1 /* $OpenBSD: umodem.c,v 1.45 2012/02/09 01:16:39 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/proc.h> 56 #include <sys/vnode.h> 57 #include <sys/device.h> 58 #include <sys/poll.h> 59 60 #include <dev/usb/usb.h> 61 #include <dev/usb/usbcdc.h> 62 63 #include <dev/usb/usbdi.h> 64 #include <dev/usb/usbdi_util.h> 65 #include <dev/usb/usbdevs.h> 66 #include <dev/usb/usb_quirks.h> 67 68 #include <dev/usb/usbdevs.h> 69 #include <dev/usb/ucomvar.h> 70 71 #ifdef UMODEM_DEBUG 72 #define DPRINTFN(n, x) do { if (umodemdebug > (n)) printf x; } while (0) 73 int umodemdebug = 0; 74 #else 75 #define DPRINTFN(n, x) 76 #endif 77 #define DPRINTF(x) DPRINTFN(0, x) 78 79 /* 80 * These are the maximum number of bytes transferred per frame. 81 * Buffers are this large to deal with high speed wireless devices. 82 * Capped at 1024 as ttymalloc() is limited to this amount. 83 */ 84 #define UMODEMIBUFSIZE 1024 85 #define UMODEMOBUFSIZE 1024 86 87 struct umodem_softc { 88 struct device sc_dev; /* base device */ 89 90 usbd_device_handle sc_udev; /* USB device */ 91 92 int sc_ctl_iface_no; 93 usbd_interface_handle sc_ctl_iface; /* control interface */ 94 usbd_interface_handle sc_data_iface; /* data interface */ 95 96 int sc_cm_cap; /* CM capabilities */ 97 int sc_acm_cap; /* ACM capabilities */ 98 99 int sc_cm_over_data; 100 101 usb_cdc_line_state_t sc_line_state; /* current line state */ 102 u_char sc_dtr; /* current DTR state */ 103 u_char sc_rts; /* current RTS state */ 104 105 struct device *sc_subdev; /* ucom device */ 106 107 u_char sc_opening; /* lock during open */ 108 u_char sc_dying; /* disconnecting */ 109 110 int sc_ctl_notify; /* Notification endpoint */ 111 usbd_pipe_handle sc_notify_pipe; /* Notification pipe */ 112 usb_cdc_notification_t sc_notify_buf; /* Notification structure */ 113 u_char sc_lsr; /* Local status register */ 114 u_char sc_msr; /* Modem status register */ 115 }; 116 117 usbd_status umodem_set_comm_feature(struct umodem_softc *sc, 118 int feature, int state); 119 usbd_status umodem_set_line_coding(struct umodem_softc *sc, 120 usb_cdc_line_state_t *state); 121 122 void umodem_get_status(void *, int portno, u_char *lsr, u_char *msr); 123 void umodem_set(void *, int, int, int); 124 void umodem_dtr(struct umodem_softc *, int); 125 void umodem_rts(struct umodem_softc *, int); 126 void umodem_break(struct umodem_softc *, int); 127 void umodem_set_line_state(struct umodem_softc *); 128 int umodem_param(void *, int, struct termios *); 129 int umodem_ioctl(void *, int, u_long, caddr_t, int, struct proc *); 130 int umodem_open(void *, int portno); 131 void umodem_close(void *, int portno); 132 void umodem_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 133 134 struct ucom_methods umodem_methods = { 135 umodem_get_status, 136 umodem_set, 137 umodem_param, 138 umodem_ioctl, 139 umodem_open, 140 umodem_close, 141 NULL, 142 NULL, 143 }; 144 145 int umodem_match(struct device *, void *, void *); 146 void umodem_attach(struct device *, struct device *, void *); 147 int umodem_detach(struct device *, int); 148 int umodem_activate(struct device *, int); 149 150 void umodem_get_caps(struct usb_attach_arg *, int, int *, int *, int *); 151 152 struct cfdriver umodem_cd = { 153 NULL, "umodem", DV_DULL 154 }; 155 156 const struct cfattach umodem_ca = { 157 sizeof(struct umodem_softc), 158 umodem_match, 159 umodem_attach, 160 umodem_detach, 161 umodem_activate, 162 }; 163 164 void 165 umodem_get_caps(struct usb_attach_arg *uaa, int ctl_iface_no, 166 int *data_iface_no, int *cm_cap, int *acm_cap) 167 { 168 const usb_descriptor_t *desc; 169 const usb_interface_descriptor_t *id; 170 const usb_cdc_cm_descriptor_t *cmd; 171 const usb_cdc_acm_descriptor_t *acmd; 172 const usb_cdc_union_descriptor_t *uniond; 173 usbd_desc_iter_t iter; 174 int current_iface_no = -1; 175 176 *data_iface_no = -1; 177 *cm_cap = *acm_cap = 0; 178 usb_desc_iter_init(uaa->device, &iter); 179 desc = usb_desc_iter_next(&iter); 180 while (desc) { 181 if (desc->bDescriptorType == UDESC_INTERFACE) { 182 id = (usb_interface_descriptor_t *)desc; 183 current_iface_no = id->bInterfaceNumber; 184 if (current_iface_no != ctl_iface_no && 185 id->bInterfaceClass == UICLASS_CDC_DATA && 186 id->bInterfaceSubClass == UISUBCLASS_DATA && 187 *data_iface_no == -1) 188 *data_iface_no = current_iface_no; 189 } 190 if (current_iface_no == ctl_iface_no && 191 desc->bDescriptorType == UDESC_CS_INTERFACE) { 192 switch(desc->bDescriptorSubtype) { 193 case UDESCSUB_CDC_CM: 194 cmd = (usb_cdc_cm_descriptor_t *)desc; 195 *cm_cap = cmd->bmCapabilities; 196 *data_iface_no = cmd->bDataInterface; 197 break; 198 case UDESCSUB_CDC_ACM: 199 acmd = (usb_cdc_acm_descriptor_t *)desc; 200 *acm_cap = acmd->bmCapabilities; 201 break; 202 case UDESCSUB_CDC_UNION: 203 uniond = (usb_cdc_union_descriptor_t *)desc; 204 *data_iface_no = uniond->bSlaveInterface[0]; 205 break; 206 } 207 } 208 desc = usb_desc_iter_next(&iter); 209 } 210 } 211 212 int 213 umodem_match(struct device *parent, void *match, void *aux) 214 { 215 struct usb_attach_arg *uaa = aux; 216 usb_interface_descriptor_t *id; 217 usb_device_descriptor_t *dd; 218 int data_iface_no, cm_cap, acm_cap, ret = UMATCH_NONE; 219 220 if (uaa->iface == NULL) 221 return (ret); 222 223 id = usbd_get_interface_descriptor(uaa->iface); 224 dd = usbd_get_device_descriptor(uaa->device); 225 if (id == NULL || dd == NULL) 226 return (ret); 227 228 ret = UMATCH_NONE; 229 230 /* protocol of 0 so won't match the test below */ 231 if (UGETW(dd->idVendor) == USB_VENDOR_ATMEL && 232 UGETW(dd->idProduct) == USB_PRODUCT_ATMEL_AT91_CDC_ACM) 233 ret = UMATCH_VENDOR_PRODUCT; 234 235 if (UGETW(dd->idVendor) == USB_VENDOR_KYOCERA && 236 UGETW(dd->idProduct) == USB_PRODUCT_KYOCERA_AHK3001V && 237 id->bInterfaceNumber == 0) 238 ret = UMATCH_VENDOR_PRODUCT; 239 240 if (ret == UMATCH_NONE && 241 id->bInterfaceClass == UICLASS_CDC && 242 id->bInterfaceSubClass == UISUBCLASS_ABSTRACT_CONTROL_MODEL && 243 id->bInterfaceProtocol == UIPROTO_CDC_AT) 244 ret = UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO; 245 246 if (ret == UMATCH_NONE) 247 return (ret); 248 249 /* umodem doesn't support devices without a data iface */ 250 umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_no, 251 &cm_cap, &acm_cap); 252 if (data_iface_no == -1) 253 ret = UMATCH_NONE; 254 255 return (ret); 256 } 257 258 void 259 umodem_attach(struct device *parent, struct device *self, void *aux) 260 { 261 struct umodem_softc *sc = (struct umodem_softc *)self; 262 struct usb_attach_arg *uaa = aux; 263 usbd_device_handle dev = uaa->device; 264 usb_interface_descriptor_t *id; 265 usb_endpoint_descriptor_t *ed; 266 usbd_status err; 267 int data_iface_no = 0; 268 int i; 269 struct ucom_attach_args uca; 270 271 sc->sc_udev = dev; 272 sc->sc_ctl_iface = uaa->iface; 273 274 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 275 //printf("%s: iclass %d/%d\n", sc->sc_dev.dv_xname, 276 // id->bInterfaceClass, id->bInterfaceSubClass); 277 sc->sc_ctl_iface_no = id->bInterfaceNumber; 278 279 /* Get the capabilities. */ 280 umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_no, 281 &sc->sc_cm_cap, &sc->sc_acm_cap); 282 if (data_iface_no == -1) { 283 printf("%s: no data interface\n", 284 sc->sc_dev.dv_xname); 285 goto bad; 286 } 287 288 printf("%s: data interface %d, has %sCM over data, has %sbreak\n", 289 sc->sc_dev.dv_xname, data_iface_no, 290 sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ", 291 sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no "); 292 293 /* Get the data interface too. */ 294 for (i = 0; i < uaa->nifaces; i++) { 295 if (!usbd_iface_claimed(sc->sc_udev, i)) { 296 id = usbd_get_interface_descriptor(uaa->ifaces[i]); 297 if (id != NULL && 298 id->bInterfaceNumber == data_iface_no) { 299 sc->sc_data_iface = uaa->ifaces[i]; 300 usbd_claim_iface(sc->sc_udev, i); 301 } 302 } 303 } 304 if (sc->sc_data_iface == NULL) { 305 printf("%s: no data interface\n", sc->sc_dev.dv_xname); 306 goto bad; 307 } 308 309 /* 310 * Find the bulk endpoints. 311 * Iterate over all endpoints in the data interface and take note. 312 */ 313 uca.bulkin = uca.bulkout = -1; 314 315 id = usbd_get_interface_descriptor(sc->sc_data_iface); 316 for (i = 0; i < id->bNumEndpoints; i++) { 317 ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i); 318 if (ed == NULL) { 319 printf("%s: no endpoint descriptor for %d\n", 320 sc->sc_dev.dv_xname, i); 321 goto bad; 322 } 323 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 324 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 325 uca.bulkin = ed->bEndpointAddress; 326 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 327 (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 328 uca.bulkout = ed->bEndpointAddress; 329 } 330 } 331 332 if (uca.bulkin == -1) { 333 printf("%s: Could not find data bulk in\n", 334 sc->sc_dev.dv_xname); 335 goto bad; 336 } 337 if (uca.bulkout == -1) { 338 printf("%s: Could not find data bulk out\n", 339 sc->sc_dev.dv_xname); 340 goto bad; 341 } 342 343 if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) { 344 sc->sc_cm_over_data = 1; 345 } else { 346 if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) { 347 if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE) 348 err = umodem_set_comm_feature(sc, 349 UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED); 350 else 351 err = 0; 352 if (err) { 353 printf("%s: could not set data multiplex mode\n", 354 sc->sc_dev.dv_xname); 355 goto bad; 356 } 357 sc->sc_cm_over_data = 1; 358 } 359 } 360 361 /* 362 * The standard allows for notification messages (to indicate things 363 * like a modem hangup) to come in via an interrupt endpoint 364 * off of the control interface. Iterate over the endpoints on 365 * the control interface and see if there are any interrupt 366 * endpoints; if there are, then register it. 367 */ 368 369 sc->sc_ctl_notify = -1; 370 sc->sc_notify_pipe = NULL; 371 372 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 373 for (i = 0; i < id->bNumEndpoints; i++) { 374 ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i); 375 if (ed == NULL) 376 continue; 377 378 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 379 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 380 printf("%s: status change notification available\n", 381 sc->sc_dev.dv_xname); 382 sc->sc_ctl_notify = ed->bEndpointAddress; 383 } 384 } 385 386 sc->sc_dtr = -1; 387 388 uca.portno = UCOM_UNK_PORTNO; 389 /* bulkin, bulkout set above */ 390 uca.ibufsize = UMODEMIBUFSIZE; 391 uca.obufsize = UMODEMOBUFSIZE; 392 uca.ibufsizepad = UMODEMIBUFSIZE; 393 uca.opkthdrlen = 0; 394 uca.device = sc->sc_udev; 395 uca.iface = sc->sc_data_iface; 396 uca.methods = &umodem_methods; 397 uca.arg = sc; 398 uca.info = NULL; 399 400 DPRINTF(("umodem_attach: sc=%p\n", sc)); 401 sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch); 402 403 return; 404 405 bad: 406 sc->sc_dying = 1; 407 } 408 409 int 410 umodem_open(void *addr, int portno) 411 { 412 struct umodem_softc *sc = addr; 413 int err; 414 415 DPRINTF(("umodem_open: sc=%p\n", sc)); 416 417 if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) { 418 err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify, 419 USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc, 420 &sc->sc_notify_buf, sizeof(sc->sc_notify_buf), 421 umodem_intr, USBD_DEFAULT_INTERVAL); 422 423 if (err) { 424 DPRINTF(("Failed to establish notify pipe: %s\n", 425 usbd_errstr(err))); 426 return EIO; 427 } 428 } 429 430 return 0; 431 } 432 433 void 434 umodem_close(void *addr, int portno) 435 { 436 struct umodem_softc *sc = addr; 437 int err; 438 439 DPRINTF(("umodem_close: sc=%p\n", sc)); 440 441 if (sc->sc_notify_pipe != NULL) { 442 err = usbd_abort_pipe(sc->sc_notify_pipe); 443 if (err) 444 printf("%s: abort notify pipe failed: %s\n", 445 sc->sc_dev.dv_xname, usbd_errstr(err)); 446 err = usbd_close_pipe(sc->sc_notify_pipe); 447 if (err) 448 printf("%s: close notify pipe failed: %s\n", 449 sc->sc_dev.dv_xname, usbd_errstr(err)); 450 sc->sc_notify_pipe = NULL; 451 } 452 } 453 454 void 455 umodem_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 456 { 457 struct umodem_softc *sc = priv; 458 u_char mstatus; 459 460 if (sc->sc_dying) 461 return; 462 463 if (status != USBD_NORMAL_COMPLETION) { 464 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 465 return; 466 DPRINTF(("%s: abnormal status: %s\n", sc->sc_dev.dv_xname, 467 usbd_errstr(status))); 468 usbd_clear_endpoint_stall_async(sc->sc_notify_pipe); 469 return; 470 } 471 472 if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { 473 DPRINTF(("%s: unknown message type (%02x) on notify pipe\n", 474 sc->sc_dev.dv_xname, 475 sc->sc_notify_buf.bmRequestType)); 476 return; 477 } 478 479 switch (sc->sc_notify_buf.bNotification) { 480 case UCDC_N_SERIAL_STATE: 481 /* 482 * Set the serial state in ucom driver based on 483 * the bits from the notify message 484 */ 485 if (UGETW(sc->sc_notify_buf.wLength) != 2) { 486 printf("%s: Invalid notification length! (%d)\n", 487 sc->sc_dev.dv_xname, 488 UGETW(sc->sc_notify_buf.wLength)); 489 break; 490 } 491 DPRINTF(("%s: notify bytes = %02x%02x\n", 492 sc->sc_dev.dv_xname, 493 sc->sc_notify_buf.data[0], 494 sc->sc_notify_buf.data[1])); 495 /* Currently, lsr is always zero. */ 496 sc->sc_lsr = sc->sc_msr = 0; 497 mstatus = sc->sc_notify_buf.data[0]; 498 499 if (ISSET(mstatus, UCDC_N_SERIAL_RI)) 500 sc->sc_msr |= UMSR_RI; 501 if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) 502 sc->sc_msr |= UMSR_DSR; 503 if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) 504 sc->sc_msr |= UMSR_DCD; 505 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 506 break; 507 default: 508 DPRINTF(("%s: unknown notify message: %02x\n", 509 sc->sc_dev.dv_xname, 510 sc->sc_notify_buf.bNotification)); 511 break; 512 } 513 } 514 515 void 516 umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 517 { 518 struct umodem_softc *sc = addr; 519 520 DPRINTF(("umodem_get_status:\n")); 521 522 if (lsr != NULL) 523 *lsr = sc->sc_lsr; 524 if (msr != NULL) 525 *msr = sc->sc_msr; 526 } 527 528 int 529 umodem_param(void *addr, int portno, struct termios *t) 530 { 531 struct umodem_softc *sc = addr; 532 usbd_status err; 533 usb_cdc_line_state_t ls; 534 535 DPRINTF(("umodem_param: sc=%p\n", sc)); 536 537 USETDW(ls.dwDTERate, t->c_ospeed); 538 if (ISSET(t->c_cflag, CSTOPB)) 539 ls.bCharFormat = UCDC_STOP_BIT_2; 540 else 541 ls.bCharFormat = UCDC_STOP_BIT_1; 542 if (ISSET(t->c_cflag, PARENB)) { 543 if (ISSET(t->c_cflag, PARODD)) 544 ls.bParityType = UCDC_PARITY_ODD; 545 else 546 ls.bParityType = UCDC_PARITY_EVEN; 547 } else 548 ls.bParityType = UCDC_PARITY_NONE; 549 switch (ISSET(t->c_cflag, CSIZE)) { 550 case CS5: 551 ls.bDataBits = 5; 552 break; 553 case CS6: 554 ls.bDataBits = 6; 555 break; 556 case CS7: 557 ls.bDataBits = 7; 558 break; 559 case CS8: 560 ls.bDataBits = 8; 561 break; 562 } 563 564 err = umodem_set_line_coding(sc, &ls); 565 if (err) { 566 DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err))); 567 return (1); 568 } 569 return (0); 570 } 571 572 int 573 umodem_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag, 574 struct proc *p) 575 { 576 struct umodem_softc *sc = addr; 577 int error = 0; 578 579 if (sc->sc_dying) 580 return (EIO); 581 582 DPRINTF(("umodemioctl: cmd=0x%08lx\n", cmd)); 583 584 switch (cmd) { 585 case USB_GET_CM_OVER_DATA: 586 *(int *)data = sc->sc_cm_over_data; 587 break; 588 589 case USB_SET_CM_OVER_DATA: 590 if (*(int *)data != sc->sc_cm_over_data) { 591 /* XXX change it */ 592 } 593 break; 594 595 default: 596 DPRINTF(("umodemioctl: unknown\n")); 597 error = ENOTTY; 598 break; 599 } 600 601 return (error); 602 } 603 604 void 605 umodem_dtr(struct umodem_softc *sc, int onoff) 606 { 607 DPRINTF(("umodem_modem: onoff=%d\n", onoff)); 608 609 if (sc->sc_dtr == onoff) 610 return; 611 sc->sc_dtr = onoff; 612 613 umodem_set_line_state(sc); 614 } 615 616 void 617 umodem_rts(struct umodem_softc *sc, int onoff) 618 { 619 DPRINTF(("umodem_modem: onoff=%d\n", onoff)); 620 621 if (sc->sc_rts == onoff) 622 return; 623 sc->sc_rts = onoff; 624 625 umodem_set_line_state(sc); 626 } 627 628 void 629 umodem_set_line_state(struct umodem_softc *sc) 630 { 631 usb_device_request_t req; 632 int ls; 633 634 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 635 (sc->sc_rts ? UCDC_LINE_RTS : 0); 636 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 637 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 638 USETW(req.wValue, ls); 639 USETW(req.wIndex, sc->sc_ctl_iface_no); 640 USETW(req.wLength, 0); 641 642 (void)usbd_do_request(sc->sc_udev, &req, 0); 643 644 } 645 646 void 647 umodem_break(struct umodem_softc *sc, int onoff) 648 { 649 usb_device_request_t req; 650 651 DPRINTF(("umodem_break: onoff=%d\n", onoff)); 652 653 if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) 654 return; 655 656 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 657 req.bRequest = UCDC_SEND_BREAK; 658 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 659 USETW(req.wIndex, sc->sc_ctl_iface_no); 660 USETW(req.wLength, 0); 661 662 (void)usbd_do_request(sc->sc_udev, &req, 0); 663 } 664 665 void 666 umodem_set(void *addr, int portno, int reg, int onoff) 667 { 668 struct umodem_softc *sc = addr; 669 670 switch (reg) { 671 case UCOM_SET_DTR: 672 umodem_dtr(sc, onoff); 673 break; 674 case UCOM_SET_RTS: 675 umodem_rts(sc, onoff); 676 break; 677 case UCOM_SET_BREAK: 678 umodem_break(sc, onoff); 679 break; 680 default: 681 break; 682 } 683 } 684 685 usbd_status 686 umodem_set_line_coding(struct umodem_softc *sc, usb_cdc_line_state_t *state) 687 { 688 usb_device_request_t req; 689 usbd_status err; 690 691 DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 692 UGETDW(state->dwDTERate), state->bCharFormat, 693 state->bParityType, state->bDataBits)); 694 695 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 696 DPRINTF(("umodem_set_line_coding: already set\n")); 697 return (USBD_NORMAL_COMPLETION); 698 } 699 700 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 701 req.bRequest = UCDC_SET_LINE_CODING; 702 USETW(req.wValue, 0); 703 USETW(req.wIndex, sc->sc_ctl_iface_no); 704 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 705 706 err = usbd_do_request(sc->sc_udev, &req, state); 707 if (err) { 708 DPRINTF(("umodem_set_line_coding: failed, err=%s\n", 709 usbd_errstr(err))); 710 return (err); 711 } 712 713 sc->sc_line_state = *state; 714 715 return (USBD_NORMAL_COMPLETION); 716 } 717 718 usbd_status 719 umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) 720 { 721 usb_device_request_t req; 722 usbd_status err; 723 usb_cdc_abstract_state_t ast; 724 725 DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature, 726 state)); 727 728 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 729 req.bRequest = UCDC_SET_COMM_FEATURE; 730 USETW(req.wValue, feature); 731 USETW(req.wIndex, sc->sc_ctl_iface_no); 732 USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); 733 USETW(ast.wState, state); 734 735 err = usbd_do_request(sc->sc_udev, &req, &ast); 736 if (err) { 737 DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n", 738 feature, usbd_errstr(err))); 739 return (err); 740 } 741 742 return (USBD_NORMAL_COMPLETION); 743 } 744 745 int 746 umodem_activate(struct device *self, int act) 747 { 748 struct umodem_softc *sc = (struct umodem_softc *)self; 749 int rv = 0; 750 751 switch (act) { 752 case DVACT_DEACTIVATE: 753 sc->sc_dying = 1; 754 if (sc->sc_subdev) 755 rv = config_deactivate(sc->sc_subdev); 756 break; 757 } 758 return (rv); 759 } 760 761 int 762 umodem_detach(struct device *self, int flags) 763 { 764 struct umodem_softc *sc = (struct umodem_softc *)self; 765 int rv = 0; 766 767 DPRINTF(("umodem_detach: sc=%p flags=%d\n", sc, flags)); 768 769 if (sc->sc_subdev != NULL) 770 rv = config_detach(sc->sc_subdev, flags); 771 772 return (rv); 773 } 774