1 /*- 2 * (MPSAFE) 3 * 4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer as 12 * the first lines of this file unmodified. 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 AUTHORS ``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 AUTHORS 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 * $FreeBSD: src/sys/dev/fb/fb.c,v 1.11.2.2 2000/08/02 22:35:22 peter Exp $ 31 */ 32 33 #include "opt_fb.h" 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/conf.h> 38 #include <sys/bus.h> 39 #include <sys/kernel.h> 40 #include <sys/malloc.h> 41 #include <sys/uio.h> 42 #include <sys/fbio.h> 43 #include <sys/linker_set.h> 44 #include <sys/device.h> 45 #include <sys/thread2.h> 46 47 #include <vm/vm.h> 48 #include <vm/pmap.h> 49 50 #include "fbreg.h" 51 52 SET_DECLARE(videodriver_set, const video_driver_t); 53 54 /* local arrays */ 55 56 /* 57 * We need at least one entry each in order to initialize a video card 58 * for the kernel console. The arrays will be increased dynamically 59 * when necessary. 60 */ 61 62 static int vid_malloc; 63 static int adapters = 1; 64 static video_adapter_t *adp_ini; 65 static video_adapter_t **adapter = &adp_ini; 66 static video_switch_t *vidsw_ini; 67 video_switch_t **vidsw = &vidsw_ini; 68 69 #ifdef FB_INSTALL_CDEV 70 static cdev_t vidcdevsw_ini; 71 static cdev_t *vidcdevsw = &vidcdevsw_ini; 72 #endif 73 74 #define ARRAY_DELTA 4 75 76 static int 77 vid_realloc_array(void) 78 { 79 video_adapter_t **new_adp; 80 video_switch_t **new_vidsw; 81 #ifdef FB_INSTALL_CDEV 82 cdev_t *new_cdevsw; 83 #endif 84 int newsize; 85 86 if (!vid_malloc) 87 return ENOMEM; 88 89 crit_enter(); 90 newsize = rounddown(adapters + ARRAY_DELTA, ARRAY_DELTA); 91 new_adp = kmalloc(sizeof(*new_adp)*newsize, M_DEVBUF, M_WAITOK | M_ZERO); 92 new_vidsw = kmalloc(sizeof(*new_vidsw)*newsize, M_DEVBUF, 93 M_WAITOK | M_ZERO); 94 #ifdef FB_INSTALL_CDEV 95 new_cdevsw = kmalloc(sizeof(*new_cdevsw)*newsize, M_DEVBUF, 96 M_WAITOK | M_ZERO); 97 #endif 98 bcopy(adapter, new_adp, sizeof(*adapter)*adapters); 99 bcopy(vidsw, new_vidsw, sizeof(*vidsw)*adapters); 100 #ifdef FB_INSTALL_CDEV 101 bcopy(vidcdevsw, new_cdevsw, sizeof(*vidcdevsw)*adapters); 102 #endif 103 if (adapters > 1) { 104 kfree(adapter, M_DEVBUF); 105 kfree(vidsw, M_DEVBUF); 106 #ifdef FB_INSTALL_CDEV 107 kfree(vidcdevsw, M_DEVBUF); 108 #endif 109 } 110 adapter = new_adp; 111 vidsw = new_vidsw; 112 #ifdef FB_INSTALL_CDEV 113 vidcdevsw = new_cdevsw; 114 #endif 115 adapters = newsize; 116 crit_exit(); 117 118 if (bootverbose) 119 kprintf("fb: new array size %d\n", adapters); 120 121 return 0; 122 } 123 124 static void 125 vid_malloc_init(void *arg) 126 { 127 vid_malloc = TRUE; 128 } 129 130 SYSINIT(vid_mem, SI_BOOT1_POST, SI_ORDER_ANY, vid_malloc_init, NULL); 131 132 /* 133 * Low-level frame buffer driver functions 134 * frame buffer subdrivers, such as the VGA driver, call these functions 135 * to initialize the video_adapter structure and register it to the virtual 136 * frame buffer driver `fb'. 137 */ 138 139 /* initialize the video_adapter_t structure */ 140 void 141 vid_init_struct(video_adapter_t *adp, char *name, int type, int unit) 142 { 143 adp->va_flags = 0; 144 adp->va_name = name; 145 adp->va_type = type; 146 adp->va_unit = unit; 147 } 148 149 /* Register a video adapter */ 150 int 151 vid_register(video_adapter_t *adp) 152 { 153 const video_driver_t **list; 154 const video_driver_t *p; 155 int index; 156 157 for (index = 0; index < adapters; ++index) { 158 if (adapter[index] == NULL) 159 break; 160 } 161 if (index >= adapters) { 162 if (vid_realloc_array()) 163 return -1; 164 } 165 166 adp->va_index = index; 167 adp->va_token = NULL; 168 lwkt_gettoken(&vga_token); 169 SET_FOREACH(list, videodriver_set) { 170 p = *list; 171 if (strcmp(p->name, adp->va_name) == 0) { 172 adapter[index] = adp; 173 vidsw[index] = p->vidsw; 174 lwkt_reltoken(&vga_token); 175 return index; 176 } 177 } 178 179 lwkt_reltoken(&vga_token); 180 return -1; 181 } 182 183 int 184 vid_unregister(video_adapter_t *adp) 185 { 186 lwkt_gettoken(&vga_token); 187 if ((adp->va_index < 0) || (adp->va_index >= adapters)) { 188 lwkt_reltoken(&vga_token); 189 return ENOENT; 190 } 191 if (adapter[adp->va_index] != adp) { 192 lwkt_reltoken(&vga_token); 193 return ENOENT; 194 } 195 196 adapter[adp->va_index] = NULL; 197 vidsw[adp->va_index] = NULL; 198 lwkt_reltoken(&vga_token); 199 return 0; 200 } 201 202 /* Get video I/O function table */ 203 video_switch_t * 204 vid_get_switch(char *name) 205 { 206 const video_driver_t **list; 207 const video_driver_t *p; 208 209 lwkt_gettoken(&vga_token); 210 SET_FOREACH(list, videodriver_set) { 211 p = *list; 212 if (strcmp(p->name, name) == 0) { 213 lwkt_reltoken(&vga_token); 214 return p->vidsw; 215 } 216 } 217 218 lwkt_reltoken(&vga_token); 219 return NULL; 220 } 221 222 /* 223 * Video card client functions 224 * Video card clients, such as the console driver `syscons' and the frame 225 * buffer cdev driver, use these functions to claim and release a card for 226 * exclusive use. 227 */ 228 229 /* find the video card specified by a driver name and a unit number */ 230 int 231 vid_find_adapter(char *driver, int unit) 232 { 233 int i; 234 235 for (i = 0; i < adapters; ++i) { 236 if (adapter[i] == NULL) 237 continue; 238 if (strcmp("*", driver) && strcmp(adapter[i]->va_name, driver)) 239 continue; 240 if ((unit != -1) && (adapter[i]->va_unit != unit)) 241 continue; 242 return i; 243 } 244 return -1; 245 } 246 247 /* allocate a video card */ 248 int 249 vid_allocate(char *driver, int unit, void *id) 250 { 251 int index; 252 253 crit_enter(); 254 index = vid_find_adapter(driver, unit); 255 if (index >= 0) { 256 if (adapter[index]->va_token) { 257 crit_exit(); 258 return -1; 259 } 260 adapter[index]->va_token = id; 261 } 262 crit_exit(); 263 return index; 264 } 265 266 int 267 vid_release(video_adapter_t *adp, void *id) 268 { 269 int error; 270 271 crit_enter(); 272 if (adp->va_token == NULL) { 273 error = EINVAL; 274 } else if (adp->va_token != id) { 275 error = EPERM; 276 } else { 277 adp->va_token = NULL; 278 error = 0; 279 } 280 crit_exit(); 281 return error; 282 } 283 284 /* Get a video adapter structure */ 285 video_adapter_t * 286 vid_get_adapter(int index) 287 { 288 if ((index < 0) || (index >= adapters)) 289 return NULL; 290 return adapter[index]; 291 } 292 293 /* Configure drivers: this is a backdoor for the console driver XXX */ 294 int 295 vid_configure(int flags) 296 { 297 const video_driver_t **list; 298 const video_driver_t *p; 299 300 SET_FOREACH(list, videodriver_set) { 301 p = *list; 302 if (p->configure != NULL) 303 (*p->configure)(flags); 304 } 305 306 return 0; 307 } 308 309 /* 310 * Virtual frame buffer cdev driver functions 311 * The virtual frame buffer driver dispatches driver functions to 312 * appropriate subdrivers. 313 */ 314 315 #define FB_DRIVER_NAME "fb" 316 317 #ifdef FB_INSTALL_CDEV 318 319 #if 0 /* experimental */ 320 321 static devclass_t fb_devclass; 322 323 static int fbprobe(device_t dev); 324 static int fbattach(device_t dev); 325 326 static device_method_t fb_methods[] = { 327 DEVMETHOD(device_probe, fbprobe), 328 DEVMETHOD(device_attach, fbattach), 329 330 DEVMETHOD(bus_print_child, bus_generic_print_child), 331 DEVMETHOD_END 332 }; 333 334 static driver_t fb_driver = { 335 FB_DRIVER_NAME, 336 fb_methods, 337 0, 338 }; 339 340 static int 341 fbprobe(device_t dev) 342 { 343 int unit; 344 345 unit = device_get_unit(dev); 346 if (unit >= adapters) 347 return ENXIO; 348 if (adapter[unit] == NULL) 349 return ENXIO; 350 351 device_set_desc(dev, "generic frame buffer"); 352 return 0; 353 } 354 355 static int 356 fbattach(device_t dev) 357 { 358 kprintf("fbattach: about to attach children\n"); 359 bus_generic_attach(dev); 360 return 0; 361 } 362 363 #endif /* experimental */ 364 365 #define FB_UNIT(dev) minor(dev) 366 #define FB_MKMINOR(unit) (u) 367 368 #if 0 369 static d_default_t fboperate; 370 static d_open_t fbopen; 371 372 static struct dev_ops fb_ops = { 373 { FB_DRIVER_NAME, 0, 0 }, 374 .d_default = fboperate, 375 .d_open = fbopen 376 }; 377 #endif 378 379 static void 380 vfbattach(void *arg) 381 { 382 static int fb_devsw_installed = FALSE; 383 384 if (!fb_devsw_installed) { 385 #if 0 386 dev_ops_add(&fb_ops, 0, 0); 387 #endif 388 fb_devsw_installed = TRUE; 389 } 390 } 391 392 PSEUDO_SET(vfbattach, fb); 393 394 /* 395 * Note: dev represents the actual video device, not the frame buffer 396 */ 397 int 398 fb_attach(cdev_t dev, video_adapter_t *adp) 399 { 400 if (adp->va_index >= adapters) 401 return EINVAL; 402 if (adapter[adp->va_index] != adp) 403 return EINVAL; 404 405 crit_enter(); 406 reference_dev(dev); 407 adp->va_minor = minor(dev); 408 vidcdevsw[adp->va_index] = dev; 409 crit_exit(); 410 411 kprintf("fb%d at %s%d\n", adp->va_index, adp->va_name, adp->va_unit); 412 return 0; 413 } 414 415 /* 416 * Note: dev represents the actual video device, not the frame buffer 417 */ 418 int 419 fb_detach(cdev_t dev, video_adapter_t *adp) 420 { 421 if (adp->va_index >= adapters) 422 return EINVAL; 423 if (adapter[adp->va_index] != adp) 424 return EINVAL; 425 if (vidcdevsw[adp->va_index] != dev) 426 return EINVAL; 427 428 crit_enter(); 429 vidcdevsw[adp->va_index] = NULL; 430 crit_exit(); 431 release_dev(dev); 432 return 0; 433 } 434 435 #if 0 436 static int 437 fbopen(struct dev_open_args *ap) 438 { 439 cdev_t dev = ap->a_head.a_dev; 440 int unit; 441 cdev_t fdev; 442 443 unit = FB_UNIT(dev); 444 if (unit < 0 || unit >= adapters) 445 return ENXIO; 446 if ((fdev = vidcdevsw[unit]) == NULL) 447 return ENXIO; 448 return dev_dopen(fdev, ap->a_oflags, ap->a_devtype, ap->a_cred, NULL); 449 } 450 451 static int 452 fboperate(struct dev_generic_args *ap) 453 { 454 cdev_t dev = ap->a_dev; 455 int unit; 456 cdev_t fdev; 457 458 unit = FB_UNIT(dev); 459 if ((fdev = vidcdevsw[unit]) == NULL) 460 return ENXIO; 461 ap->a_dev = fdev; 462 return dev_doperate(ap); 463 } 464 #endif 465 466 /* 467 * Generic frame buffer cdev driver functions 468 * Frame buffer subdrivers may call these functions to implement common 469 * driver functions. 470 */ 471 472 int genfbopen(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 473 struct ucred *cred) 474 { 475 crit_enter(); 476 if (!(sc->gfb_flags & FB_OPEN)) 477 sc->gfb_flags |= FB_OPEN; 478 crit_exit(); 479 return 0; 480 } 481 482 int genfbclose(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode) 483 { 484 crit_enter(); 485 sc->gfb_flags &= ~FB_OPEN; 486 crit_exit(); 487 return 0; 488 } 489 490 int genfbread(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 491 int flag) 492 { 493 int size; 494 int offset; 495 int error; 496 int len; 497 498 lwkt_gettoken(&vga_token); 499 error = 0; 500 size = adp->va_buffer_size/adp->va_info.vi_planes; 501 while (uio->uio_resid > 0) { 502 if (uio->uio_offset >= size) 503 break; 504 offset = uio->uio_offset%adp->va_window_size; 505 len = (int)szmin(uio->uio_resid, size - uio->uio_offset); 506 len = imin(len, adp->va_window_size - offset); 507 if (len <= 0) 508 break; 509 (*vidsw[adp->va_index]->set_win_org)(adp, uio->uio_offset); 510 error = uiomove((caddr_t)(adp->va_window + offset), 511 (size_t)len, uio); 512 if (error) 513 break; 514 } 515 lwkt_reltoken(&vga_token); 516 return error; 517 } 518 519 int genfbwrite(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 520 int flag) 521 { 522 return ENODEV; 523 } 524 525 int genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, u_long cmd, 526 caddr_t arg, int flag, struct ucred *cred) 527 { 528 int error; 529 530 if (adp == NULL) /* XXX */ 531 return ENXIO; 532 lwkt_gettoken(&vga_token); 533 error = (*vidsw[adp->va_index]->ioctl)(adp, cmd, arg); 534 if (error == ENOIOCTL) 535 error = ENODEV; 536 lwkt_reltoken(&vga_token); 537 return error; 538 } 539 540 int genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, vm_offset_t offset, 541 int prot) 542 { 543 int error; 544 545 lwkt_gettoken(&vga_token); 546 error = (*vidsw[adp->va_index]->mmap)(adp, offset, prot); 547 lwkt_reltoken(&vga_token); 548 return (error); 549 } 550 551 #endif /* FB_INSTALL_CDEV */ 552 553 static char * 554 adapter_name(int type) 555 { 556 static struct { 557 int type; 558 char *name; 559 } names[] = { 560 { KD_MONO, "MDA" }, 561 { KD_HERCULES, "Hercules" }, 562 { KD_CGA, "CGA" }, 563 { KD_EGA, "EGA" }, 564 { KD_VGA, "VGA" }, 565 { KD_TGA, "TGA" }, 566 { -1, "Unknown" }, 567 }; 568 int i; 569 570 for (i = 0; names[i].type != -1; ++i) 571 if (names[i].type == type) 572 break; 573 return names[i].name; 574 } 575 576 /* 577 * Generic low-level frame buffer functions 578 * The low-level functions in the frame buffer subdriver may use these 579 * functions. 580 */ 581 582 void 583 fb_dump_adp_info(char *driver, video_adapter_t *adp, int level) 584 { 585 if (level <= 0) 586 return; 587 588 kprintf("%s%d: %s%d, %s, type:%s (%d), flags:0x%x\n", 589 FB_DRIVER_NAME, adp->va_index, driver, adp->va_unit, adp->va_name, 590 adapter_name(adp->va_type), adp->va_type, adp->va_flags); 591 kprintf("%s%d: port:0x%x-0x%x, mem:0x%x 0x%x\n", 592 FB_DRIVER_NAME, adp->va_index, 593 adp->va_io_base, adp->va_io_base + adp->va_io_size - 1, 594 adp->va_mem_base, adp->va_mem_size); 595 kprintf("%s%d: init mode:%d, bios mode:%d, current mode:%d\n", 596 FB_DRIVER_NAME, adp->va_index, 597 adp->va_initial_mode, adp->va_initial_bios_mode, adp->va_mode); 598 kprintf("%s%d: window:%p size:%dk gran:%dk, buf:%p size:%dk\n", 599 FB_DRIVER_NAME, adp->va_index, 600 (void *)adp->va_window, (int)adp->va_window_size/1024, 601 (int)adp->va_window_gran/1024, (void *)adp->va_buffer, 602 (int)adp->va_buffer_size/1024); 603 } 604 605 void 606 fb_dump_mode_info(char *driver, video_adapter_t *adp, video_info_t *info, 607 int level) 608 { 609 if (level <= 0) 610 return; 611 612 kprintf("%s%d: %s, mode:%d, flags:0x%x ", 613 driver, adp->va_unit, adp->va_name, info->vi_mode, info->vi_flags); 614 if (info->vi_flags & V_INFO_GRAPHICS) 615 kprintf("G %dx%dx%d, %d plane(s), font:%dx%d, ", 616 info->vi_width, info->vi_height, 617 info->vi_depth, info->vi_planes, 618 info->vi_cwidth, info->vi_cheight); 619 else 620 kprintf("T %dx%d, font:%dx%d, ", 621 info->vi_width, info->vi_height, 622 info->vi_cwidth, info->vi_cheight); 623 kprintf("win:0x%x\n", info->vi_window); 624 } 625 626 int 627 fb_type(int adp_type) 628 { 629 static struct { 630 int fb_type; 631 int va_type; 632 } types[] = { 633 { FBTYPE_MDA, KD_MONO }, 634 { FBTYPE_HERCULES, KD_HERCULES }, 635 { FBTYPE_CGA, KD_CGA }, 636 { FBTYPE_EGA, KD_EGA }, 637 { FBTYPE_VGA, KD_VGA }, 638 { FBTYPE_TGA, KD_TGA }, 639 }; 640 int i; 641 642 for (i = 0; i < NELEM(types); ++i) { 643 if (types[i].va_type == adp_type) 644 return types[i].fb_type; 645 } 646 return -1; 647 } 648 649 int 650 fb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 651 { 652 int error; 653 654 /* assert(adp != NULL) */ 655 656 error = 0; 657 crit_enter(); 658 659 lwkt_gettoken(&vga_token); 660 switch (cmd) { 661 662 case FBIO_ADAPTER: /* get video adapter index */ 663 *(int *)arg = adp->va_index; 664 break; 665 666 case FBIO_ADPTYPE: /* get video adapter type */ 667 *(int *)arg = adp->va_type; 668 break; 669 670 case FBIO_ADPINFO: /* get video adapter info */ 671 ((video_adapter_info_t *)arg)->va_index = adp->va_index; 672 ((video_adapter_info_t *)arg)->va_type = adp->va_type; 673 bcopy(adp->va_name, ((video_adapter_info_t *)arg)->va_name, 674 imin(strlen(adp->va_name) + 1, 675 sizeof(((video_adapter_info_t *)arg)->va_name))); 676 ((video_adapter_info_t *)arg)->va_unit = adp->va_unit; 677 ((video_adapter_info_t *)arg)->va_flags = adp->va_flags; 678 ((video_adapter_info_t *)arg)->va_io_base = adp->va_io_base; 679 ((video_adapter_info_t *)arg)->va_io_size = adp->va_io_size; 680 ((video_adapter_info_t *)arg)->va_mem_base = adp->va_mem_base; 681 ((video_adapter_info_t *)arg)->va_mem_size = adp->va_mem_size; 682 ((video_adapter_info_t *)arg)->va_window = adp->va_window; 683 ((video_adapter_info_t *)arg)->va_window_size 684 = adp->va_window_size; 685 ((video_adapter_info_t *)arg)->va_window_gran 686 = adp->va_window_gran; 687 ((video_adapter_info_t *)arg)->va_window_orig 688 = adp->va_window_orig; 689 ((video_adapter_info_t *)arg)->va_unused0 = adp->va_buffer; 690 ((video_adapter_info_t *)arg)->va_buffer_size 691 = adp->va_buffer_size; 692 ((video_adapter_info_t *)arg)->va_mode = adp->va_mode; 693 ((video_adapter_info_t *)arg)->va_initial_mode 694 = adp->va_initial_mode; 695 ((video_adapter_info_t *)arg)->va_initial_bios_mode 696 = adp->va_initial_bios_mode; 697 ((video_adapter_info_t *)arg)->va_line_width 698 = adp->va_line_width; 699 ((video_adapter_info_t *)arg)->va_disp_start.x 700 = adp->va_disp_start.x; 701 ((video_adapter_info_t *)arg)->va_disp_start.y 702 = adp->va_disp_start.y; 703 break; 704 705 case FBIO_MODEINFO: /* get mode information */ 706 error = (*vidsw[adp->va_index]->get_info)(adp, 707 ((video_info_t *)arg)->vi_mode, 708 (video_info_t *)arg); 709 if (error) 710 error = ENODEV; 711 break; 712 713 case FBIO_FINDMODE: /* find a matching video mode */ 714 error = (*vidsw[adp->va_index]->query_mode)(adp, 715 (video_info_t *)arg); 716 break; 717 718 case FBIO_GETMODE: /* get video mode */ 719 *(int *)arg = adp->va_mode; 720 break; 721 722 case FBIO_SETMODE: /* set video mode */ 723 error = (*vidsw[adp->va_index]->set_mode)(adp, *(int *)arg); 724 if (error) 725 error = ENODEV; /* EINVAL? */ 726 break; 727 728 case FBIO_GETWINORG: /* get frame buffer window origin */ 729 *(u_int *)arg = adp->va_window_orig; 730 break; 731 732 case FBIO_GETDISPSTART: /* get display start address */ 733 ((video_display_start_t *)arg)->x = adp->va_disp_start.x; 734 ((video_display_start_t *)arg)->y = adp->va_disp_start.y; 735 break; 736 737 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 738 *(u_int *)arg = adp->va_line_width; 739 break; 740 741 case FBIO_GETPALETTE: /* get color palette */ 742 case FBIO_SETPALETTE: /* set color palette */ 743 /* XXX */ 744 745 case FBIOPUTCMAP: 746 case FBIOGETCMAP: 747 /* XXX */ 748 749 case FBIO_SETWINORG: /* set frame buffer window origin */ 750 case FBIO_SETDISPSTART: /* set display start address */ 751 case FBIO_SETLINEWIDTH: /* set scan line width in pixel */ 752 753 case FBIOGTYPE: 754 case FBIOGATTR: 755 case FBIOSVIDEO: 756 case FBIOGVIDEO: 757 case FBIOSCURSOR: 758 case FBIOGCURSOR: 759 case FBIOSCURPOS: 760 case FBIOGCURPOS: 761 case FBIOGCURMAX: 762 763 default: 764 error = ENODEV; 765 break; 766 } 767 768 crit_exit(); 769 lwkt_reltoken(&vga_token); 770 return error; 771 } 772