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-rw-r--r--drivers/staging/vt6655/baseband.c340
-rw-r--r--drivers/staging/vt6655/baseband.h17
-rw-r--r--drivers/staging/vt6655/device.h23
-rw-r--r--drivers/staging/vt6655/device_main.c56
-rw-r--r--drivers/staging/vt6655/dpc.c6
5 files changed, 0 insertions, 442 deletions
diff --git a/drivers/staging/vt6655/baseband.c b/drivers/staging/vt6655/baseband.c
index ecf7dac..565ba18 100644
--- a/drivers/staging/vt6655/baseband.c
+++ b/drivers/staging/vt6655/baseband.c
@@ -1699,46 +1699,6 @@ static const unsigned short awcFrameTime[MAX_RATE] = {
10, 20, 55, 110, 24, 36, 48, 72, 96, 144, 192, 216
};
-/*--------------------- Static Functions --------------------------*/
-
-static
-unsigned long
-s_ulGetRatio(struct vnt_private *priv);
-
-static
-void
-s_vChangeAntenna(
- struct vnt_private *priv
-);
-
-static
-void
-s_vChangeAntenna(
- struct vnt_private *priv
-)
-{
- if (priv->dwRxAntennaSel == 0) {
- priv->dwRxAntennaSel = 1;
- if (priv->bTxRxAntInv == true)
- BBvSetRxAntennaMode(priv, ANT_A);
- else
- BBvSetRxAntennaMode(priv, ANT_B);
- } else {
- priv->dwRxAntennaSel = 0;
- if (priv->bTxRxAntInv == true)
- BBvSetRxAntennaMode(priv, ANT_B);
- else
- BBvSetRxAntennaMode(priv, ANT_A);
- }
- if (priv->dwTxAntennaSel == 0) {
- priv->dwTxAntennaSel = 1;
- BBvSetTxAntennaMode(priv, ANT_B);
- } else {
- priv->dwTxAntennaSel = 0;
- BBvSetTxAntennaMode(priv, ANT_A);
- }
-}
-
/*--------------------- Export Variables --------------------------*/
/*
* Description: Calculate data frame transmitting time
@@ -2413,303 +2373,3 @@ BBvExitDeepSleep(struct vnt_private *priv, unsigned char byLocalID)
BBbWriteEmbedded(priv, 0x0C, 0x00); /* CR12 */
BBbWriteEmbedded(priv, 0x0D, 0x01); /* CR13 */
}
-
-static
-unsigned long
-s_ulGetRatio(struct vnt_private *priv)
-{
- unsigned long ulRatio = 0;
- unsigned long ulMaxPacket;
- unsigned long ulPacketNum;
-
- /* This is a thousand-ratio */
- ulMaxPacket = priv->uNumSQ3[RATE_54M];
- if (priv->uNumSQ3[RATE_54M] != 0) {
- ulPacketNum = priv->uNumSQ3[RATE_54M];
- ulRatio = (ulPacketNum * 1000 / priv->uDiversityCnt);
- ulRatio += TOP_RATE_54M;
- }
- if (priv->uNumSQ3[RATE_48M] > ulMaxPacket) {
- ulPacketNum = priv->uNumSQ3[RATE_54M] + priv->uNumSQ3[RATE_48M];
- ulRatio = (ulPacketNum * 1000 / priv->uDiversityCnt);
- ulRatio += TOP_RATE_48M;
- ulMaxPacket = priv->uNumSQ3[RATE_48M];
- }
- if (priv->uNumSQ3[RATE_36M] > ulMaxPacket) {
- ulPacketNum = priv->uNumSQ3[RATE_54M] + priv->uNumSQ3[RATE_48M] +
- priv->uNumSQ3[RATE_36M];
- ulRatio = (ulPacketNum * 1000 / priv->uDiversityCnt);
- ulRatio += TOP_RATE_36M;
- ulMaxPacket = priv->uNumSQ3[RATE_36M];
- }
- if (priv->uNumSQ3[RATE_24M] > ulMaxPacket) {
- ulPacketNum = priv->uNumSQ3[RATE_54M] + priv->uNumSQ3[RATE_48M] +
- priv->uNumSQ3[RATE_36M] + priv->uNumSQ3[RATE_24M];
- ulRatio = (ulPacketNum * 1000 / priv->uDiversityCnt);
- ulRatio += TOP_RATE_24M;
- ulMaxPacket = priv->uNumSQ3[RATE_24M];
- }
- if (priv->uNumSQ3[RATE_18M] > ulMaxPacket) {
- ulPacketNum = priv->uNumSQ3[RATE_54M] + priv->uNumSQ3[RATE_48M] +
- priv->uNumSQ3[RATE_36M] + priv->uNumSQ3[RATE_24M] +
- priv->uNumSQ3[RATE_18M];
- ulRatio = (ulPacketNum * 1000 / priv->uDiversityCnt);
- ulRatio += TOP_RATE_18M;
- ulMaxPacket = priv->uNumSQ3[RATE_18M];
- }
- if (priv->uNumSQ3[RATE_12M] > ulMaxPacket) {
- ulPacketNum = priv->uNumSQ3[RATE_54M] + priv->uNumSQ3[RATE_48M] +
- priv->uNumSQ3[RATE_36M] + priv->uNumSQ3[RATE_24M] +
- priv->uNumSQ3[RATE_18M] + priv->uNumSQ3[RATE_12M];
- ulRatio = (ulPacketNum * 1000 / priv->uDiversityCnt);
- ulRatio += TOP_RATE_12M;
- ulMaxPacket = priv->uNumSQ3[RATE_12M];
- }
- if (priv->uNumSQ3[RATE_11M] > ulMaxPacket) {
- ulPacketNum = priv->uDiversityCnt - priv->uNumSQ3[RATE_1M] -
- priv->uNumSQ3[RATE_2M] - priv->uNumSQ3[RATE_5M] -
- priv->uNumSQ3[RATE_6M] - priv->uNumSQ3[RATE_9M];
- ulRatio = (ulPacketNum * 1000 / priv->uDiversityCnt);
- ulRatio += TOP_RATE_11M;
- ulMaxPacket = priv->uNumSQ3[RATE_11M];
- }
- if (priv->uNumSQ3[RATE_9M] > ulMaxPacket) {
- ulPacketNum = priv->uDiversityCnt - priv->uNumSQ3[RATE_1M] -
- priv->uNumSQ3[RATE_2M] - priv->uNumSQ3[RATE_5M] -
- priv->uNumSQ3[RATE_6M];
- ulRatio = (ulPacketNum * 1000 / priv->uDiversityCnt);
- ulRatio += TOP_RATE_9M;
- ulMaxPacket = priv->uNumSQ3[RATE_9M];
- }
- if (priv->uNumSQ3[RATE_6M] > ulMaxPacket) {
- ulPacketNum = priv->uDiversityCnt - priv->uNumSQ3[RATE_1M] -
- priv->uNumSQ3[RATE_2M] - priv->uNumSQ3[RATE_5M];
- ulRatio = (ulPacketNum * 1000 / priv->uDiversityCnt);
- ulRatio += TOP_RATE_6M;
- ulMaxPacket = priv->uNumSQ3[RATE_6M];
- }
- if (priv->uNumSQ3[RATE_5M] > ulMaxPacket) {
- ulPacketNum = priv->uDiversityCnt - priv->uNumSQ3[RATE_1M] -
- priv->uNumSQ3[RATE_2M];
- ulRatio = (ulPacketNum * 1000 / priv->uDiversityCnt);
- ulRatio += TOP_RATE_55M;
- ulMaxPacket = priv->uNumSQ3[RATE_5M];
- }
- if (priv->uNumSQ3[RATE_2M] > ulMaxPacket) {
- ulPacketNum = priv->uDiversityCnt - priv->uNumSQ3[RATE_1M];
- ulRatio = (ulPacketNum * 1000 / priv->uDiversityCnt);
- ulRatio += TOP_RATE_2M;
- ulMaxPacket = priv->uNumSQ3[RATE_2M];
- }
- if (priv->uNumSQ3[RATE_1M] > ulMaxPacket) {
- ulPacketNum = priv->uDiversityCnt;
- ulRatio = (ulPacketNum * 1000 / priv->uDiversityCnt);
- ulRatio += TOP_RATE_1M;
- }
-
- return ulRatio;
-}
-
-void
-BBvClearAntDivSQ3Value(struct vnt_private *priv)
-{
- unsigned int ii;
-
- priv->uDiversityCnt = 0;
- for (ii = 0; ii < MAX_RATE; ii++)
- priv->uNumSQ3[ii] = 0;
-}
-
-/*
- * Description: Antenna Diversity
- *
- * Parameters:
- * In:
- * priv - Device Structure
- * byRSR - RSR from received packet
- * bySQ3 - SQ3 value from received packet
- * Out:
- * none
- *
- * Return Value: none
- *
- */
-
-void BBvAntennaDiversity(struct vnt_private *priv,
- unsigned char byRxRate, unsigned char bySQ3)
-{
- if ((byRxRate >= MAX_RATE) || (priv->wAntDiversityMaxRate >= MAX_RATE))
- return;
-
- priv->uDiversityCnt++;
-
- priv->uNumSQ3[byRxRate]++;
-
- if (priv->byAntennaState == 0) {
- if (priv->uDiversityCnt > priv->ulDiversityNValue) {
- pr_debug("ulDiversityNValue=[%d],54M-[%d]\n",
- (int)priv->ulDiversityNValue,
- (int)priv->uNumSQ3[(int)priv->wAntDiversityMaxRate]);
-
- if (priv->uNumSQ3[priv->wAntDiversityMaxRate] < priv->uDiversityCnt/2) {
- priv->ulRatio_State0 = s_ulGetRatio(priv);
- pr_debug("SQ3_State0, rate = [%08x]\n",
- (int)priv->ulRatio_State0);
-
- if (priv->byTMax == 0)
- return;
- pr_debug("1.[%08x], uNumSQ3[%d]=%d, %d\n",
- (int)priv->ulRatio_State0,
- (int)priv->wAntDiversityMaxRate,
- (int)priv->uNumSQ3[(int)priv->wAntDiversityMaxRate],
- (int)priv->uDiversityCnt);
-
- s_vChangeAntenna(priv);
- priv->byAntennaState = 1;
- del_timer(&priv->TimerSQ3Tmax3);
- del_timer(&priv->TimerSQ3Tmax2);
- priv->TimerSQ3Tmax1.expires = RUN_AT(priv->byTMax * HZ);
- add_timer(&priv->TimerSQ3Tmax1);
-
- } else {
- priv->TimerSQ3Tmax3.expires = RUN_AT(priv->byTMax3 * HZ);
- add_timer(&priv->TimerSQ3Tmax3);
- }
- BBvClearAntDivSQ3Value(priv);
-
- }
- } else { /* byAntennaState == 1 */
-
- if (priv->uDiversityCnt > priv->ulDiversityMValue) {
- del_timer(&priv->TimerSQ3Tmax1);
-
- priv->ulRatio_State1 = s_ulGetRatio(priv);
- pr_debug("RX:SQ3_State1, rate0 = %08x,rate1 = %08x\n",
- (int)priv->ulRatio_State0,
- (int)priv->ulRatio_State1);
-
- if (priv->ulRatio_State1 < priv->ulRatio_State0) {
- pr_debug("2.[%08x][%08x], uNumSQ3[%d]=%d, %d\n",
- (int)priv->ulRatio_State0,
- (int)priv->ulRatio_State1,
- (int)priv->wAntDiversityMaxRate,
- (int)priv->uNumSQ3[(int)priv->wAntDiversityMaxRate],
- (int)priv->uDiversityCnt);
-
- s_vChangeAntenna(priv);
- priv->TimerSQ3Tmax3.expires = RUN_AT(priv->byTMax3 * HZ);
- priv->TimerSQ3Tmax2.expires = RUN_AT(priv->byTMax2 * HZ);
- add_timer(&priv->TimerSQ3Tmax3);
- add_timer(&priv->TimerSQ3Tmax2);
- }
- priv->byAntennaState = 0;
- BBvClearAntDivSQ3Value(priv);
- }
- } /* byAntennaState */
-}
-
-/*+
- *
- * Description:
- * Timer for SQ3 antenna diversity
- *
- * Parameters:
- * In:
- * Out:
- * none
- *
- * Return Value: none
- *
- -*/
-
-void
-TimerSQ3CallBack(
- unsigned long data
-)
-{
- struct vnt_private *priv = (struct vnt_private *)data;
- unsigned long flags;
-
- pr_debug("TimerSQ3CallBack...\n");
-
- spin_lock_irqsave(&priv->lock, flags);
-
- pr_debug("3.[%08x][%08x], %d\n",
- (int)priv->ulRatio_State0, (int)priv->ulRatio_State1,
- (int)priv->uDiversityCnt);
-
- s_vChangeAntenna(priv);
- priv->byAntennaState = 0;
- BBvClearAntDivSQ3Value(priv);
-
- priv->TimerSQ3Tmax3.expires = RUN_AT(priv->byTMax3 * HZ);
- priv->TimerSQ3Tmax2.expires = RUN_AT(priv->byTMax2 * HZ);
- add_timer(&priv->TimerSQ3Tmax3);
- add_timer(&priv->TimerSQ3Tmax2);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-/*+
- *
- * Description:
- * Timer for SQ3 antenna diversity
- *
- * Parameters:
- * In:
- * pvSysSpec1
- * hDeviceContext - Pointer to the adapter
- * pvSysSpec2
- * pvSysSpec3
- * Out:
- * none
- *
- * Return Value: none
- *
- -*/
-
-void
-TimerState1CallBack(
- unsigned long data
-)
-{
- struct vnt_private *priv = (struct vnt_private *)data;
- unsigned long flags;
-
- pr_debug("TimerState1CallBack...\n");
-
- spin_lock_irqsave(&priv->lock, flags);
-
- if (priv->uDiversityCnt < priv->ulDiversityMValue/100) {
- s_vChangeAntenna(priv);
- priv->TimerSQ3Tmax3.expires = RUN_AT(priv->byTMax3 * HZ);
- priv->TimerSQ3Tmax2.expires = RUN_AT(priv->byTMax2 * HZ);
- add_timer(&priv->TimerSQ3Tmax3);
- add_timer(&priv->TimerSQ3Tmax2);
- } else {
- priv->ulRatio_State1 = s_ulGetRatio(priv);
- pr_debug("SQ3_State1, rate0 = %08x,rate1 = %08x\n",
- (int)priv->ulRatio_State0,
- (int)priv->ulRatio_State1);
-
- if (priv->ulRatio_State1 < priv->ulRatio_State0) {
- pr_debug("2.[%08x][%08x], uNumSQ3[%d]=%d, %d\n",
- (int)priv->ulRatio_State0,
- (int)priv->ulRatio_State1,
- (int)priv->wAntDiversityMaxRate,
- (int)priv->uNumSQ3[(int)priv->wAntDiversityMaxRate],
- (int)priv->uDiversityCnt);
-
- s_vChangeAntenna(priv);
-
- priv->TimerSQ3Tmax3.expires = RUN_AT(priv->byTMax3 * HZ);
- priv->TimerSQ3Tmax2.expires = RUN_AT(priv->byTMax2 * HZ);
- add_timer(&priv->TimerSQ3Tmax3);
- add_timer(&priv->TimerSQ3Tmax2);
- }
- }
- priv->byAntennaState = 0;
- BBvClearAntDivSQ3Value(priv);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-}
diff --git a/drivers/staging/vt6655/baseband.h b/drivers/staging/vt6655/baseband.h
index d9f6d63..43a4fb1 100644
--- a/drivers/staging/vt6655/baseband.h
+++ b/drivers/staging/vt6655/baseband.h
@@ -93,21 +93,4 @@ void BBvSetRxAntennaMode(struct vnt_private *, unsigned char byAntennaMode);
void BBvSetDeepSleep(struct vnt_private *, unsigned char byLocalID);
void BBvExitDeepSleep(struct vnt_private *, unsigned char byLocalID);
-/* timer for antenna diversity */
-
-void
-TimerSQ3CallBack(
- unsigned long
-);
-
-void
-TimerState1CallBack(
- unsigned long
-);
-
-void BBvAntennaDiversity(struct vnt_private *,
- unsigned char byRxRate, unsigned char bySQ3);
-void
-BBvClearAntDivSQ3Value(struct vnt_private *);
-
#endif /* __BASEBAND_H__ */
diff --git a/drivers/staging/vt6655/device.h b/drivers/staging/vt6655/device.h
index 96d8e62..440537e4 100644
--- a/drivers/staging/vt6655/device.h
+++ b/drivers/staging/vt6655/device.h
@@ -407,29 +407,6 @@ struct vnt_private {
unsigned char byBBCR88;
unsigned char byBBCR09;
- bool bDiversityRegCtlON;
- bool bDiversityEnable;
- unsigned long ulDiversityNValue;
- unsigned long ulDiversityMValue;
- unsigned char byTMax;
- unsigned char byTMax2;
- unsigned char byTMax3;
- unsigned long ulSQ3TH;
-
- /* ANT diversity */
- unsigned long uDiversityCnt;
- unsigned char byAntennaState;
- unsigned long ulRatio_State0;
- unsigned long ulRatio_State1;
-
- /* SQ3 functions for antenna diversity */
- struct timer_list TimerSQ3Tmax1;
- struct timer_list TimerSQ3Tmax2;
- struct timer_list TimerSQ3Tmax3;
-
- unsigned long uNumSQ3[MAX_RATE];
- unsigned short wAntDiversityMaxRate;
-
unsigned char abyEEPROM[EEP_MAX_CONTEXT_SIZE]; /* unsigned long alignment */
unsigned short wBeaconInterval;
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index 05be34b..0408e91 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -126,10 +126,6 @@ DEVICE_PARAM(LongRetryLimit, "long frame retry limits");
DEVICE_PARAM(BasebandType, "baseband type");
-#define DIVERSITY_ANT_DEF 0
-
-DEVICE_PARAM(bDiversityANTEnable, "ANT diversity mode");
-
//
// Static vars definitions
//
@@ -152,7 +148,6 @@ static void vt6655_init_info(struct pci_dev *pcid,
static void device_free_info(struct vnt_private *pDevice);
static bool device_get_pci_info(struct vnt_private *, struct pci_dev *pcid);
static void device_print_info(struct vnt_private *pDevice);
-static void device_init_diversity_timer(struct vnt_private *pDevice);
static irqreturn_t device_intr(int irq, void *dev_instance);
#ifdef CONFIG_PM
@@ -216,7 +211,6 @@ static void device_get_options(struct vnt_private *pDevice)
pOpts->short_retry = SHORT_RETRY_DEF;
pOpts->long_retry = LONG_RETRY_DEF;
pOpts->bbp_type = BBP_TYPE_DEF;
- pOpts->flags |= DEVICE_FLAGS_DiversityANT;
}
static void
@@ -224,7 +218,6 @@ device_set_options(struct vnt_private *pDevice)
{
pDevice->byShortRetryLimit = pDevice->sOpts.short_retry;
pDevice->byLongRetryLimit = pDevice->sOpts.long_retry;
- pDevice->bDiversityRegCtlON = (pDevice->sOpts.flags & DEVICE_FLAGS_DiversityANT) ? 1 : 0;
pDevice->byBBType = pDevice->sOpts.bbp_type;
pDevice->byPacketType = pDevice->byBBType;
pDevice->byAutoFBCtrl = AUTO_FB_0;
@@ -236,8 +229,6 @@ device_set_options(struct vnt_private *pDevice)
pr_debug(" byPreambleType= %d\n", (int)pDevice->byPreambleType);
pr_debug(" byShortPreamble= %d\n", (int)pDevice->byShortPreamble);
pr_debug(" byBBType= %d\n", (int)pDevice->byBBType);
- pr_debug(" pDevice->bDiversityRegCtlON= %d\n",
- (int)pDevice->bDiversityRegCtlON);
}
//
@@ -249,7 +240,6 @@ static void device_init_registers(struct vnt_private *pDevice)
unsigned long flags;
unsigned int ii;
unsigned char byValue;
- unsigned char byValue1;
unsigned char byCCKPwrdBm = 0;
unsigned char byOFDMPwrdBm = 0;
@@ -301,13 +291,6 @@ static void device_init_registers(struct vnt_private *pDevice)
if (byValue == 0)
byValue = (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
- pDevice->ulDiversityNValue = 100*260;
- pDevice->ulDiversityMValue = 100*16;
- pDevice->byTMax = 1;
- pDevice->byTMax2 = 4;
- pDevice->ulSQ3TH = 0;
- pDevice->byTMax3 = 64;
-
if (byValue == (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN)) {
pDevice->byAntennaCount = 2;
pDevice->byTxAntennaMode = ANT_B;
@@ -318,16 +301,7 @@ static void device_init_registers(struct vnt_private *pDevice)
pDevice->byRxAntennaMode = ANT_A;
else
pDevice->byRxAntennaMode = ANT_B;
-
- byValue1 = SROMbyReadEmbedded(pDevice->PortOffset,
- EEP_OFS_ANTENNA);
-
- if ((byValue1 & 0x08) == 0)
- pDevice->bDiversityEnable = false;
- else
- pDevice->bDiversityEnable = true;
} else {
- pDevice->bDiversityEnable = false;
pDevice->byAntennaCount = 1;
pDevice->dwTxAntennaSel = 0;
pDevice->dwRxAntennaSel = 0;
@@ -349,11 +323,6 @@ static void device_init_registers(struct vnt_private *pDevice)
}
}
- pr_debug("bDiversityEnable=[%d],NValue=[%d],MValue=[%d],TMax=[%d],TMax2=[%d]\n",
- pDevice->bDiversityEnable, (int)pDevice->ulDiversityNValue,
- (int)pDevice->ulDiversityMValue, pDevice->byTMax,
- pDevice->byTMax2);
-
/* zonetype initial */
pDevice->byOriginalZonetype = pDevice->abyEEPROM[EEP_OFS_ZONETYPE];
@@ -493,24 +462,6 @@ static void device_init_registers(struct vnt_private *pDevice)
MACvStart(pDevice->PortOffset);
}
-static void device_init_diversity_timer(struct vnt_private *pDevice)
-{
- init_timer(&pDevice->TimerSQ3Tmax1);
- pDevice->TimerSQ3Tmax1.data = (unsigned long) pDevice;
- pDevice->TimerSQ3Tmax1.function = TimerSQ3CallBack;
- pDevice->TimerSQ3Tmax1.expires = RUN_AT(HZ);
-
- init_timer(&pDevice->TimerSQ3Tmax2);
- pDevice->TimerSQ3Tmax2.data = (unsigned long) pDevice;
- pDevice->TimerSQ3Tmax2.function = TimerSQ3CallBack;
- pDevice->TimerSQ3Tmax2.expires = RUN_AT(HZ);
-
- init_timer(&pDevice->TimerSQ3Tmax3);
- pDevice->TimerSQ3Tmax3.data = (unsigned long) pDevice;
- pDevice->TimerSQ3Tmax3.function = TimerState1CallBack;
- pDevice->TimerSQ3Tmax3.expires = RUN_AT(HZ);
-}
-
static void device_print_info(struct vnt_private *pDevice)
{
dev_info(&pDevice->pcid->dev, "%s\n", get_chip_name(pDevice->chip_id));
@@ -1348,8 +1299,6 @@ static int vnt_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
switch (vif->type) {
case NL80211_IFTYPE_STATION:
- if (priv->bDiversityRegCtlON)
- device_init_diversity_timer(priv);
break;
case NL80211_IFTYPE_ADHOC:
MACvRegBitsOff(priv->PortOffset, MAC_REG_RCR, RCR_UNICAST);
@@ -1379,11 +1328,6 @@ static void vnt_remove_interface(struct ieee80211_hw *hw,
switch (vif->type) {
case NL80211_IFTYPE_STATION:
- if (priv->bDiversityRegCtlON) {
- del_timer(&priv->TimerSQ3Tmax1);
- del_timer(&priv->TimerSQ3Tmax2);
- del_timer(&priv->TimerSQ3Tmax3);
- }
break;
case NL80211_IFTYPE_ADHOC:
MACvRegBitsOff(priv->PortOffset, MAC_REG_TCR, TCR_AUTOBCNTX);
diff --git a/drivers/staging/vt6655/dpc.c b/drivers/staging/vt6655/dpc.c
index 977683c..11cc090 100644
--- a/drivers/staging/vt6655/dpc.c
+++ b/drivers/staging/vt6655/dpc.c
@@ -116,12 +116,6 @@ static bool vnt_rx_data(struct vnt_private *priv, struct sk_buff *skb,
rx_status.flag = RX_FLAG_DECRYPTED;
}
- if (priv->vif && priv->bDiversityEnable) {
- if (ieee80211_is_data(fc) &&
- (frame_size > 50) && priv->vif->bss_conf.assoc)
- BBvAntennaDiversity(priv, priv->rx_rate, 0);
- }
-
memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
ieee80211_rx_irqsafe(priv->hw, skb);
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