common/cmd_ext2.c

   1 /*
   2  * (C) Copyright 2004
   3  * esd gmbh <www.esd-electronics.com>
   4  * Reinhard Arlt <reinhard.arlt@esd-electronics.com>
   5  *
   6  * made from cmd_reiserfs by
   7  *
   8  * (C) Copyright 2003 - 2004
   9  * Sysgo Real-Time Solutions, AG <www.elinos.com>
  10  * Pavel Bartusek <pba@sysgo.com>
  11  *
  12  * See file CREDITS for list of people who contributed to this
  13  * project.
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License as
  17  * published by the Free Software Foundation; either version 2 of
  18  * the License, or (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, write to the Free Software
  27  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  28  * MA 02111-1307 USA
  29  *
  30  */
  31
  32 /*
  33  * Ext2fs support
  34  */
  35 #include <common.h>
  36 #include <part.h>
  37 #include <config.h>
  38 #include <command.h>
  39 #include <image.h>
  40 #include <linux/ctype.h>
  41 #include <asm/byteorder.h>
  42 #include <ext2fs.h>
  43 #if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE)
  44 #include <usb.h>
  45 #endif
  46
  47 #ifndef CONFIG_DOS_PARTITION
  48 #error DOS partition support must be selected
  49 #endif
  50
  51 /* #define      EXT2_DEBUG */
  52
  53 #ifdef  EXT2_DEBUG
  54 #define PRINTF(fmt,args...)     printf (fmt ,##args)
  55 #else
  56 #define PRINTF(fmt,args...)
  57 #endif
  58
  59 int do_ext2ls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  60 {
  61         char *filename = "/";
  62         int dev=0;
  63         int part=1;
  64         char *ep;
  65         block_dev_desc_t *dev_desc=NULL;
  66         int part_length;
  67
  68         if (argc < 3) {
  69                 printf ("Usage:\n%s\n", cmdtp->usage);
  70                 return(1);
  71         }
  72         dev = (int)simple_strtoul (argv[2], &ep, 16);
  73         dev_desc = get_dev(argv[1],dev);
  74
  75         if (dev_desc == NULL) {
  76                 printf ("\n** Block device %s %d not supported\n", argv[1], dev);
  77                 return(1);
  78         }
  79
  80         if (*ep) {
  81                 if (*ep != ':') {
  82                         puts ("\n** Invalid boot device, use `dev[:part]' **\n");
  83                         return(1);
  84                 }
  85                 part = (int)simple_strtoul(++ep, NULL, 16);
  86         }
  87
  88         if (argc == 4) {
  89             filename = argv[3];
  90         }
  91
  92         PRINTF("Using device %s %d:%d, directory: %s\n", argv[1], dev, part, filename);
  93
  94         if ((part_length = ext2fs_set_blk_dev(dev_desc, part)) == 0) {
  95                 printf ("** Bad partition - %s %d:%d **\n",  argv[1], dev, part);
  96                 ext2fs_close();
  97                 return(1);
  98         }
  99
 100         if (!ext2fs_mount(part_length)) {
 101                 printf ("** Bad ext2 partition or disk - %s %d:%d **\n",  argv[1], dev, part);
 102                 ext2fs_close();
 103                 return(1);
 104         }
 105
 106         if (ext2fs_ls (filename)) {
 107                 printf ("** Error ext2fs_ls() **\n");
 108                 ext2fs_close();
 109                 return(1);
 110         };
 111
 112         ext2fs_close();
 113
 114         return(0);
 115 }
 116
 117 U_BOOT_CMD(
 118         ext2ls, 4,      1,      do_ext2ls,
 119         "ext2ls  - list files in a directory (default /)\n",
 120         "<interface> <dev[:part]> [directory]\n"
 121         "    - list files from 'dev' on 'interface' in a 'directory'\n"
 122 );
 123
 124 /******************************************************************************
 125  * Ext2fs boot command intepreter. Derived from diskboot
 126  */
 127 int do_ext2load (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 128 {
 129         char *filename = NULL;
 130         char *ep;
 131         int dev, part = 1;
 132         ulong addr = 0, part_length, filelen;
 133         disk_partition_t info;
 134         block_dev_desc_t *dev_desc = NULL;
 135         char buf [12];
 136         unsigned long count;
 137         char *addr_str;
 138
 139         switch (argc) {
 140         case 3:
 141                 addr_str = getenv("loadaddr");
 142                 if (addr_str != NULL) {
 143                         addr = simple_strtoul (addr_str, NULL, 16);
 144                 } else {
 145                         addr = CFG_LOAD_ADDR;
 146                 }
 147                 filename = getenv ("bootfile");
 148                 count = 0;
 149                 break;
 150         case 4:
 151                 addr = simple_strtoul (argv[3], NULL, 16);
 152                 filename = getenv ("bootfile");
 153                 count = 0;
 154                 break;
 155         case 5:
 156                 addr = simple_strtoul (argv[3], NULL, 16);
 157                 filename = argv[4];
 158                 count = 0;
 159                 break;
 160         case 6:
 161                 addr = simple_strtoul (argv[3], NULL, 16);
 162                 filename = argv[4];
 163                 count = simple_strtoul (argv[5], NULL, 16);
 164                 break;
 165
 166         default:
 167                 printf ("Usage:\n%s\n", cmdtp->usage);
 168                 return(1);
 169         }
 170
 171         if (!filename) {
 172                 puts ("\n** No boot file defined **\n");
 173                 return(1);
 174         }
 175
 176         dev = (int)simple_strtoul (argv[2], &ep, 16);
 177         dev_desc = get_dev(argv[1],dev);
 178         if (dev_desc==NULL) {
 179                 printf ("\n** Block device %s %d not supported\n", argv[1], dev);
 180                 return(1);
 181         }
 182         if (*ep) {
 183                 if (*ep != ':') {
 184                         puts ("\n** Invalid boot device, use `dev[:part]' **\n");
 185                         return(1);
 186                 }
 187                 part = (int)simple_strtoul(++ep, NULL, 16);
 188         }
 189
 190         PRINTF("Using device %s%d, partition %d\n", argv[1], dev, part);
 191
 192         if (part != 0) {
 193                 if (get_partition_info (dev_desc, part, &info)) {
 194                         printf ("** Bad partition %d **\n", part);
 195                         return(1);
 196                 }
 197
 198                 if (strncmp((char *)info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) {
 199                         printf ("\n** Invalid partition type \"%.32s\""
 200                                 " (expect \"" BOOT_PART_TYPE "\")\n",
 201                                 info.type);
 202                         return(1);
 203                 }
 204                 PRINTF ("\nLoading from block device %s device %d, partition %d: "
 205                         "Name: %.32s  Type: %.32s  File:%s\n",
 206                         argv[1], dev, part, info.name, info.type, filename);
 207         } else {
 208                 PRINTF ("\nLoading from block device %s device %d, File:%s\n",
 209                         argv[1], dev, filename);
 210         }
 211
 212
 213         if ((part_length = ext2fs_set_blk_dev(dev_desc, part)) == 0) {
 214                 printf ("** Bad partition - %s %d:%d **\n",  argv[1], dev, part);
 215                 ext2fs_close();
 216                 return(1);
 217         }
 218
 219         if (!ext2fs_mount(part_length)) {
 220                 printf ("** Bad ext2 partition or disk - %s %d:%d **\n",  argv[1], dev, part);
 221                 ext2fs_close();
 222                 return(1);
 223         }
 224
 225         filelen = ext2fs_open(filename);
 226         if (filelen < 0) {
 227                 printf("** File not found %s\n", filename);
 228                 ext2fs_close();
 229                 return(1);
 230         }
 231         if ((count < filelen) && (count != 0)) {
 232             filelen = count;
 233         }
 234
 235         if (ext2fs_read((char *)addr, filelen) != filelen) {
 236                 printf("\n** Unable to read \"%s\" from %s %d:%d **\n", filename, argv[1], dev, part);
 237                 ext2fs_close();
 238                 return(1);
 239         }
 240
 241         ext2fs_close();
 242
 243         /* Loading ok, update default load address */
 244         load_addr = addr;
 245
 246         printf ("\n%ld bytes read\n", filelen);
 247         sprintf(buf, "%lX", filelen);
 248         setenv("filesize", buf);
 249
 250         return(filelen);
 251 }
 252
 253 U_BOOT_CMD(
 254         ext2load,       6,      0,      do_ext2load,
 255         "ext2load- load binary file from a Ext2 filesystem\n",
 256         "<interface> <dev[:part]> [addr] [filename] [bytes]\n"
 257         "    - load binary file 'filename' from 'dev' on 'interface'\n"
 258         "      to address 'addr' from ext2 filesystem\n"
 259 );