/* $NetBSD: amdpcib_hpet.c,v 1.4 2008/03/21 13:25:27 xtraeme Exp $ */ /* * Copyright (c) 2006 Nicolas Joly * All rights reserved. * * 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. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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. */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: amdpcib_hpet.c,v 1.4 2008/03/21 13:25:27 xtraeme Exp $"); #include <sys/systm.h> #include <sys/device.h> #include <sys/time.h> #include <sys/timetc.h> #include <machine/bus.h> #include <dev/pci/pcivar.h> #include <dev/pci/pcireg.h> #include <dev/pci/pcidevs.h> #include <dev/ic/hpetvar.h> static int amdpcib_hpet_match(device_t , cfdata_t , void *); static void amdpcib_hpet_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(amdpcib_hpet, sizeof(struct hpet_softc), amdpcib_hpet_match, amdpcib_hpet_attach, NULL, NULL); static int amdpcib_hpet_match(device_t parent, cfdata_t match, void *aux) { return 1; } static void amdpcib_hpet_attach(device_t parent, device_t self, void *aux) { struct hpet_softc *sc = device_private(self); struct pci_attach_args *pa = aux; pcireg_t conf, addr; aprint_naive("\n"); aprint_normal(": HPET timer\n"); conf = pci_conf_read(pa->pa_pc, pa->pa_tag, 0xa0); if ((conf & 1) == 0) { aprint_normal_dev(self, "HPET timer is disabled\n"); return; } sc->sc_memt = pa->pa_memt; addr = conf & 0xfffffc00; if (bus_space_map(sc->sc_memt, addr, 1024, 0, &sc->sc_memh)) { aprint_error_dev(self, "failed to map mem\n"); return; } hpet_attach_subr(self); }