147 lines
3.9 KiB
C
147 lines
3.9 KiB
C
/* $NetBSD: apm.c,v 1.6 2003/01/20 05:30:01 simonb Exp $ */
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/*-
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* Copyright (c) 2002 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 Emmanuel Dreyfus
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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 "apm.h"
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: apm.c,v 1.6 2003/01/20 05:30:01 simonb Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/device.h>
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#include <sys/fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/select.h>
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#include <sys/poll.h>
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#include <sys/conf.h>
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#include <machine/apmvar.h>
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extern struct cfdriver apm_cd;
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extern int hpcarm_apm_getpower(struct apm_power_info *, void *);
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int apmmatch(struct device *, struct cfdata *, void *);
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void apmattach(struct device *, struct device *, void *);
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dev_type_open(apmopen);
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dev_type_close(apmclose);
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dev_type_ioctl(apmioctl);
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struct apm_softc {
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struct device sc_dev;
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void *sc_parent;
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};
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CFATTACH_DECL(apm, sizeof(struct apm_softc),
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apmmatch, apmattach, NULL, NULL);
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const struct cdevsw apm_cdevsw = {
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apmopen, apmclose, noread, nowrite, apmioctl,
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nostop, notty, nopoll, nommap, nokqfilter,
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};
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int
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apmmatch(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct apm_attach_args *apm_args = (struct apm_attach_args *)aux;
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return (apm_args->aaa_magic == APM_ATTACH_ARGS_MAGIC);
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}
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void
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apmattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct apm_softc *sc = (struct apm_softc *)self;
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sc->sc_parent = (void *)parent;
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return;
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}
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int
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apmopen(dev, flag, mode, p)
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dev_t dev;
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int flag, mode;
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struct proc *p;
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{
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return 0;
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}
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int
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apmclose(dev, flag, mode, p)
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dev_t dev;
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int flag, mode;
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struct proc *p;
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{
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return 0;
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}
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int
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apmioctl(dev, cmd, data, flag, p)
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dev_t dev;
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u_long cmd;
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caddr_t data;
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int flag;
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struct proc *p;
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{
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struct apm_softc *sc;
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if ((apm_cd.cd_ndevs == 0) || (minor(dev) & 0xf0) ||
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((sc = apm_cd.cd_devs[minor(dev) & 0xf0]) == NULL))
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return ENXIO;
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switch (cmd) {
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case APM_IOC_GETPOWER:
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return hpcarm_apm_getpower((struct apm_power_info *)data,
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sc->sc_parent);
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break;
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default:
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return EINVAL;
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break;
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}
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return 0;
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}
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