aboutsummaryrefslogtreecommitdiffstats
path: root/fontmap.c
blob: bfd07e62217d2c150cac0db51f1c311756663acc (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
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

/* $Id: fontmap.c,v 1.5 2003/10/05 17:58:50 reinelt Exp $
 *
 * 5x8 font
 *
 * Copyright 1999, 2000 Michael Reinelt <reinelt@eunet.at>
 *
 * This file is part of LCD4Linux.
 *
 * LCD4Linux is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * LCD4Linux is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *
 * $Log: fontmap.c,v $
 * Revision 1.5  2003/10/05 17:58:50  reinelt
 * libtool junk; copyright messages cleaned up
 *
 * Revision 1.4  2000/08/10 09:44:09  reinelt
 *
 * new debugging scheme: error(), info(), debug()
 * uses syslog if in daemon mode
 *
 * Revision 1.3  2000/03/25 05:50:43  reinelt
 *
 * memory leak in Raster_flush closed
 * driver family logic changed
 *
 * Revision 1.2  2000/03/24 11:36:56  reinelt
 *
 * new syntax for raster configuration
 * changed XRES and YRES to be configurable
 * PPM driver works nice
 *
 * Revision 1.1  2000/03/22 15:36:21  reinelt
 *
 * added '-l' switch (list drivers)
 * generic pixmap driver added
 * X11 Framework done
 *
 */

#include "pixmap.h"
#include "fontmap.h"

#define ______ 0x00
#define _____O 0x01
#define ____O_ 0x02
#define ____OO 0x03
#define ___O__ 0x04
#define ___O_O 0x05
#define ___OO_ 0x06
#define ___OOO 0x07
#define __O___ 0x08
#define __O__O 0x09
#define __O_O_ 0x0a
#define __O_OO 0x0b
#define __OO__ 0x0c
#define __OO_O 0x0d
#define __OOO_ 0x0e
#define __OOOO 0x0f
#define _O____ 0x10
#define _O___O 0x11
#define _O__O_ 0x12
#define _O__OO 0x13
#define _O_O__ 0x14
#define _O_O_O 0x15
#define _O_OO_ 0x16
#define _O_OOO 0x17
#define _OO___ 0x18
#define _OO__O 0x19
#define _OO_O_ 0x1a
#define _OO_OO 0x1b
#define _OOO__ 0x1c
#define _OOO_O 0x1d
#define _OOOO_ 0x1e
#define _OOOOO 0x1f

unsigned char Fontmap[256][8]={
  [0x20] { ______,
	   ______,
	   ______,
	   ______,
	   ______,
	   ______,
	   ______,
	   ______ },
  [0x21] { ___O__,
	   ___O__,
	   ___O__,
	   ___O__,
	   ______,
	   ______,
	   ___O__,
	   ______ },
  [0x22] { __O_O_,
	   __O_O_,
	   __O_O_,
	   ______,
	   ______,
	   ______,
	   ______,
	   ______ },
  [0x23] { __O_O_,
	   __O_O_,
	   _OOOOO,
	   __O_O_,
	   _OOOOO,
	   __O_O_,
	   __O_O_,
	   ______ },
  [0x24] { ___O__,
	   __OOOO,
	   _O_O__,
	   __OOO_,
	   ___O_O,
	   _OOOO_,
	   ___O__,
	   ______ },
  [0x25] { _OO___,
	   _OO__O,
	   ____O_,
	   ___O__,
	   __O___,
	   _O__OO,
	   ____OO,
	   ______ },
  [0x26] { __OO__,
	   _O__O_,
	   _O_O__,
	   __O___,
	   _O_O_O,
	   _O__O_,
	   __OO_O,
	   ______ },
  [0x27] { __OO__,
	   ___O__,
	   __O___,
	   ______,
	   ______,
	   ______,
	   ______,
	   ______ },
  [0x28] { ____O_,
	   ___O__,
	   __O___,
	   __O___,
	   __O___,
	   ___O__,
	   ____O_,
	   ______ },
  [0x29] { __O___,
	   ___O__,
	   ____O_,
	   ____O_,
	   ____O_,
	   ___O__,
	   __O___,
	   ______ },
  [0x2a] { ______,
	   ___O__,
	   _O_O_O,
	   __OOO_,
	   _O_O_O,
	   ___O__,
	   ______,
	   ______ },
  [0x2b] { ______,
	   ___O__,
	   ___O__,
	   _OOOOO,
	   ___O__,
	   ___O__,
	   ______,
	   ______ },
  [0x2c] { ______,
	   ______,
	   ______,
	   ______,
	   __OO__,
	   ___O__,
	   __O___,
	   ______ },
  [0x2d] { ______,
	   ______,
	   ______,
	   _OOOOO,
	   ______,
	   ______,
	   ______,
	   ______ },
  [0x2e] { ______,
	   ______,
	   ______,
	   ______,
	   ______,
	   __OO__,
	   __OO__,
	   ______ },
  [0x2f] { ______,
	   _____O,
	   ____O_,
	   ___O__,
	   __O___,
	   _O____,
	   ______,
	   ______ },
  [0x30] { __OOO_,
	   _O___O,
	   _O__OO,
	   _O_O_O,
	   _OO__O,
	   _O___O,
	   __OOO_,
	   ______ },
  [0x31] { ___O__,
	   __OO__,
	   ___O__,
	   ___O__,
	   ___O__,
	   ___O__,
	   __OOO_,
	   ______ },
  [0x32] { __OOO_,
	   _O___O,
	   _____O,
	   ____O_,
	   ___O__,
	   __O___,
	   _OOOOO,
	   ______ },
  [0x33] { _OOOOO,
	   ____O_,
	   ___O__,
	   ____O_,
	   _____O,
	   _O___O,
	   __OOO_,
	   ______ },
  [0x34] { ____O_,
	   ___OO_,
	   __O_O_,
	   _O__O_,
	   _OOOOO,
	   ____O_,
	   ____O_,
	   ______ },
  [0x35] { _OOOOO,
	   _O____,
	   _O____,
	   _OOOO_,
	   _____O,
	   _O___O,
	   __OOO_,
	   ______ },
  [0x36] { ___OO_,
	   __O___,
	   _O____,
	   _OOOO_,
	   _O___O,
	   _O___O,
	   __OOO_,
	   ______ },
  [0x37] { _OOOOO,
	   _____O,
	   ____O_,
	   ___O__,
	   __O___,
	   __O___,
	   __O___,
	   ______ },
  [0x38] { __OOO_,
	   _O___O,
	   _O___O,
	   __OOO_,
	   _O___O,
	   _O___O,
	   __OOO_,
	   ______ },
  [0x39] { __OOO_,
	   _O___O,
	   _O___O,
	   __OOOO,
	   _____O,
	   ____O_,
	   __OO__,
	   ______ },
  [0x3a] { ______,
	   __OO__,
	   __OO__,
	   ______,
	   __OO__,
	   __OO__,
	   ______,
	   ______ },
  [0x3b] { ______,
	   __OO__,
	   __OO__,
	   ______,
	   __OO__,
	   ___O__,
	   __O___,
	   ______ },
  [0x3c] { ____O_,
	   ___O__,
	   __O___,
	   _O____,
	   __O___,
	   ___O__,
	   ____O_,
	   ______ },
  [0x3d] { ______,
	   ______,
	   _OOOOO,
	   ______,
	   _OOOOO,
	   ______,
	   ______,
	   ______ },
  [0x3e] { _O____,
	   __O___,
	   ___O__,
	   ____O_,
	   ___O__,
	   __O___,
	   _O____,
	   ______ },
  [0x3f] { __OOO_,
	   _O___O,
	   _____O,
	   ____O_,
	   ___O__,
	   ______,
	   ___O__,
	   ______ },
  [0x40] { __OOO_,
	   _O___O,
	   _____O,
	   __OO_O,
	   _O_O_O,
	   _O_O_O,
	   __OOO_,
	   ______ },
  [0x41] { __OOO_,
	   _O___O,
	   _O___O,
	   _O___O,
	   _OOOOO,
	   _O___O,
	   _O___O,
	   ______ },
  [0x42] { _OOOO_,
	   _O___O,
	   _O___O,
	   _OOOO_,
	   _O___O,
	   _O___O,
	   _OOOO_,
	   ______ },
  [0x43] { __OOO_,
	   _O___O,
	   _O____,
	   _O____,
	   _O____,
	   _O___O,
	   __OOO_,
	   ______ },
  [0x44] { _OOO__,
	   _O__O_,
	   _O___O,
	   _O___O,
	   _O___O,
	   _O__O_,
	   _OOO__,
	   ______ },
  [0x45] { _OOOOO,
	   _O____,
	   _O____,
	   _OOOO_,
	   _O____,
	   _O____,
	   _OOOOO,
	   ______ },
  [0x46] { _OOOOO,
	   _O____,
	   _O____,
	   _OOOO_,
	   _O____,
	   _O____,
	   _O____,
	   ______ },
  [0x47] { __OOO_,
	   _O___O,
	   _O____,
	   _O_OOO,
	   _O___O,
	   _O___O,
	   __OOOO,
	   ______ },
  [0x48] { _O___O,
	   _O___O,
	   _O___O,
	   _OOOOO,
	   _O___O,
	   _O___O,
	   _O___O,
	   ______ },
  [0x49] { __OOO_,
	   ___O__,
	   ___O__,
	   ___O__,
	   ___O__,
	   ___O__,
	   __OOO_,
	   ______ },
  [0x4a] { ___OOO,
	   ____O_,
	   ____O_,
	   ____O_,
	   ____O_,
	   _O__O_,
	   __OO__,
	   ______ },
  [0x4b] { _O___O,
	   _O__O_,
	   _O_O__,
	   _OO___,
	   _O_O__,
	   _O__O_,
	   _O___O,
	   ______ },
  [0x4c] { _O____,
	   _O____,
	   _O____,
	   _O____,
	   _O____,
	   _O____,
	   _OOOOO,
	   ______ },
  [0x4d] { _O___O,
	   _OO_OO,
	   _O_O_O,
	   _O_O_O,
	   _O___O,
	   _O___O,
	   _O___O,
	   ______ },
  [0x4e] { _O___O,
	   _O___O,
	   _OO__O,
	   _O_O_O,
	   _O__OO,
	   _O___O,
	   _O___O,
	   ______ },
  [0x4f] { __OOO_,
	   _O___O,
	   _O___O,
	   _O___O,
	   _O___O,
	   _O___O,
	   __OOO_,
	   ______ },
  [0x50] { _OOOO_,
	   _O___O,
	   _O___O,
	   _OOOO_,
	   _O____,
	   _O____,
	   _O____,
	   ______ },
  [0x51] { __OOO_,
	   _O___O,
	   _O___O,
	   _O___O,
	   _O_O_O,
	   _O__O_,
	   __OO_O,
	   ______ },
  [0x52] { _OOOO_,
	   _O___O,
	   _O___O,
	   _OOOO_,
	   _O_O__,
	   _O__O_,
	   _O___O,
	   ______ },
  [0x53] { __OOOO,
	   _O____,
	   _O____,
	   __OOO_,
	   _____O,
	   _____O,
	   _OOOO_,
	   ______ },
  [0x54] { _OOOOO,
	   ___O__,
	   ___O__,
	   ___O__,
	   ___O__,
	   ___O__,
	   ___O__,
	   ______ },
  [0x55] { _O___O,
	   _O___O,
	   _O___O,
	   _O___O,
	   _O___O,
	   _O___O,
	   __OOO_,
	   ______ },
  [0x56] { _O___O,
	   _O___O,
	   _O___O,
	   _O___O,
	   _O___O,
	   __O_O_,
	   ___O__,
	   ______ },
  [0x57] { _O___O,
	   _O___O,
	   _O___O,
	   _O_O_O,
	   _O_O_O,
	   _O_O_O,
	   __O_O_,
	   ______ },
  [0x58] { _O___O,
	   _O___O,
	   __O_O_,
	   ___O__,
	   __O_O_,
	   _O___O,
	   _O___O,
	   ______ },
  [0x59] { _O___O,
	   _O___O,
	   _O___O,
	   __O_O_,
	   ___O__,
	   ___O__,
	   ___O__,
	   ______ },
  [0x5a] { _OOOOO,
	   _____O,
	   ____O_,
	   ___O__,
	   __O___,
	   _O____,
	   _OOOOO,
	   ______ },
  [0x5b] { __OOO_,
	   __O___,
	   __O___,
	   __O___,
	   __O___,
	   __O___,
	   __OOO_,
	   ______ },
  [0x5c] { _O___O,
	   __O_O_,
	   _OOOOO,
	   ___O__,
	   _OOOOO,
	   ___O__,
	   ___O__,
	   ______ },
  [0x5d] { __OOO_,
	   ____O_,
	   ____O_,
	   ____O_,
	   ____O_,
	   ____O_,
	   __OOO_,
	   ______ },
  [0x5e] { ___O__,
	   __O_O_,
	   _O___O,
	   ______,
	   ______,
	   ______,
	   ______,
	   ______ },
  [0x5f] { ______,
	   ______,
	   ______,
	   ______,
	   ______,
	   ______,
	   _OOOOO,
	   ______ },
  [0x60] { __O___,
	   ___O__,
	   ____O_,
	   ______,
	   ______,
	   ______,
	   ______,
	   ______ },
  [0x61] { ______,
	   ______,
	   __OOO_,
	   _____O,
	   __OOOO,
	   _O___O,
	   __OOOO,
	   ______ },
  [0x62] { _O____,
	   _O____,
	   _O____,
	   _O_OO_,
	   _OO__O,
	   _O___O,
	   _OOOO_,
	   ______ },
  [0x63] { ______,
	   ______,
	   __OOO_,
	   _O____,
	   _O____,
	   _O___O,
	   __OOO_,
	   ______ },
  [0x64] { _____O,
	   _____O,
	   _____O,
	   __OO_O,
	   _O__OO,
	   _O___O,
	   __OOOO,
	   ______ },
  [0x65] { ______,
	   ______,
	   __OOO_,
	   _O___O,
	   _OOOOO,
	   _O____,
	   __OOO_,
	   ______ },
  [0x66] { ___OO_,
	   __O__O,
	   __O___,
	   _OOO__,
	   __O___,
	   __O___,
	   __O___,
	   ______ },
  [0x67] { ______,
	   __OOOO,
	   _O___O,
	   _O___O,
	   __OOOO,
	   _____O,
	   __OOO_,
	   ______ },
  [0x68] { _O____,
	   _O____,
	   _O_OO_,
	   _OO__O,
	   _O___O,
	   _O___O,
	   _O___O,
	   ______ },
  [0x69] { ___O__,
	   ______,
	   __OO__,
	   ___O__,
	   ___O__,
	   ___O__,
	   __OOO_,
	   ______ },
  [0x6a] { ____O_,
	   ______,
	   ___OO_,
	   ____O_,
	   ____O_,
	   _O__O_,
	   __OO__,
	   ______ },
  [0x6b] { __O___,
	   __O___,
	   __O__O,
	   __O_O_,
	   __OO__,
	   __O_O_,
	   __O__O,
	   ______ },
  [0x6c] { __OO__,
	   ___O__,
	   ___O__,
	   ___O__,
	   ___O__,
	   ___O__,
	   __OOO_,
	   ______ },
  [0x6d] { ______,
	   ______,
	   _OO_O_,
	   _O_O_O,
	   _O_O_O,
	   _O___O,
	   _O___O,
	   ______ },
  [0x6e] { ______,
	   ______,
	   _OOOO_,
	   _O___O,
	   _O___O,
	   _O___O,
	   _O___O,
	   ______ },
  [0x6f] { ______,
	   ______,
	   __OOO_,
	   _O___O,
	   _O___O,
	   _O___O,
	   __OOO_,
	   ______ },
  [0x70] { ______,
	   ______,
	   _OOOO_,
	   _O___O,
	   _OOOO_,
	   _O____,
	   _O____,
	   ______ },
  [0x71] { ______,
	   ______,
	   __OO_O,
	   _O__OO,
	   __OOOO,
	   _____O,
	   _____O,
	   ______ },
  [0x72] { ______,
	   ______,
	   _O_OO_,
	   _OO__O,
	   _O____,
	   _O____,
	   _O____,
	   ______ },
  [0x73] { ______,
	   ______,
	   __OOO_,
	   _O____,
	   __OOO_,
	   _____O,
	   _OOOO_,
	   ______ },
  [0x74] { __O___,
	   _OOO__,
	   __O___,
	   __O___,
	   __O___,
	   __O__O,
	   ___OO_,
	   ______ },
  [0x75] { ______,
	   ______,
	   _O___O,
	   _O___O,
	   _O___O,
	   _O__OO,
	   __OO_O,
	   ______ },
  [0x76] { ______,
	   ______,
	   _O___O,
	   _O___O,
	   _O___O,
	   __O_O_,
	   ___O__,
	   ______ },
  [0x77] { ______,
	   ______,
	   _O___O,
	   _O___O,
	   _O___O,
	   _O_O_O,
	   __O_O_,
	   ______ },
  [0x78] { ______,
	   ______,
	   _O___O,
	   __O_O_,
	   ___O__,
	   __O_O_,
	   _O___O,
	   ______ },
  [0x79] { ______,
	   ______,
	   _O___O,
	   _O___O,
	   __OOOO,
	   _____O,
	   __OOO_,
	   ______ },
  [0x7a] { ______,
	   ______,
	   _OOOOO,
	   ____O_,
	   ___O__,
	   __O___,
	   _OOOOO,
	   ______ },
  [0x7b] { ____O_,
	   ___O__,
	   ___O__,
	   __O___,
	   ___O__,
	   ___O__,
	   ____O_,
	   ______ },
  [0x7c] { ___O__,
	   ___O__,
	   ___O__,
	   ___O__,
	   ___O__,
	   ___O__,
	   ___O__,
	   ______ },
  [0x7d] { __O___,
	   ___O__,
	   ___O__,
	   ____O_,
	   ___O__,
	   ___O__,
	   __O___,
	   ______ },
  [0x7e] { ______,
	   ___O__,
	   ____O_,
	   _OOOOO,
	   ____O_,
	   ___O__,
	   ______,
	   ______ },

  [0x7f] { ______,
	   ___O__,
	   __O___,
	   _OOOOO,
	   __O___,
	   ___O__,
	   ______,
	   ______ },
  [0xb0] { __OOO_,
	   __O_O_,
	   __OOO_,
	   ______,
	   ______,
	   ______,
	   ______,
	   ______ },
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 03:00:23 +0000
class="nl">tv_usec : now.tv_sec >= end.tv_sec) { error("%s: timeout waiting for busy flag on controller %x (%x)", Name, ctrlmask, data); if (++errors >= MAX_BUSYFLAG_ERRORS) { error("%s: too many busy flag failures, turning off busy flag checking.", Name); UseBusy = 0; } break; } } } /* RS=low, RW=low, EN=low */ if (Bits == 8) { /* Lower EN */ drv_generic_parport_control(enable, 0); /* Address hold time */ ndelay(T_AH); drv_generic_parport_control(SIGNAL_RW | SIGNAL_RS, 0); } else { /* Lower EN */ drv_generic_parport_data(SIGNAL_RW); ndelay(T_AH); drv_generic_parport_data(0); } /* set data-lines to output */ drv_generic_parport_direction(0); } ctrlmask >>= 1; } } static void drv_HD_PP_nibble(const unsigned char controller, const unsigned char nibble) { unsigned char enable; /* enable signal: 'controller' is a bitmask */ /* bit n .. send to controller #n */ /* so we can send a byte to more controllers at the same time! */ enable = 0; if (controller & 0x01) enable |= SIGNAL_ENABLE; if (controller & 0x02) enable |= SIGNAL_ENABLE2; if (controller & 0x04) enable |= SIGNAL_ENABLE3; if (controller & 0x08) enable |= SIGNAL_ENABLE4; /* clear ENABLE */ /* put data on DB1..DB4 */ /* nibble already contains RS bit! */ drv_generic_parport_data(nibble); /* Address set-up time */ ndelay(T_AS); /* rise ENABLE */ drv_generic_parport_data(nibble | enable); /* Enable pulse width */ ndelay(T_PW); /* lower ENABLE */ drv_generic_parport_data(nibble); } static void drv_HD_PP_byte(const unsigned char controller, const unsigned char data, const unsigned char RS) { /* send high nibble of the data */ drv_HD_PP_nibble(controller, ((data >> 4) & 0x0f) | RS); /* Make sure we honour T_CYCLE */ ndelay(T_CYCLE - T_AS - T_PW); /* send low nibble of the data */ drv_HD_PP_nibble(controller, (data & 0x0f) | RS); } static void drv_HD_PP_command(const unsigned char controller, const unsigned char cmd, const int delay) { unsigned char enable; if (UseBusy) drv_HD_PP_busy(controller); if (Bits == 8) { /* enable signal: 'controller' is a bitmask */ /* bit n .. send to controller #n */ /* so we can send a byte to more controllers at the same time! */ enable = 0; if (controller & 0x01) enable |= SIGNAL_ENABLE; if (controller & 0x02) enable |= SIGNAL_ENABLE2; if (controller & 0x04) enable |= SIGNAL_ENABLE3; if (controller & 0x08) enable |= SIGNAL_ENABLE4; /* put data on DB1..DB8 */ drv_generic_parport_data(cmd); /* clear RW and RS */ drv_generic_parport_control(SIGNAL_RW | SIGNAL_RS, 0); /* Address set-up time */ ndelay(T_AS); /* send command */ drv_generic_parport_toggle(enable, 1, T_PW); } else { drv_HD_PP_byte(controller, cmd, 0); } /* wait for command completion */ if (!UseBusy) udelay(delay); } static void drv_HD_PP_data(const unsigned char controller, const char *string, const int len, const int delay) { int l = len; unsigned char enable; /* sanity check */ if (len <= 0) return; if (Bits == 8) { /* enable signal: 'controller' is a bitmask */ /* bit n .. send to controller #n */ /* so we can send a byte to more controllers at the same time! */ enable = 0; if (controller & 0x01) enable |= SIGNAL_ENABLE; if (controller & 0x02) enable |= SIGNAL_ENABLE2; if (controller & 0x04) enable |= SIGNAL_ENABLE3; if (controller & 0x08) enable |= SIGNAL_ENABLE4; if (!UseBusy) { /* clear RW, set RS */ drv_generic_parport_control(SIGNAL_RW | SIGNAL_RS, SIGNAL_RS); /* Address set-up time */ ndelay(T_AS); } while (l--) { if (UseBusy) { drv_HD_PP_busy(controller); /* clear RW, set RS */ drv_generic_parport_control(SIGNAL_RW | SIGNAL_RS, SIGNAL_RS); /* Address set-up time */ ndelay(T_AS); } /* put data on DB1..DB8 */ drv_generic_parport_data(*(string++)); /* send command */ drv_generic_parport_toggle(enable, 1, T_PW); /* wait for command completion */ if (!UseBusy) udelay(delay); } } else { /* 4 bit mode */ while (l--) { if (UseBusy) drv_HD_PP_busy(controller); /* send data with RS enabled */ drv_HD_PP_byte(controller, *(string++), SIGNAL_RS); /* wait for command completion */ if (!UseBusy) udelay(delay); } } } static int drv_HD_PP_load(const char *section) { if (cfg_number(section, "Bits", 8, 4, 8, &Bits) < 0) return -1; if (Bits != 4 && Bits != 8) { error("%s: bad %s.Bits '%d' from %s, should be '4' or '8'", Name, section, Bits, cfg_source()); return -1; } /* LCM-162 only supports 8-bit-mode */ if (Capabilities & CAP_LCM162 && Bits != 8) { error("%s: Model '%s' does not support %d bit mode!", Name, Models[Model].name, Bits); Bits = 8; } info("%s: using %d bit mode", Name, Bits); if (drv_generic_parport_open(section, Name) != 0) { error("%s: could not initialize parallel port!", Name); return -1; } /* Soft-Wiring */ if (Capabilities & CAP_LCM162) { /* the LCM-162 is hardwired */ if ((SIGNAL_RS = drv_generic_parport_hardwire_ctrl("RS", "SLCTIN")) == 0xff) return -1; if ((SIGNAL_RW = drv_generic_parport_hardwire_ctrl("RW", "INIT")) == 0xff) return -1; if ((SIGNAL_ENABLE = drv_generic_parport_hardwire_ctrl("ENABLE", "AUTOFD")) == 0xff) return -1; if ((SIGNAL_ENABLE2 = drv_generic_parport_hardwire_ctrl("ENABLE2", "GND")) == 0xff) return -1; if ((SIGNAL_ENABLE3 = drv_generic_parport_hardwire_ctrl("ENABLE3", "GND")) == 0xff) return -1; if ((SIGNAL_ENABLE4 = drv_generic_parport_hardwire_ctrl("ENABLE4", "GND")) == 0xff) return -1; if ((SIGNAL_BACKLIGHT = drv_generic_parport_hardwire_ctrl("BACKLIGHT", "GND")) == 0xff) return -1; if ((SIGNAL_GPO = drv_generic_parport_hardwire_ctrl("GPO", "GND")) == 0xff) return -1; } else { if (Bits == 8) { if ((SIGNAL_RS = drv_generic_parport_wire_ctrl("RS", "AUTOFD")) == 0xff) return -1; if ((SIGNAL_RW = drv_generic_parport_wire_ctrl("RW", "GND")) == 0xff) return -1; if ((SIGNAL_ENABLE = drv_generic_parport_wire_ctrl("ENABLE", "STROBE")) == 0xff) return -1; if ((SIGNAL_ENABLE2 = drv_generic_parport_wire_ctrl("ENABLE2", "GND")) == 0xff) return -1; if ((SIGNAL_ENABLE3 = drv_generic_parport_wire_ctrl("ENABLE3", "GND")) == 0xff) return -1; if ((SIGNAL_ENABLE4 = drv_generic_parport_wire_ctrl("ENABLE4", "GND")) == 0xff) return -1; } else { if ((SIGNAL_RS = drv_generic_parport_wire_data("RS", "DB4")) == 0xff) return -1; if ((SIGNAL_RW = drv_generic_parport_wire_data("RW", "DB5")) == 0xff) return -1; if ((SIGNAL_ENABLE = drv_generic_parport_wire_data("ENABLE", "DB6")) == 0xff) return -1; if ((SIGNAL_ENABLE2 = drv_generic_parport_wire_data("ENABLE2", "GND")) == 0xff) return -1; if ((SIGNAL_ENABLE3 = drv_generic_parport_wire_data("ENABLE3", "GND")) == 0xff) return -1; if ((SIGNAL_ENABLE4 = drv_generic_parport_wire_data("ENABLE4", "GND")) == 0xff) return -1; } /* backlight and GPO are always control signals */ if ((SIGNAL_BACKLIGHT = drv_generic_parport_wire_ctrl("BACKLIGHT", "GND")) == 0xff) return -1; if ((SIGNAL_GPO = drv_generic_parport_wire_ctrl("GPO", "GND")) == 0xff) return -1; } /* clear capabilities if corresponding signal is GND */ if (SIGNAL_BACKLIGHT == 0) { Capabilities &= ~CAP_BACKLIGHT; } if (SIGNAL_GPO == 0) { Capabilities &= ~CAP_GPO; } /* clear all signals */ if (Bits == 8) { drv_generic_parport_control(SIGNAL_RS | SIGNAL_RW | SIGNAL_ENABLE | SIGNAL_ENABLE2 | SIGNAL_ENABLE3 | SIGNAL_ENABLE4 | SIGNAL_BACKLIGHT | SIGNAL_GPO, 0); } else { drv_generic_parport_data(0); } /* set direction: write */ drv_generic_parport_direction(0); /* initialize *all* controllers */ if (Bits == 8) { drv_HD_PP_command(allControllers, 0x30, T_INIT1); /* 8 Bit mode, wait 4.1 ms */ drv_HD_PP_command(allControllers, 0x30, T_INIT2); /* 8 Bit mode, wait 100 us */ drv_HD_PP_command(allControllers, 0x38, T_EXEC); /* 8 Bit mode, 1/16 duty cycle, 5x8 font */ } else { drv_HD_PP_nibble(allControllers, 0x03); udelay(T_INIT1); /* 4 Bit mode, wait 4.1 ms */ drv_HD_PP_nibble(allControllers, 0x03); udelay(T_INIT2); /* 4 Bit mode, wait 100 us */ drv_HD_PP_nibble(allControllers, 0x03); udelay(T_INIT1); /* 4 Bit mode, wait 4.1 ms */ drv_HD_PP_nibble(allControllers, 0x02); udelay(T_INIT2); /* 4 Bit mode, wait 100 us */ drv_HD_PP_command(allControllers, 0x28, T_EXEC); /* 4 Bit mode, 1/16 duty cycle, 5x8 font */ } /* maybe use busy-flag from now on */ /* (we can't use the busy flag during the init sequence) */ cfg_number(section, "UseBusy", 0, 0, 1, &UseBusy); /* make sure we don't use the busy flag with RW wired to GND */ if (UseBusy && !SIGNAL_RW) { error("%s: busy-flag checking is impossible with RW wired to GND!", Name); UseBusy = 0; } /* make sure the display supports busy-flag checking in 4-Bit-Mode */ /* at the moment this is inly possible with Martin Hejl's gpio driver, */ /* which allows to use 4 bits as input and 4 bits as output */ if (UseBusy && Bits == 4 && !(Capabilities & CAP_BUSY4BIT)) { error("%s: Model '%s' does not support busy-flag checking in 4 bit mode", Name, Models[Model].name); UseBusy = 0; } info("%s: %susing busy-flag checking", Name, UseBusy ? "" : "not "); /* The LCM-162 should really use BusyFlag checking */ if (!UseBusy && (Capabilities & CAP_LCM162)) { error("%s: Model '%s' should definitely use busy-flag checking!", Name, Models[Model].name); } return 0; } static void drv_HD_PP_stop(void) { /* clear all signals */ if (Bits == 8) { drv_generic_parport_control(SIGNAL_RS | SIGNAL_RW | SIGNAL_ENABLE | SIGNAL_ENABLE2 | SIGNAL_ENABLE3 | SIGNAL_ENABLE4 | SIGNAL_BACKLIGHT | SIGNAL_GPO, 0); } else { drv_generic_parport_data(0); } drv_generic_parport_close(); } #ifdef WITH_I2C /****************************************/ /*** i2c dependant functions ***/ /****************************************/ /* DISCLAIMER!!!! The following code is WORK IN PROGRESS, since it basicly 'works for us...' (C) 2005 Paul Kamphuis & Luis Correia We have removed all of the delays from this code, as the I2C bus is slow enough... (maximum possible speed is 100KHz only) */ static void drv_HD_I2C_nibble(unsigned char controller, unsigned char nibble) { unsigned char enable; unsigned char command; /* this is actually the first data byte on the PCF8574 */ unsigned char data_block[2]; /* enable signal: 'controller' is a bitmask */ /* bit n .. send to controller #n */ /* so we can send a byte to more controllers at the same time! */ enable = 0; if (controller & 0x01) enable |= SIGNAL_ENABLE; if (controller & 0x02) enable |= SIGNAL_ENABLE2; if (controller & 0x04) enable |= SIGNAL_ENABLE3; if (controller & 0x08) enable |= SIGNAL_ENABLE4; /* The new method Paul Kamphuis has concocted places the 3 needed writes to the I2C device as a single operation, using the 'i2c_smbus_write_block_data' function. These actual writes are performed by putting the nibble along with the 'EN' signal. command = first byte to be written, which contains the nibble (DB0..DB3) data [0] = second byte to be written, which contains the nibble plus the EN signal data [1] = third byte to be written, which contains the nibble (DB0..DB3) Then we write the block as a whole. The main advantage we see is that we do 2 less IOCTL's from our driver. */ command = nibble; data_block[0] = nibble | enable; data_block[1] = nibble; drv_generic_i2c_command(command, data_block, 2); } static void drv_HD_I2C_byte(const unsigned char controller, const unsigned char data) { /* send data with RS enabled */ drv_HD_I2C_nibble(controller, ((data >> 4) & 0x0f) | SIGNAL_RS); drv_HD_I2C_nibble(controller, (data & 0x0f) | SIGNAL_RS); } static void drv_HD_I2C_command(const unsigned char controller, const unsigned char cmd, __attribute__ ((unused)) const int delay) { /* send data with RS disabled */ drv_HD_I2C_nibble(controller, ((cmd >> 4) & 0x0f)); drv_HD_I2C_nibble(controller, ((cmd) & 0x0f)); } static void drv_HD_I2C_data(const unsigned char controller, const char *string, const int len, __attribute__ ((unused)) const int delay) { int l = len; /* sanity check */ if (len <= 0) return; while (l--) { drv_HD_I2C_byte(controller, *(string++)); } } static int drv_HD_I2C_load(const char *section) { if (cfg_number(section, "Bits", 8, 4, 8, &Bits) < 0) return -1; if (Bits != 4) { error("%s: bad %s.Bits '%d' from %s, should be '4'", Name, section, Bits, cfg_source()); return -1; } info("%s: using %d bit mode", Name, Bits); if (drv_generic_i2c_open(section, Name) != 0) { error("%s: could not initialize i2c attached device!", Name); return -1; } if ((SIGNAL_RS = drv_generic_i2c_wire("RS", "DB4")) == 0xff) return -1; if ((SIGNAL_RW = drv_generic_i2c_wire("RW", "DB5")) == 0xff) return -1; if ((SIGNAL_ENABLE = drv_generic_i2c_wire("ENABLE", "DB6")) == 0xff) return -1; if ((SIGNAL_ENABLE2 = drv_generic_i2c_wire("ENABLE2", "GND")) == 0xff) return -1; if ((SIGNAL_GPO = drv_generic_i2c_wire("GPO", "GND")) == 0xff) return -1; /* initialize display */ drv_HD_I2C_nibble(allControllers, 0x03); udelay(T_INIT1); /* 4 Bit mode, wait 4.1 ms */ drv_HD_I2C_nibble(allControllers, 0x03); udelay(T_INIT2); /* 4 Bit mode, wait 100 us */ drv_HD_I2C_nibble(allControllers, 0x03); udelay(T_INIT2); /* 4 Bit mode, wait 4.1 ms */ drv_HD_I2C_nibble(allControllers, 0x02); udelay(T_INIT2); /* 4 Bit mode, wait 100 us */ drv_HD_I2C_command(allControllers, 0x28, T_EXEC); /* 4 Bit mode, 1/16 duty cycle, 5x8 font */ info("%s: I2C initialization done", Name); return 0; } static void drv_HD_I2C_stop(void) { /* clear all signals */ drv_generic_i2c_data(0); /* close port */ drv_generic_i2c_close(); } /* END OF DISCLAIMER */ #endif /* WITH_I2C */ /****************************************/ /*** display dependant functions ***/ /****************************************/ static void drv_HD_clear(void) { drv_HD_command(allControllers, 0x01, T_CLEAR); /* clear *all* displays */ } static int drv_HD_goto(int row, int col) { int pos, controller; /* handle multiple controllers */ for (pos = 0, controller = 0; controller < numControllers; controller++) { pos += CROWS[controller]; if (row < pos) { currController = (1 << controller); break; } row -= CROWS[controller]; } /* column outside of current display's width */ if (col >= CCOLS[controller]) return -1; if (0) { debug("goto: [%d,%d] mask=%d, controller=%d, size:%dx%d", row, col, currController, controller, CROWS[controller], CCOLS[controller]); } /* 16x1 Displays are organized as 8x2 :-( */ if (CCOLS[controller] == 16 && CROWS[controller] == 1 && col > 7) { row++; col -= 8; } if (Capabilities & CAP_HD66712) { /* the HD66712 doesn't have a braindamadged RAM layout */ pos = row * 32 + col; } else { /* 16x4 Controllers use a slightly different layout */ if (CCOLS[controller] == 16 && CROWS[controller] == 4) { pos = (row % 2) * 64 + (row / 2) * 16 + col; } else { pos = (row % 2) * 64 + (row / 2) * 20 + col; } } drv_HD_command(currController, (0x80 | pos), T_EXEC); /* return columns left on current display */ return CCOLS[controller] - col; } static void drv_HD_write(const int row, const int col, const char *data, const int len) { int space = drv_HD_goto(row, col); if (space > 0) { drv_HD_data(currController, data, len > space ? space : len, T_EXEC); } } static void drv_HD_defchar(const int ascii, const unsigned char *matrix) { int i; char buffer[8]; for (i = 0; i < 8; i++) { buffer[i] = matrix[i] & 0x1f; } /* define chars on *all* controllers! */ drv_HD_command(allControllers, 0x40 | 8 * ascii, T_EXEC); drv_HD_data(allControllers, buffer, 8, T_WRCG); } static int drv_HD_backlight(int backlight) { if (!(Capabilities & CAP_BACKLIGHT)) return -1; if (backlight < 0) backlight = 0; if (backlight > 1) backlight = 1; drv_generic_parport_control(SIGNAL_BACKLIGHT, backlight ? SIGNAL_BACKLIGHT : 0); return backlight; } static int drv_HD_brightness(int brightness) { char cmd; if (!(Capabilities & CAP_BRIGHTNESS)) return -1; if (brightness < 0) brightness = 0; if (brightness > 3) brightness = 3; cmd = '0' + brightness; drv_HD_command(allControllers, 0x38, T_EXEC); /* enable function */ drv_HD_data(allControllers, &cmd, 1, T_WRCG); /* set brightness */ return brightness; } /* Fixme: GPO's */ #if 0 static void drv_HD_setGPO(const int bits) { if (Lcd.gpos > 0) { /* put data on DB1..DB8 */ drv_generic_parport_data(bits); /* 74HCT573 set-up time */ ndelay(20); /* send data */ /* 74HCT573 enable pulse width = 24ns */ drv_generic_parport_toggle(SIGNAL_GPO, 1, 230); } } #endif static void drv_HD_LCM162_timer(void __attribute__ ((unused)) * notused) { static unsigned char data = 0x00; /* Bit 3+5 : key number */ /* Bit 6 : key press/release */ unsigned char mask3 = 1 << 3; unsigned char mask5 = 1 << 5; unsigned char mask6 = 1 << 6; unsigned char mask = mask3 | mask5 | mask6; int keynum; int updown; unsigned char temp; temp = drv_generic_parport_status() & mask; if (data != temp) { data = temp; keynum = (data & mask3 ? 1 : 0) + (data & mask5 ? 2 : 0); updown = (data & mask6 ? 1 : 0); debug("key %d press %d", keynum, updown); } } static int drv_HD_start(const char *section, const int quiet) { char *model, *size, *bus; int rows = -1, cols = -1, gpos = -1, i; int size_defined = 0; int size_missing = 0; model = cfg_get(section, "Model", "generic"); if (model != NULL && *model != '\0') { int i; for (i = 0; Models[i].type != 0xff; i++) { if (strcasecmp(Models[i].name, model) == 0) break; } if (Models[i].type == 0xff) { error("%s: %s.Model '%s' is unknown from %s", Name, section, model, cfg_source()); return -1; } Model = i; Capabilities = Models[Model].capabilities; info("%s: using model '%s'", Name, Models[Model].name); } else { error("%s: empty '%s.Model' entry from %s", Name, section, cfg_source()); free(model); return -1; } free(model); bus = cfg_get(section, "Bus", "parport"); if (bus == NULL && *bus == '\0') { error("%s: empty '%s.Bus' entry from %s", Name, section, cfg_source()); free(bus); return -1; } if (strcasecmp(bus, "parport") == 0) { info("%s: using parallel port", Name); Bus = BUS_PP; drv_HD_load = drv_HD_PP_load; drv_HD_command = drv_HD_PP_command; drv_HD_data = drv_HD_PP_data; drv_HD_stop = drv_HD_PP_stop; } else if (strcasecmp(bus, "i2c") == 0) { #ifdef WITH_I2C info("%s: using I2C bus", Name); Bus = BUS_I2C; drv_HD_load = drv_HD_I2C_load; drv_HD_command = drv_HD_I2C_command; drv_HD_data = drv_HD_I2C_data; drv_HD_stop = drv_HD_I2C_stop; #else error("%s: %s.Bus '%s' from %s not available:", Name, section, bus, cfg_source()); error("%s: lcd4linux was compiled without i2c support!", Name); free(bus); return -1; #endif } else { error("%s: bad %s.Bus '%s' from %s, should be 'parport' or 'i2c'", Name, section, bus, cfg_source()); free(bus); return -1; } /* sanity check: Model can use bus */ if (!(Capabilities & Bus)) { error("%s: Model '%s' cannot be used on the %s bus!", Name, Models[Model].name, bus); free(bus); return -1; } free(bus); if (cfg_number(section, "Controllers", 1, 1, 4, (int *) &numControllers) < 0) return -1; info("%s: using %d Controller(s)", Name, numControllers); /* current Controller */ currController = 1; /* Bitmask for *all* Controllers */ allControllers = (1 << numControllers) - 1; DCOLS = 0; DROWS = 0; for (i = 0; i < numControllers; i++) { char key[6]; qprintf(key, sizeof(key), "Size%d", i + 1); size = cfg_get(section, key, NULL); if (size == NULL || *size == '\0') { size_missing++; free(size); continue; } if (sscanf(size, "%dx%d", &cols, &rows) != 2 || rows < 1 || cols < 1) { error("%s: bad %s.%s '%s' from %s", Name, section, key, size, cfg_source()); free(size); return -1; } free(size); CCOLS[i] = cols; CROWS[i] = rows; size_defined++; info("%s: Controller %d: %dx%d", Name, i + 1, cols, rows); /* grow the size */ if (cols > DCOLS) DCOLS = cols; DROWS += rows; } if (size_defined && size_missing) { error("%s: bad %s.Size* definition in %s:", Name, section, cfg_source()); error("%s: either you specify the size for *all* controllers or for none.", Name); return -1; } size = cfg_get(section, "Size", NULL); if (size != NULL && *size != '\0') { if (sscanf(size, "%dx%d", &cols, &rows) != 2 || rows < 1 || cols < 1) { error("%s: bad %s.Size '%s' from %s", Name, section, size, cfg_source()); free(size); return -1; } if (DCOLS == 0 && DROWS == 0) { for (i = 0; i < numControllers; i++) { CCOLS[i] = cols; CROWS[i] = rows / numControllers; DCOLS = CCOLS[i]; DROWS += CROWS[i]; } } if (rows != DROWS || cols != DCOLS) { error("%s: bad %s.Size definition in %s:", Name, section, cfg_source()); error("%s: Size %dx%d should be %dx%d", Name, cols, rows, DCOLS, DROWS); return -1; } } free(size); if (cfg_number(section, "GPOs", 0, 0, 8, &gpos) < 0) return -1; if (gpos > 0 && !(Capabilities & CAP_GPO)) { error("%s: Model '%s' does not support GPO's!", Name, Models[Model].name); gpos = 0; } GPOS = gpos; if (gpos > 0) { info("%s: using %d GPO's", Name, GPOS); } if (drv_HD_load(section) < 0) { error("%s: start display failed!", Name); return -1; } drv_HD_command(allControllers, 0x08, T_EXEC); /* Controller off, cursor off, blink off */ drv_HD_command(allControllers, 0x0c, T_CLEAR); /* Display on, cursor off, blink off, wait 1.64 ms */ drv_HD_command(allControllers, 0x06, T_EXEC); /* curser moves to right, no shift */ if ((Capabilities & CAP_HD66712) && DROWS > 2) { drv_HD_command(allControllers, Bits == 8 ? 0x3c : 0x2c, T_EXEC); /* set extended register enable bit */ drv_HD_command(allControllers, 0x09, T_EXEC); /* set 4-line mode */ drv_HD_command(allControllers, Bits == 8 ? 0x38 : 0x28, T_EXEC); /* clear extended register enable bit */ } drv_HD_clear(); /* clear *all* displays */ drv_HD_command(allControllers, 0x03, T_CLEAR); /* return home */ /* maybe set backlight */ if (Capabilities & CAP_BACKLIGHT) { int backlight; if (cfg_number(section, "Backlight", 0, 0, 1, &backlight) > 0) { info("%s: backlight %s", Name, backlight ? "enabled" : "disabled"); drv_HD_backlight(backlight); } } /* maybe set brightness */ if (Capabilities & CAP_BRIGHTNESS) { int brightness; if (cfg_number(section, "Brightness", 0, 0, 3, &brightness) > 0) { info("%s: brightness level %d", Name, brightness); drv_HD_brightness(brightness); } } /* install keypad polling timer for LCM-162 */ if (Capabilities & CAP_LCM162) { timer_add(drv_HD_LCM162_timer, NULL, 10, 0); } if (!quiet) { char buffer[40]; qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS); if (drv_generic_text_greet(buffer, NULL)) { sleep(3); drv_HD_clear(); } } return 0; } /****************************************/ /*** plugins ***/ /****************************************/ static void plugin_backlight(RESULT * result, RESULT * arg1) { double backlight; backlight = drv_HD_backlight(R2N(arg1)); SetResult(&result, R_NUMBER, &backlight); } static void plugin_brightness(RESULT * result, RESULT * arg1) { double brightness; brightness = drv_HD_brightness(R2N(arg1)); SetResult(&result, R_NUMBER, &brightness); } /****************************************/ /*** widget callbacks ***/ /****************************************/ /* using drv_generic_text_draw(W) */ /* using drv_generic_text_icon_draw(W) */ /* using drv_generic_text_bar_draw(W) */ /****************************************/ /*** exported functions ***/ /****************************************/ /* list models */ int drv_HD_list(void) { int i; for (i = 0; Models[i].type != 0xff; i++) { printf("%s ", Models[i].name); } return 0; } /* initialize driver & display */ int drv_HD_init(const char *section, const int quiet) { WIDGET_CLASS wc; int asc255bug; int ret; /* display preferences */ XRES = 5; /* pixel width of one char */ YRES = 8; /* pixel height of one char */ CHARS = 8; /* number of user-defineable characters */ CHAR0 = 0; /* ASCII of first user-defineable char */ GOTO_COST = 1; /* number of bytes a goto command requires */ /* real worker functions */ drv_generic_text_real_write = drv_HD_write; drv_generic_text_real_defchar = drv_HD_defchar; /* start display */ if ((ret = drv_HD_start(section, quiet)) != 0) return ret; /* initialize generic text driver */ if ((ret = drv_generic_text_init(section, Name)) != 0) return ret; /* initialize generic icon driver */ if ((ret = drv_generic_text_icon_init()) != 0) return ret; /* initialize generic bar driver */ if ((ret = drv_generic_text_bar_init(0)) != 0) return ret; /* add fixed chars to the bar driver */ /* most displays have a full block on ascii 255, but some have kind of */ /* an 'inverted P'. If you specify 'asc255bug 1 in the config, this */ /* char will not be used, but rendered by the bar driver */ cfg_number(section, "asc255bug", 0, 0, 1, &asc255bug); drv_generic_text_bar_add_segment(0, 0, 255, 32); /* ASCII 32 = blank */ if (!asc255bug) drv_generic_text_bar_add_segment(255, 255, 255, 255); /* ASCII 255 = block */ /* register text widget */ wc = Widget_Text; wc.draw = drv_generic_text_draw; widget_register(&wc); /* register icon widget */ wc = Widget_Icon; wc.draw = drv_generic_text_icon_draw; widget_register(&wc); /* register bar widget */ wc = Widget_Bar; wc.draw = drv_generic_text_bar_draw; widget_register(&wc); /* register plugins */ if (Capabilities & CAP_BACKLIGHT) { AddFunction("LCD::backlight", 1, plugin_backlight); } if (Capabilities & CAP_BRIGHTNESS) { AddFunction("LCD::brightness", 1, plugin_brightness); } return 0; } /* close driver & display */ int drv_HD_quit(const int quiet) { info("%s: shutting down.", Name); drv_generic_text_quit(); /* clear display */ drv_HD_clear(); /* say goodbye... */ if (!quiet) { drv_generic_text_greet("goodbye!", NULL); } drv_HD_stop(); return (0); } DRIVER drv_HD44780 = { name:Name, list:drv_HD_list, init:drv_HD_init, quit:drv_HD_quit, };
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 03:00:23 +0000