/*
 *  Copyright (C) 2012-2013 Samsung Electronics Co., Ltd.
 *
 *  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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#ifndef _EXFAT_NLS_H
#define _EXFAT_NLS_H

#include <linux/nls.h>

#include "exfat_config.h"
#include "exfat_global.h"
#include "exfat_api.h"

#ifdef __cplusplus
extern "C" {
#endif

#define NUM_UPCASE              2918

#define DOS_CUR_DIR_NAME        ".          "
#define DOS_PAR_DIR_NAME        "..         "

#if (FFS_CONFIG_LITTLE_ENDIAN == 1)
#define UNI_CUR_DIR_NAME        ".\0"
#define UNI_PAR_DIR_NAME        ".\0.\0"
#else
#define UNI_CUR_DIR_NAME        "\0."
#define UNI_PAR_DIR_NAME        "\0.\0."
#endif


typedef struct {
	UINT8       name[DOS_NAME_LENGTH];
	UINT8       name_case;
} DOS_NAME_T;

typedef struct {
	UINT16      name[MAX_NAME_LENGTH];
	UINT16      name_hash;
	UINT8       name_len;
} UNI_NAME_T;

UINT16 nls_upper(struct super_block *sb, UINT16 a);
INT32  nls_dosname_cmp(struct super_block *sb, UINT8 *a, UINT8 *b);
INT32  nls_uniname_cmp(struct super_block *sb, UINT16 *a, UINT16 *b);
void   nls_uniname_to_dosname(struct super_block *sb, DOS_NAME_T *p_dosname, UNI_NAME_T *p_uniname, INT32 *p_lossy);
void   nls_dosname_to_uniname(struct super_block *sb, UNI_NAME_T *p_uniname, DOS_NAME_T *p_dosname);
void   nls_uniname_to_cstring(struct super_block *sb, UINT8 *p_cstring, UNI_NAME_T *p_uniname);
void   nls_cstring_to_uniname(struct super_block *sb, UNI_NAME_T *p_uniname, UINT8 *p_cstring, INT32 *p_lossy);

#ifdef __cplusplus
}
#endif
#endif