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Linux 4.19.133
[linux/fpc-iii.git] / drivers / video / fbdev / neofb.c
blob5d3a444083f74c713b784a474586f64c69db1642
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 <video/vga.h>
75 #include <video/neomagic.h>
76
77 #define NEOFB_VERSION "0.4.2"
78
79 /* --------------------------------------------------------------------- */
80
81 static bool internal;
82 static bool external;
83 static bool libretto;
84 static bool nostretch;
85 static bool nopciburst;
86 static char *mode_option = NULL;
87
88 #ifdef MODULE
89
90 MODULE_AUTHOR("(c) 2001-2002 Denis Oliver Kropp <dok@convergence.de>");
91 MODULE_LICENSE("GPL");
92 MODULE_DESCRIPTION("FBDev driver for NeoMagic PCI Chips");
93 module_param(internal, bool, 0);
94 MODULE_PARM_DESC(internal, "Enable output on internal LCD Display.");
95 module_param(external, bool, 0);
96 MODULE_PARM_DESC(external, "Enable output on external CRT.");
97 module_param(libretto, bool, 0);
98 MODULE_PARM_DESC(libretto, "Force Libretto 100/110 800x480 LCD.");
99 module_param(nostretch, bool, 0);
100 MODULE_PARM_DESC(nostretch,
101 "Disable stretching of modes smaller than LCD.");
102 module_param(nopciburst, bool, 0);
103 MODULE_PARM_DESC(nopciburst, "Disable PCI burst mode.");
104 module_param(mode_option, charp, 0);
105 MODULE_PARM_DESC(mode_option, "Preferred video mode ('640x480-8@60', etc)");
106
107 #endif
108
109
110 /* --------------------------------------------------------------------- */
111
112 static biosMode bios8[] = {
113 {320, 240, 0x40},
114 {300, 400, 0x42},
115 {640, 400, 0x20},
116 {640, 480, 0x21},
117 {800, 600, 0x23},
118 {1024, 768, 0x25},
119 };
120
121 static biosMode bios16[] = {
122 {320, 200, 0x2e},
123 {320, 240, 0x41},
124 {300, 400, 0x43},
125 {640, 480, 0x31},
126 {800, 600, 0x34},
127 {1024, 768, 0x37},
128 };
129
130 static biosMode bios24[] = {
131 {640, 480, 0x32},
132 {800, 600, 0x35},
133 {1024, 768, 0x38}
134 };
135
136 #ifdef NO_32BIT_SUPPORT_YET
137 /* FIXME: guessed values, wrong */
138 static biosMode bios32[] = {
139 {640, 480, 0x33},
140 {800, 600, 0x36},
141 {1024, 768, 0x39}
142 };
143 #endif
144
145 static inline void write_le32(int regindex, u32 val, const struct neofb_par *par)
146 {
147 writel(val, par->neo2200 + par->cursorOff + regindex);
148 }
149
150 static int neoFindMode(int xres, int yres, int depth)
151 {
152 int xres_s;
153 int i, size;
154 biosMode *mode;
155
156 switch (depth) {
157 case 8:
158 size = ARRAY_SIZE(bios8);
159 mode = bios8;
160 break;
161 case 16:
162 size = ARRAY_SIZE(bios16);
163 mode = bios16;
164 break;
165 case 24:
166 size = ARRAY_SIZE(bios24);
167 mode = bios24;
168 break;
169 #ifdef NO_32BIT_SUPPORT_YET
170 case 32:
171 size = ARRAY_SIZE(bios32);
172 mode = bios32;
173 break;
174 #endif
175 default:
176 return 0;
177 }
178
179 for (i = 0; i < size; i++) {
180 if (xres <= mode[i].x_res) {
181 xres_s = mode[i].x_res;
182 for (; i < size; i++) {
183 if (mode[i].x_res != xres_s)
184 return mode[i - 1].mode;
185 if (yres <= mode[i].y_res)
186 return mode[i].mode;
187 }
188 }
189 }
190 return mode[size - 1].mode;
191 }
192
193 /*
194 * neoCalcVCLK --
195 *
196 * Determine the closest clock frequency to the one requested.
197 */
198 #define MAX_N 127
199 #define MAX_D 31
200 #define MAX_F 1
201
202 static void neoCalcVCLK(const struct fb_info *info,
203 struct neofb_par *par, long freq)
204 {
205 int n, d, f;
206 int n_best = 0, d_best = 0, f_best = 0;
207 long f_best_diff = 0x7ffff;
208
209 for (f = 0; f <= MAX_F; f++)
210 for (d = 0; d <= MAX_D; d++)
211 for (n = 0; n <= MAX_N; n++) {
212 long f_out;
213 long f_diff;
214
215 f_out = ((14318 * (n + 1)) / (d + 1)) >> f;
216 f_diff = abs(f_out - freq);
217 if (f_diff <= f_best_diff) {
218 f_best_diff = f_diff;
219 n_best = n;
220 d_best = d;
221 f_best = f;
222 }
223 if (f_out > freq)
224 break;
225 }
226
227 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2200 ||
228 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2230 ||
229 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2360 ||
230 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2380) {
231 /* NOT_DONE: We are trying the full range of the 2200 clock.
232 We should be able to try n up to 2047 */
233 par->VCLK3NumeratorLow = n_best;
234 par->VCLK3NumeratorHigh = (f_best << 7);
235 } else
236 par->VCLK3NumeratorLow = n_best | (f_best << 7);
237
238 par->VCLK3Denominator = d_best;
239
240 #ifdef NEOFB_DEBUG
241 printk(KERN_DEBUG "neoVCLK: f:%ld NumLow=%d NumHi=%d Den=%d Df=%ld\n",
242 freq,
243 par->VCLK3NumeratorLow,
244 par->VCLK3NumeratorHigh,
245 par->VCLK3Denominator, f_best_diff);
246 #endif
247 }
248
249 /*
250 * vgaHWInit --
251 * Handle the initialization, etc. of a screen.
252 * Return FALSE on failure.
253 */
254
255 static int vgaHWInit(const struct fb_var_screeninfo *var,
256 struct neofb_par *par)
257 {
258 int hsync_end = var->xres + var->right_margin + var->hsync_len;
259 int htotal = (hsync_end + var->left_margin) >> 3;
260 int vsync_start = var->yres + var->lower_margin;
261 int vsync_end = vsync_start + var->vsync_len;
262 int vtotal = vsync_end + var->upper_margin;
263
264 par->MiscOutReg = 0x23;
265
266 if (!(var->sync & FB_SYNC_HOR_HIGH_ACT))
267 par->MiscOutReg |= 0x40;
268
269 if (!(var->sync & FB_SYNC_VERT_HIGH_ACT))
270 par->MiscOutReg |= 0x80;
271
272 /*
273 * Time Sequencer
274 */
275 par->Sequencer[0] = 0x00;
276 par->Sequencer[1] = 0x01;
277 par->Sequencer[2] = 0x0F;
278 par->Sequencer[3] = 0x00; /* Font select */
279 par->Sequencer[4] = 0x0E; /* Misc */
280
281 /*
282 * CRTC Controller
283 */
284 par->CRTC[0] = htotal - 5;
285 par->CRTC[1] = (var->xres >> 3) - 1;
286 par->CRTC[2] = (var->xres >> 3) - 1;
287 par->CRTC[3] = ((htotal - 1) & 0x1F) | 0x80;
288 par->CRTC[4] = ((var->xres + var->right_margin) >> 3);
289 par->CRTC[5] = (((htotal - 1) & 0x20) << 2)
290 | (((hsync_end >> 3)) & 0x1F);
291 par->CRTC[6] = (vtotal - 2) & 0xFF;
292 par->CRTC[7] = (((vtotal - 2) & 0x100) >> 8)
293 | (((var->yres - 1) & 0x100) >> 7)
294 | ((vsync_start & 0x100) >> 6)
295 | (((var->yres - 1) & 0x100) >> 5)
296 | 0x10 | (((vtotal - 2) & 0x200) >> 4)
297 | (((var->yres - 1) & 0x200) >> 3)
298 | ((vsync_start & 0x200) >> 2);
299 par->CRTC[8] = 0x00;
300 par->CRTC[9] = (((var->yres - 1) & 0x200) >> 4) | 0x40;
301
302 if (var->vmode & FB_VMODE_DOUBLE)
303 par->CRTC[9] |= 0x80;
304
305 par->CRTC[10] = 0x00;
306 par->CRTC[11] = 0x00;
307 par->CRTC[12] = 0x00;
308 par->CRTC[13] = 0x00;
309 par->CRTC[14] = 0x00;
310 par->CRTC[15] = 0x00;
311 par->CRTC[16] = vsync_start & 0xFF;
312 par->CRTC[17] = (vsync_end & 0x0F) | 0x20;
313 par->CRTC[18] = (var->yres - 1) & 0xFF;
314 par->CRTC[19] = var->xres_virtual >> 4;
315 par->CRTC[20] = 0x00;
316 par->CRTC[21] = (var->yres - 1) & 0xFF;
317 par->CRTC[22] = (vtotal - 1) & 0xFF;
318 par->CRTC[23] = 0xC3;
319 par->CRTC[24] = 0xFF;
320
321 /*
322 * are these unnecessary?
323 * vgaHWHBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN | KGA_ENABLE_ON_ZERO);
324 * vgaHWVBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN | KGA_ENABLE_ON_ZERO);
325 */
326
327 /*
328 * Graphics Display Controller
329 */
330 par->Graphics[0] = 0x00;
331 par->Graphics[1] = 0x00;
332 par->Graphics[2] = 0x00;
333 par->Graphics[3] = 0x00;
334 par->Graphics[4] = 0x00;
335 par->Graphics[5] = 0x40;
336 par->Graphics[6] = 0x05; /* only map 64k VGA memory !!!! */
337 par->Graphics[7] = 0x0F;
338 par->Graphics[8] = 0xFF;
339
340
341 par->Attribute[0] = 0x00; /* standard colormap translation */
342 par->Attribute[1] = 0x01;
343 par->Attribute[2] = 0x02;
344 par->Attribute[3] = 0x03;
345 par->Attribute[4] = 0x04;
346 par->Attribute[5] = 0x05;
347 par->Attribute[6] = 0x06;
348 par->Attribute[7] = 0x07;
349 par->Attribute[8] = 0x08;
350 par->Attribute[9] = 0x09;
351 par->Attribute[10] = 0x0A;
352 par->Attribute[11] = 0x0B;
353 par->Attribute[12] = 0x0C;
354 par->Attribute[13] = 0x0D;
355 par->Attribute[14] = 0x0E;
356 par->Attribute[15] = 0x0F;
357 par->Attribute[16] = 0x41;
358 par->Attribute[17] = 0xFF;
359 par->Attribute[18] = 0x0F;
360 par->Attribute[19] = 0x00;
361 par->Attribute[20] = 0x00;
362 return 0;
363 }
364
365 static void vgaHWLock(struct vgastate *state)
366 {
367 /* Protect CRTC[0-7] */
368 vga_wcrt(state->vgabase, 0x11, vga_rcrt(state->vgabase, 0x11) | 0x80);
369 }
370
371 static void vgaHWUnlock(void)
372 {
373 /* Unprotect CRTC[0-7] */
374 vga_wcrt(NULL, 0x11, vga_rcrt(NULL, 0x11) & ~0x80);
375 }
376
377 static void neoLock(struct vgastate *state)
378 {
379 vga_wgfx(state->vgabase, 0x09, 0x00);
380 vgaHWLock(state);
381 }
382
383 static void neoUnlock(void)
384 {
385 vgaHWUnlock();
386 vga_wgfx(NULL, 0x09, 0x26);
387 }
388
389 /*
390 * VGA Palette management
391 */
392 static int paletteEnabled = 0;
393
394 static inline void VGAenablePalette(void)
395 {
396 vga_r(NULL, VGA_IS1_RC);
397 vga_w(NULL, VGA_ATT_W, 0x00);
398 paletteEnabled = 1;
399 }
400
401 static inline void VGAdisablePalette(void)
402 {
403 vga_r(NULL, VGA_IS1_RC);
404 vga_w(NULL, VGA_ATT_W, 0x20);
405 paletteEnabled = 0;
406 }
407
408 static inline void VGAwATTR(u8 index, u8 value)
409 {
410 if (paletteEnabled)
411 index &= ~0x20;
412 else
413 index |= 0x20;
414
415 vga_r(NULL, VGA_IS1_RC);
416 vga_wattr(NULL, index, value);
417 }
418
419 static void vgaHWProtect(int on)
420 {
421 unsigned char tmp;
422
423 tmp = vga_rseq(NULL, 0x01);
424 if (on) {
425 /*
426 * Turn off screen and disable sequencer.
427 */
428 vga_wseq(NULL, 0x00, 0x01); /* Synchronous Reset */
429 vga_wseq(NULL, 0x01, tmp | 0x20); /* disable the display */
430
431 VGAenablePalette();
432 } else {
433 /*
434 * Reenable sequencer, then turn on screen.
435 */
436 vga_wseq(NULL, 0x01, tmp & ~0x20); /* reenable display */
437 vga_wseq(NULL, 0x00, 0x03); /* clear synchronousreset */
438
439 VGAdisablePalette();
440 }
441 }
442
443 static void vgaHWRestore(const struct fb_info *info,
444 const struct neofb_par *par)
445 {
446 int i;
447
448 vga_w(NULL, VGA_MIS_W, par->MiscOutReg);
449
450 for (i = 1; i < 5; i++)
451 vga_wseq(NULL, i, par->Sequencer[i]);
452
453 /* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 or CRTC[17] */
454 vga_wcrt(NULL, 17, par->CRTC[17] & ~0x80);
455
456 for (i = 0; i < 25; i++)
457 vga_wcrt(NULL, i, par->CRTC[i]);
458
459 for (i = 0; i < 9; i++)
460 vga_wgfx(NULL, i, par->Graphics[i]);
461
462 VGAenablePalette();
463
464 for (i = 0; i < 21; i++)
465 VGAwATTR(i, par->Attribute[i]);
466
467 VGAdisablePalette();
468 }
469
470
471 /* -------------------- Hardware specific routines ------------------------- */
472
473 /*
474 * Hardware Acceleration for Neo2200+
475 */
476 static inline int neo2200_sync(struct fb_info *info)
477 {
478 struct neofb_par *par = info->par;
479
480 while (readl(&par->neo2200->bltStat) & 1)
481 cpu_relax();
482 return 0;
483 }
484
485 static inline void neo2200_wait_fifo(struct fb_info *info,
486 int requested_fifo_space)
487 {
488 // ndev->neo.waitfifo_calls++;
489 // ndev->neo.waitfifo_sum += requested_fifo_space;
490
491 /* FIXME: does not work
492 if (neo_fifo_space < requested_fifo_space)
493 {
494 neo_fifo_waitcycles++;
495
496 while (1)
497 {
498 neo_fifo_space = (neo2200->bltStat >> 8);
499 if (neo_fifo_space >= requested_fifo_space)
500 break;
501 }
502 }
503 else
504 {
505 neo_fifo_cache_hits++;
506 }
507
508 neo_fifo_space -= requested_fifo_space;
509 */
510
511 neo2200_sync(info);
512 }
513
514 static inline void neo2200_accel_init(struct fb_info *info,
515 struct fb_var_screeninfo *var)
516 {
517 struct neofb_par *par = info->par;
518 Neo2200 __iomem *neo2200 = par->neo2200;
519 u32 bltMod, pitch;
520
521 neo2200_sync(info);
522
523 switch (var->bits_per_pixel) {
524 case 8:
525 bltMod = NEO_MODE1_DEPTH8;
526 pitch = var->xres_virtual;
527 break;
528 case 15:
529 case 16:
530 bltMod = NEO_MODE1_DEPTH16;
531 pitch = var->xres_virtual * 2;
532 break;
533 case 24:
534 bltMod = NEO_MODE1_DEPTH24;
535 pitch = var->xres_virtual * 3;
536 break;
537 default:
538 printk(KERN_ERR
539 "neofb: neo2200_accel_init: unexpected bits per pixel!\n");
540 return;
541 }
542
543 writel(bltMod << 16, &neo2200->bltStat);
544 writel((pitch << 16) | pitch, &neo2200->pitch);
545 }
546
547 /* --------------------------------------------------------------------- */
548
549 static int
550 neofb_open(struct fb_info *info, int user)
551 {
552 struct neofb_par *par = info->par;
553
554 if (!par->ref_count) {
555 memset(&par->state, 0, sizeof(struct vgastate));
556 par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS;
557 save_vga(&par->state);
558 }
559 par->ref_count++;
560
561 return 0;
562 }
563
564 static int
565 neofb_release(struct fb_info *info, int user)
566 {
567 struct neofb_par *par = info->par;
568
569 if (!par->ref_count)
570 return -EINVAL;
571
572 if (par->ref_count == 1) {
573 restore_vga(&par->state);
574 }
575 par->ref_count--;
576
577 return 0;
578 }
579
580 static int
581 neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
582 {
583 struct neofb_par *par = info->par;
584 int memlen, vramlen;
585 int mode_ok = 0;
586
587 DBG("neofb_check_var");
588
589 if (PICOS2KHZ(var->pixclock) > par->maxClock)
590 return -EINVAL;
591
592 /* Is the mode larger than the LCD panel? */
593 if (par->internal_display &&
594 ((var->xres > par->NeoPanelWidth) ||
595 (var->yres > par->NeoPanelHeight))) {
596 printk(KERN_INFO
597 "Mode (%dx%d) larger than the LCD panel (%dx%d)\n",
598 var->xres, var->yres, par->NeoPanelWidth,
599 par->NeoPanelHeight);
600 return -EINVAL;
601 }
602
603 /* Is the mode one of the acceptable sizes? */
604 if (!par->internal_display)
605 mode_ok = 1;
606 else {
607 switch (var->xres) {
608 case 1280:
609 if (var->yres == 1024)
610 mode_ok = 1;
611 break;
612 case 1024:
613 if (var->yres == 768)
614 mode_ok = 1;
615 break;
616 case 800:
617 if (var->yres == (par->libretto ? 480 : 600))
618 mode_ok = 1;
619 break;
620 case 640:
621 if (var->yres == 480)
622 mode_ok = 1;
623 break;
624 }
625 }
626
627 if (!mode_ok) {
628 printk(KERN_INFO
629 "Mode (%dx%d) won't display properly on LCD\n",
630 var->xres, var->yres);
631 return -EINVAL;
632 }
633
634 var->red.msb_right = 0;
635 var->green.msb_right = 0;
636 var->blue.msb_right = 0;
637 var->transp.msb_right = 0;
638
639 var->transp.offset = 0;
640 var->transp.length = 0;
641 switch (var->bits_per_pixel) {
642 case 8: /* PSEUDOCOLOUR, 256 */
643 var->red.offset = 0;
644 var->red.length = 8;
645 var->green.offset = 0;
646 var->green.length = 8;
647 var->blue.offset = 0;
648 var->blue.length = 8;
649 break;
650
651 case 16: /* DIRECTCOLOUR, 64k */
652 var->red.offset = 11;
653 var->red.length = 5;
654 var->green.offset = 5;
655 var->green.length = 6;
656 var->blue.offset = 0;
657 var->blue.length = 5;
658 break;
659
660 case 24: /* TRUECOLOUR, 16m */
661 var->red.offset = 16;
662 var->red.length = 8;
663 var->green.offset = 8;
664 var->green.length = 8;
665 var->blue.offset = 0;
666 var->blue.length = 8;
667 break;
668
669 #ifdef NO_32BIT_SUPPORT_YET
670 case 32: /* TRUECOLOUR, 16m */
671 var->transp.offset = 24;
672 var->transp.length = 8;
673 var->red.offset = 16;
674 var->red.length = 8;
675 var->green.offset = 8;
676 var->green.length = 8;
677 var->blue.offset = 0;
678 var->blue.length = 8;
679 break;
680 #endif
681 default:
682 printk(KERN_WARNING "neofb: no support for %dbpp\n",
683 var->bits_per_pixel);
684 return -EINVAL;
685 }
686
687 vramlen = info->fix.smem_len;
688 if (vramlen > 4 * 1024 * 1024)
689 vramlen = 4 * 1024 * 1024;
690
691 if (var->xres_virtual < var->xres)
692 var->xres_virtual = var->xres;
693
694 memlen = var->xres_virtual * var->bits_per_pixel * var->yres_virtual >> 3;
695
696 if (memlen > vramlen) {
697 var->yres_virtual = vramlen * 8 / (var->xres_virtual *
698 var->bits_per_pixel);
699 memlen = var->xres_virtual * var->bits_per_pixel *
700 var->yres_virtual / 8;
701 }
702
703 /* we must round yres/xres down, we already rounded y/xres_virtual up
704 if it was possible. We should return -EINVAL, but I disagree */
705 if (var->yres_virtual < var->yres)
706 var->yres = var->yres_virtual;
707 if (var->xoffset + var->xres > var->xres_virtual)
708 var->xoffset = var->xres_virtual - var->xres;
709 if (var->yoffset + var->yres > var->yres_virtual)
710 var->yoffset = var->yres_virtual - var->yres;
711
712 var->nonstd = 0;
713 var->height = -1;
714 var->width = -1;
715
716 if (var->bits_per_pixel >= 24 || !par->neo2200)
717 var->accel_flags &= ~FB_ACCELF_TEXT;
718 return 0;
719 }
720
721 static int neofb_set_par(struct fb_info *info)
722 {
723 struct neofb_par *par = info->par;
724 unsigned char temp;
725 int i, clock_hi = 0;
726 int lcd_stretch;
727 int hoffset, voffset;
728 int vsync_start, vtotal;
729
730 DBG("neofb_set_par");
731
732 neoUnlock();
733
734 vgaHWProtect(1); /* Blank the screen */
735
736 vsync_start = info->var.yres + info->var.lower_margin;
737 vtotal = vsync_start + info->var.vsync_len + info->var.upper_margin;
738
739 /*
740 * This will allocate the datastructure and initialize all of the
741 * generic VGA registers.
742 */
743
744 if (vgaHWInit(&info->var, par))
745 return -EINVAL;
746
747 /*
748 * The default value assigned by vgaHW.c is 0x41, but this does
749 * not work for NeoMagic.
750 */
751 par->Attribute[16] = 0x01;
752
753 switch (info->var.bits_per_pixel) {
754 case 8:
755 par->CRTC[0x13] = info->var.xres_virtual >> 3;
756 par->ExtCRTOffset = info->var.xres_virtual >> 11;
757 par->ExtColorModeSelect = 0x11;
758 break;
759 case 16:
760 par->CRTC[0x13] = info->var.xres_virtual >> 2;
761 par->ExtCRTOffset = info->var.xres_virtual >> 10;
762 par->ExtColorModeSelect = 0x13;
763 break;
764 case 24:
765 par->CRTC[0x13] = (info->var.xres_virtual * 3) >> 3;
766 par->ExtCRTOffset = (info->var.xres_virtual * 3) >> 11;
767 par->ExtColorModeSelect = 0x14;
768 break;
769 #ifdef NO_32BIT_SUPPORT_YET
770 case 32: /* FIXME: guessed values */
771 par->CRTC[0x13] = info->var.xres_virtual >> 1;
772 par->ExtCRTOffset = info->var.xres_virtual >> 9;
773 par->ExtColorModeSelect = 0x15;
774 break;
775 #endif
776 default:
777 break;
778 }
779
780 par->ExtCRTDispAddr = 0x10;
781
782 /* Vertical Extension */
783 par->VerticalExt = (((vtotal - 2) & 0x400) >> 10)
784 | (((info->var.yres - 1) & 0x400) >> 9)
785 | (((vsync_start) & 0x400) >> 8)
786 | (((vsync_start) & 0x400) >> 7);
787
788 /* Fast write bursts on unless disabled. */
789 if (par->pci_burst)
790 par->SysIfaceCntl1 = 0x30;
791 else
792 par->SysIfaceCntl1 = 0x00;
793
794 par->SysIfaceCntl2 = 0xc0; /* VESA Bios sets this to 0x80! */
795
796 /* Initialize: by default, we want display config register to be read */
797 par->PanelDispCntlRegRead = 1;
798
799 /* Enable any user specified display devices. */
800 par->PanelDispCntlReg1 = 0x00;
801 if (par->internal_display)
802 par->PanelDispCntlReg1 |= 0x02;
803 if (par->external_display)
804 par->PanelDispCntlReg1 |= 0x01;
805
806 /* If the user did not specify any display devices, then... */
807 if (par->PanelDispCntlReg1 == 0x00) {
808 /* Default to internal (i.e., LCD) only. */
809 par->PanelDispCntlReg1 = vga_rgfx(NULL, 0x20) & 0x03;
810 }
811
812 /* If we are using a fixed mode, then tell the chip we are. */
813 switch (info->var.xres) {
814 case 1280:
815 par->PanelDispCntlReg1 |= 0x60;
816 break;
817 case 1024:
818 par->PanelDispCntlReg1 |= 0x40;
819 break;
820 case 800:
821 par->PanelDispCntlReg1 |= 0x20;
822 break;
823 case 640:
824 default:
825 break;
826 }
827
828 /* Setup shadow register locking. */
829 switch (par->PanelDispCntlReg1 & 0x03) {
830 case 0x01: /* External CRT only mode: */
831 par->GeneralLockReg = 0x00;
832 /* We need to program the VCLK for external display only mode. */
833 par->ProgramVCLK = 1;
834 break;
835 case 0x02: /* Internal LCD only mode: */
836 case 0x03: /* Simultaneous internal/external (LCD/CRT) mode: */
837 par->GeneralLockReg = 0x01;
838 /* Don't program the VCLK when using the LCD. */
839 par->ProgramVCLK = 0;
840 break;
841 }
842
843 /*
844 * If the screen is to be stretched, turn on stretching for the
845 * various modes.
846 *
847 * OPTION_LCD_STRETCH means stretching should be turned off!
848 */
849 par->PanelDispCntlReg2 = 0x00;
850 par->PanelDispCntlReg3 = 0x00;
851
852 if (par->lcd_stretch && (par->PanelDispCntlReg1 == 0x02) && /* LCD only */
853 (info->var.xres != par->NeoPanelWidth)) {
854 switch (info->var.xres) {
855 case 320: /* Needs testing. KEM -- 24 May 98 */
856 case 400: /* Needs testing. KEM -- 24 May 98 */
857 case 640:
858 case 800:
859 case 1024:
860 lcd_stretch = 1;
861 par->PanelDispCntlReg2 |= 0xC6;
862 break;
863 default:
864 lcd_stretch = 0;
865 /* No stretching in these modes. */
866 }
867 } else
868 lcd_stretch = 0;
869
870 /*
871 * If the screen is to be centerd, turn on the centering for the
872 * various modes.
873 */
874 par->PanelVertCenterReg1 = 0x00;
875 par->PanelVertCenterReg2 = 0x00;
876 par->PanelVertCenterReg3 = 0x00;
877 par->PanelVertCenterReg4 = 0x00;
878 par->PanelVertCenterReg5 = 0x00;
879 par->PanelHorizCenterReg1 = 0x00;
880 par->PanelHorizCenterReg2 = 0x00;
881 par->PanelHorizCenterReg3 = 0x00;
882 par->PanelHorizCenterReg4 = 0x00;
883 par->PanelHorizCenterReg5 = 0x00;
884
885
886 if (par->PanelDispCntlReg1 & 0x02) {
887 if (info->var.xres == par->NeoPanelWidth) {
888 /*
889 * No centering required when the requested display width
890 * equals the panel width.
891 */
892 } else {
893 par->PanelDispCntlReg2 |= 0x01;
894 par->PanelDispCntlReg3 |= 0x10;
895
896 /* Calculate the horizontal and vertical offsets. */
897 if (!lcd_stretch) {
898 hoffset =
899 ((par->NeoPanelWidth -
900 info->var.xres) >> 4) - 1;
901 voffset =
902 ((par->NeoPanelHeight -
903 info->var.yres) >> 1) - 2;
904 } else {
905 /* Stretched modes cannot be centered. */
906 hoffset = 0;
907 voffset = 0;
908 }
909
910 switch (info->var.xres) {
911 case 320: /* Needs testing. KEM -- 24 May 98 */
912 par->PanelHorizCenterReg3 = hoffset;
913 par->PanelVertCenterReg2 = voffset;
914 break;
915 case 400: /* Needs testing. KEM -- 24 May 98 */
916 par->PanelHorizCenterReg4 = hoffset;
917 par->PanelVertCenterReg1 = voffset;
918 break;
919 case 640:
920 par->PanelHorizCenterReg1 = hoffset;
921 par->PanelVertCenterReg3 = voffset;
922 break;
923 case 800:
924 par->PanelHorizCenterReg2 = hoffset;
925 par->PanelVertCenterReg4 = voffset;
926 break;
927 case 1024:
928 par->PanelHorizCenterReg5 = hoffset;
929 par->PanelVertCenterReg5 = voffset;
930 break;
931 case 1280:
932 default:
933 /* No centering in these modes. */
934 break;
935 }
936 }
937 }
938
939 par->biosMode =
940 neoFindMode(info->var.xres, info->var.yres,
941 info->var.bits_per_pixel);
942
943 /*
944 * Calculate the VCLK that most closely matches the requested dot
945 * clock.
946 */
947 neoCalcVCLK(info, par, PICOS2KHZ(info->var.pixclock));
948
949 /* Since we program the clocks ourselves, always use VCLK3. */
950 par->MiscOutReg |= 0x0C;
951
952 /* alread unlocked above */
953 /* BOGUS vga_wgfx(NULL, 0x09, 0x26); */
954
955 /* don't know what this is, but it's 0 from bootup anyway */
956 vga_wgfx(NULL, 0x15, 0x00);
957
958 /* was set to 0x01 by my bios in text and vesa modes */
959 vga_wgfx(NULL, 0x0A, par->GeneralLockReg);
960
961 /*
962 * The color mode needs to be set before calling vgaHWRestore
963 * to ensure the DAC is initialized properly.
964 *
965 * NOTE: Make sure we don't change bits make sure we don't change
966 * any reserved bits.
967 */
968 temp = vga_rgfx(NULL, 0x90);
969 switch (info->fix.accel) {
970 case FB_ACCEL_NEOMAGIC_NM2070:
971 temp &= 0xF0; /* Save bits 7:4 */
972 temp |= (par->ExtColorModeSelect & ~0xF0);
973 break;
974 case FB_ACCEL_NEOMAGIC_NM2090:
975 case FB_ACCEL_NEOMAGIC_NM2093:
976 case FB_ACCEL_NEOMAGIC_NM2097:
977 case FB_ACCEL_NEOMAGIC_NM2160:
978 case FB_ACCEL_NEOMAGIC_NM2200:
979 case FB_ACCEL_NEOMAGIC_NM2230:
980 case FB_ACCEL_NEOMAGIC_NM2360:
981 case FB_ACCEL_NEOMAGIC_NM2380:
982 temp &= 0x70; /* Save bits 6:4 */
983 temp |= (par->ExtColorModeSelect & ~0x70);
984 break;
985 }
986
987 vga_wgfx(NULL, 0x90, temp);
988
989 /*
990 * In some rare cases a lockup might occur if we don't delay
991 * here. (Reported by Miles Lane)
992 */
993 //mdelay(200);
994
995 /*
996 * Disable horizontal and vertical graphics and text expansions so
997 * that vgaHWRestore works properly.
998 */
999 temp = vga_rgfx(NULL, 0x25);
1000 temp &= 0x39;
1001 vga_wgfx(NULL, 0x25, temp);
1002
1003 /*
1004 * Sleep for 200ms to make sure that the two operations above have
1005 * had time to take effect.
1006 */
1007 mdelay(200);
1008
1009 /*
1010 * This function handles restoring the generic VGA registers. */
1011 vgaHWRestore(info, par);
1012
1013 /* linear colormap for non palettized modes */
1014 switch (info->var.bits_per_pixel) {
1015 case 8:
1016 /* PseudoColor, 256 */
1017 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
1018 break;
1019 case 16:
1020 /* TrueColor, 64k */
1021 info->fix.visual = FB_VISUAL_TRUECOLOR;
1022
1023 for (i = 0; i < 64; i++) {
1024 outb(i, 0x3c8);
1025
1026 outb(i << 1, 0x3c9);
1027 outb(i, 0x3c9);
1028 outb(i << 1, 0x3c9);
1029 }
1030 break;
1031 case 24:
1032 #ifdef NO_32BIT_SUPPORT_YET
1033 case 32:
1034 #endif
1035 /* TrueColor, 16m */
1036 info->fix.visual = FB_VISUAL_TRUECOLOR;
1037
1038 for (i = 0; i < 256; i++) {
1039 outb(i, 0x3c8);
1040
1041 outb(i, 0x3c9);
1042 outb(i, 0x3c9);
1043 outb(i, 0x3c9);
1044 }
1045 break;
1046 }
1047
1048 vga_wgfx(NULL, 0x0E, par->ExtCRTDispAddr);
1049 vga_wgfx(NULL, 0x0F, par->ExtCRTOffset);
1050 temp = vga_rgfx(NULL, 0x10);
1051 temp &= 0x0F; /* Save bits 3:0 */
1052 temp |= (par->SysIfaceCntl1 & ~0x0F); /* VESA Bios sets bit 1! */
1053 vga_wgfx(NULL, 0x10, temp);
1054
1055 vga_wgfx(NULL, 0x11, par->SysIfaceCntl2);
1056 vga_wgfx(NULL, 0x15, 0 /*par->SingleAddrPage */ );
1057 vga_wgfx(NULL, 0x16, 0 /*par->DualAddrPage */ );
1058
1059 temp = vga_rgfx(NULL, 0x20);
1060 switch (info->fix.accel) {
1061 case FB_ACCEL_NEOMAGIC_NM2070:
1062 temp &= 0xFC; /* Save bits 7:2 */
1063 temp |= (par->PanelDispCntlReg1 & ~0xFC);
1064 break;
1065 case FB_ACCEL_NEOMAGIC_NM2090:
1066 case FB_ACCEL_NEOMAGIC_NM2093:
1067 case FB_ACCEL_NEOMAGIC_NM2097:
1068 case FB_ACCEL_NEOMAGIC_NM2160:
1069 temp &= 0xDC; /* Save bits 7:6,4:2 */
1070 temp |= (par->PanelDispCntlReg1 & ~0xDC);
1071 break;
1072 case FB_ACCEL_NEOMAGIC_NM2200:
1073 case FB_ACCEL_NEOMAGIC_NM2230:
1074 case FB_ACCEL_NEOMAGIC_NM2360:
1075 case FB_ACCEL_NEOMAGIC_NM2380:
1076 temp &= 0x98; /* Save bits 7,4:3 */
1077 temp |= (par->PanelDispCntlReg1 & ~0x98);
1078 break;
1079 }
1080 vga_wgfx(NULL, 0x20, temp);
1081
1082 temp = vga_rgfx(NULL, 0x25);
1083 temp &= 0x38; /* Save bits 5:3 */
1084 temp |= (par->PanelDispCntlReg2 & ~0x38);
1085 vga_wgfx(NULL, 0x25, temp);
1086
1087 if (info->fix.accel != FB_ACCEL_NEOMAGIC_NM2070) {
1088 temp = vga_rgfx(NULL, 0x30);
1089 temp &= 0xEF; /* Save bits 7:5 and bits 3:0 */
1090 temp |= (par->PanelDispCntlReg3 & ~0xEF);
1091 vga_wgfx(NULL, 0x30, temp);
1092 }
1093
1094 vga_wgfx(NULL, 0x28, par->PanelVertCenterReg1);
1095 vga_wgfx(NULL, 0x29, par->PanelVertCenterReg2);
1096 vga_wgfx(NULL, 0x2a, par->PanelVertCenterReg3);
1097
1098 if (info->fix.accel != FB_ACCEL_NEOMAGIC_NM2070) {
1099 vga_wgfx(NULL, 0x32, par->PanelVertCenterReg4);
1100 vga_wgfx(NULL, 0x33, par->PanelHorizCenterReg1);
1101 vga_wgfx(NULL, 0x34, par->PanelHorizCenterReg2);
1102 vga_wgfx(NULL, 0x35, par->PanelHorizCenterReg3);
1103 }
1104
1105 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2160)
1106 vga_wgfx(NULL, 0x36, par->PanelHorizCenterReg4);
1107
1108 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2200 ||
1109 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2230 ||
1110 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2360 ||
1111 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2380) {
1112 vga_wgfx(NULL, 0x36, par->PanelHorizCenterReg4);
1113 vga_wgfx(NULL, 0x37, par->PanelVertCenterReg5);
1114 vga_wgfx(NULL, 0x38, par->PanelHorizCenterReg5);
1115
1116 clock_hi = 1;
1117 }
1118
1119 /* Program VCLK3 if needed. */
1120 if (par->ProgramVCLK && ((vga_rgfx(NULL, 0x9B) != par->VCLK3NumeratorLow)
1121 || (vga_rgfx(NULL, 0x9F) != par->VCLK3Denominator)
1122 || (clock_hi && ((vga_rgfx(NULL, 0x8F) & ~0x0f)
1123 != (par->VCLK3NumeratorHigh &
1124 ~0x0F))))) {
1125 vga_wgfx(NULL, 0x9B, par->VCLK3NumeratorLow);
1126 if (clock_hi) {
1127 temp = vga_rgfx(NULL, 0x8F);
1128 temp &= 0x0F; /* Save bits 3:0 */
1129 temp |= (par->VCLK3NumeratorHigh & ~0x0F);
1130 vga_wgfx(NULL, 0x8F, temp);
1131 }
1132 vga_wgfx(NULL, 0x9F, par->VCLK3Denominator);
1133 }
1134
1135 if (par->biosMode)
1136 vga_wcrt(NULL, 0x23, par->biosMode);
1137
1138 vga_wgfx(NULL, 0x93, 0xc0); /* Gives 5x faster framebuffer writes !!! */
1139
1140 /* Program vertical extension register */
1141 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2200 ||
1142 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2230 ||
1143 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2360 ||
1144 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2380) {
1145 vga_wcrt(NULL, 0x70, par->VerticalExt);
1146 }
1147
1148 vgaHWProtect(0); /* Turn on screen */
1149
1150 /* Calling this also locks offset registers required in update_start */
1151 neoLock(&par->state);
1152
1153 info->fix.line_length =
1154 info->var.xres_virtual * (info->var.bits_per_pixel >> 3);
1155
1156 switch (info->fix.accel) {
1157 case FB_ACCEL_NEOMAGIC_NM2200:
1158 case FB_ACCEL_NEOMAGIC_NM2230:
1159 case FB_ACCEL_NEOMAGIC_NM2360:
1160 case FB_ACCEL_NEOMAGIC_NM2380:
1161 neo2200_accel_init(info, &info->var);
1162 break;
1163 default:
1164 break;
1165 }
1166 return 0;
1167 }
1168
1169 /*
1170 * Pan or Wrap the Display
1171 */
1172 static int neofb_pan_display(struct fb_var_screeninfo *var,
1173 struct fb_info *info)
1174 {
1175 struct neofb_par *par = info->par;
1176 struct vgastate *state = &par->state;
1177 int oldExtCRTDispAddr;
1178 int Base;
1179
1180 DBG("neofb_update_start");
1181
1182 Base = (var->yoffset * info->var.xres_virtual + var->xoffset) >> 2;
1183 Base *= (info->var.bits_per_pixel + 7) / 8;
1184
1185 neoUnlock();
1186
1187 /*
1188 * These are the generic starting address registers.
1189 */
1190 vga_wcrt(state->vgabase, 0x0C, (Base & 0x00FF00) >> 8);
1191 vga_wcrt(state->vgabase, 0x0D, (Base & 0x00FF));
1192
1193 /*
1194 * Make sure we don't clobber some other bits that might already
1195 * have been set. NOTE: NM2200 has a writable bit 3, but it shouldn't
1196 * be needed.
1197 */
1198 oldExtCRTDispAddr = vga_rgfx(NULL, 0x0E);
1199 vga_wgfx(state->vgabase, 0x0E, (((Base >> 16) & 0x0f) | (oldExtCRTDispAddr & 0xf0)));
1200
1201 neoLock(state);
1202
1203 return 0;
1204 }
1205
1206 static int neofb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
1207 u_int transp, struct fb_info *fb)
1208 {
1209 if (regno >= fb->cmap.len || regno > 255)
1210 return -EINVAL;
1211
1212 if (fb->var.bits_per_pixel <= 8) {
1213 outb(regno, 0x3c8);
1214
1215 outb(red >> 10, 0x3c9);
1216 outb(green >> 10, 0x3c9);
1217 outb(blue >> 10, 0x3c9);
1218 } else if (regno < 16) {
1219 switch (fb->var.bits_per_pixel) {
1220 case 16:
1221 ((u32 *) fb->pseudo_palette)[regno] =
1222 ((red & 0xf800)) | ((green & 0xfc00) >> 5) |
1223 ((blue & 0xf800) >> 11);
1224 break;
1225 case 24:
1226 ((u32 *) fb->pseudo_palette)[regno] =
1227 ((red & 0xff00) << 8) | ((green & 0xff00)) |
1228 ((blue & 0xff00) >> 8);
1229 break;
1230 #ifdef NO_32BIT_SUPPORT_YET
1231 case 32:
1232 ((u32 *) fb->pseudo_palette)[regno] =
1233 ((transp & 0xff00) << 16) | ((red & 0xff00) << 8) |
1234 ((green & 0xff00)) | ((blue & 0xff00) >> 8);
1235 break;
1236 #endif
1237 default:
1238 return 1;
1239 }
1240 }
1241
1242 return 0;
1243 }
1244
1245 /*
1246 * (Un)Blank the display.
1247 */
1248 static int neofb_blank(int blank_mode, struct fb_info *info)
1249 {
1250 /*
1251 * Blank the screen if blank_mode != 0, else unblank.
1252 * Return 0 if blanking succeeded, != 0 if un-/blanking failed due to
1253 * e.g. a video mode which doesn't support it. Implements VESA suspend
1254 * and powerdown modes for monitors, and backlight control on LCDs.
1255 * blank_mode == 0: unblanked (backlight on)
1256 * blank_mode == 1: blank (backlight on)
1257 * blank_mode == 2: suspend vsync (backlight off)
1258 * blank_mode == 3: suspend hsync (backlight off)
1259 * blank_mode == 4: powerdown (backlight off)
1260 *
1261 * wms...Enable VESA DPMS compatible powerdown mode
1262 * run "setterm -powersave powerdown" to take advantage
1263 */
1264 struct neofb_par *par = info->par;
1265 int seqflags, lcdflags, dpmsflags, reg, tmpdisp;
1266
1267 /*
1268 * Read back the register bits related to display configuration. They might
1269 * have been changed underneath the driver via Fn key stroke.
1270 */
1271 neoUnlock();
1272 tmpdisp = vga_rgfx(NULL, 0x20) & 0x03;
1273 neoLock(&par->state);
1274
1275 /* In case we blank the screen, we want to store the possibly new
1276 * configuration in the driver. During un-blank, we re-apply this setting,
1277 * since the LCD bit will be cleared in order to switch off the backlight.
1278 */
1279 if (par->PanelDispCntlRegRead) {
1280 par->PanelDispCntlReg1 = tmpdisp;
1281 }
1282 par->PanelDispCntlRegRead = !blank_mode;
1283
1284 switch (blank_mode) {
1285 case FB_BLANK_POWERDOWN: /* powerdown - both sync lines down */
1286 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
1287 lcdflags = 0; /* LCD off */
1288 dpmsflags = NEO_GR01_SUPPRESS_HSYNC |
1289 NEO_GR01_SUPPRESS_VSYNC;
1290 #ifdef CONFIG_TOSHIBA
1291 /* Do we still need this ? */
1292 /* attempt to turn off backlight on toshiba; also turns off external */
1293 {
1294 SMMRegisters regs;
1295
1296 regs.eax = 0xff00; /* HCI_SET */
1297 regs.ebx = 0x0002; /* HCI_BACKLIGHT */
1298 regs.ecx = 0x0000; /* HCI_DISABLE */
1299 tosh_smm(&regs);
1300 }
1301 #endif
1302 break;
1303 case FB_BLANK_HSYNC_SUSPEND: /* hsync off */
1304 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
1305 lcdflags = 0; /* LCD off */
1306 dpmsflags = NEO_GR01_SUPPRESS_HSYNC;
1307 break;
1308 case FB_BLANK_VSYNC_SUSPEND: /* vsync off */
1309 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
1310 lcdflags = 0; /* LCD off */
1311 dpmsflags = NEO_GR01_SUPPRESS_VSYNC;
1312 break;
1313 case FB_BLANK_NORMAL: /* just blank screen (backlight stays on) */
1314 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
1315 /*
1316 * During a blank operation with the LID shut, we might store "LCD off"
1317 * by mistake. Due to timing issues, the BIOS may switch the lights
1318 * back on, and we turn it back off once we "unblank".
1319 *
1320 * So here is an attempt to implement ">=" - if we are in the process
1321 * of unblanking, and the LCD bit is unset in the driver but set in the
1322 * register, we must keep it.
1323 */
1324 lcdflags = ((par->PanelDispCntlReg1 | tmpdisp) & 0x02); /* LCD normal */
1325 dpmsflags = 0x00; /* no hsync/vsync suppression */
1326 break;
1327 case FB_BLANK_UNBLANK: /* unblank */
1328 seqflags = 0; /* Enable sequencer */
1329 lcdflags = ((par->PanelDispCntlReg1 | tmpdisp) & 0x02); /* LCD normal */
1330 dpmsflags = 0x00; /* no hsync/vsync suppression */
1331 #ifdef CONFIG_TOSHIBA
1332 /* Do we still need this ? */
1333 /* attempt to re-enable backlight/external on toshiba */
1334 {
1335 SMMRegisters regs;
1336
1337 regs.eax = 0xff00; /* HCI_SET */
1338 regs.ebx = 0x0002; /* HCI_BACKLIGHT */
1339 regs.ecx = 0x0001; /* HCI_ENABLE */
1340 tosh_smm(&regs);
1341 }
1342 #endif
1343 break;
1344 default: /* Anything else we don't understand; return 1 to tell
1345 * fb_blank we didn't aactually do anything */
1346 return 1;
1347 }
1348
1349 neoUnlock();
1350 reg = (vga_rseq(NULL, 0x01) & ~0x20) | seqflags;
1351 vga_wseq(NULL, 0x01, reg);
1352 reg = (vga_rgfx(NULL, 0x20) & ~0x02) | lcdflags;
1353 vga_wgfx(NULL, 0x20, reg);
1354 reg = (vga_rgfx(NULL, 0x01) & ~0xF0) | 0x80 | dpmsflags;
1355 vga_wgfx(NULL, 0x01, reg);
1356 neoLock(&par->state);
1357 return 0;
1358 }
1359
1360 static void
1361 neo2200_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
1362 {
1363 struct neofb_par *par = info->par;
1364 u_long dst, rop;
1365
1366 dst = rect->dx + rect->dy * info->var.xres_virtual;
1367 rop = rect->rop ? 0x060000 : 0x0c0000;
1368
1369 neo2200_wait_fifo(info, 4);
1370
1371 /* set blt control */
1372 writel(NEO_BC3_FIFO_EN |
1373 NEO_BC0_SRC_IS_FG | NEO_BC3_SKIP_MAPPING |
1374 // NEO_BC3_DST_XY_ADDR |
1375 // NEO_BC3_SRC_XY_ADDR |
1376 rop, &par->neo2200->bltCntl);
1377
1378 switch (info->var.bits_per_pixel) {
1379 case 8:
1380 writel(rect->color, &par->neo2200->fgColor);
1381 break;
1382 case 16:
1383 case 24:
1384 writel(((u32 *) (info->pseudo_palette))[rect->color],
1385 &par->neo2200->fgColor);
1386 break;
1387 }
1388
1389 writel(dst * ((info->var.bits_per_pixel + 7) >> 3),
1390 &par->neo2200->dstStart);
1391 writel((rect->height << 16) | (rect->width & 0xffff),
1392 &par->neo2200->xyExt);
1393 }
1394
1395 static void
1396 neo2200_copyarea(struct fb_info *info, const struct fb_copyarea *area)
1397 {
1398 u32 sx = area->sx, sy = area->sy, dx = area->dx, dy = area->dy;
1399 struct neofb_par *par = info->par;
1400 u_long src, dst, bltCntl;
1401
1402 bltCntl = NEO_BC3_FIFO_EN | NEO_BC3_SKIP_MAPPING | 0x0C0000;
1403
1404 if ((dy > sy) || ((dy == sy) && (dx > sx))) {
1405 /* Start with the lower right corner */
1406 sy += (area->height - 1);
1407 dy += (area->height - 1);
1408 sx += (area->width - 1);
1409 dx += (area->width - 1);
1410
1411 bltCntl |= NEO_BC0_X_DEC | NEO_BC0_DST_Y_DEC | NEO_BC0_SRC_Y_DEC;
1412 }
1413
1414 src = sx * (info->var.bits_per_pixel >> 3) + sy*info->fix.line_length;
1415 dst = dx * (info->var.bits_per_pixel >> 3) + dy*info->fix.line_length;
1416
1417 neo2200_wait_fifo(info, 4);
1418
1419 /* set blt control */
1420 writel(bltCntl, &par->neo2200->bltCntl);
1421
1422 writel(src, &par->neo2200->srcStart);
1423 writel(dst, &par->neo2200->dstStart);
1424 writel((area->height << 16) | (area->width & 0xffff),
1425 &par->neo2200->xyExt);
1426 }
1427
1428 static void
1429 neo2200_imageblit(struct fb_info *info, const struct fb_image *image)
1430 {
1431 struct neofb_par *par = info->par;
1432 int s_pitch = (image->width * image->depth + 7) >> 3;
1433 int scan_align = info->pixmap.scan_align - 1;
1434 int buf_align = info->pixmap.buf_align - 1;
1435 int bltCntl_flags, d_pitch, data_len;
1436
1437 // The data is padded for the hardware
1438 d_pitch = (s_pitch + scan_align) & ~scan_align;
1439 data_len = ((d_pitch * image->height) + buf_align) & ~buf_align;
1440
1441 neo2200_sync(info);
1442
1443 if (image->depth == 1) {
1444 if (info->var.bits_per_pixel == 24 && image->width < 16) {
1445 /* FIXME. There is a bug with accelerated color-expanded
1446 * transfers in 24 bit mode if the image being transferred
1447 * is less than 16 bits wide. This is due to insufficient
1448 * padding when writing the image. We need to adjust
1449 * struct fb_pixmap. Not yet done. */
1450 cfb_imageblit(info, image);
1451 return;
1452 }
1453 bltCntl_flags = NEO_BC0_SRC_MONO;
1454 } else if (image->depth == info->var.bits_per_pixel) {
1455 bltCntl_flags = 0;
1456 } else {
1457 /* We don't currently support hardware acceleration if image
1458 * depth is different from display */
1459 cfb_imageblit(info, image);
1460 return;
1461 }
1462
1463 switch (info->var.bits_per_pixel) {
1464 case 8:
1465 writel(image->fg_color, &par->neo2200->fgColor);
1466 writel(image->bg_color, &par->neo2200->bgColor);
1467 break;
1468 case 16:
1469 case 24:
1470 writel(((u32 *) (info->pseudo_palette))[image->fg_color],
1471 &par->neo2200->fgColor);
1472 writel(((u32 *) (info->pseudo_palette))[image->bg_color],
1473 &par->neo2200->bgColor);
1474 break;
1475 }
1476
1477 writel(NEO_BC0_SYS_TO_VID |
1478 NEO_BC3_SKIP_MAPPING | bltCntl_flags |
1479 // NEO_BC3_DST_XY_ADDR |
1480 0x0c0000, &par->neo2200->bltCntl);
1481
1482 writel(0, &par->neo2200->srcStart);
1483 // par->neo2200->dstStart = (image->dy << 16) | (image->dx & 0xffff);
1484 writel(((image->dx & 0xffff) * (info->var.bits_per_pixel >> 3) +
1485 image->dy * info->fix.line_length), &par->neo2200->dstStart);
1486 writel((image->height << 16) | (image->width & 0xffff),
1487 &par->neo2200->xyExt);
1488
1489 memcpy_toio(par->mmio_vbase + 0x100000, image->data, data_len);
1490 }
1491
1492 static void
1493 neofb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
1494 {
1495 switch (info->fix.accel) {
1496 case FB_ACCEL_NEOMAGIC_NM2200:
1497 case FB_ACCEL_NEOMAGIC_NM2230:
1498 case FB_ACCEL_NEOMAGIC_NM2360:
1499 case FB_ACCEL_NEOMAGIC_NM2380:
1500 neo2200_fillrect(info, rect);
1501 break;
1502 default:
1503 cfb_fillrect(info, rect);
1504 break;
1505 }
1506 }
1507
1508 static void
1509 neofb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
1510 {
1511 switch (info->fix.accel) {
1512 case FB_ACCEL_NEOMAGIC_NM2200:
1513 case FB_ACCEL_NEOMAGIC_NM2230:
1514 case FB_ACCEL_NEOMAGIC_NM2360:
1515 case FB_ACCEL_NEOMAGIC_NM2380:
1516 neo2200_copyarea(info, area);
1517 break;
1518 default:
1519 cfb_copyarea(info, area);
1520 break;
1521 }
1522 }
1523
1524 static void
1525 neofb_imageblit(struct fb_info *info, const struct fb_image *image)
1526 {
1527 switch (info->fix.accel) {
1528 case FB_ACCEL_NEOMAGIC_NM2200:
1529 case FB_ACCEL_NEOMAGIC_NM2230:
1530 case FB_ACCEL_NEOMAGIC_NM2360:
1531 case FB_ACCEL_NEOMAGIC_NM2380:
1532 neo2200_imageblit(info, image);
1533 break;
1534 default:
1535 cfb_imageblit(info, image);
1536 break;
1537 }
1538 }
1539
1540 static int
1541 neofb_sync(struct fb_info *info)
1542 {
1543 switch (info->fix.accel) {
1544 case FB_ACCEL_NEOMAGIC_NM2200:
1545 case FB_ACCEL_NEOMAGIC_NM2230:
1546 case FB_ACCEL_NEOMAGIC_NM2360:
1547 case FB_ACCEL_NEOMAGIC_NM2380:
1548 neo2200_sync(info);
1549 break;
1550 default:
1551 break;
1552 }
1553 return 0;
1554 }
1555
1556 /*
1557 static void
1558 neofb_draw_cursor(struct fb_info *info, u8 *dst, u8 *src, unsigned int width)
1559 {
1560 //memset_io(info->sprite.addr, 0xff, 1);
1561 }
1562
1563 static int
1564 neofb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1565 {
1566 struct neofb_par *par = (struct neofb_par *) info->par;
1567
1568 * Disable cursor *
1569 write_le32(NEOREG_CURSCNTL, ~NEO_CURS_ENABLE, par);
1570
1571 if (cursor->set & FB_CUR_SETPOS) {
1572 u32 x = cursor->image.dx;
1573 u32 y = cursor->image.dy;
1574
1575 info->cursor.image.dx = x;
1576 info->cursor.image.dy = y;
1577 write_le32(NEOREG_CURSX, x, par);
1578 write_le32(NEOREG_CURSY, y, par);
1579 }
1580
1581 if (cursor->set & FB_CUR_SETSIZE) {
1582 info->cursor.image.height = cursor->image.height;
1583 info->cursor.image.width = cursor->image.width;
1584 }
1585
1586 if (cursor->set & FB_CUR_SETHOT)
1587 info->cursor.hot = cursor->hot;
1588
1589 if (cursor->set & FB_CUR_SETCMAP) {
1590 if (cursor->image.depth == 1) {
1591 u32 fg = cursor->image.fg_color;
1592 u32 bg = cursor->image.bg_color;
1593
1594 info->cursor.image.fg_color = fg;
1595 info->cursor.image.bg_color = bg;
1596
1597 fg = ((fg & 0xff0000) >> 16) | ((fg & 0xff) << 16) | (fg & 0xff00);
1598 bg = ((bg & 0xff0000) >> 16) | ((bg & 0xff) << 16) | (bg & 0xff00);
1599 write_le32(NEOREG_CURSFGCOLOR, fg, par);
1600 write_le32(NEOREG_CURSBGCOLOR, bg, par);
1601 }
1602 }
1603
1604 if (cursor->set & FB_CUR_SETSHAPE)
1605 fb_load_cursor_image(info);
1606
1607 if (info->cursor.enable)
1608 write_le32(NEOREG_CURSCNTL, NEO_CURS_ENABLE, par);
1609 return 0;
1610 }
1611 */
1612
1613 static struct fb_ops neofb_ops = {
1614 .owner = THIS_MODULE,
1615 .fb_open = neofb_open,
1616 .fb_release = neofb_release,
1617 .fb_check_var = neofb_check_var,
1618 .fb_set_par = neofb_set_par,
1619 .fb_setcolreg = neofb_setcolreg,
1620 .fb_pan_display = neofb_pan_display,
1621 .fb_blank = neofb_blank,
1622 .fb_sync = neofb_sync,
1623 .fb_fillrect = neofb_fillrect,
1624 .fb_copyarea = neofb_copyarea,
1625 .fb_imageblit = neofb_imageblit,
1626 };
1627
1628 /* --------------------------------------------------------------------- */
1629
1630 static struct fb_videomode mode800x480 = {
1631 .xres = 800,
1632 .yres = 480,
1633 .pixclock = 25000,
1634 .left_margin = 88,
1635 .right_margin = 40,
1636 .upper_margin = 23,
1637 .lower_margin = 1,
1638 .hsync_len = 128,
1639 .vsync_len = 4,
1640 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
1641 .vmode = FB_VMODE_NONINTERLACED
1642 };
1643
1644 static int neo_map_mmio(struct fb_info *info, struct pci_dev *dev)
1645 {
1646 struct neofb_par *par = info->par;
1647
1648 DBG("neo_map_mmio");
1649
1650 switch (info->fix.accel) {
1651 case FB_ACCEL_NEOMAGIC_NM2070:
1652 info->fix.mmio_start = pci_resource_start(dev, 0)+
1653 0x100000;
1654 break;
1655 case FB_ACCEL_NEOMAGIC_NM2090:
1656 case FB_ACCEL_NEOMAGIC_NM2093:
1657 info->fix.mmio_start = pci_resource_start(dev, 0)+
1658 0x200000;
1659 break;
1660 case FB_ACCEL_NEOMAGIC_NM2160:
1661 case FB_ACCEL_NEOMAGIC_NM2097:
1662 case FB_ACCEL_NEOMAGIC_NM2200:
1663 case FB_ACCEL_NEOMAGIC_NM2230:
1664 case FB_ACCEL_NEOMAGIC_NM2360:
1665 case FB_ACCEL_NEOMAGIC_NM2380:
1666 info->fix.mmio_start = pci_resource_start(dev, 1);
1667 break;
1668 default:
1669 info->fix.mmio_start = pci_resource_start(dev, 0);
1670 }
1671 info->fix.mmio_len = MMIO_SIZE;
1672
1673 if (!request_mem_region
1674 (info->fix.mmio_start, MMIO_SIZE, "memory mapped I/O")) {
1675 printk("neofb: memory mapped IO in use\n");
1676 return -EBUSY;
1677 }
1678
1679 par->mmio_vbase = ioremap(info->fix.mmio_start, MMIO_SIZE);
1680 if (!par->mmio_vbase) {
1681 printk("neofb: unable to map memory mapped IO\n");
1682 release_mem_region(info->fix.mmio_start,
1683 info->fix.mmio_len);
1684 return -ENOMEM;
1685 } else
1686 printk(KERN_INFO "neofb: mapped io at %p\n",
1687 par->mmio_vbase);
1688 return 0;
1689 }
1690
1691 static void neo_unmap_mmio(struct fb_info *info)
1692 {
1693 struct neofb_par *par = info->par;
1694
1695 DBG("neo_unmap_mmio");
1696
1697 iounmap(par->mmio_vbase);
1698 par->mmio_vbase = NULL;
1699
1700 release_mem_region(info->fix.mmio_start,
1701 info->fix.mmio_len);
1702 }
1703
1704 static int neo_map_video(struct fb_info *info, struct pci_dev *dev,
1705 int video_len)
1706 {
1707 //unsigned long addr;
1708 struct neofb_par *par = info->par;
1709
1710 DBG("neo_map_video");
1711
1712 info->fix.smem_start = pci_resource_start(dev, 0);
1713 info->fix.smem_len = video_len;
1714
1715 if (!request_mem_region(info->fix.smem_start, info->fix.smem_len,
1716 "frame buffer")) {
1717 printk("neofb: frame buffer in use\n");
1718 return -EBUSY;
1719 }
1720
1721 info->screen_base =
1722 ioremap_wc(info->fix.smem_start, info->fix.smem_len);
1723 if (!info->screen_base) {
1724 printk("neofb: unable to map screen memory\n");
1725 release_mem_region(info->fix.smem_start,
1726 info->fix.smem_len);
1727 return -ENOMEM;
1728 } else
1729 printk(KERN_INFO "neofb: mapped framebuffer at %p\n",
1730 info->screen_base);
1731
1732 par->wc_cookie = arch_phys_wc_add(info->fix.smem_start,
1733 pci_resource_len(dev, 0));
1734
1735 /* Clear framebuffer, it's all white in memory after boot */
1736 memset_io(info->screen_base, 0, info->fix.smem_len);
1737
1738 /* Allocate Cursor drawing pad.
1739 info->fix.smem_len -= PAGE_SIZE;
1740 addr = info->fix.smem_start + info->fix.smem_len;
1741 write_le32(NEOREG_CURSMEMPOS, ((0x000f & (addr >> 10)) << 8) |
1742 ((0x0ff0 & (addr >> 10)) >> 4), par);
1743 addr = (unsigned long) info->screen_base + info->fix.smem_len;
1744 info->sprite.addr = (u8 *) addr; */
1745 return 0;
1746 }
1747
1748 static void neo_unmap_video(struct fb_info *info)
1749 {
1750 struct neofb_par *par = info->par;
1751
1752 DBG("neo_unmap_video");
1753
1754 arch_phys_wc_del(par->wc_cookie);
1755 iounmap(info->screen_base);
1756 info->screen_base = NULL;
1757
1758 release_mem_region(info->fix.smem_start,
1759 info->fix.smem_len);
1760 }
1761
1762 static int neo_scan_monitor(struct fb_info *info)
1763 {
1764 struct neofb_par *par = info->par;
1765 unsigned char type, display;
1766 int w;
1767
1768 // Eventually we will have i2c support.
1769 info->monspecs.modedb = kmalloc(sizeof(struct fb_videomode), GFP_KERNEL);
1770 if (!info->monspecs.modedb)
1771 return -ENOMEM;
1772 info->monspecs.modedb_len = 1;
1773
1774 /* Determine the panel type */
1775 vga_wgfx(NULL, 0x09, 0x26);
1776 type = vga_rgfx(NULL, 0x21);
1777 display = vga_rgfx(NULL, 0x20);
1778 if (!par->internal_display && !par->external_display) {
1779 par->internal_display = display & 2 || !(display & 3) ? 1 : 0;
1780 par->external_display = display & 1;
1781 printk (KERN_INFO "Autodetected %s display\n",
1782 par->internal_display && par->external_display ? "simultaneous" :
1783 par->internal_display ? "internal" : "external");
1784 }
1785
1786 /* Determine panel width -- used in NeoValidMode. */
1787 w = vga_rgfx(NULL, 0x20);
1788 vga_wgfx(NULL, 0x09, 0x00);
1789 switch ((w & 0x18) >> 3) {
1790 case 0x00:
1791 // 640x480@60
1792 par->NeoPanelWidth = 640;
1793 par->NeoPanelHeight = 480;
1794 memcpy(info->monspecs.modedb, &vesa_modes[3], sizeof(struct fb_videomode));
1795 break;
1796 case 0x01:
1797 par->NeoPanelWidth = 800;
1798 if (par->libretto) {
1799 par->NeoPanelHeight = 480;
1800 memcpy(info->monspecs.modedb, &mode800x480, sizeof(struct fb_videomode));
1801 } else {
1802 // 800x600@60
1803 par->NeoPanelHeight = 600;
1804 memcpy(info->monspecs.modedb, &vesa_modes[8], sizeof(struct fb_videomode));
1805 }
1806 break;
1807 case 0x02:
1808 // 1024x768@60
1809 par->NeoPanelWidth = 1024;
1810 par->NeoPanelHeight = 768;
1811 memcpy(info->monspecs.modedb, &vesa_modes[13], sizeof(struct fb_videomode));
1812 break;
1813 case 0x03:
1814 /* 1280x1024@60 panel support needs to be added */
1815 #ifdef NOT_DONE
1816 par->NeoPanelWidth = 1280;
1817 par->NeoPanelHeight = 1024;
1818 memcpy(info->monspecs.modedb, &vesa_modes[20], sizeof(struct fb_videomode));
1819 break;
1820 #else
1821 printk(KERN_ERR
1822 "neofb: Only 640x480, 800x600/480 and 1024x768 panels are currently supported\n");
1823 return -1;
1824 #endif
1825 default:
1826 // 640x480@60
1827 par->NeoPanelWidth = 640;
1828 par->NeoPanelHeight = 480;
1829 memcpy(info->monspecs.modedb, &vesa_modes[3], sizeof(struct fb_videomode));
1830 break;
1831 }
1832
1833 printk(KERN_INFO "Panel is a %dx%d %s %s display\n",
1834 par->NeoPanelWidth,
1835 par->NeoPanelHeight,
1836 (type & 0x02) ? "color" : "monochrome",
1837 (type & 0x10) ? "TFT" : "dual scan");
1838 return 0;
1839 }
1840
1841 static int neo_init_hw(struct fb_info *info)
1842 {
1843 struct neofb_par *par = info->par;
1844 int videoRam = 896;
1845 int maxClock = 65000;
1846 int CursorMem = 1024;
1847 int CursorOff = 0x100;
1848
1849 DBG("neo_init_hw");
1850
1851 neoUnlock();
1852
1853 #if 0
1854 printk(KERN_DEBUG "--- Neo extended register dump ---\n");
1855 for (int w = 0; w < 0x85; w++)
1856 printk(KERN_DEBUG "CR %p: %p\n", (void *) w,
1857 (void *) vga_rcrt(NULL, w));
1858 for (int w = 0; w < 0xC7; w++)
1859 printk(KERN_DEBUG "GR %p: %p\n", (void *) w,
1860 (void *) vga_rgfx(NULL, w));
1861 #endif
1862 switch (info->fix.accel) {
1863 case FB_ACCEL_NEOMAGIC_NM2070:
1864 videoRam = 896;
1865 maxClock = 65000;
1866 break;
1867 case FB_ACCEL_NEOMAGIC_NM2090:
1868 case FB_ACCEL_NEOMAGIC_NM2093:
1869 case FB_ACCEL_NEOMAGIC_NM2097:
1870 videoRam = 1152;
1871 maxClock = 80000;
1872 break;
1873 case FB_ACCEL_NEOMAGIC_NM2160:
1874 videoRam = 2048;
1875 maxClock = 90000;
1876 break;
1877 case FB_ACCEL_NEOMAGIC_NM2200:
1878 videoRam = 2560;
1879 maxClock = 110000;
1880 break;
1881 case FB_ACCEL_NEOMAGIC_NM2230:
1882 videoRam = 3008;
1883 maxClock = 110000;
1884 break;
1885 case FB_ACCEL_NEOMAGIC_NM2360:
1886 videoRam = 4096;
1887 maxClock = 110000;
1888 break;
1889 case FB_ACCEL_NEOMAGIC_NM2380:
1890 videoRam = 6144;
1891 maxClock = 110000;
1892 break;
1893 }
1894 switch (info->fix.accel) {
1895 case FB_ACCEL_NEOMAGIC_NM2070:
1896 case FB_ACCEL_NEOMAGIC_NM2090:
1897 case FB_ACCEL_NEOMAGIC_NM2093:
1898 CursorMem = 2048;
1899 CursorOff = 0x100;
1900 break;
1901 case FB_ACCEL_NEOMAGIC_NM2097:
1902 case FB_ACCEL_NEOMAGIC_NM2160:
1903 CursorMem = 1024;
1904 CursorOff = 0x100;
1905 break;
1906 case FB_ACCEL_NEOMAGIC_NM2200:
1907 case FB_ACCEL_NEOMAGIC_NM2230:
1908 case FB_ACCEL_NEOMAGIC_NM2360:
1909 case FB_ACCEL_NEOMAGIC_NM2380:
1910 CursorMem = 1024;
1911 CursorOff = 0x1000;
1912
1913 par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase;
1914 break;
1915 }
1916 /*
1917 info->sprite.size = CursorMem;
1918 info->sprite.scan_align = 1;
1919 info->sprite.buf_align = 1;
1920 info->sprite.flags = FB_PIXMAP_IO;
1921 info->sprite.outbuf = neofb_draw_cursor;
1922 */
1923 par->maxClock = maxClock;
1924 par->cursorOff = CursorOff;
1925 return videoRam * 1024;
1926 }
1927
1928
1929 static struct fb_info *neo_alloc_fb_info(struct pci_dev *dev,
1930 const struct pci_device_id *id)
1931 {
1932 struct fb_info *info;
1933 struct neofb_par *par;
1934
1935 info = framebuffer_alloc(sizeof(struct neofb_par), &dev->dev);
1936
1937 if (!info)
1938 return NULL;
1939
1940 par = info->par;
1941
1942 info->fix.accel = id->driver_data;
1943
1944 par->pci_burst = !nopciburst;
1945 par->lcd_stretch = !nostretch;
1946 par->libretto = libretto;
1947
1948 par->internal_display = internal;
1949 par->external_display = external;
1950 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1951
1952 switch (info->fix.accel) {
1953 case FB_ACCEL_NEOMAGIC_NM2070:
1954 snprintf(info->fix.id, sizeof(info->fix.id),
1955 "MagicGraph 128");
1956 break;
1957 case FB_ACCEL_NEOMAGIC_NM2090:
1958 snprintf(info->fix.id, sizeof(info->fix.id),
1959 "MagicGraph 128V");
1960 break;
1961 case FB_ACCEL_NEOMAGIC_NM2093:
1962 snprintf(info->fix.id, sizeof(info->fix.id),
1963 "MagicGraph 128ZV");
1964 break;
1965 case FB_ACCEL_NEOMAGIC_NM2097:
1966 snprintf(info->fix.id, sizeof(info->fix.id),
1967 "MagicGraph 128ZV+");
1968 break;
1969 case FB_ACCEL_NEOMAGIC_NM2160:
1970 snprintf(info->fix.id, sizeof(info->fix.id),
1971 "MagicGraph 128XD");
1972 break;
1973 case FB_ACCEL_NEOMAGIC_NM2200:
1974 snprintf(info->fix.id, sizeof(info->fix.id),
1975 "MagicGraph 256AV");
1976 info->flags |= FBINFO_HWACCEL_IMAGEBLIT |
1977 FBINFO_HWACCEL_COPYAREA |
1978 FBINFO_HWACCEL_FILLRECT;
1979 break;
1980 case FB_ACCEL_NEOMAGIC_NM2230:
1981 snprintf(info->fix.id, sizeof(info->fix.id),
1982 "MagicGraph 256AV+");
1983 info->flags |= FBINFO_HWACCEL_IMAGEBLIT |
1984 FBINFO_HWACCEL_COPYAREA |
1985 FBINFO_HWACCEL_FILLRECT;
1986 break;
1987 case FB_ACCEL_NEOMAGIC_NM2360:
1988 snprintf(info->fix.id, sizeof(info->fix.id),
1989 "MagicGraph 256ZX");
1990 info->flags |= FBINFO_HWACCEL_IMAGEBLIT |
1991 FBINFO_HWACCEL_COPYAREA |
1992 FBINFO_HWACCEL_FILLRECT;
1993 break;
1994 case FB_ACCEL_NEOMAGIC_NM2380:
1995 snprintf(info->fix.id, sizeof(info->fix.id),
1996 "MagicGraph 256XL+");
1997 info->flags |= FBINFO_HWACCEL_IMAGEBLIT |
1998 FBINFO_HWACCEL_COPYAREA |
1999 FBINFO_HWACCEL_FILLRECT;
2000 break;
2001 }
2002
2003 info->fix.type = FB_TYPE_PACKED_PIXELS;
2004 info->fix.type_aux = 0;
2005 info->fix.xpanstep = 0;
2006 info->fix.ypanstep = 4;
2007 info->fix.ywrapstep = 0;
2008 info->fix.accel = id->driver_data;
2009
2010 info->fbops = &neofb_ops;
2011 info->pseudo_palette = par->palette;
2012 return info;
2013 }
2014
2015 static void neo_free_fb_info(struct fb_info *info)
2016 {
2017 if (info) {
2018 /*
2019 * Free the colourmap
2020 */
2021 fb_dealloc_cmap(&info->cmap);
2022 framebuffer_release(info);
2023 }
2024 }
2025
2026 /* --------------------------------------------------------------------- */
2027
2028 static int neofb_probe(struct pci_dev *dev, const struct pci_device_id *id)
2029 {
2030 struct fb_info *info;
2031 u_int h_sync, v_sync;
2032 int video_len, err;
2033
2034 DBG("neofb_probe");
2035
2036 err = pci_enable_device(dev);
2037 if (err)
2038 return err;
2039
2040 err = -ENOMEM;
2041 info = neo_alloc_fb_info(dev, id);
2042 if (!info)
2043 return err;
2044
2045 err = neo_map_mmio(info, dev);
2046 if (err)
2047 goto err_map_mmio;
2048
2049 err = neo_scan_monitor(info);
2050 if (err)
2051 goto err_scan_monitor;
2052
2053 video_len = neo_init_hw(info);
2054 if (video_len < 0) {
2055 err = video_len;
2056 goto err_init_hw;
2057 }
2058
2059 err = neo_map_video(info, dev, video_len);
2060 if (err)
2061 goto err_init_hw;
2062
2063 if (!fb_find_mode(&info->var, info, mode_option, NULL, 0,
2064 info->monspecs.modedb, 16)) {
2065 printk(KERN_ERR "neofb: Unable to find usable video mode.\n");
2066 err = -EINVAL;
2067 goto err_map_video;
2068 }
2069
2070 /*
2071 * Calculate the hsync and vsync frequencies. Note that
2072 * we split the 1e12 constant up so that we can preserve
2073 * the precision and fit the results into 32-bit registers.
2074 * (1953125000 * 512 = 1e12)
2075 */
2076 h_sync = 1953125000 / info->var.pixclock;
2077 h_sync =
2078 h_sync * 512 / (info->var.xres + info->var.left_margin +
2079 info->var.right_margin + info->var.hsync_len);
2080 v_sync =
2081 h_sync / (info->var.yres + info->var.upper_margin +
2082 info->var.lower_margin + info->var.vsync_len);
2083
2084 printk(KERN_INFO "neofb v" NEOFB_VERSION
2085 ": %dkB VRAM, using %dx%d, %d.%03dkHz, %dHz\n",
2086 info->fix.smem_len >> 10, info->var.xres,
2087 info->var.yres, h_sync / 1000, h_sync % 1000, v_sync);
2088
2089 err = fb_alloc_cmap(&info->cmap, 256, 0);
2090 if (err < 0)
2091 goto err_map_video;
2092
2093 err = register_framebuffer(info);
2094 if (err < 0)
2095 goto err_reg_fb;
2096
2097 fb_info(info, "%s frame buffer device\n", info->fix.id);
2098
2099 /*
2100 * Our driver data
2101 */
2102 pci_set_drvdata(dev, info);
2103 return 0;
2104
2105 err_reg_fb:
2106 fb_dealloc_cmap(&info->cmap);
2107 err_map_video:
2108 neo_unmap_video(info);
2109 err_init_hw:
2110 fb_destroy_modedb(info->monspecs.modedb);
2111 err_scan_monitor:
2112 neo_unmap_mmio(info);
2113 err_map_mmio:
2114 neo_free_fb_info(info);
2115 return err;
2116 }
2117
2118 static void neofb_remove(struct pci_dev *dev)
2119 {
2120 struct fb_info *info = pci_get_drvdata(dev);
2121
2122 DBG("neofb_remove");
2123
2124 if (info) {
2125 /*
2126 * If unregister_framebuffer fails, then
2127 * we will be leaving hooks that could cause
2128 * oopsen laying around.
2129 */
2130 if (unregister_framebuffer(info))
2131 printk(KERN_WARNING
2132 "neofb: danger danger! Oopsen imminent!\n");
2133
2134 neo_unmap_video(info);
2135 fb_destroy_modedb(info->monspecs.modedb);
2136 neo_unmap_mmio(info);
2137 neo_free_fb_info(info);
2138 }
2139 }
2140
2141 static const struct pci_device_id neofb_devices[] = {
2142 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2070,
2143 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2070},
2144
2145 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2090,
2146 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2090},
2147
2148 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2093,
2149 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2093},
2150
2151 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2097,
2152 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2097},
2153
2154 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2160,
2155 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2160},
2156
2157 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2200,
2158 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2200},
2159
2160 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2230,
2161 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2230},
2162
2163 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2360,
2164 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2360},
2165
2166 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2380,
2167 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2380},
2168
2169 {0, 0, 0, 0, 0, 0, 0}
2170 };
2171
2172 MODULE_DEVICE_TABLE(pci, neofb_devices);
2173
2174 static struct pci_driver neofb_driver = {
2175 .name = "neofb",
2176 .id_table = neofb_devices,
2177 .probe = neofb_probe,
2178 .remove = neofb_remove,
2179 };
2180
2181 /* ************************* init in-kernel code ************************** */
2182
2183 #ifndef MODULE
2184 static int __init neofb_setup(char *options)
2185 {
2186 char *this_opt;
2187
2188 DBG("neofb_setup");
2189
2190 if (!options || !*options)
2191 return 0;
2192
2193 while ((this_opt = strsep(&options, ",")) != NULL) {
2194 if (!*this_opt)
2195 continue;
2196
2197 if (!strncmp(this_opt, "internal", 8))
2198 internal = 1;
2199 else if (!strncmp(this_opt, "external", 8))
2200 external = 1;
2201 else if (!strncmp(this_opt, "nostretch", 9))
2202 nostretch = 1;
2203 else if (!strncmp(this_opt, "nopciburst", 10))
2204 nopciburst = 1;
2205 else if (!strncmp(this_opt, "libretto", 8))
2206 libretto = 1;
2207 else
2208 mode_option = this_opt;
2209 }
2210 return 0;
2211 }
2212 #endif /* MODULE */
2213
2214 static int __init neofb_init(void)
2215 {
2216 #ifndef MODULE
2217 char *option = NULL;
2218
2219 if (fb_get_options("neofb", &option))
2220 return -ENODEV;
2221 neofb_setup(option);
2222 #endif
2223 return pci_register_driver(&neofb_driver);
2224 }
2225
2226 module_init(neofb_init);
2227
2228 #ifdef MODULE
2229 static void __exit neofb_exit(void)
2230 {
2231 pci_unregister_driver(&neofb_driver);
2232 }
2233
2234 module_exit(neofb_exit);
2235 #endif /* MODULE */
Linux with added FPC-III support