/*      $OpenBSD: if_cdcereg.h,v 1.9 2024/01/04 08:41:59 kevlo Exp $ */

/*
 * Copyright (c) 1997, 1998, 1999, 2000-2003 Bill Paul <wpaul@windriver.com>
 * Copyright (c) 2003 Craig Boston
 * Copyright (c) 2004 Daniel Hartmeier
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Bill Paul.
 * 4. Neither the name of the author nor the names of any co-contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul, THE VOICES IN HIS HEAD OR
 * THE 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.
 */

#define CDCE_RX_LIST_CNT        1
#define CDCE_TX_LIST_CNT        1
#define CDCE_BUFSZ              1542

struct cdce_type {
        struct usb_devno         cdce_dev;
        u_int16_t                cdce_flags;
#define CDCE_CRC32      1
#define CDCE_SWAPUNION  2
};

struct cdce_softc;

struct cdce_chain {
        struct cdce_softc       *cdce_sc;
        struct usbd_xfer        *cdce_xfer;
        char                    *cdce_buf;
        struct mbuf             *cdce_mbuf;
        int                      cdce_accum;
        int                      cdce_idx;
};

struct cdce_cdata {
        struct cdce_chain        cdce_rx_chain[CDCE_RX_LIST_CNT];
        struct cdce_chain        cdce_tx_chain[CDCE_TX_LIST_CNT];
        int                      cdce_tx_prod;
        int                      cdce_tx_cons;
        int                      cdce_tx_cnt;
        int                      cdce_rx_prod;
};

struct cdce_softc {
        struct device            cdce_dev;
        struct arpcom            cdce_arpcom;
#define GET_IFP(sc) (&(sc)->cdce_arpcom.ac_if)
        struct usbd_device      *cdce_udev;
        struct usbd_interface   *cdce_ctl_iface;
        int                      cdce_intr_no;
        struct usbd_pipe        *cdce_intr_pipe;
        struct usb_cdc_notification cdce_intr_buf;
        int                      cdce_intr_size;
        struct usbd_interface   *cdce_data_iface;
        int                      cdce_bulkin_no;
        struct usbd_pipe        *cdce_bulkin_pipe;
        int                      cdce_bulkout_no;
        struct usbd_pipe        *cdce_bulkout_pipe;
        struct cdce_cdata        cdce_cdata;
        int                      cdce_rxeof_errors;
        u_int16_t                cdce_flags;
        char                     cdce_attached;
};