241 lines
6.3 KiB
C
241 lines
6.3 KiB
C
/*
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* Copyright (c) 2000 Matthew R. Green
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* All rights reserved.
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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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* 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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* from: NetBSD: if_hme_pci.c,v 1.4 2001/08/27 22:18:49 augustss Exp
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*
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* $FreeBSD$
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*/
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/*
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* PCI front-end device driver for the HME ethernet device.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/resource.h>
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#include <sys/socket.h>
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#include <machine/bus.h>
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#include <machine/ofw_machdep.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <mii/mii.h>
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#include <mii/miivar.h>
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#include <pci/pcivar.h>
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#include <pci/pcireg.h>
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#include <hme/if_hmereg.h>
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#include <hme/if_hmevar.h>
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#include "miibus_if.h"
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struct hme_pci_softc {
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struct hme_softc hsc_hme; /* HME device */
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struct resource *hsc_sres;
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int hsc_srid;
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struct resource *hsc_ires;
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int hsc_irid;
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bus_space_tag_t hsc_memt;
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bus_space_handle_t hsc_memh;
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void *hsc_ih;
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};
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static int hme_pci_probe(device_t);
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static int hme_pci_attach(device_t);
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static int hme_pci_detach(device_t);
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static int hme_pci_suspend(device_t);
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static int hme_pci_resume(device_t);
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static device_method_t hme_pci_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, hme_pci_probe),
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DEVMETHOD(device_attach, hme_pci_attach),
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DEVMETHOD(device_detach, hme_pci_detach),
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DEVMETHOD(device_suspend, hme_pci_suspend),
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DEVMETHOD(device_resume, hme_pci_resume),
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/* Can just use the suspend method here. */
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DEVMETHOD(device_shutdown, hme_pci_suspend),
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/* bus interface */
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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DEVMETHOD(bus_driver_added, bus_generic_driver_added),
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/* MII interface */
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DEVMETHOD(miibus_readreg, hme_mii_readreg),
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DEVMETHOD(miibus_writereg, hme_mii_writereg),
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DEVMETHOD(miibus_statchg, hme_mii_statchg),
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{ 0, 0 }
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};
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static driver_t hme_pci_driver = {
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"hme",
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hme_pci_methods,
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sizeof(struct hme_pci_softc)
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};
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DRIVER_MODULE(hme, pci, hme_pci_driver, hme_devclass, 0, 0);
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MODULE_DEPEND(hme, pci, 1, 1, 1);
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MODULE_DEPEND(hme, ether, 1, 1, 1);
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int
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hme_pci_probe(device_t dev)
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{
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if (pci_get_vendor(dev) == 0x108e &&
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pci_get_device(dev) == 0x1001) {
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device_set_desc(dev, "Sun HME 10/100 Ethernet");
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return (0);
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}
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return (ENXIO);
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}
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int
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hme_pci_attach(device_t dev)
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{
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struct hme_pci_softc *hsc = device_get_softc(dev);
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struct hme_softc *sc = &hsc->hsc_hme;
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int error;
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pci_enable_busmaster(dev);
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/*
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* Some Sun HMEs do have their intpin register bogusly set to 0,
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* although it should be 1. correct that.
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*/
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if (pci_get_intpin(dev) == 0)
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pci_set_intpin(dev, 1);
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sc->sc_pci = 1;
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sc->sc_dev = dev;
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/*
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* Map five register banks:
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*
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* bank 0: HME SEB registers: +0x0000
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* bank 1: HME ETX registers: +0x2000
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* bank 2: HME ERX registers: +0x4000
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* bank 3: HME MAC registers: +0x6000
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* bank 4: HME MIF registers: +0x7000
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*
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*/
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hsc->hsc_srid = PCI_HME_BASEADDR;
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hsc->hsc_sres = bus_alloc_resource(dev, SYS_RES_MEMORY, &hsc->hsc_srid,
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0, ~0, 1, RF_ACTIVE);
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if (hsc->hsc_sres == NULL) {
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device_printf(dev, "could not map device registers\n");
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return (ENXIO);
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}
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hsc->hsc_irid = 0;
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hsc->hsc_ires = bus_alloc_resource(dev, SYS_RES_IRQ, &hsc->hsc_irid, 0,
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~0, 1, RF_SHAREABLE | RF_ACTIVE);
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if (hsc->hsc_ires == NULL) {
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device_printf(dev, "could not allocate interrupt\n");
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error = ENXIO;
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goto fail_sres;
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}
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sc->sc_sebt = sc->sc_etxt = sc->sc_erxt = sc->sc_mact = sc->sc_mift =
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rman_get_bustag(hsc->hsc_sres);
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sc->sc_sebh = sc->sc_etxh = sc->sc_erxh = sc->sc_mach = sc->sc_mifh =
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rman_get_bushandle(hsc->hsc_sres);
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sc->sc_sebo = 0;
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sc->sc_etxo = 0x2000;
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sc->sc_erxo = 0x4000;
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sc->sc_maco = 0x6000;
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sc->sc_mifo = 0x7000;
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OF_getetheraddr(dev, sc->sc_arpcom.ac_enaddr);
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sc->sc_burst = 64; /* XXX */
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/*
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* call the main configure
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*/
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if ((error = hme_config(sc)) != 0) {
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device_printf(dev, "could not be configured\n");
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goto fail_ires;
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}
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if ((error = bus_setup_intr(dev, hsc->hsc_ires, INTR_TYPE_NET, hme_intr,
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sc, &hsc->hsc_ih)) != 0) {
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device_printf(dev, "couldn't establish interrupt\n");
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hme_detach(sc);
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goto fail_ires;
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}
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return (0);
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fail_ires:
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bus_release_resource(dev, SYS_RES_IRQ, hsc->hsc_irid, hsc->hsc_ires);
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fail_sres:
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bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_srid, hsc->hsc_sres);
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return (ENXIO);
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}
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static int
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hme_pci_detach(device_t dev)
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{
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struct hme_pci_softc *hsc = device_get_softc(dev);
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struct hme_softc *sc = &hsc->hsc_hme;
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hme_detach(sc);
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bus_teardown_intr(dev, hsc->hsc_ires, hsc->hsc_ih);
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bus_release_resource(dev, SYS_RES_IRQ, hsc->hsc_irid, hsc->hsc_ires);
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bus_release_resource(dev, SYS_RES_MEMORY, hsc->hsc_srid, hsc->hsc_sres);
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return (0);
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}
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static int
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hme_pci_suspend(device_t dev)
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{
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struct hme_pci_softc *hsc = device_get_softc(dev);
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struct hme_softc *sc = &hsc->hsc_hme;
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hme_suspend(sc);
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return (0);
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}
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static int
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hme_pci_resume(device_t dev)
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{
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struct hme_pci_softc *hsc = device_get_softc(dev);
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struct hme_softc *sc = &hsc->hsc_hme;
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hme_resume(sc);
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return (0);
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}
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