diff options
Diffstat (limited to 'common/cmd_ext_common.c')
| -rwxr-xr-x | common/cmd_ext_common.c | 359 |
1 files changed, 359 insertions, 0 deletions
diff --git a/common/cmd_ext_common.c b/common/cmd_ext_common.c new file mode 100755 index 0000000..4d9b663 --- /dev/null +++ b/common/cmd_ext_common.c @@ -0,0 +1,359 @@ +/* + * (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 + + +#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, part = 1; + ulong addr = 0, part_length, filelen; + disk_partition_t info; + block_dev_desc_t *dev_desc = NULL; + char buf [12]; + unsigned long count; + char *addr_str; + + switch (argc) { + case 3: + addr_str = getenv("loadaddr"); + if (addr_str != NULL) { + addr = simple_strtoul (addr_str, NULL, 16); + } else { + addr = CFG_LOAD_ADDR; + } + filename = getenv ("bootfile"); + count = 0; + break; + case 4: + addr = simple_strtoul (argv[3], NULL, 16); + filename = getenv ("bootfile"); + count = 0; + break; + case 5: + addr = simple_strtoul (argv[3], NULL, 16); + filename = argv[4]; + count = 0; + break; + case 6: + addr = simple_strtoul (argv[3], NULL, 16); + filename = argv[4]; + count = simple_strtoul (argv[5], NULL, 16); + break; + + default: + printf ("Usage:\n%s\n", cmdtp->usage); + return(1); + } + + if (!filename) { + puts ("\n** No boot file defined **\n"); + 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); + } + + printf("Using device %s%d, partition %d\n", argv[1], dev, part); + + if (part != 0) { + if (get_partition_info (dev_desc, part, &info)) { + printf ("** Bad partition %d **\n", part); + return(1); + } + + if (strncmp((char *)info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) { + printf ("\n** Invalid partition type \"%.32s\"" + " (expect \"" BOOT_PART_TYPE "\")\n", + info.type); + return(1); + } + //PRINTF ("\nLoading from block device %s device %d, partition %d: " + // "Name: %.32s Type: %.32s File:%s\n", + // argv[1], dev, part, info.name, info.type, filename); + } else { + //PRINTF ("\nLoading from block device %s device %d, File:%s\n", + // argv[1], dev, filename); + + /* disk doesn't use partition table */ + info.start = 0; + info.size = dev_desc->lba; + info.blksz = dev_desc->blksz; + } + + part_length = info.size; + ext4fs_set_blk_dev(dev_desc, &info); + + if (!ext4fs_mount(part_length)) { + printf ("** Bad ext2 partition or disk - %s %d:%d **\n", argv[1], dev, part); + ext4fs_close(); + return(1); + } + + filelen = ext4fs_open(filename); + if (filelen < 0) { + printf("** File not found %s\n", filename); + ext4fs_close(); + return(1); + } + if ((count < filelen) && (count != 0)) { + filelen = count; + } + + if (ext4fs_read((char *)addr, filelen) != filelen) { + printf("\n** Unable to read \"%s\" from %s %d:%d **\n", filename, argv[1], dev, part); + ext4fs_close(); + return(1); + } + + ext4fs_close(); + + /* Loading ok, update default load address */ + load_addr = addr; + + printf ("\n%ld bytes read\n", filelen); + sprintf(buf, "%lX", filelen); + setenv("filesize", buf); + + return(filelen); + +#if 0 + 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; +#endif +} + +int do_ext_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) +{ + + char *filename = "/"; + int dev=0; + int part=1; + char *ep; + block_dev_desc_t *dev_desc=NULL; + int part_length; + disk_partition_t info; + + if (argc < 3) { + printf ("Usage:\n%s\n", cmdtp->usage); + 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 (argc == 4) { + filename = argv[3]; + } + + printf("Using device %s %d:%d, directory: %s\n", argv[1], dev, part, filename); + + 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)) { + } + } + + part_length = info.size; + if (part_length == 0) { + printf ("** Bad partition - %s %d:%d **\n", argv[1], dev, part); + ext4fs_close(); + return(1); + } + + 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; + +} |