/*      $OpenBSD: if_urndisreg.h,v 1.21 2025/12/14 00:00:39 canacar 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.
 */

#define RNDIS_RX_LIST_CNT       1
#define RNDIS_TX_LIST_CNT       1
#define RNDIS_BUFSZ             0x4000

struct urndis_chain {
        struct urndis_softc     *sc_softc;
        struct usbd_xfer        *sc_xfer;
        char                    *sc_buf;
        struct mbuf             *sc_mbuf;
        int                      sc_idx;
};

struct urndis_cdata {
        struct urndis_chain     sc_rx_chain[RNDIS_RX_LIST_CNT];
        struct urndis_chain     sc_tx_chain[RNDIS_TX_LIST_CNT];
        int                     sc_tx_cnt;
};

#define GET_IFP(sc) (&(sc)->sc_arpcom.ac_if)
struct urndis_softc {
        struct device                   sc_dev;

        char                            sc_attached;
        struct arpcom                   sc_arpcom;

        /* RNDIS device info */
        u_int32_t                       sc_lim_pktsz;
        u_int32_t                       sc_filter;

        /* USB goo */
        struct usbd_device              *sc_udev;
        int                             sc_ifaceno_ctl;
        struct usbd_interface           *sc_iface_data;

        struct timeval                  sc_rx_notice;
        int                             sc_bulkin_no;
        struct usbd_pipe                *sc_bulkin_pipe;
        int                             sc_bulkout_no;
        struct usbd_pipe                *sc_bulkout_pipe;

        struct urndis_cdata             sc_data;
};