[deliverable/linux.git] / drivers / staging / vt6655 / wctl.h

/*
 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
 * All rights reserved.
 *
 * 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.
 *
 * File: wctl.h
 *
 * Purpose:
 *
 * Author: Jerry Chen
 *
 * Date: Jun. 27, 2002
 *
 */

#ifndef __WCTL_H__
#define __WCTL_H__

#include "ttype.h"
#include "tether.h"
#include "device.h"

/*---------------------  Export Definitions -------------------------*/

#define IS_TYPE_DATA(pMACHeader)					\
	((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_802_11_MASK) == TYPE_802_11_DATA)

#define IS_TYPE_MGMT(pMACHeader)					\
	((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_802_11_MASK) == TYPE_802_11_MGMT)

#define IS_TYPE_CONTROL(pMACHeader)					\
	((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_802_11_MASK) == TYPE_802_11_CTL)

#define IS_FC_MOREDATA(pMACHeader)					\
	((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREDATA) == FC_MOREDATA)

#define IS_FC_POWERMGT(pMACHeader)					\
	((((PS802_11Header) pMACHeader)->wFrameCtl & FC_POWERMGT) == FC_POWERMGT)

#define IS_FC_RETRY(pMACHeader)						\
	((((PS802_11Header) pMACHeader)->wFrameCtl & FC_RETRY) == FC_RETRY)

#define IS_FC_WEP(pMACHeader)						\
	((((PS802_11Header) pMACHeader)->wFrameCtl & FC_WEP) == FC_WEP)

#ifdef __BIG_ENDIAN

#define IS_FRAGMENT_PKT(pMACHeader)					\
	(((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREFRAG) != 0) | \
	 ((((PS802_11Header) pMACHeader)->wSeqCtl & 0x0F00) != 0))

#define IS_FIRST_FRAGMENT_PKT(pMACHeader)				\
	((((PS802_11Header) pMACHeader)->wSeqCtl & 0x0F00) == 0)

#else

#define IS_FRAGMENT_PKT(pMACHeader)					\
	(((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREFRAG) != 0) | \
	 ((((PS802_11Header) pMACHeader)->wSeqCtl & 0x000F) != 0))

#define IS_FIRST_FRAGMENT_PKT(pMACHeader)				\
	((((PS802_11Header) pMACHeader)->wSeqCtl & 0x000F) == 0)

#endif//#ifdef __BIG_ENDIAN

#define IS_LAST_FRAGMENT_PKT(pMACHeader)				\
	((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREFRAG) == 0)

#define IS_CTL_PSPOLL(pMACHeader)					\
	((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_SUBTYPE_MASK) == TYPE_CTL_PSPOLL)

#define ADD_ONE_WITH_WRAP_AROUND(uVar, uModulo)		\
do {							\
	if ((uVar) >= ((uModulo) - 1))			\
		(uVar) = 0;				\
	else						\
		(uVar)++;				\
} while (0)

/*---------------------  Export Classes  ----------------------------*/

/*---------------------  Export Variables  --------------------------*/

/*---------------------  Export Functions  --------------------------*/

bool WCTLbIsDuplicate(PSCache pCache, PS802_11Header pMACHeader);
bool WCTLbHandleFragment(PSDevice pDevice, PS802_11Header pMACHeader,
			 unsigned int cbFrameLength, bool bWEP, bool bExtIV);
unsigned int WCTLuSearchDFCB(PSDevice pDevice, PS802_11Header pMACHeader);
unsigned int WCTLuInsertDFCB(PSDevice pDevice, PS802_11Header pMACHeader);

#endif // __WCTL_H__
Commit	Line	Data
5449c685 FB	1	/*
	2	* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
	3	* All rights reserved.
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation; either version 2 of the License, or
	8	* (at your option) any later version.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License along
	16	* with this program; if not, write to the Free Software Foundation, Inc.,
	17	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
	18	*
	19	* File: wctl.h
	20	*
	21	* Purpose:
	22	*
	23	* Author: Jerry Chen
	24	*
	25	* Date: Jun. 27, 2002
	26	*
	27	*/
	28
5449c685 FB	29	#ifndef __WCTL_H__
	30	#define __WCTL_H__
	31
5449c685	32	#include "ttype.h"
5449c685	33	#include "tether.h"
5449c685	34	#include "device.h"
5449c685 FB	35
	36	/--------------------- Export Definitions -------------------------/
	37
e2b8c6d3 JP	38	#define IS_TYPE_DATA(pMACHeader) \
e2b8c6d3 JP	39	((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_802_11_MASK) == TYPE_802_11_DATA)
5449c685	40
e2b8c6d3 JP	41	#define IS_TYPE_MGMT(pMACHeader) \
e2b8c6d3 JP	42	((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_802_11_MASK) == TYPE_802_11_MGMT)
5449c685	43
e2b8c6d3 JP	44	#define IS_TYPE_CONTROL(pMACHeader) \
e2b8c6d3 JP	45	((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_802_11_MASK) == TYPE_802_11_CTL)
5449c685	46
e2b8c6d3 JP	47	#define IS_FC_MOREDATA(pMACHeader) \
e2b8c6d3 JP	48	((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREDATA) == FC_MOREDATA)
5449c685	49
e2b8c6d3 JP	50	#define IS_FC_POWERMGT(pMACHeader) \
e2b8c6d3 JP	51	((((PS802_11Header) pMACHeader)->wFrameCtl & FC_POWERMGT) == FC_POWERMGT)
5449c685	52
e2b8c6d3 JP	53	#define IS_FC_RETRY(pMACHeader) \
e2b8c6d3 JP	54	((((PS802_11Header) pMACHeader)->wFrameCtl & FC_RETRY) == FC_RETRY)
5449c685	55
e2b8c6d3 JP	56	#define IS_FC_WEP(pMACHeader) \
e2b8c6d3 JP	57	((((PS802_11Header) pMACHeader)->wFrameCtl & FC_WEP) == FC_WEP)
5449c685 FB	58
	59	#ifdef __BIG_ENDIAN
	60
e2b8c6d3 JP	61	#define IS_FRAGMENT_PKT(pMACHeader) \
	62	(((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREFRAG) != 0) \| \
	63	((((PS802_11Header) pMACHeader)->wSeqCtl & 0x0F00) != 0))
5449c685	64
e2b8c6d3 JP	65	#define IS_FIRST_FRAGMENT_PKT(pMACHeader) \
e2b8c6d3 JP	66	((((PS802_11Header) pMACHeader)->wSeqCtl & 0x0F00) == 0)
5449c685 FB	67
	68	#else
	69
e2b8c6d3 JP	70	#define IS_FRAGMENT_PKT(pMACHeader) \
	71	(((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREFRAG) != 0) \| \
	72	((((PS802_11Header) pMACHeader)->wSeqCtl & 0x000F) != 0))
5449c685	73
e2b8c6d3 JP	74	#define IS_FIRST_FRAGMENT_PKT(pMACHeader) \
e2b8c6d3 JP	75	((((PS802_11Header) pMACHeader)->wSeqCtl & 0x000F) == 0)
5449c685 FB	76
	77	#endif//#ifdef __BIG_ENDIAN
	78
e2b8c6d3 JP	79	#define IS_LAST_FRAGMENT_PKT(pMACHeader) \
e2b8c6d3 JP	80	((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREFRAG) == 0)
5449c685	81
e2b8c6d3 JP	82	#define IS_CTL_PSPOLL(pMACHeader) \
e2b8c6d3 JP	83	((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_SUBTYPE_MASK) == TYPE_CTL_PSPOLL)
5449c685	84
bda2a44e JP	85	#define ADD_ONE_WITH_WRAP_AROUND(uVar, uModulo) \
	86	do { \
	87	if ((uVar) >= ((uModulo) - 1)) \
	88	(uVar) = 0; \
	89	else \
	90	(uVar)++; \
	91	} while (0)
5449c685	92
5449c685 FB	93	/--------------------- Export Classes ----------------------------/
	94
	95	/--------------------- Export Variables --------------------------/
	96
	97	/--------------------- Export Functions --------------------------/
5449c685	98
7b6a0013 CC	99	bool WCTLbIsDuplicate(PSCache pCache, PS802_11Header pMACHeader);
7b6a0013 CC	100	bool WCTLbHandleFragment(PSDevice pDevice, PS802_11Header pMACHeader,
e2b8c6d3	101	unsigned int cbFrameLength, bool bWEP, bool bExtIV);
b6e95cd5 CC	102	unsigned int WCTLuSearchDFCB(PSDevice pDevice, PS802_11Header pMACHeader);
b6e95cd5 CC	103	unsigned int WCTLuInsertDFCB(PSDevice pDevice, PS802_11Header pMACHeader);
5449c685	104
5449c685	105	#endif // __WCTL_H__