1 /* $NetBSD: vga_raster.c,v 1.41 2014/07/12 05:30:33 mlelstv Exp $ */ 2 3 /* 4 * Copyright (c) 2001, 2002 Bang Jun-Young 5 * Copyright (c) 2004 Julio M. Merino Vidal 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* 32 * Copyright (c) 1995, 1996 Carnegie-Mellon University. 33 * All rights reserved. 34 * 35 * Author: Chris G. Demetriou 36 * 37 * Permission to use, copy, modify and distribute this software and 38 * its documentation is hereby granted, provided that both the copyright 39 * notice and this permission notice appear in all copies of the 40 * software, derivative works or modified versions, and any portions 41 * thereof, and that both notices appear in supporting documentation. 42 * 43 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 44 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 45 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 46 * 47 * Carnegie Mellon requests users of this software to return to 48 * 49 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 50 * School of Computer Science 51 * Carnegie Mellon University 52 * Pittsburgh PA 15213-3890 53 * 54 * any improvements or extensions that they make and grant Carnegie the 55 * rights to redistribute these changes. 56 */ 57 58 #include <sys/cdefs.h> 59 __KERNEL_RCSID(0, "$NetBSD: vga_raster.c,v 1.41 2014/07/12 05:30:33 mlelstv Exp $"); 60 61 #include "opt_vga.h" 62 #include "opt_wsmsgattrs.h" /* for WSDISPLAY_CUSTOM_OUTPUT */ 63 64 #include <sys/param.h> 65 #include <sys/systm.h> 66 #include <sys/callout.h> 67 #include <sys/kernel.h> 68 #include <sys/device.h> 69 #include <sys/malloc.h> 70 #include <sys/queue.h> 71 #include <sys/bus.h> 72 73 #include <dev/ic/mc6845reg.h> 74 #include <dev/ic/pcdisplayvar.h> 75 #include <dev/ic/vgareg.h> 76 #include <dev/ic/vgavar.h> 77 #include <dev/videomode/videomode.h> 78 79 #include <dev/wscons/wsdisplayvar.h> 80 #include <dev/wscons/wsconsio.h> 81 #include <dev/wsfont/wsfont.h> 82 83 #include <dev/ic/pcdisplay.h> 84 85 int vga_no_builtinfont = 0; 86 87 u_int8_t builtinfont_data[256 * 16]; 88 89 struct wsdisplay_font builtinfont = { 90 "builtin", /* typeface name */ 91 0, /* firstchar */ 92 256, /* numchars */ 93 WSDISPLAY_FONTENC_IBM, /* encoding */ 94 8, /* width */ 95 16, /* height */ 96 1, /* stride */ 97 WSDISPLAY_FONTORDER_L2R, /* bit order */ 98 WSDISPLAY_FONTORDER_L2R, /* byte order */ 99 builtinfont_data /* data */ 100 }; 101 102 struct vga_scrmem { 103 u_int16_t ch; 104 u_int8_t attr; 105 u_int8_t second; /* XXXBJY should be u_int8_t len; */ 106 u_int8_t enc; 107 }; 108 109 #ifdef VGA_CONSOLE_SCREENTYPE 110 #define VGA_SCRMEM_SIZE (80 * 30) 111 #else 112 #define VGA_SCRMEM_SIZE (80 * 25) 113 #endif 114 115 struct vga_scrmem boot_scrmem[VGA_SCRMEM_SIZE]; 116 117 struct vga_raster_font { 118 LIST_ENTRY(vga_raster_font) next; 119 struct wsdisplay_font *font; 120 }; 121 122 struct vgascreen { 123 LIST_ENTRY(vgascreen) next; 124 struct vga_config *cfg; 125 struct vga_handle *hdl; 126 const struct wsscreen_descr *type; 127 128 int active; 129 struct vga_scrmem *mem; 130 int encoding; 131 132 int dispoffset; 133 int mindispoffset; 134 int maxdispoffset; 135 136 int cursoron; /* Is cursor displayed? */ 137 int cursorcol; /* Current cursor column */ 138 int cursorrow; /* Current cursor row */ 139 struct vga_scrmem cursortmp; 140 int cursorstride; 141 142 LIST_HEAD(, vga_raster_font) fontset; 143 }; 144 145 struct vga_moderegs { 146 u_int8_t miscout; /* Misc. output */ 147 u_int8_t crtc[MC6845_NREGS]; /* CRTC controller */ 148 u_int8_t atc[VGA_ATC_NREGS]; /* Attribute controller */ 149 u_int8_t ts[VGA_TS_NREGS]; /* Time sequencer */ 150 u_int8_t gdc[VGA_GDC_NREGS]; /* Graphics display controller */ 151 }; 152 153 static int vgaconsole, vga_console_type, vga_console_attached; 154 static struct vgascreen vga_console_screen; 155 static struct vga_config vga_console_vc; 156 static struct vga_raster_font vga_console_fontset_ascii; 157 static struct videomode vga_console_modes[2] = { 158 /* 640x400 for 80x25, 80x40 and 80x50 modes */ 159 { 160 25175, 640, 664, 760, 800, 400, 409, 411, 450, 0, NULL, 161 }, 162 /* 640x480 for 80x30 mode */ 163 { 164 25175, 640, 664, 760, 800, 480, 491, 493, 525, 0, NULL, 165 } 166 }; 167 168 static void vga_raster_init(struct vga_config *, bus_space_tag_t, 169 bus_space_tag_t); 170 static void vga_raster_init_screen(struct vga_config *, struct vgascreen *, 171 const struct wsscreen_descr *, int, long *); 172 static void vga_raster_setup_font(struct vga_config *, struct vgascreen *); 173 static void vga_setup_regs(struct videomode *, struct vga_moderegs *); 174 static void vga_set_mode(struct vga_handle *, struct vga_moderegs *); 175 static void vga_restore_screen(struct vgascreen *, 176 const struct wsscreen_descr *, struct vga_scrmem *); 177 static void vga_raster_cursor_init(struct vgascreen *, int); 178 static void _vga_raster_putchar(void *, int, int, u_int, long, 179 struct vga_raster_font *); 180 181 static void vga_raster_cursor(void *, int, int, int); 182 static int vga_raster_mapchar(void *, int, u_int *); 183 static void vga_raster_putchar(void *, int, int, u_int, long); 184 static void vga_raster_copycols(void *, int, int, int, int); 185 static void vga_raster_erasecols(void *, int, int, int, long); 186 static void vga_raster_copyrows(void *, int, int, int); 187 static void vga_raster_eraserows(void *, int, int, long); 188 static int vga_raster_allocattr(void *, int, int, int, long *); 189 #ifdef WSDISPLAY_CUSTOM_OUTPUT 190 static void vga_raster_replaceattr(void *, long, long); 191 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 192 193 const struct wsdisplay_emulops vga_raster_emulops = { 194 vga_raster_cursor, 195 vga_raster_mapchar, 196 vga_raster_putchar, 197 vga_raster_copycols, 198 vga_raster_erasecols, 199 vga_raster_copyrows, 200 vga_raster_eraserows, 201 vga_raster_allocattr, 202 #ifdef WSDISPLAY_CUSTOM_OUTPUT 203 vga_raster_replaceattr, 204 #else /* WSDISPLAY_CUSTOM_OUTPUT */ 205 NULL, 206 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 207 }; 208 209 /* 210 * translate WS(=ANSI) color codes to standard pc ones 211 */ 212 static const unsigned char fgansitopc[] = { 213 #ifdef __alpha__ 214 /* 215 * XXX DEC HAS SWITCHED THE CODES FOR BLUE AND RED!!! 216 * XXX We should probably not bother with this 217 * XXX (reinitialize the palette registers). 218 */ 219 FG_BLACK, FG_BLUE, FG_GREEN, FG_CYAN, FG_RED, 220 FG_MAGENTA, FG_BROWN, FG_LIGHTGREY 221 #else 222 FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE, 223 FG_MAGENTA, FG_CYAN, FG_LIGHTGREY 224 #endif 225 }, bgansitopc[] = { 226 #ifdef __alpha__ 227 BG_BLACK, BG_BLUE, BG_GREEN, BG_CYAN, BG_RED, 228 BG_MAGENTA, BG_BROWN, BG_LIGHTGREY 229 #else 230 BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE, 231 BG_MAGENTA, BG_CYAN, BG_LIGHTGREY 232 #endif 233 }; 234 235 const struct wsscreen_descr vga_25lscreen = { 236 "80x25", 80, 25, 237 &vga_raster_emulops, 238 8, 16, 239 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 240 &vga_console_modes[0] 241 }, vga_25lscreen_mono = { 242 "80x25", 80, 25, 243 &vga_raster_emulops, 244 8, 16, 245 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 246 &vga_console_modes[0] 247 }, vga_30lscreen = { 248 "80x30", 80, 30, 249 &vga_raster_emulops, 250 8, 16, 251 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 252 &vga_console_modes[1] 253 }, vga_30lscreen_mono = { 254 "80x30", 80, 30, 255 &vga_raster_emulops, 256 8, 16, 257 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 258 &vga_console_modes[1] 259 }, vga_40lscreen = { 260 "80x40", 80, 40, 261 &vga_raster_emulops, 262 8, 10, 263 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 264 &vga_console_modes[0] 265 }, vga_40lscreen_mono = { 266 "80x40", 80, 40, 267 &vga_raster_emulops, 268 8, 10, 269 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 270 &vga_console_modes[0] 271 }, vga_50lscreen = { 272 "80x50", 80, 50, 273 &vga_raster_emulops, 274 8, 8, 275 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 276 &vga_console_modes[0] 277 }, vga_50lscreen_mono = { 278 "80x50", 80, 50, 279 &vga_raster_emulops, 280 8, 8, 281 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 282 &vga_console_modes[0] 283 }; 284 285 const struct wsscreen_descr *_vga_scrlist[] = { 286 &vga_25lscreen, 287 &vga_30lscreen, 288 &vga_40lscreen, 289 &vga_50lscreen, 290 }, *_vga_scrlist_mono[] = { 291 &vga_25lscreen_mono, 292 &vga_30lscreen_mono, 293 &vga_40lscreen_mono, 294 &vga_50lscreen_mono, 295 }; 296 297 const struct wsscreen_list vga_screenlist = { 298 sizeof(_vga_scrlist) / sizeof(struct wsscreen_descr *), 299 _vga_scrlist 300 }, vga_screenlist_mono = { 301 sizeof(_vga_scrlist_mono) / sizeof(struct wsscreen_descr *), 302 _vga_scrlist_mono 303 }; 304 305 static int vga_raster_ioctl(void *, void *, u_long, void *, int, 306 struct lwp *); 307 static paddr_t vga_raster_mmap(void *, void *, off_t, int); 308 static int vga_raster_alloc_screen(void *, const struct wsscreen_descr *, 309 void **, int *, int *, long *); 310 static void vga_raster_free_screen(void *, void *); 311 static int vga_raster_show_screen(void *, void *, int, 312 void (*)(void *, int, int), void *); 313 static int vga_raster_load_font(void *, void *, struct wsdisplay_font *); 314 315 static void vga_switch_screen(struct vga_config *); 316 static void vga_raster_setscreentype(struct vga_config *, 317 const struct wsscreen_descr *); 318 319 const struct wsdisplay_accessops vga_raster_accessops = { 320 vga_raster_ioctl, 321 vga_raster_mmap, 322 vga_raster_alloc_screen, 323 vga_raster_free_screen, 324 vga_raster_show_screen, 325 vga_raster_load_font, 326 NULL, /* pollc */ 327 NULL, /* scroll */ 328 }; 329 330 int 331 vga_cnattach(bus_space_tag_t iot, bus_space_tag_t memt, int type, int check) 332 { 333 long defattr; 334 const struct wsscreen_descr *scr; 335 #ifdef VGA_CONSOLE_SCREENTYPE 336 const char *typestr = NULL; 337 #endif 338 339 if (check && !vga_common_probe(iot, memt)) 340 return (ENXIO); 341 342 /* set up bus-independent VGA configuration */ 343 vga_raster_init(&vga_console_vc, iot, memt); 344 #ifdef VGA_CONSOLE_SCREENTYPE 345 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 346 &vga_screenlist_mono : &vga_screenlist, VGA_CONSOLE_SCREENTYPE); 347 if (!scr) 348 /* Invalid screen type, continue with the default mode. */ 349 typestr = "80x25"; 350 else if (scr->nrows > 30) 351 /* Unsupported screen type, try 80x30. */ 352 typestr = "80x30"; 353 if (typestr) 354 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 355 &vga_screenlist_mono : &vga_screenlist, typestr); 356 if (scr != vga_console_vc.currenttype) 357 vga_console_vc.currenttype = scr; 358 #else 359 scr = vga_console_vc.currenttype; 360 #endif 361 vga_raster_init_screen(&vga_console_vc, &vga_console_screen, scr, 1, 362 &defattr); 363 364 vga_console_screen.active = 1; 365 vga_console_vc.active = &vga_console_screen; 366 367 wsdisplay_cnattach(scr, &vga_console_screen, 368 vga_console_screen.cursorcol, vga_console_screen.cursorrow, 369 defattr); 370 371 vgaconsole = 1; 372 vga_console_type = type; 373 return (0); 374 } 375 376 static void 377 vga_raster_init(struct vga_config *vc, bus_space_tag_t iot, 378 bus_space_tag_t memt) 379 { 380 struct vga_handle *vh = &vc->hdl; 381 u_int8_t mor; 382 struct vga_raster_font *vf; 383 384 vh->vh_iot = iot; 385 vh->vh_memt = memt; 386 387 if (bus_space_map(vh->vh_iot, 0x3c0, 0x10, 0, &vh->vh_ioh_vga)) 388 panic("vga_raster_init: couldn't map vga io"); 389 390 /* read "misc output register" */ 391 mor = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAR); 392 vh->vh_mono = !(mor & 1); 393 394 if (bus_space_map(vh->vh_iot, (vh->vh_mono ? 0x3b0 : 0x3d0), 0x10, 0, 395 &vh->vh_ioh_6845)) 396 panic("vga_raster_init: couldn't map 6845 io"); 397 398 if (bus_space_map(vh->vh_memt, 0xa0000, 0x20000, 0, &vh->vh_allmemh)) 399 panic("vga_raster_init: couldn't map memory"); 400 401 if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh, 0, 0x10000, 402 &vh->vh_memh)) 403 panic("vga_raster_init: mem subrange failed"); 404 405 /* should only reserve the space (no need to map - save KVM) */ 406 vc->vc_biostag = memt; 407 if (bus_space_map(vc->vc_biostag, 0xc0000, 0x8000, 0, &vc->vc_bioshdl)) 408 vc->vc_biosmapped = 0; 409 else 410 vc->vc_biosmapped = 1; 411 412 vc->nscreens = 0; 413 LIST_INIT(&vc->screens); 414 vc->active = NULL; 415 vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen; 416 callout_init(&vc->vc_switch_callout, 0); 417 418 wsfont_init(); 419 vc->nfonts = 1; 420 LIST_INIT(&vc->vc_fontlist); 421 vf = &vga_console_fontset_ascii; 422 if (vga_no_builtinfont) { 423 struct wsdisplay_font *wf; 424 int cookie; 425 426 /* prefer 8x16 pixel font */ 427 cookie = wsfont_find(NULL, 8, 16, 0, WSDISPLAY_FONTORDER_L2R, 428 0, WSFONT_FIND_BITMAP); 429 if (cookie == -1) 430 cookie = wsfont_find(NULL, 0, 0, 0, 431 WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R, 432 WSFONT_FIND_BITMAP); 433 if (cookie == -1 || wsfont_lock(cookie, &wf)) 434 panic("vga_raster_init: can't load console font"); 435 vf->font = wf; 436 } else { 437 vga_load_builtinfont(vh, builtinfont_data, 0, 256); 438 vf->font = &builtinfont; 439 } 440 LIST_INSERT_HEAD(&vc->vc_fontlist, vf, next); 441 } 442 443 static void 444 vga_raster_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 struct vga_handle *vh; 450 451 scr->cfg = vc; 452 scr->hdl = &vc->hdl; 453 scr->type = type; 454 scr->mindispoffset = 0; 455 scr->maxdispoffset = scr->dispoffset + 456 type->nrows * type->ncols * type->fontheight; 457 vh = &vc->hdl; 458 459 LIST_INIT(&scr->fontset); 460 vga_raster_setup_font(vc, scr); 461 462 if (existing) { 463 int i; 464 465 cpos = vga_6845_read(vh, cursorh) << 8; 466 cpos |= vga_6845_read(vh, cursorl); 467 468 /* make sure we have a valid cursor position */ 469 if (cpos < 0 || cpos >= type->nrows * type->ncols) 470 cpos = 0; 471 472 scr->dispoffset = vga_6845_read(vh, startadrh) << 9; 473 scr->dispoffset |= vga_6845_read(vh, startadrl) << 1; 474 475 /* make sure we have a valid memory offset */ 476 if (scr->dispoffset < scr->mindispoffset || 477 scr->dispoffset > scr->maxdispoffset) 478 scr->dispoffset = scr->mindispoffset; 479 480 scr->mem = boot_scrmem; 481 scr->active = 1; 482 483 /* Save the current screen to memory. XXXBJY assume 80x25 */ 484 for (i = 0; i < 80 * 25; i++) { 485 scr->mem[i].ch = bus_space_read_1(vh->vh_memt, 486 vh->vh_allmemh, 0x18000 + i * 2); 487 scr->mem[i].attr = bus_space_read_1(vh->vh_memt, 488 vh->vh_allmemh, 0x18000 + i * 2 + 1); 489 scr->mem[i].enc = scr->encoding; 490 } 491 492 vga_raster_setscreentype(vc, type); 493 494 /* Clear the entire screen. */ 495 vga_gdc_write(vh, mode, 0x02); 496 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 497 0x4000); 498 499 vga_restore_screen(scr, type, scr->mem); 500 } else { 501 cpos = 0; 502 scr->dispoffset = scr->mindispoffset; 503 scr->mem = NULL; 504 scr->active = 0; 505 } 506 507 scr->cursorrow = cpos / type->ncols; 508 scr->cursorcol = cpos % type->ncols; 509 vga_raster_cursor_init(scr, existing); 510 511 #ifdef __alpha__ 512 if (!vc->hdl.vh_mono) 513 /* 514 * DEC firmware uses a blue background. 515 */ 516 res = vga_raster_allocattr(scr, WSCOL_WHITE, WSCOL_BLUE, 517 WSATTR_WSCOLORS, attrp); 518 else 519 #endif 520 res = vga_raster_allocattr(scr, 0, 0, 0, attrp); 521 #ifdef DIAGNOSTIC 522 if (res) 523 panic("vga_raster_init_screen: attribute botch"); 524 #endif 525 526 vc->nscreens++; 527 LIST_INSERT_HEAD(&vc->screens, scr, next); 528 } 529 530 void 531 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, 532 bus_space_tag_t memt, int type, int quirks, 533 const struct vga_funcs *vf) 534 { 535 int console; 536 struct vga_config *vc; 537 struct wsemuldisplaydev_attach_args aa; 538 539 console = vga_is_console(iot, type); 540 541 if (console) { 542 vc = &vga_console_vc; 543 vga_console_attached = 1; 544 } else { 545 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK); 546 vga_raster_init(vc, iot, memt); 547 } 548 549 vc->vc_type = type; 550 vc->vc_funcs = vf; 551 552 sc->sc_vc = vc; 553 vc->softc = sc; 554 555 aa.console = console; 556 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); 557 aa.accessops = &vga_raster_accessops; 558 aa.accesscookie = vc; 559 560 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 561 } 562 563 int 564 vga_cndetach(void) 565 { 566 struct vga_config *vc; 567 struct vga_handle *vh; 568 569 vc = &vga_console_vc; 570 vh = &vc->hdl; 571 572 if (vgaconsole) { 573 wsdisplay_cndetach(); 574 575 bus_space_unmap(vh->vh_iot, vh->vh_ioh_vga, 0x10); 576 bus_space_unmap(vh->vh_iot, vh->vh_ioh_6845, 0x10); 577 578 vga_console_attached = 0; 579 vgaconsole = 0; 580 581 return 1; 582 } 583 584 return 0; 585 } 586 587 int 588 vga_is_console(bus_space_tag_t iot, int type) 589 { 590 if (vgaconsole && 591 !vga_console_attached && 592 iot == vga_console_vc.hdl.vh_iot && 593 (vga_console_type == -1 || (type == vga_console_type))) 594 return (1); 595 return (0); 596 } 597 598 static int 599 vga_get_video(struct vga_config *vc) 600 { 601 602 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0; 603 } 604 605 static void 606 vga_set_video(struct vga_config *vc, int state) 607 { 608 int val; 609 610 vga_ts_write(&vc->hdl, syncreset, 0x01); 611 if (state) { /* unblank screen */ 612 val = vga_ts_read(&vc->hdl, mode); 613 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK); 614 #ifndef VGA_NO_VBLANK 615 val = vga_6845_read(&vc->hdl, mode); 616 vga_6845_write(&vc->hdl, mode, val | 0x80); 617 #endif 618 } else { /* blank screen */ 619 val = vga_ts_read(&vc->hdl, mode); 620 vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK); 621 #ifndef VGA_NO_VBLANK 622 val = vga_6845_read(&vc->hdl, mode); 623 vga_6845_write(&vc->hdl, mode, val & ~0x80); 624 #endif 625 } 626 vga_ts_write(&vc->hdl, syncreset, 0x03); 627 } 628 629 int 630 vga_raster_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 631 struct lwp *l) 632 { 633 struct vga_config *vc = v; 634 const struct vga_funcs *vf = vc->vc_funcs; 635 636 switch (cmd) { 637 case WSDISPLAYIO_GTYPE: 638 *(int *)data = vc->vc_type; 639 return 0; 640 641 case WSDISPLAYIO_GINFO: { 642 struct wsdisplay_fbinfo *fbi = data; 643 const struct wsscreen_descr *wd = vc->currenttype; 644 const struct videomode *vm = wd->modecookie; 645 fbi->width = vm->hdisplay; 646 fbi->height = vm->vdisplay; 647 fbi->depth = 24; /* xxx: ? */ 648 fbi->cmsize = 256; /* xxx: from palette */ 649 return 0; 650 } 651 652 case WSDISPLAYIO_GVIDEO: 653 *(int *)data = (vga_get_video(vc) ? 654 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); 655 return 0; 656 657 case WSDISPLAYIO_SVIDEO: 658 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 659 return 0; 660 661 case WSDISPLAYIO_GETCMAP: 662 case WSDISPLAYIO_PUTCMAP: 663 case WSDISPLAYIO_GCURPOS: 664 case WSDISPLAYIO_SCURPOS: 665 case WSDISPLAYIO_GCURMAX: 666 case WSDISPLAYIO_GCURSOR: 667 case WSDISPLAYIO_SCURSOR: 668 #ifdef DIAGNOSTIC 669 printf("%s: 0x%lx unsupported\n", __func__, cmd); 670 #endif 671 /* NONE of these operations are by the generic VGA driver. */ 672 return EPASSTHROUGH; 673 } 674 675 if (vc->vc_funcs == NULL) { 676 #ifdef DIAGNOSTIC 677 printf("%s: no vc_funcs\n", __func__); 678 #endif 679 return EPASSTHROUGH; 680 } 681 682 if (vf->vf_ioctl == NULL) { 683 #ifdef DIAGNOSTIC 684 printf("%s: no vf_ioctl\n", __func__); 685 #endif 686 return EPASSTHROUGH; 687 } 688 689 return ((*vf->vf_ioctl)(v, cmd, data, flag, l)); 690 } 691 692 static paddr_t 693 vga_raster_mmap(void *v, void *vs, off_t offset, int prot) 694 { 695 struct vga_config *vc = v; 696 const struct vga_funcs *vf = vc->vc_funcs; 697 698 if (vc->vc_funcs == NULL) 699 return (-1); 700 701 if (vf->vf_mmap == NULL) 702 return (-1); 703 704 return ((*vf->vf_mmap)(v, offset, prot)); 705 } 706 707 static int 708 vga_raster_alloc_screen(void *v, const struct wsscreen_descr *type, 709 void **cookiep, int *curxp, int *curyp, long *defattrp) 710 { 711 struct vga_config *vc = v; 712 struct vgascreen *scr; 713 714 if (vc->nscreens == 1) { 715 vc->screens.lh_first->mem = boot_scrmem; 716 } 717 718 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 719 vga_raster_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 720 721 if (vc->nscreens == 1) { 722 scr->active = 1; 723 vc->active = scr; 724 vc->currenttype = type; 725 } else { 726 scr->mem = malloc(sizeof(struct vga_scrmem) * 727 type->ncols * type->nrows, M_DEVBUF, M_WAITOK); 728 vga_raster_eraserows(scr, 0, type->nrows, *defattrp); 729 } 730 731 *cookiep = scr; 732 *curxp = scr->cursorcol; 733 *curyp = scr->cursorrow; 734 735 return (0); 736 } 737 738 static void 739 vga_raster_free_screen(void *v, void *cookie) 740 { 741 struct vgascreen *vs = cookie; 742 struct vga_config *vc = vs->cfg; 743 744 LIST_REMOVE(vs, next); 745 vc->nscreens--; 746 if (vs != &vga_console_screen) 747 free(vs, M_DEVBUF); 748 else 749 panic("vga_raster_free_screen: console"); 750 751 if (vc->active == vs) 752 vc->active = 0; 753 } 754 755 static int 756 vga_raster_show_screen(void *v, void *cookie, int waitok, 757 void (*cb)(void *, int, int), void *cbarg) 758 { 759 struct vgascreen *scr = cookie, *oldscr; 760 struct vga_config *vc = scr->cfg; 761 762 oldscr = vc->active; /* can be NULL! */ 763 if (scr == oldscr) { 764 return (0); 765 } 766 767 vc->wantedscreen = cookie; 768 vc->switchcb = cb; 769 vc->switchcbarg = cbarg; 770 if (cb) { 771 callout_reset(&vc->vc_switch_callout, 0, 772 (void(*)(void *))vga_switch_screen, vc); 773 return (EAGAIN); 774 } 775 776 vga_switch_screen(vc); 777 return (0); 778 } 779 780 static void 781 vga_switch_screen(struct vga_config *vc) 782 { 783 struct vgascreen *scr, *oldscr; 784 struct vga_handle *vh = &vc->hdl; 785 const struct wsscreen_descr *type; 786 787 scr = vc->wantedscreen; 788 if (!scr) { 789 printf("vga_switch_screen: disappeared\n"); 790 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 791 return; 792 } 793 type = scr->type; 794 oldscr = vc->active; /* can be NULL! */ 795 #ifdef DIAGNOSTIC 796 if (oldscr) { 797 if (!oldscr->active) 798 panic("vga_raster_show_screen: not active"); 799 if (oldscr->type != vc->currenttype) 800 panic("vga_raster_show_screen: bad type"); 801 } 802 #endif 803 if (scr == oldscr) { 804 return; 805 } 806 #ifdef DIAGNOSTIC 807 if (scr->active) 808 panic("vga_raster_show_screen: active"); 809 #endif 810 811 if (oldscr) 812 oldscr->active = 0; 813 814 if (vc->currenttype != type) { 815 vga_raster_setscreentype(vc, type); 816 vc->currenttype = type; 817 } 818 819 scr->dispoffset = scr->mindispoffset; 820 821 if (!oldscr || (scr->dispoffset != oldscr->dispoffset)) { 822 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 823 vga_6845_write(vh, startadrl, scr->dispoffset); 824 } 825 826 /* Clear the entire screen. */ 827 vga_gdc_write(vh, mode, 0x02); 828 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x2000); 829 830 scr->active = 1; 831 vga_restore_screen(scr, type, scr->mem); 832 833 vc->active = scr; 834 835 vga_raster_cursor(scr, scr->cursoron, scr->cursorrow, scr->cursorcol); 836 837 vc->wantedscreen = 0; 838 if (vc->switchcb) 839 (*vc->switchcb)(vc->switchcbarg, 0, 0); 840 } 841 842 static int 843 vga_raster_load_font(void *v, void *id, 844 struct wsdisplay_font *data) 845 { 846 /* XXX */ 847 printf("vga_raster_load_font: called\n"); 848 849 return (0); 850 } 851 852 static void 853 vga_raster_setup_font(struct vga_config *vc, struct vgascreen *scr) 854 { 855 struct vga_raster_font *vf; 856 struct wsdisplay_font *wf; 857 int cookie; 858 859 LIST_FOREACH(vf, &vc->vc_fontlist, next) { 860 if (wsfont_matches(vf->font, 0, 0, scr->type->fontheight, 0, 861 WSFONT_FIND_BITMAP)) { 862 scr->encoding = vf->font->encoding; 863 LIST_INSERT_HEAD(&scr->fontset, vf, next); 864 return; 865 } 866 } 867 868 cookie = wsfont_find(NULL, 0, scr->type->fontheight, 0, 869 WSDISPLAY_FONTORDER_L2R, 0, WSFONT_FIND_BITMAP); 870 if (cookie == -1) 871 return; 872 873 if (wsfont_lock(cookie, &wf)) 874 return; 875 876 vf = malloc(sizeof(struct vga_raster_font), M_DEVBUF, M_NOWAIT); 877 if (!vf) { 878 wsfont_unlock(cookie); 879 return; 880 } 881 882 vf->font = wf; 883 scr->encoding = vf->font->encoding; 884 LIST_INSERT_HEAD(&scr->fontset, vf, next); 885 } 886 887 static void 888 vga_setup_regs(struct videomode *mode, struct vga_moderegs *regs) 889 { 890 int i; 891 int depth = 4; /* XXXBJY hardcoded for now */ 892 const u_int8_t palette[] = { 893 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 894 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f 895 }; 896 897 /* 898 * Compute hsync and vsync polarity. 899 */ 900 if ((mode->flags & (VID_PHSYNC | VID_NHSYNC)) 901 && (mode->flags & (VID_PVSYNC | VID_NVSYNC))) { 902 regs->miscout = 0x23; 903 if (mode->flags & VID_NHSYNC) 904 regs->miscout |= 0x40; 905 if (mode->flags & VID_NVSYNC) 906 regs->miscout |= 0x80; 907 } else { 908 if (mode->flags & VID_DBLSCAN) 909 mode->vdisplay *= 2; 910 if (mode->vdisplay < 400) 911 regs->miscout = 0xa3; 912 else if (mode->vdisplay < 480) 913 regs->miscout = 0x63; 914 else if (mode->vdisplay < 768) 915 regs->miscout = 0xe3; 916 else 917 regs->miscout = 0x23; 918 } 919 920 /* 921 * Time sequencer 922 */ 923 if (depth == 4) 924 regs->ts[0] = 0x02; 925 else 926 regs->ts[0] = 0x00; 927 if (mode->flags & VID_CLKDIV2) 928 regs->ts[1] = 0x09; 929 else 930 regs->ts[1] = 0x01; 931 regs->ts[2] = 0x0f; 932 regs->ts[3] = 0x00; 933 if (depth < 8) 934 regs->ts[4] = 0x06; 935 else 936 regs->ts[4] = 0x0e; 937 938 /* 939 * CRTC controller 940 */ 941 regs->crtc[0] = (mode->htotal >> 3) - 5; 942 regs->crtc[1] = (mode->hdisplay >> 3) - 1; 943 regs->crtc[2] = (mode->hsync_start >> 3) - 1; 944 regs->crtc[3] = (((mode->hsync_end >> 3) - 1) & 0x1f) | 0x80; 945 regs->crtc[4] = mode->hsync_start >> 3; 946 regs->crtc[5] = ((((mode->hsync_end >> 3) - 1) & 0x20) << 2) 947 | (((mode->hsync_end >> 3)) & 0x1f); 948 regs->crtc[6] = (mode->vtotal - 2) & 0xff; 949 regs->crtc[7] = (((mode->vtotal - 2) & 0x100) >> 8) 950 | (((mode->vdisplay - 1) & 0x100) >> 7) 951 | ((mode->vsync_start & 0x100) >> 6) 952 | (((mode->vsync_start - 1) & 0x100) >> 5) 953 | 0x10 954 | (((mode->vtotal - 2) & 0x200) >> 4) 955 | (((mode->vdisplay - 1) & 0x200) >> 3) 956 | ((mode->vsync_start & 0x200) >> 2); 957 regs->crtc[8] = 0x00; 958 regs->crtc[9] = (((mode->vsync_start - 1) & 0x200) >> 4) | 0x40; 959 if (mode->flags & VID_DBLSCAN) 960 regs->crtc[9] |= 0x80; 961 regs->crtc[10] = 0x00; 962 regs->crtc[11] = 0x00; 963 regs->crtc[12] = 0x00; 964 regs->crtc[13] = 0x00; 965 regs->crtc[14] = 0x00; 966 regs->crtc[15] = 0x00; 967 regs->crtc[16] = mode->vsync_start & 0xff; 968 regs->crtc[17] = (mode->vsync_end & 0x0f) | 0x20; 969 regs->crtc[18] = (mode->vdisplay - 1) & 0xff; 970 regs->crtc[19] = mode->hdisplay >> 4; /* XXXBJY */ 971 regs->crtc[20] = 0x00; 972 regs->crtc[21] = (mode->vsync_start - 1) & 0xff; 973 regs->crtc[22] = (mode->vsync_end - 1) & 0xff; 974 if (depth < 8) 975 regs->crtc[23] = 0xe3; 976 else 977 regs->crtc[23] = 0xc3; 978 regs->crtc[24] = 0xff; 979 980 /* 981 * Graphics display controller 982 */ 983 regs->gdc[0] = 0x00; 984 regs->gdc[1] = 0x00; 985 regs->gdc[2] = 0x00; 986 regs->gdc[3] = 0x00; 987 regs->gdc[4] = 0x00; 988 if (depth == 4) 989 regs->gdc[5] = 0x02; 990 else 991 regs->gdc[5] = 0x40; 992 regs->gdc[6] = 0x01; 993 regs->gdc[7] = 0x0f; 994 regs->gdc[8] = 0xff; 995 996 /* 997 * Attribute controller 998 */ 999 /* Set palette registers. */ 1000 for (i = 0; i < 16; i++) 1001 regs->atc[i] = palette[i]; 1002 if (depth == 4) 1003 regs->atc[16] = 0x01; /* XXXBJY was 0x81 in XFree86 */ 1004 else 1005 regs->atc[16] = 0x41; 1006 regs->atc[17] = 0x00; /* XXXBJY just a guess */ 1007 regs->atc[18] = 0x0f; 1008 regs->atc[19] = 0x00; 1009 regs->atc[20] = 0x00; 1010 } 1011 1012 static void 1013 vga_set_mode(struct vga_handle *vh, struct vga_moderegs *regs) 1014 { 1015 int i; 1016 1017 /* Disable display. */ 1018 vga_ts_write(vh, mode, vga_ts_read(vh, mode) | VGA_TS_MODE_BLANK); 1019 1020 /* Write misc output register. */ 1021 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAW, 1022 regs->miscout); 1023 1024 /* Set synchronous reset. */ 1025 vga_ts_write(vh, syncreset, 0x01); 1026 vga_ts_write(vh, mode, regs->ts[1] | VGA_TS_MODE_BLANK); 1027 for (i = 2; i < VGA_TS_NREGS; i++) 1028 _vga_ts_write(vh, i, regs->ts[i]); 1029 /* Clear synchronous reset. */ 1030 vga_ts_write(vh, syncreset, 0x03); 1031 1032 /* Unprotect CRTC registers 0-7. */ 1033 vga_6845_write(vh, vsynce, vga_6845_read(vh, vsynce) & ~0x80); 1034 /* Write CRTC registers. */ 1035 for (i = 0; i < MC6845_NREGS; i++) 1036 _vga_6845_write(vh, i, regs->crtc[i]); 1037 1038 /* Write graphics display registers. */ 1039 for (i = 0; i < VGA_GDC_NREGS; i++) 1040 _vga_gdc_write(vh, i, regs->gdc[i]); 1041 1042 /* Write attribute controller registers. */ 1043 for (i = 0; i < VGA_ATC_NREGS; i++) 1044 _vga_attr_write(vh, i, regs->atc[i]); 1045 1046 /* Enable display. */ 1047 vga_ts_write(vh, mode, vga_ts_read(vh, mode) & ~VGA_TS_MODE_BLANK); 1048 } 1049 1050 static void 1051 vga_raster_cursor_init(struct vgascreen *scr, int existing) 1052 { 1053 int off; 1054 1055 if (existing) { 1056 /* 1057 * This is the first screen. At this point, scr->active is 1058 * false, so we can't use vga_raster_cursor() to do this. 1059 */ 1060 off = (scr->cursorrow * scr->type->ncols + scr->cursorcol) + 1061 scr->dispoffset / 8; 1062 1063 scr->cursortmp = scr->mem[off]; 1064 vga_raster_putchar(scr, scr->cursorrow, scr->cursorcol, 1065 scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); 1066 } else { 1067 scr->cursortmp.ch = 0; 1068 scr->cursortmp.attr = 0; 1069 scr->cursortmp.second = 0; 1070 scr->cursortmp.enc = scr->encoding; 1071 } 1072 1073 scr->cursoron = 1; 1074 } 1075 1076 static void 1077 vga_raster_cursor(void *id, int on, int row, int col) 1078 { 1079 struct vgascreen *scr = id; 1080 int off, tmp; 1081 1082 /* Remove old cursor image */ 1083 if (scr->cursoron) { 1084 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1085 if (scr->active) { 1086 tmp = scr->encoding; 1087 scr->encoding = scr->cursortmp.enc; 1088 if (scr->cursortmp.second) 1089 vga_raster_putchar(id, scr->cursorrow, 1090 scr->cursorcol - 1, scr->cursortmp.ch, 1091 scr->cursortmp.attr); 1092 else 1093 vga_raster_putchar(id, scr->cursorrow, 1094 scr->cursorcol, scr->cursortmp.ch, 1095 scr->cursortmp.attr); 1096 scr->encoding = tmp; 1097 } 1098 } 1099 1100 scr->cursorrow = row; 1101 scr->cursorcol = col; 1102 1103 if ((scr->cursoron = on) == 0) 1104 return; 1105 1106 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1107 scr->cursortmp = scr->mem[off]; 1108 if (scr->active) { 1109 tmp = scr->encoding; 1110 scr->encoding = scr->cursortmp.enc; 1111 if (scr->cursortmp.second) 1112 vga_raster_putchar(id, scr->cursorrow, 1113 scr->cursorcol - 1, scr->cursortmp.ch, 1114 scr->cursortmp.attr ^ 0x77); 1115 else 1116 vga_raster_putchar(id, scr->cursorrow, 1117 scr->cursorcol, scr->cursortmp.ch, 1118 scr->cursortmp.attr ^ 0x77); 1119 scr->encoding = tmp; 1120 } 1121 } 1122 1123 static int 1124 vga_raster_mapchar(void *id, int uni, u_int *index) 1125 { 1126 struct vgascreen *scr = id; 1127 1128 if (scr->encoding == WSDISPLAY_FONTENC_IBM) 1129 return pcdisplay_mapchar(id, uni, index); 1130 else { 1131 *index = uni; 1132 return 5; 1133 } 1134 } 1135 1136 static void 1137 vga_raster_putchar(void *id, int row, int col, u_int c, long attr) 1138 { 1139 struct vgascreen *scr = id; 1140 size_t off; 1141 struct vga_raster_font *fs; 1142 u_int tmp_ch; 1143 1144 off = row * scr->type->ncols + col; 1145 1146 if (__predict_false(off >= (scr->type->ncols * scr->type->nrows))) 1147 return; 1148 1149 LIST_FOREACH(fs, &scr->fontset, next) { 1150 if ((scr->encoding == fs->font->encoding) && 1151 (c >= fs->font->firstchar) && 1152 (c < fs->font->firstchar + fs->font->numchars) && 1153 (scr->type->fontheight == fs->font->fontheight)) { 1154 if (scr->active) { 1155 tmp_ch = c - fs->font->firstchar; 1156 _vga_raster_putchar(scr, row, col, tmp_ch, 1157 attr, fs); 1158 } 1159 1160 scr->mem[off].ch = c; 1161 scr->mem[off].attr = attr; 1162 scr->mem[off].second = 0; 1163 scr->mem[off].enc = fs->font->encoding; 1164 1165 if (fs->font->stride == 2) { 1166 scr->mem[off + 1].ch = c; 1167 scr->mem[off + 1].attr = attr; 1168 scr->mem[off + 1].second = 1; 1169 scr->mem[off + 1].enc = fs->font->encoding; 1170 } 1171 1172 return; 1173 } 1174 } 1175 1176 /* 1177 * No match found. 1178 */ 1179 if (scr->active) 1180 /* 1181 * Put a single width space character no matter what the 1182 * actual width of the character is. 1183 */ 1184 _vga_raster_putchar(scr, row, col, ' ', attr, 1185 &vga_console_fontset_ascii); 1186 scr->mem[off].ch = c; 1187 scr->mem[off].attr = attr; 1188 scr->mem[off].second = 0; 1189 scr->mem[off].enc = scr->encoding; 1190 } 1191 1192 static void 1193 _vga_raster_putchar(void *id, int row, int col, u_int c, long attr, 1194 struct vga_raster_font *fs) 1195 { 1196 struct vgascreen *scr = id; 1197 struct vga_handle *vh = scr->hdl; 1198 bus_space_tag_t memt = vh->vh_memt; 1199 bus_space_handle_t memh = vh->vh_memh; 1200 int i; 1201 int rasoff, rasoff2; 1202 int fheight = scr->type->fontheight; 1203 volatile u_int8_t pattern; 1204 u_int8_t fgcolor, bgcolor; 1205 1206 rasoff = scr->dispoffset + row * scr->type->ncols * fheight + col; 1207 rasoff2 = rasoff; 1208 1209 #if 0 1210 bgcolor = bgansitopc[attr >> 4]; 1211 fgcolor = fgansitopc[attr & 0x0f]; 1212 #else 1213 bgcolor = ((attr >> 4) & 0x0f); 1214 fgcolor = attr & 0x0f; 1215 #endif 1216 1217 if (fs->font->stride == 1) { 1218 /* Paint background. */ 1219 vga_gdc_write(vh, mode, 0x02); 1220 for (i = 0; i < fheight; i++) { 1221 bus_space_write_1(memt, memh, rasoff, bgcolor); 1222 rasoff += scr->type->ncols; 1223 } 1224 1225 /* Draw a single width character. */ 1226 vga_gdc_write(vh, mode, 0x03); 1227 vga_gdc_write(vh, setres, fgcolor); 1228 for (i = 0; i < fheight; i++) { 1229 pattern = ((u_int8_t *)fs->font->data)[c * fheight + i]; 1230 /* When pattern is 0, skip output for speed-up. */ 1231 if (pattern != 0) { 1232 bus_space_read_1(memt, memh, rasoff2); 1233 bus_space_write_1(memt, memh, rasoff2, pattern); 1234 } 1235 rasoff2 += scr->type->ncols; 1236 } 1237 } else if (fs->font->stride == 2) { 1238 /* Paint background. */ 1239 vga_gdc_write(vh, mode, 0x02); 1240 for (i = 0; i < fheight; i++) { 1241 bus_space_write_1(memt, memh, rasoff, bgcolor); 1242 bus_space_write_1(memt, memh, rasoff + 1, bgcolor); 1243 rasoff += scr->type->ncols; 1244 } 1245 1246 /* Draw a double width character. */ 1247 vga_gdc_write(vh, mode, 0x03); 1248 vga_gdc_write(vh, setres, fgcolor); 1249 for (i = 0; i < fheight; i++) { 1250 pattern = ((u_int8_t *)fs->font->data) 1251 [(c * fheight + i) * 2]; 1252 if (pattern != 0) { 1253 bus_space_read_1(memt, memh, rasoff2); 1254 bus_space_write_1(memt, memh, rasoff2, pattern); 1255 } 1256 pattern = ((u_int8_t *)fs->font->data) 1257 [(c * fheight + i) * 2 + 1]; 1258 if (pattern != 0) { 1259 rasoff2++; 1260 bus_space_read_1(memt, memh, rasoff2); 1261 bus_space_write_1(memt, memh, rasoff2, pattern); 1262 rasoff2--; 1263 } 1264 rasoff2 += scr->type->ncols; 1265 } 1266 } 1267 } 1268 1269 static void 1270 vga_raster_copycols(void *id, int row, int srccol, int dstcol, int ncols) 1271 { 1272 struct vgascreen *scr = id; 1273 struct vga_handle *vh = scr->hdl; 1274 bus_space_tag_t memt = vh->vh_memt; 1275 bus_space_handle_t memh = vh->vh_memh; 1276 bus_size_t srcoff, dstoff; 1277 bus_size_t rassrcoff, rasdstoff; 1278 int i; 1279 int fheight = scr->type->fontheight; 1280 1281 srcoff = row * scr->type->ncols + srccol; 1282 dstoff = row * scr->type->ncols + dstcol; 1283 rassrcoff = scr->dispoffset + row * scr->type->ncols * fheight + srccol; 1284 rasdstoff = scr->dispoffset + row * scr->type->ncols * fheight + dstcol; 1285 1286 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1287 ncols * sizeof(struct vga_scrmem)); 1288 1289 vga_gdc_write(vh, mode, 0x01); 1290 if (scr->active) { 1291 for (i = 0; i < fheight; i++) { 1292 bus_space_copy_region_1(memt, memh, 1293 rassrcoff + i * scr->type->ncols, memh, 1294 rasdstoff + i * scr->type->ncols, ncols); 1295 } 1296 } 1297 } 1298 1299 static void 1300 vga_raster_erasecols(void *id, int row, int startcol, int ncols, long fillattr) 1301 { 1302 struct vgascreen *scr = id; 1303 int i; 1304 1305 if (scr->active == 0) 1306 return; 1307 1308 for (i = startcol; i < startcol + ncols; i++) 1309 vga_raster_putchar(id, row, i, ' ', fillattr); 1310 } 1311 1312 static void 1313 vga_raster_copyrows(void *id, int srcrow, int dstrow, int nrows) 1314 { 1315 struct vgascreen *scr = id; 1316 struct vga_handle *vh = scr->hdl; 1317 bus_space_tag_t memt = vh->vh_memt; 1318 bus_space_handle_t memh = vh->vh_memh; 1319 int ncols; 1320 bus_size_t srcoff, dstoff; 1321 bus_size_t rassrcoff, rasdstoff; 1322 int fheight; 1323 1324 ncols = scr->type->ncols; 1325 fheight = scr->type->fontheight; 1326 1327 srcoff = srcrow * ncols; 1328 dstoff = dstrow * ncols; 1329 rassrcoff = srcoff * fheight; 1330 rasdstoff = dstoff * fheight; 1331 1332 if (scr->active) { 1333 vga_gdc_write(vh, mode, 0x01); 1334 if (dstrow == 0 && (srcrow + nrows == scr->type->nrows)) { 1335 int cursoron = scr->cursoron; 1336 1337 if (cursoron) 1338 /* Disable cursor. */ 1339 vga_raster_cursor(scr, 0, 1340 scr->cursorrow, scr->cursorcol); 1341 1342 /* scroll up whole screen */ 1343 if ((scr->dispoffset + srcrow * ncols * fheight) 1344 <= scr->maxdispoffset) 1345 scr->dispoffset += srcrow * ncols * fheight; 1346 else { 1347 bus_space_copy_region_1(memt, memh, 1348 scr->dispoffset + rassrcoff, 1349 memh, scr->mindispoffset, 1350 nrows * ncols * fheight); 1351 scr->dispoffset = scr->mindispoffset; 1352 } 1353 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 1354 vga_6845_write(vh, startadrl, scr->dispoffset); 1355 1356 if (cursoron) 1357 /* Enable cursor. */ 1358 vga_raster_cursor(scr, 1, scr->cursorrow, 1359 scr->cursorcol); 1360 } else 1361 bus_space_copy_region_1(memt, memh, 1362 scr->dispoffset + rassrcoff, memh, 1363 scr->dispoffset + rasdstoff, 1364 nrows * ncols * fheight); 1365 } 1366 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1367 nrows * ncols * sizeof(struct vga_scrmem)); 1368 } 1369 1370 static void 1371 vga_raster_eraserows(void *id, int startrow, int nrows, long fillattr) 1372 { 1373 struct vgascreen *scr = id; 1374 struct vga_handle *vh = scr->hdl; 1375 bus_space_tag_t memt = vh->vh_memt; 1376 bus_space_handle_t memh = vh->vh_memh; 1377 bus_size_t off, count; 1378 bus_size_t rasoff, rascount; 1379 int i; 1380 1381 off = startrow * scr->type->ncols; 1382 count = nrows * scr->type->ncols; 1383 rasoff = off * scr->type->fontheight; 1384 rascount = count * scr->type->fontheight; 1385 1386 if (scr->active) { 1387 u_int8_t bgcolor = (fillattr >> 4) & 0x0F; 1388 1389 /* Paint background. */ 1390 vga_gdc_write(vh, mode, 0x02); 1391 if (scr->type->ncols % 4 == 0) { 1392 u_int32_t fill = bgcolor | (bgcolor << 8) | 1393 (bgcolor << 16) | (bgcolor << 24); 1394 /* We can speed up I/O */ 1395 for (i = rasoff; i < rasoff + rascount; i += 4) 1396 bus_space_write_4(memt, memh, 1397 scr->dispoffset + i, fill); 1398 } else { 1399 u_int16_t fill = bgcolor | (bgcolor << 8); 1400 for (i = rasoff; i < rasoff + rascount; i += 2) 1401 bus_space_write_2(memt, memh, 1402 scr->dispoffset + i, fill); 1403 } 1404 } 1405 for (i = 0; i < count; i++) { 1406 scr->mem[off + i].ch = ' '; 1407 scr->mem[off + i].attr = fillattr; 1408 scr->mem[off + i].second = 0; 1409 scr->mem[off + i].enc = scr->encoding; 1410 } 1411 } 1412 1413 static int 1414 vga_raster_allocattr(void *id, int fg, int bg, int flags, long *attrp) 1415 { 1416 struct vgascreen *scr = id; 1417 struct vga_config *vc = scr->cfg; 1418 1419 if (__predict_false((unsigned int)fg >= sizeof(fgansitopc) || 1420 (unsigned int)bg >= sizeof(bgansitopc))) 1421 return (EINVAL); 1422 1423 if (vc->hdl.vh_mono) { 1424 if (flags & WSATTR_WSCOLORS) 1425 return (EINVAL); 1426 if (flags & WSATTR_REVERSE) 1427 *attrp = 0x70; 1428 else 1429 *attrp = 0x07; 1430 if (flags & WSATTR_UNDERLINE) 1431 *attrp |= FG_UNDERLINE; 1432 if (flags & WSATTR_HILIT) 1433 *attrp |= FG_INTENSE; 1434 } else { 1435 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1436 return (EINVAL); 1437 if (flags & WSATTR_WSCOLORS) 1438 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1439 else 1440 *attrp = 7; 1441 if (flags & WSATTR_HILIT) 1442 *attrp += 8; 1443 } 1444 if (flags & WSATTR_BLINK) 1445 *attrp |= FG_BLINK; 1446 return (0); 1447 } 1448 1449 static void 1450 vga_restore_screen(struct vgascreen *scr, 1451 const struct wsscreen_descr *type, struct vga_scrmem *mem) 1452 { 1453 int i, j, off, tmp; 1454 1455 tmp = scr->encoding; 1456 for (i = 0; i < type->nrows; i++) { 1457 for (j = 0; j < type->ncols; j++) { 1458 off = i * type->ncols + j; 1459 if (mem[off].second != 1) { 1460 scr->encoding = mem[off].enc; 1461 vga_raster_putchar(scr, i, j, mem[off].ch, 1462 mem[off].attr); 1463 } 1464 } 1465 } 1466 scr->encoding = tmp; 1467 } 1468 1469 static void 1470 vga_raster_setscreentype(struct vga_config *vc, 1471 const struct wsscreen_descr *type) 1472 { 1473 struct vga_handle *vh = &vc->hdl; 1474 struct vga_moderegs moderegs; 1475 1476 vga_setup_regs((struct videomode *)type->modecookie, &moderegs); 1477 vga_set_mode(vh, &moderegs); 1478 } 1479 1480 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1481 static void 1482 vga_raster_replaceattr(void *id, long oldattr, long newattr) 1483 { 1484 struct vgascreen *scr = id; 1485 const struct wsscreen_descr *type = scr->type; 1486 int off; 1487 1488 for (off = 0; off < type->nrows * type->ncols; off++) { 1489 if (scr->mem[off].attr == oldattr) 1490 scr->mem[off].attr = newattr; 1491 } 1492 1493 /* Repaint the whole screen, if needed */ 1494 if (scr->active) 1495 vga_restore_screen(scr, type, scr->mem); 1496 } 1497 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 1498 1499 void 1500 vga_resume(struct vga_softc *sc) 1501 { 1502 #ifdef VGA_RESET_ON_RESUME 1503 vga_initregs(&sc->sc_vc->hdl); 1504 #endif 1505 } 1506