vga.c revision 1.89
1 /* $NetBSD: vga.c,v 1.89 2006/09/13 01:01:20 christos 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 /* for WSCONS_SUPPORT_PCVTFONTS */ 31 #include "opt_wsdisplay_compat.h" 32 /* for WSDISPLAY_CUSTOM_BORDER */ 33 #include "opt_wsdisplay_border.h" 34 /* for WSDISPLAY_CUSTOM_OUTPUT */ 35 #include "opt_wsmsgattrs.h" 36 37 #include <sys/cdefs.h> 38 __KERNEL_RCSID(0, "$NetBSD: vga.c,v 1.89 2006/09/13 01:01:20 christos Exp $"); 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 <machine/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, caddr_t, 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); 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(&sc->sc_dev, &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 struct vesafb_softc *vesafb; 744 745 for (dv = alldevs.tqh_first; dv; dv=dv->dv_list.tqe_next) 746 if (strncmp(dv->dv_xname, "vesafb", 6) == 0) { 747 vesafb = (struct vesafb_softc *)dv; 748 if (vesafb->sc_isconsole) 749 return (0); 750 } 751 #endif 752 if (vgaconsole && 753 !vga_console_attached && 754 iot == vga_console_vc.hdl.vh_iot && 755 (vga_console_type == -1 || (type == vga_console_type))) 756 return (1); 757 return (0); 758 } 759 760 static int 761 vga_get_video(struct vga_config *vc) 762 { 763 764 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0; 765 } 766 767 static void 768 vga_set_video(struct vga_config *vc, int state) 769 { 770 int val; 771 772 vga_ts_write(&vc->hdl, syncreset, 0x01); 773 if (state) { /* unblank screen */ 774 val = vga_ts_read(&vc->hdl, mode); 775 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK); 776 #ifndef VGA_NO_VBLANK 777 val = vga_6845_read(&vc->hdl, mode); 778 vga_6845_write(&vc->hdl, mode, val | 0x80); 779 #endif 780 } else { /* blank screen */ 781 val = vga_ts_read(&vc->hdl, mode); 782 vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK); 783 #ifndef VGA_NO_VBLANK 784 val = vga_6845_read(&vc->hdl, mode); 785 vga_6845_write(&vc->hdl, mode, val & ~0x80); 786 #endif 787 } 788 vga_ts_write(&vc->hdl, syncreset, 0x03); 789 } 790 791 int 792 vga_ioctl(void *v, void *vs, u_long cmd, caddr_t data, int flag, struct lwp *l) 793 { 794 struct vga_config *vc = v; 795 struct vgascreen *scr = vs; 796 const struct vga_funcs *vf = vc->vc_funcs; 797 798 switch (cmd) { 799 case WSDISPLAYIO_GTYPE: 800 *(int *)data = vc->vc_type; 801 return 0; 802 803 case WSDISPLAYIO_GINFO: 804 /* XXX should get detailed hardware information here */ 805 return EPASSTHROUGH; 806 807 case WSDISPLAYIO_GVIDEO: 808 *(int *)data = (vga_get_video(vc) ? 809 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); 810 return 0; 811 812 case WSDISPLAYIO_SVIDEO: 813 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 814 return 0; 815 816 case WSDISPLAYIO_GETWSCHAR: 817 KASSERT(scr != NULL); 818 return pcdisplay_getwschar(&scr->pcs, 819 (struct wsdisplay_char *)data); 820 821 case WSDISPLAYIO_PUTWSCHAR: 822 KASSERT(scr != NULL); 823 return pcdisplay_putwschar(&scr->pcs, 824 (struct wsdisplay_char *)data); 825 826 #ifdef WSDISPLAY_CUSTOM_BORDER 827 case WSDISPLAYIO_GBORDER: 828 return (vga_getborder(vc, (u_int *)data)); 829 830 case WSDISPLAYIO_SBORDER: 831 return (vga_setborder(vc, *(u_int *)data)); 832 #endif 833 834 case WSDISPLAYIO_GETCMAP: 835 case WSDISPLAYIO_PUTCMAP: 836 case WSDISPLAYIO_GCURPOS: 837 case WSDISPLAYIO_SCURPOS: 838 case WSDISPLAYIO_GCURMAX: 839 case WSDISPLAYIO_GCURSOR: 840 case WSDISPLAYIO_SCURSOR: 841 /* NONE of these operations are by the generic VGA driver. */ 842 return EPASSTHROUGH; 843 } 844 845 if (vc->vc_funcs == NULL) 846 return (EPASSTHROUGH); 847 848 if (vf->vf_ioctl == NULL) 849 return (EPASSTHROUGH); 850 851 return ((*vf->vf_ioctl)(v, cmd, data, flag, l)); 852 } 853 854 static paddr_t 855 vga_mmap(void *v, void *vs, off_t offset, int prot) 856 { 857 struct vga_config *vc = v; 858 const struct vga_funcs *vf = vc->vc_funcs; 859 860 if (vc->vc_funcs == NULL) 861 return (-1); 862 863 if (vf->vf_mmap == NULL) 864 return (-1); 865 866 return ((*vf->vf_mmap)(v, offset, prot)); 867 } 868 869 int 870 vga_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep, 871 int *curxp, int *curyp, long *defattrp) 872 { 873 struct vga_config *vc = v; 874 struct vgascreen *scr; 875 876 if (vc->nscreens == 1) { 877 struct vgascreen *scr1 = vc->screens.lh_first; 878 /* 879 * When allocating the second screen, get backing store 880 * for the first one too. 881 * XXX We could be more clever and use video RAM. 882 */ 883 scr1->pcs.mem = 884 malloc(scr1->pcs.type->ncols * scr1->pcs.type->nrows * 2, 885 M_DEVBUF, M_WAITOK); 886 } 887 888 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 889 vga_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 890 891 if (vc->nscreens > 1) { 892 scr->pcs.mem = malloc(type->ncols * type->nrows * 2, 893 M_DEVBUF, M_WAITOK); 894 pcdisplay_eraserows(&scr->pcs, 0, type->nrows, *defattrp); 895 } 896 897 *cookiep = scr; 898 *curxp = scr->pcs.cursorcol; 899 *curyp = scr->pcs.cursorrow; 900 901 return (0); 902 } 903 904 void 905 vga_free_screen(void *v, void *cookie) 906 { 907 struct vgascreen *vs = cookie; 908 struct vga_config *vc = vs->cfg; 909 910 LIST_REMOVE(vs, next); 911 vc->nscreens--; 912 if (vs->fontset1) 913 egavga_unreffont(vc, vs->fontset1); 914 if (vs->fontset2) 915 egavga_unreffont(vc, vs->fontset2); 916 917 if (vs != &vga_console_screen) 918 free(vs, M_DEVBUF); 919 else 920 panic("vga_free_screen: console"); 921 922 if (vc->active == vs) 923 vc->active = 0; 924 } 925 926 static void vga_usefont(struct vga_config *, struct egavga_font *); 927 928 static void 929 vga_usefont(struct vga_config *vc, struct egavga_font *f) 930 { 931 int slot; 932 struct egavga_font *of; 933 934 if (f->slot != -1) 935 goto toend; 936 937 for (slot = 0; slot < vc->vc_nfontslots; slot++) { 938 if (!vc->vc_fonts[slot]) 939 goto loadit; 940 } 941 942 /* have to kick out another one */ 943 TAILQ_FOREACH(of, &vc->vc_fontlist, next) { 944 if (of->slot != -1) { 945 KASSERT(vc->vc_fonts[of->slot] == of); 946 slot = of->slot; 947 of->slot = -1; 948 goto loadit; 949 } 950 } 951 panic("vga_usefont"); 952 953 loadit: 954 vga_loadchars(&vc->hdl, slot, f->wsfont->firstchar, 955 f->wsfont->numchars, f->wsfont->fontheight, f->wsfont->data); 956 f->slot = slot; 957 vc->vc_fonts[slot] = f; 958 959 toend: 960 TAILQ_REMOVE(&vc->vc_fontlist, f, next); 961 TAILQ_INSERT_TAIL(&vc->vc_fontlist, f, next); 962 } 963 964 static void 965 vga_setfont(struct vga_config *vc, struct vgascreen *scr) 966 { 967 int fontslot1, fontslot2; 968 969 if (scr->fontset1) 970 vga_usefont(vc, scr->fontset1); 971 if (scr->fontset2) 972 vga_usefont(vc, scr->fontset2); 973 974 fontslot1 = (scr->fontset1 ? scr->fontset1->slot : 0); 975 fontslot2 = (scr->fontset2 ? scr->fontset2->slot : fontslot1); 976 if (vc->currentfontset1 != fontslot1 || 977 vc->currentfontset2 != fontslot2) { 978 vga_setfontset(&vc->hdl, fontslot1, fontslot2); 979 vc->currentfontset1 = fontslot1; 980 vc->currentfontset2 = fontslot2; 981 } 982 } 983 984 int 985 vga_show_screen(void *v, void *cookie, int waitok, 986 void (*cb)(void *, int, int), void *cbarg) 987 { 988 struct vgascreen *scr = cookie, *oldscr; 989 struct vga_config *vc = scr->cfg; 990 991 oldscr = vc->active; /* can be NULL! */ 992 if (scr == oldscr) { 993 return (0); 994 } 995 996 vc->wantedscreen = cookie; 997 vc->switchcb = cb; 998 vc->switchcbarg = cbarg; 999 if (cb) { 1000 callout_reset(&vc->vc_switch_callout, 0, 1001 (void(*)(void *))vga_doswitch, vc); 1002 return (EAGAIN); 1003 } 1004 1005 vga_doswitch(vc); 1006 return (0); 1007 } 1008 1009 void 1010 vga_doswitch(struct vga_config *vc) 1011 { 1012 struct vgascreen *scr, *oldscr; 1013 struct vga_handle *vh = &vc->hdl; 1014 const struct wsscreen_descr *type; 1015 1016 scr = vc->wantedscreen; 1017 if (!scr) { 1018 printf("vga_doswitch: disappeared\n"); 1019 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 1020 return; 1021 } 1022 type = scr->pcs.type; 1023 oldscr = vc->active; /* can be NULL! */ 1024 #ifdef DIAGNOSTIC 1025 if (oldscr) { 1026 if (!oldscr->pcs.active) 1027 panic("vga_show_screen: not active"); 1028 if (oldscr->pcs.type != vc->currenttype) 1029 panic("vga_show_screen: bad type"); 1030 } 1031 #endif 1032 if (scr == oldscr) { 1033 return; 1034 } 1035 #ifdef DIAGNOSTIC 1036 if (scr->pcs.active) 1037 panic("vga_show_screen: active"); 1038 #endif 1039 1040 if (oldscr) { 1041 const struct wsscreen_descr *oldtype = oldscr->pcs.type; 1042 1043 oldscr->pcs.active = 0; 1044 bus_space_read_region_2(vh->vh_memt, vh->vh_memh, 1045 oldscr->pcs.dispoffset, oldscr->pcs.mem, 1046 oldtype->ncols * oldtype->nrows); 1047 } 1048 1049 if (vc->currenttype != type) { 1050 vga_setscreentype(vh, type); 1051 vc->currenttype = type; 1052 } 1053 1054 vga_setfont(vc, scr); 1055 /* XXX swich colours! */ 1056 1057 scr->pcs.visibleoffset = scr->pcs.dispoffset = scr->mindispoffset; 1058 if (!oldscr || (scr->pcs.dispoffset != oldscr->pcs.dispoffset)) { 1059 vga_6845_write(vh, startadrh, scr->pcs.dispoffset >> 9); 1060 vga_6845_write(vh, startadrl, scr->pcs.dispoffset >> 1); 1061 } 1062 1063 bus_space_write_region_2(vh->vh_memt, vh->vh_memh, 1064 scr->pcs.dispoffset, scr->pcs.mem, type->ncols * type->nrows); 1065 scr->pcs.active = 1; 1066 1067 vc->active = scr; 1068 1069 pcdisplay_cursor(&scr->pcs, scr->pcs.cursoron, 1070 scr->pcs.cursorrow, scr->pcs.cursorcol); 1071 1072 vc->wantedscreen = 0; 1073 if (vc->switchcb) 1074 (*vc->switchcb)(vc->switchcbarg, 0, 0); 1075 } 1076 1077 static int 1078 vga_load_font(void *v, void *cookie, struct wsdisplay_font *data) 1079 { 1080 struct vga_config *vc = v; 1081 struct vgascreen *scr = cookie; 1082 char *name2; 1083 int res; 1084 1085 if (scr) { 1086 name2 = NULL; 1087 if (data->name) { 1088 name2 = strchr(data->name, ','); 1089 if (name2) 1090 *name2++ = '\0'; 1091 } 1092 res = vga_selectfont(vc, scr, data->name, name2); 1093 if (!res && scr->pcs.active) 1094 vga_setfont(vc, scr); 1095 return (res); 1096 } 1097 1098 return (0); 1099 } 1100 1101 static int 1102 vga_allocattr(void *id, int fg, int bg, int flags, long *attrp) 1103 { 1104 struct vgascreen *scr = id; 1105 struct vga_config *vc = scr->cfg; 1106 1107 if (vc->hdl.vh_mono) { 1108 if (flags & WSATTR_WSCOLORS) 1109 return (EINVAL); 1110 if (flags & WSATTR_REVERSE) 1111 *attrp = 0x70; 1112 else 1113 *attrp = 0x07; 1114 if (flags & WSATTR_UNDERLINE) 1115 *attrp |= FG_UNDERLINE; 1116 if (flags & WSATTR_HILIT) 1117 *attrp |= FG_INTENSE; 1118 } else { 1119 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1120 return (EINVAL); 1121 if (flags & WSATTR_WSCOLORS) 1122 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1123 else 1124 *attrp = 7; 1125 if (flags & WSATTR_HILIT) 1126 *attrp += 8; 1127 } 1128 if (flags & WSATTR_BLINK) 1129 *attrp |= FG_BLINK; 1130 return (0); 1131 } 1132 1133 static void 1134 vga_copyrows(void *id, int srcrow, int dstrow, int nrows) 1135 { 1136 struct vgascreen *scr = id; 1137 bus_space_tag_t memt = scr->pcs.hdl->ph_memt; 1138 bus_space_handle_t memh = scr->pcs.hdl->ph_memh; 1139 int ncols = scr->pcs.type->ncols; 1140 bus_size_t srcoff, dstoff; 1141 1142 srcoff = srcrow * ncols + 0; 1143 dstoff = dstrow * ncols + 0; 1144 1145 if (scr->pcs.active) { 1146 if (dstrow == 0 && (srcrow + nrows == scr->pcs.type->nrows)) { 1147 #ifdef PCDISPLAY_SOFTCURSOR 1148 int cursoron = scr->pcs.cursoron; 1149 1150 if (cursoron) 1151 pcdisplay_cursor(&scr->pcs, 0, 1152 scr->pcs.cursorrow, scr->pcs.cursorcol); 1153 #endif 1154 /* scroll up whole screen */ 1155 if ((scr->pcs.dispoffset + srcrow * ncols * 2) 1156 <= scr->maxdispoffset) { 1157 scr->pcs.dispoffset += srcrow * ncols * 2; 1158 } else { 1159 bus_space_copy_region_2(memt, memh, 1160 scr->pcs.dispoffset + srcoff * 2, 1161 memh, scr->mindispoffset, nrows * ncols); 1162 scr->pcs.dispoffset = scr->mindispoffset; 1163 } 1164 vga_6845_write(&scr->cfg->hdl, startadrh, 1165 scr->pcs.dispoffset >> 9); 1166 vga_6845_write(&scr->cfg->hdl, startadrl, 1167 scr->pcs.dispoffset >> 1); 1168 #ifdef PCDISPLAY_SOFTCURSOR 1169 if (cursoron) 1170 pcdisplay_cursor(&scr->pcs, 1, 1171 scr->pcs.cursorrow, scr->pcs.cursorcol); 1172 #endif 1173 } else { 1174 bus_space_copy_region_2(memt, memh, 1175 scr->pcs.dispoffset + srcoff * 2, 1176 memh, scr->pcs.dispoffset + dstoff * 2, 1177 nrows * ncols); 1178 } 1179 } else 1180 memcpy(&scr->pcs.mem[dstoff], &scr->pcs.mem[srcoff], 1181 nrows * ncols * 2); 1182 } 1183 1184 #ifdef WSCONS_SUPPORT_PCVTFONTS 1185 1186 #define NOTYET 0xffff 1187 static const u_int16_t pcvt_unichars[0xa0] = { 1188 /* 0 */ _e006U, /* N/L control */ 1189 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1190 NOTYET, 1191 0x2409, /* SYMBOL FOR HORIZONTAL TABULATION */ 1192 0x240a, /* SYMBOL FOR LINE FEED */ 1193 0x240b, /* SYMBOL FOR VERTICAL TABULATION */ 1194 0x240c, /* SYMBOL FOR FORM FEED */ 1195 0x240d, /* SYMBOL FOR CARRIAGE RETURN */ 1196 NOTYET, NOTYET, 1197 /* 1 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1198 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1199 /* 2 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1200 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1201 /* 3 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1202 NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, 1203 /* 4 */ 0x03c1, /* GREEK SMALL LETTER RHO */ 1204 0x03c8, /* GREEK SMALL LETTER PSI */ 1205 0x2202, /* PARTIAL DIFFERENTIAL */ 1206 0x03bb, /* GREEK SMALL LETTER LAMDA */ 1207 0x03b9, /* GREEK SMALL LETTER IOTA */ 1208 0x03b7, /* GREEK SMALL LETTER ETA */ 1209 0x03b5, /* GREEK SMALL LETTER EPSILON */ 1210 0x03c7, /* GREEK SMALL LETTER CHI */ 1211 0x2228, /* LOGICAL OR */ 1212 0x2227, /* LOGICAL AND */ 1213 0x222a, /* UNION */ 1214 0x2283, /* SUPERSET OF */ 1215 0x2282, /* SUBSET OF */ 1216 0x03a5, /* GREEK CAPITAL LETTER UPSILON */ 1217 0x039e, /* GREEK CAPITAL LETTER XI */ 1218 0x03a8, /* GREEK CAPITAL LETTER PSI */ 1219 /* 5 */ 0x03a0, /* GREEK CAPITAL LETTER PI */ 1220 0x21d2, /* RIGHTWARDS DOUBLE ARROW */ 1221 0x21d4, /* LEFT RIGHT DOUBLE ARROW */ 1222 0x039b, /* GREEK CAPITAL LETTER LAMDA */ 1223 0x0398, /* GREEK CAPITAL LETTER THETA */ 1224 0x2243, /* ASYMPTOTICALLY EQUAL TO */ 1225 0x2207, /* NABLA */ 1226 0x2206, /* INCREMENT */ 1227 0x221d, /* PROPORTIONAL TO */ 1228 0x2234, /* THEREFORE */ 1229 0x222b, /* INTEGRAL */ 1230 0x2215, /* DIVISION SLASH */ 1231 0x2216, /* SET MINUS */ 1232 _e00eU, /* angle? */ 1233 _e00dU, /* inverted angle? */ 1234 _e00bU, /* braceleftmid */ 1235 /* 6 */ _e00cU, /* bracerightmid */ 1236 _e007U, /* bracelefttp */ 1237 _e008U, /* braceleftbt */ 1238 _e009U, /* bracerighttp */ 1239 _e00aU, /* bracerightbt */ 1240 0x221a, /* SQUARE ROOT */ 1241 0x03c9, /* GREEK SMALL LETTER OMEGA */ 1242 0x00a5, /* YEN SIGN */ 1243 0x03be, /* GREEK SMALL LETTER XI */ 1244 0x00fd, /* LATIN SMALL LETTER Y WITH ACUTE */ 1245 0x00fe, /* LATIN SMALL LETTER THORN */ 1246 0x00f0, /* LATIN SMALL LETTER ETH */ 1247 0x00de, /* LATIN CAPITAL LETTER THORN */ 1248 0x00dd, /* LATIN CAPITAL LETTER Y WITH ACUTE */ 1249 0x00d7, /* MULTIPLICATION SIGN */ 1250 0x00d0, /* LATIN CAPITAL LETTER ETH */ 1251 /* 7 */ 0x00be, /* VULGAR FRACTION THREE QUARTERS */ 1252 0x00b8, /* CEDILLA */ 1253 0x00b4, /* ACUTE ACCENT */ 1254 0x00af, /* MACRON */ 1255 0x00ae, /* REGISTERED SIGN */ 1256 0x00ad, /* SOFT HYPHEN */ 1257 0x00ac, /* NOT SIGN */ 1258 0x00a8, /* DIAERESIS */ 1259 0x2260, /* NOT EQUAL TO */ 1260 _e005U, /* scan 9 */ 1261 _e004U, /* scan 7 */ 1262 _e003U, /* scan 5 */ 1263 _e002U, /* scan 3 */ 1264 _e001U, /* scan 1 */ 1265 0x03c5, /* GREEK SMALL LETTER UPSILON */ 1266 0x00f8, /* LATIN SMALL LETTER O WITH STROKE */ 1267 /* 8 */ 0x0153, /* LATIN SMALL LIGATURE OE */ 1268 0x00f5, /* LATIN SMALL LETTER O WITH TILDE !!!doc bug */ 1269 0x00e3, /* LATIN SMALL LETTER A WITH TILDE */ 1270 0x0178, /* LATIN CAPITAL LETTER Y WITH DIAERESIS */ 1271 0x00db, /* LATIN CAPITAL LETTER U WITH CIRCUMFLEX */ 1272 0x00da, /* LATIN CAPITAL LETTER U WITH ACUTE */ 1273 0x00d9, /* LATIN CAPITAL LETTER U WITH GRAVE */ 1274 0x00d8, /* LATIN CAPITAL LETTER O WITH STROKE */ 1275 0x0152, /* LATIN CAPITAL LIGATURE OE */ 1276 0x00d5, /* LATIN CAPITAL LETTER O WITH TILDE */ 1277 0x00d4, /* LATIN CAPITAL LETTER O WITH CIRCUMFLEX */ 1278 0x00d3, /* LATIN CAPITAL LETTER O WITH ACUTE */ 1279 0x00d2, /* LATIN CAPITAL LETTER O WITH GRAVE */ 1280 0x00cf, /* LATIN CAPITAL LETTER I WITH DIAERESIS */ 1281 0x00ce, /* LATIN CAPITAL LETTER I WITH CIRCUMFLEX */ 1282 0x00cd, /* LATIN CAPITAL LETTER I WITH ACUTE */ 1283 /* 9 */ 0x00cc, /* LATIN CAPITAL LETTER I WITH GRAVE */ 1284 0x00cb, /* LATIN CAPITAL LETTER E WITH DIAERESIS */ 1285 0x00ca, /* LATIN CAPITAL LETTER E WITH CIRCUMFLEX */ 1286 0x00c8, /* LATIN CAPITAL LETTER E WITH GRAVE */ 1287 0x00c3, /* LATIN CAPITAL LETTER A WITH TILDE */ 1288 0x00c2, /* LATIN CAPITAL LETTER A WITH CIRCUMFLEX */ 1289 0x00c1, /* LATIN CAPITAL LETTER A WITH ACUTE */ 1290 0x00c0, /* LATIN CAPITAL LETTER A WITH GRAVE */ 1291 0x00b9, /* SUPERSCRIPT ONE */ 1292 0x00b7, /* MIDDLE DOT */ 1293 0x03b6, /* GREEK SMALL LETTER ZETA */ 1294 0x00b3, /* SUPERSCRIPT THREE */ 1295 0x00a9, /* COPYRIGHT SIGN */ 1296 0x00a4, /* CURRENCY SIGN */ 1297 0x03ba, /* GREEK SMALL LETTER KAPPA */ 1298 _e000U /* mirrored question mark? */ 1299 }; 1300 1301 static int vga_pcvt_mapchar(int, u_int *); 1302 1303 static int 1304 vga_pcvt_mapchar(int uni, u_int *index) 1305 { 1306 int i; 1307 1308 for (i = 0; i < 0xa0; i++) /* 0xa0..0xff are reserved */ 1309 if (uni == pcvt_unichars[i]) { 1310 *index = i; 1311 return (5); 1312 } 1313 *index = 0x99; /* middle dot */ 1314 return (0); 1315 } 1316 1317 #endif /* WSCONS_SUPPORT_PCVTFONTS */ 1318 1319 #ifdef WSCONS_SUPPORT_ISO7FONTS 1320 1321 static int 1322 vga_iso7_mapchar(int uni, u_int *index) 1323 { 1324 1325 /* 1326 * U+0384 (GREEK TONOS) to 1327 * U+03ce (GREEK SMALL LETTER OMEGA WITH TONOS) 1328 * map directly to the iso-9 font 1329 */ 1330 if (uni >= 0x0384 && uni <= 0x03ce) { 1331 /* U+0384 is at offset 0xb4 in the font */ 1332 *index = uni - 0x0384 + 0xb4; 1333 return (5); 1334 } 1335 1336 /* XXX more chars in the iso-9 font */ 1337 1338 *index = 0xa4; /* shaded rectangle */ 1339 return (0); 1340 } 1341 1342 #endif /* WSCONS_SUPPORT_ISO7FONTS */ 1343 1344 static int _vga_mapchar(void *, const struct egavga_font *, int, u_int *); 1345 1346 static int 1347 _vga_mapchar(void *id, const struct egavga_font *font, int uni, u_int *index) 1348 { 1349 1350 switch (font->wsfont->encoding) { 1351 case WSDISPLAY_FONTENC_ISO: 1352 if (uni < 256) { 1353 *index = uni; 1354 return (5); 1355 } else { 1356 *index = ' '; 1357 return (0); 1358 } 1359 case WSDISPLAY_FONTENC_IBM: 1360 return (pcdisplay_mapchar(id, uni, index)); 1361 #ifdef WSCONS_SUPPORT_PCVTFONTS 1362 case WSDISPLAY_FONTENC_PCVT: 1363 return (vga_pcvt_mapchar(uni, index)); 1364 #endif 1365 #ifdef WSCONS_SUPPORT_ISO7FONTS 1366 case WSDISPLAY_FONTENC_ISO7: 1367 return (vga_iso7_mapchar(uni, index)); 1368 #endif 1369 default: 1370 #ifdef VGAFONTDEBUG 1371 printf("_vga_mapchar: encoding=%d\n", font->wsfont->encoding); 1372 #endif 1373 *index = ' '; 1374 return (0); 1375 } 1376 } 1377 1378 static int 1379 vga_mapchar(void *id, int uni, u_int *index) 1380 { 1381 struct vgascreen *scr = id; 1382 u_int idx1, idx2; 1383 int res1, res2; 1384 1385 res1 = 0; 1386 idx1 = ' '; /* space */ 1387 if (scr->fontset1) 1388 res1 = _vga_mapchar(id, scr->fontset1, uni, &idx1); 1389 res2 = -1; 1390 if (scr->fontset2) { 1391 KASSERT(VGA_SCREEN_CANTWOFONTS(scr->pcs.type)); 1392 res2 = _vga_mapchar(id, scr->fontset2, uni, &idx2); 1393 } 1394 if (res2 > res1) { 1395 *index = idx2 | 0x0800; /* attribute bit 3 */ 1396 return (res2); 1397 } 1398 *index = idx1; 1399 return (res1); 1400 } 1401 1402 #ifdef WSDISPLAY_SCROLLSUPPORT 1403 void 1404 vga_scroll(void *v, void *cookie, int lines) 1405 { 1406 struct vga_config *vc = v; 1407 struct vgascreen *scr = cookie; 1408 struct vga_handle *vh = &vc->hdl; 1409 1410 if (lines == 0) { 1411 if (scr->pcs.visibleoffset == scr->pcs.dispoffset) 1412 return; 1413 1414 scr->pcs.visibleoffset = scr->pcs.dispoffset; 1415 } 1416 else { 1417 int vga_scr_end; 1418 int margin = scr->pcs.type->ncols * 2; 1419 int ul, we, p, st; 1420 1421 vga_scr_end = (scr->pcs.dispoffset + scr->pcs.type->ncols * 1422 scr->pcs.type->nrows * 2); 1423 if (scr->vga_rollover > vga_scr_end + margin) { 1424 ul = vga_scr_end; 1425 we = scr->vga_rollover + scr->pcs.type->ncols * 2; 1426 } else { 1427 ul = 0; 1428 we = 0x8000; 1429 } 1430 p = (scr->pcs.visibleoffset - ul + we) % we + lines * 1431 (scr->pcs.type->ncols * 2); 1432 st = (scr->pcs.dispoffset - ul + we) % we; 1433 if (p < margin) 1434 p = 0; 1435 if (p > st - margin) 1436 p = st; 1437 scr->pcs.visibleoffset = (p + ul) % we; 1438 } 1439 1440 vga_6845_write(vh, startadrh, scr->pcs.visibleoffset >> 9); 1441 vga_6845_write(vh, startadrl, scr->pcs.visibleoffset >> 1); 1442 } 1443 #endif 1444 1445 void 1446 vga_putchar(void *c, int row, int col, u_int uc, long attr) 1447 { 1448 1449 pcdisplay_putchar(c, row, col, uc, attr); 1450 } 1451 1452 #ifdef WSDISPLAY_CUSTOM_BORDER 1453 static int 1454 vga_getborder(struct vga_config *vc, u_int *valuep) 1455 { 1456 struct vga_handle *vh = &vc->hdl; 1457 u_int idx; 1458 u_int8_t value; 1459 1460 if (vh->vh_mono) 1461 return ENODEV; 1462 1463 value = _vga_attr_read(vh, VGA_ATC_OVERSCAN); 1464 for (idx = 0; idx < sizeof(fgansitopc); idx++) { 1465 if (fgansitopc[idx] == value) { 1466 *valuep = idx; 1467 return (0); 1468 } 1469 } 1470 return (EIO); 1471 } 1472 1473 static int 1474 vga_setborder(struct vga_config *vc, u_int value) 1475 { 1476 struct vga_handle *vh = &vc->hdl; 1477 1478 if (vh->vh_mono) 1479 return ENODEV; 1480 if (value >= sizeof(fgansitopc)) 1481 return EINVAL; 1482 1483 _vga_attr_write(vh, VGA_ATC_OVERSCAN, fgansitopc[value]); 1484 return (0); 1485 } 1486 #endif /* WSDISPLAY_CUSTOM_BORDER */ 1487
Indexes created Wed Sep 24 22:09:59 GMT 2025