fb.c revision 48104
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 1.5 1999/05/31 11:24:38 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 56static int vid_malloc; 57static int adapters = 1; 58static video_adapter_t *adp_ini; 59static video_adapter_t **adapter = &adp_ini; 60static video_switch_t *vidsw_ini; 61 video_switch_t **vidsw = &vidsw_ini; 62 63#ifdef FB_INSTALL_CDEV 64static struct cdevsw *vidcdevsw_ini; 65static struct cdevsw **vidcdevsw = &vidcdevsw_ini; 66#endif 67 68#define ARRAY_DELTA 4 69 70static int 71vid_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 120static void 121vid_malloc_init(void *arg) 122{ 123 vid_malloc = TRUE; 124} 125 126SYSINIT(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 */ 136void 137vid_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 */ 146int 147vid_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 176int 177vid_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 */ 190video_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 */ 213int 214vid_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 */ 231int 232vid_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 250int 251vid_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 */ 270video_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 */ 279int 280vid_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 306static devclass_t fb_devclass; 307 308static int fbprobe(device_t dev); 309static int fbattach(device_t dev); 310 311static 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 319static driver_t fb_driver = { 320 FB_DRIVER_NAME, 321 fb_methods, 322 0, 323}; 324 325static int 326fbprobe(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 340static int 341fbattach(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 353static d_open_t fbopen; 354static d_close_t fbclose; 355static d_read_t fbread; 356static d_write_t fbwrite; 357static d_ioctl_t fbioctl; 358static d_mmap_t fbmmap; 359 360#define CDEV_MAJOR 123 /* XXX */ 361 362static 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 384static void 385vfbattach(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 395PSEUDO_SET(vfbattach, fb); 396 397int 398fb_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 /* XXX: DEVFS? */ 413 414 printf("fb%d at %s%d\n", adp->va_index, adp->va_name, adp->va_unit); 415 return 0; 416} 417 418int 419fb_detach(dev_t dev, video_adapter_t *adp, struct cdevsw *cdevsw) 420{ 421 int s; 422 423 if (adp->va_index >= adapters) 424 return EINVAL; 425 if (adapter[adp->va_index] != adp) 426 return EINVAL; 427 if (vidcdevsw[adp->va_index] != cdevsw) 428 return EINVAL; 429 430 s = spltty(); 431 vidcdevsw[adp->va_index] = NULL; 432 splx(s); 433 return 0; 434} 435 436static int 437fbopen(dev_t dev, int flag, int mode, struct proc *p) 438{ 439 int unit; 440 441 unit = FB_UNIT(dev); 442 if (unit >= adapters) 443 return ENXIO; 444 if (vidcdevsw[unit] == NULL) 445 return ENXIO; 446 return (*vidcdevsw[unit]->d_open)(makedev(0, adapter[unit]->va_minor), 447 flag, mode, p); 448} 449 450static int 451fbclose(dev_t dev, int flag, int mode, struct proc *p) 452{ 453 int unit; 454 455 unit = FB_UNIT(dev); 456 if (vidcdevsw[unit] == NULL) 457 return ENXIO; 458 return (*vidcdevsw[unit]->d_close)(makedev(0, adapter[unit]->va_minor), 459 flag, mode, p); 460} 461 462static int 463fbread(dev_t dev, struct uio *uio, int flag) 464{ 465 int unit; 466 467 unit = FB_UNIT(dev); 468 if (vidcdevsw[unit] == NULL) 469 return ENXIO; 470 return (*vidcdevsw[unit]->d_read)(makedev(0, adapter[unit]->va_minor), 471 uio, flag); 472} 473 474static int 475fbwrite(dev_t dev, struct uio *uio, int flag) 476{ 477 int unit; 478 479 unit = FB_UNIT(dev); 480 if (vidcdevsw[unit] == NULL) 481 return ENXIO; 482 return (*vidcdevsw[unit]->d_write)(makedev(0, adapter[unit]->va_minor), 483 uio, flag); 484} 485 486static int 487fbioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p) 488{ 489 int unit; 490 491 unit = FB_UNIT(dev); 492 if (vidcdevsw[unit] == NULL) 493 return ENXIO; 494 return (*vidcdevsw[unit]->d_ioctl)(makedev(0, adapter[unit]->va_minor), 495 cmd, arg, flag, p); 496} 497 498static int 499fbmmap(dev_t dev, vm_offset_t offset, int nprot) 500{ 501 int unit; 502 503 unit = FB_UNIT(dev); 504 if (vidcdevsw[unit] == NULL) 505 return ENXIO; 506 return (*vidcdevsw[unit]->d_mmap)(makedev(0, adapter[unit]->va_minor), 507 offset, nprot); 508} 509 510#if experimental 511DEV_DRIVER_MODULE(fb, ???, fb_driver, fb_devclass, 512 CDEV_MAJOR, NOMAJ, fb_cdevsw, 0, 0); 513#endif 514 515/* 516 * Generic frame buffer cdev driver functions 517 * Frame buffer subdrivers may call these functions to implement common 518 * driver functions. 519 */ 520 521int genfbopen(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 522 struct proc *p) 523{ 524 int s; 525 526 s = spltty(); 527 if (!(sc->gfb_flags & FB_OPEN)) 528 sc->gfb_flags |= FB_OPEN; 529 splx(s); 530 return 0; 531} 532 533int genfbclose(genfb_softc_t *sc, video_adapter_t *adp, int flag, int mode, 534 struct proc *p) 535{ 536 int s; 537 538 s = spltty(); 539 sc->gfb_flags &= ~FB_OPEN; 540 splx(s); 541 return 0; 542} 543 544int genfbread(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 545 int flag) 546{ 547 int size; 548 int offset; 549 int error; 550 int len; 551 552 error = 0; 553 size = adp->va_buffer_size/adp->va_info.vi_planes; 554 while (uio->uio_resid > 0) { 555 if (uio->uio_offset >= size) 556 break; 557 offset = uio->uio_offset%adp->va_window_size; 558 len = imin(uio->uio_resid, size - uio->uio_offset); 559 len = imin(len, adp->va_window_size - offset); 560 if (len <= 0) 561 break; 562 (*vidsw[adp->va_index]->set_win_org)(adp, uio->uio_offset); 563 error = uiomove((caddr_t)(adp->va_window + offset), len, uio); 564 if (error) 565 break; 566 } 567 return error; 568} 569 570int genfbwrite(genfb_softc_t *sc, video_adapter_t *adp, struct uio *uio, 571 int flag) 572{ 573 return ENODEV; 574} 575 576int genfbioctl(genfb_softc_t *sc, video_adapter_t *adp, u_long cmd, 577 caddr_t arg, int flag, struct proc *p) 578{ 579 int error; 580 581 if (adp == NULL) /* XXX */ 582 return ENXIO; 583 error = (*vidsw[adp->va_index]->ioctl)(adp, cmd, arg); 584 if (error == ENOIOCTL) 585 error = ENODEV; 586 return error; 587} 588 589int genfbmmap(genfb_softc_t *sc, video_adapter_t *adp, vm_offset_t offset, 590 int prot) 591{ 592 return (*vidsw[adp->va_index]->mmap)(adp, offset, prot); 593} 594 595#endif /* FB_INSTALL_CDEV */ 596 597static char 598*adapter_name(int type) 599{ 600 static struct { 601 int type; 602 char *name; 603 } names[] = { 604 { KD_MONO, "MDA" }, 605 { KD_HERCULES, "Hercules" }, 606 { KD_CGA, "CGA" }, 607 { KD_EGA, "EGA" }, 608 { KD_VGA, "VGA" }, 609 { KD_PC98, "PC-98x1" }, 610 { KD_TGA, "TGA" }, 611 { -1, "Unknown" }, 612 }; 613 int i; 614 615 for (i = 0; names[i].type != -1; ++i) 616 if (names[i].type == type) 617 break; 618 return names[i].name; 619} 620 621/* 622 * Generic low-level frame buffer functions 623 * The low-level functions in the frame buffer subdriver may use these 624 * functions. 625 */ 626 627void 628fb_dump_adp_info(char *driver, video_adapter_t *adp, int level) 629{ 630 if (level <= 0) 631 return; 632 633 printf("%s%d: %s%d, %s, type:%s (%d), flags:0x%x\n", 634 FB_DRIVER_NAME, adp->va_index, driver, adp->va_unit, adp->va_name, 635 adapter_name(adp->va_type), adp->va_type, adp->va_flags); 636 printf("%s%d: port:0x%x-0x%x, crtc:0x%x, mem:0x%x 0x%x\n", 637 FB_DRIVER_NAME, adp->va_index, 638 adp->va_io_base, adp->va_io_base + adp->va_io_size - 1, 639 adp->va_crtc_addr, adp->va_mem_base, adp->va_mem_size); 640 printf("%s%d: init mode:%d, bios mode:%d, current mode:%d\n", 641 FB_DRIVER_NAME, adp->va_index, 642 adp->va_initial_mode, adp->va_initial_bios_mode, adp->va_mode); 643 printf("%s%d: window:%p size:%dk gran:%dk, buf:%p size:%dk\n", 644 FB_DRIVER_NAME, adp->va_index, 645 (void *)adp->va_window, (int)adp->va_window_size/1024, 646 (int)adp->va_window_gran/1024, (void *)adp->va_buffer, 647 (int)adp->va_buffer_size/1024); 648} 649 650void 651fb_dump_mode_info(char *driver, video_adapter_t *adp, video_info_t *info, 652 int level) 653{ 654 if (level <= 0) 655 return; 656 657 printf("%s%d: %s, mode:%d, flags:0x%x ", 658 driver, adp->va_unit, adp->va_name, info->vi_mode, info->vi_flags); 659 if (info->vi_flags & V_INFO_GRAPHICS) 660 printf("G %dx%dx%d, %d plane(s), font:%dx%d, ", 661 info->vi_width, info->vi_height, 662 info->vi_depth, info->vi_planes, 663 info->vi_cwidth, info->vi_cheight); 664 else 665 printf("T %dx%d, font:%dx%d, ", 666 info->vi_width, info->vi_height, 667 info->vi_cwidth, info->vi_cheight); 668 printf("win:0x%x\n", info->vi_window); 669} 670 671int 672fb_type(int adp_type) 673{ 674 static struct { 675 int fb_type; 676 int va_type; 677 } types[] = { 678 { FBTYPE_MDA, KD_MONO }, 679 { FBTYPE_HERCULES, KD_HERCULES }, 680 { FBTYPE_CGA, KD_CGA }, 681 { FBTYPE_EGA, KD_EGA }, 682 { FBTYPE_VGA, KD_VGA }, 683 { FBTYPE_PC98, KD_PC98 }, 684 { FBTYPE_TGA, KD_TGA }, 685 }; 686 int i; 687 688 for (i = 0; i < sizeof(types)/sizeof(types[0]); ++i) { 689 if (types[i].va_type == adp_type) 690 return types[i].fb_type; 691 } 692 return -1; 693} 694 695int 696fb_commonioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 697{ 698 int error; 699 int s; 700 701 /* assert(adp != NULL) */ 702 703 error = 0; 704 s = spltty(); 705 706 switch (cmd) { 707 708 case FBIO_ADAPTER: /* get video adapter index */ 709 *(int *)arg = adp->va_index; 710 break; 711 712 case FBIO_ADPTYPE: /* get video adapter type */ 713 *(int *)arg = adp->va_type; 714 break; 715 716 case FBIO_ADPINFO: /* get video adapter info */ 717 ((video_adapter_info_t *)arg)->va_index = adp->va_index; 718 ((video_adapter_info_t *)arg)->va_type = adp->va_type; 719 bcopy(adp->va_name, ((video_adapter_info_t *)arg)->va_name, 720 imin(strlen(adp->va_name) + 1, 721 sizeof(((video_adapter_info_t *)arg)->va_name))); 722 ((video_adapter_info_t *)arg)->va_unit = adp->va_unit; 723 ((video_adapter_info_t *)arg)->va_flags = adp->va_flags; 724 ((video_adapter_info_t *)arg)->va_io_base = adp->va_io_base; 725 ((video_adapter_info_t *)arg)->va_io_size = adp->va_io_size; 726 ((video_adapter_info_t *)arg)->va_crtc_addr = adp->va_crtc_addr; 727 ((video_adapter_info_t *)arg)->va_mem_base = adp->va_mem_base; 728 ((video_adapter_info_t *)arg)->va_mem_size = adp->va_mem_size; 729 ((video_adapter_info_t *)arg)->va_window 730 = vtophys(adp->va_window); 731 ((video_adapter_info_t *)arg)->va_window_size 732 = adp->va_window_size; 733 ((video_adapter_info_t *)arg)->va_window_gran 734 = adp->va_window_gran; 735 ((video_adapter_info_t *)arg)->va_window_orig 736 = adp->va_window_orig; 737 ((video_adapter_info_t *)arg)->va_unused0 738 = (adp->va_buffer) ? vtophys(adp->va_buffer) : 0; 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 if (error < 0) { 766 error = EINVAL; 767 } else { 768 error = (*vidsw[adp->va_index]->get_info)(adp, 769 error, (video_info_t *)arg); 770 if (error) 771 error = ENODEV; /* shouldn't happen */ 772 } 773 break; 774 775 case FBIO_GETMODE: /* get video mode */ 776 *(int *)arg = adp->va_mode; 777 break; 778 779 case FBIO_SETMODE: /* set video mode */ 780 error = (*vidsw[adp->va_index]->set_mode)(adp, *(int *)arg); 781 if (error) 782 error = ENODEV; /* EINVAL? */ 783 break; 784 785 case FBIO_GETWINORG: /* get frame buffer window origin */ 786 *(u_int *)arg = adp->va_window_orig; 787 break; 788 789 case FBIO_GETDISPSTART: /* get display start address */ 790 ((video_display_start_t *)arg)->x = adp->va_disp_start.x; 791 ((video_display_start_t *)arg)->y = adp->va_disp_start.y; 792 break; 793 794 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */ 795 *(u_int *)arg = adp->va_line_width; 796 break; 797 798 case FBIO_GETPALETTE: /* get color palette */ 799 case FBIO_SETPALETTE: /* set color palette */ 800 /* XXX */ 801 802 case FBIOPUTCMAP: 803 case FBIOGETCMAP: 804 /* XXX */ 805 806 case FBIO_SETWINORG: /* set frame buffer window origin */ 807 case FBIO_SETDISPSTART: /* set display start address */ 808 case FBIO_SETLINEWIDTH: /* set scan line width in pixel */ 809 810 case FBIOGTYPE: 811 case FBIOGATTR: 812 case FBIOSVIDEO: 813 case FBIOGVIDEO: 814 case FBIOSCURSOR: 815 case FBIOGCURSOR: 816 case FBIOSCURPOS: 817 case FBIOGCURPOS: 818 case FBIOGCURMAX: 819 820 default: 821 error = ENODEV; 822 break; 823 } 824 825 splx(s); 826 return error; 827} 828