159 lines
3.5 KiB
C
159 lines
3.5 KiB
C
/*-
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* Copyright (c) 2003 Matthew N. Dodd <winter@jurai.net>
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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* $FreeBSD$
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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/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <machine/smapi.h>
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#include <i386/smapi/smapi_var.h>
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u_long smapi32_offset;
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u_short smapi32_segment;
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#define SMAPI32_SEGMENT 0x18
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devclass_t smapi_devclass;
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static d_open_t smapi_open;
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static d_close_t smapi_close;
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static d_ioctl_t smapi_ioctl;
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#define CDEV_MAJOR 183
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static struct cdevsw smapi_cdevsw = {
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/* open */ smapi_open,
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/* close */ smapi_close,
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/* read */ noread,
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/* write */ nowrite,
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/* ioctl */ smapi_ioctl,
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/* poll */ nopoll,
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/* mmap */ nommap,
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/* strategy */ nostrategy,
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/* name */ "smapi",
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/* maj */ CDEV_MAJOR,
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/* dump */ nodump,
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/* psize */ nopsize,
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/* flags */ D_MEM,
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/* kqfilter */ NULL,
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};
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static int
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smapi_open (dev, oflags, devtype, td)
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dev_t dev;
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int oflags;
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int devtype;
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d_thread_t * td;
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{
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return (0);
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}
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static int
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smapi_close (dev, fflag, devtype, td)
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dev_t dev;
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int fflag;
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int devtype;
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d_thread_t * td;
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{
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return (0);
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}
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static int
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smapi_ioctl (dev, cmd, data, fflag, td)
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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 fflag;
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d_thread_t * td;
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{
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struct smapi_softc *sc;
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int error;
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error = 0;
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sc = devclass_get_softc(smapi_devclass, minor(dev));
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if (sc == NULL) {
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error = ENXIO;
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goto fail;
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}
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switch (cmd) {
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case SMAPIOGHEADER:
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bcopy((caddr_t)sc->header, data,
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sizeof(struct smapi_bios_header));
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error = 0;
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break;
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case SMAPIOCGFUNCTION:
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#if 1
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smapi32_segment = SMAPI32_SEGMENT;
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smapi32_offset = sc->smapi32_entry;
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error = smapi32(
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#else
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error = smapi32_new(sc->smapi32_entry, SMAPI32_SEGMENT,
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#endif
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(struct smapi_bios_parameter *)data,
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(struct smapi_bios_parameter *)data);
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break;
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default:
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error = ENOTTY;
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}
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fail:
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return (error);
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}
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int
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smapi_attach (struct smapi_softc *sc)
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{
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sc->cdev = make_dev(&smapi_cdevsw,
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device_get_unit(sc->dev),
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UID_ROOT, GID_WHEEL, 0600,
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"%s%d",
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smapi_cdevsw.d_name,
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device_get_unit(sc->dev));
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return (0);
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}
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int
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smapi_detach (struct smapi_softc *sc)
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{
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destroy_dev(sc->cdev);
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return (0);
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}
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