uslsa.c revision 1.12
1 /* $NetBSD: uslsa.c,v 1.12 2010/11/03 22:34:24 dyoung Exp $ */ 2 3 /* from ugensa.c */ 4 5 /* 6 * Copyright (c) 2004, 2005 The NetBSD Foundation, Inc. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to The NetBSD Foundation 10 * by Roland C. Dowdeswell <elric (at) netbsd.org>. 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 * Copyright (c) 2007, 2009 Jonathan A. Kollasch. 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 48 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 49 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 50 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 51 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 52 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 53 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 54 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 55 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 56 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 57 * 58 */ 59 60 /* 61 * Craig Shelley's Linux driver was used for documentation. 62 */ 63 64 #include <sys/cdefs.h> 65 __KERNEL_RCSID(0, "$NetBSD: uslsa.c,v 1.12 2010/11/03 22:34:24 dyoung Exp $"); 66 67 #include <sys/param.h> 68 #include <sys/systm.h> 69 #include <sys/kernel.h> 70 #include <sys/device.h> 71 #include <sys/conf.h> 72 #include <sys/tty.h> 73 74 #include <dev/usb/usb.h> 75 76 #include <dev/usb/usbdi.h> 77 #include <dev/usb/usbdi_util.h> 78 #include <dev/usb/usbdevs.h> 79 80 #include <dev/usb/ucomvar.h> 81 82 #ifdef DEBUG 83 #define USLSA_DEBUG 84 #endif 85 86 #ifdef USLSA_DEBUG 87 #define DPRINTF(x) if (uslsadebug) printf x 88 #define DPRINTFN(n,x) if (uslsadebug>(n)) printf x 89 int uslsadebug = 0; 90 #else 91 #define DPRINTF(x) 92 #define DPRINTFN(n,x) 93 #endif 94 95 #define USLSA_REQ_SET_STATE 0x00 96 97 #define USLSA_REQ_SET_BPS 0x01 98 #define USLSA_REQ_GET_BPS 0x02 99 100 #define USLSA_REQ_SET_DPS 0x03 101 #define USLSA_REQ_GET_DPS 0x04 102 103 #define USLSA_REQ_SET_BREAK 0x05 104 #define USLSA_REQ_GET_BREAK 0x06 105 106 #define USLSA_REQ_SET_FLOW 0x07 107 #define USLSA_REQ_GET_FLOW 0x08 108 109 #define USLSA_REQ_SET_MODEM 0x13 110 #define USLSA_REQ_GET_MODEM 0x14 111 112 #define USLSA_REQ_SET_MISC 0x19 113 #define USLSA_REQ_GET_MISC 0x20 114 115 #define USLSA_STATE_DISABLE 0x0000 116 #define USLSA_STATE_ENABLE 0x0001 117 118 #define USLSA_BPS(b) (3686400/b) 119 120 #define USLSA_DPS_DATA_MASK 0x0f00 121 #define USLSA_DPS_DATA_FIVE 0x0500 122 #define USLSA_DPS_DATA_SIX 0x0600 123 #define USLSA_DPS_DATA_SEVEN 0x0700 124 #define USLSA_DPS_DATA_EIGHT 0x0800 125 #define USLSA_DPS_DATA_NINE 0x0900 126 127 #define USLSA_DPS_PARITY_MASK 0x00f0 128 #define USLSA_DPS_PARITY_SPACE 0x0040 129 #define USLSA_DPS_PARITY_MARK 0x0030 130 #define USLSA_DPS_PARITY_EVEN 0x0020 131 #define USLSA_DPS_PARITY_ODD 0x0010 132 #define USLSA_DPS_PARITY_NONE 0x0000 133 134 #define USLSA_DPS_STOP_MASK 0x000f 135 #define USLSA_DPS_STOP_TWO 0x0002 136 #define USLSA_DPS_STOP_ONE_FIVE 0x0001 137 #define USLSA_DPS_STOP_ONE 0x0000 138 139 #define USLSA_BREAK_DISABLE 0x0001 140 #define USLSA_BREAK_ENABLE 0x0000 141 142 #define USLSA_FLOW_SET_RTS 0x0200 143 #define USLSA_FLOW_SET_DTR 0x0100 144 #define USLSA_FLOW_MSR_MASK 0x00f0 145 #define USLSA_FLOW_MSR_DCD 0x0080 146 #define USLSA_FLOW_MSR_RI 0x0040 147 #define USLSA_FLOW_MSR_DSR 0x0020 148 #define USLSA_FLOW_MSR_CTS 0x0010 149 #define USLSA_FLOW_RTS 0x0002 150 #define USLSA_FLOW_DTR 0x0001 151 152 struct uslsa_softc { 153 device_t sc_dev; /* base device */ 154 usbd_device_handle sc_udev; /* device */ 155 usbd_interface_handle sc_iface; /* interface */ 156 157 device_t sc_subdev; /* ucom device */ 158 159 u_char sc_dying; /* disconnecting */ 160 161 u_char sc_lsr; /* local status register */ 162 u_char sc_msr; /* uslsa status register */ 163 }; 164 165 static void uslsa_get_status(void *sc, int, u_char *, u_char *); 166 static void uslsa_set(void *, int, int, int); 167 static int uslsa_param(void *, int, struct termios *); 168 static int uslsa_open(void *, int); 169 static void uslsa_close(void *, int); 170 171 static int uslsa_request_set(struct uslsa_softc *, uint8_t, uint16_t); 172 static void uslsa_set_flow(struct uslsa_softc *, tcflag_t, tcflag_t); 173 174 struct ucom_methods uslsa_methods = { 175 uslsa_get_status, 176 uslsa_set, 177 uslsa_param, 178 NULL, 179 uslsa_open, 180 uslsa_close, 181 NULL, 182 NULL, 183 }; 184 185 #define USLSA_CONFIG_INDEX 0 186 #define USLSA_IFACE_INDEX 0 187 #define USLSA_BUFSIZE 256 188 189 static const struct usb_devno uslsa_devs[] = { 190 { USB_VENDOR_BALTECH, USB_PRODUCT_BALTECH_CARDREADER }, 191 { USB_VENDOR_DYNASTREAM, USB_PRODUCT_DYNASTREAM_ANTDEVBOARD }, 192 { USB_VENDOR_JABLOTRON, USB_PRODUCT_JABLOTRON_PC60B }, 193 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_ARGUSISP }, 194 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_CRUMB128 }, 195 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_DEGREECONT }, 196 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_DESKTOPMOBILE }, 197 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_IPLINK1220 }, 198 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_LIPOWSKY_HARP }, 199 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_LIPOWSKY_JTAG }, 200 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_LIPOWSKY_LIN }, 201 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_POLOLU }, 202 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_CP210X_1 }, 203 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_CP210X_2 }, 204 { USB_VENDOR_SILABS, USB_PRODUCT_SILABS_SUNNTO }, 205 { USB_VENDOR_SILABS2, USB_PRODUCT_SILABS2_DCU11CLONE }, 206 { USB_VENDOR_USI, USB_PRODUCT_USI_MC60 } 207 }; 208 #define uslsa_lookup(v, p) usb_lookup(uslsa_devs, v, p) 209 210 int uslsa_match(device_t, cfdata_t, void *); 211 void uslsa_attach(device_t, device_t, void *); 212 void uslsa_childdet(device_t, device_t); 213 int uslsa_detach(device_t, int); 214 int uslsa_activate(device_t, enum devact); 215 extern struct cfdriver uslsa_cd; 216 CFATTACH_DECL2_NEW(uslsa, sizeof(struct uslsa_softc), uslsa_match, 217 uslsa_attach, uslsa_detach, uslsa_activate, NULL, uslsa_childdet); 218 219 int 220 uslsa_match(device_t parent, cfdata_t match, void *aux) 221 { 222 struct usb_attach_arg *uaa = aux; 223 224 return (uslsa_lookup(uaa->vendor, uaa->product) != NULL ? 225 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 226 } 227 228 void 229 uslsa_attach(device_t parent, device_t self, void *aux) 230 { 231 struct uslsa_softc *sc = device_private(self); 232 struct usb_attach_arg *uaa = aux; 233 usbd_device_handle dev = uaa->device; 234 usbd_interface_handle iface; 235 usb_interface_descriptor_t *id; 236 usb_endpoint_descriptor_t *ed; 237 char *devinfop; 238 usbd_status err; 239 struct ucom_attach_args uca; 240 int i; 241 242 sc->sc_dev = self; 243 244 DPRINTFN(10, ("\nuslsa_attach: sc=%p\n", sc)); 245 246 aprint_naive("\n"); 247 aprint_normal("\n"); 248 249 devinfop = usbd_devinfo_alloc(dev, 0); 250 aprint_normal_dev(self, "%s\n", devinfop); 251 usbd_devinfo_free(devinfop); 252 253 /* Move the device into the configured state. */ 254 err = usbd_set_config_index(dev, USLSA_CONFIG_INDEX, 1); 255 if (err) { 256 aprint_error_dev(self, "failed to set configuration, err=%s\n", 257 usbd_errstr(err)); 258 goto bad; 259 } 260 261 err = usbd_device2interface_handle(dev, USLSA_IFACE_INDEX, &iface); 262 if (err) { 263 aprint_error_dev(self, "failed to get interface, err=%s\n", 264 usbd_errstr(err)); 265 goto bad; 266 } 267 268 id = usbd_get_interface_descriptor(iface); 269 270 sc->sc_udev = dev; 271 sc->sc_iface = iface; 272 273 uca.info = "Silicon Labs CP210x"; 274 uca.portno = UCOM_UNK_PORTNO; 275 uca.ibufsize = USLSA_BUFSIZE; 276 uca.obufsize = USLSA_BUFSIZE; 277 uca.ibufsizepad = USLSA_BUFSIZE; 278 uca.opkthdrlen = 0; 279 uca.device = dev; 280 uca.iface = iface; 281 uca.methods = &uslsa_methods; 282 uca.arg = sc; 283 284 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 285 sc->sc_dev); 286 287 uca.bulkin = uca.bulkout = -1; 288 for (i = 0; i < id->bNumEndpoints; i++) { 289 int addr, dir, attr; 290 291 ed = usbd_interface2endpoint_descriptor(iface, i); 292 if (ed == NULL) { 293 aprint_error_dev(self, 294 "could not read endpoint descriptor: %s\n", 295 usbd_errstr(err)); 296 goto bad; 297 } 298 addr = ed->bEndpointAddress; 299 dir = UE_GET_DIR(ed->bEndpointAddress); 300 attr = ed->bmAttributes & UE_XFERTYPE; 301 if (dir == UE_DIR_IN && attr == UE_BULK) 302 uca.bulkin = addr; 303 else if (dir == UE_DIR_OUT && attr == UE_BULK) 304 uca.bulkout = addr; 305 else 306 aprint_error_dev(self, "unexpected endpoint\n"); 307 } 308 if (uca.bulkin == -1) { 309 aprint_error_dev(self, "Could not find data bulk in\n"); 310 goto bad; 311 } 312 if (uca.bulkout == -1) { 313 aprint_error_dev(self, "Could not find data bulk out\n"); 314 goto bad; 315 } 316 317 DPRINTF(("uslsa: in=0x%x out=0x%x\n", uca.bulkin, uca.bulkout)); 318 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca, 319 ucomprint, ucomsubmatch); 320 321 return; 322 323 bad: 324 DPRINTF(("uslsa_attach: ATTACH ERROR\n")); 325 sc->sc_dying = 1; 326 return; 327 } 328 329 int 330 uslsa_activate(device_t self, enum devact act) 331 { 332 struct uslsa_softc *sc = device_private(self); 333 334 switch (act) { 335 case DVACT_DEACTIVATE: 336 sc->sc_dying = 1; 337 return 0; 338 default: 339 return EOPNOTSUPP; 340 } 341 } 342 343 void 344 uslsa_childdet(device_t self, device_t child) 345 { 346 struct uslsa_softc *sc = device_private(self); 347 348 KASSERT(sc->sc_subdev == child); 349 sc->sc_subdev = NULL; 350 } 351 352 int 353 uslsa_detach(device_t self, int flags) 354 { 355 struct uslsa_softc *sc = device_private(self); 356 int rv = 0; 357 358 DPRINTF(("uslsa_detach: sc=%p flags=%d\n", sc, flags)); 359 360 sc->sc_dying = 1; 361 362 if (sc->sc_subdev != NULL) 363 rv = config_detach(sc->sc_subdev, flags); 364 365 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 366 sc->sc_dev); 367 368 return (rv); 369 } 370 371 static void 372 uslsa_get_status(void *vsc, int portno, u_char *lsr, u_char *msr) 373 { 374 struct uslsa_softc *sc; 375 usb_device_request_t req; 376 usbd_status err; 377 int actlen; 378 uint16_t flowreg; 379 380 sc = vsc; 381 382 DPRINTF(("uslsa_get_status:\n")); 383 384 req.bmRequestType = UT_READ_VENDOR_INTERFACE; 385 req.bRequest = USLSA_REQ_GET_FLOW; 386 USETW(req.wValue, 0); 387 USETW(req.wIndex, 0); 388 USETW(req.wLength, sizeof(flowreg)); 389 390 err = usbd_do_request_flags(sc->sc_udev, &req, &flowreg, 391 USBD_SHORT_XFER_OK, &actlen, USBD_DEFAULT_TIMEOUT); 392 if (err) 393 printf("%s: uslsa_get_status: %s\n", 394 device_xname(sc->sc_dev), usbd_errstr(err)); 395 396 DPRINTF(("uslsa_get_status: flowreg=0x%x\n", flowreg)); 397 398 sc->sc_msr = (u_char)(USLSA_FLOW_MSR_MASK & flowreg); 399 400 if (lsr != NULL) 401 *lsr = sc->sc_lsr; 402 if (msr != NULL) 403 *msr = sc->sc_msr; 404 } 405 406 static void 407 uslsa_set(void *vsc, int portno, int reg, int onoff) 408 { 409 struct uslsa_softc *sc; 410 411 sc = vsc; 412 413 DPRINTF(("uslsa_set: sc=%p, port=%d reg=%d onoff=%d\n", sc, portno, 414 reg, onoff)); 415 416 switch (reg) { 417 case UCOM_SET_DTR: 418 if (uslsa_request_set(sc, USLSA_REQ_SET_FLOW, 419 (onoff ? (USLSA_FLOW_DTR | USLSA_FLOW_SET_DTR) : 420 USLSA_FLOW_SET_DTR))) 421 printf("%s: uslsa_set_dtr failed\n", 422 device_xname(sc->sc_dev)); 423 break; 424 case UCOM_SET_RTS: 425 if (uslsa_request_set(sc, USLSA_REQ_SET_FLOW, 426 (onoff ? (USLSA_FLOW_RTS | USLSA_FLOW_SET_RTS) : 427 USLSA_FLOW_SET_RTS))) 428 printf("%s: uslsa_set_rts failed\n", 429 device_xname(sc->sc_dev)); 430 break; 431 case UCOM_SET_BREAK: 432 if (uslsa_request_set(sc, USLSA_REQ_SET_BREAK, 433 (onoff ? USLSA_BREAK_ENABLE : 434 USLSA_BREAK_DISABLE))) 435 printf("%s: uslsa_set_break failed\n", 436 device_xname(sc->sc_dev)); 437 break; 438 default: 439 break; 440 } 441 } 442 443 static int 444 uslsa_param(void *vsc, int portno, struct termios * t) 445 { 446 struct uslsa_softc *sc; 447 uint16_t data; 448 449 sc = vsc; 450 451 DPRINTF(("uslsa_param: sc=%p\n", sc)); 452 453 switch (t->c_ospeed) { 454 case B600: 455 case B1200: 456 case B2400: 457 case B4800: 458 case B9600: 459 case B19200: 460 case B38400: 461 case B57600: 462 case B115200: 463 case B230400: 464 case B460800: 465 case B921600: 466 data = USLSA_BPS(t->c_ospeed); 467 break; 468 default: 469 printf("%s: uslsa_param: unsupported data rate, " 470 "forcing default of 115200bps\n", 471 device_xname(sc->sc_dev)); 472 data = USLSA_BPS(B115200); 473 }; 474 475 if (uslsa_request_set(sc, USLSA_REQ_SET_BPS, data)) 476 printf("%s: uslsa_param: setting data rate failed\n", 477 device_xname(sc->sc_dev)); 478 479 data = 0; 480 481 if (ISSET(t->c_cflag, CSTOPB)) 482 data |= USLSA_DPS_STOP_TWO; 483 else 484 data |= USLSA_DPS_STOP_ONE; 485 486 if (ISSET(t->c_cflag, PARENB)) { 487 if (ISSET(t->c_cflag, PARODD)) 488 data |= USLSA_DPS_PARITY_ODD; 489 else 490 data |= USLSA_DPS_PARITY_EVEN; 491 } else 492 data |= USLSA_DPS_PARITY_NONE; 493 494 switch (ISSET(t->c_cflag, CSIZE)) { 495 case CS5: 496 data |= USLSA_DPS_DATA_FIVE; 497 break; 498 case CS6: 499 data |= USLSA_DPS_DATA_SIX; 500 break; 501 case CS7: 502 data |= USLSA_DPS_DATA_SEVEN; 503 break; 504 case CS8: 505 data |= USLSA_DPS_DATA_EIGHT; 506 break; 507 } 508 509 DPRINTF(("uslsa_param: setting DPS register to 0x%x\n", data)); 510 if (uslsa_request_set(sc, USLSA_REQ_SET_DPS, data)) 511 printf("%s: setting DPS register failed: invalid argument\n", 512 device_xname(sc->sc_dev)); 513 514 uslsa_set_flow(sc, t->c_cflag, t->c_iflag); 515 516 return 0; 517 } 518 519 520 static int 521 uslsa_open(void *vsc, int portno) 522 { 523 struct uslsa_softc *sc; 524 525 sc = vsc; 526 527 DPRINTF(("uslsa_open: sc=%p\n", sc)); 528 529 if (sc->sc_dying) 530 return (EIO); 531 532 if (uslsa_request_set(sc, USLSA_REQ_SET_STATE, USLSA_STATE_ENABLE)) 533 return (EIO); 534 535 return 0; 536 } 537 538 void 539 uslsa_close(void *vsc, int portno) 540 { 541 struct uslsa_softc *sc; 542 543 sc = vsc; 544 545 if (sc->sc_dying) 546 return; 547 548 DPRINTF(("uslsa_close: sc=%p\n", sc)); 549 550 if (uslsa_request_set(sc, USLSA_REQ_SET_STATE, 551 USLSA_STATE_DISABLE)) 552 printf("%s: disable-on-close failed\n", 553 device_xname(sc->sc_dev)); 554 } 555 556 /* 557 * uslsa_request_set(), wrapper for doing sets with usbd_do_request() 558 */ 559 static int 560 uslsa_request_set(struct uslsa_softc * sc, uint8_t request, uint16_t value) 561 { 562 usb_device_request_t req; 563 usbd_status err; 564 565 req.bmRequestType = UT_WRITE_VENDOR_INTERFACE; 566 req.bRequest = request; 567 USETW(req.wValue, value); 568 USETW(req.wIndex, 0); 569 USETW(req.wLength, 0); 570 571 err = usbd_do_request(sc->sc_udev, &req, 0); 572 if (err) 573 printf("%s: uslsa_request: %s\n", 574 device_xname(sc->sc_dev), usbd_errstr(err)); 575 return err; 576 } 577 578 /* 579 * uslsa_set_flow() does some magic to set up hardware flow control 580 */ 581 static void 582 uslsa_set_flow(struct uslsa_softc *sc, tcflag_t cflag, tcflag_t iflag) 583 { 584 uint8_t mysterydata[16]; 585 usb_device_request_t req; 586 usbd_status err; 587 588 DPRINTF(("uslsa_set_flow: cflag = 0x%x, iflag = 0x%x\n", 589 cflag, iflag)); 590 591 req.bmRequestType = UT_READ_VENDOR_INTERFACE; 592 req.bRequest = USLSA_REQ_GET_MODEM; 593 USETW(req.wValue, 0); 594 USETW(req.wIndex, 0); 595 USETW(req.wLength, 16); 596 597 err = usbd_do_request(sc->sc_udev, &req, mysterydata); 598 if (err) 599 printf("%s: uslsa_set_flow: %s\n", 600 device_xname(sc->sc_dev), usbd_errstr(err)); 601 602 if (ISSET(cflag, CRTSCTS)) { 603 mysterydata[0] &= ~0x7b; 604 mysterydata[0] |= 0x09; 605 mysterydata[4] = 0x80; 606 } else { 607 mysterydata[0] &= ~0x7b; 608 mysterydata[0] |= 0x01; 609 mysterydata[4] = 0x40; 610 } 611 612 req.bmRequestType = UT_WRITE_VENDOR_INTERFACE; 613 req.bRequest = USLSA_REQ_SET_MODEM; 614 USETW(req.wValue, 0); 615 USETW(req.wIndex, 0); 616 USETW(req.wLength, 16); 617 618 err = usbd_do_request(sc->sc_udev, &req, mysterydata); 619 if (err) 620 printf("%s: uslsa_set_flow: %s\n", 621 device_xname(sc->sc_dev), usbd_errstr(err)); 622 } 623
Indexes created Wed Sep 24 15:09:51 GMT 2025