1 /* $OpenBSD: umodem.c,v 1.36 2008/06/26 05:42:19 ray Exp $ */ 2 /* $NetBSD: umodem.c,v 1.45 2002/09/23 05:51:23 simonb Exp $ */ 3 4 /* 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart@augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * Comm Class spec: http://www.usb.org/developers/devclass_docs/usbccs10.pdf 36 * http://www.usb.org/developers/devclass_docs/usbcdc11.pdf 37 */ 38 39 /* 40 * TODO: 41 * - Add error recovery in various places; the big problem is what 42 * to do in a callback if there is an error. 43 * - Implement a Call Device for modems without multiplexed commands. 44 * 45 */ 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/kernel.h> 50 #include <sys/ioctl.h> 51 #include <sys/conf.h> 52 #include <sys/tty.h> 53 #include <sys/file.h> 54 #include <sys/selinfo.h> 55 #include <sys/proc.h> 56 #include <sys/vnode.h> 57 #include <sys/device.h> 58 #include <sys/poll.h> 59 60 #include <dev/usb/usb.h> 61 #include <dev/usb/usbcdc.h> 62 63 #include <dev/usb/usbdi.h> 64 #include <dev/usb/usbdi_util.h> 65 #include <dev/usb/usbdevs.h> 66 #include <dev/usb/usb_quirks.h> 67 68 #include <dev/usb/usbdevs.h> 69 #include <dev/usb/ucomvar.h> 70 71 #ifdef UMODEM_DEBUG 72 #define DPRINTFN(n, x) do { if (umodemdebug > (n)) printf x; } while (0) 73 int umodemdebug = 0; 74 #else 75 #define DPRINTFN(n, x) 76 #endif 77 #define DPRINTF(x) DPRINTFN(0, x) 78 79 /* 80 * These are the maximum number of bytes transferred per frame. 81 * Buffers are this large to deal with high speed wireless devices. 82 * Capped at 1024 as ttymalloc() is limited to this amount. 83 */ 84 #define UMODEMIBUFSIZE 1024 85 #define UMODEMOBUFSIZE 1024 86 87 struct umodem_softc { 88 struct device sc_dev; /* base device */ 89 90 usbd_device_handle sc_udev; /* USB device */ 91 92 int sc_ctl_iface_no; 93 usbd_interface_handle sc_ctl_iface; /* control interface */ 94 int sc_data_iface_no; 95 usbd_interface_handle sc_data_iface; /* data interface */ 96 97 int sc_cm_cap; /* CM capabilities */ 98 int sc_acm_cap; /* ACM capabilities */ 99 100 int sc_cm_over_data; 101 102 usb_cdc_line_state_t sc_line_state; /* current line state */ 103 u_char sc_dtr; /* current DTR state */ 104 u_char sc_rts; /* current RTS state */ 105 106 struct device *sc_subdev; /* ucom device */ 107 108 u_char sc_opening; /* lock during open */ 109 u_char sc_dying; /* disconnecting */ 110 111 int sc_ctl_notify; /* Notification endpoint */ 112 usbd_pipe_handle sc_notify_pipe; /* Notification pipe */ 113 usb_cdc_notification_t sc_notify_buf; /* Notification structure */ 114 u_char sc_lsr; /* Local status register */ 115 u_char sc_msr; /* Modem status register */ 116 }; 117 118 usbd_status umodem_set_comm_feature(struct umodem_softc *sc, 119 int feature, int state); 120 usbd_status umodem_set_line_coding(struct umodem_softc *sc, 121 usb_cdc_line_state_t *state); 122 123 void umodem_get_status(void *, int portno, u_char *lsr, u_char *msr); 124 void umodem_set(void *, int, int, int); 125 void umodem_dtr(struct umodem_softc *, int); 126 void umodem_rts(struct umodem_softc *, int); 127 void umodem_break(struct umodem_softc *, int); 128 void umodem_set_line_state(struct umodem_softc *); 129 int umodem_param(void *, int, struct termios *); 130 int umodem_ioctl(void *, int, u_long, caddr_t, int, struct proc *); 131 int umodem_open(void *, int portno); 132 void umodem_close(void *, int portno); 133 void umodem_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 134 135 struct ucom_methods umodem_methods = { 136 umodem_get_status, 137 umodem_set, 138 umodem_param, 139 umodem_ioctl, 140 umodem_open, 141 umodem_close, 142 NULL, 143 NULL, 144 }; 145 146 int umodem_match(struct device *, void *, void *); 147 void umodem_attach(struct device *, struct device *, void *); 148 int umodem_detach(struct device *, int); 149 int umodem_activate(struct device *, enum devact); 150 151 struct cfdriver umodem_cd = { 152 NULL, "umodem", DV_DULL 153 }; 154 155 const struct cfattach umodem_ca = { 156 sizeof(struct umodem_softc), 157 umodem_match, 158 umodem_attach, 159 umodem_detach, 160 umodem_activate, 161 }; 162 163 int 164 umodem_match(struct device *parent, void *match, void *aux) 165 { 166 struct usb_attach_arg *uaa = aux; 167 usb_interface_descriptor_t *id; 168 usb_device_descriptor_t *dd; 169 int ret; 170 171 if (uaa->iface == NULL) 172 return (UMATCH_NONE); 173 174 id = usbd_get_interface_descriptor(uaa->iface); 175 dd = usbd_get_device_descriptor(uaa->device); 176 if (id == NULL || dd == NULL) 177 return (UMATCH_NONE); 178 179 ret = UMATCH_NONE; 180 if (UGETW(dd->idVendor) == USB_VENDOR_KYOCERA && 181 UGETW(dd->idProduct) == USB_PRODUCT_KYOCERA_AHK3001V && 182 id->bInterfaceNumber == 0) 183 ret = UMATCH_VENDOR_PRODUCT; 184 185 if (ret == UMATCH_NONE && 186 id->bInterfaceClass == UICLASS_CDC && 187 id->bInterfaceSubClass == UISUBCLASS_ABSTRACT_CONTROL_MODEL && 188 id->bInterfaceProtocol == UIPROTO_CDC_AT) 189 ret = UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO; 190 191 return (ret); 192 } 193 194 void 195 umodem_attach(struct device *parent, struct device *self, void *aux) 196 { 197 struct umodem_softc *sc = (struct umodem_softc *)self; 198 struct usb_attach_arg *uaa = aux; 199 usbd_device_handle dev = uaa->device; 200 usb_interface_descriptor_t *id; 201 usb_endpoint_descriptor_t *ed; 202 usb_cdc_cm_descriptor_t *cmd; 203 usb_interface_descriptor_t *idesc; 204 const usb_cdc_acm_descriptor_t *acmd; 205 const usb_cdc_union_descriptor_t *uniond; 206 const usb_descriptor_t *desc; 207 usbd_desc_iter_t iter; 208 usbd_status err; 209 int current_iface_no = -1; 210 int i; 211 struct ucom_attach_args uca; 212 213 sc->sc_udev = dev; 214 sc->sc_ctl_iface = uaa->iface; 215 216 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 217 //printf("%s: iclass %d/%d\n", sc->sc_dev.dv_xname, 218 // id->bInterfaceClass, id->bInterfaceSubClass); 219 sc->sc_ctl_iface_no = id->bInterfaceNumber; 220 221 /* Get the data interface no. and capabilities */ 222 sc->sc_cm_cap = 0; 223 sc->sc_data_iface_no = 0; 224 sc->sc_acm_cap = 0; 225 usb_desc_iter_init(dev, &iter); 226 desc = usb_desc_iter_next(&iter); 227 while (desc) { 228 if (desc->bDescriptorType == UDESC_INTERFACE) { 229 idesc = (usb_interface_descriptor_t *)desc; 230 current_iface_no = idesc->bInterfaceNumber; 231 } 232 if (current_iface_no == sc->sc_ctl_iface_no && 233 desc->bDescriptorType == UDESC_CS_INTERFACE) { 234 switch(desc->bDescriptorSubtype) { 235 case UDESCSUB_CDC_CM: 236 cmd = (usb_cdc_cm_descriptor_t *)desc; 237 sc->sc_cm_cap = cmd->bmCapabilities; 238 sc->sc_data_iface_no = cmd->bDataInterface; 239 break; 240 case UDESCSUB_CDC_ACM: 241 acmd = (usb_cdc_acm_descriptor_t *)desc; 242 sc->sc_acm_cap = acmd->bmCapabilities; 243 break; 244 case UDESCSUB_CDC_UNION: 245 uniond = (usb_cdc_union_descriptor_t *)desc; 246 sc->sc_data_iface_no = 247 uniond->bSlaveInterface[0]; 248 break; 249 } 250 } 251 desc = usb_desc_iter_next(&iter); 252 } 253 254 if (sc->sc_data_iface_no == 0) { 255 printf("%s: no pointer to data interface\n", 256 sc->sc_dev.dv_xname); 257 goto bad; 258 } 259 260 printf("%s: data interface %d, has %sCM over data, has %sbreak\n", 261 sc->sc_dev.dv_xname, sc->sc_data_iface_no, 262 sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ", 263 sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no "); 264 265 /* Get the data interface too. */ 266 for (i = 0; i < uaa->nifaces; i++) { 267 if (uaa->ifaces[i] != NULL) { 268 id = usbd_get_interface_descriptor(uaa->ifaces[i]); 269 if (id != NULL && 270 id->bInterfaceNumber == sc->sc_data_iface_no) { 271 sc->sc_data_iface = uaa->ifaces[i]; 272 uaa->ifaces[i] = NULL; 273 } 274 } 275 } 276 if (sc->sc_data_iface == NULL) { 277 printf("%s: no data interface\n", sc->sc_dev.dv_xname); 278 goto bad; 279 } 280 281 /* 282 * Find the bulk endpoints. 283 * Iterate over all endpoints in the data interface and take note. 284 */ 285 uca.bulkin = uca.bulkout = -1; 286 287 id = usbd_get_interface_descriptor(sc->sc_data_iface); 288 for (i = 0; i < id->bNumEndpoints; i++) { 289 ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i); 290 if (ed == NULL) { 291 printf("%s: no endpoint descriptor for %d\n", 292 sc->sc_dev.dv_xname, i); 293 goto bad; 294 } 295 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 296 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 297 uca.bulkin = ed->bEndpointAddress; 298 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 299 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 300 uca.bulkout = ed->bEndpointAddress; 301 } 302 } 303 304 if (uca.bulkin == -1) { 305 printf("%s: Could not find data bulk in\n", 306 sc->sc_dev.dv_xname); 307 goto bad; 308 } 309 if (uca.bulkout == -1) { 310 printf("%s: Could not find data bulk out\n", 311 sc->sc_dev.dv_xname); 312 goto bad; 313 } 314 315 if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) { 316 sc->sc_cm_over_data = 1; 317 } else { 318 if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) { 319 if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE) 320 err = umodem_set_comm_feature(sc, 321 UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED); 322 else 323 err = 0; 324 if (err) { 325 printf("%s: could not set data multiplex mode\n", 326 sc->sc_dev.dv_xname); 327 goto bad; 328 } 329 sc->sc_cm_over_data = 1; 330 } 331 } 332 333 /* 334 * The standard allows for notification messages (to indicate things 335 * like a modem hangup) to come in via an interrupt endpoint 336 * off of the control interface. Iterate over the endpoints on 337 * the control interface and see if there are any interrupt 338 * endpoints; if there are, then register it. 339 */ 340 341 sc->sc_ctl_notify = -1; 342 sc->sc_notify_pipe = NULL; 343 344 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 345 for (i = 0; i < id->bNumEndpoints; i++) { 346 ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i); 347 if (ed == NULL) 348 continue; 349 350 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 351 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 352 printf("%s: status change notification available\n", 353 sc->sc_dev.dv_xname); 354 sc->sc_ctl_notify = ed->bEndpointAddress; 355 } 356 } 357 358 sc->sc_dtr = -1; 359 360 uca.portno = UCOM_UNK_PORTNO; 361 /* bulkin, bulkout set above */ 362 uca.ibufsize = UMODEMIBUFSIZE; 363 uca.obufsize = UMODEMOBUFSIZE; 364 uca.ibufsizepad = UMODEMIBUFSIZE; 365 uca.opkthdrlen = 0; 366 uca.device = sc->sc_udev; 367 uca.iface = sc->sc_data_iface; 368 uca.methods = &umodem_methods; 369 uca.arg = sc; 370 uca.info = NULL; 371 372 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 373 &sc->sc_dev); 374 375 DPRINTF(("umodem_attach: sc=%p\n", sc)); 376 sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch); 377 378 return; 379 380 bad: 381 sc->sc_dying = 1; 382 } 383 384 int 385 umodem_open(void *addr, int portno) 386 { 387 struct umodem_softc *sc = addr; 388 int err; 389 390 DPRINTF(("umodem_open: sc=%p\n", sc)); 391 392 if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) { 393 err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify, 394 USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc, 395 &sc->sc_notify_buf, sizeof(sc->sc_notify_buf), 396 umodem_intr, USBD_DEFAULT_INTERVAL); 397 398 if (err) { 399 DPRINTF(("Failed to establish notify pipe: %s\n", 400 usbd_errstr(err))); 401 return EIO; 402 } 403 } 404 405 return 0; 406 } 407 408 void 409 umodem_close(void *addr, int portno) 410 { 411 struct umodem_softc *sc = addr; 412 int err; 413 414 DPRINTF(("umodem_close: sc=%p\n", sc)); 415 416 if (sc->sc_notify_pipe != NULL) { 417 err = usbd_abort_pipe(sc->sc_notify_pipe); 418 if (err) 419 printf("%s: abort notify pipe failed: %s\n", 420 sc->sc_dev.dv_xname, usbd_errstr(err)); 421 err = usbd_close_pipe(sc->sc_notify_pipe); 422 if (err) 423 printf("%s: close notify pipe failed: %s\n", 424 sc->sc_dev.dv_xname, usbd_errstr(err)); 425 sc->sc_notify_pipe = NULL; 426 } 427 } 428 429 void 430 umodem_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 431 { 432 struct umodem_softc *sc = priv; 433 u_char mstatus; 434 435 if (sc->sc_dying) 436 return; 437 438 if (status != USBD_NORMAL_COMPLETION) { 439 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 440 return; 441 printf("%s: abnormal status: %s\n", sc->sc_dev.dv_xname, 442 usbd_errstr(status)); 443 return; 444 } 445 446 if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { 447 DPRINTF(("%s: unknown message type (%02x) on notify pipe\n", 448 sc->sc_dev.dv_xname, 449 sc->sc_notify_buf.bmRequestType)); 450 return; 451 } 452 453 switch (sc->sc_notify_buf.bNotification) { 454 case UCDC_N_SERIAL_STATE: 455 /* 456 * Set the serial state in ucom driver based on 457 * the bits from the notify message 458 */ 459 if (UGETW(sc->sc_notify_buf.wLength) != 2) { 460 printf("%s: Invalid notification length! (%d)\n", 461 sc->sc_dev.dv_xname, 462 UGETW(sc->sc_notify_buf.wLength)); 463 break; 464 } 465 DPRINTF(("%s: notify bytes = %02x%02x\n", 466 sc->sc_dev.dv_xname, 467 sc->sc_notify_buf.data[0], 468 sc->sc_notify_buf.data[1])); 469 /* Currently, lsr is always zero. */ 470 sc->sc_lsr = sc->sc_msr = 0; 471 mstatus = sc->sc_notify_buf.data[0]; 472 473 if (ISSET(mstatus, UCDC_N_SERIAL_RI)) 474 sc->sc_msr |= UMSR_RI; 475 if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) 476 sc->sc_msr |= UMSR_DSR; 477 if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) 478 sc->sc_msr |= UMSR_DCD; 479 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 480 break; 481 default: 482 DPRINTF(("%s: unknown notify message: %02x\n", 483 sc->sc_dev.dv_xname, 484 sc->sc_notify_buf.bNotification)); 485 break; 486 } 487 } 488 489 void 490 umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 491 { 492 struct umodem_softc *sc = addr; 493 494 DPRINTF(("umodem_get_status:\n")); 495 496 if (lsr != NULL) 497 *lsr = sc->sc_lsr; 498 if (msr != NULL) 499 *msr = sc->sc_msr; 500 } 501 502 int 503 umodem_param(void *addr, int portno, struct termios *t) 504 { 505 struct umodem_softc *sc = addr; 506 usbd_status err; 507 usb_cdc_line_state_t ls; 508 509 DPRINTF(("umodem_param: sc=%p\n", sc)); 510 511 USETDW(ls.dwDTERate, t->c_ospeed); 512 if (ISSET(t->c_cflag, CSTOPB)) 513 ls.bCharFormat = UCDC_STOP_BIT_2; 514 else 515 ls.bCharFormat = UCDC_STOP_BIT_1; 516 if (ISSET(t->c_cflag, PARENB)) { 517 if (ISSET(t->c_cflag, PARODD)) 518 ls.bParityType = UCDC_PARITY_ODD; 519 else 520 ls.bParityType = UCDC_PARITY_EVEN; 521 } else 522 ls.bParityType = UCDC_PARITY_NONE; 523 switch (ISSET(t->c_cflag, CSIZE)) { 524 case CS5: 525 ls.bDataBits = 5; 526 break; 527 case CS6: 528 ls.bDataBits = 6; 529 break; 530 case CS7: 531 ls.bDataBits = 7; 532 break; 533 case CS8: 534 ls.bDataBits = 8; 535 break; 536 } 537 538 err = umodem_set_line_coding(sc, &ls); 539 if (err) { 540 DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err))); 541 return (1); 542 } 543 return (0); 544 } 545 546 int 547 umodem_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag, 548 struct proc *p) 549 { 550 struct umodem_softc *sc = addr; 551 int error = 0; 552 553 if (sc->sc_dying) 554 return (EIO); 555 556 DPRINTF(("umodemioctl: cmd=0x%08lx\n", cmd)); 557 558 switch (cmd) { 559 case USB_GET_CM_OVER_DATA: 560 *(int *)data = sc->sc_cm_over_data; 561 break; 562 563 case USB_SET_CM_OVER_DATA: 564 if (*(int *)data != sc->sc_cm_over_data) { 565 /* XXX change it */ 566 } 567 break; 568 569 default: 570 DPRINTF(("umodemioctl: unknown\n")); 571 error = ENOTTY; 572 break; 573 } 574 575 return (error); 576 } 577 578 void 579 umodem_dtr(struct umodem_softc *sc, int onoff) 580 { 581 DPRINTF(("umodem_modem: onoff=%d\n", onoff)); 582 583 if (sc->sc_dtr == onoff) 584 return; 585 sc->sc_dtr = onoff; 586 587 umodem_set_line_state(sc); 588 } 589 590 void 591 umodem_rts(struct umodem_softc *sc, int onoff) 592 { 593 DPRINTF(("umodem_modem: onoff=%d\n", onoff)); 594 595 if (sc->sc_rts == onoff) 596 return; 597 sc->sc_rts = onoff; 598 599 umodem_set_line_state(sc); 600 } 601 602 void 603 umodem_set_line_state(struct umodem_softc *sc) 604 { 605 usb_device_request_t req; 606 int ls; 607 608 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 609 (sc->sc_rts ? UCDC_LINE_RTS : 0); 610 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 611 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 612 USETW(req.wValue, ls); 613 USETW(req.wIndex, sc->sc_ctl_iface_no); 614 USETW(req.wLength, 0); 615 616 (void)usbd_do_request(sc->sc_udev, &req, 0); 617 618 } 619 620 void 621 umodem_break(struct umodem_softc *sc, int onoff) 622 { 623 usb_device_request_t req; 624 625 DPRINTF(("umodem_break: onoff=%d\n", onoff)); 626 627 if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) 628 return; 629 630 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 631 req.bRequest = UCDC_SEND_BREAK; 632 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 633 USETW(req.wIndex, sc->sc_ctl_iface_no); 634 USETW(req.wLength, 0); 635 636 (void)usbd_do_request(sc->sc_udev, &req, 0); 637 } 638 639 void 640 umodem_set(void *addr, int portno, int reg, int onoff) 641 { 642 struct umodem_softc *sc = addr; 643 644 switch (reg) { 645 case UCOM_SET_DTR: 646 umodem_dtr(sc, onoff); 647 break; 648 case UCOM_SET_RTS: 649 umodem_rts(sc, onoff); 650 break; 651 case UCOM_SET_BREAK: 652 umodem_break(sc, onoff); 653 break; 654 default: 655 break; 656 } 657 } 658 659 usbd_status 660 umodem_set_line_coding(struct umodem_softc *sc, usb_cdc_line_state_t *state) 661 { 662 usb_device_request_t req; 663 usbd_status err; 664 665 DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 666 UGETDW(state->dwDTERate), state->bCharFormat, 667 state->bParityType, state->bDataBits)); 668 669 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 670 DPRINTF(("umodem_set_line_coding: already set\n")); 671 return (USBD_NORMAL_COMPLETION); 672 } 673 674 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 675 req.bRequest = UCDC_SET_LINE_CODING; 676 USETW(req.wValue, 0); 677 USETW(req.wIndex, sc->sc_ctl_iface_no); 678 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 679 680 err = usbd_do_request(sc->sc_udev, &req, state); 681 if (err) { 682 DPRINTF(("umodem_set_line_coding: failed, err=%s\n", 683 usbd_errstr(err))); 684 return (err); 685 } 686 687 sc->sc_line_state = *state; 688 689 return (USBD_NORMAL_COMPLETION); 690 } 691 692 usbd_status 693 umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) 694 { 695 usb_device_request_t req; 696 usbd_status err; 697 usb_cdc_abstract_state_t ast; 698 699 DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature, 700 state)); 701 702 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 703 req.bRequest = UCDC_SET_COMM_FEATURE; 704 USETW(req.wValue, feature); 705 USETW(req.wIndex, sc->sc_ctl_iface_no); 706 USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); 707 USETW(ast.wState, state); 708 709 err = usbd_do_request(sc->sc_udev, &req, &ast); 710 if (err) { 711 DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n", 712 feature, usbd_errstr(err))); 713 return (err); 714 } 715 716 return (USBD_NORMAL_COMPLETION); 717 } 718 719 int 720 umodem_activate(struct device *self, enum devact act) 721 { 722 struct umodem_softc *sc = (struct umodem_softc *)self; 723 int rv = 0; 724 725 switch (act) { 726 case DVACT_ACTIVATE: 727 break; 728 729 case DVACT_DEACTIVATE: 730 sc->sc_dying = 1; 731 if (sc->sc_subdev) 732 rv = config_deactivate(sc->sc_subdev); 733 break; 734 } 735 return (rv); 736 } 737 738 int 739 umodem_detach(struct device *self, int flags) 740 { 741 struct umodem_softc *sc = (struct umodem_softc *)self; 742 int rv = 0; 743 744 DPRINTF(("umodem_detach: sc=%p flags=%d\n", sc, flags)); 745 746 sc->sc_dying = 1; 747 748 if (sc->sc_subdev != NULL) 749 rv = config_detach(sc->sc_subdev, flags); 750 751 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 752 &sc->sc_dev); 753 754 return (rv); 755 } 756