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Merge commit 'gcl/next' into next
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / video / savage / savagefb_driver.c
CommitLineData
1da177e4
LT		 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
1da177e4
LT		 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>
1da177e4
LT		 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>
1da177e4
LT		 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
3e42f0b1 73static char *mode_option __devinitdata = NULL;
1da177e4
LT		 74
75#ifdef MODULE
76
77MODULE_AUTHOR("(c) 2001-2002 Denis Oliver Kropp <dok@directfb.org>");
78MODULE_LICENSE("GPL");
79MODULE_DESCRIPTION("FBDev driver for S3 Savage PCI/AGP Chips");
80
81#endif
82
83
84/* --------------------------------------------------------------------- */
85
026fbe16 86static void vgaHWSeqReset(struct savagefb_par *par, int start)
1da177e4
LT		 87{
88 if (start)
026fbe16 89 VGAwSEQ(0x00, 0x01, par); /* Synchronous Reset */
1da177e4 90 else
026fbe16 91 VGAwSEQ(0x00, 0x03, par); /* End Reset */
1da177e4
LT		 92}
93
026fbe16 94static void vgaHWProtect(struct savagefb_par *par, int on)
1da177e4
LT		 95{
96 unsigned char tmp;
97
98 if (on) {
99 /*
100 * Turn off screen and disable sequencer.
101 */
026fbe16 102 tmp = VGArSEQ(0x01, par);
1da177e4 103
026fbe16
AD		 104 vgaHWSeqReset(par, 1); /* start synchronous reset */
105 VGAwSEQ(0x01, tmp | 0x20, par);/* disable the display */
1da177e4 106
1cc650c6 107 VGAenablePalette(par);
1da177e4
LT		 108 } else {
109 /*
110 * Reenable sequencer, then turn on screen.
111 */
112
026fbe16 113 tmp = VGArSEQ(0x01, par);
1da177e4 114
026fbe16
AD		 115 VGAwSEQ(0x01, tmp & ~0x20, par);/* reenable display */
116 vgaHWSeqReset(par, 0); /* clear synchronous reset */
1da177e4 117
1cc650c6 118 VGAdisablePalette(par);
1da177e4
LT		 119 }
120}
121
026fbe16 122static void vgaHWRestore(struct savagefb_par *par, struct savage_reg *reg)
1da177e4
LT		 123{
124 int i;
125
026fbe16 126 VGAwMISC(reg->MiscOutReg, par);
1da177e4
LT		 127
128 for (i = 1; i < 5; i++)
026fbe16 129 VGAwSEQ(i, reg->Sequencer[i], par);
1da177e4
LT		 130
131 /* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 or
132 CRTC[17] */
026fbe16 133 VGAwCR(17, reg->CRTC[17] & ~0x80, par);
1da177e4
LT		 134
135 for (i = 0; i < 25; i++)
026fbe16 136 VGAwCR(i, reg->CRTC[i], par);
1da177e4
LT		 137
138 for (i = 0; i < 9; i++)
026fbe16 139 VGAwGR(i, reg->Graphics[i], par);
1da177e4 140
1cc650c6 141 VGAenablePalette(par);
1da177e4
LT		 142
143 for (i = 0; i < 21; i++)
026fbe16 144 VGAwATTR(i, reg->Attribute[i], par);
1da177e4 145
1cc650c6 146 VGAdisablePalette(par);
1da177e4
LT		 147}
148
026fbe16
AD		 149static void vgaHWInit(struct fb_var_screeninfo *var,
150 struct savagefb_par *par,
151 struct xtimings *timings,
152 struct savage_reg *reg)
1da177e4 153{
2356614b 154 reg->MiscOutReg = 0x23;
1da177e4
LT		 155
156 if (!(timings->sync & FB_SYNC_HOR_HIGH_ACT))
2356614b 157 reg->MiscOutReg |= 0x40;
1da177e4
LT		 158
159 if (!(timings->sync & FB_SYNC_VERT_HIGH_ACT))
2356614b 160 reg->MiscOutReg |= 0x80;
1da177e4
LT		 161
162 /*
163 * Time Sequencer
164 */
2356614b
AD		 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 */
1da177e4
LT		 170
171 /*
172 * CRTC Controller
173 */
2356614b
AD		 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) |
1da177e4 180 (((timings->HSyncEnd >> 3)) & 0x1f);
2356614b
AD		 181 reg->CRTC[0x06] = (timings->VTotal - 2) & 0xFF;
182 reg->CRTC[0x07] = (((timings->VTotal - 2) & 0x100) >> 8) |
1da177e4
LT		 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);
2356614b
AD		 190 reg->CRTC[0x08] = 0x00;
191 reg->CRTC[0x09] = (((timings->VSyncStart - 1) & 0x200) >> 4) | 0x40;
1da177e4
LT		 192
193 if (timings->dblscan)
2356614b
AD		 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;
1da177e4
LT		 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 */
2356614b
AD		 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;
1da177e4
LT		 253}
254
255/* -------------------- Hardware specific routines ------------------------- */
256
257/*
258 * Hardware Acceleration for SavageFB
259 */
260
261/* Wait for fifo space */
262static void
263savage3D_waitfifo(struct savagefb_par *par, int space)
264{
265 int slots = MAXFIFO - space;
266
1cc650c6 267 while ((savage_in32(0x48C00, par) & 0x0000ffff) > slots);
1da177e4
LT		 268}
269
270static void
271savage4_waitfifo(struct savagefb_par *par, int space)
272{
273 int slots = MAXFIFO - space;
274
1cc650c6 275 while ((savage_in32(0x48C60, par) & 0x001fffff) > slots);
1da177e4
LT		 276}
277
278static void
279savage2000_waitfifo(struct savagefb_par *par, int space)
280{
281 int slots = MAXFIFO - space;
282
1cc650c6 283 while ((savage_in32(0x48C60, par) & 0x0000ffff) > slots);
1da177e4
LT		 284}
285
286/* Wait for idle accelerator */
287static void
288savage3D_waitidle(struct savagefb_par *par)
289{
1cc650c6 290 while ((savage_in32(0x48C00, par) & 0x0008ffff) != 0x80000);
1da177e4
LT		 291}
292
293static void
294savage4_waitidle(struct savagefb_par *par)
295{
1cc650c6 296 while ((savage_in32(0x48C60, par) & 0x00a00000) != 0x00a00000);
1da177e4
LT		 297}
298
299static void
300savage2000_waitidle(struct savagefb_par *par)
301{
1cc650c6 302 while ((savage_in32(0x48C60, par) & 0x009fffff));
1da177e4
LT		 303}
304
f8020dc5 305#ifdef CONFIG_FB_SAVAGE_ACCEL
1da177e4 306static void
026fbe16 307SavageSetup2DEngine(struct savagefb_par *par)
1da177e4
LT		 308{
309 unsigned long GlobalBitmapDescriptor;
310
311 GlobalBitmapDescriptor = 1 | 8 | BCI_BD_BW_DISABLE;
026fbe16
AD		 312 BCI_BD_SET_BPP(GlobalBitmapDescriptor, par->depth);
313 BCI_BD_SET_STRIDE(GlobalBitmapDescriptor, par->vwidth);
1da177e4
LT		 314
315 switch(par->chip) {
316 case S3_SAVAGE3D:
317 case S3_SAVAGE_MX:
318 /* Disable BCI */
1cc650c6 319 savage_out32(0x48C18, savage_in32(0x48C18, par) & 0x3FF0, par);
1da177e4 320 /* Setup BCI command overflow buffer */
1cc650c6
AD		 321 savage_out32(0x48C14,
322 (par->cob_offset >> 11) | (par->cob_index << 29),
323 par);
1da177e4 324 /* Program shadow status update. */
1cc650c6
AD		 325 savage_out32(0x48C10, 0x78207220, par);
326 savage_out32(0x48C0C, 0, par);
1da177e4 327 /* Enable BCI and command overflow buffer */
1cc650c6 328 savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x0C, par);
1da177e4
LT		 329 break;
330 case S3_SAVAGE4:
331 case S3_PROSAVAGE:
332 case S3_SUPERSAVAGE:
333 /* Disable BCI */
1cc650c6 334 savage_out32(0x48C18, savage_in32(0x48C18, par) & 0x3FF0, par);
1da177e4 335 /* Program shadow status update */
1cc650c6
AD		 336 savage_out32(0x48C10, 0x00700040, par);
337 savage_out32(0x48C0C, 0, par);
1da177e4 338 /* Enable BCI without the COB */
1cc650c6 339 savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x08, par);
1da177e4
LT		 340 break;
341 case S3_SAVAGE2000:
342 /* Disable BCI */
1cc650c6 343 savage_out32(0x48C18, 0, par);
1da177e4 344 /* Setup BCI command overflow buffer */
1cc650c6
AD		 345 savage_out32(0x48C18,
346 (par->cob_offset >> 7) | (par->cob_index),
347 par);
1da177e4 348 /* Disable shadow status update */
1cc650c6 349 savage_out32(0x48A30, 0, par);
1da177e4 350 /* Enable BCI and command overflow buffer */
1cc650c6
AD		 351 savage_out32(0x48C18, savage_in32(0x48C18, par) | 0x00280000,
352 par);
1da177e4
LT		 353 break;
354 default:
355 break;
356 }
357 /* Turn on 16-bit register access. */
1cc650c6
AD		 358 vga_out8(0x3d4, 0x31, par);
359 vga_out8(0x3d5, 0x0c, par);
1da177e4
LT		 360
361 /* Set stride to use GBD. */
026fbe16
AD		 362 vga_out8(0x3d4, 0x50, par);
363 vga_out8(0x3d5, vga_in8(0x3d5, par) | 0xC1, par);
1da177e4
LT		 364
365 /* Enable 2D engine. */
026fbe16
AD		 366 vga_out8(0x3d4, 0x40, par);
367 vga_out8(0x3d5, 0x01, par);
1da177e4 368
026fbe16
AD		 369 savage_out32(MONO_PAT_0, ~0, par);
370 savage_out32(MONO_PAT_1, ~0, par);
1da177e4
LT		 371
372 /* Setup plane masks */
026fbe16
AD		 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);
1da177e4
LT		 377
378 /* Now set the GBD */
379 par->bci_ptr = 0;
026fbe16 380 par->SavageWaitFifo(par, 4);
1da177e4 381
026fbe16
AD		 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);
5b600464
AD		 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);
1da177e4
LT		 399}
400
f8020dc5
AD		 401static 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
026fbe16 414static void SavageSetup2DEngine(struct savagefb_par *par) {}
f8020dc5
AD		 415
416#endif
1da177e4
LT		 417
418static 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)) {
026fbe16 428 printk(KERN_ERR "invalid frequency %ld Khz\n", freq);
1da177e4
LT		 429 freq = freq_min / (1 << max_n2);
430 }
431 if (freq > freq_max / (1 << min_n2)) {
026fbe16 432 printk(KERN_ERR "invalid frequency %ld Khz\n", freq);
1da177e4
LT		 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
465static 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;
026fbe16
AD		 483 if ((m * BASE_FREQ >= freq_min * n1) &&
484 (m * BASE_FREQ <= freq_max * n1)) {
1da177e4 485 diff = freq * (1 << n2) * n1 - BASE_FREQ * m;
026fbe16 486 if (diff < 0)
1da177e4 487 diff = -diff;
026fbe16 488 if (diff < best_diff) {
1da177e4
LT		 489 best_diff = diff;
490 best_m = m;
491 best_n1 = n1;
492 best_n2 = n2;
493 }
494 }
495 }
496 }
497
026fbe16 498 if (max_n1 == 63)
1da177e4
LT		 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
d8ad7e0b 511static void SavagePrintRegs(struct savagefb_par *par)
1da177e4
LT		 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 "
026fbe16 518 "xF");
1da177e4 519
026fbe16
AD		 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));
1da177e4
LT		 525 }
526
527 printk(KERN_DEBUG "\n\nCR x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC "
026fbe16 528 "xD xE xF");
1da177e4 529
026fbe16
AD		 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));
1da177e4
LT		 535 }
536
537 printk(KERN_DEBUG "\n\n");
538}
539#endif
540
541/* --------------------------------------------------------------------- */
542
2356614b 543static void savage_get_default_par(struct savagefb_par *par, struct savage_reg *reg)
1da177e4
LT		 544{
545 unsigned char cr3a, cr53, cr66;
546
026fbe16
AD		 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);
1da177e4
LT		 570
571 /* unlock extended seq regs */
026fbe16
AD		 572 vga_out8(0x3c4, 0x08, par);
573 reg->SR08 = vga_in8(0x3c5, par);
574 vga_out8(0x3c5, 0x06, par);
1da177e4
LT		 575
576 /* now save all the extended regs we need */
026fbe16
AD		 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;
1da177e4
LT		 626
627 /* extended mode timing regs */
026fbe16
AD		 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);
1da177e4
LT		 640
641 /* save seq extended regs for DCLK PLL programming */
026fbe16
AD		 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);
1da177e4
LT		 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++) {
026fbe16
AD		 669 vga_out8(0x3c4, 0x54+i, par);
670 reg->SR54[i] = vga_in8(0x3c5, par);
1da177e4
LT		 671 }
672 }
673
026fbe16
AD		 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);
1da177e4
LT		 680
681 /* now save MIU regs */
682 if (par->chip != S3_SAVAGE_MX) {
2356614b
AD		 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);
1da177e4
LT		 687 }
688
026fbe16
AD		 689 vga_out8(0x3d4, 0x3a, par);
690 vga_out8(0x3d5, cr3a, par);
691 vga_out8(0x3d4, 0x66, par);
692 vga_out8(0x3d5, cr66, par);
1da177e4
LT		 693}
694
f8020dc5
AD		 695static 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
9791d763
GU		 848static void savage_update_var(struct fb_var_screeninfo *var,
849 const struct fb_videomode *modedb)
1da177e4
LT		 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
026fbe16
AD		 867static int savagefb_check_var(struct fb_var_screeninfo *var,
868 struct fb_info *info)
1da177e4 869{
b8901b09 870 struct savagefb_par *par = info->par;
1da177e4
LT		 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) {
9791d763 918 const struct fb_videomode *mode;
1da177e4
LT		 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)) {
026fbe16
AD		 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);
1da177e4
LT		 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
026fbe16
AD		 972static int savagefb_decode_var(struct fb_var_screeninfo *var,
973 struct savagefb_par *par,
974 struct savage_reg *reg)
1da177e4
LT		 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
026fbe16 984 memset(&timings, 0, sizeof(timings));
1da177e4
LT		 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 */
026fbe16 1016 vgaHWInit(var, par, &timings, reg);
1da177e4
LT		 1017
1018 /* We need to set CR67 whether or not we use the BIOS. */
1019
1020 dclk = timings.Clock;
2356614b 1021 reg->CR67 = 0x00;
1da177e4 1022
026fbe16 1023 switch(var->bits_per_pixel) {
1da177e4 1024 case 8:
026fbe16 1025 if ((par->chip == S3_SAVAGE2000) && (dclk >= 230000))
2356614b 1026 reg->CR67 = 0x10; /* 8bpp, 2 pixels/clock */
1da177e4 1027 else
2356614b 1028 reg->CR67 = 0x00; /* 8bpp, 1 pixel/clock */
1da177e4
LT		 1029 break;
1030 case 15:
026fbe16
AD		 1031 if (S3_SAVAGE_MOBILE_SERIES(par->chip) ||
1032 ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)))
2356614b 1033 reg->CR67 = 0x30; /* 15bpp, 2 pixel/clock */
1da177e4 1034 else
2356614b 1035 reg->CR67 = 0x20; /* 15bpp, 1 pixels/clock */
1da177e4
LT		 1036 break;
1037 case 16:
026fbe16
AD		 1038 if (S3_SAVAGE_MOBILE_SERIES(par->chip) ||
1039 ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)))
2356614b 1040 reg->CR67 = 0x50; /* 16bpp, 2 pixel/clock */
1da177e4 1041 else
2356614b 1042 reg->CR67 = 0x40; /* 16bpp, 1 pixels/clock */
1da177e4
LT		 1043 break;
1044 case 24:
2356614b 1045 reg->CR67 = 0x70;
1da177e4
LT		 1046 break;
1047 case 32:
2356614b 1048 reg->CR67 = 0xd0;
1da177e4
LT		 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
026fbe16
AD		 1057 vga_out8(0x3d4, 0x3a, par);
1058 tmp = vga_in8(0x3d5, par);
1da177e4 1059 if (1 /*FIXME:psav->pci_burst*/)
2356614b 1060 reg->CR3A = (tmp & 0x7f) | 0x15;
1da177e4 1061 else
2356614b 1062 reg->CR3A = tmp | 0x95;
1da177e4 1063
2356614b
AD		 1064 reg->CR53 = 0x00;
1065 reg->CR31 = 0x8c;
1066 reg->CR66 = 0x89;
1da177e4 1067
026fbe16
AD		 1068 vga_out8(0x3d4, 0x58, par);
1069 reg->CR58 = vga_in8(0x3d5, par) & 0x80;
2356614b 1070 reg->CR58 |= 0x13;
1da177e4 1071
2356614b
AD		 1072 reg->SR15 = 0x03 | 0x80;
1073 reg->SR18 = 0x00;
1074 reg->CR43 = reg->CR45 = reg->CR65 = 0x00;
1da177e4 1075
026fbe16
AD		 1076 vga_out8(0x3d4, 0x40, par);
1077 reg->CR40 = vga_in8(0x3d5, par) & ~0x01;
1da177e4 1078
2356614b
AD		 1079 reg->MMPR0 = 0x010400;
1080 reg->MMPR1 = 0x00;
1081 reg->MMPR2 = 0x0808;
1082 reg->MMPR3 = 0x08080810;
1da177e4 1083
026fbe16 1084 SavageCalcClock(dclk, 1, 1, 127, 0, 4, 180000, 360000, &m, &n, &r);
1da177e4
LT		 1085 /* m = 107; n = 4; r = 2; */
1086
1087 if (par->MCLK <= 0) {
2356614b
AD		 1088 reg->SR10 = 255;
1089 reg->SR11 = 255;
1da177e4 1090 } else {
026fbe16 1091 common_calc_clock(par->MCLK, 1, 1, 31, 0, 3, 135000, 270000,
2356614b
AD		 1092 &reg->SR11, &reg->SR10);
1093 /* reg->SR10 = 80; // MCLK == 286000 */
1094 /* reg->SR11 = 125; */
1da177e4
LT		 1095 }
1096
2356614b
AD		 1097 reg->SR12 = (r << 6) | (n & 0x3f);
1098 reg->SR13 = m & 0xff;
1099 reg->SR29 = (r & 4) | (m & 0x100) >> 5 | (n & 0x40) >> 2;
1da177e4
LT		 1100
1101 if (var->bits_per_pixel < 24)
2356614b 1102 reg->MMPR0 -= 0x8000;
1da177e4 1103 else
2356614b 1104 reg->MMPR0 -= 0x4000;
1da177e4
LT		 1105
1106 if (timings.interlaced)
2356614b 1107 reg->CR42 = 0x20;
1da177e4 1108 else
2356614b 1109 reg->CR42 = 0x00;
1da177e4 1110
2356614b 1111 reg->CR34 = 0x10; /* display fifo */
1da177e4
LT		 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
2356614b
AD		 1123 j = (reg->CRTC[0] + ((i & 0x01) << 8) +
1124 reg->CRTC[4] + ((i & 0x10) << 4) + 1) / 2;
1da177e4 1125
2356614b
AD		 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;
1da177e4 1130 else
2356614b 1131 j = reg->CRTC[0] + ((i & 0x01) << 8) + 1;
1da177e4
LT		 1132 }
1133
2356614b 1134 reg->CR3B = j & 0xff;
1da177e4 1135 i |= (j & 0x100) >> 2;
2356614b
AD		 1136 reg->CR3C = (reg->CRTC[0] + ((i & 0x01) << 8)) / 2;
1137 reg->CR5D = i;
1138 reg->CR5E = (((timings.VTotal - 2) & 0x400) >> 10) |
1da177e4
LT		 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;
2356614b
AD		 1143 reg->CR91 = reg->CRTC[19] = 0xff & width;
1144 reg->CR51 = (0x300 & width) >> 4;
1145 reg->CR90 = 0x80 | (width >> 8);
1146 reg->MiscOutReg |= 0x0c;
1da177e4
LT		 1147
1148 /* Set frame buffer description. */
1149
1150 if (var->bits_per_pixel <= 8)
2356614b 1151 reg->CR50 = 0;
1da177e4 1152 else if (var->bits_per_pixel <= 16)
2356614b 1153 reg->CR50 = 0x10;
1da177e4 1154 else
2356614b 1155 reg->CR50 = 0x30;
1da177e4
LT		 1156
1157 if (var->xres_virtual <= 640)
2356614b 1158 reg->CR50 |= 0x40;
1da177e4 1159 else if (var->xres_virtual == 800)
2356614b 1160 reg->CR50 |= 0x80;
1da177e4 1161 else if (var->xres_virtual == 1024)
2356614b 1162 reg->CR50 |= 0x00;
1da177e4 1163 else if (var->xres_virtual == 1152)
2356614b 1164 reg->CR50 |= 0x01;
1da177e4 1165 else if (var->xres_virtual == 1280)
2356614b 1166 reg->CR50 |= 0xc0;
1da177e4 1167 else if (var->xres_virtual == 1600)
2356614b 1168 reg->CR50 |= 0x81;
1da177e4 1169 else
2356614b 1170 reg->CR50 |= 0xc1; /* Use GBD */
1da177e4 1171
026fbe16 1172 if (par->chip == S3_SAVAGE2000)
2356614b 1173 reg->CR33 = 0x08;
1da177e4 1174 else
2356614b 1175 reg->CR33 = 0x20;
1da177e4 1176
2356614b 1177 reg->CRTC[0x17] = 0xeb;
1da177e4 1178
2356614b 1179 reg->CR67 |= 1;
1da177e4 1180
1cc650c6 1181 vga_out8(0x3d4, 0x36, par);
026fbe16
AD		 1182 reg->CR36 = vga_in8(0x3d5, par);
1183 vga_out8(0x3d4, 0x68, par);
1184 reg->CR68 = vga_in8(0x3d5, par);
2356614b 1185 reg->CR69 = 0;
026fbe16
AD		 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;
1da177e4
LT		 1194
1195 return 0;
1196}
1197
1198/* --------------------------------------------------------------------- */
1199
1200/*
1201 * Set a single color register. Return != 0 for invalid regno.
1202 */
1203static int savagefb_setcolreg(unsigned regno,
1204 unsigned red,
1205 unsigned green,
1206 unsigned blue,
1207 unsigned transp,
1208 struct fb_info *info)
1209{
b8901b09 1210 struct savagefb_par *par = info->par;
1da177e4
LT		 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:
026fbe16 1222 vga_out8(0x3c8, regno, par);
1da177e4 1223
026fbe16
AD		 1224 vga_out8(0x3c9, red >> 10, par);
1225 vga_out8(0x3c9, green >> 10, par);
1226 vga_out8(0x3c9, blue >> 10, par);
1da177e4
LT		 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
026fbe16 1260static void savagefb_set_par_int(struct savagefb_par *par, struct savage_reg *reg)
1da177e4
LT		 1261{
1262 unsigned char tmp, cr3a, cr66, cr67;
1263
026fbe16 1264 DBG("savagefb_set_par_int");
1da177e4 1265
026fbe16 1266 par->SavageWaitIdle(par);
1da177e4 1267
026fbe16 1268 vga_out8(0x3c2, 0x23, par);
1da177e4 1269
026fbe16
AD		 1270 vga_out16(0x3d4, 0x4838, par);
1271 vga_out16(0x3d4, 0xa539, par);
1272 vga_out16(0x3c4, 0x0608, par);
1da177e4 1273
026fbe16 1274 vgaHWProtect(par, 1);
1da177e4
LT		 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
1cc650c6 1283 VerticalRetraceWait(par);
026fbe16
AD		 1284 vga_out8(0x3d4, 0x67, par);
1285 cr67 = vga_in8(0x3d5, par);
1286 vga_out8(0x3d5, cr67/*par->CR67*/ & ~0x0c, par); /* no STREAMS yet */
1da177e4 1287
026fbe16
AD		 1288 vga_out8(0x3d4, 0x23, par);
1289 vga_out8(0x3d5, 0x00, par);
1290 vga_out8(0x3d4, 0x26, par);
1291 vga_out8(0x3d5, 0x00, par);
1da177e4
LT		 1292
1293 /* restore extended regs */
026fbe16
AD		 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);
1da177e4
LT		 1308
1309 /* Restore DCLK registers. */
1310
026fbe16
AD		 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);
1da177e4
LT		 1319
1320 /* Restore flat panel expansion regsters. */
026fbe16 1321 if (par->chip == S3_SAVAGE_MX) {
1da177e4
LT		 1322 int i;
1323
026fbe16
AD		 1324 for (i = 0; i < 8; i++) {
1325 vga_out8(0x3c4, 0x54+i, par);
1326 vga_out8(0x3c5, reg->SR54[i], par);
1da177e4
LT		 1327 }
1328 }
1329
2356614b 1330 vgaHWRestore (par, reg);
1da177e4
LT		 1331
1332 /* extended mode timing registers */
026fbe16
AD		 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);
1da177e4
LT		 1347
1348 /* restore the desired video mode with cr67 */
026fbe16 1349 vga_out8(0x3d4, 0x67, par);
1da177e4 1350 /* following part not present in X11 driver */
026fbe16
AD		 1351 cr67 = vga_in8(0x3d5, par) & 0xf;
1352 vga_out8(0x3d5, 0x50 | cr67, par);
1353 udelay(10000);
1354 vga_out8(0x3d4, 0x67, par);
1da177e4 1355 /* end of part */
026fbe16 1356 vga_out8(0x3d5, reg->CR67 & ~0x0c, par);
1da177e4
LT		 1357
1358 /* other mode timing and extended regs */
026fbe16
AD		 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);
1da177e4
LT		 1371
1372 /* memory timings */
026fbe16
AD		 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);
1da177e4
LT		 1394
1395 if (par->chip == S3_SAVAGE4) {
026fbe16
AD		 1396 vga_out8(0x3d4, 0xb0, par);
1397 vga_out8(0x3d5, reg->CRB0, par);
1da177e4
LT		 1398 }
1399
026fbe16
AD		 1400 vga_out8(0x3d4, 0x32, par);
1401 vga_out8(0x3d5, reg->CR32, par);
1da177e4
LT		 1402
1403 /* unlock extended seq regs */
026fbe16
AD		 1404 vga_out8(0x3c4, 0x08, par);
1405 vga_out8(0x3c5, 0x06, par);
1da177e4
LT		 1406
1407 /* Restore extended sequencer regs for MCLK. SR10 == 255 indicates
1408 * that we should leave the default SR10 and SR11 values there.
1409 */
2356614b 1410 if (reg->SR10 != 255) {
026fbe16
AD		 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);
1da177e4
LT		 1415 }
1416
1417 /* restore extended seq regs for dclk */
026fbe16
AD		 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);
1da177e4
LT		 1430
1431 /* load new m, n pll values for dclk & mclk */
026fbe16
AD		 1432 vga_out8(0x3c4, 0x15, par);
1433 tmp = vga_in8(0x3c5, par) & ~0x21;
1da177e4 1434
026fbe16
AD		 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);
1da177e4 1440
026fbe16
AD		 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);
1da177e4
LT		 1445
1446 /* now write out cr67 in full, possibly starting STREAMS */
1cc650c6 1447 VerticalRetraceWait(par);
026fbe16
AD		 1448 vga_out8(0x3d4, 0x67, par);
1449 vga_out8(0x3d5, reg->CR67, par);
1da177e4 1450
026fbe16
AD		 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);
1da177e4
LT		 1457
1458 if (par->chip != S3_SAVAGE_MX) {
1cc650c6 1459 VerticalRetraceWait(par);
026fbe16
AD		 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);
1da177e4
LT		 1467 }
1468
026fbe16
AD		 1469 vga_out8(0x3d4, 0x66, par);
1470 vga_out8(0x3d5, cr66, par);
1471 vga_out8(0x3d4, 0x3a, par);
1472 vga_out8(0x3d5, cr3a, par);
1da177e4 1473
026fbe16
AD		 1474 SavageSetup2DEngine(par);
1475 vgaHWProtect(par, 0);
1da177e4
LT		 1476}
1477
026fbe16
AD		 1478static void savagefb_update_start(struct savagefb_par *par,
1479 struct fb_var_screeninfo *var)
1da177e4
LT		 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 */
1cc650c6
AD		 1487 vga_out16(0x3d4, (base & 0x00ff00) | 0x0c, par);
1488 vga_out16(0x3d4, ((base & 0x00ff) << 8) | 0x0d, par);
026fbe16
AD		 1489 vga_out8(0x3d4, 0x69, par);
1490 vga_out8(0x3d5, (base & 0x7f0000) >> 16, par);
1da177e4
LT		 1491}
1492
1493
1494static 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
6d83b0bb 1499 if (info->var.bits_per_pixel == 8) {
1da177e4 1500 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
6d83b0bb
AD		 1501 info->fix.xpanstep = 4;
1502 } else {
1da177e4 1503 info->fix.visual = FB_VISUAL_TRUECOLOR;
6d83b0bb
AD		 1504 info->fix.xpanstep = 2;
1505 }
1506
1da177e4
LT		 1507}
1508
026fbe16 1509static int savagefb_set_par(struct fb_info *info)
1da177e4 1510{
b8901b09 1511 struct savagefb_par *par = info->par;
1da177e4
LT		 1512 struct fb_var_screeninfo *var = &info->var;
1513 int err;
1514
1515 DBG("savagefb_set_par");
026fbe16 1516 err = savagefb_decode_var(var, par, &par->state);
1da177e4
LT		 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
026fbe16
AD		 1535 savagefb_set_par_int(par, &par->state);
1536 fb_set_cmap(&info->cmap, info);
1da177e4
LT		 1537 savagefb_set_fix(info);
1538 savagefb_set_clip(info);
1539
d8ad7e0b 1540 SavagePrintRegs(par);
1da177e4
LT		 1541 return 0;
1542}
1543
1544/*
1545 * Pan or Wrap the Display
1546 */
026fbe16
AD		 1547static int savagefb_pan_display(struct fb_var_screeninfo *var,
1548 struct fb_info *info)
1da177e4 1549{
b8901b09 1550 struct savagefb_par *par = info->par;
1da177e4 1551
026fbe16 1552 savagefb_update_start(par, var);
1da177e4
LT		 1553 return 0;
1554}
1555
13776711
AD		 1556static 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) {
1cc650c6
AD		 1562 vga_out8(0x3c4, 0x08, par);
1563 sr8 = vga_in8(0x3c5, par);
13776711 1564 sr8 |= 0x06;
1cc650c6
AD		 1565 vga_out8(0x3c5, sr8, par);
1566 vga_out8(0x3c4, 0x0d, par);
1567 srd = vga_in8(0x3c5, par);
b9f9d470 1568 srd &= 0x50;
13776711
AD		 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
1cc650c6
AD		 1585 vga_out8(0x3c4, 0x0d, par);
1586 vga_out8(0x3c5, srd, par);
13776711
AD		 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:
1cc650c6
AD		 1594 vga_out8(0x3c4, 0x31, par); /* SR31 bit 4 - FP enable */
1595 vga_out8(0x3c5, vga_in8(0x3c5, par) | 0x10, par);
13776711
AD		 1596 break;
1597 case FB_BLANK_VSYNC_SUSPEND:
1598 case FB_BLANK_HSYNC_SUSPEND:
1599 case FB_BLANK_POWERDOWN:
1cc650c6
AD		 1600 vga_out8(0x3c4, 0x31, par); /* SR31 bit 4 - FP enable */
1601 vga_out8(0x3c5, vga_in8(0x3c5, par) & ~0x10, par);
13776711
AD		 1602 break;
1603 }
1604 }
1605
1606 return (blank == FB_BLANK_NORMAL) ? 1 : 0;
1607}
1da177e4 1608
22d832ed
AD		 1609static int savagefb_open(struct fb_info *info, int user)
1610{
1611 struct savagefb_par *par = info->par;
1612
1613 mutex_lock(&par->open_lock);
1614
1615 if (!par->open_count) {
1616 memset(&par->vgastate, 0, sizeof(par->vgastate));
1617 par->vgastate.flags = VGA_SAVE_CMAP | VGA_SAVE_FONTS |
1618 VGA_SAVE_MODE;
1619 par->vgastate.vgabase = par->mmio.vbase + 0x8000;
1620 save_vga(&par->vgastate);
1621 savage_get_default_par(par, &par->initial);
1622 }
1623
1624 par->open_count++;
1625 mutex_unlock(&par->open_lock);
1626 return 0;
1627}
1628
1629static int savagefb_release(struct fb_info *info, int user)
1630{
1631 struct savagefb_par *par = info->par;
1632
1633 mutex_lock(&par->open_lock);
1634
1635 if (par->open_count == 1) {
1636 savage_set_default_par(par, &par->initial);
1637 restore_vga(&par->vgastate);
1638 }
1639
1640 par->open_count--;
1641 mutex_unlock(&par->open_lock);
1642 return 0;
1643}
1644
1da177e4
LT		 1645static struct fb_ops savagefb_ops = {
1646 .owner = THIS_MODULE,
22d832ed
AD		 1647 .fb_open = savagefb_open,
1648 .fb_release = savagefb_release,
1da177e4
LT		 1649 .fb_check_var = savagefb_check_var,
1650 .fb_set_par = savagefb_set_par,
1651 .fb_setcolreg = savagefb_setcolreg,
1652 .fb_pan_display = savagefb_pan_display,
13776711 1653 .fb_blank = savagefb_blank,
1da177e4
LT		 1654#if defined(CONFIG_FB_SAVAGE_ACCEL)
1655 .fb_fillrect = savagefb_fillrect,
1656 .fb_copyarea = savagefb_copyarea,
1657 .fb_imageblit = savagefb_imageblit,
1658 .fb_sync = savagefb_sync,
1659#else
1660 .fb_fillrect = cfb_fillrect,
1661 .fb_copyarea = cfb_copyarea,
1662 .fb_imageblit = cfb_imageblit,
1663#endif
1da177e4
LT		 1664};
1665
1666/* --------------------------------------------------------------------- */
1667
1668static struct fb_var_screeninfo __devinitdata savagefb_var800x600x8 = {
1669 .accel_flags = FB_ACCELF_TEXT,
1670 .xres = 800,
1671 .yres = 600,
1672 .xres_virtual = 800,
1673 .yres_virtual = 600,
1674 .bits_per_pixel = 8,
1675 .pixclock = 25000,
1676 .left_margin = 88,
1677 .right_margin = 40,
1678 .upper_margin = 23,
1679 .lower_margin = 1,
1680 .hsync_len = 128,
1681 .vsync_len = 4,
1682 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
1683 .vmode = FB_VMODE_NONINTERLACED
1684};
1685
026fbe16 1686static void savage_enable_mmio(struct savagefb_par *par)
1da177e4
LT		 1687{
1688 unsigned char val;
1689
026fbe16 1690 DBG("savage_enable_mmio\n");
1da177e4 1691
026fbe16
AD		 1692 val = vga_in8(0x3c3, par);
1693 vga_out8(0x3c3, val | 0x01, par);
1694 val = vga_in8(0x3cc, par);
1695 vga_out8(0x3c2, val | 0x01, par);
1da177e4
LT		 1696
1697 if (par->chip >= S3_SAVAGE4) {
026fbe16
AD		 1698 vga_out8(0x3d4, 0x40, par);
1699 val = vga_in8(0x3d5, par);
1700 vga_out8(0x3d5, val | 1, par);
1da177e4
LT		 1701 }
1702}
1703
1704
026fbe16 1705static void savage_disable_mmio(struct savagefb_par *par)
1da177e4
LT		 1706{
1707 unsigned char val;
1708
026fbe16 1709 DBG("savage_disable_mmio\n");
1da177e4 1710
026fbe16
AD		 1711 if (par->chip >= S3_SAVAGE4) {
1712 vga_out8(0x3d4, 0x40, par);
1713 val = vga_in8(0x3d5, par);
1714 vga_out8(0x3d5, val | 1, par);
1da177e4
LT		 1715 }
1716}
1717
1718
026fbe16 1719static int __devinit savage_map_mmio(struct fb_info *info)
1da177e4 1720{
b8901b09 1721 struct savagefb_par *par = info->par;
026fbe16 1722 DBG("savage_map_mmio");
1da177e4 1723
026fbe16
AD		 1724 if (S3_SAVAGE3D_SERIES(par->chip))
1725 par->mmio.pbase = pci_resource_start(par->pcidev, 0) +
1da177e4
LT		 1726 SAVAGE_NEWMMIO_REGBASE_S3;
1727 else
026fbe16 1728 par->mmio.pbase = pci_resource_start(par->pcidev, 0) +
1da177e4
LT		 1729 SAVAGE_NEWMMIO_REGBASE_S4;
1730
1731 par->mmio.len = SAVAGE_NEWMMIO_REGSIZE;
1732
026fbe16 1733 par->mmio.vbase = ioremap(par->mmio.pbase, par->mmio.len);
1da177e4 1734 if (!par->mmio.vbase) {
026fbe16 1735 printk("savagefb: unable to map memory mapped IO\n");
1da177e4
LT		 1736 return -ENOMEM;
1737 } else
026fbe16 1738 printk(KERN_INFO "savagefb: mapped io at %p\n",
1da177e4
LT		 1739 par->mmio.vbase);
1740
1741 info->fix.mmio_start = par->mmio.pbase;
1742 info->fix.mmio_len = par->mmio.len;
1743
0d3e8fe6 1744 par->bci_base = (u32 __iomem *)(par->mmio.vbase + BCI_BUFFER_OFFSET);
1da177e4
LT		 1745 par->bci_ptr = 0;
1746
026fbe16 1747 savage_enable_mmio(par);
1da177e4
LT		 1748
1749 return 0;
1750}
1751
026fbe16 1752static void savage_unmap_mmio(struct fb_info *info)
1da177e4 1753{
b8901b09 1754 struct savagefb_par *par = info->par;
026fbe16 1755 DBG("savage_unmap_mmio");
1da177e4
LT		 1756
1757 savage_disable_mmio(par);
1758
1759 if (par->mmio.vbase) {
0d3e8fe6 1760 iounmap(par->mmio.vbase);
1da177e4
LT		 1761 par->mmio.vbase = NULL;
1762 }
1763}
1764
026fbe16
AD		 1765static int __devinit savage_map_video(struct fb_info *info,
1766 int video_len)
1da177e4 1767{
b8901b09 1768 struct savagefb_par *par = info->par;
1da177e4
LT		 1769 int resource;
1770
1771 DBG("savage_map_video");
1772
026fbe16 1773 if (S3_SAVAGE3D_SERIES(par->chip))
1da177e4
LT		 1774 resource = 0;
1775 else
1776 resource = 1;
1777
026fbe16 1778 par->video.pbase = pci_resource_start(par->pcidev, resource);
1da177e4 1779 par->video.len = video_len;
026fbe16 1780 par->video.vbase = ioremap(par->video.pbase, par->video.len);
1da177e4
LT		 1781
1782 if (!par->video.vbase) {
026fbe16 1783 printk("savagefb: unable to map screen memory\n");
1da177e4
LT		 1784 return -ENOMEM;
1785 } else
026fbe16
AD		 1786 printk(KERN_INFO "savagefb: mapped framebuffer at %p, "
1787 "pbase == %x\n", par->video.vbase, par->video.pbase);
1da177e4
LT		 1788
1789 info->fix.smem_start = par->video.pbase;
1790 info->fix.smem_len = par->video.len - par->cob_size;
1791 info->screen_base = par->video.vbase;
1792
1793#ifdef CONFIG_MTRR
026fbe16
AD		 1794 par->video.mtrr = mtrr_add(par->video.pbase, video_len,
1795 MTRR_TYPE_WRCOMB, 1);
1da177e4
LT		 1796#endif
1797
1798 /* Clear framebuffer, it's all white in memory after boot */
026fbe16 1799 memset_io(par->video.vbase, 0, par->video.len);
1da177e4
LT		 1800
1801 return 0;
1802}
1803
026fbe16 1804static void savage_unmap_video(struct fb_info *info)
1da177e4 1805{
b8901b09 1806 struct savagefb_par *par = info->par;
1da177e4
LT		 1807
1808 DBG("savage_unmap_video");
1809
1810 if (par->video.vbase) {
1811#ifdef CONFIG_MTRR
026fbe16 1812 mtrr_del(par->video.mtrr, par->video.pbase, par->video.len);
1da177e4
LT		 1813#endif
1814
026fbe16 1815 iounmap(par->video.vbase);
1da177e4
LT		 1816 par->video.vbase = NULL;
1817 info->screen_base = NULL;
1818 }
1819}
1820
026fbe16 1821static int savage_init_hw(struct savagefb_par *par)
1da177e4
LT		 1822{
1823 unsigned char config1, m, n, n1, n2, sr8, cr3f, cr66 = 0, tmp;
1824
1825 static unsigned char RamSavage3D[] = { 8, 4, 4, 2 };
1826 static unsigned char RamSavage4[] = { 2, 4, 8, 12, 16, 32, 64, 32 };
1827 static unsigned char RamSavageMX[] = { 2, 8, 4, 16, 8, 16, 4, 16 };
1828 static unsigned char RamSavageNB[] = { 0, 2, 4, 8, 16, 32, 2, 2 };
13776711 1829 int videoRam, videoRambytes, dvi;
1da177e4
LT		 1830
1831 DBG("savage_init_hw");
1832
1833 /* unprotect CRTC[0-7] */
1cc650c6
AD		 1834 vga_out8(0x3d4, 0x11, par);
1835 tmp = vga_in8(0x3d5, par);
1836 vga_out8(0x3d5, tmp & 0x7f, par);
1da177e4
LT		 1837
1838 /* unlock extended regs */
1cc650c6
AD		 1839 vga_out16(0x3d4, 0x4838, par);
1840 vga_out16(0x3d4, 0xa039, par);
1841 vga_out16(0x3c4, 0x0608, par);
1da177e4 1842
1cc650c6
AD		 1843 vga_out8(0x3d4, 0x40, par);
1844 tmp = vga_in8(0x3d5, par);
1845 vga_out8(0x3d5, tmp & ~0x01, par);
1da177e4
LT		 1846
1847 /* unlock sys regs */
1cc650c6
AD		 1848 vga_out8(0x3d4, 0x38, par);
1849 vga_out8(0x3d5, 0x48, par);
1da177e4
LT		 1850
1851 /* Unlock system registers. */
1cc650c6 1852 vga_out16(0x3d4, 0x4838, par);
1da177e4
LT		 1853
1854 /* Next go on to detect amount of installed ram */
1855
1cc650c6
AD		 1856 vga_out8(0x3d4, 0x36, par); /* for register CR36 (CONFG_REG1), */
1857 config1 = vga_in8(0x3d5, par); /* get amount of vram installed */
1da177e4
LT		 1858
1859 /* Compute the amount of video memory and offscreen memory. */
1860
1861 switch (par->chip) {
1862 case S3_SAVAGE3D:
026fbe16 1863 videoRam = RamSavage3D[(config1 & 0xC0) >> 6 ] * 1024;
1da177e4
LT		 1864 break;
1865
1866 case S3_SAVAGE4:
1867 /*
1868 * The Savage4 has one ugly special case to consider. On
1869 * systems with 4 banks of 2Mx32 SDRAM, the BIOS says 4MB
1870 * when it really means 8MB. Why do it the same when you
1871 * can do it different...
1872 */
1cc650c6 1873 vga_out8(0x3d4, 0x68, par); /* memory control 1 */
026fbe16 1874 if ((vga_in8(0x3d5, par) & 0xC0) == (0x01 << 6))
1da177e4
LT		 1875 RamSavage4[1] = 8;
1876
1877 /*FALLTHROUGH*/
1878
1879 case S3_SAVAGE2000:
026fbe16 1880 videoRam = RamSavage4[(config1 & 0xE0) >> 5] * 1024;
1da177e4
LT		 1881 break;
1882
1883 case S3_SAVAGE_MX:
1884 case S3_SUPERSAVAGE:
026fbe16 1885 videoRam = RamSavageMX[(config1 & 0x0E) >> 1] * 1024;
1da177e4
LT		 1886 break;
1887
1888 case S3_PROSAVAGE:
026fbe16 1889 videoRam = RamSavageNB[(config1 & 0xE0) >> 5] * 1024;
1da177e4
LT		 1890 break;
1891
1892 default:
1893 /* How did we get here? */
1894 videoRam = 0;
1895 break;
1896 }
1897
1898 videoRambytes = videoRam * 1024;
1899
026fbe16 1900 printk(KERN_INFO "savagefb: probed videoram: %dk\n", videoRam);
1da177e4
LT		 1901
1902 /* reset graphics engine to avoid memory corruption */
026fbe16
AD		 1903 vga_out8(0x3d4, 0x66, par);
1904 cr66 = vga_in8(0x3d5, par);
1905 vga_out8(0x3d5, cr66 | 0x02, par);
1906 udelay(10000);
1da177e4 1907
026fbe16
AD		 1908 vga_out8(0x3d4, 0x66, par);
1909 vga_out8(0x3d5, cr66 & ~0x02, par); /* clear reset flag */
1910 udelay(10000);
1da177e4
LT		 1911
1912
1913 /*
1914 * reset memory interface, 3D engine, AGP master, PCI master,
1915 * master engine unit, motion compensation/LPB
1916 */
026fbe16
AD		 1917 vga_out8(0x3d4, 0x3f, par);
1918 cr3f = vga_in8(0x3d5, par);
1919 vga_out8(0x3d5, cr3f | 0x08, par);
1920 udelay(10000);
1da177e4 1921
026fbe16
AD		 1922 vga_out8(0x3d4, 0x3f, par);
1923 vga_out8(0x3d5, cr3f & ~0x08, par); /* clear reset flags */
1924 udelay(10000);
1da177e4
LT		 1925
1926 /* Savage ramdac speeds */
1927 par->numClocks = 4;
1928 par->clock[0] = 250000;
1929 par->clock[1] = 250000;
1930 par->clock[2] = 220000;
1931 par->clock[3] = 220000;
1932
1933 /* detect current mclk */
1cc650c6
AD		 1934 vga_out8(0x3c4, 0x08, par);
1935 sr8 = vga_in8(0x3c5, par);
1936 vga_out8(0x3c5, 0x06, par);
1937 vga_out8(0x3c4, 0x10, par);
1938 n = vga_in8(0x3c5, par);
1939 vga_out8(0x3c4, 0x11, par);
1940 m = vga_in8(0x3c5, par);
1941 vga_out8(0x3c4, 0x08, par);
1942 vga_out8(0x3c5, sr8, par);
1da177e4
LT		 1943 m &= 0x7f;
1944 n1 = n & 0x1f;
1945 n2 = (n >> 5) & 0x03;
1946 par->MCLK = ((1431818 * (m+2)) / (n1+2) / (1 << n2) + 50) / 100;
026fbe16 1947 printk(KERN_INFO "savagefb: Detected current MCLK value of %d kHz\n",
1da177e4
LT		 1948 par->MCLK);
1949
13776711
AD		 1950 /* check for DVI/flat panel */
1951 dvi = 0;
1952
1953 if (par->chip == S3_SAVAGE4) {
1954 unsigned char sr30 = 0x00;
1955
1cc650c6 1956 vga_out8(0x3c4, 0x30, par);
13776711 1957 /* clear bit 1 */
1cc650c6
AD		 1958 vga_out8(0x3c5, vga_in8(0x3c5, par) & ~0x02, par);
1959 sr30 = vga_in8(0x3c5, par);
13776711
AD		 1960 if (sr30 & 0x02 /*0x04 */) {
1961 dvi = 1;
1962 printk("savagefb: Digital Flat Panel Detected\n");
1963 }
1964 }
1965
7b6a186d 1966 if (S3_SAVAGE_MOBILE_SERIES(par->chip) && !par->crtonly)
13776711
AD		 1967 par->display_type = DISP_LCD;
1968 else if (dvi || (par->chip == S3_SAVAGE4 && par->dvi))
1969 par->display_type = DISP_DFP;
1970 else
1971 par->display_type = DISP_CRT;
1972
1da177e4
LT		 1973 /* Check LCD panel parrmation */
1974
7b6a186d 1975 if (par->display_type == DISP_LCD) {
026fbe16 1976 unsigned char cr6b = VGArCR(0x6b, par);
1da177e4 1977
026fbe16
AD		 1978 int panelX = (VGArSEQ(0x61, par) +
1979 ((VGArSEQ(0x66, par) & 0x02) << 7) + 1) * 8;
1980 int panelY = (VGArSEQ(0x69, par) +
1981 ((VGArSEQ(0x6e, par) & 0x70) << 4) + 1);
1da177e4
LT		 1982
1983 char * sTechnology = "Unknown";
1984
1985 /* OK, I admit it. I don't know how to limit the max dot clock
1986 * for LCD panels of various sizes. I thought I copied the
1987 * formula from the BIOS, but many users have parrmed me of
1988 * my folly.
1989 *
1990 * Instead, I'll abandon any attempt to automatically limit the
1991 * clock, and add an LCDClock option to XF86Config. Some day,
1992 * I should come back to this.
1993 */
1994
1995 enum ACTIVE_DISPLAYS { /* These are the bits in CR6B */
1996 ActiveCRT = 0x01,
1997 ActiveLCD = 0x02,
1998 ActiveTV = 0x04,
1999 ActiveCRT2 = 0x20,
2000 ActiveDUO = 0x80
2001 };
2002
026fbe16 2003 if ((VGArSEQ(0x39, par) & 0x03) == 0) {
1da177e4 2004 sTechnology = "TFT";
026fbe16 2005 } else if ((VGArSEQ(0x30, par) & 0x01) == 0) {
1da177e4
LT		 2006 sTechnology = "DSTN";
2007 } else {
2008 sTechnology = "STN";
2009 }
2010
026fbe16
AD		 2011 printk(KERN_INFO "savagefb: %dx%d %s LCD panel detected %s\n",
2012 panelX, panelY, sTechnology,
2013 cr6b & ActiveLCD ? "and active" : "but not active");
1da177e4 2014
026fbe16 2015 if (cr6b & ActiveLCD) {
1da177e4
LT		 2016 /*
2017 * If the LCD is active and panel expansion is enabled,
2018 * we probably want to kill the HW cursor.
2019 */
2020
026fbe16
AD		 2021 printk(KERN_INFO "savagefb: Limiting video mode to "
2022 "%dx%d\n", panelX, panelY);
1da177e4
LT		 2023
2024 par->SavagePanelWidth = panelX;
2025 par->SavagePanelHeight = panelY;
2026
13776711
AD		 2027 } else
2028 par->display_type = DISP_CRT;
1da177e4
LT		 2029 }
2030
026fbe16 2031 savage_get_default_par(par, &par->state);
2356614b 2032 par->save = par->state;
1da177e4 2033
026fbe16 2034 if (S3_SAVAGE4_SERIES(par->chip)) {
1da177e4
LT		 2035 /*
2036 * The Savage4 and ProSavage have COB coherency bugs which
2037 * render the buffer useless. We disable it.
2038 */
2039 par->cob_index = 2;
2040 par->cob_size = 0x8000 << par->cob_index;
2041 par->cob_offset = videoRambytes;
2042 } else {
2043 /* We use 128kB for the COB on all chips. */
2044
2045 par->cob_index = 7;
2046 par->cob_size = 0x400 << par->cob_index;
2047 par->cob_offset = videoRambytes - par->cob_size;
2048 }
2049
2050 return videoRambytes;
2051}
2052
026fbe16
AD		 2053static int __devinit savage_init_fb_info(struct fb_info *info,
2054 struct pci_dev *dev,
2055 const struct pci_device_id *id)
1da177e4 2056{
b8901b09 2057 struct savagefb_par *par = info->par;
1da177e4
LT		 2058 int err = 0;
2059
2060 par->pcidev = dev;
2061
2062 info->fix.type = FB_TYPE_PACKED_PIXELS;
2063 info->fix.type_aux = 0;
1da177e4
LT		 2064 info->fix.ypanstep = 1;
2065 info->fix.ywrapstep = 0;
2066 info->fix.accel = id->driver_data;
2067
2068 switch (info->fix.accel) {
2069 case FB_ACCEL_SUPERSAVAGE:
2070 par->chip = S3_SUPERSAVAGE;
026fbe16 2071 snprintf(info->fix.id, 16, "SuperSavage");
1da177e4
LT		 2072 break;
2073 case FB_ACCEL_SAVAGE4:
2074 par->chip = S3_SAVAGE4;
026fbe16 2075 snprintf(info->fix.id, 16, "Savage4");
1da177e4
LT		 2076 break;
2077 case FB_ACCEL_SAVAGE3D:
2078 par->chip = S3_SAVAGE3D;
026fbe16 2079 snprintf(info->fix.id, 16, "Savage3D");
1da177e4
LT		 2080 break;
2081 case FB_ACCEL_SAVAGE3D_MV:
2082 par->chip = S3_SAVAGE3D;
026fbe16 2083 snprintf(info->fix.id, 16, "Savage3D-MV");
1da177e4
LT		 2084 break;
2085 case FB_ACCEL_SAVAGE2000:
2086 par->chip = S3_SAVAGE2000;
026fbe16 2087 snprintf(info->fix.id, 16, "Savage2000");
1da177e4
LT		 2088 break;
2089 case FB_ACCEL_SAVAGE_MX_MV:
2090 par->chip = S3_SAVAGE_MX;
026fbe16 2091 snprintf(info->fix.id, 16, "Savage/MX-MV");
1da177e4
LT		 2092 break;
2093 case FB_ACCEL_SAVAGE_MX:
2094 par->chip = S3_SAVAGE_MX;
026fbe16 2095 snprintf(info->fix.id, 16, "Savage/MX");
1da177e4
LT		 2096 break;
2097 case FB_ACCEL_SAVAGE_IX_MV:
2098 par->chip = S3_SAVAGE_MX;
026fbe16 2099 snprintf(info->fix.id, 16, "Savage/IX-MV");
1da177e4
LT		 2100 break;
2101 case FB_ACCEL_SAVAGE_IX:
2102 par->chip = S3_SAVAGE_MX;
026fbe16 2103 snprintf(info->fix.id, 16, "Savage/IX");
1da177e4
LT		 2104 break;
2105 case FB_ACCEL_PROSAVAGE_PM:
2106 par->chip = S3_PROSAVAGE;
026fbe16 2107 snprintf(info->fix.id, 16, "ProSavagePM");
1da177e4
LT		 2108 break;
2109 case FB_ACCEL_PROSAVAGE_KM:
2110 par->chip = S3_PROSAVAGE;
026fbe16 2111 snprintf(info->fix.id, 16, "ProSavageKM");
1da177e4
LT		 2112 break;
2113 case FB_ACCEL_S3TWISTER_P:
7b6a186d 2114 par->chip = S3_PROSAVAGE;
026fbe16 2115 snprintf(info->fix.id, 16, "TwisterP");
1da177e4
LT		 2116 break;
2117 case FB_ACCEL_S3TWISTER_K:
7b6a186d 2118 par->chip = S3_PROSAVAGE;
026fbe16 2119 snprintf(info->fix.id, 16, "TwisterK");
1da177e4
LT		 2120 break;
2121 case FB_ACCEL_PROSAVAGE_DDR:
7b6a186d 2122 par->chip = S3_PROSAVAGE;
026fbe16 2123 snprintf(info->fix.id, 16, "ProSavageDDR");
1da177e4
LT		 2124 break;
2125 case FB_ACCEL_PROSAVAGE_DDRK:
2126 par->chip = S3_PROSAVAGE;
026fbe16 2127 snprintf(info->fix.id, 16, "ProSavage8");
1da177e4
LT		 2128 break;
2129 }
2130
2131 if (S3_SAVAGE3D_SERIES(par->chip)) {
2132 par->SavageWaitIdle = savage3D_waitidle;
2133 par->SavageWaitFifo = savage3D_waitfifo;
2134 } else if (S3_SAVAGE4_SERIES(par->chip) ||
2135 S3_SUPERSAVAGE == par->chip) {
2136 par->SavageWaitIdle = savage4_waitidle;
2137 par->SavageWaitFifo = savage4_waitfifo;
2138 } else {
2139 par->SavageWaitIdle = savage2000_waitidle;
2140 par->SavageWaitFifo = savage2000_waitfifo;
2141 }
2142
2143 info->var.nonstd = 0;
2144 info->var.activate = FB_ACTIVATE_NOW;
2145 info->var.width = -1;
2146 info->var.height = -1;
2147 info->var.accel_flags = 0;
2148
2149 info->fbops = &savagefb_ops;
2150 info->flags = FBINFO_DEFAULT |
2151 FBINFO_HWACCEL_YPAN |
2152 FBINFO_HWACCEL_XPAN;
2153
2154 info->pseudo_palette = par->pseudo_palette;
2155
2156#if defined(CONFIG_FB_SAVAGE_ACCEL)
2157 /* FIFO size + padding for commands */
dd00cc48 2158 info->pixmap.addr = kcalloc(8, 1024, GFP_KERNEL);
1da177e4
LT		 2159
2160 err = -ENOMEM;
2161 if (info->pixmap.addr) {
1da177e4
LT		 2162 info->pixmap.size = 8*1024;
2163 info->pixmap.scan_align = 4;
2164 info->pixmap.buf_align = 4;
58a60643 2165 info->pixmap.access_align = 32;
1da177e4 2166
026fbe16 2167 err = fb_alloc_cmap(&info->cmap, NR_PALETTE, 0);
6062bfa1 2168 if (!err)
1da177e4
LT		 2169 info->flags |= FBINFO_HWACCEL_COPYAREA |
2170 FBINFO_HWACCEL_FILLRECT |
2171 FBINFO_HWACCEL_IMAGEBLIT;
1da177e4
LT		 2172 }
2173#endif
2174 return err;
2175}
2176
2177/* --------------------------------------------------------------------- */
2178
026fbe16
AD		 2179static int __devinit savagefb_probe(struct pci_dev* dev,
2180 const struct pci_device_id* id)
1da177e4
LT		 2181{
2182 struct fb_info *info;
2183 struct savagefb_par *par;
2184 u_int h_sync, v_sync;
2185 int err, lpitch;
2186 int video_len;
2187
2188 DBG("savagefb_probe");
1da177e4
LT		 2189
2190 info = framebuffer_alloc(sizeof(struct savagefb_par), &dev->dev);
2191 if (!info)
2192 return -ENOMEM;
2193 par = info->par;
22d832ed 2194 mutex_init(&par->open_lock);
1da177e4
LT		 2195 err = pci_enable_device(dev);
2196 if (err)
2197 goto failed_enable;
2198
6062bfa1 2199 if ((err = pci_request_regions(dev, "savagefb"))) {
1da177e4
LT		 2200 printk(KERN_ERR "cannot request PCI regions\n");
2201 goto failed_enable;
2202 }
2203
2204 err = -ENOMEM;
2205
6062bfa1 2206 if ((err = savage_init_fb_info(info, dev, id)))
1da177e4
LT		 2207 goto failed_init;
2208
2209 err = savage_map_mmio(info);
2210 if (err)
2211 goto failed_mmio;
2212
2213 video_len = savage_init_hw(par);
6062bfa1 2214 /* FIXME: cant be negative */
1da177e4
LT		 2215 if (video_len < 0) {
2216 err = video_len;
2217 goto failed_mmio;
2218 }
2219
2220 err = savage_map_video(info, video_len);
2221 if (err)
2222 goto failed_video;
2223
2224 INIT_LIST_HEAD(&info->modelist);
2225#if defined(CONFIG_FB_SAVAGE_I2C)
2226 savagefb_create_i2c_busses(info);
13776711 2227 savagefb_probe_i2c_connector(info, &par->edid);
1da177e4 2228 fb_edid_to_monspecs(par->edid, &info->monspecs);
8d57f221 2229 kfree(par->edid);
1da177e4
LT		 2230 fb_videomode_to_modelist(info->monspecs.modedb,
2231 info->monspecs.modedb_len,
2232 &info->modelist);
2233#endif
2234 info->var = savagefb_var800x600x8;
2235
2236 if (mode_option) {
2237 fb_find_mode(&info->var, info, mode_option,
2238 info->monspecs.modedb, info->monspecs.modedb_len,
2239 NULL, 8);
2240 } else if (info->monspecs.modedb != NULL) {
9791d763 2241 const struct fb_videomode *mode;
1da177e4 2242
9791d763
GU		 2243 mode = fb_find_best_display(&info->monspecs, &info->modelist);
2244 savage_update_var(&info->var, mode);
1da177e4
LT		 2245 }
2246
2247 /* maximize virtual vertical length */
2248 lpitch = info->var.xres_virtual*((info->var.bits_per_pixel + 7) >> 3);
2249 info->var.yres_virtual = info->fix.smem_len/lpitch;
2250
2251 if (info->var.yres_virtual < info->var.yres)
2252 goto failed;
2253
2254#if defined(CONFIG_FB_SAVAGE_ACCEL)
2255 /*
2256 * The clipping coordinates are masked with 0xFFF, so limit our
2257 * virtual resolutions to these sizes.
2258 */
2259 if (info->var.yres_virtual > 0x1000)
2260 info->var.yres_virtual = 0x1000;
2261
2262 if (info->var.xres_virtual > 0x1000)
2263 info->var.xres_virtual = 0x1000;
2264#endif
2265 savagefb_check_var(&info->var, info);
2266 savagefb_set_fix(info);
2267
2268 /*
2269 * Calculate the hsync and vsync frequencies. Note that
2270 * we split the 1e12 constant up so that we can preserve
2271 * the precision and fit the results into 32-bit registers.
2272 * (1953125000 * 512 = 1e12)
2273 */
2274 h_sync = 1953125000 / info->var.pixclock;
2275 h_sync = h_sync * 512 / (info->var.xres + info->var.left_margin +
2276 info->var.right_margin +
2277 info->var.hsync_len);
2278 v_sync = h_sync / (info->var.yres + info->var.upper_margin +
2279 info->var.lower_margin + info->var.vsync_len);
2280
2281 printk(KERN_INFO "savagefb v" SAVAGEFB_VERSION ": "
2282 "%dkB VRAM, using %dx%d, %d.%03dkHz, %dHz\n",
2283 info->fix.smem_len >> 10,
2284 info->var.xres, info->var.yres,
2285 h_sync / 1000, h_sync % 1000, v_sync);
2286
2287
2288 fb_destroy_modedb(info->monspecs.modedb);
2289 info->monspecs.modedb = NULL;
2290
026fbe16 2291 err = register_framebuffer(info);
1da177e4
LT		 2292 if (err < 0)
2293 goto failed;
2294
026fbe16
AD		 2295 printk(KERN_INFO "fb: S3 %s frame buffer device\n",
2296 info->fix.id);
1da177e4
LT		 2297
2298 /*
2299 * Our driver data
2300 */
2301 pci_set_drvdata(dev, info);
2302
2303 return 0;
2304
2305 failed:
2306#ifdef CONFIG_FB_SAVAGE_I2C
2307 savagefb_delete_i2c_busses(info);
2308#endif
026fbe16 2309 fb_alloc_cmap(&info->cmap, 0, 0);
1da177e4
LT		 2310 savage_unmap_video(info);
2311 failed_video:
026fbe16 2312 savage_unmap_mmio(info);
1da177e4
LT		 2313 failed_mmio:
2314 kfree(info->pixmap.addr);
2315 failed_init:
2316 pci_release_regions(dev);
2317 failed_enable:
2318 framebuffer_release(info);
2319
2320 return err;
2321}
2322
026fbe16 2323static void __devexit savagefb_remove(struct pci_dev *dev)
1da177e4 2324{
b8901b09 2325 struct fb_info *info = pci_get_drvdata(dev);
1da177e4
LT		 2326
2327 DBG("savagefb_remove");
2328
2329 if (info) {
2330 /*
2331 * If unregister_framebuffer fails, then
2332 * we will be leaving hooks that could cause
2333 * oopsen laying around.
2334 */
026fbe16
AD		 2335 if (unregister_framebuffer(info))
2336 printk(KERN_WARNING "savagefb: danger danger! "
2337 "Oopsen imminent!\n");
1da177e4
LT		 2338
2339#ifdef CONFIG_FB_SAVAGE_I2C
2340 savagefb_delete_i2c_busses(info);
2341#endif
026fbe16
AD		 2342 fb_alloc_cmap(&info->cmap, 0, 0);
2343 savage_unmap_video(info);
2344 savage_unmap_mmio(info);
1da177e4
LT		 2345 kfree(info->pixmap.addr);
2346 pci_release_regions(dev);
2347 framebuffer_release(info);
2348
2349 /*
2350 * Ensure that the driver data is no longer
2351 * valid.
2352 */
2353 pci_set_drvdata(dev, NULL);
2354 }
2355}
2356
c78a7c2d 2357static int savagefb_suspend(struct pci_dev *dev, pm_message_t mesg)
1da177e4 2358{
b8901b09
AD		 2359 struct fb_info *info = pci_get_drvdata(dev);
2360 struct savagefb_par *par = info->par;
1da177e4
LT		 2361
2362 DBG("savagefb_suspend");
1da177e4 2363
c78a7c2d
DB		 2364 if (mesg.event == PM_EVENT_PRETHAW)
2365 mesg.event = PM_EVENT_FREEZE;
2366 par->pm_state = mesg.event;
2367 dev->dev.power.power_state = mesg;
13776711
AD		 2368
2369 /*
2370 * For PM_EVENT_FREEZE, do not power down so the console
2371 * can remain active.
2372 */
c78a7c2d 2373 if (mesg.event == PM_EVENT_FREEZE)
13776711 2374 return 0;
13776711 2375
1da177e4 2376 acquire_console_sem();
13776711 2377 fb_set_suspend(info, 1);
1da177e4 2378
13776711
AD		 2379 if (info->fbops->fb_sync)
2380 info->fbops->fb_sync(info);
2381
2382 savagefb_blank(FB_BLANK_POWERDOWN, info);
f8020dc5 2383 savage_set_default_par(par, &par->save);
13776711
AD		 2384 savage_disable_mmio(par);
2385 pci_save_state(dev);
1da177e4 2386 pci_disable_device(dev);
c78a7c2d 2387 pci_set_power_state(dev, pci_choose_state(dev, mesg));
13776711 2388 release_console_sem();
1da177e4
LT		 2389
2390 return 0;
2391}
2392
026fbe16 2393static int savagefb_resume(struct pci_dev* dev)
1da177e4 2394{
b8901b09
AD		 2395 struct fb_info *info = pci_get_drvdata(dev);
2396 struct savagefb_par *par = info->par;
13776711 2397 int cur_state = par->pm_state;
1da177e4
LT		 2398
2399 DBG("savage_resume");
2400
13776711 2401 par->pm_state = PM_EVENT_ON;
1da177e4 2402
13776711
AD		 2403 /*
2404 * The adapter was not powered down coming back from a
2405 * PM_EVENT_FREEZE.
2406 */
2407 if (cur_state == PM_EVENT_FREEZE) {
2408 pci_set_power_state(dev, PCI_D0);
2409 return 0;
2410 }
1da177e4
LT		 2411
2412 acquire_console_sem();
2413
13776711
AD		 2414 pci_set_power_state(dev, PCI_D0);
2415 pci_restore_state(dev);
2416
026fbe16 2417 if (pci_enable_device(dev))
13776711
AD		 2418 DBG("err");
2419
2420 pci_set_master(dev);
1da177e4
LT		 2421 savage_enable_mmio(par);
2422 savage_init_hw(par);
f8020dc5 2423 savagefb_set_par(info);
026fbe16 2424 fb_set_suspend(info, 0);
f8020dc5 2425 savagefb_blank(FB_BLANK_UNBLANK, info);
1da177e4
LT		 2426 release_console_sem();
2427
2428 return 0;
2429}
2430
2431
2432static struct pci_device_id savagefb_devices[] __devinitdata = {
2433 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX128,
2434 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2435
2436 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX64,
2437 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2438
2439 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX64C,
2440 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2441
2442 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX128SDR,
2443 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2444
2445 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX128DDR,
2446 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2447
2448 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX64SDR,
2449 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2450
2451 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IX64DDR,
2452 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2453
2454 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IXCSDR,
2455 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2456
2457 {PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_IXCDDR,
2458 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
2459
2460 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE4,
2461 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE4},
2462
2463 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE3D,
2464 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE3D},
2465
2466 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE3D_MV,
2467 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE3D_MV},
2468
2469 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE2000,
2470 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE2000},
2471
2472 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_MX_MV,
2473 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_MX_MV},
2474
2475 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_MX,
2476 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_MX},
2477
2478 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_IX_MV,
2479 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_IX_MV},
2480
2481 {PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE_IX,
2482 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SAVAGE_IX},
2483
2484 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_PM,
2485 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_PM},
2486
2487 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_KM,
2488 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_KM},
2489
2490 {PCI_VENDOR_ID_S3, PCI_CHIP_S3TWISTER_P,
2491 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_S3TWISTER_P},
2492
2493 {PCI_VENDOR_ID_S3, PCI_CHIP_S3TWISTER_K,
2494 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_S3TWISTER_K},
2495
2496 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_DDR,
2497 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_DDR},
2498
2499 {PCI_VENDOR_ID_S3, PCI_CHIP_PROSAVAGE_DDRK,
2500 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_PROSAVAGE_DDRK},
2501
2502 {0, 0, 0, 0, 0, 0, 0}
2503};
2504
2505MODULE_DEVICE_TABLE(pci, savagefb_devices);
2506
2507static struct pci_driver savagefb_driver = {
2508 .name = "savagefb",
2509 .id_table = savagefb_devices,
2510 .probe = savagefb_probe,
2511 .suspend = savagefb_suspend,
2512 .resume = savagefb_resume,
2513 .remove = __devexit_p(savagefb_remove)
2514};
2515
2516/* **************************** exit-time only **************************** */
2517
026fbe16 2518static void __exit savage_done(void)
1da177e4
LT		 2519{
2520 DBG("savage_done");
026fbe16 2521 pci_unregister_driver(&savagefb_driver);
1da177e4
LT		 2522}
2523
2524
2525/* ************************* init in-kernel code ************************** */
2526
2527static int __init savagefb_setup(char *options)
2528{
2529#ifndef MODULE
2530 char *this_opt;
2531
2532 if (!options || !*options)
2533 return 0;
2534
2535 while ((this_opt = strsep(&options, ",")) != NULL) {
2536 mode_option = this_opt;
2537 }
2538#endif /* !MODULE */
2539 return 0;
2540}
2541
2542static int __init savagefb_init(void)
2543{
2544 char *option;
2545
2546 DBG("savagefb_init");
2547
2548 if (fb_get_options("savagefb", &option))
2549 return -ENODEV;
2550
2551 savagefb_setup(option);
026fbe16 2552 return pci_register_driver(&savagefb_driver);
1da177e4
LT		 2553
2554}
2555
2556module_init(savagefb_init);
2557module_exit(savage_done);
c52890cc
AD		 2558
2559module_param(mode_option, charp, 0);
2560MODULE_PARM_DESC(mode_option, "Specify initial video mode");
kernel source for telekom puls (alcatel/mediatek)