283 lines
8.7 KiB
C
283 lines
8.7 KiB
C
/* $NetBSD: if_le_vsbus.c,v 1.25 2009/03/18 17:06:47 cegger Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Charles M. Hannum.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell and Rick Macklem.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)if_le.c 8.2 (Berkeley) 11/16/93
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_le_vsbus.c,v 1.25 2009/03/18 17:06:47 cegger Exp $");
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#include "opt_inet.h"
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#include "bpfilter.h"
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#include <sys/param.h>
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#include <sys/syslog.h>
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#include <sys/socket.h>
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#include <sys/device.h>
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#include <sys/reboot.h>
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#include <uvm/uvm_extern.h>
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#include <net/if.h>
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#include <net/if_ether.h>
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#include <net/if_media.h>
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#ifdef INET
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#include <netinet/in.h>
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#include <netinet/if_inarp.h>
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#endif
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#include <machine/cpu.h>
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#include <machine/sid.h>
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#include <machine/scb.h>
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#include <machine/bus.h>
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#include <machine/vsbus.h>
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#include <dev/ic/lancereg.h>
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#include <dev/ic/lancevar.h>
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#include <dev/ic/am7990reg.h>
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#include <dev/ic/am7990var.h>
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#include "ioconf.h"
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struct le_softc {
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struct am7990_softc sc_am7990; /* Must be first */
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struct evcnt sc_intrcnt;
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bus_dmamap_t sc_dm;
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volatile uint16_t *sc_rap;
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volatile uint16_t *sc_rdp;
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};
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static int le_vsbus_match(device_t, cfdata_t, void *);
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static void le_vsbus_attach(device_t, device_t, void *);
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static void lewrcsr(struct lance_softc *, uint16_t, uint16_t);
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static uint16_t lerdcsr(struct lance_softc *, uint16_t);
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CFATTACH_DECL_NEW(le_vsbus, sizeof(struct le_softc),
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le_vsbus_match, le_vsbus_attach, NULL, NULL);
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void
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lewrcsr(struct lance_softc *ls, uint16_t port, uint16_t val)
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{
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struct le_softc * const sc = (void *)ls;
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*sc->sc_rap = port;
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*sc->sc_rdp = val;
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}
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uint16_t
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lerdcsr(struct lance_softc *ls, uint16_t port)
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{
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struct le_softc * const sc = (void *)ls;
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*sc->sc_rap = port;
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return *sc->sc_rdp;
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}
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static int
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le_vsbus_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct vsbus_attach_args * const va = aux;
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volatile uint16_t *rdp, *rap;
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struct leinit initblock;
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bus_dmamap_t map;
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int i;
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int rv = 0;
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int error;
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if (vax_boardtype == VAX_BTYP_49 || vax_boardtype == VAX_BTYP_53)
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return 0;
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error = bus_dmamap_create(va->va_dmat, sizeof(initblock), 1,
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sizeof(initblock), 0, BUS_DMA_NOWAIT, &map);
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if (error) {
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return 0;
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}
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error = bus_dmamap_load(va->va_dmat, map, &initblock,
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sizeof(initblock), NULL, BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
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if (error) {
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bus_dmamap_destroy(va->va_dmat, map);
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return 0;
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}
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memset(&initblock, 0, sizeof(initblock));
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rdp = (uint16_t *)va->va_addr;
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rap = rdp + 2;
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/* Make sure the chip is stopped. */
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*rap = LE_CSR0;
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*rdp = LE_C0_STOP;
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DELAY(100);
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*rap = LE_CSR1;
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*rdp = map->dm_segs->ds_addr & 0xffff;
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*rap = LE_CSR2;
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*rdp = (map->dm_segs->ds_addr >> 16) & 0xffff;
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*rap = LE_CSR0;
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*rdp = LE_C0_INIT|LE_C0_INEA;
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/* Wait for initialization to finish. */
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for (i = 100; i >= 0; i--) {
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DELAY(1000);
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/* Should have interrupted by now */
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if (*rdp & LE_C0_IDON)
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rv = 1;
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}
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*rap = LE_CSR0;
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*rdp = LE_C0_STOP;
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bus_dmamap_unload(va->va_dmat, map);
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bus_dmamap_destroy(va->va_dmat, map);
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return rv;
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}
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static void
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le_vsbus_attach(device_t parent, device_t self, void *aux)
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{
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struct vsbus_attach_args * const va = aux;
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struct le_softc * const sc = device_private(self);
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bus_dma_segment_t seg;
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int *lance_addr;
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int i, err, rseg;
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sc->sc_am7990.lsc.sc_dev = self;
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sc->sc_rdp = (uint16_t *) vax_map_physmem(NI_BASE, 1);
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sc->sc_rap = sc->sc_rdp + 2;
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/*
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* MD functions.
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*/
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sc->sc_am7990.lsc.sc_rdcsr = lerdcsr;
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sc->sc_am7990.lsc.sc_wrcsr = lewrcsr;
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sc->sc_am7990.lsc.sc_nocarrier = NULL;
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scb_vecalloc(va->va_cvec, (void (*)(void *)) am7990_intr, sc,
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SCB_ISTACK, &sc->sc_intrcnt);
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evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL,
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device_xname(self), "intr");
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/*
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* Allocate a (DMA-safe) block for all descriptors and buffers.
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*/
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#define ALLOCSIZ (64 * 1024)
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err = bus_dmamem_alloc(va->va_dmat, ALLOCSIZ, PAGE_SIZE, 0,
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&seg, 1, &rseg, BUS_DMA_NOWAIT);
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if (err) {
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aprint_error(": unable to alloc buffer block: err %d\n", err);
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return;
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}
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err = bus_dmamem_map(va->va_dmat, &seg, rseg, ALLOCSIZ,
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(void **)&sc->sc_am7990.lsc.sc_mem,
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BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
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if (err) {
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aprint_error(": unable to map buffer block: err %d\n", err);
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bus_dmamem_free(va->va_dmat, &seg, rseg);
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return;
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}
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bus_dmamap_create(va->va_dmat, ALLOCSIZ, rseg, ALLOCSIZ,
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0, BUS_DMA_NOWAIT, &sc->sc_dm);
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if (err) {
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aprint_error(": unable to create DMA map: err %d\n", err);
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bus_dmamem_free(va->va_dmat, &seg, rseg);
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return;
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}
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err = bus_dmamap_load(va->va_dmat, sc->sc_dm, sc->sc_am7990.lsc.sc_mem,
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ALLOCSIZ, NULL, BUS_DMA_NOWAIT);
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if (err) {
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aprint_error(": unable to load DMA map: err %d\n", err);
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bus_dmamap_destroy(va->va_dmat, sc->sc_dm);
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bus_dmamem_free(va->va_dmat, &seg, rseg);
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return;
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}
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aprint_normal(" buf 0x%lx-0x%lx", sc->sc_dm->dm_segs->ds_addr,
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sc->sc_dm->dm_segs->ds_addr + sc->sc_dm->dm_segs->ds_len - 1);
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sc->sc_am7990.lsc.sc_addr = sc->sc_dm->dm_segs->ds_addr & 0xffffff;
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sc->sc_am7990.lsc.sc_memsize = sc->sc_dm->dm_segs->ds_len;
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sc->sc_am7990.lsc.sc_copytodesc = lance_copytobuf_contig;
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sc->sc_am7990.lsc.sc_copyfromdesc = lance_copyfrombuf_contig;
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sc->sc_am7990.lsc.sc_copytobuf = lance_copytobuf_contig;
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sc->sc_am7990.lsc.sc_copyfrombuf = lance_copyfrombuf_contig;
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sc->sc_am7990.lsc.sc_zerobuf = lance_zerobuf_contig;
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#ifdef LEDEBUG
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sc->sc_am7990.lsc.sc_debug = 1;
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#endif
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/*
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* Get the ethernet address out of rom
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*/
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lance_addr = (int *)vax_map_physmem(NI_ADDR, 1);
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for (i = 0; i < ETHER_ADDR_LEN; i++)
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sc->sc_am7990.lsc.sc_enaddr[i] = (u_char)lance_addr[i];
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vax_unmap_physmem((vaddr_t)lance_addr, 1);
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memcpy( sc->sc_am7990.lsc.sc_ethercom.ec_if.if_xname, device_xname(self),
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IFNAMSIZ);
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/* Prettier printout */
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aprint_normal("\n%s", device_xname(self));
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am7990_config(&sc->sc_am7990);
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}
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