uftdi.c revision 1.29.8.1
1 /* $NetBSD: uftdi.c,v 1.29.8.1 2007/06/18 13:48:13 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 1.29.8.1 2007/06/18 13:48:13 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_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 #ifndef USB_USE_IFATTACH 170 if (uaa->iface != NULL) 171 return (UMATCH_NONE); 172 #endif /* USB_USE_IFATTACH */ 173 174 DPRINTFN(20,("uftdi: vendor=0x%x, product=0x%x\n", 175 uaa->vendor, uaa->product)); 176 177 return (uftdi_lookup(uaa->vendor, uaa->product) != NULL ? 178 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 179 } 180 181 USB_ATTACH(uftdi) 182 { 183 USB_ATTACH_START(uftdi, sc, uaa); 184 usbd_device_handle dev = uaa->device; 185 usbd_interface_handle iface; 186 usb_interface_descriptor_t *id; 187 usb_endpoint_descriptor_t *ed; 188 char *devinfop; 189 char *devname = USBDEVNAME(sc->sc_dev); 190 int i; 191 usbd_status err; 192 struct ucom_attach_args uca; 193 194 DPRINTFN(10,("\nuftdi_attach: sc=%p\n", sc)); 195 196 /* Move the device into the configured state. */ 197 err = usbd_set_config_index(dev, UFTDI_CONFIG_INDEX, 1); 198 if (err) { 199 printf("\n%s: failed to set configuration, err=%s\n", 200 devname, usbd_errstr(err)); 201 goto bad; 202 } 203 204 err = usbd_device2interface_handle(dev, UFTDI_IFACE_INDEX, &iface); 205 if (err) { 206 printf("\n%s: failed to get interface, err=%s\n", 207 devname, usbd_errstr(err)); 208 goto bad; 209 } 210 211 devinfop = usbd_devinfo_alloc(dev, 0); 212 USB_ATTACH_SETUP; 213 printf("%s: %s\n", devname, devinfop); 214 usbd_devinfo_free(devinfop); 215 216 id = usbd_get_interface_descriptor(iface); 217 218 sc->sc_udev = dev; 219 sc->sc_iface = iface; 220 221 switch( uaa->vendor ) { 222 case USB_VENDOR_FTDI: 223 switch (uaa->product) { 224 case USB_PRODUCT_FTDI_SERIAL_8U100AX: 225 sc->sc_type = UFTDI_TYPE_SIO; 226 sc->sc_hdrlen = 1; 227 break; 228 default: /* Most uftdi devices are 8U232AM */ 229 sc->sc_type = UFTDI_TYPE_8U232AM; 230 sc->sc_hdrlen = 0; 231 } 232 break; 233 default: /* Most uftdi devices are 8U232AM */ 234 sc->sc_type = UFTDI_TYPE_8U232AM; 235 sc->sc_hdrlen = 0; 236 } 237 238 uca.bulkin = uca.bulkout = -1; 239 for (i = 0; i < id->bNumEndpoints; i++) { 240 int addr, dir, attr; 241 ed = usbd_interface2endpoint_descriptor(iface, i); 242 if (ed == NULL) { 243 printf("%s: could not read endpoint descriptor" 244 ": %s\n", devname, usbd_errstr(err)); 245 goto bad; 246 } 247 248 addr = ed->bEndpointAddress; 249 dir = UE_GET_DIR(ed->bEndpointAddress); 250 attr = ed->bmAttributes & UE_XFERTYPE; 251 if (dir == UE_DIR_IN && attr == UE_BULK) 252 uca.bulkin = addr; 253 else if (dir == UE_DIR_OUT && attr == UE_BULK) 254 uca.bulkout = addr; 255 else { 256 printf("%s: unexpected endpoint\n", devname); 257 goto bad; 258 } 259 } 260 if (uca.bulkin == -1) { 261 printf("%s: Could not find data bulk in\n", 262 USBDEVNAME(sc->sc_dev)); 263 goto bad; 264 } 265 if (uca.bulkout == -1) { 266 printf("%s: Could not find data bulk out\n", 267 USBDEVNAME(sc->sc_dev)); 268 goto bad; 269 } 270 271 uca.portno = FTDI_PIT_SIOA; 272 /* bulkin, bulkout set above */ 273 uca.ibufsize = UFTDIIBUFSIZE; 274 uca.obufsize = UFTDIOBUFSIZE - sc->sc_hdrlen; 275 uca.ibufsizepad = UFTDIIBUFSIZE; 276 uca.opkthdrlen = sc->sc_hdrlen; 277 uca.device = dev; 278 uca.iface = iface; 279 uca.methods = &uftdi_methods; 280 uca.arg = sc; 281 uca.info = NULL; 282 283 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 284 USBDEV(sc->sc_dev)); 285 286 DPRINTF(("uftdi: in=0x%x out=0x%x\n", uca.bulkin, uca.bulkout)); 287 sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca, 288 ucomprint, ucomsubmatch); 289 290 USB_ATTACH_SUCCESS_RETURN; 291 292 bad: 293 DPRINTF(("uftdi_attach: ATTACH ERROR\n")); 294 sc->sc_dying = 1; 295 USB_ATTACH_ERROR_RETURN; 296 } 297 298 int 299 uftdi_activate(device_ptr_t self, enum devact act) 300 { 301 struct uftdi_softc *sc = (struct uftdi_softc *)self; 302 int rv = 0; 303 304 switch (act) { 305 case DVACT_ACTIVATE: 306 return (EOPNOTSUPP); 307 308 case DVACT_DEACTIVATE: 309 if (sc->sc_subdev != NULL) 310 rv = config_deactivate(sc->sc_subdev); 311 sc->sc_dying = 1; 312 break; 313 } 314 return (rv); 315 } 316 317 int 318 uftdi_detach(device_ptr_t self, int flags) 319 { 320 struct uftdi_softc *sc = (struct uftdi_softc *)self; 321 322 DPRINTF(("uftdi_detach: sc=%p flags=%d\n", sc, flags)); 323 sc->sc_dying = 1; 324 if (sc->sc_subdev != NULL) { 325 config_detach(sc->sc_subdev, flags); 326 sc->sc_subdev = NULL; 327 } 328 329 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 330 USBDEV(sc->sc_dev)); 331 332 return (0); 333 } 334 335 Static int 336 uftdi_open(void *vsc, int portno) 337 { 338 struct uftdi_softc *sc = vsc; 339 usb_device_request_t req; 340 usbd_status err; 341 struct termios t; 342 343 DPRINTF(("uftdi_open: sc=%p\n", sc)); 344 345 if (sc->sc_dying) 346 return (EIO); 347 348 /* Perform a full reset on the device */ 349 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 350 req.bRequest = FTDI_SIO_RESET; 351 USETW(req.wValue, FTDI_SIO_RESET_SIO); 352 USETW(req.wIndex, portno); 353 USETW(req.wLength, 0); 354 err = usbd_do_request(sc->sc_udev, &req, NULL); 355 if (err) 356 return (EIO); 357 358 /* Set 9600 baud, 2 stop bits, no parity, 8 bits */ 359 t.c_ospeed = 9600; 360 t.c_cflag = CSTOPB | CS8; 361 (void)uftdi_param(sc, portno, &t); 362 363 /* Turn on RTS/CTS flow control */ 364 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 365 req.bRequest = FTDI_SIO_SET_FLOW_CTRL; 366 USETW(req.wValue, 0); 367 USETW2(req.wIndex, FTDI_SIO_RTS_CTS_HS, portno); 368 USETW(req.wLength, 0); 369 err = usbd_do_request(sc->sc_udev, &req, NULL); 370 if (err) 371 return (EIO); 372 373 return (0); 374 } 375 376 Static void 377 uftdi_read(void *vsc, int portno, u_char **ptr, u_int32_t *count) 378 { 379 struct uftdi_softc *sc = vsc; 380 u_char msr, lsr; 381 382 DPRINTFN(15,("uftdi_read: sc=%p, port=%d count=%d\n", sc, portno, 383 *count)); 384 385 msr = FTDI_GET_MSR(*ptr); 386 lsr = FTDI_GET_LSR(*ptr); 387 388 #ifdef UFTDI_DEBUG 389 if (*count != 2) 390 DPRINTFN(10,("uftdi_read: sc=%p, port=%d count=%d data[0]=" 391 "0x%02x\n", sc, portno, *count, (*ptr)[2])); 392 #endif 393 394 if (sc->sc_msr != msr || 395 (sc->sc_lsr & FTDI_LSR_MASK) != (lsr & FTDI_LSR_MASK)) { 396 DPRINTF(("uftdi_read: status change msr=0x%02x(0x%02x) " 397 "lsr=0x%02x(0x%02x)\n", msr, sc->sc_msr, 398 lsr, sc->sc_lsr)); 399 sc->sc_msr = msr; 400 sc->sc_lsr = lsr; 401 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 402 } 403 404 /* Pick up status and adjust data part. */ 405 *ptr += 2; 406 *count -= 2; 407 } 408 409 Static void 410 uftdi_write(void *vsc, int portno, u_char *to, u_char *from, u_int32_t *count) 411 { 412 struct uftdi_softc *sc = vsc; 413 414 DPRINTFN(10,("uftdi_write: sc=%p, port=%d count=%u data[0]=0x%02x\n", 415 vsc, portno, *count, from[0])); 416 417 /* Make length tag and copy data */ 418 if (sc->sc_hdrlen > 0) 419 *to = FTDI_OUT_TAG(*count, portno); 420 421 memcpy(to + sc->sc_hdrlen, from, *count); 422 *count += sc->sc_hdrlen; 423 } 424 425 Static void 426 uftdi_set(void *vsc, int portno, int reg, int onoff) 427 { 428 struct uftdi_softc *sc = vsc; 429 usb_device_request_t req; 430 int ctl; 431 432 DPRINTF(("uftdi_set: sc=%p, port=%d reg=%d onoff=%d\n", vsc, portno, 433 reg, onoff)); 434 435 switch (reg) { 436 case UCOM_SET_DTR: 437 ctl = onoff ? FTDI_SIO_SET_DTR_HIGH : FTDI_SIO_SET_DTR_LOW; 438 break; 439 case UCOM_SET_RTS: 440 ctl = onoff ? FTDI_SIO_SET_RTS_HIGH : FTDI_SIO_SET_RTS_LOW; 441 break; 442 case UCOM_SET_BREAK: 443 uftdi_break(sc, portno, onoff); 444 return; 445 default: 446 return; 447 } 448 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 449 req.bRequest = FTDI_SIO_MODEM_CTRL; 450 USETW(req.wValue, ctl); 451 USETW(req.wIndex, portno); 452 USETW(req.wLength, 0); 453 DPRINTFN(2,("uftdi_set: reqtype=0x%02x req=0x%02x value=0x%04x " 454 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 455 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 456 (void)usbd_do_request(sc->sc_udev, &req, NULL); 457 } 458 459 Static int 460 uftdi_param(void *vsc, int portno, struct termios *t) 461 { 462 struct uftdi_softc *sc = vsc; 463 usb_device_request_t req; 464 usbd_status err; 465 int rate, data, flow; 466 467 DPRINTF(("uftdi_param: sc=%p\n", sc)); 468 469 if (sc->sc_dying) 470 return (EIO); 471 472 switch (sc->sc_type) { 473 case UFTDI_TYPE_SIO: 474 switch (t->c_ospeed) { 475 case 300: rate = ftdi_sio_b300; break; 476 case 600: rate = ftdi_sio_b600; break; 477 case 1200: rate = ftdi_sio_b1200; break; 478 case 2400: rate = ftdi_sio_b2400; break; 479 case 4800: rate = ftdi_sio_b4800; break; 480 case 9600: rate = ftdi_sio_b9600; break; 481 case 19200: rate = ftdi_sio_b19200; break; 482 case 38400: rate = ftdi_sio_b38400; break; 483 case 57600: rate = ftdi_sio_b57600; break; 484 case 115200: rate = ftdi_sio_b115200; break; 485 default: 486 return (EINVAL); 487 } 488 break; 489 490 case UFTDI_TYPE_8U232AM: 491 switch(t->c_ospeed) { 492 case 300: rate = ftdi_8u232am_b300; break; 493 case 600: rate = ftdi_8u232am_b600; break; 494 case 1200: rate = ftdi_8u232am_b1200; break; 495 case 2400: rate = ftdi_8u232am_b2400; break; 496 case 4800: rate = ftdi_8u232am_b4800; break; 497 case 9600: rate = ftdi_8u232am_b9600; break; 498 case 19200: rate = ftdi_8u232am_b19200; break; 499 case 38400: rate = ftdi_8u232am_b38400; break; 500 case 57600: rate = ftdi_8u232am_b57600; break; 501 case 115200: rate = ftdi_8u232am_b115200; break; 502 case 230400: rate = ftdi_8u232am_b230400; break; 503 case 460800: rate = ftdi_8u232am_b460800; break; 504 case 921600: rate = ftdi_8u232am_b921600; break; 505 default: 506 return (EINVAL); 507 } 508 break; 509 510 default: 511 return (EINVAL); 512 } 513 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 514 req.bRequest = FTDI_SIO_SET_BAUD_RATE; 515 USETW(req.wValue, rate); 516 USETW(req.wIndex, portno); 517 USETW(req.wLength, 0); 518 DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x " 519 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 520 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 521 err = usbd_do_request(sc->sc_udev, &req, NULL); 522 if (err) 523 return (EIO); 524 525 if (ISSET(t->c_cflag, CSTOPB)) 526 data = FTDI_SIO_SET_DATA_STOP_BITS_2; 527 else 528 data = FTDI_SIO_SET_DATA_STOP_BITS_1; 529 if (ISSET(t->c_cflag, PARENB)) { 530 if (ISSET(t->c_cflag, PARODD)) 531 data |= FTDI_SIO_SET_DATA_PARITY_ODD; 532 else 533 data |= FTDI_SIO_SET_DATA_PARITY_EVEN; 534 } else 535 data |= FTDI_SIO_SET_DATA_PARITY_NONE; 536 switch (ISSET(t->c_cflag, CSIZE)) { 537 case CS5: 538 data |= FTDI_SIO_SET_DATA_BITS(5); 539 break; 540 case CS6: 541 data |= FTDI_SIO_SET_DATA_BITS(6); 542 break; 543 case CS7: 544 data |= FTDI_SIO_SET_DATA_BITS(7); 545 break; 546 case CS8: 547 data |= FTDI_SIO_SET_DATA_BITS(8); 548 break; 549 } 550 sc->last_lcr = data; 551 552 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 553 req.bRequest = FTDI_SIO_SET_DATA; 554 USETW(req.wValue, data); 555 USETW(req.wIndex, portno); 556 USETW(req.wLength, 0); 557 DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x " 558 "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest, 559 UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength))); 560 err = usbd_do_request(sc->sc_udev, &req, NULL); 561 if (err) 562 return (EIO); 563 564 if (ISSET(t->c_cflag, CRTSCTS)) { 565 flow = FTDI_SIO_RTS_CTS_HS; 566 USETW(req.wValue, 0); 567 } else if (ISSET(t->c_iflag, IXON|IXOFF)) { 568 flow = FTDI_SIO_XON_XOFF_HS; 569 USETW2(req.wValue, t->c_cc[VSTOP], t->c_cc[VSTART]); 570 } else { 571 flow = FTDI_SIO_DISABLE_FLOW_CTRL; 572 USETW(req.wValue, 0); 573 } 574 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 575 req.bRequest = FTDI_SIO_SET_FLOW_CTRL; 576 USETW2(req.wIndex, flow, portno); 577 USETW(req.wLength, 0); 578 err = usbd_do_request(sc->sc_udev, &req, NULL); 579 if (err) 580 return (EIO); 581 582 return (0); 583 } 584 585 void 586 uftdi_get_status(void *vsc, int portno, u_char *lsr, u_char *msr) 587 { 588 struct uftdi_softc *sc = vsc; 589 590 DPRINTF(("uftdi_status: msr=0x%02x lsr=0x%02x\n", 591 sc->sc_msr, sc->sc_lsr)); 592 593 if (msr != NULL) 594 *msr = sc->sc_msr; 595 if (lsr != NULL) 596 *lsr = sc->sc_lsr; 597 } 598 599 void 600 uftdi_break(void *vsc, int portno, int onoff) 601 { 602 struct uftdi_softc *sc = vsc; 603 usb_device_request_t req; 604 int data; 605 606 DPRINTF(("uftdi_break: sc=%p, port=%d onoff=%d\n", vsc, portno, 607 onoff)); 608 609 if (onoff) { 610 data = sc->last_lcr | FTDI_SIO_SET_BREAK; 611 } else { 612 data = sc->last_lcr; 613 } 614 615 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 616 req.bRequest = FTDI_SIO_SET_DATA; 617 USETW(req.wValue, data); 618 USETW(req.wIndex, portno); 619 USETW(req.wLength, 0); 620 (void)usbd_do_request(sc->sc_udev, &req, NULL); 621 } 622
Indexes created Fri Oct 03 02:09:57 GMT 2025