diff options
Diffstat (limited to 'common/cmd_ext_common.c')
| -rw-r--r-- | common/cmd_ext_common.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/common/cmd_ext_common.c b/common/cmd_ext_common.c new file mode 100644 index 0000000..1952f4d --- /dev/null +++ b/common/cmd_ext_common.c @@ -0,0 +1,197 @@ +/* + * (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; + int dev, part; + ulong addr = 0; + int filelen; + disk_partition_t info; + block_dev_desc_t *dev_desc; + 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; + } + + part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1); + if (part < 0) + return 1; + + dev = dev_desc->dev; + printf("Loading file \"%s\" from %s device %d%c%c\n", + filename, argv[1], dev, + part ? ':' : ' ', part ? part + '0' : ' '); + + ext4fs_set_blk_dev(dev_desc, &info); + + if (!ext4fs_mount(info.size)) { + printf("** Bad ext2 partition or disk - %s %d:%d **\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:%d **\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; + int part; + block_dev_desc_t *dev_desc; + disk_partition_t info; + + if (argc < 2) + return cmd_usage(cmdtp); + + part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1); + if (part < 0) + return 1; + + if (argc == 4) + filename = argv[3]; + + dev = dev_desc->dev; + ext4fs_set_blk_dev(dev_desc, &info); + + if (!ext4fs_mount(info.size)) { + printf("** Bad ext2 partition or disk - %s %d:%d **\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; +} |