ugen.c revision 1.24
1 /* $NetBSD: ugen.c,v 1.24 1999/10/12 11:54:56 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (augustss (at) carlstedt.se) at 9 * Carlstedt Research & Technology. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/kernel.h> 44 #include <sys/malloc.h> 45 #if defined(__NetBSD__) || defined(__OpenBSD__) 46 #include <sys/device.h> 47 #include <sys/ioctl.h> 48 #elif defined(__FreeBSD__) 49 #include <sys/module.h> 50 #include <sys/bus.h> 51 #include <sys/ioccom.h> 52 #include <sys/conf.h> 53 #include <sys/fcntl.h> 54 #include <sys/filio.h> 55 #endif 56 #include <sys/conf.h> 57 #include <sys/tty.h> 58 #include <sys/file.h> 59 #include <sys/select.h> 60 #include <sys/proc.h> 61 #include <sys/vnode.h> 62 #include <sys/poll.h> 63 64 #include <dev/usb/usb.h> 65 #include <dev/usb/usbdi.h> 66 #include <dev/usb/usbdi_util.h> 67 68 #ifdef USB_DEBUG 69 #define DPRINTF(x) if (ugendebug) logprintf x 70 #define DPRINTFN(n,x) if (ugendebug>(n)) logprintf x 71 int ugendebug = 0; 72 #else 73 #define DPRINTF(x) 74 #define DPRINTFN(n,x) 75 #endif 76 77 struct ugen_endpoint { 78 struct ugen_softc *sc; 79 usb_endpoint_descriptor_t *edesc; 80 usbd_interface_handle iface; 81 int state; 82 #define UGEN_ASLP 0x02 /* waiting for data */ 83 #define UGEN_SHORT_OK 0x04 /* short xfers are OK */ 84 usbd_pipe_handle pipeh; 85 struct clist q; 86 struct selinfo rsel; 87 void *ibuf; 88 u_int32_t timeout; 89 }; 90 91 #define UGEN_CHUNK 128 /* chunk size for read */ 92 #define UGEN_IBSIZE 1020 /* buffer size */ 93 #define UGEN_BBSIZE 1024 94 95 struct ugen_softc { 96 USBBASEDEVICE sc_dev; /* base device */ 97 usbd_device_handle sc_udev; 98 99 char sc_is_open[USB_MAX_ENDPOINTS]; 100 struct ugen_endpoint sc_endpoints[USB_MAX_ENDPOINTS][2]; 101 #define OUT 0 102 #define IN 1 103 104 int sc_refcnt; 105 u_char sc_dying; 106 }; 107 108 #if defined(__NetBSD__) || defined(__OpenBSD__) 109 cdev_decl(ugen); 110 #elif defined(__FreeBSD__) 111 d_open_t ugenopen; 112 d_close_t ugenclose; 113 d_read_t ugenread; 114 d_write_t ugenwrite; 115 d_ioctl_t ugenioctl; 116 d_poll_t ugenpoll; 117 118 #define UGEN_CDEV_MAJOR 114 119 120 static struct cdevsw ugen_cdevsw = { 121 /* open */ ugenopen, 122 /* close */ ugenclose, 123 /* read */ ugenread, 124 /* write */ ugenwrite, 125 /* ioctl */ ugenioctl, 126 /* stop */ nostop, 127 /* reset */ noreset, 128 /* devtotty */ nodevtotty, 129 /* poll */ ugenpoll, 130 /* mmap */ nommap, 131 /* strategy */ nostrategy, 132 /* name */ "ugen", 133 /* parms */ noparms, 134 /* maj */ UGEN_CDEV_MAJOR, 135 /* dump */ nodump, 136 /* psize */ nopsize, 137 /* flags */ 0, 138 /* maxio */ 0, 139 /* bmaj */ -1 140 }; 141 #endif 142 143 void ugenintr __P((usbd_request_handle reqh, usbd_private_handle addr, 144 usbd_status status)); 145 146 int ugen_do_read __P((struct ugen_softc *, int, struct uio *, int)); 147 int ugen_do_write __P((struct ugen_softc *, int, struct uio *, int)); 148 int ugen_do_ioctl __P((struct ugen_softc *, int, u_long, 149 caddr_t, int, struct proc *)); 150 int ugen_set_config __P((struct ugen_softc *sc, int configno)); 151 usb_config_descriptor_t *ugen_get_cdesc __P((struct ugen_softc *sc, int index, 152 int *lenp)); 153 usbd_status ugen_set_interface __P((struct ugen_softc *, int, int)); 154 int ugen_get_alt_index __P((struct ugen_softc *sc, int ifaceidx)); 155 156 #define UGENUNIT(n) ((minor(n) >> 4) & 0xf) 157 #define UGENENDPOINT(n) (minor(n) & 0xf) 158 #define UGENDEV(u, e) (makedev(0, ((u) << 4) | (e))) 159 160 USB_DECLARE_DRIVER(ugen); 161 162 USB_MATCH(ugen) 163 { 164 USB_MATCH_START(ugen, uaa); 165 166 if (uaa->usegeneric) 167 return (UMATCH_GENERIC); 168 else 169 return (UMATCH_NONE); 170 } 171 172 USB_ATTACH(ugen) 173 { 174 USB_ATTACH_START(ugen, sc, uaa); 175 char devinfo[1024]; 176 usbd_status r; 177 int conf; 178 179 usbd_devinfo(uaa->device, 0, devinfo); 180 USB_ATTACH_SETUP; 181 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 182 183 sc->sc_udev = uaa->device; 184 conf = 1; /* XXX should not hard code 1 */ 185 r = ugen_set_config(sc, conf); 186 if (r != USBD_NORMAL_COMPLETION) { 187 printf("%s: setting configuration %d failed\n", 188 USBDEVNAME(sc->sc_dev), conf); 189 sc->sc_dying = 1; 190 USB_ATTACH_ERROR_RETURN; 191 } 192 USB_ATTACH_SUCCESS_RETURN; 193 } 194 195 int 196 ugen_set_config(sc, configno) 197 struct ugen_softc *sc; 198 int configno; 199 { 200 usbd_device_handle dev = sc->sc_udev; 201 usbd_interface_handle iface; 202 usb_endpoint_descriptor_t *ed; 203 struct ugen_endpoint *sce; 204 u_int8_t niface, nendpt; 205 int ifaceno, endptno, endpt; 206 usbd_status r; 207 int dir; 208 209 DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n", 210 USBDEVNAME(sc->sc_dev), configno, sc)); 211 if (usbd_get_config_descriptor(dev)->bConfigurationValue != configno) { 212 /* Avoid setting the current value. */ 213 r = usbd_set_config_no(dev, configno, 0); 214 if (r != USBD_NORMAL_COMPLETION) 215 return (r); 216 } 217 218 r = usbd_interface_count(dev, &niface); 219 if (r != USBD_NORMAL_COMPLETION) 220 return (r); 221 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints); 222 for (ifaceno = 0; ifaceno < niface; ifaceno++) { 223 DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno)); 224 r = usbd_device2interface_handle(dev, ifaceno, &iface); 225 if (r != USBD_NORMAL_COMPLETION) 226 return (r); 227 r = usbd_endpoint_count(iface, &nendpt); 228 if (r != USBD_NORMAL_COMPLETION) 229 return (r); 230 for (endptno = 0; endptno < nendpt; endptno++) { 231 ed = usbd_interface2endpoint_descriptor(iface,endptno); 232 endpt = ed->bEndpointAddress; 233 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 234 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 235 DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x" 236 "(%d,%d), sce=%p\n", 237 endptno, endpt, UE_GET_ADDR(endpt), 238 UE_GET_DIR(endpt), sce)); 239 sce->sc = sc; 240 sce->edesc = ed; 241 sce->iface = iface; 242 } 243 } 244 return (USBD_NORMAL_COMPLETION); 245 } 246 247 int 248 ugenopen(dev, flag, mode, p) 249 dev_t dev; 250 int flag; 251 int mode; 252 struct proc *p; 253 { 254 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 defined(__NetBSD__) || defined(__OpenBSD__) 307 if (clalloc(&sce->q, UGEN_IBSIZE, 0) == -1) 308 return (ENOMEM); 309 #elif defined(__FreeBSD__) 310 clist_alloc_cblocks(&sce->q, UGEN_IBSIZE, 0); 311 #endif 312 r = usbd_open_pipe_intr(sce->iface, 313 edesc->bEndpointAddress, 314 USBD_SHORT_XFER_OK, &sce->pipeh, sce, 315 sce->ibuf, isize, ugenintr); 316 if (r != USBD_NORMAL_COMPLETION) { 317 free(sce->ibuf, M_USBDEV); 318 #if defined(__NetBSD__) || defined(__OpenBSD__) 319 clfree(&sce->q); 320 #elif defined(__FreeBSD__) 321 clist_free_cblocks(&sce->q); 322 #endif 323 return (EIO); 324 } 325 DPRINTFN(5, ("ugenopen: interrupt open done\n")); 326 break; 327 case UE_BULK: 328 r = usbd_open_pipe(sce->iface, 329 edesc->bEndpointAddress, 0, 330 &sce->pipeh); 331 if (r != USBD_NORMAL_COMPLETION) 332 return (EIO); 333 break; 334 case UE_CONTROL: 335 case UE_ISOCHRONOUS: 336 return (EINVAL); 337 } 338 } 339 sc->sc_is_open[endpt] = 1; 340 return (0); 341 } 342 343 int 344 ugenclose(dev, flag, mode, p) 345 dev_t dev; 346 int flag; 347 int mode; 348 struct proc *p; 349 { 350 int endpt = UGENENDPOINT(dev); 351 struct ugen_softc *sc; 352 struct ugen_endpoint *sce; 353 int dir; 354 355 USB_GET_SC(ugen, UGENUNIT(dev), sc); 356 DPRINTFN(5, ("ugenclose: flag=%d, mode=%d, unit=%d, endpt=%d\n", 357 flag, mode, UGENUNIT(dev), endpt)); 358 359 #ifdef DIAGNOSTIC 360 if (!sc->sc_is_open[endpt]) { 361 printf("ugenclose: not open\n"); 362 return (EINVAL); 363 } 364 #endif 365 366 if (endpt == USB_CONTROL_ENDPOINT) { 367 DPRINTFN(5, ("ugenclose: close control\n")); 368 sc->sc_is_open[endpt] = 0; 369 return (0); 370 } 371 372 for (dir = OUT; dir <= IN; dir++) { 373 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 374 continue; 375 sce = &sc->sc_endpoints[endpt][dir]; 376 if (!sce || !sce->pipeh) 377 continue; 378 DPRINTFN(5, ("ugenclose: endpt=%d dir=%d sce=%p\n", 379 endpt, dir, sce)); 380 381 usbd_abort_pipe(sce->pipeh); 382 usbd_close_pipe(sce->pipeh); 383 sce->pipeh = 0; 384 385 if (sce->ibuf) { 386 free(sce->ibuf, M_USBDEV); 387 sce->ibuf = 0; 388 clfree(&sce->q); 389 } 390 } 391 sc->sc_is_open[endpt] = 0; 392 393 return (0); 394 } 395 396 int 397 ugen_do_read(sc, endpt, uio, flag) 398 struct ugen_softc *sc; 399 int endpt; 400 struct uio *uio; 401 int flag; 402 { 403 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 404 u_int32_t n, tn; 405 char buf[UGEN_BBSIZE]; 406 usbd_request_handle reqh; 407 usbd_status r; 408 int s; 409 int error = 0; 410 u_char buffer[UGEN_CHUNK]; 411 412 #ifdef __NetBSD__ 413 DPRINTFN(5, ("ugenread: %d:%d\n", sc->sc_dev.dv_unit, endpt)); 414 #endif 415 if (sc->sc_dying) 416 return (EIO); 417 418 #ifdef DIAGNOSTIC 419 if (!sce->edesc) { 420 printf("ugenread: no edesc\n"); 421 return (EIO); 422 } 423 if (!sce->pipeh) { 424 printf("ugenread: no pipe\n"); 425 return (EIO); 426 } 427 #endif 428 429 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 430 case UE_INTERRUPT: 431 /* Block until activity occured. */ 432 s = splusb(); 433 while (sce->q.c_cc == 0) { 434 if (flag & IO_NDELAY) { 435 splx(s); 436 return (EWOULDBLOCK); 437 } 438 sce->state |= UGEN_ASLP; 439 DPRINTFN(5, ("ugenread: sleep on %p\n", sc)); 440 error = tsleep(sce, PZERO | PCATCH, "ugenri", 0); 441 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 442 if (sc->sc_dying) 443 error = EIO; 444 if (error) { 445 sce->state &= ~UGEN_ASLP; 446 break; 447 } 448 } 449 splx(s); 450 451 /* Transfer as many chunks as possible. */ 452 while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) { 453 n = min(sce->q.c_cc, uio->uio_resid); 454 if (n > sizeof(buffer)) 455 n = sizeof(buffer); 456 457 /* Remove a small chunk from the input queue. */ 458 q_to_b(&sce->q, buffer, n); 459 DPRINTFN(5, ("ugenread: got %d chars\n", n)); 460 461 /* Copy the data to the user process. */ 462 error = uiomove(buffer, n, uio); 463 if (error) 464 break; 465 } 466 break; 467 case UE_BULK: 468 reqh = usbd_alloc_request(sc->sc_udev); 469 if (reqh == 0) 470 return (ENOMEM); 471 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 472 DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n)); 473 tn = n; 474 r = usbd_bulk_transfer( 475 reqh, sce->pipeh, 476 sce->state & UGEN_SHORT_OK ? 477 USBD_SHORT_XFER_OK : 0, 478 sce->timeout, buf, &tn, "ugenrb"); 479 if (r != USBD_NORMAL_COMPLETION) { 480 if (r == USBD_INTERRUPTED) 481 error = EINTR; 482 else if (r == USBD_TIMEOUT) 483 error = ETIMEDOUT; 484 else 485 error = EIO; 486 break; 487 } 488 DPRINTFN(1, ("ugenread: got %d bytes\n", tn)); 489 error = uiomove(buf, tn, uio); 490 if (error || tn < n) 491 break; 492 } 493 usbd_free_request(reqh); 494 break; 495 default: 496 return (ENXIO); 497 } 498 return (error); 499 } 500 501 int 502 ugenread(dev, uio, flag) 503 dev_t dev; 504 struct uio *uio; 505 int flag; 506 { 507 int endpt = UGENENDPOINT(dev); 508 struct ugen_softc *sc; 509 int error; 510 511 USB_GET_SC(ugen, UGENUNIT(dev), sc); 512 sc->sc_refcnt++; 513 error = ugen_do_read(sc, endpt, uio, flag); 514 if (--sc->sc_refcnt < 0) 515 usb_detach_wakeup(USBDEV(sc->sc_dev)); 516 return (error); 517 } 518 519 int 520 ugen_do_write(sc, endpt, uio, flag) 521 struct ugen_softc *sc; 522 int endpt; 523 struct uio *uio; 524 int flag; 525 { 526 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT]; 527 u_int32_t n; 528 int error = 0; 529 char buf[UGEN_BBSIZE]; 530 usbd_request_handle reqh; 531 usbd_status r; 532 533 if (sc->sc_dying) 534 return (EIO); 535 536 #ifdef DIAGNOSTIC 537 if (!sce->edesc) { 538 printf("ugenwrite: no edesc\n"); 539 return (EIO); 540 } 541 if (!sce->pipeh) { 542 printf("ugenwrite: no pipe\n"); 543 return (EIO); 544 } 545 #endif 546 547 DPRINTF(("ugenwrite\n")); 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 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 } 612 613 int 614 ugen_detach(self, flags) 615 device_ptr_t self; 616 int flags; 617 { 618 struct ugen_softc *sc = (struct ugen_softc *)self; 619 struct ugen_endpoint *sce; 620 int maj, mn; 621 int i, dir; 622 int s; 623 624 DPRINTF(("ugen_detach: sc=%p flags=%d\n", sc, flags)); 625 626 sc->sc_dying = 1; 627 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 628 for (i = 0; i < USB_MAX_ENDPOINTS; i++) { 629 for (dir = OUT; dir <= IN; dir++) { 630 sce = &sc->sc_endpoints[i][dir]; 631 if (sce && sce->pipeh) 632 usbd_abort_pipe(sce->pipeh); 633 } 634 } 635 636 s = splusb(); 637 if (--sc->sc_refcnt >= 0) { 638 /* Wake everyone */ 639 for (i = 0; i < USB_MAX_ENDPOINTS; i++) 640 wakeup(&sc->sc_endpoints[i][IN]); 641 /* Wait for processes to go away. */ 642 usb_detach_wait(USBDEV(sc->sc_dev)); 643 } 644 splx(s); 645 646 /* locate the major number */ 647 for (maj = 0; maj < nchrdev; maj++) 648 if (cdevsw[maj].d_open == ugenopen) 649 break; 650 651 /* Nuke the vnodes for any open instances (calls close). */ 652 mn = self->dv_unit * USB_MAX_ENDPOINTS; 653 vdevgone(maj, mn, mn + USB_MAX_ENDPOINTS - 1, VCHR); 654 655 return (0); 656 } 657 658 void 659 ugenintr(reqh, addr, status) 660 usbd_request_handle reqh; 661 usbd_private_handle addr; 662 usbd_status status; 663 { 664 struct ugen_endpoint *sce = addr; 665 /*struct ugen_softc *sc = sce->sc;*/ 666 u_int32_t count; 667 u_char *ibuf; 668 669 if (status == USBD_CANCELLED) 670 return; 671 672 if (status != USBD_NORMAL_COMPLETION) { 673 DPRINTF(("ugenintr: status=%d\n", status)); 674 usbd_clear_endpoint_stall_async(sce->pipeh); 675 return; 676 } 677 678 usbd_get_request_status(reqh, 0, 0, &count, 0); 679 ibuf = sce->ibuf; 680 681 DPRINTFN(5, ("ugenintr: reqh=%p status=%d count=%d\n", 682 reqh, status, count)); 683 DPRINTFN(5, (" data = %02x %02x %02x\n", 684 ibuf[0], ibuf[1], ibuf[2])); 685 686 (void)b_to_q(ibuf, count, &sce->q); 687 688 if (sce->state & UGEN_ASLP) { 689 sce->state &= ~UGEN_ASLP; 690 DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); 691 wakeup(sce); 692 } 693 selwakeup(&sce->rsel); 694 } 695 696 usbd_status 697 ugen_set_interface(sc, ifaceidx, altno) 698 struct ugen_softc *sc; 699 int ifaceidx, altno; 700 { 701 usbd_interface_handle iface; 702 usb_endpoint_descriptor_t *ed; 703 usbd_status r; 704 struct ugen_endpoint *sce; 705 u_int8_t niface, nendpt, endptno, endpt; 706 int dir; 707 708 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); 709 710 r = usbd_interface_count(sc->sc_udev, &niface); 711 if (r != USBD_NORMAL_COMPLETION) 712 return (r); 713 if (ifaceidx < 0 || ifaceidx >= niface) 714 return (USBD_INVAL); 715 716 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 717 if (r != USBD_NORMAL_COMPLETION) 718 return (r); 719 r = usbd_endpoint_count(iface, &nendpt); 720 if (r != USBD_NORMAL_COMPLETION) 721 return (r); 722 for (endptno = 0; endptno < nendpt; endptno++) { 723 ed = usbd_interface2endpoint_descriptor(iface,endptno); 724 endpt = ed->bEndpointAddress; 725 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 726 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 727 sce->sc = 0; 728 sce->edesc = 0; 729 sce->iface = 0; 730 } 731 732 /* change setting */ 733 r = usbd_set_interface(iface, altno); 734 if (r != USBD_NORMAL_COMPLETION) 735 return (r); 736 737 r = usbd_endpoint_count(iface, &nendpt); 738 if (r != USBD_NORMAL_COMPLETION) 739 return (r); 740 for (endptno = 0; endptno < nendpt; endptno++) { 741 ed = usbd_interface2endpoint_descriptor(iface,endptno); 742 endpt = ed->bEndpointAddress; 743 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 744 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 745 sce->sc = sc; 746 sce->edesc = ed; 747 sce->iface = iface; 748 } 749 return (0); 750 } 751 752 /* Retrieve a complete descriptor for a certain device and index. */ 753 usb_config_descriptor_t * 754 ugen_get_cdesc(sc, index, lenp) 755 struct ugen_softc *sc; 756 int index; 757 int *lenp; 758 { 759 usb_config_descriptor_t *cdesc, *tdesc, cdescr; 760 int len; 761 usbd_status r; 762 763 if (index == USB_CURRENT_CONFIG_INDEX) { 764 tdesc = usbd_get_config_descriptor(sc->sc_udev); 765 len = UGETW(tdesc->wTotalLength); 766 if (lenp) 767 *lenp = len; 768 cdesc = malloc(len, M_TEMP, M_WAITOK); 769 memcpy(cdesc, tdesc, len); 770 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); 771 } else { 772 r = usbd_get_config_desc(sc->sc_udev, index, &cdescr); 773 if (r != USBD_NORMAL_COMPLETION) 774 return (0); 775 len = UGETW(cdescr.wTotalLength); 776 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); 777 if (lenp) 778 *lenp = len; 779 cdesc = malloc(len, M_TEMP, M_WAITOK); 780 r = usbd_get_config_desc_full(sc->sc_udev, index, cdesc, len); 781 if (r != USBD_NORMAL_COMPLETION) { 782 free(cdesc, M_TEMP); 783 return (0); 784 } 785 } 786 return (cdesc); 787 } 788 789 int 790 ugen_get_alt_index(sc, ifaceidx) 791 struct ugen_softc *sc; 792 int ifaceidx; 793 { 794 usbd_interface_handle iface; 795 usbd_status r; 796 797 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 798 if (r != USBD_NORMAL_COMPLETION) 799 return (-1); 800 return (usbd_get_interface_altindex(iface)); 801 } 802 803 int 804 ugen_do_ioctl(sc, endpt, cmd, addr, flag, p) 805 struct ugen_softc *sc; 806 int endpt; 807 u_long cmd; 808 caddr_t addr; 809 int flag; 810 struct proc *p; 811 { 812 struct ugen_endpoint *sce; 813 usbd_status r; 814 usbd_interface_handle iface; 815 struct usb_config_desc *cd; 816 usb_config_descriptor_t *cdesc; 817 struct usb_interface_desc *id; 818 usb_interface_descriptor_t *idesc; 819 struct usb_endpoint_desc *ed; 820 usb_endpoint_descriptor_t *edesc; 821 struct usb_alt_interface *ai; 822 struct usb_string_desc *si; 823 u_int8_t conf, alt; 824 825 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 826 if (sc->sc_dying) 827 return (EIO); 828 829 switch (cmd) { 830 case FIONBIO: 831 /* All handled in the upper FS layer. */ 832 return (0); 833 case USB_SET_SHORT_XFER: 834 /* This flag only affects read */ 835 if (endpt == USB_CONTROL_ENDPOINT) 836 return (EINVAL); 837 sce = &sc->sc_endpoints[endpt][IN]; 838 #ifdef DIAGNOSTIC 839 if (!sce->pipeh) { 840 printf("ugenioctl: USB_SET_SHORT_XFER, no pipe\n"); 841 return (EIO); 842 } 843 #endif 844 if (*(int *)addr) 845 sce->state |= UGEN_SHORT_OK; 846 else 847 sce->state &= ~UGEN_SHORT_OK; 848 return (0); 849 case USB_SET_TIMEOUT: 850 sce = &sc->sc_endpoints[endpt][IN]; 851 #ifdef DIAGNOSTIC 852 if (!sce->pipeh) { 853 printf("ugenioctl: USB_SET_TIMEOUT, no pipe\n"); 854 return (EIO); 855 } 856 #endif 857 sce->timeout = *(int *)addr; 858 return (0); 859 default: 860 break; 861 } 862 863 if (endpt != USB_CONTROL_ENDPOINT) 864 return (EINVAL); 865 866 switch (cmd) { 867 #ifdef USB_DEBUG 868 case USB_SETDEBUG: 869 ugendebug = *(int *)addr; 870 break; 871 #endif 872 case USB_GET_CONFIG: 873 r = usbd_get_config(sc->sc_udev, &conf); 874 if (r != USBD_NORMAL_COMPLETION) 875 return (EIO); 876 *(int *)addr = conf; 877 break; 878 case USB_SET_CONFIG: 879 if (!(flag & FWRITE)) 880 return (EPERM); 881 r = ugen_set_config(sc, *(int *)addr); 882 if (r != USBD_NORMAL_COMPLETION) 883 return (EIO); 884 break; 885 case USB_GET_ALTINTERFACE: 886 ai = (struct usb_alt_interface *)addr; 887 r = usbd_device2interface_handle(sc->sc_udev, 888 ai->interface_index, &iface); 889 if (r != USBD_NORMAL_COMPLETION) 890 return (EINVAL); 891 idesc = usbd_get_interface_descriptor(iface); 892 if (!idesc) 893 return (EIO); 894 ai->alt_no = idesc->bAlternateSetting; 895 break; 896 case USB_SET_ALTINTERFACE: 897 if (!(flag & FWRITE)) 898 return (EPERM); 899 ai = (struct usb_alt_interface *)addr; 900 r = usbd_device2interface_handle(sc->sc_udev, 901 ai->interface_index, &iface); 902 if (r != USBD_NORMAL_COMPLETION) 903 return (EINVAL); 904 r = ugen_set_interface(sc, ai->interface_index, ai->alt_no); 905 if (r != USBD_NORMAL_COMPLETION) 906 return (EINVAL); 907 break; 908 case USB_GET_NO_ALT: 909 ai = (struct usb_alt_interface *)addr; 910 cdesc = ugen_get_cdesc(sc, ai->config_index, 0); 911 if (!cdesc) 912 return (EINVAL); 913 idesc = usbd_find_idesc(cdesc, ai->interface_index, 0); 914 if (!idesc) { 915 free(cdesc, M_TEMP); 916 return (EINVAL); 917 } 918 ai->alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); 919 free(cdesc, M_TEMP); 920 break; 921 case USB_GET_DEVICE_DESC: 922 *(usb_device_descriptor_t *)addr = 923 *usbd_get_device_descriptor(sc->sc_udev); 924 break; 925 case USB_GET_CONFIG_DESC: 926 cd = (struct usb_config_desc *)addr; 927 cdesc = ugen_get_cdesc(sc, cd->config_index, 0); 928 if (!cdesc) 929 return (EINVAL); 930 cd->desc = *cdesc; 931 free(cdesc, M_TEMP); 932 break; 933 case USB_GET_INTERFACE_DESC: 934 id = (struct usb_interface_desc *)addr; 935 cdesc = ugen_get_cdesc(sc, id->config_index, 0); 936 if (!cdesc) 937 return (EINVAL); 938 if (id->config_index == USB_CURRENT_CONFIG_INDEX && 939 id->alt_index == USB_CURRENT_ALT_INDEX) 940 alt = ugen_get_alt_index(sc, id->interface_index); 941 else 942 alt = id->alt_index; 943 idesc = usbd_find_idesc(cdesc, id->interface_index, alt); 944 if (!idesc) { 945 free(cdesc, M_TEMP); 946 return (EINVAL); 947 } 948 id->desc = *idesc; 949 free(cdesc, M_TEMP); 950 break; 951 case USB_GET_ENDPOINT_DESC: 952 ed = (struct usb_endpoint_desc *)addr; 953 cdesc = ugen_get_cdesc(sc, ed->config_index, 0); 954 if (!cdesc) 955 return (EINVAL); 956 if (ed->config_index == USB_CURRENT_CONFIG_INDEX && 957 ed->alt_index == USB_CURRENT_ALT_INDEX) 958 alt = ugen_get_alt_index(sc, ed->interface_index); 959 else 960 alt = ed->alt_index; 961 edesc = usbd_find_edesc(cdesc, ed->interface_index, 962 alt, ed->endpoint_index); 963 if (!edesc) { 964 free(cdesc, M_TEMP); 965 return (EINVAL); 966 } 967 ed->desc = *edesc; 968 free(cdesc, M_TEMP); 969 break; 970 case USB_GET_FULL_DESC: 971 { 972 int len; 973 struct iovec iov; 974 struct uio uio; 975 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 976 int error; 977 978 cdesc = ugen_get_cdesc(sc, fd->config_index, &len); 979 if (len > fd->size) 980 len = fd->size; 981 iov.iov_base = (caddr_t)fd->data; 982 iov.iov_len = len; 983 uio.uio_iov = &iov; 984 uio.uio_iovcnt = 1; 985 uio.uio_resid = len; 986 uio.uio_offset = 0; 987 uio.uio_segflg = UIO_USERSPACE; 988 uio.uio_rw = UIO_READ; 989 uio.uio_procp = p; 990 error = uiomove((caddr_t)cdesc, len, &uio); 991 free(cdesc, M_TEMP); 992 return (error); 993 } 994 case USB_GET_STRING_DESC: 995 si = (struct usb_string_desc *)addr; 996 r = usbd_get_string_desc(sc->sc_udev, si->string_index, 997 si->language_id, &si->desc); 998 if (r != USBD_NORMAL_COMPLETION) 999 return (EINVAL); 1000 break; 1001 case USB_DO_REQUEST: 1002 { 1003 struct usb_ctl_request *ur = (void *)addr; 1004 int len = UGETW(ur->request.wLength); 1005 struct iovec iov; 1006 struct uio uio; 1007 void *ptr = 0; 1008 usbd_status r; 1009 int error = 0; 1010 1011 if (!(flag & FWRITE)) 1012 return (EPERM); 1013 /* Avoid requests that would damage the bus integrity. */ 1014 if ((ur->request.bmRequestType == UT_WRITE_DEVICE && 1015 ur->request.bRequest == UR_SET_ADDRESS) || 1016 (ur->request.bmRequestType == UT_WRITE_DEVICE && 1017 ur->request.bRequest == UR_SET_CONFIG) || 1018 (ur->request.bmRequestType == UT_WRITE_INTERFACE && 1019 ur->request.bRequest == UR_SET_INTERFACE)) 1020 return (EINVAL); 1021 1022 if (len < 0 || len > 32767) 1023 return (EINVAL); 1024 if (len != 0) { 1025 iov.iov_base = (caddr_t)ur->data; 1026 iov.iov_len = len; 1027 uio.uio_iov = &iov; 1028 uio.uio_iovcnt = 1; 1029 uio.uio_resid = len; 1030 uio.uio_offset = 0; 1031 uio.uio_segflg = UIO_USERSPACE; 1032 uio.uio_rw = 1033 ur->request.bmRequestType & UT_READ ? 1034 UIO_READ : UIO_WRITE; 1035 uio.uio_procp = p; 1036 ptr = malloc(len, M_TEMP, M_WAITOK); 1037 if (uio.uio_rw == UIO_WRITE) { 1038 error = uiomove(ptr, len, &uio); 1039 if (error) 1040 goto ret; 1041 } 1042 } 1043 r = usbd_do_request_flags(sc->sc_udev, &ur->request, 1044 ptr, ur->flags, &ur->actlen); 1045 if (r != USBD_NORMAL_COMPLETION) { 1046 error = EIO; 1047 goto ret; 1048 } 1049 if (len != 0) { 1050 if (uio.uio_rw == UIO_READ) { 1051 error = uiomove(ptr, len, &uio); 1052 if (error) 1053 goto ret; 1054 } 1055 } 1056 ret: 1057 if (ptr) 1058 free(ptr, M_TEMP); 1059 return (error); 1060 } 1061 case USB_GET_DEVICEINFO: 1062 usbd_fill_deviceinfo(sc->sc_udev, 1063 (struct usb_device_info *)addr); 1064 break; 1065 default: 1066 return (EINVAL); 1067 } 1068 return (0); 1069 } 1070 1071 int 1072 ugenioctl(dev, cmd, addr, flag, p) 1073 dev_t dev; 1074 u_long cmd; 1075 caddr_t addr; 1076 int flag; 1077 struct proc *p; 1078 { 1079 int endpt = UGENENDPOINT(dev); 1080 struct ugen_softc *sc; 1081 int error; 1082 1083 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1084 sc->sc_refcnt++; 1085 error = ugen_do_ioctl(sc, endpt, cmd, addr, flag, p); 1086 if (--sc->sc_refcnt < 0) 1087 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1088 return (error); 1089 } 1090 1091 int 1092 ugenpoll(dev, events, p) 1093 dev_t dev; 1094 int events; 1095 struct proc *p; 1096 { 1097 struct ugen_softc *sc; 1098 struct ugen_endpoint *sce; 1099 int revents = 0; 1100 int s; 1101 1102 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1103 if (sc->sc_dying) 1104 return (EIO); 1105 1106 /* XXX always IN */ 1107 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 1108 #ifdef DIAGNOSTIC 1109 if (!sce->edesc) { 1110 printf("ugenwrite: no edesc\n"); 1111 return (EIO); 1112 } 1113 if (!sce->pipeh) { 1114 printf("ugenpoll: no pipe\n"); 1115 return (EIO); 1116 } 1117 #endif 1118 s = splusb(); 1119 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 1120 case UE_INTERRUPT: 1121 if (events & (POLLIN | POLLRDNORM)) { 1122 if (sce->q.c_cc > 0) 1123 revents |= events & (POLLIN | POLLRDNORM); 1124 else 1125 selrecord(p, &sce->rsel); 1126 } 1127 break; 1128 case UE_BULK: 1129 /* 1130 * We have no easy way of determining if a read will 1131 * yield any data or a write will happen. 1132 * Pretend they will. 1133 */ 1134 revents |= events & 1135 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 1136 break; 1137 default: 1138 break; 1139 } 1140 splx(s); 1141 return (revents); 1142 } 1143 1144 #if defined(__FreeBSD__) 1145 DEV_DRIVER_MODULE(ugen, uhub, ugen_driver, ugen_devclass, ugen_cdevsw, usbd_driver_load, 0); 1146 #endif 1147
Indexes created Fri Sep 26 08:10:20 GMT 2025