ugen.c revision 1.21
1 /* $NetBSD: ugen.c,v 1.21 1999/09/04 22:26:11 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 usbd_device_handle sc_udev; 98 99 char sc_is_open[USB_MAX_ENDPOINTS]; 100 struct ugen_endpoint sc_endpoints[USB_MAX_ENDPOINTS][2]; 101 #define OUT 0 102 #define IN 1 103 104 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 int dir; 208 209 DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n", 210 USBDEVNAME(sc->sc_dev), configno, sc)); 211 if (usbd_get_config_descriptor(dev)->bConfigurationValue != configno) { 212 /* Avoid setting the current value. */ 213 r = usbd_set_config_no(dev, configno, 0); 214 if (r != USBD_NORMAL_COMPLETION) 215 return (r); 216 } 217 218 r = usbd_interface_count(dev, &niface); 219 if (r != USBD_NORMAL_COMPLETION) 220 return (r); 221 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints); 222 for (ifaceno = 0; ifaceno < niface; ifaceno++) { 223 DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno)); 224 r = usbd_device2interface_handle(dev, ifaceno, &iface); 225 if (r != USBD_NORMAL_COMPLETION) 226 return (r); 227 r = usbd_endpoint_count(iface, &nendpt); 228 if (r != USBD_NORMAL_COMPLETION) 229 return (r); 230 for (endptno = 0; endptno < nendpt; endptno++) { 231 ed = usbd_interface2endpoint_descriptor(iface,endptno); 232 endpt = ed->bEndpointAddress; 233 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 234 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 235 DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x" 236 "(%d,%d), sce=%p\n", 237 endptno, endpt, UE_GET_ADDR(endpt), 238 UE_GET_DIR(endpt), sce)); 239 sce->sc = sc; 240 sce->edesc = ed; 241 sce->iface = iface; 242 } 243 } 244 return (USBD_NORMAL_COMPLETION); 245 } 246 247 int 248 ugenopen(dev, flag, mode, p) 249 dev_t dev; 250 int flag; 251 int mode; 252 struct proc *p; 253 { 254 int unit = UGENUNIT(dev); 255 int endpt = UGENENDPOINT(dev); 256 usb_endpoint_descriptor_t *edesc; 257 struct ugen_endpoint *sce; 258 int dir, isize; 259 usbd_status r; 260 261 USB_GET_SC_OPEN(ugen, unit, sc); 262 DPRINTFN(5, ("ugenopen: flag=%d, mode=%d, unit=%d endpt=%d\n", 263 flag, mode, unit, endpt)); 264 265 if (sc->sc_dying) 266 return (ENXIO); 267 268 if (sc->sc_is_open[endpt]) 269 return (EBUSY); 270 271 if (endpt == USB_CONTROL_ENDPOINT) { 272 sc->sc_is_open[USB_CONTROL_ENDPOINT] = 1; 273 return (0); 274 } 275 /* Make sure there are pipes for all directions. */ 276 for (dir = OUT; dir <= IN; dir++) { 277 if (flag & (dir == OUT ? FWRITE : FREAD)) { 278 sce = &sc->sc_endpoints[endpt][dir]; 279 if (sce == 0 || sce->edesc == 0) 280 return (ENXIO); 281 } 282 } 283 284 /* Actually open the pipes. */ 285 /* XXX Should back out properly if it fails. */ 286 for (dir = OUT; dir <= IN; dir++) { 287 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 288 continue; 289 sce = &sc->sc_endpoints[endpt][dir]; 290 sce->state = 0; 291 sce->timeout = USBD_NO_TIMEOUT; 292 DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n", 293 sc, endpt, dir, sce)); 294 edesc = sce->edesc; 295 if (!edesc) 296 return (ENXIO); 297 switch (edesc->bmAttributes & UE_XFERTYPE) { 298 case UE_INTERRUPT: 299 isize = UGETW(edesc->wMaxPacketSize); 300 if (isize == 0) /* shouldn't happen */ 301 return (EINVAL); 302 sce->ibuf = malloc(isize, M_USBDEV, M_WAITOK); 303 DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n", 304 endpt, isize)); 305 #if defined(__NetBSD__) || defined(__OpenBSD__) 306 if (clalloc(&sce->q, UGEN_IBSIZE, 0) == -1) 307 return (ENOMEM); 308 #elif defined(__FreeBSD__) 309 clist_alloc_cblocks(&sce->q, UGEN_IBSIZE, 0); 310 #endif 311 r = usbd_open_pipe_intr(sce->iface, 312 edesc->bEndpointAddress, 313 USBD_SHORT_XFER_OK, &sce->pipeh, sce, 314 sce->ibuf, isize, ugenintr); 315 if (r != USBD_NORMAL_COMPLETION) { 316 free(sce->ibuf, M_USBDEV); 317 #if defined(__NetBSD__) || defined(__OpenBSD__) 318 clfree(&sce->q); 319 #elif defined(__FreeBSD__) 320 clist_free_cblocks(&sce->q); 321 #endif 322 return (EIO); 323 } 324 DPRINTFN(5, ("ugenopen: interrupt open done\n")); 325 break; 326 case UE_BULK: 327 r = usbd_open_pipe(sce->iface, 328 edesc->bEndpointAddress, 0, 329 &sce->pipeh); 330 if (r != USBD_NORMAL_COMPLETION) 331 return (EIO); 332 break; 333 case UE_CONTROL: 334 case UE_ISOCHRONOUS: 335 return (EINVAL); 336 } 337 } 338 sc->sc_is_open[endpt] = 1; 339 return (0); 340 } 341 342 int 343 ugenclose(dev, flag, mode, p) 344 dev_t dev; 345 int flag; 346 int mode; 347 struct proc *p; 348 { 349 USB_GET_SC(ugen, UGENUNIT(dev), sc); 350 int endpt = UGENENDPOINT(dev); 351 struct ugen_endpoint *sce; 352 int dir; 353 354 DPRINTFN(5, ("ugenclose: flag=%d, mode=%d, unit=%d, endpt=%d\n", 355 flag, mode, UGENUNIT(dev), endpt)); 356 357 #ifdef DIAGNOSTIC 358 if (!sc->sc_is_open[endpt]) { 359 printf("ugenclose: not open\n"); 360 return (EINVAL); 361 } 362 #endif 363 364 if (endpt == USB_CONTROL_ENDPOINT) { 365 DPRINTFN(5, ("ugenclose: close control\n")); 366 sc->sc_is_open[endpt] = 0; 367 return (0); 368 } 369 370 for (dir = OUT; dir <= IN; dir++) { 371 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 372 continue; 373 sce = &sc->sc_endpoints[endpt][dir]; 374 if (!sce || !sce->pipeh) 375 continue; 376 DPRINTFN(5, ("ugenclose: endpt=%d dir=%d sce=%p\n", 377 endpt, dir, sce)); 378 379 usbd_abort_pipe(sce->pipeh); 380 usbd_close_pipe(sce->pipeh); 381 sce->pipeh = 0; 382 383 if (sce->ibuf) { 384 free(sce->ibuf, M_USBDEV); 385 sce->ibuf = 0; 386 clfree(&sce->q); 387 } 388 } 389 sc->sc_is_open[endpt] = 0; 390 391 return (0); 392 } 393 394 int 395 ugen_do_read(sc, endpt, uio, flag) 396 struct ugen_softc *sc; 397 int endpt; 398 struct uio *uio; 399 int flag; 400 { 401 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 402 u_int32_t n, tn; 403 char buf[UGEN_BBSIZE]; 404 usbd_request_handle reqh; 405 usbd_status r; 406 int s; 407 int error = 0; 408 u_char buffer[UGEN_CHUNK]; 409 410 DPRINTFN(5, ("ugenread: %d:%d\n", sc->sc_dev.dv_unit, endpt)); 411 if (sc->sc_dying) 412 return (EIO); 413 414 #ifdef DIAGNOSTIC 415 if (!sce->edesc) { 416 printf("ugenread: no edesc\n"); 417 return (EIO); 418 } 419 if (!sce->pipeh) { 420 printf("ugenread: no pipe\n"); 421 return (EIO); 422 } 423 #endif 424 425 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 426 case UE_INTERRUPT: 427 /* Block until activity occured. */ 428 s = splusb(); 429 while (sce->q.c_cc == 0) { 430 if (flag & IO_NDELAY) { 431 splx(s); 432 return (EWOULDBLOCK); 433 } 434 sce->state |= UGEN_ASLP; 435 DPRINTFN(5, ("ugenread: sleep on %p\n", sc)); 436 error = tsleep(sce, PZERO | PCATCH, "ugenri", 0); 437 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 438 if (sc->sc_dying) 439 error = EIO; 440 if (error) { 441 sce->state &= ~UGEN_ASLP; 442 break; 443 } 444 } 445 splx(s); 446 447 /* Transfer as many chunks as possible. */ 448 while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) { 449 n = min(sce->q.c_cc, uio->uio_resid); 450 if (n > sizeof(buffer)) 451 n = sizeof(buffer); 452 453 /* Remove a small chunk from the input queue. */ 454 q_to_b(&sce->q, buffer, n); 455 DPRINTFN(5, ("ugenread: got %d chars\n", n)); 456 457 /* Copy the data to the user process. */ 458 error = uiomove(buffer, n, uio); 459 if (error) 460 break; 461 } 462 break; 463 case UE_BULK: 464 reqh = usbd_alloc_request(); 465 if (reqh == 0) 466 return (ENOMEM); 467 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 468 DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n)); 469 tn = n; 470 r = usbd_bulk_transfer( 471 reqh, sce->pipeh, 472 sce->state & UGEN_SHORT_OK ? 473 USBD_SHORT_XFER_OK : 0, 474 sce->timeout, buf, &tn, "ugenrb"); 475 if (r != USBD_NORMAL_COMPLETION) { 476 if (r == USBD_INTERRUPTED) 477 error = EINTR; 478 else if (r == USBD_TIMEOUT) 479 error = ETIMEDOUT; 480 else 481 error = EIO; 482 break; 483 } 484 DPRINTFN(1, ("ugenread: got %d bytes\n", tn)); 485 error = uiomove(buf, tn, uio); 486 if (error || tn < n) 487 break; 488 } 489 usbd_free_request(reqh); 490 break; 491 default: 492 return (ENXIO); 493 } 494 return (error); 495 } 496 497 int 498 ugenread(dev, uio, flag) 499 dev_t dev; 500 struct uio *uio; 501 int flag; 502 { 503 USB_GET_SC(ugen, UGENUNIT(dev), sc); 504 int endpt = UGENENDPOINT(dev); 505 int error; 506 507 sc->sc_refcnt++; 508 error = ugen_do_read(sc, endpt, uio, flag); 509 if (--sc->sc_refcnt < 0) 510 usb_detach_wakeup(&sc->sc_dev); 511 return (error); 512 } 513 514 int 515 ugen_do_write(sc, endpt, uio, flag) 516 struct ugen_softc *sc; 517 int endpt; 518 struct uio *uio; 519 int flag; 520 { 521 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT]; 522 u_int32_t n; 523 int error = 0; 524 char buf[UGEN_BBSIZE]; 525 usbd_request_handle reqh; 526 usbd_status r; 527 528 if (sc->sc_dying) 529 return (EIO); 530 531 #ifdef DIAGNOSTIC 532 if (!sce->edesc) { 533 printf("ugenwrite: no edesc\n"); 534 return (EIO); 535 } 536 if (!sce->pipeh) { 537 printf("ugenwrite: no pipe\n"); 538 return (EIO); 539 } 540 #endif 541 542 DPRINTF(("ugenwrite\n")); 543 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 544 case UE_BULK: 545 reqh = usbd_alloc_request(); 546 if (reqh == 0) 547 return (EIO); 548 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 549 error = uiomove(buf, n, uio); 550 if (error) 551 break; 552 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 553 r = usbd_bulk_transfer(reqh, sce->pipeh, 0, 554 sce->timeout, buf, &n,"ugenwb"); 555 if (r != USBD_NORMAL_COMPLETION) { 556 if (r == USBD_INTERRUPTED) 557 error = EINTR; 558 else 559 error = EIO; 560 break; 561 } 562 } 563 usbd_free_request(reqh); 564 break; 565 default: 566 return (ENXIO); 567 } 568 return (error); 569 } 570 571 int 572 ugenwrite(dev, uio, flag) 573 dev_t dev; 574 struct uio *uio; 575 int flag; 576 { 577 USB_GET_SC(ugen, UGENUNIT(dev), sc); 578 int endpt = UGENENDPOINT(dev); 579 int error; 580 581 sc->sc_refcnt++; 582 error = ugen_do_write(sc, endpt, uio, flag); 583 if (--sc->sc_refcnt < 0) 584 usb_detach_wakeup(&sc->sc_dev); 585 return (error); 586 } 587 588 int 589 ugen_activate(self, act) 590 bdevice *self; 591 enum devact act; 592 { 593 struct ugen_softc *sc = (struct ugen_softc *)self; 594 595 switch (act) { 596 case DVACT_ACTIVATE: 597 return (EOPNOTSUPP); 598 break; 599 600 case DVACT_DEACTIVATE: 601 sc->sc_dying = 1; 602 break; 603 } 604 return (0); 605 } 606 607 int 608 ugen_detach(self, flags) 609 bdevice *self; 610 int flags; 611 { 612 struct ugen_softc *sc = (struct ugen_softc *)self; 613 struct ugen_endpoint *sce; 614 int maj, mn; 615 int i, dir; 616 int s; 617 618 DPRINTF(("ugen_detach: sc=%p flags=%d\n", sc, flags)); 619 620 sc->sc_dying = 1; 621 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 622 for (i = 0; i < USB_MAX_ENDPOINTS; i++) { 623 for (dir = OUT; dir <= IN; dir++) { 624 sce = &sc->sc_endpoints[i][dir]; 625 if (sce && sce->pipeh) 626 usbd_abort_pipe(sce->pipeh); 627 } 628 } 629 630 s = splusb(); 631 if (--sc->sc_refcnt >= 0) { 632 /* Wake everyone */ 633 for (i = 0; i < USB_MAX_ENDPOINTS; i++) 634 wakeup(&sc->sc_endpoints[i][IN]); 635 /* Wait for processes to go away. */ 636 usb_detach_wait(&sc->sc_dev); 637 } 638 splx(s); 639 640 /* locate the major number */ 641 for (maj = 0; maj < nchrdev; maj++) 642 if (cdevsw[maj].d_open == ugenopen) 643 break; 644 645 /* Nuke the vnodes for any open instances (calls close). */ 646 mn = self->dv_unit * USB_MAX_ENDPOINTS; 647 vdevgone(maj, mn, mn + USB_MAX_ENDPOINTS - 1, VCHR); 648 649 return (0); 650 } 651 652 void 653 ugenintr(reqh, addr, status) 654 usbd_request_handle reqh; 655 usbd_private_handle addr; 656 usbd_status status; 657 { 658 struct ugen_endpoint *sce = addr; 659 /*struct ugen_softc *sc = sce->sc;*/ 660 u_int32_t count; 661 u_char *ibuf; 662 663 if (status == USBD_CANCELLED) 664 return; 665 666 if (status != USBD_NORMAL_COMPLETION) { 667 DPRINTF(("ugenintr: status=%d\n", status)); 668 usbd_clear_endpoint_stall_async(sce->pipeh); 669 return; 670 } 671 672 usbd_get_request_status(reqh, 0, 0, &count, 0); 673 ibuf = sce->ibuf; 674 675 DPRINTFN(5, ("ugenintr: reqh=%p status=%d count=%d\n", 676 reqh, status, count)); 677 DPRINTFN(5, (" data = %02x %02x %02x\n", 678 ibuf[0], ibuf[1], ibuf[2])); 679 680 (void)b_to_q(ibuf, count, &sce->q); 681 682 if (sce->state & UGEN_ASLP) { 683 sce->state &= ~UGEN_ASLP; 684 DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); 685 wakeup(sce); 686 } 687 selwakeup(&sce->rsel); 688 } 689 690 usbd_status 691 ugen_set_interface(sc, ifaceidx, altno) 692 struct ugen_softc *sc; 693 int ifaceidx, altno; 694 { 695 usbd_interface_handle iface; 696 usb_endpoint_descriptor_t *ed; 697 usbd_status r; 698 struct ugen_endpoint *sce; 699 u_int8_t niface, nendpt, endptno, endpt; 700 int dir; 701 702 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); 703 704 r = usbd_interface_count(sc->sc_udev, &niface); 705 if (r != USBD_NORMAL_COMPLETION) 706 return (r); 707 if (ifaceidx < 0 || ifaceidx >= niface) 708 return (USBD_INVAL); 709 710 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 711 if (r != USBD_NORMAL_COMPLETION) 712 return (r); 713 r = usbd_endpoint_count(iface, &nendpt); 714 if (r != USBD_NORMAL_COMPLETION) 715 return (r); 716 for (endptno = 0; endptno < nendpt; endptno++) { 717 ed = usbd_interface2endpoint_descriptor(iface,endptno); 718 endpt = ed->bEndpointAddress; 719 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 720 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 721 sce->sc = 0; 722 sce->edesc = 0; 723 sce->iface = 0; 724 } 725 726 /* change setting */ 727 r = usbd_set_interface(iface, altno); 728 if (r != USBD_NORMAL_COMPLETION) 729 return (r); 730 731 r = usbd_endpoint_count(iface, &nendpt); 732 if (r != USBD_NORMAL_COMPLETION) 733 return (r); 734 for (endptno = 0; endptno < nendpt; endptno++) { 735 ed = usbd_interface2endpoint_descriptor(iface,endptno); 736 endpt = ed->bEndpointAddress; 737 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 738 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 739 sce->sc = sc; 740 sce->edesc = ed; 741 sce->iface = iface; 742 } 743 return (0); 744 } 745 746 /* Retrieve a complete descriptor for a certain device and index. */ 747 usb_config_descriptor_t * 748 ugen_get_cdesc(sc, index, lenp) 749 struct ugen_softc *sc; 750 int index; 751 int *lenp; 752 { 753 usb_config_descriptor_t *cdesc, *tdesc, cdescr; 754 int len; 755 usbd_status r; 756 757 if (index == USB_CURRENT_CONFIG_INDEX) { 758 tdesc = usbd_get_config_descriptor(sc->sc_udev); 759 len = UGETW(tdesc->wTotalLength); 760 if (lenp) 761 *lenp = len; 762 cdesc = malloc(len, M_TEMP, M_WAITOK); 763 memcpy(cdesc, tdesc, len); 764 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); 765 } else { 766 r = usbd_get_config_desc(sc->sc_udev, index, &cdescr); 767 if (r != USBD_NORMAL_COMPLETION) 768 return (0); 769 len = UGETW(cdescr.wTotalLength); 770 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); 771 if (lenp) 772 *lenp = len; 773 cdesc = malloc(len, M_TEMP, M_WAITOK); 774 r = usbd_get_config_desc_full(sc->sc_udev, index, cdesc, len); 775 if (r != USBD_NORMAL_COMPLETION) { 776 free(cdesc, M_TEMP); 777 return (0); 778 } 779 } 780 return (cdesc); 781 } 782 783 int 784 ugen_get_alt_index(sc, ifaceidx) 785 struct ugen_softc *sc; 786 int ifaceidx; 787 { 788 usbd_interface_handle iface; 789 usbd_status r; 790 791 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 792 if (r != USBD_NORMAL_COMPLETION) 793 return (-1); 794 return (usbd_get_interface_altindex(iface)); 795 } 796 797 int 798 ugen_do_ioctl(sc, endpt, cmd, addr, flag, p) 799 struct ugen_softc *sc; 800 int endpt; 801 u_long cmd; 802 caddr_t addr; 803 int flag; 804 struct proc *p; 805 { 806 struct ugen_endpoint *sce; 807 usbd_status r; 808 usbd_interface_handle iface; 809 struct usb_config_desc *cd; 810 usb_config_descriptor_t *cdesc; 811 struct usb_interface_desc *id; 812 usb_interface_descriptor_t *idesc; 813 struct usb_endpoint_desc *ed; 814 usb_endpoint_descriptor_t *edesc; 815 struct usb_alt_interface *ai; 816 struct usb_string_desc *si; 817 u_int8_t conf, alt; 818 819 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 820 if (sc->sc_dying) 821 return (EIO); 822 823 switch (cmd) { 824 case FIONBIO: 825 /* All handled in the upper FS layer. */ 826 return (0); 827 case USB_SET_SHORT_XFER: 828 /* This flag only affects read */ 829 if (endpt == USB_CONTROL_ENDPOINT) 830 return (EINVAL); 831 sce = &sc->sc_endpoints[endpt][IN]; 832 #ifdef DIAGNOSTIC 833 if (!sce->pipeh) { 834 printf("ugenioctl: USB_SET_SHORT_XFER, no pipe\n"); 835 return (EIO); 836 } 837 #endif 838 if (*(int *)addr) 839 sce->state |= UGEN_SHORT_OK; 840 else 841 sce->state &= ~UGEN_SHORT_OK; 842 return (0); 843 case USB_SET_TIMEOUT: 844 sce = &sc->sc_endpoints[endpt][IN]; 845 #ifdef DIAGNOSTIC 846 if (!sce->pipeh) { 847 printf("ugenioctl: USB_SET_TIMEOUT, no pipe\n"); 848 return (EIO); 849 } 850 #endif 851 sce->timeout = *(int *)addr; 852 return (0); 853 default: 854 break; 855 } 856 857 if (endpt != USB_CONTROL_ENDPOINT) 858 return (EINVAL); 859 860 switch (cmd) { 861 #ifdef USB_DEBUG 862 case USB_SETDEBUG: 863 ugendebug = *(int *)addr; 864 break; 865 #endif 866 case USB_GET_CONFIG: 867 r = usbd_get_config(sc->sc_udev, &conf); 868 if (r != USBD_NORMAL_COMPLETION) 869 return (EIO); 870 *(int *)addr = conf; 871 break; 872 case USB_SET_CONFIG: 873 if (!(flag & FWRITE)) 874 return (EPERM); 875 r = ugen_set_config(sc, *(int *)addr); 876 if (r != USBD_NORMAL_COMPLETION) 877 return (EIO); 878 break; 879 case USB_GET_ALTINTERFACE: 880 ai = (struct usb_alt_interface *)addr; 881 r = usbd_device2interface_handle(sc->sc_udev, 882 ai->interface_index, &iface); 883 if (r != USBD_NORMAL_COMPLETION) 884 return (EINVAL); 885 idesc = usbd_get_interface_descriptor(iface); 886 if (!idesc) 887 return (EIO); 888 ai->alt_no = idesc->bAlternateSetting; 889 break; 890 case USB_SET_ALTINTERFACE: 891 if (!(flag & FWRITE)) 892 return (EPERM); 893 ai = (struct usb_alt_interface *)addr; 894 r = usbd_device2interface_handle(sc->sc_udev, 895 ai->interface_index, &iface); 896 if (r != USBD_NORMAL_COMPLETION) 897 return (EINVAL); 898 r = ugen_set_interface(sc, ai->interface_index, ai->alt_no); 899 if (r != USBD_NORMAL_COMPLETION) 900 return (EINVAL); 901 break; 902 case USB_GET_NO_ALT: 903 ai = (struct usb_alt_interface *)addr; 904 cdesc = ugen_get_cdesc(sc, ai->config_index, 0); 905 if (!cdesc) 906 return (EINVAL); 907 idesc = usbd_find_idesc(cdesc, ai->interface_index, 0); 908 if (!idesc) { 909 free(cdesc, M_TEMP); 910 return (EINVAL); 911 } 912 ai->alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); 913 free(cdesc, M_TEMP); 914 break; 915 case USB_GET_DEVICE_DESC: 916 *(usb_device_descriptor_t *)addr = 917 *usbd_get_device_descriptor(sc->sc_udev); 918 break; 919 case USB_GET_CONFIG_DESC: 920 cd = (struct usb_config_desc *)addr; 921 cdesc = ugen_get_cdesc(sc, cd->config_index, 0); 922 if (!cdesc) 923 return (EINVAL); 924 cd->desc = *cdesc; 925 free(cdesc, M_TEMP); 926 break; 927 case USB_GET_INTERFACE_DESC: 928 id = (struct usb_interface_desc *)addr; 929 cdesc = ugen_get_cdesc(sc, id->config_index, 0); 930 if (!cdesc) 931 return (EINVAL); 932 if (id->config_index == USB_CURRENT_CONFIG_INDEX && 933 id->alt_index == USB_CURRENT_ALT_INDEX) 934 alt = ugen_get_alt_index(sc, id->interface_index); 935 else 936 alt = id->alt_index; 937 idesc = usbd_find_idesc(cdesc, id->interface_index, alt); 938 if (!idesc) { 939 free(cdesc, M_TEMP); 940 return (EINVAL); 941 } 942 id->desc = *idesc; 943 free(cdesc, M_TEMP); 944 break; 945 case USB_GET_ENDPOINT_DESC: 946 ed = (struct usb_endpoint_desc *)addr; 947 cdesc = ugen_get_cdesc(sc, ed->config_index, 0); 948 if (!cdesc) 949 return (EINVAL); 950 if (ed->config_index == USB_CURRENT_CONFIG_INDEX && 951 ed->alt_index == USB_CURRENT_ALT_INDEX) 952 alt = ugen_get_alt_index(sc, ed->interface_index); 953 else 954 alt = ed->alt_index; 955 edesc = usbd_find_edesc(cdesc, ed->interface_index, 956 alt, ed->endpoint_index); 957 if (!edesc) { 958 free(cdesc, M_TEMP); 959 return (EINVAL); 960 } 961 ed->desc = *edesc; 962 free(cdesc, M_TEMP); 963 break; 964 case USB_GET_FULL_DESC: 965 { 966 int len; 967 struct iovec iov; 968 struct uio uio; 969 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 970 int error; 971 972 cdesc = ugen_get_cdesc(sc, fd->config_index, &len); 973 if (len > fd->size) 974 len = fd->size; 975 iov.iov_base = (caddr_t)fd->data; 976 iov.iov_len = len; 977 uio.uio_iov = &iov; 978 uio.uio_iovcnt = 1; 979 uio.uio_resid = len; 980 uio.uio_offset = 0; 981 uio.uio_segflg = UIO_USERSPACE; 982 uio.uio_rw = UIO_READ; 983 uio.uio_procp = p; 984 error = uiomove((caddr_t)cdesc, len, &uio); 985 free(cdesc, M_TEMP); 986 return (error); 987 } 988 case USB_GET_STRING_DESC: 989 si = (struct usb_string_desc *)addr; 990 r = usbd_get_string_desc(sc->sc_udev, si->string_index, 991 si->language_id, &si->desc); 992 if (r != USBD_NORMAL_COMPLETION) 993 return (EINVAL); 994 break; 995 case USB_DO_REQUEST: 996 { 997 struct usb_ctl_request *ur = (void *)addr; 998 int len = UGETW(ur->request.wLength); 999 struct iovec iov; 1000 struct uio uio; 1001 void *ptr = 0; 1002 usbd_status r; 1003 int error = 0; 1004 1005 if (!(flag & FWRITE)) 1006 return (EPERM); 1007 /* Avoid requests that would damage the bus integrity. */ 1008 if ((ur->request.bmRequestType == UT_WRITE_DEVICE && 1009 ur->request.bRequest == UR_SET_ADDRESS) || 1010 (ur->request.bmRequestType == UT_WRITE_DEVICE && 1011 ur->request.bRequest == UR_SET_CONFIG) || 1012 (ur->request.bmRequestType == UT_WRITE_INTERFACE && 1013 ur->request.bRequest == UR_SET_INTERFACE)) 1014 return (EINVAL); 1015 1016 if (len < 0 || len > 32767) 1017 return (EINVAL); 1018 if (len != 0) { 1019 iov.iov_base = (caddr_t)ur->data; 1020 iov.iov_len = len; 1021 uio.uio_iov = &iov; 1022 uio.uio_iovcnt = 1; 1023 uio.uio_resid = len; 1024 uio.uio_offset = 0; 1025 uio.uio_segflg = UIO_USERSPACE; 1026 uio.uio_rw = 1027 ur->request.bmRequestType & UT_READ ? 1028 UIO_READ : UIO_WRITE; 1029 uio.uio_procp = p; 1030 ptr = malloc(len, M_TEMP, M_WAITOK); 1031 if (uio.uio_rw == UIO_WRITE) { 1032 error = uiomove(ptr, len, &uio); 1033 if (error) 1034 goto ret; 1035 } 1036 } 1037 r = usbd_do_request_flags(sc->sc_udev, &ur->request, 1038 ptr, ur->flags, &ur->actlen); 1039 if (r != USBD_NORMAL_COMPLETION) { 1040 error = EIO; 1041 goto ret; 1042 } 1043 if (len != 0) { 1044 if (uio.uio_rw == UIO_READ) { 1045 error = uiomove(ptr, len, &uio); 1046 if (error) 1047 goto ret; 1048 } 1049 } 1050 ret: 1051 if (ptr) 1052 free(ptr, M_TEMP); 1053 return (error); 1054 } 1055 case USB_GET_DEVICEINFO: 1056 usbd_fill_deviceinfo(sc->sc_udev, 1057 (struct usb_device_info *)addr); 1058 break; 1059 default: 1060 return (EINVAL); 1061 } 1062 return (0); 1063 } 1064 1065 int 1066 ugenioctl(dev, cmd, addr, flag, p) 1067 dev_t dev; 1068 u_long cmd; 1069 caddr_t addr; 1070 int flag; 1071 struct proc *p; 1072 { 1073 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1074 int endpt = UGENENDPOINT(dev); 1075 int error; 1076 1077 sc->sc_refcnt++; 1078 error = ugen_do_ioctl(sc, endpt, cmd, addr, flag, p); 1079 if (--sc->sc_refcnt < 0) 1080 usb_detach_wakeup(&sc->sc_dev); 1081 return (error); 1082 } 1083 1084 int 1085 ugenpoll(dev, events, p) 1086 dev_t dev; 1087 int events; 1088 struct proc *p; 1089 { 1090 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1091 struct ugen_endpoint *sce; 1092 int revents = 0; 1093 int s; 1094 1095 if (sc->sc_dying) 1096 return (EIO); 1097 1098 /* XXX always IN */ 1099 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 1100 #ifdef DIAGNOSTIC 1101 if (!sce->edesc) { 1102 printf("ugenwrite: no edesc\n"); 1103 return (EIO); 1104 } 1105 if (!sce->pipeh) { 1106 printf("ugenpoll: no pipe\n"); 1107 return (EIO); 1108 } 1109 #endif 1110 s = splusb(); 1111 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 1112 case UE_INTERRUPT: 1113 if (events & (POLLIN | POLLRDNORM)) { 1114 if (sce->q.c_cc > 0) 1115 revents |= events & (POLLIN | POLLRDNORM); 1116 else 1117 selrecord(p, &sce->rsel); 1118 } 1119 break; 1120 case UE_BULK: 1121 /* 1122 * We have no easy way of determining if a read will 1123 * yield any data or a write will happen. 1124 * Pretend they will. 1125 */ 1126 revents |= events & 1127 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 1128 break; 1129 default: 1130 break; 1131 } 1132 splx(s); 1133 return (revents); 1134 } 1135 1136 #if defined(__FreeBSD__) 1137 DEV_DRIVER_MODULE(ugen, uhub, ugen_driver, ugen_devclass, ugen_cdevsw, usbd_driver_load, 0); 1138 #endif 1139
Indexes created Fri Sep 26 20:09:58 GMT 2025