/*      $OpenBSD: if_urndisreg.h,v 1.19 2013/11/21 14:08:05 mpi Exp $ */

/*
 * Copyright (c) 2010 Jonathan Armani <armani@openbsd.org>
 * Copyright (c) 2010 Fabien Romano <fabien@openbsd.org>
 * Copyright (c) 2010 Michael Knudsen <mk@openbsd.org>
 * All rights reserved.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _IF_URNDISREG_H_
#define _IF_URNDISREG_H_

#define RNDIS_RESPONSE_LEN      1024    /* bytes */
#define RNDIS_RX_MAXLEN         (16 * 1024)
#define RNDIS_TX_FRAMES_MAX     8
#define RNDIS_TX_MAXLEN         MCLBYTES

enum {
        URNDIS_BULK_RX,
        URNDIS_BULK_TX,
        URNDIS_INTR_RX,
        URNDIS_N_TRANSFER,
};

struct urndis_softc {
        struct usb_ether sc_ue;
        struct mtx sc_mtx;

        /* RNDIS device info */
        uint32_t sc_lim_pktsz;
        uint32_t sc_filter;

        struct usb_device *sc_udev;
        struct usb_xfer *sc_xfer[URNDIS_N_TRANSFER];

        uint8_t sc_ifaceno_ctl;
        uint8_t sc_response_buf[RNDIS_RESPONSE_LEN] __aligned(4);
};

#define URNDIS_LOCK(sc) mtx_lock(&(sc)->sc_mtx)
#define URNDIS_UNLOCK(sc) mtx_unlock(&(sc)->sc_mtx)
#define URNDIS_LOCK_ASSERT(sc, what) mtx_assert(&(sc)->sc_mtx, (what))

#endif                                  /* _IF_URNDISREG_H_ */