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: src/sys/dev/fb/fb.c,v 1.11.2.2 2000/08/02 22:35:22 peter Exp $ 29 * $DragonFly: src/sys/dev/video/fb/fb.c,v 1.9 2004/05/19 22:52:54 dillon Exp $ 30 */ 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/uio.h> 41 #include <sys/fbio.h> 42 #include <sys/linker_set.h> 43 #include <sys/device.h> 44 45 #include <vm/vm.h> 46 #include <vm/pmap.h> 47 48 #include "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 dev_t vidcdevsw_ini; 69 static dev_t *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 dev_t *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); 91 new_vidsw = malloc(sizeof(*new_vidsw)*newsize, M_DEVBUF, M_WAITOK); 92 #ifdef FB_INSTALL_CDEV 93 new_cdevsw = malloc(sizeof(*new_cdevsw)*newsize, M_DEVBUF, M_WAITOK); 94 #endif 95 bzero(new_adp, sizeof(*new_adp)*newsize); 96 bzero(new_vidsw, sizeof(*new_vidsw)*newsize); 97 bcopy(adapter, new_adp, sizeof(*adapter)*adapters); 98 bcopy(vidsw, new_vidsw, sizeof(*vidsw)*adapters); 99 #ifdef FB_INSTALL_CDEV 100 bzero(new_cdevsw, sizeof(*new_cdevsw)*newsize); 101 bcopy(vidcdevsw, new_cdevsw, sizeof(*vidcdevsw)*adapters); 102 #endif 103 if (adapters > 1) { 104 free(adapter, M_DEVBUF); 105 free(vidsw, M_DEVBUF); 106 #ifdef FB_INSTALL_CDEV 107 free(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 splx(s); 117 118 if (bootverbose) 119 printf("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_SUB_KMEM, 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 SET_FOREACH(list, videodriver_set) { 169 p = *list; 170 if (strcmp(p->name, adp->va_name) == 0) { 171 adapter[index] = adp; 172 vidsw[index] = p->vidsw; 173 return index; 174 } 175 } 176 177 return -1; 178 } 179 180 int 181 vid_unregister(video_adapter_t *adp) 182 { 183 if ((adp->va_index < 0) || (adp->va_index >= adapters)) 184 return ENOENT; 185 if (adapter[adp->va_index] != adp) 186 return ENOENT; 187 188 adapter[adp->va_index] = NULL; 189 vidsw[adp->va_index] = NULL; 190 return 0; 191 } 192 193 /* Get video I/O function table */ 194 video_switch_t 195 *vid_get_switch(char *name) 196 { 197 const video_driver_t **list; 198 const video_driver_t *p; 199 200 SET_FOREACH(list, videodriver_set) { 201 p = *list; 202 if (strcmp(p->name, name) == 0) 203 return p->vidsw; 204 } 205 206 return NULL; 207 } 208 209 /* 210 * Video card client functions 211 * Video card clients, such as the console driver `syscons' and the frame 212 * buffer cdev driver, use these functions to claim and release a card for 213 * exclusive use. 214 */ 215 216 /* find the video card specified by a driver name and a unit number */ 217 int 218 vid_find_adapter(char *driver, int unit) 219 { 220 int i; 221 222 for (i = 0; i < adapters; ++i) { 223 if (adapter[i] == NULL) 224 continue; 225 if (strcmp("*", driver) && strcmp(adapter[i]->va_name, driver)) 226 continue; 227 if ((unit != -1) && (adapter[i]->va_unit != unit)) 228 continue; 229 return i; 230 } 231 return -1; 232 } 233 234 /* allocate a video card */ 235 int 236 vid_allocate(char *driver, int unit, void *id) 237 { 238 int index; 239 int s; 240 241 s = spltty(); 242 index = vid_find_adapter(driver, unit); 243 if (index >= 0) { 244 if (adapter[index]->va_token) { 245 splx(s); 246 return -1; 247 } 248 adapter[index]->va_token = id; 249 } 250 splx(s); 251 return index; 252 } 253 254 int 255 vid_release(video_adapter_t *adp, void *id) 256 { 257 int error; 258 int s; 259 260 s = spltty(); 261 if (adp->va_token == NULL) { 262 error = EINVAL; 263 } else if (adp->va_token != id) { 264 error = EPERM; 265 } else { 266 adp->va_token = NULL; 267 error = 0; 268 } 269 splx(s); 270 return error; 271 } 272 273 /* Get a video adapter structure */ 274 video_adapter_t 275 *vid_get_adapter(int index) 276 { 277 if ((index < 0) || (index >= adapters)) 278 return NULL; 279 return adapter[index]; 280 } 281 282 /* Configure drivers: this is a backdoor for the console driver XXX */ 283 int 284 vid_configure(int flags) 285 { 286 const video_driver_t **list; 287 const video_driver_t *p; 288 289 SET_FOREACH(list, videodriver_set) { 290 p = *list; 291 if (p->configure != NULL) 292 (*p->configure)(flags); 293 } 294 295 return 0; 296 } 297 298 /* 299 * Virtual frame buffer cdev driver functions 300 * The virtual frame buffer driver dispatches driver functions to 301 * appropriate subdrivers. 302 */ 303 304 #define FB_DRIVER_NAME "fb" 305 306 #ifdef FB_INSTALL_CDEV 307 308 #if experimental 309 310 static devclass_t fb_devclass; 311 312 static int fbprobe(device_t dev); 313 static int fbattach(device_t dev); 314 315 static device_method_t fb_methods[] = { 316 DEVMETHOD(device_probe, fbprobe), 317 DEVMETHOD(device_attach, fbattach), 318 319 DEVMETHOD(bus_print_child, bus_generic_print_child), 320 { 0, 0 } 321 }; 322 323 static driver_t fb_driver = { 324 FB_DRIVER_NAME, 325 fb_methods, 326 0, 327 }; 328 329 static int 330 fbprobe(device_t dev) 331 { 332 int unit; 333 334 unit = device_get_unit(dev); 335 if (unit >= adapters) 336 return ENXIO; 337 if (adapter[unit] == NULL) 338 return ENXIO; 339 340 device_set_desc(dev, "generic frame buffer"); 341 return 0; 342 } 343 344 static int 345 fbattach(device_t dev) 346 { 347 printf("fbattach: about to attach children\n"); 348 bus_generic_attach(dev); 349 return 0; 350 } 351 352 #endif /* experimental */ 353 354 #define FB_UNIT(dev) minor(dev) 355 #define FB_MKMINOR(unit) (u) 356 357 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 #define CDEV_MAJOR 123 /* XXX */ 365 366 static struct cdevsw fb_cdevsw = { 367 /* name */ FB_DRIVER_NAME, 368 /* maj */ CDEV_MAJOR, 369 /* flags */ 0, 370 /* port */ NULL, 371 /* clone */ NULL, 372 373 /* open */ fbopen, 374 /* close */ fbclose, 375 /* read */ fbread, 376 /* write */ fbwrite, 377 /* ioctl */ fbioctl, 378 /* poll */ nopoll, 379 /* mmap */ fbmmap, 380 /* strategy */ nostrategy, 381 /* dump */ nodump, 382 /* psize */ nopsize 383 }; 384 385 static void 386 vfbattach(void *arg) 387 { 388 static int fb_devsw_installed = FALSE; 389 390 if (!fb_devsw_installed) { 391 cdevsw_add(&fb_cdevsw, 0, 0); 392 fb_devsw_installed = TRUE; 393 } 394 } 395 396 PSEUDO_SET(vfbattach, fb); 397 398 /* 399 * Note: dev represents the actual video device, not the frame buffer 400 */ 401 int 402 fb_attach(dev_t dev, video_adapter_t *adp) 403 { 404 int s; 405 406 if (adp->va_index >= adapters) 407 return EINVAL; 408 if (adapter[adp->va_index] != adp) 409 return EINVAL; 410 411 s = spltty(); 412 reference_dev(dev); 413 adp->va_minor = minor(dev); 414 vidcdevsw[adp->va_index] = dev; 415 splx(s); 416 417 printf("fb%d at %s%d\n", adp->va_index, adp->va_name, adp->va_unit); 418 return 0; 419 } 420 421 /* 422 * Note: dev represents the actual video device, not the frame buffer 423 */ 424 int 425 fb_detach(dev_t dev, video_adapter_t *adp) 426 { 427 int s; 428 429 if (adp->va_index >= adapters) 430 return EINVAL; 431 if (adapter[adp->va_index] != adp) 432 return EINVAL; 433 if (vidcdevsw[adp->va_index] != dev) 434 return EINVAL; 435 436 s = spltty(); 437 vidcdevsw[adp->va_index] = NULL; 438 splx(s); 439 release_dev(dev); 440 return 0; 441 } 442 443 static int 444 fbopen(dev_t dev, int flag, int mode, struct thread *td) 445 { 446 int unit; 447 dev_t fdev; 448 449 unit = FB_UNIT(dev); 450 if (unit >= adapters) 451 return ENXIO; 452 if ((fdev = vidcdevsw[unit]) == NULL) 453 return ENXIO; 454 return dev_dopen(fdev, flag, mode, td); 455 } 456 457 static int 458 fbclose(dev_t dev, int flag, int mode, struct thread *td) 459 { 460 int unit; 461 dev_t fdev; 462 463 unit = FB_UNIT(dev); 464 if ((fdev = vidcdevsw[unit]) == NULL) 465 return ENXIO; 466 return dev_dclose(fdev, flag, mode, td); 467 } 468 469 static int 470 fbread(dev_t dev, struct uio *uio, int flag) 471 { 472 int unit; 473 dev_t fdev; 474 475 unit = FB_UNIT(dev); 476 if ((fdev = vidcdevsw[unit]) == NULL) 477 return ENXIO; 478 return dev_dread(fdev, uio, flag); 479 } 480 481 static int 482 fbwrite(dev_t dev, struct uio *uio, int flag) 483 { 484 int unit; 485 dev_t fdev; 486 487 unit = FB_UNIT(dev); 488 if ((fdev = vidcdevsw[unit]) == NULL) 489 return ENXIO; 490 return dev_dwrite(fdev, uio, flag); 491 } 492 493 static int 494 fbioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct thread *td) 495 { 496 int unit; 497 dev_t fdev; 498 499 unit = FB_UNIT(dev); 500 if ((fdev = vidcdevsw[unit]) == NULL) 501 return ENXIO; 502 return dev_dioctl(fdev, cmd, arg, flag, td); 503 } 504 505 static int 506 fbmmap(dev_t dev, vm_offset_t offset, int nprot) 507 { 508 int unit; 509 dev_t fdev; 510 511 unit = FB_UNIT(dev); 512 if ((fdev = vidcdevsw[unit]) == NULL) 513 return ENXIO; 514 return (dev_dmmap(fdev, offset, nprot)); 515 } 516 517 #if experimental 518 DEV_DRIVER_MODULE(fb, ???, fb_driver, fb_devclass, fb_cdevsw, 0, 0); 519 #endif 520 521 /* 522 * Generic frame buffer cdev driver functions 523 * Frame buffer subdrivers may call these functions to implement common 524 * driver functions. 525 */ 526 527 int genfbopen(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 528 struct thread *td) 529 { 530 int s; 531 532 s = spltty(); 533 if (!(sc->gfb_flags & FB_OPEN)) 534 sc->gfb_flags |= FB_OPEN; 535 splx(s); 536 return 0; 537 } 538 539 int genfbclose(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 540 struct thread *td) 541 { 542 int s; 543 544 s = spltty(); 545 sc->gfb_flags &= ~FB_OPEN; 546 splx(s); 547 return 0; 548 } 549 550 int genfbread(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 551 int flag) 552 { 553 int size; 554 int offset; 555 int error; 556 int len; 557 558 error = 0; 559 size = adp->va_buffer_size/adp->va_info.vi_planes; 560 while (uio->uio_resid > 0) { 561 if (uio->uio_offset >= size) 562 break; 563 offset = uio->uio_offset%adp->va_window_size; 564 len = imin(uio->uio_resid, size - uio->uio_offset); 565 len = imin(len, adp->va_window_size - offset); 566 if (len <= 0) 567 break; 568 (*vidsw[adp->va_index]->set_win_org)(adp, uio->uio_offset); 569 error = uiomove((caddr_t)(adp->va_window + offset), len, uio); 570 if (error) 571 break; 572 } 573 return error; 574 } 575 576 int genfbwrite(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 577 int flag) 578 { 579 return ENODEV; 580 } 581 582 int genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, u_long cmd, 583 caddr_t arg, int flag, struct thread *td) 584 { 585 int error; 586 587 if (adp == NULL) /* XXX */ 588 return ENXIO; 589 error = (*vidsw[adp->va_index]->ioctl)(adp, cmd, arg); 590 if (error == ENOIOCTL) 591 error = ENODEV; 592 return error; 593 } 594 595 int genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, vm_offset_t offset, 596 int prot) 597 { 598 return (*vidsw[adp->va_index]->mmap)(adp, offset, prot); 599 } 600 601 #endif /* FB_INSTALL_CDEV */ 602 603 static char 604 *adapter_name(int type) 605 { 606 static struct { 607 int type; 608 char *name; 609 } names[] = { 610 { KD_MONO, "MDA" }, 611 { KD_HERCULES, "Hercules" }, 612 { KD_CGA, "CGA" }, 613 { KD_EGA, "EGA" }, 614 { KD_VGA, "VGA" }, 615 { KD_PC98, "PC-98x1" }, 616 { KD_TGA, "TGA" }, 617 { -1, "Unknown" }, 618 }; 619 int i; 620 621 for (i = 0; names[i].type != -1; ++i) 622 if (names[i].type == type) 623 break; 624 return names[i].name; 625 } 626 627 /* 628 * Generic low-level frame buffer functions 629 * The low-level functions in the frame buffer subdriver may use these 630 * functions. 631 */ 632 633 void 634 fb_dump_adp_info(char *driver, video_adapter_t *adp, int level) 635 { 636 if (level <= 0) 637 return; 638 639 printf("%s%d: %s%d, %s, type:%s (%d), flags:0x%x\n", 640 FB_DRIVER_NAME, adp->va_index, driver, adp->va_unit, adp->va_name, 641 adapter_name(adp->va_type), adp->va_type, adp->va_flags); 642 printf("%s%d: port:0x%x-0x%x, crtc:0x%x, mem:0x%x 0x%x\n", 643 FB_DRIVER_NAME, adp->va_index, 644 adp->va_io_base, adp->va_io_base + adp->va_io_size - 1, 645 adp->va_crtc_addr, adp->va_mem_base, adp->va_mem_size); 646 printf("%s%d: init mode:%d, bios mode:%d, current mode:%d\n", 647 FB_DRIVER_NAME, adp->va_index, 648 adp->va_initial_mode, adp->va_initial_bios_mode, adp->va_mode); 649 printf("%s%d: window:%p size:%dk gran:%dk, buf:%p size:%dk\n", 650 FB_DRIVER_NAME, adp->va_index, 651 (void *)adp->va_window, (int)adp->va_window_size/1024, 652 (int)adp->va_window_gran/1024, (void *)adp->va_buffer, 653 (int)adp->va_buffer_size/1024); 654 } 655 656 void 657 fb_dump_mode_info(char *driver, video_adapter_t *adp, video_info_t *info, 658 int level) 659 { 660 if (level <= 0) 661 return; 662 663 printf("%s%d: %s, mode:%d, flags:0x%x ", 664 driver, adp->va_unit, adp->va_name, info->vi_mode, info->vi_flags); 665 if (info->vi_flags & V_INFO_GRAPHICS) 666 printf("G %dx%dx%d, %d plane(s), font:%dx%d, ", 667 info->vi_width, info->vi_height, 668 info->vi_depth, info->vi_planes, 669 info->vi_cwidth, info->vi_cheight); 670 else 671 printf("T %dx%d, font:%dx%d, ", 672 info->vi_width, info->vi_height, 673 info->vi_cwidth, info->vi_cheight); 674 printf("win:0x%x\n", info->vi_window); 675 } 676 677 int 678 fb_type(int adp_type) 679 { 680 static struct { 681 int fb_type; 682 int va_type; 683 } types[] = { 684 { FBTYPE_MDA, KD_MONO }, 685 { FBTYPE_HERCULES, KD_HERCULES }, 686 { FBTYPE_CGA, KD_CGA }, 687 { FBTYPE_EGA, KD_EGA }, 688 { FBTYPE_VGA, KD_VGA }, 689 { FBTYPE_PC98, KD_PC98 }, 690 { FBTYPE_TGA, KD_TGA }, 691 }; 692 int i; 693 694 for (i = 0; i < sizeof(types)/sizeof(types[0]); ++i) { 695 if (types[i].va_type == adp_type) 696 return types[i].fb_type; 697 } 698 return -1; 699 } 700 701 int 702 fb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 703 { 704 int error; 705 int s; 706 707 /* assert(adp != NULL) */ 708 709 error = 0; 710 s = spltty(); 711 712 switch (cmd) { 713 714 case FBIO_ADAPTER: /* get video adapter index */ 715 *(int *)arg = adp->va_index; 716 break; 717 718 case FBIO_ADPTYPE: /* get video adapter type */ 719 *(int *)arg = adp->va_type; 720 break; 721 722 case FBIO_ADPINFO: /* get video adapter info */ 723 ((video_adapter_info_t *)arg)->va_index = adp->va_index; 724 ((video_adapter_info_t *)arg)->va_type = adp->va_type; 725 bcopy(adp->va_name, ((video_adapter_info_t *)arg)->va_name, 726 imin(strlen(adp->va_name) + 1, 727 sizeof(((video_adapter_info_t *)arg)->va_name))); 728 ((video_adapter_info_t *)arg)->va_unit = adp->va_unit; 729 ((video_adapter_info_t *)arg)->va_flags = adp->va_flags; 730 ((video_adapter_info_t *)arg)->va_io_base = adp->va_io_base; 731 ((video_adapter_info_t *)arg)->va_io_size = adp->va_io_size; 732 ((video_adapter_info_t *)arg)->va_crtc_addr = adp->va_crtc_addr; 733 ((video_adapter_info_t *)arg)->va_mem_base = adp->va_mem_base; 734 ((video_adapter_info_t *)arg)->va_mem_size = adp->va_mem_size; 735 ((video_adapter_info_t *)arg)->va_window 736 #ifdef __i386__ 737 = vtophys(adp->va_window); 738 #else 739 = adp->va_window; 740 #endif 741 ((video_adapter_info_t *)arg)->va_window_size 742 = adp->va_window_size; 743 ((video_adapter_info_t *)arg)->va_window_gran 744 = adp->va_window_gran; 745 ((video_adapter_info_t *)arg)->va_window_orig 746 = adp->va_window_orig; 747 ((video_adapter_info_t *)arg)->va_unused0 748 #ifdef __i386__ 749 = (adp->va_buffer) ? vtophys(adp->va_buffer) : 0; 750 #else 751 = adp->va_buffer; 752 #endif 753 ((video_adapter_info_t *)arg)->va_buffer_size 754 = adp->va_buffer_size; 755 ((video_adapter_info_t *)arg)->va_mode = adp->va_mode; 756 ((video_adapter_info_t *)arg)->va_initial_mode 757 = adp->va_initial_mode; 758 ((video_adapter_info_t *)arg)->va_initial_bios_mode 759 = adp->va_initial_bios_mode; 760 ((video_adapter_info_t *)arg)->va_line_width 761 = adp->va_line_width; 762 ((video_adapter_info_t *)arg)->va_disp_start.x 763 = adp->va_disp_start.x; 764 ((video_adapter_info_t *)arg)->va_disp_start.y 765 = adp->va_disp_start.y; 766 break; 767 768 case FBIO_MODEINFO: /* get mode information */ 769 error = (*vidsw[adp->va_index]->get_info)(adp, 770 ((video_info_t *)arg)->vi_mode, 771 (video_info_t *)arg); 772 if (error) 773 error = ENODEV; 774 break; 775 776 case FBIO_FINDMODE: /* find a matching video mode */ 777 error = (*vidsw[adp->va_index]->query_mode)(adp, 778 (video_info_t *)arg); 779 break; 780 781 case FBIO_GETMODE: /* get video mode */ 782 *(int *)arg = adp->va_mode; 783 break; 784 785 case FBIO_SETMODE: /* set video mode */ 786 error = (*vidsw[adp->va_index]->set_mode)(adp, *(int *)arg); 787 if (error) 788 error = ENODEV; /* EINVAL? */ 789 break; 790 791 case FBIO_GETWINORG: /* get frame buffer window origin */ 792 *(u_int *)arg = adp->va_window_orig; 793 break; 794 795 case FBIO_GETDISPSTART: /* get display start address */ 796 ((video_display_start_t *)arg)->x = adp->va_disp_start.x; 797 ((video_display_start_t *)arg)->y = adp->va_disp_start.y; 798 break; 799 800 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 801 *(u_int *)arg = adp->va_line_width; 802 break; 803 804 case FBIO_GETPALETTE: /* get color palette */ 805 case FBIO_SETPALETTE: /* set color palette */ 806 /* XXX */ 807 808 case FBIOPUTCMAP: 809 case FBIOGETCMAP: 810 /* XXX */ 811 812 case FBIO_SETWINORG: /* set frame buffer window origin */ 813 case FBIO_SETDISPSTART: /* set display start address */ 814 case FBIO_SETLINEWIDTH: /* set scan line width in pixel */ 815 816 case FBIOGTYPE: 817 case FBIOGATTR: 818 case FBIOSVIDEO: 819 case FBIOGVIDEO: 820 case FBIOSCURSOR: 821 case FBIOGCURSOR: 822 case FBIOSCURPOS: 823 case FBIOGCURPOS: 824 case FBIOGCURMAX: 825 826 default: 827 error = ENODEV; 828 break; 829 } 830 831 splx(s); 832 return error; 833 } 834