1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * XG20, XG21, XG40, XG42 frame buffer device
4 * for Linux kernels 2.5.x, 2.6.x
5 * Base on TW's sis fbdev code.
6 */
7
8 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
9
10 #include <linux/sizes.h>
11 #include <linux/module.h>
12 #include <linux/pci.h>
13
14 #include "XGI_main.h"
15 #include "vb_init.h"
16 #include "vb_util.h"
17 #include "vb_setmode.h"
18
19 #define Index_CR_GPIO_Reg1 0x48
20 #define Index_CR_GPIO_Reg3 0x4a
21
22 #define GPIOG_EN BIT(6)
23 #define GPIOG_READ BIT(1)
24
25 static char *forcecrt2type;
26 static char *mode;
27 static int vesa = -1;
28 static unsigned int refresh_rate;
29
30 /* -------------------- Macro definitions ---------------------------- */
31
32 #ifdef DEBUG
dumpVGAReg(struct xgifb_video_info * xgifb_info)33 static void dumpVGAReg(struct xgifb_video_info *xgifb_info)
34 {
35 struct vb_device_info *vb = &xgifb_info->dev_info;
36 u8 i, reg;
37
38 xgifb_reg_set(vb->P3c4, 0x05, 0x86);
39
40 for (i = 0; i < 0x4f; i++) {
41 reg = xgifb_reg_get(vb->P3c4, i);
42 pr_debug("o 3c4 %x\n", i);
43 pr_debug("i 3c5 => %x\n", reg);
44 }
45
46 for (i = 0; i < 0xF0; i++) {
47 reg = xgifb_reg_get(vb->P3d4, i);
48 pr_debug("o 3d4 %x\n", i);
49 pr_debug("i 3d5 => %x\n", reg);
50 }
51 }
52 #else
dumpVGAReg(struct xgifb_video_info * xgifb_info)53 static inline void dumpVGAReg(struct xgifb_video_info *xgifb_info)
54 {
55 }
56 #endif
57
58 /* --------------- Hardware Access Routines -------------------------- */
59
XGIfb_mode_rate_to_dclock(struct vb_device_info * XGI_Pr,struct xgi_hw_device_info * HwDeviceExtension,unsigned char modeno)60 static int XGIfb_mode_rate_to_dclock(struct vb_device_info *XGI_Pr,
61 struct xgi_hw_device_info *HwDeviceExtension,
62 unsigned char modeno)
63 {
64 unsigned short ModeNo = modeno;
65 unsigned short ModeIdIndex = 0, ClockIndex = 0;
66 unsigned short RefreshRateTableIndex = 0;
67
68 InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
69
70 XGI_SearchModeID(ModeNo, &ModeIdIndex);
71
72 RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
73 ModeIdIndex, XGI_Pr);
74
75 ClockIndex = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
76
77 return XGI_VCLKData[ClockIndex].CLOCK * 1000;
78 }
79
XGIfb_mode_rate_to_ddata(struct vb_device_info * XGI_Pr,struct xgi_hw_device_info * HwDeviceExtension,unsigned char modeno,u32 * left_margin,u32 * right_margin,u32 * upper_margin,u32 * lower_margin,u32 * hsync_len,u32 * vsync_len,u32 * sync,u32 * vmode)80 static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
81 struct xgi_hw_device_info *HwDeviceExtension,
82 unsigned char modeno, u32 *left_margin,
83 u32 *right_margin, u32 *upper_margin,
84 u32 *lower_margin, u32 *hsync_len,
85 u32 *vsync_len, u32 *sync, u32 *vmode)
86 {
87 unsigned short ModeNo = modeno;
88 unsigned short ModeIdIndex, index = 0;
89 unsigned short RefreshRateTableIndex = 0;
90
91 unsigned short VRE, VBE, VRS, VDE;
92 unsigned short HRE, HBE, HRS, HDE;
93 unsigned char sr_data, cr_data, cr_data2;
94 int B, C, D, F, temp, j;
95
96 InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
97 if (!XGI_SearchModeID(ModeNo, &ModeIdIndex))
98 return 0;
99 RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
100 ModeIdIndex, XGI_Pr);
101 index = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC;
102
103 sr_data = XGI_CRT1Table[index].CR[5];
104
105 HDE = XGI330_RefIndex[RefreshRateTableIndex].XRes >> 3;
106
107 cr_data = XGI_CRT1Table[index].CR[3];
108
109 /* Horizontal retrace (=sync) start */
110 HRS = (cr_data & 0xff) | ((unsigned short)(sr_data & 0xC0) << 2);
111 F = HRS - HDE - 3;
112
113 sr_data = XGI_CRT1Table[index].CR[6];
114
115 cr_data = XGI_CRT1Table[index].CR[2];
116
117 cr_data2 = XGI_CRT1Table[index].CR[4];
118
119 /* Horizontal blank end */
120 HBE = (cr_data & 0x1f) | ((unsigned short)(cr_data2 & 0x80) >> 2)
121 | ((unsigned short)(sr_data & 0x03) << 6);
122
123 /* Horizontal retrace (=sync) end */
124 HRE = (cr_data2 & 0x1f) | ((sr_data & 0x04) << 3);
125
126 temp = HBE - ((HDE - 1) & 255);
127 B = (temp > 0) ? temp : (temp + 256);
128
129 temp = HRE - ((HDE + F + 3) & 63);
130 C = (temp > 0) ? temp : (temp + 64);
131
132 D = B - F - C;
133
134 *left_margin = D * 8;
135 *right_margin = F * 8;
136 *hsync_len = C * 8;
137
138 sr_data = XGI_CRT1Table[index].CR[14];
139
140 cr_data2 = XGI_CRT1Table[index].CR[9];
141
142 VDE = XGI330_RefIndex[RefreshRateTableIndex].YRes;
143
144 cr_data = XGI_CRT1Table[index].CR[10];
145
146 /* Vertical retrace (=sync) start */
147 VRS = (cr_data & 0xff) | ((unsigned short)(cr_data2 & 0x04) << 6)
148 | ((unsigned short)(cr_data2 & 0x80) << 2)
149 | ((unsigned short)(sr_data & 0x08) << 7);
150 F = VRS + 1 - VDE;
151
152 cr_data = XGI_CRT1Table[index].CR[13];
153
154 /* Vertical blank end */
155 VBE = (cr_data & 0xff) | ((unsigned short)(sr_data & 0x10) << 4);
156 temp = VBE - ((VDE - 1) & 511);
157 B = (temp > 0) ? temp : (temp + 512);
158
159 cr_data = XGI_CRT1Table[index].CR[11];
160
161 /* Vertical retrace (=sync) end */
162 VRE = (cr_data & 0x0f) | ((sr_data & 0x20) >> 1);
163 temp = VRE - ((VDE + F - 1) & 31);
164 C = (temp > 0) ? temp : (temp + 32);
165
166 D = B - F - C;
167
168 *upper_margin = D;
169 *lower_margin = F;
170 *vsync_len = C;
171
172 if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x8000)
173 *sync &= ~FB_SYNC_VERT_HIGH_ACT;
174 else
175 *sync |= FB_SYNC_VERT_HIGH_ACT;
176
177 if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x4000)
178 *sync &= ~FB_SYNC_HOR_HIGH_ACT;
179 else
180 *sync |= FB_SYNC_HOR_HIGH_ACT;
181
182 *vmode = FB_VMODE_NONINTERLACED;
183 if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x0080) {
184 *vmode = FB_VMODE_INTERLACED;
185 } else {
186 j = 0;
187 while (XGI330_EModeIDTable[j].Ext_ModeID != 0xff) {
188 if (XGI330_EModeIDTable[j].Ext_ModeID ==
189 XGI330_RefIndex[RefreshRateTableIndex].ModeID) {
190 if (XGI330_EModeIDTable[j].Ext_ModeFlag &
191 DoubleScanMode) {
192 *vmode = FB_VMODE_DOUBLE;
193 }
194 break;
195 }
196 j++;
197 }
198 }
199
200 return 1;
201 }
202
XGIRegInit(struct vb_device_info * XGI_Pr,unsigned long BaseAddr)203 void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
204 {
205 XGI_Pr->P3c4 = BaseAddr + 0x14;
206 XGI_Pr->P3d4 = BaseAddr + 0x24;
207 XGI_Pr->P3c0 = BaseAddr + 0x10;
208 XGI_Pr->P3ce = BaseAddr + 0x1e;
209 XGI_Pr->P3c2 = BaseAddr + 0x12;
210 XGI_Pr->P3cc = BaseAddr + 0x1c;
211 XGI_Pr->P3ca = BaseAddr + 0x1a;
212 XGI_Pr->P3c6 = BaseAddr + 0x16;
213 XGI_Pr->P3c7 = BaseAddr + 0x17;
214 XGI_Pr->P3c8 = BaseAddr + 0x18;
215 XGI_Pr->P3c9 = BaseAddr + 0x19;
216 XGI_Pr->P3da = BaseAddr + 0x2A;
217 XGI_Pr->Part0Port = BaseAddr + XGI_CRT2_PORT_00;
218 /* Digital video interface registers (LCD) */
219 XGI_Pr->Part1Port = BaseAddr + SIS_CRT2_PORT_04;
220 /* 301 TV Encoder registers */
221 XGI_Pr->Part2Port = BaseAddr + SIS_CRT2_PORT_10;
222 /* 301 Macrovision registers */
223 XGI_Pr->Part3Port = BaseAddr + SIS_CRT2_PORT_12;
224 /* 301 VGA2 (and LCD) registers */
225 XGI_Pr->Part4Port = BaseAddr + SIS_CRT2_PORT_14;
226 /* 301 palette address port registers */
227 XGI_Pr->Part5Port = BaseAddr + SIS_CRT2_PORT_14 + 2;
228 }
229
230 /* ------------------ Internal helper routines ----------------- */
231
XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info * xgifb_info)232 static int XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info *xgifb_info)
233 {
234 int i = 0;
235
236 while ((XGIbios_mode[i].mode_no != 0) &&
237 (XGIbios_mode[i].xres <= xgifb_info->lvds_data.LVDSHDE)) {
238 if ((XGIbios_mode[i].xres == xgifb_info->lvds_data.LVDSHDE) &&
239 (XGIbios_mode[i].yres == xgifb_info->lvds_data.LVDSVDE) &&
240 (XGIbios_mode[i].bpp == 8)) {
241 return i;
242 }
243 i++;
244 }
245
246 return -1;
247 }
248
XGIfb_search_mode(struct xgifb_video_info * xgifb_info,const char * name)249 static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info,
250 const char *name)
251 {
252 unsigned int xres;
253 unsigned int yres;
254 unsigned int bpp;
255 int i;
256
257 if (sscanf(name, "%ux%ux%u", &xres, &yres, &bpp) != 3)
258 goto invalid_mode;
259
260 if (bpp == 24)
261 bpp = 32; /* That's for people who mix up color and fb depth. */
262
263 for (i = 0; XGIbios_mode[i].mode_no != 0; i++)
264 if (XGIbios_mode[i].xres == xres &&
265 XGIbios_mode[i].yres == yres &&
266 XGIbios_mode[i].bpp == bpp) {
267 xgifb_info->mode_idx = i;
268 return;
269 }
270 invalid_mode:
271 pr_info("Invalid mode '%s'\n", name);
272 }
273
XGIfb_search_vesamode(struct xgifb_video_info * xgifb_info,unsigned int vesamode)274 static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info,
275 unsigned int vesamode)
276 {
277 int i = 0;
278
279 if (vesamode == 0)
280 goto invalid;
281
282 vesamode &= 0x1dff; /* Clean VESA mode number from other flags */
283
284 while (XGIbios_mode[i].mode_no != 0) {
285 if ((XGIbios_mode[i].vesa_mode_no_1 == vesamode) ||
286 (XGIbios_mode[i].vesa_mode_no_2 == vesamode)) {
287 xgifb_info->mode_idx = i;
288 return;
289 }
290 i++;
291 }
292
293 invalid:
294 pr_info("Invalid VESA mode 0x%x'\n", vesamode);
295 }
296
XGIfb_validate_mode(struct xgifb_video_info * xgifb_info,int myindex)297 static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
298 {
299 u16 xres, yres;
300 struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
301 unsigned long required_mem;
302
303 if (xgifb_info->chip == XG21) {
304 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
305 xres = xgifb_info->lvds_data.LVDSHDE;
306 yres = xgifb_info->lvds_data.LVDSVDE;
307 if (XGIbios_mode[myindex].xres > xres)
308 return -1;
309 if (XGIbios_mode[myindex].yres > yres)
310 return -1;
311 if ((XGIbios_mode[myindex].xres < xres) &&
312 (XGIbios_mode[myindex].yres < yres)) {
313 if (XGIbios_mode[myindex].bpp > 8)
314 return -1;
315 }
316 }
317 goto check_memory;
318 }
319
320 /* FIXME: for now, all is valid on XG27 */
321 if (xgifb_info->chip == XG27)
322 goto check_memory;
323
324 if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
325 return -1;
326
327 switch (xgifb_info->display2) {
328 case XGIFB_DISP_LCD:
329 switch (hw_info->ulCRT2LCDType) {
330 case LCD_640x480:
331 xres = 640;
332 yres = 480;
333 break;
334 case LCD_800x600:
335 xres = 800;
336 yres = 600;
337 break;
338 case LCD_1024x600:
339 xres = 1024;
340 yres = 600;
341 break;
342 case LCD_1024x768:
343 xres = 1024;
344 yres = 768;
345 break;
346 case LCD_1152x768:
347 xres = 1152;
348 yres = 768;
349 break;
350 case LCD_1280x960:
351 xres = 1280;
352 yres = 960;
353 break;
354 case LCD_1280x768:
355 xres = 1280;
356 yres = 768;
357 break;
358 case LCD_1280x1024:
359 xres = 1280;
360 yres = 1024;
361 break;
362 case LCD_1400x1050:
363 xres = 1400;
364 yres = 1050;
365 break;
366 case LCD_1600x1200:
367 xres = 1600;
368 yres = 1200;
369 break;
370 default:
371 xres = 0;
372 yres = 0;
373 break;
374 }
375 if (XGIbios_mode[myindex].xres > xres)
376 return -1;
377 if (XGIbios_mode[myindex].yres > yres)
378 return -1;
379 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
380 (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
381 switch (XGIbios_mode[myindex].xres) {
382 case 512:
383 if (XGIbios_mode[myindex].yres != 512)
384 return -1;
385 if (hw_info->ulCRT2LCDType == LCD_1024x600)
386 return -1;
387 break;
388 case 640:
389 if ((XGIbios_mode[myindex].yres != 400) &&
390 (XGIbios_mode[myindex].yres != 480))
391 return -1;
392 break;
393 case 800:
394 if (XGIbios_mode[myindex].yres != 600)
395 return -1;
396 break;
397 case 1024:
398 if ((XGIbios_mode[myindex].yres != 600) &&
399 (XGIbios_mode[myindex].yres != 768))
400 return -1;
401 if ((XGIbios_mode[myindex].yres == 600) &&
402 (hw_info->ulCRT2LCDType != LCD_1024x600))
403 return -1;
404 break;
405 case 1152:
406 if ((XGIbios_mode[myindex].yres) != 768)
407 return -1;
408 if (hw_info->ulCRT2LCDType != LCD_1152x768)
409 return -1;
410 break;
411 case 1280:
412 if ((XGIbios_mode[myindex].yres != 768) &&
413 (XGIbios_mode[myindex].yres != 1024))
414 return -1;
415 if ((XGIbios_mode[myindex].yres == 768) &&
416 (hw_info->ulCRT2LCDType != LCD_1280x768))
417 return -1;
418 break;
419 case 1400:
420 if (XGIbios_mode[myindex].yres != 1050)
421 return -1;
422 break;
423 case 1600:
424 if (XGIbios_mode[myindex].yres != 1200)
425 return -1;
426 break;
427 default:
428 return -1;
429 }
430 } else {
431 switch (XGIbios_mode[myindex].xres) {
432 case 512:
433 if (XGIbios_mode[myindex].yres != 512)
434 return -1;
435 break;
436 case 640:
437 if ((XGIbios_mode[myindex].yres != 400) &&
438 (XGIbios_mode[myindex].yres != 480))
439 return -1;
440 break;
441 case 800:
442 if (XGIbios_mode[myindex].yres != 600)
443 return -1;
444 break;
445 case 1024:
446 if (XGIbios_mode[myindex].yres != 768)
447 return -1;
448 break;
449 case 1280:
450 if ((XGIbios_mode[myindex].yres != 960) &&
451 (XGIbios_mode[myindex].yres != 1024))
452 return -1;
453 if (XGIbios_mode[myindex].yres == 960) {
454 if (hw_info->ulCRT2LCDType ==
455 LCD_1400x1050)
456 return -1;
457 }
458 break;
459 case 1400:
460 if (XGIbios_mode[myindex].yres != 1050)
461 return -1;
462 break;
463 case 1600:
464 if (XGIbios_mode[myindex].yres != 1200)
465 return -1;
466 break;
467 default:
468 return -1;
469 }
470 }
471 break;
472 case XGIFB_DISP_TV:
473 switch (XGIbios_mode[myindex].xres) {
474 case 512:
475 case 640:
476 case 800:
477 break;
478 case 720:
479 if (xgifb_info->TV_type == TVMODE_NTSC) {
480 if (XGIbios_mode[myindex].yres != 480)
481 return -1;
482 } else if (xgifb_info->TV_type == TVMODE_PAL) {
483 if (XGIbios_mode[myindex].yres != 576)
484 return -1;
485 }
486 /* LVDS/CHRONTEL does not support 720 */
487 if (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL ||
488 xgifb_info->hasVB == HASVB_CHRONTEL) {
489 return -1;
490 }
491 break;
492 case 1024:
493 if (xgifb_info->TV_type == TVMODE_NTSC) {
494 if (XGIbios_mode[myindex].bpp == 32)
495 return -1;
496 }
497 break;
498 default:
499 return -1;
500 }
501 break;
502 case XGIFB_DISP_CRT:
503 if (XGIbios_mode[myindex].xres > 1280)
504 return -1;
505 break;
506 case XGIFB_DISP_NONE:
507 break;
508 }
509
510 check_memory:
511 required_mem = XGIbios_mode[myindex].xres * XGIbios_mode[myindex].yres *
512 XGIbios_mode[myindex].bpp / 8;
513 if (required_mem > xgifb_info->video_size)
514 return -1;
515 return myindex;
516 }
517
XGIfb_search_crt2type(const char * name)518 static void XGIfb_search_crt2type(const char *name)
519 {
520 int i = 0;
521
522 if (!name)
523 return;
524
525 while (XGI_crt2type[i].type_no != -1) {
526 if (!strcmp(name, XGI_crt2type[i].name)) {
527 XGIfb_crt2type = XGI_crt2type[i].type_no;
528 XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
529 break;
530 }
531 i++;
532 }
533 if (XGIfb_crt2type < 0)
534 pr_info("Invalid CRT2 type: %s\n", name);
535 }
536
XGIfb_search_refresh_rate(struct xgifb_video_info * xgifb_info,unsigned int rate)537 static u8 XGIfb_search_refresh_rate(struct xgifb_video_info *xgifb_info,
538 unsigned int rate)
539 {
540 u16 xres, yres;
541 int i = 0;
542
543 xres = XGIbios_mode[xgifb_info->mode_idx].xres;
544 yres = XGIbios_mode[xgifb_info->mode_idx].yres;
545
546 xgifb_info->rate_idx = 0;
547
548 while (XGIfb_vrate[i].idx != 0 && XGIfb_vrate[i].xres <= xres) {
549 /* Skip values with xres or yres less than specified */
550 if ((XGIfb_vrate[i].yres != yres) ||
551 (XGIfb_vrate[i].xres != xres)) {
552 i++;
553 continue;
554 }
555 if (XGIfb_vrate[i].refresh == rate) {
556 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
557 break;
558 } else if (XGIfb_vrate[i].refresh > rate) {
559 if (XGIfb_vrate[i].refresh - rate <= 3) {
560 pr_debug("Adjusting rate from %d up to %d\n",
561 rate, XGIfb_vrate[i].refresh);
562 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
563 xgifb_info->refresh_rate =
564 XGIfb_vrate[i].refresh;
565 } else if ((XGIfb_vrate[i].idx != 1) &&
566 (rate - XGIfb_vrate[i - 1].refresh <= 2)) {
567 pr_debug("Adjusting rate from %d down to %d\n",
568 rate, XGIfb_vrate[i - 1].refresh);
569 xgifb_info->rate_idx = XGIfb_vrate[i - 1].idx;
570 xgifb_info->refresh_rate =
571 XGIfb_vrate[i - 1].refresh;
572 }
573 break;
574 } else if (rate - XGIfb_vrate[i].refresh <= 2) {
575 pr_debug("Adjusting rate from %d down to %d\n",
576 rate, XGIfb_vrate[i].refresh);
577 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
578 break;
579 }
580 i++;
581 }
582
583 if (xgifb_info->rate_idx > 0)
584 return xgifb_info->rate_idx;
585 pr_info("Unsupported rate %d for %dx%d\n",
586 rate, xres, yres);
587 return 0;
588 }
589
XGIfb_search_tvstd(const char * name)590 static void XGIfb_search_tvstd(const char *name)
591 {
592 int i = 0;
593
594 if (!name)
595 return;
596
597 while (XGI_tvtype[i].type_no != -1) {
598 if (!strcmp(name, XGI_tvtype[i].name)) {
599 XGIfb_tvmode = XGI_tvtype[i].type_no;
600 break;
601 }
602 i++;
603 }
604 }
605
606 /* ----------- FBDev related routines for all series ----------- */
607
XGIfb_bpp_to_var(struct xgifb_video_info * xgifb_info,struct fb_var_screeninfo * var)608 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
609 struct fb_var_screeninfo *var)
610 {
611 switch (var->bits_per_pixel) {
612 case 8:
613 var->red.offset = 0;
614 var->green.offset = 0;
615 var->blue.offset = 0;
616 var->red.length = 6;
617 var->green.length = 6;
618 var->blue.length = 6;
619 xgifb_info->video_cmap_len = 256;
620 break;
621 case 16:
622 var->red.offset = 11;
623 var->red.length = 5;
624 var->green.offset = 5;
625 var->green.length = 6;
626 var->blue.offset = 0;
627 var->blue.length = 5;
628 var->transp.offset = 0;
629 var->transp.length = 0;
630 xgifb_info->video_cmap_len = 16;
631 break;
632 case 32:
633 var->red.offset = 16;
634 var->red.length = 8;
635 var->green.offset = 8;
636 var->green.length = 8;
637 var->blue.offset = 0;
638 var->blue.length = 8;
639 var->transp.offset = 24;
640 var->transp.length = 8;
641 xgifb_info->video_cmap_len = 16;
642 break;
643 }
644 }
645
646 /* --------------------- SetMode routines ------------------------- */
647
XGIfb_pre_setmode(struct xgifb_video_info * xgifb_info)648 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
649 {
650 struct vb_device_info *vb = &xgifb_info->dev_info;
651 u8 cr30 = 0, cr31 = 0;
652
653 cr31 = xgifb_reg_get(vb->P3d4, 0x31);
654 cr31 &= ~0x60;
655
656 switch (xgifb_info->display2) {
657 case XGIFB_DISP_CRT:
658 cr30 = SIS_VB_OUTPUT_CRT2 | SIS_SIMULTANEOUS_VIEW_ENABLE;
659 cr31 |= SIS_DRIVER_MODE;
660 break;
661 case XGIFB_DISP_LCD:
662 cr30 = SIS_VB_OUTPUT_LCD | SIS_SIMULTANEOUS_VIEW_ENABLE;
663 cr31 |= SIS_DRIVER_MODE;
664 break;
665 case XGIFB_DISP_TV:
666 if (xgifb_info->TV_type == TVMODE_HIVISION)
667 cr30 = SIS_VB_OUTPUT_HIVISION
668 | SIS_SIMULTANEOUS_VIEW_ENABLE;
669 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
670 cr30 = SIS_VB_OUTPUT_SVIDEO
671 | SIS_SIMULTANEOUS_VIEW_ENABLE;
672 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
673 cr30 = SIS_VB_OUTPUT_COMPOSITE
674 | SIS_SIMULTANEOUS_VIEW_ENABLE;
675 else if (xgifb_info->TV_plug == TVPLUG_SCART)
676 cr30 = SIS_VB_OUTPUT_SCART
677 | SIS_SIMULTANEOUS_VIEW_ENABLE;
678 cr31 |= SIS_DRIVER_MODE;
679
680 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
681 cr31 |= 0x01;
682 else
683 cr31 &= ~0x01;
684 break;
685 default: /* disable CRT2 */
686 cr30 = 0x00;
687 cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE);
688 }
689
690 xgifb_reg_set(vb->P3d4, IND_XGI_SCRATCH_REG_CR30, cr30);
691 xgifb_reg_set(vb->P3d4, IND_XGI_SCRATCH_REG_CR31, cr31);
692 xgifb_reg_set(vb->P3d4, IND_XGI_SCRATCH_REG_CR33,
693 (xgifb_info->rate_idx & 0x0F));
694 }
695
XGIfb_post_setmode(struct xgifb_video_info * xgifb_info)696 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
697 {
698 struct vb_device_info *vb = &xgifb_info->dev_info;
699 u8 reg;
700 unsigned char doit = 1;
701
702 if (xgifb_info->video_bpp == 8) {
703 /*
704 * We can't switch off CRT1 on LVDS/Chrontel
705 * in 8bpp Modes
706 */
707 if ((xgifb_info->hasVB == HASVB_LVDS) ||
708 (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
709 doit = 0;
710 }
711 /*
712 * We can't switch off CRT1 on 301B-DH
713 * in 8bpp Modes if using LCD
714 */
715 if (xgifb_info->display2 == XGIFB_DISP_LCD)
716 doit = 0;
717 }
718
719 /* We can't switch off CRT1 if bridge is in slave mode */
720 if (xgifb_info->hasVB != HASVB_NONE) {
721 reg = xgifb_reg_get(vb->Part1Port, 0x00);
722
723 if ((reg & 0x50) == 0x10)
724 doit = 0;
725
726 } else {
727 XGIfb_crt1off = 0;
728 }
729
730 reg = xgifb_reg_get(vb->P3d4, 0x17);
731 if ((XGIfb_crt1off) && (doit))
732 reg &= ~0x80;
733 else
734 reg |= 0x80;
735 xgifb_reg_set(vb->P3d4, 0x17, reg);
736
737 xgifb_reg_and(vb->P3c4, IND_SIS_RAMDAC_CONTROL, ~0x04);
738
739 if (xgifb_info->display2 == XGIFB_DISP_TV &&
740 xgifb_info->hasVB == HASVB_301) {
741 reg = xgifb_reg_get(vb->Part4Port, 0x01);
742
743 if (reg < 0xB0) { /* Set filter for XGI301 */
744 int filter_tb;
745
746 switch (xgifb_info->video_width) {
747 case 320:
748 filter_tb = (xgifb_info->TV_type ==
749 TVMODE_NTSC) ? 4 : 12;
750 break;
751 case 640:
752 filter_tb = (xgifb_info->TV_type ==
753 TVMODE_NTSC) ? 5 : 13;
754 break;
755 case 720:
756 filter_tb = (xgifb_info->TV_type ==
757 TVMODE_NTSC) ? 6 : 14;
758 break;
759 case 800:
760 filter_tb = (xgifb_info->TV_type ==
761 TVMODE_NTSC) ? 7 : 15;
762 break;
763 default:
764 filter_tb = 0;
765 filter = -1;
766 break;
767 }
768 xgifb_reg_or(vb->Part1Port, SIS_CRT2_WENABLE_315, 0x01);
769
770 if (xgifb_info->TV_type == TVMODE_NTSC) {
771 xgifb_reg_and(vb->Part2Port, 0x3a, 0x1f);
772
773 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
774 xgifb_reg_and(vb->Part2Port, 0x30, 0xdf);
775
776 } else if (xgifb_info->TV_plug
777 == TVPLUG_COMPOSITE) {
778 xgifb_reg_or(vb->Part2Port, 0x30, 0x20);
779
780 switch (xgifb_info->video_width) {
781 case 640:
782 xgifb_reg_set(vb->Part2Port,
783 0x35,
784 0xEB);
785 xgifb_reg_set(vb->Part2Port,
786 0x36,
787 0x04);
788 xgifb_reg_set(vb->Part2Port,
789 0x37,
790 0x25);
791 xgifb_reg_set(vb->Part2Port,
792 0x38,
793 0x18);
794 break;
795 case 720:
796 xgifb_reg_set(vb->Part2Port,
797 0x35,
798 0xEE);
799 xgifb_reg_set(vb->Part2Port,
800 0x36,
801 0x0C);
802 xgifb_reg_set(vb->Part2Port,
803 0x37,
804 0x22);
805 xgifb_reg_set(vb->Part2Port,
806 0x38,
807 0x08);
808 break;
809 case 800:
810 xgifb_reg_set(vb->Part2Port,
811 0x35,
812 0xEB);
813 xgifb_reg_set(vb->Part2Port,
814 0x36,
815 0x15);
816 xgifb_reg_set(vb->Part2Port,
817 0x37,
818 0x25);
819 xgifb_reg_set(vb->Part2Port,
820 0x38,
821 0xF6);
822 break;
823 }
824 }
825
826 } else if (xgifb_info->TV_type == TVMODE_PAL) {
827 xgifb_reg_and(vb->Part2Port, 0x3A, 0x1F);
828
829 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
830 xgifb_reg_and(vb->Part2Port, 0x30, 0xDF);
831
832 } else if (xgifb_info->TV_plug
833 == TVPLUG_COMPOSITE) {
834 xgifb_reg_or(vb->Part2Port, 0x30, 0x20);
835
836 switch (xgifb_info->video_width) {
837 case 640:
838 xgifb_reg_set(vb->Part2Port,
839 0x35,
840 0xF1);
841 xgifb_reg_set(vb->Part2Port,
842 0x36,
843 0xF7);
844 xgifb_reg_set(vb->Part2Port,
845 0x37,
846 0x1F);
847 xgifb_reg_set(vb->Part2Port,
848 0x38,
849 0x32);
850 break;
851 case 720:
852 xgifb_reg_set(vb->Part2Port,
853 0x35,
854 0xF3);
855 xgifb_reg_set(vb->Part2Port,
856 0x36,
857 0x00);
858 xgifb_reg_set(vb->Part2Port,
859 0x37,
860 0x1D);
861 xgifb_reg_set(vb->Part2Port,
862 0x38,
863 0x20);
864 break;
865 case 800:
866 xgifb_reg_set(vb->Part2Port,
867 0x35,
868 0xFC);
869 xgifb_reg_set(vb->Part2Port,
870 0x36,
871 0xFB);
872 xgifb_reg_set(vb->Part2Port,
873 0x37,
874 0x14);
875 xgifb_reg_set(vb->Part2Port,
876 0x38,
877 0x2A);
878 break;
879 }
880 }
881 }
882
883 if ((filter >= 0) && (filter <= 7)) {
884 const u8 *f = XGI_TV_filter[filter_tb].filter[filter];
885
886 pr_debug("FilterTable[%d]-%d: %*ph\n",
887 filter_tb, filter, 4, f);
888 xgifb_reg_set(vb->Part2Port, 0x35, f[0]);
889 xgifb_reg_set(vb->Part2Port, 0x36, f[1]);
890 xgifb_reg_set(vb->Part2Port, 0x37, f[2]);
891 xgifb_reg_set(vb->Part2Port, 0x38, f[3]);
892 }
893 }
894 }
895 }
896
XGIfb_do_set_var(struct fb_var_screeninfo * var,int isactive,struct fb_info * info)897 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
898 struct fb_info *info)
899 {
900 struct xgifb_video_info *xgifb_info = info->par;
901 struct vb_device_info *vb = &xgifb_info->dev_info;
902 struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
903 unsigned int htotal = var->left_margin + var->xres + var->right_margin
904 + var->hsync_len;
905 unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
906 + var->vsync_len;
907 #if defined(__BIG_ENDIAN)
908 u8 cr_data;
909 #endif
910 unsigned int drate = 0, hrate = 0;
911 int found_mode = 0;
912 int old_mode;
913
914 info->var.xres_virtual = var->xres_virtual;
915 info->var.yres_virtual = var->yres_virtual;
916 info->var.bits_per_pixel = var->bits_per_pixel;
917
918 if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
919 vtotal <<= 1;
920 else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
921 vtotal <<= 2;
922
923 if (!htotal || !vtotal) {
924 pr_debug("Invalid 'var' information\n");
925 return -EINVAL;
926 } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
927 var->pixclock, htotal, vtotal);
928
929 if (var->pixclock) {
930 drate = 1000000000 / var->pixclock;
931 hrate = (drate * 1000) / htotal;
932 xgifb_info->refresh_rate = (unsigned int)(hrate * 2
933 / vtotal);
934 } else {
935 xgifb_info->refresh_rate = 60;
936 }
937
938 pr_debug("Change mode to %dx%dx%d-%dHz\n",
939 var->xres, var->yres, var->bits_per_pixel,
940 xgifb_info->refresh_rate);
941
942 old_mode = xgifb_info->mode_idx;
943 xgifb_info->mode_idx = 0;
944
945 while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
946 (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
947 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
948 (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
949 (XGIbios_mode[xgifb_info->mode_idx].bpp
950 == var->bits_per_pixel)) {
951 found_mode = 1;
952 break;
953 }
954 xgifb_info->mode_idx++;
955 }
956
957 if (found_mode)
958 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
959 xgifb_info->mode_idx);
960 else
961 xgifb_info->mode_idx = -1;
962
963 if (xgifb_info->mode_idx < 0) {
964 pr_err("Mode %dx%dx%d not supported\n",
965 var->xres, var->yres, var->bits_per_pixel);
966 xgifb_info->mode_idx = old_mode;
967 return -EINVAL;
968 }
969
970 if (XGIfb_search_refresh_rate(xgifb_info,
971 xgifb_info->refresh_rate) == 0) {
972 xgifb_info->rate_idx = 1;
973 xgifb_info->refresh_rate = 60;
974 }
975
976 if (isactive) {
977 XGIfb_pre_setmode(xgifb_info);
978 if (XGISetModeNew(xgifb_info, hw_info,
979 XGIbios_mode[xgifb_info->mode_idx].mode_no)
980 == 0) {
981 pr_err("Setting mode[0x%x] failed\n",
982 XGIbios_mode[xgifb_info->mode_idx].mode_no);
983 return -EINVAL;
984 }
985 info->fix.line_length = (info->var.xres_virtual
986 * info->var.bits_per_pixel) >> 6;
987
988 xgifb_reg_set(vb->P3c4, IND_SIS_PASSWORD, SIS_PASSWORD);
989
990 xgifb_reg_set(vb->P3d4, 0x13, (info->fix.line_length & 0x00ff));
991 xgifb_reg_set(vb->P3c4, 0x0E,
992 (info->fix.line_length & 0xff00) >> 8);
993
994 XGIfb_post_setmode(xgifb_info);
995
996 pr_debug("Set new mode: %dx%dx%d-%d\n",
997 XGIbios_mode[xgifb_info->mode_idx].xres,
998 XGIbios_mode[xgifb_info->mode_idx].yres,
999 XGIbios_mode[xgifb_info->mode_idx].bpp,
1000 xgifb_info->refresh_rate);
1001
1002 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1003 xgifb_info->video_vwidth = info->var.xres_virtual;
1004 xgifb_info->video_width =
1005 XGIbios_mode[xgifb_info->mode_idx].xres;
1006 xgifb_info->video_vheight = info->var.yres_virtual;
1007 xgifb_info->video_height =
1008 XGIbios_mode[xgifb_info->mode_idx].yres;
1009 xgifb_info->org_x = 0;
1010 xgifb_info->org_y = 0;
1011 xgifb_info->video_linelength = info->var.xres_virtual
1012 * (xgifb_info->video_bpp >> 3);
1013 switch (xgifb_info->video_bpp) {
1014 case 8:
1015 xgifb_info->DstColor = 0x0000;
1016 xgifb_info->XGI310_AccelDepth = 0x00000000;
1017 xgifb_info->video_cmap_len = 256;
1018 #if defined(__BIG_ENDIAN)
1019 cr_data = xgifb_reg_get(vb->P3d4, 0x4D);
1020 xgifb_reg_set(vb->P3d4, 0x4D, (cr_data & 0xE0));
1021 #endif
1022 break;
1023 case 16:
1024 xgifb_info->DstColor = 0x8000;
1025 xgifb_info->XGI310_AccelDepth = 0x00010000;
1026 #if defined(__BIG_ENDIAN)
1027 cr_data = xgifb_reg_get(vb->P3d4, 0x4D);
1028 xgifb_reg_set(vb->P3d4, 0x4D, ((cr_data & 0xE0) | 0x0B));
1029 #endif
1030 xgifb_info->video_cmap_len = 16;
1031 break;
1032 case 32:
1033 xgifb_info->DstColor = 0xC000;
1034 xgifb_info->XGI310_AccelDepth = 0x00020000;
1035 xgifb_info->video_cmap_len = 16;
1036 #if defined(__BIG_ENDIAN)
1037 cr_data = xgifb_reg_get(vb->P3d4, 0x4D);
1038 xgifb_reg_set(vb->P3d4, 0x4D, ((cr_data & 0xE0) | 0x15));
1039 #endif
1040 break;
1041 default:
1042 xgifb_info->video_cmap_len = 16;
1043 pr_err("Unsupported depth %d\n",
1044 xgifb_info->video_bpp);
1045 break;
1046 }
1047 }
1048 XGIfb_bpp_to_var(xgifb_info, var); /* update ARGB info */
1049
1050 dumpVGAReg(xgifb_info);
1051 return 0;
1052 }
1053
XGIfb_pan_var(struct fb_var_screeninfo * var,struct fb_info * info)1054 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1055 {
1056 struct xgifb_video_info *xgifb_info = info->par;
1057 struct vb_device_info *vb = &xgifb_info->dev_info;
1058 unsigned int base;
1059
1060 base = var->yoffset * info->var.xres_virtual + var->xoffset;
1061
1062 /* calculate base bpp dep. */
1063 switch (info->var.bits_per_pixel) {
1064 case 16:
1065 base >>= 1;
1066 break;
1067 case 32:
1068 break;
1069 case 8:
1070 default:
1071 base >>= 2;
1072 break;
1073 }
1074
1075 xgifb_reg_set(vb->P3c4, IND_SIS_PASSWORD, SIS_PASSWORD);
1076
1077 xgifb_reg_set(vb->P3d4, 0x0D, base & 0xFF);
1078 xgifb_reg_set(vb->P3d4, 0x0C, (base >> 8) & 0xFF);
1079 xgifb_reg_set(vb->P3c4, 0x0D, (base >> 16) & 0xFF);
1080 xgifb_reg_set(vb->P3c4, 0x37, (base >> 24) & 0x03);
1081 xgifb_reg_and_or(vb->P3c4, 0x37, 0xDF, (base >> 21) & 0x04);
1082
1083 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1084 xgifb_reg_or(vb->Part1Port, SIS_CRT2_WENABLE_315, 0x01);
1085 xgifb_reg_set(vb->Part1Port, 0x06, (base & 0xFF));
1086 xgifb_reg_set(vb->Part1Port, 0x05, ((base >> 8) & 0xFF));
1087 xgifb_reg_set(vb->Part1Port, 0x04, ((base >> 16) & 0xFF));
1088 xgifb_reg_and_or(vb->Part1Port, 0x02, 0x7F,
1089 ((base >> 24) & 0x01) << 7);
1090 }
1091 return 0;
1092 }
1093
XGIfb_open(struct fb_info * info,int user)1094 static int XGIfb_open(struct fb_info *info, int user)
1095 {
1096 return 0;
1097 }
1098
XGIfb_release(struct fb_info * info,int user)1099 static int XGIfb_release(struct fb_info *info, int user)
1100 {
1101 return 0;
1102 }
1103
1104 /* similar to sisfb_get_cmap_len */
XGIfb_get_cmap_len(const struct fb_var_screeninfo * var)1105 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1106 {
1107 return (var->bits_per_pixel == 8) ? 256 : 16;
1108 }
1109
XGIfb_setcolreg(unsigned int regno,unsigned int red,unsigned int green,unsigned int blue,unsigned int transp,struct fb_info * info)1110 static int XGIfb_setcolreg(unsigned int regno, unsigned int red,
1111 unsigned int green, unsigned int blue,
1112 unsigned int transp, struct fb_info *info)
1113 {
1114 struct xgifb_video_info *xgifb_info = info->par;
1115 struct vb_device_info *vb = &xgifb_info->dev_info;
1116
1117 if (regno >= XGIfb_get_cmap_len(&info->var))
1118 return 1;
1119
1120 switch (info->var.bits_per_pixel) {
1121 case 8:
1122 outb(regno, vb->P3c8);
1123 outb((red >> 10), vb->P3c9);
1124 outb((green >> 10), vb->P3c9);
1125 outb((blue >> 10), vb->P3c9);
1126 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1127 outb(regno, vb->Part5Port);
1128 outb((red >> 8), (vb->Part5Port + 1));
1129 outb((green >> 8), (vb->Part5Port + 1));
1130 outb((blue >> 8), (vb->Part5Port + 1));
1131 }
1132 break;
1133 case 16:
1134 ((u32 *)(info->pseudo_palette))[regno] = ((red & 0xf800))
1135 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1136 >> 11);
1137 break;
1138 case 32:
1139 red >>= 8;
1140 green >>= 8;
1141 blue >>= 8;
1142 ((u32 *)(info->pseudo_palette))[regno] = (red << 16) | (green
1143 << 8) | (blue);
1144 break;
1145 }
1146 return 0;
1147 }
1148
1149 /* ----------- FBDev related routines for all series ---------- */
1150
XGIfb_get_fix(struct fb_fix_screeninfo * fix,int con,struct fb_info * info)1151 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1152 struct fb_info *info)
1153 {
1154 struct xgifb_video_info *xgifb_info = info->par;
1155
1156 memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1157
1158 strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1159
1160 /* if register_framebuffer has been called, we must lock */
1161 if (atomic_read(&info->count))
1162 mutex_lock(&info->mm_lock);
1163
1164 fix->smem_start = xgifb_info->video_base;
1165 fix->smem_len = xgifb_info->video_size;
1166
1167 /* if register_framebuffer has been called, we can unlock */
1168 if (atomic_read(&info->count))
1169 mutex_unlock(&info->mm_lock);
1170
1171 fix->type = FB_TYPE_PACKED_PIXELS;
1172 fix->type_aux = 0;
1173 if (xgifb_info->video_bpp == 8)
1174 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1175 else
1176 fix->visual = FB_VISUAL_DIRECTCOLOR;
1177 fix->xpanstep = 0;
1178 if (XGIfb_ypan)
1179 fix->ypanstep = 1;
1180 fix->ywrapstep = 0;
1181 fix->line_length = xgifb_info->video_linelength;
1182 fix->mmio_start = xgifb_info->mmio_base;
1183 fix->mmio_len = xgifb_info->mmio_size;
1184 fix->accel = FB_ACCEL_SIS_XABRE;
1185
1186 return 0;
1187 }
1188
XGIfb_set_par(struct fb_info * info)1189 static int XGIfb_set_par(struct fb_info *info)
1190 {
1191 int err;
1192
1193 err = XGIfb_do_set_var(&info->var, 1, info);
1194 if (err)
1195 return err;
1196 XGIfb_get_fix(&info->fix, -1, info);
1197 return 0;
1198 }
1199
XGIfb_check_var(struct fb_var_screeninfo * var,struct fb_info * info)1200 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1201 {
1202 struct xgifb_video_info *xgifb_info = info->par;
1203 unsigned int htotal = var->left_margin + var->xres + var->right_margin
1204 + var->hsync_len;
1205 unsigned int vtotal = 0;
1206 unsigned int drate = 0, hrate = 0;
1207 int found_mode = 0;
1208 int search_idx;
1209
1210 if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1211 vtotal = var->upper_margin + var->yres + var->lower_margin
1212 + var->vsync_len;
1213 vtotal <<= 1;
1214 } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1215 vtotal = var->upper_margin + var->yres + var->lower_margin
1216 + var->vsync_len;
1217 vtotal <<= 2;
1218 } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1219 vtotal = var->upper_margin + (var->yres / 2)
1220 + var->lower_margin + var->vsync_len;
1221 } else
1222 vtotal = var->upper_margin + var->yres + var->lower_margin
1223 + var->vsync_len;
1224
1225 if (!(htotal) || !(vtotal)) {
1226 pr_debug("No valid timing data\n");
1227 return -EINVAL;
1228 }
1229
1230 if (var->pixclock && htotal && vtotal) {
1231 drate = 1000000000 / var->pixclock;
1232 hrate = (drate * 1000) / htotal;
1233 xgifb_info->refresh_rate =
1234 (unsigned int)(hrate * 2 / vtotal);
1235 pr_debug(
1236 "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1237 "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1238 __func__, var->pixclock, htotal, vtotal,
1239 __func__, drate, hrate, xgifb_info->refresh_rate);
1240 } else {
1241 xgifb_info->refresh_rate = 60;
1242 }
1243
1244 search_idx = 0;
1245 while ((XGIbios_mode[search_idx].mode_no != 0) &&
1246 (XGIbios_mode[search_idx].xres <= var->xres)) {
1247 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1248 (XGIbios_mode[search_idx].yres == var->yres) &&
1249 (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1250 if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1251 found_mode = 1;
1252 break;
1253 }
1254 }
1255 search_idx++;
1256 }
1257
1258 if (!found_mode) {
1259 pr_err("%dx%dx%d is no valid mode\n",
1260 var->xres, var->yres, var->bits_per_pixel);
1261 search_idx = 0;
1262 while (XGIbios_mode[search_idx].mode_no != 0) {
1263 if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1264 (var->yres <= XGIbios_mode[search_idx].yres) &&
1265 (var->bits_per_pixel ==
1266 XGIbios_mode[search_idx].bpp)) {
1267 if (XGIfb_validate_mode(xgifb_info,
1268 search_idx) > 0) {
1269 found_mode = 1;
1270 break;
1271 }
1272 }
1273 search_idx++;
1274 }
1275 if (found_mode) {
1276 var->xres = XGIbios_mode[search_idx].xres;
1277 var->yres = XGIbios_mode[search_idx].yres;
1278 pr_debug("Adapted to mode %dx%dx%d\n",
1279 var->xres, var->yres, var->bits_per_pixel);
1280
1281 } else {
1282 pr_err("Failed to find similar mode to %dx%dx%d\n",
1283 var->xres, var->yres, var->bits_per_pixel);
1284 return -EINVAL;
1285 }
1286 }
1287
1288 /* Adapt RGB settings */
1289 XGIfb_bpp_to_var(xgifb_info, var);
1290
1291 if (!XGIfb_ypan) {
1292 if (var->xres != var->xres_virtual)
1293 var->xres_virtual = var->xres;
1294 if (var->yres != var->yres_virtual)
1295 var->yres_virtual = var->yres;
1296 }
1297
1298 /* Truncate offsets to maximum if too high */
1299 if (var->xoffset > var->xres_virtual - var->xres)
1300 var->xoffset = var->xres_virtual - var->xres - 1;
1301
1302 if (var->yoffset > var->yres_virtual - var->yres)
1303 var->yoffset = var->yres_virtual - var->yres - 1;
1304
1305 /* Set everything else to 0 */
1306 var->red.msb_right = 0;
1307 var->green.msb_right = 0;
1308 var->blue.msb_right = 0;
1309 var->transp.offset = 0;
1310 var->transp.length = 0;
1311 var->transp.msb_right = 0;
1312
1313 return 0;
1314 }
1315
XGIfb_pan_display(struct fb_var_screeninfo * var,struct fb_info * info)1316 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1317 struct fb_info *info)
1318 {
1319 int err;
1320
1321 if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1322 return -EINVAL;
1323 if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1324 return -EINVAL;
1325
1326 if (var->vmode & FB_VMODE_YWRAP) {
1327 if (var->yoffset >= info->var.yres_virtual || var->xoffset)
1328 return -EINVAL;
1329 } else if (var->xoffset + info->var.xres > info->var.xres_virtual ||
1330 var->yoffset + info->var.yres > info->var.yres_virtual) {
1331 return -EINVAL;
1332 }
1333 err = XGIfb_pan_var(var, info);
1334 if (err < 0)
1335 return err;
1336
1337 info->var.xoffset = var->xoffset;
1338 info->var.yoffset = var->yoffset;
1339 if (var->vmode & FB_VMODE_YWRAP)
1340 info->var.vmode |= FB_VMODE_YWRAP;
1341 else
1342 info->var.vmode &= ~FB_VMODE_YWRAP;
1343
1344 return 0;
1345 }
1346
XGIfb_blank(int blank,struct fb_info * info)1347 static int XGIfb_blank(int blank, struct fb_info *info)
1348 {
1349 struct xgifb_video_info *xgifb_info = info->par;
1350 struct vb_device_info *vb = &xgifb_info->dev_info;
1351 u8 reg;
1352
1353 reg = xgifb_reg_get(vb->P3d4, 0x17);
1354
1355 if (blank > 0)
1356 reg &= 0x7f;
1357 else
1358 reg |= 0x80;
1359
1360 xgifb_reg_set(vb->P3d4, 0x17, reg);
1361 xgifb_reg_set(vb->P3c4, 0x00, 0x01); /* Synchronous Reset */
1362 xgifb_reg_set(vb->P3c4, 0x00, 0x03); /* End Reset */
1363 return 0;
1364 }
1365
1366 static struct fb_ops XGIfb_ops = {
1367 .owner = THIS_MODULE,
1368 .fb_open = XGIfb_open,
1369 .fb_release = XGIfb_release,
1370 .fb_check_var = XGIfb_check_var,
1371 .fb_set_par = XGIfb_set_par,
1372 .fb_setcolreg = XGIfb_setcolreg,
1373 .fb_pan_display = XGIfb_pan_display,
1374 .fb_blank = XGIfb_blank,
1375 .fb_fillrect = cfb_fillrect,
1376 .fb_copyarea = cfb_copyarea,
1377 .fb_imageblit = cfb_imageblit,
1378 };
1379
1380 /* ---------------- Chip generation dependent routines ---------------- */
1381
1382 /* for XGI 315/550/650/740/330 */
1383
XGIfb_get_dram_size(struct xgifb_video_info * xgifb_info)1384 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1385 {
1386 struct vb_device_info *vb = &xgifb_info->dev_info;
1387 u8 ChannelNum, tmp;
1388 u8 reg = 0;
1389
1390 /* xorg driver sets 32MB * 1 channel */
1391 if (xgifb_info->chip == XG27)
1392 xgifb_reg_set(vb->P3c4, IND_SIS_DRAM_SIZE, 0x51);
1393
1394 reg = xgifb_reg_get(vb->P3c4, IND_SIS_DRAM_SIZE);
1395 if (!reg)
1396 return -1;
1397
1398 switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1399 case XGI_DRAM_SIZE_1MB:
1400 xgifb_info->video_size = 0x100000;
1401 break;
1402 case XGI_DRAM_SIZE_2MB:
1403 xgifb_info->video_size = 0x200000;
1404 break;
1405 case XGI_DRAM_SIZE_4MB:
1406 xgifb_info->video_size = 0x400000;
1407 break;
1408 case XGI_DRAM_SIZE_8MB:
1409 xgifb_info->video_size = 0x800000;
1410 break;
1411 case XGI_DRAM_SIZE_16MB:
1412 xgifb_info->video_size = 0x1000000;
1413 break;
1414 case XGI_DRAM_SIZE_32MB:
1415 xgifb_info->video_size = 0x2000000;
1416 break;
1417 case XGI_DRAM_SIZE_64MB:
1418 xgifb_info->video_size = 0x4000000;
1419 break;
1420 case XGI_DRAM_SIZE_128MB:
1421 xgifb_info->video_size = 0x8000000;
1422 break;
1423 case XGI_DRAM_SIZE_256MB:
1424 xgifb_info->video_size = 0x10000000;
1425 break;
1426 default:
1427 return -1;
1428 }
1429
1430 tmp = (reg & 0x0c) >> 2;
1431 switch (xgifb_info->chip) {
1432 case XG20:
1433 case XG21:
1434 case XG27:
1435 ChannelNum = 1;
1436 break;
1437
1438 case XG42:
1439 if (reg & 0x04)
1440 ChannelNum = 2;
1441 else
1442 ChannelNum = 1;
1443 break;
1444
1445 case XG40:
1446 default:
1447 if (tmp == 2)
1448 ChannelNum = 2;
1449 else if (tmp == 3)
1450 ChannelNum = 3;
1451 else
1452 ChannelNum = 1;
1453 break;
1454 }
1455
1456 xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1457
1458 pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1459 reg, xgifb_info->video_size, ChannelNum);
1460 return 0;
1461 }
1462
XGIfb_detect_VB(struct xgifb_video_info * xgifb_info)1463 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1464 {
1465 struct vb_device_info *vb = &xgifb_info->dev_info;
1466 u8 cr32, temp = 0;
1467
1468 xgifb_info->TV_plug = 0;
1469 xgifb_info->TV_type = 0;
1470
1471 cr32 = xgifb_reg_get(vb->P3d4, IND_XGI_SCRATCH_REG_CR32);
1472
1473 if ((cr32 & SIS_CRT1) && !XGIfb_crt1off) {
1474 XGIfb_crt1off = 0;
1475 } else {
1476 if (cr32 & 0x5F)
1477 XGIfb_crt1off = 1;
1478 else
1479 XGIfb_crt1off = 0;
1480 }
1481
1482 if (!xgifb_info->display2_force) {
1483 if (cr32 & SIS_VB_TV)
1484 xgifb_info->display2 = XGIFB_DISP_TV;
1485 else if (cr32 & SIS_VB_LCD)
1486 xgifb_info->display2 = XGIFB_DISP_LCD;
1487 else if (cr32 & SIS_VB_CRT2)
1488 xgifb_info->display2 = XGIFB_DISP_CRT;
1489 else
1490 xgifb_info->display2 = XGIFB_DISP_NONE;
1491 }
1492
1493 if (XGIfb_tvplug != -1) {
1494 /* Override with option */
1495 xgifb_info->TV_plug = XGIfb_tvplug;
1496 } else if (cr32 & SIS_VB_HIVISION) {
1497 xgifb_info->TV_type = TVMODE_HIVISION;
1498 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1499 } else if (cr32 & SIS_VB_SVIDEO) {
1500 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1501 } else if (cr32 & SIS_VB_COMPOSITE) {
1502 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1503 } else if (cr32 & SIS_VB_SCART) {
1504 xgifb_info->TV_plug = TVPLUG_SCART;
1505 }
1506
1507 if (xgifb_info->TV_type == 0) {
1508 temp = xgifb_reg_get(vb->P3d4, 0x38);
1509 if (temp & 0x10)
1510 xgifb_info->TV_type = TVMODE_PAL;
1511 else
1512 xgifb_info->TV_type = TVMODE_NTSC;
1513 }
1514
1515 /* Copy forceCRT1 option to CRT1off if option is given */
1516 if (XGIfb_forcecrt1 != -1) {
1517 if (XGIfb_forcecrt1)
1518 XGIfb_crt1off = 0;
1519 else
1520 XGIfb_crt1off = 1;
1521 }
1522 }
1523
XGIfb_has_VB(struct xgifb_video_info * xgifb_info)1524 static bool XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1525 {
1526 u8 vb_chipid;
1527
1528 vb_chipid = xgifb_reg_get(xgifb_info->dev_info.Part4Port, 0x00);
1529 switch (vb_chipid) {
1530 case 0x01:
1531 xgifb_info->hasVB = HASVB_301;
1532 break;
1533 case 0x02:
1534 xgifb_info->hasVB = HASVB_302;
1535 break;
1536 default:
1537 xgifb_info->hasVB = HASVB_NONE;
1538 return false;
1539 }
1540 return true;
1541 }
1542
XGIfb_get_VB_type(struct xgifb_video_info * xgifb_info)1543 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1544 {
1545 u8 reg;
1546
1547 if (!XGIfb_has_VB(xgifb_info)) {
1548 reg = xgifb_reg_get(xgifb_info->dev_info.P3d4,
1549 IND_XGI_SCRATCH_REG_CR37);
1550 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1551 case SIS_EXTERNAL_CHIP_LVDS:
1552 xgifb_info->hasVB = HASVB_LVDS;
1553 break;
1554 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1555 xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1556 break;
1557 default:
1558 break;
1559 }
1560 }
1561 }
1562
xgifb_optval(char * fullopt,int validx)1563 static int __init xgifb_optval(char *fullopt, int validx)
1564 {
1565 unsigned long lres;
1566
1567 if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1568 pr_err("Invalid value for option: %s\n", fullopt);
1569 return 0;
1570 }
1571 return lres;
1572 }
1573
XGIfb_setup(char * options)1574 static int __init XGIfb_setup(char *options)
1575 {
1576 char *this_opt;
1577
1578 if (!options || !*options)
1579 return 0;
1580
1581 pr_info("Options: %s\n", options);
1582
1583 while ((this_opt = strsep(&options, ",")) != NULL) {
1584 if (!*this_opt)
1585 continue;
1586
1587 if (!strncmp(this_opt, "mode:", 5)) {
1588 mode = this_opt + 5;
1589 } else if (!strncmp(this_opt, "vesa:", 5)) {
1590 vesa = xgifb_optval(this_opt, 5);
1591 } else if (!strncmp(this_opt, "vrate:", 6)) {
1592 refresh_rate = xgifb_optval(this_opt, 6);
1593 } else if (!strncmp(this_opt, "rate:", 5)) {
1594 refresh_rate = xgifb_optval(this_opt, 5);
1595 } else if (!strncmp(this_opt, "crt1off", 7)) {
1596 XGIfb_crt1off = 1;
1597 } else if (!strncmp(this_opt, "filter:", 7)) {
1598 filter = xgifb_optval(this_opt, 7);
1599 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1600 XGIfb_search_crt2type(this_opt + 14);
1601 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1602 XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1603 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1604 XGIfb_search_tvstd(this_opt + 7);
1605 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1606 XGIfb_search_tvstd(this_opt + 7);
1607 } else if (!strncmp(this_opt, "dstn", 4)) {
1608 enable_dstn = 1;
1609 /* DSTN overrules forcecrt2type */
1610 XGIfb_crt2type = XGIFB_DISP_LCD;
1611 } else if (!strncmp(this_opt, "noypan", 6)) {
1612 XGIfb_ypan = 0;
1613 } else {
1614 mode = this_opt;
1615 }
1616 }
1617 return 0;
1618 }
1619
xgifb_probe(struct pci_dev * pdev,const struct pci_device_id * ent)1620 static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1621 {
1622 u8 reg, reg1;
1623 u8 CR48, CR38;
1624 int ret;
1625 struct fb_info *fb_info;
1626 struct xgifb_video_info *xgifb_info;
1627 struct vb_device_info *vb;
1628 struct xgi_hw_device_info *hw_info;
1629 unsigned long video_size_max;
1630
1631 fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1632 if (!fb_info)
1633 return -ENOMEM;
1634
1635 xgifb_info = fb_info->par;
1636 vb = &xgifb_info->dev_info;
1637 hw_info = &xgifb_info->hw_info;
1638 xgifb_info->fb_info = fb_info;
1639 xgifb_info->chip_id = pdev->device;
1640 pci_read_config_byte(pdev,
1641 PCI_REVISION_ID,
1642 &xgifb_info->revision_id);
1643 hw_info->jChipRevision = xgifb_info->revision_id;
1644
1645 xgifb_info->pcibus = pdev->bus->number;
1646 xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1647 xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1648 xgifb_info->subsysvendor = pdev->subsystem_vendor;
1649 xgifb_info->subsysdevice = pdev->subsystem_device;
1650
1651 video_size_max = pci_resource_len(pdev, 0);
1652 xgifb_info->video_base = pci_resource_start(pdev, 0);
1653 xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1654 xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1655 xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1656 dev_info(&pdev->dev, "Relocate IO address: %llx [%08lx]\n",
1657 (u64)pci_resource_start(pdev, 2),
1658 xgifb_info->vga_base);
1659
1660 if (pci_enable_device(pdev)) {
1661 ret = -EIO;
1662 goto error;
1663 }
1664
1665 if (XGIfb_crt2type != -1) {
1666 xgifb_info->display2 = XGIfb_crt2type;
1667 xgifb_info->display2_force = true;
1668 }
1669
1670 XGIRegInit(vb, xgifb_info->vga_base);
1671
1672 xgifb_reg_set(vb->P3c4,
1673 IND_SIS_PASSWORD, SIS_PASSWORD);
1674 reg1 = xgifb_reg_get(vb->P3c4, IND_SIS_PASSWORD);
1675
1676 if (reg1 != 0xa1) { /* I/O error */
1677 dev_err(&pdev->dev, "I/O error\n");
1678 ret = -EIO;
1679 goto error_disable;
1680 }
1681
1682 switch (xgifb_info->chip_id) {
1683 case PCI_DEVICE_ID_XGI_20:
1684 xgifb_reg_or(vb->P3d4,
1685 Index_CR_GPIO_Reg3, GPIOG_EN);
1686 CR48 = xgifb_reg_get(vb->P3d4,
1687 Index_CR_GPIO_Reg1);
1688 if (CR48 & GPIOG_READ)
1689 xgifb_info->chip = XG21;
1690 else
1691 xgifb_info->chip = XG20;
1692 break;
1693 case PCI_DEVICE_ID_XGI_40:
1694 xgifb_info->chip = XG40;
1695 break;
1696 case PCI_DEVICE_ID_XGI_42:
1697 xgifb_info->chip = XG42;
1698 break;
1699 case PCI_DEVICE_ID_XGI_27:
1700 xgifb_info->chip = XG27;
1701 break;
1702 default:
1703 ret = -ENODEV;
1704 goto error_disable;
1705 }
1706
1707 dev_info(&pdev->dev, "chipid = %x\n", xgifb_info->chip);
1708 hw_info->jChipType = xgifb_info->chip;
1709
1710 if (XGIfb_get_dram_size(xgifb_info)) {
1711 xgifb_info->video_size = min_t(unsigned long, video_size_max,
1712 SZ_16M);
1713 } else if (xgifb_info->video_size > video_size_max) {
1714 xgifb_info->video_size = video_size_max;
1715 }
1716
1717 /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE */
1718 xgifb_reg_or(vb->P3c4,
1719 IND_SIS_PCI_ADDRESS_SET,
1720 (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1721 /* Enable 2D accelerator engine */
1722 xgifb_reg_or(vb->P3c4,
1723 IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1724
1725 hw_info->ulVideoMemorySize = xgifb_info->video_size;
1726
1727 if (!request_mem_region(xgifb_info->video_base,
1728 xgifb_info->video_size,
1729 "XGIfb FB")) {
1730 dev_err(&pdev->dev, "Unable request memory size %x\n",
1731 xgifb_info->video_size);
1732 dev_err(&pdev->dev,
1733 "Fatal error: Unable to reserve frame buffer memory. Is there another framebuffer driver active?\n");
1734 ret = -ENODEV;
1735 goto error_disable;
1736 }
1737
1738 if (!request_mem_region(xgifb_info->mmio_base,
1739 xgifb_info->mmio_size,
1740 "XGIfb MMIO")) {
1741 dev_err(&pdev->dev,
1742 "Fatal error: Unable to reserve MMIO region\n");
1743 ret = -ENODEV;
1744 goto error_0;
1745 }
1746
1747 xgifb_info->video_vbase =
1748 ioremap_wc(xgifb_info->video_base, xgifb_info->video_size);
1749 hw_info->pjVideoMemoryAddress =
1750 ioremap_wc(xgifb_info->video_base, xgifb_info->video_size);
1751 xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1752 xgifb_info->mmio_size);
1753
1754 dev_info(&pdev->dev,
1755 "Framebuffer at 0x%llx, mapped to 0x%p, size %dk\n",
1756 (u64)xgifb_info->video_base,
1757 xgifb_info->video_vbase,
1758 xgifb_info->video_size / 1024);
1759
1760 dev_info(&pdev->dev,
1761 "MMIO at 0x%llx, mapped to 0x%p, size %ldk\n",
1762 (u64)xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1763 xgifb_info->mmio_size / 1024);
1764
1765 pci_set_drvdata(pdev, xgifb_info);
1766 if (!XGIInitNew(pdev))
1767 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1768
1769 xgifb_info->mtrr = -1;
1770
1771 xgifb_info->hasVB = HASVB_NONE;
1772 if ((xgifb_info->chip == XG20) ||
1773 (xgifb_info->chip == XG27)) {
1774 xgifb_info->hasVB = HASVB_NONE;
1775 } else if (xgifb_info->chip == XG21) {
1776 CR38 = xgifb_reg_get(vb->P3d4, 0x38);
1777 if ((CR38 & 0xE0) == 0xC0)
1778 xgifb_info->display2 = XGIFB_DISP_LCD;
1779 else if ((CR38 & 0xE0) == 0x60)
1780 xgifb_info->hasVB = HASVB_CHRONTEL;
1781 else
1782 xgifb_info->hasVB = HASVB_NONE;
1783 } else {
1784 XGIfb_get_VB_type(xgifb_info);
1785 }
1786
1787 hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1788
1789 hw_info->ulExternalChip = 0;
1790
1791 switch (xgifb_info->hasVB) {
1792 case HASVB_301:
1793 reg = xgifb_reg_get(vb->Part4Port, 0x01);
1794 if (reg >= 0xE0) {
1795 hw_info->ujVBChipID = VB_CHIP_302LV;
1796 dev_info(&pdev->dev,
1797 "XGI302LV bridge detected (revision 0x%02x)\n",
1798 reg);
1799 } else if (reg >= 0xD0) {
1800 hw_info->ujVBChipID = VB_CHIP_301LV;
1801 dev_info(&pdev->dev,
1802 "XGI301LV bridge detected (revision 0x%02x)\n",
1803 reg);
1804 } else {
1805 hw_info->ujVBChipID = VB_CHIP_301;
1806 dev_info(&pdev->dev, "XGI301 bridge detected\n");
1807 }
1808 break;
1809 case HASVB_302:
1810 reg = xgifb_reg_get(vb->Part4Port, 0x01);
1811 if (reg >= 0xE0) {
1812 hw_info->ujVBChipID = VB_CHIP_302LV;
1813 dev_info(&pdev->dev,
1814 "XGI302LV bridge detected (revision 0x%02x)\n",
1815 reg);
1816 } else if (reg >= 0xD0) {
1817 hw_info->ujVBChipID = VB_CHIP_301LV;
1818 dev_info(&pdev->dev,
1819 "XGI302LV bridge detected (revision 0x%02x)\n",
1820 reg);
1821 } else if (reg >= 0xB0) {
1822 reg1 = xgifb_reg_get(vb->Part4Port,
1823 0x23);
1824
1825 hw_info->ujVBChipID = VB_CHIP_302B;
1826
1827 } else {
1828 hw_info->ujVBChipID = VB_CHIP_302;
1829 dev_info(&pdev->dev, "XGI302 bridge detected\n");
1830 }
1831 break;
1832 case HASVB_LVDS:
1833 hw_info->ulExternalChip = 0x1;
1834 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1835 break;
1836 case HASVB_TRUMPION:
1837 hw_info->ulExternalChip = 0x2;
1838 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1839 break;
1840 case HASVB_CHRONTEL:
1841 hw_info->ulExternalChip = 0x4;
1842 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1843 break;
1844 case HASVB_LVDS_CHRONTEL:
1845 hw_info->ulExternalChip = 0x5;
1846 dev_info(&pdev->dev,
1847 "LVDS transmitter and Chrontel TV encoder detected\n");
1848 break;
1849 default:
1850 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1851 break;
1852 }
1853
1854 if (xgifb_info->hasVB != HASVB_NONE)
1855 XGIfb_detect_VB(xgifb_info);
1856 else if (xgifb_info->chip != XG21)
1857 xgifb_info->display2 = XGIFB_DISP_NONE;
1858
1859 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1860 if (!enable_dstn) {
1861 reg = xgifb_reg_get(vb->P3d4,
1862 IND_XGI_LCD_PANEL);
1863 reg &= 0x0f;
1864 hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1865 }
1866 }
1867
1868 xgifb_info->mode_idx = -1;
1869
1870 if (mode)
1871 XGIfb_search_mode(xgifb_info, mode);
1872 else if (vesa != -1)
1873 XGIfb_search_vesamode(xgifb_info, vesa);
1874
1875 if (xgifb_info->mode_idx >= 0)
1876 xgifb_info->mode_idx =
1877 XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1878
1879 if (xgifb_info->mode_idx < 0) {
1880 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1881 xgifb_info->chip == XG21)
1882 xgifb_info->mode_idx =
1883 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1884 else
1885 xgifb_info->mode_idx = DEFAULT_MODE;
1886 }
1887
1888 if (xgifb_info->mode_idx < 0) {
1889 dev_err(&pdev->dev, "No supported video mode found\n");
1890 ret = -EINVAL;
1891 goto error_1;
1892 }
1893
1894 /* set default refresh rate */
1895 xgifb_info->refresh_rate = refresh_rate;
1896 if (xgifb_info->refresh_rate == 0)
1897 xgifb_info->refresh_rate = 60;
1898 if (XGIfb_search_refresh_rate(xgifb_info, xgifb_info->refresh_rate) == 0) {
1899 xgifb_info->rate_idx = 1;
1900 xgifb_info->refresh_rate = 60;
1901 }
1902
1903 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1904 xgifb_info->video_vwidth =
1905 xgifb_info->video_width =
1906 XGIbios_mode[xgifb_info->mode_idx].xres;
1907 xgifb_info->video_vheight =
1908 xgifb_info->video_height =
1909 XGIbios_mode[xgifb_info->mode_idx].yres;
1910 xgifb_info->org_x = 0;
1911 xgifb_info->org_y = 0;
1912 xgifb_info->video_linelength =
1913 xgifb_info->video_width *
1914 (xgifb_info->video_bpp >> 3);
1915 switch (xgifb_info->video_bpp) {
1916 case 8:
1917 xgifb_info->DstColor = 0x0000;
1918 xgifb_info->XGI310_AccelDepth = 0x00000000;
1919 xgifb_info->video_cmap_len = 256;
1920 break;
1921 case 16:
1922 xgifb_info->DstColor = 0x8000;
1923 xgifb_info->XGI310_AccelDepth = 0x00010000;
1924 xgifb_info->video_cmap_len = 16;
1925 break;
1926 case 32:
1927 xgifb_info->DstColor = 0xC000;
1928 xgifb_info->XGI310_AccelDepth = 0x00020000;
1929 xgifb_info->video_cmap_len = 16;
1930 break;
1931 default:
1932 xgifb_info->video_cmap_len = 16;
1933 pr_info("Unsupported depth %d\n",
1934 xgifb_info->video_bpp);
1935 break;
1936 }
1937
1938 pr_info("Default mode is %dx%dx%d (%dHz)\n",
1939 xgifb_info->video_width, xgifb_info->video_height,
1940 xgifb_info->video_bpp, xgifb_info->refresh_rate);
1941
1942 fb_info->var.red.length = 8;
1943 fb_info->var.green.length = 8;
1944 fb_info->var.blue.length = 8;
1945 fb_info->var.activate = FB_ACTIVATE_NOW;
1946 fb_info->var.height = -1;
1947 fb_info->var.width = -1;
1948 fb_info->var.vmode = FB_VMODE_NONINTERLACED;
1949 fb_info->var.xres = xgifb_info->video_width;
1950 fb_info->var.xres_virtual = xgifb_info->video_width;
1951 fb_info->var.yres = xgifb_info->video_height;
1952 fb_info->var.yres_virtual = xgifb_info->video_height;
1953 fb_info->var.bits_per_pixel = xgifb_info->video_bpp;
1954
1955 XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
1956
1957 fb_info->var.pixclock = (u32)(1000000000 / XGIfb_mode_rate_to_dclock
1958 (vb, hw_info,
1959 XGIbios_mode[xgifb_info->mode_idx].mode_no));
1960
1961 if (XGIfb_mode_rate_to_ddata(vb, hw_info,
1962 XGIbios_mode[xgifb_info->mode_idx].mode_no,
1963 &fb_info->var.left_margin,
1964 &fb_info->var.right_margin,
1965 &fb_info->var.upper_margin,
1966 &fb_info->var.lower_margin,
1967 &fb_info->var.hsync_len,
1968 &fb_info->var.vsync_len,
1969 &fb_info->var.sync,
1970 &fb_info->var.vmode)) {
1971 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1972 FB_VMODE_INTERLACED) {
1973 fb_info->var.yres <<= 1;
1974 fb_info->var.yres_virtual <<= 1;
1975 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1976 FB_VMODE_DOUBLE) {
1977 fb_info->var.pixclock >>= 1;
1978 fb_info->var.yres >>= 1;
1979 fb_info->var.yres_virtual >>= 1;
1980 }
1981 }
1982
1983 fb_info->flags = FBINFO_FLAG_DEFAULT;
1984 fb_info->screen_base = xgifb_info->video_vbase;
1985 fb_info->fbops = &XGIfb_ops;
1986 XGIfb_get_fix(&fb_info->fix, -1, fb_info);
1987 fb_info->pseudo_palette = xgifb_info->pseudo_palette;
1988
1989 fb_alloc_cmap(&fb_info->cmap, 256, 0);
1990
1991 xgifb_info->mtrr = arch_phys_wc_add(xgifb_info->video_base,
1992 xgifb_info->video_size);
1993
1994 if (register_framebuffer(fb_info) < 0) {
1995 ret = -EINVAL;
1996 goto error_mtrr;
1997 }
1998
1999 dumpVGAReg(xgifb_info);
2000
2001 return 0;
2002
2003 error_mtrr:
2004 arch_phys_wc_del(xgifb_info->mtrr);
2005 error_1:
2006 iounmap(xgifb_info->mmio_vbase);
2007 iounmap(xgifb_info->video_vbase);
2008 release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2009 error_0:
2010 release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2011 error_disable:
2012 pci_disable_device(pdev);
2013 error:
2014 framebuffer_release(fb_info);
2015 return ret;
2016 }
2017
2018 /* -------------------- PCI DEVICE HANDLING -------------------- */
2019
xgifb_remove(struct pci_dev * pdev)2020 static void xgifb_remove(struct pci_dev *pdev)
2021 {
2022 struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2023 struct fb_info *fb_info = xgifb_info->fb_info;
2024
2025 unregister_framebuffer(fb_info);
2026 arch_phys_wc_del(xgifb_info->mtrr);
2027 iounmap(xgifb_info->mmio_vbase);
2028 iounmap(xgifb_info->video_vbase);
2029 release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2030 release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2031 pci_disable_device(pdev);
2032 framebuffer_release(fb_info);
2033 }
2034
2035 static struct pci_driver xgifb_driver = {
2036 .name = "xgifb",
2037 .id_table = xgifb_pci_table,
2038 .probe = xgifb_probe,
2039 .remove = xgifb_remove
2040 };
2041
2042 /* -------------------- MODULE -------------------- */
2043
2044 module_param(mode, charp, 0000);
2045 MODULE_PARM_DESC(mode,
2046 "Selects the desired default display mode in the format XxYxDepth (eg. 1024x768x16).");
2047
2048 module_param(forcecrt2type, charp, 0000);
2049 MODULE_PARM_DESC(forcecrt2type,
2050 "Force the second display output type. Possible values are NONE, LCD, TV, VGA, SVIDEO or COMPOSITE.");
2051
2052 module_param(vesa, int, 0000);
2053 MODULE_PARM_DESC(vesa,
2054 "Selects the desired default display mode by VESA mode number (eg. 0x117).");
2055
2056 module_param(filter, int, 0000);
2057 MODULE_PARM_DESC(filter,
2058 "Selects TV flicker filter type (only for systems with a SiS301 video bridge). Possible values 0-7. Default: [no filter]).");
2059
xgifb_init(void)2060 static int __init xgifb_init(void)
2061 {
2062 char *option = NULL;
2063
2064 if (forcecrt2type)
2065 XGIfb_search_crt2type(forcecrt2type);
2066 if (fb_get_options("xgifb", &option))
2067 return -ENODEV;
2068 XGIfb_setup(option);
2069
2070 return pci_register_driver(&xgifb_driver);
2071 }
2072
xgifb_remove_module(void)2073 static void __exit xgifb_remove_module(void)
2074 {
2075 pci_unregister_driver(&xgifb_driver);
2076 pr_debug("Module unloaded\n");
2077 }
2078
2079 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2080 MODULE_LICENSE("GPL");
2081 MODULE_AUTHOR("XGITECH , Others");
2082 module_init(xgifb_init);
2083 module_exit(xgifb_remove_module);
2084
