* Copyright (c) 1996 The NetBSD Foundation, Inc.

/* $NetBSD: if_le.c,v 1.18 2010/01/19 22:06:22 pooka Exp $ */

/*-
* Copyright (c) 1996 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Adam Glass and Gordon W. Ross.
*
* 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.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.18 2010/01/19 22:06:22 pooka 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 <machine/cpu.h>
#include <machine/adrsmap.h>

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

#include <newsmips/dev/hbvar.h>

/*
* LANCE registers.
* The real stuff is in dev/ic/am7990reg.h
*/
struct lereg1 {
volatile uint16_t ler1_rdp; /* data port */
volatile uint16_t ler1_rap; /* register select port */
};

/*
* Ethernet software status per interface.
* The real stuff is in dev/ic/am7990var.h
*/
struct le_softc {
struct am7990_softc sc_am7990; /* glue to MI code */

struct lereg1 *sc_r1; /* LANCE registers */
};

static int le_match(device_t, cfdata_t, void *);
static void le_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(le, sizeof(struct le_softc),
le_match, le_attach, NULL, NULL);

#if defined(_KERNEL_OPT)
#include "opt_ddb.h"
#endif

#ifdef DDB
#define integrate
#define hide
#else
#define integrate static inline
#define hide static
#endif

hide void lewrcsr(struct lance_softc *, uint16_t, uint16_t);
hide uint16_t lerdcsr(struct lance_softc *, uint16_t);

hide void
lewrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
{
struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;

ler1->ler1_rap = port;
ler1->ler1_rdp = val;
}

hide uint16_t
lerdcsr(struct lance_softc *sc, uint16_t port)
{
struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
uint16_t val;

ler1->ler1_rap = port;
val = ler1->ler1_rdp;
return val;
}

int
le_match(device_t parent, cfdata_t cf, void *aux)
{
struct hb_attach_args *ha = aux;

if (strcmp(ha->ha_name, "le"))
return 0;

if (hb_badaddr((void *)ha->ha_addr, 1)) /* XXX */
return 0;

return 1;
}

void
le_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 hb_attach_args *ha = aux;
int intlevel, intmask;
uint8_t *p;

sc->sc_dev = self;
intlevel = ha->ha_level;
if (intlevel == -1) {
aprint_error(": interrupt level not configured\n");
return;
}
aprint_normal(" level %d", intlevel);

switch (ha->ha_addr) {

case LANCE_PORT:
sc->sc_mem = (void *)LANCE_MEMORY;
p = (uint8_t *)(ETHER_ID + 16);
intmask = INTST1_LANCE;
break;
case LANCE_PORT1:
sc->sc_mem = (void *)LANCE_MEMORY1;
p = (uint8_t *)(ETHER_ID1 + 16);
intmask = INTST1_SLOT3; /* XXX not tested */
break;
case LANCE_PORT2:
sc->sc_mem = (void *)LANCE_MEMORY2;
p = (uint8_t *)(ETHER_ID2 + 16);
intmask = INTST1_SLOT3; /* XXX not tested */
break;

default:
aprint_error(": unknown LANCE addr\n");
return;
}

lesc->sc_r1 = (void *)ha->ha_addr;

sc->sc_memsize = 0x4000; /* 16K */
sc->sc_addr = (int)sc->sc_mem & 0x00ffffff;
sc->sc_conf3 = LE_C3_BSWP|LE_C3_BCON;

sc->sc_enaddr[0] = (*p++ << 4);
sc->sc_enaddr[0] |= *p++ & 0x0f;
sc->sc_enaddr[1] = (*p++ << 4);
sc->sc_enaddr[1] |= *p++ & 0x0f;
sc->sc_enaddr[2] = (*p++ << 4);
sc->sc_enaddr[2] |= *p++ & 0x0f;
sc->sc_enaddr[3] = (*p++ << 4);
sc->sc_enaddr[3] |= *p++ & 0x0f;
sc->sc_enaddr[4] = (*p++ << 4);
sc->sc_enaddr[4] |= *p++ & 0x0f;
sc->sc_enaddr[5] = (*p++ << 4);
sc->sc_enaddr[5] |= *p++ & 0x0f;

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;

sc->sc_rdcsr = lerdcsr;
sc->sc_wrcsr = lewrcsr;
sc->sc_hwinit = NULL;

am7990_config(&lesc->sc_am7990);
hb_intr_establish(intlevel, intmask, IPL_NET, am7990_intr, sc);
}