1 /* $NetBSD: vga_raster.c,v 1.40 2014/04/18 22:02:44 mlelstv 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 1.40 2014/04/18 22:02:44 mlelstv Exp $"); 60 61 #include "opt_vga.h" 62 #include "opt_wsmsgattrs.h" /* for WSDISPLAY_CUSTOM_OUTPUT */ 63 64 #include <sys/param.h> 65 #include <sys/systm.h> 66 #include <sys/callout.h> 67 #include <sys/kernel.h> 68 #include <sys/device.h> 69 #include <sys/malloc.h> 70 #include <sys/queue.h> 71 #include <sys/bus.h> 72 73 #include <dev/ic/mc6845reg.h> 74 #include <dev/ic/pcdisplayvar.h> 75 #include <dev/ic/vgareg.h> 76 #include <dev/ic/vgavar.h> 77 #include <dev/videomode/videomode.h> 78 79 #include <dev/wscons/wsdisplayvar.h> 80 #include <dev/wscons/wsconsio.h> 81 #include <dev/wsfont/wsfont.h> 82 83 #include <dev/ic/pcdisplay.h> 84 85 int vga_no_builtinfont = 0; 86 87 u_int8_t builtinfont_data[256 * 16]; 88 89 struct wsdisplay_font builtinfont = { 90 "builtin", /* typeface name */ 91 0, /* firstchar */ 92 256, /* numchars */ 93 WSDISPLAY_FONTENC_IBM, /* encoding */ 94 8, /* width */ 95 16, /* height */ 96 1, /* stride */ 97 WSDISPLAY_FONTORDER_L2R, /* bit order */ 98 WSDISPLAY_FONTORDER_L2R, /* byte order */ 99 builtinfont_data /* data */ 100 }; 101 102 struct vga_scrmem { 103 u_int16_t ch; 104 u_int8_t attr; 105 u_int8_t second; /* XXXBJY should be u_int8_t len; */ 106 u_int8_t enc; 107 }; 108 109 #ifdef VGA_CONSOLE_SCREENTYPE 110 #define VGA_SCRMEM_SIZE (80 * 30) 111 #else 112 #define VGA_SCRMEM_SIZE (80 * 25) 113 #endif 114 115 struct vga_scrmem boot_scrmem[VGA_SCRMEM_SIZE]; 116 117 struct vga_raster_font { 118 LIST_ENTRY(vga_raster_font) next; 119 struct wsdisplay_font *font; 120 }; 121 122 struct vgascreen { 123 LIST_ENTRY(vgascreen) next; 124 struct vga_config *cfg; 125 struct vga_handle *hdl; 126 const struct wsscreen_descr *type; 127 128 int active; 129 struct vga_scrmem *mem; 130 int encoding; 131 132 int dispoffset; 133 int mindispoffset; 134 int maxdispoffset; 135 136 int cursoron; /* Is cursor displayed? */ 137 int cursorcol; /* Current cursor column */ 138 int cursorrow; /* Current cursor row */ 139 struct vga_scrmem cursortmp; 140 int cursorstride; 141 142 LIST_HEAD(, vga_raster_font) fontset; 143 }; 144 145 struct vga_moderegs { 146 u_int8_t miscout; /* Misc. output */ 147 u_int8_t crtc[MC6845_NREGS]; /* CRTC controller */ 148 u_int8_t atc[VGA_ATC_NREGS]; /* Attribute controller */ 149 u_int8_t ts[VGA_TS_NREGS]; /* Time sequencer */ 150 u_int8_t gdc[VGA_GDC_NREGS]; /* Graphics display controller */ 151 }; 152 153 static int vgaconsole, vga_console_type, vga_console_attached; 154 static struct vgascreen vga_console_screen; 155 static struct vga_config vga_console_vc; 156 static struct vga_raster_font vga_console_fontset_ascii; 157 static struct videomode vga_console_modes[2] = { 158 /* 640x400 for 80x25, 80x40 and 80x50 modes */ 159 { 160 25175, 640, 664, 760, 800, 400, 409, 411, 450, 0, NULL, 161 }, 162 /* 640x480 for 80x30 mode */ 163 { 164 25175, 640, 664, 760, 800, 480, 491, 493, 525, 0, NULL, 165 } 166 }; 167 168 static void vga_raster_init(struct vga_config *, bus_space_tag_t, 169 bus_space_tag_t); 170 static void vga_raster_init_screen(struct vga_config *, struct vgascreen *, 171 const struct wsscreen_descr *, int, long *); 172 static void vga_raster_setup_font(struct vga_config *, struct vgascreen *); 173 static void vga_setup_regs(struct videomode *, struct vga_moderegs *); 174 static void vga_set_mode(struct vga_handle *, struct vga_moderegs *); 175 static void vga_restore_screen(struct vgascreen *, 176 const struct wsscreen_descr *, struct vga_scrmem *); 177 static void vga_raster_cursor_init(struct vgascreen *, int); 178 static void _vga_raster_putchar(void *, int, int, u_int, long, 179 struct vga_raster_font *); 180 181 static void vga_raster_cursor(void *, int, int, int); 182 static int vga_raster_mapchar(void *, int, u_int *); 183 static void vga_raster_putchar(void *, int, int, u_int, long); 184 static void vga_raster_copycols(void *, int, int, int, int); 185 static void vga_raster_erasecols(void *, int, int, int, long); 186 static void vga_raster_copyrows(void *, int, int, int); 187 static void vga_raster_eraserows(void *, int, int, long); 188 static int vga_raster_allocattr(void *, int, int, int, long *); 189 #ifdef WSDISPLAY_CUSTOM_OUTPUT 190 static void vga_raster_replaceattr(void *, long, long); 191 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 192 193 const struct wsdisplay_emulops vga_raster_emulops = { 194 vga_raster_cursor, 195 vga_raster_mapchar, 196 vga_raster_putchar, 197 vga_raster_copycols, 198 vga_raster_erasecols, 199 vga_raster_copyrows, 200 vga_raster_eraserows, 201 vga_raster_allocattr, 202 #ifdef WSDISPLAY_CUSTOM_OUTPUT 203 vga_raster_replaceattr, 204 #else /* WSDISPLAY_CUSTOM_OUTPUT */ 205 NULL, 206 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 207 }; 208 209 /* 210 * translate WS(=ANSI) color codes to standard pc ones 211 */ 212 static const unsigned char fgansitopc[] = { 213 #ifdef __alpha__ 214 /* 215 * XXX DEC HAS SWITCHED THE CODES FOR BLUE AND RED!!! 216 * XXX We should probably not bother with this 217 * XXX (reinitialize the palette registers). 218 */ 219 FG_BLACK, FG_BLUE, FG_GREEN, FG_CYAN, FG_RED, 220 FG_MAGENTA, FG_BROWN, FG_LIGHTGREY 221 #else 222 FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE, 223 FG_MAGENTA, FG_CYAN, FG_LIGHTGREY 224 #endif 225 }, bgansitopc[] = { 226 #ifdef __alpha__ 227 BG_BLACK, BG_BLUE, BG_GREEN, BG_CYAN, BG_RED, 228 BG_MAGENTA, BG_BROWN, BG_LIGHTGREY 229 #else 230 BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE, 231 BG_MAGENTA, BG_CYAN, BG_LIGHTGREY 232 #endif 233 }; 234 235 const struct wsscreen_descr vga_25lscreen = { 236 "80x25", 80, 25, 237 &vga_raster_emulops, 238 8, 16, 239 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 240 &vga_console_modes[0] 241 }, vga_25lscreen_mono = { 242 "80x25", 80, 25, 243 &vga_raster_emulops, 244 8, 16, 245 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 246 &vga_console_modes[0] 247 }, vga_30lscreen = { 248 "80x30", 80, 30, 249 &vga_raster_emulops, 250 8, 16, 251 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 252 &vga_console_modes[1] 253 }, vga_30lscreen_mono = { 254 "80x30", 80, 30, 255 &vga_raster_emulops, 256 8, 16, 257 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 258 &vga_console_modes[1] 259 }, vga_40lscreen = { 260 "80x40", 80, 40, 261 &vga_raster_emulops, 262 8, 10, 263 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 264 &vga_console_modes[0] 265 }, vga_40lscreen_mono = { 266 "80x40", 80, 40, 267 &vga_raster_emulops, 268 8, 10, 269 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 270 &vga_console_modes[0] 271 }, vga_50lscreen = { 272 "80x50", 80, 50, 273 &vga_raster_emulops, 274 8, 8, 275 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 276 &vga_console_modes[0] 277 }, vga_50lscreen_mono = { 278 "80x50", 80, 50, 279 &vga_raster_emulops, 280 8, 8, 281 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 282 &vga_console_modes[0] 283 }; 284 285 const struct wsscreen_descr *_vga_scrlist[] = { 286 &vga_25lscreen, 287 &vga_30lscreen, 288 &vga_40lscreen, 289 &vga_50lscreen, 290 }, *_vga_scrlist_mono[] = { 291 &vga_25lscreen_mono, 292 &vga_30lscreen_mono, 293 &vga_40lscreen_mono, 294 &vga_50lscreen_mono, 295 }; 296 297 const struct wsscreen_list vga_screenlist = { 298 sizeof(_vga_scrlist) / sizeof(struct wsscreen_descr *), 299 _vga_scrlist 300 }, vga_screenlist_mono = { 301 sizeof(_vga_scrlist_mono) / sizeof(struct wsscreen_descr *), 302 _vga_scrlist_mono 303 }; 304 305 static int vga_raster_ioctl(void *, void *, u_long, void *, int, 306 struct lwp *); 307 static paddr_t vga_raster_mmap(void *, void *, off_t, int); 308 static int vga_raster_alloc_screen(void *, const struct wsscreen_descr *, 309 void **, int *, int *, long *); 310 static void vga_raster_free_screen(void *, void *); 311 static int vga_raster_show_screen(void *, void *, int, 312 void (*)(void *, int, int), void *); 313 static int vga_raster_load_font(void *, void *, struct wsdisplay_font *); 314 315 static void vga_switch_screen(struct vga_config *); 316 static void vga_raster_setscreentype(struct vga_config *, 317 const struct wsscreen_descr *); 318 319 const struct wsdisplay_accessops vga_raster_accessops = { 320 vga_raster_ioctl, 321 vga_raster_mmap, 322 vga_raster_alloc_screen, 323 vga_raster_free_screen, 324 vga_raster_show_screen, 325 vga_raster_load_font, 326 NULL, /* pollc */ 327 NULL, /* scroll */ 328 }; 329 330 int 331 vga_cnattach(bus_space_tag_t iot, bus_space_tag_t memt, int type, int check) 332 { 333 long defattr; 334 const struct wsscreen_descr *scr; 335 #ifdef VGA_CONSOLE_SCREENTYPE 336 const char *typestr = NULL; 337 #endif 338 339 if (check && !vga_common_probe(iot, memt)) 340 return (ENXIO); 341 342 /* set up bus-independent VGA configuration */ 343 vga_raster_init(&vga_console_vc, iot, memt); 344 #ifdef VGA_CONSOLE_SCREENTYPE 345 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 346 &vga_screenlist_mono : &vga_screenlist, VGA_CONSOLE_SCREENTYPE); 347 if (!scr) 348 /* Invalid screen type, continue with the default mode. */ 349 typestr = "80x25"; 350 else if (scr->nrows > 30) 351 /* Unsupported screen type, try 80x30. */ 352 typestr = "80x30"; 353 if (typestr) 354 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 355 &vga_screenlist_mono : &vga_screenlist, typestr); 356 if (scr != vga_console_vc.currenttype) 357 vga_console_vc.currenttype = scr; 358 #else 359 scr = vga_console_vc.currenttype; 360 #endif 361 vga_raster_init_screen(&vga_console_vc, &vga_console_screen, scr, 1, 362 &defattr); 363 364 vga_console_screen.active = 1; 365 vga_console_vc.active = &vga_console_screen; 366 367 wsdisplay_cnattach(scr, &vga_console_screen, 368 vga_console_screen.cursorcol, vga_console_screen.cursorrow, 369 defattr); 370 371 vgaconsole = 1; 372 vga_console_type = type; 373 return (0); 374 } 375 376 static void 377 vga_raster_init(struct vga_config *vc, bus_space_tag_t iot, 378 bus_space_tag_t memt) 379 { 380 struct vga_handle *vh = &vc->hdl; 381 u_int8_t mor; 382 struct vga_raster_font *vf; 383 384 vh->vh_iot = iot; 385 vh->vh_memt = memt; 386 387 if (bus_space_map(vh->vh_iot, 0x3c0, 0x10, 0, &vh->vh_ioh_vga)) 388 panic("vga_raster_init: couldn't map vga io"); 389 390 /* read "misc output register" */ 391 mor = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAR); 392 vh->vh_mono = !(mor & 1); 393 394 if (bus_space_map(vh->vh_iot, (vh->vh_mono ? 0x3b0 : 0x3d0), 0x10, 0, 395 &vh->vh_ioh_6845)) 396 panic("vga_raster_init: couldn't map 6845 io"); 397 398 if (bus_space_map(vh->vh_memt, 0xa0000, 0x20000, 0, &vh->vh_allmemh)) 399 panic("vga_raster_init: couldn't map memory"); 400 401 if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh, 0, 0x10000, 402 &vh->vh_memh)) 403 panic("vga_raster_init: mem subrange failed"); 404 405 /* should only reserve the space (no need to map - save KVM) */ 406 vc->vc_biostag = memt; 407 if (bus_space_map(vc->vc_biostag, 0xc0000, 0x8000, 0, &vc->vc_bioshdl)) 408 vc->vc_biosmapped = 0; 409 else 410 vc->vc_biosmapped = 1; 411 412 vc->nscreens = 0; 413 LIST_INIT(&vc->screens); 414 vc->active = NULL; 415 vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen; 416 callout_init(&vc->vc_switch_callout, 0); 417 418 wsfont_init(); 419 vc->nfonts = 1; 420 LIST_INIT(&vc->vc_fontlist); 421 vf = &vga_console_fontset_ascii; 422 if (vga_no_builtinfont) { 423 struct wsdisplay_font *wf; 424 int cookie; 425 426 /* prefer 8x16 pixel font */ 427 cookie = wsfont_find(NULL, 8, 16, 0, WSDISPLAY_FONTORDER_L2R, 428 0, WSFONT_FIND_BITMAP); 429 if (cookie == -1) 430 cookie = wsfont_find(NULL, 0, 0, 0, 431 WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R, 432 WSFONT_FIND_BITMAP); 433 if (cookie == -1 || wsfont_lock(cookie, &wf)) 434 panic("vga_raster_init: can't load console font"); 435 vf->font = wf; 436 } else { 437 vga_load_builtinfont(vh, builtinfont_data, 0, 256); 438 vf->font = &builtinfont; 439 } 440 LIST_INSERT_HEAD(&vc->vc_fontlist, vf, next); 441 } 442 443 static void 444 vga_raster_init_screen(struct vga_config *vc, struct vgascreen *scr, 445 const struct wsscreen_descr *type, int existing, long *attrp) 446 { 447 int cpos; 448 int res; 449 struct vga_handle *vh; 450 451 scr->cfg = vc; 452 scr->hdl = &vc->hdl; 453 scr->type = type; 454 scr->mindispoffset = 0; 455 scr->maxdispoffset = scr->dispoffset + 456 type->nrows * type->ncols * type->fontheight; 457 vh = &vc->hdl; 458 459 LIST_INIT(&scr->fontset); 460 vga_raster_setup_font(vc, scr); 461 462 if (existing) { 463 int i; 464 465 cpos = vga_6845_read(vh, cursorh) << 8; 466 cpos |= vga_6845_read(vh, cursorl); 467 468 /* make sure we have a valid cursor position */ 469 if (cpos < 0 || cpos >= type->nrows * type->ncols) 470 cpos = 0; 471 472 scr->dispoffset = vga_6845_read(vh, startadrh) << 9; 473 scr->dispoffset |= vga_6845_read(vh, startadrl) << 1; 474 475 /* make sure we have a valid memory offset */ 476 if (scr->dispoffset < scr->mindispoffset || 477 scr->dispoffset > scr->maxdispoffset) 478 scr->dispoffset = scr->mindispoffset; 479 480 scr->mem = boot_scrmem; 481 scr->active = 1; 482 483 /* Save the current screen to memory. XXXBJY assume 80x25 */ 484 for (i = 0; i < 80 * 25; i++) { 485 scr->mem[i].ch = bus_space_read_1(vh->vh_memt, 486 vh->vh_allmemh, 0x18000 + i * 2); 487 scr->mem[i].attr = bus_space_read_1(vh->vh_memt, 488 vh->vh_allmemh, 0x18000 + i * 2 + 1); 489 scr->mem[i].enc = scr->encoding; 490 } 491 492 vga_raster_setscreentype(vc, type); 493 494 /* Clear the entire screen. */ 495 vga_gdc_write(vh, mode, 0x02); 496 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 497 0x4000); 498 499 vga_restore_screen(scr, type, scr->mem); 500 } else { 501 cpos = 0; 502 scr->dispoffset = scr->mindispoffset; 503 scr->mem = NULL; 504 scr->active = 0; 505 } 506 507 scr->cursorrow = cpos / type->ncols; 508 scr->cursorcol = cpos % type->ncols; 509 vga_raster_cursor_init(scr, existing); 510 511 #ifdef __alpha__ 512 if (!vc->hdl.vh_mono) 513 /* 514 * DEC firmware uses a blue background. 515 */ 516 res = vga_raster_allocattr(scr, WSCOL_WHITE, WSCOL_BLUE, 517 WSATTR_WSCOLORS, attrp); 518 else 519 #endif 520 res = vga_raster_allocattr(scr, 0, 0, 0, attrp); 521 #ifdef DIAGNOSTIC 522 if (res) 523 panic("vga_raster_init_screen: attribute botch"); 524 #endif 525 526 vc->nscreens++; 527 LIST_INSERT_HEAD(&vc->screens, scr, next); 528 } 529 530 void 531 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, 532 bus_space_tag_t memt, int type, int quirks, 533 const struct vga_funcs *vf) 534 { 535 int console; 536 struct vga_config *vc; 537 struct wsemuldisplaydev_attach_args aa; 538 539 console = vga_is_console(iot, type); 540 541 if (console) { 542 vc = &vga_console_vc; 543 vga_console_attached = 1; 544 } else { 545 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK); 546 vga_raster_init(vc, iot, memt); 547 } 548 549 vc->vc_type = type; 550 vc->vc_funcs = vf; 551 552 sc->sc_vc = vc; 553 vc->softc = sc; 554 555 aa.console = console; 556 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); 557 aa.accessops = &vga_raster_accessops; 558 aa.accesscookie = vc; 559 560 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 561 } 562 563 int 564 vga_cndetach(void) 565 { 566 struct vga_config *vc; 567 struct vga_handle *vh; 568 569 vc = &vga_console_vc; 570 vh = &vc->hdl; 571 572 if (vgaconsole) { 573 bus_space_unmap(vh->vh_iot, vh->vh_ioh_vga, 0x10); 574 bus_space_unmap(vh->vh_iot, vh->vh_ioh_6845, 0x10); 575 576 return 1; 577 } 578 579 return 0; 580 } 581 582 int 583 vga_is_console(bus_space_tag_t iot, int type) 584 { 585 if (vgaconsole && 586 !vga_console_attached && 587 iot == vga_console_vc.hdl.vh_iot && 588 (vga_console_type == -1 || (type == vga_console_type))) 589 return (1); 590 return (0); 591 } 592 593 static int 594 vga_get_video(struct vga_config *vc) 595 { 596 597 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0; 598 } 599 600 static void 601 vga_set_video(struct vga_config *vc, int state) 602 { 603 int val; 604 605 vga_ts_write(&vc->hdl, syncreset, 0x01); 606 if (state) { /* unblank screen */ 607 val = vga_ts_read(&vc->hdl, mode); 608 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK); 609 #ifndef VGA_NO_VBLANK 610 val = vga_6845_read(&vc->hdl, mode); 611 vga_6845_write(&vc->hdl, mode, val | 0x80); 612 #endif 613 } else { /* blank screen */ 614 val = vga_ts_read(&vc->hdl, mode); 615 vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK); 616 #ifndef VGA_NO_VBLANK 617 val = vga_6845_read(&vc->hdl, mode); 618 vga_6845_write(&vc->hdl, mode, val & ~0x80); 619 #endif 620 } 621 vga_ts_write(&vc->hdl, syncreset, 0x03); 622 } 623 624 int 625 vga_raster_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 626 struct lwp *l) 627 { 628 struct vga_config *vc = v; 629 const struct vga_funcs *vf = vc->vc_funcs; 630 631 switch (cmd) { 632 case WSDISPLAYIO_GTYPE: 633 *(int *)data = vc->vc_type; 634 return 0; 635 636 case WSDISPLAYIO_GINFO: { 637 struct wsdisplay_fbinfo *fbi = data; 638 const struct wsscreen_descr *wd = vc->currenttype; 639 const struct videomode *vm = wd->modecookie; 640 fbi->width = vm->hdisplay; 641 fbi->height = vm->vdisplay; 642 fbi->depth = 24; /* xxx: ? */ 643 fbi->cmsize = 256; /* xxx: from palette */ 644 return 0; 645 } 646 647 case WSDISPLAYIO_GVIDEO: 648 *(int *)data = (vga_get_video(vc) ? 649 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); 650 return 0; 651 652 case WSDISPLAYIO_SVIDEO: 653 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 654 return 0; 655 656 case WSDISPLAYIO_GETCMAP: 657 case WSDISPLAYIO_PUTCMAP: 658 case WSDISPLAYIO_GCURPOS: 659 case WSDISPLAYIO_SCURPOS: 660 case WSDISPLAYIO_GCURMAX: 661 case WSDISPLAYIO_GCURSOR: 662 case WSDISPLAYIO_SCURSOR: 663 #ifdef DIAGNOSTIC 664 printf("%s: 0x%lx unsupported\n", __func__, cmd); 665 #endif 666 /* NONE of these operations are by the generic VGA driver. */ 667 return EPASSTHROUGH; 668 } 669 670 if (vc->vc_funcs == NULL) { 671 #ifdef DIAGNOSTIC 672 printf("%s: no vc_funcs\n", __func__); 673 #endif 674 return EPASSTHROUGH; 675 } 676 677 if (vf->vf_ioctl == NULL) { 678 #ifdef DIAGNOSTIC 679 printf("%s: no vf_ioctl\n", __func__); 680 #endif 681 return EPASSTHROUGH; 682 } 683 684 return ((*vf->vf_ioctl)(v, cmd, data, flag, l)); 685 } 686 687 static paddr_t 688 vga_raster_mmap(void *v, void *vs, off_t offset, int prot) 689 { 690 struct vga_config *vc = v; 691 const struct vga_funcs *vf = vc->vc_funcs; 692 693 if (vc->vc_funcs == NULL) 694 return (-1); 695 696 if (vf->vf_mmap == NULL) 697 return (-1); 698 699 return ((*vf->vf_mmap)(v, offset, prot)); 700 } 701 702 static int 703 vga_raster_alloc_screen(void *v, const struct wsscreen_descr *type, 704 void **cookiep, int *curxp, int *curyp, long *defattrp) 705 { 706 struct vga_config *vc = v; 707 struct vgascreen *scr; 708 709 if (vc->nscreens == 1) { 710 vc->screens.lh_first->mem = boot_scrmem; 711 } 712 713 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 714 vga_raster_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 715 716 if (vc->nscreens == 1) { 717 scr->active = 1; 718 vc->active = scr; 719 vc->currenttype = type; 720 } else { 721 scr->mem = malloc(sizeof(struct vga_scrmem) * 722 type->ncols * type->nrows, M_DEVBUF, M_WAITOK); 723 vga_raster_eraserows(scr, 0, type->nrows, *defattrp); 724 } 725 726 *cookiep = scr; 727 *curxp = scr->cursorcol; 728 *curyp = scr->cursorrow; 729 730 return (0); 731 } 732 733 static void 734 vga_raster_free_screen(void *v, void *cookie) 735 { 736 struct vgascreen *vs = cookie; 737 struct vga_config *vc = vs->cfg; 738 739 LIST_REMOVE(vs, next); 740 vc->nscreens--; 741 if (vs != &vga_console_screen) 742 free(vs, M_DEVBUF); 743 else 744 panic("vga_raster_free_screen: console"); 745 746 if (vc->active == vs) 747 vc->active = 0; 748 } 749 750 static int 751 vga_raster_show_screen(void *v, void *cookie, int waitok, 752 void (*cb)(void *, int, int), void *cbarg) 753 { 754 struct vgascreen *scr = cookie, *oldscr; 755 struct vga_config *vc = scr->cfg; 756 757 oldscr = vc->active; /* can be NULL! */ 758 if (scr == oldscr) { 759 return (0); 760 } 761 762 vc->wantedscreen = cookie; 763 vc->switchcb = cb; 764 vc->switchcbarg = cbarg; 765 if (cb) { 766 callout_reset(&vc->vc_switch_callout, 0, 767 (void(*)(void *))vga_switch_screen, vc); 768 return (EAGAIN); 769 } 770 771 vga_switch_screen(vc); 772 return (0); 773 } 774 775 static void 776 vga_switch_screen(struct vga_config *vc) 777 { 778 struct vgascreen *scr, *oldscr; 779 struct vga_handle *vh = &vc->hdl; 780 const struct wsscreen_descr *type; 781 782 scr = vc->wantedscreen; 783 if (!scr) { 784 printf("vga_switch_screen: disappeared\n"); 785 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 786 return; 787 } 788 type = scr->type; 789 oldscr = vc->active; /* can be NULL! */ 790 #ifdef DIAGNOSTIC 791 if (oldscr) { 792 if (!oldscr->active) 793 panic("vga_raster_show_screen: not active"); 794 if (oldscr->type != vc->currenttype) 795 panic("vga_raster_show_screen: bad type"); 796 } 797 #endif 798 if (scr == oldscr) { 799 return; 800 } 801 #ifdef DIAGNOSTIC 802 if (scr->active) 803 panic("vga_raster_show_screen: active"); 804 #endif 805 806 if (oldscr) 807 oldscr->active = 0; 808 809 if (vc->currenttype != type) { 810 vga_raster_setscreentype(vc, type); 811 vc->currenttype = type; 812 } 813 814 scr->dispoffset = scr->mindispoffset; 815 816 if (!oldscr || (scr->dispoffset != oldscr->dispoffset)) { 817 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 818 vga_6845_write(vh, startadrl, scr->dispoffset); 819 } 820 821 /* Clear the entire screen. */ 822 vga_gdc_write(vh, mode, 0x02); 823 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x2000); 824 825 scr->active = 1; 826 vga_restore_screen(scr, type, scr->mem); 827 828 vc->active = scr; 829 830 vga_raster_cursor(scr, scr->cursoron, scr->cursorrow, scr->cursorcol); 831 832 vc->wantedscreen = 0; 833 if (vc->switchcb) 834 (*vc->switchcb)(vc->switchcbarg, 0, 0); 835 } 836 837 static int 838 vga_raster_load_font(void *v, void *id, 839 struct wsdisplay_font *data) 840 { 841 /* XXX */ 842 printf("vga_raster_load_font: called\n"); 843 844 return (0); 845 } 846 847 static void 848 vga_raster_setup_font(struct vga_config *vc, struct vgascreen *scr) 849 { 850 struct vga_raster_font *vf; 851 struct wsdisplay_font *wf; 852 int cookie; 853 854 LIST_FOREACH(vf, &vc->vc_fontlist, next) { 855 if (wsfont_matches(vf->font, 0, 0, scr->type->fontheight, 0, 856 WSFONT_FIND_BITMAP)) { 857 scr->encoding = vf->font->encoding; 858 LIST_INSERT_HEAD(&scr->fontset, vf, next); 859 return; 860 } 861 } 862 863 cookie = wsfont_find(NULL, 0, scr->type->fontheight, 0, 864 WSDISPLAY_FONTORDER_L2R, 0, WSFONT_FIND_BITMAP); 865 if (cookie == -1) 866 return; 867 868 if (wsfont_lock(cookie, &wf)) 869 return; 870 871 vf = malloc(sizeof(struct vga_raster_font), M_DEVBUF, M_NOWAIT); 872 if (!vf) { 873 wsfont_unlock(cookie); 874 return; 875 } 876 877 vf->font = wf; 878 scr->encoding = vf->font->encoding; 879 LIST_INSERT_HEAD(&scr->fontset, vf, next); 880 } 881 882 static void 883 vga_setup_regs(struct videomode *mode, struct vga_moderegs *regs) 884 { 885 int i; 886 int depth = 4; /* XXXBJY hardcoded for now */ 887 const u_int8_t palette[] = { 888 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 889 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f 890 }; 891 892 /* 893 * Compute hsync and vsync polarity. 894 */ 895 if ((mode->flags & (VID_PHSYNC | VID_NHSYNC)) 896 && (mode->flags & (VID_PVSYNC | VID_NVSYNC))) { 897 regs->miscout = 0x23; 898 if (mode->flags & VID_NHSYNC) 899 regs->miscout |= 0x40; 900 if (mode->flags & VID_NVSYNC) 901 regs->miscout |= 0x80; 902 } else { 903 if (mode->flags & VID_DBLSCAN) 904 mode->vdisplay *= 2; 905 if (mode->vdisplay < 400) 906 regs->miscout = 0xa3; 907 else if (mode->vdisplay < 480) 908 regs->miscout = 0x63; 909 else if (mode->vdisplay < 768) 910 regs->miscout = 0xe3; 911 else 912 regs->miscout = 0x23; 913 } 914 915 /* 916 * Time sequencer 917 */ 918 if (depth == 4) 919 regs->ts[0] = 0x02; 920 else 921 regs->ts[0] = 0x00; 922 if (mode->flags & VID_CLKDIV2) 923 regs->ts[1] = 0x09; 924 else 925 regs->ts[1] = 0x01; 926 regs->ts[2] = 0x0f; 927 regs->ts[3] = 0x00; 928 if (depth < 8) 929 regs->ts[4] = 0x06; 930 else 931 regs->ts[4] = 0x0e; 932 933 /* 934 * CRTC controller 935 */ 936 regs->crtc[0] = (mode->htotal >> 3) - 5; 937 regs->crtc[1] = (mode->hdisplay >> 3) - 1; 938 regs->crtc[2] = (mode->hsync_start >> 3) - 1; 939 regs->crtc[3] = (((mode->hsync_end >> 3) - 1) & 0x1f) | 0x80; 940 regs->crtc[4] = mode->hsync_start >> 3; 941 regs->crtc[5] = ((((mode->hsync_end >> 3) - 1) & 0x20) << 2) 942 | (((mode->hsync_end >> 3)) & 0x1f); 943 regs->crtc[6] = (mode->vtotal - 2) & 0xff; 944 regs->crtc[7] = (((mode->vtotal - 2) & 0x100) >> 8) 945 | (((mode->vdisplay - 1) & 0x100) >> 7) 946 | ((mode->vsync_start & 0x100) >> 6) 947 | (((mode->vsync_start - 1) & 0x100) >> 5) 948 | 0x10 949 | (((mode->vtotal - 2) & 0x200) >> 4) 950 | (((mode->vdisplay - 1) & 0x200) >> 3) 951 | ((mode->vsync_start & 0x200) >> 2); 952 regs->crtc[8] = 0x00; 953 regs->crtc[9] = (((mode->vsync_start - 1) & 0x200) >> 4) | 0x40; 954 if (mode->flags & VID_DBLSCAN) 955 regs->crtc[9] |= 0x80; 956 regs->crtc[10] = 0x00; 957 regs->crtc[11] = 0x00; 958 regs->crtc[12] = 0x00; 959 regs->crtc[13] = 0x00; 960 regs->crtc[14] = 0x00; 961 regs->crtc[15] = 0x00; 962 regs->crtc[16] = mode->vsync_start & 0xff; 963 regs->crtc[17] = (mode->vsync_end & 0x0f) | 0x20; 964 regs->crtc[18] = (mode->vdisplay - 1) & 0xff; 965 regs->crtc[19] = mode->hdisplay >> 4; /* XXXBJY */ 966 regs->crtc[20] = 0x00; 967 regs->crtc[21] = (mode->vsync_start - 1) & 0xff; 968 regs->crtc[22] = (mode->vsync_end - 1) & 0xff; 969 if (depth < 8) 970 regs->crtc[23] = 0xe3; 971 else 972 regs->crtc[23] = 0xc3; 973 regs->crtc[24] = 0xff; 974 975 /* 976 * Graphics display controller 977 */ 978 regs->gdc[0] = 0x00; 979 regs->gdc[1] = 0x00; 980 regs->gdc[2] = 0x00; 981 regs->gdc[3] = 0x00; 982 regs->gdc[4] = 0x00; 983 if (depth == 4) 984 regs->gdc[5] = 0x02; 985 else 986 regs->gdc[5] = 0x40; 987 regs->gdc[6] = 0x01; 988 regs->gdc[7] = 0x0f; 989 regs->gdc[8] = 0xff; 990 991 /* 992 * Attribute controller 993 */ 994 /* Set palette registers. */ 995 for (i = 0; i < 16; i++) 996 regs->atc[i] = palette[i]; 997 if (depth == 4) 998 regs->atc[16] = 0x01; /* XXXBJY was 0x81 in XFree86 */ 999 else 1000 regs->atc[16] = 0x41; 1001 regs->atc[17] = 0x00; /* XXXBJY just a guess */ 1002 regs->atc[18] = 0x0f; 1003 regs->atc[19] = 0x00; 1004 regs->atc[20] = 0x00; 1005 } 1006 1007 static void 1008 vga_set_mode(struct vga_handle *vh, struct vga_moderegs *regs) 1009 { 1010 int i; 1011 1012 /* Disable display. */ 1013 vga_ts_write(vh, mode, vga_ts_read(vh, mode) | VGA_TS_MODE_BLANK); 1014 1015 /* Write misc output register. */ 1016 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAW, 1017 regs->miscout); 1018 1019 /* Set synchronous reset. */ 1020 vga_ts_write(vh, syncreset, 0x01); 1021 vga_ts_write(vh, mode, regs->ts[1] | VGA_TS_MODE_BLANK); 1022 for (i = 2; i < VGA_TS_NREGS; i++) 1023 _vga_ts_write(vh, i, regs->ts[i]); 1024 /* Clear synchronous reset. */ 1025 vga_ts_write(vh, syncreset, 0x03); 1026 1027 /* Unprotect CRTC registers 0-7. */ 1028 vga_6845_write(vh, vsynce, vga_6845_read(vh, vsynce) & ~0x80); 1029 /* Write CRTC registers. */ 1030 for (i = 0; i < MC6845_NREGS; i++) 1031 _vga_6845_write(vh, i, regs->crtc[i]); 1032 1033 /* Write graphics display registers. */ 1034 for (i = 0; i < VGA_GDC_NREGS; i++) 1035 _vga_gdc_write(vh, i, regs->gdc[i]); 1036 1037 /* Write attribute controller registers. */ 1038 for (i = 0; i < VGA_ATC_NREGS; i++) 1039 _vga_attr_write(vh, i, regs->atc[i]); 1040 1041 /* Enable display. */ 1042 vga_ts_write(vh, mode, vga_ts_read(vh, mode) & ~VGA_TS_MODE_BLANK); 1043 } 1044 1045 static void 1046 vga_raster_cursor_init(struct vgascreen *scr, int existing) 1047 { 1048 int off; 1049 1050 if (existing) { 1051 /* 1052 * This is the first screen. At this point, scr->active is 1053 * false, so we can't use vga_raster_cursor() to do this. 1054 */ 1055 off = (scr->cursorrow * scr->type->ncols + scr->cursorcol) + 1056 scr->dispoffset / 8; 1057 1058 scr->cursortmp = scr->mem[off]; 1059 vga_raster_putchar(scr, scr->cursorrow, scr->cursorcol, 1060 scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); 1061 } else { 1062 scr->cursortmp.ch = 0; 1063 scr->cursortmp.attr = 0; 1064 scr->cursortmp.second = 0; 1065 scr->cursortmp.enc = scr->encoding; 1066 } 1067 1068 scr->cursoron = 1; 1069 } 1070 1071 static void 1072 vga_raster_cursor(void *id, int on, int row, int col) 1073 { 1074 struct vgascreen *scr = id; 1075 int off, tmp; 1076 1077 /* Remove old cursor image */ 1078 if (scr->cursoron) { 1079 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1080 if (scr->active) { 1081 tmp = scr->encoding; 1082 scr->encoding = scr->cursortmp.enc; 1083 if (scr->cursortmp.second) 1084 vga_raster_putchar(id, scr->cursorrow, 1085 scr->cursorcol - 1, scr->cursortmp.ch, 1086 scr->cursortmp.attr); 1087 else 1088 vga_raster_putchar(id, scr->cursorrow, 1089 scr->cursorcol, scr->cursortmp.ch, 1090 scr->cursortmp.attr); 1091 scr->encoding = tmp; 1092 } 1093 } 1094 1095 scr->cursorrow = row; 1096 scr->cursorcol = col; 1097 1098 if ((scr->cursoron = on) == 0) 1099 return; 1100 1101 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1102 scr->cursortmp = scr->mem[off]; 1103 if (scr->active) { 1104 tmp = scr->encoding; 1105 scr->encoding = scr->cursortmp.enc; 1106 if (scr->cursortmp.second) 1107 vga_raster_putchar(id, scr->cursorrow, 1108 scr->cursorcol - 1, scr->cursortmp.ch, 1109 scr->cursortmp.attr ^ 0x77); 1110 else 1111 vga_raster_putchar(id, scr->cursorrow, 1112 scr->cursorcol, scr->cursortmp.ch, 1113 scr->cursortmp.attr ^ 0x77); 1114 scr->encoding = tmp; 1115 } 1116 } 1117 1118 static int 1119 vga_raster_mapchar(void *id, int uni, u_int *index) 1120 { 1121 struct vgascreen *scr = id; 1122 1123 if (scr->encoding == WSDISPLAY_FONTENC_IBM) 1124 return pcdisplay_mapchar(id, uni, index); 1125 else { 1126 *index = uni; 1127 return 5; 1128 } 1129 } 1130 1131 static void 1132 vga_raster_putchar(void *id, int row, int col, u_int c, long attr) 1133 { 1134 struct vgascreen *scr = id; 1135 size_t off; 1136 struct vga_raster_font *fs; 1137 u_int tmp_ch; 1138 1139 off = row * scr->type->ncols + col; 1140 1141 if (__predict_false(off >= (scr->type->ncols * scr->type->nrows))) 1142 return; 1143 1144 LIST_FOREACH(fs, &scr->fontset, next) { 1145 if ((scr->encoding == fs->font->encoding) && 1146 (c >= fs->font->firstchar) && 1147 (c < fs->font->firstchar + fs->font->numchars) && 1148 (scr->type->fontheight == fs->font->fontheight)) { 1149 if (scr->active) { 1150 tmp_ch = c - fs->font->firstchar; 1151 _vga_raster_putchar(scr, row, col, tmp_ch, 1152 attr, fs); 1153 } 1154 1155 scr->mem[off].ch = c; 1156 scr->mem[off].attr = attr; 1157 scr->mem[off].second = 0; 1158 scr->mem[off].enc = fs->font->encoding; 1159 1160 if (fs->font->stride == 2) { 1161 scr->mem[off + 1].ch = c; 1162 scr->mem[off + 1].attr = attr; 1163 scr->mem[off + 1].second = 1; 1164 scr->mem[off + 1].enc = fs->font->encoding; 1165 } 1166 1167 return; 1168 } 1169 } 1170 1171 /* 1172 * No match found. 1173 */ 1174 if (scr->active) 1175 /* 1176 * Put a single width space character no matter what the 1177 * actual width of the character is. 1178 */ 1179 _vga_raster_putchar(scr, row, col, ' ', attr, 1180 &vga_console_fontset_ascii); 1181 scr->mem[off].ch = c; 1182 scr->mem[off].attr = attr; 1183 scr->mem[off].second = 0; 1184 scr->mem[off].enc = scr->encoding; 1185 } 1186 1187 static void 1188 _vga_raster_putchar(void *id, int row, int col, u_int c, long attr, 1189 struct vga_raster_font *fs) 1190 { 1191 struct vgascreen *scr = id; 1192 struct vga_handle *vh = scr->hdl; 1193 bus_space_tag_t memt = vh->vh_memt; 1194 bus_space_handle_t memh = vh->vh_memh; 1195 int i; 1196 int rasoff, rasoff2; 1197 int fheight = scr->type->fontheight; 1198 volatile u_int8_t pattern; 1199 u_int8_t fgcolor, bgcolor; 1200 1201 rasoff = scr->dispoffset + row * scr->type->ncols * fheight + col; 1202 rasoff2 = rasoff; 1203 1204 #if 0 1205 bgcolor = bgansitopc[attr >> 4]; 1206 fgcolor = fgansitopc[attr & 0x0f]; 1207 #else 1208 bgcolor = ((attr >> 4) & 0x0f); 1209 fgcolor = attr & 0x0f; 1210 #endif 1211 1212 if (fs->font->stride == 1) { 1213 /* Paint background. */ 1214 vga_gdc_write(vh, mode, 0x02); 1215 for (i = 0; i < fheight; i++) { 1216 bus_space_write_1(memt, memh, rasoff, bgcolor); 1217 rasoff += scr->type->ncols; 1218 } 1219 1220 /* Draw a single width character. */ 1221 vga_gdc_write(vh, mode, 0x03); 1222 vga_gdc_write(vh, setres, fgcolor); 1223 for (i = 0; i < fheight; i++) { 1224 pattern = ((u_int8_t *)fs->font->data)[c * fheight + i]; 1225 /* When pattern is 0, skip output for speed-up. */ 1226 if (pattern != 0) { 1227 bus_space_read_1(memt, memh, rasoff2); 1228 bus_space_write_1(memt, memh, rasoff2, pattern); 1229 } 1230 rasoff2 += scr->type->ncols; 1231 } 1232 } else if (fs->font->stride == 2) { 1233 /* Paint background. */ 1234 vga_gdc_write(vh, mode, 0x02); 1235 for (i = 0; i < fheight; i++) { 1236 bus_space_write_1(memt, memh, rasoff, bgcolor); 1237 bus_space_write_1(memt, memh, rasoff + 1, bgcolor); 1238 rasoff += scr->type->ncols; 1239 } 1240 1241 /* Draw a double width character. */ 1242 vga_gdc_write(vh, mode, 0x03); 1243 vga_gdc_write(vh, setres, fgcolor); 1244 for (i = 0; i < fheight; i++) { 1245 pattern = ((u_int8_t *)fs->font->data) 1246 [(c * fheight + i) * 2]; 1247 if (pattern != 0) { 1248 bus_space_read_1(memt, memh, rasoff2); 1249 bus_space_write_1(memt, memh, rasoff2, pattern); 1250 } 1251 pattern = ((u_int8_t *)fs->font->data) 1252 [(c * fheight + i) * 2 + 1]; 1253 if (pattern != 0) { 1254 rasoff2++; 1255 bus_space_read_1(memt, memh, rasoff2); 1256 bus_space_write_1(memt, memh, rasoff2, pattern); 1257 rasoff2--; 1258 } 1259 rasoff2 += scr->type->ncols; 1260 } 1261 } 1262 } 1263 1264 static void 1265 vga_raster_copycols(void *id, int row, int srccol, int dstcol, int ncols) 1266 { 1267 struct vgascreen *scr = id; 1268 struct vga_handle *vh = scr->hdl; 1269 bus_space_tag_t memt = vh->vh_memt; 1270 bus_space_handle_t memh = vh->vh_memh; 1271 bus_size_t srcoff, dstoff; 1272 bus_size_t rassrcoff, rasdstoff; 1273 int i; 1274 int fheight = scr->type->fontheight; 1275 1276 srcoff = row * scr->type->ncols + srccol; 1277 dstoff = row * scr->type->ncols + dstcol; 1278 rassrcoff = scr->dispoffset + row * scr->type->ncols * fheight + srccol; 1279 rasdstoff = scr->dispoffset + row * scr->type->ncols * fheight + dstcol; 1280 1281 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1282 ncols * sizeof(struct vga_scrmem)); 1283 1284 vga_gdc_write(vh, mode, 0x01); 1285 if (scr->active) { 1286 for (i = 0; i < fheight; i++) { 1287 bus_space_copy_region_1(memt, memh, 1288 rassrcoff + i * scr->type->ncols, memh, 1289 rasdstoff + i * scr->type->ncols, ncols); 1290 } 1291 } 1292 } 1293 1294 static void 1295 vga_raster_erasecols(void *id, int row, int startcol, int ncols, long fillattr) 1296 { 1297 struct vgascreen *scr = id; 1298 int i; 1299 1300 if (scr->active == 0) 1301 return; 1302 1303 for (i = startcol; i < startcol + ncols; i++) 1304 vga_raster_putchar(id, row, i, ' ', fillattr); 1305 } 1306 1307 static void 1308 vga_raster_copyrows(void *id, int srcrow, int dstrow, int nrows) 1309 { 1310 struct vgascreen *scr = id; 1311 struct vga_handle *vh = scr->hdl; 1312 bus_space_tag_t memt = vh->vh_memt; 1313 bus_space_handle_t memh = vh->vh_memh; 1314 int ncols; 1315 bus_size_t srcoff, dstoff; 1316 bus_size_t rassrcoff, rasdstoff; 1317 int fheight; 1318 1319 ncols = scr->type->ncols; 1320 fheight = scr->type->fontheight; 1321 1322 srcoff = srcrow * ncols; 1323 dstoff = dstrow * ncols; 1324 rassrcoff = srcoff * fheight; 1325 rasdstoff = dstoff * fheight; 1326 1327 if (scr->active) { 1328 vga_gdc_write(vh, mode, 0x01); 1329 if (dstrow == 0 && (srcrow + nrows == scr->type->nrows)) { 1330 int cursoron = scr->cursoron; 1331 1332 if (cursoron) 1333 /* Disable cursor. */ 1334 vga_raster_cursor(scr, 0, 1335 scr->cursorrow, scr->cursorcol); 1336 1337 /* scroll up whole screen */ 1338 if ((scr->dispoffset + srcrow * ncols * fheight) 1339 <= scr->maxdispoffset) 1340 scr->dispoffset += srcrow * ncols * fheight; 1341 else { 1342 bus_space_copy_region_1(memt, memh, 1343 scr->dispoffset + rassrcoff, 1344 memh, scr->mindispoffset, 1345 nrows * ncols * fheight); 1346 scr->dispoffset = scr->mindispoffset; 1347 } 1348 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 1349 vga_6845_write(vh, startadrl, scr->dispoffset); 1350 1351 if (cursoron) 1352 /* Enable cursor. */ 1353 vga_raster_cursor(scr, 1, scr->cursorrow, 1354 scr->cursorcol); 1355 } else 1356 bus_space_copy_region_1(memt, memh, 1357 scr->dispoffset + rassrcoff, memh, 1358 scr->dispoffset + rasdstoff, 1359 nrows * ncols * fheight); 1360 } 1361 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1362 nrows * ncols * sizeof(struct vga_scrmem)); 1363 } 1364 1365 static void 1366 vga_raster_eraserows(void *id, int startrow, int nrows, long fillattr) 1367 { 1368 struct vgascreen *scr = id; 1369 struct vga_handle *vh = scr->hdl; 1370 bus_space_tag_t memt = vh->vh_memt; 1371 bus_space_handle_t memh = vh->vh_memh; 1372 bus_size_t off, count; 1373 bus_size_t rasoff, rascount; 1374 int i; 1375 1376 off = startrow * scr->type->ncols; 1377 count = nrows * scr->type->ncols; 1378 rasoff = off * scr->type->fontheight; 1379 rascount = count * scr->type->fontheight; 1380 1381 if (scr->active) { 1382 u_int8_t bgcolor = (fillattr >> 4) & 0x0F; 1383 1384 /* Paint background. */ 1385 vga_gdc_write(vh, mode, 0x02); 1386 if (scr->type->ncols % 4 == 0) { 1387 u_int32_t fill = bgcolor | (bgcolor << 8) | 1388 (bgcolor << 16) | (bgcolor << 24); 1389 /* We can speed up I/O */ 1390 for (i = rasoff; i < rasoff + rascount; i += 4) 1391 bus_space_write_4(memt, memh, 1392 scr->dispoffset + i, fill); 1393 } else { 1394 u_int16_t fill = bgcolor | (bgcolor << 8); 1395 for (i = rasoff; i < rasoff + rascount; i += 2) 1396 bus_space_write_2(memt, memh, 1397 scr->dispoffset + i, fill); 1398 } 1399 } 1400 for (i = 0; i < count; i++) { 1401 scr->mem[off + i].ch = ' '; 1402 scr->mem[off + i].attr = fillattr; 1403 scr->mem[off + i].second = 0; 1404 scr->mem[off + i].enc = scr->encoding; 1405 } 1406 } 1407 1408 static int 1409 vga_raster_allocattr(void *id, int fg, int bg, int flags, long *attrp) 1410 { 1411 struct vgascreen *scr = id; 1412 struct vga_config *vc = scr->cfg; 1413 1414 if (__predict_false((unsigned int)fg >= sizeof(fgansitopc) || 1415 (unsigned int)bg >= sizeof(bgansitopc))) 1416 return (EINVAL); 1417 1418 if (vc->hdl.vh_mono) { 1419 if (flags & WSATTR_WSCOLORS) 1420 return (EINVAL); 1421 if (flags & WSATTR_REVERSE) 1422 *attrp = 0x70; 1423 else 1424 *attrp = 0x07; 1425 if (flags & WSATTR_UNDERLINE) 1426 *attrp |= FG_UNDERLINE; 1427 if (flags & WSATTR_HILIT) 1428 *attrp |= FG_INTENSE; 1429 } else { 1430 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1431 return (EINVAL); 1432 if (flags & WSATTR_WSCOLORS) 1433 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1434 else 1435 *attrp = 7; 1436 if (flags & WSATTR_HILIT) 1437 *attrp += 8; 1438 } 1439 if (flags & WSATTR_BLINK) 1440 *attrp |= FG_BLINK; 1441 return (0); 1442 } 1443 1444 static void 1445 vga_restore_screen(struct vgascreen *scr, 1446 const struct wsscreen_descr *type, struct vga_scrmem *mem) 1447 { 1448 int i, j, off, tmp; 1449 1450 tmp = scr->encoding; 1451 for (i = 0; i < type->nrows; i++) { 1452 for (j = 0; j < type->ncols; j++) { 1453 off = i * type->ncols + j; 1454 if (mem[off].second != 1) { 1455 scr->encoding = mem[off].enc; 1456 vga_raster_putchar(scr, i, j, mem[off].ch, 1457 mem[off].attr); 1458 } 1459 } 1460 } 1461 scr->encoding = tmp; 1462 } 1463 1464 static void 1465 vga_raster_setscreentype(struct vga_config *vc, 1466 const struct wsscreen_descr *type) 1467 { 1468 struct vga_handle *vh = &vc->hdl; 1469 struct vga_moderegs moderegs; 1470 1471 vga_setup_regs((struct videomode *)type->modecookie, &moderegs); 1472 vga_set_mode(vh, &moderegs); 1473 } 1474 1475 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1476 static void 1477 vga_raster_replaceattr(void *id, long oldattr, long newattr) 1478 { 1479 struct vgascreen *scr = id; 1480 const struct wsscreen_descr *type = scr->type; 1481 int off; 1482 1483 for (off = 0; off < type->nrows * type->ncols; off++) { 1484 if (scr->mem[off].attr == oldattr) 1485 scr->mem[off].attr = newattr; 1486 } 1487 1488 /* Repaint the whole screen, if needed */ 1489 if (scr->active) 1490 vga_restore_screen(scr, type, scr->mem); 1491 } 1492 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 1493 1494 void 1495 vga_resume(struct vga_softc *sc) 1496 { 1497 #ifdef VGA_RESET_ON_RESUME 1498 vga_initregs(&sc->sc_vc->hdl); 1499 #endif 1500 } 1501