1 /* $NetBSD: vga_raster.c,v 1.37 2013/04/14 16:37:32 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2001, 2002 Bang Jun-Young 5 * Copyright (c) 2004 Julio M. Merino Vidal 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* 32 * Copyright (c) 1995, 1996 Carnegie-Mellon University. 33 * All rights reserved. 34 * 35 * Author: Chris G. Demetriou 36 * 37 * Permission to use, copy, modify and distribute this software and 38 * its documentation is hereby granted, provided that both the copyright 39 * notice and this permission notice appear in all copies of the 40 * software, derivative works or modified versions, and any portions 41 * thereof, and that both notices appear in supporting documentation. 42 * 43 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 44 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 45 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 46 * 47 * Carnegie Mellon requests users of this software to return to 48 * 49 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 50 * School of Computer Science 51 * Carnegie Mellon University 52 * Pittsburgh PA 15213-3890 53 * 54 * any improvements or extensions that they make and grant Carnegie the 55 * rights to redistribute these changes. 56 */ 57 58 #include <sys/cdefs.h> 59 __KERNEL_RCSID(0, "$NetBSD: vga_raster.c,v 1.37 2013/04/14 16:37:32 christos Exp $"); 60 61 #include "opt_wsmsgattrs.h" /* for WSDISPLAY_CUSTOM_OUTPUT */ 62 63 #include <sys/param.h> 64 #include <sys/systm.h> 65 #include <sys/callout.h> 66 #include <sys/kernel.h> 67 #include <sys/device.h> 68 #include <sys/malloc.h> 69 #include <sys/queue.h> 70 #include <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/videomode/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 static 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, WSFONT_FIND_BITMAP); 428 if (cookie == -1) 429 cookie = wsfont_find(NULL, 0, 0, 0, 430 WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R, 431 WSFONT_FIND_BITMAP); 432 if (cookie == -1 || wsfont_lock(cookie, &wf)) 433 panic("vga_raster_init: can't load console font"); 434 vf->font = wf; 435 } else { 436 vga_load_builtinfont(vh, builtinfont_data, 0, 256); 437 vf->font = &builtinfont; 438 } 439 LIST_INSERT_HEAD(&vc->vc_fontlist, vf, next); 440 } 441 442 static void 443 vga_raster_init_screen(struct vga_config *vc, struct vgascreen *scr, 444 const struct wsscreen_descr *type, int existing, long *attrp) 445 { 446 int cpos; 447 int res; 448 struct vga_handle *vh; 449 450 scr->cfg = vc; 451 scr->hdl = &vc->hdl; 452 scr->type = type; 453 scr->mindispoffset = 0; 454 scr->maxdispoffset = scr->dispoffset + 455 type->nrows * type->ncols * type->fontheight; 456 vh = &vc->hdl; 457 458 LIST_INIT(&scr->fontset); 459 vga_raster_setup_font(vc, scr); 460 461 if (existing) { 462 int i; 463 464 cpos = vga_6845_read(vh, cursorh) << 8; 465 cpos |= vga_6845_read(vh, cursorl); 466 467 /* make sure we have a valid cursor position */ 468 if (cpos < 0 || cpos >= type->nrows * type->ncols) 469 cpos = 0; 470 471 scr->dispoffset = vga_6845_read(vh, startadrh) << 9; 472 scr->dispoffset |= vga_6845_read(vh, startadrl) << 1; 473 474 /* make sure we have a valid memory offset */ 475 if (scr->dispoffset < scr->mindispoffset || 476 scr->dispoffset > scr->maxdispoffset) 477 scr->dispoffset = scr->mindispoffset; 478 479 scr->mem = boot_scrmem; 480 scr->active = 1; 481 482 /* Save the current screen to memory. XXXBJY assume 80x25 */ 483 for (i = 0; i < 80 * 25; i++) { 484 scr->mem[i].ch = bus_space_read_1(vh->vh_memt, 485 vh->vh_allmemh, 0x18000 + i * 2); 486 scr->mem[i].attr = bus_space_read_1(vh->vh_memt, 487 vh->vh_allmemh, 0x18000 + i * 2 + 1); 488 scr->mem[i].enc = scr->encoding; 489 } 490 491 vga_raster_setscreentype(vc, type); 492 493 /* Clear the entire screen. */ 494 vga_gdc_write(vh, mode, 0x02); 495 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 496 0x4000); 497 498 vga_restore_screen(scr, type, scr->mem); 499 } else { 500 cpos = 0; 501 scr->dispoffset = scr->mindispoffset; 502 scr->mem = NULL; 503 scr->active = 0; 504 } 505 506 scr->cursorrow = cpos / type->ncols; 507 scr->cursorcol = cpos % type->ncols; 508 vga_raster_cursor_init(scr, existing); 509 510 #ifdef __alpha__ 511 if (!vc->hdl.vh_mono) 512 /* 513 * DEC firmware uses a blue background. 514 */ 515 res = vga_raster_allocattr(scr, WSCOL_WHITE, WSCOL_BLUE, 516 WSATTR_WSCOLORS, attrp); 517 else 518 #endif 519 res = vga_raster_allocattr(scr, 0, 0, 0, attrp); 520 #ifdef DIAGNOSTIC 521 if (res) 522 panic("vga_raster_init_screen: attribute botch"); 523 #endif 524 525 vc->nscreens++; 526 LIST_INSERT_HEAD(&vc->screens, scr, next); 527 } 528 529 void 530 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, 531 bus_space_tag_t memt, int type, int quirks, 532 const struct vga_funcs *vf) 533 { 534 int console; 535 struct vga_config *vc; 536 struct wsemuldisplaydev_attach_args aa; 537 538 console = vga_is_console(iot, type); 539 540 if (console) { 541 vc = &vga_console_vc; 542 vga_console_attached = 1; 543 } else { 544 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK); 545 vga_raster_init(vc, iot, memt); 546 } 547 548 vc->vc_type = type; 549 vc->vc_funcs = vf; 550 551 sc->sc_vc = vc; 552 vc->softc = sc; 553 554 aa.console = console; 555 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); 556 aa.accessops = &vga_raster_accessops; 557 aa.accesscookie = vc; 558 559 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 560 } 561 562 int 563 vga_cndetach(void) 564 { 565 struct vga_config *vc; 566 struct vga_handle *vh; 567 568 vc = &vga_console_vc; 569 vh = &vc->hdl; 570 571 if (vgaconsole) { 572 bus_space_unmap(vh->vh_iot, vh->vh_ioh_vga, 0x10); 573 bus_space_unmap(vh->vh_iot, vh->vh_ioh_6845, 0x10); 574 575 return 1; 576 } 577 578 return 0; 579 } 580 581 int 582 vga_is_console(bus_space_tag_t iot, int type) 583 { 584 if (vgaconsole && 585 !vga_console_attached && 586 iot == vga_console_vc.hdl.vh_iot && 587 (vga_console_type == -1 || (type == vga_console_type))) 588 return (1); 589 return (0); 590 } 591 592 static int 593 vga_get_video(struct vga_config *vc) 594 { 595 596 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0; 597 } 598 599 static void 600 vga_set_video(struct vga_config *vc, int state) 601 { 602 int val; 603 604 vga_ts_write(&vc->hdl, syncreset, 0x01); 605 if (state) { /* unblank screen */ 606 val = vga_ts_read(&vc->hdl, mode); 607 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK); 608 #ifndef VGA_NO_VBLANK 609 val = vga_6845_read(&vc->hdl, mode); 610 vga_6845_write(&vc->hdl, mode, val | 0x80); 611 #endif 612 } else { /* blank screen */ 613 val = vga_ts_read(&vc->hdl, mode); 614 vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK); 615 #ifndef VGA_NO_VBLANK 616 val = vga_6845_read(&vc->hdl, mode); 617 vga_6845_write(&vc->hdl, mode, val & ~0x80); 618 #endif 619 } 620 vga_ts_write(&vc->hdl, syncreset, 0x03); 621 } 622 623 int 624 vga_raster_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 625 struct lwp *l) 626 { 627 struct vga_config *vc = v; 628 const struct vga_funcs *vf = vc->vc_funcs; 629 630 switch (cmd) { 631 case WSDISPLAYIO_GTYPE: 632 *(int *)data = vc->vc_type; 633 return 0; 634 635 case WSDISPLAYIO_GINFO: { 636 struct wsdisplay_fbinfo *fbi = data; 637 const struct wsscreen_descr *wd = vc->currenttype; 638 const struct videomode *vm = wd->modecookie; 639 fbi->width = vm->hdisplay; 640 fbi->height = vm->vdisplay; 641 fbi->depth = 24; /* xxx: ? */ 642 fbi->cmsize = 256; /* xxx: from palette */ 643 return 0; 644 } 645 646 case WSDISPLAYIO_GVIDEO: 647 *(int *)data = (vga_get_video(vc) ? 648 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); 649 return 0; 650 651 case WSDISPLAYIO_SVIDEO: 652 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 653 return 0; 654 655 case WSDISPLAYIO_GETCMAP: 656 case WSDISPLAYIO_PUTCMAP: 657 case WSDISPLAYIO_GCURPOS: 658 case WSDISPLAYIO_SCURPOS: 659 case WSDISPLAYIO_GCURMAX: 660 case WSDISPLAYIO_GCURSOR: 661 case WSDISPLAYIO_SCURSOR: 662 #ifdef DIAGNOSTIC 663 printf("%s: 0x%lx unsupported\n", __func__, cmd); 664 #endif 665 /* NONE of these operations are by the generic VGA driver. */ 666 return EPASSTHROUGH; 667 } 668 669 if (vc->vc_funcs == NULL) { 670 #ifdef DIAGNOSTIC 671 printf("%s: no vc_funcs\n", __func__); 672 #endif 673 return EPASSTHROUGH; 674 } 675 676 if (vf->vf_ioctl == NULL) { 677 #ifdef DIAGNOSTIC 678 printf("%s: no vf_ioctl\n", __func__); 679 #endif 680 return EPASSTHROUGH; 681 } 682 683 return ((*vf->vf_ioctl)(v, cmd, data, flag, l)); 684 } 685 686 static paddr_t 687 vga_raster_mmap(void *v, void *vs, off_t offset, int prot) 688 { 689 struct vga_config *vc = v; 690 const struct vga_funcs *vf = vc->vc_funcs; 691 692 if (vc->vc_funcs == NULL) 693 return (-1); 694 695 if (vf->vf_mmap == NULL) 696 return (-1); 697 698 return ((*vf->vf_mmap)(v, offset, prot)); 699 } 700 701 static int 702 vga_raster_alloc_screen(void *v, const struct wsscreen_descr *type, 703 void **cookiep, int *curxp, int *curyp, long *defattrp) 704 { 705 struct vga_config *vc = v; 706 struct vgascreen *scr; 707 708 if (vc->nscreens == 1) { 709 vc->screens.lh_first->mem = boot_scrmem; 710 } 711 712 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 713 vga_raster_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 714 715 if (vc->nscreens == 1) { 716 scr->active = 1; 717 vc->active = scr; 718 vc->currenttype = type; 719 } else { 720 scr->mem = malloc(sizeof(struct vga_scrmem) * 721 type->ncols * type->nrows, M_DEVBUF, M_WAITOK); 722 vga_raster_eraserows(scr, 0, type->nrows, *defattrp); 723 } 724 725 *cookiep = scr; 726 *curxp = scr->cursorcol; 727 *curyp = scr->cursorrow; 728 729 return (0); 730 } 731 732 static void 733 vga_raster_free_screen(void *v, void *cookie) 734 { 735 struct vgascreen *vs = cookie; 736 struct vga_config *vc = vs->cfg; 737 738 LIST_REMOVE(vs, next); 739 vc->nscreens--; 740 if (vs != &vga_console_screen) 741 free(vs, M_DEVBUF); 742 else 743 panic("vga_raster_free_screen: console"); 744 745 if (vc->active == vs) 746 vc->active = 0; 747 } 748 749 static int 750 vga_raster_show_screen(void *v, void *cookie, int waitok, 751 void (*cb)(void *, int, int), void *cbarg) 752 { 753 struct vgascreen *scr = cookie, *oldscr; 754 struct vga_config *vc = scr->cfg; 755 756 oldscr = vc->active; /* can be NULL! */ 757 if (scr == oldscr) { 758 return (0); 759 } 760 761 vc->wantedscreen = cookie; 762 vc->switchcb = cb; 763 vc->switchcbarg = cbarg; 764 if (cb) { 765 callout_reset(&vc->vc_switch_callout, 0, 766 (void(*)(void *))vga_switch_screen, vc); 767 return (EAGAIN); 768 } 769 770 vga_switch_screen(vc); 771 return (0); 772 } 773 774 static void 775 vga_switch_screen(struct vga_config *vc) 776 { 777 struct vgascreen *scr, *oldscr; 778 struct vga_handle *vh = &vc->hdl; 779 const struct wsscreen_descr *type; 780 781 scr = vc->wantedscreen; 782 if (!scr) { 783 printf("vga_switch_screen: disappeared\n"); 784 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 785 return; 786 } 787 type = scr->type; 788 oldscr = vc->active; /* can be NULL! */ 789 #ifdef DIAGNOSTIC 790 if (oldscr) { 791 if (!oldscr->active) 792 panic("vga_raster_show_screen: not active"); 793 if (oldscr->type != vc->currenttype) 794 panic("vga_raster_show_screen: bad type"); 795 } 796 #endif 797 if (scr == oldscr) { 798 return; 799 } 800 #ifdef DIAGNOSTIC 801 if (scr->active) 802 panic("vga_raster_show_screen: active"); 803 #endif 804 805 if (oldscr) 806 oldscr->active = 0; 807 808 if (vc->currenttype != type) { 809 vga_raster_setscreentype(vc, type); 810 vc->currenttype = type; 811 } 812 813 scr->dispoffset = scr->mindispoffset; 814 815 if (!oldscr || (scr->dispoffset != oldscr->dispoffset)) { 816 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 817 vga_6845_write(vh, startadrl, scr->dispoffset); 818 } 819 820 /* Clear the entire screen. */ 821 vga_gdc_write(vh, mode, 0x02); 822 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x2000); 823 824 scr->active = 1; 825 vga_restore_screen(scr, type, scr->mem); 826 827 vc->active = scr; 828 829 vga_raster_cursor(scr, scr->cursoron, scr->cursorrow, scr->cursorcol); 830 831 vc->wantedscreen = 0; 832 if (vc->switchcb) 833 (*vc->switchcb)(vc->switchcbarg, 0, 0); 834 } 835 836 static int 837 vga_raster_load_font(void *v, void *id, 838 struct wsdisplay_font *data) 839 { 840 /* XXX */ 841 printf("vga_raster_load_font: called\n"); 842 843 return (0); 844 } 845 846 static void 847 vga_raster_setup_font(struct vga_config *vc, struct vgascreen *scr) 848 { 849 struct vga_raster_font *vf; 850 struct wsdisplay_font *wf; 851 int cookie; 852 853 LIST_FOREACH(vf, &vc->vc_fontlist, next) { 854 if (wsfont_matches(vf->font, 0, 0, scr->type->fontheight, 0, 855 WSFONT_FIND_BITMAP)) { 856 scr->encoding = vf->font->encoding; 857 LIST_INSERT_HEAD(&scr->fontset, vf, next); 858 return; 859 } 860 } 861 862 cookie = wsfont_find(NULL, 0, scr->type->fontheight, 0, 863 WSDISPLAY_FONTORDER_L2R, 0, WSFONT_FIND_BITMAP); 864 if (cookie == -1) 865 return; 866 867 if (wsfont_lock(cookie, &wf)) 868 return; 869 870 vf = malloc(sizeof(struct vga_raster_font), M_DEVBUF, M_NOWAIT); 871 if (!vf) { 872 wsfont_unlock(cookie); 873 return; 874 } 875 876 vf->font = wf; 877 scr->encoding = vf->font->encoding; 878 LIST_INSERT_HEAD(&scr->fontset, vf, next); 879 } 880 881 static void 882 vga_setup_regs(struct videomode *mode, struct vga_moderegs *regs) 883 { 884 int i; 885 int depth = 4; /* XXXBJY hardcoded for now */ 886 const u_int8_t palette[] = { 887 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 888 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f 889 }; 890 891 /* 892 * Compute hsync and vsync polarity. 893 */ 894 if ((mode->flags & (VID_PHSYNC | VID_NHSYNC)) 895 && (mode->flags & (VID_PVSYNC | VID_NVSYNC))) { 896 regs->miscout = 0x23; 897 if (mode->flags & VID_NHSYNC) 898 regs->miscout |= 0x40; 899 if (mode->flags & VID_NVSYNC) 900 regs->miscout |= 0x80; 901 } else { 902 if (mode->flags & VID_DBLSCAN) 903 mode->vdisplay *= 2; 904 if (mode->vdisplay < 400) 905 regs->miscout = 0xa3; 906 else if (mode->vdisplay < 480) 907 regs->miscout = 0x63; 908 else if (mode->vdisplay < 768) 909 regs->miscout = 0xe3; 910 else 911 regs->miscout = 0x23; 912 } 913 914 /* 915 * Time sequencer 916 */ 917 if (depth == 4) 918 regs->ts[0] = 0x02; 919 else 920 regs->ts[0] = 0x00; 921 if (mode->flags & VID_CLKDIV2) 922 regs->ts[1] = 0x09; 923 else 924 regs->ts[1] = 0x01; 925 regs->ts[2] = 0x0f; 926 regs->ts[3] = 0x00; 927 if (depth < 8) 928 regs->ts[4] = 0x06; 929 else 930 regs->ts[4] = 0x0e; 931 932 /* 933 * CRTC controller 934 */ 935 regs->crtc[0] = (mode->htotal >> 3) - 5; 936 regs->crtc[1] = (mode->hdisplay >> 3) - 1; 937 regs->crtc[2] = (mode->hsync_start >> 3) - 1; 938 regs->crtc[3] = (((mode->hsync_end >> 3) - 1) & 0x1f) | 0x80; 939 regs->crtc[4] = mode->hsync_start >> 3; 940 regs->crtc[5] = ((((mode->hsync_end >> 3) - 1) & 0x20) << 2) 941 | (((mode->hsync_end >> 3)) & 0x1f); 942 regs->crtc[6] = (mode->vtotal - 2) & 0xff; 943 regs->crtc[7] = (((mode->vtotal - 2) & 0x100) >> 8) 944 | (((mode->vdisplay - 1) & 0x100) >> 7) 945 | ((mode->vsync_start & 0x100) >> 6) 946 | (((mode->vsync_start - 1) & 0x100) >> 5) 947 | 0x10 948 | (((mode->vtotal - 2) & 0x200) >> 4) 949 | (((mode->vdisplay - 1) & 0x200) >> 3) 950 | ((mode->vsync_start & 0x200) >> 2); 951 regs->crtc[8] = 0x00; 952 regs->crtc[9] = (((mode->vsync_start - 1) & 0x200) >> 4) | 0x40; 953 if (mode->flags & VID_DBLSCAN) 954 regs->crtc[9] |= 0x80; 955 regs->crtc[10] = 0x00; 956 regs->crtc[11] = 0x00; 957 regs->crtc[12] = 0x00; 958 regs->crtc[13] = 0x00; 959 regs->crtc[14] = 0x00; 960 regs->crtc[15] = 0x00; 961 regs->crtc[16] = mode->vsync_start & 0xff; 962 regs->crtc[17] = (mode->vsync_end & 0x0f) | 0x20; 963 regs->crtc[18] = (mode->vdisplay - 1) & 0xff; 964 regs->crtc[19] = mode->hdisplay >> 4; /* XXXBJY */ 965 regs->crtc[20] = 0x00; 966 regs->crtc[21] = (mode->vsync_start - 1) & 0xff; 967 regs->crtc[22] = (mode->vsync_end - 1) & 0xff; 968 if (depth < 8) 969 regs->crtc[23] = 0xe3; 970 else 971 regs->crtc[23] = 0xc3; 972 regs->crtc[24] = 0xff; 973 974 /* 975 * Graphics display controller 976 */ 977 regs->gdc[0] = 0x00; 978 regs->gdc[1] = 0x00; 979 regs->gdc[2] = 0x00; 980 regs->gdc[3] = 0x00; 981 regs->gdc[4] = 0x00; 982 if (depth == 4) 983 regs->gdc[5] = 0x02; 984 else 985 regs->gdc[5] = 0x40; 986 regs->gdc[6] = 0x01; 987 regs->gdc[7] = 0x0f; 988 regs->gdc[8] = 0xff; 989 990 /* 991 * Attribute controller 992 */ 993 /* Set palette registers. */ 994 for (i = 0; i < 16; i++) 995 regs->atc[i] = palette[i]; 996 if (depth == 4) 997 regs->atc[16] = 0x01; /* XXXBJY was 0x81 in XFree86 */ 998 else 999 regs->atc[16] = 0x41; 1000 regs->atc[17] = 0x00; /* XXXBJY just a guess */ 1001 regs->atc[18] = 0x0f; 1002 regs->atc[19] = 0x00; 1003 regs->atc[20] = 0x00; 1004 } 1005 1006 static void 1007 vga_set_mode(struct vga_handle *vh, struct vga_moderegs *regs) 1008 { 1009 int i; 1010 1011 /* Disable display. */ 1012 vga_ts_write(vh, mode, vga_ts_read(vh, mode) | VGA_TS_MODE_BLANK); 1013 1014 /* Write misc output register. */ 1015 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAW, 1016 regs->miscout); 1017 1018 /* Set synchronous reset. */ 1019 vga_ts_write(vh, syncreset, 0x01); 1020 vga_ts_write(vh, mode, regs->ts[1] | VGA_TS_MODE_BLANK); 1021 for (i = 2; i < VGA_TS_NREGS; i++) 1022 _vga_ts_write(vh, i, regs->ts[i]); 1023 /* Clear synchronous reset. */ 1024 vga_ts_write(vh, syncreset, 0x03); 1025 1026 /* Unprotect CRTC registers 0-7. */ 1027 vga_6845_write(vh, vsynce, vga_6845_read(vh, vsynce) & ~0x80); 1028 /* Write CRTC registers. */ 1029 for (i = 0; i < MC6845_NREGS; i++) 1030 _vga_6845_write(vh, i, regs->crtc[i]); 1031 1032 /* Write graphics display registers. */ 1033 for (i = 0; i < VGA_GDC_NREGS; i++) 1034 _vga_gdc_write(vh, i, regs->gdc[i]); 1035 1036 /* Write attribute controller registers. */ 1037 for (i = 0; i < VGA_ATC_NREGS; i++) 1038 _vga_attr_write(vh, i, regs->atc[i]); 1039 1040 /* Enable display. */ 1041 vga_ts_write(vh, mode, vga_ts_read(vh, mode) & ~VGA_TS_MODE_BLANK); 1042 } 1043 1044 static void 1045 vga_raster_cursor_init(struct vgascreen *scr, int existing) 1046 { 1047 struct vga_handle *vh = scr->hdl; 1048 bus_space_tag_t memt; 1049 bus_space_handle_t memh; 1050 int off; 1051 1052 if (existing) { 1053 /* 1054 * This is the first screen. At this point, scr->active is 1055 * false, so we can't use vga_raster_cursor() to do this. 1056 */ 1057 memt = vh->vh_memt; 1058 memh = vh->vh_memh; 1059 off = (scr->cursorrow * scr->type->ncols + scr->cursorcol) + 1060 scr->dispoffset / 8; 1061 1062 scr->cursortmp = scr->mem[off]; 1063 vga_raster_putchar(scr, scr->cursorrow, scr->cursorcol, 1064 scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); 1065 } else { 1066 scr->cursortmp.ch = 0; 1067 scr->cursortmp.attr = 0; 1068 scr->cursortmp.second = 0; 1069 scr->cursortmp.enc = scr->encoding; 1070 } 1071 1072 scr->cursoron = 1; 1073 } 1074 1075 static void 1076 vga_raster_cursor(void *id, int on, int row, int col) 1077 { 1078 struct vgascreen *scr = id; 1079 int off, tmp; 1080 1081 /* Remove old cursor image */ 1082 if (scr->cursoron) { 1083 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1084 if (scr->active) { 1085 tmp = scr->encoding; 1086 scr->encoding = scr->cursortmp.enc; 1087 if (scr->cursortmp.second) 1088 vga_raster_putchar(id, scr->cursorrow, 1089 scr->cursorcol - 1, scr->cursortmp.ch, 1090 scr->cursortmp.attr); 1091 else 1092 vga_raster_putchar(id, scr->cursorrow, 1093 scr->cursorcol, scr->cursortmp.ch, 1094 scr->cursortmp.attr); 1095 scr->encoding = tmp; 1096 } 1097 } 1098 1099 scr->cursorrow = row; 1100 scr->cursorcol = col; 1101 1102 if ((scr->cursoron = on) == 0) 1103 return; 1104 1105 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1106 scr->cursortmp = scr->mem[off]; 1107 if (scr->active) { 1108 tmp = scr->encoding; 1109 scr->encoding = scr->cursortmp.enc; 1110 if (scr->cursortmp.second) 1111 vga_raster_putchar(id, scr->cursorrow, 1112 scr->cursorcol - 1, scr->cursortmp.ch, 1113 scr->cursortmp.attr ^ 0x77); 1114 else 1115 vga_raster_putchar(id, scr->cursorrow, 1116 scr->cursorcol, scr->cursortmp.ch, 1117 scr->cursortmp.attr ^ 0x77); 1118 scr->encoding = tmp; 1119 } 1120 } 1121 1122 static int 1123 vga_raster_mapchar(void *id, int uni, u_int *index) 1124 { 1125 struct vgascreen *scr = id; 1126 1127 if (scr->encoding == WSDISPLAY_FONTENC_IBM) 1128 return pcdisplay_mapchar(id, uni, index); 1129 else { 1130 *index = uni; 1131 return 5; 1132 } 1133 } 1134 1135 static void 1136 vga_raster_putchar(void *id, int row, int col, u_int c, long attr) 1137 { 1138 struct vgascreen *scr = id; 1139 size_t off; 1140 struct vga_raster_font *fs; 1141 u_int tmp_ch; 1142 1143 off = row * scr->type->ncols + col; 1144 1145 if (__predict_false(off >= (scr->type->ncols * scr->type->nrows))) 1146 return; 1147 1148 LIST_FOREACH(fs, &scr->fontset, next) { 1149 if ((scr->encoding == fs->font->encoding) && 1150 (c >= fs->font->firstchar) && 1151 (c < fs->font->firstchar + fs->font->numchars) && 1152 (scr->type->fontheight == fs->font->fontheight)) { 1153 if (scr->active) { 1154 tmp_ch = c - fs->font->firstchar; 1155 _vga_raster_putchar(scr, row, col, tmp_ch, 1156 attr, fs); 1157 } 1158 1159 scr->mem[off].ch = c; 1160 scr->mem[off].attr = attr; 1161 scr->mem[off].second = 0; 1162 scr->mem[off].enc = fs->font->encoding; 1163 1164 if (fs->font->stride == 2) { 1165 scr->mem[off + 1].ch = c; 1166 scr->mem[off + 1].attr = attr; 1167 scr->mem[off + 1].second = 1; 1168 scr->mem[off + 1].enc = fs->font->encoding; 1169 } 1170 1171 return; 1172 } 1173 } 1174 1175 /* 1176 * No match found. 1177 */ 1178 if (scr->active) 1179 /* 1180 * Put a single width space character no matter what the 1181 * actual width of the character is. 1182 */ 1183 _vga_raster_putchar(scr, row, col, ' ', attr, 1184 &vga_console_fontset_ascii); 1185 scr->mem[off].ch = c; 1186 scr->mem[off].attr = attr; 1187 scr->mem[off].second = 0; 1188 scr->mem[off].enc = scr->encoding; 1189 } 1190 1191 static void 1192 _vga_raster_putchar(void *id, int row, int col, u_int c, long attr, 1193 struct vga_raster_font *fs) 1194 { 1195 struct vgascreen *scr = id; 1196 struct vga_handle *vh = scr->hdl; 1197 bus_space_tag_t memt = vh->vh_memt; 1198 bus_space_handle_t memh = vh->vh_memh; 1199 int i; 1200 int rasoff, rasoff2; 1201 int fheight = scr->type->fontheight; 1202 volatile u_int8_t dummy, pattern; 1203 u_int8_t fgcolor, bgcolor; 1204 1205 rasoff = scr->dispoffset + row * scr->type->ncols * fheight + col; 1206 rasoff2 = rasoff; 1207 1208 #if 0 1209 bgcolor = bgansitopc[attr >> 4]; 1210 fgcolor = fgansitopc[attr & 0x0f]; 1211 #else 1212 bgcolor = ((attr >> 4) & 0x0f); 1213 fgcolor = attr & 0x0f; 1214 #endif 1215 1216 if (fs->font->stride == 1) { 1217 /* Paint background. */ 1218 vga_gdc_write(vh, mode, 0x02); 1219 for (i = 0; i < fheight; i++) { 1220 bus_space_write_1(memt, memh, rasoff, bgcolor); 1221 rasoff += scr->type->ncols; 1222 } 1223 1224 /* Draw a single width character. */ 1225 vga_gdc_write(vh, mode, 0x03); 1226 vga_gdc_write(vh, setres, fgcolor); 1227 for (i = 0; i < fheight; i++) { 1228 pattern = ((u_int8_t *)fs->font->data)[c * fheight + i]; 1229 /* When pattern is 0, skip output for speed-up. */ 1230 if (pattern != 0) { 1231 dummy = bus_space_read_1(memt, memh, rasoff2); 1232 bus_space_write_1(memt, memh, rasoff2, pattern); 1233 } 1234 rasoff2 += scr->type->ncols; 1235 } 1236 } else if (fs->font->stride == 2) { 1237 /* Paint background. */ 1238 vga_gdc_write(vh, mode, 0x02); 1239 for (i = 0; i < fheight; i++) { 1240 bus_space_write_1(memt, memh, rasoff, bgcolor); 1241 bus_space_write_1(memt, memh, rasoff + 1, bgcolor); 1242 rasoff += scr->type->ncols; 1243 } 1244 1245 /* Draw a double width character. */ 1246 vga_gdc_write(vh, mode, 0x03); 1247 vga_gdc_write(vh, setres, fgcolor); 1248 for (i = 0; i < fheight; i++) { 1249 pattern = ((u_int8_t *)fs->font->data) 1250 [(c * fheight + i) * 2]; 1251 if (pattern != 0) { 1252 dummy = bus_space_read_1(memt, memh, rasoff2); 1253 bus_space_write_1(memt, memh, rasoff2, pattern); 1254 } 1255 pattern = ((u_int8_t *)fs->font->data) 1256 [(c * fheight + i) * 2 + 1]; 1257 if (pattern != 0) { 1258 rasoff2++; 1259 dummy = bus_space_read_1(memt, memh, rasoff2); 1260 bus_space_write_1(memt, memh, rasoff2, pattern); 1261 rasoff2--; 1262 } 1263 rasoff2 += scr->type->ncols; 1264 } 1265 } 1266 } 1267 1268 static void 1269 vga_raster_copycols(void *id, int row, int srccol, int dstcol, int ncols) 1270 { 1271 struct vgascreen *scr = id; 1272 struct vga_handle *vh = scr->hdl; 1273 bus_space_tag_t memt = vh->vh_memt; 1274 bus_space_handle_t memh = vh->vh_memh; 1275 bus_size_t srcoff, dstoff; 1276 bus_size_t rassrcoff, rasdstoff; 1277 int i; 1278 int fheight = scr->type->fontheight; 1279 1280 srcoff = row * scr->type->ncols + srccol; 1281 dstoff = row * scr->type->ncols + dstcol; 1282 rassrcoff = scr->dispoffset + row * scr->type->ncols * fheight + srccol; 1283 rasdstoff = scr->dispoffset + row * scr->type->ncols * fheight + dstcol; 1284 1285 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1286 ncols * sizeof(struct vga_scrmem)); 1287 1288 vga_gdc_write(vh, mode, 0x01); 1289 if (scr->active) { 1290 for (i = 0; i < fheight; i++) { 1291 bus_space_copy_region_1(memt, memh, 1292 rassrcoff + i * scr->type->ncols, memh, 1293 rasdstoff + i * scr->type->ncols, ncols); 1294 } 1295 } 1296 } 1297 1298 static void 1299 vga_raster_erasecols(void *id, int row, int startcol, int ncols, long fillattr) 1300 { 1301 struct vgascreen *scr = id; 1302 int i; 1303 1304 if (scr->active == 0) 1305 return; 1306 1307 for (i = startcol; i < startcol + ncols; i++) 1308 vga_raster_putchar(id, row, i, ' ', fillattr); 1309 } 1310 1311 static void 1312 vga_raster_copyrows(void *id, int srcrow, int dstrow, int nrows) 1313 { 1314 struct vgascreen *scr = id; 1315 struct vga_handle *vh = scr->hdl; 1316 bus_space_tag_t memt = vh->vh_memt; 1317 bus_space_handle_t memh = vh->vh_memh; 1318 int ncols; 1319 bus_size_t srcoff, dstoff; 1320 bus_size_t rassrcoff, rasdstoff; 1321 int fheight; 1322 1323 ncols = scr->type->ncols; 1324 fheight = scr->type->fontheight; 1325 1326 srcoff = srcrow * ncols; 1327 dstoff = dstrow * ncols; 1328 rassrcoff = srcoff * fheight; 1329 rasdstoff = dstoff * fheight; 1330 1331 if (scr->active) { 1332 vga_gdc_write(vh, mode, 0x01); 1333 if (dstrow == 0 && (srcrow + nrows == scr->type->nrows)) { 1334 int cursoron = scr->cursoron; 1335 1336 if (cursoron) 1337 /* Disable cursor. */ 1338 vga_raster_cursor(scr, 0, 1339 scr->cursorrow, scr->cursorcol); 1340 1341 /* scroll up whole screen */ 1342 if ((scr->dispoffset + srcrow * ncols * fheight) 1343 <= scr->maxdispoffset) 1344 scr->dispoffset += srcrow * ncols * fheight; 1345 else { 1346 bus_space_copy_region_1(memt, memh, 1347 scr->dispoffset + rassrcoff, 1348 memh, scr->mindispoffset, 1349 nrows * ncols * fheight); 1350 scr->dispoffset = scr->mindispoffset; 1351 } 1352 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 1353 vga_6845_write(vh, startadrl, scr->dispoffset); 1354 1355 if (cursoron) 1356 /* Enable cursor. */ 1357 vga_raster_cursor(scr, 1, scr->cursorrow, 1358 scr->cursorcol); 1359 } else 1360 bus_space_copy_region_1(memt, memh, 1361 scr->dispoffset + rassrcoff, memh, 1362 scr->dispoffset + rasdstoff, 1363 nrows * ncols * fheight); 1364 } 1365 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1366 nrows * ncols * sizeof(struct vga_scrmem)); 1367 } 1368 1369 static void 1370 vga_raster_eraserows(void *id, int startrow, int nrows, long fillattr) 1371 { 1372 struct vgascreen *scr = id; 1373 struct vga_handle *vh = scr->hdl; 1374 bus_space_tag_t memt = vh->vh_memt; 1375 bus_space_handle_t memh = vh->vh_memh; 1376 bus_size_t off, count; 1377 bus_size_t rasoff, rascount; 1378 int i; 1379 1380 off = startrow * scr->type->ncols; 1381 count = nrows * scr->type->ncols; 1382 rasoff = off * scr->type->fontheight; 1383 rascount = count * scr->type->fontheight; 1384 1385 if (scr->active) { 1386 u_int8_t bgcolor = (fillattr >> 4) & 0x0F; 1387 1388 /* Paint background. */ 1389 vga_gdc_write(vh, mode, 0x02); 1390 if (scr->type->ncols % 4 == 0) { 1391 u_int32_t fill = bgcolor | (bgcolor << 8) | 1392 (bgcolor << 16) | (bgcolor << 24); 1393 /* We can speed up I/O */ 1394 for (i = rasoff; i < rasoff + rascount; i += 4) 1395 bus_space_write_4(memt, memh, 1396 scr->dispoffset + i, fill); 1397 } else { 1398 u_int16_t fill = bgcolor | (bgcolor << 8); 1399 for (i = rasoff; i < rasoff + rascount; i += 2) 1400 bus_space_write_2(memt, memh, 1401 scr->dispoffset + i, fill); 1402 } 1403 } 1404 for (i = 0; i < count; i++) { 1405 scr->mem[off + i].ch = ' '; 1406 scr->mem[off + i].attr = fillattr; 1407 scr->mem[off + i].second = 0; 1408 scr->mem[off + i].enc = scr->encoding; 1409 } 1410 } 1411 1412 static int 1413 vga_raster_allocattr(void *id, int fg, int bg, int flags, long *attrp) 1414 { 1415 struct vgascreen *scr = id; 1416 struct vga_config *vc = scr->cfg; 1417 1418 if (__predict_false((unsigned int)fg >= sizeof(fgansitopc) || 1419 (unsigned int)bg >= sizeof(bgansitopc))) 1420 return (EINVAL); 1421 1422 if (vc->hdl.vh_mono) { 1423 if (flags & WSATTR_WSCOLORS) 1424 return (EINVAL); 1425 if (flags & WSATTR_REVERSE) 1426 *attrp = 0x70; 1427 else 1428 *attrp = 0x07; 1429 if (flags & WSATTR_UNDERLINE) 1430 *attrp |= FG_UNDERLINE; 1431 if (flags & WSATTR_HILIT) 1432 *attrp |= FG_INTENSE; 1433 } else { 1434 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1435 return (EINVAL); 1436 if (flags & WSATTR_WSCOLORS) 1437 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1438 else 1439 *attrp = 7; 1440 if (flags & WSATTR_HILIT) 1441 *attrp += 8; 1442 } 1443 if (flags & WSATTR_BLINK) 1444 *attrp |= FG_BLINK; 1445 return (0); 1446 } 1447 1448 static void 1449 vga_restore_screen(struct vgascreen *scr, 1450 const struct wsscreen_descr *type, struct vga_scrmem *mem) 1451 { 1452 int i, j, off, tmp; 1453 1454 tmp = scr->encoding; 1455 for (i = 0; i < type->nrows; i++) { 1456 for (j = 0; j < type->ncols; j++) { 1457 off = i * type->ncols + j; 1458 if (mem[off].second != 1) { 1459 scr->encoding = mem[off].enc; 1460 vga_raster_putchar(scr, i, j, mem[off].ch, 1461 mem[off].attr); 1462 } 1463 } 1464 } 1465 scr->encoding = tmp; 1466 } 1467 1468 static void 1469 vga_raster_setscreentype(struct vga_config *vc, 1470 const struct wsscreen_descr *type) 1471 { 1472 struct vga_handle *vh = &vc->hdl; 1473 struct vga_moderegs moderegs; 1474 1475 vga_setup_regs((struct videomode *)type->modecookie, &moderegs); 1476 vga_set_mode(vh, &moderegs); 1477 } 1478 1479 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1480 static void 1481 vga_raster_replaceattr(void *id, long oldattr, long newattr) 1482 { 1483 struct vgascreen *scr = id; 1484 const struct wsscreen_descr *type = scr->type; 1485 int off; 1486 1487 for (off = 0; off < type->nrows * type->ncols; off++) { 1488 if (scr->mem[off].attr == oldattr) 1489 scr->mem[off].attr = newattr; 1490 } 1491 1492 /* Repaint the whole screen, if needed */ 1493 if (scr->active) 1494 vga_restore_screen(scr, type, scr->mem); 1495 } 1496 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 1497 1498 void 1499 vga_resume(struct vga_softc *sc) 1500 { 1501 #ifdef VGA_RESET_ON_RESUME 1502 vga_initregs(&sc->sc_vc->hdl); 1503 #endif 1504 } 1505