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Linux-2.6.12-rc2
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / video / tdfxfb.c
blobc34ba39b6f7e7c23714ea4e1ad7888ae3288c459
1 /*
2 *
3 * tdfxfb.c
4 *
5 * Author: Hannu Mallat <hmallat@cc.hut.fi>
6 *
7 * Copyright © 1999 Hannu Mallat
8 * All rights reserved
9 *
10 * Created : Thu Sep 23 18:17:43 1999, hmallat
11 * Last modified: Tue Nov 2 21:19:47 1999, hmallat
12 *
13 * Lots of the information here comes from the Daryll Strauss' Banshee
14 * patches to the XF86 server, and the rest comes from the 3dfx
15 * Banshee specification. I'm very much indebted to Daryll for his
16 * work on the X server.
17 *
18 * Voodoo3 support was contributed Harold Oga. Lots of additions
19 * (proper acceleration, 24 bpp, hardware cursor) and bug fixes by Attila
20 * Kesmarki. Thanks guys!
21 *
22 * Voodoo1 and Voodoo2 support aren't relevant to this driver as they
23 * behave very differently from the Voodoo3/4/5. For anyone wanting to
24 * use frame buffer on the Voodoo1/2, see the sstfb driver (which is
25 * located at http://www.sourceforge.net/projects/sstfb).
26 *
27 * While I _am_ grateful to 3Dfx for releasing the specs for Banshee,
28 * I do wish the next version is a bit more complete. Without the XF86
29 * patches I couldn't have gotten even this far... for instance, the
30 * extensions to the VGA register set go completely unmentioned in the
31 * spec! Also, lots of references are made to the 'SST core', but no
32 * spec is publicly available, AFAIK.
33 *
34 * The structure of this driver comes pretty much from the Permedia
35 * driver by Ilario Nardinocchi, which in turn is based on skeletonfb.
36 *
37 * TODO:
38 * - support for 16/32 bpp needs fixing (funky bootup penguin)
39 * - multihead support (basically need to support an array of fb_infos)
40 * - support other architectures (PPC, Alpha); does the fact that the VGA
41 * core can be accessed only thru I/O (not memory mapped) complicate
42 * things?
43 *
44 * Version history:
45 *
46 * 0.1.4 (released 2002-05-28) ported over to new fbdev api by James Simmons
47 *
48 * 0.1.3 (released 1999-11-02) added Attila's panning support, code
49 * reorg, hwcursor address page size alignment
50 * (for mmaping both frame buffer and regs),
51 * and my changes to get rid of hardcoded
52 * VGA i/o register locations (uses PCI
53 * configuration info now)
54 * 0.1.2 (released 1999-10-19) added Attila Kesmarki's bug fixes and
55 * improvements
56 * 0.1.1 (released 1999-10-07) added Voodoo3 support by Harold Oga.
57 * 0.1.0 (released 1999-10-06) initial version
58 *
59 */
60
61 #include <linux/config.h>
62 #include <linux/module.h>
63 #include <linux/kernel.h>
64 #include <linux/errno.h>
65 #include <linux/string.h>
66 #include <linux/mm.h>
67 #include <linux/tty.h>
68 #include <linux/slab.h>
69 #include <linux/delay.h>
70 #include <linux/interrupt.h>
71 #include <linux/fb.h>
72 #include <linux/init.h>
73 #include <linux/pci.h>
74 #include <linux/nvram.h>
75 #include <asm/io.h>
76 #include <linux/timer.h>
77 #include <linux/spinlock.h>
78
79 #include <video/tdfx.h>
80
81 #undef TDFXFB_DEBUG
82 #ifdef TDFXFB_DEBUG
83 #define DPRINTK(a,b...) printk(KERN_DEBUG "fb: %s: " a, __FUNCTION__ , ## b)
84 #else
85 #define DPRINTK(a,b...)
86 #endif
87
88 #define BANSHEE_MAX_PIXCLOCK 270000
89 #define VOODOO3_MAX_PIXCLOCK 300000
90 #define VOODOO5_MAX_PIXCLOCK 350000
91
92 static struct fb_fix_screeninfo tdfx_fix __devinitdata = {
93 .id = "3Dfx",
94 .type = FB_TYPE_PACKED_PIXELS,
95 .visual = FB_VISUAL_PSEUDOCOLOR,
96 .ypanstep = 1,
97 .ywrapstep = 1,
98 .accel = FB_ACCEL_3DFX_BANSHEE
99 };
100
101 static struct fb_var_screeninfo tdfx_var __devinitdata = {
102 /* "640x480, 8 bpp @ 60 Hz */
103 .xres = 640,
104 .yres = 480,
105 .xres_virtual = 640,
106 .yres_virtual = 1024,
107 .bits_per_pixel =8,
108 .red = {0, 8, 0},
109 .blue = {0, 8, 0},
110 .green = {0, 8, 0},
111 .activate = FB_ACTIVATE_NOW,
112 .height = -1,
113 .width = -1,
114 .accel_flags = FB_ACCELF_TEXT,
115 .pixclock = 39722,
116 .left_margin = 40,
117 .right_margin = 24,
118 .upper_margin = 32,
119 .lower_margin = 11,
120 .hsync_len = 96,
121 .vsync_len = 2,
122 .vmode = FB_VMODE_NONINTERLACED
123 };
124
125 /*
126 * PCI driver prototypes
127 */
128 static int __devinit tdfxfb_probe(struct pci_dev *pdev,
129 const struct pci_device_id *id);
130 static void __devexit tdfxfb_remove(struct pci_dev *pdev);
131
132 static struct pci_device_id tdfxfb_id_table[] = {
133 { PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_BANSHEE,
134 PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16,
135 0xff0000, 0 },
136 { PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_VOODOO3,
137 PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16,
138 0xff0000, 0 },
139 { PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_VOODOO5,
140 PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16,
141 0xff0000, 0 },
142 { 0, }
143 };
144
145 static struct pci_driver tdfxfb_driver = {
146 .name = "tdfxfb",
147 .id_table = tdfxfb_id_table,
148 .probe = tdfxfb_probe,
149 .remove = __devexit_p(tdfxfb_remove),
150 };
151
152 MODULE_DEVICE_TABLE(pci, tdfxfb_id_table);
153
154 /*
155 * Frame buffer device API
156 */
157 static int tdfxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fb);
158 static int tdfxfb_set_par(struct fb_info *info);
159 static int tdfxfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
160 u_int transp, struct fb_info *info);
161 static int tdfxfb_blank(int blank, struct fb_info *info);
162 static int tdfxfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info);
163 static int banshee_wait_idle(struct fb_info *info);
164 #ifdef CONFIG_FB_3DFX_ACCEL
165 static void tdfxfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
166 static void tdfxfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
167 static void tdfxfb_imageblit(struct fb_info *info, const struct fb_image *image);
168 #endif /* CONFIG_FB_3DFX_ACCEL */
169
170 static struct fb_ops tdfxfb_ops = {
171 .owner = THIS_MODULE,
172 .fb_check_var = tdfxfb_check_var,
173 .fb_set_par = tdfxfb_set_par,
174 .fb_setcolreg = tdfxfb_setcolreg,
175 .fb_blank = tdfxfb_blank,
176 .fb_pan_display = tdfxfb_pan_display,
177 .fb_sync = banshee_wait_idle,
178 #ifdef CONFIG_FB_3DFX_ACCEL
179 .fb_fillrect = tdfxfb_fillrect,
180 .fb_copyarea = tdfxfb_copyarea,
181 .fb_imageblit = tdfxfb_imageblit,
182 #else
183 .fb_fillrect = cfb_fillrect,
184 .fb_copyarea = cfb_copyarea,
185 .fb_imageblit = cfb_imageblit,
186 #endif
187 .fb_cursor = soft_cursor,
188 };
189
190 /*
191 * do_xxx: Hardware-specific functions
192 */
193 static u32 do_calc_pll(int freq, int *freq_out);
194 static void do_write_regs(struct fb_info *info, struct banshee_reg *reg);
195 static unsigned long do_lfb_size(struct tdfx_par *par, unsigned short);
196
197 /*
198 * Driver data
199 */
200 static int nopan = 0;
201 static int nowrap = 1; // not implemented (yet)
202 static char *mode_option __devinitdata = NULL;
203
204 /* -------------------------------------------------------------------------
205 * Hardware-specific funcions
206 * ------------------------------------------------------------------------- */
207
208 #ifdef VGA_REG_IO
209 static inline u8 vga_inb(struct tdfx_par *par, u32 reg) { return inb(reg); }
210
211 static inline void vga_outb(struct tdfx_par *par, u32 reg, u8 val) { outb(val, reg); }
212 #else
213 static inline u8 vga_inb(struct tdfx_par *par, u32 reg) {
214 return inb(par->iobase + reg - 0x300);
215 }
216 static inline void vga_outb(struct tdfx_par *par, u32 reg, u8 val) {
217 outb(val, par->iobase + reg - 0x300);
218 }
219 #endif
220
221 static inline void gra_outb(struct tdfx_par *par, u32 idx, u8 val) {
222 vga_outb(par, GRA_I, idx); vga_outb(par, GRA_D, val);
223 }
224
225 static inline void seq_outb(struct tdfx_par *par, u32 idx, u8 val) {
226 vga_outb(par, SEQ_I, idx); vga_outb(par, SEQ_D, val);
227 }
228
229 static inline u8 seq_inb(struct tdfx_par *par, u32 idx) {
230 vga_outb(par, SEQ_I, idx); return vga_inb(par, SEQ_D);
231 }
232
233 static inline void crt_outb(struct tdfx_par *par, u32 idx, u8 val) {
234 vga_outb(par, CRT_I, idx); vga_outb(par, CRT_D, val);
235 }
236
237 static inline u8 crt_inb(struct tdfx_par *par, u32 idx) {
238 vga_outb(par, CRT_I, idx); return vga_inb(par, CRT_D);
239 }
240
241 static inline void att_outb(struct tdfx_par *par, u32 idx, u8 val)
242 {
243 unsigned char tmp;
244
245 tmp = vga_inb(par, IS1_R);
246 vga_outb(par, ATT_IW, idx);
247 vga_outb(par, ATT_IW, val);
248 }
249
250 static inline void vga_disable_video(struct tdfx_par *par)
251 {
252 unsigned char s;
253
254 s = seq_inb(par, 0x01) | 0x20;
255 seq_outb(par, 0x00, 0x01);
256 seq_outb(par, 0x01, s);
257 seq_outb(par, 0x00, 0x03);
258 }
259
260 static inline void vga_enable_video(struct tdfx_par *par)
261 {
262 unsigned char s;
263
264 s = seq_inb(par, 0x01) & 0xdf;
265 seq_outb(par, 0x00, 0x01);
266 seq_outb(par, 0x01, s);
267 seq_outb(par, 0x00, 0x03);
268 }
269
270 static inline void vga_enable_palette(struct tdfx_par *par)
271 {
272 vga_inb(par, IS1_R);
273 vga_outb(par, ATT_IW, 0x20);
274 }
275
276 static inline u32 tdfx_inl(struct tdfx_par *par, unsigned int reg)
277 {
278 return readl(par->regbase_virt + reg);
279 }
280
281 static inline void tdfx_outl(struct tdfx_par *par, unsigned int reg, u32 val)
282 {
283 writel(val, par->regbase_virt + reg);
284 }
285
286 static inline void banshee_make_room(struct tdfx_par *par, int size)
287 {
288 /* Note: The Voodoo3's onboard FIFO has 32 slots. This loop
289 * won't quit if you ask for more. */
290 while((tdfx_inl(par, STATUS) & 0x1f) < size-1);
291 }
292
293 static int banshee_wait_idle(struct fb_info *info)
294 {
295 struct tdfx_par *par = (struct tdfx_par *) info->par;
296 int i = 0;
297
298 banshee_make_room(par, 1);
299 tdfx_outl(par, COMMAND_3D, COMMAND_3D_NOP);
300
301 while(1) {
302 i = (tdfx_inl(par, STATUS) & STATUS_BUSY) ? 0 : i + 1;
303 if(i == 3) break;
304 }
305 return 0;
306 }
307
308 /*
309 * Set the color of a palette entry in 8bpp mode
310 */
311 static inline void do_setpalentry(struct tdfx_par *par, unsigned regno, u32 c)
312 {
313 banshee_make_room(par, 2);
314 tdfx_outl(par, DACADDR, regno);
315 tdfx_outl(par, DACDATA, c);
316 }
317
318 static u32 do_calc_pll(int freq, int* freq_out)
319 {
320 int m, n, k, best_m, best_n, best_k, f_cur, best_error;
321 int fref = 14318;
322
323 /* this really could be done with more intelligence --
324 255*63*4 = 64260 iterations is silly */
325 best_error = freq;
326 best_n = best_m = best_k = 0;
327 for (n = 1; n < 256; n++) {
328 for (m = 1; m < 64; m++) {
329 for (k = 0; k < 4; k++) {
330 f_cur = fref*(n + 2)/(m + 2)/(1 << k);
331 if (abs(f_cur - freq) < best_error) {
332 best_error = abs(f_cur-freq);
333 best_n = n;
334 best_m = m;
335 best_k = k;
336 }
337 }
338 }
339 }
340 n = best_n;
341 m = best_m;
342 k = best_k;
343 *freq_out = fref*(n + 2)/(m + 2)/(1 << k);
344 return (n << 8) | (m << 2) | k;
345 }
346
347 static void do_write_regs(struct fb_info *info, struct banshee_reg* reg)
348 {
349 struct tdfx_par *par = (struct tdfx_par *) info->par;
350 int i;
351
352 banshee_wait_idle(info);
353
354 tdfx_outl(par, MISCINIT1, tdfx_inl(par, MISCINIT1) | 0x01);
355
356 crt_outb(par, 0x11, crt_inb(par, 0x11) & 0x7f); /* CRT unprotect */
357
358 banshee_make_room(par, 3);
359 tdfx_outl(par, VGAINIT1, reg->vgainit1 & 0x001FFFFF);
360 tdfx_outl(par, VIDPROCCFG, reg->vidcfg & ~0x00000001);
361 #if 0
362 tdfx_outl(par, PLLCTRL1, reg->mempll);
363 tdfx_outl(par, PLLCTRL2, reg->gfxpll);
364 #endif
365 tdfx_outl(par, PLLCTRL0, reg->vidpll);
366
367 vga_outb(par, MISC_W, reg->misc[0x00] | 0x01);
368
369 for (i = 0; i < 5; i++)
370 seq_outb(par, i, reg->seq[i]);
371
372 for (i = 0; i < 25; i++)
373 crt_outb(par, i, reg->crt[i]);
374
375 for (i = 0; i < 9; i++)
376 gra_outb(par, i, reg->gra[i]);
377
378 for (i = 0; i < 21; i++)
379 att_outb(par, i, reg->att[i]);
380
381 crt_outb(par, 0x1a, reg->ext[0]);
382 crt_outb(par, 0x1b, reg->ext[1]);
383
384 vga_enable_palette(par);
385 vga_enable_video(par);
386
387 banshee_make_room(par, 11);
388 tdfx_outl(par, VGAINIT0, reg->vgainit0);
389 tdfx_outl(par, DACMODE, reg->dacmode);
390 tdfx_outl(par, VIDDESKSTRIDE, reg->stride);
391 tdfx_outl(par, HWCURPATADDR, 0);
392
393 tdfx_outl(par, VIDSCREENSIZE,reg->screensize);
394 tdfx_outl(par, VIDDESKSTART, reg->startaddr);
395 tdfx_outl(par, VIDPROCCFG, reg->vidcfg);
396 tdfx_outl(par, VGAINIT1, reg->vgainit1);
397 tdfx_outl(par, MISCINIT0, reg->miscinit0);
398
399 banshee_make_room(par, 8);
400 tdfx_outl(par, SRCBASE, reg->srcbase);
401 tdfx_outl(par, DSTBASE, reg->dstbase);
402 tdfx_outl(par, COMMANDEXTRA_2D, 0);
403 tdfx_outl(par, CLIP0MIN, 0);
404 tdfx_outl(par, CLIP0MAX, 0x0fff0fff);
405 tdfx_outl(par, CLIP1MIN, 0);
406 tdfx_outl(par, CLIP1MAX, 0x0fff0fff);
407 tdfx_outl(par, SRCXY, 0);
408
409 banshee_wait_idle(info);
410 }
411
412 static unsigned long do_lfb_size(struct tdfx_par *par, unsigned short dev_id)
413 {
414 u32 draminit0 = 0;
415 u32 draminit1 = 0;
416 u32 miscinit1 = 0;
417 u32 lfbsize = 0;
418 int sgram_p = 0;
419
420 draminit0 = tdfx_inl(par, DRAMINIT0);
421 draminit1 = tdfx_inl(par, DRAMINIT1);
422
423 if ((dev_id == PCI_DEVICE_ID_3DFX_BANSHEE) ||
424 (dev_id == PCI_DEVICE_ID_3DFX_VOODOO3)) {
425 sgram_p = (draminit1 & DRAMINIT1_MEM_SDRAM) ? 0 : 1;
426
427 lfbsize = sgram_p ?
428 (((draminit0 & DRAMINIT0_SGRAM_NUM) ? 2 : 1) *
429 ((draminit0 & DRAMINIT0_SGRAM_TYPE) ? 8 : 4) * 1024 * 1024) :
430 16 * 1024 * 1024;
431 } else {
432 /* Voodoo4/5 */
433 u32 chips, psize, banks;
434
435 chips = ((draminit0 & (1 << 26)) == 0) ? 4 : 8;
436 psize = 1 << ((draminit0 & 0x38000000) >> 28);
437 banks = ((draminit0 & (1 << 30)) == 0) ? 2 : 4;
438 lfbsize = chips * psize * banks;
439 lfbsize <<= 20;
440 }
441 /* disable block writes for SDRAM (why?) */
442 miscinit1 = tdfx_inl(par, MISCINIT1);
443 miscinit1 |= sgram_p ? 0 : MISCINIT1_2DBLOCK_DIS;
444 miscinit1 |= MISCINIT1_CLUT_INV;
445
446 banshee_make_room(par, 1);
447 tdfx_outl(par, MISCINIT1, miscinit1);
448 return lfbsize;
449 }
450
451 /* ------------------------------------------------------------------------- */
452
453 static int tdfxfb_check_var(struct fb_var_screeninfo *var,struct fb_info *info)
454 {
455 struct tdfx_par *par = (struct tdfx_par *) info->par;
456 u32 lpitch;
457
458 if (var->bits_per_pixel != 8 && var->bits_per_pixel != 16 &&
459 var->bits_per_pixel != 24 && var->bits_per_pixel != 32) {
460 DPRINTK("depth not supported: %u\n", var->bits_per_pixel);
461 return -EINVAL;
462 }
463
464 if (var->xres != var->xres_virtual)
465 var->xres_virtual = var->xres;
466
467 if (var->yres > var->yres_virtual)
468 var->yres_virtual = var->yres;
469
470 if (var->xoffset) {
471 DPRINTK("xoffset not supported\n");
472 return -EINVAL;
473 }
474
475 /* Banshee doesn't support interlace, but Voodoo4/5 and probably Voodoo3 do. */
476 /* no direct information about device id now? use max_pixclock for this... */
477 if (((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) &&
478 (par->max_pixclock < VOODOO3_MAX_PIXCLOCK)) {
479 DPRINTK("interlace not supported\n");
480 return -EINVAL;
481 }
482
483 var->xres = (var->xres + 15) & ~15; /* could sometimes be 8 */
484 lpitch = var->xres * ((var->bits_per_pixel + 7)>>3);
485
486 if (var->xres < 320 || var->xres > 2048) {
487 DPRINTK("width not supported: %u\n", var->xres);
488 return -EINVAL;
489 }
490
491 if (var->yres < 200 || var->yres > 2048) {
492 DPRINTK("height not supported: %u\n", var->yres);
493 return -EINVAL;
494 }
495
496 if (lpitch * var->yres_virtual > info->fix.smem_len) {
497 var->yres_virtual = info->fix.smem_len/lpitch;
498 if (var->yres_virtual < var->yres) {
499 DPRINTK("no memory for screen (%ux%ux%u)\n",
500 var->xres, var->yres_virtual, var->bits_per_pixel);
501 return -EINVAL;
502 }
503 }
504
505 if (PICOS2KHZ(var->pixclock) > par->max_pixclock) {
506 DPRINTK("pixclock too high (%ldKHz)\n",PICOS2KHZ(var->pixclock));
507 return -EINVAL;
508 }
509
510 switch(var->bits_per_pixel) {
511 case 8:
512 var->red.length = var->green.length = var->blue.length = 8;
513 break;
514 case 16:
515 var->red.offset = 11;
516 var->red.length = 5;
517 var->green.offset = 5;
518 var->green.length = 6;
519 var->blue.offset = 0;
520 var->blue.length = 5;
521 break;
522 case 24:
523 var->red.offset=16;
524 var->green.offset=8;
525 var->blue.offset=0;
526 var->red.length = var->green.length = var->blue.length = 8;
527 case 32:
528 var->red.offset = 16;
529 var->green.offset = 8;
530 var->blue.offset = 0;
531 var->red.length = var->green.length = var->blue.length = 8;
532 break;
533 }
534 var->height = var->width = -1;
535
536 var->accel_flags = FB_ACCELF_TEXT;
537
538 DPRINTK("Checking graphics mode at %dx%d depth %d\n", var->xres, var->yres, var->bits_per_pixel);
539 return 0;
540 }
541
542 static int tdfxfb_set_par(struct fb_info *info)
543 {
544 struct tdfx_par *par = (struct tdfx_par *) info->par;
545 u32 hdispend, hsyncsta, hsyncend, htotal;
546 u32 hd, hs, he, ht, hbs, hbe;
547 u32 vd, vs, ve, vt, vbs, vbe;
548 struct banshee_reg reg;
549 int fout, freq;
550 u32 wd, cpp;
551
552 par->baseline = 0;
553
554 memset(&reg, 0, sizeof(reg));
555 cpp = (info->var.bits_per_pixel + 7)/8;
556
557 reg.vidcfg = VIDCFG_VIDPROC_ENABLE | VIDCFG_DESK_ENABLE | VIDCFG_CURS_X11 | ((cpp - 1) << VIDCFG_PIXFMT_SHIFT) | (cpp != 1 ? VIDCFG_CLUT_BYPASS : 0);
558
559 /* PLL settings */
560 freq = PICOS2KHZ(info->var.pixclock);
561
562 reg.dacmode = 0;
563 reg.vidcfg &= ~VIDCFG_2X;
564
565 hdispend = info->var.xres;
566 hsyncsta = hdispend + info->var.right_margin;
567 hsyncend = hsyncsta + info->var.hsync_len;
568 htotal = hsyncend + info->var.left_margin;
569
570 if (freq > par->max_pixclock/2) {
571 freq = freq > par->max_pixclock ? par->max_pixclock : freq;
572 reg.dacmode |= DACMODE_2X;
573 reg.vidcfg |= VIDCFG_2X;
574 hdispend >>= 1;
575 hsyncsta >>= 1;
576 hsyncend >>= 1;
577 htotal >>= 1;
578 }
579
580 hd = wd = (hdispend >> 3) - 1;
581 hs = (hsyncsta >> 3) - 1;
582 he = (hsyncend >> 3) - 1;
583 ht = (htotal >> 3) - 1;
584 hbs = hd;
585 hbe = ht;
586
587 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
588 vbs = vd = (info->var.yres << 1) - 1;
589 vs = vd + (info->var.lower_margin << 1);
590 ve = vs + (info->var.vsync_len << 1);
591 vbe = vt = ve + (info->var.upper_margin << 1) - 1;
592 } else {
593 vbs = vd = info->var.yres - 1;
594 vs = vd + info->var.lower_margin;
595 ve = vs + info->var.vsync_len;
596 vbe = vt = ve + info->var.upper_margin - 1;
597 }
598
599 /* this is all pretty standard VGA register stuffing */
600 reg.misc[0x00] = 0x0f |
601 (info->var.xres < 400 ? 0xa0 :
602 info->var.xres < 480 ? 0x60 :
603 info->var.xres < 768 ? 0xe0 : 0x20);
604
605 reg.gra[0x00] = 0x00;
606 reg.gra[0x01] = 0x00;
607 reg.gra[0x02] = 0x00;
608 reg.gra[0x03] = 0x00;
609 reg.gra[0x04] = 0x00;
610 reg.gra[0x05] = 0x40;
611 reg.gra[0x06] = 0x05;
612 reg.gra[0x07] = 0x0f;
613 reg.gra[0x08] = 0xff;
614
615 reg.att[0x00] = 0x00;
616 reg.att[0x01] = 0x01;
617 reg.att[0x02] = 0x02;
618 reg.att[0x03] = 0x03;
619 reg.att[0x04] = 0x04;
620 reg.att[0x05] = 0x05;
621 reg.att[0x06] = 0x06;
622 reg.att[0x07] = 0x07;
623 reg.att[0x08] = 0x08;
624 reg.att[0x09] = 0x09;
625 reg.att[0x0a] = 0x0a;
626 reg.att[0x0b] = 0x0b;
627 reg.att[0x0c] = 0x0c;
628 reg.att[0x0d] = 0x0d;
629 reg.att[0x0e] = 0x0e;
630 reg.att[0x0f] = 0x0f;
631 reg.att[0x10] = 0x41;
632 reg.att[0x11] = 0x00;
633 reg.att[0x12] = 0x0f;
634 reg.att[0x13] = 0x00;
635 reg.att[0x14] = 0x00;
636
637 reg.seq[0x00] = 0x03;
638 reg.seq[0x01] = 0x01; /* fixme: clkdiv2? */
639 reg.seq[0x02] = 0x0f;
640 reg.seq[0x03] = 0x00;
641 reg.seq[0x04] = 0x0e;
642
643 reg.crt[0x00] = ht - 4;
644 reg.crt[0x01] = hd;
645 reg.crt[0x02] = hbs;
646 reg.crt[0x03] = 0x80 | (hbe & 0x1f);
647 reg.crt[0x04] = hs;
648 reg.crt[0x05] = ((hbe & 0x20) << 2) | (he & 0x1f);
649 reg.crt[0x06] = vt;
650 reg.crt[0x07] = ((vs & 0x200) >> 2) |
651 ((vd & 0x200) >> 3) |
652 ((vt & 0x200) >> 4) | 0x10 |
653 ((vbs & 0x100) >> 5) |
654 ((vs & 0x100) >> 6) |
655 ((vd & 0x100) >> 7) |
656 ((vt & 0x100) >> 8);
657 reg.crt[0x08] = 0x00;
658 reg.crt[0x09] = 0x40 | ((vbs & 0x200) >> 4);
659 reg.crt[0x0a] = 0x00;
660 reg.crt[0x0b] = 0x00;
661 reg.crt[0x0c] = 0x00;
662 reg.crt[0x0d] = 0x00;
663 reg.crt[0x0e] = 0x00;
664 reg.crt[0x0f] = 0x00;
665 reg.crt[0x10] = vs;
666 reg.crt[0x11] = (ve & 0x0f) | 0x20;
667 reg.crt[0x12] = vd;
668 reg.crt[0x13] = wd;
669 reg.crt[0x14] = 0x00;
670 reg.crt[0x15] = vbs;
671 reg.crt[0x16] = vbe + 1;
672 reg.crt[0x17] = 0xc3;
673 reg.crt[0x18] = 0xff;
674
675 /* Banshee's nonvga stuff */
676 reg.ext[0x00] = (((ht & 0x100) >> 8) |
677 ((hd & 0x100) >> 6) |
678 ((hbs & 0x100) >> 4) |
679 ((hbe & 0x40) >> 1) |
680 ((hs & 0x100) >> 2) |
681 ((he & 0x20) << 2));
682 reg.ext[0x01] = (((vt & 0x400) >> 10) |
683 ((vd & 0x400) >> 8) |
684 ((vbs & 0x400) >> 6) |
685 ((vbe & 0x400) >> 4));
686
687 reg.vgainit0 = VGAINIT0_8BIT_DAC |
688 VGAINIT0_EXT_ENABLE |
689 VGAINIT0_WAKEUP_3C3 |
690 VGAINIT0_ALT_READBACK |
691 VGAINIT0_EXTSHIFTOUT;
692 reg.vgainit1 = tdfx_inl(par, VGAINIT1) & 0x1fffff;
693
694 reg.cursloc = 0;
695
696 reg.cursc0 = 0;
697 reg.cursc1 = 0xffffff;
698
699 reg.stride = info->var.xres * cpp;
700 reg.startaddr = par->baseline * reg.stride;
701 reg.srcbase = reg.startaddr;
702 reg.dstbase = reg.startaddr;
703
704 /* PLL settings */
705 freq = PICOS2KHZ(info->var.pixclock);
706
707 reg.dacmode &= ~DACMODE_2X;
708 reg.vidcfg &= ~VIDCFG_2X;
709 if (freq > par->max_pixclock/2) {
710 freq = freq > par->max_pixclock ? par->max_pixclock : freq;
711 reg.dacmode |= DACMODE_2X;
712 reg.vidcfg |= VIDCFG_2X;
713 }
714 reg.vidpll = do_calc_pll(freq, &fout);
715 #if 0
716 reg.mempll = do_calc_pll(..., &fout);
717 reg.gfxpll = do_calc_pll(..., &fout);
718 #endif
719
720 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
721 reg.screensize = info->var.xres | (info->var.yres << 13);
722 reg.vidcfg |= VIDCFG_HALF_MODE;
723 reg.crt[0x09] |= 0x80;
724 } else {
725 reg.screensize = info->var.xres | (info->var.yres << 12);
726 reg.vidcfg &= ~VIDCFG_HALF_MODE;
727 }
728 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)
729 reg.vidcfg |= VIDCFG_INTERLACE;
730 reg.miscinit0 = tdfx_inl(par, MISCINIT0);
731
732 #if defined(__BIG_ENDIAN)
733 switch (info->var.bits_per_pixel) {
734 case 8:
735 case 24:
736 reg.miscinit0 &= ~(1 << 30);
737 reg.miscinit0 &= ~(1 << 31);
738 break;
739 case 16:
740 reg.miscinit0 |= (1 << 30);
741 reg.miscinit0 |= (1 << 31);
742 break;
743 case 32:
744 reg.miscinit0 |= (1 << 30);
745 reg.miscinit0 &= ~(1 << 31);
746 break;
747 }
748 #endif
749 do_write_regs(info, &reg);
750
751 /* Now change fb_fix_screeninfo according to changes in par */
752 info->fix.line_length = info->var.xres * ((info->var.bits_per_pixel + 7)>>3);
753 info->fix.visual = (info->var.bits_per_pixel == 8)
754 ? FB_VISUAL_PSEUDOCOLOR
755 : FB_VISUAL_TRUECOLOR;
756 DPRINTK("Graphics mode is now set at %dx%d depth %d\n", info->var.xres, info->var.yres, info->var.bits_per_pixel);
757 return 0;
758 }
759
760 /* A handy macro shamelessly pinched from matroxfb */
761 #define CNVT_TOHW(val,width) ((((val)<<(width))+0x7FFF-(val))>>16)
762
763 static int tdfxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
764 unsigned blue,unsigned transp,struct fb_info *info)
765 {
766 struct tdfx_par *par = (struct tdfx_par *) info->par;
767 u32 rgbcol;
768
769 if (regno >= info->cmap.len || regno > 255) return 1;
770
771 switch (info->fix.visual) {
772 case FB_VISUAL_PSEUDOCOLOR:
773 rgbcol =(((u32)red & 0xff00) << 8) |
774 (((u32)green & 0xff00) << 0) |
775 (((u32)blue & 0xff00) >> 8);
776 do_setpalentry(par, regno, rgbcol);
777 break;
778 /* Truecolor has no hardware color palettes. */
779 case FB_VISUAL_TRUECOLOR:
780 rgbcol = (CNVT_TOHW( red, info->var.red.length) << info->var.red.offset) |
781 (CNVT_TOHW( green, info->var.green.length) << info->var.green.offset) |
782 (CNVT_TOHW( blue, info->var.blue.length) << info->var.blue.offset) |
783 (CNVT_TOHW( transp, info->var.transp.length) << info->var.transp.offset);
784 ((u32*)(info->pseudo_palette))[regno] = rgbcol;
785 break;
786 default:
787 DPRINTK("bad depth %u\n", info->var.bits_per_pixel);
788 break;
789 }
790 return 0;
791 }
792
793 /* 0 unblank, 1 blank, 2 no vsync, 3 no hsync, 4 off */
794 static int tdfxfb_blank(int blank, struct fb_info *info)
795 {
796 struct tdfx_par *par = (struct tdfx_par *) info->par;
797 u32 dacmode, state = 0, vgablank = 0;
798
799 dacmode = tdfx_inl(par, DACMODE);
800
801 switch (blank) {
802 case FB_BLANK_UNBLANK: /* Screen: On; HSync: On, VSync: On */
803 state = 0;
804 vgablank = 0;
805 break;
806 case FB_BLANK_NORMAL: /* Screen: Off; HSync: On, VSync: On */
807 state = 0;
808 vgablank = 1;
809 break;
810 case FB_BLANK_VSYNC_SUSPEND: /* Screen: Off; HSync: On, VSync: Off */
811 state = BIT(3);
812 vgablank = 1;
813 break;
814 case FB_BLANK_HSYNC_SUSPEND: /* Screen: Off; HSync: Off, VSync: On */
815 state = BIT(1);
816 vgablank = 1;
817 break;
818 case FB_BLANK_POWERDOWN: /* Screen: Off; HSync: Off, VSync: Off */
819 state = BIT(1) | BIT(3);
820 vgablank = 1;
821 break;
822 }
823
824 dacmode &= ~(BIT(1) | BIT(3));
825 dacmode |= state;
826 banshee_make_room(par, 1);
827 tdfx_outl(par, DACMODE, dacmode);
828 if (vgablank)
829 vga_disable_video(par);
830 else
831 vga_enable_video(par);
832 return 0;
833 }
834
835 /*
836 * Set the starting position of the visible screen to var->yoffset
837 */
838 static int tdfxfb_pan_display(struct fb_var_screeninfo *var,
839 struct fb_info *info)
840 {
841 struct tdfx_par *par = (struct tdfx_par *) info->par;
842 u32 addr;
843
844 if (nopan || var->xoffset || (var->yoffset > var->yres_virtual))
845 return -EINVAL;
846 if ((var->yoffset + var->yres > var->yres_virtual && nowrap))
847 return -EINVAL;
848
849 addr = var->yoffset * info->fix.line_length;
850 banshee_make_room(par, 1);
851 tdfx_outl(par, VIDDESKSTART, addr);
852
853 info->var.xoffset = var->xoffset;
854 info->var.yoffset = var->yoffset;
855 return 0;
856 }
857
858 #ifdef CONFIG_FB_3DFX_ACCEL
859 /*
860 * FillRect 2D command (solidfill or invert (via ROP_XOR))
861 */
862 static void tdfxfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
863 {
864 struct tdfx_par *par = (struct tdfx_par *) info->par;
865 u32 bpp = info->var.bits_per_pixel;
866 u32 stride = info->fix.line_length;
867 u32 fmt= stride | ((bpp+((bpp==8) ? 0 : 8)) << 13);
868 int tdfx_rop;
869
870 if (rect->rop == ROP_COPY)
871 tdfx_rop = TDFX_ROP_COPY;
872 else
873 tdfx_rop = TDFX_ROP_XOR;
874
875 banshee_make_room(par, 5);
876 tdfx_outl(par, DSTFORMAT, fmt);
877 if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
878 tdfx_outl(par, COLORFORE, rect->color);
879 } else { /* FB_VISUAL_TRUECOLOR */
880 tdfx_outl(par, COLORFORE, ((u32*)(info->pseudo_palette))[rect->color]);
881 }
882 tdfx_outl(par, COMMAND_2D, COMMAND_2D_FILLRECT | (tdfx_rop << 24));
883 tdfx_outl(par, DSTSIZE, rect->width | (rect->height << 16));
884 tdfx_outl(par, LAUNCH_2D, rect->dx | (rect->dy << 16));
885 }
886
887 /*
888 * Screen-to-Screen BitBlt 2D command (for the bmove fb op.)
889 */
890 static void tdfxfb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
891 {
892 struct tdfx_par *par = (struct tdfx_par *) info->par;
893 u32 sx = area->sx, sy = area->sy, dx = area->dx, dy = area->dy;
894 u32 bpp = info->var.bits_per_pixel;
895 u32 stride = info->fix.line_length;
896 u32 blitcmd = COMMAND_2D_S2S_BITBLT | (TDFX_ROP_COPY << 24);
897 u32 fmt = stride | ((bpp+((bpp==8) ? 0 : 8)) << 13);
898
899 if (area->sx <= area->dx) {
900 //-X
901 blitcmd |= BIT(14);
902 sx += area->width - 1;
903 dx += area->width - 1;
904 }
905 if (area->sy <= area->dy) {
906 //-Y
907 blitcmd |= BIT(15);
908 sy += area->height - 1;
909 dy += area->height - 1;
910 }
911
912 banshee_make_room(par, 6);
913
914 tdfx_outl(par, SRCFORMAT, fmt);
915 tdfx_outl(par, DSTFORMAT, fmt);
916 tdfx_outl(par, COMMAND_2D, blitcmd);
917 tdfx_outl(par, DSTSIZE, area->width | (area->height << 16));
918 tdfx_outl(par, DSTXY, dx | (dy << 16));
919 tdfx_outl(par, LAUNCH_2D, sx | (sy << 16));
920 }
921
922 static void tdfxfb_imageblit(struct fb_info *info, const struct fb_image *image)
923 {
924 struct tdfx_par *par = (struct tdfx_par *) info->par;
925 int size = image->height * ((image->width * image->depth + 7)>>3);
926 int fifo_free;
927 int i, stride = info->fix.line_length;
928 u32 bpp = info->var.bits_per_pixel;
929 u32 dstfmt = stride | ((bpp+((bpp==8) ? 0 : 8)) << 13);
930 u8 *chardata = (u8 *) image->data;
931 u32 srcfmt;
932
933 if (image->depth != 1) {
934 //banshee_make_room(par, 6 + ((size + 3) >> 2));
935 //srcfmt = stride | ((bpp+((bpp==8) ? 0 : 8)) << 13) | 0x400000;
936 cfb_imageblit(info, image);
937 return;
938 } else {
939 banshee_make_room(par, 8);
940 switch (info->fix.visual) {
941 case FB_VISUAL_PSEUDOCOLOR:
942 tdfx_outl(par, COLORFORE, image->fg_color);
943 tdfx_outl(par, COLORBACK, image->bg_color);
944 break;
945 case FB_VISUAL_TRUECOLOR:
946 default:
947 tdfx_outl(par, COLORFORE, ((u32*)(info->pseudo_palette))[image->fg_color]);
948 tdfx_outl(par, COLORBACK, ((u32*)(info->pseudo_palette))[image->bg_color]);
949 }
950 #ifdef __BIG_ENDIAN
951 srcfmt = 0x400000 | BIT(20);
952 #else
953 srcfmt = 0x400000;
954 #endif
955 }
956
957 tdfx_outl(par, SRCXY, 0);
958 tdfx_outl(par, DSTXY, image->dx | (image->dy << 16));
959 tdfx_outl(par, COMMAND_2D, COMMAND_2D_H2S_BITBLT | (TDFX_ROP_COPY << 24));
960 tdfx_outl(par, SRCFORMAT, srcfmt);
961 tdfx_outl(par, DSTFORMAT, dstfmt);
962 tdfx_outl(par, DSTSIZE, image->width | (image->height << 16));
963
964 /* A count of how many free FIFO entries we've requested.
965 * When this goes negative, we need to request more. */
966 fifo_free = 0;
967
968 /* Send four bytes at a time of data */
969 for (i = (size >> 2) ; i > 0; i--) {
970 if(--fifo_free < 0) {
971 fifo_free=31;
972 banshee_make_room(par,fifo_free);
973 }
974 tdfx_outl(par, LAUNCH_2D,*(u32*)chardata);
975 chardata += 4;
976 }
977
978 /* Send the leftovers now */
979 banshee_make_room(par,3);
980 i = size%4;
981 switch (i) {
982 case 0: break;
983 case 1: tdfx_outl(par, LAUNCH_2D,*chardata); break;
984 case 2: tdfx_outl(par, LAUNCH_2D,*(u16*)chardata); break;
985 case 3: tdfx_outl(par, LAUNCH_2D,*(u16*)chardata | ((chardata[3]) << 24)); break;
986 }
987 }
988 #endif /* CONFIG_FB_3DFX_ACCEL */
989
990 #ifdef TDFX_HARDWARE_CURSOR
991 static int tdfxfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
992 {
993 struct tdfx_par *par = (struct tdfx_par *) info->par;
994 unsigned long flags;
995
996 /*
997 * If the cursor is not be changed this means either we want the
998 * current cursor state (if enable is set) or we want to query what
999 * we can do with the cursor (if enable is not set)
1000 */
1001 if (!cursor->set) return 0;
1002
1003 /* Too large of a cursor :-( */
1004 if (cursor->image.width > 64 || cursor->image.height > 64)
1005 return -ENXIO;
1006
1007 /*
1008 * If we are going to be changing things we should disable
1009 * the cursor first
1010 */
1011 if (info->cursor.enable) {
1012 spin_lock_irqsave(&par->DAClock, flags);
1013 info->cursor.enable = 0;
1014 del_timer(&(par->hwcursor.timer));
1015 tdfx_outl(par, VIDPROCCFG, par->hwcursor.disable);
1016 spin_unlock_irqrestore(&par->DAClock, flags);
1017 }
1018
1019 /* Disable the Cursor */
1020 if ((cursor->set && FB_CUR_SETCUR) && !cursor->enable)
1021 return 0;
1022
1023 /* fix cursor color - XFree86 forgets to restore it properly */
1024 if (cursor->set && FB_CUR_SETCMAP) {
1025 struct fb_cmap cmap = cursor->image.cmap;
1026 unsigned long bg_color, fg_color;
1027
1028 cmap.len = 2; /* Voodoo 3+ only support 2 color cursors */
1029 fg_color = ((cmap.red[cmap.start] << 16) |
1030 (cmap.green[cmap.start] << 8) |
1031 (cmap.blue[cmap.start]));
1032 bg_color = ((cmap.red[cmap.start+1] << 16) |
1033 (cmap.green[cmap.start+1] << 8) |
1034 (cmap.blue[cmap.start+1]));
1035 fb_copy_cmap(&cmap, &info->cursor.image.cmap);
1036 spin_lock_irqsave(&par->DAClock, flags);
1037 banshee_make_room(par, 2);
1038 tdfx_outl(par, HWCURC0, bg_color);
1039 tdfx_outl(par, HWCURC1, fg_color);
1040 spin_unlock_irqrestore(&par->DAClock, flags);
1041 }
1042
1043 if (cursor->set && FB_CUR_SETPOS) {
1044 int x, y;
1045
1046 x = cursor->image.dx;
1047 y = cursor->image.dy;
1048 y -= info->var.yoffset;
1049 info->cursor.image.dx = x;
1050 info->cursor.image.dy = y;
1051 x += 63;
1052 y += 63;
1053 spin_lock_irqsave(&par->DAClock, flags);
1054 banshee_make_room(par, 1);
1055 tdfx_outl(par, HWCURLOC, (y << 16) + x);
1056 spin_unlock_irqrestore(&par->DAClock, flags);
1057 }
1058
1059 /* Not supported so we fake it */
1060 if (cursor->set && FB_CUR_SETHOT) {
1061 info->cursor.hot.x = cursor->hot.x;
1062 info->cursor.hot.y = cursor->hot.y;
1063 }
1064
1065 if (cursor->set && FB_CUR_SETSHAPE) {
1066 /*
1067 * Voodoo 3 and above cards use 2 monochrome cursor patterns.
1068 * The reason is so the card can fetch 8 words at a time
1069 * and are stored on chip for use for the next 8 scanlines.
1070 * This reduces the number of times for access to draw the
1071 * cursor for each screen refresh.
1072 * Each pattern is a bitmap of 64 bit wide and 64 bit high
1073 * (total of 8192 bits or 1024 Kbytes). The two patterns are
1074 * stored in such a way that pattern 0 always resides in the
1075 * lower half (least significant 64 bits) of a 128 bit word
1076 * and pattern 1 the upper half. If you examine the data of
1077 * the cursor image the graphics card uses then from the
1078 * begining you see line one of pattern 0, line one of
1079 * pattern 1, line two of pattern 0, line two of pattern 1,
1080 * etc etc. The linear stride for the cursor is always 16 bytes
1081 * (128 bits) which is the maximum cursor width times two for
1082 * the two monochrome patterns.
1083 */
1084 u8 *cursorbase = (u8 *) info->cursor.image.data;
1085 char *bitmap = (char *)cursor->image.data;
1086 char *mask = (char *) cursor->mask;
1087 int i, j, k, h = 0;
1088
1089 for (i = 0; i < 64; i++) {
1090 if (i < cursor->image.height) {
1091 j = (cursor->image.width + 7) >> 3;
1092 k = 8 - j;
1093
1094 for (;j > 0; j--) {
1095 /* Pattern 0. Copy the cursor bitmap to it */
1096 fb_writeb(*bitmap, cursorbase + h);
1097 bitmap++;
1098 /* Pattern 1. Copy the cursor mask to it */
1099 fb_writeb(*mask, cursorbase + h + 8);
1100 mask++;
1101 h++;
1102 }
1103 for (;k > 0; k--) {
1104 fb_writeb(0, cursorbase + h);
1105 fb_writeb(~0, cursorbase + h + 8);
1106 h++;
1107 }
1108 } else {
1109 fb_writel(0, cursorbase + h);
1110 fb_writel(0, cursorbase + h + 4);
1111 fb_writel(~0, cursorbase + h + 8);
1112 fb_writel(~0, cursorbase + h + 12);
1113 h += 16;
1114 }
1115 }
1116 }
1117 /* Turn the cursor on */
1118 cursor->enable = 1;
1119 info->cursor = *cursor;
1120 mod_timer(&par->hwcursor.timer, jiffies+HZ/2);
1121 spin_lock_irqsave(&par->DAClock, flags);
1122 banshee_make_room(par, 1);
1123 tdfx_outl(par, VIDPROCCFG, par->hwcursor.enable);
1124 spin_unlock_irqrestore(&par->DAClock, flags);
1125 return 0;
1126 }
1127 #endif
1128
1129 /**
1130 * tdfxfb_probe - Device Initializiation
1131 *
1132 * @pdev: PCI Device to initialize
1133 * @id: PCI Device ID
1134 *
1135 * Initializes and allocates resources for PCI device @pdev.
1136 *
1137 */
1138 static int __devinit tdfxfb_probe(struct pci_dev *pdev,
1139 const struct pci_device_id *id)
1140 {
1141 struct tdfx_par *default_par;
1142 struct fb_info *info;
1143 int size, err, lpitch;
1144
1145 if ((err = pci_enable_device(pdev))) {
1146 printk(KERN_WARNING "tdfxfb: Can't enable pdev: %d\n", err);
1147 return err;
1148 }
1149
1150 size = sizeof(struct tdfx_par)+256*sizeof(u32);
1151
1152 info = framebuffer_alloc(size, &pdev->dev);
1153
1154 if (!info) return -ENOMEM;
1155
1156 default_par = info->par;
1157
1158 /* Configure the default fb_fix_screeninfo first */
1159 switch (pdev->device) {
1160 case PCI_DEVICE_ID_3DFX_BANSHEE:
1161 strcat(tdfx_fix.id, " Banshee");
1162 default_par->max_pixclock = BANSHEE_MAX_PIXCLOCK;
1163 break;
1164 case PCI_DEVICE_ID_3DFX_VOODOO3:
1165 strcat(tdfx_fix.id, " Voodoo3");
1166 default_par->max_pixclock = VOODOO3_MAX_PIXCLOCK;
1167 break;
1168 case PCI_DEVICE_ID_3DFX_VOODOO5:
1169 strcat(tdfx_fix.id, " Voodoo5");
1170 default_par->max_pixclock = VOODOO5_MAX_PIXCLOCK;
1171 break;
1172 }
1173
1174 tdfx_fix.mmio_start = pci_resource_start(pdev, 0);
1175 tdfx_fix.mmio_len = pci_resource_len(pdev, 0);
1176 default_par->regbase_virt = ioremap_nocache(tdfx_fix.mmio_start, tdfx_fix.mmio_len);
1177 if (!default_par->regbase_virt) {
1178 printk("fb: Can't remap %s register area.\n", tdfx_fix.id);
1179 goto out_err;
1180 }
1181
1182 if (!request_mem_region(pci_resource_start(pdev, 0),
1183 pci_resource_len(pdev, 0), "tdfx regbase")) {
1184 printk(KERN_WARNING "tdfxfb: Can't reserve regbase\n");
1185 goto out_err;
1186 }
1187
1188 tdfx_fix.smem_start = pci_resource_start(pdev, 1);
1189 if (!(tdfx_fix.smem_len = do_lfb_size(default_par, pdev->device))) {
1190 printk("fb: Can't count %s memory.\n", tdfx_fix.id);
1191 release_mem_region(pci_resource_start(pdev, 0),
1192 pci_resource_len(pdev, 0));
1193 goto out_err;
1194 }
1195
1196 if (!request_mem_region(pci_resource_start(pdev, 1),
1197 pci_resource_len(pdev, 1), "tdfx smem")) {
1198 printk(KERN_WARNING "tdfxfb: Can't reserve smem\n");
1199 release_mem_region(pci_resource_start(pdev, 0),
1200 pci_resource_len(pdev, 0));
1201 goto out_err;
1202 }
1203
1204 info->screen_base = ioremap_nocache(tdfx_fix.smem_start,
1205 tdfx_fix.smem_len);
1206 if (!info->screen_base) {
1207 printk("fb: Can't remap %s framebuffer.\n", tdfx_fix.id);
1208 release_mem_region(pci_resource_start(pdev, 1),
1209 pci_resource_len(pdev, 1));
1210 release_mem_region(pci_resource_start(pdev, 0),
1211 pci_resource_len(pdev, 0));
1212 goto out_err;
1213 }
1214
1215 default_par->iobase = pci_resource_start(pdev, 2);
1216
1217 if (!request_region(pci_resource_start(pdev, 2),
1218 pci_resource_len(pdev, 2), "tdfx iobase")) {
1219 printk(KERN_WARNING "tdfxfb: Can't reserve iobase\n");
1220 release_mem_region(pci_resource_start(pdev, 1),
1221 pci_resource_len(pdev, 1));
1222 release_mem_region(pci_resource_start(pdev, 0),
1223 pci_resource_len(pdev, 0));
1224 goto out_err;
1225 }
1226
1227 printk("fb: %s memory = %dK\n", tdfx_fix.id, tdfx_fix.smem_len >> 10);
1228
1229 tdfx_fix.ypanstep = nopan ? 0 : 1;
1230 tdfx_fix.ywrapstep = nowrap ? 0 : 1;
1231
1232 info->fbops = &tdfxfb_ops;
1233 info->fix = tdfx_fix;
1234 info->pseudo_palette = (void *)(default_par + 1);
1235 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1236 #ifdef CONFIG_FB_3DFX_ACCEL
1237 info->flags |= FBINFO_HWACCEL_FILLRECT |
1238 FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_IMAGEBLIT;
1239 #endif
1240
1241 if (!mode_option)
1242 mode_option = "640x480@60";
1243
1244 err = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 8);
1245 if (!err || err == 4)
1246 info->var = tdfx_var;
1247
1248 /* maximize virtual vertical length */
1249 lpitch = info->var.xres_virtual * ((info->var.bits_per_pixel + 7) >> 3);
1250 info->var.yres_virtual = info->fix.smem_len/lpitch;
1251 if (info->var.yres_virtual < info->var.yres)
1252 goto out_err;
1253
1254 #ifdef CONFIG_FB_3DFX_ACCEL
1255 /*
1256 * FIXME: Limit var->yres_virtual to 4096 because of screen artifacts
1257 * during scrolling. This is only present if 2D acceleration is
1258 * enabled.
1259 */
1260 if (info->var.yres_virtual > 4096)
1261 info->var.yres_virtual = 4096;
1262 #endif /* CONFIG_FB_3DFX_ACCEL */
1263
1264 if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
1265 printk(KERN_WARNING "tdfxfb: Can't allocate color map\n");
1266 goto out_err;
1267 }
1268
1269 if (register_framebuffer(info) < 0) {
1270 printk("tdfxfb: can't register framebuffer\n");
1271 fb_dealloc_cmap(&info->cmap);
1272 goto out_err;
1273 }
1274 /*
1275 * Our driver data
1276 */
1277 pci_set_drvdata(pdev, info);
1278 return 0;
1279
1280 out_err:
1281 /*
1282 * Cleanup after anything that was remapped/allocated.
1283 */
1284 if (default_par->regbase_virt)
1285 iounmap(default_par->regbase_virt);
1286 if (info->screen_base)
1287 iounmap(info->screen_base);
1288 framebuffer_release(info);
1289 return -ENXIO;
1290 }
1291
1292 #ifndef MODULE
1293 void tdfxfb_setup(char *options)
1294 {
1295 char* this_opt;
1296
1297 if (!options || !*options)
1298 return;
1299
1300 while ((this_opt = strsep(&options, ",")) != NULL) {
1301 if (!*this_opt)
1302 continue;
1303 if(!strcmp(this_opt, "nopan")) {
1304 nopan = 1;
1305 } else if(!strcmp(this_opt, "nowrap")) {
1306 nowrap = 1;
1307 } else {
1308 mode_option = this_opt;
1309 }
1310 }
1311 }
1312 #endif
1313
1314 /**
1315 * tdfxfb_remove - Device removal
1316 *
1317 * @pdev: PCI Device to cleanup
1318 *
1319 * Releases all resources allocated during the course of the driver's
1320 * lifetime for the PCI device @pdev.
1321 *
1322 */
1323 static void __devexit tdfxfb_remove(struct pci_dev *pdev)
1324 {
1325 struct fb_info *info = pci_get_drvdata(pdev);
1326 struct tdfx_par *par = (struct tdfx_par *) info->par;
1327
1328 unregister_framebuffer(info);
1329 iounmap(par->regbase_virt);
1330 iounmap(info->screen_base);
1331
1332 /* Clean up after reserved regions */
1333 release_region(pci_resource_start(pdev, 2),
1334 pci_resource_len(pdev, 2));
1335 release_mem_region(pci_resource_start(pdev, 1),
1336 pci_resource_len(pdev, 1));
1337 release_mem_region(pci_resource_start(pdev, 0),
1338 pci_resource_len(pdev, 0));
1339 pci_set_drvdata(pdev, NULL);
1340 framebuffer_release(info);
1341 }
1342
1343 static int __init tdfxfb_init(void)
1344 {
1345 #ifndef MODULE
1346 char *option = NULL;
1347
1348 if (fb_get_options("tdfxfb", &option))
1349 return -ENODEV;
1350
1351 tdfxfb_setup(option);
1352 #endif
1353 return pci_register_driver(&tdfxfb_driver);
1354 }
1355
1356 static void __exit tdfxfb_exit(void)
1357 {
1358 pci_unregister_driver(&tdfxfb_driver);
1359 }
1360
1361 MODULE_AUTHOR("Hannu Mallat <hmallat@cc.hut.fi>");
1362 MODULE_DESCRIPTION("3Dfx framebuffer device driver");
1363 MODULE_LICENSE("GPL");
1364
1365 module_init(tdfxfb_init);
1366 module_exit(tdfxfb_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree