1 /* $OpenBSD: umodem.c,v 1.47 2013/03/28 03:58:03 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/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/usbdevs.h> 67 #include <dev/usb/ucomvar.h> 68 69 #ifdef UMODEM_DEBUG 70 #define DPRINTFN(n, x) do { if (umodemdebug > (n)) printf x; } while (0) 71 int umodemdebug = 0; 72 #else 73 #define DPRINTFN(n, x) 74 #endif 75 #define DPRINTF(x) DPRINTFN(0, x) 76 77 /* 78 * These are the maximum number of bytes transferred per frame. 79 * Buffers are this large to deal with high speed wireless devices. 80 * Capped at 1024 as ttymalloc() is limited to this amount. 81 */ 82 #define UMODEMIBUFSIZE 1024 83 #define UMODEMOBUFSIZE 1024 84 85 struct umodem_softc { 86 struct device sc_dev; /* base device */ 87 88 usbd_device_handle sc_udev; /* USB device */ 89 90 int sc_ctl_iface_no; 91 usbd_interface_handle sc_ctl_iface; /* control interface */ 92 usbd_interface_handle sc_data_iface; /* data interface */ 93 94 int sc_cm_cap; /* CM capabilities */ 95 int sc_acm_cap; /* ACM capabilities */ 96 97 int sc_cm_over_data; 98 99 usb_cdc_line_state_t sc_line_state; /* current line state */ 100 u_char sc_dtr; /* current DTR state */ 101 u_char sc_rts; /* current RTS state */ 102 103 struct device *sc_subdev; /* ucom device */ 104 105 u_char sc_opening; /* lock during open */ 106 u_char sc_dying; /* disconnecting */ 107 108 int sc_ctl_notify; /* Notification endpoint */ 109 usbd_pipe_handle sc_notify_pipe; /* Notification pipe */ 110 usb_cdc_notification_t sc_notify_buf; /* Notification structure */ 111 u_char sc_lsr; /* Local status register */ 112 u_char sc_msr; /* Modem status register */ 113 }; 114 115 usbd_status umodem_set_comm_feature(struct umodem_softc *sc, 116 int feature, int state); 117 usbd_status umodem_set_line_coding(struct umodem_softc *sc, 118 usb_cdc_line_state_t *state); 119 120 void umodem_get_status(void *, int portno, u_char *lsr, u_char *msr); 121 void umodem_set(void *, int, int, int); 122 void umodem_dtr(struct umodem_softc *, int); 123 void umodem_rts(struct umodem_softc *, int); 124 void umodem_break(struct umodem_softc *, int); 125 void umodem_set_line_state(struct umodem_softc *); 126 int umodem_param(void *, int, struct termios *); 127 int umodem_ioctl(void *, int, u_long, caddr_t, int, struct proc *); 128 int umodem_open(void *, int portno); 129 void umodem_close(void *, int portno); 130 void umodem_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 131 132 struct ucom_methods umodem_methods = { 133 umodem_get_status, 134 umodem_set, 135 umodem_param, 136 umodem_ioctl, 137 umodem_open, 138 umodem_close, 139 NULL, 140 NULL, 141 }; 142 143 int umodem_match(struct device *, void *, void *); 144 void umodem_attach(struct device *, struct device *, void *); 145 int umodem_detach(struct device *, int); 146 int umodem_activate(struct device *, int); 147 148 void umodem_get_caps(struct usb_attach_arg *, int, int *, int *, int *); 149 150 struct cfdriver umodem_cd = { 151 NULL, "umodem", DV_DULL 152 }; 153 154 const struct cfattach umodem_ca = { 155 sizeof(struct umodem_softc), 156 umodem_match, 157 umodem_attach, 158 umodem_detach, 159 umodem_activate, 160 }; 161 162 void 163 umodem_get_caps(struct usb_attach_arg *uaa, int ctl_iface_no, 164 int *data_iface_no, int *cm_cap, int *acm_cap) 165 { 166 const usb_descriptor_t *desc; 167 const usb_interface_descriptor_t *id; 168 const usb_cdc_cm_descriptor_t *cmd; 169 const usb_cdc_acm_descriptor_t *acmd; 170 const usb_cdc_union_descriptor_t *uniond; 171 usbd_desc_iter_t iter; 172 int current_iface_no = -1; 173 174 *data_iface_no = -1; 175 *cm_cap = *acm_cap = 0; 176 usb_desc_iter_init(uaa->device, &iter); 177 desc = usb_desc_iter_next(&iter); 178 while (desc) { 179 if (desc->bDescriptorType == UDESC_INTERFACE) { 180 id = (usb_interface_descriptor_t *)desc; 181 current_iface_no = id->bInterfaceNumber; 182 if (current_iface_no != ctl_iface_no && 183 id->bInterfaceClass == UICLASS_CDC_DATA && 184 id->bInterfaceSubClass == UISUBCLASS_DATA && 185 *data_iface_no == -1) 186 *data_iface_no = current_iface_no; 187 } 188 if (current_iface_no == ctl_iface_no && 189 desc->bDescriptorType == UDESC_CS_INTERFACE) { 190 switch(desc->bDescriptorSubtype) { 191 case UDESCSUB_CDC_CM: 192 cmd = (usb_cdc_cm_descriptor_t *)desc; 193 *cm_cap = cmd->bmCapabilities; 194 *data_iface_no = cmd->bDataInterface; 195 break; 196 case UDESCSUB_CDC_ACM: 197 acmd = (usb_cdc_acm_descriptor_t *)desc; 198 *acm_cap = acmd->bmCapabilities; 199 break; 200 case UDESCSUB_CDC_UNION: 201 uniond = (usb_cdc_union_descriptor_t *)desc; 202 *data_iface_no = uniond->bSlaveInterface[0]; 203 break; 204 } 205 } 206 desc = usb_desc_iter_next(&iter); 207 } 208 } 209 210 int 211 umodem_match(struct device *parent, void *match, void *aux) 212 { 213 struct usb_attach_arg *uaa = aux; 214 usb_interface_descriptor_t *id; 215 usb_device_descriptor_t *dd; 216 int data_iface_no, cm_cap, acm_cap, ret = UMATCH_NONE; 217 218 if (uaa->iface == NULL) 219 return (ret); 220 221 id = usbd_get_interface_descriptor(uaa->iface); 222 dd = usbd_get_device_descriptor(uaa->device); 223 if (id == NULL || dd == NULL) 224 return (ret); 225 226 ret = UMATCH_NONE; 227 228 /* protocol of 0 so won't match the test below */ 229 if (UGETW(dd->idVendor) == USB_VENDOR_ATMEL && 230 UGETW(dd->idProduct) == USB_PRODUCT_ATMEL_AT91_CDC_ACM) 231 ret = UMATCH_VENDOR_PRODUCT; 232 233 if (UGETW(dd->idVendor) == USB_VENDOR_KYOCERA && 234 UGETW(dd->idProduct) == USB_PRODUCT_KYOCERA_AHK3001V && 235 id->bInterfaceNumber == 0) 236 ret = UMATCH_VENDOR_PRODUCT; 237 238 if (ret == UMATCH_NONE && 239 id->bInterfaceClass == UICLASS_CDC && 240 id->bInterfaceSubClass == UISUBCLASS_ABSTRACT_CONTROL_MODEL && 241 id->bInterfaceProtocol == UIPROTO_CDC_AT) 242 ret = UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO; 243 244 if (ret == UMATCH_NONE) 245 return (ret); 246 247 /* umodem doesn't support devices without a data iface */ 248 umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_no, 249 &cm_cap, &acm_cap); 250 if (data_iface_no == -1) 251 ret = UMATCH_NONE; 252 253 return (ret); 254 } 255 256 void 257 umodem_attach(struct device *parent, struct device *self, void *aux) 258 { 259 struct umodem_softc *sc = (struct umodem_softc *)self; 260 struct usb_attach_arg *uaa = aux; 261 usbd_device_handle dev = uaa->device; 262 usb_interface_descriptor_t *id; 263 usb_endpoint_descriptor_t *ed; 264 usbd_status err; 265 int data_iface_no = 0; 266 int i; 267 struct ucom_attach_args uca; 268 269 sc->sc_udev = dev; 270 sc->sc_ctl_iface = uaa->iface; 271 272 id = usbd_get_interface_descriptor(sc->sc_ctl_iface); 273 //printf("%s: iclass %d/%d\n", sc->sc_dev.dv_xname, 274 // id->bInterfaceClass, id->bInterfaceSubClass); 275 sc->sc_ctl_iface_no = id->bInterfaceNumber; 276 277 /* Get the capabilities. */ 278 umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_no, 279 &sc->sc_cm_cap, &sc->sc_acm_cap); 280 if (data_iface_no == -1) { 281 printf("%s: no data interface\n", 282 sc->sc_dev.dv_xname); 283 goto bad; 284 } 285 286 printf("%s: data interface %d, has %sCM over data, has %sbreak\n", 287 sc->sc_dev.dv_xname, data_iface_no, 288 sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ", 289 sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no "); 290 291 /* Get the data interface too. */ 292 for (i = 0; i < uaa->nifaces; i++) { 293 if (!usbd_iface_claimed(sc->sc_udev, i)) { 294 id = usbd_get_interface_descriptor(uaa->ifaces[i]); 295 if (id != NULL && 296 id->bInterfaceNumber == data_iface_no) { 297 sc->sc_data_iface = uaa->ifaces[i]; 298 usbd_claim_iface(sc->sc_udev, i); 299 } 300 } 301 } 302 if (sc->sc_data_iface == NULL) { 303 printf("%s: no data interface\n", sc->sc_dev.dv_xname); 304 goto bad; 305 } 306 307 /* 308 * Find the bulk endpoints. 309 * Iterate over all endpoints in the data interface and take note. 310 */ 311 uca.bulkin = uca.bulkout = -1; 312 313 id = usbd_get_interface_descriptor(sc->sc_data_iface); 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 sc->sc_dying = 1; 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 err = usbd_abort_pipe(sc->sc_notify_pipe); 441 if (err) 442 printf("%s: abort notify pipe failed: %s\n", 443 sc->sc_dev.dv_xname, usbd_errstr(err)); 444 err = usbd_close_pipe(sc->sc_notify_pipe); 445 if (err) 446 printf("%s: close notify pipe failed: %s\n", 447 sc->sc_dev.dv_xname, usbd_errstr(err)); 448 sc->sc_notify_pipe = NULL; 449 } 450 } 451 452 void 453 umodem_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 454 { 455 struct umodem_softc *sc = priv; 456 u_char mstatus; 457 458 if (sc->sc_dying) 459 return; 460 461 if (status != USBD_NORMAL_COMPLETION) { 462 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 463 return; 464 DPRINTF(("%s: abnormal status: %s\n", sc->sc_dev.dv_xname, 465 usbd_errstr(status))); 466 usbd_clear_endpoint_stall_async(sc->sc_notify_pipe); 467 return; 468 } 469 470 if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { 471 DPRINTF(("%s: unknown message type (%02x) on notify pipe\n", 472 sc->sc_dev.dv_xname, 473 sc->sc_notify_buf.bmRequestType)); 474 return; 475 } 476 477 switch (sc->sc_notify_buf.bNotification) { 478 case UCDC_N_SERIAL_STATE: 479 /* 480 * Set the serial state in ucom driver based on 481 * the bits from the notify message 482 */ 483 if (UGETW(sc->sc_notify_buf.wLength) != 2) { 484 printf("%s: Invalid notification length! (%d)\n", 485 sc->sc_dev.dv_xname, 486 UGETW(sc->sc_notify_buf.wLength)); 487 break; 488 } 489 DPRINTF(("%s: notify bytes = %02x%02x\n", 490 sc->sc_dev.dv_xname, 491 sc->sc_notify_buf.data[0], 492 sc->sc_notify_buf.data[1])); 493 /* Currently, lsr is always zero. */ 494 sc->sc_lsr = sc->sc_msr = 0; 495 mstatus = sc->sc_notify_buf.data[0]; 496 497 if (ISSET(mstatus, UCDC_N_SERIAL_RI)) 498 sc->sc_msr |= UMSR_RI; 499 if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) 500 sc->sc_msr |= UMSR_DSR; 501 if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) 502 sc->sc_msr |= UMSR_DCD; 503 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 504 break; 505 default: 506 DPRINTF(("%s: unknown notify message: %02x\n", 507 sc->sc_dev.dv_xname, 508 sc->sc_notify_buf.bNotification)); 509 break; 510 } 511 } 512 513 void 514 umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 515 { 516 struct umodem_softc *sc = addr; 517 518 DPRINTF(("umodem_get_status:\n")); 519 520 if (lsr != NULL) 521 *lsr = sc->sc_lsr; 522 if (msr != NULL) 523 *msr = sc->sc_msr; 524 } 525 526 int 527 umodem_param(void *addr, int portno, struct termios *t) 528 { 529 struct umodem_softc *sc = addr; 530 usbd_status err; 531 usb_cdc_line_state_t ls; 532 533 DPRINTF(("umodem_param: sc=%p\n", sc)); 534 535 USETDW(ls.dwDTERate, t->c_ospeed); 536 if (ISSET(t->c_cflag, CSTOPB)) 537 ls.bCharFormat = UCDC_STOP_BIT_2; 538 else 539 ls.bCharFormat = UCDC_STOP_BIT_1; 540 if (ISSET(t->c_cflag, PARENB)) { 541 if (ISSET(t->c_cflag, PARODD)) 542 ls.bParityType = UCDC_PARITY_ODD; 543 else 544 ls.bParityType = UCDC_PARITY_EVEN; 545 } else 546 ls.bParityType = UCDC_PARITY_NONE; 547 switch (ISSET(t->c_cflag, CSIZE)) { 548 case CS5: 549 ls.bDataBits = 5; 550 break; 551 case CS6: 552 ls.bDataBits = 6; 553 break; 554 case CS7: 555 ls.bDataBits = 7; 556 break; 557 case CS8: 558 ls.bDataBits = 8; 559 break; 560 } 561 562 err = umodem_set_line_coding(sc, &ls); 563 if (err) { 564 DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err))); 565 return (1); 566 } 567 return (0); 568 } 569 570 int 571 umodem_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag, 572 struct proc *p) 573 { 574 struct umodem_softc *sc = addr; 575 int error = 0; 576 577 if (sc->sc_dying) 578 return (EIO); 579 580 DPRINTF(("umodemioctl: cmd=0x%08lx\n", cmd)); 581 582 switch (cmd) { 583 case USB_GET_CM_OVER_DATA: 584 *(int *)data = sc->sc_cm_over_data; 585 break; 586 587 case USB_SET_CM_OVER_DATA: 588 if (*(int *)data != sc->sc_cm_over_data) { 589 /* XXX change it */ 590 } 591 break; 592 593 default: 594 DPRINTF(("umodemioctl: unknown\n")); 595 error = ENOTTY; 596 break; 597 } 598 599 return (error); 600 } 601 602 void 603 umodem_dtr(struct umodem_softc *sc, int onoff) 604 { 605 DPRINTF(("umodem_modem: onoff=%d\n", onoff)); 606 607 if (sc->sc_dtr == onoff) 608 return; 609 sc->sc_dtr = onoff; 610 611 umodem_set_line_state(sc); 612 } 613 614 void 615 umodem_rts(struct umodem_softc *sc, int onoff) 616 { 617 DPRINTF(("umodem_modem: onoff=%d\n", onoff)); 618 619 if (sc->sc_rts == onoff) 620 return; 621 sc->sc_rts = onoff; 622 623 umodem_set_line_state(sc); 624 } 625 626 void 627 umodem_set_line_state(struct umodem_softc *sc) 628 { 629 usb_device_request_t req; 630 int ls; 631 632 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 633 (sc->sc_rts ? UCDC_LINE_RTS : 0); 634 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 635 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 636 USETW(req.wValue, ls); 637 USETW(req.wIndex, sc->sc_ctl_iface_no); 638 USETW(req.wLength, 0); 639 640 (void)usbd_do_request(sc->sc_udev, &req, 0); 641 642 } 643 644 void 645 umodem_break(struct umodem_softc *sc, int onoff) 646 { 647 usb_device_request_t req; 648 649 DPRINTF(("umodem_break: onoff=%d\n", onoff)); 650 651 if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) 652 return; 653 654 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 655 req.bRequest = UCDC_SEND_BREAK; 656 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 657 USETW(req.wIndex, sc->sc_ctl_iface_no); 658 USETW(req.wLength, 0); 659 660 (void)usbd_do_request(sc->sc_udev, &req, 0); 661 } 662 663 void 664 umodem_set(void *addr, int portno, int reg, int onoff) 665 { 666 struct umodem_softc *sc = addr; 667 668 switch (reg) { 669 case UCOM_SET_DTR: 670 umodem_dtr(sc, onoff); 671 break; 672 case UCOM_SET_RTS: 673 umodem_rts(sc, onoff); 674 break; 675 case UCOM_SET_BREAK: 676 umodem_break(sc, onoff); 677 break; 678 default: 679 break; 680 } 681 } 682 683 usbd_status 684 umodem_set_line_coding(struct umodem_softc *sc, usb_cdc_line_state_t *state) 685 { 686 usb_device_request_t req; 687 usbd_status err; 688 689 DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 690 UGETDW(state->dwDTERate), state->bCharFormat, 691 state->bParityType, state->bDataBits)); 692 693 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 694 DPRINTF(("umodem_set_line_coding: already set\n")); 695 return (USBD_NORMAL_COMPLETION); 696 } 697 698 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 699 req.bRequest = UCDC_SET_LINE_CODING; 700 USETW(req.wValue, 0); 701 USETW(req.wIndex, sc->sc_ctl_iface_no); 702 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 703 704 err = usbd_do_request(sc->sc_udev, &req, state); 705 if (err) { 706 DPRINTF(("umodem_set_line_coding: failed, err=%s\n", 707 usbd_errstr(err))); 708 return (err); 709 } 710 711 sc->sc_line_state = *state; 712 713 return (USBD_NORMAL_COMPLETION); 714 } 715 716 usbd_status 717 umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) 718 { 719 usb_device_request_t req; 720 usbd_status err; 721 usb_cdc_abstract_state_t ast; 722 723 DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature, 724 state)); 725 726 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 727 req.bRequest = UCDC_SET_COMM_FEATURE; 728 USETW(req.wValue, feature); 729 USETW(req.wIndex, sc->sc_ctl_iface_no); 730 USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); 731 USETW(ast.wState, state); 732 733 err = usbd_do_request(sc->sc_udev, &req, &ast); 734 if (err) { 735 DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n", 736 feature, usbd_errstr(err))); 737 return (err); 738 } 739 740 return (USBD_NORMAL_COMPLETION); 741 } 742 743 int 744 umodem_activate(struct device *self, int act) 745 { 746 struct umodem_softc *sc = (struct umodem_softc *)self; 747 int rv = 0; 748 749 switch (act) { 750 case DVACT_DEACTIVATE: 751 sc->sc_dying = 1; 752 if (sc->sc_subdev) 753 rv = config_deactivate(sc->sc_subdev); 754 break; 755 } 756 return (rv); 757 } 758 759 int 760 umodem_detach(struct device *self, int flags) 761 { 762 struct umodem_softc *sc = (struct umodem_softc *)self; 763 int rv = 0; 764 765 DPRINTF(("umodem_detach: sc=%p flags=%d\n", sc, flags)); 766 767 if (sc->sc_subdev != NULL) 768 rv = config_detach(sc->sc_subdev, flags); 769 770 return (rv); 771 } 772