uftdi.c revision 1.27
1 /* $NetBSD: uftdi.c,v 1.27 2006/10/08 08:14:24 xtraeme 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 1.27 2006/10/08 08:14:24 xtraeme 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_MX4_MX5_USB }, 151 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_CFA_631 }, 152 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_CFA_632 }, 153 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_CFA_633 }, 154 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_CFA_634 }, 155 { USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LCD_CFA_635 }, 156 { USB_VENDOR_INTREPIDCS, USB_PRODUCT_INTREPIDCS_VALUECAN }, 157 { USB_VENDOR_INTREPIDCS, USB_PRODUCT_INTREPIDCS_NEOVI }, 158 { USB_VENDOR_SEALEVEL, USB_PRODUCT_SEALEVEL_USBSERIAL }, 159 { USB_VENDOR_SIIG2, USB_PRODUCT_SIIG2_US2308 }, 160 }; 161 #define uftdi_lookup(v, p) usb_lookup(uftdi_devs, v, p) 162 163 USB_DECLARE_DRIVER(uftdi); 164 165 USB_MATCH(uftdi) 166 { 167 USB_MATCH_START(uftdi, uaa); 168 169 if (uaa->iface != NULL) 170 return (UMATCH_NONE); 171 172 DPRINTFN(20,("uftdi: vendor=0x%x, product=0x%x\n", 173 uaa->vendor, uaa->product)); 174 175 return (uftdi_lookup(uaa->vendor, uaa->product) != NULL ? 176 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 177 } 178 179 USB_ATTACH(uftdi) 180 { 181 USB_ATTACH_START(uftdi, sc, uaa); 182 usbd_device_handle dev = uaa->device; 183 usbd_interface_handle iface; 184 usb_interface_descriptor_t *id; 185 usb_endpoint_descriptor_t *ed; 186 char *devinfop; 187 char *devname = USBDEVNAME(sc->sc_dev); 188 int i; 189 usbd_status err; 190 struct ucom_attach_args uca; 191 192 DPRINTFN(10,("\nuftdi_attach: sc=%p\n", sc)); 193 194 /* Move the device into the configured state. */ 195 err = usbd_set_config_index(dev, UFTDI_CONFIG_INDEX, 1); 196 if (err) { 197 printf("\n%s: failed to set configuration, err=%s\n", 198 devname, usbd_errstr(err)); 199 goto bad; 200 } 201 202 err = usbd_device2interface_handle(dev, UFTDI_IFACE_INDEX, &iface); 203 if (err) { 204 printf("\n%s: failed to get interface, err=%s\n", 205 devname, usbd_errstr(err)); 206 goto bad; 207 } 208 209 devinfop = usbd_devinfo_alloc(dev, 0); 210 USB_ATTACH_SETUP; 211 printf("%s: %s\n", devname, devinfop); 212 usbd_devinfo_free(devinfop); 213 214 id = usbd_get_interface_descriptor(iface); 215 216 sc->sc_udev = dev; 217 sc->sc_iface = iface; 218 219 switch( uaa->vendor ) { 220 case USB_VENDOR_FTDI: 221 switch (uaa->product) { 222 case USB_PRODUCT_FTDI_SERIAL_8U100AX: 223 sc->sc_type = UFTDI_TYPE_SIO; 224 sc->sc_hdrlen = 1; 225 break; 226 default: /* Most uftdi devices are 8U232AM */ 227 sc->sc_type = UFTDI_TYPE_8U232AM; 228 sc->sc_hdrlen = 0; 229 } 230 break; 231 default: /* Most uftdi devices are 8U232AM */ 232 sc->sc_type = UFTDI_TYPE_8U232AM; 233 sc->sc_hdrlen = 0; 234 } 235 236 uca.bulkin = uca.bulkout = -1; 237 for (i = 0; i < id->bNumEndpoints; i++) { 238 int addr, dir, attr; 239 ed = usbd_interface2endpoint_descriptor(iface, i); 240 if (ed == NULL) { 241 printf("%s: could not read endpoint descriptor" 242 ": %s\n", devname, usbd_errstr(err)); 243 goto bad; 244 } 245 246 addr = ed->bEndpointAddress; 247 dir = UE_GET_DIR(ed->bEndpointAddress); 248 attr = ed->bmAttributes & UE_XFERTYPE; 249 if (dir == UE_DIR_IN && attr == UE_BULK) 250 uca.bulkin = addr; 251 else if (dir == UE_DIR_OUT && attr == UE_BULK) 252 uca.bulkout = addr; 253 else { 254 printf("%s: unexpected endpoint\n", devname); 255 goto bad; 256 } 257 } 258 if (uca.bulkin == -1) { 259 printf("%s: Could not find data bulk in\n", 260 USBDEVNAME(sc->sc_dev)); 261 goto bad; 262 } 263 if (uca.bulkout == -1) { 264 printf("%s: Could not find data bulk out\n", 265 USBDEVNAME(sc->sc_dev)); 266 goto bad; 267 } 268 269 uca.portno = FTDI_PIT_SIOA; 270 /* bulkin, bulkout set above */ 271 uca.ibufsize = UFTDIIBUFSIZE; 272 uca.obufsize = UFTDIOBUFSIZE - sc->sc_hdrlen; 273 uca.ibufsizepad = UFTDIIBUFSIZE; 274 uca.opkthdrlen = sc->sc_hdrlen; 275 uca.device = dev; 276 uca.iface = iface; 277 uca.methods = &uftdi_methods; 278 uca.arg = sc; 279 uca.info = NULL; 280 281 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 282 USBDEV(sc->sc_dev)); 283 284 DPRINTF(("uftdi: in=0x%x out=0x%x\n", uca.bulkin, uca.bulkout)); 285 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca, 286 ucomprint, ucomsubmatch); 287 288 USB_ATTACH_SUCCESS_RETURN; 289 290 bad: 291 DPRINTF(("uftdi_attach: ATTACH ERROR\n")); 292 sc->sc_dying = 1; 293 USB_ATTACH_ERROR_RETURN; 294 } 295 296 int 297 uftdi_activate(device_ptr_t self, enum devact act) 298 { 299 struct uftdi_softc *sc = (struct uftdi_softc *)self; 300 int rv = 0; 301 302 switch (act) { 303 case DVACT_ACTIVATE: 304 return (EOPNOTSUPP); 305 306 case DVACT_DEACTIVATE: 307 if (sc->sc_subdev != NULL) 308 rv = config_deactivate(sc->sc_subdev); 309 sc->sc_dying = 1; 310 break; 311 } 312 return (rv); 313 } 314 315 int 316 uftdi_detach(device_ptr_t self, int flags) 317 { 318 struct uftdi_softc *sc = (struct uftdi_softc *)self; 319 320 DPRINTF(("uftdi_detach: sc=%p flags=%d\n", sc, flags)); 321 sc->sc_dying = 1; 322 if (sc->sc_subdev != NULL) { 323 config_detach(sc->sc_subdev, flags); 324 sc->sc_subdev = NULL; 325 } 326 327 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 328 USBDEV(sc->sc_dev)); 329 330 return (0); 331 } 332 333 Static int 334 uftdi_open(void *vsc, int portno) 335 { 336 struct uftdi_softc *sc = vsc; 337 usb_device_request_t req; 338 usbd_status err; 339 struct termios t; 340 341 DPRINTF(("uftdi_open: sc=%p\n", sc)); 342 343 if (sc->sc_dying) 344 return (EIO); 345 346 /* Perform a full reset on the device */ 347 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 348 req.bRequest = FTDI_SIO_RESET; 349 USETW(req.wValue, FTDI_SIO_RESET_SIO); 350 USETW(req.wIndex, portno); 351 USETW(req.wLength, 0); 352 err = usbd_do_request(sc->sc_udev, &req, NULL); 353 if (err) 354 return (EIO); 355 356 /* Set 9600 baud, 2 stop bits, no parity, 8 bits */ 357 t.c_ospeed = 9600; 358 t.c_cflag = CSTOPB | CS8; 359 (void)uftdi_param(sc, portno, &t); 360 361 /* Turn on RTS/CTS flow control */ 362 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 363 req.bRequest = FTDI_SIO_SET_FLOW_CTRL; 364 USETW(req.wValue, 0); 365 USETW2(req.wIndex, FTDI_SIO_RTS_CTS_HS, portno); 366 USETW(req.wLength, 0); 367 err = usbd_do_request(sc->sc_udev, &req, NULL); 368 if (err) 369 return (EIO); 370 371 return (0); 372 } 373 374 Static void 375 uftdi_read(void *vsc, int portno, u_char **ptr, u_int32_t *count) 376 { 377 struct uftdi_softc *sc = vsc; 378 u_char msr, lsr; 379 380 DPRINTFN(15,("uftdi_read: sc=%p, port=%d count=%d\n", sc, portno, 381 *count)); 382 383 msr = FTDI_GET_MSR(*ptr); 384 lsr = FTDI_GET_LSR(*ptr); 385 386 #ifdef UFTDI_DEBUG 387 if (*count != 2) 388 DPRINTFN(10,("uftdi_read: sc=%p, port=%d count=%d data[0]=" 389 "0x%02x\n", sc, portno, *count, (*ptr)[2])); 390 #endif 391 392 if (sc->sc_msr != msr || 393 (sc->sc_lsr & FTDI_LSR_MASK) != (lsr & FTDI_LSR_MASK)) { 394 DPRINTF(("uftdi_read: status change msr=0x%02x(0x%02x) " 395 "lsr=0x%02x(0x%02x)\n", msr, sc->sc_msr, 396 lsr, sc->sc_lsr)); 397 sc->sc_msr = msr; 398 sc->sc_lsr = lsr; 399 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 400 } 401 402 /* Pick up status and adjust data part. */ 403 *ptr += 2; 404 *count -= 2; 405 } 406 407 Static void 408 uftdi_write(void *vsc, int portno, u_char *to, u_char *from, u_int32_t *count) 409 { 410 struct uftdi_softc *sc = vsc; 411 412 DPRINTFN(10,("uftdi_write: sc=%p, port=%d count=%u data[0]=0x%02x\n", 413 vsc, portno, *count, from[0])); 414 415 /* Make length tag and copy data */ 416 if (sc->sc_hdrlen > 0) 417 *to = FTDI_OUT_TAG(*count, portno); 418 419 memcpy(to + sc->sc_hdrlen, from, *count); 420 *count += sc->sc_hdrlen; 421 } 422 423 Static void 424 uftdi_set(void *vsc, int portno, int reg, int onoff) 425 { 426 struct uftdi_softc *sc = vsc; 427 usb_device_request_t req; 428 int ctl; 429 430 DPRINTF(("uftdi_set: sc=%p, port=%d reg=%d onoff=%d\n", vsc, portno, 431 reg, onoff)); 432 433 switch (reg) { 434 case UCOM_SET_DTR: 435 ctl = onoff ? FTDI_SIO_SET_DTR_HIGH : FTDI_SIO_SET_DTR_LOW; 436 break; 437 case UCOM_SET_RTS: 438 ctl = onoff ? FTDI_SIO_SET_RTS_HIGH : FTDI_SIO_SET_RTS_LOW; 439 break; 440 case UCOM_SET_BREAK: 441 uftdi_break(sc, portno, onoff); 442 return; 443 default: 444 return; 445 } 446 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 447 req.bRequest = FTDI_SIO_MODEM_CTRL; 448 USETW(req.wValue, ctl); 449 USETW(req.wIndex, portno); 450 USETW(req.wLength, 0); 451 DPRINTFN(2,("uftdi_set: reqtype=0x%02x req=0x%02x value=0x%04x " 452 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 453 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 454 (void)usbd_do_request(sc->sc_udev, &req, NULL); 455 } 456 457 Static int 458 uftdi_param(void *vsc, int portno, struct termios *t) 459 { 460 struct uftdi_softc *sc = vsc; 461 usb_device_request_t req; 462 usbd_status err; 463 int rate, data, flow; 464 465 DPRINTF(("uftdi_param: sc=%p\n", sc)); 466 467 if (sc->sc_dying) 468 return (EIO); 469 470 switch (sc->sc_type) { 471 case UFTDI_TYPE_SIO: 472 switch (t->c_ospeed) { 473 case 300: rate = ftdi_sio_b300; break; 474 case 600: rate = ftdi_sio_b600; break; 475 case 1200: rate = ftdi_sio_b1200; break; 476 case 2400: rate = ftdi_sio_b2400; break; 477 case 4800: rate = ftdi_sio_b4800; break; 478 case 9600: rate = ftdi_sio_b9600; break; 479 case 19200: rate = ftdi_sio_b19200; break; 480 case 38400: rate = ftdi_sio_b38400; break; 481 case 57600: rate = ftdi_sio_b57600; break; 482 case 115200: rate = ftdi_sio_b115200; break; 483 default: 484 return (EINVAL); 485 } 486 break; 487 488 case UFTDI_TYPE_8U232AM: 489 switch(t->c_ospeed) { 490 case 300: rate = ftdi_8u232am_b300; break; 491 case 600: rate = ftdi_8u232am_b600; break; 492 case 1200: rate = ftdi_8u232am_b1200; break; 493 case 2400: rate = ftdi_8u232am_b2400; break; 494 case 4800: rate = ftdi_8u232am_b4800; break; 495 case 9600: rate = ftdi_8u232am_b9600; break; 496 case 19200: rate = ftdi_8u232am_b19200; break; 497 case 38400: rate = ftdi_8u232am_b38400; break; 498 case 57600: rate = ftdi_8u232am_b57600; break; 499 case 115200: rate = ftdi_8u232am_b115200; break; 500 case 230400: rate = ftdi_8u232am_b230400; break; 501 case 460800: rate = ftdi_8u232am_b460800; break; 502 case 921600: rate = ftdi_8u232am_b921600; break; 503 default: 504 return (EINVAL); 505 } 506 break; 507 508 default: 509 return (EINVAL); 510 } 511 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 512 req.bRequest = FTDI_SIO_SET_BAUD_RATE; 513 USETW(req.wValue, rate); 514 USETW(req.wIndex, portno); 515 USETW(req.wLength, 0); 516 DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x " 517 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 518 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 519 err = usbd_do_request(sc->sc_udev, &req, NULL); 520 if (err) 521 return (EIO); 522 523 if (ISSET(t->c_cflag, CSTOPB)) 524 data = FTDI_SIO_SET_DATA_STOP_BITS_2; 525 else 526 data = FTDI_SIO_SET_DATA_STOP_BITS_1; 527 if (ISSET(t->c_cflag, PARENB)) { 528 if (ISSET(t->c_cflag, PARODD)) 529 data |= FTDI_SIO_SET_DATA_PARITY_ODD; 530 else 531 data |= FTDI_SIO_SET_DATA_PARITY_EVEN; 532 } else 533 data |= FTDI_SIO_SET_DATA_PARITY_NONE; 534 switch (ISSET(t->c_cflag, CSIZE)) { 535 case CS5: 536 data |= FTDI_SIO_SET_DATA_BITS(5); 537 break; 538 case CS6: 539 data |= FTDI_SIO_SET_DATA_BITS(6); 540 break; 541 case CS7: 542 data |= FTDI_SIO_SET_DATA_BITS(7); 543 break; 544 case CS8: 545 data |= FTDI_SIO_SET_DATA_BITS(8); 546 break; 547 } 548 sc->last_lcr = data; 549 550 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 551 req.bRequest = FTDI_SIO_SET_DATA; 552 USETW(req.wValue, data); 553 USETW(req.wIndex, portno); 554 USETW(req.wLength, 0); 555 DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x " 556 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 557 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 558 err = usbd_do_request(sc->sc_udev, &req, NULL); 559 if (err) 560 return (EIO); 561 562 if (ISSET(t->c_cflag, CRTSCTS)) { 563 flow = FTDI_SIO_RTS_CTS_HS; 564 USETW(req.wValue, 0); 565 } else if (ISSET(t->c_iflag, IXON|IXOFF)) { 566 flow = FTDI_SIO_XON_XOFF_HS; 567 USETW2(req.wValue, t->c_cc[VSTOP], t->c_cc[VSTART]); 568 } else { 569 flow = FTDI_SIO_DISABLE_FLOW_CTRL; 570 USETW(req.wValue, 0); 571 } 572 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 573 req.bRequest = FTDI_SIO_SET_FLOW_CTRL; 574 USETW2(req.wIndex, flow, portno); 575 USETW(req.wLength, 0); 576 err = usbd_do_request(sc->sc_udev, &req, NULL); 577 if (err) 578 return (EIO); 579 580 return (0); 581 } 582 583 void 584 uftdi_get_status(void *vsc, int portno, u_char *lsr, u_char *msr) 585 { 586 struct uftdi_softc *sc = vsc; 587 588 DPRINTF(("uftdi_status: msr=0x%02x lsr=0x%02x\n", 589 sc->sc_msr, sc->sc_lsr)); 590 591 if (msr != NULL) 592 *msr = sc->sc_msr; 593 if (lsr != NULL) 594 *lsr = sc->sc_lsr; 595 } 596 597 void 598 uftdi_break(void *vsc, int portno, int onoff) 599 { 600 struct uftdi_softc *sc = vsc; 601 usb_device_request_t req; 602 int data; 603 604 DPRINTF(("uftdi_break: sc=%p, port=%d onoff=%d\n", vsc, portno, 605 onoff)); 606 607 if (onoff) { 608 data = sc->last_lcr | FTDI_SIO_SET_BREAK; 609 } else { 610 data = sc->last_lcr; 611 } 612 613 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 614 req.bRequest = FTDI_SIO_SET_DATA; 615 USETW(req.wValue, data); 616 USETW(req.wIndex, portno); 617 USETW(req.wLength, 0); 618 (void)usbd_do_request(sc->sc_udev, &req, NULL); 619 } 620
Indexes created Mon Sep 29 21:09:56 GMT 2025