1 /* $OpenBSD: umodem.c,v 1.62 2017/03/29 01:27:40 jsg 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/conf.h> 51 #include <sys/tty.h> 52 #include <sys/file.h> 53 #include <sys/selinfo.h> 54 #include <sys/device.h> 55 #include <sys/poll.h> 56 57 #include <dev/usb/usb.h> 58 #include <dev/usb/usbcdc.h> 59 60 #include <dev/usb/usbdi.h> 61 #include <dev/usb/usbdevs.h> 62 #include <dev/usb/usb_quirks.h> 63 64 #include <dev/usb/ucomvar.h> 65 66 #ifdef UMODEM_DEBUG 67 #define DPRINTFN(n, x) do { if (umodemdebug > (n)) printf x; } while (0) 68 int umodemdebug = 0; 69 #else 70 #define DPRINTFN(n, x) 71 #endif 72 #define DPRINTF(x) DPRINTFN(0, x) 73 74 /* 75 * These are the maximum number of bytes transferred per frame. 76 * Buffers are this large to deal with high speed wireless devices. 77 * Capped at 1024 as ttymalloc() is limited to this amount. 78 */ 79 #define UMODEMIBUFSIZE 1024 80 #define UMODEMOBUFSIZE 1024 81 82 struct umodem_softc { 83 struct device sc_dev; /* base device */ 84 85 struct usbd_device *sc_udev; /* USB device */ 86 87 int sc_ctl_iface_no; 88 struct usbd_interface *sc_ctl_iface; /* control interface */ 89 struct usbd_interface *sc_data_iface; /* data interface */ 90 91 int sc_cm_cap; /* CM capabilities */ 92 int sc_acm_cap; /* ACM capabilities */ 93 94 int sc_cm_over_data; 95 96 struct usb_cdc_line_state sc_line_state;/* current line state */ 97 u_char sc_dtr; /* current DTR state */ 98 u_char sc_rts; /* current RTS state */ 99 100 struct device *sc_subdev; /* ucom device */ 101 102 u_char sc_opening; /* lock during open */ 103 104 int sc_ctl_notify; /* Notification endpoint */ 105 struct usbd_pipe *sc_notify_pipe; /* Notification pipe */ 106 struct usb_cdc_notification sc_notify_buf; /* Notification structure */ 107 u_char sc_lsr; /* Local status register */ 108 u_char sc_msr; /* Modem status register */ 109 }; 110 111 usbd_status umodem_set_comm_feature(struct umodem_softc *sc, 112 int feature, int state); 113 usbd_status umodem_set_line_coding(struct umodem_softc *sc, 114 struct usb_cdc_line_state *state); 115 116 void umodem_get_status(void *, int portno, u_char *lsr, u_char *msr); 117 void umodem_set(void *, int, int, int); 118 void umodem_dtr(struct umodem_softc *, int); 119 void umodem_rts(struct umodem_softc *, int); 120 void umodem_break(struct umodem_softc *, int); 121 void umodem_set_line_state(struct umodem_softc *); 122 int umodem_param(void *, int, struct termios *); 123 int umodem_open(void *, int portno); 124 void umodem_close(void *, int portno); 125 void umodem_intr(struct usbd_xfer *, void *, usbd_status); 126 127 struct ucom_methods umodem_methods = { 128 umodem_get_status, 129 umodem_set, 130 umodem_param, 131 NULL, 132 umodem_open, 133 umodem_close, 134 NULL, 135 NULL, 136 }; 137 138 int umodem_match(struct device *, void *, void *); 139 void umodem_attach(struct device *, struct device *, void *); 140 int umodem_detach(struct device *, int); 141 142 void umodem_get_caps(struct usb_attach_arg *, int, int *, int *, int *); 143 144 struct cfdriver umodem_cd = { 145 NULL, "umodem", DV_DULL 146 }; 147 148 const struct cfattach umodem_ca = { 149 sizeof(struct umodem_softc), umodem_match, umodem_attach, umodem_detach 150 }; 151 152 void 153 umodem_get_caps(struct usb_attach_arg *uaa, int ctl_iface_no, 154 int *data_iface_idx, int *cm_cap, int *acm_cap) 155 { 156 const usb_descriptor_t *desc; 157 const usb_interface_descriptor_t *id; 158 const struct usb_cdc_cm_descriptor *cmd; 159 const struct usb_cdc_acm_descriptor *acmd; 160 const struct usb_cdc_union_descriptor *uniond; 161 struct usbd_desc_iter iter; 162 int current_iface_no = -1; 163 int data_iface_no = -1; 164 int i; 165 166 *data_iface_idx = -1; 167 *cm_cap = *acm_cap = 0; 168 usbd_desc_iter_init(uaa->device, &iter); 169 desc = usbd_desc_iter_next(&iter); 170 while (desc) { 171 if (desc->bDescriptorType == UDESC_INTERFACE) { 172 id = (usb_interface_descriptor_t *)desc; 173 current_iface_no = id->bInterfaceNumber; 174 if (current_iface_no != ctl_iface_no && 175 id->bInterfaceClass == UICLASS_CDC_DATA && 176 id->bInterfaceSubClass == UISUBCLASS_DATA && 177 data_iface_no == -1) 178 data_iface_no = current_iface_no; 179 } 180 if (current_iface_no == ctl_iface_no && 181 desc->bDescriptorType == UDESC_CS_INTERFACE) { 182 switch(desc->bDescriptorSubtype) { 183 case UDESCSUB_CDC_CM: 184 cmd = (struct usb_cdc_cm_descriptor *)desc; 185 *cm_cap = cmd->bmCapabilities; 186 data_iface_no = cmd->bDataInterface; 187 break; 188 case UDESCSUB_CDC_ACM: 189 acmd = (struct usb_cdc_acm_descriptor *)desc; 190 *acm_cap = acmd->bmCapabilities; 191 break; 192 case UDESCSUB_CDC_UNION: 193 uniond = 194 (struct usb_cdc_union_descriptor *)desc; 195 data_iface_no = uniond->bSlaveInterface[0]; 196 break; 197 } 198 } 199 desc = usbd_desc_iter_next(&iter); 200 } 201 202 /* 203 * If we got a data interface number, make sure the corresponding 204 * interface exists and is not already claimed. 205 */ 206 if (data_iface_no != -1) { 207 for (i = 0; i < uaa->nifaces; i++) { 208 id = usbd_get_interface_descriptor(uaa->ifaces[i]); 209 210 if (id == NULL) 211 continue; 212 213 if (id->bInterfaceNumber == data_iface_no) { 214 if (!usbd_iface_claimed(uaa->device, i)) 215 *data_iface_idx = i; 216 break; 217 } 218 } 219 } 220 } 221 222 int 223 umodem_match(struct device *parent, void *match, void *aux) 224 { 225 struct usb_attach_arg *uaa = aux; 226 usb_interface_descriptor_t *id; 227 usb_device_descriptor_t *dd; 228 int data_iface_idx, cm_cap, acm_cap, ret = UMATCH_NONE; 229 230 if (uaa->iface == NULL) 231 return (ret); 232 233 id = usbd_get_interface_descriptor(uaa->iface); 234 dd = usbd_get_device_descriptor(uaa->device); 235 if (id == NULL || dd == NULL) 236 return (ret); 237 238 ret = UMATCH_NONE; 239 240 if (UGETW(dd->idVendor) == USB_VENDOR_KYOCERA && 241 UGETW(dd->idProduct) == USB_PRODUCT_KYOCERA_AHK3001V && 242 id->bInterfaceNumber == 0) 243 ret = UMATCH_VENDOR_PRODUCT; 244 245 if (ret == UMATCH_NONE && 246 id->bInterfaceClass == UICLASS_CDC && 247 id->bInterfaceSubClass == UISUBCLASS_ABSTRACT_CONTROL_MODEL && 248 (id->bInterfaceProtocol == UIPROTO_CDC_AT || 249 id->bInterfaceProtocol == UIPROTO_CDC_NOCLASS)) 250 ret = UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO; 251 252 if (ret == UMATCH_NONE) 253 return (ret); 254 255 /* umodem doesn't support devices without a data iface */ 256 umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_idx, 257 &cm_cap, &acm_cap); 258 if (data_iface_idx == -1) 259 ret = UMATCH_NONE; 260 261 return (ret); 262 } 263 264 void 265 umodem_attach(struct device *parent, struct device *self, void *aux) 266 { 267 struct umodem_softc *sc = (struct umodem_softc *)self; 268 struct usb_attach_arg *uaa = aux; 269 struct usbd_device *dev = uaa->device; 270 usb_interface_descriptor_t *id; 271 usb_endpoint_descriptor_t *ed; 272 usbd_status err; 273 int data_iface_idx = -1; 274 int i; 275 struct ucom_attach_args uca; 276 277 sc->sc_udev = dev; 278 sc->sc_ctl_iface = uaa->iface; 279 280 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 281 //printf("%s: iclass %d/%d\n", sc->sc_dev.dv_xname, 282 // id->bInterfaceClass, id->bInterfaceSubClass); 283 sc->sc_ctl_iface_no = id->bInterfaceNumber; 284 285 /* Get the capabilities. */ 286 umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_idx, 287 &sc->sc_cm_cap, &sc->sc_acm_cap); 288 289 usbd_claim_iface(sc->sc_udev, data_iface_idx); 290 sc->sc_data_iface = uaa->ifaces[data_iface_idx]; 291 id = usbd_get_interface_descriptor(sc->sc_data_iface); 292 293 printf("%s: data interface %d, has %sCM over data, has %sbreak\n", 294 sc->sc_dev.dv_xname, id->bInterfaceNumber, 295 sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ", 296 sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no "); 297 298 /* 299 * Find the bulk endpoints. 300 * Iterate over all endpoints in the data interface and take note. 301 */ 302 uca.bulkin = uca.bulkout = -1; 303 304 for (i = 0; i < id->bNumEndpoints; i++) { 305 ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i); 306 if (ed == NULL) { 307 printf("%s: no endpoint descriptor for %d\n", 308 sc->sc_dev.dv_xname, i); 309 goto bad; 310 } 311 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 312 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 313 uca.bulkin = ed->bEndpointAddress; 314 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 315 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 316 uca.bulkout = ed->bEndpointAddress; 317 } 318 } 319 320 if (uca.bulkin == -1) { 321 printf("%s: Could not find data bulk in\n", 322 sc->sc_dev.dv_xname); 323 goto bad; 324 } 325 if (uca.bulkout == -1) { 326 printf("%s: Could not find data bulk out\n", 327 sc->sc_dev.dv_xname); 328 goto bad; 329 } 330 331 if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) { 332 sc->sc_cm_over_data = 1; 333 } else { 334 if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) { 335 if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE) 336 err = umodem_set_comm_feature(sc, 337 UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED); 338 else 339 err = 0; 340 if (err) { 341 printf("%s: could not set data multiplex mode\n", 342 sc->sc_dev.dv_xname); 343 goto bad; 344 } 345 sc->sc_cm_over_data = 1; 346 } 347 } 348 349 /* 350 * The standard allows for notification messages (to indicate things 351 * like a modem hangup) to come in via an interrupt endpoint 352 * off of the control interface. Iterate over the endpoints on 353 * the control interface and see if there are any interrupt 354 * endpoints; if there are, then register it. 355 */ 356 357 sc->sc_ctl_notify = -1; 358 sc->sc_notify_pipe = NULL; 359 360 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 361 for (i = 0; i < id->bNumEndpoints; i++) { 362 ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i); 363 if (ed == NULL) 364 continue; 365 366 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 367 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 368 printf("%s: status change notification available\n", 369 sc->sc_dev.dv_xname); 370 sc->sc_ctl_notify = ed->bEndpointAddress; 371 } 372 } 373 374 sc->sc_dtr = -1; 375 376 uca.portno = UCOM_UNK_PORTNO; 377 /* bulkin, bulkout set above */ 378 uca.ibufsize = UMODEMIBUFSIZE; 379 uca.obufsize = UMODEMOBUFSIZE; 380 uca.ibufsizepad = UMODEMIBUFSIZE; 381 uca.opkthdrlen = 0; 382 uca.device = sc->sc_udev; 383 uca.iface = sc->sc_data_iface; 384 uca.methods = &umodem_methods; 385 uca.arg = sc; 386 uca.info = NULL; 387 388 DPRINTF(("umodem_attach: sc=%p\n", sc)); 389 sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch); 390 391 return; 392 393 bad: 394 usbd_deactivate(sc->sc_udev); 395 } 396 397 int 398 umodem_open(void *addr, int portno) 399 { 400 struct umodem_softc *sc = addr; 401 int err; 402 403 DPRINTF(("umodem_open: sc=%p\n", sc)); 404 405 if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) { 406 err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify, 407 USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc, 408 &sc->sc_notify_buf, sizeof(sc->sc_notify_buf), 409 umodem_intr, USBD_DEFAULT_INTERVAL); 410 411 if (err) { 412 DPRINTF(("Failed to establish notify pipe: %s\n", 413 usbd_errstr(err))); 414 return EIO; 415 } 416 } 417 418 return 0; 419 } 420 421 void 422 umodem_close(void *addr, int portno) 423 { 424 struct umodem_softc *sc = addr; 425 int err; 426 427 DPRINTF(("umodem_close: sc=%p\n", sc)); 428 429 if (sc->sc_notify_pipe != NULL) { 430 usbd_abort_pipe(sc->sc_notify_pipe); 431 err = usbd_close_pipe(sc->sc_notify_pipe); 432 if (err) 433 printf("%s: close notify pipe failed: %s\n", 434 sc->sc_dev.dv_xname, usbd_errstr(err)); 435 sc->sc_notify_pipe = NULL; 436 } 437 } 438 439 void 440 umodem_intr(struct usbd_xfer *xfer, void *priv, usbd_status status) 441 { 442 struct umodem_softc *sc = priv; 443 u_char mstatus; 444 445 if (usbd_is_dying(sc->sc_udev)) 446 return; 447 448 if (status != USBD_NORMAL_COMPLETION) { 449 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 450 return; 451 DPRINTF(("%s: abnormal status: %s\n", sc->sc_dev.dv_xname, 452 usbd_errstr(status))); 453 usbd_clear_endpoint_stall_async(sc->sc_notify_pipe); 454 return; 455 } 456 457 if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { 458 DPRINTF(("%s: unknown message type (%02x) on notify pipe\n", 459 sc->sc_dev.dv_xname, 460 sc->sc_notify_buf.bmRequestType)); 461 return; 462 } 463 464 switch (sc->sc_notify_buf.bNotification) { 465 case UCDC_N_SERIAL_STATE: 466 /* 467 * Set the serial state in ucom driver based on 468 * the bits from the notify message 469 */ 470 if (UGETW(sc->sc_notify_buf.wLength) != 2) { 471 printf("%s: Invalid notification length! (%d)\n", 472 sc->sc_dev.dv_xname, 473 UGETW(sc->sc_notify_buf.wLength)); 474 break; 475 } 476 DPRINTF(("%s: notify bytes = %02x%02x\n", 477 sc->sc_dev.dv_xname, 478 sc->sc_notify_buf.data[0], 479 sc->sc_notify_buf.data[1])); 480 /* Currently, lsr is always zero. */ 481 sc->sc_lsr = sc->sc_msr = 0; 482 mstatus = sc->sc_notify_buf.data[0]; 483 484 if (ISSET(mstatus, UCDC_N_SERIAL_RI)) 485 sc->sc_msr |= UMSR_RI; 486 if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) 487 sc->sc_msr |= UMSR_DSR; 488 if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) 489 sc->sc_msr |= UMSR_DCD; 490 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 491 break; 492 default: 493 DPRINTF(("%s: unknown notify message: %02x\n", 494 sc->sc_dev.dv_xname, 495 sc->sc_notify_buf.bNotification)); 496 break; 497 } 498 } 499 500 void 501 umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 502 { 503 struct umodem_softc *sc = addr; 504 505 DPRINTF(("umodem_get_status:\n")); 506 507 if (lsr != NULL) 508 *lsr = sc->sc_lsr; 509 if (msr != NULL) 510 *msr = sc->sc_msr; 511 } 512 513 int 514 umodem_param(void *addr, int portno, struct termios *t) 515 { 516 struct umodem_softc *sc = addr; 517 usbd_status err; 518 struct usb_cdc_line_state ls; 519 520 DPRINTF(("umodem_param: sc=%p\n", sc)); 521 522 USETDW(ls.dwDTERate, t->c_ospeed); 523 if (ISSET(t->c_cflag, CSTOPB)) 524 ls.bCharFormat = UCDC_STOP_BIT_2; 525 else 526 ls.bCharFormat = UCDC_STOP_BIT_1; 527 if (ISSET(t->c_cflag, PARENB)) { 528 if (ISSET(t->c_cflag, PARODD)) 529 ls.bParityType = UCDC_PARITY_ODD; 530 else 531 ls.bParityType = UCDC_PARITY_EVEN; 532 } else 533 ls.bParityType = UCDC_PARITY_NONE; 534 switch (ISSET(t->c_cflag, CSIZE)) { 535 case CS5: 536 ls.bDataBits = 5; 537 break; 538 case CS6: 539 ls.bDataBits = 6; 540 break; 541 case CS7: 542 ls.bDataBits = 7; 543 break; 544 case CS8: 545 ls.bDataBits = 8; 546 break; 547 } 548 549 err = umodem_set_line_coding(sc, &ls); 550 if (err) { 551 DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err))); 552 return (1); 553 } 554 return (0); 555 } 556 557 void 558 umodem_dtr(struct umodem_softc *sc, int onoff) 559 { 560 DPRINTF(("umodem_dtr: onoff=%d\n", onoff)); 561 562 if (sc->sc_dtr == onoff) 563 return; 564 sc->sc_dtr = onoff; 565 566 umodem_set_line_state(sc); 567 } 568 569 void 570 umodem_rts(struct umodem_softc *sc, int onoff) 571 { 572 DPRINTF(("umodem_rts: onoff=%d\n", onoff)); 573 574 if (sc->sc_rts == onoff) 575 return; 576 sc->sc_rts = onoff; 577 578 umodem_set_line_state(sc); 579 } 580 581 void 582 umodem_set_line_state(struct umodem_softc *sc) 583 { 584 usb_device_request_t req; 585 int ls; 586 587 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 588 (sc->sc_rts ? UCDC_LINE_RTS : 0); 589 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 590 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 591 USETW(req.wValue, ls); 592 USETW(req.wIndex, sc->sc_ctl_iface_no); 593 USETW(req.wLength, 0); 594 595 (void)usbd_do_request(sc->sc_udev, &req, 0); 596 597 } 598 599 void 600 umodem_break(struct umodem_softc *sc, int onoff) 601 { 602 usb_device_request_t req; 603 604 DPRINTF(("umodem_break: onoff=%d\n", onoff)); 605 606 if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) 607 return; 608 609 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 610 req.bRequest = UCDC_SEND_BREAK; 611 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 612 USETW(req.wIndex, sc->sc_ctl_iface_no); 613 USETW(req.wLength, 0); 614 615 (void)usbd_do_request(sc->sc_udev, &req, 0); 616 } 617 618 void 619 umodem_set(void *addr, int portno, int reg, int onoff) 620 { 621 struct umodem_softc *sc = addr; 622 623 switch (reg) { 624 case UCOM_SET_DTR: 625 umodem_dtr(sc, onoff); 626 break; 627 case UCOM_SET_RTS: 628 umodem_rts(sc, onoff); 629 break; 630 case UCOM_SET_BREAK: 631 umodem_break(sc, onoff); 632 break; 633 default: 634 break; 635 } 636 } 637 638 usbd_status 639 umodem_set_line_coding(struct umodem_softc *sc, 640 struct usb_cdc_line_state *state) 641 { 642 usb_device_request_t req; 643 usbd_status err; 644 645 DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 646 UGETDW(state->dwDTERate), state->bCharFormat, 647 state->bParityType, state->bDataBits)); 648 649 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 650 DPRINTF(("umodem_set_line_coding: already set\n")); 651 return (USBD_NORMAL_COMPLETION); 652 } 653 654 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 655 req.bRequest = UCDC_SET_LINE_CODING; 656 USETW(req.wValue, 0); 657 USETW(req.wIndex, sc->sc_ctl_iface_no); 658 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 659 660 err = usbd_do_request(sc->sc_udev, &req, state); 661 if (err) { 662 DPRINTF(("umodem_set_line_coding: failed, err=%s\n", 663 usbd_errstr(err))); 664 return (err); 665 } 666 667 sc->sc_line_state = *state; 668 669 return (USBD_NORMAL_COMPLETION); 670 } 671 672 usbd_status 673 umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) 674 { 675 usb_device_request_t req; 676 usbd_status err; 677 struct usb_cdc_abstract_state ast; 678 679 DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature, 680 state)); 681 682 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 683 req.bRequest = UCDC_SET_COMM_FEATURE; 684 USETW(req.wValue, feature); 685 USETW(req.wIndex, sc->sc_ctl_iface_no); 686 USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); 687 USETW(ast.wState, state); 688 689 err = usbd_do_request(sc->sc_udev, &req, &ast); 690 if (err) { 691 DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n", 692 feature, usbd_errstr(err))); 693 return (err); 694 } 695 696 return (USBD_NORMAL_COMPLETION); 697 } 698 699 int 700 umodem_detach(struct device *self, int flags) 701 { 702 struct umodem_softc *sc = (struct umodem_softc *)self; 703 int rv = 0; 704 705 DPRINTF(("umodem_detach: sc=%p flags=%d\n", sc, flags)); 706 707 if (sc->sc_notify_pipe != NULL) { 708 usbd_abort_pipe(sc->sc_notify_pipe); 709 usbd_close_pipe(sc->sc_notify_pipe); 710 sc->sc_notify_pipe = NULL; 711 } 712 713 if (sc->sc_subdev != NULL) 714 rv = config_detach(sc->sc_subdev, flags); 715 716 return (rv); 717 } 718