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[linux-2.6.git] / drivers / video / tridentfb.c
1 /*
2  * Frame buffer driver for Trident Blade and Image series
3  *
4  * Copyright 2001,2002 - Jani Monoses   <jani@iv.ro>
5  *
6  *
7  * CREDITS:(in order of appearance)
8  *      skeletonfb.c by Geert Uytterhoeven and other fb code in drivers/video
9  *      Special thanks ;) to Mattia Crivellini <tia@mclink.it>
10  *      much inspired by the XFree86 4.x Trident driver sources by Alan Hourihane
11  *      the FreeVGA project
12  *      Francesco Salvestrini <salvestrini@users.sf.net> XP support,code,suggestions
13  * TODO:
14  *      timing value tweaking so it looks good on every monitor in every mode
15  *      TGUI acceleration       
16  */
17
18 #include <linux/config.h>
19 #include <linux/module.h>
20 #include <linux/fb.h>
21 #include <linux/init.h>
22 #include <linux/pci.h>
23
24 #include <linux/delay.h>
25 #include <video/trident.h>
26
27 #define VERSION         "0.7.8-NEWAPI"
28
29 struct tridentfb_par {
30         int vclk;               //in MHz
31         void __iomem * io_virt; //iospace virtual memory address
32 };
33
34 static unsigned char eng_oper;          //engine operation...
35 static struct fb_ops tridentfb_ops;
36
37 static struct tridentfb_par default_par;
38
39 /* FIXME:kmalloc these 3 instead */
40 static struct fb_info fb_info;
41 static u32 pseudo_pal[16];
42
43
44 static struct fb_var_screeninfo default_var;
45
46 static struct fb_fix_screeninfo tridentfb_fix = {
47         .id = "Trident",        
48         .type = FB_TYPE_PACKED_PIXELS,
49         .ypanstep = 1,
50         .visual = FB_VISUAL_PSEUDOCOLOR,
51         .accel = FB_ACCEL_NONE,
52 };
53
54 static int chip_id;
55
56 static int defaultaccel;
57 static int displaytype;
58
59
60 /* defaults which are normally overriden by user values */
61
62 /* video mode */
63 static char * mode = "640x480";
64 static int bpp = 8;
65
66 static int noaccel;
67
68 static int center;
69 static int stretch;
70
71 static int fp;
72 static int crt;
73
74 static int memsize;
75 static int memdiff;
76 static int nativex;
77
78
79 module_param(mode, charp, 0);
80 module_param(bpp, int, 0);
81 module_param(center, int, 0);
82 module_param(stretch, int, 0);
83 module_param(noaccel, int, 0);
84 module_param(memsize, int, 0);
85 module_param(memdiff, int, 0);
86 module_param(nativex, int, 0);
87 module_param(fp, int, 0);
88 module_param(crt, int, 0);
89
90
91 static int chip3D;
92 static int chipcyber;
93
94 static int is3Dchip(int id)
95 {
96         return  ((id == BLADE3D) || (id == CYBERBLADEE4) ||
97                  (id == CYBERBLADEi7) || (id == CYBERBLADEi7D) ||
98                  (id == CYBER9397) || (id == CYBER9397DVD) ||
99                  (id == CYBER9520) || (id == CYBER9525DVD) ||
100                  (id == IMAGE975) || (id == IMAGE985) ||
101                  (id == CYBERBLADEi1) || (id == CYBERBLADEi1D) ||
102                  (id == CYBERBLADEAi1) || (id == CYBERBLADEAi1D) ||
103                  (id == CYBERBLADEXPm8) || (id == CYBERBLADEXPm16) ||
104                  (id == CYBERBLADEXPAi1));
105 }
106
107 static int iscyber(int id)
108 {
109         switch (id) {
110                 case CYBER9388:         
111                 case CYBER9382:
112                 case CYBER9385:
113                 case CYBER9397:
114                 case CYBER9397DVD:
115                 case CYBER9520:
116                 case CYBER9525DVD:
117                 case CYBERBLADEE4:
118                 case CYBERBLADEi7D:
119                 case CYBERBLADEi1:
120                 case CYBERBLADEi1D: 
121                 case CYBERBLADEAi1: 
122                 case CYBERBLADEAi1D:
123                 case CYBERBLADEXPAi1:
124                         return 1;
125                 
126                 case CYBER9320:
127                 case TGUI9660:     
128                 case IMAGE975:
129                 case IMAGE985:
130                 case BLADE3D:
131                 case CYBERBLADEi7: /* VIA MPV4 integrated version */
132
133                 default:
134                         /* case CYBERBLDAEXPm8:  Strange */
135                         /* case CYBERBLDAEXPm16: Strange */
136                         return 0;
137         }
138 }
139
140 #define CRT 0x3D0               //CRTC registers offset for color display
141
142 #ifndef TRIDENT_MMIO
143         #define TRIDENT_MMIO 1
144 #endif
145
146 #if TRIDENT_MMIO
147         #define t_outb(val,reg) writeb(val,((struct tridentfb_par *)(fb_info.par))->io_virt + reg)
148         #define t_inb(reg)      readb(((struct tridentfb_par*)(fb_info.par))->io_virt + reg)
149 #else
150         #define t_outb(val,reg) outb(val,reg)
151         #define t_inb(reg) inb(reg)
152 #endif
153
154
155 static struct accel_switch {
156         void (*init_accel)(int,int);
157         void (*wait_engine)(void);
158         void (*fill_rect)(__u32,__u32,__u32,__u32,__u32,__u32);
159         void (*copy_rect)(__u32,__u32,__u32,__u32,__u32,__u32);
160 } *acc;
161
162 #define writemmr(r,v)   writel(v, ((struct tridentfb_par *)fb_info.par)->io_virt + r)
163 #define readmmr(r)      readl(((struct tridentfb_par *)fb_info.par)->io_virt + r)
164
165
166
167 /*
168  * Blade specific acceleration.
169  */
170
171 #define point(x,y) ((y)<<16|(x))
172 #define STA     0x2120
173 #define CMD     0x2144
174 #define ROP     0x2148
175 #define CLR     0x2160
176 #define SR1     0x2100
177 #define SR2     0x2104
178 #define DR1     0x2108
179 #define DR2     0x210C
180
181 #define ROP_S   0xCC
182
183 static void blade_init_accel(int pitch,int bpp)
184 {
185         int v1 = (pitch>>3)<<20;
186         int tmp = 0,v2;
187         switch (bpp) {
188                 case 8:tmp = 0;break;
189                 case 15:tmp = 5;break;
190                 case 16:tmp = 1;break;
191                 case 24:
192                 case 32:tmp = 2;break;
193         }
194         v2 = v1 | (tmp<<29);
195         writemmr(0x21C0,v2);
196         writemmr(0x21C4,v2);
197         writemmr(0x21B8,v2);
198         writemmr(0x21BC,v2);
199         writemmr(0x21D0,v1);
200         writemmr(0x21D4,v1);
201         writemmr(0x21C8,v1);
202         writemmr(0x21CC,v1);
203         writemmr(0x216C,0);
204 }
205
206 static void blade_wait_engine(void)
207 {
208         while(readmmr(STA) & 0xFA800000);
209 }
210
211 static void blade_fill_rect(__u32 x,__u32 y,__u32 w,__u32 h,__u32 c,__u32 rop)
212 {
213         writemmr(CLR,c);
214         writemmr(ROP,rop ? 0x66:ROP_S);
215         writemmr(CMD,0x20000000|1<<19|1<<4|2<<2);
216
217         writemmr(DR1,point(x,y));
218         writemmr(DR2,point(x+w-1,y+h-1));
219 }
220
221 static void blade_copy_rect(__u32 x1,__u32 y1,__u32 x2,__u32 y2,__u32 w,__u32 h)
222 {
223         __u32 s1,s2,d1,d2;
224         int direction = 2;
225         s1 = point(x1,y1);
226         s2 = point(x1+w-1,y1+h-1);
227         d1 = point(x2,y2);
228         d2 = point(x2+w-1,y2+h-1);
229
230         if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
231                         direction = 0;
232
233
234         writemmr(ROP,ROP_S);
235         writemmr(CMD,0xE0000000|1<<19|1<<4|1<<2|direction);
236
237         writemmr(SR1,direction?s2:s1);
238         writemmr(SR2,direction?s1:s2);
239         writemmr(DR1,direction?d2:d1);
240         writemmr(DR2,direction?d1:d2);
241 }
242
243 static struct accel_switch accel_blade = {
244         blade_init_accel,
245         blade_wait_engine,
246         blade_fill_rect,
247         blade_copy_rect,
248 };
249
250
251 /*
252  * BladeXP specific acceleration functions
253  */
254
255 #define ROP_P 0xF0
256 #define masked_point(x,y) ((y & 0xffff)<<16|(x & 0xffff))
257
258 static void xp_init_accel(int pitch,int bpp)
259 {
260         int tmp = 0,v1;
261         unsigned char x = 0;
262
263         switch (bpp) {
264                 case 8:  x = 0; break;
265                 case 16: x = 1; break;
266                 case 24: x = 3; break;
267                 case 32: x = 2; break;
268         }
269
270         switch (pitch << (bpp >> 3)) {
271                 case 8192:
272                 case 512:  x |= 0x00; break;
273                 case 1024: x |= 0x04; break;
274                 case 2048: x |= 0x08; break;
275                 case 4096: x |= 0x0C; break;
276         }
277
278         t_outb(x,0x2125);
279
280         eng_oper = x | 0x40;
281
282         switch (bpp) {
283                 case 8:  tmp = 18; break;
284                 case 15:
285                 case 16: tmp = 19; break;
286                 case 24:
287                 case 32: tmp = 20; break;
288         }
289
290         v1 = pitch << tmp;
291
292         writemmr(0x2154,v1);
293         writemmr(0x2150,v1);
294         t_outb(3,0x2126);
295 }
296
297 static void xp_wait_engine(void)
298 {
299         int busy;
300         int count, timeout;
301
302         count = 0;
303         timeout = 0;
304         for (;;) {
305                 busy = t_inb(STA) & 0x80;
306                 if (busy != 0x80)
307                         return;
308                 count++;
309                 if (count == 10000000) {
310                         /* Timeout */
311                         count = 9990000;
312                         timeout++;
313                         if (timeout == 8) {
314                                 /* Reset engine */
315                                 t_outb(0x00, 0x2120);
316                                 return;
317                         }
318                 }
319         }
320 }
321
322 static void xp_fill_rect(__u32 x,__u32 y,__u32 w,__u32 h,__u32 c,__u32 rop)
323 {
324         writemmr(0x2127,ROP_P);
325         writemmr(0x2158,c);
326         writemmr(0x2128,0x4000);
327         writemmr(0x2140,masked_point(h,w));
328         writemmr(0x2138,masked_point(y,x));
329         t_outb(0x01,0x2124);
330         t_outb(eng_oper,0x2125);
331 }
332
333 static void xp_copy_rect(__u32 x1,__u32 y1,__u32 x2,__u32 y2,__u32 w,__u32 h)
334 {
335         int direction;
336         __u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
337
338         direction = 0x0004;
339         
340         if ((x1 < x2) && (y1 == y2)) {
341                 direction |= 0x0200;
342                 x1_tmp = x1 + w - 1;
343                 x2_tmp = x2 + w - 1;
344         } else {
345                 x1_tmp = x1;
346                 x2_tmp = x2;
347         }
348   
349         if (y1 < y2) {
350                 direction |= 0x0100;
351                 y1_tmp = y1 + h - 1;
352                 y2_tmp = y2 + h - 1;
353         } else {
354                 y1_tmp = y1;
355                 y2_tmp = y2;
356         }
357
358         writemmr(0x2128,direction);     
359         t_outb(ROP_S,0x2127);
360         writemmr(0x213C,masked_point(y1_tmp,x1_tmp));
361         writemmr(0x2138,masked_point(y2_tmp,x2_tmp));
362         writemmr(0x2140,masked_point(h,w));
363         t_outb(0x01,0x2124);
364 }
365
366 static struct accel_switch accel_xp = {
367         xp_init_accel,
368         xp_wait_engine,
369         xp_fill_rect,
370         xp_copy_rect,
371 };
372
373
374 /*
375  * Image specific acceleration functions
376  */
377 static void image_init_accel(int pitch,int bpp)
378 {
379         int tmp = 0;
380         switch (bpp) {
381                 case 8:tmp = 0;break;
382                 case 15:tmp = 5;break;
383                 case 16:tmp = 1;break;
384                 case 24:
385                 case 32:tmp = 2;break;
386         }
387         writemmr(0x2120, 0xF0000000);
388         writemmr(0x2120, 0x40000000|tmp);
389         writemmr(0x2120, 0x80000000);
390         writemmr(0x2144, 0x00000000);
391         writemmr(0x2148, 0x00000000);
392         writemmr(0x2150, 0x00000000);
393         writemmr(0x2154, 0x00000000);
394         writemmr(0x2120, 0x60000000|(pitch<<16) |pitch);
395         writemmr(0x216C, 0x00000000);
396         writemmr(0x2170, 0x00000000);
397         writemmr(0x217C, 0x00000000);
398         writemmr(0x2120, 0x10000000);
399         writemmr(0x2130, (2047 << 16) | 2047);
400 }
401
402 static void image_wait_engine(void)
403 {
404         while(readmmr(0x2164) & 0xF0000000);
405 }
406
407 static void image_fill_rect(__u32 x, __u32 y, __u32 w, __u32 h, __u32 c, __u32 rop)
408 {
409         writemmr(0x2120,0x80000000);
410         writemmr(0x2120,0x90000000|ROP_S);
411
412         writemmr(0x2144,c);
413
414         writemmr(DR1,point(x,y));
415         writemmr(DR2,point(x+w-1,y+h-1));
416
417         writemmr(0x2124,0x80000000|3<<22|1<<10|1<<9);
418 }
419
420 static void image_copy_rect(__u32 x1,__u32 y1,__u32 x2,__u32 y2,__u32 w,__u32 h)
421 {
422         __u32 s1,s2,d1,d2;
423         int direction = 2;
424         s1 = point(x1,y1);
425         s2 = point(x1+w-1,y1+h-1);
426         d1 = point(x2,y2);
427         d2 = point(x2+w-1,y2+h-1);
428
429         if ((y1 > y2) || ((y1 == y2) && (x1 >x2)))
430                         direction = 0;
431
432         writemmr(0x2120,0x80000000);
433         writemmr(0x2120,0x90000000|ROP_S);
434
435         writemmr(SR1,direction?s2:s1);
436         writemmr(SR2,direction?s1:s2);
437         writemmr(DR1,direction?d2:d1);
438         writemmr(DR2,direction?d1:d2);
439         writemmr(0x2124,0x80000000|1<<22|1<<10|1<<7|direction);
440 }
441
442
443 static struct accel_switch accel_image = {
444         image_init_accel,
445         image_wait_engine,
446         image_fill_rect,
447         image_copy_rect,
448 };
449
450 /*
451  * Accel functions called by the upper layers
452  */
453 #ifdef CONFIG_FB_TRIDENT_ACCEL
454 static void tridentfb_fillrect(struct fb_info * info, const struct fb_fillrect *fr)
455 {
456         int bpp = info->var.bits_per_pixel;
457         int col = 0;
458         
459         switch (bpp) {
460                 default:
461                 case 8: col |= fr->color;
462                         col |= col << 8;
463                         col |= col << 16;
464                         break;
465                 case 16: col = ((u32 *)(info->pseudo_palette))[fr->color];
466                         
467                          break;
468                 case 32: col = ((u32 *)(info->pseudo_palette))[fr->color];
469                          break;
470         }                
471                         
472         acc->fill_rect(fr->dx, fr->dy, fr->width, fr->height, col, fr->rop);
473         acc->wait_engine();
474 }
475 static void tridentfb_copyarea(struct fb_info *info, const struct fb_copyarea *ca)
476 {
477         acc->copy_rect(ca->sx,ca->sy,ca->dx,ca->dy,ca->width,ca->height);
478         acc->wait_engine();
479 }
480 #else /* !CONFIG_FB_TRIDENT_ACCEL */
481 #define tridentfb_fillrect cfb_fillrect
482 #define tridentfb_copyarea cfb_copyarea
483 #endif /* CONFIG_FB_TRIDENT_ACCEL */
484
485
486 /*
487  * Hardware access functions
488  */
489
490 static inline unsigned char read3X4(int reg)
491 {
492         struct tridentfb_par * par = (struct tridentfb_par *)fb_info.par;
493         writeb(reg, par->io_virt + CRT + 4);
494         return readb( par->io_virt + CRT + 5);
495 }
496
497 static inline void write3X4(int reg, unsigned char val)
498 {
499         struct tridentfb_par * par = (struct tridentfb_par *)fb_info.par;
500         writeb(reg, par->io_virt + CRT + 4);
501         writeb(val, par->io_virt + CRT + 5);
502 }
503
504 static inline unsigned char read3C4(int reg)
505 {
506         t_outb(reg, 0x3C4);
507         return t_inb(0x3C5);
508 }
509
510 static inline void write3C4(int reg, unsigned char val)
511 {
512         t_outb(reg, 0x3C4);
513         t_outb(val, 0x3C5);
514 }
515
516 static inline unsigned char read3CE(int reg)
517 {
518         t_outb(reg, 0x3CE);
519         return t_inb(0x3CF);
520 }
521
522 static inline void writeAttr(int reg, unsigned char val)
523 {
524         readb(((struct tridentfb_par *)fb_info.par)->io_virt + CRT + 0x0A);     //flip-flop to index
525         t_outb(reg, 0x3C0);
526         t_outb(val, 0x3C0);
527 }
528
529 static inline void write3CE(int reg, unsigned char val)
530 {
531         t_outb(reg, 0x3CE);
532         t_outb(val, 0x3CF);
533 }
534
535 static inline void enable_mmio(void)
536 {
537         /* Goto New Mode */
538         outb(0x0B, 0x3C4);
539         inb(0x3C5);
540
541         /* Unprotect registers */
542         outb(NewMode1, 0x3C4);
543         outb(0x80, 0x3C5);
544   
545         /* Enable MMIO */
546         outb(PCIReg, 0x3D4); 
547         outb(inb(0x3D5) | 0x01, 0x3D5);
548 }
549
550
551 #define crtc_unlock()   write3X4(CRTVSyncEnd, read3X4(CRTVSyncEnd) & 0x7F)
552
553 /*  Return flat panel's maximum x resolution */
554 static int __init get_nativex(void)
555 {
556         int x,y,tmp;
557
558         if (nativex)
559                 return nativex;
560
561         tmp = (read3CE(VertStretch) >> 4) & 3;
562
563         switch (tmp) {
564                 case 0: x = 1280; y = 1024; break;
565                 case 2: x = 1024; y = 768;  break;
566                 case 3: x = 800;  y = 600;  break; 
567                 case 4: x = 1400; y = 1050; break;
568                 case 1: 
569                 default:x = 640;  y = 480;  break;
570         }
571
572         output("%dx%d flat panel found\n", x, y);
573         return x;
574 }
575
576 /* Set pitch */
577 static void set_lwidth(int width)
578 {
579         write3X4(Offset, width & 0xFF);
580         write3X4(AddColReg, (read3X4(AddColReg) & 0xCF) | ((width & 0x300) >>4));
581 }
582
583 /* For resolutions smaller than FP resolution stretch */
584 static void screen_stretch(void)
585 {
586         if (chip_id != CYBERBLADEXPAi1)
587                 write3CE(BiosReg,0);
588         else
589                 write3CE(BiosReg,8);
590         write3CE(VertStretch,(read3CE(VertStretch) & 0x7C) | 1);
591         write3CE(HorStretch,(read3CE(HorStretch) & 0x7C) | 1);
592 }
593
594 /* For resolutions smaller than FP resolution center */
595 static void screen_center(void)
596 {
597         write3CE(VertStretch,(read3CE(VertStretch) & 0x7C) | 0x80);
598         write3CE(HorStretch,(read3CE(HorStretch) & 0x7C) | 0x80);
599 }
600
601 /* Address of first shown pixel in display memory */
602 static void set_screen_start(int base)
603 {
604         write3X4(StartAddrLow, base & 0xFF);
605         write3X4(StartAddrHigh, (base & 0xFF00) >> 8);
606         write3X4(CRTCModuleTest, (read3X4(CRTCModuleTest) & 0xDF) | ((base & 0x10000) >> 11));
607         write3X4(CRTHiOrd, (read3X4(CRTHiOrd) & 0xF8) | ((base & 0xE0000) >> 17));
608 }
609
610 /* Use 20.12 fixed-point for NTSC value and frequency calculation */
611 #define calc_freq(n,m,k)  ( ((unsigned long)0xE517 * (n+8) / ((m+2)*(1<<k))) >> 12 )
612
613 /* Set dotclock frequency */
614 static void set_vclk(int freq)
615 {
616         int m,n,k;
617         int f,fi,d,di;
618         unsigned char lo=0,hi=0;
619
620         d = 20;
621         for(k = 2;k>=0;k--)
622         for(m = 0;m<63;m++)
623         for(n = 0;n<128;n++) {
624                 fi = calc_freq(n,m,k);
625                 if ((di = abs(fi - freq)) < d) {
626                         d = di;
627                         f = fi;
628                         lo = n;
629                         hi = (k<<6) | m;
630                 }
631         }
632         if (chip3D) {
633                 write3C4(ClockHigh,hi);
634                 write3C4(ClockLow,lo);
635         } else {
636                 outb(lo,0x43C8);
637                 outb(hi,0x43C9);
638         }
639         debug("VCLK = %X %X\n",hi,lo);
640 }
641
642 /* Set number of lines for flat panels*/
643 static void set_number_of_lines(int lines)
644 {
645         int tmp = read3CE(CyberEnhance) & 0x8F;
646         if (lines > 1024)
647                 tmp |= 0x50;
648         else if (lines > 768)
649                 tmp |= 0x30;
650         else if (lines > 600)
651                 tmp |= 0x20;
652         else if (lines > 480)
653                 tmp |= 0x10;
654         write3CE(CyberEnhance, tmp);
655 }
656
657 /*
658  * If we see that FP is active we assume we have one.
659  * Otherwise we have a CRT display.User can override.
660  */
661 static unsigned int __init get_displaytype(void)
662 {
663         if (fp)
664                 return DISPLAY_FP;
665         if (crt || !chipcyber)
666                 return DISPLAY_CRT;
667         return (read3CE(FPConfig) & 0x10)?DISPLAY_FP:DISPLAY_CRT;
668 }
669
670 /* Try detecting the video memory size */
671 static unsigned int __init get_memsize(void)
672 {
673         unsigned char tmp, tmp2;
674         unsigned int k;
675
676         /* If memory size provided by user */
677         if (memsize)
678                 k = memsize * Kb;
679         else
680         switch (chip_id) {
681                 case CYBER9525DVD:    k = 2560 * Kb; break;
682                 default:
683                         tmp = read3X4(SPR) & 0x0F;
684                         switch (tmp) {
685
686                                 case 0x01: k = 512;     break;
687                                 case 0x02: k = 6 * Mb;  break; /* XP */
688                                 case 0x03: k = 1 * Mb;  break;
689                                 case 0x04: k = 8 * Mb;  break;
690                                 case 0x06: k = 10 * Mb; break; /* XP */
691                                 case 0x07: k = 2 * Mb;  break;
692                                 case 0x08: k = 12 * Mb; break; /* XP */
693                                 case 0x0A: k = 14 * Mb; break; /* XP */
694                                 case 0x0C: k = 16 * Mb; break; /* XP */
695                                 case 0x0E:                     /* XP */
696   
697                                         tmp2 = read3C4(0xC1);
698                                         switch (tmp2) {
699                                                 case 0x00: k = 20 * Mb; break;
700                                                 case 0x01: k = 24 * Mb; break;
701                                                 case 0x10: k = 28 * Mb; break;
702                                                 case 0x11: k = 32 * Mb; break;
703                                                 default:   k = 1 * Mb;  break;
704                                         }
705                                 break;
706         
707                                 case 0x0F: k = 4 * Mb; break;
708                                 default:   k = 1 * Mb;
709                         }
710         }
711
712         k -= memdiff * Kb;
713         output("framebuffer size = %d Kb\n", k/Kb);
714         return k;
715 }
716
717 /* See if we can handle the video mode described in var */
718 static int tridentfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
719 {
720         int bpp = var->bits_per_pixel;
721         debug("enter\n");
722
723         /* check color depth */
724         if (bpp == 24 )
725                 bpp = var->bits_per_pixel = 32;
726         /* check whether resolution fits on panel and in memory*/
727         if (flatpanel && nativex && var->xres > nativex)
728                 return -EINVAL;
729         if (var->xres * var->yres_virtual * bpp/8 > info->fix.smem_len)
730                 return -EINVAL;
731
732         switch (bpp) {
733                 case 8:
734                         var->red.offset = 0;
735                         var->green.offset = 0;
736                         var->blue.offset = 0;
737                         var->red.length = 6;
738                         var->green.length = 6;
739                         var->blue.length = 6;
740                         break;
741                 case 16:
742                         var->red.offset = 11;
743                         var->green.offset = 5;
744                         var->blue.offset = 0;
745                         var->red.length = 5;
746                         var->green.length = 6;
747                         var->blue.length = 5;
748                         break;
749                 case 32:
750                         var->red.offset = 16;
751                         var->green.offset = 8;
752                         var->blue.offset = 0;
753                         var->red.length = 8;
754                         var->green.length = 8;
755                         var->blue.length = 8;
756                         break;
757                 default:
758                         return -EINVAL; 
759         }
760         debug("exit\n");
761
762         return 0;
763
764 }
765 /* Pan the display */
766 static int tridentfb_pan_display(struct fb_var_screeninfo *var,
767                                    struct fb_info *info)
768 {
769         unsigned int offset;
770
771         debug("enter\n");
772         offset = (var->xoffset + (var->yoffset * var->xres))
773                         * var->bits_per_pixel/32;
774         info->var.xoffset = var->xoffset;
775         info->var.yoffset = var->yoffset;
776         set_screen_start(offset);
777         debug("exit\n");
778         return 0;
779 }
780
781 #define shadowmode_on()  write3CE(CyberControl,read3CE(CyberControl) | 0x81)
782 #define shadowmode_off() write3CE(CyberControl,read3CE(CyberControl) & 0x7E)
783
784 /* Set the hardware to the requested video mode */
785 static int tridentfb_set_par(struct fb_info *info)
786 {
787         struct tridentfb_par * par = (struct tridentfb_par *)(info->par);
788         u32     htotal,hdispend,hsyncstart,hsyncend,hblankstart,hblankend,
789                 vtotal,vdispend,vsyncstart,vsyncend,vblankstart,vblankend;
790         struct fb_var_screeninfo *var = &info->var;     
791         int bpp = var->bits_per_pixel;
792         unsigned char tmp;
793         debug("enter\n");
794         htotal = (var->xres + var->left_margin + var->right_margin + var->hsync_len)/8 - 10;
795         hdispend = var->xres/8 - 1;
796         hsyncstart = (var->xres + var->right_margin)/8;
797         hsyncend = var->hsync_len/8;
798         hblankstart = hdispend + 1;
799         hblankend = htotal + 5;
800
801         vtotal = var->yres + var->upper_margin + var->lower_margin + var->vsync_len - 2;
802         vdispend = var->yres - 1;
803         vsyncstart = var->yres + var->lower_margin;
804         vsyncend = var->vsync_len;
805         vblankstart = var->yres;
806         vblankend = vtotal + 2;
807
808         enable_mmio();
809         crtc_unlock();
810         write3CE(CyberControl,8);
811
812         if (flatpanel && var->xres < nativex) {
813                 /*
814                  * on flat panels with native size larger
815                  * than requested resolution decide whether
816                  * we stretch or center
817                  */
818                 t_outb(0xEB,0x3C2);
819
820                 shadowmode_on();
821
822                 if (center) 
823                         screen_center();
824                 else if (stretch)
825                         screen_stretch();
826
827         } else {
828                 t_outb(0x2B,0x3C2);
829                 write3CE(CyberControl,8);
830         }
831
832         /* vertical timing values */
833         write3X4(CRTVTotal, vtotal & 0xFF);
834         write3X4(CRTVDispEnd, vdispend & 0xFF);
835         write3X4(CRTVSyncStart, vsyncstart & 0xFF);
836         write3X4(CRTVSyncEnd, (vsyncend & 0x0F));
837         write3X4(CRTVBlankStart, vblankstart & 0xFF);
838         write3X4(CRTVBlankEnd, 0/*p->vblankend & 0xFF*/);
839
840         /* horizontal timing values */
841         write3X4(CRTHTotal, htotal & 0xFF);
842         write3X4(CRTHDispEnd, hdispend & 0xFF);
843         write3X4(CRTHSyncStart, hsyncstart & 0xFF);
844         write3X4(CRTHSyncEnd, (hsyncend & 0x1F) | ((hblankend & 0x20)<<2));
845         write3X4(CRTHBlankStart, hblankstart & 0xFF);
846         write3X4(CRTHBlankEnd, 0/*(p->hblankend & 0x1F)*/);
847
848         /* higher bits of vertical timing values */
849         tmp = 0x10;
850         if (vtotal & 0x100) tmp |= 0x01;
851         if (vdispend & 0x100) tmp |= 0x02;
852         if (vsyncstart & 0x100) tmp |= 0x04;
853         if (vblankstart & 0x100) tmp |= 0x08;
854
855         if (vtotal & 0x200) tmp |= 0x20;
856         if (vdispend & 0x200) tmp |= 0x40;
857         if (vsyncstart & 0x200) tmp |= 0x80;
858         write3X4(CRTOverflow, tmp);
859
860         tmp = read3X4(CRTHiOrd) | 0x08; //line compare bit 10
861         if (vtotal & 0x400) tmp |= 0x80;
862         if (vblankstart & 0x400) tmp |= 0x40;
863         if (vsyncstart & 0x400) tmp |= 0x20;
864         if (vdispend & 0x400) tmp |= 0x10;
865         write3X4(CRTHiOrd, tmp);
866
867         tmp = 0;
868         if (htotal & 0x800) tmp |= 0x800 >> 11;
869         if (hblankstart & 0x800) tmp |= 0x800 >> 7;
870         write3X4(HorizOverflow, tmp);
871         
872         tmp = 0x40;
873         if (vblankstart & 0x200) tmp |= 0x20;
874 //FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80;  //double scan for 200 line modes
875         write3X4(CRTMaxScanLine, tmp);
876
877         write3X4(CRTLineCompare,0xFF);
878         write3X4(CRTPRowScan,0);
879         write3X4(CRTModeControl,0xC3);
880
881         write3X4(LinearAddReg,0x20);    //enable linear addressing
882
883         tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84:0x80;
884         write3X4(CRTCModuleTest,tmp);   //enable access extended memory
885
886         write3X4(GraphEngReg, 0x80);    //enable GE for text acceleration
887
888 #ifdef CONFIG_FB_TRIDENT_ACCEL  
889         acc->init_accel(info->var.xres,bpp);
890 #endif
891         
892         switch (bpp) {
893                 case 8:  tmp = 0x00; break;
894                 case 16: tmp = 0x05; break;
895                 case 24: tmp = 0x29; break;
896                 case 32: tmp = 0x09; 
897         }
898
899         write3X4(PixelBusReg, tmp);
900
901         tmp = 0x10;
902         if (chipcyber)
903             tmp |= 0x20;
904         write3X4(DRAMControl, tmp);     //both IO,linear enable
905
906         write3X4(InterfaceSel, read3X4(InterfaceSel) | 0x40);
907         write3X4(Performance,0x92);
908         write3X4(PCIReg,0x07);          //MMIO & PCI read and write burst enable
909
910         /* convert from picoseconds to MHz */
911         par->vclk = 1000000/info->var.pixclock;
912         if (bpp == 32)
913                 par->vclk *=2;
914         set_vclk(par->vclk);
915
916         write3C4(0,3);
917         write3C4(1,1);          //set char clock 8 dots wide
918         write3C4(2,0x0F);       //enable 4 maps because needed in chain4 mode
919         write3C4(3,0);
920         write3C4(4,0x0E);       //memory mode enable bitmaps ??
921
922         write3CE(MiscExtFunc,(bpp==32)?0x1A:0x12);      //divide clock by 2 if 32bpp
923                                                         //chain4 mode display and CPU path
924         write3CE(0x5,0x40);     //no CGA compat,allow 256 col
925         write3CE(0x6,0x05);     //graphics mode
926         write3CE(0x7,0x0F);     //planes?
927
928         if (chip_id == CYBERBLADEXPAi1) {
929                 /* This fixes snow-effect in 32 bpp */
930                 write3X4(CRTHSyncStart,0x84);
931         }
932
933         writeAttr(0x10,0x41);   //graphics mode and support 256 color modes
934         writeAttr(0x12,0x0F);   //planes
935         writeAttr(0x13,0);      //horizontal pel panning
936
937         //colors
938         for(tmp = 0;tmp < 0x10;tmp++)
939                 writeAttr(tmp,tmp);
940         readb(par->io_virt + CRT + 0x0A);       //flip-flop to index
941         t_outb(0x20, 0x3C0);                    //enable attr
942
943         switch (bpp) {
944                 case 8: tmp = 0;break;          //256 colors
945                 case 15: tmp = 0x10;break;
946                 case 16: tmp = 0x30;break;      //hicolor
947                 case 24:                        //truecolor
948                 case 32: tmp = 0xD0;break;
949         }
950
951         t_inb(0x3C8);
952         t_inb(0x3C6);
953         t_inb(0x3C6);
954         t_inb(0x3C6);
955         t_inb(0x3C6);
956         t_outb(tmp,0x3C6);
957         t_inb(0x3C8);
958
959         if (flatpanel)
960                 set_number_of_lines(info->var.yres);
961         set_lwidth(info->var.xres * bpp/(4*16));
962         info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
963         info->fix.line_length = info->var.xres * (bpp >> 3);  
964         info->cmap.len = (bpp == 8) ? 256: 16;
965         debug("exit\n");
966         return 0;
967 }
968
969 /* Set one color register */
970 static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green,
971                                  unsigned blue, unsigned transp,
972                                  struct fb_info *info)
973 {
974         int bpp = info->var.bits_per_pixel;
975
976         if (regno >= info->cmap.len)
977                 return 1;
978
979
980         if (bpp==8) {
981                 t_outb(0xFF,0x3C6);
982                 t_outb(regno,0x3C8);
983
984                 t_outb(red>>10,0x3C9);
985                 t_outb(green>>10,0x3C9);
986                 t_outb(blue>>10,0x3C9);
987
988         } else if (bpp == 16) { /* RGB 565 */
989                 u32 col;
990
991                 col = (red & 0xF800) | ((green & 0xFC00) >> 5) |
992                         ((blue & 0xF800) >> 11);
993                 col |= col << 16;       
994                 ((u32 *)(info->pseudo_palette))[regno] = col;
995         } else if (bpp == 32)           /* ARGB 8888 */
996                 ((u32*)info->pseudo_palette)[regno] =
997                         ((transp & 0xFF00) <<16)        |
998                         ((red & 0xFF00) << 8)           |
999                         ((green & 0xFF00))              |
1000                         ((blue & 0xFF00)>>8);
1001
1002 //      debug("exit\n");
1003         return 0;
1004 }
1005
1006 /* Try blanking the screen.For flat panels it does nothing */
1007 static int tridentfb_blank(int blank_mode, struct fb_info *info)
1008 {
1009         unsigned char PMCont,DPMSCont;
1010
1011         debug("enter\n");
1012         if (flatpanel)
1013                 return 0;
1014         t_outb(0x04,0x83C8); /* Read DPMS Control */
1015         PMCont = t_inb(0x83C6) & 0xFC;
1016         DPMSCont = read3CE(PowerStatus) & 0xFC;
1017         switch (blank_mode)
1018         {
1019         case FB_BLANK_UNBLANK:
1020                 /* Screen: On, HSync: On, VSync: On */
1021         case FB_BLANK_NORMAL:
1022                 /* Screen: Off, HSync: On, VSync: On */
1023                 PMCont |= 0x03;
1024                 DPMSCont |= 0x00;
1025                 break;
1026         case FB_BLANK_HSYNC_SUSPEND:
1027                 /* Screen: Off, HSync: Off, VSync: On */
1028                 PMCont |= 0x02;
1029                 DPMSCont |= 0x01;
1030                 break;
1031         case FB_BLANK_VSYNC_SUSPEND:
1032                 /* Screen: Off, HSync: On, VSync: Off */
1033                 PMCont |= 0x02;
1034                 DPMSCont |= 0x02;
1035                 break;
1036         case FB_BLANK_POWERDOWN:
1037                 /* Screen: Off, HSync: Off, VSync: Off */
1038                 PMCont |= 0x00;
1039                 DPMSCont |= 0x03;
1040                 break;
1041         }
1042
1043         write3CE(PowerStatus,DPMSCont);
1044         t_outb(4,0x83C8);
1045         t_outb(PMCont,0x83C6);
1046
1047         debug("exit\n");
1048
1049         /* let fbcon do a softblank for us */
1050         return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0;
1051 }
1052
1053 static int __devinit trident_pci_probe(struct pci_dev * dev, const struct pci_device_id * id)
1054 {
1055         int err;
1056         unsigned char revision;
1057
1058         err = pci_enable_device(dev);
1059         if (err)
1060                 return err;
1061
1062         chip_id = id->device;
1063
1064         /* If PCI id is 0x9660 then further detect chip type */
1065         
1066         if (chip_id == TGUI9660) {
1067                 outb(RevisionID,0x3C4);
1068                 revision = inb(0x3C5);  
1069         
1070                 switch (revision) {
1071                         case 0x22:
1072                         case 0x23: chip_id = CYBER9397;break;
1073                         case 0x2A: chip_id = CYBER9397DVD;break;
1074                         case 0x30:
1075                         case 0x33:
1076                         case 0x34:
1077                         case 0x35:
1078                         case 0x38:
1079                         case 0x3A:
1080                         case 0xB3: chip_id = CYBER9385;break;
1081                         case 0x40 ... 0x43: chip_id = CYBER9382;break;
1082                         case 0x4A: chip_id = CYBER9388;break;
1083                         default:break;  
1084                 }
1085         }
1086
1087         chip3D = is3Dchip(chip_id);
1088         chipcyber = iscyber(chip_id);
1089
1090         if (is_xp(chip_id)) {
1091                 acc = &accel_xp;
1092         } else 
1093         if (is_blade(chip_id)) {
1094                 acc = &accel_blade;
1095         } else {
1096                 acc = &accel_image;
1097         }
1098
1099         /* acceleration is on by default for 3D chips */
1100         defaultaccel = chip3D && !noaccel;
1101
1102         fb_info.par = &default_par;
1103
1104         /* setup MMIO region */
1105         tridentfb_fix.mmio_start = pci_resource_start(dev,1);
1106         tridentfb_fix.mmio_len = chip3D ? 0x20000:0x10000;
1107
1108         if (!request_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len, "tridentfb")) {
1109                 debug("request_region failed!\n");
1110                 return -1;
1111         }
1112
1113         default_par.io_virt = ioremap_nocache(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1114
1115         if (!default_par.io_virt) {
1116                 release_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1117                 debug("ioremap failed\n");
1118                 return -1;
1119         }
1120
1121         enable_mmio();
1122         
1123         /* setup framebuffer memory */
1124         tridentfb_fix.smem_start = pci_resource_start(dev,0);
1125         tridentfb_fix.smem_len = get_memsize();
1126         
1127         if (!request_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len, "tridentfb")) {
1128                 debug("request_mem_region failed!\n");
1129                 return -1;
1130         }
1131
1132         fb_info.screen_base = ioremap_nocache(tridentfb_fix.smem_start,
1133                                         tridentfb_fix.smem_len);
1134
1135         if (!fb_info.screen_base) {
1136                 release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
1137                 debug("ioremap failed\n");
1138                 return -1;
1139         }
1140
1141         output("%s board found\n", pci_name(dev));
1142 #if 0   
1143         output("Trident board found : mem = %X,io = %X, mem_v = %X, io_v = %X\n",
1144                 tridentfb_fix.smem_start, tridentfb_fix.mmio_start, fb_info.screen_base, default_par.io_virt);
1145 #endif
1146         displaytype = get_displaytype();
1147
1148         if(flatpanel)
1149                 nativex = get_nativex();
1150
1151         fb_info.fix = tridentfb_fix;
1152         fb_info.fbops = &tridentfb_ops;
1153
1154
1155         fb_info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1156 #ifdef CONFIG_FB_TRIDENT_ACCEL
1157         fb_info.flags |= FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT;
1158 #endif
1159         fb_info.pseudo_palette = pseudo_pal;
1160
1161         if (!fb_find_mode(&default_var,&fb_info,mode,NULL,0,NULL,bpp))
1162                 return -EINVAL;
1163         fb_alloc_cmap(&fb_info.cmap,256,0);
1164         if (defaultaccel && acc)
1165                 default_var.accel_flags |= FB_ACCELF_TEXT;
1166         else
1167                 default_var.accel_flags &= ~FB_ACCELF_TEXT;
1168         default_var.activate |= FB_ACTIVATE_NOW;
1169         fb_info.var = default_var;
1170         fb_info.device = &dev->dev;
1171         if (register_framebuffer(&fb_info) < 0) {
1172                 printk(KERN_ERR "tridentfb: could not register Trident framebuffer\n");
1173                 return -EINVAL;
1174         }
1175         output("fb%d: %s frame buffer device %dx%d-%dbpp\n",
1176            fb_info.node, fb_info.fix.id,default_var.xres,
1177            default_var.yres,default_var.bits_per_pixel);
1178         return 0;
1179 }
1180
1181 static void __devexit trident_pci_remove(struct pci_dev * dev)
1182 {
1183         struct tridentfb_par *par = (struct tridentfb_par*)fb_info.par;
1184         unregister_framebuffer(&fb_info);
1185         iounmap(par->io_virt);
1186         iounmap(fb_info.screen_base);
1187         release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
1188         release_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1189 }
1190
1191 /* List of boards that we are trying to support */
1192 static struct pci_device_id trident_devices[] = {
1193         {PCI_VENDOR_ID_TRIDENT, BLADE3D, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1194         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1195         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7D, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1196         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1197         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1D, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1198         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1199         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1D, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1200         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEE4, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1201         {PCI_VENDOR_ID_TRIDENT, TGUI9660, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1202         {PCI_VENDOR_ID_TRIDENT, IMAGE975, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1203         {PCI_VENDOR_ID_TRIDENT, IMAGE985, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1204         {PCI_VENDOR_ID_TRIDENT, CYBER9320, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1205         {PCI_VENDOR_ID_TRIDENT, CYBER9388, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1206         {PCI_VENDOR_ID_TRIDENT, CYBER9520, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1207         {PCI_VENDOR_ID_TRIDENT, CYBER9525DVD, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1208         {PCI_VENDOR_ID_TRIDENT, CYBER9397, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1209         {PCI_VENDOR_ID_TRIDENT, CYBER9397DVD, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1210         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPAi1, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1211         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm8, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1212         {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm16, PCI_ANY_ID,PCI_ANY_ID,0,0,0},
1213         {0,}
1214 };      
1215         
1216 MODULE_DEVICE_TABLE(pci,trident_devices); 
1217
1218 static struct pci_driver tridentfb_pci_driver = {
1219         .name           = "tridentfb",
1220         .id_table       = trident_devices,
1221         .probe          = trident_pci_probe,
1222         .remove         = __devexit_p(trident_pci_remove)
1223 };
1224
1225 /*
1226  * Parse user specified options (`video=trident:')
1227  * example:
1228  *      video=trident:800x600,bpp=16,noaccel
1229  */
1230 #ifndef MODULE
1231 static int tridentfb_setup(char *options)
1232 {
1233         char * opt;
1234         if (!options || !*options)
1235                 return 0;
1236         while((opt = strsep(&options,",")) != NULL ) {
1237                 if (!*opt) continue;
1238                 if (!strncmp(opt,"noaccel",7))
1239                         noaccel = 1;
1240                 else if (!strncmp(opt,"fp",2))
1241                         displaytype = DISPLAY_FP;
1242                 else if (!strncmp(opt,"crt",3))
1243                         displaytype = DISPLAY_CRT;
1244                 else if (!strncmp(opt,"bpp=",4))
1245                         bpp = simple_strtoul(opt+4,NULL,0);
1246                 else if (!strncmp(opt,"center",6))
1247                         center = 1;
1248                 else if (!strncmp(opt,"stretch",7))
1249                         stretch = 1;
1250                 else if (!strncmp(opt,"memsize=",8))
1251                         memsize = simple_strtoul(opt+8,NULL,0);
1252                 else if (!strncmp(opt,"memdiff=",8))
1253                         memdiff = simple_strtoul(opt+8,NULL,0);
1254                 else if (!strncmp(opt,"nativex=",8))
1255                         nativex = simple_strtoul(opt+8,NULL,0);
1256                 else
1257                         mode = opt;
1258         }
1259         return 0;
1260 }
1261 #endif
1262
1263 static int __init tridentfb_init(void)
1264 {
1265 #ifndef MODULE
1266         char *option = NULL;
1267
1268         if (fb_get_options("tridentfb", &option))
1269                 return -ENODEV;
1270         tridentfb_setup(option);
1271 #endif
1272         output("Trident framebuffer %s initializing\n", VERSION);
1273         return pci_register_driver(&tridentfb_pci_driver);
1274 }
1275
1276 static void __exit tridentfb_exit(void)
1277 {
1278         pci_unregister_driver(&tridentfb_pci_driver);
1279 }
1280
1281 static struct fb_ops tridentfb_ops = {
1282         .owner  = THIS_MODULE,
1283         .fb_setcolreg = tridentfb_setcolreg,
1284         .fb_pan_display = tridentfb_pan_display,
1285         .fb_blank = tridentfb_blank,
1286         .fb_check_var = tridentfb_check_var,
1287         .fb_set_par = tridentfb_set_par,
1288         .fb_fillrect = tridentfb_fillrect,
1289         .fb_copyarea= tridentfb_copyarea,
1290         .fb_imageblit = cfb_imageblit,
1291         .fb_cursor = soft_cursor,
1292 };
1293
1294 module_init(tridentfb_init);
1295 module_exit(tridentfb_exit);
1296
1297 MODULE_AUTHOR("Jani Monoses <jani@iv.ro>");
1298 MODULE_DESCRIPTION("Framebuffer driver for Trident cards");
1299 MODULE_LICENSE("GPL");
1300