ugen.c revision 1.25
1 /* $NetBSD: ugen.c,v 1.25 1999/10/13 08:10:55 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 if (!edesc) 297 return (ENXIO); 298 switch (edesc->bmAttributes & UE_XFERTYPE) { 299 case UE_INTERRUPT: 300 isize = UGETW(edesc->wMaxPacketSize); 301 if (isize == 0) /* shouldn't happen */ 302 return (EINVAL); 303 sce->ibuf = malloc(isize, M_USBDEV, M_WAITOK); 304 DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n", 305 endpt, isize)); 306 if (clalloc(&sce->q, UGEN_IBSIZE, 0) == -1) 307 return (ENOMEM); 308 r = usbd_open_pipe_intr(sce->iface, 309 edesc->bEndpointAddress, 310 USBD_SHORT_XFER_OK, &sce->pipeh, sce, 311 sce->ibuf, isize, ugenintr); 312 if (r != USBD_NORMAL_COMPLETION) { 313 free(sce->ibuf, M_USBDEV); 314 clfree(&sce->q); 315 return (EIO); 316 } 317 DPRINTFN(5, ("ugenopen: interrupt open done\n")); 318 break; 319 case UE_BULK: 320 r = usbd_open_pipe(sce->iface, 321 edesc->bEndpointAddress, 0, 322 &sce->pipeh); 323 if (r != USBD_NORMAL_COMPLETION) 324 return (EIO); 325 break; 326 case UE_CONTROL: 327 case UE_ISOCHRONOUS: 328 return (EINVAL); 329 } 330 } 331 sc->sc_is_open[endpt] = 1; 332 return (0); 333 } 334 335 int 336 ugenclose(dev, flag, mode, p) 337 dev_t dev; 338 int flag; 339 int mode; 340 struct proc *p; 341 { 342 int endpt = UGENENDPOINT(dev); 343 struct ugen_softc *sc; 344 struct ugen_endpoint *sce; 345 int dir; 346 347 USB_GET_SC(ugen, UGENUNIT(dev), sc); 348 DPRINTFN(5, ("ugenclose: flag=%d, mode=%d, unit=%d, endpt=%d\n", 349 flag, mode, UGENUNIT(dev), endpt)); 350 351 #ifdef DIAGNOSTIC 352 if (!sc->sc_is_open[endpt]) { 353 printf("ugenclose: not open\n"); 354 return (EINVAL); 355 } 356 #endif 357 358 if (endpt == USB_CONTROL_ENDPOINT) { 359 DPRINTFN(5, ("ugenclose: close control\n")); 360 sc->sc_is_open[endpt] = 0; 361 return (0); 362 } 363 364 for (dir = OUT; dir <= IN; dir++) { 365 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 366 continue; 367 sce = &sc->sc_endpoints[endpt][dir]; 368 if (!sce || !sce->pipeh) 369 continue; 370 DPRINTFN(5, ("ugenclose: endpt=%d dir=%d sce=%p\n", 371 endpt, dir, sce)); 372 373 usbd_abort_pipe(sce->pipeh); 374 usbd_close_pipe(sce->pipeh); 375 sce->pipeh = 0; 376 377 if (sce->ibuf) { 378 free(sce->ibuf, M_USBDEV); 379 sce->ibuf = 0; 380 clfree(&sce->q); 381 } 382 } 383 sc->sc_is_open[endpt] = 0; 384 385 return (0); 386 } 387 388 int 389 ugen_do_read(sc, endpt, uio, flag) 390 struct ugen_softc *sc; 391 int endpt; 392 struct uio *uio; 393 int flag; 394 { 395 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 396 u_int32_t n, tn; 397 char buf[UGEN_BBSIZE]; 398 usbd_request_handle reqh; 399 usbd_status r; 400 int s; 401 int error = 0; 402 u_char buffer[UGEN_CHUNK]; 403 404 #ifdef __NetBSD__ 405 DPRINTFN(5, ("ugenread: %d:%d\n", sc->sc_dev.dv_unit, endpt)); 406 #endif 407 if (sc->sc_dying) 408 return (EIO); 409 410 #ifdef DIAGNOSTIC 411 if (!sce->edesc) { 412 printf("ugenread: no edesc\n"); 413 return (EIO); 414 } 415 if (!sce->pipeh) { 416 printf("ugenread: no pipe\n"); 417 return (EIO); 418 } 419 #endif 420 421 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 422 case UE_INTERRUPT: 423 /* Block until activity occured. */ 424 s = splusb(); 425 while (sce->q.c_cc == 0) { 426 if (flag & IO_NDELAY) { 427 splx(s); 428 return (EWOULDBLOCK); 429 } 430 sce->state |= UGEN_ASLP; 431 DPRINTFN(5, ("ugenread: sleep on %p\n", sc)); 432 error = tsleep(sce, PZERO | PCATCH, "ugenri", 0); 433 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 434 if (sc->sc_dying) 435 error = EIO; 436 if (error) { 437 sce->state &= ~UGEN_ASLP; 438 break; 439 } 440 } 441 splx(s); 442 443 /* Transfer as many chunks as possible. */ 444 while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) { 445 n = min(sce->q.c_cc, uio->uio_resid); 446 if (n > sizeof(buffer)) 447 n = sizeof(buffer); 448 449 /* Remove a small chunk from the input queue. */ 450 q_to_b(&sce->q, buffer, n); 451 DPRINTFN(5, ("ugenread: got %d chars\n", n)); 452 453 /* Copy the data to the user process. */ 454 error = uiomove(buffer, n, uio); 455 if (error) 456 break; 457 } 458 break; 459 case UE_BULK: 460 reqh = usbd_alloc_request(sc->sc_udev); 461 if (reqh == 0) 462 return (ENOMEM); 463 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 464 DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n)); 465 tn = n; 466 r = usbd_bulk_transfer( 467 reqh, sce->pipeh, 468 sce->state & UGEN_SHORT_OK ? 469 USBD_SHORT_XFER_OK : 0, 470 sce->timeout, buf, &tn, "ugenrb"); 471 if (r != USBD_NORMAL_COMPLETION) { 472 if (r == USBD_INTERRUPTED) 473 error = EINTR; 474 else if (r == USBD_TIMEOUT) 475 error = ETIMEDOUT; 476 else 477 error = EIO; 478 break; 479 } 480 DPRINTFN(1, ("ugenread: got %d bytes\n", tn)); 481 error = uiomove(buf, tn, uio); 482 if (error || tn < n) 483 break; 484 } 485 usbd_free_request(reqh); 486 break; 487 default: 488 return (ENXIO); 489 } 490 return (error); 491 } 492 493 int 494 ugenread(dev, uio, flag) 495 dev_t dev; 496 struct uio *uio; 497 int flag; 498 { 499 int endpt = UGENENDPOINT(dev); 500 struct ugen_softc *sc; 501 int error; 502 503 USB_GET_SC(ugen, UGENUNIT(dev), sc); 504 sc->sc_refcnt++; 505 error = ugen_do_read(sc, endpt, uio, flag); 506 if (--sc->sc_refcnt < 0) 507 usb_detach_wakeup(USBDEV(sc->sc_dev)); 508 return (error); 509 } 510 511 int 512 ugen_do_write(sc, endpt, uio, flag) 513 struct ugen_softc *sc; 514 int endpt; 515 struct uio *uio; 516 int flag; 517 { 518 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT]; 519 u_int32_t n; 520 int error = 0; 521 char buf[UGEN_BBSIZE]; 522 usbd_request_handle reqh; 523 usbd_status r; 524 525 if (sc->sc_dying) 526 return (EIO); 527 528 #ifdef DIAGNOSTIC 529 if (!sce->edesc) { 530 printf("ugenwrite: no edesc\n"); 531 return (EIO); 532 } 533 if (!sce->pipeh) { 534 printf("ugenwrite: no pipe\n"); 535 return (EIO); 536 } 537 #endif 538 539 DPRINTF(("ugenwrite\n")); 540 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 541 case UE_BULK: 542 reqh = usbd_alloc_request(sc->sc_udev); 543 if (reqh == 0) 544 return (EIO); 545 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 546 error = uiomove(buf, n, uio); 547 if (error) 548 break; 549 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 550 r = usbd_bulk_transfer(reqh, sce->pipeh, 0, 551 sce->timeout, buf, &n,"ugenwb"); 552 if (r != USBD_NORMAL_COMPLETION) { 553 if (r == USBD_INTERRUPTED) 554 error = EINTR; 555 else 556 error = EIO; 557 break; 558 } 559 } 560 usbd_free_request(reqh); 561 break; 562 default: 563 return (ENXIO); 564 } 565 return (error); 566 } 567 568 int 569 ugenwrite(dev, uio, flag) 570 dev_t dev; 571 struct uio *uio; 572 int flag; 573 { 574 int endpt = UGENENDPOINT(dev); 575 struct ugen_softc *sc; 576 int error; 577 578 USB_GET_SC(ugen, UGENUNIT(dev), sc); 579 sc->sc_refcnt++; 580 error = ugen_do_write(sc, endpt, uio, flag); 581 if (--sc->sc_refcnt < 0) 582 usb_detach_wakeup(USBDEV(sc->sc_dev)); 583 return (error); 584 } 585 586 #if defined(__NetBSD__) || defined(__OpenBSD__) 587 int 588 ugen_activate(self, act) 589 device_ptr_t self; 590 enum devact act; 591 { 592 struct ugen_softc *sc = (struct ugen_softc *)self; 593 594 switch (act) { 595 case DVACT_ACTIVATE: 596 return (EOPNOTSUPP); 597 break; 598 599 case DVACT_DEACTIVATE: 600 sc->sc_dying = 1; 601 break; 602 } 603 return (0); 604 } 605 #endif 606 607 USB_DETACH(ugen) 608 { 609 USB_DETACH_START(ugen, sc); 610 struct ugen_endpoint *sce; 611 int i, dir; 612 int s; 613 #if defined(__NetBSD__) || defined(__OpenBSD__) 614 int maj, mn; 615 616 DPRINTF(("ugen_detach: sc=%p flags=%d\n", sc, flags)); 617 #elif defined(__FreeBSD__) 618 DPRINTF(("ugen_detach: sc=%p\n", sc)); 619 #endif 620 621 sc->sc_dying = 1; 622 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 623 for (i = 0; i < USB_MAX_ENDPOINTS; i++) { 624 for (dir = OUT; dir <= IN; dir++) { 625 sce = &sc->sc_endpoints[i][dir]; 626 if (sce && sce->pipeh) 627 usbd_abort_pipe(sce->pipeh); 628 } 629 } 630 631 s = splusb(); 632 if (--sc->sc_refcnt >= 0) { 633 /* Wake everyone */ 634 for (i = 0; i < USB_MAX_ENDPOINTS; i++) 635 wakeup(&sc->sc_endpoints[i][IN]); 636 /* Wait for processes to go away. */ 637 usb_detach_wait(USBDEV(sc->sc_dev)); 638 } 639 splx(s); 640 641 #if defined(__NetBSD__) || defined(__OpenBSD__) 642 /* locate the major number */ 643 for (maj = 0; maj < nchrdev; maj++) 644 if (cdevsw[maj].d_open == ugenopen) 645 break; 646 647 /* Nuke the vnodes for any open instances (calls close). */ 648 mn = self->dv_unit * USB_MAX_ENDPOINTS; 649 vdevgone(maj, mn, mn + USB_MAX_ENDPOINTS - 1, VCHR); 650 #elif defined(__FreeBSD__) 651 /* XXX not implemented yet */ 652 #endif 653 654 return (0); 655 } 656 657 void 658 ugenintr(reqh, addr, status) 659 usbd_request_handle reqh; 660 usbd_private_handle addr; 661 usbd_status status; 662 { 663 struct ugen_endpoint *sce = addr; 664 /*struct ugen_softc *sc = sce->sc;*/ 665 u_int32_t count; 666 u_char *ibuf; 667 668 if (status == USBD_CANCELLED) 669 return; 670 671 if (status != USBD_NORMAL_COMPLETION) { 672 DPRINTF(("ugenintr: status=%d\n", status)); 673 usbd_clear_endpoint_stall_async(sce->pipeh); 674 return; 675 } 676 677 usbd_get_request_status(reqh, 0, 0, &count, 0); 678 ibuf = sce->ibuf; 679 680 DPRINTFN(5, ("ugenintr: reqh=%p status=%d count=%d\n", 681 reqh, status, count)); 682 DPRINTFN(5, (" data = %02x %02x %02x\n", 683 ibuf[0], ibuf[1], ibuf[2])); 684 685 (void)b_to_q(ibuf, count, &sce->q); 686 687 if (sce->state & UGEN_ASLP) { 688 sce->state &= ~UGEN_ASLP; 689 DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); 690 wakeup(sce); 691 } 692 selwakeup(&sce->rsel); 693 } 694 695 usbd_status 696 ugen_set_interface(sc, ifaceidx, altno) 697 struct ugen_softc *sc; 698 int ifaceidx, altno; 699 { 700 usbd_interface_handle iface; 701 usb_endpoint_descriptor_t *ed; 702 usbd_status r; 703 struct ugen_endpoint *sce; 704 u_int8_t niface, nendpt, endptno, endpt; 705 int dir; 706 707 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); 708 709 r = usbd_interface_count(sc->sc_udev, &niface); 710 if (r != USBD_NORMAL_COMPLETION) 711 return (r); 712 if (ifaceidx < 0 || ifaceidx >= niface) 713 return (USBD_INVAL); 714 715 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 716 if (r != USBD_NORMAL_COMPLETION) 717 return (r); 718 r = usbd_endpoint_count(iface, &nendpt); 719 if (r != USBD_NORMAL_COMPLETION) 720 return (r); 721 for (endptno = 0; endptno < nendpt; endptno++) { 722 ed = usbd_interface2endpoint_descriptor(iface,endptno); 723 endpt = ed->bEndpointAddress; 724 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 725 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 726 sce->sc = 0; 727 sce->edesc = 0; 728 sce->iface = 0; 729 } 730 731 /* change setting */ 732 r = usbd_set_interface(iface, altno); 733 if (r != USBD_NORMAL_COMPLETION) 734 return (r); 735 736 r = usbd_endpoint_count(iface, &nendpt); 737 if (r != USBD_NORMAL_COMPLETION) 738 return (r); 739 for (endptno = 0; endptno < nendpt; endptno++) { 740 ed = usbd_interface2endpoint_descriptor(iface,endptno); 741 endpt = ed->bEndpointAddress; 742 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 743 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 744 sce->sc = sc; 745 sce->edesc = ed; 746 sce->iface = iface; 747 } 748 return (0); 749 } 750 751 /* Retrieve a complete descriptor for a certain device and index. */ 752 usb_config_descriptor_t * 753 ugen_get_cdesc(sc, index, lenp) 754 struct ugen_softc *sc; 755 int index; 756 int *lenp; 757 { 758 usb_config_descriptor_t *cdesc, *tdesc, cdescr; 759 int len; 760 usbd_status r; 761 762 if (index == USB_CURRENT_CONFIG_INDEX) { 763 tdesc = usbd_get_config_descriptor(sc->sc_udev); 764 len = UGETW(tdesc->wTotalLength); 765 if (lenp) 766 *lenp = len; 767 cdesc = malloc(len, M_TEMP, M_WAITOK); 768 memcpy(cdesc, tdesc, len); 769 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); 770 } else { 771 r = usbd_get_config_desc(sc->sc_udev, index, &cdescr); 772 if (r != USBD_NORMAL_COMPLETION) 773 return (0); 774 len = UGETW(cdescr.wTotalLength); 775 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); 776 if (lenp) 777 *lenp = len; 778 cdesc = malloc(len, M_TEMP, M_WAITOK); 779 r = usbd_get_config_desc_full(sc->sc_udev, index, cdesc, len); 780 if (r != USBD_NORMAL_COMPLETION) { 781 free(cdesc, M_TEMP); 782 return (0); 783 } 784 } 785 return (cdesc); 786 } 787 788 int 789 ugen_get_alt_index(sc, ifaceidx) 790 struct ugen_softc *sc; 791 int ifaceidx; 792 { 793 usbd_interface_handle iface; 794 usbd_status r; 795 796 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 797 if (r != USBD_NORMAL_COMPLETION) 798 return (-1); 799 return (usbd_get_interface_altindex(iface)); 800 } 801 802 int 803 ugen_do_ioctl(sc, endpt, cmd, addr, flag, p) 804 struct ugen_softc *sc; 805 int endpt; 806 u_long cmd; 807 caddr_t addr; 808 int flag; 809 struct proc *p; 810 { 811 struct ugen_endpoint *sce; 812 usbd_status r; 813 usbd_interface_handle iface; 814 struct usb_config_desc *cd; 815 usb_config_descriptor_t *cdesc; 816 struct usb_interface_desc *id; 817 usb_interface_descriptor_t *idesc; 818 struct usb_endpoint_desc *ed; 819 usb_endpoint_descriptor_t *edesc; 820 struct usb_alt_interface *ai; 821 struct usb_string_desc *si; 822 u_int8_t conf, alt; 823 824 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 825 if (sc->sc_dying) 826 return (EIO); 827 828 switch (cmd) { 829 case FIONBIO: 830 /* All handled in the upper FS layer. */ 831 return (0); 832 case USB_SET_SHORT_XFER: 833 /* This flag only affects read */ 834 if (endpt == USB_CONTROL_ENDPOINT) 835 return (EINVAL); 836 sce = &sc->sc_endpoints[endpt][IN]; 837 #ifdef DIAGNOSTIC 838 if (!sce->pipeh) { 839 printf("ugenioctl: USB_SET_SHORT_XFER, no pipe\n"); 840 return (EIO); 841 } 842 #endif 843 if (*(int *)addr) 844 sce->state |= UGEN_SHORT_OK; 845 else 846 sce->state &= ~UGEN_SHORT_OK; 847 return (0); 848 case USB_SET_TIMEOUT: 849 sce = &sc->sc_endpoints[endpt][IN]; 850 #ifdef DIAGNOSTIC 851 if (!sce->pipeh) { 852 printf("ugenioctl: USB_SET_TIMEOUT, no pipe\n"); 853 return (EIO); 854 } 855 #endif 856 sce->timeout = *(int *)addr; 857 return (0); 858 default: 859 break; 860 } 861 862 if (endpt != USB_CONTROL_ENDPOINT) 863 return (EINVAL); 864 865 switch (cmd) { 866 #ifdef USB_DEBUG 867 case USB_SETDEBUG: 868 ugendebug = *(int *)addr; 869 break; 870 #endif 871 case USB_GET_CONFIG: 872 r = usbd_get_config(sc->sc_udev, &conf); 873 if (r != USBD_NORMAL_COMPLETION) 874 return (EIO); 875 *(int *)addr = conf; 876 break; 877 case USB_SET_CONFIG: 878 if (!(flag & FWRITE)) 879 return (EPERM); 880 r = ugen_set_config(sc, *(int *)addr); 881 if (r != USBD_NORMAL_COMPLETION) 882 return (EIO); 883 break; 884 case USB_GET_ALTINTERFACE: 885 ai = (struct usb_alt_interface *)addr; 886 r = usbd_device2interface_handle(sc->sc_udev, 887 ai->interface_index, &iface); 888 if (r != USBD_NORMAL_COMPLETION) 889 return (EINVAL); 890 idesc = usbd_get_interface_descriptor(iface); 891 if (!idesc) 892 return (EIO); 893 ai->alt_no = idesc->bAlternateSetting; 894 break; 895 case USB_SET_ALTINTERFACE: 896 if (!(flag & FWRITE)) 897 return (EPERM); 898 ai = (struct usb_alt_interface *)addr; 899 r = usbd_device2interface_handle(sc->sc_udev, 900 ai->interface_index, &iface); 901 if (r != USBD_NORMAL_COMPLETION) 902 return (EINVAL); 903 r = ugen_set_interface(sc, ai->interface_index, ai->alt_no); 904 if (r != USBD_NORMAL_COMPLETION) 905 return (EINVAL); 906 break; 907 case USB_GET_NO_ALT: 908 ai = (struct usb_alt_interface *)addr; 909 cdesc = ugen_get_cdesc(sc, ai->config_index, 0); 910 if (!cdesc) 911 return (EINVAL); 912 idesc = usbd_find_idesc(cdesc, ai->interface_index, 0); 913 if (!idesc) { 914 free(cdesc, M_TEMP); 915 return (EINVAL); 916 } 917 ai->alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); 918 free(cdesc, M_TEMP); 919 break; 920 case USB_GET_DEVICE_DESC: 921 *(usb_device_descriptor_t *)addr = 922 *usbd_get_device_descriptor(sc->sc_udev); 923 break; 924 case USB_GET_CONFIG_DESC: 925 cd = (struct usb_config_desc *)addr; 926 cdesc = ugen_get_cdesc(sc, cd->config_index, 0); 927 if (!cdesc) 928 return (EINVAL); 929 cd->desc = *cdesc; 930 free(cdesc, M_TEMP); 931 break; 932 case USB_GET_INTERFACE_DESC: 933 id = (struct usb_interface_desc *)addr; 934 cdesc = ugen_get_cdesc(sc, id->config_index, 0); 935 if (!cdesc) 936 return (EINVAL); 937 if (id->config_index == USB_CURRENT_CONFIG_INDEX && 938 id->alt_index == USB_CURRENT_ALT_INDEX) 939 alt = ugen_get_alt_index(sc, id->interface_index); 940 else 941 alt = id->alt_index; 942 idesc = usbd_find_idesc(cdesc, id->interface_index, alt); 943 if (!idesc) { 944 free(cdesc, M_TEMP); 945 return (EINVAL); 946 } 947 id->desc = *idesc; 948 free(cdesc, M_TEMP); 949 break; 950 case USB_GET_ENDPOINT_DESC: 951 ed = (struct usb_endpoint_desc *)addr; 952 cdesc = ugen_get_cdesc(sc, ed->config_index, 0); 953 if (!cdesc) 954 return (EINVAL); 955 if (ed->config_index == USB_CURRENT_CONFIG_INDEX && 956 ed->alt_index == USB_CURRENT_ALT_INDEX) 957 alt = ugen_get_alt_index(sc, ed->interface_index); 958 else 959 alt = ed->alt_index; 960 edesc = usbd_find_edesc(cdesc, ed->interface_index, 961 alt, ed->endpoint_index); 962 if (!edesc) { 963 free(cdesc, M_TEMP); 964 return (EINVAL); 965 } 966 ed->desc = *edesc; 967 free(cdesc, M_TEMP); 968 break; 969 case USB_GET_FULL_DESC: 970 { 971 int len; 972 struct iovec iov; 973 struct uio uio; 974 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 975 int error; 976 977 cdesc = ugen_get_cdesc(sc, fd->config_index, &len); 978 if (len > fd->size) 979 len = fd->size; 980 iov.iov_base = (caddr_t)fd->data; 981 iov.iov_len = len; 982 uio.uio_iov = &iov; 983 uio.uio_iovcnt = 1; 984 uio.uio_resid = len; 985 uio.uio_offset = 0; 986 uio.uio_segflg = UIO_USERSPACE; 987 uio.uio_rw = UIO_READ; 988 uio.uio_procp = p; 989 error = uiomove(cdesc, len, &uio); 990 free(cdesc, M_TEMP); 991 return (error); 992 } 993 case USB_GET_STRING_DESC: 994 si = (struct usb_string_desc *)addr; 995 r = usbd_get_string_desc(sc->sc_udev, si->string_index, 996 si->language_id, &si->desc); 997 if (r != USBD_NORMAL_COMPLETION) 998 return (EINVAL); 999 break; 1000 case USB_DO_REQUEST: 1001 { 1002 struct usb_ctl_request *ur = (void *)addr; 1003 int len = UGETW(ur->request.wLength); 1004 struct iovec iov; 1005 struct uio uio; 1006 void *ptr = 0; 1007 usbd_status r; 1008 int error = 0; 1009 1010 if (!(flag & FWRITE)) 1011 return (EPERM); 1012 /* Avoid requests that would damage the bus integrity. */ 1013 if ((ur->request.bmRequestType == UT_WRITE_DEVICE && 1014 ur->request.bRequest == UR_SET_ADDRESS) || 1015 (ur->request.bmRequestType == UT_WRITE_DEVICE && 1016 ur->request.bRequest == UR_SET_CONFIG) || 1017 (ur->request.bmRequestType == UT_WRITE_INTERFACE && 1018 ur->request.bRequest == UR_SET_INTERFACE)) 1019 return (EINVAL); 1020 1021 if (len < 0 || len > 32767) 1022 return (EINVAL); 1023 if (len != 0) { 1024 iov.iov_base = (caddr_t)ur->data; 1025 iov.iov_len = len; 1026 uio.uio_iov = &iov; 1027 uio.uio_iovcnt = 1; 1028 uio.uio_resid = len; 1029 uio.uio_offset = 0; 1030 uio.uio_segflg = UIO_USERSPACE; 1031 uio.uio_rw = 1032 ur->request.bmRequestType & UT_READ ? 1033 UIO_READ : UIO_WRITE; 1034 uio.uio_procp = p; 1035 ptr = malloc(len, M_TEMP, M_WAITOK); 1036 if (uio.uio_rw == UIO_WRITE) { 1037 error = uiomove(ptr, len, &uio); 1038 if (error) 1039 goto ret; 1040 } 1041 } 1042 r = usbd_do_request_flags(sc->sc_udev, &ur->request, 1043 ptr, ur->flags, &ur->actlen); 1044 if (r != USBD_NORMAL_COMPLETION) { 1045 error = EIO; 1046 goto ret; 1047 } 1048 if (len != 0) { 1049 if (uio.uio_rw == UIO_READ) { 1050 error = uiomove(ptr, len, &uio); 1051 if (error) 1052 goto ret; 1053 } 1054 } 1055 ret: 1056 if (ptr) 1057 free(ptr, M_TEMP); 1058 return (error); 1059 } 1060 case USB_GET_DEVICEINFO: 1061 usbd_fill_deviceinfo(sc->sc_udev, 1062 (struct usb_device_info *)addr); 1063 break; 1064 default: 1065 return (EINVAL); 1066 } 1067 return (0); 1068 } 1069 1070 int 1071 ugenioctl(dev, cmd, addr, flag, p) 1072 dev_t dev; 1073 u_long cmd; 1074 caddr_t addr; 1075 int flag; 1076 struct proc *p; 1077 { 1078 int endpt = UGENENDPOINT(dev); 1079 struct ugen_softc *sc; 1080 int error; 1081 1082 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1083 sc->sc_refcnt++; 1084 error = ugen_do_ioctl(sc, endpt, cmd, addr, flag, p); 1085 if (--sc->sc_refcnt < 0) 1086 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1087 return (error); 1088 } 1089 1090 int 1091 ugenpoll(dev, events, p) 1092 dev_t dev; 1093 int events; 1094 struct proc *p; 1095 { 1096 struct ugen_softc *sc; 1097 struct ugen_endpoint *sce; 1098 int revents = 0; 1099 int s; 1100 1101 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1102 if (sc->sc_dying) 1103 return (EIO); 1104 1105 /* XXX always IN */ 1106 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 1107 #ifdef DIAGNOSTIC 1108 if (!sce->edesc) { 1109 printf("ugenwrite: no edesc\n"); 1110 return (EIO); 1111 } 1112 if (!sce->pipeh) { 1113 printf("ugenpoll: no pipe\n"); 1114 return (EIO); 1115 } 1116 #endif 1117 s = splusb(); 1118 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 1119 case UE_INTERRUPT: 1120 if (events & (POLLIN | POLLRDNORM)) { 1121 if (sce->q.c_cc > 0) 1122 revents |= events & (POLLIN | POLLRDNORM); 1123 else 1124 selrecord(p, &sce->rsel); 1125 } 1126 break; 1127 case UE_BULK: 1128 /* 1129 * We have no easy way of determining if a read will 1130 * yield any data or a write will happen. 1131 * Pretend they will. 1132 */ 1133 revents |= events & 1134 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 1135 break; 1136 default: 1137 break; 1138 } 1139 splx(s); 1140 return (revents); 1141 } 1142 1143 #if defined(__FreeBSD__) 1144 DEV_DRIVER_MODULE(ugen, uhub, ugen_driver, ugen_devclass, ugen_cdevsw, usbd_driver_load, 0); 1145 #endif 1146
Indexes created Fri Sep 26 20:09:58 GMT 2025