umct.c revision 1.32.22.1
1 /* $NetBSD: umct.c,v 1.32.22.1 2017/04/05 19:54:20 snj 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 1.32.22.1 2017/04/05 19:54:20 snj Exp $"); 39 40 #ifdef _KERNEL_OPT 41 #include "opt_usb.h" 42 #endif 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/kernel.h> 47 #include <sys/ioctl.h> 48 #include <sys/conf.h> 49 #include <sys/tty.h> 50 #include <sys/file.h> 51 #include <sys/select.h> 52 #include <sys/proc.h> 53 #include <sys/vnode.h> 54 #include <sys/device.h> 55 #include <sys/poll.h> 56 57 #include <dev/usb/usb.h> 58 #include <dev/usb/usbcdc.h> 59 60 #include <dev/usb/usbdi.h> 61 #include <dev/usb/usbdi_util.h> 62 #include <dev/usb/usbdevs.h> 63 #include <dev/usb/usb_quirks.h> 64 65 #include <dev/usb/ucomvar.h> 66 #include <dev/usb/umct.h> 67 68 #ifdef UMCT_DEBUG 69 #define DPRINTFN(n, x) if (umctdebug > (n)) printf x 70 int umctdebug = 0; 71 #else 72 #define DPRINTFN(n, x) 73 #endif 74 #define DPRINTF(x) DPRINTFN(0, x) 75 76 #define UMCT_CONFIG_INDEX 0 77 #define UMCT_IFACE_INDEX 0 78 79 struct umct_softc { 80 device_t sc_dev; /* base device */ 81 struct usbd_device *sc_udev; /* USB device */ 82 struct usbd_interface *sc_iface; /* interface */ 83 int sc_iface_number; /* interface number */ 84 uint16_t sc_product; 85 86 int sc_inendpt; /* data in endpoint */ 87 struct usbd_pipe *sc_inpipe; /* data in pipe */ 88 u_char *sc_inbuf; /* interrupt buffer */ 89 90 int sc_intr_number; /* interrupt number */ 91 struct usbd_pipe *sc_intr_pipe; /* interrupt pipe */ 92 u_char *sc_intr_buf; /* interrupt buffer */ 93 int sc_isize; 94 95 usb_cdc_line_state_t sc_line_state; /* current line state */ 96 u_char sc_dtr; /* current DTR state */ 97 u_char sc_rts; /* current RTS state */ 98 u_char sc_break; /* set break */ 99 100 u_char sc_status; 101 102 device_t sc_subdev; /* ucom device */ 103 104 u_char sc_dying; /* disconnecting */ 105 106 u_char sc_lsr; /* Local status register */ 107 u_char sc_msr; /* umct status register */ 108 109 u_int last_lcr; /* keep lcr register */ 110 }; 111 112 /* 113 * These are the maximum number of bytes transferred per frame. 114 * The output buffer size cannot be increased due to the size encoding. 115 */ 116 #define UMCTIBUFSIZE 256 117 #define UMCTOBUFSIZE 256 118 119 Static void umct_init(struct umct_softc *); 120 Static void umct_set_baudrate(struct umct_softc *, u_int); 121 Static void umct_set_lcr(struct umct_softc *, u_int); 122 Static void umct_intr(struct usbd_xfer *, void *, usbd_status); 123 124 Static void umct_rxintr(struct usbd_xfer *, void *, usbd_status); 125 126 Static void umct_set(void *, int, int, int); 127 Static void umct_dtr(struct umct_softc *, int); 128 Static void umct_rts(struct umct_softc *, int); 129 Static void umct_break(struct umct_softc *, int); 130 Static void umct_set_line_state(struct umct_softc *); 131 Static void umct_get_status(void *, int, u_char *, u_char *); 132 Static int umct_param(void *, int, struct termios *); 133 Static int umct_open(void *, int); 134 Static void umct_close(void *, int); 135 136 struct ucom_methods umct_methods = { 137 .ucom_get_status = umct_get_status, 138 .ucom_set = umct_set, 139 .ucom_param = umct_param, 140 .ucom_ioctl = NULL, 141 .ucom_open = umct_open, 142 .ucom_close = umct_close, 143 .ucom_read = NULL, 144 .ucom_write = NULL, 145 }; 146 147 static const struct usb_devno umct_devs[] = { 148 /* MCT USB-232 Interface Products */ 149 { USB_VENDOR_MCT, USB_PRODUCT_MCT_USB232 }, 150 /* Sitecom USB-232 Products */ 151 { USB_VENDOR_MCT, USB_PRODUCT_MCT_SITECOM_USB232 }, 152 /* D-Link DU-H3SP USB BAY Hub Products */ 153 { USB_VENDOR_MCT, USB_PRODUCT_MCT_DU_H3SP_USB232 }, 154 /* BELKIN F5U109 */ 155 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U109 }, 156 }; 157 #define umct_lookup(v, p) usb_lookup(umct_devs, v, p) 158 159 int umct_match(device_t, cfdata_t, void *); 160 void umct_attach(device_t, device_t, void *); 161 void umct_childdet(device_t, device_t); 162 int umct_detach(device_t, int); 163 int umct_activate(device_t, enum devact); 164 extern struct cfdriver umct_cd; 165 CFATTACH_DECL2_NEW(umct, sizeof(struct umct_softc), umct_match, 166 umct_attach, umct_detach, umct_activate, NULL, umct_childdet); 167 168 int 169 umct_match(device_t parent, cfdata_t match, void *aux) 170 { 171 struct usb_attach_arg *uaa = aux; 172 173 return umct_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ? 174 UMATCH_VENDOR_PRODUCT : UMATCH_NONE; 175 } 176 177 void 178 umct_attach(device_t parent, device_t self, void *aux) 179 { 180 struct umct_softc *sc = device_private(self); 181 struct usb_attach_arg *uaa = aux; 182 struct usbd_device *dev = uaa->uaa_device; 183 usb_config_descriptor_t *cdesc; 184 usb_interface_descriptor_t *id; 185 usb_endpoint_descriptor_t *ed; 186 187 char *devinfop; 188 usbd_status err; 189 int i; 190 struct ucom_attach_args ucaa; 191 192 sc->sc_dev = self; 193 194 aprint_naive("\n"); 195 aprint_normal("\n"); 196 197 devinfop = usbd_devinfo_alloc(dev, 0); 198 aprint_normal_dev(self, "%s\n", devinfop); 199 usbd_devinfo_free(devinfop); 200 201 sc->sc_udev = dev; 202 sc->sc_product = uaa->uaa_product; 203 204 DPRINTF(("\n\numct attach: sc=%p\n", sc)); 205 206 /* initialize endpoints */ 207 ucaa.ucaa_bulkin = ucaa.ucaa_bulkout = -1; 208 sc->sc_intr_number = -1; 209 sc->sc_intr_pipe = NULL; 210 211 /* Move the device into the configured state. */ 212 err = usbd_set_config_index(dev, UMCT_CONFIG_INDEX, 1); 213 if (err) { 214 aprint_error_dev(self, "failed to set configuration, err=%s\n", 215 usbd_errstr(err)); 216 sc->sc_dying = 1; 217 return; 218 } 219 220 /* get the config descriptor */ 221 cdesc = usbd_get_config_descriptor(sc->sc_udev); 222 223 if (cdesc == NULL) { 224 aprint_error_dev(self, 225 "failed to get configuration descriptor\n"); 226 sc->sc_dying = 1; 227 return; 228 } 229 230 /* get the interface */ 231 err = usbd_device2interface_handle(dev, UMCT_IFACE_INDEX, 232 &sc->sc_iface); 233 if (err) { 234 aprint_error_dev(self, "failed to get interface, err=%s\n", 235 usbd_errstr(err)); 236 sc->sc_dying = 1; 237 return; 238 } 239 240 /* Find the bulk{in,out} and interrupt endpoints */ 241 242 id = usbd_get_interface_descriptor(sc->sc_iface); 243 sc->sc_iface_number = id->bInterfaceNumber; 244 245 for (i = 0; i < id->bNumEndpoints; i++) { 246 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 247 if (ed == NULL) { 248 aprint_error_dev(self, 249 "no endpoint descriptor for %d\n", i); 250 sc->sc_dying = 1; 251 return; 252 } 253 254 /* 255 * Input is done via an interrupt endpoint, so we handle 256 * the pipe and pass RX characters up to ucom. Since 257 * we can't rely on the endpoint descriptor order, we'll 258 * check the wMaxPacketSize field to differentiate. 259 */ 260 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 261 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT && 262 UGETW(ed->wMaxPacketSize) != 0x2) { 263 sc->sc_inendpt = ed->bEndpointAddress; 264 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 265 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 266 ucaa.ucaa_bulkout = ed->bEndpointAddress; 267 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 268 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 269 sc->sc_intr_number = ed->bEndpointAddress; 270 sc->sc_isize = UGETW(ed->wMaxPacketSize); 271 } 272 } 273 274 if (sc->sc_inendpt == -1) { 275 aprint_error_dev(self, "Could not find data in\n"); 276 sc->sc_dying = 1; 277 return; 278 } 279 280 if (ucaa.ucaa_bulkout == -1) { 281 aprint_error_dev(self, "Could not find data bulk out\n"); 282 sc->sc_dying = 1; 283 return; 284 } 285 286 if (sc->sc_intr_number == -1) { 287 aprint_error_dev(self, "Could not find interrupt in\n"); 288 sc->sc_dying = 1; 289 return; 290 } 291 292 sc->sc_dtr = sc->sc_rts = 0; 293 ucaa.ucaa_portno = UCOM_UNK_PORTNO; 294 /* ucaa_bulkin, ucaa_bulkout set above */ 295 ucaa.ucaa_ibufsize = UMCTIBUFSIZE; 296 if (sc->sc_product == USB_PRODUCT_MCT_SITECOM_USB232) 297 ucaa.ucaa_obufsize = 16; /* device is broken */ 298 else 299 ucaa.ucaa_obufsize = UMCTOBUFSIZE; 300 ucaa.ucaa_ibufsizepad = UMCTIBUFSIZE; 301 ucaa.ucaa_opkthdrlen = 0; 302 ucaa.ucaa_device = dev; 303 ucaa.ucaa_iface = sc->sc_iface; 304 ucaa.ucaa_methods = &umct_methods; 305 ucaa.ucaa_arg = sc; 306 ucaa.ucaa_info = NULL; 307 308 umct_init(sc); 309 310 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); 311 312 DPRINTF(("umct: in=0x%x out=0x%x intr=0x%x\n", 313 ucaa.ucaa_bulkin, ucaa.ucaa_bulkout, sc->sc_intr_number)); 314 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &ucaa, 315 ucomprint, ucomsubmatch); 316 317 return; 318 } 319 320 void 321 umct_childdet(device_t self, device_t child) 322 { 323 struct umct_softc *sc = device_private(self); 324 325 KASSERT(sc->sc_subdev == child); 326 sc->sc_subdev = NULL; 327 } 328 329 int 330 umct_detach(device_t self, int flags) 331 { 332 struct umct_softc *sc = device_private(self); 333 int rv = 0; 334 335 DPRINTF(("umct_detach: sc=%p flags=%d\n", sc, flags)); 336 337 if (sc->sc_intr_pipe != NULL) { 338 usbd_abort_pipe(sc->sc_intr_pipe); 339 usbd_close_pipe(sc->sc_intr_pipe); 340 kmem_free(sc->sc_intr_buf, sc->sc_isize); 341 sc->sc_intr_pipe = NULL; 342 } 343 344 sc->sc_dying = 1; 345 if (sc->sc_subdev != NULL) 346 rv = config_detach(sc->sc_subdev, flags); 347 348 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); 349 350 return rv; 351 } 352 353 int 354 umct_activate(device_t self, enum devact act) 355 { 356 struct umct_softc *sc = device_private(self); 357 358 switch (act) { 359 case DVACT_DEACTIVATE: 360 sc->sc_dying = 1; 361 return 0; 362 default: 363 return EOPNOTSUPP; 364 } 365 } 366 367 void 368 umct_set_line_state(struct umct_softc *sc) 369 { 370 usb_device_request_t req; 371 uByte ls; 372 373 ls = (sc->sc_dtr ? MCR_DTR : 0) | 374 (sc->sc_rts ? MCR_RTS : 0); 375 376 DPRINTF(("umct_set_line_state: DTR=%d,RTS=%d,ls=%02x\n", 377 sc->sc_dtr, sc->sc_rts, ls)); 378 379 req.bmRequestType = UMCT_SET_REQUEST; 380 req.bRequest = REQ_SET_MCR; 381 USETW(req.wValue, 0); 382 USETW(req.wIndex, sc->sc_iface_number); 383 USETW(req.wLength, LENGTH_SET_MCR); 384 385 (void)usbd_do_request(sc->sc_udev, &req, &ls); 386 } 387 388 void 389 umct_set(void *addr, int portno, int reg, int onoff) 390 { 391 struct umct_softc *sc = addr; 392 393 switch (reg) { 394 case UCOM_SET_DTR: 395 umct_dtr(sc, onoff); 396 break; 397 case UCOM_SET_RTS: 398 umct_rts(sc, onoff); 399 break; 400 case UCOM_SET_BREAK: 401 umct_break(sc, onoff); 402 break; 403 default: 404 break; 405 } 406 } 407 408 void 409 umct_dtr(struct umct_softc *sc, int onoff) 410 { 411 412 DPRINTF(("umct_dtr: onoff=%d\n", onoff)); 413 414 if (sc->sc_dtr == onoff) 415 return; 416 sc->sc_dtr = onoff; 417 418 umct_set_line_state(sc); 419 } 420 421 void 422 umct_rts(struct umct_softc *sc, int onoff) 423 { 424 DPRINTF(("umct_rts: onoff=%d\n", onoff)); 425 426 if (sc->sc_rts == onoff) 427 return; 428 sc->sc_rts = onoff; 429 430 umct_set_line_state(sc); 431 } 432 433 void 434 umct_break(struct umct_softc *sc, int onoff) 435 { 436 DPRINTF(("umct_break: onoff=%d\n", onoff)); 437 438 umct_set_lcr(sc, onoff ? sc->last_lcr | LCR_SET_BREAK : 439 sc->last_lcr); 440 } 441 442 void 443 umct_set_lcr(struct umct_softc *sc, u_int data) 444 { 445 usb_device_request_t req; 446 uByte adata; 447 448 adata = data; 449 req.bmRequestType = UMCT_SET_REQUEST; 450 req.bRequest = REQ_SET_LCR; 451 USETW(req.wValue, 0); 452 USETW(req.wIndex, sc->sc_iface_number); 453 USETW(req.wLength, LENGTH_SET_LCR); 454 455 (void)usbd_do_request(sc->sc_udev, &req, &adata); /* XXX should check */ 456 } 457 458 void 459 umct_set_baudrate(struct umct_softc *sc, u_int rate) 460 { 461 usb_device_request_t req; 462 uDWord arate; 463 u_int val; 464 465 if (sc->sc_product == USB_PRODUCT_MCT_SITECOM_USB232 || 466 sc->sc_product == USB_PRODUCT_BELKIN_F5U109) { 467 switch (rate) { 468 case 300: val = 0x01; break; 469 case 600: val = 0x02; break; 470 case 1200: val = 0x03; break; 471 case 2400: val = 0x04; break; 472 case 4800: val = 0x06; break; 473 case 9600: val = 0x08; break; 474 case 19200: val = 0x09; break; 475 case 38400: val = 0x0a; break; 476 case 57600: val = 0x0b; break; 477 case 115200: val = 0x0c; break; 478 default: val = -1; break; 479 } 480 } else { 481 val = UMCT_BAUD_RATE(rate); 482 } 483 USETDW(arate, val); 484 485 req.bmRequestType = UMCT_SET_REQUEST; 486 req.bRequest = REQ_SET_BAUD_RATE; 487 USETW(req.wValue, 0); 488 USETW(req.wIndex, sc->sc_iface_number); 489 USETW(req.wLength, LENGTH_BAUD_RATE); 490 491 (void)usbd_do_request(sc->sc_udev, &req, arate); /* XXX should check */ 492 } 493 494 void 495 umct_init(struct umct_softc *sc) 496 { 497 umct_set_baudrate(sc, 9600); 498 umct_set_lcr(sc, LCR_DATA_BITS_8 | LCR_PARITY_NONE | LCR_STOP_BITS_1); 499 } 500 501 int 502 umct_param(void *addr, int portno, struct termios *t) 503 { 504 struct umct_softc *sc = addr; 505 u_int data = 0; 506 507 DPRINTF(("umct_param: sc=%p\n", sc)); 508 509 DPRINTF(("umct_param: BAUDRATE=%d\n", t->c_ospeed)); 510 511 if (ISSET(t->c_cflag, CSTOPB)) 512 data |= LCR_STOP_BITS_2; 513 else 514 data |= LCR_STOP_BITS_1; 515 if (ISSET(t->c_cflag, PARENB)) { 516 if (ISSET(t->c_cflag, PARODD)) 517 data |= LCR_PARITY_ODD; 518 else 519 data |= LCR_PARITY_EVEN; 520 } else 521 data |= LCR_PARITY_NONE; 522 switch (ISSET(t->c_cflag, CSIZE)) { 523 case CS5: 524 data |= LCR_DATA_BITS_5; 525 break; 526 case CS6: 527 data |= LCR_DATA_BITS_6; 528 break; 529 case CS7: 530 data |= LCR_DATA_BITS_7; 531 break; 532 case CS8: 533 data |= LCR_DATA_BITS_8; 534 break; 535 } 536 537 umct_set_baudrate(sc, t->c_ospeed); 538 539 sc->last_lcr = data; 540 umct_set_lcr(sc, data); 541 542 return 0; 543 } 544 545 int 546 umct_open(void *addr, int portno) 547 { 548 struct umct_softc *sc = addr; 549 int err, lcr_data; 550 551 if (sc->sc_dying) 552 return EIO; 553 554 DPRINTF(("umct_open: sc=%p\n", sc)); 555 556 /* initialize LCR */ 557 lcr_data = LCR_DATA_BITS_8 | LCR_PARITY_NONE | 558 LCR_STOP_BITS_1; 559 umct_set_lcr(sc, lcr_data); 560 561 if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) { 562 sc->sc_status = 0; /* clear status bit */ 563 sc->sc_intr_buf = kmem_alloc(sc->sc_isize, KM_SLEEP); 564 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_intr_number, 565 USBD_SHORT_XFER_OK, &sc->sc_intr_pipe, sc, 566 sc->sc_intr_buf, sc->sc_isize, 567 umct_intr, USBD_DEFAULT_INTERVAL); 568 if (err) { 569 DPRINTF(("%s: cannot open interrupt pipe (%d)\n", 570 device_xname(sc->sc_dev), sc->sc_intr_number)); 571 return EIO; 572 } 573 } 574 if (sc->sc_inendpt != -1 && sc->sc_inpipe == NULL) { 575 sc->sc_inbuf = kmem_alloc(UMCTIBUFSIZE, KM_SLEEP); 576 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_inendpt, 577 USBD_SHORT_XFER_OK, &sc->sc_inpipe, sc, sc->sc_inbuf, 578 UMCTIBUFSIZE, umct_rxintr, USBD_DEFAULT_INTERVAL); 579 if (err) { 580 DPRINTF(("%s: cannot open rx interrupt pipe (%d)\n", 581 device_xname(sc->sc_dev), sc->sc_inendpt)); 582 return EIO; 583 } 584 } 585 586 return 0; 587 } 588 589 void 590 umct_close(void *addr, int portno) 591 { 592 struct umct_softc *sc = addr; 593 int err; 594 595 if (sc->sc_dying) 596 return; 597 598 DPRINTF(("umct_close: close\n")); 599 600 if (sc->sc_intr_pipe != NULL) { 601 err = usbd_abort_pipe(sc->sc_intr_pipe); 602 if (err) 603 printf("%s: abort interrupt pipe failed: %s\n", 604 device_xname(sc->sc_dev), usbd_errstr(err)); 605 err = usbd_close_pipe(sc->sc_intr_pipe); 606 if (err) 607 printf("%s: close interrupt pipe failed: %s\n", 608 device_xname(sc->sc_dev), usbd_errstr(err)); 609 kmem_free(sc->sc_intr_buf, sc->sc_isize); 610 sc->sc_intr_pipe = NULL; 611 } 612 if (sc->sc_inpipe != NULL) { 613 err = usbd_abort_pipe(sc->sc_inpipe); 614 if (err) 615 printf("%s: abort rx interrupt pipe failed: %s\n", 616 device_xname(sc->sc_dev), usbd_errstr(err)); 617 err = usbd_close_pipe(sc->sc_inpipe); 618 if (err) 619 printf("%s: close rx interrupt pipe failed: %s\n", 620 device_xname(sc->sc_dev), usbd_errstr(err)); 621 kmem_free(sc->sc_inbuf, UMCTIBUFSIZE); 622 sc->sc_inpipe = NULL; 623 } 624 } 625 626 void 627 umct_rxintr(struct usbd_xfer *xfer, void *priv, usbd_status status) 628 { 629 struct umct_softc *sc = priv; 630 631 if (sc->sc_dying) 632 return; 633 634 ucomreadcb(xfer, device_private(sc->sc_subdev), status); 635 } 636 637 void 638 umct_intr(struct usbd_xfer *xfer, void *priv, usbd_status status) 639 { 640 struct umct_softc *sc = priv; 641 u_char *tbuf = sc->sc_intr_buf; 642 u_char mstatus; 643 644 if (sc->sc_dying) 645 return; 646 647 if (status != USBD_NORMAL_COMPLETION) { 648 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 649 return; 650 651 DPRINTF(("%s: abnormal status: %s\n", device_xname(sc->sc_dev), 652 usbd_errstr(status))); 653 usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); 654 return; 655 } 656 657 DPRINTF(("%s: umct status = MSR:%02x, LSR:%02x\n", 658 device_xname(sc->sc_dev), tbuf[0],tbuf[1])); 659 660 sc->sc_lsr = sc->sc_msr = 0; 661 mstatus = tbuf[0]; 662 if (ISSET(mstatus, MSR_DSR)) 663 sc->sc_msr |= UMSR_DSR; 664 if (ISSET(mstatus, MSR_DCD)) 665 sc->sc_msr |= UMSR_DCD; 666 ucom_status_change(device_private(sc->sc_subdev)); 667 } 668 669 void 670 umct_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 671 { 672 struct umct_softc *sc = addr; 673 674 DPRINTF(("umct_get_status:\n")); 675 676 if (lsr != NULL) 677 *lsr = sc->sc_lsr; 678 if (msr != NULL) 679 *msr = sc->sc_msr; 680 } 681
Indexes created Thu Oct 02 10:09:58 GMT 2025