/*      $Id: at91emacvar.h,v 1.4 2022/09/17 19:32:01 thorpej Exp $      */
/*      $NetBSD: at91emacvar.h,v 1.4 2022/09/17 19:32:01 thorpej Exp $  */
/*-
 * Copyright (c) 2007 Embedtronics Oy
 * All rights reserved
 *
 * Based on arch/arm/ep93xx/epevar.h
 *
 * Copyright (c) 2004 Jesse Off
 * 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 REGENTS 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 REGENTS 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.
 *
 */

#ifndef _AT91EMACVAR_H_
#define _AT91EMACVAR_H_

#define RX_QLEN 64
#define TX_QLEN 2               /* I'm very sorry but that's where we can get */

struct emac_qmeta {
        struct mbuf     *m;
        bus_dmamap_t    m_dmamap;
};

struct emac_softc {
        device_t                sc_dev;
        bus_space_tag_t         sc_iot;
        bus_space_handle_t      sc_ioh;
        bus_dma_tag_t           sc_dmat;
        int                     sc_pid;
        uint8_t                 sc_enaddr[ETHER_ADDR_LEN];
        struct ethercom         sc_ec;
        mii_data_t              sc_mii;
        void                    *rbqpage;
        unsigned                rbqlen;
        bus_addr_t              rbqpage_dsaddr;
        bus_dmamap_t            rbqpage_dmamap;

        volatile struct eth_rdsc *RDSC;
        int                     rxqi;
        struct emac_qmeta       rxq[RX_QLEN];
        int                     txqi, txqc;
        struct emac_qmeta       txq[TX_QLEN];
        callout_t               emac_tick_ch;
        bool                    tx_busy;
};

#endif /* _AT91EMACVAR_H_ */