ugen.c revision 1.18
1 /* $NetBSD: ugen.c,v 1.18 1999/08/23 22:55:14 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (augustss (at) carlstedt.se) at 9 * Carlstedt Research & Technology. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/kernel.h> 44 #include <sys/malloc.h> 45 #if defined(__NetBSD__) || defined(__OpenBSD__) 46 #include <sys/device.h> 47 #include <sys/ioctl.h> 48 #elif defined(__FreeBSD__) 49 #include <sys/module.h> 50 #include <sys/bus.h> 51 #include <sys/ioccom.h> 52 #include <sys/conf.h> 53 #include <sys/fcntl.h> 54 #include <sys/filio.h> 55 #endif 56 #include <sys/conf.h> 57 #include <sys/tty.h> 58 #include <sys/file.h> 59 #include <sys/select.h> 60 #include <sys/proc.h> 61 #include <sys/vnode.h> 62 #include <sys/poll.h> 63 64 #include <dev/usb/usb.h> 65 #include <dev/usb/usbdi.h> 66 #include <dev/usb/usbdi_util.h> 67 68 #ifdef USB_DEBUG 69 #define DPRINTF(x) if (ugendebug) logprintf x 70 #define DPRINTFN(n,x) if (ugendebug>(n)) logprintf x 71 int ugendebug = 0; 72 #else 73 #define DPRINTF(x) 74 #define DPRINTFN(n,x) 75 #endif 76 77 struct ugen_endpoint { 78 struct ugen_softc *sc; 79 usb_endpoint_descriptor_t *edesc; 80 usbd_interface_handle iface; 81 int state; 82 #define UGEN_ASLP 0x02 /* waiting for data */ 83 #define UGEN_SHORT_OK 0x04 /* short xfers are OK */ 84 usbd_pipe_handle pipeh; 85 struct clist q; 86 struct selinfo rsel; 87 void *ibuf; 88 u_int32_t timeout; 89 }; 90 91 #define UGEN_CHUNK 128 /* chunk size for read */ 92 #define UGEN_IBSIZE 1020 /* buffer size */ 93 #define UGEN_BBSIZE 1024 94 95 struct ugen_softc { 96 bdevice sc_dev; /* base device */ 97 struct usbd_device *sc_udev; 98 99 char sc_is_open[USB_MAX_ENDPOINTS]; 100 struct ugen_endpoint sc_endpoints[USB_MAX_ENDPOINTS][2]; 101 #define OUT 0 /* index order is important, from UE_OUT */ 102 #define IN 1 /* from UE_IN */ 103 104 int sc_refcnt; 105 u_char sc_dying; 106 }; 107 108 #if defined(__NetBSD__) || defined(__OpenBSD__) 109 cdev_decl(ugen); 110 #elif defined(__FreeBSD__) 111 d_open_t ugenopen; 112 d_close_t ugenclose; 113 d_read_t ugenread; 114 d_write_t ugenwrite; 115 d_ioctl_t ugenioctl; 116 d_poll_t ugenpoll; 117 118 #define UGEN_CDEV_MAJOR 114 119 120 static struct cdevsw ugen_cdevsw = { 121 /* open */ ugenopen, 122 /* close */ ugenclose, 123 /* read */ ugenread, 124 /* write */ ugenwrite, 125 /* ioctl */ ugenioctl, 126 /* stop */ nostop, 127 /* reset */ noreset, 128 /* devtotty */ nodevtotty, 129 /* poll */ ugenpoll, 130 /* mmap */ nommap, 131 /* strategy */ nostrategy, 132 /* name */ "ugen", 133 /* parms */ noparms, 134 /* maj */ UGEN_CDEV_MAJOR, 135 /* dump */ nodump, 136 /* psize */ nopsize, 137 /* flags */ 0, 138 /* maxio */ 0, 139 /* bmaj */ -1 140 }; 141 #endif 142 143 void ugenintr __P((usbd_request_handle reqh, usbd_private_handle addr, 144 usbd_status status)); 145 146 int ugen_do_read __P((struct ugen_softc *, int, struct uio *, int)); 147 int ugen_do_write __P((struct ugen_softc *, int, struct uio *, int)); 148 int ugen_do_ioctl __P((struct ugen_softc *, int, u_long, 149 caddr_t, int, struct proc *)); 150 int ugen_set_config __P((struct ugen_softc *sc, int configno)); 151 usb_config_descriptor_t *ugen_get_cdesc __P((struct ugen_softc *sc, int index, 152 int *lenp)); 153 usbd_status ugen_set_interface __P((struct ugen_softc *, int, int)); 154 int ugen_get_alt_index __P((struct ugen_softc *sc, int ifaceidx)); 155 156 #define UGENUNIT(n) ((minor(n) >> 4) & 0xf) 157 #define UGENENDPOINT(n) (minor(n) & 0xf) 158 #define UGENDEV(u, e) (makedev(0, ((u) << 4) | (e))) 159 160 USB_DECLARE_DRIVER(ugen); 161 162 USB_MATCH(ugen) 163 { 164 USB_MATCH_START(ugen, uaa); 165 166 if (uaa->usegeneric) 167 return (UMATCH_GENERIC); 168 else 169 return (UMATCH_NONE); 170 } 171 172 USB_ATTACH(ugen) 173 { 174 USB_ATTACH_START(ugen, sc, uaa); 175 char devinfo[1024]; 176 usbd_status r; 177 int conf; 178 179 usbd_devinfo(uaa->device, 0, devinfo); 180 USB_ATTACH_SETUP; 181 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 182 183 sc->sc_udev = uaa->device; 184 conf = 1; /* XXX should not hard code 1 */ 185 r = ugen_set_config(sc, conf); 186 if (r != USBD_NORMAL_COMPLETION) { 187 printf("%s: setting configuration %d failed\n", 188 USBDEVNAME(sc->sc_dev), conf); 189 sc->sc_dying = 1; 190 USB_ATTACH_ERROR_RETURN; 191 } 192 USB_ATTACH_SUCCESS_RETURN; 193 } 194 195 int 196 ugen_set_config(sc, configno) 197 struct ugen_softc *sc; 198 int configno; 199 { 200 usbd_device_handle dev = sc->sc_udev; 201 usbd_interface_handle iface; 202 usb_endpoint_descriptor_t *ed; 203 struct ugen_endpoint *sce; 204 u_int8_t niface, nendpt; 205 int ifaceno, endptno, endpt; 206 usbd_status r; 207 208 DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n", 209 USBDEVNAME(sc->sc_dev), configno, sc)); 210 if (usbd_get_config_descriptor(dev)->bConfigurationValue != configno) { 211 /* Avoid setting the current value. */ 212 r = usbd_set_config_no(dev, configno, 0); 213 if (r != USBD_NORMAL_COMPLETION) 214 return (r); 215 } 216 217 r = usbd_interface_count(dev, &niface); 218 if (r != USBD_NORMAL_COMPLETION) 219 return (r); 220 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints); 221 for (ifaceno = 0; ifaceno < niface; ifaceno++) { 222 DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno)); 223 r = usbd_device2interface_handle(dev, ifaceno, &iface); 224 if (r != USBD_NORMAL_COMPLETION) 225 return (r); 226 r = usbd_endpoint_count(iface, &nendpt); 227 if (r != USBD_NORMAL_COMPLETION) 228 return (r); 229 for (endptno = 0; endptno < nendpt; endptno++) { 230 ed = usbd_interface2endpoint_descriptor(iface,endptno); 231 endpt = ed->bEndpointAddress; 232 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)] 233 [UE_GET_IN(endpt)]; 234 DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x" 235 "(%d,%d), sce=%p\n", 236 endptno, endpt, UE_GET_ADDR(endpt), 237 UE_GET_IN(endpt), sce)); 238 sce->sc = sc; 239 sce->edesc = ed; 240 sce->iface = iface; 241 } 242 } 243 return (USBD_NORMAL_COMPLETION); 244 } 245 246 int 247 ugenopen(dev, flag, mode, p) 248 dev_t dev; 249 int flag; 250 int mode; 251 struct proc *p; 252 { 253 int unit = UGENUNIT(dev); 254 int endpt = UGENENDPOINT(dev); 255 usb_endpoint_descriptor_t *edesc; 256 struct ugen_endpoint *sce; 257 int dir, isize; 258 usbd_status r; 259 260 USB_GET_SC_OPEN(ugen, unit, sc); 261 DPRINTFN(5, ("ugenopen: flag=%d, mode=%d, unit=%d endpt=%d\n", 262 flag, mode, unit, endpt)); 263 264 if (sc->sc_dying) 265 return (ENXIO); 266 267 if (sc->sc_is_open[endpt]) 268 return (EBUSY); 269 270 if (endpt == USB_CONTROL_ENDPOINT) { 271 sc->sc_is_open[USB_CONTROL_ENDPOINT] = 1; 272 return (0); 273 } 274 /* Make sure there are pipes for all directions. */ 275 for (dir = OUT; dir <= IN; dir++) { 276 if (flag & (dir == OUT ? FWRITE : FREAD)) { 277 sce = &sc->sc_endpoints[endpt][dir]; 278 if (sce == 0 || sce->edesc == 0) 279 return (ENXIO); 280 } 281 } 282 283 /* Actually open the pipes. */ 284 /* XXX Should back out properly if it fails. */ 285 for (dir = OUT; dir <= IN; dir++) { 286 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 287 continue; 288 sce = &sc->sc_endpoints[endpt][dir]; 289 sce->state = 0; 290 sce->timeout = USBD_NO_TIMEOUT; 291 DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n", 292 sc, endpt, dir, sce)); 293 edesc = sce->edesc; 294 if (!edesc) 295 return (ENXIO); 296 switch (edesc->bmAttributes & UE_XFERTYPE) { 297 case UE_INTERRUPT: 298 isize = UGETW(edesc->wMaxPacketSize); 299 if (isize == 0) /* shouldn't happen */ 300 return (EINVAL); 301 sce->ibuf = malloc(isize, M_USBDEV, M_WAITOK); 302 DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n", 303 endpt, isize)); 304 #if defined(__NetBSD__) || defined(__OpenBSD__) 305 if (clalloc(&sce->q, UGEN_IBSIZE, 0) == -1) 306 return (ENOMEM); 307 #elif defined(__FreeBSD__) 308 clist_alloc_cblocks(&sce->q, UGEN_IBSIZE, 0); 309 #endif 310 r = usbd_open_pipe_intr(sce->iface, 311 edesc->bEndpointAddress, 312 USBD_SHORT_XFER_OK, &sce->pipeh, sce, 313 sce->ibuf, isize, ugenintr); 314 if (r != USBD_NORMAL_COMPLETION) { 315 free(sce->ibuf, M_USBDEV); 316 #if defined(__NetBSD__) || defined(__OpenBSD__) 317 clfree(&sce->q); 318 #elif defined(__FreeBSD__) 319 clist_free_cblocks(&sce->q); 320 #endif 321 return (EIO); 322 } 323 DPRINTFN(5, ("ugenopen: interrupt open done\n")); 324 break; 325 case UE_BULK: 326 r = usbd_open_pipe(sce->iface, 327 edesc->bEndpointAddress, 0, 328 &sce->pipeh); 329 if (r != USBD_NORMAL_COMPLETION) 330 return (EIO); 331 break; 332 case UE_CONTROL: 333 case UE_ISOCHRONOUS: 334 return (EINVAL); 335 } 336 } 337 sc->sc_is_open[endpt] = 1; 338 return (0); 339 } 340 341 int 342 ugenclose(dev, flag, mode, p) 343 dev_t dev; 344 int flag; 345 int mode; 346 struct proc *p; 347 { 348 USB_GET_SC(ugen, UGENUNIT(dev), sc); 349 int endpt = UGENENDPOINT(dev); 350 struct ugen_endpoint *sce; 351 int dir; 352 353 DPRINTFN(5, ("ugenclose: flag=%d, mode=%d, unit=%d, endpt=%d\n", 354 flag, mode, UGENUNIT(dev), endpt)); 355 356 #ifdef DIAGNOSTIC 357 if (!sc->sc_is_open[endpt]) { 358 printf("ugenclose: not open\n"); 359 return (EINVAL); 360 } 361 #endif 362 363 if (endpt == USB_CONTROL_ENDPOINT) { 364 DPRINTFN(5, ("ugenclose: close control\n")); 365 sc->sc_is_open[endpt] = 0; 366 return (0); 367 } 368 369 for (dir = OUT; dir <= IN; dir++) { 370 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 371 continue; 372 sce = &sc->sc_endpoints[endpt][dir]; 373 if (!sce || !sce->pipeh) 374 continue; 375 DPRINTFN(5, ("ugenclose: endpt=%d dir=%d sce=%p\n", 376 endpt, dir, sce)); 377 378 usbd_abort_pipe(sce->pipeh); 379 usbd_close_pipe(sce->pipeh); 380 sce->pipeh = 0; 381 382 if (sce->ibuf) { 383 free(sce->ibuf, M_USBDEV); 384 sce->ibuf = 0; 385 clfree(&sce->q); 386 } 387 } 388 sc->sc_is_open[endpt] = 0; 389 390 return (0); 391 } 392 393 int 394 ugen_do_read(sc, endpt, uio, flag) 395 struct ugen_softc *sc; 396 int endpt; 397 struct uio *uio; 398 int flag; 399 { 400 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 401 u_int32_t n, tn; 402 char buf[UGEN_BBSIZE]; 403 usbd_request_handle reqh; 404 usbd_status r; 405 int s; 406 int error = 0; 407 u_char buffer[UGEN_CHUNK]; 408 409 DPRINTFN(5, ("ugenread: %d:%d\n", sc->sc_dev.dv_unit, endpt)); 410 if (sc->sc_dying) 411 return (EIO); 412 413 #ifdef DIAGNOSTIC 414 if (!sce->edesc) { 415 printf("ugenread: no edesc\n"); 416 return (EIO); 417 } 418 if (!sce->pipeh) { 419 printf("ugenread: no pipe\n"); 420 return (EIO); 421 } 422 #endif 423 424 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 425 case UE_INTERRUPT: 426 /* Block until activity occured. */ 427 s = splusb(); 428 while (sce->q.c_cc == 0) { 429 if (flag & IO_NDELAY) { 430 splx(s); 431 return (EWOULDBLOCK); 432 } 433 sce->state |= UGEN_ASLP; 434 DPRINTFN(5, ("ugenread: sleep on %p\n", sc)); 435 error = tsleep(sce, PZERO | PCATCH, "ugenri", 0); 436 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 437 if (sc->sc_dying) 438 error = EIO; 439 if (error) { 440 sce->state &= ~UGEN_ASLP; 441 break; 442 } 443 } 444 splx(s); 445 446 /* Transfer as many chunks as possible. */ 447 while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) { 448 n = min(sce->q.c_cc, uio->uio_resid); 449 if (n > sizeof(buffer)) 450 n = sizeof(buffer); 451 452 /* Remove a small chunk from the input queue. */ 453 q_to_b(&sce->q, buffer, n); 454 DPRINTFN(5, ("ugenread: got %d chars\n", n)); 455 456 /* Copy the data to the user process. */ 457 error = uiomove(buffer, n, uio); 458 if (error) 459 break; 460 } 461 break; 462 case UE_BULK: 463 reqh = usbd_alloc_request(); 464 if (reqh == 0) 465 return (ENOMEM); 466 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 467 DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n)); 468 tn = n; 469 r = usbd_bulk_transfer( 470 reqh, sce->pipeh, 471 sce->state & UGEN_SHORT_OK ? 472 USBD_SHORT_XFER_OK : 0, 473 sce->timeout, buf, &tn, "ugenrb"); 474 if (r != USBD_NORMAL_COMPLETION) { 475 if (r == USBD_INTERRUPTED) 476 error = EINTR; 477 else if (r == USBD_TIMEOUT) 478 error = ETIMEDOUT; 479 else 480 error = EIO; 481 break; 482 } 483 DPRINTFN(1, ("ugenread: got %d bytes\n", tn)); 484 error = uiomove(buf, tn, uio); 485 if (error || tn < n) 486 break; 487 } 488 usbd_free_request(reqh); 489 break; 490 default: 491 return (ENXIO); 492 } 493 return (error); 494 } 495 496 int 497 ugenread(dev, uio, flag) 498 dev_t dev; 499 struct uio *uio; 500 int flag; 501 { 502 USB_GET_SC(ugen, UGENUNIT(dev), sc); 503 int endpt = UGENENDPOINT(dev); 504 int error; 505 506 sc->sc_refcnt++; 507 error = ugen_do_read(sc, endpt, uio, flag); 508 if (--sc->sc_refcnt < 0) 509 usb_detach_wakeup(&sc->sc_dev); 510 return (error); 511 } 512 513 int 514 ugen_do_write(sc, endpt, uio, flag) 515 struct ugen_softc *sc; 516 int endpt; 517 struct uio *uio; 518 int flag; 519 { 520 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT]; 521 u_int32_t n; 522 int error = 0; 523 char buf[UGEN_BBSIZE]; 524 usbd_request_handle reqh; 525 usbd_status r; 526 527 if (sc->sc_dying) 528 return (EIO); 529 530 #ifdef DIAGNOSTIC 531 if (!sce->edesc) { 532 printf("ugenwrite: no edesc\n"); 533 return (EIO); 534 } 535 if (!sce->pipeh) { 536 printf("ugenwrite: no pipe\n"); 537 return (EIO); 538 } 539 #endif 540 541 DPRINTF(("ugenwrite\n")); 542 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 543 case UE_BULK: 544 reqh = usbd_alloc_request(); 545 if (reqh == 0) 546 return (EIO); 547 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 548 error = uiomove(buf, n, uio); 549 if (error) 550 break; 551 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 552 r = usbd_bulk_transfer(reqh, sce->pipeh, 0, 553 sce->timeout, buf, &n,"ugenwb"); 554 if (r != USBD_NORMAL_COMPLETION) { 555 if (r == USBD_INTERRUPTED) 556 error = EINTR; 557 else 558 error = EIO; 559 break; 560 } 561 } 562 usbd_free_request(reqh); 563 break; 564 default: 565 return (ENXIO); 566 } 567 return (error); 568 } 569 570 int 571 ugenwrite(dev, uio, flag) 572 dev_t dev; 573 struct uio *uio; 574 int flag; 575 { 576 USB_GET_SC(ugen, UGENUNIT(dev), sc); 577 int endpt = UGENENDPOINT(dev); 578 int error; 579 580 sc->sc_refcnt++; 581 error = ugen_do_write(sc, endpt, uio, flag); 582 if (--sc->sc_refcnt < 0) 583 usb_detach_wakeup(&sc->sc_dev); 584 return (error); 585 } 586 587 int 588 ugen_activate(self, act) 589 struct device *self; 590 enum devact act; 591 { 592 struct ugen_softc *sc = (struct ugen_softc *)self; 593 594 switch (act) { 595 case DVACT_ACTIVATE: 596 return (EOPNOTSUPP); 597 break; 598 599 case DVACT_DEACTIVATE: 600 sc->sc_dying = 1; 601 break; 602 } 603 return (0); 604 } 605 606 int 607 ugen_detach(self, flags) 608 struct device *self; 609 int flags; 610 { 611 struct ugen_softc *sc = (struct ugen_softc *)self; 612 struct ugen_endpoint *sce; 613 int maj, mn; 614 int i, dir; 615 int s; 616 617 DPRINTF(("ugen_detach: sc=%p flags=%d\n", sc, flags)); 618 619 sc->sc_dying = 1; 620 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 621 for (i = 0; i < USB_MAX_ENDPOINTS; i++) { 622 for (dir = OUT; dir <= IN; dir++) { 623 sce = &sc->sc_endpoints[i][dir]; 624 if (sce && sce->pipeh) 625 usbd_abort_pipe(sce->pipeh); 626 } 627 } 628 629 s = splusb(); 630 if (--sc->sc_refcnt >= 0) { 631 /* Wake everyone */ 632 for (i = 0; i < USB_MAX_ENDPOINTS; i++) 633 wakeup(&sc->sc_endpoints[i][IN]); 634 /* Wait for processes to go away. */ 635 usb_detach_wait(&sc->sc_dev); 636 } 637 splx(s); 638 639 /* locate the major number */ 640 for (maj = 0; maj < nchrdev; maj++) 641 if (cdevsw[maj].d_open == ugenopen) 642 break; 643 644 /* Nuke the vnodes for any open instances (calls close). */ 645 mn = self->dv_unit * USB_MAX_ENDPOINTS; 646 vdevgone(maj, mn, mn + USB_MAX_ENDPOINTS - 1, VCHR); 647 648 return (0); 649 } 650 651 void 652 ugenintr(reqh, addr, status) 653 usbd_request_handle reqh; 654 usbd_private_handle addr; 655 usbd_status status; 656 { 657 struct ugen_endpoint *sce = addr; 658 /*struct ugen_softc *sc = sce->sc;*/ 659 u_int32_t count; 660 u_char *ibuf; 661 662 if (status == USBD_CANCELLED) 663 return; 664 665 if (status != USBD_NORMAL_COMPLETION) { 666 DPRINTF(("ugenintr: status=%d\n", status)); 667 usbd_clear_endpoint_stall_async(sce->pipeh); 668 return; 669 } 670 671 usbd_get_request_status(reqh, 0, 0, &count, 0); 672 ibuf = sce->ibuf; 673 674 DPRINTFN(5, ("ugenintr: reqh=%p status=%d count=%d\n", 675 reqh, status, count)); 676 DPRINTFN(5, (" data = %02x %02x %02x\n", 677 ibuf[0], ibuf[1], ibuf[2])); 678 679 (void)b_to_q(ibuf, count, &sce->q); 680 681 if (sce->state & UGEN_ASLP) { 682 sce->state &= ~UGEN_ASLP; 683 DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); 684 wakeup(sce); 685 } 686 selwakeup(&sce->rsel); 687 } 688 689 usbd_status 690 ugen_set_interface(sc, ifaceidx, altno) 691 struct ugen_softc *sc; 692 int ifaceidx, altno; 693 { 694 usbd_interface_handle iface; 695 usb_endpoint_descriptor_t *ed; 696 usbd_status r; 697 struct ugen_endpoint *sce; 698 u_int8_t niface, nendpt, endptno, endpt; 699 700 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); 701 702 r = usbd_interface_count(sc->sc_udev, &niface); 703 if (r != USBD_NORMAL_COMPLETION) 704 return (r); 705 if (ifaceidx < 0 || ifaceidx >= niface) 706 return (USBD_INVAL); 707 708 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 709 if (r != USBD_NORMAL_COMPLETION) 710 return (r); 711 r = usbd_endpoint_count(iface, &nendpt); 712 if (r != USBD_NORMAL_COMPLETION) 713 return (r); 714 for (endptno = 0; endptno < nendpt; endptno++) { 715 ed = usbd_interface2endpoint_descriptor(iface,endptno); 716 endpt = ed->bEndpointAddress; 717 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][UE_GET_IN(endpt)]; 718 sce->sc = 0; 719 sce->edesc = 0; 720 sce->iface = 0; 721 } 722 723 /* change setting */ 724 r = usbd_set_interface(iface, altno); 725 if (r != USBD_NORMAL_COMPLETION) 726 return (r); 727 728 r = usbd_endpoint_count(iface, &nendpt); 729 if (r != USBD_NORMAL_COMPLETION) 730 return (r); 731 for (endptno = 0; endptno < nendpt; endptno++) { 732 ed = usbd_interface2endpoint_descriptor(iface,endptno); 733 endpt = ed->bEndpointAddress; 734 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][UE_GET_IN(endpt)]; 735 sce->sc = sc; 736 sce->edesc = ed; 737 sce->iface = iface; 738 } 739 return (0); 740 } 741 742 /* Retrieve a complete descriptor for a certain device and index. */ 743 usb_config_descriptor_t * 744 ugen_get_cdesc(sc, index, lenp) 745 struct ugen_softc *sc; 746 int index; 747 int *lenp; 748 { 749 usb_config_descriptor_t *cdesc, *tdesc, cdescr; 750 int len; 751 usbd_status r; 752 753 if (index == USB_CURRENT_CONFIG_INDEX) { 754 tdesc = usbd_get_config_descriptor(sc->sc_udev); 755 len = UGETW(tdesc->wTotalLength); 756 if (lenp) 757 *lenp = len; 758 cdesc = malloc(len, M_TEMP, M_WAITOK); 759 memcpy(cdesc, tdesc, len); 760 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); 761 } else { 762 r = usbd_get_config_desc(sc->sc_udev, index, &cdescr); 763 if (r != USBD_NORMAL_COMPLETION) 764 return (0); 765 len = UGETW(cdescr.wTotalLength); 766 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); 767 if (lenp) 768 *lenp = len; 769 cdesc = malloc(len, M_TEMP, M_WAITOK); 770 r = usbd_get_config_desc_full(sc->sc_udev, index, cdesc, len); 771 if (r != USBD_NORMAL_COMPLETION) { 772 free(cdesc, M_TEMP); 773 return (0); 774 } 775 } 776 return (cdesc); 777 } 778 779 int 780 ugen_get_alt_index(sc, ifaceidx) 781 struct ugen_softc *sc; 782 int ifaceidx; 783 { 784 usbd_interface_handle iface; 785 usbd_status r; 786 787 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 788 if (r != USBD_NORMAL_COMPLETION) 789 return (-1); 790 return (usbd_get_interface_altindex(iface)); 791 } 792 793 int 794 ugen_do_ioctl(sc, endpt, cmd, addr, flag, p) 795 struct ugen_softc *sc; 796 int endpt; 797 u_long cmd; 798 caddr_t addr; 799 int flag; 800 struct proc *p; 801 { 802 struct ugen_endpoint *sce; 803 usbd_status r; 804 usbd_interface_handle iface; 805 struct usb_config_desc *cd; 806 usb_config_descriptor_t *cdesc; 807 struct usb_interface_desc *id; 808 usb_interface_descriptor_t *idesc; 809 struct usb_endpoint_desc *ed; 810 usb_endpoint_descriptor_t *edesc; 811 struct usb_alt_interface *ai; 812 struct usb_string_desc *si; 813 u_int8_t conf, alt; 814 815 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 816 if (sc->sc_dying) 817 return (EIO); 818 819 switch (cmd) { 820 case FIONBIO: 821 /* All handled in the upper FS layer. */ 822 return (0); 823 case USB_SET_SHORT_XFER: 824 /* This flag only affects read */ 825 if (endpt == USB_CONTROL_ENDPOINT) 826 return (EINVAL); 827 sce = &sc->sc_endpoints[endpt][IN]; 828 #ifdef DIAGNOSTIC 829 if (!sce->pipeh) { 830 printf("ugenioctl: USB_SET_SHORT_XFER, no pipe\n"); 831 return (EIO); 832 } 833 #endif 834 if (*(int *)addr) 835 sce->state |= UGEN_SHORT_OK; 836 else 837 sce->state &= ~UGEN_SHORT_OK; 838 return (0); 839 case USB_SET_TIMEOUT: 840 sce = &sc->sc_endpoints[endpt][IN]; 841 #ifdef DIAGNOSTIC 842 if (!sce->pipeh) { 843 printf("ugenioctl: USB_SET_TIMEOUT, no pipe\n"); 844 return (EIO); 845 } 846 #endif 847 sce->timeout = *(int *)addr; 848 return (0); 849 default: 850 break; 851 } 852 853 if (endpt != USB_CONTROL_ENDPOINT) 854 return (EINVAL); 855 856 switch (cmd) { 857 #ifdef USB_DEBUG 858 case USB_SETDEBUG: 859 ugendebug = *(int *)addr; 860 break; 861 #endif 862 case USB_GET_CONFIG: 863 r = usbd_get_config(sc->sc_udev, &conf); 864 if (r != USBD_NORMAL_COMPLETION) 865 return (EIO); 866 *(int *)addr = conf; 867 break; 868 case USB_SET_CONFIG: 869 if (!(flag & FWRITE)) 870 return (EPERM); 871 r = ugen_set_config(sc, *(int *)addr); 872 if (r != USBD_NORMAL_COMPLETION) 873 return (EIO); 874 break; 875 case USB_GET_ALTINTERFACE: 876 ai = (struct usb_alt_interface *)addr; 877 r = usbd_device2interface_handle(sc->sc_udev, 878 ai->interface_index, &iface); 879 if (r != USBD_NORMAL_COMPLETION) 880 return (EINVAL); 881 idesc = usbd_get_interface_descriptor(iface); 882 if (!idesc) 883 return (EIO); 884 ai->alt_no = idesc->bAlternateSetting; 885 break; 886 case USB_SET_ALTINTERFACE: 887 if (!(flag & FWRITE)) 888 return (EPERM); 889 ai = (struct usb_alt_interface *)addr; 890 r = usbd_device2interface_handle(sc->sc_udev, 891 ai->interface_index, &iface); 892 if (r != USBD_NORMAL_COMPLETION) 893 return (EINVAL); 894 r = ugen_set_interface(sc, ai->interface_index, ai->alt_no); 895 if (r != USBD_NORMAL_COMPLETION) 896 return (EINVAL); 897 break; 898 case USB_GET_NO_ALT: 899 ai = (struct usb_alt_interface *)addr; 900 cdesc = ugen_get_cdesc(sc, ai->config_index, 0); 901 if (!cdesc) 902 return (EINVAL); 903 idesc = usbd_find_idesc(cdesc, ai->interface_index, 0); 904 if (!idesc) { 905 free(cdesc, M_TEMP); 906 return (EINVAL); 907 } 908 ai->alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); 909 free(cdesc, M_TEMP); 910 break; 911 case USB_GET_DEVICE_DESC: 912 *(usb_device_descriptor_t *)addr = 913 *usbd_get_device_descriptor(sc->sc_udev); 914 break; 915 case USB_GET_CONFIG_DESC: 916 cd = (struct usb_config_desc *)addr; 917 cdesc = ugen_get_cdesc(sc, cd->config_index, 0); 918 if (!cdesc) 919 return (EINVAL); 920 cd->desc = *cdesc; 921 free(cdesc, M_TEMP); 922 break; 923 case USB_GET_INTERFACE_DESC: 924 id = (struct usb_interface_desc *)addr; 925 cdesc = ugen_get_cdesc(sc, id->config_index, 0); 926 if (!cdesc) 927 return (EINVAL); 928 if (id->config_index == USB_CURRENT_CONFIG_INDEX && 929 id->alt_index == USB_CURRENT_ALT_INDEX) 930 alt = ugen_get_alt_index(sc, id->interface_index); 931 else 932 alt = id->alt_index; 933 idesc = usbd_find_idesc(cdesc, id->interface_index, alt); 934 if (!idesc) { 935 free(cdesc, M_TEMP); 936 return (EINVAL); 937 } 938 id->desc = *idesc; 939 free(cdesc, M_TEMP); 940 break; 941 case USB_GET_ENDPOINT_DESC: 942 ed = (struct usb_endpoint_desc *)addr; 943 cdesc = ugen_get_cdesc(sc, ed->config_index, 0); 944 if (!cdesc) 945 return (EINVAL); 946 if (ed->config_index == USB_CURRENT_CONFIG_INDEX && 947 ed->alt_index == USB_CURRENT_ALT_INDEX) 948 alt = ugen_get_alt_index(sc, ed->interface_index); 949 else 950 alt = ed->alt_index; 951 edesc = usbd_find_edesc(cdesc, ed->interface_index, 952 alt, ed->endpoint_index); 953 if (!edesc) { 954 free(cdesc, M_TEMP); 955 return (EINVAL); 956 } 957 ed->desc = *edesc; 958 free(cdesc, M_TEMP); 959 break; 960 case USB_GET_FULL_DESC: 961 { 962 int len; 963 struct iovec iov; 964 struct uio uio; 965 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 966 int error; 967 968 cdesc = ugen_get_cdesc(sc, fd->config_index, &len); 969 if (len > fd->size) 970 len = fd->size; 971 iov.iov_base = (caddr_t)fd->data; 972 iov.iov_len = len; 973 uio.uio_iov = &iov; 974 uio.uio_iovcnt = 1; 975 uio.uio_resid = len; 976 uio.uio_offset = 0; 977 uio.uio_segflg = UIO_USERSPACE; 978 uio.uio_rw = UIO_READ; 979 uio.uio_procp = p; 980 error = uiomove((caddr_t)cdesc, len, &uio); 981 free(cdesc, M_TEMP); 982 return (error); 983 } 984 case USB_GET_STRING_DESC: 985 si = (struct usb_string_desc *)addr; 986 r = usbd_get_string_desc(sc->sc_udev, si->string_index, 987 si->language_id, &si->desc); 988 if (r != USBD_NORMAL_COMPLETION) 989 return (EINVAL); 990 break; 991 case USB_DO_REQUEST: 992 { 993 struct usb_ctl_request *ur = (void *)addr; 994 int len = UGETW(ur->request.wLength); 995 struct iovec iov; 996 struct uio uio; 997 void *ptr = 0; 998 usbd_status r; 999 int error = 0; 1000 1001 if (!(flag & FWRITE)) 1002 return (EPERM); 1003 /* Avoid requests that would damage the bus integrity. */ 1004 if ((ur->request.bmRequestType == UT_WRITE_DEVICE && 1005 ur->request.bRequest == UR_SET_ADDRESS) || 1006 (ur->request.bmRequestType == UT_WRITE_DEVICE && 1007 ur->request.bRequest == UR_SET_CONFIG) || 1008 (ur->request.bmRequestType == UT_WRITE_INTERFACE && 1009 ur->request.bRequest == UR_SET_INTERFACE)) 1010 return (EINVAL); 1011 1012 if (len < 0 || len > 32767) 1013 return (EINVAL); 1014 if (len != 0) { 1015 iov.iov_base = (caddr_t)ur->data; 1016 iov.iov_len = len; 1017 uio.uio_iov = &iov; 1018 uio.uio_iovcnt = 1; 1019 uio.uio_resid = len; 1020 uio.uio_offset = 0; 1021 uio.uio_segflg = UIO_USERSPACE; 1022 uio.uio_rw = 1023 ur->request.bmRequestType & UT_READ ? 1024 UIO_READ : UIO_WRITE; 1025 uio.uio_procp = p; 1026 ptr = malloc(len, M_TEMP, M_WAITOK); 1027 if (uio.uio_rw == UIO_WRITE) { 1028 error = uiomove(ptr, len, &uio); 1029 if (error) 1030 goto ret; 1031 } 1032 } 1033 r = usbd_do_request_flags(sc->sc_udev, &ur->request, 1034 ptr, ur->flags, &ur->actlen); 1035 if (r != USBD_NORMAL_COMPLETION) { 1036 error = EIO; 1037 goto ret; 1038 } 1039 if (len != 0) { 1040 if (uio.uio_rw == UIO_READ) { 1041 error = uiomove(ptr, len, &uio); 1042 if (error) 1043 goto ret; 1044 } 1045 } 1046 ret: 1047 if (ptr) 1048 free(ptr, M_TEMP); 1049 return (error); 1050 } 1051 case USB_GET_DEVICEINFO: 1052 usbd_fill_deviceinfo(sc->sc_udev, 1053 (struct usb_device_info *)addr); 1054 break; 1055 default: 1056 return (EINVAL); 1057 } 1058 return (0); 1059 } 1060 1061 int 1062 ugenioctl(dev, cmd, addr, flag, p) 1063 dev_t dev; 1064 u_long cmd; 1065 caddr_t addr; 1066 int flag; 1067 struct proc *p; 1068 { 1069 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1070 int endpt = UGENENDPOINT(dev); 1071 int error; 1072 1073 sc->sc_refcnt++; 1074 error = ugen_do_ioctl(sc, endpt, cmd, addr, flag, p); 1075 if (--sc->sc_refcnt < 0) 1076 usb_detach_wakeup(&sc->sc_dev); 1077 return (error); 1078 } 1079 1080 int 1081 ugenpoll(dev, events, p) 1082 dev_t dev; 1083 int events; 1084 struct proc *p; 1085 { 1086 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1087 struct ugen_endpoint *sce; 1088 int revents = 0; 1089 int s; 1090 1091 if (sc->sc_dying) 1092 return (EIO); 1093 1094 /* XXX always IN */ 1095 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 1096 #ifdef DIAGNOSTIC 1097 if (!sce->edesc) { 1098 printf("ugenwrite: no edesc\n"); 1099 return (EIO); 1100 } 1101 if (!sce->pipeh) { 1102 printf("ugenpoll: no pipe\n"); 1103 return (EIO); 1104 } 1105 #endif 1106 s = splusb(); 1107 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 1108 case UE_INTERRUPT: 1109 if (events & (POLLIN | POLLRDNORM)) { 1110 if (sce->q.c_cc > 0) 1111 revents |= events & (POLLIN | POLLRDNORM); 1112 else 1113 selrecord(p, &sce->rsel); 1114 } 1115 break; 1116 case UE_BULK: 1117 /* 1118 * We have no easy way of determining if a read will 1119 * yield any data or a write will happen. 1120 * Pretend they will. 1121 */ 1122 revents |= events & 1123 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 1124 break; 1125 default: 1126 break; 1127 } 1128 splx(s); 1129 return (revents); 1130 } 1131 1132 #if defined(__FreeBSD__) 1133 DEV_DRIVER_MODULE(ugen, uhub, ugen_driver, ugen_devclass, ugen_cdevsw, usbd_driver_load, 0); 1134 #endif 1135
Indexes created Fri Sep 26 08:10:20 GMT 2025