umct.c revision 1.3
1 /* $NetBSD: umct.c,v 1.3 2001/11/13 06:24:56 lukem Exp $ */ 2 /* 3 * Copyright (c) 2001 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Ichiro FUKUHARA (ichiro (at) ichiro.org). 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the NetBSD 20 * Foundation, Inc. and its contributors. 21 * 4. Neither the name of The NetBSD Foundation nor the names of its 22 * contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * This driver is for the device MCT USB-RS232 Interfact Controller. 40 * http://www.mct.com.tw/p_u232.html 41 * http://www.dlink.com/products/usb/dsbs25 42 * 43 */ 44 45 #include <sys/cdefs.h> 46 __KERNEL_RCSID(0, "$NetBSD: umct.c,v 1.3 2001/11/13 06:24:56 lukem Exp $"); 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/kernel.h> 51 #include <sys/malloc.h> 52 #include <sys/ioctl.h> 53 #include <sys/conf.h> 54 #include <sys/tty.h> 55 #include <sys/file.h> 56 #include <sys/select.h> 57 #include <sys/proc.h> 58 #include <sys/vnode.h> 59 #include <sys/device.h> 60 #include <sys/poll.h> 61 62 #include <dev/usb/usb.h> 63 #include <dev/usb/usbcdc.h> 64 65 #include <dev/usb/usbdi.h> 66 #include <dev/usb/usbdi_util.h> 67 #include <dev/usb/usbdevs.h> 68 #include <dev/usb/usb_quirks.h> 69 70 #include <dev/usb/usbdevs.h> 71 #include <dev/usb/ucomvar.h> 72 73 #include <dev/usb/umct.h> 74 75 #ifdef UMCT_DEBUG 76 #define DPRINTFN(n, x) if (umctdebug > (n)) logprintf x 77 int umctdebug = 0; 78 #else 79 #define DPRINTFN(n, x) 80 #endif 81 #define DPRINTF(x) DPRINTFN(0, x) 82 83 #define UMCT_CONFIG_INDEX 0 84 #define UMCT_IFACE_INDEX 0 85 86 struct umct_softc { 87 USBBASEDEVICE sc_dev; /* base device */ 88 usbd_device_handle sc_udev; /* USB device */ 89 usbd_interface_handle sc_iface; /* interface */ 90 int sc_iface_number; /* interface number */ 91 92 int sc_intr_number; /* interrupt number */ 93 usbd_pipe_handle sc_intr_pipe; /* interrupt pipe */ 94 u_char *sc_intr_buf; /* interrupt buffer */ 95 int sc_isize; 96 97 usb_cdc_line_state_t sc_line_state; /* current line state */ 98 u_char sc_dtr; /* current DTR state */ 99 u_char sc_rts; /* current RTS state */ 100 u_char sc_break; /* set break */ 101 102 u_char sc_status; 103 104 device_ptr_t sc_subdev; /* ucom device */ 105 106 u_char sc_dying; /* disconnecting */ 107 108 u_char sc_lsr; /* Local status register */ 109 u_char sc_msr; /* umct status register */ 110 }; 111 112 /* 113 * These are the maximum number of bytes transferred per frame. 114 * The output buffer size cannot be increased due to the size encoding. 115 */ 116 #define UMCTIBUFSIZE 256 117 #define UMCTOBUFSIZE 256 118 119 Static void umct_init(struct umct_softc *); 120 Static void umct_set_baudrate(struct umct_softc *, void *); 121 Static void umct_set_lcr(struct umct_softc *, void *); 122 Static void umct_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 123 124 Static void umct_set(void *, int, int, int); 125 Static void umct_dtr(struct umct_softc *, int); 126 Static void umct_rts(struct umct_softc *, int); 127 Static void umct_break(struct umct_softc *, int); 128 Static void umct_set_line_state(struct umct_softc *); 129 Static void umct_get_status(void *, int portno, u_char *lsr, u_char *msr); 130 Static int umct_param(void *, int, struct termios *); 131 Static int umct_open(void *, int); 132 Static void umct_close(void *, int); 133 134 struct ucom_methods umct_methods = { 135 umct_get_status, 136 umct_set, 137 umct_param, 138 NULL, 139 umct_open, 140 umct_close, 141 NULL, 142 NULL, 143 }; 144 145 static const struct umct_product { 146 uint16_t vendor; 147 uint16_t product; 148 } umct_products [] = { 149 /* MCT USB-232 Interface Products */ 150 { USB_VENDOR_MCT, USB_PRODUCT_MCT_USB232 }, 151 /* Sitecom USB-232 Products */ 152 { USB_VENDOR_MCT, USB_PRODUCT_MCT_SITECOM_USB232 }, 153 /* D-Link DU-H3SP USB BAY Hub Products */ 154 { USB_VENDOR_MCT, USB_PRODUCT_MCT_DU_H3SP_USB232 }, 155 156 { 0, 0 } 157 }; 158 159 USB_DECLARE_DRIVER(umct); 160 161 USB_MATCH(umct) 162 { 163 USB_MATCH_START(umct, uaa); 164 int i; 165 166 if (uaa->iface != NULL) 167 return (UMATCH_NONE); 168 169 for (i = 0; umct_products[i].vendor != 0; i++) { 170 if (umct_products[i].vendor == uaa->vendor && 171 umct_products[i].product == uaa->product) { 172 return (UMATCH_VENDOR_PRODUCT); 173 } 174 } 175 return (UMATCH_NONE); 176 } 177 178 USB_ATTACH(umct) 179 { 180 USB_ATTACH_START(umct, sc, uaa); 181 usbd_device_handle dev = uaa->device; 182 usb_config_descriptor_t *cdesc; 183 usb_interface_descriptor_t *id; 184 usb_endpoint_descriptor_t *ed; 185 186 char devinfo[1024]; 187 char *devname = USBDEVNAME(sc->sc_dev); 188 usbd_status err; 189 int i,found; 190 struct ucom_attach_args uca; 191 192 usbd_devinfo(dev, 0, devinfo); 193 USB_ATTACH_SETUP; 194 printf("%s: %s\n", devname, devinfo); 195 196 sc->sc_udev = dev; 197 198 DPRINTF(("\n\numct attach: sc=%p\n", sc)); 199 200 /* initialize endpoints */ 201 uca.bulkin = uca.bulkout = -1; 202 sc->sc_intr_number = -1; 203 sc->sc_intr_pipe = NULL; 204 205 /* Move the device into the configured state. */ 206 err = usbd_set_config_index(dev, UMCT_CONFIG_INDEX, 1); 207 if (err) { 208 printf("\n%s: failed to set configuration, err=%s\n", 209 devname, usbd_errstr(err)); 210 sc->sc_dying = 1; 211 USB_ATTACH_ERROR_RETURN; 212 } 213 214 /* get the config descriptor */ 215 cdesc = usbd_get_config_descriptor(sc->sc_udev); 216 217 if (cdesc == NULL) { 218 printf("%s: failed to get configuration descriptor\n", 219 USBDEVNAME(sc->sc_dev)); 220 sc->sc_dying = 1; 221 USB_ATTACH_ERROR_RETURN; 222 } 223 224 /* get the interface */ 225 err = usbd_device2interface_handle(dev, UMCT_IFACE_INDEX, 226 &sc->sc_iface); 227 if (err) { 228 printf("\n%s: failed to get interface, err=%s\n", 229 devname, usbd_errstr(err)); 230 sc->sc_dying = 1; 231 USB_ATTACH_ERROR_RETURN; 232 } 233 234 /* Find the bulk{in,out} and interrupt endpoints */ 235 236 id = usbd_get_interface_descriptor(sc->sc_iface); 237 sc->sc_iface_number = id->bInterfaceNumber; 238 found = 0; 239 240 for (i = 0; i < id->bNumEndpoints; i++) { 241 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 242 if (ed == NULL) { 243 printf("%s: no endpoint descriptor for %d\n", 244 USBDEVNAME(sc->sc_dev), i); 245 sc->sc_dying = 1; 246 USB_ATTACH_ERROR_RETURN; 247 } 248 249 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 250 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT && 251 found == 0) { 252 uca.bulkin = ed->bEndpointAddress; 253 found = 1; 254 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 255 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 256 uca.bulkout = ed->bEndpointAddress; 257 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 258 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 259 sc->sc_intr_number = ed->bEndpointAddress; 260 sc->sc_isize = UGETW(ed->wMaxPacketSize); 261 } 262 } 263 264 if (uca.bulkin == -1) { 265 printf("%s: Could not find data bulk in\n", 266 USBDEVNAME(sc->sc_dev)); 267 sc->sc_dying = 1; 268 USB_ATTACH_ERROR_RETURN; 269 } 270 271 if (uca.bulkout == -1) { 272 printf("%s: Could not find data bulk out\n", 273 USBDEVNAME(sc->sc_dev)); 274 sc->sc_dying = 1; 275 USB_ATTACH_ERROR_RETURN; 276 } 277 278 if (sc->sc_intr_number== -1) { 279 printf("%s: Could not find interrupt in\n", 280 USBDEVNAME(sc->sc_dev)); 281 sc->sc_dying = 1; 282 USB_ATTACH_ERROR_RETURN; 283 } 284 285 sc->sc_dtr = sc->sc_rts = 0; 286 uca.portno = UCOM_UNK_PORTNO; 287 /* bulkin, bulkout set above */ 288 uca.ibufsize = UMCTIBUFSIZE; 289 uca.obufsize = UMCTOBUFSIZE; 290 uca.ibufsizepad = UMCTIBUFSIZE; 291 uca.opkthdrlen = 0; 292 uca.device = dev; 293 uca.iface = sc->sc_iface; 294 uca.methods = &umct_methods; 295 uca.arg = sc; 296 uca.info = NULL; 297 298 umct_init(sc); 299 300 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 301 USBDEV(sc->sc_dev)); 302 303 DPRINTF(("umct: in=0x%x out=0x%x intr=0x%x\n", 304 uca.bulkin, uca.bulkout, sc->sc_intr_number )); 305 sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch); 306 307 USB_ATTACH_SUCCESS_RETURN; 308 } 309 310 USB_DETACH(umct) 311 { 312 USB_DETACH_START(umct, sc); 313 int rv = 0; 314 315 DPRINTF(("umct_detach: sc=%p flags=%d\n", sc, flags)); 316 317 if (sc->sc_intr_pipe != NULL) { 318 usbd_abort_pipe(sc->sc_intr_pipe); 319 usbd_close_pipe(sc->sc_intr_pipe); 320 free(sc->sc_intr_buf, M_USBDEV); 321 sc->sc_intr_pipe = NULL; 322 } 323 324 sc->sc_dying = 1; 325 if (sc->sc_subdev != NULL) { 326 rv = 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 (rv); 334 } 335 336 int 337 umct_activate(device_ptr_t self, enum devact act) 338 { 339 struct umct_softc *sc = (struct umct_softc *)self; 340 int rv = 0; 341 342 switch (act) { 343 case DVACT_ACTIVATE: 344 return (EOPNOTSUPP); 345 break; 346 347 case DVACT_DEACTIVATE: 348 if (sc->sc_subdev != NULL) 349 rv = config_deactivate(sc->sc_subdev); 350 sc->sc_dying = 1; 351 break; 352 } 353 return (rv); 354 } 355 356 void 357 umct_set_line_state(struct umct_softc *sc) 358 { 359 usb_device_request_t req; 360 int ls = MCR_NONE; 361 362 ls = (sc->sc_dtr ? MCR_DTR : 0) | 363 (sc->sc_rts ? MCR_RTS : 0); 364 365 DPRINTF(("umct_set_line_state: DTR=%d,RTS=%d,ls=%02x\n", 366 sc->sc_dtr, sc->sc_rts, ls)); 367 368 req.bmRequestType = UMCT_SET_REQUEST; 369 req.bRequest = REQ_SET_MCR; 370 USETW(req.wValue, 0); 371 USETW(req.wIndex, sc->sc_iface_number); 372 USETW(req.wLength, LENGTH_SET_MCR); 373 374 (void)usbd_do_request(sc->sc_udev, &req, &ls); 375 } 376 377 void 378 umct_set(void *addr, int portno, int reg, int onoff) 379 { 380 struct umct_softc *sc = addr; 381 382 switch (reg) { 383 case UCOM_SET_DTR: 384 umct_dtr(sc, onoff); 385 break; 386 case UCOM_SET_RTS: 387 umct_rts(sc, onoff); 388 break; 389 case UCOM_SET_BREAK: 390 umct_break(sc, onoff); 391 break; 392 default: 393 break; 394 } 395 } 396 397 void 398 umct_dtr(struct umct_softc *sc, int onoff) 399 { 400 401 DPRINTF(("umct_dtr: onoff=%d\n", onoff)); 402 403 if (sc->sc_dtr == onoff) 404 return; 405 sc->sc_dtr = onoff; 406 407 umct_set_line_state(sc); 408 } 409 410 void 411 umct_rts(struct umct_softc *sc, int onoff) 412 { 413 DPRINTF(("umct_rts: onoff=%d\n", onoff)); 414 415 if (sc->sc_rts == onoff) 416 return; 417 sc->sc_rts = onoff; 418 419 umct_set_line_state(sc); 420 } 421 422 void 423 umct_break(struct umct_softc *sc, int onoff) 424 { 425 u_char data; 426 427 DPRINTF(("umct_break: onoff=%d\n", onoff)); 428 429 data = onoff ? LCR_SET_BREAK : 0; 430 431 umct_set_lcr(sc, &data); 432 } 433 434 void 435 umct_set_lcr(struct umct_softc *sc, void *data) 436 { 437 usb_device_request_t req; 438 439 req.bmRequestType = UMCT_SET_REQUEST; 440 req.bRequest = REQ_SET_LCR; 441 USETW(req.wValue, 0); 442 USETW(req.wIndex, sc->sc_iface_number); 443 USETW(req.wLength, LENGTH_SET_LCR); 444 445 (void)usbd_do_request(sc->sc_udev, &req, data); 446 } 447 448 void 449 umct_set_baudrate(struct umct_softc *sc, void *rate) 450 { 451 usb_device_request_t req; 452 453 req.bmRequestType = UMCT_SET_REQUEST; 454 req.bRequest = REQ_SET_BAUD_RATE; 455 USETW(req.wValue, 0); 456 USETW(req.wIndex, sc->sc_iface_number); 457 USETW(req.wLength, LENGTH_BAUD_RATE); 458 459 (void)usbd_do_request(sc->sc_udev, &req, rate); 460 } 461 462 void 463 umct_init(struct umct_softc *sc) 464 { 465 int brate, data; 466 467 brate = UMCT_BAUD_RATE(9600); 468 data |= LCR_DATA_BITS_8 | LCR_PARITY_NONE | 469 LCR_STOP_BITS_1; 470 471 umct_set_baudrate(sc, &brate); 472 umct_set_lcr(sc, &data); 473 } 474 475 int 476 umct_param(void *addr, int portno, struct termios *t) 477 { 478 struct umct_softc *sc = addr; 479 int divisor = 0; 480 u_char data = NULL; 481 482 DPRINTF(("umct_param: sc=%p\n", sc)); 483 484 divisor = UMCT_BAUD_RATE(t->c_ospeed); 485 DPRINTF(("umct_param: BAUDRATE=%d\n", t->c_ospeed)); 486 487 if (ISSET(t->c_cflag, CSTOPB)) 488 data |= LCR_STOP_BITS_2; 489 else 490 data |= LCR_STOP_BITS_1; 491 if (ISSET(t->c_cflag, PARENB)) { 492 if (ISSET(t->c_cflag, PARODD)) 493 data |= LCR_PARITY_ODD; 494 else 495 data |= LCR_PARITY_EVEN; 496 } else 497 data |= LCR_PARITY_NONE; 498 switch (ISSET(t->c_cflag, CSIZE)) { 499 case CS5: 500 data |= LCR_DATA_BITS_5; 501 break; 502 case CS6: 503 data |= LCR_DATA_BITS_6; 504 break; 505 case CS7: 506 data |= LCR_DATA_BITS_7; 507 break; 508 case CS8: 509 data |= LCR_DATA_BITS_8; 510 break; 511 } 512 513 umct_set_baudrate(sc, &divisor); 514 515 umct_set_lcr(sc, &data); 516 517 return (0); 518 } 519 520 int 521 umct_open(void *addr, int portno) 522 { 523 struct umct_softc *sc = addr; 524 int err, lcr_data; 525 526 if (sc->sc_dying) 527 return (EIO); 528 529 DPRINTF(("umct_open: sc=%p\n", sc)); 530 531 /* initialize LCR */ 532 lcr_data |= LCR_DATA_BITS_8 | LCR_PARITY_NONE | 533 LCR_STOP_BITS_1; 534 umct_set_lcr(sc, &lcr_data); 535 536 if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) { 537 sc->sc_status = 0; /* clear status bit */ 538 sc->sc_intr_buf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); 539 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_intr_number, 540 USBD_SHORT_XFER_OK, &sc->sc_intr_pipe, sc, 541 sc->sc_intr_buf, sc->sc_isize, 542 umct_intr, USBD_DEFAULT_INTERVAL); 543 if (err) { 544 DPRINTF(("%s: cannot open interrupt pipe (addr %d)\n", 545 USBDEVNAME(sc->sc_dev), sc->sc_intr_number)); 546 return (EIO); 547 } 548 } 549 550 return (0); 551 } 552 553 void 554 umct_close(void *addr, int portno) 555 { 556 struct umct_softc *sc = addr; 557 int err; 558 559 if (sc->sc_dying) 560 return; 561 562 DPRINTF(("umct_close: close\n")); 563 564 if (sc->sc_intr_pipe != NULL) { 565 err = usbd_abort_pipe(sc->sc_intr_pipe); 566 if (err) 567 printf("%s: abort interrupt pipe failed: %s\n", 568 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 569 err = usbd_close_pipe(sc->sc_intr_pipe); 570 if (err) 571 printf("%s: close interrupt pipe failed: %s\n", 572 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 573 free(sc->sc_intr_buf, M_USBDEV); 574 sc->sc_intr_pipe = NULL; 575 } 576 } 577 578 void 579 umct_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 580 { 581 struct umct_softc *sc = priv; 582 u_char *buf = sc->sc_intr_buf; 583 u_char mstatus, lstatus; 584 585 if (sc->sc_dying) 586 return; 587 588 if (status != USBD_NORMAL_COMPLETION) { 589 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 590 return; 591 592 DPRINTF(("%s: abnormal status: %s\n", USBDEVNAME(sc->sc_dev), 593 usbd_errstr(status))); 594 usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); 595 return; 596 } 597 598 DPRINTF(("%s: umct status = MSR:%02x, LSR:%02x\n", 599 USBDEVNAME(sc->sc_dev), buf[0],buf[1])); 600 601 sc->sc_lsr = sc->sc_msr = 0; 602 mstatus = buf[0]; 603 lstatus = buf[1]; 604 if (ISSET(mstatus, MSR_DSR)) 605 sc->sc_msr |= UMSR_DSR; 606 if (ISSET(mstatus, MSR_DCD)) 607 sc->sc_msr |= UMSR_DCD; 608 ucom_status_change((struct ucom_softc *)sc->sc_subdev); 609 } 610 611 void 612 umct_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 613 { 614 struct umct_softc *sc = addr; 615 616 DPRINTF(("umct_get_status:\n")); 617 618 if (lsr != NULL) 619 *lsr = sc->sc_lsr; 620 if (msr != NULL) 621 *msr = sc->sc_msr; 622 } 623
Indexes created Fri Sep 26 20:09:58 GMT 2025