umodem_common.c revision 1.12
1 /* $NetBSD: umodem_common.c,v 1.12 2007/03/13 13:51:56 drochner 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 1.12 2007/03/13 13:51:56 drochner 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/ucomvar.h> 78 #include <dev/usb/umodemvar.h> 79 80 #ifdef UMODEM_DEBUG 81 #define DPRINTFN(n, x) if (umodemdebug > (n)) logprintf x 82 int umodemdebug = 0; 83 #else 84 #define DPRINTFN(n, x) 85 #endif 86 #define DPRINTF(x) DPRINTFN(0, x) 87 88 /* 89 * These are the maximum number of bytes transferred per frame. 90 * If some really high speed devices should use this driver they 91 * may need to be increased, but this is good enough for normal modems. 92 * 93 * Note: increased from 64/256, to better support EVDO wireless PPP. 94 * The sizes should not be increased further, or there 95 * will be problems with contiguous storage allocation. 96 */ 97 #define UMODEMIBUFSIZE 4096 98 #define UMODEMOBUFSIZE 4096 99 100 Static usbd_status umodem_set_comm_feature(struct umodem_softc *sc, 101 int feature, int state); 102 Static usbd_status umodem_set_line_coding(struct umodem_softc *sc, 103 usb_cdc_line_state_t *state); 104 105 Static void umodem_dtr(struct umodem_softc *, int); 106 Static void umodem_rts(struct umodem_softc *, int); 107 Static void umodem_break(struct umodem_softc *, int); 108 Static void umodem_set_line_state(struct umodem_softc *); 109 Static void umodem_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 110 111 int 112 umodem_common_attach(device_ptr_t self, struct umodem_softc *sc, 113 struct usbif_attach_arg *uaa, struct ucom_attach_args *uca) 114 { 115 usbd_device_handle dev = uaa->device; 116 usb_interface_descriptor_t *id; 117 usb_endpoint_descriptor_t *ed; 118 char *devinfop; 119 usbd_status err; 120 int data_ifcno; 121 int i; 122 123 devinfop = usbd_devinfo_alloc(uaa->device, 0); 124 USB_ATTACH_SETUP; 125 126 sc->sc_udev = dev; 127 sc->sc_ctl_iface = uaa->iface; 128 129 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 130 printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev), 131 devinfop, id->bInterfaceClass, id->bInterfaceSubClass); 132 usbd_devinfo_free(devinfop); 133 sc->sc_ctl_iface_no = id->bInterfaceNumber; 134 135 /* Get the data interface no. */ 136 sc->sc_data_iface_no = data_ifcno = 137 umodem_get_caps(dev, &sc->sc_cm_cap, &sc->sc_acm_cap, id); 138 139 if (data_ifcno == -1) { 140 printf("%s: no pointer to data interface\n", 141 USBDEVNAME(sc->sc_dev)); 142 goto bad; 143 } 144 145 printf("%s: data interface %d, has %sCM over data, has %sbreak\n", 146 USBDEVNAME(sc->sc_dev), data_ifcno, 147 sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ", 148 sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no "); 149 150 /* Get the data interface too. */ 151 for (i = 0; i < uaa->nifaces; i++) { 152 if (uaa->ifaces[i] != NULL) { 153 id = usbd_get_interface_descriptor(uaa->ifaces[i]); 154 if (id != NULL && id->bInterfaceNumber == data_ifcno) { 155 sc->sc_data_iface = uaa->ifaces[i]; 156 uaa->ifaces[i] = NULL; 157 } 158 } 159 } 160 if (sc->sc_data_iface == NULL) { 161 printf("%s: no data interface\n", USBDEVNAME(sc->sc_dev)); 162 goto bad; 163 } 164 165 /* 166 * Find the bulk endpoints. 167 * Iterate over all endpoints in the data interface and take note. 168 */ 169 uca->bulkin = uca->bulkout = -1; 170 171 id = usbd_get_interface_descriptor(sc->sc_data_iface); 172 for (i = 0; i < id->bNumEndpoints; i++) { 173 ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i); 174 if (ed == NULL) { 175 printf("%s: no endpoint descriptor for %d\n", 176 USBDEVNAME(sc->sc_dev), i); 177 goto bad; 178 } 179 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 180 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 181 uca->bulkin = ed->bEndpointAddress; 182 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 183 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 184 uca->bulkout = ed->bEndpointAddress; 185 } 186 } 187 188 if (uca->bulkin == -1) { 189 printf("%s: Could not find data bulk in\n", 190 USBDEVNAME(sc->sc_dev)); 191 goto bad; 192 } 193 if (uca->bulkout == -1) { 194 printf("%s: Could not find data bulk out\n", 195 USBDEVNAME(sc->sc_dev)); 196 goto bad; 197 } 198 199 if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) { 200 sc->sc_cm_over_data = 1; 201 } else { 202 if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) { 203 if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE) 204 err = umodem_set_comm_feature(sc, 205 UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED); 206 else 207 err = 0; 208 if (err) { 209 printf("%s: could not set data multiplex mode\n", 210 USBDEVNAME(sc->sc_dev)); 211 goto bad; 212 } 213 sc->sc_cm_over_data = 1; 214 } 215 } 216 217 /* 218 * The standard allows for notification messages (to indicate things 219 * like a modem hangup) to come in via an interrupt endpoint 220 * off of the control interface. Iterate over the endpoints on 221 * the control interface and see if there are any interrupt 222 * endpoints; if there are, then register it. 223 */ 224 225 sc->sc_ctl_notify = -1; 226 sc->sc_notify_pipe = NULL; 227 228 for (i = 0; i < id->bNumEndpoints; i++) { 229 ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i); 230 if (ed == NULL) 231 continue; 232 233 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 234 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 235 printf("%s: status change notification available\n", 236 USBDEVNAME(sc->sc_dev)); 237 sc->sc_ctl_notify = ed->bEndpointAddress; 238 } 239 } 240 241 sc->sc_dtr = -1; 242 243 /* bulkin, bulkout set above */ 244 uca->ibufsize = UMODEMIBUFSIZE; 245 uca->obufsize = UMODEMOBUFSIZE; 246 uca->ibufsizepad = UMODEMIBUFSIZE; 247 uca->opkthdrlen = 0; 248 uca->device = sc->sc_udev; 249 uca->iface = sc->sc_data_iface; 250 uca->arg = sc; 251 252 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 253 USBDEV(sc->sc_dev)); 254 255 DPRINTF(("umodem_common_attach: sc=%p\n", sc)); 256 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, uca, 257 ucomprint, ucomsubmatch); 258 259 return 0; 260 261 bad: 262 sc->sc_dying = 1; 263 return 1; 264 } 265 266 int 267 umodem_open(void *addr, int portno) 268 { 269 struct umodem_softc *sc = addr; 270 int err; 271 272 DPRINTF(("umodem_open: sc=%p\n", sc)); 273 274 if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) { 275 err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify, 276 USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc, 277 &sc->sc_notify_buf, sizeof(sc->sc_notify_buf), 278 umodem_intr, USBD_DEFAULT_INTERVAL); 279 280 if (err) { 281 DPRINTF(("Failed to establish notify pipe: %s\n", 282 usbd_errstr(err))); 283 return EIO; 284 } 285 } 286 287 return 0; 288 } 289 290 void 291 umodem_close(void *addr, int portno) 292 { 293 struct umodem_softc *sc = addr; 294 int err; 295 296 DPRINTF(("umodem_close: sc=%p\n", sc)); 297 298 if (sc->sc_notify_pipe != NULL) { 299 err = usbd_abort_pipe(sc->sc_notify_pipe); 300 if (err) 301 printf("%s: abort notify pipe failed: %s\n", 302 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 303 err = usbd_close_pipe(sc->sc_notify_pipe); 304 if (err) 305 printf("%s: close notify pipe failed: %s\n", 306 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 307 sc->sc_notify_pipe = NULL; 308 } 309 } 310 311 Static void 312 umodem_intr(usbd_xfer_handle xfer, usbd_private_handle priv, 313 usbd_status status) 314 { 315 struct umodem_softc *sc = priv; 316 u_char mstatus; 317 318 if (sc->sc_dying) 319 return; 320 321 if (status != USBD_NORMAL_COMPLETION) { 322 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 323 return; 324 printf("%s: abnormal status: %s\n", USBDEVNAME(sc->sc_dev), 325 usbd_errstr(status)); 326 return; 327 } 328 329 if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { 330 DPRINTF(("%s: unknown message type (%02x) on notify pipe\n", 331 USBDEVNAME(sc->sc_dev), 332 sc->sc_notify_buf.bmRequestType)); 333 return; 334 } 335 336 switch (sc->sc_notify_buf.bNotification) { 337 case UCDC_N_SERIAL_STATE: 338 /* 339 * Set the serial state in ucom driver based on 340 * the bits from the notify message 341 */ 342 if (UGETW(sc->sc_notify_buf.wLength) != 2) { 343 printf("%s: Invalid notification length! (%d)\n", 344 USBDEVNAME(sc->sc_dev), 345 UGETW(sc->sc_notify_buf.wLength)); 346 break; 347 } 348 DPRINTF(("%s: notify bytes = %02x%02x\n", 349 USBDEVNAME(sc->sc_dev), 350 sc->sc_notify_buf.data[0], 351 sc->sc_notify_buf.data[1])); 352 /* Currently, lsr is always zero. */ 353 sc->sc_lsr = sc->sc_msr = 0; 354 mstatus = sc->sc_notify_buf.data[0]; 355 356 if (ISSET(mstatus, UCDC_N_SERIAL_RI)) 357 sc->sc_msr |= UMSR_RI; 358 if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) 359 sc->sc_msr |= UMSR_DSR; 360 if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) 361 sc->sc_msr |= UMSR_DCD; 362 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 363 break; 364 default: 365 DPRINTF(("%s: unknown notify message: %02x\n", 366 USBDEVNAME(sc->sc_dev), 367 sc->sc_notify_buf.bNotification)); 368 break; 369 } 370 } 371 372 int 373 umodem_get_caps(usbd_device_handle dev, int *cm, int *acm, 374 usb_interface_descriptor_t *id) 375 { 376 const usb_cdc_cm_descriptor_t *cmd; 377 const usb_cdc_acm_descriptor_t *cad; 378 const usb_cdc_union_descriptor_t *cud; 379 380 *cm = *acm = 0; 381 382 cmd = (const usb_cdc_cm_descriptor_t *)usb_find_desc_if(dev, 383 UDESC_CS_INTERFACE, 384 UDESCSUB_CDC_CM, id); 385 if (cmd == NULL) { 386 DPRINTF(("umodem_get_caps: no CM desc\n")); 387 } else { 388 *cm = cmd->bmCapabilities; 389 } 390 391 cad = (const usb_cdc_acm_descriptor_t *)usb_find_desc_if(dev, 392 UDESC_CS_INTERFACE, 393 UDESCSUB_CDC_ACM, 394 id); 395 if (cad == NULL) { 396 DPRINTF(("umodem_get_caps: no ACM desc\n")); 397 } else { 398 *acm = cad->bmCapabilities; 399 } 400 401 cud = (const usb_cdc_union_descriptor_t *)usb_find_desc_if(dev, 402 UDESC_CS_INTERFACE, 403 UDESCSUB_CDC_UNION, 404 id); 405 if (cud == NULL) { 406 DPRINTF(("umodem_get_caps: no UNION desc\n")); 407 } 408 409 return cmd ? cmd->bDataInterface : cud ? cud->bSlaveInterface[0] : -1; 410 } 411 412 void 413 umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 414 { 415 struct umodem_softc *sc = addr; 416 417 DPRINTF(("umodem_get_status:\n")); 418 419 if (lsr != NULL) 420 *lsr = sc->sc_lsr; 421 if (msr != NULL) 422 *msr = sc->sc_msr; 423 } 424 425 int 426 umodem_param(void *addr, int portno, struct termios *t) 427 { 428 struct umodem_softc *sc = addr; 429 usbd_status err; 430 usb_cdc_line_state_t ls; 431 432 DPRINTF(("umodem_param: sc=%p\n", sc)); 433 434 USETDW(ls.dwDTERate, t->c_ospeed); 435 if (ISSET(t->c_cflag, CSTOPB)) 436 ls.bCharFormat = UCDC_STOP_BIT_2; 437 else 438 ls.bCharFormat = UCDC_STOP_BIT_1; 439 if (ISSET(t->c_cflag, PARENB)) { 440 if (ISSET(t->c_cflag, PARODD)) 441 ls.bParityType = UCDC_PARITY_ODD; 442 else 443 ls.bParityType = UCDC_PARITY_EVEN; 444 } else 445 ls.bParityType = UCDC_PARITY_NONE; 446 switch (ISSET(t->c_cflag, CSIZE)) { 447 case CS5: 448 ls.bDataBits = 5; 449 break; 450 case CS6: 451 ls.bDataBits = 6; 452 break; 453 case CS7: 454 ls.bDataBits = 7; 455 break; 456 case CS8: 457 ls.bDataBits = 8; 458 break; 459 } 460 461 err = umodem_set_line_coding(sc, &ls); 462 if (err) { 463 DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err))); 464 return (EPASSTHROUGH); 465 } 466 return (0); 467 } 468 469 int 470 umodem_ioctl(void *addr, int portno, u_long cmd, void *data, 471 int flag, usb_proc_ptr p) 472 { 473 struct umodem_softc *sc = addr; 474 int error = 0; 475 476 if (sc->sc_dying) 477 return (EIO); 478 479 DPRINTF(("umodem_ioctl: cmd=0x%08lx\n", cmd)); 480 481 switch (cmd) { 482 case USB_GET_CM_OVER_DATA: 483 *(int *)data = sc->sc_cm_over_data; 484 break; 485 486 case USB_SET_CM_OVER_DATA: 487 if (*(int *)data != sc->sc_cm_over_data) { 488 /* XXX change it */ 489 } 490 break; 491 492 default: 493 DPRINTF(("umodem_ioctl: unknown\n")); 494 error = EPASSTHROUGH; 495 break; 496 } 497 498 return (error); 499 } 500 501 void 502 umodem_dtr(struct umodem_softc *sc, int onoff) 503 { 504 DPRINTF(("umodem_dtr: onoff=%d\n", onoff)); 505 506 if (sc->sc_dtr == onoff) 507 return; 508 sc->sc_dtr = onoff; 509 510 umodem_set_line_state(sc); 511 } 512 513 void 514 umodem_rts(struct umodem_softc *sc, int onoff) 515 { 516 DPRINTF(("umodem_rts: onoff=%d\n", onoff)); 517 518 if (sc->sc_rts == onoff) 519 return; 520 sc->sc_rts = onoff; 521 522 umodem_set_line_state(sc); 523 } 524 525 void 526 umodem_set_line_state(struct umodem_softc *sc) 527 { 528 usb_device_request_t req; 529 int ls; 530 531 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 532 (sc->sc_rts ? UCDC_LINE_RTS : 0); 533 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 534 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 535 USETW(req.wValue, ls); 536 USETW(req.wIndex, sc->sc_ctl_iface_no); 537 USETW(req.wLength, 0); 538 539 (void)usbd_do_request(sc->sc_udev, &req, 0); 540 541 } 542 543 void 544 umodem_break(struct umodem_softc *sc, int onoff) 545 { 546 usb_device_request_t req; 547 548 DPRINTF(("umodem_break: onoff=%d\n", onoff)); 549 550 if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) 551 return; 552 553 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 554 req.bRequest = UCDC_SEND_BREAK; 555 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 556 USETW(req.wIndex, sc->sc_ctl_iface_no); 557 USETW(req.wLength, 0); 558 559 (void)usbd_do_request(sc->sc_udev, &req, 0); 560 } 561 562 void 563 umodem_set(void *addr, int portno, int reg, int onoff) 564 { 565 struct umodem_softc *sc = addr; 566 567 switch (reg) { 568 case UCOM_SET_DTR: 569 umodem_dtr(sc, onoff); 570 break; 571 case UCOM_SET_RTS: 572 umodem_rts(sc, onoff); 573 break; 574 case UCOM_SET_BREAK: 575 umodem_break(sc, onoff); 576 break; 577 default: 578 break; 579 } 580 } 581 582 usbd_status 583 umodem_set_line_coding(struct umodem_softc *sc, usb_cdc_line_state_t *state) 584 { 585 usb_device_request_t req; 586 usbd_status err; 587 588 DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 589 UGETDW(state->dwDTERate), state->bCharFormat, 590 state->bParityType, state->bDataBits)); 591 592 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 593 DPRINTF(("umodem_set_line_coding: already set\n")); 594 return (USBD_NORMAL_COMPLETION); 595 } 596 597 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 598 req.bRequest = UCDC_SET_LINE_CODING; 599 USETW(req.wValue, 0); 600 USETW(req.wIndex, sc->sc_ctl_iface_no); 601 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 602 603 err = usbd_do_request(sc->sc_udev, &req, state); 604 if (err) { 605 DPRINTF(("umodem_set_line_coding: failed, err=%s\n", 606 usbd_errstr(err))); 607 return (err); 608 } 609 610 sc->sc_line_state = *state; 611 612 return (USBD_NORMAL_COMPLETION); 613 } 614 615 usbd_status 616 umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) 617 { 618 usb_device_request_t req; 619 usbd_status err; 620 usb_cdc_abstract_state_t ast; 621 622 DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature, 623 state)); 624 625 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 626 req.bRequest = UCDC_SET_COMM_FEATURE; 627 USETW(req.wValue, feature); 628 USETW(req.wIndex, sc->sc_ctl_iface_no); 629 USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); 630 USETW(ast.wState, state); 631 632 err = usbd_do_request(sc->sc_udev, &req, &ast); 633 if (err) { 634 DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n", 635 feature, usbd_errstr(err))); 636 return (err); 637 } 638 639 return (USBD_NORMAL_COMPLETION); 640 } 641 642 int 643 umodem_common_activate(struct umodem_softc *sc, enum devact act) 644 { 645 int rv = 0; 646 647 switch (act) { 648 case DVACT_ACTIVATE: 649 return (EOPNOTSUPP); 650 651 case DVACT_DEACTIVATE: 652 sc->sc_dying = 1; 653 if (sc->sc_subdev) 654 rv = config_deactivate(sc->sc_subdev); 655 break; 656 } 657 return (rv); 658 } 659 660 int 661 umodem_common_detach(struct umodem_softc *sc, int flags) 662 { 663 int rv = 0; 664 665 DPRINTF(("umodem_common_detach: sc=%p flags=%d\n", sc, flags)); 666 667 sc->sc_dying = 1; 668 669 if (sc->sc_subdev != NULL) 670 rv = config_detach(sc->sc_subdev, flags); 671 672 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 673 USBDEV(sc->sc_dev)); 674 675 return (rv); 676 } 677
Indexes created Wed Sep 24 05:09:52 GMT 2025