uftdi.c revision 1.30
1 /* $NetBSD: uftdi.c,v 1.30 2007/03/08 23:21:08 riz 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 1.30 2007/03/08 23:21:08 riz 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 if (uaa->iface != NULL) 171 return (UMATCH_NONE); 172 173 DPRINTFN(20,("uftdi: vendor=0x%x, product=0x%x\n", 174 uaa->vendor, uaa->product)); 175 176 return (uftdi_lookup(uaa->vendor, uaa->product) != NULL ? 177 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 178 } 179 180 USB_ATTACH(uftdi) 181 { 182 USB_ATTACH_START(uftdi, sc, uaa); 183 usbd_device_handle dev = uaa->device; 184 usbd_interface_handle iface; 185 usb_interface_descriptor_t *id; 186 usb_endpoint_descriptor_t *ed; 187 char *devinfop; 188 char *devname = USBDEVNAME(sc->sc_dev); 189 int i; 190 usbd_status err; 191 struct ucom_attach_args uca; 192 193 DPRINTFN(10,("\nuftdi_attach: sc=%p\n", sc)); 194 195 /* Move the device into the configured state. */ 196 err = usbd_set_config_index(dev, UFTDI_CONFIG_INDEX, 1); 197 if (err) { 198 printf("\n%s: failed to set configuration, err=%s\n", 199 devname, usbd_errstr(err)); 200 goto bad; 201 } 202 203 err = usbd_device2interface_handle(dev, UFTDI_IFACE_INDEX, &iface); 204 if (err) { 205 printf("\n%s: failed to get interface, err=%s\n", 206 devname, usbd_errstr(err)); 207 goto bad; 208 } 209 210 devinfop = usbd_devinfo_alloc(dev, 0); 211 USB_ATTACH_SETUP; 212 printf("%s: %s\n", devname, devinfop); 213 usbd_devinfo_free(devinfop); 214 215 id = usbd_get_interface_descriptor(iface); 216 217 sc->sc_udev = dev; 218 sc->sc_iface = iface; 219 220 switch( uaa->vendor ) { 221 case USB_VENDOR_FTDI: 222 switch (uaa->product) { 223 case USB_PRODUCT_FTDI_SERIAL_8U100AX: 224 sc->sc_type = UFTDI_TYPE_SIO; 225 sc->sc_hdrlen = 1; 226 break; 227 default: /* Most uftdi devices are 8U232AM */ 228 sc->sc_type = UFTDI_TYPE_8U232AM; 229 sc->sc_hdrlen = 0; 230 } 231 break; 232 default: /* Most uftdi devices are 8U232AM */ 233 sc->sc_type = UFTDI_TYPE_8U232AM; 234 sc->sc_hdrlen = 0; 235 } 236 237 uca.bulkin = uca.bulkout = -1; 238 for (i = 0; i < id->bNumEndpoints; i++) { 239 int addr, dir, attr; 240 ed = usbd_interface2endpoint_descriptor(iface, i); 241 if (ed == NULL) { 242 printf("%s: could not read endpoint descriptor" 243 ": %s\n", devname, usbd_errstr(err)); 244 goto bad; 245 } 246 247 addr = ed->bEndpointAddress; 248 dir = UE_GET_DIR(ed->bEndpointAddress); 249 attr = ed->bmAttributes & UE_XFERTYPE; 250 if (dir == UE_DIR_IN && attr == UE_BULK) 251 uca.bulkin = addr; 252 else if (dir == UE_DIR_OUT && attr == UE_BULK) 253 uca.bulkout = addr; 254 else { 255 printf("%s: unexpected endpoint\n", devname); 256 goto bad; 257 } 258 } 259 if (uca.bulkin == -1) { 260 printf("%s: Could not find data bulk in\n", 261 USBDEVNAME(sc->sc_dev)); 262 goto bad; 263 } 264 if (uca.bulkout == -1) { 265 printf("%s: Could not find data bulk out\n", 266 USBDEVNAME(sc->sc_dev)); 267 goto bad; 268 } 269 270 uca.portno = FTDI_PIT_SIOA; 271 /* bulkin, bulkout set above */ 272 uca.ibufsize = UFTDIIBUFSIZE; 273 uca.obufsize = UFTDIOBUFSIZE - sc->sc_hdrlen; 274 uca.ibufsizepad = UFTDIIBUFSIZE; 275 uca.opkthdrlen = sc->sc_hdrlen; 276 uca.device = dev; 277 uca.iface = iface; 278 uca.methods = &uftdi_methods; 279 uca.arg = sc; 280 uca.info = NULL; 281 282 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 283 USBDEV(sc->sc_dev)); 284 285 DPRINTF(("uftdi: in=0x%x out=0x%x\n", uca.bulkin, uca.bulkout)); 286 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca, 287 ucomprint, ucomsubmatch); 288 289 USB_ATTACH_SUCCESS_RETURN; 290 291 bad: 292 DPRINTF(("uftdi_attach: ATTACH ERROR\n")); 293 sc->sc_dying = 1; 294 USB_ATTACH_ERROR_RETURN; 295 } 296 297 int 298 uftdi_activate(device_ptr_t self, enum devact act) 299 { 300 struct uftdi_softc *sc = (struct uftdi_softc *)self; 301 int rv = 0; 302 303 switch (act) { 304 case DVACT_ACTIVATE: 305 return (EOPNOTSUPP); 306 307 case DVACT_DEACTIVATE: 308 if (sc->sc_subdev != NULL) 309 rv = config_deactivate(sc->sc_subdev); 310 sc->sc_dying = 1; 311 break; 312 } 313 return (rv); 314 } 315 316 int 317 uftdi_detach(device_ptr_t self, int flags) 318 { 319 struct uftdi_softc *sc = (struct uftdi_softc *)self; 320 321 DPRINTF(("uftdi_detach: sc=%p flags=%d\n", sc, flags)); 322 sc->sc_dying = 1; 323 if (sc->sc_subdev != NULL) { 324 config_detach(sc->sc_subdev, flags); 325 sc->sc_subdev = NULL; 326 } 327 328 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 329 USBDEV(sc->sc_dev)); 330 331 return (0); 332 } 333 334 Static int 335 uftdi_open(void *vsc, int portno) 336 { 337 struct uftdi_softc *sc = vsc; 338 usb_device_request_t req; 339 usbd_status err; 340 struct termios t; 341 342 DPRINTF(("uftdi_open: sc=%p\n", sc)); 343 344 if (sc->sc_dying) 345 return (EIO); 346 347 /* Perform a full reset on the device */ 348 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 349 req.bRequest = FTDI_SIO_RESET; 350 USETW(req.wValue, FTDI_SIO_RESET_SIO); 351 USETW(req.wIndex, portno); 352 USETW(req.wLength, 0); 353 err = usbd_do_request(sc->sc_udev, &req, NULL); 354 if (err) 355 return (EIO); 356 357 /* Set 9600 baud, 2 stop bits, no parity, 8 bits */ 358 t.c_ospeed = 9600; 359 t.c_cflag = CSTOPB | CS8; 360 (void)uftdi_param(sc, portno, &t); 361 362 /* Turn on RTS/CTS flow control */ 363 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 364 req.bRequest = FTDI_SIO_SET_FLOW_CTRL; 365 USETW(req.wValue, 0); 366 USETW2(req.wIndex, FTDI_SIO_RTS_CTS_HS, portno); 367 USETW(req.wLength, 0); 368 err = usbd_do_request(sc->sc_udev, &req, NULL); 369 if (err) 370 return (EIO); 371 372 return (0); 373 } 374 375 Static void 376 uftdi_read(void *vsc, int portno, u_char **ptr, u_int32_t *count) 377 { 378 struct uftdi_softc *sc = vsc; 379 u_char msr, lsr; 380 381 DPRINTFN(15,("uftdi_read: sc=%p, port=%d count=%d\n", sc, portno, 382 *count)); 383 384 msr = FTDI_GET_MSR(*ptr); 385 lsr = FTDI_GET_LSR(*ptr); 386 387 #ifdef UFTDI_DEBUG 388 if (*count != 2) 389 DPRINTFN(10,("uftdi_read: sc=%p, port=%d count=%d data[0]=" 390 "0x%02x\n", sc, portno, *count, (*ptr)[2])); 391 #endif 392 393 if (sc->sc_msr != msr || 394 (sc->sc_lsr & FTDI_LSR_MASK) != (lsr & FTDI_LSR_MASK)) { 395 DPRINTF(("uftdi_read: status change msr=0x%02x(0x%02x) " 396 "lsr=0x%02x(0x%02x)\n", msr, sc->sc_msr, 397 lsr, sc->sc_lsr)); 398 sc->sc_msr = msr; 399 sc->sc_lsr = lsr; 400 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 401 } 402 403 /* Pick up status and adjust data part. */ 404 *ptr += 2; 405 *count -= 2; 406 } 407 408 Static void 409 uftdi_write(void *vsc, int portno, u_char *to, u_char *from, u_int32_t *count) 410 { 411 struct uftdi_softc *sc = vsc; 412 413 DPRINTFN(10,("uftdi_write: sc=%p, port=%d count=%u data[0]=0x%02x\n", 414 vsc, portno, *count, from[0])); 415 416 /* Make length tag and copy data */ 417 if (sc->sc_hdrlen > 0) 418 *to = FTDI_OUT_TAG(*count, portno); 419 420 memcpy(to + sc->sc_hdrlen, from, *count); 421 *count += sc->sc_hdrlen; 422 } 423 424 Static void 425 uftdi_set(void *vsc, int portno, int reg, int onoff) 426 { 427 struct uftdi_softc *sc = vsc; 428 usb_device_request_t req; 429 int ctl; 430 431 DPRINTF(("uftdi_set: sc=%p, port=%d reg=%d onoff=%d\n", vsc, portno, 432 reg, onoff)); 433 434 switch (reg) { 435 case UCOM_SET_DTR: 436 ctl = onoff ? FTDI_SIO_SET_DTR_HIGH : FTDI_SIO_SET_DTR_LOW; 437 break; 438 case UCOM_SET_RTS: 439 ctl = onoff ? FTDI_SIO_SET_RTS_HIGH : FTDI_SIO_SET_RTS_LOW; 440 break; 441 case UCOM_SET_BREAK: 442 uftdi_break(sc, portno, onoff); 443 return; 444 default: 445 return; 446 } 447 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 448 req.bRequest = FTDI_SIO_MODEM_CTRL; 449 USETW(req.wValue, ctl); 450 USETW(req.wIndex, portno); 451 USETW(req.wLength, 0); 452 DPRINTFN(2,("uftdi_set: reqtype=0x%02x req=0x%02x value=0x%04x " 453 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 454 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 455 (void)usbd_do_request(sc->sc_udev, &req, NULL); 456 } 457 458 Static int 459 uftdi_param(void *vsc, int portno, struct termios *t) 460 { 461 struct uftdi_softc *sc = vsc; 462 usb_device_request_t req; 463 usbd_status err; 464 int rate, data, flow; 465 466 DPRINTF(("uftdi_param: sc=%p\n", sc)); 467 468 if (sc->sc_dying) 469 return (EIO); 470 471 switch (sc->sc_type) { 472 case UFTDI_TYPE_SIO: 473 switch (t->c_ospeed) { 474 case 300: rate = ftdi_sio_b300; break; 475 case 600: rate = ftdi_sio_b600; break; 476 case 1200: rate = ftdi_sio_b1200; break; 477 case 2400: rate = ftdi_sio_b2400; break; 478 case 4800: rate = ftdi_sio_b4800; break; 479 case 9600: rate = ftdi_sio_b9600; break; 480 case 19200: rate = ftdi_sio_b19200; break; 481 case 38400: rate = ftdi_sio_b38400; break; 482 case 57600: rate = ftdi_sio_b57600; break; 483 case 115200: rate = ftdi_sio_b115200; break; 484 default: 485 return (EINVAL); 486 } 487 break; 488 489 case UFTDI_TYPE_8U232AM: 490 switch(t->c_ospeed) { 491 case 300: rate = ftdi_8u232am_b300; break; 492 case 600: rate = ftdi_8u232am_b600; break; 493 case 1200: rate = ftdi_8u232am_b1200; break; 494 case 2400: rate = ftdi_8u232am_b2400; break; 495 case 4800: rate = ftdi_8u232am_b4800; break; 496 case 9600: rate = ftdi_8u232am_b9600; break; 497 case 19200: rate = ftdi_8u232am_b19200; break; 498 case 38400: rate = ftdi_8u232am_b38400; break; 499 case 57600: rate = ftdi_8u232am_b57600; break; 500 case 115200: rate = ftdi_8u232am_b115200; break; 501 case 230400: rate = ftdi_8u232am_b230400; break; 502 case 460800: rate = ftdi_8u232am_b460800; break; 503 case 921600: rate = ftdi_8u232am_b921600; break; 504 default: 505 return (EINVAL); 506 } 507 break; 508 509 default: 510 return (EINVAL); 511 } 512 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 513 req.bRequest = FTDI_SIO_SET_BAUD_RATE; 514 USETW(req.wValue, rate); 515 USETW(req.wIndex, portno); 516 USETW(req.wLength, 0); 517 DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x " 518 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 519 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 520 err = usbd_do_request(sc->sc_udev, &req, NULL); 521 if (err) 522 return (EIO); 523 524 if (ISSET(t->c_cflag, CSTOPB)) 525 data = FTDI_SIO_SET_DATA_STOP_BITS_2; 526 else 527 data = FTDI_SIO_SET_DATA_STOP_BITS_1; 528 if (ISSET(t->c_cflag, PARENB)) { 529 if (ISSET(t->c_cflag, PARODD)) 530 data |= FTDI_SIO_SET_DATA_PARITY_ODD; 531 else 532 data |= FTDI_SIO_SET_DATA_PARITY_EVEN; 533 } else 534 data |= FTDI_SIO_SET_DATA_PARITY_NONE; 535 switch (ISSET(t->c_cflag, CSIZE)) { 536 case CS5: 537 data |= FTDI_SIO_SET_DATA_BITS(5); 538 break; 539 case CS6: 540 data |= FTDI_SIO_SET_DATA_BITS(6); 541 break; 542 case CS7: 543 data |= FTDI_SIO_SET_DATA_BITS(7); 544 break; 545 case CS8: 546 data |= FTDI_SIO_SET_DATA_BITS(8); 547 break; 548 } 549 sc->last_lcr = data; 550 551 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 552 req.bRequest = FTDI_SIO_SET_DATA; 553 USETW(req.wValue, data); 554 USETW(req.wIndex, portno); 555 USETW(req.wLength, 0); 556 DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x " 557 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 558 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 559 err = usbd_do_request(sc->sc_udev, &req, NULL); 560 if (err) 561 return (EIO); 562 563 if (ISSET(t->c_cflag, CRTSCTS)) { 564 flow = FTDI_SIO_RTS_CTS_HS; 565 USETW(req.wValue, 0); 566 } else if (ISSET(t->c_iflag, IXON|IXOFF)) { 567 flow = FTDI_SIO_XON_XOFF_HS; 568 USETW2(req.wValue, t->c_cc[VSTOP], t->c_cc[VSTART]); 569 } else { 570 flow = FTDI_SIO_DISABLE_FLOW_CTRL; 571 USETW(req.wValue, 0); 572 } 573 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 574 req.bRequest = FTDI_SIO_SET_FLOW_CTRL; 575 USETW2(req.wIndex, flow, portno); 576 USETW(req.wLength, 0); 577 err = usbd_do_request(sc->sc_udev, &req, NULL); 578 if (err) 579 return (EIO); 580 581 return (0); 582 } 583 584 void 585 uftdi_get_status(void *vsc, int portno, u_char *lsr, u_char *msr) 586 { 587 struct uftdi_softc *sc = vsc; 588 589 DPRINTF(("uftdi_status: msr=0x%02x lsr=0x%02x\n", 590 sc->sc_msr, sc->sc_lsr)); 591 592 if (msr != NULL) 593 *msr = sc->sc_msr; 594 if (lsr != NULL) 595 *lsr = sc->sc_lsr; 596 } 597 598 void 599 uftdi_break(void *vsc, int portno, int onoff) 600 { 601 struct uftdi_softc *sc = vsc; 602 usb_device_request_t req; 603 int data; 604 605 DPRINTF(("uftdi_break: sc=%p, port=%d onoff=%d\n", vsc, portno, 606 onoff)); 607 608 if (onoff) { 609 data = sc->last_lcr | FTDI_SIO_SET_BREAK; 610 } else { 611 data = sc->last_lcr; 612 } 613 614 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 615 req.bRequest = FTDI_SIO_SET_DATA; 616 USETW(req.wValue, data); 617 USETW(req.wIndex, portno); 618 USETW(req.wLength, 0); 619 (void)usbd_do_request(sc->sc_udev, &req, NULL); 620 } 621
Indexes created Mon Sep 29 21:09:56 GMT 2025