umct.c revision 1.32.24.17
1 /* $NetBSD: umct.c,v 1.32.24.17 2016/07/09 20:25:16 skrll Exp $ */ 2 /* 3 * Copyright (c) 2001 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Ichiro FUKUHARA (ichiro (at) ichiro.org). 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* 32 * MCT USB-RS232 Interface Controller 33 * http://www.mct.com.tw/prod/rs232.html 34 * http://www.dlink.com/products/usb/dsbs25 35 */ 36 37 #include <sys/cdefs.h> 38 __KERNEL_RCSID(0, "$NetBSD: umct.c,v 1.32.24.17 2016/07/09 20:25:16 skrll Exp $"); 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/kernel.h> 43 #include <sys/ioctl.h> 44 #include <sys/conf.h> 45 #include <sys/tty.h> 46 #include <sys/file.h> 47 #include <sys/select.h> 48 #include <sys/proc.h> 49 #include <sys/vnode.h> 50 #include <sys/device.h> 51 #include <sys/poll.h> 52 53 #include <dev/usb/usb.h> 54 #include <dev/usb/usbcdc.h> 55 56 #include <dev/usb/usbdi.h> 57 #include <dev/usb/usbdi_util.h> 58 #include <dev/usb/usbdevs.h> 59 #include <dev/usb/usb_quirks.h> 60 61 #include <dev/usb/ucomvar.h> 62 #include <dev/usb/umct.h> 63 64 #ifdef UMCT_DEBUG 65 #define DPRINTFN(n, x) if (umctdebug > (n)) printf x 66 int umctdebug = 0; 67 #else 68 #define DPRINTFN(n, x) 69 #endif 70 #define DPRINTF(x) DPRINTFN(0, x) 71 72 #define UMCT_CONFIG_INDEX 0 73 #define UMCT_IFACE_INDEX 0 74 75 struct umct_softc { 76 device_t sc_dev; /* base device */ 77 struct usbd_device *sc_udev; /* USB device */ 78 struct usbd_interface *sc_iface; /* interface */ 79 int sc_iface_number; /* interface number */ 80 uint16_t sc_product; 81 82 int sc_inendpt; /* data in endpoint */ 83 struct usbd_pipe *sc_inpipe; /* data in pipe */ 84 u_char *sc_inbuf; /* interrupt buffer */ 85 86 int sc_intr_number; /* interrupt number */ 87 struct usbd_pipe *sc_intr_pipe; /* interrupt pipe */ 88 u_char *sc_intr_buf; /* interrupt buffer */ 89 int sc_isize; 90 91 usb_cdc_line_state_t sc_line_state; /* current line state */ 92 u_char sc_dtr; /* current DTR state */ 93 u_char sc_rts; /* current RTS state */ 94 u_char sc_break; /* set break */ 95 96 u_char sc_status; 97 98 device_t sc_subdev; /* ucom device */ 99 100 u_char sc_dying; /* disconnecting */ 101 102 u_char sc_lsr; /* Local status register */ 103 u_char sc_msr; /* umct status register */ 104 105 u_int last_lcr; /* keep lcr register */ 106 }; 107 108 /* 109 * These are the maximum number of bytes transferred per frame. 110 * The output buffer size cannot be increased due to the size encoding. 111 */ 112 #define UMCTIBUFSIZE 256 113 #define UMCTOBUFSIZE 256 114 115 Static void umct_init(struct umct_softc *); 116 Static void umct_set_baudrate(struct umct_softc *, u_int); 117 Static void umct_set_lcr(struct umct_softc *, u_int); 118 Static void umct_intr(struct usbd_xfer *, void *, usbd_status); 119 120 Static void umct_rxintr(struct usbd_xfer *, void *, usbd_status); 121 122 Static void umct_set(void *, int, int, int); 123 Static void umct_dtr(struct umct_softc *, int); 124 Static void umct_rts(struct umct_softc *, int); 125 Static void umct_break(struct umct_softc *, int); 126 Static void umct_set_line_state(struct umct_softc *); 127 Static void umct_get_status(void *, int, u_char *, u_char *); 128 Static int umct_param(void *, int, struct termios *); 129 Static int umct_open(void *, int); 130 Static void umct_close(void *, int); 131 132 struct ucom_methods umct_methods = { 133 .ucom_get_status = umct_get_status, 134 .ucom_set = umct_set, 135 .ucom_param = umct_param, 136 .ucom_ioctl = NULL, 137 .ucom_open = umct_open, 138 .ucom_close = umct_close, 139 .ucom_read = NULL, 140 .ucom_write = NULL, 141 }; 142 143 static const struct usb_devno umct_devs[] = { 144 /* MCT USB-232 Interface Products */ 145 { USB_VENDOR_MCT, USB_PRODUCT_MCT_USB232 }, 146 /* Sitecom USB-232 Products */ 147 { USB_VENDOR_MCT, USB_PRODUCT_MCT_SITECOM_USB232 }, 148 /* D-Link DU-H3SP USB BAY Hub Products */ 149 { USB_VENDOR_MCT, USB_PRODUCT_MCT_DU_H3SP_USB232 }, 150 /* BELKIN F5U109 */ 151 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U109 }, 152 }; 153 #define umct_lookup(v, p) usb_lookup(umct_devs, v, p) 154 155 int umct_match(device_t, cfdata_t, void *); 156 void umct_attach(device_t, device_t, void *); 157 void umct_childdet(device_t, device_t); 158 int umct_detach(device_t, int); 159 int umct_activate(device_t, enum devact); 160 extern struct cfdriver umct_cd; 161 CFATTACH_DECL2_NEW(umct, sizeof(struct umct_softc), umct_match, 162 umct_attach, umct_detach, umct_activate, NULL, umct_childdet); 163 164 int 165 umct_match(device_t parent, cfdata_t match, void *aux) 166 { 167 struct usb_attach_arg *uaa = aux; 168 169 return umct_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ? 170 UMATCH_VENDOR_PRODUCT : UMATCH_NONE; 171 } 172 173 void 174 umct_attach(device_t parent, device_t self, void *aux) 175 { 176 struct umct_softc *sc = device_private(self); 177 struct usb_attach_arg *uaa = aux; 178 struct usbd_device *dev = uaa->uaa_device; 179 usb_config_descriptor_t *cdesc; 180 usb_interface_descriptor_t *id; 181 usb_endpoint_descriptor_t *ed; 182 183 char *devinfop; 184 usbd_status err; 185 int i; 186 struct ucom_attach_args ucaa; 187 188 sc->sc_dev = self; 189 190 aprint_naive("\n"); 191 aprint_normal("\n"); 192 193 devinfop = usbd_devinfo_alloc(dev, 0); 194 aprint_normal_dev(self, "%s\n", devinfop); 195 usbd_devinfo_free(devinfop); 196 197 sc->sc_udev = dev; 198 sc->sc_product = uaa->uaa_product; 199 200 DPRINTF(("\n\numct attach: sc=%p\n", sc)); 201 202 /* initialize endpoints */ 203 ucaa.ucaa_bulkin = ucaa.ucaa_bulkout = -1; 204 sc->sc_intr_number = -1; 205 sc->sc_intr_pipe = NULL; 206 207 /* Move the device into the configured state. */ 208 err = usbd_set_config_index(dev, UMCT_CONFIG_INDEX, 1); 209 if (err) { 210 aprint_error_dev(self, "failed to set configuration, err=%s\n", 211 usbd_errstr(err)); 212 sc->sc_dying = 1; 213 return; 214 } 215 216 /* get the config descriptor */ 217 cdesc = usbd_get_config_descriptor(sc->sc_udev); 218 219 if (cdesc == NULL) { 220 aprint_error_dev(self, 221 "failed to get configuration descriptor\n"); 222 sc->sc_dying = 1; 223 return; 224 } 225 226 /* get the interface */ 227 err = usbd_device2interface_handle(dev, UMCT_IFACE_INDEX, 228 &sc->sc_iface); 229 if (err) { 230 aprint_error_dev(self, "failed to get interface, err=%s\n", 231 usbd_errstr(err)); 232 sc->sc_dying = 1; 233 return; 234 } 235 236 /* Find the bulk{in,out} and interrupt endpoints */ 237 238 id = usbd_get_interface_descriptor(sc->sc_iface); 239 sc->sc_iface_number = id->bInterfaceNumber; 240 241 for (i = 0; i < id->bNumEndpoints; i++) { 242 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 243 if (ed == NULL) { 244 aprint_error_dev(self, 245 "no endpoint descriptor for %d\n", i); 246 sc->sc_dying = 1; 247 return; 248 } 249 250 /* 251 * Input is done via an interrupt endpoint, so we handle 252 * the pipe and pass RX characters up to ucom. Since 253 * we can't rely on the endpoint descriptor order, we'll 254 * check the wMaxPacketSize field to differentiate. 255 */ 256 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 257 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT && 258 UGETW(ed->wMaxPacketSize) != 0x2) { 259 sc->sc_inendpt = ed->bEndpointAddress; 260 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 261 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 262 ucaa.ucaa_bulkout = ed->bEndpointAddress; 263 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 264 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 265 sc->sc_intr_number = ed->bEndpointAddress; 266 sc->sc_isize = UGETW(ed->wMaxPacketSize); 267 } 268 } 269 270 if (sc->sc_inendpt == -1) { 271 aprint_error_dev(self, "Could not find data in\n"); 272 sc->sc_dying = 1; 273 return; 274 } 275 276 if (ucaa.ucaa_bulkout == -1) { 277 aprint_error_dev(self, "Could not find data bulk out\n"); 278 sc->sc_dying = 1; 279 return; 280 } 281 282 if (sc->sc_intr_number == -1) { 283 aprint_error_dev(self, "Could not find interrupt in\n"); 284 sc->sc_dying = 1; 285 return; 286 } 287 288 sc->sc_dtr = sc->sc_rts = 0; 289 ucaa.ucaa_portno = UCOM_UNK_PORTNO; 290 /* ucaa_bulkin, ucaa_bulkout set above */ 291 ucaa.ucaa_ibufsize = UMCTIBUFSIZE; 292 if (sc->sc_product == USB_PRODUCT_MCT_SITECOM_USB232) 293 ucaa.ucaa_obufsize = 16; /* device is broken */ 294 else 295 ucaa.ucaa_obufsize = UMCTOBUFSIZE; 296 ucaa.ucaa_ibufsizepad = UMCTIBUFSIZE; 297 ucaa.ucaa_opkthdrlen = 0; 298 ucaa.ucaa_device = dev; 299 ucaa.ucaa_iface = sc->sc_iface; 300 ucaa.ucaa_methods = &umct_methods; 301 ucaa.ucaa_arg = sc; 302 ucaa.ucaa_info = NULL; 303 304 umct_init(sc); 305 306 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); 307 308 DPRINTF(("umct: in=0x%x out=0x%x intr=0x%x\n", 309 ucaa.ucaa_bulkin, ucaa.ucaa_bulkout, sc->sc_intr_number)); 310 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &ucaa, 311 ucomprint, ucomsubmatch); 312 313 return; 314 } 315 316 void 317 umct_childdet(device_t self, device_t child) 318 { 319 struct umct_softc *sc = device_private(self); 320 321 KASSERT(sc->sc_subdev == child); 322 sc->sc_subdev = NULL; 323 } 324 325 int 326 umct_detach(device_t self, int flags) 327 { 328 struct umct_softc *sc = device_private(self); 329 int rv = 0; 330 331 DPRINTF(("umct_detach: sc=%p flags=%d\n", sc, flags)); 332 333 if (sc->sc_intr_pipe != NULL) { 334 usbd_abort_pipe(sc->sc_intr_pipe); 335 usbd_close_pipe(sc->sc_intr_pipe); 336 kmem_free(sc->sc_intr_buf, sc->sc_isize); 337 sc->sc_intr_pipe = NULL; 338 } 339 340 sc->sc_dying = 1; 341 if (sc->sc_subdev != NULL) 342 rv = config_detach(sc->sc_subdev, flags); 343 344 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); 345 346 return rv; 347 } 348 349 int 350 umct_activate(device_t self, enum devact act) 351 { 352 struct umct_softc *sc = device_private(self); 353 354 switch (act) { 355 case DVACT_DEACTIVATE: 356 sc->sc_dying = 1; 357 return 0; 358 default: 359 return EOPNOTSUPP; 360 } 361 } 362 363 void 364 umct_set_line_state(struct umct_softc *sc) 365 { 366 usb_device_request_t req; 367 uByte ls; 368 369 ls = (sc->sc_dtr ? MCR_DTR : 0) | 370 (sc->sc_rts ? MCR_RTS : 0); 371 372 DPRINTF(("umct_set_line_state: DTR=%d,RTS=%d,ls=%02x\n", 373 sc->sc_dtr, sc->sc_rts, ls)); 374 375 req.bmRequestType = UMCT_SET_REQUEST; 376 req.bRequest = REQ_SET_MCR; 377 USETW(req.wValue, 0); 378 USETW(req.wIndex, sc->sc_iface_number); 379 USETW(req.wLength, LENGTH_SET_MCR); 380 381 (void)usbd_do_request(sc->sc_udev, &req, &ls); 382 } 383 384 void 385 umct_set(void *addr, int portno, int reg, int onoff) 386 { 387 struct umct_softc *sc = addr; 388 389 switch (reg) { 390 case UCOM_SET_DTR: 391 umct_dtr(sc, onoff); 392 break; 393 case UCOM_SET_RTS: 394 umct_rts(sc, onoff); 395 break; 396 case UCOM_SET_BREAK: 397 umct_break(sc, onoff); 398 break; 399 default: 400 break; 401 } 402 } 403 404 void 405 umct_dtr(struct umct_softc *sc, int onoff) 406 { 407 408 DPRINTF(("umct_dtr: onoff=%d\n", onoff)); 409 410 if (sc->sc_dtr == onoff) 411 return; 412 sc->sc_dtr = onoff; 413 414 umct_set_line_state(sc); 415 } 416 417 void 418 umct_rts(struct umct_softc *sc, int onoff) 419 { 420 DPRINTF(("umct_rts: onoff=%d\n", onoff)); 421 422 if (sc->sc_rts == onoff) 423 return; 424 sc->sc_rts = onoff; 425 426 umct_set_line_state(sc); 427 } 428 429 void 430 umct_break(struct umct_softc *sc, int onoff) 431 { 432 DPRINTF(("umct_break: onoff=%d\n", onoff)); 433 434 umct_set_lcr(sc, onoff ? sc->last_lcr | LCR_SET_BREAK : 435 sc->last_lcr); 436 } 437 438 void 439 umct_set_lcr(struct umct_softc *sc, u_int data) 440 { 441 usb_device_request_t req; 442 uByte adata; 443 444 adata = data; 445 req.bmRequestType = UMCT_SET_REQUEST; 446 req.bRequest = REQ_SET_LCR; 447 USETW(req.wValue, 0); 448 USETW(req.wIndex, sc->sc_iface_number); 449 USETW(req.wLength, LENGTH_SET_LCR); 450 451 (void)usbd_do_request(sc->sc_udev, &req, &adata); /* XXX should check */ 452 } 453 454 void 455 umct_set_baudrate(struct umct_softc *sc, u_int rate) 456 { 457 usb_device_request_t req; 458 uDWord arate; 459 u_int val; 460 461 if (sc->sc_product == USB_PRODUCT_MCT_SITECOM_USB232 || 462 sc->sc_product == USB_PRODUCT_BELKIN_F5U109) { 463 switch (rate) { 464 case 300: val = 0x01; break; 465 case 600: val = 0x02; break; 466 case 1200: val = 0x03; break; 467 case 2400: val = 0x04; break; 468 case 4800: val = 0x06; break; 469 case 9600: val = 0x08; break; 470 case 19200: val = 0x09; break; 471 case 38400: val = 0x0a; break; 472 case 57600: val = 0x0b; break; 473 case 115200: val = 0x0c; break; 474 default: val = -1; break; 475 } 476 } else { 477 val = UMCT_BAUD_RATE(rate); 478 } 479 USETDW(arate, val); 480 481 req.bmRequestType = UMCT_SET_REQUEST; 482 req.bRequest = REQ_SET_BAUD_RATE; 483 USETW(req.wValue, 0); 484 USETW(req.wIndex, sc->sc_iface_number); 485 USETW(req.wLength, LENGTH_BAUD_RATE); 486 487 (void)usbd_do_request(sc->sc_udev, &req, arate); /* XXX should check */ 488 } 489 490 void 491 umct_init(struct umct_softc *sc) 492 { 493 umct_set_baudrate(sc, 9600); 494 umct_set_lcr(sc, LCR_DATA_BITS_8 | LCR_PARITY_NONE | LCR_STOP_BITS_1); 495 } 496 497 int 498 umct_param(void *addr, int portno, struct termios *t) 499 { 500 struct umct_softc *sc = addr; 501 u_int data = 0; 502 503 DPRINTF(("umct_param: sc=%p\n", sc)); 504 505 DPRINTF(("umct_param: BAUDRATE=%d\n", t->c_ospeed)); 506 507 if (ISSET(t->c_cflag, CSTOPB)) 508 data |= LCR_STOP_BITS_2; 509 else 510 data |= LCR_STOP_BITS_1; 511 if (ISSET(t->c_cflag, PARENB)) { 512 if (ISSET(t->c_cflag, PARODD)) 513 data |= LCR_PARITY_ODD; 514 else 515 data |= LCR_PARITY_EVEN; 516 } else 517 data |= LCR_PARITY_NONE; 518 switch (ISSET(t->c_cflag, CSIZE)) { 519 case CS5: 520 data |= LCR_DATA_BITS_5; 521 break; 522 case CS6: 523 data |= LCR_DATA_BITS_6; 524 break; 525 case CS7: 526 data |= LCR_DATA_BITS_7; 527 break; 528 case CS8: 529 data |= LCR_DATA_BITS_8; 530 break; 531 } 532 533 umct_set_baudrate(sc, t->c_ospeed); 534 535 sc->last_lcr = data; 536 umct_set_lcr(sc, data); 537 538 return 0; 539 } 540 541 int 542 umct_open(void *addr, int portno) 543 { 544 struct umct_softc *sc = addr; 545 int err, lcr_data; 546 547 if (sc->sc_dying) 548 return EIO; 549 550 DPRINTF(("umct_open: sc=%p\n", sc)); 551 552 /* initialize LCR */ 553 lcr_data = LCR_DATA_BITS_8 | LCR_PARITY_NONE | 554 LCR_STOP_BITS_1; 555 umct_set_lcr(sc, lcr_data); 556 557 if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) { 558 sc->sc_status = 0; /* clear status bit */ 559 sc->sc_intr_buf = kmem_alloc(sc->sc_isize, KM_SLEEP); 560 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_intr_number, 561 USBD_SHORT_XFER_OK, &sc->sc_intr_pipe, sc, 562 sc->sc_intr_buf, sc->sc_isize, 563 umct_intr, USBD_DEFAULT_INTERVAL); 564 if (err) { 565 DPRINTF(("%s: cannot open interrupt pipe (%d)\n", 566 device_xname(sc->sc_dev), sc->sc_intr_number)); 567 return EIO; 568 } 569 } 570 if (sc->sc_inendpt != -1 && sc->sc_inpipe == NULL) { 571 sc->sc_inbuf = kmem_alloc(UMCTIBUFSIZE, KM_SLEEP); 572 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_inendpt, 573 USBD_SHORT_XFER_OK, &sc->sc_inpipe, sc, sc->sc_inbuf, 574 UMCTIBUFSIZE, umct_rxintr, USBD_DEFAULT_INTERVAL); 575 if (err) { 576 DPRINTF(("%s: cannot open rx interrupt pipe (%d)\n", 577 device_xname(sc->sc_dev), sc->sc_inendpt)); 578 return EIO; 579 } 580 } 581 582 return 0; 583 } 584 585 void 586 umct_close(void *addr, int portno) 587 { 588 struct umct_softc *sc = addr; 589 int err; 590 591 if (sc->sc_dying) 592 return; 593 594 DPRINTF(("umct_close: close\n")); 595 596 if (sc->sc_intr_pipe != NULL) { 597 err = usbd_abort_pipe(sc->sc_intr_pipe); 598 if (err) 599 printf("%s: abort interrupt pipe failed: %s\n", 600 device_xname(sc->sc_dev), usbd_errstr(err)); 601 err = usbd_close_pipe(sc->sc_intr_pipe); 602 if (err) 603 printf("%s: close interrupt pipe failed: %s\n", 604 device_xname(sc->sc_dev), usbd_errstr(err)); 605 kmem_free(sc->sc_intr_buf, sc->sc_isize); 606 sc->sc_intr_pipe = NULL; 607 } 608 if (sc->sc_inpipe != NULL) { 609 err = usbd_abort_pipe(sc->sc_inpipe); 610 if (err) 611 printf("%s: abort rx interrupt pipe failed: %s\n", 612 device_xname(sc->sc_dev), usbd_errstr(err)); 613 err = usbd_close_pipe(sc->sc_inpipe); 614 if (err) 615 printf("%s: close rx interrupt pipe failed: %s\n", 616 device_xname(sc->sc_dev), usbd_errstr(err)); 617 kmem_free(sc->sc_inbuf, UMCTIBUFSIZE); 618 sc->sc_inpipe = NULL; 619 } 620 } 621 622 void 623 umct_rxintr(struct usbd_xfer *xfer, void *priv, usbd_status status) 624 { 625 struct umct_softc *sc = priv; 626 627 if (sc->sc_dying) 628 return; 629 630 ucomreadcb(xfer, device_private(sc->sc_subdev), status); 631 } 632 633 void 634 umct_intr(struct usbd_xfer *xfer, void *priv, usbd_status status) 635 { 636 struct umct_softc *sc = priv; 637 u_char *tbuf = sc->sc_intr_buf; 638 u_char mstatus; 639 640 if (sc->sc_dying) 641 return; 642 643 if (status != USBD_NORMAL_COMPLETION) { 644 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 645 return; 646 647 DPRINTF(("%s: abnormal status: %s\n", device_xname(sc->sc_dev), 648 usbd_errstr(status))); 649 usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); 650 return; 651 } 652 653 DPRINTF(("%s: umct status = MSR:%02x, LSR:%02x\n", 654 device_xname(sc->sc_dev), tbuf[0],tbuf[1])); 655 656 sc->sc_lsr = sc->sc_msr = 0; 657 mstatus = tbuf[0]; 658 if (ISSET(mstatus, MSR_DSR)) 659 sc->sc_msr |= UMSR_DSR; 660 if (ISSET(mstatus, MSR_DCD)) 661 sc->sc_msr |= UMSR_DCD; 662 ucom_status_change(device_private(sc->sc_subdev)); 663 } 664 665 void 666 umct_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 667 { 668 struct umct_softc *sc = addr; 669 670 DPRINTF(("umct_get_status:\n")); 671 672 if (lsr != NULL) 673 *lsr = sc->sc_lsr; 674 if (msr != NULL) 675 *msr = sc->sc_msr; 676 } 677
Indexes created Thu Oct 02 10:09:58 GMT 2025