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staging: vt6656: dead code remove wctl

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Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Malcolm Priestley 2014-06-25 21:19:50 +01:00 committed by Greg Kroah-Hartman
parent 04311c499f
commit 03e77fe366
7 changed files with 0 additions and 343 deletions
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1
drivers/staging/vt6656/Makefile
View file

@ -6,7 +6,6 @@ vt6656_stage-y += main_usb.o \
card.o \
mac.o \
baseband.o \
wctl.o \
80211mgr.o \
wcmd.o\
rxtx.o \

1
drivers/staging/vt6656/dpc.c
View file

@ -45,7 +45,6 @@
#include "baseband.h"
#include "michael.h"
#include "tkip.h"
#include "wctl.h"
#include "rf.h"
#include "iowpa.h"
#include "datarate.h"

1
drivers/staging/vt6656/main_usb.c
View file

@ -53,7 +53,6 @@
#include "mac.h"
#include "tether.h"
#include "wmgr.h"
#include "wctl.h"
#include "power.h"
#include "wcmd.h"
#include "rxtx.h"

1
drivers/staging/vt6656/rxtx.c
View file

@ -51,7 +51,6 @@
#include "mac.h"
#include "michael.h"
#include "tkip.h"
#include "wctl.h"
#include "rf.h"
#include "datarate.h"
#include "usbpipe.h"

1
drivers/staging/vt6656/wcmd.c
View file

@ -46,7 +46,6 @@
#include "wcmd.h"
#include "wmgr.h"
#include "power.h"
#include "wctl.h"
#include "baseband.h"
#include "usbpipe.h"
#include "rxtx.h"

244
drivers/staging/vt6656/wctl.c
View file

@ -1,244 +0,0 @@
/*
* 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.c
*
* Purpose: handle WMAC duplicate filter & defragment
*
* Author: Jerry Chen
*
* Date: Jun. 27, 2002
*
* Functions:
* WCTLbIsDuplicate - Test if duplicate packet
* WCTLuSearchDFCB - Search DeFragment Control Database
* WCTLuInsertDFCB - Insert DeFragment Control Database
* WCTLbHandleFragment - Handle received fragment packet
*
* Revision History:
*
*/
#include "wctl.h"
#include "device.h"
#include "card.h"
#include "tmacro.h"
// static int msglevel =MSG_LEVEL_INFO;
/*
* Description:
* Scan Rx cache. Return true if packet is duplicate, else
* inserts in receive cache and returns false.
*
* Parameters:
* In:
* pCache - Receive packets history
* pMACHeader - 802.11 MAC Header of received packet
* Out:
* none
*
* Return Value: true if packet duplicate; otherwise false
*
*/
bool WCTLbIsDuplicate (PSCache pCache, struct ieee80211_hdr *pMACHeader)
{
unsigned int uIndex;
unsigned int ii;
PSCacheEntry pCacheEntry;
if (IS_FC_RETRY(pMACHeader)) {
uIndex = pCache->uInPtr;
for (ii = 0; ii < DUPLICATE_RX_CACHE_LENGTH; ii++) {
pCacheEntry = &(pCache->asCacheEntry[uIndex]);
if ((pCacheEntry->wFmSequence == pMACHeader->seq_ctrl) &&
ether_addr_equal(pCacheEntry->abyAddr2, pMACHeader->addr2) &&
(pCacheEntry->wFrameCtl == pMACHeader->frame_control)
) {
/* Duplicate match */
return true;
}
ADD_ONE_WITH_WRAP_AROUND(uIndex, DUPLICATE_RX_CACHE_LENGTH);
}
}
/* Not found in cache - insert */
pCacheEntry = &pCache->asCacheEntry[pCache->uInPtr];
pCacheEntry->wFmSequence = pMACHeader->seq_ctrl;
memcpy(&(pCacheEntry->abyAddr2[0]), &(pMACHeader->addr2[0]), ETH_ALEN);
pCacheEntry->wFrameCtl = pMACHeader->frame_control;
ADD_ONE_WITH_WRAP_AROUND(pCache->uInPtr, DUPLICATE_RX_CACHE_LENGTH);
return false;
}
/*
* Description:
* Found if sequence number of received fragment packet in Defragment Database
*
* Parameters:
* In:
* pDevice - Pointer to adapter
* pMACHeader - 802.11 MAC Header of received packet
* Out:
* none
*
* Return Value: index number in Defragment Database
*
*/
unsigned int WCTLuSearchDFCB(struct vnt_private *pDevice,
struct ieee80211_hdr *pMACHeader)
{
unsigned int ii;
for (ii = 0; ii < pDevice->cbDFCB; ii++) {
if ((pDevice->sRxDFCB[ii].bInUse == true) &&
ether_addr_equal(pDevice->sRxDFCB[ii].abyAddr2,
pMACHeader->addr2)) {
return ii;
}
}
return pDevice->cbDFCB;
}
/*
* Description:
* Insert received fragment packet in Defragment Database
*
* Parameters:
* In:
* pDevice - Pointer to adapter
* pMACHeader - 802.11 MAC Header of received packet
* Out:
* none
*
* Return Value: index number in Defragment Database
*
*/
unsigned int WCTLuInsertDFCB(struct vnt_private *pDevice,
struct ieee80211_hdr *pMACHeader)
{
unsigned int ii;
if (pDevice->cbFreeDFCB == 0)
return(pDevice->cbDFCB);
for (ii = 0; ii < pDevice->cbDFCB; ii++) {
if (pDevice->sRxDFCB[ii].bInUse == false) {
pDevice->cbFreeDFCB--;
pDevice->sRxDFCB[ii].uLifetime = pDevice->dwMaxReceiveLifetime;
pDevice->sRxDFCB[ii].bInUse = true;
pDevice->sRxDFCB[ii].wSequence = (pMACHeader->seq_ctrl >> 4);
pDevice->sRxDFCB[ii].wFragNum = (pMACHeader->seq_ctrl & 0x000F);
memcpy(&(pDevice->sRxDFCB[ii].abyAddr2[0]),
&(pMACHeader->addr2[0]),
ETH_ALEN);
return(ii);
}
}
return(pDevice->cbDFCB);
}
/*
* Description:
* Handle received fragment packet
*
* Parameters:
* In:
* pDevice - Pointer to adapter
* pMACHeader - 802.11 MAC Header of received packet
* cbFrameLength - Frame length
* bWEP - is WEP packet
* Out:
* none
*
* Return Value: true if it is valid fragment packet and we have resource to defragment; otherwise false
*
*/
bool WCTLbHandleFragment(struct vnt_private *pDevice, struct ieee80211_hdr *pMACHeader, unsigned int cbFrameLength, bool bWEP, bool bExtIV)
{
unsigned int uHeaderSize;
if (bWEP == true) {
uHeaderSize = 28;
if (bExtIV)
// ExtIV
uHeaderSize +=4;
}
else {
uHeaderSize = 24;
}
if (IS_FIRST_FRAGMENT_PKT(pMACHeader)) {
pDevice->uCurrentDFCBIdx = WCTLuSearchDFCB(pDevice, pMACHeader);
if (pDevice->uCurrentDFCBIdx < pDevice->cbDFCB) {
// duplicate, we must flush previous DCB
pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].uLifetime = pDevice->dwMaxReceiveLifetime;
pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].wSequence = (pMACHeader->seq_ctrl >> 4);
pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].wFragNum = (pMACHeader->seq_ctrl & 0x000F);
}
else {
pDevice->uCurrentDFCBIdx = WCTLuInsertDFCB(pDevice, pMACHeader);
if (pDevice->uCurrentDFCBIdx == pDevice->cbDFCB) {
return(false);
}
}
// reserve 8 byte to match MAC RX Buffer
pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].pbyRxBuffer = (u8 *) (pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].skb->data + 8);
// pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].pbyRxBuffer = (u8 *) (pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].skb->data + 4);
memcpy(pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].pbyRxBuffer, pMACHeader, cbFrameLength);
pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].cbFrameLength = cbFrameLength;
pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].pbyRxBuffer += cbFrameLength;
pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].wFragNum++;
//DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "First pDevice->uCurrentDFCBIdx= %d\n", pDevice->uCurrentDFCBIdx);
return(false);
}
else {
pDevice->uCurrentDFCBIdx = WCTLuSearchDFCB(pDevice, pMACHeader);
if (pDevice->uCurrentDFCBIdx != pDevice->cbDFCB) {
if ((pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].wSequence == (pMACHeader->seq_ctrl >> 4)) &&
(pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].wFragNum == (pMACHeader->seq_ctrl & 0x000F)) &&
((pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].cbFrameLength + cbFrameLength - uHeaderSize) < 2346)) {
memcpy(pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].pbyRxBuffer, ((u8 *) (pMACHeader) + uHeaderSize), (cbFrameLength - uHeaderSize));
pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].cbFrameLength += (cbFrameLength - uHeaderSize);
pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].pbyRxBuffer += (cbFrameLength - uHeaderSize);
pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].wFragNum++;
//DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Second pDevice->uCurrentDFCBIdx= %d\n", pDevice->uCurrentDFCBIdx);
}
else {
// seq error or frag # error flush DFCB
pDevice->cbFreeDFCB++;
pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].bInUse = false;
return(false);
}
}
else {
return(false);
}
if (IS_LAST_FRAGMENT_PKT(pMACHeader)) {
//enq defragcontrolblock
pDevice->cbFreeDFCB++;
pDevice->sRxDFCB[pDevice->uCurrentDFCBIdx].bInUse = false;
//DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Last pDevice->uCurrentDFCBIdx= %d\n", pDevice->uCurrentDFCBIdx);
return(true);
}
return(false);
}
}

94
drivers/staging/vt6656/wctl.h
View file

@ -1,94 +0,0 @@
/*
* 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 "tether.h"
#include "device.h"
#define IS_TYPE_DATA(pMACHeader) \
((((struct ieee80211_hdr *) pMACHeader)->frame_control & TYPE_802_11_MASK) == TYPE_802_11_DATA)
#define IS_TYPE_MGMT(pMACHeader) \
((((struct ieee80211_hdr *) pMACHeader)->frame_control & TYPE_802_11_MASK) == TYPE_802_11_MGMT)
#define IS_TYPE_CONTROL(pMACHeader) \
((((struct ieee80211_hdr *) pMACHeader)->frame_control & TYPE_802_11_MASK) == TYPE_802_11_CTL)
#define IS_FC_MOREDATA(pMACHeader) \
((((struct ieee80211_hdr *) pMACHeader)->frame_control & FC_MOREDATA) == FC_MOREDATA)
#define IS_FC_POWERMGT(pMACHeader) \
((((struct ieee80211_hdr *) pMACHeader)->frame_control & FC_POWERMGT) == FC_POWERMGT)
#define IS_FC_RETRY(pMACHeader) \
((((struct ieee80211_hdr *) pMACHeader)->frame_control & FC_RETRY) == FC_RETRY)
#define IS_FC_WEP(pMACHeader) \
((((struct ieee80211_hdr *) pMACHeader)->frame_control & FC_WEP) == FC_WEP)
#ifdef __BIG_ENDIAN
#define IS_FRAGMENT_PKT(pMACHeader) \
(((((struct ieee80211_hdr *) pMACHeader)->frame_control & FC_MOREFRAG) != 0) | \
((((struct ieee80211_hdr *) pMACHeader)->seq_ctrl & 0x0F00) != 0))
#define IS_FIRST_FRAGMENT_PKT(pMACHeader) \
((((struct ieee80211_hdr *) pMACHeader)->seq_ctrl & 0x0F00) == 0)
#else
#define IS_FRAGMENT_PKT(pMACHeader) \
(((((struct ieee80211_hdr *) pMACHeader)->frame_control & FC_MOREFRAG) != 0) | \
((((struct ieee80211_hdr *) pMACHeader)->seq_ctrl & 0x000F) != 0))
#define IS_FIRST_FRAGMENT_PKT(pMACHeader) \
((((struct ieee80211_hdr *) pMACHeader)->seq_ctrl & 0x000F) == 0)
#endif//#ifdef __BIG_ENDIAN
#define IS_LAST_FRAGMENT_PKT(pMACHeader) \
((((struct ieee80211_hdr *) pMACHeader)->frame_control & FC_MOREFRAG) == 0)
#define IS_CTL_PSPOLL(pMACHeader) \
((((struct ieee80211_hdr *) pMACHeader)->frame_control & TYPE_SUBTYPE_MASK) == TYPE_CTL_PSPOLL)
#define ADD_ONE_WITH_WRAP_AROUND(uVar, uModulo) { \
if ((uVar) >= ((uModulo) - 1)) \
(uVar) = 0; \
else \
(uVar)++; \
}
bool WCTLbIsDuplicate(PSCache pCache, struct ieee80211_hdr *pMACHeader);
bool WCTLbHandleFragment(struct vnt_private *, struct ieee80211_hdr *pMACHeader, unsigned int cbFrameLength, bool bWEP, bool bExtIV);
unsigned int WCTLuSearchDFCB(struct vnt_private *, struct ieee80211_hdr *pMACHeader);
unsigned int WCTLuInsertDFCB(struct vnt_private *, struct ieee80211_hdr *pMACHeader);
#endif /* __WCTL_H__ */