ugen.c revision 1.26
1 /* $NetBSD: ugen.c,v 1.26 1999/10/28 07:28:51 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 UGEN_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 struct ugen_softc *sc; 255 int unit = UGENUNIT(dev); 256 int endpt = UGENENDPOINT(dev); 257 usb_endpoint_descriptor_t *edesc; 258 struct ugen_endpoint *sce; 259 int dir, isize; 260 usbd_status r; 261 262 USB_GET_SC_OPEN(ugen, unit, sc); 263 DPRINTFN(5, ("ugenopen: flag=%d, mode=%d, unit=%d endpt=%d\n", 264 flag, mode, unit, endpt)); 265 266 if (sc->sc_dying) 267 return (ENXIO); 268 269 if (sc->sc_is_open[endpt]) 270 return (EBUSY); 271 272 if (endpt == USB_CONTROL_ENDPOINT) { 273 sc->sc_is_open[USB_CONTROL_ENDPOINT] = 1; 274 return (0); 275 } 276 /* Make sure there are pipes for all directions. */ 277 for (dir = OUT; dir <= IN; dir++) { 278 if (flag & (dir == OUT ? FWRITE : FREAD)) { 279 sce = &sc->sc_endpoints[endpt][dir]; 280 if (sce == 0 || sce->edesc == 0) 281 return (ENXIO); 282 } 283 } 284 285 /* Actually open the pipes. */ 286 /* XXX Should back out properly if it fails. */ 287 for (dir = OUT; dir <= IN; dir++) { 288 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 289 continue; 290 sce = &sc->sc_endpoints[endpt][dir]; 291 sce->state = 0; 292 sce->timeout = USBD_NO_TIMEOUT; 293 DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n", 294 sc, endpt, dir, sce)); 295 edesc = sce->edesc; 296 switch (edesc->bmAttributes & UE_XFERTYPE) { 297 case UE_INTERRUPT: 298 isize = UGETW(edesc->wMaxPacketSize); 299 if (isize == 0) /* shouldn't happen */ 300 return (EINVAL); 301 sce->ibuf = malloc(isize, M_USBDEV, M_WAITOK); 302 DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n", 303 endpt, isize)); 304 if (clalloc(&sce->q, UGEN_IBSIZE, 0) == -1) 305 return (ENOMEM); 306 r = usbd_open_pipe_intr(sce->iface, 307 edesc->bEndpointAddress, 308 USBD_SHORT_XFER_OK, &sce->pipeh, sce, 309 sce->ibuf, isize, ugenintr); 310 if (r != USBD_NORMAL_COMPLETION) { 311 free(sce->ibuf, M_USBDEV); 312 clfree(&sce->q); 313 return (EIO); 314 } 315 DPRINTFN(5, ("ugenopen: interrupt open done\n")); 316 break; 317 case UE_BULK: 318 r = usbd_open_pipe(sce->iface, 319 edesc->bEndpointAddress, 0, 320 &sce->pipeh); 321 if (r != USBD_NORMAL_COMPLETION) 322 return (EIO); 323 break; 324 case UE_CONTROL: 325 case UE_ISOCHRONOUS: 326 return (EINVAL); 327 } 328 } 329 sc->sc_is_open[endpt] = 1; 330 return (0); 331 } 332 333 int 334 ugenclose(dev, flag, mode, p) 335 dev_t dev; 336 int flag; 337 int mode; 338 struct proc *p; 339 { 340 int endpt = UGENENDPOINT(dev); 341 struct ugen_softc *sc; 342 struct ugen_endpoint *sce; 343 int dir; 344 345 USB_GET_SC(ugen, UGENUNIT(dev), sc); 346 DPRINTFN(5, ("ugenclose: flag=%d, mode=%d, unit=%d, endpt=%d\n", 347 flag, mode, UGENUNIT(dev), endpt)); 348 349 #ifdef DIAGNOSTIC 350 if (!sc->sc_is_open[endpt]) { 351 printf("ugenclose: not open\n"); 352 return (EINVAL); 353 } 354 #endif 355 356 if (endpt == USB_CONTROL_ENDPOINT) { 357 DPRINTFN(5, ("ugenclose: close control\n")); 358 sc->sc_is_open[endpt] = 0; 359 return (0); 360 } 361 362 for (dir = OUT; dir <= IN; dir++) { 363 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 364 continue; 365 sce = &sc->sc_endpoints[endpt][dir]; 366 if (!sce || !sce->pipeh) 367 continue; 368 DPRINTFN(5, ("ugenclose: endpt=%d dir=%d sce=%p\n", 369 endpt, dir, sce)); 370 371 usbd_abort_pipe(sce->pipeh); 372 usbd_close_pipe(sce->pipeh); 373 sce->pipeh = 0; 374 375 if (sce->ibuf) { 376 free(sce->ibuf, M_USBDEV); 377 sce->ibuf = 0; 378 clfree(&sce->q); 379 } 380 } 381 sc->sc_is_open[endpt] = 0; 382 383 return (0); 384 } 385 386 int 387 ugen_do_read(sc, endpt, uio, flag) 388 struct ugen_softc *sc; 389 int endpt; 390 struct uio *uio; 391 int flag; 392 { 393 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 394 u_int32_t n, tn; 395 char buf[UGEN_BBSIZE]; 396 usbd_request_handle reqh; 397 usbd_status r; 398 int s; 399 int error = 0; 400 u_char buffer[UGEN_CHUNK]; 401 402 #ifdef __NetBSD__ 403 DPRINTFN(5, ("ugenread: %d:%d\n", sc->sc_dev.dv_unit, endpt)); 404 #endif 405 406 if (sc->sc_dying) 407 return (EIO); 408 409 if (endpt == USB_CONTROL_ENDPOINT) 410 return (ENODEV); 411 412 #ifdef DIAGNOSTIC 413 if (!sce->edesc) { 414 printf("ugenread: no edesc\n"); 415 return (EIO); 416 } 417 if (!sce->pipeh) { 418 printf("ugenread: no pipe\n"); 419 return (EIO); 420 } 421 #endif 422 423 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 424 case UE_INTERRUPT: 425 /* Block until activity occured. */ 426 s = splusb(); 427 while (sce->q.c_cc == 0) { 428 if (flag & IO_NDELAY) { 429 splx(s); 430 return (EWOULDBLOCK); 431 } 432 sce->state |= UGEN_ASLP; 433 DPRINTFN(5, ("ugenread: sleep on %p\n", sc)); 434 error = tsleep(sce, PZERO | PCATCH, "ugenri", 0); 435 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 436 if (sc->sc_dying) 437 error = EIO; 438 if (error) { 439 sce->state &= ~UGEN_ASLP; 440 break; 441 } 442 } 443 splx(s); 444 445 /* Transfer as many chunks as possible. */ 446 while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) { 447 n = min(sce->q.c_cc, uio->uio_resid); 448 if (n > sizeof(buffer)) 449 n = sizeof(buffer); 450 451 /* Remove a small chunk from the input queue. */ 452 q_to_b(&sce->q, buffer, n); 453 DPRINTFN(5, ("ugenread: got %d chars\n", n)); 454 455 /* Copy the data to the user process. */ 456 error = uiomove(buffer, n, uio); 457 if (error) 458 break; 459 } 460 break; 461 case UE_BULK: 462 reqh = usbd_alloc_request(sc->sc_udev); 463 if (reqh == 0) 464 return (ENOMEM); 465 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 466 DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n)); 467 tn = n; 468 r = usbd_bulk_transfer( 469 reqh, sce->pipeh, 470 sce->state & UGEN_SHORT_OK ? 471 USBD_SHORT_XFER_OK : 0, 472 sce->timeout, buf, &tn, "ugenrb"); 473 if (r != USBD_NORMAL_COMPLETION) { 474 if (r == USBD_INTERRUPTED) 475 error = EINTR; 476 else if (r == USBD_TIMEOUT) 477 error = ETIMEDOUT; 478 else 479 error = EIO; 480 break; 481 } 482 DPRINTFN(1, ("ugenread: got %d bytes\n", tn)); 483 error = uiomove(buf, tn, uio); 484 if (error || tn < n) 485 break; 486 } 487 usbd_free_request(reqh); 488 break; 489 default: 490 return (ENXIO); 491 } 492 return (error); 493 } 494 495 int 496 ugenread(dev, uio, flag) 497 dev_t dev; 498 struct uio *uio; 499 int flag; 500 { 501 int endpt = UGENENDPOINT(dev); 502 struct ugen_softc *sc; 503 int error; 504 505 USB_GET_SC(ugen, UGENUNIT(dev), sc); 506 sc->sc_refcnt++; 507 error = ugen_do_read(sc, endpt, uio, flag); 508 if (--sc->sc_refcnt < 0) 509 usb_detach_wakeup(USBDEV(sc->sc_dev)); 510 return (error); 511 } 512 513 int 514 ugen_do_write(sc, endpt, uio, flag) 515 struct ugen_softc *sc; 516 int endpt; 517 struct uio *uio; 518 int flag; 519 { 520 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT]; 521 u_int32_t n; 522 int error = 0; 523 char buf[UGEN_BBSIZE]; 524 usbd_request_handle reqh; 525 usbd_status r; 526 527 #ifdef __NetBSD__ 528 DPRINTFN(5, ("ugenwrite: %d:%d\n", sc->sc_dev.dv_unit, endpt)); 529 #endif 530 531 if (sc->sc_dying) 532 return (EIO); 533 534 if (endpt == USB_CONTROL_ENDPOINT) 535 return (ENODEV); 536 537 #ifdef DIAGNOSTIC 538 if (!sce->edesc) { 539 printf("ugenwrite: no edesc\n"); 540 return (EIO); 541 } 542 if (!sce->pipeh) { 543 printf("ugenwrite: no pipe\n"); 544 return (EIO); 545 } 546 #endif 547 548 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 549 case UE_BULK: 550 reqh = usbd_alloc_request(sc->sc_udev); 551 if (reqh == 0) 552 return (EIO); 553 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 554 error = uiomove(buf, n, uio); 555 if (error) 556 break; 557 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 558 r = usbd_bulk_transfer(reqh, sce->pipeh, 0, 559 sce->timeout, buf, &n,"ugenwb"); 560 if (r != USBD_NORMAL_COMPLETION) { 561 if (r == USBD_INTERRUPTED) 562 error = EINTR; 563 else 564 error = EIO; 565 break; 566 } 567 } 568 usbd_free_request(reqh); 569 break; 570 default: 571 return (ENXIO); 572 } 573 return (error); 574 } 575 576 int 577 ugenwrite(dev, uio, flag) 578 dev_t dev; 579 struct uio *uio; 580 int flag; 581 { 582 int endpt = UGENENDPOINT(dev); 583 struct ugen_softc *sc; 584 int error; 585 586 USB_GET_SC(ugen, UGENUNIT(dev), sc); 587 sc->sc_refcnt++; 588 error = ugen_do_write(sc, endpt, uio, flag); 589 if (--sc->sc_refcnt < 0) 590 usb_detach_wakeup(USBDEV(sc->sc_dev)); 591 return (error); 592 } 593 594 #if defined(__NetBSD__) || defined(__OpenBSD__) 595 int 596 ugen_activate(self, act) 597 device_ptr_t self; 598 enum devact act; 599 { 600 struct ugen_softc *sc = (struct ugen_softc *)self; 601 602 switch (act) { 603 case DVACT_ACTIVATE: 604 return (EOPNOTSUPP); 605 break; 606 607 case DVACT_DEACTIVATE: 608 sc->sc_dying = 1; 609 break; 610 } 611 return (0); 612 } 613 #endif 614 615 USB_DETACH(ugen) 616 { 617 USB_DETACH_START(ugen, sc); 618 struct ugen_endpoint *sce; 619 int i, dir; 620 int s; 621 #if defined(__NetBSD__) || defined(__OpenBSD__) 622 int maj, mn; 623 624 DPRINTF(("ugen_detach: sc=%p flags=%d\n", sc, flags)); 625 #elif defined(__FreeBSD__) 626 DPRINTF(("ugen_detach: sc=%p\n", sc)); 627 #endif 628 629 sc->sc_dying = 1; 630 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 631 for (i = 0; i < USB_MAX_ENDPOINTS; i++) { 632 for (dir = OUT; dir <= IN; dir++) { 633 sce = &sc->sc_endpoints[i][dir]; 634 if (sce && sce->pipeh) 635 usbd_abort_pipe(sce->pipeh); 636 } 637 } 638 639 s = splusb(); 640 if (--sc->sc_refcnt >= 0) { 641 /* Wake everyone */ 642 for (i = 0; i < USB_MAX_ENDPOINTS; i++) 643 wakeup(&sc->sc_endpoints[i][IN]); 644 /* Wait for processes to go away. */ 645 usb_detach_wait(USBDEV(sc->sc_dev)); 646 } 647 splx(s); 648 649 #if defined(__NetBSD__) || defined(__OpenBSD__) 650 /* locate the major number */ 651 for (maj = 0; maj < nchrdev; maj++) 652 if (cdevsw[maj].d_open == ugenopen) 653 break; 654 655 /* Nuke the vnodes for any open instances (calls close). */ 656 mn = self->dv_unit * USB_MAX_ENDPOINTS; 657 vdevgone(maj, mn, mn + USB_MAX_ENDPOINTS - 1, VCHR); 658 #elif defined(__FreeBSD__) 659 /* XXX not implemented yet */ 660 #endif 661 662 return (0); 663 } 664 665 void 666 ugenintr(reqh, addr, status) 667 usbd_request_handle reqh; 668 usbd_private_handle addr; 669 usbd_status status; 670 { 671 struct ugen_endpoint *sce = addr; 672 /*struct ugen_softc *sc = sce->sc;*/ 673 u_int32_t count; 674 u_char *ibuf; 675 676 if (status == USBD_CANCELLED) 677 return; 678 679 if (status != USBD_NORMAL_COMPLETION) { 680 DPRINTF(("ugenintr: status=%d\n", status)); 681 usbd_clear_endpoint_stall_async(sce->pipeh); 682 return; 683 } 684 685 usbd_get_request_status(reqh, 0, 0, &count, 0); 686 ibuf = sce->ibuf; 687 688 DPRINTFN(5, ("ugenintr: reqh=%p status=%d count=%d\n", 689 reqh, status, count)); 690 DPRINTFN(5, (" data = %02x %02x %02x\n", 691 ibuf[0], ibuf[1], ibuf[2])); 692 693 (void)b_to_q(ibuf, count, &sce->q); 694 695 if (sce->state & UGEN_ASLP) { 696 sce->state &= ~UGEN_ASLP; 697 DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); 698 wakeup(sce); 699 } 700 selwakeup(&sce->rsel); 701 } 702 703 usbd_status 704 ugen_set_interface(sc, ifaceidx, altno) 705 struct ugen_softc *sc; 706 int ifaceidx, altno; 707 { 708 usbd_interface_handle iface; 709 usb_endpoint_descriptor_t *ed; 710 usbd_status r; 711 struct ugen_endpoint *sce; 712 u_int8_t niface, nendpt, endptno, endpt; 713 int dir; 714 715 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); 716 717 r = usbd_interface_count(sc->sc_udev, &niface); 718 if (r != USBD_NORMAL_COMPLETION) 719 return (r); 720 if (ifaceidx < 0 || ifaceidx >= niface) 721 return (USBD_INVAL); 722 723 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 724 if (r != USBD_NORMAL_COMPLETION) 725 return (r); 726 r = usbd_endpoint_count(iface, &nendpt); 727 if (r != USBD_NORMAL_COMPLETION) 728 return (r); 729 for (endptno = 0; endptno < nendpt; endptno++) { 730 ed = usbd_interface2endpoint_descriptor(iface,endptno); 731 endpt = ed->bEndpointAddress; 732 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 733 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 734 sce->sc = 0; 735 sce->edesc = 0; 736 sce->iface = 0; 737 } 738 739 /* change setting */ 740 r = usbd_set_interface(iface, altno); 741 if (r != USBD_NORMAL_COMPLETION) 742 return (r); 743 744 r = usbd_endpoint_count(iface, &nendpt); 745 if (r != USBD_NORMAL_COMPLETION) 746 return (r); 747 for (endptno = 0; endptno < nendpt; endptno++) { 748 ed = usbd_interface2endpoint_descriptor(iface,endptno); 749 endpt = ed->bEndpointAddress; 750 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 751 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 752 sce->sc = sc; 753 sce->edesc = ed; 754 sce->iface = iface; 755 } 756 return (0); 757 } 758 759 /* Retrieve a complete descriptor for a certain device and index. */ 760 usb_config_descriptor_t * 761 ugen_get_cdesc(sc, index, lenp) 762 struct ugen_softc *sc; 763 int index; 764 int *lenp; 765 { 766 usb_config_descriptor_t *cdesc, *tdesc, cdescr; 767 int len; 768 usbd_status r; 769 770 if (index == USB_CURRENT_CONFIG_INDEX) { 771 tdesc = usbd_get_config_descriptor(sc->sc_udev); 772 len = UGETW(tdesc->wTotalLength); 773 if (lenp) 774 *lenp = len; 775 cdesc = malloc(len, M_TEMP, M_WAITOK); 776 memcpy(cdesc, tdesc, len); 777 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); 778 } else { 779 r = usbd_get_config_desc(sc->sc_udev, index, &cdescr); 780 if (r != USBD_NORMAL_COMPLETION) 781 return (0); 782 len = UGETW(cdescr.wTotalLength); 783 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); 784 if (lenp) 785 *lenp = len; 786 cdesc = malloc(len, M_TEMP, M_WAITOK); 787 r = usbd_get_config_desc_full(sc->sc_udev, index, cdesc, len); 788 if (r != USBD_NORMAL_COMPLETION) { 789 free(cdesc, M_TEMP); 790 return (0); 791 } 792 } 793 return (cdesc); 794 } 795 796 int 797 ugen_get_alt_index(sc, ifaceidx) 798 struct ugen_softc *sc; 799 int ifaceidx; 800 { 801 usbd_interface_handle iface; 802 usbd_status r; 803 804 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 805 if (r != USBD_NORMAL_COMPLETION) 806 return (-1); 807 return (usbd_get_interface_altindex(iface)); 808 } 809 810 int 811 ugen_do_ioctl(sc, endpt, cmd, addr, flag, p) 812 struct ugen_softc *sc; 813 int endpt; 814 u_long cmd; 815 caddr_t addr; 816 int flag; 817 struct proc *p; 818 { 819 struct ugen_endpoint *sce; 820 usbd_status r; 821 usbd_interface_handle iface; 822 struct usb_config_desc *cd; 823 usb_config_descriptor_t *cdesc; 824 struct usb_interface_desc *id; 825 usb_interface_descriptor_t *idesc; 826 struct usb_endpoint_desc *ed; 827 usb_endpoint_descriptor_t *edesc; 828 struct usb_alt_interface *ai; 829 struct usb_string_desc *si; 830 u_int8_t conf, alt; 831 832 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 833 if (sc->sc_dying) 834 return (EIO); 835 836 switch (cmd) { 837 case FIONBIO: 838 /* All handled in the upper FS layer. */ 839 return (0); 840 case USB_SET_SHORT_XFER: 841 /* This flag only affects read */ 842 if (endpt == USB_CONTROL_ENDPOINT) 843 return (EINVAL); 844 sce = &sc->sc_endpoints[endpt][IN]; 845 #ifdef DIAGNOSTIC 846 if (!sce->pipeh) { 847 printf("ugenioctl: USB_SET_SHORT_XFER, no pipe\n"); 848 return (EIO); 849 } 850 #endif 851 if (*(int *)addr) 852 sce->state |= UGEN_SHORT_OK; 853 else 854 sce->state &= ~UGEN_SHORT_OK; 855 return (0); 856 case USB_SET_TIMEOUT: 857 sce = &sc->sc_endpoints[endpt][IN]; 858 #ifdef DIAGNOSTIC 859 if (!sce->pipeh) { 860 printf("ugenioctl: USB_SET_TIMEOUT, no pipe\n"); 861 return (EIO); 862 } 863 #endif 864 sce->timeout = *(int *)addr; 865 return (0); 866 default: 867 break; 868 } 869 870 if (endpt != USB_CONTROL_ENDPOINT) 871 return (EINVAL); 872 873 switch (cmd) { 874 #ifdef USB_DEBUG 875 case USB_SETDEBUG: 876 ugendebug = *(int *)addr; 877 break; 878 #endif 879 case USB_GET_CONFIG: 880 r = usbd_get_config(sc->sc_udev, &conf); 881 if (r != USBD_NORMAL_COMPLETION) 882 return (EIO); 883 *(int *)addr = conf; 884 break; 885 case USB_SET_CONFIG: 886 if (!(flag & FWRITE)) 887 return (EPERM); 888 r = ugen_set_config(sc, *(int *)addr); 889 if (r != USBD_NORMAL_COMPLETION) 890 return (EIO); 891 break; 892 case USB_GET_ALTINTERFACE: 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 idesc = usbd_get_interface_descriptor(iface); 899 if (!idesc) 900 return (EIO); 901 ai->alt_no = idesc->bAlternateSetting; 902 break; 903 case USB_SET_ALTINTERFACE: 904 if (!(flag & FWRITE)) 905 return (EPERM); 906 ai = (struct usb_alt_interface *)addr; 907 r = usbd_device2interface_handle(sc->sc_udev, 908 ai->interface_index, &iface); 909 if (r != USBD_NORMAL_COMPLETION) 910 return (EINVAL); 911 r = ugen_set_interface(sc, ai->interface_index, ai->alt_no); 912 if (r != USBD_NORMAL_COMPLETION) 913 return (EINVAL); 914 break; 915 case USB_GET_NO_ALT: 916 ai = (struct usb_alt_interface *)addr; 917 cdesc = ugen_get_cdesc(sc, ai->config_index, 0); 918 if (!cdesc) 919 return (EINVAL); 920 idesc = usbd_find_idesc(cdesc, ai->interface_index, 0); 921 if (!idesc) { 922 free(cdesc, M_TEMP); 923 return (EINVAL); 924 } 925 ai->alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); 926 free(cdesc, M_TEMP); 927 break; 928 case USB_GET_DEVICE_DESC: 929 *(usb_device_descriptor_t *)addr = 930 *usbd_get_device_descriptor(sc->sc_udev); 931 break; 932 case USB_GET_CONFIG_DESC: 933 cd = (struct usb_config_desc *)addr; 934 cdesc = ugen_get_cdesc(sc, cd->config_index, 0); 935 if (!cdesc) 936 return (EINVAL); 937 cd->desc = *cdesc; 938 free(cdesc, M_TEMP); 939 break; 940 case USB_GET_INTERFACE_DESC: 941 id = (struct usb_interface_desc *)addr; 942 cdesc = ugen_get_cdesc(sc, id->config_index, 0); 943 if (!cdesc) 944 return (EINVAL); 945 if (id->config_index == USB_CURRENT_CONFIG_INDEX && 946 id->alt_index == USB_CURRENT_ALT_INDEX) 947 alt = ugen_get_alt_index(sc, id->interface_index); 948 else 949 alt = id->alt_index; 950 idesc = usbd_find_idesc(cdesc, id->interface_index, alt); 951 if (!idesc) { 952 free(cdesc, M_TEMP); 953 return (EINVAL); 954 } 955 id->desc = *idesc; 956 free(cdesc, M_TEMP); 957 break; 958 case USB_GET_ENDPOINT_DESC: 959 ed = (struct usb_endpoint_desc *)addr; 960 cdesc = ugen_get_cdesc(sc, ed->config_index, 0); 961 if (!cdesc) 962 return (EINVAL); 963 if (ed->config_index == USB_CURRENT_CONFIG_INDEX && 964 ed->alt_index == USB_CURRENT_ALT_INDEX) 965 alt = ugen_get_alt_index(sc, ed->interface_index); 966 else 967 alt = ed->alt_index; 968 edesc = usbd_find_edesc(cdesc, ed->interface_index, 969 alt, ed->endpoint_index); 970 if (!edesc) { 971 free(cdesc, M_TEMP); 972 return (EINVAL); 973 } 974 ed->desc = *edesc; 975 free(cdesc, M_TEMP); 976 break; 977 case USB_GET_FULL_DESC: 978 { 979 int len; 980 struct iovec iov; 981 struct uio uio; 982 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 983 int error; 984 985 cdesc = ugen_get_cdesc(sc, fd->config_index, &len); 986 if (len > fd->size) 987 len = fd->size; 988 iov.iov_base = (caddr_t)fd->data; 989 iov.iov_len = len; 990 uio.uio_iov = &iov; 991 uio.uio_iovcnt = 1; 992 uio.uio_resid = len; 993 uio.uio_offset = 0; 994 uio.uio_segflg = UIO_USERSPACE; 995 uio.uio_rw = UIO_READ; 996 uio.uio_procp = p; 997 error = uiomove(cdesc, len, &uio); 998 free(cdesc, M_TEMP); 999 return (error); 1000 } 1001 case USB_GET_STRING_DESC: 1002 si = (struct usb_string_desc *)addr; 1003 r = usbd_get_string_desc(sc->sc_udev, si->string_index, 1004 si->language_id, &si->desc); 1005 if (r != USBD_NORMAL_COMPLETION) 1006 return (EINVAL); 1007 break; 1008 case USB_DO_REQUEST: 1009 { 1010 struct usb_ctl_request *ur = (void *)addr; 1011 int len = UGETW(ur->request.wLength); 1012 struct iovec iov; 1013 struct uio uio; 1014 void *ptr = 0; 1015 usbd_status r; 1016 int error = 0; 1017 1018 if (!(flag & FWRITE)) 1019 return (EPERM); 1020 /* Avoid requests that would damage the bus integrity. */ 1021 if ((ur->request.bmRequestType == UT_WRITE_DEVICE && 1022 ur->request.bRequest == UR_SET_ADDRESS) || 1023 (ur->request.bmRequestType == UT_WRITE_DEVICE && 1024 ur->request.bRequest == UR_SET_CONFIG) || 1025 (ur->request.bmRequestType == UT_WRITE_INTERFACE && 1026 ur->request.bRequest == UR_SET_INTERFACE)) 1027 return (EINVAL); 1028 1029 if (len < 0 || len > 32767) 1030 return (EINVAL); 1031 if (len != 0) { 1032 iov.iov_base = (caddr_t)ur->data; 1033 iov.iov_len = len; 1034 uio.uio_iov = &iov; 1035 uio.uio_iovcnt = 1; 1036 uio.uio_resid = len; 1037 uio.uio_offset = 0; 1038 uio.uio_segflg = UIO_USERSPACE; 1039 uio.uio_rw = 1040 ur->request.bmRequestType & UT_READ ? 1041 UIO_READ : UIO_WRITE; 1042 uio.uio_procp = p; 1043 ptr = malloc(len, M_TEMP, M_WAITOK); 1044 if (uio.uio_rw == UIO_WRITE) { 1045 error = uiomove(ptr, len, &uio); 1046 if (error) 1047 goto ret; 1048 } 1049 } 1050 r = usbd_do_request_flags(sc->sc_udev, &ur->request, 1051 ptr, ur->flags, &ur->actlen); 1052 if (r != USBD_NORMAL_COMPLETION) { 1053 error = EIO; 1054 goto ret; 1055 } 1056 if (len != 0) { 1057 if (uio.uio_rw == UIO_READ) { 1058 error = uiomove(ptr, len, &uio); 1059 if (error) 1060 goto ret; 1061 } 1062 } 1063 ret: 1064 if (ptr) 1065 free(ptr, M_TEMP); 1066 return (error); 1067 } 1068 case USB_GET_DEVICEINFO: 1069 usbd_fill_deviceinfo(sc->sc_udev, 1070 (struct usb_device_info *)addr); 1071 break; 1072 default: 1073 return (EINVAL); 1074 } 1075 return (0); 1076 } 1077 1078 int 1079 ugenioctl(dev, cmd, addr, flag, p) 1080 dev_t dev; 1081 u_long cmd; 1082 caddr_t addr; 1083 int flag; 1084 struct proc *p; 1085 { 1086 int endpt = UGENENDPOINT(dev); 1087 struct ugen_softc *sc; 1088 int error; 1089 1090 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1091 sc->sc_refcnt++; 1092 error = ugen_do_ioctl(sc, endpt, cmd, addr, flag, p); 1093 if (--sc->sc_refcnt < 0) 1094 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1095 return (error); 1096 } 1097 1098 int 1099 ugenpoll(dev, events, p) 1100 dev_t dev; 1101 int events; 1102 struct proc *p; 1103 { 1104 struct ugen_softc *sc; 1105 struct ugen_endpoint *sce; 1106 int revents = 0; 1107 int s; 1108 1109 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1110 if (sc->sc_dying) 1111 return (EIO); 1112 1113 /* XXX always IN */ 1114 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 1115 #ifdef DIAGNOSTIC 1116 if (!sce->edesc) { 1117 printf("ugenwrite: no edesc\n"); 1118 return (EIO); 1119 } 1120 if (!sce->pipeh) { 1121 printf("ugenpoll: no pipe\n"); 1122 return (EIO); 1123 } 1124 #endif 1125 s = splusb(); 1126 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 1127 case UE_INTERRUPT: 1128 if (events & (POLLIN | POLLRDNORM)) { 1129 if (sce->q.c_cc > 0) 1130 revents |= events & (POLLIN | POLLRDNORM); 1131 else 1132 selrecord(p, &sce->rsel); 1133 } 1134 break; 1135 case UE_BULK: 1136 /* 1137 * We have no easy way of determining if a read will 1138 * yield any data or a write will happen. 1139 * Pretend they will. 1140 */ 1141 revents |= events & 1142 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 1143 break; 1144 default: 1145 break; 1146 } 1147 splx(s); 1148 return (revents); 1149 } 1150 1151 #if defined(__FreeBSD__) 1152 DEV_DRIVER_MODULE(ugen, uhub, ugen_driver, ugen_devclass, ugen_cdevsw, usbd_driver_load, 0); 1153 #endif 1154
Indexes created Thu Sep 25 16:09:42 GMT 2025