1 /* $OpenBSD: umodem.c,v 1.60 2016/05/24 05:35:01 mpi 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 /* protocol of 0 so won't match the test below */ 241 if (UGETW(dd->idVendor) == USB_VENDOR_ATMEL && 242 UGETW(dd->idProduct) == USB_PRODUCT_ATMEL_AT91_CDC_ACM) 243 ret = UMATCH_VENDOR_PRODUCT; 244 245 if (UGETW(dd->idVendor) == USB_VENDOR_KYOCERA && 246 UGETW(dd->idProduct) == USB_PRODUCT_KYOCERA_AHK3001V && 247 id->bInterfaceNumber == 0) 248 ret = UMATCH_VENDOR_PRODUCT; 249 250 if (UGETW(dd->idVendor) == USB_VENDOR_ARDUINO && 251 UGETW(dd->idProduct) == USB_PRODUCT_ARDUINO_LEONARDO) 252 ret = UMATCH_VENDOR_PRODUCT; 253 254 if (ret == UMATCH_NONE && 255 id->bInterfaceClass == UICLASS_CDC && 256 id->bInterfaceSubClass == UISUBCLASS_ABSTRACT_CONTROL_MODEL && 257 id->bInterfaceProtocol == UIPROTO_CDC_AT) 258 ret = UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO; 259 260 if (ret == UMATCH_NONE) 261 return (ret); 262 263 /* umodem doesn't support devices without a data iface */ 264 umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_idx, 265 &cm_cap, &acm_cap); 266 if (data_iface_idx == -1) 267 ret = UMATCH_NONE; 268 269 return (ret); 270 } 271 272 void 273 umodem_attach(struct device *parent, struct device *self, void *aux) 274 { 275 struct umodem_softc *sc = (struct umodem_softc *)self; 276 struct usb_attach_arg *uaa = aux; 277 struct usbd_device *dev = uaa->device; 278 usb_interface_descriptor_t *id; 279 usb_endpoint_descriptor_t *ed; 280 usbd_status err; 281 int data_iface_idx = -1; 282 int i; 283 struct ucom_attach_args uca; 284 285 sc->sc_udev = dev; 286 sc->sc_ctl_iface = uaa->iface; 287 288 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 289 //printf("%s: iclass %d/%d\n", sc->sc_dev.dv_xname, 290 // id->bInterfaceClass, id->bInterfaceSubClass); 291 sc->sc_ctl_iface_no = id->bInterfaceNumber; 292 293 /* Get the capabilities. */ 294 umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_idx, 295 &sc->sc_cm_cap, &sc->sc_acm_cap); 296 297 usbd_claim_iface(sc->sc_udev, data_iface_idx); 298 sc->sc_data_iface = uaa->ifaces[data_iface_idx]; 299 id = usbd_get_interface_descriptor(sc->sc_data_iface); 300 301 printf("%s: data interface %d, has %sCM over data, has %sbreak\n", 302 sc->sc_dev.dv_xname, id->bInterfaceNumber, 303 sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ", 304 sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no "); 305 306 /* 307 * Find the bulk endpoints. 308 * Iterate over all endpoints in the data interface and take note. 309 */ 310 uca.bulkin = uca.bulkout = -1; 311 312 for (i = 0; i < id->bNumEndpoints; i++) { 313 ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i); 314 if (ed == NULL) { 315 printf("%s: no endpoint descriptor for %d\n", 316 sc->sc_dev.dv_xname, i); 317 goto bad; 318 } 319 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 320 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 321 uca.bulkin = ed->bEndpointAddress; 322 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 323 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 324 uca.bulkout = ed->bEndpointAddress; 325 } 326 } 327 328 if (uca.bulkin == -1) { 329 printf("%s: Could not find data bulk in\n", 330 sc->sc_dev.dv_xname); 331 goto bad; 332 } 333 if (uca.bulkout == -1) { 334 printf("%s: Could not find data bulk out\n", 335 sc->sc_dev.dv_xname); 336 goto bad; 337 } 338 339 if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) { 340 sc->sc_cm_over_data = 1; 341 } else { 342 if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) { 343 if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE) 344 err = umodem_set_comm_feature(sc, 345 UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED); 346 else 347 err = 0; 348 if (err) { 349 printf("%s: could not set data multiplex mode\n", 350 sc->sc_dev.dv_xname); 351 goto bad; 352 } 353 sc->sc_cm_over_data = 1; 354 } 355 } 356 357 /* 358 * The standard allows for notification messages (to indicate things 359 * like a modem hangup) to come in via an interrupt endpoint 360 * off of the control interface. Iterate over the endpoints on 361 * the control interface and see if there are any interrupt 362 * endpoints; if there are, then register it. 363 */ 364 365 sc->sc_ctl_notify = -1; 366 sc->sc_notify_pipe = NULL; 367 368 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 369 for (i = 0; i < id->bNumEndpoints; i++) { 370 ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i); 371 if (ed == NULL) 372 continue; 373 374 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 375 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 376 printf("%s: status change notification available\n", 377 sc->sc_dev.dv_xname); 378 sc->sc_ctl_notify = ed->bEndpointAddress; 379 } 380 } 381 382 sc->sc_dtr = -1; 383 384 uca.portno = UCOM_UNK_PORTNO; 385 /* bulkin, bulkout set above */ 386 uca.ibufsize = UMODEMIBUFSIZE; 387 uca.obufsize = UMODEMOBUFSIZE; 388 uca.ibufsizepad = UMODEMIBUFSIZE; 389 uca.opkthdrlen = 0; 390 uca.device = sc->sc_udev; 391 uca.iface = sc->sc_data_iface; 392 uca.methods = &umodem_methods; 393 uca.arg = sc; 394 uca.info = NULL; 395 396 DPRINTF(("umodem_attach: sc=%p\n", sc)); 397 sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch); 398 399 return; 400 401 bad: 402 usbd_deactivate(sc->sc_udev); 403 } 404 405 int 406 umodem_open(void *addr, int portno) 407 { 408 struct umodem_softc *sc = addr; 409 int err; 410 411 DPRINTF(("umodem_open: sc=%p\n", sc)); 412 413 if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) { 414 err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify, 415 USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc, 416 &sc->sc_notify_buf, sizeof(sc->sc_notify_buf), 417 umodem_intr, USBD_DEFAULT_INTERVAL); 418 419 if (err) { 420 DPRINTF(("Failed to establish notify pipe: %s\n", 421 usbd_errstr(err))); 422 return EIO; 423 } 424 } 425 426 return 0; 427 } 428 429 void 430 umodem_close(void *addr, int portno) 431 { 432 struct umodem_softc *sc = addr; 433 int err; 434 435 DPRINTF(("umodem_close: sc=%p\n", sc)); 436 437 if (sc->sc_notify_pipe != NULL) { 438 usbd_abort_pipe(sc->sc_notify_pipe); 439 err = usbd_close_pipe(sc->sc_notify_pipe); 440 if (err) 441 printf("%s: close notify pipe failed: %s\n", 442 sc->sc_dev.dv_xname, usbd_errstr(err)); 443 sc->sc_notify_pipe = NULL; 444 } 445 } 446 447 void 448 umodem_intr(struct usbd_xfer *xfer, void *priv, usbd_status status) 449 { 450 struct umodem_softc *sc = priv; 451 u_char mstatus; 452 453 if (usbd_is_dying(sc->sc_udev)) 454 return; 455 456 if (status != USBD_NORMAL_COMPLETION) { 457 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 458 return; 459 DPRINTF(("%s: abnormal status: %s\n", sc->sc_dev.dv_xname, 460 usbd_errstr(status))); 461 usbd_clear_endpoint_stall_async(sc->sc_notify_pipe); 462 return; 463 } 464 465 if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { 466 DPRINTF(("%s: unknown message type (%02x) on notify pipe\n", 467 sc->sc_dev.dv_xname, 468 sc->sc_notify_buf.bmRequestType)); 469 return; 470 } 471 472 switch (sc->sc_notify_buf.bNotification) { 473 case UCDC_N_SERIAL_STATE: 474 /* 475 * Set the serial state in ucom driver based on 476 * the bits from the notify message 477 */ 478 if (UGETW(sc->sc_notify_buf.wLength) != 2) { 479 printf("%s: Invalid notification length! (%d)\n", 480 sc->sc_dev.dv_xname, 481 UGETW(sc->sc_notify_buf.wLength)); 482 break; 483 } 484 DPRINTF(("%s: notify bytes = %02x%02x\n", 485 sc->sc_dev.dv_xname, 486 sc->sc_notify_buf.data[0], 487 sc->sc_notify_buf.data[1])); 488 /* Currently, lsr is always zero. */ 489 sc->sc_lsr = sc->sc_msr = 0; 490 mstatus = sc->sc_notify_buf.data[0]; 491 492 if (ISSET(mstatus, UCDC_N_SERIAL_RI)) 493 sc->sc_msr |= UMSR_RI; 494 if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) 495 sc->sc_msr |= UMSR_DSR; 496 if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) 497 sc->sc_msr |= UMSR_DCD; 498 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 499 break; 500 default: 501 DPRINTF(("%s: unknown notify message: %02x\n", 502 sc->sc_dev.dv_xname, 503 sc->sc_notify_buf.bNotification)); 504 break; 505 } 506 } 507 508 void 509 umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 510 { 511 struct umodem_softc *sc = addr; 512 513 DPRINTF(("umodem_get_status:\n")); 514 515 if (lsr != NULL) 516 *lsr = sc->sc_lsr; 517 if (msr != NULL) 518 *msr = sc->sc_msr; 519 } 520 521 int 522 umodem_param(void *addr, int portno, struct termios *t) 523 { 524 struct umodem_softc *sc = addr; 525 usbd_status err; 526 struct usb_cdc_line_state ls; 527 528 DPRINTF(("umodem_param: sc=%p\n", sc)); 529 530 USETDW(ls.dwDTERate, t->c_ospeed); 531 if (ISSET(t->c_cflag, CSTOPB)) 532 ls.bCharFormat = UCDC_STOP_BIT_2; 533 else 534 ls.bCharFormat = UCDC_STOP_BIT_1; 535 if (ISSET(t->c_cflag, PARENB)) { 536 if (ISSET(t->c_cflag, PARODD)) 537 ls.bParityType = UCDC_PARITY_ODD; 538 else 539 ls.bParityType = UCDC_PARITY_EVEN; 540 } else 541 ls.bParityType = UCDC_PARITY_NONE; 542 switch (ISSET(t->c_cflag, CSIZE)) { 543 case CS5: 544 ls.bDataBits = 5; 545 break; 546 case CS6: 547 ls.bDataBits = 6; 548 break; 549 case CS7: 550 ls.bDataBits = 7; 551 break; 552 case CS8: 553 ls.bDataBits = 8; 554 break; 555 } 556 557 err = umodem_set_line_coding(sc, &ls); 558 if (err) { 559 DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err))); 560 return (1); 561 } 562 return (0); 563 } 564 565 void 566 umodem_dtr(struct umodem_softc *sc, int onoff) 567 { 568 DPRINTF(("umodem_dtr: onoff=%d\n", onoff)); 569 570 if (sc->sc_dtr == onoff) 571 return; 572 sc->sc_dtr = onoff; 573 574 umodem_set_line_state(sc); 575 } 576 577 void 578 umodem_rts(struct umodem_softc *sc, int onoff) 579 { 580 DPRINTF(("umodem_rts: onoff=%d\n", onoff)); 581 582 if (sc->sc_rts == onoff) 583 return; 584 sc->sc_rts = onoff; 585 586 umodem_set_line_state(sc); 587 } 588 589 void 590 umodem_set_line_state(struct umodem_softc *sc) 591 { 592 usb_device_request_t req; 593 int ls; 594 595 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 596 (sc->sc_rts ? UCDC_LINE_RTS : 0); 597 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 598 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 599 USETW(req.wValue, ls); 600 USETW(req.wIndex, sc->sc_ctl_iface_no); 601 USETW(req.wLength, 0); 602 603 (void)usbd_do_request(sc->sc_udev, &req, 0); 604 605 } 606 607 void 608 umodem_break(struct umodem_softc *sc, int onoff) 609 { 610 usb_device_request_t req; 611 612 DPRINTF(("umodem_break: onoff=%d\n", onoff)); 613 614 if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) 615 return; 616 617 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 618 req.bRequest = UCDC_SEND_BREAK; 619 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 620 USETW(req.wIndex, sc->sc_ctl_iface_no); 621 USETW(req.wLength, 0); 622 623 (void)usbd_do_request(sc->sc_udev, &req, 0); 624 } 625 626 void 627 umodem_set(void *addr, int portno, int reg, int onoff) 628 { 629 struct umodem_softc *sc = addr; 630 631 switch (reg) { 632 case UCOM_SET_DTR: 633 umodem_dtr(sc, onoff); 634 break; 635 case UCOM_SET_RTS: 636 umodem_rts(sc, onoff); 637 break; 638 case UCOM_SET_BREAK: 639 umodem_break(sc, onoff); 640 break; 641 default: 642 break; 643 } 644 } 645 646 usbd_status 647 umodem_set_line_coding(struct umodem_softc *sc, 648 struct usb_cdc_line_state *state) 649 { 650 usb_device_request_t req; 651 usbd_status err; 652 653 DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 654 UGETDW(state->dwDTERate), state->bCharFormat, 655 state->bParityType, state->bDataBits)); 656 657 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 658 DPRINTF(("umodem_set_line_coding: already set\n")); 659 return (USBD_NORMAL_COMPLETION); 660 } 661 662 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 663 req.bRequest = UCDC_SET_LINE_CODING; 664 USETW(req.wValue, 0); 665 USETW(req.wIndex, sc->sc_ctl_iface_no); 666 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 667 668 err = usbd_do_request(sc->sc_udev, &req, state); 669 if (err) { 670 DPRINTF(("umodem_set_line_coding: failed, err=%s\n", 671 usbd_errstr(err))); 672 return (err); 673 } 674 675 sc->sc_line_state = *state; 676 677 return (USBD_NORMAL_COMPLETION); 678 } 679 680 usbd_status 681 umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) 682 { 683 usb_device_request_t req; 684 usbd_status err; 685 struct usb_cdc_abstract_state ast; 686 687 DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature, 688 state)); 689 690 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 691 req.bRequest = UCDC_SET_COMM_FEATURE; 692 USETW(req.wValue, feature); 693 USETW(req.wIndex, sc->sc_ctl_iface_no); 694 USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); 695 USETW(ast.wState, state); 696 697 err = usbd_do_request(sc->sc_udev, &req, &ast); 698 if (err) { 699 DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n", 700 feature, usbd_errstr(err))); 701 return (err); 702 } 703 704 return (USBD_NORMAL_COMPLETION); 705 } 706 707 int 708 umodem_detach(struct device *self, int flags) 709 { 710 struct umodem_softc *sc = (struct umodem_softc *)self; 711 int rv = 0; 712 713 DPRINTF(("umodem_detach: sc=%p flags=%d\n", sc, flags)); 714 715 if (sc->sc_notify_pipe != NULL) { 716 usbd_abort_pipe(sc->sc_notify_pipe); 717 usbd_close_pipe(sc->sc_notify_pipe); 718 sc->sc_notify_pipe = NULL; 719 } 720 721 if (sc->sc_subdev != NULL) 722 rv = config_detach(sc->sc_subdev, flags); 723 724 return (rv); 725 } 726