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 #include <malloc.h>
  28
  29 #include "dos.h"
  30 #include "fdos.h"
  31
  32
  33 const char *month [] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
  34
  35 Fs_t    fs;
  36 File_t  file;
  37
  38 /*-----------------------------------------------------------------------------
  39  * dos_open --
  40  *-----------------------------------------------------------------------------
  41  */
  42 int dos_open(char *name)
  43 {
  44     int lg;
  45     int entry;
  46     char *fname;
  47
  48     /* We need to suppress the " char around the name                        */
  49     if (name [0] == '"') {
  50         name ++;
  51     }
  52     lg = strlen (name);
  53     if (name [lg - 1] == '"') {
  54         name [lg - 1] = '\0';
  55     }
  56
  57     /* Open file system                                                      */
  58     if (fs_init (&fs) < 0) {
  59         return -1;
  60     }
  61
  62     /* Init the file descriptor                                              */
  63     file.name = name;
  64     file.fs = &fs;
  65
  66     /* find the subdirectory containing the file                             */
  67     if (open_subdir (&file) < 0) {
  68         return (-1);
  69     }
  70
  71     fname = basename (name);
  72
  73     /* if we try to open root directory                                      */
  74     if (*fname == '\0') {
  75         file.file = file.subdir;
  76         return (0);
  77     }
  78
  79     /* find the file in the subdir                                           */
  80     entry = 0;
  81     if (vfat_lookup (&file.subdir,
  82                      file.fs,
  83                      &file.file.dir,
  84                      &entry,
  85                      0,
  86                      fname,
  87                      ACCEPT_DIR | ACCEPT_PLAIN | SINGLE | DO_OPEN,
  88                      0,
  89                      &file.file) != 0) {
  90         /* File not found                                                    */
  91         printf ("File not found\n");
  92         return (-1);
  93     }
  94
  95     return 0;
  96 }
  97
  98 /*-----------------------------------------------------------------------------
  99  * dos_read --
 100  *-----------------------------------------------------------------------------
 101  */
 102 int dos_read (ulong addr)
 103 {
 104     int read = 0, nb;
 105
 106     /* Try to boot a directory ?                                             */
 107     if (file.file.dir.attr & (ATTR_DIRECTORY | ATTR_VOLUME)) {
 108         printf ("Unable to boot %s !!\n", file.name);
 109         return (-1);
 110     }
 111     while (read < file.file.FileSize) {
 112         PRINTF ("read_file (%ld)\n", (file.file.FileSize - read));
 113         nb = read_file (&fs,
 114                         &file.file,
 115                         (char *)addr + read,
 116                         read,
 117                         (file.file.FileSize - read));
 118         PRINTF ("read_file -> %d\n", nb);
 119         if (nb < 0) {
 120             printf ("read error\n");
 121             return (-1);
 122         }
 123         read += nb;
 124     }
 125     return (read);
 126 }
 127 /*-----------------------------------------------------------------------------
 128  * dos_dir --
 129  *-----------------------------------------------------------------------------
 130  */
 131 int dos_dir (void)
 132 {
 133     int entry;
 134     Directory_t dir;
 135     char *name;
 136
 137
 138     if ((file.file.dir.attr & ATTR_DIRECTORY) == 0) {
 139         printf ("%s: not a directory !!\n", file.name);
 140         return (1);
 141     }
 142     entry = 0;
 143     if ((name = malloc (MAX_VNAMELEN + 1)) == NULL) {
 144         PRINTF ("Allcation error\n");
 145         return (1);
 146     }
 147
 148     while (vfat_lookup (&file.file,
 149                         file.fs,
 150                         &dir,
 151                         &entry,
 152                         0,
 153                         NULL,
 154                         ACCEPT_DIR | ACCEPT_PLAIN | MATCH_ANY,
 155                         name,
 156                         NULL) == 0) {
 157         /* Display file info                                                 */
 158         printf ("%3.3s %9d %s %02d %04d %02d:%02d:%02d %s\n",
 159                 (dir.attr & ATTR_DIRECTORY) ? "dir" : "   ",
 160                 __le32_to_cpu (dir.size),
 161                 month [DOS_MONTH (&dir) - 1],
 162                 DOS_DAY (&dir),
 163                 DOS_YEAR (&dir),
 164                 DOS_HOUR (&dir),
 165                 DOS_MINUTE (&dir),
 166                 DOS_SEC (&dir),
 167                 name);
 168
 169     }
 170     free (name);
 171     return (0);
 172 }