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[libata] restore sg on DMA mapping failure
[linux-2.6/kvm.git] / drivers / usb / misc / sisusbvga / sisusb_init.c
blobf28bc240f9b695e0ea5cb55aa8b7143219a0cdf5
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/version.h>
41 #include <linux/module.h>
42 #include <linux/kernel.h>
43 #include <linux/errno.h>
44 #include <linux/poll.h>
45 #include <linux/init.h>
46 #include <linux/slab.h>
47 #include <linux/spinlock.h>
48 #include <linux/kref.h>
49
50 #include "sisusb.h"
51
52 #ifdef INCL_SISUSB_CON
53
54 #include "sisusb_init.h"
55
56 /*********************************************/
57 /* POINTER INITIALIZATION */
58 /*********************************************/
59
60 static void
61 SiSUSB_InitPtr(struct SiS_Private *SiS_Pr)
62 {
63 SiS_Pr->SiS_ModeResInfo = SiSUSB_ModeResInfo;
64 SiS_Pr->SiS_StandTable = SiSUSB_StandTable;
65
66 SiS_Pr->SiS_SModeIDTable = SiSUSB_SModeIDTable;
67 SiS_Pr->SiS_EModeIDTable = SiSUSB_EModeIDTable;
68 SiS_Pr->SiS_RefIndex = SiSUSB_RefIndex;
69 SiS_Pr->SiS_CRT1Table = SiSUSB_CRT1Table;
70
71 SiS_Pr->SiS_VCLKData = SiSUSB_VCLKData;
72 }
73
74 /*********************************************/
75 /* HELPER: Get ModeID */
76 /*********************************************/
77
78 unsigned short
79 SiSUSB_GetModeID(int HDisplay, int VDisplay, int Depth)
80 {
81 unsigned short ModeIndex = 0;
82
83 switch (HDisplay)
84 {
85 case 320:
86 if (VDisplay == 200)
87 ModeIndex = ModeIndex_320x200[Depth];
88 else if (VDisplay == 240)
89 ModeIndex = ModeIndex_320x240[Depth];
90 break;
91 case 400:
92 if (VDisplay == 300)
93 ModeIndex = ModeIndex_400x300[Depth];
94 break;
95 case 512:
96 if (VDisplay == 384)
97 ModeIndex = ModeIndex_512x384[Depth];
98 break;
99 case 640:
100 if (VDisplay == 480)
101 ModeIndex = ModeIndex_640x480[Depth];
102 else if (VDisplay == 400)
103 ModeIndex = ModeIndex_640x400[Depth];
104 break;
105 case 720:
106 if (VDisplay == 480)
107 ModeIndex = ModeIndex_720x480[Depth];
108 else if (VDisplay == 576)
109 ModeIndex = ModeIndex_720x576[Depth];
110 break;
111 case 768:
112 if (VDisplay == 576)
113 ModeIndex = ModeIndex_768x576[Depth];
114 break;
115 case 800:
116 if (VDisplay == 600)
117 ModeIndex = ModeIndex_800x600[Depth];
118 else if (VDisplay == 480)
119 ModeIndex = ModeIndex_800x480[Depth];
120 break;
121 case 848:
122 if (VDisplay == 480)
123 ModeIndex = ModeIndex_848x480[Depth];
124 break;
125 case 856:
126 if (VDisplay == 480)
127 ModeIndex = ModeIndex_856x480[Depth];
128 break;
129 case 960:
130 if (VDisplay == 540)
131 ModeIndex = ModeIndex_960x540[Depth];
132 else if (VDisplay == 600)
133 ModeIndex = ModeIndex_960x600[Depth];
134 break;
135 case 1024:
136 if (VDisplay == 576)
137 ModeIndex = ModeIndex_1024x576[Depth];
138 else if (VDisplay == 768)
139 ModeIndex = ModeIndex_1024x768[Depth];
140 break;
141 case 1152:
142 if (VDisplay == 864)
143 ModeIndex = ModeIndex_1152x864[Depth];
144 break;
145 case 1280:
146 switch (VDisplay) {
147 case 720:
148 ModeIndex = ModeIndex_1280x720[Depth];
149 break;
150 case 768:
151 ModeIndex = ModeIndex_1280x768[Depth];
152 break;
153 case 1024:
154 ModeIndex = ModeIndex_1280x1024[Depth];
155 break;
156 }
157 }
158
159 return ModeIndex;
160 }
161
162 /*********************************************/
163 /* HELPER: SetReg, GetReg */
164 /*********************************************/
165
166 static void
167 SiS_SetReg(struct SiS_Private *SiS_Pr, unsigned long port,
168 unsigned short index, unsigned short data)
169 {
170 sisusb_setidxreg(SiS_Pr->sisusb, port, index, data);
171 }
172
173 static void
174 SiS_SetRegByte(struct SiS_Private *SiS_Pr, unsigned long port,
175 unsigned short data)
176 {
177 sisusb_setreg(SiS_Pr->sisusb, port, data);
178 }
179
180 static unsigned char
181 SiS_GetReg(struct SiS_Private *SiS_Pr, unsigned long port,
182 unsigned short index)
183 {
184 u8 data;
185
186 sisusb_getidxreg(SiS_Pr->sisusb, port, index, &data);
187
188 return data;
189 }
190
191 static unsigned char
192 SiS_GetRegByte(struct SiS_Private *SiS_Pr, unsigned long port)
193 {
194 u8 data;
195
196 sisusb_getreg(SiS_Pr->sisusb, port, &data);
197
198 return data;
199 }
200
201 static void
202 SiS_SetRegANDOR(struct SiS_Private *SiS_Pr, unsigned long port,
203 unsigned short index, unsigned short DataAND,
204 unsigned short DataOR)
205 {
206 sisusb_setidxregandor(SiS_Pr->sisusb, port, index, DataAND, DataOR);
207 }
208
209 static void
210 SiS_SetRegAND(struct SiS_Private *SiS_Pr, unsigned long port,
211 unsigned short index, unsigned short DataAND)
212 {
213 sisusb_setidxregand(SiS_Pr->sisusb, port, index, DataAND);
214 }
215
216 static void
217 SiS_SetRegOR(struct SiS_Private *SiS_Pr,unsigned long port,
218 unsigned short index, unsigned short DataOR)
219 {
220 sisusb_setidxregor(SiS_Pr->sisusb, port, index, DataOR);
221 }
222
223 /*********************************************/
224 /* HELPER: DisplayOn, DisplayOff */
225 /*********************************************/
226
227 static void
228 SiS_DisplayOn(struct SiS_Private *SiS_Pr)
229 {
230 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, 0xDF);
231 }
232
233 /*********************************************/
234 /* HELPER: Init Port Addresses */
235 /*********************************************/
236
237 void
238 SiSUSBRegInit(struct SiS_Private *SiS_Pr, unsigned long BaseAddr)
239 {
240 SiS_Pr->SiS_P3c4 = BaseAddr + 0x14;
241 SiS_Pr->SiS_P3d4 = BaseAddr + 0x24;
242 SiS_Pr->SiS_P3c0 = BaseAddr + 0x10;
243 SiS_Pr->SiS_P3ce = BaseAddr + 0x1e;
244 SiS_Pr->SiS_P3c2 = BaseAddr + 0x12;
245 SiS_Pr->SiS_P3ca = BaseAddr + 0x1a;
246 SiS_Pr->SiS_P3c6 = BaseAddr + 0x16;
247 SiS_Pr->SiS_P3c7 = BaseAddr + 0x17;
248 SiS_Pr->SiS_P3c8 = BaseAddr + 0x18;
249 SiS_Pr->SiS_P3c9 = BaseAddr + 0x19;
250 SiS_Pr->SiS_P3cb = BaseAddr + 0x1b;
251 SiS_Pr->SiS_P3cc = BaseAddr + 0x1c;
252 SiS_Pr->SiS_P3cd = BaseAddr + 0x1d;
253 SiS_Pr->SiS_P3da = BaseAddr + 0x2a;
254 SiS_Pr->SiS_Part1Port = BaseAddr + SIS_CRT2_PORT_04;
255 }
256
257 /*********************************************/
258 /* HELPER: GetSysFlags */
259 /*********************************************/
260
261 static void
262 SiS_GetSysFlags(struct SiS_Private *SiS_Pr)
263 {
264 SiS_Pr->SiS_MyCR63 = 0x63;
265 }
266
267 /*********************************************/
268 /* HELPER: Init PCI & Engines */
269 /*********************************************/
270
271 static void
272 SiSInitPCIetc(struct SiS_Private *SiS_Pr)
273 {
274 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x20, 0xa1);
275 /* - Enable 2D (0x40)
276 * - Enable 3D (0x02)
277 * - Enable 3D vertex command fetch (0x10)
278 * - Enable 3D command parser (0x08)
279 * - Enable 3D G/L transformation engine (0x80)
280 */
281 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1E, 0xDA);
282 }
283
284 /*********************************************/
285 /* HELPER: SET SEGMENT REGISTERS */
286 /*********************************************/
287
288 static void
289 SiS_SetSegRegLower(struct SiS_Private *SiS_Pr, unsigned short value)
290 {
291 unsigned short temp;
292
293 value &= 0x00ff;
294 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb) & 0xf0;
295 temp |= (value >> 4);
296 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb, temp);
297 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd) & 0xf0;
298 temp |= (value & 0x0f);
299 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd, temp);
300 }
301
302 static void
303 SiS_SetSegRegUpper(struct SiS_Private *SiS_Pr, unsigned short value)
304 {
305 unsigned short temp;
306
307 value &= 0x00ff;
308 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb) & 0x0f;
309 temp |= (value & 0xf0);
310 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb, temp);
311 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd) & 0x0f;
312 temp |= (value << 4);
313 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd, temp);
314 }
315
316 static void
317 SiS_SetSegmentReg(struct SiS_Private *SiS_Pr, unsigned short value)
318 {
319 SiS_SetSegRegLower(SiS_Pr, value);
320 SiS_SetSegRegUpper(SiS_Pr, value);
321 }
322
323 static void
324 SiS_ResetSegmentReg(struct SiS_Private *SiS_Pr)
325 {
326 SiS_SetSegmentReg(SiS_Pr, 0);
327 }
328
329 static void
330 SiS_SetSegmentRegOver(struct SiS_Private *SiS_Pr, unsigned short value)
331 {
332 unsigned short temp = value >> 8;
333
334 temp &= 0x07;
335 temp |= (temp << 4);
336 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1d, temp);
337 SiS_SetSegmentReg(SiS_Pr, value);
338 }
339
340 static void
341 SiS_ResetSegmentRegOver(struct SiS_Private *SiS_Pr)
342 {
343 SiS_SetSegmentRegOver(SiS_Pr, 0);
344 }
345
346 static void
347 SiS_ResetSegmentRegisters(struct SiS_Private *SiS_Pr)
348 {
349 SiS_ResetSegmentReg(SiS_Pr);
350 SiS_ResetSegmentRegOver(SiS_Pr);
351 }
352
353 /*********************************************/
354 /* HELPER: SearchModeID */
355 /*********************************************/
356
357 static int
358 SiS_SearchModeID(struct SiS_Private *SiS_Pr, unsigned short *ModeNo,
359 unsigned short *ModeIdIndex)
360 {
361 if ((*ModeNo) <= 0x13) {
362
363 if ((*ModeNo) != 0x03)
364 return 0;
365
366 (*ModeIdIndex) = 0;
367
368 } else {
369
370 for(*ModeIdIndex = 0; ;(*ModeIdIndex)++) {
371
372 if (SiS_Pr->SiS_EModeIDTable[*ModeIdIndex].Ext_ModeID == (*ModeNo))
373 break;
374
375 if (SiS_Pr->SiS_EModeIDTable[*ModeIdIndex].Ext_ModeID == 0xFF)
376 return 0;
377 }
378
379 }
380
381 return 1;
382 }
383
384 /*********************************************/
385 /* HELPER: ENABLE CRT1 */
386 /*********************************************/
387
388 static void
389 SiS_HandleCRT1(struct SiS_Private *SiS_Pr)
390 {
391 /* Enable CRT1 gating */
392 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4, SiS_Pr->SiS_MyCR63, 0xbf);
393 }
394
395 /*********************************************/
396 /* HELPER: GetColorDepth */
397 /*********************************************/
398
399 static unsigned short
400 SiS_GetColorDepth(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
401 unsigned short ModeIdIndex)
402 {
403 static const unsigned short ColorDepth[6] = { 1, 2, 4, 4, 6, 8};
404 unsigned short modeflag;
405 short index;
406
407 if (ModeNo <= 0x13) {
408 modeflag = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ModeFlag;
409 } else {
410 modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
411 }
412
413 index = (modeflag & ModeTypeMask) - ModeEGA;
414 if (index < 0) index = 0;
415 return ColorDepth[index];
416 }
417
418 /*********************************************/
419 /* HELPER: GetOffset */
420 /*********************************************/
421
422 static unsigned short
423 SiS_GetOffset(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
424 unsigned short ModeIdIndex, unsigned short rrti)
425 {
426 unsigned short xres, temp, colordepth, infoflag;
427
428 infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
429 xres = SiS_Pr->SiS_RefIndex[rrti].XRes;
430
431 colordepth = SiS_GetColorDepth(SiS_Pr, ModeNo, ModeIdIndex);
432
433 temp = xres / 16;
434
435 if (infoflag & InterlaceMode)
436 temp <<= 1;
437
438 temp *= colordepth;
439
440 if (xres % 16)
441 temp += (colordepth >> 1);
442
443 return temp;
444 }
445
446 /*********************************************/
447 /* SEQ */
448 /*********************************************/
449
450 static void
451 SiS_SetSeqRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
452 {
453 unsigned char SRdata;
454 int i;
455
456 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x00, 0x03);
457
458 SRdata = SiS_Pr->SiS_StandTable[StandTableIndex].SR[0] | 0x20;
459 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, SRdata);
460
461 for(i = 2; i <= 4; i++) {
462 SRdata = SiS_Pr->SiS_StandTable[StandTableIndex].SR[i-1];
463 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, i, SRdata);
464 }
465 }
466
467 /*********************************************/
468 /* MISC */
469 /*********************************************/
470
471 static void
472 SiS_SetMiscRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
473 {
474 unsigned char Miscdata = SiS_Pr->SiS_StandTable[StandTableIndex].MISC;
475
476 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c2, Miscdata);
477 }
478
479 /*********************************************/
480 /* CRTC */
481 /*********************************************/
482
483 static void
484 SiS_SetCRTCRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
485 {
486 unsigned char CRTCdata;
487 unsigned short i;
488
489 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4, 0x11, 0x7f);
490
491 for(i = 0; i <= 0x18; i++) {
492 CRTCdata = SiS_Pr->SiS_StandTable[StandTableIndex].CRTC[i];
493 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, i, CRTCdata);
494 }
495 }
496
497 /*********************************************/
498 /* ATT */
499 /*********************************************/
500
501 static void
502 SiS_SetATTRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
503 {
504 unsigned char ARdata;
505 unsigned short i;
506
507 for(i = 0; i <= 0x13; i++) {
508 ARdata = SiS_Pr->SiS_StandTable[StandTableIndex].ATTR[i];
509 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
510 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, i);
511 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, ARdata);
512 }
513 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
514 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x14);
515 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x00);
516
517 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
518 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x20);
519 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
520 }
521
522 /*********************************************/
523 /* GRC */
524 /*********************************************/
525
526 static void
527 SiS_SetGRCRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
528 {
529 unsigned char GRdata;
530 unsigned short i;
531
532 for(i = 0; i <= 0x08; i++) {
533 GRdata = SiS_Pr->SiS_StandTable[StandTableIndex].GRC[i];
534 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3ce, i, GRdata);
535 }
536
537 if (SiS_Pr->SiS_ModeType > ModeVGA) {
538 /* 256 color disable */
539 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3ce, 0x05, 0xBF);
540 }
541 }
542
543 /*********************************************/
544 /* CLEAR EXTENDED REGISTERS */
545 /*********************************************/
546
547 static void
548 SiS_ClearExt1Regs(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
549 {
550 int i;
551
552 for(i = 0x0A; i <= 0x0E; i++) {
553 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, i, 0x00);
554 }
555
556 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x37, 0xFE);
557 }
558
559 /*********************************************/
560 /* Get rate index */
561 /*********************************************/
562
563 static unsigned short
564 SiS_GetRatePtr(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
565 unsigned short ModeIdIndex)
566 {
567 unsigned short rrti, i, index, temp;
568
569 if (ModeNo <= 0x13)
570 return 0xFFFF;
571
572 index = SiS_GetReg(SiS_Pr,SiS_Pr->SiS_P3d4, 0x33) & 0x0F;
573 if (index > 0) index--;
574
575 rrti = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].REFindex;
576 ModeNo = SiS_Pr->SiS_RefIndex[rrti].ModeID;
577
578 i = 0;
579 do {
580 if (SiS_Pr->SiS_RefIndex[rrti + i].ModeID != ModeNo)
581 break;
582
583 temp = SiS_Pr->SiS_RefIndex[rrti + i].Ext_InfoFlag & ModeTypeMask;
584 if (temp < SiS_Pr->SiS_ModeType)
585 break;
586
587 i++;
588 index--;
589 } while(index != 0xFFFF);
590
591 i--;
592
593 return (rrti + i);
594 }
595
596 /*********************************************/
597 /* SYNC */
598 /*********************************************/
599
600 static void
601 SiS_SetCRT1Sync(struct SiS_Private *SiS_Pr, unsigned short rrti)
602 {
603 unsigned short sync = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag >> 8;
604 sync &= 0xC0;
605 sync |= 0x2f;
606 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c2, sync);
607 }
608
609 /*********************************************/
610 /* CRTC/2 */
611 /*********************************************/
612
613 static void
614 SiS_SetCRT1CRTC(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
615 unsigned short ModeIdIndex, unsigned short rrti)
616 {
617 unsigned char index;
618 unsigned short temp, i, j, modeflag;
619
620 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4,0x11,0x7f);
621
622 modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
623
624 index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRT1CRTC;
625
626 for(i = 0,j = 0; i <= 7; i++, j++) {
627 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
628 SiS_Pr->SiS_CRT1Table[index].CR[i]);
629 }
630 for(j = 0x10; i <= 10; i++, j++) {
631 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
632 SiS_Pr->SiS_CRT1Table[index].CR[i]);
633 }
634 for(j = 0x15; i <= 12; i++, j++) {
635 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
636 SiS_Pr->SiS_CRT1Table[index].CR[i]);
637 }
638 for(j = 0x0A; i <= 15; i++, j++) {
639 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, j,
640 SiS_Pr->SiS_CRT1Table[index].CR[i]);
641 }
642
643 temp = SiS_Pr->SiS_CRT1Table[index].CR[16] & 0xE0;
644 SiS_SetReg(SiS_Pr,SiS_Pr->SiS_P3c4, 0x0E, temp);
645
646 temp = ((SiS_Pr->SiS_CRT1Table[index].CR[16]) & 0x01) << 5;
647 if (modeflag & DoubleScanMode) temp |= 0x80;
648 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3d4, 0x09, 0x5F, temp);
649
650 if (SiS_Pr->SiS_ModeType > ModeVGA)
651 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x14, 0x4F);
652 }
653
654 /*********************************************/
655 /* OFFSET & PITCH */
656 /*********************************************/
657 /* (partly overruled by SetPitch() in XF86) */
658 /*********************************************/
659
660 static void
661 SiS_SetCRT1Offset(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
662 unsigned short ModeIdIndex, unsigned short rrti)
663 {
664 unsigned short du = SiS_GetOffset(SiS_Pr, ModeNo, ModeIdIndex, rrti);
665 unsigned short infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
666 unsigned short temp;
667
668 temp = (du >> 8) & 0x0f;
669 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0E, 0xF0, temp);
670
671 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x13, (du & 0xFF));
672
673 if (infoflag & InterlaceMode) du >>= 1;
674
675 du <<= 5;
676 temp = (du >> 8) & 0xff;
677 if (du & 0xff) temp++;
678 temp++;
679 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x10, temp);
680 }
681
682 /*********************************************/
683 /* VCLK */
684 /*********************************************/
685
686 static void
687 SiS_SetCRT1VCLK(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
688 unsigned short rrti)
689 {
690 unsigned short index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRTVCLK;
691 unsigned short clka = SiS_Pr->SiS_VCLKData[index].SR2B;
692 unsigned short clkb = SiS_Pr->SiS_VCLKData[index].SR2C;
693
694 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4,0x31,0xCF);
695
696 SiS_SetReg(SiS_Pr,SiS_Pr->SiS_P3c4,0x2B,clka);
697 SiS_SetReg(SiS_Pr,SiS_Pr->SiS_P3c4,0x2C,clkb);
698 SiS_SetReg(SiS_Pr,SiS_Pr->SiS_P3c4,0x2D,0x01);
699 }
700
701 /*********************************************/
702 /* FIFO */
703 /*********************************************/
704
705 static void
706 SiS_SetCRT1FIFO_310(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
707 unsigned short mi)
708 {
709 unsigned short modeflag = SiS_Pr->SiS_EModeIDTable[mi].Ext_ModeFlag;
710
711 /* disable auto-threshold */
712 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x3D, 0xFE);
713
714 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x08, 0xAE);
715 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x09, 0xF0);
716
717 if (ModeNo <= 0x13)
718 return;
719
720 if ((!(modeflag & DoubleScanMode)) || (!(modeflag & HalfDCLK))) {
721 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x08, 0x34);
722 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x3D, 0x01);
723 }
724 }
725
726 /*********************************************/
727 /* MODE REGISTERS */
728 /*********************************************/
729
730 static void
731 SiS_SetVCLKState(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
732 unsigned short rrti)
733 {
734 unsigned short data = 0, VCLK = 0, index = 0;
735
736 if (ModeNo > 0x13) {
737 index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRTVCLK;
738 VCLK = SiS_Pr->SiS_VCLKData[index].CLOCK;
739 }
740
741 if (VCLK >= 166) data |= 0x0c;
742 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x32, 0xf3, data);
743
744 if (VCLK >= 166)
745 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1f, 0xe7);
746
747 /* DAC speed */
748 data = 0x03;
749 if (VCLK >= 260)
750 data = 0x00;
751 else if (VCLK >= 160)
752 data = 0x01;
753 else if (VCLK >= 135)
754 data = 0x02;
755
756 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x07, 0xF8, data);
757 }
758
759 static void
760 SiS_SetCRT1ModeRegs(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
761 unsigned short ModeIdIndex, unsigned short rrti)
762 {
763 unsigned short data, infoflag = 0, modeflag;
764
765 if (ModeNo <= 0x13)
766 modeflag = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ModeFlag;
767 else {
768 modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
769 infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
770 }
771
772 /* Disable DPMS */
773 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1F, 0x3F);
774
775 data = 0;
776 if (ModeNo > 0x13) {
777 if (SiS_Pr->SiS_ModeType > ModeEGA) {
778 data |= 0x02;
779 data |= ((SiS_Pr->SiS_ModeType - ModeVGA) << 2);
780 }
781 if (infoflag & InterlaceMode) data |= 0x20;
782 }
783 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x06, 0xC0, data);
784
785 data = 0;
786 if (infoflag & InterlaceMode) {
787 /* data = (Hsync / 8) - ((Htotal / 8) / 2) + 3 */
788 unsigned short hrs = (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x04) |
789 ((SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0b) & 0xc0) << 2)) - 3;
790 unsigned short hto = (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x00) |
791 ((SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0b) & 0x03) << 8)) + 5;
792 data = hrs - (hto >> 1) + 3;
793 }
794 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x19, (data & 0xFF));
795 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3d4, 0x1a, 0xFC, (data >> 8));
796
797 if (modeflag & HalfDCLK)
798 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, 0x08);
799
800 data = 0;
801 if (modeflag & LineCompareOff)
802 data = 0x08;
803 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0F, 0xB7, data);
804
805 if ((SiS_Pr->SiS_ModeType == ModeEGA) && (ModeNo > 0x13))
806 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0F, 0x40);
807
808 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x31, 0xfb);
809
810 data = 0x60;
811 if (SiS_Pr->SiS_ModeType != ModeText) {
812 data ^= 0x60;
813 if (SiS_Pr->SiS_ModeType != ModeEGA)
814 data ^= 0xA0;
815 }
816 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x21, 0x1F, data);
817
818 SiS_SetVCLKState(SiS_Pr, ModeNo, rrti);
819
820 if (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x31) & 0x40)
821 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x52, 0x2c);
822 else
823 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x52, 0x6c);
824 }
825
826 /*********************************************/
827 /* LOAD DAC */
828 /*********************************************/
829
830 static void
831 SiS_WriteDAC(struct SiS_Private *SiS_Pr, unsigned long DACData,
832 unsigned short shiftflag, unsigned short dl, unsigned short ah,
833 unsigned short al, unsigned short dh)
834 {
835 unsigned short d1, d2, d3;
836
837 switch (dl) {
838 case 0:
839 d1 = dh; d2 = ah; d3 = al;
840 break;
841 case 1:
842 d1 = ah; d2 = al; d3 = dh;
843 break;
844 default:
845 d1 = al; d2 = dh; d3 = ah;
846 }
847 SiS_SetRegByte(SiS_Pr, DACData, (d1 << shiftflag));
848 SiS_SetRegByte(SiS_Pr, DACData, (d2 << shiftflag));
849 SiS_SetRegByte(SiS_Pr, DACData, (d3 << shiftflag));
850 }
851
852 static void
853 SiS_LoadDAC(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short mi)
854 {
855 unsigned short data, data2, time, i, j, k, m, n, o;
856 unsigned short si, di, bx, sf;
857 unsigned long DACAddr, DACData;
858 const unsigned char *table = NULL;
859
860 if (ModeNo < 0x13)
861 data = SiS_Pr->SiS_SModeIDTable[mi].St_ModeFlag;
862 else
863 data = SiS_Pr->SiS_EModeIDTable[mi].Ext_ModeFlag;
864
865 data &= DACInfoFlag;
866
867 j = time = 64;
868 if (data == 0x00)
869 table = SiS_MDA_DAC;
870 else if (data == 0x08)
871 table = SiS_CGA_DAC;
872 else if (data == 0x10)
873 table = SiS_EGA_DAC;
874 else {
875 j = 16;
876 time = 256;
877 table = SiS_VGA_DAC;
878 }
879
880 DACAddr = SiS_Pr->SiS_P3c8;
881 DACData = SiS_Pr->SiS_P3c9;
882 sf = 0;
883 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c6, 0xFF);
884
885 SiS_SetRegByte(SiS_Pr, DACAddr, 0x00);
886
887 for(i = 0; i < j; i++) {
888 data = table[i];
889 for(k = 0; k < 3; k++) {
890 data2 = 0;
891 if (data & 0x01) data2 += 0x2A;
892 if (data & 0x02) data2 += 0x15;
893 SiS_SetRegByte(SiS_Pr, DACData, (data2 << sf));
894 data >>= 2;
895 }
896 }
897
898 if (time == 256) {
899 for(i = 16; i < 32; i++) {
900 data = table[i] << sf;
901 for(k = 0; k < 3; k++)
902 SiS_SetRegByte(SiS_Pr, DACData, data);
903 }
904 si = 32;
905 for(m = 0; m < 9; m++) {
906 di = si;
907 bx = si + 4;
908 for(n = 0; n < 3; n++) {
909 for(o = 0; o < 5; o++) {
910 SiS_WriteDAC(SiS_Pr, DACData, sf, n,
911 table[di], table[bx], table[si]);
912 si++;
913 }
914 si -= 2;
915 for(o = 0; o < 3; o++) {
916 SiS_WriteDAC(SiS_Pr, DACData, sf, n,
917 table[di], table[si], table[bx]);
918 si--;
919 }
920 }
921 si += 5;
922 }
923 }
924 }
925
926 /*********************************************/
927 /* SET CRT1 REGISTER GROUP */
928 /*********************************************/
929
930 static void
931 SiS_SetCRT1Group(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
932 unsigned short ModeIdIndex)
933 {
934 unsigned short StandTableIndex, rrti;
935
936 SiS_Pr->SiS_CRT1Mode = ModeNo;
937
938 if (ModeNo <= 0x13)
939 StandTableIndex = 0;
940 else
941 StandTableIndex = 1;
942
943 SiS_ResetSegmentRegisters(SiS_Pr);
944 SiS_SetSeqRegs(SiS_Pr, StandTableIndex);
945 SiS_SetMiscRegs(SiS_Pr, StandTableIndex);
946 SiS_SetCRTCRegs(SiS_Pr, StandTableIndex);
947 SiS_SetATTRegs(SiS_Pr, StandTableIndex);
948 SiS_SetGRCRegs(SiS_Pr, StandTableIndex);
949 SiS_ClearExt1Regs(SiS_Pr, ModeNo);
950
951 rrti = SiS_GetRatePtr(SiS_Pr, ModeNo, ModeIdIndex);
952
953 if (rrti != 0xFFFF) {
954 SiS_SetCRT1Sync(SiS_Pr, rrti);
955 SiS_SetCRT1CRTC(SiS_Pr, ModeNo, ModeIdIndex, rrti);
956 SiS_SetCRT1Offset(SiS_Pr, ModeNo, ModeIdIndex, rrti);
957 SiS_SetCRT1VCLK(SiS_Pr, ModeNo, rrti);
958 }
959
960 SiS_SetCRT1FIFO_310(SiS_Pr, ModeNo, ModeIdIndex);
961
962 SiS_SetCRT1ModeRegs(SiS_Pr, ModeNo, ModeIdIndex, rrti);
963
964 SiS_LoadDAC(SiS_Pr, ModeNo, ModeIdIndex);
965
966 SiS_DisplayOn(SiS_Pr);
967 }
968
969 /*********************************************/
970 /* SiSSetMode() */
971 /*********************************************/
972
973 int
974 SiSUSBSetMode(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
975 {
976 unsigned short ModeIdIndex;
977 unsigned long BaseAddr = SiS_Pr->IOAddress;
978
979 SiSUSB_InitPtr(SiS_Pr);
980 SiSUSBRegInit(SiS_Pr, BaseAddr);
981 SiS_GetSysFlags(SiS_Pr);
982
983 if (!(SiS_SearchModeID(SiS_Pr, &ModeNo, &ModeIdIndex)))
984 return 0;
985
986 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x05, 0x86);
987
988 SiSInitPCIetc(SiS_Pr);
989
990 ModeNo &= 0x7f;
991
992 SiS_Pr->SiS_ModeType =
993 SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag & ModeTypeMask;
994
995 SiS_Pr->SiS_SetFlag = LowModeTests;
996
997 /* Set mode on CRT1 */
998 SiS_SetCRT1Group(SiS_Pr, ModeNo, ModeIdIndex);
999
1000 SiS_HandleCRT1(SiS_Pr);
1001
1002 SiS_DisplayOn(SiS_Pr);
1003 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c6, 0xFF);
1004
1005 /* Store mode number */
1006 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x34, ModeNo);
1007
1008 return 1;
1009 }
1010
1011 int
1012 SiSUSBSetVESAMode(struct SiS_Private *SiS_Pr, unsigned short VModeNo)
1013 {
1014 unsigned short ModeNo = 0;
1015 int i;
1016
1017 SiSUSB_InitPtr(SiS_Pr);
1018
1019 if (VModeNo == 0x03) {
1020
1021 ModeNo = 0x03;
1022
1023 } else {
1024
1025 i = 0;
1026 do {
1027
1028 if (SiS_Pr->SiS_EModeIDTable[i].Ext_VESAID == VModeNo) {
1029 ModeNo = SiS_Pr->SiS_EModeIDTable[i].Ext_ModeID;
1030 break;
1031 }
1032
1033 } while (SiS_Pr->SiS_EModeIDTable[i++].Ext_ModeID != 0xff);
1034
1035 }
1036
1037 if (!ModeNo)
1038 return 0;
1039
1040 return SiSUSBSetMode(SiS_Pr, ModeNo);
1041 }
1042
1043 #endif /* INCL_SISUSB_CON */
1044
1045
1046
1047
kernel-based virtual machine