uftdi.c revision 1.29.8.2
1 /* $NetBSD: uftdi.c,v 1.29.8.2 2007/06/21 15:15:57 itohy Exp $ */ 2 3 /* 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart (at) augustsson.net). 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * FTDI FT8U100AX serial adapter driver 41 */ 42 43 /* 44 * XXX This driver will not support multiple serial ports. 45 * XXX The ucom layer needs to be extended first. 46 */ 47 48 #include <sys/cdefs.h> 49 __KERNEL_RCSID(0, "$NetBSD: uftdi.c,v 1.29.8.2 2007/06/21 15:15:57 itohy Exp $"); 50 51 #include <sys/param.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 #include <sys/device.h> 55 #include <sys/conf.h> 56 #include <sys/tty.h> 57 58 #include <dev/usb/usb.h> 59 #include <dev/usb/usbhid.h> 60 61 #include <dev/usb/usbdi.h> 62 #include <dev/usb/usbdi_util.h> 63 #include <dev/usb/usbdevs.h> 64 65 #include <dev/usb/ucomvar.h> 66 67 #include <dev/usb/uftdireg.h> 68 69 #ifdef UFTDI_DEBUG 70 #define DPRINTF(x) if (uftdidebug) printf x 71 #define DPRINTFN(n,x) if (uftdidebug>(n)) printf x 72 int uftdidebug = 0; 73 #else 74 #define DPRINTF(x) 75 #define DPRINTFN(n,x) 76 #endif 77 78 #define UFTDI_CONFIG_INDEX 0 79 #define UFTDI_IFACE_INDEX 0 80 81 82 /* 83 * These are the maximum number of bytes transferred per frame. 84 * The output buffer size cannot be increased due to the size encoding. 85 */ 86 #define UFTDIIBUFSIZE 64 87 #define UFTDIOBUFSIZE 64 88 89 struct uftdi_softc { 90 USBBASEDEVICE sc_dev; /* base device */ 91 usbd_device_handle sc_udev; /* device */ 92 usbd_interface_handle sc_iface; /* interface */ 93 94 enum uftdi_type sc_type; 95 u_int sc_hdrlen; 96 97 u_char sc_msr; 98 u_char sc_lsr; 99 100 device_ptr_t sc_subdev; 101 102 u_char sc_dying; 103 104 u_int last_lcr; 105 }; 106 107 Static void uftdi_get_status(void *, int portno, u_char *lsr, u_char *msr); 108 Static void uftdi_set(void *, int, int, int); 109 Static int uftdi_param(void *, int, struct termios *); 110 Static int uftdi_open(void *sc, int portno); 111 Static void uftdi_read(void *sc, int portno, u_char **ptr,u_int32_t *count); 112 Static void uftdi_write(void *sc, int portno, u_char *to, u_char *from, 113 u_int32_t *count); 114 Static void uftdi_break(void *sc, int portno, int onoff); 115 116 struct ucom_methods uftdi_methods = { 117 uftdi_get_status, 118 uftdi_set, 119 uftdi_param, 120 NULL, 121 uftdi_open, 122 NULL, 123 uftdi_read, 124 uftdi_write, 125 }; 126 127 /* 128 * The devices default to UFTDI_TYPE_8U232AM. 129 * Remember to update USB_ATTACH if it should be UFTDI_TYPE_SIO instead 130 */ 131 static const struct usb_devno uftdi_devs[] = { 132 { USB_VENDOR_BBELECTRONICS, USB_PRODUCT_BBELECTRONICS_USOTL4 }, 133 { USB_VENDOR_FALCOM, USB_PRODUCT_FALCOM_TWIST }, 134 { USB_VENDOR_FALCOM, USB_PRODUCT_FALCOM_SAMBA }, 135 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_SERIAL_2232C }, 136 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_SERIAL_8U100AX }, 137 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_SERIAL_8U232AM }, 138 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_KW }, 139 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_YS }, 140 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_Y6 }, 141 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_Y8 }, 142 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_IC }, 143 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_DB9 }, 144 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_RS232 }, 145 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_Y9 }, 146 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_COASTAL_TNCX }, 147 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_SEMC_DSS20 }, 148 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_LK202_24_USB }, 149 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_LK204_24_USB }, 150 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_MX200_USB }, 151 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_MX4_MX5_USB }, 152 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_CFA_631 }, 153 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_CFA_632 }, 154 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_CFA_633 }, 155 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_CFA_634 }, 156 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_CFA_635 }, 157 { USB_VENDOR_INTREPIDCS, USB_PRODUCT_INTREPIDCS_VALUECAN }, 158 { USB_VENDOR_INTREPIDCS, USB_PRODUCT_INTREPIDCS_NEOVI }, 159 { USB_VENDOR_SEALEVEL, USB_PRODUCT_SEALEVEL_USBSERIAL }, 160 { USB_VENDOR_SIIG2, USB_PRODUCT_SIIG2_US2308 }, 161 }; 162 #define uftdi_lookup(v, p) usb_lookup(uftdi_devs, v, p) 163 164 USB_DECLARE_DRIVER(uftdi); 165 166 USB_MATCH(uftdi) 167 { 168 USB_MATCH_START(uftdi, uaa); 169 170 #ifndef USB_USE_IFATTACH 171 if (uaa->iface != NULL) 172 return (UMATCH_NONE); 173 #endif /* USB_USE_IFATTACH */ 174 175 DPRINTFN(20,("uftdi: vendor=0x%x, product=0x%x\n", 176 uaa->vendor, uaa->product)); 177 178 return (uftdi_lookup(uaa->vendor, uaa->product) != NULL ? 179 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 180 } 181 182 USB_ATTACH(uftdi) 183 { 184 USB_ATTACH_START(uftdi, sc, uaa); 185 usbd_device_handle dev = uaa->device; 186 usbd_interface_handle iface; 187 usb_interface_descriptor_t *id; 188 usb_endpoint_descriptor_t *ed; 189 char *devinfop; 190 char *devname = USBDEVNAME(sc->sc_dev); 191 int i; 192 usbd_status err; 193 struct ucom_attach_args uca; 194 195 DPRINTFN(10,("\nuftdi_attach: sc=%p\n", sc)); 196 197 /* Move the device into the configured state. */ 198 err = usbd_set_config_index(dev, UFTDI_CONFIG_INDEX, 1); 199 if (err) { 200 printf("\n%s: failed to set configuration, err=%s\n", 201 devname, usbd_errstr(err)); 202 goto bad; 203 } 204 205 err = usbd_device2interface_handle(dev, UFTDI_IFACE_INDEX, &iface); 206 if (err) { 207 printf("\n%s: failed to get interface, err=%s\n", 208 devname, usbd_errstr(err)); 209 goto bad; 210 } 211 212 devinfop = usbd_devinfo_alloc(dev, 0); 213 USB_ATTACH_SETUP; 214 printf("%s: %s\n", devname, devinfop); 215 usbd_devinfo_free(devinfop); 216 217 id = usbd_get_interface_descriptor(iface); 218 219 sc->sc_udev = dev; 220 sc->sc_iface = iface; 221 222 switch( uaa->vendor ) { 223 case USB_VENDOR_FTDI: 224 switch (uaa->product) { 225 case USB_PRODUCT_FTDI_SERIAL_8U100AX: 226 sc->sc_type = UFTDI_TYPE_SIO; 227 sc->sc_hdrlen = 1; 228 break; 229 default: /* Most uftdi devices are 8U232AM */ 230 sc->sc_type = UFTDI_TYPE_8U232AM; 231 sc->sc_hdrlen = 0; 232 } 233 break; 234 default: /* Most uftdi devices are 8U232AM */ 235 sc->sc_type = UFTDI_TYPE_8U232AM; 236 sc->sc_hdrlen = 0; 237 } 238 239 uca.bulkin = uca.bulkout = -1; 240 for (i = 0; i < id->bNumEndpoints; i++) { 241 int addr, dir, attr; 242 ed = usbd_interface2endpoint_descriptor(iface, i); 243 if (ed == NULL) { 244 printf("%s: could not read endpoint descriptor" 245 ": %s\n", devname, usbd_errstr(err)); 246 goto bad; 247 } 248 249 addr = ed->bEndpointAddress; 250 dir = UE_GET_DIR(ed->bEndpointAddress); 251 attr = ed->bmAttributes & UE_XFERTYPE; 252 if (dir == UE_DIR_IN && attr == UE_BULK) 253 uca.bulkin = addr; 254 else if (dir == UE_DIR_OUT && attr == UE_BULK) 255 uca.bulkout = addr; 256 else { 257 printf("%s: unexpected endpoint\n", devname); 258 goto bad; 259 } 260 } 261 if (uca.bulkin == -1) { 262 printf("%s: Could not find data bulk in\n", 263 USBDEVNAME(sc->sc_dev)); 264 goto bad; 265 } 266 if (uca.bulkout == -1) { 267 printf("%s: Could not find data bulk out\n", 268 USBDEVNAME(sc->sc_dev)); 269 goto bad; 270 } 271 272 uca.portno = FTDI_PIT_SIOA; 273 /* bulkin, bulkout set above */ 274 uca.ibufsize = UFTDIIBUFSIZE; 275 uca.obufsize = UFTDIOBUFSIZE - sc->sc_hdrlen; 276 uca.ibufsizepad = UFTDIIBUFSIZE; 277 uca.opkthdrlen = sc->sc_hdrlen; 278 uca.device = dev; 279 uca.iface = iface; 280 uca.methods = &uftdi_methods; 281 uca.arg = sc; 282 uca.info = NULL; 283 284 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 285 USBDEV(sc->sc_dev)); 286 287 DPRINTF(("uftdi: in=0x%x out=0x%x\n", uca.bulkin, uca.bulkout)); 288 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca, 289 ucomprint, ucomsubmatch); 290 291 USB_ATTACH_SUCCESS_RETURN; 292 293 bad: 294 DPRINTF(("uftdi_attach: ATTACH ERROR\n")); 295 sc->sc_dying = 1; 296 USB_ATTACH_ERROR_RETURN; 297 } 298 299 int 300 uftdi_activate(device_ptr_t self, enum devact act) 301 { 302 struct uftdi_softc *sc = (struct uftdi_softc *)self; 303 int rv = 0; 304 305 switch (act) { 306 case DVACT_ACTIVATE: 307 return (EOPNOTSUPP); 308 309 case DVACT_DEACTIVATE: 310 if (sc->sc_subdev != NULL) 311 rv = config_deactivate(sc->sc_subdev); 312 sc->sc_dying = 1; 313 break; 314 } 315 return (rv); 316 } 317 318 int 319 uftdi_detach(device_ptr_t self, int flags) 320 { 321 struct uftdi_softc *sc = (struct uftdi_softc *)self; 322 323 DPRINTF(("uftdi_detach: sc=%p flags=%d\n", sc, flags)); 324 sc->sc_dying = 1; 325 if (sc->sc_subdev != NULL) { 326 config_detach(sc->sc_subdev, flags); 327 sc->sc_subdev = NULL; 328 } 329 330 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 331 USBDEV(sc->sc_dev)); 332 333 return (0); 334 } 335 336 Static int 337 uftdi_open(void *vsc, int portno) 338 { 339 struct uftdi_softc *sc = vsc; 340 usb_device_request_t req; 341 usbd_status err; 342 struct termios t; 343 344 DPRINTF(("uftdi_open: sc=%p\n", sc)); 345 346 if (sc->sc_dying) 347 return (EIO); 348 349 /* Perform a full reset on the device */ 350 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 351 req.bRequest = FTDI_SIO_RESET; 352 USETW(req.wValue, FTDI_SIO_RESET_SIO); 353 USETW(req.wIndex, portno); 354 USETW(req.wLength, 0); 355 err = usbd_do_request(sc->sc_udev, &req, NULL); 356 if (err) 357 return (EIO); 358 359 /* Set 9600 baud, 2 stop bits, no parity, 8 bits */ 360 t.c_ospeed = 9600; 361 t.c_cflag = CSTOPB | CS8; 362 (void)uftdi_param(sc, portno, &t); 363 364 /* Turn on RTS/CTS flow control */ 365 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 366 req.bRequest = FTDI_SIO_SET_FLOW_CTRL; 367 USETW(req.wValue, 0); 368 USETW2(req.wIndex, FTDI_SIO_RTS_CTS_HS, portno); 369 USETW(req.wLength, 0); 370 err = usbd_do_request(sc->sc_udev, &req, NULL); 371 if (err) 372 return (EIO); 373 374 return (0); 375 } 376 377 Static void 378 uftdi_read(void *vsc, int portno, u_char **ptr, u_int32_t *count) 379 { 380 struct uftdi_softc *sc = vsc; 381 u_char msr, lsr; 382 383 DPRINTFN(15,("uftdi_read: sc=%p, port=%d count=%d\n", sc, portno, 384 *count)); 385 386 msr = FTDI_GET_MSR(*ptr); 387 lsr = FTDI_GET_LSR(*ptr); 388 389 #ifdef UFTDI_DEBUG 390 if (*count != 2) 391 DPRINTFN(10,("uftdi_read: sc=%p, port=%d count=%d data[0]=" 392 "0x%02x\n", sc, portno, *count, (*ptr)[2])); 393 #endif 394 395 if (sc->sc_msr != msr || 396 (sc->sc_lsr & FTDI_LSR_MASK) != (lsr & FTDI_LSR_MASK)) { 397 DPRINTF(("uftdi_read: status change msr=0x%02x(0x%02x) " 398 "lsr=0x%02x(0x%02x)\n", msr, sc->sc_msr, 399 lsr, sc->sc_lsr)); 400 sc->sc_msr = msr; 401 sc->sc_lsr = lsr; 402 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 403 } 404 405 /* Pick up status and adjust data part. */ 406 *ptr += 2; 407 *count -= 2; 408 } 409 410 Static void 411 uftdi_write(void *vsc, int portno, u_char *to, u_char *from, u_int32_t *count) 412 { 413 struct uftdi_softc *sc = vsc; 414 415 DPRINTFN(10,("uftdi_write: sc=%p, port=%d count=%u data[0]=0x%02x\n", 416 vsc, portno, *count, from[0])); 417 418 /* Make length tag and copy data */ 419 if (sc->sc_hdrlen > 0) 420 *to = FTDI_OUT_TAG(*count, portno); 421 422 memcpy(to + sc->sc_hdrlen, from, *count); 423 *count += sc->sc_hdrlen; 424 } 425 426 Static void 427 uftdi_set(void *vsc, int portno, int reg, int onoff) 428 { 429 struct uftdi_softc *sc = vsc; 430 usb_device_request_t req; 431 int ctl; 432 433 DPRINTF(("uftdi_set: sc=%p, port=%d reg=%d onoff=%d\n", vsc, portno, 434 reg, onoff)); 435 436 switch (reg) { 437 case UCOM_SET_DTR: 438 ctl = onoff ? FTDI_SIO_SET_DTR_HIGH : FTDI_SIO_SET_DTR_LOW; 439 break; 440 case UCOM_SET_RTS: 441 ctl = onoff ? FTDI_SIO_SET_RTS_HIGH : FTDI_SIO_SET_RTS_LOW; 442 break; 443 case UCOM_SET_BREAK: 444 uftdi_break(sc, portno, onoff); 445 return; 446 default: 447 return; 448 } 449 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 450 req.bRequest = FTDI_SIO_MODEM_CTRL; 451 USETW(req.wValue, ctl); 452 USETW(req.wIndex, portno); 453 USETW(req.wLength, 0); 454 DPRINTFN(2,("uftdi_set: reqtype=0x%02x req=0x%02x value=0x%04x " 455 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 456 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 457 (void)usbd_do_request(sc->sc_udev, &req, NULL); 458 } 459 460 Static int 461 uftdi_param(void *vsc, int portno, struct termios *t) 462 { 463 struct uftdi_softc *sc = vsc; 464 usb_device_request_t req; 465 usbd_status err; 466 int rate, data, flow; 467 468 DPRINTF(("uftdi_param: sc=%p\n", sc)); 469 470 if (sc->sc_dying) 471 return (EIO); 472 473 switch (sc->sc_type) { 474 case UFTDI_TYPE_SIO: 475 switch (t->c_ospeed) { 476 case 300: rate = ftdi_sio_b300; break; 477 case 600: rate = ftdi_sio_b600; break; 478 case 1200: rate = ftdi_sio_b1200; break; 479 case 2400: rate = ftdi_sio_b2400; break; 480 case 4800: rate = ftdi_sio_b4800; break; 481 case 9600: rate = ftdi_sio_b9600; break; 482 case 19200: rate = ftdi_sio_b19200; break; 483 case 38400: rate = ftdi_sio_b38400; break; 484 case 57600: rate = ftdi_sio_b57600; break; 485 case 115200: rate = ftdi_sio_b115200; break; 486 default: 487 return (EINVAL); 488 } 489 break; 490 491 case UFTDI_TYPE_8U232AM: 492 switch(t->c_ospeed) { 493 case 300: rate = ftdi_8u232am_b300; break; 494 case 600: rate = ftdi_8u232am_b600; break; 495 case 1200: rate = ftdi_8u232am_b1200; break; 496 case 2400: rate = ftdi_8u232am_b2400; break; 497 case 4800: rate = ftdi_8u232am_b4800; break; 498 case 9600: rate = ftdi_8u232am_b9600; break; 499 case 19200: rate = ftdi_8u232am_b19200; break; 500 case 38400: rate = ftdi_8u232am_b38400; break; 501 case 57600: rate = ftdi_8u232am_b57600; break; 502 case 115200: rate = ftdi_8u232am_b115200; break; 503 case 230400: rate = ftdi_8u232am_b230400; break; 504 case 460800: rate = ftdi_8u232am_b460800; break; 505 case 921600: rate = ftdi_8u232am_b921600; break; 506 default: 507 return (EINVAL); 508 } 509 break; 510 511 default: 512 return (EINVAL); 513 } 514 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 515 req.bRequest = FTDI_SIO_SET_BAUD_RATE; 516 USETW(req.wValue, rate); 517 USETW(req.wIndex, portno); 518 USETW(req.wLength, 0); 519 DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x " 520 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 521 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 522 err = usbd_do_request(sc->sc_udev, &req, NULL); 523 if (err) 524 return (EIO); 525 526 if (ISSET(t->c_cflag, CSTOPB)) 527 data = FTDI_SIO_SET_DATA_STOP_BITS_2; 528 else 529 data = FTDI_SIO_SET_DATA_STOP_BITS_1; 530 if (ISSET(t->c_cflag, PARENB)) { 531 if (ISSET(t->c_cflag, PARODD)) 532 data |= FTDI_SIO_SET_DATA_PARITY_ODD; 533 else 534 data |= FTDI_SIO_SET_DATA_PARITY_EVEN; 535 } else 536 data |= FTDI_SIO_SET_DATA_PARITY_NONE; 537 switch (ISSET(t->c_cflag, CSIZE)) { 538 case CS5: 539 data |= FTDI_SIO_SET_DATA_BITS(5); 540 break; 541 case CS6: 542 data |= FTDI_SIO_SET_DATA_BITS(6); 543 break; 544 case CS7: 545 data |= FTDI_SIO_SET_DATA_BITS(7); 546 break; 547 case CS8: 548 data |= FTDI_SIO_SET_DATA_BITS(8); 549 break; 550 } 551 sc->last_lcr = data; 552 553 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 554 req.bRequest = FTDI_SIO_SET_DATA; 555 USETW(req.wValue, data); 556 USETW(req.wIndex, portno); 557 USETW(req.wLength, 0); 558 DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x " 559 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 560 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 561 err = usbd_do_request(sc->sc_udev, &req, NULL); 562 if (err) 563 return (EIO); 564 565 if (ISSET(t->c_cflag, CRTSCTS)) { 566 flow = FTDI_SIO_RTS_CTS_HS; 567 USETW(req.wValue, 0); 568 } else if (ISSET(t->c_iflag, IXON|IXOFF)) { 569 flow = FTDI_SIO_XON_XOFF_HS; 570 USETW2(req.wValue, t->c_cc[VSTOP], t->c_cc[VSTART]); 571 } else { 572 flow = FTDI_SIO_DISABLE_FLOW_CTRL; 573 USETW(req.wValue, 0); 574 } 575 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 576 req.bRequest = FTDI_SIO_SET_FLOW_CTRL; 577 USETW2(req.wIndex, flow, portno); 578 USETW(req.wLength, 0); 579 err = usbd_do_request(sc->sc_udev, &req, NULL); 580 if (err) 581 return (EIO); 582 583 return (0); 584 } 585 586 void 587 uftdi_get_status(void *vsc, int portno, u_char *lsr, u_char *msr) 588 { 589 struct uftdi_softc *sc = vsc; 590 591 DPRINTF(("uftdi_status: msr=0x%02x lsr=0x%02x\n", 592 sc->sc_msr, sc->sc_lsr)); 593 594 if (msr != NULL) 595 *msr = sc->sc_msr; 596 if (lsr != NULL) 597 *lsr = sc->sc_lsr; 598 } 599 600 void 601 uftdi_break(void *vsc, int portno, int onoff) 602 { 603 struct uftdi_softc *sc = vsc; 604 usb_device_request_t req; 605 int data; 606 607 DPRINTF(("uftdi_break: sc=%p, port=%d onoff=%d\n", vsc, portno, 608 onoff)); 609 610 if (onoff) { 611 data = sc->last_lcr | FTDI_SIO_SET_BREAK; 612 } else { 613 data = sc->last_lcr; 614 } 615 616 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 617 req.bRequest = FTDI_SIO_SET_DATA; 618 USETW(req.wValue, data); 619 USETW(req.wIndex, portno); 620 USETW(req.wLength, 0); 621 (void)usbd_do_request(sc->sc_udev, &req, NULL); 622 } 623
Indexes created Fri Oct 03 02:09:57 GMT 2025