Add the uftdi ucom driver which supports the following adapters:

	Inland UAS111
	QVS USC-1000
	HP USB-Serial adapter shipped with some HP laptops

Submitted by:	takawata
MFC After:	7 days

7 files changed, 1052 insertions, 0 deletions

diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile
index 879c85c..8ca1682 100644
--- a/share/man/man4/Makefile
+++ b/share/man/man4/Makefile
@@ -184,6 +184,7 @@ MAN=	aac.4 \
 	ucom.4 \
 	udbp.4 \
 	udp.4 \
+	uftdi.4 \
 	ugen.4 \
 	uhci.4 \
 	uhid.4 \
diff --git a/share/man/man4/uftdi.4 b/share/man/man4/uftdi.4
new file mode 100644
index 0000000..c93889d
--- /dev/null
+++ b/share/man/man4/uftdi.4
@@ -0,0 +1,80 @@
+.\" $NetBSD: uftdi.4,v 1.5 2002/02/07 03:15:08 ross Exp $
+.\"
+.\" Copyright (c) 2000 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Lennart Augustsson.
+.\"
+.\" 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd April 13, 2000
+.Dt UFTDI 4
+.Os
+.Sh NAME
+.Nm uftdi
+.Nd USB support for serial adapters based on the FT8U100AX and FT8U232AM
+.Sh SYNOPSIS
+.Cd "uftdi* at uhub?"
+.Cd "ucom*  at uftdi?"
+.Sh HARDWARE
+The
+.Nm
+driver supports the following adapters:
+.Pp
+.Bl -item -offset indent -compact
+.It
+Inland UAS111
+.It
+QVS USC-1000
+.It
+HP USB-Serial adapter shipped with some HP laptops
+.El
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for various serial adapters based on the FTDI
+FT8U100AX and FT8U232AM chips.
+.Pp
+The device is accessed through the
+.Xr ucom 4
+driver which makes it behave like a
+.Xr tty 4 .
+.Sh SEE ALSO
+.Xr tty 4 ,
+.Xr ucom 4 ,
+.Xr usb 4
+.Sh HISTORY
+The
+.Nm
+driver
+appeared in
+.Nx 1.5 .
diff --git a/sys/conf/files b/sys/conf/files
index fb0c890..28f246b 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -642,6 +642,7 @@ dev/usb/ohci.c		optional ohci
 dev/usb/ucom.c		optional ucom
 dev/usb/udbp.c		optional udbp
 dev/usb/ufm.c		optional ufm
+dev/usb/uftdi.c		optional uftdi ucom
 dev/usb/ugen.c		optional ugen
 dev/usb/uhci.c		optional uhci
 dev/usb/uhid.c		optional uhid
diff --git a/sys/dev/usb/uftdi.c b/sys/dev/usb/uftdi.c
new file mode 100644
index 0000000..c7179d4
--- /dev/null
+++ b/sys/dev/usb/uftdi.c
@@ -0,0 +1,611 @@
+/*	$NetBSD: uftdi.c,v 1.12 2002/07/18 14:44:10 scw Exp $	*/
+/*	$FreeBSD$	*/
+
+/*
+ * Copyright (c) 2000 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Lennart Augustsson (lennart@augustsson.net).
+ *
+ * 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.
+ */
+
+/*
+ * FTDI FT8U100AX serial adapter driver
+ */
+
+/*
+ * XXX This driver will not support multiple serial ports.
+ * XXX The ucom layer needs to be extended first.
+ */
+
+#include <sys/cdefs.h>
+
+#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 <dev/usb/usb.h>
+#include <dev/usb/usbhid.h>
+
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdi_util.h>
+#include <dev/usb/usbdevs.h>
+
+#include <dev/usb/ucomvar.h>
+
+#include <dev/usb/uftdireg.h>
+
+#ifdef UFTDI_DEBUG
+#define DPRINTF(x)	if (uftdidebug) printf x
+#define DPRINTFN(n,x)	if (uftdidebug>(n)) printf x
+int uftdidebug = 0;
+#else
+#define DPRINTF(x)
+#define DPRINTFN(n,x)
+#endif
+
+#define UFTDI_CONFIG_INDEX	0
+#define UFTDI_IFACE_INDEX	0
+
+
+/*
+ * These are the maximum number of bytes transferred per frame.
+ * The output buffer size cannot be increased due to the size encoding.
+ */
+#define UFTDIIBUFSIZE 64
+#define UFTDIOBUFSIZE 64
+
+struct uftdi_softc {
+	struct ucom_softc	sc_ucom;
+    
+	usbd_interface_handle	sc_iface;	/* interface */
+
+	enum uftdi_type		sc_type;
+	u_int			sc_hdrlen;
+
+	u_char			sc_msr;
+	u_char			sc_lsr;
+
+	u_char			sc_dying;
+
+	u_int			last_lcr;
+};
+
+Static void	uftdi_get_status(void *, int portno, u_char *lsr, u_char *msr);
+Static void	uftdi_set(void *, int, int, int);
+Static int	uftdi_param(void *, int, struct termios *);
+Static int	uftdi_open(void *sc, int portno);
+Static void	uftdi_read(void *sc, int portno, u_char **ptr,u_int32_t *count);
+Static void	uftdi_write(void *sc, int portno, u_char *to, u_char *from,
+			    u_int32_t *count);
+Static void	uftdi_break(void *sc, int portno, int onoff);
+
+struct ucom_callback uftdi_callback = {
+	uftdi_get_status,
+	uftdi_set,
+	uftdi_param,
+	NULL,
+	uftdi_open,
+	NULL,
+	uftdi_read,
+	uftdi_write,
+};
+
+USB_MATCH(uftdi)
+{
+	USB_MATCH_START(uftdi, uaa);
+
+	if (uaa->iface != NULL)
+		return (UMATCH_NONE);
+
+	DPRINTFN(20,("uftdi: vendor=0x%x, product=0x%x\n",
+		     uaa->vendor, uaa->product));
+
+	if (uaa->vendor == USB_VENDOR_FTDI &&
+	    (uaa->product == USB_PRODUCT_FTDI_SERIAL_8U100AX ||
+	     uaa->product == USB_PRODUCT_FTDI_SERIAL_8U232AM))
+		return (UMATCH_VENDOR_PRODUCT);
+
+	return (UMATCH_NONE);
+}
+
+USB_ATTACH(uftdi)
+{
+	USB_ATTACH_START(uftdi, sc, uaa);
+	usbd_device_handle dev = uaa->device;
+	usbd_interface_handle iface;
+	usb_interface_descriptor_t *id;
+	usb_endpoint_descriptor_t *ed;
+	char *devinfo;
+	const char *devname;
+	int i;
+	usbd_status err;
+	struct ucom_softc *ucom = &sc->sc_ucom;
+	DPRINTFN(10,("\nuftdi_attach: sc=%p\n", sc));
+	devinfo = malloc(1024, M_USBDEV, M_WAITOK);
+
+	ucom->sc_dev = self;
+	ucom->sc_udev = dev;
+
+	devname = USBDEVNAME(ucom->sc_dev);
+
+	/* Move the device into the configured state. */
+	err = usbd_set_config_index(dev, UFTDI_CONFIG_INDEX, 1);
+	if (err) {
+		printf("\n%s: failed to set configuration, err=%s\n",
+		       devname, usbd_errstr(err));
+		goto bad;
+	}
+
+	err = usbd_device2interface_handle(dev, UFTDI_IFACE_INDEX, &iface);
+	if (err) {
+		printf("\n%s: failed to get interface, err=%s\n",
+		       devname, usbd_errstr(err));
+		goto bad;
+	}
+
+	usbd_devinfo(dev, 0, devinfo);
+	/*	USB_ATTACH_SETUP;*/
+	printf("%s: %s\n", devname, devinfo);
+
+	id = usbd_get_interface_descriptor(iface);
+	ucom->sc_iface = iface;
+	switch( uaa->product ){
+	case USB_PRODUCT_FTDI_SERIAL_8U100AX:
+		sc->sc_type = UFTDI_TYPE_SIO;
+		sc->sc_hdrlen = 1;
+		break;
+	case USB_PRODUCT_FTDI_SERIAL_8U232AM:
+		sc->sc_type = UFTDI_TYPE_8U232AM;
+		sc->sc_hdrlen = 0;
+		break;
+
+	default:		/* Can't happen */
+		goto bad;
+	}
+	
+	ucom->sc_bulkin_no = ucom->sc_bulkout_no = -1;
+	
+	for (i = 0; i < id->bNumEndpoints; i++) {
+		int addr, dir, attr;
+		ed = usbd_interface2endpoint_descriptor(iface, i);
+		if (ed == NULL) {
+			printf("%s: could not read endpoint descriptor"
+			       ": %s\n", devname, usbd_errstr(err));
+			goto bad;
+		}
+		
+		addr = ed->bEndpointAddress;
+		dir = UE_GET_DIR(ed->bEndpointAddress);
+		attr = ed->bmAttributes & UE_XFERTYPE;
+		if (dir == UE_DIR_IN && attr == UE_BULK)
+		  ucom->sc_bulkin_no = addr;
+		else if (dir == UE_DIR_OUT && attr == UE_BULK)
+		  ucom->sc_bulkout_no = addr;
+		else {
+		  printf("%s: unexpected endpoint\n", devname);
+		  goto bad;
+		}
+	}
+	if (ucom->sc_bulkin_no == -1) {
+		printf("%s: Could not find data bulk in\n",
+		       devname);
+		goto bad;
+	}
+	if (ucom->sc_bulkout_no == -1) {
+		printf("%s: Could not find data bulk out\n",
+		       devname);
+		goto bad;
+	}
+        ucom->sc_parent  = sc;
+	ucom->sc_portno = FTDI_PIT_SIOA;
+	/* bulkin, bulkout set above */
+
+  	ucom->sc_ibufsize = UFTDIIBUFSIZE;
+	ucom->sc_obufsize = UFTDIOBUFSIZE - sc->sc_hdrlen;
+	ucom->sc_ibufsizepad = UFTDIIBUFSIZE;
+	ucom->sc_opkthdrlen = sc->sc_hdrlen;
+
+
+	ucom->sc_callback = &uftdi_callback;
+#if 0
+	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, ucom->sc_udev,
+			   USBDEV(ucom->sc_dev));
+#endif
+	DPRINTF(("uftdi: in=0x%x out=0x%x\n", ucom->sc_bulkin_no, ucom->sc_bulkout_no));
+	ucom_attach(&sc->sc_ucom);
+	free(devinfo, M_USBDEV);
+		
+	USB_ATTACH_SUCCESS_RETURN;
+
+bad:
+	DPRINTF(("uftdi_attach: ATTACH ERROR\n"));
+	ucom->sc_dying = 1;
+	free(devinfo, M_USBDEV);
+
+	USB_ATTACH_ERROR_RETURN;
+}
+#if 0
+int
+uftdi_activate(device_ptr_t self, enum devact act)
+{
+	struct uftdi_softc *sc = (struct uftdi_softc *)self;
+	int rv = 0;
+
+	switch (act) {
+	case DVACT_ACTIVATE:
+		return (EOPNOTSUPP);
+		break;
+
+	case DVACT_DEACTIVATE:
+		if (sc->sc_subdev != NULL)
+			rv = config_deactivate(sc->sc_subdev);
+		sc->sc_dying = 1;
+		break;
+	}
+	return (rv);
+}
+#endif
+#if 1
+USB_DETACH(uftdi)
+{
+	USB_DETACH_START(uftdi, sc);
+ 
+	int rv = 0;
+
+	DPRINTF(("uftdi_detach: sc=%p flags=%d\n", sc, flags));
+	sc->sc_dying = 1;
+	rv = ucom_detach(&sc->sc_ucom);
+
+	return rv;
+}
+#endif
+Static int
+uftdi_open(void *vsc, int portno)
+{
+	struct uftdi_softc *sc = vsc;
+	struct ucom_softc *ucom = (struct ucom_softc *) vsc;
+	usb_device_request_t req;
+	usbd_status err;
+	struct termios t;
+
+	DPRINTF(("uftdi_open: sc=%p\n", sc));
+
+	if (sc->sc_dying)
+		return (EIO);
+
+	/* Perform a full reset on the device */
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = FTDI_SIO_RESET;
+	USETW(req.wValue, FTDI_SIO_RESET_SIO);
+	USETW(req.wIndex, portno);
+	USETW(req.wLength, 0);
+	err = usbd_do_request(ucom->sc_udev, &req, NULL);
+	if (err)
+		return (EIO);
+
+	/* Set 9600 baud, 2 stop bits, no parity, 8 bits */
+	t.c_ospeed = 9600;
+	t.c_cflag = CSTOPB | CS8;
+	(void)uftdi_param(sc, portno, &t);
+
+	/* Turn on RTS/CTS flow control */
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = FTDI_SIO_SET_FLOW_CTRL;
+	USETW(req.wValue, 0);
+	USETW2(req.wIndex, FTDI_SIO_RTS_CTS_HS, portno);
+	USETW(req.wLength, 0);
+	err = usbd_do_request(ucom->sc_udev, &req, NULL);
+	if (err)
+		return (EIO);
+
+	return (0);
+}
+
+Static void
+uftdi_read(void *vsc, int portno, u_char **ptr, u_int32_t *count)
+{
+	struct uftdi_softc *sc = vsc;
+	u_char msr, lsr;
+
+	DPRINTFN(15,("uftdi_read: sc=%p, port=%d count=%d\n", sc, portno,
+		     *count));
+
+	msr = FTDI_GET_MSR(*ptr);
+	lsr = FTDI_GET_LSR(*ptr);
+
+#ifdef UFTDI_DEBUG
+	if (*count != 2)
+		DPRINTFN(10,("uftdi_read: sc=%p, port=%d count=%d data[0]="
+			    "0x%02x\n", sc, portno, *count, (*ptr)[2]));
+#endif
+
+	if (sc->sc_msr != msr ||
+	    (sc->sc_lsr & FTDI_LSR_MASK) != (lsr & FTDI_LSR_MASK)) {
+		DPRINTF(("uftdi_read: status change msr=0x%02x(0x%02x) "
+			 "lsr=0x%02x(0x%02x)\n", msr, sc->sc_msr,
+			 lsr, sc->sc_lsr));
+		sc->sc_msr = msr;
+		sc->sc_lsr = lsr;
+		ucom_status_change(&sc->sc_ucom);
+	}
+
+	/* Pick up status and adjust data part. */
+	*ptr += 2;
+	*count -= 2;
+}
+
+Static void
+uftdi_write(void *vsc, int portno, u_char *to, u_char *from, u_int32_t *count)
+{
+	struct uftdi_softc *sc = vsc;
+
+	DPRINTFN(10,("uftdi_write: sc=%p, port=%d count=%u data[0]=0x%02x\n",
+		     vsc, portno, *count, from[0]));
+
+	/* Make length tag and copy data */
+	if (sc->sc_hdrlen > 0)
+		*to = FTDI_OUT_TAG(*count, portno);
+
+	memcpy(to + sc->sc_hdrlen, from, *count);
+	*count += sc->sc_hdrlen;
+}
+
+Static void
+uftdi_set(void *vsc, int portno, int reg, int onoff)
+{
+	struct uftdi_softc *sc = vsc;
+	struct ucom_softc *ucom = vsc;
+	usb_device_request_t req;
+	int ctl;
+
+	DPRINTF(("uftdi_set: sc=%p, port=%d reg=%d onoff=%d\n", vsc, portno,
+		 reg, onoff));
+
+	switch (reg) {
+	case UCOM_SET_DTR:
+		ctl = onoff ? FTDI_SIO_SET_DTR_HIGH : FTDI_SIO_SET_DTR_LOW;
+		break;
+	case UCOM_SET_RTS:
+		ctl = onoff ? FTDI_SIO_SET_RTS_HIGH : FTDI_SIO_SET_RTS_LOW;
+		break;
+	case UCOM_SET_BREAK:
+		uftdi_break(sc, portno, onoff);
+		return;
+	default:
+		return;
+	}
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = FTDI_SIO_MODEM_CTRL;
+	USETW(req.wValue, ctl);
+	USETW(req.wIndex, portno);
+	USETW(req.wLength, 0);
+	DPRINTFN(2,("uftdi_set: reqtype=0x%02x req=0x%02x value=0x%04x "
+		    "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest,
+		    UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength)));
+	(void)usbd_do_request(ucom->sc_udev, &req, NULL);
+}
+
+Static int
+uftdi_param(void *vsc, int portno, struct termios *t)
+{
+	struct uftdi_softc *sc = vsc;
+	struct ucom_softc *ucom = vsc;
+	usb_device_request_t req;
+	usbd_status err;
+	int rate=0, data, flow;
+
+	DPRINTF(("uftdi_param: sc=%p\n", sc));
+
+	if (sc->sc_dying)
+		return (EIO);
+
+	switch (sc->sc_type) {
+	case UFTDI_TYPE_SIO:
+		switch (t->c_ospeed) {
+		case 300: rate = ftdi_sio_b300; break;
+		case 600: rate = ftdi_sio_b600; break;
+		case 1200: rate = ftdi_sio_b1200; break;
+		case 2400: rate = ftdi_sio_b2400; break;
+		case 4800: rate = ftdi_sio_b4800; break;
+		case 9600: rate = ftdi_sio_b9600; break;
+		case 19200: rate = ftdi_sio_b19200; break;
+		case 38400: rate = ftdi_sio_b38400; break;
+		case 57600: rate = ftdi_sio_b57600; break;
+		case 115200: rate = ftdi_sio_b115200; break;
+		default:
+			return (EINVAL);
+		}
+		break;
+
+	case UFTDI_TYPE_8U232AM:
+		switch(t->c_ospeed) {
+		case 300: rate = ftdi_8u232am_b300; break;
+		case 600: rate = ftdi_8u232am_b600; break;
+		case 1200: rate = ftdi_8u232am_b1200; break;
+		case 2400: rate = ftdi_8u232am_b2400; break;
+		case 4800: rate = ftdi_8u232am_b4800; break;
+		case 9600: rate = ftdi_8u232am_b9600; break;
+		case 19200: rate = ftdi_8u232am_b19200; break;
+		case 38400: rate = ftdi_8u232am_b38400; break;
+		case 57600: rate = ftdi_8u232am_b57600; break;
+		case 115200: rate = ftdi_8u232am_b115200; break;
+		case 230400: rate = ftdi_8u232am_b230400; break;
+		case 460800: rate = ftdi_8u232am_b460800; break;
+		case 921600: rate = ftdi_8u232am_b921600; break;
+		default:
+			return (EINVAL);
+		}
+		break;
+	}
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = FTDI_SIO_SET_BAUD_RATE;
+	USETW(req.wValue, rate);
+	USETW(req.wIndex, portno);
+	USETW(req.wLength, 0);
+	DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x "
+		    "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest,
+		    UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength)));
+	err = usbd_do_request(ucom->sc_udev, &req, NULL);
+	if (err)
+		return (EIO);
+
+	if (ISSET(t->c_cflag, CSTOPB))
+		data = FTDI_SIO_SET_DATA_STOP_BITS_2;
+	else
+		data = FTDI_SIO_SET_DATA_STOP_BITS_1;
+	if (ISSET(t->c_cflag, PARENB)) {
+		if (ISSET(t->c_cflag, PARODD))
+			data |= FTDI_SIO_SET_DATA_PARITY_ODD;
+		else
+			data |= FTDI_SIO_SET_DATA_PARITY_EVEN;
+	} else
+		data |= FTDI_SIO_SET_DATA_PARITY_NONE;
+	switch (ISSET(t->c_cflag, CSIZE)) {
+	case CS5:
+		data |= FTDI_SIO_SET_DATA_BITS(5);
+		break;
+	case CS6:
+		data |= FTDI_SIO_SET_DATA_BITS(6);
+		break;
+	case CS7:
+		data |= FTDI_SIO_SET_DATA_BITS(7);
+		break;
+	case CS8:
+		data |= FTDI_SIO_SET_DATA_BITS(8);
+		break;
+	}
+	sc->last_lcr = data;
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = FTDI_SIO_SET_DATA;
+	USETW(req.wValue, data);
+	USETW(req.wIndex, portno);
+	USETW(req.wLength, 0);
+	DPRINTFN(2,("uftdi_param: reqtype=0x%02x req=0x%02x value=0x%04x "
+		    "index=0x%04x len=%d\n", req.bmRequestType, req.bRequest,
+		    UGETW(req.wValue), UGETW(req.wIndex), UGETW(req.wLength)));
+	err = usbd_do_request(ucom->sc_udev, &req, NULL);
+	if (err)
+		return (EIO);
+
+	if (ISSET(t->c_cflag, CRTSCTS)) {
+		flow = FTDI_SIO_RTS_CTS_HS;
+		USETW(req.wValue, 0);
+	} else if (ISSET(t->c_iflag, IXON|IXOFF)) {
+		flow = FTDI_SIO_XON_XOFF_HS;
+		USETW2(req.wValue, t->c_cc[VSTOP], t->c_cc[VSTART]);
+	} else {
+		flow = FTDI_SIO_DISABLE_FLOW_CTRL;
+		USETW(req.wValue, 0);
+	}
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = FTDI_SIO_SET_FLOW_CTRL;
+	USETW2(req.wIndex, flow, portno);
+	USETW(req.wLength, 0);
+	err = usbd_do_request(ucom->sc_udev, &req, NULL);
+	if (err)
+		return (EIO);
+
+	return (0);
+}
+
+void
+uftdi_get_status(void *vsc, int portno, u_char *lsr, u_char *msr)
+{
+	struct uftdi_softc *sc = vsc;
+
+	DPRINTF(("uftdi_status: msr=0x%02x lsr=0x%02x\n",
+		 sc->sc_msr, sc->sc_lsr));
+
+	if (msr != NULL)
+		*msr = sc->sc_msr;
+	if (lsr != NULL)
+		*lsr = sc->sc_lsr;
+}
+
+void
+uftdi_break(void *vsc, int portno, int onoff)
+{
+	struct uftdi_softc *sc = vsc;
+	struct ucom_softc *ucom = vsc;
+
+	usb_device_request_t req;
+	int data;
+
+	DPRINTF(("uftdi_break: sc=%p, port=%d onoff=%d\n", vsc, portno,
+		  onoff));
+
+	if (onoff) {
+		data = sc->last_lcr | FTDI_SIO_SET_BREAK;
+	} else {
+		data = sc->last_lcr;
+	}
+
+	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+	req.bRequest = FTDI_SIO_SET_DATA;
+	USETW(req.wValue, data);
+	USETW(req.wIndex, portno);
+	USETW(req.wLength, 0);
+	(void)usbd_do_request(ucom->sc_udev, &req, NULL);
+}
+
+Static device_method_t uftdi_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe, uftdi_match),
+	DEVMETHOD(device_attach, uftdi_attach),
+	DEVMETHOD(device_detach, uftdi_detach),
+
+	{ 0, 0 }
+};
+
+Static driver_t uftdi_driver = {
+	"uftdi",
+	uftdi_methods,
+	sizeof (struct uftdi_softc)
+};
+
+DRIVER_MODULE(uftdi, uhub, uftdi_driver, ucom_devclass, usbd_driver_load, 0);
+MODULE_DEPEND(uftdi, usb, 1, 1, 1);
+MODULE_DEPEND(uftdi, ucom,UCOM_MINVER, UCOM_PREFVER, UCOM_MAXVER);
diff --git a/sys/dev/usb/uftdireg.h b/sys/dev/usb/uftdireg.h
new file mode 100644
index 0000000..15d47f9
--- /dev/null
+++ b/sys/dev/usb/uftdireg.h
@@ -0,0 +1,348 @@
+/*	$NetBSD: uftdireg.h,v 1.6 2002/07/11 21:14:28 augustss Exp $ */
+/*	$FreeBSD$	*/
+
+/*
+ * Definitions for the FTDI USB Single Port Serial Converter -
+ * known as FTDI_SIO (Serial Input/Output application of the chipset)
+ *
+ * The device is based on the FTDI FT8U100AX chip. It has a DB25 on one side,
+ * USB on the other.
+ *
+ * Thanx to FTDI (http://www.ftdi.co.uk) for so kindly providing details
+ * of the protocol required to talk to the device and ongoing assistence
+ * during development.
+ *
+ * Bill Ryder - bryder@sgi.com of Silicon Graphics, Inc. is the original
+ * author of this file.
+ */
+/* Modified by Lennart Augustsson */
+
+/* Vendor Request Interface */
+#define FTDI_SIO_RESET 		0 /* Reset the port */
+#define FTDI_SIO_MODEM_CTRL 	1 /* Set the modem control register */
+#define FTDI_SIO_SET_FLOW_CTRL	2 /* Set flow control register */
+#define FTDI_SIO_SET_BAUD_RATE	3 /* Set baud rate */
+#define FTDI_SIO_SET_DATA	4 /* Set the data characteristics of the port */
+#define FTDI_SIO_GET_STATUS	5 /* Retrieve current value of status reg */
+#define FTDI_SIO_SET_EVENT_CHAR	6 /* Set the event character */
+#define FTDI_SIO_SET_ERROR_CHAR	7 /* Set the error character */
+
+/* Port Identifier Table */
+#define FTDI_PIT_DEFAULT 	0 /* SIOA */
+#define FTDI_PIT_SIOA		1 /* SIOA */
+#define FTDI_PIT_SIOB		2 /* SIOB */
+#define FTDI_PIT_PARALLEL	3 /* Parallel */
+
+enum uftdi_type {
+	UFTDI_TYPE_SIO,
+	UFTDI_TYPE_8U232AM
+};
+
+/*
+ * BmRequestType:  0100 0000B
+ * bRequest:       FTDI_SIO_RESET
+ * wValue:         Control Value
+ *                   0 = Reset SIO
+ *                   1 = Purge RX buffer
+ *                   2 = Purge TX buffer
+ * wIndex:         Port
+ * wLength:        0
+ * Data:           None
+ *
+ * The Reset SIO command has this effect:
+ *
+ *    Sets flow control set to 'none'
+ *    Event char = 0x0d
+ *    Event trigger = disabled
+ *    Purge RX buffer
+ *    Purge TX buffer
+ *    Clear DTR
+ *    Clear RTS
+ *    baud and data format not reset
+ *
+ * The Purge RX and TX buffer commands affect nothing except the buffers
+ *
+ */
+/* FTDI_SIO_RESET */
+#define FTDI_SIO_RESET_SIO 0
+#define FTDI_SIO_RESET_PURGE_RX 1
+#define FTDI_SIO_RESET_PURGE_TX 2
+
+
+/*
+ * BmRequestType:  0100 0000B
+ * bRequest:       FTDI_SIO_SET_BAUDRATE
+ * wValue:         BaudRate value - see below
+ * wIndex:         Port
+ * wLength:        0
+ * Data:           None
+ */
+/* FTDI_SIO_SET_BAUDRATE */
+enum {
+	ftdi_sio_b300 = 0,
+	ftdi_sio_b600 = 1,
+	ftdi_sio_b1200 = 2,
+	ftdi_sio_b2400 = 3,
+	ftdi_sio_b4800 = 4,
+	ftdi_sio_b9600 = 5,
+	ftdi_sio_b19200 = 6,
+	ftdi_sio_b38400 = 7,
+	ftdi_sio_b57600 = 8,
+	ftdi_sio_b115200 = 9
+};
+
+enum {
+	ftdi_8u232am_b300 = 0x2710,
+	ftdi_8u232am_b600 = 0x1388,
+	ftdi_8u232am_b1200 = 0x09c4,
+	ftdi_8u232am_b2400 = 0x04e2,
+	ftdi_8u232am_b4800 = 0x0271,
+	ftdi_8u232am_b9600 = 0x4138,
+	ftdi_8u232am_b19200 = 0x809c,
+	ftdi_8u232am_b38400 = 0xc04e,
+	ftdi_8u232am_b57600 = 0x0034,
+	ftdi_8u232am_b115200 = 0x001a,
+	ftdi_8u232am_b230400 = 0x000d,
+	ftdi_8u232am_b460800 = 0x4006,
+	ftdi_8u232am_b921600 = 0x8003
+};
+
+/*
+ * BmRequestType:  0100 0000B
+ * bRequest:       FTDI_SIO_SET_DATA
+ * wValue:         Data characteristics (see below)
+ * wIndex:         Port
+ * wLength:        0
+ * Data:           No
+ *
+ * Data characteristics
+ *
+ *   B0..7   Number of data bits
+ *   B8..10  Parity
+ *           0 = None
+ *           1 = Odd
+ *           2 = Even
+ *           3 = Mark
+ *           4 = Space
+ *   B11..13 Stop Bits
+ *           0 = 1
+ *           1 = 1.5
+ *           2 = 2
+ *   B14..15 Reserved
+ *
+ */
+/* FTDI_SIO_SET_DATA */
+#define FTDI_SIO_SET_DATA_BITS(n) (n)
+#define FTDI_SIO_SET_DATA_PARITY_NONE (0x0 << 8)
+#define FTDI_SIO_SET_DATA_PARITY_ODD (0x1 << 8)
+#define FTDI_SIO_SET_DATA_PARITY_EVEN (0x2 << 8)
+#define FTDI_SIO_SET_DATA_PARITY_MARK (0x3 << 8)
+#define FTDI_SIO_SET_DATA_PARITY_SPACE (0x4 << 8)
+#define FTDI_SIO_SET_DATA_STOP_BITS_1 (0x0 << 11)
+#define FTDI_SIO_SET_DATA_STOP_BITS_15 (0x1 << 11)
+#define FTDI_SIO_SET_DATA_STOP_BITS_2 (0x2 << 11)
+#define FTDI_SIO_SET_BREAK (0x1 << 14)
+
+
+/*
+ * BmRequestType:   0100 0000B
+ * bRequest:        FTDI_SIO_MODEM_CTRL
+ * wValue:          ControlValue (see below)
+ * wIndex:          Port
+ * wLength:         0
+ * Data:            None
+ *
+ * NOTE: If the device is in RTS/CTS flow control, the RTS set by this
+ * command will be IGNORED without an error being returned
+ * Also - you can not set DTR and RTS with one control message
+ *
+ * ControlValue
+ * B0    DTR state
+ *          0 = reset
+ *          1 = set
+ * B1    RTS state
+ *          0 = reset
+ *          1 = set
+ * B2..7 Reserved
+ * B8    DTR state enable
+ *          0 = ignore
+ *          1 = use DTR state
+ * B9    RTS state enable
+ *          0 = ignore
+ *          1 = use RTS state
+ * B10..15 Reserved
+ */
+/* FTDI_SIO_MODEM_CTRL */
+#define FTDI_SIO_SET_DTR_MASK 0x1
+#define FTDI_SIO_SET_DTR_HIGH (1 | ( FTDI_SIO_SET_DTR_MASK  << 8))
+#define FTDI_SIO_SET_DTR_LOW  (0 | ( FTDI_SIO_SET_DTR_MASK  << 8))
+#define FTDI_SIO_SET_RTS_MASK 0x2
+#define FTDI_SIO_SET_RTS_HIGH (2 | ( FTDI_SIO_SET_RTS_MASK << 8))
+#define FTDI_SIO_SET_RTS_LOW (0 | ( FTDI_SIO_SET_RTS_MASK << 8))
+
+
+/*
+ *   BmRequestType:  0100 0000b
+ *   bRequest:       FTDI_SIO_SET_FLOW_CTRL
+ *   wValue:         Xoff/Xon
+ *   wIndex:         Protocol/Port - hIndex is protocl / lIndex is port
+ *   wLength:        0
+ *   Data:           None
+ *
+ * hIndex protocol is:
+ *   B0 Output handshaking using RTS/CTS
+ *       0 = disabled
+ *       1 = enabled
+ *   B1 Output handshaking using DTR/DSR
+ *       0 = disabled
+ *       1 = enabled
+ *   B2 Xon/Xoff handshaking
+ *       0 = disabled
+ *       1 = enabled
+ *
+ * A value of zero in the hIndex field disables handshaking
+ *
+ * If Xon/Xoff handshaking is specified, the hValue field should contain the
+ * XOFF character and the lValue field contains the XON character.
+ */
+/* FTDI_SIO_SET_FLOW_CTRL */
+#define FTDI_SIO_DISABLE_FLOW_CTRL 0x0
+#define FTDI_SIO_RTS_CTS_HS 0x1
+#define FTDI_SIO_DTR_DSR_HS 0x2
+#define FTDI_SIO_XON_XOFF_HS 0x4
+
+
+/*
+ *  BmRequestType:   0100 0000b
+ *  bRequest:        FTDI_SIO_SET_EVENT_CHAR
+ *  wValue:          Event Char
+ *  wIndex:          Port
+ *  wLength:         0
+ *  Data:            None
+ *
+ * wValue:
+ *   B0..7   Event Character
+ *   B8      Event Character Processing
+ *             0 = disabled
+ *             1 = enabled
+ *   B9..15  Reserved
+ *
+ * FTDI_SIO_SET_EVENT_CHAR
+ *
+ * Set the special event character for the specified communications port.
+ * If the device sees this character it will immediately return the
+ * data read so far - rather than wait 40ms or until 62 bytes are read
+ * which is what normally happens.
+ */
+
+
+
+/*
+ *  BmRequestType:  0100 0000b
+ *  bRequest:       FTDI_SIO_SET_ERROR_CHAR
+ *  wValue:         Error Char
+ *  wIndex:         Port
+ *  wLength:        0
+ *  Data:           None
+ *
+ *  Error Char
+ *  B0..7  Error Character
+ *  B8     Error Character Processing
+ *           0 = disabled
+ *           1 = enabled
+ *  B9..15 Reserved
+ *
+ *
+ * FTDI_SIO_SET_ERROR_CHAR
+ * Set the parity error replacement character for the specified communications
+ * port.
+ */
+
+
+/*
+ *   BmRequestType:   1100 0000b
+ *   bRequest:        FTDI_SIO_GET_MODEM_STATUS
+ *   wValue:          zero
+ *   wIndex:          Port
+ *   wLength:         1
+ *   Data:            Status
+ *
+ * One byte of data is returned
+ * B0..3 0
+ * B4    CTS
+ *         0 = inactive
+ *         1 = active
+ * B5    DSR
+ *         0 = inactive
+ *         1 = active
+ * B6    Ring Indicator (RI)
+ *         0 = inactive
+ *         1 = active
+ * B7    Receive Line Signal Detect (RLSD)
+ *         0 = inactive
+ *         1 = active
+ *
+ * FTDI_SIO_GET_MODEM_STATUS
+ * Retrieve the current value of the modem status register.
+ */
+#define FTDI_SIO_CTS_MASK 0x10
+#define FTDI_SIO_DSR_MASK 0x20
+#define FTDI_SIO_RI_MASK  0x40
+#define FTDI_SIO_RLSD_MASK 0x80
+
+
+
+/*
+ *
+ * DATA FORMAT
+ *
+ * IN Endpoint
+ *
+ * The device reserves the first two bytes of data on this endpoint to contain
+ * the current values of the modem and line status registers. In the absence of
+ * data, the device generates a message consisting of these two status bytes
+ * every 40 ms.
+ *
+ * Byte 0: Modem Status
+ *   NOTE: 4 upper bits have same layout as the MSR register in a 16550
+ *
+ * Offset	Description
+ * B0..3	Port
+ * B4		Clear to Send (CTS)
+ * B5		Data Set Ready (DSR)
+ * B6		Ring Indicator (RI)
+ * B7		Receive Line Signal Detect (RLSD)
+ *
+ * Byte 1: Line Status
+ *   NOTE: same layout as the LSR register in a 16550
+ *
+ * Offset	Description
+ * B0	Data Ready (DR)
+ * B1	Overrun Error (OE)
+ * B2	Parity Error (PE)
+ * B3	Framing Error (FE)
+ * B4	Break Interrupt (BI)
+ * B5	Transmitter Holding Register (THRE)
+ * B6	Transmitter Empty (TEMT)
+ * B7	Error in RCVR FIFO
+ *
+ *
+ * OUT Endpoint
+ *
+ * This device reserves the first bytes of data on this endpoint contain the
+ * length and port identifier of the message. For the FTDI USB Serial converter
+ * the port identifier is always 1.
+ *
+ * Byte 0: Port & length
+ *
+ * Offset	Description
+ * B0..1	Port
+ * B2..7	Length of message - (not including Byte 0)
+ *
+ */
+#define FTDI_PORT_MASK 0x0f
+#define FTDI_MSR_MASK 0xf0
+#define FTDI_GET_MSR(p) (((p)[0]) & FTDI_MSR_MASK)
+#define FTDI_GET_LSR(p) ((p)[1])
+#define FTDI_LSR_MASK (~0x60) /* interesting bits */
+#define FTDI_OUT_TAG(len, port) (((len) << 2) | (port))
diff --git a/sys/modules/Makefile b/sys/modules/Makefile
index 0db3265..29ad973 100644
--- a/sys/modules/Makefile
+++ b/sys/modules/Makefile
@@ -94,6 +94,7 @@ SUBDIR=	3dfx \
 	udbp \
 	ufm \
 	udf \
+	uftdi \
 	ugen \
 	uhid \
 	ukbd \
diff --git a/sys/modules/uftdi/Makefile b/sys/modules/uftdi/Makefile
new file mode 100644
index 0000000..7a94233
--- /dev/null
+++ b/sys/modules/uftdi/Makefile
@@ -0,0 +1,10 @@
+# $FreeBSD$
+
+S=	${.CURDIR}/../..
+.PATH: $S/dev/usb
+
+KMOD=	uftdi
+SRCS=	uftdi.c uftdireg.h opt_usb.h device_if.h bus_if.h vnode_if.h
+NOMAN=
+
+.include <bsd.kmod.mk>