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sys/dev/ic/vga_raster.c
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1 /* $NetBSD: vga_raster.c,v 1.50 2021/08/07 16:19:12 thorpej 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 1.50 2021/08/07 16:19:12 thorpej 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, 399 BUS_SPACE_MAP_CACHEABLE, &vh->vh_allmemh)) 400 panic("vga_init: couldn't map memory"); 401 402 if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh, 0, 0x10000, 403 &vh->vh_memh)) 404 panic("vga_raster_init: mem subrange failed"); 405 406 vc->nscreens = 0; 407 LIST_INIT(&vc->screens); 408 vc->active = NULL; 409 vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen; 410 callout_init(&vc->vc_switch_callout, 0); 411 412 wsfont_init(); 413 vc->nfonts = 1; 414 LIST_INIT(&vc->vc_fontlist); 415 vf = &vga_console_fontset_ascii; 416 if (vga_no_builtinfont) { 417 struct wsdisplay_font *wf; 418 int cookie; 419 420 /* prefer 8x16 pixel font */ 421 cookie = wsfont_find(NULL, 8, 16, 0, WSDISPLAY_FONTORDER_L2R, 422 0, WSFONT_FIND_BITMAP); 423 if (cookie == -1) 424 cookie = wsfont_find(NULL, 0, 0, 0, 425 WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R, 426 WSFONT_FIND_BITMAP); 427 if (cookie == -1 || wsfont_lock(cookie, &wf)) 428 panic("vga_raster_init: can't load console font"); 429 vf->font = wf; 430 } else { 431 vga_load_builtinfont(vh, builtinfont_data, 0, 256); 432 vf->font = &builtinfont; 433 } 434 LIST_INSERT_HEAD(&vc->vc_fontlist, vf, next); 435 } 436 437 static void 438 vga_raster_init_screen(struct vga_config *vc, struct vgascreen *scr, 439 const struct wsscreen_descr *type, int existing, long *attrp) 440 { 441 int cpos; 442 int res __diagused; 443 struct vga_handle *vh; 444 445 scr->cfg = vc; 446 scr->hdl = &vc->hdl; 447 scr->type = type; 448 scr->mindispoffset = 0; 449 scr->maxdispoffset = scr->dispoffset + 450 type->nrows * type->ncols * type->fontheight; 451 vh = &vc->hdl; 452 453 LIST_INIT(&scr->fontset); 454 vga_raster_setup_font(vc, scr); 455 456 if (existing) { 457 int i; 458 459 cpos = vga_6845_read(vh, cursorh) << 8; 460 cpos |= vga_6845_read(vh, cursorl); 461 462 /* make sure we have a valid cursor position */ 463 if (cpos < 0 || cpos >= type->nrows * type->ncols) 464 cpos = 0; 465 466 scr->dispoffset = vga_6845_read(vh, startadrh) << 9; 467 scr->dispoffset |= vga_6845_read(vh, startadrl) << 1; 468 469 /* make sure we have a valid memory offset */ 470 if (scr->dispoffset < scr->mindispoffset || 471 scr->dispoffset > scr->maxdispoffset) 472 scr->dispoffset = scr->mindispoffset; 473 474 scr->mem = boot_scrmem; 475 scr->active = 1; 476 477 /* Save the current screen to memory. XXXBJY assume 80x25 */ 478 for (i = 0; i < 80 * 25; i++) { 479 scr->mem[i].ch = bus_space_read_1(vh->vh_memt, 480 vh->vh_allmemh, 0x18000 + i * 2); 481 scr->mem[i].attr = bus_space_read_1(vh->vh_memt, 482 vh->vh_allmemh, 0x18000 + i * 2 + 1); 483 scr->mem[i].enc = scr->encoding; 484 } 485 486 vga_raster_setscreentype(vc, type); 487 488 /* Clear the entire screen. */ 489 vga_gdc_write(vh, mode, 0x02); 490 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 491 0x4000); 492 493 vga_restore_screen(scr, type, scr->mem); 494 } else { 495 cpos = 0; 496 scr->dispoffset = scr->mindispoffset; 497 scr->mem = NULL; 498 scr->active = 0; 499 } 500 501 scr->cursorrow = cpos / type->ncols; 502 scr->cursorcol = cpos % type->ncols; 503 vga_raster_cursor_init(scr, existing); 504 505 #ifdef __alpha__ 506 if (!vc->hdl.vh_mono) 507 /* 508 * DEC firmware uses a blue background. 509 */ 510 res = vga_raster_allocattr(scr, WSCOL_WHITE, WSCOL_BLUE, 511 WSATTR_WSCOLORS, attrp); 512 else 513 #endif 514 res = vga_raster_allocattr(scr, 0, 0, 0, attrp); 515 KASSERTMSG(res == 0, "attribute botch"); 516 517 vc->nscreens++; 518 LIST_INSERT_HEAD(&vc->screens, scr, next); 519 } 520 521 void 522 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, 523 bus_space_tag_t memt, int type, int quirks, 524 const struct vga_funcs *vf) 525 { 526 int console; 527 struct vga_config *vc; 528 struct wsemuldisplaydev_attach_args aa; 529 530 console = vga_is_console(iot, type); 531 532 if (console) { 533 vc = &vga_console_vc; 534 vga_console_attached = 1; 535 } else { 536 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK); 537 vga_raster_init(vc, iot, memt); 538 } 539 540 vc->vc_type = type; 541 vc->vc_funcs = vf; 542 543 sc->sc_vc = vc; 544 vc->softc = sc; 545 546 aa.console = console; 547 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); 548 aa.accessops = &vga_raster_accessops; 549 aa.accesscookie = vc; 550 551 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint, 552 CFARGS(.iattr = "wsemuldisplaydev")); 553 } 554 555 int 556 vga_cndetach(void) 557 { 558 struct vga_config *vc; 559 struct vga_handle *vh; 560 561 vc = &vga_console_vc; 562 vh = &vc->hdl; 563 564 if (vgaconsole) { 565 wsdisplay_cndetach(); 566 567 bus_space_unmap(vh->vh_iot, vh->vh_ioh_vga, 0x10); 568 bus_space_unmap(vh->vh_iot, vh->vh_ioh_6845, 0x10); 569 bus_space_unmap(vh->vh_memt, vh->vh_allmemh, 0x20000); 570 571 vga_console_attached = 0; 572 vgaconsole = 0; 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 struct wsdisplay_fbinfo *fbi = data; 636 const struct wsscreen_descr *wd = vc->currenttype; 637 const struct videomode *vm = wd->modecookie; 638 fbi->width = vm->hdisplay; 639 fbi->height = vm->vdisplay; 640 fbi->depth = 24; /* xxx: ? */ 641 fbi->cmsize = 256; /* xxx: from palette */ 642 return 0; 643 } 644 645 case WSDISPLAYIO_GVIDEO: 646 *(int *)data = (vga_get_video(vc) ? 647 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); 648 return 0; 649 650 case WSDISPLAYIO_SVIDEO: 651 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 652 return 0; 653 654 case WSDISPLAYIO_GETCMAP: 655 case WSDISPLAYIO_PUTCMAP: 656 case WSDISPLAYIO_GCURPOS: 657 case WSDISPLAYIO_SCURPOS: 658 case WSDISPLAYIO_GCURMAX: 659 case WSDISPLAYIO_GCURSOR: 660 case WSDISPLAYIO_SCURSOR: 661 #ifdef DIAGNOSTIC 662 printf("%s: 0x%lx unsupported\n", __func__, cmd); 663 #endif 664 /* NONE of these operations are by the generic VGA driver. */ 665 return EPASSTHROUGH; 666 } 667 668 if (vc->vc_funcs == NULL) { 669 #ifdef DIAGNOSTIC 670 printf("%s: no vc_funcs\n", __func__); 671 #endif 672 return EPASSTHROUGH; 673 } 674 675 if (vf->vf_ioctl == NULL) { 676 #ifdef DIAGNOSTIC 677 printf("%s: no vf_ioctl\n", __func__); 678 #endif 679 return EPASSTHROUGH; 680 } 681 682 return ((*vf->vf_ioctl)(v, cmd, data, flag, l)); 683 } 684 685 static paddr_t 686 vga_raster_mmap(void *v, void *vs, off_t offset, int prot) 687 { 688 struct vga_config *vc = v; 689 const struct vga_funcs *vf = vc->vc_funcs; 690 691 if (vc->vc_funcs == NULL) 692 return (-1); 693 694 if (vf->vf_mmap == NULL) 695 return (-1); 696 697 return ((*vf->vf_mmap)(v, offset, prot)); 698 } 699 700 static int 701 vga_raster_alloc_screen(void *v, const struct wsscreen_descr *type, 702 void **cookiep, int *curxp, int *curyp, long *defattrp) 703 { 704 struct vga_config *vc = v; 705 struct vgascreen *scr; 706 707 if (vc->nscreens == 1) { 708 vc->screens.lh_first->mem = boot_scrmem; 709 } 710 711 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 712 vga_raster_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 713 714 if (vc->nscreens == 1) { 715 scr->active = 1; 716 vc->active = scr; 717 vc->currenttype = type; 718 } else { 719 scr->mem = malloc(sizeof(struct vga_scrmem) * 720 type->ncols * type->nrows, M_DEVBUF, M_WAITOK); 721 vga_raster_eraserows(scr, 0, type->nrows, *defattrp); 722 } 723 724 *cookiep = scr; 725 *curxp = scr->cursorcol; 726 *curyp = scr->cursorrow; 727 728 return (0); 729 } 730 731 static void 732 vga_raster_free_screen(void *v, void *cookie) 733 { 734 struct vgascreen *vs = cookie; 735 struct vga_config *vc = vs->cfg; 736 737 LIST_REMOVE(vs, next); 738 vc->nscreens--; 739 if (vs != &vga_console_screen) 740 free(vs, M_DEVBUF); 741 else 742 panic("vga_raster_free_screen: console"); 743 744 if (vc->active == vs) 745 vc->active = 0; 746 } 747 748 static int 749 vga_raster_show_screen(void *v, void *cookie, int waitok, 750 void (*cb)(void *, int, int), void *cbarg) 751 { 752 struct vgascreen *scr = cookie, *oldscr; 753 struct vga_config *vc = scr->cfg; 754 755 oldscr = vc->active; /* can be NULL! */ 756 if (scr == oldscr) { 757 return (0); 758 } 759 760 vc->wantedscreen = cookie; 761 vc->switchcb = cb; 762 vc->switchcbarg = cbarg; 763 if (cb) { 764 callout_reset(&vc->vc_switch_callout, 0, 765 (void(*)(void *))vga_switch_screen, vc); 766 return (EAGAIN); 767 } 768 769 vga_switch_screen(vc); 770 return (0); 771 } 772 773 static void 774 vga_switch_screen(struct vga_config *vc) 775 { 776 struct vgascreen *scr, *oldscr; 777 struct vga_handle *vh = &vc->hdl; 778 const struct wsscreen_descr *type; 779 780 scr = vc->wantedscreen; 781 if (!scr) { 782 printf("vga_switch_screen: disappeared\n"); 783 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 784 return; 785 } 786 type = scr->type; 787 oldscr = vc->active; /* can be NULL! */ 788 #ifdef DIAGNOSTIC 789 if (oldscr) { 790 if (!oldscr->active) 791 panic("vga_raster_show_screen: not active"); 792 if (oldscr->type != vc->currenttype) 793 panic("vga_raster_show_screen: bad type"); 794 } 795 #endif 796 if (scr == oldscr) { 797 return; 798 } 799 #ifdef DIAGNOSTIC 800 if (scr->active) 801 panic("vga_raster_show_screen: active"); 802 #endif 803 804 if (oldscr) 805 oldscr->active = 0; 806 807 if (vc->currenttype != type) { 808 vga_raster_setscreentype(vc, type); 809 vc->currenttype = type; 810 } 811 812 scr->dispoffset = scr->mindispoffset; 813 814 if (!oldscr || (scr->dispoffset != oldscr->dispoffset)) { 815 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 816 vga_6845_write(vh, startadrl, scr->dispoffset); 817 } 818 819 /* Clear the entire screen. */ 820 vga_gdc_write(vh, mode, 0x02); 821 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x2000); 822 823 scr->active = 1; 824 vga_restore_screen(scr, type, scr->mem); 825 826 vc->active = scr; 827 828 vga_raster_cursor(scr, scr->cursoron, scr->cursorrow, scr->cursorcol); 829 830 vc->wantedscreen = 0; 831 if (vc->switchcb) 832 (*vc->switchcb)(vc->switchcbarg, 0, 0); 833 } 834 835 static int 836 vga_raster_load_font(void *v, void *id, 837 struct wsdisplay_font *data) 838 { 839 /* XXX */ 840 printf("vga_raster_load_font: called\n"); 841 842 return (0); 843 } 844 845 static void 846 vga_raster_setup_font(struct vga_config *vc, struct vgascreen *scr) 847 { 848 struct vga_raster_font *vf; 849 struct wsdisplay_font *wf; 850 int cookie; 851 852 LIST_FOREACH(vf, &vc->vc_fontlist, next) { 853 if (wsfont_matches(vf->font, 0, 0, scr->type->fontheight, 0, 854 WSFONT_FIND_BITMAP)) { 855 scr->encoding = vf->font->encoding; 856 LIST_INSERT_HEAD(&scr->fontset, vf, next); 857 return; 858 } 859 } 860 861 cookie = wsfont_find(NULL, 0, scr->type->fontheight, 0, 862 WSDISPLAY_FONTORDER_L2R, 0, WSFONT_FIND_BITMAP); 863 if (cookie == -1) 864 return; 865 866 if (wsfont_lock(cookie, &wf)) 867 return; 868 869 vf = malloc(sizeof(struct vga_raster_font), M_DEVBUF, M_WAITOK); 870 vf->font = wf; 871 scr->encoding = vf->font->encoding; 872 LIST_INSERT_HEAD(&scr->fontset, vf, next); 873 } 874 875 static void 876 vga_setup_regs(struct videomode *mode, struct vga_moderegs *regs) 877 { 878 int i; 879 int depth = 4; /* XXXBJY hardcoded for now */ 880 const u_int8_t palette[] = { 881 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 882 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f 883 }; 884 885 /* 886 * Compute hsync and vsync polarity. 887 */ 888 if ((mode->flags & (VID_PHSYNC | VID_NHSYNC)) 889 && (mode->flags & (VID_PVSYNC | VID_NVSYNC))) { 890 regs->miscout = 0x23; 891 if (mode->flags & VID_NHSYNC) 892 regs->miscout |= 0x40; 893 if (mode->flags & VID_NVSYNC) 894 regs->miscout |= 0x80; 895 } else { 896 if (mode->flags & VID_DBLSCAN) 897 mode->vdisplay *= 2; 898 if (mode->vdisplay < 400) 899 regs->miscout = 0xa3; 900 else if (mode->vdisplay < 480) 901 regs->miscout = 0x63; 902 else if (mode->vdisplay < 768) 903 regs->miscout = 0xe3; 904 else 905 regs->miscout = 0x23; 906 } 907 908 /* 909 * Time sequencer 910 */ 911 if (depth == 4) 912 regs->ts[0] = 0x02; 913 else 914 regs->ts[0] = 0x00; 915 if (mode->flags & VID_CLKDIV2) 916 regs->ts[1] = 0x09; 917 else 918 regs->ts[1] = 0x01; 919 regs->ts[2] = 0x0f; 920 regs->ts[3] = 0x00; 921 if (depth < 8) 922 regs->ts[4] = 0x06; 923 else 924 regs->ts[4] = 0x0e; 925 926 /* 927 * CRTC controller 928 */ 929 regs->crtc[0] = (mode->htotal >> 3) - 5; 930 regs->crtc[1] = (mode->hdisplay >> 3) - 1; 931 regs->crtc[2] = (mode->hsync_start >> 3) - 1; 932 regs->crtc[3] = (((mode->hsync_end >> 3) - 1) & 0x1f) | 0x80; 933 regs->crtc[4] = mode->hsync_start >> 3; 934 regs->crtc[5] = ((((mode->hsync_end >> 3) - 1) & 0x20) << 2) 935 | (((mode->hsync_end >> 3)) & 0x1f); 936 regs->crtc[6] = (mode->vtotal - 2) & 0xff; 937 regs->crtc[7] = (((mode->vtotal - 2) & 0x100) >> 8) 938 | (((mode->vdisplay - 1) & 0x100) >> 7) 939 | ((mode->vsync_start & 0x100) >> 6) 940 | (((mode->vsync_start - 1) & 0x100) >> 5) 941 | 0x10 942 | (((mode->vtotal - 2) & 0x200) >> 4) 943 | (((mode->vdisplay - 1) & 0x200) >> 3) 944 | ((mode->vsync_start & 0x200) >> 2); 945 regs->crtc[8] = 0x00; 946 regs->crtc[9] = (((mode->vsync_start - 1) & 0x200) >> 4) | 0x40; 947 if (mode->flags & VID_DBLSCAN) 948 regs->crtc[9] |= 0x80; 949 regs->crtc[10] = 0x00; 950 regs->crtc[11] = 0x00; 951 regs->crtc[12] = 0x00; 952 regs->crtc[13] = 0x00; 953 regs->crtc[14] = 0x00; 954 regs->crtc[15] = 0x00; 955 regs->crtc[16] = mode->vsync_start & 0xff; 956 regs->crtc[17] = (mode->vsync_end & 0x0f) | 0x20; 957 regs->crtc[18] = (mode->vdisplay - 1) & 0xff; 958 regs->crtc[19] = mode->hdisplay >> 4; /* XXXBJY */ 959 regs->crtc[20] = 0x00; 960 regs->crtc[21] = (mode->vsync_start - 1) & 0xff; 961 regs->crtc[22] = (mode->vsync_end - 1) & 0xff; 962 if (depth < 8) 963 regs->crtc[23] = 0xe3; 964 else 965 regs->crtc[23] = 0xc3; 966 regs->crtc[24] = 0xff; 967 968 /* 969 * Graphics display controller 970 */ 971 regs->gdc[0] = 0x00; 972 regs->gdc[1] = 0x00; 973 regs->gdc[2] = 0x00; 974 regs->gdc[3] = 0x00; 975 regs->gdc[4] = 0x00; 976 if (depth == 4) 977 regs->gdc[5] = 0x02; 978 else 979 regs->gdc[5] = 0x40; 980 regs->gdc[6] = 0x01; 981 regs->gdc[7] = 0x0f; 982 regs->gdc[8] = 0xff; 983 984 /* 985 * Attribute controller 986 */ 987 /* Set palette registers. */ 988 for (i = 0; i < 16; i++) 989 regs->atc[i] = palette[i]; 990 if (depth == 4) 991 regs->atc[16] = 0x01; /* XXXBJY was 0x81 in XFree86 */ 992 else 993 regs->atc[16] = 0x41; 994 regs->atc[17] = 0x00; /* XXXBJY just a guess */ 995 regs->atc[18] = 0x0f; 996 regs->atc[19] = 0x00; 997 regs->atc[20] = 0x00; 998 } 999 1000 static void 1001 vga_set_mode(struct vga_handle *vh, struct vga_moderegs *regs) 1002 { 1003 int i; 1004 1005 /* Disable display. */ 1006 vga_ts_write(vh, mode, vga_ts_read(vh, mode) | VGA_TS_MODE_BLANK); 1007 1008 /* Write misc output register. */ 1009 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAW, 1010 regs->miscout); 1011 1012 /* Set synchronous reset. */ 1013 vga_ts_write(vh, syncreset, 0x01); 1014 vga_ts_write(vh, mode, regs->ts[1] | VGA_TS_MODE_BLANK); 1015 for (i = 2; i < VGA_TS_NREGS; i++) 1016 _vga_ts_write(vh, i, regs->ts[i]); 1017 /* Clear synchronous reset. */ 1018 vga_ts_write(vh, syncreset, 0x03); 1019 1020 /* Unprotect CRTC registers 0-7. */ 1021 vga_6845_write(vh, vsynce, vga_6845_read(vh, vsynce) & ~0x80); 1022 /* Write CRTC registers. */ 1023 for (i = 0; i < MC6845_NREGS; i++) 1024 _vga_6845_write(vh, i, regs->crtc[i]); 1025 1026 /* Write graphics display registers. */ 1027 for (i = 0; i < VGA_GDC_NREGS; i++) 1028 _vga_gdc_write(vh, i, regs->gdc[i]); 1029 1030 /* Write attribute controller registers. */ 1031 for (i = 0; i < VGA_ATC_NREGS; i++) 1032 _vga_attr_write(vh, i, regs->atc[i]); 1033 1034 /* Enable display. */ 1035 vga_ts_write(vh, mode, vga_ts_read(vh, mode) & ~VGA_TS_MODE_BLANK); 1036 } 1037 1038 static void 1039 vga_raster_cursor_init(struct vgascreen *scr, int existing) 1040 { 1041 int off; 1042 1043 if (existing) { 1044 /* 1045 * This is the first screen. At this point, scr->active is 1046 * false, so we can't use vga_raster_cursor() to do this. 1047 */ 1048 off = (scr->cursorrow * scr->type->ncols + scr->cursorcol) + 1049 scr->dispoffset / 8; 1050 1051 scr->cursortmp = scr->mem[off]; 1052 vga_raster_putchar(scr, scr->cursorrow, scr->cursorcol, 1053 scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); 1054 } else { 1055 scr->cursortmp.ch = 0; 1056 scr->cursortmp.attr = 0; 1057 scr->cursortmp.second = 0; 1058 scr->cursortmp.enc = scr->encoding; 1059 } 1060 1061 scr->cursoron = 1; 1062 } 1063 1064 static void 1065 vga_raster_cursor(void *id, int on, int row, int col) 1066 { 1067 struct vgascreen *scr = id; 1068 int off, tmp; 1069 1070 /* Remove old cursor image */ 1071 if (scr->cursoron) { 1072 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1073 if (scr->active) { 1074 tmp = scr->encoding; 1075 scr->encoding = scr->cursortmp.enc; 1076 if (scr->cursortmp.second) 1077 vga_raster_putchar(id, scr->cursorrow, 1078 scr->cursorcol - 1, scr->cursortmp.ch, 1079 scr->cursortmp.attr); 1080 else 1081 vga_raster_putchar(id, scr->cursorrow, 1082 scr->cursorcol, scr->cursortmp.ch, 1083 scr->cursortmp.attr); 1084 scr->encoding = tmp; 1085 } 1086 } 1087 1088 scr->cursorrow = row; 1089 scr->cursorcol = col; 1090 1091 if ((scr->cursoron = on) == 0) 1092 return; 1093 1094 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1095 scr->cursortmp = scr->mem[off]; 1096 if (scr->active) { 1097 tmp = scr->encoding; 1098 scr->encoding = scr->cursortmp.enc; 1099 if (scr->cursortmp.second) 1100 vga_raster_putchar(id, scr->cursorrow, 1101 scr->cursorcol - 1, scr->cursortmp.ch, 1102 scr->cursortmp.attr ^ 0x77); 1103 else 1104 vga_raster_putchar(id, scr->cursorrow, 1105 scr->cursorcol, scr->cursortmp.ch, 1106 scr->cursortmp.attr ^ 0x77); 1107 scr->encoding = tmp; 1108 } 1109 } 1110 1111 static int 1112 vga_raster_mapchar(void *id, int uni, u_int *index) 1113 { 1114 struct vgascreen *scr = id; 1115 1116 if (scr->encoding == WSDISPLAY_FONTENC_IBM) 1117 return pcdisplay_mapchar(id, uni, index); 1118 else { 1119 *index = uni; 1120 return 5; 1121 } 1122 } 1123 1124 static void 1125 vga_raster_putchar(void *id, int row, int col, u_int c, long attr) 1126 { 1127 struct vgascreen *scr = id; 1128 size_t off; 1129 struct vga_raster_font *fs; 1130 u_int tmp_ch; 1131 1132 off = row * scr->type->ncols + col; 1133 1134 if (__predict_false(off >= (scr->type->ncols * scr->type->nrows))) 1135 return; 1136 1137 LIST_FOREACH(fs, &scr->fontset, next) { 1138 if ((scr->encoding == fs->font->encoding) && 1139 (c >= fs->font->firstchar) && 1140 (c < fs->font->firstchar + fs->font->numchars) && 1141 (scr->type->fontheight == fs->font->fontheight)) { 1142 if (scr->active) { 1143 tmp_ch = c - fs->font->firstchar; 1144 _vga_raster_putchar(scr, row, col, tmp_ch, 1145 attr, fs); 1146 } 1147 1148 scr->mem[off].ch = c; 1149 scr->mem[off].attr = attr; 1150 scr->mem[off].second = 0; 1151 scr->mem[off].enc = fs->font->encoding; 1152 1153 if (fs->font->stride == 2) { 1154 scr->mem[off + 1].ch = c; 1155 scr->mem[off + 1].attr = attr; 1156 scr->mem[off + 1].second = 1; 1157 scr->mem[off + 1].enc = fs->font->encoding; 1158 } 1159 1160 return; 1161 } 1162 } 1163 1164 /* 1165 * No match found. 1166 */ 1167 if (scr->active) 1168 /* 1169 * Put a single width space character no matter what the 1170 * actual width of the character is. 1171 */ 1172 _vga_raster_putchar(scr, row, col, ' ', attr, 1173 &vga_console_fontset_ascii); 1174 scr->mem[off].ch = c; 1175 scr->mem[off].attr = attr; 1176 scr->mem[off].second = 0; 1177 scr->mem[off].enc = scr->encoding; 1178 } 1179 1180 static void 1181 _vga_raster_putchar(void *id, int row, int col, u_int c, long attr, 1182 struct vga_raster_font *fs) 1183 { 1184 struct vgascreen *scr = id; 1185 struct vga_handle *vh = scr->hdl; 1186 bus_space_tag_t memt = vh->vh_memt; 1187 bus_space_handle_t memh = vh->vh_memh; 1188 int i; 1189 int rasoff, rasoff2; 1190 int fheight = scr->type->fontheight; 1191 volatile u_int8_t pattern; 1192 u_int8_t fgcolor, bgcolor; 1193 1194 rasoff = scr->dispoffset + row * scr->type->ncols * fheight + col; 1195 rasoff2 = rasoff; 1196 1197 #if 0 1198 bgcolor = bgansitopc[attr >> 4]; 1199 fgcolor = fgansitopc[attr & 0x0f]; 1200 #else 1201 bgcolor = ((attr >> 4) & 0x0f); 1202 fgcolor = attr & 0x0f; 1203 #endif 1204 1205 if (fs->font->stride == 1) { 1206 /* Paint background. */ 1207 vga_gdc_write(vh, mode, 0x02); 1208 for (i = 0; i < fheight; i++) { 1209 bus_space_write_1(memt, memh, rasoff, bgcolor); 1210 rasoff += scr->type->ncols; 1211 } 1212 1213 /* Draw a single width character. */ 1214 vga_gdc_write(vh, mode, 0x03); 1215 vga_gdc_write(vh, setres, fgcolor); 1216 for (i = 0; i < fheight; i++) { 1217 pattern = ((u_int8_t *)fs->font->data)[c * fheight + i]; 1218 /* When pattern is 0, skip output for speed-up. */ 1219 if (pattern != 0) { 1220 bus_space_read_1(memt, memh, rasoff2); 1221 bus_space_write_1(memt, memh, rasoff2, pattern); 1222 } 1223 rasoff2 += scr->type->ncols; 1224 } 1225 } else if (fs->font->stride == 2) { 1226 /* Paint background. */ 1227 vga_gdc_write(vh, mode, 0x02); 1228 for (i = 0; i < fheight; i++) { 1229 bus_space_write_1(memt, memh, rasoff, bgcolor); 1230 bus_space_write_1(memt, memh, rasoff + 1, bgcolor); 1231 rasoff += scr->type->ncols; 1232 } 1233 1234 /* Draw a double width character. */ 1235 vga_gdc_write(vh, mode, 0x03); 1236 vga_gdc_write(vh, setres, fgcolor); 1237 for (i = 0; i < fheight; i++) { 1238 pattern = ((u_int8_t *)fs->font->data) 1239 [(c * fheight + i) * 2]; 1240 if (pattern != 0) { 1241 bus_space_read_1(memt, memh, rasoff2); 1242 bus_space_write_1(memt, memh, rasoff2, pattern); 1243 } 1244 pattern = ((u_int8_t *)fs->font->data) 1245 [(c * fheight + i) * 2 + 1]; 1246 if (pattern != 0) { 1247 rasoff2++; 1248 bus_space_read_1(memt, memh, rasoff2); 1249 bus_space_write_1(memt, memh, rasoff2, pattern); 1250 rasoff2--; 1251 } 1252 rasoff2 += scr->type->ncols; 1253 } 1254 } 1255 } 1256 1257 static void 1258 vga_raster_copycols(void *id, int row, int srccol, int dstcol, int ncols) 1259 { 1260 struct vgascreen *scr = id; 1261 struct vga_handle *vh = scr->hdl; 1262 bus_space_tag_t memt = vh->vh_memt; 1263 bus_space_handle_t memh = vh->vh_memh; 1264 bus_size_t srcoff, dstoff; 1265 bus_size_t rassrcoff, rasdstoff; 1266 int i; 1267 int fheight = scr->type->fontheight; 1268 1269 srcoff = row * scr->type->ncols + srccol; 1270 dstoff = row * scr->type->ncols + dstcol; 1271 rassrcoff = scr->dispoffset + row * scr->type->ncols * fheight + srccol; 1272 rasdstoff = scr->dispoffset + row * scr->type->ncols * fheight + dstcol; 1273 1274 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1275 ncols * sizeof(struct vga_scrmem)); 1276 1277 vga_gdc_write(vh, mode, 0x01); 1278 if (scr->active) { 1279 for (i = 0; i < fheight; i++) { 1280 bus_space_copy_region_1(memt, memh, 1281 rassrcoff + i * scr->type->ncols, memh, 1282 rasdstoff + i * scr->type->ncols, ncols); 1283 } 1284 } 1285 } 1286 1287 static void 1288 vga_raster_erasecols(void *id, int row, int startcol, int ncols, long fillattr) 1289 { 1290 struct vgascreen *scr = id; 1291 int i; 1292 1293 if (scr->active == 0) 1294 return; 1295 1296 for (i = startcol; i < startcol + ncols; i++) 1297 vga_raster_putchar(id, row, i, ' ', fillattr); 1298 } 1299 1300 static void 1301 vga_raster_copyrows(void *id, int srcrow, int dstrow, int nrows) 1302 { 1303 struct vgascreen *scr = id; 1304 struct vga_handle *vh = scr->hdl; 1305 bus_space_tag_t memt = vh->vh_memt; 1306 bus_space_handle_t memh = vh->vh_memh; 1307 int ncols; 1308 bus_size_t srcoff, dstoff; 1309 bus_size_t rassrcoff, rasdstoff; 1310 int fheight; 1311 1312 ncols = scr->type->ncols; 1313 fheight = scr->type->fontheight; 1314 1315 srcoff = srcrow * ncols; 1316 dstoff = dstrow * ncols; 1317 rassrcoff = srcoff * fheight; 1318 rasdstoff = dstoff * fheight; 1319 1320 if (scr->active) { 1321 vga_gdc_write(vh, mode, 0x01); 1322 if (dstrow == 0 && (srcrow + nrows == scr->type->nrows)) { 1323 int cursoron = scr->cursoron; 1324 1325 if (cursoron) 1326 /* Disable cursor. */ 1327 vga_raster_cursor(scr, 0, 1328 scr->cursorrow, scr->cursorcol); 1329 1330 /* scroll up whole screen */ 1331 if ((scr->dispoffset + srcrow * ncols * fheight) 1332 <= scr->maxdispoffset) 1333 scr->dispoffset += srcrow * ncols * fheight; 1334 else { 1335 bus_space_copy_region_1(memt, memh, 1336 scr->dispoffset + rassrcoff, 1337 memh, scr->mindispoffset, 1338 nrows * ncols * fheight); 1339 scr->dispoffset = scr->mindispoffset; 1340 } 1341 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 1342 vga_6845_write(vh, startadrl, scr->dispoffset); 1343 1344 if (cursoron) 1345 /* Enable cursor. */ 1346 vga_raster_cursor(scr, 1, scr->cursorrow, 1347 scr->cursorcol); 1348 } else 1349 bus_space_copy_region_1(memt, memh, 1350 scr->dispoffset + rassrcoff, memh, 1351 scr->dispoffset + rasdstoff, 1352 nrows * ncols * fheight); 1353 } 1354 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1355 nrows * ncols * sizeof(struct vga_scrmem)); 1356 } 1357 1358 static void 1359 vga_raster_eraserows(void *id, int startrow, int nrows, long fillattr) 1360 { 1361 struct vgascreen *scr = id; 1362 struct vga_handle *vh = scr->hdl; 1363 bus_space_tag_t memt = vh->vh_memt; 1364 bus_space_handle_t memh = vh->vh_memh; 1365 bus_size_t off, count; 1366 bus_size_t rasoff, rascount; 1367 int i; 1368 1369 off = startrow * scr->type->ncols; 1370 count = nrows * scr->type->ncols; 1371 rasoff = off * scr->type->fontheight; 1372 rascount = count * scr->type->fontheight; 1373 1374 if (scr->active) { 1375 u_int8_t bgcolor = (fillattr >> 4) & 0x0F; 1376 1377 /* Paint background. */ 1378 vga_gdc_write(vh, mode, 0x02); 1379 if (scr->type->ncols % 4 == 0) { 1380 u_int32_t fill = bgcolor | (bgcolor << 8) | 1381 (bgcolor << 16) | (bgcolor << 24); 1382 /* We can speed up I/O */ 1383 for (i = rasoff; i < rasoff + rascount; i += 4) 1384 bus_space_write_4(memt, memh, 1385 scr->dispoffset + i, fill); 1386 } else { 1387 u_int16_t fill = bgcolor | (bgcolor << 8); 1388 for (i = rasoff; i < rasoff + rascount; i += 2) 1389 bus_space_write_2(memt, memh, 1390 scr->dispoffset + i, fill); 1391 } 1392 } 1393 for (i = 0; i < count; i++) { 1394 scr->mem[off + i].ch = ' '; 1395 scr->mem[off + i].attr = fillattr; 1396 scr->mem[off + i].second = 0; 1397 scr->mem[off + i].enc = scr->encoding; 1398 } 1399 } 1400 1401 static int 1402 vga_raster_allocattr(void *id, int fg, int bg, int flags, long *attrp) 1403 { 1404 struct vgascreen *scr = id; 1405 struct vga_config *vc = scr->cfg; 1406 1407 if (__predict_false((unsigned int)fg >= sizeof(fgansitopc) || 1408 (unsigned int)bg >= sizeof(bgansitopc))) 1409 return (EINVAL); 1410 1411 if (vc->hdl.vh_mono) { 1412 if (flags & WSATTR_WSCOLORS) 1413 return (EINVAL); 1414 if (flags & WSATTR_REVERSE) 1415 *attrp = 0x70; 1416 else 1417 *attrp = 0x07; 1418 if (flags & WSATTR_UNDERLINE) 1419 *attrp |= FG_UNDERLINE; 1420 if (flags & WSATTR_HILIT) 1421 *attrp |= FG_INTENSE; 1422 } else { 1423 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1424 return (EINVAL); 1425 if (flags & WSATTR_WSCOLORS) 1426 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1427 else 1428 *attrp = 7; 1429 if (flags & WSATTR_HILIT) 1430 *attrp += 8; 1431 } 1432 if (flags & WSATTR_BLINK) 1433 *attrp |= FG_BLINK; 1434 return (0); 1435 } 1436 1437 static void 1438 vga_restore_screen(struct vgascreen *scr, 1439 const struct wsscreen_descr *type, struct vga_scrmem *mem) 1440 { 1441 int i, j, off, tmp; 1442 1443 tmp = scr->encoding; 1444 for (i = 0; i < type->nrows; i++) { 1445 for (j = 0; j < type->ncols; j++) { 1446 off = i * type->ncols + j; 1447 if (mem[off].second != 1) { 1448 scr->encoding = mem[off].enc; 1449 vga_raster_putchar(scr, i, j, mem[off].ch, 1450 mem[off].attr); 1451 } 1452 } 1453 } 1454 scr->encoding = tmp; 1455 } 1456 1457 static void 1458 vga_raster_setscreentype(struct vga_config *vc, 1459 const struct wsscreen_descr *type) 1460 { 1461 struct vga_handle *vh = &vc->hdl; 1462 struct vga_moderegs moderegs; 1463 1464 vga_setup_regs((struct videomode *)type->modecookie, &moderegs); 1465 vga_set_mode(vh, &moderegs); 1466 } 1467 1468 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1469 static void 1470 vga_raster_replaceattr(void *id, long oldattr, long newattr) 1471 { 1472 struct vgascreen *scr = id; 1473 const struct wsscreen_descr *type = scr->type; 1474 int off; 1475 1476 for (off = 0; off < type->nrows * type->ncols; off++) { 1477 if (scr->mem[off].attr == oldattr) 1478 scr->mem[off].attr = newattr; 1479 } 1480 1481 /* Repaint the whole screen, if needed */ 1482 if (scr->active) 1483 vga_restore_screen(scr, type, scr->mem); 1484 } 1485 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 1486 1487 void 1488 vga_resume(struct vga_softc *sc) 1489 { 1490 #ifdef VGA_RESET_ON_RESUME 1491 vga_initregs(&sc->sc_vc->hdl); 1492 #endif 1493 }
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