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40#include <linux/module.h>
41#include <linux/kernel.h>
42#include <linux/errno.h>
43#include <linux/poll.h>
44#include <linux/spinlock.h>
45
46#include "sisusb.h"
47#include "sisusb_init.h"
48#include "sisusb_tables.h"
49
50
51
52
53
54static void SiSUSB_InitPtr(struct SiS_Private *SiS_Pr)
55{
56 SiS_Pr->SiS_ModeResInfo = SiSUSB_ModeResInfo;
57 SiS_Pr->SiS_StandTable = SiSUSB_StandTable;
58
59 SiS_Pr->SiS_SModeIDTable = SiSUSB_SModeIDTable;
60 SiS_Pr->SiS_EModeIDTable = SiSUSB_EModeIDTable;
61 SiS_Pr->SiS_RefIndex = SiSUSB_RefIndex;
62 SiS_Pr->SiS_CRT1Table = SiSUSB_CRT1Table;
63
64 SiS_Pr->SiS_VCLKData = SiSUSB_VCLKData;
65}
66
67
68
69
70
71static void
72SiS_SetReg(struct SiS_Private *SiS_Pr, unsigned long port,
73 unsigned short index, unsigned short data)
74{
75 sisusb_setidxreg(SiS_Pr->sisusb, port, index, data);
76}
77
78static void
79SiS_SetRegByte(struct SiS_Private *SiS_Pr, unsigned long port,
80 unsigned short data)
81{
82 sisusb_setreg(SiS_Pr->sisusb, port, data);
83}
84
85static unsigned char
86SiS_GetReg(struct SiS_Private *SiS_Pr, unsigned long port, unsigned short index)
87{
88 u8 data;
89
90 sisusb_getidxreg(SiS_Pr->sisusb, port, index, &data);
91
92 return data;
93}
94
95static unsigned char
96SiS_GetRegByte(struct SiS_Private *SiS_Pr, unsigned long port)
97{
98 u8 data;
99
100 sisusb_getreg(SiS_Pr->sisusb, port, &data);
101
102 return data;
103}
104
105static void
106SiS_SetRegANDOR(struct SiS_Private *SiS_Pr, unsigned long port,
107 unsigned short index, unsigned short DataAND,
108 unsigned short DataOR)
109{
110 sisusb_setidxregandor(SiS_Pr->sisusb, port, index, DataAND, DataOR);
111}
112
113static void
114SiS_SetRegAND(struct SiS_Private *SiS_Pr, unsigned long port,
115 unsigned short index, unsigned short DataAND)
116{
117 sisusb_setidxregand(SiS_Pr->sisusb, port, index, DataAND);
118}
119
120static void
121SiS_SetRegOR(struct SiS_Private *SiS_Pr, unsigned long port,
122 unsigned short index, unsigned short DataOR)
123{
124 sisusb_setidxregor(SiS_Pr->sisusb, port, index, DataOR);
125}
126
127
128
129
130
131static void SiS_DisplayOn(struct SiS_Private *SiS_Pr)
132{
133 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, 0xDF);
134}
135
136
137
138
139
140static void SiSUSBRegInit(struct SiS_Private *SiS_Pr, unsigned long BaseAddr)
141{
142 SiS_Pr->SiS_P3c4 = BaseAddr + 0x14;
143 SiS_Pr->SiS_P3d4 = BaseAddr + 0x24;
144 SiS_Pr->SiS_P3c0 = BaseAddr + 0x10;
145 SiS_Pr->SiS_P3ce = BaseAddr + 0x1e;
146 SiS_Pr->SiS_P3c2 = BaseAddr + 0x12;
147 SiS_Pr->SiS_P3ca = BaseAddr + 0x1a;
148 SiS_Pr->SiS_P3c6 = BaseAddr + 0x16;
149 SiS_Pr->SiS_P3c7 = BaseAddr + 0x17;
150 SiS_Pr->SiS_P3c8 = BaseAddr + 0x18;
151 SiS_Pr->SiS_P3c9 = BaseAddr + 0x19;
152 SiS_Pr->SiS_P3cb = BaseAddr + 0x1b;
153 SiS_Pr->SiS_P3cc = BaseAddr + 0x1c;
154 SiS_Pr->SiS_P3cd = BaseAddr + 0x1d;
155 SiS_Pr->SiS_P3da = BaseAddr + 0x2a;
156 SiS_Pr->SiS_Part1Port = BaseAddr + SIS_CRT2_PORT_04;
157}
158
159
160
161
162
163static void SiS_GetSysFlags(struct SiS_Private *SiS_Pr)
164{
165 SiS_Pr->SiS_MyCR63 = 0x63;
166}
167
168
169
170
171
172static void SiSInitPCIetc(struct SiS_Private *SiS_Pr)
173{
174 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x20, 0xa1);
175
176
177
178
179
180
181 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1E, 0xDA);
182}
183
184
185
186
187
188static void SiS_SetSegRegLower(struct SiS_Private *SiS_Pr, unsigned short value)
189{
190 unsigned short temp;
191
192 value &= 0x00ff;
193 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb) & 0xf0;
194 temp |= (value >> 4);
195 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb, temp);
196 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd) & 0xf0;
197 temp |= (value & 0x0f);
198 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd, temp);
199}
200
201static void SiS_SetSegRegUpper(struct SiS_Private *SiS_Pr, unsigned short value)
202{
203 unsigned short temp;
204
205 value &= 0x00ff;
206 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb) & 0x0f;
207 temp |= (value & 0xf0);
208 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb, temp);
209 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd) & 0x0f;
210 temp |= (value << 4);
211 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd, temp);
212}
213
214static void SiS_SetSegmentReg(struct SiS_Private *SiS_Pr, unsigned short value)
215{
216 SiS_SetSegRegLower(SiS_Pr, value);
217 SiS_SetSegRegUpper(SiS_Pr, value);
218}
219
220static void SiS_ResetSegmentReg(struct SiS_Private *SiS_Pr)
221{
222 SiS_SetSegmentReg(SiS_Pr, 0);
223}
224
225static void
226SiS_SetSegmentRegOver(struct SiS_Private *SiS_Pr, unsigned short value)
227{
228 unsigned short temp = value >> 8;
229
230 temp &= 0x07;
231 temp |= (temp << 4);
232 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1d, temp);
233 SiS_SetSegmentReg(SiS_Pr, value);
234}
235
236static void SiS_ResetSegmentRegOver(struct SiS_Private *SiS_Pr)
237{
238 SiS_SetSegmentRegOver(SiS_Pr, 0);
239}
240
241static void SiS_ResetSegmentRegisters(struct SiS_Private *SiS_Pr)
242{
243 SiS_ResetSegmentReg(SiS_Pr);
244 SiS_ResetSegmentRegOver(SiS_Pr);
245}
246
247
248
249
250
251static int
252SiS_SearchModeID(struct SiS_Private *SiS_Pr, unsigned short *ModeNo,
253 unsigned short *ModeIdIndex)
254{
255 if ((*ModeNo) <= 0x13) {
256
257 if ((*ModeNo) != 0x03)
258 return 0;
259
260 (*ModeIdIndex) = 0;
261
262 } else {
263
264 for (*ModeIdIndex = 0;; (*ModeIdIndex)++) {
265
266 if (SiS_Pr->SiS_EModeIDTable[*ModeIdIndex].Ext_ModeID ==
267 (*ModeNo))
268 break;
269
270 if (SiS_Pr->SiS_EModeIDTable[*ModeIdIndex].Ext_ModeID ==
271 0xFF)
272 return 0;
273 }
274
275 }
276
277 return 1;
278}
279
280
281
282
283
284static void SiS_HandleCRT1(struct SiS_Private *SiS_Pr)
285{
286
287 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4, SiS_Pr->SiS_MyCR63, 0xbf);
288}
289
290
291
292
293
294static unsigned short
295SiS_GetColorDepth(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
296 unsigned short ModeIdIndex)
297{
298 static const unsigned short ColorDepth[6] = { 1, 2, 4, 4, 6, 8 };
299 unsigned short modeflag;
300 short index;
301
302 if (ModeNo <= 0x13) {
303 modeflag = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ModeFlag;
304 } else {
305 modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
306 }
307
308 index = (modeflag & ModeTypeMask) - ModeEGA;
309 if (index < 0)
310 index = 0;
311 return ColorDepth[index];
312}
313
314
315
316
317
318static unsigned short
319SiS_GetOffset(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
320 unsigned short ModeIdIndex, unsigned short rrti)
321{
322 unsigned short xres, temp, colordepth, infoflag;
323
324 infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
325 xres = SiS_Pr->SiS_RefIndex[rrti].XRes;
326
327 colordepth = SiS_GetColorDepth(SiS_Pr, ModeNo, ModeIdIndex);
328
329 temp = xres / 16;
330
331 if (infoflag & InterlaceMode)
332 temp <<= 1;
333
334 temp *= colordepth;
335
336 if (xres % 16)
337 temp += (colordepth >> 1);
338
339 return temp;
340}
341
342
343
344
345
346static void
347SiS_SetSeqRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
348{
349 unsigned char SRdata;
350 int i;
351
352 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x00, 0x03);
353
354 SRdata = SiS_Pr->SiS_StandTable[StandTableIndex].SR[0] | 0x20;
355 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, SRdata);
356
357 for (i = 2; i <= 4; i++) {
358 SRdata = SiS_Pr->SiS_StandTable[StandTableIndex].SR[i - 1];
359 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, i, SRdata);
360 }
361}
362
363
364
365
366
367static void
368SiS_SetMiscRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
369{
370 unsigned char Miscdata = SiS_Pr->SiS_StandTable[StandTableIndex].MISC;
371
372 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c2, Miscdata);
373}
374
375
376
377
378
379static void
380SiS_SetCRTCRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
381{
382 unsigned char CRTCdata;
383 unsigned short i;
384
385 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4, 0x11, 0x7f);
386
387 for (i = 0; i <= 0x18; i++) {
388 CRTCdata = SiS_Pr->SiS_StandTable[StandTableIndex].CRTC[i];
389 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, i, CRTCdata);
390 }
391}
392
393
394
395
396
397static void
398SiS_SetATTRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
399{
400 unsigned char ARdata;
401 unsigned short i;
402
403 for (i = 0; i <= 0x13; i++) {
404 ARdata = SiS_Pr->SiS_StandTable[StandTableIndex].ATTR[i];
405 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
406 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, i);
407 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, ARdata);
408 }
409 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
410 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x14);
411 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x00);
412
413 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
414 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x20);
415 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
416}
417
418
419
420
421
422static void
423SiS_SetGRCRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
424{
425 unsigned char GRdata;
426 unsigned short i;
427
428 for (i = 0; i <= 0x08; i++) {
429 GRdata = SiS_Pr->SiS_StandTable[StandTableIndex].GRC[i];
430 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3ce, i, GRdata);
431 }
432
433 if (SiS_Pr->SiS_ModeType > ModeVGA) {
434
435 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3ce, 0x05, 0xBF);
436 }
437}
438
439
440
441
442
443static void SiS_ClearExt1Regs(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
444{
445 int i;
446
447 for (i = 0x0A; i <= 0x0E; i++) {
448 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, i, 0x00);
449 }
450
451 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x37, 0xFE);
452}
453
454
455
456
457
458static unsigned short
459SiS_GetRatePtr(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
460 unsigned short ModeIdIndex)
461{
462 unsigned short rrti, i, index, temp;
463
464 if (ModeNo <= 0x13)
465 return 0xFFFF;
466
467 index = SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x33) & 0x0F;
468 if (index > 0)
469 index--;
470
471 rrti = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].REFindex;
472 ModeNo = SiS_Pr->SiS_RefIndex[rrti].ModeID;
473
474 i = 0;
475 do {
476 if (SiS_Pr->SiS_RefIndex[rrti + i].ModeID != ModeNo)
477 break;
478
479 temp =
480 SiS_Pr->SiS_RefIndex[rrti + i].Ext_InfoFlag & ModeTypeMask;
481 if (temp < SiS_Pr->SiS_ModeType)
482 break;
483
484 i++;
485 index--;
486 } while (index != 0xFFFF);
487
488 i--;
489
490 return (rrti + i);
491}
492
493
494
495
496
497static void SiS_SetCRT1Sync(struct SiS_Private *SiS_Pr, unsigned short rrti)
498{
499 unsigned short sync = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag >> 8;
500 sync &= 0xC0;
501 sync |= 0x2f;
502 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c2, sync);
503}
504
505
506
507
508
509static void
510SiS_SetCRT1CRTC(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
511 unsigned short ModeIdIndex, unsigned short rrti)
512{
513 unsigned char index;
514 unsigned short temp, i, j, modeflag;
515
516 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4, 0x11, 0x7f);
517
518 modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
519
520 index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRT1CRTC;
521
522 for (i = 0, j = 0; i <= 7; i++, j++) {
523 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
524 SiS_Pr->SiS_CRT1Table[index].CR[i]);
525 }
526 for (j = 0x10; i <= 10; i++, j++) {
527 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
528 SiS_Pr->SiS_CRT1Table[index].CR[i]);
529 }
530 for (j = 0x15; i <= 12; i++, j++) {
531 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
532 SiS_Pr->SiS_CRT1Table[index].CR[i]);
533 }
534 for (j = 0x0A; i <= 15; i++, j++) {
535 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, j,
536 SiS_Pr->SiS_CRT1Table[index].CR[i]);
537 }
538
539 temp = SiS_Pr->SiS_CRT1Table[index].CR[16] & 0xE0;
540 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0E, temp);
541
542 temp = ((SiS_Pr->SiS_CRT1Table[index].CR[16]) & 0x01) << 5;
543 if (modeflag & DoubleScanMode)
544 temp |= 0x80;
545 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3d4, 0x09, 0x5F, temp);
546
547 if (SiS_Pr->SiS_ModeType > ModeVGA)
548 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x14, 0x4F);
549}
550
551
552
553
554
555
556
557static void
558SiS_SetCRT1Offset(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
559 unsigned short ModeIdIndex, unsigned short rrti)
560{
561 unsigned short du = SiS_GetOffset(SiS_Pr, ModeNo, ModeIdIndex, rrti);
562 unsigned short infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
563 unsigned short temp;
564
565 temp = (du >> 8) & 0x0f;
566 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0E, 0xF0, temp);
567
568 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x13, (du & 0xFF));
569
570 if (infoflag & InterlaceMode)
571 du >>= 1;
572
573 du <<= 5;
574 temp = (du >> 8) & 0xff;
575 if (du & 0xff)
576 temp++;
577 temp++;
578 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x10, temp);
579}
580
581
582
583
584
585static void
586SiS_SetCRT1VCLK(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
587 unsigned short rrti)
588{
589 unsigned short index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRTVCLK;
590 unsigned short clka = SiS_Pr->SiS_VCLKData[index].SR2B;
591 unsigned short clkb = SiS_Pr->SiS_VCLKData[index].SR2C;
592
593 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x31, 0xCF);
594
595 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x2B, clka);
596 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x2C, clkb);
597 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x2D, 0x01);
598}
599
600
601
602
603
604static void
605SiS_SetCRT1FIFO_310(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
606 unsigned short mi)
607{
608 unsigned short modeflag = SiS_Pr->SiS_EModeIDTable[mi].Ext_ModeFlag;
609
610
611 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x3D, 0xFE);
612
613 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x08, 0xAE);
614 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x09, 0xF0);
615
616 if (ModeNo <= 0x13)
617 return;
618
619 if ((!(modeflag & DoubleScanMode)) || (!(modeflag & HalfDCLK))) {
620 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x08, 0x34);
621 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x3D, 0x01);
622 }
623}
624
625
626
627
628
629static void
630SiS_SetVCLKState(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
631 unsigned short rrti)
632{
633 unsigned short data = 0, VCLK = 0, index = 0;
634
635 if (ModeNo > 0x13) {
636 index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRTVCLK;
637 VCLK = SiS_Pr->SiS_VCLKData[index].CLOCK;
638 }
639
640 if (VCLK >= 166)
641 data |= 0x0c;
642 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x32, 0xf3, data);
643
644 if (VCLK >= 166)
645 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1f, 0xe7);
646
647
648 data = 0x03;
649 if (VCLK >= 260)
650 data = 0x00;
651 else if (VCLK >= 160)
652 data = 0x01;
653 else if (VCLK >= 135)
654 data = 0x02;
655
656 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x07, 0xF8, data);
657}
658
659static void
660SiS_SetCRT1ModeRegs(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
661 unsigned short ModeIdIndex, unsigned short rrti)
662{
663 unsigned short data, infoflag = 0, modeflag;
664
665 if (ModeNo <= 0x13)
666 modeflag = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ModeFlag;
667 else {
668 modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
669 infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
670 }
671
672
673 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1F, 0x3F);
674
675 data = 0;
676 if (ModeNo > 0x13) {
677 if (SiS_Pr->SiS_ModeType > ModeEGA) {
678 data |= 0x02;
679 data |= ((SiS_Pr->SiS_ModeType - ModeVGA) << 2);
680 }
681 if (infoflag & InterlaceMode)
682 data |= 0x20;
683 }
684 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x06, 0xC0, data);
685
686 data = 0;
687 if (infoflag & InterlaceMode) {
688
689 unsigned short hrs =
690 (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x04) |
691 ((SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0b) & 0xc0) << 2))
692 - 3;
693 unsigned short hto =
694 (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x00) |
695 ((SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0b) & 0x03) << 8))
696 + 5;
697 data = hrs - (hto >> 1) + 3;
698 }
699 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x19, (data & 0xFF));
700 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3d4, 0x1a, 0xFC, (data >> 8));
701
702 if (modeflag & HalfDCLK)
703 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, 0x08);
704
705 data = 0;
706 if (modeflag & LineCompareOff)
707 data = 0x08;
708 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0F, 0xB7, data);
709
710 if ((SiS_Pr->SiS_ModeType == ModeEGA) && (ModeNo > 0x13))
711 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0F, 0x40);
712
713 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x31, 0xfb);
714
715 data = 0x60;
716 if (SiS_Pr->SiS_ModeType != ModeText) {
717 data ^= 0x60;
718 if (SiS_Pr->SiS_ModeType != ModeEGA)
719 data ^= 0xA0;
720 }
721 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x21, 0x1F, data);
722
723 SiS_SetVCLKState(SiS_Pr, ModeNo, rrti);
724
725 if (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x31) & 0x40)
726 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x52, 0x2c);
727 else
728 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x52, 0x6c);
729}
730
731
732
733
734
735static void
736SiS_WriteDAC(struct SiS_Private *SiS_Pr, unsigned long DACData,
737 unsigned short shiftflag, unsigned short dl, unsigned short ah,
738 unsigned short al, unsigned short dh)
739{
740 unsigned short d1, d2, d3;
741
742 switch (dl) {
743 case 0:
744 d1 = dh;
745 d2 = ah;
746 d3 = al;
747 break;
748 case 1:
749 d1 = ah;
750 d2 = al;
751 d3 = dh;
752 break;
753 default:
754 d1 = al;
755 d2 = dh;
756 d3 = ah;
757 }
758 SiS_SetRegByte(SiS_Pr, DACData, (d1 << shiftflag));
759 SiS_SetRegByte(SiS_Pr, DACData, (d2 << shiftflag));
760 SiS_SetRegByte(SiS_Pr, DACData, (d3 << shiftflag));
761}
762
763static void
764SiS_LoadDAC(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
765 unsigned short mi)
766{
767 unsigned short data, data2, time, i, j, k, m, n, o;
768 unsigned short si, di, bx, sf;
769 unsigned long DACAddr, DACData;
770 const unsigned char *table = NULL;
771
772 if (ModeNo < 0x13)
773 data = SiS_Pr->SiS_SModeIDTable[mi].St_ModeFlag;
774 else
775 data = SiS_Pr->SiS_EModeIDTable[mi].Ext_ModeFlag;
776
777 data &= DACInfoFlag;
778
779 j = time = 64;
780 if (data == 0x00)
781 table = SiS_MDA_DAC;
782 else if (data == 0x08)
783 table = SiS_CGA_DAC;
784 else if (data == 0x10)
785 table = SiS_EGA_DAC;
786 else {
787 j = 16;
788 time = 256;
789 table = SiS_VGA_DAC;
790 }
791
792 DACAddr = SiS_Pr->SiS_P3c8;
793 DACData = SiS_Pr->SiS_P3c9;
794 sf = 0;
795 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c6, 0xFF);
796
797 SiS_SetRegByte(SiS_Pr, DACAddr, 0x00);
798
799 for (i = 0; i < j; i++) {
800 data = table[i];
801 for (k = 0; k < 3; k++) {
802 data2 = 0;
803 if (data & 0x01)
804 data2 += 0x2A;
805 if (data & 0x02)
806 data2 += 0x15;
807 SiS_SetRegByte(SiS_Pr, DACData, (data2 << sf));
808 data >>= 2;
809 }
810 }
811
812 if (time == 256) {
813 for (i = 16; i < 32; i++) {
814 data = table[i] << sf;
815 for (k = 0; k < 3; k++)
816 SiS_SetRegByte(SiS_Pr, DACData, data);
817 }
818 si = 32;
819 for (m = 0; m < 9; m++) {
820 di = si;
821 bx = si + 4;
822 for (n = 0; n < 3; n++) {
823 for (o = 0; o < 5; o++) {
824 SiS_WriteDAC(SiS_Pr, DACData, sf, n,
825 table[di], table[bx],
826 table[si]);
827 si++;
828 }
829 si -= 2;
830 for (o = 0; o < 3; o++) {
831 SiS_WriteDAC(SiS_Pr, DACData, sf, n,
832 table[di], table[si],
833 table[bx]);
834 si--;
835 }
836 }
837 si += 5;
838 }
839 }
840}
841
842
843
844
845
846static void
847SiS_SetCRT1Group(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
848 unsigned short ModeIdIndex)
849{
850 unsigned short StandTableIndex, rrti;
851
852 SiS_Pr->SiS_CRT1Mode = ModeNo;
853
854 if (ModeNo <= 0x13)
855 StandTableIndex = 0;
856 else
857 StandTableIndex = 1;
858
859 SiS_ResetSegmentRegisters(SiS_Pr);
860 SiS_SetSeqRegs(SiS_Pr, StandTableIndex);
861 SiS_SetMiscRegs(SiS_Pr, StandTableIndex);
862 SiS_SetCRTCRegs(SiS_Pr, StandTableIndex);
863 SiS_SetATTRegs(SiS_Pr, StandTableIndex);
864 SiS_SetGRCRegs(SiS_Pr, StandTableIndex);
865 SiS_ClearExt1Regs(SiS_Pr, ModeNo);
866
867 rrti = SiS_GetRatePtr(SiS_Pr, ModeNo, ModeIdIndex);
868
869 if (rrti != 0xFFFF) {
870 SiS_SetCRT1Sync(SiS_Pr, rrti);
871 SiS_SetCRT1CRTC(SiS_Pr, ModeNo, ModeIdIndex, rrti);
872 SiS_SetCRT1Offset(SiS_Pr, ModeNo, ModeIdIndex, rrti);
873 SiS_SetCRT1VCLK(SiS_Pr, ModeNo, rrti);
874 }
875
876 SiS_SetCRT1FIFO_310(SiS_Pr, ModeNo, ModeIdIndex);
877
878 SiS_SetCRT1ModeRegs(SiS_Pr, ModeNo, ModeIdIndex, rrti);
879
880 SiS_LoadDAC(SiS_Pr, ModeNo, ModeIdIndex);
881
882 SiS_DisplayOn(SiS_Pr);
883}
884
885
886
887
888
889int SiSUSBSetMode(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
890{
891 unsigned short ModeIdIndex;
892 unsigned long BaseAddr = SiS_Pr->IOAddress;
893
894 SiSUSB_InitPtr(SiS_Pr);
895 SiSUSBRegInit(SiS_Pr, BaseAddr);
896 SiS_GetSysFlags(SiS_Pr);
897
898 if (!(SiS_SearchModeID(SiS_Pr, &ModeNo, &ModeIdIndex)))
899 return 0;
900
901 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x05, 0x86);
902
903 SiSInitPCIetc(SiS_Pr);
904
905 ModeNo &= 0x7f;
906
907 SiS_Pr->SiS_ModeType =
908 SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag & ModeTypeMask;
909
910 SiS_Pr->SiS_SetFlag = LowModeTests;
911
912
913 SiS_SetCRT1Group(SiS_Pr, ModeNo, ModeIdIndex);
914
915 SiS_HandleCRT1(SiS_Pr);
916
917 SiS_DisplayOn(SiS_Pr);
918 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c6, 0xFF);
919
920
921 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x34, ModeNo);
922
923 return 1;
924}
925
926int SiSUSBSetVESAMode(struct SiS_Private *SiS_Pr, unsigned short VModeNo)
927{
928 unsigned short ModeNo = 0;
929 int i;
930
931 SiSUSB_InitPtr(SiS_Pr);
932
933 if (VModeNo == 0x03) {
934
935 ModeNo = 0x03;
936
937 } else {
938
939 i = 0;
940 do {
941
942 if (SiS_Pr->SiS_EModeIDTable[i].Ext_VESAID == VModeNo) {
943 ModeNo = SiS_Pr->SiS_EModeIDTable[i].Ext_ModeID;
944 break;
945 }
946
947 } while (SiS_Pr->SiS_EModeIDTable[i++].Ext_ModeID != 0xff);
948
949 }
950
951 if (!ModeNo)
952 return 0;
953
954 return SiSUSBSetMode(SiS_Pr, ModeNo);
955}
956