1 /* $NetBSD: vga_raster.c,v 1.22 2006/04/26 16:09:22 rpaulo 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 1.22 2006/04/26 16:09:22 rpaulo Exp $"); 60 61 #include "opt_wsmsgattrs.h" /* for WSDISPLAY_CUSTOM_OUTPUT */ 62 63 #include <sys/param.h> 64 #include <sys/systm.h> 65 #include <sys/callout.h> 66 #include <sys/kernel.h> 67 #include <sys/device.h> 68 #include <sys/malloc.h> 69 #include <sys/queue.h> 70 #include <machine/bus.h> 71 72 #include <dev/ic/mc6845reg.h> 73 #include <dev/ic/pcdisplayvar.h> 74 #include <dev/ic/vgareg.h> 75 #include <dev/ic/vgavar.h> 76 #include <dev/ic/videomode.h> 77 78 #include <dev/wscons/wsdisplayvar.h> 79 #include <dev/wscons/wsconsio.h> 80 #include <dev/wsfont/wsfont.h> 81 82 #include <dev/ic/pcdisplay.h> 83 84 int vga_no_builtinfont = 0; 85 86 u_int8_t builtinfont_data[256 * 16]; 87 88 struct wsdisplay_font builtinfont = { 89 "builtin", /* typeface name */ 90 0, /* firstchar */ 91 256, /* numchars */ 92 WSDISPLAY_FONTENC_IBM, /* encoding */ 93 8, /* width */ 94 16, /* height */ 95 1, /* stride */ 96 WSDISPLAY_FONTORDER_L2R, /* bit order */ 97 WSDISPLAY_FONTORDER_L2R, /* byte order */ 98 builtinfont_data /* data */ 99 }; 100 101 struct vga_scrmem { 102 u_int16_t ch; 103 u_int8_t attr; 104 u_int8_t second; /* XXXBJY should be u_int8_t len; */ 105 u_int8_t enc; 106 }; 107 108 #ifdef VGA_CONSOLE_SCREENTYPE 109 #define VGA_SCRMEM_SIZE (80 * 30) 110 #else 111 #define VGA_SCRMEM_SIZE (80 * 25) 112 #endif 113 114 struct vga_scrmem boot_scrmem[VGA_SCRMEM_SIZE]; 115 116 struct vga_raster_font { 117 LIST_ENTRY(vga_raster_font) next; 118 struct wsdisplay_font *font; 119 }; 120 121 struct vgascreen { 122 LIST_ENTRY(vgascreen) next; 123 struct vga_config *cfg; 124 struct vga_handle *hdl; 125 const struct wsscreen_descr *type; 126 127 int active; 128 struct vga_scrmem *mem; 129 int encoding; 130 131 int dispoffset; 132 int mindispoffset; 133 int maxdispoffset; 134 135 int cursoron; /* Is cursor displayed? */ 136 int cursorcol; /* Current cursor column */ 137 int cursorrow; /* Current cursor row */ 138 struct vga_scrmem cursortmp; 139 int cursorstride; 140 141 LIST_HEAD(, vga_raster_font) fontset; 142 }; 143 144 struct vga_moderegs { 145 u_int8_t miscout; /* Misc. output */ 146 u_int8_t crtc[MC6845_NREGS]; /* CRTC controller */ 147 u_int8_t atc[VGA_ATC_NREGS]; /* Attribute controller */ 148 u_int8_t ts[VGA_TS_NREGS]; /* Time sequencer */ 149 u_int8_t gdc[VGA_GDC_NREGS]; /* Graphics display controller */ 150 }; 151 152 static int vgaconsole, vga_console_type, vga_console_attached; 153 static struct vgascreen vga_console_screen; 154 static struct vga_config vga_console_vc; 155 static struct vga_raster_font vga_console_fontset_ascii; 156 static struct videomode vga_console_modes[2] = { 157 /* 640x400 for 80x25, 80x40 and 80x50 modes */ 158 { 159 25175, 640, 664, 760, 800, 400, 409, 411, 450, 0 160 }, 161 /* 640x480 for 80x30 mode */ 162 { 163 25175, 640, 664, 760, 800, 480, 491, 493, 525, 0 164 } 165 }; 166 167 static void vga_raster_init(struct vga_config *, bus_space_tag_t, 168 bus_space_tag_t); 169 static void vga_raster_init_screen(struct vga_config *, struct vgascreen *, 170 const struct wsscreen_descr *, int, long *); 171 static void vga_raster_setup_font(struct vga_config *, struct vgascreen *); 172 static void vga_setup_regs(struct videomode *, struct vga_moderegs *); 173 static void vga_set_mode(struct vga_handle *, struct vga_moderegs *); 174 static void vga_restore_screen(struct vgascreen *, 175 const struct wsscreen_descr *, struct vga_scrmem *); 176 static void vga_raster_cursor_init(struct vgascreen *, int); 177 static void _vga_raster_putchar(void *, int, int, u_int, long, 178 struct vga_raster_font *); 179 180 static void vga_raster_cursor(void *, int, int, int); 181 static int vga_raster_mapchar(void *, int, u_int *); 182 static void vga_raster_putchar(void *, int, int, u_int, long); 183 static void vga_raster_copycols(void *, int, int, int, int); 184 static void vga_raster_erasecols(void *, int, int, int, long); 185 static void vga_raster_copyrows(void *, int, int, int); 186 static void vga_raster_eraserows(void *, int, int, long); 187 static int vga_raster_allocattr(void *, int, int, int, long *); 188 #ifdef WSDISPLAY_CUSTOM_OUTPUT 189 static void vga_raster_replaceattr(void *, long, long); 190 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 191 192 const struct wsdisplay_emulops vga_raster_emulops = { 193 vga_raster_cursor, 194 vga_raster_mapchar, 195 vga_raster_putchar, 196 vga_raster_copycols, 197 vga_raster_erasecols, 198 vga_raster_copyrows, 199 vga_raster_eraserows, 200 vga_raster_allocattr, 201 #ifdef WSDISPLAY_CUSTOM_OUTPUT 202 vga_raster_replaceattr, 203 #else /* WSDISPLAY_CUSTOM_OUTPUT */ 204 NULL, 205 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 206 }; 207 208 /* 209 * translate WS(=ANSI) color codes to standard pc ones 210 */ 211 static const unsigned char fgansitopc[] = { 212 #ifdef __alpha__ 213 /* 214 * XXX DEC HAS SWITCHED THE CODES FOR BLUE AND RED!!! 215 * XXX We should probably not bother with this 216 * XXX (reinitialize the palette registers). 217 */ 218 FG_BLACK, FG_BLUE, FG_GREEN, FG_CYAN, FG_RED, 219 FG_MAGENTA, FG_BROWN, FG_LIGHTGREY 220 #else 221 FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE, 222 FG_MAGENTA, FG_CYAN, FG_LIGHTGREY 223 #endif 224 }, bgansitopc[] = { 225 #ifdef __alpha__ 226 BG_BLACK, BG_BLUE, BG_GREEN, BG_CYAN, BG_RED, 227 BG_MAGENTA, BG_BROWN, BG_LIGHTGREY 228 #else 229 BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE, 230 BG_MAGENTA, BG_CYAN, BG_LIGHTGREY 231 #endif 232 }; 233 234 const struct wsscreen_descr vga_25lscreen = { 235 "80x25", 80, 25, 236 &vga_raster_emulops, 237 8, 16, 238 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 239 &vga_console_modes[0] 240 }, vga_25lscreen_mono = { 241 "80x25", 80, 25, 242 &vga_raster_emulops, 243 8, 16, 244 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 245 &vga_console_modes[0] 246 }, vga_30lscreen = { 247 "80x30", 80, 30, 248 &vga_raster_emulops, 249 8, 16, 250 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 251 &vga_console_modes[1] 252 }, vga_30lscreen_mono = { 253 "80x30", 80, 30, 254 &vga_raster_emulops, 255 8, 16, 256 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 257 &vga_console_modes[1] 258 }, vga_40lscreen = { 259 "80x40", 80, 40, 260 &vga_raster_emulops, 261 8, 10, 262 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 263 &vga_console_modes[0] 264 }, vga_40lscreen_mono = { 265 "80x40", 80, 40, 266 &vga_raster_emulops, 267 8, 10, 268 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 269 &vga_console_modes[0] 270 }, vga_50lscreen = { 271 "80x50", 80, 50, 272 &vga_raster_emulops, 273 8, 8, 274 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 275 &vga_console_modes[0] 276 }, vga_50lscreen_mono = { 277 "80x50", 80, 50, 278 &vga_raster_emulops, 279 8, 8, 280 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 281 &vga_console_modes[0] 282 }; 283 284 const struct wsscreen_descr *_vga_scrlist[] = { 285 &vga_25lscreen, 286 &vga_30lscreen, 287 &vga_40lscreen, 288 &vga_50lscreen, 289 }, *_vga_scrlist_mono[] = { 290 &vga_25lscreen_mono, 291 &vga_30lscreen_mono, 292 &vga_40lscreen_mono, 293 &vga_50lscreen_mono, 294 }; 295 296 const struct wsscreen_list vga_screenlist = { 297 sizeof(_vga_scrlist) / sizeof(struct wsscreen_descr *), 298 _vga_scrlist 299 }, vga_screenlist_mono = { 300 sizeof(_vga_scrlist_mono) / sizeof(struct wsscreen_descr *), 301 _vga_scrlist_mono 302 }; 303 304 static int vga_raster_ioctl(void *, void *, u_long, caddr_t, int, 305 struct lwp *); 306 static paddr_t vga_raster_mmap(void *, void *, off_t, int); 307 static int vga_raster_alloc_screen(void *, const struct wsscreen_descr *, 308 void **, int *, int *, long *); 309 static void vga_raster_free_screen(void *, void *); 310 static int vga_raster_show_screen(void *, void *, int, 311 void (*)(void *, int, int), void *); 312 static int vga_raster_load_font(void *, void *, struct wsdisplay_font *); 313 314 static void vga_switch_screen(struct vga_config *); 315 static void vga_raster_setscreentype(struct vga_config *, 316 const struct wsscreen_descr *); 317 318 const struct wsdisplay_accessops vga_raster_accessops = { 319 vga_raster_ioctl, 320 vga_raster_mmap, 321 vga_raster_alloc_screen, 322 vga_raster_free_screen, 323 vga_raster_show_screen, 324 vga_raster_load_font, 325 }; 326 327 int 328 vga_cnattach(bus_space_tag_t iot, bus_space_tag_t memt, int type, int check) 329 { 330 long defattr; 331 const struct wsscreen_descr *scr; 332 #ifdef VGA_CONSOLE_SCREENTYPE 333 const char *typestr = NULL; 334 #endif 335 336 if (check && !vga_common_probe(iot, memt)) 337 return (ENXIO); 338 339 /* set up bus-independent VGA configuration */ 340 vga_raster_init(&vga_console_vc, iot, memt); 341 #ifdef VGA_CONSOLE_SCREENTYPE 342 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 343 &vga_screenlist_mono : &vga_screenlist, VGA_CONSOLE_SCREENTYPE); 344 if (!scr) 345 /* Invalid screen type, continue with the default mode. */ 346 typestr = "80x25"; 347 else if (scr->nrows > 30) 348 /* Unsupported screen type, try 80x30. */ 349 typestr = "80x30"; 350 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 351 &vga_screenlist_mono : &vga_screenlist, typestr); 352 if (scr != vga_console_vc.currenttype) 353 vga_console_vc.currenttype = scr; 354 #else 355 scr = vga_console_vc.currenttype; 356 #endif 357 vga_raster_init_screen(&vga_console_vc, &vga_console_screen, scr, 1, 358 &defattr); 359 360 vga_console_screen.active = 1; 361 vga_console_vc.active = &vga_console_screen; 362 363 wsdisplay_cnattach(scr, &vga_console_screen, 364 vga_console_screen.cursorcol, vga_console_screen.cursorrow, 365 defattr); 366 367 vgaconsole = 1; 368 vga_console_type = type; 369 return (0); 370 } 371 372 void 373 vga_raster_init(struct vga_config *vc, bus_space_tag_t iot, 374 bus_space_tag_t memt) 375 { 376 struct vga_handle *vh = &vc->hdl; 377 u_int8_t mor; 378 struct vga_raster_font *vf; 379 380 vh->vh_iot = iot; 381 vh->vh_memt = memt; 382 383 if (bus_space_map(vh->vh_iot, 0x3c0, 0x10, 0, &vh->vh_ioh_vga)) 384 panic("vga_raster_init: couldn't map vga io"); 385 386 /* read "misc output register" */ 387 mor = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAR); 388 vh->vh_mono = !(mor & 1); 389 390 if (bus_space_map(vh->vh_iot, (vh->vh_mono ? 0x3b0 : 0x3d0), 0x10, 0, 391 &vh->vh_ioh_6845)) 392 panic("vga_raster_init: couldn't map 6845 io"); 393 394 if (bus_space_map(vh->vh_memt, 0xa0000, 0x20000, 0, &vh->vh_allmemh)) 395 panic("vga_raster_init: couldn't map memory"); 396 397 if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh, 0, 0x10000, 398 &vh->vh_memh)) 399 panic("vga_raster_init: mem subrange failed"); 400 401 /* should only reserve the space (no need to map - save KVM) */ 402 vc->vc_biostag = memt; 403 if (bus_space_map(vc->vc_biostag, 0xc0000, 0x8000, 0, &vc->vc_bioshdl)) 404 vc->vc_biosmapped = 0; 405 else 406 vc->vc_biosmapped = 1; 407 408 vc->nscreens = 0; 409 LIST_INIT(&vc->screens); 410 vc->active = NULL; 411 vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen; 412 callout_init(&vc->vc_switch_callout); 413 414 wsfont_init(); 415 vc->nfonts = 1; 416 LIST_INIT(&vc->vc_fontlist); 417 vf = &vga_console_fontset_ascii; 418 if (vga_no_builtinfont) { 419 struct wsdisplay_font *wf; 420 int cookie; 421 422 /* prefer 8x16 pixel font */ 423 cookie = wsfont_find(NULL, 8, 16, 0, WSDISPLAY_FONTORDER_L2R, 424 0); 425 if (cookie == -1) 426 cookie = wsfont_find(NULL, 0, 0, 0, 427 WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R); 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 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 = 0x10000; 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 #ifdef DIAGNOSTIC 516 if (res) 517 panic("vga_raster_init_screen: attribute botch"); 518 #endif 519 520 vc->nscreens++; 521 LIST_INSERT_HEAD(&vc->screens, scr, next); 522 } 523 524 void 525 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, 526 bus_space_tag_t memt, int type, int quirks, const struct vga_funcs *vf) 527 { 528 int console; 529 struct vga_config *vc; 530 struct wsemuldisplaydev_attach_args aa; 531 532 console = vga_is_console(iot, type); 533 534 if (console) { 535 vc = &vga_console_vc; 536 vga_console_attached = 1; 537 } else { 538 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK); 539 vga_raster_init(vc, iot, memt); 540 } 541 542 vc->vc_type = type; 543 vc->vc_funcs = vf; 544 545 sc->sc_vc = vc; 546 vc->softc = sc; 547 548 aa.console = console; 549 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); 550 aa.accessops = &vga_raster_accessops; 551 aa.accesscookie = vc; 552 553 config_found(&sc->sc_dev, &aa, wsemuldisplaydevprint); 554 } 555 556 int 557 vga_is_console(bus_space_tag_t iot, int type) 558 { 559 if (vgaconsole && 560 !vga_console_attached && 561 iot == vga_console_vc.hdl.vh_iot && 562 (vga_console_type == -1 || (type == vga_console_type))) 563 return (1); 564 return (0); 565 } 566 567 static int 568 vga_get_video(struct vga_config *vc) 569 { 570 571 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0; 572 } 573 574 static void 575 vga_set_video(struct vga_config *vc, int state) 576 { 577 int val; 578 579 vga_ts_write(&vc->hdl, syncreset, 0x01); 580 if (state) { /* unblank screen */ 581 val = vga_ts_read(&vc->hdl, mode); 582 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK); 583 #ifndef VGA_NO_VBLANK 584 val = vga_6845_read(&vc->hdl, mode); 585 vga_6845_write(&vc->hdl, mode, val | 0x80); 586 #endif 587 } else { /* blank screen */ 588 val = vga_ts_read(&vc->hdl, mode); 589 vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK); 590 #ifndef VGA_NO_VBLANK 591 val = vga_6845_read(&vc->hdl, mode); 592 vga_6845_write(&vc->hdl, mode, val & ~0x80); 593 #endif 594 } 595 vga_ts_write(&vc->hdl, syncreset, 0x03); 596 } 597 598 int 599 vga_raster_ioctl(void *v, void *vs, u_long cmd, caddr_t data, int flag, 600 struct lwp *l) 601 { 602 struct vga_config *vc = v; 603 const struct vga_funcs *vf = vc->vc_funcs; 604 605 switch (cmd) { 606 case WSDISPLAYIO_GTYPE: 607 *(int *)data = vc->vc_type; 608 return 0; 609 610 case WSDISPLAYIO_GINFO: 611 /* XXX should get detailed hardware information here */ 612 return EPASSTHROUGH; 613 614 case WSDISPLAYIO_GVIDEO: 615 #if 1 616 *(int *)data = (vga_get_video(vc) ? 617 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); 618 return 0; 619 #endif 620 621 case WSDISPLAYIO_SVIDEO: 622 #if 1 623 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 624 return 0; 625 #endif 626 627 case WSDISPLAYIO_GETCMAP: 628 case WSDISPLAYIO_PUTCMAP: 629 case WSDISPLAYIO_GCURPOS: 630 case WSDISPLAYIO_SCURPOS: 631 case WSDISPLAYIO_GCURMAX: 632 case WSDISPLAYIO_GCURSOR: 633 case WSDISPLAYIO_SCURSOR: 634 /* NONE of these operations are by the generic VGA driver. */ 635 return EPASSTHROUGH; 636 } 637 638 if (vc->vc_funcs == NULL) 639 return (EPASSTHROUGH); 640 641 if (vf->vf_ioctl == NULL) 642 return (EPASSTHROUGH); 643 644 return ((*vf->vf_ioctl)(v, cmd, data, flag, l)); 645 } 646 647 static paddr_t 648 vga_raster_mmap(void *v, void *vs, off_t offset, int prot) 649 { 650 struct vga_config *vc = v; 651 const struct vga_funcs *vf = vc->vc_funcs; 652 653 if (vc->vc_funcs == NULL) 654 return (-1); 655 656 if (vf->vf_mmap == NULL) 657 return (-1); 658 659 return ((*vf->vf_mmap)(v, offset, prot)); 660 } 661 662 int 663 vga_raster_alloc_screen(void *v, const struct wsscreen_descr *type, 664 void **cookiep, int *curxp, int *curyp, long *defattrp) 665 { 666 struct vga_config *vc = v; 667 struct vgascreen *scr; 668 669 if (vc->nscreens == 1) { 670 vc->screens.lh_first->mem = boot_scrmem; 671 } 672 673 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 674 vga_raster_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 675 676 if (vc->nscreens == 1) { 677 scr->active = 1; 678 vc->active = scr; 679 vc->currenttype = type; 680 } else { 681 scr->mem = malloc(sizeof(struct vga_scrmem) * 682 type->ncols * type->nrows, M_DEVBUF, M_WAITOK); 683 vga_raster_eraserows(scr, 0, type->nrows, *defattrp); 684 } 685 686 *cookiep = scr; 687 *curxp = scr->cursorcol; 688 *curyp = scr->cursorrow; 689 690 return (0); 691 } 692 693 void 694 vga_raster_free_screen(void *v, void *cookie) 695 { 696 struct vgascreen *vs = cookie; 697 struct vga_config *vc = vs->cfg; 698 699 LIST_REMOVE(vs, next); 700 vc->nscreens--; 701 if (vs != &vga_console_screen) 702 free(vs, M_DEVBUF); 703 else 704 panic("vga_raster_free_screen: console"); 705 706 if (vc->active == vs) 707 vc->active = 0; 708 } 709 710 int 711 vga_raster_show_screen(void *v, void *cookie, int waitok, 712 void (*cb)(void *, int, int), void *cbarg) 713 { 714 struct vgascreen *scr = cookie, *oldscr; 715 struct vga_config *vc = scr->cfg; 716 717 oldscr = vc->active; /* can be NULL! */ 718 if (scr == oldscr) { 719 return (0); 720 } 721 722 vc->wantedscreen = cookie; 723 vc->switchcb = cb; 724 vc->switchcbarg = cbarg; 725 if (cb) { 726 callout_reset(&vc->vc_switch_callout, 0, 727 (void(*)(void *))vga_switch_screen, vc); 728 return (EAGAIN); 729 } 730 731 vga_switch_screen(vc); 732 return (0); 733 } 734 735 void 736 vga_switch_screen(struct vga_config *vc) 737 { 738 struct vgascreen *scr, *oldscr; 739 struct vga_handle *vh = &vc->hdl; 740 const struct wsscreen_descr *type; 741 742 scr = vc->wantedscreen; 743 if (!scr) { 744 printf("vga_switch_screen: disappeared\n"); 745 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 746 return; 747 } 748 type = scr->type; 749 oldscr = vc->active; /* can be NULL! */ 750 #ifdef DIAGNOSTIC 751 if (oldscr) { 752 if (!oldscr->active) 753 panic("vga_raster_show_screen: not active"); 754 if (oldscr->type != vc->currenttype) 755 panic("vga_raster_show_screen: bad type"); 756 } 757 #endif 758 if (scr == oldscr) { 759 return; 760 } 761 #ifdef DIAGNOSTIC 762 if (scr->active) 763 panic("vga_raster_show_screen: active"); 764 #endif 765 766 if (oldscr) 767 oldscr->active = 0; 768 769 if (vc->currenttype != type) { 770 vga_raster_setscreentype(vc, type); 771 vc->currenttype = type; 772 } 773 774 scr->dispoffset = scr->mindispoffset; 775 776 if (!oldscr || (scr->dispoffset != oldscr->dispoffset)) { 777 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 778 vga_6845_write(vh, startadrl, scr->dispoffset); 779 } 780 781 /* Clear the entire screen. */ 782 vga_gdc_write(vh, mode, 0x02); 783 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x2000); 784 785 scr->active = 1; 786 vga_restore_screen(scr, type, scr->mem); 787 788 vc->active = scr; 789 790 vga_raster_cursor(scr, scr->cursoron, scr->cursorrow, scr->cursorcol); 791 792 vc->wantedscreen = 0; 793 if (vc->switchcb) 794 (*vc->switchcb)(vc->switchcbarg, 0, 0); 795 } 796 797 static int 798 vga_raster_load_font(void *v, void *id, struct wsdisplay_font *data) 799 { 800 /* XXX */ 801 printf("vga_raster_load_font: called\n"); 802 803 return (0); 804 } 805 806 void 807 vga_raster_setup_font(struct vga_config *vc, struct vgascreen *scr) 808 { 809 struct vga_raster_font *vf; 810 struct wsdisplay_font *wf; 811 int cookie; 812 813 LIST_FOREACH(vf, &vc->vc_fontlist, next) { 814 if (wsfont_matches(vf->font, 0, 0, scr->type->fontheight, 0)) { 815 scr->encoding = vf->font->encoding; 816 LIST_INSERT_HEAD(&scr->fontset, vf, next); 817 return; 818 } 819 } 820 821 cookie = wsfont_find(NULL, 0, scr->type->fontheight, 0, 822 WSDISPLAY_FONTORDER_L2R, 0); 823 if (cookie == -1) 824 return; 825 826 if (wsfont_lock(cookie, &wf)) 827 return; 828 829 vf = malloc(sizeof(struct vga_raster_font), M_DEVBUF, M_NOWAIT); 830 if (!vf) { 831 wsfont_unlock(cookie); 832 return; 833 } 834 835 vf->font = wf; 836 scr->encoding = vf->font->encoding; 837 LIST_INSERT_HEAD(&scr->fontset, vf, next); 838 } 839 840 void 841 vga_setup_regs(struct videomode *mode, struct vga_moderegs *regs) 842 { 843 int i; 844 int depth = 4; /* XXXBJY hardcoded for now */ 845 const u_int8_t palette[] = { 846 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 847 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f 848 }; 849 850 /* 851 * Compute hsync and vsync polarity. 852 */ 853 if ((mode->flags & (VID_PHSYNC | VID_NHSYNC)) 854 && (mode->flags & (VID_PVSYNC | VID_NVSYNC))) { 855 regs->miscout = 0x23; 856 if (mode->flags & VID_NHSYNC) 857 regs->miscout |= 0x40; 858 if (mode->flags & VID_NVSYNC) 859 regs->miscout |= 0x80; 860 } else { 861 if (mode->flags & VID_DBLSCAN) 862 mode->vdisplay *= 2; 863 if (mode->vdisplay < 400) 864 regs->miscout = 0xa3; 865 else if (mode->vdisplay < 480) 866 regs->miscout = 0x63; 867 else if (mode->vdisplay < 768) 868 regs->miscout = 0xe3; 869 else 870 regs->miscout = 0x23; 871 } 872 873 /* 874 * Time sequencer 875 */ 876 if (depth == 4) 877 regs->ts[0] = 0x02; 878 else 879 regs->ts[0] = 0x00; 880 if (mode->flags & VID_CLKDIV2) 881 regs->ts[1] = 0x09; 882 else 883 regs->ts[1] = 0x01; 884 regs->ts[2] = 0x0f; 885 regs->ts[3] = 0x00; 886 if (depth < 8) 887 regs->ts[4] = 0x06; 888 else 889 regs->ts[4] = 0x0e; 890 891 /* 892 * CRTC controller 893 */ 894 regs->crtc[0] = (mode->htotal >> 3) - 5; 895 regs->crtc[1] = (mode->hdisplay >> 3) - 1; 896 regs->crtc[2] = (mode->hsync_start >> 3) - 1; 897 regs->crtc[3] = (((mode->hsync_end >> 3) - 1) & 0x1f) | 0x80; 898 regs->crtc[4] = mode->hsync_start >> 3; 899 regs->crtc[5] = ((((mode->hsync_end >> 3) - 1) & 0x20) << 2) 900 | (((mode->hsync_end >> 3)) & 0x1f); 901 regs->crtc[6] = (mode->vtotal - 2) & 0xff; 902 regs->crtc[7] = (((mode->vtotal - 2) & 0x100) >> 8) 903 | (((mode->vdisplay - 1) & 0x100) >> 7) 904 | ((mode->vsync_start & 0x100) >> 6) 905 | (((mode->vsync_start - 1) & 0x100) >> 5) 906 | 0x10 907 | (((mode->vtotal - 2) & 0x200) >> 4) 908 | (((mode->vdisplay - 1) & 0x200) >> 3) 909 | ((mode->vsync_start & 0x200) >> 2); 910 regs->crtc[8] = 0x00; 911 regs->crtc[9] = (((mode->vsync_start - 1) & 0x200) >> 4) | 0x40; 912 if (mode->flags & VID_DBLSCAN) 913 regs->crtc[9] |= 0x80; 914 regs->crtc[10] = 0x00; 915 regs->crtc[11] = 0x00; 916 regs->crtc[12] = 0x00; 917 regs->crtc[13] = 0x00; 918 regs->crtc[14] = 0x00; 919 regs->crtc[15] = 0x00; 920 regs->crtc[16] = mode->vsync_start & 0xff; 921 regs->crtc[17] = (mode->vsync_end & 0x0f) | 0x20; 922 regs->crtc[18] = (mode->vdisplay - 1) & 0xff; 923 regs->crtc[19] = mode->hdisplay >> 4; /* XXXBJY */ 924 regs->crtc[20] = 0x00; 925 regs->crtc[21] = (mode->vsync_start - 1) & 0xff; 926 regs->crtc[22] = (mode->vsync_end - 1) & 0xff; 927 if (depth < 8) 928 regs->crtc[23] = 0xe3; 929 else 930 regs->crtc[23] = 0xc3; 931 regs->crtc[24] = 0xff; 932 933 /* 934 * Graphics display controller 935 */ 936 regs->gdc[0] = 0x00; 937 regs->gdc[1] = 0x00; 938 regs->gdc[2] = 0x00; 939 regs->gdc[3] = 0x00; 940 regs->gdc[4] = 0x00; 941 if (depth == 4) 942 regs->gdc[5] = 0x02; 943 else 944 regs->gdc[5] = 0x40; 945 regs->gdc[6] = 0x01; 946 regs->gdc[7] = 0x0f; 947 regs->gdc[8] = 0xff; 948 949 /* 950 * Attribute controller 951 */ 952 /* Set palette registers. */ 953 for (i = 0; i < 16; i++) 954 regs->atc[i] = palette[i]; 955 if (depth == 4) 956 regs->atc[16] = 0x01; /* XXXBJY was 0x81 in XFree86 */ 957 else 958 regs->atc[16] = 0x41; 959 regs->atc[17] = 0x00; /* XXXBJY just a guess */ 960 regs->atc[18] = 0x0f; 961 regs->atc[19] = 0x00; 962 regs->atc[20] = 0x00; 963 } 964 965 void 966 vga_set_mode(struct vga_handle *vh, struct vga_moderegs *regs) 967 { 968 int i; 969 970 /* Disable display. */ 971 vga_ts_write(vh, mode, vga_ts_read(vh, mode) | VGA_TS_MODE_BLANK); 972 973 /* Write misc output register. */ 974 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAW, 975 regs->miscout); 976 977 /* Set synchronous reset. */ 978 vga_ts_write(vh, syncreset, 0x01); 979 vga_ts_write(vh, mode, regs->ts[1] | VGA_TS_MODE_BLANK); 980 for (i = 2; i < VGA_TS_NREGS; i++) 981 _vga_ts_write(vh, i, regs->ts[i]); 982 /* Clear synchronous reset. */ 983 vga_ts_write(vh, syncreset, 0x03); 984 985 /* Unprotect CRTC registers 0-7. */ 986 vga_6845_write(vh, vsynce, vga_6845_read(vh, vsynce) & ~0x80); 987 /* Write CRTC registers. */ 988 for (i = 0; i < MC6845_NREGS; i++) 989 _vga_6845_write(vh, i, regs->crtc[i]); 990 991 /* Write graphics display registers. */ 992 for (i = 0; i < VGA_GDC_NREGS; i++) 993 _vga_gdc_write(vh, i, regs->gdc[i]); 994 995 /* Write attribute controller registers. */ 996 for (i = 0; i < VGA_ATC_NREGS; i++) 997 _vga_attr_write(vh, i, regs->atc[i]); 998 999 /* Enable display. */ 1000 vga_ts_write(vh, mode, vga_ts_read(vh, mode) & ~VGA_TS_MODE_BLANK); 1001 } 1002 1003 void 1004 vga_raster_cursor_init(struct vgascreen *scr, int existing) 1005 { 1006 struct vga_handle *vh = scr->hdl; 1007 bus_space_tag_t memt; 1008 bus_space_handle_t memh; 1009 int off; 1010 1011 if (existing) { 1012 /* 1013 * This is the first screen. At this point, scr->active is 1014 * false, so we can't use vga_raster_cursor() to do this. 1015 */ 1016 memt = vh->vh_memt; 1017 memh = vh->vh_memh; 1018 off = (scr->cursorrow * scr->type->ncols + scr->cursorcol) + 1019 scr->dispoffset / 8; 1020 1021 scr->cursortmp = scr->mem[off]; 1022 vga_raster_putchar(scr, scr->cursorrow, scr->cursorcol, 1023 scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); 1024 } else { 1025 scr->cursortmp.ch = 0; 1026 scr->cursortmp.attr = 0; 1027 scr->cursortmp.second = 0; 1028 scr->cursortmp.enc = scr->encoding; 1029 } 1030 1031 scr->cursoron = 1; 1032 } 1033 1034 void 1035 vga_raster_cursor(void *id, int on, int row, int col) 1036 { 1037 struct vgascreen *scr = id; 1038 int off, tmp; 1039 1040 /* Remove old cursor image */ 1041 if (scr->cursoron) { 1042 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1043 if (scr->active) { 1044 tmp = scr->encoding; 1045 scr->encoding = scr->cursortmp.enc; 1046 if (scr->cursortmp.second) 1047 vga_raster_putchar(id, scr->cursorrow, 1048 scr->cursorcol - 1, scr->cursortmp.ch, 1049 scr->cursortmp.attr); 1050 else 1051 vga_raster_putchar(id, scr->cursorrow, 1052 scr->cursorcol, scr->cursortmp.ch, 1053 scr->cursortmp.attr); 1054 scr->encoding = tmp; 1055 } 1056 } 1057 1058 scr->cursorrow = row; 1059 scr->cursorcol = col; 1060 1061 if ((scr->cursoron = on) == 0) 1062 return; 1063 1064 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1065 scr->cursortmp = scr->mem[off]; 1066 if (scr->active) { 1067 tmp = scr->encoding; 1068 scr->encoding = scr->cursortmp.enc; 1069 if (scr->cursortmp.second) 1070 vga_raster_putchar(id, scr->cursorrow, 1071 scr->cursorcol - 1, scr->cursortmp.ch, 1072 scr->cursortmp.attr ^ 0x77); 1073 else 1074 vga_raster_putchar(id, scr->cursorrow, 1075 scr->cursorcol, scr->cursortmp.ch, 1076 scr->cursortmp.attr ^ 0x77); 1077 scr->encoding = tmp; 1078 } 1079 } 1080 1081 static int 1082 vga_raster_mapchar(void *id, int uni, u_int *index) 1083 { 1084 struct vgascreen *scr = id; 1085 1086 if (scr->encoding == WSDISPLAY_FONTENC_IBM) 1087 return pcdisplay_mapchar(id, uni, index); 1088 else { 1089 *index = uni; 1090 return 5; 1091 } 1092 } 1093 1094 void 1095 vga_raster_putchar(void *id, int row, int col, u_int c, long attr) 1096 { 1097 struct vgascreen *scr = id; 1098 int off; 1099 struct vga_raster_font *fs; 1100 u_int tmp_ch; 1101 1102 off = row * scr->type->ncols + col; 1103 1104 LIST_FOREACH(fs, &scr->fontset, next) { 1105 if ((scr->encoding == fs->font->encoding) && 1106 (c >= fs->font->firstchar) && 1107 (c < fs->font->firstchar + fs->font->numchars) && 1108 (scr->type->fontheight == fs->font->fontheight)) { 1109 if (scr->active) { 1110 tmp_ch = c - fs->font->firstchar; 1111 _vga_raster_putchar(scr, row, col, tmp_ch, 1112 attr, fs); 1113 } 1114 1115 scr->mem[off].ch = c; 1116 scr->mem[off].attr = attr; 1117 scr->mem[off].second = 0; 1118 scr->mem[off].enc = fs->font->encoding; 1119 1120 if (fs->font->stride == 2) { 1121 scr->mem[off + 1].ch = c; 1122 scr->mem[off + 1].attr = attr; 1123 scr->mem[off + 1].second = 1; 1124 scr->mem[off + 1].enc = fs->font->encoding; 1125 } 1126 1127 return; 1128 } 1129 } 1130 1131 /* 1132 * No match found. 1133 */ 1134 if (scr->active) 1135 /* 1136 * Put a single width space character no matter what the 1137 * actual width of the character is. 1138 */ 1139 _vga_raster_putchar(scr, row, col, ' ', attr, 1140 &vga_console_fontset_ascii); 1141 scr->mem[off].ch = c; 1142 scr->mem[off].attr = attr; 1143 scr->mem[off].second = 0; 1144 scr->mem[off].enc = scr->encoding; 1145 } 1146 1147 static void 1148 _vga_raster_putchar(void *id, int row, int col, u_int c, long attr, 1149 struct vga_raster_font *fs) 1150 { 1151 struct vgascreen *scr = id; 1152 struct vga_handle *vh = scr->hdl; 1153 bus_space_tag_t memt = vh->vh_memt; 1154 bus_space_handle_t memh = vh->vh_memh; 1155 int i; 1156 int rasoff, rasoff2; 1157 int fheight = scr->type->fontheight; 1158 volatile u_int8_t dummy, pattern; 1159 u_int8_t fgcolor, bgcolor; 1160 1161 rasoff = scr->dispoffset + row * scr->type->ncols * fheight + col; 1162 rasoff2 = rasoff; 1163 1164 #if 0 1165 bgcolor = bgansitopc[attr >> 4]; 1166 fgcolor = fgansitopc[attr & 0x0f]; 1167 #else 1168 bgcolor = ((attr >> 4) & 0x0f); 1169 fgcolor = attr & 0x0f; 1170 #endif 1171 1172 if (fs->font->stride == 1) { 1173 /* Paint background. */ 1174 vga_gdc_write(vh, mode, 0x02); 1175 for (i = 0; i < fheight; i++) { 1176 bus_space_write_1(memt, memh, rasoff, bgcolor); 1177 rasoff += scr->type->ncols; 1178 } 1179 1180 /* Draw a single width character. */ 1181 vga_gdc_write(vh, mode, 0x03); 1182 vga_gdc_write(vh, setres, fgcolor); 1183 for (i = 0; i < fheight; i++) { 1184 pattern = ((u_int8_t *)fs->font->data)[c * fheight + i]; 1185 /* When pattern is 0, skip output for speed-up. */ 1186 if (pattern != 0) { 1187 dummy = bus_space_read_1(memt, memh, rasoff2); 1188 bus_space_write_1(memt, memh, rasoff2, pattern); 1189 } 1190 rasoff2 += scr->type->ncols; 1191 } 1192 } else if (fs->font->stride == 2) { 1193 /* Paint background. */ 1194 vga_gdc_write(vh, mode, 0x02); 1195 for (i = 0; i < fheight; i++) { 1196 bus_space_write_1(memt, memh, rasoff, bgcolor); 1197 bus_space_write_1(memt, memh, rasoff + 1, bgcolor); 1198 rasoff += scr->type->ncols; 1199 } 1200 1201 /* Draw a double width character. */ 1202 vga_gdc_write(vh, mode, 0x03); 1203 vga_gdc_write(vh, setres, fgcolor); 1204 for (i = 0; i < fheight; i++) { 1205 pattern = ((u_int8_t *)fs->font->data) 1206 [(c * fheight + i) * 2]; 1207 if (pattern != 0) { 1208 dummy = bus_space_read_1(memt, memh, rasoff2); 1209 bus_space_write_1(memt, memh, rasoff2, pattern); 1210 } 1211 pattern = ((u_int8_t *)fs->font->data) 1212 [(c * fheight + i) * 2 + 1]; 1213 if (pattern != 0) { 1214 rasoff2++; 1215 dummy = bus_space_read_1(memt, memh, rasoff2); 1216 bus_space_write_1(memt, memh, rasoff2, pattern); 1217 rasoff2--; 1218 } 1219 rasoff2 += scr->type->ncols; 1220 } 1221 } 1222 } 1223 1224 void 1225 vga_raster_copycols(void *id, int row, int srccol, int dstcol, int ncols) 1226 { 1227 struct vgascreen *scr = id; 1228 struct vga_handle *vh = scr->hdl; 1229 bus_space_tag_t memt = vh->vh_memt; 1230 bus_space_handle_t memh = vh->vh_memh; 1231 bus_size_t srcoff, dstoff; 1232 bus_size_t rassrcoff, rasdstoff; 1233 int i; 1234 int fheight = scr->type->fontheight; 1235 1236 srcoff = row * scr->type->ncols + srccol; 1237 dstoff = row * scr->type->ncols + dstcol; 1238 rassrcoff = scr->dispoffset + row * scr->type->ncols * fheight + srccol; 1239 rasdstoff = scr->dispoffset + row * scr->type->ncols * fheight + dstcol; 1240 1241 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1242 ncols * sizeof(struct vga_scrmem)); 1243 1244 vga_gdc_write(vh, mode, 0x01); 1245 if (scr->active) { 1246 for (i = 0; i < fheight; i++) { 1247 bus_space_copy_region_1(memt, memh, 1248 rassrcoff + i * scr->type->ncols, memh, 1249 rasdstoff + i * scr->type->ncols, ncols); 1250 } 1251 } 1252 } 1253 1254 void 1255 vga_raster_erasecols(void *id, int row, int startcol, int ncols, long fillattr) 1256 { 1257 struct vgascreen *scr = id; 1258 int i; 1259 1260 if (scr->active == 0) 1261 return; 1262 1263 for (i = startcol; i < startcol + ncols; i++) 1264 vga_raster_putchar(id, row, i, ' ', fillattr); 1265 } 1266 1267 void 1268 vga_raster_copyrows(void *id, int srcrow, int dstrow, int nrows) 1269 { 1270 struct vgascreen *scr = id; 1271 struct vga_handle *vh = scr->hdl; 1272 bus_space_tag_t memt = vh->vh_memt; 1273 bus_space_handle_t memh = vh->vh_memh; 1274 int ncols; 1275 bus_size_t srcoff, dstoff; 1276 bus_size_t rassrcoff, rasdstoff; 1277 int fheight; 1278 1279 ncols = scr->type->ncols; 1280 fheight = scr->type->fontheight; 1281 1282 srcoff = srcrow * ncols; 1283 dstoff = dstrow * ncols; 1284 rassrcoff = srcoff * fheight; 1285 rasdstoff = dstoff * fheight; 1286 1287 if (scr->active) { 1288 vga_gdc_write(vh, mode, 0x01); 1289 if (dstrow == 0 && (srcrow + nrows == scr->type->nrows)) { 1290 int cursoron = scr->cursoron; 1291 1292 if (cursoron) 1293 /* Disable cursor. */ 1294 vga_raster_cursor(scr, 0, 1295 scr->cursorrow, scr->cursorcol); 1296 1297 /* scroll up whole screen */ 1298 if ((scr->dispoffset + srcrow * ncols * fheight) 1299 <= scr->maxdispoffset) 1300 scr->dispoffset += srcrow * ncols * fheight; 1301 else { 1302 bus_space_copy_region_1(memt, memh, 1303 scr->dispoffset + rassrcoff, 1304 memh, scr->mindispoffset, 1305 nrows * ncols * fheight); 1306 scr->dispoffset = scr->mindispoffset; 1307 } 1308 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 1309 vga_6845_write(vh, startadrl, scr->dispoffset); 1310 1311 if (cursoron) 1312 /* Enable cursor. */ 1313 vga_raster_cursor(scr, 1, scr->cursorrow, 1314 scr->cursorcol); 1315 } else 1316 bus_space_copy_region_1(memt, memh, 1317 scr->dispoffset + rassrcoff, memh, 1318 scr->dispoffset + rasdstoff, 1319 nrows * ncols * fheight); 1320 } 1321 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1322 nrows * ncols * sizeof(struct vga_scrmem)); 1323 } 1324 1325 void 1326 vga_raster_eraserows(void *id, int startrow, int nrows, long fillattr) 1327 { 1328 struct vgascreen *scr = id; 1329 struct vga_handle *vh = scr->hdl; 1330 bus_space_tag_t memt = vh->vh_memt; 1331 bus_space_handle_t memh = vh->vh_memh; 1332 bus_size_t off, count; 1333 bus_size_t rasoff, rascount; 1334 int i; 1335 1336 off = startrow * scr->type->ncols; 1337 count = nrows * scr->type->ncols; 1338 rasoff = off * scr->type->fontheight; 1339 rascount = count * scr->type->fontheight; 1340 1341 if (scr->active) { 1342 u_int8_t bgcolor = (fillattr >> 4) & 0x0F; 1343 1344 /* Paint background. */ 1345 vga_gdc_write(vh, mode, 0x02); 1346 if (scr->type->ncols % 4 == 0) { 1347 u_int32_t fill = bgcolor | (bgcolor << 8) | 1348 (bgcolor << 16) | (bgcolor << 24); 1349 /* We can speed up I/O */ 1350 for (i = rasoff; i < rasoff + rascount; i += 4) 1351 bus_space_write_4(memt, memh, 1352 scr->dispoffset + i, fill); 1353 } else { 1354 u_int16_t fill = bgcolor | (bgcolor << 8); 1355 for (i = rasoff; i < rasoff + rascount; i += 2) 1356 bus_space_write_2(memt, memh, 1357 scr->dispoffset + i, fill); 1358 } 1359 } 1360 for (i = 0; i < count; i++) { 1361 scr->mem[off + i].ch = ' '; 1362 scr->mem[off + i].attr = fillattr; 1363 scr->mem[off + i].second = 0; 1364 scr->mem[off + i].enc = scr->encoding; 1365 } 1366 } 1367 1368 static int 1369 vga_raster_allocattr(void *id, int fg, int bg, int flags, long *attrp) 1370 { 1371 struct vgascreen *scr = id; 1372 struct vga_config *vc = scr->cfg; 1373 1374 if (vc->hdl.vh_mono) { 1375 if (flags & WSATTR_WSCOLORS) 1376 return (EINVAL); 1377 if (flags & WSATTR_REVERSE) 1378 *attrp = 0x70; 1379 else 1380 *attrp = 0x07; 1381 if (flags & WSATTR_UNDERLINE) 1382 *attrp |= FG_UNDERLINE; 1383 if (flags & WSATTR_HILIT) 1384 *attrp |= FG_INTENSE; 1385 } else { 1386 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1387 return (EINVAL); 1388 if (flags & WSATTR_WSCOLORS) 1389 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1390 else 1391 *attrp = 7; 1392 if (flags & WSATTR_HILIT) 1393 *attrp += 8; 1394 } 1395 if (flags & WSATTR_BLINK) 1396 *attrp |= FG_BLINK; 1397 return (0); 1398 } 1399 1400 void 1401 vga_restore_screen(struct vgascreen *scr, 1402 const struct wsscreen_descr *type, struct vga_scrmem *mem) 1403 { 1404 int i, j, off, tmp; 1405 1406 tmp = scr->encoding; 1407 for (i = 0; i < type->nrows; i++) { 1408 for (j = 0; j < type->ncols; j++) { 1409 off = i * type->ncols + j; 1410 if (mem[off].second != 1) { 1411 scr->encoding = mem[off].enc; 1412 vga_raster_putchar(scr, i, j, mem[off].ch, 1413 mem[off].attr); 1414 } 1415 } 1416 } 1417 scr->encoding = tmp; 1418 } 1419 1420 void 1421 vga_raster_setscreentype(struct vga_config *vc, 1422 const struct wsscreen_descr *type) 1423 { 1424 struct vga_handle *vh = &vc->hdl; 1425 struct vga_moderegs moderegs; 1426 1427 vga_setup_regs((struct videomode *)type->modecookie, &moderegs); 1428 vga_set_mode(vh, &moderegs); 1429 } 1430 1431 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1432 void 1433 vga_raster_replaceattr(void *id, long oldattr, long newattr) 1434 { 1435 struct vgascreen *scr = id; 1436 const struct wsscreen_descr *type = scr->type; 1437 int off; 1438 1439 for (off = 0; off < type->nrows * type->ncols; off++) { 1440 if (scr->mem[off].attr == oldattr) 1441 scr->mem[off].attr = newattr; 1442 } 1443 1444 /* Repaint the whole screen, if needed */ 1445 if (scr->active) 1446 vga_restore_screen(scr, type, scr->mem); 1447 } 1448 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 1449