1 /*
2 * XG20, XG21, XG40, XG42 frame buffer device
3 * for Linux kernels 2.5.x, 2.6.x
4 * Base on TW's sis fbdev code.
5 */
6
7 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
8
9 #include <linux/sizes.h>
10 #include <linux/module.h>
11 #include <linux/pci.h>
12
13 #include "XGI_main.h"
14 #include "vb_init.h"
15 #include "vb_util.h"
16 #include "vb_setmode.h"
17
18 #define Index_CR_GPIO_Reg1 0x48
19 #define Index_CR_GPIO_Reg3 0x4a
20
21 #define GPIOG_EN BIT(6)
22 #define GPIOG_READ BIT(1)
23
24 static char *forcecrt2type;
25 static char *mode;
26 static int vesa = -1;
27 static unsigned int refresh_rate;
28
29 /* -------------------- Macro definitions ---------------------------- */
30
31 #ifdef DEBUG
dumpVGAReg(struct xgifb_video_info * xgifb_info)32 static void dumpVGAReg(struct xgifb_video_info *xgifb_info)
33 {
34 u8 i, reg;
35
36 xgifb_reg_set(XGISR, 0x05, 0x86);
37
38 for (i = 0; i < 0x4f; i++) {
39 reg = xgifb_reg_get(XGISR, i);
40 pr_debug("o 3c4 %x\n", i);
41 pr_debug("i 3c5 => %x\n", reg);
42 }
43
44 for (i = 0; i < 0xF0; i++) {
45 reg = xgifb_reg_get(XGICR, i);
46 pr_debug("o 3d4 %x\n", i);
47 pr_debug("i 3d5 => %x\n", reg);
48 }
49 }
50 #else
dumpVGAReg(struct xgifb_video_info * xgifb_info)51 static inline void dumpVGAReg(struct xgifb_video_info *xgifb_info)
52 {
53 }
54 #endif
55
56 /* --------------- Hardware Access Routines -------------------------- */
57
XGIfb_mode_rate_to_dclock(struct vb_device_info * XGI_Pr,struct xgi_hw_device_info * HwDeviceExtension,unsigned char modeno)58 static int XGIfb_mode_rate_to_dclock(struct vb_device_info *XGI_Pr,
59 struct xgi_hw_device_info *HwDeviceExtension,
60 unsigned char modeno)
61 {
62 unsigned short ModeNo = modeno;
63 unsigned short ModeIdIndex = 0, ClockIndex = 0;
64 unsigned short RefreshRateTableIndex = 0;
65
66 InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
67
68 XGI_SearchModeID(ModeNo, &ModeIdIndex);
69
70 RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
71 ModeIdIndex, XGI_Pr);
72
73 ClockIndex = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
74
75 return XGI_VCLKData[ClockIndex].CLOCK * 1000;
76 }
77
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)78 static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
79 struct xgi_hw_device_info *HwDeviceExtension,
80 unsigned char modeno, u32 *left_margin,
81 u32 *right_margin, u32 *upper_margin,
82 u32 *lower_margin, u32 *hsync_len,
83 u32 *vsync_len, u32 *sync, u32 *vmode)
84 {
85 unsigned short ModeNo = modeno;
86 unsigned short ModeIdIndex, index = 0;
87 unsigned short RefreshRateTableIndex = 0;
88
89 unsigned short VRE, VBE, VRS, VDE;
90 unsigned short HRE, HBE, HRS, HDE;
91 unsigned char sr_data, cr_data, cr_data2;
92 int B, C, D, F, temp, j;
93
94 InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
95 if (!XGI_SearchModeID(ModeNo, &ModeIdIndex))
96 return 0;
97 RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
98 ModeIdIndex, XGI_Pr);
99 index = XGI330_RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC;
100
101 sr_data = XGI_CRT1Table[index].CR[5];
102
103 HDE = XGI330_RefIndex[RefreshRateTableIndex].XRes >> 3;
104
105 cr_data = XGI_CRT1Table[index].CR[3];
106
107 /* Horizontal retrace (=sync) start */
108 HRS = (cr_data & 0xff) | ((unsigned short)(sr_data & 0xC0) << 2);
109 F = HRS - HDE - 3;
110
111 sr_data = XGI_CRT1Table[index].CR[6];
112
113 cr_data = XGI_CRT1Table[index].CR[2];
114
115 cr_data2 = XGI_CRT1Table[index].CR[4];
116
117 /* Horizontal blank end */
118 HBE = (cr_data & 0x1f) | ((unsigned short)(cr_data2 & 0x80) >> 2)
119 | ((unsigned short)(sr_data & 0x03) << 6);
120
121 /* Horizontal retrace (=sync) end */
122 HRE = (cr_data2 & 0x1f) | ((sr_data & 0x04) << 3);
123
124 temp = HBE - ((HDE - 1) & 255);
125 B = (temp > 0) ? temp : (temp + 256);
126
127 temp = HRE - ((HDE + F + 3) & 63);
128 C = (temp > 0) ? temp : (temp + 64);
129
130 D = B - F - C;
131
132 *left_margin = D * 8;
133 *right_margin = F * 8;
134 *hsync_len = C * 8;
135
136 sr_data = XGI_CRT1Table[index].CR[14];
137
138 cr_data2 = XGI_CRT1Table[index].CR[9];
139
140 VDE = XGI330_RefIndex[RefreshRateTableIndex].YRes;
141
142 cr_data = XGI_CRT1Table[index].CR[10];
143
144 /* Vertical retrace (=sync) start */
145 VRS = (cr_data & 0xff) | ((unsigned short)(cr_data2 & 0x04) << 6)
146 | ((unsigned short)(cr_data2 & 0x80) << 2)
147 | ((unsigned short)(sr_data & 0x08) << 7);
148 F = VRS + 1 - VDE;
149
150 cr_data = XGI_CRT1Table[index].CR[13];
151
152 /* Vertical blank end */
153 VBE = (cr_data & 0xff) | ((unsigned short)(sr_data & 0x10) << 4);
154 temp = VBE - ((VDE - 1) & 511);
155 B = (temp > 0) ? temp : (temp + 512);
156
157 cr_data = XGI_CRT1Table[index].CR[11];
158
159 /* Vertical retrace (=sync) end */
160 VRE = (cr_data & 0x0f) | ((sr_data & 0x20) >> 1);
161 temp = VRE - ((VDE + F - 1) & 31);
162 C = (temp > 0) ? temp : (temp + 32);
163
164 D = B - F - C;
165
166 *upper_margin = D;
167 *lower_margin = F;
168 *vsync_len = C;
169
170 if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x8000)
171 *sync &= ~FB_SYNC_VERT_HIGH_ACT;
172 else
173 *sync |= FB_SYNC_VERT_HIGH_ACT;
174
175 if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x4000)
176 *sync &= ~FB_SYNC_HOR_HIGH_ACT;
177 else
178 *sync |= FB_SYNC_HOR_HIGH_ACT;
179
180 *vmode = FB_VMODE_NONINTERLACED;
181 if (XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x0080) {
182 *vmode = FB_VMODE_INTERLACED;
183 } else {
184 j = 0;
185 while (XGI330_EModeIDTable[j].Ext_ModeID != 0xff) {
186 if (XGI330_EModeIDTable[j].Ext_ModeID ==
187 XGI330_RefIndex[RefreshRateTableIndex].ModeID) {
188 if (XGI330_EModeIDTable[j].Ext_ModeFlag &
189 DoubleScanMode) {
190 *vmode = FB_VMODE_DOUBLE;
191 }
192 break;
193 }
194 j++;
195 }
196 }
197
198 return 1;
199 }
200
XGIRegInit(struct vb_device_info * XGI_Pr,unsigned long BaseAddr)201 void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
202 {
203 XGI_Pr->P3c4 = BaseAddr + 0x14;
204 XGI_Pr->P3d4 = BaseAddr + 0x24;
205 XGI_Pr->P3c0 = BaseAddr + 0x10;
206 XGI_Pr->P3ce = BaseAddr + 0x1e;
207 XGI_Pr->P3c2 = BaseAddr + 0x12;
208 XGI_Pr->P3cc = BaseAddr + 0x1c;
209 XGI_Pr->P3ca = BaseAddr + 0x1a;
210 XGI_Pr->P3c6 = BaseAddr + 0x16;
211 XGI_Pr->P3c7 = BaseAddr + 0x17;
212 XGI_Pr->P3c8 = BaseAddr + 0x18;
213 XGI_Pr->P3c9 = BaseAddr + 0x19;
214 XGI_Pr->P3da = BaseAddr + 0x2A;
215 XGI_Pr->Part0Port = BaseAddr + XGI_CRT2_PORT_00;
216 /* Digital video interface registers (LCD) */
217 XGI_Pr->Part1Port = BaseAddr + SIS_CRT2_PORT_04;
218 /* 301 TV Encoder registers */
219 XGI_Pr->Part2Port = BaseAddr + SIS_CRT2_PORT_10;
220 /* 301 Macrovision registers */
221 XGI_Pr->Part3Port = BaseAddr + SIS_CRT2_PORT_12;
222 /* 301 VGA2 (and LCD) registers */
223 XGI_Pr->Part4Port = BaseAddr + SIS_CRT2_PORT_14;
224 /* 301 palette address port registers */
225 XGI_Pr->Part5Port = BaseAddr + SIS_CRT2_PORT_14 + 2;
226 }
227
228 /* ------------------ Internal helper routines ----------------- */
229
XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info * xgifb_info)230 static int XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info *xgifb_info)
231 {
232 int i = 0;
233
234 while ((XGIbios_mode[i].mode_no != 0) &&
235 (XGIbios_mode[i].xres <= xgifb_info->lvds_data.LVDSHDE)) {
236 if ((XGIbios_mode[i].xres == xgifb_info->lvds_data.LVDSHDE) &&
237 (XGIbios_mode[i].yres == xgifb_info->lvds_data.LVDSVDE) &&
238 (XGIbios_mode[i].bpp == 8)) {
239 return i;
240 }
241 i++;
242 }
243
244 return -1;
245 }
246
XGIfb_search_mode(struct xgifb_video_info * xgifb_info,const char * name)247 static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info,
248 const char *name)
249 {
250 unsigned int xres;
251 unsigned int yres;
252 unsigned int bpp;
253 int i;
254
255 if (sscanf(name, "%ux%ux%u", &xres, &yres, &bpp) != 3)
256 goto invalid_mode;
257
258 if (bpp == 24)
259 bpp = 32; /* That's for people who mix up color and fb depth. */
260
261 for (i = 0; XGIbios_mode[i].mode_no != 0; i++)
262 if (XGIbios_mode[i].xres == xres &&
263 XGIbios_mode[i].yres == yres &&
264 XGIbios_mode[i].bpp == bpp) {
265 xgifb_info->mode_idx = i;
266 return;
267 }
268 invalid_mode:
269 pr_info("Invalid mode '%s'\n", name);
270 }
271
XGIfb_search_vesamode(struct xgifb_video_info * xgifb_info,unsigned int vesamode)272 static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info,
273 unsigned int vesamode)
274 {
275 int i = 0;
276
277 if (vesamode == 0)
278 goto invalid;
279
280 vesamode &= 0x1dff; /* Clean VESA mode number from other flags */
281
282 while (XGIbios_mode[i].mode_no != 0) {
283 if ((XGIbios_mode[i].vesa_mode_no_1 == vesamode) ||
284 (XGIbios_mode[i].vesa_mode_no_2 == vesamode)) {
285 xgifb_info->mode_idx = i;
286 return;
287 }
288 i++;
289 }
290
291 invalid:
292 pr_info("Invalid VESA mode 0x%x'\n", vesamode);
293 }
294
XGIfb_validate_mode(struct xgifb_video_info * xgifb_info,int myindex)295 static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
296 {
297 u16 xres, yres;
298 struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
299 unsigned long required_mem;
300
301 if (xgifb_info->chip == XG21) {
302 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
303 xres = xgifb_info->lvds_data.LVDSHDE;
304 yres = xgifb_info->lvds_data.LVDSVDE;
305 if (XGIbios_mode[myindex].xres > xres)
306 return -1;
307 if (XGIbios_mode[myindex].yres > yres)
308 return -1;
309 if ((XGIbios_mode[myindex].xres < xres) &&
310 (XGIbios_mode[myindex].yres < yres)) {
311 if (XGIbios_mode[myindex].bpp > 8)
312 return -1;
313 }
314 }
315 goto check_memory;
316 }
317
318 /* FIXME: for now, all is valid on XG27 */
319 if (xgifb_info->chip == XG27)
320 goto check_memory;
321
322 if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
323 return -1;
324
325 switch (xgifb_info->display2) {
326 case XGIFB_DISP_LCD:
327 switch (hw_info->ulCRT2LCDType) {
328 case LCD_640x480:
329 xres = 640;
330 yres = 480;
331 break;
332 case LCD_800x600:
333 xres = 800;
334 yres = 600;
335 break;
336 case LCD_1024x600:
337 xres = 1024;
338 yres = 600;
339 break;
340 case LCD_1024x768:
341 xres = 1024;
342 yres = 768;
343 break;
344 case LCD_1152x768:
345 xres = 1152;
346 yres = 768;
347 break;
348 case LCD_1280x960:
349 xres = 1280;
350 yres = 960;
351 break;
352 case LCD_1280x768:
353 xres = 1280;
354 yres = 768;
355 break;
356 case LCD_1280x1024:
357 xres = 1280;
358 yres = 1024;
359 break;
360 case LCD_1400x1050:
361 xres = 1400;
362 yres = 1050;
363 break;
364 case LCD_1600x1200:
365 xres = 1600;
366 yres = 1200;
367 break;
368 default:
369 xres = 0;
370 yres = 0;
371 break;
372 }
373 if (XGIbios_mode[myindex].xres > xres)
374 return -1;
375 if (XGIbios_mode[myindex].yres > yres)
376 return -1;
377 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
378 (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
379 switch (XGIbios_mode[myindex].xres) {
380 case 512:
381 if (XGIbios_mode[myindex].yres != 512)
382 return -1;
383 if (hw_info->ulCRT2LCDType == LCD_1024x600)
384 return -1;
385 break;
386 case 640:
387 if ((XGIbios_mode[myindex].yres != 400) &&
388 (XGIbios_mode[myindex].yres != 480))
389 return -1;
390 break;
391 case 800:
392 if (XGIbios_mode[myindex].yres != 600)
393 return -1;
394 break;
395 case 1024:
396 if ((XGIbios_mode[myindex].yres != 600) &&
397 (XGIbios_mode[myindex].yres != 768))
398 return -1;
399 if ((XGIbios_mode[myindex].yres == 600) &&
400 (hw_info->ulCRT2LCDType != LCD_1024x600))
401 return -1;
402 break;
403 case 1152:
404 if ((XGIbios_mode[myindex].yres) != 768)
405 return -1;
406 if (hw_info->ulCRT2LCDType != LCD_1152x768)
407 return -1;
408 break;
409 case 1280:
410 if ((XGIbios_mode[myindex].yres != 768) &&
411 (XGIbios_mode[myindex].yres != 1024))
412 return -1;
413 if ((XGIbios_mode[myindex].yres == 768) &&
414 (hw_info->ulCRT2LCDType != LCD_1280x768))
415 return -1;
416 break;
417 case 1400:
418 if (XGIbios_mode[myindex].yres != 1050)
419 return -1;
420 break;
421 case 1600:
422 if (XGIbios_mode[myindex].yres != 1200)
423 return -1;
424 break;
425 default:
426 return -1;
427 }
428 } else {
429 switch (XGIbios_mode[myindex].xres) {
430 case 512:
431 if (XGIbios_mode[myindex].yres != 512)
432 return -1;
433 break;
434 case 640:
435 if ((XGIbios_mode[myindex].yres != 400) &&
436 (XGIbios_mode[myindex].yres != 480))
437 return -1;
438 break;
439 case 800:
440 if (XGIbios_mode[myindex].yres != 600)
441 return -1;
442 break;
443 case 1024:
444 if (XGIbios_mode[myindex].yres != 768)
445 return -1;
446 break;
447 case 1280:
448 if ((XGIbios_mode[myindex].yres != 960) &&
449 (XGIbios_mode[myindex].yres != 1024))
450 return -1;
451 if (XGIbios_mode[myindex].yres == 960) {
452 if (hw_info->ulCRT2LCDType ==
453 LCD_1400x1050)
454 return -1;
455 }
456 break;
457 case 1400:
458 if (XGIbios_mode[myindex].yres != 1050)
459 return -1;
460 break;
461 case 1600:
462 if (XGIbios_mode[myindex].yres != 1200)
463 return -1;
464 break;
465 default:
466 return -1;
467 }
468 }
469 break;
470 case XGIFB_DISP_TV:
471 switch (XGIbios_mode[myindex].xres) {
472 case 512:
473 case 640:
474 case 800:
475 break;
476 case 720:
477 if (xgifb_info->TV_type == TVMODE_NTSC) {
478 if (XGIbios_mode[myindex].yres != 480)
479 return -1;
480 } else if (xgifb_info->TV_type == TVMODE_PAL) {
481 if (XGIbios_mode[myindex].yres != 576)
482 return -1;
483 }
484 /* LVDS/CHRONTEL does not support 720 */
485 if (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL ||
486 xgifb_info->hasVB == HASVB_CHRONTEL) {
487 return -1;
488 }
489 break;
490 case 1024:
491 if (xgifb_info->TV_type == TVMODE_NTSC) {
492 if (XGIbios_mode[myindex].bpp == 32)
493 return -1;
494 }
495 break;
496 default:
497 return -1;
498 }
499 break;
500 case XGIFB_DISP_CRT:
501 if (XGIbios_mode[myindex].xres > 1280)
502 return -1;
503 break;
504 case XGIFB_DISP_NONE:
505 break;
506 }
507
508 check_memory:
509 required_mem = XGIbios_mode[myindex].xres * XGIbios_mode[myindex].yres *
510 XGIbios_mode[myindex].bpp / 8;
511 if (required_mem > xgifb_info->video_size)
512 return -1;
513 return myindex;
514 }
515
XGIfb_search_crt2type(const char * name)516 static void XGIfb_search_crt2type(const char *name)
517 {
518 int i = 0;
519
520 if (!name)
521 return;
522
523 while (XGI_crt2type[i].type_no != -1) {
524 if (!strcmp(name, XGI_crt2type[i].name)) {
525 XGIfb_crt2type = XGI_crt2type[i].type_no;
526 XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
527 break;
528 }
529 i++;
530 }
531 if (XGIfb_crt2type < 0)
532 pr_info("Invalid CRT2 type: %s\n", name);
533 }
534
XGIfb_search_refresh_rate(struct xgifb_video_info * xgifb_info,unsigned int rate)535 static u8 XGIfb_search_refresh_rate(struct xgifb_video_info *xgifb_info,
536 unsigned int rate)
537 {
538 u16 xres, yres;
539 int i = 0;
540
541 xres = XGIbios_mode[xgifb_info->mode_idx].xres;
542 yres = XGIbios_mode[xgifb_info->mode_idx].yres;
543
544 xgifb_info->rate_idx = 0;
545 while ((XGIfb_vrate[i].idx != 0) && (XGIfb_vrate[i].xres <= xres)) {
546 if ((XGIfb_vrate[i].xres == xres) &&
547 (XGIfb_vrate[i].yres == yres)) {
548 if (XGIfb_vrate[i].refresh == rate) {
549 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
550 break;
551 } else if (XGIfb_vrate[i].refresh > rate) {
552 if ((XGIfb_vrate[i].refresh - rate) <= 3) {
553 pr_debug("Adjusting rate from %d up to %d\n",
554 rate, XGIfb_vrate[i].refresh);
555 xgifb_info->rate_idx =
556 XGIfb_vrate[i].idx;
557 xgifb_info->refresh_rate =
558 XGIfb_vrate[i].refresh;
559 } else if (((rate - XGIfb_vrate[i - 1].refresh)
560 <= 2) && (XGIfb_vrate[i].idx
561 != 1)) {
562 pr_debug("Adjusting rate from %d down to %d\n",
563 rate,
564 XGIfb_vrate[i - 1].refresh);
565 xgifb_info->rate_idx =
566 XGIfb_vrate[i - 1].idx;
567 xgifb_info->refresh_rate =
568 XGIfb_vrate[i - 1].refresh;
569 }
570 break;
571 } else if ((rate - XGIfb_vrate[i].refresh) <= 2) {
572 pr_debug("Adjusting rate from %d down to %d\n",
573 rate, XGIfb_vrate[i].refresh);
574 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
575 break;
576 }
577 }
578 i++;
579 }
580 if (xgifb_info->rate_idx > 0)
581 return xgifb_info->rate_idx;
582 pr_info("Unsupported rate %d for %dx%d\n",
583 rate, xres, yres);
584 return 0;
585 }
586
XGIfb_search_tvstd(const char * name)587 static void XGIfb_search_tvstd(const char *name)
588 {
589 int i = 0;
590
591 if (!name)
592 return;
593
594 while (XGI_tvtype[i].type_no != -1) {
595 if (!strcmp(name, XGI_tvtype[i].name)) {
596 XGIfb_tvmode = XGI_tvtype[i].type_no;
597 break;
598 }
599 i++;
600 }
601 }
602
603 /* ----------- FBDev related routines for all series ----------- */
604
XGIfb_bpp_to_var(struct xgifb_video_info * xgifb_info,struct fb_var_screeninfo * var)605 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
606 struct fb_var_screeninfo *var)
607 {
608 switch (var->bits_per_pixel) {
609 case 8:
610 var->red.offset = 0;
611 var->green.offset = 0;
612 var->blue.offset = 0;
613 var->red.length = 6;
614 var->green.length = 6;
615 var->blue.length = 6;
616 xgifb_info->video_cmap_len = 256;
617 break;
618 case 16:
619 var->red.offset = 11;
620 var->red.length = 5;
621 var->green.offset = 5;
622 var->green.length = 6;
623 var->blue.offset = 0;
624 var->blue.length = 5;
625 var->transp.offset = 0;
626 var->transp.length = 0;
627 xgifb_info->video_cmap_len = 16;
628 break;
629 case 32:
630 var->red.offset = 16;
631 var->red.length = 8;
632 var->green.offset = 8;
633 var->green.length = 8;
634 var->blue.offset = 0;
635 var->blue.length = 8;
636 var->transp.offset = 24;
637 var->transp.length = 8;
638 xgifb_info->video_cmap_len = 16;
639 break;
640 }
641 }
642
643 /* --------------------- SetMode routines ------------------------- */
644
XGIfb_pre_setmode(struct xgifb_video_info * xgifb_info)645 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
646 {
647 u8 cr30 = 0, cr31 = 0;
648
649 cr31 = xgifb_reg_get(XGICR, 0x31);
650 cr31 &= ~0x60;
651
652 switch (xgifb_info->display2) {
653 case XGIFB_DISP_CRT:
654 cr30 = SIS_VB_OUTPUT_CRT2 | SIS_SIMULTANEOUS_VIEW_ENABLE;
655 cr31 |= SIS_DRIVER_MODE;
656 break;
657 case XGIFB_DISP_LCD:
658 cr30 = SIS_VB_OUTPUT_LCD | SIS_SIMULTANEOUS_VIEW_ENABLE;
659 cr31 |= SIS_DRIVER_MODE;
660 break;
661 case XGIFB_DISP_TV:
662 if (xgifb_info->TV_type == TVMODE_HIVISION)
663 cr30 = SIS_VB_OUTPUT_HIVISION
664 | SIS_SIMULTANEOUS_VIEW_ENABLE;
665 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
666 cr30 = SIS_VB_OUTPUT_SVIDEO
667 | SIS_SIMULTANEOUS_VIEW_ENABLE;
668 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
669 cr30 = SIS_VB_OUTPUT_COMPOSITE
670 | SIS_SIMULTANEOUS_VIEW_ENABLE;
671 else if (xgifb_info->TV_plug == TVPLUG_SCART)
672 cr30 = SIS_VB_OUTPUT_SCART
673 | SIS_SIMULTANEOUS_VIEW_ENABLE;
674 cr31 |= SIS_DRIVER_MODE;
675
676 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
677 cr31 |= 0x01;
678 else
679 cr31 &= ~0x01;
680 break;
681 default: /* disable CRT2 */
682 cr30 = 0x00;
683 cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE);
684 }
685
686 xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
687 xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
688 xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33,
689 (xgifb_info->rate_idx & 0x0F));
690 }
691
XGIfb_post_setmode(struct xgifb_video_info * xgifb_info)692 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
693 {
694 u8 reg;
695 unsigned char doit = 1;
696
697 if (xgifb_info->video_bpp == 8) {
698 /*
699 * We can't switch off CRT1 on LVDS/Chrontel
700 * in 8bpp Modes
701 */
702 if ((xgifb_info->hasVB == HASVB_LVDS) ||
703 (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
704 doit = 0;
705 }
706 /*
707 * We can't switch off CRT1 on 301B-DH
708 * in 8bpp Modes if using LCD
709 */
710 if (xgifb_info->display2 == XGIFB_DISP_LCD)
711 doit = 0;
712 }
713
714 /* We can't switch off CRT1 if bridge is in slave mode */
715 if (xgifb_info->hasVB != HASVB_NONE) {
716 reg = xgifb_reg_get(XGIPART1, 0x00);
717
718 if ((reg & 0x50) == 0x10)
719 doit = 0;
720
721 } else {
722 XGIfb_crt1off = 0;
723 }
724
725 reg = xgifb_reg_get(XGICR, 0x17);
726 if ((XGIfb_crt1off) && (doit))
727 reg &= ~0x80;
728 else
729 reg |= 0x80;
730 xgifb_reg_set(XGICR, 0x17, reg);
731
732 xgifb_reg_and(XGISR, IND_SIS_RAMDAC_CONTROL, ~0x04);
733
734 if (xgifb_info->display2 == XGIFB_DISP_TV &&
735 xgifb_info->hasVB == HASVB_301) {
736 reg = xgifb_reg_get(XGIPART4, 0x01);
737
738 if (reg < 0xB0) { /* Set filter for XGI301 */
739 int filter_tb;
740
741 switch (xgifb_info->video_width) {
742 case 320:
743 filter_tb = (xgifb_info->TV_type ==
744 TVMODE_NTSC) ? 4 : 12;
745 break;
746 case 640:
747 filter_tb = (xgifb_info->TV_type ==
748 TVMODE_NTSC) ? 5 : 13;
749 break;
750 case 720:
751 filter_tb = (xgifb_info->TV_type ==
752 TVMODE_NTSC) ? 6 : 14;
753 break;
754 case 800:
755 filter_tb = (xgifb_info->TV_type ==
756 TVMODE_NTSC) ? 7 : 15;
757 break;
758 default:
759 filter_tb = 0;
760 filter = -1;
761 break;
762 }
763 xgifb_reg_or(XGIPART1,
764 SIS_CRT2_WENABLE_315,
765 0x01);
766
767 if (xgifb_info->TV_type == TVMODE_NTSC) {
768 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
769
770 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
771 xgifb_reg_and(XGIPART2, 0x30, 0xdf);
772
773 } else if (xgifb_info->TV_plug
774 == TVPLUG_COMPOSITE) {
775 xgifb_reg_or(XGIPART2, 0x30, 0x20);
776
777 switch (xgifb_info->video_width) {
778 case 640:
779 xgifb_reg_set(XGIPART2,
780 0x35,
781 0xEB);
782 xgifb_reg_set(XGIPART2,
783 0x36,
784 0x04);
785 xgifb_reg_set(XGIPART2,
786 0x37,
787 0x25);
788 xgifb_reg_set(XGIPART2,
789 0x38,
790 0x18);
791 break;
792 case 720:
793 xgifb_reg_set(XGIPART2,
794 0x35,
795 0xEE);
796 xgifb_reg_set(XGIPART2,
797 0x36,
798 0x0C);
799 xgifb_reg_set(XGIPART2,
800 0x37,
801 0x22);
802 xgifb_reg_set(XGIPART2,
803 0x38,
804 0x08);
805 break;
806 case 800:
807 xgifb_reg_set(XGIPART2,
808 0x35,
809 0xEB);
810 xgifb_reg_set(XGIPART2,
811 0x36,
812 0x15);
813 xgifb_reg_set(XGIPART2,
814 0x37,
815 0x25);
816 xgifb_reg_set(XGIPART2,
817 0x38,
818 0xF6);
819 break;
820 }
821 }
822
823 } else if (xgifb_info->TV_type == TVMODE_PAL) {
824 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
825
826 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
827 xgifb_reg_and(XGIPART2, 0x30, 0xDF);
828
829 } else if (xgifb_info->TV_plug
830 == TVPLUG_COMPOSITE) {
831 xgifb_reg_or(XGIPART2, 0x30, 0x20);
832
833 switch (xgifb_info->video_width) {
834 case 640:
835 xgifb_reg_set(XGIPART2,
836 0x35,
837 0xF1);
838 xgifb_reg_set(XGIPART2,
839 0x36,
840 0xF7);
841 xgifb_reg_set(XGIPART2,
842 0x37,
843 0x1F);
844 xgifb_reg_set(XGIPART2,
845 0x38,
846 0x32);
847 break;
848 case 720:
849 xgifb_reg_set(XGIPART2,
850 0x35,
851 0xF3);
852 xgifb_reg_set(XGIPART2,
853 0x36,
854 0x00);
855 xgifb_reg_set(XGIPART2,
856 0x37,
857 0x1D);
858 xgifb_reg_set(XGIPART2,
859 0x38,
860 0x20);
861 break;
862 case 800:
863 xgifb_reg_set(XGIPART2,
864 0x35,
865 0xFC);
866 xgifb_reg_set(XGIPART2,
867 0x36,
868 0xFB);
869 xgifb_reg_set(XGIPART2,
870 0x37,
871 0x14);
872 xgifb_reg_set(XGIPART2,
873 0x38,
874 0x2A);
875 break;
876 }
877 }
878 }
879
880 if ((filter >= 0) && (filter <= 7)) {
881 const u8 *f = XGI_TV_filter[filter_tb].filter[filter];
882
883 pr_debug("FilterTable[%d]-%d: %*ph\n",
884 filter_tb, filter, 4, f);
885 xgifb_reg_set(XGIPART2, 0x35, f[0]);
886 xgifb_reg_set(XGIPART2, 0x36, f[1]);
887 xgifb_reg_set(XGIPART2, 0x37, f[2]);
888 xgifb_reg_set(XGIPART2, 0x38, f[3]);
889 }
890 }
891 }
892 }
893
XGIfb_do_set_var(struct fb_var_screeninfo * var,int isactive,struct fb_info * info)894 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
895 struct fb_info *info)
896 {
897 struct xgifb_video_info *xgifb_info = info->par;
898 struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
899 unsigned int htotal = var->left_margin + var->xres + var->right_margin
900 + var->hsync_len;
901 unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
902 + var->vsync_len;
903 #if defined(__BIG_ENDIAN)
904 u8 cr_data;
905 #endif
906 unsigned int drate = 0, hrate = 0;
907 int found_mode = 0;
908 int old_mode;
909
910 info->var.xres_virtual = var->xres_virtual;
911 info->var.yres_virtual = var->yres_virtual;
912 info->var.bits_per_pixel = var->bits_per_pixel;
913
914 if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
915 vtotal <<= 1;
916 else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
917 vtotal <<= 2;
918
919 if (!htotal || !vtotal) {
920 pr_debug("Invalid 'var' information\n");
921 return -EINVAL;
922 } pr_debug("var->pixclock=%d, htotal=%d, vtotal=%d\n",
923 var->pixclock, htotal, vtotal);
924
925 if (var->pixclock) {
926 drate = 1000000000 / var->pixclock;
927 hrate = (drate * 1000) / htotal;
928 xgifb_info->refresh_rate = (unsigned int)(hrate * 2
929 / vtotal);
930 } else {
931 xgifb_info->refresh_rate = 60;
932 }
933
934 pr_debug("Change mode to %dx%dx%d-%dHz\n",
935 var->xres, var->yres, var->bits_per_pixel,
936 xgifb_info->refresh_rate);
937
938 old_mode = xgifb_info->mode_idx;
939 xgifb_info->mode_idx = 0;
940
941 while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
942 (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
943 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
944 (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
945 (XGIbios_mode[xgifb_info->mode_idx].bpp
946 == var->bits_per_pixel)) {
947 found_mode = 1;
948 break;
949 }
950 xgifb_info->mode_idx++;
951 }
952
953 if (found_mode)
954 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
955 xgifb_info->mode_idx);
956 else
957 xgifb_info->mode_idx = -1;
958
959 if (xgifb_info->mode_idx < 0) {
960 pr_err("Mode %dx%dx%d not supported\n",
961 var->xres, var->yres, var->bits_per_pixel);
962 xgifb_info->mode_idx = old_mode;
963 return -EINVAL;
964 }
965
966 if (XGIfb_search_refresh_rate(xgifb_info,
967 xgifb_info->refresh_rate) == 0) {
968 xgifb_info->rate_idx = 1;
969 xgifb_info->refresh_rate = 60;
970 }
971
972 if (isactive) {
973 XGIfb_pre_setmode(xgifb_info);
974 if (XGISetModeNew(xgifb_info, hw_info,
975 XGIbios_mode[xgifb_info->mode_idx].mode_no)
976 == 0) {
977 pr_err("Setting mode[0x%x] failed\n",
978 XGIbios_mode[xgifb_info->mode_idx].mode_no);
979 return -EINVAL;
980 }
981 info->fix.line_length = (info->var.xres_virtual
982 * info->var.bits_per_pixel) >> 6;
983
984 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
985
986 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
987 xgifb_reg_set(XGISR,
988 0x0E,
989 (info->fix.line_length & 0xff00) >> 8);
990
991 XGIfb_post_setmode(xgifb_info);
992
993 pr_debug("Set new mode: %dx%dx%d-%d\n",
994 XGIbios_mode[xgifb_info->mode_idx].xres,
995 XGIbios_mode[xgifb_info->mode_idx].yres,
996 XGIbios_mode[xgifb_info->mode_idx].bpp,
997 xgifb_info->refresh_rate);
998
999 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1000 xgifb_info->video_vwidth = info->var.xres_virtual;
1001 xgifb_info->video_width =
1002 XGIbios_mode[xgifb_info->mode_idx].xres;
1003 xgifb_info->video_vheight = info->var.yres_virtual;
1004 xgifb_info->video_height =
1005 XGIbios_mode[xgifb_info->mode_idx].yres;
1006 xgifb_info->org_x = 0;
1007 xgifb_info->org_y = 0;
1008 xgifb_info->video_linelength = info->var.xres_virtual
1009 * (xgifb_info->video_bpp >> 3);
1010 switch (xgifb_info->video_bpp) {
1011 case 8:
1012 xgifb_info->DstColor = 0x0000;
1013 xgifb_info->XGI310_AccelDepth = 0x00000000;
1014 xgifb_info->video_cmap_len = 256;
1015 #if defined(__BIG_ENDIAN)
1016 cr_data = xgifb_reg_get(XGICR, 0x4D);
1017 xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1018 #endif
1019 break;
1020 case 16:
1021 xgifb_info->DstColor = 0x8000;
1022 xgifb_info->XGI310_AccelDepth = 0x00010000;
1023 #if defined(__BIG_ENDIAN)
1024 cr_data = xgifb_reg_get(XGICR, 0x4D);
1025 xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1026 #endif
1027 xgifb_info->video_cmap_len = 16;
1028 break;
1029 case 32:
1030 xgifb_info->DstColor = 0xC000;
1031 xgifb_info->XGI310_AccelDepth = 0x00020000;
1032 xgifb_info->video_cmap_len = 16;
1033 #if defined(__BIG_ENDIAN)
1034 cr_data = xgifb_reg_get(XGICR, 0x4D);
1035 xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1036 #endif
1037 break;
1038 default:
1039 xgifb_info->video_cmap_len = 16;
1040 pr_err("Unsupported depth %d\n",
1041 xgifb_info->video_bpp);
1042 break;
1043 }
1044 }
1045 XGIfb_bpp_to_var(xgifb_info, var); /* update ARGB info */
1046
1047 dumpVGAReg(xgifb_info);
1048 return 0;
1049 }
1050
XGIfb_pan_var(struct fb_var_screeninfo * var,struct fb_info * info)1051 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1052 {
1053 struct xgifb_video_info *xgifb_info = info->par;
1054 unsigned int base;
1055
1056 base = var->yoffset * info->var.xres_virtual + var->xoffset;
1057
1058 /* calculate base bpp dep. */
1059 switch (info->var.bits_per_pixel) {
1060 case 16:
1061 base >>= 1;
1062 break;
1063 case 32:
1064 break;
1065 case 8:
1066 default:
1067 base >>= 2;
1068 break;
1069 }
1070
1071 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1072
1073 xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1074 xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1075 xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1076 xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1077 xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1078
1079 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1080 xgifb_reg_or(XGIPART1, SIS_CRT2_WENABLE_315, 0x01);
1081 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1082 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1083 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1084 xgifb_reg_and_or(XGIPART1,
1085 0x02,
1086 0x7F,
1087 ((base >> 24) & 0x01) << 7);
1088 }
1089 return 0;
1090 }
1091
XGIfb_open(struct fb_info * info,int user)1092 static int XGIfb_open(struct fb_info *info, int user)
1093 {
1094 return 0;
1095 }
1096
XGIfb_release(struct fb_info * info,int user)1097 static int XGIfb_release(struct fb_info *info, int user)
1098 {
1099 return 0;
1100 }
1101
1102 /* similar to sisfb_get_cmap_len */
XGIfb_get_cmap_len(const struct fb_var_screeninfo * var)1103 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1104 {
1105 return (var->bits_per_pixel == 8) ? 256 : 16;
1106 }
1107
XGIfb_setcolreg(unsigned int regno,unsigned int red,unsigned int green,unsigned int blue,unsigned int transp,struct fb_info * info)1108 static int XGIfb_setcolreg(unsigned int regno, unsigned int red,
1109 unsigned int green, unsigned int blue,
1110 unsigned int transp, struct fb_info *info)
1111 {
1112 struct xgifb_video_info *xgifb_info = info->par;
1113
1114 if (regno >= XGIfb_get_cmap_len(&info->var))
1115 return 1;
1116
1117 switch (info->var.bits_per_pixel) {
1118 case 8:
1119 outb(regno, XGIDACA);
1120 outb((red >> 10), XGIDACD);
1121 outb((green >> 10), XGIDACD);
1122 outb((blue >> 10), XGIDACD);
1123 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1124 outb(regno, XGIDAC2A);
1125 outb((red >> 8), XGIDAC2D);
1126 outb((green >> 8), XGIDAC2D);
1127 outb((blue >> 8), XGIDAC2D);
1128 }
1129 break;
1130 case 16:
1131 ((u32 *)(info->pseudo_palette))[regno] = ((red & 0xf800))
1132 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1133 >> 11);
1134 break;
1135 case 32:
1136 red >>= 8;
1137 green >>= 8;
1138 blue >>= 8;
1139 ((u32 *)(info->pseudo_palette))[regno] = (red << 16) | (green
1140 << 8) | (blue);
1141 break;
1142 }
1143 return 0;
1144 }
1145
1146 /* ----------- FBDev related routines for all series ---------- */
1147
XGIfb_get_fix(struct fb_fix_screeninfo * fix,int con,struct fb_info * info)1148 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1149 struct fb_info *info)
1150 {
1151 struct xgifb_video_info *xgifb_info = info->par;
1152
1153 memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1154
1155 strncpy(fix->id, "XGI", sizeof(fix->id) - 1);
1156
1157 /* if register_framebuffer has been called, we must lock */
1158 if (atomic_read(&info->count))
1159 mutex_lock(&info->mm_lock);
1160
1161 fix->smem_start = xgifb_info->video_base;
1162 fix->smem_len = xgifb_info->video_size;
1163
1164 /* if register_framebuffer has been called, we can unlock */
1165 if (atomic_read(&info->count))
1166 mutex_unlock(&info->mm_lock);
1167
1168 fix->type = FB_TYPE_PACKED_PIXELS;
1169 fix->type_aux = 0;
1170 if (xgifb_info->video_bpp == 8)
1171 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1172 else
1173 fix->visual = FB_VISUAL_DIRECTCOLOR;
1174 fix->xpanstep = 0;
1175 if (XGIfb_ypan)
1176 fix->ypanstep = 1;
1177 fix->ywrapstep = 0;
1178 fix->line_length = xgifb_info->video_linelength;
1179 fix->mmio_start = xgifb_info->mmio_base;
1180 fix->mmio_len = xgifb_info->mmio_size;
1181 fix->accel = FB_ACCEL_SIS_XABRE;
1182
1183 return 0;
1184 }
1185
XGIfb_set_par(struct fb_info * info)1186 static int XGIfb_set_par(struct fb_info *info)
1187 {
1188 int err;
1189
1190 err = XGIfb_do_set_var(&info->var, 1, info);
1191 if (err)
1192 return err;
1193 XGIfb_get_fix(&info->fix, -1, info);
1194 return 0;
1195 }
1196
XGIfb_check_var(struct fb_var_screeninfo * var,struct fb_info * info)1197 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1198 {
1199 struct xgifb_video_info *xgifb_info = info->par;
1200 unsigned int htotal = var->left_margin + var->xres + var->right_margin
1201 + var->hsync_len;
1202 unsigned int vtotal = 0;
1203 unsigned int drate = 0, hrate = 0;
1204 int found_mode = 0;
1205 int search_idx;
1206
1207 if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1208 vtotal = var->upper_margin + var->yres + var->lower_margin
1209 + var->vsync_len;
1210 vtotal <<= 1;
1211 } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1212 vtotal = var->upper_margin + var->yres + var->lower_margin
1213 + var->vsync_len;
1214 vtotal <<= 2;
1215 } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1216 vtotal = var->upper_margin + (var->yres / 2)
1217 + var->lower_margin + var->vsync_len;
1218 } else
1219 vtotal = var->upper_margin + var->yres + var->lower_margin
1220 + var->vsync_len;
1221
1222 if (!(htotal) || !(vtotal)) {
1223 pr_debug("No valid timing data\n");
1224 return -EINVAL;
1225 }
1226
1227 if (var->pixclock && htotal && vtotal) {
1228 drate = 1000000000 / var->pixclock;
1229 hrate = (drate * 1000) / htotal;
1230 xgifb_info->refresh_rate =
1231 (unsigned int)(hrate * 2 / vtotal);
1232 pr_debug(
1233 "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1234 "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1235 __func__, var->pixclock, htotal, vtotal,
1236 __func__, drate, hrate, xgifb_info->refresh_rate);
1237 } else {
1238 xgifb_info->refresh_rate = 60;
1239 }
1240
1241 search_idx = 0;
1242 while ((XGIbios_mode[search_idx].mode_no != 0) &&
1243 (XGIbios_mode[search_idx].xres <= var->xres)) {
1244 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1245 (XGIbios_mode[search_idx].yres == var->yres) &&
1246 (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1247 if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1248 found_mode = 1;
1249 break;
1250 }
1251 }
1252 search_idx++;
1253 }
1254
1255 if (!found_mode) {
1256 pr_err("%dx%dx%d is no valid mode\n",
1257 var->xres, var->yres, var->bits_per_pixel);
1258 search_idx = 0;
1259 while (XGIbios_mode[search_idx].mode_no != 0) {
1260 if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1261 (var->yres <= XGIbios_mode[search_idx].yres) &&
1262 (var->bits_per_pixel ==
1263 XGIbios_mode[search_idx].bpp)) {
1264 if (XGIfb_validate_mode(xgifb_info,
1265 search_idx) > 0) {
1266 found_mode = 1;
1267 break;
1268 }
1269 }
1270 search_idx++;
1271 }
1272 if (found_mode) {
1273 var->xres = XGIbios_mode[search_idx].xres;
1274 var->yres = XGIbios_mode[search_idx].yres;
1275 pr_debug("Adapted to mode %dx%dx%d\n",
1276 var->xres, var->yres, var->bits_per_pixel);
1277
1278 } else {
1279 pr_err("Failed to find similar mode to %dx%dx%d\n",
1280 var->xres, var->yres, var->bits_per_pixel);
1281 return -EINVAL;
1282 }
1283 }
1284
1285 /* Adapt RGB settings */
1286 XGIfb_bpp_to_var(xgifb_info, var);
1287
1288 if (!XGIfb_ypan) {
1289 if (var->xres != var->xres_virtual)
1290 var->xres_virtual = var->xres;
1291 if (var->yres != var->yres_virtual)
1292 var->yres_virtual = var->yres;
1293 }
1294
1295 /* Truncate offsets to maximum if too high */
1296 if (var->xoffset > var->xres_virtual - var->xres)
1297 var->xoffset = var->xres_virtual - var->xres - 1;
1298
1299 if (var->yoffset > var->yres_virtual - var->yres)
1300 var->yoffset = var->yres_virtual - var->yres - 1;
1301
1302 /* Set everything else to 0 */
1303 var->red.msb_right = 0;
1304 var->green.msb_right = 0;
1305 var->blue.msb_right = 0;
1306 var->transp.offset = 0;
1307 var->transp.length = 0;
1308 var->transp.msb_right = 0;
1309
1310 return 0;
1311 }
1312
XGIfb_pan_display(struct fb_var_screeninfo * var,struct fb_info * info)1313 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1314 struct fb_info *info)
1315 {
1316 int err;
1317
1318 if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1319 return -EINVAL;
1320 if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1321 return -EINVAL;
1322
1323 if (var->vmode & FB_VMODE_YWRAP) {
1324 if (var->yoffset >= info->var.yres_virtual || var->xoffset)
1325 return -EINVAL;
1326 } else if (var->xoffset + info->var.xres > info->var.xres_virtual ||
1327 var->yoffset + info->var.yres > info->var.yres_virtual) {
1328 return -EINVAL;
1329 }
1330 err = XGIfb_pan_var(var, info);
1331 if (err < 0)
1332 return err;
1333
1334 info->var.xoffset = var->xoffset;
1335 info->var.yoffset = var->yoffset;
1336 if (var->vmode & FB_VMODE_YWRAP)
1337 info->var.vmode |= FB_VMODE_YWRAP;
1338 else
1339 info->var.vmode &= ~FB_VMODE_YWRAP;
1340
1341 return 0;
1342 }
1343
XGIfb_blank(int blank,struct fb_info * info)1344 static int XGIfb_blank(int blank, struct fb_info *info)
1345 {
1346 struct xgifb_video_info *xgifb_info = info->par;
1347 u8 reg;
1348
1349 reg = xgifb_reg_get(XGICR, 0x17);
1350
1351 if (blank > 0)
1352 reg &= 0x7f;
1353 else
1354 reg |= 0x80;
1355
1356 xgifb_reg_set(XGICR, 0x17, reg);
1357 xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1358 xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1359 return 0;
1360 }
1361
1362 static struct fb_ops XGIfb_ops = {
1363 .owner = THIS_MODULE,
1364 .fb_open = XGIfb_open,
1365 .fb_release = XGIfb_release,
1366 .fb_check_var = XGIfb_check_var,
1367 .fb_set_par = XGIfb_set_par,
1368 .fb_setcolreg = XGIfb_setcolreg,
1369 .fb_pan_display = XGIfb_pan_display,
1370 .fb_blank = XGIfb_blank,
1371 .fb_fillrect = cfb_fillrect,
1372 .fb_copyarea = cfb_copyarea,
1373 .fb_imageblit = cfb_imageblit,
1374 };
1375
1376 /* ---------------- Chip generation dependent routines ---------------- */
1377
1378 /* for XGI 315/550/650/740/330 */
1379
XGIfb_get_dram_size(struct xgifb_video_info * xgifb_info)1380 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1381 {
1382 u8 ChannelNum, tmp;
1383 u8 reg = 0;
1384
1385 /* xorg driver sets 32MB * 1 channel */
1386 if (xgifb_info->chip == XG27)
1387 xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51);
1388
1389 reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE);
1390 if (!reg)
1391 return -1;
1392
1393 switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1394 case XGI_DRAM_SIZE_1MB:
1395 xgifb_info->video_size = 0x100000;
1396 break;
1397 case XGI_DRAM_SIZE_2MB:
1398 xgifb_info->video_size = 0x200000;
1399 break;
1400 case XGI_DRAM_SIZE_4MB:
1401 xgifb_info->video_size = 0x400000;
1402 break;
1403 case XGI_DRAM_SIZE_8MB:
1404 xgifb_info->video_size = 0x800000;
1405 break;
1406 case XGI_DRAM_SIZE_16MB:
1407 xgifb_info->video_size = 0x1000000;
1408 break;
1409 case XGI_DRAM_SIZE_32MB:
1410 xgifb_info->video_size = 0x2000000;
1411 break;
1412 case XGI_DRAM_SIZE_64MB:
1413 xgifb_info->video_size = 0x4000000;
1414 break;
1415 case XGI_DRAM_SIZE_128MB:
1416 xgifb_info->video_size = 0x8000000;
1417 break;
1418 case XGI_DRAM_SIZE_256MB:
1419 xgifb_info->video_size = 0x10000000;
1420 break;
1421 default:
1422 return -1;
1423 }
1424
1425 tmp = (reg & 0x0c) >> 2;
1426 switch (xgifb_info->chip) {
1427 case XG20:
1428 case XG21:
1429 case XG27:
1430 ChannelNum = 1;
1431 break;
1432
1433 case XG42:
1434 if (reg & 0x04)
1435 ChannelNum = 2;
1436 else
1437 ChannelNum = 1;
1438 break;
1439
1440 case XG40:
1441 default:
1442 if (tmp == 2)
1443 ChannelNum = 2;
1444 else if (tmp == 3)
1445 ChannelNum = 3;
1446 else
1447 ChannelNum = 1;
1448 break;
1449 }
1450
1451 xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1452
1453 pr_info("SR14=%x DramSzie %x ChannelNum %x\n",
1454 reg, xgifb_info->video_size, ChannelNum);
1455 return 0;
1456 }
1457
XGIfb_detect_VB(struct xgifb_video_info * xgifb_info)1458 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1459 {
1460 u8 cr32, temp = 0;
1461
1462 xgifb_info->TV_plug = 0;
1463 xgifb_info->TV_type = 0;
1464
1465 cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1466
1467 if ((cr32 & SIS_CRT1) && !XGIfb_crt1off) {
1468 XGIfb_crt1off = 0;
1469 } else {
1470 if (cr32 & 0x5F)
1471 XGIfb_crt1off = 1;
1472 else
1473 XGIfb_crt1off = 0;
1474 }
1475
1476 if (!xgifb_info->display2_force) {
1477 if (cr32 & SIS_VB_TV)
1478 xgifb_info->display2 = XGIFB_DISP_TV;
1479 else if (cr32 & SIS_VB_LCD)
1480 xgifb_info->display2 = XGIFB_DISP_LCD;
1481 else if (cr32 & SIS_VB_CRT2)
1482 xgifb_info->display2 = XGIFB_DISP_CRT;
1483 else
1484 xgifb_info->display2 = XGIFB_DISP_NONE;
1485 }
1486
1487 if (XGIfb_tvplug != -1) {
1488 /* Override with option */
1489 xgifb_info->TV_plug = XGIfb_tvplug;
1490 } else if (cr32 & SIS_VB_HIVISION) {
1491 xgifb_info->TV_type = TVMODE_HIVISION;
1492 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1493 } else if (cr32 & SIS_VB_SVIDEO) {
1494 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1495 } else if (cr32 & SIS_VB_COMPOSITE) {
1496 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1497 } else if (cr32 & SIS_VB_SCART) {
1498 xgifb_info->TV_plug = TVPLUG_SCART;
1499 }
1500
1501 if (xgifb_info->TV_type == 0) {
1502 temp = xgifb_reg_get(XGICR, 0x38);
1503 if (temp & 0x10)
1504 xgifb_info->TV_type = TVMODE_PAL;
1505 else
1506 xgifb_info->TV_type = TVMODE_NTSC;
1507 }
1508
1509 /* Copy forceCRT1 option to CRT1off if option is given */
1510 if (XGIfb_forcecrt1 != -1) {
1511 if (XGIfb_forcecrt1)
1512 XGIfb_crt1off = 0;
1513 else
1514 XGIfb_crt1off = 1;
1515 }
1516 }
1517
XGIfb_has_VB(struct xgifb_video_info * xgifb_info)1518 static bool XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1519 {
1520 u8 vb_chipid;
1521
1522 vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1523 switch (vb_chipid) {
1524 case 0x01:
1525 xgifb_info->hasVB = HASVB_301;
1526 break;
1527 case 0x02:
1528 xgifb_info->hasVB = HASVB_302;
1529 break;
1530 default:
1531 xgifb_info->hasVB = HASVB_NONE;
1532 return false;
1533 }
1534 return true;
1535 }
1536
XGIfb_get_VB_type(struct xgifb_video_info * xgifb_info)1537 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1538 {
1539 u8 reg;
1540
1541 if (!XGIfb_has_VB(xgifb_info)) {
1542 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1543 switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) {
1544 case SIS_EXTERNAL_CHIP_LVDS:
1545 xgifb_info->hasVB = HASVB_LVDS;
1546 break;
1547 case SIS_EXTERNAL_CHIP_LVDS_CHRONTEL:
1548 xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1549 break;
1550 default:
1551 break;
1552 }
1553 }
1554 }
1555
xgifb_optval(char * fullopt,int validx)1556 static int __init xgifb_optval(char *fullopt, int validx)
1557 {
1558 unsigned long lres;
1559
1560 if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1561 pr_err("Invalid value for option: %s\n", fullopt);
1562 return 0;
1563 }
1564 return lres;
1565 }
1566
XGIfb_setup(char * options)1567 static int __init XGIfb_setup(char *options)
1568 {
1569 char *this_opt;
1570
1571 if (!options || !*options)
1572 return 0;
1573
1574 pr_info("Options: %s\n", options);
1575
1576 while ((this_opt = strsep(&options, ",")) != NULL) {
1577 if (!*this_opt)
1578 continue;
1579
1580 if (!strncmp(this_opt, "mode:", 5)) {
1581 mode = this_opt + 5;
1582 } else if (!strncmp(this_opt, "vesa:", 5)) {
1583 vesa = xgifb_optval(this_opt, 5);
1584 } else if (!strncmp(this_opt, "vrate:", 6)) {
1585 refresh_rate = xgifb_optval(this_opt, 6);
1586 } else if (!strncmp(this_opt, "rate:", 5)) {
1587 refresh_rate = xgifb_optval(this_opt, 5);
1588 } else if (!strncmp(this_opt, "crt1off", 7)) {
1589 XGIfb_crt1off = 1;
1590 } else if (!strncmp(this_opt, "filter:", 7)) {
1591 filter = xgifb_optval(this_opt, 7);
1592 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1593 XGIfb_search_crt2type(this_opt + 14);
1594 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1595 XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1596 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1597 XGIfb_search_tvstd(this_opt + 7);
1598 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1599 XGIfb_search_tvstd(this_opt + 7);
1600 } else if (!strncmp(this_opt, "dstn", 4)) {
1601 enable_dstn = 1;
1602 /* DSTN overrules forcecrt2type */
1603 XGIfb_crt2type = XGIFB_DISP_LCD;
1604 } else if (!strncmp(this_opt, "noypan", 6)) {
1605 XGIfb_ypan = 0;
1606 } else {
1607 mode = this_opt;
1608 }
1609 }
1610 return 0;
1611 }
1612
xgifb_probe(struct pci_dev * pdev,const struct pci_device_id * ent)1613 static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1614 {
1615 u8 reg, reg1;
1616 u8 CR48, CR38;
1617 int ret;
1618 struct fb_info *fb_info;
1619 struct xgifb_video_info *xgifb_info;
1620 struct xgi_hw_device_info *hw_info;
1621 unsigned long video_size_max;
1622
1623 fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1624 if (!fb_info)
1625 return -ENOMEM;
1626
1627 xgifb_info = fb_info->par;
1628 hw_info = &xgifb_info->hw_info;
1629 xgifb_info->fb_info = fb_info;
1630 xgifb_info->chip_id = pdev->device;
1631 pci_read_config_byte(pdev,
1632 PCI_REVISION_ID,
1633 &xgifb_info->revision_id);
1634 hw_info->jChipRevision = xgifb_info->revision_id;
1635
1636 xgifb_info->pcibus = pdev->bus->number;
1637 xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1638 xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1639 xgifb_info->subsysvendor = pdev->subsystem_vendor;
1640 xgifb_info->subsysdevice = pdev->subsystem_device;
1641
1642 video_size_max = pci_resource_len(pdev, 0);
1643 xgifb_info->video_base = pci_resource_start(pdev, 0);
1644 xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1645 xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1646 xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1647 dev_info(&pdev->dev, "Relocate IO address: %llx [%08lx]\n",
1648 (u64)pci_resource_start(pdev, 2),
1649 xgifb_info->vga_base);
1650
1651 if (pci_enable_device(pdev)) {
1652 ret = -EIO;
1653 goto error;
1654 }
1655
1656 if (XGIfb_crt2type != -1) {
1657 xgifb_info->display2 = XGIfb_crt2type;
1658 xgifb_info->display2_force = true;
1659 }
1660
1661 XGIRegInit(&xgifb_info->dev_info, xgifb_info->vga_base);
1662
1663 xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD);
1664 reg1 = xgifb_reg_get(XGISR, IND_SIS_PASSWORD);
1665
1666 if (reg1 != 0xa1) { /* I/O error */
1667 dev_err(&pdev->dev, "I/O error\n");
1668 ret = -EIO;
1669 goto error_disable;
1670 }
1671
1672 switch (xgifb_info->chip_id) {
1673 case PCI_DEVICE_ID_XGI_20:
1674 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
1675 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
1676 if (CR48 & GPIOG_READ)
1677 xgifb_info->chip = XG21;
1678 else
1679 xgifb_info->chip = XG20;
1680 break;
1681 case PCI_DEVICE_ID_XGI_40:
1682 xgifb_info->chip = XG40;
1683 break;
1684 case PCI_DEVICE_ID_XGI_42:
1685 xgifb_info->chip = XG42;
1686 break;
1687 case PCI_DEVICE_ID_XGI_27:
1688 xgifb_info->chip = XG27;
1689 break;
1690 default:
1691 ret = -ENODEV;
1692 goto error_disable;
1693 }
1694
1695 dev_info(&pdev->dev, "chipid = %x\n", xgifb_info->chip);
1696 hw_info->jChipType = xgifb_info->chip;
1697
1698 if (XGIfb_get_dram_size(xgifb_info)) {
1699 xgifb_info->video_size = min_t(unsigned long, video_size_max,
1700 SZ_16M);
1701 } else if (xgifb_info->video_size > video_size_max) {
1702 xgifb_info->video_size = video_size_max;
1703 }
1704
1705 /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE */
1706 xgifb_reg_or(XGISR,
1707 IND_SIS_PCI_ADDRESS_SET,
1708 (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE));
1709 /* Enable 2D accelerator engine */
1710 xgifb_reg_or(XGISR, IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D);
1711
1712 hw_info->ulVideoMemorySize = xgifb_info->video_size;
1713
1714 if (!request_mem_region(xgifb_info->video_base,
1715 xgifb_info->video_size,
1716 "XGIfb FB")) {
1717 dev_err(&pdev->dev, "Unable request memory size %x\n",
1718 xgifb_info->video_size);
1719 dev_err(&pdev->dev,
1720 "Fatal error: Unable to reserve frame buffer memory. Is there another framebuffer driver active?\n");
1721 ret = -ENODEV;
1722 goto error_disable;
1723 }
1724
1725 if (!request_mem_region(xgifb_info->mmio_base,
1726 xgifb_info->mmio_size,
1727 "XGIfb MMIO")) {
1728 dev_err(&pdev->dev,
1729 "Fatal error: Unable to reserve MMIO region\n");
1730 ret = -ENODEV;
1731 goto error_0;
1732 }
1733
1734 xgifb_info->video_vbase =
1735 ioremap_wc(xgifb_info->video_base, xgifb_info->video_size);
1736 hw_info->pjVideoMemoryAddress =
1737 ioremap_wc(xgifb_info->video_base, xgifb_info->video_size);
1738 xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
1739 xgifb_info->mmio_size);
1740
1741 dev_info(&pdev->dev,
1742 "Framebuffer at 0x%llx, mapped to 0x%p, size %dk\n",
1743 (u64)xgifb_info->video_base,
1744 xgifb_info->video_vbase,
1745 xgifb_info->video_size / 1024);
1746
1747 dev_info(&pdev->dev,
1748 "MMIO at 0x%llx, mapped to 0x%p, size %ldk\n",
1749 (u64)xgifb_info->mmio_base, xgifb_info->mmio_vbase,
1750 xgifb_info->mmio_size / 1024);
1751
1752 pci_set_drvdata(pdev, xgifb_info);
1753 if (!XGIInitNew(pdev))
1754 dev_err(&pdev->dev, "XGIInitNew() failed!\n");
1755
1756 xgifb_info->mtrr = -1;
1757
1758 xgifb_info->hasVB = HASVB_NONE;
1759 if ((xgifb_info->chip == XG20) ||
1760 (xgifb_info->chip == XG27)) {
1761 xgifb_info->hasVB = HASVB_NONE;
1762 } else if (xgifb_info->chip == XG21) {
1763 CR38 = xgifb_reg_get(XGICR, 0x38);
1764 if ((CR38 & 0xE0) == 0xC0)
1765 xgifb_info->display2 = XGIFB_DISP_LCD;
1766 else if ((CR38 & 0xE0) == 0x60)
1767 xgifb_info->hasVB = HASVB_CHRONTEL;
1768 else
1769 xgifb_info->hasVB = HASVB_NONE;
1770 } else {
1771 XGIfb_get_VB_type(xgifb_info);
1772 }
1773
1774 hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
1775
1776 hw_info->ulExternalChip = 0;
1777
1778 switch (xgifb_info->hasVB) {
1779 case HASVB_301:
1780 reg = xgifb_reg_get(XGIPART4, 0x01);
1781 if (reg >= 0xE0) {
1782 hw_info->ujVBChipID = VB_CHIP_302LV;
1783 dev_info(&pdev->dev,
1784 "XGI302LV bridge detected (revision 0x%02x)\n",
1785 reg);
1786 } else if (reg >= 0xD0) {
1787 hw_info->ujVBChipID = VB_CHIP_301LV;
1788 dev_info(&pdev->dev,
1789 "XGI301LV bridge detected (revision 0x%02x)\n",
1790 reg);
1791 } else {
1792 hw_info->ujVBChipID = VB_CHIP_301;
1793 dev_info(&pdev->dev, "XGI301 bridge detected\n");
1794 }
1795 break;
1796 case HASVB_302:
1797 reg = xgifb_reg_get(XGIPART4, 0x01);
1798 if (reg >= 0xE0) {
1799 hw_info->ujVBChipID = VB_CHIP_302LV;
1800 dev_info(&pdev->dev,
1801 "XGI302LV bridge detected (revision 0x%02x)\n",
1802 reg);
1803 } else if (reg >= 0xD0) {
1804 hw_info->ujVBChipID = VB_CHIP_301LV;
1805 dev_info(&pdev->dev,
1806 "XGI302LV bridge detected (revision 0x%02x)\n",
1807 reg);
1808 } else if (reg >= 0xB0) {
1809 reg1 = xgifb_reg_get(XGIPART4, 0x23);
1810
1811 hw_info->ujVBChipID = VB_CHIP_302B;
1812
1813 } else {
1814 hw_info->ujVBChipID = VB_CHIP_302;
1815 dev_info(&pdev->dev, "XGI302 bridge detected\n");
1816 }
1817 break;
1818 case HASVB_LVDS:
1819 hw_info->ulExternalChip = 0x1;
1820 dev_info(&pdev->dev, "LVDS transmitter detected\n");
1821 break;
1822 case HASVB_TRUMPION:
1823 hw_info->ulExternalChip = 0x2;
1824 dev_info(&pdev->dev, "Trumpion Zurac LVDS scaler detected\n");
1825 break;
1826 case HASVB_CHRONTEL:
1827 hw_info->ulExternalChip = 0x4;
1828 dev_info(&pdev->dev, "Chrontel TV encoder detected\n");
1829 break;
1830 case HASVB_LVDS_CHRONTEL:
1831 hw_info->ulExternalChip = 0x5;
1832 dev_info(&pdev->dev,
1833 "LVDS transmitter and Chrontel TV encoder detected\n");
1834 break;
1835 default:
1836 dev_info(&pdev->dev, "No or unknown bridge type detected\n");
1837 break;
1838 }
1839
1840 if (xgifb_info->hasVB != HASVB_NONE)
1841 XGIfb_detect_VB(xgifb_info);
1842 else if (xgifb_info->chip != XG21)
1843 xgifb_info->display2 = XGIFB_DISP_NONE;
1844
1845 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
1846 if (!enable_dstn) {
1847 reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
1848 reg &= 0x0f;
1849 hw_info->ulCRT2LCDType = XGI310paneltype[reg];
1850 }
1851 }
1852
1853 xgifb_info->mode_idx = -1;
1854
1855 if (mode)
1856 XGIfb_search_mode(xgifb_info, mode);
1857 else if (vesa != -1)
1858 XGIfb_search_vesamode(xgifb_info, vesa);
1859
1860 if (xgifb_info->mode_idx >= 0)
1861 xgifb_info->mode_idx =
1862 XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
1863
1864 if (xgifb_info->mode_idx < 0) {
1865 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
1866 xgifb_info->chip == XG21)
1867 xgifb_info->mode_idx =
1868 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
1869 else
1870 xgifb_info->mode_idx = DEFAULT_MODE;
1871 }
1872
1873 if (xgifb_info->mode_idx < 0) {
1874 dev_err(&pdev->dev, "No supported video mode found\n");
1875 ret = -EINVAL;
1876 goto error_1;
1877 }
1878
1879 /* set default refresh rate */
1880 xgifb_info->refresh_rate = refresh_rate;
1881 if (xgifb_info->refresh_rate == 0)
1882 xgifb_info->refresh_rate = 60;
1883 if (XGIfb_search_refresh_rate(xgifb_info, xgifb_info->refresh_rate) == 0) {
1884 xgifb_info->rate_idx = 1;
1885 xgifb_info->refresh_rate = 60;
1886 }
1887
1888 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1889 xgifb_info->video_vwidth =
1890 xgifb_info->video_width =
1891 XGIbios_mode[xgifb_info->mode_idx].xres;
1892 xgifb_info->video_vheight =
1893 xgifb_info->video_height =
1894 XGIbios_mode[xgifb_info->mode_idx].yres;
1895 xgifb_info->org_x = 0;
1896 xgifb_info->org_y = 0;
1897 xgifb_info->video_linelength =
1898 xgifb_info->video_width *
1899 (xgifb_info->video_bpp >> 3);
1900 switch (xgifb_info->video_bpp) {
1901 case 8:
1902 xgifb_info->DstColor = 0x0000;
1903 xgifb_info->XGI310_AccelDepth = 0x00000000;
1904 xgifb_info->video_cmap_len = 256;
1905 break;
1906 case 16:
1907 xgifb_info->DstColor = 0x8000;
1908 xgifb_info->XGI310_AccelDepth = 0x00010000;
1909 xgifb_info->video_cmap_len = 16;
1910 break;
1911 case 32:
1912 xgifb_info->DstColor = 0xC000;
1913 xgifb_info->XGI310_AccelDepth = 0x00020000;
1914 xgifb_info->video_cmap_len = 16;
1915 break;
1916 default:
1917 xgifb_info->video_cmap_len = 16;
1918 pr_info("Unsupported depth %d\n",
1919 xgifb_info->video_bpp);
1920 break;
1921 }
1922
1923 pr_info("Default mode is %dx%dx%d (%dHz)\n",
1924 xgifb_info->video_width, xgifb_info->video_height,
1925 xgifb_info->video_bpp, xgifb_info->refresh_rate);
1926
1927 fb_info->var.red.length = 8;
1928 fb_info->var.green.length = 8;
1929 fb_info->var.blue.length = 8;
1930 fb_info->var.activate = FB_ACTIVATE_NOW;
1931 fb_info->var.height = -1;
1932 fb_info->var.width = -1;
1933 fb_info->var.vmode = FB_VMODE_NONINTERLACED;
1934 fb_info->var.xres = xgifb_info->video_width;
1935 fb_info->var.xres_virtual = xgifb_info->video_width;
1936 fb_info->var.yres = xgifb_info->video_height;
1937 fb_info->var.yres_virtual = xgifb_info->video_height;
1938 fb_info->var.bits_per_pixel = xgifb_info->video_bpp;
1939
1940 XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
1941
1942 fb_info->var.pixclock = (u32)(1000000000 / XGIfb_mode_rate_to_dclock
1943 (&xgifb_info->dev_info, hw_info,
1944 XGIbios_mode[xgifb_info->mode_idx].mode_no));
1945
1946 if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info,
1947 hw_info, XGIbios_mode[xgifb_info->mode_idx].mode_no,
1948 &fb_info->var.left_margin,
1949 &fb_info->var.right_margin,
1950 &fb_info->var.upper_margin,
1951 &fb_info->var.lower_margin,
1952 &fb_info->var.hsync_len,
1953 &fb_info->var.vsync_len,
1954 &fb_info->var.sync,
1955 &fb_info->var.vmode)) {
1956 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1957 FB_VMODE_INTERLACED) {
1958 fb_info->var.yres <<= 1;
1959 fb_info->var.yres_virtual <<= 1;
1960 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
1961 FB_VMODE_DOUBLE) {
1962 fb_info->var.pixclock >>= 1;
1963 fb_info->var.yres >>= 1;
1964 fb_info->var.yres_virtual >>= 1;
1965 }
1966 }
1967
1968 fb_info->flags = FBINFO_FLAG_DEFAULT;
1969 fb_info->screen_base = xgifb_info->video_vbase;
1970 fb_info->fbops = &XGIfb_ops;
1971 XGIfb_get_fix(&fb_info->fix, -1, fb_info);
1972 fb_info->pseudo_palette = xgifb_info->pseudo_palette;
1973
1974 fb_alloc_cmap(&fb_info->cmap, 256, 0);
1975
1976 xgifb_info->mtrr = arch_phys_wc_add(xgifb_info->video_base,
1977 xgifb_info->video_size);
1978
1979 if (register_framebuffer(fb_info) < 0) {
1980 ret = -EINVAL;
1981 goto error_mtrr;
1982 }
1983
1984 dumpVGAReg(xgifb_info);
1985
1986 return 0;
1987
1988 error_mtrr:
1989 arch_phys_wc_del(xgifb_info->mtrr);
1990 error_1:
1991 iounmap(xgifb_info->mmio_vbase);
1992 iounmap(xgifb_info->video_vbase);
1993 release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
1994 error_0:
1995 release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
1996 error_disable:
1997 pci_disable_device(pdev);
1998 error:
1999 framebuffer_release(fb_info);
2000 return ret;
2001 }
2002
2003 /* -------------------- PCI DEVICE HANDLING -------------------- */
2004
xgifb_remove(struct pci_dev * pdev)2005 static void xgifb_remove(struct pci_dev *pdev)
2006 {
2007 struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2008 struct fb_info *fb_info = xgifb_info->fb_info;
2009
2010 unregister_framebuffer(fb_info);
2011 arch_phys_wc_del(xgifb_info->mtrr);
2012 iounmap(xgifb_info->mmio_vbase);
2013 iounmap(xgifb_info->video_vbase);
2014 release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2015 release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2016 pci_disable_device(pdev);
2017 framebuffer_release(fb_info);
2018 }
2019
2020 static struct pci_driver xgifb_driver = {
2021 .name = "xgifb",
2022 .id_table = xgifb_pci_table,
2023 .probe = xgifb_probe,
2024 .remove = xgifb_remove
2025 };
2026
2027 /* -------------------- MODULE -------------------- */
2028
2029 module_param(mode, charp, 0000);
2030 MODULE_PARM_DESC(mode,
2031 "Selects the desired default display mode in the format XxYxDepth (eg. 1024x768x16).");
2032
2033 module_param(forcecrt2type, charp, 0000);
2034 MODULE_PARM_DESC(forcecrt2type,
2035 "Force the second display output type. Possible values are NONE, LCD, TV, VGA, SVIDEO or COMPOSITE.");
2036
2037 module_param(vesa, int, 0000);
2038 MODULE_PARM_DESC(vesa,
2039 "Selects the desired default display mode by VESA mode number (eg. 0x117).");
2040
2041 module_param(filter, int, 0000);
2042 MODULE_PARM_DESC(filter,
2043 "Selects TV flicker filter type (only for systems with a SiS301 video bridge). Possible values 0-7. Default: [no filter]).");
2044
xgifb_init(void)2045 static int __init xgifb_init(void)
2046 {
2047 char *option = NULL;
2048
2049 if (forcecrt2type)
2050 XGIfb_search_crt2type(forcecrt2type);
2051 if (fb_get_options("xgifb", &option))
2052 return -ENODEV;
2053 XGIfb_setup(option);
2054
2055 return pci_register_driver(&xgifb_driver);
2056 }
2057
xgifb_remove_module(void)2058 static void __exit xgifb_remove_module(void)
2059 {
2060 pci_unregister_driver(&xgifb_driver);
2061 pr_debug("Module unloaded\n");
2062 }
2063
2064 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2065 MODULE_LICENSE("GPL");
2066 MODULE_AUTHOR("XGITECH , Others");
2067 module_init(xgifb_init);
2068 module_exit(xgifb_remove_module);
2069