ugen.c revision 1.2
1 /* $NetBSD: ugen.c,v 1.2 1998/12/09 00:18:10 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, usbd_status status)); 106 void ugen_disco __P((void *)); 107 108 int ugen_set_config __P((struct ugen_softc *sc, int configno)); 109 usb_config_descriptor_t *ugen_get_cdesc __P((struct ugen_softc *sc, int index, int *lenp)); 110 usbd_status ugen_set_interface __P((struct ugen_softc *, int, int)); 111 int ugen_get_alt_index __P((struct ugen_softc *sc, int ifaceidx)); 112 113 #define UGENUNIT(n) (((n) >> 4) & 0xf) 114 #define UGENENDPOINT(n) ((n) & 0xf) 115 116 extern struct cfdriver ugen_cd; 117 118 struct cfattach ugen_ca = { 119 sizeof(struct ugen_softc), ugen_match, ugen_attach 120 }; 121 122 int 123 ugen_match(parent, match, aux) 124 struct device *parent; 125 struct cfdata *match; 126 void *aux; 127 { 128 struct usb_attach_arg *uaa = (struct usb_attach_arg *)aux; 129 130 if (uaa->usegeneric) 131 return (UMATCH_GENERIC); 132 else 133 return (UMATCH_NONE); 134 } 135 136 void 137 ugen_attach(parent, self, aux) 138 struct device *parent; 139 struct device *self; 140 void *aux; 141 { 142 struct ugen_softc *sc = (struct ugen_softc *)self; 143 struct usb_attach_arg *uaa = (struct usb_attach_arg *)aux; 144 char devinfo[1024]; 145 usbd_status r; 146 147 usbd_devinfo(uaa->device, 0, devinfo); 148 printf(": %s\n", devinfo); 149 150 sc->sc_udev = uaa->device; 151 r = ugen_set_config(sc, 1); 152 if (r != USBD_NORMAL_COMPLETION) { 153 printf("%s: setting configuration 0 failed\n", 154 sc->sc_dev.dv_xname); 155 sc->sc_disconnected = 1; 156 return; 157 } 158 } 159 160 int 161 ugen_set_config(sc, configno) 162 struct ugen_softc *sc; 163 int configno; 164 { 165 usbd_device_handle dev = sc->sc_udev; 166 usbd_interface_handle iface; 167 usb_endpoint_descriptor_t *ed; 168 struct ugen_endpoint *sce; 169 u_int8_t niface, nendpt; 170 int ifaceno, endptno, endpt; 171 usbd_status r; 172 173 DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n", 174 sc->sc_dev.dv_xname, configno, sc)); 175 r = usbd_set_config_no(dev, configno, 0); 176 if (r != USBD_NORMAL_COMPLETION) 177 return (r); 178 179 r = usbd_interface_count(dev, &niface); 180 if (r != USBD_NORMAL_COMPLETION) 181 return (r); 182 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints); 183 for (ifaceno = 0; ifaceno < niface; ifaceno++) { 184 DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno)); 185 r = usbd_device2interface_handle(dev, ifaceno, &iface); 186 if (r != USBD_NORMAL_COMPLETION) 187 return (r); 188 r = usbd_endpoint_count(iface, &nendpt); 189 if (r != USBD_NORMAL_COMPLETION) 190 return (r); 191 for (endptno = 0; endptno < nendpt; endptno++) { 192 ed = usbd_interface2endpoint_descriptor(iface,endptno); 193 endpt = ed->bEndpointAddress; 194 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)] 195 [UE_GET_IN(endpt)]; 196 DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x(%d,%d), sce=%p\n", 197 endptno, endpt, UE_GET_ADDR(endpt), 198 UE_GET_IN(endpt), sce)); 199 sce->sc = sc; 200 sce->edesc = ed; 201 sce->iface = iface; 202 } 203 } 204 return (USBD_NORMAL_COMPLETION); 205 } 206 207 void 208 ugen_disco(p) 209 void *p; 210 { 211 struct ugen_softc *sc = p; 212 sc->sc_disconnected = 1; 213 } 214 215 int 216 ugenopen(dev, flag, mode, p) 217 dev_t dev; 218 int flag; 219 int mode; 220 struct proc *p; 221 { 222 int unit = UGENUNIT(dev); 223 int endpt = UGENENDPOINT(dev); 224 usb_endpoint_descriptor_t *edesc; 225 struct ugen_softc *sc; 226 struct ugen_endpoint *sce; 227 int dir, isize; 228 usbd_status r; 229 230 DPRINTFN(5, ("ugenopen: flag=%d, unit=%d endpt=%d\n", 231 flag, unit, endpt)); 232 if (unit >= ugen_cd.cd_ndevs) 233 return (ENXIO); 234 sc = ugen_cd.cd_devs[unit]; 235 if (!sc) 236 return (ENXIO); 237 238 if (sc->sc_disconnected) 239 return (EIO); 240 241 if (endpt == USB_CONTROL_ENDPOINT) { 242 /*if ((flag & (FWRITE|FREAD)) != (FWRITE|FREAD)) 243 return (EACCES);*/ 244 sce = &sc->sc_endpoints[USB_CONTROL_ENDPOINT][OUT]; 245 if (sce->state & UGEN_OPEN) 246 return (EBUSY); 247 } else { 248 switch (flag & (FWRITE|FREAD)) { 249 case FWRITE: 250 dir = OUT; 251 break; 252 case FREAD: 253 dir = IN; 254 break; 255 default: 256 return (EACCES); 257 } 258 sce = &sc->sc_endpoints[endpt][dir]; 259 DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n", sc, endpt, dir, sce)); 260 if (sce->state & UGEN_OPEN) 261 return (EBUSY); 262 edesc = sce->edesc; 263 if (!edesc) 264 return (ENXIO); 265 switch (edesc->bmAttributes & UE_XFERTYPE) { 266 case UE_INTERRUPT: 267 isize = UGETW(edesc->wMaxPacketSize); 268 if (isize == 0) /* shouldn't happen */ 269 return (EINVAL); 270 sce->ibuf = malloc(isize, M_USB, M_NOWAIT); 271 DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n", 272 endpt, isize)); 273 if (clalloc(&sce->q, UGEN_IBSIZE, 0) == -1) 274 return (ENOMEM); 275 r = usbd_open_pipe_intr(sce->iface, 276 edesc->bEndpointAddress, 277 USBD_SHORT_XFER_OK, &sce->pipeh, sce, 278 sce->ibuf, isize, ugenintr); 279 if (r != USBD_NORMAL_COMPLETION) { 280 free(sce->ibuf, M_USB); 281 clfree(&sce->q); 282 return (EIO); 283 } 284 usbd_set_disco(sce->pipeh, ugen_disco, sc); 285 DPRINTFN(5, ("ugenopen: interrupt open done\n")); 286 break; 287 case UE_BULK: 288 r = usbd_open_pipe(sce->iface, 289 edesc->bEndpointAddress, 0, 290 &sce->pipeh); 291 if (r != USBD_NORMAL_COMPLETION) 292 return (EIO); 293 break; 294 case UE_CONTROL: 295 case UE_ISOCHRONOUS: 296 return (EINVAL); 297 } 298 } 299 sce->state |= UGEN_OPEN; 300 return (0); 301 } 302 303 int 304 ugenclose(dev, flag, mode, p) 305 dev_t dev; 306 int flag; 307 int mode; 308 struct proc *p; 309 { 310 struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)]; 311 int endpt = UGENENDPOINT(dev); 312 struct ugen_endpoint *sce; 313 int dir; 314 315 DPRINTFN(5, ("ugenclose\n")); 316 if (sc->sc_disconnected) 317 return (EIO); 318 319 if (endpt == USB_CONTROL_ENDPOINT) { 320 sc->sc_endpoints[endpt][OUT].state &= ~UGEN_OPEN; 321 return (0); 322 } 323 dir = flag & FWRITE ? OUT : IN; 324 sce = &sc->sc_endpoints[endpt][dir]; 325 sce->state &= ~UGEN_OPEN; 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 size_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 "ugenrea", 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 /* XXX use callback to enable interrupt? */ 410 r = usbd_setup_request(reqh, sce->pipeh, 0, buf, n, 411 0, USBD_NO_TIMEOUT, 0); 412 if (r != USBD_NORMAL_COMPLETION) { 413 error = EIO; 414 break; 415 } 416 DPRINTFN(1, ("ugenread: transfer %d bytes\n", n)); 417 r = usbd_sync_transfer(reqh); 418 if (r != USBD_NORMAL_COMPLETION) { 419 DPRINTF(("ugenread: error=%d\n", r)); 420 usbd_clear_endpoint_stall(sce->pipeh); 421 error = EIO; 422 break; 423 } 424 error = uiomove(buf, n, uio); 425 if (error) 426 break; 427 } 428 usbd_free_request(reqh); 429 break; 430 default: 431 return (ENXIO); 432 } 433 434 return (error); 435 } 436 437 int 438 ugenwrite(dev, uio, flag) 439 dev_t dev; 440 struct uio *uio; 441 int flag; 442 { 443 struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)]; 444 int endpt = UGENENDPOINT(dev); 445 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 446 size_t n; 447 int error = 0; 448 char buf[UGEN_BBSIZE]; 449 usbd_request_handle reqh; 450 usbd_status r; 451 452 if (sc->sc_disconnected) 453 return (EIO); 454 455 #ifdef DIAGNOSTIC 456 if (!sce->edesc) { 457 printf("ugenwrite: no edesc\n"); 458 return (EIO); 459 } 460 #endif 461 462 DPRINTF(("ugenwrite\n")); 463 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 464 case UE_BULK: 465 reqh = usbd_alloc_request(); 466 if (reqh == 0) 467 return (EIO); 468 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 469 error = uiomove(buf, n, uio); 470 if (error) 471 break; 472 /* XXX use callback to enable interrupt? */ 473 r = usbd_setup_request(reqh, sce->pipeh, 0, buf, n, 474 0, USBD_NO_TIMEOUT, 0); 475 if (r != USBD_NORMAL_COMPLETION) { 476 error = EIO; 477 break; 478 } 479 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 480 r = usbd_sync_transfer(reqh); 481 if (r != USBD_NORMAL_COMPLETION) { 482 DPRINTF(("ugenwrite: error=%d\n", r)); 483 usbd_clear_endpoint_stall(sce->pipeh); 484 error = EIO; 485 break; 486 } 487 } 488 usbd_free_request(reqh); 489 break; 490 default: 491 return (ENXIO); 492 } 493 return (error); 494 } 495 496 497 void 498 ugenintr(reqh, addr, status) 499 usbd_request_handle reqh; 500 usbd_private_handle addr; 501 usbd_status status; 502 { 503 struct ugen_endpoint *sce = addr; 504 /*struct ugen_softc *sc = sce->sc;*/ 505 u_char *ibuf; 506 int isize; 507 508 if (status == USBD_CANCELLED) 509 return; 510 511 if (status != USBD_NORMAL_COMPLETION) { 512 DPRINTF(("ugenintr: status=%d\n", status)); 513 usbd_clear_endpoint_stall_async(sce->pipeh); 514 return; 515 } 516 517 ibuf = sce->ibuf; 518 isize = UGETW(sce->edesc->wMaxPacketSize); 519 520 /*DPRINTFN(5, ("ugenintr: addr=%d endpt=%d\n", 521 addr, endpt, isize)); 522 DPRINTFN(5, (" data = %02x %02x %02x\n", 523 ibuf[0], ibuf[1], ibuf[2]));*/ 524 525 (void)b_to_q(ibuf, isize, &sce->q); 526 527 if (sce->state & UGEN_ASLP) { 528 sce->state &= ~UGEN_ASLP; 529 DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); 530 wakeup((caddr_t)sce); 531 } 532 selwakeup(&sce->rsel); 533 } 534 535 usbd_status 536 ugen_set_interface(sc, ifaceidx, altno) 537 struct ugen_softc *sc; 538 int ifaceidx, altno; 539 { 540 usbd_interface_handle iface; 541 usb_endpoint_descriptor_t *ed; 542 usbd_status r; 543 struct ugen_endpoint *sce; 544 u_int8_t niface, nendpt, endptno, endpt; 545 546 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); 547 548 r = usbd_interface_count(sc->sc_udev, &niface); 549 if (r != USBD_NORMAL_COMPLETION) 550 return (r); 551 if (ifaceidx < 0 || ifaceidx >= niface) 552 return (USBD_INVAL); 553 554 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 555 if (r != USBD_NORMAL_COMPLETION) 556 return (r); 557 r = usbd_endpoint_count(iface, &nendpt); 558 if (r != USBD_NORMAL_COMPLETION) 559 return (r); 560 for (endptno = 0; endptno < nendpt; endptno++) { 561 ed = usbd_interface2endpoint_descriptor(iface,endptno); 562 endpt = ed->bEndpointAddress; 563 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][UE_GET_IN(endpt)]; 564 sce->sc = 0; 565 sce->edesc = 0; 566 sce->iface = 0; 567 } 568 569 /* change setting */ 570 r = usbd_set_interface(iface, altno); 571 if (r != USBD_NORMAL_COMPLETION) 572 return (r); 573 574 r = usbd_endpoint_count(iface, &nendpt); 575 if (r != USBD_NORMAL_COMPLETION) 576 return (r); 577 for (endptno = 0; endptno < nendpt; endptno++) { 578 ed = usbd_interface2endpoint_descriptor(iface,endptno); 579 endpt = ed->bEndpointAddress; 580 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][UE_GET_IN(endpt)]; 581 sce->sc = sc; 582 sce->edesc = ed; 583 sce->iface = iface; 584 } 585 return (0); 586 } 587 588 /* Retrieve a complete descriptor for a certain device and index. */ 589 usb_config_descriptor_t * 590 ugen_get_cdesc(sc, index, lenp) 591 struct ugen_softc *sc; 592 int index; 593 int *lenp; 594 { 595 usb_config_descriptor_t *cdesc, *tdesc, cdescr; 596 int len; 597 usbd_status r; 598 599 if (index == USB_CURRENT_CONFIG_INDEX) { 600 tdesc = usbd_get_config_descriptor(sc->sc_udev); 601 len = UGETW(tdesc->wTotalLength); 602 if (lenp) 603 *lenp = len; 604 cdesc = malloc(len, M_TEMP, M_WAITOK); 605 memcpy(cdesc, tdesc, len); 606 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); 607 } else { 608 r = usbd_get_config_desc(sc->sc_udev, index, &cdescr); 609 if (r != USBD_NORMAL_COMPLETION) 610 return (0); 611 len = UGETW(cdescr.wTotalLength); 612 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); 613 if (lenp) 614 *lenp = len; 615 cdesc = malloc(len, M_TEMP, M_WAITOK); 616 r = usbd_get_config_desc_full(sc->sc_udev, index, cdesc, len); 617 if (r != USBD_NORMAL_COMPLETION) { 618 free(cdesc, M_TEMP); 619 return (0); 620 } 621 } 622 return (cdesc); 623 } 624 625 int 626 ugen_get_alt_index(sc, ifaceidx) 627 struct ugen_softc *sc; 628 int ifaceidx; 629 { 630 usbd_interface_handle iface; 631 usbd_status r; 632 633 r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 634 if (r != USBD_NORMAL_COMPLETION) 635 return (-1); 636 return (usbd_get_interface_altindex(iface)); 637 } 638 639 int 640 ugenioctl(dev, cmd, addr, flag, p) 641 dev_t dev; 642 u_long cmd; 643 caddr_t addr; 644 int flag; 645 struct proc *p; 646 { 647 struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)]; 648 int endpt = UGENENDPOINT(dev); 649 usbd_status r; 650 usbd_interface_handle iface; 651 struct usb_config_desc *cd; 652 usb_config_descriptor_t *cdesc; 653 struct usb_interface_desc *id; 654 usb_interface_descriptor_t *idesc; 655 struct usb_endpoint_desc *ed; 656 usb_endpoint_descriptor_t *edesc; 657 struct usb_alt_interface *ai; 658 struct usb_string_desc *si; 659 u_int8_t conf, alt; 660 661 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 662 if (sc->sc_disconnected) 663 return (EIO); 664 665 switch (cmd) { 666 case FIONBIO: 667 /* All handled in the upper FS layer. */ 668 return (0); 669 default: 670 break; 671 } 672 673 if (endpt != USB_CONTROL_ENDPOINT) 674 return (EINVAL); 675 676 switch (cmd) { 677 case USB_GET_CONFIG: 678 r = usbd_get_config(sc->sc_udev, &conf); 679 if (r != USBD_NORMAL_COMPLETION) 680 return (EIO); 681 *(int *)addr = conf; 682 break; 683 case USB_SET_CONFIG: 684 if (!(flag & FWRITE)) 685 return (EPERM); 686 r = usbd_set_config_no(sc->sc_udev, *(int *)addr, 0); 687 if (r != USBD_NORMAL_COMPLETION) 688 return (EIO); 689 break; 690 case USB_GET_ALTINTERFACE: 691 ai = (struct usb_alt_interface *)addr; 692 r = usbd_device2interface_handle(sc->sc_udev, 693 ai->interface_index, &iface); 694 if (r != USBD_NORMAL_COMPLETION) 695 return (EINVAL); 696 idesc = usbd_get_interface_descriptor(iface); 697 if (!idesc) 698 return (EIO); 699 ai->alt_no = idesc->bAlternateSetting; 700 break; 701 case USB_SET_ALTINTERFACE: 702 if (!(flag & FWRITE)) 703 return (EPERM); 704 ai = (struct usb_alt_interface *)addr; 705 r = usbd_device2interface_handle(sc->sc_udev, 706 ai->interface_index, &iface); 707 if (r != USBD_NORMAL_COMPLETION) 708 return (EINVAL); 709 r = ugen_set_interface(sc, ai->interface_index, ai->alt_no); 710 if (r != USBD_NORMAL_COMPLETION) 711 return (EINVAL); 712 break; 713 case USB_GET_NO_ALT: 714 ai = (struct usb_alt_interface *)addr; 715 cdesc = ugen_get_cdesc(sc, ai->config_index, 0); 716 if (!cdesc) 717 return (EINVAL); 718 idesc = usbd_find_idesc(cdesc, ai->interface_index, 0); 719 if (!idesc) 720 return (EINVAL); 721 ai->alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); 722 break; 723 case USB_GET_DEVICE_DESC: 724 *(usb_device_descriptor_t *)addr = 725 *usbd_get_device_descriptor(sc->sc_udev); 726 break; 727 case USB_GET_CONFIG_DESC: 728 cd = (struct usb_config_desc *)addr; 729 cdesc = ugen_get_cdesc(sc, cd->config_index, 0); 730 if (!cdesc) 731 return (EINVAL); 732 cd->desc = *cdesc; 733 free(cdesc, M_TEMP); 734 break; 735 case USB_GET_INTERFACE_DESC: 736 id = (struct usb_interface_desc *)addr; 737 cdesc = ugen_get_cdesc(sc, id->config_index, 0); 738 if (!cdesc) 739 return (EINVAL); 740 if (id->config_index == USB_CURRENT_CONFIG_INDEX && 741 id->alt_index == USB_CURRENT_ALT_INDEX) 742 alt = ugen_get_alt_index(sc, id->interface_index); 743 else 744 alt = id->alt_index; 745 idesc = usbd_find_idesc(cdesc, id->interface_index, alt); 746 if (!idesc) { 747 free(cdesc, M_TEMP); 748 return (EINVAL); 749 } 750 id->desc = *idesc; 751 free(cdesc, M_TEMP); 752 break; 753 case USB_GET_ENDPOINT_DESC: 754 ed = (struct usb_endpoint_desc *)addr; 755 cdesc = ugen_get_cdesc(sc, ed->config_index, 0); 756 if (!cdesc) 757 return (EINVAL); 758 if (ed->config_index == USB_CURRENT_CONFIG_INDEX && 759 ed->alt_index == USB_CURRENT_ALT_INDEX) 760 alt = ugen_get_alt_index(sc, ed->interface_index); 761 else 762 alt = ed->alt_index; 763 edesc = usbd_find_edesc(cdesc, ed->interface_index, 764 alt, ed->endpoint_index); 765 if (!edesc) { 766 free(cdesc, M_TEMP); 767 return (EINVAL); 768 } 769 ed->desc = *edesc; 770 free(cdesc, M_TEMP); 771 break; 772 case USB_GET_FULL_DESC: 773 { 774 int len; 775 struct iovec iov; 776 struct uio uio; 777 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 778 int error; 779 780 cdesc = ugen_get_cdesc(sc, fd->config_index, &len); 781 if (len > fd->size) 782 len = fd->size; 783 iov.iov_base = (caddr_t)fd->data; 784 iov.iov_len = len; 785 uio.uio_iov = &iov; 786 uio.uio_iovcnt = 1; 787 uio.uio_resid = len; 788 uio.uio_offset = 0; 789 uio.uio_segflg = UIO_USERSPACE; 790 uio.uio_rw = UIO_READ; 791 uio.uio_procp = p; 792 error = uiomove(cdesc, len, &uio); 793 free(cdesc, M_TEMP); 794 return (error); 795 } 796 case USB_GET_STRING_DESC: 797 si = (struct usb_string_desc *)addr; 798 r = usbd_get_string_desc(sc->sc_udev, si->string_index, si->language_id, &si->desc); 799 if (r != USBD_NORMAL_COMPLETION) 800 return (EINVAL); 801 break; 802 case USB_DO_REQUEST: 803 { 804 struct usb_ctl_request *ur = (void *)addr; 805 int len = UGETW(ur->request.wLength); 806 struct iovec iov; 807 struct uio uio; 808 void *ptr = 0; 809 usbd_status r; 810 int error = 0; 811 812 if (!(flag & FWRITE)) 813 return (EPERM); 814 /* Avoid requests that would damage the bus integrity. */ 815 if ((ur->request.bmRequestType == UT_WRITE_DEVICE && 816 ur->request.bRequest == UR_SET_ADDRESS) || 817 (ur->request.bmRequestType == UT_WRITE_DEVICE && 818 ur->request.bRequest == UR_SET_CONFIG) || 819 (ur->request.bmRequestType == UT_WRITE_INTERFACE && 820 ur->request.bRequest == UR_SET_INTERFACE)) 821 return (EINVAL); 822 823 if (len < 0 || len > 32767) 824 return (EINVAL); 825 if (len != 0) { 826 iov.iov_base = (caddr_t)ur->data; 827 iov.iov_len = len; 828 uio.uio_iov = &iov; 829 uio.uio_iovcnt = 1; 830 uio.uio_resid = len; 831 uio.uio_offset = 0; 832 uio.uio_segflg = UIO_USERSPACE; 833 uio.uio_rw = 834 ur->request.bmRequestType & UT_READ ? 835 UIO_READ : UIO_WRITE; 836 uio.uio_procp = p; 837 ptr = malloc(len, M_TEMP, M_WAITOK); 838 if (uio.uio_rw == UIO_WRITE) { 839 error = uiomove(ptr, len, &uio); 840 if (error) 841 goto ret; 842 } 843 } 844 r = usbd_do_request(sc->sc_udev, &ur->request, ptr); 845 if (r) { 846 error = EIO; 847 goto ret; 848 } 849 if (len != 0) { 850 if (uio.uio_rw == UIO_READ) { 851 error = uiomove(ptr, len, &uio); 852 if (error) 853 goto ret; 854 } 855 } 856 ret: 857 if (ptr) 858 free(ptr, M_TEMP); 859 return (error); 860 } 861 case USB_GET_DEVICEINFO: 862 usbd_fill_deviceinfo(sc->sc_udev, 863 (struct usb_device_info *)addr); 864 break; 865 default: 866 return (EINVAL); 867 } 868 return (0); 869 } 870 871 int 872 ugenpoll(dev, events, p) 873 dev_t dev; 874 int events; 875 struct proc *p; 876 { 877 struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)]; 878 /* XXX */ 879 struct ugen_endpoint *sce; 880 int revents = 0; 881 int s; 882 883 if (sc->sc_disconnected) 884 return (EIO); 885 886 s = splusb(); 887 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 888 case UE_INTERRUPT: 889 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 890 if (events & (POLLIN | POLLRDNORM)) { 891 if (sce->q.c_cc > 0) 892 revents |= events & (POLLIN | POLLRDNORM); 893 else 894 selrecord(p, &sce->rsel); 895 } 896 break; 897 case UE_BULK: 898 /* 899 * We have no easy way of determining if a read will 900 * yield any data or a write will happen. 901 * Pretend they will. 902 */ 903 revents |= events & 904 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 905 break; 906 default: 907 break; 908 } 909 splx(s); 910 return (revents); 911 } 912
Indexes created Fri Sep 26 20:09:58 GMT 2025