1 /* $OpenBSD: umodem.c,v 1.59 2015/03/14 03:38:50 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/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/device.h> 56 #include <sys/poll.h> 57 58 #include <dev/usb/usb.h> 59 #include <dev/usb/usbcdc.h> 60 61 #include <dev/usb/usbdi.h> 62 #include <dev/usb/usbdevs.h> 63 #include <dev/usb/usb_quirks.h> 64 65 #include <dev/usb/ucomvar.h> 66 67 #ifdef UMODEM_DEBUG 68 #define DPRINTFN(n, x) do { if (umodemdebug > (n)) printf x; } while (0) 69 int umodemdebug = 0; 70 #else 71 #define DPRINTFN(n, x) 72 #endif 73 #define DPRINTF(x) DPRINTFN(0, x) 74 75 /* 76 * These are the maximum number of bytes transferred per frame. 77 * Buffers are this large to deal with high speed wireless devices. 78 * Capped at 1024 as ttymalloc() is limited to this amount. 79 */ 80 #define UMODEMIBUFSIZE 1024 81 #define UMODEMOBUFSIZE 1024 82 83 struct umodem_softc { 84 struct device sc_dev; /* base device */ 85 86 struct usbd_device *sc_udev; /* USB device */ 87 88 int sc_ctl_iface_no; 89 struct usbd_interface *sc_ctl_iface; /* control interface */ 90 struct usbd_interface *sc_data_iface; /* data interface */ 91 92 int sc_cm_cap; /* CM capabilities */ 93 int sc_acm_cap; /* ACM capabilities */ 94 95 int sc_cm_over_data; 96 97 struct usb_cdc_line_state sc_line_state;/* current line state */ 98 u_char sc_dtr; /* current DTR state */ 99 u_char sc_rts; /* current RTS state */ 100 101 struct device *sc_subdev; /* ucom device */ 102 103 u_char sc_opening; /* lock during open */ 104 105 int sc_ctl_notify; /* Notification endpoint */ 106 struct usbd_pipe *sc_notify_pipe; /* Notification pipe */ 107 struct usb_cdc_notification sc_notify_buf; /* Notification structure */ 108 u_char sc_lsr; /* Local status register */ 109 u_char sc_msr; /* Modem status register */ 110 }; 111 112 usbd_status umodem_set_comm_feature(struct umodem_softc *sc, 113 int feature, int state); 114 usbd_status umodem_set_line_coding(struct umodem_softc *sc, 115 struct usb_cdc_line_state *state); 116 117 void umodem_get_status(void *, int portno, u_char *lsr, u_char *msr); 118 void umodem_set(void *, int, int, int); 119 void umodem_dtr(struct umodem_softc *, int); 120 void umodem_rts(struct umodem_softc *, int); 121 void umodem_break(struct umodem_softc *, int); 122 void umodem_set_line_state(struct umodem_softc *); 123 int umodem_param(void *, int, struct termios *); 124 int umodem_ioctl(void *, int, u_long, caddr_t, int, struct proc *); 125 int umodem_open(void *, int portno); 126 void umodem_close(void *, int portno); 127 void umodem_intr(struct usbd_xfer *, void *, usbd_status); 128 129 struct ucom_methods umodem_methods = { 130 umodem_get_status, 131 umodem_set, 132 umodem_param, 133 umodem_ioctl, 134 umodem_open, 135 umodem_close, 136 NULL, 137 NULL, 138 }; 139 140 int umodem_match(struct device *, void *, void *); 141 void umodem_attach(struct device *, struct device *, void *); 142 int umodem_detach(struct device *, int); 143 144 void umodem_get_caps(struct usb_attach_arg *, int, int *, int *, int *); 145 146 struct cfdriver umodem_cd = { 147 NULL, "umodem", DV_DULL 148 }; 149 150 const struct cfattach umodem_ca = { 151 sizeof(struct umodem_softc), umodem_match, umodem_attach, umodem_detach 152 }; 153 154 void 155 umodem_get_caps(struct usb_attach_arg *uaa, int ctl_iface_no, 156 int *data_iface_idx, int *cm_cap, int *acm_cap) 157 { 158 const usb_descriptor_t *desc; 159 const usb_interface_descriptor_t *id; 160 const struct usb_cdc_cm_descriptor *cmd; 161 const struct usb_cdc_acm_descriptor *acmd; 162 const struct usb_cdc_union_descriptor *uniond; 163 struct usbd_desc_iter iter; 164 int current_iface_no = -1; 165 int data_iface_no = -1; 166 int i; 167 168 *data_iface_idx = -1; 169 *cm_cap = *acm_cap = 0; 170 usbd_desc_iter_init(uaa->device, &iter); 171 desc = usbd_desc_iter_next(&iter); 172 while (desc) { 173 if (desc->bDescriptorType == UDESC_INTERFACE) { 174 id = (usb_interface_descriptor_t *)desc; 175 current_iface_no = id->bInterfaceNumber; 176 if (current_iface_no != ctl_iface_no && 177 id->bInterfaceClass == UICLASS_CDC_DATA && 178 id->bInterfaceSubClass == UISUBCLASS_DATA && 179 data_iface_no == -1) 180 data_iface_no = current_iface_no; 181 } 182 if (current_iface_no == ctl_iface_no && 183 desc->bDescriptorType == UDESC_CS_INTERFACE) { 184 switch(desc->bDescriptorSubtype) { 185 case UDESCSUB_CDC_CM: 186 cmd = (struct usb_cdc_cm_descriptor *)desc; 187 *cm_cap = cmd->bmCapabilities; 188 data_iface_no = cmd->bDataInterface; 189 break; 190 case UDESCSUB_CDC_ACM: 191 acmd = (struct usb_cdc_acm_descriptor *)desc; 192 *acm_cap = acmd->bmCapabilities; 193 break; 194 case UDESCSUB_CDC_UNION: 195 uniond = 196 (struct usb_cdc_union_descriptor *)desc; 197 data_iface_no = uniond->bSlaveInterface[0]; 198 break; 199 } 200 } 201 desc = usbd_desc_iter_next(&iter); 202 } 203 204 /* 205 * If we got a data interface number, make sure the corresponding 206 * interface exists and is not already claimed. 207 */ 208 if (data_iface_no != -1) { 209 for (i = 0; i < uaa->nifaces; i++) { 210 id = usbd_get_interface_descriptor(uaa->ifaces[i]); 211 212 if (id == NULL) 213 continue; 214 215 if (id->bInterfaceNumber == data_iface_no) { 216 if (!usbd_iface_claimed(uaa->device, i)) 217 *data_iface_idx = i; 218 break; 219 } 220 } 221 } 222 } 223 224 int 225 umodem_match(struct device *parent, void *match, void *aux) 226 { 227 struct usb_attach_arg *uaa = aux; 228 usb_interface_descriptor_t *id; 229 usb_device_descriptor_t *dd; 230 int data_iface_idx, cm_cap, acm_cap, ret = UMATCH_NONE; 231 232 if (uaa->iface == NULL) 233 return (ret); 234 235 id = usbd_get_interface_descriptor(uaa->iface); 236 dd = usbd_get_device_descriptor(uaa->device); 237 if (id == NULL || dd == NULL) 238 return (ret); 239 240 ret = UMATCH_NONE; 241 242 /* protocol of 0 so won't match the test below */ 243 if (UGETW(dd->idVendor) == USB_VENDOR_ATMEL && 244 UGETW(dd->idProduct) == USB_PRODUCT_ATMEL_AT91_CDC_ACM) 245 ret = UMATCH_VENDOR_PRODUCT; 246 247 if (UGETW(dd->idVendor) == USB_VENDOR_KYOCERA && 248 UGETW(dd->idProduct) == USB_PRODUCT_KYOCERA_AHK3001V && 249 id->bInterfaceNumber == 0) 250 ret = UMATCH_VENDOR_PRODUCT; 251 252 if (UGETW(dd->idVendor) == USB_VENDOR_ARDUINO && 253 UGETW(dd->idProduct) == USB_PRODUCT_ARDUINO_LEONARDO) 254 ret = UMATCH_VENDOR_PRODUCT; 255 256 if (ret == UMATCH_NONE && 257 id->bInterfaceClass == UICLASS_CDC && 258 id->bInterfaceSubClass == UISUBCLASS_ABSTRACT_CONTROL_MODEL && 259 id->bInterfaceProtocol == UIPROTO_CDC_AT) 260 ret = UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO; 261 262 if (ret == UMATCH_NONE) 263 return (ret); 264 265 /* umodem doesn't support devices without a data iface */ 266 umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_idx, 267 &cm_cap, &acm_cap); 268 if (data_iface_idx == -1) 269 ret = UMATCH_NONE; 270 271 return (ret); 272 } 273 274 void 275 umodem_attach(struct device *parent, struct device *self, void *aux) 276 { 277 struct umodem_softc *sc = (struct umodem_softc *)self; 278 struct usb_attach_arg *uaa = aux; 279 struct usbd_device *dev = uaa->device; 280 usb_interface_descriptor_t *id; 281 usb_endpoint_descriptor_t *ed; 282 usbd_status err; 283 int data_iface_idx = -1; 284 int i; 285 struct ucom_attach_args uca; 286 287 sc->sc_udev = dev; 288 sc->sc_ctl_iface = uaa->iface; 289 290 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 291 //printf("%s: iclass %d/%d\n", sc->sc_dev.dv_xname, 292 // id->bInterfaceClass, id->bInterfaceSubClass); 293 sc->sc_ctl_iface_no = id->bInterfaceNumber; 294 295 /* Get the capabilities. */ 296 umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_idx, 297 &sc->sc_cm_cap, &sc->sc_acm_cap); 298 299 usbd_claim_iface(sc->sc_udev, data_iface_idx); 300 sc->sc_data_iface = uaa->ifaces[data_iface_idx]; 301 id = usbd_get_interface_descriptor(sc->sc_data_iface); 302 303 printf("%s: data interface %d, has %sCM over data, has %sbreak\n", 304 sc->sc_dev.dv_xname, id->bInterfaceNumber, 305 sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ", 306 sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no "); 307 308 /* 309 * Find the bulk endpoints. 310 * Iterate over all endpoints in the data interface and take note. 311 */ 312 uca.bulkin = uca.bulkout = -1; 313 314 for (i = 0; i < id->bNumEndpoints; i++) { 315 ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i); 316 if (ed == NULL) { 317 printf("%s: no endpoint descriptor for %d\n", 318 sc->sc_dev.dv_xname, i); 319 goto bad; 320 } 321 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 322 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 323 uca.bulkin = ed->bEndpointAddress; 324 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 325 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 326 uca.bulkout = ed->bEndpointAddress; 327 } 328 } 329 330 if (uca.bulkin == -1) { 331 printf("%s: Could not find data bulk in\n", 332 sc->sc_dev.dv_xname); 333 goto bad; 334 } 335 if (uca.bulkout == -1) { 336 printf("%s: Could not find data bulk out\n", 337 sc->sc_dev.dv_xname); 338 goto bad; 339 } 340 341 if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) { 342 sc->sc_cm_over_data = 1; 343 } else { 344 if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) { 345 if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE) 346 err = umodem_set_comm_feature(sc, 347 UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED); 348 else 349 err = 0; 350 if (err) { 351 printf("%s: could not set data multiplex mode\n", 352 sc->sc_dev.dv_xname); 353 goto bad; 354 } 355 sc->sc_cm_over_data = 1; 356 } 357 } 358 359 /* 360 * The standard allows for notification messages (to indicate things 361 * like a modem hangup) to come in via an interrupt endpoint 362 * off of the control interface. Iterate over the endpoints on 363 * the control interface and see if there are any interrupt 364 * endpoints; if there are, then register it. 365 */ 366 367 sc->sc_ctl_notify = -1; 368 sc->sc_notify_pipe = NULL; 369 370 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 371 for (i = 0; i < id->bNumEndpoints; i++) { 372 ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i); 373 if (ed == NULL) 374 continue; 375 376 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 377 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 378 printf("%s: status change notification available\n", 379 sc->sc_dev.dv_xname); 380 sc->sc_ctl_notify = ed->bEndpointAddress; 381 } 382 } 383 384 sc->sc_dtr = -1; 385 386 uca.portno = UCOM_UNK_PORTNO; 387 /* bulkin, bulkout set above */ 388 uca.ibufsize = UMODEMIBUFSIZE; 389 uca.obufsize = UMODEMOBUFSIZE; 390 uca.ibufsizepad = UMODEMIBUFSIZE; 391 uca.opkthdrlen = 0; 392 uca.device = sc->sc_udev; 393 uca.iface = sc->sc_data_iface; 394 uca.methods = &umodem_methods; 395 uca.arg = sc; 396 uca.info = NULL; 397 398 DPRINTF(("umodem_attach: sc=%p\n", sc)); 399 sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch); 400 401 return; 402 403 bad: 404 usbd_deactivate(sc->sc_udev); 405 } 406 407 int 408 umodem_open(void *addr, int portno) 409 { 410 struct umodem_softc *sc = addr; 411 int err; 412 413 DPRINTF(("umodem_open: sc=%p\n", sc)); 414 415 if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) { 416 err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify, 417 USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc, 418 &sc->sc_notify_buf, sizeof(sc->sc_notify_buf), 419 umodem_intr, USBD_DEFAULT_INTERVAL); 420 421 if (err) { 422 DPRINTF(("Failed to establish notify pipe: %s\n", 423 usbd_errstr(err))); 424 return EIO; 425 } 426 } 427 428 return 0; 429 } 430 431 void 432 umodem_close(void *addr, int portno) 433 { 434 struct umodem_softc *sc = addr; 435 int err; 436 437 DPRINTF(("umodem_close: sc=%p\n", sc)); 438 439 if (sc->sc_notify_pipe != NULL) { 440 usbd_abort_pipe(sc->sc_notify_pipe); 441 err = usbd_close_pipe(sc->sc_notify_pipe); 442 if (err) 443 printf("%s: close notify pipe failed: %s\n", 444 sc->sc_dev.dv_xname, usbd_errstr(err)); 445 sc->sc_notify_pipe = NULL; 446 } 447 } 448 449 void 450 umodem_intr(struct usbd_xfer *xfer, void *priv, usbd_status status) 451 { 452 struct umodem_softc *sc = priv; 453 u_char mstatus; 454 455 if (usbd_is_dying(sc->sc_udev)) 456 return; 457 458 if (status != USBD_NORMAL_COMPLETION) { 459 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 460 return; 461 DPRINTF(("%s: abnormal status: %s\n", sc->sc_dev.dv_xname, 462 usbd_errstr(status))); 463 usbd_clear_endpoint_stall_async(sc->sc_notify_pipe); 464 return; 465 } 466 467 if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { 468 DPRINTF(("%s: unknown message type (%02x) on notify pipe\n", 469 sc->sc_dev.dv_xname, 470 sc->sc_notify_buf.bmRequestType)); 471 return; 472 } 473 474 switch (sc->sc_notify_buf.bNotification) { 475 case UCDC_N_SERIAL_STATE: 476 /* 477 * Set the serial state in ucom driver based on 478 * the bits from the notify message 479 */ 480 if (UGETW(sc->sc_notify_buf.wLength) != 2) { 481 printf("%s: Invalid notification length! (%d)\n", 482 sc->sc_dev.dv_xname, 483 UGETW(sc->sc_notify_buf.wLength)); 484 break; 485 } 486 DPRINTF(("%s: notify bytes = %02x%02x\n", 487 sc->sc_dev.dv_xname, 488 sc->sc_notify_buf.data[0], 489 sc->sc_notify_buf.data[1])); 490 /* Currently, lsr is always zero. */ 491 sc->sc_lsr = sc->sc_msr = 0; 492 mstatus = sc->sc_notify_buf.data[0]; 493 494 if (ISSET(mstatus, UCDC_N_SERIAL_RI)) 495 sc->sc_msr |= UMSR_RI; 496 if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) 497 sc->sc_msr |= UMSR_DSR; 498 if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) 499 sc->sc_msr |= UMSR_DCD; 500 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 501 break; 502 default: 503 DPRINTF(("%s: unknown notify message: %02x\n", 504 sc->sc_dev.dv_xname, 505 sc->sc_notify_buf.bNotification)); 506 break; 507 } 508 } 509 510 void 511 umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 512 { 513 struct umodem_softc *sc = addr; 514 515 DPRINTF(("umodem_get_status:\n")); 516 517 if (lsr != NULL) 518 *lsr = sc->sc_lsr; 519 if (msr != NULL) 520 *msr = sc->sc_msr; 521 } 522 523 int 524 umodem_param(void *addr, int portno, struct termios *t) 525 { 526 struct umodem_softc *sc = addr; 527 usbd_status err; 528 struct usb_cdc_line_state ls; 529 530 DPRINTF(("umodem_param: sc=%p\n", sc)); 531 532 USETDW(ls.dwDTERate, t->c_ospeed); 533 if (ISSET(t->c_cflag, CSTOPB)) 534 ls.bCharFormat = UCDC_STOP_BIT_2; 535 else 536 ls.bCharFormat = UCDC_STOP_BIT_1; 537 if (ISSET(t->c_cflag, PARENB)) { 538 if (ISSET(t->c_cflag, PARODD)) 539 ls.bParityType = UCDC_PARITY_ODD; 540 else 541 ls.bParityType = UCDC_PARITY_EVEN; 542 } else 543 ls.bParityType = UCDC_PARITY_NONE; 544 switch (ISSET(t->c_cflag, CSIZE)) { 545 case CS5: 546 ls.bDataBits = 5; 547 break; 548 case CS6: 549 ls.bDataBits = 6; 550 break; 551 case CS7: 552 ls.bDataBits = 7; 553 break; 554 case CS8: 555 ls.bDataBits = 8; 556 break; 557 } 558 559 err = umodem_set_line_coding(sc, &ls); 560 if (err) { 561 DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err))); 562 return (1); 563 } 564 return (0); 565 } 566 567 int 568 umodem_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag, 569 struct proc *p) 570 { 571 struct umodem_softc *sc = addr; 572 int error = 0; 573 574 if (usbd_is_dying(sc->sc_udev)) 575 return (EIO); 576 577 DPRINTF(("umodem_ioctl: cmd=0x%08lx\n", cmd)); 578 579 switch (cmd) { 580 case USB_GET_CM_OVER_DATA: 581 *(int *)data = sc->sc_cm_over_data; 582 break; 583 584 case USB_SET_CM_OVER_DATA: 585 if (*(int *)data != sc->sc_cm_over_data) { 586 /* XXX change it */ 587 } 588 break; 589 590 default: 591 DPRINTF(("umodem_ioctl: unknown\n")); 592 error = ENOTTY; 593 break; 594 } 595 596 return (error); 597 } 598 599 void 600 umodem_dtr(struct umodem_softc *sc, int onoff) 601 { 602 DPRINTF(("umodem_dtr: onoff=%d\n", onoff)); 603 604 if (sc->sc_dtr == onoff) 605 return; 606 sc->sc_dtr = onoff; 607 608 umodem_set_line_state(sc); 609 } 610 611 void 612 umodem_rts(struct umodem_softc *sc, int onoff) 613 { 614 DPRINTF(("umodem_rts: onoff=%d\n", onoff)); 615 616 if (sc->sc_rts == onoff) 617 return; 618 sc->sc_rts = onoff; 619 620 umodem_set_line_state(sc); 621 } 622 623 void 624 umodem_set_line_state(struct umodem_softc *sc) 625 { 626 usb_device_request_t req; 627 int ls; 628 629 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 630 (sc->sc_rts ? UCDC_LINE_RTS : 0); 631 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 632 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 633 USETW(req.wValue, ls); 634 USETW(req.wIndex, sc->sc_ctl_iface_no); 635 USETW(req.wLength, 0); 636 637 (void)usbd_do_request(sc->sc_udev, &req, 0); 638 639 } 640 641 void 642 umodem_break(struct umodem_softc *sc, int onoff) 643 { 644 usb_device_request_t req; 645 646 DPRINTF(("umodem_break: onoff=%d\n", onoff)); 647 648 if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) 649 return; 650 651 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 652 req.bRequest = UCDC_SEND_BREAK; 653 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 654 USETW(req.wIndex, sc->sc_ctl_iface_no); 655 USETW(req.wLength, 0); 656 657 (void)usbd_do_request(sc->sc_udev, &req, 0); 658 } 659 660 void 661 umodem_set(void *addr, int portno, int reg, int onoff) 662 { 663 struct umodem_softc *sc = addr; 664 665 switch (reg) { 666 case UCOM_SET_DTR: 667 umodem_dtr(sc, onoff); 668 break; 669 case UCOM_SET_RTS: 670 umodem_rts(sc, onoff); 671 break; 672 case UCOM_SET_BREAK: 673 umodem_break(sc, onoff); 674 break; 675 default: 676 break; 677 } 678 } 679 680 usbd_status 681 umodem_set_line_coding(struct umodem_softc *sc, 682 struct usb_cdc_line_state *state) 683 { 684 usb_device_request_t req; 685 usbd_status err; 686 687 DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 688 UGETDW(state->dwDTERate), state->bCharFormat, 689 state->bParityType, state->bDataBits)); 690 691 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 692 DPRINTF(("umodem_set_line_coding: already set\n")); 693 return (USBD_NORMAL_COMPLETION); 694 } 695 696 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 697 req.bRequest = UCDC_SET_LINE_CODING; 698 USETW(req.wValue, 0); 699 USETW(req.wIndex, sc->sc_ctl_iface_no); 700 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 701 702 err = usbd_do_request(sc->sc_udev, &req, state); 703 if (err) { 704 DPRINTF(("umodem_set_line_coding: failed, err=%s\n", 705 usbd_errstr(err))); 706 return (err); 707 } 708 709 sc->sc_line_state = *state; 710 711 return (USBD_NORMAL_COMPLETION); 712 } 713 714 usbd_status 715 umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) 716 { 717 usb_device_request_t req; 718 usbd_status err; 719 struct usb_cdc_abstract_state ast; 720 721 DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature, 722 state)); 723 724 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 725 req.bRequest = UCDC_SET_COMM_FEATURE; 726 USETW(req.wValue, feature); 727 USETW(req.wIndex, sc->sc_ctl_iface_no); 728 USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); 729 USETW(ast.wState, state); 730 731 err = usbd_do_request(sc->sc_udev, &req, &ast); 732 if (err) { 733 DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n", 734 feature, usbd_errstr(err))); 735 return (err); 736 } 737 738 return (USBD_NORMAL_COMPLETION); 739 } 740 741 int 742 umodem_detach(struct device *self, int flags) 743 { 744 struct umodem_softc *sc = (struct umodem_softc *)self; 745 int rv = 0; 746 747 DPRINTF(("umodem_detach: sc=%p flags=%d\n", sc, flags)); 748 749 if (sc->sc_notify_pipe != NULL) { 750 usbd_abort_pipe(sc->sc_notify_pipe); 751 usbd_close_pipe(sc->sc_notify_pipe); 752 sc->sc_notify_pipe = NULL; 753 } 754 755 if (sc->sc_subdev != NULL) 756 rv = config_detach(sc->sc_subdev, flags); 757 758 return (rv); 759 } 760