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    /*
     * (C) Copyright 2008
     * Stefan Roese, DENX Software Engineering, sr@denx.de.
     *
     * See file CREDITS for list of people who contributed to this
     * project.
     *
     * 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
     *
     */
    
    
    /*
     * UBIFS command support
     */
    
    #undef DEBUG
    
    #include <common.h>
    #include <config.h>
    #include <command.h>
    
    static int ubifs_initialized;
    static int ubifs_mounted;
    
    /* Prototypes */
    int ubifs_init(void);
    int ubifs_mount(char *vol_name);
    int ubifs_ls(char *dir_name);
    int ubifs_load(char *filename, u32 addr, u32 size);
    
    int do_ubifs_mount(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
    {
    	char *vol_name;
    	int ret;
    
    
    	if (argc != 2) {
    		cmd_usage(cmdtp);
    		return 1;
    	}
    
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    	vol_name = argv[1];
    	debug("Using volume %s\n", vol_name);
    
    	if (ubifs_initialized == 0) {
    		ubifs_init();
    		ubifs_initialized = 1;
    	}
    
    	ret = ubifs_mount(vol_name);
    	if (ret)
    		return -1;
    
    	ubifs_mounted = 1;
    
    	return 0;
    }
    
    int do_ubifs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
    {
    	char *filename = "/";
    	int ret;
    
    	if (!ubifs_mounted) {
    		printf("UBIFS not mounted, use ubifs mount to mount volume first!\n");
    		return -1;
    	}
    
    	if (argc == 2)
    		filename = argv[1];
    	debug("Using filename %s\n", filename);
    
    	ret = ubifs_ls(filename);
    	if (ret)
    		printf("%s not found!\n", filename);
    
    	return ret;
    }
    
    int do_ubifs_load(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
    {
    	char *filename;
    
    	char *endp;
    
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    	int ret;
    	u32 addr;
    	u32 size = 0;
    
    	if (!ubifs_mounted) {
    		printf("UBIFS not mounted, use ubifs mount to mount volume first!\n");
    		return -1;
    	}
    
    	if (argc < 3) {
    
    		cmd_usage(cmdtp);
    
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    		return -1;
    	}
    
    
    	addr = simple_strtoul(argv[1], &endp, 16);
    	if (endp == argv[1]) {
    		cmd_usage(cmdtp);
    		return 1;
    	}
    
    
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    	filename = argv[2];
    
    
    	if (argc == 4) {
    		size = simple_strtoul(argv[3], &endp, 16);
    		if (endp == argv[3]) {
    			cmd_usage(cmdtp);
    			return 1;
    		}
    	}
    
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    	debug("Loading file '%s' to address 0x%08x (size %d)\n", filename, addr, size);
    
    	ret = ubifs_load(filename, addr, size);
    	if (ret)
    		printf("%s not found!\n", filename);
    
    	return ret;
    }
    
    U_BOOT_CMD(
    	ubifsmount, 2, 0, do_ubifs_mount,
    
    	"mount UBIFS volume",
    
    	"<volume-name>\n"
    	"    - mount 'volume-name' volume"
    
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    U_BOOT_CMD(ubifsls, 2, 0, do_ubifs_ls,
    
    	"list files in a directory",
    	"[directory]\n"
    	"    - list files in a 'directory' (default '/')"
    );
    
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    U_BOOT_CMD(ubifsload, 4, 0, do_ubifs_load,
    
    	"load file from an UBIFS filesystem",
    	"<addr> <filename> [bytes]\n"
    	"    - load file 'filename' to address 'addr'"
    );