1 /* $NetBSD: vga_raster.c,v 1.46 2019/12/01 14:18:51 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@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 1.46 2019/12/01 14:18:51 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 | BUS_SPACE_MAP_PREFETCHABLE, 400 &vh->vh_allmemh)) 401 panic("vga_init: couldn't map memory"); 402 403 if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh, 0, 0x10000, 404 &vh->vh_memh)) 405 panic("vga_raster_init: mem subrange failed"); 406 407 vc->nscreens = 0; 408 LIST_INIT(&vc->screens); 409 vc->active = NULL; 410 vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen; 411 callout_init(&vc->vc_switch_callout, 0); 412 413 wsfont_init(); 414 vc->nfonts = 1; 415 LIST_INIT(&vc->vc_fontlist); 416 vf = &vga_console_fontset_ascii; 417 if (vga_no_builtinfont) { 418 struct wsdisplay_font *wf; 419 int cookie; 420 421 /* prefer 8x16 pixel font */ 422 cookie = wsfont_find(NULL, 8, 16, 0, WSDISPLAY_FONTORDER_L2R, 423 0, WSFONT_FIND_BITMAP); 424 if (cookie == -1) 425 cookie = wsfont_find(NULL, 0, 0, 0, 426 WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R, 427 WSFONT_FIND_BITMAP); 428 if (cookie == -1 || wsfont_lock(cookie, &wf)) 429 panic("vga_raster_init: can't load console font"); 430 vf->font = wf; 431 } else { 432 vga_load_builtinfont(vh, builtinfont_data, 0, 256); 433 vf->font = &builtinfont; 434 } 435 LIST_INSERT_HEAD(&vc->vc_fontlist, vf, next); 436 } 437 438 static void 439 vga_raster_init_screen(struct vga_config *vc, struct vgascreen *scr, 440 const struct wsscreen_descr *type, int existing, long *attrp) 441 { 442 int cpos; 443 int res; 444 struct vga_handle *vh; 445 446 scr->cfg = vc; 447 scr->hdl = &vc->hdl; 448 scr->type = type; 449 scr->mindispoffset = 0; 450 scr->maxdispoffset = scr->dispoffset + 451 type->nrows * type->ncols * type->fontheight; 452 vh = &vc->hdl; 453 454 LIST_INIT(&scr->fontset); 455 vga_raster_setup_font(vc, scr); 456 457 if (existing) { 458 int i; 459 460 cpos = vga_6845_read(vh, cursorh) << 8; 461 cpos |= vga_6845_read(vh, cursorl); 462 463 /* make sure we have a valid cursor position */ 464 if (cpos < 0 || cpos >= type->nrows * type->ncols) 465 cpos = 0; 466 467 scr->dispoffset = vga_6845_read(vh, startadrh) << 9; 468 scr->dispoffset |= vga_6845_read(vh, startadrl) << 1; 469 470 /* make sure we have a valid memory offset */ 471 if (scr->dispoffset < scr->mindispoffset || 472 scr->dispoffset > scr->maxdispoffset) 473 scr->dispoffset = scr->mindispoffset; 474 475 scr->mem = boot_scrmem; 476 scr->active = 1; 477 478 /* Save the current screen to memory. XXXBJY assume 80x25 */ 479 for (i = 0; i < 80 * 25; i++) { 480 scr->mem[i].ch = bus_space_read_1(vh->vh_memt, 481 vh->vh_allmemh, 0x18000 + i * 2); 482 scr->mem[i].attr = bus_space_read_1(vh->vh_memt, 483 vh->vh_allmemh, 0x18000 + i * 2 + 1); 484 scr->mem[i].enc = scr->encoding; 485 } 486 487 vga_raster_setscreentype(vc, type); 488 489 /* Clear the entire screen. */ 490 vga_gdc_write(vh, mode, 0x02); 491 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 492 0x4000); 493 494 vga_restore_screen(scr, type, scr->mem); 495 } else { 496 cpos = 0; 497 scr->dispoffset = scr->mindispoffset; 498 scr->mem = NULL; 499 scr->active = 0; 500 } 501 502 scr->cursorrow = cpos / type->ncols; 503 scr->cursorcol = cpos % type->ncols; 504 vga_raster_cursor_init(scr, existing); 505 506 #ifdef __alpha__ 507 if (!vc->hdl.vh_mono) 508 /* 509 * DEC firmware uses a blue background. 510 */ 511 res = vga_raster_allocattr(scr, WSCOL_WHITE, WSCOL_BLUE, 512 WSATTR_WSCOLORS, attrp); 513 else 514 #endif 515 res = vga_raster_allocattr(scr, 0, 0, 0, attrp); 516 #ifdef DIAGNOSTIC 517 if (res) 518 panic("vga_raster_init_screen: attribute botch"); 519 #endif 520 521 vc->nscreens++; 522 LIST_INSERT_HEAD(&vc->screens, scr, next); 523 } 524 525 void 526 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, 527 bus_space_tag_t memt, int type, int quirks, 528 const struct vga_funcs *vf) 529 { 530 int console; 531 struct vga_config *vc; 532 struct wsemuldisplaydev_attach_args aa; 533 534 console = vga_is_console(iot, type); 535 536 if (console) { 537 vc = &vga_console_vc; 538 vga_console_attached = 1; 539 } else { 540 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK); 541 vga_raster_init(vc, iot, memt); 542 } 543 544 vc->vc_type = type; 545 vc->vc_funcs = vf; 546 547 sc->sc_vc = vc; 548 vc->softc = sc; 549 550 aa.console = console; 551 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); 552 aa.accessops = &vga_raster_accessops; 553 aa.accesscookie = vc; 554 555 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 556 } 557 558 int 559 vga_cndetach(void) 560 { 561 struct vga_config *vc; 562 struct vga_handle *vh; 563 564 vc = &vga_console_vc; 565 vh = &vc->hdl; 566 567 if (vgaconsole) { 568 wsdisplay_cndetach(); 569 570 bus_space_unmap(vh->vh_iot, vh->vh_ioh_vga, 0x10); 571 bus_space_unmap(vh->vh_iot, vh->vh_ioh_6845, 0x10); 572 bus_space_unmap(vh->vh_memt, vh->vh_allmemh, 0x20000); 573 574 vga_console_attached = 0; 575 vgaconsole = 0; 576 577 return 1; 578 } 579 580 return 0; 581 } 582 583 int 584 vga_is_console(bus_space_tag_t iot, int type) 585 { 586 if (vgaconsole && 587 !vga_console_attached && 588 iot == vga_console_vc.hdl.vh_iot && 589 (vga_console_type == -1 || (type == vga_console_type))) 590 return (1); 591 return (0); 592 } 593 594 static int 595 vga_get_video(struct vga_config *vc) 596 { 597 598 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0; 599 } 600 601 static void 602 vga_set_video(struct vga_config *vc, int state) 603 { 604 int val; 605 606 vga_ts_write(&vc->hdl, syncreset, 0x01); 607 if (state) { /* unblank screen */ 608 val = vga_ts_read(&vc->hdl, mode); 609 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK); 610 #ifndef VGA_NO_VBLANK 611 val = vga_6845_read(&vc->hdl, mode); 612 vga_6845_write(&vc->hdl, mode, val | 0x80); 613 #endif 614 } else { /* blank screen */ 615 val = vga_ts_read(&vc->hdl, mode); 616 vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK); 617 #ifndef VGA_NO_VBLANK 618 val = vga_6845_read(&vc->hdl, mode); 619 vga_6845_write(&vc->hdl, mode, val & ~0x80); 620 #endif 621 } 622 vga_ts_write(&vc->hdl, syncreset, 0x03); 623 } 624 625 int 626 vga_raster_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 627 struct lwp *l) 628 { 629 struct vga_config *vc = v; 630 const struct vga_funcs *vf = vc->vc_funcs; 631 632 switch (cmd) { 633 case WSDISPLAYIO_GTYPE: 634 *(int *)data = vc->vc_type; 635 return 0; 636 637 case WSDISPLAYIO_GINFO: { 638 struct wsdisplay_fbinfo *fbi = data; 639 const struct wsscreen_descr *wd = vc->currenttype; 640 const struct videomode *vm = wd->modecookie; 641 fbi->width = vm->hdisplay; 642 fbi->height = vm->vdisplay; 643 fbi->depth = 24; /* xxx: ? */ 644 fbi->cmsize = 256; /* xxx: from palette */ 645 return 0; 646 } 647 648 case WSDISPLAYIO_GVIDEO: 649 *(int *)data = (vga_get_video(vc) ? 650 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); 651 return 0; 652 653 case WSDISPLAYIO_SVIDEO: 654 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 655 return 0; 656 657 case WSDISPLAYIO_GETCMAP: 658 case WSDISPLAYIO_PUTCMAP: 659 case WSDISPLAYIO_GCURPOS: 660 case WSDISPLAYIO_SCURPOS: 661 case WSDISPLAYIO_GCURMAX: 662 case WSDISPLAYIO_GCURSOR: 663 case WSDISPLAYIO_SCURSOR: 664 #ifdef DIAGNOSTIC 665 printf("%s: 0x%lx unsupported\n", __func__, cmd); 666 #endif 667 /* NONE of these operations are by the generic VGA driver. */ 668 return EPASSTHROUGH; 669 } 670 671 if (vc->vc_funcs == NULL) { 672 #ifdef DIAGNOSTIC 673 printf("%s: no vc_funcs\n", __func__); 674 #endif 675 return EPASSTHROUGH; 676 } 677 678 if (vf->vf_ioctl == NULL) { 679 #ifdef DIAGNOSTIC 680 printf("%s: no vf_ioctl\n", __func__); 681 #endif 682 return EPASSTHROUGH; 683 } 684 685 return ((*vf->vf_ioctl)(v, cmd, data, flag, l)); 686 } 687 688 static paddr_t 689 vga_raster_mmap(void *v, void *vs, off_t offset, int prot) 690 { 691 struct vga_config *vc = v; 692 const struct vga_funcs *vf = vc->vc_funcs; 693 694 if (vc->vc_funcs == NULL) 695 return (-1); 696 697 if (vf->vf_mmap == NULL) 698 return (-1); 699 700 return ((*vf->vf_mmap)(v, offset, prot)); 701 } 702 703 static int 704 vga_raster_alloc_screen(void *v, const struct wsscreen_descr *type, 705 void **cookiep, int *curxp, int *curyp, long *defattrp) 706 { 707 struct vga_config *vc = v; 708 struct vgascreen *scr; 709 710 if (vc->nscreens == 1) { 711 vc->screens.lh_first->mem = boot_scrmem; 712 } 713 714 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 715 vga_raster_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 716 717 if (vc->nscreens == 1) { 718 scr->active = 1; 719 vc->active = scr; 720 vc->currenttype = type; 721 } else { 722 scr->mem = malloc(sizeof(struct vga_scrmem) * 723 type->ncols * type->nrows, M_DEVBUF, M_WAITOK); 724 vga_raster_eraserows(scr, 0, type->nrows, *defattrp); 725 } 726 727 *cookiep = scr; 728 *curxp = scr->cursorcol; 729 *curyp = scr->cursorrow; 730 731 return (0); 732 } 733 734 static void 735 vga_raster_free_screen(void *v, void *cookie) 736 { 737 struct vgascreen *vs = cookie; 738 struct vga_config *vc = vs->cfg; 739 740 LIST_REMOVE(vs, next); 741 vc->nscreens--; 742 if (vs != &vga_console_screen) 743 free(vs, M_DEVBUF); 744 else 745 panic("vga_raster_free_screen: console"); 746 747 if (vc->active == vs) 748 vc->active = 0; 749 } 750 751 static int 752 vga_raster_show_screen(void *v, void *cookie, int waitok, 753 void (*cb)(void *, int, int), void *cbarg) 754 { 755 struct vgascreen *scr = cookie, *oldscr; 756 struct vga_config *vc = scr->cfg; 757 758 oldscr = vc->active; /* can be NULL! */ 759 if (scr == oldscr) { 760 return (0); 761 } 762 763 vc->wantedscreen = cookie; 764 vc->switchcb = cb; 765 vc->switchcbarg = cbarg; 766 if (cb) { 767 callout_reset(&vc->vc_switch_callout, 0, 768 (void(*)(void *))vga_switch_screen, vc); 769 return (EAGAIN); 770 } 771 772 vga_switch_screen(vc); 773 return (0); 774 } 775 776 static void 777 vga_switch_screen(struct vga_config *vc) 778 { 779 struct vgascreen *scr, *oldscr; 780 struct vga_handle *vh = &vc->hdl; 781 const struct wsscreen_descr *type; 782 783 scr = vc->wantedscreen; 784 if (!scr) { 785 printf("vga_switch_screen: disappeared\n"); 786 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 787 return; 788 } 789 type = scr->type; 790 oldscr = vc->active; /* can be NULL! */ 791 #ifdef DIAGNOSTIC 792 if (oldscr) { 793 if (!oldscr->active) 794 panic("vga_raster_show_screen: not active"); 795 if (oldscr->type != vc->currenttype) 796 panic("vga_raster_show_screen: bad type"); 797 } 798 #endif 799 if (scr == oldscr) { 800 return; 801 } 802 #ifdef DIAGNOSTIC 803 if (scr->active) 804 panic("vga_raster_show_screen: active"); 805 #endif 806 807 if (oldscr) 808 oldscr->active = 0; 809 810 if (vc->currenttype != type) { 811 vga_raster_setscreentype(vc, type); 812 vc->currenttype = type; 813 } 814 815 scr->dispoffset = scr->mindispoffset; 816 817 if (!oldscr || (scr->dispoffset != oldscr->dispoffset)) { 818 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 819 vga_6845_write(vh, startadrl, scr->dispoffset); 820 } 821 822 /* Clear the entire screen. */ 823 vga_gdc_write(vh, mode, 0x02); 824 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x2000); 825 826 scr->active = 1; 827 vga_restore_screen(scr, type, scr->mem); 828 829 vc->active = scr; 830 831 vga_raster_cursor(scr, scr->cursoron, scr->cursorrow, scr->cursorcol); 832 833 vc->wantedscreen = 0; 834 if (vc->switchcb) 835 (*vc->switchcb)(vc->switchcbarg, 0, 0); 836 } 837 838 static int 839 vga_raster_load_font(void *v, void *id, 840 struct wsdisplay_font *data) 841 { 842 /* XXX */ 843 printf("vga_raster_load_font: called\n"); 844 845 return (0); 846 } 847 848 static void 849 vga_raster_setup_font(struct vga_config *vc, struct vgascreen *scr) 850 { 851 struct vga_raster_font *vf; 852 struct wsdisplay_font *wf; 853 int cookie; 854 855 LIST_FOREACH(vf, &vc->vc_fontlist, next) { 856 if (wsfont_matches(vf->font, 0, 0, scr->type->fontheight, 0, 857 WSFONT_FIND_BITMAP)) { 858 scr->encoding = vf->font->encoding; 859 LIST_INSERT_HEAD(&scr->fontset, vf, next); 860 return; 861 } 862 } 863 864 cookie = wsfont_find(NULL, 0, scr->type->fontheight, 0, 865 WSDISPLAY_FONTORDER_L2R, 0, WSFONT_FIND_BITMAP); 866 if (cookie == -1) 867 return; 868 869 if (wsfont_lock(cookie, &wf)) 870 return; 871 872 vf = malloc(sizeof(struct vga_raster_font), M_DEVBUF, M_WAITOK); 873 vf->font = wf; 874 scr->encoding = vf->font->encoding; 875 LIST_INSERT_HEAD(&scr->fontset, vf, next); 876 } 877 878 static void 879 vga_setup_regs(struct videomode *mode, struct vga_moderegs *regs) 880 { 881 int i; 882 int depth = 4; /* XXXBJY hardcoded for now */ 883 const u_int8_t palette[] = { 884 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 885 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f 886 }; 887 888 /* 889 * Compute hsync and vsync polarity. 890 */ 891 if ((mode->flags & (VID_PHSYNC | VID_NHSYNC)) 892 && (mode->flags & (VID_PVSYNC | VID_NVSYNC))) { 893 regs->miscout = 0x23; 894 if (mode->flags & VID_NHSYNC) 895 regs->miscout |= 0x40; 896 if (mode->flags & VID_NVSYNC) 897 regs->miscout |= 0x80; 898 } else { 899 if (mode->flags & VID_DBLSCAN) 900 mode->vdisplay *= 2; 901 if (mode->vdisplay < 400) 902 regs->miscout = 0xa3; 903 else if (mode->vdisplay < 480) 904 regs->miscout = 0x63; 905 else if (mode->vdisplay < 768) 906 regs->miscout = 0xe3; 907 else 908 regs->miscout = 0x23; 909 } 910 911 /* 912 * Time sequencer 913 */ 914 if (depth == 4) 915 regs->ts[0] = 0x02; 916 else 917 regs->ts[0] = 0x00; 918 if (mode->flags & VID_CLKDIV2) 919 regs->ts[1] = 0x09; 920 else 921 regs->ts[1] = 0x01; 922 regs->ts[2] = 0x0f; 923 regs->ts[3] = 0x00; 924 if (depth < 8) 925 regs->ts[4] = 0x06; 926 else 927 regs->ts[4] = 0x0e; 928 929 /* 930 * CRTC controller 931 */ 932 regs->crtc[0] = (mode->htotal >> 3) - 5; 933 regs->crtc[1] = (mode->hdisplay >> 3) - 1; 934 regs->crtc[2] = (mode->hsync_start >> 3) - 1; 935 regs->crtc[3] = (((mode->hsync_end >> 3) - 1) & 0x1f) | 0x80; 936 regs->crtc[4] = mode->hsync_start >> 3; 937 regs->crtc[5] = ((((mode->hsync_end >> 3) - 1) & 0x20) << 2) 938 | (((mode->hsync_end >> 3)) & 0x1f); 939 regs->crtc[6] = (mode->vtotal - 2) & 0xff; 940 regs->crtc[7] = (((mode->vtotal - 2) & 0x100) >> 8) 941 | (((mode->vdisplay - 1) & 0x100) >> 7) 942 | ((mode->vsync_start & 0x100) >> 6) 943 | (((mode->vsync_start - 1) & 0x100) >> 5) 944 | 0x10 945 | (((mode->vtotal - 2) & 0x200) >> 4) 946 | (((mode->vdisplay - 1) & 0x200) >> 3) 947 | ((mode->vsync_start & 0x200) >> 2); 948 regs->crtc[8] = 0x00; 949 regs->crtc[9] = (((mode->vsync_start - 1) & 0x200) >> 4) | 0x40; 950 if (mode->flags & VID_DBLSCAN) 951 regs->crtc[9] |= 0x80; 952 regs->crtc[10] = 0x00; 953 regs->crtc[11] = 0x00; 954 regs->crtc[12] = 0x00; 955 regs->crtc[13] = 0x00; 956 regs->crtc[14] = 0x00; 957 regs->crtc[15] = 0x00; 958 regs->crtc[16] = mode->vsync_start & 0xff; 959 regs->crtc[17] = (mode->vsync_end & 0x0f) | 0x20; 960 regs->crtc[18] = (mode->vdisplay - 1) & 0xff; 961 regs->crtc[19] = mode->hdisplay >> 4; /* XXXBJY */ 962 regs->crtc[20] = 0x00; 963 regs->crtc[21] = (mode->vsync_start - 1) & 0xff; 964 regs->crtc[22] = (mode->vsync_end - 1) & 0xff; 965 if (depth < 8) 966 regs->crtc[23] = 0xe3; 967 else 968 regs->crtc[23] = 0xc3; 969 regs->crtc[24] = 0xff; 970 971 /* 972 * Graphics display controller 973 */ 974 regs->gdc[0] = 0x00; 975 regs->gdc[1] = 0x00; 976 regs->gdc[2] = 0x00; 977 regs->gdc[3] = 0x00; 978 regs->gdc[4] = 0x00; 979 if (depth == 4) 980 regs->gdc[5] = 0x02; 981 else 982 regs->gdc[5] = 0x40; 983 regs->gdc[6] = 0x01; 984 regs->gdc[7] = 0x0f; 985 regs->gdc[8] = 0xff; 986 987 /* 988 * Attribute controller 989 */ 990 /* Set palette registers. */ 991 for (i = 0; i < 16; i++) 992 regs->atc[i] = palette[i]; 993 if (depth == 4) 994 regs->atc[16] = 0x01; /* XXXBJY was 0x81 in XFree86 */ 995 else 996 regs->atc[16] = 0x41; 997 regs->atc[17] = 0x00; /* XXXBJY just a guess */ 998 regs->atc[18] = 0x0f; 999 regs->atc[19] = 0x00; 1000 regs->atc[20] = 0x00; 1001 } 1002 1003 static void 1004 vga_set_mode(struct vga_handle *vh, struct vga_moderegs *regs) 1005 { 1006 int i; 1007 1008 /* Disable display. */ 1009 vga_ts_write(vh, mode, vga_ts_read(vh, mode) | VGA_TS_MODE_BLANK); 1010 1011 /* Write misc output register. */ 1012 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAW, 1013 regs->miscout); 1014 1015 /* Set synchronous reset. */ 1016 vga_ts_write(vh, syncreset, 0x01); 1017 vga_ts_write(vh, mode, regs->ts[1] | VGA_TS_MODE_BLANK); 1018 for (i = 2; i < VGA_TS_NREGS; i++) 1019 _vga_ts_write(vh, i, regs->ts[i]); 1020 /* Clear synchronous reset. */ 1021 vga_ts_write(vh, syncreset, 0x03); 1022 1023 /* Unprotect CRTC registers 0-7. */ 1024 vga_6845_write(vh, vsynce, vga_6845_read(vh, vsynce) & ~0x80); 1025 /* Write CRTC registers. */ 1026 for (i = 0; i < MC6845_NREGS; i++) 1027 _vga_6845_write(vh, i, regs->crtc[i]); 1028 1029 /* Write graphics display registers. */ 1030 for (i = 0; i < VGA_GDC_NREGS; i++) 1031 _vga_gdc_write(vh, i, regs->gdc[i]); 1032 1033 /* Write attribute controller registers. */ 1034 for (i = 0; i < VGA_ATC_NREGS; i++) 1035 _vga_attr_write(vh, i, regs->atc[i]); 1036 1037 /* Enable display. */ 1038 vga_ts_write(vh, mode, vga_ts_read(vh, mode) & ~VGA_TS_MODE_BLANK); 1039 } 1040 1041 static void 1042 vga_raster_cursor_init(struct vgascreen *scr, int existing) 1043 { 1044 int off; 1045 1046 if (existing) { 1047 /* 1048 * This is the first screen. At this point, scr->active is 1049 * false, so we can't use vga_raster_cursor() to do this. 1050 */ 1051 off = (scr->cursorrow * scr->type->ncols + scr->cursorcol) + 1052 scr->dispoffset / 8; 1053 1054 scr->cursortmp = scr->mem[off]; 1055 vga_raster_putchar(scr, scr->cursorrow, scr->cursorcol, 1056 scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); 1057 } else { 1058 scr->cursortmp.ch = 0; 1059 scr->cursortmp.attr = 0; 1060 scr->cursortmp.second = 0; 1061 scr->cursortmp.enc = scr->encoding; 1062 } 1063 1064 scr->cursoron = 1; 1065 } 1066 1067 static void 1068 vga_raster_cursor(void *id, int on, int row, int col) 1069 { 1070 struct vgascreen *scr = id; 1071 int off, tmp; 1072 1073 /* Remove old cursor image */ 1074 if (scr->cursoron) { 1075 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1076 if (scr->active) { 1077 tmp = scr->encoding; 1078 scr->encoding = scr->cursortmp.enc; 1079 if (scr->cursortmp.second) 1080 vga_raster_putchar(id, scr->cursorrow, 1081 scr->cursorcol - 1, scr->cursortmp.ch, 1082 scr->cursortmp.attr); 1083 else 1084 vga_raster_putchar(id, scr->cursorrow, 1085 scr->cursorcol, scr->cursortmp.ch, 1086 scr->cursortmp.attr); 1087 scr->encoding = tmp; 1088 } 1089 } 1090 1091 scr->cursorrow = row; 1092 scr->cursorcol = col; 1093 1094 if ((scr->cursoron = on) == 0) 1095 return; 1096 1097 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1098 scr->cursortmp = scr->mem[off]; 1099 if (scr->active) { 1100 tmp = scr->encoding; 1101 scr->encoding = scr->cursortmp.enc; 1102 if (scr->cursortmp.second) 1103 vga_raster_putchar(id, scr->cursorrow, 1104 scr->cursorcol - 1, scr->cursortmp.ch, 1105 scr->cursortmp.attr ^ 0x77); 1106 else 1107 vga_raster_putchar(id, scr->cursorrow, 1108 scr->cursorcol, scr->cursortmp.ch, 1109 scr->cursortmp.attr ^ 0x77); 1110 scr->encoding = tmp; 1111 } 1112 } 1113 1114 static int 1115 vga_raster_mapchar(void *id, int uni, u_int *index) 1116 { 1117 struct vgascreen *scr = id; 1118 1119 if (scr->encoding == WSDISPLAY_FONTENC_IBM) 1120 return pcdisplay_mapchar(id, uni, index); 1121 else { 1122 *index = uni; 1123 return 5; 1124 } 1125 } 1126 1127 static void 1128 vga_raster_putchar(void *id, int row, int col, u_int c, long attr) 1129 { 1130 struct vgascreen *scr = id; 1131 size_t off; 1132 struct vga_raster_font *fs; 1133 u_int tmp_ch; 1134 1135 off = row * scr->type->ncols + col; 1136 1137 if (__predict_false(off >= (scr->type->ncols * scr->type->nrows))) 1138 return; 1139 1140 LIST_FOREACH(fs, &scr->fontset, next) { 1141 if ((scr->encoding == fs->font->encoding) && 1142 (c >= fs->font->firstchar) && 1143 (c < fs->font->firstchar + fs->font->numchars) && 1144 (scr->type->fontheight == fs->font->fontheight)) { 1145 if (scr->active) { 1146 tmp_ch = c - fs->font->firstchar; 1147 _vga_raster_putchar(scr, row, col, tmp_ch, 1148 attr, fs); 1149 } 1150 1151 scr->mem[off].ch = c; 1152 scr->mem[off].attr = attr; 1153 scr->mem[off].second = 0; 1154 scr->mem[off].enc = fs->font->encoding; 1155 1156 if (fs->font->stride == 2) { 1157 scr->mem[off + 1].ch = c; 1158 scr->mem[off + 1].attr = attr; 1159 scr->mem[off + 1].second = 1; 1160 scr->mem[off + 1].enc = fs->font->encoding; 1161 } 1162 1163 return; 1164 } 1165 } 1166 1167 /* 1168 * No match found. 1169 */ 1170 if (scr->active) 1171 /* 1172 * Put a single width space character no matter what the 1173 * actual width of the character is. 1174 */ 1175 _vga_raster_putchar(scr, row, col, ' ', attr, 1176 &vga_console_fontset_ascii); 1177 scr->mem[off].ch = c; 1178 scr->mem[off].attr = attr; 1179 scr->mem[off].second = 0; 1180 scr->mem[off].enc = scr->encoding; 1181 } 1182 1183 static void 1184 _vga_raster_putchar(void *id, int row, int col, u_int c, long attr, 1185 struct vga_raster_font *fs) 1186 { 1187 struct vgascreen *scr = id; 1188 struct vga_handle *vh = scr->hdl; 1189 bus_space_tag_t memt = vh->vh_memt; 1190 bus_space_handle_t memh = vh->vh_memh; 1191 int i; 1192 int rasoff, rasoff2; 1193 int fheight = scr->type->fontheight; 1194 volatile u_int8_t pattern; 1195 u_int8_t fgcolor, bgcolor; 1196 1197 rasoff = scr->dispoffset + row * scr->type->ncols * fheight + col; 1198 rasoff2 = rasoff; 1199 1200 #if 0 1201 bgcolor = bgansitopc[attr >> 4]; 1202 fgcolor = fgansitopc[attr & 0x0f]; 1203 #else 1204 bgcolor = ((attr >> 4) & 0x0f); 1205 fgcolor = attr & 0x0f; 1206 #endif 1207 1208 if (fs->font->stride == 1) { 1209 /* Paint background. */ 1210 vga_gdc_write(vh, mode, 0x02); 1211 for (i = 0; i < fheight; i++) { 1212 bus_space_write_1(memt, memh, rasoff, bgcolor); 1213 rasoff += scr->type->ncols; 1214 } 1215 1216 /* Draw a single width character. */ 1217 vga_gdc_write(vh, mode, 0x03); 1218 vga_gdc_write(vh, setres, fgcolor); 1219 for (i = 0; i < fheight; i++) { 1220 pattern = ((u_int8_t *)fs->font->data)[c * fheight + i]; 1221 /* When pattern is 0, skip output for speed-up. */ 1222 if (pattern != 0) { 1223 bus_space_read_1(memt, memh, rasoff2); 1224 bus_space_write_1(memt, memh, rasoff2, pattern); 1225 } 1226 rasoff2 += scr->type->ncols; 1227 } 1228 } else if (fs->font->stride == 2) { 1229 /* Paint background. */ 1230 vga_gdc_write(vh, mode, 0x02); 1231 for (i = 0; i < fheight; i++) { 1232 bus_space_write_1(memt, memh, rasoff, bgcolor); 1233 bus_space_write_1(memt, memh, rasoff + 1, bgcolor); 1234 rasoff += scr->type->ncols; 1235 } 1236 1237 /* Draw a double width character. */ 1238 vga_gdc_write(vh, mode, 0x03); 1239 vga_gdc_write(vh, setres, fgcolor); 1240 for (i = 0; i < fheight; i++) { 1241 pattern = ((u_int8_t *)fs->font->data) 1242 [(c * fheight + i) * 2]; 1243 if (pattern != 0) { 1244 bus_space_read_1(memt, memh, rasoff2); 1245 bus_space_write_1(memt, memh, rasoff2, pattern); 1246 } 1247 pattern = ((u_int8_t *)fs->font->data) 1248 [(c * fheight + i) * 2 + 1]; 1249 if (pattern != 0) { 1250 rasoff2++; 1251 bus_space_read_1(memt, memh, rasoff2); 1252 bus_space_write_1(memt, memh, rasoff2, pattern); 1253 rasoff2--; 1254 } 1255 rasoff2 += scr->type->ncols; 1256 } 1257 } 1258 } 1259 1260 static void 1261 vga_raster_copycols(void *id, int row, int srccol, int dstcol, int ncols) 1262 { 1263 struct vgascreen *scr = id; 1264 struct vga_handle *vh = scr->hdl; 1265 bus_space_tag_t memt = vh->vh_memt; 1266 bus_space_handle_t memh = vh->vh_memh; 1267 bus_size_t srcoff, dstoff; 1268 bus_size_t rassrcoff, rasdstoff; 1269 int i; 1270 int fheight = scr->type->fontheight; 1271 1272 srcoff = row * scr->type->ncols + srccol; 1273 dstoff = row * scr->type->ncols + dstcol; 1274 rassrcoff = scr->dispoffset + row * scr->type->ncols * fheight + srccol; 1275 rasdstoff = scr->dispoffset + row * scr->type->ncols * fheight + dstcol; 1276 1277 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1278 ncols * sizeof(struct vga_scrmem)); 1279 1280 vga_gdc_write(vh, mode, 0x01); 1281 if (scr->active) { 1282 for (i = 0; i < fheight; i++) { 1283 bus_space_copy_region_1(memt, memh, 1284 rassrcoff + i * scr->type->ncols, memh, 1285 rasdstoff + i * scr->type->ncols, ncols); 1286 } 1287 } 1288 } 1289 1290 static void 1291 vga_raster_erasecols(void *id, int row, int startcol, int ncols, long fillattr) 1292 { 1293 struct vgascreen *scr = id; 1294 int i; 1295 1296 if (scr->active == 0) 1297 return; 1298 1299 for (i = startcol; i < startcol + ncols; i++) 1300 vga_raster_putchar(id, row, i, ' ', fillattr); 1301 } 1302 1303 static void 1304 vga_raster_copyrows(void *id, int srcrow, int dstrow, int nrows) 1305 { 1306 struct vgascreen *scr = id; 1307 struct vga_handle *vh = scr->hdl; 1308 bus_space_tag_t memt = vh->vh_memt; 1309 bus_space_handle_t memh = vh->vh_memh; 1310 int ncols; 1311 bus_size_t srcoff, dstoff; 1312 bus_size_t rassrcoff, rasdstoff; 1313 int fheight; 1314 1315 ncols = scr->type->ncols; 1316 fheight = scr->type->fontheight; 1317 1318 srcoff = srcrow * ncols; 1319 dstoff = dstrow * ncols; 1320 rassrcoff = srcoff * fheight; 1321 rasdstoff = dstoff * fheight; 1322 1323 if (scr->active) { 1324 vga_gdc_write(vh, mode, 0x01); 1325 if (dstrow == 0 && (srcrow + nrows == scr->type->nrows)) { 1326 int cursoron = scr->cursoron; 1327 1328 if (cursoron) 1329 /* Disable cursor. */ 1330 vga_raster_cursor(scr, 0, 1331 scr->cursorrow, scr->cursorcol); 1332 1333 /* scroll up whole screen */ 1334 if ((scr->dispoffset + srcrow * ncols * fheight) 1335 <= scr->maxdispoffset) 1336 scr->dispoffset += srcrow * ncols * fheight; 1337 else { 1338 bus_space_copy_region_1(memt, memh, 1339 scr->dispoffset + rassrcoff, 1340 memh, scr->mindispoffset, 1341 nrows * ncols * fheight); 1342 scr->dispoffset = scr->mindispoffset; 1343 } 1344 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 1345 vga_6845_write(vh, startadrl, scr->dispoffset); 1346 1347 if (cursoron) 1348 /* Enable cursor. */ 1349 vga_raster_cursor(scr, 1, scr->cursorrow, 1350 scr->cursorcol); 1351 } else 1352 bus_space_copy_region_1(memt, memh, 1353 scr->dispoffset + rassrcoff, memh, 1354 scr->dispoffset + rasdstoff, 1355 nrows * ncols * fheight); 1356 } 1357 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1358 nrows * ncols * sizeof(struct vga_scrmem)); 1359 } 1360 1361 static void 1362 vga_raster_eraserows(void *id, int startrow, int nrows, long fillattr) 1363 { 1364 struct vgascreen *scr = id; 1365 struct vga_handle *vh = scr->hdl; 1366 bus_space_tag_t memt = vh->vh_memt; 1367 bus_space_handle_t memh = vh->vh_memh; 1368 bus_size_t off, count; 1369 bus_size_t rasoff, rascount; 1370 int i; 1371 1372 off = startrow * scr->type->ncols; 1373 count = nrows * scr->type->ncols; 1374 rasoff = off * scr->type->fontheight; 1375 rascount = count * scr->type->fontheight; 1376 1377 if (scr->active) { 1378 u_int8_t bgcolor = (fillattr >> 4) & 0x0F; 1379 1380 /* Paint background. */ 1381 vga_gdc_write(vh, mode, 0x02); 1382 if (scr->type->ncols % 4 == 0) { 1383 u_int32_t fill = bgcolor | (bgcolor << 8) | 1384 (bgcolor << 16) | (bgcolor << 24); 1385 /* We can speed up I/O */ 1386 for (i = rasoff; i < rasoff + rascount; i += 4) 1387 bus_space_write_4(memt, memh, 1388 scr->dispoffset + i, fill); 1389 } else { 1390 u_int16_t fill = bgcolor | (bgcolor << 8); 1391 for (i = rasoff; i < rasoff + rascount; i += 2) 1392 bus_space_write_2(memt, memh, 1393 scr->dispoffset + i, fill); 1394 } 1395 } 1396 for (i = 0; i < count; i++) { 1397 scr->mem[off + i].ch = ' '; 1398 scr->mem[off + i].attr = fillattr; 1399 scr->mem[off + i].second = 0; 1400 scr->mem[off + i].enc = scr->encoding; 1401 } 1402 } 1403 1404 static int 1405 vga_raster_allocattr(void *id, int fg, int bg, int flags, long *attrp) 1406 { 1407 struct vgascreen *scr = id; 1408 struct vga_config *vc = scr->cfg; 1409 1410 if (__predict_false((unsigned int)fg >= sizeof(fgansitopc) || 1411 (unsigned int)bg >= sizeof(bgansitopc))) 1412 return (EINVAL); 1413 1414 if (vc->hdl.vh_mono) { 1415 if (flags & WSATTR_WSCOLORS) 1416 return (EINVAL); 1417 if (flags & WSATTR_REVERSE) 1418 *attrp = 0x70; 1419 else 1420 *attrp = 0x07; 1421 if (flags & WSATTR_UNDERLINE) 1422 *attrp |= FG_UNDERLINE; 1423 if (flags & WSATTR_HILIT) 1424 *attrp |= FG_INTENSE; 1425 } else { 1426 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1427 return (EINVAL); 1428 if (flags & WSATTR_WSCOLORS) 1429 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1430 else 1431 *attrp = 7; 1432 if (flags & WSATTR_HILIT) 1433 *attrp += 8; 1434 } 1435 if (flags & WSATTR_BLINK) 1436 *attrp |= FG_BLINK; 1437 return (0); 1438 } 1439 1440 static void 1441 vga_restore_screen(struct vgascreen *scr, 1442 const struct wsscreen_descr *type, struct vga_scrmem *mem) 1443 { 1444 int i, j, off, tmp; 1445 1446 tmp = scr->encoding; 1447 for (i = 0; i < type->nrows; i++) { 1448 for (j = 0; j < type->ncols; j++) { 1449 off = i * type->ncols + j; 1450 if (mem[off].second != 1) { 1451 scr->encoding = mem[off].enc; 1452 vga_raster_putchar(scr, i, j, mem[off].ch, 1453 mem[off].attr); 1454 } 1455 } 1456 } 1457 scr->encoding = tmp; 1458 } 1459 1460 static void 1461 vga_raster_setscreentype(struct vga_config *vc, 1462 const struct wsscreen_descr *type) 1463 { 1464 struct vga_handle *vh = &vc->hdl; 1465 struct vga_moderegs moderegs; 1466 1467 vga_setup_regs((struct videomode *)type->modecookie, &moderegs); 1468 vga_set_mode(vh, &moderegs); 1469 } 1470 1471 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1472 static void 1473 vga_raster_replaceattr(void *id, long oldattr, long newattr) 1474 { 1475 struct vgascreen *scr = id; 1476 const struct wsscreen_descr *type = scr->type; 1477 int off; 1478 1479 for (off = 0; off < type->nrows * type->ncols; off++) { 1480 if (scr->mem[off].attr == oldattr) 1481 scr->mem[off].attr = newattr; 1482 } 1483 1484 /* Repaint the whole screen, if needed */ 1485 if (scr->active) 1486 vga_restore_screen(scr, type, scr->mem); 1487 } 1488 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 1489 1490 void 1491 vga_resume(struct vga_softc *sc) 1492 { 1493 #ifdef VGA_RESET_ON_RESUME 1494 vga_initregs(&sc->sc_vc->hdl); 1495 #endif 1496 } 1497