/*      $NetBSD: sgecvar.h,v 1.9 2017/05/22 17:23:49 ragge Exp $ */
/*
* Copyright (c) 1999 Ludd, University of Lule}, Sweden. 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 AUTHOR ``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 AUTHOR 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 _DEV_IC_SGECVAR_H_
#define _DEV_IC_SGECVAR_H_

#define RXDESCS 30      /* # of receive descriptors */
#define TXDESCS 60      /* # transmit descs */

/*
* Descriptors must be an even number; optimisation thing.
*/
struct ze_cdata {
       struct ze_rdes  zc_recv[RXDESCS+2];     /* Receive descriptors */
       struct ze_tdes  zc_xmit[TXDESCS+2];     /* Transmit descriptors */
       u_int8_t        zc_setup[128];          /* Setup packet layout */
};

struct  ze_softc {
       device_t        sc_dev;         /* Configuration common part    */
       struct evcnt    sc_intrcnt;     /* Interrupt counters           */
       struct evcnt    sc_rxintrcnt;   /* Interrupt counters           */
       struct evcnt    sc_txintrcnt;   /* Interrupt counters           */
       struct evcnt    sc_txdraincnt;  /* Interrupt counters           */
       struct evcnt    sc_nobufintrcnt; /* Interrupt counters          */
       struct evcnt    sc_nointrcnt;   /* Interrupt counters           */
       struct ethercom sc_ec;          /* Ethernet common part         */
#define sc_if   sc_ec.ec_if             /* network-visible interface    */
       bus_space_tag_t sc_iot;
       bus_addr_t      sc_ioh;
       bus_dma_tag_t   sc_dmat;
       struct ze_cdata *sc_zedata;     /* Descriptor struct            */
       struct ze_cdata *sc_pzedata;    /* Physical address of above    */
       bus_dmamap_t    sc_cmap;        /* Map for control structures   */
       struct mbuf*    sc_txmbuf[TXDESCS];
       struct mbuf*    sc_rxmbuf[RXDESCS];
       bus_dmamap_t    sc_xmtmap[TXDESCS];
       bus_dmamap_t    sc_rcvmap[RXDESCS];
       int             sc_intvec;      /* Interrupt vector             */
       int             sc_nexttx;
       int             sc_txcnt;
       int             sc_inq;
       int             sc_lastack;
       int             sc_nextrx;
       int             sc_setup;       /* Setup packet in queue        */
       u_int8_t        sc_enaddr[ETHER_ADDR_LEN];
};

void    sgec_attach(struct ze_softc *);
int     sgec_intr(struct ze_softc *);

#endif /* _DEV_IC_SGECVAR_H_ */