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sys/dev/usb/ugen.c
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1 /* $NetBSD: ugen.c,v 1.79 2006/03/01 12:38:13 yamt Exp $ */ 2 3 /* Also already merged from NetBSD: 4 * $NetBSD: ugen.c,v 1.61 2002/09/23 05:51:20 simonb Exp $ 5 * $NetBSD: ugen.c,v 1.64 2003/06/28 14:21:46 darrenr Exp $ 6 * $NetBSD: ugen.c,v 1.65 2003/06/29 22:30:56 fvdl Exp $ 7 * $NetBSD: ugen.c,v 1.68 2004/06/23 02:30:52 mycroft Exp $ 8 */ 9 10 #include <sys/cdefs.h> 11 __FBSDID("$FreeBSD: releng/7.3/sys/dev/usb/ugen.c 190251 2009-03-22 06:37:14Z n_hibma $"); 12 13 /*- 14 * Copyright (c) 1998 The NetBSD Foundation, Inc. 15 * All rights reserved. 16 * 17 * This code is derived from software contributed to The NetBSD Foundation 18 * by Lennart Augustsson (lennart@augustsson.net) at 19 * Carlstedt Research & Technology. 20 * 21 * Redistribution and use in source and binary forms, with or without 22 * modification, are permitted provided that the following conditions 23 * are met: 24 * 1. Redistributions of source code must retain the above copyright 25 * notice, this list of conditions and the following disclaimer. 26 * 2. Redistributions in binary form must reproduce the above copyright 27 * notice, this list of conditions and the following disclaimer in the 28 * documentation and/or other materials provided with the distribution. 29 * 3. All advertising materials mentioning features or use of this software 30 * must display the following acknowledgement: 31 * This product includes software developed by the NetBSD 32 * Foundation, Inc. and its contributors. 33 * 4. Neither the name of The NetBSD Foundation nor the names of its 34 * contributors may be used to endorse or promote products derived 35 * from this software without specific prior written permission. 36 * 37 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 38 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 39 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 40 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 41 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 42 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 43 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 44 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 45 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 47 * POSSIBILITY OF SUCH DAMAGE. 48 */ 49 50 51 #include <sys/param.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 #include <sys/malloc.h> 55 #include <sys/module.h> 56 #include <sys/bus.h> 57 #include <sys/ioccom.h> 58 #include <sys/conf.h> 59 #include <sys/fcntl.h> 60 #include <sys/filio.h> 61 #include <sys/tty.h> 62 #include <sys/file.h> 63 #include <sys/selinfo.h> 64 #include <sys/poll.h> 65 #include <sys/sysctl.h> 66 #include <sys/uio.h> 67 68 #include <dev/usb/usb.h> 69 #include <dev/usb/usbdi.h> 70 #include <dev/usb/usbdi_util.h> 71 72 #ifdef USB_DEBUG 73 #define DPRINTF(x) if (ugendebug) printf x 74 #define DPRINTFN(n,x) if (ugendebug>(n)) printf x 75 int ugendebug = 0; 76 SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB ugen"); 77 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RW, 78 &ugendebug, 0, "ugen debug level"); 79 #else 80 #define DPRINTF(x) 81 #define DPRINTFN(n,x) 82 #endif 83 84 #define UGEN_CHUNK 128 /* chunk size for read */ 85 #define UGEN_IBSIZE 1020 /* buffer size */ 86 #define UGEN_BBSIZE 1024 87 88 #define UGEN_NISOFRAMES 500 /* 0.5 seconds worth */ 89 #define UGEN_NISOREQS 6 /* number of outstanding xfer requests */ 90 #define UGEN_NISORFRMS 4 /* number of frames (miliseconds) per req */ 91 92 struct ugen_endpoint { 93 struct ugen_softc *sc; 94 struct cdev *dev; 95 usb_endpoint_descriptor_t *edesc; 96 usbd_interface_handle iface; 97 int state; 98 #define UGEN_ASLP 0x02 /* waiting for data */ 99 #define UGEN_SHORT_OK 0x04 /* short xfers are OK */ 100 usbd_pipe_handle pipeh; 101 struct clist q; 102 struct selinfo rsel; 103 u_char *ibuf; /* start of buffer (circular for isoc) */ 104 u_char *fill; /* location for input (isoc) */ 105 u_char *limit; /* end of circular buffer (isoc) */ 106 u_char *cur; /* current read location (isoc) */ 107 u_int32_t timeout; 108 struct isoreq { 109 struct ugen_endpoint *sce; 110 usbd_xfer_handle xfer; 111 void *dmabuf; 112 u_int16_t sizes[UGEN_NISORFRMS]; 113 } isoreqs[UGEN_NISOREQS]; 114 }; 115 116 struct ugen_softc { 117 device_t sc_dev; /* base device */ 118 usbd_device_handle sc_udev; 119 struct cdev *dev; 120 121 char sc_is_open[USB_MAX_ENDPOINTS]; 122 struct ugen_endpoint sc_endpoints[USB_MAX_ENDPOINTS][2]; 123 #define OUT 0 124 #define IN 1 125 126 #define UGEN_DEV_REF(dev, sc) \ 127 if ((sc)->sc_dying || dev_refthread(dev) == NULL) \ 128 return (ENXIO) 129 #define UGEN_DEV_RELE(dev, sc) \ 130 dev_relthread(dev) 131 #define UGEN_DEV_OPEN(dev, sc) \ 132 /* handled by dev layer */ 133 #define UGEN_DEV_CLOSE(dev, sc) \ 134 /* handled by dev layer */ 135 u_char sc_dying; 136 }; 137 138 d_open_t ugenopen; 139 d_close_t ugenclose; 140 d_read_t ugenread; 141 d_write_t ugenwrite; 142 d_ioctl_t ugenioctl; 143 d_poll_t ugenpoll; 144 d_purge_t ugenpurge; 145 146 static struct cdevsw ugenctl_cdevsw = { 147 .d_version = D_VERSION, 148 .d_flags = D_NEEDGIANT, 149 .d_open = ugenopen, 150 .d_close = ugenclose, 151 .d_ioctl = ugenioctl, 152 .d_purge = ugenpurge, 153 .d_name = "ugenctl", 154 }; 155 156 static struct cdevsw ugen_cdevsw = { 157 .d_version = D_VERSION, 158 .d_flags = D_NEEDGIANT, 159 .d_open = ugenopen, 160 .d_close = ugenclose, 161 .d_read = ugenread, 162 .d_write = ugenwrite, 163 .d_ioctl = ugenioctl, 164 .d_poll = ugenpoll, 165 .d_purge = ugenpurge, 166 .d_name = "ugen", 167 }; 168 169 static void ugenintr(usbd_xfer_handle xfer, usbd_private_handle addr, 170 usbd_status status); 171 static void ugen_isoc_rintr(usbd_xfer_handle xfer, usbd_private_handle addr, 172 usbd_status status); 173 static int ugen_do_read(struct ugen_softc *, int, struct uio *, int); 174 static int ugen_do_write(struct ugen_softc *, int, struct uio *, int); 175 static int ugen_do_ioctl(struct ugen_softc *, int, u_long, 176 caddr_t, int, struct thread *); 177 static void ugen_make_devnodes(struct ugen_softc *sc); 178 static void ugen_destroy_devnodes(struct ugen_softc *sc); 179 static int ugen_set_config(struct ugen_softc *sc, int configno); 180 static usb_config_descriptor_t *ugen_get_cdesc(struct ugen_softc *sc, 181 int index, int *lenp); 182 static usbd_status ugen_set_interface(struct ugen_softc *, int, int); 183 static int ugen_get_alt_index(struct ugen_softc *sc, int ifaceidx); 184 185 #define UGENUNIT(n) ((minor(n) >> 4) & 0xf) 186 #define UGENENDPOINT(n) (minor(n) & 0xf) 187 #define UGENMINOR(u, e) (((u) << 4) | (e)) 188 189 static device_probe_t ugen_match; 190 static device_attach_t ugen_attach; 191 static device_detach_t ugen_detach; 192 193 static devclass_t ugen_devclass; 194 195 static device_method_t ugen_methods[] = { 196 DEVMETHOD(device_probe, ugen_match), 197 DEVMETHOD(device_attach, ugen_attach), 198 DEVMETHOD(device_detach, ugen_detach), 199 {0,0}, 200 {0,0} 201 }; 202 203 static driver_t ugen_driver = { 204 "ugen", 205 ugen_methods, 206 sizeof(struct ugen_softc) 207 }; 208 209 MODULE_DEPEND(ugen, usb, 1, 1, 1); 210 211 static int 212 ugen_match(device_t self) 213 { 214 struct usb_attach_arg *uaa = device_get_ivars(self); 215 216 #if 0 217 if (uaa->matchlvl) 218 return (uaa->matchlvl); 219 #endif 220 if (uaa->usegeneric) 221 return (UMATCH_GENERIC); 222 else 223 return (UMATCH_NONE); 224 } 225 226 static int 227 ugen_attach(device_t self) 228 { 229 struct ugen_softc *sc = device_get_softc(self); 230 struct usb_attach_arg *uaa = device_get_ivars(self); 231 usbd_device_handle udev; 232 usbd_status err; 233 int conf; 234 235 sc->sc_dev = self; 236 sc->sc_udev = udev = uaa->device; 237 238 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints); 239 240 /* First set configuration index 0, the default one for ugen. */ 241 err = usbd_set_config_index(udev, 0, 0); 242 if (err) { 243 printf("%s: setting configuration index 0 failed\n", 244 device_get_nameunit(sc->sc_dev)); 245 sc->sc_dying = 1; 246 return (ENXIO); 247 } 248 conf = usbd_get_config_descriptor(udev)->bConfigurationValue; 249 250 /* Set up all the local state for this configuration. */ 251 err = ugen_set_config(sc, conf); 252 if (err) { 253 printf("%s: setting configuration %d failed\n", 254 device_get_nameunit(sc->sc_dev), conf); 255 sc->sc_dying = 1; 256 return (ENXIO); 257 } 258 259 /* the main device, ctrl endpoint */ 260 sc->dev = make_dev(&ugenctl_cdevsw, 261 UGENMINOR(device_get_unit(sc->sc_dev), 0), UID_ROOT, GID_OPERATOR, 0644, 262 "%s", device_get_nameunit(sc->sc_dev)); 263 ugen_make_devnodes(sc); 264 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); 265 return (0); 266 } 267 268 static void 269 ugen_make_devnodes(struct ugen_softc *sc) 270 { 271 int endptno; 272 struct cdev *dev; 273 274 for (endptno = 1; endptno < USB_MAX_ENDPOINTS; endptno++) { 275 if (sc->sc_endpoints[endptno][IN].sc != NULL || 276 sc->sc_endpoints[endptno][OUT].sc != NULL ) { 277 /* endpt can be 0x81 and 0x01, representing 278 * endpoint address 0x01 and IN/OUT directions. 279 * We map both endpts to the same device, 280 * IN is reading from it, OUT is writing to it. 281 * 282 * In the if clause above we check whether one 283 * of the structs is populated. 284 */ 285 dev = make_dev(&ugen_cdevsw, 286 UGENMINOR(device_get_unit(sc->sc_dev), endptno), 287 UID_ROOT, GID_OPERATOR, 0644, 288 "%s.%d", 289 device_get_nameunit(sc->sc_dev), endptno); 290 dev_depends(sc->dev, dev); 291 if (sc->sc_endpoints[endptno][IN].sc != NULL) 292 sc->sc_endpoints[endptno][IN].dev = dev; 293 if (sc->sc_endpoints[endptno][OUT].sc != NULL) 294 sc->sc_endpoints[endptno][OUT].dev = dev; 295 } 296 } 297 } 298 299 static void 300 ugen_destroy_devnodes(struct ugen_softc *sc) 301 { 302 int endptno, prev_sc_dying; 303 struct cdev *dev; 304 305 prev_sc_dying = sc->sc_dying; 306 sc->sc_dying = 1; 307 /* destroy all devices for the other (existing) endpoints as well */ 308 for (endptno = 1; endptno < USB_MAX_ENDPOINTS; endptno++) { 309 if (sc->sc_endpoints[endptno][IN].sc != NULL || 310 sc->sc_endpoints[endptno][OUT].sc != NULL ) { 311 /* endpt can be 0x81 and 0x01, representing 312 * endpoint address 0x01 and IN/OUT directions. 313 * We map both endpoint addresses to the same device, 314 * IN is reading from it, OUT is writing to it. 315 * 316 * In the if clause above we check whether one 317 * of the structs is populated. 318 */ 319 if (sc->sc_endpoints[endptno][IN].sc != NULL) 320 dev = sc->sc_endpoints[endptno][IN].dev; 321 else 322 dev = sc->sc_endpoints[endptno][OUT].dev; 323 324 KASSERT(dev != NULL, 325 ("ugen_destroy_devnodes: NULL dev")); 326 if(dev != NULL) 327 destroy_dev(dev); 328 329 sc->sc_endpoints[endptno][IN].sc = NULL; 330 sc->sc_endpoints[endptno][OUT].sc = NULL; 331 } 332 } 333 sc->sc_dying = prev_sc_dying; 334 } 335 336 static int 337 ugen_set_config(struct ugen_softc *sc, int configno) 338 { 339 usbd_device_handle dev = sc->sc_udev; 340 usbd_interface_handle iface; 341 usb_endpoint_descriptor_t *ed; 342 struct ugen_endpoint *sce, **sce_cache, ***sce_cache_arr; 343 u_int8_t niface, niface_cache, nendpt, *nendpt_cache; 344 int ifaceno, endptno, endpt; 345 usbd_status err; 346 int dir; 347 348 DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n", 349 device_get_nameunit(sc->sc_dev), configno, sc)); 350 351 /* We start at 1, not 0, because we don't care whether the 352 * control endpoint is open or not. It is always present. 353 */ 354 for (endptno = 1; endptno < USB_MAX_ENDPOINTS; endptno++) 355 if (sc->sc_is_open[endptno]) { 356 DPRINTFN(1, 357 ("ugen_set_config: %s - endpoint %d is open\n", 358 device_get_nameunit(sc->sc_dev), endptno)); 359 return (USBD_IN_USE); 360 } 361 362 err = usbd_interface_count(dev, &niface); 363 if (err) 364 return (err); 365 /* store an array of endpoint descriptors to clear if the configuration 366 * change succeeds - these aren't available afterwards */ 367 nendpt_cache = malloc(sizeof(u_int8_t) * niface, M_TEMP, M_WAITOK | 368 M_ZERO); 369 sce_cache_arr = malloc(sizeof(struct ugen_endpoint **) * niface, M_TEMP, 370 M_WAITOK | M_ZERO); 371 niface_cache = niface; 372 373 for (ifaceno = 0; ifaceno < niface; ifaceno++) { 374 DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno)); 375 err = usbd_device2interface_handle(dev, ifaceno, &iface); 376 if (err) 377 panic("ugen_set_config: can't obtain interface handle"); 378 err = usbd_endpoint_count(iface, &nendpt); 379 if (err) 380 panic("ugen_set_config: endpoint count failed"); 381 382 /* store endpoint descriptors for each interface */ 383 nendpt_cache[ifaceno] = nendpt; 384 sce_cache = malloc(sizeof(struct ugen_endpoint *) * nendpt, M_TEMP, 385 M_WAITOK); 386 sce_cache_arr[ifaceno] = sce_cache; 387 388 for (endptno = 0; endptno < nendpt; endptno++) { 389 ed = usbd_interface2endpoint_descriptor(iface,endptno); 390 endpt = ed->bEndpointAddress; 391 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 392 sce_cache[endptno] = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 393 } 394 } 395 396 /* Avoid setting the current value. */ 397 if (usbd_get_config_descriptor(dev)->bConfigurationValue != configno) { 398 /* attempt to perform the configuration change */ 399 err = usbd_set_config_no(dev, configno, 1); 400 if (err) { 401 for(ifaceno = 0; ifaceno < niface_cache; ifaceno++) 402 free(sce_cache_arr[ifaceno], M_TEMP); 403 free(sce_cache_arr, M_TEMP); 404 free(nendpt_cache, M_TEMP); 405 return (err); 406 } 407 } 408 409 ugen_destroy_devnodes(sc); 410 411 /* now we can clear the old interface's ugen_endpoints */ 412 for(ifaceno = 0; ifaceno < niface_cache; ifaceno++) { 413 sce_cache = sce_cache_arr[ifaceno]; 414 for(endptno = 0; endptno < nendpt_cache[ifaceno]; endptno++) { 415 sce = sce_cache[endptno]; 416 sce->sc = 0; 417 sce->edesc = 0; 418 sce->iface = 0; 419 } 420 } 421 422 /* and free the cache storing them */ 423 for(ifaceno = 0; ifaceno < niface_cache; ifaceno++) 424 free(sce_cache_arr[ifaceno], M_TEMP); 425 free(sce_cache_arr, M_TEMP); 426 free(nendpt_cache, M_TEMP); 427 428 /* no endpoints if the device is in the unconfigured state */ 429 if (configno != USB_UNCONFIG_NO) 430 { 431 /* set the new configuration's ugen_endpoints */ 432 err = usbd_interface_count(dev, &niface); 433 if (err) 434 panic("ugen_set_config: interface count failed"); 435 436 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints); 437 for (ifaceno = 0; ifaceno < niface; ifaceno++) { 438 DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno)); 439 err = usbd_device2interface_handle(dev, ifaceno, &iface); 440 if (err) 441 panic("ugen_set_config: can't obtain interface handle"); 442 err = usbd_endpoint_count(iface, &nendpt); 443 if (err) 444 panic("ugen_set_config: endpoint count failed"); 445 for (endptno = 0; endptno < nendpt; endptno++) { 446 ed = usbd_interface2endpoint_descriptor(iface,endptno); 447 endpt = ed->bEndpointAddress; 448 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 449 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 450 DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x" 451 "(%d,%d), sce=%p\n", 452 endptno, endpt, UE_GET_ADDR(endpt), 453 UE_GET_DIR(endpt), sce)); 454 sce->sc = sc; 455 sce->edesc = ed; 456 sce->iface = iface; 457 } 458 } 459 } 460 461 return (USBD_NORMAL_COMPLETION); 462 } 463 464 int 465 ugenopen(struct cdev *dev, int flag, int mode, struct thread *p) 466 { 467 struct ugen_softc *sc; 468 int unit = UGENUNIT(dev); 469 int endpt = UGENENDPOINT(dev); 470 usb_endpoint_descriptor_t *edesc; 471 struct ugen_endpoint *sce; 472 int dir, isize; 473 usbd_status err; 474 usbd_xfer_handle xfer; 475 void *buf; 476 int i, j; 477 478 sc = devclass_get_softc(ugen_devclass, unit); 479 if (sc == NULL) 480 return (ENXIO); 481 482 DPRINTFN(5, ("ugenopen: flag=%d, mode=%d, unit=%d endpt=%d\n", 483 flag, mode, unit, endpt)); 484 485 if (sc == NULL || sc->sc_dying) 486 return (ENXIO); 487 488 if (sc->sc_is_open[endpt]) 489 return (EBUSY); 490 491 if (endpt == USB_CONTROL_ENDPOINT) { 492 sc->sc_is_open[USB_CONTROL_ENDPOINT] = 1; 493 UGEN_DEV_OPEN(dev, sc); 494 return (0); 495 } 496 497 /* Make sure there are pipes for all directions. */ 498 for (dir = OUT; dir <= IN; dir++) { 499 if (flag & (dir == OUT ? FWRITE : FREAD)) { 500 sce = &sc->sc_endpoints[endpt][dir]; 501 if (sce->edesc == 0) 502 return (ENXIO); 503 } 504 } 505 506 /* Actually open the pipes. */ 507 /* XXX Should back out properly if it fails. */ 508 for (dir = OUT; dir <= IN; dir++) { 509 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 510 continue; 511 sce = &sc->sc_endpoints[endpt][dir]; 512 sce->state = 0; 513 sce->timeout = USBD_NO_TIMEOUT; 514 DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n", 515 sc, endpt, dir, sce)); 516 edesc = sce->edesc; 517 switch (edesc->bmAttributes & UE_XFERTYPE) { 518 case UE_INTERRUPT: 519 if (dir == OUT) { 520 err = usbd_open_pipe(sce->iface, 521 edesc->bEndpointAddress, 0, &sce->pipeh); 522 if (err) 523 return (EIO); 524 break; 525 } 526 isize = UGETW(edesc->wMaxPacketSize); 527 if (isize == 0) /* shouldn't happen */ 528 return (EINVAL); 529 sce->ibuf = malloc(isize, M_USBDEV, M_WAITOK); 530 DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n", 531 endpt, isize)); 532 if ((clist_alloc_cblocks(&sce->q, UGEN_IBSIZE, 533 UGEN_IBSIZE), 0) == -1) 534 return (ENOMEM); 535 err = usbd_open_pipe_intr(sce->iface, 536 edesc->bEndpointAddress, 537 USBD_SHORT_XFER_OK, &sce->pipeh, sce, 538 sce->ibuf, isize, ugenintr, 539 USBD_DEFAULT_INTERVAL); 540 if (err) { 541 free(sce->ibuf, M_USBDEV); 542 clist_free_cblocks(&sce->q); 543 return (EIO); 544 } 545 DPRINTFN(5, ("ugenopen: interrupt open done\n")); 546 break; 547 case UE_BULK: 548 err = usbd_open_pipe(sce->iface, 549 edesc->bEndpointAddress, 0, &sce->pipeh); 550 if (err) 551 return (EIO); 552 break; 553 case UE_ISOCHRONOUS: 554 if (dir == OUT) 555 return (EINVAL); 556 isize = UGETW(edesc->wMaxPacketSize); 557 if (isize == 0) /* shouldn't happen */ 558 return (EINVAL); 559 sce->ibuf = malloc(isize * UGEN_NISOFRAMES, 560 M_USBDEV, M_WAITOK); 561 sce->cur = sce->fill = sce->ibuf; 562 sce->limit = sce->ibuf + isize * UGEN_NISOFRAMES; 563 DPRINTFN(5, ("ugenopen: isoc endpt=%d, isize=%d\n", 564 endpt, isize)); 565 err = usbd_open_pipe(sce->iface, 566 edesc->bEndpointAddress, 0, &sce->pipeh); 567 if (err) { 568 free(sce->ibuf, M_USBDEV); 569 return (EIO); 570 } 571 for(i = 0; i < UGEN_NISOREQS; ++i) { 572 sce->isoreqs[i].sce = sce; 573 xfer = usbd_alloc_xfer(sc->sc_udev); 574 if (xfer == 0) 575 goto bad; 576 sce->isoreqs[i].xfer = xfer; 577 buf = usbd_alloc_buffer 578 (xfer, isize * UGEN_NISORFRMS); 579 if (buf == 0) { 580 i++; 581 goto bad; 582 } 583 sce->isoreqs[i].dmabuf = buf; 584 for(j = 0; j < UGEN_NISORFRMS; ++j) 585 sce->isoreqs[i].sizes[j] = isize; 586 usbd_setup_isoc_xfer 587 (xfer, sce->pipeh, &sce->isoreqs[i], 588 sce->isoreqs[i].sizes, 589 UGEN_NISORFRMS, USBD_NO_COPY, 590 ugen_isoc_rintr); 591 (void)usbd_transfer(xfer); 592 } 593 DPRINTFN(5, ("ugenopen: isoc open done\n")); 594 break; 595 bad: 596 while (--i >= 0) /* implicit buffer free */ 597 usbd_free_xfer(sce->isoreqs[i].xfer); 598 return (ENOMEM); 599 case UE_CONTROL: 600 sce->timeout = USBD_DEFAULT_TIMEOUT; 601 return (EINVAL); 602 } 603 } 604 sc->sc_is_open[endpt] = 1; 605 UGEN_DEV_OPEN(dev, sc); 606 return (0); 607 } 608 609 int 610 ugenclose(struct cdev *dev, int flag, int mode, struct thread *p) 611 { 612 int endpt = UGENENDPOINT(dev); 613 struct ugen_softc *sc; 614 struct ugen_endpoint *sce; 615 int dir; 616 int i; 617 618 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev)); 619 620 DPRINTFN(5, ("ugenclose: flag=%d, mode=%d, unit=%d, endpt=%d\n", 621 flag, mode, UGENUNIT(dev), endpt)); 622 623 #ifdef DIAGNOSTIC 624 if (!sc->sc_is_open[endpt]) { 625 printf("ugenclose: not open\n"); 626 return (EINVAL); 627 } 628 #endif 629 630 if (endpt == USB_CONTROL_ENDPOINT) { 631 DPRINTFN(5, ("ugenclose: close control\n")); 632 sc->sc_is_open[endpt] = 0; 633 UGEN_DEV_CLOSE(dev, sc); 634 return (0); 635 } 636 637 for (dir = OUT; dir <= IN; dir++) { 638 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 639 continue; 640 sce = &sc->sc_endpoints[endpt][dir]; 641 if (sce->pipeh == NULL) 642 continue; 643 DPRINTFN(5, ("ugenclose: endpt=%d dir=%d sce=%p\n", 644 endpt, dir, sce)); 645 646 usbd_abort_pipe(sce->pipeh); 647 usbd_close_pipe(sce->pipeh); 648 sce->pipeh = NULL; 649 650 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 651 case UE_INTERRUPT: 652 ndflush(&sce->q, sce->q.c_cc); 653 clist_free_cblocks(&sce->q); 654 break; 655 case UE_ISOCHRONOUS: 656 for (i = 0; i < UGEN_NISOREQS; ++i) 657 usbd_free_xfer(sce->isoreqs[i].xfer); 658 659 default: 660 break; 661 } 662 663 if (sce->ibuf != NULL) { 664 free(sce->ibuf, M_USBDEV); 665 sce->ibuf = NULL; 666 clist_free_cblocks(&sce->q); 667 } 668 } 669 sc->sc_is_open[endpt] = 0; 670 UGEN_DEV_CLOSE(dev, sc); 671 672 return (0); 673 } 674 675 static int 676 ugen_do_read(struct ugen_softc *sc, int endpt, struct uio *uio, int flag) 677 { 678 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 679 u_int32_t n, tn; 680 char buf[UGEN_BBSIZE]; 681 usbd_xfer_handle xfer; 682 usbd_status err; 683 int s; 684 int error = 0, doneone = 0; 685 u_char buffer[UGEN_CHUNK]; 686 687 DPRINTFN(5, ("%s: ugenread: %d\n", device_get_nameunit(sc->sc_dev), endpt)); 688 689 if (sc->sc_dying) 690 return (EIO); 691 692 if (endpt == USB_CONTROL_ENDPOINT) 693 return (ENODEV); 694 695 #ifdef DIAGNOSTIC 696 if (sce->edesc == NULL) { 697 printf("ugenread: no edesc\n"); 698 return (EIO); 699 } 700 if (sce->pipeh == NULL) { 701 printf("ugenread: no pipe\n"); 702 return (EIO); 703 } 704 #endif 705 706 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 707 case UE_INTERRUPT: 708 /* Block until activity occurred. */ 709 s = splusb(); 710 while (sce->q.c_cc == 0) { 711 if (flag & O_NONBLOCK) { 712 splx(s); 713 return (EWOULDBLOCK); 714 } 715 sce->state |= UGEN_ASLP; 716 DPRINTFN(5, ("ugenread: sleep on %p\n", sce)); 717 error = tsleep(sce, PZERO | PCATCH, "ugenri", 718 (sce->timeout * hz + 999) / 1000); 719 sce->state &= ~UGEN_ASLP; 720 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 721 if (sc->sc_dying) 722 error = EIO; 723 if (error == EAGAIN) { 724 error = 0; /* timeout, return 0 bytes */ 725 break; 726 } 727 if (error) 728 break; 729 } 730 splx(s); 731 732 /* Transfer as many chunks as possible. */ 733 while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) { 734 n = min(sce->q.c_cc, uio->uio_resid); 735 if (n > sizeof(buffer)) 736 n = sizeof(buffer); 737 738 /* Remove a small chunk from the input queue. */ 739 q_to_b(&sce->q, buffer, n); 740 DPRINTFN(5, ("ugenread: got %d chars\n", n)); 741 742 /* Copy the data to the user process. */ 743 error = uiomove(buffer, n, uio); 744 if (error) 745 break; 746 } 747 break; 748 case UE_BULK: 749 xfer = usbd_alloc_xfer(sc->sc_udev); 750 if (xfer == 0) 751 return (ENOMEM); 752 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0 || 753 !doneone) { 754 DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n)); 755 tn = n; 756 doneone = 1; 757 err = usbd_bulk_transfer( 758 xfer, sce->pipeh, 759 sce->state & UGEN_SHORT_OK ? 760 USBD_SHORT_XFER_OK : 0, 761 sce->timeout, buf, &tn, "ugenrb"); 762 if (err) { 763 if (err == USBD_INTERRUPTED) 764 error = EINTR; 765 else if (err == USBD_TIMEOUT) 766 error = ETIMEDOUT; 767 else 768 error = EIO; 769 break; 770 } 771 DPRINTFN(1, ("ugenread: got %d bytes\n", tn)); 772 error = uiomove(buf, tn, uio); 773 if (error || tn < n) 774 break; 775 } 776 usbd_free_xfer(xfer); 777 break; 778 case UE_ISOCHRONOUS: 779 s = splusb(); 780 while (sce->cur == sce->fill) { 781 if (flag & O_NONBLOCK) { 782 splx(s); 783 return (EWOULDBLOCK); 784 } 785 sce->state |= UGEN_ASLP; 786 DPRINTFN(5, ("ugenread: sleep on %p\n", sce)); 787 error = tsleep(sce, PZERO | PCATCH, "ugenri", 788 (sce->timeout * hz + 999) / 1000); 789 sce->state &= ~UGEN_ASLP; 790 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 791 if (sc->sc_dying) 792 error = EIO; 793 if (error == EAGAIN) { 794 error = 0; /* timeout, return 0 bytes */ 795 break; 796 } 797 if (error) 798 break; 799 } 800 801 while (sce->cur != sce->fill && uio->uio_resid > 0 && !error) { 802 if (sce->fill > sce->cur) 803 n = min(sce->fill - sce->cur, uio->uio_resid); 804 else 805 n = min(sce->limit - sce->cur, uio->uio_resid); 806 807 DPRINTFN(5, ("ugenread: isoc got %d chars\n", n)); 808 809 /* Copy the data to the user process. */ 810 error = uiomove(sce->cur, n, uio); 811 if (error) 812 break; 813 sce->cur += n; 814 if(sce->cur >= sce->limit) 815 sce->cur = sce->ibuf; 816 } 817 splx(s); 818 break; 819 820 821 default: 822 return (ENXIO); 823 } 824 return (error); 825 } 826 827 int 828 ugenread(struct cdev *dev, struct uio *uio, int flag) 829 { 830 int endpt = UGENENDPOINT(dev); 831 struct ugen_softc *sc; 832 int error; 833 834 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev)); 835 836 if (sc->sc_dying) 837 return (EIO); 838 839 UGEN_DEV_REF(dev, sc); 840 error = ugen_do_read(sc, endpt, uio, flag); 841 UGEN_DEV_RELE(dev, sc); 842 return (error); 843 } 844 845 static int 846 ugen_do_write(struct ugen_softc *sc, int endpt, struct uio *uio, int flag) 847 { 848 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT]; 849 u_int32_t n; 850 int error = 0, doneone = 0; 851 char buf[UGEN_BBSIZE]; 852 usbd_xfer_handle xfer; 853 usbd_status err; 854 855 DPRINTFN(5, ("%s: ugenwrite: %d\n", device_get_nameunit(sc->sc_dev), endpt)); 856 857 if (sc->sc_dying) 858 return (EIO); 859 860 if (endpt == USB_CONTROL_ENDPOINT) 861 return (ENODEV); 862 863 #ifdef DIAGNOSTIC 864 if (sce->edesc == NULL) { 865 printf("ugenwrite: no edesc\n"); 866 return (EIO); 867 } 868 if (sce->pipeh == NULL) { 869 printf("ugenwrite: no pipe\n"); 870 return (EIO); 871 } 872 #endif 873 874 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 875 case UE_BULK: 876 xfer = usbd_alloc_xfer(sc->sc_udev); 877 if (xfer == 0) 878 return (EIO); 879 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0 || 880 !doneone) { 881 doneone = 1; 882 error = uiomove(buf, n, uio); 883 if (error) 884 break; 885 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 886 err = usbd_bulk_transfer(xfer, sce->pipeh, 0, 887 sce->timeout, buf, &n,"ugenwb"); 888 if (err) { 889 if (err == USBD_INTERRUPTED) 890 error = EINTR; 891 else if (err == USBD_TIMEOUT) 892 error = ETIMEDOUT; 893 else 894 error = EIO; 895 break; 896 } 897 } 898 usbd_free_xfer(xfer); 899 break; 900 case UE_INTERRUPT: 901 xfer = usbd_alloc_xfer(sc->sc_udev); 902 if (xfer == 0) 903 return (EIO); 904 while ((n = min(UGETW(sce->edesc->wMaxPacketSize), 905 uio->uio_resid)) != 0 || !doneone) { 906 doneone = 1; 907 error = uiomove(buf, n, uio); 908 if (error) 909 break; 910 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 911 err = usbd_intr_transfer(xfer, sce->pipeh, 0, 912 sce->timeout, buf, &n, "ugenwi"); 913 if (err) { 914 if (err == USBD_INTERRUPTED) 915 error = EINTR; 916 else if (err == USBD_TIMEOUT) 917 error = ETIMEDOUT; 918 else 919 error = EIO; 920 break; 921 } 922 } 923 usbd_free_xfer(xfer); 924 break; 925 default: 926 return (ENXIO); 927 } 928 return (error); 929 } 930 931 int 932 ugenwrite(struct cdev *dev, struct uio *uio, int flag) 933 { 934 int endpt = UGENENDPOINT(dev); 935 struct ugen_softc *sc; 936 int error; 937 938 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev)); 939 940 if (sc->sc_dying) 941 return (EIO); 942 943 UGEN_DEV_REF(dev, sc); 944 error = ugen_do_write(sc, endpt, uio, flag); 945 UGEN_DEV_RELE(dev, sc); 946 return (error); 947 } 948 949 void 950 ugenpurge(struct cdev *dev) 951 { 952 int endpt = UGENENDPOINT(dev); 953 struct ugen_endpoint *sce; 954 struct ugen_softc *sc; 955 956 if (endpt == USB_CONTROL_ENDPOINT) 957 return; 958 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev)); 959 sce = &sc->sc_endpoints[endpt][IN]; 960 if (sce->pipeh) 961 usbd_abort_pipe(sce->pipeh); 962 if (sce->state & UGEN_ASLP) { 963 DPRINTFN(5, ("ugenpurge: waking %p\n", sce)); 964 wakeup(sce); 965 } 966 selwakeuppri(&sce->rsel, PZERO); 967 968 sce = &sc->sc_endpoints[endpt][OUT]; 969 if (sce->pipeh) 970 usbd_abort_pipe(sce->pipeh); 971 if (sce->state & UGEN_ASLP) { 972 DPRINTFN(5, ("ugenpurge: waking %p\n", sce)); 973 wakeup(sce); 974 } 975 selwakeuppri(&sce->rsel, PZERO); 976 } 977 978 static int 979 ugen_detach(device_t self) 980 { 981 struct ugen_softc *sc = device_get_softc(self); 982 struct ugen_endpoint *sce; 983 int i, dir; 984 985 DPRINTF(("ugen_detach: sc=%p\n", sc)); 986 987 sc->sc_dying = 1; 988 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 989 for (i = 0; i < USB_MAX_ENDPOINTS; i++) { 990 for (dir = OUT; dir <= IN; dir++) { 991 sce = &sc->sc_endpoints[i][dir]; 992 if (sce->pipeh) 993 usbd_abort_pipe(sce->pipeh); 994 selwakeuppri(&sce->rsel, PZERO); 995 } 996 } 997 998 /* destroy the device for the control endpoint */ 999 destroy_dev(sc->dev); 1000 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); 1001 return (0); 1002 } 1003 1004 static void 1005 ugenintr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status) 1006 { 1007 struct ugen_endpoint *sce = addr; 1008 /*struct ugen_softc *sc = sce->sc;*/ 1009 u_int32_t count; 1010 u_char *ibuf; 1011 1012 if (status == USBD_CANCELLED) 1013 return; 1014 1015 if (status != USBD_NORMAL_COMPLETION) { 1016 DPRINTF(("ugenintr: status=%d\n", status)); 1017 if (status == USBD_STALLED) 1018 usbd_clear_endpoint_stall_async(sce->pipeh); 1019 return; 1020 } 1021 1022 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1023 ibuf = sce->ibuf; 1024 1025 DPRINTFN(5, ("ugenintr: xfer=%p status=%d count=%d\n", 1026 xfer, status, count)); 1027 DPRINTFN(5, (" data = %02x %02x %02x\n", 1028 ibuf[0], ibuf[1], ibuf[2])); 1029 1030 (void)b_to_q(ibuf, count, &sce->q); 1031 1032 if (sce->state & UGEN_ASLP) { 1033 sce->state &= ~UGEN_ASLP; 1034 DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); 1035 wakeup(sce); 1036 } 1037 selwakeuppri(&sce->rsel, PZERO); 1038 } 1039 1040 static void 1041 ugen_isoc_rintr(usbd_xfer_handle xfer, usbd_private_handle addr, 1042 usbd_status status) 1043 { 1044 struct isoreq *req = addr; 1045 struct ugen_endpoint *sce = req->sce; 1046 u_int32_t count, n; 1047 int i, isize; 1048 1049 /* Return if we are aborting. */ 1050 if (status == USBD_CANCELLED) 1051 return; 1052 1053 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 1054 DPRINTFN(5,("ugen_isoc_rintr: xfer %td, count=%d\n", req - sce->isoreqs, 1055 count)); 1056 1057 /* throw away oldest input if the buffer is full */ 1058 if(sce->fill < sce->cur && sce->cur <= sce->fill + count) { 1059 sce->cur += count; 1060 if(sce->cur >= sce->limit) 1061 sce->cur = sce->ibuf + (sce->limit - sce->cur); 1062 DPRINTF(("ugen_isoc_rintr: throwing away %d bytes\n", 1063 count)); 1064 } 1065 1066 isize = UGETW(sce->edesc->wMaxPacketSize); 1067 for (i = 0; i < UGEN_NISORFRMS; i++) { 1068 u_int32_t actlen = req->sizes[i]; 1069 char const *buf = (char const *)req->dmabuf + isize * i; 1070 1071 /* copy data to buffer */ 1072 while (actlen > 0) { 1073 n = min(actlen, sce->limit - sce->fill); 1074 memcpy(sce->fill, buf, n); 1075 1076 buf += n; 1077 actlen -= n; 1078 sce->fill += n; 1079 if(sce->fill == sce->limit) 1080 sce->fill = sce->ibuf; 1081 } 1082 1083 /* setup size for next transfer */ 1084 req->sizes[i] = isize; 1085 } 1086 1087 usbd_setup_isoc_xfer(xfer, sce->pipeh, req, req->sizes, UGEN_NISORFRMS, 1088 USBD_NO_COPY, ugen_isoc_rintr); 1089 (void)usbd_transfer(xfer); 1090 1091 if (sce->state & UGEN_ASLP) { 1092 sce->state &= ~UGEN_ASLP; 1093 DPRINTFN(5, ("ugen_isoc_rintr: waking %p\n", sce)); 1094 wakeup(sce); 1095 } 1096 selwakeuppri(&sce->rsel, PZERO); 1097 } 1098 1099 static usbd_status 1100 ugen_set_interface(struct ugen_softc *sc, int ifaceidx, int altno) 1101 { 1102 usbd_interface_handle iface; 1103 usb_endpoint_descriptor_t *ed; 1104 usbd_status err; 1105 struct ugen_endpoint *sce, **sce_cache; 1106 u_int8_t niface, nendpt, nendpt_cache, endptno, endpt; 1107 int dir; 1108 1109 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); 1110 1111 err = usbd_interface_count(sc->sc_udev, &niface); 1112 if (err) 1113 return (err); 1114 if (ifaceidx < 0 || ifaceidx >= niface) 1115 return (USBD_INVAL); 1116 1117 err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 1118 if (err) 1119 return (err); 1120 err = usbd_endpoint_count(iface, &nendpt); 1121 if (err) 1122 return (err); 1123 1124 /* store an array of endpoint descriptors to clear if the interface 1125 * change succeeds - these aren't available afterwards */ 1126 sce_cache = malloc(sizeof(struct ugen_endpoint *) * nendpt, M_TEMP, 1127 M_WAITOK); 1128 nendpt_cache = nendpt; 1129 1130 for (endptno = 0; endptno < nendpt; endptno++) { 1131 ed = usbd_interface2endpoint_descriptor(iface,endptno); 1132 endpt = ed->bEndpointAddress; 1133 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 1134 sce_cache[endptno] = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 1135 } 1136 1137 /* change setting */ 1138 err = usbd_set_interface(iface, altno); 1139 if (err) { 1140 free(sce_cache, M_TEMP); 1141 return (err); 1142 } 1143 err = usbd_endpoint_count(iface, &nendpt); 1144 if (err) 1145 panic("ugen_set_interface: endpoint count failed"); 1146 1147 /* destroy the existing devices, we remake the new ones in a moment */ 1148 ugen_destroy_devnodes(sc); 1149 1150 /* now we can clear the old interface's ugen_endpoints */ 1151 for (endptno = 0; endptno < nendpt_cache; endptno++) { 1152 sce = sce_cache[endptno]; 1153 sce->sc = 0; 1154 sce->edesc = 0; 1155 sce->iface = 0; 1156 } 1157 free(sce_cache, M_TEMP); 1158 1159 /* set the new interface's ugen_endpoints */ 1160 for (endptno = 0; endptno < nendpt; endptno++) { 1161 ed = usbd_interface2endpoint_descriptor(iface,endptno); 1162 endpt = ed->bEndpointAddress; 1163 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 1164 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 1165 sce->sc = sc; 1166 sce->edesc = ed; 1167 sce->iface = iface; 1168 } 1169 1170 /* make the new devices */ 1171 ugen_make_devnodes(sc); 1172 1173 return (0); 1174 } 1175 1176 /* Retrieve a complete descriptor for a certain device and index. */ 1177 static usb_config_descriptor_t * 1178 ugen_get_cdesc(struct ugen_softc *sc, int index, int *lenp) 1179 { 1180 usb_config_descriptor_t *cdesc, *tdesc, cdescr; 1181 int len; 1182 usbd_status err; 1183 1184 if (index == USB_CURRENT_CONFIG_INDEX) { 1185 tdesc = usbd_get_config_descriptor(sc->sc_udev); 1186 len = UGETW(tdesc->wTotalLength); 1187 if (lenp) 1188 *lenp = len; 1189 cdesc = malloc(len, M_TEMP, M_WAITOK); 1190 memcpy(cdesc, tdesc, len); 1191 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); 1192 } else { 1193 err = usbd_get_config_desc(sc->sc_udev, index, &cdescr); 1194 if (err) 1195 return (0); 1196 len = UGETW(cdescr.wTotalLength); 1197 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); 1198 if (lenp) 1199 *lenp = len; 1200 cdesc = malloc(len, M_TEMP, M_WAITOK); 1201 err = usbd_get_config_desc_full(sc->sc_udev, index, cdesc, len); 1202 if (err) { 1203 free(cdesc, M_TEMP); 1204 return (0); 1205 } 1206 } 1207 return (cdesc); 1208 } 1209 1210 static int 1211 ugen_get_alt_index(struct ugen_softc *sc, int ifaceidx) 1212 { 1213 usbd_interface_handle iface; 1214 usbd_status err; 1215 1216 err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 1217 if (err) 1218 return (-1); 1219 return (usbd_get_interface_altindex(iface)); 1220 } 1221 1222 static int 1223 ugen_do_ioctl(struct ugen_softc *sc, int endpt, u_long cmd, 1224 caddr_t addr, int flag, struct thread *p) 1225 { 1226 struct ugen_endpoint *sce; 1227 usbd_status err; 1228 usbd_interface_handle iface; 1229 struct usb_config_desc *cd; 1230 usb_config_descriptor_t *cdesc; 1231 struct usb_interface_desc *id; 1232 usb_interface_descriptor_t *idesc; 1233 struct usb_endpoint_desc *ed; 1234 usb_endpoint_descriptor_t *edesc; 1235 struct usb_alt_interface *ai; 1236 struct usb_string_desc *si; 1237 u_int8_t conf, alt; 1238 1239 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 1240 if (sc->sc_dying) 1241 return (EIO); 1242 1243 switch (cmd) { 1244 case FIONBIO: 1245 case FIOASYNC: 1246 /* All handled in the upper FS layer. */ 1247 return (0); 1248 case USB_SET_SHORT_XFER: 1249 if (endpt == USB_CONTROL_ENDPOINT) 1250 return (EINVAL); 1251 /* This flag only affects read */ 1252 sce = &sc->sc_endpoints[endpt][IN]; 1253 1254 if (sce->pipeh == NULL) { 1255 printf("ugenioctl: USB_SET_SHORT_XFER, no pipe\n"); 1256 return (EIO); 1257 } 1258 1259 if (*(int *)addr) 1260 sce->state |= UGEN_SHORT_OK; 1261 else 1262 sce->state &= ~UGEN_SHORT_OK; 1263 return (0); 1264 case USB_SET_TIMEOUT: 1265 sce = &sc->sc_endpoints[endpt][IN]; 1266 sce->timeout = *(int *)addr; 1267 sce = &sc->sc_endpoints[endpt][OUT]; 1268 sce->timeout = *(int *)addr; 1269 return (0); 1270 default: 1271 break; 1272 } 1273 1274 if (endpt != USB_CONTROL_ENDPOINT) 1275 return (EINVAL); 1276 1277 switch (cmd) { 1278 #ifdef USB_DEBUG 1279 case USB_SETDEBUG: 1280 ugendebug = *(int *)addr; 1281 break; 1282 #endif 1283 case USB_GET_CONFIG: 1284 err = usbd_get_config(sc->sc_udev, &conf); 1285 if (err) 1286 return (EIO); 1287 *(int *)addr = conf; 1288 break; 1289 case USB_SET_CONFIG: 1290 if (!(flag & FWRITE)) 1291 return (EPERM); 1292 err = ugen_set_config(sc, *(int *)addr); 1293 switch (err) { 1294 case USBD_NORMAL_COMPLETION: 1295 ugen_make_devnodes(sc); 1296 break; 1297 case USBD_IN_USE: 1298 return (EBUSY); 1299 default: 1300 return (EIO); 1301 } 1302 break; 1303 case USB_GET_ALTINTERFACE: 1304 ai = (struct usb_alt_interface *)addr; 1305 err = usbd_device2interface_handle(sc->sc_udev, 1306 ai->uai_interface_index, &iface); 1307 if (err) 1308 return (EINVAL); 1309 idesc = usbd_get_interface_descriptor(iface); 1310 if (idesc == NULL) 1311 return (EIO); 1312 ai->uai_alt_no = idesc->bAlternateSetting; 1313 break; 1314 case USB_SET_ALTINTERFACE: 1315 if (!(flag & FWRITE)) 1316 return (EPERM); 1317 ai = (struct usb_alt_interface *)addr; 1318 err = usbd_device2interface_handle(sc->sc_udev, 1319 ai->uai_interface_index, &iface); 1320 if (err) 1321 return (EINVAL); 1322 err = ugen_set_interface(sc, ai->uai_interface_index, 1323 ai->uai_alt_no); 1324 if (err) 1325 return (EINVAL); 1326 break; 1327 case USB_GET_NO_ALT: 1328 ai = (struct usb_alt_interface *)addr; 1329 cdesc = ugen_get_cdesc(sc, ai->uai_config_index, 0); 1330 if (cdesc == NULL) 1331 return (EINVAL); 1332 idesc = usbd_find_idesc(cdesc, ai->uai_interface_index, 0); 1333 if (idesc == NULL) { 1334 free(cdesc, M_TEMP); 1335 return (EINVAL); 1336 } 1337 ai->uai_alt_no = usbd_get_no_alts(cdesc, 1338 idesc->bInterfaceNumber); 1339 free(cdesc, M_TEMP); 1340 break; 1341 case USB_GET_DEVICE_DESC: 1342 *(usb_device_descriptor_t *)addr = 1343 *usbd_get_device_descriptor(sc->sc_udev); 1344 break; 1345 case USB_GET_CONFIG_DESC: 1346 cd = (struct usb_config_desc *)addr; 1347 cdesc = ugen_get_cdesc(sc, cd->ucd_config_index, 0); 1348 if (cdesc == NULL) 1349 return (EINVAL); 1350 cd->ucd_desc = *cdesc; 1351 free(cdesc, M_TEMP); 1352 break; 1353 case USB_GET_INTERFACE_DESC: 1354 id = (struct usb_interface_desc *)addr; 1355 cdesc = ugen_get_cdesc(sc, id->uid_config_index, 0); 1356 if (cdesc == NULL) 1357 return (EINVAL); 1358 if (id->uid_config_index == USB_CURRENT_CONFIG_INDEX && 1359 id->uid_alt_index == USB_CURRENT_ALT_INDEX) 1360 alt = ugen_get_alt_index(sc, id->uid_interface_index); 1361 else 1362 alt = id->uid_alt_index; 1363 idesc = usbd_find_idesc(cdesc, id->uid_interface_index, alt); 1364 if (idesc == NULL) { 1365 free(cdesc, M_TEMP); 1366 return (EINVAL); 1367 } 1368 id->uid_desc = *idesc; 1369 free(cdesc, M_TEMP); 1370 break; 1371 case USB_GET_ENDPOINT_DESC: 1372 ed = (struct usb_endpoint_desc *)addr; 1373 cdesc = ugen_get_cdesc(sc, ed->ued_config_index, 0); 1374 if (cdesc == NULL) 1375 return (EINVAL); 1376 if (ed->ued_config_index == USB_CURRENT_CONFIG_INDEX && 1377 ed->ued_alt_index == USB_CURRENT_ALT_INDEX) 1378 alt = ugen_get_alt_index(sc, ed->ued_interface_index); 1379 else 1380 alt = ed->ued_alt_index; 1381 edesc = usbd_find_edesc(cdesc, ed->ued_interface_index, 1382 alt, ed->ued_endpoint_index); 1383 if (edesc == NULL) { 1384 free(cdesc, M_TEMP); 1385 return (EINVAL); 1386 } 1387 ed->ued_desc = *edesc; 1388 free(cdesc, M_TEMP); 1389 break; 1390 case USB_GET_FULL_DESC: 1391 { 1392 int len; 1393 struct iovec iov; 1394 struct uio uio; 1395 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 1396 int error; 1397 1398 cdesc = ugen_get_cdesc(sc, fd->ufd_config_index, &len); 1399 if (len > fd->ufd_size) 1400 len = fd->ufd_size; 1401 iov.iov_base = (caddr_t)fd->ufd_data; 1402 iov.iov_len = len; 1403 uio.uio_iov = &iov; 1404 uio.uio_iovcnt = 1; 1405 uio.uio_resid = len; 1406 uio.uio_offset = 0; 1407 uio.uio_segflg = UIO_USERSPACE; 1408 uio.uio_rw = UIO_READ; 1409 uio.uio_td = p; 1410 error = uiomove((void *)cdesc, len, &uio); 1411 free(cdesc, M_TEMP); 1412 return (error); 1413 } 1414 case USB_GET_STRING_DESC: { 1415 int len; 1416 si = (struct usb_string_desc *)addr; 1417 err = usbd_get_string_desc(sc->sc_udev, si->usd_string_index, 1418 si->usd_language_id, &si->usd_desc, &len); 1419 if (err) 1420 return (EINVAL); 1421 break; 1422 } 1423 case USB_DO_REQUEST: 1424 { 1425 struct usb_ctl_request *ur = (void *)addr; 1426 int len = UGETW(ur->ucr_request.wLength); 1427 struct iovec iov; 1428 struct uio uio; 1429 void *ptr = 0; 1430 int error = 0; 1431 1432 if (!(flag & FWRITE)) 1433 return (EPERM); 1434 /* Avoid requests that would damage the bus integrity. */ 1435 if ((ur->ucr_request.bmRequestType == UT_WRITE_DEVICE && 1436 ur->ucr_request.bRequest == UR_SET_ADDRESS) || 1437 (ur->ucr_request.bmRequestType == UT_WRITE_DEVICE && 1438 ur->ucr_request.bRequest == UR_SET_CONFIG) || 1439 (ur->ucr_request.bmRequestType == UT_WRITE_INTERFACE && 1440 ur->ucr_request.bRequest == UR_SET_INTERFACE)) 1441 return (EINVAL); 1442 1443 if (len < 0 || len > 32767) 1444 return (EINVAL); 1445 if (len != 0) { 1446 iov.iov_base = (caddr_t)ur->ucr_data; 1447 iov.iov_len = len; 1448 uio.uio_iov = &iov; 1449 uio.uio_iovcnt = 1; 1450 uio.uio_resid = len; 1451 uio.uio_offset = 0; 1452 uio.uio_segflg = UIO_USERSPACE; 1453 uio.uio_rw = 1454 ur->ucr_request.bmRequestType & UT_READ ? 1455 UIO_READ : UIO_WRITE; 1456 uio.uio_td = p; 1457 ptr = malloc(len, M_TEMP, M_WAITOK); 1458 if (uio.uio_rw == UIO_WRITE) { 1459 error = uiomove(ptr, len, &uio); 1460 if (error) 1461 goto ret; 1462 } 1463 } 1464 sce = &sc->sc_endpoints[endpt][IN]; 1465 err = usbd_do_request_flags(sc->sc_udev, &ur->ucr_request, 1466 ptr, ur->ucr_flags, &ur->ucr_actlen, sce->timeout); 1467 if (err) { 1468 error = EIO; 1469 goto ret; 1470 } 1471 if (len != 0) { 1472 if (uio.uio_rw == UIO_READ) { 1473 error = uiomove(ptr, len, &uio); 1474 if (error) 1475 goto ret; 1476 } 1477 } 1478 ret: 1479 if (ptr) 1480 free(ptr, M_TEMP); 1481 return (error); 1482 } 1483 case USB_GET_DEVICEINFO: 1484 usbd_fill_deviceinfo(sc->sc_udev, 1485 (struct usb_device_info *)addr, 1); 1486 break; 1487 case USB_RESET_DEVICE: 1488 err = usbd_reset_device(sc->sc_udev); 1489 if (err) 1490 return EIO; 1491 break; 1492 default: 1493 return (EINVAL); 1494 } 1495 return (0); 1496 } 1497 1498 int 1499 ugenioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 1500 struct thread *p) 1501 { 1502 int endpt = UGENENDPOINT(dev); 1503 struct ugen_softc *sc; 1504 int error; 1505 1506 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev)); 1507 1508 if (sc->sc_dying) 1509 return (EIO); 1510 1511 UGEN_DEV_REF(dev, sc); 1512 error = ugen_do_ioctl(sc, endpt, cmd, addr, flag, p); 1513 UGEN_DEV_RELE(dev, sc); 1514 return (error); 1515 } 1516 1517 int 1518 ugenpoll(struct cdev *dev, int events, struct thread *p) 1519 { 1520 struct ugen_softc *sc; 1521 struct ugen_endpoint *sce_in, *sce_out; 1522 usb_endpoint_descriptor_t *edesc; 1523 int revents = 0; 1524 int s; 1525 1526 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev)); 1527 1528 if (sc->sc_dying) 1529 return ((events & (POLLIN | POLLOUT | POLLRDNORM | 1530 POLLWRNORM)) | POLLHUP); 1531 /* Do not allow to poll a control endpoint */ 1532 if (UGENENDPOINT(dev) == USB_CONTROL_ENDPOINT) 1533 return (events & (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM)); 1534 1535 sce_in = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 1536 sce_out = &sc->sc_endpoints[UGENENDPOINT(dev)][OUT]; 1537 edesc = (sce_in->edesc != NULL) ? sce_in->edesc : sce_out->edesc; 1538 KASSERT(edesc != NULL, ("ugenpoll: NULL edesc")); 1539 if (sce_in->edesc == NULL || sce_in->pipeh == NULL) 1540 sce_in = NULL; 1541 if (sce_out->edesc == NULL || sce_out->pipeh == NULL) 1542 sce_out = NULL; 1543 1544 s = splusb(); 1545 switch (edesc->bmAttributes & UE_XFERTYPE) { 1546 case UE_INTERRUPT: 1547 if (sce_in != NULL && (events & (POLLIN | POLLRDNORM))) { 1548 if (sce_in->q.c_cc > 0) 1549 revents |= events & (POLLIN | POLLRDNORM); 1550 else 1551 selrecord(p, &sce_in->rsel); 1552 } 1553 if (sce_out != NULL && (events & (POLLOUT | POLLWRNORM))) { 1554 if (sce_out->q.c_cc > 0) 1555 revents |= events & (POLLOUT | POLLWRNORM); 1556 else 1557 selrecord(p, &sce_out->rsel); 1558 } 1559 break; 1560 case UE_ISOCHRONOUS: 1561 if (sce_in != NULL && (events & (POLLIN | POLLRDNORM))) { 1562 if (sce_in->cur != sce_in->fill) 1563 revents |= events & (POLLIN | POLLRDNORM); 1564 else 1565 selrecord(p, &sce_in->rsel); 1566 } 1567 if (sce_out != NULL && (events & (POLLOUT | POLLWRNORM))) { 1568 if (sce_out->cur != sce_out->fill) 1569 revents |= events & (POLLOUT | POLLWRNORM); 1570 else 1571 selrecord(p, &sce_out->rsel); 1572 } 1573 break; 1574 case UE_BULK: 1575 /* 1576 * We have no easy way of determining if a read will 1577 * yield any data or a write will happen. 1578 * Pretend they will. 1579 */ 1580 revents |= events & 1581 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 1582 break; 1583 default: 1584 break; 1585 } 1586 splx(s); 1587 return (revents); 1588 } 1589 1590 DRIVER_MODULE(ugen, uhub, ugen_driver, ugen_devclass, usbd_driver_load, 0);
Cache object: 9f9c4f7b42514a1c791cad8f85fb0119
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