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Avoid beyond bounds copy while caching ACL
[zen-stable.git] / drivers / video / neofb.c
blobfb3f6739110532ddeda7008eecfefd5e277dd207
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/module.h>
58 #include <linux/kernel.h>
59 #include <linux/errno.h>
60 #include <linux/string.h>
61 #include <linux/mm.h>
62 #include <linux/slab.h>
63 #include <linux/delay.h>
64 #include <linux/fb.h>
65 #include <linux/pci.h>
66 #include <linux/init.h>
67 #ifdef CONFIG_TOSHIBA
68 #include <linux/toshiba.h>
69 #endif
70
71 #include <asm/io.h>
72 #include <asm/irq.h>
73 #include <asm/pgtable.h>
74 #include <asm/system.h>
75
76 #ifdef CONFIG_MTRR
77 #include <asm/mtrr.h>
78 #endif
79
80 #include <video/vga.h>
81 #include <video/neomagic.h>
82
83 #define NEOFB_VERSION "0.4.2"
84
85 /* --------------------------------------------------------------------- */
86
87 static bool internal;
88 static bool external;
89 static bool libretto;
90 static bool nostretch;
91 static bool nopciburst;
92 static char *mode_option __devinitdata = NULL;
93
94 #ifdef MODULE
95
96 MODULE_AUTHOR("(c) 2001-2002 Denis Oliver Kropp <dok@convergence.de>");
97 MODULE_LICENSE("GPL");
98 MODULE_DESCRIPTION("FBDev driver for NeoMagic PCI Chips");
99 module_param(internal, bool, 0);
100 MODULE_PARM_DESC(internal, "Enable output on internal LCD Display.");
101 module_param(external, bool, 0);
102 MODULE_PARM_DESC(external, "Enable output on external CRT.");
103 module_param(libretto, bool, 0);
104 MODULE_PARM_DESC(libretto, "Force Libretto 100/110 800x480 LCD.");
105 module_param(nostretch, bool, 0);
106 MODULE_PARM_DESC(nostretch,
107 "Disable stretching of modes smaller than LCD.");
108 module_param(nopciburst, bool, 0);
109 MODULE_PARM_DESC(nopciburst, "Disable PCI burst mode.");
110 module_param(mode_option, charp, 0);
111 MODULE_PARM_DESC(mode_option, "Preferred video mode ('640x480-8@60', etc)");
112
113 #endif
114
115
116 /* --------------------------------------------------------------------- */
117
118 static biosMode bios8[] = {
119 {320, 240, 0x40},
120 {300, 400, 0x42},
121 {640, 400, 0x20},
122 {640, 480, 0x21},
123 {800, 600, 0x23},
124 {1024, 768, 0x25},
125 };
126
127 static biosMode bios16[] = {
128 {320, 200, 0x2e},
129 {320, 240, 0x41},
130 {300, 400, 0x43},
131 {640, 480, 0x31},
132 {800, 600, 0x34},
133 {1024, 768, 0x37},
134 };
135
136 static biosMode bios24[] = {
137 {640, 480, 0x32},
138 {800, 600, 0x35},
139 {1024, 768, 0x38}
140 };
141
142 #ifdef NO_32BIT_SUPPORT_YET
143 /* FIXME: guessed values, wrong */
144 static biosMode bios32[] = {
145 {640, 480, 0x33},
146 {800, 600, 0x36},
147 {1024, 768, 0x39}
148 };
149 #endif
150
151 static inline void write_le32(int regindex, u32 val, const struct neofb_par *par)
152 {
153 writel(val, par->neo2200 + par->cursorOff + regindex);
154 }
155
156 static int neoFindMode(int xres, int yres, int depth)
157 {
158 int xres_s;
159 int i, size;
160 biosMode *mode;
161
162 switch (depth) {
163 case 8:
164 size = ARRAY_SIZE(bios8);
165 mode = bios8;
166 break;
167 case 16:
168 size = ARRAY_SIZE(bios16);
169 mode = bios16;
170 break;
171 case 24:
172 size = ARRAY_SIZE(bios24);
173 mode = bios24;
174 break;
175 #ifdef NO_32BIT_SUPPORT_YET
176 case 32:
177 size = ARRAY_SIZE(bios32);
178 mode = bios32;
179 break;
180 #endif
181 default:
182 return 0;
183 }
184
185 for (i = 0; i < size; i++) {
186 if (xres <= mode[i].x_res) {
187 xres_s = mode[i].x_res;
188 for (; i < size; i++) {
189 if (mode[i].x_res != xres_s)
190 return mode[i - 1].mode;
191 if (yres <= mode[i].y_res)
192 return mode[i].mode;
193 }
194 }
195 }
196 return mode[size - 1].mode;
197 }
198
199 /*
200 * neoCalcVCLK --
201 *
202 * Determine the closest clock frequency to the one requested.
203 */
204 #define MAX_N 127
205 #define MAX_D 31
206 #define MAX_F 1
207
208 static void neoCalcVCLK(const struct fb_info *info,
209 struct neofb_par *par, long freq)
210 {
211 int n, d, f;
212 int n_best = 0, d_best = 0, f_best = 0;
213 long f_best_diff = 0x7ffff;
214
215 for (f = 0; f <= MAX_F; f++)
216 for (d = 0; d <= MAX_D; d++)
217 for (n = 0; n <= MAX_N; n++) {
218 long f_out;
219 long f_diff;
220
221 f_out = ((14318 * (n + 1)) / (d + 1)) >> f;
222 f_diff = abs(f_out - freq);
223 if (f_diff <= f_best_diff) {
224 f_best_diff = f_diff;
225 n_best = n;
226 d_best = d;
227 f_best = f;
228 }
229 if (f_out > freq)
230 break;
231 }
232
233 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2200 ||
234 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2230 ||
235 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2360 ||
236 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2380) {
237 /* NOT_DONE: We are trying the full range of the 2200 clock.
238 We should be able to try n up to 2047 */
239 par->VCLK3NumeratorLow = n_best;
240 par->VCLK3NumeratorHigh = (f_best << 7);
241 } else
242 par->VCLK3NumeratorLow = n_best | (f_best << 7);
243
244 par->VCLK3Denominator = d_best;
245
246 #ifdef NEOFB_DEBUG
247 printk(KERN_DEBUG "neoVCLK: f:%ld NumLow=%d NumHi=%d Den=%d Df=%ld\n",
248 freq,
249 par->VCLK3NumeratorLow,
250 par->VCLK3NumeratorHigh,
251 par->VCLK3Denominator, f_best_diff);
252 #endif
253 }
254
255 /*
256 * vgaHWInit --
257 * Handle the initialization, etc. of a screen.
258 * Return FALSE on failure.
259 */
260
261 static int vgaHWInit(const struct fb_var_screeninfo *var,
262 struct neofb_par *par)
263 {
264 int hsync_end = var->xres + var->right_margin + var->hsync_len;
265 int htotal = (hsync_end + var->left_margin) >> 3;
266 int vsync_start = var->yres + var->lower_margin;
267 int vsync_end = vsync_start + var->vsync_len;
268 int vtotal = vsync_end + var->upper_margin;
269
270 par->MiscOutReg = 0x23;
271
272 if (!(var->sync & FB_SYNC_HOR_HIGH_ACT))
273 par->MiscOutReg |= 0x40;
274
275 if (!(var->sync & FB_SYNC_VERT_HIGH_ACT))
276 par->MiscOutReg |= 0x80;
277
278 /*
279 * Time Sequencer
280 */
281 par->Sequencer[0] = 0x00;
282 par->Sequencer[1] = 0x01;
283 par->Sequencer[2] = 0x0F;
284 par->Sequencer[3] = 0x00; /* Font select */
285 par->Sequencer[4] = 0x0E; /* Misc */
286
287 /*
288 * CRTC Controller
289 */
290 par->CRTC[0] = htotal - 5;
291 par->CRTC[1] = (var->xres >> 3) - 1;
292 par->CRTC[2] = (var->xres >> 3) - 1;
293 par->CRTC[3] = ((htotal - 1) & 0x1F) | 0x80;
294 par->CRTC[4] = ((var->xres + var->right_margin) >> 3);
295 par->CRTC[5] = (((htotal - 1) & 0x20) << 2)
296 | (((hsync_end >> 3)) & 0x1F);
297 par->CRTC[6] = (vtotal - 2) & 0xFF;
298 par->CRTC[7] = (((vtotal - 2) & 0x100) >> 8)
299 | (((var->yres - 1) & 0x100) >> 7)
300 | ((vsync_start & 0x100) >> 6)
301 | (((var->yres - 1) & 0x100) >> 5)
302 | 0x10 | (((vtotal - 2) & 0x200) >> 4)
303 | (((var->yres - 1) & 0x200) >> 3)
304 | ((vsync_start & 0x200) >> 2);
305 par->CRTC[8] = 0x00;
306 par->CRTC[9] = (((var->yres - 1) & 0x200) >> 4) | 0x40;
307
308 if (var->vmode & FB_VMODE_DOUBLE)
309 par->CRTC[9] |= 0x80;
310
311 par->CRTC[10] = 0x00;
312 par->CRTC[11] = 0x00;
313 par->CRTC[12] = 0x00;
314 par->CRTC[13] = 0x00;
315 par->CRTC[14] = 0x00;
316 par->CRTC[15] = 0x00;
317 par->CRTC[16] = vsync_start & 0xFF;
318 par->CRTC[17] = (vsync_end & 0x0F) | 0x20;
319 par->CRTC[18] = (var->yres - 1) & 0xFF;
320 par->CRTC[19] = var->xres_virtual >> 4;
321 par->CRTC[20] = 0x00;
322 par->CRTC[21] = (var->yres - 1) & 0xFF;
323 par->CRTC[22] = (vtotal - 1) & 0xFF;
324 par->CRTC[23] = 0xC3;
325 par->CRTC[24] = 0xFF;
326
327 /*
328 * are these unnecessary?
329 * vgaHWHBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN | KGA_ENABLE_ON_ZERO);
330 * vgaHWVBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN | KGA_ENABLE_ON_ZERO);
331 */
332
333 /*
334 * Graphics Display Controller
335 */
336 par->Graphics[0] = 0x00;
337 par->Graphics[1] = 0x00;
338 par->Graphics[2] = 0x00;
339 par->Graphics[3] = 0x00;
340 par->Graphics[4] = 0x00;
341 par->Graphics[5] = 0x40;
342 par->Graphics[6] = 0x05; /* only map 64k VGA memory !!!! */
343 par->Graphics[7] = 0x0F;
344 par->Graphics[8] = 0xFF;
345
346
347 par->Attribute[0] = 0x00; /* standard colormap translation */
348 par->Attribute[1] = 0x01;
349 par->Attribute[2] = 0x02;
350 par->Attribute[3] = 0x03;
351 par->Attribute[4] = 0x04;
352 par->Attribute[5] = 0x05;
353 par->Attribute[6] = 0x06;
354 par->Attribute[7] = 0x07;
355 par->Attribute[8] = 0x08;
356 par->Attribute[9] = 0x09;
357 par->Attribute[10] = 0x0A;
358 par->Attribute[11] = 0x0B;
359 par->Attribute[12] = 0x0C;
360 par->Attribute[13] = 0x0D;
361 par->Attribute[14] = 0x0E;
362 par->Attribute[15] = 0x0F;
363 par->Attribute[16] = 0x41;
364 par->Attribute[17] = 0xFF;
365 par->Attribute[18] = 0x0F;
366 par->Attribute[19] = 0x00;
367 par->Attribute[20] = 0x00;
368 return 0;
369 }
370
371 static void vgaHWLock(struct vgastate *state)
372 {
373 /* Protect CRTC[0-7] */
374 vga_wcrt(state->vgabase, 0x11, vga_rcrt(state->vgabase, 0x11) | 0x80);
375 }
376
377 static void vgaHWUnlock(void)
378 {
379 /* Unprotect CRTC[0-7] */
380 vga_wcrt(NULL, 0x11, vga_rcrt(NULL, 0x11) & ~0x80);
381 }
382
383 static void neoLock(struct vgastate *state)
384 {
385 vga_wgfx(state->vgabase, 0x09, 0x00);
386 vgaHWLock(state);
387 }
388
389 static void neoUnlock(void)
390 {
391 vgaHWUnlock();
392 vga_wgfx(NULL, 0x09, 0x26);
393 }
394
395 /*
396 * VGA Palette management
397 */
398 static int paletteEnabled = 0;
399
400 static inline void VGAenablePalette(void)
401 {
402 vga_r(NULL, VGA_IS1_RC);
403 vga_w(NULL, VGA_ATT_W, 0x00);
404 paletteEnabled = 1;
405 }
406
407 static inline void VGAdisablePalette(void)
408 {
409 vga_r(NULL, VGA_IS1_RC);
410 vga_w(NULL, VGA_ATT_W, 0x20);
411 paletteEnabled = 0;
412 }
413
414 static inline void VGAwATTR(u8 index, u8 value)
415 {
416 if (paletteEnabled)
417 index &= ~0x20;
418 else
419 index |= 0x20;
420
421 vga_r(NULL, VGA_IS1_RC);
422 vga_wattr(NULL, index, value);
423 }
424
425 static void vgaHWProtect(int on)
426 {
427 unsigned char tmp;
428
429 tmp = vga_rseq(NULL, 0x01);
430 if (on) {
431 /*
432 * Turn off screen and disable sequencer.
433 */
434 vga_wseq(NULL, 0x00, 0x01); /* Synchronous Reset */
435 vga_wseq(NULL, 0x01, tmp | 0x20); /* disable the display */
436
437 VGAenablePalette();
438 } else {
439 /*
440 * Reenable sequencer, then turn on screen.
441 */
442 vga_wseq(NULL, 0x01, tmp & ~0x20); /* reenable display */
443 vga_wseq(NULL, 0x00, 0x03); /* clear synchronousreset */
444
445 VGAdisablePalette();
446 }
447 }
448
449 static void vgaHWRestore(const struct fb_info *info,
450 const struct neofb_par *par)
451 {
452 int i;
453
454 vga_w(NULL, VGA_MIS_W, par->MiscOutReg);
455
456 for (i = 1; i < 5; i++)
457 vga_wseq(NULL, i, par->Sequencer[i]);
458
459 /* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 or CRTC[17] */
460 vga_wcrt(NULL, 17, par->CRTC[17] & ~0x80);
461
462 for (i = 0; i < 25; i++)
463 vga_wcrt(NULL, i, par->CRTC[i]);
464
465 for (i = 0; i < 9; i++)
466 vga_wgfx(NULL, i, par->Graphics[i]);
467
468 VGAenablePalette();
469
470 for (i = 0; i < 21; i++)
471 VGAwATTR(i, par->Attribute[i]);
472
473 VGAdisablePalette();
474 }
475
476
477 /* -------------------- Hardware specific routines ------------------------- */
478
479 /*
480 * Hardware Acceleration for Neo2200+
481 */
482 static inline int neo2200_sync(struct fb_info *info)
483 {
484 struct neofb_par *par = info->par;
485
486 while (readl(&par->neo2200->bltStat) & 1)
487 cpu_relax();
488 return 0;
489 }
490
491 static inline void neo2200_wait_fifo(struct fb_info *info,
492 int requested_fifo_space)
493 {
494 // ndev->neo.waitfifo_calls++;
495 // ndev->neo.waitfifo_sum += requested_fifo_space;
496
497 /* FIXME: does not work
498 if (neo_fifo_space < requested_fifo_space)
499 {
500 neo_fifo_waitcycles++;
501
502 while (1)
503 {
504 neo_fifo_space = (neo2200->bltStat >> 8);
505 if (neo_fifo_space >= requested_fifo_space)
506 break;
507 }
508 }
509 else
510 {
511 neo_fifo_cache_hits++;
512 }
513
514 neo_fifo_space -= requested_fifo_space;
515 */
516
517 neo2200_sync(info);
518 }
519
520 static inline void neo2200_accel_init(struct fb_info *info,
521 struct fb_var_screeninfo *var)
522 {
523 struct neofb_par *par = info->par;
524 Neo2200 __iomem *neo2200 = par->neo2200;
525 u32 bltMod, pitch;
526
527 neo2200_sync(info);
528
529 switch (var->bits_per_pixel) {
530 case 8:
531 bltMod = NEO_MODE1_DEPTH8;
532 pitch = var->xres_virtual;
533 break;
534 case 15:
535 case 16:
536 bltMod = NEO_MODE1_DEPTH16;
537 pitch = var->xres_virtual * 2;
538 break;
539 case 24:
540 bltMod = NEO_MODE1_DEPTH24;
541 pitch = var->xres_virtual * 3;
542 break;
543 default:
544 printk(KERN_ERR
545 "neofb: neo2200_accel_init: unexpected bits per pixel!\n");
546 return;
547 }
548
549 writel(bltMod << 16, &neo2200->bltStat);
550 writel((pitch << 16) | pitch, &neo2200->pitch);
551 }
552
553 /* --------------------------------------------------------------------- */
554
555 static int
556 neofb_open(struct fb_info *info, int user)
557 {
558 struct neofb_par *par = info->par;
559
560 if (!par->ref_count) {
561 memset(&par->state, 0, sizeof(struct vgastate));
562 par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS;
563 save_vga(&par->state);
564 }
565 par->ref_count++;
566
567 return 0;
568 }
569
570 static int
571 neofb_release(struct fb_info *info, int user)
572 {
573 struct neofb_par *par = info->par;
574
575 if (!par->ref_count)
576 return -EINVAL;
577
578 if (par->ref_count == 1) {
579 restore_vga(&par->state);
580 }
581 par->ref_count--;
582
583 return 0;
584 }
585
586 static int
587 neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
588 {
589 struct neofb_par *par = info->par;
590 int memlen, vramlen;
591 int mode_ok = 0;
592
593 DBG("neofb_check_var");
594
595 if (PICOS2KHZ(var->pixclock) > par->maxClock)
596 return -EINVAL;
597
598 /* Is the mode larger than the LCD panel? */
599 if (par->internal_display &&
600 ((var->xres > par->NeoPanelWidth) ||
601 (var->yres > par->NeoPanelHeight))) {
602 printk(KERN_INFO
603 "Mode (%dx%d) larger than the LCD panel (%dx%d)\n",
604 var->xres, var->yres, par->NeoPanelWidth,
605 par->NeoPanelHeight);
606 return -EINVAL;
607 }
608
609 /* Is the mode one of the acceptable sizes? */
610 if (!par->internal_display)
611 mode_ok = 1;
612 else {
613 switch (var->xres) {
614 case 1280:
615 if (var->yres == 1024)
616 mode_ok = 1;
617 break;
618 case 1024:
619 if (var->yres == 768)
620 mode_ok = 1;
621 break;
622 case 800:
623 if (var->yres == (par->libretto ? 480 : 600))
624 mode_ok = 1;
625 break;
626 case 640:
627 if (var->yres == 480)
628 mode_ok = 1;
629 break;
630 }
631 }
632
633 if (!mode_ok) {
634 printk(KERN_INFO
635 "Mode (%dx%d) won't display properly on LCD\n",
636 var->xres, var->yres);
637 return -EINVAL;
638 }
639
640 var->red.msb_right = 0;
641 var->green.msb_right = 0;
642 var->blue.msb_right = 0;
643 var->transp.msb_right = 0;
644
645 var->transp.offset = 0;
646 var->transp.length = 0;
647 switch (var->bits_per_pixel) {
648 case 8: /* PSEUDOCOLOUR, 256 */
649 var->red.offset = 0;
650 var->red.length = 8;
651 var->green.offset = 0;
652 var->green.length = 8;
653 var->blue.offset = 0;
654 var->blue.length = 8;
655 break;
656
657 case 16: /* DIRECTCOLOUR, 64k */
658 var->red.offset = 11;
659 var->red.length = 5;
660 var->green.offset = 5;
661 var->green.length = 6;
662 var->blue.offset = 0;
663 var->blue.length = 5;
664 break;
665
666 case 24: /* TRUECOLOUR, 16m */
667 var->red.offset = 16;
668 var->red.length = 8;
669 var->green.offset = 8;
670 var->green.length = 8;
671 var->blue.offset = 0;
672 var->blue.length = 8;
673 break;
674
675 #ifdef NO_32BIT_SUPPORT_YET
676 case 32: /* TRUECOLOUR, 16m */
677 var->transp.offset = 24;
678 var->transp.length = 8;
679 var->red.offset = 16;
680 var->red.length = 8;
681 var->green.offset = 8;
682 var->green.length = 8;
683 var->blue.offset = 0;
684 var->blue.length = 8;
685 break;
686 #endif
687 default:
688 printk(KERN_WARNING "neofb: no support for %dbpp\n",
689 var->bits_per_pixel);
690 return -EINVAL;
691 }
692
693 vramlen = info->fix.smem_len;
694 if (vramlen > 4 * 1024 * 1024)
695 vramlen = 4 * 1024 * 1024;
696
697 if (var->xres_virtual < var->xres)
698 var->xres_virtual = var->xres;
699
700 memlen = var->xres_virtual * var->bits_per_pixel * var->yres_virtual >> 3;
701
702 if (memlen > vramlen) {
703 var->yres_virtual = vramlen * 8 / (var->xres_virtual *
704 var->bits_per_pixel);
705 memlen = var->xres_virtual * var->bits_per_pixel *
706 var->yres_virtual / 8;
707 }
708
709 /* we must round yres/xres down, we already rounded y/xres_virtual up
710 if it was possible. We should return -EINVAL, but I disagree */
711 if (var->yres_virtual < var->yres)
712 var->yres = var->yres_virtual;
713 if (var->xoffset + var->xres > var->xres_virtual)
714 var->xoffset = var->xres_virtual - var->xres;
715 if (var->yoffset + var->yres > var->yres_virtual)
716 var->yoffset = var->yres_virtual - var->yres;
717
718 var->nonstd = 0;
719 var->height = -1;
720 var->width = -1;
721
722 if (var->bits_per_pixel >= 24 || !par->neo2200)
723 var->accel_flags &= ~FB_ACCELF_TEXT;
724 return 0;
725 }
726
727 static int neofb_set_par(struct fb_info *info)
728 {
729 struct neofb_par *par = info->par;
730 unsigned char temp;
731 int i, clock_hi = 0;
732 int lcd_stretch;
733 int hoffset, voffset;
734 int vsync_start, vtotal;
735
736 DBG("neofb_set_par");
737
738 neoUnlock();
739
740 vgaHWProtect(1); /* Blank the screen */
741
742 vsync_start = info->var.yres + info->var.lower_margin;
743 vtotal = vsync_start + info->var.vsync_len + info->var.upper_margin;
744
745 /*
746 * This will allocate the datastructure and initialize all of the
747 * generic VGA registers.
748 */
749
750 if (vgaHWInit(&info->var, par))
751 return -EINVAL;
752
753 /*
754 * The default value assigned by vgaHW.c is 0x41, but this does
755 * not work for NeoMagic.
756 */
757 par->Attribute[16] = 0x01;
758
759 switch (info->var.bits_per_pixel) {
760 case 8:
761 par->CRTC[0x13] = info->var.xres_virtual >> 3;
762 par->ExtCRTOffset = info->var.xres_virtual >> 11;
763 par->ExtColorModeSelect = 0x11;
764 break;
765 case 16:
766 par->CRTC[0x13] = info->var.xres_virtual >> 2;
767 par->ExtCRTOffset = info->var.xres_virtual >> 10;
768 par->ExtColorModeSelect = 0x13;
769 break;
770 case 24:
771 par->CRTC[0x13] = (info->var.xres_virtual * 3) >> 3;
772 par->ExtCRTOffset = (info->var.xres_virtual * 3) >> 11;
773 par->ExtColorModeSelect = 0x14;
774 break;
775 #ifdef NO_32BIT_SUPPORT_YET
776 case 32: /* FIXME: guessed values */
777 par->CRTC[0x13] = info->var.xres_virtual >> 1;
778 par->ExtCRTOffset = info->var.xres_virtual >> 9;
779 par->ExtColorModeSelect = 0x15;
780 break;
781 #endif
782 default:
783 break;
784 }
785
786 par->ExtCRTDispAddr = 0x10;
787
788 /* Vertical Extension */
789 par->VerticalExt = (((vtotal - 2) & 0x400) >> 10)
790 | (((info->var.yres - 1) & 0x400) >> 9)
791 | (((vsync_start) & 0x400) >> 8)
792 | (((vsync_start) & 0x400) >> 7);
793
794 /* Fast write bursts on unless disabled. */
795 if (par->pci_burst)
796 par->SysIfaceCntl1 = 0x30;
797 else
798 par->SysIfaceCntl1 = 0x00;
799
800 par->SysIfaceCntl2 = 0xc0; /* VESA Bios sets this to 0x80! */
801
802 /* Initialize: by default, we want display config register to be read */
803 par->PanelDispCntlRegRead = 1;
804
805 /* Enable any user specified display devices. */
806 par->PanelDispCntlReg1 = 0x00;
807 if (par->internal_display)
808 par->PanelDispCntlReg1 |= 0x02;
809 if (par->external_display)
810 par->PanelDispCntlReg1 |= 0x01;
811
812 /* If the user did not specify any display devices, then... */
813 if (par->PanelDispCntlReg1 == 0x00) {
814 /* Default to internal (i.e., LCD) only. */
815 par->PanelDispCntlReg1 = vga_rgfx(NULL, 0x20) & 0x03;
816 }
817
818 /* If we are using a fixed mode, then tell the chip we are. */
819 switch (info->var.xres) {
820 case 1280:
821 par->PanelDispCntlReg1 |= 0x60;
822 break;
823 case 1024:
824 par->PanelDispCntlReg1 |= 0x40;
825 break;
826 case 800:
827 par->PanelDispCntlReg1 |= 0x20;
828 break;
829 case 640:
830 default:
831 break;
832 }
833
834 /* Setup shadow register locking. */
835 switch (par->PanelDispCntlReg1 & 0x03) {
836 case 0x01: /* External CRT only mode: */
837 par->GeneralLockReg = 0x00;
838 /* We need to program the VCLK for external display only mode. */
839 par->ProgramVCLK = 1;
840 break;
841 case 0x02: /* Internal LCD only mode: */
842 case 0x03: /* Simultaneous internal/external (LCD/CRT) mode: */
843 par->GeneralLockReg = 0x01;
844 /* Don't program the VCLK when using the LCD. */
845 par->ProgramVCLK = 0;
846 break;
847 }
848
849 /*
850 * If the screen is to be stretched, turn on stretching for the
851 * various modes.
852 *
853 * OPTION_LCD_STRETCH means stretching should be turned off!
854 */
855 par->PanelDispCntlReg2 = 0x00;
856 par->PanelDispCntlReg3 = 0x00;
857
858 if (par->lcd_stretch && (par->PanelDispCntlReg1 == 0x02) && /* LCD only */
859 (info->var.xres != par->NeoPanelWidth)) {
860 switch (info->var.xres) {
861 case 320: /* Needs testing. KEM -- 24 May 98 */
862 case 400: /* Needs testing. KEM -- 24 May 98 */
863 case 640:
864 case 800:
865 case 1024:
866 lcd_stretch = 1;
867 par->PanelDispCntlReg2 |= 0xC6;
868 break;
869 default:
870 lcd_stretch = 0;
871 /* No stretching in these modes. */
872 }
873 } else
874 lcd_stretch = 0;
875
876 /*
877 * If the screen is to be centerd, turn on the centering for the
878 * various modes.
879 */
880 par->PanelVertCenterReg1 = 0x00;
881 par->PanelVertCenterReg2 = 0x00;
882 par->PanelVertCenterReg3 = 0x00;
883 par->PanelVertCenterReg4 = 0x00;
884 par->PanelVertCenterReg5 = 0x00;
885 par->PanelHorizCenterReg1 = 0x00;
886 par->PanelHorizCenterReg2 = 0x00;
887 par->PanelHorizCenterReg3 = 0x00;
888 par->PanelHorizCenterReg4 = 0x00;
889 par->PanelHorizCenterReg5 = 0x00;
890
891
892 if (par->PanelDispCntlReg1 & 0x02) {
893 if (info->var.xres == par->NeoPanelWidth) {
894 /*
895 * No centering required when the requested display width
896 * equals the panel width.
897 */
898 } else {
899 par->PanelDispCntlReg2 |= 0x01;
900 par->PanelDispCntlReg3 |= 0x10;
901
902 /* Calculate the horizontal and vertical offsets. */
903 if (!lcd_stretch) {
904 hoffset =
905 ((par->NeoPanelWidth -
906 info->var.xres) >> 4) - 1;
907 voffset =
908 ((par->NeoPanelHeight -
909 info->var.yres) >> 1) - 2;
910 } else {
911 /* Stretched modes cannot be centered. */
912 hoffset = 0;
913 voffset = 0;
914 }
915
916 switch (info->var.xres) {
917 case 320: /* Needs testing. KEM -- 24 May 98 */
918 par->PanelHorizCenterReg3 = hoffset;
919 par->PanelVertCenterReg2 = voffset;
920 break;
921 case 400: /* Needs testing. KEM -- 24 May 98 */
922 par->PanelHorizCenterReg4 = hoffset;
923 par->PanelVertCenterReg1 = voffset;
924 break;
925 case 640:
926 par->PanelHorizCenterReg1 = hoffset;
927 par->PanelVertCenterReg3 = voffset;
928 break;
929 case 800:
930 par->PanelHorizCenterReg2 = hoffset;
931 par->PanelVertCenterReg4 = voffset;
932 break;
933 case 1024:
934 par->PanelHorizCenterReg5 = hoffset;
935 par->PanelVertCenterReg5 = voffset;
936 break;
937 case 1280:
938 default:
939 /* No centering in these modes. */
940 break;
941 }
942 }
943 }
944
945 par->biosMode =
946 neoFindMode(info->var.xres, info->var.yres,
947 info->var.bits_per_pixel);
948
949 /*
950 * Calculate the VCLK that most closely matches the requested dot
951 * clock.
952 */
953 neoCalcVCLK(info, par, PICOS2KHZ(info->var.pixclock));
954
955 /* Since we program the clocks ourselves, always use VCLK3. */
956 par->MiscOutReg |= 0x0C;
957
958 /* alread unlocked above */
959 /* BOGUS vga_wgfx(NULL, 0x09, 0x26); */
960
961 /* don't know what this is, but it's 0 from bootup anyway */
962 vga_wgfx(NULL, 0x15, 0x00);
963
964 /* was set to 0x01 by my bios in text and vesa modes */
965 vga_wgfx(NULL, 0x0A, par->GeneralLockReg);
966
967 /*
968 * The color mode needs to be set before calling vgaHWRestore
969 * to ensure the DAC is initialized properly.
970 *
971 * NOTE: Make sure we don't change bits make sure we don't change
972 * any reserved bits.
973 */
974 temp = vga_rgfx(NULL, 0x90);
975 switch (info->fix.accel) {
976 case FB_ACCEL_NEOMAGIC_NM2070:
977 temp &= 0xF0; /* Save bits 7:4 */
978 temp |= (par->ExtColorModeSelect & ~0xF0);
979 break;
980 case FB_ACCEL_NEOMAGIC_NM2090:
981 case FB_ACCEL_NEOMAGIC_NM2093:
982 case FB_ACCEL_NEOMAGIC_NM2097:
983 case FB_ACCEL_NEOMAGIC_NM2160:
984 case FB_ACCEL_NEOMAGIC_NM2200:
985 case FB_ACCEL_NEOMAGIC_NM2230:
986 case FB_ACCEL_NEOMAGIC_NM2360:
987 case FB_ACCEL_NEOMAGIC_NM2380:
988 temp &= 0x70; /* Save bits 6:4 */
989 temp |= (par->ExtColorModeSelect & ~0x70);
990 break;
991 }
992
993 vga_wgfx(NULL, 0x90, temp);
994
995 /*
996 * In some rare cases a lockup might occur if we don't delay
997 * here. (Reported by Miles Lane)
998 */
999 //mdelay(200);
1000
1001 /*
1002 * Disable horizontal and vertical graphics and text expansions so
1003 * that vgaHWRestore works properly.
1004 */
1005 temp = vga_rgfx(NULL, 0x25);
1006 temp &= 0x39;
1007 vga_wgfx(NULL, 0x25, temp);
1008
1009 /*
1010 * Sleep for 200ms to make sure that the two operations above have
1011 * had time to take effect.
1012 */
1013 mdelay(200);
1014
1015 /*
1016 * This function handles restoring the generic VGA registers. */
1017 vgaHWRestore(info, par);
1018
1019 /* linear colormap for non palettized modes */
1020 switch (info->var.bits_per_pixel) {
1021 case 8:
1022 /* PseudoColor, 256 */
1023 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
1024 break;
1025 case 16:
1026 /* TrueColor, 64k */
1027 info->fix.visual = FB_VISUAL_TRUECOLOR;
1028
1029 for (i = 0; i < 64; i++) {
1030 outb(i, 0x3c8);
1031
1032 outb(i << 1, 0x3c9);
1033 outb(i, 0x3c9);
1034 outb(i << 1, 0x3c9);
1035 }
1036 break;
1037 case 24:
1038 #ifdef NO_32BIT_SUPPORT_YET
1039 case 32:
1040 #endif
1041 /* TrueColor, 16m */
1042 info->fix.visual = FB_VISUAL_TRUECOLOR;
1043
1044 for (i = 0; i < 256; i++) {
1045 outb(i, 0x3c8);
1046
1047 outb(i, 0x3c9);
1048 outb(i, 0x3c9);
1049 outb(i, 0x3c9);
1050 }
1051 break;
1052 }
1053
1054 vga_wgfx(NULL, 0x0E, par->ExtCRTDispAddr);
1055 vga_wgfx(NULL, 0x0F, par->ExtCRTOffset);
1056 temp = vga_rgfx(NULL, 0x10);
1057 temp &= 0x0F; /* Save bits 3:0 */
1058 temp |= (par->SysIfaceCntl1 & ~0x0F); /* VESA Bios sets bit 1! */
1059 vga_wgfx(NULL, 0x10, temp);
1060
1061 vga_wgfx(NULL, 0x11, par->SysIfaceCntl2);
1062 vga_wgfx(NULL, 0x15, 0 /*par->SingleAddrPage */ );
1063 vga_wgfx(NULL, 0x16, 0 /*par->DualAddrPage */ );
1064
1065 temp = vga_rgfx(NULL, 0x20);
1066 switch (info->fix.accel) {
1067 case FB_ACCEL_NEOMAGIC_NM2070:
1068 temp &= 0xFC; /* Save bits 7:2 */
1069 temp |= (par->PanelDispCntlReg1 & ~0xFC);
1070 break;
1071 case FB_ACCEL_NEOMAGIC_NM2090:
1072 case FB_ACCEL_NEOMAGIC_NM2093:
1073 case FB_ACCEL_NEOMAGIC_NM2097:
1074 case FB_ACCEL_NEOMAGIC_NM2160:
1075 temp &= 0xDC; /* Save bits 7:6,4:2 */
1076 temp |= (par->PanelDispCntlReg1 & ~0xDC);
1077 break;
1078 case FB_ACCEL_NEOMAGIC_NM2200:
1079 case FB_ACCEL_NEOMAGIC_NM2230:
1080 case FB_ACCEL_NEOMAGIC_NM2360:
1081 case FB_ACCEL_NEOMAGIC_NM2380:
1082 temp &= 0x98; /* Save bits 7,4:3 */
1083 temp |= (par->PanelDispCntlReg1 & ~0x98);
1084 break;
1085 }
1086 vga_wgfx(NULL, 0x20, temp);
1087
1088 temp = vga_rgfx(NULL, 0x25);
1089 temp &= 0x38; /* Save bits 5:3 */
1090 temp |= (par->PanelDispCntlReg2 & ~0x38);
1091 vga_wgfx(NULL, 0x25, temp);
1092
1093 if (info->fix.accel != FB_ACCEL_NEOMAGIC_NM2070) {
1094 temp = vga_rgfx(NULL, 0x30);
1095 temp &= 0xEF; /* Save bits 7:5 and bits 3:0 */
1096 temp |= (par->PanelDispCntlReg3 & ~0xEF);
1097 vga_wgfx(NULL, 0x30, temp);
1098 }
1099
1100 vga_wgfx(NULL, 0x28, par->PanelVertCenterReg1);
1101 vga_wgfx(NULL, 0x29, par->PanelVertCenterReg2);
1102 vga_wgfx(NULL, 0x2a, par->PanelVertCenterReg3);
1103
1104 if (info->fix.accel != FB_ACCEL_NEOMAGIC_NM2070) {
1105 vga_wgfx(NULL, 0x32, par->PanelVertCenterReg4);
1106 vga_wgfx(NULL, 0x33, par->PanelHorizCenterReg1);
1107 vga_wgfx(NULL, 0x34, par->PanelHorizCenterReg2);
1108 vga_wgfx(NULL, 0x35, par->PanelHorizCenterReg3);
1109 }
1110
1111 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2160)
1112 vga_wgfx(NULL, 0x36, par->PanelHorizCenterReg4);
1113
1114 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2200 ||
1115 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2230 ||
1116 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2360 ||
1117 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2380) {
1118 vga_wgfx(NULL, 0x36, par->PanelHorizCenterReg4);
1119 vga_wgfx(NULL, 0x37, par->PanelVertCenterReg5);
1120 vga_wgfx(NULL, 0x38, par->PanelHorizCenterReg5);
1121
1122 clock_hi = 1;
1123 }
1124
1125 /* Program VCLK3 if needed. */
1126 if (par->ProgramVCLK && ((vga_rgfx(NULL, 0x9B) != par->VCLK3NumeratorLow)
1127 || (vga_rgfx(NULL, 0x9F) != par->VCLK3Denominator)
1128 || (clock_hi && ((vga_rgfx(NULL, 0x8F) & ~0x0f)
1129 != (par->VCLK3NumeratorHigh &
1130 ~0x0F))))) {
1131 vga_wgfx(NULL, 0x9B, par->VCLK3NumeratorLow);
1132 if (clock_hi) {
1133 temp = vga_rgfx(NULL, 0x8F);
1134 temp &= 0x0F; /* Save bits 3:0 */
1135 temp |= (par->VCLK3NumeratorHigh & ~0x0F);
1136 vga_wgfx(NULL, 0x8F, temp);
1137 }
1138 vga_wgfx(NULL, 0x9F, par->VCLK3Denominator);
1139 }
1140
1141 if (par->biosMode)
1142 vga_wcrt(NULL, 0x23, par->biosMode);
1143
1144 vga_wgfx(NULL, 0x93, 0xc0); /* Gives 5x faster framebuffer writes !!! */
1145
1146 /* Program vertical extension register */
1147 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2200 ||
1148 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2230 ||
1149 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2360 ||
1150 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2380) {
1151 vga_wcrt(NULL, 0x70, par->VerticalExt);
1152 }
1153
1154 vgaHWProtect(0); /* Turn on screen */
1155
1156 /* Calling this also locks offset registers required in update_start */
1157 neoLock(&par->state);
1158
1159 info->fix.line_length =
1160 info->var.xres_virtual * (info->var.bits_per_pixel >> 3);
1161
1162 switch (info->fix.accel) {
1163 case FB_ACCEL_NEOMAGIC_NM2200:
1164 case FB_ACCEL_NEOMAGIC_NM2230:
1165 case FB_ACCEL_NEOMAGIC_NM2360:
1166 case FB_ACCEL_NEOMAGIC_NM2380:
1167 neo2200_accel_init(info, &info->var);
1168 break;
1169 default:
1170 break;
1171 }
1172 return 0;
1173 }
1174
1175 /*
1176 * Pan or Wrap the Display
1177 */
1178 static int neofb_pan_display(struct fb_var_screeninfo *var,
1179 struct fb_info *info)
1180 {
1181 struct neofb_par *par = info->par;
1182 struct vgastate *state = &par->state;
1183 int oldExtCRTDispAddr;
1184 int Base;
1185
1186 DBG("neofb_update_start");
1187
1188 Base = (var->yoffset * info->var.xres_virtual + var->xoffset) >> 2;
1189 Base *= (info->var.bits_per_pixel + 7) / 8;
1190
1191 neoUnlock();
1192
1193 /*
1194 * These are the generic starting address registers.
1195 */
1196 vga_wcrt(state->vgabase, 0x0C, (Base & 0x00FF00) >> 8);
1197 vga_wcrt(state->vgabase, 0x0D, (Base & 0x00FF));
1198
1199 /*
1200 * Make sure we don't clobber some other bits that might already
1201 * have been set. NOTE: NM2200 has a writable bit 3, but it shouldn't
1202 * be needed.
1203 */
1204 oldExtCRTDispAddr = vga_rgfx(NULL, 0x0E);
1205 vga_wgfx(state->vgabase, 0x0E, (((Base >> 16) & 0x0f) | (oldExtCRTDispAddr & 0xf0)));
1206
1207 neoLock(state);
1208
1209 return 0;
1210 }
1211
1212 static int neofb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
1213 u_int transp, struct fb_info *fb)
1214 {
1215 if (regno >= fb->cmap.len || regno > 255)
1216 return -EINVAL;
1217
1218 if (fb->var.bits_per_pixel <= 8) {
1219 outb(regno, 0x3c8);
1220
1221 outb(red >> 10, 0x3c9);
1222 outb(green >> 10, 0x3c9);
1223 outb(blue >> 10, 0x3c9);
1224 } else if (regno < 16) {
1225 switch (fb->var.bits_per_pixel) {
1226 case 16:
1227 ((u32 *) fb->pseudo_palette)[regno] =
1228 ((red & 0xf800)) | ((green & 0xfc00) >> 5) |
1229 ((blue & 0xf800) >> 11);
1230 break;
1231 case 24:
1232 ((u32 *) fb->pseudo_palette)[regno] =
1233 ((red & 0xff00) << 8) | ((green & 0xff00)) |
1234 ((blue & 0xff00) >> 8);
1235 break;
1236 #ifdef NO_32BIT_SUPPORT_YET
1237 case 32:
1238 ((u32 *) fb->pseudo_palette)[regno] =
1239 ((transp & 0xff00) << 16) | ((red & 0xff00) << 8) |
1240 ((green & 0xff00)) | ((blue & 0xff00) >> 8);
1241 break;
1242 #endif
1243 default:
1244 return 1;
1245 }
1246 }
1247
1248 return 0;
1249 }
1250
1251 /*
1252 * (Un)Blank the display.
1253 */
1254 static int neofb_blank(int blank_mode, struct fb_info *info)
1255 {
1256 /*
1257 * Blank the screen if blank_mode != 0, else unblank.
1258 * Return 0 if blanking succeeded, != 0 if un-/blanking failed due to
1259 * e.g. a video mode which doesn't support it. Implements VESA suspend
1260 * and powerdown modes for monitors, and backlight control on LCDs.
1261 * blank_mode == 0: unblanked (backlight on)
1262 * blank_mode == 1: blank (backlight on)
1263 * blank_mode == 2: suspend vsync (backlight off)
1264 * blank_mode == 3: suspend hsync (backlight off)
1265 * blank_mode == 4: powerdown (backlight off)
1266 *
1267 * wms...Enable VESA DPMS compatible powerdown mode
1268 * run "setterm -powersave powerdown" to take advantage
1269 */
1270 struct neofb_par *par = info->par;
1271 int seqflags, lcdflags, dpmsflags, reg, tmpdisp;
1272
1273 /*
1274 * Read back the register bits related to display configuration. They might
1275 * have been changed underneath the driver via Fn key stroke.
1276 */
1277 neoUnlock();
1278 tmpdisp = vga_rgfx(NULL, 0x20) & 0x03;
1279 neoLock(&par->state);
1280
1281 /* In case we blank the screen, we want to store the possibly new
1282 * configuration in the driver. During un-blank, we re-apply this setting,
1283 * since the LCD bit will be cleared in order to switch off the backlight.
1284 */
1285 if (par->PanelDispCntlRegRead) {
1286 par->PanelDispCntlReg1 = tmpdisp;
1287 }
1288 par->PanelDispCntlRegRead = !blank_mode;
1289
1290 switch (blank_mode) {
1291 case FB_BLANK_POWERDOWN: /* powerdown - both sync lines down */
1292 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
1293 lcdflags = 0; /* LCD off */
1294 dpmsflags = NEO_GR01_SUPPRESS_HSYNC |
1295 NEO_GR01_SUPPRESS_VSYNC;
1296 #ifdef CONFIG_TOSHIBA
1297 /* Do we still need this ? */
1298 /* attempt to turn off backlight on toshiba; also turns off external */
1299 {
1300 SMMRegisters regs;
1301
1302 regs.eax = 0xff00; /* HCI_SET */
1303 regs.ebx = 0x0002; /* HCI_BACKLIGHT */
1304 regs.ecx = 0x0000; /* HCI_DISABLE */
1305 tosh_smm(&regs);
1306 }
1307 #endif
1308 break;
1309 case FB_BLANK_HSYNC_SUSPEND: /* hsync off */
1310 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
1311 lcdflags = 0; /* LCD off */
1312 dpmsflags = NEO_GR01_SUPPRESS_HSYNC;
1313 break;
1314 case FB_BLANK_VSYNC_SUSPEND: /* vsync off */
1315 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
1316 lcdflags = 0; /* LCD off */
1317 dpmsflags = NEO_GR01_SUPPRESS_VSYNC;
1318 break;
1319 case FB_BLANK_NORMAL: /* just blank screen (backlight stays on) */
1320 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
1321 /*
1322 * During a blank operation with the LID shut, we might store "LCD off"
1323 * by mistake. Due to timing issues, the BIOS may switch the lights
1324 * back on, and we turn it back off once we "unblank".
1325 *
1326 * So here is an attempt to implement ">=" - if we are in the process
1327 * of unblanking, and the LCD bit is unset in the driver but set in the
1328 * register, we must keep it.
1329 */
1330 lcdflags = ((par->PanelDispCntlReg1 | tmpdisp) & 0x02); /* LCD normal */
1331 dpmsflags = 0x00; /* no hsync/vsync suppression */
1332 break;
1333 case FB_BLANK_UNBLANK: /* unblank */
1334 seqflags = 0; /* Enable sequencer */
1335 lcdflags = ((par->PanelDispCntlReg1 | tmpdisp) & 0x02); /* LCD normal */
1336 dpmsflags = 0x00; /* no hsync/vsync suppression */
1337 #ifdef CONFIG_TOSHIBA
1338 /* Do we still need this ? */
1339 /* attempt to re-enable backlight/external on toshiba */
1340 {
1341 SMMRegisters regs;
1342
1343 regs.eax = 0xff00; /* HCI_SET */
1344 regs.ebx = 0x0002; /* HCI_BACKLIGHT */
1345 regs.ecx = 0x0001; /* HCI_ENABLE */
1346 tosh_smm(&regs);
1347 }
1348 #endif
1349 break;
1350 default: /* Anything else we don't understand; return 1 to tell
1351 * fb_blank we didn't aactually do anything */
1352 return 1;
1353 }
1354
1355 neoUnlock();
1356 reg = (vga_rseq(NULL, 0x01) & ~0x20) | seqflags;
1357 vga_wseq(NULL, 0x01, reg);
1358 reg = (vga_rgfx(NULL, 0x20) & ~0x02) | lcdflags;
1359 vga_wgfx(NULL, 0x20, reg);
1360 reg = (vga_rgfx(NULL, 0x01) & ~0xF0) | 0x80 | dpmsflags;
1361 vga_wgfx(NULL, 0x01, reg);
1362 neoLock(&par->state);
1363 return 0;
1364 }
1365
1366 static void
1367 neo2200_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
1368 {
1369 struct neofb_par *par = info->par;
1370 u_long dst, rop;
1371
1372 dst = rect->dx + rect->dy * info->var.xres_virtual;
1373 rop = rect->rop ? 0x060000 : 0x0c0000;
1374
1375 neo2200_wait_fifo(info, 4);
1376
1377 /* set blt control */
1378 writel(NEO_BC3_FIFO_EN |
1379 NEO_BC0_SRC_IS_FG | NEO_BC3_SKIP_MAPPING |
1380 // NEO_BC3_DST_XY_ADDR |
1381 // NEO_BC3_SRC_XY_ADDR |
1382 rop, &par->neo2200->bltCntl);
1383
1384 switch (info->var.bits_per_pixel) {
1385 case 8:
1386 writel(rect->color, &par->neo2200->fgColor);
1387 break;
1388 case 16:
1389 case 24:
1390 writel(((u32 *) (info->pseudo_palette))[rect->color],
1391 &par->neo2200->fgColor);
1392 break;
1393 }
1394
1395 writel(dst * ((info->var.bits_per_pixel + 7) >> 3),
1396 &par->neo2200->dstStart);
1397 writel((rect->height << 16) | (rect->width & 0xffff),
1398 &par->neo2200->xyExt);
1399 }
1400
1401 static void
1402 neo2200_copyarea(struct fb_info *info, const struct fb_copyarea *area)
1403 {
1404 u32 sx = area->sx, sy = area->sy, dx = area->dx, dy = area->dy;
1405 struct neofb_par *par = info->par;
1406 u_long src, dst, bltCntl;
1407
1408 bltCntl = NEO_BC3_FIFO_EN | NEO_BC3_SKIP_MAPPING | 0x0C0000;
1409
1410 if ((dy > sy) || ((dy == sy) && (dx > sx))) {
1411 /* Start with the lower right corner */
1412 sy += (area->height - 1);
1413 dy += (area->height - 1);
1414 sx += (area->width - 1);
1415 dx += (area->width - 1);
1416
1417 bltCntl |= NEO_BC0_X_DEC | NEO_BC0_DST_Y_DEC | NEO_BC0_SRC_Y_DEC;
1418 }
1419
1420 src = sx * (info->var.bits_per_pixel >> 3) + sy*info->fix.line_length;
1421 dst = dx * (info->var.bits_per_pixel >> 3) + dy*info->fix.line_length;
1422
1423 neo2200_wait_fifo(info, 4);
1424
1425 /* set blt control */
1426 writel(bltCntl, &par->neo2200->bltCntl);
1427
1428 writel(src, &par->neo2200->srcStart);
1429 writel(dst, &par->neo2200->dstStart);
1430 writel((area->height << 16) | (area->width & 0xffff),
1431 &par->neo2200->xyExt);
1432 }
1433
1434 static void
1435 neo2200_imageblit(struct fb_info *info, const struct fb_image *image)
1436 {
1437 struct neofb_par *par = info->par;
1438 int s_pitch = (image->width * image->depth + 7) >> 3;
1439 int scan_align = info->pixmap.scan_align - 1;
1440 int buf_align = info->pixmap.buf_align - 1;
1441 int bltCntl_flags, d_pitch, data_len;
1442
1443 // The data is padded for the hardware
1444 d_pitch = (s_pitch + scan_align) & ~scan_align;
1445 data_len = ((d_pitch * image->height) + buf_align) & ~buf_align;
1446
1447 neo2200_sync(info);
1448
1449 if (image->depth == 1) {
1450 if (info->var.bits_per_pixel == 24 && image->width < 16) {
1451 /* FIXME. There is a bug with accelerated color-expanded
1452 * transfers in 24 bit mode if the image being transferred
1453 * is less than 16 bits wide. This is due to insufficient
1454 * padding when writing the image. We need to adjust
1455 * struct fb_pixmap. Not yet done. */
1456 cfb_imageblit(info, image);
1457 return;
1458 }
1459 bltCntl_flags = NEO_BC0_SRC_MONO;
1460 } else if (image->depth == info->var.bits_per_pixel) {
1461 bltCntl_flags = 0;
1462 } else {
1463 /* We don't currently support hardware acceleration if image
1464 * depth is different from display */
1465 cfb_imageblit(info, image);
1466 return;
1467 }
1468
1469 switch (info->var.bits_per_pixel) {
1470 case 8:
1471 writel(image->fg_color, &par->neo2200->fgColor);
1472 writel(image->bg_color, &par->neo2200->bgColor);
1473 break;
1474 case 16:
1475 case 24:
1476 writel(((u32 *) (info->pseudo_palette))[image->fg_color],
1477 &par->neo2200->fgColor);
1478 writel(((u32 *) (info->pseudo_palette))[image->bg_color],
1479 &par->neo2200->bgColor);
1480 break;
1481 }
1482
1483 writel(NEO_BC0_SYS_TO_VID |
1484 NEO_BC3_SKIP_MAPPING | bltCntl_flags |
1485 // NEO_BC3_DST_XY_ADDR |
1486 0x0c0000, &par->neo2200->bltCntl);
1487
1488 writel(0, &par->neo2200->srcStart);
1489 // par->neo2200->dstStart = (image->dy << 16) | (image->dx & 0xffff);
1490 writel(((image->dx & 0xffff) * (info->var.bits_per_pixel >> 3) +
1491 image->dy * info->fix.line_length), &par->neo2200->dstStart);
1492 writel((image->height << 16) | (image->width & 0xffff),
1493 &par->neo2200->xyExt);
1494
1495 memcpy_toio(par->mmio_vbase + 0x100000, image->data, data_len);
1496 }
1497
1498 static void
1499 neofb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
1500 {
1501 switch (info->fix.accel) {
1502 case FB_ACCEL_NEOMAGIC_NM2200:
1503 case FB_ACCEL_NEOMAGIC_NM2230:
1504 case FB_ACCEL_NEOMAGIC_NM2360:
1505 case FB_ACCEL_NEOMAGIC_NM2380:
1506 neo2200_fillrect(info, rect);
1507 break;
1508 default:
1509 cfb_fillrect(info, rect);
1510 break;
1511 }
1512 }
1513
1514 static void
1515 neofb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
1516 {
1517 switch (info->fix.accel) {
1518 case FB_ACCEL_NEOMAGIC_NM2200:
1519 case FB_ACCEL_NEOMAGIC_NM2230:
1520 case FB_ACCEL_NEOMAGIC_NM2360:
1521 case FB_ACCEL_NEOMAGIC_NM2380:
1522 neo2200_copyarea(info, area);
1523 break;
1524 default:
1525 cfb_copyarea(info, area);
1526 break;
1527 }
1528 }
1529
1530 static void
1531 neofb_imageblit(struct fb_info *info, const struct fb_image *image)
1532 {
1533 switch (info->fix.accel) {
1534 case FB_ACCEL_NEOMAGIC_NM2200:
1535 case FB_ACCEL_NEOMAGIC_NM2230:
1536 case FB_ACCEL_NEOMAGIC_NM2360:
1537 case FB_ACCEL_NEOMAGIC_NM2380:
1538 neo2200_imageblit(info, image);
1539 break;
1540 default:
1541 cfb_imageblit(info, image);
1542 break;
1543 }
1544 }
1545
1546 static int
1547 neofb_sync(struct fb_info *info)
1548 {
1549 switch (info->fix.accel) {
1550 case FB_ACCEL_NEOMAGIC_NM2200:
1551 case FB_ACCEL_NEOMAGIC_NM2230:
1552 case FB_ACCEL_NEOMAGIC_NM2360:
1553 case FB_ACCEL_NEOMAGIC_NM2380:
1554 neo2200_sync(info);
1555 break;
1556 default:
1557 break;
1558 }
1559 return 0;
1560 }
1561
1562 /*
1563 static void
1564 neofb_draw_cursor(struct fb_info *info, u8 *dst, u8 *src, unsigned int width)
1565 {
1566 //memset_io(info->sprite.addr, 0xff, 1);
1567 }
1568
1569 static int
1570 neofb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1571 {
1572 struct neofb_par *par = (struct neofb_par *) info->par;
1573
1574 * Disable cursor *
1575 write_le32(NEOREG_CURSCNTL, ~NEO_CURS_ENABLE, par);
1576
1577 if (cursor->set & FB_CUR_SETPOS) {
1578 u32 x = cursor->image.dx;
1579 u32 y = cursor->image.dy;
1580
1581 info->cursor.image.dx = x;
1582 info->cursor.image.dy = y;
1583 write_le32(NEOREG_CURSX, x, par);
1584 write_le32(NEOREG_CURSY, y, par);
1585 }
1586
1587 if (cursor->set & FB_CUR_SETSIZE) {
1588 info->cursor.image.height = cursor->image.height;
1589 info->cursor.image.width = cursor->image.width;
1590 }
1591
1592 if (cursor->set & FB_CUR_SETHOT)
1593 info->cursor.hot = cursor->hot;
1594
1595 if (cursor->set & FB_CUR_SETCMAP) {
1596 if (cursor->image.depth == 1) {
1597 u32 fg = cursor->image.fg_color;
1598 u32 bg = cursor->image.bg_color;
1599
1600 info->cursor.image.fg_color = fg;
1601 info->cursor.image.bg_color = bg;
1602
1603 fg = ((fg & 0xff0000) >> 16) | ((fg & 0xff) << 16) | (fg & 0xff00);
1604 bg = ((bg & 0xff0000) >> 16) | ((bg & 0xff) << 16) | (bg & 0xff00);
1605 write_le32(NEOREG_CURSFGCOLOR, fg, par);
1606 write_le32(NEOREG_CURSBGCOLOR, bg, par);
1607 }
1608 }
1609
1610 if (cursor->set & FB_CUR_SETSHAPE)
1611 fb_load_cursor_image(info);
1612
1613 if (info->cursor.enable)
1614 write_le32(NEOREG_CURSCNTL, NEO_CURS_ENABLE, par);
1615 return 0;
1616 }
1617 */
1618
1619 static struct fb_ops neofb_ops = {
1620 .owner = THIS_MODULE,
1621 .fb_open = neofb_open,
1622 .fb_release = neofb_release,
1623 .fb_check_var = neofb_check_var,
1624 .fb_set_par = neofb_set_par,
1625 .fb_setcolreg = neofb_setcolreg,
1626 .fb_pan_display = neofb_pan_display,
1627 .fb_blank = neofb_blank,
1628 .fb_sync = neofb_sync,
1629 .fb_fillrect = neofb_fillrect,
1630 .fb_copyarea = neofb_copyarea,
1631 .fb_imageblit = neofb_imageblit,
1632 };
1633
1634 /* --------------------------------------------------------------------- */
1635
1636 static struct fb_videomode __devinitdata mode800x480 = {
1637 .xres = 800,
1638 .yres = 480,
1639 .pixclock = 25000,
1640 .left_margin = 88,
1641 .right_margin = 40,
1642 .upper_margin = 23,
1643 .lower_margin = 1,
1644 .hsync_len = 128,
1645 .vsync_len = 4,
1646 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
1647 .vmode = FB_VMODE_NONINTERLACED
1648 };
1649
1650 static int __devinit neo_map_mmio(struct fb_info *info,
1651 struct pci_dev *dev)
1652 {
1653 struct neofb_par *par = info->par;
1654
1655 DBG("neo_map_mmio");
1656
1657 switch (info->fix.accel) {
1658 case FB_ACCEL_NEOMAGIC_NM2070:
1659 info->fix.mmio_start = pci_resource_start(dev, 0)+
1660 0x100000;
1661 break;
1662 case FB_ACCEL_NEOMAGIC_NM2090:
1663 case FB_ACCEL_NEOMAGIC_NM2093:
1664 info->fix.mmio_start = pci_resource_start(dev, 0)+
1665 0x200000;
1666 break;
1667 case FB_ACCEL_NEOMAGIC_NM2160:
1668 case FB_ACCEL_NEOMAGIC_NM2097:
1669 case FB_ACCEL_NEOMAGIC_NM2200:
1670 case FB_ACCEL_NEOMAGIC_NM2230:
1671 case FB_ACCEL_NEOMAGIC_NM2360:
1672 case FB_ACCEL_NEOMAGIC_NM2380:
1673 info->fix.mmio_start = pci_resource_start(dev, 1);
1674 break;
1675 default:
1676 info->fix.mmio_start = pci_resource_start(dev, 0);
1677 }
1678 info->fix.mmio_len = MMIO_SIZE;
1679
1680 if (!request_mem_region
1681 (info->fix.mmio_start, MMIO_SIZE, "memory mapped I/O")) {
1682 printk("neofb: memory mapped IO in use\n");
1683 return -EBUSY;
1684 }
1685
1686 par->mmio_vbase = ioremap(info->fix.mmio_start, MMIO_SIZE);
1687 if (!par->mmio_vbase) {
1688 printk("neofb: unable to map memory mapped IO\n");
1689 release_mem_region(info->fix.mmio_start,
1690 info->fix.mmio_len);
1691 return -ENOMEM;
1692 } else
1693 printk(KERN_INFO "neofb: mapped io at %p\n",
1694 par->mmio_vbase);
1695 return 0;
1696 }
1697
1698 static void neo_unmap_mmio(struct fb_info *info)
1699 {
1700 struct neofb_par *par = info->par;
1701
1702 DBG("neo_unmap_mmio");
1703
1704 iounmap(par->mmio_vbase);
1705 par->mmio_vbase = NULL;
1706
1707 release_mem_region(info->fix.mmio_start,
1708 info->fix.mmio_len);
1709 }
1710
1711 static int __devinit neo_map_video(struct fb_info *info,
1712 struct pci_dev *dev, int video_len)
1713 {
1714 //unsigned long addr;
1715
1716 DBG("neo_map_video");
1717
1718 info->fix.smem_start = pci_resource_start(dev, 0);
1719 info->fix.smem_len = video_len;
1720
1721 if (!request_mem_region(info->fix.smem_start, info->fix.smem_len,
1722 "frame buffer")) {
1723 printk("neofb: frame buffer in use\n");
1724 return -EBUSY;
1725 }
1726
1727 info->screen_base =
1728 ioremap(info->fix.smem_start, info->fix.smem_len);
1729 if (!info->screen_base) {
1730 printk("neofb: unable to map screen memory\n");
1731 release_mem_region(info->fix.smem_start,
1732 info->fix.smem_len);
1733 return -ENOMEM;
1734 } else
1735 printk(KERN_INFO "neofb: mapped framebuffer at %p\n",
1736 info->screen_base);
1737
1738 #ifdef CONFIG_MTRR
1739 ((struct neofb_par *)(info->par))->mtrr =
1740 mtrr_add(info->fix.smem_start, pci_resource_len(dev, 0),
1741 MTRR_TYPE_WRCOMB, 1);
1742 #endif
1743
1744 /* Clear framebuffer, it's all white in memory after boot */
1745 memset_io(info->screen_base, 0, info->fix.smem_len);
1746
1747 /* Allocate Cursor drawing pad.
1748 info->fix.smem_len -= PAGE_SIZE;
1749 addr = info->fix.smem_start + info->fix.smem_len;
1750 write_le32(NEOREG_CURSMEMPOS, ((0x000f & (addr >> 10)) << 8) |
1751 ((0x0ff0 & (addr >> 10)) >> 4), par);
1752 addr = (unsigned long) info->screen_base + info->fix.smem_len;
1753 info->sprite.addr = (u8 *) addr; */
1754 return 0;
1755 }
1756
1757 static void neo_unmap_video(struct fb_info *info)
1758 {
1759 DBG("neo_unmap_video");
1760
1761 #ifdef CONFIG_MTRR
1762 {
1763 struct neofb_par *par = info->par;
1764
1765 mtrr_del(par->mtrr, info->fix.smem_start,
1766 info->fix.smem_len);
1767 }
1768 #endif
1769 iounmap(info->screen_base);
1770 info->screen_base = NULL;
1771
1772 release_mem_region(info->fix.smem_start,
1773 info->fix.smem_len);
1774 }
1775
1776 static int __devinit neo_scan_monitor(struct fb_info *info)
1777 {
1778 struct neofb_par *par = info->par;
1779 unsigned char type, display;
1780 int w;
1781
1782 // Eventually we will have i2c support.
1783 info->monspecs.modedb = kmalloc(sizeof(struct fb_videomode), GFP_KERNEL);
1784 if (!info->monspecs.modedb)
1785 return -ENOMEM;
1786 info->monspecs.modedb_len = 1;
1787
1788 /* Determine the panel type */
1789 vga_wgfx(NULL, 0x09, 0x26);
1790 type = vga_rgfx(NULL, 0x21);
1791 display = vga_rgfx(NULL, 0x20);
1792 if (!par->internal_display && !par->external_display) {
1793 par->internal_display = display & 2 || !(display & 3) ? 1 : 0;
1794 par->external_display = display & 1;
1795 printk (KERN_INFO "Autodetected %s display\n",
1796 par->internal_display && par->external_display ? "simultaneous" :
1797 par->internal_display ? "internal" : "external");
1798 }
1799
1800 /* Determine panel width -- used in NeoValidMode. */
1801 w = vga_rgfx(NULL, 0x20);
1802 vga_wgfx(NULL, 0x09, 0x00);
1803 switch ((w & 0x18) >> 3) {
1804 case 0x00:
1805 // 640x480@60
1806 par->NeoPanelWidth = 640;
1807 par->NeoPanelHeight = 480;
1808 memcpy(info->monspecs.modedb, &vesa_modes[3], sizeof(struct fb_videomode));
1809 break;
1810 case 0x01:
1811 par->NeoPanelWidth = 800;
1812 if (par->libretto) {
1813 par->NeoPanelHeight = 480;
1814 memcpy(info->monspecs.modedb, &mode800x480, sizeof(struct fb_videomode));
1815 } else {
1816 // 800x600@60
1817 par->NeoPanelHeight = 600;
1818 memcpy(info->monspecs.modedb, &vesa_modes[8], sizeof(struct fb_videomode));
1819 }
1820 break;
1821 case 0x02:
1822 // 1024x768@60
1823 par->NeoPanelWidth = 1024;
1824 par->NeoPanelHeight = 768;
1825 memcpy(info->monspecs.modedb, &vesa_modes[13], sizeof(struct fb_videomode));
1826 break;
1827 case 0x03:
1828 /* 1280x1024@60 panel support needs to be added */
1829 #ifdef NOT_DONE
1830 par->NeoPanelWidth = 1280;
1831 par->NeoPanelHeight = 1024;
1832 memcpy(info->monspecs.modedb, &vesa_modes[20], sizeof(struct fb_videomode));
1833 break;
1834 #else
1835 printk(KERN_ERR
1836 "neofb: Only 640x480, 800x600/480 and 1024x768 panels are currently supported\n");
1837 return -1;
1838 #endif
1839 default:
1840 // 640x480@60
1841 par->NeoPanelWidth = 640;
1842 par->NeoPanelHeight = 480;
1843 memcpy(info->monspecs.modedb, &vesa_modes[3], sizeof(struct fb_videomode));
1844 break;
1845 }
1846
1847 printk(KERN_INFO "Panel is a %dx%d %s %s display\n",
1848 par->NeoPanelWidth,
1849 par->NeoPanelHeight,
1850 (type & 0x02) ? "color" : "monochrome",
1851 (type & 0x10) ? "TFT" : "dual scan");
1852 return 0;
1853 }
1854
1855 static int __devinit neo_init_hw(struct fb_info *info)
1856 {
1857 struct neofb_par *par = info->par;
1858 int videoRam = 896;
1859 int maxClock = 65000;
1860 int CursorMem = 1024;
1861 int CursorOff = 0x100;
1862
1863 DBG("neo_init_hw");
1864
1865 neoUnlock();
1866
1867 #if 0
1868 printk(KERN_DEBUG "--- Neo extended register dump ---\n");
1869 for (int w = 0; w < 0x85; w++)
1870 printk(KERN_DEBUG "CR %p: %p\n", (void *) w,
1871 (void *) vga_rcrt(NULL, w));
1872 for (int w = 0; w < 0xC7; w++)
1873 printk(KERN_DEBUG "GR %p: %p\n", (void *) w,
1874 (void *) vga_rgfx(NULL, w));
1875 #endif
1876 switch (info->fix.accel) {
1877 case FB_ACCEL_NEOMAGIC_NM2070:
1878 videoRam = 896;
1879 maxClock = 65000;
1880 break;
1881 case FB_ACCEL_NEOMAGIC_NM2090:
1882 case FB_ACCEL_NEOMAGIC_NM2093:
1883 case FB_ACCEL_NEOMAGIC_NM2097:
1884 videoRam = 1152;
1885 maxClock = 80000;
1886 break;
1887 case FB_ACCEL_NEOMAGIC_NM2160:
1888 videoRam = 2048;
1889 maxClock = 90000;
1890 break;
1891 case FB_ACCEL_NEOMAGIC_NM2200:
1892 videoRam = 2560;
1893 maxClock = 110000;
1894 break;
1895 case FB_ACCEL_NEOMAGIC_NM2230:
1896 videoRam = 3008;
1897 maxClock = 110000;
1898 break;
1899 case FB_ACCEL_NEOMAGIC_NM2360:
1900 videoRam = 4096;
1901 maxClock = 110000;
1902 break;
1903 case FB_ACCEL_NEOMAGIC_NM2380:
1904 videoRam = 6144;
1905 maxClock = 110000;
1906 break;
1907 }
1908 switch (info->fix.accel) {
1909 case FB_ACCEL_NEOMAGIC_NM2070:
1910 case FB_ACCEL_NEOMAGIC_NM2090:
1911 case FB_ACCEL_NEOMAGIC_NM2093:
1912 CursorMem = 2048;
1913 CursorOff = 0x100;
1914 break;
1915 case FB_ACCEL_NEOMAGIC_NM2097:
1916 case FB_ACCEL_NEOMAGIC_NM2160:
1917 CursorMem = 1024;
1918 CursorOff = 0x100;
1919 break;
1920 case FB_ACCEL_NEOMAGIC_NM2200:
1921 case FB_ACCEL_NEOMAGIC_NM2230:
1922 case FB_ACCEL_NEOMAGIC_NM2360:
1923 case FB_ACCEL_NEOMAGIC_NM2380:
1924 CursorMem = 1024;
1925 CursorOff = 0x1000;
1926
1927 par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase;
1928 break;
1929 }
1930 /*
1931 info->sprite.size = CursorMem;
1932 info->sprite.scan_align = 1;
1933 info->sprite.buf_align = 1;
1934 info->sprite.flags = FB_PIXMAP_IO;
1935 info->sprite.outbuf = neofb_draw_cursor;
1936 */
1937 par->maxClock = maxClock;
1938 par->cursorOff = CursorOff;
1939 return videoRam * 1024;
1940 }
1941
1942
1943 static struct fb_info *__devinit neo_alloc_fb_info(struct pci_dev *dev, const struct
1944 pci_device_id *id)
1945 {
1946 struct fb_info *info;
1947 struct neofb_par *par;
1948
1949 info = framebuffer_alloc(sizeof(struct neofb_par), &dev->dev);
1950
1951 if (!info)
1952 return NULL;
1953
1954 par = info->par;
1955
1956 info->fix.accel = id->driver_data;
1957
1958 par->pci_burst = !nopciburst;
1959 par->lcd_stretch = !nostretch;
1960 par->libretto = libretto;
1961
1962 par->internal_display = internal;
1963 par->external_display = external;
1964 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1965
1966 switch (info->fix.accel) {
1967 case FB_ACCEL_NEOMAGIC_NM2070:
1968 snprintf(info->fix.id, sizeof(info->fix.id),
1969 "MagicGraph 128");
1970 break;
1971 case FB_ACCEL_NEOMAGIC_NM2090:
1972 snprintf(info->fix.id, sizeof(info->fix.id),
1973 "MagicGraph 128V");
1974 break;
1975 case FB_ACCEL_NEOMAGIC_NM2093:
1976 snprintf(info->fix.id, sizeof(info->fix.id),
1977 "MagicGraph 128ZV");
1978 break;
1979 case FB_ACCEL_NEOMAGIC_NM2097:
1980 snprintf(info->fix.id, sizeof(info->fix.id),
1981 "MagicGraph 128ZV+");
1982 break;
1983 case FB_ACCEL_NEOMAGIC_NM2160:
1984 snprintf(info->fix.id, sizeof(info->fix.id),
1985 "MagicGraph 128XD");
1986 break;
1987 case FB_ACCEL_NEOMAGIC_NM2200:
1988 snprintf(info->fix.id, sizeof(info->fix.id),
1989 "MagicGraph 256AV");
1990 info->flags |= FBINFO_HWACCEL_IMAGEBLIT |
1991 FBINFO_HWACCEL_COPYAREA |
1992 FBINFO_HWACCEL_FILLRECT;
1993 break;
1994 case FB_ACCEL_NEOMAGIC_NM2230:
1995 snprintf(info->fix.id, sizeof(info->fix.id),
1996 "MagicGraph 256AV+");
1997 info->flags |= FBINFO_HWACCEL_IMAGEBLIT |
1998 FBINFO_HWACCEL_COPYAREA |
1999 FBINFO_HWACCEL_FILLRECT;
2000 break;
2001 case FB_ACCEL_NEOMAGIC_NM2360:
2002 snprintf(info->fix.id, sizeof(info->fix.id),
2003 "MagicGraph 256ZX");
2004 info->flags |= FBINFO_HWACCEL_IMAGEBLIT |
2005 FBINFO_HWACCEL_COPYAREA |
2006 FBINFO_HWACCEL_FILLRECT;
2007 break;
2008 case FB_ACCEL_NEOMAGIC_NM2380:
2009 snprintf(info->fix.id, sizeof(info->fix.id),
2010 "MagicGraph 256XL+");
2011 info->flags |= FBINFO_HWACCEL_IMAGEBLIT |
2012 FBINFO_HWACCEL_COPYAREA |
2013 FBINFO_HWACCEL_FILLRECT;
2014 break;
2015 }
2016
2017 info->fix.type = FB_TYPE_PACKED_PIXELS;
2018 info->fix.type_aux = 0;
2019 info->fix.xpanstep = 0;
2020 info->fix.ypanstep = 4;
2021 info->fix.ywrapstep = 0;
2022 info->fix.accel = id->driver_data;
2023
2024 info->fbops = &neofb_ops;
2025 info->pseudo_palette = par->palette;
2026 return info;
2027 }
2028
2029 static void neo_free_fb_info(struct fb_info *info)
2030 {
2031 if (info) {
2032 /*
2033 * Free the colourmap
2034 */
2035 fb_dealloc_cmap(&info->cmap);
2036 framebuffer_release(info);
2037 }
2038 }
2039
2040 /* --------------------------------------------------------------------- */
2041
2042 static int __devinit neofb_probe(struct pci_dev *dev,
2043 const struct pci_device_id *id)
2044 {
2045 struct fb_info *info;
2046 u_int h_sync, v_sync;
2047 int video_len, err;
2048
2049 DBG("neofb_probe");
2050
2051 err = pci_enable_device(dev);
2052 if (err)
2053 return err;
2054
2055 err = -ENOMEM;
2056 info = neo_alloc_fb_info(dev, id);
2057 if (!info)
2058 return err;
2059
2060 err = neo_map_mmio(info, dev);
2061 if (err)
2062 goto err_map_mmio;
2063
2064 err = neo_scan_monitor(info);
2065 if (err)
2066 goto err_scan_monitor;
2067
2068 video_len = neo_init_hw(info);
2069 if (video_len < 0) {
2070 err = video_len;
2071 goto err_init_hw;
2072 }
2073
2074 err = neo_map_video(info, dev, video_len);
2075 if (err)
2076 goto err_init_hw;
2077
2078 if (!fb_find_mode(&info->var, info, mode_option, NULL, 0,
2079 info->monspecs.modedb, 16)) {
2080 printk(KERN_ERR "neofb: Unable to find usable video mode.\n");
2081 goto err_map_video;
2082 }
2083
2084 /*
2085 * Calculate the hsync and vsync frequencies. Note that
2086 * we split the 1e12 constant up so that we can preserve
2087 * the precision and fit the results into 32-bit registers.
2088 * (1953125000 * 512 = 1e12)
2089 */
2090 h_sync = 1953125000 / info->var.pixclock;
2091 h_sync =
2092 h_sync * 512 / (info->var.xres + info->var.left_margin +
2093 info->var.right_margin + info->var.hsync_len);
2094 v_sync =
2095 h_sync / (info->var.yres + info->var.upper_margin +
2096 info->var.lower_margin + info->var.vsync_len);
2097
2098 printk(KERN_INFO "neofb v" NEOFB_VERSION
2099 ": %dkB VRAM, using %dx%d, %d.%03dkHz, %dHz\n",
2100 info->fix.smem_len >> 10, info->var.xres,
2101 info->var.yres, h_sync / 1000, h_sync % 1000, v_sync);
2102
2103 if (fb_alloc_cmap(&info->cmap, 256, 0) < 0)
2104 goto err_map_video;
2105
2106 err = register_framebuffer(info);
2107 if (err < 0)
2108 goto err_reg_fb;
2109
2110 printk(KERN_INFO "fb%d: %s frame buffer device\n",
2111 info->node, info->fix.id);
2112
2113 /*
2114 * Our driver data
2115 */
2116 pci_set_drvdata(dev, info);
2117 return 0;
2118
2119 err_reg_fb:
2120 fb_dealloc_cmap(&info->cmap);
2121 err_map_video:
2122 neo_unmap_video(info);
2123 err_init_hw:
2124 fb_destroy_modedb(info->monspecs.modedb);
2125 err_scan_monitor:
2126 neo_unmap_mmio(info);
2127 err_map_mmio:
2128 neo_free_fb_info(info);
2129 return err;
2130 }
2131
2132 static void __devexit neofb_remove(struct pci_dev *dev)
2133 {
2134 struct fb_info *info = pci_get_drvdata(dev);
2135
2136 DBG("neofb_remove");
2137
2138 if (info) {
2139 /*
2140 * If unregister_framebuffer fails, then
2141 * we will be leaving hooks that could cause
2142 * oopsen laying around.
2143 */
2144 if (unregister_framebuffer(info))
2145 printk(KERN_WARNING
2146 "neofb: danger danger! Oopsen imminent!\n");
2147
2148 neo_unmap_video(info);
2149 fb_destroy_modedb(info->monspecs.modedb);
2150 neo_unmap_mmio(info);
2151 neo_free_fb_info(info);
2152
2153 /*
2154 * Ensure that the driver data is no longer
2155 * valid.
2156 */
2157 pci_set_drvdata(dev, NULL);
2158 }
2159 }
2160
2161 static struct pci_device_id neofb_devices[] = {
2162 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2070,
2163 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2070},
2164
2165 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2090,
2166 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2090},
2167
2168 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2093,
2169 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2093},
2170
2171 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2097,
2172 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2097},
2173
2174 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2160,
2175 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2160},
2176
2177 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2200,
2178 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2200},
2179
2180 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2230,
2181 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2230},
2182
2183 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2360,
2184 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2360},
2185
2186 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2380,
2187 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2380},
2188
2189 {0, 0, 0, 0, 0, 0, 0}
2190 };
2191
2192 MODULE_DEVICE_TABLE(pci, neofb_devices);
2193
2194 static struct pci_driver neofb_driver = {
2195 .name = "neofb",
2196 .id_table = neofb_devices,
2197 .probe = neofb_probe,
2198 .remove = __devexit_p(neofb_remove)
2199 };
2200
2201 /* ************************* init in-kernel code ************************** */
2202
2203 #ifndef MODULE
2204 static int __init neofb_setup(char *options)
2205 {
2206 char *this_opt;
2207
2208 DBG("neofb_setup");
2209
2210 if (!options || !*options)
2211 return 0;
2212
2213 while ((this_opt = strsep(&options, ",")) != NULL) {
2214 if (!*this_opt)
2215 continue;
2216
2217 if (!strncmp(this_opt, "internal", 8))
2218 internal = 1;
2219 else if (!strncmp(this_opt, "external", 8))
2220 external = 1;
2221 else if (!strncmp(this_opt, "nostretch", 9))
2222 nostretch = 1;
2223 else if (!strncmp(this_opt, "nopciburst", 10))
2224 nopciburst = 1;
2225 else if (!strncmp(this_opt, "libretto", 8))
2226 libretto = 1;
2227 else
2228 mode_option = this_opt;
2229 }
2230 return 0;
2231 }
2232 #endif /* MODULE */
2233
2234 static int __init neofb_init(void)
2235 {
2236 #ifndef MODULE
2237 char *option = NULL;
2238
2239 if (fb_get_options("neofb", &option))
2240 return -ENODEV;
2241 neofb_setup(option);
2242 #endif
2243 return pci_register_driver(&neofb_driver);
2244 }
2245
2246 module_init(neofb_init);
2247
2248 #ifdef MODULE
2249 static void __exit neofb_exit(void)
2250 {
2251 pci_unregister_driver(&neofb_driver);
2252 }
2253
2254 module_exit(neofb_exit);
2255 #endif /* MODULE */