/*      $NetBSD: if_le_tc.c,v 1.23 2022/02/23 21:54:41 andvar Exp $     */

/*
* Copyright (c) 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
*  Software Distribution Coordinator  or  [email protected]
*  School of Computer Science
*  Carnegie Mellon University
*  Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/

/*
* LANCE on TURBOchannel.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_le_tc.c,v 1.23 2022/02/23 21:54:41 andvar Exp $");

#include "opt_inet.h"

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/syslog.h>
#include <sys/socket.h>
#include <sys/device.h>

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

#ifdef INET
#include <netinet/in.h>
#include <netinet/if_inarp.h>
#endif

#include <dev/ic/lancereg.h>
#include <dev/ic/lancevar.h>
#include <dev/ic/am7990reg.h>
#include <dev/ic/am7990var.h>

#include <dev/tc/if_levar.h>
#include <dev/tc/tcvar.h>

static int      le_tc_match(device_t, cfdata_t, void *);
static void     le_tc_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(le_tc, sizeof(struct le_softc),
   le_tc_match, le_tc_attach, NULL, NULL);

#define LE_OFFSET_RAM           0x0
#define LE_OFFSET_LANCE         0x100000
#define LE_OFFSET_ROM           0x1c0000

static int
le_tc_match(device_t parent, cfdata_t cf, void *aux)
{
       struct tc_attach_args *d = aux;

       if (strncmp("PMAD-AA ", d->ta_modname, TC_ROM_LLEN) != 0)
               return (0);

       return (1);
}

static void
le_tc_attach(device_t parent, device_t self, void *aux)
{
       struct le_softc *lesc = device_private(self);
       struct lance_softc *sc = &lesc->sc_am7990.lsc;
       struct tc_attach_args *d = aux;

       sc->sc_dev = self;

       /*
        * It's on the TURBOchannel proper, or a kn02
        * baseboard implementation of a TC option card.
        */
       lesc->sc_r1 = (struct lereg1 *)
           TC_DENSE_TO_SPARSE(TC_PHYS_TO_UNCACHED(d->ta_addr + LE_OFFSET_LANCE));
       sc->sc_mem = (void *)(d->ta_addr + LE_OFFSET_RAM);

       sc->sc_copytodesc = lance_copytobuf_contig;
       sc->sc_copyfromdesc = lance_copyfrombuf_contig;
       sc->sc_copytobuf = lance_copytobuf_contig;
       sc->sc_copyfrombuf = lance_copyfrombuf_contig;
       sc->sc_zerobuf = lance_zerobuf_contig;

       /*
        * TC lance boards have onboard SRAM buffers.  DMA
        * between the onboard RAM and main memory is not possible,
        * so  DMA setup is not required.
        */

       dec_le_common_attach(&lesc->sc_am7990,
                            (uint8_t *)(d->ta_addr + LE_OFFSET_ROM + 2));

       tc_intr_establish(parent, d->ta_cookie, TC_IPL_NET, am7990_intr, sc);
}