umodem_common.c revision 1.8
1 /* $NetBSD: umodem_common.c,v 1.8 2006/10/12 01:32:00 christos 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 (lennart (at) augustsson.net) 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 * Comm Class spec: http://www.usb.org/developers/devclass_docs/usbccs10.pdf 42 * http://www.usb.org/developers/devclass_docs/usbcdc11.pdf 43 */ 44 45 /* 46 * TODO: 47 * - Add error recovery in various places; the big problem is what 48 * to do in a callback if there is an error. 49 * - Implement a Call Device for modems without multiplexed commands. 50 * 51 */ 52 53 #include <sys/cdefs.h> 54 __KERNEL_RCSID(0, "$NetBSD: umodem_common.c,v 1.8 2006/10/12 01:32:00 christos Exp $"); 55 56 #include <sys/param.h> 57 #include <sys/systm.h> 58 #include <sys/kernel.h> 59 #include <sys/ioctl.h> 60 #include <sys/conf.h> 61 #include <sys/tty.h> 62 #include <sys/file.h> 63 #include <sys/select.h> 64 #include <sys/proc.h> 65 #include <sys/vnode.h> 66 #include <sys/device.h> 67 #include <sys/poll.h> 68 69 #include <dev/usb/usb.h> 70 #include <dev/usb/usbcdc.h> 71 72 #include <dev/usb/usbdi.h> 73 #include <dev/usb/usbdi_util.h> 74 #include <dev/usb/usbdevs.h> 75 #include <dev/usb/usb_quirks.h> 76 77 #include <dev/usb/usbdevs.h> 78 #include <dev/usb/ucomvar.h> 79 #include <dev/usb/umodemvar.h> 80 81 #ifdef UMODEM_DEBUG 82 #define DPRINTFN(n, x) if (umodemdebug > (n)) logprintf x 83 int umodemdebug = 0; 84 #else 85 #define DPRINTFN(n, x) 86 #endif 87 #define DPRINTF(x) DPRINTFN(0, x) 88 89 /* 90 * These are the maximum number of bytes transferred per frame. 91 * If some really high speed devices should use this driver they 92 * may need to be increased, but this is good enough for normal modems. 93 * 94 * Note: increased from 64/256, to better support EVDO wireless PPP. 95 * The sizes should not be increased further, or there 96 * will be problems with contiguous storage allocation. 97 */ 98 #define UMODEMIBUFSIZE 4096 99 #define UMODEMOBUFSIZE 4096 100 101 Static usbd_status umodem_set_comm_feature(struct umodem_softc *sc, 102 int feature, int state); 103 Static usbd_status umodem_set_line_coding(struct umodem_softc *sc, 104 usb_cdc_line_state_t *state); 105 106 Static void umodem_dtr(struct umodem_softc *, int); 107 Static void umodem_rts(struct umodem_softc *, int); 108 Static void umodem_break(struct umodem_softc *, int); 109 Static void umodem_set_line_state(struct umodem_softc *); 110 Static void umodem_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 111 112 int 113 umodem_common_attach(device_ptr_t self, struct umodem_softc *sc, 114 struct usb_attach_arg *uaa, struct ucom_attach_args *uca) 115 { 116 usbd_device_handle dev = uaa->device; 117 usb_interface_descriptor_t *id; 118 usb_endpoint_descriptor_t *ed; 119 char *devinfop; 120 usbd_status err; 121 int data_ifcno; 122 int i; 123 124 devinfop = usbd_devinfo_alloc(uaa->device, 0); 125 USB_ATTACH_SETUP; 126 127 sc->sc_udev = dev; 128 sc->sc_ctl_iface = uaa->iface; 129 130 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 131 printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev), 132 devinfop, id->bInterfaceClass, id->bInterfaceSubClass); 133 usbd_devinfo_free(devinfop); 134 sc->sc_ctl_iface_no = id->bInterfaceNumber; 135 136 /* Get the data interface no. */ 137 sc->sc_data_iface_no = data_ifcno = 138 umodem_get_caps(dev, &sc->sc_cm_cap, &sc->sc_acm_cap, id); 139 140 if (data_ifcno == -1) { 141 printf("%s: no pointer to data interface\n", 142 USBDEVNAME(sc->sc_dev)); 143 goto bad; 144 } 145 146 printf("%s: data interface %d, has %sCM over data, has %sbreak\n", 147 USBDEVNAME(sc->sc_dev), data_ifcno, 148 sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ", 149 sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no "); 150 151 /* Get the data interface too. */ 152 for (i = 0; i < uaa->nifaces; i++) { 153 if (uaa->ifaces[i] != NULL) { 154 id = usbd_get_interface_descriptor(uaa->ifaces[i]); 155 if (id != NULL && id->bInterfaceNumber == data_ifcno) { 156 sc->sc_data_iface = uaa->ifaces[i]; 157 uaa->ifaces[i] = NULL; 158 } 159 } 160 } 161 if (sc->sc_data_iface == NULL) { 162 printf("%s: no data interface\n", USBDEVNAME(sc->sc_dev)); 163 goto bad; 164 } 165 166 /* 167 * Find the bulk endpoints. 168 * Iterate over all endpoints in the data interface and take note. 169 */ 170 uca->bulkin = uca->bulkout = -1; 171 172 id = usbd_get_interface_descriptor(sc->sc_data_iface); 173 for (i = 0; i < id->bNumEndpoints; i++) { 174 ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i); 175 if (ed == NULL) { 176 printf("%s: no endpoint descriptor for %d\n", 177 USBDEVNAME(sc->sc_dev), i); 178 goto bad; 179 } 180 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 181 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 182 uca->bulkin = ed->bEndpointAddress; 183 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 184 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 185 uca->bulkout = ed->bEndpointAddress; 186 } 187 } 188 189 if (uca->bulkin == -1) { 190 printf("%s: Could not find data bulk in\n", 191 USBDEVNAME(sc->sc_dev)); 192 goto bad; 193 } 194 if (uca->bulkout == -1) { 195 printf("%s: Could not find data bulk out\n", 196 USBDEVNAME(sc->sc_dev)); 197 goto bad; 198 } 199 200 if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) { 201 sc->sc_cm_over_data = 1; 202 } else { 203 if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) { 204 if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE) 205 err = umodem_set_comm_feature(sc, 206 UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED); 207 else 208 err = 0; 209 if (err) { 210 printf("%s: could not set data multiplex mode\n", 211 USBDEVNAME(sc->sc_dev)); 212 goto bad; 213 } 214 sc->sc_cm_over_data = 1; 215 } 216 } 217 218 /* 219 * The standard allows for notification messages (to indicate things 220 * like a modem hangup) to come in via an interrupt endpoint 221 * off of the control interface. Iterate over the endpoints on 222 * the control interface and see if there are any interrupt 223 * endpoints; if there are, then register it. 224 */ 225 226 sc->sc_ctl_notify = -1; 227 sc->sc_notify_pipe = NULL; 228 229 for (i = 0; i < id->bNumEndpoints; i++) { 230 ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i); 231 if (ed == NULL) 232 continue; 233 234 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 235 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 236 printf("%s: status change notification available\n", 237 USBDEVNAME(sc->sc_dev)); 238 sc->sc_ctl_notify = ed->bEndpointAddress; 239 } 240 } 241 242 sc->sc_dtr = -1; 243 244 /* bulkin, bulkout set above */ 245 uca->ibufsize = UMODEMIBUFSIZE; 246 uca->obufsize = UMODEMOBUFSIZE; 247 uca->ibufsizepad = UMODEMIBUFSIZE; 248 uca->opkthdrlen = 0; 249 uca->device = sc->sc_udev; 250 uca->iface = sc->sc_data_iface; 251 uca->arg = sc; 252 253 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 254 USBDEV(sc->sc_dev)); 255 256 DPRINTF(("umodem_common_attach: sc=%p\n", sc)); 257 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, uca, 258 ucomprint, ucomsubmatch); 259 260 return 0; 261 262 bad: 263 sc->sc_dying = 1; 264 return 1; 265 } 266 267 int 268 umodem_open(void *addr, int portno __unused) 269 { 270 struct umodem_softc *sc = addr; 271 int err; 272 273 DPRINTF(("umodem_open: sc=%p\n", sc)); 274 275 if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) { 276 err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify, 277 USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc, 278 &sc->sc_notify_buf, sizeof(sc->sc_notify_buf), 279 umodem_intr, USBD_DEFAULT_INTERVAL); 280 281 if (err) { 282 DPRINTF(("Failed to establish notify pipe: %s\n", 283 usbd_errstr(err))); 284 return EIO; 285 } 286 } 287 288 return 0; 289 } 290 291 void 292 umodem_close(void *addr, int portno __unused) 293 { 294 struct umodem_softc *sc = addr; 295 int err; 296 297 DPRINTF(("umodem_close: sc=%p\n", sc)); 298 299 if (sc->sc_notify_pipe != NULL) { 300 err = usbd_abort_pipe(sc->sc_notify_pipe); 301 if (err) 302 printf("%s: abort notify pipe failed: %s\n", 303 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 304 err = usbd_close_pipe(sc->sc_notify_pipe); 305 if (err) 306 printf("%s: close notify pipe failed: %s\n", 307 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 308 sc->sc_notify_pipe = NULL; 309 } 310 } 311 312 Static void 313 umodem_intr(usbd_xfer_handle xfer __unused, usbd_private_handle priv, 314 usbd_status status) 315 { 316 struct umodem_softc *sc = priv; 317 u_char mstatus; 318 319 if (sc->sc_dying) 320 return; 321 322 if (status != USBD_NORMAL_COMPLETION) { 323 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 324 return; 325 printf("%s: abnormal status: %s\n", USBDEVNAME(sc->sc_dev), 326 usbd_errstr(status)); 327 return; 328 } 329 330 if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { 331 DPRINTF(("%s: unknown message type (%02x) on notify pipe\n", 332 USBDEVNAME(sc->sc_dev), 333 sc->sc_notify_buf.bmRequestType)); 334 return; 335 } 336 337 switch (sc->sc_notify_buf.bNotification) { 338 case UCDC_N_SERIAL_STATE: 339 /* 340 * Set the serial state in ucom driver based on 341 * the bits from the notify message 342 */ 343 if (UGETW(sc->sc_notify_buf.wLength) != 2) { 344 printf("%s: Invalid notification length! (%d)\n", 345 USBDEVNAME(sc->sc_dev), 346 UGETW(sc->sc_notify_buf.wLength)); 347 break; 348 } 349 DPRINTF(("%s: notify bytes = %02x%02x\n", 350 USBDEVNAME(sc->sc_dev), 351 sc->sc_notify_buf.data[0], 352 sc->sc_notify_buf.data[1])); 353 /* Currently, lsr is always zero. */ 354 sc->sc_lsr = sc->sc_msr = 0; 355 mstatus = sc->sc_notify_buf.data[0]; 356 357 if (ISSET(mstatus, UCDC_N_SERIAL_RI)) 358 sc->sc_msr |= UMSR_RI; 359 if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) 360 sc->sc_msr |= UMSR_DSR; 361 if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) 362 sc->sc_msr |= UMSR_DCD; 363 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 364 break; 365 default: 366 DPRINTF(("%s: unknown notify message: %02x\n", 367 USBDEVNAME(sc->sc_dev), 368 sc->sc_notify_buf.bNotification)); 369 break; 370 } 371 } 372 373 int 374 umodem_get_caps(usbd_device_handle dev, int *cm, int *acm, 375 usb_interface_descriptor_t *id) 376 { 377 const usb_cdc_cm_descriptor_t *cmd; 378 const usb_cdc_acm_descriptor_t *cad; 379 const usb_cdc_union_descriptor_t *cud; 380 381 *cm = *acm = 0; 382 383 cmd = (const usb_cdc_cm_descriptor_t *)usb_find_desc_if(dev, 384 UDESC_CS_INTERFACE, 385 UDESCSUB_CDC_CM, id); 386 if (cmd == NULL) { 387 DPRINTF(("umodem_get_caps: no CM desc\n")); 388 } else { 389 *cm = cmd->bmCapabilities; 390 } 391 392 cad = (const usb_cdc_acm_descriptor_t *)usb_find_desc_if(dev, 393 UDESC_CS_INTERFACE, 394 UDESCSUB_CDC_ACM, 395 id); 396 if (cad == NULL) { 397 DPRINTF(("umodem_get_caps: no ACM desc\n")); 398 } else { 399 *acm = cad->bmCapabilities; 400 } 401 402 cud = (const usb_cdc_union_descriptor_t *)usb_find_desc_if(dev, 403 UDESC_CS_INTERFACE, 404 UDESCSUB_CDC_UNION, 405 id); 406 if (cud == NULL) { 407 DPRINTF(("umodem_get_caps: no UNION desc\n")); 408 } 409 410 return cmd ? cmd->bDataInterface : cud ? cud->bSlaveInterface[0] : -1; 411 } 412 413 void 414 umodem_get_status(void *addr, int portno __unused, u_char *lsr, u_char *msr) 415 { 416 struct umodem_softc *sc = addr; 417 418 DPRINTF(("umodem_get_status:\n")); 419 420 if (lsr != NULL) 421 *lsr = sc->sc_lsr; 422 if (msr != NULL) 423 *msr = sc->sc_msr; 424 } 425 426 int 427 umodem_param(void *addr, int portno __unused, struct termios *t) 428 { 429 struct umodem_softc *sc = addr; 430 usbd_status err; 431 usb_cdc_line_state_t ls; 432 433 DPRINTF(("umodem_param: sc=%p\n", sc)); 434 435 USETDW(ls.dwDTERate, t->c_ospeed); 436 if (ISSET(t->c_cflag, CSTOPB)) 437 ls.bCharFormat = UCDC_STOP_BIT_2; 438 else 439 ls.bCharFormat = UCDC_STOP_BIT_1; 440 if (ISSET(t->c_cflag, PARENB)) { 441 if (ISSET(t->c_cflag, PARODD)) 442 ls.bParityType = UCDC_PARITY_ODD; 443 else 444 ls.bParityType = UCDC_PARITY_EVEN; 445 } else 446 ls.bParityType = UCDC_PARITY_NONE; 447 switch (ISSET(t->c_cflag, CSIZE)) { 448 case CS5: 449 ls.bDataBits = 5; 450 break; 451 case CS6: 452 ls.bDataBits = 6; 453 break; 454 case CS7: 455 ls.bDataBits = 7; 456 break; 457 case CS8: 458 ls.bDataBits = 8; 459 break; 460 } 461 462 err = umodem_set_line_coding(sc, &ls); 463 if (err) { 464 DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err))); 465 return (EPASSTHROUGH); 466 } 467 return (0); 468 } 469 470 int 471 umodem_ioctl(void *addr, int portno __unused, u_long cmd, caddr_t data, 472 int flag __unused, usb_proc_ptr p __unused) 473 { 474 struct umodem_softc *sc = addr; 475 int error = 0; 476 477 if (sc->sc_dying) 478 return (EIO); 479 480 DPRINTF(("umodem_ioctl: cmd=0x%08lx\n", cmd)); 481 482 switch (cmd) { 483 case USB_GET_CM_OVER_DATA: 484 *(int *)data = sc->sc_cm_over_data; 485 break; 486 487 case USB_SET_CM_OVER_DATA: 488 if (*(int *)data != sc->sc_cm_over_data) { 489 /* XXX change it */ 490 } 491 break; 492 493 default: 494 DPRINTF(("umodem_ioctl: unknown\n")); 495 error = EPASSTHROUGH; 496 break; 497 } 498 499 return (error); 500 } 501 502 void 503 umodem_dtr(struct umodem_softc *sc, int onoff) 504 { 505 DPRINTF(("umodem_dtr: onoff=%d\n", onoff)); 506 507 if (sc->sc_dtr == onoff) 508 return; 509 sc->sc_dtr = onoff; 510 511 umodem_set_line_state(sc); 512 } 513 514 void 515 umodem_rts(struct umodem_softc *sc, int onoff) 516 { 517 DPRINTF(("umodem_rts: onoff=%d\n", onoff)); 518 519 if (sc->sc_rts == onoff) 520 return; 521 sc->sc_rts = onoff; 522 523 umodem_set_line_state(sc); 524 } 525 526 void 527 umodem_set_line_state(struct umodem_softc *sc) 528 { 529 usb_device_request_t req; 530 int ls; 531 532 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 533 (sc->sc_rts ? UCDC_LINE_RTS : 0); 534 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 535 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 536 USETW(req.wValue, ls); 537 USETW(req.wIndex, sc->sc_ctl_iface_no); 538 USETW(req.wLength, 0); 539 540 (void)usbd_do_request(sc->sc_udev, &req, 0); 541 542 } 543 544 void 545 umodem_break(struct umodem_softc *sc, int onoff) 546 { 547 usb_device_request_t req; 548 549 DPRINTF(("umodem_break: onoff=%d\n", onoff)); 550 551 if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) 552 return; 553 554 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 555 req.bRequest = UCDC_SEND_BREAK; 556 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 557 USETW(req.wIndex, sc->sc_ctl_iface_no); 558 USETW(req.wLength, 0); 559 560 (void)usbd_do_request(sc->sc_udev, &req, 0); 561 } 562 563 void 564 umodem_set(void *addr, int portno __unused, int reg, int onoff) 565 { 566 struct umodem_softc *sc = addr; 567 568 switch (reg) { 569 case UCOM_SET_DTR: 570 umodem_dtr(sc, onoff); 571 break; 572 case UCOM_SET_RTS: 573 umodem_rts(sc, onoff); 574 break; 575 case UCOM_SET_BREAK: 576 umodem_break(sc, onoff); 577 break; 578 default: 579 break; 580 } 581 } 582 583 usbd_status 584 umodem_set_line_coding(struct umodem_softc *sc, usb_cdc_line_state_t *state) 585 { 586 usb_device_request_t req; 587 usbd_status err; 588 589 DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 590 UGETDW(state->dwDTERate), state->bCharFormat, 591 state->bParityType, state->bDataBits)); 592 593 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 594 DPRINTF(("umodem_set_line_coding: already set\n")); 595 return (USBD_NORMAL_COMPLETION); 596 } 597 598 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 599 req.bRequest = UCDC_SET_LINE_CODING; 600 USETW(req.wValue, 0); 601 USETW(req.wIndex, sc->sc_ctl_iface_no); 602 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 603 604 err = usbd_do_request(sc->sc_udev, &req, state); 605 if (err) { 606 DPRINTF(("umodem_set_line_coding: failed, err=%s\n", 607 usbd_errstr(err))); 608 return (err); 609 } 610 611 sc->sc_line_state = *state; 612 613 return (USBD_NORMAL_COMPLETION); 614 } 615 616 usbd_status 617 umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) 618 { 619 usb_device_request_t req; 620 usbd_status err; 621 usb_cdc_abstract_state_t ast; 622 623 DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature, 624 state)); 625 626 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 627 req.bRequest = UCDC_SET_COMM_FEATURE; 628 USETW(req.wValue, feature); 629 USETW(req.wIndex, sc->sc_ctl_iface_no); 630 USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); 631 USETW(ast.wState, state); 632 633 err = usbd_do_request(sc->sc_udev, &req, &ast); 634 if (err) { 635 DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n", 636 feature, usbd_errstr(err))); 637 return (err); 638 } 639 640 return (USBD_NORMAL_COMPLETION); 641 } 642 643 int 644 umodem_common_activate(struct umodem_softc *sc, enum devact act) 645 { 646 int rv = 0; 647 648 switch (act) { 649 case DVACT_ACTIVATE: 650 return (EOPNOTSUPP); 651 652 case DVACT_DEACTIVATE: 653 sc->sc_dying = 1; 654 if (sc->sc_subdev) 655 rv = config_deactivate(sc->sc_subdev); 656 break; 657 } 658 return (rv); 659 } 660 661 int 662 umodem_common_detach(struct umodem_softc *sc, int flags) 663 { 664 int rv = 0; 665 666 DPRINTF(("umodem_common_detach: sc=%p flags=%d\n", sc, flags)); 667 668 sc->sc_dying = 1; 669 670 if (sc->sc_subdev != NULL) 671 rv = config_detach(sc->sc_subdev, flags); 672 673 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 674 USBDEV(sc->sc_dev)); 675 676 return (rv); 677 } 678
Indexes created Fri Sep 26 20:09:58 GMT 2025