1 /* $NetBSD: vga_raster.c,v 1.23 2006/09/03 21:42:09 christos 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 1.23 2006/09/03 21:42:09 christos 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, NULL, 160 }, 161 /* 640x480 for 80x30 mode */ 162 { 163 25175, 640, 664, 760, 800, 480, 491, 493, 525, 0, NULL, 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 NULL, /* pollc */ 326 NULL, /* scroll */ 327 }; 328 329 int 330 vga_cnattach(bus_space_tag_t iot, bus_space_tag_t memt, int type, int check) 331 { 332 long defattr; 333 const struct wsscreen_descr *scr; 334 #ifdef VGA_CONSOLE_SCREENTYPE 335 const char *typestr = NULL; 336 #endif 337 338 if (check && !vga_common_probe(iot, memt)) 339 return (ENXIO); 340 341 /* set up bus-independent VGA configuration */ 342 vga_raster_init(&vga_console_vc, iot, memt); 343 #ifdef VGA_CONSOLE_SCREENTYPE 344 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 345 &vga_screenlist_mono : &vga_screenlist, VGA_CONSOLE_SCREENTYPE); 346 if (!scr) 347 /* Invalid screen type, continue with the default mode. */ 348 typestr = "80x25"; 349 else if (scr->nrows > 30) 350 /* Unsupported screen type, try 80x30. */ 351 typestr = "80x30"; 352 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 353 &vga_screenlist_mono : &vga_screenlist, typestr); 354 if (scr != vga_console_vc.currenttype) 355 vga_console_vc.currenttype = scr; 356 #else 357 scr = vga_console_vc.currenttype; 358 #endif 359 vga_raster_init_screen(&vga_console_vc, &vga_console_screen, scr, 1, 360 &defattr); 361 362 vga_console_screen.active = 1; 363 vga_console_vc.active = &vga_console_screen; 364 365 wsdisplay_cnattach(scr, &vga_console_screen, 366 vga_console_screen.cursorcol, vga_console_screen.cursorrow, 367 defattr); 368 369 vgaconsole = 1; 370 vga_console_type = type; 371 return (0); 372 } 373 374 void 375 vga_raster_init(struct vga_config *vc, bus_space_tag_t iot, 376 bus_space_tag_t memt) 377 { 378 struct vga_handle *vh = &vc->hdl; 379 u_int8_t mor; 380 struct vga_raster_font *vf; 381 382 vh->vh_iot = iot; 383 vh->vh_memt = memt; 384 385 if (bus_space_map(vh->vh_iot, 0x3c0, 0x10, 0, &vh->vh_ioh_vga)) 386 panic("vga_raster_init: couldn't map vga io"); 387 388 /* read "misc output register" */ 389 mor = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAR); 390 vh->vh_mono = !(mor & 1); 391 392 if (bus_space_map(vh->vh_iot, (vh->vh_mono ? 0x3b0 : 0x3d0), 0x10, 0, 393 &vh->vh_ioh_6845)) 394 panic("vga_raster_init: couldn't map 6845 io"); 395 396 if (bus_space_map(vh->vh_memt, 0xa0000, 0x20000, 0, &vh->vh_allmemh)) 397 panic("vga_raster_init: couldn't map memory"); 398 399 if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh, 0, 0x10000, 400 &vh->vh_memh)) 401 panic("vga_raster_init: mem subrange failed"); 402 403 /* should only reserve the space (no need to map - save KVM) */ 404 vc->vc_biostag = memt; 405 if (bus_space_map(vc->vc_biostag, 0xc0000, 0x8000, 0, &vc->vc_bioshdl)) 406 vc->vc_biosmapped = 0; 407 else 408 vc->vc_biosmapped = 1; 409 410 vc->nscreens = 0; 411 LIST_INIT(&vc->screens); 412 vc->active = NULL; 413 vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen; 414 callout_init(&vc->vc_switch_callout); 415 416 wsfont_init(); 417 vc->nfonts = 1; 418 LIST_INIT(&vc->vc_fontlist); 419 vf = &vga_console_fontset_ascii; 420 if (vga_no_builtinfont) { 421 struct wsdisplay_font *wf; 422 int cookie; 423 424 /* prefer 8x16 pixel font */ 425 cookie = wsfont_find(NULL, 8, 16, 0, WSDISPLAY_FONTORDER_L2R, 426 0); 427 if (cookie == -1) 428 cookie = wsfont_find(NULL, 0, 0, 0, 429 WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R); 430 if (cookie == -1 || wsfont_lock(cookie, &wf)) 431 panic("vga_raster_init: can't load console font"); 432 vf->font = wf; 433 } else { 434 vga_load_builtinfont(vh, builtinfont_data, 0, 256); 435 vf->font = &builtinfont; 436 } 437 LIST_INSERT_HEAD(&vc->vc_fontlist, vf, next); 438 } 439 440 void 441 vga_raster_init_screen(struct vga_config *vc, struct vgascreen *scr, 442 const struct wsscreen_descr *type, int existing, long *attrp) 443 { 444 int cpos; 445 int res; 446 struct vga_handle *vh; 447 448 scr->cfg = vc; 449 scr->hdl = &vc->hdl; 450 scr->type = type; 451 scr->mindispoffset = 0; 452 scr->maxdispoffset = 0x10000; 453 vh = &vc->hdl; 454 455 LIST_INIT(&scr->fontset); 456 vga_raster_setup_font(vc, scr); 457 458 if (existing) { 459 int i; 460 461 cpos = vga_6845_read(vh, cursorh) << 8; 462 cpos |= vga_6845_read(vh, cursorl); 463 464 /* make sure we have a valid cursor position */ 465 if (cpos < 0 || cpos >= type->nrows * type->ncols) 466 cpos = 0; 467 468 scr->dispoffset = vga_6845_read(vh, startadrh) << 9; 469 scr->dispoffset |= vga_6845_read(vh, startadrl) << 1; 470 471 /* make sure we have a valid memory offset */ 472 if (scr->dispoffset < scr->mindispoffset || 473 scr->dispoffset > scr->maxdispoffset) 474 scr->dispoffset = scr->mindispoffset; 475 476 scr->mem = boot_scrmem; 477 scr->active = 1; 478 479 /* Save the current screen to memory. XXXBJY assume 80x25 */ 480 for (i = 0; i < 80 * 25; i++) { 481 scr->mem[i].ch = bus_space_read_1(vh->vh_memt, 482 vh->vh_allmemh, 0x18000 + i * 2); 483 scr->mem[i].attr = bus_space_read_1(vh->vh_memt, 484 vh->vh_allmemh, 0x18000 + i * 2 + 1); 485 scr->mem[i].enc = scr->encoding; 486 } 487 488 vga_raster_setscreentype(vc, type); 489 490 /* Clear the entire screen. */ 491 vga_gdc_write(vh, mode, 0x02); 492 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 493 0x4000); 494 495 vga_restore_screen(scr, type, scr->mem); 496 } else { 497 cpos = 0; 498 scr->dispoffset = scr->mindispoffset; 499 scr->mem = NULL; 500 scr->active = 0; 501 } 502 503 scr->cursorrow = cpos / type->ncols; 504 scr->cursorcol = cpos % type->ncols; 505 vga_raster_cursor_init(scr, existing); 506 507 #ifdef __alpha__ 508 if (!vc->hdl.vh_mono) 509 /* 510 * DEC firmware uses a blue background. 511 */ 512 res = vga_raster_allocattr(scr, WSCOL_WHITE, WSCOL_BLUE, 513 WSATTR_WSCOLORS, attrp); 514 else 515 #endif 516 res = vga_raster_allocattr(scr, 0, 0, 0, attrp); 517 #ifdef DIAGNOSTIC 518 if (res) 519 panic("vga_raster_init_screen: attribute botch"); 520 #endif 521 522 vc->nscreens++; 523 LIST_INSERT_HEAD(&vc->screens, scr, next); 524 } 525 526 void 527 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, 528 bus_space_tag_t memt, int type, int quirks, 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_is_console(bus_space_tag_t iot, int type) 560 { 561 if (vgaconsole && 562 !vga_console_attached && 563 iot == vga_console_vc.hdl.vh_iot && 564 (vga_console_type == -1 || (type == vga_console_type))) 565 return (1); 566 return (0); 567 } 568 569 static int 570 vga_get_video(struct vga_config *vc) 571 { 572 573 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0; 574 } 575 576 static void 577 vga_set_video(struct vga_config *vc, int state) 578 { 579 int val; 580 581 vga_ts_write(&vc->hdl, syncreset, 0x01); 582 if (state) { /* unblank screen */ 583 val = vga_ts_read(&vc->hdl, mode); 584 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK); 585 #ifndef VGA_NO_VBLANK 586 val = vga_6845_read(&vc->hdl, mode); 587 vga_6845_write(&vc->hdl, mode, val | 0x80); 588 #endif 589 } else { /* blank screen */ 590 val = vga_ts_read(&vc->hdl, mode); 591 vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK); 592 #ifndef VGA_NO_VBLANK 593 val = vga_6845_read(&vc->hdl, mode); 594 vga_6845_write(&vc->hdl, mode, val & ~0x80); 595 #endif 596 } 597 vga_ts_write(&vc->hdl, syncreset, 0x03); 598 } 599 600 int 601 vga_raster_ioctl(void *v, void *vs, u_long cmd, caddr_t data, int flag, 602 struct lwp *l) 603 { 604 struct vga_config *vc = v; 605 const struct vga_funcs *vf = vc->vc_funcs; 606 607 switch (cmd) { 608 case WSDISPLAYIO_GTYPE: 609 *(int *)data = vc->vc_type; 610 return 0; 611 612 case WSDISPLAYIO_GINFO: 613 /* XXX should get detailed hardware information here */ 614 return EPASSTHROUGH; 615 616 case WSDISPLAYIO_GVIDEO: 617 #if 1 618 *(int *)data = (vga_get_video(vc) ? 619 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); 620 return 0; 621 #endif 622 623 case WSDISPLAYIO_SVIDEO: 624 #if 1 625 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 626 return 0; 627 #endif 628 629 case WSDISPLAYIO_GETCMAP: 630 case WSDISPLAYIO_PUTCMAP: 631 case WSDISPLAYIO_GCURPOS: 632 case WSDISPLAYIO_SCURPOS: 633 case WSDISPLAYIO_GCURMAX: 634 case WSDISPLAYIO_GCURSOR: 635 case WSDISPLAYIO_SCURSOR: 636 /* NONE of these operations are by the generic VGA driver. */ 637 return EPASSTHROUGH; 638 } 639 640 if (vc->vc_funcs == NULL) 641 return (EPASSTHROUGH); 642 643 if (vf->vf_ioctl == NULL) 644 return (EPASSTHROUGH); 645 646 return ((*vf->vf_ioctl)(v, cmd, data, flag, l)); 647 } 648 649 static paddr_t 650 vga_raster_mmap(void *v, void *vs, off_t offset, int prot) 651 { 652 struct vga_config *vc = v; 653 const struct vga_funcs *vf = vc->vc_funcs; 654 655 if (vc->vc_funcs == NULL) 656 return (-1); 657 658 if (vf->vf_mmap == NULL) 659 return (-1); 660 661 return ((*vf->vf_mmap)(v, offset, prot)); 662 } 663 664 int 665 vga_raster_alloc_screen(void *v, const struct wsscreen_descr *type, 666 void **cookiep, int *curxp, int *curyp, long *defattrp) 667 { 668 struct vga_config *vc = v; 669 struct vgascreen *scr; 670 671 if (vc->nscreens == 1) { 672 vc->screens.lh_first->mem = boot_scrmem; 673 } 674 675 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 676 vga_raster_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 677 678 if (vc->nscreens == 1) { 679 scr->active = 1; 680 vc->active = scr; 681 vc->currenttype = type; 682 } else { 683 scr->mem = malloc(sizeof(struct vga_scrmem) * 684 type->ncols * type->nrows, M_DEVBUF, M_WAITOK); 685 vga_raster_eraserows(scr, 0, type->nrows, *defattrp); 686 } 687 688 *cookiep = scr; 689 *curxp = scr->cursorcol; 690 *curyp = scr->cursorrow; 691 692 return (0); 693 } 694 695 void 696 vga_raster_free_screen(void *v, void *cookie) 697 { 698 struct vgascreen *vs = cookie; 699 struct vga_config *vc = vs->cfg; 700 701 LIST_REMOVE(vs, next); 702 vc->nscreens--; 703 if (vs != &vga_console_screen) 704 free(vs, M_DEVBUF); 705 else 706 panic("vga_raster_free_screen: console"); 707 708 if (vc->active == vs) 709 vc->active = 0; 710 } 711 712 int 713 vga_raster_show_screen(void *v, void *cookie, int waitok, 714 void (*cb)(void *, int, int), void *cbarg) 715 { 716 struct vgascreen *scr = cookie, *oldscr; 717 struct vga_config *vc = scr->cfg; 718 719 oldscr = vc->active; /* can be NULL! */ 720 if (scr == oldscr) { 721 return (0); 722 } 723 724 vc->wantedscreen = cookie; 725 vc->switchcb = cb; 726 vc->switchcbarg = cbarg; 727 if (cb) { 728 callout_reset(&vc->vc_switch_callout, 0, 729 (void(*)(void *))vga_switch_screen, vc); 730 return (EAGAIN); 731 } 732 733 vga_switch_screen(vc); 734 return (0); 735 } 736 737 void 738 vga_switch_screen(struct vga_config *vc) 739 { 740 struct vgascreen *scr, *oldscr; 741 struct vga_handle *vh = &vc->hdl; 742 const struct wsscreen_descr *type; 743 744 scr = vc->wantedscreen; 745 if (!scr) { 746 printf("vga_switch_screen: disappeared\n"); 747 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 748 return; 749 } 750 type = scr->type; 751 oldscr = vc->active; /* can be NULL! */ 752 #ifdef DIAGNOSTIC 753 if (oldscr) { 754 if (!oldscr->active) 755 panic("vga_raster_show_screen: not active"); 756 if (oldscr->type != vc->currenttype) 757 panic("vga_raster_show_screen: bad type"); 758 } 759 #endif 760 if (scr == oldscr) { 761 return; 762 } 763 #ifdef DIAGNOSTIC 764 if (scr->active) 765 panic("vga_raster_show_screen: active"); 766 #endif 767 768 if (oldscr) 769 oldscr->active = 0; 770 771 if (vc->currenttype != type) { 772 vga_raster_setscreentype(vc, type); 773 vc->currenttype = type; 774 } 775 776 scr->dispoffset = scr->mindispoffset; 777 778 if (!oldscr || (scr->dispoffset != oldscr->dispoffset)) { 779 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 780 vga_6845_write(vh, startadrl, scr->dispoffset); 781 } 782 783 /* Clear the entire screen. */ 784 vga_gdc_write(vh, mode, 0x02); 785 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x2000); 786 787 scr->active = 1; 788 vga_restore_screen(scr, type, scr->mem); 789 790 vc->active = scr; 791 792 vga_raster_cursor(scr, scr->cursoron, scr->cursorrow, scr->cursorcol); 793 794 vc->wantedscreen = 0; 795 if (vc->switchcb) 796 (*vc->switchcb)(vc->switchcbarg, 0, 0); 797 } 798 799 static int 800 vga_raster_load_font(void *v, void *id, struct wsdisplay_font *data) 801 { 802 /* XXX */ 803 printf("vga_raster_load_font: called\n"); 804 805 return (0); 806 } 807 808 void 809 vga_raster_setup_font(struct vga_config *vc, struct vgascreen *scr) 810 { 811 struct vga_raster_font *vf; 812 struct wsdisplay_font *wf; 813 int cookie; 814 815 LIST_FOREACH(vf, &vc->vc_fontlist, next) { 816 if (wsfont_matches(vf->font, 0, 0, scr->type->fontheight, 0)) { 817 scr->encoding = vf->font->encoding; 818 LIST_INSERT_HEAD(&scr->fontset, vf, next); 819 return; 820 } 821 } 822 823 cookie = wsfont_find(NULL, 0, scr->type->fontheight, 0, 824 WSDISPLAY_FONTORDER_L2R, 0); 825 if (cookie == -1) 826 return; 827 828 if (wsfont_lock(cookie, &wf)) 829 return; 830 831 vf = malloc(sizeof(struct vga_raster_font), M_DEVBUF, M_NOWAIT); 832 if (!vf) { 833 wsfont_unlock(cookie); 834 return; 835 } 836 837 vf->font = wf; 838 scr->encoding = vf->font->encoding; 839 LIST_INSERT_HEAD(&scr->fontset, vf, next); 840 } 841 842 void 843 vga_setup_regs(struct videomode *mode, struct vga_moderegs *regs) 844 { 845 int i; 846 int depth = 4; /* XXXBJY hardcoded for now */ 847 const u_int8_t palette[] = { 848 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 849 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f 850 }; 851 852 /* 853 * Compute hsync and vsync polarity. 854 */ 855 if ((mode->flags & (VID_PHSYNC | VID_NHSYNC)) 856 && (mode->flags & (VID_PVSYNC | VID_NVSYNC))) { 857 regs->miscout = 0x23; 858 if (mode->flags & VID_NHSYNC) 859 regs->miscout |= 0x40; 860 if (mode->flags & VID_NVSYNC) 861 regs->miscout |= 0x80; 862 } else { 863 if (mode->flags & VID_DBLSCAN) 864 mode->vdisplay *= 2; 865 if (mode->vdisplay < 400) 866 regs->miscout = 0xa3; 867 else if (mode->vdisplay < 480) 868 regs->miscout = 0x63; 869 else if (mode->vdisplay < 768) 870 regs->miscout = 0xe3; 871 else 872 regs->miscout = 0x23; 873 } 874 875 /* 876 * Time sequencer 877 */ 878 if (depth == 4) 879 regs->ts[0] = 0x02; 880 else 881 regs->ts[0] = 0x00; 882 if (mode->flags & VID_CLKDIV2) 883 regs->ts[1] = 0x09; 884 else 885 regs->ts[1] = 0x01; 886 regs->ts[2] = 0x0f; 887 regs->ts[3] = 0x00; 888 if (depth < 8) 889 regs->ts[4] = 0x06; 890 else 891 regs->ts[4] = 0x0e; 892 893 /* 894 * CRTC controller 895 */ 896 regs->crtc[0] = (mode->htotal >> 3) - 5; 897 regs->crtc[1] = (mode->hdisplay >> 3) - 1; 898 regs->crtc[2] = (mode->hsync_start >> 3) - 1; 899 regs->crtc[3] = (((mode->hsync_end >> 3) - 1) & 0x1f) | 0x80; 900 regs->crtc[4] = mode->hsync_start >> 3; 901 regs->crtc[5] = ((((mode->hsync_end >> 3) - 1) & 0x20) << 2) 902 | (((mode->hsync_end >> 3)) & 0x1f); 903 regs->crtc[6] = (mode->vtotal - 2) & 0xff; 904 regs->crtc[7] = (((mode->vtotal - 2) & 0x100) >> 8) 905 | (((mode->vdisplay - 1) & 0x100) >> 7) 906 | ((mode->vsync_start & 0x100) >> 6) 907 | (((mode->vsync_start - 1) & 0x100) >> 5) 908 | 0x10 909 | (((mode->vtotal - 2) & 0x200) >> 4) 910 | (((mode->vdisplay - 1) & 0x200) >> 3) 911 | ((mode->vsync_start & 0x200) >> 2); 912 regs->crtc[8] = 0x00; 913 regs->crtc[9] = (((mode->vsync_start - 1) & 0x200) >> 4) | 0x40; 914 if (mode->flags & VID_DBLSCAN) 915 regs->crtc[9] |= 0x80; 916 regs->crtc[10] = 0x00; 917 regs->crtc[11] = 0x00; 918 regs->crtc[12] = 0x00; 919 regs->crtc[13] = 0x00; 920 regs->crtc[14] = 0x00; 921 regs->crtc[15] = 0x00; 922 regs->crtc[16] = mode->vsync_start & 0xff; 923 regs->crtc[17] = (mode->vsync_end & 0x0f) | 0x20; 924 regs->crtc[18] = (mode->vdisplay - 1) & 0xff; 925 regs->crtc[19] = mode->hdisplay >> 4; /* XXXBJY */ 926 regs->crtc[20] = 0x00; 927 regs->crtc[21] = (mode->vsync_start - 1) & 0xff; 928 regs->crtc[22] = (mode->vsync_end - 1) & 0xff; 929 if (depth < 8) 930 regs->crtc[23] = 0xe3; 931 else 932 regs->crtc[23] = 0xc3; 933 regs->crtc[24] = 0xff; 934 935 /* 936 * Graphics display controller 937 */ 938 regs->gdc[0] = 0x00; 939 regs->gdc[1] = 0x00; 940 regs->gdc[2] = 0x00; 941 regs->gdc[3] = 0x00; 942 regs->gdc[4] = 0x00; 943 if (depth == 4) 944 regs->gdc[5] = 0x02; 945 else 946 regs->gdc[5] = 0x40; 947 regs->gdc[6] = 0x01; 948 regs->gdc[7] = 0x0f; 949 regs->gdc[8] = 0xff; 950 951 /* 952 * Attribute controller 953 */ 954 /* Set palette registers. */ 955 for (i = 0; i < 16; i++) 956 regs->atc[i] = palette[i]; 957 if (depth == 4) 958 regs->atc[16] = 0x01; /* XXXBJY was 0x81 in XFree86 */ 959 else 960 regs->atc[16] = 0x41; 961 regs->atc[17] = 0x00; /* XXXBJY just a guess */ 962 regs->atc[18] = 0x0f; 963 regs->atc[19] = 0x00; 964 regs->atc[20] = 0x00; 965 } 966 967 void 968 vga_set_mode(struct vga_handle *vh, struct vga_moderegs *regs) 969 { 970 int i; 971 972 /* Disable display. */ 973 vga_ts_write(vh, mode, vga_ts_read(vh, mode) | VGA_TS_MODE_BLANK); 974 975 /* Write misc output register. */ 976 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAW, 977 regs->miscout); 978 979 /* Set synchronous reset. */ 980 vga_ts_write(vh, syncreset, 0x01); 981 vga_ts_write(vh, mode, regs->ts[1] | VGA_TS_MODE_BLANK); 982 for (i = 2; i < VGA_TS_NREGS; i++) 983 _vga_ts_write(vh, i, regs->ts[i]); 984 /* Clear synchronous reset. */ 985 vga_ts_write(vh, syncreset, 0x03); 986 987 /* Unprotect CRTC registers 0-7. */ 988 vga_6845_write(vh, vsynce, vga_6845_read(vh, vsynce) & ~0x80); 989 /* Write CRTC registers. */ 990 for (i = 0; i < MC6845_NREGS; i++) 991 _vga_6845_write(vh, i, regs->crtc[i]); 992 993 /* Write graphics display registers. */ 994 for (i = 0; i < VGA_GDC_NREGS; i++) 995 _vga_gdc_write(vh, i, regs->gdc[i]); 996 997 /* Write attribute controller registers. */ 998 for (i = 0; i < VGA_ATC_NREGS; i++) 999 _vga_attr_write(vh, i, regs->atc[i]); 1000 1001 /* Enable display. */ 1002 vga_ts_write(vh, mode, vga_ts_read(vh, mode) & ~VGA_TS_MODE_BLANK); 1003 } 1004 1005 void 1006 vga_raster_cursor_init(struct vgascreen *scr, int existing) 1007 { 1008 struct vga_handle *vh = scr->hdl; 1009 bus_space_tag_t memt; 1010 bus_space_handle_t memh; 1011 int off; 1012 1013 if (existing) { 1014 /* 1015 * This is the first screen. At this point, scr->active is 1016 * false, so we can't use vga_raster_cursor() to do this. 1017 */ 1018 memt = vh->vh_memt; 1019 memh = vh->vh_memh; 1020 off = (scr->cursorrow * scr->type->ncols + scr->cursorcol) + 1021 scr->dispoffset / 8; 1022 1023 scr->cursortmp = scr->mem[off]; 1024 vga_raster_putchar(scr, scr->cursorrow, scr->cursorcol, 1025 scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); 1026 } else { 1027 scr->cursortmp.ch = 0; 1028 scr->cursortmp.attr = 0; 1029 scr->cursortmp.second = 0; 1030 scr->cursortmp.enc = scr->encoding; 1031 } 1032 1033 scr->cursoron = 1; 1034 } 1035 1036 void 1037 vga_raster_cursor(void *id, int on, int row, int col) 1038 { 1039 struct vgascreen *scr = id; 1040 int off, tmp; 1041 1042 /* Remove old cursor image */ 1043 if (scr->cursoron) { 1044 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1045 if (scr->active) { 1046 tmp = scr->encoding; 1047 scr->encoding = scr->cursortmp.enc; 1048 if (scr->cursortmp.second) 1049 vga_raster_putchar(id, scr->cursorrow, 1050 scr->cursorcol - 1, scr->cursortmp.ch, 1051 scr->cursortmp.attr); 1052 else 1053 vga_raster_putchar(id, scr->cursorrow, 1054 scr->cursorcol, scr->cursortmp.ch, 1055 scr->cursortmp.attr); 1056 scr->encoding = tmp; 1057 } 1058 } 1059 1060 scr->cursorrow = row; 1061 scr->cursorcol = col; 1062 1063 if ((scr->cursoron = on) == 0) 1064 return; 1065 1066 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1067 scr->cursortmp = scr->mem[off]; 1068 if (scr->active) { 1069 tmp = scr->encoding; 1070 scr->encoding = scr->cursortmp.enc; 1071 if (scr->cursortmp.second) 1072 vga_raster_putchar(id, scr->cursorrow, 1073 scr->cursorcol - 1, scr->cursortmp.ch, 1074 scr->cursortmp.attr ^ 0x77); 1075 else 1076 vga_raster_putchar(id, scr->cursorrow, 1077 scr->cursorcol, scr->cursortmp.ch, 1078 scr->cursortmp.attr ^ 0x77); 1079 scr->encoding = tmp; 1080 } 1081 } 1082 1083 static int 1084 vga_raster_mapchar(void *id, int uni, u_int *index) 1085 { 1086 struct vgascreen *scr = id; 1087 1088 if (scr->encoding == WSDISPLAY_FONTENC_IBM) 1089 return pcdisplay_mapchar(id, uni, index); 1090 else { 1091 *index = uni; 1092 return 5; 1093 } 1094 } 1095 1096 void 1097 vga_raster_putchar(void *id, int row, int col, u_int c, long attr) 1098 { 1099 struct vgascreen *scr = id; 1100 int off; 1101 struct vga_raster_font *fs; 1102 u_int tmp_ch; 1103 1104 off = row * scr->type->ncols + col; 1105 1106 LIST_FOREACH(fs, &scr->fontset, next) { 1107 if ((scr->encoding == fs->font->encoding) && 1108 (c >= fs->font->firstchar) && 1109 (c < fs->font->firstchar + fs->font->numchars) && 1110 (scr->type->fontheight == fs->font->fontheight)) { 1111 if (scr->active) { 1112 tmp_ch = c - fs->font->firstchar; 1113 _vga_raster_putchar(scr, row, col, tmp_ch, 1114 attr, fs); 1115 } 1116 1117 scr->mem[off].ch = c; 1118 scr->mem[off].attr = attr; 1119 scr->mem[off].second = 0; 1120 scr->mem[off].enc = fs->font->encoding; 1121 1122 if (fs->font->stride == 2) { 1123 scr->mem[off + 1].ch = c; 1124 scr->mem[off + 1].attr = attr; 1125 scr->mem[off + 1].second = 1; 1126 scr->mem[off + 1].enc = fs->font->encoding; 1127 } 1128 1129 return; 1130 } 1131 } 1132 1133 /* 1134 * No match found. 1135 */ 1136 if (scr->active) 1137 /* 1138 * Put a single width space character no matter what the 1139 * actual width of the character is. 1140 */ 1141 _vga_raster_putchar(scr, row, col, ' ', attr, 1142 &vga_console_fontset_ascii); 1143 scr->mem[off].ch = c; 1144 scr->mem[off].attr = attr; 1145 scr->mem[off].second = 0; 1146 scr->mem[off].enc = scr->encoding; 1147 } 1148 1149 static void 1150 _vga_raster_putchar(void *id, int row, int col, u_int c, long attr, 1151 struct vga_raster_font *fs) 1152 { 1153 struct vgascreen *scr = id; 1154 struct vga_handle *vh = scr->hdl; 1155 bus_space_tag_t memt = vh->vh_memt; 1156 bus_space_handle_t memh = vh->vh_memh; 1157 int i; 1158 int rasoff, rasoff2; 1159 int fheight = scr->type->fontheight; 1160 volatile u_int8_t dummy, pattern; 1161 u_int8_t fgcolor, bgcolor; 1162 1163 rasoff = scr->dispoffset + row * scr->type->ncols * fheight + col; 1164 rasoff2 = rasoff; 1165 1166 #if 0 1167 bgcolor = bgansitopc[attr >> 4]; 1168 fgcolor = fgansitopc[attr & 0x0f]; 1169 #else 1170 bgcolor = ((attr >> 4) & 0x0f); 1171 fgcolor = attr & 0x0f; 1172 #endif 1173 1174 if (fs->font->stride == 1) { 1175 /* Paint background. */ 1176 vga_gdc_write(vh, mode, 0x02); 1177 for (i = 0; i < fheight; i++) { 1178 bus_space_write_1(memt, memh, rasoff, bgcolor); 1179 rasoff += scr->type->ncols; 1180 } 1181 1182 /* Draw a single width character. */ 1183 vga_gdc_write(vh, mode, 0x03); 1184 vga_gdc_write(vh, setres, fgcolor); 1185 for (i = 0; i < fheight; i++) { 1186 pattern = ((u_int8_t *)fs->font->data)[c * fheight + i]; 1187 /* When pattern is 0, skip output for speed-up. */ 1188 if (pattern != 0) { 1189 dummy = bus_space_read_1(memt, memh, rasoff2); 1190 bus_space_write_1(memt, memh, rasoff2, pattern); 1191 } 1192 rasoff2 += scr->type->ncols; 1193 } 1194 } else if (fs->font->stride == 2) { 1195 /* Paint background. */ 1196 vga_gdc_write(vh, mode, 0x02); 1197 for (i = 0; i < fheight; i++) { 1198 bus_space_write_1(memt, memh, rasoff, bgcolor); 1199 bus_space_write_1(memt, memh, rasoff + 1, bgcolor); 1200 rasoff += scr->type->ncols; 1201 } 1202 1203 /* Draw a double width character. */ 1204 vga_gdc_write(vh, mode, 0x03); 1205 vga_gdc_write(vh, setres, fgcolor); 1206 for (i = 0; i < fheight; i++) { 1207 pattern = ((u_int8_t *)fs->font->data) 1208 [(c * fheight + i) * 2]; 1209 if (pattern != 0) { 1210 dummy = bus_space_read_1(memt, memh, rasoff2); 1211 bus_space_write_1(memt, memh, rasoff2, pattern); 1212 } 1213 pattern = ((u_int8_t *)fs->font->data) 1214 [(c * fheight + i) * 2 + 1]; 1215 if (pattern != 0) { 1216 rasoff2++; 1217 dummy = bus_space_read_1(memt, memh, rasoff2); 1218 bus_space_write_1(memt, memh, rasoff2, pattern); 1219 rasoff2--; 1220 } 1221 rasoff2 += scr->type->ncols; 1222 } 1223 } 1224 } 1225 1226 void 1227 vga_raster_copycols(void *id, int row, int srccol, int dstcol, int ncols) 1228 { 1229 struct vgascreen *scr = id; 1230 struct vga_handle *vh = scr->hdl; 1231 bus_space_tag_t memt = vh->vh_memt; 1232 bus_space_handle_t memh = vh->vh_memh; 1233 bus_size_t srcoff, dstoff; 1234 bus_size_t rassrcoff, rasdstoff; 1235 int i; 1236 int fheight = scr->type->fontheight; 1237 1238 srcoff = row * scr->type->ncols + srccol; 1239 dstoff = row * scr->type->ncols + dstcol; 1240 rassrcoff = scr->dispoffset + row * scr->type->ncols * fheight + srccol; 1241 rasdstoff = scr->dispoffset + row * scr->type->ncols * fheight + dstcol; 1242 1243 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1244 ncols * sizeof(struct vga_scrmem)); 1245 1246 vga_gdc_write(vh, mode, 0x01); 1247 if (scr->active) { 1248 for (i = 0; i < fheight; i++) { 1249 bus_space_copy_region_1(memt, memh, 1250 rassrcoff + i * scr->type->ncols, memh, 1251 rasdstoff + i * scr->type->ncols, ncols); 1252 } 1253 } 1254 } 1255 1256 void 1257 vga_raster_erasecols(void *id, int row, int startcol, int ncols, long fillattr) 1258 { 1259 struct vgascreen *scr = id; 1260 int i; 1261 1262 if (scr->active == 0) 1263 return; 1264 1265 for (i = startcol; i < startcol + ncols; i++) 1266 vga_raster_putchar(id, row, i, ' ', fillattr); 1267 } 1268 1269 void 1270 vga_raster_copyrows(void *id, int srcrow, int dstrow, int nrows) 1271 { 1272 struct vgascreen *scr = id; 1273 struct vga_handle *vh = scr->hdl; 1274 bus_space_tag_t memt = vh->vh_memt; 1275 bus_space_handle_t memh = vh->vh_memh; 1276 int ncols; 1277 bus_size_t srcoff, dstoff; 1278 bus_size_t rassrcoff, rasdstoff; 1279 int fheight; 1280 1281 ncols = scr->type->ncols; 1282 fheight = scr->type->fontheight; 1283 1284 srcoff = srcrow * ncols; 1285 dstoff = dstrow * ncols; 1286 rassrcoff = srcoff * fheight; 1287 rasdstoff = dstoff * fheight; 1288 1289 if (scr->active) { 1290 vga_gdc_write(vh, mode, 0x01); 1291 if (dstrow == 0 && (srcrow + nrows == scr->type->nrows)) { 1292 int cursoron = scr->cursoron; 1293 1294 if (cursoron) 1295 /* Disable cursor. */ 1296 vga_raster_cursor(scr, 0, 1297 scr->cursorrow, scr->cursorcol); 1298 1299 /* scroll up whole screen */ 1300 if ((scr->dispoffset + srcrow * ncols * fheight) 1301 <= scr->maxdispoffset) 1302 scr->dispoffset += srcrow * ncols * fheight; 1303 else { 1304 bus_space_copy_region_1(memt, memh, 1305 scr->dispoffset + rassrcoff, 1306 memh, scr->mindispoffset, 1307 nrows * ncols * fheight); 1308 scr->dispoffset = scr->mindispoffset; 1309 } 1310 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 1311 vga_6845_write(vh, startadrl, scr->dispoffset); 1312 1313 if (cursoron) 1314 /* Enable cursor. */ 1315 vga_raster_cursor(scr, 1, scr->cursorrow, 1316 scr->cursorcol); 1317 } else 1318 bus_space_copy_region_1(memt, memh, 1319 scr->dispoffset + rassrcoff, memh, 1320 scr->dispoffset + rasdstoff, 1321 nrows * ncols * fheight); 1322 } 1323 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1324 nrows * ncols * sizeof(struct vga_scrmem)); 1325 } 1326 1327 void 1328 vga_raster_eraserows(void *id, int startrow, int nrows, long fillattr) 1329 { 1330 struct vgascreen *scr = id; 1331 struct vga_handle *vh = scr->hdl; 1332 bus_space_tag_t memt = vh->vh_memt; 1333 bus_space_handle_t memh = vh->vh_memh; 1334 bus_size_t off, count; 1335 bus_size_t rasoff, rascount; 1336 int i; 1337 1338 off = startrow * scr->type->ncols; 1339 count = nrows * scr->type->ncols; 1340 rasoff = off * scr->type->fontheight; 1341 rascount = count * scr->type->fontheight; 1342 1343 if (scr->active) { 1344 u_int8_t bgcolor = (fillattr >> 4) & 0x0F; 1345 1346 /* Paint background. */ 1347 vga_gdc_write(vh, mode, 0x02); 1348 if (scr->type->ncols % 4 == 0) { 1349 u_int32_t fill = bgcolor | (bgcolor << 8) | 1350 (bgcolor << 16) | (bgcolor << 24); 1351 /* We can speed up I/O */ 1352 for (i = rasoff; i < rasoff + rascount; i += 4) 1353 bus_space_write_4(memt, memh, 1354 scr->dispoffset + i, fill); 1355 } else { 1356 u_int16_t fill = bgcolor | (bgcolor << 8); 1357 for (i = rasoff; i < rasoff + rascount; i += 2) 1358 bus_space_write_2(memt, memh, 1359 scr->dispoffset + i, fill); 1360 } 1361 } 1362 for (i = 0; i < count; i++) { 1363 scr->mem[off + i].ch = ' '; 1364 scr->mem[off + i].attr = fillattr; 1365 scr->mem[off + i].second = 0; 1366 scr->mem[off + i].enc = scr->encoding; 1367 } 1368 } 1369 1370 static int 1371 vga_raster_allocattr(void *id, int fg, int bg, int flags, long *attrp) 1372 { 1373 struct vgascreen *scr = id; 1374 struct vga_config *vc = scr->cfg; 1375 1376 if (vc->hdl.vh_mono) { 1377 if (flags & WSATTR_WSCOLORS) 1378 return (EINVAL); 1379 if (flags & WSATTR_REVERSE) 1380 *attrp = 0x70; 1381 else 1382 *attrp = 0x07; 1383 if (flags & WSATTR_UNDERLINE) 1384 *attrp |= FG_UNDERLINE; 1385 if (flags & WSATTR_HILIT) 1386 *attrp |= FG_INTENSE; 1387 } else { 1388 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1389 return (EINVAL); 1390 if (flags & WSATTR_WSCOLORS) 1391 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1392 else 1393 *attrp = 7; 1394 if (flags & WSATTR_HILIT) 1395 *attrp += 8; 1396 } 1397 if (flags & WSATTR_BLINK) 1398 *attrp |= FG_BLINK; 1399 return (0); 1400 } 1401 1402 void 1403 vga_restore_screen(struct vgascreen *scr, 1404 const struct wsscreen_descr *type, struct vga_scrmem *mem) 1405 { 1406 int i, j, off, tmp; 1407 1408 tmp = scr->encoding; 1409 for (i = 0; i < type->nrows; i++) { 1410 for (j = 0; j < type->ncols; j++) { 1411 off = i * type->ncols + j; 1412 if (mem[off].second != 1) { 1413 scr->encoding = mem[off].enc; 1414 vga_raster_putchar(scr, i, j, mem[off].ch, 1415 mem[off].attr); 1416 } 1417 } 1418 } 1419 scr->encoding = tmp; 1420 } 1421 1422 void 1423 vga_raster_setscreentype(struct vga_config *vc, 1424 const struct wsscreen_descr *type) 1425 { 1426 struct vga_handle *vh = &vc->hdl; 1427 struct vga_moderegs moderegs; 1428 1429 vga_setup_regs((struct videomode *)type->modecookie, &moderegs); 1430 vga_set_mode(vh, &moderegs); 1431 } 1432 1433 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1434 void 1435 vga_raster_replaceattr(void *id, long oldattr, long newattr) 1436 { 1437 struct vgascreen *scr = id; 1438 const struct wsscreen_descr *type = scr->type; 1439 int off; 1440 1441 for (off = 0; off < type->nrows * type->ncols; off++) { 1442 if (scr->mem[off].attr == oldattr) 1443 scr->mem[off].attr = newattr; 1444 } 1445 1446 /* Repaint the whole screen, if needed */ 1447 if (scr->active) 1448 vga_restore_screen(scr, type, scr->mem); 1449 } 1450 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 1451