sys/arch/hpcmips/stand/libsa/devopen.c

   1 /*      $NetBSD: devopen.c,v 1.5 2009/03/14 15:36:07 dsl Exp $  */
   2
   3 /*-
   4  * Copyright (c) 1999 Shin Takemura.
   5  * All rights reserved.
   6  *
   7  * This software is part of the PocketBSD.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed by the PocketBSD project
  20  *      and its contributors.
  21  * 4. Neither the name of the project nor the names of its contributors
  22  *    may be used to endorse or promote products derived from this software
  23  *    without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35  * SUCH DAMAGE.
  36  *
  37  */
  38 #define STANDALONE_WINDOWS_SIDE
  39 #include <stand.h>
  40 #include <winblk.h>
  41 #include <winfs.h>
  42 #include <lib/libsa/ufs.h>
  43
  44 extern int parsebootfile(const char *, char**, char**, unsigned int*,
  45                               unsigned int*, const char**);
  46
  47 struct devsw devsw[] = {
  48         {"winblk", winblkstrategy, winblkopen, winblkclose, winblkioctl },
  49 };
  50 int ndevs = sizeof(devsw) / sizeof(struct devsw);
  51
  52 static struct fs_ops winop = {
  53         win_open, win_close, win_read, win_write, win_seek, win_stat
  54 };
  55
  56 static struct fs_ops ufsop = {
  57         ufs_open, ufs_close, ufs_read, ufs_write, ufs_seek, ufs_stat
  58 };
  59
  60 struct fs_ops   file_system[] = {
  61         { 0 },
  62 };
  63 int nfsys = 1;
  64
  65 int
  66 parsebootfile(const char *fnamexx, char **fsmode, char **devname, unsigned int *unit, unsigned int *partition, const char **file)
  67         /* fsmode:  out */
  68         /* devname:  out */
  69         /* unit, *partition:  out */
  70         /* file:  out */
  71 {
  72         TCHAR *fname = (TCHAR*)fnamexx;
  73
  74         if (fname[0] == TEXT('\\')) {
  75                 *fsmode = "win";
  76                 *devname = "";
  77                 *unit = 0;
  78                 *partition = 0;
  79                 *file = fname;
  80         } else {
  81                 static char name[1024]; /* XXX */
  82
  83                 if (wcstombs(name, (TCHAR*)fname, sizeof(name)) < 0) {
  84                         return (ENOENT);
  85                 }
  86                 if ('1' <= name[0] && name[0] <= '9' && name[1] == ':') {
  87                         *unit = name[0] - '0';
  88                         *file = &name[2];
  89                 } else {
  90                         *unit = 1;
  91                         *file = name;
  92                 }
  93                 *fsmode = "ufs";
  94                 *devname = "DSK";
  95                 *partition = 0;
  96         }
  97
  98         return (0);
  99 }
 100
 101
 102 int
 103 devopen(struct open_file *f, const char *fname, char **file)
 104 {
 105         char           *devname;
 106         char           *fsmode;
 107         unsigned int    unit, partition;
 108         int             error;
 109
 110         if ((error = parsebootfile(fname, &fsmode, &devname, &unit,
 111             &partition, (const char **) file)))
 112                 return (error);
 113
 114         if (!strcmp(fsmode, "win")) {
 115                 file_system[0] = winop;
 116                 f->f_flags |= F_NODEV;  /* handled by Windows */
 117                 return (0);
 118         } else
 119         if (!strcmp(fsmode, "ufs")) {
 120                 file_system[0] = ufsop;
 121                 f->f_dev = &devsw[0];   /* Windows block device. */
 122                 return (*f->f_dev->dv_open)(f, devname, unit, partition);
 123         } else {
 124                 printf("no file system\n");
 125                 return (ENXIO);
 126         }
 127         /* NOTREACHED */
 128 }