forked from Sricharanti/sricharan
-
Notifications
You must be signed in to change notification settings - Fork 0
/
pm3fb.c
3641 lines (3207 loc) · 109 KB
/
pm3fb.c
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
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* linux/drivers/video/pm3fb.c -- 3DLabs Permedia3 frame buffer device
*
* Copyright (C) 2001 Romain Dolbeau <[email protected]>
* Based on code written by:
* Sven Luther, <[email protected]>
* Alan Hourihane, <[email protected]>
* Russell King, <[email protected]>
* Based on linux/drivers/video/skeletonfb.c:
* Copyright (C) 1997 Geert Uytterhoeven
* Based on linux/driver/video/pm2fb.c:
* Copyright (C) 1998-1999 Ilario Nardinocchi ([email protected])
* Copyright (C) 1999 Jakub Jelinek ([email protected])
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*
* $Header: /cvsroot/linux/drivers/video/pm3fb.c,v 1.1 2002/02/25 19:11:06 marcelo Exp $
*
* CHANGELOG:
* Mon Feb 11 10:35:48 MET 2002, v 1.4.11B: Cosmetic update.
* Wed Jan 23 14:16:59 MET 2002, v 1.4.11: Preliminary 2.5.x support, patch for 2.5.2.
* Wed Nov 28 11:08:29 MET 2001, v 1.4.10: potential bug fix for SDRAM-based board, patch for 2.4.16.
* Thu Sep 20 10:24:42 MET DST 2001, v 1.4.9: sync bug fix, preliminary flatpanel support, better timings.
* Tue Aug 28 10:13:01 MET DST 2001, v 1.4.8: memory timings check, minor bug fixes.
* Wed Jul 18 19:06:14 CEST 2001, v 1.4.7: Mode fix (800x600-100, 1024x768-100 changed), using HW panning + accel bug fix.
* Mon Jun 25 10:33:56 MET DST 2001, v 1.4.6: Depth 12 fix, chip reset ioctl, moved memory erase ioctl to DEBUG.
* Wed Jun 20 11:13:08 MET DST 2001, v 1.4.5: Fixed missing blinking cursor in 8bpp, code cleaning, memory erase IOCTL.
* Mon Jun 18 16:00:27 CEST 2001, v 1.4.4: Depth 12 (RGBA 4444) support, code cleaning.
* Fri Jun 15 13:53:01 CEST 2001, v 1.4.3: Removed warnings, depth 15 support, add 'depth' option.
* Thu Jun 14 10:13:52 MET DST 2001, v 1.4.2: Fixed depth switching bug, preliminary 15bpp (RGB5551) support.
* Thu Apr 12 11:16:45 MET DST 2001, v 1.4.1B: Doc updates.
* Fri Apr 6 11:12:53 MET DST 2001, v 1.4.1: Configure.help, minor cleanup
* Thu Mar 29 10:56:50 MET DST 2001, v 1.4.0: Module & module options support (note: linux patch changed, 2.2.19 added).
* Thu Mar 15 15:30:31 MET 2001, v 1.3.2: Fixed mirroring bug on little-endian.
* Wed Mar 14 21:25:54 CET 2001, v 1.3.1: Fixed bug in BlockMove (_bmov).
* Tue Mar 13 10:53:19 MET 2001, v 1.3.0: Character drawing hardware support (in all width between 1 and 16), fixes.
* Thu Mar 8 10:20:16 MET 2001, v 1.2.2: Better J2000 support, "font:" option.
* Tue Mar 6 21:25:04 CET 2001, v 1.2.1: Better acceleration support.
* Mon Mar 5 21:54:17 CET 2001, v 1.2.0: Partial acceleration support (clear & bmove)
* Mon Mar 5 12:52:15 CET 2001, v 1.1.3: Big pan_display fix.
* Sun Mar 4 22:21:50 CET 2001, v 1.1.2: (numerous) bug fixes.
* Fri Mar 2 15:54:07 CET 2001, v 1.1.1: Might have Appian J2000 support, resource mangement in 2.4
* Wed Feb 28 18:21:35 CET 2001, v 1.1.0: Might have multiple boards support (added, but not yest tested)
* Tue Feb 27 17:31:12 CET 2001, v 1.0.6: fixes boot-time mode select, add more default mode
* Tue Feb 27 14:01:36 CET 2001, v 1.0.5: fixes (1.0.4 was broken for 2.2), cleaning up
* Mon Feb 26 23:17:36 CET 2001, v 1.0.4: preliminary 2.4.x support, dropped (useless on pm3) partial product, more OF fix
* Mon Feb 26 20:59:05 CET 2001, v 1.0.3: No more shadow register (and wasted memory), endianess fix, use OF-preset resolution by default
* Wed Feb 21 22:09:30 CET 2001, v 1.0.2: Code cleaning for future multiboard support, better OF support, bugs fix
* Wed Feb 21 19:58:56 CET 2001, v 1.0.1: OpenFirmware support, fixed memory detection, better debug support, code cleaning
* Wed Feb 21 14:47:06 CET 2001, v 1.0.0: First working version
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/ioport.h>
#include <linux/ctype.h>
#include <video/fbcon.h>
#include <video/fbcon-mfb.h>
#include <video/fbcon-cfb2.h>
#include <video/fbcon-cfb4.h>
#include <video/fbcon-cfb8.h>
#include <video/fbcon-cfb16.h>
#include <video/fbcon-cfb24.h>
#include <video/fbcon-cfb32.h>
#include <video/pm3fb.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#ifdef CONFIG_FB_OF
#include <asm/prom.h>
#endif
/* ************************************* */
/* ***** The various "global" data ***** */
/* ************************************* */
/* those will need a rework for multiple board support */
/* Driver name */
static const char permedia3_name[16] = "Permedia3";
/* the fb_par struct, mandatory */
struct pm3fb_par {
u32 pixclock; /* pixclock in KHz */
u32 width; /* width of virtual screen */
u32 height; /* height of virtual screen */
u32 hsstart; /* horiz. sync start */
u32 hsend; /* horiz. sync end */
u32 hbend; /* horiz. blank end (also gate end) */
u32 htotal; /* total width (w/ sync & blank) */
u32 vsstart; /* vert. sync start */
u32 vsend; /* vert. sync end */
u32 vbend; /* vert. blank end */
u32 vtotal; /* total height (w/ sync & blank) */
u32 stride; /* screen stride */
u32 base; /* screen base (xoffset+yoffset) in 128 bits unit */
/* NOTE : unlike other pm3 stuff above, stored *after* shiftbpp. don't ask */
u32 depth; /* screen depth (8, 12, 15, 16 or 32) */
u32 video; /* video control (hsync,vsync) */
};
/* memory timings */
struct pm3fb_timings
{
unsigned long caps;
unsigned long timings;
unsigned long control;
unsigned long refresh;
unsigned long powerdown;
};
typedef enum pm3fb_timing_result { pm3fb_timing_ok, pm3fb_timing_problem, pm3fb_timing_retry } pm3fb_timing_result;
#define PM3FB_UNKNOWN_TIMING_VALUE ((unsigned long)-1)
#define PM3FB_UNKNOWN_TIMINGS { PM3FB_UNKNOWN_TIMING_VALUE, PM3FB_UNKNOWN_TIMING_VALUE, PM3FB_UNKNOWN_TIMING_VALUE, PM3FB_UNKNOWN_TIMING_VALUE, PM3FB_UNKNOWN_TIMING_VALUE }
/* the fb_info struct, mandatory */
struct pm3fb_info {
struct fb_info_gen gen;
unsigned long board_num; /* internal board number */
unsigned long use_current;
struct pm3fb_par *current_par;
struct pci_dev *dev; /* PCI device */
unsigned long board_type; /* index in the cardbase */
unsigned char *fb_base; /* framebuffer memory base */
u32 fb_size; /* framebuffer memory size */
unsigned char *p_fb; /* physical address of frame buffer */
unsigned char *v_fb; /* virtual address of frame buffer */
unsigned char *pIOBase; /* physical address of registers region, must be rg_base or rg_base+PM2_REGS_SIZE depending on the host endianness */
unsigned char *vIOBase; /* address of registers after ioremap() */
struct {
u8 transp;
u8 red;
u8 green;
u8 blue;
} palette[256];
union {
#ifdef FBCON_HAS_CFB16
u16 cmap12[16]; /* RGBA 4444 */
u16 cmap15[16]; /* RGBA 5551 */
u16 cmap16[16]; /* RGBA 5650 */
#endif
#ifdef FBCON_HAS_CFB32
u32 cmap32[16];
#endif
} cmap;
struct pm3fb_timings memt;
};
/* regular resolution database*/
static struct {
char name[16];
struct pm3fb_par user_mode;
} mode_base[] __initdata = {
{
"default-800x600", {
49500, 800, 600, 16, 96, 256, 1056, 1, 4, 25, 625,
800, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}}, {
"1024x768-74", {
78752, 1024, 768, 32, 128, 304, 1328, 1, 4, 38,
806, 1024, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}}, {
"1024x768-74-32", {
78752, 1024, 768, 32, 128, 304, 1328, 1, 4, 38,
806, 1024, 0, 32,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_32BIT}},
/* Generated mode : "1600x1024", for the SGI 1600SW flat panel*/
{
"SGI1600SW", {
108000, 1600, 1024, 16, 56, 104, 1704, 3, 6, 32,
1056, 1600, 0, 8,
PM3VideoControl_ENABLE|
PM3VideoControl_HSYNC_ACTIVE_LOW|PM3VideoControl_VSYNC_ACTIVE_LOW|
PM3VideoControl_PIXELSIZE_32BIT}},
/* ##### auto-generated mode, by fbtimings2pm3 */
/* Generated mode : "640x480-60" */
{
"640x480-60", {
25174, 640, 480, 16, 112, 160, 800, 10, 12, 45,
525, 640, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_LOW
|
PM3VideoControl_VSYNC_ACTIVE_LOW
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "640x480-72" */
{
"640x480-72", {
31199, 640, 480, 24, 64, 192, 832, 9, 12, 40, 520,
640, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_LOW
|
PM3VideoControl_VSYNC_ACTIVE_LOW
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "640x480-75" */
{
"640x480-75", {
31499, 640, 480, 16, 80, 200, 840, 1, 4, 20, 500,
640, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_LOW
|
PM3VideoControl_VSYNC_ACTIVE_LOW
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "640x480-90" */
{
"640x480-90", {
39909, 640, 480, 32, 72, 192, 832, 25, 39, 53, 533,
640, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_LOW
|
PM3VideoControl_VSYNC_ACTIVE_LOW
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "640x480-100" */
{
"640x480-100", {
44899, 640, 480, 32, 160, 208, 848, 22, 34, 51,
531, 640, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_LOW
|
PM3VideoControl_VSYNC_ACTIVE_LOW
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "800x600-48-lace" */
/* INTERLACED NOT SUPPORTED
{"800x600-48-lace", {35999, 800, 600, 80, 208, 264, 1064, 11, 23, 102, 702, 800, 0, 8, PM3VideoControl_ENABLE|PM3VideoControl_HSYNC_ACTIVE_HIGH|PM3VideoControl_VSYNC_ACTIVE_HIGH|PM3VideoControl_PIXELSIZE_8BIT}},
INTERLACED NOT SUPPORTED */
/* Generated mode : "800x600-56" */
{
"800x600-56", {
35999, 800, 600, 24, 96, 224, 1024, 1, 3, 25, 625,
800, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "800x600-60" */
{
"800x600-60", {
40000, 800, 600, 40, 168, 256, 1056, 1, 5, 28, 628,
800, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "800x600-70" */
{
"800x600-70", {
44899, 800, 600, 24, 168, 208, 1008, 9, 21, 36,
636, 800, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_LOW
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "800x600-72" */
{
"800x600-72", {
50000, 800, 600, 56, 176, 240, 1040, 37, 43, 66,
666, 800, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "800x600-75" */
{
"800x600-75", {
49497, 800, 600, 16, 96, 256, 1056, 1, 4, 25, 625,
800, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "800x600-90" */
{
"800x600-90", {
56637, 800, 600, 8, 72, 192, 992, 8, 19, 35, 635,
800, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "800x600-100", from /etc/fb.modes */
/* DISABLED, hsstart == 0
{
"800x600-100", {
67499, 800, 600, 0, 64, 280, 1080, 7, 11, 25, 625,
800, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
*/
/* Generated mode : "800x600-100", from ??? */
{
"800x600-100", {
69650, 800, 600, 64, 128, 288, 1088, 4, 10, 40, 640, 800, 0, 8,
PM3VideoControl_ENABLE|PM3VideoControl_HSYNC_ACTIVE_LOW|
PM3VideoControl_VSYNC_ACTIVE_LOW|PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1024x768-43-lace" */
/* INTERLACED NOT SUPPORTED
{"1024x768-43-lace", {44899, 1024, 768, 8, 184, 240, 1264, 1, 9, 49, 817, 1024, 0, 8, PM3VideoControl_ENABLE|PM3VideoControl_HSYNC_ACTIVE_HIGH|PM3VideoControl_VSYNC_ACTIVE_HIGH|PM3VideoControl_PIXELSIZE_8BIT}},
INTERLACED NOT SUPPORTED */
/* Generated mode : "1024x768-60" */
{
"1024x768-60", {
64998, 1024, 768, 24, 160, 320, 1344, 3, 9, 38,
806, 1024, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_LOW
|
PM3VideoControl_VSYNC_ACTIVE_LOW
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1024x768-70" */
{
"1024x768-70", {
74996, 1024, 768, 24, 160, 304, 1328, 3, 9, 38,
806, 1024, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_LOW
|
PM3VideoControl_VSYNC_ACTIVE_LOW
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1024x768-72" */
{
"1024x768-72", {
74996, 10224, 768, 24, 160, 264, 10488, 3, 9, 38,
806, 10224, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_LOW
|
PM3VideoControl_VSYNC_ACTIVE_LOW
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1024x768-75" */
{
"1024x768-75", {
78746, 1024, 768, 16, 112, 288, 1312, 1, 4, 32,
800, 1024, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1024x768-90" */
{
"1024x768-90", {
100000, 1024, 768, 0, 96, 288, 1312, 21, 36, 77,
845, 1024, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_LOW
|
PM3VideoControl_VSYNC_ACTIVE_LOW
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1024x768-100", from /etc/fb.modes */
/* DISABLED, vsstart == 0
{
"1024x768-100", {
109998, 1024, 768, 0, 88, 368, 1392, 0, 8, 24, 792,
1024, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_LOW
|
PM3VideoControl_VSYNC_ACTIVE_LOW
| PM3VideoControl_PIXELSIZE_8BIT}},
*/
/* Generated mode : "1024x768-100", from ??? */
{
"1024x768-100", {
115500, 1024, 768, 32, 224, 416, 1440, 3, 13, 34, 802, 1024, 0, 8,
PM3VideoControl_ENABLE|PM3VideoControl_HSYNC_ACTIVE_LOW|
PM3VideoControl_VSYNC_ACTIVE_LOW|PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1152x864-43-lace" */
/* INTERLACED NOT SUPPORTED
{"1152x864-43-lace", {64998, 1152, 864, 72, 200, 264, 1416, 78, 87, 191, 1055, 1152, 0, 8, PM3VideoControl_ENABLE|PM3VideoControl_HSYNC_ACTIVE_HIGH|PM3VideoControl_VSYNC_ACTIVE_HIGH|PM3VideoControl_PIXELSIZE_8BIT}},
INTERLACED NOT SUPPORTED */
/* Generated mode : "1152x864-47-lace" */
/* INTERLACED NOT SUPPORTED
{"1152x864-47-lace", {64998, 1152, 864, 88, 216, 296, 1448, 30, 39, 83, 947, 1152, 0, 8, PM3VideoControl_ENABLE|PM3VideoControl_HSYNC_ACTIVE_HIGH|PM3VideoControl_VSYNC_ACTIVE_HIGH|PM3VideoControl_PIXELSIZE_8BIT}},
INTERLACED NOT SUPPORTED */
/* Generated mode : "1152x864-60" */
{
"1152x864-60", {
80000, 1152, 864, 64, 176, 304, 1456, 6, 11, 52,
916, 1152, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1152x864-70" */
{
"1152x864-70", {
100000, 1152, 864, 40, 192, 360, 1512, 13, 24, 81,
945, 1152, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1152x864-75" */
{
"1152x864-75", {
109998, 1152, 864, 24, 168, 312, 1464, 45, 53, 138,
1002, 1152, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1152x864-80" */
{
"1152x864-80", {
109998, 1152, 864, 16, 128, 288, 1440, 30, 37, 94,
958, 1152, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1280x1024-43-lace" */
/* INTERLACED NOT SUPPORTED
{"1280x1024-43-lace", {80000, 1024, 1024, 80, 160, 320, 1344, 50, 60, 125, 1149, 1024, 0, 8, PM3VideoControl_ENABLE|PM3VideoControl_HSYNC_ACTIVE_HIGH|PM3VideoControl_VSYNC_ACTIVE_HIGH|PM3VideoControl_PIXELSIZE_8BIT}},
INTERLACED NOT SUPPORTED */
/* Generated mode : "1280x1024-47-lace" */
/* INTERLACED NOT SUPPORTED
{"1280x1024-47-lace", {80000, 1280, 1024, 80, 160, 320, 1600, 1, 11, 29, 1053, 1280, 0, 8, PM3VideoControl_ENABLE|PM3VideoControl_HSYNC_ACTIVE_HIGH|PM3VideoControl_VSYNC_ACTIVE_HIGH|PM3VideoControl_PIXELSIZE_8BIT}},
INTERLACED NOT SUPPORTED */
/* Generated mode : "1280x1024-60" */
{
"1280x1024-60", {
107991, 1280, 1024, 48, 160, 408, 1688, 1, 4, 42,
1066, 1280, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1280x1024-70" */
{
"1280x1024-70", {
125992, 1280, 1024, 80, 192, 408, 1688, 1, 6, 42,
1066, 1280, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1280x1024-74" */
{
"1280x1024-74", {
134989, 1280, 1024, 32, 176, 432, 1712, 0, 30, 40,
1064, 1280, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1280x1024-75" */
{
"1280x1024-75", {
134989, 1280, 1024, 16, 160, 408, 1688, 1, 4, 42,
1066, 1280, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_HIGH
|
PM3VideoControl_VSYNC_ACTIVE_HIGH
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1600x1200-60" */
{
"1600x1200-60", {
155981, 1600, 1200, 32, 192, 448, 2048, 10, 18, 70,
1270, 1600, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_LOW
|
PM3VideoControl_VSYNC_ACTIVE_LOW
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1600x1200-66" */
{
"1600x1200-66", {
171998, 1600, 1200, 40, 176, 480, 2080, 3, 6, 53,
1253, 1600, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_LOW
|
PM3VideoControl_VSYNC_ACTIVE_LOW
| PM3VideoControl_PIXELSIZE_8BIT}},
/* Generated mode : "1600x1200-76" */
{
"1600x1200-76", {
197980, 1600, 1200, 40, 176, 480, 2080, 3, 8, 50,
1250, 1600, 0, 8,
PM3VideoControl_ENABLE |
PM3VideoControl_HSYNC_ACTIVE_LOW
|
PM3VideoControl_VSYNC_ACTIVE_LOW
| PM3VideoControl_PIXELSIZE_8BIT}},
/* ##### end of auto-generated mode */
{
"\0",}
};
/* more mandatory stuff (see skeletonfb.c + framebuffer driver HOWTO */
static struct pm3fb_info fb_info[PM3_MAX_BOARD];
static struct pm3fb_par current_par[PM3_MAX_BOARD];
static int current_par_valid[PM3_MAX_BOARD];
/* to allow explicit filtering of board */
short bus[PM3_MAX_BOARD];
short slot[PM3_MAX_BOARD];
short func[PM3_MAX_BOARD];
short disable[PM3_MAX_BOARD];
short noaccel[PM3_MAX_BOARD];
char fontn[PM3_MAX_BOARD][PM3_FONTNAME_SIZE];
short depth[PM3_MAX_BOARD];
short flatpanel[PM3_MAX_BOARD];
static struct display disp[PM3_MAX_BOARD];
static char g_options[PM3_OPTIONS_SIZE] __initdata = "pm3fb,dummy";
short printtimings = 0;
short forcesize[PM3_MAX_BOARD];
/* ********************* */
/* ***** prototype ***** */
/* ********************* */
/* card-specific */
static void pm3fb_j2000_setup(struct pm3fb_info *l_fb_info);
/* permedia3-specific */
static pm3fb_timing_result pm3fb_preserve_memory_timings(struct pm3fb_info *l_fb_info);
static pm3fb_timing_result pm3fb_try_memory_timings(struct pm3fb_info *l_fb_info);
static void pm3fb_write_memory_timings(struct pm3fb_info *l_fb_info);
static unsigned long pm3fb_read_dac_reg(struct pm3fb_info *l_fb_info,
unsigned long r);
static unsigned long pm3fb_CalculateClock(struct pm3fb_info *l_fb_info, unsigned long reqclock, /* In kHz units */
unsigned long refclock, /* In kHz units */
unsigned char *prescale, /* ClkPreScale */
unsigned char *feedback, /* ClkFeedBackScale */
unsigned char *postscale
/* ClkPostScale */ );
static void pm3fb_clear_memory(struct pm3fb_info *l_fb_info, u32 cc);
static void pm3fb_clear_colormap(struct pm3fb_info *l_fb_info, unsigned char r, unsigned char g, unsigned char b);
static void pm3fb_common_init(struct pm3fb_info *l_fb_info);
static int pm3fb_Shiftbpp(struct pm3fb_info *l_fb_info,
unsigned long depth, int v);
static int pm3fb_Unshiftbpp(struct pm3fb_info *l_fb_info,
unsigned long depth, int v);
static void pm3fb_mapIO(struct pm3fb_info *l_fb_info);
static void pm3fb_unmapIO(struct pm3fb_info *l_fb_info);
#if defined(PM3FB_MASTER_DEBUG) && (PM3FB_MASTER_DEBUG >= 2)
static void pm3fb_show_cur_mode(struct pm3fb_info *l_fb_info);
#endif
static void pm3fb_show_cur_timing(struct pm3fb_info *l_fb_info);
static void pm3fb_write_mode(struct pm3fb_info *l_fb_info);
static void pm3fb_read_mode(struct pm3fb_info *l_fb_info,
struct pm3fb_par *curpar);
static unsigned long pm3fb_size_memory(struct pm3fb_info *l_fb_info);
/* accelerated permedia3-specific */
#ifdef PM3FB_USE_ACCEL
static void pm3fb_wait_pm3(struct pm3fb_info *l_fb_info);
static void pm3fb_init_engine(struct pm3fb_info *l_fb_info);
#ifdef FBCON_HAS_CFB32
static void pm3fb_cfb32_clear(struct vc_data *conp,
struct display *p,
int sy, int sx, int height, int width);
static void pm3fb_cfb32_clear_margins(struct vc_data *conp,
struct display *p, int bottom_only);
#endif /* FBCON_HAS_CFB32 */
#ifdef FBCON_HAS_CFB16
static void pm3fb_cfb16_clear(struct vc_data *conp,
struct display *p,
int sy, int sx, int height, int width);
static void pm3fb_cfb16_clear_margins(struct vc_data *conp,
struct display *p, int bottom_only);
#endif /* FBCON_HAS_CFB16 */
#ifdef FBCON_HAS_CFB8
static void pm3fb_cfb8_clear(struct vc_data *conp,
struct display *p,
int sy, int sx, int height, int width);
static void pm3fb_cfb8_clear_margins(struct vc_data *conp,
struct display *p, int bottom_only);
#endif /* FBCON_HAS_CFB8 */
#if defined(FBCON_HAS_CFB8) || defined(FBCON_HAS_CFB16) || defined(FBCON_HAS_CFB32)
static void pm3fb_cfbX_bmove(struct display *p,
int sy, int sx,
int dy, int dx, int height, int width);
static void pm3fb_cfbX_putc(struct vc_data *conp, struct display *p,
int c, int yy, int xx);
static void pm3fb_cfbX_putcs(struct vc_data *conp, struct display *p,
const unsigned short *s, int count, int yy,
int xx);
static void pm3fb_cfbX_revc(struct display *p, int xx, int yy);
#endif /* FBCON_HAS_CFB8 || FBCON_HAS_CFB16 || FBCON_HAS_CFB32 */
#endif /* PM3FB_USE_ACCEL */
/* pre-init */
static void pm3fb_mode_setup(char *mode, unsigned long board_num);
static void pm3fb_pciid_setup(char *pciid, unsigned long board_num);
static char *pm3fb_boardnum_setup(char *options, unsigned long *bn);
static void pm3fb_real_setup(char *options);
/* fbdev */
static int pm3fb_encode_fix(struct fb_fix_screeninfo *fix,
const void *par, struct fb_info_gen *info);
static int pm3fb_decode_var(const struct fb_var_screeninfo *var,
void *par, struct fb_info_gen *info);
static void pm3fb_encode_depth(struct fb_var_screeninfo *var, long d);
static int pm3fb_encode_var(struct fb_var_screeninfo *var,
const void *par, struct fb_info_gen *info);
static void pm3fb_get_par(void *par, struct fb_info_gen *info);
static void pm3fb_set_par(const void *par, struct fb_info_gen *info);
static void pm3fb_set_color(struct pm3fb_info *l_fb_info,
unsigned char regno, unsigned char r,
unsigned char g, unsigned char b);
static int pm3fb_getcolreg(unsigned regno, unsigned *red, unsigned *green,
unsigned *blue, unsigned *transp,
struct fb_info *info);
static int pm3fb_setcolreg(unsigned regno, unsigned red, unsigned green,
unsigned blue, unsigned transp,
struct fb_info *info);
static int pm3fb_blank(int blank_mode, struct fb_info_gen *info);
static void pm3fb_set_disp(const void *par, struct display *disp,
struct fb_info_gen *info);
static void pm3fb_detect(void);
static int pm3fb_pan_display(const struct fb_var_screeninfo *var,
struct fb_info_gen *info);
static int pm3fb_ioctl(struct fb_info *info, u_int cmd, u_long arg);
/* the struct that hold them together */
struct fbgen_hwswitch pm3fb_switch = {
pm3fb_detect, pm3fb_encode_fix, pm3fb_decode_var, pm3fb_encode_var,
pm3fb_get_par, pm3fb_set_par, pm3fb_getcolreg,
pm3fb_pan_display, pm3fb_blank, pm3fb_set_disp
};
static struct fb_ops pm3fb_ops = {
.owner = THIS_MODULE,
.fb_get_fix = fbgen_get_fix,
.fb_get_var = fbgen_get_var,
.fb_set_var = fbgen_set_var,
.fb_get_cmap = fbgen_get_cmap,
.fb_set_cmap = fbgen_set_cmap,
.fb_setcolreg = pm3fb_setcolreg,
.fb_pan_display =fbgen_pan_display,
.fb_blank = fbgen_blank,
.fb_ioctl = pm3fb_ioctl,
};
#ifdef PM3FB_USE_ACCEL
#ifdef FBCON_HAS_CFB32
static struct display_switch pm3fb_cfb32 = {
fbcon_cfb32_setup, pm3fb_cfbX_bmove, pm3fb_cfb32_clear,
pm3fb_cfbX_putc, pm3fb_cfbX_putcs, pm3fb_cfbX_revc,
NULL /* cursor() */ , NULL /* set_font() */ ,
pm3fb_cfb32_clear_margins,
FONTWIDTHRANGE(1, 16) /* true only if accelerated... */
};
#endif /* FBCON_HAS_CFB32 */
#ifdef FBCON_HAS_CFB16
static struct display_switch pm3fb_cfb16 = {
fbcon_cfb16_setup, pm3fb_cfbX_bmove, pm3fb_cfb16_clear,
pm3fb_cfbX_putc, pm3fb_cfbX_putcs, pm3fb_cfbX_revc,
NULL /* cursor() */ , NULL /* set_font() */ ,
pm3fb_cfb16_clear_margins,
FONTWIDTHRANGE(1, 16) /* true only if accelerated... */
};
#endif /* FBCON_HAS_CFB16 */
#ifdef FBCON_HAS_CFB8
static struct display_switch pm3fb_cfb8 = {
fbcon_cfb8_setup, pm3fb_cfbX_bmove, pm3fb_cfb8_clear,
pm3fb_cfbX_putc, pm3fb_cfbX_putcs, pm3fb_cfbX_revc,
NULL /* cursor() */ , NULL /* set_font() */ ,
pm3fb_cfb8_clear_margins,
FONTWIDTHRANGE(1, 16) /* true only if accelerated... */
};
#endif /* FBCON_HAS_CFB8 */
#endif /* PM3FB_USE_ACCEL */
/* ****************************** */
/* ***** card-specific data ***** */
/* ****************************** */
struct pm3fb_card_timings {
unsigned long memsize; /* 0 for last value (i.e. default) */
struct pm3fb_timings memt;
};
static struct pm3fb_card_timings t_FormacProFormance3[] = {
{ 16, { 0x02e311b8, 0x06100205, 0x08000002, 0x00000079, 0x00000000} },
{ 0, { 0x02e311b8, 0x06100205, 0x08000002, 0x00000079, 0x00000000} } /* from 16 MB PF3 */
};
static struct pm3fb_card_timings t_AppianJeronimo2000[] = {
{ 32, { 0x02e311B8, 0x07424905, 0x0c000003, 0x00000061, 0x00000000} },
{ 0, { 0x02e311B8, 0x07424905, 0x0c000003, 0x00000061, 0x00000000} } /* from 32MB J2000 */
};
static struct pm3fb_card_timings t_3DLabsOxygenVX1[] = {
{ 32, { 0x30e311b8, 0x08501204, 0x08000002, 0x0000006b, 0x00000000} },
{ 0, { 0x30e311b8, 0x08501204, 0x08000002, 0x0000006b, 0x00000000} } /* from 32MB VX1 */
};
static struct {
char cardname[32]; /* recognized card name */
u16 subvendor; /* subvendor of the card */
u16 subdevice; /* subdevice of the card */
u8 func; /* function of the card to which the extra init apply */
void (*specific_setup)(struct pm3fb_info *l_fb_info); /* card/func specific setup, done before _any_ FB access */
struct pm3fb_card_timings *c_memt; /* defauls timings for the boards */
} cardbase[] = {
{ "Unknown Permedia3 board", 0xFFFF, 0xFFFF, 0xFF, NULL, NULL },
{ "Appian Jeronimo 2000 head 1", 0x1097, 0x3d32, 1, NULL,
t_AppianJeronimo2000
},
{ "Appian Jeronimo 2000 head 2", 0x1097, 0x3d32, 2, pm3fb_j2000_setup,
t_AppianJeronimo2000
},
{ "Formac ProFormance 3", PCI_VENDOR_ID_3DLABS, 0x000a, 0, NULL, /* Formac use 3DLabs ID ?!? */
t_FormacProFormance3
},
{ "3DLabs Permedia3 Create!", PCI_VENDOR_ID_3DLABS, 0x0127, 0, NULL, NULL },
{ "3DLabs Oxygen VX1 PCI", PCI_VENDOR_ID_3DLABS, 0x0121, 0, NULL,
t_3DLabsOxygenVX1
},
{ "3DLabs Oxygen VX1 AGP", PCI_VENDOR_ID_3DLABS, 0x0125, 0, NULL, NULL },
{ "3DLabs Oxygen VX1-16 AGP", PCI_VENDOR_ID_3DLABS, 0x0140, 0, NULL, NULL },
{ "3DLabs Oxygen VX1-1600SW PCI", PCI_VENDOR_ID_3DLABS, 0x0800, 0, NULL, NULL },
{ "\0", 0x0, 0x0, 0, NULL, NULL }
};
/* ********************************** */
/* ***** card-specific function ***** */
/* ********************************** */
static void pm3fb_j2000_setup(struct pm3fb_info *l_fb_info)
{ /* the appian j2000 require more initialization of the second head */
/* l_fb_info must point to the _second_ head of the J2000 */
DTRACE;
l_fb_info->memt = t_AppianJeronimo2000[0].memt; /* 32 MB, first and only j2000 ? */
pm3fb_write_memory_timings(l_fb_info);
}
/* *************************************** */
/* ***** permedia3-specific function ***** */
/* *************************************** */
static pm3fb_timing_result pm3fb_preserve_memory_timings(struct pm3fb_info *l_fb_info)
{
l_fb_info->memt.caps = PM3_READ_REG(PM3LocalMemCaps);
l_fb_info->memt.timings = PM3_READ_REG(PM3LocalMemTimings);
l_fb_info->memt.control = PM3_READ_REG(PM3LocalMemControl);
l_fb_info->memt.refresh = PM3_READ_REG(PM3LocalMemRefresh);
l_fb_info->memt.powerdown = PM3_READ_REG(PM3LocalMemPowerDown);
if ((l_fb_info->memt.caps == PM3FB_UNKNOWN_TIMING_VALUE) ||
(l_fb_info->memt.timings == PM3FB_UNKNOWN_TIMING_VALUE) ||
(l_fb_info->memt.control == PM3FB_UNKNOWN_TIMING_VALUE) ||
(l_fb_info->memt.refresh == PM3FB_UNKNOWN_TIMING_VALUE) ||
(l_fb_info->memt.powerdown == PM3FB_UNKNOWN_TIMING_VALUE))
{
printk(KERN_ERR "pm3fb: invalid memory timings in permedia3 board #%ld\n", l_fb_info->board_num);
return(pm3fb_try_memory_timings(l_fb_info));
}
return(pm3fb_timing_ok);
}
static pm3fb_timing_result pm3fb_try_memory_timings(struct pm3fb_info *l_fb_info)
{
if (cardbase[l_fb_info->board_type].c_memt)
{
int i = 0, done = 0;
while (!done)
{
if ((cardbase[l_fb_info->board_type].c_memt[i].memsize == l_fb_info->fb_size)
|| !(cardbase[l_fb_info->board_type].c_memt[i].memsize))
{ /* will use the 0-sized timings by default */
done = 1;
l_fb_info->memt = cardbase[l_fb_info->board_type].c_memt[i].memt;
printk(KERN_WARNING "pm3fb: trying to use predefined memory timings for permedia3 board #%ld (%s, %ld MB)\n",
l_fb_info->board_num,
cardbase[l_fb_info->board_type].cardname,
cardbase[l_fb_info->board_type].c_memt[i].memsize);
pm3fb_write_memory_timings(l_fb_info);
return(pm3fb_timing_retry);
}
i++;
}
} else
return(pm3fb_timing_problem);
return(pm3fb_timing_ok);
}
static void pm3fb_write_memory_timings(struct pm3fb_info *l_fb_info)
{
unsigned char m, n, p;
unsigned long clockused;
PM3_SLOW_WRITE_REG(PM3LocalMemCaps, l_fb_info->memt.caps);
PM3_SLOW_WRITE_REG(PM3LocalMemTimings, l_fb_info->memt.timings);
PM3_SLOW_WRITE_REG(PM3LocalMemControl, l_fb_info->memt.control);
PM3_SLOW_WRITE_REG(PM3LocalMemRefresh, l_fb_info->memt.refresh);
PM3_SLOW_WRITE_REG(PM3LocalMemPowerDown, l_fb_info->memt.powerdown);
clockused =
pm3fb_CalculateClock(l_fb_info, 2 * 105000, PM3_REF_CLOCK, &m,
&n, &p);
PM3_WRITE_DAC_REG(PM3RD_KClkPreScale, m);
PM3_WRITE_DAC_REG(PM3RD_KClkFeedbackScale, n);
PM3_WRITE_DAC_REG(PM3RD_KClkPostScale, p);
PM3_WRITE_DAC_REG(PM3RD_KClkControl,
PM3RD_KClkControl_STATE_RUN |
PM3RD_KClkControl_SOURCE_PLL |
PM3RD_KClkControl_ENABLE);
PM3_WRITE_DAC_REG(PM3RD_MClkControl,
PM3RD_MClkControl_STATE_RUN |
PM3RD_MClkControl_SOURCE_KCLK |
PM3RD_MClkControl_ENABLE);
PM3_WRITE_DAC_REG(PM3RD_SClkControl,
PM3RD_SClkControl_STATE_RUN |
PM3RD_SClkControl_SOURCE_PCLK |
PM3RD_SClkControl_ENABLE);
}
static unsigned long pm3fb_read_dac_reg(struct pm3fb_info *l_fb_info,
unsigned long r)
{
DASSERT((l_fb_info->vIOBase != (unsigned char *) (-1)),
"l_fb_info->vIOBase mapped in read dac reg\n");
PM3_SET_INDEX(r);
mb();
return (PM3_READ_REG(PM3RD_IndexedData));
}
/* Calculating various clock parameter */
static unsigned long pm3fb_CalculateClock(struct pm3fb_info *l_fb_info, unsigned long reqclock, /* In kHz units */
unsigned long refclock, /* In kHz units */
unsigned char *prescale, /* ClkPreScale */
unsigned char *feedback, /* ClkFeedBackScale */
unsigned char *postscale
/* ClkPostScale */ )
{
int f, pre, post;
unsigned long freq;
long freqerr = 1000;
unsigned long actualclock = 0;
DTRACE;
for (f = 1; f < 256; f++) {
for (pre = 1; pre < 256; pre++) {
for (post = 0; post < 5; post++) {
freq =
((2 * refclock * f) /
(pre * (1 << post)));
if ((reqclock > freq - freqerr)
&& (reqclock < freq + freqerr)) {
freqerr =
(reqclock >
freq) ? reqclock -
freq : freq - reqclock;
*feedback = f;
*prescale = pre;
*postscale = post;
actualclock = freq;
}
}
}
}
return (actualclock);
}
static int pm3fb_Shiftbpp(struct pm3fb_info *l_fb_info,
unsigned long depth, int v)
{
DTRACE;
switch (depth) {
case 8:
return (v >> 4);
case 12:
case 15:
case 16:
return (v >> 3);
case 32:
return (v >> 2);
}
DPRINTK(1, "Unsupported depth %ld\n", depth);
return (0);
}
static int pm3fb_Unshiftbpp(struct pm3fb_info *l_fb_info,
unsigned long depth, int v)
{
DTRACE;
switch (depth) {
case 8:
return (v << 4);
case 12:
case 15:
case 16:
return (v << 3);
case 32:
return (v << 2);
}
DPRINTK(1, "Unsupported depth %ld\n", depth);
return (0);
}
static void pm3fb_mapIO(struct pm3fb_info *l_fb_info)
{
DTRACE;
l_fb_info->vIOBase =
ioremap((unsigned long) l_fb_info->pIOBase, PM3_REGS_SIZE);
l_fb_info->v_fb =
ioremap((unsigned long) l_fb_info->p_fb, l_fb_info->fb_size);
DPRINTK(2, "IO mapping : IOBase %lx / %lx, fb %lx / %lx\n",
(unsigned long) l_fb_info->pIOBase,
(unsigned long) l_fb_info->vIOBase,
(unsigned long) l_fb_info->p_fb,
(unsigned long) l_fb_info->v_fb);
}
static void pm3fb_unmapIO(struct pm3fb_info *l_fb_info)
{
DTRACE;
iounmap(l_fb_info->vIOBase);
iounmap(l_fb_info->v_fb);
l_fb_info->vIOBase = (unsigned char *) -1;
l_fb_info->v_fb = (unsigned char *) -1;
}
#if defined(PM3FB_MASTER_DEBUG) && (PM3FB_MASTER_DEBUG >= 2)
static void pm3fb_show_cur_mode(struct pm3fb_info *l_fb_info)
{
DPRINTK(2, "PM3Aperture0: 0x%08x\n", PM3_READ_REG(PM3Aperture0));
DPRINTK(2, "PM3Aperture1: 0x%08x\n", PM3_READ_REG(PM3Aperture1));
DPRINTK(2, "PM3ByAperture1Mode: 0x%08x\n",
PM3_READ_REG(PM3ByAperture1Mode));
DPRINTK(2, "PM3ByAperture2Mode: 0x%08x\n",
PM3_READ_REG(PM3ByAperture2Mode));
DPRINTK(2, "PM3ChipConfig: 0x%08x\n", PM3_READ_REG(PM3ChipConfig));
DPRINTK(2, "PM3FIFODis: 0x%08x\n", PM3_READ_REG(PM3FIFODis));
DPRINTK(2, "PM3HTotal: 0x%08x\n", PM3_READ_REG(PM3HTotal));
DPRINTK(2, "PM3HbEnd: 0x%08x\n", PM3_READ_REG(PM3HbEnd));
DPRINTK(2, "PM3HgEnd: 0x%08x\n", PM3_READ_REG(PM3HgEnd));
DPRINTK(2, "PM3HsEnd: 0x%08x\n", PM3_READ_REG(PM3HsEnd));
DPRINTK(2, "PM3HsStart: 0x%08x\n", PM3_READ_REG(PM3HsStart));
DPRINTK(2, "PM3MemBypassWriteMask: 0x%08x\n",
PM3_READ_REG(PM3MemBypassWriteMask));
DPRINTK(2, "PM3RD_IndexControl: 0x%08x\n",
PM3_READ_REG(PM3RD_IndexControl));
DPRINTK(2, "PM3ScreenBase: 0x%08x\n", PM3_READ_REG(PM3ScreenBase));
DPRINTK(2, "PM3ScreenStride: 0x%08x\n",
PM3_READ_REG(PM3ScreenStride));
DPRINTK(2, "PM3VClkCtl: 0x%08x\n", PM3_READ_REG(PM3VClkCtl));
DPRINTK(2, "PM3VTotal: 0x%08x\n", PM3_READ_REG(PM3VTotal));
DPRINTK(2, "PM3VbEnd: 0x%08x\n", PM3_READ_REG(PM3VbEnd));
DPRINTK(2, "PM3VideoControl: 0x%08x\n",
PM3_READ_REG(PM3VideoControl));
DPRINTK(2, "PM3VsEnd: 0x%08x\n", PM3_READ_REG(PM3VsEnd));
DPRINTK(2, "PM3VsStart: 0x%08x\n", PM3_READ_REG(PM3VsStart));
DPRINTK(2, "PM3RD_ColorFormat: %ld\n",