fs/fdos/fdos.c

   1 /*
   2  * (C) Copyright 2002
   3  * Stäubli Faverges - <www.staubli.com>
   4  * Pierre AUBERT  p.aubert@staubli.com
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #include <common.h>
  10 #include <config.h>
  11 #include <malloc.h>
  12
  13 #include "dos.h"
  14 #include "fdos.h"
  15
  16
  17 const char *month [] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
  18
  19 Fs_t    fs;
  20 File_t  file;
  21
  22 /*-----------------------------------------------------------------------------
  23  * dos_open --
  24  *-----------------------------------------------------------------------------
  25  */
  26 int dos_open(char *name)
  27 {
  28     int lg;
  29     int entry;
  30     char *fname;
  31
  32     /* We need to suppress the " char around the name                        */
  33     if (name [0] == '"') {
  34         name ++;
  35     }
  36     lg = strlen (name);
  37     if (name [lg - 1] == '"') {
  38         name [lg - 1] = '\0';
  39     }
  40
  41     /* Open file system                                                      */
  42     if (fs_init (&fs) < 0) {
  43         return -1;
  44     }
  45
  46     /* Init the file descriptor                                              */
  47     file.name = name;
  48     file.fs = &fs;
  49
  50     /* find the subdirectory containing the file                             */
  51     if (open_subdir (&file) < 0) {
  52         return (-1);
  53     }
  54
  55     fname = basename (name);
  56
  57     /* if we try to open root directory                                      */
  58     if (*fname == '\0') {
  59         file.file = file.subdir;
  60         return (0);
  61     }
  62
  63     /* find the file in the subdir                                           */
  64     entry = 0;
  65     if (vfat_lookup (&file.subdir,
  66                      file.fs,
  67                      &file.file.dir,
  68                      &entry,
  69                      0,
  70                      fname,
  71                      ACCEPT_DIR | ACCEPT_PLAIN | SINGLE | DO_OPEN,
  72                      0,
  73                      &file.file) != 0) {
  74         /* File not found                                                    */
  75         printf ("File not found\n");
  76         return (-1);
  77     }
  78
  79     return 0;
  80 }
  81
  82 /*-----------------------------------------------------------------------------
  83  * dos_read --
  84  *-----------------------------------------------------------------------------
  85  */
  86 int dos_read (ulong addr)
  87 {
  88     int read = 0, nb;
  89
  90     /* Try to boot a directory ?                                             */
  91     if (file.file.dir.attr & (ATTR_DIRECTORY | ATTR_VOLUME)) {
  92         printf ("Unable to boot %s !!\n", file.name);
  93         return (-1);
  94     }
  95     while (read < file.file.FileSize) {
  96         PRINTF ("read_file (%ld)\n", (file.file.FileSize - read));
  97         nb = read_file (&fs,
  98                         &file.file,
  99                         (char *)addr + read,
 100                         read,
 101                         (file.file.FileSize - read));
 102         PRINTF ("read_file -> %d\n", nb);
 103         if (nb < 0) {
 104             printf ("read error\n");
 105             return (-1);
 106         }
 107         read += nb;
 108     }
 109     return (read);
 110 }
 111 /*-----------------------------------------------------------------------------
 112  * dos_dir --
 113  *-----------------------------------------------------------------------------
 114  */
 115 int dos_dir (void)
 116 {
 117     int entry;
 118     Directory_t dir;
 119     char *name;
 120
 121
 122     if ((file.file.dir.attr & ATTR_DIRECTORY) == 0) {
 123         printf ("%s: not a directory !!\n", file.name);
 124         return (1);
 125     }
 126     entry = 0;
 127     if ((name = malloc (MAX_VNAMELEN + 1)) == NULL) {
 128         PRINTF ("Allcation error\n");
 129         return (1);
 130     }
 131
 132     while (vfat_lookup (&file.file,
 133                         file.fs,
 134                         &dir,
 135                         &entry,
 136                         0,
 137                         NULL,
 138                         ACCEPT_DIR | ACCEPT_PLAIN | MATCH_ANY,
 139                         name,
 140                         NULL) == 0) {
 141         /* Display file info                                                 */
 142         printf ("%3.3s %9d %s %02d %04d %02d:%02d:%02d %s\n",
 143                 (dir.attr & ATTR_DIRECTORY) ? "dir" : "   ",
 144                 __le32_to_cpu (dir.size),
 145                 month [DOS_MONTH (&dir) - 1],
 146                 DOS_DAY (&dir),
 147                 DOS_YEAR (&dir),
 148                 DOS_HOUR (&dir),
 149                 DOS_MINUTE (&dir),
 150                 DOS_SEC (&dir),
 151                 name);
 152
 153     }
 154     free (name);
 155     return (0);
 156 }