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path: root/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
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Diffstat (limited to 'drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c')
-rw-r--r--drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c142
1 files changed, 50 insertions, 92 deletions
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
index fc6eb97801e1..f0b6b8372f91 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
@@ -214,7 +214,8 @@ int ieee80211_encrypt_fragment(
}
-void ieee80211_txb_free(struct ieee80211_txb *txb) {
+void ieee80211_txb_free(struct ieee80211_txb *txb)
+{
//int i;
if (unlikely(!txb))
return;
@@ -293,7 +294,7 @@ static void ieee80211_tx_query_agg_cap(struct ieee80211_device *ieee,
struct tx_ts_record *pTxTs = NULL;
struct rtl_80211_hdr_1addr *hdr = (struct rtl_80211_hdr_1addr *)skb->data;
- if (!pHTInfo->bCurrentHTSupport||!pHTInfo->bEnableHT)
+ if (!pHTInfo->bCurrentHTSupport || !pHTInfo->bEnableHT)
return;
if (!IsQoSDataFrame(skb->data))
return;
@@ -301,13 +302,6 @@ static void ieee80211_tx_query_agg_cap(struct ieee80211_device *ieee,
if (is_multicast_ether_addr(hdr->addr1))
return;
//check packet and mode later
-#ifdef TO_DO_LIST
- if (pTcb->PacketLength >= 4096)
- return;
- // For RTL819X, if pairwisekey = wep/tkip, we don't aggrregation.
- if (!Adapter->HalFunc.GetNmodeSupportBySecCfgHandler(Adapter))
- return;
-#endif
if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) {
return;
}
@@ -333,8 +327,7 @@ static void ieee80211_tx_query_agg_cap(struct ieee80211_device *ieee,
}
}
FORCED_AGG_SETTING:
- switch (pHTInfo->ForcedAMPDUMode )
- {
+ switch (pHTInfo->ForcedAMPDUMode) {
case HT_AGG_AUTO:
break;
@@ -372,7 +365,7 @@ ieee80211_query_HTCapShortGI(struct ieee80211_device *ieee, struct cb_desc *tcb_
tcb_desc->bUseShortGI = false;
- if (!pHTInfo->bCurrentHTSupport||!pHTInfo->bEnableHT)
+ if (!pHTInfo->bCurrentHTSupport || !pHTInfo->bEnableHT)
return;
if (pHTInfo->bForcedShortGI) {
@@ -380,9 +373,9 @@ ieee80211_query_HTCapShortGI(struct ieee80211_device *ieee, struct cb_desc *tcb_
return;
}
- if ((pHTInfo->bCurBW40MHz==true) && pHTInfo->bCurShortGI40MHz)
+ if ((pHTInfo->bCurBW40MHz == true) && pHTInfo->bCurShortGI40MHz)
tcb_desc->bUseShortGI = true;
- else if ((pHTInfo->bCurBW40MHz==false) && pHTInfo->bCurShortGI20MHz)
+ else if ((pHTInfo->bCurBW40MHz == false) && pHTInfo->bCurShortGI20MHz)
tcb_desc->bUseShortGI = true;
}
@@ -393,16 +386,16 @@ static void ieee80211_query_BandwidthMode(struct ieee80211_device *ieee,
tcb_desc->bPacketBW = false;
- if (!pHTInfo->bCurrentHTSupport||!pHTInfo->bEnableHT)
+ if (!pHTInfo->bCurrentHTSupport || !pHTInfo->bEnableHT)
return;
if (tcb_desc->bMulticast || tcb_desc->bBroadcast)
return;
- if ((tcb_desc->data_rate & 0x80)==0) // If using legacy rate, it shall use 20MHz channel.
+ if ((tcb_desc->data_rate & 0x80) == 0) // If using legacy rate, it shall use 20MHz channel.
return;
//BandWidthAutoSwitch is for auto switch to 20 or 40 in long distance
- if(pHTInfo->bCurBW40MHz && pHTInfo->bCurTxBW40MHz && !ieee->bandwidth_auto_switch.bforced_tx20Mhz)
+ if (pHTInfo->bCurBW40MHz && pHTInfo->bCurTxBW40MHz && !ieee->bandwidth_auto_switch.bforced_tx20Mhz)
tcb_desc->bPacketBW = true;
return;
}
@@ -418,25 +411,21 @@ static void ieee80211_query_protectionmode(struct ieee80211_device *ieee,
tcb_desc->RTSSC = 0; // 20MHz: Don't care; 40MHz: Duplicate.
tcb_desc->bRTSBW = false; // RTS frame bandwidth is always 20MHz
- if(tcb_desc->bBroadcast || tcb_desc->bMulticast)//only unicast frame will use rts/cts
+ if (tcb_desc->bBroadcast || tcb_desc->bMulticast) //only unicast frame will use rts/cts
return;
- if (is_broadcast_ether_addr(skb->data+16)) //check addr3 as infrastructure add3 is DA.
+ if (is_broadcast_ether_addr(skb->data + 16)) //check addr3 as infrastructure add3 is DA.
return;
- if (ieee->mode < IEEE_N_24G) //b, g mode
- {
+ if (ieee->mode < IEEE_N_24G) /* b, g mode */ {
// (1) RTS_Threshold is compared to the MPDU, not MSDU.
// (2) If there are more than one frag in this MSDU, only the first frag uses protection frame.
// Other fragments are protected by previous fragment.
// So we only need to check the length of first fragment.
- if (skb->len > ieee->rts)
- {
+ if (skb->len > ieee->rts) {
tcb_desc->bRTSEnable = true;
tcb_desc->rts_rate = MGN_24M;
- }
- else if (ieee->current_network.buseprotection)
- {
+ } else if (ieee->current_network.buseprotection) {
// Use CTS-to-SELF in protection mode.
tcb_desc->bRTSEnable = true;
tcb_desc->bCTSEnable = true;
@@ -444,43 +433,35 @@ static void ieee80211_query_protectionmode(struct ieee80211_device *ieee,
}
//otherwise return;
return;
- }
- else
- {// 11n High throughput case.
+ } else { // 11n High throughput case.
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
- while (true)
- {
+ while (true) {
//check ERP protection
- if (ieee->current_network.buseprotection)
- {// CTS-to-SELF
+ if (ieee->current_network.buseprotection) {// CTS-to-SELF
tcb_desc->bRTSEnable = true;
tcb_desc->bCTSEnable = true;
tcb_desc->rts_rate = MGN_24M;
break;
}
//check HT op mode
- if(pHTInfo->bCurrentHTSupport && pHTInfo->bEnableHT)
- {
+ if (pHTInfo->bCurrentHTSupport && pHTInfo->bEnableHT) {
u8 HTOpMode = pHTInfo->CurrentOpMode;
- if((pHTInfo->bCurBW40MHz && (HTOpMode == 2 || HTOpMode == 3)) ||
- (!pHTInfo->bCurBW40MHz && HTOpMode == 3) )
- {
+ if ((pHTInfo->bCurBW40MHz && (HTOpMode == 2 || HTOpMode == 3)) ||
+ (!pHTInfo->bCurBW40MHz && HTOpMode == 3)) {
tcb_desc->rts_rate = MGN_24M; // Rate is 24Mbps.
tcb_desc->bRTSEnable = true;
break;
}
}
//check rts
- if (skb->len > ieee->rts)
- {
+ if (skb->len > ieee->rts) {
tcb_desc->rts_rate = MGN_24M; // Rate is 24Mbps.
tcb_desc->bRTSEnable = true;
break;
}
//to do list: check MIMO power save condition.
//check AMPDU aggregation for TXOP
- if(tcb_desc->bAMPDUEnable)
- {
+ if (tcb_desc->bAMPDUEnable) {
tcb_desc->rts_rate = MGN_24M; // Rate is 24Mbps.
// According to 8190 design, firmware sends CF-End only if RTS/CTS is enabled. However, it degrads
// throughput around 10M, so we disable of this mechanism. 2007.08.03 by Emily
@@ -488,8 +469,7 @@ static void ieee80211_query_protectionmode(struct ieee80211_device *ieee,
break;
}
//check IOT action
- if(pHTInfo->IOTAction & HT_IOT_ACT_FORCED_CTS2SELF)
- {
+ if (pHTInfo->IOTAction & HT_IOT_ACT_FORCED_CTS2SELF) {
tcb_desc->bCTSEnable = true;
tcb_desc->rts_rate = MGN_24M;
tcb_desc->bRTSEnable = true;
@@ -508,7 +488,7 @@ static void ieee80211_query_protectionmode(struct ieee80211_device *ieee,
if (ieee->current_network.capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
tcb_desc->bUseShortPreamble = true;
if (ieee->mode == IW_MODE_MASTER)
- goto NO_PROTECTION;
+ goto NO_PROTECTION;
return;
NO_PROTECTION:
tcb_desc->bRTSEnable = false;
@@ -522,27 +502,12 @@ NO_PROTECTION:
static void ieee80211_txrate_selectmode(struct ieee80211_device *ieee,
struct cb_desc *tcb_desc)
{
-#ifdef TO_DO_LIST
- if (!IsDataFrame(pFrame)) {
- pTcb->bTxDisableRateFallBack = true;
- pTcb->bTxUseDriverAssingedRate = true;
- pTcb->RATRIndex = 7;
- return;
- }
-
- if (pMgntInfo->ForcedDataRate!= 0) {
- pTcb->bTxDisableRateFallBack = true;
- pTcb->bTxUseDriverAssingedRate = true;
- return;
- }
-#endif
if (ieee->bTxDisableRateFallBack)
tcb_desc->bTxDisableRateFallBack = true;
if (ieee->bTxUseDriverAssingedRate)
tcb_desc->bTxUseDriverAssingedRate = true;
- if (!tcb_desc->bTxDisableRateFallBack || !tcb_desc->bTxUseDriverAssingedRate)
- {
+ if (!tcb_desc->bTxDisableRateFallBack || !tcb_desc->bTxUseDriverAssingedRate) {
if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC)
tcb_desc->RATRIndex = 0;
}
@@ -553,11 +518,9 @@ static void ieee80211_query_seqnum(struct ieee80211_device *ieee,
{
if (is_multicast_ether_addr(dst))
return;
- if (IsQoSDataFrame(skb->data)) //we deal qos data only
- {
+ if (IsQoSDataFrame(skb->data)) /* we deal qos data only */ {
struct tx_ts_record *pTS = NULL;
- if (!GetTs(ieee, (struct ts_common_info **)(&pTS), dst, skb->priority, TX_DIR, true))
- {
+ if (!GetTs(ieee, (struct ts_common_info **)(&pTS), dst, skb->priority, TX_DIR, true)) {
return;
}
pTS->tx_cur_seq = (pTS->tx_cur_seq + 1) % 4096;
@@ -592,7 +555,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
/* If there is no driver handler to take the TXB, dont' bother
* creating it...
*/
- if ((!ieee->hard_start_xmit && !(ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE))||
+ if ((!ieee->hard_start_xmit && !(ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)) ||
((!ieee->softmac_data_hard_start_xmit && (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)))) {
printk(KERN_WARNING "%s: No xmit handler.\n",
ieee->dev->name);
@@ -631,7 +594,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
/* Save source and destination addresses */
memcpy(&dest, skb->data, ETH_ALEN);
- memcpy(&src, skb->data+ETH_ALEN, ETH_ALEN);
+ memcpy(&src, skb->data + ETH_ALEN, ETH_ALEN);
/* Advance the SKB to the start of the payload */
skb_pull(skb, sizeof(struct ethhdr));
@@ -646,7 +609,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
fc = IEEE80211_FTYPE_DATA;
//if(ieee->current_network.QoS_Enable)
- if(qos_actived)
+ if (qos_actived)
fc |= IEEE80211_STYPE_QOS_DATA;
else
fc |= IEEE80211_STYPE_DATA;
@@ -740,7 +703,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
for (i = 0; i < nr_frags; i++) {
skb_frag = txb->fragments[i];
tcb_desc = (struct cb_desc *)(skb_frag->cb + MAX_DEV_ADDR_SIZE);
- if(qos_actived){
+ if (qos_actived) {
skb_frag->priority = skb->priority;//UP2AC(skb->priority);
tcb_desc->queue_index = UP2AC(skb->priority);
} else {
@@ -749,15 +712,13 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
}
skb_reserve(skb_frag, ieee->tx_headroom);
- if (encrypt){
+ if (encrypt) {
if (ieee->hwsec_active)
tcb_desc->bHwSec = 1;
else
tcb_desc->bHwSec = 0;
skb_reserve(skb_frag, crypt->ops->extra_prefix_len);
- }
- else
- {
+ } else {
tcb_desc->bHwSec = 0;
}
frag_hdr = skb_put_data(skb_frag, &header, hdr_len);
@@ -775,12 +736,11 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
bytes = bytes_last_frag;
}
//if(ieee->current_network.QoS_Enable)
- if(qos_actived)
- {
+ if (qos_actived) {
// add 1 only indicate to corresponding seq number control 2006/7/12
- frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[UP2AC(skb->priority)+1]<<4 | i);
+ frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[UP2AC(skb->priority) + 1] << 4 | i);
} else {
- frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4 | i);
+ frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4 | i);
}
/* Put a SNAP header on the first fragment */
@@ -806,17 +766,16 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
skb_put(skb_frag, 4);
}
- if(qos_actived)
- {
- if (ieee->seq_ctrl[UP2AC(skb->priority) + 1] == 0xFFF)
- ieee->seq_ctrl[UP2AC(skb->priority) + 1] = 0;
- else
- ieee->seq_ctrl[UP2AC(skb->priority) + 1]++;
+ if (qos_actived) {
+ if (ieee->seq_ctrl[UP2AC(skb->priority) + 1] == 0xFFF)
+ ieee->seq_ctrl[UP2AC(skb->priority) + 1] = 0;
+ else
+ ieee->seq_ctrl[UP2AC(skb->priority) + 1]++;
} else {
- if (ieee->seq_ctrl[0] == 0xFFF)
- ieee->seq_ctrl[0] = 0;
- else
- ieee->seq_ctrl[0]++;
+ if (ieee->seq_ctrl[0] == 0xFFF)
+ ieee->seq_ctrl[0] = 0;
+ else
+ ieee->seq_ctrl[0]++;
}
} else {
if (unlikely(skb->len < sizeof(struct rtl_80211_hdr_3addr))) {
@@ -826,7 +785,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
}
txb = ieee80211_alloc_txb(1, skb->len, GFP_ATOMIC);
- if(!txb){
+ if (!txb) {
printk(KERN_WARNING "%s: Could not allocate TXB\n",
ieee->dev->name);
goto failed;
@@ -839,8 +798,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
success:
//WB add to fill data tcb_desc here. only first fragment is considered, need to change, and you may remove to other place.
- if (txb)
- {
+ if (txb) {
struct cb_desc *tcb_desc = (struct cb_desc *)(txb->fragments[0]->cb + MAX_DEV_ADDR_SIZE);
tcb_desc->bTxEnableFwCalcDur = 1;
if (is_multicast_ether_addr(header.addr1))
@@ -862,9 +820,9 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
spin_unlock_irqrestore(&ieee->lock, flags);
dev_kfree_skb_any(skb);
if (txb) {
- if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE){
+ if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE) {
ieee80211_softmac_xmit(txb, ieee);
- }else{
+ } else {
if ((*ieee->hard_start_xmit)(txb, dev) == 0) {
stats->tx_packets++;
stats->tx_bytes += __le16_to_cpu(txb->payload_size);