/* * 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: device.h * * Purpose: MAC Data structure * * Author: Tevin Chen * * Date: Mar 17, 1997 * */ #ifndef __DEVICE_H__ #define __DEVICE_H__ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef SIOCETHTOOL #define DEVICE_ETHTOOL_IOCTL_SUPPORT #include #else #undef DEVICE_ETHTOOL_IOCTL_SUPPORT #endif /* please copy below macro to driver_event.c for API */ #define RT_INSMOD_EVENT_FLAG 0x0101 #define RT_UPDEV_EVENT_FLAG 0x0102 #define RT_DISCONNECTED_EVENT_FLAG 0x0103 #define RT_WPACONNECTED_EVENT_FLAG 0x0104 #define RT_DOWNDEV_EVENT_FLAG 0x0105 #define RT_RMMOD_EVENT_FLAG 0x0106 /* * device specific */ #include "device_cfg.h" #include "80211hdr.h" #include "tether.h" #include "wmgr.h" #include "wcmd.h" #include "mib.h" #include "srom.h" #include "rc4.h" #include "desc.h" #include "key.h" #include "card.h" #define VNT_USB_VENDOR_ID 0x160a #define VNT_USB_PRODUCT_ID 0x3184 #define MAC_MAX_CONTEXT_REG (256+128) #define MAX_MULTICAST_ADDRESS_NUM 32 #define MULTICAST_ADDRESS_LIST_SIZE (MAX_MULTICAST_ADDRESS_NUM * ETH_ALEN) #define DUPLICATE_RX_CACHE_LENGTH 5 #define NUM_KEY_ENTRY 11 #define TX_WEP_NONE 0 #define TX_WEP_OTF 1 #define TX_WEP_SW 2 #define TX_WEP_SWOTP 3 #define TX_WEP_OTPSW 4 #define TX_WEP_SW232 5 #define KEYSEL_WEP40 0 #define KEYSEL_WEP104 1 #define KEYSEL_TKIP 2 #define KEYSEL_CCMP 3 #define AUTO_FB_NONE 0 #define AUTO_FB_0 1 #define AUTO_FB_1 2 #define FB_RATE0 0 #define FB_RATE1 1 /* Antenna Mode */ #define ANT_A 0 #define ANT_B 1 #define ANT_DIVERSITY 2 #define ANT_RXD_TXA 3 #define ANT_RXD_TXB 4 #define ANT_UNKNOWN 0xFF #define ANT_TXA 0 #define ANT_TXB 1 #define ANT_RXA 2 #define ANT_RXB 3 #define MAXCHECKHANGCNT 4 /* Packet type */ #define TX_PKT_UNI 0x00 #define TX_PKT_MULTI 0x01 #define TX_PKT_BROAD 0x02 #define BB_VGA_LEVEL 4 #define BB_VGA_CHANGE_THRESHOLD 3 #ifndef RUN_AT #define RUN_AT(x) (jiffies+(x)) #endif /* DMA related */ #define RESERV_AC0DMA 4 #define PRIVATE_Message 0 #define DBG_PRT(l, p, args...) { if (l <= msglevel) printk(p, ##args); } #define PRINT_K(p, args...) { if (PRIVATE_Message) printk(p, ##args); } typedef enum __device_msg_level { MSG_LEVEL_ERR = 0, /* Errors causing abnormal operation */ MSG_LEVEL_NOTICE = 1, /* Errors needing user notification */ MSG_LEVEL_INFO = 2, /* Normal message. */ MSG_LEVEL_VERBOSE = 3, /* Will report all trival errors. */ MSG_LEVEL_DEBUG = 4 /* Only for debug purpose. */ } DEVICE_MSG_LEVEL, *PDEVICE_MSG_LEVEL; typedef enum __device_init_type { DEVICE_INIT_COLD = 0, /* cold init */ DEVICE_INIT_RESET, /* reset init or Dx to D0 power remain */ DEVICE_INIT_DXPL /* Dx to D0 power lost init */ } DEVICE_INIT_TYPE, *PDEVICE_INIT_TYPE; /* USB */ /* * Enum of context types for SendPacket */ typedef enum _CONTEXT_TYPE { CONTEXT_DATA_PACKET = 1, CONTEXT_MGMT_PACKET } CONTEXT_TYPE; /* RCB (Receive Control Block) */ typedef struct _RCB { void *Next; signed long Ref; void *pDevice; struct urb *pUrb; struct vnt_rx_mgmt sMngPacket; struct sk_buff *skb; int bBoolInUse; } RCB, *PRCB; /* used to track bulk out irps */ struct vnt_usb_send_context { void *pDevice; struct sk_buff *pPacket; struct urb *pUrb; unsigned int uBufLen; CONTEXT_TYPE Type; struct ethhdr sEthHeader; void *Next; bool bBoolInUse; unsigned char Data[MAX_TOTAL_SIZE_WITH_ALL_HEADERS]; }; /* structure got from configuration file as user-desired default settings */ typedef struct _DEFAULT_CONFIG { signed int ZoneType; signed int eConfigMode; signed int eAuthenMode; /* open/wep/wpa */ signed int bShareKeyAlgorithm; /* open-open/{open,wep}-sharekey */ signed int keyidx; /* wepkey index */ signed int eEncryptionStatus; } DEFAULT_CONFIG, *PDEFAULT_CONFIG; /* * Structure to keep track of USB interrupt packets */ typedef struct { unsigned int uDataLen; u8 * pDataBuf; /* struct urb *pUrb; */ bool bInUse; } INT_BUFFER, *PINT_BUFFER; /* 0:11A 1:11B 2:11G */ typedef enum _VIA_BB_TYPE { BB_TYPE_11A = 0, BB_TYPE_11B, BB_TYPE_11G } VIA_BB_TYPE, *PVIA_BB_TYPE; /* 0:11a, 1:11b, 2:11gb (only CCK in BasicRate), 3:11ga(OFDM in BasicRate) */ typedef enum _VIA_PKT_TYPE { PK_TYPE_11A = 0, PK_TYPE_11B, PK_TYPE_11GB, PK_TYPE_11GA } VIA_PKT_TYPE, *PVIA_PKT_TYPE; /*++ NDIS related */ typedef enum __DEVICE_NDIS_STATUS { STATUS_SUCCESS = 0, STATUS_FAILURE, STATUS_RESOURCES, STATUS_PENDING, } DEVICE_NDIS_STATUS, *PDEVICE_NDIS_STATUS; #define MAX_BSSIDINFO_4_PMKID 16 #define MAX_PMKIDLIST 5 /* flags for PMKID Candidate list structure */ #define NDIS_802_11_PMKID_CANDIDATE_PREAUTH_ENABLED 0x01 /* PMKID Structures */ typedef unsigned char NDIS_802_11_PMKID_VALUE[16]; typedef enum _NDIS_802_11_WEP_STATUS { Ndis802_11WEPEnabled, Ndis802_11Encryption1Enabled = Ndis802_11WEPEnabled, Ndis802_11WEPDisabled, Ndis802_11EncryptionDisabled = Ndis802_11WEPDisabled, Ndis802_11WEPKeyAbsent, Ndis802_11Encryption1KeyAbsent = Ndis802_11WEPKeyAbsent, Ndis802_11WEPNotSupported, Ndis802_11EncryptionNotSupported = Ndis802_11WEPNotSupported, Ndis802_11Encryption2Enabled, Ndis802_11Encryption2KeyAbsent, Ndis802_11Encryption3Enabled, Ndis802_11Encryption3KeyAbsent } NDIS_802_11_WEP_STATUS, *PNDIS_802_11_WEP_STATUS, NDIS_802_11_ENCRYPTION_STATUS, *PNDIS_802_11_ENCRYPTION_STATUS; typedef enum _NDIS_802_11_STATUS_TYPE { Ndis802_11StatusType_Authentication, Ndis802_11StatusType_MediaStreamMode, Ndis802_11StatusType_PMKID_CandidateList, Ndis802_11StatusTypeMax, /* not a real type, defined as upper bound */ } NDIS_802_11_STATUS_TYPE, *PNDIS_802_11_STATUS_TYPE; /* added new types for PMKID Candidate lists */ typedef struct _PMKID_CANDIDATE { NDIS_802_11_MAC_ADDRESS BSSID; unsigned long Flags; } PMKID_CANDIDATE, *PPMKID_CANDIDATE; typedef struct _BSSID_INFO { NDIS_802_11_MAC_ADDRESS BSSID; NDIS_802_11_PMKID_VALUE PMKID; } BSSID_INFO, *PBSSID_INFO; typedef struct tagSPMKID { unsigned long Length; unsigned long BSSIDInfoCount; BSSID_INFO BSSIDInfo[MAX_BSSIDINFO_4_PMKID]; } SPMKID, *PSPMKID; typedef struct tagSPMKIDCandidateEvent { NDIS_802_11_STATUS_TYPE StatusType; unsigned long Version; /* Version of the structure */ unsigned long NumCandidates; /* No. of pmkid candidates */ PMKID_CANDIDATE CandidateList[MAX_PMKIDLIST]; } SPMKIDCandidateEvent, *PSPMKIDCandidateEvent; /*++ 802.11h related */ #define MAX_QUIET_COUNT 8 typedef struct tagSQuietControl { bool bEnable; u32 dwStartTime; u8 byPeriod; u16 wDuration; } SQuietControl, *PSQuietControl; /* The receive duplicate detection cache entry */ typedef struct tagSCacheEntry{ u16 wFmSequence; u8 abyAddr2[ETH_ALEN]; u16 wFrameCtl; } SCacheEntry, *PSCacheEntry; typedef struct tagSCache{ /* The receive cache is updated circularly. The next entry to be written is * indexed by the "InPtr". */ unsigned int uInPtr; /* Place to use next */ SCacheEntry asCacheEntry[DUPLICATE_RX_CACHE_LENGTH]; } SCache, *PSCache; #define CB_MAX_RX_FRAG 64 /* * DeFragment Control Block, used for collecting fragments prior to reassembly */ typedef struct tagSDeFragControlBlock { u16 wSequence; u16 wFragNum; u8 abyAddr2[ETH_ALEN]; unsigned int uLifetime; struct sk_buff* skb; u8 * pbyRxBuffer; unsigned int cbFrameLength; bool bInUse; } SDeFragControlBlock, *PSDeFragControlBlock; /* flags for options */ #define DEVICE_FLAGS_UNPLUG 0x00000001UL #define DEVICE_FLAGS_PREAMBLE_TYPE 0x00000002UL #define DEVICE_FLAGS_OP_MODE 0x00000004UL #define DEVICE_FLAGS_PS_MODE 0x00000008UL #define DEVICE_FLAGS_80211h_MODE 0x00000010UL /* flags for driver status */ #define DEVICE_FLAGS_OPENED 0x00010000UL #define DEVICE_FLAGS_WOL_ENABLED 0x00080000UL /* flags for capabilities */ #define DEVICE_FLAGS_TX_ALIGN 0x01000000UL #define DEVICE_FLAGS_HAVE_CAM 0x02000000UL #define DEVICE_FLAGS_FLOW_CTRL 0x04000000UL /* flags for MII status */ #define DEVICE_LINK_FAIL 0x00000001UL #define DEVICE_SPEED_10 0x00000002UL #define DEVICE_SPEED_100 0x00000004UL #define DEVICE_SPEED_1000 0x00000008UL #define DEVICE_DUPLEX_FULL 0x00000010UL #define DEVICE_AUTONEG_ENABLE 0x00000020UL #define DEVICE_FORCED_BY_EEPROM 0x00000040UL /* for device_set_media_duplex */ #define DEVICE_LINK_CHANGE 0x00000001UL typedef struct __device_opt { int nRxDescs0; /* number of RX descriptors 0 */ int nTxDescs0; /* number of TX descriptors 0, 1, 2, 3 */ int rts_thresh; /* RTS threshold */ int frag_thresh; int OpMode; int data_rate; int channel_num; int short_retry; int long_retry; int bbp_type; u32 flags; } OPTIONS, *POPTIONS; struct vnt_private { /* netdev */ struct usb_device *usb; struct net_device *dev; struct net_device_stats stats; OPTIONS sOpts; struct tasklet_struct CmdWorkItem; struct tasklet_struct EventWorkItem; struct tasklet_struct ReadWorkItem; struct tasklet_struct RxMngWorkItem; u32 rx_buf_sz; int multicast_limit; u8 byRxMode; spinlock_t lock; u32 rx_bytes; u8 byRevId; u32 flags; unsigned long Flags; SCache sDupRxCache; SDeFragControlBlock sRxDFCB[CB_MAX_RX_FRAG]; u32 cbDFCB; u32 cbFreeDFCB; u32 uCurrentDFCBIdx; /* USB */ struct urb *pControlURB; struct urb *pInterruptURB; struct usb_ctrlrequest sUsbCtlRequest; u32 int_interval; /* Variables to track resources for the BULK In Pipe */ PRCB pRCBMem; PRCB apRCB[CB_MAX_RX_DESC]; u32 cbRD; PRCB FirstRecvFreeList; PRCB LastRecvFreeList; u32 NumRecvFreeList; PRCB FirstRecvMngList; PRCB LastRecvMngList; u32 NumRecvMngList; int bIsRxWorkItemQueued; int bIsRxMngWorkItemQueued; unsigned long ulRcvRefCount; /* packets that have not returned back */ /* Variables to track resources for the BULK Out Pipe */ struct vnt_usb_send_context *apTD[CB_MAX_TX_DESC]; u32 cbTD; /* Variables to track resources for the Interrupt In Pipe */ INT_BUFFER intBuf; int fKillEventPollingThread; int bEventAvailable; /* default config from file by user setting */ DEFAULT_CONFIG config_file; /* Statistic for USB */ unsigned long ulBulkInPosted; unsigned long ulBulkInError; unsigned long ulBulkInContCRCError; unsigned long ulBulkInBytesRead; unsigned long ulBulkOutPosted; unsigned long ulBulkOutError; unsigned long ulBulkOutContCRCError; unsigned long ulBulkOutBytesWrite; unsigned long ulIntInPosted; unsigned long ulIntInError; unsigned long ulIntInContCRCError; unsigned long ulIntInBytesRead; /* Version control */ u16 wFirmwareVersion; u8 byLocalID; u8 byRFType; u8 byBBRxConf; u8 byZoneType; int bZoneRegExist; u8 byOriginalZonetype; int bLinkPass; /* link status: OK or fail */ u8 abyCurrentNetAddr[ETH_ALEN]; u8 abyPermanentNetAddr[ETH_ALEN]; int bExistSWNetAddr; /* Adapter statistics */ SStatCounter scStatistic; /* 802.11 counter */ SDot11Counters s802_11Counter; /* Maintain statistical debug info. */ unsigned long packetsReceived; unsigned long packetsReceivedDropped; unsigned long packetsReceivedOverflow; unsigned long packetsSent; unsigned long packetsSentDropped; unsigned long SendContextsInUse; unsigned long RcvBuffersInUse; /* 802.11 management */ struct vnt_manager vnt_mgmt; u64 qwCurrTSF; u32 cbBulkInMax; int bPSRxBeacon; /* 802.11 MAC specific */ u32 uCurrRSSI; u8 byCurrSQ; /* Antenna Diversity */ int bTxRxAntInv; u32 dwRxAntennaSel; u32 dwTxAntennaSel; u8 byAntennaCount; u8 byRxAntennaMode; u8 byTxAntennaMode; 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 */ u32 uEIFS; /* Current EIFS */ u32 uSlot; /* Current SlotTime */ u32 uCwMin; /* Current CwMin */ u32 uCwMax; /* CwMax is fixed on 1023 */ /* PHY parameter */ u8 bySIFS; u8 byDIFS; u8 byEIFS; u8 bySlot; u8 byCWMaxMin; /* Rate */ VIA_BB_TYPE byBBType; /* 0: 11A, 1:11B, 2:11G */ VIA_PKT_TYPE byPacketType; /* 0:11a 1:11b 2:11gb 3:11ga */ u16 wBasicRate; u8 byACKRate; u8 byTopOFDMBasicRate; u8 byTopCCKBasicRate; u32 dwAotoRateTxOkCnt; u32 dwAotoRateTxFailCnt; u32 dwErrorRateThreshold[13]; u32 dwTPTable[MAX_RATE]; u8 abyEEPROM[EEP_MAX_CONTEXT_SIZE]; /*u32 alignment */ u8 byMinChannel; u8 byMaxChannel; u32 uConnectionRate; u8 byPreambleType; u8 byShortPreamble; /* CARD_PHY_TYPE */ u8 eConfigPHYMode; /* For RF Power table */ u8 byCCKPwr; u8 byOFDMPwrG; u8 byOFDMPwrA; u8 byCurPwr; u8 abyCCKPwrTbl[14]; u8 abyOFDMPwrTbl[14]; u8 abyOFDMAPwrTbl[42]; u16 wCurrentRate; u16 wRTSThreshold; u16 wFragmentationThreshold; u8 byShortRetryLimit; u8 byLongRetryLimit; CARD_OP_MODE eOPMode; int bBSSIDFilter; u16 wMaxTransmitMSDULifetime; u8 abyBSSID[ETH_ALEN]; u8 abyDesireBSSID[ETH_ALEN]; u32 dwMaxReceiveLifetime; /* dot11MaxReceiveLifetime */ int bCCK; int bEncryptionEnable; int bLongHeader; int bShortSlotTime; int bProtectMode; int bNonERPPresent; int bBarkerPreambleMd; u8 byERPFlag; u16 wUseProtectCntDown; int bRadioControlOff; int bRadioOff; /* Power save */ int bEnablePSMode; u16 wListenInterval; int bPWBitOn; WMAC_POWER_MODE ePSMode; unsigned long ulPSModeWaitTx; int bPSModeTxBurst; /* Beacon releated */ u16 wSeqCounter; int bBeaconBufReady; int bBeaconSent; int bFixRate; u8 byCurrentCh; u32 uScanTime; CMD_STATE eCommandState; CMD_CODE eCommand; int bBeaconTx; u8 byScanBBType; int bStopBeacon; int bStopDataPkt; int bStopTx0Pkt; u32 uAutoReConnectTime; u32 uIsroamingTime; /* 802.11 counter */ CMD_ITEM eCmdQueue[CMD_Q_SIZE]; u32 uCmdDequeueIdx; u32 uCmdEnqueueIdx; u32 cbFreeCmdQueue; int bCmdRunning; int bCmdClear; int bNeedRadioOFF; int bEnableRoaming; int bIsRoaming; int bFastRoaming; u8 bSameBSSMaxNum; u8 bSameBSSCurNum; int bRoaming; int b11hEable; unsigned long ulTxPower; /* Encryption */ NDIS_802_11_WEP_STATUS eEncryptionStatus; int bTransmitKey; NDIS_802_11_WEP_STATUS eOldEncryptionStatus; SKeyManagement sKey; u32 dwIVCounter; RC4Ext SBox; u8 abyPRNG[WLAN_WEPMAX_KEYLEN+3]; u8 byKeyIndex; int bAES; u32 uKeyLength; u8 abyKey[WLAN_WEP232_KEYLEN]; /* for AP mode */ u32 uAssocCount; int bMoreData; /* QoS */ int bGrpAckPolicy; u8 byAutoFBCtrl; int bTxMICFail; int bRxMICFail; /* For Update BaseBand VGA Gain Offset */ int bUpdateBBVGA; u32 uBBVGADiffCount; u8 byBBVGANew; u8 byBBVGACurrent; u8 abyBBVGA[BB_VGA_LEVEL]; signed long ldBmThreshold[BB_VGA_LEVEL]; u8 byBBPreEDRSSI; u8 byBBPreEDIndex; int bRadioCmd; u32 dwDiagRefCount; /* For FOE Tuning */ u8 byFOETuning; /* For Auto Power Tunning */ u8 byAutoPwrTunning; /* BaseBand Loopback Use */ u8 byBBCR4d; u8 byBBCRc9; u8 byBBCR88; u8 byBBCR09; /* command timer */ struct timer_list sTimerCommand; struct timer_list sTimerTxData; unsigned long nTxDataTimeCout; int fTxDataInSleep; int IsTxDataTrigger; int fWPA_Authened; /*is WPA/WPA-PSK or WPA2/WPA2-PSK authen?? */ u8 byReAssocCount; u8 byLinkWaitCount; struct ethhdr sTxEthHeader; struct ethhdr sRxEthHeader; u8 abyBroadcastAddr[ETH_ALEN]; u8 abySNAP_RFC1042[ETH_ALEN]; u8 abySNAP_Bridgetunnel[ETH_ALEN]; /* Pre-Authentication & PMK cache */ SPMKID gsPMKID; SPMKIDCandidateEvent gsPMKIDCandidate; /* for 802.11h */ int b11hEnable; int bChannelSwitch; u8 byNewChannel; u8 byChannelSwitchCount; /* WPA supplicant daemon */ int bWPADEVUp; int bwextstep0; int bwextstep1; int bwextstep2; int bwextstep3; int bWPASuppWextEnabled; /* user space daemon: hostapd, is used for HOSTAP */ int bEnableHostapd; int bEnable8021x; int bEnableHostWEP; struct net_device *apdev; int (*tx_80211)(struct sk_buff *skb, struct net_device *dev); u32 uChannel; struct iw_statistics wstats; /* wireless stats */ int bCommit; }; #define EnqueueRCB(_Head, _Tail, _RCB) \ { \ if (!_Head) { \ _Head = _RCB; \ } \ else { \ _Tail->Next = _RCB; \ } \ _RCB->Next = NULL; \ _Tail = _RCB; \ } #define DequeueRCB(Head, Tail) \ { \ PRCB RCB = Head; \ if (!RCB->Next) { \ Tail = NULL; \ } \ Head = RCB->Next; \ } #define ADD_ONE_WITH_WRAP_AROUND(uVar, uModulo) { \ if ((uVar) >= ((uModulo) - 1)) \ (uVar) = 0; \ else \ (uVar)++; \ } #define fMP_RESET_IN_PROGRESS 0x00000001 #define fMP_DISCONNECTED 0x00000002 #define fMP_HALT_IN_PROGRESS 0x00000004 #define fMP_SURPRISE_REMOVED 0x00000008 #define fMP_RECV_LOOKASIDE 0x00000010 #define fMP_INIT_IN_PROGRESS 0x00000020 #define fMP_SEND_SIDE_RESOURCE_ALLOCATED 0x00000040 #define fMP_RECV_SIDE_RESOURCE_ALLOCATED 0x00000080 #define fMP_POST_READS 0x00000100 #define fMP_POST_WRITES 0x00000200 #define fMP_CONTROL_READS 0x00000400 #define fMP_CONTROL_WRITES 0x00000800 #define MP_SET_FLAG(_M, _F) ((_M)->Flags |= (_F)) #define MP_CLEAR_FLAG(_M, _F) ((_M)->Flags &= ~(_F)) #define MP_TEST_FLAGS(_M, _F) (((_M)->Flags & (_F)) == (_F)) #define MP_IS_READY(_M) (((_M)->Flags & \ (fMP_DISCONNECTED | fMP_RESET_IN_PROGRESS | fMP_HALT_IN_PROGRESS | fMP_INIT_IN_PROGRESS | fMP_SURPRISE_REMOVED)) == 0) int device_alloc_frag_buf(struct vnt_private *, PSDeFragControlBlock pDeF); #endif