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OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4
[zen-stable.git] / drivers / video / tridentfb.c
blob34cf019bba44b64dc9c5a09ec4683efac8ff262c
1 /*
2 * Frame buffer driver for Trident TGUI, Blade and Image series
3 *
4 * Copyright 2001, 2002 - Jani Monoses <jani@iv.ro>
5 * Copyright 2009 Krzysztof Helt <krzysztof.h1@wp.pl>
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
11 * by Alan Hourihane the FreeVGA project
12 * Francesco Salvestrini <salvestrini@users.sf.net> XP support,
13 * code, suggestions
14 * TODO:
15 * timing value tweaking so it looks good on every monitor in every mode
16 */
17
18 #include <linux/module.h>
19 #include <linux/fb.h>
20 #include <linux/init.h>
21 #include <linux/pci.h>
22 #include <linux/slab.h>
23
24 #include <linux/delay.h>
25 #include <video/vga.h>
26 #include <video/trident.h>
27
28 struct tridentfb_par {
29 void __iomem *io_virt; /* iospace virtual memory address */
30 u32 pseudo_pal[16];
31 int chip_id;
32 int flatpanel;
33 void (*init_accel) (struct tridentfb_par *, int, int);
34 void (*wait_engine) (struct tridentfb_par *);
35 void (*fill_rect)
36 (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
37 void (*copy_rect)
38 (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
39 void (*image_blit)
40 (struct tridentfb_par *par, const char*,
41 u32, u32, u32, u32, u32, u32);
42 unsigned char eng_oper; /* engine operation... */
43 };
44
45 static struct fb_fix_screeninfo tridentfb_fix = {
46 .id = "Trident",
47 .type = FB_TYPE_PACKED_PIXELS,
48 .ypanstep = 1,
49 .visual = FB_VISUAL_PSEUDOCOLOR,
50 .accel = FB_ACCEL_NONE,
51 };
52
53 /* defaults which are normally overriden by user values */
54
55 /* video mode */
56 static char *mode_option __devinitdata = "640x480-8@60";
57 static int bpp __devinitdata = 8;
58
59 static int noaccel __devinitdata;
60
61 static int center;
62 static int stretch;
63
64 static int fp __devinitdata;
65 static int crt __devinitdata;
66
67 static int memsize __devinitdata;
68 static int memdiff __devinitdata;
69 static int nativex;
70
71 module_param(mode_option, charp, 0);
72 MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'");
73 module_param_named(mode, mode_option, charp, 0);
74 MODULE_PARM_DESC(mode, "Initial video mode e.g. '648x480-8@60' (deprecated)");
75 module_param(bpp, int, 0);
76 module_param(center, int, 0);
77 module_param(stretch, int, 0);
78 module_param(noaccel, int, 0);
79 module_param(memsize, int, 0);
80 module_param(memdiff, int, 0);
81 module_param(nativex, int, 0);
82 module_param(fp, int, 0);
83 MODULE_PARM_DESC(fp, "Define if flatpanel is connected");
84 module_param(crt, int, 0);
85 MODULE_PARM_DESC(crt, "Define if CRT is connected");
86
87 static inline int is_oldclock(int id)
88 {
89 return (id == TGUI9440) ||
90 (id == TGUI9660) ||
91 (id == CYBER9320);
92 }
93
94 static inline int is_oldprotect(int id)
95 {
96 return is_oldclock(id) ||
97 (id == PROVIDIA9685) ||
98 (id == CYBER9382) ||
99 (id == CYBER9385);
100 }
101
102 static inline int is_blade(int id)
103 {
104 return (id == BLADE3D) ||
105 (id == CYBERBLADEE4) ||
106 (id == CYBERBLADEi7) ||
107 (id == CYBERBLADEi7D) ||
108 (id == CYBERBLADEi1) ||
109 (id == CYBERBLADEi1D) ||
110 (id == CYBERBLADEAi1) ||
111 (id == CYBERBLADEAi1D);
112 }
113
114 static inline int is_xp(int id)
115 {
116 return (id == CYBERBLADEXPAi1) ||
117 (id == CYBERBLADEXPm8) ||
118 (id == CYBERBLADEXPm16);
119 }
120
121 static inline int is3Dchip(int id)
122 {
123 return is_blade(id) || is_xp(id) ||
124 (id == CYBER9397) || (id == CYBER9397DVD) ||
125 (id == CYBER9520) || (id == CYBER9525DVD) ||
126 (id == IMAGE975) || (id == IMAGE985);
127 }
128
129 static inline int iscyber(int id)
130 {
131 switch (id) {
132 case CYBER9388:
133 case CYBER9382:
134 case CYBER9385:
135 case CYBER9397:
136 case CYBER9397DVD:
137 case CYBER9520:
138 case CYBER9525DVD:
139 case CYBERBLADEE4:
140 case CYBERBLADEi7D:
141 case CYBERBLADEi1:
142 case CYBERBLADEi1D:
143 case CYBERBLADEAi1:
144 case CYBERBLADEAi1D:
145 case CYBERBLADEXPAi1:
146 return 1;
147
148 case CYBER9320:
149 case CYBERBLADEi7: /* VIA MPV4 integrated version */
150 default:
151 /* case CYBERBLDAEXPm8: Strange */
152 /* case CYBERBLDAEXPm16: Strange */
153 return 0;
154 }
155 }
156
157 static inline void t_outb(struct tridentfb_par *p, u8 val, u16 reg)
158 {
159 fb_writeb(val, p->io_virt + reg);
160 }
161
162 static inline u8 t_inb(struct tridentfb_par *p, u16 reg)
163 {
164 return fb_readb(p->io_virt + reg);
165 }
166
167 static inline void writemmr(struct tridentfb_par *par, u16 r, u32 v)
168 {
169 fb_writel(v, par->io_virt + r);
170 }
171
172 static inline u32 readmmr(struct tridentfb_par *par, u16 r)
173 {
174 return fb_readl(par->io_virt + r);
175 }
176
177 /*
178 * Blade specific acceleration.
179 */
180
181 #define point(x, y) ((y) << 16 | (x))
182
183 static void blade_init_accel(struct tridentfb_par *par, int pitch, int bpp)
184 {
185 int v1 = (pitch >> 3) << 20;
186 int tmp = bpp == 24 ? 2 : (bpp >> 4);
187 int v2 = v1 | (tmp << 29);
188
189 writemmr(par, 0x21C0, v2);
190 writemmr(par, 0x21C4, v2);
191 writemmr(par, 0x21B8, v2);
192 writemmr(par, 0x21BC, v2);
193 writemmr(par, 0x21D0, v1);
194 writemmr(par, 0x21D4, v1);
195 writemmr(par, 0x21C8, v1);
196 writemmr(par, 0x21CC, v1);
197 writemmr(par, 0x216C, 0);
198 }
199
200 static void blade_wait_engine(struct tridentfb_par *par)
201 {
202 while (readmmr(par, STATUS) & 0xFA800000)
203 cpu_relax();
204 }
205
206 static void blade_fill_rect(struct tridentfb_par *par,
207 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
208 {
209 writemmr(par, COLOR, c);
210 writemmr(par, ROP, rop ? ROP_X : ROP_S);
211 writemmr(par, CMD, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2);
212
213 writemmr(par, DST1, point(x, y));
214 writemmr(par, DST2, point(x + w - 1, y + h - 1));
215 }
216
217 static void blade_image_blit(struct tridentfb_par *par, const char *data,
218 u32 x, u32 y, u32 w, u32 h, u32 c, u32 b)
219 {
220 unsigned size = ((w + 31) >> 5) * h;
221
222 writemmr(par, COLOR, c);
223 writemmr(par, BGCOLOR, b);
224 writemmr(par, CMD, 0xa0000000 | 3 << 19);
225
226 writemmr(par, DST1, point(x, y));
227 writemmr(par, DST2, point(x + w - 1, y + h - 1));
228
229 memcpy(par->io_virt + 0x10000, data, 4 * size);
230 }
231
232 static void blade_copy_rect(struct tridentfb_par *par,
233 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
234 {
235 int direction = 2;
236 u32 s1 = point(x1, y1);
237 u32 s2 = point(x1 + w - 1, y1 + h - 1);
238 u32 d1 = point(x2, y2);
239 u32 d2 = point(x2 + w - 1, y2 + h - 1);
240
241 if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
242 direction = 0;
243
244 writemmr(par, ROP, ROP_S);
245 writemmr(par, CMD, 0xE0000000 | 1 << 19 | 1 << 4 | 1 << 2 | direction);
246
247 writemmr(par, SRC1, direction ? s2 : s1);
248 writemmr(par, SRC2, direction ? s1 : s2);
249 writemmr(par, DST1, direction ? d2 : d1);
250 writemmr(par, DST2, direction ? d1 : d2);
251 }
252
253 /*
254 * BladeXP specific acceleration functions
255 */
256
257 static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp)
258 {
259 unsigned char x = bpp == 24 ? 3 : (bpp >> 4);
260 int v1 = pitch << (bpp == 24 ? 20 : (18 + x));
261
262 switch (pitch << (bpp >> 3)) {
263 case 8192:
264 case 512:
265 x |= 0x00;
266 break;
267 case 1024:
268 x |= 0x04;
269 break;
270 case 2048:
271 x |= 0x08;
272 break;
273 case 4096:
274 x |= 0x0C;
275 break;
276 }
277
278 t_outb(par, x, 0x2125);
279
280 par->eng_oper = x | 0x40;
281
282 writemmr(par, 0x2154, v1);
283 writemmr(par, 0x2150, v1);
284 t_outb(par, 3, 0x2126);
285 }
286
287 static void xp_wait_engine(struct tridentfb_par *par)
288 {
289 int count = 0;
290 int timeout = 0;
291
292 while (t_inb(par, STATUS) & 0x80) {
293 count++;
294 if (count == 10000000) {
295 /* Timeout */
296 count = 9990000;
297 timeout++;
298 if (timeout == 8) {
299 /* Reset engine */
300 t_outb(par, 0x00, STATUS);
301 return;
302 }
303 }
304 cpu_relax();
305 }
306 }
307
308 static void xp_fill_rect(struct tridentfb_par *par,
309 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
310 {
311 writemmr(par, 0x2127, ROP_P);
312 writemmr(par, 0x2158, c);
313 writemmr(par, DRAWFL, 0x4000);
314 writemmr(par, OLDDIM, point(h, w));
315 writemmr(par, OLDDST, point(y, x));
316 t_outb(par, 0x01, OLDCMD);
317 t_outb(par, par->eng_oper, 0x2125);
318 }
319
320 static void xp_copy_rect(struct tridentfb_par *par,
321 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
322 {
323 u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
324 int direction = 0x0004;
325
326 if ((x1 < x2) && (y1 == y2)) {
327 direction |= 0x0200;
328 x1_tmp = x1 + w - 1;
329 x2_tmp = x2 + w - 1;
330 } else {
331 x1_tmp = x1;
332 x2_tmp = x2;
333 }
334
335 if (y1 < y2) {
336 direction |= 0x0100;
337 y1_tmp = y1 + h - 1;
338 y2_tmp = y2 + h - 1;
339 } else {
340 y1_tmp = y1;
341 y2_tmp = y2;
342 }
343
344 writemmr(par, DRAWFL, direction);
345 t_outb(par, ROP_S, 0x2127);
346 writemmr(par, OLDSRC, point(y1_tmp, x1_tmp));
347 writemmr(par, OLDDST, point(y2_tmp, x2_tmp));
348 writemmr(par, OLDDIM, point(h, w));
349 t_outb(par, 0x01, OLDCMD);
350 }
351
352 /*
353 * Image specific acceleration functions
354 */
355 static void image_init_accel(struct tridentfb_par *par, int pitch, int bpp)
356 {
357 int tmp = bpp == 24 ? 2: (bpp >> 4);
358
359 writemmr(par, 0x2120, 0xF0000000);
360 writemmr(par, 0x2120, 0x40000000 | tmp);
361 writemmr(par, 0x2120, 0x80000000);
362 writemmr(par, 0x2144, 0x00000000);
363 writemmr(par, 0x2148, 0x00000000);
364 writemmr(par, 0x2150, 0x00000000);
365 writemmr(par, 0x2154, 0x00000000);
366 writemmr(par, 0x2120, 0x60000000 | (pitch << 16) | pitch);
367 writemmr(par, 0x216C, 0x00000000);
368 writemmr(par, 0x2170, 0x00000000);
369 writemmr(par, 0x217C, 0x00000000);
370 writemmr(par, 0x2120, 0x10000000);
371 writemmr(par, 0x2130, (2047 << 16) | 2047);
372 }
373
374 static void image_wait_engine(struct tridentfb_par *par)
375 {
376 while (readmmr(par, 0x2164) & 0xF0000000)
377 cpu_relax();
378 }
379
380 static void image_fill_rect(struct tridentfb_par *par,
381 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
382 {
383 writemmr(par, 0x2120, 0x80000000);
384 writemmr(par, 0x2120, 0x90000000 | ROP_S);
385
386 writemmr(par, 0x2144, c);
387
388 writemmr(par, DST1, point(x, y));
389 writemmr(par, DST2, point(x + w - 1, y + h - 1));
390
391 writemmr(par, 0x2124, 0x80000000 | 3 << 22 | 1 << 10 | 1 << 9);
392 }
393
394 static void image_copy_rect(struct tridentfb_par *par,
395 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
396 {
397 int direction = 0x4;
398 u32 s1 = point(x1, y1);
399 u32 s2 = point(x1 + w - 1, y1 + h - 1);
400 u32 d1 = point(x2, y2);
401 u32 d2 = point(x2 + w - 1, y2 + h - 1);
402
403 if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
404 direction = 0;
405
406 writemmr(par, 0x2120, 0x80000000);
407 writemmr(par, 0x2120, 0x90000000 | ROP_S);
408
409 writemmr(par, SRC1, direction ? s2 : s1);
410 writemmr(par, SRC2, direction ? s1 : s2);
411 writemmr(par, DST1, direction ? d2 : d1);
412 writemmr(par, DST2, direction ? d1 : d2);
413 writemmr(par, 0x2124,
414 0x80000000 | 1 << 22 | 1 << 10 | 1 << 7 | direction);
415 }
416
417 /*
418 * TGUI 9440/96XX acceleration
419 */
420
421 static void tgui_init_accel(struct tridentfb_par *par, int pitch, int bpp)
422 {
423 unsigned char x = bpp == 24 ? 3 : (bpp >> 4);
424
425 /* disable clipping */
426 writemmr(par, 0x2148, 0);
427 writemmr(par, 0x214C, point(4095, 2047));
428
429 switch ((pitch * bpp) / 8) {
430 case 8192:
431 case 512:
432 x |= 0x00;
433 break;
434 case 1024:
435 x |= 0x04;
436 break;
437 case 2048:
438 x |= 0x08;
439 break;
440 case 4096:
441 x |= 0x0C;
442 break;
443 }
444
445 fb_writew(x, par->io_virt + 0x2122);
446 }
447
448 static void tgui_fill_rect(struct tridentfb_par *par,
449 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
450 {
451 t_outb(par, ROP_P, 0x2127);
452 writemmr(par, OLDCLR, c);
453 writemmr(par, DRAWFL, 0x4020);
454 writemmr(par, OLDDIM, point(w - 1, h - 1));
455 writemmr(par, OLDDST, point(x, y));
456 t_outb(par, 1, OLDCMD);
457 }
458
459 static void tgui_copy_rect(struct tridentfb_par *par,
460 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
461 {
462 int flags = 0;
463 u16 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
464
465 if ((x1 < x2) && (y1 == y2)) {
466 flags |= 0x0200;
467 x1_tmp = x1 + w - 1;
468 x2_tmp = x2 + w - 1;
469 } else {
470 x1_tmp = x1;
471 x2_tmp = x2;
472 }
473
474 if (y1 < y2) {
475 flags |= 0x0100;
476 y1_tmp = y1 + h - 1;
477 y2_tmp = y2 + h - 1;
478 } else {
479 y1_tmp = y1;
480 y2_tmp = y2;
481 }
482
483 writemmr(par, DRAWFL, 0x4 | flags);
484 t_outb(par, ROP_S, 0x2127);
485 writemmr(par, OLDSRC, point(x1_tmp, y1_tmp));
486 writemmr(par, OLDDST, point(x2_tmp, y2_tmp));
487 writemmr(par, OLDDIM, point(w - 1, h - 1));
488 t_outb(par, 1, OLDCMD);
489 }
490
491 /*
492 * Accel functions called by the upper layers
493 */
494 static void tridentfb_fillrect(struct fb_info *info,
495 const struct fb_fillrect *fr)
496 {
497 struct tridentfb_par *par = info->par;
498 int col;
499
500 if (info->flags & FBINFO_HWACCEL_DISABLED) {
501 cfb_fillrect(info, fr);
502 return;
503 }
504 if (info->var.bits_per_pixel == 8) {
505 col = fr->color;
506 col |= col << 8;
507 col |= col << 16;
508 } else
509 col = ((u32 *)(info->pseudo_palette))[fr->color];
510
511 par->wait_engine(par);
512 par->fill_rect(par, fr->dx, fr->dy, fr->width,
513 fr->height, col, fr->rop);
514 }
515
516 static void tridentfb_imageblit(struct fb_info *info,
517 const struct fb_image *img)
518 {
519 struct tridentfb_par *par = info->par;
520 int col, bgcol;
521
522 if ((info->flags & FBINFO_HWACCEL_DISABLED) || img->depth != 1) {
523 cfb_imageblit(info, img);
524 return;
525 }
526 if (info->var.bits_per_pixel == 8) {
527 col = img->fg_color;
528 col |= col << 8;
529 col |= col << 16;
530 bgcol = img->bg_color;
531 bgcol |= bgcol << 8;
532 bgcol |= bgcol << 16;
533 } else {
534 col = ((u32 *)(info->pseudo_palette))[img->fg_color];
535 bgcol = ((u32 *)(info->pseudo_palette))[img->bg_color];
536 }
537
538 par->wait_engine(par);
539 if (par->image_blit)
540 par->image_blit(par, img->data, img->dx, img->dy,
541 img->width, img->height, col, bgcol);
542 else
543 cfb_imageblit(info, img);
544 }
545
546 static void tridentfb_copyarea(struct fb_info *info,
547 const struct fb_copyarea *ca)
548 {
549 struct tridentfb_par *par = info->par;
550
551 if (info->flags & FBINFO_HWACCEL_DISABLED) {
552 cfb_copyarea(info, ca);
553 return;
554 }
555 par->wait_engine(par);
556 par->copy_rect(par, ca->sx, ca->sy, ca->dx, ca->dy,
557 ca->width, ca->height);
558 }
559
560 static int tridentfb_sync(struct fb_info *info)
561 {
562 struct tridentfb_par *par = info->par;
563
564 if (!(info->flags & FBINFO_HWACCEL_DISABLED))
565 par->wait_engine(par);
566 return 0;
567 }
568
569 /*
570 * Hardware access functions
571 */
572
573 static inline unsigned char read3X4(struct tridentfb_par *par, int reg)
574 {
575 return vga_mm_rcrt(par->io_virt, reg);
576 }
577
578 static inline void write3X4(struct tridentfb_par *par, int reg,
579 unsigned char val)
580 {
581 vga_mm_wcrt(par->io_virt, reg, val);
582 }
583
584 static inline unsigned char read3CE(struct tridentfb_par *par,
585 unsigned char reg)
586 {
587 return vga_mm_rgfx(par->io_virt, reg);
588 }
589
590 static inline void writeAttr(struct tridentfb_par *par, int reg,
591 unsigned char val)
592 {
593 fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */
594 vga_mm_wattr(par->io_virt, reg, val);
595 }
596
597 static inline void write3CE(struct tridentfb_par *par, int reg,
598 unsigned char val)
599 {
600 vga_mm_wgfx(par->io_virt, reg, val);
601 }
602
603 static void enable_mmio(struct tridentfb_par *par)
604 {
605 /* Goto New Mode */
606 vga_io_rseq(0x0B);
607
608 /* Unprotect registers */
609 vga_io_wseq(NewMode1, 0x80);
610 if (!is_oldprotect(par->chip_id))
611 vga_io_wseq(Protection, 0x92);
612
613 /* Enable MMIO */
614 outb(PCIReg, 0x3D4);
615 outb(inb(0x3D5) | 0x01, 0x3D5);
616 }
617
618 static void disable_mmio(struct tridentfb_par *par)
619 {
620 /* Goto New Mode */
621 vga_mm_rseq(par->io_virt, 0x0B);
622
623 /* Unprotect registers */
624 vga_mm_wseq(par->io_virt, NewMode1, 0x80);
625 if (!is_oldprotect(par->chip_id))
626 vga_mm_wseq(par->io_virt, Protection, 0x92);
627
628 /* Disable MMIO */
629 t_outb(par, PCIReg, 0x3D4);
630 t_outb(par, t_inb(par, 0x3D5) & ~0x01, 0x3D5);
631 }
632
633 static inline void crtc_unlock(struct tridentfb_par *par)
634 {
635 write3X4(par, VGA_CRTC_V_SYNC_END,
636 read3X4(par, VGA_CRTC_V_SYNC_END) & 0x7F);
637 }
638
639 /* Return flat panel's maximum x resolution */
640 static int __devinit get_nativex(struct tridentfb_par *par)
641 {
642 int x, y, tmp;
643
644 if (nativex)
645 return nativex;
646
647 tmp = (read3CE(par, VertStretch) >> 4) & 3;
648
649 switch (tmp) {
650 case 0:
651 x = 1280; y = 1024;
652 break;
653 case 2:
654 x = 1024; y = 768;
655 break;
656 case 3:
657 x = 800; y = 600;
658 break;
659 case 4:
660 x = 1400; y = 1050;
661 break;
662 case 1:
663 default:
664 x = 640; y = 480;
665 break;
666 }
667
668 output("%dx%d flat panel found\n", x, y);
669 return x;
670 }
671
672 /* Set pitch */
673 static inline void set_lwidth(struct tridentfb_par *par, int width)
674 {
675 write3X4(par, VGA_CRTC_OFFSET, width & 0xFF);
676 write3X4(par, AddColReg,
677 (read3X4(par, AddColReg) & 0xCF) | ((width & 0x300) >> 4));
678 }
679
680 /* For resolutions smaller than FP resolution stretch */
681 static void screen_stretch(struct tridentfb_par *par)
682 {
683 if (par->chip_id != CYBERBLADEXPAi1)
684 write3CE(par, BiosReg, 0);
685 else
686 write3CE(par, BiosReg, 8);
687 write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 1);
688 write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 1);
689 }
690
691 /* For resolutions smaller than FP resolution center */
692 static inline void screen_center(struct tridentfb_par *par)
693 {
694 write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 0x80);
695 write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 0x80);
696 }
697
698 /* Address of first shown pixel in display memory */
699 static void set_screen_start(struct tridentfb_par *par, int base)
700 {
701 u8 tmp;
702 write3X4(par, VGA_CRTC_START_LO, base & 0xFF);
703 write3X4(par, VGA_CRTC_START_HI, (base & 0xFF00) >> 8);
704 tmp = read3X4(par, CRTCModuleTest) & 0xDF;
705 write3X4(par, CRTCModuleTest, tmp | ((base & 0x10000) >> 11));
706 tmp = read3X4(par, CRTHiOrd) & 0xF8;
707 write3X4(par, CRTHiOrd, tmp | ((base & 0xE0000) >> 17));
708 }
709
710 /* Set dotclock frequency */
711 static void set_vclk(struct tridentfb_par *par, unsigned long freq)
712 {
713 int m, n, k;
714 unsigned long fi, d, di;
715 unsigned char best_m = 0, best_n = 0, best_k = 0;
716 unsigned char hi, lo;
717 unsigned char shift = !is_oldclock(par->chip_id) ? 2 : 1;
718
719 d = 20000;
720 for (k = shift; k >= 0; k--)
721 for (m = 1; m < 32; m++) {
722 n = ((m + 2) << shift) - 8;
723 for (n = (n < 0 ? 0 : n); n < 122; n++) {
724 fi = ((14318l * (n + 8)) / (m + 2)) >> k;
725 di = abs(fi - freq);
726 if (di < d || (di == d && k == best_k)) {
727 d = di;
728 best_n = n;
729 best_m = m;
730 best_k = k;
731 }
732 if (fi > freq)
733 break;
734 }
735 }
736
737 if (is_oldclock(par->chip_id)) {
738 lo = best_n | (best_m << 7);
739 hi = (best_m >> 1) | (best_k << 4);
740 } else {
741 lo = best_n;
742 hi = best_m | (best_k << 6);
743 }
744
745 if (is3Dchip(par->chip_id)) {
746 vga_mm_wseq(par->io_virt, ClockHigh, hi);
747 vga_mm_wseq(par->io_virt, ClockLow, lo);
748 } else {
749 t_outb(par, lo, 0x43C8);
750 t_outb(par, hi, 0x43C9);
751 }
752 debug("VCLK = %X %X\n", hi, lo);
753 }
754
755 /* Set number of lines for flat panels*/
756 static void set_number_of_lines(struct tridentfb_par *par, int lines)
757 {
758 int tmp = read3CE(par, CyberEnhance) & 0x8F;
759 if (lines > 1024)
760 tmp |= 0x50;
761 else if (lines > 768)
762 tmp |= 0x30;
763 else if (lines > 600)
764 tmp |= 0x20;
765 else if (lines > 480)
766 tmp |= 0x10;
767 write3CE(par, CyberEnhance, tmp);
768 }
769
770 /*
771 * If we see that FP is active we assume we have one.
772 * Otherwise we have a CRT display. User can override.
773 */
774 static int __devinit is_flatpanel(struct tridentfb_par *par)
775 {
776 if (fp)
777 return 1;
778 if (crt || !iscyber(par->chip_id))
779 return 0;
780 return (read3CE(par, FPConfig) & 0x10) ? 1 : 0;
781 }
782
783 /* Try detecting the video memory size */
784 static unsigned int __devinit get_memsize(struct tridentfb_par *par)
785 {
786 unsigned char tmp, tmp2;
787 unsigned int k;
788
789 /* If memory size provided by user */
790 if (memsize)
791 k = memsize * Kb;
792 else
793 switch (par->chip_id) {
794 case CYBER9525DVD:
795 k = 2560 * Kb;
796 break;
797 default:
798 tmp = read3X4(par, SPR) & 0x0F;
799 switch (tmp) {
800
801 case 0x01:
802 k = 512 * Kb;
803 break;
804 case 0x02:
805 k = 6 * Mb; /* XP */
806 break;
807 case 0x03:
808 k = 1 * Mb;
809 break;
810 case 0x04:
811 k = 8 * Mb;
812 break;
813 case 0x06:
814 k = 10 * Mb; /* XP */
815 break;
816 case 0x07:
817 k = 2 * Mb;
818 break;
819 case 0x08:
820 k = 12 * Mb; /* XP */
821 break;
822 case 0x0A:
823 k = 14 * Mb; /* XP */
824 break;
825 case 0x0C:
826 k = 16 * Mb; /* XP */
827 break;
828 case 0x0E: /* XP */
829
830 tmp2 = vga_mm_rseq(par->io_virt, 0xC1);
831 switch (tmp2) {
832 case 0x00:
833 k = 20 * Mb;
834 break;
835 case 0x01:
836 k = 24 * Mb;
837 break;
838 case 0x10:
839 k = 28 * Mb;
840 break;
841 case 0x11:
842 k = 32 * Mb;
843 break;
844 default:
845 k = 1 * Mb;
846 break;
847 }
848 break;
849
850 case 0x0F:
851 k = 4 * Mb;
852 break;
853 default:
854 k = 1 * Mb;
855 break;
856 }
857 }
858
859 k -= memdiff * Kb;
860 output("framebuffer size = %d Kb\n", k / Kb);
861 return k;
862 }
863
864 /* See if we can handle the video mode described in var */
865 static int tridentfb_check_var(struct fb_var_screeninfo *var,
866 struct fb_info *info)
867 {
868 struct tridentfb_par *par = info->par;
869 int bpp = var->bits_per_pixel;
870 int line_length;
871 int ramdac = 230000; /* 230MHz for most 3D chips */
872 debug("enter\n");
873
874 /* check color depth */
875 if (bpp == 24)
876 bpp = var->bits_per_pixel = 32;
877 if (bpp != 8 && bpp != 16 && bpp != 32)
878 return -EINVAL;
879 if (par->chip_id == TGUI9440 && bpp == 32)
880 return -EINVAL;
881 /* check whether resolution fits on panel and in memory */
882 if (par->flatpanel && nativex && var->xres > nativex)
883 return -EINVAL;
884 /* various resolution checks */
885 var->xres = (var->xres + 7) & ~0x7;
886 if (var->xres > var->xres_virtual)
887 var->xres_virtual = var->xres;
888 if (var->yres > var->yres_virtual)
889 var->yres_virtual = var->yres;
890 if (var->xres_virtual > 4095 || var->yres > 2048)
891 return -EINVAL;
892 /* prevent from position overflow for acceleration */
893 if (var->yres_virtual > 0xffff)
894 return -EINVAL;
895 line_length = var->xres_virtual * bpp / 8;
896
897 if (!is3Dchip(par->chip_id) &&
898 !(info->flags & FBINFO_HWACCEL_DISABLED)) {
899 /* acceleration requires line length to be power of 2 */
900 if (line_length <= 512)
901 var->xres_virtual = 512 * 8 / bpp;
902 else if (line_length <= 1024)
903 var->xres_virtual = 1024 * 8 / bpp;
904 else if (line_length <= 2048)
905 var->xres_virtual = 2048 * 8 / bpp;
906 else if (line_length <= 4096)
907 var->xres_virtual = 4096 * 8 / bpp;
908 else if (line_length <= 8192)
909 var->xres_virtual = 8192 * 8 / bpp;
910 else
911 return -EINVAL;
912
913 line_length = var->xres_virtual * bpp / 8;
914 }
915
916 /* datasheet specifies how to set panning only up to 4 MB */
917 if (line_length * (var->yres_virtual - var->yres) > (4 << 20))
918 var->yres_virtual = ((4 << 20) / line_length) + var->yres;
919
920 if (line_length * var->yres_virtual > info->fix.smem_len)
921 return -EINVAL;
922
923 switch (bpp) {
924 case 8:
925 var->red.offset = 0;
926 var->red.length = 8;
927 var->green = var->red;
928 var->blue = var->red;
929 break;
930 case 16:
931 var->red.offset = 11;
932 var->green.offset = 5;
933 var->blue.offset = 0;
934 var->red.length = 5;
935 var->green.length = 6;
936 var->blue.length = 5;
937 break;
938 case 32:
939 var->red.offset = 16;
940 var->green.offset = 8;
941 var->blue.offset = 0;
942 var->red.length = 8;
943 var->green.length = 8;
944 var->blue.length = 8;
945 break;
946 default:
947 return -EINVAL;
948 }
949
950 if (is_xp(par->chip_id))
951 ramdac = 350000;
952
953 switch (par->chip_id) {
954 case TGUI9440:
955 ramdac = (bpp >= 16) ? 45000 : 90000;
956 break;
957 case CYBER9320:
958 case TGUI9660:
959 ramdac = 135000;
960 break;
961 case PROVIDIA9685:
962 case CYBER9388:
963 case CYBER9382:
964 case CYBER9385:
965 ramdac = 170000;
966 break;
967 }
968
969 /* The clock is doubled for 32 bpp */
970 if (bpp == 32)
971 ramdac /= 2;
972
973 if (PICOS2KHZ(var->pixclock) > ramdac)
974 return -EINVAL;
975
976 debug("exit\n");
977
978 return 0;
979
980 }
981
982 /* Pan the display */
983 static int tridentfb_pan_display(struct fb_var_screeninfo *var,
984 struct fb_info *info)
985 {
986 struct tridentfb_par *par = info->par;
987 unsigned int offset;
988
989 debug("enter\n");
990 offset = (var->xoffset + (var->yoffset * info->var.xres_virtual))
991 * info->var.bits_per_pixel / 32;
992 set_screen_start(par, offset);
993 debug("exit\n");
994 return 0;
995 }
996
997 static inline void shadowmode_on(struct tridentfb_par *par)
998 {
999 write3CE(par, CyberControl, read3CE(par, CyberControl) | 0x81);
1000 }
1001
1002 static inline void shadowmode_off(struct tridentfb_par *par)
1003 {
1004 write3CE(par, CyberControl, read3CE(par, CyberControl) & 0x7E);
1005 }
1006
1007 /* Set the hardware to the requested video mode */
1008 static int tridentfb_set_par(struct fb_info *info)
1009 {
1010 struct tridentfb_par *par = info->par;
1011 u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend;
1012 u32 vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend;
1013 struct fb_var_screeninfo *var = &info->var;
1014 int bpp = var->bits_per_pixel;
1015 unsigned char tmp;
1016 unsigned long vclk;
1017
1018 debug("enter\n");
1019 hdispend = var->xres / 8 - 1;
1020 hsyncstart = (var->xres + var->right_margin) / 8;
1021 hsyncend = (var->xres + var->right_margin + var->hsync_len) / 8;
1022 htotal = (var->xres + var->left_margin + var->right_margin +
1023 var->hsync_len) / 8 - 5;
1024 hblankstart = hdispend + 1;
1025 hblankend = htotal + 3;
1026
1027 vdispend = var->yres - 1;
1028 vsyncstart = var->yres + var->lower_margin;
1029 vsyncend = vsyncstart + var->vsync_len;
1030 vtotal = var->upper_margin + vsyncend - 2;
1031 vblankstart = vdispend + 1;
1032 vblankend = vtotal;
1033
1034 if (info->var.vmode & FB_VMODE_INTERLACED) {
1035 vtotal /= 2;
1036 vdispend /= 2;
1037 vsyncstart /= 2;
1038 vsyncend /= 2;
1039 vblankstart /= 2;
1040 vblankend /= 2;
1041 }
1042
1043 enable_mmio(par);
1044 crtc_unlock(par);
1045 write3CE(par, CyberControl, 8);
1046 tmp = 0xEB;
1047 if (var->sync & FB_SYNC_HOR_HIGH_ACT)
1048 tmp &= ~0x40;
1049 if (var->sync & FB_SYNC_VERT_HIGH_ACT)
1050 tmp &= ~0x80;
1051
1052 if (par->flatpanel && var->xres < nativex) {
1053 /*
1054 * on flat panels with native size larger
1055 * than requested resolution decide whether
1056 * we stretch or center
1057 */
1058 t_outb(par, tmp | 0xC0, VGA_MIS_W);
1059
1060 shadowmode_on(par);
1061
1062 if (center)
1063 screen_center(par);
1064 else if (stretch)
1065 screen_stretch(par);
1066
1067 } else {
1068 t_outb(par, tmp, VGA_MIS_W);
1069 write3CE(par, CyberControl, 8);
1070 }
1071
1072 /* vertical timing values */
1073 write3X4(par, VGA_CRTC_V_TOTAL, vtotal & 0xFF);
1074 write3X4(par, VGA_CRTC_V_DISP_END, vdispend & 0xFF);
1075 write3X4(par, VGA_CRTC_V_SYNC_START, vsyncstart & 0xFF);
1076 write3X4(par, VGA_CRTC_V_SYNC_END, (vsyncend & 0x0F));
1077 write3X4(par, VGA_CRTC_V_BLANK_START, vblankstart & 0xFF);
1078 write3X4(par, VGA_CRTC_V_BLANK_END, vblankend & 0xFF);
1079
1080 /* horizontal timing values */
1081 write3X4(par, VGA_CRTC_H_TOTAL, htotal & 0xFF);
1082 write3X4(par, VGA_CRTC_H_DISP, hdispend & 0xFF);
1083 write3X4(par, VGA_CRTC_H_SYNC_START, hsyncstart & 0xFF);
1084 write3X4(par, VGA_CRTC_H_SYNC_END,
1085 (hsyncend & 0x1F) | ((hblankend & 0x20) << 2));
1086 write3X4(par, VGA_CRTC_H_BLANK_START, hblankstart & 0xFF);
1087 write3X4(par, VGA_CRTC_H_BLANK_END, hblankend & 0x1F);
1088
1089 /* higher bits of vertical timing values */
1090 tmp = 0x10;
1091 if (vtotal & 0x100) tmp |= 0x01;
1092 if (vdispend & 0x100) tmp |= 0x02;
1093 if (vsyncstart & 0x100) tmp |= 0x04;
1094 if (vblankstart & 0x100) tmp |= 0x08;
1095
1096 if (vtotal & 0x200) tmp |= 0x20;
1097 if (vdispend & 0x200) tmp |= 0x40;
1098 if (vsyncstart & 0x200) tmp |= 0x80;
1099 write3X4(par, VGA_CRTC_OVERFLOW, tmp);
1100
1101 tmp = read3X4(par, CRTHiOrd) & 0x07;
1102 tmp |= 0x08; /* line compare bit 10 */
1103 if (vtotal & 0x400) tmp |= 0x80;
1104 if (vblankstart & 0x400) tmp |= 0x40;
1105 if (vsyncstart & 0x400) tmp |= 0x20;
1106 if (vdispend & 0x400) tmp |= 0x10;
1107 write3X4(par, CRTHiOrd, tmp);
1108
1109 tmp = (htotal >> 8) & 0x01;
1110 tmp |= (hdispend >> 7) & 0x02;
1111 tmp |= (hsyncstart >> 5) & 0x08;
1112 tmp |= (hblankstart >> 4) & 0x10;
1113 write3X4(par, HorizOverflow, tmp);
1114
1115 tmp = 0x40;
1116 if (vblankstart & 0x200) tmp |= 0x20;
1117 //FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80; /* double scan for 200 line modes */
1118 write3X4(par, VGA_CRTC_MAX_SCAN, tmp);
1119
1120 write3X4(par, VGA_CRTC_LINE_COMPARE, 0xFF);
1121 write3X4(par, VGA_CRTC_PRESET_ROW, 0);
1122 write3X4(par, VGA_CRTC_MODE, 0xC3);
1123
1124 write3X4(par, LinearAddReg, 0x20); /* enable linear addressing */
1125
1126 tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80;
1127 /* enable access extended memory */
1128 write3X4(par, CRTCModuleTest, tmp);
1129 tmp = read3CE(par, MiscIntContReg) & ~0x4;
1130 if (info->var.vmode & FB_VMODE_INTERLACED)
1131 tmp |= 0x4;
1132 write3CE(par, MiscIntContReg, tmp);
1133
1134 /* enable GE for text acceleration */
1135 write3X4(par, GraphEngReg, 0x80);
1136
1137 switch (bpp) {
1138 case 8:
1139 tmp = 0x00;
1140 break;
1141 case 16:
1142 tmp = 0x05;
1143 break;
1144 case 24:
1145 tmp = 0x29;
1146 break;
1147 case 32:
1148 tmp = 0x09;
1149 break;
1150 }
1151
1152 write3X4(par, PixelBusReg, tmp);
1153
1154 tmp = read3X4(par, DRAMControl);
1155 if (!is_oldprotect(par->chip_id))
1156 tmp |= 0x10;
1157 if (iscyber(par->chip_id))
1158 tmp |= 0x20;
1159 write3X4(par, DRAMControl, tmp); /* both IO, linear enable */
1160
1161 write3X4(par, InterfaceSel, read3X4(par, InterfaceSel) | 0x40);
1162 if (!is_xp(par->chip_id))
1163 write3X4(par, Performance, read3X4(par, Performance) | 0x10);
1164 /* MMIO & PCI read and write burst enable */
1165 if (par->chip_id != TGUI9440 && par->chip_id != IMAGE975)
1166 write3X4(par, PCIReg, read3X4(par, PCIReg) | 0x06);
1167
1168 vga_mm_wseq(par->io_virt, 0, 3);
1169 vga_mm_wseq(par->io_virt, 1, 1); /* set char clock 8 dots wide */
1170 /* enable 4 maps because needed in chain4 mode */
1171 vga_mm_wseq(par->io_virt, 2, 0x0F);
1172 vga_mm_wseq(par->io_virt, 3, 0);
1173 vga_mm_wseq(par->io_virt, 4, 0x0E); /* memory mode enable bitmaps ?? */
1174
1175 /* convert from picoseconds to kHz */
1176 vclk = PICOS2KHZ(info->var.pixclock);
1177
1178 /* divide clock by 2 if 32bpp chain4 mode display and CPU path */
1179 tmp = read3CE(par, MiscExtFunc) & 0xF0;
1180 if (bpp == 32 || (par->chip_id == TGUI9440 && bpp == 16)) {
1181 tmp |= 8;
1182 vclk *= 2;
1183 }
1184 set_vclk(par, vclk);
1185 write3CE(par, MiscExtFunc, tmp | 0x12);
1186 write3CE(par, 0x5, 0x40); /* no CGA compat, allow 256 col */
1187 write3CE(par, 0x6, 0x05); /* graphics mode */
1188 write3CE(par, 0x7, 0x0F); /* planes? */
1189
1190 /* graphics mode and support 256 color modes */
1191 writeAttr(par, 0x10, 0x41);
1192 writeAttr(par, 0x12, 0x0F); /* planes */
1193 writeAttr(par, 0x13, 0); /* horizontal pel panning */
1194
1195 /* colors */
1196 for (tmp = 0; tmp < 0x10; tmp++)
1197 writeAttr(par, tmp, tmp);
1198 fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */
1199 t_outb(par, 0x20, VGA_ATT_W); /* enable attr */
1200
1201 switch (bpp) {
1202 case 8:
1203 tmp = 0;
1204 break;
1205 case 16:
1206 tmp = 0x30;
1207 break;
1208 case 24:
1209 case 32:
1210 tmp = 0xD0;
1211 break;
1212 }
1213
1214 t_inb(par, VGA_PEL_IW);
1215 t_inb(par, VGA_PEL_MSK);
1216 t_inb(par, VGA_PEL_MSK);
1217 t_inb(par, VGA_PEL_MSK);
1218 t_inb(par, VGA_PEL_MSK);
1219 t_outb(par, tmp, VGA_PEL_MSK);
1220 t_inb(par, VGA_PEL_IW);
1221
1222 if (par->flatpanel)
1223 set_number_of_lines(par, info->var.yres);
1224 info->fix.line_length = info->var.xres_virtual * bpp / 8;
1225 set_lwidth(par, info->fix.line_length / 8);
1226
1227 if (!(info->flags & FBINFO_HWACCEL_DISABLED))
1228 par->init_accel(par, info->var.xres_virtual, bpp);
1229
1230 info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
1231 info->cmap.len = (bpp == 8) ? 256 : 16;
1232 debug("exit\n");
1233 return 0;
1234 }
1235
1236 /* Set one color register */
1237 static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1238 unsigned blue, unsigned transp,
1239 struct fb_info *info)
1240 {
1241 int bpp = info->var.bits_per_pixel;
1242 struct tridentfb_par *par = info->par;
1243
1244 if (regno >= info->cmap.len)
1245 return 1;
1246
1247 if (bpp == 8) {
1248 t_outb(par, 0xFF, VGA_PEL_MSK);
1249 t_outb(par, regno, VGA_PEL_IW);
1250
1251 t_outb(par, red >> 10, VGA_PEL_D);
1252 t_outb(par, green >> 10, VGA_PEL_D);
1253 t_outb(par, blue >> 10, VGA_PEL_D);
1254
1255 } else if (regno < 16) {
1256 if (bpp == 16) { /* RGB 565 */
1257 u32 col;
1258
1259 col = (red & 0xF800) | ((green & 0xFC00) >> 5) |
1260 ((blue & 0xF800) >> 11);
1261 col |= col << 16;
1262 ((u32 *)(info->pseudo_palette))[regno] = col;
1263 } else if (bpp == 32) /* ARGB 8888 */
1264 ((u32 *)info->pseudo_palette)[regno] =
1265 ((transp & 0xFF00) << 16) |
1266 ((red & 0xFF00) << 8) |
1267 ((green & 0xFF00)) |
1268 ((blue & 0xFF00) >> 8);
1269 }
1270
1271 return 0;
1272 }
1273
1274 /* Try blanking the screen. For flat panels it does nothing */
1275 static int tridentfb_blank(int blank_mode, struct fb_info *info)
1276 {
1277 unsigned char PMCont, DPMSCont;
1278 struct tridentfb_par *par = info->par;
1279
1280 debug("enter\n");
1281 if (par->flatpanel)
1282 return 0;
1283 t_outb(par, 0x04, 0x83C8); /* Read DPMS Control */
1284 PMCont = t_inb(par, 0x83C6) & 0xFC;
1285 DPMSCont = read3CE(par, PowerStatus) & 0xFC;
1286 switch (blank_mode) {
1287 case FB_BLANK_UNBLANK:
1288 /* Screen: On, HSync: On, VSync: On */
1289 case FB_BLANK_NORMAL:
1290 /* Screen: Off, HSync: On, VSync: On */
1291 PMCont |= 0x03;
1292 DPMSCont |= 0x00;
1293 break;
1294 case FB_BLANK_HSYNC_SUSPEND:
1295 /* Screen: Off, HSync: Off, VSync: On */
1296 PMCont |= 0x02;
1297 DPMSCont |= 0x01;
1298 break;
1299 case FB_BLANK_VSYNC_SUSPEND:
1300 /* Screen: Off, HSync: On, VSync: Off */
1301 PMCont |= 0x02;
1302 DPMSCont |= 0x02;
1303 break;
1304 case FB_BLANK_POWERDOWN:
1305 /* Screen: Off, HSync: Off, VSync: Off */
1306 PMCont |= 0x00;
1307 DPMSCont |= 0x03;
1308 break;
1309 }
1310
1311 write3CE(par, PowerStatus, DPMSCont);
1312 t_outb(par, 4, 0x83C8);
1313 t_outb(par, PMCont, 0x83C6);
1314
1315 debug("exit\n");
1316
1317 /* let fbcon do a softblank for us */
1318 return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0;
1319 }
1320
1321 static struct fb_ops tridentfb_ops = {
1322 .owner = THIS_MODULE,
1323 .fb_setcolreg = tridentfb_setcolreg,
1324 .fb_pan_display = tridentfb_pan_display,
1325 .fb_blank = tridentfb_blank,
1326 .fb_check_var = tridentfb_check_var,
1327 .fb_set_par = tridentfb_set_par,
1328 .fb_fillrect = tridentfb_fillrect,
1329 .fb_copyarea = tridentfb_copyarea,
1330 .fb_imageblit = tridentfb_imageblit,
1331 .fb_sync = tridentfb_sync,
1332 };
1333
1334 static int __devinit trident_pci_probe(struct pci_dev *dev,
1335 const struct pci_device_id *id)
1336 {
1337 int err;
1338 unsigned char revision;
1339 struct fb_info *info;
1340 struct tridentfb_par *default_par;
1341 int chip3D;
1342 int chip_id;
1343
1344 err = pci_enable_device(dev);
1345 if (err)
1346 return err;
1347
1348 info = framebuffer_alloc(sizeof(struct tridentfb_par), &dev->dev);
1349 if (!info)
1350 return -ENOMEM;
1351 default_par = info->par;
1352
1353 chip_id = id->device;
1354
1355 /* If PCI id is 0x9660 then further detect chip type */
1356
1357 if (chip_id == TGUI9660) {
1358 revision = vga_io_rseq(RevisionID);
1359
1360 switch (revision) {
1361 case 0x21:
1362 chip_id = PROVIDIA9685;
1363 break;
1364 case 0x22:
1365 case 0x23:
1366 chip_id = CYBER9397;
1367 break;
1368 case 0x2A:
1369 chip_id = CYBER9397DVD;
1370 break;
1371 case 0x30:
1372 case 0x33:
1373 case 0x34:
1374 case 0x35:
1375 case 0x38:
1376 case 0x3A:
1377 case 0xB3:
1378 chip_id = CYBER9385;
1379 break;
1380 case 0x40 ... 0x43:
1381 chip_id = CYBER9382;
1382 break;
1383 case 0x4A:
1384 chip_id = CYBER9388;
1385 break;
1386 default:
1387 break;
1388 }
1389 }
1390
1391 chip3D = is3Dchip(chip_id);
1392
1393 if (is_xp(chip_id)) {
1394 default_par->init_accel = xp_init_accel;
1395 default_par->wait_engine = xp_wait_engine;
1396 default_par->fill_rect = xp_fill_rect;
1397 default_par->copy_rect = xp_copy_rect;
1398 tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADEXP;
1399 } else if (is_blade(chip_id)) {
1400 default_par->init_accel = blade_init_accel;
1401 default_par->wait_engine = blade_wait_engine;
1402 default_par->fill_rect = blade_fill_rect;
1403 default_par->copy_rect = blade_copy_rect;
1404 default_par->image_blit = blade_image_blit;
1405 tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADE3D;
1406 } else if (chip3D) { /* 3DImage family left */
1407 default_par->init_accel = image_init_accel;
1408 default_par->wait_engine = image_wait_engine;
1409 default_par->fill_rect = image_fill_rect;
1410 default_par->copy_rect = image_copy_rect;
1411 tridentfb_fix.accel = FB_ACCEL_TRIDENT_3DIMAGE;
1412 } else { /* TGUI 9440/96XX family */
1413 default_par->init_accel = tgui_init_accel;
1414 default_par->wait_engine = xp_wait_engine;
1415 default_par->fill_rect = tgui_fill_rect;
1416 default_par->copy_rect = tgui_copy_rect;
1417 tridentfb_fix.accel = FB_ACCEL_TRIDENT_TGUI;
1418 }
1419
1420 default_par->chip_id = chip_id;
1421
1422 /* setup MMIO region */
1423 tridentfb_fix.mmio_start = pci_resource_start(dev, 1);
1424 tridentfb_fix.mmio_len = pci_resource_len(dev, 1);
1425
1426 if (!request_mem_region(tridentfb_fix.mmio_start,
1427 tridentfb_fix.mmio_len, "tridentfb")) {
1428 debug("request_region failed!\n");
1429 framebuffer_release(info);
1430 return -1;
1431 }
1432
1433 default_par->io_virt = ioremap_nocache(tridentfb_fix.mmio_start,
1434 tridentfb_fix.mmio_len);
1435
1436 if (!default_par->io_virt) {
1437 debug("ioremap failed\n");
1438 err = -1;
1439 goto out_unmap1;
1440 }
1441
1442 enable_mmio(default_par);
1443
1444 /* setup framebuffer memory */
1445 tridentfb_fix.smem_start = pci_resource_start(dev, 0);
1446 tridentfb_fix.smem_len = get_memsize(default_par);
1447
1448 if (!request_mem_region(tridentfb_fix.smem_start,
1449 tridentfb_fix.smem_len, "tridentfb")) {
1450 debug("request_mem_region failed!\n");
1451 disable_mmio(info->par);
1452 err = -1;
1453 goto out_unmap1;
1454 }
1455
1456 info->screen_base = ioremap_nocache(tridentfb_fix.smem_start,
1457 tridentfb_fix.smem_len);
1458
1459 if (!info->screen_base) {
1460 debug("ioremap failed\n");
1461 err = -1;
1462 goto out_unmap2;
1463 }
1464
1465 default_par->flatpanel = is_flatpanel(default_par);
1466
1467 if (default_par->flatpanel)
1468 nativex = get_nativex(default_par);
1469
1470 info->fix = tridentfb_fix;
1471 info->fbops = &tridentfb_ops;
1472 info->pseudo_palette = default_par->pseudo_pal;
1473
1474 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1475 if (!noaccel && default_par->init_accel) {
1476 info->flags &= ~FBINFO_HWACCEL_DISABLED;
1477 info->flags |= FBINFO_HWACCEL_COPYAREA;
1478 info->flags |= FBINFO_HWACCEL_FILLRECT;
1479 } else
1480 info->flags |= FBINFO_HWACCEL_DISABLED;
1481
1482 if (is_blade(chip_id) && chip_id != BLADE3D)
1483 info->flags |= FBINFO_READS_FAST;
1484
1485 info->pixmap.addr = kmalloc(4096, GFP_KERNEL);
1486 if (!info->pixmap.addr) {
1487 err = -ENOMEM;
1488 goto out_unmap2;
1489 }
1490
1491 info->pixmap.size = 4096;
1492 info->pixmap.buf_align = 4;
1493 info->pixmap.scan_align = 1;
1494 info->pixmap.access_align = 32;
1495 info->pixmap.flags = FB_PIXMAP_SYSTEM;
1496
1497 if (default_par->image_blit) {
1498 info->flags |= FBINFO_HWACCEL_IMAGEBLIT;
1499 info->pixmap.scan_align = 4;
1500 }
1501
1502 if (noaccel) {
1503 printk(KERN_DEBUG "disabling acceleration\n");
1504 info->flags |= FBINFO_HWACCEL_DISABLED;
1505 info->pixmap.scan_align = 1;
1506 }
1507
1508 if (!fb_find_mode(&info->var, info,
1509 mode_option, NULL, 0, NULL, bpp)) {
1510 err = -EINVAL;
1511 goto out_unmap2;
1512 }
1513 err = fb_alloc_cmap(&info->cmap, 256, 0);
1514 if (err < 0)
1515 goto out_unmap2;
1516
1517 info->var.activate |= FB_ACTIVATE_NOW;
1518 info->device = &dev->dev;
1519 if (register_framebuffer(info) < 0) {
1520 printk(KERN_ERR "tridentfb: could not register framebuffer\n");
1521 fb_dealloc_cmap(&info->cmap);
1522 err = -EINVAL;
1523 goto out_unmap2;
1524 }
1525 output("fb%d: %s frame buffer device %dx%d-%dbpp\n",
1526 info->node, info->fix.id, info->var.xres,
1527 info->var.yres, info->var.bits_per_pixel);
1528
1529 pci_set_drvdata(dev, info);
1530 return 0;
1531
1532 out_unmap2:
1533 kfree(info->pixmap.addr);
1534 if (info->screen_base)
1535 iounmap(info->screen_base);
1536 release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
1537 disable_mmio(info->par);
1538 out_unmap1:
1539 if (default_par->io_virt)
1540 iounmap(default_par->io_virt);
1541 release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1542 framebuffer_release(info);
1543 return err;
1544 }
1545
1546 static void __devexit trident_pci_remove(struct pci_dev *dev)
1547 {
1548 struct fb_info *info = pci_get_drvdata(dev);
1549 struct tridentfb_par *par = info->par;
1550
1551 unregister_framebuffer(info);
1552 iounmap(par->io_virt);
1553 iounmap(info->screen_base);
1554 release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
1555 release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1556 pci_set_drvdata(dev, NULL);
1557 kfree(info->pixmap.addr);
1558 fb_dealloc_cmap(&info->cmap);
1559 framebuffer_release(info);
1560 }
1561
1562 /* List of boards that we are trying to support */
1563 static struct pci_device_id trident_devices[] = {
1564 {PCI_VENDOR_ID_TRIDENT, BLADE3D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1565 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1566 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1567 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1568 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1569 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1570 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1571 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEE4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1572 {PCI_VENDOR_ID_TRIDENT, TGUI9440, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1573 {PCI_VENDOR_ID_TRIDENT, TGUI9660, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1574 {PCI_VENDOR_ID_TRIDENT, IMAGE975, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1575 {PCI_VENDOR_ID_TRIDENT, IMAGE985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1576 {PCI_VENDOR_ID_TRIDENT, CYBER9320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1577 {PCI_VENDOR_ID_TRIDENT, CYBER9388, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1578 {PCI_VENDOR_ID_TRIDENT, CYBER9520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1579 {PCI_VENDOR_ID_TRIDENT, CYBER9525DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1580 {PCI_VENDOR_ID_TRIDENT, CYBER9397, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1581 {PCI_VENDOR_ID_TRIDENT, CYBER9397DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1582 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1583 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1584 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm16, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1585 {0,}
1586 };
1587
1588 MODULE_DEVICE_TABLE(pci, trident_devices);
1589
1590 static struct pci_driver tridentfb_pci_driver = {
1591 .name = "tridentfb",
1592 .id_table = trident_devices,
1593 .probe = trident_pci_probe,
1594 .remove = __devexit_p(trident_pci_remove)
1595 };
1596
1597 /*
1598 * Parse user specified options (`video=trident:')
1599 * example:
1600 * video=trident:800x600,bpp=16,noaccel
1601 */
1602 #ifndef MODULE
1603 static int __init tridentfb_setup(char *options)
1604 {
1605 char *opt;
1606 if (!options || !*options)
1607 return 0;
1608 while ((opt = strsep(&options, ",")) != NULL) {
1609 if (!*opt)
1610 continue;
1611 if (!strncmp(opt, "noaccel", 7))
1612 noaccel = 1;
1613 else if (!strncmp(opt, "fp", 2))
1614 fp = 1;
1615 else if (!strncmp(opt, "crt", 3))
1616 fp = 0;
1617 else if (!strncmp(opt, "bpp=", 4))
1618 bpp = simple_strtoul(opt + 4, NULL, 0);
1619 else if (!strncmp(opt, "center", 6))
1620 center = 1;
1621 else if (!strncmp(opt, "stretch", 7))
1622 stretch = 1;
1623 else if (!strncmp(opt, "memsize=", 8))
1624 memsize = simple_strtoul(opt + 8, NULL, 0);
1625 else if (!strncmp(opt, "memdiff=", 8))
1626 memdiff = simple_strtoul(opt + 8, NULL, 0);
1627 else if (!strncmp(opt, "nativex=", 8))
1628 nativex = simple_strtoul(opt + 8, NULL, 0);
1629 else
1630 mode_option = opt;
1631 }
1632 return 0;
1633 }
1634 #endif
1635
1636 static int __init tridentfb_init(void)
1637 {
1638 #ifndef MODULE
1639 char *option = NULL;
1640
1641 if (fb_get_options("tridentfb", &option))
1642 return -ENODEV;
1643 tridentfb_setup(option);
1644 #endif
1645 return pci_register_driver(&tridentfb_pci_driver);
1646 }
1647
1648 static void __exit tridentfb_exit(void)
1649 {
1650 pci_unregister_driver(&tridentfb_pci_driver);
1651 }
1652
1653 module_init(tridentfb_init);
1654 module_exit(tridentfb_exit);
1655
1656 MODULE_AUTHOR("Jani Monoses <jani@iv.ro>");
1657 MODULE_DESCRIPTION("Framebuffer driver for Trident cards");
1658 MODULE_LICENSE("GPL");
1659 MODULE_ALIAS("cyblafb");
1660