vga_raster.c revision 1.33
1 /* $NetBSD: vga_raster.c,v 1.33 2008/10/19 17:47:38 jmcneill 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 1.33 2008/10/19 17:47:38 jmcneill 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 if (typestr) 353 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 354 &vga_screenlist_mono : &vga_screenlist, typestr); 355 if (scr != vga_console_vc.currenttype) 356 vga_console_vc.currenttype = scr; 357 #else 358 scr = vga_console_vc.currenttype; 359 #endif 360 vga_raster_init_screen(&vga_console_vc, &vga_console_screen, scr, 1, 361 &defattr); 362 363 vga_console_screen.active = 1; 364 vga_console_vc.active = &vga_console_screen; 365 366 wsdisplay_cnattach(scr, &vga_console_screen, 367 vga_console_screen.cursorcol, vga_console_screen.cursorrow, 368 defattr); 369 370 vgaconsole = 1; 371 vga_console_type = type; 372 return (0); 373 } 374 375 void 376 vga_raster_init(struct vga_config *vc, bus_space_tag_t iot, 377 bus_space_tag_t memt) 378 { 379 struct vga_handle *vh = &vc->hdl; 380 u_int8_t mor; 381 struct vga_raster_font *vf; 382 383 vh->vh_iot = iot; 384 vh->vh_memt = memt; 385 386 if (bus_space_map(vh->vh_iot, 0x3c0, 0x10, 0, &vh->vh_ioh_vga)) 387 panic("vga_raster_init: couldn't map vga io"); 388 389 /* read "misc output register" */ 390 mor = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAR); 391 vh->vh_mono = !(mor & 1); 392 393 if (bus_space_map(vh->vh_iot, (vh->vh_mono ? 0x3b0 : 0x3d0), 0x10, 0, 394 &vh->vh_ioh_6845)) 395 panic("vga_raster_init: couldn't map 6845 io"); 396 397 if (bus_space_map(vh->vh_memt, 0xa0000, 0x20000, 0, &vh->vh_allmemh)) 398 panic("vga_raster_init: couldn't map memory"); 399 400 if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh, 0, 0x10000, 401 &vh->vh_memh)) 402 panic("vga_raster_init: mem subrange failed"); 403 404 /* should only reserve the space (no need to map - save KVM) */ 405 vc->vc_biostag = memt; 406 if (bus_space_map(vc->vc_biostag, 0xc0000, 0x8000, 0, &vc->vc_bioshdl)) 407 vc->vc_biosmapped = 0; 408 else 409 vc->vc_biosmapped = 1; 410 411 vc->nscreens = 0; 412 LIST_INIT(&vc->screens); 413 vc->active = NULL; 414 vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen; 415 callout_init(&vc->vc_switch_callout, 0); 416 417 wsfont_init(); 418 vc->nfonts = 1; 419 LIST_INIT(&vc->vc_fontlist); 420 vf = &vga_console_fontset_ascii; 421 if (vga_no_builtinfont) { 422 struct wsdisplay_font *wf; 423 int cookie; 424 425 /* prefer 8x16 pixel font */ 426 cookie = wsfont_find(NULL, 8, 16, 0, WSDISPLAY_FONTORDER_L2R, 427 0); 428 if (cookie == -1) 429 cookie = wsfont_find(NULL, 0, 0, 0, 430 WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R); 431 if (cookie == -1 || wsfont_lock(cookie, &wf)) 432 panic("vga_raster_init: can't load console font"); 433 vf->font = wf; 434 } else { 435 vga_load_builtinfont(vh, builtinfont_data, 0, 256); 436 vf->font = &builtinfont; 437 } 438 LIST_INSERT_HEAD(&vc->vc_fontlist, vf, next); 439 } 440 441 void 442 vga_raster_init_screen(struct vga_config *vc, struct vgascreen *scr, 443 const struct wsscreen_descr *type, int existing, long *attrp) 444 { 445 int cpos; 446 int res; 447 struct vga_handle *vh; 448 449 scr->cfg = vc; 450 scr->hdl = &vc->hdl; 451 scr->type = type; 452 scr->mindispoffset = 0; 453 scr->maxdispoffset = scr->dispoffset + 454 type->nrows * type->ncols * type->fontheight; 455 vh = &vc->hdl; 456 457 LIST_INIT(&scr->fontset); 458 vga_raster_setup_font(vc, scr); 459 460 if (existing) { 461 int i; 462 463 cpos = vga_6845_read(vh, cursorh) << 8; 464 cpos |= vga_6845_read(vh, cursorl); 465 466 /* make sure we have a valid cursor position */ 467 if (cpos < 0 || cpos >= type->nrows * type->ncols) 468 cpos = 0; 469 470 scr->dispoffset = vga_6845_read(vh, startadrh) << 9; 471 scr->dispoffset |= vga_6845_read(vh, startadrl) << 1; 472 473 /* make sure we have a valid memory offset */ 474 if (scr->dispoffset < scr->mindispoffset || 475 scr->dispoffset > scr->maxdispoffset) 476 scr->dispoffset = scr->mindispoffset; 477 478 scr->mem = boot_scrmem; 479 scr->active = 1; 480 481 /* Save the current screen to memory. XXXBJY assume 80x25 */ 482 for (i = 0; i < 80 * 25; i++) { 483 scr->mem[i].ch = bus_space_read_1(vh->vh_memt, 484 vh->vh_allmemh, 0x18000 + i * 2); 485 scr->mem[i].attr = bus_space_read_1(vh->vh_memt, 486 vh->vh_allmemh, 0x18000 + i * 2 + 1); 487 scr->mem[i].enc = scr->encoding; 488 } 489 490 vga_raster_setscreentype(vc, type); 491 492 /* Clear the entire screen. */ 493 vga_gdc_write(vh, mode, 0x02); 494 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 495 0x4000); 496 497 vga_restore_screen(scr, type, scr->mem); 498 } else { 499 cpos = 0; 500 scr->dispoffset = scr->mindispoffset; 501 scr->mem = NULL; 502 scr->active = 0; 503 } 504 505 scr->cursorrow = cpos / type->ncols; 506 scr->cursorcol = cpos % type->ncols; 507 vga_raster_cursor_init(scr, existing); 508 509 #ifdef __alpha__ 510 if (!vc->hdl.vh_mono) 511 /* 512 * DEC firmware uses a blue background. 513 */ 514 res = vga_raster_allocattr(scr, WSCOL_WHITE, WSCOL_BLUE, 515 WSATTR_WSCOLORS, attrp); 516 else 517 #endif 518 res = vga_raster_allocattr(scr, 0, 0, 0, attrp); 519 #ifdef DIAGNOSTIC 520 if (res) 521 panic("vga_raster_init_screen: attribute botch"); 522 #endif 523 524 vc->nscreens++; 525 LIST_INSERT_HEAD(&vc->screens, scr, next); 526 } 527 528 void 529 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, 530 bus_space_tag_t memt, int type, int quirks, 531 const struct vga_funcs *vf) 532 { 533 int console; 534 struct vga_config *vc; 535 struct wsemuldisplaydev_attach_args aa; 536 537 console = vga_is_console(iot, type); 538 539 if (console) { 540 vc = &vga_console_vc; 541 vga_console_attached = 1; 542 } else { 543 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK); 544 vga_raster_init(vc, iot, memt); 545 } 546 547 vc->vc_type = type; 548 vc->vc_funcs = vf; 549 550 sc->sc_vc = vc; 551 vc->softc = sc; 552 553 aa.console = console; 554 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); 555 aa.accessops = &vga_raster_accessops; 556 aa.accesscookie = vc; 557 558 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 559 } 560 561 int 562 vga_cndetach(void) 563 { 564 struct vga_config *vc; 565 struct vga_handle *vh; 566 567 vc = &vga_console_vc; 568 vh = &vc->hdl; 569 570 if (vgaconsole) { 571 bus_space_unmap(vh->vh_iot, vh->vh_ioh_vga, 0x10); 572 bus_space_unmap(vh->vh_iot, vh->vh_ioh_6845, 0x10); 573 574 return 1; 575 } 576 577 return 0; 578 } 579 580 int 581 vga_is_console(bus_space_tag_t iot, int type) 582 { 583 if (vgaconsole && 584 !vga_console_attached && 585 iot == vga_console_vc.hdl.vh_iot && 586 (vga_console_type == -1 || (type == vga_console_type))) 587 return (1); 588 return (0); 589 } 590 591 static int 592 vga_get_video(struct vga_config *vc) 593 { 594 595 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0; 596 } 597 598 static void 599 vga_set_video(struct vga_config *vc, int state) 600 { 601 int val; 602 603 vga_ts_write(&vc->hdl, syncreset, 0x01); 604 if (state) { /* unblank screen */ 605 val = vga_ts_read(&vc->hdl, mode); 606 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK); 607 #ifndef VGA_NO_VBLANK 608 val = vga_6845_read(&vc->hdl, mode); 609 vga_6845_write(&vc->hdl, mode, val | 0x80); 610 #endif 611 } else { /* blank screen */ 612 val = vga_ts_read(&vc->hdl, mode); 613 vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK); 614 #ifndef VGA_NO_VBLANK 615 val = vga_6845_read(&vc->hdl, mode); 616 vga_6845_write(&vc->hdl, mode, val & ~0x80); 617 #endif 618 } 619 vga_ts_write(&vc->hdl, syncreset, 0x03); 620 } 621 622 int 623 vga_raster_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 624 struct lwp *l) 625 { 626 struct vga_config *vc = v; 627 const struct vga_funcs *vf = vc->vc_funcs; 628 629 switch (cmd) { 630 case WSDISPLAYIO_GTYPE: 631 *(int *)data = vc->vc_type; 632 return 0; 633 634 case WSDISPLAYIO_GINFO: 635 /* XXX should get detailed hardware information here */ 636 return EPASSTHROUGH; 637 638 case WSDISPLAYIO_GVIDEO: 639 #if 1 640 *(int *)data = (vga_get_video(vc) ? 641 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); 642 return 0; 643 #endif 644 645 case WSDISPLAYIO_SVIDEO: 646 #if 1 647 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 648 return 0; 649 #endif 650 651 case WSDISPLAYIO_GETCMAP: 652 case WSDISPLAYIO_PUTCMAP: 653 case WSDISPLAYIO_GCURPOS: 654 case WSDISPLAYIO_SCURPOS: 655 case WSDISPLAYIO_GCURMAX: 656 case WSDISPLAYIO_GCURSOR: 657 case WSDISPLAYIO_SCURSOR: 658 /* NONE of these operations are by the generic VGA driver. */ 659 return EPASSTHROUGH; 660 } 661 662 if (vc->vc_funcs == NULL) 663 return (EPASSTHROUGH); 664 665 if (vf->vf_ioctl == NULL) 666 return (EPASSTHROUGH); 667 668 return ((*vf->vf_ioctl)(v, cmd, data, flag, l)); 669 } 670 671 static paddr_t 672 vga_raster_mmap(void *v, void *vs, off_t offset, int prot) 673 { 674 struct vga_config *vc = v; 675 const struct vga_funcs *vf = vc->vc_funcs; 676 677 if (vc->vc_funcs == NULL) 678 return (-1); 679 680 if (vf->vf_mmap == NULL) 681 return (-1); 682 683 return ((*vf->vf_mmap)(v, offset, prot)); 684 } 685 686 int 687 vga_raster_alloc_screen(void *v, const struct wsscreen_descr *type, 688 void **cookiep, int *curxp, int *curyp, long *defattrp) 689 { 690 struct vga_config *vc = v; 691 struct vgascreen *scr; 692 693 if (vc->nscreens == 1) { 694 vc->screens.lh_first->mem = boot_scrmem; 695 } 696 697 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 698 vga_raster_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 699 700 if (vc->nscreens == 1) { 701 scr->active = 1; 702 vc->active = scr; 703 vc->currenttype = type; 704 } else { 705 scr->mem = malloc(sizeof(struct vga_scrmem) * 706 type->ncols * type->nrows, M_DEVBUF, M_WAITOK); 707 vga_raster_eraserows(scr, 0, type->nrows, *defattrp); 708 } 709 710 *cookiep = scr; 711 *curxp = scr->cursorcol; 712 *curyp = scr->cursorrow; 713 714 return (0); 715 } 716 717 void 718 vga_raster_free_screen(void *v, void *cookie) 719 { 720 struct vgascreen *vs = cookie; 721 struct vga_config *vc = vs->cfg; 722 723 LIST_REMOVE(vs, next); 724 vc->nscreens--; 725 if (vs != &vga_console_screen) 726 free(vs, M_DEVBUF); 727 else 728 panic("vga_raster_free_screen: console"); 729 730 if (vc->active == vs) 731 vc->active = 0; 732 } 733 734 int 735 vga_raster_show_screen(void *v, void *cookie, int waitok, 736 void (*cb)(void *, int, int), void *cbarg) 737 { 738 struct vgascreen *scr = cookie, *oldscr; 739 struct vga_config *vc = scr->cfg; 740 741 oldscr = vc->active; /* can be NULL! */ 742 if (scr == oldscr) { 743 return (0); 744 } 745 746 vc->wantedscreen = cookie; 747 vc->switchcb = cb; 748 vc->switchcbarg = cbarg; 749 if (cb) { 750 callout_reset(&vc->vc_switch_callout, 0, 751 (void(*)(void *))vga_switch_screen, vc); 752 return (EAGAIN); 753 } 754 755 vga_switch_screen(vc); 756 return (0); 757 } 758 759 void 760 vga_switch_screen(struct vga_config *vc) 761 { 762 struct vgascreen *scr, *oldscr; 763 struct vga_handle *vh = &vc->hdl; 764 const struct wsscreen_descr *type; 765 766 scr = vc->wantedscreen; 767 if (!scr) { 768 printf("vga_switch_screen: disappeared\n"); 769 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 770 return; 771 } 772 type = scr->type; 773 oldscr = vc->active; /* can be NULL! */ 774 #ifdef DIAGNOSTIC 775 if (oldscr) { 776 if (!oldscr->active) 777 panic("vga_raster_show_screen: not active"); 778 if (oldscr->type != vc->currenttype) 779 panic("vga_raster_show_screen: bad type"); 780 } 781 #endif 782 if (scr == oldscr) { 783 return; 784 } 785 #ifdef DIAGNOSTIC 786 if (scr->active) 787 panic("vga_raster_show_screen: active"); 788 #endif 789 790 if (oldscr) 791 oldscr->active = 0; 792 793 if (vc->currenttype != type) { 794 vga_raster_setscreentype(vc, type); 795 vc->currenttype = type; 796 } 797 798 scr->dispoffset = scr->mindispoffset; 799 800 if (!oldscr || (scr->dispoffset != oldscr->dispoffset)) { 801 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 802 vga_6845_write(vh, startadrl, scr->dispoffset); 803 } 804 805 /* Clear the entire screen. */ 806 vga_gdc_write(vh, mode, 0x02); 807 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x2000); 808 809 scr->active = 1; 810 vga_restore_screen(scr, type, scr->mem); 811 812 vc->active = scr; 813 814 vga_raster_cursor(scr, scr->cursoron, scr->cursorrow, scr->cursorcol); 815 816 vc->wantedscreen = 0; 817 if (vc->switchcb) 818 (*vc->switchcb)(vc->switchcbarg, 0, 0); 819 } 820 821 static int 822 vga_raster_load_font(void *v, void *id, 823 struct wsdisplay_font *data) 824 { 825 /* XXX */ 826 printf("vga_raster_load_font: called\n"); 827 828 return (0); 829 } 830 831 void 832 vga_raster_setup_font(struct vga_config *vc, struct vgascreen *scr) 833 { 834 struct vga_raster_font *vf; 835 struct wsdisplay_font *wf; 836 int cookie; 837 838 LIST_FOREACH(vf, &vc->vc_fontlist, next) { 839 if (wsfont_matches(vf->font, 0, 0, scr->type->fontheight, 0)) { 840 scr->encoding = vf->font->encoding; 841 LIST_INSERT_HEAD(&scr->fontset, vf, next); 842 return; 843 } 844 } 845 846 cookie = wsfont_find(NULL, 0, scr->type->fontheight, 0, 847 WSDISPLAY_FONTORDER_L2R, 0); 848 if (cookie == -1) 849 return; 850 851 if (wsfont_lock(cookie, &wf)) 852 return; 853 854 vf = malloc(sizeof(struct vga_raster_font), M_DEVBUF, M_NOWAIT); 855 if (!vf) { 856 wsfont_unlock(cookie); 857 return; 858 } 859 860 vf->font = wf; 861 scr->encoding = vf->font->encoding; 862 LIST_INSERT_HEAD(&scr->fontset, vf, next); 863 } 864 865 void 866 vga_setup_regs(struct videomode *mode, struct vga_moderegs *regs) 867 { 868 int i; 869 int depth = 4; /* XXXBJY hardcoded for now */ 870 const u_int8_t palette[] = { 871 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 872 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f 873 }; 874 875 /* 876 * Compute hsync and vsync polarity. 877 */ 878 if ((mode->flags & (VID_PHSYNC | VID_NHSYNC)) 879 && (mode->flags & (VID_PVSYNC | VID_NVSYNC))) { 880 regs->miscout = 0x23; 881 if (mode->flags & VID_NHSYNC) 882 regs->miscout |= 0x40; 883 if (mode->flags & VID_NVSYNC) 884 regs->miscout |= 0x80; 885 } else { 886 if (mode->flags & VID_DBLSCAN) 887 mode->vdisplay *= 2; 888 if (mode->vdisplay < 400) 889 regs->miscout = 0xa3; 890 else if (mode->vdisplay < 480) 891 regs->miscout = 0x63; 892 else if (mode->vdisplay < 768) 893 regs->miscout = 0xe3; 894 else 895 regs->miscout = 0x23; 896 } 897 898 /* 899 * Time sequencer 900 */ 901 if (depth == 4) 902 regs->ts[0] = 0x02; 903 else 904 regs->ts[0] = 0x00; 905 if (mode->flags & VID_CLKDIV2) 906 regs->ts[1] = 0x09; 907 else 908 regs->ts[1] = 0x01; 909 regs->ts[2] = 0x0f; 910 regs->ts[3] = 0x00; 911 if (depth < 8) 912 regs->ts[4] = 0x06; 913 else 914 regs->ts[4] = 0x0e; 915 916 /* 917 * CRTC controller 918 */ 919 regs->crtc[0] = (mode->htotal >> 3) - 5; 920 regs->crtc[1] = (mode->hdisplay >> 3) - 1; 921 regs->crtc[2] = (mode->hsync_start >> 3) - 1; 922 regs->crtc[3] = (((mode->hsync_end >> 3) - 1) & 0x1f) | 0x80; 923 regs->crtc[4] = mode->hsync_start >> 3; 924 regs->crtc[5] = ((((mode->hsync_end >> 3) - 1) & 0x20) << 2) 925 | (((mode->hsync_end >> 3)) & 0x1f); 926 regs->crtc[6] = (mode->vtotal - 2) & 0xff; 927 regs->crtc[7] = (((mode->vtotal - 2) & 0x100) >> 8) 928 | (((mode->vdisplay - 1) & 0x100) >> 7) 929 | ((mode->vsync_start & 0x100) >> 6) 930 | (((mode->vsync_start - 1) & 0x100) >> 5) 931 | 0x10 932 | (((mode->vtotal - 2) & 0x200) >> 4) 933 | (((mode->vdisplay - 1) & 0x200) >> 3) 934 | ((mode->vsync_start & 0x200) >> 2); 935 regs->crtc[8] = 0x00; 936 regs->crtc[9] = (((mode->vsync_start - 1) & 0x200) >> 4) | 0x40; 937 if (mode->flags & VID_DBLSCAN) 938 regs->crtc[9] |= 0x80; 939 regs->crtc[10] = 0x00; 940 regs->crtc[11] = 0x00; 941 regs->crtc[12] = 0x00; 942 regs->crtc[13] = 0x00; 943 regs->crtc[14] = 0x00; 944 regs->crtc[15] = 0x00; 945 regs->crtc[16] = mode->vsync_start & 0xff; 946 regs->crtc[17] = (mode->vsync_end & 0x0f) | 0x20; 947 regs->crtc[18] = (mode->vdisplay - 1) & 0xff; 948 regs->crtc[19] = mode->hdisplay >> 4; /* XXXBJY */ 949 regs->crtc[20] = 0x00; 950 regs->crtc[21] = (mode->vsync_start - 1) & 0xff; 951 regs->crtc[22] = (mode->vsync_end - 1) & 0xff; 952 if (depth < 8) 953 regs->crtc[23] = 0xe3; 954 else 955 regs->crtc[23] = 0xc3; 956 regs->crtc[24] = 0xff; 957 958 /* 959 * Graphics display controller 960 */ 961 regs->gdc[0] = 0x00; 962 regs->gdc[1] = 0x00; 963 regs->gdc[2] = 0x00; 964 regs->gdc[3] = 0x00; 965 regs->gdc[4] = 0x00; 966 if (depth == 4) 967 regs->gdc[5] = 0x02; 968 else 969 regs->gdc[5] = 0x40; 970 regs->gdc[6] = 0x01; 971 regs->gdc[7] = 0x0f; 972 regs->gdc[8] = 0xff; 973 974 /* 975 * Attribute controller 976 */ 977 /* Set palette registers. */ 978 for (i = 0; i < 16; i++) 979 regs->atc[i] = palette[i]; 980 if (depth == 4) 981 regs->atc[16] = 0x01; /* XXXBJY was 0x81 in XFree86 */ 982 else 983 regs->atc[16] = 0x41; 984 regs->atc[17] = 0x00; /* XXXBJY just a guess */ 985 regs->atc[18] = 0x0f; 986 regs->atc[19] = 0x00; 987 regs->atc[20] = 0x00; 988 } 989 990 void 991 vga_set_mode(struct vga_handle *vh, struct vga_moderegs *regs) 992 { 993 int i; 994 995 /* Disable display. */ 996 vga_ts_write(vh, mode, vga_ts_read(vh, mode) | VGA_TS_MODE_BLANK); 997 998 /* Write misc output register. */ 999 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAW, 1000 regs->miscout); 1001 1002 /* Set synchronous reset. */ 1003 vga_ts_write(vh, syncreset, 0x01); 1004 vga_ts_write(vh, mode, regs->ts[1] | VGA_TS_MODE_BLANK); 1005 for (i = 2; i < VGA_TS_NREGS; i++) 1006 _vga_ts_write(vh, i, regs->ts[i]); 1007 /* Clear synchronous reset. */ 1008 vga_ts_write(vh, syncreset, 0x03); 1009 1010 /* Unprotect CRTC registers 0-7. */ 1011 vga_6845_write(vh, vsynce, vga_6845_read(vh, vsynce) & ~0x80); 1012 /* Write CRTC registers. */ 1013 for (i = 0; i < MC6845_NREGS; i++) 1014 _vga_6845_write(vh, i, regs->crtc[i]); 1015 1016 /* Write graphics display registers. */ 1017 for (i = 0; i < VGA_GDC_NREGS; i++) 1018 _vga_gdc_write(vh, i, regs->gdc[i]); 1019 1020 /* Write attribute controller registers. */ 1021 for (i = 0; i < VGA_ATC_NREGS; i++) 1022 _vga_attr_write(vh, i, regs->atc[i]); 1023 1024 /* Enable display. */ 1025 vga_ts_write(vh, mode, vga_ts_read(vh, mode) & ~VGA_TS_MODE_BLANK); 1026 } 1027 1028 void 1029 vga_raster_cursor_init(struct vgascreen *scr, int existing) 1030 { 1031 struct vga_handle *vh = scr->hdl; 1032 bus_space_tag_t memt; 1033 bus_space_handle_t memh; 1034 int off; 1035 1036 if (existing) { 1037 /* 1038 * This is the first screen. At this point, scr->active is 1039 * false, so we can't use vga_raster_cursor() to do this. 1040 */ 1041 memt = vh->vh_memt; 1042 memh = vh->vh_memh; 1043 off = (scr->cursorrow * scr->type->ncols + scr->cursorcol) + 1044 scr->dispoffset / 8; 1045 1046 scr->cursortmp = scr->mem[off]; 1047 vga_raster_putchar(scr, scr->cursorrow, scr->cursorcol, 1048 scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); 1049 } else { 1050 scr->cursortmp.ch = 0; 1051 scr->cursortmp.attr = 0; 1052 scr->cursortmp.second = 0; 1053 scr->cursortmp.enc = scr->encoding; 1054 } 1055 1056 scr->cursoron = 1; 1057 } 1058 1059 void 1060 vga_raster_cursor(void *id, int on, int row, int col) 1061 { 1062 struct vgascreen *scr = id; 1063 int off, tmp; 1064 1065 /* Remove old cursor image */ 1066 if (scr->cursoron) { 1067 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 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); 1075 else 1076 vga_raster_putchar(id, scr->cursorrow, 1077 scr->cursorcol, scr->cursortmp.ch, 1078 scr->cursortmp.attr); 1079 scr->encoding = tmp; 1080 } 1081 } 1082 1083 scr->cursorrow = row; 1084 scr->cursorcol = col; 1085 1086 if ((scr->cursoron = on) == 0) 1087 return; 1088 1089 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1090 scr->cursortmp = scr->mem[off]; 1091 if (scr->active) { 1092 tmp = scr->encoding; 1093 scr->encoding = scr->cursortmp.enc; 1094 if (scr->cursortmp.second) 1095 vga_raster_putchar(id, scr->cursorrow, 1096 scr->cursorcol - 1, scr->cursortmp.ch, 1097 scr->cursortmp.attr ^ 0x77); 1098 else 1099 vga_raster_putchar(id, scr->cursorrow, 1100 scr->cursorcol, scr->cursortmp.ch, 1101 scr->cursortmp.attr ^ 0x77); 1102 scr->encoding = tmp; 1103 } 1104 } 1105 1106 static int 1107 vga_raster_mapchar(void *id, int uni, u_int *index) 1108 { 1109 struct vgascreen *scr = id; 1110 1111 if (scr->encoding == WSDISPLAY_FONTENC_IBM) 1112 return pcdisplay_mapchar(id, uni, index); 1113 else { 1114 *index = uni; 1115 return 5; 1116 } 1117 } 1118 1119 void 1120 vga_raster_putchar(void *id, int row, int col, u_int c, long attr) 1121 { 1122 struct vgascreen *scr = id; 1123 size_t off; 1124 struct vga_raster_font *fs; 1125 u_int tmp_ch; 1126 1127 off = row * scr->type->ncols + col; 1128 1129 if (__predict_false(off >= (scr->type->ncols * scr->type->nrows))) 1130 return; 1131 1132 LIST_FOREACH(fs, &scr->fontset, next) { 1133 if ((scr->encoding == fs->font->encoding) && 1134 (c >= fs->font->firstchar) && 1135 (c < fs->font->firstchar + fs->font->numchars) && 1136 (scr->type->fontheight == fs->font->fontheight)) { 1137 if (scr->active) { 1138 tmp_ch = c - fs->font->firstchar; 1139 _vga_raster_putchar(scr, row, col, tmp_ch, 1140 attr, fs); 1141 } 1142 1143 scr->mem[off].ch = c; 1144 scr->mem[off].attr = attr; 1145 scr->mem[off].second = 0; 1146 scr->mem[off].enc = fs->font->encoding; 1147 1148 if (fs->font->stride == 2) { 1149 scr->mem[off + 1].ch = c; 1150 scr->mem[off + 1].attr = attr; 1151 scr->mem[off + 1].second = 1; 1152 scr->mem[off + 1].enc = fs->font->encoding; 1153 } 1154 1155 return; 1156 } 1157 } 1158 1159 /* 1160 * No match found. 1161 */ 1162 if (scr->active) 1163 /* 1164 * Put a single width space character no matter what the 1165 * actual width of the character is. 1166 */ 1167 _vga_raster_putchar(scr, row, col, ' ', attr, 1168 &vga_console_fontset_ascii); 1169 scr->mem[off].ch = c; 1170 scr->mem[off].attr = attr; 1171 scr->mem[off].second = 0; 1172 scr->mem[off].enc = scr->encoding; 1173 } 1174 1175 static void 1176 _vga_raster_putchar(void *id, int row, int col, u_int c, long attr, 1177 struct vga_raster_font *fs) 1178 { 1179 struct vgascreen *scr = id; 1180 struct vga_handle *vh = scr->hdl; 1181 bus_space_tag_t memt = vh->vh_memt; 1182 bus_space_handle_t memh = vh->vh_memh; 1183 int i; 1184 int rasoff, rasoff2; 1185 int fheight = scr->type->fontheight; 1186 volatile u_int8_t dummy, pattern; 1187 u_int8_t fgcolor, bgcolor; 1188 1189 rasoff = scr->dispoffset + row * scr->type->ncols * fheight + col; 1190 rasoff2 = rasoff; 1191 1192 #if 0 1193 bgcolor = bgansitopc[attr >> 4]; 1194 fgcolor = fgansitopc[attr & 0x0f]; 1195 #else 1196 bgcolor = ((attr >> 4) & 0x0f); 1197 fgcolor = attr & 0x0f; 1198 #endif 1199 1200 if (fs->font->stride == 1) { 1201 /* Paint background. */ 1202 vga_gdc_write(vh, mode, 0x02); 1203 for (i = 0; i < fheight; i++) { 1204 bus_space_write_1(memt, memh, rasoff, bgcolor); 1205 rasoff += scr->type->ncols; 1206 } 1207 1208 /* Draw a single width character. */ 1209 vga_gdc_write(vh, mode, 0x03); 1210 vga_gdc_write(vh, setres, fgcolor); 1211 for (i = 0; i < fheight; i++) { 1212 pattern = ((u_int8_t *)fs->font->data)[c * fheight + i]; 1213 /* When pattern is 0, skip output for speed-up. */ 1214 if (pattern != 0) { 1215 dummy = bus_space_read_1(memt, memh, rasoff2); 1216 bus_space_write_1(memt, memh, rasoff2, pattern); 1217 } 1218 rasoff2 += scr->type->ncols; 1219 } 1220 } else if (fs->font->stride == 2) { 1221 /* Paint background. */ 1222 vga_gdc_write(vh, mode, 0x02); 1223 for (i = 0; i < fheight; i++) { 1224 bus_space_write_1(memt, memh, rasoff, bgcolor); 1225 bus_space_write_1(memt, memh, rasoff + 1, bgcolor); 1226 rasoff += scr->type->ncols; 1227 } 1228 1229 /* Draw a double width character. */ 1230 vga_gdc_write(vh, mode, 0x03); 1231 vga_gdc_write(vh, setres, fgcolor); 1232 for (i = 0; i < fheight; i++) { 1233 pattern = ((u_int8_t *)fs->font->data) 1234 [(c * fheight + i) * 2]; 1235 if (pattern != 0) { 1236 dummy = bus_space_read_1(memt, memh, rasoff2); 1237 bus_space_write_1(memt, memh, rasoff2, pattern); 1238 } 1239 pattern = ((u_int8_t *)fs->font->data) 1240 [(c * fheight + i) * 2 + 1]; 1241 if (pattern != 0) { 1242 rasoff2++; 1243 dummy = bus_space_read_1(memt, memh, rasoff2); 1244 bus_space_write_1(memt, memh, rasoff2, pattern); 1245 rasoff2--; 1246 } 1247 rasoff2 += scr->type->ncols; 1248 } 1249 } 1250 } 1251 1252 void 1253 vga_raster_copycols(void *id, int row, int srccol, int dstcol, int ncols) 1254 { 1255 struct vgascreen *scr = id; 1256 struct vga_handle *vh = scr->hdl; 1257 bus_space_tag_t memt = vh->vh_memt; 1258 bus_space_handle_t memh = vh->vh_memh; 1259 bus_size_t srcoff, dstoff; 1260 bus_size_t rassrcoff, rasdstoff; 1261 int i; 1262 int fheight = scr->type->fontheight; 1263 1264 srcoff = row * scr->type->ncols + srccol; 1265 dstoff = row * scr->type->ncols + dstcol; 1266 rassrcoff = scr->dispoffset + row * scr->type->ncols * fheight + srccol; 1267 rasdstoff = scr->dispoffset + row * scr->type->ncols * fheight + dstcol; 1268 1269 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1270 ncols * sizeof(struct vga_scrmem)); 1271 1272 vga_gdc_write(vh, mode, 0x01); 1273 if (scr->active) { 1274 for (i = 0; i < fheight; i++) { 1275 bus_space_copy_region_1(memt, memh, 1276 rassrcoff + i * scr->type->ncols, memh, 1277 rasdstoff + i * scr->type->ncols, ncols); 1278 } 1279 } 1280 } 1281 1282 void 1283 vga_raster_erasecols(void *id, int row, int startcol, int ncols, long fillattr) 1284 { 1285 struct vgascreen *scr = id; 1286 int i; 1287 1288 if (scr->active == 0) 1289 return; 1290 1291 for (i = startcol; i < startcol + ncols; i++) 1292 vga_raster_putchar(id, row, i, ' ', fillattr); 1293 } 1294 1295 void 1296 vga_raster_copyrows(void *id, int srcrow, int dstrow, int nrows) 1297 { 1298 struct vgascreen *scr = id; 1299 struct vga_handle *vh = scr->hdl; 1300 bus_space_tag_t memt = vh->vh_memt; 1301 bus_space_handle_t memh = vh->vh_memh; 1302 int ncols; 1303 bus_size_t srcoff, dstoff; 1304 bus_size_t rassrcoff, rasdstoff; 1305 int fheight; 1306 1307 ncols = scr->type->ncols; 1308 fheight = scr->type->fontheight; 1309 1310 srcoff = srcrow * ncols; 1311 dstoff = dstrow * ncols; 1312 rassrcoff = srcoff * fheight; 1313 rasdstoff = dstoff * fheight; 1314 1315 if (scr->active) { 1316 vga_gdc_write(vh, mode, 0x01); 1317 if (dstrow == 0 && (srcrow + nrows == scr->type->nrows)) { 1318 int cursoron = scr->cursoron; 1319 1320 if (cursoron) 1321 /* Disable cursor. */ 1322 vga_raster_cursor(scr, 0, 1323 scr->cursorrow, scr->cursorcol); 1324 1325 /* scroll up whole screen */ 1326 if ((scr->dispoffset + srcrow * ncols * fheight) 1327 <= scr->maxdispoffset) 1328 scr->dispoffset += srcrow * ncols * fheight; 1329 else { 1330 bus_space_copy_region_1(memt, memh, 1331 scr->dispoffset + rassrcoff, 1332 memh, scr->mindispoffset, 1333 nrows * ncols * fheight); 1334 scr->dispoffset = scr->mindispoffset; 1335 } 1336 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 1337 vga_6845_write(vh, startadrl, scr->dispoffset); 1338 1339 if (cursoron) 1340 /* Enable cursor. */ 1341 vga_raster_cursor(scr, 1, scr->cursorrow, 1342 scr->cursorcol); 1343 } else 1344 bus_space_copy_region_1(memt, memh, 1345 scr->dispoffset + rassrcoff, memh, 1346 scr->dispoffset + rasdstoff, 1347 nrows * ncols * fheight); 1348 } 1349 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1350 nrows * ncols * sizeof(struct vga_scrmem)); 1351 } 1352 1353 void 1354 vga_raster_eraserows(void *id, int startrow, int nrows, long fillattr) 1355 { 1356 struct vgascreen *scr = id; 1357 struct vga_handle *vh = scr->hdl; 1358 bus_space_tag_t memt = vh->vh_memt; 1359 bus_space_handle_t memh = vh->vh_memh; 1360 bus_size_t off, count; 1361 bus_size_t rasoff, rascount; 1362 int i; 1363 1364 off = startrow * scr->type->ncols; 1365 count = nrows * scr->type->ncols; 1366 rasoff = off * scr->type->fontheight; 1367 rascount = count * scr->type->fontheight; 1368 1369 if (scr->active) { 1370 u_int8_t bgcolor = (fillattr >> 4) & 0x0F; 1371 1372 /* Paint background. */ 1373 vga_gdc_write(vh, mode, 0x02); 1374 if (scr->type->ncols % 4 == 0) { 1375 u_int32_t fill = bgcolor | (bgcolor << 8) | 1376 (bgcolor << 16) | (bgcolor << 24); 1377 /* We can speed up I/O */ 1378 for (i = rasoff; i < rasoff + rascount; i += 4) 1379 bus_space_write_4(memt, memh, 1380 scr->dispoffset + i, fill); 1381 } else { 1382 u_int16_t fill = bgcolor | (bgcolor << 8); 1383 for (i = rasoff; i < rasoff + rascount; i += 2) 1384 bus_space_write_2(memt, memh, 1385 scr->dispoffset + i, fill); 1386 } 1387 } 1388 for (i = 0; i < count; i++) { 1389 scr->mem[off + i].ch = ' '; 1390 scr->mem[off + i].attr = fillattr; 1391 scr->mem[off + i].second = 0; 1392 scr->mem[off + i].enc = scr->encoding; 1393 } 1394 } 1395 1396 static int 1397 vga_raster_allocattr(void *id, int fg, int bg, int flags, long *attrp) 1398 { 1399 struct vgascreen *scr = id; 1400 struct vga_config *vc = scr->cfg; 1401 1402 if (__predict_false((unsigned int)fg >= sizeof(fgansitopc) || 1403 (unsigned int)bg >= sizeof(bgansitopc))) 1404 return (EINVAL); 1405 1406 if (vc->hdl.vh_mono) { 1407 if (flags & WSATTR_WSCOLORS) 1408 return (EINVAL); 1409 if (flags & WSATTR_REVERSE) 1410 *attrp = 0x70; 1411 else 1412 *attrp = 0x07; 1413 if (flags & WSATTR_UNDERLINE) 1414 *attrp |= FG_UNDERLINE; 1415 if (flags & WSATTR_HILIT) 1416 *attrp |= FG_INTENSE; 1417 } else { 1418 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1419 return (EINVAL); 1420 if (flags & WSATTR_WSCOLORS) 1421 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1422 else 1423 *attrp = 7; 1424 if (flags & WSATTR_HILIT) 1425 *attrp += 8; 1426 } 1427 if (flags & WSATTR_BLINK) 1428 *attrp |= FG_BLINK; 1429 return (0); 1430 } 1431 1432 void 1433 vga_restore_screen(struct vgascreen *scr, 1434 const struct wsscreen_descr *type, struct vga_scrmem *mem) 1435 { 1436 int i, j, off, tmp; 1437 1438 tmp = scr->encoding; 1439 for (i = 0; i < type->nrows; i++) { 1440 for (j = 0; j < type->ncols; j++) { 1441 off = i * type->ncols + j; 1442 if (mem[off].second != 1) { 1443 scr->encoding = mem[off].enc; 1444 vga_raster_putchar(scr, i, j, mem[off].ch, 1445 mem[off].attr); 1446 } 1447 } 1448 } 1449 scr->encoding = tmp; 1450 } 1451 1452 void 1453 vga_raster_setscreentype(struct vga_config *vc, 1454 const struct wsscreen_descr *type) 1455 { 1456 struct vga_handle *vh = &vc->hdl; 1457 struct vga_moderegs moderegs; 1458 1459 vga_setup_regs((struct videomode *)type->modecookie, &moderegs); 1460 vga_set_mode(vh, &moderegs); 1461 } 1462 1463 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1464 void 1465 vga_raster_replaceattr(void *id, long oldattr, long newattr) 1466 { 1467 struct vgascreen *scr = id; 1468 const struct wsscreen_descr *type = scr->type; 1469 int off; 1470 1471 for (off = 0; off < type->nrows * type->ncols; off++) { 1472 if (scr->mem[off].attr == oldattr) 1473 scr->mem[off].attr = newattr; 1474 } 1475 1476 /* Repaint the whole screen, if needed */ 1477 if (scr->active) 1478 vga_restore_screen(scr, type, scr->mem); 1479 } 1480 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 1481 1482 void 1483 vga_resume(struct vga_softc *sc) 1484 { 1485 #ifdef VGA_RESET_ON_RESUME 1486 vga_initregs(&sc->sc_vc->hdl); 1487 #endif 1488 } 1489
Indexes created Thu Sep 25 02:09:54 GMT 2025