239 lines
7.2 KiB
C
239 lines
7.2 KiB
C
/* $NetBSD: depca_isa.c,v 1.16 2012/10/27 17:18:24 chs Exp $ */
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/*-
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* Copyright (c) 1997, 1998, 2000 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 and by Jason R. Thorpe of the Numerical Aerospace
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* Simulation Facility, NASA Ames Research Center.
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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: depca_isa.c,v 1.16 2012/10/27 17:18:24 chs Exp $");
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#include "opt_inet.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.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 <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 <sys/cpu.h>
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#include <sys/intr.h>
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#include <sys/bus.h>
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#include <dev/isa/isareg.h>
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#include <dev/isa/isavar.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 <dev/ic/depcareg.h>
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#include <dev/ic/depcavar.h>
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int depca_isa_probe(device_t, cfdata_t, void *);
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void depca_isa_attach(device_t, device_t, void *);
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struct depca_isa_softc {
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struct depca_softc sc_depca;
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isa_chipset_tag_t sc_ic;
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int sc_irq;
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};
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CFATTACH_DECL_NEW(depca_isa, sizeof(struct depca_isa_softc),
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depca_isa_probe, depca_isa_attach, NULL, NULL);
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void *depca_isa_intr_establish(struct depca_softc *, struct lance_softc *);
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int
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depca_isa_probe(device_t parent, cfdata_t cf, void *aux)
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{
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struct isa_attach_args *ia = aux;
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bus_space_tag_t iot = ia->ia_iot;
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bus_space_handle_t ioh;
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bus_space_handle_t memh;
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int rv = 0;
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if (ia->ia_nio < 1)
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return (0);
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if (ia->ia_niomem < 1)
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return (0);
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if (ia->ia_nirq < 1)
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return (0);
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if (ISA_DIRECT_CONFIG(ia))
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return (0);
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if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ)
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return (0);
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/* Disallow impossible i/o address. */
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if (ia->ia_io[0].ir_addr != 0x200 && ia->ia_io[0].ir_addr != 0x300)
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return (0);
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/* Map i/o space. */
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if (bus_space_map(iot, ia->ia_io[0].ir_addr, 16, 0, &ioh))
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return 0;
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if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM ||
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(ia->ia_iomem[0].ir_size != 32 * 1024 &&
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ia->ia_iomem[0].ir_size != 64 * 1024))
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goto bad;
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/* Map card RAM. */
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if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr,
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ia->ia_iomem[0].ir_size, 0, &memh))
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goto bad;
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/* Just needed to check mapability; don't need it anymore. */
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bus_space_unmap(ia->ia_memt, memh, ia->ia_iomem[0].ir_size);
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/* Stop the LANCE chip and put it in a known state. */
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bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR0);
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bus_space_write_2(iot, ioh, DEPCA_RDP, LE_C0_STOP);
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delay(100);
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bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR0);
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if (bus_space_read_2(iot, ioh, DEPCA_RDP) != LE_C0_STOP)
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goto bad;
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bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR3);
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bus_space_write_2(iot, ioh, DEPCA_RDP, LE_C3_ACON);
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bus_space_write_1(iot, ioh, DEPCA_CSR, DEPCA_CSR_DUM);
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if (depca_readprom(iot, ioh, NULL))
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goto bad;
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ia->ia_nio = 1;
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ia->ia_io[0].ir_size = 16;
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ia->ia_niomem = 1;
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ia->ia_nirq = 1;
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ia->ia_ndrq = 0;
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rv = 1;
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bad:
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bus_space_unmap(iot, ioh, 16);
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return (rv);
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}
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void
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depca_isa_attach(device_t parent, device_t self, void *aux)
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{
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struct depca_isa_softc *isc = device_private(self);
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struct depca_softc *sc = &isc->sc_depca;
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struct isa_attach_args *ia = aux;
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sc->sc_dev = self;
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aprint_normal("\n");
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sc->sc_iot = ia->ia_iot;
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sc->sc_memt = ia->ia_memt;
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sc->sc_memsize = ia->ia_iomem[0].ir_size;
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if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, 16,
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0, &sc->sc_ioh) != 0) {
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aprint_error_dev(self, "unable to map i/o space\n");
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return;
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}
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if (bus_space_map(sc->sc_memt, ia->ia_iomem[0].ir_addr,
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ia->ia_iomem[0].ir_size, 0, &sc->sc_memh) != 0) {
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aprint_error_dev(self, "unable to map memory space\n");
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return;
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}
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isc->sc_ic = ia->ia_ic;
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isc->sc_irq = ia->ia_irq[0].ir_irq;
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sc->sc_intr_establish = depca_isa_intr_establish;
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depca_attach(sc);
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}
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void *
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depca_isa_intr_establish(struct depca_softc *sc, struct lance_softc *child)
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{
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struct depca_isa_softc *isc = (struct depca_isa_softc *)sc;
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void *rv;
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rv = isa_intr_establish(isc->sc_ic, isc->sc_irq, IST_EDGE,
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IPL_NET, depca_intredge, child);
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if (rv == NULL)
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printf("%s: unable to establish interrupt\n",
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device_xname(sc->sc_dev));
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return (rv);
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}
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