1 /* $NetBSD: umodem.c,v 1.50 2005/04/12 13:12:10 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@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.c,v 1.50 2005/04/12 13:12:10 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/usbdevs.h> 78 #include <dev/usb/ucomvar.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 #define UMODEMIBUFSIZE 64 94 #define UMODEMOBUFSIZE 256 95 96 struct umodem_softc { 97 USBBASEDEVICE sc_dev; /* base device */ 98 99 usbd_device_handle sc_udev; /* USB device */ 100 101 int sc_ctl_iface_no; 102 usbd_interface_handle sc_ctl_iface; /* control interface */ 103 int sc_data_iface_no; 104 usbd_interface_handle sc_data_iface; /* data interface */ 105 106 int sc_cm_cap; /* CM capabilities */ 107 int sc_acm_cap; /* ACM capabilities */ 108 109 int sc_cm_over_data; 110 111 usb_cdc_line_state_t sc_line_state; /* current line state */ 112 u_char sc_dtr; /* current DTR state */ 113 u_char sc_rts; /* current RTS state */ 114 115 device_ptr_t sc_subdev; /* ucom device */ 116 117 u_char sc_opening; /* lock during open */ 118 u_char sc_dying; /* disconnecting */ 119 120 int sc_ctl_notify; /* Notification endpoint */ 121 usbd_pipe_handle sc_notify_pipe; /* Notification pipe */ 122 usb_cdc_notification_t sc_notify_buf; /* Notification structure */ 123 u_char sc_lsr; /* Local status register */ 124 u_char sc_msr; /* Modem status register */ 125 }; 126 127 Static usbd_status umodem_set_comm_feature(struct umodem_softc *sc, 128 int feature, int state); 129 Static usbd_status umodem_set_line_coding(struct umodem_softc *sc, 130 usb_cdc_line_state_t *state); 131 132 Static void umodem_get_caps(usbd_device_handle, int *, int *, 133 usb_interface_descriptor_t *); 134 135 Static void umodem_get_status(void *, int portno, u_char *lsr, u_char *msr); 136 Static void umodem_set(void *, int, int, int); 137 Static void umodem_dtr(struct umodem_softc *, int); 138 Static void umodem_rts(struct umodem_softc *, int); 139 Static void umodem_break(struct umodem_softc *, int); 140 Static void umodem_set_line_state(struct umodem_softc *); 141 Static int umodem_param(void *, int, struct termios *); 142 Static int umodem_ioctl(void *, int, u_long, caddr_t, int, usb_proc_ptr ); 143 Static int umodem_open(void *, int portno); 144 Static void umodem_close(void *, int portno); 145 Static void umodem_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 146 147 Static struct ucom_methods umodem_methods = { 148 umodem_get_status, 149 umodem_set, 150 umodem_param, 151 umodem_ioctl, 152 umodem_open, 153 umodem_close, 154 NULL, 155 NULL, 156 }; 157 158 USB_DECLARE_DRIVER(umodem); 159 160 USB_MATCH(umodem) 161 { 162 USB_MATCH_START(umodem, uaa); 163 usb_interface_descriptor_t *id; 164 int cm, acm; 165 166 if (uaa->iface == NULL) 167 return (UMATCH_NONE); 168 169 id = usbd_get_interface_descriptor(uaa->iface); 170 if (id == NULL || 171 id->bInterfaceClass != UICLASS_CDC || 172 id->bInterfaceSubClass != UISUBCLASS_ABSTRACT_CONTROL_MODEL || 173 id->bInterfaceProtocol != UIPROTO_CDC_AT) 174 return (UMATCH_NONE); 175 176 umodem_get_caps(uaa->device, &cm, &acm, id); 177 if (!(cm & USB_CDC_CM_DOES_CM) || 178 !(cm & USB_CDC_CM_OVER_DATA) || 179 !(acm & USB_CDC_ACM_HAS_LINE)) 180 return (UMATCH_NONE); 181 182 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO); 183 } 184 185 USB_ATTACH(umodem) 186 { 187 USB_ATTACH_START(umodem, sc, uaa); 188 usbd_device_handle dev = uaa->device; 189 usb_interface_descriptor_t *id; 190 usb_endpoint_descriptor_t *ed; 191 const usb_cdc_cm_descriptor_t *cmd; 192 char devinfo[1024]; 193 usbd_status err; 194 int data_ifcno; 195 int i; 196 struct ucom_attach_args uca; 197 198 usbd_devinfo(uaa->device, 0, devinfo, sizeof(devinfo)); 199 USB_ATTACH_SETUP; 200 201 sc->sc_udev = dev; 202 sc->sc_ctl_iface = uaa->iface; 203 204 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 205 printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev), 206 devinfo, id->bInterfaceClass, id->bInterfaceSubClass); 207 sc->sc_ctl_iface_no = id->bInterfaceNumber; 208 209 umodem_get_caps(dev, &sc->sc_cm_cap, &sc->sc_acm_cap, id); 210 211 /* Get the data interface no. */ 212 cmd = (usb_cdc_cm_descriptor_t *)usb_find_desc_if(dev, 213 UDESC_CS_INTERFACE, 214 UDESCSUB_CDC_CM, id); 215 if (cmd == NULL) { 216 printf("%s: no CM descriptor\n", USBDEVNAME(sc->sc_dev)); 217 goto bad; 218 } 219 sc->sc_data_iface_no = data_ifcno = cmd->bDataInterface; 220 221 printf("%s: data interface %d, has %sCM over data, has %sbreak\n", 222 USBDEVNAME(sc->sc_dev), data_ifcno, 223 sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ", 224 sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no "); 225 226 /* Get the data interface too. */ 227 for (i = 0; i < uaa->nifaces; i++) { 228 if (uaa->ifaces[i] != NULL) { 229 id = usbd_get_interface_descriptor(uaa->ifaces[i]); 230 if (id != NULL && id->bInterfaceNumber == data_ifcno) { 231 sc->sc_data_iface = uaa->ifaces[i]; 232 uaa->ifaces[i] = NULL; 233 } 234 } 235 } 236 if (sc->sc_data_iface == NULL) { 237 printf("%s: no data interface\n", USBDEVNAME(sc->sc_dev)); 238 goto bad; 239 } 240 241 /* 242 * Find the bulk endpoints. 243 * Iterate over all endpoints in the data interface and take note. 244 */ 245 uca.bulkin = uca.bulkout = -1; 246 247 id = usbd_get_interface_descriptor(sc->sc_data_iface); 248 for (i = 0; i < id->bNumEndpoints; i++) { 249 ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i); 250 if (ed == NULL) { 251 printf("%s: no endpoint descriptor for %d\n", 252 USBDEVNAME(sc->sc_dev), i); 253 goto bad; 254 } 255 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 256 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 257 uca.bulkin = ed->bEndpointAddress; 258 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 259 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 260 uca.bulkout = ed->bEndpointAddress; 261 } 262 } 263 264 if (uca.bulkin == -1) { 265 printf("%s: Could not find data bulk in\n", 266 USBDEVNAME(sc->sc_dev)); 267 goto bad; 268 } 269 if (uca.bulkout == -1) { 270 printf("%s: Could not find data bulk out\n", 271 USBDEVNAME(sc->sc_dev)); 272 goto bad; 273 } 274 275 if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) { 276 sc->sc_cm_over_data = 1; 277 } else { 278 if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) { 279 if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE) 280 err = umodem_set_comm_feature(sc, 281 UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED); 282 else 283 err = 0; 284 if (err) { 285 printf("%s: could not set data multiplex mode\n", 286 USBDEVNAME(sc->sc_dev)); 287 goto bad; 288 } 289 sc->sc_cm_over_data = 1; 290 } 291 } 292 293 /* 294 * The standard allows for notification messages (to indicate things 295 * like a modem hangup) to come in via an interrupt endpoint 296 * off of the control interface. Iterate over the endpoints on 297 * the control interface and see if there are any interrupt 298 * endpoints; if there are, then register it. 299 */ 300 301 sc->sc_ctl_notify = -1; 302 sc->sc_notify_pipe = NULL; 303 304 for (i = 0; i < id->bNumEndpoints; i++) { 305 ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i); 306 if (ed == NULL) 307 continue; 308 309 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 310 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 311 printf("%s: status change notification available\n", 312 USBDEVNAME(sc->sc_dev)); 313 sc->sc_ctl_notify = ed->bEndpointAddress; 314 } 315 } 316 317 sc->sc_dtr = -1; 318 319 uca.portno = UCOM_UNK_PORTNO; 320 /* bulkin, bulkout set above */ 321 uca.ibufsize = UMODEMIBUFSIZE; 322 uca.obufsize = UMODEMOBUFSIZE; 323 uca.ibufsizepad = UMODEMIBUFSIZE; 324 uca.opkthdrlen = 0; 325 uca.device = sc->sc_udev; 326 uca.iface = sc->sc_data_iface; 327 uca.methods = &umodem_methods; 328 uca.arg = sc; 329 uca.info = NULL; 330 331 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 332 USBDEV(sc->sc_dev)); 333 334 DPRINTF(("umodem_attach: sc=%p\n", sc)); 335 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca, 336 ucomprint, ucomsubmatch); 337 338 USB_ATTACH_SUCCESS_RETURN; 339 340 bad: 341 sc->sc_dying = 1; 342 USB_ATTACH_ERROR_RETURN; 343 } 344 345 Static int 346 umodem_open(void *addr, int portno) 347 { 348 struct umodem_softc *sc = addr; 349 int err; 350 351 DPRINTF(("umodem_open: sc=%p\n", sc)); 352 353 if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) { 354 err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify, 355 USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc, 356 &sc->sc_notify_buf, sizeof(sc->sc_notify_buf), 357 umodem_intr, USBD_DEFAULT_INTERVAL); 358 359 if (err) { 360 DPRINTF(("Failed to establish notify pipe: %s\n", 361 usbd_errstr(err))); 362 return EIO; 363 } 364 } 365 366 return 0; 367 } 368 369 Static void 370 umodem_close(void *addr, int portno) 371 { 372 struct umodem_softc *sc = addr; 373 int err; 374 375 DPRINTF(("umodem_close: sc=%p\n", sc)); 376 377 if (sc->sc_notify_pipe != NULL) { 378 err = usbd_abort_pipe(sc->sc_notify_pipe); 379 if (err) 380 printf("%s: abort notify pipe failed: %s\n", 381 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 382 err = usbd_close_pipe(sc->sc_notify_pipe); 383 if (err) 384 printf("%s: close notify pipe failed: %s\n", 385 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 386 sc->sc_notify_pipe = NULL; 387 } 388 } 389 390 Static void 391 umodem_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 392 { 393 struct umodem_softc *sc = priv; 394 u_char mstatus; 395 396 if (sc->sc_dying) 397 return; 398 399 if (status != USBD_NORMAL_COMPLETION) { 400 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 401 return; 402 printf("%s: abnormal status: %s\n", USBDEVNAME(sc->sc_dev), 403 usbd_errstr(status)); 404 return; 405 } 406 407 if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { 408 DPRINTF(("%s: unknown message type (%02x) on notify pipe\n", 409 USBDEVNAME(sc->sc_dev), 410 sc->sc_notify_buf.bmRequestType)); 411 return; 412 } 413 414 switch (sc->sc_notify_buf.bNotification) { 415 case UCDC_N_SERIAL_STATE: 416 /* 417 * Set the serial state in ucom driver based on 418 * the bits from the notify message 419 */ 420 if (UGETW(sc->sc_notify_buf.wLength) != 2) { 421 printf("%s: Invalid notification length! (%d)\n", 422 USBDEVNAME(sc->sc_dev), 423 UGETW(sc->sc_notify_buf.wLength)); 424 break; 425 } 426 DPRINTF(("%s: notify bytes = %02x%02x\n", 427 USBDEVNAME(sc->sc_dev), 428 sc->sc_notify_buf.data[0], 429 sc->sc_notify_buf.data[1])); 430 /* Currently, lsr is always zero. */ 431 sc->sc_lsr = sc->sc_msr = 0; 432 mstatus = sc->sc_notify_buf.data[0]; 433 434 if (ISSET(mstatus, UCDC_N_SERIAL_RI)) 435 sc->sc_msr |= UMSR_RI; 436 if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) 437 sc->sc_msr |= UMSR_DSR; 438 if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) 439 sc->sc_msr |= UMSR_DCD; 440 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 441 break; 442 default: 443 DPRINTF(("%s: unknown notify message: %02x\n", 444 USBDEVNAME(sc->sc_dev), 445 sc->sc_notify_buf.bNotification)); 446 break; 447 } 448 } 449 450 void 451 umodem_get_caps(usbd_device_handle dev, int *cm, int *acm, 452 usb_interface_descriptor_t *id) 453 { 454 const usb_cdc_cm_descriptor_t *cmd; 455 const usb_cdc_acm_descriptor_t *cad; 456 457 *cm = *acm = 0; 458 459 cmd = (usb_cdc_cm_descriptor_t *)usb_find_desc_if(dev, 460 UDESC_CS_INTERFACE, 461 UDESCSUB_CDC_CM, id); 462 if (cmd == NULL) { 463 DPRINTF(("umodem_get_desc: no CM desc\n")); 464 return; 465 } 466 *cm = cmd->bmCapabilities; 467 468 cad = (usb_cdc_acm_descriptor_t *)usb_find_desc_if(dev, 469 UDESC_CS_INTERFACE, 470 UDESCSUB_CDC_ACM, 471 id); 472 if (cad == NULL) { 473 DPRINTF(("umodem_get_desc: no ACM desc\n")); 474 return; 475 } 476 *acm = cad->bmCapabilities; 477 } 478 479 void 480 umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 481 { 482 struct umodem_softc *sc = addr; 483 484 DPRINTF(("umodem_get_status:\n")); 485 486 if (lsr != NULL) 487 *lsr = sc->sc_lsr; 488 if (msr != NULL) 489 *msr = sc->sc_msr; 490 } 491 492 int 493 umodem_param(void *addr, int portno, struct termios *t) 494 { 495 struct umodem_softc *sc = addr; 496 usbd_status err; 497 usb_cdc_line_state_t ls; 498 499 DPRINTF(("umodem_param: sc=%p\n", sc)); 500 501 USETDW(ls.dwDTERate, t->c_ospeed); 502 if (ISSET(t->c_cflag, CSTOPB)) 503 ls.bCharFormat = UCDC_STOP_BIT_2; 504 else 505 ls.bCharFormat = UCDC_STOP_BIT_1; 506 if (ISSET(t->c_cflag, PARENB)) { 507 if (ISSET(t->c_cflag, PARODD)) 508 ls.bParityType = UCDC_PARITY_ODD; 509 else 510 ls.bParityType = UCDC_PARITY_EVEN; 511 } else 512 ls.bParityType = UCDC_PARITY_NONE; 513 switch (ISSET(t->c_cflag, CSIZE)) { 514 case CS5: 515 ls.bDataBits = 5; 516 break; 517 case CS6: 518 ls.bDataBits = 6; 519 break; 520 case CS7: 521 ls.bDataBits = 7; 522 break; 523 case CS8: 524 ls.bDataBits = 8; 525 break; 526 } 527 528 err = umodem_set_line_coding(sc, &ls); 529 if (err) { 530 DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err))); 531 return (EPASSTHROUGH); 532 } 533 return (0); 534 } 535 536 int 537 umodem_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag, 538 usb_proc_ptr p) 539 { 540 struct umodem_softc *sc = addr; 541 int error = 0; 542 543 if (sc->sc_dying) 544 return (EIO); 545 546 DPRINTF(("umodemioctl: cmd=0x%08lx\n", cmd)); 547 548 switch (cmd) { 549 case USB_GET_CM_OVER_DATA: 550 *(int *)data = sc->sc_cm_over_data; 551 break; 552 553 case USB_SET_CM_OVER_DATA: 554 if (*(int *)data != sc->sc_cm_over_data) { 555 /* XXX change it */ 556 } 557 break; 558 559 default: 560 DPRINTF(("umodemioctl: unknown\n")); 561 error = EPASSTHROUGH; 562 break; 563 } 564 565 return (error); 566 } 567 568 void 569 umodem_dtr(struct umodem_softc *sc, int onoff) 570 { 571 DPRINTF(("umodem_modem: onoff=%d\n", onoff)); 572 573 if (sc->sc_dtr == onoff) 574 return; 575 sc->sc_dtr = onoff; 576 577 umodem_set_line_state(sc); 578 } 579 580 void 581 umodem_rts(struct umodem_softc *sc, int onoff) 582 { 583 DPRINTF(("umodem_modem: onoff=%d\n", onoff)); 584 585 if (sc->sc_rts == onoff) 586 return; 587 sc->sc_rts = onoff; 588 589 umodem_set_line_state(sc); 590 } 591 592 void 593 umodem_set_line_state(struct umodem_softc *sc) 594 { 595 usb_device_request_t req; 596 int ls; 597 598 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 599 (sc->sc_rts ? UCDC_LINE_RTS : 0); 600 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 601 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 602 USETW(req.wValue, ls); 603 USETW(req.wIndex, sc->sc_ctl_iface_no); 604 USETW(req.wLength, 0); 605 606 (void)usbd_do_request(sc->sc_udev, &req, 0); 607 608 } 609 610 void 611 umodem_break(struct umodem_softc *sc, int onoff) 612 { 613 usb_device_request_t req; 614 615 DPRINTF(("umodem_break: onoff=%d\n", onoff)); 616 617 if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) 618 return; 619 620 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 621 req.bRequest = UCDC_SEND_BREAK; 622 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 623 USETW(req.wIndex, sc->sc_ctl_iface_no); 624 USETW(req.wLength, 0); 625 626 (void)usbd_do_request(sc->sc_udev, &req, 0); 627 } 628 629 void 630 umodem_set(void *addr, int portno, int reg, int onoff) 631 { 632 struct umodem_softc *sc = addr; 633 634 switch (reg) { 635 case UCOM_SET_DTR: 636 umodem_dtr(sc, onoff); 637 break; 638 case UCOM_SET_RTS: 639 umodem_rts(sc, onoff); 640 break; 641 case UCOM_SET_BREAK: 642 umodem_break(sc, onoff); 643 break; 644 default: 645 break; 646 } 647 } 648 649 usbd_status 650 umodem_set_line_coding(struct umodem_softc *sc, usb_cdc_line_state_t *state) 651 { 652 usb_device_request_t req; 653 usbd_status err; 654 655 DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 656 UGETDW(state->dwDTERate), state->bCharFormat, 657 state->bParityType, state->bDataBits)); 658 659 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 660 DPRINTF(("umodem_set_line_coding: already set\n")); 661 return (USBD_NORMAL_COMPLETION); 662 } 663 664 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 665 req.bRequest = UCDC_SET_LINE_CODING; 666 USETW(req.wValue, 0); 667 USETW(req.wIndex, sc->sc_ctl_iface_no); 668 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 669 670 err = usbd_do_request(sc->sc_udev, &req, state); 671 if (err) { 672 DPRINTF(("umodem_set_line_coding: failed, err=%s\n", 673 usbd_errstr(err))); 674 return (err); 675 } 676 677 sc->sc_line_state = *state; 678 679 return (USBD_NORMAL_COMPLETION); 680 } 681 682 usbd_status 683 umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) 684 { 685 usb_device_request_t req; 686 usbd_status err; 687 usb_cdc_abstract_state_t ast; 688 689 DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature, 690 state)); 691 692 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 693 req.bRequest = UCDC_SET_COMM_FEATURE; 694 USETW(req.wValue, feature); 695 USETW(req.wIndex, sc->sc_ctl_iface_no); 696 USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); 697 USETW(ast.wState, state); 698 699 err = usbd_do_request(sc->sc_udev, &req, &ast); 700 if (err) { 701 DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n", 702 feature, usbd_errstr(err))); 703 return (err); 704 } 705 706 return (USBD_NORMAL_COMPLETION); 707 } 708 709 int 710 umodem_activate(device_ptr_t self, enum devact act) 711 { 712 struct umodem_softc *sc = (struct umodem_softc *)self; 713 int rv = 0; 714 715 switch (act) { 716 case DVACT_ACTIVATE: 717 return (EOPNOTSUPP); 718 719 case DVACT_DEACTIVATE: 720 sc->sc_dying = 1; 721 if (sc->sc_subdev) 722 rv = config_deactivate(sc->sc_subdev); 723 break; 724 } 725 return (rv); 726 } 727 728 USB_DETACH(umodem) 729 { 730 USB_DETACH_START(umodem, sc); 731 int rv = 0; 732 733 DPRINTF(("umodem_detach: sc=%p flags=%d\n", sc, flags)); 734 735 sc->sc_dying = 1; 736 737 if (sc->sc_subdev != NULL) 738 rv = config_detach(sc->sc_subdev, flags); 739 740 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 741 USBDEV(sc->sc_dev)); 742 743 return (rv); 744 } 745