1 /*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer as 10 * the first lines of this file unmodified. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #include "opt_fb.h" 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/conf.h> 36 #include <sys/bus.h> 37 #include <sys/kernel.h> 38 #include <sys/malloc.h> 39 #include <sys/uio.h> 40 #include <sys/fbio.h> 41 42 #include <vm/vm.h> 43 #include <vm/pmap.h> 44 45 #include <dev/fb/fbreg.h> 46 47 /* local arrays */ 48 49 /* 50 * We need at least one entry each in order to initialize a video card 51 * for the kernel console. The arrays will be increased dynamically 52 * when necessary. 53 */ 54 55 static int vid_malloc; 56 static int adapters = 1; 57 static video_adapter_t *adp_ini; 58 static video_adapter_t **adapter = &adp_ini; 59 static video_switch_t *vidsw_ini; 60 video_switch_t **vidsw = &vidsw_ini; 61 62 #ifdef FB_INSTALL_CDEV 63 static struct cdevsw *vidcdevsw_ini; 64 static struct cdevsw **vidcdevsw = &vidcdevsw_ini; 65 #endif 66 67 #define ARRAY_DELTA 4 68 69 static int 70 vid_realloc_array(void) 71 { 72 video_adapter_t **new_adp; 73 video_switch_t **new_vidsw; 74 #ifdef FB_INSTALL_CDEV 75 struct cdevsw **new_cdevsw; 76 #endif 77 int newsize; 78 int s; 79 80 if (!vid_malloc) 81 return ENOMEM; 82 83 s = spltty(); 84 newsize = ((adapters + ARRAY_DELTA)/ARRAY_DELTA)*ARRAY_DELTA; 85 new_adp = malloc(sizeof(*new_adp)*newsize, M_DEVBUF, M_WAITOK); 86 new_vidsw = malloc(sizeof(*new_vidsw)*newsize, M_DEVBUF, M_WAITOK); 87 #ifdef FB_INSTALL_CDEV 88 new_cdevsw = malloc(sizeof(*new_cdevsw)*newsize, M_DEVBUF, M_WAITOK); 89 #endif 90 bzero(new_adp, sizeof(*new_adp)*newsize); 91 bzero(new_vidsw, sizeof(*new_vidsw)*newsize); 92 bcopy(adapter, new_adp, sizeof(*adapter)*adapters); 93 bcopy(vidsw, new_vidsw, sizeof(*vidsw)*adapters); 94 #ifdef FB_INSTALL_CDEV 95 bzero(new_cdevsw, sizeof(*new_cdevsw)*newsize); 96 bcopy(vidcdevsw, new_cdevsw, sizeof(*vidcdevsw)*adapters); 97 #endif 98 if (adapters > 1) { 99 free(adapter, M_DEVBUF); 100 free(vidsw, M_DEVBUF); 101 #ifdef FB_INSTALL_CDEV 102 free(vidcdevsw, M_DEVBUF); 103 #endif 104 } 105 adapter = new_adp; 106 vidsw = new_vidsw; 107 #ifdef FB_INSTALL_CDEV 108 vidcdevsw = new_cdevsw; 109 #endif 110 adapters = newsize; 111 splx(s); 112 113 if (bootverbose) 114 printf("fb: new array size %d\n", adapters); 115 116 return 0; 117 } 118 119 static void 120 vid_malloc_init(void *arg) 121 { 122 vid_malloc = TRUE; 123 } 124 125 SYSINIT(vid_mem, SI_SUB_KMEM, SI_ORDER_ANY, vid_malloc_init, NULL); 126 127 /* 128 * Low-level frame buffer driver functions 129 * frame buffer subdrivers, such as the VGA driver, call these functions 130 * to initialize the video_adapter structure and register it to the virtual 131 * frame buffer driver `fb'. 132 */ 133 134 /* initialize the video_adapter_t structure */ 135 void 136 vid_init_struct(video_adapter_t *adp, char *name, int type, int unit) 137 { 138 adp->va_flags = 0; 139 adp->va_name = name; 140 adp->va_type = type; 141 adp->va_unit = unit; 142 } 143 144 /* Register a video adapter */ 145 int 146 vid_register(video_adapter_t *adp) 147 { 148 const video_driver_t **list; 149 const video_driver_t *p; 150 int index; 151 152 for (index = 0; index < adapters; ++index) { 153 if (adapter[index] == NULL) 154 break; 155 } 156 if (index >= adapters) { 157 if (vid_realloc_array()) 158 return -1; 159 } 160 161 adp->va_index = index; 162 adp->va_token = NULL; 163 list = (const video_driver_t **)videodriver_set.ls_items; 164 while ((p = *list++) != NULL) { 165 if (strcmp(p->name, adp->va_name) == 0) { 166 adapter[index] = adp; 167 vidsw[index] = p->vidsw; 168 return index; 169 } 170 } 171 172 return -1; 173 } 174 175 int 176 vid_unregister(video_adapter_t *adp) 177 { 178 if ((adp->va_index < 0) || (adp->va_index >= adapters)) 179 return ENOENT; 180 if (adapter[adp->va_index] != adp) 181 return ENOENT; 182 183 adapter[adp->va_index] = NULL; 184 vidsw[adp->va_index] = NULL; 185 return 0; 186 } 187 188 /* Get video I/O function table */ 189 video_switch_t 190 *vid_get_switch(char *name) 191 { 192 const video_driver_t **list; 193 const video_driver_t *p; 194 195 list = (const video_driver_t **)videodriver_set.ls_items; 196 while ((p = *list++) != NULL) { 197 if (strcmp(p->name, name) == 0) 198 return p->vidsw; 199 } 200 201 return NULL; 202 } 203 204 /* 205 * Video card client functions 206 * Video card clients, such as the console driver `syscons' and the frame 207 * buffer cdev driver, use these functions to claim and release a card for 208 * exclusive use. 209 */ 210 211 /* find the video card specified by a driver name and a unit number */ 212 int 213 vid_find_adapter(char *driver, int unit) 214 { 215 int i; 216 217 for (i = 0; i < adapters; ++i) { 218 if (adapter[i] == NULL) 219 continue; 220 if (strcmp("*", driver) && strcmp(adapter[i]->va_name, driver)) 221 continue; 222 if ((unit != -1) && (adapter[i]->va_unit != unit)) 223 continue; 224 return i; 225 } 226 return -1; 227 } 228 229 /* allocate a video card */ 230 int 231 vid_allocate(char *driver, int unit, void *id) 232 { 233 int index; 234 int s; 235 236 s = spltty(); 237 index = vid_find_adapter(driver, unit); 238 if (index >= 0) { 239 if (adapter[index]->va_token) { 240 splx(s); 241 return -1; 242 } 243 adapter[index]->va_token = id; 244 } 245 splx(s); 246 return index; 247 } 248 249 int 250 vid_release(video_adapter_t *adp, void *id) 251 { 252 int error; 253 int s; 254 255 s = spltty(); 256 if (adp->va_token == NULL) { 257 error = EINVAL; 258 } else if (adp->va_token != id) { 259 error = EPERM; 260 } else { 261 adp->va_token = NULL; 262 error = 0; 263 } 264 splx(s); 265 return error; 266 } 267 268 /* Get a video adapter structure */ 269 video_adapter_t 270 *vid_get_adapter(int index) 271 { 272 if ((index < 0) || (index >= adapters)) 273 return NULL; 274 return adapter[index]; 275 } 276 277 /* Configure drivers: this is a backdoor for the console driver XXX */ 278 int 279 vid_configure(int flags) 280 { 281 const video_driver_t **list; 282 const video_driver_t *p; 283 284 list = (const video_driver_t **)videodriver_set.ls_items; 285 while ((p = *list++) != NULL) { 286 if (p->configure != NULL) 287 (*p->configure)(flags); 288 } 289 290 return 0; 291 } 292 293 /* 294 * Virtual frame buffer cdev driver functions 295 * The virtual frame buffer driver dispatches driver functions to 296 * appropriate subdrivers. 297 */ 298 299 #define FB_DRIVER_NAME "fb" 300 301 #ifdef FB_INSTALL_CDEV 302 303 #if experimental 304 305 static devclass_t fb_devclass; 306 307 static int fbprobe(device_t dev); 308 static int fbattach(device_t dev); 309 310 static device_method_t fb_methods[] = { 311 DEVMETHOD(device_probe, fbprobe), 312 DEVMETHOD(device_attach, fbattach), 313 314 DEVMETHOD(bus_print_child, bus_generic_print_child), 315 { 0, 0 } 316 }; 317 318 static driver_t fb_driver = { 319 FB_DRIVER_NAME, 320 fb_methods, 321 0, 322 }; 323 324 static int 325 fbprobe(device_t dev) 326 { 327 int unit; 328 329 unit = device_get_unit(dev); 330 if (unit >= adapters) 331 return ENXIO; 332 if (adapter[unit] == NULL) 333 return ENXIO; 334 335 device_set_desc(dev, "generic frame buffer"); 336 return 0; 337 } 338 339 static int 340 fbattach(device_t dev) 341 { 342 printf("fbattach: about to attach children\n"); 343 bus_generic_attach(dev); 344 return 0; 345 } 346 347 #endif /* experimental */ 348 349 #define FB_UNIT(dev) minor(dev) 350 #define FB_MKMINOR(unit) (u) 351 352 static d_open_t fbopen; 353 static d_close_t fbclose; 354 static d_read_t fbread; 355 static d_write_t fbwrite; 356 static d_ioctl_t fbioctl; 357 static d_mmap_t fbmmap; 358 359 #define CDEV_MAJOR 123 /* XXX */ 360 361 static struct cdevsw fb_cdevsw = { 362 /* open */ fbopen, 363 /* close */ fbclose, 364 /* read */ fbread, 365 /* write */ fbwrite, 366 /* ioctl */ fbioctl, 367 /* poll */ nopoll, 368 /* mmap */ fbmmap, 369 /* strategy */ nostrategy, 370 /* name */ FB_DRIVER_NAME, 371 /* maj */ CDEV_MAJOR, 372 /* dump */ nodump, 373 /* psize */ nopsize, 374 /* flags */ 0, 375 /* bmaj */ -1 376 }; 377 378 static void 379 vfbattach(void *arg) 380 { 381 static int fb_devsw_installed = FALSE; 382 383 if (!fb_devsw_installed) { 384 cdevsw_add(&fb_cdevsw); 385 fb_devsw_installed = TRUE; 386 } 387 } 388 389 PSEUDO_SET(vfbattach, fb); 390 391 int 392 fb_attach(dev_t dev, video_adapter_t *adp, struct cdevsw *cdevsw) 393 { 394 int s; 395 396 if (adp->va_index >= adapters) 397 return EINVAL; 398 if (adapter[adp->va_index] != adp) 399 return EINVAL; 400 401 s = spltty(); 402 adp->va_minor = minor(dev); 403 vidcdevsw[adp->va_index] = cdevsw; 404 splx(s); 405 406 printf("fb%d at %s%d\n", adp->va_index, adp->va_name, adp->va_unit); 407 return 0; 408 } 409 410 int 411 fb_detach(dev_t dev, video_adapter_t *adp, struct cdevsw *cdevsw) 412 { 413 int s; 414 415 if (adp->va_index >= adapters) 416 return EINVAL; 417 if (adapter[adp->va_index] != adp) 418 return EINVAL; 419 if (vidcdevsw[adp->va_index] != cdevsw) 420 return EINVAL; 421 422 s = spltty(); 423 vidcdevsw[adp->va_index] = NULL; 424 splx(s); 425 return 0; 426 } 427 428 static int 429 fbopen(dev_t dev, int flag, int mode, struct proc *p) 430 { 431 int unit; 432 433 unit = FB_UNIT(dev); 434 if (unit >= adapters) 435 return ENXIO; 436 if (vidcdevsw[unit] == NULL) 437 return ENXIO; 438 return (*vidcdevsw[unit]->d_open)(makedev(0, adapter[unit]->va_minor), 439 flag, mode, p); 440 } 441 442 static int 443 fbclose(dev_t dev, int flag, int mode, struct proc *p) 444 { 445 int unit; 446 447 unit = FB_UNIT(dev); 448 if (vidcdevsw[unit] == NULL) 449 return ENXIO; 450 return (*vidcdevsw[unit]->d_close)(makedev(0, adapter[unit]->va_minor), 451 flag, mode, p); 452 } 453 454 static int 455 fbread(dev_t dev, struct uio *uio, int flag) 456 { 457 int unit; 458 459 unit = FB_UNIT(dev); 460 if (vidcdevsw[unit] == NULL) 461 return ENXIO; 462 return (*vidcdevsw[unit]->d_read)(makedev(0, adapter[unit]->va_minor), 463 uio, flag); 464 } 465 466 static int 467 fbwrite(dev_t dev, struct uio *uio, int flag) 468 { 469 int unit; 470 471 unit = FB_UNIT(dev); 472 if (vidcdevsw[unit] == NULL) 473 return ENXIO; 474 return (*vidcdevsw[unit]->d_write)(makedev(0, adapter[unit]->va_minor), 475 uio, flag); 476 } 477 478 static int 479 fbioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p) 480 { 481 int unit; 482 483 unit = FB_UNIT(dev); 484 if (vidcdevsw[unit] == NULL) 485 return ENXIO; 486 return (*vidcdevsw[unit]->d_ioctl)(makedev(0, adapter[unit]->va_minor), 487 cmd, arg, flag, p); 488 } 489 490 static int 491 fbmmap(dev_t dev, vm_offset_t offset, int nprot) 492 { 493 int unit; 494 495 unit = FB_UNIT(dev); 496 if (vidcdevsw[unit] == NULL) 497 return ENXIO; 498 return (*vidcdevsw[unit]->d_mmap)(makedev(0, adapter[unit]->va_minor), 499 offset, nprot); 500 } 501 502 #if experimental 503 DEV_DRIVER_MODULE(fb, ???, fb_driver, fb_devclass, fb_cdevsw, 0, 0); 504 #endif 505 506 /* 507 * Generic frame buffer cdev driver functions 508 * Frame buffer subdrivers may call these functions to implement common 509 * driver functions. 510 */ 511 512 int genfbopen(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 513 struct proc *p) 514 { 515 int s; 516 517 s = spltty(); 518 if (!(sc->gfb_flags & FB_OPEN)) 519 sc->gfb_flags |= FB_OPEN; 520 splx(s); 521 return 0; 522 } 523 524 int genfbclose(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 525 struct proc *p) 526 { 527 int s; 528 529 s = spltty(); 530 sc->gfb_flags &= ~FB_OPEN; 531 splx(s); 532 return 0; 533 } 534 535 int genfbread(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 536 int flag) 537 { 538 int size; 539 int offset; 540 int error; 541 int len; 542 543 error = 0; 544 size = adp->va_buffer_size/adp->va_info.vi_planes; 545 while (uio->uio_resid > 0) { 546 if (uio->uio_offset >= size) 547 break; 548 offset = uio->uio_offset%adp->va_window_size; 549 len = imin(uio->uio_resid, size - uio->uio_offset); 550 len = imin(len, adp->va_window_size - offset); 551 if (len <= 0) 552 break; 553 (*vidsw[adp->va_index]->set_win_org)(adp, uio->uio_offset); 554 error = uiomove((caddr_t)(adp->va_window + offset), len, uio); 555 if (error) 556 break; 557 } 558 return error; 559 } 560 561 int genfbwrite(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 562 int flag) 563 { 564 return ENODEV; 565 } 566 567 int genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, u_long cmd, 568 caddr_t arg, int flag, struct proc *p) 569 { 570 int error; 571 572 if (adp == NULL) /* XXX */ 573 return ENXIO; 574 error = (*vidsw[adp->va_index]->ioctl)(adp, cmd, arg); 575 if (error == ENOIOCTL) 576 error = ENODEV; 577 return error; 578 } 579 580 int genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, vm_offset_t offset, 581 int prot) 582 { 583 return (*vidsw[adp->va_index]->mmap)(adp, offset, prot); 584 } 585 586 #endif /* FB_INSTALL_CDEV */ 587 588 static char 589 *adapter_name(int type) 590 { 591 static struct { 592 int type; 593 char *name; 594 } names[] = { 595 { KD_MONO, "MDA" }, 596 { KD_HERCULES, "Hercules" }, 597 { KD_CGA, "CGA" }, 598 { KD_EGA, "EGA" }, 599 { KD_VGA, "VGA" }, 600 { KD_PC98, "PC-98x1" }, 601 { KD_TGA, "TGA" }, 602 { -1, "Unknown" }, 603 }; 604 int i; 605 606 for (i = 0; names[i].type != -1; ++i) 607 if (names[i].type == type) 608 break; 609 return names[i].name; 610 } 611 612 /* 613 * Generic low-level frame buffer functions 614 * The low-level functions in the frame buffer subdriver may use these 615 * functions. 616 */ 617 618 void 619 fb_dump_adp_info(char *driver, video_adapter_t *adp, int level) 620 { 621 if (level <= 0) 622 return; 623 624 printf("%s%d: %s%d, %s, type:%s (%d), flags:0x%x\n", 625 FB_DRIVER_NAME, adp->va_index, driver, adp->va_unit, adp->va_name, 626 adapter_name(adp->va_type), adp->va_type, adp->va_flags); 627 printf("%s%d: port:0x%x-0x%x, crtc:0x%x, mem:0x%x 0x%x\n", 628 FB_DRIVER_NAME, adp->va_index, 629 adp->va_io_base, adp->va_io_base + adp->va_io_size - 1, 630 adp->va_crtc_addr, adp->va_mem_base, adp->va_mem_size); 631 printf("%s%d: init mode:%d, bios mode:%d, current mode:%d\n", 632 FB_DRIVER_NAME, adp->va_index, 633 adp->va_initial_mode, adp->va_initial_bios_mode, adp->va_mode); 634 printf("%s%d: window:%p size:%dk gran:%dk, buf:%p size:%dk\n", 635 FB_DRIVER_NAME, adp->va_index, 636 (void *)adp->va_window, (int)adp->va_window_size/1024, 637 (int)adp->va_window_gran/1024, (void *)adp->va_buffer, 638 (int)adp->va_buffer_size/1024); 639 } 640 641 void 642 fb_dump_mode_info(char *driver, video_adapter_t *adp, video_info_t *info, 643 int level) 644 { 645 if (level <= 0) 646 return; 647 648 printf("%s%d: %s, mode:%d, flags:0x%x ", 649 driver, adp->va_unit, adp->va_name, info->vi_mode, info->vi_flags); 650 if (info->vi_flags & V_INFO_GRAPHICS) 651 printf("G %dx%dx%d, %d plane(s), font:%dx%d, ", 652 info->vi_width, info->vi_height, 653 info->vi_depth, info->vi_planes, 654 info->vi_cwidth, info->vi_cheight); 655 else 656 printf("T %dx%d, font:%dx%d, ", 657 info->vi_width, info->vi_height, 658 info->vi_cwidth, info->vi_cheight); 659 printf("win:0x%x\n", info->vi_window); 660 } 661 662 int 663 fb_type(int adp_type) 664 { 665 static struct { 666 int fb_type; 667 int va_type; 668 } types[] = { 669 { FBTYPE_MDA, KD_MONO }, 670 { FBTYPE_HERCULES, KD_HERCULES }, 671 { FBTYPE_CGA, KD_CGA }, 672 { FBTYPE_EGA, KD_EGA }, 673 { FBTYPE_VGA, KD_VGA }, 674 { FBTYPE_PC98, KD_PC98 }, 675 { FBTYPE_TGA, KD_TGA }, 676 }; 677 int i; 678 679 for (i = 0; i < sizeof(types)/sizeof(types[0]); ++i) { 680 if (types[i].va_type == adp_type) 681 return types[i].fb_type; 682 } 683 return -1; 684 } 685 686 int 687 fb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 688 { 689 int error; 690 int s; 691 692 /* assert(adp != NULL) */ 693 694 error = 0; 695 s = spltty(); 696 697 switch (cmd) { 698 699 case FBIO_ADAPTER: /* get video adapter index */ 700 *(int *)arg = adp->va_index; 701 break; 702 703 case FBIO_ADPTYPE: /* get video adapter type */ 704 *(int *)arg = adp->va_type; 705 break; 706 707 case FBIO_ADPINFO: /* get video adapter info */ 708 ((video_adapter_info_t *)arg)->va_index = adp->va_index; 709 ((video_adapter_info_t *)arg)->va_type = adp->va_type; 710 bcopy(adp->va_name, ((video_adapter_info_t *)arg)->va_name, 711 imin(strlen(adp->va_name) + 1, 712 sizeof(((video_adapter_info_t *)arg)->va_name))); 713 ((video_adapter_info_t *)arg)->va_unit = adp->va_unit; 714 ((video_adapter_info_t *)arg)->va_flags = adp->va_flags; 715 ((video_adapter_info_t *)arg)->va_io_base = adp->va_io_base; 716 ((video_adapter_info_t *)arg)->va_io_size = adp->va_io_size; 717 ((video_adapter_info_t *)arg)->va_crtc_addr = adp->va_crtc_addr; 718 ((video_adapter_info_t *)arg)->va_mem_base = adp->va_mem_base; 719 ((video_adapter_info_t *)arg)->va_mem_size = adp->va_mem_size; 720 ((video_adapter_info_t *)arg)->va_window 721 #ifdef __i386__ 722 = vtophys(adp->va_window); 723 #else 724 = adp->va_window; 725 #endif 726 ((video_adapter_info_t *)arg)->va_window_size 727 = adp->va_window_size; 728 ((video_adapter_info_t *)arg)->va_window_gran 729 = adp->va_window_gran; 730 ((video_adapter_info_t *)arg)->va_window_orig 731 = adp->va_window_orig; 732 ((video_adapter_info_t *)arg)->va_unused0 733 #ifdef __i386__ 734 = (adp->va_buffer) ? vtophys(adp->va_buffer) : 0; 735 #else 736 = adp->va_buffer; 737 #endif 738 ((video_adapter_info_t *)arg)->va_buffer_size 739 = adp->va_buffer_size; 740 ((video_adapter_info_t *)arg)->va_mode = adp->va_mode; 741 ((video_adapter_info_t *)arg)->va_initial_mode 742 = adp->va_initial_mode; 743 ((video_adapter_info_t *)arg)->va_initial_bios_mode 744 = adp->va_initial_bios_mode; 745 ((video_adapter_info_t *)arg)->va_line_width 746 = adp->va_line_width; 747 ((video_adapter_info_t *)arg)->va_disp_start.x 748 = adp->va_disp_start.x; 749 ((video_adapter_info_t *)arg)->va_disp_start.y 750 = adp->va_disp_start.y; 751 break; 752 753 case FBIO_MODEINFO: /* get mode information */ 754 error = (*vidsw[adp->va_index]->get_info)(adp, 755 ((video_info_t *)arg)->vi_mode, 756 (video_info_t *)arg); 757 if (error) 758 error = ENODEV; 759 break; 760 761 case FBIO_FINDMODE: /* find a matching video mode */ 762 error = (*vidsw[adp->va_index]->query_mode)(adp, 763 (video_info_t *)arg); 764 break; 765 766 case FBIO_GETMODE: /* get video mode */ 767 *(int *)arg = adp->va_mode; 768 break; 769 770 case FBIO_SETMODE: /* set video mode */ 771 error = (*vidsw[adp->va_index]->set_mode)(adp, *(int *)arg); 772 if (error) 773 error = ENODEV; /* EINVAL? */ 774 break; 775 776 case FBIO_GETWINORG: /* get frame buffer window origin */ 777 *(u_int *)arg = adp->va_window_orig; 778 break; 779 780 case FBIO_GETDISPSTART: /* get display start address */ 781 ((video_display_start_t *)arg)->x = adp->va_disp_start.x; 782 ((video_display_start_t *)arg)->y = adp->va_disp_start.y; 783 break; 784 785 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 786 *(u_int *)arg = adp->va_line_width; 787 break; 788 789 case FBIO_GETPALETTE: /* get color palette */ 790 case FBIO_SETPALETTE: /* set color palette */ 791 /* XXX */ 792 793 case FBIOPUTCMAP: 794 case FBIOGETCMAP: 795 /* XXX */ 796 797 case FBIO_SETWINORG: /* set frame buffer window origin */ 798 case FBIO_SETDISPSTART: /* set display start address */ 799 case FBIO_SETLINEWIDTH: /* set scan line width in pixel */ 800 801 case FBIOGTYPE: 802 case FBIOGATTR: 803 case FBIOSVIDEO: 804 case FBIOGVIDEO: 805 case FBIOSCURSOR: 806 case FBIOGCURSOR: 807 case FBIOSCURPOS: 808 case FBIOGCURPOS: 809 case FBIOGCURMAX: 810 811 default: 812 error = ENODEV; 813 break; 814 } 815 816 splx(s); 817 return error; 818 } 819