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 1.12 2005/07/10 00:52:24 swildner 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 #include <sys/thread2.h> 45 46 #include <vm/vm.h> 47 #include <vm/pmap.h> 48 49 #include "fbreg.h" 50 51 SET_DECLARE(videodriver_set, const video_driver_t); 52 53 /* local arrays */ 54 55 /* 56 * We need at least one entry each in order to initialize a video card 57 * for the kernel console. The arrays will be increased dynamically 58 * when necessary. 59 */ 60 61 static int vid_malloc; 62 static int adapters = 1; 63 static video_adapter_t *adp_ini; 64 static video_adapter_t **adapter = &adp_ini; 65 static video_switch_t *vidsw_ini; 66 video_switch_t **vidsw = &vidsw_ini; 67 68 #ifdef FB_INSTALL_CDEV 69 static dev_t vidcdevsw_ini; 70 static dev_t *vidcdevsw = &vidcdevsw_ini; 71 #endif 72 73 #define ARRAY_DELTA 4 74 75 static int 76 vid_realloc_array(void) 77 { 78 video_adapter_t **new_adp; 79 video_switch_t **new_vidsw; 80 #ifdef FB_INSTALL_CDEV 81 dev_t *new_cdevsw; 82 #endif 83 int newsize; 84 85 if (!vid_malloc) 86 return ENOMEM; 87 88 crit_enter(); 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 crit_exit(); 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; 238 239 crit_enter(); 240 index = vid_find_adapter(driver, unit); 241 if (index >= 0) { 242 if (adapter[index]->va_token) { 243 crit_exit(); 244 return -1; 245 } 246 adapter[index]->va_token = id; 247 } 248 crit_exit(); 249 return index; 250 } 251 252 int 253 vid_release(video_adapter_t *adp, void *id) 254 { 255 int error; 256 257 crit_enter(); 258 if (adp->va_token == NULL) { 259 error = EINVAL; 260 } else if (adp->va_token != id) { 261 error = EPERM; 262 } else { 263 adp->va_token = NULL; 264 error = 0; 265 } 266 crit_exit(); 267 return error; 268 } 269 270 /* Get a video adapter structure */ 271 video_adapter_t 272 *vid_get_adapter(int index) 273 { 274 if ((index < 0) || (index >= adapters)) 275 return NULL; 276 return adapter[index]; 277 } 278 279 /* Configure drivers: this is a backdoor for the console driver XXX */ 280 int 281 vid_configure(int flags) 282 { 283 const video_driver_t **list; 284 const video_driver_t *p; 285 286 SET_FOREACH(list, videodriver_set) { 287 p = *list; 288 if (p->configure != NULL) 289 (*p->configure)(flags); 290 } 291 292 return 0; 293 } 294 295 /* 296 * Virtual frame buffer cdev driver functions 297 * The virtual frame buffer driver dispatches driver functions to 298 * appropriate subdrivers. 299 */ 300 301 #define FB_DRIVER_NAME "fb" 302 303 #ifdef FB_INSTALL_CDEV 304 305 #if experimental 306 307 static devclass_t fb_devclass; 308 309 static int fbprobe(device_t dev); 310 static int fbattach(device_t dev); 311 312 static device_method_t fb_methods[] = { 313 DEVMETHOD(device_probe, fbprobe), 314 DEVMETHOD(device_attach, fbattach), 315 316 DEVMETHOD(bus_print_child, bus_generic_print_child), 317 { 0, 0 } 318 }; 319 320 static driver_t fb_driver = { 321 FB_DRIVER_NAME, 322 fb_methods, 323 0, 324 }; 325 326 static int 327 fbprobe(device_t dev) 328 { 329 int unit; 330 331 unit = device_get_unit(dev); 332 if (unit >= adapters) 333 return ENXIO; 334 if (adapter[unit] == NULL) 335 return ENXIO; 336 337 device_set_desc(dev, "generic frame buffer"); 338 return 0; 339 } 340 341 static int 342 fbattach(device_t dev) 343 { 344 printf("fbattach: about to attach children\n"); 345 bus_generic_attach(dev); 346 return 0; 347 } 348 349 #endif /* experimental */ 350 351 #define FB_UNIT(dev) minor(dev) 352 #define FB_MKMINOR(unit) (u) 353 354 static d_open_t fbopen; 355 static d_close_t fbclose; 356 static d_read_t fbread; 357 static d_write_t fbwrite; 358 static d_ioctl_t fbioctl; 359 static d_mmap_t fbmmap; 360 361 #define CDEV_MAJOR 123 /* XXX */ 362 363 static struct cdevsw fb_cdevsw = { 364 /* name */ FB_DRIVER_NAME, 365 /* maj */ CDEV_MAJOR, 366 /* flags */ 0, 367 /* port */ NULL, 368 /* clone */ NULL, 369 370 /* open */ fbopen, 371 /* close */ fbclose, 372 /* read */ fbread, 373 /* write */ fbwrite, 374 /* ioctl */ fbioctl, 375 /* poll */ nopoll, 376 /* mmap */ fbmmap, 377 /* strategy */ nostrategy, 378 /* dump */ nodump, 379 /* psize */ nopsize 380 }; 381 382 static void 383 vfbattach(void *arg) 384 { 385 static int fb_devsw_installed = FALSE; 386 387 if (!fb_devsw_installed) { 388 cdevsw_add(&fb_cdevsw, 0, 0); 389 fb_devsw_installed = TRUE; 390 } 391 } 392 393 PSEUDO_SET(vfbattach, fb); 394 395 /* 396 * Note: dev represents the actual video device, not the frame buffer 397 */ 398 int 399 fb_attach(dev_t dev, video_adapter_t *adp) 400 { 401 if (adp->va_index >= adapters) 402 return EINVAL; 403 if (adapter[adp->va_index] != adp) 404 return EINVAL; 405 406 crit_enter(); 407 reference_dev(dev); 408 adp->va_minor = minor(dev); 409 vidcdevsw[adp->va_index] = dev; 410 crit_exit(); 411 412 printf("fb%d at %s%d\n", adp->va_index, adp->va_name, adp->va_unit); 413 return 0; 414 } 415 416 /* 417 * Note: dev represents the actual video device, not the frame buffer 418 */ 419 int 420 fb_detach(dev_t dev, video_adapter_t *adp) 421 { 422 if (adp->va_index >= adapters) 423 return EINVAL; 424 if (adapter[adp->va_index] != adp) 425 return EINVAL; 426 if (vidcdevsw[adp->va_index] != dev) 427 return EINVAL; 428 429 crit_enter(); 430 vidcdevsw[adp->va_index] = NULL; 431 crit_exit(); 432 release_dev(dev); 433 return 0; 434 } 435 436 static int 437 fbopen(dev_t dev, int flag, int mode, struct thread *td) 438 { 439 int unit; 440 dev_t fdev; 441 442 unit = FB_UNIT(dev); 443 if (unit >= adapters) 444 return ENXIO; 445 if ((fdev = vidcdevsw[unit]) == NULL) 446 return ENXIO; 447 return dev_dopen(fdev, flag, mode, td); 448 } 449 450 static int 451 fbclose(dev_t dev, int flag, int mode, struct thread *td) 452 { 453 int unit; 454 dev_t fdev; 455 456 unit = FB_UNIT(dev); 457 if ((fdev = vidcdevsw[unit]) == NULL) 458 return ENXIO; 459 return dev_dclose(fdev, flag, mode, td); 460 } 461 462 static int 463 fbread(dev_t dev, struct uio *uio, int flag) 464 { 465 int unit; 466 dev_t fdev; 467 468 unit = FB_UNIT(dev); 469 if ((fdev = vidcdevsw[unit]) == NULL) 470 return ENXIO; 471 return dev_dread(fdev, uio, flag); 472 } 473 474 static int 475 fbwrite(dev_t dev, struct uio *uio, int flag) 476 { 477 int unit; 478 dev_t fdev; 479 480 unit = FB_UNIT(dev); 481 if ((fdev = vidcdevsw[unit]) == NULL) 482 return ENXIO; 483 return dev_dwrite(fdev, uio, flag); 484 } 485 486 static int 487 fbioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct thread *td) 488 { 489 int unit; 490 dev_t fdev; 491 492 unit = FB_UNIT(dev); 493 if ((fdev = vidcdevsw[unit]) == NULL) 494 return ENXIO; 495 return dev_dioctl(fdev, cmd, arg, flag, td); 496 } 497 498 static int 499 fbmmap(dev_t dev, vm_offset_t offset, int nprot) 500 { 501 int unit; 502 dev_t fdev; 503 504 unit = FB_UNIT(dev); 505 if ((fdev = vidcdevsw[unit]) == NULL) 506 return ENXIO; 507 return (dev_dmmap(fdev, offset, nprot)); 508 } 509 510 #if experimental 511 DEV_DRIVER_MODULE(fb, ???, fb_driver, fb_devclass, fb_cdevsw, 0, 0); 512 #endif 513 514 /* 515 * Generic frame buffer cdev driver functions 516 * Frame buffer subdrivers may call these functions to implement common 517 * driver functions. 518 */ 519 520 int genfbopen(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 521 struct thread *td) 522 { 523 crit_enter(); 524 if (!(sc->gfb_flags & FB_OPEN)) 525 sc->gfb_flags |= FB_OPEN; 526 crit_exit(); 527 return 0; 528 } 529 530 int genfbclose(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 531 struct thread *td) 532 { 533 crit_enter(); 534 sc->gfb_flags &= ~FB_OPEN; 535 crit_exit(); 536 return 0; 537 } 538 539 int genfbread(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 540 int flag) 541 { 542 int size; 543 int offset; 544 int error; 545 int len; 546 547 error = 0; 548 size = adp->va_buffer_size/adp->va_info.vi_planes; 549 while (uio->uio_resid > 0) { 550 if (uio->uio_offset >= size) 551 break; 552 offset = uio->uio_offset%adp->va_window_size; 553 len = imin(uio->uio_resid, size - uio->uio_offset); 554 len = imin(len, adp->va_window_size - offset); 555 if (len <= 0) 556 break; 557 (*vidsw[adp->va_index]->set_win_org)(adp, uio->uio_offset); 558 error = uiomove((caddr_t)(adp->va_window + offset), len, uio); 559 if (error) 560 break; 561 } 562 return error; 563 } 564 565 int genfbwrite(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 566 int flag) 567 { 568 return ENODEV; 569 } 570 571 int genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, u_long cmd, 572 caddr_t arg, int flag, struct thread *td) 573 { 574 int error; 575 576 if (adp == NULL) /* XXX */ 577 return ENXIO; 578 error = (*vidsw[adp->va_index]->ioctl)(adp, cmd, arg); 579 if (error == ENOIOCTL) 580 error = ENODEV; 581 return error; 582 } 583 584 int genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, vm_offset_t offset, 585 int prot) 586 { 587 return (*vidsw[adp->va_index]->mmap)(adp, offset, prot); 588 } 589 590 #endif /* FB_INSTALL_CDEV */ 591 592 static char 593 *adapter_name(int type) 594 { 595 static struct { 596 int type; 597 char *name; 598 } names[] = { 599 { KD_MONO, "MDA" }, 600 { KD_HERCULES, "Hercules" }, 601 { KD_CGA, "CGA" }, 602 { KD_EGA, "EGA" }, 603 { KD_VGA, "VGA" }, 604 { KD_TGA, "TGA" }, 605 { -1, "Unknown" }, 606 }; 607 int i; 608 609 for (i = 0; names[i].type != -1; ++i) 610 if (names[i].type == type) 611 break; 612 return names[i].name; 613 } 614 615 /* 616 * Generic low-level frame buffer functions 617 * The low-level functions in the frame buffer subdriver may use these 618 * functions. 619 */ 620 621 void 622 fb_dump_adp_info(char *driver, video_adapter_t *adp, int level) 623 { 624 if (level <= 0) 625 return; 626 627 printf("%s%d: %s%d, %s, type:%s (%d), flags:0x%x\n", 628 FB_DRIVER_NAME, adp->va_index, driver, adp->va_unit, adp->va_name, 629 adapter_name(adp->va_type), adp->va_type, adp->va_flags); 630 printf("%s%d: port:0x%x-0x%x, crtc:0x%x, mem:0x%x 0x%x\n", 631 FB_DRIVER_NAME, adp->va_index, 632 adp->va_io_base, adp->va_io_base + adp->va_io_size - 1, 633 adp->va_crtc_addr, adp->va_mem_base, adp->va_mem_size); 634 printf("%s%d: init mode:%d, bios mode:%d, current mode:%d\n", 635 FB_DRIVER_NAME, adp->va_index, 636 adp->va_initial_mode, adp->va_initial_bios_mode, adp->va_mode); 637 printf("%s%d: window:%p size:%dk gran:%dk, buf:%p size:%dk\n", 638 FB_DRIVER_NAME, adp->va_index, 639 (void *)adp->va_window, (int)adp->va_window_size/1024, 640 (int)adp->va_window_gran/1024, (void *)adp->va_buffer, 641 (int)adp->va_buffer_size/1024); 642 } 643 644 void 645 fb_dump_mode_info(char *driver, video_adapter_t *adp, video_info_t *info, 646 int level) 647 { 648 if (level <= 0) 649 return; 650 651 printf("%s%d: %s, mode:%d, flags:0x%x ", 652 driver, adp->va_unit, adp->va_name, info->vi_mode, info->vi_flags); 653 if (info->vi_flags & V_INFO_GRAPHICS) 654 printf("G %dx%dx%d, %d plane(s), font:%dx%d, ", 655 info->vi_width, info->vi_height, 656 info->vi_depth, info->vi_planes, 657 info->vi_cwidth, info->vi_cheight); 658 else 659 printf("T %dx%d, font:%dx%d, ", 660 info->vi_width, info->vi_height, 661 info->vi_cwidth, info->vi_cheight); 662 printf("win:0x%x\n", info->vi_window); 663 } 664 665 int 666 fb_type(int adp_type) 667 { 668 static struct { 669 int fb_type; 670 int va_type; 671 } types[] = { 672 { FBTYPE_MDA, KD_MONO }, 673 { FBTYPE_HERCULES, KD_HERCULES }, 674 { FBTYPE_CGA, KD_CGA }, 675 { FBTYPE_EGA, KD_EGA }, 676 { FBTYPE_VGA, KD_VGA }, 677 { FBTYPE_TGA, KD_TGA }, 678 }; 679 int i; 680 681 for (i = 0; i < sizeof(types)/sizeof(types[0]); ++i) { 682 if (types[i].va_type == adp_type) 683 return types[i].fb_type; 684 } 685 return -1; 686 } 687 688 int 689 fb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 690 { 691 int error; 692 693 /* assert(adp != NULL) */ 694 695 error = 0; 696 crit_enter(); 697 698 switch (cmd) { 699 700 case FBIO_ADAPTER: /* get video adapter index */ 701 *(int *)arg = adp->va_index; 702 break; 703 704 case FBIO_ADPTYPE: /* get video adapter type */ 705 *(int *)arg = adp->va_type; 706 break; 707 708 case FBIO_ADPINFO: /* get video adapter info */ 709 ((video_adapter_info_t *)arg)->va_index = adp->va_index; 710 ((video_adapter_info_t *)arg)->va_type = adp->va_type; 711 bcopy(adp->va_name, ((video_adapter_info_t *)arg)->va_name, 712 imin(strlen(adp->va_name) + 1, 713 sizeof(((video_adapter_info_t *)arg)->va_name))); 714 ((video_adapter_info_t *)arg)->va_unit = adp->va_unit; 715 ((video_adapter_info_t *)arg)->va_flags = adp->va_flags; 716 ((video_adapter_info_t *)arg)->va_io_base = adp->va_io_base; 717 ((video_adapter_info_t *)arg)->va_io_size = adp->va_io_size; 718 ((video_adapter_info_t *)arg)->va_crtc_addr = adp->va_crtc_addr; 719 ((video_adapter_info_t *)arg)->va_mem_base = adp->va_mem_base; 720 ((video_adapter_info_t *)arg)->va_mem_size = adp->va_mem_size; 721 ((video_adapter_info_t *)arg)->va_window 722 #ifdef __i386__ 723 = vtophys(adp->va_window); 724 #else 725 = adp->va_window; 726 #endif 727 ((video_adapter_info_t *)arg)->va_window_size 728 = adp->va_window_size; 729 ((video_adapter_info_t *)arg)->va_window_gran 730 = adp->va_window_gran; 731 ((video_adapter_info_t *)arg)->va_window_orig 732 = adp->va_window_orig; 733 ((video_adapter_info_t *)arg)->va_unused0 734 #ifdef __i386__ 735 = (adp->va_buffer) ? vtophys(adp->va_buffer) : 0; 736 #else 737 = adp->va_buffer; 738 #endif 739 ((video_adapter_info_t *)arg)->va_buffer_size 740 = adp->va_buffer_size; 741 ((video_adapter_info_t *)arg)->va_mode = adp->va_mode; 742 ((video_adapter_info_t *)arg)->va_initial_mode 743 = adp->va_initial_mode; 744 ((video_adapter_info_t *)arg)->va_initial_bios_mode 745 = adp->va_initial_bios_mode; 746 ((video_adapter_info_t *)arg)->va_line_width 747 = adp->va_line_width; 748 ((video_adapter_info_t *)arg)->va_disp_start.x 749 = adp->va_disp_start.x; 750 ((video_adapter_info_t *)arg)->va_disp_start.y 751 = adp->va_disp_start.y; 752 break; 753 754 case FBIO_MODEINFO: /* get mode information */ 755 error = (*vidsw[adp->va_index]->get_info)(adp, 756 ((video_info_t *)arg)->vi_mode, 757 (video_info_t *)arg); 758 if (error) 759 error = ENODEV; 760 break; 761 762 case FBIO_FINDMODE: /* find a matching video mode */ 763 error = (*vidsw[adp->va_index]->query_mode)(adp, 764 (video_info_t *)arg); 765 break; 766 767 case FBIO_GETMODE: /* get video mode */ 768 *(int *)arg = adp->va_mode; 769 break; 770 771 case FBIO_SETMODE: /* set video mode */ 772 error = (*vidsw[adp->va_index]->set_mode)(adp, *(int *)arg); 773 if (error) 774 error = ENODEV; /* EINVAL? */ 775 break; 776 777 case FBIO_GETWINORG: /* get frame buffer window origin */ 778 *(u_int *)arg = adp->va_window_orig; 779 break; 780 781 case FBIO_GETDISPSTART: /* get display start address */ 782 ((video_display_start_t *)arg)->x = adp->va_disp_start.x; 783 ((video_display_start_t *)arg)->y = adp->va_disp_start.y; 784 break; 785 786 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 787 *(u_int *)arg = adp->va_line_width; 788 break; 789 790 case FBIO_GETPALETTE: /* get color palette */ 791 case FBIO_SETPALETTE: /* set color palette */ 792 /* XXX */ 793 794 case FBIOPUTCMAP: 795 case FBIOGETCMAP: 796 /* XXX */ 797 798 case FBIO_SETWINORG: /* set frame buffer window origin */ 799 case FBIO_SETDISPSTART: /* set display start address */ 800 case FBIO_SETLINEWIDTH: /* set scan line width in pixel */ 801 802 case FBIOGTYPE: 803 case FBIOGATTR: 804 case FBIOSVIDEO: 805 case FBIOGVIDEO: 806 case FBIOSCURSOR: 807 case FBIOGCURSOR: 808 case FBIOSCURPOS: 809 case FBIOGCURPOS: 810 case FBIOGCURMAX: 811 812 default: 813 error = ENODEV; 814 break; 815 } 816 817 crit_exit(); 818 return error; 819 } 820