ugen.c revision 1.12
1 /* $NetBSD: ugen.c,v 1.12 1999/06/30 06:44:23 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__) 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) printf x 70 #define DPRINTFN(n,x) if (ugendebug>(n)) printf 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_OPEN 0x01 /* device is open */ 83 #define UGEN_ASLP 0x02 /* waiting for data */ 84 #define UGEN_SHORT_OK 0x04 /* short xfers are OK */ 85 usbd_pipe_handle pipeh; 86 struct clist q; 87 struct selinfo rsel; 88 void *ibuf; 89 }; 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 bdevice sc_dev; /* base device */ 97 struct usbd_device *sc_udev; 98 99 struct ugen_endpoint sc_endpoints[USB_MAX_ENDPOINTS][2]; 100 #define OUT 0 /* index order is important, from UE_OUT */ 101 #define IN 1 /* from UE_IN */ 102 103 int sc_refcnt; 104 u_char sc_dying; 105 }; 106 107 int ugenopen __P((dev_t, int, int, struct proc *)); 108 int ugenclose __P((dev_t, int, int, struct proc *)); 109 int ugenread __P((dev_t, struct uio *, int)); 110 int ugenwrite __P((dev_t, struct uio *, int)); 111 int ugenioctl __P((dev_t, u_long, caddr_t, int, struct proc *)); 112 int ugenpoll __P((dev_t, int, struct proc *)); 113 void ugenintr __P((usbd_request_handle reqh, usbd_private_handle addr, 114 usbd_status status)); 115 116 int ugen_do_read __P((struct ugen_softc *, int, struct uio *, int)); 117 int ugen_do_write __P((struct ugen_softc *, int, struct uio *, int)); 118 int ugen_do_ioctl __P((struct ugen_softc *, int, u_long, 119 caddr_t, int, struct proc *)); 120 int ugen_set_config __P((struct ugen_softc *sc, int configno)); 121 usb_config_descriptor_t *ugen_get_cdesc __P((struct ugen_softc *sc, int index, 122 int *lenp)); 123 usbd_status ugen_set_interface __P((struct ugen_softc *, int, int)); 124 int ugen_get_alt_index __P((struct ugen_softc *sc, int ifaceidx)); 125 126 #define UGENUNIT(n) ((minor(n) >> 4) & 0xf) 127 #define UGENENDPOINT(n) (minor(n) & 0xf) 128 #define UGENDEV(u, e) (makedev(0, ((u) << 4) | (e))) 129 130 USB_DECLARE_DRIVER(ugen); 131 132 USB_MATCH(ugen) 133 { 134 USB_MATCH_START(ugen, uaa); 135 136 if (uaa->usegeneric) 137 return (UMATCH_GENERIC); 138 else 139 return (UMATCH_NONE); 140 } 141 142 USB_ATTACH(ugen) 143 { 144 USB_ATTACH_START(ugen, sc, uaa); 145 char devinfo[1024]; 146 usbd_status r; 147 int conf; 148 149 usbd_devinfo(uaa->device, 0, devinfo); 150 USB_ATTACH_SETUP; 151 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 152 153 sc->sc_udev = uaa->device; 154 conf = 1; /* XXX should not hard code 1 */ 155 r = ugen_set_config(sc, conf); 156 if (r != USBD_NORMAL_COMPLETION) { 157 printf("%s: setting configuration %d failed\n", 158 USBDEVNAME(sc->sc_dev), conf); 159 sc->sc_dying = 1; 160 USB_ATTACH_ERROR_RETURN; 161 } 162 USB_ATTACH_SUCCESS_RETURN; 163 } 164 165 int 166 ugen_set_config(sc, configno) 167 struct ugen_softc *sc; 168 int configno; 169 { 170 usbd_device_handle dev = sc->sc_udev; 171 usbd_interface_handle iface; 172 usb_endpoint_descriptor_t *ed; 173 struct ugen_endpoint *sce; 174 u_int8_t niface, nendpt; 175 int ifaceno, endptno, endpt; 176 usbd_status r; 177 178 DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n", 179 USBDEVNAME(sc->sc_dev), configno, sc)); 180 if (usbd_get_config_descriptor(dev)->bConfigurationValue != configno) { 181 /* Avoid setting the current value. */ 182 r = usbd_set_config_no(dev, configno, 0); 183 if (r != USBD_NORMAL_COMPLETION) 184 return (r); 185 } 186 187 r = usbd_interface_count(dev, &niface); 188 if (r != USBD_NORMAL_COMPLETION) 189 return (r); 190 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints); 191 for (ifaceno = 0; ifaceno < niface; ifaceno++) { 192 DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno)); 193 r = usbd_device2interface_handle(dev, ifaceno, &iface); 194 if (r != USBD_NORMAL_COMPLETION) 195 return (r); 196 r = usbd_endpoint_count(iface, &nendpt); 197 if (r != USBD_NORMAL_COMPLETION) 198 return (r); 199 for (endptno = 0; endptno < nendpt; endptno++) { 200 ed = usbd_interface2endpoint_descriptor(iface,endptno); 201 endpt = ed->bEndpointAddress; 202 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)] 203 [UE_GET_IN(endpt)]; 204 DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x" 205 "(%d,%d), sce=%p\n", 206 endptno, endpt, UE_GET_ADDR(endpt), 207 UE_GET_IN(endpt), sce)); 208 sce->sc = sc; 209 sce->edesc = ed; 210 sce->iface = iface; 211 } 212 } 213 return (USBD_NORMAL_COMPLETION); 214 } 215 216 int 217 ugenopen(dev, flag, mode, p) 218 dev_t dev; 219 int flag; 220 int mode; 221 struct proc *p; 222 { 223 int unit = UGENUNIT(dev); 224 int endpt = UGENENDPOINT(dev); 225 usb_endpoint_descriptor_t *edesc; 226 struct ugen_endpoint *sce; 227 int dir, isize; 228 usbd_status r; 229 230 USB_GET_SC_OPEN(ugen, unit, sc); 231 DPRINTFN(5, ("ugenopen: flag=%d, mode=%d, unit=%d endpt=%d\n", 232 flag, mode, unit, endpt)); 233 234 if (sc->sc_dying) 235 return (ENXIO); 236 237 if (endpt == USB_CONTROL_ENDPOINT) { 238 /*if ((flag & (FWRITE|FREAD)) != (FWRITE|FREAD)) 239 return (EACCES);*/ 240 sce = &sc->sc_endpoints[USB_CONTROL_ENDPOINT][OUT]; 241 if (sce->state & UGEN_OPEN) 242 return (EBUSY); 243 } else { 244 switch (flag & (FWRITE|FREAD)) { 245 case FWRITE: 246 dir = OUT; 247 break; 248 case FREAD: 249 dir = IN; 250 break; 251 default: 252 return (EACCES); 253 } 254 sce = &sc->sc_endpoints[endpt][dir]; 255 DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n", 256 sc, endpt, dir, sce)); 257 if (sce->state & UGEN_OPEN) 258 return (EBUSY); 259 edesc = sce->edesc; 260 if (!edesc) 261 return (ENXIO); 262 switch (edesc->bmAttributes & UE_XFERTYPE) { 263 case UE_INTERRUPT: 264 isize = UGETW(edesc->wMaxPacketSize); 265 if (isize == 0) /* shouldn't happen */ 266 return (EINVAL); 267 sce->ibuf = malloc(isize, M_USBDEV, M_WAITOK); 268 DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n", 269 endpt, isize)); 270 #if defined(__NetBSD__) 271 if (clalloc(&sce->q, UGEN_IBSIZE, 0) == -1) 272 return (ENOMEM); 273 #elif defined(__FreeBSD__) 274 clist_alloc_cblocks(&sce->q, UGEN_IBSIZE, 0); 275 #endif 276 r = usbd_open_pipe_intr(sce->iface, 277 edesc->bEndpointAddress, 278 USBD_SHORT_XFER_OK, &sce->pipeh, sce, 279 sce->ibuf, isize, ugenintr); 280 if (r != USBD_NORMAL_COMPLETION) { 281 free(sce->ibuf, M_USBDEV); 282 #if defined(__NetBSD__) 283 clfree(&sce->q); 284 #elif defined(__FreeBSD__) 285 clist_free_cblocks(&sce->q); 286 #endif 287 return (EIO); 288 } 289 DPRINTFN(5, ("ugenopen: interrupt open done\n")); 290 break; 291 case UE_BULK: 292 r = usbd_open_pipe(sce->iface, 293 edesc->bEndpointAddress, 0, 294 &sce->pipeh); 295 if (r != USBD_NORMAL_COMPLETION) 296 return (EIO); 297 break; 298 case UE_CONTROL: 299 case UE_ISOCHRONOUS: 300 return (EINVAL); 301 } 302 } 303 sce->state |= UGEN_OPEN; 304 return (0); 305 } 306 307 int 308 ugenclose(dev, flag, mode, p) 309 dev_t dev; 310 int flag; 311 int mode; 312 struct proc *p; 313 { 314 USB_GET_SC(ugen, UGENUNIT(dev), sc); 315 int endpt = UGENENDPOINT(dev); 316 struct ugen_endpoint *sce; 317 int dir; 318 319 DPRINTFN(5, ("ugenclose: flag=%d, mode=%d\n", flag, mode)); 320 321 if (endpt == USB_CONTROL_ENDPOINT) { 322 DPRINTFN(5, ("ugenclose: close control\n")); 323 sc->sc_endpoints[endpt][OUT].state = 0; 324 return (0); 325 } 326 327 flag = FWRITE | FREAD; /* XXX bug if generic open/close */ 328 329 /* The open modes have been joined, so check for both modes. */ 330 for (dir = OUT; dir <= IN; dir++) { 331 if (flag & (dir == OUT ? FWRITE : FREAD)) { 332 sce = &sc->sc_endpoints[endpt][dir]; 333 if (!sce || !sce->pipeh || sce->state == 0) 334 continue; 335 DPRINTFN(5, ("ugenclose: endpt=%d dir=%d sce=%p\n", 336 endpt, dir, sce)); 337 sce->state = 0; 338 339 usbd_abort_pipe(sce->pipeh); 340 usbd_close_pipe(sce->pipeh); 341 sce->pipeh = 0; 342 343 if (sce->ibuf) { 344 free(sce->ibuf, M_USBDEV); 345 sce->ibuf = 0; 346 clfree(&sce->q); 347 } 348 } 349 } 350 351 return (0); 352 } 353 354 int 355 ugen_do_read(sc, endpt, uio, flag) 356 struct ugen_softc *sc; 357 int endpt; 358 struct uio *uio; 359 int flag; 360 { 361 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 362 u_int32_t n, tn; 363 char buf[UGEN_BBSIZE]; 364 usbd_request_handle reqh; 365 usbd_status r; 366 int s; 367 int error = 0; 368 u_char buffer[UGEN_CHUNK]; 369 370 DPRINTFN(5, ("ugenread: %d:%d\n", sc->sc_dev.dv_unit, endpt)); 371 if (sc->sc_dying) 372 return (EIO); 373 374 #ifdef DIAGNOSTIC 375 if (!sce->edesc) { 376 printf("ugenread: no edesc\n"); 377 return (EIO); 378 } 379 if (!sce->pipeh) { 380 printf("ugenread: no pipe\n"); 381 return (EIO); 382 } 383 #endif 384 385 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 386 case UE_INTERRUPT: 387 /* Block until activity occured. */ 388 s = splusb(); 389 while (sce->q.c_cc == 0) { 390 if (flag & IO_NDELAY) { 391 splx(s); 392 return (EWOULDBLOCK); 393 } 394 sce->state |= UGEN_ASLP; 395 DPRINTFN(5, ("ugenread: sleep on %p\n", sc)); 396 error = tsleep(sce, PZERO | PCATCH, "ugenri", 0); 397 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 398 if (sc->sc_dying) 399 error = EIO; 400 if (error) { 401 sce->state &= ~UGEN_ASLP; 402 break; 403 } 404 } 405 splx(s); 406 407 /* Transfer as many chunks as possible. */ 408 while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) { 409 n = min(sce->q.c_cc, uio->uio_resid); 410 if (n > sizeof(buffer)) 411 n = sizeof(buffer); 412 413 /* Remove a small chunk from the input queue. */ 414 q_to_b(&sce->q, buffer, n); 415 DPRINTFN(5, ("ugenread: got %d chars\n", n)); 416 417 /* Copy the data to the user process. */ 418 error = uiomove(buffer, n, uio); 419 if (error) 420 break; 421 } 422 break; 423 case UE_BULK: 424 reqh = usbd_alloc_request(); 425 if (reqh == 0) 426 return (ENOMEM); 427 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 428 DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n)); 429 tn = n; 430 r = usbd_bulk_transfer(reqh, sce->pipeh, 0, buf, 431 &tn, "ugenrb"); 432 if (r != USBD_NORMAL_COMPLETION) { 433 if (r == USBD_INTERRUPTED) 434 error = EINTR; 435 else 436 error = EIO; 437 break; 438 } 439 DPRINTFN(1, ("ugenread: got %d bytes\n", tn)); 440 error = uiomove(buf, tn, uio); 441 if (error || tn < n) 442 break; 443 } 444 usbd_free_request(reqh); 445 break; 446 default: 447 return (ENXIO); 448 } 449 return (error); 450 } 451 452 int 453 ugenread(dev, uio, flag) 454 dev_t dev; 455 struct uio *uio; 456 int flag; 457 { 458 USB_GET_SC(ugen, UGENUNIT(dev), sc); 459 int endpt = UGENENDPOINT(dev); 460 int error; 461 462 sc->sc_refcnt++; 463 error = ugen_do_read(sc, endpt, uio, flag); 464 if (--sc->sc_refcnt < 0) 465 usb_detach_wakeup(&sc->sc_dev); 466 return (error); 467 } 468 469 int 470 ugen_do_write(sc, endpt, uio, flag) 471 struct ugen_softc *sc; 472 int endpt; 473 struct uio *uio; 474 int flag; 475 { 476 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT]; 477 size_t n; 478 int error = 0; 479 char buf[UGEN_BBSIZE]; 480 usbd_request_handle reqh; 481 usbd_status r; 482 483 if (sc->sc_dying) 484 return (EIO); 485 486 #ifdef DIAGNOSTIC 487 if (!sce->edesc) { 488 printf("ugenwrite: no edesc\n"); 489 return (EIO); 490 } 491 if (!sce->pipeh) { 492 printf("ugenwrite: no pipe\n"); 493 return (EIO); 494 } 495 #endif 496 497 DPRINTF(("ugenwrite\n")); 498 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 499 case UE_BULK: 500 reqh = usbd_alloc_request(); 501 if (reqh == 0) 502 return (EIO); 503 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 504 error = uiomove(buf, n, uio); 505 if (error) 506 break; 507 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 508 r = usbd_bulk_transfer(reqh, sce->pipeh, 0, buf, 509 &n, "ugenwb"); 510 if (r != USBD_NORMAL_COMPLETION) { 511 if (r == USBD_INTERRUPTED) 512 error = EINTR; 513 else 514 error = EIO; 515 break; 516 } 517 } 518 usbd_free_request(reqh); 519 break; 520 default: 521 return (ENXIO); 522 } 523 return (error); 524 } 525 526 int 527 ugenwrite(dev, uio, flag) 528 dev_t dev; 529 struct uio *uio; 530 int flag; 531 { 532 USB_GET_SC(ugen, UGENUNIT(dev), sc); 533 int endpt = UGENENDPOINT(dev); 534 int error; 535 536 sc->sc_refcnt++; 537 error = ugen_do_write(sc, endpt, uio, flag); 538 if (--sc->sc_refcnt < 0) 539 usb_detach_wakeup(&sc->sc_dev); 540 return (error); 541 } 542 543 int 544 ugen_activate(self, act) 545 struct device *self; 546 enum devact act; 547 { 548 return (0); 549 } 550 551 int 552 ugen_detach(self, flags) 553 struct device *self; 554 int flags; 555 { 556 struct ugen_softc *sc = (struct ugen_softc *)self; 557 struct ugen_endpoint *sce; 558 int maj, mn; 559 int i, dir; 560 int s; 561 562 DPRINTF(("ugen_detach: sc=%p flags=%d\n", sc, flags)); 563 564 sc->sc_dying = 1; 565 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 566 for (i = 0; i < USB_MAX_ENDPOINTS; i++) { 567 for (dir = OUT; dir <= IN; dir++) { 568 sce = &sc->sc_endpoints[i][dir]; 569 if (sce && sce->pipeh) 570 usbd_abort_pipe(sce->pipeh); 571 } 572 } 573 574 s = splusb(); 575 if (--sc->sc_refcnt >= 0) { 576 /* Wake everyone */ 577 for (i = 0; i < USB_MAX_ENDPOINTS; i++) 578 wakeup(&sc->sc_endpoints[i][IN]); 579 /* Wait for processes to go away. */ 580 usb_detach_wait(&sc->sc_dev); 581 } 582 splx(s); 583 584 /* locate the major number */ 585 for (maj = 0; maj < nchrdev; maj++) 586 if (cdevsw[maj].d_open == ugenopen) 587 break; 588 589 /* Nuke the vnodes for any open instances (calls close). */ 590 mn = self->dv_unit * USB_MAX_ENDPOINTS; 591 vdevgone(maj, mn, mn + USB_MAX_ENDPOINTS - 1, VCHR); 592 593 return (0); 594 } 595 596 void 597 ugenintr(reqh, addr, status) 598 usbd_request_handle reqh; 599 usbd_private_handle addr; 600 usbd_status status; 601 { 602 struct ugen_endpoint *sce = addr; 603 /*struct ugen_softc *sc = sce->sc;*/ 604 usbd_private_handle priv; 605 void *buffer; 606 u_int32_t count; 607 usbd_status xstatus; 608 u_char *ibuf; 609 610 if (status == USBD_CANCELLED) 611 return; 612 613 if (status != USBD_NORMAL_COMPLETION) { 614 DPRINTF(("ugenintr: status=%d\n", status)); 615 usbd_clear_endpoint_stall_async(sce->pipeh); 616 return; 617 } 618 619 (void)usbd_get_request_status(reqh, &priv, &buffer, &count, &xstatus); 620 ibuf = sce->ibuf; 621 622 DPRINTFN(5, ("ugenintr: reqh=%p status=%d count=%d\n", 623 reqh, xstatus, count)); 624 DPRINTFN(5, (" data = %02x %02x %02x\n", 625 ibuf[0], ibuf[1], ibuf[2])); 626 627 (void)b_to_q(ibuf, count, &sce->q); 628 629 if (sce->state & UGEN_ASLP) { 630 sce->state &= ~UGEN_ASLP; 631 DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); 632 wakeup(sce); 633 } 634 selwakeup(&sce->rsel); 635 } 636 637 usbd_status 638 ugen_set_interface(sc, ifaceidx, altno) 639 struct ugen_softc *sc; 640 int ifaceidx, altno; 641 { 642 usbd_interface_handle iface; 643 usb_endpoint_descriptor_t *ed; 644 usbd_status r; 645 struct ugen_endpoint *sce; 646 u_int8_t niface, nendpt, endptno, endpt; 647 648 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); 649 650 r = usbd_interface_count(sc->sc_udev, &niface); 651 if (r != USBD_NORMAL_COMPLETION) 652 return (r); 653 if (ifaceidx < 0 || ifaceidx >= niface) 654 return (USBD_INVAL); 655 656 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 657 if (r != USBD_NORMAL_COMPLETION) 658 return (r); 659 r = usbd_endpoint_count(iface, &nendpt); 660 if (r != USBD_NORMAL_COMPLETION) 661 return (r); 662 for (endptno = 0; endptno < nendpt; endptno++) { 663 ed = usbd_interface2endpoint_descriptor(iface,endptno); 664 endpt = ed->bEndpointAddress; 665 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][UE_GET_IN(endpt)]; 666 sce->sc = 0; 667 sce->edesc = 0; 668 sce->iface = 0; 669 } 670 671 /* change setting */ 672 r = usbd_set_interface(iface, altno); 673 if (r != USBD_NORMAL_COMPLETION) 674 return (r); 675 676 r = usbd_endpoint_count(iface, &nendpt); 677 if (r != USBD_NORMAL_COMPLETION) 678 return (r); 679 for (endptno = 0; endptno < nendpt; endptno++) { 680 ed = usbd_interface2endpoint_descriptor(iface,endptno); 681 endpt = ed->bEndpointAddress; 682 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][UE_GET_IN(endpt)]; 683 sce->sc = sc; 684 sce->edesc = ed; 685 sce->iface = iface; 686 } 687 return (0); 688 } 689 690 /* Retrieve a complete descriptor for a certain device and index. */ 691 usb_config_descriptor_t * 692 ugen_get_cdesc(sc, index, lenp) 693 struct ugen_softc *sc; 694 int index; 695 int *lenp; 696 { 697 usb_config_descriptor_t *cdesc, *tdesc, cdescr; 698 int len; 699 usbd_status r; 700 701 if (index == USB_CURRENT_CONFIG_INDEX) { 702 tdesc = usbd_get_config_descriptor(sc->sc_udev); 703 len = UGETW(tdesc->wTotalLength); 704 if (lenp) 705 *lenp = len; 706 cdesc = malloc(len, M_TEMP, M_WAITOK); 707 memcpy(cdesc, tdesc, len); 708 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); 709 } else { 710 r = usbd_get_config_desc(sc->sc_udev, index, &cdescr); 711 if (r != USBD_NORMAL_COMPLETION) 712 return (0); 713 len = UGETW(cdescr.wTotalLength); 714 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); 715 if (lenp) 716 *lenp = len; 717 cdesc = malloc(len, M_TEMP, M_WAITOK); 718 r = usbd_get_config_desc_full(sc->sc_udev, index, cdesc, len); 719 if (r != USBD_NORMAL_COMPLETION) { 720 free(cdesc, M_TEMP); 721 return (0); 722 } 723 } 724 return (cdesc); 725 } 726 727 int 728 ugen_get_alt_index(sc, ifaceidx) 729 struct ugen_softc *sc; 730 int ifaceidx; 731 { 732 usbd_interface_handle iface; 733 usbd_status r; 734 735 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 736 if (r != USBD_NORMAL_COMPLETION) 737 return (-1); 738 return (usbd_get_interface_altindex(iface)); 739 } 740 741 int 742 ugen_do_ioctl(sc, endpt, cmd, addr, flag, p) 743 struct ugen_softc *sc; 744 int endpt; 745 u_long cmd; 746 caddr_t addr; 747 int flag; 748 struct proc *p; 749 { 750 struct ugen_endpoint *sce; 751 usbd_status r; 752 usbd_interface_handle iface; 753 struct usb_config_desc *cd; 754 usb_config_descriptor_t *cdesc; 755 struct usb_interface_desc *id; 756 usb_interface_descriptor_t *idesc; 757 struct usb_endpoint_desc *ed; 758 usb_endpoint_descriptor_t *edesc; 759 struct usb_alt_interface *ai; 760 struct usb_string_desc *si; 761 u_int8_t conf, alt; 762 763 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 764 if (sc->sc_dying) 765 return (EIO); 766 767 switch (cmd) { 768 case FIONBIO: 769 /* All handled in the upper FS layer. */ 770 return (0); 771 case USB_SET_SHORT_XFER: 772 /* This flag only affects read */ 773 sce = &sc->sc_endpoints[endpt][IN]; 774 #ifdef DIAGNOSTIC 775 if (!sce->pipeh) { 776 printf("ugenioctl: no pipe\n"); 777 return (EIO); 778 } 779 #endif 780 if (*(int *)addr) 781 sce->state |= UGEN_SHORT_OK; 782 else 783 sce->state &= ~UGEN_SHORT_OK; 784 return (0); 785 default: 786 break; 787 } 788 789 if (endpt != USB_CONTROL_ENDPOINT) 790 return (EINVAL); 791 792 switch (cmd) { 793 #ifdef USB_DEBUG 794 case USB_SETDEBUG: 795 ugendebug = *(int *)addr; 796 break; 797 #endif 798 case USB_GET_CONFIG: 799 r = usbd_get_config(sc->sc_udev, &conf); 800 if (r != USBD_NORMAL_COMPLETION) 801 return (EIO); 802 *(int *)addr = conf; 803 break; 804 case USB_SET_CONFIG: 805 if (!(flag & FWRITE)) 806 return (EPERM); 807 r = ugen_set_config(sc, *(int *)addr); 808 if (r != USBD_NORMAL_COMPLETION) 809 return (EIO); 810 break; 811 case USB_GET_ALTINTERFACE: 812 ai = (struct usb_alt_interface *)addr; 813 r = usbd_device2interface_handle(sc->sc_udev, 814 ai->interface_index, &iface); 815 if (r != USBD_NORMAL_COMPLETION) 816 return (EINVAL); 817 idesc = usbd_get_interface_descriptor(iface); 818 if (!idesc) 819 return (EIO); 820 ai->alt_no = idesc->bAlternateSetting; 821 break; 822 case USB_SET_ALTINTERFACE: 823 if (!(flag & FWRITE)) 824 return (EPERM); 825 ai = (struct usb_alt_interface *)addr; 826 r = usbd_device2interface_handle(sc->sc_udev, 827 ai->interface_index, &iface); 828 if (r != USBD_NORMAL_COMPLETION) 829 return (EINVAL); 830 r = ugen_set_interface(sc, ai->interface_index, ai->alt_no); 831 if (r != USBD_NORMAL_COMPLETION) 832 return (EINVAL); 833 break; 834 case USB_GET_NO_ALT: 835 ai = (struct usb_alt_interface *)addr; 836 cdesc = ugen_get_cdesc(sc, ai->config_index, 0); 837 if (!cdesc) 838 return (EINVAL); 839 idesc = usbd_find_idesc(cdesc, ai->interface_index, 0); 840 if (!idesc) { 841 free(cdesc, M_TEMP); 842 return (EINVAL); 843 } 844 ai->alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); 845 free(cdesc, M_TEMP); 846 break; 847 case USB_GET_DEVICE_DESC: 848 *(usb_device_descriptor_t *)addr = 849 *usbd_get_device_descriptor(sc->sc_udev); 850 break; 851 case USB_GET_CONFIG_DESC: 852 cd = (struct usb_config_desc *)addr; 853 cdesc = ugen_get_cdesc(sc, cd->config_index, 0); 854 if (!cdesc) 855 return (EINVAL); 856 cd->desc = *cdesc; 857 free(cdesc, M_TEMP); 858 break; 859 case USB_GET_INTERFACE_DESC: 860 id = (struct usb_interface_desc *)addr; 861 cdesc = ugen_get_cdesc(sc, id->config_index, 0); 862 if (!cdesc) 863 return (EINVAL); 864 if (id->config_index == USB_CURRENT_CONFIG_INDEX && 865 id->alt_index == USB_CURRENT_ALT_INDEX) 866 alt = ugen_get_alt_index(sc, id->interface_index); 867 else 868 alt = id->alt_index; 869 idesc = usbd_find_idesc(cdesc, id->interface_index, alt); 870 if (!idesc) { 871 free(cdesc, M_TEMP); 872 return (EINVAL); 873 } 874 id->desc = *idesc; 875 free(cdesc, M_TEMP); 876 break; 877 case USB_GET_ENDPOINT_DESC: 878 ed = (struct usb_endpoint_desc *)addr; 879 cdesc = ugen_get_cdesc(sc, ed->config_index, 0); 880 if (!cdesc) 881 return (EINVAL); 882 if (ed->config_index == USB_CURRENT_CONFIG_INDEX && 883 ed->alt_index == USB_CURRENT_ALT_INDEX) 884 alt = ugen_get_alt_index(sc, ed->interface_index); 885 else 886 alt = ed->alt_index; 887 edesc = usbd_find_edesc(cdesc, ed->interface_index, 888 alt, ed->endpoint_index); 889 if (!edesc) { 890 free(cdesc, M_TEMP); 891 return (EINVAL); 892 } 893 ed->desc = *edesc; 894 free(cdesc, M_TEMP); 895 break; 896 case USB_GET_FULL_DESC: 897 { 898 int len; 899 struct iovec iov; 900 struct uio uio; 901 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 902 int error; 903 904 cdesc = ugen_get_cdesc(sc, fd->config_index, &len); 905 if (len > fd->size) 906 len = fd->size; 907 iov.iov_base = (caddr_t)fd->data; 908 iov.iov_len = len; 909 uio.uio_iov = &iov; 910 uio.uio_iovcnt = 1; 911 uio.uio_resid = len; 912 uio.uio_offset = 0; 913 uio.uio_segflg = UIO_USERSPACE; 914 uio.uio_rw = UIO_READ; 915 uio.uio_procp = p; 916 error = uiomove(cdesc, len, &uio); 917 free(cdesc, M_TEMP); 918 return (error); 919 } 920 case USB_GET_STRING_DESC: 921 si = (struct usb_string_desc *)addr; 922 r = usbd_get_string_desc(sc->sc_udev, si->string_index, 923 si->language_id, &si->desc); 924 if (r != USBD_NORMAL_COMPLETION) 925 return (EINVAL); 926 break; 927 case USB_DO_REQUEST: 928 { 929 struct usb_ctl_request *ur = (void *)addr; 930 int len = UGETW(ur->request.wLength); 931 struct iovec iov; 932 struct uio uio; 933 void *ptr = 0; 934 usbd_status r; 935 int error = 0; 936 937 if (!(flag & FWRITE)) 938 return (EPERM); 939 /* Avoid requests that would damage the bus integrity. */ 940 if ((ur->request.bmRequestType == UT_WRITE_DEVICE && 941 ur->request.bRequest == UR_SET_ADDRESS) || 942 (ur->request.bmRequestType == UT_WRITE_DEVICE && 943 ur->request.bRequest == UR_SET_CONFIG) || 944 (ur->request.bmRequestType == UT_WRITE_INTERFACE && 945 ur->request.bRequest == UR_SET_INTERFACE)) 946 return (EINVAL); 947 948 if (len < 0 || len > 32767) 949 return (EINVAL); 950 if (len != 0) { 951 iov.iov_base = (caddr_t)ur->data; 952 iov.iov_len = len; 953 uio.uio_iov = &iov; 954 uio.uio_iovcnt = 1; 955 uio.uio_resid = len; 956 uio.uio_offset = 0; 957 uio.uio_segflg = UIO_USERSPACE; 958 uio.uio_rw = 959 ur->request.bmRequestType & UT_READ ? 960 UIO_READ : UIO_WRITE; 961 uio.uio_procp = p; 962 ptr = malloc(len, M_TEMP, M_WAITOK); 963 if (uio.uio_rw == UIO_WRITE) { 964 error = uiomove(ptr, len, &uio); 965 if (error) 966 goto ret; 967 } 968 } 969 r = usbd_do_request_flags(sc->sc_udev, &ur->request, 970 ptr, ur->flags, &ur->actlen); 971 if (r != USBD_NORMAL_COMPLETION) { 972 error = EIO; 973 goto ret; 974 } 975 if (len != 0) { 976 if (uio.uio_rw == UIO_READ) { 977 error = uiomove(ptr, len, &uio); 978 if (error) 979 goto ret; 980 } 981 } 982 ret: 983 if (ptr) 984 free(ptr, M_TEMP); 985 return (error); 986 } 987 case USB_GET_DEVICEINFO: 988 usbd_fill_deviceinfo(sc->sc_udev, 989 (struct usb_device_info *)addr); 990 break; 991 default: 992 return (EINVAL); 993 } 994 return (0); 995 } 996 997 int 998 ugenioctl(dev, cmd, addr, flag, p) 999 dev_t dev; 1000 u_long cmd; 1001 caddr_t addr; 1002 int flag; 1003 struct proc *p; 1004 { 1005 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1006 int endpt = UGENENDPOINT(dev); 1007 int error; 1008 1009 sc->sc_refcnt++; 1010 error = ugen_do_ioctl(sc, endpt, cmd, addr, flag, p); 1011 if (--sc->sc_refcnt < 0) 1012 usb_detach_wakeup(&sc->sc_dev); 1013 return (error); 1014 } 1015 1016 int 1017 ugenpoll(dev, events, p) 1018 dev_t dev; 1019 int events; 1020 struct proc *p; 1021 { 1022 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1023 struct ugen_endpoint *sce; 1024 int revents = 0; 1025 int s; 1026 1027 if (sc->sc_dying) 1028 return (EIO); 1029 1030 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 1031 #ifdef DIAGNOSTIC 1032 if (!sce->edesc) { 1033 printf("ugenwrite: no edesc\n"); 1034 return (EIO); 1035 } 1036 if (!sce->pipeh) { 1037 printf("ugenpoll: no pipe\n"); 1038 return (EIO); 1039 } 1040 #endif 1041 s = splusb(); 1042 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 1043 case UE_INTERRUPT: 1044 if (events & (POLLIN | POLLRDNORM)) { 1045 if (sce->q.c_cc > 0) 1046 revents |= events & (POLLIN | POLLRDNORM); 1047 else 1048 selrecord(p, &sce->rsel); 1049 } 1050 break; 1051 case UE_BULK: 1052 /* 1053 * We have no easy way of determining if a read will 1054 * yield any data or a write will happen. 1055 * Pretend they will. 1056 */ 1057 revents |= events & 1058 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 1059 break; 1060 default: 1061 break; 1062 } 1063 splx(s); 1064 return (revents); 1065 } 1066 1067 #if defined(__FreeBSD__) 1068 DRIVER_MODULE(ugen, usb, ugen_driver, ugen_devclass, usbd_driver_load, 0); 1069 #endif 1070
Indexes created Fri Sep 26 20:09:58 GMT 2025