common/cmd_ubifs.c

   1 /*
   2  * (C) Copyright 2008
   3  * Stefan Roese, DENX Software Engineering, sr@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  *
  23  */
  24
  25
  26 /*
  27  * UBIFS command support
  28  */
  29
  30 #undef DEBUG
  31
  32 #include <common.h>
  33 #include <config.h>
  34 #include <command.h>
  35
  36 #include "../fs/ubifs/ubifs.h"
  37
  38 static int ubifs_initialized;
  39 static int ubifs_mounted;
  40
  41 extern struct super_block *ubifs_sb;
  42
  43 /* Prototypes */
  44 int ubifs_init(void);
  45 int ubifs_mount(char *vol_name);
  46 void ubifs_umount(struct ubifs_info *c);
  47 int ubifs_ls(char *dir_name);
  48 int ubifs_load(char *filename, u32 addr, u32 size);
  49
  50 int do_ubifs_mount(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  51 {
  52         char *vol_name;
  53         int ret;
  54
  55         if (argc != 2)
  56                 return CMD_RET_USAGE;
  57
  58         vol_name = argv[1];
  59         debug("Using volume %s\n", vol_name);
  60
  61         if (ubifs_initialized == 0) {
  62                 ubifs_init();
  63                 ubifs_initialized = 1;
  64         }
  65
  66         ret = ubifs_mount(vol_name);
  67         if (ret)
  68                 return -1;
  69
  70         ubifs_mounted = 1;
  71
  72         return 0;
  73 }
  74
  75 int ubifs_is_mounted(void)
  76 {
  77         return ubifs_mounted;
  78 }
  79
  80 void cmd_ubifs_umount(void)
  81 {
  82
  83         if (ubifs_sb) {
  84                 printf("Unmounting UBIFS volume %s!\n",
  85                        ((struct ubifs_info *)(ubifs_sb->s_fs_info))->vi.name);
  86                 ubifs_umount(ubifs_sb->s_fs_info);
  87         }
  88
  89         ubifs_sb = NULL;
  90         ubifs_mounted = 0;
  91         ubifs_initialized = 0;
  92 }
  93
  94 int do_ubifs_umount(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  95 {
  96         if (argc != 1)
  97                 return CMD_RET_USAGE;
  98
  99         if (ubifs_initialized == 0) {
 100                 printf("No UBIFS volume mounted!\n");
 101                 return -1;
 102         }
 103
 104         cmd_ubifs_umount();
 105
 106         return 0;
 107 }
 108
 109 int do_ubifs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 110 {
 111         char *filename = "/";
 112         int ret;
 113
 114         if (!ubifs_mounted) {
 115                 printf("UBIFS not mounted, use ubifsmount to mount volume first!\n");
 116                 return -1;
 117         }
 118
 119         if (argc == 2)
 120                 filename = argv[1];
 121         debug("Using filename %s\n", filename);
 122
 123         ret = ubifs_ls(filename);
 124         if (ret)
 125                 printf("%s not found!\n", filename);
 126
 127         return ret;
 128 }
 129
 130 int do_ubifs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 131 {
 132         char *filename;
 133         char *endp;
 134         int ret;
 135         u32 addr;
 136         u32 size = 0;
 137
 138         if (!ubifs_mounted) {
 139                 printf("UBIFS not mounted, use ubifs mount to mount volume first!\n");
 140                 return -1;
 141         }
 142
 143         if (argc < 3)
 144                 return CMD_RET_USAGE;
 145
 146         addr = simple_strtoul(argv[1], &endp, 16);
 147         if (endp == argv[1])
 148                 return CMD_RET_USAGE;
 149
 150         filename = argv[2];
 151
 152         if (argc == 4) {
 153                 size = simple_strtoul(argv[3], &endp, 16);
 154                 if (endp == argv[3])
 155                         return CMD_RET_USAGE;
 156         }
 157         debug("Loading file '%s' to address 0x%08x (size %d)\n", filename, addr, size);
 158
 159         ret = ubifs_load(filename, addr, size);
 160         if (ret)
 161                 printf("%s not found!\n", filename);
 162
 163         return ret;
 164 }
 165
 166 U_BOOT_CMD(
 167         ubifsmount, 2, 0, do_ubifs_mount,
 168         "mount UBIFS volume",
 169         "<volume-name>\n"
 170         "    - mount 'volume-name' volume"
 171 );
 172
 173 U_BOOT_CMD(
 174         ubifsumount, 1, 0, do_ubifs_umount,
 175         "unmount UBIFS volume",
 176         "    - unmount current volume"
 177 );
 178
 179 U_BOOT_CMD(
 180         ubifsls, 2, 0, do_ubifs_ls,
 181         "list files in a directory",
 182         "[directory]\n"
 183         "    - list files in a 'directory' (default '/')"
 184 );
 185
 186 U_BOOT_CMD(
 187         ubifsload, 4, 0, do_ubifs_load,
 188         "load file from an UBIFS filesystem",
 189         "<addr> <filename> [bytes]\n"
 190         "    - load file 'filename' to address 'addr'"
 191 );