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Linux 2.6.17.7
[linux/fpc-iii.git] / drivers / usb / misc / sisusbvga / sisusb_init.c
blob044fa4482f9f471764d99feaa43f9e8af01dfcda
1 /*
2 * sisusb - usb kernel driver for SiS315(E) based USB2VGA dongles
3 *
4 * Display mode initializing code
5 *
6 * Copyright (C) 2001-2005 by Thomas Winischhofer, Vienna, Austria
7 *
8 * If distributed as part of the Linux kernel, this code is licensed under the
9 * terms of the GPL v2.
10 *
11 * Otherwise, the following license terms apply:
12 *
13 * * Redistribution and use in source and binary forms, with or without
14 * * modification, are permitted provided that the following conditions
15 * * are met:
16 * * 1) Redistributions of source code must retain the above copyright
17 * * notice, this list of conditions and the following disclaimer.
18 * * 2) Redistributions in binary form must reproduce the above copyright
19 * * notice, this list of conditions and the following disclaimer in the
20 * * documentation and/or other materials provided with the distribution.
21 * * 3) The name of the author may not be used to endorse or promote products
22 * * derived from this software without specific prior written permission.
23 * *
24 * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
25 * * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
26 * * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27 * * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
28 * * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
29 * * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30 * * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31 * * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33 * * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 *
35 * Author: Thomas Winischhofer <thomas@winischhofer.net>
36 *
37 */
38
39 #include <linux/config.h>
40 #include <linux/module.h>
41 #include <linux/kernel.h>
42 #include <linux/errno.h>
43 #include <linux/poll.h>
44 #include <linux/init.h>
45 #include <linux/slab.h>
46 #include <linux/spinlock.h>
47 #include <linux/kref.h>
48
49 #include "sisusb.h"
50
51 #ifdef INCL_SISUSB_CON
52
53 #include "sisusb_init.h"
54
55 /*********************************************/
56 /* POINTER INITIALIZATION */
57 /*********************************************/
58
59 static void
60 SiSUSB_InitPtr(struct SiS_Private *SiS_Pr)
61 {
62 SiS_Pr->SiS_ModeResInfo = SiSUSB_ModeResInfo;
63 SiS_Pr->SiS_StandTable = SiSUSB_StandTable;
64
65 SiS_Pr->SiS_SModeIDTable = SiSUSB_SModeIDTable;
66 SiS_Pr->SiS_EModeIDTable = SiSUSB_EModeIDTable;
67 SiS_Pr->SiS_RefIndex = SiSUSB_RefIndex;
68 SiS_Pr->SiS_CRT1Table = SiSUSB_CRT1Table;
69
70 SiS_Pr->SiS_VCLKData = SiSUSB_VCLKData;
71 }
72
73 /*********************************************/
74 /* HELPER: Get ModeID */
75 /*********************************************/
76
77 unsigned short
78 SiSUSB_GetModeID(int HDisplay, int VDisplay, int Depth)
79 {
80 unsigned short ModeIndex = 0;
81
82 switch (HDisplay)
83 {
84 case 320:
85 if (VDisplay == 200)
86 ModeIndex = ModeIndex_320x200[Depth];
87 else if (VDisplay == 240)
88 ModeIndex = ModeIndex_320x240[Depth];
89 break;
90 case 400:
91 if (VDisplay == 300)
92 ModeIndex = ModeIndex_400x300[Depth];
93 break;
94 case 512:
95 if (VDisplay == 384)
96 ModeIndex = ModeIndex_512x384[Depth];
97 break;
98 case 640:
99 if (VDisplay == 480)
100 ModeIndex = ModeIndex_640x480[Depth];
101 else if (VDisplay == 400)
102 ModeIndex = ModeIndex_640x400[Depth];
103 break;
104 case 720:
105 if (VDisplay == 480)
106 ModeIndex = ModeIndex_720x480[Depth];
107 else if (VDisplay == 576)
108 ModeIndex = ModeIndex_720x576[Depth];
109 break;
110 case 768:
111 if (VDisplay == 576)
112 ModeIndex = ModeIndex_768x576[Depth];
113 break;
114 case 800:
115 if (VDisplay == 600)
116 ModeIndex = ModeIndex_800x600[Depth];
117 else if (VDisplay == 480)
118 ModeIndex = ModeIndex_800x480[Depth];
119 break;
120 case 848:
121 if (VDisplay == 480)
122 ModeIndex = ModeIndex_848x480[Depth];
123 break;
124 case 856:
125 if (VDisplay == 480)
126 ModeIndex = ModeIndex_856x480[Depth];
127 break;
128 case 960:
129 if (VDisplay == 540)
130 ModeIndex = ModeIndex_960x540[Depth];
131 else if (VDisplay == 600)
132 ModeIndex = ModeIndex_960x600[Depth];
133 break;
134 case 1024:
135 if (VDisplay == 576)
136 ModeIndex = ModeIndex_1024x576[Depth];
137 else if (VDisplay == 768)
138 ModeIndex = ModeIndex_1024x768[Depth];
139 break;
140 case 1152:
141 if (VDisplay == 864)
142 ModeIndex = ModeIndex_1152x864[Depth];
143 break;
144 case 1280:
145 switch (VDisplay) {
146 case 720:
147 ModeIndex = ModeIndex_1280x720[Depth];
148 break;
149 case 768:
150 ModeIndex = ModeIndex_1280x768[Depth];
151 break;
152 case 1024:
153 ModeIndex = ModeIndex_1280x1024[Depth];
154 break;
155 }
156 }
157
158 return ModeIndex;
159 }
160
161 /*********************************************/
162 /* HELPER: SetReg, GetReg */
163 /*********************************************/
164
165 static void
166 SiS_SetReg(struct SiS_Private *SiS_Pr, unsigned long port,
167 unsigned short index, unsigned short data)
168 {
169 sisusb_setidxreg(SiS_Pr->sisusb, port, index, data);
170 }
171
172 static void
173 SiS_SetRegByte(struct SiS_Private *SiS_Pr, unsigned long port,
174 unsigned short data)
175 {
176 sisusb_setreg(SiS_Pr->sisusb, port, data);
177 }
178
179 static unsigned char
180 SiS_GetReg(struct SiS_Private *SiS_Pr, unsigned long port,
181 unsigned short index)
182 {
183 u8 data;
184
185 sisusb_getidxreg(SiS_Pr->sisusb, port, index, &data);
186
187 return data;
188 }
189
190 static unsigned char
191 SiS_GetRegByte(struct SiS_Private *SiS_Pr, unsigned long port)
192 {
193 u8 data;
194
195 sisusb_getreg(SiS_Pr->sisusb, port, &data);
196
197 return data;
198 }
199
200 static void
201 SiS_SetRegANDOR(struct SiS_Private *SiS_Pr, unsigned long port,
202 unsigned short index, unsigned short DataAND,
203 unsigned short DataOR)
204 {
205 sisusb_setidxregandor(SiS_Pr->sisusb, port, index, DataAND, DataOR);
206 }
207
208 static void
209 SiS_SetRegAND(struct SiS_Private *SiS_Pr, unsigned long port,
210 unsigned short index, unsigned short DataAND)
211 {
212 sisusb_setidxregand(SiS_Pr->sisusb, port, index, DataAND);
213 }
214
215 static void
216 SiS_SetRegOR(struct SiS_Private *SiS_Pr,unsigned long port,
217 unsigned short index, unsigned short DataOR)
218 {
219 sisusb_setidxregor(SiS_Pr->sisusb, port, index, DataOR);
220 }
221
222 /*********************************************/
223 /* HELPER: DisplayOn, DisplayOff */
224 /*********************************************/
225
226 static void
227 SiS_DisplayOn(struct SiS_Private *SiS_Pr)
228 {
229 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, 0xDF);
230 }
231
232 /*********************************************/
233 /* HELPER: Init Port Addresses */
234 /*********************************************/
235
236 void
237 SiSUSBRegInit(struct SiS_Private *SiS_Pr, unsigned long BaseAddr)
238 {
239 SiS_Pr->SiS_P3c4 = BaseAddr + 0x14;
240 SiS_Pr->SiS_P3d4 = BaseAddr + 0x24;
241 SiS_Pr->SiS_P3c0 = BaseAddr + 0x10;
242 SiS_Pr->SiS_P3ce = BaseAddr + 0x1e;
243 SiS_Pr->SiS_P3c2 = BaseAddr + 0x12;
244 SiS_Pr->SiS_P3ca = BaseAddr + 0x1a;
245 SiS_Pr->SiS_P3c6 = BaseAddr + 0x16;
246 SiS_Pr->SiS_P3c7 = BaseAddr + 0x17;
247 SiS_Pr->SiS_P3c8 = BaseAddr + 0x18;
248 SiS_Pr->SiS_P3c9 = BaseAddr + 0x19;
249 SiS_Pr->SiS_P3cb = BaseAddr + 0x1b;
250 SiS_Pr->SiS_P3cc = BaseAddr + 0x1c;
251 SiS_Pr->SiS_P3cd = BaseAddr + 0x1d;
252 SiS_Pr->SiS_P3da = BaseAddr + 0x2a;
253 SiS_Pr->SiS_Part1Port = BaseAddr + SIS_CRT2_PORT_04;
254 }
255
256 /*********************************************/
257 /* HELPER: GetSysFlags */
258 /*********************************************/
259
260 static void
261 SiS_GetSysFlags(struct SiS_Private *SiS_Pr)
262 {
263 SiS_Pr->SiS_MyCR63 = 0x63;
264 }
265
266 /*********************************************/
267 /* HELPER: Init PCI & Engines */
268 /*********************************************/
269
270 static void
271 SiSInitPCIetc(struct SiS_Private *SiS_Pr)
272 {
273 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x20, 0xa1);
274 /* - Enable 2D (0x40)
275 * - Enable 3D (0x02)
276 * - Enable 3D vertex command fetch (0x10)
277 * - Enable 3D command parser (0x08)
278 * - Enable 3D G/L transformation engine (0x80)
279 */
280 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1E, 0xDA);
281 }
282
283 /*********************************************/
284 /* HELPER: SET SEGMENT REGISTERS */
285 /*********************************************/
286
287 static void
288 SiS_SetSegRegLower(struct SiS_Private *SiS_Pr, unsigned short value)
289 {
290 unsigned short temp;
291
292 value &= 0x00ff;
293 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb) & 0xf0;
294 temp |= (value >> 4);
295 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb, temp);
296 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd) & 0xf0;
297 temp |= (value & 0x0f);
298 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd, temp);
299 }
300
301 static void
302 SiS_SetSegRegUpper(struct SiS_Private *SiS_Pr, unsigned short value)
303 {
304 unsigned short temp;
305
306 value &= 0x00ff;
307 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb) & 0x0f;
308 temp |= (value & 0xf0);
309 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb, temp);
310 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd) & 0x0f;
311 temp |= (value << 4);
312 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd, temp);
313 }
314
315 static void
316 SiS_SetSegmentReg(struct SiS_Private *SiS_Pr, unsigned short value)
317 {
318 SiS_SetSegRegLower(SiS_Pr, value);
319 SiS_SetSegRegUpper(SiS_Pr, value);
320 }
321
322 static void
323 SiS_ResetSegmentReg(struct SiS_Private *SiS_Pr)
324 {
325 SiS_SetSegmentReg(SiS_Pr, 0);
326 }
327
328 static void
329 SiS_SetSegmentRegOver(struct SiS_Private *SiS_Pr, unsigned short value)
330 {
331 unsigned short temp = value >> 8;
332
333 temp &= 0x07;
334 temp |= (temp << 4);
335 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1d, temp);
336 SiS_SetSegmentReg(SiS_Pr, value);
337 }
338
339 static void
340 SiS_ResetSegmentRegOver(struct SiS_Private *SiS_Pr)
341 {
342 SiS_SetSegmentRegOver(SiS_Pr, 0);
343 }
344
345 static void
346 SiS_ResetSegmentRegisters(struct SiS_Private *SiS_Pr)
347 {
348 SiS_ResetSegmentReg(SiS_Pr);
349 SiS_ResetSegmentRegOver(SiS_Pr);
350 }
351
352 /*********************************************/
353 /* HELPER: SearchModeID */
354 /*********************************************/
355
356 static int
357 SiS_SearchModeID(struct SiS_Private *SiS_Pr, unsigned short *ModeNo,
358 unsigned short *ModeIdIndex)
359 {
360 if ((*ModeNo) <= 0x13) {
361
362 if ((*ModeNo) != 0x03)
363 return 0;
364
365 (*ModeIdIndex) = 0;
366
367 } else {
368
369 for(*ModeIdIndex = 0; ;(*ModeIdIndex)++) {
370
371 if (SiS_Pr->SiS_EModeIDTable[*ModeIdIndex].Ext_ModeID == (*ModeNo))
372 break;
373
374 if (SiS_Pr->SiS_EModeIDTable[*ModeIdIndex].Ext_ModeID == 0xFF)
375 return 0;
376 }
377
378 }
379
380 return 1;
381 }
382
383 /*********************************************/
384 /* HELPER: ENABLE CRT1 */
385 /*********************************************/
386
387 static void
388 SiS_HandleCRT1(struct SiS_Private *SiS_Pr)
389 {
390 /* Enable CRT1 gating */
391 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4, SiS_Pr->SiS_MyCR63, 0xbf);
392 }
393
394 /*********************************************/
395 /* HELPER: GetColorDepth */
396 /*********************************************/
397
398 static unsigned short
399 SiS_GetColorDepth(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
400 unsigned short ModeIdIndex)
401 {
402 static const unsigned short ColorDepth[6] = { 1, 2, 4, 4, 6, 8};
403 unsigned short modeflag;
404 short index;
405
406 if (ModeNo <= 0x13) {
407 modeflag = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ModeFlag;
408 } else {
409 modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
410 }
411
412 index = (modeflag & ModeTypeMask) - ModeEGA;
413 if (index < 0) index = 0;
414 return ColorDepth[index];
415 }
416
417 /*********************************************/
418 /* HELPER: GetOffset */
419 /*********************************************/
420
421 static unsigned short
422 SiS_GetOffset(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
423 unsigned short ModeIdIndex, unsigned short rrti)
424 {
425 unsigned short xres, temp, colordepth, infoflag;
426
427 infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
428 xres = SiS_Pr->SiS_RefIndex[rrti].XRes;
429
430 colordepth = SiS_GetColorDepth(SiS_Pr, ModeNo, ModeIdIndex);
431
432 temp = xres / 16;
433
434 if (infoflag & InterlaceMode)
435 temp <<= 1;
436
437 temp *= colordepth;
438
439 if (xres % 16)
440 temp += (colordepth >> 1);
441
442 return temp;
443 }
444
445 /*********************************************/
446 /* SEQ */
447 /*********************************************/
448
449 static void
450 SiS_SetSeqRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
451 {
452 unsigned char SRdata;
453 int i;
454
455 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x00, 0x03);
456
457 SRdata = SiS_Pr->SiS_StandTable[StandTableIndex].SR[0] | 0x20;
458 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, SRdata);
459
460 for(i = 2; i <= 4; i++) {
461 SRdata = SiS_Pr->SiS_StandTable[StandTableIndex].SR[i-1];
462 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, i, SRdata);
463 }
464 }
465
466 /*********************************************/
467 /* MISC */
468 /*********************************************/
469
470 static void
471 SiS_SetMiscRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
472 {
473 unsigned char Miscdata = SiS_Pr->SiS_StandTable[StandTableIndex].MISC;
474
475 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c2, Miscdata);
476 }
477
478 /*********************************************/
479 /* CRTC */
480 /*********************************************/
481
482 static void
483 SiS_SetCRTCRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
484 {
485 unsigned char CRTCdata;
486 unsigned short i;
487
488 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4, 0x11, 0x7f);
489
490 for(i = 0; i <= 0x18; i++) {
491 CRTCdata = SiS_Pr->SiS_StandTable[StandTableIndex].CRTC[i];
492 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, i, CRTCdata);
493 }
494 }
495
496 /*********************************************/
497 /* ATT */
498 /*********************************************/
499
500 static void
501 SiS_SetATTRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
502 {
503 unsigned char ARdata;
504 unsigned short i;
505
506 for(i = 0; i <= 0x13; i++) {
507 ARdata = SiS_Pr->SiS_StandTable[StandTableIndex].ATTR[i];
508 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
509 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, i);
510 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, ARdata);
511 }
512 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
513 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x14);
514 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x00);
515
516 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
517 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x20);
518 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
519 }
520
521 /*********************************************/
522 /* GRC */
523 /*********************************************/
524
525 static void
526 SiS_SetGRCRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
527 {
528 unsigned char GRdata;
529 unsigned short i;
530
531 for(i = 0; i <= 0x08; i++) {
532 GRdata = SiS_Pr->SiS_StandTable[StandTableIndex].GRC[i];
533 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3ce, i, GRdata);
534 }
535
536 if (SiS_Pr->SiS_ModeType > ModeVGA) {
537 /* 256 color disable */
538 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3ce, 0x05, 0xBF);
539 }
540 }
541
542 /*********************************************/
543 /* CLEAR EXTENDED REGISTERS */
544 /*********************************************/
545
546 static void
547 SiS_ClearExt1Regs(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
548 {
549 int i;
550
551 for(i = 0x0A; i <= 0x0E; i++) {
552 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, i, 0x00);
553 }
554
555 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x37, 0xFE);
556 }
557
558 /*********************************************/
559 /* Get rate index */
560 /*********************************************/
561
562 static unsigned short
563 SiS_GetRatePtr(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
564 unsigned short ModeIdIndex)
565 {
566 unsigned short rrti, i, index, temp;
567
568 if (ModeNo <= 0x13)
569 return 0xFFFF;
570
571 index = SiS_GetReg(SiS_Pr,SiS_Pr->SiS_P3d4, 0x33) & 0x0F;
572 if (index > 0) index--;
573
574 rrti = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].REFindex;
575 ModeNo = SiS_Pr->SiS_RefIndex[rrti].ModeID;
576
577 i = 0;
578 do {
579 if (SiS_Pr->SiS_RefIndex[rrti + i].ModeID != ModeNo)
580 break;
581
582 temp = SiS_Pr->SiS_RefIndex[rrti + i].Ext_InfoFlag & ModeTypeMask;
583 if (temp < SiS_Pr->SiS_ModeType)
584 break;
585
586 i++;
587 index--;
588 } while(index != 0xFFFF);
589
590 i--;
591
592 return (rrti + i);
593 }
594
595 /*********************************************/
596 /* SYNC */
597 /*********************************************/
598
599 static void
600 SiS_SetCRT1Sync(struct SiS_Private *SiS_Pr, unsigned short rrti)
601 {
602 unsigned short sync = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag >> 8;
603 sync &= 0xC0;
604 sync |= 0x2f;
605 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c2, sync);
606 }
607
608 /*********************************************/
609 /* CRTC/2 */
610 /*********************************************/
611
612 static void
613 SiS_SetCRT1CRTC(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
614 unsigned short ModeIdIndex, unsigned short rrti)
615 {
616 unsigned char index;
617 unsigned short temp, i, j, modeflag;
618
619 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4,0x11,0x7f);
620
621 modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
622
623 index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRT1CRTC;
624
625 for(i = 0,j = 0; i <= 7; i++, j++) {
626 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
627 SiS_Pr->SiS_CRT1Table[index].CR[i]);
628 }
629 for(j = 0x10; i <= 10; i++, j++) {
630 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
631 SiS_Pr->SiS_CRT1Table[index].CR[i]);
632 }
633 for(j = 0x15; i <= 12; i++, j++) {
634 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
635 SiS_Pr->SiS_CRT1Table[index].CR[i]);
636 }
637 for(j = 0x0A; i <= 15; i++, j++) {
638 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, j,
639 SiS_Pr->SiS_CRT1Table[index].CR[i]);
640 }
641
642 temp = SiS_Pr->SiS_CRT1Table[index].CR[16] & 0xE0;
643 SiS_SetReg(SiS_Pr,SiS_Pr->SiS_P3c4, 0x0E, temp);
644
645 temp = ((SiS_Pr->SiS_CRT1Table[index].CR[16]) & 0x01) << 5;
646 if (modeflag & DoubleScanMode) temp |= 0x80;
647 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3d4, 0x09, 0x5F, temp);
648
649 if (SiS_Pr->SiS_ModeType > ModeVGA)
650 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x14, 0x4F);
651 }
652
653 /*********************************************/
654 /* OFFSET & PITCH */
655 /*********************************************/
656 /* (partly overruled by SetPitch() in XF86) */
657 /*********************************************/
658
659 static void
660 SiS_SetCRT1Offset(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
661 unsigned short ModeIdIndex, unsigned short rrti)
662 {
663 unsigned short du = SiS_GetOffset(SiS_Pr, ModeNo, ModeIdIndex, rrti);
664 unsigned short infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
665 unsigned short temp;
666
667 temp = (du >> 8) & 0x0f;
668 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0E, 0xF0, temp);
669
670 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x13, (du & 0xFF));
671
672 if (infoflag & InterlaceMode) du >>= 1;
673
674 du <<= 5;
675 temp = (du >> 8) & 0xff;
676 if (du & 0xff) temp++;
677 temp++;
678 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x10, temp);
679 }
680
681 /*********************************************/
682 /* VCLK */
683 /*********************************************/
684
685 static void
686 SiS_SetCRT1VCLK(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
687 unsigned short rrti)
688 {
689 unsigned short index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRTVCLK;
690 unsigned short clka = SiS_Pr->SiS_VCLKData[index].SR2B;
691 unsigned short clkb = SiS_Pr->SiS_VCLKData[index].SR2C;
692
693 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4,0x31,0xCF);
694
695 SiS_SetReg(SiS_Pr,SiS_Pr->SiS_P3c4,0x2B,clka);
696 SiS_SetReg(SiS_Pr,SiS_Pr->SiS_P3c4,0x2C,clkb);
697 SiS_SetReg(SiS_Pr,SiS_Pr->SiS_P3c4,0x2D,0x01);
698 }
699
700 /*********************************************/
701 /* FIFO */
702 /*********************************************/
703
704 static void
705 SiS_SetCRT1FIFO_310(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
706 unsigned short mi)
707 {
708 unsigned short modeflag = SiS_Pr->SiS_EModeIDTable[mi].Ext_ModeFlag;
709
710 /* disable auto-threshold */
711 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x3D, 0xFE);
712
713 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x08, 0xAE);
714 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x09, 0xF0);
715
716 if (ModeNo <= 0x13)
717 return;
718
719 if ((!(modeflag & DoubleScanMode)) || (!(modeflag & HalfDCLK))) {
720 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x08, 0x34);
721 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x3D, 0x01);
722 }
723 }
724
725 /*********************************************/
726 /* MODE REGISTERS */
727 /*********************************************/
728
729 static void
730 SiS_SetVCLKState(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
731 unsigned short rrti)
732 {
733 unsigned short data = 0, VCLK = 0, index = 0;
734
735 if (ModeNo > 0x13) {
736 index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRTVCLK;
737 VCLK = SiS_Pr->SiS_VCLKData[index].CLOCK;
738 }
739
740 if (VCLK >= 166) data |= 0x0c;
741 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x32, 0xf3, data);
742
743 if (VCLK >= 166)
744 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1f, 0xe7);
745
746 /* DAC speed */
747 data = 0x03;
748 if (VCLK >= 260)
749 data = 0x00;
750 else if (VCLK >= 160)
751 data = 0x01;
752 else if (VCLK >= 135)
753 data = 0x02;
754
755 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x07, 0xF8, data);
756 }
757
758 static void
759 SiS_SetCRT1ModeRegs(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
760 unsigned short ModeIdIndex, unsigned short rrti)
761 {
762 unsigned short data, infoflag = 0, modeflag;
763
764 if (ModeNo <= 0x13)
765 modeflag = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ModeFlag;
766 else {
767 modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
768 infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
769 }
770
771 /* Disable DPMS */
772 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1F, 0x3F);
773
774 data = 0;
775 if (ModeNo > 0x13) {
776 if (SiS_Pr->SiS_ModeType > ModeEGA) {
777 data |= 0x02;
778 data |= ((SiS_Pr->SiS_ModeType - ModeVGA) << 2);
779 }
780 if (infoflag & InterlaceMode) data |= 0x20;
781 }
782 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x06, 0xC0, data);
783
784 data = 0;
785 if (infoflag & InterlaceMode) {
786 /* data = (Hsync / 8) - ((Htotal / 8) / 2) + 3 */
787 unsigned short hrs = (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x04) |
788 ((SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0b) & 0xc0) << 2)) - 3;
789 unsigned short hto = (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x00) |
790 ((SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0b) & 0x03) << 8)) + 5;
791 data = hrs - (hto >> 1) + 3;
792 }
793 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x19, (data & 0xFF));
794 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3d4, 0x1a, 0xFC, (data >> 8));
795
796 if (modeflag & HalfDCLK)
797 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, 0x08);
798
799 data = 0;
800 if (modeflag & LineCompareOff)
801 data = 0x08;
802 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0F, 0xB7, data);
803
804 if ((SiS_Pr->SiS_ModeType == ModeEGA) && (ModeNo > 0x13))
805 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0F, 0x40);
806
807 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x31, 0xfb);
808
809 data = 0x60;
810 if (SiS_Pr->SiS_ModeType != ModeText) {
811 data ^= 0x60;
812 if (SiS_Pr->SiS_ModeType != ModeEGA)
813 data ^= 0xA0;
814 }
815 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x21, 0x1F, data);
816
817 SiS_SetVCLKState(SiS_Pr, ModeNo, rrti);
818
819 if (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x31) & 0x40)
820 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x52, 0x2c);
821 else
822 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x52, 0x6c);
823 }
824
825 /*********************************************/
826 /* LOAD DAC */
827 /*********************************************/
828
829 static void
830 SiS_WriteDAC(struct SiS_Private *SiS_Pr, unsigned long DACData,
831 unsigned short shiftflag, unsigned short dl, unsigned short ah,
832 unsigned short al, unsigned short dh)
833 {
834 unsigned short d1, d2, d3;
835
836 switch (dl) {
837 case 0:
838 d1 = dh; d2 = ah; d3 = al;
839 break;
840 case 1:
841 d1 = ah; d2 = al; d3 = dh;
842 break;
843 default:
844 d1 = al; d2 = dh; d3 = ah;
845 }
846 SiS_SetRegByte(SiS_Pr, DACData, (d1 << shiftflag));
847 SiS_SetRegByte(SiS_Pr, DACData, (d2 << shiftflag));
848 SiS_SetRegByte(SiS_Pr, DACData, (d3 << shiftflag));
849 }
850
851 static void
852 SiS_LoadDAC(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short mi)
853 {
854 unsigned short data, data2, time, i, j, k, m, n, o;
855 unsigned short si, di, bx, sf;
856 unsigned long DACAddr, DACData;
857 const unsigned char *table = NULL;
858
859 if (ModeNo < 0x13)
860 data = SiS_Pr->SiS_SModeIDTable[mi].St_ModeFlag;
861 else
862 data = SiS_Pr->SiS_EModeIDTable[mi].Ext_ModeFlag;
863
864 data &= DACInfoFlag;
865
866 j = time = 64;
867 if (data == 0x00)
868 table = SiS_MDA_DAC;
869 else if (data == 0x08)
870 table = SiS_CGA_DAC;
871 else if (data == 0x10)
872 table = SiS_EGA_DAC;
873 else {
874 j = 16;
875 time = 256;
876 table = SiS_VGA_DAC;
877 }
878
879 DACAddr = SiS_Pr->SiS_P3c8;
880 DACData = SiS_Pr->SiS_P3c9;
881 sf = 0;
882 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c6, 0xFF);
883
884 SiS_SetRegByte(SiS_Pr, DACAddr, 0x00);
885
886 for(i = 0; i < j; i++) {
887 data = table[i];
888 for(k = 0; k < 3; k++) {
889 data2 = 0;
890 if (data & 0x01) data2 += 0x2A;
891 if (data & 0x02) data2 += 0x15;
892 SiS_SetRegByte(SiS_Pr, DACData, (data2 << sf));
893 data >>= 2;
894 }
895 }
896
897 if (time == 256) {
898 for(i = 16; i < 32; i++) {
899 data = table[i] << sf;
900 for(k = 0; k < 3; k++)
901 SiS_SetRegByte(SiS_Pr, DACData, data);
902 }
903 si = 32;
904 for(m = 0; m < 9; m++) {
905 di = si;
906 bx = si + 4;
907 for(n = 0; n < 3; n++) {
908 for(o = 0; o < 5; o++) {
909 SiS_WriteDAC(SiS_Pr, DACData, sf, n,
910 table[di], table[bx], table[si]);
911 si++;
912 }
913 si -= 2;
914 for(o = 0; o < 3; o++) {
915 SiS_WriteDAC(SiS_Pr, DACData, sf, n,
916 table[di], table[si], table[bx]);
917 si--;
918 }
919 }
920 si += 5;
921 }
922 }
923 }
924
925 /*********************************************/
926 /* SET CRT1 REGISTER GROUP */
927 /*********************************************/
928
929 static void
930 SiS_SetCRT1Group(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
931 unsigned short ModeIdIndex)
932 {
933 unsigned short StandTableIndex, rrti;
934
935 SiS_Pr->SiS_CRT1Mode = ModeNo;
936
937 if (ModeNo <= 0x13)
938 StandTableIndex = 0;
939 else
940 StandTableIndex = 1;
941
942 SiS_ResetSegmentRegisters(SiS_Pr);
943 SiS_SetSeqRegs(SiS_Pr, StandTableIndex);
944 SiS_SetMiscRegs(SiS_Pr, StandTableIndex);
945 SiS_SetCRTCRegs(SiS_Pr, StandTableIndex);
946 SiS_SetATTRegs(SiS_Pr, StandTableIndex);
947 SiS_SetGRCRegs(SiS_Pr, StandTableIndex);
948 SiS_ClearExt1Regs(SiS_Pr, ModeNo);
949
950 rrti = SiS_GetRatePtr(SiS_Pr, ModeNo, ModeIdIndex);
951
952 if (rrti != 0xFFFF) {
953 SiS_SetCRT1Sync(SiS_Pr, rrti);
954 SiS_SetCRT1CRTC(SiS_Pr, ModeNo, ModeIdIndex, rrti);
955 SiS_SetCRT1Offset(SiS_Pr, ModeNo, ModeIdIndex, rrti);
956 SiS_SetCRT1VCLK(SiS_Pr, ModeNo, rrti);
957 }
958
959 SiS_SetCRT1FIFO_310(SiS_Pr, ModeNo, ModeIdIndex);
960
961 SiS_SetCRT1ModeRegs(SiS_Pr, ModeNo, ModeIdIndex, rrti);
962
963 SiS_LoadDAC(SiS_Pr, ModeNo, ModeIdIndex);
964
965 SiS_DisplayOn(SiS_Pr);
966 }
967
968 /*********************************************/
969 /* SiSSetMode() */
970 /*********************************************/
971
972 int
973 SiSUSBSetMode(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
974 {
975 unsigned short ModeIdIndex;
976 unsigned long BaseAddr = SiS_Pr->IOAddress;
977
978 SiSUSB_InitPtr(SiS_Pr);
979 SiSUSBRegInit(SiS_Pr, BaseAddr);
980 SiS_GetSysFlags(SiS_Pr);
981
982 if (!(SiS_SearchModeID(SiS_Pr, &ModeNo, &ModeIdIndex)))
983 return 0;
984
985 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x05, 0x86);
986
987 SiSInitPCIetc(SiS_Pr);
988
989 ModeNo &= 0x7f;
990
991 SiS_Pr->SiS_ModeType =
992 SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag & ModeTypeMask;
993
994 SiS_Pr->SiS_SetFlag = LowModeTests;
995
996 /* Set mode on CRT1 */
997 SiS_SetCRT1Group(SiS_Pr, ModeNo, ModeIdIndex);
998
999 SiS_HandleCRT1(SiS_Pr);
1000
1001 SiS_DisplayOn(SiS_Pr);
1002 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c6, 0xFF);
1003
1004 /* Store mode number */
1005 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x34, ModeNo);
1006
1007 return 1;
1008 }
1009
1010 int
1011 SiSUSBSetVESAMode(struct SiS_Private *SiS_Pr, unsigned short VModeNo)
1012 {
1013 unsigned short ModeNo = 0;
1014 int i;
1015
1016 SiSUSB_InitPtr(SiS_Pr);
1017
1018 if (VModeNo == 0x03) {
1019
1020 ModeNo = 0x03;
1021
1022 } else {
1023
1024 i = 0;
1025 do {
1026
1027 if (SiS_Pr->SiS_EModeIDTable[i].Ext_VESAID == VModeNo) {
1028 ModeNo = SiS_Pr->SiS_EModeIDTable[i].Ext_ModeID;
1029 break;
1030 }
1031
1032 } while (SiS_Pr->SiS_EModeIDTable[i++].Ext_ModeID != 0xff);
1033
1034 }
1035
1036 if (!ModeNo)
1037 return 0;
1038
1039 return SiSUSBSetMode(SiS_Pr, ModeNo);
1040 }
1041
1042 #endif /* INCL_SISUSB_CON */
1043
1044
1045
1046
Linux with added FPC-III support