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Diffstat (limited to 'common/cmd_ext4.c')
| -rwxr-xr-x | common/cmd_ext4.c | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/common/cmd_ext4.c b/common/cmd_ext4.c new file mode 100755 index 0000000..490386b --- /dev/null +++ b/common/cmd_ext4.c @@ -0,0 +1,250 @@ +/* + * (C) Copyright 2011 - 2012 Samsung Electronics + * EXT4 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 + +extern int ext4_format(void); +int do_ext4_load(cmd_tbl_t *cmdtp, int flag, int argc, + char *const argv[]) +{ + if (do_ext_load(cmdtp, flag, argc, argv)) + return -1; + + return 0; +} + +int do_ext4_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) +{ + if (do_ext_ls(cmdtp, flag, argc, argv)) + return -1; + + return 0; +} + + +int do_ext4_write(cmd_tbl_t *cmdtp, int flag, int argc, + char *const argv[]) +{ + const char *filename = "/"; + int dev, part; + char *ep; + unsigned long ram_address; + unsigned long file_size; + disk_partition_t info; + block_dev_desc_t *dev_desc; + struct ext_filesystem *fs = get_fs(); + + if (argc < 6) { + printf ("Usage:\n%s\n", cmdtp->help); + return(1); + } + dev = (int)simple_strtoul (argv[2], &ep, 16); + dev_desc=get_dev(argv[1],dev); + + if (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"); + return(1); + } + part = (int)simple_strtoul(++ep, NULL, 16); + } + + + /* get the filename */ + filename = argv[4]; + + /* get the address in hexadecimal format (string to int) */ + ram_address = simple_strtoul(argv[3], NULL, 16); + + /* get the filesize in base 10 format */ + file_size = simple_strtoul(argv[5], NULL, 16); + + + if (part == 0) { + /* disk doesn't use partition table */ + info.start = 0; + info.size = dev_desc->lba; + info.blksz = dev_desc->blksz; + } else { + if (get_partition_info + (dev_desc, part, &info)) { + } + } + + + if (info.size == 0) { + printf ("** Bad partition - %s %d:%d **\n", argv[1], dev, part); + ext4fs_close(); + return(1); + } + + dev = dev_desc->dev; + /* set the device as block device */ + ext4fs_set_blk_dev(dev_desc, &info); + fs->dev_desc = dev_desc; + + /* mount the filesystem */ + if (!ext4fs_mount(info.size)) { + printf("Bad ext4 partition %s %d:%lu\n", argv[1], dev, part); + goto fail; + } + + /* start write */ + if (ext4fs_write(filename, (unsigned char *)ram_address, file_size)) { + printf("** Error ext4fs_write() **\n"); + goto fail; + } + ext4fs_close(); + + return 0; + +fail: + ext4fs_close(); + + return 1; + +} + +int do_ext4_format(cmd_tbl_t *cmdtp, int flag, int argc, + char *const argv[]) +{ + int dev=0; + int part=1; + int partition=1; + char *ep; + block_dev_desc_t *dev_desc=NULL; + disk_partition_t info; + struct ext_filesystem *fs = get_fs(); + + if (argc < 3) { + printf ("Usage:\n%s\n", cmdtp->help); + return(1); + } + dev = (int)simple_strtoul (argv[2], &ep, 16); + dev_desc=get_dev(argv[1],dev); + + if (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"); + return(1); + } + part = (int)simple_strtoul(++ep, NULL, 16); + + } + + + if (part == 0) { + /* disk doesn't use partition table */ + info.start = 0; + info.size = dev_desc->lba; + info.blksz = dev_desc->blksz; + } else { + if (get_partition_info + (dev_desc, part, &info)) { + } + } + + + if (info.size == 0) { + printf ("** Bad partition - %s %d:%d **\n", argv[1], dev, part); + ext4fs_close(); + return(1); + } + + dev = dev_desc->dev; + /* set the device as block device */ + ext4fs_set_blk_dev(dev_desc, &info); + fs->dev_desc = dev_desc; + + return ext4_format(); + +} + + + +U_BOOT_CMD(mkfsext4, 3, 1, do_ext4_format, + "format the partition to ext4", + "<interface> <dev:part> \n" + " -format a partition to ext4"); + +U_BOOT_CMD(ext4write, 6, 1, do_ext4_write, + "create a file in the root directory", + "<interface> <dev:part> <Address(hex)> <Absolute filename path> <sizebytes(hex)>\n" + " - create a file in / directory"); + + + +U_BOOT_CMD(ext4ls, 4, 1, do_ext4_ls, + "list files in a directory (default /)", + "<interface> <dev:part> [directory]\n" + " - list files from 'dev' on 'interface' in a 'directory'"); + + +U_BOOT_CMD(ext4load, 6, 0, do_ext4_load, + "load binary file from a Ext4 filesystem", + "<interface> <dev:part> <addr> <filename> [bytes]\n" + " - load binary file 'filename' from 'dev' on 'interface'\n" + " to address 'addr' from ext4 filesystem"); |