ugen.c revision 1.22
1 /* $NetBSD: ugen.c,v 1.22 1999/09/05 19:32:18 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 USBBASEDEVICE 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 #ifdef __NetBSD__ 411 DPRINTFN(5, ("ugenread: %d:%d\n", sc->sc_dev.dv_unit, endpt)); 412 #endif 413 if (sc->sc_dying) 414 return (EIO); 415 416 #ifdef DIAGNOSTIC 417 if (!sce->edesc) { 418 printf("ugenread: no edesc\n"); 419 return (EIO); 420 } 421 if (!sce->pipeh) { 422 printf("ugenread: no pipe\n"); 423 return (EIO); 424 } 425 #endif 426 427 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 428 case UE_INTERRUPT: 429 /* Block until activity occured. */ 430 s = splusb(); 431 while (sce->q.c_cc == 0) { 432 if (flag & IO_NDELAY) { 433 splx(s); 434 return (EWOULDBLOCK); 435 } 436 sce->state |= UGEN_ASLP; 437 DPRINTFN(5, ("ugenread: sleep on %p\n", sc)); 438 error = tsleep(sce, PZERO | PCATCH, "ugenri", 0); 439 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 440 if (sc->sc_dying) 441 error = EIO; 442 if (error) { 443 sce->state &= ~UGEN_ASLP; 444 break; 445 } 446 } 447 splx(s); 448 449 /* Transfer as many chunks as possible. */ 450 while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) { 451 n = min(sce->q.c_cc, uio->uio_resid); 452 if (n > sizeof(buffer)) 453 n = sizeof(buffer); 454 455 /* Remove a small chunk from the input queue. */ 456 q_to_b(&sce->q, buffer, n); 457 DPRINTFN(5, ("ugenread: got %d chars\n", n)); 458 459 /* Copy the data to the user process. */ 460 error = uiomove(buffer, n, uio); 461 if (error) 462 break; 463 } 464 break; 465 case UE_BULK: 466 reqh = usbd_alloc_request(); 467 if (reqh == 0) 468 return (ENOMEM); 469 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 470 DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n)); 471 tn = n; 472 r = usbd_bulk_transfer( 473 reqh, sce->pipeh, 474 sce->state & UGEN_SHORT_OK ? 475 USBD_SHORT_XFER_OK : 0, 476 sce->timeout, buf, &tn, "ugenrb"); 477 if (r != USBD_NORMAL_COMPLETION) { 478 if (r == USBD_INTERRUPTED) 479 error = EINTR; 480 else if (r == USBD_TIMEOUT) 481 error = ETIMEDOUT; 482 else 483 error = EIO; 484 break; 485 } 486 DPRINTFN(1, ("ugenread: got %d bytes\n", tn)); 487 error = uiomove(buf, tn, uio); 488 if (error || tn < n) 489 break; 490 } 491 usbd_free_request(reqh); 492 break; 493 default: 494 return (ENXIO); 495 } 496 return (error); 497 } 498 499 int 500 ugenread(dev, uio, flag) 501 dev_t dev; 502 struct uio *uio; 503 int flag; 504 { 505 USB_GET_SC(ugen, UGENUNIT(dev), sc); 506 int endpt = UGENENDPOINT(dev); 507 int error; 508 509 sc->sc_refcnt++; 510 error = ugen_do_read(sc, endpt, uio, flag); 511 if (--sc->sc_refcnt < 0) 512 usb_detach_wakeup(USBDEV(sc->sc_dev)); 513 return (error); 514 } 515 516 int 517 ugen_do_write(sc, endpt, uio, flag) 518 struct ugen_softc *sc; 519 int endpt; 520 struct uio *uio; 521 int flag; 522 { 523 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT]; 524 u_int32_t n; 525 int error = 0; 526 char buf[UGEN_BBSIZE]; 527 usbd_request_handle reqh; 528 usbd_status r; 529 530 if (sc->sc_dying) 531 return (EIO); 532 533 #ifdef DIAGNOSTIC 534 if (!sce->edesc) { 535 printf("ugenwrite: no edesc\n"); 536 return (EIO); 537 } 538 if (!sce->pipeh) { 539 printf("ugenwrite: no pipe\n"); 540 return (EIO); 541 } 542 #endif 543 544 DPRINTF(("ugenwrite\n")); 545 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 546 case UE_BULK: 547 reqh = usbd_alloc_request(); 548 if (reqh == 0) 549 return (EIO); 550 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 551 error = uiomove(buf, n, uio); 552 if (error) 553 break; 554 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 555 r = usbd_bulk_transfer(reqh, sce->pipeh, 0, 556 sce->timeout, buf, &n,"ugenwb"); 557 if (r != USBD_NORMAL_COMPLETION) { 558 if (r == USBD_INTERRUPTED) 559 error = EINTR; 560 else 561 error = EIO; 562 break; 563 } 564 } 565 usbd_free_request(reqh); 566 break; 567 default: 568 return (ENXIO); 569 } 570 return (error); 571 } 572 573 int 574 ugenwrite(dev, uio, flag) 575 dev_t dev; 576 struct uio *uio; 577 int flag; 578 { 579 USB_GET_SC(ugen, UGENUNIT(dev), sc); 580 int endpt = UGENENDPOINT(dev); 581 int error; 582 583 sc->sc_refcnt++; 584 error = ugen_do_write(sc, endpt, uio, flag); 585 if (--sc->sc_refcnt < 0) 586 usb_detach_wakeup(USBDEV(sc->sc_dev)); 587 return (error); 588 } 589 590 int 591 ugen_activate(self, act) 592 device_ptr_t self; 593 enum devact act; 594 { 595 struct ugen_softc *sc = (struct ugen_softc *)self; 596 597 switch (act) { 598 case DVACT_ACTIVATE: 599 return (EOPNOTSUPP); 600 break; 601 602 case DVACT_DEACTIVATE: 603 sc->sc_dying = 1; 604 break; 605 } 606 return (0); 607 } 608 609 int 610 ugen_detach(self, flags) 611 device_ptr_t self; 612 int flags; 613 { 614 struct ugen_softc *sc = (struct ugen_softc *)self; 615 struct ugen_endpoint *sce; 616 int maj, mn; 617 int i, dir; 618 int s; 619 620 DPRINTF(("ugen_detach: sc=%p flags=%d\n", sc, flags)); 621 622 sc->sc_dying = 1; 623 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 624 for (i = 0; i < USB_MAX_ENDPOINTS; i++) { 625 for (dir = OUT; dir <= IN; dir++) { 626 sce = &sc->sc_endpoints[i][dir]; 627 if (sce && sce->pipeh) 628 usbd_abort_pipe(sce->pipeh); 629 } 630 } 631 632 s = splusb(); 633 if (--sc->sc_refcnt >= 0) { 634 /* Wake everyone */ 635 for (i = 0; i < USB_MAX_ENDPOINTS; i++) 636 wakeup(&sc->sc_endpoints[i][IN]); 637 /* Wait for processes to go away. */ 638 usb_detach_wait(USBDEV(sc->sc_dev)); 639 } 640 splx(s); 641 642 /* locate the major number */ 643 for (maj = 0; maj < nchrdev; maj++) 644 if (cdevsw[maj].d_open == ugenopen) 645 break; 646 647 /* Nuke the vnodes for any open instances (calls close). */ 648 mn = self->dv_unit * USB_MAX_ENDPOINTS; 649 vdevgone(maj, mn, mn + USB_MAX_ENDPOINTS - 1, VCHR); 650 651 return (0); 652 } 653 654 void 655 ugenintr(reqh, addr, status) 656 usbd_request_handle reqh; 657 usbd_private_handle addr; 658 usbd_status status; 659 { 660 struct ugen_endpoint *sce = addr; 661 /*struct ugen_softc *sc = sce->sc;*/ 662 u_int32_t count; 663 u_char *ibuf; 664 665 if (status == USBD_CANCELLED) 666 return; 667 668 if (status != USBD_NORMAL_COMPLETION) { 669 DPRINTF(("ugenintr: status=%d\n", status)); 670 usbd_clear_endpoint_stall_async(sce->pipeh); 671 return; 672 } 673 674 usbd_get_request_status(reqh, 0, 0, &count, 0); 675 ibuf = sce->ibuf; 676 677 DPRINTFN(5, ("ugenintr: reqh=%p status=%d count=%d\n", 678 reqh, status, count)); 679 DPRINTFN(5, (" data = %02x %02x %02x\n", 680 ibuf[0], ibuf[1], ibuf[2])); 681 682 (void)b_to_q(ibuf, count, &sce->q); 683 684 if (sce->state & UGEN_ASLP) { 685 sce->state &= ~UGEN_ASLP; 686 DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); 687 wakeup(sce); 688 } 689 selwakeup(&sce->rsel); 690 } 691 692 usbd_status 693 ugen_set_interface(sc, ifaceidx, altno) 694 struct ugen_softc *sc; 695 int ifaceidx, altno; 696 { 697 usbd_interface_handle iface; 698 usb_endpoint_descriptor_t *ed; 699 usbd_status r; 700 struct ugen_endpoint *sce; 701 u_int8_t niface, nendpt, endptno, endpt; 702 int dir; 703 704 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); 705 706 r = usbd_interface_count(sc->sc_udev, &niface); 707 if (r != USBD_NORMAL_COMPLETION) 708 return (r); 709 if (ifaceidx < 0 || ifaceidx >= niface) 710 return (USBD_INVAL); 711 712 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 713 if (r != USBD_NORMAL_COMPLETION) 714 return (r); 715 r = usbd_endpoint_count(iface, &nendpt); 716 if (r != USBD_NORMAL_COMPLETION) 717 return (r); 718 for (endptno = 0; endptno < nendpt; endptno++) { 719 ed = usbd_interface2endpoint_descriptor(iface,endptno); 720 endpt = ed->bEndpointAddress; 721 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 722 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 723 sce->sc = 0; 724 sce->edesc = 0; 725 sce->iface = 0; 726 } 727 728 /* change setting */ 729 r = usbd_set_interface(iface, altno); 730 if (r != USBD_NORMAL_COMPLETION) 731 return (r); 732 733 r = usbd_endpoint_count(iface, &nendpt); 734 if (r != USBD_NORMAL_COMPLETION) 735 return (r); 736 for (endptno = 0; endptno < nendpt; endptno++) { 737 ed = usbd_interface2endpoint_descriptor(iface,endptno); 738 endpt = ed->bEndpointAddress; 739 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 740 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 741 sce->sc = sc; 742 sce->edesc = ed; 743 sce->iface = iface; 744 } 745 return (0); 746 } 747 748 /* Retrieve a complete descriptor for a certain device and index. */ 749 usb_config_descriptor_t * 750 ugen_get_cdesc(sc, index, lenp) 751 struct ugen_softc *sc; 752 int index; 753 int *lenp; 754 { 755 usb_config_descriptor_t *cdesc, *tdesc, cdescr; 756 int len; 757 usbd_status r; 758 759 if (index == USB_CURRENT_CONFIG_INDEX) { 760 tdesc = usbd_get_config_descriptor(sc->sc_udev); 761 len = UGETW(tdesc->wTotalLength); 762 if (lenp) 763 *lenp = len; 764 cdesc = malloc(len, M_TEMP, M_WAITOK); 765 memcpy(cdesc, tdesc, len); 766 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); 767 } else { 768 r = usbd_get_config_desc(sc->sc_udev, index, &cdescr); 769 if (r != USBD_NORMAL_COMPLETION) 770 return (0); 771 len = UGETW(cdescr.wTotalLength); 772 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); 773 if (lenp) 774 *lenp = len; 775 cdesc = malloc(len, M_TEMP, M_WAITOK); 776 r = usbd_get_config_desc_full(sc->sc_udev, index, cdesc, len); 777 if (r != USBD_NORMAL_COMPLETION) { 778 free(cdesc, M_TEMP); 779 return (0); 780 } 781 } 782 return (cdesc); 783 } 784 785 int 786 ugen_get_alt_index(sc, ifaceidx) 787 struct ugen_softc *sc; 788 int ifaceidx; 789 { 790 usbd_interface_handle iface; 791 usbd_status r; 792 793 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 794 if (r != USBD_NORMAL_COMPLETION) 795 return (-1); 796 return (usbd_get_interface_altindex(iface)); 797 } 798 799 int 800 ugen_do_ioctl(sc, endpt, cmd, addr, flag, p) 801 struct ugen_softc *sc; 802 int endpt; 803 u_long cmd; 804 caddr_t addr; 805 int flag; 806 struct proc *p; 807 { 808 struct ugen_endpoint *sce; 809 usbd_status r; 810 usbd_interface_handle iface; 811 struct usb_config_desc *cd; 812 usb_config_descriptor_t *cdesc; 813 struct usb_interface_desc *id; 814 usb_interface_descriptor_t *idesc; 815 struct usb_endpoint_desc *ed; 816 usb_endpoint_descriptor_t *edesc; 817 struct usb_alt_interface *ai; 818 struct usb_string_desc *si; 819 u_int8_t conf, alt; 820 821 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 822 if (sc->sc_dying) 823 return (EIO); 824 825 switch (cmd) { 826 case FIONBIO: 827 /* All handled in the upper FS layer. */ 828 return (0); 829 case USB_SET_SHORT_XFER: 830 /* This flag only affects read */ 831 if (endpt == USB_CONTROL_ENDPOINT) 832 return (EINVAL); 833 sce = &sc->sc_endpoints[endpt][IN]; 834 #ifdef DIAGNOSTIC 835 if (!sce->pipeh) { 836 printf("ugenioctl: USB_SET_SHORT_XFER, no pipe\n"); 837 return (EIO); 838 } 839 #endif 840 if (*(int *)addr) 841 sce->state |= UGEN_SHORT_OK; 842 else 843 sce->state &= ~UGEN_SHORT_OK; 844 return (0); 845 case USB_SET_TIMEOUT: 846 sce = &sc->sc_endpoints[endpt][IN]; 847 #ifdef DIAGNOSTIC 848 if (!sce->pipeh) { 849 printf("ugenioctl: USB_SET_TIMEOUT, no pipe\n"); 850 return (EIO); 851 } 852 #endif 853 sce->timeout = *(int *)addr; 854 return (0); 855 default: 856 break; 857 } 858 859 if (endpt != USB_CONTROL_ENDPOINT) 860 return (EINVAL); 861 862 switch (cmd) { 863 #ifdef USB_DEBUG 864 case USB_SETDEBUG: 865 ugendebug = *(int *)addr; 866 break; 867 #endif 868 case USB_GET_CONFIG: 869 r = usbd_get_config(sc->sc_udev, &conf); 870 if (r != USBD_NORMAL_COMPLETION) 871 return (EIO); 872 *(int *)addr = conf; 873 break; 874 case USB_SET_CONFIG: 875 if (!(flag & FWRITE)) 876 return (EPERM); 877 r = ugen_set_config(sc, *(int *)addr); 878 if (r != USBD_NORMAL_COMPLETION) 879 return (EIO); 880 break; 881 case USB_GET_ALTINTERFACE: 882 ai = (struct usb_alt_interface *)addr; 883 r = usbd_device2interface_handle(sc->sc_udev, 884 ai->interface_index, &iface); 885 if (r != USBD_NORMAL_COMPLETION) 886 return (EINVAL); 887 idesc = usbd_get_interface_descriptor(iface); 888 if (!idesc) 889 return (EIO); 890 ai->alt_no = idesc->bAlternateSetting; 891 break; 892 case USB_SET_ALTINTERFACE: 893 if (!(flag & FWRITE)) 894 return (EPERM); 895 ai = (struct usb_alt_interface *)addr; 896 r = usbd_device2interface_handle(sc->sc_udev, 897 ai->interface_index, &iface); 898 if (r != USBD_NORMAL_COMPLETION) 899 return (EINVAL); 900 r = ugen_set_interface(sc, ai->interface_index, ai->alt_no); 901 if (r != USBD_NORMAL_COMPLETION) 902 return (EINVAL); 903 break; 904 case USB_GET_NO_ALT: 905 ai = (struct usb_alt_interface *)addr; 906 cdesc = ugen_get_cdesc(sc, ai->config_index, 0); 907 if (!cdesc) 908 return (EINVAL); 909 idesc = usbd_find_idesc(cdesc, ai->interface_index, 0); 910 if (!idesc) { 911 free(cdesc, M_TEMP); 912 return (EINVAL); 913 } 914 ai->alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); 915 free(cdesc, M_TEMP); 916 break; 917 case USB_GET_DEVICE_DESC: 918 *(usb_device_descriptor_t *)addr = 919 *usbd_get_device_descriptor(sc->sc_udev); 920 break; 921 case USB_GET_CONFIG_DESC: 922 cd = (struct usb_config_desc *)addr; 923 cdesc = ugen_get_cdesc(sc, cd->config_index, 0); 924 if (!cdesc) 925 return (EINVAL); 926 cd->desc = *cdesc; 927 free(cdesc, M_TEMP); 928 break; 929 case USB_GET_INTERFACE_DESC: 930 id = (struct usb_interface_desc *)addr; 931 cdesc = ugen_get_cdesc(sc, id->config_index, 0); 932 if (!cdesc) 933 return (EINVAL); 934 if (id->config_index == USB_CURRENT_CONFIG_INDEX && 935 id->alt_index == USB_CURRENT_ALT_INDEX) 936 alt = ugen_get_alt_index(sc, id->interface_index); 937 else 938 alt = id->alt_index; 939 idesc = usbd_find_idesc(cdesc, id->interface_index, alt); 940 if (!idesc) { 941 free(cdesc, M_TEMP); 942 return (EINVAL); 943 } 944 id->desc = *idesc; 945 free(cdesc, M_TEMP); 946 break; 947 case USB_GET_ENDPOINT_DESC: 948 ed = (struct usb_endpoint_desc *)addr; 949 cdesc = ugen_get_cdesc(sc, ed->config_index, 0); 950 if (!cdesc) 951 return (EINVAL); 952 if (ed->config_index == USB_CURRENT_CONFIG_INDEX && 953 ed->alt_index == USB_CURRENT_ALT_INDEX) 954 alt = ugen_get_alt_index(sc, ed->interface_index); 955 else 956 alt = ed->alt_index; 957 edesc = usbd_find_edesc(cdesc, ed->interface_index, 958 alt, ed->endpoint_index); 959 if (!edesc) { 960 free(cdesc, M_TEMP); 961 return (EINVAL); 962 } 963 ed->desc = *edesc; 964 free(cdesc, M_TEMP); 965 break; 966 case USB_GET_FULL_DESC: 967 { 968 int len; 969 struct iovec iov; 970 struct uio uio; 971 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 972 int error; 973 974 cdesc = ugen_get_cdesc(sc, fd->config_index, &len); 975 if (len > fd->size) 976 len = fd->size; 977 iov.iov_base = (caddr_t)fd->data; 978 iov.iov_len = len; 979 uio.uio_iov = &iov; 980 uio.uio_iovcnt = 1; 981 uio.uio_resid = len; 982 uio.uio_offset = 0; 983 uio.uio_segflg = UIO_USERSPACE; 984 uio.uio_rw = UIO_READ; 985 uio.uio_procp = p; 986 error = uiomove((caddr_t)cdesc, len, &uio); 987 free(cdesc, M_TEMP); 988 return (error); 989 } 990 case USB_GET_STRING_DESC: 991 si = (struct usb_string_desc *)addr; 992 r = usbd_get_string_desc(sc->sc_udev, si->string_index, 993 si->language_id, &si->desc); 994 if (r != USBD_NORMAL_COMPLETION) 995 return (EINVAL); 996 break; 997 case USB_DO_REQUEST: 998 { 999 struct usb_ctl_request *ur = (void *)addr; 1000 int len = UGETW(ur->request.wLength); 1001 struct iovec iov; 1002 struct uio uio; 1003 void *ptr = 0; 1004 usbd_status r; 1005 int error = 0; 1006 1007 if (!(flag & FWRITE)) 1008 return (EPERM); 1009 /* Avoid requests that would damage the bus integrity. */ 1010 if ((ur->request.bmRequestType == UT_WRITE_DEVICE && 1011 ur->request.bRequest == UR_SET_ADDRESS) || 1012 (ur->request.bmRequestType == UT_WRITE_DEVICE && 1013 ur->request.bRequest == UR_SET_CONFIG) || 1014 (ur->request.bmRequestType == UT_WRITE_INTERFACE && 1015 ur->request.bRequest == UR_SET_INTERFACE)) 1016 return (EINVAL); 1017 1018 if (len < 0 || len > 32767) 1019 return (EINVAL); 1020 if (len != 0) { 1021 iov.iov_base = (caddr_t)ur->data; 1022 iov.iov_len = len; 1023 uio.uio_iov = &iov; 1024 uio.uio_iovcnt = 1; 1025 uio.uio_resid = len; 1026 uio.uio_offset = 0; 1027 uio.uio_segflg = UIO_USERSPACE; 1028 uio.uio_rw = 1029 ur->request.bmRequestType & UT_READ ? 1030 UIO_READ : UIO_WRITE; 1031 uio.uio_procp = p; 1032 ptr = malloc(len, M_TEMP, M_WAITOK); 1033 if (uio.uio_rw == UIO_WRITE) { 1034 error = uiomove(ptr, len, &uio); 1035 if (error) 1036 goto ret; 1037 } 1038 } 1039 r = usbd_do_request_flags(sc->sc_udev, &ur->request, 1040 ptr, ur->flags, &ur->actlen); 1041 if (r != USBD_NORMAL_COMPLETION) { 1042 error = EIO; 1043 goto ret; 1044 } 1045 if (len != 0) { 1046 if (uio.uio_rw == UIO_READ) { 1047 error = uiomove(ptr, len, &uio); 1048 if (error) 1049 goto ret; 1050 } 1051 } 1052 ret: 1053 if (ptr) 1054 free(ptr, M_TEMP); 1055 return (error); 1056 } 1057 case USB_GET_DEVICEINFO: 1058 usbd_fill_deviceinfo(sc->sc_udev, 1059 (struct usb_device_info *)addr); 1060 break; 1061 default: 1062 return (EINVAL); 1063 } 1064 return (0); 1065 } 1066 1067 int 1068 ugenioctl(dev, cmd, addr, flag, p) 1069 dev_t dev; 1070 u_long cmd; 1071 caddr_t addr; 1072 int flag; 1073 struct proc *p; 1074 { 1075 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1076 int endpt = UGENENDPOINT(dev); 1077 int error; 1078 1079 sc->sc_refcnt++; 1080 error = ugen_do_ioctl(sc, endpt, cmd, addr, flag, p); 1081 if (--sc->sc_refcnt < 0) 1082 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1083 return (error); 1084 } 1085 1086 int 1087 ugenpoll(dev, events, p) 1088 dev_t dev; 1089 int events; 1090 struct proc *p; 1091 { 1092 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1093 struct ugen_endpoint *sce; 1094 int revents = 0; 1095 int s; 1096 1097 if (sc->sc_dying) 1098 return (EIO); 1099 1100 /* XXX always IN */ 1101 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 1102 #ifdef DIAGNOSTIC 1103 if (!sce->edesc) { 1104 printf("ugenwrite: no edesc\n"); 1105 return (EIO); 1106 } 1107 if (!sce->pipeh) { 1108 printf("ugenpoll: no pipe\n"); 1109 return (EIO); 1110 } 1111 #endif 1112 s = splusb(); 1113 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 1114 case UE_INTERRUPT: 1115 if (events & (POLLIN | POLLRDNORM)) { 1116 if (sce->q.c_cc > 0) 1117 revents |= events & (POLLIN | POLLRDNORM); 1118 else 1119 selrecord(p, &sce->rsel); 1120 } 1121 break; 1122 case UE_BULK: 1123 /* 1124 * We have no easy way of determining if a read will 1125 * yield any data or a write will happen. 1126 * Pretend they will. 1127 */ 1128 revents |= events & 1129 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 1130 break; 1131 default: 1132 break; 1133 } 1134 splx(s); 1135 return (revents); 1136 } 1137 1138 #if defined(__FreeBSD__) 1139 DEV_DRIVER_MODULE(ugen, uhub, ugen_driver, ugen_devclass, ugen_cdevsw, usbd_driver_load, 0); 1140 #endif 1141
Indexes created Fri Sep 26 20:09:58 GMT 2025