Initial import

1 files changed, 554 insertions, 0 deletions

diff --git a/drivers/staging/rtl8192e/rtl819x_TSProc.c b/drivers/staging/rtl8192e/rtl819x_TSProc.c
new file mode 100644
index 000000000..7d77d0562
--- /dev/null
+++ b/drivers/staging/rtl8192e/rtl819x_TSProc.c
@@ -0,0 +1,554 @@
+/******************************************************************************
+ * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
+ *
+ * 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, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * wlanfae <wlanfae@realtek.com>
+******************************************************************************/
+#include "rtllib.h"
+#include <linux/etherdevice.h>
+#include "rtl819x_TS.h"
+
+static void TsSetupTimeOut(unsigned long data)
+{
+}
+
+static void TsInactTimeout(unsigned long data)
+{
+}
+
+static void RxPktPendingTimeout(unsigned long data)
+{
+	struct rx_ts_record *pRxTs = (struct rx_ts_record *)data;
+	struct rtllib_device *ieee = container_of(pRxTs, struct rtllib_device,
+						  RxTsRecord[pRxTs->num]);
+
+	struct rx_reorder_entry *pReorderEntry = NULL;
+
+	unsigned long flags = 0;
+	u8 index = 0;
+	bool bPktInBuf = false;
+
+	spin_lock_irqsave(&(ieee->reorder_spinlock), flags);
+	if (pRxTs->RxTimeoutIndicateSeq != 0xffff) {
+		while (!list_empty(&pRxTs->RxPendingPktList)) {
+			pReorderEntry = (struct rx_reorder_entry *)
+					list_entry(pRxTs->RxPendingPktList.prev,
+					struct rx_reorder_entry, List);
+			if (index == 0)
+				pRxTs->RxIndicateSeq = pReorderEntry->SeqNum;
+
+			if (SN_LESS(pReorderEntry->SeqNum, pRxTs->RxIndicateSeq) ||
+				SN_EQUAL(pReorderEntry->SeqNum, pRxTs->RxIndicateSeq)) {
+				list_del_init(&pReorderEntry->List);
+
+				if (SN_EQUAL(pReorderEntry->SeqNum,
+				    pRxTs->RxIndicateSeq))
+					pRxTs->RxIndicateSeq =
+					      (pRxTs->RxIndicateSeq + 1) % 4096;
+
+				RTLLIB_DEBUG(RTLLIB_DL_REORDER,
+					     "%s(): Indicate SeqNum: %d\n",
+					     __func__, pReorderEntry->SeqNum);
+				ieee->stats_IndicateArray[index] =
+							 pReorderEntry->prxb;
+				index++;
+
+				list_add_tail(&pReorderEntry->List,
+					      &ieee->RxReorder_Unused_List);
+			} else {
+				bPktInBuf = true;
+				break;
+			}
+		}
+	}
+
+	if (index > 0) {
+		pRxTs->RxTimeoutIndicateSeq = 0xffff;
+
+		if (index > REORDER_WIN_SIZE) {
+			RTLLIB_DEBUG(RTLLIB_DL_ERR,
+				     "RxReorderIndicatePacket(): Rx Reorder struct buffer full!!\n");
+			spin_unlock_irqrestore(&(ieee->reorder_spinlock),
+					       flags);
+			return;
+		}
+		rtllib_indicate_packets(ieee, ieee->stats_IndicateArray, index);
+		bPktInBuf = false;
+	}
+
+	if (bPktInBuf && (pRxTs->RxTimeoutIndicateSeq == 0xffff)) {
+		pRxTs->RxTimeoutIndicateSeq = pRxTs->RxIndicateSeq;
+		mod_timer(&pRxTs->RxPktPendingTimer,  jiffies +
+			  msecs_to_jiffies(ieee->pHTInfo->RxReorderPendingTime));
+	}
+	spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
+}
+
+static void TsAddBaProcess(unsigned long data)
+{
+	struct tx_ts_record *pTxTs = (struct tx_ts_record *)data;
+	u8 num = pTxTs->num;
+	struct rtllib_device *ieee = container_of(pTxTs, struct rtllib_device,
+				     TxTsRecord[num]);
+
+	TsInitAddBA(ieee, pTxTs, BA_POLICY_IMMEDIATE, false);
+	RTLLIB_DEBUG(RTLLIB_DL_BA,
+		     "TsAddBaProcess(): ADDBA Req is started!!\n");
+}
+
+static void ResetTsCommonInfo(struct ts_common_info *pTsCommonInfo)
+{
+	memset(pTsCommonInfo->Addr, 0, 6);
+	memset(&pTsCommonInfo->TSpec, 0, sizeof(union tspec_body));
+	memset(&pTsCommonInfo->TClass, 0, sizeof(union qos_tclas)*TCLAS_NUM);
+	pTsCommonInfo->TClasProc = 0;
+	pTsCommonInfo->TClasNum = 0;
+}
+
+static void ResetTxTsEntry(struct tx_ts_record *pTS)
+{
+	ResetTsCommonInfo(&pTS->TsCommonInfo);
+	pTS->TxCurSeq = 0;
+	pTS->bAddBaReqInProgress = false;
+	pTS->bAddBaReqDelayed = false;
+	pTS->bUsingBa = false;
+	pTS->bDisable_AddBa = false;
+	ResetBaEntry(&pTS->TxAdmittedBARecord);
+	ResetBaEntry(&pTS->TxPendingBARecord);
+}
+
+static void ResetRxTsEntry(struct rx_ts_record *pTS)
+{
+	ResetTsCommonInfo(&pTS->TsCommonInfo);
+	pTS->RxIndicateSeq = 0xffff;
+	pTS->RxTimeoutIndicateSeq = 0xffff;
+	ResetBaEntry(&pTS->RxAdmittedBARecord);
+}
+
+void TSInitialize(struct rtllib_device *ieee)
+{
+	struct tx_ts_record *pTxTS  = ieee->TxTsRecord;
+	struct rx_ts_record *pRxTS  = ieee->RxTsRecord;
+	struct rx_reorder_entry *pRxReorderEntry = ieee->RxReorderEntry;
+	u8				count = 0;
+
+	RTLLIB_DEBUG(RTLLIB_DL_TS, "==========>%s()\n", __func__);
+	INIT_LIST_HEAD(&ieee->Tx_TS_Admit_List);
+	INIT_LIST_HEAD(&ieee->Tx_TS_Pending_List);
+	INIT_LIST_HEAD(&ieee->Tx_TS_Unused_List);
+
+	for (count = 0; count < TOTAL_TS_NUM; count++) {
+		pTxTS->num = count;
+		_setup_timer(&pTxTS->TsCommonInfo.SetupTimer,
+			    TsSetupTimeOut,
+			    (unsigned long) pTxTS);
+
+		_setup_timer(&pTxTS->TsCommonInfo.InactTimer,
+			    TsInactTimeout,
+			    (unsigned long) pTxTS);
+
+		_setup_timer(&pTxTS->TsAddBaTimer,
+			    TsAddBaProcess,
+			    (unsigned long) pTxTS);
+
+		_setup_timer(&pTxTS->TxPendingBARecord.Timer,
+			    BaSetupTimeOut,
+			    (unsigned long) pTxTS);
+		_setup_timer(&pTxTS->TxAdmittedBARecord.Timer,
+			    TxBaInactTimeout,
+			    (unsigned long) pTxTS);
+
+		ResetTxTsEntry(pTxTS);
+		list_add_tail(&pTxTS->TsCommonInfo.List,
+				&ieee->Tx_TS_Unused_List);
+		pTxTS++;
+	}
+
+	INIT_LIST_HEAD(&ieee->Rx_TS_Admit_List);
+	INIT_LIST_HEAD(&ieee->Rx_TS_Pending_List);
+	INIT_LIST_HEAD(&ieee->Rx_TS_Unused_List);
+	for (count = 0; count < TOTAL_TS_NUM; count++) {
+		pRxTS->num = count;
+		INIT_LIST_HEAD(&pRxTS->RxPendingPktList);
+
+		_setup_timer(&pRxTS->TsCommonInfo.SetupTimer,
+			    TsSetupTimeOut,
+			    (unsigned long) pRxTS);
+
+		_setup_timer(&pRxTS->TsCommonInfo.InactTimer,
+			    TsInactTimeout,
+			    (unsigned long) pRxTS);
+
+		_setup_timer(&pRxTS->RxAdmittedBARecord.Timer,
+			    RxBaInactTimeout,
+			    (unsigned long) pRxTS);
+
+		_setup_timer(&pRxTS->RxPktPendingTimer,
+			    RxPktPendingTimeout,
+			    (unsigned long) pRxTS);
+
+		ResetRxTsEntry(pRxTS);
+		list_add_tail(&pRxTS->TsCommonInfo.List,
+			      &ieee->Rx_TS_Unused_List);
+		pRxTS++;
+	}
+	INIT_LIST_HEAD(&ieee->RxReorder_Unused_List);
+	for (count = 0; count < REORDER_ENTRY_NUM; count++) {
+		list_add_tail(&pRxReorderEntry->List,
+			      &ieee->RxReorder_Unused_List);
+		if (count == (REORDER_ENTRY_NUM-1))
+			break;
+		pRxReorderEntry = &ieee->RxReorderEntry[count+1];
+	}
+
+}
+
+static void AdmitTS(struct rtllib_device *ieee,
+		    struct ts_common_info *pTsCommonInfo, u32 InactTime)
+{
+	del_timer_sync(&pTsCommonInfo->SetupTimer);
+	del_timer_sync(&pTsCommonInfo->InactTimer);
+
+	if (InactTime != 0)
+		mod_timer(&pTsCommonInfo->InactTimer, jiffies +
+			  msecs_to_jiffies(InactTime));
+}
+
+static struct ts_common_info *SearchAdmitTRStream(struct rtllib_device *ieee,
+						  u8 *Addr, u8 TID,
+						  enum tr_select TxRxSelect)
+{
+	u8	dir;
+	bool	search_dir[4] = {0};
+	struct list_head *psearch_list;
+	struct ts_common_info *pRet = NULL;
+
+	if (ieee->iw_mode == IW_MODE_MASTER) {
+		if (TxRxSelect == TX_DIR) {
+			search_dir[DIR_DOWN] = true;
+			search_dir[DIR_BI_DIR] = true;
+		} else {
+			search_dir[DIR_UP] = true;
+			search_dir[DIR_BI_DIR] = true;
+		}
+	} else if (ieee->iw_mode == IW_MODE_ADHOC) {
+		if (TxRxSelect == TX_DIR)
+			search_dir[DIR_UP] = true;
+		else
+			search_dir[DIR_DOWN] = true;
+	} else {
+		if (TxRxSelect == TX_DIR) {
+			search_dir[DIR_UP] = true;
+			search_dir[DIR_BI_DIR] = true;
+			search_dir[DIR_DIRECT] = true;
+		} else {
+			search_dir[DIR_DOWN] = true;
+			search_dir[DIR_BI_DIR] = true;
+			search_dir[DIR_DIRECT] = true;
+		}
+	}
+
+	if (TxRxSelect == TX_DIR)
+		psearch_list = &ieee->Tx_TS_Admit_List;
+	else
+		psearch_list = &ieee->Rx_TS_Admit_List;
+
+	for (dir = 0; dir <= DIR_BI_DIR; dir++) {
+		if (!search_dir[dir])
+			continue;
+		list_for_each_entry(pRet, psearch_list, List) {
+			if (memcmp(pRet->Addr, Addr, 6) == 0)
+				if (pRet->TSpec.f.TSInfo.field.ucTSID == TID)
+					if (pRet->TSpec.f.TSInfo.field.ucDirection == dir)
+						break;
+
+		}
+		if (&pRet->List  != psearch_list)
+			break;
+	}
+
+	if (pRet && &pRet->List  != psearch_list)
+		return pRet;
+	return NULL;
+}
+
+static void MakeTSEntry(struct ts_common_info *pTsCommonInfo, u8 *Addr,
+			union tspec_body *pTSPEC, union qos_tclas *pTCLAS,
+			u8 TCLAS_Num, u8 TCLAS_Proc)
+{
+	u8	count;
+
+	if (pTsCommonInfo == NULL)
+		return;
+
+	memcpy(pTsCommonInfo->Addr, Addr, 6);
+
+	if (pTSPEC != NULL)
+		memcpy((u8 *)(&(pTsCommonInfo->TSpec)), (u8 *)pTSPEC,
+			sizeof(union tspec_body));
+
+	for (count = 0; count < TCLAS_Num; count++)
+		memcpy((u8 *)(&(pTsCommonInfo->TClass[count])),
+		       (u8 *)pTCLAS, sizeof(union qos_tclas));
+
+	pTsCommonInfo->TClasProc = TCLAS_Proc;
+	pTsCommonInfo->TClasNum = TCLAS_Num;
+}
+
+bool GetTs(struct rtllib_device *ieee, struct ts_common_info **ppTS,
+	   u8 *Addr, u8 TID, enum tr_select TxRxSelect, bool bAddNewTs)
+{
+	u8	UP = 0;
+	union tspec_body TSpec;
+	union qos_tsinfo *pTSInfo = &TSpec.f.TSInfo;
+	struct list_head *pUnusedList;
+	struct list_head *pAddmitList;
+	enum direction_value Dir;
+
+	if (is_multicast_ether_addr(Addr)) {
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "ERR! get TS for Broadcast or Multicast\n");
+		return false;
+	}
+	if (ieee->current_network.qos_data.supported == 0) {
+		UP = 0;
+	} else {
+		if (!IsACValid(TID)) {
+			RTLLIB_DEBUG(RTLLIB_DL_ERR,
+				     "ERR! in %s(), TID(%d) is not valid\n",
+				     __func__, TID);
+			return false;
+		}
+
+		switch (TID) {
+		case 0:
+		case 3:
+			UP = 0;
+			break;
+		case 1:
+		case 2:
+			UP = 2;
+			break;
+		case 4:
+		case 5:
+			UP = 5;
+			break;
+		case 6:
+		case 7:
+			UP = 7;
+			break;
+		}
+	}
+
+	*ppTS = SearchAdmitTRStream(ieee, Addr, UP, TxRxSelect);
+	if (*ppTS != NULL)
+		return true;
+
+	if (!bAddNewTs) {
+		RTLLIB_DEBUG(RTLLIB_DL_TS,
+			     "add new TS failed(tid:%d)\n", UP);
+		return false;
+	}
+
+	pUnusedList = (TxRxSelect == TX_DIR) ?
+				(&ieee->Tx_TS_Unused_List) :
+				(&ieee->Rx_TS_Unused_List);
+
+	pAddmitList = (TxRxSelect == TX_DIR) ?
+				(&ieee->Tx_TS_Admit_List) :
+				(&ieee->Rx_TS_Admit_List);
+
+	Dir = (ieee->iw_mode == IW_MODE_MASTER) ?
+				((TxRxSelect == TX_DIR) ? DIR_DOWN : DIR_UP) :
+				((TxRxSelect == TX_DIR) ? DIR_UP : DIR_DOWN);
+
+	RTLLIB_DEBUG(RTLLIB_DL_TS, "to add Ts\n");
+	if (!list_empty(pUnusedList)) {
+		(*ppTS) = list_entry(pUnusedList->next,
+			  struct ts_common_info, List);
+		list_del_init(&(*ppTS)->List);
+		if (TxRxSelect == TX_DIR) {
+			struct tx_ts_record *tmp =
+				container_of(*ppTS,
+				struct tx_ts_record,
+				TsCommonInfo);
+			ResetTxTsEntry(tmp);
+		} else {
+			struct rx_ts_record *tmp =
+				 container_of(*ppTS,
+				 struct rx_ts_record,
+				 TsCommonInfo);
+			ResetRxTsEntry(tmp);
+		}
+
+		RTLLIB_DEBUG(RTLLIB_DL_TS,
+			     "to init current TS, UP:%d, Dir:%d, addr: %pM ppTs=%p\n",
+			     UP, Dir, Addr, *ppTS);
+		pTSInfo->field.ucTrafficType = 0;
+		pTSInfo->field.ucTSID = UP;
+		pTSInfo->field.ucDirection = Dir;
+		pTSInfo->field.ucAccessPolicy = 1;
+		pTSInfo->field.ucAggregation = 0;
+		pTSInfo->field.ucPSB = 0;
+		pTSInfo->field.ucUP = UP;
+		pTSInfo->field.ucTSInfoAckPolicy = 0;
+		pTSInfo->field.ucSchedule = 0;
+
+		MakeTSEntry(*ppTS, Addr, &TSpec, NULL, 0, 0);
+		AdmitTS(ieee, *ppTS, 0);
+		list_add_tail(&((*ppTS)->List), pAddmitList);
+
+		return true;
+	}
+
+	RTLLIB_DEBUG(RTLLIB_DL_ERR,
+		     "ERR!!in function %s() There is not enough dir=%d(0=up down=1) TS record to be used!!",
+		     __func__, Dir);
+	return false;
+}
+
+static void RemoveTsEntry(struct rtllib_device *ieee, struct ts_common_info *pTs,
+			  enum tr_select TxRxSelect)
+{
+	del_timer_sync(&pTs->SetupTimer);
+	del_timer_sync(&pTs->InactTimer);
+	TsInitDelBA(ieee, pTs, TxRxSelect);
+
+	if (TxRxSelect == RX_DIR) {
+		struct rx_reorder_entry *pRxReorderEntry;
+		struct rx_ts_record *pRxTS = (struct rx_ts_record *)pTs;
+
+		if (timer_pending(&pRxTS->RxPktPendingTimer))
+			del_timer_sync(&pRxTS->RxPktPendingTimer);
+
+		while (!list_empty(&pRxTS->RxPendingPktList)) {
+			pRxReorderEntry = (struct rx_reorder_entry *)
+					list_entry(pRxTS->RxPendingPktList.prev,
+					struct rx_reorder_entry, List);
+			RTLLIB_DEBUG(RTLLIB_DL_REORDER,
+				     "%s(): Delete SeqNum %d!\n", __func__,
+				     pRxReorderEntry->SeqNum);
+			list_del_init(&pRxReorderEntry->List);
+			{
+				int i = 0;
+				struct rtllib_rxb *prxb = pRxReorderEntry->prxb;
+
+				if (unlikely(!prxb))
+					return;
+				for (i = 0; i < prxb->nr_subframes; i++)
+					dev_kfree_skb(prxb->subframes[i]);
+				kfree(prxb);
+				prxb = NULL;
+			}
+			list_add_tail(&pRxReorderEntry->List,
+				      &ieee->RxReorder_Unused_List);
+		}
+	} else {
+		struct tx_ts_record *pTxTS = (struct tx_ts_record *)pTs;
+
+		del_timer_sync(&pTxTS->TsAddBaTimer);
+	}
+}
+
+void RemovePeerTS(struct rtllib_device *ieee, u8 *Addr)
+{
+	struct ts_common_info *pTS, *pTmpTS;
+
+	netdev_info(ieee->dev, "===========>RemovePeerTS, %pM\n", Addr);
+
+	list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List) {
+		if (memcmp(pTS->Addr, Addr, 6) == 0) {
+			RemoveTsEntry(ieee, pTS, TX_DIR);
+			list_del_init(&pTS->List);
+			list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
+		}
+	}
+
+	list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List) {
+		if (memcmp(pTS->Addr, Addr, 6) == 0) {
+			netdev_info(ieee->dev,
+				    "====>remove Tx_TS_admin_list\n");
+			RemoveTsEntry(ieee, pTS, TX_DIR);
+			list_del_init(&pTS->List);
+			list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
+		}
+	}
+
+	list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List) {
+		if (memcmp(pTS->Addr, Addr, 6) == 0) {
+			RemoveTsEntry(ieee, pTS, RX_DIR);
+			list_del_init(&pTS->List);
+			list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
+		}
+	}
+
+	list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List) {
+		if (memcmp(pTS->Addr, Addr, 6) == 0) {
+			RemoveTsEntry(ieee, pTS, RX_DIR);
+			list_del_init(&pTS->List);
+			list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
+		}
+	}
+}
+EXPORT_SYMBOL(RemovePeerTS);
+
+void RemoveAllTS(struct rtllib_device *ieee)
+{
+	struct ts_common_info *pTS, *pTmpTS;
+
+	list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List) {
+		RemoveTsEntry(ieee, pTS, TX_DIR);
+		list_del_init(&pTS->List);
+		list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
+	}
+
+	list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List) {
+		RemoveTsEntry(ieee, pTS, TX_DIR);
+		list_del_init(&pTS->List);
+		list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
+	}
+
+	list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List) {
+		RemoveTsEntry(ieee, pTS, RX_DIR);
+		list_del_init(&pTS->List);
+		list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
+	}
+
+	list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List) {
+		RemoveTsEntry(ieee, pTS, RX_DIR);
+		list_del_init(&pTS->List);
+		list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
+	}
+}
+
+void TsStartAddBaProcess(struct rtllib_device *ieee, struct tx_ts_record *pTxTS)
+{
+	if (pTxTS->bAddBaReqInProgress == false) {
+		pTxTS->bAddBaReqInProgress = true;
+
+		if (pTxTS->bAddBaReqDelayed) {
+			RTLLIB_DEBUG(RTLLIB_DL_BA,
+				     "TsStartAddBaProcess(): Delayed Start ADDBA after 60 sec!!\n");
+			mod_timer(&pTxTS->TsAddBaTimer, jiffies +
+				  msecs_to_jiffies(TS_ADDBA_DELAY));
+		} else {
+			RTLLIB_DEBUG(RTLLIB_DL_BA,
+				     "TsStartAddBaProcess(): Immediately Start ADDBA now!!\n");
+			mod_timer(&pTxTS->TsAddBaTimer, jiffies+10);
+		}
+	} else
+		RTLLIB_DEBUG(RTLLIB_DL_BA, "%s()==>BA timer is already added\n",
+			     __func__);
+}