1 /* $OpenBSD: umodem.c,v 1.57 2014/07/12 20:26:33 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/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/usbdi_util.h> 63 #include <dev/usb/usbdevs.h> 64 #include <dev/usb/usb_quirks.h> 65 66 #include <dev/usb/ucomvar.h> 67 68 #ifdef UMODEM_DEBUG 69 #define DPRINTFN(n, x) do { if (umodemdebug > (n)) printf x; } while (0) 70 int umodemdebug = 0; 71 #else 72 #define DPRINTFN(n, x) 73 #endif 74 #define DPRINTF(x) DPRINTFN(0, x) 75 76 /* 77 * These are the maximum number of bytes transferred per frame. 78 * Buffers are this large to deal with high speed wireless devices. 79 * Capped at 1024 as ttymalloc() is limited to this amount. 80 */ 81 #define UMODEMIBUFSIZE 1024 82 #define UMODEMOBUFSIZE 1024 83 84 struct umodem_softc { 85 struct device sc_dev; /* base device */ 86 87 struct usbd_device *sc_udev; /* USB device */ 88 89 int sc_ctl_iface_no; 90 struct usbd_interface *sc_ctl_iface; /* control interface */ 91 struct usbd_interface *sc_data_iface; /* data interface */ 92 93 int sc_cm_cap; /* CM capabilities */ 94 int sc_acm_cap; /* ACM capabilities */ 95 96 int sc_cm_over_data; 97 98 struct usb_cdc_line_state sc_line_state;/* current line state */ 99 u_char sc_dtr; /* current DTR state */ 100 u_char sc_rts; /* current RTS state */ 101 102 struct device *sc_subdev; /* ucom device */ 103 104 u_char sc_opening; /* lock during open */ 105 106 int sc_ctl_notify; /* Notification endpoint */ 107 struct usbd_pipe *sc_notify_pipe; /* Notification pipe */ 108 struct usb_cdc_notification sc_notify_buf; /* Notification structure */ 109 u_char sc_lsr; /* Local status register */ 110 u_char sc_msr; /* Modem status register */ 111 }; 112 113 usbd_status umodem_set_comm_feature(struct umodem_softc *sc, 114 int feature, int state); 115 usbd_status umodem_set_line_coding(struct umodem_softc *sc, 116 struct usb_cdc_line_state *state); 117 118 void umodem_get_status(void *, int portno, u_char *lsr, u_char *msr); 119 void umodem_set(void *, int, int, int); 120 void umodem_dtr(struct umodem_softc *, int); 121 void umodem_rts(struct umodem_softc *, int); 122 void umodem_break(struct umodem_softc *, int); 123 void umodem_set_line_state(struct umodem_softc *); 124 int umodem_param(void *, int, struct termios *); 125 int umodem_ioctl(void *, int, u_long, caddr_t, int, struct proc *); 126 int umodem_open(void *, int portno); 127 void umodem_close(void *, int portno); 128 void umodem_intr(struct usbd_xfer *, void *, usbd_status); 129 130 struct ucom_methods umodem_methods = { 131 umodem_get_status, 132 umodem_set, 133 umodem_param, 134 umodem_ioctl, 135 umodem_open, 136 umodem_close, 137 NULL, 138 NULL, 139 }; 140 141 int umodem_match(struct device *, void *, void *); 142 void umodem_attach(struct device *, struct device *, void *); 143 int umodem_detach(struct device *, int); 144 145 void umodem_get_caps(struct usb_attach_arg *, int, int *, int *, int *); 146 147 struct cfdriver umodem_cd = { 148 NULL, "umodem", DV_DULL 149 }; 150 151 const struct cfattach umodem_ca = { 152 sizeof(struct umodem_softc), umodem_match, umodem_attach, umodem_detach 153 }; 154 155 void 156 umodem_get_caps(struct usb_attach_arg *uaa, int ctl_iface_no, 157 int *data_iface_idx, int *cm_cap, int *acm_cap) 158 { 159 const usb_descriptor_t *desc; 160 const usb_interface_descriptor_t *id; 161 const struct usb_cdc_cm_descriptor *cmd; 162 const struct usb_cdc_acm_descriptor *acmd; 163 const struct usb_cdc_union_descriptor *uniond; 164 struct usbd_desc_iter iter; 165 int current_iface_no = -1; 166 int data_iface_no = -1; 167 int i; 168 169 *data_iface_idx = -1; 170 *cm_cap = *acm_cap = 0; 171 usbd_desc_iter_init(uaa->device, &iter); 172 desc = usbd_desc_iter_next(&iter); 173 while (desc) { 174 if (desc->bDescriptorType == UDESC_INTERFACE) { 175 id = (usb_interface_descriptor_t *)desc; 176 current_iface_no = id->bInterfaceNumber; 177 if (current_iface_no != ctl_iface_no && 178 id->bInterfaceClass == UICLASS_CDC_DATA && 179 id->bInterfaceSubClass == UISUBCLASS_DATA && 180 data_iface_no == -1) 181 data_iface_no = current_iface_no; 182 } 183 if (current_iface_no == ctl_iface_no && 184 desc->bDescriptorType == UDESC_CS_INTERFACE) { 185 switch(desc->bDescriptorSubtype) { 186 case UDESCSUB_CDC_CM: 187 cmd = (struct usb_cdc_cm_descriptor *)desc; 188 *cm_cap = cmd->bmCapabilities; 189 data_iface_no = cmd->bDataInterface; 190 break; 191 case UDESCSUB_CDC_ACM: 192 acmd = (struct usb_cdc_acm_descriptor *)desc; 193 *acm_cap = acmd->bmCapabilities; 194 break; 195 case UDESCSUB_CDC_UNION: 196 uniond = 197 (struct usb_cdc_union_descriptor *)desc; 198 data_iface_no = uniond->bSlaveInterface[0]; 199 break; 200 } 201 } 202 desc = usbd_desc_iter_next(&iter); 203 } 204 205 /* 206 * If we got a data interface number, make sure the corresponding 207 * interface exists and is not already claimed. 208 */ 209 if (data_iface_no != -1) { 210 for (i = 0; i < uaa->nifaces; i++) { 211 id = usbd_get_interface_descriptor(uaa->ifaces[i]); 212 213 if (id == NULL) 214 continue; 215 216 if (id->bInterfaceNumber == data_iface_no) { 217 if (!usbd_iface_claimed(uaa->device, i)) 218 *data_iface_idx = i; 219 break; 220 } 221 } 222 } 223 } 224 225 int 226 umodem_match(struct device *parent, void *match, void *aux) 227 { 228 struct usb_attach_arg *uaa = aux; 229 usb_interface_descriptor_t *id; 230 usb_device_descriptor_t *dd; 231 int data_iface_idx, cm_cap, acm_cap, ret = UMATCH_NONE; 232 233 if (uaa->iface == NULL) 234 return (ret); 235 236 id = usbd_get_interface_descriptor(uaa->iface); 237 dd = usbd_get_device_descriptor(uaa->device); 238 if (id == NULL || dd == NULL) 239 return (ret); 240 241 ret = UMATCH_NONE; 242 243 /* protocol of 0 so won't match the test below */ 244 if (UGETW(dd->idVendor) == USB_VENDOR_ATMEL && 245 UGETW(dd->idProduct) == USB_PRODUCT_ATMEL_AT91_CDC_ACM) 246 ret = UMATCH_VENDOR_PRODUCT; 247 248 if (UGETW(dd->idVendor) == USB_VENDOR_KYOCERA && 249 UGETW(dd->idProduct) == USB_PRODUCT_KYOCERA_AHK3001V && 250 id->bInterfaceNumber == 0) 251 ret = UMATCH_VENDOR_PRODUCT; 252 253 if (ret == UMATCH_NONE && 254 id->bInterfaceClass == UICLASS_CDC && 255 id->bInterfaceSubClass == UISUBCLASS_ABSTRACT_CONTROL_MODEL && 256 id->bInterfaceProtocol == UIPROTO_CDC_AT) 257 ret = UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO; 258 259 if (ret == UMATCH_NONE) 260 return (ret); 261 262 /* umodem doesn't support devices without a data iface */ 263 umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_idx, 264 &cm_cap, &acm_cap); 265 if (data_iface_idx == -1) 266 ret = UMATCH_NONE; 267 268 return (ret); 269 } 270 271 void 272 umodem_attach(struct device *parent, struct device *self, void *aux) 273 { 274 struct umodem_softc *sc = (struct umodem_softc *)self; 275 struct usb_attach_arg *uaa = aux; 276 struct usbd_device *dev = uaa->device; 277 usb_interface_descriptor_t *id; 278 usb_endpoint_descriptor_t *ed; 279 usbd_status err; 280 int data_iface_idx = -1; 281 int i; 282 struct ucom_attach_args uca; 283 284 sc->sc_udev = dev; 285 sc->sc_ctl_iface = uaa->iface; 286 287 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 288 //printf("%s: iclass %d/%d\n", sc->sc_dev.dv_xname, 289 // id->bInterfaceClass, id->bInterfaceSubClass); 290 sc->sc_ctl_iface_no = id->bInterfaceNumber; 291 292 /* Get the capabilities. */ 293 umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_idx, 294 &sc->sc_cm_cap, &sc->sc_acm_cap); 295 296 usbd_claim_iface(sc->sc_udev, data_iface_idx); 297 sc->sc_data_iface = uaa->ifaces[data_iface_idx]; 298 id = usbd_get_interface_descriptor(sc->sc_data_iface); 299 300 printf("%s: data interface %d, has %sCM over data, has %sbreak\n", 301 sc->sc_dev.dv_xname, id->bInterfaceNumber, 302 sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ", 303 sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no "); 304 305 /* 306 * Find the bulk endpoints. 307 * Iterate over all endpoints in the data interface and take note. 308 */ 309 uca.bulkin = uca.bulkout = -1; 310 311 for (i = 0; i < id->bNumEndpoints; i++) { 312 ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i); 313 if (ed == NULL) { 314 printf("%s: no endpoint descriptor for %d\n", 315 sc->sc_dev.dv_xname, i); 316 goto bad; 317 } 318 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 319 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 320 uca.bulkin = ed->bEndpointAddress; 321 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 322 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 323 uca.bulkout = ed->bEndpointAddress; 324 } 325 } 326 327 if (uca.bulkin == -1) { 328 printf("%s: Could not find data bulk in\n", 329 sc->sc_dev.dv_xname); 330 goto bad; 331 } 332 if (uca.bulkout == -1) { 333 printf("%s: Could not find data bulk out\n", 334 sc->sc_dev.dv_xname); 335 goto bad; 336 } 337 338 if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) { 339 sc->sc_cm_over_data = 1; 340 } else { 341 if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) { 342 if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE) 343 err = umodem_set_comm_feature(sc, 344 UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED); 345 else 346 err = 0; 347 if (err) { 348 printf("%s: could not set data multiplex mode\n", 349 sc->sc_dev.dv_xname); 350 goto bad; 351 } 352 sc->sc_cm_over_data = 1; 353 } 354 } 355 356 /* 357 * The standard allows for notification messages (to indicate things 358 * like a modem hangup) to come in via an interrupt endpoint 359 * off of the control interface. Iterate over the endpoints on 360 * the control interface and see if there are any interrupt 361 * endpoints; if there are, then register it. 362 */ 363 364 sc->sc_ctl_notify = -1; 365 sc->sc_notify_pipe = NULL; 366 367 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 368 for (i = 0; i < id->bNumEndpoints; i++) { 369 ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i); 370 if (ed == NULL) 371 continue; 372 373 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 374 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 375 printf("%s: status change notification available\n", 376 sc->sc_dev.dv_xname); 377 sc->sc_ctl_notify = ed->bEndpointAddress; 378 } 379 } 380 381 sc->sc_dtr = -1; 382 383 uca.portno = UCOM_UNK_PORTNO; 384 /* bulkin, bulkout set above */ 385 uca.ibufsize = UMODEMIBUFSIZE; 386 uca.obufsize = UMODEMOBUFSIZE; 387 uca.ibufsizepad = UMODEMIBUFSIZE; 388 uca.opkthdrlen = 0; 389 uca.device = sc->sc_udev; 390 uca.iface = sc->sc_data_iface; 391 uca.methods = &umodem_methods; 392 uca.arg = sc; 393 uca.info = NULL; 394 395 DPRINTF(("umodem_attach: sc=%p\n", sc)); 396 sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch); 397 398 return; 399 400 bad: 401 usbd_deactivate(sc->sc_udev); 402 } 403 404 int 405 umodem_open(void *addr, int portno) 406 { 407 struct umodem_softc *sc = addr; 408 int err; 409 410 DPRINTF(("umodem_open: sc=%p\n", sc)); 411 412 if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) { 413 err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify, 414 USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc, 415 &sc->sc_notify_buf, sizeof(sc->sc_notify_buf), 416 umodem_intr, USBD_DEFAULT_INTERVAL); 417 418 if (err) { 419 DPRINTF(("Failed to establish notify pipe: %s\n", 420 usbd_errstr(err))); 421 return EIO; 422 } 423 } 424 425 return 0; 426 } 427 428 void 429 umodem_close(void *addr, int portno) 430 { 431 struct umodem_softc *sc = addr; 432 int err; 433 434 DPRINTF(("umodem_close: sc=%p\n", sc)); 435 436 if (sc->sc_notify_pipe != NULL) { 437 usbd_abort_pipe(sc->sc_notify_pipe); 438 err = usbd_close_pipe(sc->sc_notify_pipe); 439 if (err) 440 printf("%s: close notify pipe failed: %s\n", 441 sc->sc_dev.dv_xname, usbd_errstr(err)); 442 sc->sc_notify_pipe = NULL; 443 } 444 } 445 446 void 447 umodem_intr(struct usbd_xfer *xfer, void *priv, usbd_status status) 448 { 449 struct umodem_softc *sc = priv; 450 u_char mstatus; 451 452 if (usbd_is_dying(sc->sc_udev)) 453 return; 454 455 if (status != USBD_NORMAL_COMPLETION) { 456 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 457 return; 458 DPRINTF(("%s: abnormal status: %s\n", sc->sc_dev.dv_xname, 459 usbd_errstr(status))); 460 usbd_clear_endpoint_stall_async(sc->sc_notify_pipe); 461 return; 462 } 463 464 if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { 465 DPRINTF(("%s: unknown message type (%02x) on notify pipe\n", 466 sc->sc_dev.dv_xname, 467 sc->sc_notify_buf.bmRequestType)); 468 return; 469 } 470 471 switch (sc->sc_notify_buf.bNotification) { 472 case UCDC_N_SERIAL_STATE: 473 /* 474 * Set the serial state in ucom driver based on 475 * the bits from the notify message 476 */ 477 if (UGETW(sc->sc_notify_buf.wLength) != 2) { 478 printf("%s: Invalid notification length! (%d)\n", 479 sc->sc_dev.dv_xname, 480 UGETW(sc->sc_notify_buf.wLength)); 481 break; 482 } 483 DPRINTF(("%s: notify bytes = %02x%02x\n", 484 sc->sc_dev.dv_xname, 485 sc->sc_notify_buf.data[0], 486 sc->sc_notify_buf.data[1])); 487 /* Currently, lsr is always zero. */ 488 sc->sc_lsr = sc->sc_msr = 0; 489 mstatus = sc->sc_notify_buf.data[0]; 490 491 if (ISSET(mstatus, UCDC_N_SERIAL_RI)) 492 sc->sc_msr |= UMSR_RI; 493 if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) 494 sc->sc_msr |= UMSR_DSR; 495 if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) 496 sc->sc_msr |= UMSR_DCD; 497 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 498 break; 499 default: 500 DPRINTF(("%s: unknown notify message: %02x\n", 501 sc->sc_dev.dv_xname, 502 sc->sc_notify_buf.bNotification)); 503 break; 504 } 505 } 506 507 void 508 umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 509 { 510 struct umodem_softc *sc = addr; 511 512 DPRINTF(("umodem_get_status:\n")); 513 514 if (lsr != NULL) 515 *lsr = sc->sc_lsr; 516 if (msr != NULL) 517 *msr = sc->sc_msr; 518 } 519 520 int 521 umodem_param(void *addr, int portno, struct termios *t) 522 { 523 struct umodem_softc *sc = addr; 524 usbd_status err; 525 struct usb_cdc_line_state ls; 526 527 DPRINTF(("umodem_param: sc=%p\n", sc)); 528 529 USETDW(ls.dwDTERate, t->c_ospeed); 530 if (ISSET(t->c_cflag, CSTOPB)) 531 ls.bCharFormat = UCDC_STOP_BIT_2; 532 else 533 ls.bCharFormat = UCDC_STOP_BIT_1; 534 if (ISSET(t->c_cflag, PARENB)) { 535 if (ISSET(t->c_cflag, PARODD)) 536 ls.bParityType = UCDC_PARITY_ODD; 537 else 538 ls.bParityType = UCDC_PARITY_EVEN; 539 } else 540 ls.bParityType = UCDC_PARITY_NONE; 541 switch (ISSET(t->c_cflag, CSIZE)) { 542 case CS5: 543 ls.bDataBits = 5; 544 break; 545 case CS6: 546 ls.bDataBits = 6; 547 break; 548 case CS7: 549 ls.bDataBits = 7; 550 break; 551 case CS8: 552 ls.bDataBits = 8; 553 break; 554 } 555 556 err = umodem_set_line_coding(sc, &ls); 557 if (err) { 558 DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err))); 559 return (1); 560 } 561 return (0); 562 } 563 564 int 565 umodem_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag, 566 struct proc *p) 567 { 568 struct umodem_softc *sc = addr; 569 int error = 0; 570 571 if (usbd_is_dying(sc->sc_udev)) 572 return (EIO); 573 574 DPRINTF(("umodem_ioctl: cmd=0x%08lx\n", cmd)); 575 576 switch (cmd) { 577 case USB_GET_CM_OVER_DATA: 578 *(int *)data = sc->sc_cm_over_data; 579 break; 580 581 case USB_SET_CM_OVER_DATA: 582 if (*(int *)data != sc->sc_cm_over_data) { 583 /* XXX change it */ 584 } 585 break; 586 587 default: 588 DPRINTF(("umodem_ioctl: unknown\n")); 589 error = ENOTTY; 590 break; 591 } 592 593 return (error); 594 } 595 596 void 597 umodem_dtr(struct umodem_softc *sc, int onoff) 598 { 599 DPRINTF(("umodem_dtr: onoff=%d\n", onoff)); 600 601 if (sc->sc_dtr == onoff) 602 return; 603 sc->sc_dtr = onoff; 604 605 umodem_set_line_state(sc); 606 } 607 608 void 609 umodem_rts(struct umodem_softc *sc, int onoff) 610 { 611 DPRINTF(("umodem_rts: onoff=%d\n", onoff)); 612 613 if (sc->sc_rts == onoff) 614 return; 615 sc->sc_rts = onoff; 616 617 umodem_set_line_state(sc); 618 } 619 620 void 621 umodem_set_line_state(struct umodem_softc *sc) 622 { 623 usb_device_request_t req; 624 int ls; 625 626 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 627 (sc->sc_rts ? UCDC_LINE_RTS : 0); 628 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 629 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 630 USETW(req.wValue, ls); 631 USETW(req.wIndex, sc->sc_ctl_iface_no); 632 USETW(req.wLength, 0); 633 634 (void)usbd_do_request(sc->sc_udev, &req, 0); 635 636 } 637 638 void 639 umodem_break(struct umodem_softc *sc, int onoff) 640 { 641 usb_device_request_t req; 642 643 DPRINTF(("umodem_break: onoff=%d\n", onoff)); 644 645 if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) 646 return; 647 648 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 649 req.bRequest = UCDC_SEND_BREAK; 650 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 651 USETW(req.wIndex, sc->sc_ctl_iface_no); 652 USETW(req.wLength, 0); 653 654 (void)usbd_do_request(sc->sc_udev, &req, 0); 655 } 656 657 void 658 umodem_set(void *addr, int portno, int reg, int onoff) 659 { 660 struct umodem_softc *sc = addr; 661 662 switch (reg) { 663 case UCOM_SET_DTR: 664 umodem_dtr(sc, onoff); 665 break; 666 case UCOM_SET_RTS: 667 umodem_rts(sc, onoff); 668 break; 669 case UCOM_SET_BREAK: 670 umodem_break(sc, onoff); 671 break; 672 default: 673 break; 674 } 675 } 676 677 usbd_status 678 umodem_set_line_coding(struct umodem_softc *sc, 679 struct usb_cdc_line_state *state) 680 { 681 usb_device_request_t req; 682 usbd_status err; 683 684 DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 685 UGETDW(state->dwDTERate), state->bCharFormat, 686 state->bParityType, state->bDataBits)); 687 688 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 689 DPRINTF(("umodem_set_line_coding: already set\n")); 690 return (USBD_NORMAL_COMPLETION); 691 } 692 693 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 694 req.bRequest = UCDC_SET_LINE_CODING; 695 USETW(req.wValue, 0); 696 USETW(req.wIndex, sc->sc_ctl_iface_no); 697 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 698 699 err = usbd_do_request(sc->sc_udev, &req, state); 700 if (err) { 701 DPRINTF(("umodem_set_line_coding: failed, err=%s\n", 702 usbd_errstr(err))); 703 return (err); 704 } 705 706 sc->sc_line_state = *state; 707 708 return (USBD_NORMAL_COMPLETION); 709 } 710 711 usbd_status 712 umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) 713 { 714 usb_device_request_t req; 715 usbd_status err; 716 struct usb_cdc_abstract_state ast; 717 718 DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature, 719 state)); 720 721 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 722 req.bRequest = UCDC_SET_COMM_FEATURE; 723 USETW(req.wValue, feature); 724 USETW(req.wIndex, sc->sc_ctl_iface_no); 725 USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); 726 USETW(ast.wState, state); 727 728 err = usbd_do_request(sc->sc_udev, &req, &ast); 729 if (err) { 730 DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n", 731 feature, usbd_errstr(err))); 732 return (err); 733 } 734 735 return (USBD_NORMAL_COMPLETION); 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 if (sc->sc_notify_pipe != NULL) { 747 usbd_abort_pipe(sc->sc_notify_pipe); 748 usbd_close_pipe(sc->sc_notify_pipe); 749 sc->sc_notify_pipe = NULL; 750 } 751 752 if (sc->sc_subdev != NULL) 753 rv = config_detach(sc->sc_subdev, flags); 754 755 return (rv); 756 } 757