ugen.c revision 1.8
1 /* $NetBSD: ugen.c,v 1.8 1999/01/01 15:31:24 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 #define UGEN_SHORT_OK 0x04 /* short xfers are OK */ 76 usbd_pipe_handle pipeh; 77 struct clist q; 78 struct selinfo rsel; 79 void *ibuf; 80 }; 81 82 #define UGEN_CHUNK 128 /* chunk size for read */ 83 #define UGEN_IBSIZE 1020 /* buffer size */ 84 #define UGEN_BBSIZE 1024 85 86 struct ugen_softc { 87 struct device sc_dev; /* base device */ 88 struct usbd_device *sc_udev; 89 90 struct ugen_endpoint sc_endpoints[USB_MAX_ENDPOINTS][2]; 91 #define OUT 0 /* index order is important, from UE_OUT */ 92 #define IN 1 /* from UE_IN */ 93 94 int sc_disconnected; /* device is gone */ 95 }; 96 97 int ugen_match __P((struct device *, struct cfdata *, void *)); 98 void ugen_attach __P((struct device *, struct device *, void *)); 99 100 int ugenopen __P((dev_t, int, int, struct proc *)); 101 int ugenclose __P((dev_t, int, int, struct proc *p)); 102 int ugenread __P((dev_t, struct uio *uio, int)); 103 int ugenwrite __P((dev_t, struct uio *uio, int)); 104 int ugenioctl __P((dev_t, u_long, caddr_t, int, struct proc *)); 105 int ugenpoll __P((dev_t, int, struct proc *)); 106 void ugenintr __P((usbd_request_handle reqh, usbd_private_handle addr, 107 usbd_status status)); 108 void ugen_disco __P((void *)); 109 110 int ugen_set_config __P((struct ugen_softc *sc, int configno)); 111 usb_config_descriptor_t *ugen_get_cdesc __P((struct ugen_softc *sc, int index, 112 int *lenp)); 113 usbd_status ugen_set_interface __P((struct ugen_softc *, int, int)); 114 int ugen_get_alt_index __P((struct ugen_softc *sc, int ifaceidx)); 115 116 #define UGENUNIT(n) (((n) >> 4) & 0xf) 117 #define UGENENDPOINT(n) ((n) & 0xf) 118 119 USB_DECLARE_DRIVER(ugen); 120 121 USB_MATCH(ugen) 122 { 123 USB_MATCH_START(ugen, uaa); 124 125 if (uaa->usegeneric) 126 return (UMATCH_GENERIC); 127 else 128 return (UMATCH_NONE); 129 } 130 131 USB_ATTACH(ugen) 132 { 133 USB_ATTACH_START(ugen, sc, uaa); 134 char devinfo[1024]; 135 usbd_status r; 136 int conf; 137 138 usbd_devinfo(uaa->device, 0, devinfo); 139 USB_ATTACH_SETUP; 140 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 141 142 sc->sc_udev = uaa->device; 143 conf = 1; /* XXX should not hard code 1 */ 144 r = ugen_set_config(sc, conf); 145 if (r != USBD_NORMAL_COMPLETION) { 146 printf("%s: setting configuration %d failed\n", 147 USBDEVNAME(sc->sc_dev), conf); 148 sc->sc_disconnected = 1; 149 USB_ATTACH_ERROR_RETURN; 150 } 151 USB_ATTACH_SUCCESS_RETURN; 152 } 153 154 int 155 ugen_set_config(sc, configno) 156 struct ugen_softc *sc; 157 int configno; 158 { 159 usbd_device_handle dev = sc->sc_udev; 160 usbd_interface_handle iface; 161 usb_endpoint_descriptor_t *ed; 162 struct ugen_endpoint *sce; 163 u_int8_t niface, nendpt; 164 int ifaceno, endptno, endpt; 165 usbd_status r; 166 167 DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n", 168 USBDEVNAME(sc->sc_dev), configno, sc)); 169 if (usbd_get_config_descriptor(dev)->bConfigurationValue != configno) { 170 /* Avoid setting the current value. */ 171 r = usbd_set_config_no(dev, configno, 0); 172 if (r != USBD_NORMAL_COMPLETION) 173 return (r); 174 } 175 176 r = usbd_interface_count(dev, &niface); 177 if (r != USBD_NORMAL_COMPLETION) 178 return (r); 179 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints); 180 for (ifaceno = 0; ifaceno < niface; ifaceno++) { 181 DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno)); 182 r = usbd_device2interface_handle(dev, ifaceno, &iface); 183 if (r != USBD_NORMAL_COMPLETION) 184 return (r); 185 r = usbd_endpoint_count(iface, &nendpt); 186 if (r != USBD_NORMAL_COMPLETION) 187 return (r); 188 for (endptno = 0; endptno < nendpt; endptno++) { 189 ed = usbd_interface2endpoint_descriptor(iface,endptno); 190 endpt = ed->bEndpointAddress; 191 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)] 192 [UE_GET_IN(endpt)]; 193 DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x" 194 "(%d,%d), sce=%p\n", 195 endptno, endpt, UE_GET_ADDR(endpt), 196 UE_GET_IN(endpt), sce)); 197 sce->sc = sc; 198 sce->edesc = ed; 199 sce->iface = iface; 200 } 201 } 202 return (USBD_NORMAL_COMPLETION); 203 } 204 205 void 206 ugen_disco(p) 207 void *p; 208 { 209 struct ugen_softc *sc = p; 210 sc->sc_disconnected = 1; 211 } 212 213 int 214 ugenopen(dev, flag, mode, p) 215 dev_t dev; 216 int flag; 217 int mode; 218 struct proc *p; 219 { 220 int unit = UGENUNIT(dev); 221 int endpt = UGENENDPOINT(dev); 222 usb_endpoint_descriptor_t *edesc; 223 struct ugen_softc *sc; 224 struct ugen_endpoint *sce; 225 int dir, isize; 226 usbd_status r; 227 228 DPRINTFN(5, ("ugenopen: flag=%d, unit=%d endpt=%d\n", 229 flag, unit, endpt)); 230 if (unit >= ugen_cd.cd_ndevs) 231 return (ENXIO); 232 sc = ugen_cd.cd_devs[unit]; 233 if (!sc) 234 return (ENXIO); 235 236 if (sc->sc_disconnected) 237 return (EIO); 238 239 if (endpt == USB_CONTROL_ENDPOINT) { 240 /*if ((flag & (FWRITE|FREAD)) != (FWRITE|FREAD)) 241 return (EACCES);*/ 242 sce = &sc->sc_endpoints[USB_CONTROL_ENDPOINT][OUT]; 243 if (sce->state & UGEN_OPEN) 244 return (EBUSY); 245 } else { 246 switch (flag & (FWRITE|FREAD)) { 247 case FWRITE: 248 dir = OUT; 249 break; 250 case FREAD: 251 dir = IN; 252 break; 253 default: 254 return (EACCES); 255 } 256 sce = &sc->sc_endpoints[endpt][dir]; 257 DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n", 258 sc, endpt, dir, sce)); 259 if (sce->state & UGEN_OPEN) 260 return (EBUSY); 261 edesc = sce->edesc; 262 if (!edesc) 263 return (ENXIO); 264 switch (edesc->bmAttributes & UE_XFERTYPE) { 265 case UE_INTERRUPT: 266 isize = UGETW(edesc->wMaxPacketSize); 267 if (isize == 0) /* shouldn't happen */ 268 return (EINVAL); 269 sce->ibuf = malloc(isize, M_USB, M_NOWAIT); 270 DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n", 271 endpt, isize)); 272 if (clalloc(&sce->q, UGEN_IBSIZE, 0) == -1) 273 return (ENOMEM); 274 r = usbd_open_pipe_intr(sce->iface, 275 edesc->bEndpointAddress, 276 USBD_SHORT_XFER_OK, &sce->pipeh, sce, 277 sce->ibuf, isize, ugenintr); 278 if (r != USBD_NORMAL_COMPLETION) { 279 free(sce->ibuf, M_USB); 280 clfree(&sce->q); 281 return (EIO); 282 } 283 usbd_set_disco(sce->pipeh, ugen_disco, sc); 284 DPRINTFN(5, ("ugenopen: interrupt open done\n")); 285 break; 286 case UE_BULK: 287 r = usbd_open_pipe(sce->iface, 288 edesc->bEndpointAddress, 0, 289 &sce->pipeh); 290 if (r != USBD_NORMAL_COMPLETION) 291 return (EIO); 292 break; 293 case UE_CONTROL: 294 case UE_ISOCHRONOUS: 295 return (EINVAL); 296 } 297 } 298 sce->state |= UGEN_OPEN; 299 return (0); 300 } 301 302 int 303 ugenclose(dev, flag, mode, p) 304 dev_t dev; 305 int flag; 306 int mode; 307 struct proc *p; 308 { 309 struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)]; 310 int endpt = UGENENDPOINT(dev); 311 struct ugen_endpoint *sce; 312 int dir; 313 314 DPRINTFN(5, ("ugenclose\n")); 315 if (sc->sc_disconnected) 316 return (EIO); 317 318 if (endpt == USB_CONTROL_ENDPOINT) { 319 sc->sc_endpoints[endpt][OUT].state = 0; 320 return (0); 321 } 322 dir = flag & FWRITE ? OUT : IN; 323 sce = &sc->sc_endpoints[endpt][dir]; 324 DPRINTFN(5, ("ugenclose: endpt=%d dir=%d sce=%p\n", endpt, dir, sce)); 325 sce->state = 0; 326 327 usbd_abort_pipe(sce->pipeh); 328 usbd_close_pipe(sce->pipeh); 329 330 if (sce->ibuf) { 331 free(sce->ibuf, M_USB); 332 sce->ibuf = 0; 333 } 334 335 return (0); 336 } 337 338 int 339 ugenread(dev, uio, flag) 340 dev_t dev; 341 struct uio *uio; 342 int flag; 343 { 344 struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)]; 345 int endpt = UGENENDPOINT(dev); 346 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 347 u_int32_t n; 348 char buf[UGEN_BBSIZE]; 349 usbd_request_handle reqh; 350 usbd_status r; 351 int s; 352 int error = 0; 353 u_char buffer[UGEN_CHUNK]; 354 355 DPRINTFN(5, ("ugenread: %d:%d\n", UGENUNIT(dev), UGENENDPOINT(dev))); 356 if (sc->sc_disconnected) 357 return (EIO); 358 359 #ifdef DIAGNOSTIC 360 if (!sce->edesc) { 361 printf("ugenread: no edesc\n"); 362 return (EIO); 363 } 364 #endif 365 366 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 367 case UE_INTERRUPT: 368 /* Block until activity occured. */ 369 s = splusb(); 370 while (sce->q.c_cc == 0) { 371 if (flag & IO_NDELAY) { 372 splx(s); 373 return (EWOULDBLOCK); 374 } 375 sce->state |= UGEN_ASLP; 376 DPRINTFN(5, ("ugenread: sleep on %p\n", sc)); 377 error = tsleep((caddr_t)sce, PZERO | PCATCH, 378 "ugenri", 0); 379 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 380 if (error) { 381 sce->state &= ~UGEN_ASLP; 382 splx(s); 383 return (error); 384 } 385 } 386 splx(s); 387 388 /* Transfer as many chunks as possible. */ 389 while (sce->q.c_cc > 0 && uio->uio_resid > 0) { 390 n = min(sce->q.c_cc, uio->uio_resid); 391 if (n > sizeof(buffer)) 392 n = sizeof(buffer); 393 394 /* Remove a small chunk from the input queue. */ 395 q_to_b(&sce->q, buffer, n); 396 DPRINTFN(5, ("ugenread: got %d chars\n", n)); 397 398 /* Copy the data to the user process. */ 399 error = uiomove(buffer, n, uio); 400 if (error) 401 break; 402 } 403 break; 404 case UE_BULK: 405 reqh = usbd_alloc_request(); 406 if (reqh == 0) 407 return (ENOMEM); 408 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 409 DPRINTFN(1, ("ugenread: transfer %d bytes\n", n)); 410 r = usbd_bulk_transfer(reqh, sce->pipeh, 0, buf, 411 &n, "ugenrb"); 412 if (r != USBD_NORMAL_COMPLETION) { 413 if (r == USBD_INTERRUPTED) 414 error = EINTR; 415 else 416 error = EIO; 417 break; 418 } 419 error = uiomove(buf, n, uio); 420 if (error) 421 break; 422 } 423 usbd_free_request(reqh); 424 break; 425 default: 426 return (ENXIO); 427 } 428 429 return (error); 430 } 431 432 int 433 ugenwrite(dev, uio, flag) 434 dev_t dev; 435 struct uio *uio; 436 int flag; 437 { 438 struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)]; 439 int endpt = UGENENDPOINT(dev); 440 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 441 size_t n; 442 int error = 0; 443 char buf[UGEN_BBSIZE]; 444 usbd_request_handle reqh; 445 usbd_status r; 446 447 if (sc->sc_disconnected) 448 return (EIO); 449 450 #ifdef DIAGNOSTIC 451 if (!sce->edesc) { 452 printf("ugenwrite: no edesc\n"); 453 return (EIO); 454 } 455 #endif 456 457 DPRINTF(("ugenwrite\n")); 458 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 459 case UE_BULK: 460 reqh = usbd_alloc_request(); 461 if (reqh == 0) 462 return (EIO); 463 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 464 error = uiomove(buf, n, uio); 465 if (error) 466 break; 467 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 468 r = usbd_bulk_transfer(reqh, sce->pipeh, 0, buf, 469 &n, "ugenwb"); 470 if (r != USBD_NORMAL_COMPLETION) { 471 if (r == USBD_INTERRUPTED) 472 error = EINTR; 473 else 474 error = EIO; 475 break; 476 } 477 } 478 usbd_free_request(reqh); 479 break; 480 default: 481 return (ENXIO); 482 } 483 return (error); 484 } 485 486 487 void 488 ugenintr(reqh, addr, status) 489 usbd_request_handle reqh; 490 usbd_private_handle addr; 491 usbd_status status; 492 { 493 struct ugen_endpoint *sce = addr; 494 /*struct ugen_softc *sc = sce->sc;*/ 495 usbd_private_handle priv; 496 void *buffer; 497 u_int32_t count; 498 usbd_status xstatus; 499 u_char *ibuf; 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 (void)usbd_get_request_status(reqh, &priv, &buffer, &count, &xstatus); 511 ibuf = sce->ibuf; 512 513 DPRINTFN(5, ("ugenintr: reqh=%p status=%d count=%d\n", 514 reqh, xstatus, count)); 515 DPRINTFN(5, (" data = %02x %02x %02x\n", 516 ibuf[0], ibuf[1], ibuf[2])); 517 518 (void)b_to_q(ibuf, count, &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 struct ugen_endpoint *sce; 643 usbd_status r; 644 usbd_interface_handle iface; 645 struct usb_config_desc *cd; 646 usb_config_descriptor_t *cdesc; 647 struct usb_interface_desc *id; 648 usb_interface_descriptor_t *idesc; 649 struct usb_endpoint_desc *ed; 650 usb_endpoint_descriptor_t *edesc; 651 struct usb_alt_interface *ai; 652 struct usb_string_desc *si; 653 u_int8_t conf, alt; 654 655 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 656 if (sc->sc_disconnected) 657 return (EIO); 658 659 switch (cmd) { 660 case FIONBIO: 661 /* All handled in the upper FS layer. */ 662 return (0); 663 case USB_SET_SHORT_XFER: 664 /* This flag only affects read */ 665 sce = &sc->sc_endpoints[endpt][IN]; 666 if (*(int *)addr) 667 sce->state |= UGEN_SHORT_OK; 668 else 669 sce->state &= ~UGEN_SHORT_OK; 670 return (0); 671 default: 672 break; 673 } 674 675 if (endpt != USB_CONTROL_ENDPOINT) 676 return (EINVAL); 677 678 switch (cmd) { 679 #ifdef USB_DEBUG 680 case USB_SETDEBUG: 681 ugendebug = *(int *)addr; 682 break; 683 #endif 684 case USB_GET_CONFIG: 685 r = usbd_get_config(sc->sc_udev, &conf); 686 if (r != USBD_NORMAL_COMPLETION) 687 return (EIO); 688 *(int *)addr = conf; 689 break; 690 case USB_SET_CONFIG: 691 if (!(flag & FWRITE)) 692 return (EPERM); 693 r = ugen_set_config(sc, *(int *)addr); 694 if (r != USBD_NORMAL_COMPLETION) 695 return (EIO); 696 break; 697 case USB_GET_ALTINTERFACE: 698 ai = (struct usb_alt_interface *)addr; 699 r = usbd_device2interface_handle(sc->sc_udev, 700 ai->interface_index, &iface); 701 if (r != USBD_NORMAL_COMPLETION) 702 return (EINVAL); 703 idesc = usbd_get_interface_descriptor(iface); 704 if (!idesc) 705 return (EIO); 706 ai->alt_no = idesc->bAlternateSetting; 707 break; 708 case USB_SET_ALTINTERFACE: 709 if (!(flag & FWRITE)) 710 return (EPERM); 711 ai = (struct usb_alt_interface *)addr; 712 r = usbd_device2interface_handle(sc->sc_udev, 713 ai->interface_index, &iface); 714 if (r != USBD_NORMAL_COMPLETION) 715 return (EINVAL); 716 r = ugen_set_interface(sc, ai->interface_index, ai->alt_no); 717 if (r != USBD_NORMAL_COMPLETION) 718 return (EINVAL); 719 break; 720 case USB_GET_NO_ALT: 721 ai = (struct usb_alt_interface *)addr; 722 cdesc = ugen_get_cdesc(sc, ai->config_index, 0); 723 if (!cdesc) 724 return (EINVAL); 725 idesc = usbd_find_idesc(cdesc, ai->interface_index, 0); 726 if (!idesc) 727 return (EINVAL); 728 ai->alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); 729 break; 730 case USB_GET_DEVICE_DESC: 731 *(usb_device_descriptor_t *)addr = 732 *usbd_get_device_descriptor(sc->sc_udev); 733 break; 734 case USB_GET_CONFIG_DESC: 735 cd = (struct usb_config_desc *)addr; 736 cdesc = ugen_get_cdesc(sc, cd->config_index, 0); 737 if (!cdesc) 738 return (EINVAL); 739 cd->desc = *cdesc; 740 free(cdesc, M_TEMP); 741 break; 742 case USB_GET_INTERFACE_DESC: 743 id = (struct usb_interface_desc *)addr; 744 cdesc = ugen_get_cdesc(sc, id->config_index, 0); 745 if (!cdesc) 746 return (EINVAL); 747 if (id->config_index == USB_CURRENT_CONFIG_INDEX && 748 id->alt_index == USB_CURRENT_ALT_INDEX) 749 alt = ugen_get_alt_index(sc, id->interface_index); 750 else 751 alt = id->alt_index; 752 idesc = usbd_find_idesc(cdesc, id->interface_index, alt); 753 if (!idesc) { 754 free(cdesc, M_TEMP); 755 return (EINVAL); 756 } 757 id->desc = *idesc; 758 free(cdesc, M_TEMP); 759 break; 760 case USB_GET_ENDPOINT_DESC: 761 ed = (struct usb_endpoint_desc *)addr; 762 cdesc = ugen_get_cdesc(sc, ed->config_index, 0); 763 if (!cdesc) 764 return (EINVAL); 765 if (ed->config_index == USB_CURRENT_CONFIG_INDEX && 766 ed->alt_index == USB_CURRENT_ALT_INDEX) 767 alt = ugen_get_alt_index(sc, ed->interface_index); 768 else 769 alt = ed->alt_index; 770 edesc = usbd_find_edesc(cdesc, ed->interface_index, 771 alt, ed->endpoint_index); 772 if (!edesc) { 773 free(cdesc, M_TEMP); 774 return (EINVAL); 775 } 776 ed->desc = *edesc; 777 free(cdesc, M_TEMP); 778 break; 779 case USB_GET_FULL_DESC: 780 { 781 int len; 782 struct iovec iov; 783 struct uio uio; 784 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 785 int error; 786 787 cdesc = ugen_get_cdesc(sc, fd->config_index, &len); 788 if (len > fd->size) 789 len = fd->size; 790 iov.iov_base = (caddr_t)fd->data; 791 iov.iov_len = len; 792 uio.uio_iov = &iov; 793 uio.uio_iovcnt = 1; 794 uio.uio_resid = len; 795 uio.uio_offset = 0; 796 uio.uio_segflg = UIO_USERSPACE; 797 uio.uio_rw = UIO_READ; 798 uio.uio_procp = p; 799 error = uiomove(cdesc, len, &uio); 800 free(cdesc, M_TEMP); 801 return (error); 802 } 803 case USB_GET_STRING_DESC: 804 si = (struct usb_string_desc *)addr; 805 r = usbd_get_string_desc(sc->sc_udev, si->string_index, 806 si->language_id, &si->desc); 807 if (r != USBD_NORMAL_COMPLETION) 808 return (EINVAL); 809 break; 810 case USB_DO_REQUEST: 811 { 812 struct usb_ctl_request *ur = (void *)addr; 813 int len = UGETW(ur->request.wLength); 814 struct iovec iov; 815 struct uio uio; 816 void *ptr = 0; 817 usbd_status r; 818 int error = 0; 819 820 if (!(flag & FWRITE)) 821 return (EPERM); 822 /* Avoid requests that would damage the bus integrity. */ 823 if ((ur->request.bmRequestType == UT_WRITE_DEVICE && 824 ur->request.bRequest == UR_SET_ADDRESS) || 825 (ur->request.bmRequestType == UT_WRITE_DEVICE && 826 ur->request.bRequest == UR_SET_CONFIG) || 827 (ur->request.bmRequestType == UT_WRITE_INTERFACE && 828 ur->request.bRequest == UR_SET_INTERFACE)) 829 return (EINVAL); 830 831 if (len < 0 || len > 32767) 832 return (EINVAL); 833 if (len != 0) { 834 iov.iov_base = (caddr_t)ur->data; 835 iov.iov_len = len; 836 uio.uio_iov = &iov; 837 uio.uio_iovcnt = 1; 838 uio.uio_resid = len; 839 uio.uio_offset = 0; 840 uio.uio_segflg = UIO_USERSPACE; 841 uio.uio_rw = 842 ur->request.bmRequestType & UT_READ ? 843 UIO_READ : UIO_WRITE; 844 uio.uio_procp = p; 845 ptr = malloc(len, M_TEMP, M_WAITOK); 846 if (uio.uio_rw == UIO_WRITE) { 847 error = uiomove(ptr, len, &uio); 848 if (error) 849 goto ret; 850 } 851 } 852 r = usbd_do_request_flags(sc->sc_udev, &ur->request, 853 ptr, ur->flags); 854 if (r) { 855 error = EIO; 856 goto ret; 857 } 858 if (len != 0) { 859 if (uio.uio_rw == UIO_READ) { 860 error = uiomove(ptr, len, &uio); 861 if (error) 862 goto ret; 863 } 864 } 865 ret: 866 if (ptr) 867 free(ptr, M_TEMP); 868 return (error); 869 } 870 case USB_GET_DEVICEINFO: 871 usbd_fill_deviceinfo(sc->sc_udev, 872 (struct usb_device_info *)addr); 873 break; 874 default: 875 return (EINVAL); 876 } 877 return (0); 878 } 879 880 int 881 ugenpoll(dev, events, p) 882 dev_t dev; 883 int events; 884 struct proc *p; 885 { 886 struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)]; 887 /* XXX */ 888 struct ugen_endpoint *sce; 889 int revents = 0; 890 int s; 891 892 if (sc->sc_disconnected) 893 return (EIO); 894 895 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 896 if (!sce->edesc) return (0); /* XXX */ 897 s = splusb(); 898 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 899 case UE_INTERRUPT: 900 if (events & (POLLIN | POLLRDNORM)) { 901 if (sce->q.c_cc > 0) 902 revents |= events & (POLLIN | POLLRDNORM); 903 else 904 selrecord(p, &sce->rsel); 905 } 906 break; 907 case UE_BULK: 908 /* 909 * We have no easy way of determining if a read will 910 * yield any data or a write will happen. 911 * Pretend they will. 912 */ 913 revents |= events & 914 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 915 break; 916 default: 917 break; 918 } 919 splx(s); 920 return (revents); 921 } 922 923 #if defined(__FreeBSD__) 924 static int 925 ugen_detach(device_t self) 926 { 927 struct ugen_softc *sc = device_get_softc(self); 928 char *devinfo = (char *) device_get_desc(self); 929 930 if (devinfo) { 931 device_set_desc(self, NULL); 932 free(devinfo, M_USB); 933 } 934 return 0; 935 } 936 #endif 937
Indexes created Thu Sep 25 16:09:42 GMT 2025