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Automatic merge of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/gregkh/driver...
[linux-2.6/verdex.git] / drivers / video / neofb.c
blob5d424a30270acda396d49c204d04241244a18962
1 /*
2 * linux/drivers/video/neofb.c -- NeoMagic Framebuffer Driver
3 *
4 * Copyright (c) 2001-2002 Denis Oliver Kropp <dok@directfb.org>
5 *
6 *
7 * Card specific code is based on XFree86's neomagic driver.
8 * Framebuffer framework code is based on code of cyber2000fb.
9 *
10 * This file is subject to the terms and conditions of the GNU General
11 * Public License. See the file COPYING in the main directory of this
12 * archive for more details.
13 *
14 *
15 * 0.4.1
16 * - Cosmetic changes (dok)
17 *
18 * 0.4
19 * - Toshiba Libretto support, allow modes larger than LCD size if
20 * LCD is disabled, keep BIOS settings if internal/external display
21 * haven't been enabled explicitly
22 * (Thomas J. Moore <dark@mama.indstate.edu>)
23 *
24 * 0.3.3
25 * - Porting over to new fbdev api. (jsimmons)
26 *
27 * 0.3.2
28 * - got rid of all floating point (dok)
29 *
30 * 0.3.1
31 * - added module license (dok)
32 *
33 * 0.3
34 * - hardware accelerated clear and move for 2200 and above (dok)
35 * - maximum allowed dotclock is handled now (dok)
36 *
37 * 0.2.1
38 * - correct panning after X usage (dok)
39 * - added module and kernel parameters (dok)
40 * - no stretching if external display is enabled (dok)
41 *
42 * 0.2
43 * - initial version (dok)
44 *
45 *
46 * TODO
47 * - ioctl for internal/external switching
48 * - blanking
49 * - 32bit depth support, maybe impossible
50 * - disable pan-on-sync, need specs
51 *
52 * BUGS
53 * - white margin on bootup like with tdfxfb (colormap problem?)
54 *
55 */
56
57 #include <linux/config.h>
58 #include <linux/module.h>
59 #include <linux/kernel.h>
60 #include <linux/errno.h>
61 #include <linux/string.h>
62 #include <linux/mm.h>
63 #include <linux/tty.h>
64 #include <linux/slab.h>
65 #include <linux/delay.h>
66 #include <linux/fb.h>
67 #include <linux/pci.h>
68 #include <linux/init.h>
69 #ifdef CONFIG_TOSHIBA
70 #include <linux/toshiba.h>
71 extern int tosh_smm(SMMRegisters *regs);
72 #endif
73
74 #include <asm/io.h>
75 #include <asm/irq.h>
76 #include <asm/pgtable.h>
77 #include <asm/system.h>
78 #include <asm/uaccess.h>
79
80 #ifdef CONFIG_MTRR
81 #include <asm/mtrr.h>
82 #endif
83
84 #include <video/vga.h>
85 #include <video/neomagic.h>
86
87 #define NEOFB_VERSION "0.4.2"
88
89 /* --------------------------------------------------------------------- */
90
91 static int internal;
92 static int external;
93 static int libretto;
94 static int nostretch;
95 static int nopciburst;
96 static char *mode_option __devinitdata = NULL;
97
98 #ifdef MODULE
99
100 MODULE_AUTHOR("(c) 2001-2002 Denis Oliver Kropp <dok@convergence.de>");
101 MODULE_LICENSE("GPL");
102 MODULE_DESCRIPTION("FBDev driver for NeoMagic PCI Chips");
103 module_param(internal, bool, 0);
104 MODULE_PARM_DESC(internal, "Enable output on internal LCD Display.");
105 module_param(external, bool, 0);
106 MODULE_PARM_DESC(external, "Enable output on external CRT.");
107 module_param(libretto, bool, 0);
108 MODULE_PARM_DESC(libretto, "Force Libretto 100/110 800x480 LCD.");
109 module_param(nostretch, bool, 0);
110 MODULE_PARM_DESC(nostretch,
111 "Disable stretching of modes smaller than LCD.");
112 module_param(nopciburst, bool, 0);
113 MODULE_PARM_DESC(nopciburst, "Disable PCI burst mode.");
114 module_param(mode_option, charp, 0);
115 MODULE_PARM_DESC(mode_option, "Preferred video mode ('640x480-8@60', etc)");
116
117 #endif
118
119
120 /* --------------------------------------------------------------------- */
121
122 static biosMode bios8[] = {
123 {320, 240, 0x40},
124 {300, 400, 0x42},
125 {640, 400, 0x20},
126 {640, 480, 0x21},
127 {800, 600, 0x23},
128 {1024, 768, 0x25},
129 };
130
131 static biosMode bios16[] = {
132 {320, 200, 0x2e},
133 {320, 240, 0x41},
134 {300, 400, 0x43},
135 {640, 480, 0x31},
136 {800, 600, 0x34},
137 {1024, 768, 0x37},
138 };
139
140 static biosMode bios24[] = {
141 {640, 480, 0x32},
142 {800, 600, 0x35},
143 {1024, 768, 0x38}
144 };
145
146 #ifdef NO_32BIT_SUPPORT_YET
147 /* FIXME: guessed values, wrong */
148 static biosMode bios32[] = {
149 {640, 480, 0x33},
150 {800, 600, 0x36},
151 {1024, 768, 0x39}
152 };
153 #endif
154
155 static inline void write_le32(int regindex, u32 val, const struct neofb_par *par)
156 {
157 writel(val, par->neo2200 + par->cursorOff + regindex);
158 }
159
160 static int neoFindMode(int xres, int yres, int depth)
161 {
162 int xres_s;
163 int i, size;
164 biosMode *mode;
165
166 switch (depth) {
167 case 8:
168 size = sizeof(bios8) / sizeof(biosMode);
169 mode = bios8;
170 break;
171 case 16:
172 size = sizeof(bios16) / sizeof(biosMode);
173 mode = bios16;
174 break;
175 case 24:
176 size = sizeof(bios24) / sizeof(biosMode);
177 mode = bios24;
178 break;
179 #ifdef NO_32BIT_SUPPORT_YET
180 case 32:
181 size = sizeof(bios32) / sizeof(biosMode);
182 mode = bios32;
183 break;
184 #endif
185 default:
186 return 0;
187 }
188
189 for (i = 0; i < size; i++) {
190 if (xres <= mode[i].x_res) {
191 xres_s = mode[i].x_res;
192 for (; i < size; i++) {
193 if (mode[i].x_res != xres_s)
194 return mode[i - 1].mode;
195 if (yres <= mode[i].y_res)
196 return mode[i].mode;
197 }
198 }
199 }
200 return mode[size - 1].mode;
201 }
202
203 /*
204 * neoCalcVCLK --
205 *
206 * Determine the closest clock frequency to the one requested.
207 */
208 #define REF_FREQ 0xe517 /* 14.31818 in 20.12 fixed point */
209 #define MAX_N 127
210 #define MAX_D 31
211 #define MAX_F 1
212
213 static void neoCalcVCLK(const struct fb_info *info,
214 struct neofb_par *par, long freq)
215 {
216 int n, d, f;
217 int n_best = 0, d_best = 0, f_best = 0;
218 long f_best_diff = (0x7ffff << 12); /* 20.12 */
219 long f_target = (freq << 12) / 1000; /* 20.12 */
220
221 for (f = 0; f <= MAX_F; f++)
222 for (n = 0; n <= MAX_N; n++)
223 for (d = 0; d <= MAX_D; d++) {
224 long f_out; /* 20.12 */
225 long f_diff; /* 20.12 */
226
227 f_out =
228 ((((n + 1) << 12) / ((d +
229 1) *
230 (1 << f))) >> 12)
231 * REF_FREQ;
232 f_diff = abs(f_out - f_target);
233 if (f_diff < f_best_diff) {
234 f_best_diff = f_diff;
235 n_best = n;
236 d_best = d;
237 f_best = f;
238 }
239 }
240
241 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2200 ||
242 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2230 ||
243 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2360 ||
244 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2380) {
245 /* NOT_DONE: We are trying the full range of the 2200 clock.
246 We should be able to try n up to 2047 */
247 par->VCLK3NumeratorLow = n_best;
248 par->VCLK3NumeratorHigh = (f_best << 7);
249 } else
250 par->VCLK3NumeratorLow = n_best | (f_best << 7);
251
252 par->VCLK3Denominator = d_best;
253
254 #ifdef NEOFB_DEBUG
255 printk("neoVCLK: f:%d NumLow=%d NumHi=%d Den=%d Df=%d\n",
256 f_target >> 12,
257 par->VCLK3NumeratorLow,
258 par->VCLK3NumeratorHigh,
259 par->VCLK3Denominator, f_best_diff >> 12);
260 #endif
261 }
262
263 /*
264 * vgaHWInit --
265 * Handle the initialization, etc. of a screen.
266 * Return FALSE on failure.
267 */
268
269 static int vgaHWInit(const struct fb_var_screeninfo *var,
270 const struct fb_info *info,
271 struct neofb_par *par, struct xtimings *timings)
272 {
273 par->MiscOutReg = 0x23;
274
275 if (!(timings->sync & FB_SYNC_HOR_HIGH_ACT))
276 par->MiscOutReg |= 0x40;
277
278 if (!(timings->sync & FB_SYNC_VERT_HIGH_ACT))
279 par->MiscOutReg |= 0x80;
280
281 /*
282 * Time Sequencer
283 */
284 par->Sequencer[0] = 0x00;
285 par->Sequencer[1] = 0x01;
286 par->Sequencer[2] = 0x0F;
287 par->Sequencer[3] = 0x00; /* Font select */
288 par->Sequencer[4] = 0x0E; /* Misc */
289
290 /*
291 * CRTC Controller
292 */
293 par->CRTC[0] = (timings->HTotal >> 3) - 5;
294 par->CRTC[1] = (timings->HDisplay >> 3) - 1;
295 par->CRTC[2] = (timings->HDisplay >> 3) - 1;
296 par->CRTC[3] = (((timings->HTotal >> 3) - 1) & 0x1F) | 0x80;
297 par->CRTC[4] = (timings->HSyncStart >> 3);
298 par->CRTC[5] = ((((timings->HTotal >> 3) - 1) & 0x20) << 2)
299 | (((timings->HSyncEnd >> 3)) & 0x1F);
300 par->CRTC[6] = (timings->VTotal - 2) & 0xFF;
301 par->CRTC[7] = (((timings->VTotal - 2) & 0x100) >> 8)
302 | (((timings->VDisplay - 1) & 0x100) >> 7)
303 | ((timings->VSyncStart & 0x100) >> 6)
304 | (((timings->VDisplay - 1) & 0x100) >> 5)
305 | 0x10 | (((timings->VTotal - 2) & 0x200) >> 4)
306 | (((timings->VDisplay - 1) & 0x200) >> 3)
307 | ((timings->VSyncStart & 0x200) >> 2);
308 par->CRTC[8] = 0x00;
309 par->CRTC[9] = (((timings->VDisplay - 1) & 0x200) >> 4) | 0x40;
310
311 if (timings->dblscan)
312 par->CRTC[9] |= 0x80;
313
314 par->CRTC[10] = 0x00;
315 par->CRTC[11] = 0x00;
316 par->CRTC[12] = 0x00;
317 par->CRTC[13] = 0x00;
318 par->CRTC[14] = 0x00;
319 par->CRTC[15] = 0x00;
320 par->CRTC[16] = timings->VSyncStart & 0xFF;
321 par->CRTC[17] = (timings->VSyncEnd & 0x0F) | 0x20;
322 par->CRTC[18] = (timings->VDisplay - 1) & 0xFF;
323 par->CRTC[19] = var->xres_virtual >> 4;
324 par->CRTC[20] = 0x00;
325 par->CRTC[21] = (timings->VDisplay - 1) & 0xFF;
326 par->CRTC[22] = (timings->VTotal - 1) & 0xFF;
327 par->CRTC[23] = 0xC3;
328 par->CRTC[24] = 0xFF;
329
330 /*
331 * are these unnecessary?
332 * vgaHWHBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN | KGA_ENABLE_ON_ZERO);
333 * vgaHWVBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN | KGA_ENABLE_ON_ZERO);
334 */
335
336 /*
337 * Graphics Display Controller
338 */
339 par->Graphics[0] = 0x00;
340 par->Graphics[1] = 0x00;
341 par->Graphics[2] = 0x00;
342 par->Graphics[3] = 0x00;
343 par->Graphics[4] = 0x00;
344 par->Graphics[5] = 0x40;
345 par->Graphics[6] = 0x05; /* only map 64k VGA memory !!!! */
346 par->Graphics[7] = 0x0F;
347 par->Graphics[8] = 0xFF;
348
349
350 par->Attribute[0] = 0x00; /* standard colormap translation */
351 par->Attribute[1] = 0x01;
352 par->Attribute[2] = 0x02;
353 par->Attribute[3] = 0x03;
354 par->Attribute[4] = 0x04;
355 par->Attribute[5] = 0x05;
356 par->Attribute[6] = 0x06;
357 par->Attribute[7] = 0x07;
358 par->Attribute[8] = 0x08;
359 par->Attribute[9] = 0x09;
360 par->Attribute[10] = 0x0A;
361 par->Attribute[11] = 0x0B;
362 par->Attribute[12] = 0x0C;
363 par->Attribute[13] = 0x0D;
364 par->Attribute[14] = 0x0E;
365 par->Attribute[15] = 0x0F;
366 par->Attribute[16] = 0x41;
367 par->Attribute[17] = 0xFF;
368 par->Attribute[18] = 0x0F;
369 par->Attribute[19] = 0x00;
370 par->Attribute[20] = 0x00;
371 return 0;
372 }
373
374 static void vgaHWLock(struct vgastate *state)
375 {
376 /* Protect CRTC[0-7] */
377 vga_wcrt(state->vgabase, 0x11, vga_rcrt(state->vgabase, 0x11) | 0x80);
378 }
379
380 static void vgaHWUnlock(void)
381 {
382 /* Unprotect CRTC[0-7] */
383 vga_wcrt(NULL, 0x11, vga_rcrt(NULL, 0x11) & ~0x80);
384 }
385
386 static void neoLock(struct vgastate *state)
387 {
388 vga_wgfx(state->vgabase, 0x09, 0x00);
389 vgaHWLock(state);
390 }
391
392 static void neoUnlock(void)
393 {
394 vgaHWUnlock();
395 vga_wgfx(NULL, 0x09, 0x26);
396 }
397
398 /*
399 * VGA Palette management
400 */
401 static int paletteEnabled = 0;
402
403 static inline void VGAenablePalette(void)
404 {
405 vga_r(NULL, VGA_IS1_RC);
406 vga_w(NULL, VGA_ATT_W, 0x00);
407 paletteEnabled = 1;
408 }
409
410 static inline void VGAdisablePalette(void)
411 {
412 vga_r(NULL, VGA_IS1_RC);
413 vga_w(NULL, VGA_ATT_W, 0x20);
414 paletteEnabled = 0;
415 }
416
417 static inline void VGAwATTR(u8 index, u8 value)
418 {
419 if (paletteEnabled)
420 index &= ~0x20;
421 else
422 index |= 0x20;
423
424 vga_r(NULL, VGA_IS1_RC);
425 vga_wattr(NULL, index, value);
426 }
427
428 static void vgaHWProtect(int on)
429 {
430 unsigned char tmp;
431
432 if (on) {
433 /*
434 * Turn off screen and disable sequencer.
435 */
436 tmp = vga_rseq(NULL, 0x01);
437 vga_wseq(NULL, 0x00, 0x01); /* Synchronous Reset */
438 vga_wseq(NULL, 0x01, tmp | 0x20); /* disable the display */
439
440 VGAenablePalette();
441 } else {
442 /*
443 * Reenable sequencer, then turn on screen.
444 */
445 tmp = vga_rseq(NULL, 0x01);
446 vga_wseq(NULL, 0x01, tmp & ~0x20); /* reenable display */
447 vga_wseq(NULL, 0x00, 0x03); /* clear synchronousreset */
448
449 VGAdisablePalette();
450 }
451 }
452
453 static void vgaHWRestore(const struct fb_info *info,
454 const struct neofb_par *par)
455 {
456 int i;
457
458 vga_w(NULL, VGA_MIS_W, par->MiscOutReg);
459
460 for (i = 1; i < 5; i++)
461 vga_wseq(NULL, i, par->Sequencer[i]);
462
463 /* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 or CRTC[17] */
464 vga_wcrt(NULL, 17, par->CRTC[17] & ~0x80);
465
466 for (i = 0; i < 25; i++)
467 vga_wcrt(NULL, i, par->CRTC[i]);
468
469 for (i = 0; i < 9; i++)
470 vga_wgfx(NULL, i, par->Graphics[i]);
471
472 VGAenablePalette();
473
474 for (i = 0; i < 21; i++)
475 VGAwATTR(i, par->Attribute[i]);
476
477 VGAdisablePalette();
478 }
479
480
481 /* -------------------- Hardware specific routines ------------------------- */
482
483 /*
484 * Hardware Acceleration for Neo2200+
485 */
486 static inline int neo2200_sync(struct fb_info *info)
487 {
488 struct neofb_par *par = (struct neofb_par *) info->par;
489 int waitcycles;
490
491 while (readl(&par->neo2200->bltStat) & 1)
492 waitcycles++;
493 return 0;
494 }
495
496 static inline void neo2200_wait_fifo(struct fb_info *info,
497 int requested_fifo_space)
498 {
499 // ndev->neo.waitfifo_calls++;
500 // ndev->neo.waitfifo_sum += requested_fifo_space;
501
502 /* FIXME: does not work
503 if (neo_fifo_space < requested_fifo_space)
504 {
505 neo_fifo_waitcycles++;
506
507 while (1)
508 {
509 neo_fifo_space = (neo2200->bltStat >> 8);
510 if (neo_fifo_space >= requested_fifo_space)
511 break;
512 }
513 }
514 else
515 {
516 neo_fifo_cache_hits++;
517 }
518
519 neo_fifo_space -= requested_fifo_space;
520 */
521
522 neo2200_sync(info);
523 }
524
525 static inline void neo2200_accel_init(struct fb_info *info,
526 struct fb_var_screeninfo *var)
527 {
528 struct neofb_par *par = (struct neofb_par *) info->par;
529 Neo2200 __iomem *neo2200 = par->neo2200;
530 u32 bltMod, pitch;
531
532 neo2200_sync(info);
533
534 switch (var->bits_per_pixel) {
535 case 8:
536 bltMod = NEO_MODE1_DEPTH8;
537 pitch = var->xres_virtual;
538 break;
539 case 15:
540 case 16:
541 bltMod = NEO_MODE1_DEPTH16;
542 pitch = var->xres_virtual * 2;
543 break;
544 case 24:
545 bltMod = NEO_MODE1_DEPTH24;
546 pitch = var->xres_virtual * 3;
547 break;
548 default:
549 printk(KERN_ERR
550 "neofb: neo2200_accel_init: unexpected bits per pixel!\n");
551 return;
552 }
553
554 writel(bltMod << 16, &neo2200->bltStat);
555 writel((pitch << 16) | pitch, &neo2200->pitch);
556 }
557
558 /* --------------------------------------------------------------------- */
559
560 static int
561 neofb_open(struct fb_info *info, int user)
562 {
563 struct neofb_par *par = (struct neofb_par *) info->par;
564 int cnt = atomic_read(&par->ref_count);
565
566 if (!cnt) {
567 memset(&par->state, 0, sizeof(struct vgastate));
568 par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS;
569 save_vga(&par->state);
570 }
571 atomic_inc(&par->ref_count);
572 return 0;
573 }
574
575 static int
576 neofb_release(struct fb_info *info, int user)
577 {
578 struct neofb_par *par = (struct neofb_par *) info->par;
579 int cnt = atomic_read(&par->ref_count);
580
581 if (!cnt)
582 return -EINVAL;
583 if (cnt == 1) {
584 restore_vga(&par->state);
585 }
586 atomic_dec(&par->ref_count);
587 return 0;
588 }
589
590 static int
591 neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
592 {
593 struct neofb_par *par = (struct neofb_par *) info->par;
594 unsigned int pixclock = var->pixclock;
595 struct xtimings timings;
596 int memlen, vramlen;
597 int mode_ok = 0;
598
599 DBG("neofb_check_var");
600
601 if (!pixclock)
602 pixclock = 10000; /* 10ns = 100MHz */
603 timings.pixclock = 1000000000 / pixclock;
604 if (timings.pixclock < 1)
605 timings.pixclock = 1;
606
607 if (timings.pixclock > par->maxClock)
608 return -EINVAL;
609
610 timings.dblscan = var->vmode & FB_VMODE_DOUBLE;
611 timings.interlaced = var->vmode & FB_VMODE_INTERLACED;
612 timings.HDisplay = var->xres;
613 timings.HSyncStart = timings.HDisplay + var->right_margin;
614 timings.HSyncEnd = timings.HSyncStart + var->hsync_len;
615 timings.HTotal = timings.HSyncEnd + var->left_margin;
616 timings.VDisplay = var->yres;
617 timings.VSyncStart = timings.VDisplay + var->lower_margin;
618 timings.VSyncEnd = timings.VSyncStart + var->vsync_len;
619 timings.VTotal = timings.VSyncEnd + var->upper_margin;
620 timings.sync = var->sync;
621
622 /* Is the mode larger than the LCD panel? */
623 if (par->internal_display &&
624 ((var->xres > par->NeoPanelWidth) ||
625 (var->yres > par->NeoPanelHeight))) {
626 printk(KERN_INFO
627 "Mode (%dx%d) larger than the LCD panel (%dx%d)\n",
628 var->xres, var->yres, par->NeoPanelWidth,
629 par->NeoPanelHeight);
630 return -EINVAL;
631 }
632
633 /* Is the mode one of the acceptable sizes? */
634 if (!par->internal_display)
635 mode_ok = 1;
636 else {
637 switch (var->xres) {
638 case 1280:
639 if (var->yres == 1024)
640 mode_ok = 1;
641 break;
642 case 1024:
643 if (var->yres == 768)
644 mode_ok = 1;
645 break;
646 case 800:
647 if (var->yres == (par->libretto ? 480 : 600))
648 mode_ok = 1;
649 break;
650 case 640:
651 if (var->yres == 480)
652 mode_ok = 1;
653 break;
654 }
655 }
656
657 if (!mode_ok) {
658 printk(KERN_INFO
659 "Mode (%dx%d) won't display properly on LCD\n",
660 var->xres, var->yres);
661 return -EINVAL;
662 }
663
664 var->red.msb_right = 0;
665 var->green.msb_right = 0;
666 var->blue.msb_right = 0;
667
668 switch (var->bits_per_pixel) {
669 case 8: /* PSEUDOCOLOUR, 256 */
670 var->transp.offset = 0;
671 var->transp.length = 0;
672 var->red.offset = 0;
673 var->red.length = 8;
674 var->green.offset = 0;
675 var->green.length = 8;
676 var->blue.offset = 0;
677 var->blue.length = 8;
678 break;
679
680 case 16: /* DIRECTCOLOUR, 64k */
681 var->transp.offset = 0;
682 var->transp.length = 0;
683 var->red.offset = 11;
684 var->red.length = 5;
685 var->green.offset = 5;
686 var->green.length = 6;
687 var->blue.offset = 0;
688 var->blue.length = 5;
689 break;
690
691 case 24: /* TRUECOLOUR, 16m */
692 var->transp.offset = 0;
693 var->transp.length = 0;
694 var->red.offset = 16;
695 var->red.length = 8;
696 var->green.offset = 8;
697 var->green.length = 8;
698 var->blue.offset = 0;
699 var->blue.length = 8;
700 break;
701
702 #ifdef NO_32BIT_SUPPORT_YET
703 case 32: /* TRUECOLOUR, 16m */
704 var->transp.offset = 24;
705 var->transp.length = 8;
706 var->red.offset = 16;
707 var->red.length = 8;
708 var->green.offset = 8;
709 var->green.length = 8;
710 var->blue.offset = 0;
711 var->blue.length = 8;
712 break;
713 #endif
714 default:
715 printk(KERN_WARNING "neofb: no support for %dbpp\n",
716 var->bits_per_pixel);
717 return -EINVAL;
718 }
719
720 vramlen = info->fix.smem_len;
721 if (vramlen > 4 * 1024 * 1024)
722 vramlen = 4 * 1024 * 1024;
723
724 if (var->yres_virtual < var->yres)
725 var->yres_virtual = var->yres;
726 if (var->xres_virtual < var->xres)
727 var->xres_virtual = var->xres;
728
729 memlen = var->xres_virtual * var->bits_per_pixel * var->yres_virtual >> 3;
730
731 if (memlen > vramlen) {
732 var->yres_virtual = vramlen * 8 / (var->xres_virtual *
733 var->bits_per_pixel);
734 memlen = var->xres_virtual * var->bits_per_pixel *
735 var->yres_virtual / 8;
736 }
737
738 /* we must round yres/xres down, we already rounded y/xres_virtual up
739 if it was possible. We should return -EINVAL, but I disagree */
740 if (var->yres_virtual < var->yres)
741 var->yres = var->yres_virtual;
742 if (var->xres_virtual < var->xres)
743 var->xres = var->xres_virtual;
744 if (var->xoffset + var->xres > var->xres_virtual)
745 var->xoffset = var->xres_virtual - var->xres;
746 if (var->yoffset + var->yres > var->yres_virtual)
747 var->yoffset = var->yres_virtual - var->yres;
748
749 var->nonstd = 0;
750 var->height = -1;
751 var->width = -1;
752
753 if (var->bits_per_pixel >= 24 || !par->neo2200)
754 var->accel_flags &= ~FB_ACCELF_TEXT;
755 return 0;
756 }
757
758 static int neofb_set_par(struct fb_info *info)
759 {
760 struct neofb_par *par = (struct neofb_par *) info->par;
761 struct xtimings timings;
762 unsigned char temp;
763 int i, clock_hi = 0;
764 int lcd_stretch;
765 int hoffset, voffset;
766
767 DBG("neofb_set_par");
768
769 neoUnlock();
770
771 vgaHWProtect(1); /* Blank the screen */
772
773 timings.dblscan = info->var.vmode & FB_VMODE_DOUBLE;
774 timings.interlaced = info->var.vmode & FB_VMODE_INTERLACED;
775 timings.HDisplay = info->var.xres;
776 timings.HSyncStart = timings.HDisplay + info->var.right_margin;
777 timings.HSyncEnd = timings.HSyncStart + info->var.hsync_len;
778 timings.HTotal = timings.HSyncEnd + info->var.left_margin;
779 timings.VDisplay = info->var.yres;
780 timings.VSyncStart = timings.VDisplay + info->var.lower_margin;
781 timings.VSyncEnd = timings.VSyncStart + info->var.vsync_len;
782 timings.VTotal = timings.VSyncEnd + info->var.upper_margin;
783 timings.sync = info->var.sync;
784 timings.pixclock = PICOS2KHZ(info->var.pixclock);
785
786 if (timings.pixclock < 1)
787 timings.pixclock = 1;
788
789 /*
790 * This will allocate the datastructure and initialize all of the
791 * generic VGA registers.
792 */
793
794 if (vgaHWInit(&info->var, info, par, &timings))
795 return -EINVAL;
796
797 /*
798 * The default value assigned by vgaHW.c is 0x41, but this does
799 * not work for NeoMagic.
800 */
801 par->Attribute[16] = 0x01;
802
803 switch (info->var.bits_per_pixel) {
804 case 8:
805 par->CRTC[0x13] = info->var.xres_virtual >> 3;
806 par->ExtCRTOffset = info->var.xres_virtual >> 11;
807 par->ExtColorModeSelect = 0x11;
808 break;
809 case 16:
810 par->CRTC[0x13] = info->var.xres_virtual >> 2;
811 par->ExtCRTOffset = info->var.xres_virtual >> 10;
812 par->ExtColorModeSelect = 0x13;
813 break;
814 case 24:
815 par->CRTC[0x13] = (info->var.xres_virtual * 3) >> 3;
816 par->ExtCRTOffset = (info->var.xres_virtual * 3) >> 11;
817 par->ExtColorModeSelect = 0x14;
818 break;
819 #ifdef NO_32BIT_SUPPORT_YET
820 case 32: /* FIXME: guessed values */
821 par->CRTC[0x13] = info->var.xres_virtual >> 1;
822 par->ExtCRTOffset = info->var.xres_virtual >> 9;
823 par->ExtColorModeSelect = 0x15;
824 break;
825 #endif
826 default:
827 break;
828 }
829
830 par->ExtCRTDispAddr = 0x10;
831
832 /* Vertical Extension */
833 par->VerticalExt = (((timings.VTotal - 2) & 0x400) >> 10)
834 | (((timings.VDisplay - 1) & 0x400) >> 9)
835 | (((timings.VSyncStart) & 0x400) >> 8)
836 | (((timings.VSyncStart) & 0x400) >> 7);
837
838 /* Fast write bursts on unless disabled. */
839 if (par->pci_burst)
840 par->SysIfaceCntl1 = 0x30;
841 else
842 par->SysIfaceCntl1 = 0x00;
843
844 par->SysIfaceCntl2 = 0xc0; /* VESA Bios sets this to 0x80! */
845
846 /* Enable any user specified display devices. */
847 par->PanelDispCntlReg1 = 0x00;
848 if (par->internal_display)
849 par->PanelDispCntlReg1 |= 0x02;
850 if (par->external_display)
851 par->PanelDispCntlReg1 |= 0x01;
852
853 /* If the user did not specify any display devices, then... */
854 if (par->PanelDispCntlReg1 == 0x00) {
855 /* Default to internal (i.e., LCD) only. */
856 par->PanelDispCntlReg1 |= 0x02;
857 }
858
859 /* If we are using a fixed mode, then tell the chip we are. */
860 switch (info->var.xres) {
861 case 1280:
862 par->PanelDispCntlReg1 |= 0x60;
863 break;
864 case 1024:
865 par->PanelDispCntlReg1 |= 0x40;
866 break;
867 case 800:
868 par->PanelDispCntlReg1 |= 0x20;
869 break;
870 case 640:
871 default:
872 break;
873 }
874
875 /* Setup shadow register locking. */
876 switch (par->PanelDispCntlReg1 & 0x03) {
877 case 0x01: /* External CRT only mode: */
878 par->GeneralLockReg = 0x00;
879 /* We need to program the VCLK for external display only mode. */
880 par->ProgramVCLK = 1;
881 break;
882 case 0x02: /* Internal LCD only mode: */
883 case 0x03: /* Simultaneous internal/external (LCD/CRT) mode: */
884 par->GeneralLockReg = 0x01;
885 /* Don't program the VCLK when using the LCD. */
886 par->ProgramVCLK = 0;
887 break;
888 }
889
890 /*
891 * If the screen is to be stretched, turn on stretching for the
892 * various modes.
893 *
894 * OPTION_LCD_STRETCH means stretching should be turned off!
895 */
896 par->PanelDispCntlReg2 = 0x00;
897 par->PanelDispCntlReg3 = 0x00;
898
899 if (par->lcd_stretch && (par->PanelDispCntlReg1 == 0x02) && /* LCD only */
900 (info->var.xres != par->NeoPanelWidth)) {
901 switch (info->var.xres) {
902 case 320: /* Needs testing. KEM -- 24 May 98 */
903 case 400: /* Needs testing. KEM -- 24 May 98 */
904 case 640:
905 case 800:
906 case 1024:
907 lcd_stretch = 1;
908 par->PanelDispCntlReg2 |= 0xC6;
909 break;
910 default:
911 lcd_stretch = 0;
912 /* No stretching in these modes. */
913 }
914 } else
915 lcd_stretch = 0;
916
917 /*
918 * If the screen is to be centerd, turn on the centering for the
919 * various modes.
920 */
921 par->PanelVertCenterReg1 = 0x00;
922 par->PanelVertCenterReg2 = 0x00;
923 par->PanelVertCenterReg3 = 0x00;
924 par->PanelVertCenterReg4 = 0x00;
925 par->PanelVertCenterReg5 = 0x00;
926 par->PanelHorizCenterReg1 = 0x00;
927 par->PanelHorizCenterReg2 = 0x00;
928 par->PanelHorizCenterReg3 = 0x00;
929 par->PanelHorizCenterReg4 = 0x00;
930 par->PanelHorizCenterReg5 = 0x00;
931
932
933 if (par->PanelDispCntlReg1 & 0x02) {
934 if (info->var.xres == par->NeoPanelWidth) {
935 /*
936 * No centering required when the requested display width
937 * equals the panel width.
938 */
939 } else {
940 par->PanelDispCntlReg2 |= 0x01;
941 par->PanelDispCntlReg3 |= 0x10;
942
943 /* Calculate the horizontal and vertical offsets. */
944 if (!lcd_stretch) {
945 hoffset =
946 ((par->NeoPanelWidth -
947 info->var.xres) >> 4) - 1;
948 voffset =
949 ((par->NeoPanelHeight -
950 info->var.yres) >> 1) - 2;
951 } else {
952 /* Stretched modes cannot be centered. */
953 hoffset = 0;
954 voffset = 0;
955 }
956
957 switch (info->var.xres) {
958 case 320: /* Needs testing. KEM -- 24 May 98 */
959 par->PanelHorizCenterReg3 = hoffset;
960 par->PanelVertCenterReg2 = voffset;
961 break;
962 case 400: /* Needs testing. KEM -- 24 May 98 */
963 par->PanelHorizCenterReg4 = hoffset;
964 par->PanelVertCenterReg1 = voffset;
965 break;
966 case 640:
967 par->PanelHorizCenterReg1 = hoffset;
968 par->PanelVertCenterReg3 = voffset;
969 break;
970 case 800:
971 par->PanelHorizCenterReg2 = hoffset;
972 par->PanelVertCenterReg4 = voffset;
973 break;
974 case 1024:
975 par->PanelHorizCenterReg5 = hoffset;
976 par->PanelVertCenterReg5 = voffset;
977 break;
978 case 1280:
979 default:
980 /* No centering in these modes. */
981 break;
982 }
983 }
984 }
985
986 par->biosMode =
987 neoFindMode(info->var.xres, info->var.yres,
988 info->var.bits_per_pixel);
989
990 /*
991 * Calculate the VCLK that most closely matches the requested dot
992 * clock.
993 */
994 neoCalcVCLK(info, par, timings.pixclock);
995
996 /* Since we program the clocks ourselves, always use VCLK3. */
997 par->MiscOutReg |= 0x0C;
998
999 /* alread unlocked above */
1000 /* BOGUS vga_wgfx(NULL, 0x09, 0x26); */
1001
1002 /* don't know what this is, but it's 0 from bootup anyway */
1003 vga_wgfx(NULL, 0x15, 0x00);
1004
1005 /* was set to 0x01 by my bios in text and vesa modes */
1006 vga_wgfx(NULL, 0x0A, par->GeneralLockReg);
1007
1008 /*
1009 * The color mode needs to be set before calling vgaHWRestore
1010 * to ensure the DAC is initialized properly.
1011 *
1012 * NOTE: Make sure we don't change bits make sure we don't change
1013 * any reserved bits.
1014 */
1015 temp = vga_rgfx(NULL, 0x90);
1016 switch (info->fix.accel) {
1017 case FB_ACCEL_NEOMAGIC_NM2070:
1018 temp &= 0xF0; /* Save bits 7:4 */
1019 temp |= (par->ExtColorModeSelect & ~0xF0);
1020 break;
1021 case FB_ACCEL_NEOMAGIC_NM2090:
1022 case FB_ACCEL_NEOMAGIC_NM2093:
1023 case FB_ACCEL_NEOMAGIC_NM2097:
1024 case FB_ACCEL_NEOMAGIC_NM2160:
1025 case FB_ACCEL_NEOMAGIC_NM2200:
1026 case FB_ACCEL_NEOMAGIC_NM2230:
1027 case FB_ACCEL_NEOMAGIC_NM2360:
1028 case FB_ACCEL_NEOMAGIC_NM2380:
1029 temp &= 0x70; /* Save bits 6:4 */
1030 temp |= (par->ExtColorModeSelect & ~0x70);
1031 break;
1032 }
1033
1034 vga_wgfx(NULL, 0x90, temp);
1035
1036 /*
1037 * In some rare cases a lockup might occur if we don't delay
1038 * here. (Reported by Miles Lane)
1039 */
1040 //mdelay(200);
1041
1042 /*
1043 * Disable horizontal and vertical graphics and text expansions so
1044 * that vgaHWRestore works properly.
1045 */
1046 temp = vga_rgfx(NULL, 0x25);
1047 temp &= 0x39;
1048 vga_wgfx(NULL, 0x25, temp);
1049
1050 /*
1051 * Sleep for 200ms to make sure that the two operations above have
1052 * had time to take effect.
1053 */
1054 mdelay(200);
1055
1056 /*
1057 * This function handles restoring the generic VGA registers. */
1058 vgaHWRestore(info, par);
1059
1060 /* linear colormap for non palettized modes */
1061 switch (info->var.bits_per_pixel) {
1062 case 8:
1063 /* PseudoColor, 256 */
1064 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
1065 break;
1066 case 16:
1067 /* TrueColor, 64k */
1068 info->fix.visual = FB_VISUAL_TRUECOLOR;
1069
1070 for (i = 0; i < 64; i++) {
1071 outb(i, 0x3c8);
1072
1073 outb(i << 1, 0x3c9);
1074 outb(i, 0x3c9);
1075 outb(i << 1, 0x3c9);
1076 }
1077 break;
1078 case 24:
1079 #ifdef NO_32BIT_SUPPORT_YET
1080 case 32:
1081 #endif
1082 /* TrueColor, 16m */
1083 info->fix.visual = FB_VISUAL_TRUECOLOR;
1084
1085 for (i = 0; i < 256; i++) {
1086 outb(i, 0x3c8);
1087
1088 outb(i, 0x3c9);
1089 outb(i, 0x3c9);
1090 outb(i, 0x3c9);
1091 }
1092 break;
1093 }
1094
1095 vga_wgfx(NULL, 0x0E, par->ExtCRTDispAddr);
1096 vga_wgfx(NULL, 0x0F, par->ExtCRTOffset);
1097 temp = vga_rgfx(NULL, 0x10);
1098 temp &= 0x0F; /* Save bits 3:0 */
1099 temp |= (par->SysIfaceCntl1 & ~0x0F); /* VESA Bios sets bit 1! */
1100 vga_wgfx(NULL, 0x10, temp);
1101
1102 vga_wgfx(NULL, 0x11, par->SysIfaceCntl2);
1103 vga_wgfx(NULL, 0x15, 0 /*par->SingleAddrPage */ );
1104 vga_wgfx(NULL, 0x16, 0 /*par->DualAddrPage */ );
1105
1106 temp = vga_rgfx(NULL, 0x20);
1107 switch (info->fix.accel) {
1108 case FB_ACCEL_NEOMAGIC_NM2070:
1109 temp &= 0xFC; /* Save bits 7:2 */
1110 temp |= (par->PanelDispCntlReg1 & ~0xFC);
1111 break;
1112 case FB_ACCEL_NEOMAGIC_NM2090:
1113 case FB_ACCEL_NEOMAGIC_NM2093:
1114 case FB_ACCEL_NEOMAGIC_NM2097:
1115 case FB_ACCEL_NEOMAGIC_NM2160:
1116 temp &= 0xDC; /* Save bits 7:6,4:2 */
1117 temp |= (par->PanelDispCntlReg1 & ~0xDC);
1118 break;
1119 case FB_ACCEL_NEOMAGIC_NM2200:
1120 case FB_ACCEL_NEOMAGIC_NM2230:
1121 case FB_ACCEL_NEOMAGIC_NM2360:
1122 case FB_ACCEL_NEOMAGIC_NM2380:
1123 temp &= 0x98; /* Save bits 7,4:3 */
1124 temp |= (par->PanelDispCntlReg1 & ~0x98);
1125 break;
1126 }
1127 vga_wgfx(NULL, 0x20, temp);
1128
1129 temp = vga_rgfx(NULL, 0x25);
1130 temp &= 0x38; /* Save bits 5:3 */
1131 temp |= (par->PanelDispCntlReg2 & ~0x38);
1132 vga_wgfx(NULL, 0x25, temp);
1133
1134 if (info->fix.accel != FB_ACCEL_NEOMAGIC_NM2070) {
1135 temp = vga_rgfx(NULL, 0x30);
1136 temp &= 0xEF; /* Save bits 7:5 and bits 3:0 */
1137 temp |= (par->PanelDispCntlReg3 & ~0xEF);
1138 vga_wgfx(NULL, 0x30, temp);
1139 }
1140
1141 vga_wgfx(NULL, 0x28, par->PanelVertCenterReg1);
1142 vga_wgfx(NULL, 0x29, par->PanelVertCenterReg2);
1143 vga_wgfx(NULL, 0x2a, par->PanelVertCenterReg3);
1144
1145 if (info->fix.accel != FB_ACCEL_NEOMAGIC_NM2070) {
1146 vga_wgfx(NULL, 0x32, par->PanelVertCenterReg4);
1147 vga_wgfx(NULL, 0x33, par->PanelHorizCenterReg1);
1148 vga_wgfx(NULL, 0x34, par->PanelHorizCenterReg2);
1149 vga_wgfx(NULL, 0x35, par->PanelHorizCenterReg3);
1150 }
1151
1152 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2160)
1153 vga_wgfx(NULL, 0x36, par->PanelHorizCenterReg4);
1154
1155 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2200 ||
1156 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2230 ||
1157 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2360 ||
1158 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2380) {
1159 vga_wgfx(NULL, 0x36, par->PanelHorizCenterReg4);
1160 vga_wgfx(NULL, 0x37, par->PanelVertCenterReg5);
1161 vga_wgfx(NULL, 0x38, par->PanelHorizCenterReg5);
1162
1163 clock_hi = 1;
1164 }
1165
1166 /* Program VCLK3 if needed. */
1167 if (par->ProgramVCLK && ((vga_rgfx(NULL, 0x9B) != par->VCLK3NumeratorLow)
1168 || (vga_rgfx(NULL, 0x9F) != par->VCLK3Denominator)
1169 || (clock_hi && ((vga_rgfx(NULL, 0x8F) & ~0x0f)
1170 != (par->VCLK3NumeratorHigh &
1171 ~0x0F))))) {
1172 vga_wgfx(NULL, 0x9B, par->VCLK3NumeratorLow);
1173 if (clock_hi) {
1174 temp = vga_rgfx(NULL, 0x8F);
1175 temp &= 0x0F; /* Save bits 3:0 */
1176 temp |= (par->VCLK3NumeratorHigh & ~0x0F);
1177 vga_wgfx(NULL, 0x8F, temp);
1178 }
1179 vga_wgfx(NULL, 0x9F, par->VCLK3Denominator);
1180 }
1181
1182 if (par->biosMode)
1183 vga_wcrt(NULL, 0x23, par->biosMode);
1184
1185 vga_wgfx(NULL, 0x93, 0xc0); /* Gives 5x faster framebuffer writes !!! */
1186
1187 /* Program vertical extension register */
1188 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2200 ||
1189 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2230 ||
1190 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2360 ||
1191 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2380) {
1192 vga_wcrt(NULL, 0x70, par->VerticalExt);
1193 }
1194
1195 vgaHWProtect(0); /* Turn on screen */
1196
1197 /* Calling this also locks offset registers required in update_start */
1198 neoLock(&par->state);
1199
1200 info->fix.line_length =
1201 info->var.xres_virtual * (info->var.bits_per_pixel >> 3);
1202
1203 switch (info->fix.accel) {
1204 case FB_ACCEL_NEOMAGIC_NM2200:
1205 case FB_ACCEL_NEOMAGIC_NM2230:
1206 case FB_ACCEL_NEOMAGIC_NM2360:
1207 case FB_ACCEL_NEOMAGIC_NM2380:
1208 neo2200_accel_init(info, &info->var);
1209 break;
1210 default:
1211 break;
1212 }
1213 return 0;
1214 }
1215
1216 static void neofb_update_start(struct fb_info *info,
1217 struct fb_var_screeninfo *var)
1218 {
1219 struct neofb_par *par = (struct neofb_par *) info->par;
1220 struct vgastate *state = &par->state;
1221 int oldExtCRTDispAddr;
1222 int Base;
1223
1224 DBG("neofb_update_start");
1225
1226 Base = (var->yoffset * var->xres_virtual + var->xoffset) >> 2;
1227 Base *= (var->bits_per_pixel + 7) / 8;
1228
1229 neoUnlock();
1230
1231 /*
1232 * These are the generic starting address registers.
1233 */
1234 vga_wcrt(state->vgabase, 0x0C, (Base & 0x00FF00) >> 8);
1235 vga_wcrt(state->vgabase, 0x0D, (Base & 0x00FF));
1236
1237 /*
1238 * Make sure we don't clobber some other bits that might already
1239 * have been set. NOTE: NM2200 has a writable bit 3, but it shouldn't
1240 * be needed.
1241 */
1242 oldExtCRTDispAddr = vga_rgfx(NULL, 0x0E);
1243 vga_wgfx(state->vgabase, 0x0E, (((Base >> 16) & 0x0f) | (oldExtCRTDispAddr & 0xf0)));
1244
1245 neoLock(state);
1246 }
1247
1248 /*
1249 * Pan or Wrap the Display
1250 */
1251 static int neofb_pan_display(struct fb_var_screeninfo *var,
1252 struct fb_info *info)
1253 {
1254 u_int y_bottom;
1255
1256 y_bottom = var->yoffset;
1257
1258 if (!(var->vmode & FB_VMODE_YWRAP))
1259 y_bottom += var->yres;
1260
1261 if (var->xoffset > (var->xres_virtual - var->xres))
1262 return -EINVAL;
1263 if (y_bottom > info->var.yres_virtual)
1264 return -EINVAL;
1265
1266 neofb_update_start(info, var);
1267
1268 info->var.xoffset = var->xoffset;
1269 info->var.yoffset = var->yoffset;
1270
1271 if (var->vmode & FB_VMODE_YWRAP)
1272 info->var.vmode |= FB_VMODE_YWRAP;
1273 else
1274 info->var.vmode &= ~FB_VMODE_YWRAP;
1275 return 0;
1276 }
1277
1278 static int neofb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
1279 u_int transp, struct fb_info *fb)
1280 {
1281 if (regno >= fb->cmap.len || regno > 255)
1282 return -EINVAL;
1283
1284 switch (fb->var.bits_per_pixel) {
1285 case 8:
1286 outb(regno, 0x3c8);
1287
1288 outb(red >> 10, 0x3c9);
1289 outb(green >> 10, 0x3c9);
1290 outb(blue >> 10, 0x3c9);
1291 break;
1292 case 16:
1293 ((u32 *) fb->pseudo_palette)[regno] =
1294 ((red & 0xf800)) | ((green & 0xfc00) >> 5) |
1295 ((blue & 0xf800) >> 11);
1296 break;
1297 case 24:
1298 ((u32 *) fb->pseudo_palette)[regno] =
1299 ((red & 0xff00) << 8) | ((green & 0xff00)) |
1300 ((blue & 0xff00) >> 8);
1301 break;
1302 #ifdef NO_32BIT_SUPPORT_YET
1303 case 32:
1304 ((u32 *) fb->pseudo_palette)[regno] =
1305 ((transp & 0xff00) << 16) | ((red & 0xff00) << 8) |
1306 ((green & 0xff00)) | ((blue & 0xff00) >> 8);
1307 break;
1308 #endif
1309 default:
1310 return 1;
1311 }
1312 return 0;
1313 }
1314
1315 /*
1316 * (Un)Blank the display.
1317 */
1318 static int neofb_blank(int blank_mode, struct fb_info *info)
1319 {
1320 /*
1321 * Blank the screen if blank_mode != 0, else unblank.
1322 * Return 0 if blanking succeeded, != 0 if un-/blanking failed due to
1323 * e.g. a video mode which doesn't support it. Implements VESA suspend
1324 * and powerdown modes for monitors, and backlight control on LCDs.
1325 * blank_mode == 0: unblanked (backlight on)
1326 * blank_mode == 1: blank (backlight on)
1327 * blank_mode == 2: suspend vsync (backlight off)
1328 * blank_mode == 3: suspend hsync (backlight off)
1329 * blank_mode == 4: powerdown (backlight off)
1330 *
1331 * wms...Enable VESA DPMS compatible powerdown mode
1332 * run "setterm -powersave powerdown" to take advantage
1333 */
1334 struct neofb_par *par = (struct neofb_par *)info->par;
1335 int seqflags, lcdflags, dpmsflags, reg;
1336
1337 switch (blank_mode) {
1338 case FB_BLANK_POWERDOWN: /* powerdown - both sync lines down */
1339 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
1340 lcdflags = 0; /* LCD off */
1341 dpmsflags = NEO_GR01_SUPPRESS_HSYNC |
1342 NEO_GR01_SUPPRESS_VSYNC;
1343 #ifdef CONFIG_TOSHIBA
1344 /* Do we still need this ? */
1345 /* attempt to turn off backlight on toshiba; also turns off external */
1346 {
1347 SMMRegisters regs;
1348
1349 regs.eax = 0xff00; /* HCI_SET */
1350 regs.ebx = 0x0002; /* HCI_BACKLIGHT */
1351 regs.ecx = 0x0000; /* HCI_DISABLE */
1352 tosh_smm(&regs);
1353 }
1354 #endif
1355 break;
1356 case FB_BLANK_HSYNC_SUSPEND: /* hsync off */
1357 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
1358 lcdflags = 0; /* LCD off */
1359 dpmsflags = NEO_GR01_SUPPRESS_HSYNC;
1360 break;
1361 case FB_BLANK_VSYNC_SUSPEND: /* vsync off */
1362 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
1363 lcdflags = 0; /* LCD off */
1364 dpmsflags = NEO_GR01_SUPPRESS_VSYNC;
1365 break;
1366 case FB_BLANK_NORMAL: /* just blank screen (backlight stays on) */
1367 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
1368 lcdflags = par->PanelDispCntlReg1 & 0x02; /* LCD normal */
1369 dpmsflags = 0; /* no hsync/vsync suppression */
1370 break;
1371 case FB_BLANK_UNBLANK: /* unblank */
1372 seqflags = 0; /* Enable sequencer */
1373 lcdflags = par->PanelDispCntlReg1 & 0x02; /* LCD normal */
1374 dpmsflags = 0x00; /* no hsync/vsync suppression */
1375 #ifdef CONFIG_TOSHIBA
1376 /* Do we still need this ? */
1377 /* attempt to re-enable backlight/external on toshiba */
1378 {
1379 SMMRegisters regs;
1380
1381 regs.eax = 0xff00; /* HCI_SET */
1382 regs.ebx = 0x0002; /* HCI_BACKLIGHT */
1383 regs.ecx = 0x0001; /* HCI_ENABLE */
1384 tosh_smm(&regs);
1385 }
1386 #endif
1387 break;
1388 default: /* Anything else we don't understand; return 1 to tell
1389 * fb_blank we didn't aactually do anything */
1390 return 1;
1391 }
1392
1393 neoUnlock();
1394 reg = (vga_rseq(NULL, 0x01) & ~0x20) | seqflags;
1395 vga_wseq(NULL, 0x01, reg);
1396 reg = (vga_rgfx(NULL, 0x20) & ~0x02) | lcdflags;
1397 vga_wgfx(NULL, 0x20, reg);
1398 reg = (vga_rgfx(NULL, 0x01) & ~0xF0) | 0x80 | dpmsflags;
1399 vga_wgfx(NULL, 0x01, reg);
1400 neoLock(&par->state);
1401 return 0;
1402 }
1403
1404 static void
1405 neo2200_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
1406 {
1407 struct neofb_par *par = (struct neofb_par *) info->par;
1408 u_long dst, rop;
1409
1410 dst = rect->dx + rect->dy * info->var.xres_virtual;
1411 rop = rect->rop ? 0x060000 : 0x0c0000;
1412
1413 neo2200_wait_fifo(info, 4);
1414
1415 /* set blt control */
1416 writel(NEO_BC3_FIFO_EN |
1417 NEO_BC0_SRC_IS_FG | NEO_BC3_SKIP_MAPPING |
1418 // NEO_BC3_DST_XY_ADDR |
1419 // NEO_BC3_SRC_XY_ADDR |
1420 rop, &par->neo2200->bltCntl);
1421
1422 switch (info->var.bits_per_pixel) {
1423 case 8:
1424 writel(rect->color, &par->neo2200->fgColor);
1425 break;
1426 case 16:
1427 case 24:
1428 writel(((u32 *) (info->pseudo_palette))[rect->color],
1429 &par->neo2200->fgColor);
1430 break;
1431 }
1432
1433 writel(dst * ((info->var.bits_per_pixel + 7) >> 3),
1434 &par->neo2200->dstStart);
1435 writel((rect->height << 16) | (rect->width & 0xffff),
1436 &par->neo2200->xyExt);
1437 }
1438
1439 static void
1440 neo2200_copyarea(struct fb_info *info, const struct fb_copyarea *area)
1441 {
1442 u32 sx = area->sx, sy = area->sy, dx = area->dx, dy = area->dy;
1443 struct neofb_par *par = (struct neofb_par *) info->par;
1444 u_long src, dst, bltCntl;
1445
1446 bltCntl = NEO_BC3_FIFO_EN | NEO_BC3_SKIP_MAPPING | 0x0C0000;
1447
1448 if ((dy > sy) || ((dy == sy) && (dx > sx))) {
1449 /* Start with the lower right corner */
1450 sy += (area->height - 1);
1451 dy += (area->height - 1);
1452 sx += (area->width - 1);
1453 dx += (area->width - 1);
1454
1455 bltCntl |= NEO_BC0_X_DEC | NEO_BC0_DST_Y_DEC | NEO_BC0_SRC_Y_DEC;
1456 }
1457
1458 src = sx * (info->var.bits_per_pixel >> 3) + sy*info->fix.line_length;
1459 dst = dx * (info->var.bits_per_pixel >> 3) + dy*info->fix.line_length;
1460
1461 neo2200_wait_fifo(info, 4);
1462
1463 /* set blt control */
1464 writel(bltCntl, &par->neo2200->bltCntl);
1465
1466 writel(src, &par->neo2200->srcStart);
1467 writel(dst, &par->neo2200->dstStart);
1468 writel((area->height << 16) | (area->width & 0xffff),
1469 &par->neo2200->xyExt);
1470 }
1471
1472 static void
1473 neo2200_imageblit(struct fb_info *info, const struct fb_image *image)
1474 {
1475 struct neofb_par *par = (struct neofb_par *) info->par;
1476 int s_pitch = (image->width * image->depth + 7) >> 3;
1477 int scan_align = info->pixmap.scan_align - 1;
1478 int buf_align = info->pixmap.buf_align - 1;
1479 int bltCntl_flags, d_pitch, data_len;
1480
1481 // The data is padded for the hardware
1482 d_pitch = (s_pitch + scan_align) & ~scan_align;
1483 data_len = ((d_pitch * image->height) + buf_align) & ~buf_align;
1484
1485 neo2200_sync(info);
1486
1487 if (image->depth == 1) {
1488 if (info->var.bits_per_pixel == 24 && image->width < 16) {
1489 /* FIXME. There is a bug with accelerated color-expanded
1490 * transfers in 24 bit mode if the image being transferred
1491 * is less than 16 bits wide. This is due to insufficient
1492 * padding when writing the image. We need to adjust
1493 * struct fb_pixmap. Not yet done. */
1494 return cfb_imageblit(info, image);
1495 }
1496 bltCntl_flags = NEO_BC0_SRC_MONO;
1497 } else if (image->depth == info->var.bits_per_pixel) {
1498 bltCntl_flags = 0;
1499 } else {
1500 /* We don't currently support hardware acceleration if image
1501 * depth is different from display */
1502 return cfb_imageblit(info, image);
1503 }
1504
1505 switch (info->var.bits_per_pixel) {
1506 case 8:
1507 writel(image->fg_color, &par->neo2200->fgColor);
1508 writel(image->bg_color, &par->neo2200->bgColor);
1509 break;
1510 case 16:
1511 case 24:
1512 writel(((u32 *) (info->pseudo_palette))[image->fg_color],
1513 &par->neo2200->fgColor);
1514 writel(((u32 *) (info->pseudo_palette))[image->bg_color],
1515 &par->neo2200->bgColor);
1516 break;
1517 }
1518
1519 writel(NEO_BC0_SYS_TO_VID |
1520 NEO_BC3_SKIP_MAPPING | bltCntl_flags |
1521 // NEO_BC3_DST_XY_ADDR |
1522 0x0c0000, &par->neo2200->bltCntl);
1523
1524 writel(0, &par->neo2200->srcStart);
1525 // par->neo2200->dstStart = (image->dy << 16) | (image->dx & 0xffff);
1526 writel(((image->dx & 0xffff) * (info->var.bits_per_pixel >> 3) +
1527 image->dy * info->fix.line_length), &par->neo2200->dstStart);
1528 writel((image->height << 16) | (image->width & 0xffff),
1529 &par->neo2200->xyExt);
1530
1531 memcpy_toio(par->mmio_vbase + 0x100000, image->data, data_len);
1532 }
1533
1534 static void
1535 neofb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
1536 {
1537 switch (info->fix.accel) {
1538 case FB_ACCEL_NEOMAGIC_NM2200:
1539 case FB_ACCEL_NEOMAGIC_NM2230:
1540 case FB_ACCEL_NEOMAGIC_NM2360:
1541 case FB_ACCEL_NEOMAGIC_NM2380:
1542 neo2200_fillrect(info, rect);
1543 break;
1544 default:
1545 cfb_fillrect(info, rect);
1546 break;
1547 }
1548 }
1549
1550 static void
1551 neofb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
1552 {
1553 switch (info->fix.accel) {
1554 case FB_ACCEL_NEOMAGIC_NM2200:
1555 case FB_ACCEL_NEOMAGIC_NM2230:
1556 case FB_ACCEL_NEOMAGIC_NM2360:
1557 case FB_ACCEL_NEOMAGIC_NM2380:
1558 neo2200_copyarea(info, area);
1559 break;
1560 default:
1561 cfb_copyarea(info, area);
1562 break;
1563 }
1564 }
1565
1566 static void
1567 neofb_imageblit(struct fb_info *info, const struct fb_image *image)
1568 {
1569 switch (info->fix.accel) {
1570 case FB_ACCEL_NEOMAGIC_NM2200:
1571 case FB_ACCEL_NEOMAGIC_NM2230:
1572 case FB_ACCEL_NEOMAGIC_NM2360:
1573 case FB_ACCEL_NEOMAGIC_NM2380:
1574 neo2200_imageblit(info, image);
1575 break;
1576 default:
1577 cfb_imageblit(info, image);
1578 break;
1579 }
1580 }
1581
1582 static int
1583 neofb_sync(struct fb_info *info)
1584 {
1585 switch (info->fix.accel) {
1586 case FB_ACCEL_NEOMAGIC_NM2200:
1587 case FB_ACCEL_NEOMAGIC_NM2230:
1588 case FB_ACCEL_NEOMAGIC_NM2360:
1589 case FB_ACCEL_NEOMAGIC_NM2380:
1590 neo2200_sync(info);
1591 break;
1592 default:
1593 break;
1594 }
1595 return 0;
1596 }
1597
1598 /*
1599 static void
1600 neofb_draw_cursor(struct fb_info *info, u8 *dst, u8 *src, unsigned int width)
1601 {
1602 //memset_io(info->sprite.addr, 0xff, 1);
1603 }
1604
1605 static int
1606 neofb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1607 {
1608 struct neofb_par *par = (struct neofb_par *) info->par;
1609
1610 * Disable cursor *
1611 write_le32(NEOREG_CURSCNTL, ~NEO_CURS_ENABLE, par);
1612
1613 if (cursor->set & FB_CUR_SETPOS) {
1614 u32 x = cursor->image.dx;
1615 u32 y = cursor->image.dy;
1616
1617 info->cursor.image.dx = x;
1618 info->cursor.image.dy = y;
1619 write_le32(NEOREG_CURSX, x, par);
1620 write_le32(NEOREG_CURSY, y, par);
1621 }
1622
1623 if (cursor->set & FB_CUR_SETSIZE) {
1624 info->cursor.image.height = cursor->image.height;
1625 info->cursor.image.width = cursor->image.width;
1626 }
1627
1628 if (cursor->set & FB_CUR_SETHOT)
1629 info->cursor.hot = cursor->hot;
1630
1631 if (cursor->set & FB_CUR_SETCMAP) {
1632 if (cursor->image.depth == 1) {
1633 u32 fg = cursor->image.fg_color;
1634 u32 bg = cursor->image.bg_color;
1635
1636 info->cursor.image.fg_color = fg;
1637 info->cursor.image.bg_color = bg;
1638
1639 fg = ((fg & 0xff0000) >> 16) | ((fg & 0xff) << 16) | (fg & 0xff00);
1640 bg = ((bg & 0xff0000) >> 16) | ((bg & 0xff) << 16) | (bg & 0xff00);
1641 write_le32(NEOREG_CURSFGCOLOR, fg, par);
1642 write_le32(NEOREG_CURSBGCOLOR, bg, par);
1643 }
1644 }
1645
1646 if (cursor->set & FB_CUR_SETSHAPE)
1647 fb_load_cursor_image(info);
1648
1649 if (info->cursor.enable)
1650 write_le32(NEOREG_CURSCNTL, NEO_CURS_ENABLE, par);
1651 return 0;
1652 }
1653 */
1654
1655 static struct fb_ops neofb_ops = {
1656 .owner = THIS_MODULE,
1657 .fb_open = neofb_open,
1658 .fb_release = neofb_release,
1659 .fb_check_var = neofb_check_var,
1660 .fb_set_par = neofb_set_par,
1661 .fb_setcolreg = neofb_setcolreg,
1662 .fb_pan_display = neofb_pan_display,
1663 .fb_blank = neofb_blank,
1664 .fb_sync = neofb_sync,
1665 .fb_fillrect = neofb_fillrect,
1666 .fb_copyarea = neofb_copyarea,
1667 .fb_imageblit = neofb_imageblit,
1668 .fb_cursor = soft_cursor,
1669 };
1670
1671 /* --------------------------------------------------------------------- */
1672
1673 static struct fb_videomode __devinitdata mode800x480 = {
1674 .xres = 800,
1675 .yres = 480,
1676 .pixclock = 25000,
1677 .left_margin = 88,
1678 .right_margin = 40,
1679 .upper_margin = 23,
1680 .lower_margin = 1,
1681 .hsync_len = 128,
1682 .vsync_len = 4,
1683 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
1684 .vmode = FB_VMODE_NONINTERLACED
1685 };
1686
1687 static int __devinit neo_map_mmio(struct fb_info *info,
1688 struct pci_dev *dev)
1689 {
1690 struct neofb_par *par = (struct neofb_par *) info->par;
1691
1692 DBG("neo_map_mmio");
1693
1694 switch (info->fix.accel) {
1695 case FB_ACCEL_NEOMAGIC_NM2070:
1696 info->fix.mmio_start = pci_resource_start(dev, 0)+
1697 0x100000;
1698 break;
1699 case FB_ACCEL_NEOMAGIC_NM2090:
1700 case FB_ACCEL_NEOMAGIC_NM2093:
1701 info->fix.mmio_start = pci_resource_start(dev, 0)+
1702 0x200000;
1703 break;
1704 case FB_ACCEL_NEOMAGIC_NM2160:
1705 case FB_ACCEL_NEOMAGIC_NM2097:
1706 case FB_ACCEL_NEOMAGIC_NM2200:
1707 case FB_ACCEL_NEOMAGIC_NM2230:
1708 case FB_ACCEL_NEOMAGIC_NM2360:
1709 case FB_ACCEL_NEOMAGIC_NM2380:
1710 info->fix.mmio_start = pci_resource_start(dev, 1);
1711 break;
1712 default:
1713 info->fix.mmio_start = pci_resource_start(dev, 0);
1714 }
1715 info->fix.mmio_len = MMIO_SIZE;
1716
1717 if (!request_mem_region
1718 (info->fix.mmio_start, MMIO_SIZE, "memory mapped I/O")) {
1719 printk("neofb: memory mapped IO in use\n");
1720 return -EBUSY;
1721 }
1722
1723 par->mmio_vbase = ioremap(info->fix.mmio_start, MMIO_SIZE);
1724 if (!par->mmio_vbase) {
1725 printk("neofb: unable to map memory mapped IO\n");
1726 release_mem_region(info->fix.mmio_start,
1727 info->fix.mmio_len);
1728 return -ENOMEM;
1729 } else
1730 printk(KERN_INFO "neofb: mapped io at %p\n",
1731 par->mmio_vbase);
1732 return 0;
1733 }
1734
1735 static void neo_unmap_mmio(struct fb_info *info)
1736 {
1737 struct neofb_par *par = (struct neofb_par *) info->par;
1738
1739 DBG("neo_unmap_mmio");
1740
1741 iounmap(par->mmio_vbase);
1742 par->mmio_vbase = NULL;
1743
1744 release_mem_region(info->fix.mmio_start,
1745 info->fix.mmio_len);
1746 }
1747
1748 static int __devinit neo_map_video(struct fb_info *info,
1749 struct pci_dev *dev, int video_len)
1750 {
1751 //unsigned long addr;
1752
1753 DBG("neo_map_video");
1754
1755 info->fix.smem_start = pci_resource_start(dev, 0);
1756 info->fix.smem_len = video_len;
1757
1758 if (!request_mem_region(info->fix.smem_start, info->fix.smem_len,
1759 "frame buffer")) {
1760 printk("neofb: frame buffer in use\n");
1761 return -EBUSY;
1762 }
1763
1764 info->screen_base =
1765 ioremap(info->fix.smem_start, info->fix.smem_len);
1766 if (!info->screen_base) {
1767 printk("neofb: unable to map screen memory\n");
1768 release_mem_region(info->fix.smem_start,
1769 info->fix.smem_len);
1770 return -ENOMEM;
1771 } else
1772 printk(KERN_INFO "neofb: mapped framebuffer at %p\n",
1773 info->screen_base);
1774
1775 #ifdef CONFIG_MTRR
1776 ((struct neofb_par *)(info->par))->mtrr =
1777 mtrr_add(info->fix.smem_start, pci_resource_len(dev, 0),
1778 MTRR_TYPE_WRCOMB, 1);
1779 #endif
1780
1781 /* Clear framebuffer, it's all white in memory after boot */
1782 memset_io(info->screen_base, 0, info->fix.smem_len);
1783
1784 /* Allocate Cursor drawing pad.
1785 info->fix.smem_len -= PAGE_SIZE;
1786 addr = info->fix.smem_start + info->fix.smem_len;
1787 write_le32(NEOREG_CURSMEMPOS, ((0x000f & (addr >> 10)) << 8) |
1788 ((0x0ff0 & (addr >> 10)) >> 4), par);
1789 addr = (unsigned long) info->screen_base + info->fix.smem_len;
1790 info->sprite.addr = (u8 *) addr; */
1791 return 0;
1792 }
1793
1794 static void neo_unmap_video(struct fb_info *info)
1795 {
1796 DBG("neo_unmap_video");
1797
1798 #ifdef CONFIG_MTRR
1799 {
1800 struct neofb_par *par = (struct neofb_par *) info->par;
1801
1802 mtrr_del(par->mtrr, info->fix.smem_start,
1803 info->fix.smem_len);
1804 }
1805 #endif
1806 iounmap(info->screen_base);
1807 info->screen_base = NULL;
1808
1809 release_mem_region(info->fix.smem_start,
1810 info->fix.smem_len);
1811 }
1812
1813 static int __devinit neo_scan_monitor(struct fb_info *info)
1814 {
1815 struct neofb_par *par = (struct neofb_par *) info->par;
1816 unsigned char type, display;
1817 int w;
1818
1819 // Eventually we will have i2c support.
1820 info->monspecs.modedb = kmalloc(sizeof(struct fb_videomode), GFP_KERNEL);
1821 if (!info->monspecs.modedb)
1822 return -ENOMEM;
1823 info->monspecs.modedb_len = 1;
1824
1825 /* Determine the panel type */
1826 vga_wgfx(NULL, 0x09, 0x26);
1827 type = vga_rgfx(NULL, 0x21);
1828 display = vga_rgfx(NULL, 0x20);
1829 if (!par->internal_display && !par->external_display) {
1830 par->internal_display = display & 2 || !(display & 3) ? 1 : 0;
1831 par->external_display = display & 1;
1832 printk (KERN_INFO "Autodetected %s display\n",
1833 par->internal_display && par->external_display ? "simultaneous" :
1834 par->internal_display ? "internal" : "external");
1835 }
1836
1837 /* Determine panel width -- used in NeoValidMode. */
1838 w = vga_rgfx(NULL, 0x20);
1839 vga_wgfx(NULL, 0x09, 0x00);
1840 switch ((w & 0x18) >> 3) {
1841 case 0x00:
1842 // 640x480@60
1843 par->NeoPanelWidth = 640;
1844 par->NeoPanelHeight = 480;
1845 memcpy(info->monspecs.modedb, &vesa_modes[3], sizeof(struct fb_videomode));
1846 break;
1847 case 0x01:
1848 par->NeoPanelWidth = 800;
1849 if (par->libretto) {
1850 par->NeoPanelHeight = 480;
1851 memcpy(info->monspecs.modedb, &mode800x480, sizeof(struct fb_videomode));
1852 } else {
1853 // 800x600@60
1854 par->NeoPanelHeight = 600;
1855 memcpy(info->monspecs.modedb, &vesa_modes[8], sizeof(struct fb_videomode));
1856 }
1857 break;
1858 case 0x02:
1859 // 1024x768@60
1860 par->NeoPanelWidth = 1024;
1861 par->NeoPanelHeight = 768;
1862 memcpy(info->monspecs.modedb, &vesa_modes[13], sizeof(struct fb_videomode));
1863 break;
1864 case 0x03:
1865 /* 1280x1024@60 panel support needs to be added */
1866 #ifdef NOT_DONE
1867 par->NeoPanelWidth = 1280;
1868 par->NeoPanelHeight = 1024;
1869 memcpy(info->monspecs.modedb, &vesa_modes[20], sizeof(struct fb_videomode));
1870 break;
1871 #else
1872 printk(KERN_ERR
1873 "neofb: Only 640x480, 800x600/480 and 1024x768 panels are currently supported\n");
1874 return -1;
1875 #endif
1876 default:
1877 // 640x480@60
1878 par->NeoPanelWidth = 640;
1879 par->NeoPanelHeight = 480;
1880 memcpy(info->monspecs.modedb, &vesa_modes[3], sizeof(struct fb_videomode));
1881 break;
1882 }
1883
1884 printk(KERN_INFO "Panel is a %dx%d %s %s display\n",
1885 par->NeoPanelWidth,
1886 par->NeoPanelHeight,
1887 (type & 0x02) ? "color" : "monochrome",
1888 (type & 0x10) ? "TFT" : "dual scan");
1889 return 0;
1890 }
1891
1892 static int __devinit neo_init_hw(struct fb_info *info)
1893 {
1894 struct neofb_par *par = (struct neofb_par *) info->par;
1895 int videoRam = 896;
1896 int maxClock = 65000;
1897 int CursorMem = 1024;
1898 int CursorOff = 0x100;
1899 int linearSize = 1024;
1900 int maxWidth = 1024;
1901 int maxHeight = 1024;
1902
1903 DBG("neo_init_hw");
1904
1905 neoUnlock();
1906
1907 #if 0
1908 printk(KERN_DEBUG "--- Neo extended register dump ---\n");
1909 for (int w = 0; w < 0x85; w++)
1910 printk(KERN_DEBUG "CR %p: %p\n", (void *) w,
1911 (void *) vga_rcrt(NULL, w);
1912 for (int w = 0; w < 0xC7; w++)
1913 printk(KERN_DEBUG "GR %p: %p\n", (void *) w,
1914 (void *) vga_rgfx(NULL, w));
1915 #endif
1916 switch (info->fix.accel) {
1917 case FB_ACCEL_NEOMAGIC_NM2070:
1918 videoRam = 896;
1919 maxClock = 65000;
1920 CursorMem = 2048;
1921 CursorOff = 0x100;
1922 linearSize = 1024;
1923 maxWidth = 1024;
1924 maxHeight = 1024;
1925 break;
1926 case FB_ACCEL_NEOMAGIC_NM2090:
1927 case FB_ACCEL_NEOMAGIC_NM2093:
1928 videoRam = 1152;
1929 maxClock = 80000;
1930 CursorMem = 2048;
1931 CursorOff = 0x100;
1932 linearSize = 2048;
1933 maxWidth = 1024;
1934 maxHeight = 1024;
1935 break;
1936 case FB_ACCEL_NEOMAGIC_NM2097:
1937 videoRam = 1152;
1938 maxClock = 80000;
1939 CursorMem = 1024;
1940 CursorOff = 0x100;
1941 linearSize = 2048;
1942 maxWidth = 1024;
1943 maxHeight = 1024;
1944 break;
1945 case FB_ACCEL_NEOMAGIC_NM2160:
1946 videoRam = 2048;
1947 maxClock = 90000;
1948 CursorMem = 1024;
1949 CursorOff = 0x100;
1950 linearSize = 2048;
1951 maxWidth = 1024;
1952 maxHeight = 1024;
1953 break;
1954 case FB_ACCEL_NEOMAGIC_NM2200:
1955 videoRam = 2560;
1956 maxClock = 110000;
1957 CursorMem = 1024;
1958 CursorOff = 0x1000;
1959 linearSize = 4096;
1960 maxWidth = 1280;
1961 maxHeight = 1024; /* ???? */
1962
1963 par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase;
1964 break;
1965 case FB_ACCEL_NEOMAGIC_NM2230:
1966 videoRam = 3008;
1967 maxClock = 110000;
1968 CursorMem = 1024;
1969 CursorOff = 0x1000;
1970 linearSize = 4096;
1971 maxWidth = 1280;
1972 maxHeight = 1024; /* ???? */
1973
1974 par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase;
1975 break;
1976 case FB_ACCEL_NEOMAGIC_NM2360:
1977 videoRam = 4096;
1978 maxClock = 110000;
1979 CursorMem = 1024;
1980 CursorOff = 0x1000;
1981 linearSize = 4096;
1982 maxWidth = 1280;
1983 maxHeight = 1024; /* ???? */
1984
1985 par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase;
1986 break;
1987 case FB_ACCEL_NEOMAGIC_NM2380:
1988 videoRam = 6144;
1989 maxClock = 110000;
1990 CursorMem = 1024;
1991 CursorOff = 0x1000;
1992 linearSize = 8192;
1993 maxWidth = 1280;
1994 maxHeight = 1024; /* ???? */
1995
1996 par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase;
1997 break;
1998 }
1999 /*
2000 info->sprite.size = CursorMem;
2001 info->sprite.scan_align = 1;
2002 info->sprite.buf_align = 1;
2003 info->sprite.flags = FB_PIXMAP_IO;
2004 info->sprite.outbuf = neofb_draw_cursor;
2005 */
2006 par->maxClock = maxClock;
2007 par->cursorOff = CursorOff;
2008 return ((videoRam * 1024));
2009 }
2010
2011
2012 static struct fb_info *__devinit neo_alloc_fb_info(struct pci_dev *dev, const struct
2013 pci_device_id *id)
2014 {
2015 struct fb_info *info;
2016 struct neofb_par *par;
2017
2018 info = framebuffer_alloc(sizeof(struct neofb_par) + sizeof(u32) * 256, &dev->dev);
2019
2020 if (!info)
2021 return NULL;
2022
2023 par = info->par;
2024
2025 info->fix.accel = id->driver_data;
2026
2027 par->pci_burst = !nopciburst;
2028 par->lcd_stretch = !nostretch;
2029 par->libretto = libretto;
2030
2031 par->internal_display = internal;
2032 par->external_display = external;
2033 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
2034
2035 switch (info->fix.accel) {
2036 case FB_ACCEL_NEOMAGIC_NM2070:
2037 sprintf(info->fix.id, "MagicGraph 128");
2038 break;
2039 case FB_ACCEL_NEOMAGIC_NM2090:
2040 sprintf(info->fix.id, "MagicGraph 128V");
2041 break;
2042 case FB_ACCEL_NEOMAGIC_NM2093:
2043 sprintf(info->fix.id, "MagicGraph 128ZV");
2044 break;
2045 case FB_ACCEL_NEOMAGIC_NM2097:
2046 sprintf(info->fix.id, "MagicGraph 128ZV+");
2047 break;
2048 case FB_ACCEL_NEOMAGIC_NM2160:
2049 sprintf(info->fix.id, "MagicGraph 128XD");
2050 break;
2051 case FB_ACCEL_NEOMAGIC_NM2200:
2052 sprintf(info->fix.id, "MagicGraph 256AV");
2053 info->flags |= FBINFO_HWACCEL_IMAGEBLIT |
2054 FBINFO_HWACCEL_COPYAREA |
2055 FBINFO_HWACCEL_FILLRECT;
2056 break;
2057 case FB_ACCEL_NEOMAGIC_NM2230:
2058 sprintf(info->fix.id, "MagicGraph 256AV+");
2059 info->flags |= FBINFO_HWACCEL_IMAGEBLIT |
2060 FBINFO_HWACCEL_COPYAREA |
2061 FBINFO_HWACCEL_FILLRECT;
2062 break;
2063 case FB_ACCEL_NEOMAGIC_NM2360:
2064 sprintf(info->fix.id, "MagicGraph 256ZX");
2065 info->flags |= FBINFO_HWACCEL_IMAGEBLIT |
2066 FBINFO_HWACCEL_COPYAREA |
2067 FBINFO_HWACCEL_FILLRECT;
2068 break;
2069 case FB_ACCEL_NEOMAGIC_NM2380:
2070 sprintf(info->fix.id, "MagicGraph 256XL+");
2071 info->flags |= FBINFO_HWACCEL_IMAGEBLIT |
2072 FBINFO_HWACCEL_COPYAREA |
2073 FBINFO_HWACCEL_FILLRECT;
2074 break;
2075 }
2076
2077 info->fix.type = FB_TYPE_PACKED_PIXELS;
2078 info->fix.type_aux = 0;
2079 info->fix.xpanstep = 0;
2080 info->fix.ypanstep = 4;
2081 info->fix.ywrapstep = 0;
2082 info->fix.accel = id->driver_data;
2083
2084 info->fbops = &neofb_ops;
2085 info->pseudo_palette = (void *) (par + 1);
2086 return info;
2087 }
2088
2089 static void neo_free_fb_info(struct fb_info *info)
2090 {
2091 if (info) {
2092 /*
2093 * Free the colourmap
2094 */
2095 fb_dealloc_cmap(&info->cmap);
2096 framebuffer_release(info);
2097 }
2098 }
2099
2100 /* --------------------------------------------------------------------- */
2101
2102 static int __devinit neofb_probe(struct pci_dev *dev,
2103 const struct pci_device_id *id)
2104 {
2105 struct fb_info *info;
2106 u_int h_sync, v_sync;
2107 int video_len, err;
2108
2109 DBG("neofb_probe");
2110
2111 err = pci_enable_device(dev);
2112 if (err)
2113 return err;
2114
2115 err = -ENOMEM;
2116 info = neo_alloc_fb_info(dev, id);
2117 if (!info)
2118 return err;
2119
2120 err = neo_map_mmio(info, dev);
2121 if (err)
2122 goto err_map_mmio;
2123
2124 err = neo_scan_monitor(info);
2125 if (err)
2126 goto err_scan_monitor;
2127
2128 video_len = neo_init_hw(info);
2129 if (video_len < 0) {
2130 err = video_len;
2131 goto err_init_hw;
2132 }
2133
2134 err = neo_map_video(info, dev, video_len);
2135 if (err)
2136 goto err_init_hw;
2137
2138 if (!fb_find_mode(&info->var, info, mode_option, NULL, 0,
2139 info->monspecs.modedb, 16)) {
2140 printk(KERN_ERR "neofb: Unable to find usable video mode.\n");
2141 goto err_map_video;
2142 }
2143
2144 /*
2145 * Calculate the hsync and vsync frequencies. Note that
2146 * we split the 1e12 constant up so that we can preserve
2147 * the precision and fit the results into 32-bit registers.
2148 * (1953125000 * 512 = 1e12)
2149 */
2150 h_sync = 1953125000 / info->var.pixclock;
2151 h_sync =
2152 h_sync * 512 / (info->var.xres + info->var.left_margin +
2153 info->var.right_margin + info->var.hsync_len);
2154 v_sync =
2155 h_sync / (info->var.yres + info->var.upper_margin +
2156 info->var.lower_margin + info->var.vsync_len);
2157
2158 printk(KERN_INFO "neofb v" NEOFB_VERSION
2159 ": %dkB VRAM, using %dx%d, %d.%03dkHz, %dHz\n",
2160 info->fix.smem_len >> 10, info->var.xres,
2161 info->var.yres, h_sync / 1000, h_sync % 1000, v_sync);
2162
2163 if (fb_alloc_cmap(&info->cmap, 256, 0) < 0)
2164 goto err_map_video;
2165
2166 err = register_framebuffer(info);
2167 if (err < 0)
2168 goto err_reg_fb;
2169
2170 printk(KERN_INFO "fb%d: %s frame buffer device\n",
2171 info->node, info->fix.id);
2172
2173 /*
2174 * Our driver data
2175 */
2176 pci_set_drvdata(dev, info);
2177 return 0;
2178
2179 err_reg_fb:
2180 fb_dealloc_cmap(&info->cmap);
2181 err_map_video:
2182 neo_unmap_video(info);
2183 err_init_hw:
2184 fb_destroy_modedb(info->monspecs.modedb);
2185 err_scan_monitor:
2186 neo_unmap_mmio(info);
2187 err_map_mmio:
2188 neo_free_fb_info(info);
2189 return err;
2190 }
2191
2192 static void __devexit neofb_remove(struct pci_dev *dev)
2193 {
2194 struct fb_info *info = pci_get_drvdata(dev);
2195
2196 DBG("neofb_remove");
2197
2198 if (info) {
2199 /*
2200 * If unregister_framebuffer fails, then
2201 * we will be leaving hooks that could cause
2202 * oopsen laying around.
2203 */
2204 if (unregister_framebuffer(info))
2205 printk(KERN_WARNING
2206 "neofb: danger danger! Oopsen imminent!\n");
2207
2208 neo_unmap_video(info);
2209 fb_destroy_modedb(info->monspecs.modedb);
2210 neo_unmap_mmio(info);
2211 neo_free_fb_info(info);
2212
2213 /*
2214 * Ensure that the driver data is no longer
2215 * valid.
2216 */
2217 pci_set_drvdata(dev, NULL);
2218 }
2219 }
2220
2221 static struct pci_device_id neofb_devices[] = {
2222 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2070,
2223 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2070},
2224
2225 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2090,
2226 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2090},
2227
2228 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2093,
2229 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2093},
2230
2231 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2097,
2232 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2097},
2233
2234 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2160,
2235 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2160},
2236
2237 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2200,
2238 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2200},
2239
2240 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2230,
2241 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2230},
2242
2243 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2360,
2244 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2360},
2245
2246 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2380,
2247 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2380},
2248
2249 {0, 0, 0, 0, 0, 0, 0}
2250 };
2251
2252 MODULE_DEVICE_TABLE(pci, neofb_devices);
2253
2254 static struct pci_driver neofb_driver = {
2255 .name = "neofb",
2256 .id_table = neofb_devices,
2257 .probe = neofb_probe,
2258 .remove = __devexit_p(neofb_remove)
2259 };
2260
2261 /* ************************* init in-kernel code ************************** */
2262
2263 #ifndef MODULE
2264 static int __init neofb_setup(char *options)
2265 {
2266 char *this_opt;
2267
2268 DBG("neofb_setup");
2269
2270 if (!options || !*options)
2271 return 0;
2272
2273 while ((this_opt = strsep(&options, ",")) != NULL) {
2274 if (!*this_opt)
2275 continue;
2276
2277 if (!strncmp(this_opt, "internal", 8))
2278 internal = 1;
2279 else if (!strncmp(this_opt, "external", 8))
2280 external = 1;
2281 else if (!strncmp(this_opt, "nostretch", 9))
2282 nostretch = 1;
2283 else if (!strncmp(this_opt, "nopciburst", 10))
2284 nopciburst = 1;
2285 else if (!strncmp(this_opt, "libretto", 8))
2286 libretto = 1;
2287 else
2288 mode_option = this_opt;
2289 }
2290 return 0;
2291 }
2292 #endif /* MODULE */
2293
2294 static int __init neofb_init(void)
2295 {
2296 #ifndef MODULE
2297 char *option = NULL;
2298
2299 if (fb_get_options("neofb", &option))
2300 return -ENODEV;
2301 neofb_setup(option);
2302 #endif
2303 return pci_register_driver(&neofb_driver);
2304 }
2305
2306 module_init(neofb_init);
2307
2308 #ifdef MODULE
2309 static void __exit neofb_exit(void)
2310 {
2311 pci_unregister_driver(&neofb_driver);
2312 }
2313
2314 module_exit(neofb_exit);
2315 #endif /* MODULE */
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