156 lines
4.4 KiB
C
156 lines
4.4 KiB
C
/*-
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* Copyright (c) 2012 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 Paul Fleischer <paul@xpg.dk>
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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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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#include <sys/device.h>
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#include <sys/time.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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#include <sys/bus.h>
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#include <machine/intr.h>
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#include <arch/arm/s3c2xx0/s3c2440reg.h>
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#include <arch/arm/s3c2xx0/s3c2440var.h>
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#include <arch/arm/s3c2xx0/s3c2440_dma.h>
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#include <dev/ic/dm9000var.h>
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#include <dev/ic/dm9000reg.h>
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#include "opt_mini2440.h"
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int dme_ssextio_match(struct device *, struct cfdata *, void *);
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void dme_ssextio_attach(struct device *, struct device *, void *);
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CFATTACH_DECL_NEW(dme_ssextio, sizeof(struct dme_softc),
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dme_ssextio_match, dme_ssextio_attach, NULL, NULL);
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int
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dme_ssextio_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct s3c2xx0_attach_args *sa = aux;
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bus_space_tag_t iot = sa->sa_iot;
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bus_space_handle_t ioh;
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vaddr_t ioaddr;
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struct dme_softc sc; /* Used to temporarily access the device for
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probing */
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int have_io = 0;
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int result = 0;
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uint8_t vendorId[2];
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uint8_t productId[2];
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/* Map memory to access the device during probing */
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ioaddr = sa->sa_addr;
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if (bus_space_map(iot, ioaddr, DM9000_IOSIZE, 0, &ioh))
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goto out;
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have_io = 1;
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/* Zero the device description */
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memset(&sc, 0, sizeof sc);
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sc.sc_iot = iot;
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sc.sc_ioh = ioh;
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sc.dme_io = 0x0;
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sc.dme_data = 0x4;
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vendorId[0] = dme_read(&sc, DM9000_VID0);
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vendorId[1] = dme_read(&sc, DM9000_VID1);
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productId[0] = dme_read(&sc, DM9000_PID0);
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productId[1] = dme_read(&sc, DM9000_PID1);
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if (vendorId[0] == 0x46 && vendorId[1] == 0x0a &&
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productId[0] == 0x00 && productId[1] == 0x90 ) {
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result = 1;
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}
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out:
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if (have_io)
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bus_space_unmap(iot, ioh, DM9000_IOSIZE);
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return result;
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}
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void
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dme_ssextio_attach(struct device *parent, struct device *self, void *aux)
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{
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struct dme_softc *sc = device_private(self);
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struct s3c2xx0_attach_args *sa = aux;
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vaddr_t ioaddr;
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const uint8_t *enaddr;
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prop_data_t ea;
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#ifdef MINI2440_ETHER_ADDR_FIXED
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static u_int8_t enaddr_default[ETHER_ADDR_LEN] = {MINI2440_ETHER_ADDR_FIXED};
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#endif
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sc->sc_iot = sa->sa_iot;
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sc->sc_dev = self;
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ioaddr = sa->sa_addr;
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if (bus_space_map(sc->sc_iot, ioaddr, DM9000_IOSIZE, 0, &sc->sc_ioh)) {
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aprint_error(": unable to map i/o space\n");
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return;
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}
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sc->sc_ih = s3c2440_extint_establish(sa->sa_intr, IPL_NET, IST_EDGE_RISING, dme_intr, sc);
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if (sc->sc_ih == NULL) {
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aprint_error(": unable to establish interrupt\n");
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return;
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}
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sc->dme_io = 0x0;
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sc->dme_data = 0x4;
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aprint_normal("\n");
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ea = prop_dictionary_get(device_properties(self), "mac-address");
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if( ea != NULL ) {
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KASSERT(prop_object_type(ea) == PROP_TYPE_DATA);
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KASSERT(prop_data_size(ea) == ETHER_ADDR_LEN);
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enaddr = prop_data_data_nocopy(ea);
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} else {
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#ifdef MINI2440_ETHER_ADDR_FIXED
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enaddr = &enaddr_default;
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#else
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aprint_error_dev(self, "Unable to get mac-address property\n");
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return;
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#endif
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}
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dme_attach(sc, enaddr);
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}
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