vga.c revision 1.47
1 /* $NetBSD: vga.c,v 1.47 2002/03/13 15:05:15 ad 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 (at) 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 1.47 2002/03/13 15:05:15 ad 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 #include "opt_wsdisplay_compat.h" /* for WSCONS_SUPPORT_PCVTFONTS */ 55 56 static struct wsdisplay_font _vga_builtinfont = { 57 "builtin", 58 0, 256, 59 WSDISPLAY_FONTENC_IBM, 60 8, 16, 1, 61 WSDISPLAY_FONTORDER_L2R, 0, 62 0 63 }; 64 65 struct egavga_font { 66 struct wsdisplay_font *wsfont; 67 int cookie; /* wsfont handle */ 68 int slot; /* in adapter RAM */ 69 int usecount; 70 TAILQ_ENTRY(egavga_font) next; /* LRU queue */ 71 }; 72 73 static struct egavga_font vga_builtinfont = { 74 &_vga_builtinfont, 75 0, 0 76 }; 77 78 #ifdef VGA_CONSOLE_SCREENTYPE 79 static struct egavga_font vga_consolefont; 80 #endif 81 82 struct vgascreen { 83 struct pcdisplayscreen pcs; 84 85 LIST_ENTRY(vgascreen) next; 86 87 struct vga_config *cfg; 88 89 /* videostate */ 90 struct egavga_font *fontset1, *fontset2; 91 /* font data */ 92 /* palette */ 93 94 int mindispoffset, maxdispoffset; 95 }; 96 97 static int vgaconsole, vga_console_type, vga_console_attached; 98 static struct vgascreen vga_console_screen; 99 static struct vga_config vga_console_vc; 100 101 struct egavga_font *egavga_getfont(struct vga_config *, struct vgascreen *, 102 char *, int); 103 void egavga_unreffont(struct vga_config *, struct egavga_font *); 104 105 int vga_selectfont(struct vga_config *, struct vgascreen *, char *, char *); 106 void vga_init_screen(struct vga_config *, struct vgascreen *, 107 const struct wsscreen_descr *, int, long *); 108 void vga_init(struct vga_config *, bus_space_tag_t, bus_space_tag_t); 109 static void vga_setfont(struct vga_config *, struct vgascreen *); 110 111 static int vga_mapchar(void *, int, unsigned int *); 112 static int vga_alloc_attr(void *, int, int, int, long *); 113 static void vga_copyrows(void *, int, int, int); 114 115 const struct wsdisplay_emulops vga_emulops = { 116 pcdisplay_cursor, 117 vga_mapchar, 118 pcdisplay_putchar, 119 pcdisplay_copycols, 120 pcdisplay_erasecols, 121 vga_copyrows, 122 pcdisplay_eraserows, 123 vga_alloc_attr 124 }; 125 126 /* 127 * translate WS(=ANSI) color codes to standard pc ones 128 */ 129 static const unsigned char fgansitopc[] = { 130 #ifdef __alpha__ 131 /* 132 * XXX DEC HAS SWITCHED THE CODES FOR BLUE AND RED!!! 133 * XXX We should probably not bother with this 134 * XXX (reinitialize the palette registers). 135 */ 136 FG_BLACK, FG_BLUE, FG_GREEN, FG_CYAN, FG_RED, 137 FG_MAGENTA, FG_BROWN, FG_LIGHTGREY 138 #else 139 FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE, 140 FG_MAGENTA, FG_CYAN, FG_LIGHTGREY 141 #endif 142 }, bgansitopc[] = { 143 #ifdef __alpha__ 144 BG_BLACK, BG_BLUE, BG_GREEN, BG_CYAN, BG_RED, 145 BG_MAGENTA, BG_BROWN, BG_LIGHTGREY 146 #else 147 BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE, 148 BG_MAGENTA, BG_CYAN, BG_LIGHTGREY 149 #endif 150 }; 151 152 const struct wsscreen_descr vga_25lscreen = { 153 "80x25", 80, 25, 154 &vga_emulops, 155 8, 16, 156 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK 157 }, vga_25lscreen_mono = { 158 "80x25", 80, 25, 159 &vga_emulops, 160 8, 16, 161 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE 162 }, vga_25lscreen_bf = { 163 "80x25bf", 80, 25, 164 &vga_emulops, 165 8, 16, 166 WSSCREEN_WSCOLORS | WSSCREEN_BLINK 167 }, vga_40lscreen = { 168 "80x40", 80, 40, 169 &vga_emulops, 170 8, 10, 171 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK 172 }, vga_40lscreen_mono = { 173 "80x40", 80, 40, 174 &vga_emulops, 175 8, 10, 176 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE 177 }, vga_40lscreen_bf = { 178 "80x40bf", 80, 40, 179 &vga_emulops, 180 8, 10, 181 WSSCREEN_WSCOLORS | WSSCREEN_BLINK 182 }, vga_50lscreen = { 183 "80x50", 80, 50, 184 &vga_emulops, 185 8, 8, 186 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK 187 }, vga_50lscreen_mono = { 188 "80x50", 80, 50, 189 &vga_emulops, 190 8, 8, 191 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE 192 }, vga_50lscreen_bf = { 193 "80x50bf", 80, 50, 194 &vga_emulops, 195 8, 8, 196 WSSCREEN_WSCOLORS | WSSCREEN_BLINK 197 }, vga_24lscreen = { 198 "80x24", 80, 24, 199 &vga_emulops, 200 8, 16, 201 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK 202 }, vga_24lscreen_mono = { 203 "80x24", 80, 24, 204 &vga_emulops, 205 8, 16, 206 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE 207 }, vga_24lscreen_bf = { 208 "80x24bf", 80, 24, 209 &vga_emulops, 210 8, 16, 211 WSSCREEN_WSCOLORS | WSSCREEN_BLINK 212 }; 213 214 #define VGA_SCREEN_CANTWOFONTS(type) (!((type)->capabilities & WSSCREEN_HILIT)) 215 216 const struct wsscreen_descr *_vga_scrlist[] = { 217 &vga_25lscreen, 218 &vga_25lscreen_bf, 219 &vga_40lscreen, 220 &vga_40lscreen_bf, 221 &vga_50lscreen, 222 &vga_50lscreen_bf, 223 &vga_24lscreen, 224 &vga_24lscreen_bf, 225 /* XXX other formats, graphics screen? */ 226 }, *_vga_scrlist_mono[] = { 227 &vga_25lscreen_mono, 228 &vga_40lscreen_mono, 229 &vga_50lscreen_mono, 230 &vga_24lscreen_mono, 231 /* XXX other formats, graphics screen? */ 232 }; 233 234 const struct wsscreen_list vga_screenlist = { 235 sizeof(_vga_scrlist) / sizeof(struct wsscreen_descr *), 236 _vga_scrlist 237 }, vga_screenlist_mono = { 238 sizeof(_vga_scrlist_mono) / sizeof(struct wsscreen_descr *), 239 _vga_scrlist_mono 240 }; 241 242 static int vga_ioctl(void *, u_long, caddr_t, int, struct proc *); 243 static paddr_t vga_mmap(void *, off_t, int); 244 static int vga_alloc_screen(void *, const struct wsscreen_descr *, 245 void **, int *, int *, long *); 246 static void vga_free_screen(void *, void *); 247 static int vga_show_screen(void *, void *, int, 248 void (*)(void *, int, int), void *); 249 static int vga_load_font(void *, void *, struct wsdisplay_font *); 250 251 void vga_doswitch(struct vga_config *); 252 253 const struct wsdisplay_accessops vga_accessops = { 254 vga_ioctl, 255 vga_mmap, 256 vga_alloc_screen, 257 vga_free_screen, 258 vga_show_screen, 259 vga_load_font 260 }; 261 262 /* 263 * The following functions implement back-end configuration grabbing 264 * and attachment. 265 */ 266 int 267 vga_common_probe(bus_space_tag_t iot, bus_space_tag_t memt) 268 { 269 bus_space_handle_t ioh_vga, ioh_6845, memh; 270 u_int8_t regval; 271 u_int16_t vgadata; 272 int gotio_vga, gotio_6845, gotmem, mono, rv; 273 int dispoffset; 274 275 gotio_vga = gotio_6845 = gotmem = rv = 0; 276 277 if (bus_space_map(iot, 0x3c0, 0x10, 0, &ioh_vga)) 278 goto bad; 279 gotio_vga = 1; 280 281 /* read "misc output register" */ 282 regval = bus_space_read_1(iot, ioh_vga, 0xc); 283 mono = !(regval & 1); 284 285 if (bus_space_map(iot, (mono ? 0x3b0 : 0x3d0), 0x10, 0, &ioh_6845)) 286 goto bad; 287 gotio_6845 = 1; 288 289 if (bus_space_map(memt, 0xa0000, 0x20000, 0, &memh)) 290 goto bad; 291 gotmem = 1; 292 293 dispoffset = (mono ? 0x10000 : 0x18000); 294 295 vgadata = bus_space_read_2(memt, memh, dispoffset); 296 bus_space_write_2(memt, memh, dispoffset, 0xa55a); 297 if (bus_space_read_2(memt, memh, dispoffset) != 0xa55a) 298 goto bad; 299 bus_space_write_2(memt, memh, dispoffset, vgadata); 300 301 /* 302 * check if this is really a VGA 303 * (try to write "Color Select" register as XFree86 does) 304 * XXX check before if at least EGA? 305 */ 306 /* reset state */ 307 (void) bus_space_read_1(iot, ioh_6845, 10); 308 bus_space_write_1(iot, ioh_vga, VGA_ATC_INDEX, 309 20 | 0x20); /* colselect | enable */ 310 regval = bus_space_read_1(iot, ioh_vga, VGA_ATC_DATAR); 311 /* toggle the implemented bits */ 312 bus_space_write_1(iot, ioh_vga, VGA_ATC_DATAW, regval ^ 0x0f); 313 bus_space_write_1(iot, ioh_vga, VGA_ATC_INDEX, 314 20 | 0x20); 315 /* read back */ 316 if (bus_space_read_1(iot, ioh_vga, VGA_ATC_DATAR) != (regval ^ 0x0f)) 317 goto bad; 318 /* restore contents */ 319 bus_space_write_1(iot, ioh_vga, VGA_ATC_DATAW, regval); 320 321 rv = 1; 322 bad: 323 if (gotio_vga) 324 bus_space_unmap(iot, ioh_vga, 0x10); 325 if (gotio_6845) 326 bus_space_unmap(iot, ioh_6845, 0x10); 327 if (gotmem) 328 bus_space_unmap(memt, memh, 0x20000); 329 330 return (rv); 331 } 332 333 /* 334 * We want at least ASCII 32..127 be present in the 335 * first font slot. 336 */ 337 #define vga_valid_primary_font(f) \ 338 (f->wsfont->encoding == WSDISPLAY_FONTENC_IBM || \ 339 f->wsfont->encoding == WSDISPLAY_FONTENC_ISO || \ 340 f->wsfont->encoding == WSDISPLAY_FONTENC_ISO7) 341 342 struct egavga_font * 343 egavga_getfont(struct vga_config *vc, struct vgascreen *scr, char *name, 344 int primary) 345 { 346 struct egavga_font *f; 347 int cookie; 348 struct wsdisplay_font *wf; 349 350 TAILQ_FOREACH(f, &vc->vc_fontlist, next) { 351 if (wsfont_matches(f->wsfont, name, 352 8, scr->pcs.type->fontheight, 0, 353 WSDISPLAY_FONTORDER_L2R, 0) && 354 (!primary || vga_valid_primary_font(f))) { 355 #ifdef VGAFONTDEBUG 356 if (scr != &vga_console_screen || vga_console_attached) 357 printf("vga_getfont: %s already present\n", 358 name ? name : "<default>"); 359 #endif 360 goto found; 361 } 362 } 363 364 cookie = wsfont_find(name, 8, scr->pcs.type->fontheight, 0); 365 /* XXX obey "primary" */ 366 if (cookie == -1) { 367 #ifdef VGAFONTDEBUG 368 if (scr != &vga_console_screen || vga_console_attached) 369 printf("vga_getfont: %s not found\n", name); 370 #endif 371 return (0); 372 } 373 374 if (wsfont_lock(cookie, &wf)) 375 return (0); 376 377 #ifdef VGA_CONSOLE_SCREENTYPE 378 if (scr == &vga_console_screen) 379 f = &vga_consolefont; 380 else 381 #endif 382 f = malloc(sizeof(struct egavga_font), M_DEVBUF, M_NOWAIT); 383 if (!f) { 384 wsfont_unlock(cookie); 385 return (0); 386 } 387 f->wsfont = wf; 388 f->cookie = cookie; 389 f->slot = -1; /* not yet loaded */ 390 f->usecount = 0; /* incremented below */ 391 TAILQ_INSERT_TAIL(&vc->vc_fontlist, f, next); 392 393 found: 394 f->usecount++; 395 #ifdef VGAFONTDEBUG 396 if (scr != &vga_console_screen || vga_console_attached) 397 printf("vga_getfont: usecount=%d\n", f->usecount); 398 #endif 399 return (f); 400 } 401 402 void 403 egavga_unreffont(struct vga_config *vc, struct egavga_font *f) 404 { 405 406 f->usecount--; 407 #ifdef VGAFONTDEBUG 408 printf("vga_unreffont: usecount=%d\n", f->usecount); 409 #endif 410 if (f->usecount == 0 && f != &vga_builtinfont) { 411 TAILQ_REMOVE(&vc->vc_fontlist, f, next); 412 if (f->slot != -1) { 413 KASSERT(vc->vc_fonts[f->slot] == f); 414 vc->vc_fonts[f->slot] = 0; 415 } 416 wsfont_unlock(f->cookie); 417 #ifdef VGA_CONSOLE_SCREENTYPE 418 if (f != &vga_consolefont) 419 #endif 420 free(f, M_DEVBUF); 421 } 422 } 423 424 int 425 vga_selectfont(struct vga_config *vc, struct vgascreen *scr, char *name1, 426 char *name2) 427 { 428 const struct wsscreen_descr *type = scr->pcs.type; 429 struct egavga_font *f1, *f2; 430 431 f1 = egavga_getfont(vc, scr, name1, 1); 432 if (!f1) 433 return (ENXIO); 434 435 if (VGA_SCREEN_CANTWOFONTS(type) && name2) { 436 f2 = egavga_getfont(vc, scr, name2, 0); 437 if (!f2) { 438 egavga_unreffont(vc, f1); 439 return (ENXIO); 440 } 441 } else 442 f2 = 0; 443 444 #ifdef VGAFONTDEBUG 445 if (scr != &vga_console_screen || vga_console_attached) { 446 printf("vga (%s): font1=%s (slot %d)", type->name, 447 f1->wsfont->name, f1->slot); 448 if (f2) 449 printf(", font2=%s (slot %d)", 450 f2->wsfont->name, f2->slot); 451 printf("\n"); 452 } 453 #endif 454 if (scr->fontset1) 455 egavga_unreffont(vc, scr->fontset1); 456 scr->fontset1 = f1; 457 if (scr->fontset2) 458 egavga_unreffont(vc, scr->fontset2); 459 scr->fontset2 = f2; 460 return (0); 461 } 462 463 void 464 vga_init_screen(struct vga_config *vc, struct vgascreen *scr, 465 const struct wsscreen_descr *type, int existing, long *attrp) 466 { 467 int cpos; 468 int res; 469 470 scr->cfg = vc; 471 scr->pcs.hdl = (struct pcdisplay_handle *)&vc->hdl; 472 scr->pcs.type = type; 473 scr->pcs.active = existing; 474 scr->mindispoffset = 0; 475 scr->maxdispoffset = 0x8000 - type->nrows * type->ncols * 2; 476 477 if (existing) { 478 vc->active = scr; 479 480 cpos = vga_6845_read(&vc->hdl, cursorh) << 8; 481 cpos |= vga_6845_read(&vc->hdl, cursorl); 482 483 /* make sure we have a valid cursor position */ 484 if (cpos < 0 || cpos >= type->nrows * type->ncols) 485 cpos = 0; 486 487 scr->pcs.dispoffset = vga_6845_read(&vc->hdl, startadrh) << 9; 488 scr->pcs.dispoffset |= vga_6845_read(&vc->hdl, startadrl) << 1; 489 490 /* make sure we have a valid memory offset */ 491 if (scr->pcs.dispoffset < scr->mindispoffset || 492 scr->pcs.dispoffset > scr->maxdispoffset) 493 scr->pcs.dispoffset = scr->mindispoffset; 494 495 if (type != vc->currenttype) { 496 vga_setscreentype(&vc->hdl, type); 497 vc->currenttype = type; 498 } 499 } else { 500 cpos = 0; 501 scr->pcs.dispoffset = scr->mindispoffset; 502 } 503 504 scr->pcs.vc_crow = cpos / type->ncols; 505 scr->pcs.vc_ccol = cpos % type->ncols; 506 pcdisplay_cursor_init(&scr->pcs, existing); 507 508 #ifdef __alpha__ 509 if (!vc->hdl.vh_mono) 510 /* 511 * DEC firmware uses a blue background. 512 */ 513 res = vga_alloc_attr(scr, WSCOL_WHITE, WSCOL_BLUE, 514 WSATTR_WSCOLORS, attrp); 515 else 516 #endif 517 res = vga_alloc_attr(scr, 0, 0, 0, attrp); 518 #ifdef DIAGNOSTIC 519 if (res) 520 panic("vga_init_screen: attribute botch"); 521 #endif 522 523 scr->pcs.mem = NULL; 524 525 wsfont_init(); 526 scr->fontset1 = scr->fontset2 = 0; 527 if (vga_selectfont(vc, scr, 0, 0)) { 528 if (scr == &vga_console_screen) 529 panic("vga_init_screen: no font"); 530 else 531 printf("vga_init_screen: no font\n"); 532 } 533 if (existing) 534 vga_setfont(vc, scr); 535 536 vc->nscreens++; 537 LIST_INSERT_HEAD(&vc->screens, scr, next); 538 } 539 540 void 541 vga_init(struct vga_config *vc, bus_space_tag_t iot, bus_space_tag_t memt) 542 { 543 struct vga_handle *vh = &vc->hdl; 544 u_int8_t mor; 545 int i; 546 547 vh->vh_iot = iot; 548 vh->vh_memt = memt; 549 550 if (bus_space_map(vh->vh_iot, 0x3c0, 0x10, 0, &vh->vh_ioh_vga)) 551 panic("vga_common_setup: couldn't map vga io"); 552 553 /* read "misc output register" */ 554 mor = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, 0xc); 555 vh->vh_mono = !(mor & 1); 556 557 if (bus_space_map(vh->vh_iot, (vh->vh_mono ? 0x3b0 : 0x3d0), 0x10, 0, 558 &vh->vh_ioh_6845)) 559 panic("vga_common_setup: couldn't map 6845 io"); 560 561 if (bus_space_map(vh->vh_memt, 0xa0000, 0x20000, 0, &vh->vh_allmemh)) 562 panic("vga_common_setup: couldn't map memory"); 563 564 if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh, 565 (vh->vh_mono ? 0x10000 : 0x18000), 0x8000, 566 &vh->vh_memh)) 567 panic("vga_common_setup: mem subrange failed"); 568 569 /* should only reserve the space (no need to map - save KVM) */ 570 vc->vc_biostag = memt; 571 if (bus_space_map(vc->vc_biostag, 0xc0000, 0x8000, 0, 572 &vc->vc_bioshdl)) 573 vc->vc_biosmapped = 0; 574 else 575 vc->vc_biosmapped = 1; 576 577 vc->nscreens = 0; 578 LIST_INIT(&vc->screens); 579 vc->active = NULL; 580 vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen; 581 callout_init(&vc->vc_switch_callout); 582 583 vc->vc_fonts[0] = &vga_builtinfont; 584 for (i = 1; i < 8; i++) 585 vc->vc_fonts[i] = 0; 586 TAILQ_INIT(&vc->vc_fontlist); 587 TAILQ_INSERT_HEAD(&vc->vc_fontlist, &vga_builtinfont, next); 588 589 vc->currentfontset1 = vc->currentfontset2 = 0; 590 } 591 592 void 593 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, 594 bus_space_tag_t memt, int type, const struct vga_funcs *vf) 595 { 596 int console; 597 struct vga_config *vc; 598 struct wsemuldisplaydev_attach_args aa; 599 600 console = vga_is_console(iot, type); 601 602 if (console) { 603 vc = &vga_console_vc; 604 vga_console_attached = 1; 605 } else { 606 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK); 607 vga_init(vc, iot, memt); 608 } 609 610 vc->vc_type = type; 611 vc->vc_funcs = vf; 612 613 sc->sc_vc = vc; 614 vc->softc = sc; 615 616 aa.console = console; 617 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); 618 aa.accessops = &vga_accessops; 619 aa.accesscookie = vc; 620 621 config_found(&sc->sc_dev, &aa, wsemuldisplaydevprint); 622 } 623 624 int 625 vga_cnattach(bus_space_tag_t iot, bus_space_tag_t memt, int type, int check) 626 { 627 long defattr; 628 const struct wsscreen_descr *scr; 629 630 if (check && !vga_common_probe(iot, memt)) 631 return (ENXIO); 632 633 /* set up bus-independent VGA configuration */ 634 vga_init(&vga_console_vc, iot, memt); 635 #ifdef VGA_CONSOLE_SCREENTYPE 636 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 637 &vga_screenlist_mono : &vga_screenlist, VGA_CONSOLE_SCREENTYPE); 638 if (!scr) 639 panic("vga_cnattach: invalid screen type"); 640 #else 641 scr = vga_console_vc.currenttype; 642 #endif 643 vga_init_screen(&vga_console_vc, &vga_console_screen, scr, 1, &defattr); 644 645 wsdisplay_cnattach(scr, &vga_console_screen, 646 vga_console_screen.pcs.vc_ccol, 647 vga_console_screen.pcs.vc_crow, 648 defattr); 649 650 vgaconsole = 1; 651 vga_console_type = type; 652 return (0); 653 } 654 655 int 656 vga_is_console(bus_space_tag_t iot, int type) 657 { 658 if (vgaconsole && 659 !vga_console_attached && 660 iot == vga_console_vc.hdl.vh_iot && 661 (vga_console_type == -1 || (type == vga_console_type))) 662 return (1); 663 return (0); 664 } 665 666 #define VGA_TS_BLANK 0x20 667 668 static int 669 vga_get_video(struct vga_config *vc) 670 { 671 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_BLANK) == 0; 672 } 673 674 static void 675 vga_set_video(struct vga_config *vc, int state) 676 { 677 int val; 678 679 vga_ts_write(&vc->hdl, syncreset, 0x01); 680 if (state) { /* unblank screen */ 681 val = vga_ts_read(&vc->hdl, mode); 682 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_BLANK); 683 #ifndef VGA_NO_VBLANK 684 val = vga_6845_read(&vc->hdl, mode); 685 vga_6845_write(&vc->hdl, mode, val | 0x80); 686 #endif 687 } else { /* blank screen */ 688 val = vga_ts_read(&vc->hdl, mode); 689 vga_ts_write(&vc->hdl, mode, val | VGA_TS_BLANK); 690 #ifndef VGA_NO_VBLANK 691 val = vga_6845_read(&vc->hdl, mode); 692 vga_6845_write(&vc->hdl, mode, val & ~0x80); 693 #endif 694 } 695 vga_ts_write(&vc->hdl, syncreset, 0x03); 696 } 697 698 int 699 vga_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p) 700 { 701 struct vga_config *vc = v; 702 const struct vga_funcs *vf = vc->vc_funcs; 703 704 switch (cmd) { 705 case WSDISPLAYIO_GTYPE: 706 *(int *)data = vc->vc_type; 707 return 0; 708 709 case WSDISPLAYIO_GINFO: 710 /* XXX should get detailed hardware information here */ 711 return ENOTTY; 712 713 case WSDISPLAYIO_GVIDEO: 714 *(int *)data = (vga_get_video(vc) ? WSDISPLAYIO_VIDEO_ON : 715 WSDISPLAYIO_VIDEO_OFF); 716 return 0; 717 718 case WSDISPLAYIO_SVIDEO: 719 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 720 return 0; 721 722 case WSDISPLAYIO_GETCMAP: 723 case WSDISPLAYIO_PUTCMAP: 724 case WSDISPLAYIO_GCURPOS: 725 case WSDISPLAYIO_SCURPOS: 726 case WSDISPLAYIO_GCURMAX: 727 case WSDISPLAYIO_GCURSOR: 728 case WSDISPLAYIO_SCURSOR: 729 /* NONE of these operations are by the generic VGA driver. */ 730 return ENOTTY; 731 } 732 733 if (vc->vc_funcs == NULL) 734 return (-1); 735 736 if (vf->vf_ioctl == NULL) 737 return (-1); 738 739 return ((*vf->vf_ioctl)(v, cmd, data, flag, p)); 740 } 741 742 static paddr_t 743 vga_mmap(void *v, off_t offset, int prot) 744 { 745 struct vga_config *vc = v; 746 const struct vga_funcs *vf = vc->vc_funcs; 747 748 if (vc->vc_funcs == NULL) 749 return (-1); 750 751 if (vf->vf_mmap == NULL) 752 return (-1); 753 754 return ((*vf->vf_mmap)(v, offset, prot)); 755 } 756 757 int 758 vga_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep, 759 int *curxp, int *curyp, long *defattrp) 760 { 761 struct vga_config *vc = v; 762 struct vgascreen *scr; 763 764 if (vc->nscreens == 1) { 765 struct vgascreen *scr1 = vc->screens.lh_first; 766 /* 767 * When allocating the second screen, get backing store 768 * for the first one too. 769 * XXX We could be more clever and use video RAM. 770 */ 771 scr1->pcs.mem = 772 malloc(scr1->pcs.type->ncols * scr1->pcs.type->nrows * 2, 773 M_DEVBUF, M_WAITOK); 774 } 775 776 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 777 vga_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 778 779 if (vc->nscreens > 1) { 780 scr->pcs.mem = malloc(type->ncols * type->nrows * 2, 781 M_DEVBUF, M_WAITOK); 782 pcdisplay_eraserows(&scr->pcs, 0, type->nrows, *defattrp); 783 } 784 785 *cookiep = scr; 786 *curxp = scr->pcs.vc_ccol; 787 *curyp = scr->pcs.vc_crow; 788 789 return (0); 790 } 791 792 void 793 vga_free_screen(void *v, void *cookie) 794 { 795 struct vgascreen *vs = cookie; 796 struct vga_config *vc = vs->cfg; 797 798 LIST_REMOVE(vs, next); 799 if (vs->fontset1) 800 egavga_unreffont(vc, vs->fontset1); 801 if (vs->fontset2) 802 egavga_unreffont(vc, vs->fontset2); 803 804 if (vs != &vga_console_screen) 805 free(vs, M_DEVBUF); 806 else 807 panic("vga_free_screen: console"); 808 809 if (vc->active == vs) 810 vc->active = 0; 811 } 812 813 static void vga_usefont(struct vga_config *, struct egavga_font *); 814 815 static void 816 vga_usefont(struct vga_config *vc, struct egavga_font *f) 817 { 818 int slot; 819 struct egavga_font *of; 820 821 if (f->slot != -1) 822 goto toend; 823 824 for (slot = 0; slot < 8; slot++) { 825 if (!vc->vc_fonts[slot]) 826 goto loadit; 827 } 828 829 /* have to kick out another one */ 830 TAILQ_FOREACH(of, &vc->vc_fontlist, next) { 831 if (of->slot != -1) { 832 if (of == &vga_builtinfont) 833 continue; /* XXX for now */ 834 KASSERT(vc->vc_fonts[of->slot] == of); 835 slot = of->slot; 836 of->slot = -1; 837 goto loadit; 838 } 839 } 840 panic("vga_usefont"); 841 842 loadit: 843 vga_loadchars(&vc->hdl, slot, 0, 256, 844 f->wsfont->fontheight, 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.vc_crow, scr->pcs.vc_ccol); 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 = strchr(data->name, ','); 977 if (name2) 978 *name2++ = '\0'; 979 res = vga_selectfont(vc, scr, data->name, name2); 980 if (!res) 981 vga_setfont(vc, scr); 982 return (res); 983 } 984 985 return (0); 986 } 987 988 static int 989 vga_alloc_attr(void *id, int fg, int bg, int flags, long *attrp) 990 { 991 struct vgascreen *scr = id; 992 struct vga_config *vc = scr->cfg; 993 994 if (vc->hdl.vh_mono) { 995 if (flags & WSATTR_WSCOLORS) 996 return (EINVAL); 997 if (flags & WSATTR_REVERSE) 998 *attrp = 0x70; 999 else 1000 *attrp = 0x07; 1001 if (flags & WSATTR_UNDERLINE) 1002 *attrp |= FG_UNDERLINE; 1003 if (flags & WSATTR_HILIT) 1004 *attrp |= FG_INTENSE; 1005 } else { 1006 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1007 return (EINVAL); 1008 if (flags & WSATTR_WSCOLORS) 1009 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1010 else 1011 *attrp = 7; 1012 if (flags & WSATTR_HILIT) 1013 *attrp += 8; 1014 } 1015 if (flags & WSATTR_BLINK) 1016 *attrp |= FG_BLINK; 1017 return (0); 1018 } 1019 1020 static void 1021 vga_copyrows(void *id, int srcrow, int dstrow, int nrows) 1022 { 1023 struct vgascreen *scr = id; 1024 bus_space_tag_t memt = scr->pcs.hdl->ph_memt; 1025 bus_space_handle_t memh = scr->pcs.hdl->ph_memh; 1026 int ncols = scr->pcs.type->ncols; 1027 bus_size_t srcoff, dstoff; 1028 1029 srcoff = srcrow * ncols + 0; 1030 dstoff = dstrow * ncols + 0; 1031 1032 if (scr->pcs.active) { 1033 if (dstrow == 0 && (srcrow + nrows == scr->pcs.type->nrows)) { 1034 #ifdef PCDISPLAY_SOFTCURSOR 1035 int cursoron = scr->pcs.cursoron; 1036 1037 if (cursoron) 1038 pcdisplay_cursor(&scr->pcs, 0, 1039 scr->pcs.vc_crow, scr->pcs.vc_ccol); 1040 #endif 1041 /* scroll up whole screen */ 1042 if ((scr->pcs.dispoffset + srcrow * ncols * 2) 1043 <= scr->maxdispoffset) { 1044 scr->pcs.dispoffset += srcrow * ncols * 2; 1045 } else { 1046 bus_space_copy_region_2(memt, memh, 1047 scr->pcs.dispoffset + srcoff * 2, 1048 memh, scr->mindispoffset, 1049 nrows * ncols); 1050 scr->pcs.dispoffset = scr->mindispoffset; 1051 } 1052 vga_6845_write(&scr->cfg->hdl, startadrh, 1053 scr->pcs.dispoffset >> 9); 1054 vga_6845_write(&scr->cfg->hdl, startadrl, 1055 scr->pcs.dispoffset >> 1); 1056 #ifdef PCDISPLAY_SOFTCURSOR 1057 if (cursoron) 1058 pcdisplay_cursor(&scr->pcs, 1, 1059 scr->pcs.vc_crow, scr->pcs.vc_ccol); 1060 #endif 1061 } else { 1062 bus_space_copy_region_2(memt, memh, 1063 scr->pcs.dispoffset + srcoff * 2, 1064 memh, scr->pcs.dispoffset + dstoff * 2, 1065 nrows * ncols); 1066 } 1067 } else 1068 memcpy(&scr->pcs.mem[dstoff], &scr->pcs.mem[srcoff], 1069 nrows * ncols * 2); 1070 } 1071 1072 #ifdef WSCONS_SUPPORT_PCVTFONTS 1073 1074 #define NOTYET 0xffff 1075 static const u_int16_t pcvt_unichars[0xa0] = { 1076 /* 0 */ _e006U, /* N/L control */ 1077 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1078 NOTYET, 1079 0x2409, /* SYMBOL FOR HORIZONTAL TABULATION */ 1080 0x240a, /* SYMBOL FOR LINE FEED */ 1081 0x240b, /* SYMBOL FOR VERTICAL TABULATION */ 1082 0x240c, /* SYMBOL FOR FORM FEED */ 1083 0x240d, /* SYMBOL FOR CARRIAGE RETURN */ 1084 NOTYET, NOTYET, 1085 /* 1 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1086 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1087 /* 2 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1088 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1089 /* 3 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1090 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1091 /* 4 */ 0x03c1, /* GREEK SMALL LETTER RHO */ 1092 0x03c8, /* GREEK SMALL LETTER PSI */ 1093 0x2202, /* PARTIAL DIFFERENTIAL */ 1094 0x03bb, /* GREEK SMALL LETTER LAMDA */ 1095 0x03b9, /* GREEK SMALL LETTER IOTA */ 1096 0x03b7, /* GREEK SMALL LETTER ETA */ 1097 0x03b5, /* GREEK SMALL LETTER EPSILON */ 1098 0x03c7, /* GREEK SMALL LETTER CHI */ 1099 0x2228, /* LOGICAL OR */ 1100 0x2227, /* LOGICAL AND */ 1101 0x222a, /* UNION */ 1102 0x2283, /* SUPERSET OF */ 1103 0x2282, /* SUBSET OF */ 1104 0x03a5, /* GREEK CAPITAL LETTER UPSILON */ 1105 0x039e, /* GREEK CAPITAL LETTER XI */ 1106 0x03a8, /* GREEK CAPITAL LETTER PSI */ 1107 /* 5 */ 0x03a0, /* GREEK CAPITAL LETTER PI */ 1108 0x21d2, /* RIGHTWARDS DOUBLE ARROW */ 1109 0x21d4, /* LEFT RIGHT DOUBLE ARROW */ 1110 0x039b, /* GREEK CAPITAL LETTER LAMDA */ 1111 0x0398, /* GREEK CAPITAL LETTER THETA */ 1112 0x2243, /* ASYMPTOTICALLY EQUAL TO */ 1113 0x2207, /* NABLA */ 1114 0x2206, /* INCREMENT */ 1115 0x221d, /* PROPORTIONAL TO */ 1116 0x2234, /* THEREFORE */ 1117 0x222b, /* INTEGRAL */ 1118 0x2215, /* DIVISION SLASH */ 1119 0x2216, /* SET MINUS */ 1120 _e00eU, /* angle? */ 1121 _e00dU, /* inverted angle? */ 1122 _e00bU, /* braceleftmid */ 1123 /* 6 */ _e00cU, /* bracerightmid */ 1124 _e007U, /* bracelefttp */ 1125 _e008U, /* braceleftbt */ 1126 _e009U, /* bracerighttp */ 1127 _e00aU, /* bracerightbt */ 1128 0x221a, /* SQUARE ROOT */ 1129 0x03c9, /* GREEK SMALL LETTER OMEGA */ 1130 0x00a5, /* YEN SIGN */ 1131 0x03be, /* GREEK SMALL LETTER XI */ 1132 0x00fd, /* LATIN SMALL LETTER Y WITH ACUTE */ 1133 0x00fe, /* LATIN SMALL LETTER THORN */ 1134 0x00f0, /* LATIN SMALL LETTER ETH */ 1135 0x00de, /* LATIN CAPITAL LETTER THORN */ 1136 0x00dd, /* LATIN CAPITAL LETTER Y WITH ACUTE */ 1137 0x00d7, /* MULTIPLICATION SIGN */ 1138 0x00d0, /* LATIN CAPITAL LETTER ETH */ 1139 /* 7 */ 0x00be, /* VULGAR FRACTION THREE QUARTERS */ 1140 0x00b8, /* CEDILLA */ 1141 0x00b4, /* ACUTE ACCENT */ 1142 0x00af, /* MACRON */ 1143 0x00ae, /* REGISTERED SIGN */ 1144 0x00ad, /* SOFT HYPHEN */ 1145 0x00ac, /* NOT SIGN */ 1146 0x00a8, /* DIAERESIS */ 1147 0x2260, /* NOT EQUAL TO */ 1148 _e005U, /* scan 9 */ 1149 _e004U, /* scan 7 */ 1150 _e003U, /* scan 5 */ 1151 _e002U, /* scan 3 */ 1152 _e001U, /* scan 1 */ 1153 0x03c5, /* GREEK SMALL LETTER UPSILON */ 1154 0x00f8, /* LATIN SMALL LETTER O WITH STROKE */ 1155 /* 8 */ 0x0153, /* LATIN SMALL LIGATURE OE */ 1156 0x00f5, /* LATIN SMALL LETTER O WITH TILDE !!!doc bug */ 1157 0x00e3, /* LATIN SMALL LETTER A WITH TILDE */ 1158 0x0178, /* LATIN CAPITAL LETTER Y WITH DIAERESIS */ 1159 0x00db, /* LATIN CAPITAL LETTER U WITH CIRCUMFLEX */ 1160 0x00da, /* LATIN CAPITAL LETTER U WITH ACUTE */ 1161 0x00d9, /* LATIN CAPITAL LETTER U WITH GRAVE */ 1162 0x00d8, /* LATIN CAPITAL LETTER O WITH STROKE */ 1163 0x0152, /* LATIN CAPITAL LIGATURE OE */ 1164 0x00d5, /* LATIN CAPITAL LETTER O WITH TILDE */ 1165 0x00d4, /* LATIN CAPITAL LETTER O WITH CIRCUMFLEX */ 1166 0x00d3, /* LATIN CAPITAL LETTER O WITH ACUTE */ 1167 0x00d2, /* LATIN CAPITAL LETTER O WITH GRAVE */ 1168 0x00cf, /* LATIN CAPITAL LETTER I WITH DIAERESIS */ 1169 0x00ce, /* LATIN CAPITAL LETTER I WITH CIRCUMFLEX */ 1170 0x00cd, /* LATIN CAPITAL LETTER I WITH ACUTE */ 1171 /* 9 */ 0x00cc, /* LATIN CAPITAL LETTER I WITH GRAVE */ 1172 0x00cb, /* LATIN CAPITAL LETTER E WITH DIAERESIS */ 1173 0x00ca, /* LATIN CAPITAL LETTER E WITH CIRCUMFLEX */ 1174 0x00c8, /* LATIN CAPITAL LETTER E WITH GRAVE */ 1175 0x00c3, /* LATIN CAPITAL LETTER A WITH TILDE */ 1176 0x00c2, /* LATIN CAPITAL LETTER A WITH CIRCUMFLEX */ 1177 0x00c1, /* LATIN CAPITAL LETTER A WITH ACUTE */ 1178 0x00c0, /* LATIN CAPITAL LETTER A WITH GRAVE */ 1179 0x00b9, /* SUPERSCRIPT ONE */ 1180 0x00b7, /* MIDDLE DOT */ 1181 0x03b6, /* GREEK SMALL LETTER ZETA */ 1182 0x00b3, /* SUPERSCRIPT THREE */ 1183 0x00a9, /* COPYRIGHT SIGN */ 1184 0x00a4, /* CURRENCY SIGN */ 1185 0x03ba, /* GREEK SMALL LETTER KAPPA */ 1186 _e000U /* mirrored question mark? */ 1187 }; 1188 1189 static int vga_pcvt_mapchar(int, u_int *); 1190 1191 static int 1192 vga_pcvt_mapchar(int uni, u_int *index) 1193 { 1194 int i; 1195 1196 for (i = 0; i < 0xa0; i++) /* 0xa0..0xff are reserved */ 1197 if (uni == pcvt_unichars[i]) { 1198 *index = i; 1199 return (5); 1200 } 1201 *index = 0x99; /* middle dot */ 1202 return (0); 1203 } 1204 1205 #endif /* WSCONS_SUPPORT_PCVTFONTS */ 1206 1207 #ifdef WSCONS_SUPPORT_ISO7FONTS 1208 1209 static int 1210 vga_iso7_mapchar(int uni, u_int *index) 1211 { 1212 1213 /* 1214 * U+0384 (GREEK TONOS) to 1215 * U+03ce (GREEK SMALL LETTER OMEGA WITH TONOS) 1216 * map directly to the iso-9 font 1217 */ 1218 if (uni >= 0x0384 && uni <= 0x03ce) { 1219 /* U+0384 is at offset 0xb4 in the font */ 1220 *index = uni - 0x0384 + 0xb4; 1221 return (5); 1222 } 1223 1224 /* XXX more chars in the iso-9 font */ 1225 1226 *index = 0xa4; /* shaded rectangle */ 1227 return (0); 1228 } 1229 1230 #endif /* WSCONS_SUPPORT_ISO7FONTS */ 1231 1232 static int _vga_mapchar(void *, const struct egavga_font *, int, u_int *); 1233 1234 static int 1235 _vga_mapchar(void *id, const struct egavga_font *font, int uni, u_int *index) 1236 { 1237 1238 switch (font->wsfont->encoding) { 1239 case WSDISPLAY_FONTENC_ISO: 1240 if (uni < 256) { 1241 *index = uni; 1242 return (5); 1243 } else { 1244 *index = ' '; 1245 return (0); 1246 } 1247 break; 1248 case WSDISPLAY_FONTENC_IBM: 1249 return (pcdisplay_mapchar(id, uni, index)); 1250 #ifdef WSCONS_SUPPORT_PCVTFONTS 1251 case WSDISPLAY_FONTENC_PCVT: 1252 return (vga_pcvt_mapchar(uni, index)); 1253 #endif 1254 #ifdef WSCONS_SUPPORT_ISO7FONTS 1255 case WSDISPLAY_FONTENC_ISO7: 1256 return (vga_iso7_mapchar(uni, index)); 1257 #endif 1258 default: 1259 #ifdef VGAFONTDEBUG 1260 printf("_vga_mapchar: encoding=%d\n", font->wsfont->encoding); 1261 #endif 1262 *index = ' '; 1263 return (0); 1264 } 1265 } 1266 1267 static int 1268 vga_mapchar(void *id, int uni, u_int *index) 1269 { 1270 struct vgascreen *scr = id; 1271 u_int idx1, idx2; 1272 int res1, res2; 1273 1274 res1 = 0; 1275 idx1 = ' '; /* space */ 1276 if (scr->fontset1) 1277 res1 = _vga_mapchar(id, scr->fontset1, uni, &idx1); 1278 res2 = -1; 1279 if (scr->fontset2) { 1280 KASSERT(VGA_SCREEN_CANTWOFONTS(scr->pcs.type)); 1281 res2 = _vga_mapchar(id, scr->fontset2, uni, &idx2); 1282 } 1283 if (res2 > res1) { 1284 *index = idx2 | 0x0800; /* attribute bit 3 */ 1285 return (res2); 1286 } 1287 *index = idx1; 1288 return (res1); 1289 } 1290
Indexes created Thu Sep 25 16:09:42 GMT 2025