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staging: vt6656: dead code remove diversity code 

bDiversityRegCtlON is always false.

In later vendor driver code has been commented out.

Remove diversity timers and variables.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Malcolm Priestley 2014-05-21 21:09:44 +01:00 committed by Greg Kroah-Hartman
parent 91e2f7f961
commit 0e7935aba0
5 changed files with 0 additions and 365 deletions
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282
drivers/staging/vt6656/baseband.c
View File

@ -635,20 +635,6 @@ static u8 abyVT3184_VT3226D0[] = {
static const u16 awcFrameTime[MAX_RATE] =
{10, 20, 55, 110, 24, 36, 48, 72, 96, 144, 192, 216};
/*
static
unsigned long
s_ulGetLowSQ3(PSDevice pDevice);
static
unsigned long
s_ulGetRatio(PSDevice pDevice);
static
void
s_vClearSQ3Value(PSDevice pDevice);
*/
/*
* Description: Calculate data frame transmitting time
*
@ -1140,274 +1126,6 @@ void BBvExitDeepSleep(struct vnt_private *priv)
ControlvWriteByte(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01);/* CR13 */
}
static unsigned long s_ulGetLowSQ3(struct vnt_private *pDevice)
{
int ii;
unsigned long ulSQ3 = 0;
unsigned long ulMaxPacket;
ulMaxPacket = pDevice->aulPktNum[RATE_54M];
if (pDevice->aulPktNum[RATE_54M] != 0)
ulSQ3 = pDevice->aulSQ3Val[RATE_54M] / pDevice->aulPktNum[RATE_54M];
for (ii = RATE_48M; ii >= RATE_6M; ii--)
if (pDevice->aulPktNum[ii] > ulMaxPacket) {
ulMaxPacket = pDevice->aulPktNum[ii];
ulSQ3 = pDevice->aulSQ3Val[ii] / pDevice->aulPktNum[ii];
}
return ulSQ3;
}
static unsigned long s_ulGetRatio(struct vnt_private *pDevice)
{
int ii, jj;
unsigned long ulRatio = 0;
unsigned long ulMaxPacket;
unsigned long ulPacketNum;
//This is a thousand-ratio
ulMaxPacket = pDevice->aulPktNum[RATE_54M];
if ( pDevice->aulPktNum[RATE_54M] != 0 ) {
ulPacketNum = pDevice->aulPktNum[RATE_54M];
ulRatio = (ulPacketNum * 1000 / pDevice->uDiversityCnt);
ulRatio += TOP_RATE_54M;
}
for (ii = RATE_48M; ii >= RATE_1M; ii--)
if ( pDevice->aulPktNum[ii] > ulMaxPacket ) {
ulPacketNum = 0;
for ( jj=RATE_54M;jj>=ii;jj--)
ulPacketNum += pDevice->aulPktNum[jj];
ulRatio = (ulPacketNum * 1000 / pDevice->uDiversityCnt);
ulRatio += TOP_RATE_48M;
ulMaxPacket = pDevice->aulPktNum[ii];
}
return ulRatio;
}
static void s_vClearSQ3Value(struct vnt_private *pDevice)
{
int ii;
pDevice->uDiversityCnt = 0;
for ( ii=RATE_1M;ii<MAX_RATE;ii++) {
pDevice->aulPktNum[ii] = 0;
pDevice->aulSQ3Val[ii] = 0;
}
}
/*
* Description: Antenna Diversity
*
* Parameters:
* In:
* pDevice - Device Structure
* byRSR - RSR from received packet
* bySQ3 - SQ3 value from received packet
* Out:
* none
*
* Return Value: none
*
*/
void BBvAntennaDiversity(struct vnt_private *pDevice,
u8 byRxRate, u8 bySQ3)
{
pDevice->uDiversityCnt++;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pDevice->uDiversityCnt = %d\n", (int)pDevice->uDiversityCnt);
if (byRxRate == 2) {
pDevice->aulPktNum[RATE_1M]++;
}
else if (byRxRate==4) {
pDevice->aulPktNum[RATE_2M]++;
}
else if (byRxRate==11) {
pDevice->aulPktNum[RATE_5M]++;
}
else if (byRxRate==22) {
pDevice->aulPktNum[RATE_11M]++;
}
else if(byRxRate==12){
pDevice->aulPktNum[RATE_6M]++;
pDevice->aulSQ3Val[RATE_6M] += bySQ3;
}
else if(byRxRate==18){
pDevice->aulPktNum[RATE_9M]++;
pDevice->aulSQ3Val[RATE_9M] += bySQ3;
}
else if(byRxRate==24){
pDevice->aulPktNum[RATE_12M]++;
pDevice->aulSQ3Val[RATE_12M] += bySQ3;
}
else if(byRxRate==36){
pDevice->aulPktNum[RATE_18M]++;
pDevice->aulSQ3Val[RATE_18M] += bySQ3;
}
else if(byRxRate==48){
pDevice->aulPktNum[RATE_24M]++;
pDevice->aulSQ3Val[RATE_24M] += bySQ3;
}
else if(byRxRate==72){
pDevice->aulPktNum[RATE_36M]++;
pDevice->aulSQ3Val[RATE_36M] += bySQ3;
}
else if(byRxRate==96){
pDevice->aulPktNum[RATE_48M]++;
pDevice->aulSQ3Val[RATE_48M] += bySQ3;
}
else if(byRxRate==108){
pDevice->aulPktNum[RATE_54M]++;
pDevice->aulSQ3Val[RATE_54M] += bySQ3;
}
if (pDevice->byAntennaState == 0) {
if (pDevice->uDiversityCnt > pDevice->ulDiversityNValue) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ulDiversityNValue=[%d],54M-[%d]\n",(int)pDevice->ulDiversityNValue, (int)pDevice->aulPktNum[RATE_54M]);
pDevice->ulSQ3_State0 = s_ulGetLowSQ3(pDevice);
pDevice->ulRatio_State0 = s_ulGetRatio(pDevice);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"SQ3_State0, SQ3= [%08x] rate = [%08x]\n",(int)pDevice->ulSQ3_State0,(int)pDevice->ulRatio_State0);
if ( ((pDevice->aulPktNum[RATE_54M] < pDevice->ulDiversityNValue/2) &&
(pDevice->ulSQ3_State0 > pDevice->ulSQ3TH) ) ||
(pDevice->ulSQ3_State0 == 0 ) ) {
if ( pDevice->byTMax == 0 )
return;
bScheduleCommand((void *) pDevice,
WLAN_CMD_CHANGE_ANTENNA,
NULL);
pDevice->byAntennaState = 1;
del_timer(&pDevice->TimerSQ3Tmax3);
del_timer(&pDevice->TimerSQ3Tmax2);
pDevice->TimerSQ3Tmax1.expires = RUN_AT(pDevice->byTMax * HZ);
add_timer(&pDevice->TimerSQ3Tmax1);
} else {
pDevice->TimerSQ3Tmax3.expires = RUN_AT(pDevice->byTMax3 * HZ);
add_timer(&pDevice->TimerSQ3Tmax3);
}
s_vClearSQ3Value(pDevice);
}
} else { //byAntennaState == 1
if (pDevice->uDiversityCnt > pDevice->ulDiversityMValue) {
del_timer(&pDevice->TimerSQ3Tmax1);
pDevice->ulSQ3_State1 = s_ulGetLowSQ3(pDevice);
pDevice->ulRatio_State1 = s_ulGetRatio(pDevice);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"SQ3_State1, rate0 = %08x,rate1 = %08x\n",(int)pDevice->ulRatio_State0,(int)pDevice->ulRatio_State1);
if ( ((pDevice->ulSQ3_State1 == 0) && (pDevice->ulSQ3_State0 != 0)) ||
((pDevice->ulSQ3_State1 == 0) && (pDevice->ulSQ3_State0 == 0) && (pDevice->ulRatio_State1 < pDevice->ulRatio_State0)) ||
((pDevice->ulSQ3_State1 != 0) && (pDevice->ulSQ3_State0 != 0) && (pDevice->ulSQ3_State0 < pDevice->ulSQ3_State1))
) {
bScheduleCommand((void *) pDevice,
WLAN_CMD_CHANGE_ANTENNA,
NULL);
pDevice->TimerSQ3Tmax3.expires = RUN_AT(pDevice->byTMax3 * HZ);
pDevice->TimerSQ3Tmax2.expires = RUN_AT(pDevice->byTMax2 * HZ);
add_timer(&pDevice->TimerSQ3Tmax3);
add_timer(&pDevice->TimerSQ3Tmax2);
}
pDevice->byAntennaState = 0;
s_vClearSQ3Value(pDevice);
}
} //byAntennaState
}
/*+
*
* Description:
* Timer for SQ3 antenna diversity
*
* Parameters:
* In:
* pvSysSpec1
* hDeviceContext - Pointer to the adapter
* pvSysSpec2
* pvSysSpec3
* Out:
* none
*
* Return Value: none
*
-*/
void TimerSQ3CallBack(struct vnt_private *pDevice)
{
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TimerSQ3CallBack...");
spin_lock_irq(&pDevice->lock);
bScheduleCommand((void *) pDevice, WLAN_CMD_CHANGE_ANTENNA, NULL);
pDevice->byAntennaState = 0;
s_vClearSQ3Value(pDevice);
pDevice->TimerSQ3Tmax3.expires = RUN_AT(pDevice->byTMax3 * HZ);
pDevice->TimerSQ3Tmax2.expires = RUN_AT(pDevice->byTMax2 * HZ);
add_timer(&pDevice->TimerSQ3Tmax3);
add_timer(&pDevice->TimerSQ3Tmax2);
spin_unlock_irq(&pDevice->lock);
}
/*+
*
* Description:
* Timer for SQ3 antenna diversity
*
* Parameters:
* In:
* pvSysSpec1
* hDeviceContext - Pointer to the adapter
* pvSysSpec2
* pvSysSpec3
* Out:
* none
*
* Return Value: none
*
-*/
void TimerSQ3Tmax3CallBack(struct vnt_private *pDevice)
{
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"TimerSQ3Tmax3CallBack...");
spin_lock_irq(&pDevice->lock);
pDevice->ulRatio_State0 = s_ulGetRatio(pDevice);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"SQ3_State0 = [%08x]\n",(int)pDevice->ulRatio_State0);
s_vClearSQ3Value(pDevice);
if ( pDevice->byTMax == 0 ) {
pDevice->TimerSQ3Tmax3.expires = RUN_AT(pDevice->byTMax3 * HZ);
add_timer(&pDevice->TimerSQ3Tmax3);
spin_unlock_irq(&pDevice->lock);
return;
}
bScheduleCommand((void *) pDevice, WLAN_CMD_CHANGE_ANTENNA, NULL);
pDevice->byAntennaState = 1;
del_timer(&pDevice->TimerSQ3Tmax3);
del_timer(&pDevice->TimerSQ3Tmax2);
pDevice->TimerSQ3Tmax1.expires = RUN_AT(pDevice->byTMax * HZ);
add_timer(&pDevice->TimerSQ3Tmax1);
spin_unlock_irq(&pDevice->lock);
}
void BBvUpdatePreEDThreshold(struct vnt_private *priv, int scanning)
{
u8 cr_201 = 0x0, cr_206 = 0x0;

7
drivers/staging/vt6656/baseband.h
View File

@ -94,13 +94,6 @@ unsigned int BBuGetFrameTime(u8 preamble_type, u8 pkt_type,
void BBvCalculateParameter(struct vnt_private *, u32 frame_length,
u16 tx_rate, u8 pkt_type, struct vnt_phy_field *);
/* timer for antenna diversity */
void TimerSQ3CallBack(struct vnt_private *);
void TimerSQ3Tmax3CallBack(struct vnt_private *);
void BBvAntennaDiversity(struct vnt_private *, u8 byRxRate, u8 bySQ3);
void BBvSetShortSlotTime(struct vnt_private *);
void BBvSetVGAGainOffset(struct vnt_private *, u8 byData);
void BBvSetAntennaMode(struct vnt_private *, u8 byAntennaMode);

24
drivers/staging/vt6656/device.h
View File

@ -492,30 +492,6 @@ struct vnt_private {
u8 byRadioCtl;
u8 bHWRadioOff;
/* SQ3 functions for antenna diversity */
struct timer_list TimerSQ3Tmax1;
struct timer_list TimerSQ3Tmax2;
struct timer_list TimerSQ3Tmax3;
int bDiversityRegCtlON;
int bDiversityEnable;
unsigned long ulDiversityNValue;
unsigned long ulDiversityMValue;
u8 byTMax;
u8 byTMax2;
u8 byTMax3;
unsigned long ulSQ3TH;
unsigned long uDiversityCnt;
u8 byAntennaState;
unsigned long ulRatio_State0;
unsigned long ulRatio_State1;
unsigned long ulSQ3_State0;
unsigned long ulSQ3_State1;
unsigned long aulSQ3Val[MAX_RATE];
unsigned long aulPktNum[MAX_RATE];
/* IFS & Cw */
u32 uSIFS; /* Current SIFS */
u32 uDIFS; /* Current DIFS */

7
drivers/staging/vt6656/dpc.c
View File

@ -556,13 +556,6 @@ int RXbBulkInProcessData(struct vnt_private *pDevice, struct vnt_rcb *pRCB,
}
}
// Now it only supports 802.11g Infrastructure Mode, and support rate must up to 54 Mbps
if (pDevice->bDiversityEnable && (FrameSize>50) &&
pDevice->op_mode == NL80211_IFTYPE_STATION &&
(pDevice->bLinkPass == true)) {
BBvAntennaDiversity(pDevice, s_byGetRateIdx(*pbyRxRate), 0);
}
// ++++++++ For BaseBand Algorithm +++++++++++++++
pDevice->uCurrRSSI = *pbyRSSI;
pDevice->byCurrSQ = *pbySQ;

45
drivers/staging/vt6656/main_usb.c
View File

@ -214,7 +214,6 @@ static int device_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static int device_init_registers(struct vnt_private *pDevice);
static bool device_init_defrag_cb(struct vnt_private *pDevice);
static void device_init_diversity_timer(struct vnt_private *pDevice);
static int ethtool_ioctl(struct net_device *dev, struct ifreq *);
static void device_free_tx_bufs(struct vnt_private *pDevice);
@ -261,28 +260,6 @@ device_set_options(struct vnt_private *pDevice) {
pDevice->byAutoFBCtrl = AUTO_FB_0;
pDevice->byPreambleType = 0;
pDevice->bExistSWNetAddr = false;
/* pDevice->bDiversityRegCtlON = true; */
pDevice->bDiversityRegCtlON = false;
}
static void device_init_diversity_timer(struct vnt_private *pDevice)
{
init_timer(&pDevice->TimerSQ3Tmax1);
pDevice->TimerSQ3Tmax1.data = (unsigned long)pDevice;
pDevice->TimerSQ3Tmax1.function = (TimerFunction)TimerSQ3CallBack;
pDevice->TimerSQ3Tmax1.expires = RUN_AT(HZ);
init_timer(&pDevice->TimerSQ3Tmax2);
pDevice->TimerSQ3Tmax2.data = (unsigned long)pDevice;
pDevice->TimerSQ3Tmax2.function = (TimerFunction)TimerSQ3CallBack;
pDevice->TimerSQ3Tmax2.expires = RUN_AT(HZ);
init_timer(&pDevice->TimerSQ3Tmax3);
pDevice->TimerSQ3Tmax3.data = (unsigned long)pDevice;
pDevice->TimerSQ3Tmax3.function = (TimerFunction)TimerSQ3Tmax3CallBack;
pDevice->TimerSQ3Tmax3.expires = RUN_AT(HZ);
return;
}
/*
@ -444,13 +421,7 @@ static int device_init_registers(struct vnt_private *pDevice)
pDevice->byRxAntennaMode = ANT_A;
else
pDevice->byRxAntennaMode = ANT_B;
if (pDevice->bDiversityRegCtlON)
pDevice->bDiversityEnable = true;
else
pDevice->bDiversityEnable = false;
} else {
pDevice->bDiversityEnable = false;
pDevice->byAntennaCount = 1;
pDevice->dwTxAntennaSel = 0;
pDevice->dwRxAntennaSel = 0;
@ -472,13 +443,6 @@ static int device_init_registers(struct vnt_private *pDevice)
}
}
pDevice->ulDiversityNValue = 100 * 255;
pDevice->ulDiversityMValue = 100 * 16;
pDevice->byTMax = 1;
pDevice->byTMax2 = 4;
pDevice->ulSQ3TH = 0;
pDevice->byTMax3 = 64;
/* get Auto Fall Back type */
pDevice->byAutoFBCtrl = AUTO_FB_0;
@ -957,9 +921,6 @@ static int device_open(struct net_device *dev)
pDevice->bRoaming = false;
pDevice->bIsRoaming = false;
pDevice->bEnableRoaming = false;
if (pDevice->bDiversityRegCtlON) {
device_init_diversity_timer(pDevice);
}
vMgrObjectInit(pDevice);
@ -1053,12 +1014,6 @@ static int device_close(struct net_device *dev)
cancel_delayed_work_sync(&pDevice->run_command_work);
cancel_delayed_work_sync(&pDevice->second_callback_work);
if (pDevice->bDiversityRegCtlON) {
del_timer(&pDevice->TimerSQ3Tmax1);
del_timer(&pDevice->TimerSQ3Tmax2);
del_timer(&pDevice->TimerSQ3Tmax3);
}
cancel_work_sync(&pDevice->rx_mng_work_item);
cancel_work_sync(&pDevice->read_work_item);