NetBSD-5.0.2/sys/arch/hp300/dev/if_le.c
/* $NetBSD: if_le.c,v 1.61 2008/04/28 20:23:19 martin Exp $ */
/*-
* Copyright (c) 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.
*
* 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) 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. 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 <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.61 2008/04/28 20:23:19 martin Exp $");
#include "opt_inet.h"
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <net/if.h>
#include <net/if_ether.h>
#include <net/if_media.h>
#include <dev/ic/lancereg.h>
#include <dev/ic/lancevar.h>
#include <dev/ic/am7990var.h>
#include <hp300/dev/diovar.h>
#include <hp300/dev/diodevs.h>
#include <hp300/dev/if_lereg.h>
#include "opt_useleds.h"
#ifdef USELEDS
#include <hp300/hp300/leds.h>
#endif
struct le_softc {
struct am7990_softc sc_am7990; /* glue to MI code */
bus_space_tag_t sc_bst;
bus_space_handle_t sc_bsh0; /* DIO registers */
bus_space_handle_t sc_bsh1; /* LANCE registers */
bus_space_handle_t sc_bsh2; /* buffer area */
};
static int lematch(device_t, cfdata_t, void *);
static void leattach(device_t, device_t, void *);
CFATTACH_DECL_NEW(le, sizeof(struct le_softc),
lematch, leattach, NULL, NULL);
static int leintr(void *);
#if defined(_KERNEL_OPT)
#include "opt_ddb.h"
#endif
static void le_copytobuf(struct lance_softc *, void *, int, int);
static void le_copyfrombuf(struct lance_softc *, void *, int, int);
static void le_zerobuf(struct lance_softc *, int, int);
/* offsets for: ID, REGS, MEM, NVRAM */
static const int lestd[] = { 0, 0x4000, 0x8000, 0xC008 };
static void
lewrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
{
struct le_softc *lesc = (struct le_softc *)sc;
bus_space_tag_t bst = lesc->sc_bst;
bus_space_handle_t bsh0 = lesc->sc_bsh0;
bus_space_handle_t bsh1 = lesc->sc_bsh1;
do {
bus_space_write_2(bst, bsh1, LER1_RAP, port);
} while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0);
do {
bus_space_write_2(bst, bsh1, LER1_RDP, val);
} while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0);
}
static uint16_t
lerdcsr(struct lance_softc *sc, uint16_t port)
{
struct le_softc *lesc = (struct le_softc *)sc;
bus_space_tag_t bst = lesc->sc_bst;
bus_space_handle_t bsh0 = lesc->sc_bsh0;
bus_space_handle_t bsh1 = lesc->sc_bsh1;
uint16_t val;
do {
bus_space_write_2(bst, bsh1, LER1_RAP, port);
} while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0);
do {
val = bus_space_read_2(bst, bsh1, LER1_RDP);
} while ((bus_space_read_1(bst, bsh0, LER0_STATUS) & LE_ACK) == 0);
return val;
}
static int
lematch(device_t parent, cfdata_t cf, void *aux)
{
struct dio_attach_args *da = aux;
if (da->da_id == DIO_DEVICE_ID_LAN)
return 1;
return 0;
}
/*
* Interface exists: make available by filling in network interface
* record. System will initialize the interface when it is ready
* to accept packets.
*/
static void
leattach(device_t parent, device_t self, void *aux)
{
struct le_softc *lesc = device_private(self);
struct lance_softc *sc = &lesc->sc_am7990.lsc;
struct dio_attach_args *da = aux;
bus_space_tag_t bst = da->da_bst;
bus_space_handle_t bsh0, bsh1, bsh2;
bus_size_t offset;
int i;
sc->sc_dev = self;
if (bus_space_map(bst, (bus_addr_t)dio_scodetopa(da->da_scode),
da->da_size, 0, &bsh0)) {
aprint_error(": can't map LANCE registers\n");
return;
}
if (bus_space_subregion(bst, bsh0, lestd[1], LER1_SIZE, &bsh1)) {
aprint_error(": can't subregion LANCE space\n");
return;
}
if (bus_space_subregion(bst, bsh0, lestd[2], LE_BUFSIZE, &bsh2)) {
aprint_error(": can't subregion buffer space\n");
return;
}
lesc->sc_bst = bst;
lesc->sc_bsh0 = bsh0;
lesc->sc_bsh1 = bsh1;
lesc->sc_bsh2 = bsh2;
bus_space_write_1(bst, bsh0, LER0_ID, 0xff);
DELAY(100);
sc->sc_conf3 = LE_C3_BSWP;
sc->sc_addr = 0;
sc->sc_memsize = LE_BUFSIZE;
/*
* Read the ethernet address off the board, one nibble at a time.
*/
offset = lestd[3];
for (i = 0; i < sizeof(sc->sc_enaddr); i++) {
sc->sc_enaddr[i] =
(bus_space_read_1(bst, bsh0, ++offset) & 0xf) << 4;
offset++;
sc->sc_enaddr[i] |=
(bus_space_read_1(bst, bsh0, ++offset) & 0xf);
offset++;
}
sc->sc_copytodesc = le_copytobuf;
sc->sc_copyfromdesc = le_copyfrombuf;
sc->sc_copytobuf = le_copytobuf;
sc->sc_copyfrombuf = le_copyfrombuf;
sc->sc_zerobuf = le_zerobuf;
sc->sc_rdcsr = lerdcsr;
sc->sc_wrcsr = lewrcsr;
sc->sc_hwinit = NULL;
am7990_config(&lesc->sc_am7990);
/* Establish the interrupt handler. */
(void) dio_intr_establish(leintr, sc, da->da_ipl, IPL_NET);
bus_space_write_1(bst, bsh0, LER0_STATUS, LE_IE);
}
static int
leintr(void *arg)
{
struct lance_softc *sc = arg;
#ifdef USELEDS
uint16_t isr;
isr = lerdcsr(sc, LE_CSR0);
if ((isr & LE_C0_INTR) == 0)
return 0;
if (isr & LE_C0_RINT)
ledcontrol(0, 0, LED_LANRCV);
if (isr & LE_C0_TINT)
ledcontrol(0, 0, LED_LANXMT);
#endif /* USELEDS */
return am7990_intr(sc);
}
static void
le_copytobuf(struct lance_softc *sc, void *from, int boff, int len)
{
struct le_softc *lesc = (struct le_softc *)sc;
bus_space_write_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, from, len);
}
static void
le_copyfrombuf(struct lance_softc *sc, void *to, int boff, int len)
{
struct le_softc *lesc = (struct le_softc *)sc;
bus_space_read_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, to, len);
}
static void
le_zerobuf(struct lance_softc *sc, int boff, int len)
{
struct le_softc *lesc = (struct le_softc *)sc;
bus_space_set_region_1(lesc->sc_bst, lesc->sc_bsh2, boff, 0, len);
}