vga_raster.c revision 1.48
1 /* $NetBSD: vga_raster.c,v 1.48 2020/04/24 22:31:36 ad 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 (at) 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 1.48 2020/04/24 22:31:36 ad 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, 399 BUS_SPACE_MAP_CACHEABLE, &vh->vh_allmemh)) 400 panic("vga_init: couldn't map memory"); 401 402 if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh, 0, 0x10000, 403 &vh->vh_memh)) 404 panic("vga_raster_init: mem subrange failed"); 405 406 vc->nscreens = 0; 407 LIST_INIT(&vc->screens); 408 vc->active = NULL; 409 vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen; 410 callout_init(&vc->vc_switch_callout, 0); 411 412 wsfont_init(); 413 vc->nfonts = 1; 414 LIST_INIT(&vc->vc_fontlist); 415 vf = &vga_console_fontset_ascii; 416 if (vga_no_builtinfont) { 417 struct wsdisplay_font *wf; 418 int cookie; 419 420 /* prefer 8x16 pixel font */ 421 cookie = wsfont_find(NULL, 8, 16, 0, WSDISPLAY_FONTORDER_L2R, 422 0, WSFONT_FIND_BITMAP); 423 if (cookie == -1) 424 cookie = wsfont_find(NULL, 0, 0, 0, 425 WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R, 426 WSFONT_FIND_BITMAP); 427 if (cookie == -1 || wsfont_lock(cookie, &wf)) 428 panic("vga_raster_init: can't load console font"); 429 vf->font = wf; 430 } else { 431 vga_load_builtinfont(vh, builtinfont_data, 0, 256); 432 vf->font = &builtinfont; 433 } 434 LIST_INSERT_HEAD(&vc->vc_fontlist, vf, next); 435 } 436 437 static void 438 vga_raster_init_screen(struct vga_config *vc, struct vgascreen *scr, 439 const struct wsscreen_descr *type, int existing, long *attrp) 440 { 441 int cpos; 442 int res __diagused; 443 struct vga_handle *vh; 444 445 scr->cfg = vc; 446 scr->hdl = &vc->hdl; 447 scr->type = type; 448 scr->mindispoffset = 0; 449 scr->maxdispoffset = scr->dispoffset + 450 type->nrows * type->ncols * type->fontheight; 451 vh = &vc->hdl; 452 453 LIST_INIT(&scr->fontset); 454 vga_raster_setup_font(vc, scr); 455 456 if (existing) { 457 int i; 458 459 cpos = vga_6845_read(vh, cursorh) << 8; 460 cpos |= vga_6845_read(vh, cursorl); 461 462 /* make sure we have a valid cursor position */ 463 if (cpos < 0 || cpos >= type->nrows * type->ncols) 464 cpos = 0; 465 466 scr->dispoffset = vga_6845_read(vh, startadrh) << 9; 467 scr->dispoffset |= vga_6845_read(vh, startadrl) << 1; 468 469 /* make sure we have a valid memory offset */ 470 if (scr->dispoffset < scr->mindispoffset || 471 scr->dispoffset > scr->maxdispoffset) 472 scr->dispoffset = scr->mindispoffset; 473 474 scr->mem = boot_scrmem; 475 scr->active = 1; 476 477 /* Save the current screen to memory. XXXBJY assume 80x25 */ 478 for (i = 0; i < 80 * 25; i++) { 479 scr->mem[i].ch = bus_space_read_1(vh->vh_memt, 480 vh->vh_allmemh, 0x18000 + i * 2); 481 scr->mem[i].attr = bus_space_read_1(vh->vh_memt, 482 vh->vh_allmemh, 0x18000 + i * 2 + 1); 483 scr->mem[i].enc = scr->encoding; 484 } 485 486 vga_raster_setscreentype(vc, type); 487 488 /* Clear the entire screen. */ 489 vga_gdc_write(vh, mode, 0x02); 490 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 491 0x4000); 492 493 vga_restore_screen(scr, type, scr->mem); 494 } else { 495 cpos = 0; 496 scr->dispoffset = scr->mindispoffset; 497 scr->mem = NULL; 498 scr->active = 0; 499 } 500 501 scr->cursorrow = cpos / type->ncols; 502 scr->cursorcol = cpos % type->ncols; 503 vga_raster_cursor_init(scr, existing); 504 505 #ifdef __alpha__ 506 if (!vc->hdl.vh_mono) 507 /* 508 * DEC firmware uses a blue background. 509 */ 510 res = vga_raster_allocattr(scr, WSCOL_WHITE, WSCOL_BLUE, 511 WSATTR_WSCOLORS, attrp); 512 else 513 #endif 514 res = vga_raster_allocattr(scr, 0, 0, 0, attrp); 515 KASSERTMSG(res == 0, "attribute botch"); 516 517 vc->nscreens++; 518 LIST_INSERT_HEAD(&vc->screens, scr, next); 519 } 520 521 void 522 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, 523 bus_space_tag_t memt, int type, int quirks, 524 const struct vga_funcs *vf) 525 { 526 int console; 527 struct vga_config *vc; 528 struct wsemuldisplaydev_attach_args aa; 529 530 console = vga_is_console(iot, type); 531 532 if (console) { 533 vc = &vga_console_vc; 534 vga_console_attached = 1; 535 } else { 536 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK); 537 vga_raster_init(vc, iot, memt); 538 } 539 540 vc->vc_type = type; 541 vc->vc_funcs = vf; 542 543 sc->sc_vc = vc; 544 vc->softc = sc; 545 546 aa.console = console; 547 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); 548 aa.accessops = &vga_raster_accessops; 549 aa.accesscookie = vc; 550 551 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 552 } 553 554 int 555 vga_cndetach(void) 556 { 557 struct vga_config *vc; 558 struct vga_handle *vh; 559 560 vc = &vga_console_vc; 561 vh = &vc->hdl; 562 563 if (vgaconsole) { 564 wsdisplay_cndetach(); 565 566 bus_space_unmap(vh->vh_iot, vh->vh_ioh_vga, 0x10); 567 bus_space_unmap(vh->vh_iot, vh->vh_ioh_6845, 0x10); 568 bus_space_unmap(vh->vh_memt, vh->vh_allmemh, 0x20000); 569 570 vga_console_attached = 0; 571 vgaconsole = 0; 572 573 return 1; 574 } 575 576 return 0; 577 } 578 579 int 580 vga_is_console(bus_space_tag_t iot, int type) 581 { 582 if (vgaconsole && 583 !vga_console_attached && 584 iot == vga_console_vc.hdl.vh_iot && 585 (vga_console_type == -1 || (type == vga_console_type))) 586 return (1); 587 return (0); 588 } 589 590 static int 591 vga_get_video(struct vga_config *vc) 592 { 593 594 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0; 595 } 596 597 static void 598 vga_set_video(struct vga_config *vc, int state) 599 { 600 int val; 601 602 vga_ts_write(&vc->hdl, syncreset, 0x01); 603 if (state) { /* unblank screen */ 604 val = vga_ts_read(&vc->hdl, mode); 605 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK); 606 #ifndef VGA_NO_VBLANK 607 val = vga_6845_read(&vc->hdl, mode); 608 vga_6845_write(&vc->hdl, mode, val | 0x80); 609 #endif 610 } else { /* blank screen */ 611 val = vga_ts_read(&vc->hdl, mode); 612 vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK); 613 #ifndef VGA_NO_VBLANK 614 val = vga_6845_read(&vc->hdl, mode); 615 vga_6845_write(&vc->hdl, mode, val & ~0x80); 616 #endif 617 } 618 vga_ts_write(&vc->hdl, syncreset, 0x03); 619 } 620 621 int 622 vga_raster_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 623 struct lwp *l) 624 { 625 struct vga_config *vc = v; 626 const struct vga_funcs *vf = vc->vc_funcs; 627 628 switch (cmd) { 629 case WSDISPLAYIO_GTYPE: 630 *(int *)data = vc->vc_type; 631 return 0; 632 633 case WSDISPLAYIO_GINFO: { 634 struct wsdisplay_fbinfo *fbi = data; 635 const struct wsscreen_descr *wd = vc->currenttype; 636 const struct videomode *vm = wd->modecookie; 637 fbi->width = vm->hdisplay; 638 fbi->height = vm->vdisplay; 639 fbi->depth = 24; /* xxx: ? */ 640 fbi->cmsize = 256; /* xxx: from palette */ 641 return 0; 642 } 643 644 case WSDISPLAYIO_GVIDEO: 645 *(int *)data = (vga_get_video(vc) ? 646 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); 647 return 0; 648 649 case WSDISPLAYIO_SVIDEO: 650 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 651 return 0; 652 653 case WSDISPLAYIO_GETCMAP: 654 case WSDISPLAYIO_PUTCMAP: 655 case WSDISPLAYIO_GCURPOS: 656 case WSDISPLAYIO_SCURPOS: 657 case WSDISPLAYIO_GCURMAX: 658 case WSDISPLAYIO_GCURSOR: 659 case WSDISPLAYIO_SCURSOR: 660 #ifdef DIAGNOSTIC 661 printf("%s: 0x%lx unsupported\n", __func__, cmd); 662 #endif 663 /* NONE of these operations are by the generic VGA driver. */ 664 return EPASSTHROUGH; 665 } 666 667 if (vc->vc_funcs == NULL) { 668 #ifdef DIAGNOSTIC 669 printf("%s: no vc_funcs\n", __func__); 670 #endif 671 return EPASSTHROUGH; 672 } 673 674 if (vf->vf_ioctl == NULL) { 675 #ifdef DIAGNOSTIC 676 printf("%s: no vf_ioctl\n", __func__); 677 #endif 678 return EPASSTHROUGH; 679 } 680 681 return ((*vf->vf_ioctl)(v, cmd, data, flag, l)); 682 } 683 684 static paddr_t 685 vga_raster_mmap(void *v, void *vs, off_t offset, int prot) 686 { 687 struct vga_config *vc = v; 688 const struct vga_funcs *vf = vc->vc_funcs; 689 690 if (vc->vc_funcs == NULL) 691 return (-1); 692 693 if (vf->vf_mmap == NULL) 694 return (-1); 695 696 return ((*vf->vf_mmap)(v, offset, prot)); 697 } 698 699 static int 700 vga_raster_alloc_screen(void *v, const struct wsscreen_descr *type, 701 void **cookiep, int *curxp, int *curyp, long *defattrp) 702 { 703 struct vga_config *vc = v; 704 struct vgascreen *scr; 705 706 if (vc->nscreens == 1) { 707 vc->screens.lh_first->mem = boot_scrmem; 708 } 709 710 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 711 vga_raster_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 712 713 if (vc->nscreens == 1) { 714 scr->active = 1; 715 vc->active = scr; 716 vc->currenttype = type; 717 } else { 718 scr->mem = malloc(sizeof(struct vga_scrmem) * 719 type->ncols * type->nrows, M_DEVBUF, M_WAITOK); 720 vga_raster_eraserows(scr, 0, type->nrows, *defattrp); 721 } 722 723 *cookiep = scr; 724 *curxp = scr->cursorcol; 725 *curyp = scr->cursorrow; 726 727 return (0); 728 } 729 730 static void 731 vga_raster_free_screen(void *v, void *cookie) 732 { 733 struct vgascreen *vs = cookie; 734 struct vga_config *vc = vs->cfg; 735 736 LIST_REMOVE(vs, next); 737 vc->nscreens--; 738 if (vs != &vga_console_screen) 739 free(vs, M_DEVBUF); 740 else 741 panic("vga_raster_free_screen: console"); 742 743 if (vc->active == vs) 744 vc->active = 0; 745 } 746 747 static int 748 vga_raster_show_screen(void *v, void *cookie, int waitok, 749 void (*cb)(void *, int, int), void *cbarg) 750 { 751 struct vgascreen *scr = cookie, *oldscr; 752 struct vga_config *vc = scr->cfg; 753 754 oldscr = vc->active; /* can be NULL! */ 755 if (scr == oldscr) { 756 return (0); 757 } 758 759 vc->wantedscreen = cookie; 760 vc->switchcb = cb; 761 vc->switchcbarg = cbarg; 762 if (cb) { 763 callout_reset(&vc->vc_switch_callout, 0, 764 (void(*)(void *))vga_switch_screen, vc); 765 return (EAGAIN); 766 } 767 768 vga_switch_screen(vc); 769 return (0); 770 } 771 772 static void 773 vga_switch_screen(struct vga_config *vc) 774 { 775 struct vgascreen *scr, *oldscr; 776 struct vga_handle *vh = &vc->hdl; 777 const struct wsscreen_descr *type; 778 779 scr = vc->wantedscreen; 780 if (!scr) { 781 printf("vga_switch_screen: disappeared\n"); 782 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 783 return; 784 } 785 type = scr->type; 786 oldscr = vc->active; /* can be NULL! */ 787 #ifdef DIAGNOSTIC 788 if (oldscr) { 789 if (!oldscr->active) 790 panic("vga_raster_show_screen: not active"); 791 if (oldscr->type != vc->currenttype) 792 panic("vga_raster_show_screen: bad type"); 793 } 794 #endif 795 if (scr == oldscr) { 796 return; 797 } 798 #ifdef DIAGNOSTIC 799 if (scr->active) 800 panic("vga_raster_show_screen: active"); 801 #endif 802 803 if (oldscr) 804 oldscr->active = 0; 805 806 if (vc->currenttype != type) { 807 vga_raster_setscreentype(vc, type); 808 vc->currenttype = type; 809 } 810 811 scr->dispoffset = scr->mindispoffset; 812 813 if (!oldscr || (scr->dispoffset != oldscr->dispoffset)) { 814 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 815 vga_6845_write(vh, startadrl, scr->dispoffset); 816 } 817 818 /* Clear the entire screen. */ 819 vga_gdc_write(vh, mode, 0x02); 820 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x2000); 821 822 scr->active = 1; 823 vga_restore_screen(scr, type, scr->mem); 824 825 vc->active = scr; 826 827 vga_raster_cursor(scr, scr->cursoron, scr->cursorrow, scr->cursorcol); 828 829 vc->wantedscreen = 0; 830 if (vc->switchcb) 831 (*vc->switchcb)(vc->switchcbarg, 0, 0); 832 } 833 834 static int 835 vga_raster_load_font(void *v, void *id, 836 struct wsdisplay_font *data) 837 { 838 /* XXX */ 839 printf("vga_raster_load_font: called\n"); 840 841 return (0); 842 } 843 844 static void 845 vga_raster_setup_font(struct vga_config *vc, struct vgascreen *scr) 846 { 847 struct vga_raster_font *vf; 848 struct wsdisplay_font *wf; 849 int cookie; 850 851 LIST_FOREACH(vf, &vc->vc_fontlist, next) { 852 if (wsfont_matches(vf->font, 0, 0, scr->type->fontheight, 0, 853 WSFONT_FIND_BITMAP)) { 854 scr->encoding = vf->font->encoding; 855 LIST_INSERT_HEAD(&scr->fontset, vf, next); 856 return; 857 } 858 } 859 860 cookie = wsfont_find(NULL, 0, scr->type->fontheight, 0, 861 WSDISPLAY_FONTORDER_L2R, 0, WSFONT_FIND_BITMAP); 862 if (cookie == -1) 863 return; 864 865 if (wsfont_lock(cookie, &wf)) 866 return; 867 868 vf = malloc(sizeof(struct vga_raster_font), M_DEVBUF, M_WAITOK); 869 vf->font = wf; 870 scr->encoding = vf->font->encoding; 871 LIST_INSERT_HEAD(&scr->fontset, vf, next); 872 } 873 874 static void 875 vga_setup_regs(struct videomode *mode, struct vga_moderegs *regs) 876 { 877 int i; 878 int depth = 4; /* XXXBJY hardcoded for now */ 879 const u_int8_t palette[] = { 880 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 881 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f 882 }; 883 884 /* 885 * Compute hsync and vsync polarity. 886 */ 887 if ((mode->flags & (VID_PHSYNC | VID_NHSYNC)) 888 && (mode->flags & (VID_PVSYNC | VID_NVSYNC))) { 889 regs->miscout = 0x23; 890 if (mode->flags & VID_NHSYNC) 891 regs->miscout |= 0x40; 892 if (mode->flags & VID_NVSYNC) 893 regs->miscout |= 0x80; 894 } else { 895 if (mode->flags & VID_DBLSCAN) 896 mode->vdisplay *= 2; 897 if (mode->vdisplay < 400) 898 regs->miscout = 0xa3; 899 else if (mode->vdisplay < 480) 900 regs->miscout = 0x63; 901 else if (mode->vdisplay < 768) 902 regs->miscout = 0xe3; 903 else 904 regs->miscout = 0x23; 905 } 906 907 /* 908 * Time sequencer 909 */ 910 if (depth == 4) 911 regs->ts[0] = 0x02; 912 else 913 regs->ts[0] = 0x00; 914 if (mode->flags & VID_CLKDIV2) 915 regs->ts[1] = 0x09; 916 else 917 regs->ts[1] = 0x01; 918 regs->ts[2] = 0x0f; 919 regs->ts[3] = 0x00; 920 if (depth < 8) 921 regs->ts[4] = 0x06; 922 else 923 regs->ts[4] = 0x0e; 924 925 /* 926 * CRTC controller 927 */ 928 regs->crtc[0] = (mode->htotal >> 3) - 5; 929 regs->crtc[1] = (mode->hdisplay >> 3) - 1; 930 regs->crtc[2] = (mode->hsync_start >> 3) - 1; 931 regs->crtc[3] = (((mode->hsync_end >> 3) - 1) & 0x1f) | 0x80; 932 regs->crtc[4] = mode->hsync_start >> 3; 933 regs->crtc[5] = ((((mode->hsync_end >> 3) - 1) & 0x20) << 2) 934 | (((mode->hsync_end >> 3)) & 0x1f); 935 regs->crtc[6] = (mode->vtotal - 2) & 0xff; 936 regs->crtc[7] = (((mode->vtotal - 2) & 0x100) >> 8) 937 | (((mode->vdisplay - 1) & 0x100) >> 7) 938 | ((mode->vsync_start & 0x100) >> 6) 939 | (((mode->vsync_start - 1) & 0x100) >> 5) 940 | 0x10 941 | (((mode->vtotal - 2) & 0x200) >> 4) 942 | (((mode->vdisplay - 1) & 0x200) >> 3) 943 | ((mode->vsync_start & 0x200) >> 2); 944 regs->crtc[8] = 0x00; 945 regs->crtc[9] = (((mode->vsync_start - 1) & 0x200) >> 4) | 0x40; 946 if (mode->flags & VID_DBLSCAN) 947 regs->crtc[9] |= 0x80; 948 regs->crtc[10] = 0x00; 949 regs->crtc[11] = 0x00; 950 regs->crtc[12] = 0x00; 951 regs->crtc[13] = 0x00; 952 regs->crtc[14] = 0x00; 953 regs->crtc[15] = 0x00; 954 regs->crtc[16] = mode->vsync_start & 0xff; 955 regs->crtc[17] = (mode->vsync_end & 0x0f) | 0x20; 956 regs->crtc[18] = (mode->vdisplay - 1) & 0xff; 957 regs->crtc[19] = mode->hdisplay >> 4; /* XXXBJY */ 958 regs->crtc[20] = 0x00; 959 regs->crtc[21] = (mode->vsync_start - 1) & 0xff; 960 regs->crtc[22] = (mode->vsync_end - 1) & 0xff; 961 if (depth < 8) 962 regs->crtc[23] = 0xe3; 963 else 964 regs->crtc[23] = 0xc3; 965 regs->crtc[24] = 0xff; 966 967 /* 968 * Graphics display controller 969 */ 970 regs->gdc[0] = 0x00; 971 regs->gdc[1] = 0x00; 972 regs->gdc[2] = 0x00; 973 regs->gdc[3] = 0x00; 974 regs->gdc[4] = 0x00; 975 if (depth == 4) 976 regs->gdc[5] = 0x02; 977 else 978 regs->gdc[5] = 0x40; 979 regs->gdc[6] = 0x01; 980 regs->gdc[7] = 0x0f; 981 regs->gdc[8] = 0xff; 982 983 /* 984 * Attribute controller 985 */ 986 /* Set palette registers. */ 987 for (i = 0; i < 16; i++) 988 regs->atc[i] = palette[i]; 989 if (depth == 4) 990 regs->atc[16] = 0x01; /* XXXBJY was 0x81 in XFree86 */ 991 else 992 regs->atc[16] = 0x41; 993 regs->atc[17] = 0x00; /* XXXBJY just a guess */ 994 regs->atc[18] = 0x0f; 995 regs->atc[19] = 0x00; 996 regs->atc[20] = 0x00; 997 } 998 999 static void 1000 vga_set_mode(struct vga_handle *vh, struct vga_moderegs *regs) 1001 { 1002 int i; 1003 1004 /* Disable display. */ 1005 vga_ts_write(vh, mode, vga_ts_read(vh, mode) | VGA_TS_MODE_BLANK); 1006 1007 /* Write misc output register. */ 1008 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAW, 1009 regs->miscout); 1010 1011 /* Set synchronous reset. */ 1012 vga_ts_write(vh, syncreset, 0x01); 1013 vga_ts_write(vh, mode, regs->ts[1] | VGA_TS_MODE_BLANK); 1014 for (i = 2; i < VGA_TS_NREGS; i++) 1015 _vga_ts_write(vh, i, regs->ts[i]); 1016 /* Clear synchronous reset. */ 1017 vga_ts_write(vh, syncreset, 0x03); 1018 1019 /* Unprotect CRTC registers 0-7. */ 1020 vga_6845_write(vh, vsynce, vga_6845_read(vh, vsynce) & ~0x80); 1021 /* Write CRTC registers. */ 1022 for (i = 0; i < MC6845_NREGS; i++) 1023 _vga_6845_write(vh, i, regs->crtc[i]); 1024 1025 /* Write graphics display registers. */ 1026 for (i = 0; i < VGA_GDC_NREGS; i++) 1027 _vga_gdc_write(vh, i, regs->gdc[i]); 1028 1029 /* Write attribute controller registers. */ 1030 for (i = 0; i < VGA_ATC_NREGS; i++) 1031 _vga_attr_write(vh, i, regs->atc[i]); 1032 1033 /* Enable display. */ 1034 vga_ts_write(vh, mode, vga_ts_read(vh, mode) & ~VGA_TS_MODE_BLANK); 1035 } 1036 1037 static void 1038 vga_raster_cursor_init(struct vgascreen *scr, int existing) 1039 { 1040 int off; 1041 1042 if (existing) { 1043 /* 1044 * This is the first screen. At this point, scr->active is 1045 * false, so we can't use vga_raster_cursor() to do this. 1046 */ 1047 off = (scr->cursorrow * scr->type->ncols + scr->cursorcol) + 1048 scr->dispoffset / 8; 1049 1050 scr->cursortmp = scr->mem[off]; 1051 vga_raster_putchar(scr, scr->cursorrow, scr->cursorcol, 1052 scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); 1053 } else { 1054 scr->cursortmp.ch = 0; 1055 scr->cursortmp.attr = 0; 1056 scr->cursortmp.second = 0; 1057 scr->cursortmp.enc = scr->encoding; 1058 } 1059 1060 scr->cursoron = 1; 1061 } 1062 1063 static void 1064 vga_raster_cursor(void *id, int on, int row, int col) 1065 { 1066 struct vgascreen *scr = id; 1067 int off, tmp; 1068 1069 /* Remove old cursor image */ 1070 if (scr->cursoron) { 1071 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1072 if (scr->active) { 1073 tmp = scr->encoding; 1074 scr->encoding = scr->cursortmp.enc; 1075 if (scr->cursortmp.second) 1076 vga_raster_putchar(id, scr->cursorrow, 1077 scr->cursorcol - 1, scr->cursortmp.ch, 1078 scr->cursortmp.attr); 1079 else 1080 vga_raster_putchar(id, scr->cursorrow, 1081 scr->cursorcol, scr->cursortmp.ch, 1082 scr->cursortmp.attr); 1083 scr->encoding = tmp; 1084 } 1085 } 1086 1087 scr->cursorrow = row; 1088 scr->cursorcol = col; 1089 1090 if ((scr->cursoron = on) == 0) 1091 return; 1092 1093 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1094 scr->cursortmp = scr->mem[off]; 1095 if (scr->active) { 1096 tmp = scr->encoding; 1097 scr->encoding = scr->cursortmp.enc; 1098 if (scr->cursortmp.second) 1099 vga_raster_putchar(id, scr->cursorrow, 1100 scr->cursorcol - 1, scr->cursortmp.ch, 1101 scr->cursortmp.attr ^ 0x77); 1102 else 1103 vga_raster_putchar(id, scr->cursorrow, 1104 scr->cursorcol, scr->cursortmp.ch, 1105 scr->cursortmp.attr ^ 0x77); 1106 scr->encoding = tmp; 1107 } 1108 } 1109 1110 static int 1111 vga_raster_mapchar(void *id, int uni, u_int *index) 1112 { 1113 struct vgascreen *scr = id; 1114 1115 if (scr->encoding == WSDISPLAY_FONTENC_IBM) 1116 return pcdisplay_mapchar(id, uni, index); 1117 else { 1118 *index = uni; 1119 return 5; 1120 } 1121 } 1122 1123 static void 1124 vga_raster_putchar(void *id, int row, int col, u_int c, long attr) 1125 { 1126 struct vgascreen *scr = id; 1127 size_t off; 1128 struct vga_raster_font *fs; 1129 u_int tmp_ch; 1130 1131 off = row * scr->type->ncols + col; 1132 1133 if (__predict_false(off >= (scr->type->ncols * scr->type->nrows))) 1134 return; 1135 1136 LIST_FOREACH(fs, &scr->fontset, next) { 1137 if ((scr->encoding == fs->font->encoding) && 1138 (c >= fs->font->firstchar) && 1139 (c < fs->font->firstchar + fs->font->numchars) && 1140 (scr->type->fontheight == fs->font->fontheight)) { 1141 if (scr->active) { 1142 tmp_ch = c - fs->font->firstchar; 1143 _vga_raster_putchar(scr, row, col, tmp_ch, 1144 attr, fs); 1145 } 1146 1147 scr->mem[off].ch = c; 1148 scr->mem[off].attr = attr; 1149 scr->mem[off].second = 0; 1150 scr->mem[off].enc = fs->font->encoding; 1151 1152 if (fs->font->stride == 2) { 1153 scr->mem[off + 1].ch = c; 1154 scr->mem[off + 1].attr = attr; 1155 scr->mem[off + 1].second = 1; 1156 scr->mem[off + 1].enc = fs->font->encoding; 1157 } 1158 1159 return; 1160 } 1161 } 1162 1163 /* 1164 * No match found. 1165 */ 1166 if (scr->active) 1167 /* 1168 * Put a single width space character no matter what the 1169 * actual width of the character is. 1170 */ 1171 _vga_raster_putchar(scr, row, col, ' ', attr, 1172 &vga_console_fontset_ascii); 1173 scr->mem[off].ch = c; 1174 scr->mem[off].attr = attr; 1175 scr->mem[off].second = 0; 1176 scr->mem[off].enc = scr->encoding; 1177 } 1178 1179 static void 1180 _vga_raster_putchar(void *id, int row, int col, u_int c, long attr, 1181 struct vga_raster_font *fs) 1182 { 1183 struct vgascreen *scr = id; 1184 struct vga_handle *vh = scr->hdl; 1185 bus_space_tag_t memt = vh->vh_memt; 1186 bus_space_handle_t memh = vh->vh_memh; 1187 int i; 1188 int rasoff, rasoff2; 1189 int fheight = scr->type->fontheight; 1190 volatile u_int8_t pattern; 1191 u_int8_t fgcolor, bgcolor; 1192 1193 rasoff = scr->dispoffset + row * scr->type->ncols * fheight + col; 1194 rasoff2 = rasoff; 1195 1196 #if 0 1197 bgcolor = bgansitopc[attr >> 4]; 1198 fgcolor = fgansitopc[attr & 0x0f]; 1199 #else 1200 bgcolor = ((attr >> 4) & 0x0f); 1201 fgcolor = attr & 0x0f; 1202 #endif 1203 1204 if (fs->font->stride == 1) { 1205 /* Paint background. */ 1206 vga_gdc_write(vh, mode, 0x02); 1207 for (i = 0; i < fheight; i++) { 1208 bus_space_write_1(memt, memh, rasoff, bgcolor); 1209 rasoff += scr->type->ncols; 1210 } 1211 1212 /* Draw a single width character. */ 1213 vga_gdc_write(vh, mode, 0x03); 1214 vga_gdc_write(vh, setres, fgcolor); 1215 for (i = 0; i < fheight; i++) { 1216 pattern = ((u_int8_t *)fs->font->data)[c * fheight + i]; 1217 /* When pattern is 0, skip output for speed-up. */ 1218 if (pattern != 0) { 1219 bus_space_read_1(memt, memh, rasoff2); 1220 bus_space_write_1(memt, memh, rasoff2, pattern); 1221 } 1222 rasoff2 += scr->type->ncols; 1223 } 1224 } else if (fs->font->stride == 2) { 1225 /* Paint background. */ 1226 vga_gdc_write(vh, mode, 0x02); 1227 for (i = 0; i < fheight; i++) { 1228 bus_space_write_1(memt, memh, rasoff, bgcolor); 1229 bus_space_write_1(memt, memh, rasoff + 1, bgcolor); 1230 rasoff += scr->type->ncols; 1231 } 1232 1233 /* Draw a double width character. */ 1234 vga_gdc_write(vh, mode, 0x03); 1235 vga_gdc_write(vh, setres, fgcolor); 1236 for (i = 0; i < fheight; i++) { 1237 pattern = ((u_int8_t *)fs->font->data) 1238 [(c * fheight + i) * 2]; 1239 if (pattern != 0) { 1240 bus_space_read_1(memt, memh, rasoff2); 1241 bus_space_write_1(memt, memh, rasoff2, pattern); 1242 } 1243 pattern = ((u_int8_t *)fs->font->data) 1244 [(c * fheight + i) * 2 + 1]; 1245 if (pattern != 0) { 1246 rasoff2++; 1247 bus_space_read_1(memt, memh, rasoff2); 1248 bus_space_write_1(memt, memh, rasoff2, pattern); 1249 rasoff2--; 1250 } 1251 rasoff2 += scr->type->ncols; 1252 } 1253 } 1254 } 1255 1256 static void 1257 vga_raster_copycols(void *id, int row, int srccol, int dstcol, int ncols) 1258 { 1259 struct vgascreen *scr = id; 1260 struct vga_handle *vh = scr->hdl; 1261 bus_space_tag_t memt = vh->vh_memt; 1262 bus_space_handle_t memh = vh->vh_memh; 1263 bus_size_t srcoff, dstoff; 1264 bus_size_t rassrcoff, rasdstoff; 1265 int i; 1266 int fheight = scr->type->fontheight; 1267 1268 srcoff = row * scr->type->ncols + srccol; 1269 dstoff = row * scr->type->ncols + dstcol; 1270 rassrcoff = scr->dispoffset + row * scr->type->ncols * fheight + srccol; 1271 rasdstoff = scr->dispoffset + row * scr->type->ncols * fheight + dstcol; 1272 1273 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1274 ncols * sizeof(struct vga_scrmem)); 1275 1276 vga_gdc_write(vh, mode, 0x01); 1277 if (scr->active) { 1278 for (i = 0; i < fheight; i++) { 1279 bus_space_copy_region_1(memt, memh, 1280 rassrcoff + i * scr->type->ncols, memh, 1281 rasdstoff + i * scr->type->ncols, ncols); 1282 } 1283 } 1284 } 1285 1286 static void 1287 vga_raster_erasecols(void *id, int row, int startcol, int ncols, long fillattr) 1288 { 1289 struct vgascreen *scr = id; 1290 int i; 1291 1292 if (scr->active == 0) 1293 return; 1294 1295 for (i = startcol; i < startcol + ncols; i++) 1296 vga_raster_putchar(id, row, i, ' ', fillattr); 1297 } 1298 1299 static void 1300 vga_raster_copyrows(void *id, int srcrow, int dstrow, int nrows) 1301 { 1302 struct vgascreen *scr = id; 1303 struct vga_handle *vh = scr->hdl; 1304 bus_space_tag_t memt = vh->vh_memt; 1305 bus_space_handle_t memh = vh->vh_memh; 1306 int ncols; 1307 bus_size_t srcoff, dstoff; 1308 bus_size_t rassrcoff, rasdstoff; 1309 int fheight; 1310 1311 ncols = scr->type->ncols; 1312 fheight = scr->type->fontheight; 1313 1314 srcoff = srcrow * ncols; 1315 dstoff = dstrow * ncols; 1316 rassrcoff = srcoff * fheight; 1317 rasdstoff = dstoff * fheight; 1318 1319 if (scr->active) { 1320 vga_gdc_write(vh, mode, 0x01); 1321 if (dstrow == 0 && (srcrow + nrows == scr->type->nrows)) { 1322 int cursoron = scr->cursoron; 1323 1324 if (cursoron) 1325 /* Disable cursor. */ 1326 vga_raster_cursor(scr, 0, 1327 scr->cursorrow, scr->cursorcol); 1328 1329 /* scroll up whole screen */ 1330 if ((scr->dispoffset + srcrow * ncols * fheight) 1331 <= scr->maxdispoffset) 1332 scr->dispoffset += srcrow * ncols * fheight; 1333 else { 1334 bus_space_copy_region_1(memt, memh, 1335 scr->dispoffset + rassrcoff, 1336 memh, scr->mindispoffset, 1337 nrows * ncols * fheight); 1338 scr->dispoffset = scr->mindispoffset; 1339 } 1340 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 1341 vga_6845_write(vh, startadrl, scr->dispoffset); 1342 1343 if (cursoron) 1344 /* Enable cursor. */ 1345 vga_raster_cursor(scr, 1, scr->cursorrow, 1346 scr->cursorcol); 1347 } else 1348 bus_space_copy_region_1(memt, memh, 1349 scr->dispoffset + rassrcoff, memh, 1350 scr->dispoffset + rasdstoff, 1351 nrows * ncols * fheight); 1352 } 1353 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1354 nrows * ncols * sizeof(struct vga_scrmem)); 1355 } 1356 1357 static void 1358 vga_raster_eraserows(void *id, int startrow, int nrows, long fillattr) 1359 { 1360 struct vgascreen *scr = id; 1361 struct vga_handle *vh = scr->hdl; 1362 bus_space_tag_t memt = vh->vh_memt; 1363 bus_space_handle_t memh = vh->vh_memh; 1364 bus_size_t off, count; 1365 bus_size_t rasoff, rascount; 1366 int i; 1367 1368 off = startrow * scr->type->ncols; 1369 count = nrows * scr->type->ncols; 1370 rasoff = off * scr->type->fontheight; 1371 rascount = count * scr->type->fontheight; 1372 1373 if (scr->active) { 1374 u_int8_t bgcolor = (fillattr >> 4) & 0x0F; 1375 1376 /* Paint background. */ 1377 vga_gdc_write(vh, mode, 0x02); 1378 if (scr->type->ncols % 4 == 0) { 1379 u_int32_t fill = bgcolor | (bgcolor << 8) | 1380 (bgcolor << 16) | (bgcolor << 24); 1381 /* We can speed up I/O */ 1382 for (i = rasoff; i < rasoff + rascount; i += 4) 1383 bus_space_write_4(memt, memh, 1384 scr->dispoffset + i, fill); 1385 } else { 1386 u_int16_t fill = bgcolor | (bgcolor << 8); 1387 for (i = rasoff; i < rasoff + rascount; i += 2) 1388 bus_space_write_2(memt, memh, 1389 scr->dispoffset + i, fill); 1390 } 1391 } 1392 for (i = 0; i < count; i++) { 1393 scr->mem[off + i].ch = ' '; 1394 scr->mem[off + i].attr = fillattr; 1395 scr->mem[off + i].second = 0; 1396 scr->mem[off + i].enc = scr->encoding; 1397 } 1398 } 1399 1400 static int 1401 vga_raster_allocattr(void *id, int fg, int bg, int flags, long *attrp) 1402 { 1403 struct vgascreen *scr = id; 1404 struct vga_config *vc = scr->cfg; 1405 1406 if (__predict_false((unsigned int)fg >= sizeof(fgansitopc) || 1407 (unsigned int)bg >= sizeof(bgansitopc))) 1408 return (EINVAL); 1409 1410 if (vc->hdl.vh_mono) { 1411 if (flags & WSATTR_WSCOLORS) 1412 return (EINVAL); 1413 if (flags & WSATTR_REVERSE) 1414 *attrp = 0x70; 1415 else 1416 *attrp = 0x07; 1417 if (flags & WSATTR_UNDERLINE) 1418 *attrp |= FG_UNDERLINE; 1419 if (flags & WSATTR_HILIT) 1420 *attrp |= FG_INTENSE; 1421 } else { 1422 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1423 return (EINVAL); 1424 if (flags & WSATTR_WSCOLORS) 1425 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1426 else 1427 *attrp = 7; 1428 if (flags & WSATTR_HILIT) 1429 *attrp += 8; 1430 } 1431 if (flags & WSATTR_BLINK) 1432 *attrp |= FG_BLINK; 1433 return (0); 1434 } 1435 1436 static void 1437 vga_restore_screen(struct vgascreen *scr, 1438 const struct wsscreen_descr *type, struct vga_scrmem *mem) 1439 { 1440 int i, j, off, tmp; 1441 1442 tmp = scr->encoding; 1443 for (i = 0; i < type->nrows; i++) { 1444 for (j = 0; j < type->ncols; j++) { 1445 off = i * type->ncols + j; 1446 if (mem[off].second != 1) { 1447 scr->encoding = mem[off].enc; 1448 vga_raster_putchar(scr, i, j, mem[off].ch, 1449 mem[off].attr); 1450 } 1451 } 1452 } 1453 scr->encoding = tmp; 1454 } 1455 1456 static void 1457 vga_raster_setscreentype(struct vga_config *vc, 1458 const struct wsscreen_descr *type) 1459 { 1460 struct vga_handle *vh = &vc->hdl; 1461 struct vga_moderegs moderegs; 1462 1463 vga_setup_regs((struct videomode *)type->modecookie, &moderegs); 1464 vga_set_mode(vh, &moderegs); 1465 } 1466 1467 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1468 static void 1469 vga_raster_replaceattr(void *id, long oldattr, long newattr) 1470 { 1471 struct vgascreen *scr = id; 1472 const struct wsscreen_descr *type = scr->type; 1473 int off; 1474 1475 for (off = 0; off < type->nrows * type->ncols; off++) { 1476 if (scr->mem[off].attr == oldattr) 1477 scr->mem[off].attr = newattr; 1478 } 1479 1480 /* Repaint the whole screen, if needed */ 1481 if (scr->active) 1482 vga_restore_screen(scr, type, scr->mem); 1483 } 1484 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 1485 1486 void 1487 vga_resume(struct vga_softc *sc) 1488 { 1489 #ifdef VGA_RESET_ON_RESUME 1490 vga_initregs(&sc->sc_vc->hdl); 1491 #endif 1492 } 1493
Indexes created Thu Sep 25 16:09:42 GMT 2025