ugen.c revision 1.30
1 /* $NetBSD: ugen.c,v 1.30 1999/11/18 23:32:27 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 char devinfo[1024]; 172 usbd_status err; 173 int conf; 174 175 usbd_devinfo(uaa->device, 0, devinfo); 176 USB_ATTACH_SETUP; 177 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 178 179 sc->sc_udev = uaa->device; 180 conf = 1; /* XXX should not hard code 1 */ 181 err = ugen_set_config(sc, conf); 182 if (err) { 183 printf("%s: setting configuration %d failed\n", 184 USBDEVNAME(sc->sc_dev), conf); 185 sc->sc_dying = 1; 186 USB_ATTACH_ERROR_RETURN; 187 } 188 189 #ifdef __FreeBSD__ 190 { 191 static int global_init_done = 0; 192 if (!global_init_done) { 193 cdevsw_add(&ugen_cdevsw); 194 global_init_done = 1; 195 } 196 } 197 #endif 198 199 USB_ATTACH_SUCCESS_RETURN; 200 } 201 202 static int 203 ugen_set_config(sc, configno) 204 struct ugen_softc *sc; 205 int configno; 206 { 207 usbd_device_handle dev = sc->sc_udev; 208 usbd_interface_handle iface; 209 usb_endpoint_descriptor_t *ed; 210 struct ugen_endpoint *sce; 211 u_int8_t niface, nendpt; 212 int ifaceno, endptno, endpt; 213 usbd_status err; 214 int dir; 215 216 DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n", 217 USBDEVNAME(sc->sc_dev), configno, sc)); 218 if (usbd_get_config_descriptor(dev)->bConfigurationValue != configno) { 219 /* Avoid setting the current value. */ 220 err = usbd_set_config_no(dev, configno, 0); 221 if (err) 222 return (err); 223 } 224 225 err = usbd_interface_count(dev, &niface); 226 if (err) 227 return (err); 228 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints); 229 for (ifaceno = 0; ifaceno < niface; ifaceno++) { 230 DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno)); 231 err = usbd_device2interface_handle(dev, ifaceno, &iface); 232 if (err) 233 return (err); 234 err = usbd_endpoint_count(iface, &nendpt); 235 if (err) 236 return (err); 237 for (endptno = 0; endptno < nendpt; endptno++) { 238 ed = usbd_interface2endpoint_descriptor(iface,endptno); 239 endpt = ed->bEndpointAddress; 240 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 241 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 242 DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x" 243 "(%d,%d), sce=%p\n", 244 endptno, endpt, UE_GET_ADDR(endpt), 245 UE_GET_DIR(endpt), sce)); 246 sce->sc = sc; 247 sce->edesc = ed; 248 sce->iface = iface; 249 } 250 } 251 return (USBD_NORMAL_COMPLETION); 252 } 253 254 int 255 ugenopen(dev, flag, mode, p) 256 dev_t dev; 257 int flag; 258 int mode; 259 struct proc *p; 260 { 261 struct ugen_softc *sc; 262 int unit = UGENUNIT(dev); 263 int endpt = UGENENDPOINT(dev); 264 usb_endpoint_descriptor_t *edesc; 265 struct ugen_endpoint *sce; 266 int dir, isize; 267 usbd_status err; 268 269 USB_GET_SC_OPEN(ugen, unit, sc); 270 271 DPRINTFN(5, ("ugenopen: flag=%d, mode=%d, unit=%d endpt=%d\n", 272 flag, mode, unit, endpt)); 273 274 if (sc == NULL || sc->sc_dying) 275 return (ENXIO); 276 277 if (sc->sc_is_open[endpt]) 278 return (EBUSY); 279 280 if (endpt == USB_CONTROL_ENDPOINT) { 281 sc->sc_is_open[USB_CONTROL_ENDPOINT] = 1; 282 return (0); 283 } 284 /* Make sure there are pipes for all directions. */ 285 for (dir = OUT; dir <= IN; dir++) { 286 if (flag & (dir == OUT ? FWRITE : FREAD)) { 287 sce = &sc->sc_endpoints[endpt][dir]; 288 if (sce == 0 || sce->edesc == 0) 289 return (ENXIO); 290 } 291 } 292 293 /* Actually open the pipes. */ 294 /* XXX Should back out properly if it fails. */ 295 for (dir = OUT; dir <= IN; dir++) { 296 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 297 continue; 298 sce = &sc->sc_endpoints[endpt][dir]; 299 sce->state = 0; 300 sce->timeout = USBD_NO_TIMEOUT; 301 DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n", 302 sc, endpt, dir, sce)); 303 edesc = sce->edesc; 304 switch (edesc->bmAttributes & UE_XFERTYPE) { 305 case UE_INTERRUPT: 306 isize = UGETW(edesc->wMaxPacketSize); 307 if (isize == 0) /* shouldn't happen */ 308 return (EINVAL); 309 sce->ibuf = malloc(isize, M_USBDEV, M_WAITOK); 310 DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n", 311 endpt, isize)); 312 if (clalloc(&sce->q, UGEN_IBSIZE, 0) == -1) 313 return (ENOMEM); 314 err = usbd_open_pipe_intr(sce->iface, 315 edesc->bEndpointAddress, 316 USBD_SHORT_XFER_OK, &sce->pipeh, sce, 317 sce->ibuf, isize, ugenintr); 318 if (err) { 319 free(sce->ibuf, M_USBDEV); 320 clfree(&sce->q); 321 return (EIO); 322 } 323 DPRINTFN(5, ("ugenopen: interrupt open done\n")); 324 break; 325 case UE_BULK: 326 err = usbd_open_pipe(sce->iface, 327 edesc->bEndpointAddress, 0, &sce->pipeh); 328 if (err) 329 return (EIO); 330 break; 331 case UE_CONTROL: 332 case UE_ISOCHRONOUS: 333 return (EINVAL); 334 } 335 } 336 sc->sc_is_open[endpt] = 1; 337 return (0); 338 } 339 340 int 341 ugenclose(dev, flag, mode, p) 342 dev_t dev; 343 int flag; 344 int mode; 345 struct proc *p; 346 { 347 int endpt = UGENENDPOINT(dev); 348 struct ugen_softc *sc; 349 struct ugen_endpoint *sce; 350 int dir; 351 352 USB_GET_SC(ugen, UGENUNIT(dev), sc); 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 == NULL || sce->pipeh == NULL) 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 = NULL; 382 383 if (sce->ibuf != NULL) { 384 free(sce->ibuf, M_USBDEV); 385 sce->ibuf = NULL; 386 clfree(&sce->q); 387 388 } 389 } 390 sc->sc_is_open[endpt] = 0; 391 392 return (0); 393 } 394 395 static int 396 ugen_do_read(sc, endpt, uio, flag) 397 struct ugen_softc *sc; 398 int endpt; 399 struct uio *uio; 400 int flag; 401 { 402 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 403 u_int32_t n, tn; 404 char buf[UGEN_BBSIZE]; 405 usbd_xfer_handle xfer; 406 usbd_status err; 407 int s; 408 int error = 0; 409 u_char buffer[UGEN_CHUNK]; 410 411 #ifdef __NetBSD__ 412 DPRINTFN(5, ("ugenread: %d:%d\n", sc->sc_dev.dv_unit, endpt)); 413 #endif 414 415 if (sc->sc_dying) 416 return (EIO); 417 418 if (endpt == USB_CONTROL_ENDPOINT) 419 return (ENODEV); 420 421 #ifdef DIAGNOSTIC 422 if (sce->edesc == NULL) { 423 printf("ugenread: no edesc\n"); 424 return (EIO); 425 } 426 if (sce->pipeh == NULL) { 427 printf("ugenread: no pipe\n"); 428 return (EIO); 429 } 430 #endif 431 432 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 433 case UE_INTERRUPT: 434 /* Block until activity occured. */ 435 s = splusb(); 436 while (sce->q.c_cc == 0) { 437 if (flag & IO_NDELAY) { 438 splx(s); 439 return (EWOULDBLOCK); 440 } 441 sce->state |= UGEN_ASLP; 442 DPRINTFN(5, ("ugenread: sleep on %p\n", sc)); 443 error = tsleep(sce, PZERO | PCATCH, "ugenri", 0); 444 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 445 if (sc->sc_dying) 446 error = EIO; 447 if (error) { 448 sce->state &= ~UGEN_ASLP; 449 break; 450 } 451 } 452 splx(s); 453 454 /* Transfer as many chunks as possible. */ 455 while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) { 456 n = min(sce->q.c_cc, uio->uio_resid); 457 if (n > sizeof(buffer)) 458 n = sizeof(buffer); 459 460 /* Remove a small chunk from the input queue. */ 461 q_to_b(&sce->q, buffer, n); 462 DPRINTFN(5, ("ugenread: got %d chars\n", n)); 463 464 /* Copy the data to the user process. */ 465 error = uiomove(buffer, n, uio); 466 if (error) 467 break; 468 } 469 break; 470 case UE_BULK: 471 xfer = usbd_alloc_xfer(sc->sc_udev); 472 if (xfer == 0) 473 return (ENOMEM); 474 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 475 DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n)); 476 tn = n; 477 err = usbd_bulk_transfer( 478 xfer, sce->pipeh, 479 sce->state & UGEN_SHORT_OK ? 480 USBD_SHORT_XFER_OK : 0, 481 sce->timeout, buf, &tn, "ugenrb"); 482 if (err) { 483 if (err == USBD_INTERRUPTED) 484 error = EINTR; 485 else if (err == USBD_TIMEOUT) 486 error = ETIMEDOUT; 487 else 488 error = EIO; 489 break; 490 } 491 DPRINTFN(1, ("ugenread: got %d bytes\n", tn)); 492 error = uiomove(buf, tn, uio); 493 if (error || tn < n) 494 break; 495 } 496 usbd_free_xfer(xfer); 497 break; 498 default: 499 return (ENXIO); 500 } 501 return (error); 502 } 503 504 int 505 ugenread(dev, uio, flag) 506 dev_t dev; 507 struct uio *uio; 508 int flag; 509 { 510 int endpt = UGENENDPOINT(dev); 511 struct ugen_softc *sc; 512 int error; 513 514 USB_GET_SC(ugen, UGENUNIT(dev), sc); 515 516 sc->sc_refcnt++; 517 error = ugen_do_read(sc, endpt, uio, flag); 518 if (--sc->sc_refcnt < 0) 519 usb_detach_wakeup(USBDEV(sc->sc_dev)); 520 return (error); 521 } 522 523 static int 524 ugen_do_write(sc, endpt, uio, flag) 525 struct ugen_softc *sc; 526 int endpt; 527 struct uio *uio; 528 int flag; 529 { 530 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT]; 531 u_int32_t n; 532 int error = 0; 533 char buf[UGEN_BBSIZE]; 534 usbd_xfer_handle xfer; 535 usbd_status err; 536 537 DPRINTFN(5, ("%s: ugenwrite: %d\n", USBDEVNAME(sc->sc_dev), endpt)); 538 539 if (sc->sc_dying) 540 return (EIO); 541 542 if (endpt == USB_CONTROL_ENDPOINT) 543 return (ENODEV); 544 545 #ifdef DIAGNOSTIC 546 if (sce->edesc == NULL) { 547 printf("ugenwrite: no edesc\n"); 548 return (EIO); 549 } 550 if (sce->pipeh == NULL) { 551 printf("ugenwrite: no pipe\n"); 552 return (EIO); 553 } 554 #endif 555 556 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 557 case UE_BULK: 558 xfer = usbd_alloc_xfer(sc->sc_udev); 559 if (xfer == 0) 560 return (EIO); 561 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 562 error = uiomove(buf, n, uio); 563 if (error) 564 break; 565 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 566 err = usbd_bulk_transfer(xfer, sce->pipeh, 0, 567 sce->timeout, buf, &n,"ugenwb"); 568 if (err) { 569 if (err == USBD_INTERRUPTED) 570 error = EINTR; 571 else 572 error = EIO; 573 break; 574 } 575 } 576 usbd_free_xfer(xfer); 577 break; 578 default: 579 return (ENXIO); 580 } 581 return (error); 582 } 583 584 int 585 ugenwrite(dev, uio, flag) 586 dev_t dev; 587 struct uio *uio; 588 int flag; 589 { 590 int endpt = UGENENDPOINT(dev); 591 struct ugen_softc *sc; 592 int error; 593 594 USB_GET_SC(ugen, UGENUNIT(dev), sc); 595 596 sc->sc_refcnt++; 597 error = ugen_do_write(sc, endpt, uio, flag); 598 if (--sc->sc_refcnt < 0) 599 usb_detach_wakeup(USBDEV(sc->sc_dev)); 600 return (error); 601 } 602 603 #if defined(__NetBSD__) || defined(__OpenBSD__) 604 int 605 ugen_activate(self, act) 606 device_ptr_t self; 607 enum devact act; 608 { 609 struct ugen_softc *sc = (struct ugen_softc *)self; 610 611 switch (act) { 612 case DVACT_ACTIVATE: 613 return (EOPNOTSUPP); 614 break; 615 616 case DVACT_DEACTIVATE: 617 sc->sc_dying = 1; 618 break; 619 } 620 return (0); 621 } 622 #endif 623 624 USB_DETACH(ugen) 625 { 626 USB_DETACH_START(ugen, sc); 627 struct ugen_endpoint *sce; 628 int i, dir; 629 int s; 630 #if defined(__NetBSD__) || defined(__OpenBSD__) 631 int maj, mn; 632 633 DPRINTF(("ugen_detach: sc=%p flags=%d\n", sc, flags)); 634 #elif defined(__FreeBSD__) 635 DPRINTF(("ugen_detach: sc=%p\n", sc)); 636 #endif 637 638 sc->sc_dying = 1; 639 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 640 for (i = 0; i < USB_MAX_ENDPOINTS; i++) { 641 for (dir = OUT; dir <= IN; dir++) { 642 sce = &sc->sc_endpoints[i][dir]; 643 if (sce && sce->pipeh) 644 usbd_abort_pipe(sce->pipeh); 645 } 646 } 647 648 s = splusb(); 649 if (--sc->sc_refcnt >= 0) { 650 /* Wake everyone */ 651 for (i = 0; i < USB_MAX_ENDPOINTS; i++) 652 wakeup(&sc->sc_endpoints[i][IN]); 653 /* Wait for processes to go away. */ 654 usb_detach_wait(USBDEV(sc->sc_dev)); 655 } 656 splx(s); 657 658 #if defined(__NetBSD__) || defined(__OpenBSD__) 659 /* locate the major number */ 660 for (maj = 0; maj < nchrdev; maj++) 661 if (cdevsw[maj].d_open == ugenopen) 662 break; 663 664 /* Nuke the vnodes for any open instances (calls close). */ 665 mn = self->dv_unit * USB_MAX_ENDPOINTS; 666 vdevgone(maj, mn, mn + USB_MAX_ENDPOINTS - 1, VCHR); 667 #elif defined(__FreeBSD__) 668 /* XXX not implemented yet */ 669 #endif 670 671 return (0); 672 } 673 674 static void 675 ugenintr(xfer, addr, status) 676 usbd_xfer_handle xfer; 677 usbd_private_handle addr; 678 usbd_status status; 679 { 680 struct ugen_endpoint *sce = addr; 681 /*struct ugen_softc *sc = sce->sc;*/ 682 u_int32_t count; 683 u_char *ibuf; 684 685 if (status == USBD_CANCELLED) 686 return; 687 688 if (status != USBD_NORMAL_COMPLETION) { 689 DPRINTF(("ugenintr: status=%d\n", status)); 690 usbd_clear_endpoint_stall_async(sce->pipeh); 691 return; 692 } 693 694 usbd_get_xfer_status(xfer, 0, 0, &count, 0); 695 ibuf = sce->ibuf; 696 697 DPRINTFN(5, ("ugenintr: xfer=%p status=%d count=%d\n", 698 xfer, status, count)); 699 DPRINTFN(5, (" data = %02x %02x %02x\n", 700 ibuf[0], ibuf[1], ibuf[2])); 701 702 (void)b_to_q(ibuf, count, &sce->q); 703 704 if (sce->state & UGEN_ASLP) { 705 sce->state &= ~UGEN_ASLP; 706 DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); 707 wakeup(sce); 708 } 709 selwakeup(&sce->rsel); 710 } 711 712 static usbd_status 713 ugen_set_interface(sc, ifaceidx, altno) 714 struct ugen_softc *sc; 715 int ifaceidx, altno; 716 { 717 usbd_interface_handle iface; 718 usb_endpoint_descriptor_t *ed; 719 usbd_status err; 720 struct ugen_endpoint *sce; 721 u_int8_t niface, nendpt, endptno, endpt; 722 int dir; 723 724 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); 725 726 err = usbd_interface_count(sc->sc_udev, &niface); 727 if (err) 728 return (err); 729 if (ifaceidx < 0 || ifaceidx >= niface) 730 return (USBD_INVAL); 731 732 err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 733 if (err) 734 return (err); 735 err = usbd_endpoint_count(iface, &nendpt); 736 if (err) 737 return (err); 738 for (endptno = 0; endptno < nendpt; endptno++) { 739 ed = usbd_interface2endpoint_descriptor(iface,endptno); 740 endpt = ed->bEndpointAddress; 741 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 742 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 743 sce->sc = 0; 744 sce->edesc = 0; 745 sce->iface = 0; 746 } 747 748 /* change setting */ 749 err = usbd_set_interface(iface, altno); 750 if (err) 751 return (err); 752 753 err = usbd_endpoint_count(iface, &nendpt); 754 if (err) 755 return (err); 756 for (endptno = 0; endptno < nendpt; endptno++) { 757 ed = usbd_interface2endpoint_descriptor(iface,endptno); 758 endpt = ed->bEndpointAddress; 759 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 760 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 761 sce->sc = sc; 762 sce->edesc = ed; 763 sce->iface = iface; 764 } 765 return (0); 766 } 767 768 /* Retrieve a complete descriptor for a certain device and index. */ 769 static usb_config_descriptor_t * 770 ugen_get_cdesc(sc, index, lenp) 771 struct ugen_softc *sc; 772 int index; 773 int *lenp; 774 { 775 usb_config_descriptor_t *cdesc, *tdesc, cdescr; 776 int len; 777 usbd_status err; 778 779 if (index == USB_CURRENT_CONFIG_INDEX) { 780 tdesc = usbd_get_config_descriptor(sc->sc_udev); 781 len = UGETW(tdesc->wTotalLength); 782 if (lenp) 783 *lenp = len; 784 cdesc = malloc(len, M_TEMP, M_WAITOK); 785 memcpy(cdesc, tdesc, len); 786 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); 787 } else { 788 err = usbd_get_config_desc(sc->sc_udev, index, &cdescr); 789 if (err) 790 return (0); 791 len = UGETW(cdescr.wTotalLength); 792 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); 793 if (lenp) 794 *lenp = len; 795 cdesc = malloc(len, M_TEMP, M_WAITOK); 796 err = usbd_get_config_desc_full(sc->sc_udev, index, cdesc,len); 797 if (err) { 798 free(cdesc, M_TEMP); 799 return (0); 800 } 801 } 802 return (cdesc); 803 } 804 805 static int 806 ugen_get_alt_index(sc, ifaceidx) 807 struct ugen_softc *sc; 808 int ifaceidx; 809 { 810 usbd_interface_handle iface; 811 usbd_status err; 812 813 err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 814 if (err) 815 return (-1); 816 return (usbd_get_interface_altindex(iface)); 817 } 818 819 static int 820 ugen_do_ioctl(sc, endpt, cmd, addr, flag, p) 821 struct ugen_softc *sc; 822 int endpt; 823 u_long cmd; 824 caddr_t addr; 825 int flag; 826 struct proc *p; 827 { 828 struct ugen_endpoint *sce; 829 usbd_status err; 830 usbd_interface_handle iface; 831 struct usb_config_desc *cd; 832 usb_config_descriptor_t *cdesc; 833 struct usb_interface_desc *id; 834 usb_interface_descriptor_t *idesc; 835 struct usb_endpoint_desc *ed; 836 usb_endpoint_descriptor_t *edesc; 837 struct usb_alt_interface *ai; 838 struct usb_string_desc *si; 839 u_int8_t conf, alt; 840 841 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 842 if (sc->sc_dying) 843 return (EIO); 844 845 switch (cmd) { 846 case FIONBIO: 847 /* All handled in the upper FS layer. */ 848 return (0); 849 case USB_SET_SHORT_XFER: 850 /* This flag only affects read */ 851 if (endpt == USB_CONTROL_ENDPOINT) 852 return (EINVAL); 853 sce = &sc->sc_endpoints[endpt][IN]; 854 if (sce == NULL) 855 return (EINVAL); 856 #ifdef DIAGNOSTIC 857 if (sce->pipeh == NULL) { 858 printf("ugenioctl: USB_SET_SHORT_XFER, no pipe\n"); 859 return (EIO); 860 } 861 #endif 862 if (*(int *)addr) 863 sce->state |= UGEN_SHORT_OK; 864 else 865 sce->state &= ~UGEN_SHORT_OK; 866 return (0); 867 case USB_SET_TIMEOUT: 868 sce = &sc->sc_endpoints[endpt][IN]; 869 if (sce == NULL) 870 return (EINVAL); 871 #ifdef DIAGNOSTIC 872 if (sce->pipeh == NULL) { 873 printf("ugenioctl: USB_SET_TIMEOUT, no pipe\n"); 874 return (EIO); 875 } 876 #endif 877 sce->timeout = *(int *)addr; 878 return (0); 879 default: 880 break; 881 } 882 883 if (endpt != USB_CONTROL_ENDPOINT) 884 return (EINVAL); 885 886 switch (cmd) { 887 #ifdef UGEN_DEBUG 888 case USB_SETDEBUG: 889 ugendebug = *(int *)addr; 890 break; 891 #endif 892 case USB_GET_CONFIG: 893 err = usbd_get_config(sc->sc_udev, &conf); 894 if (err) 895 return (EIO); 896 *(int *)addr = conf; 897 break; 898 case USB_SET_CONFIG: 899 if (!(flag & FWRITE)) 900 return (EPERM); 901 err = ugen_set_config(sc, *(int *)addr); 902 if (err) 903 return (EIO); 904 break; 905 case USB_GET_ALTINTERFACE: 906 ai = (struct usb_alt_interface *)addr; 907 err = usbd_device2interface_handle(sc->sc_udev, 908 ai->interface_index, &iface); 909 if (err) 910 return (EINVAL); 911 idesc = usbd_get_interface_descriptor(iface); 912 if (idesc == NULL) 913 return (EIO); 914 ai->alt_no = idesc->bAlternateSetting; 915 break; 916 case USB_SET_ALTINTERFACE: 917 if (!(flag & FWRITE)) 918 return (EPERM); 919 ai = (struct usb_alt_interface *)addr; 920 err = usbd_device2interface_handle(sc->sc_udev, 921 ai->interface_index, &iface); 922 if (err) 923 return (EINVAL); 924 err = ugen_set_interface(sc, ai->interface_index, ai->alt_no); 925 if (err) 926 return (EINVAL); 927 break; 928 case USB_GET_NO_ALT: 929 ai = (struct usb_alt_interface *)addr; 930 cdesc = ugen_get_cdesc(sc, ai->config_index, 0); 931 if (cdesc == NULL) 932 return (EINVAL); 933 idesc = usbd_find_idesc(cdesc, ai->interface_index, 0); 934 if (idesc == NULL) { 935 free(cdesc, M_TEMP); 936 return (EINVAL); 937 } 938 ai->alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); 939 free(cdesc, M_TEMP); 940 break; 941 case USB_GET_DEVICE_DESC: 942 *(usb_device_descriptor_t *)addr = 943 *usbd_get_device_descriptor(sc->sc_udev); 944 break; 945 case USB_GET_CONFIG_DESC: 946 cd = (struct usb_config_desc *)addr; 947 cdesc = ugen_get_cdesc(sc, cd->config_index, 0); 948 if (cdesc == NULL) 949 return (EINVAL); 950 cd->desc = *cdesc; 951 free(cdesc, M_TEMP); 952 break; 953 case USB_GET_INTERFACE_DESC: 954 id = (struct usb_interface_desc *)addr; 955 cdesc = ugen_get_cdesc(sc, id->config_index, 0); 956 if (cdesc == NULL) 957 return (EINVAL); 958 if (id->config_index == USB_CURRENT_CONFIG_INDEX && 959 id->alt_index == USB_CURRENT_ALT_INDEX) 960 alt = ugen_get_alt_index(sc, id->interface_index); 961 else 962 alt = id->alt_index; 963 idesc = usbd_find_idesc(cdesc, id->interface_index, alt); 964 if (idesc == NULL) { 965 free(cdesc, M_TEMP); 966 return (EINVAL); 967 } 968 id->desc = *idesc; 969 free(cdesc, M_TEMP); 970 break; 971 case USB_GET_ENDPOINT_DESC: 972 ed = (struct usb_endpoint_desc *)addr; 973 cdesc = ugen_get_cdesc(sc, ed->config_index, 0); 974 if (cdesc == NULL) 975 return (EINVAL); 976 if (ed->config_index == USB_CURRENT_CONFIG_INDEX && 977 ed->alt_index == USB_CURRENT_ALT_INDEX) 978 alt = ugen_get_alt_index(sc, ed->interface_index); 979 else 980 alt = ed->alt_index; 981 edesc = usbd_find_edesc(cdesc, ed->interface_index, 982 alt, ed->endpoint_index); 983 if (edesc == NULL) { 984 free(cdesc, M_TEMP); 985 return (EINVAL); 986 } 987 ed->desc = *edesc; 988 free(cdesc, M_TEMP); 989 break; 990 case USB_GET_FULL_DESC: 991 { 992 int len; 993 struct iovec iov; 994 struct uio uio; 995 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 996 int error; 997 998 cdesc = ugen_get_cdesc(sc, fd->config_index, &len); 999 if (len > fd->size) 1000 len = fd->size; 1001 iov.iov_base = (caddr_t)fd->data; 1002 iov.iov_len = len; 1003 uio.uio_iov = &iov; 1004 uio.uio_iovcnt = 1; 1005 uio.uio_resid = len; 1006 uio.uio_offset = 0; 1007 uio.uio_segflg = UIO_USERSPACE; 1008 uio.uio_rw = UIO_READ; 1009 uio.uio_procp = p; 1010 error = uiomove((void *)cdesc, len, &uio); 1011 free(cdesc, M_TEMP); 1012 return (error); 1013 } 1014 case USB_GET_STRING_DESC: 1015 si = (struct usb_string_desc *)addr; 1016 err = usbd_get_string_desc(sc->sc_udev, si->string_index, 1017 si->language_id, &si->desc); 1018 if (err) 1019 return (EINVAL); 1020 break; 1021 case USB_DO_REQUEST: 1022 { 1023 struct usb_ctl_request *ur = (void *)addr; 1024 int len = UGETW(ur->request.wLength); 1025 struct iovec iov; 1026 struct uio uio; 1027 void *ptr = 0; 1028 usbd_status err; 1029 int error = 0; 1030 1031 if (!(flag & FWRITE)) 1032 return (EPERM); 1033 /* Avoid requests that would damage the bus integrity. */ 1034 if ((ur->request.bmRequestType == UT_WRITE_DEVICE && 1035 ur->request.bRequest == UR_SET_ADDRESS) || 1036 (ur->request.bmRequestType == UT_WRITE_DEVICE && 1037 ur->request.bRequest == UR_SET_CONFIG) || 1038 (ur->request.bmRequestType == UT_WRITE_INTERFACE && 1039 ur->request.bRequest == UR_SET_INTERFACE)) 1040 return (EINVAL); 1041 1042 if (len < 0 || len > 32767) 1043 return (EINVAL); 1044 if (len != 0) { 1045 iov.iov_base = (caddr_t)ur->data; 1046 iov.iov_len = len; 1047 uio.uio_iov = &iov; 1048 uio.uio_iovcnt = 1; 1049 uio.uio_resid = len; 1050 uio.uio_offset = 0; 1051 uio.uio_segflg = UIO_USERSPACE; 1052 uio.uio_rw = 1053 ur->request.bmRequestType & UT_READ ? 1054 UIO_READ : UIO_WRITE; 1055 uio.uio_procp = p; 1056 ptr = malloc(len, M_TEMP, M_WAITOK); 1057 if (uio.uio_rw == UIO_WRITE) { 1058 error = uiomove(ptr, len, &uio); 1059 if (error) 1060 goto ret; 1061 } 1062 } 1063 err = usbd_do_request_flags(sc->sc_udev, &ur->request, 1064 ptr, ur->flags, &ur->actlen); 1065 if (err) { 1066 error = EIO; 1067 goto ret; 1068 } 1069 if (len != 0) { 1070 if (uio.uio_rw == UIO_READ) { 1071 error = uiomove(ptr, len, &uio); 1072 if (error) 1073 goto ret; 1074 } 1075 } 1076 ret: 1077 if (ptr) 1078 free(ptr, M_TEMP); 1079 return (error); 1080 } 1081 case USB_GET_DEVICEINFO: 1082 usbd_fill_deviceinfo(sc->sc_udev, 1083 (struct usb_device_info *)addr); 1084 break; 1085 default: 1086 return (EINVAL); 1087 } 1088 return (0); 1089 } 1090 1091 int 1092 ugenioctl(dev, cmd, addr, flag, p) 1093 dev_t dev; 1094 u_long cmd; 1095 caddr_t addr; 1096 int flag; 1097 struct proc *p; 1098 { 1099 int endpt = UGENENDPOINT(dev); 1100 struct ugen_softc *sc; 1101 int error; 1102 1103 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1104 1105 sc->sc_refcnt++; 1106 error = ugen_do_ioctl(sc, endpt, cmd, addr, flag, p); 1107 if (--sc->sc_refcnt < 0) 1108 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1109 return (error); 1110 } 1111 1112 int 1113 ugenpoll(dev, events, p) 1114 dev_t dev; 1115 int events; 1116 struct proc *p; 1117 { 1118 struct ugen_softc *sc; 1119 struct ugen_endpoint *sce; 1120 int revents = 0; 1121 int s; 1122 1123 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1124 1125 if (sc->sc_dying) 1126 return (EIO); 1127 1128 /* XXX always IN */ 1129 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 1130 if (sce == NULL) 1131 return (EINVAL); 1132 #ifdef DIAGNOSTIC 1133 if (!sce->edesc) { 1134 printf("ugenwrite: no edesc\n"); 1135 return (EIO); 1136 } 1137 if (!sce->pipeh) { 1138 printf("ugenpoll: no pipe\n"); 1139 return (EIO); 1140 } 1141 #endif 1142 s = splusb(); 1143 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 1144 case UE_INTERRUPT: 1145 if (events & (POLLIN | POLLRDNORM)) { 1146 if (sce->q.c_cc > 0) 1147 revents |= events & (POLLIN | POLLRDNORM); 1148 else 1149 selrecord(p, &sce->rsel); 1150 } 1151 break; 1152 case UE_BULK: 1153 /* 1154 * We have no easy way of determining if a read will 1155 * yield any data or a write will happen. 1156 * Pretend they will. 1157 */ 1158 revents |= events & 1159 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 1160 break; 1161 default: 1162 break; 1163 } 1164 splx(s); 1165 return (revents); 1166 } 1167 1168 #if defined(__FreeBSD__) 1169 DRIVER_MODULE(ugen, uhub, ugen_driver, ugen_devclass, usbd_driver_load, 0); 1170 #endif 1171
Indexes created Thu Sep 25 16:09:42 GMT 2025