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sys/dev/ic/vga_raster.c
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1 /* $NetBSD: vga_raster.c,v 1.16.2.1 2007/08/06 11:21:57 ghen 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 1.16.2.1 2007/08/06 11:21:57 ghen 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, 0 160 }, 161 /* 640x480 for 80x30 mode */ 162 { 163 25175, 640, 664, 760, 800, 480, 491, 493, 525, 0 164 } 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 *, u_long, caddr_t, int, struct proc *); 305 static paddr_t vga_raster_mmap(void *, off_t, int); 306 static int vga_raster_alloc_screen(void *, const struct wsscreen_descr *, 307 void **, int *, int *, long *); 308 static void vga_raster_free_screen(void *, void *); 309 static int vga_raster_show_screen(void *, void *, int, 310 void (*)(void *, int, int), void *); 311 static int vga_raster_load_font(void *, void *, struct wsdisplay_font *); 312 313 static void vga_switch_screen(struct vga_config *); 314 static void vga_raster_setscreentype(struct vga_config *, 315 const struct wsscreen_descr *); 316 317 const struct wsdisplay_accessops vga_raster_accessops = { 318 vga_raster_ioctl, 319 vga_raster_mmap, 320 vga_raster_alloc_screen, 321 vga_raster_free_screen, 322 vga_raster_show_screen, 323 vga_raster_load_font, 324 }; 325 326 int 327 vga_cnattach(bus_space_tag_t iot, bus_space_tag_t memt, int type, int check) 328 { 329 long defattr; 330 const struct wsscreen_descr *scr; 331 #ifdef VGA_CONSOLE_SCREENTYPE 332 char *typestr; 333 #endif 334 335 if (check && !vga_common_probe(iot, memt)) 336 return (ENXIO); 337 338 /* set up bus-independent VGA configuration */ 339 vga_raster_init(&vga_console_vc, iot, memt); 340 #ifdef VGA_CONSOLE_SCREENTYPE 341 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 342 &vga_screenlist_mono : &vga_screenlist, VGA_CONSOLE_SCREENTYPE); 343 if (!scr) 344 /* Invalid screen type, continue with the default mode. */ 345 typestr = "80x25"; 346 else if (scr->nrows > 30) 347 /* Unsupported screen type, try 80x30. */ 348 typestr = "80x30"; 349 scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? 350 &vga_screenlist_mono : &vga_screenlist, typestr); 351 if (scr != vga_console_vc.currenttype) 352 vga_console_vc.currenttype = scr; 353 #else 354 scr = vga_console_vc.currenttype; 355 #endif 356 vga_raster_init_screen(&vga_console_vc, &vga_console_screen, scr, 1, 357 &defattr); 358 359 vga_console_screen.active = 1; 360 vga_console_vc.active = &vga_console_screen; 361 362 wsdisplay_cnattach(scr, &vga_console_screen, 363 vga_console_screen.cursorcol, vga_console_screen.cursorrow, 364 defattr); 365 366 vgaconsole = 1; 367 vga_console_type = type; 368 return (0); 369 } 370 371 void 372 vga_raster_init(struct vga_config *vc, bus_space_tag_t iot, 373 bus_space_tag_t memt) 374 { 375 struct vga_handle *vh = &vc->hdl; 376 u_int8_t mor; 377 struct vga_raster_font *vf; 378 379 vh->vh_iot = iot; 380 vh->vh_memt = memt; 381 382 if (bus_space_map(vh->vh_iot, 0x3c0, 0x10, 0, &vh->vh_ioh_vga)) 383 panic("vga_raster_init: couldn't map vga io"); 384 385 /* read "misc output register" */ 386 mor = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAR); 387 vh->vh_mono = !(mor & 1); 388 389 if (bus_space_map(vh->vh_iot, (vh->vh_mono ? 0x3b0 : 0x3d0), 0x10, 0, 390 &vh->vh_ioh_6845)) 391 panic("vga_raster_init: couldn't map 6845 io"); 392 393 if (bus_space_map(vh->vh_memt, 0xa0000, 0x20000, 0, &vh->vh_allmemh)) 394 panic("vga_raster_init: couldn't map memory"); 395 396 if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh, 0, 0x10000, 397 &vh->vh_memh)) 398 panic("vga_raster_init: mem subrange failed"); 399 400 /* should only reserve the space (no need to map - save KVM) */ 401 vc->vc_biostag = memt; 402 if (bus_space_map(vc->vc_biostag, 0xc0000, 0x8000, 0, &vc->vc_bioshdl)) 403 vc->vc_biosmapped = 0; 404 else 405 vc->vc_biosmapped = 1; 406 407 vc->nscreens = 0; 408 LIST_INIT(&vc->screens); 409 vc->active = NULL; 410 vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen; 411 callout_init(&vc->vc_switch_callout); 412 413 wsfont_init(); 414 vc->nfonts = 1; 415 LIST_INIT(&vc->vc_fontlist); 416 vf = &vga_console_fontset_ascii; 417 if (vga_no_builtinfont) { 418 struct wsdisplay_font *wf; 419 int cookie; 420 421 /* prefer 8x16 pixel font */ 422 cookie = wsfont_find(NULL, 8, 16, 0, WSDISPLAY_FONTORDER_L2R, 423 0); 424 if (cookie == -1) 425 cookie = wsfont_find(NULL, 0, 0, 0, 426 WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R); 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 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; 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 = 0x10000; 450 vh = &vc->hdl; 451 452 LIST_INIT(&scr->fontset); 453 vga_raster_setup_font(vc, scr); 454 455 if (existing) { 456 int i; 457 458 cpos = vga_6845_read(vh, cursorh) << 8; 459 cpos |= vga_6845_read(vh, cursorl); 460 461 /* make sure we have a valid cursor position */ 462 if (cpos < 0 || cpos >= type->nrows * type->ncols) 463 cpos = 0; 464 465 scr->dispoffset = vga_6845_read(vh, startadrh) << 9; 466 scr->dispoffset |= vga_6845_read(vh, startadrl) << 1; 467 468 /* make sure we have a valid memory offset */ 469 if (scr->dispoffset < scr->mindispoffset || 470 scr->dispoffset > scr->maxdispoffset) 471 scr->dispoffset = scr->mindispoffset; 472 473 scr->mem = boot_scrmem; 474 scr->active = 1; 475 476 /* Save the current screen to memory. XXXBJY assume 80x25 */ 477 for (i = 0; i < 80 * 25; i++) { 478 scr->mem[i].ch = bus_space_read_1(vh->vh_memt, 479 vh->vh_allmemh, 0x18000 + i * 2); 480 scr->mem[i].attr = bus_space_read_1(vh->vh_memt, 481 vh->vh_allmemh, 0x18000 + i * 2 + 1); 482 scr->mem[i].enc = scr->encoding; 483 } 484 485 vga_raster_setscreentype(vc, type); 486 487 /* Clear the entire screen. */ 488 vga_gdc_write(vh, mode, 0x02); 489 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 490 0x4000); 491 492 vga_restore_screen(scr, type, scr->mem); 493 } else { 494 cpos = 0; 495 scr->dispoffset = scr->mindispoffset; 496 scr->mem = NULL; 497 scr->active = 0; 498 } 499 500 scr->cursorrow = cpos / type->ncols; 501 scr->cursorcol = cpos % type->ncols; 502 vga_raster_cursor_init(scr, existing); 503 504 #ifdef __alpha__ 505 if (!vc->hdl.vh_mono) 506 /* 507 * DEC firmware uses a blue background. 508 */ 509 res = vga_raster_allocattr(scr, WSCOL_WHITE, WSCOL_BLUE, 510 WSATTR_WSCOLORS, attrp); 511 else 512 #endif 513 res = vga_raster_allocattr(scr, 0, 0, 0, attrp); 514 #ifdef DIAGNOSTIC 515 if (res) 516 panic("vga_raster_init_screen: attribute botch"); 517 #endif 518 519 vc->nscreens++; 520 LIST_INSERT_HEAD(&vc->screens, scr, next); 521 } 522 523 void 524 vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, 525 bus_space_tag_t memt, int type, int quirks, const struct vga_funcs *vf) 526 { 527 int console; 528 struct vga_config *vc; 529 struct wsemuldisplaydev_attach_args aa; 530 531 console = vga_is_console(iot, type); 532 533 if (console) { 534 vc = &vga_console_vc; 535 vga_console_attached = 1; 536 } else { 537 vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK); 538 vga_raster_init(vc, iot, memt); 539 } 540 541 vc->vc_type = type; 542 vc->vc_funcs = vf; 543 544 sc->sc_vc = vc; 545 vc->softc = sc; 546 547 aa.console = console; 548 aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); 549 aa.accessops = &vga_raster_accessops; 550 aa.accesscookie = vc; 551 552 config_found(&sc->sc_dev, &aa, wsemuldisplaydevprint); 553 } 554 555 int 556 vga_is_console(bus_space_tag_t iot, int type) 557 { 558 if (vgaconsole && 559 !vga_console_attached && 560 iot == vga_console_vc.hdl.vh_iot && 561 (vga_console_type == -1 || (type == vga_console_type))) 562 return (1); 563 return (0); 564 } 565 566 static int 567 vga_get_video(struct vga_config *vc) 568 { 569 570 return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0; 571 } 572 573 static void 574 vga_set_video(struct vga_config *vc, int state) 575 { 576 int val; 577 578 vga_ts_write(&vc->hdl, syncreset, 0x01); 579 if (state) { /* unblank screen */ 580 val = vga_ts_read(&vc->hdl, mode); 581 vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK); 582 #ifndef VGA_NO_VBLANK 583 val = vga_6845_read(&vc->hdl, mode); 584 vga_6845_write(&vc->hdl, mode, val | 0x80); 585 #endif 586 } else { /* blank screen */ 587 val = vga_ts_read(&vc->hdl, mode); 588 vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK); 589 #ifndef VGA_NO_VBLANK 590 val = vga_6845_read(&vc->hdl, mode); 591 vga_6845_write(&vc->hdl, mode, val & ~0x80); 592 #endif 593 } 594 vga_ts_write(&vc->hdl, syncreset, 0x03); 595 } 596 597 int 598 vga_raster_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p) 599 { 600 struct vga_config *vc = v; 601 const struct vga_funcs *vf = vc->vc_funcs; 602 603 switch (cmd) { 604 case WSDISPLAYIO_GTYPE: 605 *(int *)data = vc->vc_type; 606 return 0; 607 608 case WSDISPLAYIO_GINFO: 609 /* XXX should get detailed hardware information here */ 610 return EPASSTHROUGH; 611 612 case WSDISPLAYIO_GVIDEO: 613 #if 1 614 *(int *)data = (vga_get_video(vc) ? 615 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); 616 return 0; 617 #endif 618 619 case WSDISPLAYIO_SVIDEO: 620 #if 1 621 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); 622 return 0; 623 #endif 624 625 case WSDISPLAYIO_GETCMAP: 626 case WSDISPLAYIO_PUTCMAP: 627 case WSDISPLAYIO_GCURPOS: 628 case WSDISPLAYIO_SCURPOS: 629 case WSDISPLAYIO_GCURMAX: 630 case WSDISPLAYIO_GCURSOR: 631 case WSDISPLAYIO_SCURSOR: 632 /* NONE of these operations are by the generic VGA driver. */ 633 return EPASSTHROUGH; 634 } 635 636 if (vc->vc_funcs == NULL) 637 return (EPASSTHROUGH); 638 639 if (vf->vf_ioctl == NULL) 640 return (EPASSTHROUGH); 641 642 return ((*vf->vf_ioctl)(v, cmd, data, flag, p)); 643 } 644 645 static paddr_t 646 vga_raster_mmap(void *v, off_t offset, int prot) 647 { 648 struct vga_config *vc = v; 649 const struct vga_funcs *vf = vc->vc_funcs; 650 651 if (vc->vc_funcs == NULL) 652 return (-1); 653 654 if (vf->vf_mmap == NULL) 655 return (-1); 656 657 return ((*vf->vf_mmap)(v, offset, prot)); 658 } 659 660 int 661 vga_raster_alloc_screen(void *v, const struct wsscreen_descr *type, 662 void **cookiep, int *curxp, int *curyp, long *defattrp) 663 { 664 struct vga_config *vc = v; 665 struct vgascreen *scr; 666 667 if (vc->nscreens == 1) { 668 vc->screens.lh_first->mem = boot_scrmem; 669 } 670 671 scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); 672 vga_raster_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); 673 674 if (vc->nscreens == 1) { 675 scr->active = 1; 676 vc->active = scr; 677 vc->currenttype = type; 678 } else { 679 scr->mem = malloc(sizeof(struct vga_scrmem) * 680 type->ncols * type->nrows, M_DEVBUF, M_WAITOK); 681 vga_raster_eraserows(scr, 0, type->nrows, *defattrp); 682 } 683 684 *cookiep = scr; 685 *curxp = scr->cursorcol; 686 *curyp = scr->cursorrow; 687 688 return (0); 689 } 690 691 void 692 vga_raster_free_screen(void *v, void *cookie) 693 { 694 struct vgascreen *vs = cookie; 695 struct vga_config *vc = vs->cfg; 696 697 LIST_REMOVE(vs, next); 698 if (vs != &vga_console_screen) 699 free(vs, M_DEVBUF); 700 else 701 panic("vga_raster_free_screen: console"); 702 703 if (vc->active == vs) 704 vc->active = 0; 705 } 706 707 int 708 vga_raster_show_screen(void *v, void *cookie, int waitok, 709 void (*cb)(void *, int, int), void *cbarg) 710 { 711 struct vgascreen *scr = cookie, *oldscr; 712 struct vga_config *vc = scr->cfg; 713 714 oldscr = vc->active; /* can be NULL! */ 715 if (scr == oldscr) { 716 return (0); 717 } 718 719 vc->wantedscreen = cookie; 720 vc->switchcb = cb; 721 vc->switchcbarg = cbarg; 722 if (cb) { 723 callout_reset(&vc->vc_switch_callout, 0, 724 (void(*)(void *))vga_switch_screen, vc); 725 return (EAGAIN); 726 } 727 728 vga_switch_screen(vc); 729 return (0); 730 } 731 732 void 733 vga_switch_screen(struct vga_config *vc) 734 { 735 struct vgascreen *scr, *oldscr; 736 struct vga_handle *vh = &vc->hdl; 737 const struct wsscreen_descr *type; 738 739 scr = vc->wantedscreen; 740 if (!scr) { 741 printf("vga_switch_screen: disappeared\n"); 742 (*vc->switchcb)(vc->switchcbarg, EIO, 0); 743 return; 744 } 745 type = scr->type; 746 oldscr = vc->active; /* can be NULL! */ 747 #ifdef DIAGNOSTIC 748 if (oldscr) { 749 if (!oldscr->active) 750 panic("vga_raster_show_screen: not active"); 751 if (oldscr->type != vc->currenttype) 752 panic("vga_raster_show_screen: bad type"); 753 } 754 #endif 755 if (scr == oldscr) { 756 return; 757 } 758 #ifdef DIAGNOSTIC 759 if (scr->active) 760 panic("vga_raster_show_screen: active"); 761 #endif 762 763 if (oldscr) 764 oldscr->active = 0; 765 766 if (vc->currenttype != type) { 767 vga_raster_setscreentype(vc, type); 768 vc->currenttype = type; 769 } 770 771 scr->dispoffset = scr->mindispoffset; 772 773 if (!oldscr || (scr->dispoffset != oldscr->dispoffset)) { 774 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 775 vga_6845_write(vh, startadrl, scr->dispoffset); 776 } 777 778 /* Clear the entire screen. */ 779 vga_gdc_write(vh, mode, 0x02); 780 bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x2000); 781 782 scr->active = 1; 783 vga_restore_screen(scr, type, scr->mem); 784 785 vc->active = scr; 786 787 vga_raster_cursor(scr, scr->cursoron, scr->cursorrow, scr->cursorcol); 788 789 vc->wantedscreen = 0; 790 if (vc->switchcb) 791 (*vc->switchcb)(vc->switchcbarg, 0, 0); 792 } 793 794 static int 795 vga_raster_load_font(void *v, void *id, struct wsdisplay_font *data) 796 { 797 /* XXX */ 798 printf("vga_raster_load_font: called\n"); 799 800 return (0); 801 } 802 803 void 804 vga_raster_setup_font(struct vga_config *vc, struct vgascreen *scr) 805 { 806 struct vga_raster_font *vf; 807 struct wsdisplay_font *wf; 808 int cookie; 809 810 LIST_FOREACH(vf, &vc->vc_fontlist, next) { 811 if (wsfont_matches(vf->font, 0, 0, scr->type->fontheight, 0)) { 812 scr->encoding = vf->font->encoding; 813 LIST_INSERT_HEAD(&scr->fontset, vf, next); 814 return; 815 } 816 } 817 818 cookie = wsfont_find(NULL, 0, scr->type->fontheight, 0, 819 WSDISPLAY_FONTORDER_L2R, 0); 820 if (cookie == -1) 821 return; 822 823 if (wsfont_lock(cookie, &wf)) 824 return; 825 826 vf = malloc(sizeof(struct vga_raster_font), M_DEVBUF, M_NOWAIT); 827 if (!vf) { 828 wsfont_unlock(cookie); 829 return; 830 } 831 832 vf->font = wf; 833 scr->encoding = vf->font->encoding; 834 LIST_INSERT_HEAD(&scr->fontset, vf, next); 835 } 836 837 void 838 vga_setup_regs(struct videomode *mode, struct vga_moderegs *regs) 839 { 840 int i; 841 int depth = 4; /* XXXBJY hardcoded for now */ 842 const u_int8_t palette[] = { 843 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 844 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f 845 }; 846 847 /* 848 * Compute hsync and vsync polarity. 849 */ 850 if ((mode->flags & (VID_PHSYNC | VID_NHSYNC)) 851 && (mode->flags & (VID_PVSYNC | VID_NVSYNC))) { 852 regs->miscout = 0x23; 853 if (mode->flags & VID_NHSYNC) 854 regs->miscout |= 0x40; 855 if (mode->flags & VID_NVSYNC) 856 regs->miscout |= 0x80; 857 } else { 858 if (mode->flags & VID_DBLSCAN) 859 mode->vdisplay *= 2; 860 if (mode->vdisplay < 400) 861 regs->miscout = 0xa3; 862 else if (mode->vdisplay < 480) 863 regs->miscout = 0x63; 864 else if (mode->vdisplay < 768) 865 regs->miscout = 0xe3; 866 else 867 regs->miscout = 0x23; 868 } 869 870 /* 871 * Time sequencer 872 */ 873 if (depth == 4) 874 regs->ts[0] = 0x02; 875 else 876 regs->ts[0] = 0x00; 877 if (mode->flags & VID_CLKDIV2) 878 regs->ts[1] = 0x09; 879 else 880 regs->ts[1] = 0x01; 881 regs->ts[2] = 0x0f; 882 regs->ts[3] = 0x00; 883 if (depth < 8) 884 regs->ts[4] = 0x06; 885 else 886 regs->ts[4] = 0x0e; 887 888 /* 889 * CRTC controller 890 */ 891 regs->crtc[0] = (mode->htotal >> 3) - 5; 892 regs->crtc[1] = (mode->hdisplay >> 3) - 1; 893 regs->crtc[2] = (mode->hsync_start >> 3) - 1; 894 regs->crtc[3] = (((mode->hsync_end >> 3) - 1) & 0x1f) | 0x80; 895 regs->crtc[4] = mode->hsync_start >> 3; 896 regs->crtc[5] = ((((mode->hsync_end >> 3) - 1) & 0x20) << 2) 897 | (((mode->hsync_end >> 3)) & 0x1f); 898 regs->crtc[6] = (mode->vtotal - 2) & 0xff; 899 regs->crtc[7] = (((mode->vtotal - 2) & 0x100) >> 8) 900 | (((mode->vdisplay - 1) & 0x100) >> 7) 901 | ((mode->vsync_start & 0x100) >> 6) 902 | (((mode->vsync_start - 1) & 0x100) >> 5) 903 | 0x10 904 | (((mode->vtotal - 2) & 0x200) >> 4) 905 | (((mode->vdisplay - 1) & 0x200) >> 3) 906 | ((mode->vsync_start & 0x200) >> 2); 907 regs->crtc[8] = 0x00; 908 regs->crtc[9] = (((mode->vsync_start - 1) & 0x200) >> 4) | 0x40; 909 if (mode->flags & VID_DBLSCAN) 910 regs->crtc[9] |= 0x80; 911 regs->crtc[10] = 0x00; 912 regs->crtc[11] = 0x00; 913 regs->crtc[12] = 0x00; 914 regs->crtc[13] = 0x00; 915 regs->crtc[14] = 0x00; 916 regs->crtc[15] = 0x00; 917 regs->crtc[16] = mode->vsync_start & 0xff; 918 regs->crtc[17] = (mode->vsync_end & 0x0f) | 0x20; 919 regs->crtc[18] = (mode->vdisplay - 1) & 0xff; 920 regs->crtc[19] = mode->hdisplay >> 4; /* XXXBJY */ 921 regs->crtc[20] = 0x00; 922 regs->crtc[21] = (mode->vsync_start - 1) & 0xff; 923 regs->crtc[22] = (mode->vsync_end - 1) & 0xff; 924 if (depth < 8) 925 regs->crtc[23] = 0xe3; 926 else 927 regs->crtc[23] = 0xc3; 928 regs->crtc[24] = 0xff; 929 930 /* 931 * Graphics display controller 932 */ 933 regs->gdc[0] = 0x00; 934 regs->gdc[1] = 0x00; 935 regs->gdc[2] = 0x00; 936 regs->gdc[3] = 0x00; 937 regs->gdc[4] = 0x00; 938 if (depth == 4) 939 regs->gdc[5] = 0x02; 940 else 941 regs->gdc[5] = 0x40; 942 regs->gdc[6] = 0x01; 943 regs->gdc[7] = 0x0f; 944 regs->gdc[8] = 0xff; 945 946 /* 947 * Attribute controller 948 */ 949 /* Set palette registers. */ 950 for (i = 0; i < 16; i++) 951 regs->atc[i] = palette[i]; 952 if (depth == 4) 953 regs->atc[16] = 0x01; /* XXXBJY was 0x81 in XFree86 */ 954 else 955 regs->atc[16] = 0x41; 956 regs->atc[17] = 0x00; /* XXXBJY just a guess */ 957 regs->atc[18] = 0x0f; 958 regs->atc[19] = 0x00; 959 regs->atc[20] = 0x00; 960 } 961 962 void 963 vga_set_mode(struct vga_handle *vh, struct vga_moderegs *regs) 964 { 965 int i; 966 967 /* Disable display. */ 968 vga_ts_write(vh, mode, vga_ts_read(vh, mode) | VGA_TS_MODE_BLANK); 969 970 /* Write misc output register. */ 971 bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAW, 972 regs->miscout); 973 974 /* Set synchronous reset. */ 975 vga_ts_write(vh, syncreset, 0x01); 976 vga_ts_write(vh, mode, regs->ts[1] | VGA_TS_MODE_BLANK); 977 for (i = 2; i < VGA_TS_NREGS; i++) 978 _vga_ts_write(vh, i, regs->ts[i]); 979 /* Clear synchronous reset. */ 980 vga_ts_write(vh, syncreset, 0x03); 981 982 /* Unprotect CRTC registers 0-7. */ 983 vga_6845_write(vh, vsynce, vga_6845_read(vh, vsynce) & ~0x80); 984 /* Write CRTC registers. */ 985 for (i = 0; i < MC6845_NREGS; i++) 986 _vga_6845_write(vh, i, regs->crtc[i]); 987 988 /* Write graphics display registers. */ 989 for (i = 0; i < VGA_GDC_NREGS; i++) 990 _vga_gdc_write(vh, i, regs->gdc[i]); 991 992 /* Write attribute controller registers. */ 993 for (i = 0; i < VGA_ATC_NREGS; i++) 994 _vga_attr_write(vh, i, regs->atc[i]); 995 996 /* Enable display. */ 997 vga_ts_write(vh, mode, vga_ts_read(vh, mode) & ~VGA_TS_MODE_BLANK); 998 } 999 1000 void 1001 vga_raster_cursor_init(struct vgascreen *scr, int existing) 1002 { 1003 struct vga_handle *vh = scr->hdl; 1004 bus_space_tag_t memt; 1005 bus_space_handle_t memh; 1006 int off; 1007 1008 if (existing) { 1009 /* 1010 * This is the first screen. At this point, scr->active is 1011 * false, so we can't use vga_raster_cursor() to do this. 1012 */ 1013 memt = vh->vh_memt; 1014 memh = vh->vh_memh; 1015 off = (scr->cursorrow * scr->type->ncols + scr->cursorcol) + 1016 scr->dispoffset / 8; 1017 1018 scr->cursortmp = scr->mem[off]; 1019 vga_raster_putchar(scr, scr->cursorrow, scr->cursorcol, 1020 scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); 1021 } else { 1022 scr->cursortmp.ch = 0; 1023 scr->cursortmp.attr = 0; 1024 scr->cursortmp.second = 0; 1025 scr->cursortmp.enc = scr->encoding; 1026 } 1027 1028 scr->cursoron = 1; 1029 } 1030 1031 void 1032 vga_raster_cursor(void *id, int on, int row, int col) 1033 { 1034 struct vgascreen *scr = id; 1035 int off, tmp; 1036 1037 /* Remove old cursor image */ 1038 if (scr->cursoron) { 1039 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1040 if (scr->active) { 1041 tmp = scr->encoding; 1042 scr->encoding = scr->cursortmp.enc; 1043 if (scr->cursortmp.second) 1044 vga_raster_putchar(id, scr->cursorrow, 1045 scr->cursorcol - 1, scr->cursortmp.ch, 1046 scr->cursortmp.attr); 1047 else 1048 vga_raster_putchar(id, scr->cursorrow, 1049 scr->cursorcol, scr->cursortmp.ch, 1050 scr->cursortmp.attr); 1051 scr->encoding = tmp; 1052 } 1053 } 1054 1055 scr->cursorrow = row; 1056 scr->cursorcol = col; 1057 1058 if ((scr->cursoron = on) == 0) 1059 return; 1060 1061 off = scr->cursorrow * scr->type->ncols + scr->cursorcol; 1062 scr->cursortmp = scr->mem[off]; 1063 if (scr->active) { 1064 tmp = scr->encoding; 1065 scr->encoding = scr->cursortmp.enc; 1066 if (scr->cursortmp.second) 1067 vga_raster_putchar(id, scr->cursorrow, 1068 scr->cursorcol - 1, scr->cursortmp.ch, 1069 scr->cursortmp.attr ^ 0x77); 1070 else 1071 vga_raster_putchar(id, scr->cursorrow, 1072 scr->cursorcol, scr->cursortmp.ch, 1073 scr->cursortmp.attr ^ 0x77); 1074 scr->encoding = tmp; 1075 } 1076 } 1077 1078 static int 1079 vga_raster_mapchar(void *id, int uni, u_int *index) 1080 { 1081 struct vgascreen *scr = id; 1082 1083 if (scr->encoding == WSDISPLAY_FONTENC_IBM) 1084 return pcdisplay_mapchar(id, uni, index); 1085 else { 1086 *index = uni; 1087 return 5; 1088 } 1089 } 1090 1091 void 1092 vga_raster_putchar(void *id, int row, int col, u_int c, long attr) 1093 { 1094 struct vgascreen *scr = id; 1095 size_t off; 1096 struct vga_raster_font *fs; 1097 u_int tmp_ch; 1098 1099 off = row * scr->type->ncols + col; 1100 1101 if (__predict_false(off >= (scr->type->ncols * scr->type->nrows))) 1102 return; 1103 1104 LIST_FOREACH(fs, &scr->fontset, next) { 1105 if ((scr->encoding == fs->font->encoding) && 1106 (c >= fs->font->firstchar) && 1107 (c < fs->font->firstchar + fs->font->numchars) && 1108 (scr->type->fontheight == fs->font->fontheight)) { 1109 if (scr->active) { 1110 tmp_ch = c - fs->font->firstchar; 1111 _vga_raster_putchar(scr, row, col, tmp_ch, 1112 attr, fs); 1113 } 1114 1115 scr->mem[off].ch = c; 1116 scr->mem[off].attr = attr; 1117 scr->mem[off].second = 0; 1118 scr->mem[off].enc = fs->font->encoding; 1119 1120 if (fs->font->stride == 2) { 1121 scr->mem[off + 1].ch = c; 1122 scr->mem[off + 1].attr = attr; 1123 scr->mem[off + 1].second = 1; 1124 scr->mem[off + 1].enc = fs->font->encoding; 1125 } 1126 1127 return; 1128 } 1129 } 1130 1131 /* 1132 * No match found. 1133 */ 1134 if (scr->active) 1135 /* 1136 * Put a single width space character no matter what the 1137 * actual width of the character is. 1138 */ 1139 _vga_raster_putchar(scr, row, col, ' ', attr, 1140 &vga_console_fontset_ascii); 1141 scr->mem[off].ch = c; 1142 scr->mem[off].attr = attr; 1143 scr->mem[off].second = 0; 1144 scr->mem[off].enc = scr->encoding; 1145 } 1146 1147 static void 1148 _vga_raster_putchar(void *id, int row, int col, u_int c, long attr, 1149 struct vga_raster_font *fs) 1150 { 1151 struct vgascreen *scr = id; 1152 struct vga_handle *vh = scr->hdl; 1153 bus_space_tag_t memt = vh->vh_memt; 1154 bus_space_handle_t memh = vh->vh_memh; 1155 int i; 1156 int rasoff, rasoff2; 1157 int fheight = scr->type->fontheight; 1158 volatile u_int8_t dummy, pattern; 1159 u_int8_t fgcolor, bgcolor; 1160 1161 rasoff = scr->dispoffset + row * scr->type->ncols * fheight + col; 1162 rasoff2 = rasoff; 1163 1164 #if 0 1165 bgcolor = bgansitopc[attr >> 4]; 1166 fgcolor = fgansitopc[attr & 0x0f]; 1167 #else 1168 bgcolor = ((attr >> 4) & 0x0f); 1169 fgcolor = attr & 0x0f; 1170 #endif 1171 1172 if (fs->font->stride == 1) { 1173 /* Paint background. */ 1174 vga_gdc_write(vh, mode, 0x02); 1175 for (i = 0; i < fheight; i++) { 1176 bus_space_write_1(memt, memh, rasoff, bgcolor); 1177 rasoff += scr->type->ncols; 1178 } 1179 1180 /* Draw a single width character. */ 1181 vga_gdc_write(vh, mode, 0x03); 1182 vga_gdc_write(vh, setres, fgcolor); 1183 for (i = 0; i < fheight; i++) { 1184 pattern = ((u_int8_t *)fs->font->data)[c * fheight + i]; 1185 /* When pattern is 0, skip output for speed-up. */ 1186 if (pattern != 0) { 1187 dummy = bus_space_read_1(memt, memh, rasoff2); 1188 bus_space_write_1(memt, memh, rasoff2, pattern); 1189 } 1190 rasoff2 += scr->type->ncols; 1191 } 1192 } else if (fs->font->stride == 2) { 1193 /* Paint background. */ 1194 vga_gdc_write(vh, mode, 0x02); 1195 for (i = 0; i < fheight; i++) { 1196 bus_space_write_1(memt, memh, rasoff, bgcolor); 1197 bus_space_write_1(memt, memh, rasoff + 1, bgcolor); 1198 rasoff += scr->type->ncols; 1199 } 1200 1201 /* Draw a double width character. */ 1202 vga_gdc_write(vh, mode, 0x03); 1203 vga_gdc_write(vh, setres, fgcolor); 1204 for (i = 0; i < fheight; i++) { 1205 pattern = ((u_int8_t *)fs->font->data) 1206 [(c * fheight + i) * 2]; 1207 if (pattern != 0) { 1208 dummy = bus_space_read_1(memt, memh, rasoff2); 1209 bus_space_write_1(memt, memh, rasoff2, pattern); 1210 } 1211 pattern = ((u_int8_t *)fs->font->data) 1212 [(c * fheight + i) * 2 + 1]; 1213 if (pattern != 0) { 1214 rasoff2++; 1215 dummy = bus_space_read_1(memt, memh, rasoff2); 1216 bus_space_write_1(memt, memh, rasoff2, pattern); 1217 rasoff2--; 1218 } 1219 rasoff2 += scr->type->ncols; 1220 } 1221 } 1222 } 1223 1224 void 1225 vga_raster_copycols(void *id, int row, int srccol, int dstcol, int ncols) 1226 { 1227 struct vgascreen *scr = id; 1228 struct vga_handle *vh = scr->hdl; 1229 bus_space_tag_t memt = vh->vh_memt; 1230 bus_space_handle_t memh = vh->vh_memh; 1231 bus_size_t srcoff, dstoff; 1232 bus_size_t rassrcoff, rasdstoff; 1233 int i; 1234 int fheight = scr->type->fontheight; 1235 1236 srcoff = row * scr->type->ncols + srccol; 1237 dstoff = row * scr->type->ncols + dstcol; 1238 rassrcoff = scr->dispoffset + row * scr->type->ncols * fheight + srccol; 1239 rasdstoff = scr->dispoffset + row * scr->type->ncols * fheight + dstcol; 1240 1241 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1242 ncols * sizeof(struct vga_scrmem)); 1243 1244 vga_gdc_write(vh, mode, 0x01); 1245 if (scr->active) { 1246 for (i = 0; i < fheight; i++) { 1247 bus_space_copy_region_1(memt, memh, 1248 rassrcoff + i * scr->type->ncols, memh, 1249 rasdstoff + i * scr->type->ncols, ncols); 1250 } 1251 } 1252 } 1253 1254 void 1255 vga_raster_erasecols(void *id, int row, int startcol, int ncols, long fillattr) 1256 { 1257 struct vgascreen *scr = id; 1258 int i; 1259 1260 if (scr->active == 0) 1261 return; 1262 1263 for (i = startcol; i < startcol + ncols; i++) 1264 vga_raster_putchar(id, row, i, ' ', fillattr); 1265 } 1266 1267 void 1268 vga_raster_copyrows(void *id, int srcrow, int dstrow, int nrows) 1269 { 1270 struct vgascreen *scr = id; 1271 struct vga_handle *vh = scr->hdl; 1272 bus_space_tag_t memt = vh->vh_memt; 1273 bus_space_handle_t memh = vh->vh_memh; 1274 int ncols; 1275 bus_size_t srcoff, dstoff; 1276 bus_size_t rassrcoff, rasdstoff; 1277 int fheight; 1278 1279 ncols = scr->type->ncols; 1280 fheight = scr->type->fontheight; 1281 1282 srcoff = srcrow * ncols; 1283 dstoff = dstrow * ncols; 1284 rassrcoff = srcoff * fheight; 1285 rasdstoff = dstoff * fheight; 1286 1287 if (scr->active) { 1288 vga_gdc_write(vh, mode, 0x01); 1289 if (dstrow == 0 && (srcrow + nrows == scr->type->nrows)) { 1290 int cursoron = scr->cursoron; 1291 1292 if (cursoron) 1293 /* Disable cursor. */ 1294 vga_raster_cursor(scr, 0, 1295 scr->cursorrow, scr->cursorcol); 1296 1297 /* scroll up whole screen */ 1298 if ((scr->dispoffset + srcrow * ncols * fheight) 1299 <= scr->maxdispoffset) 1300 scr->dispoffset += srcrow * ncols * fheight; 1301 else { 1302 bus_space_copy_region_1(memt, memh, 1303 scr->dispoffset + rassrcoff, 1304 memh, scr->mindispoffset, 1305 nrows * ncols * fheight); 1306 scr->dispoffset = scr->mindispoffset; 1307 } 1308 vga_6845_write(vh, startadrh, scr->dispoffset >> 8); 1309 vga_6845_write(vh, startadrl, scr->dispoffset); 1310 1311 if (cursoron) 1312 /* Enable cursor. */ 1313 vga_raster_cursor(scr, 1, scr->cursorrow, 1314 scr->cursorcol); 1315 } else 1316 bus_space_copy_region_1(memt, memh, 1317 scr->dispoffset + rassrcoff, memh, 1318 scr->dispoffset + rasdstoff, 1319 nrows * ncols * fheight); 1320 } 1321 memcpy(&scr->mem[dstoff], &scr->mem[srcoff], 1322 nrows * ncols * sizeof(struct vga_scrmem)); 1323 } 1324 1325 void 1326 vga_raster_eraserows(void *id, int startrow, int nrows, long fillattr) 1327 { 1328 struct vgascreen *scr = id; 1329 struct vga_handle *vh = scr->hdl; 1330 bus_space_tag_t memt = vh->vh_memt; 1331 bus_space_handle_t memh = vh->vh_memh; 1332 bus_size_t off, count; 1333 bus_size_t rasoff, rascount; 1334 int i; 1335 1336 off = startrow * scr->type->ncols; 1337 count = nrows * scr->type->ncols; 1338 rasoff = off * scr->type->fontheight; 1339 rascount = count * scr->type->fontheight; 1340 1341 if (scr->active) { 1342 u_int8_t bgcolor = (fillattr >> 4) & 0x0F; 1343 1344 /* Paint background. */ 1345 vga_gdc_write(vh, mode, 0x02); 1346 if (scr->type->ncols % 4 == 0) { 1347 u_int32_t fill = bgcolor | (bgcolor << 8) | 1348 (bgcolor << 16) | (bgcolor << 24); 1349 /* We can speed up I/O */ 1350 for (i = rasoff; i < rasoff + rascount; i += 4) 1351 bus_space_write_4(memt, memh, 1352 scr->dispoffset + i, fill); 1353 } else { 1354 u_int16_t fill = bgcolor | (bgcolor << 8); 1355 for (i = rasoff; i < rasoff + rascount; i += 2) 1356 bus_space_write_2(memt, memh, 1357 scr->dispoffset + i, fill); 1358 } 1359 } 1360 for (i = 0; i < count; i++) { 1361 scr->mem[off + i].ch = ' '; 1362 scr->mem[off + i].attr = fillattr; 1363 scr->mem[off + i].second = 0; 1364 scr->mem[off + i].enc = scr->encoding; 1365 } 1366 } 1367 1368 static int 1369 vga_raster_allocattr(void *id, int fg, int bg, int flags, long *attrp) 1370 { 1371 struct vgascreen *scr = id; 1372 struct vga_config *vc = scr->cfg; 1373 1374 if (__predict_false((unsigned int)fg >= sizeof(fgansitopc) || 1375 (unsigned int)bg >= sizeof(bgansitopc))) 1376 return (EINVAL); 1377 1378 if (vc->hdl.vh_mono) { 1379 if (flags & WSATTR_WSCOLORS) 1380 return (EINVAL); 1381 if (flags & WSATTR_REVERSE) 1382 *attrp = 0x70; 1383 else 1384 *attrp = 0x07; 1385 if (flags & WSATTR_UNDERLINE) 1386 *attrp |= FG_UNDERLINE; 1387 if (flags & WSATTR_HILIT) 1388 *attrp |= FG_INTENSE; 1389 } else { 1390 if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE)) 1391 return (EINVAL); 1392 if (flags & WSATTR_WSCOLORS) 1393 *attrp = fgansitopc[fg] | bgansitopc[bg]; 1394 else 1395 *attrp = 7; 1396 if (flags & WSATTR_HILIT) 1397 *attrp += 8; 1398 } 1399 if (flags & WSATTR_BLINK) 1400 *attrp |= FG_BLINK; 1401 return (0); 1402 } 1403 1404 void 1405 vga_restore_screen(struct vgascreen *scr, 1406 const struct wsscreen_descr *type, struct vga_scrmem *mem) 1407 { 1408 int i, j, off, tmp; 1409 1410 tmp = scr->encoding; 1411 for (i = 0; i < type->nrows; i++) { 1412 for (j = 0; j < type->ncols; j++) { 1413 off = i * type->ncols + j; 1414 if (mem[off].second != 1) { 1415 scr->encoding = mem[off].enc; 1416 vga_raster_putchar(scr, i, j, mem[off].ch, 1417 mem[off].attr); 1418 } 1419 } 1420 } 1421 scr->encoding = tmp; 1422 } 1423 1424 void 1425 vga_raster_setscreentype(struct vga_config *vc, 1426 const struct wsscreen_descr *type) 1427 { 1428 struct vga_handle *vh = &vc->hdl; 1429 struct vga_moderegs moderegs; 1430 1431 vga_setup_regs((struct videomode *)type->modecookie, &moderegs); 1432 vga_set_mode(vh, &moderegs); 1433 } 1434 1435 #ifdef WSDISPLAY_CUSTOM_OUTPUT 1436 void 1437 vga_raster_replaceattr(void *id, long oldattr, long newattr) 1438 { 1439 struct vgascreen *scr = id; 1440 const struct wsscreen_descr *type = scr->type; 1441 int off; 1442 1443 for (off = 0; off < type->nrows * type->ncols; off++) { 1444 if (scr->mem[off].attr == oldattr) 1445 scr->mem[off].attr = newattr; 1446 } 1447 1448 /* Repaint the whole screen, if needed */ 1449 if (scr->active) 1450 vga_restore_screen(scr, type, scr->mem); 1451 } 1452 #endif /* WSDISPLAY_CUSTOM_OUTPUT */
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