uftdi.c revision 1.26
1 /* $NetBSD: uftdi.c,v 1.26 2006/09/24 17:17:17 christos 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 1.26 2006/09/24 17:17:17 christos 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_8U100AX }, 136 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_SERIAL_8U232AM }, 137 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_KW }, 138 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_YS }, 139 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_Y6 }, 140 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_Y8 }, 141 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_IC }, 142 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_DB9 }, 143 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_RS232 }, 144 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MHAM_Y9 }, 145 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_COASTAL_TNCX }, 146 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_SEMC_DSS20 }, 147 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_LK202_24_USB }, 148 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_LK204_24_USB }, 149 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_MX200_USB }, 150 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_CFA_631 }, 151 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_CFA_632 }, 152 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_CFA_633 }, 153 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_CFA_634 }, 154 { USB_VENDOR_INTREPIDCS, USB_PRODUCT_INTREPIDCS_VALUECAN }, 155 { USB_VENDOR_INTREPIDCS, USB_PRODUCT_INTREPIDCS_NEOVI }, 156 { USB_VENDOR_SEALEVEL, USB_PRODUCT_SEALEVEL_USBSERIAL }, 157 { USB_VENDOR_SIIG2, USB_PRODUCT_SIIG2_US2308 }, 158 }; 159 #define uftdi_lookup(v, p) usb_lookup(uftdi_devs, v, p) 160 161 USB_DECLARE_DRIVER(uftdi); 162 163 USB_MATCH(uftdi) 164 { 165 USB_MATCH_START(uftdi, uaa); 166 167 if (uaa->iface != NULL) 168 return (UMATCH_NONE); 169 170 DPRINTFN(20,("uftdi: vendor=0x%x, product=0x%x\n", 171 uaa->vendor, uaa->product)); 172 173 return (uftdi_lookup(uaa->vendor, uaa->product) != NULL ? 174 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 175 } 176 177 USB_ATTACH(uftdi) 178 { 179 USB_ATTACH_START(uftdi, sc, uaa); 180 usbd_device_handle dev = uaa->device; 181 usbd_interface_handle iface; 182 usb_interface_descriptor_t *id; 183 usb_endpoint_descriptor_t *ed; 184 char *devinfop; 185 char *devname = USBDEVNAME(sc->sc_dev); 186 int i; 187 usbd_status err; 188 struct ucom_attach_args uca; 189 190 DPRINTFN(10,("\nuftdi_attach: sc=%p\n", sc)); 191 192 /* Move the device into the configured state. */ 193 err = usbd_set_config_index(dev, UFTDI_CONFIG_INDEX, 1); 194 if (err) { 195 printf("\n%s: failed to set configuration, err=%s\n", 196 devname, usbd_errstr(err)); 197 goto bad; 198 } 199 200 err = usbd_device2interface_handle(dev, UFTDI_IFACE_INDEX, &iface); 201 if (err) { 202 printf("\n%s: failed to get interface, err=%s\n", 203 devname, usbd_errstr(err)); 204 goto bad; 205 } 206 207 devinfop = usbd_devinfo_alloc(dev, 0); 208 USB_ATTACH_SETUP; 209 printf("%s: %s\n", devname, devinfop); 210 usbd_devinfo_free(devinfop); 211 212 id = usbd_get_interface_descriptor(iface); 213 214 sc->sc_udev = dev; 215 sc->sc_iface = iface; 216 217 switch( uaa->vendor ) { 218 case USB_VENDOR_FTDI: 219 switch (uaa->product) { 220 case USB_PRODUCT_FTDI_SERIAL_8U100AX: 221 sc->sc_type = UFTDI_TYPE_SIO; 222 sc->sc_hdrlen = 1; 223 break; 224 default: /* Most uftdi devices are 8U232AM */ 225 sc->sc_type = UFTDI_TYPE_8U232AM; 226 sc->sc_hdrlen = 0; 227 } 228 break; 229 default: /* Most uftdi devices are 8U232AM */ 230 sc->sc_type = UFTDI_TYPE_8U232AM; 231 sc->sc_hdrlen = 0; 232 } 233 234 uca.bulkin = uca.bulkout = -1; 235 for (i = 0; i < id->bNumEndpoints; i++) { 236 int addr, dir, attr; 237 ed = usbd_interface2endpoint_descriptor(iface, i); 238 if (ed == NULL) { 239 printf("%s: could not read endpoint descriptor" 240 ": %s\n", devname, usbd_errstr(err)); 241 goto bad; 242 } 243 244 addr = ed->bEndpointAddress; 245 dir = UE_GET_DIR(ed->bEndpointAddress); 246 attr = ed->bmAttributes & UE_XFERTYPE; 247 if (dir == UE_DIR_IN && attr == UE_BULK) 248 uca.bulkin = addr; 249 else if (dir == UE_DIR_OUT && attr == UE_BULK) 250 uca.bulkout = addr; 251 else { 252 printf("%s: unexpected endpoint\n", devname); 253 goto bad; 254 } 255 } 256 if (uca.bulkin == -1) { 257 printf("%s: Could not find data bulk in\n", 258 USBDEVNAME(sc->sc_dev)); 259 goto bad; 260 } 261 if (uca.bulkout == -1) { 262 printf("%s: Could not find data bulk out\n", 263 USBDEVNAME(sc->sc_dev)); 264 goto bad; 265 } 266 267 uca.portno = FTDI_PIT_SIOA; 268 /* bulkin, bulkout set above */ 269 uca.ibufsize = UFTDIIBUFSIZE; 270 uca.obufsize = UFTDIOBUFSIZE - sc->sc_hdrlen; 271 uca.ibufsizepad = UFTDIIBUFSIZE; 272 uca.opkthdrlen = sc->sc_hdrlen; 273 uca.device = dev; 274 uca.iface = iface; 275 uca.methods = &uftdi_methods; 276 uca.arg = sc; 277 uca.info = NULL; 278 279 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 280 USBDEV(sc->sc_dev)); 281 282 DPRINTF(("uftdi: in=0x%x out=0x%x\n", uca.bulkin, uca.bulkout)); 283 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca, 284 ucomprint, ucomsubmatch); 285 286 USB_ATTACH_SUCCESS_RETURN; 287 288 bad: 289 DPRINTF(("uftdi_attach: ATTACH ERROR\n")); 290 sc->sc_dying = 1; 291 USB_ATTACH_ERROR_RETURN; 292 } 293 294 int 295 uftdi_activate(device_ptr_t self, enum devact act) 296 { 297 struct uftdi_softc *sc = (struct uftdi_softc *)self; 298 int rv = 0; 299 300 switch (act) { 301 case DVACT_ACTIVATE: 302 return (EOPNOTSUPP); 303 304 case DVACT_DEACTIVATE: 305 if (sc->sc_subdev != NULL) 306 rv = config_deactivate(sc->sc_subdev); 307 sc->sc_dying = 1; 308 break; 309 } 310 return (rv); 311 } 312 313 int 314 uftdi_detach(device_ptr_t self, int flags) 315 { 316 struct uftdi_softc *sc = (struct uftdi_softc *)self; 317 318 DPRINTF(("uftdi_detach: sc=%p flags=%d\n", sc, flags)); 319 sc->sc_dying = 1; 320 if (sc->sc_subdev != NULL) { 321 config_detach(sc->sc_subdev, flags); 322 sc->sc_subdev = NULL; 323 } 324 325 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 326 USBDEV(sc->sc_dev)); 327 328 return (0); 329 } 330 331 Static int 332 uftdi_open(void *vsc, int portno) 333 { 334 struct uftdi_softc *sc = vsc; 335 usb_device_request_t req; 336 usbd_status err; 337 struct termios t; 338 339 DPRINTF(("uftdi_open: sc=%p\n", sc)); 340 341 if (sc->sc_dying) 342 return (EIO); 343 344 /* Perform a full reset on the device */ 345 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 346 req.bRequest = FTDI_SIO_RESET; 347 USETW(req.wValue, FTDI_SIO_RESET_SIO); 348 USETW(req.wIndex, portno); 349 USETW(req.wLength, 0); 350 err = usbd_do_request(sc->sc_udev, &req, NULL); 351 if (err) 352 return (EIO); 353 354 /* Set 9600 baud, 2 stop bits, no parity, 8 bits */ 355 t.c_ospeed = 9600; 356 t.c_cflag = CSTOPB | CS8; 357 (void)uftdi_param(sc, portno, &t); 358 359 /* Turn on RTS/CTS flow control */ 360 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 361 req.bRequest = FTDI_SIO_SET_FLOW_CTRL; 362 USETW(req.wValue, 0); 363 USETW2(req.wIndex, FTDI_SIO_RTS_CTS_HS, portno); 364 USETW(req.wLength, 0); 365 err = usbd_do_request(sc->sc_udev, &req, NULL); 366 if (err) 367 return (EIO); 368 369 return (0); 370 } 371 372 Static void 373 uftdi_read(void *vsc, int portno, u_char **ptr, u_int32_t *count) 374 { 375 struct uftdi_softc *sc = vsc; 376 u_char msr, lsr; 377 378 DPRINTFN(15,("uftdi_read: sc=%p, port=%d count=%d\n", sc, portno, 379 *count)); 380 381 msr = FTDI_GET_MSR(*ptr); 382 lsr = FTDI_GET_LSR(*ptr); 383 384 #ifdef UFTDI_DEBUG 385 if (*count != 2) 386 DPRINTFN(10,("uftdi_read: sc=%p, port=%d count=%d data[0]=" 387 "0x%02x\n", sc, portno, *count, (*ptr)[2])); 388 #endif 389 390 if (sc->sc_msr != msr || 391 (sc->sc_lsr & FTDI_LSR_MASK) != (lsr & FTDI_LSR_MASK)) { 392 DPRINTF(("uftdi_read: status change msr=0x%02x(0x%02x) " 393 "lsr=0x%02x(0x%02x)\n", msr, sc->sc_msr, 394 lsr, sc->sc_lsr)); 395 sc->sc_msr = msr; 396 sc->sc_lsr = lsr; 397 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 398 } 399 400 /* Pick up status and adjust data part. */ 401 *ptr += 2; 402 *count -= 2; 403 } 404 405 Static void 406 uftdi_write(void *vsc, int portno, u_char *to, u_char *from, u_int32_t *count) 407 { 408 struct uftdi_softc *sc = vsc; 409 410 DPRINTFN(10,("uftdi_write: sc=%p, port=%d count=%u data[0]=0x%02x\n", 411 vsc, portno, *count, from[0])); 412 413 /* Make length tag and copy data */ 414 if (sc->sc_hdrlen > 0) 415 *to = FTDI_OUT_TAG(*count, portno); 416 417 memcpy(to + sc->sc_hdrlen, from, *count); 418 *count += sc->sc_hdrlen; 419 } 420 421 Static void 422 uftdi_set(void *vsc, int portno, int reg, int onoff) 423 { 424 struct uftdi_softc *sc = vsc; 425 usb_device_request_t req; 426 int ctl; 427 428 DPRINTF(("uftdi_set: sc=%p, port=%d reg=%d onoff=%d\n", vsc, portno, 429 reg, onoff)); 430 431 switch (reg) { 432 case UCOM_SET_DTR: 433 ctl = onoff ? FTDI_SIO_SET_DTR_HIGH : FTDI_SIO_SET_DTR_LOW; 434 break; 435 case UCOM_SET_RTS: 436 ctl = onoff ? FTDI_SIO_SET_RTS_HIGH : FTDI_SIO_SET_RTS_LOW; 437 break; 438 case UCOM_SET_BREAK: 439 uftdi_break(sc, portno, onoff); 440 return; 441 default: 442 return; 443 } 444 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 445 req.bRequest = FTDI_SIO_MODEM_CTRL; 446 USETW(req.wValue, ctl); 447 USETW(req.wIndex, portno); 448 USETW(req.wLength, 0); 449 DPRINTFN(2,("uftdi_set: reqtype=0x%02x req=0x%02x value=0x%04x " 450 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 451 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 452 (void)usbd_do_request(sc->sc_udev, &req, NULL); 453 } 454 455 Static int 456 uftdi_param(void *vsc, int portno, struct termios *t) 457 { 458 struct uftdi_softc *sc = vsc; 459 usb_device_request_t req; 460 usbd_status err; 461 int rate, data, flow; 462 463 DPRINTF(("uftdi_param: sc=%p\n", sc)); 464 465 if (sc->sc_dying) 466 return (EIO); 467 468 switch (sc->sc_type) { 469 case UFTDI_TYPE_SIO: 470 switch (t->c_ospeed) { 471 case 300: rate = ftdi_sio_b300; break; 472 case 600: rate = ftdi_sio_b600; break; 473 case 1200: rate = ftdi_sio_b1200; break; 474 case 2400: rate = ftdi_sio_b2400; break; 475 case 4800: rate = ftdi_sio_b4800; break; 476 case 9600: rate = ftdi_sio_b9600; break; 477 case 19200: rate = ftdi_sio_b19200; break; 478 case 38400: rate = ftdi_sio_b38400; break; 479 case 57600: rate = ftdi_sio_b57600; break; 480 case 115200: rate = ftdi_sio_b115200; break; 481 default: 482 return (EINVAL); 483 } 484 break; 485 486 case UFTDI_TYPE_8U232AM: 487 switch(t->c_ospeed) { 488 case 300: rate = ftdi_8u232am_b300; break; 489 case 600: rate = ftdi_8u232am_b600; break; 490 case 1200: rate = ftdi_8u232am_b1200; break; 491 case 2400: rate = ftdi_8u232am_b2400; break; 492 case 4800: rate = ftdi_8u232am_b4800; break; 493 case 9600: rate = ftdi_8u232am_b9600; break; 494 case 19200: rate = ftdi_8u232am_b19200; break; 495 case 38400: rate = ftdi_8u232am_b38400; break; 496 case 57600: rate = ftdi_8u232am_b57600; break; 497 case 115200: rate = ftdi_8u232am_b115200; break; 498 case 230400: rate = ftdi_8u232am_b230400; break; 499 case 460800: rate = ftdi_8u232am_b460800; break; 500 case 921600: rate = ftdi_8u232am_b921600; break; 501 default: 502 return (EINVAL); 503 } 504 break; 505 506 default: 507 return (EINVAL); 508 } 509 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 510 req.bRequest = FTDI_SIO_SET_BAUD_RATE; 511 USETW(req.wValue, rate); 512 USETW(req.wIndex, portno); 513 USETW(req.wLength, 0); 514 DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x " 515 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 516 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 517 err = usbd_do_request(sc->sc_udev, &req, NULL); 518 if (err) 519 return (EIO); 520 521 if (ISSET(t->c_cflag, CSTOPB)) 522 data = FTDI_SIO_SET_DATA_STOP_BITS_2; 523 else 524 data = FTDI_SIO_SET_DATA_STOP_BITS_1; 525 if (ISSET(t->c_cflag, PARENB)) { 526 if (ISSET(t->c_cflag, PARODD)) 527 data |= FTDI_SIO_SET_DATA_PARITY_ODD; 528 else 529 data |= FTDI_SIO_SET_DATA_PARITY_EVEN; 530 } else 531 data |= FTDI_SIO_SET_DATA_PARITY_NONE; 532 switch (ISSET(t->c_cflag, CSIZE)) { 533 case CS5: 534 data |= FTDI_SIO_SET_DATA_BITS(5); 535 break; 536 case CS6: 537 data |= FTDI_SIO_SET_DATA_BITS(6); 538 break; 539 case CS7: 540 data |= FTDI_SIO_SET_DATA_BITS(7); 541 break; 542 case CS8: 543 data |= FTDI_SIO_SET_DATA_BITS(8); 544 break; 545 } 546 sc->last_lcr = data; 547 548 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 549 req.bRequest = FTDI_SIO_SET_DATA; 550 USETW(req.wValue, data); 551 USETW(req.wIndex, portno); 552 USETW(req.wLength, 0); 553 DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x " 554 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 555 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 556 err = usbd_do_request(sc->sc_udev, &req, NULL); 557 if (err) 558 return (EIO); 559 560 if (ISSET(t->c_cflag, CRTSCTS)) { 561 flow = FTDI_SIO_RTS_CTS_HS; 562 USETW(req.wValue, 0); 563 } else if (ISSET(t->c_iflag, IXON|IXOFF)) { 564 flow = FTDI_SIO_XON_XOFF_HS; 565 USETW2(req.wValue, t->c_cc[VSTOP], t->c_cc[VSTART]); 566 } else { 567 flow = FTDI_SIO_DISABLE_FLOW_CTRL; 568 USETW(req.wValue, 0); 569 } 570 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 571 req.bRequest = FTDI_SIO_SET_FLOW_CTRL; 572 USETW2(req.wIndex, flow, portno); 573 USETW(req.wLength, 0); 574 err = usbd_do_request(sc->sc_udev, &req, NULL); 575 if (err) 576 return (EIO); 577 578 return (0); 579 } 580 581 void 582 uftdi_get_status(void *vsc, int portno, u_char *lsr, u_char *msr) 583 { 584 struct uftdi_softc *sc = vsc; 585 586 DPRINTF(("uftdi_status: msr=0x%02x lsr=0x%02x\n", 587 sc->sc_msr, sc->sc_lsr)); 588 589 if (msr != NULL) 590 *msr = sc->sc_msr; 591 if (lsr != NULL) 592 *lsr = sc->sc_lsr; 593 } 594 595 void 596 uftdi_break(void *vsc, int portno, int onoff) 597 { 598 struct uftdi_softc *sc = vsc; 599 usb_device_request_t req; 600 int data; 601 602 DPRINTF(("uftdi_break: sc=%p, port=%d onoff=%d\n", vsc, portno, 603 onoff)); 604 605 if (onoff) { 606 data = sc->last_lcr | FTDI_SIO_SET_BREAK; 607 } else { 608 data = sc->last_lcr; 609 } 610 611 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 612 req.bRequest = FTDI_SIO_SET_DATA; 613 USETW(req.wValue, data); 614 USETW(req.wIndex, portno); 615 USETW(req.wLength, 0); 616 (void)usbd_do_request(sc->sc_udev, &req, NULL); 617 } 618
Indexes created Wed Oct 01 07:09:59 GMT 2025