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 * $Id: fb.c,v 1.7 1999/07/04 14:58:15 phk Exp $ 29 */ 30 31 #include "fb.h" 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 43 #include <vm/vm.h> 44 #include <vm/pmap.h> 45 46 #include <dev/fb/fbreg.h> 47 48 /* local arrays */ 49 50 /* 51 * We need at least one entry each in order to initialize a video card 52 * for the kernel console. The arrays will be increased dynamically 53 * when necessary. 54 */ 55 56 static int vid_malloc; 57 static int adapters = 1; 58 static video_adapter_t *adp_ini; 59 static video_adapter_t **adapter = &adp_ini; 60 static video_switch_t *vidsw_ini; 61 video_switch_t **vidsw = &vidsw_ini; 62 63 #ifdef FB_INSTALL_CDEV 64 static struct cdevsw *vidcdevsw_ini; 65 static struct cdevsw **vidcdevsw = &vidcdevsw_ini; 66 #endif 67 68 #define ARRAY_DELTA 4 69 70 static int 71 vid_realloc_array(void) 72 { 73 video_adapter_t **new_adp; 74 video_switch_t **new_vidsw; 75 #ifdef FB_INSTALL_CDEV 76 struct cdevsw **new_cdevsw; 77 #endif 78 int newsize; 79 int s; 80 81 if (!vid_malloc) 82 return ENOMEM; 83 84 s = spltty(); 85 newsize = ((adapters + ARRAY_DELTA)/ARRAY_DELTA)*ARRAY_DELTA; 86 new_adp = malloc(sizeof(*new_adp)*newsize, M_DEVBUF, M_WAITOK); 87 new_vidsw = malloc(sizeof(*new_vidsw)*newsize, M_DEVBUF, M_WAITOK); 88 #ifdef FB_INSTALL_CDEV 89 new_cdevsw = malloc(sizeof(*new_cdevsw)*newsize, M_DEVBUF, M_WAITOK); 90 #endif 91 bzero(new_adp, sizeof(*new_adp)*newsize); 92 bzero(new_vidsw, sizeof(*new_vidsw)*newsize); 93 bcopy(adapter, new_adp, sizeof(*adapter)*adapters); 94 bcopy(vidsw, new_vidsw, sizeof(*vidsw)*adapters); 95 #ifdef FB_INSTALL_CDEV 96 bzero(new_cdevsw, sizeof(*new_cdevsw)*newsize); 97 bcopy(vidcdevsw, new_cdevsw, sizeof(*vidcdevsw)*adapters); 98 #endif 99 if (adapters > 1) { 100 free(adapter, M_DEVBUF); 101 free(vidsw, M_DEVBUF); 102 #ifdef FB_INSTALL_CDEV 103 free(vidcdevsw, M_DEVBUF); 104 #endif 105 } 106 adapter = new_adp; 107 vidsw = new_vidsw; 108 #ifdef FB_INSTALL_CDEV 109 vidcdevsw = new_cdevsw; 110 #endif 111 adapters = newsize; 112 splx(s); 113 114 if (bootverbose) 115 printf("fb: new array size %d\n", adapters); 116 117 return 0; 118 } 119 120 static void 121 vid_malloc_init(void *arg) 122 { 123 vid_malloc = TRUE; 124 } 125 126 SYSINIT(vid_mem, SI_SUB_KMEM, SI_ORDER_ANY, vid_malloc_init, NULL); 127 128 /* 129 * Low-level frame buffer driver functions 130 * frame buffer subdrivers, such as the VGA driver, call these functions 131 * to initialize the video_adapter structure and register it to the virtual 132 * frame buffer driver `fb'. 133 */ 134 135 /* initialize the video_adapter_t structure */ 136 void 137 vid_init_struct(video_adapter_t *adp, char *name, int type, int unit) 138 { 139 adp->va_flags = 0; 140 adp->va_name = name; 141 adp->va_type = type; 142 adp->va_unit = unit; 143 } 144 145 /* Register a video adapter */ 146 int 147 vid_register(video_adapter_t *adp) 148 { 149 const video_driver_t **list; 150 const video_driver_t *p; 151 int index; 152 153 for (index = 0; index < adapters; ++index) { 154 if (adapter[index] == NULL) 155 break; 156 } 157 if (index >= adapters) { 158 if (vid_realloc_array()) 159 return -1; 160 } 161 162 adp->va_index = index; 163 adp->va_token = NULL; 164 list = (const video_driver_t **)videodriver_set.ls_items; 165 while ((p = *list++) != NULL) { 166 if (strcmp(p->name, adp->va_name) == 0) { 167 adapter[index] = adp; 168 vidsw[index] = p->vidsw; 169 return index; 170 } 171 } 172 173 return -1; 174 } 175 176 int 177 vid_unregister(video_adapter_t *adp) 178 { 179 if ((adp->va_index < 0) || (adp->va_index >= adapters)) 180 return ENOENT; 181 if (adapter[adp->va_index] != adp) 182 return ENOENT; 183 184 adapter[adp->va_index] = NULL; 185 vidsw[adp->va_index] = NULL; 186 return 0; 187 } 188 189 /* Get video I/O function table */ 190 video_switch_t 191 *vid_get_switch(char *name) 192 { 193 const video_driver_t **list; 194 const video_driver_t *p; 195 196 list = (const video_driver_t **)videodriver_set.ls_items; 197 while ((p = *list++) != NULL) { 198 if (strcmp(p->name, name) == 0) 199 return p->vidsw; 200 } 201 202 return NULL; 203 } 204 205 /* 206 * Video card client functions 207 * Video card clients, such as the console driver `syscons' and the frame 208 * buffer cdev driver, use these functions to claim and release a card for 209 * exclusive use. 210 */ 211 212 /* find the video card specified by a driver name and a unit number */ 213 int 214 vid_find_adapter(char *driver, int unit) 215 { 216 int i; 217 218 for (i = 0; i < adapters; ++i) { 219 if (adapter[i] == NULL) 220 continue; 221 if (strcmp("*", driver) && strcmp(adapter[i]->va_name, driver)) 222 continue; 223 if ((unit != -1) && (adapter[i]->va_unit != unit)) 224 continue; 225 return i; 226 } 227 return -1; 228 } 229 230 /* allocate a video card */ 231 int 232 vid_allocate(char *driver, int unit, void *id) 233 { 234 int index; 235 int s; 236 237 s = spltty(); 238 index = vid_find_adapter(driver, unit); 239 if (index >= 0) { 240 if (adapter[index]->va_token) { 241 splx(s); 242 return -1; 243 } 244 adapter[index]->va_token = id; 245 } 246 splx(s); 247 return index; 248 } 249 250 int 251 vid_release(video_adapter_t *adp, void *id) 252 { 253 int error; 254 int s; 255 256 s = spltty(); 257 if (adp->va_token == NULL) { 258 error = EINVAL; 259 } else if (adp->va_token != id) { 260 error = EPERM; 261 } else { 262 adp->va_token = NULL; 263 error = 0; 264 } 265 splx(s); 266 return error; 267 } 268 269 /* Get a video adapter structure */ 270 video_adapter_t 271 *vid_get_adapter(int index) 272 { 273 if ((index < 0) || (index >= adapters)) 274 return NULL; 275 return adapter[index]; 276 } 277 278 /* Configure drivers: this is a backdoor for the console driver XXX */ 279 int 280 vid_configure(int flags) 281 { 282 const video_driver_t **list; 283 const video_driver_t *p; 284 285 list = (const video_driver_t **)videodriver_set.ls_items; 286 while ((p = *list++) != NULL) { 287 if (p->configure != NULL) 288 (*p->configure)(flags); 289 } 290 291 return 0; 292 } 293 294 /* 295 * Virtual frame buffer cdev driver functions 296 * The virtual frame buffer driver dispatches driver functions to 297 * appropriate subdrivers. 298 */ 299 300 #define FB_DRIVER_NAME "fb" 301 302 #ifdef FB_INSTALL_CDEV 303 304 #if experimental 305 306 static devclass_t fb_devclass; 307 308 static int fbprobe(device_t dev); 309 static int fbattach(device_t dev); 310 311 static device_method_t fb_methods[] = { 312 DEVMETHOD(device_probe, fbprobe), 313 DEVMETHOD(device_attach, fbattach), 314 315 DEVMETHOD(bus_print_child, bus_generic_print_child), 316 { 0, 0 } 317 }; 318 319 static driver_t fb_driver = { 320 FB_DRIVER_NAME, 321 fb_methods, 322 0, 323 }; 324 325 static int 326 fbprobe(device_t dev) 327 { 328 int unit; 329 330 unit = device_get_unit(dev); 331 if (unit >= adapters) 332 return ENXIO; 333 if (adapter[unit] == NULL) 334 return ENXIO; 335 336 device_set_desc(dev, "generic frame buffer"); 337 return 0; 338 } 339 340 static int 341 fbattach(device_t dev) 342 { 343 printf("fbattach: about to attach children\n"); 344 bus_generic_attach(dev); 345 return 0; 346 } 347 348 #endif /* experimental */ 349 350 #define FB_UNIT(dev) minor(dev) 351 #define FB_MKMINOR(unit) (u) 352 353 static d_open_t fbopen; 354 static d_close_t fbclose; 355 static d_read_t fbread; 356 static d_write_t fbwrite; 357 static d_ioctl_t fbioctl; 358 static d_mmap_t fbmmap; 359 360 #define CDEV_MAJOR 123 /* XXX */ 361 362 static struct cdevsw fb_cdevsw = { 363 /* open */ fbopen, 364 /* close */ fbclose, 365 /* read */ fbread, 366 /* write */ fbwrite, 367 /* ioctl */ fbioctl, 368 /* stop */ nostop, 369 /* reset */ noreset, 370 /* devtotty */ nodevtotty, 371 /* poll */ nopoll, 372 /* mmap */ fbmmap, 373 /* strategy */ nostrategy, 374 /* name */ FB_DRIVER_NAME, 375 /* parms */ noparms, 376 /* maj */ CDEV_MAJOR, 377 /* dump */ nodump, 378 /* psize */ nopsize, 379 /* flags */ 0, 380 /* maxio */ 0, 381 /* bmaj */ -1 382 }; 383 384 static void 385 vfbattach(void *arg) 386 { 387 static int fb_devsw_installed = FALSE; 388 389 if (!fb_devsw_installed) { 390 cdevsw_add(&fb_cdevsw); 391 fb_devsw_installed = TRUE; 392 } 393 } 394 395 PSEUDO_SET(vfbattach, fb); 396 397 int 398 fb_attach(dev_t dev, video_adapter_t *adp, struct cdevsw *cdevsw) 399 { 400 int s; 401 402 if (adp->va_index >= adapters) 403 return EINVAL; 404 if (adapter[adp->va_index] != adp) 405 return EINVAL; 406 407 s = spltty(); 408 adp->va_minor = minor(dev); 409 vidcdevsw[adp->va_index] = cdevsw; 410 splx(s); 411 412 printf("fb%d at %s%d\n", adp->va_index, adp->va_name, adp->va_unit); 413 return 0; 414 } 415 416 int 417 fb_detach(dev_t dev, video_adapter_t *adp, struct cdevsw *cdevsw) 418 { 419 int s; 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] != cdevsw) 426 return EINVAL; 427 428 s = spltty(); 429 vidcdevsw[adp->va_index] = NULL; 430 splx(s); 431 return 0; 432 } 433 434 static int 435 fbopen(dev_t dev, int flag, int mode, struct proc *p) 436 { 437 int unit; 438 439 unit = FB_UNIT(dev); 440 if (unit >= adapters) 441 return ENXIO; 442 if (vidcdevsw[unit] == NULL) 443 return ENXIO; 444 return (*vidcdevsw[unit]->d_open)(makedev(0, adapter[unit]->va_minor), 445 flag, mode, p); 446 } 447 448 static int 449 fbclose(dev_t dev, int flag, int mode, struct proc *p) 450 { 451 int unit; 452 453 unit = FB_UNIT(dev); 454 if (vidcdevsw[unit] == NULL) 455 return ENXIO; 456 return (*vidcdevsw[unit]->d_close)(makedev(0, adapter[unit]->va_minor), 457 flag, mode, p); 458 } 459 460 static int 461 fbread(dev_t dev, struct uio *uio, int flag) 462 { 463 int unit; 464 465 unit = FB_UNIT(dev); 466 if (vidcdevsw[unit] == NULL) 467 return ENXIO; 468 return (*vidcdevsw[unit]->d_read)(makedev(0, adapter[unit]->va_minor), 469 uio, flag); 470 } 471 472 static int 473 fbwrite(dev_t dev, struct uio *uio, int flag) 474 { 475 int unit; 476 477 unit = FB_UNIT(dev); 478 if (vidcdevsw[unit] == NULL) 479 return ENXIO; 480 return (*vidcdevsw[unit]->d_write)(makedev(0, adapter[unit]->va_minor), 481 uio, flag); 482 } 483 484 static int 485 fbioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p) 486 { 487 int unit; 488 489 unit = FB_UNIT(dev); 490 if (vidcdevsw[unit] == NULL) 491 return ENXIO; 492 return (*vidcdevsw[unit]->d_ioctl)(makedev(0, adapter[unit]->va_minor), 493 cmd, arg, flag, p); 494 } 495 496 static int 497 fbmmap(dev_t dev, vm_offset_t offset, int nprot) 498 { 499 int unit; 500 501 unit = FB_UNIT(dev); 502 if (vidcdevsw[unit] == NULL) 503 return ENXIO; 504 return (*vidcdevsw[unit]->d_mmap)(makedev(0, adapter[unit]->va_minor), 505 offset, nprot); 506 } 507 508 #if experimental 509 DEV_DRIVER_MODULE(fb, ???, fb_driver, fb_devclass, fb_cdevsw, 0, 0); 510 #endif 511 512 /* 513 * Generic frame buffer cdev driver functions 514 * Frame buffer subdrivers may call these functions to implement common 515 * driver functions. 516 */ 517 518 int genfbopen(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 519 struct proc *p) 520 { 521 int s; 522 523 s = spltty(); 524 if (!(sc->gfb_flags & FB_OPEN)) 525 sc->gfb_flags |= FB_OPEN; 526 splx(s); 527 return 0; 528 } 529 530 int genfbclose(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 531 struct proc *p) 532 { 533 int s; 534 535 s = spltty(); 536 sc->gfb_flags &= ~FB_OPEN; 537 splx(s); 538 return 0; 539 } 540 541 int genfbread(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 542 int flag) 543 { 544 int size; 545 int offset; 546 int error; 547 int len; 548 549 error = 0; 550 size = adp->va_buffer_size/adp->va_info.vi_planes; 551 while (uio->uio_resid > 0) { 552 if (uio->uio_offset >= size) 553 break; 554 offset = uio->uio_offset%adp->va_window_size; 555 len = imin(uio->uio_resid, size - uio->uio_offset); 556 len = imin(len, adp->va_window_size - offset); 557 if (len <= 0) 558 break; 559 (*vidsw[adp->va_index]->set_win_org)(adp, uio->uio_offset); 560 error = uiomove((caddr_t)(adp->va_window + offset), len, uio); 561 if (error) 562 break; 563 } 564 return error; 565 } 566 567 int genfbwrite(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 568 int flag) 569 { 570 return ENODEV; 571 } 572 573 int genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, u_long cmd, 574 caddr_t arg, int flag, struct proc *p) 575 { 576 int error; 577 578 if (adp == NULL) /* XXX */ 579 return ENXIO; 580 error = (*vidsw[adp->va_index]->ioctl)(adp, cmd, arg); 581 if (error == ENOIOCTL) 582 error = ENODEV; 583 return error; 584 } 585 586 int genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, vm_offset_t offset, 587 int prot) 588 { 589 return (*vidsw[adp->va_index]->mmap)(adp, offset, prot); 590 } 591 592 #endif /* FB_INSTALL_CDEV */ 593 594 static char 595 *adapter_name(int type) 596 { 597 static struct { 598 int type; 599 char *name; 600 } names[] = { 601 { KD_MONO, "MDA" }, 602 { KD_HERCULES, "Hercules" }, 603 { KD_CGA, "CGA" }, 604 { KD_EGA, "EGA" }, 605 { KD_VGA, "VGA" }, 606 { KD_PC98, "PC-98x1" }, 607 { KD_TGA, "TGA" }, 608 { -1, "Unknown" }, 609 }; 610 int i; 611 612 for (i = 0; names[i].type != -1; ++i) 613 if (names[i].type == type) 614 break; 615 return names[i].name; 616 } 617 618 /* 619 * Generic low-level frame buffer functions 620 * The low-level functions in the frame buffer subdriver may use these 621 * functions. 622 */ 623 624 void 625 fb_dump_adp_info(char *driver, video_adapter_t *adp, int level) 626 { 627 if (level <= 0) 628 return; 629 630 printf("%s%d: %s%d, %s, type:%s (%d), flags:0x%x\n", 631 FB_DRIVER_NAME, adp->va_index, driver, adp->va_unit, adp->va_name, 632 adapter_name(adp->va_type), adp->va_type, adp->va_flags); 633 printf("%s%d: port:0x%x-0x%x, crtc:0x%x, mem:0x%x 0x%x\n", 634 FB_DRIVER_NAME, adp->va_index, 635 adp->va_io_base, adp->va_io_base + adp->va_io_size - 1, 636 adp->va_crtc_addr, adp->va_mem_base, adp->va_mem_size); 637 printf("%s%d: init mode:%d, bios mode:%d, current mode:%d\n", 638 FB_DRIVER_NAME, adp->va_index, 639 adp->va_initial_mode, adp->va_initial_bios_mode, adp->va_mode); 640 printf("%s%d: window:%p size:%dk gran:%dk, buf:%p size:%dk\n", 641 FB_DRIVER_NAME, adp->va_index, 642 (void *)adp->va_window, (int)adp->va_window_size/1024, 643 (int)adp->va_window_gran/1024, (void *)adp->va_buffer, 644 (int)adp->va_buffer_size/1024); 645 } 646 647 void 648 fb_dump_mode_info(char *driver, video_adapter_t *adp, video_info_t *info, 649 int level) 650 { 651 if (level <= 0) 652 return; 653 654 printf("%s%d: %s, mode:%d, flags:0x%x ", 655 driver, adp->va_unit, adp->va_name, info->vi_mode, info->vi_flags); 656 if (info->vi_flags & V_INFO_GRAPHICS) 657 printf("G %dx%dx%d, %d plane(s), font:%dx%d, ", 658 info->vi_width, info->vi_height, 659 info->vi_depth, info->vi_planes, 660 info->vi_cwidth, info->vi_cheight); 661 else 662 printf("T %dx%d, font:%dx%d, ", 663 info->vi_width, info->vi_height, 664 info->vi_cwidth, info->vi_cheight); 665 printf("win:0x%x\n", info->vi_window); 666 } 667 668 int 669 fb_type(int adp_type) 670 { 671 static struct { 672 int fb_type; 673 int va_type; 674 } types[] = { 675 { FBTYPE_MDA, KD_MONO }, 676 { FBTYPE_HERCULES, KD_HERCULES }, 677 { FBTYPE_CGA, KD_CGA }, 678 { FBTYPE_EGA, KD_EGA }, 679 { FBTYPE_VGA, KD_VGA }, 680 { FBTYPE_PC98, KD_PC98 }, 681 { FBTYPE_TGA, KD_TGA }, 682 }; 683 int i; 684 685 for (i = 0; i < sizeof(types)/sizeof(types[0]); ++i) { 686 if (types[i].va_type == adp_type) 687 return types[i].fb_type; 688 } 689 return -1; 690 } 691 692 int 693 fb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 694 { 695 int error; 696 int s; 697 698 /* assert(adp != NULL) */ 699 700 error = 0; 701 s = spltty(); 702 703 switch (cmd) { 704 705 case FBIO_ADAPTER: /* get video adapter index */ 706 *(int *)arg = adp->va_index; 707 break; 708 709 case FBIO_ADPTYPE: /* get video adapter type */ 710 *(int *)arg = adp->va_type; 711 break; 712 713 case FBIO_ADPINFO: /* get video adapter info */ 714 ((video_adapter_info_t *)arg)->va_index = adp->va_index; 715 ((video_adapter_info_t *)arg)->va_type = adp->va_type; 716 bcopy(adp->va_name, ((video_adapter_info_t *)arg)->va_name, 717 imin(strlen(adp->va_name) + 1, 718 sizeof(((video_adapter_info_t *)arg)->va_name))); 719 ((video_adapter_info_t *)arg)->va_unit = adp->va_unit; 720 ((video_adapter_info_t *)arg)->va_flags = adp->va_flags; 721 ((video_adapter_info_t *)arg)->va_io_base = adp->va_io_base; 722 ((video_adapter_info_t *)arg)->va_io_size = adp->va_io_size; 723 ((video_adapter_info_t *)arg)->va_crtc_addr = adp->va_crtc_addr; 724 ((video_adapter_info_t *)arg)->va_mem_base = adp->va_mem_base; 725 ((video_adapter_info_t *)arg)->va_mem_size = adp->va_mem_size; 726 ((video_adapter_info_t *)arg)->va_window 727 = vtophys(adp->va_window); 728 ((video_adapter_info_t *)arg)->va_window_size 729 = adp->va_window_size; 730 ((video_adapter_info_t *)arg)->va_window_gran 731 = adp->va_window_gran; 732 ((video_adapter_info_t *)arg)->va_window_orig 733 = adp->va_window_orig; 734 ((video_adapter_info_t *)arg)->va_unused0 735 = (adp->va_buffer) ? vtophys(adp->va_buffer) : 0; 736 ((video_adapter_info_t *)arg)->va_buffer_size 737 = adp->va_buffer_size; 738 ((video_adapter_info_t *)arg)->va_mode = adp->va_mode; 739 ((video_adapter_info_t *)arg)->va_initial_mode 740 = adp->va_initial_mode; 741 ((video_adapter_info_t *)arg)->va_initial_bios_mode 742 = adp->va_initial_bios_mode; 743 ((video_adapter_info_t *)arg)->va_line_width 744 = adp->va_line_width; 745 ((video_adapter_info_t *)arg)->va_disp_start.x 746 = adp->va_disp_start.x; 747 ((video_adapter_info_t *)arg)->va_disp_start.y 748 = adp->va_disp_start.y; 749 break; 750 751 case FBIO_MODEINFO: /* get mode information */ 752 error = (*vidsw[adp->va_index]->get_info)(adp, 753 ((video_info_t *)arg)->vi_mode, 754 (video_info_t *)arg); 755 if (error) 756 error = ENODEV; 757 break; 758 759 case FBIO_FINDMODE: /* find a matching video mode */ 760 error = (*vidsw[adp->va_index]->query_mode)(adp, 761 (video_info_t *)arg); 762 if (error < 0) { 763 error = EINVAL; 764 } else { 765 error = (*vidsw[adp->va_index]->get_info)(adp, 766 error, (video_info_t *)arg); 767 if (error) 768 error = ENODEV; /* shouldn't happen */ 769 } 770 break; 771 772 case FBIO_GETMODE: /* get video mode */ 773 *(int *)arg = adp->va_mode; 774 break; 775 776 case FBIO_SETMODE: /* set video mode */ 777 error = (*vidsw[adp->va_index]->set_mode)(adp, *(int *)arg); 778 if (error) 779 error = ENODEV; /* EINVAL? */ 780 break; 781 782 case FBIO_GETWINORG: /* get frame buffer window origin */ 783 *(u_int *)arg = adp->va_window_orig; 784 break; 785 786 case FBIO_GETDISPSTART: /* get display start address */ 787 ((video_display_start_t *)arg)->x = adp->va_disp_start.x; 788 ((video_display_start_t *)arg)->y = adp->va_disp_start.y; 789 break; 790 791 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 792 *(u_int *)arg = adp->va_line_width; 793 break; 794 795 case FBIO_GETPALETTE: /* get color palette */ 796 case FBIO_SETPALETTE: /* set color palette */ 797 /* XXX */ 798 799 case FBIOPUTCMAP: 800 case FBIOGETCMAP: 801 /* XXX */ 802 803 case FBIO_SETWINORG: /* set frame buffer window origin */ 804 case FBIO_SETDISPSTART: /* set display start address */ 805 case FBIO_SETLINEWIDTH: /* set scan line width in pixel */ 806 807 case FBIOGTYPE: 808 case FBIOGATTR: 809 case FBIOSVIDEO: 810 case FBIOGVIDEO: 811 case FBIOSCURSOR: 812 case FBIOGCURSOR: 813 case FBIOSCURPOS: 814 case FBIOGCURPOS: 815 case FBIOGCURMAX: 816 817 default: 818 error = ENODEV; 819 break; 820 } 821 822 splx(s); 823 return error; 824 } 825