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File: [cvs.NetBSD.org] / src / sys / arch / i386 / stand / dosboot / devopen.c (download)

Revision 1.11, Sat Mar 14 15:36:07 2009 UTC (10 years, 7 months ago) by dsl
Branch: MAIN
CVS Tags: yamt-pagecache-tag8, yamt-pagecache-base9, yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6, yamt-pagecache-base5, yamt-pagecache-base4, yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, yamt-pagecache, yamt-nfs-mp-base9, yamt-nfs-mp-base8, yamt-nfs-mp-base7, yamt-nfs-mp-base6, yamt-nfs-mp-base5, yamt-nfs-mp-base4, yamt-nfs-mp-base3, yamt-nfs-mp-base11, yamt-nfs-mp-base10, uebayasi-xip-base7, uebayasi-xip-base6, uebayasi-xip-base5, uebayasi-xip-base4, uebayasi-xip-base3, uebayasi-xip-base2, uebayasi-xip-base1, uebayasi-xip-base, uebayasi-xip, tls-maxphys-base-20171202, tls-maxphys-base, tls-maxphys, tls-earlyentropy-base, tls-earlyentropy, rmind-uvmplock-nbase, rmind-uvmplock-base, rmind-uvmplock, rmind-smpnet-nbase, rmind-smpnet-base, rmind-smpnet, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3, riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2, prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, phil-wifi-base, phil-wifi-20190609, phil-wifi, pgoyette-localcount-base, pgoyette-localcount-20170426, pgoyette-localcount-20170320, pgoyette-localcount-20170107, pgoyette-localcount-20161104, pgoyette-localcount-20160806, pgoyette-localcount-20160726, pgoyette-localcount, pgoyette-compat-merge-20190127, pgoyette-compat-base, pgoyette-compat-20190127, pgoyette-compat-20190118, pgoyette-compat-1226, pgoyette-compat-1126, pgoyette-compat-1020, pgoyette-compat-0930, pgoyette-compat-0906, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315, pgoyette-compat, perseant-stdc-iso10646-base, perseant-stdc-iso10646, nick-nhusb-base-20170825, nick-nhusb-base-20170204, nick-nhusb-base-20161204, nick-nhusb-base-20161004, nick-nhusb-base-20160907, nick-nhusb-base-20160529, nick-nhusb-base-20160422, nick-nhusb-base-20160319, nick-nhusb-base-20151226, nick-nhusb-base-20150921, nick-nhusb-base-20150606, nick-nhusb-base-20150406, nick-nhusb-base, nick-nhusb, nick-hppapmap-base4, nick-hppapmap-base3, nick-hppapmap-base, netbsd-9-base, netbsd-9, netbsd-8-base, netbsd-8-1-RELEASE, netbsd-8-1-RC1, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1, netbsd-8, netbsd-7-nhusb-base-20170116, netbsd-7-nhusb-base, netbsd-7-nhusb, netbsd-7-base, netbsd-7-2-RELEASE, netbsd-7-1-RELEASE, netbsd-7-1-RC2, netbsd-7-1-RC1, netbsd-7-1-2-RELEASE, netbsd-7-1-1-RELEASE, netbsd-7-1, netbsd-7-0-RELEASE, netbsd-7-0-RC3, netbsd-7-0-RC2, netbsd-7-0-RC1, netbsd-7-0-2-RELEASE, netbsd-7-0-1-RELEASE, netbsd-7-0, netbsd-7, netbsd-6-base, netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-5-RELEASE, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-1, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-6-RELEASE, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, netbsd-6-0, netbsd-6, matt-premerge-20091211, matt-nb8-mediatek-base, matt-nb8-mediatek, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus, matt-mips64-premerge-20101231, localcount-20160914, khorben-n900, jymxensuspend-base, jym-xensuspend-nbase, jym-xensuspend-base, jruoho-x86intr-base, jruoho-x86intr, jmcneill-usbmp-pre-base2, jmcneill-usbmp-base9, jmcneill-usbmp-base8, jmcneill-usbmp-base7, jmcneill-usbmp-base6, jmcneill-usbmp-base5, jmcneill-usbmp-base4, jmcneill-usbmp-base3, jmcneill-usbmp-base2, jmcneill-usbmp-base10, jmcneill-usbmp-base, jmcneill-usbmp, jmcneill-audiomp3-base, jmcneill-audiomp3, jdolecek-ncq-base, jdolecek-ncq, isaki-audio2-base, isaki-audio2, cherry-xenmp-base, cherry-xenmp, bouyer-socketcan-base1, bouyer-socketcan-base, bouyer-socketcan, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2, agc-symver-base, agc-symver, HEAD
Changes since 1.10: +3 -9 lines

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

/*	$NetBSD: devopen.c,v 1.11 2009/03/14 15:36:07 dsl Exp $	 */

/*
 * Copyright (c) 1996
 *	Matthias Drochner.  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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <lib/libsa/stand.h>
#include <lib/libkern/libkern.h>
#include <lib/libsa/ufs.h>

#include <libi386.h>
#include <biosdisk.h>
#include <dosfile.h>
#include <bootinfo.h>

struct devsw devsw[] = {
	{"disk", biosdisk_strategy, biosdisk_open, biosdisk_close, biosdisk_ioctl},
};
int ndevs = sizeof(devsw) / sizeof(struct devsw);

static struct fs_ops dosfs = {
	dos_open, dos_close, dos_read, dos_write, dos_seek, dos_stat
};
static struct fs_ops ufsfs = {
	ufs_open, ufs_close, ufs_read, ufs_write, ufs_seek, ufs_stat
};

struct fs_ops   file_system[] = {
	{0},
};
int  nfsys = 1;

static struct {
	char           *name;
	int             biosdev;
}               biosdevtab[] = {
	{
		"fd", 0
	},
	{
		"wd", 0x80
	},
	{
		"sd", 0x80
	},
	{
		"hd", 0x80
	}
};
#define NUMBIOSDEVS (sizeof(biosdevtab) / sizeof(biosdevtab[0]))

static int dev2bios(char *, unsigned int, int *);

static int
dev2bios(char *devname, unsigned int unit, int *biosdev)
{
	unsigned             i;

	for (i = 0; i < NUMBIOSDEVS; i++)
		if (!strcmp(devname, biosdevtab[i].name)) {
			*biosdev = biosdevtab[i].biosdev + unit;
			if (unit >= 4)	/* ??? */
				return (EUNIT);
			return (0);
		}
	return (ENXIO);
}

struct btinfo_bootpath bibp;

int
devopen(struct open_file *f, const char *fname, char **file)
{
	char           *devname;
	char           *fsmode;
	int             unit, partition;
	int             biosdev;
	int             error;
	struct devsw   *dp;

	if ((error = parsebootfile(fname, &fsmode, &devname, &unit,
	    &partition, (const char **) file)))
		return (error);

	if (!strcmp(fsmode, "dos")) {
		file_system[0] = dosfs;	/* structure assignment! */
		f->f_flags |= F_NODEV;	/* handled by DOS */
		return (0);
	} else if (!strcmp(fsmode, "ufs")) {
		if ((error = dev2bios(devname, unit, &biosdev)))
			return (error);
		file_system[0] = ufsfs;	/* structure assignment! */
		dp = &devsw[0];	/* must be biosdisk */
		f->f_dev = dp;

		strncpy(bibp.bootpath, *file, sizeof(bibp.bootpath));
		BI_ADD(&bibp, BTINFO_BOOTPATH, sizeof(bibp));

		return (biosdisk_open(f, biosdev, partition));
	} else {
		printf("no file system\n");
		return (ENXIO);
	}
	/* NOTREACHED */
}