umodem_common.c revision 1.1
1 /* $NetBSD: umodem_common.c,v 1.1 2005/04/15 14:14:09 itohy 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 1.1 2005/04/15 14:14:09 itohy 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 #define UMODEMIBUFSIZE 64 95 #define UMODEMOBUFSIZE 256 96 97 Static usbd_status umodem_set_comm_feature(struct umodem_softc *sc, 98 int feature, int state); 99 Static usbd_status umodem_set_line_coding(struct umodem_softc *sc, 100 usb_cdc_line_state_t *state); 101 102 Static void umodem_dtr(struct umodem_softc *, int); 103 Static void umodem_rts(struct umodem_softc *, int); 104 Static void umodem_break(struct umodem_softc *, int); 105 Static void umodem_set_line_state(struct umodem_softc *); 106 Static void umodem_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 107 108 int 109 umodem_common_attach(device_ptr_t self, struct umodem_softc *sc, 110 struct usb_attach_arg *uaa, struct ucom_attach_args *uca) 111 { 112 usbd_device_handle dev = uaa->device; 113 usb_interface_descriptor_t *id; 114 usb_endpoint_descriptor_t *ed; 115 const usb_cdc_cm_descriptor_t *cmd; 116 char devinfo[1024]; 117 usbd_status err; 118 int data_ifcno; 119 int i; 120 121 usbd_devinfo(uaa->device, 0, devinfo, sizeof(devinfo)); 122 USB_ATTACH_SETUP; 123 124 sc->sc_udev = dev; 125 sc->sc_ctl_iface = uaa->iface; 126 127 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 128 printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev), 129 devinfo, id->bInterfaceClass, id->bInterfaceSubClass); 130 sc->sc_ctl_iface_no = id->bInterfaceNumber; 131 132 umodem_get_caps(dev, &sc->sc_cm_cap, &sc->sc_acm_cap, id); 133 134 /* Get the data interface no. */ 135 cmd = (usb_cdc_cm_descriptor_t *)usb_find_desc_if(dev, 136 UDESC_CS_INTERFACE, 137 UDESCSUB_CDC_CM, id); 138 if (cmd == NULL) { 139 printf("%s: no CM descriptor\n", USBDEVNAME(sc->sc_dev)); 140 goto bad; 141 } 142 sc->sc_data_iface_no = data_ifcno = cmd->bDataInterface; 143 144 printf("%s: data interface %d, has %sCM over data, has %sbreak\n", 145 USBDEVNAME(sc->sc_dev), data_ifcno, 146 sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ", 147 sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no "); 148 149 /* Get the data interface too. */ 150 for (i = 0; i < uaa->nifaces; i++) { 151 if (uaa->ifaces[i] != NULL) { 152 id = usbd_get_interface_descriptor(uaa->ifaces[i]); 153 if (id != NULL && id->bInterfaceNumber == data_ifcno) { 154 sc->sc_data_iface = uaa->ifaces[i]; 155 uaa->ifaces[i] = NULL; 156 } 157 } 158 } 159 if (sc->sc_data_iface == NULL) { 160 printf("%s: no data interface\n", USBDEVNAME(sc->sc_dev)); 161 goto bad; 162 } 163 164 /* 165 * Find the bulk endpoints. 166 * Iterate over all endpoints in the data interface and take note. 167 */ 168 uca->bulkin = uca->bulkout = -1; 169 170 id = usbd_get_interface_descriptor(sc->sc_data_iface); 171 for (i = 0; i < id->bNumEndpoints; i++) { 172 ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i); 173 if (ed == NULL) { 174 printf("%s: no endpoint descriptor for %d\n", 175 USBDEVNAME(sc->sc_dev), i); 176 goto bad; 177 } 178 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 179 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 180 uca->bulkin = ed->bEndpointAddress; 181 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 182 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 183 uca->bulkout = ed->bEndpointAddress; 184 } 185 } 186 187 if (uca->bulkin == -1) { 188 printf("%s: Could not find data bulk in\n", 189 USBDEVNAME(sc->sc_dev)); 190 goto bad; 191 } 192 if (uca->bulkout == -1) { 193 printf("%s: Could not find data bulk out\n", 194 USBDEVNAME(sc->sc_dev)); 195 goto bad; 196 } 197 198 if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) { 199 sc->sc_cm_over_data = 1; 200 } else { 201 if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) { 202 if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE) 203 err = umodem_set_comm_feature(sc, 204 UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED); 205 else 206 err = 0; 207 if (err) { 208 printf("%s: could not set data multiplex mode\n", 209 USBDEVNAME(sc->sc_dev)); 210 goto bad; 211 } 212 sc->sc_cm_over_data = 1; 213 } 214 } 215 216 /* 217 * The standard allows for notification messages (to indicate things 218 * like a modem hangup) to come in via an interrupt endpoint 219 * off of the control interface. Iterate over the endpoints on 220 * the control interface and see if there are any interrupt 221 * endpoints; if there are, then register it. 222 */ 223 224 sc->sc_ctl_notify = -1; 225 sc->sc_notify_pipe = NULL; 226 227 for (i = 0; i < id->bNumEndpoints; i++) { 228 ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i); 229 if (ed == NULL) 230 continue; 231 232 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 233 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 234 printf("%s: status change notification available\n", 235 USBDEVNAME(sc->sc_dev)); 236 sc->sc_ctl_notify = ed->bEndpointAddress; 237 } 238 } 239 240 sc->sc_dtr = -1; 241 242 /* bulkin, bulkout set above */ 243 uca->ibufsize = UMODEMIBUFSIZE; 244 uca->obufsize = UMODEMOBUFSIZE; 245 uca->ibufsizepad = UMODEMIBUFSIZE; 246 uca->opkthdrlen = 0; 247 uca->device = sc->sc_udev; 248 uca->iface = sc->sc_data_iface; 249 uca->arg = sc; 250 251 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 252 USBDEV(sc->sc_dev)); 253 254 DPRINTF(("umodem_common_attach: sc=%p\n", sc)); 255 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, uca, 256 ucomprint, ucomsubmatch); 257 258 return 0; 259 260 bad: 261 sc->sc_dying = 1; 262 return 1; 263 } 264 265 int 266 umodem_open(void *addr, int portno) 267 { 268 struct umodem_softc *sc = addr; 269 int err; 270 271 DPRINTF(("umodem_open: sc=%p\n", sc)); 272 273 if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) { 274 err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify, 275 USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc, 276 &sc->sc_notify_buf, sizeof(sc->sc_notify_buf), 277 umodem_intr, USBD_DEFAULT_INTERVAL); 278 279 if (err) { 280 DPRINTF(("Failed to establish notify pipe: %s\n", 281 usbd_errstr(err))); 282 return EIO; 283 } 284 } 285 286 return 0; 287 } 288 289 void 290 umodem_close(void *addr, int portno) 291 { 292 struct umodem_softc *sc = addr; 293 int err; 294 295 DPRINTF(("umodem_close: sc=%p\n", sc)); 296 297 if (sc->sc_notify_pipe != NULL) { 298 err = usbd_abort_pipe(sc->sc_notify_pipe); 299 if (err) 300 printf("%s: abort notify pipe failed: %s\n", 301 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 302 err = usbd_close_pipe(sc->sc_notify_pipe); 303 if (err) 304 printf("%s: close notify pipe failed: %s\n", 305 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 306 sc->sc_notify_pipe = NULL; 307 } 308 } 309 310 Static void 311 umodem_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 312 { 313 struct umodem_softc *sc = priv; 314 u_char mstatus; 315 316 if (sc->sc_dying) 317 return; 318 319 if (status != USBD_NORMAL_COMPLETION) { 320 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 321 return; 322 printf("%s: abnormal status: %s\n", USBDEVNAME(sc->sc_dev), 323 usbd_errstr(status)); 324 return; 325 } 326 327 if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { 328 DPRINTF(("%s: unknown message type (%02x) on notify pipe\n", 329 USBDEVNAME(sc->sc_dev), 330 sc->sc_notify_buf.bmRequestType)); 331 return; 332 } 333 334 switch (sc->sc_notify_buf.bNotification) { 335 case UCDC_N_SERIAL_STATE: 336 /* 337 * Set the serial state in ucom driver based on 338 * the bits from the notify message 339 */ 340 if (UGETW(sc->sc_notify_buf.wLength) != 2) { 341 printf("%s: Invalid notification length! (%d)\n", 342 USBDEVNAME(sc->sc_dev), 343 UGETW(sc->sc_notify_buf.wLength)); 344 break; 345 } 346 DPRINTF(("%s: notify bytes = %02x%02x\n", 347 USBDEVNAME(sc->sc_dev), 348 sc->sc_notify_buf.data[0], 349 sc->sc_notify_buf.data[1])); 350 /* Currently, lsr is always zero. */ 351 sc->sc_lsr = sc->sc_msr = 0; 352 mstatus = sc->sc_notify_buf.data[0]; 353 354 if (ISSET(mstatus, UCDC_N_SERIAL_RI)) 355 sc->sc_msr |= UMSR_RI; 356 if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) 357 sc->sc_msr |= UMSR_DSR; 358 if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) 359 sc->sc_msr |= UMSR_DCD; 360 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 361 break; 362 default: 363 DPRINTF(("%s: unknown notify message: %02x\n", 364 USBDEVNAME(sc->sc_dev), 365 sc->sc_notify_buf.bNotification)); 366 break; 367 } 368 } 369 370 void 371 umodem_get_caps(usbd_device_handle dev, int *cm, int *acm, 372 usb_interface_descriptor_t *id) 373 { 374 const usb_cdc_cm_descriptor_t *cmd; 375 const usb_cdc_acm_descriptor_t *cad; 376 377 *cm = *acm = 0; 378 379 cmd = (usb_cdc_cm_descriptor_t *)usb_find_desc_if(dev, 380 UDESC_CS_INTERFACE, 381 UDESCSUB_CDC_CM, id); 382 if (cmd == NULL) { 383 DPRINTF(("umodem_get_desc: no CM desc\n")); 384 return; 385 } 386 *cm = cmd->bmCapabilities; 387 388 cad = (usb_cdc_acm_descriptor_t *)usb_find_desc_if(dev, 389 UDESC_CS_INTERFACE, 390 UDESCSUB_CDC_ACM, 391 id); 392 if (cad == NULL) { 393 DPRINTF(("umodem_get_desc: no ACM desc\n")); 394 return; 395 } 396 *acm = cad->bmCapabilities; 397 } 398 399 void 400 umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 401 { 402 struct umodem_softc *sc = addr; 403 404 DPRINTF(("umodem_get_status:\n")); 405 406 if (lsr != NULL) 407 *lsr = sc->sc_lsr; 408 if (msr != NULL) 409 *msr = sc->sc_msr; 410 } 411 412 int 413 umodem_param(void *addr, int portno, struct termios *t) 414 { 415 struct umodem_softc *sc = addr; 416 usbd_status err; 417 usb_cdc_line_state_t ls; 418 419 DPRINTF(("umodem_param: sc=%p\n", sc)); 420 421 USETDW(ls.dwDTERate, t->c_ospeed); 422 if (ISSET(t->c_cflag, CSTOPB)) 423 ls.bCharFormat = UCDC_STOP_BIT_2; 424 else 425 ls.bCharFormat = UCDC_STOP_BIT_1; 426 if (ISSET(t->c_cflag, PARENB)) { 427 if (ISSET(t->c_cflag, PARODD)) 428 ls.bParityType = UCDC_PARITY_ODD; 429 else 430 ls.bParityType = UCDC_PARITY_EVEN; 431 } else 432 ls.bParityType = UCDC_PARITY_NONE; 433 switch (ISSET(t->c_cflag, CSIZE)) { 434 case CS5: 435 ls.bDataBits = 5; 436 break; 437 case CS6: 438 ls.bDataBits = 6; 439 break; 440 case CS7: 441 ls.bDataBits = 7; 442 break; 443 case CS8: 444 ls.bDataBits = 8; 445 break; 446 } 447 448 err = umodem_set_line_coding(sc, &ls); 449 if (err) { 450 DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err))); 451 return (EPASSTHROUGH); 452 } 453 return (0); 454 } 455 456 int 457 umodem_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag, 458 usb_proc_ptr p) 459 { 460 struct umodem_softc *sc = addr; 461 int error = 0; 462 463 if (sc->sc_dying) 464 return (EIO); 465 466 DPRINTF(("umodemioctl: cmd=0x%08lx\n", cmd)); 467 468 switch (cmd) { 469 case USB_GET_CM_OVER_DATA: 470 *(int *)data = sc->sc_cm_over_data; 471 break; 472 473 case USB_SET_CM_OVER_DATA: 474 if (*(int *)data != sc->sc_cm_over_data) { 475 /* XXX change it */ 476 } 477 break; 478 479 default: 480 DPRINTF(("umodemioctl: unknown\n")); 481 error = EPASSTHROUGH; 482 break; 483 } 484 485 return (error); 486 } 487 488 void 489 umodem_dtr(struct umodem_softc *sc, int onoff) 490 { 491 DPRINTF(("umodem_modem: onoff=%d\n", onoff)); 492 493 if (sc->sc_dtr == onoff) 494 return; 495 sc->sc_dtr = onoff; 496 497 umodem_set_line_state(sc); 498 } 499 500 void 501 umodem_rts(struct umodem_softc *sc, int onoff) 502 { 503 DPRINTF(("umodem_modem: onoff=%d\n", onoff)); 504 505 if (sc->sc_rts == onoff) 506 return; 507 sc->sc_rts = onoff; 508 509 umodem_set_line_state(sc); 510 } 511 512 void 513 umodem_set_line_state(struct umodem_softc *sc) 514 { 515 usb_device_request_t req; 516 int ls; 517 518 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 519 (sc->sc_rts ? UCDC_LINE_RTS : 0); 520 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 521 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 522 USETW(req.wValue, ls); 523 USETW(req.wIndex, sc->sc_ctl_iface_no); 524 USETW(req.wLength, 0); 525 526 (void)usbd_do_request(sc->sc_udev, &req, 0); 527 528 } 529 530 void 531 umodem_break(struct umodem_softc *sc, int onoff) 532 { 533 usb_device_request_t req; 534 535 DPRINTF(("umodem_break: onoff=%d\n", onoff)); 536 537 if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) 538 return; 539 540 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 541 req.bRequest = UCDC_SEND_BREAK; 542 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 543 USETW(req.wIndex, sc->sc_ctl_iface_no); 544 USETW(req.wLength, 0); 545 546 (void)usbd_do_request(sc->sc_udev, &req, 0); 547 } 548 549 void 550 umodem_set(void *addr, int portno, int reg, int onoff) 551 { 552 struct umodem_softc *sc = addr; 553 554 switch (reg) { 555 case UCOM_SET_DTR: 556 umodem_dtr(sc, onoff); 557 break; 558 case UCOM_SET_RTS: 559 umodem_rts(sc, onoff); 560 break; 561 case UCOM_SET_BREAK: 562 umodem_break(sc, onoff); 563 break; 564 default: 565 break; 566 } 567 } 568 569 usbd_status 570 umodem_set_line_coding(struct umodem_softc *sc, usb_cdc_line_state_t *state) 571 { 572 usb_device_request_t req; 573 usbd_status err; 574 575 DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 576 UGETDW(state->dwDTERate), state->bCharFormat, 577 state->bParityType, state->bDataBits)); 578 579 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 580 DPRINTF(("umodem_set_line_coding: already set\n")); 581 return (USBD_NORMAL_COMPLETION); 582 } 583 584 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 585 req.bRequest = UCDC_SET_LINE_CODING; 586 USETW(req.wValue, 0); 587 USETW(req.wIndex, sc->sc_ctl_iface_no); 588 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 589 590 err = usbd_do_request(sc->sc_udev, &req, state); 591 if (err) { 592 DPRINTF(("umodem_set_line_coding: failed, err=%s\n", 593 usbd_errstr(err))); 594 return (err); 595 } 596 597 sc->sc_line_state = *state; 598 599 return (USBD_NORMAL_COMPLETION); 600 } 601 602 usbd_status 603 umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) 604 { 605 usb_device_request_t req; 606 usbd_status err; 607 usb_cdc_abstract_state_t ast; 608 609 DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature, 610 state)); 611 612 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 613 req.bRequest = UCDC_SET_COMM_FEATURE; 614 USETW(req.wValue, feature); 615 USETW(req.wIndex, sc->sc_ctl_iface_no); 616 USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); 617 USETW(ast.wState, state); 618 619 err = usbd_do_request(sc->sc_udev, &req, &ast); 620 if (err) { 621 DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n", 622 feature, usbd_errstr(err))); 623 return (err); 624 } 625 626 return (USBD_NORMAL_COMPLETION); 627 } 628 629 int 630 umodem_common_activate(struct umodem_softc *sc, enum devact act) 631 { 632 int rv = 0; 633 634 switch (act) { 635 case DVACT_ACTIVATE: 636 return (EOPNOTSUPP); 637 638 case DVACT_DEACTIVATE: 639 sc->sc_dying = 1; 640 if (sc->sc_subdev) 641 rv = config_deactivate(sc->sc_subdev); 642 break; 643 } 644 return (rv); 645 } 646 647 int 648 umodem_common_detach(struct umodem_softc *sc, int flags) 649 { 650 int rv = 0; 651 652 DPRINTF(("umodem_common_detach: sc=%p flags=%d\n", sc, flags)); 653 654 sc->sc_dying = 1; 655 656 if (sc->sc_subdev != NULL) 657 rv = config_detach(sc->sc_subdev, flags); 658 659 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 660 USBDEV(sc->sc_dev)); 661 662 return (rv); 663 } 664
Indexes created Mon Sep 29 21:09:56 GMT 2025