Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/usbmisc/ubsa/ubsa.c
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1 /*- 2 * Copyright (c) 2002, Alexander Kabaev <kan.FreeBSD.org>. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 /* 28 * Copyright (c) 2001 The NetBSD Foundation, Inc. 29 * All rights reserved. 30 * 31 * This code is derived from software contributed to The NetBSD Foundation 32 * by Ichiro FUKUHARA (ichiro@ichiro.org). 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 3. All advertising materials mentioning features or use of this software 43 * must display the following acknowledgement: 44 * This product includes software developed by the NetBSD 45 * Foundation, Inc. and its contributors. 46 * 4. Neither the name of The NetBSD Foundation nor the names of its 47 * contributors may be used to endorse or promote products derived 48 * from this software without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 51 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 52 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 53 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 54 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 55 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 56 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 57 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 58 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 59 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 60 * POSSIBILITY OF SUCH DAMAGE. 61 * 62 * $FreeBSD: src/sys/dev/usb/ubsa.c,v 1.11 2003/11/16 12:13:39 akiyama Exp $ 63 */ 64 65 #include <sys/param.h> 66 #include <sys/systm.h> 67 #include <sys/kernel.h> 68 #include <sys/malloc.h> 69 #include <sys/bus.h> 70 #include <sys/fcntl.h> 71 #include <sys/interrupt.h> 72 #include <sys/conf.h> 73 #include <sys/tty.h> 74 #include <sys/file.h> 75 #include <sys/select.h> 76 #include <sys/proc.h> 77 #include <sys/poll.h> 78 #include <sys/sysctl.h> 79 80 #include <bus/usb/usb.h> 81 #include <bus/usb/usbcdc.h> 82 83 #include <bus/usb/usbdi.h> 84 #include <bus/usb/usbdi_util.h> 85 #include <bus/usb/usb_quirks.h> 86 87 #include "../ucom/ucomvar.h" 88 89 #ifdef USB_DEBUG 90 static int ubsadebug = 0; 91 SYSCTL_NODE(_hw_usb, OID_AUTO, ubsa, CTLFLAG_RW, 0, "USB ubsa"); 92 SYSCTL_INT(_hw_usb_ubsa, OID_AUTO, debug, CTLFLAG_RW, 93 &ubsadebug, 0, "ubsa debug level"); 94 95 #define DPRINTFN(n, x) do { \ 96 if (ubsadebug > (n)) \ 97 kprintf x; \ 98 } while (0) 99 #else 100 #define DPRINTFN(n, x) 101 #endif 102 #define DPRINTF(x) DPRINTFN(0, x) 103 104 #define UBSA_MODVER 1 /* module version */ 105 106 #define UBSA_CONFIG_INDEX 1 107 #define UBSA_IFACE_INDEX 0 108 109 #define UBSA_INTR_INTERVAL 100 /* ms */ 110 111 #define UBSA_SET_BAUDRATE 0x00 112 #define UBSA_SET_STOP_BITS 0x01 113 #define UBSA_SET_DATA_BITS 0x02 114 #define UBSA_SET_PARITY 0x03 115 #define UBSA_SET_DTR 0x0A 116 #define UBSA_SET_RTS 0x0B 117 #define UBSA_SET_BREAK 0x0C 118 #define UBSA_SET_FLOW_CTRL 0x10 119 120 #define UBSA_PARITY_NONE 0x00 121 #define UBSA_PARITY_EVEN 0x01 122 #define UBSA_PARITY_ODD 0x02 123 #define UBSA_PARITY_MARK 0x03 124 #define UBSA_PARITY_SPACE 0x04 125 126 #define UBSA_FLOW_NONE 0x0000 127 #define UBSA_FLOW_OCTS 0x0001 128 #define UBSA_FLOW_ODSR 0x0002 129 #define UBSA_FLOW_IDSR 0x0004 130 #define UBSA_FLOW_IDTR 0x0008 131 #define UBSA_FLOW_IRTS 0x0010 132 #define UBSA_FLOW_ORTS 0x0020 133 #define UBSA_FLOW_UNKNOWN 0x0040 134 #define UBSA_FLOW_OXON 0x0080 135 #define UBSA_FLOW_IXON 0x0100 136 137 /* line status register */ 138 #define UBSA_LSR_TSRE 0x40 /* Transmitter empty: byte sent */ 139 #define UBSA_LSR_TXRDY 0x20 /* Transmitter buffer empty */ 140 #define UBSA_LSR_BI 0x10 /* Break detected */ 141 #define UBSA_LSR_FE 0x08 /* Framing error: bad stop bit */ 142 #define UBSA_LSR_PE 0x04 /* Parity error */ 143 #define UBSA_LSR_OE 0x02 /* Overrun, lost incoming byte */ 144 #define UBSA_LSR_RXRDY 0x01 /* Byte ready in Receive Buffer */ 145 #define UBSA_LSR_RCV_MASK 0x1f /* Mask for incoming data or error */ 146 147 /* modem status register */ 148 /* All deltas are from the last read of the MSR. */ 149 #define UBSA_MSR_DCD 0x80 /* Current Data Carrier Detect */ 150 #define UBSA_MSR_RI 0x40 /* Current Ring Indicator */ 151 #define UBSA_MSR_DSR 0x20 /* Current Data Set Ready */ 152 #define UBSA_MSR_CTS 0x10 /* Current Clear to Send */ 153 #define UBSA_MSR_DDCD 0x08 /* DCD has changed state */ 154 #define UBSA_MSR_TERI 0x04 /* RI has toggled low to high */ 155 #define UBSA_MSR_DDSR 0x02 /* DSR has changed state */ 156 #define UBSA_MSR_DCTS 0x01 /* CTS has changed state */ 157 158 struct ubsa_softc { 159 struct ucom_softc sc_ucom; 160 161 int sc_iface_number; /* interface number */ 162 163 usbd_interface_handle sc_intr_iface; /* interrupt interface */ 164 int sc_intr_number; /* interrupt number */ 165 usbd_pipe_handle sc_intr_pipe; /* interrupt pipe */ 166 u_char *sc_intr_buf; /* interrupt buffer */ 167 int sc_isize; 168 169 u_char sc_dtr; /* current DTR state */ 170 u_char sc_rts; /* current RTS state */ 171 172 u_char sc_lsr; /* Local status register */ 173 u_char sc_msr; /* ubsa status register */ 174 }; 175 176 static void ubsa_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 177 static void ubsa_notify(void *); 178 179 static void ubsa_get_status(void *, int, u_char *, u_char *); 180 static void ubsa_set(void *, int, int, int); 181 static int ubsa_param(void *, int, struct termios *); 182 static int ubsa_open(void *, int); 183 static void ubsa_close(void *, int); 184 185 static int ubsa_request(struct ubsa_softc *, u_int8_t, u_int16_t); 186 static void ubsa_dtr(struct ubsa_softc *, int); 187 static void ubsa_rts(struct ubsa_softc *, int); 188 static void ubsa_baudrate(struct ubsa_softc *, speed_t); 189 static void ubsa_parity(struct ubsa_softc *, tcflag_t); 190 static void ubsa_databits(struct ubsa_softc *, tcflag_t); 191 static void ubsa_stopbits(struct ubsa_softc *, tcflag_t); 192 static void ubsa_flow(struct ubsa_softc *, tcflag_t, tcflag_t); 193 194 struct ucom_callback ubsa_callback = { 195 ubsa_get_status, 196 ubsa_set, 197 ubsa_param, 198 NULL, 199 ubsa_open, 200 ubsa_close, 201 NULL, 202 NULL 203 }; 204 205 static const struct usb_devno ubsa_devs [] = { 206 { USB_DEVICE(0x050d, 0x0103) }, /* Belkin F5U103 serial adapter */ 207 { USB_DEVICE(0x050d, 0x1203) }, /* Belkin F5U120-PC hub */ 208 { USB_DEVICE(0x0565, 0x0001) }, /* Peracom serial converter */ 209 { USB_DEVICE(0x056c, 0x8007) }, /* e-TEK Labs serial port */ 210 { USB_DEVICE(0x0921, 0x1001) }, /* GoHubs GoCOM232 serial converter */ 211 { USB_DEVICE(0x0921, 0x1200) }, /* HandyTech's Braille displays */ 212 }; 213 214 static device_probe_t ubsa_match; 215 static device_attach_t ubsa_attach; 216 static device_detach_t ubsa_detach; 217 218 static device_method_t ubsa_methods[] = { 219 /* Device interface */ 220 DEVMETHOD(device_probe, ubsa_match), 221 DEVMETHOD(device_attach, ubsa_attach), 222 DEVMETHOD(device_detach, ubsa_detach), 223 DEVMETHOD_END 224 }; 225 226 static driver_t ubsa_driver = { 227 "ucom", 228 ubsa_methods, 229 sizeof (struct ubsa_softc) 230 }; 231 232 DRIVER_MODULE(ubsa, uhub, ubsa_driver, ucom_devclass, usbd_driver_load, NULL); 233 MODULE_DEPEND(ubsa, usb, 1, 1, 1); 234 MODULE_DEPEND(ubsa, ucom, UCOM_MINVER, UCOM_PREFVER, UCOM_MAXVER); 235 MODULE_VERSION(ubsa, UBSA_MODVER); 236 237 static int 238 ubsa_match(device_t self) 239 { 240 struct usb_attach_arg *uaa = device_get_ivars(self); 241 242 if (uaa->iface != NULL) 243 return (UMATCH_NONE); 244 245 return (usb_lookup(ubsa_devs, uaa->vendor, uaa->product) != NULL ? 246 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 247 } 248 249 static int 250 ubsa_attach(device_t self) 251 { 252 struct ubsa_softc *sc = device_get_softc(self); 253 struct usb_attach_arg *uaa = device_get_ivars(self); 254 usbd_device_handle dev; 255 struct ucom_softc *ucom; 256 usb_config_descriptor_t *cdesc; 257 usb_interface_descriptor_t *id; 258 usb_endpoint_descriptor_t *ed; 259 usbd_status err; 260 int i; 261 262 dev = uaa->device; 263 ucom = &sc->sc_ucom; 264 bzero(sc, sizeof (struct ubsa_softc)); 265 266 /* 267 * initialize rts, dtr variables to something 268 * different from boolean 0, 1 269 */ 270 sc->sc_dtr = -1; 271 sc->sc_rts = -1; 272 273 ucom->sc_dev = self; 274 ucom->sc_udev = dev; 275 ucom->sc_iface = uaa->iface; 276 277 DPRINTF(("ubsa attach: sc = %p\n", sc)); 278 279 /* initialize endpoints */ 280 ucom->sc_bulkin_no = ucom->sc_bulkout_no = -1; 281 sc->sc_intr_number = -1; 282 sc->sc_intr_pipe = NULL; 283 284 /* Move the device into the configured state. */ 285 err = usbd_set_config_index(dev, UBSA_CONFIG_INDEX, 1); 286 if (err) { 287 device_printf(ucom->sc_dev, "failed to set configuration: %s\n", 288 usbd_errstr(err)); 289 ucom->sc_dying = 1; 290 goto error; 291 } 292 293 /* get the config descriptor */ 294 cdesc = usbd_get_config_descriptor(ucom->sc_udev); 295 296 if (cdesc == NULL) { 297 device_printf(ucom->sc_dev, "failed to get configuration " 298 "descriptor\n"); 299 ucom->sc_dying = 1; 300 goto error; 301 } 302 303 /* get the first interface */ 304 err = usbd_device2interface_handle(dev, UBSA_IFACE_INDEX, 305 &ucom->sc_iface); 306 if (err) { 307 device_printf(ucom->sc_dev, "failed to get interface: %s\n", 308 usbd_errstr(err)); 309 ucom->sc_dying = 1; 310 goto error; 311 } 312 313 /* Find the endpoints */ 314 315 id = usbd_get_interface_descriptor(ucom->sc_iface); 316 sc->sc_iface_number = id->bInterfaceNumber; 317 318 for (i = 0; i < id->bNumEndpoints; i++) { 319 ed = usbd_interface2endpoint_descriptor(ucom->sc_iface, i); 320 if (ed == NULL) { 321 device_printf(ucom->sc_dev, "no endpoint descriptor " 322 "for %d\n", i); 323 ucom->sc_dying = 1; 324 goto error; 325 } 326 327 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 328 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 329 sc->sc_intr_number = ed->bEndpointAddress; 330 sc->sc_isize = UGETW(ed->wMaxPacketSize); 331 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 332 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 333 ucom->sc_bulkin_no = ed->bEndpointAddress; 334 ucom->sc_ibufsize = UGETW(ed->wMaxPacketSize); 335 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 336 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 337 ucom->sc_bulkout_no = ed->bEndpointAddress; 338 ucom->sc_obufsize = UGETW(ed->wMaxPacketSize); 339 } 340 } 341 342 if (sc->sc_intr_number == -1) { 343 device_printf(ucom->sc_dev, "could not find interrupt in\n"); 344 ucom->sc_dying = 1; 345 goto error; 346 } 347 348 /* keep interface for interrupt */ 349 sc->sc_intr_iface = ucom->sc_iface; 350 351 if (ucom->sc_bulkin_no == -1) { 352 device_printf(ucom->sc_dev, "could not find data bulk in\n"); 353 ucom->sc_dying = 1; 354 goto error; 355 } 356 357 if (ucom->sc_bulkout_no == -1) { 358 device_printf(ucom->sc_dev, "could not find data bulk out\n"); 359 ucom->sc_dying = 1; 360 goto error; 361 } 362 363 ucom->sc_parent = sc; 364 ucom->sc_portno = UCOM_UNK_PORTNO; 365 /* bulkin, bulkout set above */ 366 ucom->sc_ibufsizepad = ucom->sc_ibufsize; 367 ucom->sc_opkthdrlen = 0; 368 ucom->sc_callback = &ubsa_callback; 369 370 DPRINTF(("ubsa: in = 0x%x, out = 0x%x, intr = 0x%x\n", 371 ucom->sc_bulkin_no, ucom->sc_bulkout_no, sc->sc_intr_number)); 372 373 ucom_attach(ucom); 374 375 return 0; 376 377 error: 378 return ENXIO; 379 } 380 381 static int 382 ubsa_detach(device_t self) 383 { 384 struct ubsa_softc *sc = device_get_softc(self); 385 int rv; 386 387 388 DPRINTF(("ubsa_detach: sc = %p\n", sc)); 389 390 if (sc->sc_intr_pipe != NULL) { 391 usbd_abort_pipe(sc->sc_intr_pipe); 392 usbd_close_pipe(sc->sc_intr_pipe); 393 kfree(sc->sc_intr_buf, M_USBDEV); 394 sc->sc_intr_pipe = NULL; 395 } 396 397 sc->sc_ucom.sc_dying = 1; 398 399 rv = ucom_detach(&sc->sc_ucom); 400 401 return (rv); 402 } 403 404 static int 405 ubsa_request(struct ubsa_softc *sc, u_int8_t request, u_int16_t value) 406 { 407 usb_device_request_t req; 408 usbd_status err; 409 410 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 411 req.bRequest = request; 412 USETW(req.wValue, value); 413 USETW(req.wIndex, sc->sc_iface_number); 414 USETW(req.wLength, 0); 415 416 err = usbd_do_request(sc->sc_ucom.sc_udev, &req, 0); 417 if (err) 418 device_printf(sc->sc_ucom.sc_dev, "ubsa_request: %s\n", 419 usbd_errstr(err)); 420 return (err); 421 } 422 423 static void 424 ubsa_dtr(struct ubsa_softc *sc, int onoff) 425 { 426 427 DPRINTF(("ubsa_dtr: onoff = %d\n", onoff)); 428 429 if (sc->sc_dtr == onoff) 430 return; 431 sc->sc_dtr = onoff; 432 433 ubsa_request(sc, UBSA_SET_DTR, onoff ? 1 : 0); 434 } 435 436 static void 437 ubsa_rts(struct ubsa_softc *sc, int onoff) 438 { 439 440 DPRINTF(("ubsa_rts: onoff = %d\n", onoff)); 441 442 if (sc->sc_rts == onoff) 443 return; 444 sc->sc_rts = onoff; 445 446 ubsa_request(sc, UBSA_SET_RTS, onoff ? 1 : 0); 447 } 448 449 static void 450 ubsa_break(struct ubsa_softc *sc, int onoff) 451 { 452 453 DPRINTF(("ubsa_rts: onoff = %d\n", onoff)); 454 455 ubsa_request(sc, UBSA_SET_BREAK, onoff ? 1 : 0); 456 } 457 458 static void 459 ubsa_set(void *addr, int portno, int reg, int onoff) 460 { 461 struct ubsa_softc *sc; 462 463 sc = addr; 464 switch (reg) { 465 case UCOM_SET_DTR: 466 ubsa_dtr(sc, onoff); 467 break; 468 case UCOM_SET_RTS: 469 ubsa_rts(sc, onoff); 470 break; 471 case UCOM_SET_BREAK: 472 ubsa_break(sc, onoff); 473 break; 474 default: 475 break; 476 } 477 } 478 479 static void 480 ubsa_baudrate(struct ubsa_softc *sc, speed_t speed) 481 { 482 u_int16_t value = 0; 483 484 DPRINTF(("ubsa_baudrate: speed = %d\n", speed)); 485 486 switch(speed) { 487 case B0: 488 break; 489 case B300: 490 case B600: 491 case B1200: 492 case B2400: 493 case B4800: 494 case B9600: 495 case B19200: 496 case B38400: 497 case B57600: 498 case B115200: 499 case B230400: 500 value = B230400 / speed; 501 break; 502 default: 503 device_printf(sc->sc_ucom.sc_dev, "ubsa_param: unsupported " 504 "baudrate, forcing default of 9600\n"); 505 value = B230400 / B9600; 506 break; 507 }; 508 509 if (speed == B0) { 510 ubsa_flow(sc, 0, 0); 511 ubsa_dtr(sc, 0); 512 ubsa_rts(sc, 0); 513 } else 514 ubsa_request(sc, UBSA_SET_BAUDRATE, value); 515 } 516 517 static void 518 ubsa_parity(struct ubsa_softc *sc, tcflag_t cflag) 519 { 520 int value; 521 522 DPRINTF(("ubsa_parity: cflag = 0x%x\n", cflag)); 523 524 if (cflag & PARENB) 525 value = (cflag & PARODD) ? UBSA_PARITY_ODD : UBSA_PARITY_EVEN; 526 else 527 value = UBSA_PARITY_NONE; 528 529 ubsa_request(sc, UBSA_SET_PARITY, value); 530 } 531 532 static void 533 ubsa_databits(struct ubsa_softc *sc, tcflag_t cflag) 534 { 535 int value; 536 537 DPRINTF(("ubsa_databits: cflag = 0x%x\n", cflag)); 538 539 switch (cflag & CSIZE) { 540 case CS5: value = 0; break; 541 case CS6: value = 1; break; 542 case CS7: value = 2; break; 543 case CS8: value = 3; break; 544 default: 545 device_printf(sc->sc_ucom.sc_dev, "ubsa_param: unsupported " 546 "databits requested, forcing default of 8\n"); 547 value = 3; 548 } 549 550 ubsa_request(sc, UBSA_SET_DATA_BITS, value); 551 } 552 553 static void 554 ubsa_stopbits(struct ubsa_softc *sc, tcflag_t cflag) 555 { 556 int value; 557 558 DPRINTF(("ubsa_stopbits: cflag = 0x%x\n", cflag)); 559 560 value = (cflag & CSTOPB) ? 1 : 0; 561 562 ubsa_request(sc, UBSA_SET_STOP_BITS, value); 563 } 564 565 static void 566 ubsa_flow(struct ubsa_softc *sc, tcflag_t cflag, tcflag_t iflag) 567 { 568 int value; 569 570 DPRINTF(("ubsa_flow: cflag = 0x%x, iflag = 0x%x\n", cflag, iflag)); 571 572 value = 0; 573 if (cflag & CRTSCTS) 574 value |= UBSA_FLOW_OCTS | UBSA_FLOW_IRTS; 575 if (iflag & (IXON|IXOFF)) 576 value |= UBSA_FLOW_OXON | UBSA_FLOW_IXON; 577 578 ubsa_request(sc, UBSA_SET_FLOW_CTRL, value); 579 } 580 581 static int 582 ubsa_param(void *addr, int portno, struct termios *ti) 583 { 584 struct ubsa_softc *sc; 585 586 sc = addr; 587 588 DPRINTF(("ubsa_param: sc = %p\n", sc)); 589 590 ubsa_baudrate(sc, ti->c_ospeed); 591 ubsa_parity(sc, ti->c_cflag); 592 ubsa_databits(sc, ti->c_cflag); 593 ubsa_stopbits(sc, ti->c_cflag); 594 ubsa_flow(sc, ti->c_cflag, ti->c_iflag); 595 596 return (0); 597 } 598 599 static int 600 ubsa_open(void *addr, int portno) 601 { 602 struct ubsa_softc *sc; 603 int err; 604 605 sc = addr; 606 if (sc->sc_ucom.sc_dying) 607 return (ENXIO); 608 609 DPRINTF(("ubsa_open: sc = %p\n", sc)); 610 611 if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) { 612 sc->sc_intr_buf = kmalloc(sc->sc_isize, M_USBDEV, M_WAITOK); 613 err = usbd_open_pipe_intr(sc->sc_intr_iface, 614 sc->sc_intr_number, 615 USBD_SHORT_XFER_OK, 616 &sc->sc_intr_pipe, 617 sc, 618 sc->sc_intr_buf, 619 sc->sc_isize, 620 ubsa_intr, 621 UBSA_INTR_INTERVAL); 622 if (err) { 623 device_printf(sc->sc_ucom.sc_dev, "cannot open " 624 "interrupt pipe (addr %d)\n", 625 sc->sc_intr_number); 626 return (EIO); 627 } 628 } 629 630 return (0); 631 } 632 633 static void 634 ubsa_close(void *addr, int portno) 635 { 636 struct ubsa_softc *sc; 637 int err; 638 639 sc = addr; 640 if (sc->sc_ucom.sc_dying) 641 return; 642 643 DPRINTF(("ubsa_close: close\n")); 644 645 if (sc->sc_intr_pipe != NULL) { 646 err = usbd_abort_pipe(sc->sc_intr_pipe); 647 if (err) 648 device_printf(sc->sc_ucom.sc_dev, "abort interrupt " 649 "pipe failed: %s\n", usbd_errstr(err)); 650 err = usbd_close_pipe(sc->sc_intr_pipe); 651 if (err) 652 device_printf(sc->sc_ucom.sc_dev, "close interrupt " 653 "pipe failed: %s\n", usbd_errstr(err)); 654 kfree(sc->sc_intr_buf, M_USBDEV); 655 sc->sc_intr_pipe = NULL; 656 } 657 } 658 659 static void 660 ubsa_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 661 { 662 struct ubsa_softc *sc; 663 u_char *buf; 664 665 sc = priv; 666 buf = sc->sc_intr_buf; 667 if (sc->sc_ucom.sc_dying) 668 return; 669 670 if (status != USBD_NORMAL_COMPLETION) { 671 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 672 return; 673 674 DPRINTF(("%s: ubsa_intr: abnormal status: %s\n", 675 device_get_nameunit(sc->sc_ucom.sc_dev), 676 usbd_errstr(status))); 677 usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); 678 return; 679 } 680 681 /* incidentally, Belkin adapter status bits match UART 16550 bits */ 682 sc->sc_lsr = buf[2]; 683 sc->sc_msr = buf[3]; 684 685 DPRINTF(("%s: ubsa lsr = 0x%02x, msr = 0x%02x\n", 686 device_get_nameunit(sc->sc_ucom.sc_dev), sc->sc_lsr, sc->sc_msr)); 687 688 ubsa_notify(sc); 689 } 690 691 /* Handle delayed events. */ 692 static void 693 ubsa_notify(void *arg) 694 { 695 struct ubsa_softc *sc; 696 697 sc = arg; 698 ucom_status_change(&sc->sc_ucom); 699 } 700 701 static void 702 ubsa_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 703 { 704 struct ubsa_softc *sc; 705 706 DPRINTF(("ubsa_get_status\n")); 707 708 sc = addr; 709 if (lsr != NULL) 710 *lsr = sc->sc_lsr; 711 if (msr != NULL) 712 *msr = sc->sc_msr; 713 }
Cache object: 1969d5353a3a4a46887d70358e9a01f1
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