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 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include "opt_fb.h" 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/conf.h> 37 #include <sys/bus.h> 38 #include <sys/kernel.h> 39 #include <sys/malloc.h> 40 #include <sys/module.h> 41 #include <sys/uio.h> 42 #include <sys/fbio.h> 43 #include <sys/linker_set.h> 44 45 #include <vm/vm.h> 46 #include <vm/pmap.h> 47 48 #include <dev/fb/fbreg.h> 49 50 SET_DECLARE(videodriver_set, const video_driver_t); 51 52 /* local arrays */ 53 54 /* 55 * We need at least one entry each in order to initialize a video card 56 * for the kernel console. The arrays will be increased dynamically 57 * when necessary. 58 */ 59 60 static int vid_malloc; 61 static int adapters = 1; 62 static video_adapter_t *adp_ini; 63 static video_adapter_t **adapter = &adp_ini; 64 static video_switch_t *vidsw_ini; 65 video_switch_t **vidsw = &vidsw_ini; 66 67 #ifdef FB_INSTALL_CDEV 68 static struct cdevsw *vidcdevsw_ini; 69 static struct cdevsw **vidcdevsw = &vidcdevsw_ini; 70 #endif 71 72 #define ARRAY_DELTA 4 73 74 static int 75 vid_realloc_array(void) 76 { 77 video_adapter_t **new_adp; 78 video_switch_t **new_vidsw; 79 #ifdef FB_INSTALL_CDEV 80 struct cdevsw **new_cdevsw; 81 #endif 82 int newsize; 83 int s; 84 85 if (!vid_malloc) 86 return ENOMEM; 87 88 s = spltty(); 89 newsize = ((adapters + ARRAY_DELTA)/ARRAY_DELTA)*ARRAY_DELTA; 90 new_adp = malloc(sizeof(*new_adp)*newsize, M_DEVBUF, M_WAITOK | M_ZERO); 91 new_vidsw = malloc(sizeof(*new_vidsw)*newsize, M_DEVBUF, 92 M_WAITOK | M_ZERO); 93 #ifdef FB_INSTALL_CDEV 94 new_cdevsw = malloc(sizeof(*new_cdevsw)*newsize, M_DEVBUF, 95 M_WAITOK | M_ZERO); 96 #endif 97 bcopy(adapter, new_adp, sizeof(*adapter)*adapters); 98 bcopy(vidsw, new_vidsw, sizeof(*vidsw)*adapters); 99 #ifdef FB_INSTALL_CDEV 100 bcopy(vidcdevsw, new_cdevsw, sizeof(*vidcdevsw)*adapters); 101 #endif 102 if (adapters > 1) { 103 free(adapter, M_DEVBUF); 104 free(vidsw, M_DEVBUF); 105 #ifdef FB_INSTALL_CDEV 106 free(vidcdevsw, M_DEVBUF); 107 #endif 108 } 109 adapter = new_adp; 110 vidsw = new_vidsw; 111 #ifdef FB_INSTALL_CDEV 112 vidcdevsw = new_cdevsw; 113 #endif 114 adapters = newsize; 115 splx(s); 116 117 if (bootverbose) 118 printf("fb: new array size %d\n", adapters); 119 120 return 0; 121 } 122 123 static void 124 vid_malloc_init(void *arg) 125 { 126 vid_malloc = TRUE; 127 } 128 129 SYSINIT(vid_mem, SI_SUB_KMEM, SI_ORDER_ANY, vid_malloc_init, NULL); 130 131 /* 132 * Low-level frame buffer driver functions 133 * frame buffer subdrivers, such as the VGA driver, call these functions 134 * to initialize the video_adapter structure and register it to the virtual 135 * frame buffer driver `fb'. 136 */ 137 138 /* initialize the video_adapter_t structure */ 139 void 140 vid_init_struct(video_adapter_t *adp, char *name, int type, int unit) 141 { 142 adp->va_flags = 0; 143 adp->va_name = name; 144 adp->va_type = type; 145 adp->va_unit = unit; 146 } 147 148 /* Register a video adapter */ 149 int 150 vid_register(video_adapter_t *adp) 151 { 152 const video_driver_t **list; 153 const video_driver_t *p; 154 int index; 155 156 for (index = 0; index < adapters; ++index) { 157 if (adapter[index] == NULL) 158 break; 159 } 160 if (index >= adapters) { 161 if (vid_realloc_array()) 162 return -1; 163 } 164 165 adp->va_index = index; 166 adp->va_token = NULL; 167 SET_FOREACH(list, videodriver_set) { 168 p = *list; 169 if (strcmp(p->name, adp->va_name) == 0) { 170 adapter[index] = adp; 171 vidsw[index] = p->vidsw; 172 return index; 173 } 174 } 175 176 return -1; 177 } 178 179 int 180 vid_unregister(video_adapter_t *adp) 181 { 182 if ((adp->va_index < 0) || (adp->va_index >= adapters)) 183 return ENOENT; 184 if (adapter[adp->va_index] != adp) 185 return ENOENT; 186 187 adapter[adp->va_index] = NULL; 188 vidsw[adp->va_index] = NULL; 189 return 0; 190 } 191 192 /* Get video I/O function table */ 193 video_switch_t 194 *vid_get_switch(char *name) 195 { 196 const video_driver_t **list; 197 const video_driver_t *p; 198 199 SET_FOREACH(list, videodriver_set) { 200 p = *list; 201 if (strcmp(p->name, name) == 0) 202 return p->vidsw; 203 } 204 205 return NULL; 206 } 207 208 /* 209 * Video card client functions 210 * Video card clients, such as the console driver `syscons' and the frame 211 * buffer cdev driver, use these functions to claim and release a card for 212 * exclusive use. 213 */ 214 215 /* find the video card specified by a driver name and a unit number */ 216 int 217 vid_find_adapter(char *driver, int unit) 218 { 219 int i; 220 221 for (i = 0; i < adapters; ++i) { 222 if (adapter[i] == NULL) 223 continue; 224 if (strcmp("*", driver) && strcmp(adapter[i]->va_name, driver)) 225 continue; 226 if ((unit != -1) && (adapter[i]->va_unit != unit)) 227 continue; 228 return i; 229 } 230 return -1; 231 } 232 233 /* allocate a video card */ 234 int 235 vid_allocate(char *driver, int unit, void *id) 236 { 237 int index; 238 int s; 239 240 s = spltty(); 241 index = vid_find_adapter(driver, unit); 242 if (index >= 0) { 243 if (adapter[index]->va_token) { 244 splx(s); 245 return -1; 246 } 247 adapter[index]->va_token = id; 248 } 249 splx(s); 250 return index; 251 } 252 253 int 254 vid_release(video_adapter_t *adp, void *id) 255 { 256 int error; 257 int s; 258 259 s = spltty(); 260 if (adp->va_token == NULL) { 261 error = EINVAL; 262 } else if (adp->va_token != id) { 263 error = EPERM; 264 } else { 265 adp->va_token = NULL; 266 error = 0; 267 } 268 splx(s); 269 return error; 270 } 271 272 /* Get a video adapter structure */ 273 video_adapter_t 274 *vid_get_adapter(int index) 275 { 276 if ((index < 0) || (index >= adapters)) 277 return NULL; 278 return adapter[index]; 279 } 280 281 /* Configure drivers: this is a backdoor for the console driver XXX */ 282 int 283 vid_configure(int flags) 284 { 285 const video_driver_t **list; 286 const video_driver_t *p; 287 288 SET_FOREACH(list, videodriver_set) { 289 p = *list; 290 if (p->configure != NULL) 291 (*p->configure)(flags); 292 } 293 294 return 0; 295 } 296 297 /* 298 * Virtual frame buffer cdev driver functions 299 * The virtual frame buffer driver dispatches driver functions to 300 * appropriate subdrivers. 301 */ 302 303 #define FB_DRIVER_NAME "fb" 304 305 #ifdef FB_INSTALL_CDEV 306 307 #if 0 /* experimental */ 308 309 static devclass_t fb_devclass; 310 311 static int fbprobe(device_t dev); 312 static int fbattach(device_t dev); 313 314 static device_method_t fb_methods[] = { 315 DEVMETHOD(device_probe, fbprobe), 316 DEVMETHOD(device_attach, fbattach), 317 318 DEVMETHOD(bus_print_child, bus_generic_print_child), 319 { 0, 0 } 320 }; 321 322 static driver_t fb_driver = { 323 FB_DRIVER_NAME, 324 fb_methods, 325 0, 326 }; 327 328 static int 329 fbprobe(device_t dev) 330 { 331 int unit; 332 333 unit = device_get_unit(dev); 334 if (unit >= adapters) 335 return ENXIO; 336 if (adapter[unit] == NULL) 337 return ENXIO; 338 339 device_set_desc(dev, "generic frame buffer"); 340 return 0; 341 } 342 343 static int 344 fbattach(device_t dev) 345 { 346 printf("fbattach: about to attach children\n"); 347 bus_generic_attach(dev); 348 return 0; 349 } 350 351 #endif 352 353 #define FB_UNIT(dev) dev2unit(dev) 354 #define FB_MKMINOR(unit) (u) 355 356 #if 0 /* experimental */ 357 static d_open_t fbopen; 358 static d_close_t fbclose; 359 static d_read_t fbread; 360 static d_write_t fbwrite; 361 static d_ioctl_t fbioctl; 362 static d_mmap_t fbmmap; 363 364 365 static struct cdevsw fb_cdevsw = { 366 .d_version = D_VERSION, 367 .d_flags = D_NEEDGIANT, 368 .d_open = fbopen, 369 .d_close = fbclose, 370 .d_read = fbread, 371 .d_write = fbwrite, 372 .d_ioctl = fbioctl, 373 .d_mmap = fbmmap, 374 .d_name = FB_DRIVER_NAME, 375 }; 376 #endif 377 378 379 static int 380 fb_modevent(module_t mod, int type, void *data) 381 { 382 383 switch (type) { 384 case MOD_LOAD: 385 break; 386 case MOD_UNLOAD: 387 printf("fb module unload - not possible for this module type\n"); 388 return EINVAL; 389 default: 390 return EOPNOTSUPP; 391 } 392 return 0; 393 } 394 395 static moduledata_t fb_mod = { 396 "fb", 397 fb_modevent, 398 NULL 399 }; 400 401 DECLARE_MODULE(fb, fb_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); 402 403 int 404 fb_attach(int unit, video_adapter_t *adp, struct cdevsw *cdevsw) 405 { 406 int s; 407 408 if (adp->va_index >= adapters) 409 return EINVAL; 410 if (adapter[adp->va_index] != adp) 411 return EINVAL; 412 413 s = spltty(); 414 adp->va_minor = unit; 415 vidcdevsw[adp->va_index] = cdevsw; 416 splx(s); 417 418 printf("fb%d at %s%d\n", adp->va_index, adp->va_name, adp->va_unit); 419 return 0; 420 } 421 422 int 423 fb_detach(int unit, video_adapter_t *adp, struct cdevsw *cdevsw) 424 { 425 int s; 426 427 if (adp->va_index >= adapters) 428 return EINVAL; 429 if (adapter[adp->va_index] != adp) 430 return EINVAL; 431 if (vidcdevsw[adp->va_index] != cdevsw) 432 return EINVAL; 433 434 s = spltty(); 435 vidcdevsw[adp->va_index] = NULL; 436 splx(s); 437 return 0; 438 } 439 440 /* 441 * Generic frame buffer cdev driver functions 442 * Frame buffer subdrivers may call these functions to implement common 443 * driver functions. 444 */ 445 446 int genfbopen(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 447 struct thread *td) 448 { 449 int s; 450 451 s = spltty(); 452 if (!(sc->gfb_flags & FB_OPEN)) 453 sc->gfb_flags |= FB_OPEN; 454 splx(s); 455 return 0; 456 } 457 458 int genfbclose(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 459 struct thread *td) 460 { 461 int s; 462 463 s = spltty(); 464 sc->gfb_flags &= ~FB_OPEN; 465 splx(s); 466 return 0; 467 } 468 469 int genfbread(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 470 int flag) 471 { 472 int size; 473 int offset; 474 int error; 475 int len; 476 477 error = 0; 478 size = adp->va_buffer_size/adp->va_info.vi_planes; 479 while (uio->uio_resid > 0) { 480 if (uio->uio_offset >= size) 481 break; 482 offset = uio->uio_offset%adp->va_window_size; 483 len = imin(uio->uio_resid, size - uio->uio_offset); 484 len = imin(len, adp->va_window_size - offset); 485 if (len <= 0) 486 break; 487 vidd_set_win_org(adp, uio->uio_offset); 488 error = uiomove((caddr_t)(adp->va_window + offset), len, uio); 489 if (error) 490 break; 491 } 492 return error; 493 } 494 495 int genfbwrite(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 496 int flag) 497 { 498 return ENODEV; 499 } 500 501 int genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, u_long cmd, 502 caddr_t arg, int flag, struct thread *td) 503 { 504 int error; 505 506 if (adp == NULL) /* XXX */ 507 return ENXIO; 508 error = vidd_ioctl(adp, cmd, arg); 509 if (error == ENOIOCTL) 510 error = ENODEV; 511 return error; 512 } 513 514 int genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, vm_ooffset_t offset, 515 vm_offset_t *paddr, int prot, vm_memattr_t *memattr) 516 { 517 return vidd_mmap(adp, offset, paddr, prot, memattr); 518 } 519 520 #endif /* FB_INSTALL_CDEV */ 521 522 static char 523 *adapter_name(int type) 524 { 525 static struct { 526 int type; 527 char *name; 528 } names[] = { 529 { KD_MONO, "MDA" }, 530 { KD_HERCULES, "Hercules" }, 531 { KD_CGA, "CGA" }, 532 { KD_EGA, "EGA" }, 533 { KD_VGA, "VGA" }, 534 { KD_PC98, "PC-98x1" }, 535 { KD_TGA, "TGA" }, 536 { -1, "Unknown" }, 537 }; 538 int i; 539 540 for (i = 0; names[i].type != -1; ++i) 541 if (names[i].type == type) 542 break; 543 return names[i].name; 544 } 545 546 /* 547 * Generic low-level frame buffer functions 548 * The low-level functions in the frame buffer subdriver may use these 549 * functions. 550 */ 551 552 void 553 fb_dump_adp_info(char *driver, video_adapter_t *adp, int level) 554 { 555 if (level <= 0) 556 return; 557 558 printf("%s%d: %s%d, %s, type:%s (%d), flags:0x%x\n", 559 FB_DRIVER_NAME, adp->va_index, driver, adp->va_unit, adp->va_name, 560 adapter_name(adp->va_type), adp->va_type, adp->va_flags); 561 printf("%s%d: port:0x%lx-0x%lx, crtc:0x%lx, mem:0x%lx 0x%x\n", 562 FB_DRIVER_NAME, adp->va_index, (u_long)adp->va_io_base, 563 (u_long)adp->va_io_base + adp->va_io_size - 1, 564 (u_long)adp->va_crtc_addr, (u_long)adp->va_mem_base, 565 adp->va_mem_size); 566 printf("%s%d: init mode:%d, bios mode:%d, current mode:%d\n", 567 FB_DRIVER_NAME, adp->va_index, 568 adp->va_initial_mode, adp->va_initial_bios_mode, adp->va_mode); 569 printf("%s%d: window:%p size:%dk gran:%dk, buf:%p size:%dk\n", 570 FB_DRIVER_NAME, adp->va_index, 571 (void *)adp->va_window, (int)adp->va_window_size/1024, 572 (int)adp->va_window_gran/1024, (void *)adp->va_buffer, 573 (int)adp->va_buffer_size/1024); 574 } 575 576 void 577 fb_dump_mode_info(char *driver, video_adapter_t *adp, video_info_t *info, 578 int level) 579 { 580 if (level <= 0) 581 return; 582 583 printf("%s%d: %s, mode:%d, flags:0x%x ", 584 driver, adp->va_unit, adp->va_name, info->vi_mode, info->vi_flags); 585 if (info->vi_flags & V_INFO_GRAPHICS) 586 printf("G %dx%dx%d, %d plane(s), font:%dx%d, ", 587 info->vi_width, info->vi_height, 588 info->vi_depth, info->vi_planes, 589 info->vi_cwidth, info->vi_cheight); 590 else 591 printf("T %dx%d, font:%dx%d, ", 592 info->vi_width, info->vi_height, 593 info->vi_cwidth, info->vi_cheight); 594 printf("win:0x%lx\n", (u_long)info->vi_window); 595 } 596 597 int 598 fb_type(int adp_type) 599 { 600 static struct { 601 int fb_type; 602 int va_type; 603 } types[] = { 604 { FBTYPE_MDA, KD_MONO }, 605 { FBTYPE_HERCULES, KD_HERCULES }, 606 { FBTYPE_CGA, KD_CGA }, 607 { FBTYPE_EGA, KD_EGA }, 608 { FBTYPE_VGA, KD_VGA }, 609 { FBTYPE_PC98, KD_PC98 }, 610 { FBTYPE_TGA, KD_TGA }, 611 }; 612 int i; 613 614 for (i = 0; i < sizeof(types)/sizeof(types[0]); ++i) { 615 if (types[i].va_type == adp_type) 616 return types[i].fb_type; 617 } 618 return -1; 619 } 620 621 int 622 fb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 623 { 624 int error; 625 int s; 626 627 /* assert(adp != NULL) */ 628 629 error = 0; 630 s = spltty(); 631 632 switch (cmd) { 633 634 case FBIO_ADAPTER: /* get video adapter index */ 635 *(int *)arg = adp->va_index; 636 break; 637 638 case FBIO_ADPTYPE: /* get video adapter type */ 639 *(int *)arg = adp->va_type; 640 break; 641 642 case FBIO_ADPINFO: /* get video adapter info */ 643 ((video_adapter_info_t *)arg)->va_index = adp->va_index; 644 ((video_adapter_info_t *)arg)->va_type = adp->va_type; 645 bcopy(adp->va_name, ((video_adapter_info_t *)arg)->va_name, 646 imin(strlen(adp->va_name) + 1, 647 sizeof(((video_adapter_info_t *)arg)->va_name))); 648 ((video_adapter_info_t *)arg)->va_unit = adp->va_unit; 649 ((video_adapter_info_t *)arg)->va_flags = adp->va_flags; 650 ((video_adapter_info_t *)arg)->va_io_base = adp->va_io_base; 651 ((video_adapter_info_t *)arg)->va_io_size = adp->va_io_size; 652 ((video_adapter_info_t *)arg)->va_crtc_addr = adp->va_crtc_addr; 653 ((video_adapter_info_t *)arg)->va_mem_base = adp->va_mem_base; 654 ((video_adapter_info_t *)arg)->va_mem_size = adp->va_mem_size; 655 ((video_adapter_info_t *)arg)->va_window 656 #if defined(__amd64__) || defined(__i386__) 657 = vtophys(adp->va_window); 658 #else 659 = adp->va_window; 660 #endif 661 ((video_adapter_info_t *)arg)->va_window_size 662 = adp->va_window_size; 663 ((video_adapter_info_t *)arg)->va_window_gran 664 = adp->va_window_gran; 665 ((video_adapter_info_t *)arg)->va_window_orig 666 = adp->va_window_orig; 667 ((video_adapter_info_t *)arg)->va_unused0 668 #if defined(__amd64__) || defined(__i386__) 669 = adp->va_buffer != 0 ? vtophys(adp->va_buffer) : 0; 670 #else 671 = adp->va_buffer; 672 #endif 673 ((video_adapter_info_t *)arg)->va_buffer_size 674 = adp->va_buffer_size; 675 ((video_adapter_info_t *)arg)->va_mode = adp->va_mode; 676 ((video_adapter_info_t *)arg)->va_initial_mode 677 = adp->va_initial_mode; 678 ((video_adapter_info_t *)arg)->va_initial_bios_mode 679 = adp->va_initial_bios_mode; 680 ((video_adapter_info_t *)arg)->va_line_width 681 = adp->va_line_width; 682 ((video_adapter_info_t *)arg)->va_disp_start.x 683 = adp->va_disp_start.x; 684 ((video_adapter_info_t *)arg)->va_disp_start.y 685 = adp->va_disp_start.y; 686 break; 687 688 case FBIO_MODEINFO: /* get mode information */ 689 error = vidd_get_info(adp, 690 ((video_info_t *)arg)->vi_mode, 691 (video_info_t *)arg); 692 if (error) 693 error = ENODEV; 694 break; 695 696 case FBIO_FINDMODE: /* find a matching video mode */ 697 error = vidd_query_mode(adp, (video_info_t *)arg); 698 break; 699 700 case FBIO_GETMODE: /* get video mode */ 701 *(int *)arg = adp->va_mode; 702 break; 703 704 case FBIO_SETMODE: /* set video mode */ 705 error = vidd_set_mode(adp, *(int *)arg); 706 if (error) 707 error = ENODEV; /* EINVAL? */ 708 break; 709 710 case FBIO_GETWINORG: /* get frame buffer window origin */ 711 *(u_int *)arg = adp->va_window_orig; 712 break; 713 714 case FBIO_GETDISPSTART: /* get display start address */ 715 ((video_display_start_t *)arg)->x = adp->va_disp_start.x; 716 ((video_display_start_t *)arg)->y = adp->va_disp_start.y; 717 break; 718 719 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 720 *(u_int *)arg = adp->va_line_width; 721 break; 722 723 case FBIO_BLANK: /* blank display */ 724 error = vidd_blank_display(adp, *(int *)arg); 725 break; 726 727 case FBIO_GETPALETTE: /* get color palette */ 728 case FBIO_SETPALETTE: /* set color palette */ 729 /* XXX */ 730 731 case FBIOPUTCMAP: 732 case FBIOGETCMAP: 733 case FBIOPUTCMAPI: 734 case FBIOGETCMAPI: 735 /* XXX */ 736 737 case FBIO_SETWINORG: /* set frame buffer window origin */ 738 case FBIO_SETDISPSTART: /* set display start address */ 739 case FBIO_SETLINEWIDTH: /* set scan line width in pixel */ 740 741 case FBIOGTYPE: 742 case FBIOGATTR: 743 case FBIOSVIDEO: 744 case FBIOGVIDEO: 745 case FBIOVERTICAL: 746 case FBIOSCURSOR: 747 case FBIOGCURSOR: 748 case FBIOSCURPOS: 749 case FBIOGCURPOS: 750 case FBIOGCURMAX: 751 case FBIOMONINFO: 752 case FBIOGXINFO: 753 754 default: 755 error = ENODEV; 756 break; 757 } 758 759 splx(s); 760 return error; 761 } 762