/*      $NetBSD: if_cemacvar.h,v 1.7 2024/10/15 00:58:15 lloyd Exp $    */
/*-
* Copyright (c) 2015  Genetec Corporation.  All rights reserved.
* Written by Hashimoto Kenichi for Genetec Corporation.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 _IF_CEMACVAR_H_
#define _IF_CEMACVAR_H_

#include <net/if.h>
#include <net/if_media.h>
#include <net/if_ether.h>
#include <net/if_media.h>

#include <dev/mii/miivar.h>

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

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

struct cemac_softc {
       device_t                sc_dev;
       bus_space_tag_t         sc_iot;
       bus_space_handle_t      sc_ioh;
       bus_dma_tag_t           sc_dmat;
       uint8_t                 sc_enaddr[ETHER_ADDR_LEN];
       struct ethercom         sc_ethercom;
       mii_data_t              sc_mii;
       int                     sc_phyno;

       void                    *rbqpage;
       unsigned                rbqlen;
       bus_addr_t              rbqpage_dsaddr;
       bus_dmamap_t            rbqpage_dmamap;
       void                    *tbqpage;
       unsigned                tbqlen;
       bus_addr_t              tbqpage_dsaddr;
       bus_dmamap_t            tbqpage_dmamap;

       volatile struct eth_dsc *RDSC;
       int                     rxqi;
       struct cemac_qmeta      rxq[RX_QLEN];
       volatile struct eth_dsc *TDSC;
       int                     txqi, txqc;
       struct cemac_qmeta      txq[TX_QLEN];
       callout_t               cemac_tick_ch;

       unsigned                cemac_flags;
#define CEMAC_FLAG_GEM  __BIT(0)

       kmutex_t *sc_mcast_lock;        /* m: lock for SIOCADD/DELMULTI */
       kmutex_t *sc_intr_lock;         /* i: lock for interrupt operations */

       u_short sc_if_flags;            /* m: if_flags cache */
       time_t sc_tx_lastsent;          /* i: time of last tx */
       bool sc_txbusy;                 /* i: no Tx because down or busy */
       bool sc_stopping;               /* i: ignore intr because down */
       bool sc_tx_sending;             /* i: expecting tx complete irq */
       bool sc_trigger_reset;          /* i */

       struct workqueue *sc_reset_wq;
       struct work sc_reset_work;      /* i */
       volatile unsigned sc_reset_pending;
};

int cemac_intr(void *);

void cemac_attach_common(struct cemac_softc *);


#endif /* _IF_CEMACVAR_H_ */