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uplcom.c revision 1.41
      1 /*	$NetBSD: uplcom.c,v 1.41 2004/10/23 14:20:50 augustss 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  * General information: http://www.prolific.com.tw/fr_pl2303.htm
     40  * http://www.hitachi-hitec.com/jyouhou/prolific/2303.pdf
     41  */
     42 
     43 #include <sys/cdefs.h>
     44 __KERNEL_RCSID(0, "$NetBSD: uplcom.c,v 1.41 2004/10/23 14:20:50 augustss Exp $");
     45 
     46 #include <sys/param.h>
     47 #include <sys/systm.h>
     48 #include <sys/kernel.h>
     49 #include <sys/malloc.h>
     50 #include <sys/ioctl.h>
     51 #include <sys/conf.h>
     52 #include <sys/tty.h>
     53 #include <sys/file.h>
     54 #include <sys/select.h>
     55 #include <sys/proc.h>
     56 #include <sys/device.h>
     57 #include <sys/poll.h>
     58 
     59 #include <dev/usb/usb.h>
     60 #include <dev/usb/usbcdc.h>
     61 
     62 #include <dev/usb/usbdi.h>
     63 #include <dev/usb/usbdi_util.h>
     64 #include <dev/usb/usbdevs.h>
     65 #include <dev/usb/usb_quirks.h>
     66 
     67 #include <dev/usb/usbdevs.h>
     68 #include <dev/usb/ucomvar.h>
     69 
     70 #ifdef UPLCOM_DEBUG
     71 #define DPRINTFN(n, x)  if (uplcomdebug > (n)) logprintf x
     72 int	uplcomdebug = 0;
     73 #else
     74 #define DPRINTFN(n, x)
     75 #endif
     76 #define DPRINTF(x) DPRINTFN(0, x)
     77 
     78 #define	UPLCOM_CONFIG_INDEX	0
     79 #define	UPLCOM_IFACE_INDEX	0
     80 #define	UPLCOM_SECOND_IFACE_INDEX	1
     81 
     82 #define	UPLCOM_SET_REQUEST	0x01
     83 #define	UPLCOM_SET_CRTSCTS	0x41
     84 #define RSAQ_STATUS_DSR		0x02
     85 #define RSAQ_STATUS_DCD		0x01
     86 
     87 #define	UPLCOM_FLOW_OUT_CTS	0x0001
     88 #define	UPLCOM_FLOW_OUT_DSR	0x0002
     89 #define	UPLCOM_FLOW_IN_DSR	0x0004
     90 #define	UPLCOM_FLOW_IN_DTR	0x0008
     91 #define	UPLCOM_FLOW_IN_RTS	0x0010
     92 #define	UPLCOM_FLOW_OUT_RTS	0x0020
     93 #define	UPLCOM_FLOW_OUT_XON	0x0080
     94 #define	UPLCOM_FLOW_IN_XON	0x0100
     95 
     96 struct	uplcom_softc {
     97 	USBBASEDEVICE		sc_dev;		/* base device */
     98 	usbd_device_handle	sc_udev;	/* USB device */
     99 	usbd_interface_handle	sc_iface;	/* interface */
    100 	int			sc_iface_number;	/* interface number */
    101 
    102 	usbd_interface_handle	sc_intr_iface;	/* interrupt interface */
    103 	int			sc_intr_number;	/* interrupt number */
    104 	usbd_pipe_handle	sc_intr_pipe;	/* interrupt pipe */
    105 	u_char			*sc_intr_buf;	/* interrupt buffer */
    106 	int			sc_isize;
    107 
    108 	usb_cdc_line_state_t	sc_line_state;	/* current line state */
    109 	int			sc_dtr;		/* current DTR state */
    110 	int			sc_rts;		/* current RTS state */
    111 
    112 	device_ptr_t		sc_subdev;	/* ucom device */
    113 
    114 	u_char			sc_dying;	/* disconnecting */
    115 
    116 	u_char			sc_lsr;		/* Local status register */
    117 	u_char			sc_msr;		/* uplcom status register */
    118 };
    119 
    120 /*
    121  * These are the maximum number of bytes transferred per frame.
    122  * The output buffer size cannot be increased due to the size encoding.
    123  */
    124 #define UPLCOMIBUFSIZE 256
    125 #define UPLCOMOBUFSIZE 256
    126 
    127 Static	usbd_status uplcom_reset(struct uplcom_softc *);
    128 Static	usbd_status uplcom_set_line_coding(struct uplcom_softc *sc,
    129 					   usb_cdc_line_state_t *state);
    130 Static	usbd_status uplcom_set_crtscts(struct uplcom_softc *);
    131 Static	void uplcom_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
    132 
    133 Static	void uplcom_set(void *, int, int, int);
    134 Static	void uplcom_dtr(struct uplcom_softc *, int);
    135 Static	void uplcom_rts(struct uplcom_softc *, int);
    136 Static	void uplcom_break(struct uplcom_softc *, int);
    137 Static	void uplcom_set_line_state(struct uplcom_softc *);
    138 Static	void uplcom_get_status(void *, int portno, u_char *lsr, u_char *msr);
    139 #if TODO
    140 Static	int  uplcom_ioctl(void *, int, u_long, caddr_t, int, usb_proc_ptr );
    141 #endif
    142 Static	int  uplcom_param(void *, int, struct termios *);
    143 Static	int  uplcom_open(void *, int);
    144 Static	void uplcom_close(void *, int);
    145 
    146 struct	ucom_methods uplcom_methods = {
    147 	uplcom_get_status,
    148 	uplcom_set,
    149 	uplcom_param,
    150 	NULL, /* uplcom_ioctl, TODO */
    151 	uplcom_open,
    152 	uplcom_close,
    153 	NULL,
    154 	NULL,
    155 };
    156 
    157 static const struct usb_devno uplcom_devs[] = {
    158 	/* I/O DATA USB-RSAQ2 */
    159 	{ USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_RSAQ2 },
    160 	/* I/O DATA USB-RSAQ */
    161 	{ USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBRSAQ },
    162 	/* PLANEX USB-RS232 URS-03 */
    163 	{ USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC232A },
    164 	/* IOGEAR/ATEN UC-232A */
    165 	{ USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303 },
    166 	/* IOGEAR/ATENTRIPPLITE */
    167 	{ USB_VENDOR_TRIPPLITE, USB_PRODUCT_TRIPPLITE_U209 },
    168 	/* ELECOM UC-SGT */
    169 	{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_UCSGT },
    170 	/* RATOC REX-USB60 */
    171 	{ USB_VENDOR_RATOC, USB_PRODUCT_RATOC_REXUSB60 },
    172 	/* TDK USB-PHS Adapter UHA6400 */
    173 	{ USB_VENDOR_TDK, USB_PRODUCT_TDK_UHA6400 },
    174 	/* TDK USB-PDC Adapter UPA9664 */
    175 	{ USB_VENDOR_TDK, USB_PRODUCT_TDK_UPA9664 },
    176 	/* Sony Ericsson USB Cable */
    177 	{ USB_VENDOR_SUSTEEN, USB_PRODUCT_SUSTEEN_DCU10 },
    178 	/* SOURCENEXT KeikaiDenwa 8 */
    179 	{ USB_VENDOR_SOURCENEXT, USB_PRODUCT_SOURCENEXT_KEIKAI8 },
    180 	/* SOURCENEXT KeikaiDenwa 8 with charger */
    181 	{ USB_VENDOR_SOURCENEXT, USB_PRODUCT_SOURCENEXT_KEIKAI8_CHG },
    182 	/* HAL Corporation Crossam2+USB */
    183 	{ USB_VENDOR_HAL, USB_PRODUCT_HAL_IMR001 },
    184 	/* Sitecom USB to serial cable */
    185 	{ USB_VENDOR_SITECOM, USB_PRODUCT_SITECOM_CN104 },
    186 	/* Pharos USB GPS - Microsoft version */
    187 	{ USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303X },
    188 };
    189 #define uplcom_lookup(v, p) usb_lookup(uplcom_devs, v, p)
    190 
    191 
    192 USB_DECLARE_DRIVER(uplcom);
    193 
    194 USB_MATCH(uplcom)
    195 {
    196 	USB_MATCH_START(uplcom, uaa);
    197 
    198 	if (uaa->iface != NULL)
    199 		return (UMATCH_NONE);
    200 
    201 	return (uplcom_lookup(uaa->vendor, uaa->product) != NULL ?
    202 		UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
    203 }
    204 
    205 USB_ATTACH(uplcom)
    206 {
    207 	USB_ATTACH_START(uplcom, sc, uaa);
    208 	usbd_device_handle dev = uaa->device;
    209 	usb_config_descriptor_t *cdesc;
    210 	usb_interface_descriptor_t *id;
    211 	usb_endpoint_descriptor_t *ed;
    212 
    213 	char devinfo[1024];
    214 	char *devname = USBDEVNAME(sc->sc_dev);
    215 	usbd_status err;
    216 	int i;
    217 	struct ucom_attach_args uca;
    218 
    219         usbd_devinfo(dev, 0, devinfo, sizeof(devinfo));
    220         USB_ATTACH_SETUP;
    221         printf("%s: %s\n", devname, devinfo);
    222 
    223         sc->sc_udev = dev;
    224 
    225 	DPRINTF(("\n\nuplcom attach: sc=%p\n", sc));
    226 
    227 	/* initialize endpoints */
    228 	uca.bulkin = uca.bulkout = -1;
    229 	sc->sc_intr_number = -1;
    230 	sc->sc_intr_pipe = NULL;
    231 
    232 	/* Move the device into the configured state. */
    233 	err = usbd_set_config_index(dev, UPLCOM_CONFIG_INDEX, 1);
    234 	if (err) {
    235 		printf("\n%s: failed to set configuration, err=%s\n",
    236 			devname, usbd_errstr(err));
    237 		sc->sc_dying = 1;
    238 		USB_ATTACH_ERROR_RETURN;
    239 	}
    240 
    241 	/* get the config descriptor */
    242 	cdesc = usbd_get_config_descriptor(sc->sc_udev);
    243 
    244 	if (cdesc == NULL) {
    245 		printf("%s: failed to get configuration descriptor\n",
    246 			USBDEVNAME(sc->sc_dev));
    247 		sc->sc_dying = 1;
    248 		USB_ATTACH_ERROR_RETURN;
    249 	}
    250 
    251 	/* get the (first/common) interface */
    252 	err = usbd_device2interface_handle(dev, UPLCOM_IFACE_INDEX,
    253 							&sc->sc_iface);
    254 	if (err) {
    255 		printf("\n%s: failed to get interface, err=%s\n",
    256 			devname, usbd_errstr(err));
    257 		sc->sc_dying = 1;
    258 		USB_ATTACH_ERROR_RETURN;
    259 	}
    260 
    261 	/* Find the interrupt endpoints */
    262 
    263 	id = usbd_get_interface_descriptor(sc->sc_iface);
    264 	sc->sc_iface_number = id->bInterfaceNumber;
    265 
    266 	for (i = 0; i < id->bNumEndpoints; i++) {
    267 		ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
    268 		if (ed == NULL) {
    269 			printf("%s: no endpoint descriptor for %d\n",
    270 				USBDEVNAME(sc->sc_dev), i);
    271 			sc->sc_dying = 1;
    272 			USB_ATTACH_ERROR_RETURN;
    273 		}
    274 
    275 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
    276 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
    277 			sc->sc_intr_number = ed->bEndpointAddress;
    278 			sc->sc_isize = UGETW(ed->wMaxPacketSize);
    279 		}
    280 	}
    281 
    282 	if (sc->sc_intr_number== -1) {
    283 		printf("%s: Could not find interrupt in\n",
    284 			USBDEVNAME(sc->sc_dev));
    285 		sc->sc_dying = 1;
    286 		USB_ATTACH_ERROR_RETURN;
    287 	}
    288 
    289 	/* keep interface for interrupt */
    290 	sc->sc_intr_iface = sc->sc_iface;
    291 
    292 	/*
    293 	 * USB-RSAQ1 has two interface
    294 	 *
    295 	 *  USB-RSAQ1       | USB-RSAQ2
    296  	 * -----------------+-----------------
    297 	 * Interface 0      |Interface 0
    298 	 *  Interrupt(0x81) | Interrupt(0x81)
    299 	 * -----------------+ BulkIN(0x02)
    300 	 * Interface 1	    | BulkOUT(0x83)
    301 	 *   BulkIN(0x02)   |
    302 	 *   BulkOUT(0x83)  |
    303 	 */
    304 	if (cdesc->bNumInterface == 2) {
    305 		err = usbd_device2interface_handle(dev,
    306 				UPLCOM_SECOND_IFACE_INDEX, &sc->sc_iface);
    307 		if (err) {
    308 			printf("\n%s: failed to get second interface, err=%s\n",
    309 							devname, usbd_errstr(err));
    310 			sc->sc_dying = 1;
    311 			USB_ATTACH_ERROR_RETURN;
    312 		}
    313 	}
    314 
    315 	/* Find the bulk{in,out} endpoints */
    316 
    317 	id = usbd_get_interface_descriptor(sc->sc_iface);
    318 	sc->sc_iface_number = id->bInterfaceNumber;
    319 
    320 	for (i = 0; i < id->bNumEndpoints; i++) {
    321 		ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
    322 		if (ed == NULL) {
    323 			printf("%s: no endpoint descriptor for %d\n",
    324 				USBDEVNAME(sc->sc_dev), i);
    325 			sc->sc_dying = 1;
    326 			USB_ATTACH_ERROR_RETURN;
    327 		}
    328 
    329 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
    330 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
    331 			uca.bulkin = ed->bEndpointAddress;
    332 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
    333 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
    334 			uca.bulkout = ed->bEndpointAddress;
    335 		}
    336 	}
    337 
    338 	if (uca.bulkin == -1) {
    339 		printf("%s: Could not find data bulk in\n",
    340 			USBDEVNAME(sc->sc_dev));
    341 		sc->sc_dying = 1;
    342 		USB_ATTACH_ERROR_RETURN;
    343 	}
    344 
    345 	if (uca.bulkout == -1) {
    346 		printf("%s: Could not find data bulk out\n",
    347 			USBDEVNAME(sc->sc_dev));
    348 		sc->sc_dying = 1;
    349 		USB_ATTACH_ERROR_RETURN;
    350 	}
    351 
    352 	sc->sc_dtr = sc->sc_rts = -1;
    353 	uca.portno = UCOM_UNK_PORTNO;
    354 	/* bulkin, bulkout set above */
    355 	uca.ibufsize = UPLCOMIBUFSIZE;
    356 	uca.obufsize = UPLCOMOBUFSIZE;
    357 	uca.ibufsizepad = UPLCOMIBUFSIZE;
    358 	uca.opkthdrlen = 0;
    359 	uca.device = dev;
    360 	uca.iface = sc->sc_iface;
    361 	uca.methods = &uplcom_methods;
    362 	uca.arg = sc;
    363 	uca.info = NULL;
    364 
    365 	err = uplcom_reset(sc);
    366 
    367 	if (err) {
    368 		printf("%s: reset failed, %s\n", USBDEVNAME(sc->sc_dev),
    369 			usbd_errstr(err));
    370 		sc->sc_dying = 1;
    371 		USB_ATTACH_ERROR_RETURN;
    372 	}
    373 
    374 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
    375 			   USBDEV(sc->sc_dev));
    376 
    377 	DPRINTF(("uplcom: in=0x%x out=0x%x intr=0x%x\n",
    378 			uca.bulkin, uca.bulkout, sc->sc_intr_number ));
    379 	sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca,
    380 					    ucomprint, ucomsubmatch);
    381 
    382 	USB_ATTACH_SUCCESS_RETURN;
    383 }
    384 
    385 USB_DETACH(uplcom)
    386 {
    387 	USB_DETACH_START(uplcom, sc);
    388 	int rv = 0;
    389 
    390 	DPRINTF(("uplcom_detach: sc=%p flags=%d\n", sc, flags));
    391 
    392         if (sc->sc_intr_pipe != NULL) {
    393                 usbd_abort_pipe(sc->sc_intr_pipe);
    394                 usbd_close_pipe(sc->sc_intr_pipe);
    395 		free(sc->sc_intr_buf, M_USBDEV);
    396                 sc->sc_intr_pipe = NULL;
    397         }
    398 
    399 	sc->sc_dying = 1;
    400 	if (sc->sc_subdev != NULL) {
    401 		rv = config_detach(sc->sc_subdev, flags);
    402 		sc->sc_subdev = NULL;
    403 	}
    404 
    405 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
    406 			   USBDEV(sc->sc_dev));
    407 
    408 	return (rv);
    409 }
    410 
    411 int
    412 uplcom_activate(device_ptr_t self, enum devact act)
    413 {
    414 	struct uplcom_softc *sc = (struct uplcom_softc *)self;
    415 	int rv = 0;
    416 
    417 	switch (act) {
    418 	case DVACT_ACTIVATE:
    419 		return (EOPNOTSUPP);
    420 
    421 	case DVACT_DEACTIVATE:
    422 		if (sc->sc_subdev != NULL)
    423 			rv = config_deactivate(sc->sc_subdev);
    424 		sc->sc_dying = 1;
    425 		break;
    426 	}
    427 	return (rv);
    428 }
    429 
    430 usbd_status
    431 uplcom_reset(struct uplcom_softc *sc)
    432 {
    433         usb_device_request_t req;
    434 	usbd_status err;
    435 
    436         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    437         req.bRequest = UPLCOM_SET_REQUEST;
    438         USETW(req.wValue, 0);
    439         USETW(req.wIndex, sc->sc_iface_number);
    440         USETW(req.wLength, 0);
    441 
    442         err = usbd_do_request(sc->sc_udev, &req, 0);
    443 	if (err)
    444 		return (EIO);
    445 
    446 	return (0);
    447 }
    448 
    449 void
    450 uplcom_set_line_state(struct uplcom_softc *sc)
    451 {
    452 	usb_device_request_t req;
    453 	int ls;
    454 
    455 	/* make sure we have initialized state for sc_dtr and sc_rts */
    456 	if (sc->sc_dtr == -1)
    457 		sc->sc_dtr = 0;
    458 	if (sc->sc_rts == -1)
    459 		sc->sc_rts = 0;
    460 
    461 	ls = (sc->sc_dtr ? UPLCOM_FLOW_OUT_DSR : 0) |
    462 		(sc->sc_rts ? UPLCOM_FLOW_OUT_CTS : 0);
    463 
    464 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
    465 	req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
    466 	USETW(req.wValue, ls);
    467 	USETW(req.wIndex, sc->sc_iface_number);
    468 	USETW(req.wLength, 0);
    469 
    470 	(void)usbd_do_request(sc->sc_udev, &req, 0);
    471 
    472 }
    473 
    474 void
    475 uplcom_set(void *addr, int portno, int reg, int onoff)
    476 {
    477 	struct uplcom_softc *sc = addr;
    478 
    479 	switch (reg) {
    480 	case UCOM_SET_DTR:
    481 		uplcom_dtr(sc, onoff);
    482 		break;
    483 	case UCOM_SET_RTS:
    484 		uplcom_rts(sc, onoff);
    485 		break;
    486 	case UCOM_SET_BREAK:
    487 		uplcom_break(sc, onoff);
    488 		break;
    489 	default:
    490 		break;
    491 	}
    492 }
    493 
    494 void
    495 uplcom_dtr(struct uplcom_softc *sc, int onoff)
    496 {
    497 
    498 	DPRINTF(("uplcom_dtr: onoff=%d\n", onoff));
    499 
    500 	if (sc->sc_dtr != -1 && !sc->sc_dtr == !onoff)
    501 		return;
    502 
    503 	sc->sc_dtr = !!onoff;
    504 
    505 	uplcom_set_line_state(sc);
    506 }
    507 
    508 void
    509 uplcom_rts(struct uplcom_softc *sc, int onoff)
    510 {
    511 	DPRINTF(("uplcom_rts: onoff=%d\n", onoff));
    512 
    513 	if (sc->sc_rts != -1 && !sc->sc_rts == !onoff)
    514 		return;
    515 
    516 	sc->sc_rts = !!onoff;
    517 
    518 	uplcom_set_line_state(sc);
    519 }
    520 
    521 void
    522 uplcom_break(struct uplcom_softc *sc, int onoff)
    523 {
    524 	usb_device_request_t req;
    525 
    526 	DPRINTF(("uplcom_break: onoff=%d\n", onoff));
    527 
    528 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
    529 	req.bRequest = UCDC_SEND_BREAK;
    530 	USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
    531 	USETW(req.wIndex, sc->sc_iface_number);
    532 	USETW(req.wLength, 0);
    533 
    534 	(void)usbd_do_request(sc->sc_udev, &req, 0);
    535 }
    536 
    537 usbd_status
    538 uplcom_set_crtscts(struct uplcom_softc *sc)
    539 {
    540 	usb_device_request_t req;
    541 	usbd_status err;
    542 
    543 	DPRINTF(("uplcom_set_crtscts: on\n"));
    544 
    545 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    546 	req.bRequest = UPLCOM_SET_REQUEST;
    547 	USETW(req.wValue, 0);
    548 	USETW(req.wIndex, UPLCOM_SET_CRTSCTS);
    549 	USETW(req.wLength, 0);
    550 
    551 	err = usbd_do_request(sc->sc_udev, &req, 0);
    552 	if (err) {
    553 		DPRINTF(("uplcom_set_crtscts: failed, err=%s\n",
    554 			usbd_errstr(err)));
    555 		return (err);
    556 	}
    557 
    558 	return (USBD_NORMAL_COMPLETION);
    559 }
    560 
    561 usbd_status
    562 uplcom_set_line_coding(struct uplcom_softc *sc, usb_cdc_line_state_t *state)
    563 {
    564 	usb_device_request_t req;
    565 	usbd_status err;
    566 
    567 	DPRINTF(("uplcom_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n",
    568 		UGETDW(state->dwDTERate), state->bCharFormat,
    569 		state->bParityType, state->bDataBits));
    570 
    571 	if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) {
    572 		DPRINTF(("uplcom_set_line_coding: already set\n"));
    573 		return (USBD_NORMAL_COMPLETION);
    574 	}
    575 
    576 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
    577 	req.bRequest = UCDC_SET_LINE_CODING;
    578 	USETW(req.wValue, 0);
    579 	USETW(req.wIndex, sc->sc_iface_number);
    580 	USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
    581 
    582 	err = usbd_do_request(sc->sc_udev, &req, state);
    583 	if (err) {
    584 		DPRINTF(("uplcom_set_line_coding: failed, err=%s\n",
    585 			usbd_errstr(err)));
    586 		return (err);
    587 	}
    588 
    589 	sc->sc_line_state = *state;
    590 
    591 	return (USBD_NORMAL_COMPLETION);
    592 }
    593 
    594 int
    595 uplcom_param(void *addr, int portno, struct termios *t)
    596 {
    597 	struct uplcom_softc *sc = addr;
    598 	usbd_status err;
    599 	usb_cdc_line_state_t ls;
    600 
    601 	DPRINTF(("uplcom_param: sc=%p\n", sc));
    602 
    603 	USETDW(ls.dwDTERate, t->c_ospeed);
    604 	if (ISSET(t->c_cflag, CSTOPB))
    605 		ls.bCharFormat = UCDC_STOP_BIT_2;
    606 	else
    607 		ls.bCharFormat = UCDC_STOP_BIT_1;
    608 	if (ISSET(t->c_cflag, PARENB)) {
    609 		if (ISSET(t->c_cflag, PARODD))
    610 			ls.bParityType = UCDC_PARITY_ODD;
    611 		else
    612 			ls.bParityType = UCDC_PARITY_EVEN;
    613 	} else
    614 		ls.bParityType = UCDC_PARITY_NONE;
    615 	switch (ISSET(t->c_cflag, CSIZE)) {
    616 	case CS5:
    617 		ls.bDataBits = 5;
    618 		break;
    619 	case CS6:
    620 		ls.bDataBits = 6;
    621 		break;
    622 	case CS7:
    623 		ls.bDataBits = 7;
    624 		break;
    625 	case CS8:
    626 		ls.bDataBits = 8;
    627 		break;
    628 	}
    629 
    630 	err = uplcom_set_line_coding(sc, &ls);
    631 	if (err) {
    632 		DPRINTF(("uplcom_param: err=%s\n", usbd_errstr(err)));
    633 		return (EIO);
    634 	}
    635 
    636 	if (ISSET(t->c_cflag, CRTSCTS))
    637 		uplcom_set_crtscts(sc);
    638 
    639 	if (sc->sc_rts == -1 || sc->sc_dtr == -1)
    640 		uplcom_set_line_state(sc);
    641 
    642 	if (err) {
    643 		DPRINTF(("uplcom_param: err=%s\n", usbd_errstr(err)));
    644 		return (EIO);
    645 	}
    646 
    647 	return (0);
    648 }
    649 
    650 int
    651 uplcom_open(void *addr, int portno)
    652 {
    653 	struct uplcom_softc *sc = addr;
    654 	int err;
    655 
    656 	if (sc->sc_dying)
    657 		return (EIO);
    658 
    659 	DPRINTF(("uplcom_open: sc=%p\n", sc));
    660 
    661 	if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) {
    662 		sc->sc_intr_buf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK);
    663 		err = usbd_open_pipe_intr(sc->sc_intr_iface, sc->sc_intr_number,
    664 			USBD_SHORT_XFER_OK, &sc->sc_intr_pipe, sc,
    665 			sc->sc_intr_buf, sc->sc_isize,
    666 			uplcom_intr, USBD_DEFAULT_INTERVAL);
    667 		if (err) {
    668 			DPRINTF(("%s: cannot open interrupt pipe (addr %d)\n",
    669 				USBDEVNAME(sc->sc_dev), sc->sc_intr_number));
    670 					return (EIO);
    671 		}
    672 	}
    673 
    674 	return (0);
    675 }
    676 
    677 void
    678 uplcom_close(void *addr, int portno)
    679 {
    680 	struct uplcom_softc *sc = addr;
    681 	int err;
    682 
    683 	if (sc->sc_dying)
    684 		return;
    685 
    686 	DPRINTF(("uplcom_close: close\n"));
    687 
    688 	if (sc->sc_intr_pipe != NULL) {
    689 		err = usbd_abort_pipe(sc->sc_intr_pipe);
    690 		if (err)
    691 			printf("%s: abort interrupt pipe failed: %s\n",
    692 				USBDEVNAME(sc->sc_dev), usbd_errstr(err));
    693 		err = usbd_close_pipe(sc->sc_intr_pipe);
    694 		if (err)
    695 			printf("%s: close interrupt pipe failed: %s\n",
    696 				USBDEVNAME(sc->sc_dev), usbd_errstr(err));
    697 		free(sc->sc_intr_buf, M_USBDEV);
    698 		sc->sc_intr_pipe = NULL;
    699 	}
    700 }
    701 
    702 void
    703 uplcom_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
    704 {
    705 	struct uplcom_softc *sc = priv;
    706 	u_char *buf = sc->sc_intr_buf;
    707 	u_char pstatus;
    708 
    709 	if (sc->sc_dying)
    710 		return;
    711 
    712 	if (status != USBD_NORMAL_COMPLETION) {
    713 		if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
    714 			return;
    715 
    716 		DPRINTF(("%s: abnormal status: %s\n", USBDEVNAME(sc->sc_dev),
    717 			usbd_errstr(status)));
    718 		usbd_clear_endpoint_stall_async(sc->sc_intr_pipe);
    719 		return;
    720 	}
    721 
    722 	DPRINTF(("%s: uplcom status = %02x\n", USBDEVNAME(sc->sc_dev), buf[8]));
    723 
    724 	sc->sc_lsr = sc->sc_msr = 0;
    725 	pstatus = buf[8];
    726 	if (ISSET(pstatus, RSAQ_STATUS_DSR))
    727 		sc->sc_msr |= UMSR_DSR;
    728 	if (ISSET(pstatus, RSAQ_STATUS_DCD))
    729 		sc->sc_msr |= UMSR_DCD;
    730 	ucom_status_change((struct ucom_softc *) sc->sc_subdev);
    731 }
    732 
    733 void
    734 uplcom_get_status(void *addr, int portno, u_char *lsr, u_char *msr)
    735 {
    736 	struct uplcom_softc *sc = addr;
    737 
    738 	DPRINTF(("uplcom_get_status:\n"));
    739 
    740 	if (lsr != NULL)
    741 		*lsr = sc->sc_lsr;
    742 	if (msr != NULL)
    743 		*msr = sc->sc_msr;
    744 }
    745 
    746 #if TODO
    747 int
    748 uplcom_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag,
    749 	     usb_proc_ptr p)
    750 {
    751 	struct uplcom_softc *sc = addr;
    752 	int error = 0;
    753 
    754 	if (sc->sc_dying)
    755 		return (EIO);
    756 
    757 	DPRINTF(("uplcom_ioctl: cmd=0x%08lx\n", cmd));
    758 
    759 	switch (cmd) {
    760 	case TIOCNOTTY:
    761 	case TIOCMGET:
    762 	case TIOCMSET:
    763 	case USB_GET_CM_OVER_DATA:
    764 	case USB_SET_CM_OVER_DATA:
    765 		break;
    766 
    767 	default:
    768 		DPRINTF(("uplcom_ioctl: unknown\n"));
    769 		error = ENOTTY;
    770 		break;
    771 	}
    772 
    773 	return (error);
    774 }
    775 #endif
    776