fs/fdos/fdos.c

   1 /*
   2  * (C) Copyright 2002
   3  * Stäubli Faverges - <www.staubli.com>
   4  * Pierre AUBERT  p.aubert@staubli.com
   5  *
   6  * See file CREDITS for list of people who contributed to this
   7  * project.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22  * MA 02111-1307 USA
  23  */
  24
  25 #include <common.h>
  26 #include <config.h>
  27
  28 #if defined(CONFIG_CMD_FDOS)
  29 #include <malloc.h>
  30 #include "dos.h"
  31 #include "fdos.h"
  32
  33
  34 const char *month [] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
  35
  36 Fs_t    fs;
  37 File_t  file;
  38
  39 /*-----------------------------------------------------------------------------
  40  * dos_open --
  41  *-----------------------------------------------------------------------------
  42  */
  43 int dos_open(char *name)
  44 {
  45     int lg;
  46     int entry;
  47     char *fname;
  48
  49     /* We need to suppress the " char around the name                        */
  50     if (name [0] == '"') {
  51         name ++;
  52     }
  53     lg = strlen (name);
  54     if (name [lg - 1] == '"') {
  55         name [lg - 1] = '\0';
  56     }
  57
  58     /* Open file system                                                      */
  59     if (fs_init (&fs) < 0) {
  60         return -1;
  61     }
  62
  63     /* Init the file descriptor                                              */
  64     file.name = name;
  65     file.fs = &fs;
  66
  67     /* find the subdirectory containing the file                             */
  68     if (open_subdir (&file) < 0) {
  69         return (-1);
  70     }
  71
  72     fname = basename (name);
  73
  74     /* if we try to open root directory                                      */
  75     if (*fname == '\0') {
  76         file.file = file.subdir;
  77         return (0);
  78     }
  79
  80     /* find the file in the subdir                                           */
  81     entry = 0;
  82     if (vfat_lookup (&file.subdir,
  83                      file.fs,
  84                      &file.file.dir,
  85                      &entry,
  86                      0,
  87                      fname,
  88                      ACCEPT_DIR | ACCEPT_PLAIN | SINGLE | DO_OPEN,
  89                      0,
  90                      &file.file) != 0) {
  91         /* File not found                                                    */
  92         printf ("File not found\n");
  93         return (-1);
  94     }
  95
  96     return 0;
  97 }
  98
  99 /*-----------------------------------------------------------------------------
 100  * dos_read --
 101  *-----------------------------------------------------------------------------
 102  */
 103 int dos_read (ulong addr)
 104 {
 105     int read = 0, nb;
 106
 107     /* Try to boot a directory ?                                             */
 108     if (file.file.dir.attr & (ATTR_DIRECTORY | ATTR_VOLUME)) {
 109         printf ("Unable to boot %s !!\n", file.name);
 110         return (-1);
 111     }
 112     while (read < file.file.FileSize) {
 113         PRINTF ("read_file (%ld)\n", (file.file.FileSize - read));
 114         nb = read_file (&fs,
 115                         &file.file,
 116                         (char *)addr + read,
 117                         read,
 118                         (file.file.FileSize - read));
 119         PRINTF ("read_file -> %d\n", nb);
 120         if (nb < 0) {
 121             printf ("read error\n");
 122             return (-1);
 123         }
 124         read += nb;
 125     }
 126     return (read);
 127 }
 128 /*-----------------------------------------------------------------------------
 129  * dos_dir --
 130  *-----------------------------------------------------------------------------
 131  */
 132 int dos_dir (void)
 133 {
 134     int entry;
 135     Directory_t dir;
 136     char *name;
 137
 138
 139     if ((file.file.dir.attr & ATTR_DIRECTORY) == 0) {
 140         printf ("%s: not a directory !!\n", file.name);
 141         return (1);
 142     }
 143     entry = 0;
 144     if ((name = malloc (MAX_VNAMELEN + 1)) == NULL) {
 145         PRINTF ("Allcation error\n");
 146         return (1);
 147     }
 148
 149     while (vfat_lookup (&file.file,
 150                         file.fs,
 151                         &dir,
 152                         &entry,
 153                         0,
 154                         NULL,
 155                         ACCEPT_DIR | ACCEPT_PLAIN | MATCH_ANY,
 156                         name,
 157                         NULL) == 0) {
 158         /* Display file info                                                 */
 159         printf ("%3.3s %9d %s %02d %04d %02d:%02d:%02d %s\n",
 160                 (dir.attr & ATTR_DIRECTORY) ? "dir" : "   ",
 161                 __le32_to_cpu (dir.size),
 162                 month [DOS_MONTH (&dir) - 1],
 163                 DOS_DAY (&dir),
 164                 DOS_YEAR (&dir),
 165                 DOS_HOUR (&dir),
 166                 DOS_MINUTE (&dir),
 167                 DOS_SEC (&dir),
 168                 name);
 169
 170     }
 171     free (name);
 172     return (0);
 173 }
 174
 175 #endif