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sys/dev/ic/vga_raster.c
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1 /* $NetBSD: vga_raster.c,v 1.25.2.1 2007/07/30 12:40:49 liamjfoy 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 1.25.2.1 2007/07/30 12:40:49 liamjfoy 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 <machine/bus.h> 71 72 #include <dev/ic/mc6845reg.h> 73 #include <dev/ic/pcdisplayvar.h> 74 #include <dev/ic/vgareg.h> 75 #include <dev/ic/vgavar.h> 76 #include <dev/ic/videomode.h> 77 78 #include <dev/wscons/wsdisplayvar.h> 79 #include <dev/wscons/wsconsio.h> 80 #include <dev/wsfont/wsfont.h> 81 82 #include <dev/ic/pcdisplay.h> 83 84 int vga_no_builtinfont = 0; 85 86 u_int8_t builtinfont_data[256 * 16]; 87 88 struct wsdisplay_font builtinfont = { 89 "builtin", /* typeface name */ 90 0, /* firstchar */ 91 256, /* numchars */ 92 WSDISPLAY_FONTENC_IBM, /* encoding */ 93 8, /* width */ 94 16, /* height */ 95 1, /* stride */ 96 WSDISPLAY_FONTORDER_L2R, /* bit order */ 97 WSDISPLAY_FONTORDER_L2R, /* byte order */ 98 builtinfont_data /* data */ 99 }; 100 101 struct vga_scrmem { 102 u_int16_t ch; 103 u_int8_t attr; 104 u_int8_t second; /* XXXBJY should be u_int8_t len; */ 105 u_int8_t enc; 106 }; 107 108 #ifdef VGA_CONSOLE_SCREENTYPE 109 #define VGA_SCRMEM_SIZE (80 * 30) 110 #else 111 #define VGA_SCRMEM_SIZE (80 * 25) 112 #endif 113 114 struct vga_scrmem boot_scrmem[VGA_SCRMEM_SIZE]; 115 116 struct vga_raster_font { 117 LIST_ENTRY(vga_raster_font) next; 118 struct wsdisplay_font *font; 119 }; 120 121 struct vgascreen { 122 LIST_ENTRY(vgascreen) next; 123 struct vga_config *cfg; 124 struct vga_handle *hdl; 125 const struct wsscreen_descr *type; 126 127 int active; 128 struct vga_scrmem *mem; 129 int encoding; 130 131 int dispoffset; 132 int mindispoffset; 133 int maxdispoffset; 134 135 int cursoron; /* Is cursor displayed? */ 136 int cursorcol; /* Current cursor column */ 137 int cursorrow; /* Current cursor row */ 138 struct vga_scrmem cursortmp; 139 int cursorstride; 140 141 LIST_HEAD(, vga_raster_font) fontset; 142 }; 143 144 struct vga_moderegs { 145 u_int8_t miscout; /* Misc. output */ 146 u_int8_t crtc[MC6845_NREGS]; /* CRTC controller */ 147 u_int8_t atc[VGA_ATC_NREGS]; /* Attribute controller */ 148 u_int8_t ts[VGA_TS_NREGS]; /* Time sequencer */ 149 u_int8_t gdc[VGA_GDC_NREGS]; /* Graphics display controller */ 150 }; 151 152 static int vgaconsole, vga_console_type, vga_console_attached; 153 static struct vgascreen vga_console_screen; 154 static struct vga_config vga_console_vc; 155 static struct vga_raster_font vga_console_fontset_ascii; 156 static struct videomode vga_console_modes[2] = { 157 /* 640x400 for 80x25, 80x40 and 80x50 modes */ 158 { 159 25175, 640, 664, 760, 800, 400, 409, 411, 450, 0, NULL, 160 }, 161 /* 640x480 for 80x30 mode */ 162 { 163 25175, 640, 664, 760, 800, 480, 491, 493, 525, 0, NULL, 164 } 165 }; 166 167 static void vga_raster_init(struct vga_config *, bus_space_tag_t, 168 bus_space_tag_t); 169 static void vga_raster_init_screen(struct vga_config *, struct vgascreen *, 170 const struct wsscreen_descr *, int, long *); 171 static void vga_raster_setup_font(struct vga_config *, struct vgascreen *); 172 static void vga_setup_regs(struct videomode *, struct vga_moderegs *); 173 static void vga_set_mode(struct vga_handle *, struct vga_moderegs *); 174 static void vga_restore_screen(struct vgascreen *, 175 const struct wsscreen_descr *, struct vga_scrmem *); 176 static void vga_raster_cursor_init(struct vgascreen *, int); 177 static void _vga_raster_putchar(void *, int, int, u_int, long, 178 struct vga_raster_font *); 179 180 static void vga_raster_cursor(void *, int, int, int); 181 static int vga_raster_mapchar(void *, int, u_int *); 182 static void vga_raster_putchar(void *, int, int, u_int, long); 183 static void vga_raster_copycols(void *, int, int, int, int); 184 static void vga_raster_erasecols(void *, int, int, int, long); 185 static void vga_raster_copyrows(void *, int, int, int); 186 static void vga_raster_eraserows(void *, int, int, long); 187 static int vga_raster_allocattr(void *, int, int, int, long *); 188 #ifdef WSDISPLAY_CUSTOM_OUTPUT 189 static void vga_raster_replaceattr(void *, long, long); 190 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 191 192 const struct wsdisplay_emulops vga_raster_emulops = { 193 vga_raster_cursor, 194 vga_raster_mapchar, 195 vga_raster_putchar, 196 vga_raster_copycols, 197 vga_raster_erasecols, 198 vga_raster_copyrows, 199 vga_raster_eraserows, 200 vga_raster_allocattr, 201 #ifdef WSDISPLAY_CUSTOM_OUTPUT 202 vga_raster_replaceattr, 203 #else /* WSDISPLAY_CUSTOM_OUTPUT */ 204 NULL, 205 #endif /* WSDISPLAY_CUSTOM_OUTPUT */ 206 }; 207 208 /* 209 * translate WS(=ANSI) color codes to standard pc ones 210 */ 211 static const unsigned char fgansitopc[] = { 212 #ifdef __alpha__ 213 /* 214 * XXX DEC HAS SWITCHED THE CODES FOR BLUE AND RED!!! 215 * XXX We should probably not bother with this 216 * XXX (reinitialize the palette registers). 217 */ 218 FG_BLACK, FG_BLUE, FG_GREEN, FG_CYAN, FG_RED, 219 FG_MAGENTA, FG_BROWN, FG_LIGHTGREY 220 #else 221 FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE, 222 FG_MAGENTA, FG_CYAN, FG_LIGHTGREY 223 #endif 224 }, bgansitopc[] = { 225 #ifdef __alpha__ 226 BG_BLACK, BG_BLUE, BG_GREEN, BG_CYAN, BG_RED, 227 BG_MAGENTA, BG_BROWN, BG_LIGHTGREY 228 #else 229 BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE, 230 BG_MAGENTA, BG_CYAN, BG_LIGHTGREY 231 #endif 232 }; 233 234 const struct wsscreen_descr vga_25lscreen = { 235 "80x25", 80, 25, 236 &vga_raster_emulops, 237 8, 16, 238 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 239 &vga_console_modes[0] 240 }, vga_25lscreen_mono = { 241 "80x25", 80, 25, 242 &vga_raster_emulops, 243 8, 16, 244 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 245 &vga_console_modes[0] 246 }, vga_30lscreen = { 247 "80x30", 80, 30, 248 &vga_raster_emulops, 249 8, 16, 250 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 251 &vga_console_modes[1] 252 }, vga_30lscreen_mono = { 253 "80x30", 80, 30, 254 &vga_raster_emulops, 255 8, 16, 256 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 257 &vga_console_modes[1] 258 }, vga_40lscreen = { 259 "80x40", 80, 40, 260 &vga_raster_emulops, 261 8, 10, 262 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 263 &vga_console_modes[0] 264 }, vga_40lscreen_mono = { 265 "80x40", 80, 40, 266 &vga_raster_emulops, 267 8, 10, 268 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 269 &vga_console_modes[0] 270 }, vga_50lscreen = { 271 "80x50", 80, 50, 272 &vga_raster_emulops, 273 8, 8, 274 WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, 275 &vga_console_modes[0] 276 }, vga_50lscreen_mono = { 277 "80x50", 80, 50, 278 &vga_raster_emulops, 279 8, 8, 280 WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, 281 &vga_console_modes[0] 282 }; 283 284 const struct wsscreen_descr *_vga_scrlist[] = { 285 &vga_25lscreen, 286 &vga_30lscreen, 287 &vga_40lscreen, 288 &vga_50lscreen, 289 }, *_vga_scrlist_mono[] = { 290 &vga_25lscreen_mono, 291 &vga_30lscreen_mono, 292 &vga_40lscreen_mono, 293 &vga_50lscreen_mono, 294 }; 295 296 const struct wsscreen_list vga_screenlist = { 297 sizeof(_vga_scrlist) / sizeof(struct wsscreen_descr *), 298 _vga_scrlist 299 }, vga_screenlist_mono = { 300 sizeof(_vga_scrlist_mono) / sizeof(struct wsscreen_descr *), 301 _vga_scrlist_mono 302 }; 303 304 static int vga_raster_ioctl(void *, void *, u_long, caddr_t, int, 305 struct lwp *); 306 static paddr_t vga_raster_mmap(void *, void *, off_t, int); 307 static int vga_raster_alloc_screen(void *, const struct wsscreen_descr *, 308 void **, int *, int *, long *); 309 static void vga_raster_free_screen(void *, void *); 310 static int vga_raster_show_screen(void *, void *, int, 311 void (*)(void *, int, int), void *); 312 static int vga_raster_load_font(void *, void *, struct wsdisplay_font *); 313 314 static void vga_switch_screen(struct vga_config *); 315 static void vga_raster_setscreentype(struct vga_config *, 316 const struct wsscreen_descr *); 317 318 const struct wsdisplay_accessops vga_raster_accessops = { 319 vga_raster_ioctl, 320 vga_raster_mmap, 321 vga_raster_alloc_screen, 322 vga_raster_free_screen, 323 vga_raster_show_screen, 324 vga_raster_load_font, 325 NULL, /* pollc */ 326 NULL, /* scroll */ 327 }; 328 329 int 330 vga_cnattach(bus_space_tag_t iot, bus_space_tag_t memt, int type, int check) 331 { 332 long defattr; 333 const struct wsscreen_descr *scr; 334 #ifdef VGA_CONSOLE_SCREENTYPE 335 const char *typestr = NULL; 336 #endif 337 338 if (check && !vga_common_probe(iot, memt)) 339 return (ENXIO); 340 341 /* set up bus-independent VGA configuration */ 342 vga_raster_init(&vga_console_vc, iot, memt); 343 #ifdef VGA_CONSOLE_SCREENTYPE 344 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 345 &vga_screenlist_mono : &vga_screenlist, VGA_CONSOLE_SCREENTYPE); 346 if (!scr) 347 /* Invalid screen type, continue with the default mode. */ 348 typestr = "80x25"; 349 else if (scr->nrows > 30) 350 /* Unsupported screen type, try 80x30. */ 351 typestr = "80x30"; 352 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 353 &vga_screenlist_mono : &vga_screenlist, typestr); 354 if (scr != vga_console_vc.currenttype) 355 vga_console_vc.currenttype = scr; 356 #else 357 scr = vga_console_vc.currenttype; 358 #endif 359 vga_raster_init_screen(&vga_console_vc, &vga_console_screen, scr, 1, 360 &defattr); 361 362 vga_console_screen.active = 1; 363 vga_console_vc.active = &vga_console_screen; 364 365 wsdisplay_cnattach(scr, &vga_console_screen, 366 vga_console_screen.cursorcol, vga_console_screen.cursorrow, 367 defattr); 368 369 vgaconsole = 1; 370 vga_console_type = type; 371 return (0); 372 } 373 374 void 375 vga_raster_init(struct vga_config *vc, bus_space_tag_t iot, 376 bus_space_tag_t memt) 377 { 378 struct vga_handle *vh = &vc->hdl; 379 u_int8_t mor; 380 struct vga_raster_font *vf; 381 382 vh->vh_iot = iot; 383 vh->vh_memt = memt; 384 385 if (bus_space_map(vh->vh_iot, 0x3c0, 0x10, 0, &vh->vh_ioh_vga)) 386 panic("vga_raster_init: couldn't map vga io"); 387 388 /* read "misc output register" */ 389 mor = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAR); 390 vh->vh_mono = !(mor & 1); 391 392 if (bus_space_map(vh->vh_iot, (vh->vh_mono ? 0x3b0 : 0x3d0), 0x10, 0, 393 &vh->vh_ioh_6845)) 394 panic("vga_raster_init: couldn't map 6845 io"); 395 396 if (bus_space_map(vh->vh_memt, 0xa0000, 0x20000, 0, &vh->vh_allmemh)) 397 panic("vga_raster_init: couldn't map memory"); 398 399 if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh, 0, 0x10000, 400 &vh->vh_memh)) 401 panic("vga_raster_init: mem subrange failed"); 402 403 /* should only reserve the space (no need to map - save KVM) */ 404 vc->vc_biostag = memt; 405 if (bus_space_map(vc->vc_biostag, 0xc0000, 0x8000, 0, &vc->vc_bioshdl)) 406 vc->vc_biosmapped = 0; 407 else 408 vc->vc_biosmapped = 1; 409 410 vc->nscreens = 0; 411 LIST_INIT(&vc->screens); 412 vc->active = NULL; 413 vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen; 414 callout_init(&vc->vc_switch_callout); 415 416 wsfont_init(); 417 vc->nfonts = 1; 418 LIST_INIT(&vc->vc_fontlist); 419 vf = &vga_console_fontset_ascii; 420 if (vga_no_builtinfont) { 421 struct wsdisplay_font *wf; 422 int cookie; 423 424 /* prefer 8x16 pixel font */ 425 cookie = wsfont_find(NULL, 8, 16, 0, WSDISPLAY_FONTORDER_L2R, 426 0); 427 if (cookie == -1) 428 cookie = wsfont_find(NULL, 0, 0, 0, 429 WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R); 430 if (cookie == -1 || wsfont_lock(cookie, &wf)) 431 panic("vga_raster_init: can't load console font"); 432 vf->font = wf; 433 } else { 434 vga_load_builtinfont(vh, builtinfont_data, 0, 256); 435 vf->font = &builtinfont; 436 } 437 LIST_INSERT_HEAD(&vc->vc_fontlist, vf, next); 438 } 439 440 void 441 vga_raster_init_screen(struct vga_config *vc, struct vgascreen *scr, 442 const struct wsscreen_descr *type, int existing, long *attrp) 443 { 444 int cpos; 445 int res; 446 struct vga_handle *vh; 447 448 scr->cfg = vc; 449 scr->hdl = &vc->hdl; 450 scr->type = type; 451 scr->mindispoffset = 0; 452 scr->maxdispoffset = 0x10000; 453 vh = &vc->hdl; 454 455 LIST_INIT(&scr->fontset); 456 vga_raster_setup_font(vc, scr); 457 458 if (existing) { 459 int i; 460 461 cpos = vga_6845_read(vh, cursorh) << 8; 462 cpos |= vga_6845_read(vh, cursorl); 463 464 /* make sure we have a valid cursor position */ 465 if (cpos < 0 || cpos >= type->nrows * type->ncols) 466 cpos = 0; 467 468 scr->dispoffset = vga_6845_read(vh, startadrh) << 9; 469 scr->dispoffset |= vga_6845_read(vh, startadrl) << 1; 470 471 /* make sure we have a valid memory offset */ 472 if (scr->dispoffset < scr->mindispoffset || 473 scr->dispoffset > scr->maxdispoffset) 474 scr->dispoffset = scr->mindispoffset; 475 476 scr->mem = boot_scrmem; 477 scr->active = 1; 478 479 /* Save the current screen to memory. XXXBJY assume 80x25 */ 480 for (i = 0; i < 80 * 25; i++) { 481 scr->mem[i].ch = bus_space_read_1(vh->vh_memt, 482 vh->vh_allmemh, 0x18000 + i * 2); 483 scr->mem[i].attr = bus_space_read_1(vh->vh_memt, 484 vh->vh_allmemh, 0x18000 + i * 2 + 1); 485 scr->mem[i].enc = scr->encoding; 486 } 487 488 vga_raster_setscreentype(vc, type); 489 490 /* Clear the entire screen. */ 491 vga_gdc_write(vh, mode, 0x02); 492 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 493 0x4000); 494 495 vga_restore_screen(scr, type, scr->mem); 496 } else { 497 cpos = 0; 498 scr->dispoffset = scr->mindispoffset; 499 scr->mem = NULL; 500 scr->active = 0; 501 } 502 503 scr->cursorrow = cpos / type->ncols; 504 scr->cursorcol = cpos % type->ncols; 505 vga_raster_cursor_init(scr, existing); 506 507 #ifdef __alpha__ 508 if (!vc->hdl.vh_mono) 509 /* 510 * DEC firmware uses a blue background. 511 */ 512 res = vga_raster_allocattr(scr, WSCOL_WHITE, WSCOL_BLUE, 513 WSATTR_WSCOLORS, attrp); 514 else 515 #endif 516 res = vga_raster_allocattr(scr, 0, 0, 0, attrp); 517 #ifdef DIAGNOSTIC 518 if (res) 519 panic("vga_raster_init_screen: attribute botch"); 520 #endif 521 522 vc->nscreens++; 523 LIST_INSERT_HEAD(&vc->screens, scr, next); 524 } 525 526 void 527 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, 528 bus_space_tag_t memt, int type, int quirks, 529 const struct vga_funcs *vf) 530 { 531 int console; 532 struct vga_config *vc; 533 struct wsemuldisplaydev_attach_args aa; 534 535 console = vga_is_console(iot, type); 536 537 if (console) { 538 vc = &vga_console_vc; 539 vga_console_attached = 1; 540 } else { 541 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK); 542 vga_raster_init(vc, iot, memt); 543 } 544 545 vc->vc_type = type; 546 vc->vc_funcs = vf; 547 548 sc->sc_vc = vc; 549 vc->softc = sc; 550 551 aa.console = console; 552 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); 553 aa.accessops = &vga_raster_accessops; 554 aa.accesscookie = vc; 555 556 config_found(&sc->sc_dev, &aa, wsemuldisplaydevprint); 557 } 558 559 int 560 vga_is_console(bus_space_tag_t iot, int type) 561 { 562 if (vgaconsole && 563 !vga_console_attached && 564 iot == vga_console_vc.hdl.vh_iot && 565 (vga_console_type == -1 || (type == vga_console_type))) 566 return (1); 567 return (0); 568 } 569 570 static int 571 vga_get_video(struct vga_config *vc) 572 { 573 574 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0; 575 } 576 577 static void 578 vga_set_video(struct vga_config *vc, int state) 579 { 580 int val; 581 582 vga_ts_write(&vc->hdl, syncreset, 0x01); 583 if (state) { /* unblank screen */ 584 val = vga_ts_read(&vc->hdl, mode); 585 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK); 586 #ifndef VGA_NO_VBLANK 587 val = vga_6845_read(&vc->hdl, mode); 588 vga_6845_write(&vc->hdl, mode, val | 0x80); 589 #endif 590 } else { /* blank screen */ 591 val = vga_ts_read(&vc->hdl, mode); 592 vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK); 593 #ifndef VGA_NO_VBLANK 594 val = vga_6845_read(&vc->hdl, mode); 595 vga_6845_write(&vc->hdl, mode, val & ~0x80); 596 #endif 597 } 598 vga_ts_write(&vc->hdl, syncreset, 0x03); 599 } 600 601 int 602 vga_raster_ioctl(void *v, void *vs, u_long cmd, caddr_t data, int flag, 603 struct lwp *l) 604 { 605 struct vga_config *vc = v; 606 const struct vga_funcs *vf = vc->vc_funcs; 607 608 switch (cmd) { 609 case WSDISPLAYIO_GTYPE: 610 *(int *)data = vc->vc_type; 611 return 0; 612 613 case WSDISPLAYIO_GINFO: 614 /* XXX should get detailed hardware information here */ 615 return EPASSTHROUGH; 616 617 case WSDISPLAYIO_GVIDEO: 618 #if 1 619 *(int *)data = (vga_get_video(vc) ? 620 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); 621 return 0; 622 #endif 623 624 case WSDISPLAYIO_SVIDEO: 625 #if 1 626 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 627 return 0; 628 #endif 629 630 case WSDISPLAYIO_GETCMAP: 631 case WSDISPLAYIO_PUTCMAP: 632 case WSDISPLAYIO_GCURPOS: 633 case WSDISPLAYIO_SCURPOS: 634 case WSDISPLAYIO_GCURMAX: 635 case WSDISPLAYIO_GCURSOR: 636 case WSDISPLAYIO_SCURSOR: 637 /* NONE of these operations are by the generic VGA driver. */ 638 return EPASSTHROUGH; 639 } 640 641 if (vc->vc_funcs == NULL) 642 return (EPASSTHROUGH); 643 644 if (vf->vf_ioctl == NULL) 645 return (EPASSTHROUGH); 646 647 return ((*vf->vf_ioctl)(v, cmd, data, flag, l)); 648 } 649 650 static paddr_t 651 vga_raster_mmap(void *v, void *vs, off_t offset, int prot) 652 { 653 struct vga_config *vc = v; 654 const struct vga_funcs *vf = vc->vc_funcs; 655 656 if (vc->vc_funcs == NULL) 657 return (-1); 658 659 if (vf->vf_mmap == NULL) 660 return (-1); 661 662 return ((*vf->vf_mmap)(v, offset, prot)); 663 } 664 665 int 666 vga_raster_alloc_screen(void *v, const struct wsscreen_descr *type, 667 void **cookiep, int *curxp, int *curyp, long *defattrp) 668 { 669 struct vga_config *vc = v; 670 struct vgascreen *scr; 671 672 if (vc->nscreens == 1) { 673 vc->screens.lh_first->mem = boot_scrmem; 674 } 675 676 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 677 vga_raster_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 678 679 if (vc->nscreens == 1) { 680 scr->active = 1; 681 vc->active = scr; 682 vc->currenttype = type; 683 } else { 684 scr->mem = malloc(sizeof(struct vga_scrmem) * 685 type->ncols * type->nrows, M_DEVBUF, M_WAITOK); 686 vga_raster_eraserows(scr, 0, type->nrows, *defattrp); 687 } 688 689 *cookiep = scr; 690 *curxp = scr->cursorcol; 691 *curyp = scr->cursorrow; 692 693 return (0); 694 } 695 696 void 697 vga_raster_free_screen(void *v, void *cookie) 698 { 699 struct vgascreen *vs = cookie; 700 struct vga_config *vc = vs->cfg; 701 702 LIST_REMOVE(vs, next); 703 vc->nscreens--; 704 if (vs != &vga_console_screen) 705 free(vs, M_DEVBUF); 706 else 707 panic("vga_raster_free_screen: console"); 708 709 if (vc->active == vs) 710 vc->active = 0; 711 } 712 713 int 714 vga_raster_show_screen(void *v, void *cookie, int waitok, 715 void (*cb)(void *, int, int), void *cbarg) 716 { 717 struct vgascreen *scr = cookie, *oldscr; 718 struct vga_config *vc = scr->cfg; 719 720 oldscr = vc->active; /* can be NULL! */ 721 if (scr == oldscr) { 722 return (0); 723 } 724 725 vc->wantedscreen = cookie; 726 vc->switchcb = cb; 727 vc->switchcbarg = cbarg; 728 if (cb) { 729 callout_reset(&vc->vc_switch_callout, 0, 730 (void(*)(void *))vga_switch_screen, vc); 731 return (EAGAIN); 732 } 733 734 vga_switch_screen(vc); 735 return (0); 736 } 737 738 void 739 vga_switch_screen(struct vga_config *vc) 740 { 741 struct vgascreen *scr, *oldscr; 742 struct vga_handle *vh = &vc->hdl; 743 const struct wsscreen_descr *type; 744 745 scr = vc->wantedscreen; 746 if (!scr) { 747 printf("vga_switch_screen: disappeared\n"); 748 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 749 return; 750 } 751 type = scr->type; 752 oldscr = vc->active; /* can be NULL! */ 753 #ifdef DIAGNOSTIC 754 if (oldscr) { 755 if (!oldscr->active) 756 panic("vga_raster_show_screen: not active"); 757 if (oldscr->type != vc->currenttype) 758 panic("vga_raster_show_screen: bad type"); 759 } 760 #endif 761 if (scr == oldscr) { 762 return; 763 } 764 #ifdef DIAGNOSTIC 765 if (scr->active) 766 panic("vga_raster_show_screen: active"); 767 #endif 768 769 if (oldscr) 770 oldscr->active = 0; 771 772 if (vc->currenttype != type) { 773 vga_raster_setscreentype(vc, type); 774 vc->currenttype = type; 775 } 776 777 scr->dispoffset = scr->mindispoffset; 778 779 if (!oldscr || (scr->dispoffset != oldscr->dispoffset)) { 780 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 781 vga_6845_write(vh, startadrl, scr->dispoffset); 782 } 783 784 /* Clear the entire screen. */ 785 vga_gdc_write(vh, mode, 0x02); 786 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x2000); 787 788 scr->active = 1; 789 vga_restore_screen(scr, type, scr->mem); 790 791 vc->active = scr; 792 793 vga_raster_cursor(scr, scr->cursoron, scr->cursorrow, scr->cursorcol); 794 795 vc->wantedscreen = 0; 796 if (vc->switchcb) 797 (*vc->switchcb)(vc->switchcbarg, 0, 0); 798 } 799 800 static int 801 vga_raster_load_font(void *v, void *id, 802 struct wsdisplay_font *data) 803 { 804 /* XXX */ 805 printf("vga_raster_load_font: called\n"); 806 807 return (0); 808 } 809 810 void 811 vga_raster_setup_font(struct vga_config *vc, struct vgascreen *scr) 812 { 813 struct vga_raster_font *vf; 814 struct wsdisplay_font *wf; 815 int cookie; 816 817 LIST_FOREACH(vf, &vc->vc_fontlist, next) { 818 if (wsfont_matches(vf->font, 0, 0, scr->type->fontheight, 0)) { 819 scr->encoding = vf->font->encoding; 820 LIST_INSERT_HEAD(&scr->fontset, vf, next); 821 return; 822 } 823 } 824 825 cookie = wsfont_find(NULL, 0, scr->type->fontheight, 0, 826 WSDISPLAY_FONTORDER_L2R, 0); 827 if (cookie == -1) 828 return; 829 830 if (wsfont_lock(cookie, &wf)) 831 return; 832 833 vf = malloc(sizeof(struct vga_raster_font), M_DEVBUF, M_NOWAIT); 834 if (!vf) { 835 wsfont_unlock(cookie); 836 return; 837 } 838 839 vf->font = wf; 840 scr->encoding = vf->font->encoding; 841 LIST_INSERT_HEAD(&scr->fontset, vf, next); 842 } 843 844 void 845 vga_setup_regs(struct videomode *mode, struct vga_moderegs *regs) 846 { 847 int i; 848 int depth = 4; /* XXXBJY hardcoded for now */ 849 const u_int8_t palette[] = { 850 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 851 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f 852 }; 853 854 /* 855 * Compute hsync and vsync polarity. 856 */ 857 if ((mode->flags & (VID_PHSYNC | VID_NHSYNC)) 858 && (mode->flags & (VID_PVSYNC | VID_NVSYNC))) { 859 regs->miscout = 0x23; 860 if (mode->flags & VID_NHSYNC) 861 regs->miscout |= 0x40; 862 if (mode->flags & VID_NVSYNC) 863 regs->miscout |= 0x80; 864 } else { 865 if (mode->flags & VID_DBLSCAN) 866 mode->vdisplay *= 2; 867 if (mode->vdisplay < 400) 868 regs->miscout = 0xa3; 869 else if (mode->vdisplay < 480) 870 regs->miscout = 0x63; 871 else if (mode->vdisplay < 768) 872 regs->miscout = 0xe3; 873 else 874 regs->miscout = 0x23; 875 } 876 877 /* 878 * Time sequencer 879 */ 880 if (depth == 4) 881 regs->ts[0] = 0x02; 882 else 883 regs->ts[0] = 0x00; 884 if (mode->flags & VID_CLKDIV2) 885 regs->ts[1] = 0x09; 886 else 887 regs->ts[1] = 0x01; 888 regs->ts[2] = 0x0f; 889 regs->ts[3] = 0x00; 890 if (depth < 8) 891 regs->ts[4] = 0x06; 892 else 893 regs->ts[4] = 0x0e; 894 895 /* 896 * CRTC controller 897 */ 898 regs->crtc[0] = (mode->htotal >> 3) - 5; 899 regs->crtc[1] = (mode->hdisplay >> 3) - 1; 900 regs->crtc[2] = (mode->hsync_start >> 3) - 1; 901 regs->crtc[3] = (((mode->hsync_end >> 3) - 1) & 0x1f) | 0x80; 902 regs->crtc[4] = mode->hsync_start >> 3; 903 regs->crtc[5] = ((((mode->hsync_end >> 3) - 1) & 0x20) << 2) 904 | (((mode->hsync_end >> 3)) & 0x1f); 905 regs->crtc[6] = (mode->vtotal - 2) & 0xff; 906 regs->crtc[7] = (((mode->vtotal - 2) & 0x100) >> 8) 907 | (((mode->vdisplay - 1) & 0x100) >> 7) 908 | ((mode->vsync_start & 0x100) >> 6) 909 | (((mode->vsync_start - 1) & 0x100) >> 5) 910 | 0x10 911 | (((mode->vtotal - 2) & 0x200) >> 4) 912 | (((mode->vdisplay - 1) & 0x200) >> 3) 913 | ((mode->vsync_start & 0x200) >> 2); 914 regs->crtc[8] = 0x00; 915 regs->crtc[9] = (((mode->vsync_start - 1) & 0x200) >> 4) | 0x40; 916 if (mode->flags & VID_DBLSCAN) 917 regs->crtc[9] |= 0x80; 918 regs->crtc[10] = 0x00; 919 regs->crtc[11] = 0x00; 920 regs->crtc[12] = 0x00; 921 regs->crtc[13] = 0x00; 922 regs->crtc[14] = 0x00; 923 regs->crtc[15] = 0x00; 924 regs->crtc[16] = mode->vsync_start & 0xff; 925 regs->crtc[17] = (mode->vsync_end & 0x0f) | 0x20; 926 regs->crtc[18] = (mode->vdisplay - 1) & 0xff; 927 regs->crtc[19] = mode->hdisplay >> 4; /* XXXBJY */ 928 regs->crtc[20] = 0x00; 929 regs->crtc[21] = (mode->vsync_start - 1) & 0xff; 930 regs->crtc[22] = (mode->vsync_end - 1) & 0xff; 931 if (depth < 8) 932 regs->crtc[23] = 0xe3; 933 else 934 regs->crtc[23] = 0xc3; 935 regs->crtc[24] = 0xff; 936 937 /* 938 * Graphics display controller 939 */ 940 regs->gdc[0] = 0x00; 941 regs->gdc[1] = 0x00; 942 regs->gdc[2] = 0x00; 943 regs->gdc[3] = 0x00; 944 regs->gdc[4] = 0x00; 945 if (depth == 4) 946 regs->gdc[5] = 0x02; 947 else 948 regs->gdc[5] = 0x40; 949 regs->gdc[6] = 0x01; 950 regs->gdc[7] = 0x0f; 951 regs->gdc[8] = 0xff; 952 953 /* 954 * Attribute controller 955 */ 956 /* Set palette registers. */ 957 for (i = 0; i < 16; i++) 958 regs->atc[i] = palette[i]; 959 if (depth == 4) 960 regs->atc[16] = 0x01; /* XXXBJY was 0x81 in XFree86 */ 961 else 962 regs->atc[16] = 0x41; 963 regs->atc[17] = 0x00; /* XXXBJY just a guess */ 964 regs->atc[18] = 0x0f; 965 regs->atc[19] = 0x00; 966 regs->atc[20] = 0x00; 967 } 968 969 void 970 vga_set_mode(struct vga_handle *vh, struct vga_moderegs *regs) 971 { 972 int i; 973 974 /* Disable display. */ 975 vga_ts_write(vh, mode, vga_ts_read(vh, mode) | VGA_TS_MODE_BLANK); 976 977 /* Write misc output register. */ 978 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAW, 979 regs->miscout); 980 981 /* Set synchronous reset. */ 982 vga_ts_write(vh, syncreset, 0x01); 983 vga_ts_write(vh, mode, regs->ts[1] | VGA_TS_MODE_BLANK); 984 for (i = 2; i < VGA_TS_NREGS; i++) 985 _vga_ts_write(vh, i, regs->ts[i]); 986 /* Clear synchronous reset. */ 987 vga_ts_write(vh, syncreset, 0x03); 988 989 /* Unprotect CRTC registers 0-7. */ 990 vga_6845_write(vh, vsynce, vga_6845_read(vh, vsynce) & ~0x80); 991 /* Write CRTC registers. */ 992 for (i = 0; i < MC6845_NREGS; i++) 993 _vga_6845_write(vh, i, regs->crtc[i]); 994 995 /* Write graphics display registers. */ 996 for (i = 0; i < VGA_GDC_NREGS; i++) 997 _vga_gdc_write(vh, i, regs->gdc[i]); 998 999 /* Write attribute controller registers. */ 1000 for (i = 0; i < VGA_ATC_NREGS; i++) 1001 _vga_attr_write(vh, i, regs->atc[i]); 1002 1003 /* Enable display. */ 1004 vga_ts_write(vh, mode, vga_ts_read(vh, mode) & ~VGA_TS_MODE_BLANK); 1005 } 1006 1007 void 1008 vga_raster_cursor_init(struct vgascreen *scr, int existing) 1009 { 1010 struct vga_handle *vh = scr->hdl; 1011 bus_space_tag_t memt; 1012 bus_space_handle_t memh; 1013 int off; 1014 1015 if (existing) { 1016 /* 1017 * This is the first screen. At this point, scr->active is 1018 * false, so we can't use vga_raster_cursor() to do this. 1019 */ 1020 memt = vh->vh_memt; 1021 memh = vh->vh_memh; 1022 off = (scr->cursorrow * scr->type->ncols + scr->cursorcol) + 1023 scr->dispoffset / 8; 1024 1025 scr->cursortmp = scr->mem[off]; 1026 vga_raster_putchar(scr, scr->cursorrow, scr->cursorcol, 1027 scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); 1028 } else { 1029 scr->cursortmp.ch = 0; 1030 scr->cursortmp.attr = 0; 1031 scr->cursortmp.second = 0; 1032 scr->cursortmp.enc = scr->encoding; 1033 } 1034 1035 scr->cursoron = 1; 1036 } 1037 1038 void 1039 vga_raster_cursor(void *id, int on, int row, int col) 1040 { 1041 struct vgascreen *scr = id; 1042 int off, tmp; 1043 1044 /* Remove old cursor image */ 1045 if (scr->cursoron) { 1046 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1047 if (scr->active) { 1048 tmp = scr->encoding; 1049 scr->encoding = scr->cursortmp.enc; 1050 if (scr->cursortmp.second) 1051 vga_raster_putchar(id, scr->cursorrow, 1052 scr->cursorcol - 1, scr->cursortmp.ch, 1053 scr->cursortmp.attr); 1054 else 1055 vga_raster_putchar(id, scr->cursorrow, 1056 scr->cursorcol, scr->cursortmp.ch, 1057 scr->cursortmp.attr); 1058 scr->encoding = tmp; 1059 } 1060 } 1061 1062 scr->cursorrow = row; 1063 scr->cursorcol = col; 1064 1065 if ((scr->cursoron = on) == 0) 1066 return; 1067 1068 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1069 scr->cursortmp = scr->mem[off]; 1070 if (scr->active) { 1071 tmp = scr->encoding; 1072 scr->encoding = scr->cursortmp.enc; 1073 if (scr->cursortmp.second) 1074 vga_raster_putchar(id, scr->cursorrow, 1075 scr->cursorcol - 1, scr->cursortmp.ch, 1076 scr->cursortmp.attr ^ 0x77); 1077 else 1078 vga_raster_putchar(id, scr->cursorrow, 1079 scr->cursorcol, scr->cursortmp.ch, 1080 scr->cursortmp.attr ^ 0x77); 1081 scr->encoding = tmp; 1082 } 1083 } 1084 1085 static int 1086 vga_raster_mapchar(void *id, int uni, u_int *index) 1087 { 1088 struct vgascreen *scr = id; 1089 1090 if (scr->encoding == WSDISPLAY_FONTENC_IBM) 1091 return pcdisplay_mapchar(id, uni, index); 1092 else { 1093 *index = uni; 1094 return 5; 1095 } 1096 } 1097 1098 void 1099 vga_raster_putchar(void *id, int row, int col, u_int c, long attr) 1100 { 1101 struct vgascreen *scr = id; 1102 size_t off; 1103 struct vga_raster_font *fs; 1104 u_int tmp_ch; 1105 1106 off = row * scr->type->ncols + col; 1107 1108 if (__predict_false(off >= (scr->type->ncols * scr->type->nrows))) 1109 return; 1110 1111 LIST_FOREACH(fs, &scr->fontset, next) { 1112 if ((scr->encoding == fs->font->encoding) && 1113 (c >= fs->font->firstchar) && 1114 (c < fs->font->firstchar + fs->font->numchars) && 1115 (scr->type->fontheight == fs->font->fontheight)) { 1116 if (scr->active) { 1117 tmp_ch = c - fs->font->firstchar; 1118 _vga_raster_putchar(scr, row, col, tmp_ch, 1119 attr, fs); 1120 } 1121 1122 scr->mem[off].ch = c; 1123 scr->mem[off].attr = attr; 1124 scr->mem[off].second = 0; 1125 scr->mem[off].enc = fs->font->encoding; 1126 1127 if (fs->font->stride == 2) { 1128 scr->mem[off + 1].ch = c; 1129 scr->mem[off + 1].attr = attr; 1130 scr->mem[off + 1].second = 1; 1131 scr->mem[off + 1].enc = fs->font->encoding; 1132 } 1133 1134 return; 1135 } 1136 } 1137 1138 /* 1139 * No match found. 1140 */ 1141 if (scr->active) 1142 /* 1143 * Put a single width space character no matter what the 1144 * actual width of the character is. 1145 */ 1146 _vga_raster_putchar(scr, row, col, ' ', attr, 1147 &vga_console_fontset_ascii); 1148 scr->mem[off].ch = c; 1149 scr->mem[off].attr = attr; 1150 scr->mem[off].second = 0; 1151 scr->mem[off].enc = scr->encoding; 1152 } 1153 1154 static void 1155 _vga_raster_putchar(void *id, int row, int col, u_int c, long attr, 1156 struct vga_raster_font *fs) 1157 { 1158 struct vgascreen *scr = id; 1159 struct vga_handle *vh = scr->hdl; 1160 bus_space_tag_t memt = vh->vh_memt; 1161 bus_space_handle_t memh = vh->vh_memh; 1162 int i; 1163 int rasoff, rasoff2; 1164 int fheight = scr->type->fontheight; 1165 volatile u_int8_t dummy, pattern; 1166 u_int8_t fgcolor, bgcolor; 1167 1168 rasoff = scr->dispoffset + row * scr->type->ncols * fheight + col; 1169 rasoff2 = rasoff; 1170 1171 #if 0 1172 bgcolor = bgansitopc[attr >> 4]; 1173 fgcolor = fgansitopc[attr & 0x0f]; 1174 #else 1175 bgcolor = ((attr >> 4) & 0x0f); 1176 fgcolor = attr & 0x0f; 1177 #endif 1178 1179 if (fs->font->stride == 1) { 1180 /* Paint background. */ 1181 vga_gdc_write(vh, mode, 0x02); 1182 for (i = 0; i < fheight; i++) { 1183 bus_space_write_1(memt, memh, rasoff, bgcolor); 1184 rasoff += scr->type->ncols; 1185 } 1186 1187 /* Draw a single width character. */ 1188 vga_gdc_write(vh, mode, 0x03); 1189 vga_gdc_write(vh, setres, fgcolor); 1190 for (i = 0; i < fheight; i++) { 1191 pattern = ((u_int8_t *)fs->font->data)[c * fheight + i]; 1192 /* When pattern is 0, skip output for speed-up. */ 1193 if (pattern != 0) { 1194 dummy = bus_space_read_1(memt, memh, rasoff2); 1195 bus_space_write_1(memt, memh, rasoff2, pattern); 1196 } 1197 rasoff2 += scr->type->ncols; 1198 } 1199 } else if (fs->font->stride == 2) { 1200 /* Paint background. */ 1201 vga_gdc_write(vh, mode, 0x02); 1202 for (i = 0; i < fheight; i++) { 1203 bus_space_write_1(memt, memh, rasoff, bgcolor); 1204 bus_space_write_1(memt, memh, rasoff + 1, bgcolor); 1205 rasoff += scr->type->ncols; 1206 } 1207 1208 /* Draw a double width character. */ 1209 vga_gdc_write(vh, mode, 0x03); 1210 vga_gdc_write(vh, setres, fgcolor); 1211 for (i = 0; i < fheight; i++) { 1212 pattern = ((u_int8_t *)fs->font->data) 1213 [(c * fheight + i) * 2]; 1214 if (pattern != 0) { 1215 dummy = bus_space_read_1(memt, memh, rasoff2); 1216 bus_space_write_1(memt, memh, rasoff2, pattern); 1217 } 1218 pattern = ((u_int8_t *)fs->font->data) 1219 [(c * fheight + i) * 2 + 1]; 1220 if (pattern != 0) { 1221 rasoff2++; 1222 dummy = bus_space_read_1(memt, memh, rasoff2); 1223 bus_space_write_1(memt, memh, rasoff2, pattern); 1224 rasoff2--; 1225 } 1226 rasoff2 += scr->type->ncols; 1227 } 1228 } 1229 } 1230 1231 void 1232 vga_raster_copycols(void *id, int row, int srccol, int dstcol, int ncols) 1233 { 1234 struct vgascreen *scr = id; 1235 struct vga_handle *vh = scr->hdl; 1236 bus_space_tag_t memt = vh->vh_memt; 1237 bus_space_handle_t memh = vh->vh_memh; 1238 bus_size_t srcoff, dstoff; 1239 bus_size_t rassrcoff, rasdstoff; 1240 int i; 1241 int fheight = scr->type->fontheight; 1242 1243 srcoff = row * scr->type->ncols + srccol; 1244 dstoff = row * scr->type->ncols + dstcol; 1245 rassrcoff = scr->dispoffset + row * scr->type->ncols * fheight + srccol; 1246 rasdstoff = scr->dispoffset + row * scr->type->ncols * fheight + dstcol; 1247 1248 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1249 ncols * sizeof(struct vga_scrmem)); 1250 1251 vga_gdc_write(vh, mode, 0x01); 1252 if (scr->active) { 1253 for (i = 0; i < fheight; i++) { 1254 bus_space_copy_region_1(memt, memh, 1255 rassrcoff + i * scr->type->ncols, memh, 1256 rasdstoff + i * scr->type->ncols, ncols); 1257 } 1258 } 1259 } 1260 1261 void 1262 vga_raster_erasecols(void *id, int row, int startcol, int ncols, long fillattr) 1263 { 1264 struct vgascreen *scr = id; 1265 int i; 1266 1267 if (scr->active == 0) 1268 return; 1269 1270 for (i = startcol; i < startcol + ncols; i++) 1271 vga_raster_putchar(id, row, i, ' ', fillattr); 1272 } 1273 1274 void 1275 vga_raster_copyrows(void *id, int srcrow, int dstrow, int nrows) 1276 { 1277 struct vgascreen *scr = id; 1278 struct vga_handle *vh = scr->hdl; 1279 bus_space_tag_t memt = vh->vh_memt; 1280 bus_space_handle_t memh = vh->vh_memh; 1281 int ncols; 1282 bus_size_t srcoff, dstoff; 1283 bus_size_t rassrcoff, rasdstoff; 1284 int fheight; 1285 1286 ncols = scr->type->ncols; 1287 fheight = scr->type->fontheight; 1288 1289 srcoff = srcrow * ncols; 1290 dstoff = dstrow * ncols; 1291 rassrcoff = srcoff * fheight; 1292 rasdstoff = dstoff * fheight; 1293 1294 if (scr->active) { 1295 vga_gdc_write(vh, mode, 0x01); 1296 if (dstrow == 0 && (srcrow + nrows == scr->type->nrows)) { 1297 int cursoron = scr->cursoron; 1298 1299 if (cursoron) 1300 /* Disable cursor. */ 1301 vga_raster_cursor(scr, 0, 1302 scr->cursorrow, scr->cursorcol); 1303 1304 /* scroll up whole screen */ 1305 if ((scr->dispoffset + srcrow * ncols * fheight) 1306 <= scr->maxdispoffset) 1307 scr->dispoffset += srcrow * ncols * fheight; 1308 else { 1309 bus_space_copy_region_1(memt, memh, 1310 scr->dispoffset + rassrcoff, 1311 memh, scr->mindispoffset, 1312 nrows * ncols * fheight); 1313 scr->dispoffset = scr->mindispoffset; 1314 } 1315 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 1316 vga_6845_write(vh, startadrl, scr->dispoffset); 1317 1318 if (cursoron) 1319 /* Enable cursor. */ 1320 vga_raster_cursor(scr, 1, scr->cursorrow, 1321 scr->cursorcol); 1322 } else 1323 bus_space_copy_region_1(memt, memh, 1324 scr->dispoffset + rassrcoff, memh, 1325 scr->dispoffset + rasdstoff, 1326 nrows * ncols * fheight); 1327 } 1328 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1329 nrows * ncols * sizeof(struct vga_scrmem)); 1330 } 1331 1332 void 1333 vga_raster_eraserows(void *id, int startrow, int nrows, long fillattr) 1334 { 1335 struct vgascreen *scr = id; 1336 struct vga_handle *vh = scr->hdl; 1337 bus_space_tag_t memt = vh->vh_memt; 1338 bus_space_handle_t memh = vh->vh_memh; 1339 bus_size_t off, count; 1340 bus_size_t rasoff, rascount; 1341 int i; 1342 1343 off = startrow * scr->type->ncols; 1344 count = nrows * scr->type->ncols; 1345 rasoff = off * scr->type->fontheight; 1346 rascount = count * scr->type->fontheight; 1347 1348 if (scr->active) { 1349 u_int8_t bgcolor = (fillattr >> 4) & 0x0F; 1350 1351 /* Paint background. */ 1352 vga_gdc_write(vh, mode, 0x02); 1353 if (scr->type->ncols % 4 == 0) { 1354 u_int32_t fill = bgcolor | (bgcolor << 8) | 1355 (bgcolor << 16) | (bgcolor << 24); 1356 /* We can speed up I/O */ 1357 for (i = rasoff; i < rasoff + rascount; i += 4) 1358 bus_space_write_4(memt, memh, 1359 scr->dispoffset + i, fill); 1360 } else { 1361 u_int16_t fill = bgcolor | (bgcolor << 8); 1362 for (i = rasoff; i < rasoff + rascount; i += 2) 1363 bus_space_write_2(memt, memh, 1364 scr->dispoffset + i, fill); 1365 } 1366 } 1367 for (i = 0; i < count; i++) { 1368 scr->mem[off + i].ch = ' '; 1369 scr->mem[off + i].attr = fillattr; 1370 scr->mem[off + i].second = 0; 1371 scr->mem[off + i].enc = scr->encoding; 1372 } 1373 } 1374 1375 static int 1376 vga_raster_allocattr(void *id, int fg, int bg, int flags, long *attrp) 1377 { 1378 struct vgascreen *scr = id; 1379 struct vga_config *vc = scr->cfg; 1380 1381 if (__predict_false((unsigned int)fg >= sizeof(fgansitopc) || 1382 (unsigned int)bg >= sizeof(bgansitopc))) 1383 return (EINVAL); 1384 1385 if (vc->hdl.vh_mono) { 1386 if (flags & WSATTR_WSCOLORS) 1387 return (EINVAL); 1388 if (flags & WSATTR_REVERSE) 1389 *attrp = 0x70; 1390 else 1391 *attrp = 0x07; 1392 if (flags & WSATTR_UNDERLINE) 1393 *attrp |= FG_UNDERLINE; 1394 if (flags & WSATTR_HILIT) 1395 *attrp |= FG_INTENSE; 1396 } else { 1397 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1398 return (EINVAL); 1399 if (flags & WSATTR_WSCOLORS) 1400 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1401 else 1402 *attrp = 7; 1403 if (flags & WSATTR_HILIT) 1404 *attrp += 8; 1405 } 1406 if (flags & WSATTR_BLINK) 1407 *attrp |= FG_BLINK; 1408 return (0); 1409 } 1410 1411 void 1412 vga_restore_screen(struct vgascreen *scr, 1413 const struct wsscreen_descr *type, struct vga_scrmem *mem) 1414 { 1415 int i, j, off, tmp; 1416 1417 tmp = scr->encoding; 1418 for (i = 0; i < type->nrows; i++) { 1419 for (j = 0; j < type->ncols; j++) { 1420 off = i * type->ncols + j; 1421 if (mem[off].second != 1) { 1422 scr->encoding = mem[off].enc; 1423 vga_raster_putchar(scr, i, j, mem[off].ch, 1424 mem[off].attr); 1425 } 1426 } 1427 } 1428 scr->encoding = tmp; 1429 } 1430 1431 void 1432 vga_raster_setscreentype(struct vga_config *vc, 1433 const struct wsscreen_descr *type) 1434 { 1435 struct vga_handle *vh = &vc->hdl; 1436 struct vga_moderegs moderegs; 1437 1438 vga_setup_regs((struct videomode *)type->modecookie, &moderegs); 1439 vga_set_mode(vh, &moderegs); 1440 } 1441 1442 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1443 void 1444 vga_raster_replaceattr(void *id, long oldattr, long newattr) 1445 { 1446 struct vgascreen *scr = id; 1447 const struct wsscreen_descr *type = scr->type; 1448 int off; 1449 1450 for (off = 0; off < type->nrows * type->ncols; off++) { 1451 if (scr->mem[off].attr == oldattr) 1452 scr->mem[off].attr = newattr; 1453 } 1454 1455 /* Repaint the whole screen, if needed */ 1456 if (scr->active) 1457 vga_restore_screen(scr, type, scr->mem); 1458 } 1459 #endif /* WSDISPLAY_CUSTOM_OUTPUT */
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