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 /* #include <linux/config.h> */
8 #include <linux/module.h>
9 #include <linux/moduleparam.h>
10 #include <linux/kernel.h>
11 #include <linux/spinlock.h>
12 #include <linux/errno.h>
13 #include <linux/string.h>
14 #include <linux/mm.h>
15 #include <linux/tty.h>
16 #include <linux/slab.h>
17 #include <linux/delay.h>
18 #include <linux/fb.h>
19 #include <linux/console.h>
20 #include <linux/selection.h>
21 #include <linux/ioport.h>
22 #include <linux/init.h>
23 #include <linux/pci.h>
24 #include <linux/vt_kern.h>
25 #include <linux/capability.h>
26 #include <linux/fs.h>
27 #include <linux/types.h>
28 #include <linux/proc_fs.h>
29
30 #include <linux/io.h>
31 #ifdef CONFIG_MTRR
32 #include <asm/mtrr.h>
33 #endif
34
35 #include "XGIfb.h"
36 #include "vgatypes.h"
37 #include "XGI_main.h"
38 #include "vb_init.h"
39 #include "vb_util.h"
40 #include "vb_setmode.h"
41
42 #define Index_CR_GPIO_Reg1 0x48
43 #define Index_CR_GPIO_Reg3 0x4a
44
45 #define GPIOG_EN (1<<6)
46 #define GPIOG_READ (1<<1)
47
48 static char *forcecrt2type;
49 static char *mode;
50 static int vesa = -1;
51 static unsigned int refresh_rate;
52
53 /* -------------------- Macro definitions ---------------------------- */
54
55 #undef XGIFBDEBUG
56
57 #ifdef XGIFBDEBUG
58 #define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
59 #else
60 #define DPRINTK(fmt, args...)
61 #endif
62
63 #ifdef XGIFBDEBUG
dumpVGAReg(void)64 static void dumpVGAReg(void)
65 {
66 u8 i, reg;
67
68 xgifb_reg_set(XGISR, 0x05, 0x86);
69 /*
70 xgifb_reg_set(XGISR, 0x08, 0x4f);
71 xgifb_reg_set(XGISR, 0x0f, 0x20);
72 xgifb_reg_set(XGISR, 0x11, 0x4f);
73 xgifb_reg_set(XGISR, 0x13, 0x45);
74 xgifb_reg_set(XGISR, 0x14, 0x51);
75 xgifb_reg_set(XGISR, 0x1e, 0x41);
76 xgifb_reg_set(XGISR, 0x1f, 0x0);
77 xgifb_reg_set(XGISR, 0x20, 0xa1);
78 xgifb_reg_set(XGISR, 0x22, 0xfb);
79 xgifb_reg_set(XGISR, 0x26, 0x22);
80 xgifb_reg_set(XGISR, 0x3e, 0x07);
81 */
82
83 /* xgifb_reg_set(XGICR, 0x19, 0x00); */
84 /* xgifb_reg_set(XGICR, 0x1a, 0x3C); */
85 /* xgifb_reg_set(XGICR, 0x22, 0xff); */
86 /* xgifb_reg_set(XGICR, 0x3D, 0x10); */
87
88 /* xgifb_reg_set(XGICR, 0x4a, 0xf3); */
89
90 /* xgifb_reg_set(XGICR, 0x57, 0x0); */
91 /* xgifb_reg_set(XGICR, 0x7a, 0x2c); */
92
93 /* xgifb_reg_set(XGICR, 0x82, 0xcc); */
94 /* xgifb_reg_set(XGICR, 0x8c, 0x0); */
95 /*
96 xgifb_reg_set(XGICR, 0x99, 0x1);
97 xgifb_reg_set(XGICR, 0x41, 0x40);
98 */
99
100 for (i = 0; i < 0x4f; i++) {
101 reg = xgifb_reg_get(XGISR, i);
102 printk("\no 3c4 %x", i);
103 printk("\ni 3c5 => %x", reg);
104 }
105
106 for (i = 0; i < 0xF0; i++) {
107 reg = xgifb_reg_get(XGICR, i);
108 printk("\no 3d4 %x", i);
109 printk("\ni 3d5 => %x", reg);
110 }
111 /*
112 xgifb_reg_set(XGIPART1,0x2F,1);
113 for (i=1; i < 0x50; i++) {
114 reg = xgifb_reg_get(XGIPART1, i);
115 printk("\no d004 %x", i);
116 printk("\ni d005 => %x", reg);
117 }
118
119 for (i=0; i < 0x50; i++) {
120 reg = xgifb_reg_get(XGIPART2, i);
121 printk("\no d010 %x", i);
122 printk("\ni d011 => %x", reg);
123 }
124 for (i=0; i < 0x50; i++) {
125 reg = xgifb_reg_get(XGIPART3, i);
126 printk("\no d012 %x",i);
127 printk("\ni d013 => %x",reg);
128 }
129 for (i=0; i < 0x50; i++) {
130 reg = xgifb_reg_get(XGIPART4, i);
131 printk("\no d014 %x",i);
132 printk("\ni d015 => %x",reg);
133 }
134 */
135 }
136 #else
dumpVGAReg(void)137 static inline void dumpVGAReg(void)
138 {
139 }
140 #endif
141
142 #if 1
143 #define DEBUGPRN(x)
144 #else
145 #define DEBUGPRN(x) printk(KERN_INFO x "\n");
146 #endif
147
148 /* --------------- Hardware Access Routines -------------------------- */
149
XGIfb_mode_rate_to_dclock(struct vb_device_info * XGI_Pr,struct xgi_hw_device_info * HwDeviceExtension,unsigned char modeno,unsigned char rateindex)150 static int XGIfb_mode_rate_to_dclock(struct vb_device_info *XGI_Pr,
151 struct xgi_hw_device_info *HwDeviceExtension,
152 unsigned char modeno, unsigned char rateindex)
153 {
154 unsigned short ModeNo = modeno;
155 unsigned short ModeIdIndex = 0, ClockIndex = 0;
156 unsigned short RefreshRateTableIndex = 0;
157
158 /* unsigned long temp = 0; */
159 int Clock;
160 InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
161
162 RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
163 ModeIdIndex, XGI_Pr);
164
165 /*
166 temp = XGI_SearchModeID(ModeNo , &ModeIdIndex, XGI_Pr) ;
167 if (!temp) {
168 printk(KERN_ERR "Could not find mode %x\n", ModeNo);
169 return 65000;
170 }
171
172 RefreshRateTableIndex = XGI_Pr->EModeIDTable[ModeIdIndex].REFindex;
173 RefreshRateTableIndex += (rateindex - 1);
174
175 */
176 ClockIndex = XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
177
178 Clock = XGI_Pr->VCLKData[ClockIndex].CLOCK * 1000;
179
180 return Clock;
181 }
182
XGIfb_mode_rate_to_ddata(struct vb_device_info * XGI_Pr,struct xgi_hw_device_info * HwDeviceExtension,unsigned char modeno,unsigned char rateindex,u32 * left_margin,u32 * right_margin,u32 * upper_margin,u32 * lower_margin,u32 * hsync_len,u32 * vsync_len,u32 * sync,u32 * vmode)183 static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
184 struct xgi_hw_device_info *HwDeviceExtension,
185 unsigned char modeno, unsigned char rateindex,
186 u32 *left_margin, u32 *right_margin, u32 *upper_margin,
187 u32 *lower_margin, u32 *hsync_len, u32 *vsync_len, u32 *sync,
188 u32 *vmode)
189 {
190 unsigned short ModeNo = modeno;
191 unsigned short ModeIdIndex = 0, index = 0;
192 unsigned short RefreshRateTableIndex = 0;
193
194 unsigned short VRE, VBE, VRS, VBS, VDE, VT;
195 unsigned short HRE, HBE, HRS, HBS, HDE, HT;
196 unsigned char sr_data, cr_data, cr_data2;
197 unsigned long cr_data3;
198 int A, B, C, D, E, F, temp, j;
199 InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
200 RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
201 ModeIdIndex, XGI_Pr);
202 /*
203 temp = XGI_SearchModeID(ModeNo, &ModeIdIndex, XGI_Pr);
204 if (!temp)
205 return 0;
206
207 RefreshRateTableIndex = XGI_Pr->EModeIDTable[ModeIdIndex].REFindex;
208 RefreshRateTableIndex += (rateindex - 1);
209 */
210 index = XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC;
211
212 sr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[5];
213
214 cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[0];
215
216 /* Horizontal total */
217 HT = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x03) << 8);
218 A = HT + 5;
219
220 /*
221 cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[1];
222
223 Horizontal display enable end
224 HDE = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x0C) << 6);
225 */
226 HDE = (XGI_Pr->RefIndex[RefreshRateTableIndex].XRes >> 3) - 1;
227 E = HDE + 1;
228
229 cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[3];
230
231 /* Horizontal retrace (=sync) start */
232 HRS = (cr_data & 0xff) | ((unsigned short) (sr_data & 0xC0) << 2);
233 F = HRS - E - 3;
234
235 cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[1];
236
237 /* Horizontal blank start */
238 HBS = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x30) << 4);
239
240 sr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[6];
241
242 cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[2];
243
244 cr_data2 = XGI_Pr->XGINEWUB_CRT1Table[index].CR[4];
245
246 /* Horizontal blank end */
247 HBE = (cr_data & 0x1f) | ((unsigned short) (cr_data2 & 0x80) >> 2)
248 | ((unsigned short) (sr_data & 0x03) << 6);
249
250 /* Horizontal retrace (=sync) end */
251 HRE = (cr_data2 & 0x1f) | ((sr_data & 0x04) << 3);
252
253 temp = HBE - ((E - 1) & 255);
254 B = (temp > 0) ? temp : (temp + 256);
255
256 temp = HRE - ((E + F + 3) & 63);
257 C = (temp > 0) ? temp : (temp + 64);
258
259 D = B - F - C;
260
261 *left_margin = D * 8;
262 *right_margin = F * 8;
263 *hsync_len = C * 8;
264
265 sr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[14];
266
267 cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[8];
268
269 cr_data2 = XGI_Pr->XGINEWUB_CRT1Table[index].CR[9];
270
271 /* Vertical total */
272 VT = (cr_data & 0xFF) | ((unsigned short) (cr_data2 & 0x01) << 8)
273 | ((unsigned short) (cr_data2 & 0x20) << 4)
274 | ((unsigned short) (sr_data & 0x01) << 10);
275 A = VT + 2;
276
277 /* cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[10]; */
278
279 /* Vertical display enable end */
280 /*
281 VDE = (cr_data & 0xff) |
282 ((unsigned short) (cr_data2 & 0x02) << 7) |
283 ((unsigned short) (cr_data2 & 0x40) << 3) |
284 ((unsigned short) (sr_data & 0x02) << 9);
285 */
286 VDE = XGI_Pr->RefIndex[RefreshRateTableIndex].YRes - 1;
287 E = VDE + 1;
288
289 cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[10];
290
291 /* Vertical retrace (=sync) start */
292 VRS = (cr_data & 0xff) | ((unsigned short) (cr_data2 & 0x04) << 6)
293 | ((unsigned short) (cr_data2 & 0x80) << 2)
294 | ((unsigned short) (sr_data & 0x08) << 7);
295 F = VRS + 1 - E;
296
297 cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[12];
298
299 cr_data3 = (XGI_Pr->XGINEWUB_CRT1Table[index].CR[14] & 0x80) << 5;
300
301 /* Vertical blank start */
302 VBS = (cr_data & 0xff) | ((unsigned short) (cr_data2 & 0x08) << 5)
303 | ((unsigned short) (cr_data3 & 0x20) << 4)
304 | ((unsigned short) (sr_data & 0x04) << 8);
305
306 cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[13];
307
308 /* Vertical blank end */
309 VBE = (cr_data & 0xff) | ((unsigned short) (sr_data & 0x10) << 4);
310 temp = VBE - ((E - 1) & 511);
311 B = (temp > 0) ? temp : (temp + 512);
312
313 cr_data = XGI_Pr->XGINEWUB_CRT1Table[index].CR[11];
314
315 /* Vertical retrace (=sync) end */
316 VRE = (cr_data & 0x0f) | ((sr_data & 0x20) >> 1);
317 temp = VRE - ((E + F - 1) & 31);
318 C = (temp > 0) ? temp : (temp + 32);
319
320 D = B - F - C;
321
322 *upper_margin = D;
323 *lower_margin = F;
324 *vsync_len = C;
325
326 if (XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x8000)
327 *sync &= ~FB_SYNC_VERT_HIGH_ACT;
328 else
329 *sync |= FB_SYNC_VERT_HIGH_ACT;
330
331 if (XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x4000)
332 *sync &= ~FB_SYNC_HOR_HIGH_ACT;
333 else
334 *sync |= FB_SYNC_HOR_HIGH_ACT;
335
336 *vmode = FB_VMODE_NONINTERLACED;
337 if (XGI_Pr->RefIndex[RefreshRateTableIndex].Ext_InfoFlag & 0x0080)
338 *vmode = FB_VMODE_INTERLACED;
339 else {
340 j = 0;
341 while (XGI_Pr->EModeIDTable[j].Ext_ModeID != 0xff) {
342 if (XGI_Pr->EModeIDTable[j].Ext_ModeID ==
343 XGI_Pr->RefIndex[RefreshRateTableIndex].ModeID) {
344 if (XGI_Pr->EModeIDTable[j].Ext_ModeFlag &
345 DoubleScanMode) {
346 *vmode = FB_VMODE_DOUBLE;
347 }
348 break;
349 }
350 j++;
351 }
352 }
353
354 return 1;
355 }
356
XGIRegInit(struct vb_device_info * XGI_Pr,unsigned long BaseAddr)357 static void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
358 {
359 XGI_Pr->RelIO = BaseAddr;
360 XGI_Pr->P3c4 = BaseAddr + 0x14;
361 XGI_Pr->P3d4 = BaseAddr + 0x24;
362 XGI_Pr->P3c0 = BaseAddr + 0x10;
363 XGI_Pr->P3ce = BaseAddr + 0x1e;
364 XGI_Pr->P3c2 = BaseAddr + 0x12;
365 XGI_Pr->P3ca = BaseAddr + 0x1a;
366 XGI_Pr->P3c6 = BaseAddr + 0x16;
367 XGI_Pr->P3c7 = BaseAddr + 0x17;
368 XGI_Pr->P3c8 = BaseAddr + 0x18;
369 XGI_Pr->P3c9 = BaseAddr + 0x19;
370 XGI_Pr->P3da = BaseAddr + 0x2A;
371 /* Digital video interface registers (LCD) */
372 XGI_Pr->Part1Port = BaseAddr + XGI_CRT2_PORT_04;
373 /* 301 TV Encoder registers */
374 XGI_Pr->Part2Port = BaseAddr + XGI_CRT2_PORT_10;
375 /* 301 Macrovision registers */
376 XGI_Pr->Part3Port = BaseAddr + XGI_CRT2_PORT_12;
377 /* 301 VGA2 (and LCD) registers */
378 XGI_Pr->Part4Port = BaseAddr + XGI_CRT2_PORT_14;
379 /* 301 palette address port registers */
380 XGI_Pr->Part5Port = BaseAddr + XGI_CRT2_PORT_14 + 2;
381
382 }
383
384 /* ------------------ Internal helper routines ----------------- */
385
XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info * xgifb_info)386 static int XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info *xgifb_info)
387 {
388
389 int found_mode = 0;
390 int XGIfb_mode_idx = 0;
391
392 found_mode = 0;
393 while ((XGIbios_mode[XGIfb_mode_idx].mode_no != 0)
394 && (XGIbios_mode[XGIfb_mode_idx].xres
395 <= xgifb_info->lvds_data.LVDSHDE)) {
396 if ((XGIbios_mode[XGIfb_mode_idx].xres
397 == xgifb_info->lvds_data.LVDSHDE)
398 && (XGIbios_mode[XGIfb_mode_idx].yres
399 == xgifb_info->lvds_data.LVDSVDE)
400 && (XGIbios_mode[XGIfb_mode_idx].bpp == 8)) {
401 found_mode = 1;
402 break;
403 }
404 XGIfb_mode_idx++;
405 }
406 if (!found_mode)
407 XGIfb_mode_idx = -1;
408
409 return XGIfb_mode_idx;
410 }
411
XGIfb_search_mode(struct xgifb_video_info * xgifb_info,const char * name)412 static void XGIfb_search_mode(struct xgifb_video_info *xgifb_info,
413 const char *name)
414 {
415 int i = 0, j = 0, l;
416
417 while (XGIbios_mode[i].mode_no != 0) {
418 l = min(strlen(name), strlen(XGIbios_mode[i].name));
419 if (!strncmp(name, XGIbios_mode[i].name, l)) {
420 xgifb_info->mode_idx = i;
421 j = 1;
422 break;
423 }
424 i++;
425 }
426 if (!j)
427 printk(KERN_INFO "XGIfb: Invalid mode '%s'\n", name);
428 }
429
XGIfb_search_vesamode(struct xgifb_video_info * xgifb_info,unsigned int vesamode)430 static void XGIfb_search_vesamode(struct xgifb_video_info *xgifb_info,
431 unsigned int vesamode)
432 {
433 int i = 0, j = 0;
434
435 if (vesamode == 0)
436 goto invalid;
437
438 vesamode &= 0x1dff; /* Clean VESA mode number from other flags */
439
440 while (XGIbios_mode[i].mode_no != 0) {
441 if ((XGIbios_mode[i].vesa_mode_no_1 == vesamode) ||
442 (XGIbios_mode[i].vesa_mode_no_2 == vesamode)) {
443 xgifb_info->mode_idx = i;
444 j = 1;
445 break;
446 }
447 i++;
448 }
449
450 invalid:
451 if (!j)
452 printk(KERN_INFO "XGIfb: Invalid VESA mode 0x%x'\n", vesamode);
453 }
454
XGIfb_validate_mode(struct xgifb_video_info * xgifb_info,int myindex)455 static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
456 {
457 u16 xres, yres;
458 struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
459
460 if (xgifb_info->chip == XG21) {
461 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
462 xres = xgifb_info->lvds_data.LVDSHDE;
463 yres = xgifb_info->lvds_data.LVDSVDE;
464 if (XGIbios_mode[myindex].xres > xres)
465 return -1;
466 if (XGIbios_mode[myindex].yres > yres)
467 return -1;
468 if ((XGIbios_mode[myindex].xres < xres) &&
469 (XGIbios_mode[myindex].yres < yres)) {
470 if (XGIbios_mode[myindex].bpp > 8)
471 return -1;
472 }
473
474 }
475 return myindex;
476
477 }
478
479 /* FIXME: for now, all is valid on XG27 */
480 if (xgifb_info->chip == XG27)
481 return myindex;
482
483 if (!(XGIbios_mode[myindex].chipset & MD_XGI315))
484 return -1;
485
486 switch (xgifb_info->display2) {
487 case XGIFB_DISP_LCD:
488 switch (hw_info->ulCRT2LCDType) {
489 case LCD_640x480:
490 xres = 640;
491 yres = 480;
492 break;
493 case LCD_800x600:
494 xres = 800;
495 yres = 600;
496 break;
497 case LCD_1024x600:
498 xres = 1024;
499 yres = 600;
500 break;
501 case LCD_1024x768:
502 xres = 1024;
503 yres = 768;
504 break;
505 case LCD_1152x768:
506 xres = 1152;
507 yres = 768;
508 break;
509 case LCD_1280x960:
510 xres = 1280;
511 yres = 960;
512 break;
513 case LCD_1280x768:
514 xres = 1280;
515 yres = 768;
516 break;
517 case LCD_1280x1024:
518 xres = 1280;
519 yres = 1024;
520 break;
521 case LCD_1400x1050:
522 xres = 1400;
523 yres = 1050;
524 break;
525 case LCD_1600x1200:
526 xres = 1600;
527 yres = 1200;
528 break;
529 /* case LCD_320x480: */ /* TW: FSTN */
530 /*
531 xres = 320;
532 yres = 480;
533 break;
534 */
535 default:
536 xres = 0;
537 yres = 0;
538 break;
539 }
540 if (XGIbios_mode[myindex].xres > xres)
541 return -1;
542 if (XGIbios_mode[myindex].yres > yres)
543 return -1;
544 if ((hw_info->ulExternalChip == 0x01) || /* LVDS */
545 (hw_info->ulExternalChip == 0x05)) { /* LVDS+Chrontel */
546 switch (XGIbios_mode[myindex].xres) {
547 case 512:
548 if (XGIbios_mode[myindex].yres != 512)
549 return -1;
550 if (hw_info->ulCRT2LCDType == LCD_1024x600)
551 return -1;
552 break;
553 case 640:
554 if ((XGIbios_mode[myindex].yres != 400)
555 && (XGIbios_mode[myindex].yres
556 != 480))
557 return -1;
558 break;
559 case 800:
560 if (XGIbios_mode[myindex].yres != 600)
561 return -1;
562 break;
563 case 1024:
564 if ((XGIbios_mode[myindex].yres != 600) &&
565 (XGIbios_mode[myindex].yres != 768))
566 return -1;
567 if ((XGIbios_mode[myindex].yres == 600) &&
568 (hw_info->ulCRT2LCDType != LCD_1024x600))
569 return -1;
570 break;
571 case 1152:
572 if ((XGIbios_mode[myindex].yres) != 768)
573 return -1;
574 if (hw_info->ulCRT2LCDType != LCD_1152x768)
575 return -1;
576 break;
577 case 1280:
578 if ((XGIbios_mode[myindex].yres != 768) &&
579 (XGIbios_mode[myindex].yres != 1024))
580 return -1;
581 if ((XGIbios_mode[myindex].yres == 768) &&
582 (hw_info->ulCRT2LCDType != LCD_1280x768))
583 return -1;
584 break;
585 case 1400:
586 if (XGIbios_mode[myindex].yres != 1050)
587 return -1;
588 break;
589 case 1600:
590 if (XGIbios_mode[myindex].yres != 1200)
591 return -1;
592 break;
593 default:
594 return -1;
595 }
596 } else {
597 switch (XGIbios_mode[myindex].xres) {
598 case 512:
599 if (XGIbios_mode[myindex].yres != 512)
600 return -1;
601 break;
602 case 640:
603 if ((XGIbios_mode[myindex].yres != 400) &&
604 (XGIbios_mode[myindex].yres != 480))
605 return -1;
606 break;
607 case 800:
608 if (XGIbios_mode[myindex].yres != 600)
609 return -1;
610 break;
611 case 1024:
612 if (XGIbios_mode[myindex].yres != 768)
613 return -1;
614 break;
615 case 1280:
616 if ((XGIbios_mode[myindex].yres != 960) &&
617 (XGIbios_mode[myindex].yres != 1024))
618 return -1;
619 if (XGIbios_mode[myindex].yres == 960) {
620 if (hw_info->ulCRT2LCDType ==
621 LCD_1400x1050)
622 return -1;
623 }
624 break;
625 case 1400:
626 if (XGIbios_mode[myindex].yres != 1050)
627 return -1;
628 break;
629 case 1600:
630 if (XGIbios_mode[myindex].yres != 1200)
631 return -1;
632 break;
633 default:
634 return -1;
635 }
636 }
637 break;
638 case XGIFB_DISP_TV:
639 switch (XGIbios_mode[myindex].xres) {
640 case 512:
641 case 640:
642 case 800:
643 break;
644 case 720:
645 if (xgifb_info->TV_type == TVMODE_NTSC) {
646 if (XGIbios_mode[myindex].yres != 480)
647 return -1;
648 } else if (xgifb_info->TV_type == TVMODE_PAL) {
649 if (XGIbios_mode[myindex].yres != 576)
650 return -1;
651 }
652 /* TW: LVDS/CHRONTEL does not support 720 */
653 if (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL ||
654 xgifb_info->hasVB == HASVB_CHRONTEL) {
655 return -1;
656 }
657 break;
658 case 1024:
659 if (xgifb_info->TV_type == TVMODE_NTSC) {
660 if (XGIbios_mode[myindex].bpp == 32)
661 return -1;
662 }
663 break;
664 default:
665 return -1;
666 }
667 break;
668 case XGIFB_DISP_CRT:
669 if (XGIbios_mode[myindex].xres > 1280)
670 return -1;
671 break;
672 case XGIFB_DISP_NONE:
673 break;
674 }
675 return myindex;
676
677 }
678
XGIfb_search_crt2type(const char * name)679 static void XGIfb_search_crt2type(const char *name)
680 {
681 int i = 0;
682
683 if (name == NULL)
684 return;
685
686 while (XGI_crt2type[i].type_no != -1) {
687 if (!strcmp(name, XGI_crt2type[i].name)) {
688 XGIfb_crt2type = XGI_crt2type[i].type_no;
689 XGIfb_tvplug = XGI_crt2type[i].tvplug_no;
690 break;
691 }
692 i++;
693 }
694 if (XGIfb_crt2type < 0)
695 printk(KERN_INFO "XGIfb: Invalid CRT2 type: %s\n", name);
696 }
697
XGIfb_search_refresh_rate(struct xgifb_video_info * xgifb_info,unsigned int rate)698 static u8 XGIfb_search_refresh_rate(struct xgifb_video_info *xgifb_info,
699 unsigned int rate)
700 {
701 u16 xres, yres;
702 int i = 0;
703
704 xres = XGIbios_mode[xgifb_info->mode_idx].xres;
705 yres = XGIbios_mode[xgifb_info->mode_idx].yres;
706
707 xgifb_info->rate_idx = 0;
708 while ((XGIfb_vrate[i].idx != 0) && (XGIfb_vrate[i].xres <= xres)) {
709 if ((XGIfb_vrate[i].xres == xres) &&
710 (XGIfb_vrate[i].yres == yres)) {
711 if (XGIfb_vrate[i].refresh == rate) {
712 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
713 break;
714 } else if (XGIfb_vrate[i].refresh > rate) {
715 if ((XGIfb_vrate[i].refresh - rate) <= 3) {
716 DPRINTK("XGIfb: Adjusting rate from %d up to %d\n",
717 rate, XGIfb_vrate[i].refresh);
718 xgifb_info->rate_idx =
719 XGIfb_vrate[i].idx;
720 xgifb_info->refresh_rate =
721 XGIfb_vrate[i].refresh;
722 } else if (((rate - XGIfb_vrate[i - 1].refresh)
723 <= 2) && (XGIfb_vrate[i].idx
724 != 1)) {
725 DPRINTK("XGIfb: Adjusting rate from %d down to %d\n",
726 rate, XGIfb_vrate[i-1].refresh);
727 xgifb_info->rate_idx =
728 XGIfb_vrate[i - 1].idx;
729 xgifb_info->refresh_rate =
730 XGIfb_vrate[i - 1].refresh;
731 }
732 break;
733 } else if ((rate - XGIfb_vrate[i].refresh) <= 2) {
734 DPRINTK("XGIfb: Adjusting rate from %d down to %d\n",
735 rate, XGIfb_vrate[i].refresh);
736 xgifb_info->rate_idx = XGIfb_vrate[i].idx;
737 break;
738 }
739 }
740 i++;
741 }
742 if (xgifb_info->rate_idx > 0) {
743 return xgifb_info->rate_idx;
744 } else {
745 printk(KERN_INFO "XGIfb: Unsupported rate %d for %dx%d\n",
746 rate, xres, yres);
747 return 0;
748 }
749 }
750
XGIfb_search_tvstd(const char * name)751 static void XGIfb_search_tvstd(const char *name)
752 {
753 int i = 0;
754
755 if (name == NULL)
756 return;
757
758 while (XGI_tvtype[i].type_no != -1) {
759 if (!strcmp(name, XGI_tvtype[i].name)) {
760 XGIfb_tvmode = XGI_tvtype[i].type_no;
761 break;
762 }
763 i++;
764 }
765 }
766
767 /* ----------- FBDev related routines for all series ----------- */
768
XGIfb_bpp_to_var(struct xgifb_video_info * xgifb_info,struct fb_var_screeninfo * var)769 static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info,
770 struct fb_var_screeninfo *var)
771 {
772 switch (var->bits_per_pixel) {
773 case 8:
774 var->red.offset = var->green.offset = var->blue.offset = 0;
775 var->red.length = var->green.length = var->blue.length = 6;
776 xgifb_info->video_cmap_len = 256;
777 break;
778 case 16:
779 var->red.offset = 11;
780 var->red.length = 5;
781 var->green.offset = 5;
782 var->green.length = 6;
783 var->blue.offset = 0;
784 var->blue.length = 5;
785 var->transp.offset = 0;
786 var->transp.length = 0;
787 xgifb_info->video_cmap_len = 16;
788 break;
789 case 32:
790 var->red.offset = 16;
791 var->red.length = 8;
792 var->green.offset = 8;
793 var->green.length = 8;
794 var->blue.offset = 0;
795 var->blue.length = 8;
796 var->transp.offset = 24;
797 var->transp.length = 8;
798 xgifb_info->video_cmap_len = 16;
799 break;
800 }
801 }
802
803 /* --------------------- SetMode routines ------------------------- */
804
XGIfb_pre_setmode(struct xgifb_video_info * xgifb_info)805 static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info)
806 {
807 u8 cr30 = 0, cr31 = 0;
808
809 cr31 = xgifb_reg_get(XGICR, 0x31);
810 cr31 &= ~0x60;
811
812 switch (xgifb_info->display2) {
813 case XGIFB_DISP_CRT:
814 cr30 = (XGI_VB_OUTPUT_CRT2 | XGI_SIMULTANEOUS_VIEW_ENABLE);
815 cr31 |= XGI_DRIVER_MODE;
816 break;
817 case XGIFB_DISP_LCD:
818 cr30 = (XGI_VB_OUTPUT_LCD | XGI_SIMULTANEOUS_VIEW_ENABLE);
819 cr31 |= XGI_DRIVER_MODE;
820 break;
821 case XGIFB_DISP_TV:
822 if (xgifb_info->TV_type == TVMODE_HIVISION)
823 cr30 = (XGI_VB_OUTPUT_HIVISION
824 | XGI_SIMULTANEOUS_VIEW_ENABLE);
825 else if (xgifb_info->TV_plug == TVPLUG_SVIDEO)
826 cr30 = (XGI_VB_OUTPUT_SVIDEO
827 | XGI_SIMULTANEOUS_VIEW_ENABLE);
828 else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE)
829 cr30 = (XGI_VB_OUTPUT_COMPOSITE
830 | XGI_SIMULTANEOUS_VIEW_ENABLE);
831 else if (xgifb_info->TV_plug == TVPLUG_SCART)
832 cr30 = (XGI_VB_OUTPUT_SCART
833 | XGI_SIMULTANEOUS_VIEW_ENABLE);
834 cr31 |= XGI_DRIVER_MODE;
835
836 if (XGIfb_tvmode == 1 || xgifb_info->TV_type == TVMODE_PAL)
837 cr31 |= 0x01;
838 else
839 cr31 &= ~0x01;
840 break;
841 default: /* disable CRT2 */
842 cr30 = 0x00;
843 cr31 |= (XGI_DRIVER_MODE | XGI_VB_OUTPUT_DISABLE);
844 }
845
846 xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30);
847 xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31);
848 xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33,
849 (xgifb_info->rate_idx & 0x0F));
850 }
851
XGIfb_post_setmode(struct xgifb_video_info * xgifb_info)852 static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
853 {
854 u8 reg;
855 unsigned char doit = 1;
856 /*
857 xgifb_reg_set(XGISR,IND_XGI_PASSWORD,XGI_PASSWORD);
858 xgifb_reg_set(XGICR, 0x13, 0x00);
859 xgifb_reg_and_or(XGISR,0x0E, 0xF0, 0x01);
860 *test*
861 */
862 if (xgifb_info->video_bpp == 8) {
863 /* TW: We can't switch off CRT1 on LVDS/Chrontel
864 * in 8bpp Modes */
865 if ((xgifb_info->hasVB == HASVB_LVDS) ||
866 (xgifb_info->hasVB == HASVB_LVDS_CHRONTEL)) {
867 doit = 0;
868 }
869 /* TW: We can't switch off CRT1 on 301B-DH
870 * in 8bpp Modes if using LCD */
871 if (xgifb_info->display2 == XGIFB_DISP_LCD)
872 doit = 0;
873 }
874
875 /* TW: We can't switch off CRT1 if bridge is in slave mode */
876 if (xgifb_info->hasVB != HASVB_NONE) {
877 reg = xgifb_reg_get(XGIPART1, 0x00);
878
879 if ((reg & 0x50) == 0x10)
880 doit = 0;
881
882 } else {
883 XGIfb_crt1off = 0;
884 }
885
886 reg = xgifb_reg_get(XGICR, 0x17);
887 if ((XGIfb_crt1off) && (doit))
888 reg &= ~0x80;
889 else
890 reg |= 0x80;
891 xgifb_reg_set(XGICR, 0x17, reg);
892
893 xgifb_reg_and(XGISR, IND_XGI_RAMDAC_CONTROL, ~0x04);
894
895 if (xgifb_info->display2 == XGIFB_DISP_TV &&
896 xgifb_info->hasVB == HASVB_301) {
897
898 reg = xgifb_reg_get(XGIPART4, 0x01);
899
900 if (reg < 0xB0) { /* Set filter for XGI301 */
901 int filter_tb;
902
903 switch (xgifb_info->video_width) {
904 case 320:
905 filter_tb = (xgifb_info->TV_type ==
906 TVMODE_NTSC) ? 4 : 12;
907 break;
908 case 640:
909 filter_tb = (xgifb_info->TV_type ==
910 TVMODE_NTSC) ? 5 : 13;
911 break;
912 case 720:
913 filter_tb = (xgifb_info->TV_type ==
914 TVMODE_NTSC) ? 6 : 14;
915 break;
916 case 800:
917 filter_tb = (xgifb_info->TV_type ==
918 TVMODE_NTSC) ? 7 : 15;
919 break;
920 default:
921 filter_tb = 0;
922 filter = -1;
923 break;
924 }
925 xgifb_reg_or(XGIPART1,
926 IND_XGI_CRT2_WRITE_ENABLE_315,
927 0x01);
928
929 if (xgifb_info->TV_type == TVMODE_NTSC) {
930
931 xgifb_reg_and(XGIPART2, 0x3a, 0x1f);
932
933 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
934
935 xgifb_reg_and(XGIPART2, 0x30, 0xdf);
936
937 } else if (xgifb_info->TV_plug
938 == TVPLUG_COMPOSITE) {
939
940 xgifb_reg_or(XGIPART2, 0x30, 0x20);
941
942 switch (xgifb_info->video_width) {
943 case 640:
944 xgifb_reg_set(XGIPART2,
945 0x35,
946 0xEB);
947 xgifb_reg_set(XGIPART2,
948 0x36,
949 0x04);
950 xgifb_reg_set(XGIPART2,
951 0x37,
952 0x25);
953 xgifb_reg_set(XGIPART2,
954 0x38,
955 0x18);
956 break;
957 case 720:
958 xgifb_reg_set(XGIPART2,
959 0x35,
960 0xEE);
961 xgifb_reg_set(XGIPART2,
962 0x36,
963 0x0C);
964 xgifb_reg_set(XGIPART2,
965 0x37,
966 0x22);
967 xgifb_reg_set(XGIPART2,
968 0x38,
969 0x08);
970 break;
971 case 800:
972 xgifb_reg_set(XGIPART2,
973 0x35,
974 0xEB);
975 xgifb_reg_set(XGIPART2,
976 0x36,
977 0x15);
978 xgifb_reg_set(XGIPART2,
979 0x37,
980 0x25);
981 xgifb_reg_set(XGIPART2,
982 0x38,
983 0xF6);
984 break;
985 }
986 }
987
988 } else if (xgifb_info->TV_type == TVMODE_PAL) {
989
990 xgifb_reg_and(XGIPART2, 0x3A, 0x1F);
991
992 if (xgifb_info->TV_plug == TVPLUG_SVIDEO) {
993
994 xgifb_reg_and(XGIPART2, 0x30, 0xDF);
995
996 } else if (xgifb_info->TV_plug
997 == TVPLUG_COMPOSITE) {
998
999 xgifb_reg_or(XGIPART2, 0x30, 0x20);
1000
1001 switch (xgifb_info->video_width) {
1002 case 640:
1003 xgifb_reg_set(XGIPART2,
1004 0x35,
1005 0xF1);
1006 xgifb_reg_set(XGIPART2,
1007 0x36,
1008 0xF7);
1009 xgifb_reg_set(XGIPART2,
1010 0x37,
1011 0x1F);
1012 xgifb_reg_set(XGIPART2,
1013 0x38,
1014 0x32);
1015 break;
1016 case 720:
1017 xgifb_reg_set(XGIPART2,
1018 0x35,
1019 0xF3);
1020 xgifb_reg_set(XGIPART2,
1021 0x36,
1022 0x00);
1023 xgifb_reg_set(XGIPART2,
1024 0x37,
1025 0x1D);
1026 xgifb_reg_set(XGIPART2,
1027 0x38,
1028 0x20);
1029 break;
1030 case 800:
1031 xgifb_reg_set(XGIPART2,
1032 0x35,
1033 0xFC);
1034 xgifb_reg_set(XGIPART2,
1035 0x36,
1036 0xFB);
1037 xgifb_reg_set(XGIPART2,
1038 0x37,
1039 0x14);
1040 xgifb_reg_set(XGIPART2,
1041 0x38,
1042 0x2A);
1043 break;
1044 }
1045 }
1046 }
1047
1048 if ((filter >= 0) && (filter <= 7)) {
1049 DPRINTK("FilterTable[%d]-%d: %02x %02x %02x %02x\n",
1050 filter_tb, filter,
1051 XGI_TV_filter[filter_tb].
1052 filter[filter][0],
1053 XGI_TV_filter[filter_tb].
1054 filter[filter][1],
1055 XGI_TV_filter[filter_tb].
1056 filter[filter][2],
1057 XGI_TV_filter[filter_tb].
1058 filter[filter][3]
1059 );
1060 xgifb_reg_set(
1061 XGIPART2,
1062 0x35,
1063 (XGI_TV_filter[filter_tb].
1064 filter[filter][0]));
1065 xgifb_reg_set(
1066 XGIPART2,
1067 0x36,
1068 (XGI_TV_filter[filter_tb].
1069 filter[filter][1]));
1070 xgifb_reg_set(
1071 XGIPART2,
1072 0x37,
1073 (XGI_TV_filter[filter_tb].
1074 filter[filter][2]));
1075 xgifb_reg_set(
1076 XGIPART2,
1077 0x38,
1078 (XGI_TV_filter[filter_tb].
1079 filter[filter][3]));
1080 }
1081 }
1082 }
1083 }
1084
XGIfb_do_set_var(struct fb_var_screeninfo * var,int isactive,struct fb_info * info)1085 static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
1086 struct fb_info *info)
1087 {
1088 struct xgifb_video_info *xgifb_info = info->par;
1089 struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info;
1090 unsigned int htotal = var->left_margin + var->xres + var->right_margin
1091 + var->hsync_len;
1092 unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
1093 + var->vsync_len;
1094 #if defined(__powerpc__)
1095 u8 sr_data, cr_data;
1096 #endif
1097 unsigned int drate = 0, hrate = 0;
1098 int found_mode = 0;
1099 int old_mode;
1100 /* unsigned char reg, reg1; */
1101
1102 DEBUGPRN("Inside do_set_var");
1103 /* printk(KERN_DEBUG "XGIfb:var->yres=%d, var->upper_margin=%d, var->lower_margin=%d, var->vsync_len=%d\n", var->yres, var->upper_margin, var->lower_margin, var->vsync_len); */
1104
1105 info->var.xres_virtual = var->xres_virtual;
1106 info->var.yres_virtual = var->yres_virtual;
1107 info->var.bits_per_pixel = var->bits_per_pixel;
1108
1109 if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED)
1110 vtotal <<= 1;
1111 else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
1112 vtotal <<= 2;
1113 else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1114 /* vtotal <<= 1; */
1115 /* var->yres <<= 1; */
1116 }
1117
1118 if (!htotal || !vtotal) {
1119 DPRINTK("XGIfb: Invalid 'var' information\n");
1120 return -EINVAL;
1121 } printk(KERN_DEBUG "XGIfb: var->pixclock=%d, htotal=%d, vtotal=%d\n",
1122 var->pixclock, htotal, vtotal);
1123
1124 if (var->pixclock && htotal && vtotal) {
1125 drate = 1000000000 / var->pixclock;
1126 hrate = (drate * 1000) / htotal;
1127 xgifb_info->refresh_rate = (unsigned int) (hrate * 2
1128 / vtotal);
1129 } else {
1130 xgifb_info->refresh_rate = 60;
1131 }
1132
1133 printk(KERN_DEBUG "XGIfb: Change mode to %dx%dx%d-%dHz\n",
1134 var->xres,
1135 var->yres,
1136 var->bits_per_pixel,
1137 xgifb_info->refresh_rate);
1138
1139 old_mode = xgifb_info->mode_idx;
1140 xgifb_info->mode_idx = 0;
1141
1142 while ((XGIbios_mode[xgifb_info->mode_idx].mode_no != 0) &&
1143 (XGIbios_mode[xgifb_info->mode_idx].xres <= var->xres)) {
1144 if ((XGIbios_mode[xgifb_info->mode_idx].xres == var->xres) &&
1145 (XGIbios_mode[xgifb_info->mode_idx].yres == var->yres) &&
1146 (XGIbios_mode[xgifb_info->mode_idx].bpp
1147 == var->bits_per_pixel)) {
1148 found_mode = 1;
1149 break;
1150 }
1151 xgifb_info->mode_idx++;
1152 }
1153
1154 if (found_mode)
1155 xgifb_info->mode_idx = XGIfb_validate_mode(xgifb_info,
1156 xgifb_info->mode_idx);
1157 else
1158 xgifb_info->mode_idx = -1;
1159
1160 if (xgifb_info->mode_idx < 0) {
1161 printk(KERN_ERR "XGIfb: Mode %dx%dx%d not supported\n",
1162 var->xres, var->yres, var->bits_per_pixel);
1163 xgifb_info->mode_idx = old_mode;
1164 return -EINVAL;
1165 }
1166
1167 if (XGIfb_search_refresh_rate(xgifb_info,
1168 xgifb_info->refresh_rate) == 0) {
1169 xgifb_info->rate_idx =
1170 XGIbios_mode[xgifb_info->mode_idx].rate_idx;
1171 xgifb_info->refresh_rate = 60;
1172 }
1173
1174 if (isactive) {
1175
1176 XGIfb_pre_setmode(xgifb_info);
1177 if (XGISetModeNew(xgifb_info, hw_info,
1178 XGIbios_mode[xgifb_info->mode_idx].mode_no)
1179 == 0) {
1180 printk(KERN_ERR "XGIfb: Setting mode[0x%x] failed\n",
1181 XGIbios_mode[xgifb_info->mode_idx].mode_no);
1182 return -EINVAL;
1183 }
1184 info->fix.line_length = ((info->var.xres_virtual
1185 * info->var.bits_per_pixel) >> 6);
1186
1187 xgifb_reg_set(XGISR, IND_XGI_PASSWORD, XGI_PASSWORD);
1188
1189 xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff));
1190 xgifb_reg_set(XGISR,
1191 0x0E,
1192 (info->fix.line_length & 0xff00) >> 8);
1193
1194 XGIfb_post_setmode(xgifb_info);
1195
1196 DPRINTK("XGIfb: Set new mode: %dx%dx%d-%d\n",
1197 XGIbios_mode[xgifb_info->mode_idx].xres,
1198 XGIbios_mode[xgifb_info->mode_idx].yres,
1199 XGIbios_mode[xgifb_info->mode_idx].bpp,
1200 xgifb_info->refresh_rate);
1201
1202 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
1203 xgifb_info->video_vwidth = info->var.xres_virtual;
1204 xgifb_info->video_width =
1205 XGIbios_mode[xgifb_info->mode_idx].xres;
1206 xgifb_info->video_vheight = info->var.yres_virtual;
1207 xgifb_info->video_height =
1208 XGIbios_mode[xgifb_info->mode_idx].yres;
1209 xgifb_info->org_x = xgifb_info->org_y = 0;
1210 xgifb_info->video_linelength = info->var.xres_virtual
1211 * (xgifb_info->video_bpp >> 3);
1212 switch (xgifb_info->video_bpp) {
1213 case 8:
1214 xgifb_info->DstColor = 0x0000;
1215 xgifb_info->XGI310_AccelDepth = 0x00000000;
1216 xgifb_info->video_cmap_len = 256;
1217 #if defined(__powerpc__)
1218 cr_data = xgifb_reg_get(XGICR, 0x4D);
1219 xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0));
1220 #endif
1221 break;
1222 case 16:
1223 xgifb_info->DstColor = 0x8000;
1224 xgifb_info->XGI310_AccelDepth = 0x00010000;
1225 #if defined(__powerpc__)
1226 cr_data = xgifb_reg_get(XGICR, 0x4D);
1227 xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B));
1228 #endif
1229 xgifb_info->video_cmap_len = 16;
1230 break;
1231 case 32:
1232 xgifb_info->DstColor = 0xC000;
1233 xgifb_info->XGI310_AccelDepth = 0x00020000;
1234 xgifb_info->video_cmap_len = 16;
1235 #if defined(__powerpc__)
1236 cr_data = xgifb_reg_get(XGICR, 0x4D);
1237 xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15));
1238 #endif
1239 break;
1240 default:
1241 xgifb_info->video_cmap_len = 16;
1242 printk(KERN_ERR "XGIfb: Unsupported depth %d",
1243 xgifb_info->video_bpp);
1244 break;
1245 }
1246 }
1247 XGIfb_bpp_to_var(xgifb_info, var); /*update ARGB info*/
1248 DEBUGPRN("End of do_set_var");
1249
1250 dumpVGAReg();
1251 return 0;
1252 }
1253
XGIfb_pan_var(struct fb_var_screeninfo * var,struct fb_info * info)1254 static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info)
1255 {
1256 struct xgifb_video_info *xgifb_info = info->par;
1257 unsigned int base;
1258
1259 /* printk("Inside pan_var"); */
1260
1261 base = var->yoffset * info->var.xres_virtual + var->xoffset;
1262
1263 /* calculate base bpp dep. */
1264 switch (info->var.bits_per_pixel) {
1265 case 16:
1266 base >>= 1;
1267 break;
1268 case 32:
1269 break;
1270 case 8:
1271 default:
1272 base >>= 2;
1273 break;
1274 }
1275
1276 xgifb_reg_set(XGISR, IND_XGI_PASSWORD, XGI_PASSWORD);
1277
1278 xgifb_reg_set(XGICR, 0x0D, base & 0xFF);
1279 xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF);
1280 xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF);
1281 xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03);
1282 xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04);
1283
1284 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1285 xgifb_reg_or(XGIPART1, IND_XGI_CRT2_WRITE_ENABLE_315, 0x01);
1286 xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF));
1287 xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF));
1288 xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF));
1289 xgifb_reg_and_or(XGIPART1,
1290 0x02,
1291 0x7F,
1292 ((base >> 24) & 0x01) << 7);
1293 }
1294 /* printk("End of pan_var"); */
1295 return 0;
1296 }
1297
XGIfb_open(struct fb_info * info,int user)1298 static int XGIfb_open(struct fb_info *info, int user)
1299 {
1300 return 0;
1301 }
1302
XGIfb_release(struct fb_info * info,int user)1303 static int XGIfb_release(struct fb_info *info, int user)
1304 {
1305 return 0;
1306 }
1307
XGIfb_get_cmap_len(const struct fb_var_screeninfo * var)1308 static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var)
1309 {
1310 int rc = 16;
1311
1312 switch (var->bits_per_pixel) {
1313 case 8:
1314 rc = 256;
1315 break;
1316 case 16:
1317 rc = 16;
1318 break;
1319 case 32:
1320 rc = 16;
1321 break;
1322 }
1323 return rc;
1324 }
1325
XGIfb_setcolreg(unsigned regno,unsigned red,unsigned green,unsigned blue,unsigned transp,struct fb_info * info)1326 static int XGIfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1327 unsigned blue, unsigned transp, struct fb_info *info)
1328 {
1329 struct xgifb_video_info *xgifb_info = info->par;
1330
1331 if (regno >= XGIfb_get_cmap_len(&info->var))
1332 return 1;
1333
1334 switch (info->var.bits_per_pixel) {
1335 case 8:
1336 outb(regno, XGIDACA);
1337 outb((red >> 10), XGIDACD);
1338 outb((green >> 10), XGIDACD);
1339 outb((blue >> 10), XGIDACD);
1340 if (xgifb_info->display2 != XGIFB_DISP_NONE) {
1341 outb(regno, XGIDAC2A);
1342 outb((red >> 8), XGIDAC2D);
1343 outb((green >> 8), XGIDAC2D);
1344 outb((blue >> 8), XGIDAC2D);
1345 }
1346 break;
1347 case 16:
1348 ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800))
1349 | ((green & 0xfc00) >> 5) | ((blue & 0xf800)
1350 >> 11);
1351 break;
1352 case 32:
1353 red >>= 8;
1354 green >>= 8;
1355 blue >>= 8;
1356 ((u32 *) (info->pseudo_palette))[regno] = (red << 16) | (green
1357 << 8) | (blue);
1358 break;
1359 }
1360 return 0;
1361 }
1362
1363 /* ----------- FBDev related routines for all series ---------- */
1364
XGIfb_get_fix(struct fb_fix_screeninfo * fix,int con,struct fb_info * info)1365 static int XGIfb_get_fix(struct fb_fix_screeninfo *fix, int con,
1366 struct fb_info *info)
1367 {
1368 struct xgifb_video_info *xgifb_info = info->par;
1369
1370 DEBUGPRN("inside get_fix");
1371 memset(fix, 0, sizeof(struct fb_fix_screeninfo));
1372
1373 fix->smem_start = xgifb_info->video_base;
1374
1375 fix->smem_len = xgifb_info->video_size;
1376
1377 fix->type = FB_TYPE_PACKED_PIXELS;
1378 fix->type_aux = 0;
1379 if (xgifb_info->video_bpp == 8)
1380 fix->visual = FB_VISUAL_PSEUDOCOLOR;
1381 else
1382 fix->visual = FB_VISUAL_DIRECTCOLOR;
1383 fix->xpanstep = 0;
1384 if (XGIfb_ypan)
1385 fix->ypanstep = 1;
1386 fix->ywrapstep = 0;
1387 fix->line_length = xgifb_info->video_linelength;
1388 fix->mmio_start = xgifb_info->mmio_base;
1389 fix->mmio_len = xgifb_info->mmio_size;
1390 fix->accel = FB_ACCEL_XGI_XABRE;
1391
1392 DEBUGPRN("end of get_fix");
1393 return 0;
1394 }
1395
XGIfb_set_par(struct fb_info * info)1396 static int XGIfb_set_par(struct fb_info *info)
1397 {
1398 int err;
1399
1400 /* printk("XGIfb: inside set_par\n"); */
1401 err = XGIfb_do_set_var(&info->var, 1, info);
1402 if (err)
1403 return err;
1404 XGIfb_get_fix(&info->fix, -1, info);
1405 /* printk("XGIfb: end of set_par\n"); */
1406 return 0;
1407 }
1408
XGIfb_check_var(struct fb_var_screeninfo * var,struct fb_info * info)1409 static int XGIfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1410 {
1411 struct xgifb_video_info *xgifb_info = info->par;
1412 unsigned int htotal = var->left_margin + var->xres + var->right_margin
1413 + var->hsync_len;
1414 unsigned int vtotal = 0;
1415 unsigned int drate = 0, hrate = 0;
1416 int found_mode = 0;
1417 int refresh_rate, search_idx;
1418
1419 DEBUGPRN("Inside check_var");
1420
1421 if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_NONINTERLACED) {
1422 vtotal = var->upper_margin + var->yres + var->lower_margin
1423 + var->vsync_len;
1424 vtotal <<= 1;
1425 } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
1426 vtotal = var->upper_margin + var->yres + var->lower_margin
1427 + var->vsync_len;
1428 vtotal <<= 2;
1429 } else if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
1430 vtotal = var->upper_margin + (var->yres / 2)
1431 + var->lower_margin + var->vsync_len;
1432 } else
1433 vtotal = var->upper_margin + var->yres + var->lower_margin
1434 + var->vsync_len;
1435
1436 if (!(htotal) || !(vtotal))
1437 XGIFAIL("XGIfb: no valid timing data");
1438
1439 if (var->pixclock && htotal && vtotal) {
1440 drate = 1000000000 / var->pixclock;
1441 hrate = (drate * 1000) / htotal;
1442 xgifb_info->refresh_rate =
1443 (unsigned int) (hrate * 2 / vtotal);
1444 printk(KERN_DEBUG
1445 "%s: pixclock = %d ,htotal=%d, vtotal=%d\n"
1446 "%s: drate=%d, hrate=%d, refresh_rate=%d\n",
1447 __func__, var->pixclock, htotal, vtotal,
1448 __func__, drate, hrate, xgifb_info->refresh_rate);
1449 } else {
1450 xgifb_info->refresh_rate = 60;
1451 }
1452
1453 /*
1454 if ((var->pixclock) && (htotal)) {
1455 drate = 1E12 / var->pixclock;
1456 hrate = drate / htotal;
1457 refresh_rate = (unsigned int) (hrate / vtotal * 2 + 0.5);
1458 } else {
1459 refresh_rate = 60;
1460 }
1461 */
1462 /* TW: Calculation wrong for 1024x600 - force it to 60Hz */
1463 if ((var->xres == 1024) && (var->yres == 600))
1464 refresh_rate = 60;
1465
1466 search_idx = 0;
1467 while ((XGIbios_mode[search_idx].mode_no != 0) &&
1468 (XGIbios_mode[search_idx].xres <= var->xres)) {
1469 if ((XGIbios_mode[search_idx].xres == var->xres) &&
1470 (XGIbios_mode[search_idx].yres == var->yres) &&
1471 (XGIbios_mode[search_idx].bpp == var->bits_per_pixel)) {
1472 if (XGIfb_validate_mode(xgifb_info, search_idx) > 0) {
1473 found_mode = 1;
1474 break;
1475 }
1476 }
1477 search_idx++;
1478 }
1479
1480 if (!found_mode) {
1481
1482 printk(KERN_ERR "XGIfb: %dx%dx%d is no valid mode\n",
1483 var->xres, var->yres, var->bits_per_pixel);
1484 search_idx = 0;
1485 while (XGIbios_mode[search_idx].mode_no != 0) {
1486 if ((var->xres <= XGIbios_mode[search_idx].xres) &&
1487 (var->yres <= XGIbios_mode[search_idx].yres) &&
1488 (var->bits_per_pixel ==
1489 XGIbios_mode[search_idx].bpp)) {
1490 if (XGIfb_validate_mode(xgifb_info,
1491 search_idx) > 0) {
1492 found_mode = 1;
1493 break;
1494 }
1495 }
1496 search_idx++;
1497 }
1498 if (found_mode) {
1499 var->xres = XGIbios_mode[search_idx].xres;
1500 var->yres = XGIbios_mode[search_idx].yres;
1501 printk(KERN_DEBUG "XGIfb: Adapted to mode %dx%dx%d\n",
1502 var->xres, var->yres, var->bits_per_pixel);
1503
1504 } else {
1505 printk(KERN_ERR "XGIfb: Failed to find similar mode to %dx%dx%d\n",
1506 var->xres, var->yres, var->bits_per_pixel);
1507 return -EINVAL;
1508 }
1509 }
1510
1511 /* TW: TODO: Check the refresh rate */
1512
1513 /* Adapt RGB settings */
1514 XGIfb_bpp_to_var(xgifb_info, var);
1515
1516 /* Sanity check for offsets */
1517 if (var->xoffset < 0)
1518 var->xoffset = 0;
1519 if (var->yoffset < 0)
1520 var->yoffset = 0;
1521
1522 if (!XGIfb_ypan) {
1523 if (var->xres != var->xres_virtual)
1524 var->xres_virtual = var->xres;
1525 if (var->yres != var->yres_virtual)
1526 var->yres_virtual = var->yres;
1527 } /* else { */
1528 /* TW: Now patch yres_virtual if we use panning */
1529 /* May I do this? */
1530 /* var->yres_virtual = xgifb_info->heapstart /
1531 (var->xres * (var->bits_per_pixel >> 3)); */
1532 /* if (var->yres_virtual <= var->yres) { */
1533 /* TW: Paranoia check */
1534 /* var->yres_virtual = var->yres; */
1535 /* } */
1536 /* } */
1537
1538 /* Truncate offsets to maximum if too high */
1539 if (var->xoffset > var->xres_virtual - var->xres)
1540 var->xoffset = var->xres_virtual - var->xres - 1;
1541
1542 if (var->yoffset > var->yres_virtual - var->yres)
1543 var->yoffset = var->yres_virtual - var->yres - 1;
1544
1545 /* Set everything else to 0 */
1546 var->red.msb_right =
1547 var->green.msb_right =
1548 var->blue.msb_right =
1549 var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1550
1551 DEBUGPRN("end of check_var");
1552 return 0;
1553 }
1554
XGIfb_pan_display(struct fb_var_screeninfo * var,struct fb_info * info)1555 static int XGIfb_pan_display(struct fb_var_screeninfo *var,
1556 struct fb_info *info)
1557 {
1558 int err;
1559
1560 /* printk("\nInside pan_display:\n"); */
1561
1562 if (var->xoffset > (info->var.xres_virtual - info->var.xres))
1563 return -EINVAL;
1564 if (var->yoffset > (info->var.yres_virtual - info->var.yres))
1565 return -EINVAL;
1566
1567 if (var->vmode & FB_VMODE_YWRAP) {
1568 if (var->yoffset < 0 || var->yoffset >= info->var.yres_virtual
1569 || var->xoffset)
1570 return -EINVAL;
1571 } else {
1572 if (var->xoffset + info->var.xres > info->var.xres_virtual
1573 || var->yoffset + info->var.yres
1574 > info->var.yres_virtual)
1575 return -EINVAL;
1576 }
1577 err = XGIfb_pan_var(var, info);
1578 if (err < 0)
1579 return err;
1580
1581 info->var.xoffset = var->xoffset;
1582 info->var.yoffset = var->yoffset;
1583 if (var->vmode & FB_VMODE_YWRAP)
1584 info->var.vmode |= FB_VMODE_YWRAP;
1585 else
1586 info->var.vmode &= ~FB_VMODE_YWRAP;
1587
1588 /* printk("End of pan_display\n"); */
1589 return 0;
1590 }
1591
XGIfb_blank(int blank,struct fb_info * info)1592 static int XGIfb_blank(int blank, struct fb_info *info)
1593 {
1594 struct xgifb_video_info *xgifb_info = info->par;
1595 u8 reg;
1596
1597 reg = xgifb_reg_get(XGICR, 0x17);
1598
1599 if (blank > 0)
1600 reg &= 0x7f;
1601 else
1602 reg |= 0x80;
1603
1604 xgifb_reg_set(XGICR, 0x17, reg);
1605 xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */
1606 xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */
1607 return 0;
1608 }
1609
1610 static struct fb_ops XGIfb_ops = {
1611 .owner = THIS_MODULE,
1612 .fb_open = XGIfb_open,
1613 .fb_release = XGIfb_release,
1614 .fb_check_var = XGIfb_check_var,
1615 .fb_set_par = XGIfb_set_par,
1616 .fb_setcolreg = XGIfb_setcolreg,
1617 .fb_pan_display = XGIfb_pan_display,
1618 .fb_blank = XGIfb_blank,
1619 .fb_fillrect = cfb_fillrect,
1620 .fb_copyarea = cfb_copyarea,
1621 .fb_imageblit = cfb_imageblit,
1622 /* .fb_mmap = XGIfb_mmap, */
1623 };
1624
1625 /* ---------------- Chip generation dependent routines ---------------- */
1626
1627 /* for XGI 315/550/650/740/330 */
1628
XGIfb_get_dram_size(struct xgifb_video_info * xgifb_info)1629 static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info)
1630 {
1631
1632 u8 ChannelNum, tmp;
1633 u8 reg = 0;
1634
1635 /* xorg driver sets 32MB * 1 channel */
1636 if (xgifb_info->chip == XG27)
1637 xgifb_reg_set(XGISR, IND_XGI_DRAM_SIZE, 0x51);
1638
1639 reg = xgifb_reg_get(XGISR, IND_XGI_DRAM_SIZE);
1640 switch ((reg & XGI_DRAM_SIZE_MASK) >> 4) {
1641 case XGI_DRAM_SIZE_1MB:
1642 xgifb_info->video_size = 0x100000;
1643 break;
1644 case XGI_DRAM_SIZE_2MB:
1645 xgifb_info->video_size = 0x200000;
1646 break;
1647 case XGI_DRAM_SIZE_4MB:
1648 xgifb_info->video_size = 0x400000;
1649 break;
1650 case XGI_DRAM_SIZE_8MB:
1651 xgifb_info->video_size = 0x800000;
1652 break;
1653 case XGI_DRAM_SIZE_16MB:
1654 xgifb_info->video_size = 0x1000000;
1655 break;
1656 case XGI_DRAM_SIZE_32MB:
1657 xgifb_info->video_size = 0x2000000;
1658 break;
1659 case XGI_DRAM_SIZE_64MB:
1660 xgifb_info->video_size = 0x4000000;
1661 break;
1662 case XGI_DRAM_SIZE_128MB:
1663 xgifb_info->video_size = 0x8000000;
1664 break;
1665 case XGI_DRAM_SIZE_256MB:
1666 xgifb_info->video_size = 0x10000000;
1667 break;
1668 default:
1669 return -1;
1670 }
1671
1672 tmp = (reg & 0x0c) >> 2;
1673 switch (xgifb_info->chip) {
1674 case XG20:
1675 case XG21:
1676 case XG27:
1677 ChannelNum = 1;
1678 break;
1679
1680 case XG42:
1681 if (reg & 0x04)
1682 ChannelNum = 2;
1683 else
1684 ChannelNum = 1;
1685 break;
1686
1687 case XG45:
1688 if (tmp == 1)
1689 ChannelNum = 2;
1690 else if (tmp == 2)
1691 ChannelNum = 3;
1692 else if (tmp == 3)
1693 ChannelNum = 4;
1694 else
1695 ChannelNum = 1;
1696 break;
1697
1698 case XG40:
1699 default:
1700 if (tmp == 2)
1701 ChannelNum = 2;
1702 else if (tmp == 3)
1703 ChannelNum = 3;
1704 else
1705 ChannelNum = 1;
1706 break;
1707 }
1708
1709 xgifb_info->video_size = xgifb_info->video_size * ChannelNum;
1710 /* PLiad fixed for benchmarking and fb set */
1711 /* xgifb_info->video_size = 0x200000; */ /* 1024x768x16 */
1712 /* xgifb_info->video_size = 0x1000000; */ /* benchmark */
1713
1714 printk("XGIfb: SR14=%x DramSzie %x ChannelNum %x\n",
1715 reg,
1716 xgifb_info->video_size, ChannelNum);
1717 return 0;
1718
1719 }
1720
XGIfb_detect_VB(struct xgifb_video_info * xgifb_info)1721 static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
1722 {
1723 u8 cr32, temp = 0;
1724
1725 xgifb_info->TV_plug = xgifb_info->TV_type = 0;
1726
1727 switch (xgifb_info->hasVB) {
1728 case HASVB_LVDS_CHRONTEL:
1729 case HASVB_CHRONTEL:
1730 break;
1731 case HASVB_301:
1732 case HASVB_302:
1733 /* XGI_Sense30x(); */ /* Yi-Lin TV Sense? */
1734 break;
1735 }
1736
1737 cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32);
1738
1739 if ((cr32 & XGI_CRT1) && !XGIfb_crt1off)
1740 XGIfb_crt1off = 0;
1741 else {
1742 if (cr32 & 0x5F)
1743 XGIfb_crt1off = 1;
1744 else
1745 XGIfb_crt1off = 0;
1746 }
1747
1748 if (!xgifb_info->display2_force) {
1749 if (cr32 & XGI_VB_TV)
1750 xgifb_info->display2 = XGIFB_DISP_TV;
1751 else if (cr32 & XGI_VB_LCD)
1752 xgifb_info->display2 = XGIFB_DISP_LCD;
1753 else if (cr32 & XGI_VB_CRT2)
1754 xgifb_info->display2 = XGIFB_DISP_CRT;
1755 else
1756 xgifb_info->display2 = XGIFB_DISP_NONE;
1757 }
1758
1759 if (XGIfb_tvplug != -1)
1760 /* PR/TW: Override with option */
1761 xgifb_info->TV_plug = XGIfb_tvplug;
1762 else if (cr32 & XGI_VB_HIVISION) {
1763 xgifb_info->TV_type = TVMODE_HIVISION;
1764 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1765 } else if (cr32 & XGI_VB_SVIDEO)
1766 xgifb_info->TV_plug = TVPLUG_SVIDEO;
1767 else if (cr32 & XGI_VB_COMPOSITE)
1768 xgifb_info->TV_plug = TVPLUG_COMPOSITE;
1769 else if (cr32 & XGI_VB_SCART)
1770 xgifb_info->TV_plug = TVPLUG_SCART;
1771
1772 if (xgifb_info->TV_type == 0) {
1773 temp = xgifb_reg_get(XGICR, 0x38);
1774 if (temp & 0x10)
1775 xgifb_info->TV_type = TVMODE_PAL;
1776 else
1777 xgifb_info->TV_type = TVMODE_NTSC;
1778 }
1779
1780 /* TW: Copy forceCRT1 option to CRT1off if option is given */
1781 if (XGIfb_forcecrt1 != -1) {
1782 if (XGIfb_forcecrt1)
1783 XGIfb_crt1off = 0;
1784 else
1785 XGIfb_crt1off = 1;
1786 }
1787 }
1788
XGIfb_has_VB(struct xgifb_video_info * xgifb_info)1789 static int XGIfb_has_VB(struct xgifb_video_info *xgifb_info)
1790 {
1791 u8 vb_chipid;
1792
1793 vb_chipid = xgifb_reg_get(XGIPART4, 0x00);
1794 switch (vb_chipid) {
1795 case 0x01:
1796 xgifb_info->hasVB = HASVB_301;
1797 break;
1798 case 0x02:
1799 xgifb_info->hasVB = HASVB_302;
1800 break;
1801 default:
1802 xgifb_info->hasVB = HASVB_NONE;
1803 return 0;
1804 }
1805 return 1;
1806 }
1807
XGIfb_get_VB_type(struct xgifb_video_info * xgifb_info)1808 static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info)
1809 {
1810 u8 reg;
1811
1812 if (!XGIfb_has_VB(xgifb_info)) {
1813 reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37);
1814 switch ((reg & XGI_EXTERNAL_CHIP_MASK) >> 1) {
1815 case XGI310_EXTERNAL_CHIP_LVDS:
1816 xgifb_info->hasVB = HASVB_LVDS;
1817 break;
1818 case XGI310_EXTERNAL_CHIP_LVDS_CHRONTEL:
1819 xgifb_info->hasVB = HASVB_LVDS_CHRONTEL;
1820 break;
1821 default:
1822 break;
1823 }
1824 }
1825 }
1826
xgifb_optval(char * fullopt,int validx)1827 static int __init xgifb_optval(char *fullopt, int validx)
1828 {
1829 unsigned long lres;
1830
1831 if (kstrtoul(fullopt + validx, 0, &lres) < 0 || lres > INT_MAX) {
1832 pr_err("xgifb: invalid value for option: %s\n", fullopt);
1833 return 0;
1834 }
1835 return lres;
1836 }
1837
XGIfb_setup(char * options)1838 static int __init XGIfb_setup(char *options)
1839 {
1840 char *this_opt;
1841
1842 if (!options || !*options)
1843 return 0;
1844
1845 pr_info("xgifb: options: %s\n", options);
1846
1847 while ((this_opt = strsep(&options, ",")) != NULL) {
1848
1849 if (!*this_opt)
1850 continue;
1851
1852 if (!strncmp(this_opt, "mode:", 5)) {
1853 mode = this_opt + 5;
1854 } else if (!strncmp(this_opt, "vesa:", 5)) {
1855 vesa = xgifb_optval(this_opt, 5);
1856 } else if (!strncmp(this_opt, "vrate:", 6)) {
1857 refresh_rate = xgifb_optval(this_opt, 6);
1858 } else if (!strncmp(this_opt, "rate:", 5)) {
1859 refresh_rate = xgifb_optval(this_opt, 5);
1860 } else if (!strncmp(this_opt, "crt1off", 7)) {
1861 XGIfb_crt1off = 1;
1862 } else if (!strncmp(this_opt, "filter:", 7)) {
1863 filter = xgifb_optval(this_opt, 7);
1864 } else if (!strncmp(this_opt, "forcecrt2type:", 14)) {
1865 XGIfb_search_crt2type(this_opt + 14);
1866 } else if (!strncmp(this_opt, "forcecrt1:", 10)) {
1867 XGIfb_forcecrt1 = xgifb_optval(this_opt, 10);
1868 } else if (!strncmp(this_opt, "tvmode:", 7)) {
1869 XGIfb_search_tvstd(this_opt + 7);
1870 } else if (!strncmp(this_opt, "tvstandard:", 11)) {
1871 XGIfb_search_tvstd(this_opt + 7);
1872 } else if (!strncmp(this_opt, "dstn", 4)) {
1873 enable_dstn = 1;
1874 /* TW: DSTN overrules forcecrt2type */
1875 XGIfb_crt2type = XGIFB_DISP_LCD;
1876 } else if (!strncmp(this_opt, "noypan", 6)) {
1877 XGIfb_ypan = 0;
1878 } else {
1879 mode = this_opt;
1880 }
1881 }
1882 return 0;
1883 }
1884
xgifb_probe(struct pci_dev * pdev,const struct pci_device_id * ent)1885 static int __devinit xgifb_probe(struct pci_dev *pdev,
1886 const struct pci_device_id *ent)
1887 {
1888 u8 reg, reg1;
1889 u8 CR48, CR38;
1890 int ret;
1891 struct fb_info *fb_info;
1892 struct xgifb_video_info *xgifb_info;
1893 struct xgi_hw_device_info *hw_info;
1894
1895 fb_info = framebuffer_alloc(sizeof(*xgifb_info), &pdev->dev);
1896 if (!fb_info)
1897 return -ENOMEM;
1898
1899 xgifb_info = fb_info->par;
1900 hw_info = &xgifb_info->hw_info;
1901 xgifb_info->fb_info = fb_info;
1902 xgifb_info->chip_id = pdev->device;
1903 pci_read_config_byte(pdev,
1904 PCI_REVISION_ID,
1905 &xgifb_info->revision_id);
1906 hw_info->jChipRevision = xgifb_info->revision_id;
1907
1908 xgifb_info->pcibus = pdev->bus->number;
1909 xgifb_info->pcislot = PCI_SLOT(pdev->devfn);
1910 xgifb_info->pcifunc = PCI_FUNC(pdev->devfn);
1911 xgifb_info->subsysvendor = pdev->subsystem_vendor;
1912 xgifb_info->subsysdevice = pdev->subsystem_device;
1913
1914 xgifb_info->video_base = pci_resource_start(pdev, 0);
1915 xgifb_info->mmio_base = pci_resource_start(pdev, 1);
1916 xgifb_info->mmio_size = pci_resource_len(pdev, 1);
1917 xgifb_info->vga_base = pci_resource_start(pdev, 2) + 0x30;
1918 hw_info->pjIOAddress = (unsigned char *)xgifb_info->vga_base;
1919 /* XGI_Pr.RelIO = ioremap(pci_resource_start(pdev, 2), 128) + 0x30; */
1920 printk("XGIfb: Relocate IO address: %lx [%08lx]\n",
1921 (unsigned long)pci_resource_start(pdev, 2),
1922 xgifb_info->dev_info.RelIO);
1923
1924 if (pci_enable_device(pdev)) {
1925 ret = -EIO;
1926 goto error;
1927 }
1928
1929 if (XGIfb_crt2type != -1) {
1930 xgifb_info->display2 = XGIfb_crt2type;
1931 xgifb_info->display2_force = true;
1932 }
1933
1934 XGIRegInit(&xgifb_info->dev_info, (unsigned long)hw_info->pjIOAddress);
1935
1936 xgifb_reg_set(XGISR, IND_XGI_PASSWORD, XGI_PASSWORD);
1937 reg1 = xgifb_reg_get(XGISR, IND_XGI_PASSWORD);
1938
1939 if (reg1 != 0xa1) { /*I/O error */
1940 printk("\nXGIfb: I/O error!!!");
1941 ret = -EIO;
1942 goto error;
1943 }
1944
1945 switch (xgifb_info->chip_id) {
1946 case PCI_DEVICE_ID_XG_20:
1947 xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN);
1948 CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1);
1949 if (CR48&GPIOG_READ)
1950 xgifb_info->chip = XG21;
1951 else
1952 xgifb_info->chip = XG20;
1953 break;
1954 case PCI_DEVICE_ID_XG_40:
1955 xgifb_info->chip = XG40;
1956 break;
1957 case PCI_DEVICE_ID_XG_41:
1958 xgifb_info->chip = XG41;
1959 break;
1960 case PCI_DEVICE_ID_XG_42:
1961 xgifb_info->chip = XG42;
1962 break;
1963 case PCI_DEVICE_ID_XG_27:
1964 xgifb_info->chip = XG27;
1965 break;
1966 default:
1967 ret = -ENODEV;
1968 goto error;
1969 }
1970
1971 printk("XGIfb:chipid = %x\n", xgifb_info->chip);
1972 hw_info->jChipType = xgifb_info->chip;
1973
1974 if (XGIfb_get_dram_size(xgifb_info)) {
1975 printk(KERN_INFO "XGIfb: Fatal error: Unable to determine RAM size.\n");
1976 ret = -ENODEV;
1977 goto error;
1978 }
1979
1980 /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE */
1981 xgifb_reg_or(XGISR,
1982 IND_XGI_PCI_ADDRESS_SET,
1983 (XGI_PCI_ADDR_ENABLE | XGI_MEM_MAP_IO_ENABLE));
1984 /* Enable 2D accelerator engine */
1985 xgifb_reg_or(XGISR, IND_XGI_MODULE_ENABLE, XGI_ENABLE_2D);
1986
1987 hw_info->ulVideoMemorySize = xgifb_info->video_size;
1988
1989 if (!request_mem_region(xgifb_info->video_base,
1990 xgifb_info->video_size,
1991 "XGIfb FB")) {
1992 printk("unable request memory size %x",
1993 xgifb_info->video_size);
1994 printk(KERN_ERR "XGIfb: Fatal error: Unable to reserve frame buffer memory\n");
1995 printk(KERN_ERR "XGIfb: Is there another framebuffer driver active?\n");
1996 ret = -ENODEV;
1997 goto error;
1998 }
1999
2000 if (!request_mem_region(xgifb_info->mmio_base,
2001 xgifb_info->mmio_size,
2002 "XGIfb MMIO")) {
2003 printk(KERN_ERR "XGIfb: Fatal error: Unable to reserve MMIO region\n");
2004 ret = -ENODEV;
2005 goto error_0;
2006 }
2007
2008 xgifb_info->video_vbase = hw_info->pjVideoMemoryAddress =
2009 ioremap(xgifb_info->video_base, xgifb_info->video_size);
2010 xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
2011 xgifb_info->mmio_size);
2012
2013 printk(KERN_INFO "XGIfb: Framebuffer at 0x%lx, mapped to 0x%p, size %dk\n",
2014 xgifb_info->video_base,
2015 xgifb_info->video_vbase,
2016 xgifb_info->video_size / 1024);
2017
2018 printk(KERN_INFO "XGIfb: MMIO at 0x%lx, mapped to 0x%p, size %ldk\n",
2019 xgifb_info->mmio_base, xgifb_info->mmio_vbase,
2020 xgifb_info->mmio_size / 1024);
2021 printk("XGIfb: XGIInitNew() ...");
2022 pci_set_drvdata(pdev, xgifb_info);
2023 if (XGIInitNew(pdev))
2024 printk("OK\n");
2025 else
2026 printk("Fail\n");
2027
2028 xgifb_info->mtrr = (unsigned int) 0;
2029
2030 xgifb_info->hasVB = HASVB_NONE;
2031 if ((xgifb_info->chip == XG20) ||
2032 (xgifb_info->chip == XG27)) {
2033 xgifb_info->hasVB = HASVB_NONE;
2034 } else if (xgifb_info->chip == XG21) {
2035 CR38 = xgifb_reg_get(XGICR, 0x38);
2036 if ((CR38&0xE0) == 0xC0) {
2037 xgifb_info->display2 = XGIFB_DISP_LCD;
2038 } else if ((CR38&0xE0) == 0x60) {
2039 xgifb_info->hasVB = HASVB_CHRONTEL;
2040 } else {
2041 xgifb_info->hasVB = HASVB_NONE;
2042 }
2043 } else {
2044 XGIfb_get_VB_type(xgifb_info);
2045 }
2046
2047 hw_info->ujVBChipID = VB_CHIP_UNKNOWN;
2048
2049 hw_info->ulExternalChip = 0;
2050
2051 switch (xgifb_info->hasVB) {
2052 case HASVB_301:
2053 reg = xgifb_reg_get(XGIPART4, 0x01);
2054 if (reg >= 0xE0) {
2055 hw_info->ujVBChipID = VB_CHIP_302LV;
2056 printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
2057 } else if (reg >= 0xD0) {
2058 hw_info->ujVBChipID = VB_CHIP_301LV;
2059 printk(KERN_INFO "XGIfb: XGI301LV bridge detected (revision 0x%02x)\n", reg);
2060 }
2061 /* else if (reg >= 0xB0) {
2062 hw_info->ujVBChipID = VB_CHIP_301B;
2063 reg1 = xgifb_reg_get(XGIPART4, 0x23);
2064 printk("XGIfb: XGI301B bridge detected\n");
2065 } */
2066 else {
2067 hw_info->ujVBChipID = VB_CHIP_301;
2068 printk("XGIfb: XGI301 bridge detected\n");
2069 }
2070 break;
2071 case HASVB_302:
2072 reg = xgifb_reg_get(XGIPART4, 0x01);
2073 if (reg >= 0xE0) {
2074 hw_info->ujVBChipID = VB_CHIP_302LV;
2075 printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
2076 } else if (reg >= 0xD0) {
2077 hw_info->ujVBChipID = VB_CHIP_301LV;
2078 printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
2079 } else if (reg >= 0xB0) {
2080 reg1 = xgifb_reg_get(XGIPART4, 0x23);
2081
2082 hw_info->ujVBChipID = VB_CHIP_302B;
2083
2084 } else {
2085 hw_info->ujVBChipID = VB_CHIP_302;
2086 printk(KERN_INFO "XGIfb: XGI302 bridge detected\n");
2087 }
2088 break;
2089 case HASVB_LVDS:
2090 hw_info->ulExternalChip = 0x1;
2091 printk(KERN_INFO "XGIfb: LVDS transmitter detected\n");
2092 break;
2093 case HASVB_TRUMPION:
2094 hw_info->ulExternalChip = 0x2;
2095 printk(KERN_INFO "XGIfb: Trumpion Zurac LVDS scaler detected\n");
2096 break;
2097 case HASVB_CHRONTEL:
2098 hw_info->ulExternalChip = 0x4;
2099 printk(KERN_INFO "XGIfb: Chrontel TV encoder detected\n");
2100 break;
2101 case HASVB_LVDS_CHRONTEL:
2102 hw_info->ulExternalChip = 0x5;
2103 printk(KERN_INFO "XGIfb: LVDS transmitter and Chrontel TV encoder detected\n");
2104 break;
2105 default:
2106 printk(KERN_INFO "XGIfb: No or unknown bridge type detected\n");
2107 break;
2108 }
2109
2110 if (xgifb_info->hasVB != HASVB_NONE)
2111 XGIfb_detect_VB(xgifb_info);
2112 else if (xgifb_info->chip != XG21)
2113 xgifb_info->display2 = XGIFB_DISP_NONE;
2114
2115 if (xgifb_info->display2 == XGIFB_DISP_LCD) {
2116 if (!enable_dstn) {
2117 reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
2118 reg &= 0x0f;
2119 hw_info->ulCRT2LCDType = XGI310paneltype[reg];
2120
2121 } else {
2122 /* TW: FSTN/DSTN */
2123 hw_info->ulCRT2LCDType = LCD_320x480;
2124 }
2125 }
2126
2127 if ((hw_info->ujVBChipID == VB_CHIP_302B) ||
2128 (hw_info->ujVBChipID == VB_CHIP_301LV) ||
2129 (hw_info->ujVBChipID == VB_CHIP_302LV)) {
2130 int tmp;
2131 tmp = xgifb_reg_get(XGICR, 0x34);
2132 if (tmp <= 0x13) {
2133 /* Currently on LCDA?
2134 *(Some BIOSes leave CR38) */
2135 tmp = xgifb_reg_get(XGICR, 0x38);
2136 if ((tmp & 0x03) == 0x03) {
2137 /* XGI_Pr.XGI_UseLCDA = 1; */
2138 } else {
2139 /* Currently on LCDA?
2140 *(Some newer BIOSes set D0 in CR35) */
2141 tmp = xgifb_reg_get(XGICR, 0x35);
2142 if (tmp & 0x01) {
2143 /* XGI_Pr.XGI_UseLCDA = 1; */
2144 } else {
2145 tmp = xgifb_reg_get(XGICR,
2146 0x30);
2147 if (tmp & 0x20) {
2148 tmp = xgifb_reg_get(
2149 XGIPART1, 0x13);
2150 if (tmp & 0x04) {
2151 /* XGI_Pr.XGI_UseLCDA = 1; */
2152 }
2153 }
2154 }
2155 }
2156 }
2157
2158 }
2159
2160 xgifb_info->mode_idx = -1;
2161
2162 if (mode)
2163 XGIfb_search_mode(xgifb_info, mode);
2164 else if (vesa != -1)
2165 XGIfb_search_vesamode(xgifb_info, vesa);
2166
2167 if (xgifb_info->mode_idx >= 0)
2168 xgifb_info->mode_idx =
2169 XGIfb_validate_mode(xgifb_info, xgifb_info->mode_idx);
2170
2171 if (xgifb_info->mode_idx < 0) {
2172 if (xgifb_info->display2 == XGIFB_DISP_LCD &&
2173 xgifb_info->chip == XG21)
2174 xgifb_info->mode_idx =
2175 XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
2176 else
2177 xgifb_info->mode_idx = DEFAULT_MODE;
2178 }
2179
2180 if (xgifb_info->mode_idx < 0) {
2181 dev_err(&pdev->dev, "no supported video mode found\n");
2182 goto error_1;
2183 }
2184
2185 /* yilin set default refresh rate */
2186 xgifb_info->refresh_rate = refresh_rate;
2187 if (xgifb_info->refresh_rate == 0)
2188 xgifb_info->refresh_rate = 60;
2189 if (XGIfb_search_refresh_rate(xgifb_info,
2190 xgifb_info->refresh_rate) == 0) {
2191 xgifb_info->rate_idx =
2192 XGIbios_mode[xgifb_info->mode_idx].rate_idx;
2193 xgifb_info->refresh_rate = 60;
2194 }
2195
2196 xgifb_info->video_bpp = XGIbios_mode[xgifb_info->mode_idx].bpp;
2197 xgifb_info->video_vwidth =
2198 xgifb_info->video_width =
2199 XGIbios_mode[xgifb_info->mode_idx].xres;
2200 xgifb_info->video_vheight =
2201 xgifb_info->video_height =
2202 XGIbios_mode[xgifb_info->mode_idx].yres;
2203 xgifb_info->org_x = xgifb_info->org_y = 0;
2204 xgifb_info->video_linelength =
2205 xgifb_info->video_width *
2206 (xgifb_info->video_bpp >> 3);
2207 switch (xgifb_info->video_bpp) {
2208 case 8:
2209 xgifb_info->DstColor = 0x0000;
2210 xgifb_info->XGI310_AccelDepth = 0x00000000;
2211 xgifb_info->video_cmap_len = 256;
2212 break;
2213 case 16:
2214 xgifb_info->DstColor = 0x8000;
2215 xgifb_info->XGI310_AccelDepth = 0x00010000;
2216 xgifb_info->video_cmap_len = 16;
2217 break;
2218 case 32:
2219 xgifb_info->DstColor = 0xC000;
2220 xgifb_info->XGI310_AccelDepth = 0x00020000;
2221 xgifb_info->video_cmap_len = 16;
2222 break;
2223 default:
2224 xgifb_info->video_cmap_len = 16;
2225 printk(KERN_INFO "XGIfb: Unsupported depth %d",
2226 xgifb_info->video_bpp);
2227 break;
2228 }
2229
2230 printk(KERN_INFO "XGIfb: Default mode is %dx%dx%d (%dHz)\n",
2231 xgifb_info->video_width,
2232 xgifb_info->video_height,
2233 xgifb_info->video_bpp,
2234 xgifb_info->refresh_rate);
2235
2236 fb_info->var.red.length = 8;
2237 fb_info->var.green.length = 8;
2238 fb_info->var.blue.length = 8;
2239 fb_info->var.activate = FB_ACTIVATE_NOW;
2240 fb_info->var.height = -1;
2241 fb_info->var.width = -1;
2242 fb_info->var.vmode = FB_VMODE_NONINTERLACED;
2243 fb_info->var.xres = xgifb_info->video_width;
2244 fb_info->var.xres_virtual = xgifb_info->video_width;
2245 fb_info->var.yres = xgifb_info->video_height;
2246 fb_info->var.yres_virtual = xgifb_info->video_height;
2247 fb_info->var.bits_per_pixel = xgifb_info->video_bpp;
2248
2249 XGIfb_bpp_to_var(xgifb_info, &fb_info->var);
2250
2251 fb_info->var.pixclock = (u32) (1000000000 /
2252 XGIfb_mode_rate_to_dclock(&xgifb_info->dev_info,
2253 hw_info,
2254 XGIbios_mode[xgifb_info->mode_idx].mode_no,
2255 xgifb_info->rate_idx));
2256
2257 if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info, hw_info,
2258 XGIbios_mode[xgifb_info->mode_idx].mode_no,
2259 xgifb_info->rate_idx,
2260 &fb_info->var.left_margin,
2261 &fb_info->var.right_margin,
2262 &fb_info->var.upper_margin,
2263 &fb_info->var.lower_margin,
2264 &fb_info->var.hsync_len,
2265 &fb_info->var.vsync_len,
2266 &fb_info->var.sync,
2267 &fb_info->var.vmode)) {
2268
2269 if ((fb_info->var.vmode & FB_VMODE_MASK) ==
2270 FB_VMODE_INTERLACED) {
2271 fb_info->var.yres <<= 1;
2272 fb_info->var.yres_virtual <<= 1;
2273 } else if ((fb_info->var.vmode & FB_VMODE_MASK) ==
2274 FB_VMODE_DOUBLE) {
2275 fb_info->var.pixclock >>= 1;
2276 fb_info->var.yres >>= 1;
2277 fb_info->var.yres_virtual >>= 1;
2278 }
2279
2280 }
2281
2282 strncpy(fb_info->fix.id, "XGI", sizeof(fb_info->fix.id) - 1);
2283 fb_info->fix.type = FB_TYPE_PACKED_PIXELS;
2284 fb_info->fix.xpanstep = 1;
2285 fb_info->fix.ypanstep = 1;
2286
2287 fb_info->flags = FBINFO_FLAG_DEFAULT;
2288 fb_info->screen_base = xgifb_info->video_vbase;
2289 fb_info->fbops = &XGIfb_ops;
2290 XGIfb_get_fix(&fb_info->fix, -1, fb_info);
2291 fb_info->pseudo_palette = xgifb_info->pseudo_palette;
2292
2293 fb_alloc_cmap(&fb_info->cmap, 256 , 0);
2294
2295 #ifdef CONFIG_MTRR
2296 xgifb_info->mtrr = mtrr_add(xgifb_info->video_base,
2297 xgifb_info->video_size, MTRR_TYPE_WRCOMB, 1);
2298 if (xgifb_info->mtrr >= 0)
2299 dev_info(&pdev->dev, "added MTRR\n");
2300 #endif
2301
2302 if (register_framebuffer(fb_info) < 0) {
2303 ret = -EINVAL;
2304 goto error_mtrr;
2305 }
2306
2307 dumpVGAReg();
2308
2309 return 0;
2310
2311 error_mtrr:
2312 #ifdef CONFIG_MTRR
2313 if (xgifb_info->mtrr >= 0)
2314 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2315 xgifb_info->video_size);
2316 #endif /* CONFIG_MTRR */
2317 error_1:
2318 iounmap(xgifb_info->mmio_vbase);
2319 iounmap(xgifb_info->video_vbase);
2320 release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2321 error_0:
2322 release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2323 error:
2324 framebuffer_release(fb_info);
2325 return ret;
2326 }
2327
2328 /*****************************************************/
2329 /* PCI DEVICE HANDLING */
2330 /*****************************************************/
2331
xgifb_remove(struct pci_dev * pdev)2332 static void __devexit xgifb_remove(struct pci_dev *pdev)
2333 {
2334 struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
2335 struct fb_info *fb_info = xgifb_info->fb_info;
2336
2337 unregister_framebuffer(fb_info);
2338 #ifdef CONFIG_MTRR
2339 if (xgifb_info->mtrr >= 0)
2340 mtrr_del(xgifb_info->mtrr, xgifb_info->video_base,
2341 xgifb_info->video_size);
2342 #endif /* CONFIG_MTRR */
2343 iounmap(xgifb_info->mmio_vbase);
2344 iounmap(xgifb_info->video_vbase);
2345 release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
2346 release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
2347 framebuffer_release(fb_info);
2348 pci_set_drvdata(pdev, NULL);
2349 }
2350
2351 static struct pci_driver xgifb_driver = {
2352 .name = "xgifb",
2353 .id_table = xgifb_pci_table,
2354 .probe = xgifb_probe,
2355 .remove = __devexit_p(xgifb_remove)
2356 };
2357
xgifb_init(void)2358 static int __init xgifb_init(void)
2359 {
2360 char *option = NULL;
2361
2362 if (forcecrt2type != NULL)
2363 XGIfb_search_crt2type(forcecrt2type);
2364 if (fb_get_options("xgifb", &option))
2365 return -ENODEV;
2366 XGIfb_setup(option);
2367
2368 return pci_register_driver(&xgifb_driver);
2369 }
2370
2371 module_init(xgifb_init);
2372
2373 /*****************************************************/
2374 /* MODULE */
2375 /*****************************************************/
2376
2377 #ifdef MODULE
2378
2379 MODULE_DESCRIPTION("Z7 Z9 Z9S Z11 framebuffer device driver");
2380 MODULE_LICENSE("GPL");
2381 MODULE_AUTHOR("XGITECH , Others");
2382
2383 module_param(mode, charp, 0);
2384 module_param(vesa, int, 0);
2385 module_param(filter, int, 0);
2386 module_param(forcecrt2type, charp, 0);
2387
2388 MODULE_PARM_DESC(forcecrt2type,
2389 "\nForce the second display output type. Possible values are NONE,\n"
2390 "LCD, TV, VGA, SVIDEO or COMPOSITE.\n");
2391
2392 MODULE_PARM_DESC(mode,
2393 "\nSelects the desired default display mode in the format XxYxDepth,\n"
2394 "eg. 1024x768x16.\n");
2395
2396 MODULE_PARM_DESC(vesa,
2397 "\nSelects the desired default display mode by VESA mode number, eg.\n"
2398 "0x117.\n");
2399
2400 MODULE_PARM_DESC(filter,
2401 "\nSelects TV flicker filter type (only for systems with a SiS301 video bridge).\n"
2402 "(Possible values 0-7, default: [no filter])\n");
2403
xgifb_remove_module(void)2404 static void __exit xgifb_remove_module(void)
2405 {
2406 pci_unregister_driver(&xgifb_driver);
2407 printk(KERN_DEBUG "xgifb: Module unloaded\n");
2408 }
2409
2410 module_exit(xgifb_remove_module);
2411
2412 #endif /* /MODULE */
2413