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[net-next-2.6.git] / drivers / usb / misc / sisusbvga / sisusb_init.c
CommitLineData
1bbb4f20
TW		 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 *
ed86d970 35 * Author: Thomas Winischhofer <thomas@winischhofer.net>
1bbb4f20
TW		 36 *
37 */
38
1bbb4f20
TW		 39#include <linux/module.h>
40#include <linux/kernel.h>
41#include <linux/errno.h>
42#include <linux/poll.h>
43#include <linux/init.h>
1bbb4f20 44#include <linux/spinlock.h>
1bbb4f20
TW		 45
46#include "sisusb.h"
47
48#ifdef INCL_SISUSB_CON
49
50#include "sisusb_init.h"
51
52/*********************************************/
53/* POINTER INITIALIZATION */
54/*********************************************/
55
22b2c526 56static void SiSUSB_InitPtr(struct SiS_Private *SiS_Pr)
1bbb4f20 57{
22b2c526
FB		 58 SiS_Pr->SiS_ModeResInfo = SiSUSB_ModeResInfo;
59 SiS_Pr->SiS_StandTable = SiSUSB_StandTable;
1bbb4f20 60
22b2c526
FB		 61 SiS_Pr->SiS_SModeIDTable = SiSUSB_SModeIDTable;
62 SiS_Pr->SiS_EModeIDTable = SiSUSB_EModeIDTable;
63 SiS_Pr->SiS_RefIndex = SiSUSB_RefIndex;
64 SiS_Pr->SiS_CRT1Table = SiSUSB_CRT1Table;
1bbb4f20 65
22b2c526 66 SiS_Pr->SiS_VCLKData = SiSUSB_VCLKData;
1bbb4f20
TW		 67}
68
1bbb4f20
TW		 69/*********************************************/
70/* HELPER: SetReg, GetReg */
71/*********************************************/
72
73static void
74SiS_SetReg(struct SiS_Private *SiS_Pr, unsigned long port,
22b2c526 75 unsigned short index, unsigned short data)
1bbb4f20
TW		 76{
77 sisusb_setidxreg(SiS_Pr->sisusb, port, index, data);
78}
79
80static void
81SiS_SetRegByte(struct SiS_Private *SiS_Pr, unsigned long port,
22b2c526 82 unsigned short data)
1bbb4f20
TW		 83{
84 sisusb_setreg(SiS_Pr->sisusb, port, data);
85}
86
87static unsigned char
22b2c526 88SiS_GetReg(struct SiS_Private *SiS_Pr, unsigned long port, unsigned short index)
1bbb4f20
TW		 89{
90 u8 data;
91
92 sisusb_getidxreg(SiS_Pr->sisusb, port, index, &data);
93
94 return data;
95}
96
97static unsigned char
98SiS_GetRegByte(struct SiS_Private *SiS_Pr, unsigned long port)
99{
100 u8 data;
101
102 sisusb_getreg(SiS_Pr->sisusb, port, &data);
103
104 return data;
105}
106
107static void
108SiS_SetRegANDOR(struct SiS_Private *SiS_Pr, unsigned long port,
22b2c526
FB		 109 unsigned short index, unsigned short DataAND,
110 unsigned short DataOR)
1bbb4f20
TW		 111{
112 sisusb_setidxregandor(SiS_Pr->sisusb, port, index, DataAND, DataOR);
113}
114
115static void
116SiS_SetRegAND(struct SiS_Private *SiS_Pr, unsigned long port,
22b2c526 117 unsigned short index, unsigned short DataAND)
1bbb4f20
TW		 118{
119 sisusb_setidxregand(SiS_Pr->sisusb, port, index, DataAND);
120}
121
122static void
22b2c526
FB		 123SiS_SetRegOR(struct SiS_Private *SiS_Pr, unsigned long port,
124 unsigned short index, unsigned short DataOR)
1bbb4f20
TW		 125{
126 sisusb_setidxregor(SiS_Pr->sisusb, port, index, DataOR);
127}
128
129/*********************************************/
130/* HELPER: DisplayOn, DisplayOff */
131/*********************************************/
132
22b2c526 133static void SiS_DisplayOn(struct SiS_Private *SiS_Pr)
1bbb4f20
TW		 134{
135 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, 0xDF);
136}
137
138/*********************************************/
139/* HELPER: Init Port Addresses */
140/*********************************************/
141
22b2c526 142static void SiSUSBRegInit(struct SiS_Private *SiS_Pr, unsigned long BaseAddr)
1bbb4f20
TW		 143{
144 SiS_Pr->SiS_P3c4 = BaseAddr + 0x14;
145 SiS_Pr->SiS_P3d4 = BaseAddr + 0x24;
146 SiS_Pr->SiS_P3c0 = BaseAddr + 0x10;
147 SiS_Pr->SiS_P3ce = BaseAddr + 0x1e;
148 SiS_Pr->SiS_P3c2 = BaseAddr + 0x12;
149 SiS_Pr->SiS_P3ca = BaseAddr + 0x1a;
150 SiS_Pr->SiS_P3c6 = BaseAddr + 0x16;
151 SiS_Pr->SiS_P3c7 = BaseAddr + 0x17;
152 SiS_Pr->SiS_P3c8 = BaseAddr + 0x18;
153 SiS_Pr->SiS_P3c9 = BaseAddr + 0x19;
154 SiS_Pr->SiS_P3cb = BaseAddr + 0x1b;
155 SiS_Pr->SiS_P3cc = BaseAddr + 0x1c;
156 SiS_Pr->SiS_P3cd = BaseAddr + 0x1d;
157 SiS_Pr->SiS_P3da = BaseAddr + 0x2a;
158 SiS_Pr->SiS_Part1Port = BaseAddr + SIS_CRT2_PORT_04;
159}
160
161/*********************************************/
162/* HELPER: GetSysFlags */
163/*********************************************/
164
22b2c526 165static void SiS_GetSysFlags(struct SiS_Private *SiS_Pr)
1bbb4f20
TW		 166{
167 SiS_Pr->SiS_MyCR63 = 0x63;
168}
169
170/*********************************************/
171/* HELPER: Init PCI & Engines */
172/*********************************************/
173
22b2c526 174static void SiSInitPCIetc(struct SiS_Private *SiS_Pr)
1bbb4f20
TW		 175{
176 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x20, 0xa1);
177 /* - Enable 2D (0x40)
178 * - Enable 3D (0x02)
179 * - Enable 3D vertex command fetch (0x10)
180 * - Enable 3D command parser (0x08)
181 * - Enable 3D G/L transformation engine (0x80)
182 */
183 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1E, 0xDA);
184}
185
186/*********************************************/
187/* HELPER: SET SEGMENT REGISTERS */
188/*********************************************/
189
22b2c526 190static void SiS_SetSegRegLower(struct SiS_Private *SiS_Pr, unsigned short value)
1bbb4f20
TW		 191{
192 unsigned short temp;
193
194 value &= 0x00ff;
195 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb) & 0xf0;
196 temp |= (value >> 4);
197 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb, temp);
198 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd) & 0xf0;
199 temp |= (value & 0x0f);
200 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd, temp);
201}
202
22b2c526 203static void SiS_SetSegRegUpper(struct SiS_Private *SiS_Pr, unsigned short value)
1bbb4f20
TW		 204{
205 unsigned short temp;
206
207 value &= 0x00ff;
208 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb) & 0x0f;
209 temp |= (value & 0xf0);
210 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb, temp);
211 temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd) & 0x0f;
212 temp |= (value << 4);
213 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd, temp);
214}
215
22b2c526 216static void SiS_SetSegmentReg(struct SiS_Private *SiS_Pr, unsigned short value)
1bbb4f20
TW		 217{
218 SiS_SetSegRegLower(SiS_Pr, value);
219 SiS_SetSegRegUpper(SiS_Pr, value);
220}
221
22b2c526 222static void SiS_ResetSegmentReg(struct SiS_Private *SiS_Pr)
1bbb4f20
TW		 223{
224 SiS_SetSegmentReg(SiS_Pr, 0);
225}
226
227static void
228SiS_SetSegmentRegOver(struct SiS_Private *SiS_Pr, unsigned short value)
229{
230 unsigned short temp = value >> 8;
231
232 temp &= 0x07;
233 temp |= (temp << 4);
234 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1d, temp);
235 SiS_SetSegmentReg(SiS_Pr, value);
236}
237
22b2c526 238static void SiS_ResetSegmentRegOver(struct SiS_Private *SiS_Pr)
1bbb4f20
TW		 239{
240 SiS_SetSegmentRegOver(SiS_Pr, 0);
241}
242
22b2c526 243static void SiS_ResetSegmentRegisters(struct SiS_Private *SiS_Pr)
1bbb4f20
TW		 244{
245 SiS_ResetSegmentReg(SiS_Pr);
246 SiS_ResetSegmentRegOver(SiS_Pr);
247}
248
249/*********************************************/
250/* HELPER: SearchModeID */
251/*********************************************/
252
253static int
254SiS_SearchModeID(struct SiS_Private *SiS_Pr, unsigned short *ModeNo,
22b2c526 255 unsigned short *ModeIdIndex)
1bbb4f20
TW		 256{
257 if ((*ModeNo) <= 0x13) {
258
259 if ((*ModeNo) != 0x03)
260 return 0;
261
262 (*ModeIdIndex) = 0;
263
264 } else {
265
22b2c526 266 for (*ModeIdIndex = 0;; (*ModeIdIndex)++) {
1bbb4f20 267
22b2c526
FB		 268 if (SiS_Pr->SiS_EModeIDTable[*ModeIdIndex].Ext_ModeID ==
269 (*ModeNo))
1bbb4f20
TW		 270 break;
271
22b2c526
FB		 272 if (SiS_Pr->SiS_EModeIDTable[*ModeIdIndex].Ext_ModeID ==
273 0xFF)
1bbb4f20
TW		 274 return 0;
275 }
276
277 }
278
279 return 1;
280}
281
282/*********************************************/
283/* HELPER: ENABLE CRT1 */
284/*********************************************/
285
22b2c526 286static void SiS_HandleCRT1(struct SiS_Private *SiS_Pr)
1bbb4f20
TW		 287{
288 /* Enable CRT1 gating */
289 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4, SiS_Pr->SiS_MyCR63, 0xbf);
290}
291
292/*********************************************/
293/* HELPER: GetColorDepth */
294/*********************************************/
295
296static unsigned short
297SiS_GetColorDepth(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
22b2c526 298 unsigned short ModeIdIndex)
1bbb4f20 299{
22b2c526 300 static const unsigned short ColorDepth[6] = { 1, 2, 4, 4, 6, 8 };
1bbb4f20
TW		 301 unsigned short modeflag;
302 short index;
303
304 if (ModeNo <= 0x13) {
305 modeflag = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ModeFlag;
306 } else {
307 modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
308 }
309
310 index = (modeflag & ModeTypeMask) - ModeEGA;
22b2c526
FB		 311 if (index < 0)
312 index = 0;
1bbb4f20
TW		 313 return ColorDepth[index];
314}
315
316/*********************************************/
317/* HELPER: GetOffset */
318/*********************************************/
319
320static unsigned short
321SiS_GetOffset(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
22b2c526 322 unsigned short ModeIdIndex, unsigned short rrti)
1bbb4f20
TW		 323{
324 unsigned short xres, temp, colordepth, infoflag;
325
326 infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
327 xres = SiS_Pr->SiS_RefIndex[rrti].XRes;
328
329 colordepth = SiS_GetColorDepth(SiS_Pr, ModeNo, ModeIdIndex);
330
331 temp = xres / 16;
332
333 if (infoflag & InterlaceMode)
334 temp <<= 1;
335
336 temp *= colordepth;
337
338 if (xres % 16)
339 temp += (colordepth >> 1);
340
341 return temp;
342}
343
344/*********************************************/
345/* SEQ */
346/*********************************************/
347
348static void
349SiS_SetSeqRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
350{
351 unsigned char SRdata;
352 int i;
353
354 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x00, 0x03);
355
356 SRdata = SiS_Pr->SiS_StandTable[StandTableIndex].SR[0] | 0x20;
357 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, SRdata);
358
22b2c526
FB		 359 for (i = 2; i <= 4; i++) {
360 SRdata = SiS_Pr->SiS_StandTable[StandTableIndex].SR[i - 1];
1bbb4f20
TW		 361 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, i, SRdata);
362 }
363}
364
365/*********************************************/
366/* MISC */
367/*********************************************/
368
369static void
370SiS_SetMiscRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
371{
372 unsigned char Miscdata = SiS_Pr->SiS_StandTable[StandTableIndex].MISC;
373
374 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c2, Miscdata);
375}
376
377/*********************************************/
378/* CRTC */
379/*********************************************/
380
381static void
382SiS_SetCRTCRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
383{
384 unsigned char CRTCdata;
385 unsigned short i;
386
387 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4, 0x11, 0x7f);
388
22b2c526 389 for (i = 0; i <= 0x18; i++) {
1bbb4f20
TW		 390 CRTCdata = SiS_Pr->SiS_StandTable[StandTableIndex].CRTC[i];
391 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, i, CRTCdata);
392 }
393}
394
395/*********************************************/
396/* ATT */
397/*********************************************/
398
399static void
400SiS_SetATTRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
401{
402 unsigned char ARdata;
403 unsigned short i;
404
22b2c526 405 for (i = 0; i <= 0x13; i++) {
1bbb4f20
TW		 406 ARdata = SiS_Pr->SiS_StandTable[StandTableIndex].ATTR[i];
407 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
408 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, i);
409 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, ARdata);
410 }
411 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
412 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x14);
413 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x00);
414
415 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
416 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x20);
417 SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
418}
419
420/*********************************************/
421/* GRC */
422/*********************************************/
423
424static void
425SiS_SetGRCRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
426{
427 unsigned char GRdata;
428 unsigned short i;
429
22b2c526 430 for (i = 0; i <= 0x08; i++) {
1bbb4f20
TW		 431 GRdata = SiS_Pr->SiS_StandTable[StandTableIndex].GRC[i];
432 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3ce, i, GRdata);
433 }
434
435 if (SiS_Pr->SiS_ModeType > ModeVGA) {
436 /* 256 color disable */
437 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3ce, 0x05, 0xBF);
438 }
439}
440
441/*********************************************/
442/* CLEAR EXTENDED REGISTERS */
443/*********************************************/
444
22b2c526 445static void SiS_ClearExt1Regs(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
1bbb4f20
TW		 446{
447 int i;
448
22b2c526 449 for (i = 0x0A; i <= 0x0E; i++) {
1bbb4f20
TW		 450 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, i, 0x00);
451 }
452
453 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x37, 0xFE);
454}
455
456/*********************************************/
457/* Get rate index */
458/*********************************************/
459
460static unsigned short
461SiS_GetRatePtr(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
22b2c526 462 unsigned short ModeIdIndex)
1bbb4f20
TW		 463{
464 unsigned short rrti, i, index, temp;
465
466 if (ModeNo <= 0x13)
467 return 0xFFFF;
468
22b2c526
FB		 469 index = SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x33) & 0x0F;
470 if (index > 0)
471 index--;
1bbb4f20
TW		 472
473 rrti = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].REFindex;
474 ModeNo = SiS_Pr->SiS_RefIndex[rrti].ModeID;
475
476 i = 0;
477 do {
478 if (SiS_Pr->SiS_RefIndex[rrti + i].ModeID != ModeNo)
479 break;
480
22b2c526
FB		 481 temp =
482 SiS_Pr->SiS_RefIndex[rrti + i].Ext_InfoFlag & ModeTypeMask;
1bbb4f20
TW		 483 if (temp < SiS_Pr->SiS_ModeType)
484 break;
485
486 i++;
487 index--;
22b2c526 488 } while (index != 0xFFFF);
1bbb4f20
TW		 489
490 i--;
491
492 return (rrti + i);
493}
494
495/*********************************************/
496/* SYNC */
497/*********************************************/
498
22b2c526 499static void SiS_SetCRT1Sync(struct SiS_Private *SiS_Pr, unsigned short rrti)
1bbb4f20
TW		 500{
501 unsigned short sync = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag >> 8;
502 sync &= 0xC0;
503 sync |= 0x2f;
504 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c2, sync);
505}
506
507/*********************************************/
508/* CRTC/2 */
509/*********************************************/
510
511static void
512SiS_SetCRT1CRTC(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
22b2c526 513 unsigned short ModeIdIndex, unsigned short rrti)
1bbb4f20 514{
22b2c526 515 unsigned char index;
1bbb4f20
TW		 516 unsigned short temp, i, j, modeflag;
517
22b2c526 518 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4, 0x11, 0x7f);
1bbb4f20
TW		 519
520 modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
521
522 index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRT1CRTC;
523
22b2c526 524 for (i = 0, j = 0; i <= 7; i++, j++) {
1bbb4f20 525 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
22b2c526 526 SiS_Pr->SiS_CRT1Table[index].CR[i]);
1bbb4f20 527 }
22b2c526 528 for (j = 0x10; i <= 10; i++, j++) {
1bbb4f20 529 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
22b2c526 530 SiS_Pr->SiS_CRT1Table[index].CR[i]);
1bbb4f20 531 }
22b2c526 532 for (j = 0x15; i <= 12; i++, j++) {
1bbb4f20 533 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
22b2c526 534 SiS_Pr->SiS_CRT1Table[index].CR[i]);
1bbb4f20 535 }
22b2c526 536 for (j = 0x0A; i <= 15; i++, j++) {
1bbb4f20 537 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, j,
22b2c526 538 SiS_Pr->SiS_CRT1Table[index].CR[i]);
1bbb4f20
TW		 539 }
540
541 temp = SiS_Pr->SiS_CRT1Table[index].CR[16] & 0xE0;
22b2c526 542 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0E, temp);
1bbb4f20
TW		 543
544 temp = ((SiS_Pr->SiS_CRT1Table[index].CR[16]) & 0x01) << 5;
22b2c526
FB		 545 if (modeflag & DoubleScanMode)
546 temp |= 0x80;
1bbb4f20
TW		 547 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3d4, 0x09, 0x5F, temp);
548
549 if (SiS_Pr->SiS_ModeType > ModeVGA)
550 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x14, 0x4F);
551}
552
553/*********************************************/
554/* OFFSET & PITCH */
555/*********************************************/
556/* (partly overruled by SetPitch() in XF86) */
557/*********************************************/
558
559static void
560SiS_SetCRT1Offset(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
22b2c526 561 unsigned short ModeIdIndex, unsigned short rrti)
1bbb4f20
TW		 562{
563 unsigned short du = SiS_GetOffset(SiS_Pr, ModeNo, ModeIdIndex, rrti);
22b2c526 564 unsigned short infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
1bbb4f20
TW		 565 unsigned short temp;
566
567 temp = (du >> 8) & 0x0f;
568 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0E, 0xF0, temp);
569
570 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x13, (du & 0xFF));
571
22b2c526
FB		 572 if (infoflag & InterlaceMode)
573 du >>= 1;
1bbb4f20
TW		 574
575 du <<= 5;
576 temp = (du >> 8) & 0xff;
22b2c526
FB		 577 if (du & 0xff)
578 temp++;
1bbb4f20
TW		 579 temp++;
580 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x10, temp);
581}
582
583/*********************************************/
584/* VCLK */
585/*********************************************/
586
587static void
588SiS_SetCRT1VCLK(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
22b2c526 589 unsigned short rrti)
1bbb4f20
TW		 590{
591 unsigned short index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRTVCLK;
592 unsigned short clka = SiS_Pr->SiS_VCLKData[index].SR2B;
593 unsigned short clkb = SiS_Pr->SiS_VCLKData[index].SR2C;
594
22b2c526 595 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x31, 0xCF);
1bbb4f20 596
22b2c526
FB		 597 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x2B, clka);
598 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x2C, clkb);
599 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x2D, 0x01);
1bbb4f20
TW		 600}
601
602/*********************************************/
603/* FIFO */
604/*********************************************/
605
606static void
607SiS_SetCRT1FIFO_310(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
22b2c526 608 unsigned short mi)
1bbb4f20
TW		 609{
610 unsigned short modeflag = SiS_Pr->SiS_EModeIDTable[mi].Ext_ModeFlag;
611
612 /* disable auto-threshold */
613 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x3D, 0xFE);
614
615 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x08, 0xAE);
616 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x09, 0xF0);
617
618 if (ModeNo <= 0x13)
619 return;
620
621 if ((!(modeflag & DoubleScanMode)) || (!(modeflag & HalfDCLK))) {
622 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x08, 0x34);
623 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x3D, 0x01);
624 }
625}
626
627/*********************************************/
628/* MODE REGISTERS */
629/*********************************************/
630
631static void
632SiS_SetVCLKState(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
22b2c526 633 unsigned short rrti)
1bbb4f20
TW		 634{
635 unsigned short data = 0, VCLK = 0, index = 0;
636
637 if (ModeNo > 0x13) {
638 index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRTVCLK;
639 VCLK = SiS_Pr->SiS_VCLKData[index].CLOCK;
640 }
641
22b2c526
FB		 642 if (VCLK >= 166)
643 data |= 0x0c;
1bbb4f20
TW		 644 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x32, 0xf3, data);
645
646 if (VCLK >= 166)
647 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1f, 0xe7);
648
649 /* DAC speed */
650 data = 0x03;
651 if (VCLK >= 260)
652 data = 0x00;
653 else if (VCLK >= 160)
654 data = 0x01;
655 else if (VCLK >= 135)
656 data = 0x02;
657
658 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x07, 0xF8, data);
659}
660
661static void
662SiS_SetCRT1ModeRegs(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
22b2c526 663 unsigned short ModeIdIndex, unsigned short rrti)
1bbb4f20
TW		 664{
665 unsigned short data, infoflag = 0, modeflag;
666
667 if (ModeNo <= 0x13)
668 modeflag = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ModeFlag;
669 else {
670 modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
671 infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
672 }
673
674 /* Disable DPMS */
675 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1F, 0x3F);
676
677 data = 0;
678 if (ModeNo > 0x13) {
679 if (SiS_Pr->SiS_ModeType > ModeEGA) {
680 data |= 0x02;
681 data |= ((SiS_Pr->SiS_ModeType - ModeVGA) << 2);
682 }
22b2c526
FB		 683 if (infoflag & InterlaceMode)
684 data |= 0x20;
1bbb4f20
TW		 685 }
686 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x06, 0xC0, data);
687
688 data = 0;
689 if (infoflag & InterlaceMode) {
690 /* data = (Hsync / 8) - ((Htotal / 8) / 2) + 3 */
22b2c526
FB		 691 unsigned short hrs =
692 (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x04) |
693 ((SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0b) & 0xc0) << 2))
694 - 3;
695 unsigned short hto =
696 (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x00) |
697 ((SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0b) & 0x03) << 8))
698 + 5;
1bbb4f20
TW		 699 data = hrs - (hto >> 1) + 3;
700 }
701 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x19, (data & 0xFF));
702 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3d4, 0x1a, 0xFC, (data >> 8));
703
704 if (modeflag & HalfDCLK)
705 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, 0x08);
706
707 data = 0;
708 if (modeflag & LineCompareOff)
709 data = 0x08;
710 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0F, 0xB7, data);
711
712 if ((SiS_Pr->SiS_ModeType == ModeEGA) && (ModeNo > 0x13))
713 SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0F, 0x40);
714
715 SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x31, 0xfb);
716
717 data = 0x60;
718 if (SiS_Pr->SiS_ModeType != ModeText) {
719 data ^= 0x60;
720 if (SiS_Pr->SiS_ModeType != ModeEGA)
721 data ^= 0xA0;
722 }
723 SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x21, 0x1F, data);
724
725 SiS_SetVCLKState(SiS_Pr, ModeNo, rrti);
726
727 if (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x31) & 0x40)
728 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x52, 0x2c);
729 else
730 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x52, 0x6c);
731}
732
733/*********************************************/
734/* LOAD DAC */
735/*********************************************/
736
737static void
738SiS_WriteDAC(struct SiS_Private *SiS_Pr, unsigned long DACData,
22b2c526
FB		 739 unsigned short shiftflag, unsigned short dl, unsigned short ah,
740 unsigned short al, unsigned short dh)
1bbb4f20
TW		 741{
742 unsigned short d1, d2, d3;
743
744 switch (dl) {
22b2c526
FB		 745 case 0:
746 d1 = dh;
747 d2 = ah;
748 d3 = al;
749 break;
750 case 1:
751 d1 = ah;
752 d2 = al;
753 d3 = dh;
754 break;
755 default:
756 d1 = al;
757 d2 = dh;
758 d3 = ah;
1bbb4f20
TW		 759 }
760 SiS_SetRegByte(SiS_Pr, DACData, (d1 << shiftflag));
761 SiS_SetRegByte(SiS_Pr, DACData, (d2 << shiftflag));
762 SiS_SetRegByte(SiS_Pr, DACData, (d3 << shiftflag));
763}
764
765static void
22b2c526
FB		 766SiS_LoadDAC(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
767 unsigned short mi)
1bbb4f20
TW		 768{
769 unsigned short data, data2, time, i, j, k, m, n, o;
770 unsigned short si, di, bx, sf;
771 unsigned long DACAddr, DACData;
772 const unsigned char *table = NULL;
773
774 if (ModeNo < 0x13)
775 data = SiS_Pr->SiS_SModeIDTable[mi].St_ModeFlag;
776 else
777 data = SiS_Pr->SiS_EModeIDTable[mi].Ext_ModeFlag;
778
779 data &= DACInfoFlag;
780
781 j = time = 64;
782 if (data == 0x00)
783 table = SiS_MDA_DAC;
784 else if (data == 0x08)
785 table = SiS_CGA_DAC;
786 else if (data == 0x10)
787 table = SiS_EGA_DAC;
788 else {
789 j = 16;
790 time = 256;
791 table = SiS_VGA_DAC;
792 }
793
794 DACAddr = SiS_Pr->SiS_P3c8;
795 DACData = SiS_Pr->SiS_P3c9;
796 sf = 0;
797 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c6, 0xFF);
798
799 SiS_SetRegByte(SiS_Pr, DACAddr, 0x00);
800
22b2c526 801 for (i = 0; i < j; i++) {
1bbb4f20 802 data = table[i];
22b2c526 803 for (k = 0; k < 3; k++) {
1bbb4f20 804 data2 = 0;
22b2c526
FB		 805 if (data & 0x01)
806 data2 += 0x2A;
807 if (data & 0x02)
808 data2 += 0x15;
1bbb4f20
TW		 809 SiS_SetRegByte(SiS_Pr, DACData, (data2 << sf));
810 data >>= 2;
811 }
812 }
813
814 if (time == 256) {
22b2c526 815 for (i = 16; i < 32; i++) {
1bbb4f20 816 data = table[i] << sf;
22b2c526 817 for (k = 0; k < 3; k++)
1bbb4f20
TW		 818 SiS_SetRegByte(SiS_Pr, DACData, data);
819 }
820 si = 32;
22b2c526 821 for (m = 0; m < 9; m++) {
1bbb4f20
TW		 822 di = si;
823 bx = si + 4;
22b2c526
FB		 824 for (n = 0; n < 3; n++) {
825 for (o = 0; o < 5; o++) {
1bbb4f20 826 SiS_WriteDAC(SiS_Pr, DACData, sf, n,
22b2c526
FB		 827 table[di], table[bx],
828 table[si]);
1bbb4f20
TW		 829 si++;
830 }
831 si -= 2;
22b2c526 832 for (o = 0; o < 3; o++) {
1bbb4f20 833 SiS_WriteDAC(SiS_Pr, DACData, sf, n,
22b2c526
FB		 834 table[di], table[si],
835 table[bx]);
1bbb4f20
TW		 836 si--;
837 }
838 }
22b2c526 839 si += 5;
1bbb4f20
TW		 840 }
841 }
842}
843
844/*********************************************/
845/* SET CRT1 REGISTER GROUP */
846/*********************************************/
847
848static void
849SiS_SetCRT1Group(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
22b2c526 850 unsigned short ModeIdIndex)
1bbb4f20
TW		 851{
852 unsigned short StandTableIndex, rrti;
853
854 SiS_Pr->SiS_CRT1Mode = ModeNo;
855
856 if (ModeNo <= 0x13)
857 StandTableIndex = 0;
858 else
859 StandTableIndex = 1;
860
861 SiS_ResetSegmentRegisters(SiS_Pr);
862 SiS_SetSeqRegs(SiS_Pr, StandTableIndex);
863 SiS_SetMiscRegs(SiS_Pr, StandTableIndex);
864 SiS_SetCRTCRegs(SiS_Pr, StandTableIndex);
865 SiS_SetATTRegs(SiS_Pr, StandTableIndex);
866 SiS_SetGRCRegs(SiS_Pr, StandTableIndex);
867 SiS_ClearExt1Regs(SiS_Pr, ModeNo);
868
869 rrti = SiS_GetRatePtr(SiS_Pr, ModeNo, ModeIdIndex);
870
871 if (rrti != 0xFFFF) {
872 SiS_SetCRT1Sync(SiS_Pr, rrti);
873 SiS_SetCRT1CRTC(SiS_Pr, ModeNo, ModeIdIndex, rrti);
874 SiS_SetCRT1Offset(SiS_Pr, ModeNo, ModeIdIndex, rrti);
875 SiS_SetCRT1VCLK(SiS_Pr, ModeNo, rrti);
876 }
877
878 SiS_SetCRT1FIFO_310(SiS_Pr, ModeNo, ModeIdIndex);
879
880 SiS_SetCRT1ModeRegs(SiS_Pr, ModeNo, ModeIdIndex, rrti);
881
882 SiS_LoadDAC(SiS_Pr, ModeNo, ModeIdIndex);
883
884 SiS_DisplayOn(SiS_Pr);
885}
886
887/*********************************************/
888/* SiSSetMode() */
889/*********************************************/
890
22b2c526 891int SiSUSBSetMode(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
1bbb4f20
TW		 892{
893 unsigned short ModeIdIndex;
22b2c526 894 unsigned long BaseAddr = SiS_Pr->IOAddress;
1bbb4f20
TW		 895
896 SiSUSB_InitPtr(SiS_Pr);
897 SiSUSBRegInit(SiS_Pr, BaseAddr);
898 SiS_GetSysFlags(SiS_Pr);
899
900 if (!(SiS_SearchModeID(SiS_Pr, &ModeNo, &ModeIdIndex)))
901 return 0;
902
903 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x05, 0x86);
904
905 SiSInitPCIetc(SiS_Pr);
906
907 ModeNo &= 0x7f;
908
909 SiS_Pr->SiS_ModeType =
22b2c526 910 SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag & ModeTypeMask;
1bbb4f20
TW		 911
912 SiS_Pr->SiS_SetFlag = LowModeTests;
913
914 /* Set mode on CRT1 */
915 SiS_SetCRT1Group(SiS_Pr, ModeNo, ModeIdIndex);
916
917 SiS_HandleCRT1(SiS_Pr);
918
919 SiS_DisplayOn(SiS_Pr);
920 SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c6, 0xFF);
921
922 /* Store mode number */
923 SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x34, ModeNo);
924
925 return 1;
926}
927
22b2c526 928int SiSUSBSetVESAMode(struct SiS_Private *SiS_Pr, unsigned short VModeNo)
1bbb4f20
TW		 929{
930 unsigned short ModeNo = 0;
931 int i;
932
933 SiSUSB_InitPtr(SiS_Pr);
934
935 if (VModeNo == 0x03) {
936
937 ModeNo = 0x03;
938
939 } else {
940
941 i = 0;
942 do {
943
944 if (SiS_Pr->SiS_EModeIDTable[i].Ext_VESAID == VModeNo) {
945 ModeNo = SiS_Pr->SiS_EModeIDTable[i].Ext_ModeID;
946 break;
947 }
948
949 } while (SiS_Pr->SiS_EModeIDTable[i++].Ext_ModeID != 0xff);
950
951 }
952
953 if (!ModeNo)
954 return 0;
955
956 return SiSUSBSetMode(SiS_Pr, ModeNo);
957}
958
959#endif /* INCL_SISUSB_CON */
Clone of davem's net-next-2.6 tree