Add a USB comm driver.

Ported from NetBSD by:	akiyama

1 files changed, 810 insertions, 0 deletions

diff --git a/sys/dev/usb/uplcom.c b/sys/dev/usb/uplcom.c
new file mode 100644
index 0000000..8c7467a
--- /dev/null
+++ b/sys/dev/usb/uplcom.c
@@ -0,0 +1,810 @@
+/*	$NetBSD: uplcom.c,v 1.20 2001/07/31 12:33:11 ichiro Exp $	*/
+/*	$FreeBSD$	*/
+
+/*-
+ * Copyright (c) 2001-2002, Shunsuke Akiyama <akiyama@jp.FreeBSD.org>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Copyright (c) 2001 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Ichiro FUKUHARA (ichiro@ichiro.org).
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Simple datasheet
+ * http://www.prolific.com.tw/download/DataSheet/pl2303_ds11.PDF
+ * http://www.nisseisg.co.jp/jyouhou/_cp/@gif/2303.pdf
+ * 	(english)
+ *
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/bus.h>
+#include <sys/ioccom.h>
+#include <sys/fcntl.h>
+#include <sys/conf.h>
+#include <sys/tty.h>
+#include <sys/file.h>
+#if __FreeBSD_version >= 500014
+#include <sys/selinfo.h>
+#else
+#include <sys/select.h>
+#endif
+#include <sys/proc.h>
+#include <sys/vnode.h>
+#include <sys/poll.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbcdc.h>
+
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdi_util.h>
+#include <dev/usb/usbdevs.h>
+#include <dev/usb/usb_quirks.h>
+
+#include <dev/usb/ucomvar.h>
+
+#ifdef UPLCOM_DEBUG
+#include <sys/sysctl.h>
+
+static int	uplcomdebug = 1;
+
+SYSCTL_DECL(_debug_usb);
+SYSCTL_INT(_debug_usb, OID_AUTO, uplcom, CTLFLAG_RW,
+	   &uplcomdebug, 0, "uplcom debug level");
+
+#define DPRINTFN(n, x)	do { \
+				if (uplcomdebug > (n)) \
+					logprintf x; \
+			} while (0)
+#else
+#define DPRINTFN(n, x)
+#endif
+#define DPRINTF(x) DPRINTFN(0, x)
+
+#define UPLCOM_MODVER			1	/* module version */
+
+#define	UPLCOM_CONFIG_INDEX		0
+#define	UPLCOM_IFACE_INDEX		0
+#define	UPLCOM_SECOND_IFACE_INDEX	1
+
+#define UPLCOM_INTR_INTERVAL		100	/* ms */
+
+#define	UPLCOM_SET_REQUEST		0x01
+#define	UPLCOM_SET_CRTSCTS		0x41
+#define RSAQ_STATUS_DSR			0x02
+#define RSAQ_STATUS_DCD			0x01
+
+struct	uplcom_softc {
+	struct ucom_softc	sc_ucom;
+
+	int			sc_iface_number;	/* interface number */
+
+	usbd_interface_handle	sc_intr_iface;	/* interrupt interface */
+	int			sc_intr_number;	/* interrupt number */
+	usbd_pipe_handle	sc_intr_pipe;	/* interrupt pipe */
+	u_char			*sc_intr_buf;	/* interrupt buffer */
+	int			sc_isize;
+
+	usb_cdc_line_state_t	sc_line_state;	/* current line state */
+	u_char			sc_dtr;		/* current DTR state */
+	u_char			sc_rts;		/* current RTS state */
+	u_char			sc_status;
+
+	u_char			sc_lsr;		/* Local status register */
+	u_char			sc_msr;		/* uplcom status register */
+};
+
+/*
+ * These are the maximum number of bytes transferred per frame.
+ * The output buffer size cannot be increased due to the size encoding.
+ */
+#define UPLCOMIBUFSIZE 256
+#define UPLCOMOBUFSIZE 256
+
+Static	usbd_status uplcom_reset(struct uplcom_softc *);
+Static	usbd_status uplcom_set_line_coding(struct uplcom_softc *,
+					   usb_cdc_line_state_t *);
+Static	usbd_status uplcom_set_crtscts(struct uplcom_softc *);
+Static	void uplcom_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
+
+Static	void uplcom_set(void *, int, int, int);
+Static	void uplcom_dtr(struct uplcom_softc *, int);
+Static	void uplcom_rts(struct uplcom_softc *, int);
+Static	void uplcom_break(struct uplcom_softc *, int);
+Static	void uplcom_set_line_state(struct uplcom_softc *);
+Static	void uplcom_get_status(void *, int, u_char *, u_char *);
+#if TODO
+Static	int  uplcom_ioctl(void *, int, u_long, caddr_t, int, usb_proc_ptr);
+#endif
+Static	int  uplcom_param(void *, int, struct termios *);
+Static	int  uplcom_open(void *, int);
+Static	void uplcom_close(void *, int);
+
+struct ucom_callback uplcom_callback = {
+	uplcom_get_status,
+	uplcom_set,
+	uplcom_param,
+	NULL, /* uplcom_ioctl, TODO */
+	uplcom_open,
+	uplcom_close,
+	NULL,
+	NULL
+};
+
+static const struct uplcom_product {
+	uint16_t	vendor;
+	uint16_t	product;
+} uplcom_products [] = {
+	/* I/O DATA USB-RSAQ */
+	{ USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBRSAQ },
+	/* I/O DATA USB-RSAQ2 */
+	{ USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_RSAQ2 },
+	/* PLANEX USB-RS232 URS-03 */
+	{ USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC232A },
+	/* IOGEAR/ATEN UC-232A */
+	{ USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303 },
+	/* TDK USB-PHS Adapter UHA6400 */
+	{ USB_VENDOR_TDK, USB_PRODUCT_TDK_UHA6400 },
+	/* RATOC REX-USB60 */
+	{ USB_VENDOR_RATOC, USB_PRODUCT_RATOC_REXUSB60 },
+	{ 0, 0 }
+};
+
+Static device_probe_t uplcom_match;
+Static device_attach_t uplcom_attach;
+Static device_detach_t uplcom_detach;
+
+Static device_method_t uplcom_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe, uplcom_match),
+	DEVMETHOD(device_attach, uplcom_attach),
+	DEVMETHOD(device_detach, uplcom_detach),
+	{ 0, 0 }
+};
+
+Static driver_t uplcom_driver = {
+	"usio",
+	uplcom_methods,
+	sizeof (struct uplcom_softc)
+};
+
+DRIVER_MODULE(uplcom, uhub, uplcom_driver, ucom_devclass, usbd_driver_load, 0);
+MODULE_DEPEND(uplcom, ucom, UCOM_MINVER, UCOM_PREFVER, UCOM_MAXVER);
+MODULE_VERSION(uplcom, UPLCOM_MODVER);
+
+USB_MATCH(uplcom)
+{
+	USB_MATCH_START(uplcom, uaa);
+	int i;
+
+	if (uaa->iface != NULL)
+		return (UMATCH_NONE);
+
+	for (i = 0; uplcom_products[i].vendor != 0; i++) {
+		if (uplcom_products[i].vendor == uaa->vendor &&
+		    uplcom_products[i].product == uaa->product) {
+			return (UMATCH_VENDOR_PRODUCT);
+		}
+	}
+	return (UMATCH_NONE);
+}
+
+USB_ATTACH(uplcom)
+{
+	USB_ATTACH_START(uplcom, sc, uaa);
+	usbd_device_handle dev = uaa->device;
+	struct ucom_softc *ucom;
+	usb_config_descriptor_t *cdesc;
+	usb_interface_descriptor_t *id;
+	usb_endpoint_descriptor_t *ed;
+	char *devinfo;
+	const char *devname;
+	usbd_status err;
+	int i;
+
+	devinfo = malloc(1024, M_USBDEV, M_WAITOK);
+	ucom = &sc->sc_ucom;
+
+	bzero(sc, sizeof (struct uplcom_softc));
+
+	usbd_devinfo(dev, 0, devinfo);
+	/* USB_ATTACH_SETUP; */
+	ucom->sc_dev = self;
+	device_set_desc_copy(self, devinfo);
+	/* USB_ATTACH_SETUP; */
+
+	ucom->sc_udev = dev;
+	ucom->sc_iface = uaa->iface;
+
+	devname = USBDEVNAME(ucom->sc_dev);
+	printf("%s: %s\n", devname, devinfo);
+
+	DPRINTF(("uplcom attach: sc = %p\n", sc));
+
+	/* initialize endpoints */ 
+	ucom->sc_bulkin_no = ucom->sc_bulkout_no = -1;
+	sc->sc_intr_number = -1;
+	sc->sc_intr_pipe = NULL;
+
+	/* Move the device into the configured state. */
+	err = usbd_set_config_index(dev, UPLCOM_CONFIG_INDEX, 1);
+	if (err) {
+		printf("%s: failed to set configuration: %s\n",
+			devname, usbd_errstr(err));
+		ucom->sc_dying = 1;
+		goto error;
+	}
+
+	/* get the config descriptor */
+	cdesc = usbd_get_config_descriptor(ucom->sc_udev);
+
+	if (cdesc == NULL) {
+		printf("%s: failed to get configuration descriptor\n",
+			USBDEVNAME(ucom->sc_dev));
+		ucom->sc_dying = 1;
+		goto error;
+	}
+
+	/* get the (first/common) interface */
+	err = usbd_device2interface_handle(dev, UPLCOM_IFACE_INDEX, 
+					   &ucom->sc_iface);
+	if (err) {
+		printf("%s: failed to get interface: %s\n",
+			devname, usbd_errstr(err));
+		ucom->sc_dying = 1;
+		goto error;
+	}
+
+	/* Find the interrupt endpoints */
+
+	id = usbd_get_interface_descriptor(ucom->sc_iface);
+	sc->sc_iface_number = id->bInterfaceNumber;
+
+	for (i = 0; i < id->bNumEndpoints; i++) {
+		ed = usbd_interface2endpoint_descriptor(ucom->sc_iface, i);
+		if (ed == NULL) {
+			printf("%s: no endpoint descriptor for %d\n",
+				USBDEVNAME(ucom->sc_dev), i);
+			ucom->sc_dying = 1;
+			goto error;
+		}
+
+		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
+		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
+			sc->sc_intr_number = ed->bEndpointAddress;
+			sc->sc_isize = UGETW(ed->wMaxPacketSize);
+		} 
+	}
+
+	if (sc->sc_intr_number == -1) {
+		printf("%s: Could not find interrupt in\n",
+			USBDEVNAME(ucom->sc_dev));
+		ucom->sc_dying = 1;
+		goto error;
+	}
+
+	/* keep interface for interrupt */
+	sc->sc_intr_iface = ucom->sc_iface;
+
+	/*
+	 * USB-RSAQ1 has two interface
+	 *
+	 *  USB-RSAQ1       | USB-RSAQ2
+	 * -----------------+-----------------
+	 * Interface 0      |Interface 0
+	 *  Interrupt(0x81) | Interrupt(0x81)
+	 * -----------------+ BulkIN(0x02)
+	 * Interface 1	    | BulkOUT(0x83)
+	 *   BulkIN(0x02)   | 
+	 *   BulkOUT(0x83)  |
+	 */
+	if (cdesc->bNumInterface == 2) {
+		err = usbd_device2interface_handle(dev, 
+						   UPLCOM_SECOND_IFACE_INDEX,
+						   &ucom->sc_iface);
+		if (err) {
+			printf("%s: failed to get second interface: %s\n",
+				devname, usbd_errstr(err));
+			ucom->sc_dying = 1;
+			goto error;
+		}
+	} 
+
+	/* Find the bulk{in,out} endpoints */
+
+	id = usbd_get_interface_descriptor(ucom->sc_iface);
+	sc->sc_iface_number = id->bInterfaceNumber;
+
+	for (i = 0; i < id->bNumEndpoints; i++) {
+		ed = usbd_interface2endpoint_descriptor(ucom->sc_iface, i);
+		if (ed == NULL) {
+			printf("%s: no endpoint descriptor for %d\n",
+				USBDEVNAME(ucom->sc_dev), i);
+			ucom->sc_dying = 1;
+			goto error;
+		}
+
+		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
+		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
+			ucom->sc_bulkin_no = ed->bEndpointAddress;
+		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
+		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
+			ucom->sc_bulkout_no = ed->bEndpointAddress;
+		}
+	}
+
+	if (ucom->sc_bulkin_no == -1) {
+		printf("%s: Could not find data bulk in\n",
+			USBDEVNAME(ucom->sc_dev));
+		ucom->sc_dying = 1;
+		goto error;
+	}
+
+	if (ucom->sc_bulkout_no == -1) {
+		printf("%s: Could not find data bulk out\n",
+			USBDEVNAME(ucom->sc_dev));
+		ucom->sc_dying = 1;
+		goto error;
+	}
+
+	sc->sc_dtr = sc->sc_rts = -1;
+	ucom->sc_parent = sc;
+	ucom->sc_portno = UCOM_UNK_PORTNO;
+	/* bulkin, bulkout set above */
+	ucom->sc_ibufsize = UPLCOMIBUFSIZE;
+	ucom->sc_obufsize = UPLCOMOBUFSIZE;
+	ucom->sc_ibufsizepad = UPLCOMIBUFSIZE;
+	ucom->sc_opkthdrlen = 0;
+	ucom->sc_callback = &uplcom_callback;
+
+	err = uplcom_reset(sc);
+
+	if (err) {
+		printf("%s: reset failed: %s\n",
+		       USBDEVNAME(ucom->sc_dev), usbd_errstr(err));
+		ucom->sc_dying = 1;
+		goto error;
+	}
+
+	DPRINTF(("uplcom: in = 0x%x, out = 0x%x, intr = 0x%x\n",
+		 ucom->sc_bulkin_no, ucom->sc_bulkout_no, sc->sc_intr_number));
+
+	ucom_attach(&sc->sc_ucom);
+
+	free(devinfo, M_USBDEV);
+	USB_ATTACH_SUCCESS_RETURN;
+
+error:
+	free(devinfo, M_USBDEV);
+	USB_ATTACH_ERROR_RETURN;
+}
+
+USB_DETACH(uplcom)
+{
+	USB_DETACH_START(uplcom, sc);
+	int rv = 0;
+
+	DPRINTF(("uplcom_detach: sc = %p\n", sc));
+
+	if (sc->sc_intr_pipe != NULL) {
+		usbd_abort_pipe(sc->sc_intr_pipe);
+		usbd_close_pipe(sc->sc_intr_pipe);
+		free(sc->sc_intr_buf, M_USBDEV);
+		sc->sc_intr_pipe = NULL;
+	}
+
+	sc->sc_ucom.sc_dying = 1;
+
+	rv = ucom_detach(&sc->sc_ucom);
+
+	return (rv);
+}
+
+Static usbd_status
+uplcom_reset(struct uplcom_softc *sc)
+{
+	usb_device_request_t req;
+	usbd_status err;
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = UPLCOM_SET_REQUEST;
+	USETW(req.wValue, 0);
+	USETW(req.wIndex, sc->sc_iface_number);
+	USETW(req.wLength, 0); 
+
+	err = usbd_do_request(sc->sc_ucom.sc_udev, &req, 0); 
+	if (err) {
+		printf("%s: uplcom_reset: %s\n",
+		       USBDEVNAME(sc->sc_ucom.sc_dev), usbd_errstr(err));
+		return (EIO);
+	}
+
+	return (0);
+}
+
+Static void
+uplcom_set_line_state(struct uplcom_softc *sc)
+{
+	usb_device_request_t req;
+	int ls;
+	usbd_status err;
+
+	ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) |
+		(sc->sc_rts ? UCDC_LINE_RTS : 0);
+	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
+	req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
+	USETW(req.wValue, ls);
+	USETW(req.wIndex, sc->sc_iface_number);
+	USETW(req.wLength, 0);
+
+	err = usbd_do_request(sc->sc_ucom.sc_udev, &req, 0);
+	if (err)
+		printf("%s: uplcom_set_line_status: %s\n",
+		       USBDEVNAME(sc->sc_ucom.sc_dev), usbd_errstr(err));
+}
+
+Static void
+uplcom_set(void *addr, int portno, int reg, int onoff)
+{
+	struct uplcom_softc *sc = addr;
+
+	switch (reg) {
+	case UCOM_SET_DTR:
+		uplcom_dtr(sc, onoff);
+		break;
+	case UCOM_SET_RTS:
+		uplcom_rts(sc, onoff);
+		break;
+	case UCOM_SET_BREAK:
+		uplcom_break(sc, onoff);
+		break;
+	default:
+		break;
+	}
+}
+
+Static void
+uplcom_dtr(struct uplcom_softc *sc, int onoff)
+{
+	DPRINTF(("uplcom_dtr: onoff = %d\n", onoff));
+
+	if (sc->sc_dtr == onoff)
+		return;
+	sc->sc_dtr = onoff;
+
+	uplcom_set_line_state(sc);
+}
+
+Static void
+uplcom_rts(struct uplcom_softc *sc, int onoff)
+{
+	DPRINTF(("uplcom_rts: onoff = %d\n", onoff));
+
+	if (sc->sc_rts == onoff)
+		return;
+	sc->sc_rts = onoff;
+
+	uplcom_set_line_state(sc);
+}
+
+Static void
+uplcom_break(struct uplcom_softc *sc, int onoff)
+{
+	usb_device_request_t req;
+	usbd_status err;
+
+	DPRINTF(("uplcom_break: onoff = %d\n", onoff));
+
+	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
+	req.bRequest = UCDC_SEND_BREAK;
+	USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
+	USETW(req.wIndex, sc->sc_iface_number);
+	USETW(req.wLength, 0);
+
+	err = usbd_do_request(sc->sc_ucom.sc_udev, &req, 0);
+	if (err)
+		printf("%s: uplcom_break: %s\n",
+		       USBDEVNAME(sc->sc_ucom.sc_dev), usbd_errstr(err));
+}
+
+Static usbd_status
+uplcom_set_crtscts(struct uplcom_softc *sc)
+{
+	usb_device_request_t req;
+	usbd_status err;
+
+	DPRINTF(("uplcom_set_crtscts: on\n"));
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = UPLCOM_SET_REQUEST;
+	USETW(req.wValue, 0);
+	USETW(req.wIndex, UPLCOM_SET_CRTSCTS);
+	USETW(req.wLength, 0);
+
+	err = usbd_do_request(sc->sc_ucom.sc_udev, &req, 0);
+	if (err) {
+		printf("%s: uplcom_set_crtscts: %s\n",
+		       USBDEVNAME(sc->sc_ucom.sc_dev), usbd_errstr(err));
+		return (err);
+	}
+
+	return (USBD_NORMAL_COMPLETION);
+}
+
+Static usbd_status
+uplcom_set_line_coding(struct uplcom_softc *sc, usb_cdc_line_state_t *state)
+{
+	usb_device_request_t req;
+	usbd_status err;
+
+	DPRINTF((
+"uplcom_set_line_coding: rate = %d, fmt = %d, parity = %d bits = %d\n",
+		 UGETDW(state->dwDTERate), state->bCharFormat,
+		 state->bParityType, state->bDataBits));
+
+	if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) {
+		DPRINTF(("uplcom_set_line_coding: already set\n"));
+		return (USBD_NORMAL_COMPLETION);
+	}
+
+	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
+	req.bRequest = UCDC_SET_LINE_CODING;
+	USETW(req.wValue, 0);
+	USETW(req.wIndex, sc->sc_iface_number);
+	USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
+
+	err = usbd_do_request(sc->sc_ucom.sc_udev, &req, state);
+	if (err) {
+		printf("%s: uplcom_set_line_coding: %s\n",
+		       USBDEVNAME(sc->sc_ucom.sc_dev), usbd_errstr(err));
+		return (err);
+	}
+
+	sc->sc_line_state = *state;
+
+	return (USBD_NORMAL_COMPLETION);
+}
+
+Static int
+uplcom_param(void *addr, int portno, struct termios *t)
+{
+	struct uplcom_softc *sc = addr;
+	usbd_status err;
+	usb_cdc_line_state_t ls;
+
+	DPRINTF(("uplcom_param: sc = %p\n", sc));
+
+	USETDW(ls.dwDTERate, t->c_ospeed);
+	if (ISSET(t->c_cflag, CSTOPB))
+		ls.bCharFormat = UCDC_STOP_BIT_2;
+	else
+		ls.bCharFormat = UCDC_STOP_BIT_1;
+	if (ISSET(t->c_cflag, PARENB)) {
+		if (ISSET(t->c_cflag, PARODD))
+			ls.bParityType = UCDC_PARITY_ODD;
+		else
+			ls.bParityType = UCDC_PARITY_EVEN;
+	} else
+		ls.bParityType = UCDC_PARITY_NONE;
+	switch (ISSET(t->c_cflag, CSIZE)) {
+	case CS5:
+		ls.bDataBits = 5;
+		break;
+	case CS6:
+		ls.bDataBits = 6;
+		break;
+	case CS7:
+		ls.bDataBits = 7;
+		break;
+	case CS8:
+		ls.bDataBits = 8;
+		break;
+	}
+
+	err = uplcom_set_line_coding(sc, &ls);
+	if (err)
+		return (EIO);
+
+	if (ISSET(t->c_cflag, CRTSCTS)) {
+		err = uplcom_set_crtscts(sc);
+		if (err)
+			return (EIO);
+	}
+
+	return (0);
+}
+
+Static int
+uplcom_open(void *addr, int portno)
+{
+	struct uplcom_softc *sc = addr;
+	int err;
+	
+	if (sc->sc_ucom.sc_dying)
+		return (EIO);
+
+	DPRINTF(("uplcom_open: sc = %p\n", sc));
+
+	if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) {
+		sc->sc_status = 0; /* clear status bit */
+		sc->sc_intr_buf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK);
+		err = usbd_open_pipe_intr(sc->sc_intr_iface,
+					  sc->sc_intr_number,
+					  USBD_SHORT_XFER_OK,
+					  &sc->sc_intr_pipe,
+					  sc,
+					  sc->sc_intr_buf,
+					  sc->sc_isize,
+					  uplcom_intr,
+					  UPLCOM_INTR_INTERVAL);
+		if (err) {
+			printf("%s: cannot open interrupt pipe (addr %d)\n",
+			       USBDEVNAME(sc->sc_ucom.sc_dev),
+			       sc->sc_intr_number);
+			return (EIO);
+		}
+	}
+
+	return (0);
+}
+
+Static void
+uplcom_close(void *addr, int portno) 
+{
+	struct uplcom_softc *sc = addr;
+	int err;
+
+	if (sc->sc_ucom.sc_dying)
+		return;
+
+	DPRINTF(("uplcom_close: close\n"));
+
+	if (sc->sc_intr_pipe != NULL) {
+		err = usbd_abort_pipe(sc->sc_intr_pipe);
+		if (err)
+			printf("%s: abort interrupt pipe failed: %s\n",
+			       USBDEVNAME(sc->sc_ucom.sc_dev),
+			       usbd_errstr(err));
+		err = usbd_close_pipe(sc->sc_intr_pipe);
+		if (err)
+			printf("%s: close interrupt pipe failed: %s\n",
+			       USBDEVNAME(sc->sc_ucom.sc_dev),
+			       usbd_errstr(err));
+		free(sc->sc_intr_buf, M_USBDEV);
+		sc->sc_intr_pipe = NULL;
+	}
+}
+
+Static void
+uplcom_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
+{
+	struct uplcom_softc *sc = priv;
+	u_char *buf = sc->sc_intr_buf;
+	u_char pstatus;
+
+	if (sc->sc_ucom.sc_dying)
+		return;
+
+	if (status != USBD_NORMAL_COMPLETION) {
+		if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
+			return;
+
+		DPRINTF(("%s: uplcom_intr: abnormal status: %s\n",
+			USBDEVNAME(sc->sc_ucom.sc_dev),
+			usbd_errstr(status)));
+		usbd_clear_endpoint_stall_async(sc->sc_intr_pipe);
+		return;
+	}
+
+	DPRINTF(("%s: uplcom status = %02x\n",
+		 USBDEVNAME(sc->sc_ucom.sc_dev), buf[8]));
+
+	sc->sc_lsr = sc->sc_msr = 0;
+	pstatus = buf[8];
+	if (ISSET(pstatus, RSAQ_STATUS_DSR))
+		sc->sc_msr |= UMSR_DSR;
+	if (ISSET(pstatus, RSAQ_STATUS_DCD))
+		sc->sc_msr |= UMSR_DCD;
+	ucom_status_change(&sc->sc_ucom);
+}
+
+Static void
+uplcom_get_status(void *addr, int portno, u_char *lsr, u_char *msr)
+{
+	struct uplcom_softc *sc = addr;
+
+	DPRINTF(("uplcom_get_status:\n"));
+
+	if (lsr != NULL)
+		*lsr = sc->sc_lsr;
+	if (msr != NULL)
+		*msr = sc->sc_msr;
+}
+
+#if TODO
+Static int
+uplcom_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag,
+	     usb_proc_ptr p)
+{
+	struct uplcom_softc *sc = addr;
+	int error = 0;
+
+	if (sc->sc_ucom.sc_dying)
+		return (EIO);
+
+	DPRINTF(("uplcom_ioctl: cmd = 0x%08lx\n", cmd));
+
+	switch (cmd) {
+	case TIOCNOTTY:
+	case TIOCMGET:
+	case TIOCMSET:
+	case USB_GET_CM_OVER_DATA:
+	case USB_SET_CM_OVER_DATA:
+		break;
+
+	default:
+		DPRINTF(("uplcom_ioctl: unknown\n"));
+		error = ENOTTY;
+		break;
+	}
+
+	return (error);
+}
+#endif