FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/vga.c
1 /* $NetBSD: vga.c,v 1.100 2008/03/16 19:57:39 dyoung Exp $ */
2
3 /*
4 * Copyright (c) 1995, 1996 Carnegie-Mellon University.
5 * All rights reserved.
6 *
7 * Author: Chris G. Demetriou
8 *
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
22 * School of Computer Science
23 * Carnegie Mellon University
24 * Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 */
29
30 #include <sys/cdefs.h>
31 __KERNEL_RCSID(0, "$NetBSD: vga.c,v 1.100 2008/03/16 19:57:39 dyoung Exp $");
32
33 /* for WSCONS_SUPPORT_PCVTFONTS */
34 #include "opt_wsdisplay_compat.h"
35 /* for WSDISPLAY_CUSTOM_BORDER */
36 #include "opt_wsdisplay_border.h"
37 /* for WSDISPLAY_CUSTOM_OUTPUT */
38 #include "opt_wsmsgattrs.h"
39
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/callout.h>
43 #include <sys/kernel.h>
44 #include <sys/device.h>
45 #include <sys/malloc.h>
46 #include <sys/queue.h>
47 #include <sys/bus.h>
48
49 #include <dev/ic/mc6845reg.h>
50 #include <dev/ic/pcdisplayvar.h>
51 #include <dev/ic/vgareg.h>
52 #include <dev/ic/vgavar.h>
53
54 #include <dev/wscons/wsdisplayvar.h>
55 #include <dev/wscons/wsconsio.h>
56 #include <dev/wscons/unicode.h>
57 #include <dev/wsfont/wsfont.h>
58
59 #include <dev/ic/pcdisplay.h>
60
61 #ifdef __i386__
62 #include <arch/i386/bios/vesafbvar.h>
63 #endif
64
65 int vga_no_builtinfont = 0;
66
67 static struct wsdisplay_font _vga_builtinfont = {
68 "builtin", /* typeface name */
69 0, /* firstchar */
70 256, /* numbers */
71 WSDISPLAY_FONTENC_IBM, /* encoding */
72 8, /* width */
73 16, /* height */
74 1, /* stride */
75 WSDISPLAY_FONTORDER_L2R, /* bit order */
76 0, /* byte order */
77 NULL /* data */
78 };
79
80 struct egavga_font {
81 struct wsdisplay_font *wsfont;
82 int cookie; /* wsfont handle, -1 invalid */
83 int slot; /* in adapter RAM */
84 int usecount;
85 TAILQ_ENTRY(egavga_font) next; /* LRU queue */
86 };
87
88 static struct egavga_font vga_builtinfont = {
89 .wsfont = &_vga_builtinfont,
90 .cookie = -1,
91 .slot = 0,
92 };
93
94 #ifdef VGA_CONSOLE_SCREENTYPE
95 static struct egavga_font vga_consolefont;
96 #endif
97
98 struct vgascreen {
99 struct pcdisplayscreen pcs;
100
101 LIST_ENTRY(vgascreen) next;
102
103 struct vga_config *cfg;
104
105 /* videostate */
106 struct egavga_font *fontset1, *fontset2;
107 /* font data */
108 /* palette */
109
110 int mindispoffset, maxdispoffset;
111 int vga_rollover;
112 int visibleoffset;
113 };
114
115 static int vgaconsole, vga_console_type, vga_console_attached;
116 static struct vgascreen vga_console_screen;
117 static struct vga_config vga_console_vc;
118
119 struct egavga_font *egavga_getfont(struct vga_config *, struct vgascreen *,
120 const char *, int);
121 void egavga_unreffont(struct vga_config *, struct egavga_font *);
122
123 int vga_selectfont(struct vga_config *, struct vgascreen *, const char *,
124 const char *);
125 void vga_init_screen(struct vga_config *, struct vgascreen *,
126 const struct wsscreen_descr *, int, long *);
127 void vga_init(struct vga_config *, bus_space_tag_t, bus_space_tag_t);
128 static void vga_setfont(struct vga_config *, struct vgascreen *);
129
130 static int vga_mapchar(void *, int, unsigned int *);
131 void vga_putchar(void *, int, int, u_int, long);
132 static int vga_allocattr(void *, int, int, int, long *);
133 static void vga_copyrows(void *, int, int, int);
134 #ifdef WSDISPLAY_SCROLLSUPPORT
135 void vga_scroll (void *, void *, int);
136 #endif
137
138 const struct wsdisplay_emulops vga_emulops = {
139 pcdisplay_cursor,
140 vga_mapchar,
141 vga_putchar,
142 pcdisplay_copycols,
143 pcdisplay_erasecols,
144 vga_copyrows,
145 pcdisplay_eraserows,
146 vga_allocattr,
147 #ifdef WSDISPLAY_CUSTOM_OUTPUT
148 pcdisplay_replaceattr,
149 #else
150 NULL,
151 #endif
152 };
153
154 /*
155 * translate WS(=ANSI) color codes to standard pc ones
156 */
157 static const unsigned char fgansitopc[] = {
158 #ifdef __alpha__
159 /*
160 * XXX DEC HAS SWITCHED THE CODES FOR BLUE AND RED!!!
161 * XXX We should probably not bother with this
162 * XXX (reinitialize the palette registers).
163 */
164 FG_BLACK, FG_BLUE, FG_GREEN, FG_CYAN, FG_RED,
165 FG_MAGENTA, FG_BROWN, FG_LIGHTGREY
166 #else
167 FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE,
168 FG_MAGENTA, FG_CYAN, FG_LIGHTGREY
169 #endif
170 }, bgansitopc[] = {
171 #ifdef __alpha__
172 BG_BLACK, BG_BLUE, BG_GREEN, BG_CYAN, BG_RED,
173 BG_MAGENTA, BG_BROWN, BG_LIGHTGREY
174 #else
175 BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE,
176 BG_MAGENTA, BG_CYAN, BG_LIGHTGREY
177 #endif
178 };
179
180 const struct wsscreen_descr vga_25lscreen = {
181 "80x25", 80, 25,
182 &vga_emulops,
183 8, 16,
184 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK,
185 NULL,
186 }, vga_25lscreen_mono = {
187 "80x25", 80, 25,
188 &vga_emulops,
189 8, 16,
190 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE,
191 NULL,
192 }, vga_25lscreen_bf = {
193 "80x25bf", 80, 25,
194 &vga_emulops,
195 8, 16,
196 WSSCREEN_WSCOLORS | WSSCREEN_BLINK,
197 NULL,
198 }, vga_40lscreen = {
199 "80x40", 80, 40,
200 &vga_emulops,
201 8, 10,
202 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK,
203 NULL,
204 }, vga_40lscreen_mono = {
205 "80x40", 80, 40,
206 &vga_emulops,
207 8, 10,
208 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE,
209 NULL,
210 }, vga_40lscreen_bf = {
211 "80x40bf", 80, 40,
212 &vga_emulops,
213 8, 10,
214 WSSCREEN_WSCOLORS | WSSCREEN_BLINK,
215 NULL,
216 }, vga_50lscreen = {
217 "80x50", 80, 50,
218 &vga_emulops,
219 8, 8,
220 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK,
221 NULL,
222 }, vga_50lscreen_mono = {
223 "80x50", 80, 50,
224 &vga_emulops,
225 8, 8,
226 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE,
227 NULL,
228 }, vga_50lscreen_bf = {
229 "80x50bf", 80, 50,
230 &vga_emulops,
231 8, 8,
232 WSSCREEN_WSCOLORS | WSSCREEN_BLINK,
233 NULL,
234 }, vga_24lscreen = {
235 "80x24", 80, 24,
236 &vga_emulops,
237 8, 16,
238 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK,
239 NULL,
240 }, vga_24lscreen_mono = {
241 "80x24", 80, 24,
242 &vga_emulops,
243 8, 16,
244 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE,
245 NULL,
246 }, vga_24lscreen_bf = {
247 "80x24bf", 80, 24,
248 &vga_emulops,
249 8, 16,
250 WSSCREEN_WSCOLORS | WSSCREEN_BLINK,
251 NULL,
252 };
253
254 #define VGA_SCREEN_CANTWOFONTS(type) (!((type)->capabilities & WSSCREEN_HILIT))
255
256 const struct wsscreen_descr *_vga_scrlist[] = {
257 &vga_25lscreen,
258 &vga_25lscreen_bf,
259 &vga_40lscreen,
260 &vga_40lscreen_bf,
261 &vga_50lscreen,
262 &vga_50lscreen_bf,
263 &vga_24lscreen,
264 &vga_24lscreen_bf,
265 /* XXX other formats, graphics screen? */
266 }, *_vga_scrlist_mono[] = {
267 &vga_25lscreen_mono,
268 &vga_40lscreen_mono,
269 &vga_50lscreen_mono,
270 &vga_24lscreen_mono,
271 /* XXX other formats, graphics screen? */
272 };
273
274 const struct wsscreen_list vga_screenlist = {
275 sizeof(_vga_scrlist) / sizeof(struct wsscreen_descr *),
276 _vga_scrlist
277 }, vga_screenlist_mono = {
278 sizeof(_vga_scrlist_mono) / sizeof(struct wsscreen_descr *),
279 _vga_scrlist_mono
280 };
281
282 static int vga_ioctl(void *, void *, u_long, void *, int, struct lwp *);
283 static paddr_t vga_mmap(void *, void *, off_t, int);
284 static int vga_alloc_screen(void *, const struct wsscreen_descr *,
285 void **, int *, int *, long *);
286 static void vga_free_screen(void *, void *);
287 static int vga_show_screen(void *, void *, int,
288 void (*)(void *, int, int), void *);
289 static int vga_load_font(void *, void *, struct wsdisplay_font *);
290 #ifdef WSDISPLAY_CUSTOM_BORDER
291 static int vga_getborder(struct vga_config *, u_int *);
292 static int vga_setborder(struct vga_config *, u_int);
293 #endif /* WSDISPLAY_CUSTOM_BORDER */
294
295 void vga_doswitch(struct vga_config *);
296
297 const struct wsdisplay_accessops vga_accessops = {
298 vga_ioctl,
299 vga_mmap,
300 vga_alloc_screen,
301 vga_free_screen,
302 vga_show_screen,
303 vga_load_font,
304 NULL,
305 #ifdef WSDISPLAY_SCROLLSUPPORT
306 vga_scroll,
307 #else
308 NULL,
309 #endif
310 };
311
312 /*
313 * We want at least ASCII 32..127 be present in the
314 * first font slot.
315 */
316 #define vga_valid_primary_font(f) \
317 (f->wsfont->encoding == WSDISPLAY_FONTENC_IBM || \
318 f->wsfont->encoding == WSDISPLAY_FONTENC_ISO || \
319 f->wsfont->encoding == WSDISPLAY_FONTENC_ISO7)
320
321 struct egavga_font *
322 egavga_getfont(struct vga_config *vc, struct vgascreen *scr, const char *name,
323 int primary)
324 {
325 struct egavga_font *f;
326 int cookie;
327 struct wsdisplay_font *wf;
328
329 TAILQ_FOREACH(f, &vc->vc_fontlist, next) {
330 if (wsfont_matches(f->wsfont, name,
331 8, scr->pcs.type->fontheight, 0) &&
332 (!primary || vga_valid_primary_font(f))) {
333 #ifdef VGAFONTDEBUG
334 if (scr != &vga_console_screen || vga_console_attached)
335 printf("vga_getfont: %s already present\n",
336 name ? name : "<default>");
337 #endif
338 goto found;
339 }
340 }
341
342 cookie = wsfont_find(name, 8, scr->pcs.type->fontheight, 0,
343 WSDISPLAY_FONTORDER_L2R, 0);
344 /* XXX obey "primary" */
345 if (cookie == -1) {
346 #ifdef VGAFONTDEBUG
347 if (scr != &vga_console_screen || vga_console_attached)
348 printf("vga_getfont: %s not found\n",
349 name ? name : "<default>");
350 #endif
351 return (0);
352 }
353
354 if (wsfont_lock(cookie, &wf))
355 return (0);
356
357 #ifdef VGA_CONSOLE_SCREENTYPE
358 if (scr == &vga_console_screen)
359 f = &vga_consolefont;
360 else
361 #endif
362 f = malloc(sizeof(struct egavga_font), M_DEVBUF, M_NOWAIT);
363 if (!f) {
364 wsfont_unlock(cookie);
365 return (0);
366 }
367 f->wsfont = wf;
368 f->cookie = cookie;
369 f->slot = -1; /* not yet loaded */
370 f->usecount = 0; /* incremented below */
371 TAILQ_INSERT_TAIL(&vc->vc_fontlist, f, next);
372
373 found:
374 f->usecount++;
375 #ifdef VGAFONTDEBUG
376 if (scr != &vga_console_screen || vga_console_attached)
377 printf("vga_getfont: usecount=%d\n", f->usecount);
378 #endif
379 return (f);
380 }
381
382 void
383 egavga_unreffont(struct vga_config *vc, struct egavga_font *f)
384 {
385
386 f->usecount--;
387 #ifdef VGAFONTDEBUG
388 printf("vga_unreffont: usecount=%d\n", f->usecount);
389 #endif
390 if (f->usecount == 0 && f->cookie != -1) {
391 TAILQ_REMOVE(&vc->vc_fontlist, f, next);
392 if (f->slot != -1) {
393 KASSERT(vc->vc_fonts[f->slot] == f);
394 vc->vc_fonts[f->slot] = 0;
395 }
396 wsfont_unlock(f->cookie);
397 #ifdef VGA_CONSOLE_SCREENTYPE
398 if (f != &vga_consolefont)
399 #endif
400 free(f, M_DEVBUF);
401 }
402 }
403
404 int
405 vga_selectfont(struct vga_config *vc, struct vgascreen *scr, const char *name1,
406 const char *name2)
407 {
408 const struct wsscreen_descr *type = scr->pcs.type;
409 struct egavga_font *f1, *f2;
410
411 f1 = egavga_getfont(vc, scr, name1, 1);
412 if (!f1)
413 return (ENXIO);
414
415 if (VGA_SCREEN_CANTWOFONTS(type) && name2) {
416 f2 = egavga_getfont(vc, scr, name2, 0);
417 if (!f2) {
418 egavga_unreffont(vc, f1);
419 return (ENXIO);
420 }
421 } else
422 f2 = 0;
423
424 #ifdef VGAFONTDEBUG
425 if (scr != &vga_console_screen || vga_console_attached) {
426 printf("vga (%s): font1=%s (slot %d)", type->name,
427 f1->wsfont->name, f1->slot);
428 if (f2)
429 printf(", font2=%s (slot %d)",
430 f2->wsfont->name, f2->slot);
431 printf("\n");
432 }
433 #endif
434 if (scr->fontset1)
435 egavga_unreffont(vc, scr->fontset1);
436 scr->fontset1 = f1;
437 if (scr->fontset2)
438 egavga_unreffont(vc, scr->fontset2);
439 scr->fontset2 = f2;
440 return (0);
441 }
442
443 void
444 vga_init_screen(struct vga_config *vc, struct vgascreen *scr,
445 const struct wsscreen_descr *type, int existing, long *attrp)
446 {
447 int cpos;
448 int res;
449
450 scr->cfg = vc;
451 scr->pcs.hdl = (struct pcdisplay_handle *)&vc->hdl;
452 scr->pcs.type = type;
453 scr->pcs.active = existing;
454 scr->mindispoffset = 0;
455 if (vc->vc_quirks & VGA_QUIRK_NOFASTSCROLL)
456 scr->maxdispoffset = 0;
457 else
458 scr->maxdispoffset = 0x8000 - type->nrows * type->ncols * 2;
459
460 if (existing) {
461 vc->active = scr;
462
463 cpos = vga_6845_read(&vc->hdl, cursorh) << 8;
464 cpos |= vga_6845_read(&vc->hdl, cursorl);
465
466 /* make sure we have a valid cursor position */
467 if (cpos < 0 || cpos >= type->nrows * type->ncols)
468 cpos = 0;
469
470 scr->pcs.dispoffset = vga_6845_read(&vc->hdl, startadrh) << 9;
471 scr->pcs.dispoffset |= vga_6845_read(&vc->hdl, startadrl) << 1;
472
473 /* make sure we have a valid memory offset */
474 if (scr->pcs.dispoffset < scr->mindispoffset ||
475 scr->pcs.dispoffset > scr->maxdispoffset)
476 scr->pcs.dispoffset = scr->mindispoffset;
477
478 if (type != vc->currenttype) {
479 vga_setscreentype(&vc->hdl, type);
480 vc->currenttype = type;
481 }
482 } else {
483 cpos = 0;
484 scr->pcs.dispoffset = scr->mindispoffset;
485 }
486
487 scr->pcs.visibleoffset = scr->pcs.dispoffset;
488 scr->vga_rollover = 0;
489
490 scr->pcs.cursorrow = cpos / type->ncols;
491 scr->pcs.cursorcol = cpos % type->ncols;
492 pcdisplay_cursor_init(&scr->pcs, existing);
493
494 #ifdef __alpha__
495 if (!vc->hdl.vh_mono)
496 /*
497 * DEC firmware uses a blue background.
498 * XXX These should be specified as kernel options for
499 * XXX alpha only, not hardcoded here (which is wrong
500 * XXX anyway because the emulation layer will assume
501 * XXX the default attribute is white on black).
502 */
503 res = vga_allocattr(scr, WSCOL_WHITE, WSCOL_BLUE,
504 WSATTR_WSCOLORS, attrp);
505 else
506 #endif
507 res = vga_allocattr(scr, 0, 0, 0, attrp);
508 #ifdef DIAGNOSTIC
509 if (res)
510 panic("vga_init_screen: attribute botch");
511 #endif
512
513 scr->pcs.mem = NULL;
514
515 scr->fontset1 = scr->fontset2 = 0;
516 if (vga_selectfont(vc, scr, 0, 0)) {
517 if (scr == &vga_console_screen)
518 panic("vga_init_screen: no font");
519 else
520 printf("vga_init_screen: no font\n");
521 }
522 if (existing)
523 vga_setfont(vc, scr);
524
525 vc->nscreens++;
526 LIST_INSERT_HEAD(&vc->screens, scr, next);
527 }
528
529 void
530 vga_init(struct vga_config *vc, bus_space_tag_t iot, bus_space_tag_t memt)
531 {
532 struct vga_handle *vh = &vc->hdl;
533 u_int8_t mor;
534 int i;
535
536 vh->vh_iot = iot;
537 vh->vh_memt = memt;
538
539 if (bus_space_map(vh->vh_iot, 0x3c0, 0x10, 0, &vh->vh_ioh_vga))
540 panic("vga_init: couldn't map vga io");
541
542 /* read "misc output register" */
543 mor = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAR);
544 vh->vh_mono = !(mor & 1);
545
546 if (bus_space_map(vh->vh_iot, (vh->vh_mono ? 0x3b0 : 0x3d0), 0x10, 0,
547 &vh->vh_ioh_6845))
548 panic("vga_init: couldn't map 6845 io");
549
550 if (bus_space_map(vh->vh_memt, 0xa0000, 0x20000, 0, &vh->vh_allmemh))
551 panic("vga_init: couldn't map memory");
552
553 if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh,
554 (vh->vh_mono ? 0x10000 : 0x18000), 0x8000, &vh->vh_memh))
555 panic("vga_init: mem subrange failed");
556
557 /* should only reserve the space (no need to map - save KVM) */
558 vc->vc_biostag = memt;
559 if (bus_space_map(vc->vc_biostag, 0xc0000, 0x8000, 0, &vc->vc_bioshdl))
560 vc->vc_biosmapped = 0;
561 else
562 vc->vc_biosmapped = 1;
563
564 vc->nscreens = 0;
565 LIST_INIT(&vc->screens);
566 vc->active = NULL;
567 vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen;
568 callout_init(&vc->vc_switch_callout, 0);
569
570 wsfont_init();
571 if (vga_no_builtinfont) {
572 struct wsdisplay_font *wf;
573 int cookie;
574
575 cookie = wsfont_find(NULL, 8, 16, 0,
576 WSDISPLAY_FONTORDER_L2R, 0);
577 if (cookie == -1 || wsfont_lock(cookie, &wf))
578 panic("vga_init: can't load console font");
579 vga_loadchars(&vc->hdl, 0, wf->firstchar, wf->numchars,
580 wf->fontheight, wf->data);
581 vga_builtinfont.wsfont = wf;
582 vga_builtinfont.cookie = cookie;
583 vga_builtinfont.slot = 0;
584 }
585 vc->vc_fonts[0] = &vga_builtinfont;
586 for (i = 1; i < 8; i++)
587 vc->vc_fonts[i] = 0;
588 TAILQ_INIT(&vc->vc_fontlist);
589 TAILQ_INSERT_HEAD(&vc->vc_fontlist, &vga_builtinfont, next);
590
591 vc->currentfontset1 = vc->currentfontset2 = 0;
592
593 if (!vh->vh_mono && (u_int)WSDISPLAY_BORDER_COLOR < sizeof(fgansitopc))
594 _vga_attr_write(vh, VGA_ATC_OVERSCAN,
595 fgansitopc[WSDISPLAY_BORDER_COLOR]);
596 }
597
598 void
599 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot,
600 bus_space_tag_t memt, int type, int quirks,
601 const struct vga_funcs *vf)
602 {
603 int console;
604 struct vga_config *vc;
605 struct wsemuldisplaydev_attach_args aa;
606
607 console = vga_is_console(iot, type);
608
609 if (console) {
610 vc = &vga_console_vc;
611 vga_console_attached = 1;
612 } else {
613 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK);
614 vga_init(vc, iot, memt);
615 }
616
617 if (quirks & VGA_QUIRK_ONEFONT) {
618 vc->vc_nfontslots = 1;
619 #ifndef VGA_CONSOLE_ATI_BROKEN_FONTSEL
620 /*
621 * XXX maybe invalidate font in slot > 0, but this can
622 * only be happen with VGA_CONSOLE_SCREENTYPE, and then
623 * we require VGA_CONSOLE_ATI_BROKEN_FONTSEL anyway.
624 */
625 #endif
626 } else {
627 vc->vc_nfontslots = 8;
628 #ifndef VGA_CONSOLE_ATI_BROKEN_FONTSEL
629 /*
630 * XXX maybe validate builtin font shifted to slot 1 if
631 * slot 0 got overwritten because of VGA_CONSOLE_SCREENTYPE,
632 * but it will be reloaded anyway if needed.
633 */
634 #endif
635 }
636
637 /*
638 * Save the builtin font to memory. In case it got overwritten
639 * in console initialization, use the copy in slot 1.
640 */
641 #ifdef VGA_CONSOLE_ATI_BROKEN_FONTSEL
642 #define BUILTINFONTLOC (vga_builtinfont.slot == -1 ? 1 : 0)
643 #else
644 KASSERT(vga_builtinfont.slot == 0);
645 #define BUILTINFONTLOC (0)
646 #endif
647 if (!vga_no_builtinfont) {
648 char *data =
649 malloc(256 * vga_builtinfont.wsfont->fontheight,
650 M_DEVBUF, M_WAITOK);
651 vga_readoutchars(&vc->hdl, BUILTINFONTLOC, 0, 256,
652 vga_builtinfont.wsfont->fontheight, data);
653 vga_builtinfont.wsfont->data = data;
654 }
655
656 vc->vc_type = type;
657 vc->vc_funcs = vf;
658 vc->vc_quirks = quirks;
659
660 sc->sc_vc = vc;
661 vc->softc = sc;
662
663 aa.console = console;
664 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist);
665 aa.accessops = &vga_accessops;
666 aa.accesscookie = vc;
667
668 config_found_ia(sc->sc_dev, "wsemuldisplaydev", &aa, wsemuldisplaydevprint);
669 }
670
671 int
672 vga_cnattach(bus_space_tag_t iot, bus_space_tag_t memt, int type, int check)
673 {
674 long defattr;
675 const struct wsscreen_descr *scr;
676
677 if (check && !vga_common_probe(iot, memt))
678 return (ENXIO);
679
680 /* set up bus-independent VGA configuration */
681 vga_init(&vga_console_vc, iot, memt);
682 #ifdef VGA_CONSOLE_SCREENTYPE
683 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ?
684 &vga_screenlist_mono : &vga_screenlist, VGA_CONSOLE_SCREENTYPE);
685 if (!scr)
686 panic("vga_cnattach: invalid screen type");
687 #else
688 scr = vga_console_vc.currenttype;
689 #endif
690 #ifdef VGA_CONSOLE_ATI_BROKEN_FONTSEL
691 /*
692 * On some (most/all?) ATI cards, only font slot 0 is usable.
693 * vga_init_screen() might need font slot 0 for a non-default
694 * console font, so save the builtin VGA font to another font slot.
695 * The attach() code will take care later.
696 */
697 vga_console_vc.vc_quirks |= VGA_QUIRK_ONEFONT; /* redundant */
698 vga_copyfont01(&vga_console_vc.hdl);
699 vga_console_vc.vc_nfontslots = 1;
700 #else
701 vga_console_vc.vc_nfontslots = 8;
702 #endif
703 #ifdef notdef
704 /* until we know better, assume "fast scrolling" does not work */
705 vga_console_vc.vc_quirks |= VGA_QUIRK_NOFASTSCROLL;
706 #endif
707
708 vga_init_screen(&vga_console_vc, &vga_console_screen, scr, 1, &defattr);
709
710 wsdisplay_cnattach(scr, &vga_console_screen,
711 vga_console_screen.pcs.cursorcol,
712 vga_console_screen.pcs.cursorrow, defattr);
713
714 vgaconsole = 1;
715 vga_console_type = type;
716 return (0);
717 }
718
719 int
720 vga_cndetach(void)
721 {
722 struct vga_config *vc;
723 struct vga_handle *vh;
724
725 vc = &vga_console_vc;
726 vh = &vc->hdl;
727
728 if (vgaconsole) {
729 bus_space_unmap(vh->vh_iot, vh->vh_ioh_vga, 0x10);
730 bus_space_unmap(vh->vh_iot, vh->vh_ioh_6845, 0x10);
731
732 return 1;
733 }
734
735 return 0;
736 }
737
738 int
739 vga_is_console(bus_space_tag_t iot, int type)
740 {
741 #ifdef __i386__
742 struct device *dv;
743 deviter_t di;
744 struct vesafb_softc *vesafb;
745
746 for (dv = deviter_first(&di, 0); dv != NULL; dv = deviter_next(&di)) {
747 if (device_is_a(dv, "vesafb")) {
748 vesafb = device_private(dv);
749 if (vesafb->sc_isconsole) {
750 deviter_release(&di);
751 return (0);
752 }
753 }
754 }
755 deviter_release(&di);
756 #endif
757 if (vgaconsole &&
758 !vga_console_attached &&
759 iot == vga_console_vc.hdl.vh_iot &&
760 (vga_console_type == -1 || (type == vga_console_type)))
761 return (1);
762 return (0);
763 }
764
765 static int
766 vga_get_video(struct vga_config *vc)
767 {
768
769 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0;
770 }
771
772 static void
773 vga_set_video(struct vga_config *vc, int state)
774 {
775 int val;
776
777 vga_ts_write(&vc->hdl, syncreset, 0x01);
778 if (state) { /* unblank screen */
779 val = vga_ts_read(&vc->hdl, mode);
780 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK);
781 #ifndef VGA_NO_VBLANK
782 val = vga_6845_read(&vc->hdl, mode);
783 vga_6845_write(&vc->hdl, mode, val | 0x80);
784 #endif
785 } else { /* blank screen */
786 val = vga_ts_read(&vc->hdl, mode);
787 vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK);
788 #ifndef VGA_NO_VBLANK
789 val = vga_6845_read(&vc->hdl, mode);
790 vga_6845_write(&vc->hdl, mode, val & ~0x80);
791 #endif
792 }
793 vga_ts_write(&vc->hdl, syncreset, 0x03);
794 }
795
796 int
797 vga_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l)
798 {
799 struct vga_config *vc = v;
800 struct vgascreen *scr = vs;
801 const struct vga_funcs *vf = vc->vc_funcs;
802
803 switch (cmd) {
804 case WSDISPLAYIO_GTYPE:
805 *(int *)data = vc->vc_type;
806 return 0;
807
808 case WSDISPLAYIO_GINFO:
809 /* XXX should get detailed hardware information here */
810 return EPASSTHROUGH;
811
812 case WSDISPLAYIO_GVIDEO:
813 *(int *)data = (vga_get_video(vc) ?
814 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF);
815 return 0;
816
817 case WSDISPLAYIO_SVIDEO:
818 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON);
819 return 0;
820
821 case WSDISPLAYIO_GETWSCHAR:
822 KASSERT(scr != NULL);
823 return pcdisplay_getwschar(&scr->pcs,
824 (struct wsdisplay_char *)data);
825
826 case WSDISPLAYIO_PUTWSCHAR:
827 KASSERT(scr != NULL);
828 return pcdisplay_putwschar(&scr->pcs,
829 (struct wsdisplay_char *)data);
830
831 #ifdef WSDISPLAY_CUSTOM_BORDER
832 case WSDISPLAYIO_GBORDER:
833 return (vga_getborder(vc, (u_int *)data));
834
835 case WSDISPLAYIO_SBORDER:
836 return (vga_setborder(vc, *(u_int *)data));
837 #endif
838
839 case WSDISPLAYIO_GETCMAP:
840 case WSDISPLAYIO_PUTCMAP:
841 case WSDISPLAYIO_GCURPOS:
842 case WSDISPLAYIO_SCURPOS:
843 case WSDISPLAYIO_GCURMAX:
844 case WSDISPLAYIO_GCURSOR:
845 case WSDISPLAYIO_SCURSOR:
846 /* NONE of these operations are by the generic VGA driver. */
847 return EPASSTHROUGH;
848 }
849
850 if (vc->vc_funcs == NULL)
851 return (EPASSTHROUGH);
852
853 if (vf->vf_ioctl == NULL)
854 return (EPASSTHROUGH);
855
856 return ((*vf->vf_ioctl)(v, cmd, data, flag, l));
857 }
858
859 static paddr_t
860 vga_mmap(void *v, void *vs, off_t offset, int prot)
861 {
862 struct vga_config *vc = v;
863 const struct vga_funcs *vf = vc->vc_funcs;
864
865 if (vc->vc_funcs == NULL)
866 return (-1);
867
868 if (vf->vf_mmap == NULL)
869 return (-1);
870
871 return ((*vf->vf_mmap)(v, offset, prot));
872 }
873
874 int
875 vga_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep,
876 int *curxp, int *curyp, long *defattrp)
877 {
878 struct vga_config *vc = v;
879 struct vgascreen *scr;
880
881 if (vc->nscreens == 1) {
882 struct vgascreen *scr1 = vc->screens.lh_first;
883 /*
884 * When allocating the second screen, get backing store
885 * for the first one too.
886 * XXX We could be more clever and use video RAM.
887 */
888 scr1->pcs.mem =
889 malloc(scr1->pcs.type->ncols * scr1->pcs.type->nrows * 2,
890 M_DEVBUF, M_WAITOK);
891 }
892
893 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK);
894 vga_init_screen(vc, scr, type, vc->nscreens == 0, defattrp);
895
896 if (vc->nscreens > 1) {
897 scr->pcs.mem = malloc(type->ncols * type->nrows * 2,
898 M_DEVBUF, M_WAITOK);
899 pcdisplay_eraserows(&scr->pcs, 0, type->nrows, *defattrp);
900 }
901
902 *cookiep = scr;
903 *curxp = scr->pcs.cursorcol;
904 *curyp = scr->pcs.cursorrow;
905
906 return (0);
907 }
908
909 void
910 vga_free_screen(void *v, void *cookie)
911 {
912 struct vgascreen *vs = cookie;
913 struct vga_config *vc = vs->cfg;
914
915 LIST_REMOVE(vs, next);
916 vc->nscreens--;
917 if (vs->fontset1)
918 egavga_unreffont(vc, vs->fontset1);
919 if (vs->fontset2)
920 egavga_unreffont(vc, vs->fontset2);
921
922 if (vs != &vga_console_screen)
923 free(vs, M_DEVBUF);
924 else
925 panic("vga_free_screen: console");
926
927 if (vc->active == vs)
928 vc->active = 0;
929 }
930
931 static void vga_usefont(struct vga_config *, struct egavga_font *);
932
933 static void
934 vga_usefont(struct vga_config *vc, struct egavga_font *f)
935 {
936 int slot;
937 struct egavga_font *of;
938
939 if (f->slot != -1)
940 goto toend;
941
942 for (slot = 0; slot < vc->vc_nfontslots; slot++) {
943 if (!vc->vc_fonts[slot])
944 goto loadit;
945 }
946
947 /* have to kick out another one */
948 TAILQ_FOREACH(of, &vc->vc_fontlist, next) {
949 if (of->slot != -1) {
950 KASSERT(vc->vc_fonts[of->slot] == of);
951 slot = of->slot;
952 of->slot = -1;
953 goto loadit;
954 }
955 }
956 panic("vga_usefont");
957
958 loadit:
959 vga_loadchars(&vc->hdl, slot, f->wsfont->firstchar,
960 f->wsfont->numchars, f->wsfont->fontheight, f->wsfont->data);
961 f->slot = slot;
962 vc->vc_fonts[slot] = f;
963
964 toend:
965 TAILQ_REMOVE(&vc->vc_fontlist, f, next);
966 TAILQ_INSERT_TAIL(&vc->vc_fontlist, f, next);
967 }
968
969 static void
970 vga_setfont(struct vga_config *vc, struct vgascreen *scr)
971 {
972 int fontslot1, fontslot2;
973
974 if (scr->fontset1)
975 vga_usefont(vc, scr->fontset1);
976 if (scr->fontset2)
977 vga_usefont(vc, scr->fontset2);
978
979 fontslot1 = (scr->fontset1 ? scr->fontset1->slot : 0);
980 fontslot2 = (scr->fontset2 ? scr->fontset2->slot : fontslot1);
981 if (vc->currentfontset1 != fontslot1 ||
982 vc->currentfontset2 != fontslot2) {
983 vga_setfontset(&vc->hdl, fontslot1, fontslot2);
984 vc->currentfontset1 = fontslot1;
985 vc->currentfontset2 = fontslot2;
986 }
987 }
988
989 int
990 vga_show_screen(void *v, void *cookie, int waitok,
991 void (*cb)(void *, int, int), void *cbarg)
992 {
993 struct vgascreen *scr = cookie, *oldscr;
994 struct vga_config *vc = scr->cfg;
995
996 oldscr = vc->active; /* can be NULL! */
997 if (scr == oldscr) {
998 return (0);
999 }
1000
1001 vc->wantedscreen = cookie;
1002 vc->switchcb = cb;
1003 vc->switchcbarg = cbarg;
1004 if (cb) {
1005 callout_reset(&vc->vc_switch_callout, 0,
1006 (void(*)(void *))vga_doswitch, vc);
1007 return (EAGAIN);
1008 }
1009
1010 vga_doswitch(vc);
1011 return (0);
1012 }
1013
1014 void
1015 vga_doswitch(struct vga_config *vc)
1016 {
1017 struct vgascreen *scr, *oldscr;
1018 struct vga_handle *vh = &vc->hdl;
1019 const struct wsscreen_descr *type;
1020
1021 scr = vc->wantedscreen;
1022 if (!scr) {
1023 printf("vga_doswitch: disappeared\n");
1024 (*vc->switchcb)(vc->switchcbarg, EIO, 0);
1025 return;
1026 }
1027 type = scr->pcs.type;
1028 oldscr = vc->active; /* can be NULL! */
1029 #ifdef DIAGNOSTIC
1030 if (oldscr) {
1031 if (!oldscr->pcs.active)
1032 panic("vga_show_screen: not active");
1033 if (oldscr->pcs.type != vc->currenttype)
1034 panic("vga_show_screen: bad type");
1035 }
1036 #endif
1037 if (scr == oldscr) {
1038 return;
1039 }
1040 #ifdef DIAGNOSTIC
1041 if (scr->pcs.active)
1042 panic("vga_show_screen: active");
1043 #endif
1044
1045 if (oldscr) {
1046 const struct wsscreen_descr *oldtype = oldscr->pcs.type;
1047
1048 oldscr->pcs.active = 0;
1049 bus_space_read_region_2(vh->vh_memt, vh->vh_memh,
1050 oldscr->pcs.dispoffset, oldscr->pcs.mem,
1051 oldtype->ncols * oldtype->nrows);
1052 }
1053
1054 if (vc->currenttype != type) {
1055 vga_setscreentype(vh, type);
1056 vc->currenttype = type;
1057 }
1058
1059 vga_setfont(vc, scr);
1060 /* XXX swich colours! */
1061
1062 scr->pcs.visibleoffset = scr->pcs.dispoffset = scr->mindispoffset;
1063 if (!oldscr || (scr->pcs.dispoffset != oldscr->pcs.dispoffset)) {
1064 vga_6845_write(vh, startadrh, scr->pcs.dispoffset >> 9);
1065 vga_6845_write(vh, startadrl, scr->pcs.dispoffset >> 1);
1066 }
1067
1068 bus_space_write_region_2(vh->vh_memt, vh->vh_memh,
1069 scr->pcs.dispoffset, scr->pcs.mem, type->ncols * type->nrows);
1070 scr->pcs.active = 1;
1071
1072 vc->active = scr;
1073
1074 pcdisplay_cursor(&scr->pcs, scr->pcs.cursoron,
1075 scr->pcs.cursorrow, scr->pcs.cursorcol);
1076
1077 vc->wantedscreen = 0;
1078 if (vc->switchcb)
1079 (*vc->switchcb)(vc->switchcbarg, 0, 0);
1080 }
1081
1082 static int
1083 vga_load_font(void *v, void *cookie, struct wsdisplay_font *data)
1084 {
1085 struct vga_config *vc = v;
1086 struct vgascreen *scr = cookie;
1087 char *name2;
1088 int res;
1089
1090 if (scr) {
1091 name2 = NULL;
1092 if (data->name) {
1093 name2 = strchr(data->name, ',');
1094 if (name2)
1095 *name2++ = '\0';
1096 }
1097 res = vga_selectfont(vc, scr, data->name, name2);
1098 if (!res && scr->pcs.active)
1099 vga_setfont(vc, scr);
1100 return (res);
1101 }
1102
1103 return (0);
1104 }
1105
1106 static int
1107 vga_allocattr(void *id, int fg, int bg, int flags, long *attrp)
1108 {
1109 struct vgascreen *scr = id;
1110 struct vga_config *vc = scr->cfg;
1111
1112 if (__predict_false((unsigned int)fg >= sizeof(fgansitopc) ||
1113 (unsigned int)bg >= sizeof(bgansitopc)))
1114 return (EINVAL);
1115
1116 if (vc->hdl.vh_mono) {
1117 if (flags & WSATTR_WSCOLORS)
1118 return (EINVAL);
1119 if (flags & WSATTR_REVERSE)
1120 *attrp = 0x70;
1121 else
1122 *attrp = 0x07;
1123 if (flags & WSATTR_UNDERLINE)
1124 *attrp |= FG_UNDERLINE;
1125 if (flags & WSATTR_HILIT)
1126 *attrp |= FG_INTENSE;
1127 } else {
1128 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE))
1129 return (EINVAL);
1130 if (flags & WSATTR_WSCOLORS)
1131 *attrp = fgansitopc[fg] | bgansitopc[bg];
1132 else
1133 *attrp = 7;
1134 if (flags & WSATTR_HILIT)
1135 *attrp += 8;
1136 }
1137 if (flags & WSATTR_BLINK)
1138 *attrp |= FG_BLINK;
1139 return (0);
1140 }
1141
1142 static void
1143 vga_copyrows(void *id, int srcrow, int dstrow, int nrows)
1144 {
1145 struct vgascreen *scr = id;
1146 bus_space_tag_t memt = scr->pcs.hdl->ph_memt;
1147 bus_space_handle_t memh = scr->pcs.hdl->ph_memh;
1148 int ncols = scr->pcs.type->ncols;
1149 bus_size_t srcoff, dstoff;
1150
1151 srcoff = srcrow * ncols + 0;
1152 dstoff = dstrow * ncols + 0;
1153
1154 if (scr->pcs.active) {
1155 if (dstrow == 0 && (srcrow + nrows == scr->pcs.type->nrows)) {
1156 #ifdef PCDISPLAY_SOFTCURSOR
1157 int cursoron = scr->pcs.cursoron;
1158
1159 if (cursoron)
1160 pcdisplay_cursor(&scr->pcs, 0,
1161 scr->pcs.cursorrow, scr->pcs.cursorcol);
1162 #endif
1163 /* scroll up whole screen */
1164 if ((scr->pcs.dispoffset + srcrow * ncols * 2)
1165 <= scr->maxdispoffset) {
1166 scr->pcs.dispoffset += srcrow * ncols * 2;
1167 } else {
1168 bus_space_copy_region_2(memt, memh,
1169 scr->pcs.dispoffset + srcoff * 2,
1170 memh, scr->mindispoffset, nrows * ncols);
1171 scr->pcs.dispoffset = scr->mindispoffset;
1172 }
1173 vga_6845_write(&scr->cfg->hdl, startadrh,
1174 scr->pcs.dispoffset >> 9);
1175 vga_6845_write(&scr->cfg->hdl, startadrl,
1176 scr->pcs.dispoffset >> 1);
1177 #ifdef PCDISPLAY_SOFTCURSOR
1178 if (cursoron)
1179 pcdisplay_cursor(&scr->pcs, 1,
1180 scr->pcs.cursorrow, scr->pcs.cursorcol);
1181 #endif
1182 } else {
1183 bus_space_copy_region_2(memt, memh,
1184 scr->pcs.dispoffset + srcoff * 2,
1185 memh, scr->pcs.dispoffset + dstoff * 2,
1186 nrows * ncols);
1187 }
1188 } else
1189 memcpy(&scr->pcs.mem[dstoff], &scr->pcs.mem[srcoff],
1190 nrows * ncols * 2);
1191 }
1192
1193 #ifdef WSCONS_SUPPORT_PCVTFONTS
1194
1195 #define NOTYET 0xffff
1196 static const u_int16_t pcvt_unichars[0xa0] = {
1197 /* 0 */ _e006U, /* N/L control */
1198 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
1199 NOTYET,
1200 0x2409, /* SYMBOL FOR HORIZONTAL TABULATION */
1201 0x240a, /* SYMBOL FOR LINE FEED */
1202 0x240b, /* SYMBOL FOR VERTICAL TABULATION */
1203 0x240c, /* SYMBOL FOR FORM FEED */
1204 0x240d, /* SYMBOL FOR CARRIAGE RETURN */
1205 NOTYET, NOTYET,
1206 /* 1 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
1207 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
1208 /* 2 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
1209 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
1210 /* 3 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
1211 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
1212 /* 4 */ 0x03c1, /* GREEK SMALL LETTER RHO */
1213 0x03c8, /* GREEK SMALL LETTER PSI */
1214 0x2202, /* PARTIAL DIFFERENTIAL */
1215 0x03bb, /* GREEK SMALL LETTER LAMDA */
1216 0x03b9, /* GREEK SMALL LETTER IOTA */
1217 0x03b7, /* GREEK SMALL LETTER ETA */
1218 0x03b5, /* GREEK SMALL LETTER EPSILON */
1219 0x03c7, /* GREEK SMALL LETTER CHI */
1220 0x2228, /* LOGICAL OR */
1221 0x2227, /* LOGICAL AND */
1222 0x222a, /* UNION */
1223 0x2283, /* SUPERSET OF */
1224 0x2282, /* SUBSET OF */
1225 0x03a5, /* GREEK CAPITAL LETTER UPSILON */
1226 0x039e, /* GREEK CAPITAL LETTER XI */
1227 0x03a8, /* GREEK CAPITAL LETTER PSI */
1228 /* 5 */ 0x03a0, /* GREEK CAPITAL LETTER PI */
1229 0x21d2, /* RIGHTWARDS DOUBLE ARROW */
1230 0x21d4, /* LEFT RIGHT DOUBLE ARROW */
1231 0x039b, /* GREEK CAPITAL LETTER LAMDA */
1232 0x0398, /* GREEK CAPITAL LETTER THETA */
1233 0x2243, /* ASYMPTOTICALLY EQUAL TO */
1234 0x2207, /* NABLA */
1235 0x2206, /* INCREMENT */
1236 0x221d, /* PROPORTIONAL TO */
1237 0x2234, /* THEREFORE */
1238 0x222b, /* INTEGRAL */
1239 0x2215, /* DIVISION SLASH */
1240 0x2216, /* SET MINUS */
1241 _e00eU, /* angle? */
1242 _e00dU, /* inverted angle? */
1243 _e00bU, /* braceleftmid */
1244 /* 6 */ _e00cU, /* bracerightmid */
1245 _e007U, /* bracelefttp */
1246 _e008U, /* braceleftbt */
1247 _e009U, /* bracerighttp */
1248 _e00aU, /* bracerightbt */
1249 0x221a, /* SQUARE ROOT */
1250 0x03c9, /* GREEK SMALL LETTER OMEGA */
1251 0x00a5, /* YEN SIGN */
1252 0x03be, /* GREEK SMALL LETTER XI */
1253 0x00fd, /* LATIN SMALL LETTER Y WITH ACUTE */
1254 0x00fe, /* LATIN SMALL LETTER THORN */
1255 0x00f0, /* LATIN SMALL LETTER ETH */
1256 0x00de, /* LATIN CAPITAL LETTER THORN */
1257 0x00dd, /* LATIN CAPITAL LETTER Y WITH ACUTE */
1258 0x00d7, /* MULTIPLICATION SIGN */
1259 0x00d0, /* LATIN CAPITAL LETTER ETH */
1260 /* 7 */ 0x00be, /* VULGAR FRACTION THREE QUARTERS */
1261 0x00b8, /* CEDILLA */
1262 0x00b4, /* ACUTE ACCENT */
1263 0x00af, /* MACRON */
1264 0x00ae, /* REGISTERED SIGN */
1265 0x00ad, /* SOFT HYPHEN */
1266 0x00ac, /* NOT SIGN */
1267 0x00a8, /* DIAERESIS */
1268 0x2260, /* NOT EQUAL TO */
1269 _e005U, /* scan 9 */
1270 _e004U, /* scan 7 */
1271 _e003U, /* scan 5 */
1272 _e002U, /* scan 3 */
1273 _e001U, /* scan 1 */
1274 0x03c5, /* GREEK SMALL LETTER UPSILON */
1275 0x00f8, /* LATIN SMALL LETTER O WITH STROKE */
1276 /* 8 */ 0x0153, /* LATIN SMALL LIGATURE OE */
1277 0x00f5, /* LATIN SMALL LETTER O WITH TILDE !!!doc bug */
1278 0x00e3, /* LATIN SMALL LETTER A WITH TILDE */
1279 0x0178, /* LATIN CAPITAL LETTER Y WITH DIAERESIS */
1280 0x00db, /* LATIN CAPITAL LETTER U WITH CIRCUMFLEX */
1281 0x00da, /* LATIN CAPITAL LETTER U WITH ACUTE */
1282 0x00d9, /* LATIN CAPITAL LETTER U WITH GRAVE */
1283 0x00d8, /* LATIN CAPITAL LETTER O WITH STROKE */
1284 0x0152, /* LATIN CAPITAL LIGATURE OE */
1285 0x00d5, /* LATIN CAPITAL LETTER O WITH TILDE */
1286 0x00d4, /* LATIN CAPITAL LETTER O WITH CIRCUMFLEX */
1287 0x00d3, /* LATIN CAPITAL LETTER O WITH ACUTE */
1288 0x00d2, /* LATIN CAPITAL LETTER O WITH GRAVE */
1289 0x00cf, /* LATIN CAPITAL LETTER I WITH DIAERESIS */
1290 0x00ce, /* LATIN CAPITAL LETTER I WITH CIRCUMFLEX */
1291 0x00cd, /* LATIN CAPITAL LETTER I WITH ACUTE */
1292 /* 9 */ 0x00cc, /* LATIN CAPITAL LETTER I WITH GRAVE */
1293 0x00cb, /* LATIN CAPITAL LETTER E WITH DIAERESIS */
1294 0x00ca, /* LATIN CAPITAL LETTER E WITH CIRCUMFLEX */
1295 0x00c8, /* LATIN CAPITAL LETTER E WITH GRAVE */
1296 0x00c3, /* LATIN CAPITAL LETTER A WITH TILDE */
1297 0x00c2, /* LATIN CAPITAL LETTER A WITH CIRCUMFLEX */
1298 0x00c1, /* LATIN CAPITAL LETTER A WITH ACUTE */
1299 0x00c0, /* LATIN CAPITAL LETTER A WITH GRAVE */
1300 0x00b9, /* SUPERSCRIPT ONE */
1301 0x00b7, /* MIDDLE DOT */
1302 0x03b6, /* GREEK SMALL LETTER ZETA */
1303 0x00b3, /* SUPERSCRIPT THREE */
1304 0x00a9, /* COPYRIGHT SIGN */
1305 0x00a4, /* CURRENCY SIGN */
1306 0x03ba, /* GREEK SMALL LETTER KAPPA */
1307 _e000U /* mirrored question mark? */
1308 };
1309
1310 static int vga_pcvt_mapchar(int, u_int *);
1311
1312 static int
1313 vga_pcvt_mapchar(int uni, u_int *index)
1314 {
1315 int i;
1316
1317 for (i = 0; i < 0xa0; i++) /* 0xa0..0xff are reserved */
1318 if (uni == pcvt_unichars[i]) {
1319 *index = i;
1320 return (5);
1321 }
1322 *index = 0x99; /* middle dot */
1323 return (0);
1324 }
1325
1326 #endif /* WSCONS_SUPPORT_PCVTFONTS */
1327
1328 #ifdef WSCONS_SUPPORT_ISO7FONTS
1329
1330 static int
1331 vga_iso7_mapchar(int uni, u_int *index)
1332 {
1333
1334 /*
1335 * U+0384 (GREEK TONOS) to
1336 * U+03ce (GREEK SMALL LETTER OMEGA WITH TONOS)
1337 * map directly to the iso-9 font
1338 */
1339 if (uni >= 0x0384 && uni <= 0x03ce) {
1340 /* U+0384 is at offset 0xb4 in the font */
1341 *index = uni - 0x0384 + 0xb4;
1342 return (5);
1343 }
1344
1345 /* XXX more chars in the iso-9 font */
1346
1347 *index = 0xa4; /* shaded rectangle */
1348 return (0);
1349 }
1350
1351 #endif /* WSCONS_SUPPORT_ISO7FONTS */
1352
1353 static int _vga_mapchar(void *, const struct egavga_font *, int, u_int *);
1354
1355 static int
1356 _vga_mapchar(void *id, const struct egavga_font *font, int uni, u_int *index)
1357 {
1358
1359 switch (font->wsfont->encoding) {
1360 case WSDISPLAY_FONTENC_ISO:
1361 if (uni < 256) {
1362 *index = uni;
1363 return (5);
1364 } else {
1365 *index = ' ';
1366 return (0);
1367 }
1368 case WSDISPLAY_FONTENC_IBM:
1369 return (pcdisplay_mapchar(id, uni, index));
1370 #ifdef WSCONS_SUPPORT_PCVTFONTS
1371 case WSDISPLAY_FONTENC_PCVT:
1372 return (vga_pcvt_mapchar(uni, index));
1373 #endif
1374 #ifdef WSCONS_SUPPORT_ISO7FONTS
1375 case WSDISPLAY_FONTENC_ISO7:
1376 return (vga_iso7_mapchar(uni, index));
1377 #endif
1378 default:
1379 #ifdef VGAFONTDEBUG
1380 printf("_vga_mapchar: encoding=%d\n", font->wsfont->encoding);
1381 #endif
1382 *index = ' ';
1383 return (0);
1384 }
1385 }
1386
1387 static int
1388 vga_mapchar(void *id, int uni, u_int *index)
1389 {
1390 struct vgascreen *scr = id;
1391 u_int idx1, idx2;
1392 int res1, res2;
1393
1394 res1 = 0;
1395 idx1 = ' '; /* space */
1396 if (scr->fontset1)
1397 res1 = _vga_mapchar(id, scr->fontset1, uni, &idx1);
1398 res2 = -1;
1399 if (scr->fontset2) {
1400 KASSERT(VGA_SCREEN_CANTWOFONTS(scr->pcs.type));
1401 res2 = _vga_mapchar(id, scr->fontset2, uni, &idx2);
1402 }
1403 if (res2 > res1) {
1404 *index = idx2 | 0x0800; /* attribute bit 3 */
1405 return (res2);
1406 }
1407 *index = idx1;
1408 return (res1);
1409 }
1410
1411 #ifdef WSDISPLAY_SCROLLSUPPORT
1412 void
1413 vga_scroll(void *v, void *cookie, int lines)
1414 {
1415 struct vga_config *vc = v;
1416 struct vgascreen *scr = cookie;
1417 struct vga_handle *vh = &vc->hdl;
1418
1419 if (lines == 0) {
1420 if (scr->pcs.visibleoffset == scr->pcs.dispoffset)
1421 return;
1422
1423 scr->pcs.visibleoffset = scr->pcs.dispoffset;
1424 }
1425 else {
1426 int vga_scr_end;
1427 int margin = scr->pcs.type->ncols * 2;
1428 int ul, we, p, st;
1429
1430 vga_scr_end = (scr->pcs.dispoffset + scr->pcs.type->ncols *
1431 scr->pcs.type->nrows * 2);
1432 if (scr->vga_rollover > vga_scr_end + margin) {
1433 ul = vga_scr_end;
1434 we = scr->vga_rollover + scr->pcs.type->ncols * 2;
1435 } else {
1436 ul = 0;
1437 we = 0x8000;
1438 }
1439 p = (scr->pcs.visibleoffset - ul + we) % we + lines *
1440 (scr->pcs.type->ncols * 2);
1441 st = (scr->pcs.dispoffset - ul + we) % we;
1442 if (p < margin)
1443 p = 0;
1444 if (p > st - margin)
1445 p = st;
1446 scr->pcs.visibleoffset = (p + ul) % we;
1447 }
1448
1449 vga_6845_write(vh, startadrh, scr->pcs.visibleoffset >> 9);
1450 vga_6845_write(vh, startadrl, scr->pcs.visibleoffset >> 1);
1451 }
1452 #endif
1453
1454 void
1455 vga_putchar(void *c, int row, int col, u_int uc, long attr)
1456 {
1457
1458 pcdisplay_putchar(c, row, col, uc, attr);
1459 }
1460
1461 #ifdef WSDISPLAY_CUSTOM_BORDER
1462 static int
1463 vga_getborder(struct vga_config *vc, u_int *valuep)
1464 {
1465 struct vga_handle *vh = &vc->hdl;
1466 u_int idx;
1467 u_int8_t value;
1468
1469 if (vh->vh_mono)
1470 return ENODEV;
1471
1472 value = _vga_attr_read(vh, VGA_ATC_OVERSCAN);
1473 for (idx = 0; idx < sizeof(fgansitopc); idx++) {
1474 if (fgansitopc[idx] == value) {
1475 *valuep = idx;
1476 return (0);
1477 }
1478 }
1479 return (EIO);
1480 }
1481
1482 static int
1483 vga_setborder(struct vga_config *vc, u_int value)
1484 {
1485 struct vga_handle *vh = &vc->hdl;
1486
1487 if (vh->vh_mono)
1488 return ENODEV;
1489 if (value >= sizeof(fgansitopc))
1490 return EINVAL;
1491
1492 _vga_attr_write(vh, VGA_ATC_OVERSCAN, fgansitopc[value]);
1493 return (0);
1494 }
1495 #endif /* WSDISPLAY_CUSTOM_BORDER */
1496
1497 void
1498 vga_resume(struct vga_softc *sc)
1499 {
1500 #ifdef VGA_RESET_ON_RESUME
1501 vga_initregs(&sc->sc_vc->hdl);
1502 #endif
1503 }
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