NetBSD-5.0.2/sys/arch/vax/if/if_le_vsbus.c
/* $NetBSD: if_le_vsbus.c,v 1.24 2008/04/28 20:23:39 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.
*
* 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_vsbus.c,v 1.24 2008/04/28 20:23:39 martin Exp $");
#include "opt_inet.h"
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/syslog.h>
#include <sys/socket.h>
#include <sys/device.h>
#include <sys/reboot.h>
#include <uvm/uvm_extern.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/sid.h>
#include <machine/scb.h>
#include <machine/bus.h>
#include <machine/vsbus.h>
#include <dev/ic/lancereg.h>
#include <dev/ic/lancevar.h>
#include <dev/ic/am7990reg.h>
#include <dev/ic/am7990var.h>
#include "ioconf.h"
struct le_softc {
struct am7990_softc sc_am7990; /* Must be first */
struct evcnt sc_intrcnt;
bus_dmamap_t sc_dm;
volatile uint16_t *sc_rap;
volatile uint16_t *sc_rdp;
};
static int le_vsbus_match(device_t, cfdata_t, void *);
static void le_vsbus_attach(device_t, device_t, void *);
static void lewrcsr(struct lance_softc *, uint16_t, uint16_t);
static uint16_t lerdcsr(struct lance_softc *, uint16_t);
CFATTACH_DECL_NEW(le_vsbus, sizeof(struct le_softc),
le_vsbus_match, le_vsbus_attach, NULL, NULL);
void
lewrcsr(struct lance_softc *ls, uint16_t port, uint16_t val)
{
struct le_softc * const sc = (void *)ls;
*sc->sc_rap = port;
*sc->sc_rdp = val;
}
uint16_t
lerdcsr(struct lance_softc *ls, uint16_t port)
{
struct le_softc * const sc = (void *)ls;
*sc->sc_rap = port;
return *sc->sc_rdp;
}
static int
le_vsbus_match(device_t parent, cfdata_t cf, void *aux)
{
struct vsbus_attach_args * const va = aux;
volatile uint16_t *rdp, *rap;
struct leinit initblock;
bus_dmamap_t map;
int i;
int rv = 0;
int error;
if (vax_boardtype == VAX_BTYP_49 || vax_boardtype == VAX_BTYP_53)
return 0;
error = bus_dmamap_create(va->va_dmat, sizeof(initblock), 1,
sizeof(initblock), 0, BUS_DMA_NOWAIT, &map);
if (error) {
return 0;
}
error = bus_dmamap_load(va->va_dmat, map, &initblock,
sizeof(initblock), NULL, BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
if (error) {
bus_dmamap_destroy(va->va_dmat, map);
return 0;
}
memset(&initblock, 0, sizeof(initblock));
rdp = (uint16_t *)va->va_addr;
rap = rdp + 2;
/* Make sure the chip is stopped. */
*rap = LE_CSR0;
*rdp = LE_C0_STOP;
DELAY(100);
*rap = LE_CSR1;
*rdp = map->dm_segs->ds_addr & 0xffff;
*rap = LE_CSR2;
*rdp = (map->dm_segs->ds_addr >> 16) & 0xffff;
*rap = LE_CSR0;
*rdp = LE_C0_INIT|LE_C0_INEA;
/* Wait for initialization to finish. */
for (i = 100; i >= 0; i--) {
DELAY(1000);
/* Should have interrupted by now */
if (*rdp & LE_C0_IDON)
rv = 1;
}
*rap = LE_CSR0;
*rdp = LE_C0_STOP;
bus_dmamap_unload(va->va_dmat, map);
bus_dmamap_destroy(va->va_dmat, map);
return rv;
}
static void
le_vsbus_attach(device_t parent, device_t self, void *aux)
{
struct vsbus_attach_args * const va = aux;
struct le_softc * const sc = device_private(self);
bus_dma_segment_t seg;
int *lance_addr;
int i, err, rseg;
sc->sc_am7990.lsc.sc_dev = self;
sc->sc_rdp = (uint16_t *) vax_map_physmem(NI_BASE, 1);
sc->sc_rap = sc->sc_rdp + 2;
/*
* MD functions.
*/
sc->sc_am7990.lsc.sc_rdcsr = lerdcsr;
sc->sc_am7990.lsc.sc_wrcsr = lewrcsr;
sc->sc_am7990.lsc.sc_nocarrier = NULL;
scb_vecalloc(va->va_cvec, (void (*)(void *)) am7990_intr, sc,
SCB_ISTACK, &sc->sc_intrcnt);
evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL,
device_xname(self), "intr");
/*
* Allocate a (DMA-safe) block for all descriptors and buffers.
*/
#define ALLOCSIZ (64 * 1024)
err = bus_dmamem_alloc(va->va_dmat, ALLOCSIZ, PAGE_SIZE, 0,
&seg, 1, &rseg, BUS_DMA_NOWAIT);
if (err) {
aprint_error(": unable to alloc buffer block: err %d\n", err);
return;
}
err = bus_dmamem_map(va->va_dmat, &seg, rseg, ALLOCSIZ,
(void **)&sc->sc_am7990.lsc.sc_mem,
BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
if (err) {
aprint_error(": unable to map buffer block: err %d\n", err);
bus_dmamem_free(va->va_dmat, &seg, rseg);
return;
}
bus_dmamap_create(va->va_dmat, ALLOCSIZ, rseg, ALLOCSIZ,
0, BUS_DMA_NOWAIT, &sc->sc_dm);
if (err) {
aprint_error(": unable to create DMA map: err %d\n", err);
bus_dmamem_free(va->va_dmat, &seg, rseg);
return;
}
err = bus_dmamap_load(va->va_dmat, sc->sc_dm, sc->sc_am7990.lsc.sc_mem,
ALLOCSIZ, NULL, BUS_DMA_NOWAIT);
if (err) {
aprint_error(": unable to load DMA map: err %d\n", err);
bus_dmamap_destroy(va->va_dmat, sc->sc_dm);
bus_dmamem_free(va->va_dmat, &seg, rseg);
return;
}
aprint_normal(" buf 0x%lx-0x%lx", sc->sc_dm->dm_segs->ds_addr,
sc->sc_dm->dm_segs->ds_addr + sc->sc_dm->dm_segs->ds_len - 1);
sc->sc_am7990.lsc.sc_addr = sc->sc_dm->dm_segs->ds_addr & 0xffffff;
sc->sc_am7990.lsc.sc_memsize = sc->sc_dm->dm_segs->ds_len;
sc->sc_am7990.lsc.sc_copytodesc = lance_copytobuf_contig;
sc->sc_am7990.lsc.sc_copyfromdesc = lance_copyfrombuf_contig;
sc->sc_am7990.lsc.sc_copytobuf = lance_copytobuf_contig;
sc->sc_am7990.lsc.sc_copyfrombuf = lance_copyfrombuf_contig;
sc->sc_am7990.lsc.sc_zerobuf = lance_zerobuf_contig;
#ifdef LEDEBUG
sc->sc_am7990.lsc.sc_debug = 1;
#endif
/*
* Get the ethernet address out of rom
*/
lance_addr = (int *)vax_map_physmem(NI_ADDR, 1);
for (i = 0; i < ETHER_ADDR_LEN; i++)
sc->sc_am7990.lsc.sc_enaddr[i] = (u_char)lance_addr[i];
vax_unmap_physmem((vaddr_t)lance_addr, 1);
bcopy(device_xname(self), sc->sc_am7990.lsc.sc_ethercom.ec_if.if_xname,
IFNAMSIZ);
/* Prettier printout */
aprint_normal("\n%s", device_xname(self));
am7990_config(&sc->sc_am7990);
}