2012-05-26 00:51:44 +09:00
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/*
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* (C) Copyright 2011 - 2012 Samsung Electronics
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* EXT4 filesystem implementation in Uboot by
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* Uma Shankar <uma.shankar@samsung.com>
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* Manjunatha C Achar <a.manjunatha@samsung.com>
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*
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* Ext4fs support
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* made from existing cmd_ext2.c file of Uboot
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*
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* (C) Copyright 2004
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* esd gmbh <www.esd-electronics.com>
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* Reinhard Arlt <reinhard.arlt@esd-electronics.com>
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*
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* made from cmd_reiserfs by
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*
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* (C) Copyright 2003 - 2004
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* Sysgo Real-Time Solutions, AG <www.elinos.com>
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* Pavel Bartusek <pba@sysgo.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*/
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/*
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* Changelog:
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* 0.1 - Newly created file for ext4fs support. Taken from cmd_ext2.c
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* file in uboot. Added ext4fs ls load and write support.
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*/
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#include <common.h>
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#include <part.h>
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#include <config.h>
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#include <command.h>
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#include <image.h>
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#include <linux/ctype.h>
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#include <asm/byteorder.h>
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#include <ext_common.h>
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#include <ext4fs.h>
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#include <linux/stat.h>
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#include <malloc.h>
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#if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE)
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#include <usb.h>
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#endif
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#if !defined(CONFIG_DOS_PARTITION) && !defined(CONFIG_EFI_PARTITION)
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#error DOS or EFI partition support must be selected
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#endif
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uint64_t total_sector;
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uint64_t part_offset;
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2012-05-26 00:52:49 +09:00
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#if defined(CONFIG_CMD_EXT4_WRITE)
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static uint64_t part_size;
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static uint16_t cur_part = 1;
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#endif
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2012-05-26 00:51:44 +09:00
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#define DOS_PART_MAGIC_OFFSET 0x1fe
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#define DOS_FS_TYPE_OFFSET 0x36
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#define DOS_FS32_TYPE_OFFSET 0x52
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int do_ext4_load(cmd_tbl_t *cmdtp, int flag, int argc,
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char *const argv[])
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{
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if (do_ext_load(cmdtp, flag, argc, argv))
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return -1;
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return 0;
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}
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int do_ext4_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
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{
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if (do_ext_ls(cmdtp, flag, argc, argv))
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return -1;
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return 0;
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}
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2012-05-26 00:52:49 +09:00
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#if defined(CONFIG_CMD_EXT4_WRITE)
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static int ext4_register_device(block_dev_desc_t *dev_desc, int part_no)
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{
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unsigned char buffer[SECTOR_SIZE];
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disk_partition_t info;
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if (!dev_desc->block_read)
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return -1;
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/* check if we have a MBR (on floppies we have only a PBR) */
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if (dev_desc->block_read(dev_desc->dev, 0, 1, (ulong *) buffer) != 1) {
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printf("** Can't read from device %d **\n", dev_desc->dev);
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return -1;
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}
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if (buffer[DOS_PART_MAGIC_OFFSET] != 0x55 ||
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buffer[DOS_PART_MAGIC_OFFSET + 1] != 0xaa) {
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/* no signature found */
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return -1;
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}
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/* First we assume there is a MBR */
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if (!get_partition_info(dev_desc, part_no, &info)) {
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part_offset = info.start;
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cur_part = part_no;
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part_size = info.size;
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} else if ((strncmp((char *)&buffer[DOS_FS_TYPE_OFFSET],
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"FAT", 3) == 0) || (strncmp((char *)&buffer
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[DOS_FS32_TYPE_OFFSET],
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"FAT32", 5) == 0)) {
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/* ok, we assume we are on a PBR only */
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cur_part = 1;
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part_offset = 0;
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} else {
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printf("** Partition %d not valid on device %d **\n",
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part_no, dev_desc->dev);
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return -1;
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}
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return 0;
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}
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int do_ext4_write(cmd_tbl_t *cmdtp, int flag, int argc,
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char *const argv[])
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{
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const char *filename = "/";
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int part_length;
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unsigned long part = 1;
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int dev;
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char *ep;
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unsigned long ram_address;
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unsigned long file_size;
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disk_partition_t info;
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struct ext_filesystem *fs;
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if (argc < 6)
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return cmd_usage(cmdtp);
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dev = (int)simple_strtoul(argv[2], &ep, 16);
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ext4_dev_desc = get_dev(argv[1], dev);
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if (ext4_dev_desc == NULL) {
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printf("Block device %s %d not supported\n", argv[1], dev);
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return 1;
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}
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if (init_fs(ext4_dev_desc))
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return 1;
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fs = get_fs();
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if (*ep) {
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if (*ep != ':') {
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puts("Invalid boot device, use `dev[:part]'\n");
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goto fail;
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}
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part = simple_strtoul(++ep, NULL, 16);
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}
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/* get the filename */
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filename = argv[3];
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/* get the address in hexadecimal format (string to int) */
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ram_address = simple_strtoul(argv[4], NULL, 16);
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/* get the filesize in base 10 format */
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file_size = simple_strtoul(argv[5], NULL, 10);
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/* set the device as block device */
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part_length = ext4fs_set_blk_dev(fs->dev_desc, part);
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if (part_length == 0) {
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printf("Bad partition - %s %d:%lu\n", argv[1], dev, part);
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goto fail;
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}
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/* register the device and partition */
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if (ext4_register_device(fs->dev_desc, part) != 0) {
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printf("Unable to use %s %d:%lu for fattable\n",
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argv[1], dev, part);
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goto fail;
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}
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/* get the partition information */
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if (!get_partition_info(fs->dev_desc, part, &info)) {
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total_sector = (info.size * info.blksz) / SECTOR_SIZE;
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fs->total_sect = total_sector;
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} else {
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printf("error : get partition info\n");
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goto fail;
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}
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/* mount the filesystem */
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if (!ext4fs_mount(part_length)) {
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printf("Bad ext4 partition %s %d:%lu\n", argv[1], dev, part);
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goto fail;
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}
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/* start write */
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if (ext4fs_write(filename, (unsigned char *)ram_address, file_size)) {
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printf("** Error ext4fs_write() **\n");
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goto fail;
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}
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ext4fs_close();
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deinit_fs(fs->dev_desc);
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return 0;
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fail:
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ext4fs_close();
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deinit_fs(fs->dev_desc);
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return 1;
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}
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U_BOOT_CMD(ext4write, 6, 1, do_ext4_write,
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"create a file in the root directory",
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"<interface> <dev[:part]> [Absolute filename path] [Address] [sizebytes]\n"
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" - create a file in / directory");
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#endif
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2012-05-26 00:51:44 +09:00
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U_BOOT_CMD(ext4ls, 4, 1, do_ext4_ls,
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"list files in a directory (default /)",
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"<interface> <dev[:part]> [directory]\n"
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" - list files from 'dev' on 'interface' in a 'directory'");
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U_BOOT_CMD(ext4load, 6, 0, do_ext4_load,
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"load binary file from a Ext4 filesystem",
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"<interface> <dev[:part]> [addr] [filename] [bytes]\n"
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" - load binary file 'filename' from 'dev' on 'interface'\n"
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" to address 'addr' from ext4 filesystem");
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