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Annotation of sys/arch/hppa64/stand/libsa/dk.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: dk.c,v 1.1 2005/04/01 10:40:48 mickey Exp $   */
        !             2:
        !             3: /*
        !             4:  * Copyright 1996 1995 by Open Software Foundation, Inc.
        !             5:  *              All Rights Reserved
        !             6:  *
        !             7:  * Permission to use, copy, modify, and distribute this software and
        !             8:  * its documentation for any purpose and without fee is hereby granted,
        !             9:  * provided that the above copyright notice appears in all copies and
        !            10:  * that both the copyright notice and this permission notice appear in
        !            11:  * supporting documentation.
        !            12:  *
        !            13:  * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
        !            14:  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
        !            15:  * FOR A PARTICULAR PURPOSE.
        !            16:  *
        !            17:  * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
        !            18:  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
        !            19:  * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
        !            20:  * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
        !            21:  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            22:  *
        !            23:  */
        !            24:
        !            25: #include "libsa.h"
        !            26:
        !            27: #include <sys/param.h>
        !            28: #include <sys/disklabel.h>
        !            29: #include <sys/reboot.h>
        !            30: #include <machine/pdc.h>
        !            31: #include <machine/iomod.h>
        !            32:
        !            33: #include "dev_hppa64.h"
        !            34:
        !            35: const char *
        !            36: dk_disklabel(struct hppa_dev *dp, struct disklabel *label)
        !            37: {
        !            38:        char buf[DEV_BSIZE];
        !            39:        size_t ret;
        !            40:
        !            41:        if (iodcstrategy(dp, F_READ, LABELSECTOR, DEV_BSIZE, buf, &ret))
        !            42:                if (ret != DEV_BSIZE)
        !            43:                        return "cannot read disklabel";
        !            44:
        !            45:        return (getdisklabel(buf, label));
        !            46: }
        !            47:
        !            48: int
        !            49: dkopen(struct open_file *f, ...)
        !            50: {
        !            51:        struct disklabel *lp;
        !            52:        struct hppa_dev *dp = f->f_devdata;
        !            53:        const char *st;
        !            54:
        !            55: #ifdef DEBUG
        !            56:        if (debug)
        !            57:                printf("dkopen(%p)\n", f);
        !            58: #endif
        !            59:
        !            60:        if (!(dp->pz_dev = pdc_findev(-1, PCL_RANDOM)))
        !            61:                return ENXIO;
        !            62:
        !            63:        lp = dp->label;
        !            64:        st = NULL;
        !            65:
        !            66: #ifdef DEBUG
        !            67:        if (debug)
        !            68:                printf ("disklabel\n");
        !            69: #endif
        !            70:
        !            71:        if ((st = dk_disklabel(dp, lp)) != NULL) {
        !            72: #ifdef DEBUG
        !            73:                if (debug)
        !            74:                        printf ("dkopen: %s\n", st);
        !            75: #endif
        !            76:                /* we do not know if it's a disk or net, but do not fail */
        !            77:        } else {
        !            78:                u_int i;
        !            79:
        !            80:                i = B_PARTITION(dp->bootdev);
        !            81:                if (i >= lp->d_npartitions || !lp->d_partitions[i].p_size)
        !            82:                        return (EPART);
        !            83:
        !            84:                dp->fsoff = lp->d_partitions[i].p_offset;
        !            85:        }
        !            86:
        !            87: #ifdef DEBUGBUG
        !            88:        if (debug)
        !            89:                printf ("dkopen() ret\n");
        !            90: #endif
        !            91:        return (0);
        !            92: }
        !            93:
        !            94: int
        !            95: dkclose(f)
        !            96:        struct open_file *f;
        !            97: {
        !            98:        free (f->f_devdata, sizeof(struct hppa_dev));
        !            99:        f->f_devdata = NULL;
        !           100:        return 0;
        !           101: }