ugen.c revision 1.6
1 /* $NetBSD: ugen.c,v 1.6 1998/12/29 03:13:10 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 #include <sys/device.h> 46 #include <sys/ioctl.h> 47 #include <sys/tty.h> 48 #include <sys/file.h> 49 #include <sys/select.h> 50 #include <sys/proc.h> 51 #include <sys/vnode.h> 52 #include <sys/device.h> 53 #include <sys/poll.h> 54 55 #include <dev/usb/usb.h> 56 #include <dev/usb/usbdi.h> 57 #include <dev/usb/usbdi_util.h> 58 59 #ifdef USB_DEBUG 60 #define DPRINTF(x) if (ugendebug) printf x 61 #define DPRINTFN(n,x) if (ugendebug>(n)) printf x 62 int ugendebug = 0; 63 #else 64 #define DPRINTF(x) 65 #define DPRINTFN(n,x) 66 #endif 67 68 struct ugen_endpoint { 69 struct ugen_softc *sc; 70 usb_endpoint_descriptor_t *edesc; 71 usbd_interface_handle iface; 72 int state; 73 #define UGEN_OPEN 0x01 /* device is open */ 74 #define UGEN_ASLP 0x02 /* waiting for data */ 75 usbd_pipe_handle pipeh; 76 struct clist q; 77 struct selinfo rsel; 78 void *ibuf; 79 }; 80 81 #define UGEN_CHUNK 128 /* chunk size for read */ 82 #define UGEN_IBSIZE 1020 /* buffer size */ 83 #define UGEN_BBSIZE 1024 84 85 struct ugen_softc { 86 struct device sc_dev; /* base device */ 87 struct usbd_device *sc_udev; 88 89 struct ugen_endpoint sc_endpoints[USB_MAX_ENDPOINTS][2]; 90 #define OUT 0 /* index order is important, from UE_OUT */ 91 #define IN 1 /* from UE_IN */ 92 93 int sc_disconnected; /* device is gone */ 94 }; 95 96 int ugen_match __P((struct device *, struct cfdata *, void *)); 97 void ugen_attach __P((struct device *, struct device *, void *)); 98 99 int ugenopen __P((dev_t, int, int, struct proc *)); 100 int ugenclose __P((dev_t, int, int, struct proc *p)); 101 int ugenread __P((dev_t, struct uio *uio, int)); 102 int ugenwrite __P((dev_t, struct uio *uio, int)); 103 int ugenioctl __P((dev_t, u_long, caddr_t, int, struct proc *)); 104 int ugenpoll __P((dev_t, int, struct proc *)); 105 void ugenintr __P((usbd_request_handle reqh, usbd_private_handle addr, 106 usbd_status status)); 107 void ugen_disco __P((void *)); 108 109 int ugen_set_config __P((struct ugen_softc *sc, int configno)); 110 usb_config_descriptor_t *ugen_get_cdesc __P((struct ugen_softc *sc, int index, 111 int *lenp)); 112 usbd_status ugen_set_interface __P((struct ugen_softc *, int, int)); 113 int ugen_get_alt_index __P((struct ugen_softc *sc, int ifaceidx)); 114 115 #define UGENUNIT(n) (((n) >> 4) & 0xf) 116 #define UGENENDPOINT(n) ((n) & 0xf) 117 118 USB_DECLARE_DRIVER(ugen); 119 120 USB_MATCH(ugen) 121 { 122 USB_MATCH_START(ugen, uaa); 123 124 if (uaa->usegeneric) 125 return (UMATCH_GENERIC); 126 else 127 return (UMATCH_NONE); 128 } 129 130 USB_ATTACH(ugen) 131 { 132 USB_ATTACH_START(ugen, sc, uaa); 133 char devinfo[1024]; 134 usbd_status r; 135 136 usbd_devinfo(uaa->device, 0, devinfo); 137 USB_ATTACH_SETUP; 138 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 139 140 sc->sc_udev = uaa->device; 141 r = ugen_set_config(sc, 1); /* XXX 1 */ 142 if (r != USBD_NORMAL_COMPLETION) { 143 printf("%s: setting configuration 1 failed\n", 144 USBDEVNAME(sc->sc_dev)); 145 sc->sc_disconnected = 1; 146 USB_ATTACH_ERROR_RETURN; 147 } 148 USB_ATTACH_SUCCESS_RETURN; 149 } 150 151 int 152 ugen_set_config(sc, configno) 153 struct ugen_softc *sc; 154 int configno; 155 { 156 usbd_device_handle dev = sc->sc_udev; 157 usbd_interface_handle iface; 158 usb_endpoint_descriptor_t *ed; 159 struct ugen_endpoint *sce; 160 u_int8_t niface, nendpt; 161 int ifaceno, endptno, endpt; 162 usbd_status r; 163 164 DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n", 165 USBDEVNAME(sc->sc_dev), configno, sc)); 166 r = usbd_set_config_no(dev, configno, 0); 167 if (r != USBD_NORMAL_COMPLETION) 168 return (r); 169 170 r = usbd_interface_count(dev, &niface); 171 if (r != USBD_NORMAL_COMPLETION) 172 return (r); 173 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints); 174 for (ifaceno = 0; ifaceno < niface; ifaceno++) { 175 DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno)); 176 r = usbd_device2interface_handle(dev, ifaceno, &iface); 177 if (r != USBD_NORMAL_COMPLETION) 178 return (r); 179 r = usbd_endpoint_count(iface, &nendpt); 180 if (r != USBD_NORMAL_COMPLETION) 181 return (r); 182 for (endptno = 0; endptno < nendpt; endptno++) { 183 ed = usbd_interface2endpoint_descriptor(iface,endptno); 184 endpt = ed->bEndpointAddress; 185 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)] 186 [UE_GET_IN(endpt)]; 187 DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x" 188 "(%d,%d), sce=%p\n", 189 endptno, endpt, UE_GET_ADDR(endpt), 190 UE_GET_IN(endpt), sce)); 191 sce->sc = sc; 192 sce->edesc = ed; 193 sce->iface = iface; 194 } 195 } 196 return (USBD_NORMAL_COMPLETION); 197 } 198 199 void 200 ugen_disco(p) 201 void *p; 202 { 203 struct ugen_softc *sc = p; 204 sc->sc_disconnected = 1; 205 } 206 207 int 208 ugenopen(dev, flag, mode, p) 209 dev_t dev; 210 int flag; 211 int mode; 212 struct proc *p; 213 { 214 int unit = UGENUNIT(dev); 215 int endpt = UGENENDPOINT(dev); 216 usb_endpoint_descriptor_t *edesc; 217 struct ugen_softc *sc; 218 struct ugen_endpoint *sce; 219 int dir, isize; 220 usbd_status r; 221 222 DPRINTFN(5, ("ugenopen: flag=%d, unit=%d endpt=%d\n", 223 flag, unit, endpt)); 224 if (unit >= ugen_cd.cd_ndevs) 225 return (ENXIO); 226 sc = ugen_cd.cd_devs[unit]; 227 if (!sc) 228 return (ENXIO); 229 230 if (sc->sc_disconnected) 231 return (EIO); 232 233 if (endpt == USB_CONTROL_ENDPOINT) { 234 /*if ((flag & (FWRITE|FREAD)) != (FWRITE|FREAD)) 235 return (EACCES);*/ 236 sce = &sc->sc_endpoints[USB_CONTROL_ENDPOINT][OUT]; 237 if (sce->state & UGEN_OPEN) 238 return (EBUSY); 239 } else { 240 switch (flag & (FWRITE|FREAD)) { 241 case FWRITE: 242 dir = OUT; 243 break; 244 case FREAD: 245 dir = IN; 246 break; 247 default: 248 return (EACCES); 249 } 250 sce = &sc->sc_endpoints[endpt][dir]; 251 DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n", 252 sc, endpt, dir, sce)); 253 if (sce->state & UGEN_OPEN) 254 return (EBUSY); 255 edesc = sce->edesc; 256 if (!edesc) 257 return (ENXIO); 258 switch (edesc->bmAttributes & UE_XFERTYPE) { 259 case UE_INTERRUPT: 260 isize = UGETW(edesc->wMaxPacketSize); 261 if (isize == 0) /* shouldn't happen */ 262 return (EINVAL); 263 sce->ibuf = malloc(isize, M_USB, M_NOWAIT); 264 DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n", 265 endpt, isize)); 266 if (clalloc(&sce->q, UGEN_IBSIZE, 0) == -1) 267 return (ENOMEM); 268 r = usbd_open_pipe_intr(sce->iface, 269 edesc->bEndpointAddress, 270 USBD_SHORT_XFER_OK, &sce->pipeh, sce, 271 sce->ibuf, isize, ugenintr); 272 if (r != USBD_NORMAL_COMPLETION) { 273 free(sce->ibuf, M_USB); 274 clfree(&sce->q); 275 return (EIO); 276 } 277 usbd_set_disco(sce->pipeh, ugen_disco, sc); 278 DPRINTFN(5, ("ugenopen: interrupt open done\n")); 279 break; 280 case UE_BULK: 281 r = usbd_open_pipe(sce->iface, 282 edesc->bEndpointAddress, 0, 283 &sce->pipeh); 284 if (r != USBD_NORMAL_COMPLETION) 285 return (EIO); 286 break; 287 case UE_CONTROL: 288 case UE_ISOCHRONOUS: 289 return (EINVAL); 290 } 291 } 292 sce->state |= UGEN_OPEN; 293 return (0); 294 } 295 296 int 297 ugenclose(dev, flag, mode, p) 298 dev_t dev; 299 int flag; 300 int mode; 301 struct proc *p; 302 { 303 struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)]; 304 int endpt = UGENENDPOINT(dev); 305 struct ugen_endpoint *sce; 306 int dir; 307 308 DPRINTFN(5, ("ugenclose\n")); 309 if (sc->sc_disconnected) 310 return (EIO); 311 312 if (endpt == USB_CONTROL_ENDPOINT) { 313 sc->sc_endpoints[endpt][OUT].state &= ~UGEN_OPEN; 314 return (0); 315 } 316 dir = flag & FWRITE ? OUT : IN; 317 sce = &sc->sc_endpoints[endpt][dir]; 318 sce->state &= ~UGEN_OPEN; 319 320 usbd_abort_pipe(sce->pipeh); 321 usbd_close_pipe(sce->pipeh); 322 323 if (sce->ibuf) { 324 free(sce->ibuf, M_USB); 325 sce->ibuf = 0; 326 } 327 328 return (0); 329 } 330 331 int 332 ugenread(dev, uio, flag) 333 dev_t dev; 334 struct uio *uio; 335 int flag; 336 { 337 struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)]; 338 int endpt = UGENENDPOINT(dev); 339 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 340 size_t n; 341 char buf[UGEN_BBSIZE]; 342 usbd_request_handle reqh; 343 usbd_status r; 344 int s; 345 int error = 0; 346 u_char buffer[UGEN_CHUNK]; 347 348 DPRINTFN(5, ("ugenread: %d:%d\n", UGENUNIT(dev), UGENENDPOINT(dev))); 349 if (sc->sc_disconnected) 350 return (EIO); 351 352 #ifdef DIAGNOSTIC 353 if (!sce->edesc) { 354 printf("ugenread: no edesc\n"); 355 return (EIO); 356 } 357 #endif 358 359 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 360 case UE_INTERRUPT: 361 /* Block until activity occured. */ 362 s = splusb(); 363 while (sce->q.c_cc == 0) { 364 if (flag & IO_NDELAY) { 365 splx(s); 366 return EWOULDBLOCK; 367 } 368 sce->state |= UGEN_ASLP; 369 DPRINTFN(5, ("ugenread: sleep on %p\n", sc)); 370 error = tsleep((caddr_t)sce, PZERO | PCATCH, 371 "ugenrea", 0); 372 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 373 if (error) { 374 sce->state &= ~UGEN_ASLP; 375 splx(s); 376 return (error); 377 } 378 } 379 splx(s); 380 381 /* Transfer as many chunks as possible. */ 382 while (sce->q.c_cc > 0 && uio->uio_resid > 0) { 383 n = min(sce->q.c_cc, uio->uio_resid); 384 if (n > sizeof(buffer)) 385 n = sizeof(buffer); 386 387 /* Remove a small chunk from the input queue. */ 388 q_to_b(&sce->q, buffer, n); 389 DPRINTFN(5, ("ugenread: got %d chars\n", n)); 390 391 /* Copy the data to the user process. */ 392 error = uiomove(buffer, n, uio); 393 if (error) 394 break; 395 } 396 break; 397 case UE_BULK: 398 reqh = usbd_alloc_request(); 399 if (reqh == 0) 400 return (ENOMEM); 401 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 402 /* XXX use callback to enable interrupt? */ 403 r = usbd_setup_request(reqh, sce->pipeh, 0, buf, n, 404 0, USBD_NO_TIMEOUT, 0); 405 if (r != USBD_NORMAL_COMPLETION) { 406 error = EIO; 407 break; 408 } 409 DPRINTFN(1, ("ugenread: transfer %d bytes\n", n)); 410 r = usbd_sync_transfer(reqh); 411 if (r != USBD_NORMAL_COMPLETION) { 412 DPRINTF(("ugenread: error=%d\n", r)); 413 usbd_clear_endpoint_stall(sce->pipeh); 414 error = EIO; 415 break; 416 } 417 error = uiomove(buf, n, uio); 418 if (error) 419 break; 420 } 421 usbd_free_request(reqh); 422 break; 423 default: 424 return (ENXIO); 425 } 426 427 return (error); 428 } 429 430 int 431 ugenwrite(dev, uio, flag) 432 dev_t dev; 433 struct uio *uio; 434 int flag; 435 { 436 struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)]; 437 int endpt = UGENENDPOINT(dev); 438 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 439 size_t n; 440 int error = 0; 441 char buf[UGEN_BBSIZE]; 442 usbd_request_handle reqh; 443 usbd_status r; 444 445 if (sc->sc_disconnected) 446 return (EIO); 447 448 #ifdef DIAGNOSTIC 449 if (!sce->edesc) { 450 printf("ugenwrite: no edesc\n"); 451 return (EIO); 452 } 453 #endif 454 455 DPRINTF(("ugenwrite\n")); 456 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 457 case UE_BULK: 458 reqh = usbd_alloc_request(); 459 if (reqh == 0) 460 return (EIO); 461 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 462 error = uiomove(buf, n, uio); 463 if (error) 464 break; 465 /* XXX use callback to enable interrupt? */ 466 r = usbd_setup_request(reqh, sce->pipeh, 0, buf, n, 467 0, USBD_NO_TIMEOUT, 0); 468 if (r != USBD_NORMAL_COMPLETION) { 469 error = EIO; 470 break; 471 } 472 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 473 r = usbd_sync_transfer(reqh); 474 if (r != USBD_NORMAL_COMPLETION) { 475 DPRINTF(("ugenwrite: error=%d\n", r)); 476 usbd_clear_endpoint_stall(sce->pipeh); 477 error = EIO; 478 break; 479 } 480 } 481 usbd_free_request(reqh); 482 break; 483 default: 484 return (ENXIO); 485 } 486 return (error); 487 } 488 489 490 void 491 ugenintr(reqh, addr, status) 492 usbd_request_handle reqh; 493 usbd_private_handle addr; 494 usbd_status status; 495 { 496 struct ugen_endpoint *sce = addr; 497 /*struct ugen_softc *sc = sce->sc;*/ 498 u_char *ibuf; 499 int isize; 500 501 if (status == USBD_CANCELLED) 502 return; 503 504 if (status != USBD_NORMAL_COMPLETION) { 505 DPRINTF(("ugenintr: status=%d\n", status)); 506 usbd_clear_endpoint_stall_async(sce->pipeh); 507 return; 508 } 509 510 ibuf = sce->ibuf; 511 isize = UGETW(sce->edesc->wMaxPacketSize); 512 513 /*DPRINTFN(5, ("ugenintr: addr=%d endpt=%d\n", 514 addr, endpt, isize)); 515 DPRINTFN(5, (" data = %02x %02x %02x\n", 516 ibuf[0], ibuf[1], ibuf[2]));*/ 517 518 (void)b_to_q(ibuf, isize, &sce->q); 519 520 if (sce->state & UGEN_ASLP) { 521 sce->state &= ~UGEN_ASLP; 522 DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); 523 wakeup((caddr_t)sce); 524 } 525 selwakeup(&sce->rsel); 526 } 527 528 usbd_status 529 ugen_set_interface(sc, ifaceidx, altno) 530 struct ugen_softc *sc; 531 int ifaceidx, altno; 532 { 533 usbd_interface_handle iface; 534 usb_endpoint_descriptor_t *ed; 535 usbd_status r; 536 struct ugen_endpoint *sce; 537 u_int8_t niface, nendpt, endptno, endpt; 538 539 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); 540 541 r = usbd_interface_count(sc->sc_udev, &niface); 542 if (r != USBD_NORMAL_COMPLETION) 543 return (r); 544 if (ifaceidx < 0 || ifaceidx >= niface) 545 return (USBD_INVAL); 546 547 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 548 if (r != USBD_NORMAL_COMPLETION) 549 return (r); 550 r = usbd_endpoint_count(iface, &nendpt); 551 if (r != USBD_NORMAL_COMPLETION) 552 return (r); 553 for (endptno = 0; endptno < nendpt; endptno++) { 554 ed = usbd_interface2endpoint_descriptor(iface,endptno); 555 endpt = ed->bEndpointAddress; 556 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][UE_GET_IN(endpt)]; 557 sce->sc = 0; 558 sce->edesc = 0; 559 sce->iface = 0; 560 } 561 562 /* change setting */ 563 r = usbd_set_interface(iface, altno); 564 if (r != USBD_NORMAL_COMPLETION) 565 return (r); 566 567 r = usbd_endpoint_count(iface, &nendpt); 568 if (r != USBD_NORMAL_COMPLETION) 569 return (r); 570 for (endptno = 0; endptno < nendpt; endptno++) { 571 ed = usbd_interface2endpoint_descriptor(iface,endptno); 572 endpt = ed->bEndpointAddress; 573 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][UE_GET_IN(endpt)]; 574 sce->sc = sc; 575 sce->edesc = ed; 576 sce->iface = iface; 577 } 578 return (0); 579 } 580 581 /* Retrieve a complete descriptor for a certain device and index. */ 582 usb_config_descriptor_t * 583 ugen_get_cdesc(sc, index, lenp) 584 struct ugen_softc *sc; 585 int index; 586 int *lenp; 587 { 588 usb_config_descriptor_t *cdesc, *tdesc, cdescr; 589 int len; 590 usbd_status r; 591 592 if (index == USB_CURRENT_CONFIG_INDEX) { 593 tdesc = usbd_get_config_descriptor(sc->sc_udev); 594 len = UGETW(tdesc->wTotalLength); 595 if (lenp) 596 *lenp = len; 597 cdesc = malloc(len, M_TEMP, M_WAITOK); 598 memcpy(cdesc, tdesc, len); 599 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); 600 } else { 601 r = usbd_get_config_desc(sc->sc_udev, index, &cdescr); 602 if (r != USBD_NORMAL_COMPLETION) 603 return (0); 604 len = UGETW(cdescr.wTotalLength); 605 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); 606 if (lenp) 607 *lenp = len; 608 cdesc = malloc(len, M_TEMP, M_WAITOK); 609 r = usbd_get_config_desc_full(sc->sc_udev, index, cdesc, len); 610 if (r != USBD_NORMAL_COMPLETION) { 611 free(cdesc, M_TEMP); 612 return (0); 613 } 614 } 615 return (cdesc); 616 } 617 618 int 619 ugen_get_alt_index(sc, ifaceidx) 620 struct ugen_softc *sc; 621 int ifaceidx; 622 { 623 usbd_interface_handle iface; 624 usbd_status r; 625 626 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 627 if (r != USBD_NORMAL_COMPLETION) 628 return (-1); 629 return (usbd_get_interface_altindex(iface)); 630 } 631 632 int 633 ugenioctl(dev, cmd, addr, flag, p) 634 dev_t dev; 635 u_long cmd; 636 caddr_t addr; 637 int flag; 638 struct proc *p; 639 { 640 struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)]; 641 int endpt = UGENENDPOINT(dev); 642 usbd_status r; 643 usbd_interface_handle iface; 644 struct usb_config_desc *cd; 645 usb_config_descriptor_t *cdesc; 646 struct usb_interface_desc *id; 647 usb_interface_descriptor_t *idesc; 648 struct usb_endpoint_desc *ed; 649 usb_endpoint_descriptor_t *edesc; 650 struct usb_alt_interface *ai; 651 struct usb_string_desc *si; 652 u_int8_t conf, alt; 653 654 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 655 if (sc->sc_disconnected) 656 return (EIO); 657 658 switch (cmd) { 659 case FIONBIO: 660 /* All handled in the upper FS layer. */ 661 return (0); 662 default: 663 break; 664 } 665 666 if (endpt != USB_CONTROL_ENDPOINT) 667 return (EINVAL); 668 669 switch (cmd) { 670 case USB_GET_CONFIG: 671 r = usbd_get_config(sc->sc_udev, &conf); 672 if (r != USBD_NORMAL_COMPLETION) 673 return (EIO); 674 *(int *)addr = conf; 675 break; 676 case USB_SET_CONFIG: 677 if (!(flag & FWRITE)) 678 return (EPERM); 679 r = ugen_set_config(sc, *(int *)addr); 680 if (r != USBD_NORMAL_COMPLETION) 681 return (EIO); 682 break; 683 case USB_GET_ALTINTERFACE: 684 ai = (struct usb_alt_interface *)addr; 685 r = usbd_device2interface_handle(sc->sc_udev, 686 ai->interface_index, &iface); 687 if (r != USBD_NORMAL_COMPLETION) 688 return (EINVAL); 689 idesc = usbd_get_interface_descriptor(iface); 690 if (!idesc) 691 return (EIO); 692 ai->alt_no = idesc->bAlternateSetting; 693 break; 694 case USB_SET_ALTINTERFACE: 695 if (!(flag & FWRITE)) 696 return (EPERM); 697 ai = (struct usb_alt_interface *)addr; 698 r = usbd_device2interface_handle(sc->sc_udev, 699 ai->interface_index, &iface); 700 if (r != USBD_NORMAL_COMPLETION) 701 return (EINVAL); 702 r = ugen_set_interface(sc, ai->interface_index, ai->alt_no); 703 if (r != USBD_NORMAL_COMPLETION) 704 return (EINVAL); 705 break; 706 case USB_GET_NO_ALT: 707 ai = (struct usb_alt_interface *)addr; 708 cdesc = ugen_get_cdesc(sc, ai->config_index, 0); 709 if (!cdesc) 710 return (EINVAL); 711 idesc = usbd_find_idesc(cdesc, ai->interface_index, 0); 712 if (!idesc) 713 return (EINVAL); 714 ai->alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); 715 break; 716 case USB_GET_DEVICE_DESC: 717 *(usb_device_descriptor_t *)addr = 718 *usbd_get_device_descriptor(sc->sc_udev); 719 break; 720 case USB_GET_CONFIG_DESC: 721 cd = (struct usb_config_desc *)addr; 722 cdesc = ugen_get_cdesc(sc, cd->config_index, 0); 723 if (!cdesc) 724 return (EINVAL); 725 cd->desc = *cdesc; 726 free(cdesc, M_TEMP); 727 break; 728 case USB_GET_INTERFACE_DESC: 729 id = (struct usb_interface_desc *)addr; 730 cdesc = ugen_get_cdesc(sc, id->config_index, 0); 731 if (!cdesc) 732 return (EINVAL); 733 if (id->config_index == USB_CURRENT_CONFIG_INDEX && 734 id->alt_index == USB_CURRENT_ALT_INDEX) 735 alt = ugen_get_alt_index(sc, id->interface_index); 736 else 737 alt = id->alt_index; 738 idesc = usbd_find_idesc(cdesc, id->interface_index, alt); 739 if (!idesc) { 740 free(cdesc, M_TEMP); 741 return (EINVAL); 742 } 743 id->desc = *idesc; 744 free(cdesc, M_TEMP); 745 break; 746 case USB_GET_ENDPOINT_DESC: 747 ed = (struct usb_endpoint_desc *)addr; 748 cdesc = ugen_get_cdesc(sc, ed->config_index, 0); 749 if (!cdesc) 750 return (EINVAL); 751 if (ed->config_index == USB_CURRENT_CONFIG_INDEX && 752 ed->alt_index == USB_CURRENT_ALT_INDEX) 753 alt = ugen_get_alt_index(sc, ed->interface_index); 754 else 755 alt = ed->alt_index; 756 edesc = usbd_find_edesc(cdesc, ed->interface_index, 757 alt, ed->endpoint_index); 758 if (!edesc) { 759 free(cdesc, M_TEMP); 760 return (EINVAL); 761 } 762 ed->desc = *edesc; 763 free(cdesc, M_TEMP); 764 break; 765 case USB_GET_FULL_DESC: 766 { 767 int len; 768 struct iovec iov; 769 struct uio uio; 770 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 771 int error; 772 773 cdesc = ugen_get_cdesc(sc, fd->config_index, &len); 774 if (len > fd->size) 775 len = fd->size; 776 iov.iov_base = (caddr_t)fd->data; 777 iov.iov_len = len; 778 uio.uio_iov = &iov; 779 uio.uio_iovcnt = 1; 780 uio.uio_resid = len; 781 uio.uio_offset = 0; 782 uio.uio_segflg = UIO_USERSPACE; 783 uio.uio_rw = UIO_READ; 784 uio.uio_procp = p; 785 error = uiomove(cdesc, len, &uio); 786 free(cdesc, M_TEMP); 787 return (error); 788 } 789 case USB_GET_STRING_DESC: 790 si = (struct usb_string_desc *)addr; 791 r = usbd_get_string_desc(sc->sc_udev, si->string_index, 792 si->language_id, &si->desc); 793 if (r != USBD_NORMAL_COMPLETION) 794 return (EINVAL); 795 break; 796 case USB_DO_REQUEST: 797 { 798 struct usb_ctl_request *ur = (void *)addr; 799 int len = UGETW(ur->request.wLength); 800 struct iovec iov; 801 struct uio uio; 802 void *ptr = 0; 803 usbd_status r; 804 int error = 0; 805 806 if (!(flag & FWRITE)) 807 return (EPERM); 808 /* Avoid requests that would damage the bus integrity. */ 809 if ((ur->request.bmRequestType == UT_WRITE_DEVICE && 810 ur->request.bRequest == UR_SET_ADDRESS) || 811 (ur->request.bmRequestType == UT_WRITE_DEVICE && 812 ur->request.bRequest == UR_SET_CONFIG) || 813 (ur->request.bmRequestType == UT_WRITE_INTERFACE && 814 ur->request.bRequest == UR_SET_INTERFACE)) 815 return (EINVAL); 816 817 if (len < 0 || len > 32767) 818 return (EINVAL); 819 if (len != 0) { 820 iov.iov_base = (caddr_t)ur->data; 821 iov.iov_len = len; 822 uio.uio_iov = &iov; 823 uio.uio_iovcnt = 1; 824 uio.uio_resid = len; 825 uio.uio_offset = 0; 826 uio.uio_segflg = UIO_USERSPACE; 827 uio.uio_rw = 828 ur->request.bmRequestType & UT_READ ? 829 UIO_READ : UIO_WRITE; 830 uio.uio_procp = p; 831 ptr = malloc(len, M_TEMP, M_WAITOK); 832 if (uio.uio_rw == UIO_WRITE) { 833 error = uiomove(ptr, len, &uio); 834 if (error) 835 goto ret; 836 } 837 } 838 r = usbd_do_request_flags(sc->sc_udev, &ur->request, 839 ptr, ur->flags); 840 if (r) { 841 error = EIO; 842 goto ret; 843 } 844 if (len != 0) { 845 if (uio.uio_rw == UIO_READ) { 846 error = uiomove(ptr, len, &uio); 847 if (error) 848 goto ret; 849 } 850 } 851 ret: 852 if (ptr) 853 free(ptr, M_TEMP); 854 return (error); 855 } 856 case USB_GET_DEVICEINFO: 857 usbd_fill_deviceinfo(sc->sc_udev, 858 (struct usb_device_info *)addr); 859 break; 860 default: 861 return (EINVAL); 862 } 863 return (0); 864 } 865 866 int 867 ugenpoll(dev, events, p) 868 dev_t dev; 869 int events; 870 struct proc *p; 871 { 872 struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)]; 873 /* XXX */ 874 struct ugen_endpoint *sce; 875 int revents = 0; 876 int s; 877 878 if (sc->sc_disconnected) 879 return (EIO); 880 881 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 882 if (!sce->edesc) return (0); /* XXX */ 883 s = splusb(); 884 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 885 case UE_INTERRUPT: 886 if (events & (POLLIN | POLLRDNORM)) { 887 if (sce->q.c_cc > 0) 888 revents |= events & (POLLIN | POLLRDNORM); 889 else 890 selrecord(p, &sce->rsel); 891 } 892 break; 893 case UE_BULK: 894 /* 895 * We have no easy way of determining if a read will 896 * yield any data or a write will happen. 897 * Pretend they will. 898 */ 899 revents |= events & 900 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 901 break; 902 default: 903 break; 904 } 905 splx(s); 906 return (revents); 907 } 908 909 #if defined(__FreeBSD__) 910 static int 911 ugen_detach(device_t self) 912 { 913 struct ugen_softc *sc = device_get_softc(self); 914 char *devinfo = (char *) device_get_desc(self); 915 916 if (devinfo) { 917 device_set_desc(self, NULL); 918 free(devinfo, M_USB); 919 } 920 return 0; 921 } 922 #endif 923
Indexes created Thu Sep 25 16:09:42 GMT 2025