/* $NetBSD: if_le.c,v 1.47 2023/08/01 21:26:27 andvar Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
* Simulation Facility, NASA Ames Research Center.
*
* 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.
*/
/*-
* Copyright (c) 1997 Bernd Ernesti. All rights reserved.
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell and Rick Macklem.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project
* by Bernd Ernesti.
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* 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.
*
* @(#)if_le.c 8.2 (Berkeley) 11/16/93
*/
#include "opt_inet.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.47 2023/08/01 21:26:27 andvar Exp $");
#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 <amiga/amiga/device.h>
#include <amiga/amiga/isr.h>
#include <dev/ic/lancereg.h>
#include <dev/ic/lancevar.h>
#include <dev/ic/am7990reg.h>
#include <dev/ic/am7990var.h>
#include <amiga/dev/zbusvar.h>
#include <amiga/dev/if_levar.h>
int le_zbus_match(device_t, cfdata_t, void *);
void le_zbus_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(le_zbus, sizeof(struct le_softc),
le_zbus_match, le_zbus_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 lepcnet_reset(struct lance_softc *);
hide void lewrcsr(struct lance_softc *, u_int16_t, u_int16_t);
hide u_int16_t lerdcsr(struct lance_softc *, u_int16_t);
hide u_int16_t ariadne_swapreg(u_int16_t);
hide void ariadne_wrcsr(struct lance_softc *, u_int16_t, u_int16_t);
hide u_int16_t ariadne_rdcsr(struct lance_softc *, u_int16_t);
hide void ariadne_wribcr(struct lance_softc *, u_int16_t, u_int16_t);
integrate void ariadne_copytodesc_word(struct lance_softc *, void *, int, int);
integrate void ariadne_copyfromdesc_word(struct lance_softc *, void *,
int, int);
integrate void ariadne_copytobuf_word(struct lance_softc *, void *, int, int);
integrate void ariadne_copyfrombuf_word(struct lance_softc *, void *, int, int);
integrate void ariadne_zerobuf_word(struct lance_softc *, int, int);
void ariadne_autoselect(struct lance_softc *, int);
int ariadne_mediachange(struct lance_softc *);
void ariadne_hwinit(struct lance_softc *);
/*
* Media types supported by the Ariadne.
*/
int lemedia_ariadne[] = {
IFM_ETHER | IFM_10_T,
IFM_ETHER | IFM_10_2,
IFM_ETHER | IFM_AUTO,
};
#define NLEMEDIA_ARIADNE __arraycount(lemedia_ariadne)
hide u_int16_t
ariadne_swapreg(u_int16_t val)
{
return (((val & 0xff) << 8 ) | (( val >> 8) & 0xff));
}
hide void
ariadne_wrcsr(struct lance_softc *sc, u_int16_t port, u_int16_t val)
{
struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
ler1->ler1_rap = ariadne_swapreg(port);
ler1->ler1_rdp = ariadne_swapreg(val);
}
hide u_int16_t
ariadne_rdcsr(struct lance_softc *sc, u_int16_t port)
{
struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
u_int16_t val;
ler1->ler1_rap = ariadne_swapreg(port);
val = ariadne_swapreg(ler1->ler1_rdp);
return (val);
}
hide void
ariadne_wribcr(struct lance_softc *sc, u_int16_t port, u_int16_t val)
{
struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
ler1->ler1_rap = ariadne_swapreg(port);
ler1->ler1_idp = ariadne_swapreg(val);
}
hide void
lewrcsr(struct lance_softc *sc, u_int16_t port, u_int16_t val)
{
struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
ler1->ler1_rap = port;
ler1->ler1_rdp = val;
}
hide u_int16_t
lerdcsr(struct lance_softc *sc, u_int16_t port)
{
struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
u_int16_t val;
ler1->ler1_rap = port;
val = ler1->ler1_rdp;
return (val);
}
hide void
lepcnet_reset(struct lance_softc *sc)
{
struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
volatile int dummy;
dummy = ler1->ler1_reset; /* Reset PCNet-ISA */
__USE(dummy);
}
void
ariadne_autoselect(struct lance_softc *sc, int on)
{
/*
* on = 0: autoselect disabled
* on = 1: autoselect enabled
*/
if (on == 0)
ariadne_wribcr(sc, LE_BCR_MC, 0x0000);
else
ariadne_wribcr(sc, LE_BCR_MC, LE_MC_ASEL);
}
int
ariadne_mediachange(struct lance_softc *sc)
{
struct ifmedia *ifm = &sc->sc_media;
if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
return (EINVAL);
/*
* Switch to the selected media. If autoselect is
* set, switch it on otherwise disable it. We'll
* switch to the other media when we detect loss of
* carrier.
*/
switch (IFM_SUBTYPE(ifm->ifm_media)) {
case IFM_10_T:
sc->sc_initmodemedia = 1;
lance_init(&sc->sc_ethercom.ec_if);
break;
case IFM_10_2:
sc->sc_initmodemedia = 0;
lance_init(&sc->sc_ethercom.ec_if);
break;
case IFM_AUTO:
sc->sc_initmodemedia = 2;
ariadne_hwinit(sc);
break;
default:
return (EINVAL);
}
return (0);
}
void
ariadne_hwinit(struct lance_softc *sc)
{
/*
* Re-program LEDs to match meaning used on the Ariadne board.
*/
ariadne_wribcr(sc, LE_BCR_LED1, 0x0090);
ariadne_wribcr(sc, LE_BCR_LED2, 0x0081);
ariadne_wribcr(sc, LE_BCR_LED3, 0x0084);
/*
* Enable/Disable auto selection
*/
if (sc->sc_initmodemedia == 2)
ariadne_autoselect(sc, 1);
else
ariadne_autoselect(sc, 0);
}
int
le_zbus_match(device_t parent, cfdata_t cfp, void *aux)
{
struct zbus_args *zap = aux;
/* Commodore ethernet card */
if (zap->manid == 514 && zap->prodid == 112)
return (1);
/* Ameristar ethernet card */
if (zap->manid == 1053 && zap->prodid == 1)
return (1);
/* Ariadne ethernet card */
if (zap->manid == 2167 && zap->prodid == 201)
return (1);
return (0);
}
void
le_zbus_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 zbus_args *zap = aux;
u_long ser;
sc->sc_dev = self;
/* This has no effect on PCnet-ISA LANCE chips */
sc->sc_conf3 = LE_C3_BSWP;
/*
* Manufacturer decides the 3 first bytes, i.e. ethernet vendor ID.
*/
switch (zap->manid) {
case 514:
/* Commodore */
sc->sc_memsize = 32768;
sc->sc_enaddr[0] = 0x00;
sc->sc_enaddr[1] = 0x80;
sc->sc_enaddr[2] = 0x10;
lesc->sc_r1 = (struct lereg1 *)(0x4000 + (int)zap->va);
sc->sc_mem = (void *)(0x8000 + (int)zap->va);
sc->sc_addr = 0x8000;
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_hwreset = NULL;
sc->sc_hwinit = NULL;
break;
case 1053:
/* Ameristar */
sc->sc_memsize = 32768;
sc->sc_enaddr[0] = 0x00;
sc->sc_enaddr[1] = 0x00;
sc->sc_enaddr[2] = 0x9f;
lesc->sc_r1 = (struct lereg1 *)(0x4000 + (int)zap->va);
sc->sc_mem = (void *)(0x8000 + (int)zap->va);
sc->sc_addr = 0x8000;
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_hwreset = NULL;
sc->sc_hwinit = NULL;
break;
case 2167:
/* Village Tronic */
sc->sc_memsize = 32768;
sc->sc_enaddr[0] = 0x00;
sc->sc_enaddr[1] = 0x60;
sc->sc_enaddr[2] = 0x30;
lesc->sc_r1 = (struct lereg1 *)(0x0370 + (int)zap->va);
sc->sc_mem = (void *)(0x8000 + (int)zap->va);
sc->sc_addr = 0x8000;
sc->sc_copytodesc = ariadne_copytodesc_word;
sc->sc_copyfromdesc = ariadne_copyfromdesc_word;
sc->sc_copytobuf = ariadne_copytobuf_word;
sc->sc_copyfrombuf = ariadne_copyfrombuf_word;
sc->sc_zerobuf = ariadne_zerobuf_word;
sc->sc_rdcsr = ariadne_rdcsr;
sc->sc_wrcsr = ariadne_wrcsr;
sc->sc_hwreset = lepcnet_reset;
sc->sc_hwinit = ariadne_hwinit;
sc->sc_mediachange = ariadne_mediachange;
sc->sc_supmedia = lemedia_ariadne;
sc->sc_nsupmedia = NLEMEDIA_ARIADNE;
sc->sc_defaultmedia = IFM_ETHER | IFM_AUTO;
sc->sc_initmodemedia = 2;
break;
default:
panic("le_zbus_attach: bad manid");
}
/*
* Serial number for board is used as host ID.
*/
ser = (u_long)zap->serno;
sc->sc_enaddr[3] = (ser >> 16) & 0xff;
sc->sc_enaddr[4] = (ser >> 8) & 0xff;
sc->sc_enaddr[5] = (ser ) & 0xff;
am7990_config(&lesc->sc_am7990);
lesc->sc_isr.isr_intr = am7990_intr;
lesc->sc_isr.isr_arg = sc;
lesc->sc_isr.isr_ipl = 2;
add_isr(&lesc->sc_isr);
}
integrate void
ariadne_copytodesc_word(struct lance_softc *sc, void *from, int boff, int len)
{
u_short *b1 = from;
volatile u_short *b2 = (u_short *)((u_char *)sc->sc_mem + boff);
for (len >>= 1; len > 0; len--)
*b2++ = ariadne_swapreg(*b1++);
}
integrate void
ariadne_copyfromdesc_word(struct lance_softc *sc, void *to, int boff, int len)
{
volatile u_short *b1 = (u_short *)((u_char *)sc->sc_mem + boff);
u_short *b2 = to;
for (len >>= 1; len > 0; len--)
*b2++ = ariadne_swapreg(*b1++);
}
#define isodd(n) ((n) & 1)
integrate void
ariadne_copytobuf_word(struct lance_softc *sc, void *from, int boff, int len)
{
u_char *a1 = from;
volatile u_char *a2 = (u_char *)sc->sc_mem + boff;
u_short *b1;
volatile u_short *b2;
int i;
if (len > 0 && isodd(boff)) {
/* adjust source pointer */
b1 = (u_short *)(a1 + 1);
/* compute aligned destination pointer */
b2 = (volatile u_short *)(a2 + 1);
/* copy first unaligned byte to buf */
b2[-1] = (b2[-1] & 0xff00) | *a1;
--len;
} else {
/* destination is aligned or length is zero */
b1 = (u_short *)a1;
b2 = (volatile u_short *)a2;
}
/* copy full words with aligned destination */
for (i = len >> 1; i > 0; i--)
*b2++ = *b1++;
/* copy remaining byte */
if (isodd(len))
*b2 = (*b2 & 0x00ff) | (*(u_char *)b1) << 8;
}
integrate void
ariadne_copyfrombuf_word(struct lance_softc *sc, void *to, int boff, int len)
{
volatile u_char *a1 = (u_char *)sc->sc_mem + boff;
u_char *a2 = to;
volatile u_short *b1;
u_short *b2;
int i;
if (len > 0 && isodd(boff)) {
/* compute aligned source pointer */
b1 = (volatile u_short *)(a1 + 1);
/* adjust destination pointer (possibly unaligned) */
b2 = (u_short *)(a2 + 1);
/* copy first unaligned byte from buf */
*a2 = b1[-1];
--len;
} else {
/* source is aligned or length is zero */
b1 = (volatile u_short *)a1;
b2 = (u_short *)a2;
}
/* copy full words with aligned source */
for (i = len >> 1; i > 0; i--)
*b2++ = *b1++;
/* copy remaining byte */
if (isodd(len))
*(u_char *)b2 = *b1 >> 8;
}
integrate void
ariadne_zerobuf_word(struct lance_softc *sc, int boff, int len)
{
volatile u_char *a1 = (u_char *)sc->sc_mem + boff;
volatile u_short *b1;
int i;
if (len > 0 && isodd(boff)) {
b1 = (volatile u_short *)(a1 + 1);
b1[-1] &= 0xff00;
--len;
} else {
b1 = (volatile u_short *)a1;
}
for (i = len >> 1; i > 0; i--)
*b1++ = 0;
if (isodd(len))
*b1 &= 0x00ff;
}
