1 /* $NetBSD: vga.c,v 1.64 2002/10/15 17:30:43 junyoung 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 1.64 2002/10/15 17:30:43 junyoung Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/callout.h> 36 #include <sys/kernel.h> 37 #include <sys/device.h> 38 #include <sys/malloc.h> 39 #include <sys/queue.h> 40 #include <machine/bus.h> 41 42 #include <dev/ic/mc6845reg.h> 43 #include <dev/ic/pcdisplayvar.h> 44 #include <dev/ic/vgareg.h> 45 #include <dev/ic/vgavar.h> 46 47 #include <dev/wscons/wsdisplayvar.h> 48 #include <dev/wscons/wsconsio.h> 49 #include <dev/wscons/unicode.h> 50 #include <dev/wsfont/wsfont.h> 51 52 #include <dev/ic/pcdisplay.h> 53 54 /* for WSCONS_SUPPORT_PCVTFONTS and WSDISPLAY_CHARFUNCS */ 55 #include "opt_wsdisplay_compat.h" 56 57 static struct wsdisplay_font _vga_builtinfont = { 58 "builtin", 59 0, 256, 60 WSDISPLAY_FONTENC_IBM, 61 8, 16, 1, 62 WSDISPLAY_FONTORDER_L2R, 0, 63 0 64 }; 65 66 struct egavga_font { 67 struct wsdisplay_font *wsfont; 68 int cookie; /* wsfont handle, -1 invalid */ 69 int slot; /* in adapter RAM */ 70 int usecount; 71 TAILQ_ENTRY(egavga_font) next; /* LRU queue */ 72 }; 73 74 static struct egavga_font vga_builtinfont = { 75 &_vga_builtinfont, 76 -1, 0 77 }; 78 79 #ifdef VGA_CONSOLE_SCREENTYPE 80 static struct egavga_font vga_consolefont; 81 #endif 82 83 struct vgascreen { 84 struct pcdisplayscreen pcs; 85 86 LIST_ENTRY(vgascreen) next; 87 88 struct vga_config *cfg; 89 90 /* videostate */ 91 struct egavga_font *fontset1, *fontset2; 92 /* font data */ 93 /* palette */ 94 95 int mindispoffset, maxdispoffset; 96 }; 97 98 static int vgaconsole, vga_console_type, vga_console_attached; 99 static struct vgascreen vga_console_screen; 100 static struct vga_config vga_console_vc; 101 102 struct egavga_font *egavga_getfont(struct vga_config *, struct vgascreen *, 103 char *, int); 104 void egavga_unreffont(struct vga_config *, struct egavga_font *); 105 106 int vga_selectfont(struct vga_config *, struct vgascreen *, char *, char *); 107 void vga_init_screen(struct vga_config *, struct vgascreen *, 108 const struct wsscreen_descr *, int, long *); 109 void vga_init(struct vga_config *, bus_space_tag_t, bus_space_tag_t); 110 static void vga_setfont(struct vga_config *, struct vgascreen *); 111 112 static int vga_mapchar(void *, int, unsigned int *); 113 static int vga_allocattr(void *, int, int, int, long *); 114 static void vga_copyrows(void *, int, int, int); 115 116 const struct wsdisplay_emulops vga_emulops = { 117 pcdisplay_cursor, 118 vga_mapchar, 119 pcdisplay_putchar, 120 pcdisplay_copycols, 121 pcdisplay_erasecols, 122 vga_copyrows, 123 pcdisplay_eraserows, 124 vga_allocattr 125 }; 126 127 /* 128 * translate WS(=ANSI) color codes to standard pc ones 129 */ 130 static const unsigned char fgansitopc[] = { 131 #ifdef __alpha__ 132 /* 133 * XXX DEC HAS SWITCHED THE CODES FOR BLUE AND RED!!! 134 * XXX We should probably not bother with this 135 * XXX (reinitialize the palette registers). 136 */ 137 FG_BLACK, FG_BLUE, FG_GREEN, FG_CYAN, FG_RED, 138 FG_MAGENTA, FG_BROWN, FG_LIGHTGREY 139 #else 140 FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE, 141 FG_MAGENTA, FG_CYAN, FG_LIGHTGREY 142 #endif 143 }, bgansitopc[] = { 144 #ifdef __alpha__ 145 BG_BLACK, BG_BLUE, BG_GREEN, BG_CYAN, BG_RED, 146 BG_MAGENTA, BG_BROWN, BG_LIGHTGREY 147 #else 148 BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE, 149 BG_MAGENTA, BG_CYAN, BG_LIGHTGREY 150 #endif 151 }; 152 153 const struct wsscreen_descr vga_25lscreen = { 154 "80x25", 80, 25, 155 &vga_emulops, 156 8, 16, 157 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK 158 }, vga_25lscreen_mono = { 159 "80x25", 80, 25, 160 &vga_emulops, 161 8, 16, 162 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE 163 }, vga_25lscreen_bf = { 164 "80x25bf", 80, 25, 165 &vga_emulops, 166 8, 16, 167 WSSCREEN_WSCOLORS | WSSCREEN_BLINK 168 }, vga_40lscreen = { 169 "80x40", 80, 40, 170 &vga_emulops, 171 8, 10, 172 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK 173 }, vga_40lscreen_mono = { 174 "80x40", 80, 40, 175 &vga_emulops, 176 8, 10, 177 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE 178 }, vga_40lscreen_bf = { 179 "80x40bf", 80, 40, 180 &vga_emulops, 181 8, 10, 182 WSSCREEN_WSCOLORS | WSSCREEN_BLINK 183 }, vga_50lscreen = { 184 "80x50", 80, 50, 185 &vga_emulops, 186 8, 8, 187 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK 188 }, vga_50lscreen_mono = { 189 "80x50", 80, 50, 190 &vga_emulops, 191 8, 8, 192 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE 193 }, vga_50lscreen_bf = { 194 "80x50bf", 80, 50, 195 &vga_emulops, 196 8, 8, 197 WSSCREEN_WSCOLORS | WSSCREEN_BLINK 198 }, vga_24lscreen = { 199 "80x24", 80, 24, 200 &vga_emulops, 201 8, 16, 202 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK 203 }, vga_24lscreen_mono = { 204 "80x24", 80, 24, 205 &vga_emulops, 206 8, 16, 207 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE 208 }, vga_24lscreen_bf = { 209 "80x24bf", 80, 24, 210 &vga_emulops, 211 8, 16, 212 WSSCREEN_WSCOLORS | WSSCREEN_BLINK 213 }; 214 215 #define VGA_SCREEN_CANTWOFONTS(type) (!((type)->capabilities & WSSCREEN_HILIT)) 216 217 const struct wsscreen_descr *_vga_scrlist[] = { 218 &vga_25lscreen, 219 &vga_25lscreen_bf, 220 &vga_40lscreen, 221 &vga_40lscreen_bf, 222 &vga_50lscreen, 223 &vga_50lscreen_bf, 224 &vga_24lscreen, 225 &vga_24lscreen_bf, 226 /* XXX other formats, graphics screen? */ 227 }, *_vga_scrlist_mono[] = { 228 &vga_25lscreen_mono, 229 &vga_40lscreen_mono, 230 &vga_50lscreen_mono, 231 &vga_24lscreen_mono, 232 /* XXX other formats, graphics screen? */ 233 }; 234 235 const struct wsscreen_list vga_screenlist = { 236 sizeof(_vga_scrlist) / sizeof(struct wsscreen_descr *), 237 _vga_scrlist 238 }, vga_screenlist_mono = { 239 sizeof(_vga_scrlist_mono) / sizeof(struct wsscreen_descr *), 240 _vga_scrlist_mono 241 }; 242 243 static int vga_ioctl(void *, u_long, caddr_t, int, struct proc *); 244 static paddr_t vga_mmap(void *, off_t, int); 245 static int vga_alloc_screen(void *, const struct wsscreen_descr *, 246 void **, int *, int *, long *); 247 static void vga_free_screen(void *, void *); 248 static int vga_show_screen(void *, void *, int, 249 void (*)(void *, int, int), void *); 250 static int vga_load_font(void *, void *, struct wsdisplay_font *); 251 #ifdef WSDISPLAY_CHARFUNCS 252 static int vga_getwschar(void *, struct wsdisplay_char *); 253 static int vga_putwschar(void *, struct wsdisplay_char *); 254 #endif /* WSDISPLAY_CHARFUNCS */ 255 256 void vga_doswitch(struct vga_config *); 257 258 const struct wsdisplay_accessops vga_accessops = { 259 vga_ioctl, 260 vga_mmap, 261 vga_alloc_screen, 262 vga_free_screen, 263 vga_show_screen, 264 vga_load_font, 265 NULL, 266 #ifdef WSDISPLAY_CHARFUNCS 267 vga_getwschar, 268 vga_putwschar 269 #else /* WSDISPLAY_CHARFUNCS */ 270 NULL, 271 NULL 272 #endif /* WSDISPLAY_CHARFUNCS */ 273 }; 274 275 /* 276 * We want at least ASCII 32..127 be present in the 277 * first font slot. 278 */ 279 #define vga_valid_primary_font(f) \ 280 (f->wsfont->encoding == WSDISPLAY_FONTENC_IBM || \ 281 f->wsfont->encoding == WSDISPLAY_FONTENC_ISO || \ 282 f->wsfont->encoding == WSDISPLAY_FONTENC_ISO7) 283 284 struct egavga_font * 285 egavga_getfont(struct vga_config *vc, struct vgascreen *scr, char *name, 286 int primary) 287 { 288 struct egavga_font *f; 289 int cookie; 290 struct wsdisplay_font *wf; 291 292 TAILQ_FOREACH(f, &vc->vc_fontlist, next) { 293 if (wsfont_matches(f->wsfont, name, 294 8, scr->pcs.type->fontheight, 0) && 295 (!primary || vga_valid_primary_font(f))) { 296 #ifdef VGAFONTDEBUG 297 if (scr != &vga_console_screen || vga_console_attached) 298 printf("vga_getfont: %s already present\n", 299 name ? name : "<default>"); 300 #endif 301 goto found; 302 } 303 } 304 305 cookie = wsfont_find(name, 8, scr->pcs.type->fontheight, 0, 306 WSDISPLAY_FONTORDER_L2R, 0); 307 /* XXX obey "primary" */ 308 if (cookie == -1) { 309 #ifdef VGAFONTDEBUG 310 if (scr != &vga_console_screen || vga_console_attached) 311 printf("vga_getfont: %s not found\n", 312 name ? name : "<default>"); 313 #endif 314 return (0); 315 } 316 317 if (wsfont_lock(cookie, &wf)) 318 return (0); 319 320 #ifdef VGA_CONSOLE_SCREENTYPE 321 if (scr == &vga_console_screen) 322 f = &vga_consolefont; 323 else 324 #endif 325 f = malloc(sizeof(struct egavga_font), M_DEVBUF, M_NOWAIT); 326 if (!f) { 327 wsfont_unlock(cookie); 328 return (0); 329 } 330 f->wsfont = wf; 331 f->cookie = cookie; 332 f->slot = -1; /* not yet loaded */ 333 f->usecount = 0; /* incremented below */ 334 TAILQ_INSERT_TAIL(&vc->vc_fontlist, f, next); 335 336 found: 337 f->usecount++; 338 #ifdef VGAFONTDEBUG 339 if (scr != &vga_console_screen || vga_console_attached) 340 printf("vga_getfont: usecount=%d\n", f->usecount); 341 #endif 342 return (f); 343 } 344 345 void 346 egavga_unreffont(struct vga_config *vc, struct egavga_font *f) 347 { 348 349 f->usecount--; 350 #ifdef VGAFONTDEBUG 351 printf("vga_unreffont: usecount=%d\n", f->usecount); 352 #endif 353 if (f->usecount == 0 && f->cookie != -1) { 354 TAILQ_REMOVE(&vc->vc_fontlist, f, next); 355 if (f->slot != -1) { 356 KASSERT(vc->vc_fonts[f->slot] == f); 357 vc->vc_fonts[f->slot] = 0; 358 } 359 wsfont_unlock(f->cookie); 360 #ifdef VGA_CONSOLE_SCREENTYPE 361 if (f != &vga_consolefont) 362 #endif 363 free(f, M_DEVBUF); 364 } 365 } 366 367 int 368 vga_selectfont(struct vga_config *vc, struct vgascreen *scr, char *name1, 369 char *name2) 370 { 371 const struct wsscreen_descr *type = scr->pcs.type; 372 struct egavga_font *f1, *f2; 373 374 f1 = egavga_getfont(vc, scr, name1, 1); 375 if (!f1) 376 return (ENXIO); 377 378 if (VGA_SCREEN_CANTWOFONTS(type) && name2) { 379 f2 = egavga_getfont(vc, scr, name2, 0); 380 if (!f2) { 381 egavga_unreffont(vc, f1); 382 return (ENXIO); 383 } 384 } else 385 f2 = 0; 386 387 #ifdef VGAFONTDEBUG 388 if (scr != &vga_console_screen || vga_console_attached) { 389 printf("vga (%s): font1=%s (slot %d)", type->name, 390 f1->wsfont->name, f1->slot); 391 if (f2) 392 printf(", font2=%s (slot %d)", 393 f2->wsfont->name, f2->slot); 394 printf("\n"); 395 } 396 #endif 397 if (scr->fontset1) 398 egavga_unreffont(vc, scr->fontset1); 399 scr->fontset1 = f1; 400 if (scr->fontset2) 401 egavga_unreffont(vc, scr->fontset2); 402 scr->fontset2 = f2; 403 return (0); 404 } 405 406 void 407 vga_init_screen(struct vga_config *vc, struct vgascreen *scr, 408 const struct wsscreen_descr *type, int existing, long *attrp) 409 { 410 int cpos; 411 int res; 412 413 scr->cfg = vc; 414 scr->pcs.hdl = (struct pcdisplay_handle *)&vc->hdl; 415 scr->pcs.type = type; 416 scr->pcs.active = existing; 417 scr->mindispoffset = 0; 418 if (vc->vc_quirks & VGA_QUIRK_NOFASTSCROLL) 419 scr->maxdispoffset = 0; 420 else 421 scr->maxdispoffset = 0x8000 - type->nrows * type->ncols * 2; 422 423 if (existing) { 424 vc->active = scr; 425 426 cpos = vga_6845_read(&vc->hdl, cursorh) << 8; 427 cpos |= vga_6845_read(&vc->hdl, cursorl); 428 429 /* make sure we have a valid cursor position */ 430 if (cpos < 0 || cpos >= type->nrows * type->ncols) 431 cpos = 0; 432 433 scr->pcs.dispoffset = vga_6845_read(&vc->hdl, startadrh) << 9; 434 scr->pcs.dispoffset |= vga_6845_read(&vc->hdl, startadrl) << 1; 435 436 /* make sure we have a valid memory offset */ 437 if (scr->pcs.dispoffset < scr->mindispoffset || 438 scr->pcs.dispoffset > scr->maxdispoffset) 439 scr->pcs.dispoffset = scr->mindispoffset; 440 441 if (type != vc->currenttype) { 442 vga_setscreentype(&vc->hdl, type); 443 vc->currenttype = type; 444 } 445 } else { 446 cpos = 0; 447 scr->pcs.dispoffset = scr->mindispoffset; 448 } 449 450 scr->pcs.cursorrow = cpos / type->ncols; 451 scr->pcs.cursorcol = cpos % type->ncols; 452 pcdisplay_cursor_init(&scr->pcs, existing); 453 454 #ifdef __alpha__ 455 if (!vc->hdl.vh_mono) 456 /* 457 * DEC firmware uses a blue background. 458 */ 459 res = vga_allocattr(scr, WSCOL_WHITE, WSCOL_BLUE, 460 WSATTR_WSCOLORS, attrp); 461 else 462 #endif 463 res = vga_allocattr(scr, 0, 0, 0, attrp); 464 #ifdef DIAGNOSTIC 465 if (res) 466 panic("vga_init_screen: attribute botch"); 467 #endif 468 469 scr->pcs.mem = NULL; 470 471 wsfont_init(); 472 scr->fontset1 = scr->fontset2 = 0; 473 if (vga_selectfont(vc, scr, 0, 0)) { 474 if (scr == &vga_console_screen) 475 panic("vga_init_screen: no font"); 476 else 477 printf("vga_init_screen: no font\n"); 478 } 479 if (existing) 480 vga_setfont(vc, scr); 481 482 vc->nscreens++; 483 LIST_INSERT_HEAD(&vc->screens, scr, next); 484 } 485 486 void 487 vga_init(struct vga_config *vc, bus_space_tag_t iot, bus_space_tag_t memt) 488 { 489 struct vga_handle *vh = &vc->hdl; 490 u_int8_t mor; 491 int i; 492 493 vh->vh_iot = iot; 494 vh->vh_memt = memt; 495 496 if (bus_space_map(vh->vh_iot, 0x3c0, 0x10, 0, &vh->vh_ioh_vga)) 497 panic("vga_init: couldn't map vga io"); 498 499 /* read "misc output register" */ 500 mor = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, 0xc); 501 vh->vh_mono = !(mor & 1); 502 503 if (bus_space_map(vh->vh_iot, (vh->vh_mono ? 0x3b0 : 0x3d0), 0x10, 0, 504 &vh->vh_ioh_6845)) 505 panic("vga_init: couldn't map 6845 io"); 506 507 if (bus_space_map(vh->vh_memt, 0xa0000, 0x20000, 0, &vh->vh_allmemh)) 508 panic("vga_init: couldn't map memory"); 509 510 if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh, 511 (vh->vh_mono ? 0x10000 : 0x18000), 0x8000, 512 &vh->vh_memh)) 513 panic("vga_init: mem subrange failed"); 514 515 /* should only reserve the space (no need to map - save KVM) */ 516 vc->vc_biostag = memt; 517 if (bus_space_map(vc->vc_biostag, 0xc0000, 0x8000, 0, 518 &vc->vc_bioshdl)) 519 vc->vc_biosmapped = 0; 520 else 521 vc->vc_biosmapped = 1; 522 523 vc->nscreens = 0; 524 LIST_INIT(&vc->screens); 525 vc->active = NULL; 526 vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen; 527 callout_init(&vc->vc_switch_callout); 528 529 vc->vc_fonts[0] = &vga_builtinfont; 530 for (i = 1; i < 8; i++) 531 vc->vc_fonts[i] = 0; 532 TAILQ_INIT(&vc->vc_fontlist); 533 TAILQ_INSERT_HEAD(&vc->vc_fontlist, &vga_builtinfont, next); 534 535 vc->currentfontset1 = vc->currentfontset2 = 0; 536 } 537 538 void 539 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, 540 bus_space_tag_t memt, int type, int quirks, 541 const struct vga_funcs *vf) 542 { 543 int console; 544 struct vga_config *vc; 545 struct wsemuldisplaydev_attach_args aa; 546 547 console = vga_is_console(iot, type); 548 549 if (console) { 550 vc = &vga_console_vc; 551 vga_console_attached = 1; 552 } else { 553 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK); 554 vga_init(vc, iot, memt); 555 } 556 557 if (quirks & VGA_QUIRK_ONEFONT) { 558 vc->vc_nfontslots = 1; 559 #ifndef VGA_CONSOLE_ATI_BROKEN_FONTSEL 560 /* 561 * XXX maybe invalidate font in slot > 0, but this can 562 * only be happen with VGA_CONSOLE_SCREENTYPE, and then 563 * we require VGA_CONSOLE_ATI_BROKEN_FONTSEL anyway. 564 */ 565 #endif 566 } else { 567 vc->vc_nfontslots = 8; 568 #ifndef VGA_CONSOLE_ATI_BROKEN_FONTSEL 569 /* 570 * XXX maybe validate builtin font shifted to slot 1 if 571 * slot 0 got overwritten because of VGA_CONSOLE_SCREENTYPE, 572 * but it will be reloaded anyway if needed. 573 */ 574 #endif 575 } 576 577 /* 578 * Save the builtin font to memory. In case it got overwritten 579 * in console initialization, use the copy in slot 1. 580 */ 581 #ifdef VGA_CONSOLE_ATI_BROKEN_FONTSEL 582 #define BUILTINFONTLOC (vga_builtinfont.slot == -1 ? 1 : 0) 583 #else 584 KASSERT(vga_builtinfont.slot == 0); 585 #define BUILTINFONTLOC (0) 586 #endif 587 vga_builtinfont.wsfont->data = 588 malloc(256 * vga_builtinfont.wsfont->fontheight, 589 M_DEVBUF, M_WAITOK); 590 vga_readoutchars(&vc->hdl, BUILTINFONTLOC, 0, 256, 591 vga_builtinfont.wsfont->fontheight, 592 vga_builtinfont.wsfont->data); 593 594 vc->vc_type = type; 595 vc->vc_funcs = vf; 596 vc->vc_quirks = quirks; 597 598 sc->sc_vc = vc; 599 vc->softc = sc; 600 601 aa.console = console; 602 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); 603 aa.accessops = &vga_accessops; 604 aa.accesscookie = vc; 605 606 config_found(&sc->sc_dev, &aa, wsemuldisplaydevprint); 607 } 608 609 int 610 vga_cnattach(bus_space_tag_t iot, bus_space_tag_t memt, int type, int check) 611 { 612 long defattr; 613 const struct wsscreen_descr *scr; 614 615 if (check && !vga_common_probe(iot, memt)) 616 return (ENXIO); 617 618 /* set up bus-independent VGA configuration */ 619 vga_init(&vga_console_vc, iot, memt); 620 #ifdef VGA_CONSOLE_SCREENTYPE 621 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 622 &vga_screenlist_mono : &vga_screenlist, VGA_CONSOLE_SCREENTYPE); 623 if (!scr) 624 panic("vga_cnattach: invalid screen type"); 625 #else 626 scr = vga_console_vc.currenttype; 627 #endif 628 #ifdef VGA_CONSOLE_ATI_BROKEN_FONTSEL 629 /* 630 * On some (most/all?) ATI cards, only font slot 0 is usable. 631 * vga_init_screen() might need font slot 0 for a non-default 632 * console font, so save the builtin VGA font to another font slot. 633 * The attach() code will take care later. 634 */ 635 vga_console_vc.vc_quirks |= VGA_QUIRK_ONEFONT; /* redundant */ 636 vga_copyfont01(&vga_console_vc.hdl); 637 vga_console_vc.vc_nfontslots = 1; 638 #else 639 vga_console_vc.vc_nfontslots = 8; 640 #endif 641 /* until we know better, assume "fast scrolling" does not work */ 642 vga_console_vc.vc_quirks |= VGA_QUIRK_NOFASTSCROLL; 643 644 vga_init_screen(&vga_console_vc, &vga_console_screen, scr, 1, &defattr); 645 646 wsdisplay_cnattach(scr, &vga_console_screen, 647 vga_console_screen.pcs.cursorcol, 648 vga_console_screen.pcs.cursorrow, 649 defattr); 650 651 vgaconsole = 1; 652 vga_console_type = type; 653 return (0); 654 } 655 656 int 657 vga_is_console(bus_space_tag_t iot, int type) 658 { 659 if (vgaconsole && 660 !vga_console_attached && 661 iot == vga_console_vc.hdl.vh_iot && 662 (vga_console_type == -1 || (type == vga_console_type))) 663 return (1); 664 return (0); 665 } 666 667 #define VGA_TS_BLANK 0x20 668 669 static int 670 vga_get_video(struct vga_config *vc) 671 { 672 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_BLANK) == 0; 673 } 674 675 static void 676 vga_set_video(struct vga_config *vc, int state) 677 { 678 int val; 679 680 vga_ts_write(&vc->hdl, syncreset, 0x01); 681 if (state) { /* unblank screen */ 682 val = vga_ts_read(&vc->hdl, mode); 683 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_BLANK); 684 #ifndef VGA_NO_VBLANK 685 val = vga_6845_read(&vc->hdl, mode); 686 vga_6845_write(&vc->hdl, mode, val | 0x80); 687 #endif 688 } else { /* blank screen */ 689 val = vga_ts_read(&vc->hdl, mode); 690 vga_ts_write(&vc->hdl, mode, val | VGA_TS_BLANK); 691 #ifndef VGA_NO_VBLANK 692 val = vga_6845_read(&vc->hdl, mode); 693 vga_6845_write(&vc->hdl, mode, val & ~0x80); 694 #endif 695 } 696 vga_ts_write(&vc->hdl, syncreset, 0x03); 697 } 698 699 int 700 vga_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p) 701 { 702 struct vga_config *vc = v; 703 const struct vga_funcs *vf = vc->vc_funcs; 704 705 switch (cmd) { 706 case WSDISPLAYIO_GTYPE: 707 *(int *)data = vc->vc_type; 708 return 0; 709 710 case WSDISPLAYIO_GINFO: 711 /* XXX should get detailed hardware information here */ 712 return EPASSTHROUGH; 713 714 case WSDISPLAYIO_GVIDEO: 715 *(int *)data = (vga_get_video(vc) ? WSDISPLAYIO_VIDEO_ON : 716 WSDISPLAYIO_VIDEO_OFF); 717 return 0; 718 719 case WSDISPLAYIO_SVIDEO: 720 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 721 return 0; 722 723 case WSDISPLAYIO_GETCMAP: 724 case WSDISPLAYIO_PUTCMAP: 725 case WSDISPLAYIO_GCURPOS: 726 case WSDISPLAYIO_SCURPOS: 727 case WSDISPLAYIO_GCURMAX: 728 case WSDISPLAYIO_GCURSOR: 729 case WSDISPLAYIO_SCURSOR: 730 /* NONE of these operations are by the generic VGA driver. */ 731 return EPASSTHROUGH; 732 } 733 734 if (vc->vc_funcs == NULL) 735 return (EPASSTHROUGH); 736 737 if (vf->vf_ioctl == NULL) 738 return (EPASSTHROUGH); 739 740 return ((*vf->vf_ioctl)(v, cmd, data, flag, p)); 741 } 742 743 static paddr_t 744 vga_mmap(void *v, off_t offset, int prot) 745 { 746 struct vga_config *vc = v; 747 const struct vga_funcs *vf = vc->vc_funcs; 748 749 if (vc->vc_funcs == NULL) 750 return (-1); 751 752 if (vf->vf_mmap == NULL) 753 return (-1); 754 755 return ((*vf->vf_mmap)(v, offset, prot)); 756 } 757 758 int 759 vga_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep, 760 int *curxp, int *curyp, long *defattrp) 761 { 762 struct vga_config *vc = v; 763 struct vgascreen *scr; 764 765 if (vc->nscreens == 1) { 766 struct vgascreen *scr1 = vc->screens.lh_first; 767 /* 768 * When allocating the second screen, get backing store 769 * for the first one too. 770 * XXX We could be more clever and use video RAM. 771 */ 772 scr1->pcs.mem = 773 malloc(scr1->pcs.type->ncols * scr1->pcs.type->nrows * 2, 774 M_DEVBUF, M_WAITOK); 775 } 776 777 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 778 vga_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 779 780 if (vc->nscreens > 1) { 781 scr->pcs.mem = malloc(type->ncols * type->nrows * 2, 782 M_DEVBUF, M_WAITOK); 783 pcdisplay_eraserows(&scr->pcs, 0, type->nrows, *defattrp); 784 } 785 786 *cookiep = scr; 787 *curxp = scr->pcs.cursorcol; 788 *curyp = scr->pcs.cursorrow; 789 790 return (0); 791 } 792 793 void 794 vga_free_screen(void *v, void *cookie) 795 { 796 struct vgascreen *vs = cookie; 797 struct vga_config *vc = vs->cfg; 798 799 LIST_REMOVE(vs, next); 800 if (vs->fontset1) 801 egavga_unreffont(vc, vs->fontset1); 802 if (vs->fontset2) 803 egavga_unreffont(vc, vs->fontset2); 804 805 if (vs != &vga_console_screen) 806 free(vs, M_DEVBUF); 807 else 808 panic("vga_free_screen: console"); 809 810 if (vc->active == vs) 811 vc->active = 0; 812 } 813 814 static void vga_usefont(struct vga_config *, struct egavga_font *); 815 816 static void 817 vga_usefont(struct vga_config *vc, struct egavga_font *f) 818 { 819 int slot; 820 struct egavga_font *of; 821 822 if (f->slot != -1) 823 goto toend; 824 825 for (slot = 0; slot < vc->vc_nfontslots; slot++) { 826 if (!vc->vc_fonts[slot]) 827 goto loadit; 828 } 829 830 /* have to kick out another one */ 831 TAILQ_FOREACH(of, &vc->vc_fontlist, next) { 832 if (of->slot != -1) { 833 KASSERT(vc->vc_fonts[of->slot] == of); 834 slot = of->slot; 835 of->slot = -1; 836 goto loadit; 837 } 838 } 839 panic("vga_usefont"); 840 841 loadit: 842 vga_loadchars(&vc->hdl, slot, f->wsfont->firstchar, 843 f->wsfont->numchars, f->wsfont->fontheight, 844 f->wsfont->data); 845 f->slot = slot; 846 vc->vc_fonts[slot] = f; 847 848 toend: 849 TAILQ_REMOVE(&vc->vc_fontlist, f, next); 850 TAILQ_INSERT_TAIL(&vc->vc_fontlist, f, next); 851 } 852 853 static void 854 vga_setfont(struct vga_config *vc, struct vgascreen *scr) 855 { 856 int fontslot1, fontslot2; 857 858 if (scr->fontset1) 859 vga_usefont(vc, scr->fontset1); 860 if (scr->fontset2) 861 vga_usefont(vc, scr->fontset2); 862 863 fontslot1 = (scr->fontset1 ? scr->fontset1->slot : 0); 864 fontslot2 = (scr->fontset2 ? scr->fontset2->slot : fontslot1); 865 if (vc->currentfontset1 != fontslot1 || 866 vc->currentfontset2 != fontslot2) { 867 vga_setfontset(&vc->hdl, fontslot1, fontslot2); 868 vc->currentfontset1 = fontslot1; 869 vc->currentfontset2 = fontslot2; 870 } 871 } 872 873 int 874 vga_show_screen(void *v, void *cookie, int waitok, 875 void (*cb)(void *, int, int), void *cbarg) 876 { 877 struct vgascreen *scr = cookie, *oldscr; 878 struct vga_config *vc = scr->cfg; 879 880 oldscr = vc->active; /* can be NULL! */ 881 if (scr == oldscr) { 882 return (0); 883 } 884 885 vc->wantedscreen = cookie; 886 vc->switchcb = cb; 887 vc->switchcbarg = cbarg; 888 if (cb) { 889 callout_reset(&vc->vc_switch_callout, 0, 890 (void(*)(void *))vga_doswitch, vc); 891 return (EAGAIN); 892 } 893 894 vga_doswitch(vc); 895 return (0); 896 } 897 898 void 899 vga_doswitch(struct vga_config *vc) 900 { 901 struct vgascreen *scr, *oldscr; 902 struct vga_handle *vh = &vc->hdl; 903 const struct wsscreen_descr *type; 904 905 scr = vc->wantedscreen; 906 if (!scr) { 907 printf("vga_doswitch: disappeared\n"); 908 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 909 return; 910 } 911 type = scr->pcs.type; 912 oldscr = vc->active; /* can be NULL! */ 913 #ifdef DIAGNOSTIC 914 if (oldscr) { 915 if (!oldscr->pcs.active) 916 panic("vga_show_screen: not active"); 917 if (oldscr->pcs.type != vc->currenttype) 918 panic("vga_show_screen: bad type"); 919 } 920 #endif 921 if (scr == oldscr) { 922 return; 923 } 924 #ifdef DIAGNOSTIC 925 if (scr->pcs.active) 926 panic("vga_show_screen: active"); 927 #endif 928 929 if (oldscr) { 930 const struct wsscreen_descr *oldtype = oldscr->pcs.type; 931 932 oldscr->pcs.active = 0; 933 bus_space_read_region_2(vh->vh_memt, vh->vh_memh, 934 oldscr->pcs.dispoffset, oldscr->pcs.mem, 935 oldtype->ncols * oldtype->nrows); 936 } 937 938 if (vc->currenttype != type) { 939 vga_setscreentype(vh, type); 940 vc->currenttype = type; 941 } 942 943 vga_setfont(vc, scr); 944 /* XXX swich colours! */ 945 946 scr->pcs.dispoffset = scr->mindispoffset; 947 if (!oldscr || (scr->pcs.dispoffset != oldscr->pcs.dispoffset)) { 948 vga_6845_write(vh, startadrh, scr->pcs.dispoffset >> 9); 949 vga_6845_write(vh, startadrl, scr->pcs.dispoffset >> 1); 950 } 951 952 bus_space_write_region_2(vh->vh_memt, vh->vh_memh, 953 scr->pcs.dispoffset, scr->pcs.mem, 954 type->ncols * type->nrows); 955 scr->pcs.active = 1; 956 957 vc->active = scr; 958 959 pcdisplay_cursor(&scr->pcs, scr->pcs.cursoron, 960 scr->pcs.cursorrow, scr->pcs.cursorcol); 961 962 vc->wantedscreen = 0; 963 if (vc->switchcb) 964 (*vc->switchcb)(vc->switchcbarg, 0, 0); 965 } 966 967 static int 968 vga_load_font(void *v, void *cookie, struct wsdisplay_font *data) 969 { 970 struct vga_config *vc = v; 971 struct vgascreen *scr = cookie; 972 char *name2; 973 int res; 974 975 if (scr) { 976 name2 = NULL; 977 if (data->name) { 978 name2 = strchr(data->name, ','); 979 if (name2) 980 *name2++ = '\0'; 981 } 982 res = vga_selectfont(vc, scr, data->name, name2); 983 if (!res && scr->pcs.active) 984 vga_setfont(vc, scr); 985 return (res); 986 } 987 988 return (0); 989 } 990 991 static int 992 vga_allocattr(void *id, int fg, int bg, int flags, long *attrp) 993 { 994 struct vgascreen *scr = id; 995 struct vga_config *vc = scr->cfg; 996 997 if (vc->hdl.vh_mono) { 998 if (flags & WSATTR_WSCOLORS) 999 return (EINVAL); 1000 if (flags & WSATTR_REVERSE) 1001 *attrp = 0x70; 1002 else 1003 *attrp = 0x07; 1004 if (flags & WSATTR_UNDERLINE) 1005 *attrp |= FG_UNDERLINE; 1006 if (flags & WSATTR_HILIT) 1007 *attrp |= FG_INTENSE; 1008 } else { 1009 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1010 return (EINVAL); 1011 if (flags & WSATTR_WSCOLORS) 1012 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1013 else 1014 *attrp = 7; 1015 if (flags & WSATTR_HILIT) 1016 *attrp += 8; 1017 } 1018 if (flags & WSATTR_BLINK) 1019 *attrp |= FG_BLINK; 1020 return (0); 1021 } 1022 1023 static void 1024 vga_copyrows(void *id, int srcrow, int dstrow, int nrows) 1025 { 1026 struct vgascreen *scr = id; 1027 bus_space_tag_t memt = scr->pcs.hdl->ph_memt; 1028 bus_space_handle_t memh = scr->pcs.hdl->ph_memh; 1029 int ncols = scr->pcs.type->ncols; 1030 bus_size_t srcoff, dstoff; 1031 1032 srcoff = srcrow * ncols + 0; 1033 dstoff = dstrow * ncols + 0; 1034 1035 if (scr->pcs.active) { 1036 if (dstrow == 0 && (srcrow + nrows == scr->pcs.type->nrows)) { 1037 #ifdef PCDISPLAY_SOFTCURSOR 1038 int cursoron = scr->pcs.cursoron; 1039 1040 if (cursoron) 1041 pcdisplay_cursor(&scr->pcs, 0, 1042 scr->pcs.cursorrow, scr->pcs.cursorcol); 1043 #endif 1044 /* scroll up whole screen */ 1045 if ((scr->pcs.dispoffset + srcrow * ncols * 2) 1046 <= scr->maxdispoffset) { 1047 scr->pcs.dispoffset += srcrow * ncols * 2; 1048 } else { 1049 bus_space_copy_region_2(memt, memh, 1050 scr->pcs.dispoffset + srcoff * 2, 1051 memh, scr->mindispoffset, 1052 nrows * ncols); 1053 scr->pcs.dispoffset = scr->mindispoffset; 1054 } 1055 vga_6845_write(&scr->cfg->hdl, startadrh, 1056 scr->pcs.dispoffset >> 9); 1057 vga_6845_write(&scr->cfg->hdl, startadrl, 1058 scr->pcs.dispoffset >> 1); 1059 #ifdef PCDISPLAY_SOFTCURSOR 1060 if (cursoron) 1061 pcdisplay_cursor(&scr->pcs, 1, 1062 scr->pcs.cursorrow, scr->pcs.cursorcol); 1063 #endif 1064 } else { 1065 bus_space_copy_region_2(memt, memh, 1066 scr->pcs.dispoffset + srcoff * 2, 1067 memh, scr->pcs.dispoffset + dstoff * 2, 1068 nrows * ncols); 1069 } 1070 } else 1071 memcpy(&scr->pcs.mem[dstoff], &scr->pcs.mem[srcoff], 1072 nrows * ncols * 2); 1073 } 1074 1075 #ifdef WSCONS_SUPPORT_PCVTFONTS 1076 1077 #define NOTYET 0xffff 1078 static const u_int16_t pcvt_unichars[0xa0] = { 1079 /* 0 */ _e006U, /* N/L control */ 1080 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1081 NOTYET, 1082 0x2409, /* SYMBOL FOR HORIZONTAL TABULATION */ 1083 0x240a, /* SYMBOL FOR LINE FEED */ 1084 0x240b, /* SYMBOL FOR VERTICAL TABULATION */ 1085 0x240c, /* SYMBOL FOR FORM FEED */ 1086 0x240d, /* SYMBOL FOR CARRIAGE RETURN */ 1087 NOTYET, NOTYET, 1088 /* 1 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1089 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1090 /* 2 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1091 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1092 /* 3 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1093 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1094 /* 4 */ 0x03c1, /* GREEK SMALL LETTER RHO */ 1095 0x03c8, /* GREEK SMALL LETTER PSI */ 1096 0x2202, /* PARTIAL DIFFERENTIAL */ 1097 0x03bb, /* GREEK SMALL LETTER LAMDA */ 1098 0x03b9, /* GREEK SMALL LETTER IOTA */ 1099 0x03b7, /* GREEK SMALL LETTER ETA */ 1100 0x03b5, /* GREEK SMALL LETTER EPSILON */ 1101 0x03c7, /* GREEK SMALL LETTER CHI */ 1102 0x2228, /* LOGICAL OR */ 1103 0x2227, /* LOGICAL AND */ 1104 0x222a, /* UNION */ 1105 0x2283, /* SUPERSET OF */ 1106 0x2282, /* SUBSET OF */ 1107 0x03a5, /* GREEK CAPITAL LETTER UPSILON */ 1108 0x039e, /* GREEK CAPITAL LETTER XI */ 1109 0x03a8, /* GREEK CAPITAL LETTER PSI */ 1110 /* 5 */ 0x03a0, /* GREEK CAPITAL LETTER PI */ 1111 0x21d2, /* RIGHTWARDS DOUBLE ARROW */ 1112 0x21d4, /* LEFT RIGHT DOUBLE ARROW */ 1113 0x039b, /* GREEK CAPITAL LETTER LAMDA */ 1114 0x0398, /* GREEK CAPITAL LETTER THETA */ 1115 0x2243, /* ASYMPTOTICALLY EQUAL TO */ 1116 0x2207, /* NABLA */ 1117 0x2206, /* INCREMENT */ 1118 0x221d, /* PROPORTIONAL TO */ 1119 0x2234, /* THEREFORE */ 1120 0x222b, /* INTEGRAL */ 1121 0x2215, /* DIVISION SLASH */ 1122 0x2216, /* SET MINUS */ 1123 _e00eU, /* angle? */ 1124 _e00dU, /* inverted angle? */ 1125 _e00bU, /* braceleftmid */ 1126 /* 6 */ _e00cU, /* bracerightmid */ 1127 _e007U, /* bracelefttp */ 1128 _e008U, /* braceleftbt */ 1129 _e009U, /* bracerighttp */ 1130 _e00aU, /* bracerightbt */ 1131 0x221a, /* SQUARE ROOT */ 1132 0x03c9, /* GREEK SMALL LETTER OMEGA */ 1133 0x00a5, /* YEN SIGN */ 1134 0x03be, /* GREEK SMALL LETTER XI */ 1135 0x00fd, /* LATIN SMALL LETTER Y WITH ACUTE */ 1136 0x00fe, /* LATIN SMALL LETTER THORN */ 1137 0x00f0, /* LATIN SMALL LETTER ETH */ 1138 0x00de, /* LATIN CAPITAL LETTER THORN */ 1139 0x00dd, /* LATIN CAPITAL LETTER Y WITH ACUTE */ 1140 0x00d7, /* MULTIPLICATION SIGN */ 1141 0x00d0, /* LATIN CAPITAL LETTER ETH */ 1142 /* 7 */ 0x00be, /* VULGAR FRACTION THREE QUARTERS */ 1143 0x00b8, /* CEDILLA */ 1144 0x00b4, /* ACUTE ACCENT */ 1145 0x00af, /* MACRON */ 1146 0x00ae, /* REGISTERED SIGN */ 1147 0x00ad, /* SOFT HYPHEN */ 1148 0x00ac, /* NOT SIGN */ 1149 0x00a8, /* DIAERESIS */ 1150 0x2260, /* NOT EQUAL TO */ 1151 _e005U, /* scan 9 */ 1152 _e004U, /* scan 7 */ 1153 _e003U, /* scan 5 */ 1154 _e002U, /* scan 3 */ 1155 _e001U, /* scan 1 */ 1156 0x03c5, /* GREEK SMALL LETTER UPSILON */ 1157 0x00f8, /* LATIN SMALL LETTER O WITH STROKE */ 1158 /* 8 */ 0x0153, /* LATIN SMALL LIGATURE OE */ 1159 0x00f5, /* LATIN SMALL LETTER O WITH TILDE !!!doc bug */ 1160 0x00e3, /* LATIN SMALL LETTER A WITH TILDE */ 1161 0x0178, /* LATIN CAPITAL LETTER Y WITH DIAERESIS */ 1162 0x00db, /* LATIN CAPITAL LETTER U WITH CIRCUMFLEX */ 1163 0x00da, /* LATIN CAPITAL LETTER U WITH ACUTE */ 1164 0x00d9, /* LATIN CAPITAL LETTER U WITH GRAVE */ 1165 0x00d8, /* LATIN CAPITAL LETTER O WITH STROKE */ 1166 0x0152, /* LATIN CAPITAL LIGATURE OE */ 1167 0x00d5, /* LATIN CAPITAL LETTER O WITH TILDE */ 1168 0x00d4, /* LATIN CAPITAL LETTER O WITH CIRCUMFLEX */ 1169 0x00d3, /* LATIN CAPITAL LETTER O WITH ACUTE */ 1170 0x00d2, /* LATIN CAPITAL LETTER O WITH GRAVE */ 1171 0x00cf, /* LATIN CAPITAL LETTER I WITH DIAERESIS */ 1172 0x00ce, /* LATIN CAPITAL LETTER I WITH CIRCUMFLEX */ 1173 0x00cd, /* LATIN CAPITAL LETTER I WITH ACUTE */ 1174 /* 9 */ 0x00cc, /* LATIN CAPITAL LETTER I WITH GRAVE */ 1175 0x00cb, /* LATIN CAPITAL LETTER E WITH DIAERESIS */ 1176 0x00ca, /* LATIN CAPITAL LETTER E WITH CIRCUMFLEX */ 1177 0x00c8, /* LATIN CAPITAL LETTER E WITH GRAVE */ 1178 0x00c3, /* LATIN CAPITAL LETTER A WITH TILDE */ 1179 0x00c2, /* LATIN CAPITAL LETTER A WITH CIRCUMFLEX */ 1180 0x00c1, /* LATIN CAPITAL LETTER A WITH ACUTE */ 1181 0x00c0, /* LATIN CAPITAL LETTER A WITH GRAVE */ 1182 0x00b9, /* SUPERSCRIPT ONE */ 1183 0x00b7, /* MIDDLE DOT */ 1184 0x03b6, /* GREEK SMALL LETTER ZETA */ 1185 0x00b3, /* SUPERSCRIPT THREE */ 1186 0x00a9, /* COPYRIGHT SIGN */ 1187 0x00a4, /* CURRENCY SIGN */ 1188 0x03ba, /* GREEK SMALL LETTER KAPPA */ 1189 _e000U /* mirrored question mark? */ 1190 }; 1191 1192 static int vga_pcvt_mapchar(int, u_int *); 1193 1194 static int 1195 vga_pcvt_mapchar(int uni, u_int *index) 1196 { 1197 int i; 1198 1199 for (i = 0; i < 0xa0; i++) /* 0xa0..0xff are reserved */ 1200 if (uni == pcvt_unichars[i]) { 1201 *index = i; 1202 return (5); 1203 } 1204 *index = 0x99; /* middle dot */ 1205 return (0); 1206 } 1207 1208 #endif /* WSCONS_SUPPORT_PCVTFONTS */ 1209 1210 #ifdef WSCONS_SUPPORT_ISO7FONTS 1211 1212 static int 1213 vga_iso7_mapchar(int uni, u_int *index) 1214 { 1215 1216 /* 1217 * U+0384 (GREEK TONOS) to 1218 * U+03ce (GREEK SMALL LETTER OMEGA WITH TONOS) 1219 * map directly to the iso-9 font 1220 */ 1221 if (uni >= 0x0384 && uni <= 0x03ce) { 1222 /* U+0384 is at offset 0xb4 in the font */ 1223 *index = uni - 0x0384 + 0xb4; 1224 return (5); 1225 } 1226 1227 /* XXX more chars in the iso-9 font */ 1228 1229 *index = 0xa4; /* shaded rectangle */ 1230 return (0); 1231 } 1232 1233 #endif /* WSCONS_SUPPORT_ISO7FONTS */ 1234 1235 static int _vga_mapchar(void *, const struct egavga_font *, int, u_int *); 1236 1237 static int 1238 _vga_mapchar(void *id, const struct egavga_font *font, int uni, u_int *index) 1239 { 1240 1241 switch (font->wsfont->encoding) { 1242 case WSDISPLAY_FONTENC_ISO: 1243 if (uni < 256) { 1244 *index = uni; 1245 return (5); 1246 } else { 1247 *index = ' '; 1248 return (0); 1249 } 1250 break; 1251 case WSDISPLAY_FONTENC_IBM: 1252 return (pcdisplay_mapchar(id, uni, index)); 1253 #ifdef WSCONS_SUPPORT_PCVTFONTS 1254 case WSDISPLAY_FONTENC_PCVT: 1255 return (vga_pcvt_mapchar(uni, index)); 1256 #endif 1257 #ifdef WSCONS_SUPPORT_ISO7FONTS 1258 case WSDISPLAY_FONTENC_ISO7: 1259 return (vga_iso7_mapchar(uni, index)); 1260 #endif 1261 default: 1262 #ifdef VGAFONTDEBUG 1263 printf("_vga_mapchar: encoding=%d\n", font->wsfont->encoding); 1264 #endif 1265 *index = ' '; 1266 return (0); 1267 } 1268 } 1269 1270 static int 1271 vga_mapchar(void *id, int uni, u_int *index) 1272 { 1273 struct vgascreen *scr = id; 1274 u_int idx1, idx2; 1275 int res1, res2; 1276 1277 res1 = 0; 1278 idx1 = ' '; /* space */ 1279 if (scr->fontset1) 1280 res1 = _vga_mapchar(id, scr->fontset1, uni, &idx1); 1281 res2 = -1; 1282 if (scr->fontset2) { 1283 KASSERT(VGA_SCREEN_CANTWOFONTS(scr->pcs.type)); 1284 res2 = _vga_mapchar(id, scr->fontset2, uni, &idx2); 1285 } 1286 if (res2 > res1) { 1287 *index = idx2 | 0x0800; /* attribute bit 3 */ 1288 return (res2); 1289 } 1290 *index = idx1; 1291 return (res1); 1292 } 1293 1294 #ifdef WSDISPLAY_CHARFUNCS 1295 int 1296 vga_getwschar(void *cookie, struct wsdisplay_char *wschar) 1297 { 1298 struct vgascreen *scr = cookie; 1299 1300 if (scr == NULL) return 0; 1301 return (pcdisplay_getwschar(&scr->pcs, wschar)); 1302 } 1303 1304 int 1305 vga_putwschar(void *cookie, struct wsdisplay_char *wschar) 1306 { 1307 struct vgascreen *scr = cookie; 1308 1309 if (scr == NULL) return 0; 1310 return (pcdisplay_putwschar(&scr->pcs, wschar)); 1311 } 1312 #endif /* WSDISPLAY_CHARFUNCS */ 1313