug reporting
 *
 *               "Pablo Bianucci" <pbian@pccp.com.ar>
 *                     Fixes, ideas, betatesting
 *
 *               "Inaky Perez Gonzalez" <inaky@peloncho.fis.ucm.es>
 *                     Fixes, enhandcements, ideas, betatesting
 *
 *               "Ryuichi Oikawa" <roikawa@rr.iiij4u.or.jp>
 *                     PPC betatesting, PPC support, backward compatibility
 *
 *               "Paul Womar" <Paul@pwomar.demon.co.uk>
 *               "Owen Waller" <O.Waller@ee.qub.ac.uk>
 *                     PPC betatesting
 *
 *               "Thomas Pornin" <pornin@bolet.ens.fr>
 *                     Alpha betatesting
 *
 *               "Pieter van Leuven" <pvl@iae.nl>
 *               "Ulf Jaenicke-Roessler" <ujr@physik.phy.tu-dresden.de>
 *                     G100 testing
 *
 *               "H. Peter Arvin" <hpa@transmeta.com>
 *                     Ideas
 *
 *               "Cort Dougan" <cort@cs.nmt.edu>
 *                     CHRP fixes and PReP cleanup
 *
 *               "Mark Vojkovich" <mvojkovi@ucsd.edu>
 *                     G400 support
 *
 * (following author is not in any relation with this code, but his code
 *  is included in this driver)
 *
 * Based on framebuffer driver for VBE 2.0 compliant graphic boards
 *     (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
 *
 * (following author is not in any relation with this code, but his ideas
 *  were used when writing this driver)
 *
 *		 FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
 *
 */


#include "matroxfb_Ti3026.h"
#include "matroxfb_misc.h"
#include "matroxfb_accel.h"
#include <linux/matroxfb.h>

#ifdef CONFIG_FB_MATROX_MILLENIUM
#define outTi3026 matroxfb_DAC_out
#define inTi3026 matroxfb_DAC_in

#define TVP3026_INDEX		0x00
#define TVP3026_PALWRADD	0x00
#define TVP3026_PALDATA		0x01
#define TVP3026_PIXRDMSK	0x02
#define TVP3026_PALRDADD	0x03
#define TVP3026_CURCOLWRADD	0x04
#define     TVP3026_CLOVERSCAN		0x00
#define     TVP3026_CLCOLOR0		0x01
#define     TVP3026_CLCOLOR1		0x02
#define     TVP3026_CLCOLOR2		0x03
#define TVP3026_CURCOLDATA	0x05
#define TVP3026_CURCOLRDADD	0x07
#define TVP3026_CURCTRL		0x09
#define TVP3026_X_DATAREG	0x0A
#define TVP3026_CURRAMDATA	0x0B
#define TVP3026_CURPOSXL	0x0C
#define TVP3026_CURPOSXH	0x0D
#define TVP3026_CURPOSYL	0x0E
#define TVP3026_CURPOSYH	0x0F

#define TVP3026_XSILICONREV	0x01
#define TVP3026_XCURCTRL	0x06
#define     TVP3026_XCURCTRL_DIS	0x00	/* transparent, transparent, transparent, transparent */
#define     TVP3026_XCURCTRL_3COLOR	0x01	/* transparent, 0, 1, 2 */
#define     TVP3026_XCURCTRL_XGA	0x02	/* 0, 1, transparent, complement */
#define     TVP3026_XCURCTRL_XWIN	0x03	/* transparent, transparent, 0, 1 */
#define     TVP3026_XCURCTRL_BLANK2048	0x00
#define     TVP3026_XCURCTRL_BLANK4096	0x10
#define     TVP3026_XCURCTRL_INTERLACED	0x20
#define     TVP3026_XCURCTRL_ODD	0x00 /* ext.signal ODD/\EVEN */
#define     TVP3026_XCURCTRL_EVEN	0x40 /* ext.signal EVEN/\ODD */
#define     TVP3026_XCURCTRL_INDIRECT	0x00
#define     TVP3026_XCURCTRL_DIRECT	0x80
#define TVP3026_XLATCHCTRL	0x0F
#define     TVP3026_XLATCHCTRL_1_1	0x06
#define     TVP3026_XLATCHCTRL_2_1	0x07
#define     TVP3026_XLATCHCTRL_4_1	0x06
#define     TVP3026_XLATCHCTRL_8_1	0x06
#define     TVP3026_XLATCHCTRL_16_1	0x06
#define     TVP3026A_XLATCHCTRL_4_3	0x06	/* ??? do not understand... but it works... !!! */
#define     TVP3026A_XLATCHCTRL_8_3	0x07
#define     TVP3026B_XLATCHCTRL_4_3	0x08
#define     TVP3026B_XLATCHCTRL_8_3	0x06	/* ??? do not understand... but it works... !!! */
#define TVP3026_XTRUECOLORCTRL	0x18
#define     TVP3026_XTRUECOLORCTRL_VRAM_SHIFT_ACCEL	0x00
#define     TVP3026_XTRUECOLORCTRL_VRAM_SHIFT_TVP	0x20
#define     TVP3026_XTRUECOLORCTRL_PSEUDOCOLOR		0x80
#define     TVP3026_XTRUECOLORCTRL_TRUECOLOR		0x40 /* paletized */
#define     TVP3026_XTRUECOLORCTRL_DIRECTCOLOR		0x00
#define     TVP3026_XTRUECOLORCTRL_24_ALTERNATE		0x08 /* 5:4/5:2 instead of 4:3/8:3 */
#define     TVP3026_XTRUECOLORCTRL_RGB_888		0x16 /* 4:3/8:3 (or 5:4/5:2) */
#define	    TVP3026_XTRUECOLORCTRL_BGR_888		0x17
#define     TVP3026_XTRUECOLORCTRL_ORGB_8888		0x06
#define     TVP3026_XTRUECOLORCTRL_BGRO_8888		0x07
#define     TVP3026_XTRUECOLORCTRL_RGB_565		0x05
#define     TVP3026_XTRUECOLORCTRL_ORGB_1555		0x04
#define     TVP3026_XTRUECOLORCTRL_RGB_664		0x03
#define     TVP3026_XTRUECOLORCTRL_RGBO_4444		0x01
#define TVP3026_XMUXCTRL	0x19
#define     TVP3026_XMUXCTRL_MEMORY_8BIT			0x01 /* - */
#define     TVP3026_XMUXCTRL_MEMORY_16BIT			0x02 /* - */
#define     TVP3026_XMUXCTRL_MEMORY_32BIT			0x03 /* 2MB RAM, 512K * 4 */
#define     TVP3026_XMUXCTRL_MEMORY_64BIT			0x04 /* >2MB RAM, 512K * 8 & more */
#define     TVP3026_XMUXCTRL_PIXEL_4BIT				0x40 /* L0,H0,L1,H1... */
#define     TVP3026_XMUXCTRL_PIXEL_4BIT_SWAPPED			0x60 /* H0,L0,H1,L1... */
#define     TVP3026_XMUXCTRL_PIXEL_8BIT				0x48
#define     TVP3026_XMUXCTRL_PIXEL_16BIT			0x50
#define     TVP3026_XMUXCTRL_PIXEL_32BIT			0x58
#define     TVP3026_XMUXCTRL_VGA				0x98 /* VGA MEMORY, 8BIT PIXEL */
#define TVP3026_XCLKCTRL	0x1A
#define     TVP3026_XCLKCTRL_DIV1	0x00
#define     TVP3026_XCLKCTRL_DIV2	0x10
#define     TVP3026_XCLKCTRL_DIV4	0x20
#define     TVP3026_XCLKCTRL_DIV8	0x30
#define     TVP3026_XCLKCTRL_DIV16	0x40
#define     TVP3026_XCLKCTRL_DIV32	0x50
#define     TVP3026_XCLKCTRL_DIV64	0x60
#define     TVP3026_XCLKCTRL_CLKSTOPPED	0x70
#define     TVP3026_XCLKCTRL_SRC_CLK0	0x00
#define     TVP3026_XCLKCTRL_SRC_CLK1   0x01
#define     TVP3026_XCLKCTRL_SRC_CLK2	0x02	/* CLK2 is TTL source*/
#define     TVP3026_XCLKCTRL_SRC_NCLK2	0x03	/* not CLK2 is TTL source */
#define     TVP3026_XCLKCTRL_SRC_ECLK2	0x04	/* CLK2 and not CLK2 is ECL source */
#define     TVP3026_XCLKCTRL_SRC_PLL	0x05
#define     TVP3026_XCLKCTRL_SRC_DIS	0x06	/* disable & poweroff internal clock */
#define     TVP3026_XCLKCTRL_SRC_CLK0VGA 0x07
#define TVP3026_XPALETTEPAGE	0x1C
#define TVP3026_XGENCTRL	0x1D
#define     TVP3026_XGENCTRL_HSYNC_POS	0x00
#define     TVP3026_XGENCTRL_HSYNC_NEG	0x01
#define     TVP3026_XGENCTRL_VSYNC_POS	0x00
#define     TVP3026_XGENCTRL_VSYNC_NEG	0x02
#define     TVP3026_XGENCTRL_LITTLE_ENDIAN 0x00
#define     TVP3026_XGENCTRL_BIG_ENDIAN    0x08
#define     TVP3026_XGENCTRL_BLACK_0IRE		0x00
#define     TVP3026_XGENCTRL_BLACK_75IRE	0x10
#define     TVP3026_XGENCTRL_NO_SYNC_ON_GREEN	0x00
#define     TVP3026_XGENCTRL_SYNC_ON_GREEN	0x20
#define     TVP3026_XGENCTRL_OVERSCAN_DIS	0x00
#define     TVP3026_XGENCTRL_OVERSCAN_EN	0x40
#define TVP3026_XMISCCTRL	0x1E
#define     TVP3026_XMISCCTRL_DAC_PUP	0x00
#define     TVP3026_XMISCCTRL_DAC_PDOWN	0x01
#define     TVP3026_XMISCCTRL_DAC_EXT	0x00 /* or 8, bit 3 is ignored */
#define     TVP3026_XMISCCTRL_DAC_6BIT	0x04
#define     TVP3026_XMISCCTRL_DAC_8BIT	0x0C
#define     TVP3026_XMISCCTRL_PSEL_DIS	0x00
#define     TVP3026_XMISCCTRL_PSEL_EN	0x10
#define     TVP3026_XMISCCTRL_PSEL_LOW	0x00 /* PSEL high selects directcolor */
#define     TVP3026_XMISCCTRL_PSEL_HIGH 0x20 /* PSEL high selects truecolor or pseudocolor */
#define TVP3026_XGENIOCTRL	0x2A
#define TVP3026_XGENIODATA	0x2B
#define TVP3026_XPLLADDR	0x2C
#define     TVP3026_XPLLADDR_X(LOOP,MCLK,PIX) (((LOOP)<<4) | ((MCLK)<<2) | (PIX))
#define     TVP3026_XPLLDATA_N		0x00
#define     TVP3026_XPLLDATA_M		0x01
#define     TVP3026_XPLLDATA_P		0x02
#define     TVP3026_XPLLDATA_STAT	0x03
#define TVP3026_XPIXPLLDATA	0x2D
#define TVP3026_XMEMPLLDATA	0x2E
#define TVP3026_XLOOPPLLDATA	0x2F
#define TVP3026_XCOLKEYOVRMIN	0x30
#define TVP3026_XCOLKEYOVRMAX	0x31
#define TVP3026_XCOLKEYREDMIN	0x32
#define TVP3026_XCOLKEYREDMAX	0x33
#define TVP3026_XCOLKEYGREENMIN	0x34
#define TVP3026_XCOLKEYGREENMAX	0x35
#define TVP3026_XCOLKEYBLUEMIN	0x36
#define TVP3026_XCOLKEYBLUEMAX	0x37
#define TVP3026_XCOLKEYCTRL	0x38
#define     TVP3026_XCOLKEYCTRL_OVR_EN	0x01
#define     TVP3026_XCOLKEYCTRL_RED_EN	0x02
#define     TVP3026_XCOLKEYCTRL_GREEN_EN 0x04
#define     TVP3026_XCOLKEYCTRL_BLUE_EN	0x08
#define     TVP3026_XCOLKEYCTRL_NEGATE	0x10
#define     TVP3026_XCOLKEYCTRL_ZOOM1	0x00
#define     TVP3026_XCOLKEYCTRL_ZOOM2	0x20
#define     TVP3026_XCOLKEYCTRL_ZOOM4	0x40
#define     TVP3026_XCOLKEYCTRL_ZOOM8	0x60
#define     TVP3026_XCOLKEYCTRL_ZOOM16	0x80
#define     TVP3026_XCOLKEYCTRL_ZOOM32	0xA0
#define TVP3026_XMEMPLLCTRL	0x39
#define     TVP3026_XMEMPLLCTRL_DIV(X)	(((X)-1)>>1)	/* 2,4,6,8,10,12,14,16, division applied to LOOP PLL after divide by 2^P */
#define     TVP3026_XMEMPLLCTRL_STROBEMKC4	0x08
#define     TVP3026_XMEMPLLCTRL_MCLK_DOTCLOCK	0x00	/* MKC4 */
#define     TVP3026_XMEMPLLCTRL_MCLK_MCLKPLL	0x10	/* MKC4 */
#define     TVP3026_XMEMPLLCTRL_RCLK_PIXPLL	0x00
#define     TVP3026_XMEMPLLCTRL_RCLK_LOOPPLL	0x20
#define     TVP3026_XMEMPLLCTRL_RCLK_DOTDIVN	0x40	/* dot clock divided by loop pclk N prescaler */
#define TVP3026_XSENSETEST	0x3A
#define TVP3026_XTESTMODEDATA	0x3B
#define TVP3026_XCRCREML	0x3C
#define TVP3026_XCRCREMH	0x3D
#define TVP3026_XCRCBITSEL	0x3E
#define TVP3026_XID		0x3F

static const unsigned char DACseq[] =
{ TVP3026_XLATCHCTRL, TVP3026_XTRUECOLORCTRL,
  TVP3026_XMUXCTRL, TVP3026_XCLKCTRL,
  TVP3026_XPALETTEPAGE,
  TVP3026_XGENCTRL,
  TVP3026_XMISCCTRL,
  TVP3026_XGENIOCTRL,
  TVP3026_XGENIODATA,
  TVP3026_XCOLKEYOVRMIN, TVP3026_XCOLKEYOVRMAX, TVP3026_XCOLKEYREDMIN, TVP3026_XCOLKEYREDMAX,
  TVP3026_XCOLKEYGREENMIN, TVP3026_XCOLKEYGREENMAX, TVP3026_XCOLKEYBLUEMIN, TVP3026_XCOLKEYBLUEMAX,
  TVP3026_XCOLKEYCTRL,
  TVP3026_XMEMPLLCTRL, TVP3026_XSENSETEST, TVP3026_XCURCTRL };

#define POS3026_XLATCHCTRL	0
#define POS3026_XTRUECOLORCTRL	1
#define POS3026_XMUXCTRL	2
#define POS3026_XCLKCTRL	3
#define POS3026_XGENCTRL	5
#define POS3026_XMISCCTRL	6
#define POS3026_XMEMPLLCTRL	18
#define POS3026_XCURCTRL	20

static const unsigned char MGADACbpp32[] =
{ TVP3026_XLATCHCTRL_2_1, TVP3026_XTRUECOLORCTRL_DIRECTCOLOR | TVP3026_XTRUECOLORCTRL_ORGB_8888,
  0x00, TVP3026_XCLKCTRL_DIV1 | TVP3026_XCLKCTRL_SRC_PLL,
  0x00,
  TVP3026_XGENCTRL_HSYNC_POS | TVP3026_XGENCTRL_VSYNC_POS | TVP3026_XGENCTRL_LITTLE_ENDIAN | TVP3026_XGENCTRL_BLACK_0IRE | TVP3026_XGENCTRL_NO_SYNC_ON_GREEN | TVP3026_XGENCTRL_OVERSCAN_DIS,
  TVP3026_XMISCCTRL_DAC_PUP | TVP3026_XMISCCTRL_DAC_8BIT | TVP3026_XMISCCTRL_PSEL_DIS | TVP3026_XMISCCTRL_PSEL_HIGH,
  0x00,
  0x1E,
  0xFF, 0xFF, 0xFF, 0xFF,
  0xFF, 0xFF, 0xFF, 0xFF,
  TVP3026_XCOLKEYCTRL_ZOOM1,
  0x00, 0x00, TVP3026_XCURCTRL_DIS };

static int Ti3026_calcclock(const struct matrox_fb_info *minfo,
			    unsigned int freq, unsigned int fmax, int *in,
			    int *feed, int *post)
{
	unsigned int fvco;
	unsigned int lin, lfeed, lpost;

	DBG(__func__)

	fvco = PLL_calcclock(minfo, freq, fmax, &lin, &lfeed, &lpost);
	fvco >>= (*post = lpost);
	*in = 64 - lin;
	*feed = 64 - lfeed;
	return fvco;
}

static int Ti3026_setpclk(struct matrox_fb_info *minfo, int clk)
{
	unsigned int f_pll;
	unsigned int pixfeed, pixin, pixpost;
	struct matrox_hw_state *hw = &minfo->hw;

	DBG(__func__)

	f_pll = Ti3026_calcclock(minfo, clk, minfo->max_pixel_clock, &pixin, &pixfeed, &pixpost);

	hw->DACclk[0] = pixin | 0xC0;
	hw->DACclk[1] = pixfeed;
	hw->DACclk[2] = pixpost | 0xB0;

	{
		unsigned int loopfeed, loopin, looppost, loopdiv, z;
		unsigned int Bpp;

		Bpp = minfo->curr.final_bppShift;

		if (minfo->fbcon.var.bits_per_pixel == 24) {
			loopfeed = 3;		/* set lm to any possible value */
			loopin = 3 * 32 / Bpp;
		} else {
			loopfeed = 4;
			loopin = 4 * 32 / Bpp;
		}
		z = (110000 * loopin) / (f_pll * loopfeed);
		loopdiv = 0; /* div 2 */
		if (z < 2)
			looppost = 0;
		else if (z < 4)
			looppost = 1;
		else if (z < 8)
			looppost = 2;
		else {
			looppost = 3;
			loopdiv = z/16;
		}
		if (minfo->fbcon.var.bits_per_pixel == 24) {
			hw->DACclk[3] = ((65 - loopin) & 0x3F) | 0xC0;
			hw->DACclk[4] = (65 - loopfeed) | 0x80;
			if (minfo->accel.ramdac_rev > 0x20) {
				if (isInterleave(minfo))
					hw->DACreg[POS3026_XLATCHCTRL] = TVP3026B_XLATCHCTRL_8_3;
				else {
					hw->DACclk[4] &= ~0xC0;
					hw->DACreg[POS3026_XLATCHCTRL] = TVP3026B_XLATCHCTRL_4_3;
				}
			} else {
				if (isInterleave(minfo))
					;	/* default... */
				else {
					hw->DACclk[4] ^= 0xC0;	/* change from 0x80 to 0x40 */
					hw->DACreg[POS3026_XLATCHCTRL] = TVP3026A_XLATCHCTRL_4_3;
				}
			}
			hw->DACclk[5] = looppost | 0xF8;
			if (minfo->devflags.mga_24bpp_fix)
				hw->DACclk[5] ^= 0x40;
		} else {
			hw->DACclk[3] = ((65 - loopin) & 0x3F) | 0xC0;
			hw->DACclk[4] = 65 - loopfeed;
			hw->DACclk[5] = looppost | 0xF0;
		}
		hw->DACreg[POS3026_XMEMPLLCTRL] = loopdiv | TVP3026_XMEMPLLCTRL_MCLK_MCLKPLL | TVP3026_XMEMPLLCTRL_RCLK_LOOPPLL;
	}
	return 0;
}

static int Ti3026_init(struct matrox_fb_info *minfo, struct my_timming *m)
{
	u_int8_t muxctrl = isInterleave(minfo) ? TVP3026_XMUXCTRL_MEMORY_64BIT : TVP3026_XMUXCTRL_MEMORY_32BIT;
	struct matrox_hw_state *hw = &minfo->hw;

	DBG(__func__)

	memcpy(hw->DACreg, MGADACbpp32, sizeof(MGADACbpp32));
	switch (minfo->fbcon.var.bits_per_pixel) {
		case 4:	hw->DACreg[POS3026_XLATCHCTRL] = TVP3026_XLATCHCTRL_16_1;	/* or _8_1, they are same */
			hw->DACreg[POS3026_XTRUECOLORCTRL] = TVP3026_XTRUECOLORCTRL_PSEUDOCOLOR;
			hw->DACreg[POS3026_XMUXCTRL] = muxctrl | TVP3026_XMUXCTRL_PIXEL_4BIT;
			hw->DACreg[POS3026_XCLKCTRL] = TVP3026_XCLKCTRL_SRC_PLL | TVP3026_XCLKCTRL_DIV8;
			hw->DACreg[POS3026_XMISCCTRL] = TVP3026_XMISCCTRL_DAC_PUP | TVP3026_XMISCCTRL_DAC_8BIT | TVP3026_XMISCCTRL_PSEL_DIS | TVP3026_XMISCCTRL_PSEL_LOW;
			break;
		case 8: hw->DACreg[POS3026_XLATCHCTRL] = TVP3026_XLATCHCTRL_8_1;	/* or _4_1, they are same */
			hw->DACreg[POS3026_XTRUECOLORCTRL] = TVP3026_XTRUECOLORCTRL_PSEUDOCOLOR;
			hw->DACreg[POS3026_XMUXCTRL] = muxctrl | TVP3026_XMUXCTRL_PIXEL_8BIT;
			hw->DACreg[POS3026_XCLKCTRL] = TVP3026_XCLKCTRL_SRC_PLL | TVP3026_XCLKCTRL_DIV4;
			hw->DACreg[POS3026_XMISCCTRL] = TVP3026_XMISCCTRL_DAC_PUP | TVP3026_XMISCCTRL_DAC_8BIT | TVP3026_XMISCCTRL_PSEL_DIS | TVP3026_XMISCCTRL_PSEL_LOW;
			break;
		case 16:
			/* XLATCHCTRL should be _4_1 / _2_1... Why is not? (_2_1 is used every time) */
			hw->DACreg[POS3026_XTRUECOLORCTRL] = (minfo->fbcon.var.green.length == 5) ? (TVP3026_XTRUECOLORCTRL_DIRECTCOLOR | TVP3026_XTRUECOLORCTRL_ORGB_1555) : (TVP3026_XTRUECOLORCTRL_DIRECTCOLOR | TVP3026_XTRUECOLORCTRL_RGB_565);
			hw->DACreg[POS3026_XMUXCTRL] = muxctrl | TVP3026_XMUXCTRL_PIXEL_16BIT;
			hw->DACreg[POS3026_XCLKCTRL] = TVP3026_XCLKCTRL_SRC_PLL | TVP3026_XCLKCTRL_DIV2;
			break;
		case 24:
			/* XLATCHCTRL is: for (A) use _4_3 (?_8_3 is same? TBD), for (B) it is set in setpclk */
			hw->DACreg[POS3026_XTRUECOLORCTRL] = TVP3026_XTRUECOLORCTRL_DIRECTCOLOR | TVP3026_XTRUECOLORCTRL_RGB_888;
			hw->DACreg[POS3026_XMUXCTRL] = muxctrl | TVP3026_XMUXCTRL_PIXEL_32BIT;
			hw->DACreg[POS3026_XCLKCTRL] = TVP3026_XCLKCTRL_SRC_PLL | TVP3026_XCLKCTRL_DIV4;
			break;
		case 32:
			/* XLATCHCTRL should be _2_1 / _1_1... Why is not? (_2_1 is used every time) */
			hw->DACreg[POS3026_XMUXCTRL] = muxctrl | TVP3026_XMUXCTRL_PIXEL_32BIT;
			break;
		default:
			return 1;	/* TODO: failed */
	}
	if (matroxfb_vgaHWinit(minfo, m)) return 1;

	/* set SYNC */
	hw->MiscOutReg = 0xCB;
	if (m->sync & FB_SYNC_HOR_HIGH_ACT)
		hw->DACreg[POS3026_XGENCTRL] |= TVP3026_XGENCTRL_HSYNC_NEG;
	if (m->sync & FB_SYNC_VERT_HIGH_ACT)
		hw->DACreg[POS3026_XGENCTRL] |= TVP3026_XGENCTRL_VSYNC_NEG;
	if (m->sync & FB_SYNC_ON_GREEN)
		hw->DACreg[POS3026_XGENCTRL] |= TVP3026_XGENCTRL_SYNC_ON_GREEN;

	/* set DELAY */
	if (minfo->video.len < 0x400000)
		hw->CRTCEXT[3] |= 0x08;
	else if (minfo->video.len > 0x400000)
		hw->CRTCEXT[3] |= 0x10;

	/* set HWCURSOR */
	if (m->interlaced) {
		hw->DACreg[POS3026_XCURCTRL] |= TVP3026_XCURCTRL_INTERLACED;
	}
	if (m->HTotal >= 1536)
		hw->DACreg[POS3026_XCURCTRL] |= TVP3026_XCURCTRL_BLANK4096;

	/* set interleaving */
	hw->MXoptionReg &= ~0x00001000;
	if (isInterleave(minfo)) hw->MXoptionReg |= 0x00001000;

	/* set DAC */
	Ti3026_setpclk(minfo, m->pixclock);
	return 0;
}

static void ti3026_setMCLK(struct matrox_fb_info *minfo, int fout)
{
	unsigned int f_pll;
	unsigned int pclk_m, pclk_n, pclk_p;
	unsigned int mclk_m, mclk_n, mclk_p;
	unsigned int rfhcnt, mclk_ctl;
	int tmout;

	DBG(__func__)

	f_pll = Ti3026_calcclock(minfo, fout, minfo->max_pixel_clock, &mclk_n, &mclk_m, &mclk_p);

	/* save pclk */
	outTi3026(minfo, TVP3026_XPLLADDR, 0xFC);
	pclk_n = inTi3026(minfo, TVP3026_XPIXPLLDATA);
	outTi3026(minfo, TVP3026_XPLLADDR, 0xFD);
	pclk_m = inTi3026(minfo, TVP3026_XPIXPLLDATA);
	outTi3026(minfo, TVP3026_XPLLADDR, 0xFE);
	pclk_p = inTi3026(minfo, TVP3026_XPIXPLLDATA);

	/* stop pclk */
	outTi3026(minfo, TVP3026_XPLLADDR, 0xFE);
	outTi3026(minfo, TVP3026_XPIXPLLDATA, 0x00);

	/* set pclk to new mclk */
	outTi3026(minfo, TVP3026_XPLLADDR, 0xFC);
	outTi3026(minfo, TVP3026_XPIXPLLDATA, mclk_n | 0xC0);
	outTi3026(minfo, TVP3026_XPIXPLLDATA, mclk_m);
	outTi3026(minfo, TVP3026_XPIXPLLDATA, mclk_p | 0xB0);

	/* wait for PLL to lock */
	for (tmout = 500000; tmout; tmout--) {
		if (inTi3026(minfo, TVP3026_XPIXPLLDATA) & 0x40)
			break;
		udelay(10);
	}
	if (!tmout)
		printk(KERN_ERR "matroxfb: Temporary pixel PLL not locked after 5 secs\n");

	/* output pclk on mclk pin */
	mclk_ctl = inTi3026(minfo, TVP3026_XMEMPLLCTRL);
	outTi3026(minfo, TVP3026_XMEMPLLCTRL, mclk_ctl & 0xE7);
	outTi3026(minfo, TVP3026_XMEMPLLCTRL, (mclk_ctl & 0xE7) | TVP3026_XMEMPLLCTRL_STROBEMKC4);

	/* stop MCLK */
	outTi3026(minfo, TVP3026_XPLLADDR, 0xFB);
	outTi3026(minfo, TVP3026_XMEMPLLDATA, 0x00);

	/* set mclk to new freq */
	outTi3026(minfo, TVP3026_XPLLADDR, 0xF3);
	outTi3026(minfo, TVP3026_XMEMPLLDATA, mclk_n | 0xC0);
	outTi3026(minfo, TVP3026_XMEMPLLDATA, mclk_m);
	outTi3026(minfo, TVP3026_XMEMPLLDATA, mclk_p | 0xB0);

	/* wait for PLL to lock */
	for (tmout = 500000; tmout; tmout--) {
		if (inTi3026(minfo, TVP3026_XMEMPLLDATA) & 0x40)
			break;
		udelay(10);
	}
	if (!tmout)
		printk(KERN_ERR "matroxfb: Memory PLL not locked after 5 secs\n");

	f_pll = f_pll * 333 / (10000 << mclk_p);
	if (isMilleniumII(minfo)) {
		rfhcnt = (f_pll - 128) / 256;
		if (rfhcnt > 15)
			rfhcnt = 15;
	} else {
		rfhcnt = (f_pll - 64) / 128;
		if (rfhcnt > 15)
			rfhcnt = 0;
	}
	minfo->hw.MXoptionReg = (minfo->hw.MXoptionReg & ~0x000F0000) | (rfhcnt << 16);
	pci_write_config_dword(minfo->pcidev, PCI_OPTION_REG, minfo->hw.MXoptionReg);

	/* output MCLK to MCLK pin */
	outTi3026(minfo, TVP3026_XMEMPLLCTRL, (mclk_ctl & 0xE7) | TVP3026_XMEMPLLCTRL_MCLK_MCLKPLL);
	outTi3026(minfo, TVP3026_XMEMPLLCTRL, (mclk_ctl       ) | TVP3026_XMEMPLLCTRL_MCLK_MCLKPLL | TVP3026_XMEMPLLCTRL_STROBEMKC4);

	/* stop PCLK */
	outTi3026(minfo, TVP3026_XPLLADDR, 0xFE);
	outTi3026(minfo, TVP3026_XPIXPLLDATA, 0x00);

	/* restore pclk */
	outTi3026(minfo, TVP3026_XPLLADDR, 0xFC);
	outTi3026(minfo, TVP3026_XPIXPLLDATA, pclk_n);
	outTi3026(minfo, TVP3026_XPIXPLLDATA, pclk_m);
	outTi3026(minfo, TVP3026_XPIXPLLDATA, pclk_p);

	/* wait for PLL to lock */
	for (tmout = 500000; tmout; tmout--) {
		if (inTi3026(minfo, TVP3026_XPIXPLLDATA) & 0x40)
			break;
		udelay(10);
	}
	if (!tmout)
		printk(KERN_ERR "matroxfb: Pixel PLL not locked after 5 secs\n");
}

static void ti3026_ramdac_init(struct matrox_fb_info *minfo)
{
	DBG(__func__)

	minfo->features.pll.vco_freq_min = 110000;
	minfo->features.pll.ref_freq	 = 114545;
	minfo->features.pll.feed_div_min = 2;
	minfo->features.pll.feed_div_max = 24;
	minfo->features.pll.in_div_min	 = 2;
	minfo->features.pll.in_div_max	 = 63;
	minfo->features.pll.post_shift_max = 3;
	if (minfo->devflags.noinit)
		return;
	ti3026_setMCLK(minfo, 60000);
}

static void Ti3026_restore(struct matrox_fb_info *minfo)
{
	int i;
	unsigned char progdac[6];
	struct matrox_hw_state *hw = &minfo->hw;
	CRITFLAGS

	DBG(__func__)

#ifdef DEBUG
	dprintk(KERN_INFO "EXTVGA regs: ");
	for (i = 0; i < 6; i++)
		dprintk("%02X:", hw->CRTCEXT[i]);
	dprintk("\n");
#endif

	CRITBEGIN

	pci_write_config_dword(minfo->pcidev, PCI_OPTION_REG, hw->MXoptionReg);

	CRITEND

	matroxfb_vgaHWrestore(minfo);

	CRITBEGIN

	minfo->crtc1.panpos = -1;
	for (i = 0; i < 6; i++)
		mga_setr(M_EXTVGA_INDEX, i, hw->CRTCEXT[i]);

	for (i = 0; i < 21; i++) {
		outTi3026(minfo, DACseq[i], hw->DACreg[i]);
	}

	outTi3026(minfo, TVP3026_XPLLADDR, 0x00);
	progdac[0] = inTi3026(minfo, TVP3026_XPIXPLLDATA);
	progdac[3] = inTi3026(minfo, TVP3026_XLOOPPLLDATA);
	outTi3026(minfo, TVP3026_XPLLADDR, 0x15);
	progdac[1] = inTi3026(minfo, TVP3026_XPIXPLLDATA);
	progdac[4] = inTi3026(minfo, TVP3026_XLOOPPLLDATA);
	outTi3026(minfo, TVP3026_XPLLADDR, 0x2A);
	progdac[2] = inTi3026(minfo, TVP3026_XPIXPLLDATA);
	progdac[5] = inTi3026(minfo, TVP3026_XLOOPPLLDATA);

	CRITEND
	if (memcmp(hw->DACclk, progdac, 6)) {
		/* agrhh... setting up PLL is very slow on Millennium... */
		/* Mystique PLL is locked in few ms, but Millennium PLL lock takes about 0.15 s... */
		/* Maybe even we should call schedule() ? */

		CRITBEGIN
		outTi3026(minfo, TVP3026_XCLKCTRL, hw->DACreg[POS3026_XCLKCTRL]);
		outTi3026(minfo, TVP3026_XPLLADDR, 0x2A);
		outTi3026(minfo, TVP3026_XLOOPPLLDATA, 0);
		outTi3026(minfo, TVP3026_XPIXPLLDATA, 0);

		outTi3026(minfo, TVP3026_XPLLADDR, 0x00);
		for (i = 0; i < 3; i++)
			outTi3026(minfo, TVP3026_XPIXPLLDATA, hw->DACclk[i]);
		/* wait for PLL only if PLL clock requested (always for PowerMode, never for VGA) */
		if (hw->MiscOutReg & 0x08) {
			int tmout;
			outTi3026(minfo, TVP3026_XPLLADDR, 0x3F);
			for (tmout = 500000; tmout; --tmout) {
				if (inTi3026(minfo, TVP3026_XPIXPLLDATA) & 0x40)
					break;
				udelay(10);
			}

			CRITEND

			if (!tmout)
				printk(KERN_ERR "matroxfb: Pixel PLL not locked after 5 secs\n");
			else
				dprintk(KERN_INFO "PixelPLL: %d\n", 500000-tmout);
			CRITBEGIN
		}
		outTi3026(minfo, TVP3026_XMEMPLLCTRL, hw->DACreg[POS3026_XMEMPLLCTRL]);
		outTi3026(minfo, TVP3026_XPLLADDR, 0x00);
		for (i = 3; i < 6; i++)
			outTi3026(minfo, TVP3026_XLOOPPLLDATA, hw->DACclk[i]);
		CRITEND
		if ((hw->MiscOutReg & 0x08) && ((hw->DACclk[5] & 0x80) == 0x80)) {
			int tmout;

			CRITBEGIN
			outTi3026(minfo, TVP3026_XPLLADDR, 0x3F);
			for (tmout = 500000; tmout; --tmout) {
				if (inTi3026(minfo, TVP3026_XLOOPPLLDATA) & 0x40)
					break;
				udelay(10);
			}
			CRITEND
			if (!tmout)
				printk(KERN_ERR "matroxfb: Loop PLL not locked after 5 secs\n");
			else
				dprintk(KERN_INFO "LoopPLL: %d\n", 500000-tmout);
		}
	}

#ifdef DEBUG
	dprintk(KERN_DEBUG "3026DACregs ");
	for (i = 0; i < 21; i++) {
		dprintk("R%02X=%02X ", DACseq[i], hw->DACreg[i]);
		if ((i & 0x7) == 0x7) dprintk(KERN_DEBUG "continuing... ");
	}
	dprintk(KERN_DEBUG "DACclk ");
	for (i = 0; i < 6; i++)
		dprintk("C%02X=%02X ", i, hw->DACclk[i]);
	dprintk("\n");
#endif
}

static void Ti3026_reset(struct matrox_fb_info *minfo)
{
	DBG(__func__)

	ti3026_ramdac_init(minfo);
}

static struct matrox_altout ti3026_output = {
	.name	 = "Primary output",
};

static int Ti3026_preinit(struct matrox_fb_info *minfo)
{
	static const int vxres_mill2[] = { 512,        640, 768,  800,  832,  960,
					  1024, 1152, 1280,      1600, 1664, 1920,
					  2048, 0};
	static const int vxres_mill1[] = {             640, 768,  800,        960,
					  1024, 1152, 1280,      1600,       1920,
					  2048, 0};
	struct matrox_hw_state *hw = &minfo->hw;

	DBG(__func__)

	minfo->millenium = 1;
	minfo->milleniumII = (minfo->pcidev->device != PCI_DEVICE_ID_MATROX_MIL);
	minfo->capable.cfb4 = 1;
	minfo->capable.text = 1; /* isMilleniumII(minfo); */
	minfo->capable.vxres = isMilleniumII(minfo) ? vxres_mill2 : vxres_mill1;

	minfo->outputs[0].data = minfo;
	minfo->outputs[0].output = &ti3026_output;
	minfo->outputs[0].src = minfo->outputs[0].default_src;
	minfo->outputs[0].mode = MATROXFB_OUTPUT_MODE_MONITOR;

	if (minfo->devflags.noinit)
		return 0;
	/* preserve VGA I/O, BIOS and PPC */
	hw->MXoptionReg &= 0xC0000100;
	hw->MXoptionReg |= 0x002C0000;
	if (minfo->devflags.novga)
		hw->MXoptionReg &= ~0x00000100;
	if (minfo->devflags.nobios)
		hw->MXoptionReg &= ~0x40000000;
	if (minfo->devflags.nopciretry)
		hw->MXoptionReg |=  0x20000000;
	pci_write_config_dword(minfo->pcidev, PCI_OPTION_REG, hw->MXoptionReg);

	minfo->accel.ramdac_rev = inTi3026(minfo, TVP3026_XSILICONREV);

	outTi3026(minfo, TVP3026_XCLKCTRL, TVP3026_XCLKCTRL_SRC_CLK0VGA | TVP3026_XCLKCTRL_CLKSTOPPED);
	outTi3026(minfo, TVP3026_XTRUECOLORCTRL, TVP3026_XTRUECOLORCTRL_PSEUDOCOLOR);
	outTi3026(minfo, TVP3026_XMUXCTRL, TVP3026_XMUXCTRL_VGA);

	outTi3026(minfo, TVP3026_XPLLADDR, 0x2A);
	outTi3026(minfo, TVP3026_XLOOPPLLDATA, 0x00);
	outTi3026(minfo, TVP3026_XPIXPLLDATA, 0x00);

	mga_outb(M_MISC_REG, 0x67);

	outTi3026(minfo, TVP3026_XMEMPLLCTRL, TVP3026_XMEMPLLCTRL_STROBEMKC4 | TVP3026_XMEMPLLCTRL_MCLK_MCLKPLL);

	mga_outl(M_RESET, 1);
	udelay(250);
	mga_outl(M_RESET, 0);
	udelay(250);
	mga_outl(M_MACCESS, 0x00008000);
	udelay(10);
	return 0;
}

struct matrox_switch matrox_millennium = {
	.preinit	= Ti3026_preinit,
	.reset		= Ti3026_reset,
	.init		= Ti3026_init,
	.restore	= Ti3026_restore
};
EXPORT_SYMBOL(matrox_millennium);
#endif
MODULE_LICENSE("GPL");