umodem_common.c revision 1.10.6.2
1 /* $NetBSD: umodem_common.c,v 1.10.6.2 2007/06/18 13:57:10 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 1.10.6.2 2007/06/18 13:57:10 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/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 #ifndef USB_USE_IFATTACH 114 struct usb_attach_arg *uaa, 115 #else 116 struct usbif_attach_arg *uaa, 117 #endif /* USB_USE_IFATTACH */ 118 struct ucom_attach_args *uca) 119 { 120 usbd_device_handle dev = uaa->device; 121 usb_interface_descriptor_t *id; 122 usb_endpoint_descriptor_t *ed; 123 char *devinfop; 124 usbd_status err; 125 int data_ifcno; 126 int i; 127 128 devinfop = usbd_devinfo_alloc(uaa->device, 0); 129 USB_ATTACH_SETUP; 130 131 sc->sc_udev = dev; 132 sc->sc_ctl_iface = uaa->iface; 133 134 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 135 printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev), 136 devinfop, id->bInterfaceClass, id->bInterfaceSubClass); 137 usbd_devinfo_free(devinfop); 138 sc->sc_ctl_iface_no = id->bInterfaceNumber; 139 140 /* Get the data interface no. */ 141 sc->sc_data_iface_no = data_ifcno = 142 umodem_get_caps(dev, &sc->sc_cm_cap, &sc->sc_acm_cap, id); 143 144 if (data_ifcno == -1) { 145 printf("%s: no pointer to data interface\n", 146 USBDEVNAME(sc->sc_dev)); 147 goto bad; 148 } 149 150 printf("%s: data interface %d, has %sCM over data, has %sbreak\n", 151 USBDEVNAME(sc->sc_dev), data_ifcno, 152 sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ", 153 sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no "); 154 155 /* Get the data interface too. */ 156 for (i = 0; i < uaa->nifaces; i++) { 157 if (uaa->ifaces[i] != NULL) { 158 id = usbd_get_interface_descriptor(uaa->ifaces[i]); 159 if (id != NULL && id->bInterfaceNumber == data_ifcno) { 160 sc->sc_data_iface = uaa->ifaces[i]; 161 uaa->ifaces[i] = NULL; 162 } 163 } 164 } 165 if (sc->sc_data_iface == NULL) { 166 printf("%s: no data interface\n", USBDEVNAME(sc->sc_dev)); 167 goto bad; 168 } 169 170 /* 171 * Find the bulk endpoints. 172 * Iterate over all endpoints in the data interface and take note. 173 */ 174 uca->bulkin = uca->bulkout = -1; 175 176 id = usbd_get_interface_descriptor(sc->sc_data_iface); 177 for (i = 0; i < id->bNumEndpoints; i++) { 178 ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i); 179 if (ed == NULL) { 180 printf("%s: no endpoint descriptor for %d\n", 181 USBDEVNAME(sc->sc_dev), i); 182 goto bad; 183 } 184 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 185 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 186 uca->bulkin = ed->bEndpointAddress; 187 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 188 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 189 uca->bulkout = ed->bEndpointAddress; 190 } 191 } 192 193 if (uca->bulkin == -1) { 194 printf("%s: Could not find data bulk in\n", 195 USBDEVNAME(sc->sc_dev)); 196 goto bad; 197 } 198 if (uca->bulkout == -1) { 199 printf("%s: Could not find data bulk out\n", 200 USBDEVNAME(sc->sc_dev)); 201 goto bad; 202 } 203 204 if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) { 205 sc->sc_cm_over_data = 1; 206 } else { 207 if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) { 208 if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE) 209 err = umodem_set_comm_feature(sc, 210 UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED); 211 else 212 err = 0; 213 if (err) { 214 printf("%s: could not set data multiplex mode\n", 215 USBDEVNAME(sc->sc_dev)); 216 goto bad; 217 } 218 sc->sc_cm_over_data = 1; 219 } 220 } 221 222 /* 223 * The standard allows for notification messages (to indicate things 224 * like a modem hangup) to come in via an interrupt endpoint 225 * off of the control interface. Iterate over the endpoints on 226 * the control interface and see if there are any interrupt 227 * endpoints; if there are, then register it. 228 */ 229 230 sc->sc_ctl_notify = -1; 231 sc->sc_notify_pipe = NULL; 232 233 for (i = 0; i < id->bNumEndpoints; i++) { 234 ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i); 235 if (ed == NULL) 236 continue; 237 238 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 239 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 240 printf("%s: status change notification available\n", 241 USBDEVNAME(sc->sc_dev)); 242 sc->sc_ctl_notify = ed->bEndpointAddress; 243 } 244 } 245 246 sc->sc_dtr = -1; 247 248 /* bulkin, bulkout set above */ 249 uca->ibufsize = UMODEMIBUFSIZE; 250 uca->obufsize = UMODEMOBUFSIZE; 251 uca->ibufsizepad = UMODEMIBUFSIZE; 252 uca->opkthdrlen = 0; 253 uca->device = sc->sc_udev; 254 uca->iface = sc->sc_data_iface; 255 uca->arg = sc; 256 257 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 258 USBDEV(sc->sc_dev)); 259 260 DPRINTF(("umodem_common_attach: sc=%p\n", sc)); 261 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, uca, 262 ucomprint, ucomsubmatch); 263 264 return 0; 265 266 bad: 267 sc->sc_dying = 1; 268 return 1; 269 } 270 271 int 272 umodem_open(void *addr, int portno) 273 { 274 struct umodem_softc *sc = addr; 275 int err; 276 277 DPRINTF(("umodem_open: sc=%p\n", sc)); 278 279 if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) { 280 err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify, 281 USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc, 282 &sc->sc_notify_buf, sizeof(sc->sc_notify_buf), 283 umodem_intr, USBD_DEFAULT_INTERVAL); 284 285 if (err) { 286 DPRINTF(("Failed to establish notify pipe: %s\n", 287 usbd_errstr(err))); 288 return EIO; 289 } 290 } 291 292 return 0; 293 } 294 295 void 296 umodem_close(void *addr, int portno) 297 { 298 struct umodem_softc *sc = addr; 299 int err; 300 301 DPRINTF(("umodem_close: sc=%p\n", sc)); 302 303 if (sc->sc_notify_pipe != NULL) { 304 err = usbd_abort_pipe(sc->sc_notify_pipe); 305 if (err) 306 printf("%s: abort notify pipe failed: %s\n", 307 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 308 err = usbd_close_pipe(sc->sc_notify_pipe); 309 if (err) 310 printf("%s: close notify pipe failed: %s\n", 311 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 312 sc->sc_notify_pipe = NULL; 313 } 314 } 315 316 Static void 317 umodem_intr(usbd_xfer_handle xfer, usbd_private_handle priv, 318 usbd_status status) 319 { 320 struct umodem_softc *sc = priv; 321 u_char mstatus; 322 323 if (sc->sc_dying) 324 return; 325 326 if (status != USBD_NORMAL_COMPLETION) { 327 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 328 return; 329 printf("%s: abnormal status: %s\n", USBDEVNAME(sc->sc_dev), 330 usbd_errstr(status)); 331 return; 332 } 333 334 if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { 335 DPRINTF(("%s: unknown message type (%02x) on notify pipe\n", 336 USBDEVNAME(sc->sc_dev), 337 sc->sc_notify_buf.bmRequestType)); 338 return; 339 } 340 341 switch (sc->sc_notify_buf.bNotification) { 342 case UCDC_N_SERIAL_STATE: 343 /* 344 * Set the serial state in ucom driver based on 345 * the bits from the notify message 346 */ 347 if (UGETW(sc->sc_notify_buf.wLength) != 2) { 348 printf("%s: Invalid notification length! (%d)\n", 349 USBDEVNAME(sc->sc_dev), 350 UGETW(sc->sc_notify_buf.wLength)); 351 break; 352 } 353 DPRINTF(("%s: notify bytes = %02x%02x\n", 354 USBDEVNAME(sc->sc_dev), 355 sc->sc_notify_buf.data[0], 356 sc->sc_notify_buf.data[1])); 357 /* Currently, lsr is always zero. */ 358 sc->sc_lsr = sc->sc_msr = 0; 359 mstatus = sc->sc_notify_buf.data[0]; 360 361 if (ISSET(mstatus, UCDC_N_SERIAL_RI)) 362 sc->sc_msr |= UMSR_RI; 363 if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) 364 sc->sc_msr |= UMSR_DSR; 365 if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) 366 sc->sc_msr |= UMSR_DCD; 367 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 368 break; 369 default: 370 DPRINTF(("%s: unknown notify message: %02x\n", 371 USBDEVNAME(sc->sc_dev), 372 sc->sc_notify_buf.bNotification)); 373 break; 374 } 375 } 376 377 int 378 umodem_get_caps(usbd_device_handle dev, int *cm, int *acm, 379 usb_interface_descriptor_t *id) 380 { 381 const usb_cdc_cm_descriptor_t *cmd; 382 const usb_cdc_acm_descriptor_t *cad; 383 const usb_cdc_union_descriptor_t *cud; 384 385 *cm = *acm = 0; 386 387 cmd = (const usb_cdc_cm_descriptor_t *)usb_find_desc_if(dev, 388 UDESC_CS_INTERFACE, 389 UDESCSUB_CDC_CM, id); 390 if (cmd == NULL) { 391 DPRINTF(("umodem_get_caps: no CM desc\n")); 392 } else { 393 *cm = cmd->bmCapabilities; 394 } 395 396 cad = (const usb_cdc_acm_descriptor_t *)usb_find_desc_if(dev, 397 UDESC_CS_INTERFACE, 398 UDESCSUB_CDC_ACM, 399 id); 400 if (cad == NULL) { 401 DPRINTF(("umodem_get_caps: no ACM desc\n")); 402 } else { 403 *acm = cad->bmCapabilities; 404 } 405 406 cud = (const usb_cdc_union_descriptor_t *)usb_find_desc_if(dev, 407 UDESC_CS_INTERFACE, 408 UDESCSUB_CDC_UNION, 409 id); 410 if (cud == NULL) { 411 DPRINTF(("umodem_get_caps: no UNION desc\n")); 412 } 413 414 return cmd ? cmd->bDataInterface : cud ? cud->bSlaveInterface[0] : -1; 415 } 416 417 void 418 umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 419 { 420 struct umodem_softc *sc = addr; 421 422 DPRINTF(("umodem_get_status:\n")); 423 424 if (lsr != NULL) 425 *lsr = sc->sc_lsr; 426 if (msr != NULL) 427 *msr = sc->sc_msr; 428 } 429 430 int 431 umodem_param(void *addr, int portno, struct termios *t) 432 { 433 struct umodem_softc *sc = addr; 434 usbd_status err; 435 usb_cdc_line_state_t ls; 436 437 DPRINTF(("umodem_param: sc=%p\n", sc)); 438 439 USETDW(ls.dwDTERate, t->c_ospeed); 440 if (ISSET(t->c_cflag, CSTOPB)) 441 ls.bCharFormat = UCDC_STOP_BIT_2; 442 else 443 ls.bCharFormat = UCDC_STOP_BIT_1; 444 if (ISSET(t->c_cflag, PARENB)) { 445 if (ISSET(t->c_cflag, PARODD)) 446 ls.bParityType = UCDC_PARITY_ODD; 447 else 448 ls.bParityType = UCDC_PARITY_EVEN; 449 } else 450 ls.bParityType = UCDC_PARITY_NONE; 451 switch (ISSET(t->c_cflag, CSIZE)) { 452 case CS5: 453 ls.bDataBits = 5; 454 break; 455 case CS6: 456 ls.bDataBits = 6; 457 break; 458 case CS7: 459 ls.bDataBits = 7; 460 break; 461 case CS8: 462 ls.bDataBits = 8; 463 break; 464 } 465 466 err = umodem_set_line_coding(sc, &ls); 467 if (err) { 468 DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err))); 469 return (EPASSTHROUGH); 470 } 471 return (0); 472 } 473 474 int 475 umodem_ioctl(void *addr, int portno, u_long cmd, usb_ioctlarg_t data, 476 int flag, usb_proc_ptr p) 477 { 478 struct umodem_softc *sc = addr; 479 int error = 0; 480 481 if (sc->sc_dying) 482 return (EIO); 483 484 DPRINTF(("umodem_ioctl: cmd=0x%08lx\n", cmd)); 485 486 switch (cmd) { 487 case USB_GET_CM_OVER_DATA: 488 *(int *)data = sc->sc_cm_over_data; 489 break; 490 491 case USB_SET_CM_OVER_DATA: 492 if (*(int *)data != sc->sc_cm_over_data) { 493 /* XXX change it */ 494 } 495 break; 496 497 default: 498 DPRINTF(("umodem_ioctl: unknown\n")); 499 error = EPASSTHROUGH; 500 break; 501 } 502 503 return (error); 504 } 505 506 void 507 umodem_dtr(struct umodem_softc *sc, int onoff) 508 { 509 DPRINTF(("umodem_dtr: onoff=%d\n", onoff)); 510 511 if (sc->sc_dtr == onoff) 512 return; 513 sc->sc_dtr = onoff; 514 515 umodem_set_line_state(sc); 516 } 517 518 void 519 umodem_rts(struct umodem_softc *sc, int onoff) 520 { 521 DPRINTF(("umodem_rts: onoff=%d\n", onoff)); 522 523 if (sc->sc_rts == onoff) 524 return; 525 sc->sc_rts = onoff; 526 527 umodem_set_line_state(sc); 528 } 529 530 void 531 umodem_set_line_state(struct umodem_softc *sc) 532 { 533 usb_device_request_t req; 534 int ls; 535 536 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 537 (sc->sc_rts ? UCDC_LINE_RTS : 0); 538 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 539 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 540 USETW(req.wValue, ls); 541 USETW(req.wIndex, sc->sc_ctl_iface_no); 542 USETW(req.wLength, 0); 543 544 (void)usbd_do_request(sc->sc_udev, &req, 0); 545 546 } 547 548 void 549 umodem_break(struct umodem_softc *sc, int onoff) 550 { 551 usb_device_request_t req; 552 553 DPRINTF(("umodem_break: onoff=%d\n", onoff)); 554 555 if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) 556 return; 557 558 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 559 req.bRequest = UCDC_SEND_BREAK; 560 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 561 USETW(req.wIndex, sc->sc_ctl_iface_no); 562 USETW(req.wLength, 0); 563 564 (void)usbd_do_request(sc->sc_udev, &req, 0); 565 } 566 567 void 568 umodem_set(void *addr, int portno, int reg, int onoff) 569 { 570 struct umodem_softc *sc = addr; 571 572 switch (reg) { 573 case UCOM_SET_DTR: 574 umodem_dtr(sc, onoff); 575 break; 576 case UCOM_SET_RTS: 577 umodem_rts(sc, onoff); 578 break; 579 case UCOM_SET_BREAK: 580 umodem_break(sc, onoff); 581 break; 582 default: 583 break; 584 } 585 } 586 587 usbd_status 588 umodem_set_line_coding(struct umodem_softc *sc, usb_cdc_line_state_t *state) 589 { 590 usb_device_request_t req; 591 usbd_status err; 592 593 DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 594 UGETDW(state->dwDTERate), state->bCharFormat, 595 state->bParityType, state->bDataBits)); 596 597 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 598 DPRINTF(("umodem_set_line_coding: already set\n")); 599 return (USBD_NORMAL_COMPLETION); 600 } 601 602 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 603 req.bRequest = UCDC_SET_LINE_CODING; 604 USETW(req.wValue, 0); 605 USETW(req.wIndex, sc->sc_ctl_iface_no); 606 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 607 608 err = usbd_do_request(sc->sc_udev, &req, state); 609 if (err) { 610 DPRINTF(("umodem_set_line_coding: failed, err=%s\n", 611 usbd_errstr(err))); 612 return (err); 613 } 614 615 sc->sc_line_state = *state; 616 617 return (USBD_NORMAL_COMPLETION); 618 } 619 620 usbd_status 621 umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) 622 { 623 usb_device_request_t req; 624 usbd_status err; 625 usb_cdc_abstract_state_t ast; 626 627 DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature, 628 state)); 629 630 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 631 req.bRequest = UCDC_SET_COMM_FEATURE; 632 USETW(req.wValue, feature); 633 USETW(req.wIndex, sc->sc_ctl_iface_no); 634 USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); 635 USETW(ast.wState, state); 636 637 err = usbd_do_request(sc->sc_udev, &req, &ast); 638 if (err) { 639 DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n", 640 feature, usbd_errstr(err))); 641 return (err); 642 } 643 644 return (USBD_NORMAL_COMPLETION); 645 } 646 647 int 648 umodem_common_activate(struct umodem_softc *sc, enum devact act) 649 { 650 int rv = 0; 651 652 switch (act) { 653 case DVACT_ACTIVATE: 654 return (EOPNOTSUPP); 655 656 case DVACT_DEACTIVATE: 657 sc->sc_dying = 1; 658 if (sc->sc_subdev) 659 rv = config_deactivate(sc->sc_subdev); 660 break; 661 } 662 return (rv); 663 } 664 665 int 666 umodem_common_detach(struct umodem_softc *sc, int flags) 667 { 668 int rv = 0; 669 670 DPRINTF(("umodem_common_detach: sc=%p flags=%d\n", sc, flags)); 671 672 sc->sc_dying = 1; 673 674 if (sc->sc_subdev != NULL) 675 rv = config_detach(sc->sc_subdev, flags); 676 677 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 678 USBDEV(sc->sc_dev)); 679 680 return (rv); 681 } 682
Indexes created Mon Sep 29 21:09:56 GMT 2025