1/*- 2 * Copyright (c) 2003 Matthew N. Dodd <winter@jurai.net> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 *
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26 * $FreeBSD: head/sys/i386/bios/smapi.c 109463 2003-01-18 04:36:12Z mdodd $
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26 * $FreeBSD: head/sys/i386/bios/smapi.c 111815 2003-03-03 12:15:54Z phk $ |
27 */ 28 29#include <sys/param.h> 30#include <sys/systm.h> 31#include <sys/kernel.h> 32 33#include <sys/module.h> 34#include <sys/bus.h> 35#include <sys/conf.h> 36 37#include <machine/bus.h> 38#include <machine/resource.h> 39#include <sys/rman.h> 40 41#include <machine/smapi.h> 42#include <i386/smapi/smapi_var.h> 43 44u_long smapi32_offset; 45u_short smapi32_segment; 46#define SMAPI32_SEGMENT 0x18 47 48devclass_t smapi_devclass; 49 50static d_open_t smapi_open; 51static d_close_t smapi_close; 52static d_ioctl_t smapi_ioctl; 53 54#define CDEV_MAJOR 183 55 56static struct cdevsw smapi_cdevsw = {
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57 /* open */ smapi_open,
58 /* close */ smapi_close,
59 /* read */ noread,
60 /* write */ nowrite,
61 /* ioctl */ smapi_ioctl,
62 /* poll */ nopoll,
63 /* mmap */ nommap,
64 /* strategy */ nostrategy,
65 /* name */ "smapi",
66 /* maj */ CDEV_MAJOR,
67 /* dump */ nodump,
68 /* psize */ nopsize,
69 /* flags */ D_MEM,
70 /* kqfilter */ NULL,
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57 .d_open = smapi_open, 58 .d_close = smapi_close, 59 .d_ioctl = smapi_ioctl, 60 .d_name = "smapi", 61 .d_maj = CDEV_MAJOR, 62 .d_flags = D_MEM, |
63}; 64 65static int 66smapi_open (dev, oflags, devtype, td) 67 dev_t dev; 68 int oflags; 69 int devtype; 70 d_thread_t * td; 71{ 72 73 return (0); 74} 75 76static int 77smapi_close (dev, fflag, devtype, td) 78 dev_t dev; 79 int fflag; 80 int devtype; 81 d_thread_t * td; 82{ 83 84 return (0); 85} 86 87static int 88smapi_ioctl (dev, cmd, data, fflag, td) 89 dev_t dev; 90 u_long cmd; 91 caddr_t data; 92 int fflag; 93 d_thread_t * td; 94{ 95 struct smapi_softc *sc; 96 int error; 97 98 error = 0; 99 sc = devclass_get_softc(smapi_devclass, minor(dev)); 100 if (sc == NULL) { 101 error = ENXIO; 102 goto fail; 103 } 104 105 switch (cmd) { 106 case SMAPIOGHEADER: 107 bcopy((caddr_t)sc->header, data, 108 sizeof(struct smapi_bios_header)); 109 error = 0; 110 break; 111 case SMAPIOCGFUNCTION: 112#if 1 113 smapi32_segment = SMAPI32_SEGMENT; 114 smapi32_offset = sc->smapi32_entry; 115 error = smapi32( 116#else 117 error = smapi32_new(sc->smapi32_entry, SMAPI32_SEGMENT, 118#endif 119 (struct smapi_bios_parameter *)data, 120 (struct smapi_bios_parameter *)data); 121 break; 122 default: 123 error = ENOTTY; 124 } 125 126fail: 127 return (error); 128} 129 130int 131smapi_attach (struct smapi_softc *sc) 132{ 133 134 sc->cdev = make_dev(&smapi_cdevsw, 135 device_get_unit(sc->dev), 136 UID_ROOT, GID_WHEEL, 0600, 137 "%s%d", 138 smapi_cdevsw.d_name, 139 device_get_unit(sc->dev)); 140 141 return (0); 142} 143 144int 145smapi_detach (struct smapi_softc *sc) 146{ 147 148 destroy_dev(sc->cdev); 149 return (0); 150}
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