ugen.c revision 1.28
1 /* $NetBSD: ugen.c,v 1.28 1999/11/12 00:34:57 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 static void ugenintr __P((usbd_xfer_handle xfer, usbd_private_handle addr, 144 usbd_status status)); 145 146 static int ugen_do_read __P((struct ugen_softc *, int, struct uio *, int)); 147 static int ugen_do_write __P((struct ugen_softc *, int, struct uio *, int)); 148 static int ugen_do_ioctl __P((struct ugen_softc *, int, u_long, 149 caddr_t, int, struct proc *)); 150 static int ugen_set_config __P((struct ugen_softc *sc, int configno)); 151 static usb_config_descriptor_t *ugen_get_cdesc __P((struct ugen_softc *sc, 152 int index, int *lenp)); 153 static usbd_status ugen_set_interface __P((struct ugen_softc *, int, int)); 154 static 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 err; 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 err = ugen_set_config(sc, conf); 186 if (err) { 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 err; 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 err = usbd_set_config_no(dev, configno, 0); 214 if (err) 215 return (err); 216 } 217 218 err = usbd_interface_count(dev, &niface); 219 if (err) 220 return (err); 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 err = usbd_device2interface_handle(dev, ifaceno, &iface); 225 if (err) 226 return (err); 227 err = usbd_endpoint_count(iface, &nendpt); 228 if (err) 229 return (err); 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 err; 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 err = usbd_open_pipe_intr(sce->iface, 307 edesc->bEndpointAddress, 308 USBD_SHORT_XFER_OK, &sce->pipeh, sce, 309 sce->ibuf, isize, ugenintr); 310 if (err) { 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 err = usbd_open_pipe(sce->iface, 319 edesc->bEndpointAddress, 0, &sce->pipeh); 320 if (err) 321 return (EIO); 322 break; 323 case UE_CONTROL: 324 case UE_ISOCHRONOUS: 325 return (EINVAL); 326 } 327 } 328 sc->sc_is_open[endpt] = 1; 329 return (0); 330 } 331 332 int 333 ugenclose(dev, flag, mode, p) 334 dev_t dev; 335 int flag; 336 int mode; 337 struct proc *p; 338 { 339 int endpt = UGENENDPOINT(dev); 340 struct ugen_softc *sc; 341 struct ugen_endpoint *sce; 342 int dir; 343 344 USB_GET_SC(ugen, UGENUNIT(dev), sc); 345 DPRINTFN(5, ("ugenclose: flag=%d, mode=%d, unit=%d, endpt=%d\n", 346 flag, mode, UGENUNIT(dev), endpt)); 347 348 #ifdef DIAGNOSTIC 349 if (!sc->sc_is_open[endpt]) { 350 printf("ugenclose: not open\n"); 351 return (EINVAL); 352 } 353 #endif 354 355 if (endpt == USB_CONTROL_ENDPOINT) { 356 DPRINTFN(5, ("ugenclose: close control\n")); 357 sc->sc_is_open[endpt] = 0; 358 return (0); 359 } 360 361 for (dir = OUT; dir <= IN; dir++) { 362 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 363 continue; 364 sce = &sc->sc_endpoints[endpt][dir]; 365 if (!sce || !sce->pipeh) 366 continue; 367 DPRINTFN(5, ("ugenclose: endpt=%d dir=%d sce=%p\n", 368 endpt, dir, sce)); 369 370 usbd_abort_pipe(sce->pipeh); 371 usbd_close_pipe(sce->pipeh); 372 sce->pipeh = NULL; 373 374 if (sce->ibuf != NULL) { 375 free(sce->ibuf, M_USBDEV); 376 sce->ibuf = 0; 377 clfree(&sce->q); 378 } 379 } 380 sc->sc_is_open[endpt] = 0; 381 382 return (0); 383 } 384 385 int 386 ugen_do_read(sc, endpt, uio, flag) 387 struct ugen_softc *sc; 388 int endpt; 389 struct uio *uio; 390 int flag; 391 { 392 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 393 u_int32_t n, tn; 394 char buf[UGEN_BBSIZE]; 395 usbd_xfer_handle xfer; 396 usbd_status err; 397 int s; 398 int error = 0; 399 u_char buffer[UGEN_CHUNK]; 400 401 #ifdef __NetBSD__ 402 DPRINTFN(5, ("ugenread: %d:%d\n", sc->sc_dev.dv_unit, endpt)); 403 #endif 404 405 if (sc->sc_dying) 406 return (EIO); 407 408 if (endpt == USB_CONTROL_ENDPOINT) 409 return (ENODEV); 410 411 #ifdef DIAGNOSTIC 412 if (sce->edesc == NULL) { 413 printf("ugenread: no edesc\n"); 414 return (EIO); 415 } 416 if (sce->pipeh == NULL) { 417 printf("ugenread: no pipe\n"); 418 return (EIO); 419 } 420 #endif 421 422 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 423 case UE_INTERRUPT: 424 /* Block until activity occured. */ 425 s = splusb(); 426 while (sce->q.c_cc == 0) { 427 if (flag & IO_NDELAY) { 428 splx(s); 429 return (EWOULDBLOCK); 430 } 431 sce->state |= UGEN_ASLP; 432 DPRINTFN(5, ("ugenread: sleep on %p\n", sc)); 433 error = tsleep(sce, PZERO | PCATCH, "ugenri", 0); 434 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 435 if (sc->sc_dying) 436 error = EIO; 437 if (error) { 438 sce->state &= ~UGEN_ASLP; 439 break; 440 } 441 } 442 splx(s); 443 444 /* Transfer as many chunks as possible. */ 445 while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) { 446 n = min(sce->q.c_cc, uio->uio_resid); 447 if (n > sizeof(buffer)) 448 n = sizeof(buffer); 449 450 /* Remove a small chunk from the input queue. */ 451 q_to_b(&sce->q, buffer, n); 452 DPRINTFN(5, ("ugenread: got %d chars\n", n)); 453 454 /* Copy the data to the user process. */ 455 error = uiomove(buffer, n, uio); 456 if (error) 457 break; 458 } 459 break; 460 case UE_BULK: 461 xfer = usbd_alloc_request(sc->sc_udev); 462 if (xfer == 0) 463 return (ENOMEM); 464 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 465 DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n)); 466 tn = n; 467 err = usbd_bulk_transfer( 468 xfer, sce->pipeh, 469 sce->state & UGEN_SHORT_OK ? 470 USBD_SHORT_XFER_OK : 0, 471 sce->timeout, buf, &tn, "ugenrb"); 472 if (err != USBD_NORMAL_COMPLETION) { 473 if (err == USBD_INTERRUPTED) 474 error = EINTR; 475 else if (err == USBD_TIMEOUT) 476 error = ETIMEDOUT; 477 else 478 error = EIO; 479 break; 480 } 481 DPRINTFN(1, ("ugenread: got %d bytes\n", tn)); 482 error = uiomove(buf, tn, uio); 483 if (error || tn < n) 484 break; 485 } 486 usbd_free_request(xfer); 487 break; 488 default: 489 return (ENXIO); 490 } 491 return (error); 492 } 493 494 int 495 ugenread(dev, uio, flag) 496 dev_t dev; 497 struct uio *uio; 498 int flag; 499 { 500 int endpt = UGENENDPOINT(dev); 501 struct ugen_softc *sc; 502 int error; 503 504 USB_GET_SC(ugen, UGENUNIT(dev), sc); 505 sc->sc_refcnt++; 506 error = ugen_do_read(sc, endpt, uio, flag); 507 if (--sc->sc_refcnt < 0) 508 usb_detach_wakeup(USBDEV(sc->sc_dev)); 509 return (error); 510 } 511 512 int 513 ugen_do_write(sc, endpt, uio, flag) 514 struct ugen_softc *sc; 515 int endpt; 516 struct uio *uio; 517 int flag; 518 { 519 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT]; 520 u_int32_t n; 521 int error = 0; 522 char buf[UGEN_BBSIZE]; 523 usbd_xfer_handle xfer; 524 usbd_status err; 525 526 #ifdef __NetBSD__ 527 DPRINTFN(5, ("ugenwrite: %d:%d\n", sc->sc_dev.dv_unit, endpt)); 528 #endif 529 530 if (sc->sc_dying) 531 return (EIO); 532 533 if (endpt == USB_CONTROL_ENDPOINT) 534 return (ENODEV); 535 536 #ifdef DIAGNOSTIC 537 if (sce->edesc == NULL) { 538 printf("ugenwrite: no edesc\n"); 539 return (EIO); 540 } 541 if (sce->pipeh == NULL) { 542 printf("ugenwrite: no pipe\n"); 543 return (EIO); 544 } 545 #endif 546 547 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 548 case UE_BULK: 549 xfer = usbd_alloc_request(sc->sc_udev); 550 if (xfer == 0) 551 return (EIO); 552 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 553 error = uiomove(buf, n, uio); 554 if (error) 555 break; 556 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 557 err = usbd_bulk_transfer(xfer, sce->pipeh, 0, 558 sce->timeout, buf, &n,"ugenwb"); 559 if (err) { 560 if (err == USBD_INTERRUPTED) 561 error = EINTR; 562 else 563 error = EIO; 564 break; 565 } 566 } 567 usbd_free_request(xfer); 568 break; 569 default: 570 return (ENXIO); 571 } 572 return (error); 573 } 574 575 int 576 ugenwrite(dev, uio, flag) 577 dev_t dev; 578 struct uio *uio; 579 int flag; 580 { 581 int endpt = UGENENDPOINT(dev); 582 struct ugen_softc *sc; 583 int error; 584 585 USB_GET_SC(ugen, UGENUNIT(dev), sc); 586 sc->sc_refcnt++; 587 error = ugen_do_write(sc, endpt, uio, flag); 588 if (--sc->sc_refcnt < 0) 589 usb_detach_wakeup(USBDEV(sc->sc_dev)); 590 return (error); 591 } 592 593 #if defined(__NetBSD__) || defined(__OpenBSD__) 594 int 595 ugen_activate(self, act) 596 device_ptr_t self; 597 enum devact act; 598 { 599 struct ugen_softc *sc = (struct ugen_softc *)self; 600 601 switch (act) { 602 case DVACT_ACTIVATE: 603 return (EOPNOTSUPP); 604 break; 605 606 case DVACT_DEACTIVATE: 607 sc->sc_dying = 1; 608 break; 609 } 610 return (0); 611 } 612 #endif 613 614 USB_DETACH(ugen) 615 { 616 USB_DETACH_START(ugen, sc); 617 struct ugen_endpoint *sce; 618 int i, dir; 619 int s; 620 #if defined(__NetBSD__) || defined(__OpenBSD__) 621 int maj, mn; 622 623 DPRINTF(("ugen_detach: sc=%p flags=%d\n", sc, flags)); 624 #elif defined(__FreeBSD__) 625 DPRINTF(("ugen_detach: sc=%p\n", sc)); 626 #endif 627 628 sc->sc_dying = 1; 629 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 630 for (i = 0; i < USB_MAX_ENDPOINTS; i++) { 631 for (dir = OUT; dir <= IN; dir++) { 632 sce = &sc->sc_endpoints[i][dir]; 633 if (sce && sce->pipeh) 634 usbd_abort_pipe(sce->pipeh); 635 } 636 } 637 638 s = splusb(); 639 if (--sc->sc_refcnt >= 0) { 640 /* Wake everyone */ 641 for (i = 0; i < USB_MAX_ENDPOINTS; i++) 642 wakeup(&sc->sc_endpoints[i][IN]); 643 /* Wait for processes to go away. */ 644 usb_detach_wait(USBDEV(sc->sc_dev)); 645 } 646 splx(s); 647 648 #if defined(__NetBSD__) || defined(__OpenBSD__) 649 /* locate the major number */ 650 for (maj = 0; maj < nchrdev; maj++) 651 if (cdevsw[maj].d_open == ugenopen) 652 break; 653 654 /* Nuke the vnodes for any open instances (calls close). */ 655 mn = self->dv_unit * USB_MAX_ENDPOINTS; 656 vdevgone(maj, mn, mn + USB_MAX_ENDPOINTS - 1, VCHR); 657 #elif defined(__FreeBSD__) 658 /* XXX not implemented yet */ 659 #endif 660 661 return (0); 662 } 663 664 void 665 ugenintr(xfer, addr, status) 666 usbd_xfer_handle xfer; 667 usbd_private_handle addr; 668 usbd_status status; 669 { 670 struct ugen_endpoint *sce = addr; 671 /*struct ugen_softc *sc = sce->sc;*/ 672 u_int32_t count; 673 u_char *ibuf; 674 675 if (status == USBD_CANCELLED) 676 return; 677 678 if (status != USBD_NORMAL_COMPLETION) { 679 DPRINTF(("ugenintr: status=%d\n", status)); 680 usbd_clear_endpoint_stall_async(sce->pipeh); 681 return; 682 } 683 684 usbd_get_request_status(xfer, 0, 0, &count, 0); 685 ibuf = sce->ibuf; 686 687 DPRINTFN(5, ("ugenintr: xfer=%p status=%d count=%d\n", 688 xfer, status, count)); 689 DPRINTFN(5, (" data = %02x %02x %02x\n", 690 ibuf[0], ibuf[1], ibuf[2])); 691 692 (void)b_to_q(ibuf, count, &sce->q); 693 694 if (sce->state & UGEN_ASLP) { 695 sce->state &= ~UGEN_ASLP; 696 DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); 697 wakeup(sce); 698 } 699 selwakeup(&sce->rsel); 700 } 701 702 usbd_status 703 ugen_set_interface(sc, ifaceidx, altno) 704 struct ugen_softc *sc; 705 int ifaceidx, altno; 706 { 707 usbd_interface_handle iface; 708 usb_endpoint_descriptor_t *ed; 709 usbd_status err; 710 struct ugen_endpoint *sce; 711 u_int8_t niface, nendpt, endptno, endpt; 712 int dir; 713 714 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); 715 716 err = usbd_interface_count(sc->sc_udev, &niface); 717 if (err) 718 return (err); 719 if (ifaceidx < 0 || ifaceidx >= niface) 720 return (USBD_INVAL); 721 722 err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 723 if (err) 724 return (err); 725 err = usbd_endpoint_count(iface, &nendpt); 726 if (err) 727 return (err); 728 for (endptno = 0; endptno < nendpt; endptno++) { 729 ed = usbd_interface2endpoint_descriptor(iface,endptno); 730 endpt = ed->bEndpointAddress; 731 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 732 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 733 sce->sc = 0; 734 sce->edesc = 0; 735 sce->iface = 0; 736 } 737 738 /* change setting */ 739 err = usbd_set_interface(iface, altno); 740 if (err) 741 return (err); 742 743 err = usbd_endpoint_count(iface, &nendpt); 744 if (err) 745 return (err); 746 for (endptno = 0; endptno < nendpt; endptno++) { 747 ed = usbd_interface2endpoint_descriptor(iface,endptno); 748 endpt = ed->bEndpointAddress; 749 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 750 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 751 sce->sc = sc; 752 sce->edesc = ed; 753 sce->iface = iface; 754 } 755 return (0); 756 } 757 758 /* Retrieve a complete descriptor for a certain device and index. */ 759 usb_config_descriptor_t * 760 ugen_get_cdesc(sc, index, lenp) 761 struct ugen_softc *sc; 762 int index; 763 int *lenp; 764 { 765 usb_config_descriptor_t *cdesc, *tdesc, cdescr; 766 int len; 767 usbd_status err; 768 769 if (index == USB_CURRENT_CONFIG_INDEX) { 770 tdesc = usbd_get_config_descriptor(sc->sc_udev); 771 len = UGETW(tdesc->wTotalLength); 772 if (lenp) 773 *lenp = len; 774 cdesc = malloc(len, M_TEMP, M_WAITOK); 775 memcpy(cdesc, tdesc, len); 776 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); 777 } else { 778 err = usbd_get_config_desc(sc->sc_udev, index, &cdescr); 779 if (err) 780 return (0); 781 len = UGETW(cdescr.wTotalLength); 782 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); 783 if (lenp) 784 *lenp = len; 785 cdesc = malloc(len, M_TEMP, M_WAITOK); 786 err = usbd_get_config_desc_full(sc->sc_udev, index, cdesc,len); 787 if (err) { 788 free(cdesc, M_TEMP); 789 return (0); 790 } 791 } 792 return (cdesc); 793 } 794 795 int 796 ugen_get_alt_index(sc, ifaceidx) 797 struct ugen_softc *sc; 798 int ifaceidx; 799 { 800 usbd_interface_handle iface; 801 usbd_status err; 802 803 err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 804 if (err) 805 return (-1); 806 return (usbd_get_interface_altindex(iface)); 807 } 808 809 int 810 ugen_do_ioctl(sc, endpt, cmd, addr, flag, p) 811 struct ugen_softc *sc; 812 int endpt; 813 u_long cmd; 814 caddr_t addr; 815 int flag; 816 struct proc *p; 817 { 818 struct ugen_endpoint *sce; 819 usbd_status err; 820 usbd_interface_handle iface; 821 struct usb_config_desc *cd; 822 usb_config_descriptor_t *cdesc; 823 struct usb_interface_desc *id; 824 usb_interface_descriptor_t *idesc; 825 struct usb_endpoint_desc *ed; 826 usb_endpoint_descriptor_t *edesc; 827 struct usb_alt_interface *ai; 828 struct usb_string_desc *si; 829 u_int8_t conf, alt; 830 831 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 832 if (sc->sc_dying) 833 return (EIO); 834 835 switch (cmd) { 836 case FIONBIO: 837 /* All handled in the upper FS layer. */ 838 return (0); 839 case USB_SET_SHORT_XFER: 840 /* This flag only affects read */ 841 if (endpt == USB_CONTROL_ENDPOINT) 842 return (EINVAL); 843 sce = &sc->sc_endpoints[endpt][IN]; 844 if (sce == NULL) 845 return (EINVAL); 846 #ifdef DIAGNOSTIC 847 if (sce->pipeh == NULL) { 848 printf("ugenioctl: USB_SET_SHORT_XFER, no pipe\n"); 849 return (EIO); 850 } 851 #endif 852 if (*(int *)addr) 853 sce->state |= UGEN_SHORT_OK; 854 else 855 sce->state &= ~UGEN_SHORT_OK; 856 return (0); 857 case USB_SET_TIMEOUT: 858 sce = &sc->sc_endpoints[endpt][IN]; 859 if (sce == NULL) 860 return (EINVAL); 861 #ifdef DIAGNOSTIC 862 if (sce->pipeh == NULL) { 863 printf("ugenioctl: USB_SET_TIMEOUT, no pipe\n"); 864 return (EIO); 865 } 866 #endif 867 sce->timeout = *(int *)addr; 868 return (0); 869 default: 870 break; 871 } 872 873 if (endpt != USB_CONTROL_ENDPOINT) 874 return (EINVAL); 875 876 switch (cmd) { 877 #ifdef USB_DEBUG 878 case USB_SETDEBUG: 879 ugendebug = *(int *)addr; 880 break; 881 #endif 882 case USB_GET_CONFIG: 883 err = usbd_get_config(sc->sc_udev, &conf); 884 if (err) 885 return (EIO); 886 *(int *)addr = conf; 887 break; 888 case USB_SET_CONFIG: 889 if (!(flag & FWRITE)) 890 return (EPERM); 891 err = ugen_set_config(sc, *(int *)addr); 892 if (err) 893 return (EIO); 894 break; 895 case USB_GET_ALTINTERFACE: 896 ai = (struct usb_alt_interface *)addr; 897 err = usbd_device2interface_handle(sc->sc_udev, 898 ai->interface_index, &iface); 899 if (err) 900 return (EINVAL); 901 idesc = usbd_get_interface_descriptor(iface); 902 if (idesc == NULL) 903 return (EIO); 904 ai->alt_no = idesc->bAlternateSetting; 905 break; 906 case USB_SET_ALTINTERFACE: 907 if (!(flag & FWRITE)) 908 return (EPERM); 909 ai = (struct usb_alt_interface *)addr; 910 err = usbd_device2interface_handle(sc->sc_udev, 911 ai->interface_index, &iface); 912 if (err) 913 return (EINVAL); 914 err = ugen_set_interface(sc, ai->interface_index, ai->alt_no); 915 if (err) 916 return (EINVAL); 917 break; 918 case USB_GET_NO_ALT: 919 ai = (struct usb_alt_interface *)addr; 920 cdesc = ugen_get_cdesc(sc, ai->config_index, 0); 921 if (cdesc == NULL) 922 return (EINVAL); 923 idesc = usbd_find_idesc(cdesc, ai->interface_index, 0); 924 if (idesc == NULL) { 925 free(cdesc, M_TEMP); 926 return (EINVAL); 927 } 928 ai->alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); 929 free(cdesc, M_TEMP); 930 break; 931 case USB_GET_DEVICE_DESC: 932 *(usb_device_descriptor_t *)addr = 933 *usbd_get_device_descriptor(sc->sc_udev); 934 break; 935 case USB_GET_CONFIG_DESC: 936 cd = (struct usb_config_desc *)addr; 937 cdesc = ugen_get_cdesc(sc, cd->config_index, 0); 938 if (cdesc == NULL) 939 return (EINVAL); 940 cd->desc = *cdesc; 941 free(cdesc, M_TEMP); 942 break; 943 case USB_GET_INTERFACE_DESC: 944 id = (struct usb_interface_desc *)addr; 945 cdesc = ugen_get_cdesc(sc, id->config_index, 0); 946 if (cdesc == NULL) 947 return (EINVAL); 948 if (id->config_index == USB_CURRENT_CONFIG_INDEX && 949 id->alt_index == USB_CURRENT_ALT_INDEX) 950 alt = ugen_get_alt_index(sc, id->interface_index); 951 else 952 alt = id->alt_index; 953 idesc = usbd_find_idesc(cdesc, id->interface_index, alt); 954 if (idesc == NULL) { 955 free(cdesc, M_TEMP); 956 return (EINVAL); 957 } 958 id->desc = *idesc; 959 free(cdesc, M_TEMP); 960 break; 961 case USB_GET_ENDPOINT_DESC: 962 ed = (struct usb_endpoint_desc *)addr; 963 cdesc = ugen_get_cdesc(sc, ed->config_index, 0); 964 if (cdesc == NULL) 965 return (EINVAL); 966 if (ed->config_index == USB_CURRENT_CONFIG_INDEX && 967 ed->alt_index == USB_CURRENT_ALT_INDEX) 968 alt = ugen_get_alt_index(sc, ed->interface_index); 969 else 970 alt = ed->alt_index; 971 edesc = usbd_find_edesc(cdesc, ed->interface_index, 972 alt, ed->endpoint_index); 973 if (edesc == NULL) { 974 free(cdesc, M_TEMP); 975 return (EINVAL); 976 } 977 ed->desc = *edesc; 978 free(cdesc, M_TEMP); 979 break; 980 case USB_GET_FULL_DESC: 981 { 982 int len; 983 struct iovec iov; 984 struct uio uio; 985 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 986 int error; 987 988 cdesc = ugen_get_cdesc(sc, fd->config_index, &len); 989 if (len > fd->size) 990 len = fd->size; 991 iov.iov_base = (caddr_t)fd->data; 992 iov.iov_len = len; 993 uio.uio_iov = &iov; 994 uio.uio_iovcnt = 1; 995 uio.uio_resid = len; 996 uio.uio_offset = 0; 997 uio.uio_segflg = UIO_USERSPACE; 998 uio.uio_rw = UIO_READ; 999 uio.uio_procp = p; 1000 error = uiomove(cdesc, len, &uio); 1001 free(cdesc, M_TEMP); 1002 return (error); 1003 } 1004 case USB_GET_STRING_DESC: 1005 si = (struct usb_string_desc *)addr; 1006 err = usbd_get_string_desc(sc->sc_udev, si->string_index, 1007 si->language_id, &si->desc); 1008 if (err) 1009 return (EINVAL); 1010 break; 1011 case USB_DO_REQUEST: 1012 { 1013 struct usb_ctl_request *ur = (void *)addr; 1014 int len = UGETW(ur->request.wLength); 1015 struct iovec iov; 1016 struct uio uio; 1017 void *ptr = 0; 1018 usbd_status err; 1019 int error = 0; 1020 1021 if (!(flag & FWRITE)) 1022 return (EPERM); 1023 /* Avoid requests that would damage the bus integrity. */ 1024 if ((ur->request.bmRequestType == UT_WRITE_DEVICE && 1025 ur->request.bRequest == UR_SET_ADDRESS) || 1026 (ur->request.bmRequestType == UT_WRITE_DEVICE && 1027 ur->request.bRequest == UR_SET_CONFIG) || 1028 (ur->request.bmRequestType == UT_WRITE_INTERFACE && 1029 ur->request.bRequest == UR_SET_INTERFACE)) 1030 return (EINVAL); 1031 1032 if (len < 0 || len > 32767) 1033 return (EINVAL); 1034 if (len != 0) { 1035 iov.iov_base = (caddr_t)ur->data; 1036 iov.iov_len = len; 1037 uio.uio_iov = &iov; 1038 uio.uio_iovcnt = 1; 1039 uio.uio_resid = len; 1040 uio.uio_offset = 0; 1041 uio.uio_segflg = UIO_USERSPACE; 1042 uio.uio_rw = 1043 ur->request.bmRequestType & UT_READ ? 1044 UIO_READ : UIO_WRITE; 1045 uio.uio_procp = p; 1046 ptr = malloc(len, M_TEMP, M_WAITOK); 1047 if (uio.uio_rw == UIO_WRITE) { 1048 error = uiomove(ptr, len, &uio); 1049 if (error) 1050 goto ret; 1051 } 1052 } 1053 err = usbd_do_request_flags(sc->sc_udev, &ur->request, 1054 ptr, ur->flags, &ur->actlen); 1055 if (err) { 1056 error = EIO; 1057 goto ret; 1058 } 1059 if (len != 0) { 1060 if (uio.uio_rw == UIO_READ) { 1061 error = uiomove(ptr, len, &uio); 1062 if (error) 1063 goto ret; 1064 } 1065 } 1066 ret: 1067 if (ptr) 1068 free(ptr, M_TEMP); 1069 return (error); 1070 } 1071 case USB_GET_DEVICEINFO: 1072 usbd_fill_deviceinfo(sc->sc_udev, 1073 (struct usb_device_info *)addr); 1074 break; 1075 default: 1076 return (EINVAL); 1077 } 1078 return (0); 1079 } 1080 1081 int 1082 ugenioctl(dev, cmd, addr, flag, p) 1083 dev_t dev; 1084 u_long cmd; 1085 caddr_t addr; 1086 int flag; 1087 struct proc *p; 1088 { 1089 int endpt = UGENENDPOINT(dev); 1090 struct ugen_softc *sc; 1091 int error; 1092 1093 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1094 sc->sc_refcnt++; 1095 error = ugen_do_ioctl(sc, endpt, cmd, addr, flag, p); 1096 if (--sc->sc_refcnt < 0) 1097 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1098 return (error); 1099 } 1100 1101 int 1102 ugenpoll(dev, events, p) 1103 dev_t dev; 1104 int events; 1105 struct proc *p; 1106 { 1107 struct ugen_softc *sc; 1108 struct ugen_endpoint *sce; 1109 int revents = 0; 1110 int s; 1111 1112 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1113 if (sc->sc_dying) 1114 return (EIO); 1115 1116 /* XXX always IN */ 1117 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 1118 if (sce == NULL) 1119 return (EINVAL); 1120 #ifdef DIAGNOSTIC 1121 if (!sce->edesc) { 1122 printf("ugenwrite: no edesc\n"); 1123 return (EIO); 1124 } 1125 if (!sce->pipeh) { 1126 printf("ugenpoll: no pipe\n"); 1127 return (EIO); 1128 } 1129 #endif 1130 s = splusb(); 1131 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 1132 case UE_INTERRUPT: 1133 if (events & (POLLIN | POLLRDNORM)) { 1134 if (sce->q.c_cc > 0) 1135 revents |= events & (POLLIN | POLLRDNORM); 1136 else 1137 selrecord(p, &sce->rsel); 1138 } 1139 break; 1140 case UE_BULK: 1141 /* 1142 * We have no easy way of determining if a read will 1143 * yield any data or a write will happen. 1144 * Pretend they will. 1145 */ 1146 revents |= events & 1147 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 1148 break; 1149 default: 1150 break; 1151 } 1152 splx(s); 1153 return (revents); 1154 } 1155 1156 #if defined(__FreeBSD__) 1157 DEV_DRIVER_MODULE(ugen, uhub, ugen_driver, ugen_devclass, ugen_cdevsw, usbd_driver_load, 0); 1158 #endif 1159
Indexes created Thu Sep 25 16:09:42 GMT 2025