1 /* $OpenBSD: umodem.c,v 1.46 2013/03/28 03:31:55 tedu 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/device.h> 57 #include <sys/poll.h> 58 59 #include <dev/usb/usb.h> 60 #include <dev/usb/usbcdc.h> 61 62 #include <dev/usb/usbdi.h> 63 #include <dev/usb/usbdi_util.h> 64 #include <dev/usb/usbdevs.h> 65 #include <dev/usb/usb_quirks.h> 66 67 #include <dev/usb/usbdevs.h> 68 #include <dev/usb/ucomvar.h> 69 70 #ifdef UMODEM_DEBUG 71 #define DPRINTFN(n, x) do { if (umodemdebug > (n)) printf x; } while (0) 72 int umodemdebug = 0; 73 #else 74 #define DPRINTFN(n, x) 75 #endif 76 #define DPRINTF(x) DPRINTFN(0, x) 77 78 /* 79 * These are the maximum number of bytes transferred per frame. 80 * Buffers are this large to deal with high speed wireless devices. 81 * Capped at 1024 as ttymalloc() is limited to this amount. 82 */ 83 #define UMODEMIBUFSIZE 1024 84 #define UMODEMOBUFSIZE 1024 85 86 struct umodem_softc { 87 struct device sc_dev; /* base device */ 88 89 usbd_device_handle sc_udev; /* USB device */ 90 91 int sc_ctl_iface_no; 92 usbd_interface_handle sc_ctl_iface; /* control interface */ 93 usbd_interface_handle sc_data_iface; /* data interface */ 94 95 int sc_cm_cap; /* CM capabilities */ 96 int sc_acm_cap; /* ACM capabilities */ 97 98 int sc_cm_over_data; 99 100 usb_cdc_line_state_t sc_line_state; /* current line state */ 101 u_char sc_dtr; /* current DTR state */ 102 u_char sc_rts; /* current RTS state */ 103 104 struct device *sc_subdev; /* ucom device */ 105 106 u_char sc_opening; /* lock during open */ 107 u_char sc_dying; /* disconnecting */ 108 109 int sc_ctl_notify; /* Notification endpoint */ 110 usbd_pipe_handle sc_notify_pipe; /* Notification pipe */ 111 usb_cdc_notification_t sc_notify_buf; /* Notification structure */ 112 u_char sc_lsr; /* Local status register */ 113 u_char sc_msr; /* Modem status register */ 114 }; 115 116 usbd_status umodem_set_comm_feature(struct umodem_softc *sc, 117 int feature, int state); 118 usbd_status umodem_set_line_coding(struct umodem_softc *sc, 119 usb_cdc_line_state_t *state); 120 121 void umodem_get_status(void *, int portno, u_char *lsr, u_char *msr); 122 void umodem_set(void *, int, int, int); 123 void umodem_dtr(struct umodem_softc *, int); 124 void umodem_rts(struct umodem_softc *, int); 125 void umodem_break(struct umodem_softc *, int); 126 void umodem_set_line_state(struct umodem_softc *); 127 int umodem_param(void *, int, struct termios *); 128 int umodem_ioctl(void *, int, u_long, caddr_t, int, struct proc *); 129 int umodem_open(void *, int portno); 130 void umodem_close(void *, int portno); 131 void umodem_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 132 133 struct ucom_methods umodem_methods = { 134 umodem_get_status, 135 umodem_set, 136 umodem_param, 137 umodem_ioctl, 138 umodem_open, 139 umodem_close, 140 NULL, 141 NULL, 142 }; 143 144 int umodem_match(struct device *, void *, void *); 145 void umodem_attach(struct device *, struct device *, void *); 146 int umodem_detach(struct device *, int); 147 int umodem_activate(struct device *, int); 148 149 void umodem_get_caps(struct usb_attach_arg *, int, int *, int *, int *); 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 void 164 umodem_get_caps(struct usb_attach_arg *uaa, int ctl_iface_no, 165 int *data_iface_no, int *cm_cap, int *acm_cap) 166 { 167 const usb_descriptor_t *desc; 168 const usb_interface_descriptor_t *id; 169 const usb_cdc_cm_descriptor_t *cmd; 170 const usb_cdc_acm_descriptor_t *acmd; 171 const usb_cdc_union_descriptor_t *uniond; 172 usbd_desc_iter_t iter; 173 int current_iface_no = -1; 174 175 *data_iface_no = -1; 176 *cm_cap = *acm_cap = 0; 177 usb_desc_iter_init(uaa->device, &iter); 178 desc = usb_desc_iter_next(&iter); 179 while (desc) { 180 if (desc->bDescriptorType == UDESC_INTERFACE) { 181 id = (usb_interface_descriptor_t *)desc; 182 current_iface_no = id->bInterfaceNumber; 183 if (current_iface_no != ctl_iface_no && 184 id->bInterfaceClass == UICLASS_CDC_DATA && 185 id->bInterfaceSubClass == UISUBCLASS_DATA && 186 *data_iface_no == -1) 187 *data_iface_no = current_iface_no; 188 } 189 if (current_iface_no == ctl_iface_no && 190 desc->bDescriptorType == UDESC_CS_INTERFACE) { 191 switch(desc->bDescriptorSubtype) { 192 case UDESCSUB_CDC_CM: 193 cmd = (usb_cdc_cm_descriptor_t *)desc; 194 *cm_cap = cmd->bmCapabilities; 195 *data_iface_no = cmd->bDataInterface; 196 break; 197 case UDESCSUB_CDC_ACM: 198 acmd = (usb_cdc_acm_descriptor_t *)desc; 199 *acm_cap = acmd->bmCapabilities; 200 break; 201 case UDESCSUB_CDC_UNION: 202 uniond = (usb_cdc_union_descriptor_t *)desc; 203 *data_iface_no = uniond->bSlaveInterface[0]; 204 break; 205 } 206 } 207 desc = usb_desc_iter_next(&iter); 208 } 209 } 210 211 int 212 umodem_match(struct device *parent, void *match, void *aux) 213 { 214 struct usb_attach_arg *uaa = aux; 215 usb_interface_descriptor_t *id; 216 usb_device_descriptor_t *dd; 217 int data_iface_no, cm_cap, acm_cap, ret = UMATCH_NONE; 218 219 if (uaa->iface == NULL) 220 return (ret); 221 222 id = usbd_get_interface_descriptor(uaa->iface); 223 dd = usbd_get_device_descriptor(uaa->device); 224 if (id == NULL || dd == NULL) 225 return (ret); 226 227 ret = UMATCH_NONE; 228 229 /* protocol of 0 so won't match the test below */ 230 if (UGETW(dd->idVendor) == USB_VENDOR_ATMEL && 231 UGETW(dd->idProduct) == USB_PRODUCT_ATMEL_AT91_CDC_ACM) 232 ret = UMATCH_VENDOR_PRODUCT; 233 234 if (UGETW(dd->idVendor) == USB_VENDOR_KYOCERA && 235 UGETW(dd->idProduct) == USB_PRODUCT_KYOCERA_AHK3001V && 236 id->bInterfaceNumber == 0) 237 ret = UMATCH_VENDOR_PRODUCT; 238 239 if (ret == UMATCH_NONE && 240 id->bInterfaceClass == UICLASS_CDC && 241 id->bInterfaceSubClass == UISUBCLASS_ABSTRACT_CONTROL_MODEL && 242 id->bInterfaceProtocol == UIPROTO_CDC_AT) 243 ret = UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO; 244 245 if (ret == UMATCH_NONE) 246 return (ret); 247 248 /* umodem doesn't support devices without a data iface */ 249 umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_no, 250 &cm_cap, &acm_cap); 251 if (data_iface_no == -1) 252 ret = UMATCH_NONE; 253 254 return (ret); 255 } 256 257 void 258 umodem_attach(struct device *parent, struct device *self, void *aux) 259 { 260 struct umodem_softc *sc = (struct umodem_softc *)self; 261 struct usb_attach_arg *uaa = aux; 262 usbd_device_handle dev = uaa->device; 263 usb_interface_descriptor_t *id; 264 usb_endpoint_descriptor_t *ed; 265 usbd_status err; 266 int data_iface_no = 0; 267 int i; 268 struct ucom_attach_args uca; 269 270 sc->sc_udev = dev; 271 sc->sc_ctl_iface = uaa->iface; 272 273 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 274 //printf("%s: iclass %d/%d\n", sc->sc_dev.dv_xname, 275 // id->bInterfaceClass, id->bInterfaceSubClass); 276 sc->sc_ctl_iface_no = id->bInterfaceNumber; 277 278 /* Get the capabilities. */ 279 umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_no, 280 &sc->sc_cm_cap, &sc->sc_acm_cap); 281 if (data_iface_no == -1) { 282 printf("%s: no data interface\n", 283 sc->sc_dev.dv_xname); 284 goto bad; 285 } 286 287 printf("%s: data interface %d, has %sCM over data, has %sbreak\n", 288 sc->sc_dev.dv_xname, data_iface_no, 289 sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ", 290 sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no "); 291 292 /* Get the data interface too. */ 293 for (i = 0; i < uaa->nifaces; i++) { 294 if (!usbd_iface_claimed(sc->sc_udev, i)) { 295 id = usbd_get_interface_descriptor(uaa->ifaces[i]); 296 if (id != NULL && 297 id->bInterfaceNumber == data_iface_no) { 298 sc->sc_data_iface = uaa->ifaces[i]; 299 usbd_claim_iface(sc->sc_udev, i); 300 } 301 } 302 } 303 if (sc->sc_data_iface == NULL) { 304 printf("%s: no data interface\n", sc->sc_dev.dv_xname); 305 goto bad; 306 } 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 id = usbd_get_interface_descriptor(sc->sc_data_iface); 315 for (i = 0; i < id->bNumEndpoints; i++) { 316 ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i); 317 if (ed == NULL) { 318 printf("%s: no endpoint descriptor for %d\n", 319 sc->sc_dev.dv_xname, i); 320 goto bad; 321 } 322 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 323 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 324 uca.bulkin = ed->bEndpointAddress; 325 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 326 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 327 uca.bulkout = ed->bEndpointAddress; 328 } 329 } 330 331 if (uca.bulkin == -1) { 332 printf("%s: Could not find data bulk in\n", 333 sc->sc_dev.dv_xname); 334 goto bad; 335 } 336 if (uca.bulkout == -1) { 337 printf("%s: Could not find data bulk out\n", 338 sc->sc_dev.dv_xname); 339 goto bad; 340 } 341 342 if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) { 343 sc->sc_cm_over_data = 1; 344 } else { 345 if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) { 346 if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE) 347 err = umodem_set_comm_feature(sc, 348 UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED); 349 else 350 err = 0; 351 if (err) { 352 printf("%s: could not set data multiplex mode\n", 353 sc->sc_dev.dv_xname); 354 goto bad; 355 } 356 sc->sc_cm_over_data = 1; 357 } 358 } 359 360 /* 361 * The standard allows for notification messages (to indicate things 362 * like a modem hangup) to come in via an interrupt endpoint 363 * off of the control interface. Iterate over the endpoints on 364 * the control interface and see if there are any interrupt 365 * endpoints; if there are, then register it. 366 */ 367 368 sc->sc_ctl_notify = -1; 369 sc->sc_notify_pipe = NULL; 370 371 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 372 for (i = 0; i < id->bNumEndpoints; i++) { 373 ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i); 374 if (ed == NULL) 375 continue; 376 377 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 378 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 379 printf("%s: status change notification available\n", 380 sc->sc_dev.dv_xname); 381 sc->sc_ctl_notify = ed->bEndpointAddress; 382 } 383 } 384 385 sc->sc_dtr = -1; 386 387 uca.portno = UCOM_UNK_PORTNO; 388 /* bulkin, bulkout set above */ 389 uca.ibufsize = UMODEMIBUFSIZE; 390 uca.obufsize = UMODEMOBUFSIZE; 391 uca.ibufsizepad = UMODEMIBUFSIZE; 392 uca.opkthdrlen = 0; 393 uca.device = sc->sc_udev; 394 uca.iface = sc->sc_data_iface; 395 uca.methods = &umodem_methods; 396 uca.arg = sc; 397 uca.info = NULL; 398 399 DPRINTF(("umodem_attach: sc=%p\n", sc)); 400 sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch); 401 402 return; 403 404 bad: 405 sc->sc_dying = 1; 406 } 407 408 int 409 umodem_open(void *addr, int portno) 410 { 411 struct umodem_softc *sc = addr; 412 int err; 413 414 DPRINTF(("umodem_open: sc=%p\n", sc)); 415 416 if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) { 417 err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify, 418 USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc, 419 &sc->sc_notify_buf, sizeof(sc->sc_notify_buf), 420 umodem_intr, USBD_DEFAULT_INTERVAL); 421 422 if (err) { 423 DPRINTF(("Failed to establish notify pipe: %s\n", 424 usbd_errstr(err))); 425 return EIO; 426 } 427 } 428 429 return 0; 430 } 431 432 void 433 umodem_close(void *addr, int portno) 434 { 435 struct umodem_softc *sc = addr; 436 int err; 437 438 DPRINTF(("umodem_close: sc=%p\n", sc)); 439 440 if (sc->sc_notify_pipe != NULL) { 441 err = usbd_abort_pipe(sc->sc_notify_pipe); 442 if (err) 443 printf("%s: abort notify pipe failed: %s\n", 444 sc->sc_dev.dv_xname, usbd_errstr(err)); 445 err = usbd_close_pipe(sc->sc_notify_pipe); 446 if (err) 447 printf("%s: close notify pipe failed: %s\n", 448 sc->sc_dev.dv_xname, usbd_errstr(err)); 449 sc->sc_notify_pipe = NULL; 450 } 451 } 452 453 void 454 umodem_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 455 { 456 struct umodem_softc *sc = priv; 457 u_char mstatus; 458 459 if (sc->sc_dying) 460 return; 461 462 if (status != USBD_NORMAL_COMPLETION) { 463 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 464 return; 465 DPRINTF(("%s: abnormal status: %s\n", sc->sc_dev.dv_xname, 466 usbd_errstr(status))); 467 usbd_clear_endpoint_stall_async(sc->sc_notify_pipe); 468 return; 469 } 470 471 if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { 472 DPRINTF(("%s: unknown message type (%02x) on notify pipe\n", 473 sc->sc_dev.dv_xname, 474 sc->sc_notify_buf.bmRequestType)); 475 return; 476 } 477 478 switch (sc->sc_notify_buf.bNotification) { 479 case UCDC_N_SERIAL_STATE: 480 /* 481 * Set the serial state in ucom driver based on 482 * the bits from the notify message 483 */ 484 if (UGETW(sc->sc_notify_buf.wLength) != 2) { 485 printf("%s: Invalid notification length! (%d)\n", 486 sc->sc_dev.dv_xname, 487 UGETW(sc->sc_notify_buf.wLength)); 488 break; 489 } 490 DPRINTF(("%s: notify bytes = %02x%02x\n", 491 sc->sc_dev.dv_xname, 492 sc->sc_notify_buf.data[0], 493 sc->sc_notify_buf.data[1])); 494 /* Currently, lsr is always zero. */ 495 sc->sc_lsr = sc->sc_msr = 0; 496 mstatus = sc->sc_notify_buf.data[0]; 497 498 if (ISSET(mstatus, UCDC_N_SERIAL_RI)) 499 sc->sc_msr |= UMSR_RI; 500 if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) 501 sc->sc_msr |= UMSR_DSR; 502 if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) 503 sc->sc_msr |= UMSR_DCD; 504 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 505 break; 506 default: 507 DPRINTF(("%s: unknown notify message: %02x\n", 508 sc->sc_dev.dv_xname, 509 sc->sc_notify_buf.bNotification)); 510 break; 511 } 512 } 513 514 void 515 umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 516 { 517 struct umodem_softc *sc = addr; 518 519 DPRINTF(("umodem_get_status:\n")); 520 521 if (lsr != NULL) 522 *lsr = sc->sc_lsr; 523 if (msr != NULL) 524 *msr = sc->sc_msr; 525 } 526 527 int 528 umodem_param(void *addr, int portno, struct termios *t) 529 { 530 struct umodem_softc *sc = addr; 531 usbd_status err; 532 usb_cdc_line_state_t ls; 533 534 DPRINTF(("umodem_param: sc=%p\n", sc)); 535 536 USETDW(ls.dwDTERate, t->c_ospeed); 537 if (ISSET(t->c_cflag, CSTOPB)) 538 ls.bCharFormat = UCDC_STOP_BIT_2; 539 else 540 ls.bCharFormat = UCDC_STOP_BIT_1; 541 if (ISSET(t->c_cflag, PARENB)) { 542 if (ISSET(t->c_cflag, PARODD)) 543 ls.bParityType = UCDC_PARITY_ODD; 544 else 545 ls.bParityType = UCDC_PARITY_EVEN; 546 } else 547 ls.bParityType = UCDC_PARITY_NONE; 548 switch (ISSET(t->c_cflag, CSIZE)) { 549 case CS5: 550 ls.bDataBits = 5; 551 break; 552 case CS6: 553 ls.bDataBits = 6; 554 break; 555 case CS7: 556 ls.bDataBits = 7; 557 break; 558 case CS8: 559 ls.bDataBits = 8; 560 break; 561 } 562 563 err = umodem_set_line_coding(sc, &ls); 564 if (err) { 565 DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err))); 566 return (1); 567 } 568 return (0); 569 } 570 571 int 572 umodem_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag, 573 struct proc *p) 574 { 575 struct umodem_softc *sc = addr; 576 int error = 0; 577 578 if (sc->sc_dying) 579 return (EIO); 580 581 DPRINTF(("umodemioctl: cmd=0x%08lx\n", cmd)); 582 583 switch (cmd) { 584 case USB_GET_CM_OVER_DATA: 585 *(int *)data = sc->sc_cm_over_data; 586 break; 587 588 case USB_SET_CM_OVER_DATA: 589 if (*(int *)data != sc->sc_cm_over_data) { 590 /* XXX change it */ 591 } 592 break; 593 594 default: 595 DPRINTF(("umodemioctl: unknown\n")); 596 error = ENOTTY; 597 break; 598 } 599 600 return (error); 601 } 602 603 void 604 umodem_dtr(struct umodem_softc *sc, int onoff) 605 { 606 DPRINTF(("umodem_modem: onoff=%d\n", onoff)); 607 608 if (sc->sc_dtr == onoff) 609 return; 610 sc->sc_dtr = onoff; 611 612 umodem_set_line_state(sc); 613 } 614 615 void 616 umodem_rts(struct umodem_softc *sc, int onoff) 617 { 618 DPRINTF(("umodem_modem: onoff=%d\n", onoff)); 619 620 if (sc->sc_rts == onoff) 621 return; 622 sc->sc_rts = onoff; 623 624 umodem_set_line_state(sc); 625 } 626 627 void 628 umodem_set_line_state(struct umodem_softc *sc) 629 { 630 usb_device_request_t req; 631 int ls; 632 633 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 634 (sc->sc_rts ? UCDC_LINE_RTS : 0); 635 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 636 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 637 USETW(req.wValue, ls); 638 USETW(req.wIndex, sc->sc_ctl_iface_no); 639 USETW(req.wLength, 0); 640 641 (void)usbd_do_request(sc->sc_udev, &req, 0); 642 643 } 644 645 void 646 umodem_break(struct umodem_softc *sc, int onoff) 647 { 648 usb_device_request_t req; 649 650 DPRINTF(("umodem_break: onoff=%d\n", onoff)); 651 652 if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) 653 return; 654 655 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 656 req.bRequest = UCDC_SEND_BREAK; 657 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 658 USETW(req.wIndex, sc->sc_ctl_iface_no); 659 USETW(req.wLength, 0); 660 661 (void)usbd_do_request(sc->sc_udev, &req, 0); 662 } 663 664 void 665 umodem_set(void *addr, int portno, int reg, int onoff) 666 { 667 struct umodem_softc *sc = addr; 668 669 switch (reg) { 670 case UCOM_SET_DTR: 671 umodem_dtr(sc, onoff); 672 break; 673 case UCOM_SET_RTS: 674 umodem_rts(sc, onoff); 675 break; 676 case UCOM_SET_BREAK: 677 umodem_break(sc, onoff); 678 break; 679 default: 680 break; 681 } 682 } 683 684 usbd_status 685 umodem_set_line_coding(struct umodem_softc *sc, usb_cdc_line_state_t *state) 686 { 687 usb_device_request_t req; 688 usbd_status err; 689 690 DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 691 UGETDW(state->dwDTERate), state->bCharFormat, 692 state->bParityType, state->bDataBits)); 693 694 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 695 DPRINTF(("umodem_set_line_coding: already set\n")); 696 return (USBD_NORMAL_COMPLETION); 697 } 698 699 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 700 req.bRequest = UCDC_SET_LINE_CODING; 701 USETW(req.wValue, 0); 702 USETW(req.wIndex, sc->sc_ctl_iface_no); 703 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 704 705 err = usbd_do_request(sc->sc_udev, &req, state); 706 if (err) { 707 DPRINTF(("umodem_set_line_coding: failed, err=%s\n", 708 usbd_errstr(err))); 709 return (err); 710 } 711 712 sc->sc_line_state = *state; 713 714 return (USBD_NORMAL_COMPLETION); 715 } 716 717 usbd_status 718 umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) 719 { 720 usb_device_request_t req; 721 usbd_status err; 722 usb_cdc_abstract_state_t ast; 723 724 DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature, 725 state)); 726 727 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 728 req.bRequest = UCDC_SET_COMM_FEATURE; 729 USETW(req.wValue, feature); 730 USETW(req.wIndex, sc->sc_ctl_iface_no); 731 USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); 732 USETW(ast.wState, state); 733 734 err = usbd_do_request(sc->sc_udev, &req, &ast); 735 if (err) { 736 DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n", 737 feature, usbd_errstr(err))); 738 return (err); 739 } 740 741 return (USBD_NORMAL_COMPLETION); 742 } 743 744 int 745 umodem_activate(struct device *self, int act) 746 { 747 struct umodem_softc *sc = (struct umodem_softc *)self; 748 int rv = 0; 749 750 switch (act) { 751 case DVACT_DEACTIVATE: 752 sc->sc_dying = 1; 753 if (sc->sc_subdev) 754 rv = config_deactivate(sc->sc_subdev); 755 break; 756 } 757 return (rv); 758 } 759 760 int 761 umodem_detach(struct device *self, int flags) 762 { 763 struct umodem_softc *sc = (struct umodem_softc *)self; 764 int rv = 0; 765 766 DPRINTF(("umodem_detach: sc=%p flags=%d\n", sc, flags)); 767 768 if (sc->sc_subdev != NULL) 769 rv = config_detach(sc->sc_subdev, flags); 770 771 return (rv); 772 } 773