CORE/HDD/inc/wlan_hdd_main.h

/*
 * Copyright (c) 2012-2018 The Linux Foundation. All rights reserved.
 *
 * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
 *
 *
 * Permission to use, copy, modify, and/or distribute this software for
 * any purpose with or without fee is hereby granted, provided that the
 * above copyright notice and this permission notice appear in all
 * copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

/*
 * This file was originally distributed by Qualcomm Atheros, Inc.
 * under proprietary terms before Copyright ownership was assigned
 * to the Linux Foundation.
 */




#if !defined( WLAN_HDD_MAIN_H )
#define WLAN_HDD_MAIN_H
/**===========================================================================
  
  \file  WLAN_HDD_MAIN_H.h
  
  \brief Linux HDD Adapter Type
  
  ==========================================================================*/
  
/*--------------------------------------------------------------------------- 
  Include files
  -------------------------------------------------------------------------*/ 
  
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <net/cfg80211.h>
#include <vos_list.h>
#include <vos_types.h>
#include "sirMacProtDef.h"
#include "csrApi.h"
#include <wlan_hdd_assoc.h>
#include <wlan_hdd_dp_utils.h>
#include <wlan_hdd_wmm.h>
#include <wlan_hdd_cfg.h>
#include <linux/spinlock.h>

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0)) && \
	defined(WLAN_OPEN_SOURCE)
#include <linux/device.h>
#include <linux/pm_wakeup.h>
#else
#include <linux/wakelock.h>
#endif

#include <wlan_hdd_ftm.h>
#ifdef FEATURE_WLAN_TDLS
#include "wlan_hdd_tdls.h"
#endif
#include "wlan_hdd_cfg80211.h"

#include <linux/proc_fs.h> /* Necessary because we use the proc fs */
#include <linux/fs.h>
/*--------------------------------------------------------------------------- 
  Preprocessor definitions and constants
  -------------------------------------------------------------------------*/

/* SAP channel change wait time in ms */
#define HDD_SAP_CHAN_CNG_WAIT_TIME 1500

/** Number of attempts to detect/remove card */
#define LIBRA_CARD_INSERT_DETECT_MAX_COUNT      5
#define LIBRA_CARD_REMOVE_DETECT_MAX_COUNT      5

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)) || \
	defined(CFG80211_REMOVE_IEEE80211_BACKPORT)
#define HDD_NL80211_BAND_2GHZ   NL80211_BAND_2GHZ
#define HDD_NL80211_BAND_5GHZ   NL80211_BAND_5GHZ
#define HDD_NUM_NL80211_BANDS   NUM_NL80211_BANDS
#else
#define HDD_NL80211_BAND_2GHZ   IEEE80211_BAND_2GHZ
#define HDD_NL80211_BAND_5GHZ   IEEE80211_BAND_5GHZ
#define HDD_NUM_NL80211_BANDS   ((enum nl80211_band)IEEE80211_NUM_BANDS)
#endif

/** Number of Tx Queues. This should be same as the one
 *  used in TL WLANTL_NUM_TX_QUEUES */
#define NUM_TX_QUEUES 5

/** HDD's internal Tx Queue Length. Needs to be a power of 2 */
#define HDD_TX_QUEUE_MAX_LEN 128
/** HDD internal Tx Queue Low Watermark. Net Device TX queue is disabled
 *  when HDD queue becomes full. This Low watermark is used to enable
 *  the Net Device queue again */
#define HDD_TX_QUEUE_LOW_WATER_MARK (HDD_TX_QUEUE_MAX_LEN*3/4)
/** Bytes to reserve in the headroom */
#define LIBRA_HW_NEEDED_HEADROOM   128
/** Hdd Tx Time out value */
#ifdef LIBRA_LINUX_PC
#define HDD_TX_TIMEOUT          (8000)       
#else
#define HDD_TX_TIMEOUT          msecs_to_jiffies(5000)    
#endif
/** Hdd Default MTU */
#define HDD_DEFAULT_MTU         (1500)

/**event flags registered net device*/
#define NET_DEVICE_REGISTERED  (0)
#define SME_SESSION_OPENED     (1)
#define INIT_TX_RX_SUCCESS     (2)
#define WMM_INIT_DONE          (3)
#define SOFTAP_BSS_STARTED     (4)
#define DEVICE_IFACE_OPENED    (5)
#define TDLS_INIT_DONE         (6)
#define SOFTAP_INIT_DONE       (7)

/** Maximum time(ms)to wait for disconnect to complete **/
#define WLAN_WAIT_TIME_DISCONNECT  5000
#define WLAN_WAIT_DISCONNECT_ALREADY_IN_PROGRESS  1000
#define WLAN_WAIT_TIME_STATS       800
#define WLAN_WAIT_TIME_POWER       5000
#define WLAN_WAIT_TIME_COUNTRY     1000
#define WLAN_WAIT_TIME_CHANNEL_UPDATE   600
#define FW_STATE_WAIT_TIME 500
#define FW_STATE_RSP_LEN 100

#define WLAN_WAIT_TIME_FEATURE_CAPS 300

/* Amount of time to wait for sme close session callback.
   This value should be larger than the timeout used by WDI to wait for
   a response from WCNSS */
#define WLAN_WAIT_TIME_SESSIONOPENCLOSE  15000
#define WLAN_WAIT_TIME_ABORTSCAN  2000

/** Maximum time(ms) to wait for tdls add sta to complete **/
#define WAIT_TIME_TDLS_ADD_STA      1500

/** Maximum time(ms) to wait for tdls del sta to complete **/
#define WAIT_TIME_TDLS_DEL_STA      1500

/** Maximum time(ms) to wait for Link Establish Req to complete **/
#define WAIT_TIME_TDLS_LINK_ESTABLISH_REQ      1500

/** Maximum time(ms) to wait for tdls mgmt to complete **/
#define WAIT_TIME_TDLS_MGMT         11000

/** Maximum time(ms) to wait for tdls initiator to start direct communication **/
#define WAIT_TIME_TDLS_INITIATOR    600

/**Maximum time(ms) to wait for clear packet req to complete **/
#define PKT_FILTER_TIMEOUT 300

/* Maximum time to get linux regulatory entry settings */
#ifdef CONFIG_ENABLE_LINUX_REG
#define LINUX_REG_WAIT_TIME 300
#else
#define CRDA_WAIT_TIME 300
#endif

#define WAIT_TIME_FW_LOGS 2000
/* Scan Req Timeout */
#define WLAN_WAIT_TIME_SCAN_REQ 100

#define MAX_NUMBER_OF_ADAPTERS 4

#define MAX_CFG_STRING_LEN  255

#define MAC_ADDR_ARRAY(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
/** Mac Address string **/
#define MAC_ADDRESS_STR "%02x:%02x:%02x:%02x:%02x:%02x"
#define MAC_ADDRESS_STR_LEN 18 /* Including null terminator */
#define MAX_GENIE_LEN 255

#define WLAN_CHIP_VERSION   "WCNSS"

#define hddLog(level, args...) VOS_TRACE( VOS_MODULE_ID_HDD, level, ## args)
#define ENTER() VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, "Enter:%s", __func__)
#define EXIT()  VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, "Exit:%s", __func__)
#define ENTER_DEV(dev)  VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, "Enter:%s dev_name: %s", __func__, (dev)->name)

#define WLAN_HDD_GET_PRIV_PTR(__dev__) (hdd_adapter_t*)(netdev_priv((__dev__)))

#define MAX_EXIT_ATTEMPTS_DURING_LOGP 20

#define MAX_NO_OF_2_4_CHANNELS 14

#define WLAN_HDD_PUBLIC_ACTION_FRAME 4
#define WLAN_HDD_PUBLIC_ACTION_FRAME_OFFSET 24
#define WLAN_HDD_PUBLIC_ACTION_FRAME_BODY_OFFSET 24
#define WLAN_HDD_PUBLIC_ACTION_FRAME_TYPE_OFFSET 30
#define WLAN_HDD_PUBLIC_ACTION_FRAME_CATEGORY_OFFSET 0
#define WLAN_HDD_PUBLIC_ACTION_FRAME_ACTION_OFFSET 1
#define WLAN_HDD_PUBLIC_ACTION_FRAME_OUI_OFFSET 2
#define WLAN_HDD_PUBLIC_ACTION_FRAME_OUI_TYPE_OFFSET 5
#define WLAN_HDD_VENDOR_SPECIFIC_ACTION 0x09
#define WLAN_HDD_WFA_OUI   0x506F9A
#define WLAN_HDD_WFA_P2P_OUI_TYPE 0x09
#define WLAN_HDD_P2P_SOCIAL_CHANNELS 3
#define WLAN_HDD_P2P_SINGLE_CHANNEL_SCAN 1
#define WLAN_HDD_PUBLIC_ACTION_FRAME_SUB_TYPE_OFFSET 6

#define WLAN_HDD_IS_SOCIAL_CHANNEL(center_freq) \
(((center_freq) == 2412) || ((center_freq) == 2437) || ((center_freq) == 2462))

#define WLAN_HDD_CHANNEL_IN_UNII_1_BAND(center_freq) \
(((center_freq) == 5180 ) || ((center_freq) == 5200) \
|| ((center_freq) == 5220) || ((center_freq) == 5240))

#ifdef WLAN_FEATURE_11W
#define WLAN_HDD_SA_QUERY_ACTION_FRAME 8
#endif

#define WLAN_HDD_PUBLIC_ACTION_TDLS_DISC_RESP 14
#define WLAN_HDD_TDLS_ACTION_FRAME 12
#ifdef WLAN_FEATURE_HOLD_RX_WAKELOCK
#define HDD_WAKE_LOCK_DURATION 50 //in msecs
#endif

#define WLAN_HDD_QOS_ACTION_FRAME 1
#define WLAN_HDD_QOS_MAP_CONFIGURE 4
#define HDD_SAP_WAKE_LOCK_DURATION 10000 //in msecs

#define HDD_MOD_EXIT_SSR_MAX_RETRIES 30

/* Maximum number of interfaces allowed(STA, P2P Device, P2P Interface) */
#define WLAN_MAX_INTERFACES 3

/* station and monitor interface */
#define WLAN_STA_AND_MON_INTERFACES 2

#ifdef WLAN_FEATURE_GTK_OFFLOAD
#define GTK_OFFLOAD_ENABLE  0
#define GTK_OFFLOAD_DISABLE 1
#endif

#ifdef FEATURE_WLAN_SCAN_PNO
#define HDD_PNO_SCAN_TIMERS_SET_ONE      1
/* value should not be greater than PNO_MAX_SCAN_TIMERS */
#define HDD_PNO_SCAN_TIMERS_SET_MULTIPLE 6
#define WLAN_WAIT_TIME_PNO  2000
#endif

#define MAX_USER_COMMAND_SIZE 4096

#define HDD_MAC_ADDR_LEN    6
typedef v_U8_t tWlanHddMacAddr[HDD_MAC_ADDR_LEN];

#ifdef FEATURE_WLAN_BATCH_SCAN
#define HDD_BATCH_SCAN_VERSION (17)
#define HDD_SET_BATCH_SCAN_DEFAULT_FREQ (30)/*batch scan frequency default 30s*/
#define HDD_SET_BATCH_SCAN_BEST_NETWORK (16)/*best network default value*/
#define HDD_SET_BATCH_SCAN_DEFAULT_BAND (0)/*auto means both 2.4GHz and 5GHz*/
#define HDD_SET_BATCH_SCAN_24GHz_BAND_ONLY (1)/*only 2.4GHz band*/
#define HDD_SET_BATCH_SCAN_5GHz_BAND_ONLY (2)/*only 5GHz band*/
#define HDD_SET_BATCH_SCAN_REQ_TIME_OUT (15000) /*Batch scan req timeout in ms*/
#define HDD_GET_BATCH_SCAN_RSP_TIME_OUT (15000) /*Batch scan req timeout in ms*/
#define HDD_BATCH_SCAN_AP_META_INFO_SIZE (150) /*AP meta info size in string*/

#define MIN(a, b) (a > b ? b : a)

#endif
#define SCAN_REJECT_THRESHOLD_TIME 300000 /* Time is in msec, equal to 5 mins */
#define SCAN_REJECT_THRESHOLD 15


#define WLAN_WAIT_TIME_EXTSCAN  1000

#define HDD_MAX_STA_COUNT (HAL_NUM_STA)

#ifdef MDNS_OFFLOAD
#define MDNS_HEADER_LEN                           12
#define MDNS_FQDN_TYPE_GENERAL                    0
#define MDNS_FQDN_TYPE_UNIQUE                     1
#define MAX_NUM_FIELD_DOMAINNAME                  6
#define MAX_LEN_DOMAINNAME_FIELD                  64
#define MAX_MDNS_RESP_TYPE                        6
#define MDNS_TYPE_A                               1
#define MDNS_TYPE_TXT                             16
#define MDNS_TYPE_PTR                             12
#define MDNS_TYPE_PTR_DNAME                       13
#define MDNS_TYPE_SRV                             33
#define MDNS_TYPE_SRV_TARGET                      34
#define MDNS_CLASS                                1
#define MDNS_TTL                                  5
#endif /* MDNS_OFFLOAD */

#define VENDOR_AP_OUI_SIZE 3

#define HDD_MIN_TX_POWER (-100) /* minimum tx power */
#define HDD_MAX_TX_POWER (+100)  /* maximum tx power */
/*
 * Generic asynchronous request/response support
 *
 * Many of the APIs supported by HDD require a call to SME to
 * perform an action or to retrieve some data.  In most cases SME
 * performs the operation asynchronously, and will execute a provided
 * callback function when the request has completed.  In order to
 * synchronize this the HDD API allocates a context which is then
 * passed to SME, and which is then, in turn, passed back to the
 * callback function when the operation completes.  The callback
 * function then sets a completion variable inside the context which
 * the HDD API is waiting on.  In an ideal world the HDD API would
 * wait forever (or at least for a long time) for the response to be
 * received and for the completion variable to be set.  However in
 * most cases these HDD APIs are being invoked in the context of a
 * userspace thread which has invoked either a cfg80211 API or a
 * wireless extensions ioctl and which has taken the kernel rtnl_lock.
 * Since this lock is used to synchronize many of the kernel tasks, we
 * do not want to hold it for a long time.  In addition we do not want
 * to block userspace threads (such as the wpa supplicant's main
 * thread) for an extended time.  Therefore we only block for a short
 * time waiting for the response before we timeout.  This means that
 * it is possible for the HDD API to timeout, and for the callback to
 * be invoked afterwards.  In order for the callback function to
 * determine if the HDD API is still waiting, a magic value is also
 * stored in the shared context.  Only if the context has a valid
 * magic will the callback routine do any work.  In order to further
 * synchronize these activities a spinlock is used so that if any HDD
 * API timeout coincides with its callback, the operations of the two
 * threads will be serialized.
 */

struct statsContext
{
   struct completion completion;
   hdd_adapter_t *pAdapter;
   unsigned int magic;
};

struct getFrameLogCtx
{
   struct completion completion;
   hdd_adapter_t *pAdapter;
   unsigned int magic;
};

extern spinlock_t hdd_context_lock;

#define STATS_CONTEXT_MAGIC 0x53544154   //STAT
#define RSSI_CONTEXT_MAGIC  0x52535349   //RSSI
#define POWER_CONTEXT_MAGIC 0x504F5752   //POWR
#define BCN_MISS_RATE_CONTEXT_MAGIC 0x513F5753
#define FW_STATS_CONTEXT_MAGIC  0x5022474E //FW STATS
#define GET_FRAME_LOG_MAGIC   0x464c4f47   //FLOG
#define MON_MODE_MSG_MAGIC 0x51436B3A //MON_MODE
#define ANTENNA_CONTEXT_MAGIC 0x414E544E //ANTN
#define CLEAR_FILTER_MAGIC 0x52349732 //CLEAR FILTER
#define MON_MODE_MSG_TIMEOUT 5000
#define MON_MODE_START 1
#define MON_MODE_STOP  0

/*
 * Driver miracast parameters 0-Disabled
 * 1-Source, 2-Sink
 */
#define WLAN_HDD_DRIVER_MIRACAST_CFG_MIN_VAL 0
#define WLAN_HDD_DRIVER_MIRACAST_CFG_MAX_VAL 2

typedef struct hdd_tx_rx_stats_s
{
   // start_xmit stats
   __u32    txXmitCalled;
   __u32    txXmitDropped;
   __u32    txXmitBackPressured;
   __u32    txXmitQueued;
   __u32    txXmitClassifiedAC[NUM_TX_QUEUES];
   __u32    txXmitDroppedAC[NUM_TX_QUEUES];
   __u32    txXmitBackPressuredAC[NUM_TX_QUEUES];
   __u32    txXmitQueuedAC[NUM_TX_QUEUES];
   // fetch_cbk stats
   __u32    txFetched;
   __u32    txFetchedAC[NUM_TX_QUEUES];
   __u32    txFetchEmpty;
   __u32    txFetchLowResources;
   __u32    txFetchDequeueError;
   __u32    txFetchDequeued;
   __u32    txFetchDequeuedAC[NUM_TX_QUEUES];
   __u32    txFetchDePressured;
   __u32    txFetchDePressuredAC[NUM_TX_QUEUES];
   // complete_cbk_stats
   __u32    txCompleted;
   // flush stats
   __u32    txFlushed;
   __u32    txFlushedAC[NUM_TX_QUEUES];
   // Deque depressure stats
   __u32    txDequeDePressured;
   __u32    txDequeDePressuredAC[NUM_TX_QUEUES];
   // rx stats
   __u32    rxChains;
   __u32    rxPackets;
   __u32    rxDropped;
   __u32    rxDelivered;
   __u32    rxRefused;
   __u32    pkt_tx_count; //TX pkt Counter used for dynamic splitscan
   __u32    pkt_rx_count; //RX pkt Counter used for dynamic splitscan
#ifdef WLAN_FEATURE_LINK_LAYER_STATS
   __u32    txMcast[WIFI_AC_MAX];
#endif
   // tx timeout stats
   __u32    txTimeoutCount;
   __u32    continuousTxTimeoutCount;
   v_ULONG_t    jiffiesLastTxTimeOut;//Store time when last txtime out occur
} hdd_tx_rx_stats_t;

typedef struct hdd_chip_reset_stats_s
{
   __u32    totalLogpResets;
   __u32    totalCMD53Failures;
   __u32    totalMutexReadFailures;
   __u32    totalMIFErrorFailures;
   __u32    totalFWHearbeatFailures;
   __u32    totalUnknownExceptions;
} hdd_chip_reset_stats_t;

#ifdef WLAN_FEATURE_11W
typedef struct hdd_pmf_stats_s
{
   uint8    numUnprotDeauthRx;
   uint8    numUnprotDisassocRx;
} hdd_pmf_stats_t;
#endif

typedef enum
{
   HDD_TX_FRAME_IN_NOT_ASSOCIATED_STATE = 0,
   HDD_VOS_PACKET_RETURNED_BY_VOSS_IS_NULL,
   HDD_WLANTL_STAPKTPENDING_RETURNED_ERROR_CODE,
   HDD_INSERT_TX_QUEUE_FAILED,
   HDD_FAILED_TO_SIGNAL_TL,
   HDD_ERROR_ATTACHING_SKB,
   HDD_FAILURE_EXTRACTING_SKB_FROM_VOS_PKT,
   HDD_FAILURE_WALKING_PACKET_CHAIN,
   HDD_STA_RX_ARP_PACKET_REFUSED_IN_NET_STACK
} HDD_PACKET_DROP_CAUSE;

typedef struct hdd_arp_stats_s
{
   uint16   txCount;
   uint16   rxCount;
   uint16   txDropped;
   uint16   rxDropped;
   uint16   rxDelivered;
   uint16   rxRefused;
   uint16   tx_host_fw_sent;
   uint16   rx_host_drop_reorder;
   uint16_t tx_fw_cnt;
   uint16_t rx_fw_cnt;
   uint16_t tx_ack_cnt;
   HDD_PACKET_DROP_CAUSE reason;
} hdd_arp_stats_t;

typedef struct hdd_stats_s
{
   tCsrSummaryStatsInfo       summary_stat;
   tCsrGlobalClassAStatsInfo  ClassA_stat;
   tCsrGlobalClassBStatsInfo  ClassB_stat;
   tCsrGlobalClassCStatsInfo  ClassC_stat;
   tCsrGlobalClassDStatsInfo  ClassD_stat;
   tCsrPerStaStatsInfo        perStaStats;
   hdd_tx_rx_stats_t          hddTxRxStats;
   hdd_chip_reset_stats_t     hddChipResetStats;
   hdd_arp_stats_t            hddArpStats;
#ifdef WLAN_FEATURE_11W
   hdd_pmf_stats_t            hddPmfStats;
#endif
} hdd_stats_t;

typedef enum
{
   HDD_ROAM_STATE_NONE,
   
   // Issuing a disconnect due to transition into low power states.  
   HDD_ROAM_STATE_DISCONNECTING_POWER,
   
   // move to this state when HDD sets a key with SME/CSR.  Note this is
   // an important state to get right because we will get calls into our SME
   // callback routine for SetKey activity that we did not initiate!
   HDD_ROAM_STATE_SETTING_KEY,
} HDD_ROAM_STATE;

typedef enum
{
   eHDD_SUSPEND_NONE = 0,
   eHDD_SUSPEND_DEEP_SLEEP,
   eHDD_SUSPEND_STANDBY,
} hdd_ps_state_t;

typedef struct roaming_info_s
{
   HDD_ROAM_STATE roamingState;
   vos_event_t roamingEvent;

   tWlanHddMacAddr bssid;
   tWlanHddMacAddr peerMac;
   tANI_U32 roamId;
   eRoamCmdStatus roamStatus;
   v_BOOL_t deferKeyComplete;
   
} roaming_info_t;

#ifdef FEATURE_WLAN_WAPI
/* Define WAPI macros for Length, BKID count etc*/
#define MAX_WPI_KEY_LENGTH    16
#define MAX_NUM_PN            16
#define MAC_ADDR_LEN           6
#define MAX_ADDR_INDEX        12
#define MAX_NUM_AKM_SUITES    16
#define MAX_NUM_UNI_SUITES    16
#define MAX_NUM_BKIDS         16

/** WAPI AUTH mode definition */
enum _WAPIAuthMode
{
   WAPI_AUTH_MODE_OPEN = 0,
   WAPI_AUTH_MODE_PSK = 1,
   WAPI_AUTH_MODE_CERT
} __packed;
typedef enum _WAPIAuthMode WAPIAuthMode;

/** WAPI Work mode structure definition */
#define   WZC_ORIGINAL      0
#define   WAPI_EXTENTION    1

struct _WAPI_FUNCTION_MODE
{
   unsigned char wapiMode;
}__packed;

typedef struct _WAPI_FUNCTION_MODE WAPI_FUNCTION_MODE;

typedef struct _WAPI_BKID
{
   v_U8_t   bkid[16];
}WAPI_BKID, *pWAPI_BKID;

/** WAPI Association information structure definition */
struct _WAPI_AssocInfo
{
   v_U8_t      elementID;
   v_U8_t      length;
   v_U16_t     version;
   v_U16_t     akmSuiteCount;
   v_U32_t     akmSuite[MAX_NUM_AKM_SUITES];
   v_U16_t     unicastSuiteCount;
   v_U32_t     unicastSuite[MAX_NUM_UNI_SUITES];
   v_U32_t     multicastSuite;
   v_U16_t     wapiCability;
   v_U16_t     bkidCount;
   WAPI_BKID   bkidList[MAX_NUM_BKIDS];
} __packed;

typedef struct _WAPI_AssocInfo WAPI_AssocInfo;
typedef struct _WAPI_AssocInfo *pWAPI_IEAssocInfo;

/** WAPI KEY Type definition */
enum _WAPIKeyType
{
   PAIRWISE_KEY, //0
   GROUP_KEY     //1
}__packed;
typedef enum _WAPIKeyType WAPIKeyType;

/** WAPI KEY Direction definition */
enum _KEY_DIRECTION
{
   None,
   Rx,
   Tx,
   Rx_Tx
}__packed;

typedef enum _KEY_DIRECTION WAPI_KEY_DIRECTION;

/** WAPI KEY stucture definition */
struct WLAN_WAPI_KEY
{
   WAPIKeyType     keyType;
   WAPI_KEY_DIRECTION   keyDirection;  /*reserved for future use*/
   v_U8_t          keyId;
   v_U8_t          addrIndex[MAX_ADDR_INDEX]; /*reserved for future use*/
   int             wpiekLen;
   v_U8_t          wpiek[MAX_WPI_KEY_LENGTH];
   int             wpickLen;
   v_U8_t          wpick[MAX_WPI_KEY_LENGTH];
   v_U8_t          pn[MAX_NUM_PN];        /*reserved for future use*/
}__packed;

typedef struct WLAN_WAPI_KEY WLAN_WAPI_KEY;
typedef struct WLAN_WAPI_KEY *pWLAN_WAPI_KEY;

#define WPA_GET_LE16(a) ((u16) (((a)[1] << 8) | (a)[0]))
#define WPA_GET_BE24(a) ((u32) ( (a[0] << 16) | (a[1] << 8) | a[2]))
#define WLAN_EID_WAPI 68
#define WAPI_PSK_AKM_SUITE  0x02721400
#define WAPI_CERT_AKM_SUITE 0x01721400

/** WAPI BKID List stucture definition */
struct _WLAN_BKID_LIST
{
   v_U32_t          length;
   v_U32_t          BKIDCount;
   WAPI_BKID        BKID[1];
}__packed;

typedef struct _WLAN_BKID_LIST WLAN_BKID_LIST;
typedef struct _WLAN_BKID_LIST *pWLAN_BKID_LIST;


/** WAPI Information stucture definition */
struct hdd_wapi_info_s
{
   v_U32_t     nWapiMode;
   v_BOOL_t    fIsWapiSta;
   v_MACADDR_t cachedMacAddr;
   v_UCHAR_t   wapiAuthMode;
}__packed;
typedef struct hdd_wapi_info_s hdd_wapi_info_t;
#endif /* FEATURE_WLAN_WAPI */

typedef struct beacon_data_s {
    u8 *head;
    u8 *tail;
    u8 *proberesp_ies;
    u8 *assocresp_ies;
    int head_len;
    int tail_len;
    int proberesp_ies_len;
    int assocresp_ies_len;
    int dtim_period;
} beacon_data_t;

typedef enum device_mode
{  /* MAINTAIN 1 - 1 CORRESPONDENCE WITH tVOS_CON_MODE*/
   WLAN_HDD_INFRA_STATION,
   WLAN_HDD_SOFTAP,
   WLAN_HDD_P2P_CLIENT,
   WLAN_HDD_P2P_GO,
   WLAN_HDD_MONITOR,
   WLAN_HDD_FTM,
   WLAN_HDD_IBSS,
   WLAN_HDD_P2P_DEVICE
}device_mode_t;

typedef enum rem_on_channel_request_type
{
   REMAIN_ON_CHANNEL_REQUEST,
   OFF_CHANNEL_ACTION_TX,
}rem_on_channel_request_type_t;

/* Thermal mitigation Level Enum Type */
typedef enum
{
   WLAN_HDD_TM_LEVEL_0,
   WLAN_HDD_TM_LEVEL_1,
   WLAN_HDD_TM_LEVEL_2,
   WLAN_HDD_TM_LEVEL_3,
   WLAN_HDD_TM_LEVEL_4,
   WLAN_HDD_TM_LEVEL_MAX
} WLAN_TmLevelEnumType;

typedef enum
{
   WLAN_HDD_NO_LOAD_UNLOAD_IN_PROGRESS = 0 ,
   WLAN_HDD_LOAD_IN_PROGRESS           = 1<<0,
   WLAN_HDD_UNLOAD_IN_PROGRESS         = 1<<1,
}load_unload_sequence;

/* Driver Action based on thermal mitigation level structure */
typedef struct
{
   v_BOOL_t  ampduEnable;
   v_BOOL_t  enterImps;
   v_U32_t   txSleepDuration;
   v_U32_t   txOperationDuration;
   v_U32_t   txBlockFrameCountThreshold;
} hdd_tmLevelAction_t;

/* Thermal Mitigation control context structure */
typedef struct
{
   WLAN_TmLevelEnumType currentTmLevel;
   hdd_tmLevelAction_t  tmAction;
   vos_timer_t          txSleepTimer;
   struct mutex         tmOperationLock;
   vos_event_t          setTmDoneEvent;
   v_U32_t              txFrameCount;
   v_TIME_t             lastblockTs;
   v_TIME_t             lastOpenTs;
   struct netdev_queue *blockedQueue;
   v_BOOL_t             qBlocked;
} hdd_thermal_mitigation_info_t;
typedef struct action_pkt_buffer
{
   tANI_U8* frame_ptr;
   tANI_U32 frame_length;
   tANI_U16 freq;
}action_pkt_buffer_t;

typedef struct hdd_remain_on_chan_ctx
{
  struct net_device *dev;
  struct ieee80211_channel chan;
  enum nl80211_channel_type chan_type;
  unsigned int duration;
  u64 cookie;
  rem_on_channel_request_type_t rem_on_chan_request;
  vos_timer_t hdd_remain_on_chan_timer;
  action_pkt_buffer_t action_pkt_buff;
  v_U32_t hdd_remain_on_chan_cancel_in_progress;
  tANI_BOOLEAN is_pending_roc_cancelled;
}hdd_remain_on_chan_ctx_t;

typedef enum{
    HDD_IDLE,
    HDD_PD_REQ_ACK_PENDING,
    HDD_GO_NEG_REQ_ACK_PENDING,
    HDD_INVALID_STATE,
}eP2PActionFrameState;

typedef enum {
    WLAN_HDD_GO_NEG_REQ,
    WLAN_HDD_GO_NEG_RESP,
    WLAN_HDD_GO_NEG_CNF,
    WLAN_HDD_INVITATION_REQ,
    WLAN_HDD_INVITATION_RESP,
    WLAN_HDD_DEV_DIS_REQ,
    WLAN_HDD_DEV_DIS_RESP,
    WLAN_HDD_PROV_DIS_REQ,
    WLAN_HDD_PROV_DIS_RESP,
    WLAN_HDD_ACTION_FRM_TYPE_MAX = 255,
}tActionFrmType;

typedef struct hdd_cfg80211_state_s 
{
  tANI_U16 current_freq;
  u64 action_cookie;
  tANI_U8 *buf;
  size_t len;
  struct sk_buff *skb;
  hdd_remain_on_chan_ctx_t* remain_on_chan_ctx;
  eP2PActionFrameState actionFrmState;
  /*is_go_neg_ack_received flag is set to 1 when the
    pending ack for GO negotiation req is received*/
  v_BOOL_t is_go_neg_ack_received;
}hdd_cfg80211_state_t;


typedef enum{
    HDD_SSR_NOT_REQUIRED,
    HDD_SSR_REQUIRED,
    HDD_SSR_DISABLED,
}e_hdd_ssr_required;

/*---------------------------------------------------------------------------
  hdd_ibss_peer_info_params_t
---------------------------------------------------------------------------*/
typedef struct
{
    v_U8_t  staIdx;       //StaIdx
    v_U32_t txRate;       //Current Tx Rate
    v_U32_t mcsIndex;     //MCS Index
    v_U32_t txRateFlags;  //TxRate Flags
    v_S7_t  rssi;         //RSSI
}hdd_ibss_peer_info_params_t;

typedef struct {
    /** The station entry is used or not  */
    v_BOOL_t isUsed;

    /** Station ID reported back from HAL. Broadcast
     *  uses station ID zero by default. */
    v_U8_t ucSTAId;

    /** MAC address of the station */
    v_MACADDR_t macAddrSTA;

    /** Current Station state so HDD knows how to deal with packet
     *  queue. Most recent states used to change TL STA state. */
    WLANTL_STAStateType tlSTAState;

   /** Transmit queues for each AC (VO,VI,BE etc). */
   hdd_list_t wmm_tx_queue[NUM_TX_QUEUES];

   /** Might need to differentiate queue depth in contention case */
   v_U16_t aTxQueueDepth[NUM_TX_QUEUES];

   /**Track whether OS TX queue has been disabled.*/
   v_BOOL_t txSuspended[NUM_TX_QUEUES];

   /** Track QoS status of station */
   v_BOOL_t isQosEnabled;

   /** The station entry for which Deauth is in progress  */
   v_BOOL_t isDeauthInProgress;

} hdd_ibss_station_info_t;

typedef struct
{
    /** Request status */
    v_U32_t                       status;

    /** Number of peers */
    v_U8_t                        numIBSSPeers;

    /* IBSS Station table */
    hdd_ibss_station_info_t ibssStaInfo[HDD_MAX_NUM_IBSS_STA];

    /** Peer Info parameters */
    hdd_ibss_peer_info_params_t  ibssPeerList[HDD_MAX_NUM_IBSS_STA];
}hdd_ibss_peer_info_t;

struct hdd_station_ctx
{
  /** Handle to the Wireless Extension State */
   hdd_wext_state_t WextState;

#ifdef FEATURE_WLAN_TDLS
   tdlsCtx_t *pHddTdlsCtx;
#endif


   /**Connection information*/
   connection_info_t conn_info;

   connection_info_t cache_conn_info;

   roaming_info_t roam_info;

#if  defined (WLAN_FEATURE_VOWIFI_11R) || defined (FEATURE_WLAN_ESE) || defined(FEATURE_WLAN_LFR)
   int     ft_carrier_on;
#endif

#ifdef WLAN_FEATURE_GTK_OFFLOAD
   tSirGtkOffloadParams gtkOffloadReqParams;
#endif
   /*Increment whenever ibss New peer joins and departs the network */
   int ibss_sta_generation;

   /*Save the wep/wpa-none keys*/
   tCsrRoamSetKey ibss_enc_key;
   hdd_ibss_peer_info_t ibss_peer_info;

   v_BOOL_t hdd_ReassocScenario;
   v_BOOL_t get_mgmt_log_sent;

};

#define BSS_STOP    0 
#define BSS_START   1
typedef struct hdd_hostapd_state_s
{
    int bssState;
    vos_event_t vosEvent;
    VOS_STATUS vosStatus;
    vos_event_t sta_discon_event;
    v_BOOL_t bCommit; 

} hdd_hostapd_state_t;

#ifdef DHCP_SERVER_OFFLOAD
typedef struct hdd_dhcp_state_s
{
    VOS_STATUS dhcp_offload_status;
    vos_event_t vos_event;
} hdd_dhcp_state_t;
#endif /* DHCP_SERVER_OFFLOAD */

#ifdef MDNS_OFFLOAD
typedef struct hdd_mdns_state_s
{
    VOS_STATUS mdns_enable_status;
    VOS_STATUS mdns_fqdn_status;
    VOS_STATUS mdns_resp_status;
    vos_event_t vos_event;
} hdd_mdns_state_t;
#endif /* MDNS_OFFLOAD */

#ifdef WLAN_FEATURE_TSF

#define HDD_TSF_CAP_REQ_TIMEOUT 2000
#define HDD_TSF_GET_REQ_TIMEOUT 2000

/**
 * enum hdd_tsf_get_state - status of get tsf action
 *
 * TSF_RETURN:                   get tsf
 * TSF_STA_NOT_CONNECTED_NO_TSF: sta not connected to ap
 * TSF_NOT_RETURNED_BY_FW:       fw not returned tsf
 * TSF_CURRENT_IN_CAP_STATE:     driver in capture state
 * TSF_CAPTURE_FAIL:             capture fail
 * TSF_GET_FAIL:                 get fail
 * TSF_RESET_GPIO_FAIL:          GPIO reset fail
 * TSF_SAP_NOT_STARTED_NO_TSF    SAP not started
 */
enum hdd_tsf_get_state {
	TSF_RETURN = 0,
	TSF_STA_NOT_CONNECTED_NO_TSF,
	TSF_NOT_RETURNED_BY_FW,
	TSF_CURRENT_IN_CAP_STATE,
	TSF_CAPTURE_FAIL,
	TSF_GET_FAIL,
	TSF_RESET_GPIO_FAIL,
	TSF_SAP_NOT_STARTED_NO_TSF
};

/**
 * enum hdd_tsf_capture_state - status of capture
 *
 * TSF_IDLE:                     idle
 * TSF__CAP_STATE:               current is in capture state
 */
enum hdd_tsf_capture_state {
	TSF_IDLE = 0,
	TSF_CAP_STATE
};

/**
 * struct hdd_tsf_ctx_s - TSF capture ctx
 * @tsf_get_state : tsf action enum
 * @tsf_capture_state: tsf capture state enum
 * @tsf_capture_done_event : Indicate tsf completion
 * @tsf_high : Higher 32-bit for 64-bit tsf
 * @tsf_lo : Lower 32-bit for 64-bit tsf
 *
 */
struct hdd_tsf_ctx_s {
    enum hdd_tsf_get_state tsf_get_state;
    enum hdd_tsf_capture_state tsf_capture_state;
    vos_event_t tsf_capture_done_event;
    vos_spin_lock_t tsf_lock;
    uint32_t tsf_high;
    uint32_t tsf_low;
};

#endif /* WLAN_FEATURE_TSF */
/*
 * Per station structure kept in HDD for multiple station support for SoftAP
*/

struct hdd_ap_ctx_s
{
   hdd_hostapd_state_t HostapdState;

   // Memory differentiation mode is enabled
   //v_U16_t uMemoryDiffThreshold;
   //v_U8_t uNumActiveAC;
   //v_U8_t uActiveACMask;
   //v_U8_t aTxQueueLimit[NUM_TX_QUEUES];

   /** Packet Count to update uNumActiveAC and uActiveACMask */
   //v_U16_t uUpdatePktCount;

   /** Station ID assigned after BSS starts */
   v_U8_t uBCStaId;

   v_U8_t uPrivacy;  // The privacy bits of configuration

   tSirWPSPBCProbeReq WPSPBCProbeReq;

   tsap_Config_t sapConfig;

   struct semaphore semWpsPBCOverlapInd;
   
   v_BOOL_t apDisableIntraBssFwd;
      
   vos_timer_t hdd_ap_inactivity_timer;

   v_U8_t   operatingChannel;
   
   v_BOOL_t uIsAuthenticated;

   eCsrEncryptionType ucEncryptType;
   
   //This will point to group key data, if it is received before start bss. 
   tCsrRoamSetKey groupKey; 
   // This will have WEP key data, if it is received before start bss
   tCsrRoamSetKey wepKey[CSR_MAX_NUM_KEY];

   beacon_data_t *beacon;
};

#define NUM_FILTERS_SUPPORTED 1
struct filter
{
   v_MACADDR_t macAddr;
   v_BOOL_t isA1filter;
   v_BOOL_t isA2filter;
   v_BOOL_t isA3filter;
};

struct hdd_mon_ctx_s
{
  /* start or stop */
   v_BOOL_t state;
   /*Conversion of packet required or not*/
   v_BOOL_t is80211to803ConReq;
   v_U32_t ChannelNo;
   v_U32_t ChannelBW;
   v_BOOL_t crcCheckEnabled;
   v_U8_t numOfMacFilters;
   struct filter mmFilters[NUM_FILTERS_SUPPORTED];
   v_U64_t typeSubtypeBitmap;
   v_U64_t rsvd;
};

typedef struct hdd_scaninfo_s
{
   /* The scan id  */
   v_U32_t scanId; 

   /* The scan pending  */
   v_U32_t mScanPending;

  /* Counter for mScanPending so that the scan pending
     error log is not printed for more than 5 times    */
   v_U32_t mScanPendingCounter;

   /* Client Wait Scan Result */
   v_U32_t waitScanResult;

   /* Additional IE for scan */
   tSirAddie scanAddIE; 

   /* Scan mode*/
   tSirScanType scan_mode;

   /* Scan Completion Event */
   struct completion scan_req_completion_event;

   /* completion variable for abortscan */
   struct completion abortscan_event_var;

   vos_event_t scan_finished_event;

   hdd_scan_pending_option_e scan_pending_option;
   tANI_U8 sessionId;
   /* time to store last station scan done. */
   v_TIME_t     last_scan_timestamp;
   tANI_U8 last_scan_channelList[WNI_CFG_VALID_CHANNEL_LIST_LEN];
   tANI_U8 last_scan_numChannels;
   bool no_cck;

}hdd_scaninfo_t;

typedef struct
{
    struct wiphy *wiphy;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0))
    struct net_device *dev;
#endif
    struct cfg80211_scan_request *scan_request;
    int magic;
    int attempt;
    int reject;
    struct delayed_work scan_work;
}scan_context_t;

/* Changing value from 10 to 240, as later is
   supported by wcnss */
#define WLAN_HDD_MAX_MC_ADDR_LIST 240

#ifdef WLAN_FEATURE_PACKET_FILTERING
typedef struct multicast_addr_list
{
   v_U8_t isFilterApplied;
   v_U8_t mc_cnt;
   v_U8_t addr[WLAN_HDD_MAX_MC_ADDR_LIST][ETH_ALEN];
} t_multicast_add_list;
#endif

#ifdef FEATURE_WLAN_BATCH_SCAN

/*Batch scan repsonse AP info*/
typedef struct
{
    /*Batch ID*/
    tANI_U32 batchId;
    /*is it last AP in GET BATCH SCAN RSP*/
    v_BOOL_t isLastAp;
    /*BSSID*/
    tANI_U8  bssid[SIR_MAC_ADDR_LEN];
    /*SSID*/
    tANI_U8  ssid[SIR_MAX_SSID_SIZE + 1];
    /*Channel*/
    tANI_U8  ch;
    /*RSSI or Level*/
    tANI_S8  rssi;
    /*Age*/
    tANI_U32 age;
}tHDDbatchScanRspApInfo;

/*Batch scan response list*/
struct tHDDBatchScanRspList
{
    tHDDbatchScanRspApInfo ApInfo;
    struct tHDDBatchScanRspList *pNext;
};

typedef struct tHDDBatchScanRspList tHddBatchScanRsp;

/*Batch Scan state*/
typedef enum
{
   /*Batch scan is started this means WLS_BATCHING SET command is issued
     from framework*/
   eHDD_BATCH_SCAN_STATE_STARTED,

   /*Batch scan is stopped this means WLS_BATCHING STOP command is issued
     from framework*/
   eHDD_BATCH_SCAN_STATE_STOPPED,

   eHDD_BATCH_SCAN_STATE_MAX,
} eHDD_BATCH_SCAN_STATE;

#endif

#define HDD_SCAN_REJECT_RATE_LIMIT 5

/*
 * @eHDD_SCAN_REJECT_DEFAULT: default value
 * @eHDD_CONNECTION_IN_PROGRESS: connection is in progress
 * @eHDD_REASSOC_IN_PROGRESS: reassociation is in progress
 * @eHDD_EAPOL_IN_PROGRESS: STA/P2P-CLI is in middle of EAPOL/WPS exchange
 * @eHDD_SAP_EAPOL_IN_PROGRESS: SAP/P2P-GO is in middle of EAPOL/WPS exchange
 */
typedef enum
{
   eHDD_SCAN_REJECT_DEFAULT = 0,
   eHDD_CONNECTION_IN_PROGRESS,
   eHDD_REASSOC_IN_PROGRESS,
   eHDD_EAPOL_IN_PROGRESS,
   eHDD_SAP_EAPOL_IN_PROGRESS,
} scan_reject_states;

typedef struct
{
   struct completion completion;
   tANI_U32 magic;
   hdd_adapter_t *pAdapter;
}fwStatsContext_t;

#define WLAN_HDD_ADAPTER_MAGIC 0x574c414e //ASCII "WLAN"

struct hdd_adapter_s
{
   void *pHddCtx;

   device_mode_t device_mode; 

   /** Handle to the network device */
   struct net_device *dev;

#ifdef WLAN_NS_OFFLOAD
   /** IPv6 notifier callback for handling NS offload on change in IP */
   struct work_struct  ipv6NotifierWorkQueue;
#endif
    
   /** IPv4 notifier callback for handling ARP offload on change in IP */
   struct work_struct  ipv4NotifierWorkQueue;

   //TODO Move this to sta Ctx
   struct wireless_dev wdev ;
   struct cfg80211_scan_request *request ; 

   /** ops checks if Opportunistic Power Save is Enable or Not
    * ctw stores ctWindow value once we receive Opps command from 
    * wpa_supplicant then using ctWindow value we need to Enable 
    * Opportunistic Power Save
    */
    tANI_U8  ops;
    tANI_U32 ctw;

   /** Current MAC Address for the adapter  */       
   v_MACADDR_t macAddressCurrent;    
      
   /**Event Flags*/
   unsigned long event_flags;

   /**Device TX/RX statistics*/
   struct net_device_stats stats;
   /** HDD statistics*/
   hdd_stats_t hdd_stats;
   /**Mib information*/
   sHddMib_t  hdd_mib;
           
   tANI_U8 sessionId;

   /* Completion variable for session close */
   struct completion session_close_comp_var;

   /* Completion variable for session open */
   struct completion session_open_comp_var;

   //TODO: move these to sta ctx. These may not be used in AP 
   /** completion variable for disconnect callback */
   struct completion disconnect_comp_var;

   /** Completion of change country code */
   struct completion change_country_code;

   /* completion variable for Linkup Event */
   struct completion linkup_event_var;

   /* completion variable for cancel remain on channel Event */
   struct completion cancel_rem_on_chan_var;

   /** completion variable for PNO req callback */
   struct completion pno_comp_var;
   int pno_req_status;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
   /* completion variable for off channel  remain on channel Event */
   struct completion offchannel_tx_event;
#endif
   /* Completion variable for action frame */
   struct completion tx_action_cnf_event;
   /* Completion variable for remain on channel ready */
   struct completion rem_on_chan_ready_event;

   /* Completion variable for Upper Layer Authentication */
   struct completion ula_complete;

#ifdef FEATURE_WLAN_TDLS
   struct completion tdls_add_station_comp;
   struct completion tdls_del_station_comp;
   struct completion tdls_mgmt_comp;
   struct completion tdls_link_establish_req_comp;
   eHalStatus tdlsAddStaStatus;
#endif

#ifdef WLAN_FEATURE_RMC
   struct completion ibss_peer_info_comp;
#endif /* WLAN_FEATURE_RMC */

   /* completion variable for wlan suspend */
   struct completion wlan_suspend_comp_var;

   /* Track whether the linkup handling is needed  */
   v_BOOL_t isLinkUpSvcNeeded;

   /* Mgmt Frames TX completion status code */
   tANI_U32 mgmtTxCompletionStatus;

/*************************************************************
 *  Tx Queues
 */
   /** Transmit queues for each AC (VO,VI,BE etc) */
   hdd_list_t wmm_tx_queue[NUM_TX_QUEUES];
   /**Track whether VOS is in a low resource state*/
   v_BOOL_t isVosOutOfResource;

   /**Track whether 3/4th of resources are used */
   v_BOOL_t isVosLowResource;
  
   /**Track whether OS TX queue has been disabled.*/
   v_BOOL_t isTxSuspended[NUM_TX_QUEUES];

   /** WMM Status */
   hdd_wmm_status_t hddWmmStatus;
/*************************************************************
 */
/*************************************************************
 * TODO - Remove it later
 */
    /** Multiple station supports */
   /** Per-station structure */
   //v_U8_t uNumActiveStation;

   v_U16_t aTxQueueLimit[NUM_TX_QUEUES];
/*************************************************************
 */

#ifdef FEATURE_WLAN_WAPI
   hdd_wapi_info_t wapi_info;
#endif

   /* Keep track ns offload count */
   v_U8_t ns_slots;

   v_S7_t rssi;
   v_S7_t rssi_on_disconnect;

   tANI_U8 snr;

   struct work_struct  monTxWorkQueue;
   struct sk_buff *skb_to_tx;

   /* sta_id to mac addr hash*/
   spinlock_t sta_hash_lock;
   tANI_U8 is_sta_id_hash_initialized;
   struct sta_hash{
      tANI_U16 mask;
      tANI_U16 idx_bits;
      hdd_list_t *bins;
   } sta_id_hash;

   union {
      hdd_station_ctx_t station;
      hdd_ap_ctx_t  ap;
      hdd_mon_ctx_t monitor;
   }sessionCtx;

   hdd_cfg80211_state_t cfg80211State;

#ifdef WLAN_FEATURE_PACKET_FILTERING
   t_multicast_add_list mc_addr_list;
#endif

   //Magic cookie for adapter sanity verification
   v_U32_t magic;
   v_BOOL_t higherDtimTransition;
   v_BOOL_t survey_idx;

#ifdef FEATURE_WLAN_BATCH_SCAN
   /*Completion variable for set batch scan request*/
   struct completion hdd_set_batch_scan_req_var;
   /*Completion variable for get batch scan request*/
   struct completion hdd_get_batch_scan_req_var;
   /*HDD batch scan lock*/
   struct mutex hdd_batch_scan_lock;
   /*HDD set batch scan request*/
   tSirSetBatchScanReq  hddSetBatchScanReq;
   /*HDD set batch scan response*/
   tSirSetBatchScanRsp  hddSetBatchScanRsp;
   /*HDD stop batch scan indication*/
   tSirStopBatchScanInd hddStopBatchScanInd;
   /*HDD get batch scan request*/
   tSirTriggerBatchScanResultInd  hddTriggerBatchScanResultInd;
   /*Batched scan reponse queue: new batch scan results added at the tail
    and old batch scan results are deleted from head*/
   tHddBatchScanRsp *pBatchScanRsp;
   /*No of scans in batch scan rsp(MSCAN)*/
   v_U32_t numScanList;
   /*isTruncated = 1 batch scan rsp is truncated
     isTruncated = 0 batch scan rsp is complete*/
   v_BOOL_t isTruncated;
   /*Wait for get batch scan response from FW or not*/
   volatile v_BOOL_t hdd_wait_for_get_batch_scan_rsp;
   /*Wait for set batch scan response from FW or not*/
   volatile v_BOOL_t hdd_wait_for_set_batch_scan_rsp;
   /*Previous batch scan ID*/
   v_U32_t prev_batch_id;
   /*Batch scan state*/
   eHDD_BATCH_SCAN_STATE batchScanState;
#endif

#if defined(FEATURE_WLAN_ESE) && defined(FEATURE_WLAN_ESE_UPLOAD)
   tAniTrafStrmMetrics tsmStats;
#endif
   /* Flag to ensure PSB is configured through framework */
   v_U8_t psbChanged;
   v_ULONG_t prev_rx_packets;
   /* UAPSD psb value configured through framework */
   v_U8_t configuredPsb;
   v_BOOL_t is_roc_inprogress;
   v_U32_t maxRateFlags;
#ifdef WLAN_FEATURE_LINK_LAYER_STATS
   v_BOOL_t isLinkLayerStatsSet;
#endif
   /* DSCP to UP QoS Mapping */
   sme_QosWmmUpType hddWmmDscpToUpMap[WLAN_MAX_DSCP+1];
   /* Lock for active sessions while processing deauth/Disassoc */
   spinlock_t lock_for_active_session;
   tSirFwStatsResult  fwStatsRsp;

   /* Time stamp for last completed RoC request */
   v_TIME_t lastRocTs;

   /* work queue to defer the back to back p2p_listen */
   struct delayed_work roc_work;

   /* Time stamp for start RoC request */
   v_TIME_t startRocTs;

   /* Wireless statistics */
   struct iw_statistics iwStats;

   /* Currently used antenna Index*/
   int antennaIndex;
#ifdef DHCP_SERVER_OFFLOAD
   hdd_dhcp_state_t dhcp_status;
#endif /* DHCP_SERVER_OFFLOAD */
#ifdef MDNS_OFFLOAD
    hdd_mdns_state_t mdns_status;
#endif /* MDNS_OFFLOAD */

#ifdef WLAN_FEATURE_TSF
    struct hdd_tsf_ctx_s tsf_cap_ctx;
#endif
    bool con_status;
    bool dad;
};

#define WLAN_HDD_GET_STATION_CTX_PTR(pAdapter) (&(pAdapter)->sessionCtx.station)
#define WLAN_HDD_GET_MONITOR_CTX_PTR(pAdapter) (&(pAdapter)->sessionCtx.monitor)
#define WLAN_HDD_GET_AP_CTX_PTR(pAdapter) (&(pAdapter)->sessionCtx.ap)
#define WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter)  (&(pAdapter)->sessionCtx.station.WextState)
#define WLAN_HDD_GET_CTX(pAdapter) ((hdd_context_t*)pAdapter->pHddCtx)
#define WLAN_HDD_GET_HAL_CTX(pAdapter)  (((hdd_context_t*)(pAdapter->pHddCtx))->hHal)
#define WLAN_HDD_GET_HOSTAP_STATE_PTR(pAdapter) (&(pAdapter)->sessionCtx.ap.HostapdState)
#define WLAN_HDD_GET_CFG_STATE_PTR(pAdapter)  (&(pAdapter)->cfg80211State)
#ifdef FEATURE_WLAN_TDLS
#define WLAN_HDD_IS_TDLS_SUPPORTED_ADAPTER(pAdapter) \
        ((WLAN_HDD_INFRA_STATION == pAdapter->device_mode) ? 1 : 0)
#define WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter) \
        ((WLAN_HDD_IS_TDLS_SUPPORTED_ADAPTER(pAdapter)) ? \
        (tdlsCtx_t*)(pAdapter)->sessionCtx.station.pHddTdlsCtx : NULL)
#endif

typedef struct hdd_adapter_list_node
{
   hdd_list_node_t node;     // MUST be first element
   hdd_adapter_t *pAdapter;
}hdd_adapter_list_node_t;

typedef struct hdd_priv_data_s
{
   tANI_U8 *buf;
   int used_len;
   int total_len;
}hdd_priv_data_t;

typedef struct
{
   vos_timer_t trafficTimer;
   atomic_t    isActiveMode;
   v_U8_t      isInitialized;
   vos_lock_t  trafficLock;
   v_TIME_t    lastFrameTs;
}hdd_traffic_monitor_t;

typedef struct
{
   struct completion completion;
   tANI_U32 magic;
}bcnMissRateContext_t;

typedef struct
{
   v_MACADDR_t  randomMacAddr;
   v_U8_t       isReqDeferred;
   v_U8_t       isEnabled;
   struct mutex macSpoofingLock;
}macAddrSpoof_t;

#define WLAN_WAIT_TIME_LL_STATS 800

#define WLAN_WAIT_TIME_NUD_STATS 800
#define WLAN_NUD_STATS_LEN 800
#define WLAN_NUD_STATS_ARP_PKT_TYPE 1

/* FW memory dump feature
@TODO : Move this code to a separate file later */
#define PROCFS_MEMDUMP_DIR  "debug"
#define PROCFS_MEMDUMP_NAME "fwdump"
#define FW_MEM_DUMP_REQ_ID 1
#define FW_MEM_DUMP_TIMEOUT_MS 800
#define FW_MEM_DUMP_MAGIC 0x3C3A2D44

/**
 * struct hdd_fw_mem_dump_req_ctx - hdd fw mem dump req context
 *
 * @magic : magic for validating cfg80211 requests
 * @status: status for cfg80211 requests
 * @pHDDCtx: ptr to HDD context
 * @req_completion: completion variable for fw mem dump
 */
struct hdd_fw_mem_dump_req_ctx {
   uint32_t magic;
   bool status;
   struct completion req_completion;
};

/**
 * callback type to check fw mem dump request.Called from SVC
 * context and update status in HDD.
 */
typedef void (*hdd_fw_mem_dump_req_cb)(void *context);

void wlan_hdd_fw_mem_dump_cb(void *,tAniFwrDumpRsp *);
int wlan_hdd_fw_mem_dump_req(hdd_context_t * pHddCtx);
void wlan_hdd_fw_mem_dump_req_cb(void *context);
#ifdef WLAN_FEATURE_LINK_LAYER_STATS
/**
 * struct hdd_ll_stats_context - hdd link layer stats context
 *
 * @request_id: userspace-assigned link layer stats request id
 * @request_bitmap: userspace-assigned link layer stats request bitmap
 * @response_event: LL stats request wait event
 */
struct hdd_ll_stats_context {
    uint32_t request_id;
    uint32_t request_bitmap;
    struct completion response_event;
};
#endif /* End of WLAN_FEATURE_LINK_LAYER_STATS */

/**
 * struct hdd_nud_stats_context - hdd NUD stats context
 *
 * @response_event: NUD stats request wait event
 */
struct hdd_nud_stats_context {
    struct completion response_event;
};

#ifdef WLAN_FEATURE_EXTSCAN
/**
 * struct hdd_ext_scan_context - hdd ext scan context
 *
 * @request_id: userspace-assigned ID associated with the request
 * @response_status: Status returned by FW in response to a request
 * @ignore_cached_results: Flag to ignore cached results or not
 * @capability_response: Ext scan capability response data from target
 */

struct hdd_ext_scan_context {
    v_U32_t request_id;
    int response_status;
    bool ignore_cached_results;
    struct completion response_event;
    tSirEXTScanCapabilitiesEvent capability_response;
};
#endif /* End of WLAN_FEATURE_EXTSCAN */

#ifdef WLAN_FEATURE_OFFLOAD_PACKETS
/**
 * struct hdd_offloaded_packets - request id to pattern id mapping
 * @request_id: request id
 * @pattern_id: pattern id
 *
 */
struct hdd_offloaded_packets
{
    uint32_t request_id;
    uint8_t  pattern_id;
};

/**
 * struct hdd_offloaded_packets_ctx - offloaded packets context
 * @op_table: request id to pattern id table
 * @op_lock: mutex lock
 */
struct hdd_offloaded_packets_ctx
{
    struct hdd_offloaded_packets op_table[MAXNUM_PERIODIC_TX_PTRNS];
    struct mutex op_lock;
};
#endif

/** Adapter stucture definition */

struct hdd_cache_channel_info {
	int channel_num;
	eNVChannelEnabledType reg_status;
	int wiphy_status;
};

struct hdd_cache_channels {
	int num_channels;
	struct hdd_cache_channel_info *channel_info;
};

struct hdd_context_s
{
   /** Global VOS context  */
   v_CONTEXT_t pvosContext;

   /** HAL handle...*/
   tHalHandle hHal;

   struct wiphy *wiphy ;
   //TODO Remove this from here.

   hdd_list_t hddAdapters; //List of adapters
   /* One per STA: 1 for RX_BCMC_STA_ID and 1 for SAP_SELF_STA_ID*/
   hdd_adapter_t *sta_to_adapter[WLAN_MAX_STA_COUNT + 3]; //One per sta. For quick reference.

   /** Pointer for firmware image data */
   const struct firmware *fw;
   
   /** Pointer for configuration data */
   const struct firmware *cfg;
   
   /** Pointer for nv data */
   const struct firmware *nv;
   
   /** Pointer to the parent device */
   struct device *parent_dev;

   pid_t  pid_sdio_claimed;
   atomic_t sdio_claim_count;

   /** Config values read from qcom_cfg.ini file */ 
   hdd_config_t *cfg_ini;
   wlan_hdd_ftm_status_t ftm; 
   /** completion variable for full power callback */
   struct completion full_pwr_comp_var;
   /** completion variable for Request BMPS callback */
   struct completion req_bmps_comp_var;
   
   /** completion variable for standby callback */
   struct completion standby_comp_var;
   
   /* Completion  variable to indicate Rx Thread Suspended */
   struct completion rx_sus_event_var;

   /* Completion  variable to indicate Tx Thread Suspended */
   struct completion tx_sus_event_var;

   /* Completion  variable to indicate Mc Thread Suspended */
   struct completion mc_sus_event_var;

   /* Completion variable for regulatory hint  */
#ifdef CONFIG_ENABLE_LINUX_REG
   struct completion linux_reg_req;
#else
   struct completion driver_crda_req;
#endif
   /* Completion variable to indicate updation of channel */
   struct completion wiphy_channel_update_event;

   v_BOOL_t nEnableStrictRegulatoryForFCC;

   v_BOOL_t isWlanSuspended;

   v_BOOL_t isTxThreadSuspended;

   v_BOOL_t isMcThreadSuspended;

   v_BOOL_t isRxThreadSuspended;

   volatile v_BOOL_t isLogpInProgress;

   struct completion ssr_comp_var;

   v_U8_t isLoadUnloadInProgress;
   
   /**Track whether driver has been suspended.*/
   hdd_ps_state_t hdd_ps_state;
   
   /* Track whether Mcast/Bcast Filter is enabled.*/
   v_BOOL_t hdd_mcastbcast_filter_set;

   /* Track whether ignore DTIM is enabled*/
   v_BOOL_t hdd_ignore_dtim_enabled;
   v_U32_t hdd_actual_ignore_DTIM_value;
   v_U32_t hdd_actual_LI_value; 

   
   v_BOOL_t hdd_wlan_suspended;
   bool rx_wow_dump;

   uint8_t bad_sta[HDD_MAX_STA_COUNT];
   
   spinlock_t filter_lock;
   
   /* Lock to avoid race condtion during start/stop bss*/
   struct mutex sap_lock;

   struct work_struct  sap_start_work;
   bool is_sap_restart_required;
   bool is_ch_avoid_in_progress;
   vos_spin_lock_t sap_update_info_lock;

   /* Lock to avoid race condtion between ROC timeout and
      cancel callbacks*/
   struct mutex roc_lock;
   /** ptt Process ID*/
   v_SINT_t ptt_pid;
#ifdef WLAN_KD_READY_NOTIFIER
   v_BOOL_t kd_nl_init;
#endif /* WLAN_KD_READY_NOTIFIER */

#ifdef FEATURE_OEM_DATA_SUPPORT
   /* OEM App registered or not */
   v_BOOL_t oem_app_registered;

   /* OEM App Process ID */
   v_SINT_t oem_pid;
#endif

   v_U8_t change_iface;

   /** Concurrency Parameters*/
   tVOS_CONCURRENCY_MODE concurrency_mode;

   v_U8_t no_of_open_sessions[VOS_MAX_NO_OF_MODE];
   v_U8_t no_of_active_sessions[VOS_MAX_NO_OF_MODE];

   hdd_chip_reset_stats_t hddChipResetStats;
   /* Number of times riva restarted */
   v_U32_t  hddRivaResetStats;
   
   /* Can we allow AMP connection right now*/
   v_BOOL_t isAmpAllowed;
   
   /** P2P Device MAC Address for the adapter  */
   v_MACADDR_t p2pDeviceAddress;

   /* Thermal mitigation information */
   hdd_thermal_mitigation_info_t tmInfo;

#ifdef WLAN_FEATURE_HOLD_RX_WAKELOCK
    vos_wake_lock_t rx_wake_lock;
#endif

   /* 
    * Framework initiated driver restarting 
    *    hdd_reload_timer   : Restart retry timer
    *    isRestartInProgress: Restart in progress
    *    hdd_restart_retries: Restart retries
    *
    */
   vos_timer_t hdd_restart_timer;
   atomic_t isRestartInProgress;
   u_int8_t hdd_restart_retries;
   
   hdd_scaninfo_t scan_info;

   /*is_dyanmic_channel_range_set is set to 1 when Softap_set_channel_range
        is invoked*/
   v_BOOL_t is_dynamic_channel_range_set;
   vos_wake_lock_t sap_wake_lock;
#ifdef FEATURE_WLAN_TDLS
    eTDLSSupportMode tdls_mode;
    eTDLSSupportMode tdls_mode_last;
    tdlsConnInfo_t tdlsConnInfo[HDD_MAX_NUM_TDLS_STA];
    /* TDLS peer connected count */
    tANI_U16 connected_peer_count;
    scan_context_t scan_ctxt;
    /* Lock to avoid race condition during TDLS operations*/
    struct mutex tdls_lock;
#endif

    hdd_traffic_monitor_t traffic_monitor;

    /* MC/BC Filter state variable
     * This always contains the value that is currently
     * configured
     * */
    v_U8_t configuredMcastBcastFilter;

    v_U8_t sus_res_mcastbcast_filter;

    v_BOOL_t sus_res_mcastbcast_filter_valid;

    v_BOOL_t mc_list_cfg_in_fwr;

    /* debugfs entry */
    struct dentry *debugfs_phy;

    /* Use below lock to protect access to isSchedScanUpdatePending
     * since it will be accessed in two different contexts.
     */
    spinlock_t schedScan_lock;

    // Flag keeps track of wiphy suspend/resume
    v_BOOL_t isWiphySuspended;

    // Indicates about pending sched_scan results
    v_BOOL_t isSchedScanUpdatePending;
    /*
    * TX_rx_pkt_count_timer
    */
    vos_timer_t    tx_rx_trafficTmr;
    v_U8_t         drvr_miracast;
    bool           is_vowifi_enabled;
    v_U8_t         issplitscan_enabled;
    v_U8_t         isTdlsScanCoexistence;

    /* VHT80 allowed*/
    v_BOOL_t isVHT80Allowed;

#ifdef FEATURE_WLAN_CH_AVOID
   v_U16_t unsafeChannelCount;
   v_U16_t unsafeChannelList[NUM_20MHZ_RF_CHANNELS];
   v_U16_t safeChannelList[NUM_20MHZ_RF_CHANNELS];
#endif /* FEATURE_WLAN_CH_AVOID */

    v_BOOL_t btCoexModeSet;
    v_BOOL_t isPnoEnable;
    macAddrSpoof_t spoofMacAddr;
    /* flag to decide if driver need to scan DFS channels or not */
    v_BOOL_t  disable_dfs_flag;

#ifdef WLAN_NS_OFFLOAD
    /*
     *  IPv6 notifier callback for handling NS offload on change in IP
     */
    struct notifier_block ipv6_notifier;
#endif

    /* IPv4 notifier callback for handling ARP offload on change in
     * IP
     */
    struct notifier_block ipv4_notifier;
    //Lock to avoid race condition during wmm operations
    struct mutex   wmmLock;
    v_BOOL_t mgmt_frame_logging;
    v_BOOL_t isSetBandByNL;
    v_U8_t fw_Version[SIR_VERSION_STRING_LEN];
#ifdef WLAN_FEATURE_LINK_LAYER_STATS
    struct hdd_ll_stats_context ll_stats_context;
#endif /* End of WLAN_FEATURE_LINK_LAYER_STATS */
    struct hdd_nud_stats_context nud_stats_context;

#ifdef WLAN_FEATURE_EXTSCAN
    struct hdd_ext_scan_context ext_scan_context;
#endif /* WLAN_FEATURE_EXTSCAN */

    /* Time since boot up to WiFi turn ON (in micro seconds) */
    v_U64_t wifi_turn_on_time_since_boot;
    unsigned long  last_suspend_success;
    v_U32_t  continuous_suspend_fail_cnt;

#ifdef WLAN_FEATURE_OFFLOAD_PACKETS
    struct hdd_offloaded_packets_ctx op_ctx;
#endif

   /* work queue to defer mac spoofing */
   struct delayed_work spoof_mac_addr_work;

    vos_timer_t    delack_timer;
    struct mutex   cur_rx_level_lock;
    v_U32_t        cur_rx_level;
    v_U64_t        prev_rx;
    v_ULONG_t      mode;

    /* bit map to set/reset TDLS by different sources */
    unsigned long tdls_source_bitmap;

    /* tdls source timer to enable/disable TDLS on p2p listen */
    vos_timer_t tdls_source_timer;

    v_U64_t extscan_start_time_since_boot;
    v_U8_t last_scan_reject_session_id;
    scan_reject_states last_scan_reject_reason;
    v_TIME_t last_scan_reject_timestamp;
    v_U8_t scan_reject_cnt;
    bool is_ap_mode_wow_supported;
    bool is_fatal_event_log_sup;

    /* work queue ecsa channel change on SAP */
   struct delayed_work ecsa_chan_change_work;

    /* used to enable roaming back after monitor mode stop */
    v_BOOL_t roaming_ini_original;

    uint32_t track_arp_ip;

    struct hdd_cache_channels *original_channels;
    struct mutex cache_channel_lock;
    bool force_rsne_override;
};

/* Use to notify the TDLS or BTCOEX is mode enable */
typedef enum
{
   WLAN_TDLS_MODE,
   WLAN_BTCOEX_MODE,
} WLAN_MODE_TYPE;

#define WLAN_HDD_IS_LOAD_IN_PROGRESS(pHddCtx)  \
            (pHddCtx->isLoadUnloadInProgress & WLAN_HDD_LOAD_IN_PROGRESS)

#define WLAN_HDD_IS_UNLOAD_IN_PROGRESS(pHddCtx)  \
            (pHddCtx->isLoadUnloadInProgress & WLAN_HDD_UNLOAD_IN_PROGRESS)

#define WLAN_HDD_IS_LOAD_UNLOAD_IN_PROGRESS(pHddCtx)  \
            (pHddCtx->isLoadUnloadInProgress &    \
              (WLAN_HDD_LOAD_IN_PROGRESS | WLAN_HDD_UNLOAD_IN_PROGRESS))

/* Logging of both Mgmt and Data pkts are supported by HW in both TX & RX.
 * But only support for logging of Mgmt pkts is supported from host driver.
 */
typedef enum
{
   WLAN_FRAME_LOGGING_FRAMETYPE_DATA,
   WLAN_FRAME_LOGGING_FRAMETYPE_MGMT,
} WLAN_FRAME_LOGGING_FRAMETYPE;

// Only first 64/128 bytes of Mgmt/Data pkts can be logged.
typedef enum
{
   WLAN_MGMT_LOGGING_FRAMESIZE_64BYTES = 64,
   WLAN_MGMT_LOGGING_FRAMESIZE_128BYTES = 128,
} WLAN_MGMT_LOGGING_FRAMESIZE;

/* In Circular Mode HW buffer will be filled in circular fashion with buffer
 * overwritten when buffer memory is full and new pkt is to be logged.
 * Freeze mode will stop filling the buffer memory when buffer is full and thus
 * no more pkts will logged unless buffer memory is freed.
 */
typedef enum
{
   WLAN_FRAME_LOGGING_BUFFERMODE_CIRCULAR,
   WLAN_FRAME_LOGGING_BUFFERMODE_FREEZE,
} WLAN_FRAME_LOGGING_BUFFERMODE;

/* WLAN_FRAME_LOG_EN - Enables frame logging in HW
 * WLAN_BMUHW_TRACE_LOG_EN - 8K/16K memory buffer will be used for logging
 * WLAN_QXDM_LOG_EN - FW QXDM logs will be routed through host driver
 * WLAN_DPU_TXP_LOG_EN - pkts will be logged at both DPU and TXP HW block.
 */
typedef enum
{
   WLAN_FRAME_LOG_EN = 1<<0,
   WLAN_BMUHW_TRACE_LOG_EN = 1<<1,
   WLAN_QXDM_LOG_EN = 1<<2,
   WLAN_DPU_TXP_LOG_EN = 1<<3,
   WLAN_FW_MEM_DUMP_EN = 1<<6,
} WLAN_ENABLE_HW_FW_LOG_TYPE;

#ifdef MDNS_OFFLOAD
/* Offload struct */
struct hdd_mdns_resp_info {
    uint8_t num_entries;
    uint8_t *data;
    uint16_t *offset;
};

struct hdd_mdns_resp_matched {
    uint8_t num_matched;
    uint8_t type;
};
#endif /* MDNS_OFFLOAD */

/*--------------------------------------------------------------------------- 
  Function declarations and documenation
  -------------------------------------------------------------------------*/
const char * hdd_device_modetoString(v_U8_t device_mode);
VOS_STATUS hdd_get_front_adapter( hdd_context_t *pHddCtx,
                                  hdd_adapter_list_node_t** ppAdapterNode);

VOS_STATUS hdd_get_next_adapter( hdd_context_t *pHddCtx,
                                 hdd_adapter_list_node_t* pAdapterNode,
                                 hdd_adapter_list_node_t** pNextAdapterNode);

VOS_STATUS hdd_remove_adapter( hdd_context_t *pHddCtx,
                               hdd_adapter_list_node_t* pAdapterNode);

VOS_STATUS hdd_remove_front_adapter( hdd_context_t *pHddCtx,
                                     hdd_adapter_list_node_t** ppAdapterNode);

VOS_STATUS hdd_add_adapter_back( hdd_context_t *pHddCtx,
                                 hdd_adapter_list_node_t* pAdapterNode);

VOS_STATUS hdd_add_adapter_front( hdd_context_t *pHddCtx,
                                  hdd_adapter_list_node_t* pAdapterNode);

hdd_adapter_t* hdd_open_adapter( hdd_context_t *pHddCtx, tANI_U8 session_type,
                                 const char* name, tSirMacAddr macAddr,
                                 tANI_U8 rtnl_held );
VOS_STATUS hdd_close_adapter( hdd_context_t *pHddCtx, hdd_adapter_t *pAdapter, tANI_U8 rtnl_held );
VOS_STATUS hdd_close_all_adapters( hdd_context_t *pHddCtx );
VOS_STATUS hdd_stop_all_adapters( hdd_context_t *pHddCtx );
VOS_STATUS hdd_reset_all_adapters( hdd_context_t *pHddCtx );
VOS_STATUS hdd_start_all_adapters( hdd_context_t *pHddCtx );
VOS_STATUS hdd_reconnect_all_adapters( hdd_context_t *pHddCtx );
struct cfg80211_bss* hdd_get_bss_entry(struct wiphy *wiphy,
      struct ieee80211_channel *channel,
      const u8 *bssid,
      const u8 *ssid, size_t ssid_len);
void hdd_connect_result(struct net_device *dev, const u8 *bssid,
   tCsrRoamInfo *roam_info, const u8 *req_ie,
   size_t req_ie_len, const u8 * resp_ie,
   size_t resp_ie_len, u16 status, gfp_t gfp);
void hdd_dump_concurrency_info(hdd_context_t *pHddCtx);
hdd_adapter_t * hdd_get_adapter_by_name( hdd_context_t *pHddCtx, tANI_U8 *name );
hdd_adapter_t * hdd_get_adapter_by_macaddr( hdd_context_t *pHddCtx, tSirMacAddr macAddr );
hdd_adapter_t *hdd_get_adapter_by_sme_session_id( hdd_context_t *pHddCtx,
                                        tANI_U32 sme_session_id );
hdd_adapter_t * hdd_get_mon_adapter( hdd_context_t *pHddCtx );
VOS_STATUS hdd_init_station_mode( hdd_adapter_t *pAdapter );
hdd_adapter_t * hdd_get_adapter( hdd_context_t *pHddCtx, device_mode_t mode );
void hdd_deinit_adapter( hdd_context_t *pHddCtx, hdd_adapter_t *pAdapter, tANI_U8 rtnl_held );
VOS_STATUS hdd_stop_adapter( hdd_context_t *pHddCtx, hdd_adapter_t *pAdapter,
                             const v_BOOL_t bCloseSession );
void hdd_set_station_ops( struct net_device *pWlanDev );
tANI_U8* wlan_hdd_get_intf_addr(hdd_context_t* pHddCtx);
void wlan_hdd_release_intf_addr(hdd_context_t* pHddCtx, tANI_U8* releaseAddr);
v_U8_t hdd_get_operating_channel( hdd_context_t *pHddCtx, device_mode_t mode );
void wlan_hdd_mon_set_typesubtype( hdd_mon_ctx_t *pMonCtx,int type);
void hdd_mon_post_msg_cb(void *context);
VOS_STATUS wlan_hdd_mon_postMsg(void *cookie, hdd_mon_ctx_t *pMonCtx,
                                void* callback);
void hdd_set_conparam ( v_UINT_t newParam );
tVOS_CON_MODE hdd_get_conparam( void );

void wlan_hdd_enable_deepsleep(v_VOID_t * pVosContext);
v_BOOL_t wlan_hdd_is_GO_power_collapse_allowed(hdd_context_t* pHddCtx);
v_BOOL_t hdd_is_apps_power_collapse_allowed(hdd_context_t* pHddCtx);
v_BOOL_t hdd_is_suspend_notify_allowed(hdd_context_t* pHddCtx);
tSirAbortScanStatus hdd_abort_mac_scan(hdd_context_t* pHddCtx,
                                       tANI_U8 sessionId,
                                       eCsrAbortReason reason);
void hdd_processSpoofMacAddrRequest(struct work_struct *work);
void hdd_cleanup_actionframe( hdd_context_t *pHddCtx, hdd_adapter_t *pAdapter );

void crda_regulatory_entry_default(v_U8_t *countryCode, int domain_id);
void wlan_hdd_set_concurrency_mode(hdd_context_t *pHddCtx,
                                   tVOS_CON_MODE mode);
void wlan_hdd_clear_concurrency_mode(hdd_context_t *pHddCtx,
                                     tVOS_CON_MODE mode);
void wlan_hdd_incr_active_session(hdd_context_t *pHddCtx,
                                  tVOS_CON_MODE mode);
void wlan_hdd_decr_active_session(hdd_context_t *pHddCtx,
                                  tVOS_CON_MODE mode);
void wlan_hdd_reset_prob_rspies(hdd_adapter_t* pHostapdAdapter);
void hdd_prevent_suspend(uint32_t reason);
void hdd_allow_suspend(uint32_t reason);
void hdd_prevent_suspend_timeout(v_U32_t timeout, uint32_t reason);
bool hdd_is_ssr_required(void);
void hdd_set_ssr_required(e_hdd_ssr_required value);
void hdd_set_pre_close(hdd_context_t *pHddCtx);

VOS_STATUS hdd_enable_bmps_imps(hdd_context_t *pHddCtx);
VOS_STATUS hdd_disable_bmps_imps(hdd_context_t *pHddCtx, tANI_U8 session_type);

void wlan_hdd_cfg80211_update_reg_info(struct wiphy *wiphy);
VOS_STATUS wlan_hdd_restart_driver(hdd_context_t *pHddCtx);
void hdd_exchange_version_and_caps(hdd_context_t *pHddCtx);
void hdd_set_pwrparams(hdd_context_t *pHddCtx);
void hdd_reset_pwrparams(hdd_context_t *pHddCtx);
int wlan_hdd_validate_context(hdd_context_t *pHddCtx);
v_BOOL_t hdd_is_valid_mac_address(const tANI_U8* pMacAddr);
VOS_STATUS hdd_issta_p2p_clientconnected(hdd_context_t *pHddCtx);
VOS_STATUS hdd_is_any_session_connected(hdd_context_t *pHddCtx);
void hdd_ipv4_notifier_work_queue(struct work_struct *work);
v_BOOL_t hdd_isConnectionInProgress(hdd_context_t *pHddCtx, v_U8_t *session_id,
                                    scan_reject_states *reason);
void hdd_set_ibss_ops(hdd_adapter_t *pAdapter);
#ifdef WLAN_FEATURE_PACKET_FILTERING
int wlan_hdd_setIPv6Filter(hdd_context_t *pHddCtx, tANI_U8 filterType, tANI_U8 sessionId);
#endif

#ifdef WLAN_NS_OFFLOAD
void hdd_ipv6_notifier_work_queue(struct work_struct *work);
#endif

#ifdef WLAN_FEATURE_RMC
v_MACADDR_t* hdd_wlan_get_ibss_mac_addr_from_staid(hdd_adapter_t *pAdapter, v_U8_t staIdx);
#endif /* WLAN_FEATURE_RMC */

#ifdef CONFIG_ENABLE_LINUX_REG
void hdd_checkandupdate_phymode( hdd_context_t *pHddCtx);
#endif
int hdd_wmmps_helper(hdd_adapter_t *pAdapter, tANI_U8 *ptr);

/*
 * start/stop bandwidth compute timer, Based on which tcp delack
 * value will be configured
 */
void hdd_manage_delack_timer(hdd_context_t *pHddCtx);

void hdd_update_prev_rx_packet_count(hdd_context_t *pHddCtx);
void hdd_start_delack_timer(hdd_context_t *pHddCtx);
void hdd_set_default_stop_delack_timer(hdd_context_t *pHddCtx);
v_U8_t hdd_get_total_sessions(hdd_context_t *pHddCtx);
void hdd_set_delack_value(hdd_context_t *pHddCtx, v_U32_t next_rx_level);

/*
 *  Calculate the packet channel bandwidth and send notification to cnss demon
 */
void hdd_request_tcp_delack(hdd_context_t *pHddCtx,
                                               uint64_t rx_packets);
void hdd_tcp_delack_compute_function(void *priv);

#ifdef FEATURE_WLAN_BATCH_SCAN
/**---------------------------------------------------------------------------

  \brief hdd_handle_batch_scan_ioctl () - This function handles WLS_BATCHING
     IOCTLs from user space. Following BATCH SCAN DEV IOCTs are handled:
     WLS_BATCHING VERSION
     WLS_BATCHING SET
     WLS_BATCHING GET
     WLS_BATCHING STOP

  \param  - pAdapter Pointer to HDD adapter
  \param  - pPrivdata Pointer to priv_data
  \param  - command Pointer to command

  \return - 0 for success -EFAULT for failure

  --------------------------------------------------------------------------*/

int hdd_handle_batch_scan_ioctl
(
    hdd_adapter_t *pAdapter,
    hdd_priv_data_t *pPrivdata,
    tANI_U8 *command
);

/**---------------------------------------------------------------------------

  \brief hdd_deinit_batch_scan () - This function cleans up batch scan data
   structures

  \param  - pAdapter Pointer to HDD adapter

  \return - None

  --------------------------------------------------------------------------*/

void hdd_deinit_batch_scan(hdd_adapter_t *pAdapter);

#endif /*End of FEATURE_WLAN_BATCH_SCAN*/
void wlan_hdd_send_svc_nlink_msg(int type, void *data, int len);

boolean hdd_is_5g_supported(hdd_context_t * pHddCtx);

int wlan_hdd_scan_abort(hdd_adapter_t *pAdapter);

#ifdef CONFIG_ENABLE_LINUX_REG
VOS_STATUS wlan_hdd_init_channels_for_cc(hdd_context_t *pHddCtx,  driver_load_type init  );
#endif

VOS_STATUS wlan_hdd_cancel_remain_on_channel(hdd_context_t *pHddCtx);
hdd_remain_on_chan_ctx_t *hdd_get_remain_on_channel_ctx(hdd_context_t *pHddCtx);

VOS_STATUS wlan_hdd_handle_dfs_chan_scan(hdd_context_t *pHddCtx,
                                   tANI_U8 dfsScanMode);

v_U8_t hdd_is_fw_logging_enabled(void);
v_U8_t hdd_is_fw_ev_logging_enabled(void);

#define HDD_STA_ID_HASH_MULTIPLIER 2

struct hdd_align_mac_addr_t {
    uint16 bytes_ab;
    uint16 bytes_cd;
    uint16 bytes_ef;
};

typedef struct hdd_staid_hash_node
{
    hdd_list_node_t node;
    v_U8_t sta_id;
    v_MACADDR_t mac_addr;
}hdd_staid_hash_node_t;

/* sta_id hash related APIs */
VOS_STATUS hdd_sta_id_hash_attach(hdd_adapter_t *pAdapter);
VOS_STATUS hdd_sta_id_hash_detach(hdd_adapter_t *pAdapter);
int hdd_sta_id_hash_calculate_index(hdd_adapter_t *pAdapter,
                               v_MACADDR_t *mac_addr_in);
VOS_STATUS hdd_sta_id_hash_add_entry(hdd_adapter_t *pAdapter,
                                    v_U8_t sta_id, v_MACADDR_t *mac_addr);
VOS_STATUS hdd_sta_id_hash_remove_entry(hdd_adapter_t *pAdapter,
                                       v_U8_t sta_id, v_MACADDR_t *mac_addr);
int hdd_sta_id_find_from_mac_addr(hdd_adapter_t *pAdapter,
                                  v_MACADDR_t *mac_addr_in);
void hdd_init_frame_logging(hdd_context_t *pHddCtx);

int hdd_enable_disable_ca_event(hdd_context_t *pHddCtx,
                                tANI_U8* command, tANI_U8 cmd_len);
void hdd_indicate_mgmt_frame(tSirSmeMgmtFrameInd *frame_ind);

#ifdef WLAN_FEATURE_LINK_LAYER_STATS
/**
 * hdd_init_ll_stats_ctx() - initialize link layer stats context
 * @hdd_ctx: Pointer to hdd context
 *
 * Return: none
 */
static inline void hdd_init_ll_stats_ctx(hdd_context_t *hdd_ctx)
{
    init_completion(&hdd_ctx->ll_stats_context.response_event);
    hdd_ctx->ll_stats_context.request_bitmap = 0;

     return;
}
#else
static inline void hdd_init_ll_stat_ctx(void)
{
    return;
}
#endif /* WLAN_FEATURE_LINK_LAYER_STATS */

/**
 * hdd_init_nud_stats_ctx() - initialize NUD stats context
 * @hdd_ctx: Pointer to hdd context
 *
 * Return: none
 */
static inline void hdd_init_nud_stats_ctx(hdd_context_t *hdd_ctx)
{
    init_completion(&hdd_ctx->nud_stats_context.response_event);
    return;
}

void hdd_initialize_adapter_common(hdd_adapter_t *pAdapter);
void hdd_wlan_free_wiphy_channels(struct wiphy *wiphy);
void wlan_hdd_init_deinit_defer_scan_context(scan_context_t *scan_ctx);
int wlan_hdd_copy_defer_scan_context(hdd_context_t *pHddCtx,
                            struct wiphy *wiphy,
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0))
                            struct net_device *dev,
#endif
                            struct cfg80211_scan_request *request);
void wlan_hdd_schedule_defer_scan(struct work_struct *work);
void wlan_hdd_defer_scan_init_work(hdd_context_t *pHddCtx,
                                struct wiphy *wiphy,
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0))
                                struct net_device *dev,
#endif
                                struct cfg80211_scan_request *request,
                                unsigned long delay);
int hdd_reassoc(hdd_adapter_t *pAdapter, const tANI_U8 *bssid,
			const tANI_U8 channel, const handoff_src src);
#ifdef DHCP_SERVER_OFFLOAD
VOS_STATUS wlan_hdd_set_dhcp_server_offload(hdd_adapter_t *hostapd_adapter,
                                            bool re_init);
#endif
#ifdef MDNS_OFFLOAD
bool wlan_hdd_set_mdns_offload(hdd_adapter_t *adapter);
#else
static inline bool wlan_hdd_set_mdns_offload(hdd_adapter_t *adapter)
{
    return FALSE;
}
#endif /* MDNS_OFFLOAD */

void wlan_hdd_start_sap(hdd_adapter_t *ap_adapter);

/**
 * hdd_drv_cmd_validate() - Validates for space in hdd driver command
 * @command: pointer to input data (its a NULL terminated string)
 * @len: length of command name
 *
 * This function checks for space after command name and if no space
 * is found returns error.
 *
 * Return: 0 for success non-zero for failure
 */
int hdd_drv_cmd_validate(tANI_U8 *command, int len);

#ifdef WLAN_FEATURE_TSF
void wlan_hdd_tsf_init(hdd_adapter_t *adapter);
int hdd_capture_tsf(hdd_adapter_t *adapter, uint32_t *buf, int len);
int hdd_indicate_tsf(hdd_adapter_t *adapter, uint32_t *buf, int len);
#else
static inline void
wlan_hdd_tsf_init(hdd_adapter_t *adapter)
{
	return;
}

static inline int
hdd_indicate_tsf(hdd_adapter_t *adapter, uint32_t *buf, int len)
{
	return -ENOTSUPP;
}

static inline int
hdd_capture_tsf(hdd_adapter_t *adapter, uint32_t *buf, int len)
{
	return -ENOTSUPP;
}
#endif
int hdd_dhcp_mdns_offload(hdd_adapter_t *adapter);

/**
 * wlan_hdd_stop_mon() - stop monitor mode
 * @hdd_ctx: pointer to hdd context
 * @wait: used to wait for completion event from firmware
 *
 * Return: 0 - success, negative value -failure
 */
int wlan_hdd_stop_mon(hdd_context_t *hdd_ctx, bool wait);

/**
 * wlan_hdd_check_monitor_state() - check monitor state
 * @hdd_ctx: pointer to hdd context
 *
 * This function is used to check whether capture of monitor mode is ON/OFF
 *
 * Return: true - capture is ON, false - capture is OFF
 */
bool wlan_hdd_check_monitor_state(hdd_context_t *hdd_ctx);

/**
 * hdd_disable_roaming() - disable sme roaming
 * @hdd_ctx: pointer to hdd context
 *
 * This function is used to disable FT roaming, one of the use-case
 * is to disable when monitor mode starts
 *
 * Return: None
 */
void hdd_disable_roaming(hdd_context_t *hdd_ctx);

/**
 * hdd_disable_roaming() - enable sme roaming
 * @hdd_ctx: pointer to hdd context
 *
 * This function is used to enable FT roaming, if roaming is enabled before
 * invocation of hdd_disable_roaming(), one of the use-case is to re-enable
 * roaming when monitor mode stops
 *
 * Return: None
 */
void hdd_restore_roaming(hdd_context_t *hdd_ctx);

int wlan_hdd_check_and_stop_mon(hdd_adapter_t *sta_adapter, bool wait);

/**
 * hdd_wait_for_ecsa_complete() - wait if ecsa is in progress
 * @hdd_ctx: hdd context
 *
 * Return: int.
 */
int hdd_wait_for_ecsa_complete(hdd_context_t *hdd_ctx);

/**
 * hdd_is_sta_sap_scc_allowed_on_dfs_chan() - check if sta+sap scc allowed on
 * dfs chan
 * @hdd_ctx: pointer to hdd context
 *
 * This function used to check if sta+sap scc allowed on DFS channel.
 *
 * Return: None
 */
bool hdd_is_sta_sap_scc_allowed_on_dfs_chan(hdd_context_t *hdd_ctx);

#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 7, 0))
static inline int
hdd_wlan_nla_put_u64(struct sk_buff *skb, int attrtype, u64 value)
{
	return nla_put_u64(skb, attrtype, value);
}
#else
static inline int
hdd_wlan_nla_put_u64(struct sk_buff *skb, int attrtype, u64 value)
{
	return nla_put_u64_64bit(skb, attrtype, value, NL80211_ATTR_PAD);
}
#endif

/*
 * hdd_parse_disable_chn_cmd() - Parse the channel list received
 * in command.
 * @adapter: pointer to hdd adapter
 *
 * @return: 0 on success, Error code on failure
 */
int hdd_parse_disable_chan_cmd(hdd_adapter_t *adapter, tANI_U8 *ptr);

/*
 * hdd_parse_disable_chn_cmd() - get disable channel list
 * in command.
 * @hdd_ctx: hdd context
 * @buf: buffer to hold disable channel list
 * @buf_len: buffer length
 *
 * @return: length of data copied to buf
 */
int hdd_get_disable_ch_list(hdd_context_t *hdd_ctx, tANI_U8 *buf,
                            uint32_t buf_len);


/**
 * hdd_is_cli_iface_up() - check if there is any cli iface up
 * @hdd_ctx: HDD context
 *
 * Return: return true if there is any cli iface(STA/P2P_CLI) is up
 *         else return false
 */
bool hdd_is_cli_iface_up(hdd_context_t *hdd_ctx);

#endif    // end #if !defined( WLAN_HDD_MAIN_H )