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qla2xxx: Correct (again) overflow during dump-processing on large-memory ISP23xx...
[linux-2.6/mini2440.git] / drivers / video / savage / savagefb_driver.c
blob37b135d5d12ed92de0d46cd08c6250bbae297c20
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
61 #ifdef CONFIG_MTRR
62 #include <asm/mtrr.h>
63 #endif
64
65 #include "savagefb.h"
66
67
68 #define SAVAGEFB_VERSION "0.4.0_2.6"
69
70 /* --------------------------------------------------------------------- */
71
72
73 static char *mode_option __devinitdata = NULL;
74
75 #ifdef MODULE
76
77 MODULE_AUTHOR("(c) 2001-2002 Denis Oliver Kropp <dok@directfb.org>");
78 MODULE_LICENSE("GPL");
79 MODULE_DESCRIPTION("FBDev driver for S3 Savage PCI/AGP Chips");
80
81 #endif
82
83
84 /* --------------------------------------------------------------------- */
85
86 static void vgaHWSeqReset(struct savagefb_par *par, int start)
87 {
88 if (start)
89 VGAwSEQ(0x00, 0x01, par); /* Synchronous Reset */
90 else
91 VGAwSEQ(0x00, 0x03, par); /* End Reset */
92 }
93
94 static void vgaHWProtect(struct savagefb_par *par, int on)
95 {
96 unsigned char tmp;
97
98 if (on) {
99 /*
100 * Turn off screen and disable sequencer.
101 */
102 tmp = VGArSEQ(0x01, par);
103
104 vgaHWSeqReset(par, 1); /* start synchronous reset */
105 VGAwSEQ(0x01, tmp | 0x20, par);/* disable the display */
106
107 VGAenablePalette(par);
108 } else {
109 /*
110 * Reenable sequencer, then turn on screen.
111 */
112
113 tmp = VGArSEQ(0x01, par);
114
115 VGAwSEQ(0x01, tmp & ~0x20, par);/* reenable display */
116 vgaHWSeqReset(par, 0); /* clear synchronous reset */
117
118 VGAdisablePalette(par);
119 }
120 }
121
122 static void vgaHWRestore(struct savagefb_par *par, struct savage_reg *reg)
123 {
124 int i;
125
126 VGAwMISC(reg->MiscOutReg, par);
127
128 for (i = 1; i < 5; i++)
129 VGAwSEQ(i, reg->Sequencer[i], par);
130
131 /* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 or
132 CRTC[17] */
133 VGAwCR(17, reg->CRTC[17] & ~0x80, par);
134
135 for (i = 0; i < 25; i++)
136 VGAwCR(i, reg->CRTC[i], par);
137
138 for (i = 0; i < 9; i++)
139 VGAwGR(i, reg->Graphics[i], par);
140
141 VGAenablePalette(par);
142
143 for (i = 0; i < 21; i++)
144 VGAwATTR(i, reg->Attribute[i], par);
145
146 VGAdisablePalette(par);
147 }
148
149 static void vgaHWInit(struct fb_var_screeninfo *var,
150 struct savagefb_par *par,
151 struct xtimings *timings,
152 struct savage_reg *reg)
153 {
154 reg->MiscOutReg = 0x23;
155
156 if (!(timings->sync & FB_SYNC_HOR_HIGH_ACT))
157 reg->MiscOutReg |= 0x40;
158
159 if (!(timings->sync & FB_SYNC_VERT_HIGH_ACT))
160 reg->MiscOutReg |= 0x80;
161
162 /*
163 * Time Sequencer
164 */
165 reg->Sequencer[0x00] = 0x00;
166 reg->Sequencer[0x01] = 0x01;
167 reg->Sequencer[0x02] = 0x0F;
168 reg->Sequencer[0x03] = 0x00; /* Font select */
169 reg->Sequencer[0x04] = 0x0E; /* Misc */
170
171 /*
172 * CRTC Controller
173 */
174 reg->CRTC[0x00] = (timings->HTotal >> 3) - 5;
175 reg->CRTC[0x01] = (timings->HDisplay >> 3) - 1;
176 reg->CRTC[0x02] = (timings->HSyncStart >> 3) - 1;
177 reg->CRTC[0x03] = (((timings->HSyncEnd >> 3) - 1) & 0x1f) | 0x80;
178 reg->CRTC[0x04] = (timings->HSyncStart >> 3);
179 reg->CRTC[0x05] = ((((timings->HSyncEnd >> 3) - 1) & 0x20) << 2) |
180 (((timings->HSyncEnd >> 3)) & 0x1f);
181 reg->CRTC[0x06] = (timings->VTotal - 2) & 0xFF;
182 reg->CRTC[0x07] = (((timings->VTotal - 2) & 0x100) >> 8) |
183 (((timings->VDisplay - 1) & 0x100) >> 7) |
184 ((timings->VSyncStart & 0x100) >> 6) |
185 (((timings->VSyncStart - 1) & 0x100) >> 5) |
186 0x10 |
187 (((timings->VTotal - 2) & 0x200) >> 4) |
188 (((timings->VDisplay - 1) & 0x200) >> 3) |
189 ((timings->VSyncStart & 0x200) >> 2);
190 reg->CRTC[0x08] = 0x00;
191 reg->CRTC[0x09] = (((timings->VSyncStart - 1) & 0x200) >> 4) | 0x40;
192
193 if (timings->dblscan)
194 reg->CRTC[0x09] |= 0x80;
195
196 reg->CRTC[0x0a] = 0x00;
197 reg->CRTC[0x0b] = 0x00;
198 reg->CRTC[0x0c] = 0x00;
199 reg->CRTC[0x0d] = 0x00;
200 reg->CRTC[0x0e] = 0x00;
201 reg->CRTC[0x0f] = 0x00;
202 reg->CRTC[0x10] = timings->VSyncStart & 0xff;
203 reg->CRTC[0x11] = (timings->VSyncEnd & 0x0f) | 0x20;
204 reg->CRTC[0x12] = (timings->VDisplay - 1) & 0xff;
205 reg->CRTC[0x13] = var->xres_virtual >> 4;
206 reg->CRTC[0x14] = 0x00;
207 reg->CRTC[0x15] = (timings->VSyncStart - 1) & 0xff;
208 reg->CRTC[0x16] = (timings->VSyncEnd - 1) & 0xff;
209 reg->CRTC[0x17] = 0xc3;
210 reg->CRTC[0x18] = 0xff;
211
212 /*
213 * are these unnecessary?
214 * vgaHWHBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN|KGA_ENABLE_ON_ZERO);
215 * vgaHWVBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN|KGA_ENABLE_ON_ZERO);
216 */
217
218 /*
219 * Graphics Display Controller
220 */
221 reg->Graphics[0x00] = 0x00;
222 reg->Graphics[0x01] = 0x00;
223 reg->Graphics[0x02] = 0x00;
224 reg->Graphics[0x03] = 0x00;
225 reg->Graphics[0x04] = 0x00;
226 reg->Graphics[0x05] = 0x40;
227 reg->Graphics[0x06] = 0x05; /* only map 64k VGA memory !!!! */
228 reg->Graphics[0x07] = 0x0F;
229 reg->Graphics[0x08] = 0xFF;
230
231
232 reg->Attribute[0x00] = 0x00; /* standard colormap translation */
233 reg->Attribute[0x01] = 0x01;
234 reg->Attribute[0x02] = 0x02;
235 reg->Attribute[0x03] = 0x03;
236 reg->Attribute[0x04] = 0x04;
237 reg->Attribute[0x05] = 0x05;
238 reg->Attribute[0x06] = 0x06;
239 reg->Attribute[0x07] = 0x07;
240 reg->Attribute[0x08] = 0x08;
241 reg->Attribute[0x09] = 0x09;
242 reg->Attribute[0x0a] = 0x0A;
243 reg->Attribute[0x0b] = 0x0B;
244 reg->Attribute[0x0c] = 0x0C;
245 reg->Attribute[0x0d] = 0x0D;
246 reg->Attribute[0x0e] = 0x0E;
247 reg->Attribute[0x0f] = 0x0F;
248 reg->Attribute[0x10] = 0x41;
249 reg->Attribute[0x11] = 0xFF;
250 reg->Attribute[0x12] = 0x0F;
251 reg->Attribute[0x13] = 0x00;
252 reg->Attribute[0x14] = 0x00;
253 }
254
255 /* -------------------- Hardware specific routines ------------------------- */
256
257 /*
258 * Hardware Acceleration for SavageFB
259 */
260
261 /* Wait for fifo space */
262 static void
263 savage3D_waitfifo(struct savagefb_par *par, int space)
264 {
265 int slots = MAXFIFO - space;
266
267 while ((savage_in32(0x48C00, par) & 0x0000ffff) > slots);
268 }
269
270 static void
271 savage4_waitfifo(struct savagefb_par *par, int space)
272 {
273 int slots = MAXFIFO - space;
274
275 while ((savage_in32(0x48C60, par) & 0x001fffff) > slots);
276 }
277
278 static void
279 savage2000_waitfifo(struct savagefb_par *par, int space)
280 {
281 int slots = MAXFIFO - space;
282
283 while ((savage_in32(0x48C60, par) & 0x0000ffff) > slots);
284 }
285
286 /* Wait for idle accelerator */
287 static void
288 savage3D_waitidle(struct savagefb_par *par)
289 {
290 while ((savage_in32(0x48C00, par) & 0x0008ffff) != 0x80000);
291 }
292
293 static void
294 savage4_waitidle(struct savagefb_par *par)
295 {
296 while ((savage_in32(0x48C60, par) & 0x00a00000) != 0x00a00000);
297 }
298
299 static void
300 savage2000_waitidle(struct savagefb_par *par)
301 {
302 while ((savage_in32(0x48C60, par) & 0x009fffff));
303 }
304
305 #ifdef CONFIG_FB_SAVAGE_ACCEL
306 static void
307 SavageSetup2DEngine(struct savagefb_par *par)
308 {
309 unsigned long GlobalBitmapDescriptor;
310
311 GlobalBitmapDescriptor = 1 | 8 | BCI_BD_BW_DISABLE;
312 BCI_BD_SET_BPP(GlobalBitmapDescriptor, par->depth);
313 BCI_BD_SET_STRIDE(GlobalBitmapDescriptor, par->vwidth);
314
315 switch(par->chip) {
316 case S3_SAVAGE3D:
317 case S3_SAVAGE_MX:
318 /* Disable BCI */
319 savage_out32(0x48C18, savage_in32(0x48C18, par) & 0x3FF0, par);
320 /* Setup BCI command overflow buffer */
321 savage_out32(0x48C14,
322 (par->cob_offset >> 11) | (par->cob_index << 29),
323 par);
324 /* Program shadow status update. */
325 savage_out32(0x48C10, 0x78207220, par);
326 savage_out32(0x48C0C, 0, par);
327 /* Enable BCI and command overflow buffer */
328 savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x0C, par);
329 break;
330 case S3_SAVAGE4:
331 case S3_PROSAVAGE:
332 case S3_SUPERSAVAGE:
333 /* Disable BCI */
334 savage_out32(0x48C18, savage_in32(0x48C18, par) & 0x3FF0, par);
335 /* Program shadow status update */
336 savage_out32(0x48C10, 0x00700040, par);
337 savage_out32(0x48C0C, 0, par);
338 /* Enable BCI without the COB */
339 savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x08, par);
340 break;
341 case S3_SAVAGE2000:
342 /* Disable BCI */
343 savage_out32(0x48C18, 0, par);
344 /* Setup BCI command overflow buffer */
345 savage_out32(0x48C18,
346 (par->cob_offset >> 7) | (par->cob_index),
347 par);
348 /* Disable shadow status update */
349 savage_out32(0x48A30, 0, par);
350 /* Enable BCI and command overflow buffer */
351 savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x00280000,
352 par);
353 break;
354 default:
355 break;
356 }
357 /* Turn on 16-bit register access. */
358 vga_out8(0x3d4, 0x31, par);
359 vga_out8(0x3d5, 0x0c, par);
360
361 /* Set stride to use GBD. */
362 vga_out8(0x3d4, 0x50, par);
363 vga_out8(0x3d5, vga_in8(0x3d5, par) | 0xC1, par);
364
365 /* Enable 2D engine. */
366 vga_out8(0x3d4, 0x40, par);
367 vga_out8(0x3d5, 0x01, par);
368
369 savage_out32(MONO_PAT_0, ~0, par);
370 savage_out32(MONO_PAT_1, ~0, par);
371
372 /* Setup plane masks */
373 savage_out32(0x8128, ~0, par); /* enable all write planes */
374 savage_out32(0x812C, ~0, par); /* enable all read planes */
375 savage_out16(0x8134, 0x27, par);
376 savage_out16(0x8136, 0x07, par);
377
378 /* Now set the GBD */
379 par->bci_ptr = 0;
380 par->SavageWaitFifo(par, 4);
381
382 BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD1);
383 BCI_SEND(0);
384 BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD2);
385 BCI_SEND(GlobalBitmapDescriptor);
386
387 /*
388 * I don't know why, sending this twice fixes the intial black screen,
389 * prevents X from crashing at least in Toshiba laptops with SavageIX.
390 * --Tony
391 */
392 par->bci_ptr = 0;
393 par->SavageWaitFifo(par, 4);
394
395 BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD1);
396 BCI_SEND(0);
397 BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD2);
398 BCI_SEND(GlobalBitmapDescriptor);
399 }
400
401 static void savagefb_set_clip(struct fb_info *info)
402 {
403 struct savagefb_par *par = info->par;
404 int cmd;
405
406 cmd = BCI_CMD_NOP | BCI_CMD_CLIP_NEW;
407 par->bci_ptr = 0;
408 par->SavageWaitFifo(par,3);
409 BCI_SEND(cmd);
410 BCI_SEND(BCI_CLIP_TL(0, 0));
411 BCI_SEND(BCI_CLIP_BR(0xfff, 0xfff));
412 }
413 #else
414 static void SavageSetup2DEngine(struct savagefb_par *par) {}
415
416 #endif
417
418 static void SavageCalcClock(long freq, int min_m, int min_n1, int max_n1,
419 int min_n2, int max_n2, long freq_min,
420 long freq_max, unsigned int *mdiv,
421 unsigned int *ndiv, unsigned int *r)
422 {
423 long diff, best_diff;
424 unsigned int m;
425 unsigned char n1, n2, best_n1=16+2, best_n2=2, best_m=125+2;
426
427 if (freq < freq_min / (1 << max_n2)) {
428 printk(KERN_ERR "invalid frequency %ld Khz\n", freq);
429 freq = freq_min / (1 << max_n2);
430 }
431 if (freq > freq_max / (1 << min_n2)) {
432 printk(KERN_ERR "invalid frequency %ld Khz\n", freq);
433 freq = freq_max / (1 << min_n2);
434 }
435
436 /* work out suitable timings */
437 best_diff = freq;
438
439 for (n2=min_n2; n2<=max_n2; n2++) {
440 for (n1=min_n1+2; n1<=max_n1+2; n1++) {
441 m = (freq * n1 * (1 << n2) + HALF_BASE_FREQ) /
442 BASE_FREQ;
443 if (m < min_m+2 || m > 127+2)
444 continue;
445 if ((m * BASE_FREQ >= freq_min * n1) &&
446 (m * BASE_FREQ <= freq_max * n1)) {
447 diff = freq * (1 << n2) * n1 - BASE_FREQ * m;
448 if (diff < 0)
449 diff = -diff;
450 if (diff < best_diff) {
451 best_diff = diff;
452 best_m = m;
453 best_n1 = n1;
454 best_n2 = n2;
455 }
456 }
457 }
458 }
459
460 *ndiv = best_n1 - 2;
461 *r = best_n2;
462 *mdiv = best_m - 2;
463 }
464
465 static int common_calc_clock(long freq, int min_m, int min_n1, int max_n1,
466 int min_n2, int max_n2, long freq_min,
467 long freq_max, unsigned char *mdiv,
468 unsigned char *ndiv)
469 {
470 long diff, best_diff;
471 unsigned int m;
472 unsigned char n1, n2;
473 unsigned char best_n1 = 16+2, best_n2 = 2, best_m = 125+2;
474
475 best_diff = freq;
476
477 for (n2 = min_n2; n2 <= max_n2; n2++) {
478 for (n1 = min_n1+2; n1 <= max_n1+2; n1++) {
479 m = (freq * n1 * (1 << n2) + HALF_BASE_FREQ) /
480 BASE_FREQ;
481 if (m < min_m + 2 || m > 127+2)
482 continue;
483 if ((m * BASE_FREQ >= freq_min * n1) &&
484 (m * BASE_FREQ <= freq_max * n1)) {
485 diff = freq * (1 << n2) * n1 - BASE_FREQ * m;
486 if (diff < 0)
487 diff = -diff;
488 if (diff < best_diff) {
489 best_diff = diff;
490 best_m = m;
491 best_n1 = n1;
492 best_n2 = n2;
493 }
494 }
495 }
496 }
497
498 if (max_n1 == 63)
499 *ndiv = (best_n1 - 2) | (best_n2 << 6);
500 else
501 *ndiv = (best_n1 - 2) | (best_n2 << 5);
502
503 *mdiv = best_m - 2;
504
505 return 0;
506 }
507
508 #ifdef SAVAGEFB_DEBUG
509 /* This function is used to debug, it prints out the contents of s3 regs */
510
511 static void SavagePrintRegs(struct savagefb_par *par)
512 {
513 unsigned char i;
514 int vgaCRIndex = 0x3d4;
515 int vgaCRReg = 0x3d5;
516
517 printk(KERN_DEBUG "SR x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE "
518 "xF");
519
520 for (i = 0; i < 0x70; i++) {
521 if (!(i % 16))
522 printk(KERN_DEBUG "\nSR%xx ", i >> 4);
523 vga_out8(0x3c4, i, par);
524 printk(KERN_DEBUG " %02x", vga_in8(0x3c5, par));
525 }
526
527 printk(KERN_DEBUG "\n\nCR x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC "
528 "xD xE xF");
529
530 for (i = 0; i < 0xB7; i++) {
531 if (!(i % 16))
532 printk(KERN_DEBUG "\nCR%xx ", i >> 4);
533 vga_out8(vgaCRIndex, i, par);
534 printk(KERN_DEBUG " %02x", vga_in8(vgaCRReg, par));
535 }
536
537 printk(KERN_DEBUG "\n\n");
538 }
539 #endif
540
541 /* --------------------------------------------------------------------- */
542
543 static void savage_get_default_par(struct savagefb_par *par, struct savage_reg *reg)
544 {
545 unsigned char cr3a, cr53, cr66;
546
547 vga_out16(0x3d4, 0x4838, par);
548 vga_out16(0x3d4, 0xa039, par);
549 vga_out16(0x3c4, 0x0608, par);
550
551 vga_out8(0x3d4, 0x66, par);
552 cr66 = vga_in8(0x3d5, par);
553 vga_out8(0x3d5, cr66 | 0x80, par);
554 vga_out8(0x3d4, 0x3a, par);
555 cr3a = vga_in8(0x3d5, par);
556 vga_out8(0x3d5, cr3a | 0x80, par);
557 vga_out8(0x3d4, 0x53, par);
558 cr53 = vga_in8(0x3d5, par);
559 vga_out8(0x3d5, cr53 & 0x7f, par);
560
561 vga_out8(0x3d4, 0x66, par);
562 vga_out8(0x3d5, cr66, par);
563 vga_out8(0x3d4, 0x3a, par);
564 vga_out8(0x3d5, cr3a, par);
565
566 vga_out8(0x3d4, 0x66, par);
567 vga_out8(0x3d5, cr66, par);
568 vga_out8(0x3d4, 0x3a, par);
569 vga_out8(0x3d5, cr3a, par);
570
571 /* unlock extended seq regs */
572 vga_out8(0x3c4, 0x08, par);
573 reg->SR08 = vga_in8(0x3c5, par);
574 vga_out8(0x3c5, 0x06, par);
575
576 /* now save all the extended regs we need */
577 vga_out8(0x3d4, 0x31, par);
578 reg->CR31 = vga_in8(0x3d5, par);
579 vga_out8(0x3d4, 0x32, par);
580 reg->CR32 = vga_in8(0x3d5, par);
581 vga_out8(0x3d4, 0x34, par);
582 reg->CR34 = vga_in8(0x3d5, par);
583 vga_out8(0x3d4, 0x36, par);
584 reg->CR36 = vga_in8(0x3d5, par);
585 vga_out8(0x3d4, 0x3a, par);
586 reg->CR3A = vga_in8(0x3d5, par);
587 vga_out8(0x3d4, 0x40, par);
588 reg->CR40 = vga_in8(0x3d5, par);
589 vga_out8(0x3d4, 0x42, par);
590 reg->CR42 = vga_in8(0x3d5, par);
591 vga_out8(0x3d4, 0x45, par);
592 reg->CR45 = vga_in8(0x3d5, par);
593 vga_out8(0x3d4, 0x50, par);
594 reg->CR50 = vga_in8(0x3d5, par);
595 vga_out8(0x3d4, 0x51, par);
596 reg->CR51 = vga_in8(0x3d5, par);
597 vga_out8(0x3d4, 0x53, par);
598 reg->CR53 = vga_in8(0x3d5, par);
599 vga_out8(0x3d4, 0x58, par);
600 reg->CR58 = vga_in8(0x3d5, par);
601 vga_out8(0x3d4, 0x60, par);
602 reg->CR60 = vga_in8(0x3d5, par);
603 vga_out8(0x3d4, 0x66, par);
604 reg->CR66 = vga_in8(0x3d5, par);
605 vga_out8(0x3d4, 0x67, par);
606 reg->CR67 = vga_in8(0x3d5, par);
607 vga_out8(0x3d4, 0x68, par);
608 reg->CR68 = vga_in8(0x3d5, par);
609 vga_out8(0x3d4, 0x69, par);
610 reg->CR69 = vga_in8(0x3d5, par);
611 vga_out8(0x3d4, 0x6f, par);
612 reg->CR6F = vga_in8(0x3d5, par);
613
614 vga_out8(0x3d4, 0x33, par);
615 reg->CR33 = vga_in8(0x3d5, par);
616 vga_out8(0x3d4, 0x86, par);
617 reg->CR86 = vga_in8(0x3d5, par);
618 vga_out8(0x3d4, 0x88, par);
619 reg->CR88 = vga_in8(0x3d5, par);
620 vga_out8(0x3d4, 0x90, par);
621 reg->CR90 = vga_in8(0x3d5, par);
622 vga_out8(0x3d4, 0x91, par);
623 reg->CR91 = vga_in8(0x3d5, par);
624 vga_out8(0x3d4, 0xb0, par);
625 reg->CRB0 = vga_in8(0x3d5, par) | 0x80;
626
627 /* extended mode timing regs */
628 vga_out8(0x3d4, 0x3b, par);
629 reg->CR3B = vga_in8(0x3d5, par);
630 vga_out8(0x3d4, 0x3c, par);
631 reg->CR3C = vga_in8(0x3d5, par);
632 vga_out8(0x3d4, 0x43, par);
633 reg->CR43 = vga_in8(0x3d5, par);
634 vga_out8(0x3d4, 0x5d, par);
635 reg->CR5D = vga_in8(0x3d5, par);
636 vga_out8(0x3d4, 0x5e, par);
637 reg->CR5E = vga_in8(0x3d5, par);
638 vga_out8(0x3d4, 0x65, par);
639 reg->CR65 = vga_in8(0x3d5, par);
640
641 /* save seq extended regs for DCLK PLL programming */
642 vga_out8(0x3c4, 0x0e, par);
643 reg->SR0E = vga_in8(0x3c5, par);
644 vga_out8(0x3c4, 0x0f, par);
645 reg->SR0F = vga_in8(0x3c5, par);
646 vga_out8(0x3c4, 0x10, par);
647 reg->SR10 = vga_in8(0x3c5, par);
648 vga_out8(0x3c4, 0x11, par);
649 reg->SR11 = vga_in8(0x3c5, par);
650 vga_out8(0x3c4, 0x12, par);
651 reg->SR12 = vga_in8(0x3c5, par);
652 vga_out8(0x3c4, 0x13, par);
653 reg->SR13 = vga_in8(0x3c5, par);
654 vga_out8(0x3c4, 0x29, par);
655 reg->SR29 = vga_in8(0x3c5, par);
656
657 vga_out8(0x3c4, 0x15, par);
658 reg->SR15 = vga_in8(0x3c5, par);
659 vga_out8(0x3c4, 0x30, par);
660 reg->SR30 = vga_in8(0x3c5, par);
661 vga_out8(0x3c4, 0x18, par);
662 reg->SR18 = vga_in8(0x3c5, par);
663
664 /* Save flat panel expansion regsters. */
665 if (par->chip == S3_SAVAGE_MX) {
666 int i;
667
668 for (i = 0; i < 8; i++) {
669 vga_out8(0x3c4, 0x54+i, par);
670 reg->SR54[i] = vga_in8(0x3c5, par);
671 }
672 }
673
674 vga_out8(0x3d4, 0x66, par);
675 cr66 = vga_in8(0x3d5, par);
676 vga_out8(0x3d5, cr66 | 0x80, par);
677 vga_out8(0x3d4, 0x3a, par);
678 cr3a = vga_in8(0x3d5, par);
679 vga_out8(0x3d5, cr3a | 0x80, par);
680
681 /* now save MIU regs */
682 if (par->chip != S3_SAVAGE_MX) {
683 reg->MMPR0 = savage_in32(FIFO_CONTROL_REG, par);
684 reg->MMPR1 = savage_in32(MIU_CONTROL_REG, par);
685 reg->MMPR2 = savage_in32(STREAMS_TIMEOUT_REG, par);
686 reg->MMPR3 = savage_in32(MISC_TIMEOUT_REG, par);
687 }
688
689 vga_out8(0x3d4, 0x3a, par);
690 vga_out8(0x3d5, cr3a, par);
691 vga_out8(0x3d4, 0x66, par);
692 vga_out8(0x3d5, cr66, par);
693 }
694
695 static void savage_set_default_par(struct savagefb_par *par,
696 struct savage_reg *reg)
697 {
698 unsigned char cr3a, cr53, cr66;
699
700 vga_out16(0x3d4, 0x4838, par);
701 vga_out16(0x3d4, 0xa039, par);
702 vga_out16(0x3c4, 0x0608, par);
703
704 vga_out8(0x3d4, 0x66, par);
705 cr66 = vga_in8(0x3d5, par);
706 vga_out8(0x3d5, cr66 | 0x80, par);
707 vga_out8(0x3d4, 0x3a, par);
708 cr3a = vga_in8(0x3d5, par);
709 vga_out8(0x3d5, cr3a | 0x80, par);
710 vga_out8(0x3d4, 0x53, par);
711 cr53 = vga_in8(0x3d5, par);
712 vga_out8(0x3d5, cr53 & 0x7f, par);
713
714 vga_out8(0x3d4, 0x66, par);
715 vga_out8(0x3d5, cr66, par);
716 vga_out8(0x3d4, 0x3a, par);
717 vga_out8(0x3d5, cr3a, par);
718
719 vga_out8(0x3d4, 0x66, par);
720 vga_out8(0x3d5, cr66, par);
721 vga_out8(0x3d4, 0x3a, par);
722 vga_out8(0x3d5, cr3a, par);
723
724 /* unlock extended seq regs */
725 vga_out8(0x3c4, 0x08, par);
726 vga_out8(0x3c5, reg->SR08, par);
727 vga_out8(0x3c5, 0x06, par);
728
729 /* now restore all the extended regs we need */
730 vga_out8(0x3d4, 0x31, par);
731 vga_out8(0x3d5, reg->CR31, par);
732 vga_out8(0x3d4, 0x32, par);
733 vga_out8(0x3d5, reg->CR32, par);
734 vga_out8(0x3d4, 0x34, par);
735 vga_out8(0x3d5, reg->CR34, par);
736 vga_out8(0x3d4, 0x36, par);
737 vga_out8(0x3d5,reg->CR36, par);
738 vga_out8(0x3d4, 0x3a, par);
739 vga_out8(0x3d5, reg->CR3A, par);
740 vga_out8(0x3d4, 0x40, par);
741 vga_out8(0x3d5, reg->CR40, par);
742 vga_out8(0x3d4, 0x42, par);
743 vga_out8(0x3d5, reg->CR42, par);
744 vga_out8(0x3d4, 0x45, par);
745 vga_out8(0x3d5, reg->CR45, par);
746 vga_out8(0x3d4, 0x50, par);
747 vga_out8(0x3d5, reg->CR50, par);
748 vga_out8(0x3d4, 0x51, par);
749 vga_out8(0x3d5, reg->CR51, par);
750 vga_out8(0x3d4, 0x53, par);
751 vga_out8(0x3d5, reg->CR53, par);
752 vga_out8(0x3d4, 0x58, par);
753 vga_out8(0x3d5, reg->CR58, par);
754 vga_out8(0x3d4, 0x60, par);
755 vga_out8(0x3d5, reg->CR60, par);
756 vga_out8(0x3d4, 0x66, par);
757 vga_out8(0x3d5, reg->CR66, par);
758 vga_out8(0x3d4, 0x67, par);
759 vga_out8(0x3d5, reg->CR67, par);
760 vga_out8(0x3d4, 0x68, par);
761 vga_out8(0x3d5, reg->CR68, par);
762 vga_out8(0x3d4, 0x69, par);
763 vga_out8(0x3d5, reg->CR69, par);
764 vga_out8(0x3d4, 0x6f, par);
765 vga_out8(0x3d5, reg->CR6F, par);
766
767 vga_out8(0x3d4, 0x33, par);
768 vga_out8(0x3d5, reg->CR33, par);
769 vga_out8(0x3d4, 0x86, par);
770 vga_out8(0x3d5, reg->CR86, par);
771 vga_out8(0x3d4, 0x88, par);
772 vga_out8(0x3d5, reg->CR88, par);
773 vga_out8(0x3d4, 0x90, par);
774 vga_out8(0x3d5, reg->CR90, par);
775 vga_out8(0x3d4, 0x91, par);
776 vga_out8(0x3d5, reg->CR91, par);
777 vga_out8(0x3d4, 0xb0, par);
778 vga_out8(0x3d5, reg->CRB0, par);
779
780 /* extended mode timing regs */
781 vga_out8(0x3d4, 0x3b, par);
782 vga_out8(0x3d5, reg->CR3B, par);
783 vga_out8(0x3d4, 0x3c, par);
784 vga_out8(0x3d5, reg->CR3C, par);
785 vga_out8(0x3d4, 0x43, par);
786 vga_out8(0x3d5, reg->CR43, par);
787 vga_out8(0x3d4, 0x5d, par);
788 vga_out8(0x3d5, reg->CR5D, par);
789 vga_out8(0x3d4, 0x5e, par);
790 vga_out8(0x3d5, reg->CR5E, par);
791 vga_out8(0x3d4, 0x65, par);
792 vga_out8(0x3d5, reg->CR65, par);
793
794 /* save seq extended regs for DCLK PLL programming */
795 vga_out8(0x3c4, 0x0e, par);
796 vga_out8(0x3c5, reg->SR0E, par);
797 vga_out8(0x3c4, 0x0f, par);
798 vga_out8(0x3c5, reg->SR0F, par);
799 vga_out8(0x3c4, 0x10, par);
800 vga_out8(0x3c5, reg->SR10, par);
801 vga_out8(0x3c4, 0x11, par);
802 vga_out8(0x3c5, reg->SR11, par);
803 vga_out8(0x3c4, 0x12, par);
804 vga_out8(0x3c5, reg->SR12, par);
805 vga_out8(0x3c4, 0x13, par);
806 vga_out8(0x3c5, reg->SR13, par);
807 vga_out8(0x3c4, 0x29, par);
808 vga_out8(0x3c5, reg->SR29, par);
809
810 vga_out8(0x3c4, 0x15, par);
811 vga_out8(0x3c5, reg->SR15, par);
812 vga_out8(0x3c4, 0x30, par);
813 vga_out8(0x3c5, reg->SR30, par);
814 vga_out8(0x3c4, 0x18, par);
815 vga_out8(0x3c5, reg->SR18, par);
816
817 /* Save flat panel expansion regsters. */
818 if (par->chip == S3_SAVAGE_MX) {
819 int i;
820
821 for (i = 0; i < 8; i++) {
822 vga_out8(0x3c4, 0x54+i, par);
823 vga_out8(0x3c5, reg->SR54[i], par);
824 }
825 }
826
827 vga_out8(0x3d4, 0x66, par);
828 cr66 = vga_in8(0x3d5, par);
829 vga_out8(0x3d5, cr66 | 0x80, par);
830 vga_out8(0x3d4, 0x3a, par);
831 cr3a = vga_in8(0x3d5, par);
832 vga_out8(0x3d5, cr3a | 0x80, par);
833
834 /* now save MIU regs */
835 if (par->chip != S3_SAVAGE_MX) {
836 savage_out32(FIFO_CONTROL_REG, reg->MMPR0, par);
837 savage_out32(MIU_CONTROL_REG, reg->MMPR1, par);
838 savage_out32(STREAMS_TIMEOUT_REG, reg->MMPR2, par);
839 savage_out32(MISC_TIMEOUT_REG, reg->MMPR3, par);
840 }
841
842 vga_out8(0x3d4, 0x3a, par);
843 vga_out8(0x3d5, cr3a, par);
844 vga_out8(0x3d4, 0x66, par);
845 vga_out8(0x3d5, cr66, par);
846 }
847
848 static void savage_update_var(struct fb_var_screeninfo *var,
849 const struct fb_videomode *modedb)
850 {
851 var->xres = var->xres_virtual = modedb->xres;
852 var->yres = modedb->yres;
853 if (var->yres_virtual < var->yres)
854 var->yres_virtual = var->yres;
855 var->xoffset = var->yoffset = 0;
856 var->pixclock = modedb->pixclock;
857 var->left_margin = modedb->left_margin;
858 var->right_margin = modedb->right_margin;
859 var->upper_margin = modedb->upper_margin;
860 var->lower_margin = modedb->lower_margin;
861 var->hsync_len = modedb->hsync_len;
862 var->vsync_len = modedb->vsync_len;
863 var->sync = modedb->sync;
864 var->vmode = modedb->vmode;
865 }
866
867 static int savagefb_check_var(struct fb_var_screeninfo *var,
868 struct fb_info *info)
869 {
870 struct savagefb_par *par = info->par;
871 int memlen, vramlen, mode_valid = 0;
872
873 DBG("savagefb_check_var");
874
875 var->transp.offset = 0;
876 var->transp.length = 0;
877 switch (var->bits_per_pixel) {
878 case 8:
879 var->red.offset = var->green.offset =
880 var->blue.offset = 0;
881 var->red.length = var->green.length =
882 var->blue.length = var->bits_per_pixel;
883 break;
884 case 16:
885 var->red.offset = 11;
886 var->red.length = 5;
887 var->green.offset = 5;
888 var->green.length = 6;
889 var->blue.offset = 0;
890 var->blue.length = 5;
891 break;
892 case 32:
893 var->transp.offset = 24;
894 var->transp.length = 8;
895 var->red.offset = 16;
896 var->red.length = 8;
897 var->green.offset = 8;
898 var->green.length = 8;
899 var->blue.offset = 0;
900 var->blue.length = 8;
901 break;
902
903 default:
904 return -EINVAL;
905 }
906
907 if (!info->monspecs.hfmax || !info->monspecs.vfmax ||
908 !info->monspecs.dclkmax || !fb_validate_mode(var, info))
909 mode_valid = 1;
910
911 /* calculate modeline if supported by monitor */
912 if (!mode_valid && info->monspecs.gtf) {
913 if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info))
914 mode_valid = 1;
915 }
916
917 if (!mode_valid) {
918 const struct fb_videomode *mode;
919
920 mode = fb_find_best_mode(var, &info->modelist);
921 if (mode) {
922 savage_update_var(var, mode);
923 mode_valid = 1;
924 }
925 }
926
927 if (!mode_valid && info->monspecs.modedb_len)
928 return -EINVAL;
929
930 /* Is the mode larger than the LCD panel? */
931 if (par->SavagePanelWidth &&
932 (var->xres > par->SavagePanelWidth ||
933 var->yres > par->SavagePanelHeight)) {
934 printk(KERN_INFO "Mode (%dx%d) larger than the LCD panel "
935 "(%dx%d)\n", var->xres, var->yres,
936 par->SavagePanelWidth,
937 par->SavagePanelHeight);
938 return -1;
939 }
940
941 if (var->yres_virtual < var->yres)
942 var->yres_virtual = var->yres;
943 if (var->xres_virtual < var->xres)
944 var->xres_virtual = var->xres;
945
946 vramlen = info->fix.smem_len;
947
948 memlen = var->xres_virtual * var->bits_per_pixel *
949 var->yres_virtual / 8;
950 if (memlen > vramlen) {
951 var->yres_virtual = vramlen * 8 /
952 (var->xres_virtual * var->bits_per_pixel);
953 memlen = var->xres_virtual * var->bits_per_pixel *
954 var->yres_virtual / 8;
955 }
956
957 /* we must round yres/xres down, we already rounded y/xres_virtual up
958 if it was possible. We should return -EINVAL, but I disagree */
959 if (var->yres_virtual < var->yres)
960 var->yres = var->yres_virtual;
961 if (var->xres_virtual < var->xres)
962 var->xres = var->xres_virtual;
963 if (var->xoffset + var->xres > var->xres_virtual)
964 var->xoffset = var->xres_virtual - var->xres;
965 if (var->yoffset + var->yres > var->yres_virtual)
966 var->yoffset = var->yres_virtual - var->yres;
967
968 return 0;
969 }
970
971
972 static int savagefb_decode_var(struct fb_var_screeninfo *var,
973 struct savagefb_par *par,
974 struct savage_reg *reg)
975 {
976 struct xtimings timings;
977 int width, dclk, i, j; /*, refresh; */
978 unsigned int m, n, r;
979 unsigned char tmp = 0;
980 unsigned int pixclock = var->pixclock;
981
982 DBG("savagefb_decode_var");
983
984 memset(&timings, 0, sizeof(timings));
985
986 if (!pixclock) pixclock = 10000; /* 10ns = 100MHz */
987 timings.Clock = 1000000000 / pixclock;
988 if (timings.Clock < 1) timings.Clock = 1;
989 timings.dblscan = var->vmode & FB_VMODE_DOUBLE;
990 timings.interlaced = var->vmode & FB_VMODE_INTERLACED;
991 timings.HDisplay = var->xres;
992 timings.HSyncStart = timings.HDisplay + var->right_margin;
993 timings.HSyncEnd = timings.HSyncStart + var->hsync_len;
994 timings.HTotal = timings.HSyncEnd + var->left_margin;
995 timings.VDisplay = var->yres;
996 timings.VSyncStart = timings.VDisplay + var->lower_margin;
997 timings.VSyncEnd = timings.VSyncStart + var->vsync_len;
998 timings.VTotal = timings.VSyncEnd + var->upper_margin;
999 timings.sync = var->sync;
1000
1001
1002 par->depth = var->bits_per_pixel;
1003 par->vwidth = var->xres_virtual;
1004
1005 if (var->bits_per_pixel == 16 && par->chip == S3_SAVAGE3D) {
1006 timings.HDisplay *= 2;
1007 timings.HSyncStart *= 2;
1008 timings.HSyncEnd *= 2;
1009 timings.HTotal *= 2;
1010 }
1011
1012 /*
1013 * This will allocate the datastructure and initialize all of the
1014 * generic VGA registers.
1015 */
1016 vgaHWInit(var, par, &timings, reg);
1017
1018 /* We need to set CR67 whether or not we use the BIOS. */
1019
1020 dclk = timings.Clock;
1021 reg->CR67 = 0x00;
1022
1023 switch(var->bits_per_pixel) {
1024 case 8:
1025 if ((par->chip == S3_SAVAGE2000) && (dclk >= 230000))
1026 reg->CR67 = 0x10; /* 8bpp, 2 pixels/clock */
1027 else
1028 reg->CR67 = 0x00; /* 8bpp, 1 pixel/clock */
1029 break;
1030 case 15:
1031 if (S3_SAVAGE_MOBILE_SERIES(par->chip) ||
1032 ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)))
1033 reg->CR67 = 0x30; /* 15bpp, 2 pixel/clock */
1034 else
1035 reg->CR67 = 0x20; /* 15bpp, 1 pixels/clock */
1036 break;
1037 case 16:
1038 if (S3_SAVAGE_MOBILE_SERIES(par->chip) ||
1039 ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)))
1040 reg->CR67 = 0x50; /* 16bpp, 2 pixel/clock */
1041 else
1042 reg->CR67 = 0x40; /* 16bpp, 1 pixels/clock */
1043 break;
1044 case 24:
1045 reg->CR67 = 0x70;
1046 break;
1047 case 32:
1048 reg->CR67 = 0xd0;
1049 break;
1050 }
1051
1052 /*
1053 * Either BIOS use is disabled, or we failed to find a suitable
1054 * match. Fall back to traditional register-crunching.
1055 */
1056
1057 vga_out8(0x3d4, 0x3a, par);
1058 tmp = vga_in8(0x3d5, par);
1059 if (1 /*FIXME:psav->pci_burst*/)
1060 reg->CR3A = (tmp & 0x7f) | 0x15;
1061 else
1062 reg->CR3A = tmp | 0x95;
1063
1064 reg->CR53 = 0x00;
1065 reg->CR31 = 0x8c;
1066 reg->CR66 = 0x89;
1067
1068 vga_out8(0x3d4, 0x58, par);
1069 reg->CR58 = vga_in8(0x3d5, par) & 0x80;
1070 reg->CR58 |= 0x13;
1071
1072 reg->SR15 = 0x03 | 0x80;
1073 reg->SR18 = 0x00;
1074 reg->CR43 = reg->CR45 = reg->CR65 = 0x00;
1075
1076 vga_out8(0x3d4, 0x40, par);
1077 reg->CR40 = vga_in8(0x3d5, par) & ~0x01;
1078
1079 reg->MMPR0 = 0x010400;
1080 reg->MMPR1 = 0x00;
1081 reg->MMPR2 = 0x0808;
1082 reg->MMPR3 = 0x08080810;
1083
1084 SavageCalcClock(dclk, 1, 1, 127, 0, 4, 180000, 360000, &m, &n, &r);
1085 /* m = 107; n = 4; r = 2; */
1086
1087 if (par->MCLK <= 0) {
1088 reg->SR10 = 255;
1089 reg->SR11 = 255;
1090 } else {
1091 common_calc_clock(par->MCLK, 1, 1, 31, 0, 3, 135000, 270000,
1092 &reg->SR11, &reg->SR10);
1093 /* reg->SR10 = 80; // MCLK == 286000 */
1094 /* reg->SR11 = 125; */
1095 }
1096
1097 reg->SR12 = (r << 6) | (n & 0x3f);
1098 reg->SR13 = m & 0xff;
1099 reg->SR29 = (r & 4) | (m & 0x100) >> 5 | (n & 0x40) >> 2;
1100
1101 if (var->bits_per_pixel < 24)
1102 reg->MMPR0 -= 0x8000;
1103 else
1104 reg->MMPR0 -= 0x4000;
1105
1106 if (timings.interlaced)
1107 reg->CR42 = 0x20;
1108 else
1109 reg->CR42 = 0x00;
1110
1111 reg->CR34 = 0x10; /* display fifo */
1112
1113 i = ((((timings.HTotal >> 3) - 5) & 0x100) >> 8) |
1114 ((((timings.HDisplay >> 3) - 1) & 0x100) >> 7) |
1115 ((((timings.HSyncStart >> 3) - 1) & 0x100) >> 6) |
1116 ((timings.HSyncStart & 0x800) >> 7);
1117
1118 if ((timings.HSyncEnd >> 3) - (timings.HSyncStart >> 3) > 64)
1119 i |= 0x08;
1120 if ((timings.HSyncEnd >> 3) - (timings.HSyncStart >> 3) > 32)
1121 i |= 0x20;
1122
1123 j = (reg->CRTC[0] + ((i & 0x01) << 8) +
1124 reg->CRTC[4] + ((i & 0x10) << 4) + 1) / 2;
1125
1126 if (j - (reg->CRTC[4] + ((i & 0x10) << 4)) < 4) {
1127 if (reg->CRTC[4] + ((i & 0x10) << 4) + 4 <=
1128 reg->CRTC[0] + ((i & 0x01) << 8))
1129 j = reg->CRTC[4] + ((i & 0x10) << 4) + 4;
1130 else
1131 j = reg->CRTC[0] + ((i & 0x01) << 8) + 1;
1132 }
1133
1134 reg->CR3B = j & 0xff;
1135 i |= (j & 0x100) >> 2;
1136 reg->CR3C = (reg->CRTC[0] + ((i & 0x01) << 8)) / 2;
1137 reg->CR5D = i;
1138 reg->CR5E = (((timings.VTotal - 2) & 0x400) >> 10) |
1139 (((timings.VDisplay - 1) & 0x400) >> 9) |
1140 (((timings.VSyncStart) & 0x400) >> 8) |
1141 (((timings.VSyncStart) & 0x400) >> 6) | 0x40;
1142 width = (var->xres_virtual * ((var->bits_per_pixel+7) / 8)) >> 3;
1143 reg->CR91 = reg->CRTC[19] = 0xff & width;
1144 reg->CR51 = (0x300 & width) >> 4;
1145 reg->CR90 = 0x80 | (width >> 8);
1146 reg->MiscOutReg |= 0x0c;
1147
1148 /* Set frame buffer description. */
1149
1150 if (var->bits_per_pixel <= 8)
1151 reg->CR50 = 0;
1152 else if (var->bits_per_pixel <= 16)
1153 reg->CR50 = 0x10;
1154 else
1155 reg->CR50 = 0x30;
1156
1157 if (var->xres_virtual <= 640)
1158 reg->CR50 |= 0x40;
1159 else if (var->xres_virtual == 800)
1160 reg->CR50 |= 0x80;
1161 else if (var->xres_virtual == 1024)
1162 reg->CR50 |= 0x00;
1163 else if (var->xres_virtual == 1152)
1164 reg->CR50 |= 0x01;
1165 else if (var->xres_virtual == 1280)
1166 reg->CR50 |= 0xc0;
1167 else if (var->xres_virtual == 1600)
1168 reg->CR50 |= 0x81;
1169 else
1170 reg->CR50 |= 0xc1; /* Use GBD */
1171
1172 if (par->chip == S3_SAVAGE2000)
1173 reg->CR33 = 0x08;
1174 else
1175 reg->CR33 = 0x20;
1176
1177 reg->CRTC[0x17] = 0xeb;
1178
1179 reg->CR67 |= 1;
1180
1181 vga_out8(0x3d4, 0x36, par);
1182 reg->CR36 = vga_in8(0x3d5, par);
1183 vga_out8(0x3d4, 0x68, par);
1184 reg->CR68 = vga_in8(0x3d5, par);
1185 reg->CR69 = 0;
1186 vga_out8(0x3d4, 0x6f, par);
1187 reg->CR6F = vga_in8(0x3d5, par);
1188 vga_out8(0x3d4, 0x86, par);
1189 reg->CR86 = vga_in8(0x3d5, par);
1190 vga_out8(0x3d4, 0x88, par);
1191 reg->CR88 = vga_in8(0x3d5, par) | 0x08;
1192 vga_out8(0x3d4, 0xb0, par);
1193 reg->CRB0 = vga_in8(0x3d5, par) | 0x80;
1194
1195 return 0;
1196 }
1197
1198 /* --------------------------------------------------------------------- */
1199
1200 /*
1201 * Set a single color register. Return != 0 for invalid regno.
1202 */
1203 static int savagefb_setcolreg(unsigned regno,
1204 unsigned red,
1205 unsigned green,
1206 unsigned blue,
1207 unsigned transp,
1208 struct fb_info *info)
1209 {
1210 struct savagefb_par *par = info->par;
1211
1212 if (regno >= NR_PALETTE)
1213 return -EINVAL;
1214
1215 par->palette[regno].red = red;
1216 par->palette[regno].green = green;
1217 par->palette[regno].blue = blue;
1218 par->palette[regno].transp = transp;
1219
1220 switch (info->var.bits_per_pixel) {
1221 case 8:
1222 vga_out8(0x3c8, regno, par);
1223
1224 vga_out8(0x3c9, red >> 10, par);
1225 vga_out8(0x3c9, green >> 10, par);
1226 vga_out8(0x3c9, blue >> 10, par);
1227 break;
1228
1229 case 16:
1230 if (regno < 16)
1231 ((u32 *)info->pseudo_palette)[regno] =
1232 ((red & 0xf800) ) |
1233 ((green & 0xfc00) >> 5) |
1234 ((blue & 0xf800) >> 11);
1235 break;
1236
1237 case 24:
1238 if (regno < 16)
1239 ((u32 *)info->pseudo_palette)[regno] =
1240 ((red & 0xff00) << 8) |
1241 ((green & 0xff00) ) |
1242 ((blue & 0xff00) >> 8);
1243 break;
1244 case 32:
1245 if (regno < 16)
1246 ((u32 *)info->pseudo_palette)[regno] =
1247 ((transp & 0xff00) << 16) |
1248 ((red & 0xff00) << 8) |
1249 ((green & 0xff00) ) |
1250 ((blue & 0xff00) >> 8);
1251 break;
1252
1253 default:
1254 return 1;
1255 }
1256
1257 return 0;
1258 }
1259
1260 static void savagefb_set_par_int(struct savagefb_par *par, struct savage_reg *reg)
1261 {
1262 unsigned char tmp, cr3a, cr66, cr67;
1263
1264 DBG("savagefb_set_par_int");
1265
1266 par->SavageWaitIdle(par);
1267
1268 vga_out8(0x3c2, 0x23, par);
1269
1270 vga_out16(0x3d4, 0x4838, par);
1271 vga_out16(0x3d4, 0xa539, par);
1272 vga_out16(0x3c4, 0x0608, par);
1273
1274 vgaHWProtect(par, 1);
1275
1276 /*
1277 * Some Savage/MX and /IX systems go nuts when trying to exit the
1278 * server after WindowMaker has displayed a gradient background. I
1279 * haven't been able to find what causes it, but a non-destructive
1280 * switch to mode 3 here seems to eliminate the issue.
1281 */
1282
1283 VerticalRetraceWait(par);
1284 vga_out8(0x3d4, 0x67, par);
1285 cr67 = vga_in8(0x3d5, par);
1286 vga_out8(0x3d5, cr67/*par->CR67*/ & ~0x0c, par); /* no STREAMS yet */
1287
1288 vga_out8(0x3d4, 0x23, par);
1289 vga_out8(0x3d5, 0x00, par);
1290 vga_out8(0x3d4, 0x26, par);
1291 vga_out8(0x3d5, 0x00, par);
1292
1293 /* restore extended regs */
1294 vga_out8(0x3d4, 0x66, par);
1295 vga_out8(0x3d5, reg->CR66, par);
1296 vga_out8(0x3d4, 0x3a, par);
1297 vga_out8(0x3d5, reg->CR3A, par);
1298 vga_out8(0x3d4, 0x31, par);
1299 vga_out8(0x3d5, reg->CR31, par);
1300 vga_out8(0x3d4, 0x32, par);
1301 vga_out8(0x3d5, reg->CR32, par);
1302 vga_out8(0x3d4, 0x58, par);
1303 vga_out8(0x3d5, reg->CR58, par);
1304 vga_out8(0x3d4, 0x53, par);
1305 vga_out8(0x3d5, reg->CR53 & 0x7f, par);
1306
1307 vga_out16(0x3c4, 0x0608, par);
1308
1309 /* Restore DCLK registers. */
1310
1311 vga_out8(0x3c4, 0x0e, par);
1312 vga_out8(0x3c5, reg->SR0E, par);
1313 vga_out8(0x3c4, 0x0f, par);
1314 vga_out8(0x3c5, reg->SR0F, par);
1315 vga_out8(0x3c4, 0x29, par);
1316 vga_out8(0x3c5, reg->SR29, par);
1317 vga_out8(0x3c4, 0x15, par);
1318 vga_out8(0x3c5, reg->SR15, par);
1319
1320 /* Restore flat panel expansion regsters. */
1321 if (par->chip == S3_SAVAGE_MX) {
1322 int i;
1323
1324 for (i = 0; i < 8; i++) {
1325 vga_out8(0x3c4, 0x54+i, par);
1326 vga_out8(0x3c5, reg->SR54[i], par);
1327 }
1328 }
1329
1330 vgaHWRestore (par, reg);
1331
1332 /* extended mode timing registers */
1333 vga_out8(0x3d4, 0x53, par);
1334 vga_out8(0x3d5, reg->CR53, par);
1335 vga_out8(0x3d4, 0x5d, par);
1336 vga_out8(0x3d5, reg->CR5D, par);
1337 vga_out8(0x3d4, 0x5e, par);
1338 vga_out8(0x3d5, reg->CR5E, par);
1339 vga_out8(0x3d4, 0x3b, par);
1340 vga_out8(0x3d5, reg->CR3B, par);
1341 vga_out8(0x3d4, 0x3c, par);
1342 vga_out8(0x3d5, reg->CR3C, par);
1343 vga_out8(0x3d4, 0x43, par);
1344 vga_out8(0x3d5, reg->CR43, par);
1345 vga_out8(0x3d4, 0x65, par);
1346 vga_out8(0x3d5, reg->CR65, par);
1347
1348 /* restore the desired video mode with cr67 */
1349 vga_out8(0x3d4, 0x67, par);
1350 /* following part not present in X11 driver */
1351 cr67 = vga_in8(0x3d5, par) & 0xf;
1352 vga_out8(0x3d5, 0x50 | cr67, par);
1353 udelay(10000);
1354 vga_out8(0x3d4, 0x67, par);
1355 /* end of part */
1356 vga_out8(0x3d5, reg->CR67 & ~0x0c, par);
1357
1358 /* other mode timing and extended regs */
1359 vga_out8(0x3d4, 0x34, par);
1360 vga_out8(0x3d5, reg->CR34, par);
1361 vga_out8(0x3d4, 0x40, par);
1362 vga_out8(0x3d5, reg->CR40, par);
1363 vga_out8(0x3d4, 0x42, par);
1364 vga_out8(0x3d5, reg->CR42, par);
1365 vga_out8(0x3d4, 0x45, par);
1366 vga_out8(0x3d5, reg->CR45, par);
1367 vga_out8(0x3d4, 0x50, par);
1368 vga_out8(0x3d5, reg->CR50, par);
1369 vga_out8(0x3d4, 0x51, par);
1370 vga_out8(0x3d5, reg->CR51, par);
1371
1372 /* memory timings */
1373 vga_out8(0x3d4, 0x36, par);
1374 vga_out8(0x3d5, reg->CR36, par);
1375 vga_out8(0x3d4, 0x60, par);
1376 vga_out8(0x3d5, reg->CR60, par);
1377 vga_out8(0x3d4, 0x68, par);
1378 vga_out8(0x3d5, reg->CR68, par);
1379 vga_out8(0x3d4, 0x69, par);
1380 vga_out8(0x3d5, reg->CR69, par);
1381 vga_out8(0x3d4, 0x6f, par);
1382 vga_out8(0x3d5, reg->CR6F, par);
1383
1384 vga_out8(0x3d4, 0x33, par);
1385 vga_out8(0x3d5, reg->CR33, par);
1386 vga_out8(0x3d4, 0x86, par);
1387 vga_out8(0x3d5, reg->CR86, par);
1388 vga_out8(0x3d4, 0x88, par);
1389 vga_out8(0x3d5, reg->CR88, par);
1390 vga_out8(0x3d4, 0x90, par);
1391 vga_out8(0x3d5, reg->CR90, par);
1392 vga_out8(0x3d4, 0x91, par);
1393 vga_out8(0x3d5, reg->CR91, par);
1394
1395 if (par->chip == S3_SAVAGE4) {
1396 vga_out8(0x3d4, 0xb0, par);
1397 vga_out8(0x3d5, reg->CRB0, par);
1398 }
1399
1400 vga_out8(0x3d4, 0x32, par);
1401 vga_out8(0x3d5, reg->CR32, par);
1402
1403 /* unlock extended seq regs */
1404 vga_out8(0x3c4, 0x08, par);
1405 vga_out8(0x3c5, 0x06, par);
1406
1407 /* Restore extended sequencer regs for MCLK. SR10 == 255 indicates
1408 * that we should leave the default SR10 and SR11 values there.
1409 */
1410 if (reg->SR10 != 255) {
1411 vga_out8(0x3c4, 0x10, par);
1412 vga_out8(0x3c5, reg->SR10, par);
1413 vga_out8(0x3c4, 0x11, par);
1414 vga_out8(0x3c5, reg->SR11, par);
1415 }
1416
1417 /* restore extended seq regs for dclk */
1418 vga_out8(0x3c4, 0x0e, par);
1419 vga_out8(0x3c5, reg->SR0E, par);
1420 vga_out8(0x3c4, 0x0f, par);
1421 vga_out8(0x3c5, reg->SR0F, par);
1422 vga_out8(0x3c4, 0x12, par);
1423 vga_out8(0x3c5, reg->SR12, par);
1424 vga_out8(0x3c4, 0x13, par);
1425 vga_out8(0x3c5, reg->SR13, par);
1426 vga_out8(0x3c4, 0x29, par);
1427 vga_out8(0x3c5, reg->SR29, par);
1428 vga_out8(0x3c4, 0x18, par);
1429 vga_out8(0x3c5, reg->SR18, par);
1430
1431 /* load new m, n pll values for dclk & mclk */
1432 vga_out8(0x3c4, 0x15, par);
1433 tmp = vga_in8(0x3c5, par) & ~0x21;
1434
1435 vga_out8(0x3c5, tmp | 0x03, par);
1436 vga_out8(0x3c5, tmp | 0x23, par);
1437 vga_out8(0x3c5, tmp | 0x03, par);
1438 vga_out8(0x3c5, reg->SR15, par);
1439 udelay(100);
1440
1441 vga_out8(0x3c4, 0x30, par);
1442 vga_out8(0x3c5, reg->SR30, par);
1443 vga_out8(0x3c4, 0x08, par);
1444 vga_out8(0x3c5, reg->SR08, par);
1445
1446 /* now write out cr67 in full, possibly starting STREAMS */
1447 VerticalRetraceWait(par);
1448 vga_out8(0x3d4, 0x67, par);
1449 vga_out8(0x3d5, reg->CR67, par);
1450
1451 vga_out8(0x3d4, 0x66, par);
1452 cr66 = vga_in8(0x3d5, par);
1453 vga_out8(0x3d5, cr66 | 0x80, par);
1454 vga_out8(0x3d4, 0x3a, par);
1455 cr3a = vga_in8(0x3d5, par);
1456 vga_out8(0x3d5, cr3a | 0x80, par);
1457
1458 if (par->chip != S3_SAVAGE_MX) {
1459 VerticalRetraceWait(par);
1460 savage_out32(FIFO_CONTROL_REG, reg->MMPR0, par);
1461 par->SavageWaitIdle(par);
1462 savage_out32(MIU_CONTROL_REG, reg->MMPR1, par);
1463 par->SavageWaitIdle(par);
1464 savage_out32(STREAMS_TIMEOUT_REG, reg->MMPR2, par);
1465 par->SavageWaitIdle(par);
1466 savage_out32(MISC_TIMEOUT_REG, reg->MMPR3, par);
1467 }
1468
1469 vga_out8(0x3d4, 0x66, par);
1470 vga_out8(0x3d5, cr66, par);
1471 vga_out8(0x3d4, 0x3a, par);
1472 vga_out8(0x3d5, cr3a, par);
1473
1474 SavageSetup2DEngine(par);
1475 vgaHWProtect(par, 0);
1476 }
1477
1478 static void savagefb_update_start(struct savagefb_par *par,
1479 struct fb_var_screeninfo *var)
1480 {
1481 int base;
1482
1483 base = ((var->yoffset * var->xres_virtual + (var->xoffset & ~1))
1484 * ((var->bits_per_pixel+7) / 8)) >> 2;
1485
1486 /* now program the start address registers */
1487 vga_out16(0x3d4, (base & 0x00ff00) | 0x0c, par);
1488 vga_out16(0x3d4, ((base & 0x00ff) << 8) | 0x0d, par);
1489 vga_out8(0x3d4, 0x69, par);
1490 vga_out8(0x3d5, (base & 0x7f0000) >> 16, par);
1491 }
1492
1493
1494 static void savagefb_set_fix(struct fb_info *info)
1495 {
1496 info->fix.line_length = info->var.xres_virtual *
1497 info->var.bits_per_pixel / 8;
1498
1499 if (info->var.bits_per_pixel == 8) {
1500 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
1501 info->fix.xpanstep = 4;
1502 } else {
1503 info->fix.visual = FB_VISUAL_TRUECOLOR;
1504 info->fix.xpanstep = 2;
1505 }
1506
1507 }
1508
1509 static int savagefb_set_par(struct fb_info *info)
1510 {
1511 struct savagefb_par *par = info->par;
1512 struct fb_var_screeninfo *var = &info->var;
1513 int err;
1514
1515 DBG("savagefb_set_par");
1516 err = savagefb_decode_var(var, par, &par->state);
1517 if (err)
1518 return err;
1519
1520 if (par->dacSpeedBpp <= 0) {
1521 if (var->bits_per_pixel > 24)
1522 par->dacSpeedBpp = par->clock[3];
1523 else if (var->bits_per_pixel >= 24)
1524 par->dacSpeedBpp = par->clock[2];
1525 else if ((var->bits_per_pixel > 8) && (var->bits_per_pixel < 24))
1526 par->dacSpeedBpp = par->clock[1];
1527 else if (var->bits_per_pixel <= 8)
1528 par->dacSpeedBpp = par->clock[0];
1529 }
1530
1531 /* Set ramdac limits */
1532 par->maxClock = par->dacSpeedBpp;
1533 par->minClock = 10000;
1534
1535 savagefb_set_par_int(par, &par->state);
1536 fb_set_cmap(&info->cmap, info);
1537 savagefb_set_fix(info);
1538 savagefb_set_clip(info);
1539
1540 SavagePrintRegs(par);
1541 return 0;
1542 }
1543
1544 /*
1545 * Pan or Wrap the Display
1546 */
1547 static int savagefb_pan_display(struct fb_var_screeninfo *var,
1548 struct fb_info *info)
1549 {
1550 struct savagefb_par *par = info->par;
1551
1552 savagefb_update_start(par, var);
1553 return 0;
1554 }
1555
1556 static int savagefb_blank(int blank, struct fb_info *info)
1557 {
1558 struct savagefb_par *par = info->par;
1559 u8 sr8 = 0, srd = 0;
1560
1561 if (par->display_type == DISP_CRT) {
1562 vga_out8(0x3c4, 0x08, par);
1563 sr8 = vga_in8(0x3c5, par);
1564 sr8 |= 0x06;
1565 vga_out8(0x3c5, sr8, par);
1566 vga_out8(0x3c4, 0x0d, par);
1567 srd = vga_in8(0x3c5, par);
1568 srd &= 0x03;
1569
1570 switch (blank) {
1571 case FB_BLANK_UNBLANK:
1572 case FB_BLANK_NORMAL:
1573 break;
1574 case FB_BLANK_VSYNC_SUSPEND:
1575 srd |= 0x10;
1576 break;
1577 case FB_BLANK_HSYNC_SUSPEND:
1578 srd |= 0x40;
1579 break;
1580 case FB_BLANK_POWERDOWN:
1581 srd |= 0x50;
1582 break;
1583 }
1584
1585 vga_out8(0x3c4, 0x0d, par);
1586 vga_out8(0x3c5, srd, par);
1587 }
1588
1589 if (par->display_type == DISP_LCD ||
1590 par->display_type == DISP_DFP) {
1591 switch(blank) {
1592 case FB_BLANK_UNBLANK:
1593 case FB_BLANK_NORMAL:
1594 vga_out8(0x3c4, 0x31, par); /* SR31 bit 4 - FP enable */
1595 vga_out8(0x3c5, vga_in8(0x3c5, par) | 0x10, par);
1596 break;
1597 case FB_BLANK_VSYNC_SUSPEND:
1598 case FB_BLANK_HSYNC_SUSPEND:
1599 case FB_BLANK_POWERDOWN:
1600 vga_out8(0x3c4, 0x31, par); /* SR31 bit 4 - FP enable */
1601 vga_out8(0x3c5, vga_in8(0x3c5, par) & ~0x10, par);
1602 break;
1603 }
1604 }
1605
1606 return (blank == FB_BLANK_NORMAL) ? 1 : 0;
1607 }
1608
1609 static void savagefb_save_state(struct fb_info *info)
1610 {
1611 struct savagefb_par *par = info->par;
1612
1613 savage_get_default_par(par, &par->save);
1614 }
1615
1616 static void savagefb_restore_state(struct fb_info *info)
1617 {
1618 struct savagefb_par *par = info->par;
1619
1620 savagefb_blank(FB_BLANK_POWERDOWN, info);
1621 savage_set_default_par(par, &par->save);
1622 savagefb_blank(FB_BLANK_UNBLANK, info);
1623 }
1624
1625 static int savagefb_open(struct fb_info *info, int user)
1626 {
1627 struct savagefb_par *par = info->par;
1628
1629 mutex_lock(&par->open_lock);
1630
1631 if (!par->open_count) {
1632 memset(&par->vgastate, 0, sizeof(par->vgastate));
1633 par->vgastate.flags = VGA_SAVE_CMAP | VGA_SAVE_FONTS |
1634 VGA_SAVE_MODE;
1635 par->vgastate.vgabase = par->mmio.vbase + 0x8000;
1636 save_vga(&par->vgastate);
1637 savage_get_default_par(par, &par->initial);
1638 }
1639
1640 par->open_count++;
1641 mutex_unlock(&par->open_lock);
1642 return 0;
1643 }
1644
1645 static int savagefb_release(struct fb_info *info, int user)
1646 {
1647 struct savagefb_par *par = info->par;
1648
1649 mutex_lock(&par->open_lock);
1650
1651 if (par->open_count == 1) {
1652 savage_set_default_par(par, &par->initial);
1653 restore_vga(&par->vgastate);
1654 }
1655
1656 par->open_count--;
1657 mutex_unlock(&par->open_lock);
1658 return 0;
1659 }
1660
1661 static struct fb_ops savagefb_ops = {
1662 .owner = THIS_MODULE,
1663 .fb_open = savagefb_open,
1664 .fb_release = savagefb_release,
1665 .fb_check_var = savagefb_check_var,
1666 .fb_set_par = savagefb_set_par,
1667 .fb_setcolreg = savagefb_setcolreg,
1668 .fb_pan_display = savagefb_pan_display,
1669 .fb_blank = savagefb_blank,
1670 .fb_save_state = savagefb_save_state,
1671 .fb_restore_state = savagefb_restore_state,
1672 #if defined(CONFIG_FB_SAVAGE_ACCEL)
1673 .fb_fillrect = savagefb_fillrect,
1674 .fb_copyarea = savagefb_copyarea,
1675 .fb_imageblit = savagefb_imageblit,
1676 .fb_sync = savagefb_sync,
1677 #else
1678 .fb_fillrect = cfb_fillrect,
1679 .fb_copyarea = cfb_copyarea,
1680 .fb_imageblit = cfb_imageblit,
1681 #endif
1682 };
1683
1684 /* --------------------------------------------------------------------- */
1685
1686 static struct fb_var_screeninfo __devinitdata savagefb_var800x600x8 = {
1687 .accel_flags = FB_ACCELF_TEXT,
1688 .xres = 800,
1689 .yres = 600,
1690 .xres_virtual = 800,
1691 .yres_virtual = 600,
1692 .bits_per_pixel = 8,
1693 .pixclock = 25000,
1694 .left_margin = 88,
1695 .right_margin = 40,
1696 .upper_margin = 23,
1697 .lower_margin = 1,
1698 .hsync_len = 128,
1699 .vsync_len = 4,
1700 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
1701 .vmode = FB_VMODE_NONINTERLACED
1702 };
1703
1704 static void savage_enable_mmio(struct savagefb_par *par)
1705 {
1706 unsigned char val;
1707
1708 DBG("savage_enable_mmio\n");
1709
1710 val = vga_in8(0x3c3, par);
1711 vga_out8(0x3c3, val | 0x01, par);
1712 val = vga_in8(0x3cc, par);
1713 vga_out8(0x3c2, val | 0x01, par);
1714
1715 if (par->chip >= S3_SAVAGE4) {
1716 vga_out8(0x3d4, 0x40, par);
1717 val = vga_in8(0x3d5, par);
1718 vga_out8(0x3d5, val | 1, par);
1719 }
1720 }
1721
1722
1723 static void savage_disable_mmio(struct savagefb_par *par)
1724 {
1725 unsigned char val;
1726
1727 DBG("savage_disable_mmio\n");
1728
1729 if (par->chip >= S3_SAVAGE4) {
1730 vga_out8(0x3d4, 0x40, par);
1731 val = vga_in8(0x3d5, par);
1732 vga_out8(0x3d5, val | 1, par);
1733 }
1734 }
1735
1736
1737 static int __devinit savage_map_mmio(struct fb_info *info)
1738 {
1739 struct savagefb_par *par = info->par;
1740 DBG("savage_map_mmio");
1741
1742 if (S3_SAVAGE3D_SERIES(par->chip))
1743 par->mmio.pbase = pci_resource_start(par->pcidev, 0) +
1744 SAVAGE_NEWMMIO_REGBASE_S3;
1745 else
1746 par->mmio.pbase = pci_resource_start(par->pcidev, 0) +
1747 SAVAGE_NEWMMIO_REGBASE_S4;
1748
1749 par->mmio.len = SAVAGE_NEWMMIO_REGSIZE;
1750
1751 par->mmio.vbase = ioremap(par->mmio.pbase, par->mmio.len);
1752 if (!par->mmio.vbase) {
1753 printk("savagefb: unable to map memory mapped IO\n");
1754 return -ENOMEM;
1755 } else
1756 printk(KERN_INFO "savagefb: mapped io at %p\n",
1757 par->mmio.vbase);
1758
1759 info->fix.mmio_start = par->mmio.pbase;
1760 info->fix.mmio_len = par->mmio.len;
1761
1762 par->bci_base = (u32 __iomem *)(par->mmio.vbase + BCI_BUFFER_OFFSET);
1763 par->bci_ptr = 0;
1764
1765 savage_enable_mmio(par);
1766
1767 return 0;
1768 }
1769
1770 static void savage_unmap_mmio(struct fb_info *info)
1771 {
1772 struct savagefb_par *par = info->par;
1773 DBG("savage_unmap_mmio");
1774
1775 savage_disable_mmio(par);
1776
1777 if (par->mmio.vbase) {
1778 iounmap(par->mmio.vbase);
1779 par->mmio.vbase = NULL;
1780 }
1781 }
1782
1783 static int __devinit savage_map_video(struct fb_info *info,
1784 int video_len)
1785 {
1786 struct savagefb_par *par = info->par;
1787 int resource;
1788
1789 DBG("savage_map_video");
1790
1791 if (S3_SAVAGE3D_SERIES(par->chip))
1792 resource = 0;
1793 else
1794 resource = 1;
1795
1796 par->video.pbase = pci_resource_start(par->pcidev, resource);
1797 par->video.len = video_len;
1798 par->video.vbase = ioremap(par->video.pbase, par->video.len);
1799
1800 if (!par->video.vbase) {
1801 printk("savagefb: unable to map screen memory\n");
1802 return -ENOMEM;
1803 } else
1804 printk(KERN_INFO "savagefb: mapped framebuffer at %p, "
1805 "pbase == %x\n", par->video.vbase, par->video.pbase);
1806
1807 info->fix.smem_start = par->video.pbase;
1808 info->fix.smem_len = par->video.len - par->cob_size;
1809 info->screen_base = par->video.vbase;
1810
1811 #ifdef CONFIG_MTRR
1812 par->video.mtrr = mtrr_add(par->video.pbase, video_len,
1813 MTRR_TYPE_WRCOMB, 1);
1814 #endif
1815
1816 /* Clear framebuffer, it's all white in memory after boot */
1817 memset_io(par->video.vbase, 0, par->video.len);
1818
1819 return 0;
1820 }
1821
1822 static void savage_unmap_video(struct fb_info *info)
1823 {
1824 struct savagefb_par *par = info->par;
1825
1826 DBG("savage_unmap_video");
1827
1828 if (par->video.vbase) {
1829 #ifdef CONFIG_MTRR
1830 mtrr_del(par->video.mtrr, par->video.pbase, par->video.len);
1831 #endif
1832
1833 iounmap(par->video.vbase);
1834 par->video.vbase = NULL;
1835 info->screen_base = NULL;
1836 }
1837 }
1838
1839 static int savage_init_hw(struct savagefb_par *par)
1840 {
1841 unsigned char config1, m, n, n1, n2, sr8, cr3f, cr66 = 0, tmp;
1842
1843 static unsigned char RamSavage3D[] = { 8, 4, 4, 2 };
1844 static unsigned char RamSavage4[] = { 2, 4, 8, 12, 16, 32, 64, 32 };
1845 static unsigned char RamSavageMX[] = { 2, 8, 4, 16, 8, 16, 4, 16 };
1846 static unsigned char RamSavageNB[] = { 0, 2, 4, 8, 16, 32, 2, 2 };
1847 int videoRam, videoRambytes, dvi;
1848
1849 DBG("savage_init_hw");
1850
1851 /* unprotect CRTC[0-7] */
1852 vga_out8(0x3d4, 0x11, par);
1853 tmp = vga_in8(0x3d5, par);
1854 vga_out8(0x3d5, tmp & 0x7f, par);
1855
1856 /* unlock extended regs */
1857 vga_out16(0x3d4, 0x4838, par);
1858 vga_out16(0x3d4, 0xa039, par);
1859 vga_out16(0x3c4, 0x0608, par);
1860
1861 vga_out8(0x3d4, 0x40, par);
1862 tmp = vga_in8(0x3d5, par);
1863 vga_out8(0x3d5, tmp & ~0x01, par);
1864
1865 /* unlock sys regs */
1866 vga_out8(0x3d4, 0x38, par);
1867 vga_out8(0x3d5, 0x48, par);
1868
1869 /* Unlock system registers. */
1870 vga_out16(0x3d4, 0x4838, par);
1871
1872 /* Next go on to detect amount of installed ram */
1873
1874 vga_out8(0x3d4, 0x36, par); /* for register CR36 (CONFG_REG1), */
1875 config1 = vga_in8(0x3d5, par); /* get amount of vram installed */
1876
1877 /* Compute the amount of video memory and offscreen memory. */
1878
1879 switch (par->chip) {
1880 case S3_SAVAGE3D:
1881 videoRam = RamSavage3D[(config1 & 0xC0) >> 6 ] * 1024;
1882 break;
1883
1884 case S3_SAVAGE4:
1885 /*
1886 * The Savage4 has one ugly special case to consider. On
1887 * systems with 4 banks of 2Mx32 SDRAM, the BIOS says 4MB
1888 * when it really means 8MB. Why do it the same when you
1889 * can do it different...
1890 */
1891 vga_out8(0x3d4, 0x68, par); /* memory control 1 */
1892 if ((vga_in8(0x3d5, par) & 0xC0) == (0x01 << 6))
1893 RamSavage4[1] = 8;
1894
1895 /*FALLTHROUGH*/
1896
1897 case S3_SAVAGE2000:
1898 videoRam = RamSavage4[(config1 & 0xE0) >> 5] * 1024;
1899 break;
1900
1901 case S3_SAVAGE_MX:
1902 case S3_SUPERSAVAGE:
1903 videoRam = RamSavageMX[(config1 & 0x0E) >> 1] * 1024;
1904 break;
1905
1906 case S3_PROSAVAGE:
1907 videoRam = RamSavageNB[(config1 & 0xE0) >> 5] * 1024;
1908 break;
1909
1910 default:
1911 /* How did we get here? */
1912 videoRam = 0;
1913 break;
1914 }
1915
1916 videoRambytes = videoRam * 1024;
1917
1918 printk(KERN_INFO "savagefb: probed videoram: %dk\n", videoRam);
1919
1920 /* reset graphics engine to avoid memory corruption */
1921 vga_out8(0x3d4, 0x66, par);
1922 cr66 = vga_in8(0x3d5, par);
1923 vga_out8(0x3d5, cr66 | 0x02, par);
1924 udelay(10000);
1925
1926 vga_out8(0x3d4, 0x66, par);
1927 vga_out8(0x3d5, cr66 & ~0x02, par); /* clear reset flag */
1928 udelay(10000);
1929
1930
1931 /*
1932 * reset memory interface, 3D engine, AGP master, PCI master,
1933 * master engine unit, motion compensation/LPB
1934 */
1935 vga_out8(0x3d4, 0x3f, par);
1936 cr3f = vga_in8(0x3d5, par);
1937 vga_out8(0x3d5, cr3f | 0x08, par);
1938 udelay(10000);
1939
1940 vga_out8(0x3d4, 0x3f, par);
1941 vga_out8(0x3d5, cr3f & ~0x08, par); /* clear reset flags */
1942 udelay(10000);
1943
1944 /* Savage ramdac speeds */
1945 par->numClocks = 4;
1946 par->clock[0] = 250000;
1947 par->clock[1] = 250000;
1948 par->clock[2] = 220000;
1949 par->clock[3] = 220000;
1950
1951 /* detect current mclk */
1952 vga_out8(0x3c4, 0x08, par);
1953 sr8 = vga_in8(0x3c5, par);
1954 vga_out8(0x3c5, 0x06, par);
1955 vga_out8(0x3c4, 0x10, par);
1956 n = vga_in8(0x3c5, par);
1957 vga_out8(0x3c4, 0x11, par);
1958 m = vga_in8(0x3c5, par);
1959 vga_out8(0x3c4, 0x08, par);
1960 vga_out8(0x3c5, sr8, par);
1961 m &= 0x7f;
1962 n1 = n & 0x1f;
1963 n2 = (n >> 5) & 0x03;
1964 par->MCLK = ((1431818 * (m+2)) / (n1+2) / (1 << n2) + 50) / 100;
1965 printk(KERN_INFO "savagefb: Detected current MCLK value of %d kHz\n",
1966 par->MCLK);
1967
1968 /* check for DVI/flat panel */
1969 dvi = 0;
1970
1971 if (par->chip == S3_SAVAGE4) {
1972 unsigned char sr30 = 0x00;
1973
1974 vga_out8(0x3c4, 0x30, par);
1975 /* clear bit 1 */
1976 vga_out8(0x3c5, vga_in8(0x3c5, par) & ~0x02, par);
1977 sr30 = vga_in8(0x3c5, par);
1978 if (sr30 & 0x02 /*0x04 */) {
1979 dvi = 1;
1980 printk("savagefb: Digital Flat Panel Detected\n");
1981 }
1982 }
1983
1984 if (S3_SAVAGE_MOBILE_SERIES(par->chip) && !par->crtonly)
1985 par->display_type = DISP_LCD;
1986 else if (dvi || (par->chip == S3_SAVAGE4 && par->dvi))
1987 par->display_type = DISP_DFP;
1988 else
1989 par->display_type = DISP_CRT;
1990
1991 /* Check LCD panel parrmation */
1992
1993 if (par->display_type == DISP_LCD) {
1994 unsigned char cr6b = VGArCR(0x6b, par);
1995
1996 int panelX = (VGArSEQ(0x61, par) +
1997 ((VGArSEQ(0x66, par) & 0x02) << 7) + 1) * 8;
1998 int panelY = (VGArSEQ(0x69, par) +
1999 ((VGArSEQ(0x6e, par) & 0x70) << 4) + 1);
2000
2001 char * sTechnology = "Unknown";
2002
2003 /* OK, I admit it. I don't know how to limit the max dot clock
2004 * for LCD panels of various sizes. I thought I copied the
2005 * formula from the BIOS, but many users have parrmed me of
2006 * my folly.
2007 *
2008 * Instead, I'll abandon any attempt to automatically limit the
2009 * clock, and add an LCDClock option to XF86Config. Some day,
2010 * I should come back to this.
2011 */
2012
2013 enum ACTIVE_DISPLAYS { /* These are the bits in CR6B */
2014 ActiveCRT = 0x01,
2015 ActiveLCD = 0x02,
2016 ActiveTV = 0x04,
2017 ActiveCRT2 = 0x20,
2018 ActiveDUO = 0x80
2019 };
2020
2021 if ((VGArSEQ(0x39, par) & 0x03) == 0) {
2022 sTechnology = "TFT";
2023 } else if ((VGArSEQ(0x30, par) & 0x01) == 0) {
2024 sTechnology = "DSTN";
2025 } else {
2026 sTechnology = "STN";
2027 }
2028
2029 printk(KERN_INFO "savagefb: %dx%d %s LCD panel detected %s\n",
2030 panelX, panelY, sTechnology,
2031 cr6b & ActiveLCD ? "and active" : "but not active");
2032
2033 if (cr6b & ActiveLCD) {
2034 /*
2035 * If the LCD is active and panel expansion is enabled,
2036 * we probably want to kill the HW cursor.
2037 */
2038
2039 printk(KERN_INFO "savagefb: Limiting video mode to "
2040 "%dx%d\n", panelX, panelY);
2041
2042 par->SavagePanelWidth = panelX;
2043 par->SavagePanelHeight = panelY;
2044
2045 } else
2046 par->display_type = DISP_CRT;
2047 }
2048
2049 savage_get_default_par(par, &par->state);
2050 par->save = par->state;
2051
2052 if (S3_SAVAGE4_SERIES(par->chip)) {
2053 /*
2054 * The Savage4 and ProSavage have COB coherency bugs which
2055 * render the buffer useless. We disable it.
2056 */
2057 par->cob_index = 2;
2058 par->cob_size = 0x8000 << par->cob_index;
2059 par->cob_offset = videoRambytes;
2060 } else {
2061 /* We use 128kB for the COB on all chips. */
2062
2063 par->cob_index = 7;
2064 par->cob_size = 0x400 << par->cob_index;
2065 par->cob_offset = videoRambytes - par->cob_size;
2066 }
2067
2068 return videoRambytes;
2069 }
2070
2071 static int __devinit savage_init_fb_info(struct fb_info *info,
2072 struct pci_dev *dev,
2073 const struct pci_device_id *id)
2074 {
2075 struct savagefb_par *par = info->par;
2076 int err = 0;
2077
2078 par->pcidev = dev;
2079
2080 info->fix.type = FB_TYPE_PACKED_PIXELS;
2081 info->fix.type_aux = 0;
2082 info->fix.ypanstep = 1;
2083 info->fix.ywrapstep = 0;
2084 info->fix.accel = id->driver_data;
2085
2086 switch (info->fix.accel) {
2087 case FB_ACCEL_SUPERSAVAGE:
2088 par->chip = S3_SUPERSAVAGE;
2089 snprintf(info->fix.id, 16, "SuperSavage");
2090 break;
2091 case FB_ACCEL_SAVAGE4:
2092 par->chip = S3_SAVAGE4;
2093 snprintf(info->fix.id, 16, "Savage4");
2094 break;
2095 case FB_ACCEL_SAVAGE3D:
2096 par->chip = S3_SAVAGE3D;
2097 snprintf(info->fix.id, 16, "Savage3D");
2098 break;
2099 case FB_ACCEL_SAVAGE3D_MV:
2100 par->chip = S3_SAVAGE3D;
2101 snprintf(info->fix.id, 16, "Savage3D-MV");
2102 break;
2103 case FB_ACCEL_SAVAGE2000:
2104 par->chip = S3_SAVAGE2000;
2105 snprintf(info->fix.id, 16, "Savage2000");
2106 break;
2107 case FB_ACCEL_SAVAGE_MX_MV:
2108 par->chip = S3_SAVAGE_MX;
2109 snprintf(info->fix.id, 16, "Savage/MX-MV");
2110 break;
2111 case FB_ACCEL_SAVAGE_MX:
2112 par->chip = S3_SAVAGE_MX;
2113 snprintf(info->fix.id, 16, "Savage/MX");
2114 break;
2115 case FB_ACCEL_SAVAGE_IX_MV:
2116 par->chip = S3_SAVAGE_MX;
2117 snprintf(info->fix.id, 16, "Savage/IX-MV");
2118 break;
2119 case FB_ACCEL_SAVAGE_IX:
2120 par->chip = S3_SAVAGE_MX;
2121 snprintf(info->fix.id, 16, "Savage/IX");
2122 break;
2123 case FB_ACCEL_PROSAVAGE_PM:
2124 par->chip = S3_PROSAVAGE;
2125 snprintf(info->fix.id, 16, "ProSavagePM");
2126 break;
2127 case FB_ACCEL_PROSAVAGE_KM:
2128 par->chip = S3_PROSAVAGE;
2129 snprintf(info->fix.id, 16, "ProSavageKM");
2130 break;
2131 case FB_ACCEL_S3TWISTER_P:
2132 par->chip = S3_PROSAVAGE;
2133 snprintf(info->fix.id, 16, "TwisterP");
2134 break;
2135 case FB_ACCEL_S3TWISTER_K:
2136 par->chip = S3_PROSAVAGE;
2137 snprintf(info->fix.id, 16, "TwisterK");
2138 break;
2139 case FB_ACCEL_PROSAVAGE_DDR:
2140 par->chip = S3_PROSAVAGE;
2141 snprintf(info->fix.id, 16, "ProSavageDDR");
2142 break;
2143 case FB_ACCEL_PROSAVAGE_DDRK:
2144 par->chip = S3_PROSAVAGE;
2145 snprintf(info->fix.id, 16, "ProSavage8");
2146 break;
2147 }
2148
2149 if (S3_SAVAGE3D_SERIES(par->chip)) {
2150 par->SavageWaitIdle = savage3D_waitidle;
2151 par->SavageWaitFifo = savage3D_waitfifo;
2152 } else if (S3_SAVAGE4_SERIES(par->chip) ||
2153 S3_SUPERSAVAGE == par->chip) {
2154 par->SavageWaitIdle = savage4_waitidle;
2155 par->SavageWaitFifo = savage4_waitfifo;
2156 } else {
2157 par->SavageWaitIdle = savage2000_waitidle;
2158 par->SavageWaitFifo = savage2000_waitfifo;
2159 }
2160
2161 info->var.nonstd = 0;
2162 info->var.activate = FB_ACTIVATE_NOW;
2163 info->var.width = -1;
2164 info->var.height = -1;
2165 info->var.accel_flags = 0;
2166
2167 info->fbops = &savagefb_ops;
2168 info->flags = FBINFO_DEFAULT |
2169 FBINFO_HWACCEL_YPAN |
2170 FBINFO_HWACCEL_XPAN;
2171
2172 info->pseudo_palette = par->pseudo_palette;
2173
2174 #if defined(CONFIG_FB_SAVAGE_ACCEL)
2175 /* FIFO size + padding for commands */
2176 info->pixmap.addr = kcalloc(8, 1024, GFP_KERNEL);
2177
2178 err = -ENOMEM;
2179 if (info->pixmap.addr) {
2180 info->pixmap.size = 8*1024;
2181 info->pixmap.scan_align = 4;
2182 info->pixmap.buf_align = 4;
2183 info->pixmap.access_align = 32;
2184
2185 err = fb_alloc_cmap(&info->cmap, NR_PALETTE, 0);
2186 if (!err)
2187 info->flags |= FBINFO_HWACCEL_COPYAREA |
2188 FBINFO_HWACCEL_FILLRECT |
2189 FBINFO_HWACCEL_IMAGEBLIT;
2190 }
2191 #endif
2192 return err;
2193 }
2194
2195 /* --------------------------------------------------------------------- */
2196
2197 static int __devinit savagefb_probe(struct pci_dev* dev,
2198 const struct pci_device_id* id)
2199 {
2200 struct fb_info *info;
2201 struct savagefb_par *par;
2202 u_int h_sync, v_sync;
2203 int err, lpitch;
2204 int video_len;
2205
2206 DBG("savagefb_probe");
2207
2208 info = framebuffer_alloc(sizeof(struct savagefb_par), &dev->dev);
2209 if (!info)
2210 return -ENOMEM;
2211 par = info->par;
2212 mutex_init(&par->open_lock);
2213 err = pci_enable_device(dev);
2214 if (err)
2215 goto failed_enable;
2216
2217 if ((err = pci_request_regions(dev, "savagefb"))) {
2218 printk(KERN_ERR "cannot request PCI regions\n");
2219 goto failed_enable;
2220 }
2221
2222 err = -ENOMEM;
2223
2224 if ((err = savage_init_fb_info(info, dev, id)))
2225 goto failed_init;
2226
2227 err = savage_map_mmio(info);
2228 if (err)
2229 goto failed_mmio;
2230
2231 video_len = savage_init_hw(par);
2232 /* FIXME: cant be negative */
2233 if (video_len < 0) {
2234 err = video_len;
2235 goto failed_mmio;
2236 }
2237
2238 err = savage_map_video(info, video_len);
2239 if (err)
2240 goto failed_video;
2241
2242 INIT_LIST_HEAD(&info->modelist);
2243 #if defined(CONFIG_FB_SAVAGE_I2C)
2244 savagefb_create_i2c_busses(info);
2245 savagefb_probe_i2c_connector(info, &par->edid);
2246 fb_edid_to_monspecs(par->edid, &info->monspecs);
2247 kfree(par->edid);
2248 fb_videomode_to_modelist(info->monspecs.modedb,
2249 info->monspecs.modedb_len,
2250 &info->modelist);
2251 #endif
2252 info->var = savagefb_var800x600x8;
2253
2254 if (mode_option) {
2255 fb_find_mode(&info->var, info, mode_option,
2256 info->monspecs.modedb, info->monspecs.modedb_len,
2257 NULL, 8);
2258 } else if (info->monspecs.modedb != NULL) {
2259 const struct fb_videomode *mode;
2260
2261 mode = fb_find_best_display(&info->monspecs, &info->modelist);
2262 savage_update_var(&info->var, mode);
2263 }
2264
2265 /* maximize virtual vertical length */
2266 lpitch = info->var.xres_virtual*((info->var.bits_per_pixel + 7) >> 3);
2267 info->var.yres_virtual = info->fix.smem_len/lpitch;
2268
2269 if (info->var.yres_virtual < info->var.yres)
2270 goto failed;
2271
2272 #if defined(CONFIG_FB_SAVAGE_ACCEL)
2273 /*
2274 * The clipping coordinates are masked with 0xFFF, so limit our
2275 * virtual resolutions to these sizes.
2276 */
2277 if (info->var.yres_virtual > 0x1000)
2278 info->var.yres_virtual = 0x1000;
2279
2280 if (info->var.xres_virtual > 0x1000)
2281 info->var.xres_virtual = 0x1000;
2282 #endif
2283 savagefb_check_var(&info->var, info);
2284 savagefb_set_fix(info);
2285
2286 /*
2287 * Calculate the hsync and vsync frequencies. Note that
2288 * we split the 1e12 constant up so that we can preserve
2289 * the precision and fit the results into 32-bit registers.
2290 * (1953125000 * 512 = 1e12)
2291 */
2292 h_sync = 1953125000 / info->var.pixclock;
2293 h_sync = h_sync * 512 / (info->var.xres + info->var.left_margin +
2294 info->var.right_margin +
2295 info->var.hsync_len);
2296 v_sync = h_sync / (info->var.yres + info->var.upper_margin +
2297 info->var.lower_margin + info->var.vsync_len);
2298
2299 printk(KERN_INFO "savagefb v" SAVAGEFB_VERSION ": "
2300 "%dkB VRAM, using %dx%d, %d.%03dkHz, %dHz\n",
2301 info->fix.smem_len >> 10,
2302 info->var.xres, info->var.yres,
2303 h_sync / 1000, h_sync % 1000, v_sync);
2304
2305
2306 fb_destroy_modedb(info->monspecs.modedb);
2307 info->monspecs.modedb = NULL;
2308
2309 err = register_framebuffer(info);
2310 if (err < 0)
2311 goto failed;
2312
2313 printk(KERN_INFO "fb: S3 %s frame buffer device\n",
2314 info->fix.id);
2315
2316 /*
2317 * Our driver data
2318 */
2319 pci_set_drvdata(dev, info);
2320
2321 return 0;
2322
2323 failed:
2324 #ifdef CONFIG_FB_SAVAGE_I2C
2325 savagefb_delete_i2c_busses(info);
2326 #endif
2327 fb_alloc_cmap(&info->cmap, 0, 0);
2328 savage_unmap_video(info);
2329 failed_video:
2330 savage_unmap_mmio(info);
2331 failed_mmio:
2332 kfree(info->pixmap.addr);
2333 failed_init:
2334 pci_release_regions(dev);
2335 failed_enable:
2336 framebuffer_release(info);
2337
2338 return err;
2339 }
2340
2341 static void __devexit savagefb_remove(struct pci_dev *dev)
2342 {
2343 struct fb_info *info = pci_get_drvdata(dev);
2344
2345 DBG("savagefb_remove");
2346
2347 if (info) {
2348 /*
2349 * If unregister_framebuffer fails, then
2350 * we will be leaving hooks that could cause
2351 * oopsen laying around.
2352 */
2353 if (unregister_framebuffer(info))
2354 printk(KERN_WARNING "savagefb: danger danger! "
2355 "Oopsen imminent!\n");
2356
2357 #ifdef CONFIG_FB_SAVAGE_I2C
2358 savagefb_delete_i2c_busses(info);
2359 #endif
2360 fb_alloc_cmap(&info->cmap, 0, 0);
2361 savage_unmap_video(info);
2362 savage_unmap_mmio(info);
2363 kfree(info->pixmap.addr);
2364 pci_release_regions(dev);
2365 framebuffer_release(info);
2366
2367 /*
2368 * Ensure that the driver data is no longer
2369 * valid.
2370 */
2371 pci_set_drvdata(dev, NULL);
2372 }
2373 }
2374
2375 static int savagefb_suspend(struct pci_dev *dev, pm_message_t mesg)
2376 {
2377 struct fb_info *info = pci_get_drvdata(dev);
2378 struct savagefb_par *par = info->par;
2379
2380 DBG("savagefb_suspend");
2381
2382 if (mesg.event == PM_EVENT_PRETHAW)
2383 mesg.event = PM_EVENT_FREEZE;
2384 par->pm_state = mesg.event;
2385 dev->dev.power.power_state = mesg;
2386
2387 /*
2388 * For PM_EVENT_FREEZE, do not power down so the console
2389 * can remain active.
2390 */
2391 if (mesg.event == PM_EVENT_FREEZE)
2392 return 0;
2393
2394 acquire_console_sem();
2395 fb_set_suspend(info, 1);
2396
2397 if (info->fbops->fb_sync)
2398 info->fbops->fb_sync(info);
2399
2400 savagefb_blank(FB_BLANK_POWERDOWN, info);
2401 savage_set_default_par(par, &par->save);
2402 savage_disable_mmio(par);
2403 pci_save_state(dev);
2404 pci_disable_device(dev);
2405 pci_set_power_state(dev, pci_choose_state(dev, mesg));
2406 release_console_sem();
2407
2408 return 0;
2409 }
2410
2411 static int savagefb_resume(struct pci_dev* dev)
2412 {
2413 struct fb_info *info = pci_get_drvdata(dev);
2414 struct savagefb_par *par = info->par;
2415 int cur_state = par->pm_state;
2416
2417 DBG("savage_resume");
2418
2419 par->pm_state = PM_EVENT_ON;
2420
2421 /*
2422 * The adapter was not powered down coming back from a
2423 * PM_EVENT_FREEZE.
2424 */
2425 if (cur_state == PM_EVENT_FREEZE) {
2426 pci_set_power_state(dev, PCI_D0);
2427 return 0;
2428 }
2429
2430 acquire_console_sem();
2431
2432 pci_set_power_state(dev, PCI_D0);
2433 pci_restore_state(dev);
2434
2435 if (pci_enable_device(dev))
2436 DBG("err");
2437
2438 pci_set_master(dev);
2439 savage_enable_mmio(par);
2440 savage_init_hw(par);
2441 savagefb_set_par(info);
2442 fb_set_suspend(info, 0);
2443 savagefb_blank(FB_BLANK_UNBLANK, info);
2444 release_console_sem();
2445
2446 return 0;
2447 }
2448
2449
2450 static struct pci_device_id savagefb_devices[] __devinitdata = {
2451 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX128,
2452 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2453
2454 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX64,
2455 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2456
2457 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX64C,
2458 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2459
2460 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX128SDR,
2461 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2462
2463 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX128DDR,
2464 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2465
2466 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX64SDR,
2467 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2468
2469 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX64DDR,
2470 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2471
2472 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IXCSDR,
2473 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2474
2475 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IXCDDR,
2476 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2477
2478 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE4,
2479 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE4},
2480
2481 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE3D,
2482 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE3D},
2483
2484 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE3D_MV,
2485 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE3D_MV},
2486
2487 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE2000,
2488 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE2000},
2489
2490 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_MX_MV,
2491 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_MX_MV},
2492
2493 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_MX,
2494 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_MX},
2495
2496 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_IX_MV,
2497 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_IX_MV},
2498
2499 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_IX,
2500 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_IX},
2501
2502 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_PM,
2503 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_PM},
2504
2505 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_KM,
2506 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_KM},
2507
2508 {PCI_VENDOR_ID_S3, PCI_CHIP_S3TWISTER_P,
2509 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_S3TWISTER_P},
2510
2511 {PCI_VENDOR_ID_S3, PCI_CHIP_S3TWISTER_K,
2512 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_S3TWISTER_K},
2513
2514 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_DDR,
2515 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_DDR},
2516
2517 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_DDRK,
2518 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_DDRK},
2519
2520 {0, 0, 0, 0, 0, 0, 0}
2521 };
2522
2523 MODULE_DEVICE_TABLE(pci, savagefb_devices);
2524
2525 static struct pci_driver savagefb_driver = {
2526 .name = "savagefb",
2527 .id_table = savagefb_devices,
2528 .probe = savagefb_probe,
2529 .suspend = savagefb_suspend,
2530 .resume = savagefb_resume,
2531 .remove = __devexit_p(savagefb_remove)
2532 };
2533
2534 /* **************************** exit-time only **************************** */
2535
2536 static void __exit savage_done(void)
2537 {
2538 DBG("savage_done");
2539 pci_unregister_driver(&savagefb_driver);
2540 }
2541
2542
2543 /* ************************* init in-kernel code ************************** */
2544
2545 static int __init savagefb_setup(char *options)
2546 {
2547 #ifndef MODULE
2548 char *this_opt;
2549
2550 if (!options || !*options)
2551 return 0;
2552
2553 while ((this_opt = strsep(&options, ",")) != NULL) {
2554 mode_option = this_opt;
2555 }
2556 #endif /* !MODULE */
2557 return 0;
2558 }
2559
2560 static int __init savagefb_init(void)
2561 {
2562 char *option;
2563
2564 DBG("savagefb_init");
2565
2566 if (fb_get_options("savagefb", &option))
2567 return -ENODEV;
2568
2569 savagefb_setup(option);
2570 return pci_register_driver(&savagefb_driver);
2571
2572 }
2573
2574 module_init(savagefb_init);
2575 module_exit(savage_done);
2576
2577 module_param(mode_option, charp, 0);
2578 MODULE_PARM_DESC(mode_option, "Specify initial video mode");
Support for the Chinese Samsung S3C2440 based development boards