[dragonfly.git] / sys / netgraph7 / bluetooth / drivers / ubtbcmfw / ubtbcmfw.c

/*
 * ubtbcmfw.c
 */

/*-
 * Copyright (c) 2003 Maksim Yevmenkin <m_evmenkin@yahoo.com>
 * 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.
 *
 * $Id: ubtbcmfw.c,v 1.3 2003/10/10 19:15:08 max Exp $
 * $FreeBSD: src/sys/netgraph/bluetooth/drivers/ubtbcmfw/ubtbcmfw.c,v 1.18 2007/06/23 04:34:38 imp Exp $
 * $DragonFly: src/sys/netgraph7/bluetooth/drivers/ubtbcmfw/ubtbcmfw.c,v 1.2 2008/06/26 23:05:40 dillon Exp $
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/filio.h>
#include <sys/fcntl.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/poll.h>
#include <sys/proc.h>
#include <sys/sysctl.h>
#include <sys/uio.h>

#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>

#include "usbdevs.h"

/*
 * Download firmware to BCM2033.
 */

#define UBTBCMFW_CONFIG_NO	1	/* Config number */
#define UBTBCMFW_IFACE_IDX	0 	/* Control interface */
#define UBTBCMFW_INTR_IN_EP	0x81	/* Fixed endpoint */
#define UBTBCMFW_BULK_OUT_EP	0x02	/* Fixed endpoint */
#define UBTBCMFW_INTR_IN	UE_GET_ADDR(UBTBCMFW_INTR_IN_EP)
#define UBTBCMFW_BULK_OUT	UE_GET_ADDR(UBTBCMFW_BULK_OUT_EP)

struct ubtbcmfw_softc {
	device_t		sc_dev;			/* base device */
	usbd_device_handle	sc_udev;		/* USB device handle */
	struct cdev *sc_ctrl_dev;		/* control device */
	struct cdev *sc_intr_in_dev;		/* interrupt device */
	struct cdev *sc_bulk_out_dev;	/* bulk device */
	usbd_pipe_handle	sc_intr_in_pipe;	/* interrupt pipe */
	usbd_pipe_handle	sc_bulk_out_pipe;	/* bulk out pipe */
	int			sc_flags;
#define UBTBCMFW_CTRL_DEV	(1 << 0)
#define UBTBCMFW_INTR_IN_DEV	(1 << 1)
#define UBTBCMFW_BULK_OUT_DEV	(1 << 2)
	int			sc_refcnt;
	int			sc_dying;
};

typedef struct ubtbcmfw_softc	*ubtbcmfw_softc_p;

/*
 * Device methods
 */

#define UBTBCMFW_UNIT(n)	((minor(n) >> 4) & 0xf)
#define UBTBCMFW_ENDPOINT(n)	(minor(n) & 0xf)
#define UBTBCMFW_MINOR(u, e)	(((u) << 4) | (e))
#define UBTBCMFW_BSIZE		1024

static d_open_t		ubtbcmfw_open;
static d_close_t	ubtbcmfw_close;
static d_read_t		ubtbcmfw_read;
static d_write_t	ubtbcmfw_write;
static d_ioctl_t	ubtbcmfw_ioctl;
static d_poll_t		ubtbcmfw_poll;

static struct cdevsw	ubtbcmfw_cdevsw = {
	.d_version =	D_VERSION,
	.d_flags =	D_NEEDGIANT,
	.d_open =	ubtbcmfw_open,
	.d_close =	ubtbcmfw_close,
	.d_read =	ubtbcmfw_read,
	.d_write =	ubtbcmfw_write,
	.d_ioctl =	ubtbcmfw_ioctl,
	.d_poll =	ubtbcmfw_poll,
	.d_name =	"ubtbcmfw",
};

/*
 * Module
 */

static device_probe_t ubtbcmfw_match;
static device_attach_t ubtbcmfw_attach;
static device_detach_t ubtbcmfw_detach;

static device_method_t ubtbcmfw_methods[] = {
	/* Device interface */
	DEVMETHOD(device_probe,		ubtbcmfw_match),
	DEVMETHOD(device_attach,	ubtbcmfw_attach),
	DEVMETHOD(device_detach,	ubtbcmfw_detach),

	{ 0, 0 }
};

static driver_t ubtbcmfw_driver = {
	"ubtbcmfw",
	ubtbcmfw_methods,
	sizeof(struct ubtbcmfw_softc)
};

static devclass_t ubtbcmfw_devclass;

MODULE_DEPEND(ubtbcmfw, usb, 1, 1, 1);
DRIVER_MODULE(ubtbcmfw, uhub, ubtbcmfw_driver, ubtbcmfw_devclass,
	      usbd_driver_load, 0);

/*
 * Probe for a USB Bluetooth device
 */

static int
ubtbcmfw_match(device_t self)
{
#define	USB_PRODUCT_BROADCOM_BCM2033NF	0x2033
	struct usb_attach_arg *uaa = device_get_ivars(self);

	if (uaa->iface != NULL)
		return (UMATCH_NONE);

	/* Match the boot device. */
	if (uaa->vendor == USB_VENDOR_BROADCOM &&
	    uaa->product == USB_PRODUCT_BROADCOM_BCM2033NF)
		return (UMATCH_VENDOR_PRODUCT);

	return (UMATCH_NONE);
}

/*
 * Attach the device
 */

static int
ubtbcmfw_attach(device_t self)
{
	struct ubtbcmfw_softc *sc = device_get_softc(self);
	struct usb_attach_arg *uaa = device_get_ivars(self);
	usbd_interface_handle	iface;
	usbd_status		err;

	sc->sc_dev = self;
	sc->sc_udev = uaa->device;

	sc->sc_ctrl_dev = sc->sc_intr_in_dev = sc->sc_bulk_out_dev = NULL;
	sc->sc_intr_in_pipe = sc->sc_bulk_out_pipe = NULL;
	sc->sc_flags = sc->sc_refcnt = sc->sc_dying = 0;

	err = usbd_set_config_no(sc->sc_udev, UBTBCMFW_CONFIG_NO, 1);
	if (err) {
		printf("%s: setting config no failed. %s\n",
			device_get_nameunit(sc->sc_dev), usbd_errstr(err));
		goto bad;
	}

	err = usbd_device2interface_handle(sc->sc_udev, UBTBCMFW_IFACE_IDX,
			&iface);
	if (err) {
		printf("%s: getting interface handle failed. %s\n",
			device_get_nameunit(sc->sc_dev), usbd_errstr(err));
		goto bad;
	}

	/* Will be used as a bulk pipe */
	err = usbd_open_pipe(iface, UBTBCMFW_INTR_IN_EP, 0,
			&sc->sc_intr_in_pipe);
	if (err) {
		printf("%s: open intr in failed. %s\n",
			device_get_nameunit(sc->sc_dev), usbd_errstr(err));
		goto bad;
	}

	err = usbd_open_pipe(iface, UBTBCMFW_BULK_OUT_EP, 0,
			&sc->sc_bulk_out_pipe);
	if (err) {
		printf("%s: open bulk out failed. %s\n",
			device_get_nameunit(sc->sc_dev), usbd_errstr(err));
		goto bad;
	}

	/* Create device nodes */
	sc->sc_ctrl_dev = make_dev(&ubtbcmfw_cdevsw,
		UBTBCMFW_MINOR(device_get_unit(sc->sc_dev), 0),
		UID_ROOT, GID_OPERATOR, 0644,
		"%s", device_get_nameunit(sc->sc_dev));

	sc->sc_intr_in_dev = make_dev(&ubtbcmfw_cdevsw,
		UBTBCMFW_MINOR(device_get_unit(sc->sc_dev), UBTBCMFW_INTR_IN),
		UID_ROOT, GID_OPERATOR, 0644,
		"%s.%d", device_get_nameunit(sc->sc_dev), UBTBCMFW_INTR_IN);

	sc->sc_bulk_out_dev = make_dev(&ubtbcmfw_cdevsw,
		UBTBCMFW_MINOR(device_get_unit(sc->sc_dev), UBTBCMFW_BULK_OUT),
		UID_ROOT, GID_OPERATOR, 0644,
		"%s.%d", device_get_nameunit(sc->sc_dev), UBTBCMFW_BULK_OUT);

	return 0;
bad:
	ubtbcmfw_detach(self);  
	return ENXIO;
}

/*
 * Detach the device
 */

static int
ubtbcmfw_detach(device_t self)
{
	struct ubtbcmfw_softc *sc = device_get_softc(self);

	sc->sc_dying = 1;
	if (-- sc->sc_refcnt >= 0) {
		if (sc->sc_intr_in_pipe != NULL) 
			usbd_abort_pipe(sc->sc_intr_in_pipe);

		if (sc->sc_bulk_out_pipe != NULL) 
			usbd_abort_pipe(sc->sc_bulk_out_pipe);

		usb_detach_wait(sc->sc_dev);
	}

	/* Destroy device nodes */
	if (sc->sc_bulk_out_dev != NULL) {
		destroy_dev(sc->sc_bulk_out_dev);
		sc->sc_bulk_out_dev = NULL;
	}

	if (sc->sc_intr_in_dev != NULL) {
		destroy_dev(sc->sc_intr_in_dev);
		sc->sc_intr_in_dev = NULL;
	}

	if (sc->sc_ctrl_dev != NULL) {
		destroy_dev(sc->sc_ctrl_dev);
		sc->sc_ctrl_dev = NULL;
	}

	/* Close pipes */
	if (sc->sc_intr_in_pipe != NULL) {
		usbd_close_pipe(sc->sc_intr_in_pipe);
		sc->sc_intr_in_pipe = NULL;
	}

	if (sc->sc_bulk_out_pipe != NULL) {
		usbd_close_pipe(sc->sc_bulk_out_pipe);
		sc->sc_intr_in_pipe = NULL;
	}

	return (0);
}

/*
 * Open endpoint device
 * XXX FIXME softc locking
 */

static int
ubtbcmfw_open(struct cdev *dev, int flag, int mode, struct thread *p)
{
	ubtbcmfw_softc_p	sc = NULL;
	int			error = 0;

	/* checks for sc != NULL */
	sc = devclass_get_softc(ubtbcmfw_devclass, UBTBCMFW_UNIT(dev));
	if (sc == NULL)
		return (ENXIO);
	if (sc->sc_dying)
		return (ENXIO);

	switch (UBTBCMFW_ENDPOINT(dev)) {
	case USB_CONTROL_ENDPOINT:
		if (!(sc->sc_flags & UBTBCMFW_CTRL_DEV))
			sc->sc_flags |= UBTBCMFW_CTRL_DEV;
		else
			error = EBUSY;
		break;

	case UBTBCMFW_INTR_IN:
		if (!(sc->sc_flags & UBTBCMFW_INTR_IN_DEV)) {
			if (sc->sc_intr_in_pipe != NULL)
				sc->sc_flags |= UBTBCMFW_INTR_IN_DEV;
			else
				error = ENXIO;
		} else
			error = EBUSY;
		break;

	case UBTBCMFW_BULK_OUT:
		if (!(sc->sc_flags & UBTBCMFW_BULK_OUT_DEV)) {
			if (sc->sc_bulk_out_pipe != NULL)
				sc->sc_flags |= UBTBCMFW_BULK_OUT_DEV;
			else
				error = ENXIO;
		} else
			error = EBUSY;
		break;

	default:
		error = ENXIO;
		break;
	}

	return (error);
}

/*
 * Close endpoint device
 * XXX FIXME softc locking
 */

static int
ubtbcmfw_close(struct cdev *dev, int flag, int mode, struct thread *p)
{
	ubtbcmfw_softc_p	sc = NULL;

	sc = devclass_get_softc(ubtbcmfw_devclass, UBTBCMFW_UNIT(dev));
	if (sc == NULL)
		return (ENXIO);

	switch (UBTBCMFW_ENDPOINT(dev)) {
	case USB_CONTROL_ENDPOINT:
		sc->sc_flags &= ~UBTBCMFW_CTRL_DEV;
		break;

	case UBTBCMFW_INTR_IN:
		if (sc->sc_intr_in_pipe != NULL)
			usbd_abort_pipe(sc->sc_intr_in_pipe);

		sc->sc_flags &= ~UBTBCMFW_INTR_IN_DEV;
		break;

	case UBTBCMFW_BULK_OUT:
		if (sc->sc_bulk_out_pipe != NULL)
			usbd_abort_pipe(sc->sc_bulk_out_pipe);

		sc->sc_flags &= ~UBTBCMFW_BULK_OUT_DEV;
		break;
	}

	return (0);
}

/*
 * Read from the endpoint device
 * XXX FIXME softc locking
 */

static int
ubtbcmfw_read(struct cdev *dev, struct uio *uio, int flag)
{
	ubtbcmfw_softc_p	sc = NULL;
	u_int8_t		buf[UBTBCMFW_BSIZE];
	usbd_xfer_handle	xfer;
	usbd_status		err;
	int			n, tn, error = 0;

	sc = devclass_get_softc(ubtbcmfw_devclass, UBTBCMFW_UNIT(dev));
	if (sc == NULL || sc->sc_dying)
		return (ENXIO);

	if (UBTBCMFW_ENDPOINT(dev) != UBTBCMFW_INTR_IN)
		return (EOPNOTSUPP);
	if (sc->sc_intr_in_pipe == NULL)
		return (ENXIO);

	xfer = usbd_alloc_xfer(sc->sc_udev);
	if (xfer == NULL)
		return (ENOMEM);

	sc->sc_refcnt ++;

	while ((n = (int)szmin(sizeof(buf), uio->uio_resid)) != 0) {
		tn = n;
		err = usbd_bulk_transfer(xfer, sc->sc_intr_in_pipe,
				USBD_SHORT_XFER_OK, USBD_DEFAULT_TIMEOUT,
				buf, &tn, "bcmrd");
		switch (err) {
		case USBD_NORMAL_COMPLETION:
			error = uiomove(buf, (size_t)tn, uio);
			break;

		case USBD_INTERRUPTED:
			error = EINTR;
			break;

		case USBD_TIMEOUT:
			error = ETIMEDOUT;
			break;

		default:
			error = EIO;
			break;
		}

		if (error != 0 || tn < n)
			break;
	}

	usbd_free_xfer(xfer);

	if (-- sc->sc_refcnt < 0)
		usb_detach_wakeup(sc->sc_dev);

	return (error);
}

/*
 * Write into the endpoint device
 * XXX FIXME softc locking
 */

static int
ubtbcmfw_write(struct cdev *dev, struct uio *uio, int flag)
{
	ubtbcmfw_softc_p	sc = NULL;
	u_int8_t		buf[UBTBCMFW_BSIZE];
	usbd_xfer_handle	xfer;
	usbd_status		err;
	int			n, error = 0;

	sc = devclass_get_softc(ubtbcmfw_devclass, UBTBCMFW_UNIT(dev));
	if (sc == NULL || sc->sc_dying)
		return (ENXIO);

	if (UBTBCMFW_ENDPOINT(dev) != UBTBCMFW_BULK_OUT)
		return (EOPNOTSUPP);
	if (sc->sc_bulk_out_pipe == NULL)
		return (ENXIO);

	xfer = usbd_alloc_xfer(sc->sc_udev);
	if (xfer == NULL)
		return (ENOMEM);

	sc->sc_refcnt ++;

	while ((n = (int)szmin(sizeof(buf), uio->uio_resid)) != 0) {
		error = uiomove(buf, (size_t)n, uio);
		if (error != 0)
			break;

		err = usbd_bulk_transfer(xfer, sc->sc_bulk_out_pipe,
				0, USBD_DEFAULT_TIMEOUT, buf, &n, "bcmwr");
		switch (err) {
		case USBD_NORMAL_COMPLETION:
			break;

		case USBD_INTERRUPTED:
			error = EINTR;
			break;

		case USBD_TIMEOUT:
			error = ETIMEDOUT;
			break;

		default:
			error = EIO;
			break;
		}

		if (error != 0)
			break;
	}

	usbd_free_xfer(xfer);

	if (-- sc->sc_refcnt < 0)
		usb_detach_wakeup(sc->sc_dev);

	return (error);
}

/*
 * Process ioctl on the endpoint device
 * XXX FIXME softc locking
 */

static int
ubtbcmfw_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag,
  struct thread *p)
{
	ubtbcmfw_softc_p	sc = NULL;
	int			error = 0;

	sc = devclass_get_softc(ubtbcmfw_devclass, UBTBCMFW_UNIT(dev));
	if (sc == NULL || sc->sc_dying)
		return (ENXIO);

	if (UBTBCMFW_ENDPOINT(dev) != USB_CONTROL_ENDPOINT)
		return (EOPNOTSUPP);

	sc->sc_refcnt ++;

	switch (cmd) {
	case USB_GET_DEVICE_DESC:
		*(usb_device_descriptor_t *) data =
				*usbd_get_device_descriptor(sc->sc_udev);
		break;

	default:
		error = EINVAL;
		break;
	}

	if (-- sc->sc_refcnt < 0)
		usb_detach_wakeup(sc->sc_dev);

	return (error);
}

/*
 * Poll the endpoint device
 * XXX FIXME softc locking
 */

static int
ubtbcmfw_poll(struct cdev *dev, int events, struct thread *p)
{
	ubtbcmfw_softc_p	sc = NULL;
	int			revents = 0;

	sc = devclass_get_softc(ubtbcmfw_devclass, UBTBCMFW_UNIT(dev));
	if (sc == NULL)
		return (ENXIO);

	switch (UBTBCMFW_ENDPOINT(dev)) {
	case UBTBCMFW_INTR_IN:
		if (sc->sc_intr_in_pipe != NULL)
			revents |= events & (POLLIN | POLLRDNORM);
		else
			revents = ENXIO;
		break;

	case UBTBCMFW_BULK_OUT:
		if (sc->sc_bulk_out_pipe != NULL)
			revents |= events & (POLLOUT | POLLWRNORM);
		else
			revents = ENXIO;
		break;

	default:
		revents = EOPNOTSUPP;
		break;
	}

	return (revents);
}
Commit	Line	Data
b06ebda0 MD	1	/*
	2	* ubtbcmfw.c
	3	*/
	4
	5	/*-
	6	* Copyright (c) 2003 Maksim Yevmenkin <m_evmenkin@yahoo.com>
	7	* All rights reserved.
	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	*
	18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
	19	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	20	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	21	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	22	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	23	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	24	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	25	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	26	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	27	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	28	* SUCH DAMAGE.
	29	*
	30	* $Id: ubtbcmfw.c,v 1.3 2003/10/10 19:15:08 max Exp $
	31	* $FreeBSD: src/sys/netgraph/bluetooth/drivers/ubtbcmfw/ubtbcmfw.c,v 1.18 2007/06/23 04:34:38 imp Exp $
5a975a3d	32	* $DragonFly: src/sys/netgraph7/bluetooth/drivers/ubtbcmfw/ubtbcmfw.c,v 1.2 2008/06/26 23:05:40 dillon Exp $
b06ebda0 MD	33	*/
	34
	35	#include <sys/param.h>
	36	#include <sys/systm.h>
	37	#include <sys/bus.h>
	38	#include <sys/conf.h>
	39	#include <sys/filio.h>
	40	#include <sys/fcntl.h>
	41	#include <sys/kernel.h>
	42	#include <sys/module.h>
	43	#include <sys/poll.h>
	44	#include <sys/proc.h>
	45	#include <sys/sysctl.h>
	46	#include <sys/uio.h>
	47
	48	#include <dev/usb/usb.h>
	49	#include <dev/usb/usbdi.h>
	50	#include <dev/usb/usbdi_util.h>
	51
	52	#include "usbdevs.h"
	53
	54	/*
	55	* Download firmware to BCM2033.
	56	*/
	57
	58	#define UBTBCMFW_CONFIG_NO 1 /* Config number */
	59	#define UBTBCMFW_IFACE_IDX 0 /* Control interface */
	60	#define UBTBCMFW_INTR_IN_EP 0x81 /* Fixed endpoint */
	61	#define UBTBCMFW_BULK_OUT_EP 0x02 /* Fixed endpoint */
	62	#define UBTBCMFW_INTR_IN UE_GET_ADDR(UBTBCMFW_INTR_IN_EP)
	63	#define UBTBCMFW_BULK_OUT UE_GET_ADDR(UBTBCMFW_BULK_OUT_EP)
	64
	65	struct ubtbcmfw_softc {
	66	device_t sc_dev; /* base device */
	67	usbd_device_handle sc_udev; /* USB device handle */
	68	struct cdev sc_ctrl_dev; / control device */
	69	struct cdev sc_intr_in_dev; / interrupt device */
	70	struct cdev sc_bulk_out_dev; / bulk device */
	71	usbd_pipe_handle sc_intr_in_pipe; /* interrupt pipe */
	72	usbd_pipe_handle sc_bulk_out_pipe; /* bulk out pipe */
	73	int sc_flags;
	74	#define UBTBCMFW_CTRL_DEV (1 << 0)
	75	#define UBTBCMFW_INTR_IN_DEV (1 << 1)
	76	#define UBTBCMFW_BULK_OUT_DEV (1 << 2)
	77	int sc_refcnt;
	78	int sc_dying;
	79	};
	80
	81	typedef struct ubtbcmfw_softc *ubtbcmfw_softc_p;
	82
	83	/*
	84	* Device methods
	85	*/
	86
	87	#define UBTBCMFW_UNIT(n) ((minor(n) >> 4) & 0xf)
	88	#define UBTBCMFW_ENDPOINT(n) (minor(n) & 0xf)
	89	#define UBTBCMFW_MINOR(u, e) (((u) << 4) \| (e))
	90	#define UBTBCMFW_BSIZE 1024
	91
	92	static d_open_t ubtbcmfw_open;
	93	static d_close_t ubtbcmfw_close;
	94	static d_read_t ubtbcmfw_read;
	95	static d_write_t ubtbcmfw_write;
	96	static d_ioctl_t ubtbcmfw_ioctl;
97	static d_poll_t ubtbcmfw_poll;
98
99	static struct cdevsw ubtbcmfw_cdevsw = {
100	.d_version = D_VERSION,
101	.d_flags = D_NEEDGIANT,
102	.d_open = ubtbcmfw_open,
103	.d_close = ubtbcmfw_close,
104	.d_read = ubtbcmfw_read,
105	.d_write = ubtbcmfw_write,
106	.d_ioctl = ubtbcmfw_ioctl,
107	.d_poll = ubtbcmfw_poll,
108	.d_name = "ubtbcmfw",
109	};
110
111	/*
112	* Module
113	*/
114
115	static device_probe_t ubtbcmfw_match;
116	static device_attach_t ubtbcmfw_attach;
117	static device_detach_t ubtbcmfw_detach;
118
119	static device_method_t ubtbcmfw_methods[] = {
120	/* Device interface */
121	DEVMETHOD(device_probe, ubtbcmfw_match),
122	DEVMETHOD(device_attach, ubtbcmfw_attach),
123	DEVMETHOD(device_detach, ubtbcmfw_detach),
124
125	{ 0, 0 }
126	};
127
128	static driver_t ubtbcmfw_driver = {
129	"ubtbcmfw",
130	ubtbcmfw_methods,
131	sizeof(struct ubtbcmfw_softc)
132	};
133
134	static devclass_t ubtbcmfw_devclass;
135
136	MODULE_DEPEND(ubtbcmfw, usb, 1, 1, 1);
137	DRIVER_MODULE(ubtbcmfw, uhub, ubtbcmfw_driver, ubtbcmfw_devclass,
138	usbd_driver_load, 0);
139
140	/*
141	* Probe for a USB Bluetooth device
142	*/
143
144	static int
145	ubtbcmfw_match(device_t self)
146	{
147	#define USB_PRODUCT_BROADCOM_BCM2033NF 0x2033
148	struct usb_attach_arg *uaa = device_get_ivars(self);
149
150	if (uaa->iface != NULL)
151	return (UMATCH_NONE);
152
153	/* Match the boot device. */
154	if (uaa->vendor == USB_VENDOR_BROADCOM &&
155	uaa->product == USB_PRODUCT_BROADCOM_BCM2033NF)
156	return (UMATCH_VENDOR_PRODUCT);
157
158	return (UMATCH_NONE);
159	}
160
161	/*
162	* Attach the device
163	*/
164
165	static int
166	ubtbcmfw_attach(device_t self)
167	{
168	struct ubtbcmfw_softc *sc = device_get_softc(self);
169	struct usb_attach_arg *uaa = device_get_ivars(self);
170	usbd_interface_handle iface;
171	usbd_status err;
172
173	sc->sc_dev = self;
174	sc->sc_udev = uaa->device;
175
176	sc->sc_ctrl_dev = sc->sc_intr_in_dev = sc->sc_bulk_out_dev = NULL;
177	sc->sc_intr_in_pipe = sc->sc_bulk_out_pipe = NULL;
178	sc->sc_flags = sc->sc_refcnt = sc->sc_dying = 0;
179
180	err = usbd_set_config_no(sc->sc_udev, UBTBCMFW_CONFIG_NO, 1);
181	if (err) {
182	printf("%s: setting config no failed. %s\n",
183	device_get_nameunit(sc->sc_dev), usbd_errstr(err));
184	goto bad;
185	}
186
187	err = usbd_device2interface_handle(sc->sc_udev, UBTBCMFW_IFACE_IDX,
188	&iface);
189	if (err) {
190	printf("%s: getting interface handle failed. %s\n",
191	device_get_nameunit(sc->sc_dev), usbd_errstr(err));
192	goto bad;
193	}
194
195	/* Will be used as a bulk pipe */
196	err = usbd_open_pipe(iface, UBTBCMFW_INTR_IN_EP, 0,
197	&sc->sc_intr_in_pipe);
198	if (err) {
199	printf("%s: open intr in failed. %s\n",
200	device_get_nameunit(sc->sc_dev), usbd_errstr(err));
201	goto bad;
202	}
203
204	err = usbd_open_pipe(iface, UBTBCMFW_BULK_OUT_EP, 0,
205	&sc->sc_bulk_out_pipe);
206	if (err) {
207	printf("%s: open bulk out failed. %s\n",
208	device_get_nameunit(sc->sc_dev), usbd_errstr(err));
209	goto bad;
210	}
211
212	/* Create device nodes */
213	sc->sc_ctrl_dev = make_dev(&ubtbcmfw_cdevsw,
214	UBTBCMFW_MINOR(device_get_unit(sc->sc_dev), 0),
215	UID_ROOT, GID_OPERATOR, 0644,
216	"%s", device_get_nameunit(sc->sc_dev));
217
218	sc->sc_intr_in_dev = make_dev(&ubtbcmfw_cdevsw,
219	UBTBCMFW_MINOR(device_get_unit(sc->sc_dev), UBTBCMFW_INTR_IN),
220	UID_ROOT, GID_OPERATOR, 0644,
221	"%s.%d", device_get_nameunit(sc->sc_dev), UBTBCMFW_INTR_IN);
222
223	sc->sc_bulk_out_dev = make_dev(&ubtbcmfw_cdevsw,
224	UBTBCMFW_MINOR(device_get_unit(sc->sc_dev), UBTBCMFW_BULK_OUT),
225	UID_ROOT, GID_OPERATOR, 0644,
226	"%s.%d", device_get_nameunit(sc->sc_dev), UBTBCMFW_BULK_OUT);
227
228	return 0;
229	bad:
230	ubtbcmfw_detach(self);
231	return ENXIO;
232	}
233
234	/*
235	* Detach the device
236	*/
237
238	static int
239	ubtbcmfw_detach(device_t self)
240	{
241	struct ubtbcmfw_softc *sc = device_get_softc(self);
242
243	sc->sc_dying = 1;
244	if (-- sc->sc_refcnt >= 0) {
245	if (sc->sc_intr_in_pipe != NULL)
246	usbd_abort_pipe(sc->sc_intr_in_pipe);
247
248	if (sc->sc_bulk_out_pipe != NULL)
249	usbd_abort_pipe(sc->sc_bulk_out_pipe);
250
251	usb_detach_wait(sc->sc_dev);
252	}
253
254	/* Destroy device nodes */
255	if (sc->sc_bulk_out_dev != NULL) {
256	destroy_dev(sc->sc_bulk_out_dev);
257	sc->sc_bulk_out_dev = NULL;
258	}
259
260	if (sc->sc_intr_in_dev != NULL) {
261	destroy_dev(sc->sc_intr_in_dev);
262	sc->sc_intr_in_dev = NULL;
263	}
264
265	if (sc->sc_ctrl_dev != NULL) {
266	destroy_dev(sc->sc_ctrl_dev);
267	sc->sc_ctrl_dev = NULL;
268	}
269
270	/* Close pipes */
271	if (sc->sc_intr_in_pipe != NULL) {
272	usbd_close_pipe(sc->sc_intr_in_pipe);
273	sc->sc_intr_in_pipe = NULL;
274	}
275
276	if (sc->sc_bulk_out_pipe != NULL) {
277	usbd_close_pipe(sc->sc_bulk_out_pipe);
278	sc->sc_intr_in_pipe = NULL;
279	}
280
281	return (0);
282	}
283
284	/*
285	* Open endpoint device
286	* XXX FIXME softc locking
287	*/
288
289	static int
290	ubtbcmfw_open(struct cdev dev, int flag, int mode, struct thread p)
291	{
292	ubtbcmfw_softc_p sc = NULL;
293	int error = 0;
294
295	/* checks for sc != NULL */
296	sc = devclass_get_softc(ubtbcmfw_devclass, UBTBCMFW_UNIT(dev));
297	if (sc == NULL)
298	return (ENXIO);
299	if (sc->sc_dying)
300	return (ENXIO);
301
302	switch (UBTBCMFW_ENDPOINT(dev)) {
303	case USB_CONTROL_ENDPOINT:
304	if (!(sc->sc_flags & UBTBCMFW_CTRL_DEV))
305	sc->sc_flags \|= UBTBCMFW_CTRL_DEV;
306	else
307	error = EBUSY;
308	break;
309
310	case UBTBCMFW_INTR_IN:
311	if (!(sc->sc_flags & UBTBCMFW_INTR_IN_DEV)) {
312	if (sc->sc_intr_in_pipe != NULL)
313	sc->sc_flags \|= UBTBCMFW_INTR_IN_DEV;
314	else
315	error = ENXIO;
316	} else
317	error = EBUSY;
318	break;
319
320	case UBTBCMFW_BULK_OUT:
321	if (!(sc->sc_flags & UBTBCMFW_BULK_OUT_DEV)) {
322	if (sc->sc_bulk_out_pipe != NULL)
323	sc->sc_flags \|= UBTBCMFW_BULK_OUT_DEV;
324	else
325	error = ENXIO;
326	} else
327	error = EBUSY;
328	break;
329
330	default:
331	error = ENXIO;
332	break;
333	}
334
335	return (error);
336	}
337
338	/*
339	* Close endpoint device
340	* XXX FIXME softc locking
341	*/
342
343	static int
344	ubtbcmfw_close(struct cdev dev, int flag, int mode, struct thread p)
345	{
346	ubtbcmfw_softc_p sc = NULL;
347
348	sc = devclass_get_softc(ubtbcmfw_devclass, UBTBCMFW_UNIT(dev));
349	if (sc == NULL)
350	return (ENXIO);
351
352	switch (UBTBCMFW_ENDPOINT(dev)) {
353	case USB_CONTROL_ENDPOINT:
354	sc->sc_flags &= ~UBTBCMFW_CTRL_DEV;
355	break;
356
357	case UBTBCMFW_INTR_IN:
358	if (sc->sc_intr_in_pipe != NULL)
359	usbd_abort_pipe(sc->sc_intr_in_pipe);
360
361	sc->sc_flags &= ~UBTBCMFW_INTR_IN_DEV;
362	break;
363
364	case UBTBCMFW_BULK_OUT:
365	if (sc->sc_bulk_out_pipe != NULL)
366	usbd_abort_pipe(sc->sc_bulk_out_pipe);
367
368	sc->sc_flags &= ~UBTBCMFW_BULK_OUT_DEV;
369	break;
370	}
371
372	return (0);
373	}
374
375	/*
376	* Read from the endpoint device
377	* XXX FIXME softc locking
378	*/
379
380	static int
381	ubtbcmfw_read(struct cdev dev, struct uio uio, int flag)
382	{
383	ubtbcmfw_softc_p sc = NULL;
384	u_int8_t buf[UBTBCMFW_BSIZE];
385	usbd_xfer_handle xfer;
386	usbd_status err;
387	int n, tn, error = 0;
388
389	sc = devclass_get_softc(ubtbcmfw_devclass, UBTBCMFW_UNIT(dev));
390	if (sc == NULL \|\| sc->sc_dying)
391	return (ENXIO);
392
393	if (UBTBCMFW_ENDPOINT(dev) != UBTBCMFW_INTR_IN)
394	return (EOPNOTSUPP);
395	if (sc->sc_intr_in_pipe == NULL)
396	return (ENXIO);
397
398	xfer = usbd_alloc_xfer(sc->sc_udev);
399	if (xfer == NULL)
400	return (ENOMEM);
401
402	sc->sc_refcnt ++;
403
e54488bb	404	while ((n = (int)szmin(sizeof(buf), uio->uio_resid)) != 0) {
b06ebda0 MD	405	tn = n;
	406	err = usbd_bulk_transfer(xfer, sc->sc_intr_in_pipe,
	407	USBD_SHORT_XFER_OK, USBD_DEFAULT_TIMEOUT,
	408	buf, &tn, "bcmrd");
	409	switch (err) {
	410	case USBD_NORMAL_COMPLETION:
e54488bb	411	error = uiomove(buf, (size_t)tn, uio);
b06ebda0 MD	412	break;
	413
	414	case USBD_INTERRUPTED:
	415	error = EINTR;
	416	break;
	417
	418	case USBD_TIMEOUT:
	419	error = ETIMEDOUT;
	420	break;
	421
	422	default:
	423	error = EIO;
	424	break;
	425	}
	426
	427	if (error != 0 \|\| tn < n)
	428	break;
	429	}
	430
	431	usbd_free_xfer(xfer);
	432
	433	if (-- sc->sc_refcnt < 0)
	434	usb_detach_wakeup(sc->sc_dev);
	435
	436	return (error);
	437	}
	438
	439	/*
	440	* Write into the endpoint device
	441	* XXX FIXME softc locking
	442	*/
	443
	444	static int
	445	ubtbcmfw_write(struct cdev dev, struct uio uio, int flag)
	446	{
	447	ubtbcmfw_softc_p sc = NULL;
	448	u_int8_t buf[UBTBCMFW_BSIZE];
	449	usbd_xfer_handle xfer;
	450	usbd_status err;
	451	int n, error = 0;
	452
	453	sc = devclass_get_softc(ubtbcmfw_devclass, UBTBCMFW_UNIT(dev));
	454	if (sc == NULL \|\| sc->sc_dying)
	455	return (ENXIO);
	456
	457	if (UBTBCMFW_ENDPOINT(dev) != UBTBCMFW_BULK_OUT)
	458	return (EOPNOTSUPP);
	459	if (sc->sc_bulk_out_pipe == NULL)
	460	return (ENXIO);
	461
	462	xfer = usbd_alloc_xfer(sc->sc_udev);
	463	if (xfer == NULL)
	464	return (ENOMEM);
	465
	466	sc->sc_refcnt ++;
	467
e54488bb MD	468	while ((n = (int)szmin(sizeof(buf), uio->uio_resid)) != 0) {
e54488bb MD	469	error = uiomove(buf, (size_t)n, uio);
b06ebda0 MD	470	if (error != 0)
	471	break;
	472
	473	err = usbd_bulk_transfer(xfer, sc->sc_bulk_out_pipe,
	474	0, USBD_DEFAULT_TIMEOUT, buf, &n, "bcmwr");
	475	switch (err) {
	476	case USBD_NORMAL_COMPLETION:
	477	break;
	478
	479	case USBD_INTERRUPTED:
	480	error = EINTR;
	481	break;
	482
	483	case USBD_TIMEOUT:
	484	error = ETIMEDOUT;
	485	break;
	486
	487	default:
	488	error = EIO;
	489	break;
	490	}
	491
	492	if (error != 0)
	493	break;
	494	}
	495
	496	usbd_free_xfer(xfer);
	497
	498	if (-- sc->sc_refcnt < 0)
	499	usb_detach_wakeup(sc->sc_dev);
	500
	501	return (error);
	502	}
	503
	504	/*
	505	* Process ioctl on the endpoint device
	506	* XXX FIXME softc locking
	507	*/
	508
	509	static int
	510	ubtbcmfw_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag,
	511	struct thread *p)
	512	{
	513	ubtbcmfw_softc_p sc = NULL;
	514	int error = 0;
	515
	516	sc = devclass_get_softc(ubtbcmfw_devclass, UBTBCMFW_UNIT(dev));
	517	if (sc == NULL \|\| sc->sc_dying)
	518	return (ENXIO);
	519
	520	if (UBTBCMFW_ENDPOINT(dev) != USB_CONTROL_ENDPOINT)
	521	return (EOPNOTSUPP);
	522
	523	sc->sc_refcnt ++;
	524
	525	switch (cmd) {
	526	case USB_GET_DEVICE_DESC:
	527	(usb_device_descriptor_t ) data =
	528	*usbd_get_device_descriptor(sc->sc_udev);
	529	break;
	530
	531	default:
	532	error = EINVAL;
	533	break;
534	}
535
536	if (-- sc->sc_refcnt < 0)
537	usb_detach_wakeup(sc->sc_dev);
538
539	return (error);
540	}
541
542	/*
543	* Poll the endpoint device
544	* XXX FIXME softc locking
545	*/
546
547	static int
548	ubtbcmfw_poll(struct cdev dev, int events, struct thread p)
549	{
550	ubtbcmfw_softc_p sc = NULL;
551	int revents = 0;
552
553	sc = devclass_get_softc(ubtbcmfw_devclass, UBTBCMFW_UNIT(dev));
554	if (sc == NULL)
555	return (ENXIO);
556
557	switch (UBTBCMFW_ENDPOINT(dev)) {
558	case UBTBCMFW_INTR_IN:
559	if (sc->sc_intr_in_pipe != NULL)
560	revents \|= events & (POLLIN \| POLLRDNORM);
561	else
562	revents = ENXIO;
563	break;
564
565	case UBTBCMFW_BULK_OUT:
566	if (sc->sc_bulk_out_pipe != NULL)
567	revents \|= events & (POLLOUT \| POLLWRNORM);
568	else
569	revents = ENXIO;
570	break;
571
572	default:
573	revents = EOPNOTSUPP;
574	break;
575	}
576
577	return (revents);
578	}