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Linux 2.6.21-rc3
[linux/fpc-iii.git] / drivers / video / savage / savagefb_driver.c
blob4afa30522fdbb4c375b37057a77b3a04d1bf3097
1 /*
2 * linux/drivers/video/savagefb.c -- S3 Savage Framebuffer Driver
3 *
4 * Copyright (c) 2001-2002 Denis Oliver Kropp <dok@directfb.org>
5 * Sven Neumann <neo@directfb.org>
6 *
7 *
8 * Card specific code is based on XFree86's savage driver.
9 * Framebuffer framework code is based on code of cyber2000fb and tdfxfb.
10 *
11 * This file is subject to the terms and conditions of the GNU General
12 * Public License. See the file COPYING in the main directory of this
13 * archive for more details.
14 *
15 * 0.4.0 (neo)
16 * - hardware accelerated clear and move
17 *
18 * 0.3.2 (dok)
19 * - wait for vertical retrace before writing to cr67
20 * at the beginning of savagefb_set_par
21 * - use synchronization registers cr23 and cr26
22 *
23 * 0.3.1 (dok)
24 * - reset 3D engine
25 * - don't return alpha bits for 32bit format
26 *
27 * 0.3.0 (dok)
28 * - added WaitIdle functions for all Savage types
29 * - do WaitIdle before mode switching
30 * - code cleanup
31 *
32 * 0.2.0 (dok)
33 * - first working version
34 *
35 *
36 * TODO
37 * - clock validations in decode_var
38 *
39 * BUGS
40 * - white margin on bootup
41 *
42 */
43
44 #include <linux/module.h>
45 #include <linux/kernel.h>
46 #include <linux/errno.h>
47 #include <linux/string.h>
48 #include <linux/mm.h>
49 #include <linux/slab.h>
50 #include <linux/delay.h>
51 #include <linux/fb.h>
52 #include <linux/pci.h>
53 #include <linux/init.h>
54 #include <linux/console.h>
55
56 #include <asm/io.h>
57 #include <asm/irq.h>
58 #include <asm/pgtable.h>
59 #include <asm/system.h>
60 #include <asm/uaccess.h>
61
62 #ifdef CONFIG_MTRR
63 #include <asm/mtrr.h>
64 #endif
65
66 #include "savagefb.h"
67
68
69 #define SAVAGEFB_VERSION "0.4.0_2.6"
70
71 /* --------------------------------------------------------------------- */
72
73
74 static char *mode_option __devinitdata = NULL;
75
76 #ifdef MODULE
77
78 MODULE_AUTHOR("(c) 2001-2002 Denis Oliver Kropp <dok@directfb.org>");
79 MODULE_LICENSE("GPL");
80 MODULE_DESCRIPTION("FBDev driver for S3 Savage PCI/AGP Chips");
81
82 #endif
83
84
85 /* --------------------------------------------------------------------- */
86
87 static void vgaHWSeqReset(struct savagefb_par *par, int start)
88 {
89 if (start)
90 VGAwSEQ(0x00, 0x01, par); /* Synchronous Reset */
91 else
92 VGAwSEQ(0x00, 0x03, par); /* End Reset */
93 }
94
95 static void vgaHWProtect(struct savagefb_par *par, int on)
96 {
97 unsigned char tmp;
98
99 if (on) {
100 /*
101 * Turn off screen and disable sequencer.
102 */
103 tmp = VGArSEQ(0x01, par);
104
105 vgaHWSeqReset(par, 1); /* start synchronous reset */
106 VGAwSEQ(0x01, tmp | 0x20, par);/* disable the display */
107
108 VGAenablePalette(par);
109 } else {
110 /*
111 * Reenable sequencer, then turn on screen.
112 */
113
114 tmp = VGArSEQ(0x01, par);
115
116 VGAwSEQ(0x01, tmp & ~0x20, par);/* reenable display */
117 vgaHWSeqReset(par, 0); /* clear synchronous reset */
118
119 VGAdisablePalette(par);
120 }
121 }
122
123 static void vgaHWRestore(struct savagefb_par *par, struct savage_reg *reg)
124 {
125 int i;
126
127 VGAwMISC(reg->MiscOutReg, par);
128
129 for (i = 1; i < 5; i++)
130 VGAwSEQ(i, reg->Sequencer[i], par);
131
132 /* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 or
133 CRTC[17] */
134 VGAwCR(17, reg->CRTC[17] & ~0x80, par);
135
136 for (i = 0; i < 25; i++)
137 VGAwCR(i, reg->CRTC[i], par);
138
139 for (i = 0; i < 9; i++)
140 VGAwGR(i, reg->Graphics[i], par);
141
142 VGAenablePalette(par);
143
144 for (i = 0; i < 21; i++)
145 VGAwATTR(i, reg->Attribute[i], par);
146
147 VGAdisablePalette(par);
148 }
149
150 static void vgaHWInit(struct fb_var_screeninfo *var,
151 struct savagefb_par *par,
152 struct xtimings *timings,
153 struct savage_reg *reg)
154 {
155 reg->MiscOutReg = 0x23;
156
157 if (!(timings->sync & FB_SYNC_HOR_HIGH_ACT))
158 reg->MiscOutReg |= 0x40;
159
160 if (!(timings->sync & FB_SYNC_VERT_HIGH_ACT))
161 reg->MiscOutReg |= 0x80;
162
163 /*
164 * Time Sequencer
165 */
166 reg->Sequencer[0x00] = 0x00;
167 reg->Sequencer[0x01] = 0x01;
168 reg->Sequencer[0x02] = 0x0F;
169 reg->Sequencer[0x03] = 0x00; /* Font select */
170 reg->Sequencer[0x04] = 0x0E; /* Misc */
171
172 /*
173 * CRTC Controller
174 */
175 reg->CRTC[0x00] = (timings->HTotal >> 3) - 5;
176 reg->CRTC[0x01] = (timings->HDisplay >> 3) - 1;
177 reg->CRTC[0x02] = (timings->HSyncStart >> 3) - 1;
178 reg->CRTC[0x03] = (((timings->HSyncEnd >> 3) - 1) & 0x1f) | 0x80;
179 reg->CRTC[0x04] = (timings->HSyncStart >> 3);
180 reg->CRTC[0x05] = ((((timings->HSyncEnd >> 3) - 1) & 0x20) << 2) |
181 (((timings->HSyncEnd >> 3)) & 0x1f);
182 reg->CRTC[0x06] = (timings->VTotal - 2) & 0xFF;
183 reg->CRTC[0x07] = (((timings->VTotal - 2) & 0x100) >> 8) |
184 (((timings->VDisplay - 1) & 0x100) >> 7) |
185 ((timings->VSyncStart & 0x100) >> 6) |
186 (((timings->VSyncStart - 1) & 0x100) >> 5) |
187 0x10 |
188 (((timings->VTotal - 2) & 0x200) >> 4) |
189 (((timings->VDisplay - 1) & 0x200) >> 3) |
190 ((timings->VSyncStart & 0x200) >> 2);
191 reg->CRTC[0x08] = 0x00;
192 reg->CRTC[0x09] = (((timings->VSyncStart - 1) & 0x200) >> 4) | 0x40;
193
194 if (timings->dblscan)
195 reg->CRTC[0x09] |= 0x80;
196
197 reg->CRTC[0x0a] = 0x00;
198 reg->CRTC[0x0b] = 0x00;
199 reg->CRTC[0x0c] = 0x00;
200 reg->CRTC[0x0d] = 0x00;
201 reg->CRTC[0x0e] = 0x00;
202 reg->CRTC[0x0f] = 0x00;
203 reg->CRTC[0x10] = timings->VSyncStart & 0xff;
204 reg->CRTC[0x11] = (timings->VSyncEnd & 0x0f) | 0x20;
205 reg->CRTC[0x12] = (timings->VDisplay - 1) & 0xff;
206 reg->CRTC[0x13] = var->xres_virtual >> 4;
207 reg->CRTC[0x14] = 0x00;
208 reg->CRTC[0x15] = (timings->VSyncStart - 1) & 0xff;
209 reg->CRTC[0x16] = (timings->VSyncEnd - 1) & 0xff;
210 reg->CRTC[0x17] = 0xc3;
211 reg->CRTC[0x18] = 0xff;
212
213 /*
214 * are these unnecessary?
215 * vgaHWHBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN|KGA_ENABLE_ON_ZERO);
216 * vgaHWVBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN|KGA_ENABLE_ON_ZERO);
217 */
218
219 /*
220 * Graphics Display Controller
221 */
222 reg->Graphics[0x00] = 0x00;
223 reg->Graphics[0x01] = 0x00;
224 reg->Graphics[0x02] = 0x00;
225 reg->Graphics[0x03] = 0x00;
226 reg->Graphics[0x04] = 0x00;
227 reg->Graphics[0x05] = 0x40;
228 reg->Graphics[0x06] = 0x05; /* only map 64k VGA memory !!!! */
229 reg->Graphics[0x07] = 0x0F;
230 reg->Graphics[0x08] = 0xFF;
231
232
233 reg->Attribute[0x00] = 0x00; /* standard colormap translation */
234 reg->Attribute[0x01] = 0x01;
235 reg->Attribute[0x02] = 0x02;
236 reg->Attribute[0x03] = 0x03;
237 reg->Attribute[0x04] = 0x04;
238 reg->Attribute[0x05] = 0x05;
239 reg->Attribute[0x06] = 0x06;
240 reg->Attribute[0x07] = 0x07;
241 reg->Attribute[0x08] = 0x08;
242 reg->Attribute[0x09] = 0x09;
243 reg->Attribute[0x0a] = 0x0A;
244 reg->Attribute[0x0b] = 0x0B;
245 reg->Attribute[0x0c] = 0x0C;
246 reg->Attribute[0x0d] = 0x0D;
247 reg->Attribute[0x0e] = 0x0E;
248 reg->Attribute[0x0f] = 0x0F;
249 reg->Attribute[0x10] = 0x41;
250 reg->Attribute[0x11] = 0xFF;
251 reg->Attribute[0x12] = 0x0F;
252 reg->Attribute[0x13] = 0x00;
253 reg->Attribute[0x14] = 0x00;
254 }
255
256 /* -------------------- Hardware specific routines ------------------------- */
257
258 /*
259 * Hardware Acceleration for SavageFB
260 */
261
262 /* Wait for fifo space */
263 static void
264 savage3D_waitfifo(struct savagefb_par *par, int space)
265 {
266 int slots = MAXFIFO - space;
267
268 while ((savage_in32(0x48C00, par) & 0x0000ffff) > slots);
269 }
270
271 static void
272 savage4_waitfifo(struct savagefb_par *par, int space)
273 {
274 int slots = MAXFIFO - space;
275
276 while ((savage_in32(0x48C60, par) & 0x001fffff) > slots);
277 }
278
279 static void
280 savage2000_waitfifo(struct savagefb_par *par, int space)
281 {
282 int slots = MAXFIFO - space;
283
284 while ((savage_in32(0x48C60, par) & 0x0000ffff) > slots);
285 }
286
287 /* Wait for idle accelerator */
288 static void
289 savage3D_waitidle(struct savagefb_par *par)
290 {
291 while ((savage_in32(0x48C00, par) & 0x0008ffff) != 0x80000);
292 }
293
294 static void
295 savage4_waitidle(struct savagefb_par *par)
296 {
297 while ((savage_in32(0x48C60, par) & 0x00a00000) != 0x00a00000);
298 }
299
300 static void
301 savage2000_waitidle(struct savagefb_par *par)
302 {
303 while ((savage_in32(0x48C60, par) & 0x009fffff));
304 }
305
306 #ifdef CONFIG_FB_SAVAGE_ACCEL
307 static void
308 SavageSetup2DEngine(struct savagefb_par *par)
309 {
310 unsigned long GlobalBitmapDescriptor;
311
312 GlobalBitmapDescriptor = 1 | 8 | BCI_BD_BW_DISABLE;
313 BCI_BD_SET_BPP(GlobalBitmapDescriptor, par->depth);
314 BCI_BD_SET_STRIDE(GlobalBitmapDescriptor, par->vwidth);
315
316 switch(par->chip) {
317 case S3_SAVAGE3D:
318 case S3_SAVAGE_MX:
319 /* Disable BCI */
320 savage_out32(0x48C18, savage_in32(0x48C18, par) & 0x3FF0, par);
321 /* Setup BCI command overflow buffer */
322 savage_out32(0x48C14,
323 (par->cob_offset >> 11) | (par->cob_index << 29),
324 par);
325 /* Program shadow status update. */
326 savage_out32(0x48C10, 0x78207220, par);
327 savage_out32(0x48C0C, 0, par);
328 /* Enable BCI and command overflow buffer */
329 savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x0C, par);
330 break;
331 case S3_SAVAGE4:
332 case S3_PROSAVAGE:
333 case S3_SUPERSAVAGE:
334 /* Disable BCI */
335 savage_out32(0x48C18, savage_in32(0x48C18, par) & 0x3FF0, par);
336 /* Program shadow status update */
337 savage_out32(0x48C10, 0x00700040, par);
338 savage_out32(0x48C0C, 0, par);
339 /* Enable BCI without the COB */
340 savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x08, par);
341 break;
342 case S3_SAVAGE2000:
343 /* Disable BCI */
344 savage_out32(0x48C18, 0, par);
345 /* Setup BCI command overflow buffer */
346 savage_out32(0x48C18,
347 (par->cob_offset >> 7) | (par->cob_index),
348 par);
349 /* Disable shadow status update */
350 savage_out32(0x48A30, 0, par);
351 /* Enable BCI and command overflow buffer */
352 savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x00280000,
353 par);
354 break;
355 default:
356 break;
357 }
358 /* Turn on 16-bit register access. */
359 vga_out8(0x3d4, 0x31, par);
360 vga_out8(0x3d5, 0x0c, par);
361
362 /* Set stride to use GBD. */
363 vga_out8(0x3d4, 0x50, par);
364 vga_out8(0x3d5, vga_in8(0x3d5, par) | 0xC1, par);
365
366 /* Enable 2D engine. */
367 vga_out8(0x3d4, 0x40, par);
368 vga_out8(0x3d5, 0x01, par);
369
370 savage_out32(MONO_PAT_0, ~0, par);
371 savage_out32(MONO_PAT_1, ~0, par);
372
373 /* Setup plane masks */
374 savage_out32(0x8128, ~0, par); /* enable all write planes */
375 savage_out32(0x812C, ~0, par); /* enable all read planes */
376 savage_out16(0x8134, 0x27, par);
377 savage_out16(0x8136, 0x07, par);
378
379 /* Now set the GBD */
380 par->bci_ptr = 0;
381 par->SavageWaitFifo(par, 4);
382
383 BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD1);
384 BCI_SEND(0);
385 BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD2);
386 BCI_SEND(GlobalBitmapDescriptor);
387 }
388
389 static void savagefb_set_clip(struct fb_info *info)
390 {
391 struct savagefb_par *par = info->par;
392 int cmd;
393
394 cmd = BCI_CMD_NOP | BCI_CMD_CLIP_NEW;
395 par->bci_ptr = 0;
396 par->SavageWaitFifo(par,3);
397 BCI_SEND(cmd);
398 BCI_SEND(BCI_CLIP_TL(0, 0));
399 BCI_SEND(BCI_CLIP_BR(0xfff, 0xfff));
400 }
401 #else
402 static void SavageSetup2DEngine(struct savagefb_par *par) {}
403
404 #endif
405
406 static void SavageCalcClock(long freq, int min_m, int min_n1, int max_n1,
407 int min_n2, int max_n2, long freq_min,
408 long freq_max, unsigned int *mdiv,
409 unsigned int *ndiv, unsigned int *r)
410 {
411 long diff, best_diff;
412 unsigned int m;
413 unsigned char n1, n2, best_n1=16+2, best_n2=2, best_m=125+2;
414
415 if (freq < freq_min / (1 << max_n2)) {
416 printk(KERN_ERR "invalid frequency %ld Khz\n", freq);
417 freq = freq_min / (1 << max_n2);
418 }
419 if (freq > freq_max / (1 << min_n2)) {
420 printk(KERN_ERR "invalid frequency %ld Khz\n", freq);
421 freq = freq_max / (1 << min_n2);
422 }
423
424 /* work out suitable timings */
425 best_diff = freq;
426
427 for (n2=min_n2; n2<=max_n2; n2++) {
428 for (n1=min_n1+2; n1<=max_n1+2; n1++) {
429 m = (freq * n1 * (1 << n2) + HALF_BASE_FREQ) /
430 BASE_FREQ;
431 if (m < min_m+2 || m > 127+2)
432 continue;
433 if ((m * BASE_FREQ >= freq_min * n1) &&
434 (m * BASE_FREQ <= freq_max * n1)) {
435 diff = freq * (1 << n2) * n1 - BASE_FREQ * m;
436 if (diff < 0)
437 diff = -diff;
438 if (diff < best_diff) {
439 best_diff = diff;
440 best_m = m;
441 best_n1 = n1;
442 best_n2 = n2;
443 }
444 }
445 }
446 }
447
448 *ndiv = best_n1 - 2;
449 *r = best_n2;
450 *mdiv = best_m - 2;
451 }
452
453 static int common_calc_clock(long freq, int min_m, int min_n1, int max_n1,
454 int min_n2, int max_n2, long freq_min,
455 long freq_max, unsigned char *mdiv,
456 unsigned char *ndiv)
457 {
458 long diff, best_diff;
459 unsigned int m;
460 unsigned char n1, n2;
461 unsigned char best_n1 = 16+2, best_n2 = 2, best_m = 125+2;
462
463 best_diff = freq;
464
465 for (n2 = min_n2; n2 <= max_n2; n2++) {
466 for (n1 = min_n1+2; n1 <= max_n1+2; n1++) {
467 m = (freq * n1 * (1 << n2) + HALF_BASE_FREQ) /
468 BASE_FREQ;
469 if (m < min_m + 2 || m > 127+2)
470 continue;
471 if ((m * BASE_FREQ >= freq_min * n1) &&
472 (m * BASE_FREQ <= freq_max * n1)) {
473 diff = freq * (1 << n2) * n1 - BASE_FREQ * m;
474 if (diff < 0)
475 diff = -diff;
476 if (diff < best_diff) {
477 best_diff = diff;
478 best_m = m;
479 best_n1 = n1;
480 best_n2 = n2;
481 }
482 }
483 }
484 }
485
486 if (max_n1 == 63)
487 *ndiv = (best_n1 - 2) | (best_n2 << 6);
488 else
489 *ndiv = (best_n1 - 2) | (best_n2 << 5);
490
491 *mdiv = best_m - 2;
492
493 return 0;
494 }
495
496 #ifdef SAVAGEFB_DEBUG
497 /* This function is used to debug, it prints out the contents of s3 regs */
498
499 static void SavagePrintRegs(void)
500 {
501 unsigned char i;
502 int vgaCRIndex = 0x3d4;
503 int vgaCRReg = 0x3d5;
504
505 printk(KERN_DEBUG "SR x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE "
506 "xF");
507
508 for (i = 0; i < 0x70; i++) {
509 if (!(i % 16))
510 printk(KERN_DEBUG "\nSR%xx ", i >> 4);
511 vga_out8(0x3c4, i, par);
512 printk(KERN_DEBUG " %02x", vga_in8(0x3c5, par));
513 }
514
515 printk(KERN_DEBUG "\n\nCR x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC "
516 "xD xE xF");
517
518 for (i = 0; i < 0xB7; i++) {
519 if (!(i % 16))
520 printk(KERN_DEBUG "\nCR%xx ", i >> 4);
521 vga_out8(vgaCRIndex, i, par);
522 printk(KERN_DEBUG " %02x", vga_in8(vgaCRReg, par));
523 }
524
525 printk(KERN_DEBUG "\n\n");
526 }
527 #endif
528
529 /* --------------------------------------------------------------------- */
530
531 static void savage_get_default_par(struct savagefb_par *par, struct savage_reg *reg)
532 {
533 unsigned char cr3a, cr53, cr66;
534
535 vga_out16(0x3d4, 0x4838, par);
536 vga_out16(0x3d4, 0xa039, par);
537 vga_out16(0x3c4, 0x0608, par);
538
539 vga_out8(0x3d4, 0x66, par);
540 cr66 = vga_in8(0x3d5, par);
541 vga_out8(0x3d5, cr66 | 0x80, par);
542 vga_out8(0x3d4, 0x3a, par);
543 cr3a = vga_in8(0x3d5, par);
544 vga_out8(0x3d5, cr3a | 0x80, par);
545 vga_out8(0x3d4, 0x53, par);
546 cr53 = vga_in8(0x3d5, par);
547 vga_out8(0x3d5, cr53 & 0x7f, par);
548
549 vga_out8(0x3d4, 0x66, par);
550 vga_out8(0x3d5, cr66, par);
551 vga_out8(0x3d4, 0x3a, par);
552 vga_out8(0x3d5, cr3a, par);
553
554 vga_out8(0x3d4, 0x66, par);
555 vga_out8(0x3d5, cr66, par);
556 vga_out8(0x3d4, 0x3a, par);
557 vga_out8(0x3d5, cr3a, par);
558
559 /* unlock extended seq regs */
560 vga_out8(0x3c4, 0x08, par);
561 reg->SR08 = vga_in8(0x3c5, par);
562 vga_out8(0x3c5, 0x06, par);
563
564 /* now save all the extended regs we need */
565 vga_out8(0x3d4, 0x31, par);
566 reg->CR31 = vga_in8(0x3d5, par);
567 vga_out8(0x3d4, 0x32, par);
568 reg->CR32 = vga_in8(0x3d5, par);
569 vga_out8(0x3d4, 0x34, par);
570 reg->CR34 = vga_in8(0x3d5, par);
571 vga_out8(0x3d4, 0x36, par);
572 reg->CR36 = vga_in8(0x3d5, par);
573 vga_out8(0x3d4, 0x3a, par);
574 reg->CR3A = vga_in8(0x3d5, par);
575 vga_out8(0x3d4, 0x40, par);
576 reg->CR40 = vga_in8(0x3d5, par);
577 vga_out8(0x3d4, 0x42, par);
578 reg->CR42 = vga_in8(0x3d5, par);
579 vga_out8(0x3d4, 0x45, par);
580 reg->CR45 = vga_in8(0x3d5, par);
581 vga_out8(0x3d4, 0x50, par);
582 reg->CR50 = vga_in8(0x3d5, par);
583 vga_out8(0x3d4, 0x51, par);
584 reg->CR51 = vga_in8(0x3d5, par);
585 vga_out8(0x3d4, 0x53, par);
586 reg->CR53 = vga_in8(0x3d5, par);
587 vga_out8(0x3d4, 0x58, par);
588 reg->CR58 = vga_in8(0x3d5, par);
589 vga_out8(0x3d4, 0x60, par);
590 reg->CR60 = vga_in8(0x3d5, par);
591 vga_out8(0x3d4, 0x66, par);
592 reg->CR66 = vga_in8(0x3d5, par);
593 vga_out8(0x3d4, 0x67, par);
594 reg->CR67 = vga_in8(0x3d5, par);
595 vga_out8(0x3d4, 0x68, par);
596 reg->CR68 = vga_in8(0x3d5, par);
597 vga_out8(0x3d4, 0x69, par);
598 reg->CR69 = vga_in8(0x3d5, par);
599 vga_out8(0x3d4, 0x6f, par);
600 reg->CR6F = vga_in8(0x3d5, par);
601
602 vga_out8(0x3d4, 0x33, par);
603 reg->CR33 = vga_in8(0x3d5, par);
604 vga_out8(0x3d4, 0x86, par);
605 reg->CR86 = vga_in8(0x3d5, par);
606 vga_out8(0x3d4, 0x88, par);
607 reg->CR88 = vga_in8(0x3d5, par);
608 vga_out8(0x3d4, 0x90, par);
609 reg->CR90 = vga_in8(0x3d5, par);
610 vga_out8(0x3d4, 0x91, par);
611 reg->CR91 = vga_in8(0x3d5, par);
612 vga_out8(0x3d4, 0xb0, par);
613 reg->CRB0 = vga_in8(0x3d5, par) | 0x80;
614
615 /* extended mode timing regs */
616 vga_out8(0x3d4, 0x3b, par);
617 reg->CR3B = vga_in8(0x3d5, par);
618 vga_out8(0x3d4, 0x3c, par);
619 reg->CR3C = vga_in8(0x3d5, par);
620 vga_out8(0x3d4, 0x43, par);
621 reg->CR43 = vga_in8(0x3d5, par);
622 vga_out8(0x3d4, 0x5d, par);
623 reg->CR5D = vga_in8(0x3d5, par);
624 vga_out8(0x3d4, 0x5e, par);
625 reg->CR5E = vga_in8(0x3d5, par);
626 vga_out8(0x3d4, 0x65, par);
627 reg->CR65 = vga_in8(0x3d5, par);
628
629 /* save seq extended regs for DCLK PLL programming */
630 vga_out8(0x3c4, 0x0e, par);
631 reg->SR0E = vga_in8(0x3c5, par);
632 vga_out8(0x3c4, 0x0f, par);
633 reg->SR0F = vga_in8(0x3c5, par);
634 vga_out8(0x3c4, 0x10, par);
635 reg->SR10 = vga_in8(0x3c5, par);
636 vga_out8(0x3c4, 0x11, par);
637 reg->SR11 = vga_in8(0x3c5, par);
638 vga_out8(0x3c4, 0x12, par);
639 reg->SR12 = vga_in8(0x3c5, par);
640 vga_out8(0x3c4, 0x13, par);
641 reg->SR13 = vga_in8(0x3c5, par);
642 vga_out8(0x3c4, 0x29, par);
643 reg->SR29 = vga_in8(0x3c5, par);
644
645 vga_out8(0x3c4, 0x15, par);
646 reg->SR15 = vga_in8(0x3c5, par);
647 vga_out8(0x3c4, 0x30, par);
648 reg->SR30 = vga_in8(0x3c5, par);
649 vga_out8(0x3c4, 0x18, par);
650 reg->SR18 = vga_in8(0x3c5, par);
651
652 /* Save flat panel expansion regsters. */
653 if (par->chip == S3_SAVAGE_MX) {
654 int i;
655
656 for (i = 0; i < 8; i++) {
657 vga_out8(0x3c4, 0x54+i, par);
658 reg->SR54[i] = vga_in8(0x3c5, par);
659 }
660 }
661
662 vga_out8(0x3d4, 0x66, par);
663 cr66 = vga_in8(0x3d5, par);
664 vga_out8(0x3d5, cr66 | 0x80, par);
665 vga_out8(0x3d4, 0x3a, par);
666 cr3a = vga_in8(0x3d5, par);
667 vga_out8(0x3d5, cr3a | 0x80, par);
668
669 /* now save MIU regs */
670 if (par->chip != S3_SAVAGE_MX) {
671 reg->MMPR0 = savage_in32(FIFO_CONTROL_REG, par);
672 reg->MMPR1 = savage_in32(MIU_CONTROL_REG, par);
673 reg->MMPR2 = savage_in32(STREAMS_TIMEOUT_REG, par);
674 reg->MMPR3 = savage_in32(MISC_TIMEOUT_REG, par);
675 }
676
677 vga_out8(0x3d4, 0x3a, par);
678 vga_out8(0x3d5, cr3a, par);
679 vga_out8(0x3d4, 0x66, par);
680 vga_out8(0x3d5, cr66, par);
681 }
682
683 static void savage_set_default_par(struct savagefb_par *par,
684 struct savage_reg *reg)
685 {
686 unsigned char cr3a, cr53, cr66;
687
688 vga_out16(0x3d4, 0x4838, par);
689 vga_out16(0x3d4, 0xa039, par);
690 vga_out16(0x3c4, 0x0608, par);
691
692 vga_out8(0x3d4, 0x66, par);
693 cr66 = vga_in8(0x3d5, par);
694 vga_out8(0x3d5, cr66 | 0x80, par);
695 vga_out8(0x3d4, 0x3a, par);
696 cr3a = vga_in8(0x3d5, par);
697 vga_out8(0x3d5, cr3a | 0x80, par);
698 vga_out8(0x3d4, 0x53, par);
699 cr53 = vga_in8(0x3d5, par);
700 vga_out8(0x3d5, cr53 & 0x7f, par);
701
702 vga_out8(0x3d4, 0x66, par);
703 vga_out8(0x3d5, cr66, par);
704 vga_out8(0x3d4, 0x3a, par);
705 vga_out8(0x3d5, cr3a, par);
706
707 vga_out8(0x3d4, 0x66, par);
708 vga_out8(0x3d5, cr66, par);
709 vga_out8(0x3d4, 0x3a, par);
710 vga_out8(0x3d5, cr3a, par);
711
712 /* unlock extended seq regs */
713 vga_out8(0x3c4, 0x08, par);
714 vga_out8(0x3c5, reg->SR08, par);
715 vga_out8(0x3c5, 0x06, par);
716
717 /* now restore all the extended regs we need */
718 vga_out8(0x3d4, 0x31, par);
719 vga_out8(0x3d5, reg->CR31, par);
720 vga_out8(0x3d4, 0x32, par);
721 vga_out8(0x3d5, reg->CR32, par);
722 vga_out8(0x3d4, 0x34, par);
723 vga_out8(0x3d5, reg->CR34, par);
724 vga_out8(0x3d4, 0x36, par);
725 vga_out8(0x3d5,reg->CR36, par);
726 vga_out8(0x3d4, 0x3a, par);
727 vga_out8(0x3d5, reg->CR3A, par);
728 vga_out8(0x3d4, 0x40, par);
729 vga_out8(0x3d5, reg->CR40, par);
730 vga_out8(0x3d4, 0x42, par);
731 vga_out8(0x3d5, reg->CR42, par);
732 vga_out8(0x3d4, 0x45, par);
733 vga_out8(0x3d5, reg->CR45, par);
734 vga_out8(0x3d4, 0x50, par);
735 vga_out8(0x3d5, reg->CR50, par);
736 vga_out8(0x3d4, 0x51, par);
737 vga_out8(0x3d5, reg->CR51, par);
738 vga_out8(0x3d4, 0x53, par);
739 vga_out8(0x3d5, reg->CR53, par);
740 vga_out8(0x3d4, 0x58, par);
741 vga_out8(0x3d5, reg->CR58, par);
742 vga_out8(0x3d4, 0x60, par);
743 vga_out8(0x3d5, reg->CR60, par);
744 vga_out8(0x3d4, 0x66, par);
745 vga_out8(0x3d5, reg->CR66, par);
746 vga_out8(0x3d4, 0x67, par);
747 vga_out8(0x3d5, reg->CR67, par);
748 vga_out8(0x3d4, 0x68, par);
749 vga_out8(0x3d5, reg->CR68, par);
750 vga_out8(0x3d4, 0x69, par);
751 vga_out8(0x3d5, reg->CR69, par);
752 vga_out8(0x3d4, 0x6f, par);
753 vga_out8(0x3d5, reg->CR6F, par);
754
755 vga_out8(0x3d4, 0x33, par);
756 vga_out8(0x3d5, reg->CR33, par);
757 vga_out8(0x3d4, 0x86, par);
758 vga_out8(0x3d5, reg->CR86, par);
759 vga_out8(0x3d4, 0x88, par);
760 vga_out8(0x3d5, reg->CR88, par);
761 vga_out8(0x3d4, 0x90, par);
762 vga_out8(0x3d5, reg->CR90, par);
763 vga_out8(0x3d4, 0x91, par);
764 vga_out8(0x3d5, reg->CR91, par);
765 vga_out8(0x3d4, 0xb0, par);
766 vga_out8(0x3d5, reg->CRB0, par);
767
768 /* extended mode timing regs */
769 vga_out8(0x3d4, 0x3b, par);
770 vga_out8(0x3d5, reg->CR3B, par);
771 vga_out8(0x3d4, 0x3c, par);
772 vga_out8(0x3d5, reg->CR3C, par);
773 vga_out8(0x3d4, 0x43, par);
774 vga_out8(0x3d5, reg->CR43, par);
775 vga_out8(0x3d4, 0x5d, par);
776 vga_out8(0x3d5, reg->CR5D, par);
777 vga_out8(0x3d4, 0x5e, par);
778 vga_out8(0x3d5, reg->CR5E, par);
779 vga_out8(0x3d4, 0x65, par);
780 vga_out8(0x3d5, reg->CR65, par);
781
782 /* save seq extended regs for DCLK PLL programming */
783 vga_out8(0x3c4, 0x0e, par);
784 vga_out8(0x3c5, reg->SR0E, par);
785 vga_out8(0x3c4, 0x0f, par);
786 vga_out8(0x3c5, reg->SR0F, par);
787 vga_out8(0x3c4, 0x10, par);
788 vga_out8(0x3c5, reg->SR10, par);
789 vga_out8(0x3c4, 0x11, par);
790 vga_out8(0x3c5, reg->SR11, par);
791 vga_out8(0x3c4, 0x12, par);
792 vga_out8(0x3c5, reg->SR12, par);
793 vga_out8(0x3c4, 0x13, par);
794 vga_out8(0x3c5, reg->SR13, par);
795 vga_out8(0x3c4, 0x29, par);
796 vga_out8(0x3c5, reg->SR29, par);
797
798 vga_out8(0x3c4, 0x15, par);
799 vga_out8(0x3c5, reg->SR15, par);
800 vga_out8(0x3c4, 0x30, par);
801 vga_out8(0x3c5, reg->SR30, par);
802 vga_out8(0x3c4, 0x18, par);
803 vga_out8(0x3c5, reg->SR18, par);
804
805 /* Save flat panel expansion regsters. */
806 if (par->chip == S3_SAVAGE_MX) {
807 int i;
808
809 for (i = 0; i < 8; i++) {
810 vga_out8(0x3c4, 0x54+i, par);
811 vga_out8(0x3c5, reg->SR54[i], par);
812 }
813 }
814
815 vga_out8(0x3d4, 0x66, par);
816 cr66 = vga_in8(0x3d5, par);
817 vga_out8(0x3d5, cr66 | 0x80, par);
818 vga_out8(0x3d4, 0x3a, par);
819 cr3a = vga_in8(0x3d5, par);
820 vga_out8(0x3d5, cr3a | 0x80, par);
821
822 /* now save MIU regs */
823 if (par->chip != S3_SAVAGE_MX) {
824 savage_out32(FIFO_CONTROL_REG, reg->MMPR0, par);
825 savage_out32(MIU_CONTROL_REG, reg->MMPR1, par);
826 savage_out32(STREAMS_TIMEOUT_REG, reg->MMPR2, par);
827 savage_out32(MISC_TIMEOUT_REG, reg->MMPR3, par);
828 }
829
830 vga_out8(0x3d4, 0x3a, par);
831 vga_out8(0x3d5, cr3a, par);
832 vga_out8(0x3d4, 0x66, par);
833 vga_out8(0x3d5, cr66, par);
834 }
835
836 static void savage_update_var(struct fb_var_screeninfo *var,
837 const struct fb_videomode *modedb)
838 {
839 var->xres = var->xres_virtual = modedb->xres;
840 var->yres = modedb->yres;
841 if (var->yres_virtual < var->yres)
842 var->yres_virtual = var->yres;
843 var->xoffset = var->yoffset = 0;
844 var->pixclock = modedb->pixclock;
845 var->left_margin = modedb->left_margin;
846 var->right_margin = modedb->right_margin;
847 var->upper_margin = modedb->upper_margin;
848 var->lower_margin = modedb->lower_margin;
849 var->hsync_len = modedb->hsync_len;
850 var->vsync_len = modedb->vsync_len;
851 var->sync = modedb->sync;
852 var->vmode = modedb->vmode;
853 }
854
855 static int savagefb_check_var(struct fb_var_screeninfo *var,
856 struct fb_info *info)
857 {
858 struct savagefb_par *par = info->par;
859 int memlen, vramlen, mode_valid = 0;
860
861 DBG("savagefb_check_var");
862
863 var->transp.offset = 0;
864 var->transp.length = 0;
865 switch (var->bits_per_pixel) {
866 case 8:
867 var->red.offset = var->green.offset =
868 var->blue.offset = 0;
869 var->red.length = var->green.length =
870 var->blue.length = var->bits_per_pixel;
871 break;
872 case 16:
873 var->red.offset = 11;
874 var->red.length = 5;
875 var->green.offset = 5;
876 var->green.length = 6;
877 var->blue.offset = 0;
878 var->blue.length = 5;
879 break;
880 case 32:
881 var->transp.offset = 24;
882 var->transp.length = 8;
883 var->red.offset = 16;
884 var->red.length = 8;
885 var->green.offset = 8;
886 var->green.length = 8;
887 var->blue.offset = 0;
888 var->blue.length = 8;
889 break;
890
891 default:
892 return -EINVAL;
893 }
894
895 if (!info->monspecs.hfmax || !info->monspecs.vfmax ||
896 !info->monspecs.dclkmax || !fb_validate_mode(var, info))
897 mode_valid = 1;
898
899 /* calculate modeline if supported by monitor */
900 if (!mode_valid && info->monspecs.gtf) {
901 if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info))
902 mode_valid = 1;
903 }
904
905 if (!mode_valid) {
906 const struct fb_videomode *mode;
907
908 mode = fb_find_best_mode(var, &info->modelist);
909 if (mode) {
910 savage_update_var(var, mode);
911 mode_valid = 1;
912 }
913 }
914
915 if (!mode_valid && info->monspecs.modedb_len)
916 return -EINVAL;
917
918 /* Is the mode larger than the LCD panel? */
919 if (par->SavagePanelWidth &&
920 (var->xres > par->SavagePanelWidth ||
921 var->yres > par->SavagePanelHeight)) {
922 printk(KERN_INFO "Mode (%dx%d) larger than the LCD panel "
923 "(%dx%d)\n", var->xres, var->yres,
924 par->SavagePanelWidth,
925 par->SavagePanelHeight);
926 return -1;
927 }
928
929 if (var->yres_virtual < var->yres)
930 var->yres_virtual = var->yres;
931 if (var->xres_virtual < var->xres)
932 var->xres_virtual = var->xres;
933
934 vramlen = info->fix.smem_len;
935
936 memlen = var->xres_virtual * var->bits_per_pixel *
937 var->yres_virtual / 8;
938 if (memlen > vramlen) {
939 var->yres_virtual = vramlen * 8 /
940 (var->xres_virtual * var->bits_per_pixel);
941 memlen = var->xres_virtual * var->bits_per_pixel *
942 var->yres_virtual / 8;
943 }
944
945 /* we must round yres/xres down, we already rounded y/xres_virtual up
946 if it was possible. We should return -EINVAL, but I disagree */
947 if (var->yres_virtual < var->yres)
948 var->yres = var->yres_virtual;
949 if (var->xres_virtual < var->xres)
950 var->xres = var->xres_virtual;
951 if (var->xoffset + var->xres > var->xres_virtual)
952 var->xoffset = var->xres_virtual - var->xres;
953 if (var->yoffset + var->yres > var->yres_virtual)
954 var->yoffset = var->yres_virtual - var->yres;
955
956 return 0;
957 }
958
959
960 static int savagefb_decode_var(struct fb_var_screeninfo *var,
961 struct savagefb_par *par,
962 struct savage_reg *reg)
963 {
964 struct xtimings timings;
965 int width, dclk, i, j; /*, refresh; */
966 unsigned int m, n, r;
967 unsigned char tmp = 0;
968 unsigned int pixclock = var->pixclock;
969
970 DBG("savagefb_decode_var");
971
972 memset(&timings, 0, sizeof(timings));
973
974 if (!pixclock) pixclock = 10000; /* 10ns = 100MHz */
975 timings.Clock = 1000000000 / pixclock;
976 if (timings.Clock < 1) timings.Clock = 1;
977 timings.dblscan = var->vmode & FB_VMODE_DOUBLE;
978 timings.interlaced = var->vmode & FB_VMODE_INTERLACED;
979 timings.HDisplay = var->xres;
980 timings.HSyncStart = timings.HDisplay + var->right_margin;
981 timings.HSyncEnd = timings.HSyncStart + var->hsync_len;
982 timings.HTotal = timings.HSyncEnd + var->left_margin;
983 timings.VDisplay = var->yres;
984 timings.VSyncStart = timings.VDisplay + var->lower_margin;
985 timings.VSyncEnd = timings.VSyncStart + var->vsync_len;
986 timings.VTotal = timings.VSyncEnd + var->upper_margin;
987 timings.sync = var->sync;
988
989
990 par->depth = var->bits_per_pixel;
991 par->vwidth = var->xres_virtual;
992
993 if (var->bits_per_pixel == 16 && par->chip == S3_SAVAGE3D) {
994 timings.HDisplay *= 2;
995 timings.HSyncStart *= 2;
996 timings.HSyncEnd *= 2;
997 timings.HTotal *= 2;
998 }
999
1000 /*
1001 * This will allocate the datastructure and initialize all of the
1002 * generic VGA registers.
1003 */
1004 vgaHWInit(var, par, &timings, reg);
1005
1006 /* We need to set CR67 whether or not we use the BIOS. */
1007
1008 dclk = timings.Clock;
1009 reg->CR67 = 0x00;
1010
1011 switch(var->bits_per_pixel) {
1012 case 8:
1013 if ((par->chip == S3_SAVAGE2000) && (dclk >= 230000))
1014 reg->CR67 = 0x10; /* 8bpp, 2 pixels/clock */
1015 else
1016 reg->CR67 = 0x00; /* 8bpp, 1 pixel/clock */
1017 break;
1018 case 15:
1019 if (S3_SAVAGE_MOBILE_SERIES(par->chip) ||
1020 ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)))
1021 reg->CR67 = 0x30; /* 15bpp, 2 pixel/clock */
1022 else
1023 reg->CR67 = 0x20; /* 15bpp, 1 pixels/clock */
1024 break;
1025 case 16:
1026 if (S3_SAVAGE_MOBILE_SERIES(par->chip) ||
1027 ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)))
1028 reg->CR67 = 0x50; /* 16bpp, 2 pixel/clock */
1029 else
1030 reg->CR67 = 0x40; /* 16bpp, 1 pixels/clock */
1031 break;
1032 case 24:
1033 reg->CR67 = 0x70;
1034 break;
1035 case 32:
1036 reg->CR67 = 0xd0;
1037 break;
1038 }
1039
1040 /*
1041 * Either BIOS use is disabled, or we failed to find a suitable
1042 * match. Fall back to traditional register-crunching.
1043 */
1044
1045 vga_out8(0x3d4, 0x3a, par);
1046 tmp = vga_in8(0x3d5, par);
1047 if (1 /*FIXME:psav->pci_burst*/)
1048 reg->CR3A = (tmp & 0x7f) | 0x15;
1049 else
1050 reg->CR3A = tmp | 0x95;
1051
1052 reg->CR53 = 0x00;
1053 reg->CR31 = 0x8c;
1054 reg->CR66 = 0x89;
1055
1056 vga_out8(0x3d4, 0x58, par);
1057 reg->CR58 = vga_in8(0x3d5, par) & 0x80;
1058 reg->CR58 |= 0x13;
1059
1060 reg->SR15 = 0x03 | 0x80;
1061 reg->SR18 = 0x00;
1062 reg->CR43 = reg->CR45 = reg->CR65 = 0x00;
1063
1064 vga_out8(0x3d4, 0x40, par);
1065 reg->CR40 = vga_in8(0x3d5, par) & ~0x01;
1066
1067 reg->MMPR0 = 0x010400;
1068 reg->MMPR1 = 0x00;
1069 reg->MMPR2 = 0x0808;
1070 reg->MMPR3 = 0x08080810;
1071
1072 SavageCalcClock(dclk, 1, 1, 127, 0, 4, 180000, 360000, &m, &n, &r);
1073 /* m = 107; n = 4; r = 2; */
1074
1075 if (par->MCLK <= 0) {
1076 reg->SR10 = 255;
1077 reg->SR11 = 255;
1078 } else {
1079 common_calc_clock(par->MCLK, 1, 1, 31, 0, 3, 135000, 270000,
1080 &reg->SR11, &reg->SR10);
1081 /* reg->SR10 = 80; // MCLK == 286000 */
1082 /* reg->SR11 = 125; */
1083 }
1084
1085 reg->SR12 = (r << 6) | (n & 0x3f);
1086 reg->SR13 = m & 0xff;
1087 reg->SR29 = (r & 4) | (m & 0x100) >> 5 | (n & 0x40) >> 2;
1088
1089 if (var->bits_per_pixel < 24)
1090 reg->MMPR0 -= 0x8000;
1091 else
1092 reg->MMPR0 -= 0x4000;
1093
1094 if (timings.interlaced)
1095 reg->CR42 = 0x20;
1096 else
1097 reg->CR42 = 0x00;
1098
1099 reg->CR34 = 0x10; /* display fifo */
1100
1101 i = ((((timings.HTotal >> 3) - 5) & 0x100) >> 8) |
1102 ((((timings.HDisplay >> 3) - 1) & 0x100) >> 7) |
1103 ((((timings.HSyncStart >> 3) - 1) & 0x100) >> 6) |
1104 ((timings.HSyncStart & 0x800) >> 7);
1105
1106 if ((timings.HSyncEnd >> 3) - (timings.HSyncStart >> 3) > 64)
1107 i |= 0x08;
1108 if ((timings.HSyncEnd >> 3) - (timings.HSyncStart >> 3) > 32)
1109 i |= 0x20;
1110
1111 j = (reg->CRTC[0] + ((i & 0x01) << 8) +
1112 reg->CRTC[4] + ((i & 0x10) << 4) + 1) / 2;
1113
1114 if (j - (reg->CRTC[4] + ((i & 0x10) << 4)) < 4) {
1115 if (reg->CRTC[4] + ((i & 0x10) << 4) + 4 <=
1116 reg->CRTC[0] + ((i & 0x01) << 8))
1117 j = reg->CRTC[4] + ((i & 0x10) << 4) + 4;
1118 else
1119 j = reg->CRTC[0] + ((i & 0x01) << 8) + 1;
1120 }
1121
1122 reg->CR3B = j & 0xff;
1123 i |= (j & 0x100) >> 2;
1124 reg->CR3C = (reg->CRTC[0] + ((i & 0x01) << 8)) / 2;
1125 reg->CR5D = i;
1126 reg->CR5E = (((timings.VTotal - 2) & 0x400) >> 10) |
1127 (((timings.VDisplay - 1) & 0x400) >> 9) |
1128 (((timings.VSyncStart) & 0x400) >> 8) |
1129 (((timings.VSyncStart) & 0x400) >> 6) | 0x40;
1130 width = (var->xres_virtual * ((var->bits_per_pixel+7) / 8)) >> 3;
1131 reg->CR91 = reg->CRTC[19] = 0xff & width;
1132 reg->CR51 = (0x300 & width) >> 4;
1133 reg->CR90 = 0x80 | (width >> 8);
1134 reg->MiscOutReg |= 0x0c;
1135
1136 /* Set frame buffer description. */
1137
1138 if (var->bits_per_pixel <= 8)
1139 reg->CR50 = 0;
1140 else if (var->bits_per_pixel <= 16)
1141 reg->CR50 = 0x10;
1142 else
1143 reg->CR50 = 0x30;
1144
1145 if (var->xres_virtual <= 640)
1146 reg->CR50 |= 0x40;
1147 else if (var->xres_virtual == 800)
1148 reg->CR50 |= 0x80;
1149 else if (var->xres_virtual == 1024)
1150 reg->CR50 |= 0x00;
1151 else if (var->xres_virtual == 1152)
1152 reg->CR50 |= 0x01;
1153 else if (var->xres_virtual == 1280)
1154 reg->CR50 |= 0xc0;
1155 else if (var->xres_virtual == 1600)
1156 reg->CR50 |= 0x81;
1157 else
1158 reg->CR50 |= 0xc1; /* Use GBD */
1159
1160 if (par->chip == S3_SAVAGE2000)
1161 reg->CR33 = 0x08;
1162 else
1163 reg->CR33 = 0x20;
1164
1165 reg->CRTC[0x17] = 0xeb;
1166
1167 reg->CR67 |= 1;
1168
1169 vga_out8(0x3d4, 0x36, par);
1170 reg->CR36 = vga_in8(0x3d5, par);
1171 vga_out8(0x3d4, 0x68, par);
1172 reg->CR68 = vga_in8(0x3d5, par);
1173 reg->CR69 = 0;
1174 vga_out8(0x3d4, 0x6f, par);
1175 reg->CR6F = vga_in8(0x3d5, par);
1176 vga_out8(0x3d4, 0x86, par);
1177 reg->CR86 = vga_in8(0x3d5, par);
1178 vga_out8(0x3d4, 0x88, par);
1179 reg->CR88 = vga_in8(0x3d5, par) | 0x08;
1180 vga_out8(0x3d4, 0xb0, par);
1181 reg->CRB0 = vga_in8(0x3d5, par) | 0x80;
1182
1183 return 0;
1184 }
1185
1186 /* --------------------------------------------------------------------- */
1187
1188 /*
1189 * Set a single color register. Return != 0 for invalid regno.
1190 */
1191 static int savagefb_setcolreg(unsigned regno,
1192 unsigned red,
1193 unsigned green,
1194 unsigned blue,
1195 unsigned transp,
1196 struct fb_info *info)
1197 {
1198 struct savagefb_par *par = info->par;
1199
1200 if (regno >= NR_PALETTE)
1201 return -EINVAL;
1202
1203 par->palette[regno].red = red;
1204 par->palette[regno].green = green;
1205 par->palette[regno].blue = blue;
1206 par->palette[regno].transp = transp;
1207
1208 switch (info->var.bits_per_pixel) {
1209 case 8:
1210 vga_out8(0x3c8, regno, par);
1211
1212 vga_out8(0x3c9, red >> 10, par);
1213 vga_out8(0x3c9, green >> 10, par);
1214 vga_out8(0x3c9, blue >> 10, par);
1215 break;
1216
1217 case 16:
1218 if (regno < 16)
1219 ((u32 *)info->pseudo_palette)[regno] =
1220 ((red & 0xf800) ) |
1221 ((green & 0xfc00) >> 5) |
1222 ((blue & 0xf800) >> 11);
1223 break;
1224
1225 case 24:
1226 if (regno < 16)
1227 ((u32 *)info->pseudo_palette)[regno] =
1228 ((red & 0xff00) << 8) |
1229 ((green & 0xff00) ) |
1230 ((blue & 0xff00) >> 8);
1231 break;
1232 case 32:
1233 if (regno < 16)
1234 ((u32 *)info->pseudo_palette)[regno] =
1235 ((transp & 0xff00) << 16) |
1236 ((red & 0xff00) << 8) |
1237 ((green & 0xff00) ) |
1238 ((blue & 0xff00) >> 8);
1239 break;
1240
1241 default:
1242 return 1;
1243 }
1244
1245 return 0;
1246 }
1247
1248 static void savagefb_set_par_int(struct savagefb_par *par, struct savage_reg *reg)
1249 {
1250 unsigned char tmp, cr3a, cr66, cr67;
1251
1252 DBG("savagefb_set_par_int");
1253
1254 par->SavageWaitIdle(par);
1255
1256 vga_out8(0x3c2, 0x23, par);
1257
1258 vga_out16(0x3d4, 0x4838, par);
1259 vga_out16(0x3d4, 0xa539, par);
1260 vga_out16(0x3c4, 0x0608, par);
1261
1262 vgaHWProtect(par, 1);
1263
1264 /*
1265 * Some Savage/MX and /IX systems go nuts when trying to exit the
1266 * server after WindowMaker has displayed a gradient background. I
1267 * haven't been able to find what causes it, but a non-destructive
1268 * switch to mode 3 here seems to eliminate the issue.
1269 */
1270
1271 VerticalRetraceWait(par);
1272 vga_out8(0x3d4, 0x67, par);
1273 cr67 = vga_in8(0x3d5, par);
1274 vga_out8(0x3d5, cr67/*par->CR67*/ & ~0x0c, par); /* no STREAMS yet */
1275
1276 vga_out8(0x3d4, 0x23, par);
1277 vga_out8(0x3d5, 0x00, par);
1278 vga_out8(0x3d4, 0x26, par);
1279 vga_out8(0x3d5, 0x00, par);
1280
1281 /* restore extended regs */
1282 vga_out8(0x3d4, 0x66, par);
1283 vga_out8(0x3d5, reg->CR66, par);
1284 vga_out8(0x3d4, 0x3a, par);
1285 vga_out8(0x3d5, reg->CR3A, par);
1286 vga_out8(0x3d4, 0x31, par);
1287 vga_out8(0x3d5, reg->CR31, par);
1288 vga_out8(0x3d4, 0x32, par);
1289 vga_out8(0x3d5, reg->CR32, par);
1290 vga_out8(0x3d4, 0x58, par);
1291 vga_out8(0x3d5, reg->CR58, par);
1292 vga_out8(0x3d4, 0x53, par);
1293 vga_out8(0x3d5, reg->CR53 & 0x7f, par);
1294
1295 vga_out16(0x3c4, 0x0608, par);
1296
1297 /* Restore DCLK registers. */
1298
1299 vga_out8(0x3c4, 0x0e, par);
1300 vga_out8(0x3c5, reg->SR0E, par);
1301 vga_out8(0x3c4, 0x0f, par);
1302 vga_out8(0x3c5, reg->SR0F, par);
1303 vga_out8(0x3c4, 0x29, par);
1304 vga_out8(0x3c5, reg->SR29, par);
1305 vga_out8(0x3c4, 0x15, par);
1306 vga_out8(0x3c5, reg->SR15, par);
1307
1308 /* Restore flat panel expansion regsters. */
1309 if (par->chip == S3_SAVAGE_MX) {
1310 int i;
1311
1312 for (i = 0; i < 8; i++) {
1313 vga_out8(0x3c4, 0x54+i, par);
1314 vga_out8(0x3c5, reg->SR54[i], par);
1315 }
1316 }
1317
1318 vgaHWRestore (par, reg);
1319
1320 /* extended mode timing registers */
1321 vga_out8(0x3d4, 0x53, par);
1322 vga_out8(0x3d5, reg->CR53, par);
1323 vga_out8(0x3d4, 0x5d, par);
1324 vga_out8(0x3d5, reg->CR5D, par);
1325 vga_out8(0x3d4, 0x5e, par);
1326 vga_out8(0x3d5, reg->CR5E, par);
1327 vga_out8(0x3d4, 0x3b, par);
1328 vga_out8(0x3d5, reg->CR3B, par);
1329 vga_out8(0x3d4, 0x3c, par);
1330 vga_out8(0x3d5, reg->CR3C, par);
1331 vga_out8(0x3d4, 0x43, par);
1332 vga_out8(0x3d5, reg->CR43, par);
1333 vga_out8(0x3d4, 0x65, par);
1334 vga_out8(0x3d5, reg->CR65, par);
1335
1336 /* restore the desired video mode with cr67 */
1337 vga_out8(0x3d4, 0x67, par);
1338 /* following part not present in X11 driver */
1339 cr67 = vga_in8(0x3d5, par) & 0xf;
1340 vga_out8(0x3d5, 0x50 | cr67, par);
1341 udelay(10000);
1342 vga_out8(0x3d4, 0x67, par);
1343 /* end of part */
1344 vga_out8(0x3d5, reg->CR67 & ~0x0c, par);
1345
1346 /* other mode timing and extended regs */
1347 vga_out8(0x3d4, 0x34, par);
1348 vga_out8(0x3d5, reg->CR34, par);
1349 vga_out8(0x3d4, 0x40, par);
1350 vga_out8(0x3d5, reg->CR40, par);
1351 vga_out8(0x3d4, 0x42, par);
1352 vga_out8(0x3d5, reg->CR42, par);
1353 vga_out8(0x3d4, 0x45, par);
1354 vga_out8(0x3d5, reg->CR45, par);
1355 vga_out8(0x3d4, 0x50, par);
1356 vga_out8(0x3d5, reg->CR50, par);
1357 vga_out8(0x3d4, 0x51, par);
1358 vga_out8(0x3d5, reg->CR51, par);
1359
1360 /* memory timings */
1361 vga_out8(0x3d4, 0x36, par);
1362 vga_out8(0x3d5, reg->CR36, par);
1363 vga_out8(0x3d4, 0x60, par);
1364 vga_out8(0x3d5, reg->CR60, par);
1365 vga_out8(0x3d4, 0x68, par);
1366 vga_out8(0x3d5, reg->CR68, par);
1367 vga_out8(0x3d4, 0x69, par);
1368 vga_out8(0x3d5, reg->CR69, par);
1369 vga_out8(0x3d4, 0x6f, par);
1370 vga_out8(0x3d5, reg->CR6F, par);
1371
1372 vga_out8(0x3d4, 0x33, par);
1373 vga_out8(0x3d5, reg->CR33, par);
1374 vga_out8(0x3d4, 0x86, par);
1375 vga_out8(0x3d5, reg->CR86, par);
1376 vga_out8(0x3d4, 0x88, par);
1377 vga_out8(0x3d5, reg->CR88, par);
1378 vga_out8(0x3d4, 0x90, par);
1379 vga_out8(0x3d5, reg->CR90, par);
1380 vga_out8(0x3d4, 0x91, par);
1381 vga_out8(0x3d5, reg->CR91, par);
1382
1383 if (par->chip == S3_SAVAGE4) {
1384 vga_out8(0x3d4, 0xb0, par);
1385 vga_out8(0x3d5, reg->CRB0, par);
1386 }
1387
1388 vga_out8(0x3d4, 0x32, par);
1389 vga_out8(0x3d5, reg->CR32, par);
1390
1391 /* unlock extended seq regs */
1392 vga_out8(0x3c4, 0x08, par);
1393 vga_out8(0x3c5, 0x06, par);
1394
1395 /* Restore extended sequencer regs for MCLK. SR10 == 255 indicates
1396 * that we should leave the default SR10 and SR11 values there.
1397 */
1398 if (reg->SR10 != 255) {
1399 vga_out8(0x3c4, 0x10, par);
1400 vga_out8(0x3c5, reg->SR10, par);
1401 vga_out8(0x3c4, 0x11, par);
1402 vga_out8(0x3c5, reg->SR11, par);
1403 }
1404
1405 /* restore extended seq regs for dclk */
1406 vga_out8(0x3c4, 0x0e, par);
1407 vga_out8(0x3c5, reg->SR0E, par);
1408 vga_out8(0x3c4, 0x0f, par);
1409 vga_out8(0x3c5, reg->SR0F, par);
1410 vga_out8(0x3c4, 0x12, par);
1411 vga_out8(0x3c5, reg->SR12, par);
1412 vga_out8(0x3c4, 0x13, par);
1413 vga_out8(0x3c5, reg->SR13, par);
1414 vga_out8(0x3c4, 0x29, par);
1415 vga_out8(0x3c5, reg->SR29, par);
1416 vga_out8(0x3c4, 0x18, par);
1417 vga_out8(0x3c5, reg->SR18, par);
1418
1419 /* load new m, n pll values for dclk & mclk */
1420 vga_out8(0x3c4, 0x15, par);
1421 tmp = vga_in8(0x3c5, par) & ~0x21;
1422
1423 vga_out8(0x3c5, tmp | 0x03, par);
1424 vga_out8(0x3c5, tmp | 0x23, par);
1425 vga_out8(0x3c5, tmp | 0x03, par);
1426 vga_out8(0x3c5, reg->SR15, par);
1427 udelay(100);
1428
1429 vga_out8(0x3c4, 0x30, par);
1430 vga_out8(0x3c5, reg->SR30, par);
1431 vga_out8(0x3c4, 0x08, par);
1432 vga_out8(0x3c5, reg->SR08, par);
1433
1434 /* now write out cr67 in full, possibly starting STREAMS */
1435 VerticalRetraceWait(par);
1436 vga_out8(0x3d4, 0x67, par);
1437 vga_out8(0x3d5, reg->CR67, par);
1438
1439 vga_out8(0x3d4, 0x66, par);
1440 cr66 = vga_in8(0x3d5, par);
1441 vga_out8(0x3d5, cr66 | 0x80, par);
1442 vga_out8(0x3d4, 0x3a, par);
1443 cr3a = vga_in8(0x3d5, par);
1444 vga_out8(0x3d5, cr3a | 0x80, par);
1445
1446 if (par->chip != S3_SAVAGE_MX) {
1447 VerticalRetraceWait(par);
1448 savage_out32(FIFO_CONTROL_REG, reg->MMPR0, par);
1449 par->SavageWaitIdle(par);
1450 savage_out32(MIU_CONTROL_REG, reg->MMPR1, par);
1451 par->SavageWaitIdle(par);
1452 savage_out32(STREAMS_TIMEOUT_REG, reg->MMPR2, par);
1453 par->SavageWaitIdle(par);
1454 savage_out32(MISC_TIMEOUT_REG, reg->MMPR3, par);
1455 }
1456
1457 vga_out8(0x3d4, 0x66, par);
1458 vga_out8(0x3d5, cr66, par);
1459 vga_out8(0x3d4, 0x3a, par);
1460 vga_out8(0x3d5, cr3a, par);
1461
1462 SavageSetup2DEngine(par);
1463 vgaHWProtect(par, 0);
1464 }
1465
1466 static void savagefb_update_start(struct savagefb_par *par,
1467 struct fb_var_screeninfo *var)
1468 {
1469 int base;
1470
1471 base = ((var->yoffset * var->xres_virtual + (var->xoffset & ~1))
1472 * ((var->bits_per_pixel+7) / 8)) >> 2;
1473
1474 /* now program the start address registers */
1475 vga_out16(0x3d4, (base & 0x00ff00) | 0x0c, par);
1476 vga_out16(0x3d4, ((base & 0x00ff) << 8) | 0x0d, par);
1477 vga_out8(0x3d4, 0x69, par);
1478 vga_out8(0x3d5, (base & 0x7f0000) >> 16, par);
1479 }
1480
1481
1482 static void savagefb_set_fix(struct fb_info *info)
1483 {
1484 info->fix.line_length = info->var.xres_virtual *
1485 info->var.bits_per_pixel / 8;
1486
1487 if (info->var.bits_per_pixel == 8) {
1488 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
1489 info->fix.xpanstep = 4;
1490 } else {
1491 info->fix.visual = FB_VISUAL_TRUECOLOR;
1492 info->fix.xpanstep = 2;
1493 }
1494
1495 }
1496
1497 static int savagefb_set_par(struct fb_info *info)
1498 {
1499 struct savagefb_par *par = info->par;
1500 struct fb_var_screeninfo *var = &info->var;
1501 int err;
1502
1503 DBG("savagefb_set_par");
1504 err = savagefb_decode_var(var, par, &par->state);
1505 if (err)
1506 return err;
1507
1508 if (par->dacSpeedBpp <= 0) {
1509 if (var->bits_per_pixel > 24)
1510 par->dacSpeedBpp = par->clock[3];
1511 else if (var->bits_per_pixel >= 24)
1512 par->dacSpeedBpp = par->clock[2];
1513 else if ((var->bits_per_pixel > 8) && (var->bits_per_pixel < 24))
1514 par->dacSpeedBpp = par->clock[1];
1515 else if (var->bits_per_pixel <= 8)
1516 par->dacSpeedBpp = par->clock[0];
1517 }
1518
1519 /* Set ramdac limits */
1520 par->maxClock = par->dacSpeedBpp;
1521 par->minClock = 10000;
1522
1523 savagefb_set_par_int(par, &par->state);
1524 fb_set_cmap(&info->cmap, info);
1525 savagefb_set_fix(info);
1526 savagefb_set_clip(info);
1527
1528 SavagePrintRegs();
1529 return 0;
1530 }
1531
1532 /*
1533 * Pan or Wrap the Display
1534 */
1535 static int savagefb_pan_display(struct fb_var_screeninfo *var,
1536 struct fb_info *info)
1537 {
1538 struct savagefb_par *par = info->par;
1539
1540 savagefb_update_start(par, var);
1541 return 0;
1542 }
1543
1544 static int savagefb_blank(int blank, struct fb_info *info)
1545 {
1546 struct savagefb_par *par = info->par;
1547 u8 sr8 = 0, srd = 0;
1548
1549 if (par->display_type == DISP_CRT) {
1550 vga_out8(0x3c4, 0x08, par);
1551 sr8 = vga_in8(0x3c5, par);
1552 sr8 |= 0x06;
1553 vga_out8(0x3c5, sr8, par);
1554 vga_out8(0x3c4, 0x0d, par);
1555 srd = vga_in8(0x3c5, par);
1556 srd &= 0x03;
1557
1558 switch (blank) {
1559 case FB_BLANK_UNBLANK:
1560 case FB_BLANK_NORMAL:
1561 break;
1562 case FB_BLANK_VSYNC_SUSPEND:
1563 srd |= 0x10;
1564 break;
1565 case FB_BLANK_HSYNC_SUSPEND:
1566 srd |= 0x40;
1567 break;
1568 case FB_BLANK_POWERDOWN:
1569 srd |= 0x50;
1570 break;
1571 }
1572
1573 vga_out8(0x3c4, 0x0d, par);
1574 vga_out8(0x3c5, srd, par);
1575 }
1576
1577 if (par->display_type == DISP_LCD ||
1578 par->display_type == DISP_DFP) {
1579 switch(blank) {
1580 case FB_BLANK_UNBLANK:
1581 case FB_BLANK_NORMAL:
1582 vga_out8(0x3c4, 0x31, par); /* SR31 bit 4 - FP enable */
1583 vga_out8(0x3c5, vga_in8(0x3c5, par) | 0x10, par);
1584 break;
1585 case FB_BLANK_VSYNC_SUSPEND:
1586 case FB_BLANK_HSYNC_SUSPEND:
1587 case FB_BLANK_POWERDOWN:
1588 vga_out8(0x3c4, 0x31, par); /* SR31 bit 4 - FP enable */
1589 vga_out8(0x3c5, vga_in8(0x3c5, par) & ~0x10, par);
1590 break;
1591 }
1592 }
1593
1594 return (blank == FB_BLANK_NORMAL) ? 1 : 0;
1595 }
1596
1597 static void savagefb_save_state(struct fb_info *info)
1598 {
1599 struct savagefb_par *par = info->par;
1600
1601 savage_get_default_par(par, &par->save);
1602 }
1603
1604 static void savagefb_restore_state(struct fb_info *info)
1605 {
1606 struct savagefb_par *par = info->par;
1607
1608 savagefb_blank(FB_BLANK_POWERDOWN, info);
1609 savage_set_default_par(par, &par->save);
1610 savagefb_blank(FB_BLANK_UNBLANK, info);
1611 }
1612
1613 static struct fb_ops savagefb_ops = {
1614 .owner = THIS_MODULE,
1615 .fb_check_var = savagefb_check_var,
1616 .fb_set_par = savagefb_set_par,
1617 .fb_setcolreg = savagefb_setcolreg,
1618 .fb_pan_display = savagefb_pan_display,
1619 .fb_blank = savagefb_blank,
1620 .fb_save_state = savagefb_save_state,
1621 .fb_restore_state = savagefb_restore_state,
1622 #if defined(CONFIG_FB_SAVAGE_ACCEL)
1623 .fb_fillrect = savagefb_fillrect,
1624 .fb_copyarea = savagefb_copyarea,
1625 .fb_imageblit = savagefb_imageblit,
1626 .fb_sync = savagefb_sync,
1627 #else
1628 .fb_fillrect = cfb_fillrect,
1629 .fb_copyarea = cfb_copyarea,
1630 .fb_imageblit = cfb_imageblit,
1631 #endif
1632 };
1633
1634 /* --------------------------------------------------------------------- */
1635
1636 static struct fb_var_screeninfo __devinitdata savagefb_var800x600x8 = {
1637 .accel_flags = FB_ACCELF_TEXT,
1638 .xres = 800,
1639 .yres = 600,
1640 .xres_virtual = 800,
1641 .yres_virtual = 600,
1642 .bits_per_pixel = 8,
1643 .pixclock = 25000,
1644 .left_margin = 88,
1645 .right_margin = 40,
1646 .upper_margin = 23,
1647 .lower_margin = 1,
1648 .hsync_len = 128,
1649 .vsync_len = 4,
1650 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
1651 .vmode = FB_VMODE_NONINTERLACED
1652 };
1653
1654 static void savage_enable_mmio(struct savagefb_par *par)
1655 {
1656 unsigned char val;
1657
1658 DBG("savage_enable_mmio\n");
1659
1660 val = vga_in8(0x3c3, par);
1661 vga_out8(0x3c3, val | 0x01, par);
1662 val = vga_in8(0x3cc, par);
1663 vga_out8(0x3c2, val | 0x01, par);
1664
1665 if (par->chip >= S3_SAVAGE4) {
1666 vga_out8(0x3d4, 0x40, par);
1667 val = vga_in8(0x3d5, par);
1668 vga_out8(0x3d5, val | 1, par);
1669 }
1670 }
1671
1672
1673 static void savage_disable_mmio(struct savagefb_par *par)
1674 {
1675 unsigned char val;
1676
1677 DBG("savage_disable_mmio\n");
1678
1679 if (par->chip >= S3_SAVAGE4) {
1680 vga_out8(0x3d4, 0x40, par);
1681 val = vga_in8(0x3d5, par);
1682 vga_out8(0x3d5, val | 1, par);
1683 }
1684 }
1685
1686
1687 static int __devinit savage_map_mmio(struct fb_info *info)
1688 {
1689 struct savagefb_par *par = info->par;
1690 DBG("savage_map_mmio");
1691
1692 if (S3_SAVAGE3D_SERIES(par->chip))
1693 par->mmio.pbase = pci_resource_start(par->pcidev, 0) +
1694 SAVAGE_NEWMMIO_REGBASE_S3;
1695 else
1696 par->mmio.pbase = pci_resource_start(par->pcidev, 0) +
1697 SAVAGE_NEWMMIO_REGBASE_S4;
1698
1699 par->mmio.len = SAVAGE_NEWMMIO_REGSIZE;
1700
1701 par->mmio.vbase = ioremap(par->mmio.pbase, par->mmio.len);
1702 if (!par->mmio.vbase) {
1703 printk("savagefb: unable to map memory mapped IO\n");
1704 return -ENOMEM;
1705 } else
1706 printk(KERN_INFO "savagefb: mapped io at %p\n",
1707 par->mmio.vbase);
1708
1709 info->fix.mmio_start = par->mmio.pbase;
1710 info->fix.mmio_len = par->mmio.len;
1711
1712 par->bci_base = (u32 __iomem *)(par->mmio.vbase + BCI_BUFFER_OFFSET);
1713 par->bci_ptr = 0;
1714
1715 savage_enable_mmio(par);
1716
1717 return 0;
1718 }
1719
1720 static void savage_unmap_mmio(struct fb_info *info)
1721 {
1722 struct savagefb_par *par = info->par;
1723 DBG("savage_unmap_mmio");
1724
1725 savage_disable_mmio(par);
1726
1727 if (par->mmio.vbase) {
1728 iounmap(par->mmio.vbase);
1729 par->mmio.vbase = NULL;
1730 }
1731 }
1732
1733 static int __devinit savage_map_video(struct fb_info *info,
1734 int video_len)
1735 {
1736 struct savagefb_par *par = info->par;
1737 int resource;
1738
1739 DBG("savage_map_video");
1740
1741 if (S3_SAVAGE3D_SERIES(par->chip))
1742 resource = 0;
1743 else
1744 resource = 1;
1745
1746 par->video.pbase = pci_resource_start(par->pcidev, resource);
1747 par->video.len = video_len;
1748 par->video.vbase = ioremap(par->video.pbase, par->video.len);
1749
1750 if (!par->video.vbase) {
1751 printk("savagefb: unable to map screen memory\n");
1752 return -ENOMEM;
1753 } else
1754 printk(KERN_INFO "savagefb: mapped framebuffer at %p, "
1755 "pbase == %x\n", par->video.vbase, par->video.pbase);
1756
1757 info->fix.smem_start = par->video.pbase;
1758 info->fix.smem_len = par->video.len - par->cob_size;
1759 info->screen_base = par->video.vbase;
1760
1761 #ifdef CONFIG_MTRR
1762 par->video.mtrr = mtrr_add(par->video.pbase, video_len,
1763 MTRR_TYPE_WRCOMB, 1);
1764 #endif
1765
1766 /* Clear framebuffer, it's all white in memory after boot */
1767 memset_io(par->video.vbase, 0, par->video.len);
1768
1769 return 0;
1770 }
1771
1772 static void savage_unmap_video(struct fb_info *info)
1773 {
1774 struct savagefb_par *par = info->par;
1775
1776 DBG("savage_unmap_video");
1777
1778 if (par->video.vbase) {
1779 #ifdef CONFIG_MTRR
1780 mtrr_del(par->video.mtrr, par->video.pbase, par->video.len);
1781 #endif
1782
1783 iounmap(par->video.vbase);
1784 par->video.vbase = NULL;
1785 info->screen_base = NULL;
1786 }
1787 }
1788
1789 static int savage_init_hw(struct savagefb_par *par)
1790 {
1791 unsigned char config1, m, n, n1, n2, sr8, cr3f, cr66 = 0, tmp;
1792
1793 static unsigned char RamSavage3D[] = { 8, 4, 4, 2 };
1794 static unsigned char RamSavage4[] = { 2, 4, 8, 12, 16, 32, 64, 32 };
1795 static unsigned char RamSavageMX[] = { 2, 8, 4, 16, 8, 16, 4, 16 };
1796 static unsigned char RamSavageNB[] = { 0, 2, 4, 8, 16, 32, 2, 2 };
1797 int videoRam, videoRambytes, dvi;
1798
1799 DBG("savage_init_hw");
1800
1801 /* unprotect CRTC[0-7] */
1802 vga_out8(0x3d4, 0x11, par);
1803 tmp = vga_in8(0x3d5, par);
1804 vga_out8(0x3d5, tmp & 0x7f, par);
1805
1806 /* unlock extended regs */
1807 vga_out16(0x3d4, 0x4838, par);
1808 vga_out16(0x3d4, 0xa039, par);
1809 vga_out16(0x3c4, 0x0608, par);
1810
1811 vga_out8(0x3d4, 0x40, par);
1812 tmp = vga_in8(0x3d5, par);
1813 vga_out8(0x3d5, tmp & ~0x01, par);
1814
1815 /* unlock sys regs */
1816 vga_out8(0x3d4, 0x38, par);
1817 vga_out8(0x3d5, 0x48, par);
1818
1819 /* Unlock system registers. */
1820 vga_out16(0x3d4, 0x4838, par);
1821
1822 /* Next go on to detect amount of installed ram */
1823
1824 vga_out8(0x3d4, 0x36, par); /* for register CR36 (CONFG_REG1), */
1825 config1 = vga_in8(0x3d5, par); /* get amount of vram installed */
1826
1827 /* Compute the amount of video memory and offscreen memory. */
1828
1829 switch (par->chip) {
1830 case S3_SAVAGE3D:
1831 videoRam = RamSavage3D[(config1 & 0xC0) >> 6 ] * 1024;
1832 break;
1833
1834 case S3_SAVAGE4:
1835 /*
1836 * The Savage4 has one ugly special case to consider. On
1837 * systems with 4 banks of 2Mx32 SDRAM, the BIOS says 4MB
1838 * when it really means 8MB. Why do it the same when you
1839 * can do it different...
1840 */
1841 vga_out8(0x3d4, 0x68, par); /* memory control 1 */
1842 if ((vga_in8(0x3d5, par) & 0xC0) == (0x01 << 6))
1843 RamSavage4[1] = 8;
1844
1845 /*FALLTHROUGH*/
1846
1847 case S3_SAVAGE2000:
1848 videoRam = RamSavage4[(config1 & 0xE0) >> 5] * 1024;
1849 break;
1850
1851 case S3_SAVAGE_MX:
1852 case S3_SUPERSAVAGE:
1853 videoRam = RamSavageMX[(config1 & 0x0E) >> 1] * 1024;
1854 break;
1855
1856 case S3_PROSAVAGE:
1857 videoRam = RamSavageNB[(config1 & 0xE0) >> 5] * 1024;
1858 break;
1859
1860 default:
1861 /* How did we get here? */
1862 videoRam = 0;
1863 break;
1864 }
1865
1866 videoRambytes = videoRam * 1024;
1867
1868 printk(KERN_INFO "savagefb: probed videoram: %dk\n", videoRam);
1869
1870 /* reset graphics engine to avoid memory corruption */
1871 vga_out8(0x3d4, 0x66, par);
1872 cr66 = vga_in8(0x3d5, par);
1873 vga_out8(0x3d5, cr66 | 0x02, par);
1874 udelay(10000);
1875
1876 vga_out8(0x3d4, 0x66, par);
1877 vga_out8(0x3d5, cr66 & ~0x02, par); /* clear reset flag */
1878 udelay(10000);
1879
1880
1881 /*
1882 * reset memory interface, 3D engine, AGP master, PCI master,
1883 * master engine unit, motion compensation/LPB
1884 */
1885 vga_out8(0x3d4, 0x3f, par);
1886 cr3f = vga_in8(0x3d5, par);
1887 vga_out8(0x3d5, cr3f | 0x08, par);
1888 udelay(10000);
1889
1890 vga_out8(0x3d4, 0x3f, par);
1891 vga_out8(0x3d5, cr3f & ~0x08, par); /* clear reset flags */
1892 udelay(10000);
1893
1894 /* Savage ramdac speeds */
1895 par->numClocks = 4;
1896 par->clock[0] = 250000;
1897 par->clock[1] = 250000;
1898 par->clock[2] = 220000;
1899 par->clock[3] = 220000;
1900
1901 /* detect current mclk */
1902 vga_out8(0x3c4, 0x08, par);
1903 sr8 = vga_in8(0x3c5, par);
1904 vga_out8(0x3c5, 0x06, par);
1905 vga_out8(0x3c4, 0x10, par);
1906 n = vga_in8(0x3c5, par);
1907 vga_out8(0x3c4, 0x11, par);
1908 m = vga_in8(0x3c5, par);
1909 vga_out8(0x3c4, 0x08, par);
1910 vga_out8(0x3c5, sr8, par);
1911 m &= 0x7f;
1912 n1 = n & 0x1f;
1913 n2 = (n >> 5) & 0x03;
1914 par->MCLK = ((1431818 * (m+2)) / (n1+2) / (1 << n2) + 50) / 100;
1915 printk(KERN_INFO "savagefb: Detected current MCLK value of %d kHz\n",
1916 par->MCLK);
1917
1918 /* check for DVI/flat panel */
1919 dvi = 0;
1920
1921 if (par->chip == S3_SAVAGE4) {
1922 unsigned char sr30 = 0x00;
1923
1924 vga_out8(0x3c4, 0x30, par);
1925 /* clear bit 1 */
1926 vga_out8(0x3c5, vga_in8(0x3c5, par) & ~0x02, par);
1927 sr30 = vga_in8(0x3c5, par);
1928 if (sr30 & 0x02 /*0x04 */) {
1929 dvi = 1;
1930 printk("savagefb: Digital Flat Panel Detected\n");
1931 }
1932 }
1933
1934 if (S3_SAVAGE_MOBILE_SERIES(par->chip) && !par->crtonly)
1935 par->display_type = DISP_LCD;
1936 else if (dvi || (par->chip == S3_SAVAGE4 && par->dvi))
1937 par->display_type = DISP_DFP;
1938 else
1939 par->display_type = DISP_CRT;
1940
1941 /* Check LCD panel parrmation */
1942
1943 if (par->display_type == DISP_LCD) {
1944 unsigned char cr6b = VGArCR(0x6b, par);
1945
1946 int panelX = (VGArSEQ(0x61, par) +
1947 ((VGArSEQ(0x66, par) & 0x02) << 7) + 1) * 8;
1948 int panelY = (VGArSEQ(0x69, par) +
1949 ((VGArSEQ(0x6e, par) & 0x70) << 4) + 1);
1950
1951 char * sTechnology = "Unknown";
1952
1953 /* OK, I admit it. I don't know how to limit the max dot clock
1954 * for LCD panels of various sizes. I thought I copied the
1955 * formula from the BIOS, but many users have parrmed me of
1956 * my folly.
1957 *
1958 * Instead, I'll abandon any attempt to automatically limit the
1959 * clock, and add an LCDClock option to XF86Config. Some day,
1960 * I should come back to this.
1961 */
1962
1963 enum ACTIVE_DISPLAYS { /* These are the bits in CR6B */
1964 ActiveCRT = 0x01,
1965 ActiveLCD = 0x02,
1966 ActiveTV = 0x04,
1967 ActiveCRT2 = 0x20,
1968 ActiveDUO = 0x80
1969 };
1970
1971 if ((VGArSEQ(0x39, par) & 0x03) == 0) {
1972 sTechnology = "TFT";
1973 } else if ((VGArSEQ(0x30, par) & 0x01) == 0) {
1974 sTechnology = "DSTN";
1975 } else {
1976 sTechnology = "STN";
1977 }
1978
1979 printk(KERN_INFO "savagefb: %dx%d %s LCD panel detected %s\n",
1980 panelX, panelY, sTechnology,
1981 cr6b & ActiveLCD ? "and active" : "but not active");
1982
1983 if (cr6b & ActiveLCD) {
1984 /*
1985 * If the LCD is active and panel expansion is enabled,
1986 * we probably want to kill the HW cursor.
1987 */
1988
1989 printk(KERN_INFO "savagefb: Limiting video mode to "
1990 "%dx%d\n", panelX, panelY);
1991
1992 par->SavagePanelWidth = panelX;
1993 par->SavagePanelHeight = panelY;
1994
1995 } else
1996 par->display_type = DISP_CRT;
1997 }
1998
1999 savage_get_default_par(par, &par->state);
2000 par->save = par->state;
2001
2002 if (S3_SAVAGE4_SERIES(par->chip)) {
2003 /*
2004 * The Savage4 and ProSavage have COB coherency bugs which
2005 * render the buffer useless. We disable it.
2006 */
2007 par->cob_index = 2;
2008 par->cob_size = 0x8000 << par->cob_index;
2009 par->cob_offset = videoRambytes;
2010 } else {
2011 /* We use 128kB for the COB on all chips. */
2012
2013 par->cob_index = 7;
2014 par->cob_size = 0x400 << par->cob_index;
2015 par->cob_offset = videoRambytes - par->cob_size;
2016 }
2017
2018 return videoRambytes;
2019 }
2020
2021 static int __devinit savage_init_fb_info(struct fb_info *info,
2022 struct pci_dev *dev,
2023 const struct pci_device_id *id)
2024 {
2025 struct savagefb_par *par = info->par;
2026 int err = 0;
2027
2028 par->pcidev = dev;
2029
2030 info->fix.type = FB_TYPE_PACKED_PIXELS;
2031 info->fix.type_aux = 0;
2032 info->fix.ypanstep = 1;
2033 info->fix.ywrapstep = 0;
2034 info->fix.accel = id->driver_data;
2035
2036 switch (info->fix.accel) {
2037 case FB_ACCEL_SUPERSAVAGE:
2038 par->chip = S3_SUPERSAVAGE;
2039 snprintf(info->fix.id, 16, "SuperSavage");
2040 break;
2041 case FB_ACCEL_SAVAGE4:
2042 par->chip = S3_SAVAGE4;
2043 snprintf(info->fix.id, 16, "Savage4");
2044 break;
2045 case FB_ACCEL_SAVAGE3D:
2046 par->chip = S3_SAVAGE3D;
2047 snprintf(info->fix.id, 16, "Savage3D");
2048 break;
2049 case FB_ACCEL_SAVAGE3D_MV:
2050 par->chip = S3_SAVAGE3D;
2051 snprintf(info->fix.id, 16, "Savage3D-MV");
2052 break;
2053 case FB_ACCEL_SAVAGE2000:
2054 par->chip = S3_SAVAGE2000;
2055 snprintf(info->fix.id, 16, "Savage2000");
2056 break;
2057 case FB_ACCEL_SAVAGE_MX_MV:
2058 par->chip = S3_SAVAGE_MX;
2059 snprintf(info->fix.id, 16, "Savage/MX-MV");
2060 break;
2061 case FB_ACCEL_SAVAGE_MX:
2062 par->chip = S3_SAVAGE_MX;
2063 snprintf(info->fix.id, 16, "Savage/MX");
2064 break;
2065 case FB_ACCEL_SAVAGE_IX_MV:
2066 par->chip = S3_SAVAGE_MX;
2067 snprintf(info->fix.id, 16, "Savage/IX-MV");
2068 break;
2069 case FB_ACCEL_SAVAGE_IX:
2070 par->chip = S3_SAVAGE_MX;
2071 snprintf(info->fix.id, 16, "Savage/IX");
2072 break;
2073 case FB_ACCEL_PROSAVAGE_PM:
2074 par->chip = S3_PROSAVAGE;
2075 snprintf(info->fix.id, 16, "ProSavagePM");
2076 break;
2077 case FB_ACCEL_PROSAVAGE_KM:
2078 par->chip = S3_PROSAVAGE;
2079 snprintf(info->fix.id, 16, "ProSavageKM");
2080 break;
2081 case FB_ACCEL_S3TWISTER_P:
2082 par->chip = S3_PROSAVAGE;
2083 snprintf(info->fix.id, 16, "TwisterP");
2084 break;
2085 case FB_ACCEL_S3TWISTER_K:
2086 par->chip = S3_PROSAVAGE;
2087 snprintf(info->fix.id, 16, "TwisterK");
2088 break;
2089 case FB_ACCEL_PROSAVAGE_DDR:
2090 par->chip = S3_PROSAVAGE;
2091 snprintf(info->fix.id, 16, "ProSavageDDR");
2092 break;
2093 case FB_ACCEL_PROSAVAGE_DDRK:
2094 par->chip = S3_PROSAVAGE;
2095 snprintf(info->fix.id, 16, "ProSavage8");
2096 break;
2097 }
2098
2099 if (S3_SAVAGE3D_SERIES(par->chip)) {
2100 par->SavageWaitIdle = savage3D_waitidle;
2101 par->SavageWaitFifo = savage3D_waitfifo;
2102 } else if (S3_SAVAGE4_SERIES(par->chip) ||
2103 S3_SUPERSAVAGE == par->chip) {
2104 par->SavageWaitIdle = savage4_waitidle;
2105 par->SavageWaitFifo = savage4_waitfifo;
2106 } else {
2107 par->SavageWaitIdle = savage2000_waitidle;
2108 par->SavageWaitFifo = savage2000_waitfifo;
2109 }
2110
2111 info->var.nonstd = 0;
2112 info->var.activate = FB_ACTIVATE_NOW;
2113 info->var.width = -1;
2114 info->var.height = -1;
2115 info->var.accel_flags = 0;
2116
2117 info->fbops = &savagefb_ops;
2118 info->flags = FBINFO_DEFAULT |
2119 FBINFO_HWACCEL_YPAN |
2120 FBINFO_HWACCEL_XPAN;
2121
2122 info->pseudo_palette = par->pseudo_palette;
2123
2124 #if defined(CONFIG_FB_SAVAGE_ACCEL)
2125 /* FIFO size + padding for commands */
2126 info->pixmap.addr = kmalloc(8*1024, GFP_KERNEL);
2127
2128 err = -ENOMEM;
2129 if (info->pixmap.addr) {
2130 memset(info->pixmap.addr, 0, 8*1024);
2131 info->pixmap.size = 8*1024;
2132 info->pixmap.scan_align = 4;
2133 info->pixmap.buf_align = 4;
2134 info->pixmap.access_align = 32;
2135
2136 err = fb_alloc_cmap(&info->cmap, NR_PALETTE, 0);
2137 if (!err)
2138 info->flags |= FBINFO_HWACCEL_COPYAREA |
2139 FBINFO_HWACCEL_FILLRECT |
2140 FBINFO_HWACCEL_IMAGEBLIT;
2141 }
2142 #endif
2143 return err;
2144 }
2145
2146 /* --------------------------------------------------------------------- */
2147
2148 static int __devinit savagefb_probe(struct pci_dev* dev,
2149 const struct pci_device_id* id)
2150 {
2151 struct fb_info *info;
2152 struct savagefb_par *par;
2153 u_int h_sync, v_sync;
2154 int err, lpitch;
2155 int video_len;
2156
2157 DBG("savagefb_probe");
2158 SavagePrintRegs();
2159
2160 info = framebuffer_alloc(sizeof(struct savagefb_par), &dev->dev);
2161 if (!info)
2162 return -ENOMEM;
2163 par = info->par;
2164 err = pci_enable_device(dev);
2165 if (err)
2166 goto failed_enable;
2167
2168 if ((err = pci_request_regions(dev, "savagefb"))) {
2169 printk(KERN_ERR "cannot request PCI regions\n");
2170 goto failed_enable;
2171 }
2172
2173 err = -ENOMEM;
2174
2175 if ((err = savage_init_fb_info(info, dev, id)))
2176 goto failed_init;
2177
2178 err = savage_map_mmio(info);
2179 if (err)
2180 goto failed_mmio;
2181
2182 video_len = savage_init_hw(par);
2183 /* FIXME: cant be negative */
2184 if (video_len < 0) {
2185 err = video_len;
2186 goto failed_mmio;
2187 }
2188
2189 err = savage_map_video(info, video_len);
2190 if (err)
2191 goto failed_video;
2192
2193 INIT_LIST_HEAD(&info->modelist);
2194 #if defined(CONFIG_FB_SAVAGE_I2C)
2195 savagefb_create_i2c_busses(info);
2196 savagefb_probe_i2c_connector(info, &par->edid);
2197 fb_edid_to_monspecs(par->edid, &info->monspecs);
2198 kfree(par->edid);
2199 fb_videomode_to_modelist(info->monspecs.modedb,
2200 info->monspecs.modedb_len,
2201 &info->modelist);
2202 #endif
2203 info->var = savagefb_var800x600x8;
2204
2205 if (mode_option) {
2206 fb_find_mode(&info->var, info, mode_option,
2207 info->monspecs.modedb, info->monspecs.modedb_len,
2208 NULL, 8);
2209 } else if (info->monspecs.modedb != NULL) {
2210 const struct fb_videomode *mode;
2211
2212 mode = fb_find_best_display(&info->monspecs, &info->modelist);
2213 savage_update_var(&info->var, mode);
2214 }
2215
2216 /* maximize virtual vertical length */
2217 lpitch = info->var.xres_virtual*((info->var.bits_per_pixel + 7) >> 3);
2218 info->var.yres_virtual = info->fix.smem_len/lpitch;
2219
2220 if (info->var.yres_virtual < info->var.yres)
2221 goto failed;
2222
2223 #if defined(CONFIG_FB_SAVAGE_ACCEL)
2224 /*
2225 * The clipping coordinates are masked with 0xFFF, so limit our
2226 * virtual resolutions to these sizes.
2227 */
2228 if (info->var.yres_virtual > 0x1000)
2229 info->var.yres_virtual = 0x1000;
2230
2231 if (info->var.xres_virtual > 0x1000)
2232 info->var.xres_virtual = 0x1000;
2233 #endif
2234 savagefb_check_var(&info->var, info);
2235 savagefb_set_fix(info);
2236
2237 /*
2238 * Calculate the hsync and vsync frequencies. Note that
2239 * we split the 1e12 constant up so that we can preserve
2240 * the precision and fit the results into 32-bit registers.
2241 * (1953125000 * 512 = 1e12)
2242 */
2243 h_sync = 1953125000 / info->var.pixclock;
2244 h_sync = h_sync * 512 / (info->var.xres + info->var.left_margin +
2245 info->var.right_margin +
2246 info->var.hsync_len);
2247 v_sync = h_sync / (info->var.yres + info->var.upper_margin +
2248 info->var.lower_margin + info->var.vsync_len);
2249
2250 printk(KERN_INFO "savagefb v" SAVAGEFB_VERSION ": "
2251 "%dkB VRAM, using %dx%d, %d.%03dkHz, %dHz\n",
2252 info->fix.smem_len >> 10,
2253 info->var.xres, info->var.yres,
2254 h_sync / 1000, h_sync % 1000, v_sync);
2255
2256
2257 fb_destroy_modedb(info->monspecs.modedb);
2258 info->monspecs.modedb = NULL;
2259
2260 err = register_framebuffer(info);
2261 if (err < 0)
2262 goto failed;
2263
2264 printk(KERN_INFO "fb: S3 %s frame buffer device\n",
2265 info->fix.id);
2266
2267 /*
2268 * Our driver data
2269 */
2270 pci_set_drvdata(dev, info);
2271
2272 return 0;
2273
2274 failed:
2275 #ifdef CONFIG_FB_SAVAGE_I2C
2276 savagefb_delete_i2c_busses(info);
2277 #endif
2278 fb_alloc_cmap(&info->cmap, 0, 0);
2279 savage_unmap_video(info);
2280 failed_video:
2281 savage_unmap_mmio(info);
2282 failed_mmio:
2283 kfree(info->pixmap.addr);
2284 failed_init:
2285 pci_release_regions(dev);
2286 failed_enable:
2287 framebuffer_release(info);
2288
2289 return err;
2290 }
2291
2292 static void __devexit savagefb_remove(struct pci_dev *dev)
2293 {
2294 struct fb_info *info = pci_get_drvdata(dev);
2295
2296 DBG("savagefb_remove");
2297
2298 if (info) {
2299 /*
2300 * If unregister_framebuffer fails, then
2301 * we will be leaving hooks that could cause
2302 * oopsen laying around.
2303 */
2304 if (unregister_framebuffer(info))
2305 printk(KERN_WARNING "savagefb: danger danger! "
2306 "Oopsen imminent!\n");
2307
2308 #ifdef CONFIG_FB_SAVAGE_I2C
2309 savagefb_delete_i2c_busses(info);
2310 #endif
2311 fb_alloc_cmap(&info->cmap, 0, 0);
2312 savage_unmap_video(info);
2313 savage_unmap_mmio(info);
2314 kfree(info->pixmap.addr);
2315 pci_release_regions(dev);
2316 framebuffer_release(info);
2317
2318 /*
2319 * Ensure that the driver data is no longer
2320 * valid.
2321 */
2322 pci_set_drvdata(dev, NULL);
2323 }
2324 }
2325
2326 static int savagefb_suspend(struct pci_dev *dev, pm_message_t mesg)
2327 {
2328 struct fb_info *info = pci_get_drvdata(dev);
2329 struct savagefb_par *par = info->par;
2330
2331 DBG("savagefb_suspend");
2332
2333 if (mesg.event == PM_EVENT_PRETHAW)
2334 mesg.event = PM_EVENT_FREEZE;
2335 par->pm_state = mesg.event;
2336 dev->dev.power.power_state = mesg;
2337
2338 /*
2339 * For PM_EVENT_FREEZE, do not power down so the console
2340 * can remain active.
2341 */
2342 if (mesg.event == PM_EVENT_FREEZE)
2343 return 0;
2344
2345 acquire_console_sem();
2346 fb_set_suspend(info, 1);
2347
2348 if (info->fbops->fb_sync)
2349 info->fbops->fb_sync(info);
2350
2351 savagefb_blank(FB_BLANK_POWERDOWN, info);
2352 savage_set_default_par(par, &par->save);
2353 savage_disable_mmio(par);
2354 pci_save_state(dev);
2355 pci_disable_device(dev);
2356 pci_set_power_state(dev, pci_choose_state(dev, mesg));
2357 release_console_sem();
2358
2359 return 0;
2360 }
2361
2362 static int savagefb_resume(struct pci_dev* dev)
2363 {
2364 struct fb_info *info = pci_get_drvdata(dev);
2365 struct savagefb_par *par = info->par;
2366 int cur_state = par->pm_state;
2367
2368 DBG("savage_resume");
2369
2370 par->pm_state = PM_EVENT_ON;
2371
2372 /*
2373 * The adapter was not powered down coming back from a
2374 * PM_EVENT_FREEZE.
2375 */
2376 if (cur_state == PM_EVENT_FREEZE) {
2377 pci_set_power_state(dev, PCI_D0);
2378 return 0;
2379 }
2380
2381 acquire_console_sem();
2382
2383 pci_set_power_state(dev, PCI_D0);
2384 pci_restore_state(dev);
2385
2386 if (pci_enable_device(dev))
2387 DBG("err");
2388
2389 pci_set_master(dev);
2390 savage_enable_mmio(par);
2391 savage_init_hw(par);
2392 savagefb_set_par(info);
2393 fb_set_suspend(info, 0);
2394 savagefb_blank(FB_BLANK_UNBLANK, info);
2395 release_console_sem();
2396
2397 return 0;
2398 }
2399
2400
2401 static struct pci_device_id savagefb_devices[] __devinitdata = {
2402 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX128,
2403 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2404
2405 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX64,
2406 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2407
2408 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX64C,
2409 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2410
2411 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX128SDR,
2412 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2413
2414 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX128DDR,
2415 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2416
2417 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX64SDR,
2418 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2419
2420 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX64DDR,
2421 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2422
2423 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IXCSDR,
2424 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2425
2426 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IXCDDR,
2427 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2428
2429 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE4,
2430 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE4},
2431
2432 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE3D,
2433 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE3D},
2434
2435 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE3D_MV,
2436 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE3D_MV},
2437
2438 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE2000,
2439 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE2000},
2440
2441 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_MX_MV,
2442 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_MX_MV},
2443
2444 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_MX,
2445 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_MX},
2446
2447 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_IX_MV,
2448 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_IX_MV},
2449
2450 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_IX,
2451 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_IX},
2452
2453 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_PM,
2454 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_PM},
2455
2456 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_KM,
2457 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_KM},
2458
2459 {PCI_VENDOR_ID_S3, PCI_CHIP_S3TWISTER_P,
2460 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_S3TWISTER_P},
2461
2462 {PCI_VENDOR_ID_S3, PCI_CHIP_S3TWISTER_K,
2463 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_S3TWISTER_K},
2464
2465 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_DDR,
2466 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_DDR},
2467
2468 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_DDRK,
2469 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_DDRK},
2470
2471 {0, 0, 0, 0, 0, 0, 0}
2472 };
2473
2474 MODULE_DEVICE_TABLE(pci, savagefb_devices);
2475
2476 static struct pci_driver savagefb_driver = {
2477 .name = "savagefb",
2478 .id_table = savagefb_devices,
2479 .probe = savagefb_probe,
2480 .suspend = savagefb_suspend,
2481 .resume = savagefb_resume,
2482 .remove = __devexit_p(savagefb_remove)
2483 };
2484
2485 /* **************************** exit-time only **************************** */
2486
2487 static void __exit savage_done(void)
2488 {
2489 DBG("savage_done");
2490 pci_unregister_driver(&savagefb_driver);
2491 }
2492
2493
2494 /* ************************* init in-kernel code ************************** */
2495
2496 static int __init savagefb_setup(char *options)
2497 {
2498 #ifndef MODULE
2499 char *this_opt;
2500
2501 if (!options || !*options)
2502 return 0;
2503
2504 while ((this_opt = strsep(&options, ",")) != NULL) {
2505 mode_option = this_opt;
2506 }
2507 #endif /* !MODULE */
2508 return 0;
2509 }
2510
2511 static int __init savagefb_init(void)
2512 {
2513 char *option;
2514
2515 DBG("savagefb_init");
2516
2517 if (fb_get_options("savagefb", &option))
2518 return -ENODEV;
2519
2520 savagefb_setup(option);
2521 return pci_register_driver(&savagefb_driver);
2522
2523 }
2524
2525 module_init(savagefb_init);
2526 module_exit(savage_done);
2527
2528 module_param(mode_option, charp, 0);
2529 MODULE_PARM_DESC(mode_option, "Specify initial video mode");
Linux with added FPC-III support