/******************************************************************************
 *
 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * 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, USA
 *
 *
 ******************************************************************************/
#ifndef __BASIC_TYPES_H__
#define __BASIC_TYPES_H__

#include <drv_conf.h>


#define SUCCESS	0
#define FAIL	(-1)

#ifndef TRUE
	#define _TRUE	1
#else
	#define _TRUE	TRUE
#endif

#ifndef FALSE
	#define _FALSE	0
#else
	#define _FALSE	FALSE
#endif

#include <linux/types.h>
#define NDIS_OID uint
#define NDIS_STATUS uint

#define FIELD_OFFSET(s,field)	((__kernel_ssize_t)&((s*)(0))->field)

//port from fw by thomas
// TODO: Belows are Sync from SD7-Driver. It is necessary to check correctness

/*
 *	Call endian free function when
 *		1. Read/write packet content.
 *		2. Before write integer to IO.
 *		3. After read integer from IO.
*/

//
// Byte Swapping routine.
//
#define EF1Byte
#define EF2Byte		le16_to_cpu
#define EF4Byte	le32_to_cpu

//
// Read LE format data from memory
//
#define ReadEF1Byte(_ptr)		EF1Byte(*((u8 *)(_ptr)))
#define ReadEF2Byte(_ptr)		EF2Byte(*((u16 *)(_ptr)))
#define ReadEF4Byte(_ptr)		EF4Byte(*((u32 *)(_ptr)))

//
// Write LE data to memory
//
#define WriteEF1Byte(_ptr, _val)	(*((u8 *)(_ptr)))=EF1Byte(_val)
#define WriteEF2Byte(_ptr, _val)	(*((u16 *)(_ptr)))=EF2Byte(_val)
#define WriteEF4Byte(_ptr, _val)	(*((u32 *)(_ptr)))=EF4Byte(_val)

//
//	Example:
//		BIT_LEN_MASK_32(0) => 0x00000000
//		BIT_LEN_MASK_32(1) => 0x00000001
//		BIT_LEN_MASK_32(2) => 0x00000003
//		BIT_LEN_MASK_32(32) => 0xFFFFFFFF
//
#define BIT_LEN_MASK_32(__BitLen) \
	(0xFFFFFFFF >> (32 - (__BitLen)))
//
//	Example:
//		BIT_OFFSET_LEN_MASK_32(0, 2) => 0x00000003
//		BIT_OFFSET_LEN_MASK_32(16, 2) => 0x00030000
//
#define BIT_OFFSET_LEN_MASK_32(__BitOffset, __BitLen) \
	(BIT_LEN_MASK_32(__BitLen) << (__BitOffset))

//
//	Description:
//		Return 4-byte value in host byte ordering from
//		4-byte pointer in litten-endian system.
//
#define LE_P4BYTE_TO_HOST_4BYTE(__pStart) \
	(EF4Byte(*((u32 *)(__pStart))))

//
//	Description:
//		Translate subfield (continuous bits in little-endian) of 4-byte value in litten byte to
//		4-byte value in host byte ordering.
//
#define LE_BITS_TO_4BYTE(__pStart, __BitOffset, __BitLen) \
	( \
		( LE_P4BYTE_TO_HOST_4BYTE(__pStart) >> (__BitOffset) ) \
		& \
		BIT_LEN_MASK_32(__BitLen) \
	)

//
//	Description:
//		Mask subfield (continuous bits in little-endian) of 4-byte value in litten byte oredering
//		and return the result in 4-byte value in host byte ordering.
//
#define LE_BITS_CLEARED_TO_4BYTE(__pStart, __BitOffset, __BitLen) \
	( \
		LE_P4BYTE_TO_HOST_4BYTE(__pStart) \
		& \
		( ~BIT_OFFSET_LEN_MASK_32(__BitOffset, __BitLen) ) \
	)

//
//	Description:
//		Set subfield of little-endian 4-byte value to specified value.
//
#define SET_BITS_TO_LE_4BYTE(__pStart, __BitOffset, __BitLen, __Value) \
	*((u32 *)(__pStart)) = \
		EF4Byte( \
			LE_BITS_CLEARED_TO_4BYTE(__pStart, __BitOffset, __BitLen) \
			| \
			( (((u32)__Value) & BIT_LEN_MASK_32(__BitLen)) << (__BitOffset) ) \
		);


#define BIT_LEN_MASK_16(__BitLen) \
		(0xFFFF >> (16 - (__BitLen)))

#define BIT_OFFSET_LEN_MASK_16(__BitOffset, __BitLen) \
	(BIT_LEN_MASK_16(__BitLen) << (__BitOffset))

#define LE_P2BYTE_TO_HOST_2BYTE(__pStart) \
	(EF2Byte(*((u16 *)(__pStart))))

#define LE_BITS_TO_2BYTE(__pStart, __BitOffset, __BitLen) \
	( \
		( LE_P2BYTE_TO_HOST_2BYTE(__pStart) >> (__BitOffset) ) \
		& \
		BIT_LEN_MASK_16(__BitLen) \
	)

#define LE_BITS_CLEARED_TO_2BYTE(__pStart, __BitOffset, __BitLen) \
	( \
		LE_P2BYTE_TO_HOST_2BYTE(__pStart) \
		& \
		( ~BIT_OFFSET_LEN_MASK_16(__BitOffset, __BitLen) ) \
	)

#define SET_BITS_TO_LE_2BYTE(__pStart, __BitOffset, __BitLen, __Value) \
	*((u16 *)(__pStart)) = \
		EF2Byte( \
			LE_BITS_CLEARED_TO_2BYTE(__pStart, __BitOffset, __BitLen) \
			| \
			( (((u16)__Value) & BIT_LEN_MASK_16(__BitLen)) << (__BitOffset) ) \
		);

#define BIT_LEN_MASK_8(__BitLen) \
		(0xFF >> (8 - (__BitLen)))

#define BIT_OFFSET_LEN_MASK_8(__BitOffset, __BitLen) \
	(BIT_LEN_MASK_8(__BitLen) << (__BitOffset))

#define LE_P1BYTE_TO_HOST_1BYTE(__pStart) \
	(EF1Byte(*((u8 *)(__pStart))))

#define LE_BITS_TO_1BYTE(__pStart, __BitOffset, __BitLen) \
	( \
		( LE_P1BYTE_TO_HOST_1BYTE(__pStart) >> (__BitOffset) ) \
		& \
		BIT_LEN_MASK_8(__BitLen) \
	)

#define LE_BITS_CLEARED_TO_1BYTE(__pStart, __BitOffset, __BitLen) \
	( \
		LE_P1BYTE_TO_HOST_1BYTE(__pStart) \
		& \
		( ~BIT_OFFSET_LEN_MASK_8(__BitOffset, __BitLen) ) \
	)

#define SET_BITS_TO_LE_1BYTE(__pStart, __BitOffset, __BitLen, __Value) \
	*((u8 *)(__pStart)) = \
		EF1Byte( \
			LE_BITS_CLEARED_TO_1BYTE(__pStart, __BitOffset, __BitLen) \
			| \
			( (((u8)__Value) & BIT_LEN_MASK_8(__BitLen)) << (__BitOffset) ) \
		);

//pclint
#define LE_BITS_CLEARED_TO_1BYTE_8BIT(__pStart, __BitOffset, __BitLen) \
	( \
		LE_P1BYTE_TO_HOST_1BYTE(__pStart) \
	)

//pclint
#define SET_BITS_TO_LE_1BYTE_8BIT(__pStart, __BitOffset, __BitLen, __Value) \
{ \
	*((u8 *)(__pStart)) = \
		EF1Byte( \
			LE_BITS_CLEARED_TO_1BYTE_8BIT(__pStart, __BitOffset, __BitLen) \
			| \
			((u8)__Value) \
		); \
}

// Get the N-bytes aligment offset from the current length
#define N_BYTE_ALIGMENT(__Value, __Aligment) ((__Aligment == 1) ? (__Value) : (((__Value + __Aligment - 1) / __Aligment) * __Aligment))

#endif //__BASIC_TYPES_H__
