umct.c revision 1.32.24.16
1 /* $NetBSD: umct.c,v 1.32.24.16 2016/06/09 05:06:20 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 1.32.24.16 2016/06/09 05:06:20 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, 307 sc->sc_dev); 308 309 DPRINTF(("umct: in=0x%x out=0x%x intr=0x%x\n", 310 ucaa.ucaa_bulkin, ucaa.ucaa_bulkout, sc->sc_intr_number)); 311 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &ucaa, 312 ucomprint, ucomsubmatch); 313 314 return; 315 } 316 317 void 318 umct_childdet(device_t self, device_t child) 319 { 320 struct umct_softc *sc = device_private(self); 321 322 KASSERT(sc->sc_subdev == child); 323 sc->sc_subdev = NULL; 324 } 325 326 int 327 umct_detach(device_t self, int flags) 328 { 329 struct umct_softc *sc = device_private(self); 330 int rv = 0; 331 332 DPRINTF(("umct_detach: sc=%p flags=%d\n", sc, flags)); 333 334 if (sc->sc_intr_pipe != NULL) { 335 usbd_abort_pipe(sc->sc_intr_pipe); 336 usbd_close_pipe(sc->sc_intr_pipe); 337 kmem_free(sc->sc_intr_buf, sc->sc_isize); 338 sc->sc_intr_pipe = NULL; 339 } 340 341 sc->sc_dying = 1; 342 if (sc->sc_subdev != NULL) 343 rv = config_detach(sc->sc_subdev, flags); 344 345 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 346 sc->sc_dev); 347 348 return rv; 349 } 350 351 int 352 umct_activate(device_t self, enum devact act) 353 { 354 struct umct_softc *sc = device_private(self); 355 356 switch (act) { 357 case DVACT_DEACTIVATE: 358 sc->sc_dying = 1; 359 return 0; 360 default: 361 return EOPNOTSUPP; 362 } 363 } 364 365 void 366 umct_set_line_state(struct umct_softc *sc) 367 { 368 usb_device_request_t req; 369 uByte ls; 370 371 ls = (sc->sc_dtr ? MCR_DTR : 0) | 372 (sc->sc_rts ? MCR_RTS : 0); 373 374 DPRINTF(("umct_set_line_state: DTR=%d,RTS=%d,ls=%02x\n", 375 sc->sc_dtr, sc->sc_rts, ls)); 376 377 req.bmRequestType = UMCT_SET_REQUEST; 378 req.bRequest = REQ_SET_MCR; 379 USETW(req.wValue, 0); 380 USETW(req.wIndex, sc->sc_iface_number); 381 USETW(req.wLength, LENGTH_SET_MCR); 382 383 (void)usbd_do_request(sc->sc_udev, &req, &ls); 384 } 385 386 void 387 umct_set(void *addr, int portno, int reg, int onoff) 388 { 389 struct umct_softc *sc = addr; 390 391 switch (reg) { 392 case UCOM_SET_DTR: 393 umct_dtr(sc, onoff); 394 break; 395 case UCOM_SET_RTS: 396 umct_rts(sc, onoff); 397 break; 398 case UCOM_SET_BREAK: 399 umct_break(sc, onoff); 400 break; 401 default: 402 break; 403 } 404 } 405 406 void 407 umct_dtr(struct umct_softc *sc, int onoff) 408 { 409 410 DPRINTF(("umct_dtr: onoff=%d\n", onoff)); 411 412 if (sc->sc_dtr == onoff) 413 return; 414 sc->sc_dtr = onoff; 415 416 umct_set_line_state(sc); 417 } 418 419 void 420 umct_rts(struct umct_softc *sc, int onoff) 421 { 422 DPRINTF(("umct_rts: onoff=%d\n", onoff)); 423 424 if (sc->sc_rts == onoff) 425 return; 426 sc->sc_rts = onoff; 427 428 umct_set_line_state(sc); 429 } 430 431 void 432 umct_break(struct umct_softc *sc, int onoff) 433 { 434 DPRINTF(("umct_break: onoff=%d\n", onoff)); 435 436 umct_set_lcr(sc, onoff ? sc->last_lcr | LCR_SET_BREAK : 437 sc->last_lcr); 438 } 439 440 void 441 umct_set_lcr(struct umct_softc *sc, u_int data) 442 { 443 usb_device_request_t req; 444 uByte adata; 445 446 adata = data; 447 req.bmRequestType = UMCT_SET_REQUEST; 448 req.bRequest = REQ_SET_LCR; 449 USETW(req.wValue, 0); 450 USETW(req.wIndex, sc->sc_iface_number); 451 USETW(req.wLength, LENGTH_SET_LCR); 452 453 (void)usbd_do_request(sc->sc_udev, &req, &adata); /* XXX should check */ 454 } 455 456 void 457 umct_set_baudrate(struct umct_softc *sc, u_int rate) 458 { 459 usb_device_request_t req; 460 uDWord arate; 461 u_int val; 462 463 if (sc->sc_product == USB_PRODUCT_MCT_SITECOM_USB232 || 464 sc->sc_product == USB_PRODUCT_BELKIN_F5U109) { 465 switch (rate) { 466 case 300: val = 0x01; break; 467 case 600: val = 0x02; break; 468 case 1200: val = 0x03; break; 469 case 2400: val = 0x04; break; 470 case 4800: val = 0x06; break; 471 case 9600: val = 0x08; break; 472 case 19200: val = 0x09; break; 473 case 38400: val = 0x0a; break; 474 case 57600: val = 0x0b; break; 475 case 115200: val = 0x0c; break; 476 default: val = -1; break; 477 } 478 } else { 479 val = UMCT_BAUD_RATE(rate); 480 } 481 USETDW(arate, val); 482 483 req.bmRequestType = UMCT_SET_REQUEST; 484 req.bRequest = REQ_SET_BAUD_RATE; 485 USETW(req.wValue, 0); 486 USETW(req.wIndex, sc->sc_iface_number); 487 USETW(req.wLength, LENGTH_BAUD_RATE); 488 489 (void)usbd_do_request(sc->sc_udev, &req, arate); /* XXX should check */ 490 } 491 492 void 493 umct_init(struct umct_softc *sc) 494 { 495 umct_set_baudrate(sc, 9600); 496 umct_set_lcr(sc, LCR_DATA_BITS_8 | LCR_PARITY_NONE | LCR_STOP_BITS_1); 497 } 498 499 int 500 umct_param(void *addr, int portno, struct termios *t) 501 { 502 struct umct_softc *sc = addr; 503 u_int data = 0; 504 505 DPRINTF(("umct_param: sc=%p\n", sc)); 506 507 DPRINTF(("umct_param: BAUDRATE=%d\n", t->c_ospeed)); 508 509 if (ISSET(t->c_cflag, CSTOPB)) 510 data |= LCR_STOP_BITS_2; 511 else 512 data |= LCR_STOP_BITS_1; 513 if (ISSET(t->c_cflag, PARENB)) { 514 if (ISSET(t->c_cflag, PARODD)) 515 data |= LCR_PARITY_ODD; 516 else 517 data |= LCR_PARITY_EVEN; 518 } else 519 data |= LCR_PARITY_NONE; 520 switch (ISSET(t->c_cflag, CSIZE)) { 521 case CS5: 522 data |= LCR_DATA_BITS_5; 523 break; 524 case CS6: 525 data |= LCR_DATA_BITS_6; 526 break; 527 case CS7: 528 data |= LCR_DATA_BITS_7; 529 break; 530 case CS8: 531 data |= LCR_DATA_BITS_8; 532 break; 533 } 534 535 umct_set_baudrate(sc, t->c_ospeed); 536 537 sc->last_lcr = data; 538 umct_set_lcr(sc, data); 539 540 return 0; 541 } 542 543 int 544 umct_open(void *addr, int portno) 545 { 546 struct umct_softc *sc = addr; 547 int err, lcr_data; 548 549 if (sc->sc_dying) 550 return EIO; 551 552 DPRINTF(("umct_open: sc=%p\n", sc)); 553 554 /* initialize LCR */ 555 lcr_data = LCR_DATA_BITS_8 | LCR_PARITY_NONE | 556 LCR_STOP_BITS_1; 557 umct_set_lcr(sc, lcr_data); 558 559 if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) { 560 sc->sc_status = 0; /* clear status bit */ 561 sc->sc_intr_buf = kmem_alloc(sc->sc_isize, KM_SLEEP); 562 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_intr_number, 563 USBD_SHORT_XFER_OK, &sc->sc_intr_pipe, sc, 564 sc->sc_intr_buf, sc->sc_isize, 565 umct_intr, USBD_DEFAULT_INTERVAL); 566 if (err) { 567 DPRINTF(("%s: cannot open interrupt pipe (%d)\n", 568 device_xname(sc->sc_dev), sc->sc_intr_number)); 569 return EIO; 570 } 571 } 572 if (sc->sc_inendpt != -1 && sc->sc_inpipe == NULL) { 573 sc->sc_inbuf = kmem_alloc(UMCTIBUFSIZE, KM_SLEEP); 574 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_inendpt, 575 USBD_SHORT_XFER_OK, &sc->sc_inpipe, sc, sc->sc_inbuf, 576 UMCTIBUFSIZE, umct_rxintr, USBD_DEFAULT_INTERVAL); 577 if (err) { 578 DPRINTF(("%s: cannot open rx interrupt pipe (%d)\n", 579 device_xname(sc->sc_dev), sc->sc_inendpt)); 580 return EIO; 581 } 582 } 583 584 return 0; 585 } 586 587 void 588 umct_close(void *addr, int portno) 589 { 590 struct umct_softc *sc = addr; 591 int err; 592 593 if (sc->sc_dying) 594 return; 595 596 DPRINTF(("umct_close: close\n")); 597 598 if (sc->sc_intr_pipe != NULL) { 599 err = usbd_abort_pipe(sc->sc_intr_pipe); 600 if (err) 601 printf("%s: abort interrupt pipe failed: %s\n", 602 device_xname(sc->sc_dev), usbd_errstr(err)); 603 err = usbd_close_pipe(sc->sc_intr_pipe); 604 if (err) 605 printf("%s: close interrupt pipe failed: %s\n", 606 device_xname(sc->sc_dev), usbd_errstr(err)); 607 kmem_free(sc->sc_intr_buf, sc->sc_isize); 608 sc->sc_intr_pipe = NULL; 609 } 610 if (sc->sc_inpipe != NULL) { 611 err = usbd_abort_pipe(sc->sc_inpipe); 612 if (err) 613 printf("%s: abort rx interrupt pipe failed: %s\n", 614 device_xname(sc->sc_dev), usbd_errstr(err)); 615 err = usbd_close_pipe(sc->sc_inpipe); 616 if (err) 617 printf("%s: close rx interrupt pipe failed: %s\n", 618 device_xname(sc->sc_dev), usbd_errstr(err)); 619 kmem_free(sc->sc_inbuf, UMCTIBUFSIZE); 620 sc->sc_inpipe = NULL; 621 } 622 } 623 624 void 625 umct_rxintr(struct usbd_xfer *xfer, void *priv, usbd_status status) 626 { 627 struct umct_softc *sc = priv; 628 629 if (sc->sc_dying) 630 return; 631 632 ucomreadcb(xfer, device_private(sc->sc_subdev), status); 633 } 634 635 void 636 umct_intr(struct usbd_xfer *xfer, void *priv, usbd_status status) 637 { 638 struct umct_softc *sc = priv; 639 u_char *tbuf = sc->sc_intr_buf; 640 u_char mstatus; 641 642 if (sc->sc_dying) 643 return; 644 645 if (status != USBD_NORMAL_COMPLETION) { 646 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 647 return; 648 649 DPRINTF(("%s: abnormal status: %s\n", device_xname(sc->sc_dev), 650 usbd_errstr(status))); 651 usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); 652 return; 653 } 654 655 DPRINTF(("%s: umct status = MSR:%02x, LSR:%02x\n", 656 device_xname(sc->sc_dev), tbuf[0],tbuf[1])); 657 658 sc->sc_lsr = sc->sc_msr = 0; 659 mstatus = tbuf[0]; 660 if (ISSET(mstatus, MSR_DSR)) 661 sc->sc_msr |= UMSR_DSR; 662 if (ISSET(mstatus, MSR_DCD)) 663 sc->sc_msr |= UMSR_DCD; 664 ucom_status_change(device_private(sc->sc_subdev)); 665 } 666 667 void 668 umct_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 669 { 670 struct umct_softc *sc = addr; 671 672 DPRINTF(("umct_get_status:\n")); 673 674 if (lsr != NULL) 675 *lsr = sc->sc_lsr; 676 if (msr != NULL) 677 *msr = sc->sc_msr; 678 } 679
Indexes created Thu Oct 02 10:09:58 GMT 2025