1 /* $NetBSD: vga_raster.c,v 1.10 2003/01/31 21:57:26 tsutsui Exp $ */ 2 3 /* 4 * Copyright (c) 2001, 2002 Bang Jun-Young 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 /* 31 * Copyright (c) 1995, 1996 Carnegie-Mellon University. 32 * All rights reserved. 33 * 34 * Author: Chris G. Demetriou 35 * 36 * Permission to use, copy, modify and distribute this software and 37 * its documentation is hereby granted, provided that both the copyright 38 * notice and this permission notice appear in all copies of the 39 * software, derivative works or modified versions, and any portions 40 * thereof, and that both notices appear in supporting documentation. 41 * 42 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 43 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 44 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 45 * 46 * Carnegie Mellon requests users of this software to return to 47 * 48 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 49 * School of Computer Science 50 * Carnegie Mellon University 51 * Pittsburgh PA 15213-3890 52 * 53 * any improvements or extensions that they make and grant Carnegie the 54 * rights to redistribute these changes. 55 */ 56 57 #include <sys/param.h> 58 #include <sys/systm.h> 59 #include <sys/callout.h> 60 #include <sys/kernel.h> 61 #include <sys/device.h> 62 #include <sys/malloc.h> 63 #include <sys/queue.h> 64 #include <machine/bus.h> 65 66 #include <dev/ic/mc6845reg.h> 67 #include <dev/ic/pcdisplayvar.h> 68 #include <dev/ic/vgareg.h> 69 #include <dev/ic/vgavar.h> 70 #include <dev/ic/videomode.h> 71 72 #include <dev/wscons/wsdisplayvar.h> 73 #include <dev/wscons/wsconsio.h> 74 #include <dev/wsfont/wsfont.h> 75 76 #include <dev/ic/pcdisplay.h> 77 78 int vga_no_builtinfont = 0; 79 80 u_int8_t builtinfont_data[256 * 16]; 81 82 struct wsdisplay_font builtinfont = { 83 "builtin", /* typeface name */ 84 0, /* firstchar */ 85 256, /* numchars */ 86 WSDISPLAY_FONTENC_IBM, /* encoding */ 87 8, /* width */ 88 16, /* height */ 89 1, /* stride */ 90 WSDISPLAY_FONTORDER_L2R, /* bit order */ 91 WSDISPLAY_FONTORDER_L2R, /* byte order */ 92 builtinfont_data /* data */ 93 }; 94 95 struct vga_scrmem { 96 u_int16_t ch; 97 u_int8_t attr; 98 u_int8_t second; /* XXXBJY should be u_int8_t len; */ 99 u_int8_t enc; 100 }; 101 102 #ifdef VGA_CONSOLE_SCREENTYPE 103 #define VGA_SCRMEM_SIZE (80 * 30) 104 #else 105 #define VGA_SCRMEM_SIZE (80 * 25) 106 #endif 107 108 struct vga_scrmem boot_scrmem[VGA_SCRMEM_SIZE]; 109 110 struct vga_raster_font { 111 LIST_ENTRY(vga_raster_font) next; 112 struct wsdisplay_font *font; 113 }; 114 115 struct vgascreen { 116 LIST_ENTRY(vgascreen) next; 117 struct vga_config *cfg; 118 struct vga_handle *hdl; 119 const struct wsscreen_descr *type; 120 121 int active; 122 struct vga_scrmem *mem; 123 int encoding; 124 125 int dispoffset; 126 int mindispoffset; 127 int maxdispoffset; 128 129 int cursoron; /* Is cursor displayed? */ 130 int cursorcol; /* Current cursor column */ 131 int cursorrow; /* Current cursor row */ 132 struct vga_scrmem cursortmp; 133 int cursorstride; 134 135 LIST_HEAD(, vga_raster_font) fontset; 136 }; 137 138 struct vga_moderegs { 139 u_int8_t miscout; /* Misc. output */ 140 u_int8_t crtc[MC6845_NREGS]; /* CRTC controller */ 141 u_int8_t atc[VGA_ATC_NREGS]; /* Attribute controller */ 142 u_int8_t ts[VGA_TS_NREGS]; /* Time sequencer */ 143 u_int8_t gdc[VGA_GDC_NREGS]; /* Graphics display controller */ 144 }; 145 146 static int vgaconsole, vga_console_type, vga_console_attached; 147 static struct vgascreen vga_console_screen; 148 static struct vga_config vga_console_vc; 149 static struct vga_raster_font vga_console_fontset_ascii; 150 static struct videomode vga_console_modes[2] = { 151 /* 640x400 for 80x25, 80x40 and 80x50 modes */ 152 { 153 25175, 640, 664, 760, 800, 400, 409, 411, 450, 0 154 }, 155 /* 640x480 for 80x30 mode */ 156 { 157 25175, 640, 664, 760, 800, 480, 491, 493, 525, 0 158 } 159 }; 160 161 static void vga_raster_init(struct vga_config *, bus_space_tag_t, 162 bus_space_tag_t); 163 static void vga_raster_init_screen(struct vga_config *, struct vgascreen *, 164 const struct wsscreen_descr *, int, long *); 165 static void vga_raster_setup_font(struct vga_config *, struct vgascreen *); 166 static void vga_setup_regs(struct videomode *, struct vga_moderegs *); 167 static void vga_set_mode(struct vga_handle *, struct vga_moderegs *); 168 static void vga_restore_screen(struct vgascreen *, 169 const struct wsscreen_descr *, struct vga_scrmem *); 170 static void vga_raster_cursor_init(struct vgascreen *, int); 171 static void _vga_raster_putchar(void *, int, int, u_int, long, 172 struct vga_raster_font *); 173 174 static void vga_raster_cursor(void *, int, int, int); 175 static int vga_raster_mapchar(void *, int, u_int *); 176 static void vga_raster_putchar(void *, int, int, u_int, long); 177 static void vga_raster_copycols(void *, int, int, int, int); 178 static void vga_raster_erasecols(void *, int, int, int, long); 179 static void vga_raster_copyrows(void *, int, int, int); 180 static void vga_raster_eraserows(void *, int, int, long); 181 static int vga_raster_allocattr(void *, int, int, int, long *); 182 183 const struct wsdisplay_emulops vga_raster_emulops = { 184 vga_raster_cursor, 185 vga_raster_mapchar, 186 vga_raster_putchar, 187 vga_raster_copycols, 188 vga_raster_erasecols, 189 vga_raster_copyrows, 190 vga_raster_eraserows, 191 vga_raster_allocattr, 192 }; 193 194 /* 195 * translate WS(=ANSI) color codes to standard pc ones 196 */ 197 static const unsigned char fgansitopc[] = { 198 #ifdef __alpha__ 199 /* 200 * XXX DEC HAS SWITCHED THE CODES FOR BLUE AND RED!!! 201 * XXX We should probably not bother with this 202 * XXX (reinitialize the palette registers). 203 */ 204 FG_BLACK, FG_BLUE, FG_GREEN, FG_CYAN, FG_RED, 205 FG_MAGENTA, FG_BROWN, FG_LIGHTGREY 206 #else 207 FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE, 208 FG_MAGENTA, FG_CYAN, FG_LIGHTGREY 209 #endif 210 }, bgansitopc[] = { 211 #ifdef __alpha__ 212 BG_BLACK, BG_BLUE, BG_GREEN, BG_CYAN, BG_RED, 213 BG_MAGENTA, BG_BROWN, BG_LIGHTGREY 214 #else 215 BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE, 216 BG_MAGENTA, BG_CYAN, BG_LIGHTGREY 217 #endif 218 }; 219 220 const struct wsscreen_descr vga_25lscreen = { 221 "80x25", 80, 25, 222 &vga_raster_emulops, 223 8, 16, 224 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 225 &vga_console_modes[0] 226 }, vga_25lscreen_mono = { 227 "80x25", 80, 25, 228 &vga_raster_emulops, 229 8, 16, 230 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 231 &vga_console_modes[0] 232 }, vga_30lscreen = { 233 "80x30", 80, 30, 234 &vga_raster_emulops, 235 8, 16, 236 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 237 &vga_console_modes[1] 238 }, vga_30lscreen_mono = { 239 "80x30", 80, 30, 240 &vga_raster_emulops, 241 8, 16, 242 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 243 &vga_console_modes[1] 244 }, vga_40lscreen = { 245 "80x40", 80, 40, 246 &vga_raster_emulops, 247 8, 10, 248 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 249 &vga_console_modes[0] 250 }, vga_40lscreen_mono = { 251 "80x40", 80, 40, 252 &vga_raster_emulops, 253 8, 10, 254 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 255 &vga_console_modes[0] 256 }, vga_50lscreen = { 257 "80x50", 80, 50, 258 &vga_raster_emulops, 259 8, 8, 260 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 261 &vga_console_modes[0] 262 }, vga_50lscreen_mono = { 263 "80x50", 80, 50, 264 &vga_raster_emulops, 265 8, 8, 266 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 267 &vga_console_modes[0] 268 }; 269 270 const struct wsscreen_descr *_vga_scrlist[] = { 271 &vga_25lscreen, 272 &vga_30lscreen, 273 &vga_40lscreen, 274 &vga_50lscreen, 275 }, *_vga_scrlist_mono[] = { 276 &vga_25lscreen_mono, 277 &vga_30lscreen_mono, 278 &vga_40lscreen_mono, 279 &vga_50lscreen_mono, 280 }; 281 282 const struct wsscreen_list vga_screenlist = { 283 sizeof(_vga_scrlist) / sizeof(struct wsscreen_descr *), 284 _vga_scrlist 285 }, vga_screenlist_mono = { 286 sizeof(_vga_scrlist_mono) / sizeof(struct wsscreen_descr *), 287 _vga_scrlist_mono 288 }; 289 290 static int vga_raster_ioctl(void *, u_long, caddr_t, int, struct proc *); 291 static paddr_t vga_raster_mmap(void *, off_t, int); 292 static int vga_raster_alloc_screen(void *, const struct wsscreen_descr *, 293 void **, int *, int *, long *); 294 static void vga_raster_free_screen(void *, void *); 295 static int vga_raster_show_screen(void *, void *, int, 296 void (*)(void *, int, int), void *); 297 static int vga_raster_load_font(void *, void *, struct wsdisplay_font *); 298 299 static void vga_switch_screen(struct vga_config *); 300 static void vga_raster_setscreentype(struct vga_config *, 301 const struct wsscreen_descr *); 302 303 const struct wsdisplay_accessops vga_raster_accessops = { 304 vga_raster_ioctl, 305 vga_raster_mmap, 306 vga_raster_alloc_screen, 307 vga_raster_free_screen, 308 vga_raster_show_screen, 309 vga_raster_load_font, 310 }; 311 312 int 313 vga_cnattach(bus_space_tag_t iot, bus_space_tag_t memt, int type, int check) 314 { 315 long defattr; 316 const struct wsscreen_descr *scr; 317 #ifdef VGA_CONSOLE_SCREENTYPE 318 char *typestr; 319 #endif 320 321 if (check && !vga_common_probe(iot, memt)) 322 return (ENXIO); 323 324 /* set up bus-independent VGA configuration */ 325 vga_raster_init(&vga_console_vc, iot, memt); 326 #ifdef VGA_CONSOLE_SCREENTYPE 327 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 328 &vga_screenlist_mono : &vga_screenlist, VGA_CONSOLE_SCREENTYPE); 329 if (!scr) 330 /* Invalid screen type, continue with the default mode. */ 331 typestr = "80x25"; 332 else if (scr->nrows > 30) 333 /* Unsupported screen type, try 80x30. */ 334 typestr = "80x30"; 335 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 336 &vga_screenlist_mono : &vga_screenlist, typestr); 337 if (scr != vga_console_vc.currenttype) 338 vga_console_vc.currenttype = scr; 339 #else 340 scr = vga_console_vc.currenttype; 341 #endif 342 vga_raster_init_screen(&vga_console_vc, &vga_console_screen, scr, 1, 343 &defattr); 344 345 vga_console_screen.active = 1; 346 vga_console_vc.active = &vga_console_screen; 347 348 wsdisplay_cnattach(scr, &vga_console_screen, 349 vga_console_screen.cursorcol, vga_console_screen.cursorrow, 350 defattr); 351 352 vgaconsole = 1; 353 vga_console_type = type; 354 return (0); 355 } 356 357 void 358 vga_raster_init(struct vga_config *vc, bus_space_tag_t iot, 359 bus_space_tag_t memt) 360 { 361 struct vga_handle *vh = &vc->hdl; 362 u_int8_t mor; 363 struct vga_raster_font *vf; 364 365 vh->vh_iot = iot; 366 vh->vh_memt = memt; 367 368 if (bus_space_map(vh->vh_iot, 0x3c0, 0x10, 0, &vh->vh_ioh_vga)) 369 panic("vga_raster_init: couldn't map vga io"); 370 371 /* read "misc output register" */ 372 mor = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAR); 373 vh->vh_mono = !(mor & 1); 374 375 if (bus_space_map(vh->vh_iot, (vh->vh_mono ? 0x3b0 : 0x3d0), 0x10, 0, 376 &vh->vh_ioh_6845)) 377 panic("vga_raster_init: couldn't map 6845 io"); 378 379 if (bus_space_map(vh->vh_memt, 0xa0000, 0x20000, 0, &vh->vh_allmemh)) 380 panic("vga_raster_init: couldn't map memory"); 381 382 if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh, 0, 0x10000, 383 &vh->vh_memh)) 384 panic("vga_raster_init: mem subrange failed"); 385 386 /* should only reserve the space (no need to map - save KVM) */ 387 vc->vc_biostag = memt; 388 if (bus_space_map(vc->vc_biostag, 0xc0000, 0x8000, 0, &vc->vc_bioshdl)) 389 vc->vc_biosmapped = 0; 390 else 391 vc->vc_biosmapped = 1; 392 393 vc->nscreens = 0; 394 LIST_INIT(&vc->screens); 395 vc->active = NULL; 396 vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen; 397 callout_init(&vc->vc_switch_callout); 398 399 wsfont_init(); 400 vc->nfonts = 1; 401 LIST_INIT(&vc->vc_fontlist); 402 vf = &vga_console_fontset_ascii; 403 if (vga_no_builtinfont) { 404 struct wsdisplay_font *wf; 405 int cookie; 406 407 /* prefer 8x16 pixel font */ 408 cookie = wsfont_find(NULL, 8, 16, 0, 409 WSDISPLAY_FONTORDER_L2R, 0); 410 if (cookie == -1) 411 cookie = wsfont_find(NULL, 0, 0, 0, 412 WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R); 413 if (cookie == -1 || wsfont_lock(cookie, &wf)) 414 panic("vga_raster_init: can't load console font"); 415 vf->font = wf; 416 } else { 417 vga_load_builtinfont(vh, builtinfont_data, 0, 256); 418 vf->font = &builtinfont; 419 } 420 LIST_INSERT_HEAD(&vc->vc_fontlist, vf, next); 421 } 422 423 void 424 vga_raster_init_screen(struct vga_config *vc, struct vgascreen *scr, 425 const struct wsscreen_descr *type, int existing, long *attrp) 426 { 427 int cpos; 428 int res; 429 struct vga_handle *vh; 430 431 scr->cfg = vc; 432 scr->hdl = &vc->hdl; 433 scr->type = type; 434 scr->mindispoffset = 0; 435 scr->maxdispoffset = 0x10000; 436 vh = &vc->hdl; 437 438 LIST_INIT(&scr->fontset); 439 vga_raster_setup_font(vc, scr); 440 441 if (existing) { 442 int i; 443 444 cpos = vga_6845_read(vh, cursorh) << 8; 445 cpos |= vga_6845_read(vh, cursorl); 446 447 /* make sure we have a valid cursor position */ 448 if (cpos < 0 || cpos >= type->nrows * type->ncols) 449 cpos = 0; 450 451 scr->dispoffset = vga_6845_read(vh, startadrh) << 9; 452 scr->dispoffset |= vga_6845_read(vh, startadrl) << 1; 453 454 /* make sure we have a valid memory offset */ 455 if (scr->dispoffset < scr->mindispoffset || 456 scr->dispoffset > scr->maxdispoffset) 457 scr->dispoffset = scr->mindispoffset; 458 459 scr->mem = boot_scrmem; 460 scr->active = 1; 461 462 /* Save the current screen to memory. XXXBJY assume 80x25 */ 463 for (i = 0; i < 80 * 25; i++) { 464 scr->mem[i].ch = bus_space_read_1(vh->vh_memt, 465 vh->vh_allmemh, 0x18000 + i * 2); 466 scr->mem[i].attr = bus_space_read_1(vh->vh_memt, 467 vh->vh_allmemh, 0x18000 + i * 2 + 1); 468 scr->mem[i].enc = scr->encoding; 469 } 470 471 vga_raster_setscreentype(vc, type); 472 473 /* Clear the entire screen. */ 474 vga_gdc_write(vh, mode, 0x02); 475 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 476 0x4000); 477 478 vga_restore_screen(scr, type, scr->mem); 479 480 /* Delay to prevent the boot screen from being too 481 fast scrolled up. */ 482 delay(1000000); 483 } else { 484 cpos = 0; 485 scr->dispoffset = scr->mindispoffset; 486 scr->mem = NULL; 487 scr->active = 0; 488 } 489 490 scr->cursorrow = cpos / type->ncols; 491 scr->cursorcol = cpos % type->ncols; 492 vga_raster_cursor_init(scr, existing); 493 494 #ifdef __alpha__ 495 if (!vc->hdl.vh_mono) 496 /* 497 * DEC firmware uses a blue background. 498 */ 499 res = vga_raster_allocattr(scr, WSCOL_WHITE, WSCOL_BLUE, 500 WSATTR_WSCOLORS, attrp); 501 else 502 #endif 503 res = vga_raster_allocattr(scr, 0, 0, 0, attrp); 504 #ifdef DIAGNOSTIC 505 if (res) 506 panic("vga_raster_init_screen: attribute botch"); 507 #endif 508 509 vc->nscreens++; 510 LIST_INSERT_HEAD(&vc->screens, scr, next); 511 } 512 513 void 514 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, 515 bus_space_tag_t memt, int type, int quirks, const struct vga_funcs *vf) 516 { 517 int console; 518 struct vga_config *vc; 519 struct wsemuldisplaydev_attach_args aa; 520 521 console = vga_is_console(iot, type); 522 523 if (console) { 524 vc = &vga_console_vc; 525 vga_console_attached = 1; 526 } else { 527 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK); 528 vga_raster_init(vc, iot, memt); 529 } 530 531 vc->vc_type = type; 532 vc->vc_funcs = vf; 533 534 sc->sc_vc = vc; 535 vc->softc = sc; 536 537 aa.console = console; 538 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); 539 aa.accessops = &vga_raster_accessops; 540 aa.accesscookie = vc; 541 542 config_found(&sc->sc_dev, &aa, wsemuldisplaydevprint); 543 } 544 545 int 546 vga_is_console(bus_space_tag_t iot, int type) 547 { 548 if (vgaconsole && 549 !vga_console_attached && 550 iot == vga_console_vc.hdl.vh_iot && 551 (vga_console_type == -1 || (type == vga_console_type))) 552 return (1); 553 return (0); 554 } 555 556 static int 557 vga_get_video(struct vga_config *vc) 558 { 559 560 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0; 561 } 562 563 static void 564 vga_set_video(struct vga_config *vc, int state) 565 { 566 int val; 567 568 vga_ts_write(&vc->hdl, syncreset, 0x01); 569 if (state) { /* unblank screen */ 570 val = vga_ts_read(&vc->hdl, mode); 571 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK); 572 #ifndef VGA_NO_VBLANK 573 val = vga_6845_read(&vc->hdl, mode); 574 vga_6845_write(&vc->hdl, mode, val | 0x80); 575 #endif 576 } else { /* blank screen */ 577 val = vga_ts_read(&vc->hdl, mode); 578 vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK); 579 #ifndef VGA_NO_VBLANK 580 val = vga_6845_read(&vc->hdl, mode); 581 vga_6845_write(&vc->hdl, mode, val & ~0x80); 582 #endif 583 } 584 vga_ts_write(&vc->hdl, syncreset, 0x03); 585 } 586 587 int 588 vga_raster_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p) 589 { 590 struct vga_config *vc = v; 591 const struct vga_funcs *vf = vc->vc_funcs; 592 593 switch (cmd) { 594 case WSDISPLAYIO_GTYPE: 595 *(int *)data = vc->vc_type; 596 return 0; 597 598 case WSDISPLAYIO_GINFO: 599 /* XXX should get detailed hardware information here */ 600 return EPASSTHROUGH; 601 602 case WSDISPLAYIO_GVIDEO: 603 #if 1 604 *(int *)data = (vga_get_video(vc) ? 605 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); 606 return 0; 607 #endif 608 609 case WSDISPLAYIO_SVIDEO: 610 #if 1 611 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 612 return 0; 613 #endif 614 615 case WSDISPLAYIO_GETCMAP: 616 case WSDISPLAYIO_PUTCMAP: 617 case WSDISPLAYIO_GCURPOS: 618 case WSDISPLAYIO_SCURPOS: 619 case WSDISPLAYIO_GCURMAX: 620 case WSDISPLAYIO_GCURSOR: 621 case WSDISPLAYIO_SCURSOR: 622 /* NONE of these operations are by the generic VGA driver. */ 623 return EPASSTHROUGH; 624 } 625 626 if (vc->vc_funcs == NULL) 627 return (EPASSTHROUGH); 628 629 if (vf->vf_ioctl == NULL) 630 return (EPASSTHROUGH); 631 632 return ((*vf->vf_ioctl)(v, cmd, data, flag, p)); 633 } 634 635 static paddr_t 636 vga_raster_mmap(void *v, off_t offset, int prot) 637 { 638 struct vga_config *vc = v; 639 const struct vga_funcs *vf = vc->vc_funcs; 640 641 if (vc->vc_funcs == NULL) 642 return (-1); 643 644 if (vf->vf_mmap == NULL) 645 return (-1); 646 647 return ((*vf->vf_mmap)(v, offset, prot)); 648 } 649 650 int 651 vga_raster_alloc_screen(void *v, const struct wsscreen_descr *type, 652 void **cookiep, int *curxp, int *curyp, long *defattrp) 653 { 654 struct vga_config *vc = v; 655 struct vgascreen *scr; 656 657 if (vc->nscreens == 1) { 658 vc->screens.lh_first->mem = boot_scrmem; 659 } 660 661 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 662 vga_raster_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 663 664 if (vc->nscreens == 1) { 665 scr->active = 1; 666 vc->active = scr; 667 vc->currenttype = type; 668 } else { 669 scr->mem = malloc(sizeof(struct vga_scrmem) * 670 type->ncols * type->nrows, M_DEVBUF, M_WAITOK); 671 vga_raster_eraserows(scr, 0, type->nrows, *defattrp); 672 } 673 674 *cookiep = scr; 675 *curxp = scr->cursorcol; 676 *curyp = scr->cursorrow; 677 678 return (0); 679 } 680 681 void 682 vga_raster_free_screen(void *v, void *cookie) 683 { 684 struct vgascreen *vs = cookie; 685 struct vga_config *vc = vs->cfg; 686 687 LIST_REMOVE(vs, next); 688 if (vs != &vga_console_screen) 689 free(vs, M_DEVBUF); 690 else 691 panic("vga_raster_free_screen: console"); 692 693 if (vc->active == vs) 694 vc->active = 0; 695 } 696 697 int 698 vga_raster_show_screen(void *v, void *cookie, int waitok, 699 void (*cb)(void *, int, int), void *cbarg) 700 { 701 struct vgascreen *scr = cookie, *oldscr; 702 struct vga_config *vc = scr->cfg; 703 704 oldscr = vc->active; /* can be NULL! */ 705 if (scr == oldscr) { 706 return (0); 707 } 708 709 vc->wantedscreen = cookie; 710 vc->switchcb = cb; 711 vc->switchcbarg = cbarg; 712 if (cb) { 713 callout_reset(&vc->vc_switch_callout, 0, 714 (void(*)(void *))vga_switch_screen, vc); 715 return (EAGAIN); 716 } 717 718 vga_switch_screen(vc); 719 return (0); 720 } 721 722 void 723 vga_switch_screen(struct vga_config *vc) 724 { 725 struct vgascreen *scr, *oldscr; 726 struct vga_handle *vh = &vc->hdl; 727 const struct wsscreen_descr *type; 728 729 scr = vc->wantedscreen; 730 if (!scr) { 731 printf("vga_switch_screen: disappeared\n"); 732 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 733 return; 734 } 735 type = scr->type; 736 oldscr = vc->active; /* can be NULL! */ 737 #ifdef DIAGNOSTIC 738 if (oldscr) { 739 if (!oldscr->active) 740 panic("vga_raster_show_screen: not active"); 741 if (oldscr->type != vc->currenttype) 742 panic("vga_raster_show_screen: bad type"); 743 } 744 #endif 745 if (scr == oldscr) { 746 return; 747 } 748 #ifdef DIAGNOSTIC 749 if (scr->active) 750 panic("vga_raster_show_screen: active"); 751 #endif 752 753 if (oldscr) 754 oldscr->active = 0; 755 756 if (vc->currenttype != type) { 757 vga_raster_setscreentype(vc, type); 758 vc->currenttype = type; 759 } 760 761 scr->dispoffset = scr->mindispoffset; 762 763 if (!oldscr || (scr->dispoffset != oldscr->dispoffset)) { 764 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 765 vga_6845_write(vh, startadrl, scr->dispoffset); 766 } 767 768 /* Clear the entire screen. */ 769 vga_gdc_write(vh, mode, 0x02); 770 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x2000); 771 772 scr->active = 1; 773 vga_restore_screen(scr, type, scr->mem); 774 775 vc->active = scr; 776 777 vga_raster_cursor(scr, scr->cursoron, scr->cursorrow, scr->cursorcol); 778 779 vc->wantedscreen = 0; 780 if (vc->switchcb) 781 (*vc->switchcb)(vc->switchcbarg, 0, 0); 782 } 783 784 static int 785 vga_raster_load_font(void *v, void *id, struct wsdisplay_font *data) 786 { 787 /* XXX */ 788 789 return (0); 790 } 791 792 void 793 vga_raster_setup_font(struct vga_config *vc, struct vgascreen *scr) 794 { 795 struct vga_raster_font *vf; 796 struct wsdisplay_font *wf; 797 int cookie; 798 799 LIST_FOREACH(vf, &vc->vc_fontlist, next) { 800 if (wsfont_matches(vf->font, 0, 0, scr->type->fontheight, 0)) { 801 scr->encoding = vf->font->encoding; 802 LIST_INSERT_HEAD(&scr->fontset, vf, next); 803 return; 804 } 805 } 806 807 cookie = wsfont_find(NULL, 0, scr->type->fontheight, 0, 808 WSDISPLAY_FONTORDER_L2R, 0); 809 if (cookie == -1) 810 return; 811 812 if (wsfont_lock(cookie, &wf)) 813 return; 814 815 vf = malloc(sizeof(struct vga_raster_font), M_DEVBUF, M_NOWAIT); 816 if (!vf) { 817 wsfont_unlock(cookie); 818 return; 819 } 820 821 vf->font = wf; 822 scr->encoding = vf->font->encoding; 823 LIST_INSERT_HEAD(&scr->fontset, vf, next); 824 } 825 826 void 827 vga_setup_regs(struct videomode *mode, struct vga_moderegs *regs) 828 { 829 int i; 830 int depth = 4; /* XXXBJY hardcoded for now */ 831 const u_int8_t palette[] = { 832 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 833 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f 834 }; 835 836 /* 837 * Compute hsync and vsync polarity. 838 */ 839 if ((mode->flags & (VID_PHSYNC | VID_NHSYNC)) 840 && (mode->flags & (VID_PVSYNC | VID_NVSYNC))) { 841 regs->miscout = 0x23; 842 if (mode->flags & VID_NHSYNC) 843 regs->miscout |= 0x40; 844 if (mode->flags & VID_NVSYNC) 845 regs->miscout |= 0x80; 846 } else { 847 if (mode->flags & VID_DBLSCAN) 848 mode->vdisplay *= 2; 849 if (mode->vdisplay < 400) 850 regs->miscout = 0xa3; 851 else if (mode->vdisplay < 480) 852 regs->miscout = 0x63; 853 else if (mode->vdisplay < 768) 854 regs->miscout = 0xe3; 855 else 856 regs->miscout = 0x23; 857 } 858 859 /* 860 * Time sequencer 861 */ 862 if (depth == 4) 863 regs->ts[0] = 0x02; 864 else 865 regs->ts[0] = 0x00; 866 if (mode->flags & VID_CLKDIV2) 867 regs->ts[1] = 0x09; 868 else 869 regs->ts[1] = 0x01; 870 regs->ts[2] = 0x0f; 871 regs->ts[3] = 0x00; 872 if (depth < 8) 873 regs->ts[4] = 0x06; 874 else 875 regs->ts[4] = 0x0e; 876 877 /* 878 * CRTC controller 879 */ 880 regs->crtc[0] = (mode->htotal >> 3) - 5; 881 regs->crtc[1] = (mode->hdisplay >> 3) - 1; 882 regs->crtc[2] = (mode->hsync_start >> 3) - 1; 883 regs->crtc[3] = (((mode->hsync_end >> 3) - 1) & 0x1f) | 0x80; 884 regs->crtc[4] = mode->hsync_start >> 3; 885 regs->crtc[5] = ((((mode->hsync_end >> 3) - 1) & 0x20) << 2) 886 | (((mode->hsync_end >> 3)) & 0x1f); 887 regs->crtc[6] = (mode->vtotal - 2) & 0xff; 888 regs->crtc[7] = (((mode->vtotal - 2) & 0x100) >> 8) 889 | (((mode->vdisplay - 1) & 0x100) >> 7) 890 | ((mode->vsync_start & 0x100) >> 6) 891 | (((mode->vsync_start - 1) & 0x100) >> 5) 892 | 0x10 893 | (((mode->vtotal - 2) & 0x200) >> 4) 894 | (((mode->vdisplay - 1) & 0x200) >> 3) 895 | ((mode->vsync_start & 0x200) >> 2); 896 regs->crtc[8] = 0x00; 897 regs->crtc[9] = (((mode->vsync_start - 1) & 0x200) >> 4) | 0x40; 898 if (mode->flags & VID_DBLSCAN) 899 regs->crtc[9] |= 0x80; 900 regs->crtc[10] = 0x00; 901 regs->crtc[11] = 0x00; 902 regs->crtc[12] = 0x00; 903 regs->crtc[13] = 0x00; 904 regs->crtc[14] = 0x00; 905 regs->crtc[15] = 0x00; 906 regs->crtc[16] = mode->vsync_start & 0xff; 907 regs->crtc[17] = (mode->vsync_end & 0x0f) | 0x20; 908 regs->crtc[18] = (mode->vdisplay - 1) & 0xff; 909 regs->crtc[19] = mode->hdisplay >> 4; /* XXXBJY */ 910 regs->crtc[20] = 0x00; 911 regs->crtc[21] = (mode->vsync_start - 1) & 0xff; 912 regs->crtc[22] = (mode->vsync_end - 1) & 0xff; 913 if (depth < 8) 914 regs->crtc[23] = 0xe3; 915 else 916 regs->crtc[23] = 0xc3; 917 regs->crtc[24] = 0xff; 918 919 /* 920 * Graphics display controller 921 */ 922 regs->gdc[0] = 0x00; 923 regs->gdc[1] = 0x00; 924 regs->gdc[2] = 0x00; 925 regs->gdc[3] = 0x00; 926 regs->gdc[4] = 0x00; 927 if (depth == 4) 928 regs->gdc[5] = 0x02; 929 else 930 regs->gdc[5] = 0x40; 931 regs->gdc[6] = 0x01; 932 regs->gdc[7] = 0x0f; 933 regs->gdc[8] = 0xff; 934 935 /* 936 * Attribute controller 937 */ 938 /* Set palette registers. */ 939 for (i = 0; i < 16; i++) 940 regs->atc[i] = palette[i]; 941 if (depth == 4) 942 regs->atc[16] = 0x01; /* XXXBJY was 0x81 in XFree86 */ 943 else 944 regs->atc[16] = 0x41; 945 regs->atc[17] = 0x00; /* XXXBJY just a guess */ 946 regs->atc[18] = 0x0f; 947 regs->atc[19] = 0x00; 948 regs->atc[20] = 0x00; 949 } 950 951 void 952 vga_set_mode(struct vga_handle *vh, struct vga_moderegs *regs) 953 { 954 int i; 955 956 /* Disable display. */ 957 vga_ts_write(vh, mode, vga_ts_read(vh, mode) | VGA_TS_MODE_BLANK); 958 959 /* Write misc output register. */ 960 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAW, 961 regs->miscout); 962 963 /* Set synchronous reset. */ 964 vga_ts_write(vh, syncreset, 0x01); 965 vga_ts_write(vh, mode, regs->ts[1] | VGA_TS_MODE_BLANK); 966 for (i = 2; i < VGA_TS_NREGS; i++) 967 _vga_ts_write(vh, i, regs->ts[i]); 968 /* Clear synchronous reset. */ 969 vga_ts_write(vh, syncreset, 0x03); 970 971 /* Unprotect CRTC registers 0-7. */ 972 vga_6845_write(vh, vsynce, vga_6845_read(vh, vsynce) & ~0x80); 973 /* Write CRTC registers. */ 974 for (i = 0; i < MC6845_NREGS; i++) 975 _vga_6845_write(vh, i, regs->crtc[i]); 976 977 /* Write graphics display registers. */ 978 for (i = 0; i < VGA_GDC_NREGS; i++) 979 _vga_gdc_write(vh, i, regs->gdc[i]); 980 981 /* Write attribute controller registers. */ 982 for (i = 0; i < VGA_ATC_NREGS; i++) 983 _vga_attr_write(vh, i, regs->atc[i]); 984 985 /* Enable display. */ 986 vga_ts_write(vh, mode, vga_ts_read(vh, mode) & ~VGA_TS_MODE_BLANK); 987 } 988 989 void 990 vga_raster_cursor_init(struct vgascreen *scr, int existing) 991 { 992 struct vga_handle *vh = scr->hdl; 993 bus_space_tag_t memt; 994 bus_space_handle_t memh; 995 int off; 996 997 if (existing) { 998 /* 999 * This is the first screen. At this point, scr->active is 1000 * false, so we can't use vga_raster_cursor() to do this. 1001 */ 1002 memt = vh->vh_memt; 1003 memh = vh->vh_memh; 1004 off = (scr->cursorrow * scr->type->ncols + scr->cursorcol) + 1005 scr->dispoffset / 8; 1006 1007 scr->cursortmp = scr->mem[off]; 1008 vga_raster_putchar(scr, scr->cursorrow, scr->cursorcol, 1009 scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); 1010 } else { 1011 scr->cursortmp.ch = 0; 1012 scr->cursortmp.attr = 0; 1013 scr->cursortmp.second = 0; 1014 scr->cursortmp.enc = scr->encoding; 1015 } 1016 1017 scr->cursoron = 1; 1018 } 1019 1020 void 1021 vga_raster_cursor(void *id, int on, int row, int col) 1022 { 1023 struct vgascreen *scr = id; 1024 int off, tmp; 1025 1026 /* Remove old cursor image */ 1027 if (scr->cursoron) { 1028 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1029 if (scr->active) { 1030 tmp = scr->encoding; 1031 scr->encoding = scr->cursortmp.enc; 1032 if (scr->cursortmp.second) 1033 vga_raster_putchar(id, scr->cursorrow, 1034 scr->cursorcol - 1, scr->cursortmp.ch, 1035 scr->cursortmp.attr); 1036 else 1037 vga_raster_putchar(id, scr->cursorrow, 1038 scr->cursorcol, scr->cursortmp.ch, 1039 scr->cursortmp.attr); 1040 scr->encoding = tmp; 1041 } 1042 } 1043 1044 scr->cursorrow = row; 1045 scr->cursorcol = col; 1046 1047 if ((scr->cursoron = on) == 0) 1048 return; 1049 1050 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1051 scr->cursortmp = scr->mem[off]; 1052 if (scr->active) { 1053 tmp = scr->encoding; 1054 scr->encoding = scr->cursortmp.enc; 1055 if (scr->cursortmp.second) 1056 vga_raster_putchar(id, scr->cursorrow, 1057 scr->cursorcol - 1, scr->cursortmp.ch, 1058 scr->cursortmp.attr ^ 0x77); 1059 else 1060 vga_raster_putchar(id, scr->cursorrow, 1061 scr->cursorcol, scr->cursortmp.ch, 1062 scr->cursortmp.attr ^ 0x77); 1063 scr->encoding = tmp; 1064 } 1065 } 1066 1067 static int 1068 vga_raster_mapchar(void *id, int uni, u_int *index) 1069 { 1070 struct vgascreen *scr = id; 1071 1072 if (scr->encoding == WSDISPLAY_FONTENC_IBM) 1073 return pcdisplay_mapchar(id, uni, index); 1074 else { 1075 *index = uni; 1076 return 5; 1077 } 1078 } 1079 1080 void 1081 vga_raster_putchar(void *id, int row, int col, u_int c, long attr) 1082 { 1083 struct vgascreen *scr = id; 1084 int off; 1085 struct vga_raster_font *fs; 1086 u_int tmp_ch; 1087 1088 off = row * scr->type->ncols + col; 1089 1090 LIST_FOREACH(fs, &scr->fontset, next) { 1091 if ((scr->encoding == fs->font->encoding) && 1092 (c >= fs->font->firstchar) && 1093 (c < fs->font->firstchar + fs->font->numchars) && 1094 (scr->type->fontheight == fs->font->fontheight)) { 1095 if (scr->active) { 1096 tmp_ch = c - fs->font->firstchar; 1097 _vga_raster_putchar(scr, row, col, tmp_ch, 1098 attr, fs); 1099 } 1100 1101 scr->mem[off].ch = c; 1102 scr->mem[off].attr = attr; 1103 scr->mem[off].second = 0; 1104 scr->mem[off].enc = fs->font->encoding; 1105 1106 if (fs->font->stride == 2) { 1107 scr->mem[off + 1].ch = c; 1108 scr->mem[off + 1].attr = attr; 1109 scr->mem[off + 1].second = 1; 1110 scr->mem[off + 1].enc = fs->font->encoding; 1111 } 1112 1113 return; 1114 } 1115 } 1116 1117 /* 1118 * No match found. 1119 */ 1120 if (scr->active) 1121 /* 1122 * Put a single width space character no matter what the 1123 * actual width of the character is. 1124 */ 1125 _vga_raster_putchar(scr, row, col, ' ', attr, 1126 &vga_console_fontset_ascii); 1127 scr->mem[off].ch = c; 1128 scr->mem[off].attr = attr; 1129 scr->mem[off].second = 0; 1130 scr->mem[off].enc = scr->encoding; 1131 } 1132 1133 static void 1134 _vga_raster_putchar(void *id, int row, int col, u_int c, long attr, 1135 struct vga_raster_font *fs) 1136 { 1137 struct vgascreen *scr = id; 1138 struct vga_handle *vh = scr->hdl; 1139 bus_space_tag_t memt = vh->vh_memt; 1140 bus_space_handle_t memh = vh->vh_memh; 1141 int i; 1142 int rasoff, rasoff2; 1143 int fheight = scr->type->fontheight; 1144 volatile u_int8_t dummy, pattern; 1145 u_int8_t fgcolor, bgcolor; 1146 1147 rasoff = scr->dispoffset + row * scr->type->ncols * fheight + col; 1148 rasoff2 = rasoff; 1149 1150 #if 0 1151 bgcolor = bgansitopc[attr >> 4]; 1152 fgcolor = fgansitopc[attr & 0x0f]; 1153 #else 1154 bgcolor = ((attr >> 4) & 0x0f); 1155 fgcolor = attr & 0x0f; 1156 #endif 1157 1158 if (fs->font->stride == 1) { 1159 /* Paint background. */ 1160 vga_gdc_write(vh, mode, 0x02); 1161 for (i = 0; i < fheight; i++) { 1162 bus_space_write_1(memt, memh, rasoff, bgcolor); 1163 rasoff += scr->type->ncols; 1164 } 1165 1166 /* Draw a single width character. */ 1167 vga_gdc_write(vh, mode, 0x03); 1168 vga_gdc_write(vh, setres, fgcolor); 1169 for (i = 0; i < fheight; i++) { 1170 pattern = ((u_int8_t *)fs->font->data)[c * fheight + i]; 1171 /* When pattern is 0, skip output for speed-up. */ 1172 if (pattern != 0) { 1173 dummy = bus_space_read_1(memt, memh, rasoff2); 1174 bus_space_write_1(memt, memh, rasoff2, pattern); 1175 } 1176 rasoff2 += scr->type->ncols; 1177 } 1178 } else if (fs->font->stride == 2) { 1179 /* Paint background. */ 1180 vga_gdc_write(vh, mode, 0x02); 1181 for (i = 0; i < fheight; i++) { 1182 bus_space_write_1(memt, memh, rasoff, bgcolor); 1183 bus_space_write_1(memt, memh, rasoff + 1, bgcolor); 1184 rasoff += scr->type->ncols; 1185 } 1186 1187 /* Draw a double width character. */ 1188 vga_gdc_write(vh, mode, 0x03); 1189 vga_gdc_write(vh, setres, fgcolor); 1190 for (i = 0; i < fheight; i++) { 1191 pattern = ((u_int8_t *)fs->font->data) 1192 [(c * fheight + i) * 2]; 1193 if (pattern != 0) { 1194 dummy = bus_space_read_1(memt, memh, rasoff2); 1195 bus_space_write_1(memt, memh, rasoff2, pattern); 1196 } 1197 pattern = ((u_int8_t *)fs->font->data) 1198 [(c * fheight + i) * 2 + 1]; 1199 if (pattern != 0) { 1200 rasoff2++; 1201 dummy = bus_space_read_1(memt, memh, rasoff2); 1202 bus_space_write_1(memt, memh, rasoff2, pattern); 1203 rasoff2--; 1204 } 1205 rasoff2 += scr->type->ncols; 1206 } 1207 } 1208 } 1209 1210 void 1211 vga_raster_copycols(void *id, int row, int srccol, int dstcol, int ncols) 1212 { 1213 struct vgascreen *scr = id; 1214 struct vga_handle *vh = scr->hdl; 1215 bus_space_tag_t memt = vh->vh_memt; 1216 bus_space_handle_t memh = vh->vh_memh; 1217 bus_size_t srcoff, dstoff; 1218 bus_size_t rassrcoff, rasdstoff; 1219 int i; 1220 int fheight = scr->type->fontheight; 1221 1222 srcoff = row * scr->type->ncols + srccol; 1223 dstoff = row * scr->type->ncols + dstcol; 1224 rassrcoff = scr->dispoffset + row * scr->type->ncols * fheight + srccol; 1225 rasdstoff = scr->dispoffset + row * scr->type->ncols * fheight + dstcol; 1226 1227 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1228 ncols * sizeof(struct vga_scrmem)); 1229 1230 vga_gdc_write(vh, mode, 0x01); 1231 if (scr->active) { 1232 for (i = 0; i < fheight; i++) { 1233 bus_space_copy_region_1(memt, memh, 1234 rassrcoff + i * scr->type->ncols, memh, 1235 rasdstoff + i * scr->type->ncols, ncols); 1236 } 1237 } 1238 } 1239 1240 void 1241 vga_raster_erasecols(void *id, int row, int startcol, int ncols, long fillattr) 1242 { 1243 struct vgascreen *scr = id; 1244 int i; 1245 1246 if (scr->active == 0) 1247 return; 1248 1249 for (i = startcol; i < startcol + ncols; i++) 1250 vga_raster_putchar(id, row, i, ' ', fillattr); 1251 } 1252 1253 void 1254 vga_raster_copyrows(void *id, int srcrow, int dstrow, int nrows) 1255 { 1256 struct vgascreen *scr = id; 1257 struct vga_handle *vh = scr->hdl; 1258 bus_space_tag_t memt = vh->vh_memt; 1259 bus_space_handle_t memh = vh->vh_memh; 1260 int ncols; 1261 bus_size_t srcoff, dstoff; 1262 bus_size_t rassrcoff, rasdstoff; 1263 int fheight; 1264 1265 ncols = scr->type->ncols; 1266 fheight = scr->type->fontheight; 1267 1268 srcoff = srcrow * ncols; 1269 dstoff = dstrow * ncols; 1270 rassrcoff = srcoff * fheight; 1271 rasdstoff = dstoff * fheight; 1272 1273 if (scr->active) { 1274 vga_gdc_write(vh, mode, 0x01); 1275 if (dstrow == 0 && (srcrow + nrows == scr->type->nrows)) { 1276 int cursoron = scr->cursoron; 1277 1278 if (cursoron) 1279 /* Disable cursor. */ 1280 vga_raster_cursor(scr, 0, 1281 scr->cursorrow, scr->cursorcol); 1282 1283 /* scroll up whole screen */ 1284 if ((scr->dispoffset + srcrow * ncols * fheight) 1285 <= scr->maxdispoffset) 1286 scr->dispoffset += srcrow * ncols * fheight; 1287 else { 1288 bus_space_copy_region_1(memt, memh, 1289 scr->dispoffset + rassrcoff, 1290 memh, scr->mindispoffset, 1291 nrows * ncols * fheight); 1292 scr->dispoffset = scr->mindispoffset; 1293 } 1294 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 1295 vga_6845_write(vh, startadrl, scr->dispoffset); 1296 1297 if (cursoron) 1298 /* Enable cursor. */ 1299 vga_raster_cursor(scr, 1, scr->cursorrow, 1300 scr->cursorcol); 1301 } else 1302 bus_space_copy_region_1(memt, memh, 1303 scr->dispoffset + rassrcoff, memh, 1304 scr->dispoffset + rasdstoff, 1305 nrows * ncols * fheight); 1306 } 1307 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1308 nrows * ncols * sizeof(struct vga_scrmem)); 1309 } 1310 1311 void 1312 vga_raster_eraserows(void *id, int startrow, int nrows, long fillattr) 1313 { 1314 struct vgascreen *scr = id; 1315 struct vga_handle *vh = scr->hdl; 1316 bus_space_tag_t memt = vh->vh_memt; 1317 bus_space_handle_t memh = vh->vh_memh; 1318 bus_size_t off, count; 1319 bus_size_t rasoff, rascount; 1320 int i; 1321 1322 off = startrow * scr->type->ncols; 1323 count = nrows * scr->type->ncols; 1324 rasoff = off * scr->type->fontheight; 1325 rascount = count * scr->type->fontheight; 1326 1327 if (scr->active) { 1328 /* Paint background. */ 1329 vga_gdc_write(vh, mode, 0x02); 1330 if (scr->type->ncols % 4 == 0) 1331 /* We can speed up I/O */ 1332 for (i = rasoff; i < rasoff + rascount; i += 4) 1333 bus_space_write_4(memt, memh, 1334 scr->dispoffset + i, fillattr >> 4); 1335 else 1336 for (i = rasoff; i < rasoff + rascount; i += 2) 1337 bus_space_write_2(memt, memh, 1338 scr->dispoffset + i, fillattr >> 4); 1339 } 1340 for (i = 0; i < count; i++) { 1341 scr->mem[off + i].ch = ' '; 1342 scr->mem[off + i].attr = fillattr; 1343 scr->mem[off + i].second = 0; 1344 scr->mem[off + i].enc = scr->encoding; 1345 } 1346 } 1347 1348 static int 1349 vga_raster_allocattr(void *id, int fg, int bg, int flags, long *attrp) 1350 { 1351 struct vgascreen *scr = id; 1352 struct vga_config *vc = scr->cfg; 1353 1354 if (vc->hdl.vh_mono) { 1355 if (flags & WSATTR_WSCOLORS) 1356 return (EINVAL); 1357 if (flags & WSATTR_REVERSE) 1358 *attrp = 0x70; 1359 else 1360 *attrp = 0x07; 1361 if (flags & WSATTR_UNDERLINE) 1362 *attrp |= FG_UNDERLINE; 1363 if (flags & WSATTR_HILIT) 1364 *attrp |= FG_INTENSE; 1365 } else { 1366 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1367 return (EINVAL); 1368 if (flags & WSATTR_WSCOLORS) 1369 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1370 else 1371 *attrp = 7; 1372 if (flags & WSATTR_HILIT) 1373 *attrp += 8; 1374 } 1375 if (flags & WSATTR_BLINK) 1376 *attrp |= FG_BLINK; 1377 return (0); 1378 } 1379 1380 void 1381 vga_restore_screen(struct vgascreen *scr, 1382 const struct wsscreen_descr *type, struct vga_scrmem *mem) 1383 { 1384 int i, j, off, tmp; 1385 1386 tmp = scr->encoding; 1387 for (i = 0; i < type->nrows; i++) { 1388 for (j = 0; j < type->ncols; j++) { 1389 off = i * type->ncols + j; 1390 if (mem[off].second != 1) { 1391 scr->encoding = mem[off].enc; 1392 vga_raster_putchar(scr, i, j, mem[off].ch, 1393 mem[off].attr); 1394 } 1395 } 1396 } 1397 scr->encoding = tmp; 1398 } 1399 1400 void 1401 vga_raster_setscreentype(struct vga_config *vc, 1402 const struct wsscreen_descr *type) 1403 { 1404 struct vga_handle *vh = &vc->hdl; 1405 struct vga_moderegs moderegs; 1406 1407 vga_setup_regs((struct videomode *)type->modecookie, &moderegs); 1408 vga_set_mode(vh, &moderegs); 1409 } 1410