vga_raster.c revision 1.30
1 /* $NetBSD: vga_raster.c,v 1.30 2007/10/19 12:00:04 ad Exp $ */ 2 3 /* 4 * Copyright (c) 2001, 2002 Bang Jun-Young 5 * Copyright (c) 2004 Julio M. Merino Vidal 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* 32 * Copyright (c) 1995, 1996 Carnegie-Mellon University. 33 * All rights reserved. 34 * 35 * Author: Chris G. Demetriou 36 * 37 * Permission to use, copy, modify and distribute this software and 38 * its documentation is hereby granted, provided that both the copyright 39 * notice and this permission notice appear in all copies of the 40 * software, derivative works or modified versions, and any portions 41 * thereof, and that both notices appear in supporting documentation. 42 * 43 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 44 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 45 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 46 * 47 * Carnegie Mellon requests users of this software to return to 48 * 49 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 50 * School of Computer Science 51 * Carnegie Mellon University 52 * Pittsburgh PA 15213-3890 53 * 54 * any improvements or extensions that they make and grant Carnegie the 55 * rights to redistribute these changes. 56 */ 57 58 #include <sys/cdefs.h> 59 __KERNEL_RCSID(0, "$NetBSD: vga_raster.c,v 1.30 2007/10/19 12:00:04 ad 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 <sys/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, void *, 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, 0); 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, 529 const struct vga_funcs *vf) 530 { 531 int console; 532 struct vga_config *vc; 533 struct wsemuldisplaydev_attach_args aa; 534 535 console = vga_is_console(iot, type); 536 537 if (console) { 538 vc = &vga_console_vc; 539 vga_console_attached = 1; 540 } else { 541 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK); 542 vga_raster_init(vc, iot, memt); 543 } 544 545 vc->vc_type = type; 546 vc->vc_funcs = vf; 547 548 sc->sc_vc = vc; 549 vc->softc = sc; 550 551 aa.console = console; 552 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); 553 aa.accessops = &vga_raster_accessops; 554 aa.accesscookie = vc; 555 556 config_found(&sc->sc_dev, &aa, wsemuldisplaydevprint); 557 } 558 559 int 560 vga_cndetach(void) 561 { 562 struct vga_config *vc; 563 struct vga_handle *vh; 564 565 vc = &vga_console_vc; 566 vh = &vc->hdl; 567 568 if (vgaconsole) { 569 bus_space_unmap(vh->vh_iot, vh->vh_ioh_vga, 0x10); 570 bus_space_unmap(vh->vh_iot, vh->vh_ioh_6845, 0x10); 571 572 return 1; 573 } 574 575 return 0; 576 } 577 578 int 579 vga_is_console(bus_space_tag_t iot, int type) 580 { 581 if (vgaconsole && 582 !vga_console_attached && 583 iot == vga_console_vc.hdl.vh_iot && 584 (vga_console_type == -1 || (type == vga_console_type))) 585 return (1); 586 return (0); 587 } 588 589 static int 590 vga_get_video(struct vga_config *vc) 591 { 592 593 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0; 594 } 595 596 static void 597 vga_set_video(struct vga_config *vc, int state) 598 { 599 int val; 600 601 vga_ts_write(&vc->hdl, syncreset, 0x01); 602 if (state) { /* unblank screen */ 603 val = vga_ts_read(&vc->hdl, mode); 604 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK); 605 #ifndef VGA_NO_VBLANK 606 val = vga_6845_read(&vc->hdl, mode); 607 vga_6845_write(&vc->hdl, mode, val | 0x80); 608 #endif 609 } else { /* blank screen */ 610 val = vga_ts_read(&vc->hdl, mode); 611 vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK); 612 #ifndef VGA_NO_VBLANK 613 val = vga_6845_read(&vc->hdl, mode); 614 vga_6845_write(&vc->hdl, mode, val & ~0x80); 615 #endif 616 } 617 vga_ts_write(&vc->hdl, syncreset, 0x03); 618 } 619 620 int 621 vga_raster_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 622 struct lwp *l) 623 { 624 struct vga_config *vc = v; 625 const struct vga_funcs *vf = vc->vc_funcs; 626 627 switch (cmd) { 628 case WSDISPLAYIO_GTYPE: 629 *(int *)data = vc->vc_type; 630 return 0; 631 632 case WSDISPLAYIO_GINFO: 633 /* XXX should get detailed hardware information here */ 634 return EPASSTHROUGH; 635 636 case WSDISPLAYIO_GVIDEO: 637 #if 1 638 *(int *)data = (vga_get_video(vc) ? 639 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); 640 return 0; 641 #endif 642 643 case WSDISPLAYIO_SVIDEO: 644 #if 1 645 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 646 return 0; 647 #endif 648 649 case WSDISPLAYIO_GETCMAP: 650 case WSDISPLAYIO_PUTCMAP: 651 case WSDISPLAYIO_GCURPOS: 652 case WSDISPLAYIO_SCURPOS: 653 case WSDISPLAYIO_GCURMAX: 654 case WSDISPLAYIO_GCURSOR: 655 case WSDISPLAYIO_SCURSOR: 656 /* NONE of these operations are by the generic VGA driver. */ 657 return EPASSTHROUGH; 658 } 659 660 if (vc->vc_funcs == NULL) 661 return (EPASSTHROUGH); 662 663 if (vf->vf_ioctl == NULL) 664 return (EPASSTHROUGH); 665 666 return ((*vf->vf_ioctl)(v, cmd, data, flag, l)); 667 } 668 669 static paddr_t 670 vga_raster_mmap(void *v, void *vs, off_t offset, int prot) 671 { 672 struct vga_config *vc = v; 673 const struct vga_funcs *vf = vc->vc_funcs; 674 675 if (vc->vc_funcs == NULL) 676 return (-1); 677 678 if (vf->vf_mmap == NULL) 679 return (-1); 680 681 return ((*vf->vf_mmap)(v, offset, prot)); 682 } 683 684 int 685 vga_raster_alloc_screen(void *v, const struct wsscreen_descr *type, 686 void **cookiep, int *curxp, int *curyp, long *defattrp) 687 { 688 struct vga_config *vc = v; 689 struct vgascreen *scr; 690 691 if (vc->nscreens == 1) { 692 vc->screens.lh_first->mem = boot_scrmem; 693 } 694 695 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 696 vga_raster_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 697 698 if (vc->nscreens == 1) { 699 scr->active = 1; 700 vc->active = scr; 701 vc->currenttype = type; 702 } else { 703 scr->mem = malloc(sizeof(struct vga_scrmem) * 704 type->ncols * type->nrows, M_DEVBUF, M_WAITOK); 705 vga_raster_eraserows(scr, 0, type->nrows, *defattrp); 706 } 707 708 *cookiep = scr; 709 *curxp = scr->cursorcol; 710 *curyp = scr->cursorrow; 711 712 return (0); 713 } 714 715 void 716 vga_raster_free_screen(void *v, void *cookie) 717 { 718 struct vgascreen *vs = cookie; 719 struct vga_config *vc = vs->cfg; 720 721 LIST_REMOVE(vs, next); 722 vc->nscreens--; 723 if (vs != &vga_console_screen) 724 free(vs, M_DEVBUF); 725 else 726 panic("vga_raster_free_screen: console"); 727 728 if (vc->active == vs) 729 vc->active = 0; 730 } 731 732 int 733 vga_raster_show_screen(void *v, void *cookie, int waitok, 734 void (*cb)(void *, int, int), void *cbarg) 735 { 736 struct vgascreen *scr = cookie, *oldscr; 737 struct vga_config *vc = scr->cfg; 738 739 oldscr = vc->active; /* can be NULL! */ 740 if (scr == oldscr) { 741 return (0); 742 } 743 744 vc->wantedscreen = cookie; 745 vc->switchcb = cb; 746 vc->switchcbarg = cbarg; 747 if (cb) { 748 callout_reset(&vc->vc_switch_callout, 0, 749 (void(*)(void *))vga_switch_screen, vc); 750 return (EAGAIN); 751 } 752 753 vga_switch_screen(vc); 754 return (0); 755 } 756 757 void 758 vga_switch_screen(struct vga_config *vc) 759 { 760 struct vgascreen *scr, *oldscr; 761 struct vga_handle *vh = &vc->hdl; 762 const struct wsscreen_descr *type; 763 764 scr = vc->wantedscreen; 765 if (!scr) { 766 printf("vga_switch_screen: disappeared\n"); 767 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 768 return; 769 } 770 type = scr->type; 771 oldscr = vc->active; /* can be NULL! */ 772 #ifdef DIAGNOSTIC 773 if (oldscr) { 774 if (!oldscr->active) 775 panic("vga_raster_show_screen: not active"); 776 if (oldscr->type != vc->currenttype) 777 panic("vga_raster_show_screen: bad type"); 778 } 779 #endif 780 if (scr == oldscr) { 781 return; 782 } 783 #ifdef DIAGNOSTIC 784 if (scr->active) 785 panic("vga_raster_show_screen: active"); 786 #endif 787 788 if (oldscr) 789 oldscr->active = 0; 790 791 if (vc->currenttype != type) { 792 vga_raster_setscreentype(vc, type); 793 vc->currenttype = type; 794 } 795 796 scr->dispoffset = scr->mindispoffset; 797 798 if (!oldscr || (scr->dispoffset != oldscr->dispoffset)) { 799 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 800 vga_6845_write(vh, startadrl, scr->dispoffset); 801 } 802 803 /* Clear the entire screen. */ 804 vga_gdc_write(vh, mode, 0x02); 805 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x2000); 806 807 scr->active = 1; 808 vga_restore_screen(scr, type, scr->mem); 809 810 vc->active = scr; 811 812 vga_raster_cursor(scr, scr->cursoron, scr->cursorrow, scr->cursorcol); 813 814 vc->wantedscreen = 0; 815 if (vc->switchcb) 816 (*vc->switchcb)(vc->switchcbarg, 0, 0); 817 } 818 819 static int 820 vga_raster_load_font(void *v, void *id, 821 struct wsdisplay_font *data) 822 { 823 /* XXX */ 824 printf("vga_raster_load_font: called\n"); 825 826 return (0); 827 } 828 829 void 830 vga_raster_setup_font(struct vga_config *vc, struct vgascreen *scr) 831 { 832 struct vga_raster_font *vf; 833 struct wsdisplay_font *wf; 834 int cookie; 835 836 LIST_FOREACH(vf, &vc->vc_fontlist, next) { 837 if (wsfont_matches(vf->font, 0, 0, scr->type->fontheight, 0)) { 838 scr->encoding = vf->font->encoding; 839 LIST_INSERT_HEAD(&scr->fontset, vf, next); 840 return; 841 } 842 } 843 844 cookie = wsfont_find(NULL, 0, scr->type->fontheight, 0, 845 WSDISPLAY_FONTORDER_L2R, 0); 846 if (cookie == -1) 847 return; 848 849 if (wsfont_lock(cookie, &wf)) 850 return; 851 852 vf = malloc(sizeof(struct vga_raster_font), M_DEVBUF, M_NOWAIT); 853 if (!vf) { 854 wsfont_unlock(cookie); 855 return; 856 } 857 858 vf->font = wf; 859 scr->encoding = vf->font->encoding; 860 LIST_INSERT_HEAD(&scr->fontset, vf, next); 861 } 862 863 void 864 vga_setup_regs(struct videomode *mode, struct vga_moderegs *regs) 865 { 866 int i; 867 int depth = 4; /* XXXBJY hardcoded for now */ 868 const u_int8_t palette[] = { 869 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 870 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f 871 }; 872 873 /* 874 * Compute hsync and vsync polarity. 875 */ 876 if ((mode->flags & (VID_PHSYNC | VID_NHSYNC)) 877 && (mode->flags & (VID_PVSYNC | VID_NVSYNC))) { 878 regs->miscout = 0x23; 879 if (mode->flags & VID_NHSYNC) 880 regs->miscout |= 0x40; 881 if (mode->flags & VID_NVSYNC) 882 regs->miscout |= 0x80; 883 } else { 884 if (mode->flags & VID_DBLSCAN) 885 mode->vdisplay *= 2; 886 if (mode->vdisplay < 400) 887 regs->miscout = 0xa3; 888 else if (mode->vdisplay < 480) 889 regs->miscout = 0x63; 890 else if (mode->vdisplay < 768) 891 regs->miscout = 0xe3; 892 else 893 regs->miscout = 0x23; 894 } 895 896 /* 897 * Time sequencer 898 */ 899 if (depth == 4) 900 regs->ts[0] = 0x02; 901 else 902 regs->ts[0] = 0x00; 903 if (mode->flags & VID_CLKDIV2) 904 regs->ts[1] = 0x09; 905 else 906 regs->ts[1] = 0x01; 907 regs->ts[2] = 0x0f; 908 regs->ts[3] = 0x00; 909 if (depth < 8) 910 regs->ts[4] = 0x06; 911 else 912 regs->ts[4] = 0x0e; 913 914 /* 915 * CRTC controller 916 */ 917 regs->crtc[0] = (mode->htotal >> 3) - 5; 918 regs->crtc[1] = (mode->hdisplay >> 3) - 1; 919 regs->crtc[2] = (mode->hsync_start >> 3) - 1; 920 regs->crtc[3] = (((mode->hsync_end >> 3) - 1) & 0x1f) | 0x80; 921 regs->crtc[4] = mode->hsync_start >> 3; 922 regs->crtc[5] = ((((mode->hsync_end >> 3) - 1) & 0x20) << 2) 923 | (((mode->hsync_end >> 3)) & 0x1f); 924 regs->crtc[6] = (mode->vtotal - 2) & 0xff; 925 regs->crtc[7] = (((mode->vtotal - 2) & 0x100) >> 8) 926 | (((mode->vdisplay - 1) & 0x100) >> 7) 927 | ((mode->vsync_start & 0x100) >> 6) 928 | (((mode->vsync_start - 1) & 0x100) >> 5) 929 | 0x10 930 | (((mode->vtotal - 2) & 0x200) >> 4) 931 | (((mode->vdisplay - 1) & 0x200) >> 3) 932 | ((mode->vsync_start & 0x200) >> 2); 933 regs->crtc[8] = 0x00; 934 regs->crtc[9] = (((mode->vsync_start - 1) & 0x200) >> 4) | 0x40; 935 if (mode->flags & VID_DBLSCAN) 936 regs->crtc[9] |= 0x80; 937 regs->crtc[10] = 0x00; 938 regs->crtc[11] = 0x00; 939 regs->crtc[12] = 0x00; 940 regs->crtc[13] = 0x00; 941 regs->crtc[14] = 0x00; 942 regs->crtc[15] = 0x00; 943 regs->crtc[16] = mode->vsync_start & 0xff; 944 regs->crtc[17] = (mode->vsync_end & 0x0f) | 0x20; 945 regs->crtc[18] = (mode->vdisplay - 1) & 0xff; 946 regs->crtc[19] = mode->hdisplay >> 4; /* XXXBJY */ 947 regs->crtc[20] = 0x00; 948 regs->crtc[21] = (mode->vsync_start - 1) & 0xff; 949 regs->crtc[22] = (mode->vsync_end - 1) & 0xff; 950 if (depth < 8) 951 regs->crtc[23] = 0xe3; 952 else 953 regs->crtc[23] = 0xc3; 954 regs->crtc[24] = 0xff; 955 956 /* 957 * Graphics display controller 958 */ 959 regs->gdc[0] = 0x00; 960 regs->gdc[1] = 0x00; 961 regs->gdc[2] = 0x00; 962 regs->gdc[3] = 0x00; 963 regs->gdc[4] = 0x00; 964 if (depth == 4) 965 regs->gdc[5] = 0x02; 966 else 967 regs->gdc[5] = 0x40; 968 regs->gdc[6] = 0x01; 969 regs->gdc[7] = 0x0f; 970 regs->gdc[8] = 0xff; 971 972 /* 973 * Attribute controller 974 */ 975 /* Set palette registers. */ 976 for (i = 0; i < 16; i++) 977 regs->atc[i] = palette[i]; 978 if (depth == 4) 979 regs->atc[16] = 0x01; /* XXXBJY was 0x81 in XFree86 */ 980 else 981 regs->atc[16] = 0x41; 982 regs->atc[17] = 0x00; /* XXXBJY just a guess */ 983 regs->atc[18] = 0x0f; 984 regs->atc[19] = 0x00; 985 regs->atc[20] = 0x00; 986 } 987 988 void 989 vga_set_mode(struct vga_handle *vh, struct vga_moderegs *regs) 990 { 991 int i; 992 993 /* Disable display. */ 994 vga_ts_write(vh, mode, vga_ts_read(vh, mode) | VGA_TS_MODE_BLANK); 995 996 /* Write misc output register. */ 997 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAW, 998 regs->miscout); 999 1000 /* Set synchronous reset. */ 1001 vga_ts_write(vh, syncreset, 0x01); 1002 vga_ts_write(vh, mode, regs->ts[1] | VGA_TS_MODE_BLANK); 1003 for (i = 2; i < VGA_TS_NREGS; i++) 1004 _vga_ts_write(vh, i, regs->ts[i]); 1005 /* Clear synchronous reset. */ 1006 vga_ts_write(vh, syncreset, 0x03); 1007 1008 /* Unprotect CRTC registers 0-7. */ 1009 vga_6845_write(vh, vsynce, vga_6845_read(vh, vsynce) & ~0x80); 1010 /* Write CRTC registers. */ 1011 for (i = 0; i < MC6845_NREGS; i++) 1012 _vga_6845_write(vh, i, regs->crtc[i]); 1013 1014 /* Write graphics display registers. */ 1015 for (i = 0; i < VGA_GDC_NREGS; i++) 1016 _vga_gdc_write(vh, i, regs->gdc[i]); 1017 1018 /* Write attribute controller registers. */ 1019 for (i = 0; i < VGA_ATC_NREGS; i++) 1020 _vga_attr_write(vh, i, regs->atc[i]); 1021 1022 /* Enable display. */ 1023 vga_ts_write(vh, mode, vga_ts_read(vh, mode) & ~VGA_TS_MODE_BLANK); 1024 } 1025 1026 void 1027 vga_raster_cursor_init(struct vgascreen *scr, int existing) 1028 { 1029 struct vga_handle *vh = scr->hdl; 1030 bus_space_tag_t memt; 1031 bus_space_handle_t memh; 1032 int off; 1033 1034 if (existing) { 1035 /* 1036 * This is the first screen. At this point, scr->active is 1037 * false, so we can't use vga_raster_cursor() to do this. 1038 */ 1039 memt = vh->vh_memt; 1040 memh = vh->vh_memh; 1041 off = (scr->cursorrow * scr->type->ncols + scr->cursorcol) + 1042 scr->dispoffset / 8; 1043 1044 scr->cursortmp = scr->mem[off]; 1045 vga_raster_putchar(scr, scr->cursorrow, scr->cursorcol, 1046 scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); 1047 } else { 1048 scr->cursortmp.ch = 0; 1049 scr->cursortmp.attr = 0; 1050 scr->cursortmp.second = 0; 1051 scr->cursortmp.enc = scr->encoding; 1052 } 1053 1054 scr->cursoron = 1; 1055 } 1056 1057 void 1058 vga_raster_cursor(void *id, int on, int row, int col) 1059 { 1060 struct vgascreen *scr = id; 1061 int off, tmp; 1062 1063 /* Remove old cursor image */ 1064 if (scr->cursoron) { 1065 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 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); 1073 else 1074 vga_raster_putchar(id, scr->cursorrow, 1075 scr->cursorcol, scr->cursortmp.ch, 1076 scr->cursortmp.attr); 1077 scr->encoding = tmp; 1078 } 1079 } 1080 1081 scr->cursorrow = row; 1082 scr->cursorcol = col; 1083 1084 if ((scr->cursoron = on) == 0) 1085 return; 1086 1087 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1088 scr->cursortmp = scr->mem[off]; 1089 if (scr->active) { 1090 tmp = scr->encoding; 1091 scr->encoding = scr->cursortmp.enc; 1092 if (scr->cursortmp.second) 1093 vga_raster_putchar(id, scr->cursorrow, 1094 scr->cursorcol - 1, scr->cursortmp.ch, 1095 scr->cursortmp.attr ^ 0x77); 1096 else 1097 vga_raster_putchar(id, scr->cursorrow, 1098 scr->cursorcol, scr->cursortmp.ch, 1099 scr->cursortmp.attr ^ 0x77); 1100 scr->encoding = tmp; 1101 } 1102 } 1103 1104 static int 1105 vga_raster_mapchar(void *id, int uni, u_int *index) 1106 { 1107 struct vgascreen *scr = id; 1108 1109 if (scr->encoding == WSDISPLAY_FONTENC_IBM) 1110 return pcdisplay_mapchar(id, uni, index); 1111 else { 1112 *index = uni; 1113 return 5; 1114 } 1115 } 1116 1117 void 1118 vga_raster_putchar(void *id, int row, int col, u_int c, long attr) 1119 { 1120 struct vgascreen *scr = id; 1121 size_t off; 1122 struct vga_raster_font *fs; 1123 u_int tmp_ch; 1124 1125 off = row * scr->type->ncols + col; 1126 1127 if (__predict_false(off >= (scr->type->ncols * scr->type->nrows))) 1128 return; 1129 1130 LIST_FOREACH(fs, &scr->fontset, next) { 1131 if ((scr->encoding == fs->font->encoding) && 1132 (c >= fs->font->firstchar) && 1133 (c < fs->font->firstchar + fs->font->numchars) && 1134 (scr->type->fontheight == fs->font->fontheight)) { 1135 if (scr->active) { 1136 tmp_ch = c - fs->font->firstchar; 1137 _vga_raster_putchar(scr, row, col, tmp_ch, 1138 attr, fs); 1139 } 1140 1141 scr->mem[off].ch = c; 1142 scr->mem[off].attr = attr; 1143 scr->mem[off].second = 0; 1144 scr->mem[off].enc = fs->font->encoding; 1145 1146 if (fs->font->stride == 2) { 1147 scr->mem[off + 1].ch = c; 1148 scr->mem[off + 1].attr = attr; 1149 scr->mem[off + 1].second = 1; 1150 scr->mem[off + 1].enc = fs->font->encoding; 1151 } 1152 1153 return; 1154 } 1155 } 1156 1157 /* 1158 * No match found. 1159 */ 1160 if (scr->active) 1161 /* 1162 * Put a single width space character no matter what the 1163 * actual width of the character is. 1164 */ 1165 _vga_raster_putchar(scr, row, col, ' ', attr, 1166 &vga_console_fontset_ascii); 1167 scr->mem[off].ch = c; 1168 scr->mem[off].attr = attr; 1169 scr->mem[off].second = 0; 1170 scr->mem[off].enc = scr->encoding; 1171 } 1172 1173 static void 1174 _vga_raster_putchar(void *id, int row, int col, u_int c, long attr, 1175 struct vga_raster_font *fs) 1176 { 1177 struct vgascreen *scr = id; 1178 struct vga_handle *vh = scr->hdl; 1179 bus_space_tag_t memt = vh->vh_memt; 1180 bus_space_handle_t memh = vh->vh_memh; 1181 int i; 1182 int rasoff, rasoff2; 1183 int fheight = scr->type->fontheight; 1184 volatile u_int8_t dummy, pattern; 1185 u_int8_t fgcolor, bgcolor; 1186 1187 rasoff = scr->dispoffset + row * scr->type->ncols * fheight + col; 1188 rasoff2 = rasoff; 1189 1190 #if 0 1191 bgcolor = bgansitopc[attr >> 4]; 1192 fgcolor = fgansitopc[attr & 0x0f]; 1193 #else 1194 bgcolor = ((attr >> 4) & 0x0f); 1195 fgcolor = attr & 0x0f; 1196 #endif 1197 1198 if (fs->font->stride == 1) { 1199 /* Paint background. */ 1200 vga_gdc_write(vh, mode, 0x02); 1201 for (i = 0; i < fheight; i++) { 1202 bus_space_write_1(memt, memh, rasoff, bgcolor); 1203 rasoff += scr->type->ncols; 1204 } 1205 1206 /* Draw a single width character. */ 1207 vga_gdc_write(vh, mode, 0x03); 1208 vga_gdc_write(vh, setres, fgcolor); 1209 for (i = 0; i < fheight; i++) { 1210 pattern = ((u_int8_t *)fs->font->data)[c * fheight + i]; 1211 /* When pattern is 0, skip output for speed-up. */ 1212 if (pattern != 0) { 1213 dummy = bus_space_read_1(memt, memh, rasoff2); 1214 bus_space_write_1(memt, memh, rasoff2, pattern); 1215 } 1216 rasoff2 += scr->type->ncols; 1217 } 1218 } else if (fs->font->stride == 2) { 1219 /* Paint background. */ 1220 vga_gdc_write(vh, mode, 0x02); 1221 for (i = 0; i < fheight; i++) { 1222 bus_space_write_1(memt, memh, rasoff, bgcolor); 1223 bus_space_write_1(memt, memh, rasoff + 1, bgcolor); 1224 rasoff += scr->type->ncols; 1225 } 1226 1227 /* Draw a double width character. */ 1228 vga_gdc_write(vh, mode, 0x03); 1229 vga_gdc_write(vh, setres, fgcolor); 1230 for (i = 0; i < fheight; i++) { 1231 pattern = ((u_int8_t *)fs->font->data) 1232 [(c * fheight + i) * 2]; 1233 if (pattern != 0) { 1234 dummy = bus_space_read_1(memt, memh, rasoff2); 1235 bus_space_write_1(memt, memh, rasoff2, pattern); 1236 } 1237 pattern = ((u_int8_t *)fs->font->data) 1238 [(c * fheight + i) * 2 + 1]; 1239 if (pattern != 0) { 1240 rasoff2++; 1241 dummy = bus_space_read_1(memt, memh, rasoff2); 1242 bus_space_write_1(memt, memh, rasoff2, pattern); 1243 rasoff2--; 1244 } 1245 rasoff2 += scr->type->ncols; 1246 } 1247 } 1248 } 1249 1250 void 1251 vga_raster_copycols(void *id, int row, int srccol, int dstcol, int ncols) 1252 { 1253 struct vgascreen *scr = id; 1254 struct vga_handle *vh = scr->hdl; 1255 bus_space_tag_t memt = vh->vh_memt; 1256 bus_space_handle_t memh = vh->vh_memh; 1257 bus_size_t srcoff, dstoff; 1258 bus_size_t rassrcoff, rasdstoff; 1259 int i; 1260 int fheight = scr->type->fontheight; 1261 1262 srcoff = row * scr->type->ncols + srccol; 1263 dstoff = row * scr->type->ncols + dstcol; 1264 rassrcoff = scr->dispoffset + row * scr->type->ncols * fheight + srccol; 1265 rasdstoff = scr->dispoffset + row * scr->type->ncols * fheight + dstcol; 1266 1267 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1268 ncols * sizeof(struct vga_scrmem)); 1269 1270 vga_gdc_write(vh, mode, 0x01); 1271 if (scr->active) { 1272 for (i = 0; i < fheight; i++) { 1273 bus_space_copy_region_1(memt, memh, 1274 rassrcoff + i * scr->type->ncols, memh, 1275 rasdstoff + i * scr->type->ncols, ncols); 1276 } 1277 } 1278 } 1279 1280 void 1281 vga_raster_erasecols(void *id, int row, int startcol, int ncols, long fillattr) 1282 { 1283 struct vgascreen *scr = id; 1284 int i; 1285 1286 if (scr->active == 0) 1287 return; 1288 1289 for (i = startcol; i < startcol + ncols; i++) 1290 vga_raster_putchar(id, row, i, ' ', fillattr); 1291 } 1292 1293 void 1294 vga_raster_copyrows(void *id, int srcrow, int dstrow, int nrows) 1295 { 1296 struct vgascreen *scr = id; 1297 struct vga_handle *vh = scr->hdl; 1298 bus_space_tag_t memt = vh->vh_memt; 1299 bus_space_handle_t memh = vh->vh_memh; 1300 int ncols; 1301 bus_size_t srcoff, dstoff; 1302 bus_size_t rassrcoff, rasdstoff; 1303 int fheight; 1304 1305 ncols = scr->type->ncols; 1306 fheight = scr->type->fontheight; 1307 1308 srcoff = srcrow * ncols; 1309 dstoff = dstrow * ncols; 1310 rassrcoff = srcoff * fheight; 1311 rasdstoff = dstoff * fheight; 1312 1313 if (scr->active) { 1314 vga_gdc_write(vh, mode, 0x01); 1315 if (dstrow == 0 && (srcrow + nrows == scr->type->nrows)) { 1316 int cursoron = scr->cursoron; 1317 1318 if (cursoron) 1319 /* Disable cursor. */ 1320 vga_raster_cursor(scr, 0, 1321 scr->cursorrow, scr->cursorcol); 1322 1323 /* scroll up whole screen */ 1324 if ((scr->dispoffset + srcrow * ncols * fheight) 1325 <= scr->maxdispoffset) 1326 scr->dispoffset += srcrow * ncols * fheight; 1327 else { 1328 bus_space_copy_region_1(memt, memh, 1329 scr->dispoffset + rassrcoff, 1330 memh, scr->mindispoffset, 1331 nrows * ncols * fheight); 1332 scr->dispoffset = scr->mindispoffset; 1333 } 1334 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 1335 vga_6845_write(vh, startadrl, scr->dispoffset); 1336 1337 if (cursoron) 1338 /* Enable cursor. */ 1339 vga_raster_cursor(scr, 1, scr->cursorrow, 1340 scr->cursorcol); 1341 } else 1342 bus_space_copy_region_1(memt, memh, 1343 scr->dispoffset + rassrcoff, memh, 1344 scr->dispoffset + rasdstoff, 1345 nrows * ncols * fheight); 1346 } 1347 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1348 nrows * ncols * sizeof(struct vga_scrmem)); 1349 } 1350 1351 void 1352 vga_raster_eraserows(void *id, int startrow, int nrows, long fillattr) 1353 { 1354 struct vgascreen *scr = id; 1355 struct vga_handle *vh = scr->hdl; 1356 bus_space_tag_t memt = vh->vh_memt; 1357 bus_space_handle_t memh = vh->vh_memh; 1358 bus_size_t off, count; 1359 bus_size_t rasoff, rascount; 1360 int i; 1361 1362 off = startrow * scr->type->ncols; 1363 count = nrows * scr->type->ncols; 1364 rasoff = off * scr->type->fontheight; 1365 rascount = count * scr->type->fontheight; 1366 1367 if (scr->active) { 1368 u_int8_t bgcolor = (fillattr >> 4) & 0x0F; 1369 1370 /* Paint background. */ 1371 vga_gdc_write(vh, mode, 0x02); 1372 if (scr->type->ncols % 4 == 0) { 1373 u_int32_t fill = bgcolor | (bgcolor << 8) | 1374 (bgcolor << 16) | (bgcolor << 24); 1375 /* We can speed up I/O */ 1376 for (i = rasoff; i < rasoff + rascount; i += 4) 1377 bus_space_write_4(memt, memh, 1378 scr->dispoffset + i, fill); 1379 } else { 1380 u_int16_t fill = bgcolor | (bgcolor << 8); 1381 for (i = rasoff; i < rasoff + rascount; i += 2) 1382 bus_space_write_2(memt, memh, 1383 scr->dispoffset + i, fill); 1384 } 1385 } 1386 for (i = 0; i < count; i++) { 1387 scr->mem[off + i].ch = ' '; 1388 scr->mem[off + i].attr = fillattr; 1389 scr->mem[off + i].second = 0; 1390 scr->mem[off + i].enc = scr->encoding; 1391 } 1392 } 1393 1394 static int 1395 vga_raster_allocattr(void *id, int fg, int bg, int flags, long *attrp) 1396 { 1397 struct vgascreen *scr = id; 1398 struct vga_config *vc = scr->cfg; 1399 1400 if (__predict_false((unsigned int)fg >= sizeof(fgansitopc) || 1401 (unsigned int)bg >= sizeof(bgansitopc))) 1402 return (EINVAL); 1403 1404 if (vc->hdl.vh_mono) { 1405 if (flags & WSATTR_WSCOLORS) 1406 return (EINVAL); 1407 if (flags & WSATTR_REVERSE) 1408 *attrp = 0x70; 1409 else 1410 *attrp = 0x07; 1411 if (flags & WSATTR_UNDERLINE) 1412 *attrp |= FG_UNDERLINE; 1413 if (flags & WSATTR_HILIT) 1414 *attrp |= FG_INTENSE; 1415 } else { 1416 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1417 return (EINVAL); 1418 if (flags & WSATTR_WSCOLORS) 1419 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1420 else 1421 *attrp = 7; 1422 if (flags & WSATTR_HILIT) 1423 *attrp += 8; 1424 } 1425 if (flags & WSATTR_BLINK) 1426 *attrp |= FG_BLINK; 1427 return (0); 1428 } 1429 1430 void 1431 vga_restore_screen(struct vgascreen *scr, 1432 const struct wsscreen_descr *type, struct vga_scrmem *mem) 1433 { 1434 int i, j, off, tmp; 1435 1436 tmp = scr->encoding; 1437 for (i = 0; i < type->nrows; i++) { 1438 for (j = 0; j < type->ncols; j++) { 1439 off = i * type->ncols + j; 1440 if (mem[off].second != 1) { 1441 scr->encoding = mem[off].enc; 1442 vga_raster_putchar(scr, i, j, mem[off].ch, 1443 mem[off].attr); 1444 } 1445 } 1446 } 1447 scr->encoding = tmp; 1448 } 1449 1450 void 1451 vga_raster_setscreentype(struct vga_config *vc, 1452 const struct wsscreen_descr *type) 1453 { 1454 struct vga_handle *vh = &vc->hdl; 1455 struct vga_moderegs moderegs; 1456 1457 vga_setup_regs((struct videomode *)type->modecookie, &moderegs); 1458 vga_set_mode(vh, &moderegs); 1459 } 1460 1461 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1462 void 1463 vga_raster_replaceattr(void *id, long oldattr, long newattr) 1464 { 1465 struct vgascreen *scr = id; 1466 const struct wsscreen_descr *type = scr->type; 1467 int off; 1468 1469 for (off = 0; off < type->nrows * type->ncols; off++) { 1470 if (scr->mem[off].attr == oldattr) 1471 scr->mem[off].attr = newattr; 1472 } 1473 1474 /* Repaint the whole screen, if needed */ 1475 if (scr->active) 1476 vga_restore_screen(scr, type, scr->mem); 1477 } 1478 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 1479
Indexes created Thu Sep 25 16:09:42 GMT 2025