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/*
* (C) Copyright 2011 - 2012 Samsung Electronics
* EXT2/4 filesystem implementation in Uboot by
* Uma Shankar <uma.shankar@samsung.com>
* Manjunatha C Achar <a.manjunatha@samsung.com>
*
* Ext4fs support
* made from existing cmd_ext2.c file of Uboot
*
* (C) Copyright 2004
* esd gmbh <www.esd-electronics.com>
* Reinhard Arlt <reinhard.arlt@esd-electronics.com>
*
* made from cmd_reiserfs by
*
* (C) Copyright 2003 - 2004
* Sysgo Real-Time Solutions, AG <www.elinos.com>
* Pavel Bartusek <pba@sysgo.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*/
/*
* Changelog:
* 0.1 - Newly created file for ext4fs support. Taken from cmd_ext2.c
* file in uboot. Added ext4fs ls load and write support.
*/
#include <common.h>
#include <part.h>
#include <config.h>
#include <command.h>
#include <image.h>
#include <linux/ctype.h>
#include <asm/byteorder.h>
#include <ext_common.h>
#include <ext4fs.h>
#include <linux/stat.h>
#include <malloc.h>
#if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE)
#include <usb.h>
#endif
#if !defined(CONFIG_DOS_PARTITION) && !defined(CONFIG_EFI_PARTITION)
#error DOS or EFI partition support must be selected
#endif
#define DOS_PART_MAGIC_OFFSET 0x1fe
#define DOS_FS_TYPE_OFFSET 0x36
#define DOS_FS32_TYPE_OFFSET 0x52
int do_ext_load(cmd_tbl_t *cmdtp, int flag, int argc,
char *const argv[])
{
char *filename = NULL;
char *ep;
int dev;
unsigned long part = 1;
ulong addr = 0;
ulong part_length;
int filelen;
disk_partition_t info;
char buf[12];
unsigned long count;
const char *addr_str;
count = 0;
addr = simple_strtoul(argv[3], NULL, 16);
filename = getenv("bootfile");
switch (argc) {
case 3:
addr_str = getenv("loadaddr");
if (addr_str != NULL)
addr = simple_strtoul(addr_str, NULL, 16);
else
addr = CONFIG_SYS_LOAD_ADDR;
break;
case 4:
break;
case 5:
filename = argv[4];
break;
case 6:
filename = argv[4];
count = simple_strtoul(argv[5], NULL, 16);
break;
default:
return cmd_usage(cmdtp);
}
if (!filename) {
puts("** No boot file defined **\n");
return 1;
}
dev = (int)simple_strtoul(argv[2], &ep, 16);
ext4_dev_desc = get_dev(argv[1], dev);
if (ext4_dev_desc == NULL) {
printf("** Block device %s %d not supported\n", argv[1], dev);
return 1;
}
if (*ep) {
if (*ep != ':') {
puts("** Invalid boot device, use `dev[:part]' **\n");
goto fail;
}
part = simple_strtoul(++ep, NULL, 16);
}
if (part != 0) {
if (get_partition_info(ext4_dev_desc, part, &info)) {
printf("** Bad partition %lu **\n", part);
goto fail;
}
if (strncmp((char *)info.type, BOOT_PART_TYPE,
strlen(BOOT_PART_TYPE)) != 0) {
printf("** Invalid partition type \"%s\""
" (expect \"" BOOT_PART_TYPE "\")\n", info.type);
goto fail;
}
printf("Loading file \"%s\" "
"from %s device %d:%lu %s\n",
filename, argv[1], dev, part, info.name);
} else {
printf("Loading file \"%s\" from %s device %d\n",
filename, argv[1], dev);
}
part_length = ext4fs_set_blk_dev(ext4_dev_desc, part);
if (part_length == 0) {
printf("**Bad partition - %s %d:%lu **\n", argv[1], dev, part);
ext4fs_close();
goto fail;
}
if (!ext4fs_mount(part_length)) {
printf("** Bad ext2 partition or disk - %s %d:%lu **\n",
argv[1], dev, part);
ext4fs_close();
goto fail;
}
filelen = ext4fs_open(filename);
if (filelen < 0) {
printf("** File not found %s\n", filename);
ext4fs_close();
goto fail;
}
if ((count < filelen) && (count != 0))
filelen = count;
if (ext4fs_read((char *)addr, filelen) != filelen) {
printf("** Unable to read \"%s\" from %s %d:%lu **\n",
filename, argv[1], dev, part);
ext4fs_close();
goto fail;
}
ext4fs_close();
/* Loading ok, update default load address */
load_addr = addr;
printf("%d bytes read\n", filelen);
sprintf(buf, "%X", filelen);
setenv("filesize", buf);
return 0;
fail:
return 1;
}
int do_ext_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
const char *filename = "/";
int dev;
unsigned long part = 1;
char *ep;
int part_length;
if (argc < 3)
return cmd_usage(cmdtp);
dev = (int)simple_strtoul(argv[2], &ep, 16);
ext4_dev_desc = get_dev(argv[1], dev);
if (ext4_dev_desc == NULL) {
printf("\n** Block device %s %d not supported\n", argv[1], dev);
return 1;
}
if (*ep) {
if (*ep != ':') {
puts("\n** Invalid boot device, use `dev[:part]' **\n");
goto fail;
}
part = simple_strtoul(++ep, NULL, 16);
}
if (argc == 4)
filename = argv[3];
part_length = ext4fs_set_blk_dev(ext4_dev_desc, part);
if (part_length == 0) {
printf("** Bad partition - %s %d:%lu **\n", argv[1], dev, part);
ext4fs_close();
goto fail;
}
if (!ext4fs_mount(part_length)) {
printf("** Bad ext2 partition or disk - %s %d:%lu **\n",
argv[1], dev, part);
ext4fs_close();
goto fail;
}
if (ext4fs_ls(filename)) {
printf("** Error extfs_ls() **\n");
ext4fs_close();
goto fail;
};
ext4fs_close();
return 0;
fail:
return 1;
}
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