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Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
[linux-2.6-block.git] / drivers / video / tridentfb.c
CommitLineData
1da177e4 1/*
49b1f4b4 2 * Frame buffer driver for Trident TGUI, Blade and Image series
1da177e4 3 *
245a2c2c 4 * Copyright 2001, 2002 - Jani Monoses <jani@iv.ro>
ddb53d48 5 * Copyright 2009 Krzysztof Helt <krzysztof.h1@wp.pl>
1da177e4
LT		 6 *
7 * CREDITS:(in order of appearance)
245a2c2c
KH		 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
1da177e4 14 * TODO:
245a2c2c 15 * timing value tweaking so it looks good on every monitor in every mode
1da177e4
LT		 16 */
17
1da177e4
LT		 18#include <linux/module.h>
19#include <linux/fb.h>
20#include <linux/init.h>
21#include <linux/pci.h>
22
23#include <linux/delay.h>
10172ed6 24#include <video/vga.h>
1da177e4
LT		 25#include <video/trident.h>
26
1da177e4 27struct tridentfb_par {
245a2c2c 28 void __iomem *io_virt; /* iospace virtual memory address */
ea8ee55c 29 u32 pseudo_pal[16];
122e8ad3 30 int chip_id;
6eed8e1e 31 int flatpanel;
d9cad04b
KH		 32 void (*init_accel) (struct tridentfb_par *, int, int);
33 void (*wait_engine) (struct tridentfb_par *);
34 void (*fill_rect)
35 (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
36 void (*copy_rect)
37 (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
0292be4a
KH		 38 void (*image_blit)
39 (struct tridentfb_par *par, const char*,
40 u32, u32, u32, u32, u32, u32);
5cf13845 41 unsigned char eng_oper; /* engine operation... */
1da177e4
LT		 42};
43
1da177e4 44static struct fb_fix_screeninfo tridentfb_fix = {
245a2c2c 45 .id = "Trident",
1da177e4
LT		 46 .type = FB_TYPE_PACKED_PIXELS,
47 .ypanstep = 1,
48 .visual = FB_VISUAL_PSEUDOCOLOR,
49 .accel = FB_ACCEL_NONE,
50};
51
1da177e4
LT		 52/* defaults which are normally overriden by user values */
53
54/* video mode */
5cf13845 55static char *mode_option __devinitdata = "640x480-8@60";
6eed8e1e 56static int bpp __devinitdata = 8;
1da177e4 57
6eed8e1e 58static int noaccel __devinitdata;
1da177e4
LT		 59
60static int center;
61static int stretch;
62
6eed8e1e
KH		 63static int fp __devinitdata;
64static int crt __devinitdata;
1da177e4 65
6eed8e1e
KH		 66static int memsize __devinitdata;
67static int memdiff __devinitdata;
1da177e4
LT		 68static int nativex;
69
07f41e45
KH		 70module_param(mode_option, charp, 0);
71MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'");
9e3f0ca8
KH		 72module_param_named(mode, mode_option, charp, 0);
73MODULE_PARM_DESC(mode, "Initial video mode e.g. '648x480-8@60' (deprecated)");
1da177e4
LT		 74module_param(bpp, int, 0);
75module_param(center, int, 0);
76module_param(stretch, int, 0);
77module_param(noaccel, int, 0);
78module_param(memsize, int, 0);
79module_param(memdiff, int, 0);
80module_param(nativex, int, 0);
81module_param(fp, int, 0);
6eed8e1e 82MODULE_PARM_DESC(fp, "Define if flatpanel is connected");
1da177e4 83module_param(crt, int, 0);
6eed8e1e 84MODULE_PARM_DESC(crt, "Define if CRT is connected");
1da177e4 85
5cf13845 86static inline int is_oldclock(int id)
6bdf1035 87{
a0d92256
KH		 88 return (id == TGUI9440) ||
89 (id == TGUI9660) ||
0e73a47f
KH		 90 (id == CYBER9320);
91}
92
5cf13845 93static inline int is_oldprotect(int id)
0e73a47f 94{
5cf13845 95 return is_oldclock(id) ||
0e73a47f 96 (id == PROVIDIA9685) ||
0e73a47f
KH		 97 (id == CYBER9382) ||
98 (id == CYBER9385);
6bdf1035
KH		 99}
100
5cf13845 101static inline int is_blade(int id)
e0759a5f
KH		 102{
103 return (id == BLADE3D) ||
104 (id == CYBERBLADEE4) ||
105 (id == CYBERBLADEi7) ||
106 (id == CYBERBLADEi7D) ||
107 (id == CYBERBLADEi1) ||
108 (id == CYBERBLADEi1D) ||
109 (id == CYBERBLADEAi1) ||
110 (id == CYBERBLADEAi1D);
111}
112
5cf13845 113static inline int is_xp(int id)
e0759a5f
KH		 114{
115 return (id == CYBERBLADEXPAi1) ||
116 (id == CYBERBLADEXPm8) ||
117 (id == CYBERBLADEXPm16);
118}
119
5cf13845 120static inline int is3Dchip(int id)
1da177e4 121{
5cf13845 122 return is_blade(id) || is_xp(id) ||
245a2c2c
KH		 123 (id == CYBER9397) || (id == CYBER9397DVD) ||
124 (id == CYBER9520) || (id == CYBER9525DVD) ||
5cf13845 125 (id == IMAGE975) || (id == IMAGE985);
1da177e4
LT		 126}
127
5cf13845 128static inline int iscyber(int id)
1da177e4
LT		 129{
130 switch (id) {
245a2c2c
KH		 131 case CYBER9388:
132 case CYBER9382:
133 case CYBER9385:
134 case CYBER9397:
135 case CYBER9397DVD:
136 case CYBER9520:
137 case CYBER9525DVD:
138 case CYBERBLADEE4:
139 case CYBERBLADEi7D:
140 case CYBERBLADEi1:
141 case CYBERBLADEi1D:
142 case CYBERBLADEAi1:
143 case CYBERBLADEAi1D:
144 case CYBERBLADEXPAi1:
145 return 1;
1da177e4 146
245a2c2c 147 case CYBER9320:
245a2c2c 148 case CYBERBLADEi7: /* VIA MPV4 integrated version */
245a2c2c
KH		 149 default:
150 /* case CYBERBLDAEXPm8: Strange */
151 /* case CYBERBLDAEXPm16: Strange */
152 return 0;
1da177e4
LT		 153 }
154}
155
306fa6f6
KH		 156static inline void t_outb(struct tridentfb_par *p, u8 val, u16 reg)
157{
158 fb_writeb(val, p->io_virt + reg);
159}
1da177e4 160
306fa6f6
KH		 161static inline u8 t_inb(struct tridentfb_par *p, u16 reg)
162{
163 return fb_readb(p->io_virt + reg);
164}
1da177e4 165
306fa6f6
KH		 166static inline void writemmr(struct tridentfb_par *par, u16 r, u32 v)
167{
168 fb_writel(v, par->io_virt + r);
169}
170
171static inline u32 readmmr(struct tridentfb_par *par, u16 r)
172{
173 return fb_readl(par->io_virt + r);
174}
1da177e4 175
1da177e4
LT		 176/*
177 * Blade specific acceleration.
178 */
179
245a2c2c 180#define point(x, y) ((y) << 16 | (x))
1da177e4 181
306fa6f6 182static void blade_init_accel(struct tridentfb_par *par, int pitch, int bpp)
1da177e4 183{
245a2c2c 184 int v1 = (pitch >> 3) << 20;
49b1f4b4
KH		 185 int tmp = bpp == 24 ? 2 : (bpp >> 4);
186 int v2 = v1 | (tmp << 29);
187
306fa6f6
KH		 188 writemmr(par, 0x21C0, v2);
189 writemmr(par, 0x21C4, v2);
190 writemmr(par, 0x21B8, v2);
191 writemmr(par, 0x21BC, v2);
192 writemmr(par, 0x21D0, v1);
193 writemmr(par, 0x21D4, v1);
194 writemmr(par, 0x21C8, v1);
195 writemmr(par, 0x21CC, v1);
196 writemmr(par, 0x216C, 0);
1da177e4
LT		 197}
198
306fa6f6 199static void blade_wait_engine(struct tridentfb_par *par)
1da177e4 200{
49b1f4b4
KH		 201 while (readmmr(par, STATUS) & 0xFA800000)
202 cpu_relax();
1da177e4
LT		 203}
204
306fa6f6
KH		 205static void blade_fill_rect(struct tridentfb_par *par,
206 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
1da177e4 207{
49b1f4b4
KH		 208 writemmr(par, COLOR, c);
209 writemmr(par, ROP, rop ? ROP_X : ROP_S);
306fa6f6 210 writemmr(par, CMD, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2);
1da177e4 211
49b1f4b4
KH		 212 writemmr(par, DST1, point(x, y));
213 writemmr(par, DST2, point(x + w - 1, y + h - 1));
1da177e4
LT		 214}
215
0292be4a
KH		 216static void blade_image_blit(struct tridentfb_par *par, const char *data,
217 u32 x, u32 y, u32 w, u32 h, u32 c, u32 b)
218{
219 unsigned size = ((w + 31) >> 5) * h;
220
221 writemmr(par, COLOR, c);
222 writemmr(par, BGCOLOR, b);
223 writemmr(par, CMD, 0xa0000000 | 3 << 19);
224
225 writemmr(par, DST1, point(x, y));
226 writemmr(par, DST2, point(x + w - 1, y + h - 1));
227
228 memcpy(par->io_virt + 0x10000, data, 4 * size);
229}
230
306fa6f6
KH		 231static void blade_copy_rect(struct tridentfb_par *par,
232 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
1da177e4 233{
1da177e4 234 int direction = 2;
49b1f4b4
KH		 235 u32 s1 = point(x1, y1);
236 u32 s2 = point(x1 + w - 1, y1 + h - 1);
237 u32 d1 = point(x2, y2);
238 u32 d2 = point(x2 + w - 1, y2 + h - 1);
1da177e4
LT		 239
240 if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
245a2c2c 241 direction = 0;
1da177e4 242
306fa6f6
KH		 243 writemmr(par, ROP, ROP_S);
244 writemmr(par, CMD, 0xE0000000 | 1 << 19 | 1 << 4 | 1 << 2 | direction);
1da177e4 245
49b1f4b4
KH		 246 writemmr(par, SRC1, direction ? s2 : s1);
247 writemmr(par, SRC2, direction ? s1 : s2);
248 writemmr(par, DST1, direction ? d2 : d1);
249 writemmr(par, DST2, direction ? d1 : d2);
1da177e4
LT		 250}
251
1da177e4
LT		 252/*
253 * BladeXP specific acceleration functions
254 */
255
306fa6f6 256static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp)
1da177e4 257{
49b1f4b4
KH		 258 unsigned char x = bpp == 24 ? 3 : (bpp >> 4);
259 int v1 = pitch << (bpp == 24 ? 20 : (18 + x));
1da177e4
LT		 260
261 switch (pitch << (bpp >> 3)) {
245a2c2c
KH		 262 case 8192:
263 case 512:
264 x |= 0x00;
265 break;
266 case 1024:
267 x |= 0x04;
268 break;
269 case 2048:
270 x |= 0x08;
271 break;
272 case 4096:
273 x |= 0x0C;
274 break;
1da177e4
LT		 275 }
276
306fa6f6 277 t_outb(par, x, 0x2125);
1da177e4 278
5cf13845 279 par->eng_oper = x | 0x40;
1da177e4 280
306fa6f6
KH		 281 writemmr(par, 0x2154, v1);
282 writemmr(par, 0x2150, v1);
283 t_outb(par, 3, 0x2126);
1da177e4
LT		 284}
285
306fa6f6 286static void xp_wait_engine(struct tridentfb_par *par)
1da177e4 287{
5cf13845
KH		 288 int count = 0;
289 int timeout = 0;
1da177e4 290
49b1f4b4 291 while (t_inb(par, STATUS) & 0x80) {
1da177e4
LT		 292 count++;
293 if (count == 10000000) {
294 /* Timeout */
295 count = 9990000;
296 timeout++;
297 if (timeout == 8) {
298 /* Reset engine */
49b1f4b4 299 t_outb(par, 0x00, STATUS);
1da177e4
LT		 300 return;
301 }
302 }
49b1f4b4 303 cpu_relax();
1da177e4
LT		 304 }
305}
306
306fa6f6
KH		 307static void xp_fill_rect(struct tridentfb_par *par,
308 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
1da177e4 309{
306fa6f6
KH		 310 writemmr(par, 0x2127, ROP_P);
311 writemmr(par, 0x2158, c);
49b1f4b4
KH		 312 writemmr(par, DRAWFL, 0x4000);
313 writemmr(par, OLDDIM, point(h, w));
314 writemmr(par, OLDDST, point(y, x));
315 t_outb(par, 0x01, OLDCMD);
5cf13845 316 t_outb(par, par->eng_oper, 0x2125);
1da177e4
LT		 317}
318
306fa6f6
KH		 319static void xp_copy_rect(struct tridentfb_par *par,
320 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
1da177e4 321{
245a2c2c 322 u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
5cf13845 323 int direction = 0x0004;
245a2c2c 324
1da177e4
LT		 325 if ((x1 < x2) && (y1 == y2)) {
326 direction |= 0x0200;
327 x1_tmp = x1 + w - 1;
328 x2_tmp = x2 + w - 1;
329 } else {
330 x1_tmp = x1;
331 x2_tmp = x2;
332 }
245a2c2c 333
1da177e4
LT		 334 if (y1 < y2) {
335 direction |= 0x0100;
336 y1_tmp = y1 + h - 1;
337 y2_tmp = y2 + h - 1;
245a2c2c 338 } else {
1da177e4
LT		 339 y1_tmp = y1;
340 y2_tmp = y2;
341 }
342
49b1f4b4 343 writemmr(par, DRAWFL, direction);
306fa6f6 344 t_outb(par, ROP_S, 0x2127);
49b1f4b4
KH		 345 writemmr(par, OLDSRC, point(y1_tmp, x1_tmp));
346 writemmr(par, OLDDST, point(y2_tmp, x2_tmp));
347 writemmr(par, OLDDIM, point(h, w));
348 t_outb(par, 0x01, OLDCMD);
1da177e4
LT		 349}
350
1da177e4
LT		 351/*
352 * Image specific acceleration functions
353 */
306fa6f6 354static void image_init_accel(struct tridentfb_par *par, int pitch, int bpp)
1da177e4 355{
49b1f4b4
KH		 356 int tmp = bpp == 24 ? 2: (bpp >> 4);
357
306fa6f6
KH		 358 writemmr(par, 0x2120, 0xF0000000);
359 writemmr(par, 0x2120, 0x40000000 | tmp);
360 writemmr(par, 0x2120, 0x80000000);
361 writemmr(par, 0x2144, 0x00000000);
362 writemmr(par, 0x2148, 0x00000000);
363 writemmr(par, 0x2150, 0x00000000);
364 writemmr(par, 0x2154, 0x00000000);
365 writemmr(par, 0x2120, 0x60000000 | (pitch << 16) | pitch);
366 writemmr(par, 0x216C, 0x00000000);
367 writemmr(par, 0x2170, 0x00000000);
368 writemmr(par, 0x217C, 0x00000000);
369 writemmr(par, 0x2120, 0x10000000);
370 writemmr(par, 0x2130, (2047 << 16) | 2047);
1da177e4
LT		 371}
372
306fa6f6 373static void image_wait_engine(struct tridentfb_par *par)
1da177e4 374{
49b1f4b4
KH		 375 while (readmmr(par, 0x2164) & 0xF0000000)
376 cpu_relax();
1da177e4
LT		 377}
378
306fa6f6
KH		 379static void image_fill_rect(struct tridentfb_par *par,
380 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
1da177e4 381{
306fa6f6
KH		 382 writemmr(par, 0x2120, 0x80000000);
383 writemmr(par, 0x2120, 0x90000000 | ROP_S);
1da177e4 384
306fa6f6 385 writemmr(par, 0x2144, c);
1da177e4 386
49b1f4b4
KH		 387 writemmr(par, DST1, point(x, y));
388 writemmr(par, DST2, point(x + w - 1, y + h - 1));
1da177e4 389
306fa6f6 390 writemmr(par, 0x2124, 0x80000000 | 3 << 22 | 1 << 10 | 1 << 9);
1da177e4
LT		 391}
392
306fa6f6
KH		 393static void image_copy_rect(struct tridentfb_par *par,
394 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
1da177e4 395{
2c86a0c2 396 int direction = 0x4;
49b1f4b4
KH		 397 u32 s1 = point(x1, y1);
398 u32 s2 = point(x1 + w - 1, y1 + h - 1);
399 u32 d1 = point(x2, y2);
400 u32 d2 = point(x2 + w - 1, y2 + h - 1);
1da177e4 401
245a2c2c
KH		 402 if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
403 direction = 0;
404
306fa6f6
KH		 405 writemmr(par, 0x2120, 0x80000000);
406 writemmr(par, 0x2120, 0x90000000 | ROP_S);
245a2c2c 407
49b1f4b4
KH		 408 writemmr(par, SRC1, direction ? s2 : s1);
409 writemmr(par, SRC2, direction ? s1 : s2);
410 writemmr(par, DST1, direction ? d2 : d1);
411 writemmr(par, DST2, direction ? d1 : d2);
306fa6f6
KH		 412 writemmr(par, 0x2124,
413 0x80000000 | 1 << 22 | 1 << 10 | 1 << 7 | direction);
245a2c2c 414}
1da177e4 415
bcac2d5f
KH		 416/*
417 * TGUI 9440/96XX acceleration
418 */
419
420static void tgui_init_accel(struct tridentfb_par *par, int pitch, int bpp)
421{
49b1f4b4 422 unsigned char x = bpp == 24 ? 3 : (bpp >> 4);
bcac2d5f
KH		 423
424 /* disable clipping */
425 writemmr(par, 0x2148, 0);
426 writemmr(par, 0x214C, point(4095, 2047));
427
bcac2d5f
KH		 428 switch ((pitch * bpp) / 8) {
429 case 8192:
430 case 512:
431 x |= 0x00;
432 break;
433 case 1024:
434 x |= 0x04;
435 break;
436 case 2048:
437 x |= 0x08;
438 break;
439 case 4096:
440 x |= 0x0C;
441 break;
442 }
443
444 fb_writew(x, par->io_virt + 0x2122);
445}
446
447static void tgui_fill_rect(struct tridentfb_par *par,
448 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
449{
450 t_outb(par, ROP_P, 0x2127);
49b1f4b4
KH		 451 writemmr(par, OLDCLR, c);
452 writemmr(par, DRAWFL, 0x4020);
453 writemmr(par, OLDDIM, point(w - 1, h - 1));
454 writemmr(par, OLDDST, point(x, y));
455 t_outb(par, 1, OLDCMD);
bcac2d5f
KH		 456}
457
458static void tgui_copy_rect(struct tridentfb_par *par,
459 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
460{
461 int flags = 0;
462 u16 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
463
464 if ((x1 < x2) && (y1 == y2)) {
465 flags |= 0x0200;
466 x1_tmp = x1 + w - 1;
467 x2_tmp = x2 + w - 1;
468 } else {
469 x1_tmp = x1;
470 x2_tmp = x2;
471 }
472
473 if (y1 < y2) {
474 flags |= 0x0100;
475 y1_tmp = y1 + h - 1;
476 y2_tmp = y2 + h - 1;
477 } else {
478 y1_tmp = y1;
479 y2_tmp = y2;
480 }
481
49b1f4b4 482 writemmr(par, DRAWFL, 0x4 | flags);
bcac2d5f 483 t_outb(par, ROP_S, 0x2127);
49b1f4b4
KH		 484 writemmr(par, OLDSRC, point(x1_tmp, y1_tmp));
485 writemmr(par, OLDDST, point(x2_tmp, y2_tmp));
486 writemmr(par, OLDDIM, point(w - 1, h - 1));
487 t_outb(par, 1, OLDCMD);
bcac2d5f
KH		 488}
489
1da177e4
LT		 490/*
491 * Accel functions called by the upper layers
492 */
245a2c2c
KH		 493static void tridentfb_fillrect(struct fb_info *info,
494 const struct fb_fillrect *fr)
1da177e4 495{
306fa6f6 496 struct tridentfb_par *par = info->par;
49b1f4b4 497 int col;
245a2c2c 498
01a2d9ed
KH		 499 if (info->flags & FBINFO_HWACCEL_DISABLED) {
500 cfb_fillrect(info, fr);
501 return;
502 }
49b1f4b4
KH		 503 if (info->var.bits_per_pixel == 8) {
504 col = fr->color;
245a2c2c
KH		 505 col |= col << 8;
506 col |= col << 16;
49b1f4b4 507 } else
245a2c2c 508 col = ((u32 *)(info->pseudo_palette))[fr->color];
245a2c2c 509
49b1f4b4 510 par->wait_engine(par);
d9cad04b 511 par->fill_rect(par, fr->dx, fr->dy, fr->width,
306fa6f6 512 fr->height, col, fr->rop);
1da177e4 513}
49b1f4b4 514
0292be4a
KH		 515static void tridentfb_imageblit(struct fb_info *info,
516 const struct fb_image *img)
517{
518 struct tridentfb_par *par = info->par;
519 int col, bgcol;
520
521 if ((info->flags & FBINFO_HWACCEL_DISABLED) || img->depth != 1) {
522 cfb_imageblit(info, img);
523 return;
524 }
525 if (info->var.bits_per_pixel == 8) {
526 col = img->fg_color;
527 col |= col << 8;
528 col |= col << 16;
529 bgcol = img->bg_color;
530 bgcol |= bgcol << 8;
531 bgcol |= bgcol << 16;
532 } else {
533 col = ((u32 *)(info->pseudo_palette))[img->fg_color];
534 bgcol = ((u32 *)(info->pseudo_palette))[img->bg_color];
535 }
536
537 par->wait_engine(par);
538 if (par->image_blit)
539 par->image_blit(par, img->data, img->dx, img->dy,
540 img->width, img->height, col, bgcol);
541 else
542 cfb_imageblit(info, img);
543}
544
245a2c2c
KH		 545static void tridentfb_copyarea(struct fb_info *info,
546 const struct fb_copyarea *ca)
1da177e4 547{
306fa6f6
KH		 548 struct tridentfb_par *par = info->par;
549
01a2d9ed
KH		 550 if (info->flags & FBINFO_HWACCEL_DISABLED) {
551 cfb_copyarea(info, ca);
552 return;
553 }
49b1f4b4 554 par->wait_engine(par);
d9cad04b 555 par->copy_rect(par, ca->sx, ca->sy, ca->dx, ca->dy,
306fa6f6 556 ca->width, ca->height);
49b1f4b4
KH		 557}
558
559static int tridentfb_sync(struct fb_info *info)
560{
561 struct tridentfb_par *par = info->par;
562
01a2d9ed
KH		 563 if (!(info->flags & FBINFO_HWACCEL_DISABLED))
564 par->wait_engine(par);
49b1f4b4 565 return 0;
1da177e4 566}
1da177e4 567
1da177e4
LT		 568/*
569 * Hardware access functions
570 */
571
306fa6f6 572static inline unsigned char read3X4(struct tridentfb_par *par, int reg)
1da177e4 573{
10172ed6 574 return vga_mm_rcrt(par->io_virt, reg);
1da177e4
LT		 575}
576
306fa6f6
KH		 577static inline void write3X4(struct tridentfb_par *par, int reg,
578 unsigned char val)
1da177e4 579{
10172ed6 580 vga_mm_wcrt(par->io_virt, reg, val);
1da177e4
LT		 581}
582
10172ed6
KH		 583static inline unsigned char read3CE(struct tridentfb_par *par,
584 unsigned char reg)
1da177e4 585{
10172ed6 586 return vga_mm_rgfx(par->io_virt, reg);
1da177e4
LT		 587}
588
306fa6f6
KH		 589static inline void writeAttr(struct tridentfb_par *par, int reg,
590 unsigned char val)
1da177e4 591{
10172ed6
KH		 592 fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */
593 vga_mm_wattr(par->io_virt, reg, val);
1da177e4
LT		 594}
595
306fa6f6
KH		 596static inline void write3CE(struct tridentfb_par *par, int reg,
597 unsigned char val)
1da177e4 598{
10172ed6 599 vga_mm_wgfx(par->io_virt, reg, val);
1da177e4
LT		 600}
601
13b0de49 602static void enable_mmio(struct tridentfb_par *par)
1da177e4
LT		 603{
604 /* Goto New Mode */
10172ed6 605 vga_io_rseq(0x0B);
1da177e4
LT		 606
607 /* Unprotect registers */
10172ed6 608 vga_io_wseq(NewMode1, 0x80);
13b0de49
KH		 609 if (!is_oldprotect(par->chip_id))
610 vga_io_wseq(Protection, 0x92);
245a2c2c 611
1da177e4 612 /* Enable MMIO */
245a2c2c 613 outb(PCIReg, 0x3D4);
1da177e4 614 outb(inb(0x3D5) | 0x01, 0x3D5);
e8ed857c
KH		 615}
616
306fa6f6 617static void disable_mmio(struct tridentfb_par *par)
e8ed857c 618{
e8ed857c 619 /* Goto New Mode */
10172ed6 620 vga_mm_rseq(par->io_virt, 0x0B);
e8ed857c
KH		 621
622 /* Unprotect registers */
10172ed6 623 vga_mm_wseq(par->io_virt, NewMode1, 0x80);
13b0de49
KH		 624 if (!is_oldprotect(par->chip_id))
625 vga_mm_wseq(par->io_virt, Protection, 0x92);
e8ed857c
KH		 626
627 /* Disable MMIO */
306fa6f6
KH		 628 t_outb(par, PCIReg, 0x3D4);
629 t_outb(par, t_inb(par, 0x3D5) & ~0x01, 0x3D5);
1da177e4
LT		 630}
631
5cf13845 632static inline void crtc_unlock(struct tridentfb_par *par)
306fa6f6 633{
10172ed6
KH		 634 write3X4(par, VGA_CRTC_V_SYNC_END,
635 read3X4(par, VGA_CRTC_V_SYNC_END) & 0x7F);
306fa6f6 636}
1da177e4
LT		 637
638/* Return flat panel's maximum x resolution */
306fa6f6 639static int __devinit get_nativex(struct tridentfb_par *par)
1da177e4 640{
245a2c2c 641 int x, y, tmp;
1da177e4
LT		 642
643 if (nativex)
644 return nativex;
645
306fa6f6 646 tmp = (read3CE(par, VertStretch) >> 4) & 3;
1da177e4
LT		 647
648 switch (tmp) {
245a2c2c
KH		 649 case 0:
650 x = 1280; y = 1024;
651 break;
652 case 2:
653 x = 1024; y = 768;
654 break;
655 case 3:
656 x = 800; y = 600;
657 break;
658 case 4:
659 x = 1400; y = 1050;
660 break;
661 case 1:
662 default:
663 x = 640; y = 480;
664 break;
1da177e4
LT		 665 }
666
667 output("%dx%d flat panel found\n", x, y);
668 return x;
669}
670
671/* Set pitch */
5cf13845 672static inline void set_lwidth(struct tridentfb_par *par, int width)
1da177e4 673{
10172ed6 674 write3X4(par, VGA_CRTC_OFFSET, width & 0xFF);
306fa6f6
KH		 675 write3X4(par, AddColReg,
676 (read3X4(par, AddColReg) & 0xCF) | ((width & 0x300) >> 4));
1da177e4
LT		 677}
678
679/* For resolutions smaller than FP resolution stretch */
306fa6f6 680static void screen_stretch(struct tridentfb_par *par)
1da177e4 681{
122e8ad3 682 if (par->chip_id != CYBERBLADEXPAi1)
306fa6f6 683 write3CE(par, BiosReg, 0);
245a2c2c 684 else
306fa6f6
KH		 685 write3CE(par, BiosReg, 8);
686 write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 1);
687 write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 1);
1da177e4
LT		 688}
689
690/* For resolutions smaller than FP resolution center */
5cf13845 691static inline void screen_center(struct tridentfb_par *par)
1da177e4 692{
306fa6f6
KH		 693 write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 0x80);
694 write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 0x80);
1da177e4
LT		 695}
696
697/* Address of first shown pixel in display memory */
306fa6f6 698static void set_screen_start(struct tridentfb_par *par, int base)
1da177e4 699{
306fa6f6 700 u8 tmp;
10172ed6
KH		 701 write3X4(par, VGA_CRTC_START_LO, base & 0xFF);
702 write3X4(par, VGA_CRTC_START_HI, (base & 0xFF00) >> 8);
306fa6f6
KH		 703 tmp = read3X4(par, CRTCModuleTest) & 0xDF;
704 write3X4(par, CRTCModuleTest, tmp | ((base & 0x10000) >> 11));
705 tmp = read3X4(par, CRTHiOrd) & 0xF8;
706 write3X4(par, CRTHiOrd, tmp | ((base & 0xE0000) >> 17));
1da177e4
LT		 707}
708
1da177e4 709/* Set dotclock frequency */
306fa6f6 710static void set_vclk(struct tridentfb_par *par, unsigned long freq)
1da177e4 711{
245a2c2c 712 int m, n, k;
6bdf1035
KH		 713 unsigned long fi, d, di;
714 unsigned char best_m = 0, best_n = 0, best_k = 0;
715 unsigned char hi, lo;
6280fd4f 716 unsigned char shift = !is_oldclock(par->chip_id) ? 2 : 1;
1da177e4 717
3f275ea3 718 d = 20000;
6280fd4f
KH		 719 for (k = shift; k >= 0; k--)
720 for (m = 1; m < 32; m++) {
721 n = ((m + 2) << shift) - 8;
34dec243 722 for (n = (n < 0 ? 0 : n); n < 122; n++) {
3f275ea3 723 fi = ((14318l * (n + 8)) / (m + 2)) >> k;
34dec243 724 di = abs(fi - freq);
6280fd4f 725 if (di < d || (di == d && k == best_k)) {
245a2c2c 726 d = di;
6bdf1035
KH		 727 best_n = n;
728 best_m = m;
729 best_k = k;
245a2c2c 730 }
3f275ea3
KH		 731 if (fi > freq)
732 break;
245a2c2c 733 }
34dec243 734 }
6bdf1035
KH		 735
736 if (is_oldclock(par->chip_id)) {
737 lo = best_n | (best_m << 7);
738 hi = (best_m >> 1) | (best_k << 4);
739 } else {
740 lo = best_n;
741 hi = best_m | (best_k << 6);
742 }
743
122e8ad3 744 if (is3Dchip(par->chip_id)) {
10172ed6
KH		 745 vga_mm_wseq(par->io_virt, ClockHigh, hi);
746 vga_mm_wseq(par->io_virt, ClockLow, lo);
1da177e4 747 } else {
c1724fec
KH		 748 t_outb(par, lo, 0x43C8);
749 t_outb(par, hi, 0x43C9);
1da177e4 750 }
245a2c2c 751 debug("VCLK = %X %X\n", hi, lo);
1da177e4
LT		 752}
753
754/* Set number of lines for flat panels*/
306fa6f6 755static void set_number_of_lines(struct tridentfb_par *par, int lines)
1da177e4 756{
306fa6f6 757 int tmp = read3CE(par, CyberEnhance) & 0x8F;
1da177e4
LT		 758 if (lines > 1024)
759 tmp |= 0x50;
760 else if (lines > 768)
761 tmp |= 0x30;
762 else if (lines > 600)
763 tmp |= 0x20;
764 else if (lines > 480)
765 tmp |= 0x10;
306fa6f6 766 write3CE(par, CyberEnhance, tmp);
1da177e4
LT		 767}
768
769/*
770 * If we see that FP is active we assume we have one.
6eed8e1e 771 * Otherwise we have a CRT display. User can override.
1da177e4 772 */
6eed8e1e 773static int __devinit is_flatpanel(struct tridentfb_par *par)
1da177e4
LT		 774{
775 if (fp)
6eed8e1e 776 return 1;
122e8ad3 777 if (crt || !iscyber(par->chip_id))
6eed8e1e
KH		 778 return 0;
779 return (read3CE(par, FPConfig) & 0x10) ? 1 : 0;
1da177e4
LT		 780}
781
782/* Try detecting the video memory size */
306fa6f6 783static unsigned int __devinit get_memsize(struct tridentfb_par *par)
1da177e4
LT		 784{
785 unsigned char tmp, tmp2;
786 unsigned int k;
787
788 /* If memory size provided by user */
789 if (memsize)
790 k = memsize * Kb;
791 else
122e8ad3 792 switch (par->chip_id) {
245a2c2c
KH		 793 case CYBER9525DVD:
794 k = 2560 * Kb;
795 break;
1da177e4 796 default:
306fa6f6 797 tmp = read3X4(par, SPR) & 0x0F;
1da177e4
LT		 798 switch (tmp) {
799
245a2c2c 800 case 0x01:
b614ce8b 801 k = 512 * Kb;
245a2c2c
KH		 802 break;
803 case 0x02:
804 k = 6 * Mb; /* XP */
805 break;
806 case 0x03:
807 k = 1 * Mb;
808 break;
809 case 0x04:
810 k = 8 * Mb;
811 break;
812 case 0x06:
813 k = 10 * Mb; /* XP */
814 break;
815 case 0x07:
816 k = 2 * Mb;
817 break;
818 case 0x08:
819 k = 12 * Mb; /* XP */
820 break;
821 case 0x0A:
822 k = 14 * Mb; /* XP */
823 break;
824 case 0x0C:
825 k = 16 * Mb; /* XP */
826 break;
827 case 0x0E: /* XP */
828
10172ed6 829 tmp2 = vga_mm_rseq(par->io_virt, 0xC1);
245a2c2c
KH		 830 switch (tmp2) {
831 case 0x00:
832 k = 20 * Mb;
833 break;
834 case 0x01:
835 k = 24 * Mb;
836 break;
837 case 0x10:
838 k = 28 * Mb;
839 break;
840 case 0x11:
841 k = 32 * Mb;
842 break;
843 default:
844 k = 1 * Mb;
845 break;
846 }
847 break;
848
849 case 0x0F:
850 k = 4 * Mb;
851 break;
852 default:
853 k = 1 * Mb;
1da177e4 854 break;
1da177e4 855 }
245a2c2c 856 }
1da177e4
LT		 857
858 k -= memdiff * Kb;
245a2c2c 859 output("framebuffer size = %d Kb\n", k / Kb);
1da177e4
LT		 860 return k;
861}
862
863/* See if we can handle the video mode described in var */
245a2c2c
KH		 864static int tridentfb_check_var(struct fb_var_screeninfo *var,
865 struct fb_info *info)
1da177e4 866{
6eed8e1e 867 struct tridentfb_par *par = info->par;
1da177e4 868 int bpp = var->bits_per_pixel;
bcac2d5f 869 int line_length;
74a933fe 870 int ramdac = 230000; /* 230MHz for most 3D chips */
1da177e4
LT		 871 debug("enter\n");
872
873 /* check color depth */
245a2c2c 874 if (bpp == 24)
1da177e4 875 bpp = var->bits_per_pixel = 32;
49b1f4b4
KH		 876 if (bpp != 8 && bpp != 16 && bpp != 32)
877 return -EINVAL;
54f019e5
KH		 878 if (par->chip_id == TGUI9440 && bpp == 32)
879 return -EINVAL;
245a2c2c 880 /* check whether resolution fits on panel and in memory */
6eed8e1e 881 if (par->flatpanel && nativex && var->xres > nativex)
1da177e4 882 return -EINVAL;
74a933fe
KH		 883 /* various resolution checks */
884 var->xres = (var->xres + 7) & ~0x7;
49b1f4b4 885 if (var->xres > var->xres_virtual)
74a933fe 886 var->xres_virtual = var->xres;
49b1f4b4
KH		 887 if (var->yres > var->yres_virtual)
888 var->yres_virtual = var->yres;
889 if (var->xres_virtual > 4095 || var->yres > 2048)
890 return -EINVAL;
891 /* prevent from position overflow for acceleration */
892 if (var->yres_virtual > 0xffff)
893 return -EINVAL;
bcac2d5f 894 line_length = var->xres_virtual * bpp / 8;
01a2d9ed
KH		 895
896 if (!is3Dchip(par->chip_id) &&
897 !(info->flags & FBINFO_HWACCEL_DISABLED)) {
bcac2d5f
KH		 898 /* acceleration requires line length to be power of 2 */
899 if (line_length <= 512)
900 var->xres_virtual = 512 * 8 / bpp;
901 else if (line_length <= 1024)
902 var->xres_virtual = 1024 * 8 / bpp;
903 else if (line_length <= 2048)
904 var->xres_virtual = 2048 * 8 / bpp;
905 else if (line_length <= 4096)
906 var->xres_virtual = 4096 * 8 / bpp;
907 else if (line_length <= 8192)
908 var->xres_virtual = 8192 * 8 / bpp;
49b1f4b4
KH		 909 else
910 return -EINVAL;
bcac2d5f
KH		 911
912 line_length = var->xres_virtual * bpp / 8;
913 }
01a2d9ed 914
f330c4b1
KH		 915 /* datasheet specifies how to set panning only up to 4 MB */
916 if (line_length * (var->yres_virtual - var->yres) > (4 << 20))
917 var->yres_virtual = ((4 << 20) / line_length) + var->yres;
918
bcac2d5f 919 if (line_length * var->yres_virtual > info->fix.smem_len)
1da177e4
LT		 920 return -EINVAL;
921
922 switch (bpp) {
245a2c2c
KH		 923 case 8:
924 var->red.offset = 0;
a4af1798
KH		 925 var->red.length = 8;
926 var->green = var->red;
927 var->blue = var->red;
245a2c2c
KH		 928 break;
929 case 16:
930 var->red.offset = 11;
931 var->green.offset = 5;
932 var->blue.offset = 0;
933 var->red.length = 5;
934 var->green.length = 6;
935 var->blue.length = 5;
936 break;
937 case 32:
938 var->red.offset = 16;
939 var->green.offset = 8;
940 var->blue.offset = 0;
941 var->red.length = 8;
942 var->green.length = 8;
943 var->blue.length = 8;
944 break;
945 default:
946 return -EINVAL;
1da177e4 947 }
74a933fe
KH		 948
949 if (is_xp(par->chip_id))
950 ramdac = 350000;
951
952 switch (par->chip_id) {
953 case TGUI9440:
54f019e5 954 ramdac = (bpp >= 16) ? 45000 : 90000;
74a933fe
KH		 955 break;
956 case CYBER9320:
957 case TGUI9660:
958 ramdac = 135000;
959 break;
960 case PROVIDIA9685:
961 case CYBER9388:
962 case CYBER9382:
963 case CYBER9385:
964 ramdac = 170000;
965 break;
966 }
967
968 /* The clock is doubled for 32 bpp */
969 if (bpp == 32)
970 ramdac /= 2;
971
972 if (PICOS2KHZ(var->pixclock) > ramdac)
973 return -EINVAL;
974
1da177e4
LT		 975 debug("exit\n");
976
977 return 0;
978
979}
245a2c2c 980
1da177e4
LT		 981/* Pan the display */
982static int tridentfb_pan_display(struct fb_var_screeninfo *var,
245a2c2c 983 struct fb_info *info)
1da177e4 984{
306fa6f6 985 struct tridentfb_par *par = info->par;
1da177e4
LT		 986 unsigned int offset;
987
988 debug("enter\n");
bcac2d5f 989 offset = (var->xoffset + (var->yoffset * var->xres_virtual))
245a2c2c 990 * var->bits_per_pixel / 32;
306fa6f6 991 set_screen_start(par, offset);
1da177e4
LT		 992 debug("exit\n");
993 return 0;
994}
995
5cf13845 996static inline void shadowmode_on(struct tridentfb_par *par)
306fa6f6
KH		 997{
998 write3CE(par, CyberControl, read3CE(par, CyberControl) | 0x81);
999}
1000
5cf13845 1001static inline void shadowmode_off(struct tridentfb_par *par)
306fa6f6
KH		 1002{
1003 write3CE(par, CyberControl, read3CE(par, CyberControl) & 0x7E);
1004}
1da177e4
LT		 1005
1006/* Set the hardware to the requested video mode */
1007static int tridentfb_set_par(struct fb_info *info)
1008{
5cf13845 1009 struct tridentfb_par *par = info->par;
245a2c2c
KH		 1010 u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend;
1011 u32 vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend;
1012 struct fb_var_screeninfo *var = &info->var;
1da177e4
LT		 1013 int bpp = var->bits_per_pixel;
1014 unsigned char tmp;
3f275ea3
KH		 1015 unsigned long vclk;
1016
1da177e4 1017 debug("enter\n");
245a2c2c 1018 hdispend = var->xres / 8 - 1;
34dec243
KH		 1019 hsyncstart = (var->xres + var->right_margin) / 8;
1020 hsyncend = (var->xres + var->right_margin + var->hsync_len) / 8;
7f762d23
KH		 1021 htotal = (var->xres + var->left_margin + var->right_margin +
1022 var->hsync_len) / 8 - 5;
0e73a47f 1023 hblankstart = hdispend + 1;
7f762d23 1024 hblankend = htotal + 3;
1da177e4 1025
1da177e4
LT		 1026 vdispend = var->yres - 1;
1027 vsyncstart = var->yres + var->lower_margin;
7f762d23
KH		 1028 vsyncend = vsyncstart + var->vsync_len;
1029 vtotal = var->upper_margin + vsyncend - 2;
0e73a47f 1030 vblankstart = vdispend + 1;
7f762d23 1031 vblankend = vtotal;
1da177e4 1032
34dec243
KH		 1033 if (info->var.vmode & FB_VMODE_INTERLACED) {
1034 vtotal /= 2;
1035 vdispend /= 2;
1036 vsyncstart /= 2;
1037 vsyncend /= 2;
1038 vblankstart /= 2;
1039 vblankend /= 2;
1040 }
1041
13b0de49 1042 enable_mmio(par);
306fa6f6
KH		 1043 crtc_unlock(par);
1044 write3CE(par, CyberControl, 8);
34dec243
KH		 1045 tmp = 0xEB;
1046 if (var->sync & FB_SYNC_HOR_HIGH_ACT)
1047 tmp &= ~0x40;
1048 if (var->sync & FB_SYNC_VERT_HIGH_ACT)
1049 tmp &= ~0x80;
1da177e4 1050
6eed8e1e 1051 if (par->flatpanel && var->xres < nativex) {
1da177e4
LT		 1052 /*
1053 * on flat panels with native size larger
1054 * than requested resolution decide whether
1055 * we stretch or center
1056 */
34dec243 1057 t_outb(par, tmp | 0xC0, VGA_MIS_W);
1da177e4 1058
306fa6f6 1059 shadowmode_on(par);
1da177e4 1060
245a2c2c 1061 if (center)
306fa6f6 1062 screen_center(par);
1da177e4 1063 else if (stretch)
306fa6f6 1064 screen_stretch(par);
1da177e4
LT		 1065
1066 } else {
34dec243 1067 t_outb(par, tmp, VGA_MIS_W);
306fa6f6 1068 write3CE(par, CyberControl, 8);
1da177e4
LT		 1069 }
1070
1071 /* vertical timing values */
10172ed6
KH		 1072 write3X4(par, VGA_CRTC_V_TOTAL, vtotal & 0xFF);
1073 write3X4(par, VGA_CRTC_V_DISP_END, vdispend & 0xFF);
1074 write3X4(par, VGA_CRTC_V_SYNC_START, vsyncstart & 0xFF);
1075 write3X4(par, VGA_CRTC_V_SYNC_END, (vsyncend & 0x0F));
1076 write3X4(par, VGA_CRTC_V_BLANK_START, vblankstart & 0xFF);
7f762d23 1077 write3X4(par, VGA_CRTC_V_BLANK_END, vblankend & 0xFF);
1da177e4
LT		 1078
1079 /* horizontal timing values */
10172ed6
KH		 1080 write3X4(par, VGA_CRTC_H_TOTAL, htotal & 0xFF);
1081 write3X4(par, VGA_CRTC_H_DISP, hdispend & 0xFF);
1082 write3X4(par, VGA_CRTC_H_SYNC_START, hsyncstart & 0xFF);
1083 write3X4(par, VGA_CRTC_H_SYNC_END,
306fa6f6 1084 (hsyncend & 0x1F) | ((hblankend & 0x20) << 2));
10172ed6 1085 write3X4(par, VGA_CRTC_H_BLANK_START, hblankstart & 0xFF);
7f762d23 1086 write3X4(par, VGA_CRTC_H_BLANK_END, hblankend & 0x1F);
1da177e4
LT		 1087
1088 /* higher bits of vertical timing values */
1089 tmp = 0x10;
1090 if (vtotal & 0x100) tmp |= 0x01;
1091 if (vdispend & 0x100) tmp |= 0x02;
1092 if (vsyncstart & 0x100) tmp |= 0x04;
1093 if (vblankstart & 0x100) tmp |= 0x08;
1094
1095 if (vtotal & 0x200) tmp |= 0x20;
1096 if (vdispend & 0x200) tmp |= 0x40;
1097 if (vsyncstart & 0x200) tmp |= 0x80;
10172ed6 1098 write3X4(par, VGA_CRTC_OVERFLOW, tmp);
1da177e4 1099
7f762d23
KH		 1100 tmp = read3X4(par, CRTHiOrd) & 0x07;
1101 tmp |= 0x08; /* line compare bit 10 */
1da177e4
LT		 1102 if (vtotal & 0x400) tmp |= 0x80;
1103 if (vblankstart & 0x400) tmp |= 0x40;
1104 if (vsyncstart & 0x400) tmp |= 0x20;
1105 if (vdispend & 0x400) tmp |= 0x10;
306fa6f6 1106 write3X4(par, CRTHiOrd, tmp);
1da177e4 1107
7f762d23
KH		 1108 tmp = (htotal >> 8) & 0x01;
1109 tmp |= (hdispend >> 7) & 0x02;
1110 tmp |= (hsyncstart >> 5) & 0x08;
1111 tmp |= (hblankstart >> 4) & 0x10;
306fa6f6 1112 write3X4(par, HorizOverflow, tmp);
245a2c2c 1113
1da177e4
LT		 1114 tmp = 0x40;
1115 if (vblankstart & 0x200) tmp |= 0x20;
245a2c2c 1116//FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80; /* double scan for 200 line modes */
10172ed6 1117 write3X4(par, VGA_CRTC_MAX_SCAN, tmp);
1da177e4 1118
10172ed6
KH		 1119 write3X4(par, VGA_CRTC_LINE_COMPARE, 0xFF);
1120 write3X4(par, VGA_CRTC_PRESET_ROW, 0);
1121 write3X4(par, VGA_CRTC_MODE, 0xC3);
1da177e4 1122
306fa6f6 1123 write3X4(par, LinearAddReg, 0x20); /* enable linear addressing */
1da177e4 1124
245a2c2c 1125 tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80;
306fa6f6
KH		 1126 /* enable access extended memory */
1127 write3X4(par, CRTCModuleTest, tmp);
34dec243
KH		 1128 tmp = read3CE(par, MiscIntContReg) & ~0x4;
1129 if (info->var.vmode & FB_VMODE_INTERLACED)
1130 tmp |= 0x4;
1131 write3CE(par, MiscIntContReg, tmp);
1da177e4 1132
306fa6f6
KH		 1133 /* enable GE for text acceleration */
1134 write3X4(par, GraphEngReg, 0x80);
1da177e4 1135
1da177e4 1136 switch (bpp) {
245a2c2c
KH		 1137 case 8:
1138 tmp = 0x00;
1139 break;
1140 case 16:
1141 tmp = 0x05;
1142 break;
1143 case 24:
1144 tmp = 0x29;
1145 break;
1146 case 32:
1147 tmp = 0x09;
1148 break;
1da177e4
LT		 1149 }
1150
306fa6f6 1151 write3X4(par, PixelBusReg, tmp);
1da177e4 1152
0e73a47f
KH		 1153 tmp = read3X4(par, DRAMControl);
1154 if (!is_oldprotect(par->chip_id))
1155 tmp |= 0x10;
122e8ad3 1156 if (iscyber(par->chip_id))
245a2c2c 1157 tmp |= 0x20;
306fa6f6 1158 write3X4(par, DRAMControl, tmp); /* both IO, linear enable */
1da177e4 1159
306fa6f6 1160 write3X4(par, InterfaceSel, read3X4(par, InterfaceSel) | 0x40);
0e73a47f
KH		 1161 if (!is_xp(par->chip_id))
1162 write3X4(par, Performance, read3X4(par, Performance) | 0x10);
306fa6f6 1163 /* MMIO & PCI read and write burst enable */
13b0de49 1164 if (par->chip_id != TGUI9440 && par->chip_id != IMAGE975)
a0d92256 1165 write3X4(par, PCIReg, read3X4(par, PCIReg) | 0x06);
1da177e4 1166
10172ed6
KH		 1167 vga_mm_wseq(par->io_virt, 0, 3);
1168 vga_mm_wseq(par->io_virt, 1, 1); /* set char clock 8 dots wide */
306fa6f6 1169 /* enable 4 maps because needed in chain4 mode */
10172ed6
KH		 1170 vga_mm_wseq(par->io_virt, 2, 0x0F);
1171 vga_mm_wseq(par->io_virt, 3, 0);
1172 vga_mm_wseq(par->io_virt, 4, 0x0E); /* memory mode enable bitmaps ?? */
1da177e4 1173
54f019e5
KH		 1174 /* convert from picoseconds to kHz */
1175 vclk = PICOS2KHZ(info->var.pixclock);
1176
306fa6f6 1177 /* divide clock by 2 if 32bpp chain4 mode display and CPU path */
65e93e03 1178 tmp = read3CE(par, MiscExtFunc) & 0xF0;
54f019e5 1179 if (bpp == 32 || (par->chip_id == TGUI9440 && bpp == 16)) {
65e93e03 1180 tmp |= 8;
54f019e5
KH		 1181 vclk *= 2;
1182 }
1183 set_vclk(par, vclk);
65e93e03 1184 write3CE(par, MiscExtFunc, tmp | 0x12);
306fa6f6
KH		 1185 write3CE(par, 0x5, 0x40); /* no CGA compat, allow 256 col */
1186 write3CE(par, 0x6, 0x05); /* graphics mode */
1187 write3CE(par, 0x7, 0x0F); /* planes? */
1da177e4 1188
306fa6f6
KH		 1189 /* graphics mode and support 256 color modes */
1190 writeAttr(par, 0x10, 0x41);
1191 writeAttr(par, 0x12, 0x0F); /* planes */
1192 writeAttr(par, 0x13, 0); /* horizontal pel panning */
1da177e4 1193
245a2c2c
KH		 1194 /* colors */
1195 for (tmp = 0; tmp < 0x10; tmp++)
306fa6f6 1196 writeAttr(par, tmp, tmp);
10172ed6
KH		 1197 fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */
1198 t_outb(par, 0x20, VGA_ATT_W); /* enable attr */
1da177e4
LT		 1199
1200 switch (bpp) {
245a2c2c
KH		 1201 case 8:
1202 tmp = 0;
1203 break;
245a2c2c
KH		 1204 case 16:
1205 tmp = 0x30;
1206 break;
1207 case 24:
1208 case 32:
1209 tmp = 0xD0;
1210 break;
1da177e4
LT		 1211 }
1212
10172ed6
KH		 1213 t_inb(par, VGA_PEL_IW);
1214 t_inb(par, VGA_PEL_MSK);
1215 t_inb(par, VGA_PEL_MSK);
1216 t_inb(par, VGA_PEL_MSK);
1217 t_inb(par, VGA_PEL_MSK);
1218 t_outb(par, tmp, VGA_PEL_MSK);
1219 t_inb(par, VGA_PEL_IW);
1da177e4 1220
6eed8e1e 1221 if (par->flatpanel)
306fa6f6 1222 set_number_of_lines(par, info->var.yres);
bcac2d5f
KH		 1223 info->fix.line_length = info->var.xres_virtual * bpp / 8;
1224 set_lwidth(par, info->fix.line_length / 8);
01a2d9ed
KH		 1225
1226 if (!(info->flags & FBINFO_HWACCEL_DISABLED))
1227 par->init_accel(par, info->var.xres_virtual, bpp);
2c86a0c2 1228
1da177e4 1229 info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
245a2c2c 1230 info->cmap.len = (bpp == 8) ? 256 : 16;
1da177e4
LT		 1231 debug("exit\n");
1232 return 0;
1233}
1234
1235/* Set one color register */
1236static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green,
245a2c2c
KH		 1237 unsigned blue, unsigned transp,
1238 struct fb_info *info)
1da177e4
LT		 1239{
1240 int bpp = info->var.bits_per_pixel;
306fa6f6 1241 struct tridentfb_par *par = info->par;
1da177e4
LT		 1242
1243 if (regno >= info->cmap.len)
1244 return 1;
1245
973d9ab2 1246 if (bpp == 8) {
10172ed6
KH		 1247 t_outb(par, 0xFF, VGA_PEL_MSK);
1248 t_outb(par, regno, VGA_PEL_IW);
1da177e4 1249
10172ed6
KH		 1250 t_outb(par, red >> 10, VGA_PEL_D);
1251 t_outb(par, green >> 10, VGA_PEL_D);
1252 t_outb(par, blue >> 10, VGA_PEL_D);
1da177e4 1253
973d9ab2
AD		 1254 } else if (regno < 16) {
1255 if (bpp == 16) { /* RGB 565 */
1256 u32 col;
1257
1258 col = (red & 0xF800) | ((green & 0xFC00) >> 5) |
1259 ((blue & 0xF800) >> 11);
1260 col |= col << 16;
1261 ((u32 *)(info->pseudo_palette))[regno] = col;
1262 } else if (bpp == 32) /* ARGB 8888 */
5cf13845 1263 ((u32 *)info->pseudo_palette)[regno] =
245a2c2c
KH		 1264 ((transp & 0xFF00) << 16) |
1265 ((red & 0xFF00) << 8) |
973d9ab2 1266 ((green & 0xFF00)) |
245a2c2c 1267 ((blue & 0xFF00) >> 8);
973d9ab2 1268 }
1da177e4 1269
1da177e4
LT		 1270 return 0;
1271}
1272
5cf13845 1273/* Try blanking the screen. For flat panels it does nothing */
1da177e4
LT		 1274static int tridentfb_blank(int blank_mode, struct fb_info *info)
1275{
245a2c2c 1276 unsigned char PMCont, DPMSCont;
306fa6f6 1277 struct tridentfb_par *par = info->par;
1da177e4
LT		 1278
1279 debug("enter\n");
6eed8e1e 1280 if (par->flatpanel)
1da177e4 1281 return 0;
306fa6f6
KH		 1282 t_outb(par, 0x04, 0x83C8); /* Read DPMS Control */
1283 PMCont = t_inb(par, 0x83C6) & 0xFC;
1284 DPMSCont = read3CE(par, PowerStatus) & 0xFC;
245a2c2c 1285 switch (blank_mode) {
1da177e4
LT		 1286 case FB_BLANK_UNBLANK:
1287 /* Screen: On, HSync: On, VSync: On */
1288 case FB_BLANK_NORMAL:
1289 /* Screen: Off, HSync: On, VSync: On */
1290 PMCont |= 0x03;
1291 DPMSCont |= 0x00;
1292 break;
1293 case FB_BLANK_HSYNC_SUSPEND:
1294 /* Screen: Off, HSync: Off, VSync: On */
1295 PMCont |= 0x02;
1296 DPMSCont |= 0x01;
1297 break;
1298 case FB_BLANK_VSYNC_SUSPEND:
1299 /* Screen: Off, HSync: On, VSync: Off */
1300 PMCont |= 0x02;
1301 DPMSCont |= 0x02;
1302 break;
1303 case FB_BLANK_POWERDOWN:
1304 /* Screen: Off, HSync: Off, VSync: Off */
1305 PMCont |= 0x00;
1306 DPMSCont |= 0x03;
1307 break;
245a2c2c 1308 }
1da177e4 1309
306fa6f6
KH		 1310 write3CE(par, PowerStatus, DPMSCont);
1311 t_outb(par, 4, 0x83C8);
1312 t_outb(par, PMCont, 0x83C6);
1da177e4
LT		 1313
1314 debug("exit\n");
1315
1316 /* let fbcon do a softblank for us */
1317 return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0;
1318}
1319
245a2c2c
KH		 1320static struct fb_ops tridentfb_ops = {
1321 .owner = THIS_MODULE,
1322 .fb_setcolreg = tridentfb_setcolreg,
1323 .fb_pan_display = tridentfb_pan_display,
1324 .fb_blank = tridentfb_blank,
1325 .fb_check_var = tridentfb_check_var,
1326 .fb_set_par = tridentfb_set_par,
1327 .fb_fillrect = tridentfb_fillrect,
1328 .fb_copyarea = tridentfb_copyarea,
0292be4a 1329 .fb_imageblit = tridentfb_imageblit,
49b1f4b4 1330 .fb_sync = tridentfb_sync,
245a2c2c
KH		 1331};
1332
e09ed099
KH		 1333static int __devinit trident_pci_probe(struct pci_dev *dev,
1334 const struct pci_device_id *id)
1da177e4
LT		 1335{
1336 int err;
1337 unsigned char revision;
e09ed099
KH		 1338 struct fb_info *info;
1339 struct tridentfb_par *default_par;
122e8ad3
KH		 1340 int chip3D;
1341 int chip_id;
1da177e4
LT		 1342
1343 err = pci_enable_device(dev);
1344 if (err)
1345 return err;
1346
e09ed099
KH		 1347 info = framebuffer_alloc(sizeof(struct tridentfb_par), &dev->dev);
1348 if (!info)
1349 return -ENOMEM;
1350 default_par = info->par;
1351
1da177e4
LT		 1352 chip_id = id->device;
1353
1354 /* If PCI id is 0x9660 then further detect chip type */
245a2c2c 1355
1da177e4 1356 if (chip_id == TGUI9660) {
10172ed6 1357 revision = vga_io_rseq(RevisionID);
245a2c2c 1358
1da177e4 1359 switch (revision) {
0e73a47f
KH		 1360 case 0x21:
1361 chip_id = PROVIDIA9685;
1362 break;
245a2c2c
KH		 1363 case 0x22:
1364 case 0x23:
1365 chip_id = CYBER9397;
1366 break;
1367 case 0x2A:
1368 chip_id = CYBER9397DVD;
1369 break;
1370 case 0x30:
1371 case 0x33:
1372 case 0x34:
1373 case 0x35:
1374 case 0x38:
1375 case 0x3A:
1376 case 0xB3:
1377 chip_id = CYBER9385;
1378 break;
1379 case 0x40 ... 0x43:
1380 chip_id = CYBER9382;
1381 break;
1382 case 0x4A:
1383 chip_id = CYBER9388;
1384 break;
1385 default:
1386 break;
1da177e4
LT		 1387 }
1388 }
1389
1390 chip3D = is3Dchip(chip_id);
1da177e4
LT		 1391
1392 if (is_xp(chip_id)) {
d9cad04b
KH		 1393 default_par->init_accel = xp_init_accel;
1394 default_par->wait_engine = xp_wait_engine;
1395 default_par->fill_rect = xp_fill_rect;
1396 default_par->copy_rect = xp_copy_rect;
01a2d9ed 1397 tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADEXP;
245a2c2c 1398 } else if (is_blade(chip_id)) {
d9cad04b
KH		 1399 default_par->init_accel = blade_init_accel;
1400 default_par->wait_engine = blade_wait_engine;
1401 default_par->fill_rect = blade_fill_rect;
1402 default_par->copy_rect = blade_copy_rect;
0292be4a 1403 default_par->image_blit = blade_image_blit;
01a2d9ed 1404 tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADE3D;
bcac2d5f 1405 } else if (chip3D) { /* 3DImage family left */
d9cad04b
KH		 1406 default_par->init_accel = image_init_accel;
1407 default_par->wait_engine = image_wait_engine;
1408 default_par->fill_rect = image_fill_rect;
1409 default_par->copy_rect = image_copy_rect;
01a2d9ed 1410 tridentfb_fix.accel = FB_ACCEL_TRIDENT_3DIMAGE;
bcac2d5f
KH		 1411 } else { /* TGUI 9440/96XX family */
1412 default_par->init_accel = tgui_init_accel;
1413 default_par->wait_engine = xp_wait_engine;
1414 default_par->fill_rect = tgui_fill_rect;
1415 default_par->copy_rect = tgui_copy_rect;
01a2d9ed 1416 tridentfb_fix.accel = FB_ACCEL_TRIDENT_TGUI;
1da177e4
LT		 1417 }
1418
122e8ad3
KH		 1419 default_par->chip_id = chip_id;
1420
1da177e4 1421 /* setup MMIO region */
245a2c2c 1422 tridentfb_fix.mmio_start = pci_resource_start(dev, 1);
5cf13845 1423 tridentfb_fix.mmio_len = pci_resource_len(dev, 1);
1da177e4 1424
5cf13845
KH		 1425 if (!request_mem_region(tridentfb_fix.mmio_start,
1426 tridentfb_fix.mmio_len, "tridentfb")) {
1da177e4 1427 debug("request_region failed!\n");
3876ae8b 1428 framebuffer_release(info);
1da177e4
LT		 1429 return -1;
1430 }
1431
e09ed099
KH		 1432 default_par->io_virt = ioremap_nocache(tridentfb_fix.mmio_start,
1433 tridentfb_fix.mmio_len);
1da177e4 1434
e09ed099 1435 if (!default_par->io_virt) {
1da177e4 1436 debug("ioremap failed\n");
e8ed857c
KH		 1437 err = -1;
1438 goto out_unmap1;
1da177e4
LT		 1439 }
1440
13b0de49 1441 enable_mmio(default_par);
bcac2d5f 1442
1da177e4 1443 /* setup framebuffer memory */
245a2c2c 1444 tridentfb_fix.smem_start = pci_resource_start(dev, 0);
e09ed099 1445 tridentfb_fix.smem_len = get_memsize(default_par);
245a2c2c 1446
5cf13845
KH		 1447 if (!request_mem_region(tridentfb_fix.smem_start,
1448 tridentfb_fix.smem_len, "tridentfb")) {
1da177e4 1449 debug("request_mem_region failed!\n");
e09ed099 1450 disable_mmio(info->par);
a02f6402 1451 err = -1;
e8ed857c 1452 goto out_unmap1;
1da177e4
LT		 1453 }
1454
e09ed099
KH		 1455 info->screen_base = ioremap_nocache(tridentfb_fix.smem_start,
1456 tridentfb_fix.smem_len);
1da177e4 1457
e09ed099 1458 if (!info->screen_base) {
1da177e4 1459 debug("ioremap failed\n");
a02f6402 1460 err = -1;
e8ed857c 1461 goto out_unmap2;
1da177e4
LT		 1462 }
1463
6eed8e1e 1464 default_par->flatpanel = is_flatpanel(default_par);
1da177e4 1465
6eed8e1e 1466 if (default_par->flatpanel)
e09ed099 1467 nativex = get_nativex(default_par);
1da177e4 1468
e09ed099
KH		 1469 info->fix = tridentfb_fix;
1470 info->fbops = &tridentfb_ops;
aa0aa8ab 1471 info->pseudo_palette = default_par->pseudo_pal;
1da177e4 1472
e09ed099 1473 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
01a2d9ed
KH		 1474 if (!noaccel && default_par->init_accel) {
1475 info->flags &= ~FBINFO_HWACCEL_DISABLED;
1476 info->flags |= FBINFO_HWACCEL_COPYAREA;
1477 info->flags |= FBINFO_HWACCEL_FILLRECT;
1478 } else
1479 info->flags |= FBINFO_HWACCEL_DISABLED;
1480
ddb53d48
KH		 1481 if (is_blade(chip_id) && chip_id != BLADE3D)
1482 info->flags |= FBINFO_READS_FAST;
1483
0292be4a
KH		 1484 info->pixmap.addr = kmalloc(4096, GFP_KERNEL);
1485 if (!info->pixmap.addr) {
1486 err = -ENOMEM;
1487 goto out_unmap2;
1488 }
1489
1490 info->pixmap.size = 4096;
1491 info->pixmap.buf_align = 4;
1492 info->pixmap.scan_align = 1;
1493 info->pixmap.access_align = 32;
1494 info->pixmap.flags = FB_PIXMAP_SYSTEM;
1495
1496 if (default_par->image_blit) {
1497 info->flags |= FBINFO_HWACCEL_IMAGEBLIT;
1498 info->pixmap.scan_align = 4;
1499 }
1500
1501 if (noaccel) {
1502 printk(KERN_DEBUG "disabling acceleration\n");
1503 info->flags |= FBINFO_HWACCEL_DISABLED;
1504 info->pixmap.scan_align = 1;
1505 }
1506
ea8ee55c 1507 if (!fb_find_mode(&info->var, info,
07f41e45 1508 mode_option, NULL, 0, NULL, bpp)) {
a02f6402 1509 err = -EINVAL;
e8ed857c 1510 goto out_unmap2;
a02f6402 1511 }
e09ed099 1512 err = fb_alloc_cmap(&info->cmap, 256, 0);
e8ed857c
KH		 1513 if (err < 0)
1514 goto out_unmap2;
1515
ea8ee55c 1516 info->var.activate |= FB_ACTIVATE_NOW;
e09ed099
KH		 1517 info->device = &dev->dev;
1518 if (register_framebuffer(info) < 0) {
5cf13845 1519 printk(KERN_ERR "tridentfb: could not register framebuffer\n");
e09ed099 1520 fb_dealloc_cmap(&info->cmap);
a02f6402 1521 err = -EINVAL;
e8ed857c 1522 goto out_unmap2;
1da177e4
LT		 1523 }
1524 output("fb%d: %s frame buffer device %dx%d-%dbpp\n",
ea8ee55c
KH		 1525 info->node, info->fix.id, info->var.xres,
1526 info->var.yres, info->var.bits_per_pixel);
e09ed099
KH		 1527
1528 pci_set_drvdata(dev, info);
1da177e4 1529 return 0;
a02f6402 1530
e8ed857c 1531out_unmap2:
0292be4a 1532 kfree(info->pixmap.addr);
e09ed099
KH		 1533 if (info->screen_base)
1534 iounmap(info->screen_base);
e8ed857c 1535 release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
e09ed099 1536 disable_mmio(info->par);
e8ed857c 1537out_unmap1:
e09ed099
KH		 1538 if (default_par->io_virt)
1539 iounmap(default_par->io_virt);
e8ed857c 1540 release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
e09ed099 1541 framebuffer_release(info);
a02f6402 1542 return err;
1da177e4
LT		 1543}
1544
245a2c2c 1545static void __devexit trident_pci_remove(struct pci_dev *dev)
1da177e4 1546{
e09ed099
KH		 1547 struct fb_info *info = pci_get_drvdata(dev);
1548 struct tridentfb_par *par = info->par;
1549
1550 unregister_framebuffer(info);
1da177e4 1551 iounmap(par->io_virt);
e09ed099 1552 iounmap(info->screen_base);
1da177e4 1553 release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
e8ed857c 1554 release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
e09ed099 1555 pci_set_drvdata(dev, NULL);
0292be4a 1556 kfree(info->pixmap.addr);
07b39b49 1557 fb_dealloc_cmap(&info->cmap);
e09ed099 1558 framebuffer_release(info);
1da177e4
LT		 1559}
1560
1561/* List of boards that we are trying to support */
1562static struct pci_device_id trident_devices[] = {
245a2c2c
KH		 1563 {PCI_VENDOR_ID_TRIDENT, BLADE3D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1564 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1565 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1566 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1567 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1568 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1569 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1570 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEE4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
a0d92256 1571 {PCI_VENDOR_ID_TRIDENT, TGUI9440, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
245a2c2c
KH		 1572 {PCI_VENDOR_ID_TRIDENT, TGUI9660, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1573 {PCI_VENDOR_ID_TRIDENT, IMAGE975, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1574 {PCI_VENDOR_ID_TRIDENT, IMAGE985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1575 {PCI_VENDOR_ID_TRIDENT, CYBER9320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1576 {PCI_VENDOR_ID_TRIDENT, CYBER9388, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1577 {PCI_VENDOR_ID_TRIDENT, CYBER9520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1578 {PCI_VENDOR_ID_TRIDENT, CYBER9525DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1579 {PCI_VENDOR_ID_TRIDENT, CYBER9397, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1580 {PCI_VENDOR_ID_TRIDENT, CYBER9397DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1581 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1582 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1583 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm16, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1da177e4 1584 {0,}
245a2c2c
KH		 1585};
1586
1587MODULE_DEVICE_TABLE(pci, trident_devices);
1da177e4
LT		 1588
1589static struct pci_driver tridentfb_pci_driver = {
245a2c2c
KH		 1590 .name = "tridentfb",
1591 .id_table = trident_devices,
1592 .probe = trident_pci_probe,
1593 .remove = __devexit_p(trident_pci_remove)
1da177e4
LT		 1594};
1595
1596/*
1597 * Parse user specified options (`video=trident:')
1598 * example:
245a2c2c 1599 * video=trident:800x600,bpp=16,noaccel
1da177e4
LT		 1600 */
1601#ifndef MODULE
07f41e45 1602static int __init tridentfb_setup(char *options)
1da177e4 1603{
245a2c2c 1604 char *opt;
1da177e4
LT		 1605 if (!options || !*options)
1606 return 0;
245a2c2c
KH		 1607 while ((opt = strsep(&options, ",")) != NULL) {
1608 if (!*opt)
1609 continue;
1610 if (!strncmp(opt, "noaccel", 7))
1da177e4 1611 noaccel = 1;
245a2c2c 1612 else if (!strncmp(opt, "fp", 2))
6eed8e1e 1613 fp = 1;
245a2c2c 1614 else if (!strncmp(opt, "crt", 3))
6eed8e1e 1615 fp = 0;
245a2c2c
KH		 1616 else if (!strncmp(opt, "bpp=", 4))
1617 bpp = simple_strtoul(opt + 4, NULL, 0);
1618 else if (!strncmp(opt, "center", 6))
1da177e4 1619 center = 1;
245a2c2c 1620 else if (!strncmp(opt, "stretch", 7))
1da177e4 1621 stretch = 1;
245a2c2c
KH		 1622 else if (!strncmp(opt, "memsize=", 8))
1623 memsize = simple_strtoul(opt + 8, NULL, 0);
1624 else if (!strncmp(opt, "memdiff=", 8))
1625 memdiff = simple_strtoul(opt + 8, NULL, 0);
1626 else if (!strncmp(opt, "nativex=", 8))
1627 nativex = simple_strtoul(opt + 8, NULL, 0);
1da177e4 1628 else
07f41e45 1629 mode_option = opt;
1da177e4
LT		 1630 }
1631 return 0;
1632}
1633#endif
1634
1635static int __init tridentfb_init(void)
1636{
1637#ifndef MODULE
1638 char *option = NULL;
1639
1640 if (fb_get_options("tridentfb", &option))
1641 return -ENODEV;
1642 tridentfb_setup(option);
1643#endif
1da177e4
LT		 1644 return pci_register_driver(&tridentfb_pci_driver);
1645}
1646
1647static void __exit tridentfb_exit(void)
1648{
1649 pci_unregister_driver(&tridentfb_pci_driver);
1650}
1651
1da177e4
LT		 1652module_init(tridentfb_init);
1653module_exit(tridentfb_exit);
1654
1655MODULE_AUTHOR("Jani Monoses <jani@iv.ro>");
1656MODULE_DESCRIPTION("Framebuffer driver for Trident cards");
1657MODULE_LICENSE("GPL");
ddb53d48 1658MODULE_ALIAS("cyblafb");
1da177e4 1659
Linux 6.x block layer and io_uring tree(s)