1/* $NetBSD: openfirmio.c,v 1.4 2002/09/06 13:23:19 gehenna Exp $ */
2
3/*
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This software was developed by the Computer Systems Engineering group
8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and

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38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
42 * SUCH DAMAGE.
43 *
44 * @(#)openfirm.c 8.1 (Berkeley) 6/11/93
45 *
46 * $FreeBSD: head/sys/dev/ofw/openfirmio.c 111119 2003-02-19 05:47:46Z imp $
47 */
48
49#include <sys/param.h>
50#include <sys/systm.h>
51#include <sys/conf.h>
52#include <sys/errno.h>
53#include <sys/fcntl.h>
54#include <sys/ioccom.h>

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61static dev_t openfirm_dev;
62
63static d_ioctl_t openfirm_ioctl;
64
65#define CDEV_MAJOR 177
66#define OPENFIRM_MINOR 0
67
68static struct cdevsw openfirm_cdevsw = {
69 /* open */ nullopen,
70 /* close */ nullclose,
71 /* read */ noread,
72 /* write */ nowrite,
73 /* ioctl */ openfirm_ioctl,
74 /* poll */ nopoll,
75 /* mmap */ nommap,
76 /* strategy */ nostrategy,
77 /* name */ "openfirm",
78 /* maj */ CDEV_MAJOR,
79 /* dump */ nodump,
80 /* psize */ nopsize,
81 /* flags */ 0,
82 /* kqfilter */ nokqfilter
83};
84
85static phandle_t lastnode; /* speed hack */
86
87static int openfirm_checkid(phandle_t, phandle_t);
88static int openfirm_getstr(int, const char *, char **);
89
90/* Maximum accepted name length. */

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