ugen.c revision 1.31
1 /* $NetBSD: ugen.c,v 1.31 1999/12/18 23:22:54 augustss Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/ugen.c,v 1.26 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (augustss (at) carlstedt.se) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/malloc.h> 46 #if defined(__NetBSD__) || defined(__OpenBSD__) 47 #include <sys/device.h> 48 #include <sys/ioctl.h> 49 #elif defined(__FreeBSD__) 50 #include <sys/module.h> 51 #include <sys/bus.h> 52 #include <sys/ioccom.h> 53 #include <sys/conf.h> 54 #include <sys/fcntl.h> 55 #include <sys/filio.h> 56 #endif 57 #include <sys/conf.h> 58 #include <sys/tty.h> 59 #include <sys/file.h> 60 #include <sys/select.h> 61 #include <sys/proc.h> 62 #include <sys/vnode.h> 63 #include <sys/poll.h> 64 65 #include <dev/usb/usb.h> 66 #include <dev/usb/usbdi.h> 67 #include <dev/usb/usbdi_util.h> 68 69 #ifdef UGEN_DEBUG 70 #define DPRINTF(x) if (ugendebug) logprintf x 71 #define DPRINTFN(n,x) if (ugendebug>(n)) logprintf x 72 int ugendebug = 0; 73 #else 74 #define DPRINTF(x) 75 #define DPRINTFN(n,x) 76 #endif 77 78 struct ugen_endpoint { 79 struct ugen_softc *sc; 80 usb_endpoint_descriptor_t *edesc; 81 usbd_interface_handle iface; 82 int state; 83 #define UGEN_ASLP 0x02 /* waiting for data */ 84 #define UGEN_SHORT_OK 0x04 /* short xfers are OK */ 85 usbd_pipe_handle pipeh; 86 struct clist q; 87 struct selinfo rsel; 88 void *ibuf; 89 u_int32_t timeout; 90 }; 91 92 #define UGEN_CHUNK 128 /* chunk size for read */ 93 #define UGEN_IBSIZE 1020 /* buffer size */ 94 #define UGEN_BBSIZE 1024 95 96 struct ugen_softc { 97 USBBASEDEVICE sc_dev; /* base device */ 98 usbd_device_handle sc_udev; 99 100 char sc_is_open[USB_MAX_ENDPOINTS]; 101 struct ugen_endpoint sc_endpoints[USB_MAX_ENDPOINTS][2]; 102 #define OUT 0 103 #define IN 1 104 105 int sc_refcnt; 106 u_char sc_dying; 107 }; 108 109 #if defined(__NetBSD__) || defined(__OpenBSD__) 110 cdev_decl(ugen); 111 #elif defined(__FreeBSD__) 112 d_open_t ugenopen; 113 d_close_t ugenclose; 114 d_read_t ugenread; 115 d_write_t ugenwrite; 116 d_ioctl_t ugenioctl; 117 d_poll_t ugenpoll; 118 119 #define UGEN_CDEV_MAJOR 114 120 121 static struct cdevsw ugen_cdevsw = { 122 /* open */ ugenopen, 123 /* close */ ugenclose, 124 /* read */ ugenread, 125 /* write */ ugenwrite, 126 /* ioctl */ ugenioctl, 127 /* poll */ ugenpoll, 128 /* mmap */ nommap, 129 /* strategy */ nostrategy, 130 /* name */ "ugen", 131 /* maj */ UGEN_CDEV_MAJOR, 132 /* dump */ nodump, 133 /* psize */ nopsize, 134 /* flags */ 0, 135 /* bmaj */ -1 136 }; 137 #endif 138 139 static void ugenintr __P((usbd_xfer_handle xfer, usbd_private_handle addr, 140 usbd_status status)); 141 142 static int ugen_do_read __P((struct ugen_softc *, int, struct uio *, int)); 143 static int ugen_do_write __P((struct ugen_softc *, int, struct uio *, int)); 144 static int ugen_do_ioctl __P((struct ugen_softc *, int, u_long, 145 caddr_t, int, struct proc *)); 146 static int ugen_set_config __P((struct ugen_softc *sc, int configno)); 147 static usb_config_descriptor_t *ugen_get_cdesc __P((struct ugen_softc *sc, 148 int index, int *lenp)); 149 static usbd_status ugen_set_interface __P((struct ugen_softc *, int, int)); 150 static int ugen_get_alt_index __P((struct ugen_softc *sc, int ifaceidx)); 151 152 #define UGENUNIT(n) ((minor(n) >> 4) & 0xf) 153 #define UGENENDPOINT(n) (minor(n) & 0xf) 154 #define UGENDEV(u, e) (makedev(0, ((u) << 4) | (e))) 155 156 USB_DECLARE_DRIVER(ugen); 157 158 USB_MATCH(ugen) 159 { 160 USB_MATCH_START(ugen, uaa); 161 162 if (uaa->usegeneric) 163 return (UMATCH_GENERIC); 164 else 165 return (UMATCH_NONE); 166 } 167 168 USB_ATTACH(ugen) 169 { 170 USB_ATTACH_START(ugen, sc, uaa); 171 usbd_device_handle udev; 172 char devinfo[1024]; 173 usbd_status err; 174 int conf; 175 176 usbd_devinfo(uaa->device, 0, devinfo); 177 USB_ATTACH_SETUP; 178 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 179 180 sc->sc_udev = udev = uaa->device; 181 182 /* First set configuration index 0, the default one for ugen. */ 183 err = usbd_set_config_index(udev, 0, 0); 184 if (err) { 185 printf("%s: setting configuration index 0 failed\n", 186 USBDEVNAME(sc->sc_dev)); 187 sc->sc_dying = 1; 188 USB_ATTACH_ERROR_RETURN; 189 } 190 conf = usbd_get_config_descriptor(udev)->bConfigurationValue; 191 192 /* Set up all the local state for this configuration. */ 193 err = ugen_set_config(sc, conf); 194 if (err) { 195 printf("%s: setting configuration %d failed\n", 196 USBDEVNAME(sc->sc_dev), conf); 197 sc->sc_dying = 1; 198 USB_ATTACH_ERROR_RETURN; 199 } 200 201 #ifdef __FreeBSD__ 202 { 203 static int global_init_done = 0; 204 if (!global_init_done) { 205 cdevsw_add(&ugen_cdevsw); 206 global_init_done = 1; 207 } 208 } 209 #endif 210 211 USB_ATTACH_SUCCESS_RETURN; 212 } 213 214 static int 215 ugen_set_config(sc, configno) 216 struct ugen_softc *sc; 217 int configno; 218 { 219 usbd_device_handle dev = sc->sc_udev; 220 usbd_interface_handle iface; 221 usb_endpoint_descriptor_t *ed; 222 struct ugen_endpoint *sce; 223 u_int8_t niface, nendpt; 224 int ifaceno, endptno, endpt; 225 usbd_status err; 226 int dir; 227 228 DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n", 229 USBDEVNAME(sc->sc_dev), configno, sc)); 230 /* Avoid setting the current value. */ 231 if (usbd_get_config_descriptor(dev)->bConfigurationValue != configno) { 232 err = usbd_set_config_no(dev, configno, 0); 233 if (err) 234 return (err); 235 } 236 237 err = usbd_interface_count(dev, &niface); 238 if (err) 239 return (err); 240 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints); 241 for (ifaceno = 0; ifaceno < niface; ifaceno++) { 242 DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno)); 243 err = usbd_device2interface_handle(dev, ifaceno, &iface); 244 if (err) 245 return (err); 246 err = usbd_endpoint_count(iface, &nendpt); 247 if (err) 248 return (err); 249 for (endptno = 0; endptno < nendpt; endptno++) { 250 ed = usbd_interface2endpoint_descriptor(iface,endptno); 251 endpt = ed->bEndpointAddress; 252 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 253 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 254 DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x" 255 "(%d,%d), sce=%p\n", 256 endptno, endpt, UE_GET_ADDR(endpt), 257 UE_GET_DIR(endpt), sce)); 258 sce->sc = sc; 259 sce->edesc = ed; 260 sce->iface = iface; 261 } 262 } 263 return (USBD_NORMAL_COMPLETION); 264 } 265 266 int 267 ugenopen(dev, flag, mode, p) 268 dev_t dev; 269 int flag; 270 int mode; 271 struct proc *p; 272 { 273 struct ugen_softc *sc; 274 int unit = UGENUNIT(dev); 275 int endpt = UGENENDPOINT(dev); 276 usb_endpoint_descriptor_t *edesc; 277 struct ugen_endpoint *sce; 278 int dir, isize; 279 usbd_status err; 280 281 USB_GET_SC_OPEN(ugen, unit, sc); 282 283 DPRINTFN(5, ("ugenopen: flag=%d, mode=%d, unit=%d endpt=%d\n", 284 flag, mode, unit, endpt)); 285 286 if (sc == NULL || sc->sc_dying) 287 return (ENXIO); 288 289 if (sc->sc_is_open[endpt]) 290 return (EBUSY); 291 292 if (endpt == USB_CONTROL_ENDPOINT) { 293 sc->sc_is_open[USB_CONTROL_ENDPOINT] = 1; 294 return (0); 295 } 296 /* Make sure there are pipes for all directions. */ 297 for (dir = OUT; dir <= IN; dir++) { 298 if (flag & (dir == OUT ? FWRITE : FREAD)) { 299 sce = &sc->sc_endpoints[endpt][dir]; 300 if (sce == 0 || sce->edesc == 0) 301 return (ENXIO); 302 } 303 } 304 305 /* Actually open the pipes. */ 306 /* XXX Should back out properly if it fails. */ 307 for (dir = OUT; dir <= IN; dir++) { 308 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 309 continue; 310 sce = &sc->sc_endpoints[endpt][dir]; 311 sce->state = 0; 312 sce->timeout = USBD_NO_TIMEOUT; 313 DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n", 314 sc, endpt, dir, sce)); 315 edesc = sce->edesc; 316 switch (edesc->bmAttributes & UE_XFERTYPE) { 317 case UE_INTERRUPT: 318 isize = UGETW(edesc->wMaxPacketSize); 319 if (isize == 0) /* shouldn't happen */ 320 return (EINVAL); 321 sce->ibuf = malloc(isize, M_USBDEV, M_WAITOK); 322 DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n", 323 endpt, isize)); 324 if (clalloc(&sce->q, UGEN_IBSIZE, 0) == -1) 325 return (ENOMEM); 326 err = usbd_open_pipe_intr(sce->iface, 327 edesc->bEndpointAddress, 328 USBD_SHORT_XFER_OK, &sce->pipeh, sce, 329 sce->ibuf, isize, ugenintr); 330 if (err) { 331 free(sce->ibuf, M_USBDEV); 332 clfree(&sce->q); 333 return (EIO); 334 } 335 DPRINTFN(5, ("ugenopen: interrupt open done\n")); 336 break; 337 case UE_BULK: 338 err = usbd_open_pipe(sce->iface, 339 edesc->bEndpointAddress, 0, &sce->pipeh); 340 if (err) 341 return (EIO); 342 break; 343 case UE_CONTROL: 344 case UE_ISOCHRONOUS: 345 return (EINVAL); 346 } 347 } 348 sc->sc_is_open[endpt] = 1; 349 return (0); 350 } 351 352 int 353 ugenclose(dev, flag, mode, p) 354 dev_t dev; 355 int flag; 356 int mode; 357 struct proc *p; 358 { 359 int endpt = UGENENDPOINT(dev); 360 struct ugen_softc *sc; 361 struct ugen_endpoint *sce; 362 int dir; 363 364 USB_GET_SC(ugen, UGENUNIT(dev), sc); 365 366 DPRINTFN(5, ("ugenclose: flag=%d, mode=%d, unit=%d, endpt=%d\n", 367 flag, mode, UGENUNIT(dev), endpt)); 368 369 #ifdef DIAGNOSTIC 370 if (!sc->sc_is_open[endpt]) { 371 printf("ugenclose: not open\n"); 372 return (EINVAL); 373 } 374 #endif 375 376 if (endpt == USB_CONTROL_ENDPOINT) { 377 DPRINTFN(5, ("ugenclose: close control\n")); 378 sc->sc_is_open[endpt] = 0; 379 return (0); 380 } 381 382 for (dir = OUT; dir <= IN; dir++) { 383 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 384 continue; 385 sce = &sc->sc_endpoints[endpt][dir]; 386 if (sce == NULL || sce->pipeh == NULL) 387 continue; 388 DPRINTFN(5, ("ugenclose: endpt=%d dir=%d sce=%p\n", 389 endpt, dir, sce)); 390 391 usbd_abort_pipe(sce->pipeh); 392 usbd_close_pipe(sce->pipeh); 393 sce->pipeh = NULL; 394 395 if (sce->ibuf != NULL) { 396 free(sce->ibuf, M_USBDEV); 397 sce->ibuf = NULL; 398 clfree(&sce->q); 399 400 } 401 } 402 sc->sc_is_open[endpt] = 0; 403 404 return (0); 405 } 406 407 static int 408 ugen_do_read(sc, endpt, uio, flag) 409 struct ugen_softc *sc; 410 int endpt; 411 struct uio *uio; 412 int flag; 413 { 414 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 415 u_int32_t n, tn; 416 char buf[UGEN_BBSIZE]; 417 usbd_xfer_handle xfer; 418 usbd_status err; 419 int s; 420 int error = 0; 421 u_char buffer[UGEN_CHUNK]; 422 423 #ifdef __NetBSD__ 424 DPRINTFN(5, ("ugenread: %d:%d\n", sc->sc_dev.dv_unit, endpt)); 425 #endif 426 427 if (sc->sc_dying) 428 return (EIO); 429 430 if (endpt == USB_CONTROL_ENDPOINT) 431 return (ENODEV); 432 433 #ifdef DIAGNOSTIC 434 if (sce->edesc == NULL) { 435 printf("ugenread: no edesc\n"); 436 return (EIO); 437 } 438 if (sce->pipeh == NULL) { 439 printf("ugenread: no pipe\n"); 440 return (EIO); 441 } 442 #endif 443 444 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 445 case UE_INTERRUPT: 446 /* Block until activity occured. */ 447 s = splusb(); 448 while (sce->q.c_cc == 0) { 449 if (flag & IO_NDELAY) { 450 splx(s); 451 return (EWOULDBLOCK); 452 } 453 sce->state |= UGEN_ASLP; 454 DPRINTFN(5, ("ugenread: sleep on %p\n", sc)); 455 error = tsleep(sce, PZERO | PCATCH, "ugenri", 0); 456 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 457 if (sc->sc_dying) 458 error = EIO; 459 if (error) { 460 sce->state &= ~UGEN_ASLP; 461 break; 462 } 463 } 464 splx(s); 465 466 /* Transfer as many chunks as possible. */ 467 while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) { 468 n = min(sce->q.c_cc, uio->uio_resid); 469 if (n > sizeof(buffer)) 470 n = sizeof(buffer); 471 472 /* Remove a small chunk from the input queue. */ 473 q_to_b(&sce->q, buffer, n); 474 DPRINTFN(5, ("ugenread: got %d chars\n", n)); 475 476 /* Copy the data to the user process. */ 477 error = uiomove(buffer, n, uio); 478 if (error) 479 break; 480 } 481 break; 482 case UE_BULK: 483 xfer = usbd_alloc_xfer(sc->sc_udev); 484 if (xfer == 0) 485 return (ENOMEM); 486 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 487 DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n)); 488 tn = n; 489 err = usbd_bulk_transfer( 490 xfer, sce->pipeh, 491 sce->state & UGEN_SHORT_OK ? 492 USBD_SHORT_XFER_OK : 0, 493 sce->timeout, buf, &tn, "ugenrb"); 494 if (err) { 495 if (err == USBD_INTERRUPTED) 496 error = EINTR; 497 else if (err == USBD_TIMEOUT) 498 error = ETIMEDOUT; 499 else 500 error = EIO; 501 break; 502 } 503 DPRINTFN(1, ("ugenread: got %d bytes\n", tn)); 504 error = uiomove(buf, tn, uio); 505 if (error || tn < n) 506 break; 507 } 508 usbd_free_xfer(xfer); 509 break; 510 default: 511 return (ENXIO); 512 } 513 return (error); 514 } 515 516 int 517 ugenread(dev, uio, flag) 518 dev_t dev; 519 struct uio *uio; 520 int flag; 521 { 522 int endpt = UGENENDPOINT(dev); 523 struct ugen_softc *sc; 524 int error; 525 526 USB_GET_SC(ugen, UGENUNIT(dev), sc); 527 528 sc->sc_refcnt++; 529 error = ugen_do_read(sc, endpt, uio, flag); 530 if (--sc->sc_refcnt < 0) 531 usb_detach_wakeup(USBDEV(sc->sc_dev)); 532 return (error); 533 } 534 535 static int 536 ugen_do_write(sc, endpt, uio, flag) 537 struct ugen_softc *sc; 538 int endpt; 539 struct uio *uio; 540 int flag; 541 { 542 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT]; 543 u_int32_t n; 544 int error = 0; 545 char buf[UGEN_BBSIZE]; 546 usbd_xfer_handle xfer; 547 usbd_status err; 548 549 DPRINTFN(5, ("%s: ugenwrite: %d\n", USBDEVNAME(sc->sc_dev), endpt)); 550 551 if (sc->sc_dying) 552 return (EIO); 553 554 if (endpt == USB_CONTROL_ENDPOINT) 555 return (ENODEV); 556 557 #ifdef DIAGNOSTIC 558 if (sce->edesc == NULL) { 559 printf("ugenwrite: no edesc\n"); 560 return (EIO); 561 } 562 if (sce->pipeh == NULL) { 563 printf("ugenwrite: no pipe\n"); 564 return (EIO); 565 } 566 #endif 567 568 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 569 case UE_BULK: 570 xfer = usbd_alloc_xfer(sc->sc_udev); 571 if (xfer == 0) 572 return (EIO); 573 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 574 error = uiomove(buf, n, uio); 575 if (error) 576 break; 577 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 578 err = usbd_bulk_transfer(xfer, sce->pipeh, 0, 579 sce->timeout, buf, &n,"ugenwb"); 580 if (err) { 581 if (err == USBD_INTERRUPTED) 582 error = EINTR; 583 else 584 error = EIO; 585 break; 586 } 587 } 588 usbd_free_xfer(xfer); 589 break; 590 default: 591 return (ENXIO); 592 } 593 return (error); 594 } 595 596 int 597 ugenwrite(dev, uio, flag) 598 dev_t dev; 599 struct uio *uio; 600 int flag; 601 { 602 int endpt = UGENENDPOINT(dev); 603 struct ugen_softc *sc; 604 int error; 605 606 USB_GET_SC(ugen, UGENUNIT(dev), sc); 607 608 sc->sc_refcnt++; 609 error = ugen_do_write(sc, endpt, uio, flag); 610 if (--sc->sc_refcnt < 0) 611 usb_detach_wakeup(USBDEV(sc->sc_dev)); 612 return (error); 613 } 614 615 #if defined(__NetBSD__) || defined(__OpenBSD__) 616 int 617 ugen_activate(self, act) 618 device_ptr_t self; 619 enum devact act; 620 { 621 struct ugen_softc *sc = (struct ugen_softc *)self; 622 623 switch (act) { 624 case DVACT_ACTIVATE: 625 return (EOPNOTSUPP); 626 break; 627 628 case DVACT_DEACTIVATE: 629 sc->sc_dying = 1; 630 break; 631 } 632 return (0); 633 } 634 #endif 635 636 USB_DETACH(ugen) 637 { 638 USB_DETACH_START(ugen, sc); 639 struct ugen_endpoint *sce; 640 int i, dir; 641 int s; 642 #if defined(__NetBSD__) || defined(__OpenBSD__) 643 int maj, mn; 644 645 DPRINTF(("ugen_detach: sc=%p flags=%d\n", sc, flags)); 646 #elif defined(__FreeBSD__) 647 DPRINTF(("ugen_detach: sc=%p\n", sc)); 648 #endif 649 650 sc->sc_dying = 1; 651 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 652 for (i = 0; i < USB_MAX_ENDPOINTS; i++) { 653 for (dir = OUT; dir <= IN; dir++) { 654 sce = &sc->sc_endpoints[i][dir]; 655 if (sce && sce->pipeh) 656 usbd_abort_pipe(sce->pipeh); 657 } 658 } 659 660 s = splusb(); 661 if (--sc->sc_refcnt >= 0) { 662 /* Wake everyone */ 663 for (i = 0; i < USB_MAX_ENDPOINTS; i++) 664 wakeup(&sc->sc_endpoints[i][IN]); 665 /* Wait for processes to go away. */ 666 usb_detach_wait(USBDEV(sc->sc_dev)); 667 } 668 splx(s); 669 670 #if defined(__NetBSD__) || defined(__OpenBSD__) 671 /* locate the major number */ 672 for (maj = 0; maj < nchrdev; maj++) 673 if (cdevsw[maj].d_open == ugenopen) 674 break; 675 676 /* Nuke the vnodes for any open instances (calls close). */ 677 mn = self->dv_unit * USB_MAX_ENDPOINTS; 678 vdevgone(maj, mn, mn + USB_MAX_ENDPOINTS - 1, VCHR); 679 #elif defined(__FreeBSD__) 680 /* XXX not implemented yet */ 681 #endif 682 683 return (0); 684 } 685 686 static void 687 ugenintr(xfer, addr, status) 688 usbd_xfer_handle xfer; 689 usbd_private_handle addr; 690 usbd_status status; 691 { 692 struct ugen_endpoint *sce = addr; 693 /*struct ugen_softc *sc = sce->sc;*/ 694 u_int32_t count; 695 u_char *ibuf; 696 697 if (status == USBD_CANCELLED) 698 return; 699 700 if (status != USBD_NORMAL_COMPLETION) { 701 DPRINTF(("ugenintr: status=%d\n", status)); 702 usbd_clear_endpoint_stall_async(sce->pipeh); 703 return; 704 } 705 706 usbd_get_xfer_status(xfer, 0, 0, &count, 0); 707 ibuf = sce->ibuf; 708 709 DPRINTFN(5, ("ugenintr: xfer=%p status=%d count=%d\n", 710 xfer, status, count)); 711 DPRINTFN(5, (" data = %02x %02x %02x\n", 712 ibuf[0], ibuf[1], ibuf[2])); 713 714 (void)b_to_q(ibuf, count, &sce->q); 715 716 if (sce->state & UGEN_ASLP) { 717 sce->state &= ~UGEN_ASLP; 718 DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); 719 wakeup(sce); 720 } 721 selwakeup(&sce->rsel); 722 } 723 724 static usbd_status 725 ugen_set_interface(sc, ifaceidx, altno) 726 struct ugen_softc *sc; 727 int ifaceidx, altno; 728 { 729 usbd_interface_handle iface; 730 usb_endpoint_descriptor_t *ed; 731 usbd_status err; 732 struct ugen_endpoint *sce; 733 u_int8_t niface, nendpt, endptno, endpt; 734 int dir; 735 736 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); 737 738 err = usbd_interface_count(sc->sc_udev, &niface); 739 if (err) 740 return (err); 741 if (ifaceidx < 0 || ifaceidx >= niface) 742 return (USBD_INVAL); 743 744 err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 745 if (err) 746 return (err); 747 err = usbd_endpoint_count(iface, &nendpt); 748 if (err) 749 return (err); 750 for (endptno = 0; endptno < nendpt; endptno++) { 751 ed = usbd_interface2endpoint_descriptor(iface,endptno); 752 endpt = ed->bEndpointAddress; 753 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 754 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 755 sce->sc = 0; 756 sce->edesc = 0; 757 sce->iface = 0; 758 } 759 760 /* change setting */ 761 err = usbd_set_interface(iface, altno); 762 if (err) 763 return (err); 764 765 err = usbd_endpoint_count(iface, &nendpt); 766 if (err) 767 return (err); 768 for (endptno = 0; endptno < nendpt; endptno++) { 769 ed = usbd_interface2endpoint_descriptor(iface,endptno); 770 endpt = ed->bEndpointAddress; 771 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 772 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 773 sce->sc = sc; 774 sce->edesc = ed; 775 sce->iface = iface; 776 } 777 return (0); 778 } 779 780 /* Retrieve a complete descriptor for a certain device and index. */ 781 static usb_config_descriptor_t * 782 ugen_get_cdesc(sc, index, lenp) 783 struct ugen_softc *sc; 784 int index; 785 int *lenp; 786 { 787 usb_config_descriptor_t *cdesc, *tdesc, cdescr; 788 int len; 789 usbd_status err; 790 791 if (index == USB_CURRENT_CONFIG_INDEX) { 792 tdesc = usbd_get_config_descriptor(sc->sc_udev); 793 len = UGETW(tdesc->wTotalLength); 794 if (lenp) 795 *lenp = len; 796 cdesc = malloc(len, M_TEMP, M_WAITOK); 797 memcpy(cdesc, tdesc, len); 798 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); 799 } else { 800 err = usbd_get_config_desc(sc->sc_udev, index, &cdescr); 801 if (err) 802 return (0); 803 len = UGETW(cdescr.wTotalLength); 804 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); 805 if (lenp) 806 *lenp = len; 807 cdesc = malloc(len, M_TEMP, M_WAITOK); 808 err = usbd_get_config_desc_full(sc->sc_udev, index, cdesc,len); 809 if (err) { 810 free(cdesc, M_TEMP); 811 return (0); 812 } 813 } 814 return (cdesc); 815 } 816 817 static int 818 ugen_get_alt_index(sc, ifaceidx) 819 struct ugen_softc *sc; 820 int ifaceidx; 821 { 822 usbd_interface_handle iface; 823 usbd_status err; 824 825 err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 826 if (err) 827 return (-1); 828 return (usbd_get_interface_altindex(iface)); 829 } 830 831 static int 832 ugen_do_ioctl(sc, endpt, cmd, addr, flag, p) 833 struct ugen_softc *sc; 834 int endpt; 835 u_long cmd; 836 caddr_t addr; 837 int flag; 838 struct proc *p; 839 { 840 struct ugen_endpoint *sce; 841 usbd_status err; 842 usbd_interface_handle iface; 843 struct usb_config_desc *cd; 844 usb_config_descriptor_t *cdesc; 845 struct usb_interface_desc *id; 846 usb_interface_descriptor_t *idesc; 847 struct usb_endpoint_desc *ed; 848 usb_endpoint_descriptor_t *edesc; 849 struct usb_alt_interface *ai; 850 struct usb_string_desc *si; 851 u_int8_t conf, alt; 852 853 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 854 if (sc->sc_dying) 855 return (EIO); 856 857 switch (cmd) { 858 case FIONBIO: 859 /* All handled in the upper FS layer. */ 860 return (0); 861 case USB_SET_SHORT_XFER: 862 /* This flag only affects read */ 863 if (endpt == USB_CONTROL_ENDPOINT) 864 return (EINVAL); 865 sce = &sc->sc_endpoints[endpt][IN]; 866 if (sce == NULL) 867 return (EINVAL); 868 #ifdef DIAGNOSTIC 869 if (sce->pipeh == NULL) { 870 printf("ugenioctl: USB_SET_SHORT_XFER, no pipe\n"); 871 return (EIO); 872 } 873 #endif 874 if (*(int *)addr) 875 sce->state |= UGEN_SHORT_OK; 876 else 877 sce->state &= ~UGEN_SHORT_OK; 878 return (0); 879 case USB_SET_TIMEOUT: 880 sce = &sc->sc_endpoints[endpt][IN]; 881 if (sce == NULL) 882 return (EINVAL); 883 #ifdef DIAGNOSTIC 884 if (sce->pipeh == NULL) { 885 printf("ugenioctl: USB_SET_TIMEOUT, no pipe\n"); 886 return (EIO); 887 } 888 #endif 889 sce->timeout = *(int *)addr; 890 return (0); 891 default: 892 break; 893 } 894 895 if (endpt != USB_CONTROL_ENDPOINT) 896 return (EINVAL); 897 898 switch (cmd) { 899 #ifdef UGEN_DEBUG 900 case USB_SETDEBUG: 901 ugendebug = *(int *)addr; 902 break; 903 #endif 904 case USB_GET_CONFIG: 905 err = usbd_get_config(sc->sc_udev, &conf); 906 if (err) 907 return (EIO); 908 *(int *)addr = conf; 909 break; 910 case USB_SET_CONFIG: 911 if (!(flag & FWRITE)) 912 return (EPERM); 913 err = ugen_set_config(sc, *(int *)addr); 914 if (err) 915 return (EIO); 916 break; 917 case USB_GET_ALTINTERFACE: 918 ai = (struct usb_alt_interface *)addr; 919 err = usbd_device2interface_handle(sc->sc_udev, 920 ai->interface_index, &iface); 921 if (err) 922 return (EINVAL); 923 idesc = usbd_get_interface_descriptor(iface); 924 if (idesc == NULL) 925 return (EIO); 926 ai->alt_no = idesc->bAlternateSetting; 927 break; 928 case USB_SET_ALTINTERFACE: 929 if (!(flag & FWRITE)) 930 return (EPERM); 931 ai = (struct usb_alt_interface *)addr; 932 err = usbd_device2interface_handle(sc->sc_udev, 933 ai->interface_index, &iface); 934 if (err) 935 return (EINVAL); 936 err = ugen_set_interface(sc, ai->interface_index, ai->alt_no); 937 if (err) 938 return (EINVAL); 939 break; 940 case USB_GET_NO_ALT: 941 ai = (struct usb_alt_interface *)addr; 942 cdesc = ugen_get_cdesc(sc, ai->config_index, 0); 943 if (cdesc == NULL) 944 return (EINVAL); 945 idesc = usbd_find_idesc(cdesc, ai->interface_index, 0); 946 if (idesc == NULL) { 947 free(cdesc, M_TEMP); 948 return (EINVAL); 949 } 950 ai->alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); 951 free(cdesc, M_TEMP); 952 break; 953 case USB_GET_DEVICE_DESC: 954 *(usb_device_descriptor_t *)addr = 955 *usbd_get_device_descriptor(sc->sc_udev); 956 break; 957 case USB_GET_CONFIG_DESC: 958 cd = (struct usb_config_desc *)addr; 959 cdesc = ugen_get_cdesc(sc, cd->config_index, 0); 960 if (cdesc == NULL) 961 return (EINVAL); 962 cd->desc = *cdesc; 963 free(cdesc, M_TEMP); 964 break; 965 case USB_GET_INTERFACE_DESC: 966 id = (struct usb_interface_desc *)addr; 967 cdesc = ugen_get_cdesc(sc, id->config_index, 0); 968 if (cdesc == NULL) 969 return (EINVAL); 970 if (id->config_index == USB_CURRENT_CONFIG_INDEX && 971 id->alt_index == USB_CURRENT_ALT_INDEX) 972 alt = ugen_get_alt_index(sc, id->interface_index); 973 else 974 alt = id->alt_index; 975 idesc = usbd_find_idesc(cdesc, id->interface_index, alt); 976 if (idesc == NULL) { 977 free(cdesc, M_TEMP); 978 return (EINVAL); 979 } 980 id->desc = *idesc; 981 free(cdesc, M_TEMP); 982 break; 983 case USB_GET_ENDPOINT_DESC: 984 ed = (struct usb_endpoint_desc *)addr; 985 cdesc = ugen_get_cdesc(sc, ed->config_index, 0); 986 if (cdesc == NULL) 987 return (EINVAL); 988 if (ed->config_index == USB_CURRENT_CONFIG_INDEX && 989 ed->alt_index == USB_CURRENT_ALT_INDEX) 990 alt = ugen_get_alt_index(sc, ed->interface_index); 991 else 992 alt = ed->alt_index; 993 edesc = usbd_find_edesc(cdesc, ed->interface_index, 994 alt, ed->endpoint_index); 995 if (edesc == NULL) { 996 free(cdesc, M_TEMP); 997 return (EINVAL); 998 } 999 ed->desc = *edesc; 1000 free(cdesc, M_TEMP); 1001 break; 1002 case USB_GET_FULL_DESC: 1003 { 1004 int len; 1005 struct iovec iov; 1006 struct uio uio; 1007 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 1008 int error; 1009 1010 cdesc = ugen_get_cdesc(sc, fd->config_index, &len); 1011 if (len > fd->size) 1012 len = fd->size; 1013 iov.iov_base = (caddr_t)fd->data; 1014 iov.iov_len = len; 1015 uio.uio_iov = &iov; 1016 uio.uio_iovcnt = 1; 1017 uio.uio_resid = len; 1018 uio.uio_offset = 0; 1019 uio.uio_segflg = UIO_USERSPACE; 1020 uio.uio_rw = UIO_READ; 1021 uio.uio_procp = p; 1022 error = uiomove((void *)cdesc, len, &uio); 1023 free(cdesc, M_TEMP); 1024 return (error); 1025 } 1026 case USB_GET_STRING_DESC: 1027 si = (struct usb_string_desc *)addr; 1028 err = usbd_get_string_desc(sc->sc_udev, si->string_index, 1029 si->language_id, &si->desc); 1030 if (err) 1031 return (EINVAL); 1032 break; 1033 case USB_DO_REQUEST: 1034 { 1035 struct usb_ctl_request *ur = (void *)addr; 1036 int len = UGETW(ur->request.wLength); 1037 struct iovec iov; 1038 struct uio uio; 1039 void *ptr = 0; 1040 usbd_status err; 1041 int error = 0; 1042 1043 if (!(flag & FWRITE)) 1044 return (EPERM); 1045 /* Avoid requests that would damage the bus integrity. */ 1046 if ((ur->request.bmRequestType == UT_WRITE_DEVICE && 1047 ur->request.bRequest == UR_SET_ADDRESS) || 1048 (ur->request.bmRequestType == UT_WRITE_DEVICE && 1049 ur->request.bRequest == UR_SET_CONFIG) || 1050 (ur->request.bmRequestType == UT_WRITE_INTERFACE && 1051 ur->request.bRequest == UR_SET_INTERFACE)) 1052 return (EINVAL); 1053 1054 if (len < 0 || len > 32767) 1055 return (EINVAL); 1056 if (len != 0) { 1057 iov.iov_base = (caddr_t)ur->data; 1058 iov.iov_len = len; 1059 uio.uio_iov = &iov; 1060 uio.uio_iovcnt = 1; 1061 uio.uio_resid = len; 1062 uio.uio_offset = 0; 1063 uio.uio_segflg = UIO_USERSPACE; 1064 uio.uio_rw = 1065 ur->request.bmRequestType & UT_READ ? 1066 UIO_READ : UIO_WRITE; 1067 uio.uio_procp = p; 1068 ptr = malloc(len, M_TEMP, M_WAITOK); 1069 if (uio.uio_rw == UIO_WRITE) { 1070 error = uiomove(ptr, len, &uio); 1071 if (error) 1072 goto ret; 1073 } 1074 } 1075 err = usbd_do_request_flags(sc->sc_udev, &ur->request, 1076 ptr, ur->flags, &ur->actlen); 1077 if (err) { 1078 error = EIO; 1079 goto ret; 1080 } 1081 if (len != 0) { 1082 if (uio.uio_rw == UIO_READ) { 1083 error = uiomove(ptr, len, &uio); 1084 if (error) 1085 goto ret; 1086 } 1087 } 1088 ret: 1089 if (ptr) 1090 free(ptr, M_TEMP); 1091 return (error); 1092 } 1093 case USB_GET_DEVICEINFO: 1094 usbd_fill_deviceinfo(sc->sc_udev, 1095 (struct usb_device_info *)addr); 1096 break; 1097 default: 1098 return (EINVAL); 1099 } 1100 return (0); 1101 } 1102 1103 int 1104 ugenioctl(dev, cmd, addr, flag, p) 1105 dev_t dev; 1106 u_long cmd; 1107 caddr_t addr; 1108 int flag; 1109 struct proc *p; 1110 { 1111 int endpt = UGENENDPOINT(dev); 1112 struct ugen_softc *sc; 1113 int error; 1114 1115 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1116 1117 sc->sc_refcnt++; 1118 error = ugen_do_ioctl(sc, endpt, cmd, addr, flag, p); 1119 if (--sc->sc_refcnt < 0) 1120 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1121 return (error); 1122 } 1123 1124 int 1125 ugenpoll(dev, events, p) 1126 dev_t dev; 1127 int events; 1128 struct proc *p; 1129 { 1130 struct ugen_softc *sc; 1131 struct ugen_endpoint *sce; 1132 int revents = 0; 1133 int s; 1134 1135 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1136 1137 if (sc->sc_dying) 1138 return (EIO); 1139 1140 /* XXX always IN */ 1141 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 1142 if (sce == NULL) 1143 return (EINVAL); 1144 #ifdef DIAGNOSTIC 1145 if (!sce->edesc) { 1146 printf("ugenwrite: no edesc\n"); 1147 return (EIO); 1148 } 1149 if (!sce->pipeh) { 1150 printf("ugenpoll: no pipe\n"); 1151 return (EIO); 1152 } 1153 #endif 1154 s = splusb(); 1155 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 1156 case UE_INTERRUPT: 1157 if (events & (POLLIN | POLLRDNORM)) { 1158 if (sce->q.c_cc > 0) 1159 revents |= events & (POLLIN | POLLRDNORM); 1160 else 1161 selrecord(p, &sce->rsel); 1162 } 1163 break; 1164 case UE_BULK: 1165 /* 1166 * We have no easy way of determining if a read will 1167 * yield any data or a write will happen. 1168 * Pretend they will. 1169 */ 1170 revents |= events & 1171 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 1172 break; 1173 default: 1174 break; 1175 } 1176 splx(s); 1177 return (revents); 1178 } 1179 1180 #if defined(__FreeBSD__) 1181 DRIVER_MODULE(ugen, uhub, ugen_driver, ugen_devclass, usbd_driver_load, 0); 1182 #endif 1183
Indexes created Thu Sep 25 16:09:42 GMT 2025