/*
 * Merged with mainline ieee80211.h in Aug 2004.  Original ieee802_11
 * remains copyright by the original authors
 *
 * Portions of the merged code are based on Host AP (software wireless
 * LAN access point) driver for Intersil Prism2/2.5/3.
 *
 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
 * <jkmaline@cc.hut.fi>
 * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
 *
 * Adaption to a generic IEEE 802.11 stack by James Ketrenos
 * <jketreno@linux.intel.com>
 * Copyright (c) 2004, Intel Corporation
 *
 * Modified for Realtek's wi-fi cards by Andrea Merello
 * <andreamrl@tiscali.it>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation. See README and COPYING for
 * more details.
 */
#ifndef IEEE80211_H
#define IEEE80211_H
#include <linux/if_ether.h> /* ETH_ALEN */
#include <linux/kernel.h>   /* ARRAY_SIZE */
#include <linux/version.h>
#include <linux/module.h>
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
#include <linux/jiffies.h>
#else
#include <linux/jffs.h>
#include <linux/tqueue.h>
#endif
#include <linux/timer.h>
#include <linux/sched.h>
#include <linux/semaphore.h>

#include <linux/delay.h>
#include <linux/wireless.h>

#include "rtl819x_HT.h"
#include "rtl819x_BA.h"
#include "rtl819x_TS.h"

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
#ifndef bool
typedef enum{false = 0, true} bool;
#endif
#endif

#ifndef IW_MODE_MONITOR
#define IW_MODE_MONITOR 6
#endif

#ifndef IWEVCUSTOM
#define IWEVCUSTOM 0x8c02
#endif

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
#ifndef __bitwise
#define __bitwise __attribute__((bitwise))
#endif
typedef __u16  __le16;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,27))
struct iw_spy_data{
        /* --- Standard spy support --- */
        int                     spy_number;
        u_char                  spy_address[IW_MAX_SPY][ETH_ALEN];
        struct iw_quality       spy_stat[IW_MAX_SPY];
        /* --- Enhanced spy support (event) */
        struct iw_quality       spy_thr_low; /* Low threshold */
        struct iw_quality       spy_thr_high; /* High threshold */
        u_char                  spy_thr_under[IW_MAX_SPY];
};
#endif
#endif

#ifndef container_of
/**
 * container_of - cast a member of a structure out to the containing structure
 *
 * @ptr:        the pointer to the member.
 * @type:       the type of the container struct this is embedded in.
 * @member:     the name of the member within the struct.
 *
 */
#define container_of(ptr, type, member) ({                      \
        const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
        (type *)( (char *)__mptr - offsetof(type,member) );})
#endif

#define KEY_TYPE_NA             0x0
#define KEY_TYPE_WEP40          0x1
#define KEY_TYPE_TKIP           0x2
#define KEY_TYPE_CCMP           0x4
#define KEY_TYPE_WEP104         0x5

/* added for rtl819x tx procedure */
#define MAX_QUEUE_SIZE          0x10

//
// 8190 queue mapping
//
#define BK_QUEUE                               0
#define BE_QUEUE                               1
#define VI_QUEUE                               2
#define VO_QUEUE                               3
#define HCCA_QUEUE                             4
#define TXCMD_QUEUE                            5
#define MGNT_QUEUE                             6
#define HIGH_QUEUE                             7
#define BEACON_QUEUE                           8

#define LOW_QUEUE                              BE_QUEUE
#define NORMAL_QUEUE                           MGNT_QUEUE

//added by amy for ps
#define SWRF_TIMEOUT                            50

//added by amy for LEAP related
#define IE_CISCO_FLAG_POSITION          0x08    // Flag byte: byte 8, numbered from 0.
#define SUPPORT_CKIP_MIC                        0x08    // bit3
#define SUPPORT_CKIP_PK                 0x10    // bit4
/* defined for skb cb field */
/* At most 28 byte */
typedef struct cb_desc {
        /* Tx Desc Related flags (8-9) */
        u8 bLastIniPkt:1;
        u8 bCmdOrInit:1;
        u8 bFirstSeg:1;
        u8 bLastSeg:1;
        u8 bEncrypt:1;
        u8 bTxDisableRateFallBack:1;
        u8 bTxUseDriverAssingedRate:1;
        u8 bHwSec:1; //indicate whether use Hw security. WB

        u8 reserved1;

        /* Tx Firmware Relaged flags (10-11)*/
        u8 bCTSEnable:1;
        u8 bRTSEnable:1;
        u8 bUseShortGI:1;
        u8 bUseShortPreamble:1;
        u8 bTxEnableFwCalcDur:1;
        u8 bAMPDUEnable:1;
        u8 bRTSSTBC:1;
        u8 RTSSC:1;

        u8 bRTSBW:1;
        u8 bPacketBW:1;
        u8 bRTSUseShortPreamble:1;
        u8 bRTSUseShortGI:1;
        u8 bMulticast:1;
        u8 bBroadcast:1;
        //u8 reserved2:2;
        u8 drv_agg_enable:1;
        u8 reserved2:1;

        /* Tx Desc related element(12-19) */
        u8 rata_index;
        u8 queue_index;
        //u8 reserved3;
        //u8 reserved4;
        u16 txbuf_size;
        //u8 reserved5;
        u8 RATRIndex;
        u8 reserved6;
        u8 reserved7;
        u8 reserved8;

        /* Tx firmware related element(20-27) */
        u8 data_rate;
        u8 rts_rate;
        u8 ampdu_factor;
        u8 ampdu_density;
        //u8 reserved9;
        //u8 reserved10;
        //u8 reserved11;
        u8 DrvAggrNum;
        u16 pkt_size;
        u8 reserved12;

        u8 bdhcp;
}cb_desc, *pcb_desc;

/*--------------------------Define -------------------------------------------*/
#define MGN_1M                  0x02
#define MGN_2M                  0x04
#define MGN_5_5M                0x0b
#define MGN_11M                 0x16

#define MGN_6M                  0x0c
#define MGN_9M                  0x12
#define MGN_12M                 0x18
#define MGN_18M                 0x24
#define MGN_24M                 0x30
#define MGN_36M                 0x48
#define MGN_48M                 0x60
#define MGN_54M                 0x6c

#define MGN_MCS0                0x80
#define MGN_MCS1                0x81
#define MGN_MCS2                0x82
#define MGN_MCS3                0x83
#define MGN_MCS4                0x84
#define MGN_MCS5                0x85
#define MGN_MCS6                0x86
#define MGN_MCS7                0x87
#define MGN_MCS8                0x88
#define MGN_MCS9                0x89
#define MGN_MCS10               0x8a
#define MGN_MCS11               0x8b
#define MGN_MCS12               0x8c
#define MGN_MCS13               0x8d
#define MGN_MCS14               0x8e
#define MGN_MCS15               0x8f

//----------------------------------------------------------------------------
//              802.11 Management frame Reason Code field
//----------------------------------------------------------------------------
enum    _ReasonCode{
        unspec_reason   = 0x1,
        auth_not_valid  = 0x2,
        deauth_lv_ss    = 0x3,
        inactivity              = 0x4,
        ap_overload     = 0x5,
        class2_err              = 0x6,
        class3_err              = 0x7,
        disas_lv_ss     = 0x8,
        asoc_not_auth   = 0x9,

        //----MIC_CHECK
        mic_failure     = 0xe,
        //----END MIC_CHECK

        // Reason code defined in 802.11i D10.0 p.28.
        invalid_IE              = 0x0d,
        four_way_tmout  = 0x0f,
        two_way_tmout   = 0x10,
        IE_dismatch     = 0x11,
        invalid_Gcipher = 0x12,
        invalid_Pcipher = 0x13,
        invalid_AKMP    = 0x14,
        unsup_RSNIEver = 0x15,
        invalid_RSNIE   = 0x16,
        auth_802_1x_fail= 0x17,
        ciper_reject            = 0x18,

        // Reason code defined in 7.3.1.7, 802.1e D13.0, p.42. Added by Annie, 2005-11-15.
        QoS_unspec              = 0x20, // 32
        QAP_bandwidth   = 0x21, // 33
        poor_condition  = 0x22, // 34
        no_facility     = 0x23, // 35
                                                        // Where is 36???
        req_declined    = 0x25, // 37
        invalid_param   = 0x26, // 38
        req_not_honored= 0x27,  // 39
        TS_not_created  = 0x2F, // 47
        DL_not_allowed  = 0x30, // 48
        dest_not_exist  = 0x31, // 49
        dest_not_QSTA   = 0x32, // 50
};



#define aSifsTime        (((priv->ieee80211->current_network.mode == IEEE_A)||(priv->ieee80211->current_network.mode == IEEE_N_24G)||(priv->ieee80211->current_network.mode == IEEE_N_5G))? 16 : 10)

#define MGMT_QUEUE_NUM 5

#define IEEE_CMD_SET_WPA_PARAM                  1
#define IEEE_CMD_SET_WPA_IE                     2
#define IEEE_CMD_SET_ENCRYPTION                 3
#define IEEE_CMD_MLME                           4

#define IEEE_PARAM_WPA_ENABLED                  1
#define IEEE_PARAM_TKIP_COUNTERMEASURES         2
#define IEEE_PARAM_DROP_UNENCRYPTED             3
#define IEEE_PARAM_PRIVACY_INVOKED              4
#define IEEE_PARAM_AUTH_ALGS                    5
#define IEEE_PARAM_IEEE_802_1X                  6
//It should consistent with the driver_XXX.c
//   David, 2006.9.26
#define IEEE_PARAM_WPAX_SELECT                  7
//Added for notify the encryption type selection
//   David, 2006.9.26
#define IEEE_PROTO_WPA                          1
#define IEEE_PROTO_RSN                          2
//Added for notify the encryption type selection
//   David, 2006.9.26
#define IEEE_WPAX_USEGROUP                      0
#define IEEE_WPAX_WEP40                         1
#define IEEE_WPAX_TKIP                          2
#define IEEE_WPAX_WRAP                          3
#define IEEE_WPAX_CCMP                          4
#define IEEE_WPAX_WEP104                        5

#define IEEE_KEY_MGMT_IEEE8021X                 1
#define IEEE_KEY_MGMT_PSK                       2

#define IEEE_MLME_STA_DEAUTH                    1
#define IEEE_MLME_STA_DISASSOC                  2


#define IEEE_CRYPT_ERR_UNKNOWN_ALG              2
#define IEEE_CRYPT_ERR_UNKNOWN_ADDR             3
#define IEEE_CRYPT_ERR_CRYPT_INIT_FAILED        4
#define IEEE_CRYPT_ERR_KEY_SET_FAILED           5
#define IEEE_CRYPT_ERR_TX_KEY_SET_FAILED        6
#define IEEE_CRYPT_ERR_CARD_CONF_FAILED         7


#define IEEE_CRYPT_ALG_NAME_LEN                 16

#define MAX_IE_LEN  0xff

// added for kernel conflict
#define ieee80211_crypt_deinit_entries  ieee80211_crypt_deinit_entries_rsl
#define ieee80211_crypt_deinit_handler  ieee80211_crypt_deinit_handler_rsl
#define ieee80211_crypt_delayed_deinit  ieee80211_crypt_delayed_deinit_rsl
#define ieee80211_register_crypto_ops   ieee80211_register_crypto_ops_rsl
#define ieee80211_unregister_crypto_ops ieee80211_unregister_crypto_ops_rsl
#define ieee80211_get_crypto_ops        ieee80211_get_crypto_ops_rsl

#define ieee80211_ccmp_null             ieee80211_ccmp_null_rsl

#define ieee80211_tkip_null             ieee80211_tkip_null_rsl

#define ieee80211_wep_null              ieee80211_wep_null_rsl

#define free_ieee80211                  free_ieee80211_rsl
#define alloc_ieee80211                 alloc_ieee80211_rsl

#define ieee80211_rx                    ieee80211_rx_rsl
#define ieee80211_rx_mgt                ieee80211_rx_mgt_rsl

#define ieee80211_get_beacon            ieee80211_get_beacon_rsl
#define ieee80211_rtl_wake_queue                ieee80211_rtl_wake_queue_rsl
#define ieee80211_rtl_stop_queue                ieee80211_rtl_stop_queue_rsl
#define ieee80211_reset_queue           ieee80211_reset_queue_rsl
#define ieee80211_softmac_stop_protocol ieee80211_softmac_stop_protocol_rsl
#define ieee80211_softmac_start_protocol ieee80211_softmac_start_protocol_rsl
#define ieee80211_is_shortslot          ieee80211_is_shortslot_rsl
#define ieee80211_is_54g                ieee80211_is_54g_rsl
#define ieee80211_wpa_supplicant_ioctl  ieee80211_wpa_supplicant_ioctl_rsl
#define ieee80211_ps_tx_ack             ieee80211_ps_tx_ack_rsl
#define ieee80211_softmac_xmit          ieee80211_softmac_xmit_rsl
#define ieee80211_stop_send_beacons     ieee80211_stop_send_beacons_rsl
#define notify_wx_assoc_event           notify_wx_assoc_event_rsl
#define SendDisassociation              SendDisassociation_rsl
#define ieee80211_disassociate          ieee80211_disassociate_rsl
#define ieee80211_start_send_beacons    ieee80211_start_send_beacons_rsl
#define ieee80211_stop_scan             ieee80211_stop_scan_rsl
#define ieee80211_send_probe_requests   ieee80211_send_probe_requests_rsl
#define ieee80211_softmac_scan_syncro   ieee80211_softmac_scan_syncro_rsl
#define ieee80211_start_scan_syncro     ieee80211_start_scan_syncro_rsl

#define ieee80211_wx_get_essid          ieee80211_wx_get_essid_rsl
#define ieee80211_wx_set_essid          ieee80211_wx_set_essid_rsl
#define ieee80211_wx_set_rate           ieee80211_wx_set_rate_rsl
#define ieee80211_wx_get_rate           ieee80211_wx_get_rate_rsl
#define ieee80211_wx_set_wap            ieee80211_wx_set_wap_rsl
#define ieee80211_wx_get_wap            ieee80211_wx_get_wap_rsl
#define ieee80211_wx_set_mode           ieee80211_wx_set_mode_rsl
#define ieee80211_wx_get_mode           ieee80211_wx_get_mode_rsl
#define ieee80211_wx_set_scan           ieee80211_wx_set_scan_rsl
#define ieee80211_wx_get_freq           ieee80211_wx_get_freq_rsl
#define ieee80211_wx_set_freq           ieee80211_wx_set_freq_rsl
#define ieee80211_wx_set_rawtx          ieee80211_wx_set_rawtx_rsl
#define ieee80211_wx_get_name           ieee80211_wx_get_name_rsl
#define ieee80211_wx_set_power          ieee80211_wx_set_power_rsl
#define ieee80211_wx_get_power          ieee80211_wx_get_power_rsl
#define ieee80211_wlan_frequencies      ieee80211_wlan_frequencies_rsl
#define ieee80211_wx_set_rts            ieee80211_wx_set_rts_rsl
#define ieee80211_wx_get_rts            ieee80211_wx_get_rts_rsl

#define ieee80211_txb_free              ieee80211_txb_free_rsl

#define ieee80211_wx_set_gen_ie         ieee80211_wx_set_gen_ie_rsl
#define ieee80211_wx_get_scan           ieee80211_wx_get_scan_rsl
#define ieee80211_wx_set_encode         ieee80211_wx_set_encode_rsl
#define ieee80211_wx_get_encode         ieee80211_wx_get_encode_rsl
#if WIRELESS_EXT >= 18
#define ieee80211_wx_set_mlme           ieee80211_wx_set_mlme_rsl
#define ieee80211_wx_set_auth           ieee80211_wx_set_auth_rsl
#define ieee80211_wx_set_encode_ext     ieee80211_wx_set_encode_ext_rsl
#define ieee80211_wx_get_encode_ext     ieee80211_wx_get_encode_ext_rsl
#endif


typedef struct ieee_param {
        u32 cmd;
        u8 sta_addr[ETH_ALEN];
        union {
                struct {
                        u8 name;
                        u32 value;
                } wpa_param;
                struct {
                        u32 len;
                        u8 reserved[32];
                        u8 data[0];
                } wpa_ie;
                struct{
                        int command;
                        int reason_code;
                } mlme;
                struct {
                        u8 alg[IEEE_CRYPT_ALG_NAME_LEN];
                        u8 set_tx;
                        u32 err;
                        u8 idx;
                        u8 seq[8]; /* sequence counter (set: RX, get: TX) */
                        u16 key_len;
                        u8 key[0];
                } crypt;
        } u;
}ieee_param;


#if WIRELESS_EXT < 17
#define IW_QUAL_QUAL_INVALID   0x10
#define IW_QUAL_LEVEL_INVALID  0x20
#define IW_QUAL_NOISE_INVALID  0x40
#define IW_QUAL_QUAL_UPDATED   0x1
#define IW_QUAL_LEVEL_UPDATED  0x2
#define IW_QUAL_NOISE_UPDATED  0x4
#endif

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
static inline void tq_init(struct tq_struct * task, void(*func)(void *), void *data)
{
        task->routine = func;
        task->data      = data;
        //task->next = NULL;
        INIT_LIST_HEAD(&task->list);
        task->sync = 0;
}
#endif

// linux under 2.6.9 release may not support it, so modify it for common use
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9))
//#define MSECS(t)      (1000 * ((t) / HZ) + 1000 * ((t) % HZ) / HZ)
#define MSECS(t)        (HZ * ((t) / 1000) + (HZ * ((t) % 1000)) / 1000)
static inline unsigned long msleep_interruptible_rsl(unsigned int msecs)
{
         unsigned long timeout = MSECS(msecs) + 1;

         while (timeout) {
                 set_current_state(TASK_INTERRUPTIBLE);
                 timeout = schedule_timeout(timeout);
         }
         return timeout;
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,31))
static inline void msleep(unsigned int msecs)
{
         unsigned long timeout = MSECS(msecs) + 1;

         while (timeout) {
                 set_current_state(TASK_UNINTERRUPTIBLE);
                 timeout = schedule_timeout(timeout);
         }
}
#endif
#else
#define MSECS(t) msecs_to_jiffies(t)
#define msleep_interruptible_rsl  msleep_interruptible
#endif

#define IEEE80211_DATA_LEN              2304
/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
   6.2.1.1.2.

   The figure in section 7.1.2 suggests a body size of up to 2312
   bytes is allowed, which is a bit confusing, I suspect this
   represents the 2304 bytes of real data, plus a possible 8 bytes of
   WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
#define IEEE80211_1ADDR_LEN 10
#define IEEE80211_2ADDR_LEN 16
#define IEEE80211_3ADDR_LEN 24
#define IEEE80211_4ADDR_LEN 30
#define IEEE80211_FCS_LEN    4
#define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
#define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
#define IEEE80211_MGMT_HDR_LEN 24
#define IEEE80211_DATA_HDR3_LEN 24
#define IEEE80211_DATA_HDR4_LEN 30

#define MIN_FRAG_THRESHOLD     256U
#define MAX_FRAG_THRESHOLD     2346U


/* Frame control field constants */
#define IEEE80211_FCTL_VERS             0x0003
#define IEEE80211_FCTL_FTYPE            0x000c
#define IEEE80211_FCTL_STYPE            0x00f0
#define IEEE80211_FCTL_FRAMETYPE        0x00fc
#define IEEE80211_FCTL_TODS             0x0100
#define IEEE80211_FCTL_FROMDS           0x0200
#define IEEE80211_FCTL_DSTODS           0x0300 //added by david
#define IEEE80211_FCTL_MOREFRAGS        0x0400
#define IEEE80211_FCTL_RETRY            0x0800
#define IEEE80211_FCTL_PM               0x1000
#define IEEE80211_FCTL_MOREDATA         0x2000
#define IEEE80211_FCTL_WEP              0x4000
#define IEEE80211_FCTL_ORDER            0x8000

#define IEEE80211_FTYPE_MGMT            0x0000
#define IEEE80211_FTYPE_CTL             0x0004
#define IEEE80211_FTYPE_DATA            0x0008

/* management */
#define IEEE80211_STYPE_ASSOC_REQ       0x0000
#define IEEE80211_STYPE_ASSOC_RESP      0x0010
#define IEEE80211_STYPE_REASSOC_REQ     0x0020
#define IEEE80211_STYPE_REASSOC_RESP    0x0030
#define IEEE80211_STYPE_PROBE_REQ       0x0040
#define IEEE80211_STYPE_PROBE_RESP      0x0050
#define IEEE80211_STYPE_BEACON          0x0080
#define IEEE80211_STYPE_ATIM            0x0090
#define IEEE80211_STYPE_DISASSOC        0x00A0
#define IEEE80211_STYPE_AUTH            0x00B0
#define IEEE80211_STYPE_DEAUTH          0x00C0
#define IEEE80211_STYPE_MANAGE_ACT      0x00D0

/* control */
#define IEEE80211_STYPE_PSPOLL          0x00A0
#define IEEE80211_STYPE_RTS             0x00B0
#define IEEE80211_STYPE_CTS             0x00C0
#define IEEE80211_STYPE_ACK             0x00D0
#define IEEE80211_STYPE_CFEND           0x00E0
#define IEEE80211_STYPE_CFENDACK        0x00F0
#define IEEE80211_STYPE_BLOCKACK   0x0094

/* data */
#define IEEE80211_STYPE_DATA            0x0000
#define IEEE80211_STYPE_DATA_CFACK      0x0010
#define IEEE80211_STYPE_DATA_CFPOLL     0x0020
#define IEEE80211_STYPE_DATA_CFACKPOLL  0x0030
#define IEEE80211_STYPE_NULLFUNC        0x0040
#define IEEE80211_STYPE_CFACK           0x0050
#define IEEE80211_STYPE_CFPOLL          0x0060
#define IEEE80211_STYPE_CFACKPOLL       0x0070
#define IEEE80211_STYPE_QOS_DATA        0x0080 //added for WMM 2006/8/2
#define IEEE80211_STYPE_QOS_NULL        0x00C0

#define IEEE80211_SCTL_FRAG             0x000F
#define IEEE80211_SCTL_SEQ              0xFFF0

/* QOS control */
#define IEEE80211_QCTL_TID              0x000F

#define FC_QOS_BIT                                      BIT7
#define IsDataFrame(pdu)                        ( ((pdu[0] & 0x0C)==0x08) ? true : false )
#define IsLegacyDataFrame(pdu)  (IsDataFrame(pdu) && (!(pdu[0]&FC_QOS_BIT)) )
//added by wb. Is this right?
#define IsQoSDataFrame(pframe)  ((*(u16*)pframe&(IEEE80211_STYPE_QOS_DATA|IEEE80211_FTYPE_DATA)) == (IEEE80211_STYPE_QOS_DATA|IEEE80211_FTYPE_DATA))
#define Frame_Order(pframe)     (*(u16*)pframe&IEEE80211_FCTL_ORDER)
#define SN_LESS(a, b)           (((a-b)&0x800)!=0)
#define SN_EQUAL(a, b)  (a == b)
#define MAX_DEV_ADDR_SIZE 8
typedef enum _ACT_CATEGORY{
        ACT_CAT_QOS = 1,
        ACT_CAT_DLS = 2,
        ACT_CAT_BA  = 3,
        ACT_CAT_HT  = 7,
        ACT_CAT_WMM = 17,
} ACT_CATEGORY, *PACT_CATEGORY;

typedef enum _TS_ACTION{
        ACT_ADDTSREQ = 0,
        ACT_ADDTSRSP = 1,
        ACT_DELTS    = 2,
        ACT_SCHEDULE = 3,
} TS_ACTION, *PTS_ACTION;

typedef enum _BA_ACTION{
        ACT_ADDBAREQ = 0,
        ACT_ADDBARSP = 1,
        ACT_DELBA    = 2,
} BA_ACTION, *PBA_ACTION;

typedef enum _InitialGainOpType{
        IG_Backup=0,
        IG_Restore,
        IG_Max
}InitialGainOpType;

/* debug macros */
#define CONFIG_IEEE80211_DEBUG
#ifdef CONFIG_IEEE80211_DEBUG
extern u32 ieee80211_debug_level;
#define IEEE80211_DEBUG(level, fmt, args...) \
do { if (ieee80211_debug_level & (level)) \
  printk(KERN_DEBUG "ieee80211: " fmt, ## args); } while (0)
//wb added to debug out data buf
//if you want print DATA buffer related BA, please set ieee80211_debug_level to DATA|BA
#define IEEE80211_DEBUG_DATA(level, data, datalen)      \
        do{ if ((ieee80211_debug_level & (level)) == (level))   \
                {       \
                        int i;                                  \
                        u8* pdata = (u8*) data;                 \
                        printk(KERN_DEBUG "ieee80211: %s()\n", __FUNCTION__);   \
                        for(i=0; i<(int)(datalen); i++)                 \
                        {                                               \
                                printk("%2x ", pdata[i]);               \
                                if ((i+1)%16 == 0) printk("\n");        \
                        }                               \
                        printk("\n");                   \
                }                                       \
        } while (0)
#else
#define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
#define IEEE80211_DEBUG_DATA(level, data, datalen) do {} while(0)
#endif  /* CONFIG_IEEE80211_DEBUG */

/* debug macros not dependent on CONFIG_IEEE80211_DEBUG */

/*
 * To use the debug system;
 *
 * If you are defining a new debug classification, simply add it to the #define
 * list here in the form of:
 *
 * #define IEEE80211_DL_xxxx VALUE
 *
 * shifting value to the left one bit from the previous entry.  xxxx should be
 * the name of the classification (for example, WEP)
 *
 * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your
 * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want
 * to send output to that classification.
 *
 * To add your debug level to the list of levels seen when you perform
 *
 * % cat /proc/net/ipw/debug_level
 *
 * you simply need to add your entry to the ipw_debug_levels array.
 *
 * If you do not see debug_level in /proc/net/ipw then you do not have
 * CONFIG_IEEE80211_DEBUG defined in your kernel configuration
 *
 */

#define IEEE80211_DL_INFO          (1<<0)
#define IEEE80211_DL_WX            (1<<1)
#define IEEE80211_DL_SCAN          (1<<2)
#define IEEE80211_DL_STATE         (1<<3)
#define IEEE80211_DL_MGMT          (1<<4)
#define IEEE80211_DL_FRAG          (1<<5)
#define IEEE80211_DL_EAP           (1<<6)
#define IEEE80211_DL_DROP          (1<<7)

#define IEEE80211_DL_TX            (1<<8)
#define IEEE80211_DL_RX            (1<<9)

#define IEEE80211_DL_HT            (1<<10)  //HT
#define IEEE80211_DL_BA            (1<<11)  //ba
#define IEEE80211_DL_TS            (1<<12)  //TS
#define IEEE80211_DL_QOS           (1<<13)
#define IEEE80211_DL_REORDER       (1<<14)
#define IEEE80211_DL_IOT           (1<<15)
#define IEEE80211_DL_IPS           (1<<16)
#define IEEE80211_DL_TRACE         (1<<29)  //trace function, need to user net_ratelimit() together in order not to print too much to the screen
#define IEEE80211_DL_DATA          (1<<30)   //use this flag to control whether print data buf out.
#define IEEE80211_DL_ERR           (1<<31)   //always open
#define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
#define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
#define IEEE80211_DEBUG_INFO(f, a...)   IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)

#define IEEE80211_DEBUG_WX(f, a...)     IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
#define IEEE80211_DEBUG_SCAN(f, a...)   IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
#define IEEE80211_DEBUG_STATE(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
#define IEEE80211_DEBUG_MGMT(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
#define IEEE80211_DEBUG_FRAG(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
#define IEEE80211_DEBUG_EAP(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_EAP, f, ## a)
#define IEEE80211_DEBUG_DROP(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
#define IEEE80211_DEBUG_TX(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
#define IEEE80211_DEBUG_RX(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
#define IEEE80211_DEBUG_QOS(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_QOS, f, ## a)

#ifdef CONFIG_IEEE80211_DEBUG
/* Added by Annie, 2005-11-22. */
#define MAX_STR_LEN     64
/* I want to see ASCII 33 to 126 only. Otherwise, I print '?'. Annie, 2005-11-22.*/
#define PRINTABLE(_ch)  (_ch>'!' && _ch<'~')
#define IEEE80211_PRINT_STR(_Comp, _TitleString, _Ptr, _Len)                                    \
                        if((_Comp) & level)                                                     \
                        {                                                                       \
                                int             __i;                                            \
                                u8  buffer[MAX_STR_LEN];                                        \
                                int length = (_Len<MAX_STR_LEN)? _Len : (MAX_STR_LEN-1) ;       \
                                memset(buffer, 0, MAX_STR_LEN);                                 \
                                memcpy(buffer, (u8 *)_Ptr, length );                            \
                                for( __i=0; __i<MAX_STR_LEN; __i++ )                            \
                                {                                                               \
                                     if( !PRINTABLE(buffer[__i]) )   buffer[__i] = '?';         \
                                }                                                               \
                                buffer[length] = '\0';                                          \
                                printk("Rtl819x: ");                                            \
                                printk(_TitleString);                                         \
                                printk(": %d, <%s>\n", _Len, buffer);                         \
                        }
#else
#define IEEE80211_PRINT_STR(_Comp, _TitleString, _Ptr, _Len)  do {} while (0)
#endif

#include <linux/netdevice.h>
#include <linux/if_arp.h> /* ARPHRD_ETHER */

#ifndef WIRELESS_SPY
#define WIRELESS_SPY            // enable iwspy support
#endif
#include <net/iw_handler.h>     // new driver API

#ifndef ETH_P_PAE
#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
#endif /* ETH_P_PAE */

#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */

#ifndef ETH_P_80211_RAW
#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
#endif

/* IEEE 802.11 defines */

#define P80211_OUI_LEN 3

struct ieee80211_snap_hdr {

        u8    dsap;   /* always 0xAA */
        u8    ssap;   /* always 0xAA */
        u8    ctrl;   /* always 0x03 */
        u8    oui[P80211_OUI_LEN];    /* organizational universal id */

} __attribute__ ((packed));

#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)

#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
#define WLAN_FC_MORE_DATA(fc) ((fc) & IEEE80211_FCTL_MOREDATA)


#define WLAN_FC_GET_FRAMETYPE(fc) ((fc) & IEEE80211_FCTL_FRAMETYPE)
#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
#define WLAN_GET_SEQ_SEQ(seq)  (((seq) & IEEE80211_SCTL_SEQ) >> 4)

/* Authentication algorithms */
#define WLAN_AUTH_OPEN 0
#define WLAN_AUTH_SHARED_KEY 1
#define WLAN_AUTH_LEAP 2

#define WLAN_AUTH_CHALLENGE_LEN 128

#define WLAN_CAPABILITY_BSS (1<<0)
#define WLAN_CAPABILITY_IBSS (1<<1)
#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
#define WLAN_CAPABILITY_PRIVACY (1<<4)
#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
#define WLAN_CAPABILITY_PBCC (1<<6)
#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
#define WLAN_CAPABILITY_QOS (1<<9)
#define WLAN_CAPABILITY_SHORT_SLOT (1<<10)
#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)

/* 802.11g ERP information element */
#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
#define WLAN_ERP_USE_PROTECTION (1<<1)
#define WLAN_ERP_BARKER_PREAMBLE (1<<2)

/* Status codes */
enum ieee80211_statuscode {
        WLAN_STATUS_SUCCESS = 0,
        WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
        WLAN_STATUS_CAPS_UNSUPPORTED = 10,
        WLAN_STATUS_REASSOC_NO_ASSOC = 11,
        WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
        WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
        WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
        WLAN_STATUS_CHALLENGE_FAIL = 15,
        WLAN_STATUS_AUTH_TIMEOUT = 16,
        WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
        WLAN_STATUS_ASSOC_DENIED_RATES = 18,
        /* 802.11b */
        WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
        WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
        WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
        /* 802.11h */
        WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
        WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
        WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
        /* 802.11g */
        WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
        WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
        /* 802.11i */
        WLAN_STATUS_INVALID_IE = 40,
        WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
        WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
        WLAN_STATUS_INVALID_AKMP = 43,
        WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
        WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
        WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
};

/* Reason codes */
enum ieee80211_reasoncode {
        WLAN_REASON_UNSPECIFIED = 1,
        WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
        WLAN_REASON_DEAUTH_LEAVING = 3,
        WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
        WLAN_REASON_DISASSOC_AP_BUSY = 5,
        WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
        WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
        WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
        WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
        /* 802.11h */
        WLAN_REASON_DISASSOC_BAD_POWER = 10,
        WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
        /* 802.11i */
        WLAN_REASON_INVALID_IE = 13,
        WLAN_REASON_MIC_FAILURE = 14,
        WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
        WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
        WLAN_REASON_IE_DIFFERENT = 17,
        WLAN_REASON_INVALID_GROUP_CIPHER = 18,
        WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
        WLAN_REASON_INVALID_AKMP = 20,
        WLAN_REASON_UNSUPP_RSN_VERSION = 21,
        WLAN_REASON_INVALID_RSN_IE_CAP = 22,
        WLAN_REASON_IEEE8021X_FAILED = 23,
        WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
};

#define IEEE80211_STATMASK_SIGNAL (1<<0)
#define IEEE80211_STATMASK_RSSI (1<<1)
#define IEEE80211_STATMASK_NOISE (1<<2)
#define IEEE80211_STATMASK_RATE (1<<3)
#define IEEE80211_STATMASK_WEMASK 0x7

#define IEEE80211_CCK_MODULATION    (1<<0)
#define IEEE80211_OFDM_MODULATION   (1<<1)

#define IEEE80211_24GHZ_BAND     (1<<0)
#define IEEE80211_52GHZ_BAND     (1<<1)

#define IEEE80211_CCK_RATE_LEN                  4
#define IEEE80211_CCK_RATE_1MB                  0x02
#define IEEE80211_CCK_RATE_2MB                  0x04
#define IEEE80211_CCK_RATE_5MB                  0x0B
#define IEEE80211_CCK_RATE_11MB                 0x16
#define IEEE80211_OFDM_RATE_LEN                 8
#define IEEE80211_OFDM_RATE_6MB                 0x0C
#define IEEE80211_OFDM_RATE_9MB                 0x12
#define IEEE80211_OFDM_RATE_12MB                0x18
#define IEEE80211_OFDM_RATE_18MB                0x24
#define IEEE80211_OFDM_RATE_24MB                0x30
#define IEEE80211_OFDM_RATE_36MB                0x48
#define IEEE80211_OFDM_RATE_48MB                0x60
#define IEEE80211_OFDM_RATE_54MB                0x6C
#define IEEE80211_BASIC_RATE_MASK               0x80

#define IEEE80211_CCK_RATE_1MB_MASK             (1<<0)
#define IEEE80211_CCK_RATE_2MB_MASK             (1<<1)
#define IEEE80211_CCK_RATE_5MB_MASK             (1<<2)
#define IEEE80211_CCK_RATE_11MB_MASK            (1<<3)
#define IEEE80211_OFDM_RATE_6MB_MASK            (1<<4)
#define IEEE80211_OFDM_RATE_9MB_MASK            (1<<5)
#define IEEE80211_OFDM_RATE_12MB_MASK           (1<<6)
#define IEEE80211_OFDM_RATE_18MB_MASK           (1<<7)
#define IEEE80211_OFDM_RATE_24MB_MASK           (1<<8)
#define IEEE80211_OFDM_RATE_36MB_MASK           (1<<9)
#define IEEE80211_OFDM_RATE_48MB_MASK           (1<<10)
#define IEEE80211_OFDM_RATE_54MB_MASK           (1<<11)

#define IEEE80211_CCK_RATES_MASK                0x0000000F
#define IEEE80211_CCK_BASIC_RATES_MASK  (IEEE80211_CCK_RATE_1MB_MASK | \
        IEEE80211_CCK_RATE_2MB_MASK)
#define IEEE80211_CCK_DEFAULT_RATES_MASK        (IEEE80211_CCK_BASIC_RATES_MASK | \
        IEEE80211_CCK_RATE_5MB_MASK | \
        IEEE80211_CCK_RATE_11MB_MASK)

#define IEEE80211_OFDM_RATES_MASK               0x00000FF0
#define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
        IEEE80211_OFDM_RATE_12MB_MASK | \
        IEEE80211_OFDM_RATE_24MB_MASK)
#define IEEE80211_OFDM_DEFAULT_RATES_MASK       (IEEE80211_OFDM_BASIC_RATES_MASK | \
        IEEE80211_OFDM_RATE_9MB_MASK  | \
        IEEE80211_OFDM_RATE_18MB_MASK | \
        IEEE80211_OFDM_RATE_36MB_MASK | \
        IEEE80211_OFDM_RATE_48MB_MASK | \
        IEEE80211_OFDM_RATE_54MB_MASK)
#define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
                                IEEE80211_CCK_DEFAULT_RATES_MASK)

#define IEEE80211_NUM_OFDM_RATES            8
#define IEEE80211_NUM_CCK_RATES             4
#define IEEE80211_OFDM_SHIFT_MASK_A         4


/* this is stolen and modified from the madwifi driver*/
#define IEEE80211_FC0_TYPE_MASK         0x0c
#define IEEE80211_FC0_TYPE_DATA         0x08
#define IEEE80211_FC0_SUBTYPE_MASK      0xB0
#define IEEE80211_FC0_SUBTYPE_QOS       0x80

#define IEEE80211_QOS_HAS_SEQ(fc) \
        (((fc) & (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == \
         (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS))

/* this is stolen from ipw2200 driver */
#define IEEE_IBSS_MAC_HASH_SIZE 31
struct ieee_ibss_seq {
        u8 mac[ETH_ALEN];
        u16 seq_num[17];
        u16 frag_num[17];
        unsigned long packet_time[17];
        struct list_head list;
};

/* NOTE: This data is for statistical purposes; not all hardware provides this
 *       information for frames received.  Not setting these will not cause
 *       any adverse affects. */
struct ieee80211_rx_stats {
#if 1
        u32 mac_time[2];
        s8 rssi;
        u8 signal;
        u8 noise;
        u16 rate; /* in 100 kbps */
        u8 received_channel;
        u8 control;
        u8 mask;
        u8 freq;
        u16 len;
        u64 tsf;
        u32 beacon_time;
        u8 nic_type;
        u16       Length;
        //      u8        DataRate;      // In 0.5 Mbps
        u8        SignalQuality; // in 0-100 index.
        s32       RecvSignalPower; // Real power in dBm for this packet, no beautification and aggregation.
        s8        RxPower; // in dBm Translate from PWdB
        u8        SignalStrength; // in 0-100 index.
        u16       bHwError:1;
        u16       bCRC:1;
        u16       bICV:1;
        u16       bShortPreamble:1;
        u16       Antenna:1;      //for rtl8185
        u16       Decrypted:1;    //for rtl8185, rtl8187
        u16       Wakeup:1;       //for rtl8185
        u16       Reserved0:1;    //for rtl8185
        u8        AGC;
        u32       TimeStampLow;
        u32       TimeStampHigh;
        bool      bShift;
        bool      bIsQosData;             // Added by Annie, 2005-12-22.
        u8        UserPriority;

        //1!!!!!!!!!!!!!!!!!!!!!!!!!!!
        //1Attention Please!!!<11n or 8190 specific code should be put below this line>
        //1!!!!!!!!!!!!!!!!!!!!!!!!!!!

        u8        RxDrvInfoSize;
        u8        RxBufShift;
        bool      bIsAMPDU;
        bool      bFirstMPDU;
        bool      bContainHTC;
        bool      RxIs40MHzPacket;
        u32       RxPWDBAll;
        u8        RxMIMOSignalStrength[4];        // in 0~100 index
        s8        RxMIMOSignalQuality[2];
        bool      bPacketMatchBSSID;
        bool      bIsCCK;
        bool      bPacketToSelf;
        //added by amy
        u8*       virtual_address;
        u16          packetlength;              // Total packet length: Must equal to sum of all FragLength
        u16          fraglength;                        // FragLength should equal to PacketLength in non-fragment case
        u16          fragoffset;                        // Data offset for this fragment
        u16          ntotalfrag;
        bool              bisrxaggrsubframe;
        bool              bPacketBeacon;        //cosa add for rssi
        bool              bToSelfBA;            //cosa add for rssi
        char      cck_adc_pwdb[4];      //cosa add for rx path selection
        u16               Seq_Num;
#endif

};

/* IEEE 802.11 requires that STA supports concurrent reception of at least
 * three fragmented frames. This define can be increased to support more
 * concurrent frames, but it should be noted that each entry can consume about
 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */

#define IEEE80211_FRAG_CACHE_LEN 4

struct ieee80211_frag_entry {
        unsigned long first_frag_time;
        unsigned int seq;
        unsigned int last_frag;
        struct sk_buff *skb;
        u8 src_addr[ETH_ALEN];
        u8 dst_addr[ETH_ALEN];
};

struct ieee80211_stats {
        unsigned int tx_unicast_frames;
        unsigned int tx_multicast_frames;
        unsigned int tx_fragments;
        unsigned int tx_unicast_octets;
        unsigned int tx_multicast_octets;
        unsigned int tx_deferred_transmissions;
        unsigned int tx_single_retry_frames;
        unsigned int tx_multiple_retry_frames;
        unsigned int tx_retry_limit_exceeded;
        unsigned int tx_discards;
        unsigned int rx_unicast_frames;
        unsigned int rx_multicast_frames;
        unsigned int rx_fragments;
        unsigned int rx_unicast_octets;
        unsigned int rx_multicast_octets;
        unsigned int rx_fcs_errors;
        unsigned int rx_discards_no_buffer;
        unsigned int tx_discards_wrong_sa;
        unsigned int rx_discards_undecryptable;
        unsigned int rx_message_in_msg_fragments;
        unsigned int rx_message_in_bad_msg_fragments;
};

struct ieee80211_device;

#include "ieee80211_crypt.h"

#define SEC_KEY_1         (1<<0)
#define SEC_KEY_2         (1<<1)
#define SEC_KEY_3         (1<<2)
#define SEC_KEY_4         (1<<3)
#define SEC_ACTIVE_KEY    (1<<4)
#define SEC_AUTH_MODE     (1<<5)
#define SEC_UNICAST_GROUP (1<<6)
#define SEC_LEVEL         (1<<7)
#define SEC_ENABLED       (1<<8)
#define SEC_ENCRYPT       (1<<9)

#define SEC_LEVEL_0      0 /* None */
#define SEC_LEVEL_1      1 /* WEP 40 and 104 bit */
#define SEC_LEVEL_2      2 /* Level 1 + TKIP */
#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
#define SEC_LEVEL_3      4 /* Level 2 + CCMP */

#define SEC_ALG_NONE            0
#define SEC_ALG_WEP             1
#define SEC_ALG_TKIP            2
#define SEC_ALG_CCMP            4

#define WEP_KEYS                4
#define WEP_KEY_LEN             13
#define SCM_KEY_LEN             32
#define SCM_TEMPORAL_KEY_LENGTH 16

struct ieee80211_security {
        u16 active_key:2,
            enabled:1,
            auth_mode:2,
            auth_algo:4,
            unicast_uses_group:1,
            encrypt:1;
        u8 key_sizes[WEP_KEYS];
        u8 keys[WEP_KEYS][SCM_KEY_LEN];
        u8 level;
        u16 flags;
} __attribute__ ((packed));


/*
 802.11 data frame from AP
      ,-------------------------------------------------------------------.
Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
      |------|------|---------|---------|---------|------|---------|------|
Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  frame  |  fcs |
      |      | tion | (BSSID) |         |         | ence |  data   |      |
      `-------------------------------------------------------------------'
Total: 28-2340 bytes
*/

/* Management Frame Information Element Types */
enum ieee80211_mfie {
        MFIE_TYPE_SSID = 0,
        MFIE_TYPE_RATES = 1,
        MFIE_TYPE_FH_SET = 2,
        MFIE_TYPE_DS_SET = 3,
        MFIE_TYPE_CF_SET = 4,
        MFIE_TYPE_TIM = 5,
        MFIE_TYPE_IBSS_SET = 6,
        MFIE_TYPE_COUNTRY = 7,
        MFIE_TYPE_HOP_PARAMS = 8,
        MFIE_TYPE_HOP_TABLE = 9,
        MFIE_TYPE_REQUEST = 10,
        MFIE_TYPE_CHALLENGE = 16,
        MFIE_TYPE_POWER_CONSTRAINT = 32,
        MFIE_TYPE_POWER_CAPABILITY = 33,
        MFIE_TYPE_TPC_REQUEST = 34,
        MFIE_TYPE_TPC_REPORT = 35,
        MFIE_TYPE_SUPP_CHANNELS = 36,
        MFIE_TYPE_CSA = 37,
        MFIE_TYPE_MEASURE_REQUEST = 38,
        MFIE_TYPE_MEASURE_REPORT = 39,
        MFIE_TYPE_QUIET = 40,
        MFIE_TYPE_IBSS_DFS = 41,
        MFIE_TYPE_ERP = 42,
        MFIE_TYPE_RSN = 48,
        MFIE_TYPE_RATES_EX = 50,
        MFIE_TYPE_HT_CAP= 45,
         MFIE_TYPE_HT_INFO= 61,
         MFIE_TYPE_AIRONET=133,
        MFIE_TYPE_GENERIC = 221,
        MFIE_TYPE_QOS_PARAMETER = 222,
};

/* Minimal header; can be used for passing 802.11 frames with sufficient
 * information to determine what type of underlying data type is actually
 * stored in the data. */
 struct ieee80211_pspoll_hdr {
        __le16 frame_ctl;
        __le16 aid;
        u8 bssid[ETH_ALEN];
        u8 ta[ETH_ALEN];
        //u8 payload[0];
} __attribute__ ((packed));

struct ieee80211_hdr {
        __le16 frame_ctl;
        __le16 duration_id;
        u8 payload[0];
} __attribute__ ((packed));

struct ieee80211_hdr_1addr {
        __le16 frame_ctl;
        __le16 duration_id;
        u8 addr1[ETH_ALEN];
        u8 payload[0];
} __attribute__ ((packed));

struct ieee80211_hdr_2addr {
        __le16 frame_ctl;
        __le16 duration_id;
        u8 addr1[ETH_ALEN];
        u8 addr2[ETH_ALEN];
        u8 payload[0];
} __attribute__ ((packed));

struct ieee80211_hdr_3addr {
        __le16 frame_ctl;
        __le16 duration_id;
        u8 addr1[ETH_ALEN];
        u8 addr2[ETH_ALEN];
        u8 addr3[ETH_ALEN];
        __le16 seq_ctl;
        u8 payload[0];
} __attribute__ ((packed));

struct ieee80211_hdr_4addr {
        __le16 frame_ctl;
        __le16 duration_id;
        u8 addr1[ETH_ALEN];
        u8 addr2[ETH_ALEN];
        u8 addr3[ETH_ALEN];
        __le16 seq_ctl;
        u8 addr4[ETH_ALEN];
        u8 payload[0];
} __attribute__ ((packed));

struct ieee80211_hdr_3addrqos {
        __le16 frame_ctl;
        __le16 duration_id;
        u8 addr1[ETH_ALEN];
        u8 addr2[ETH_ALEN];
        u8 addr3[ETH_ALEN];
        __le16 seq_ctl;
        u8 payload[0];
        __le16 qos_ctl;
} __attribute__ ((packed));

struct ieee80211_hdr_4addrqos {
        __le16 frame_ctl;
        __le16 duration_id;
        u8 addr1[ETH_ALEN];
        u8 addr2[ETH_ALEN];
        u8 addr3[ETH_ALEN];
        __le16 seq_ctl;
        u8 addr4[ETH_ALEN];
        u8 payload[0];
        __le16 qos_ctl;
} __attribute__ ((packed));

struct ieee80211_info_element {
        u8 id;
        u8 len;
        u8 data[0];
} __attribute__ ((packed));

struct ieee80211_authentication {
        struct ieee80211_hdr_3addr header;
        __le16 algorithm;
        __le16 transaction;
        __le16 status;
        /*challenge*/
        struct ieee80211_info_element info_element[0];
} __attribute__ ((packed));

struct ieee80211_disassoc {
        struct ieee80211_hdr_3addr header;
        __le16 reason;
} __attribute__ ((packed));

struct ieee80211_probe_request {
        struct ieee80211_hdr_3addr header;
        /* SSID, supported rates */
        struct ieee80211_info_element info_element[0];
} __attribute__ ((packed));

struct ieee80211_probe_response {
        struct ieee80211_hdr_3addr header;
        u32 time_stamp[2];
        __le16 beacon_interval;
        __le16 capability;
        /* SSID, supported rates, FH params, DS params,
         * CF params, IBSS params, TIM (if beacon), RSN */
        struct ieee80211_info_element info_element[0];
} __attribute__ ((packed));

/* Alias beacon for probe_response */
#define ieee80211_beacon ieee80211_probe_response

struct ieee80211_assoc_request_frame {
        struct ieee80211_hdr_3addr header;
        __le16 capability;
        __le16 listen_interval;
        /* SSID, supported rates, RSN */
        struct ieee80211_info_element info_element[0];
} __attribute__ ((packed));

struct ieee80211_reassoc_request_frame {
        struct ieee80211_hdr_3addr header;
        __le16 capability;
        __le16 listen_interval;
        u8 current_ap[ETH_ALEN];
        /* SSID, supported rates, RSN */
        struct ieee80211_info_element info_element[0];
} __attribute__ ((packed));

struct ieee80211_assoc_response_frame {
        struct ieee80211_hdr_3addr header;
        __le16 capability;
        __le16 status;
        __le16 aid;
        struct ieee80211_info_element info_element[0]; /* supported rates */
} __attribute__ ((packed));

struct ieee80211_txb {
        u8 nr_frags;
        u8 encrypted;
        u8 queue_index;
        u8 rts_included;
        u16 reserved;
        __le16 frag_size;
        __le16 payload_size;
        struct sk_buff *fragments[0];
};

#define MAX_TX_AGG_COUNT                  16
struct ieee80211_drv_agg_txb {
        u8 nr_drv_agg_frames;
        struct sk_buff *tx_agg_frames[MAX_TX_AGG_COUNT];
}__attribute__((packed));

#define MAX_SUBFRAME_COUNT                64
struct ieee80211_rxb {
        u8 nr_subframes;
        struct sk_buff *subframes[MAX_SUBFRAME_COUNT];
        u8 dst[ETH_ALEN];
        u8 src[ETH_ALEN];
}__attribute__((packed));

typedef union _frameqos {
        u16 shortdata;
        u8  chardata[2];
        struct {
                u16 tid:4;
                u16 eosp:1;
                u16 ack_policy:2;
                u16 reserved:1;
                u16 txop:8;
        }field;
}frameqos,*pframeqos;

/* SWEEP TABLE ENTRIES NUMBER*/
#define MAX_SWEEP_TAB_ENTRIES             42
#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET  7
/* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
 * only use 8, and then use extended rates for the remaining supported
 * rates.  Other APs, however, stick all of their supported rates on the
 * main rates information element... */
#define MAX_RATES_LENGTH                  ((u8)12)
#define MAX_RATES_EX_LENGTH               ((u8)16)
#define MAX_NETWORK_COUNT                  128

#define MAX_CHANNEL_NUMBER                 161
#define IEEE80211_SOFTMAC_SCAN_TIME        100
//(HZ / 2)
#define IEEE80211_SOFTMAC_ASSOC_RETRY_TIME (HZ * 2)

#define CRC_LENGTH                 4U

#define MAX_WPA_IE_LEN 64

#define NETWORK_EMPTY_ESSID (1<<0)
#define NETWORK_HAS_OFDM    (1<<1)
#define NETWORK_HAS_CCK     (1<<2)

/* QoS structure */
#define NETWORK_HAS_QOS_PARAMETERS      (1<<3)
#define NETWORK_HAS_QOS_INFORMATION     (1<<4)
#define NETWORK_HAS_QOS_MASK            (NETWORK_HAS_QOS_PARAMETERS | \
                                         NETWORK_HAS_QOS_INFORMATION)
/* 802.11h */
#define NETWORK_HAS_POWER_CONSTRAINT    (1<<5)
#define NETWORK_HAS_CSA                 (1<<6)
#define NETWORK_HAS_QUIET               (1<<7)
#define NETWORK_HAS_IBSS_DFS            (1<<8)
#define NETWORK_HAS_TPC_REPORT          (1<<9)

#define NETWORK_HAS_ERP_VALUE           (1<<10)

#define QOS_QUEUE_NUM                   4
#define QOS_OUI_LEN                     3
#define QOS_OUI_TYPE                    2
#define QOS_ELEMENT_ID                  221
#define QOS_OUI_INFO_SUB_TYPE           0
#define QOS_OUI_PARAM_SUB_TYPE          1
#define QOS_VERSION_1                   1
#define QOS_AIFSN_MIN_VALUE             2
#if 1
struct ieee80211_qos_information_element {
        u8 elementID;
        u8 length;
        u8 qui[QOS_OUI_LEN];
        u8 qui_type;
        u8 qui_subtype;
        u8 version;
        u8 ac_info;
} __attribute__ ((packed));

struct ieee80211_qos_ac_parameter {
        u8 aci_aifsn;
        u8 ecw_min_max;
        __le16 tx_op_limit;
} __attribute__ ((packed));

struct ieee80211_qos_parameter_info {
        struct ieee80211_qos_information_element info_element;
        u8 reserved;
        struct ieee80211_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
} __attribute__ ((packed));

struct ieee80211_qos_parameters {
        __le16 cw_min[QOS_QUEUE_NUM];
        __le16 cw_max[QOS_QUEUE_NUM];
        u8 aifs[QOS_QUEUE_NUM];
        u8 flag[QOS_QUEUE_NUM];
        __le16 tx_op_limit[QOS_QUEUE_NUM];
} __attribute__ ((packed));

struct ieee80211_qos_data {
        struct ieee80211_qos_parameters parameters;
        int active;
        int supported;
        u8 param_count;
        u8 old_param_count;
};

struct ieee80211_tim_parameters {
        u8 tim_count;
        u8 tim_period;
} __attribute__ ((packed));

//#else
struct ieee80211_wmm_ac_param {
        u8 ac_aci_acm_aifsn;
        u8 ac_ecwmin_ecwmax;
        u16 ac_txop_limit;
};

struct ieee80211_wmm_ts_info {
        u8 ac_dir_tid;
        u8 ac_up_psb;
        u8 reserved;
} __attribute__ ((packed));

struct ieee80211_wmm_tspec_elem {
        struct ieee80211_wmm_ts_info ts_info;
        u16 norm_msdu_size;
        u16 max_msdu_size;
        u32 min_serv_inter;
        u32 max_serv_inter;
        u32 inact_inter;
        u32 suspen_inter;
        u32 serv_start_time;
        u32 min_data_rate;
        u32 mean_data_rate;
        u32 peak_data_rate;
        u32 max_burst_size;
        u32 delay_bound;
        u32 min_phy_rate;
        u16 surp_band_allow;
        u16 medium_time;
}__attribute__((packed));
#endif
enum eap_type {
        EAP_PACKET = 0,
        EAPOL_START,
        EAPOL_LOGOFF,
        EAPOL_KEY,
        EAPOL_ENCAP_ASF_ALERT
};

static const char *eap_types[] = {
        [EAP_PACKET]            = "EAP-Packet",
        [EAPOL_START]           = "EAPOL-Start",
        [EAPOL_LOGOFF]          = "EAPOL-Logoff",
        [EAPOL_KEY]             = "EAPOL-Key",
        [EAPOL_ENCAP_ASF_ALERT] = "EAPOL-Encap-ASF-Alert"
};

static inline const char *eap_get_type(int type)
{
        return ((u32)type >= ARRAY_SIZE(eap_types)) ? "Unknown" : eap_types[type];
}
//added by amy for reorder
static inline u8 Frame_QoSTID(u8* buf)
{
        struct ieee80211_hdr_3addr *hdr;
        u16 fc;
        hdr = (struct ieee80211_hdr_3addr *)buf;
        fc = le16_to_cpu(hdr->frame_ctl);
        return (u8)((frameqos*)(buf + (((fc & IEEE80211_FCTL_TODS)&&(fc & IEEE80211_FCTL_FROMDS))? 30 : 24)))->field.tid;
}

//added by amy for reorder

struct eapol {
        u8 snap[6];
        u16 ethertype;
        u8 version;
        u8 type;
        u16 length;
} __attribute__ ((packed));

struct ieee80211_softmac_stats{
        unsigned int rx_ass_ok;
        unsigned int rx_ass_err;
        unsigned int rx_probe_rq;
        unsigned int tx_probe_rs;
        unsigned int tx_beacons;
        unsigned int rx_auth_rq;
        unsigned int rx_auth_rs_ok;
        unsigned int rx_auth_rs_err;
        unsigned int tx_auth_rq;
        unsigned int no_auth_rs;
        unsigned int no_ass_rs;
        unsigned int tx_ass_rq;
        unsigned int rx_ass_rq;
        unsigned int tx_probe_rq;
        unsigned int reassoc;
        unsigned int swtxstop;
        unsigned int swtxawake;
        unsigned char CurrentShowTxate;
        unsigned char last_packet_rate;
        unsigned int txretrycount;
};

#define BEACON_PROBE_SSID_ID_POSITION 12

struct ieee80211_info_element_hdr {
        u8 id;
        u8 len;
} __attribute__ ((packed));

/*
 * These are the data types that can make up management packets
 *
        u16 auth_algorithm;
        u16 auth_sequence;
        u16 beacon_interval;
        u16 capability;
        u8 current_ap[ETH_ALEN];
        u16 listen_interval;
        struct {
                u16 association_id:14, reserved:2;
        } __attribute__ ((packed));
        u32 time_stamp[2];
        u16 reason;
        u16 status;
*/

#define IEEE80211_DEFAULT_TX_ESSID "Penguin"
#define IEEE80211_DEFAULT_BASIC_RATE 2 //1Mbps

enum {WMM_all_frame, WMM_two_frame, WMM_four_frame, WMM_six_frame};
#define MAX_SP_Len  (WMM_all_frame << 4)
#define IEEE80211_QOS_TID 0x0f
#define QOS_CTL_NOTCONTAIN_ACK (0x01 << 5)

#define IEEE80211_DTIM_MBCAST 4
#define IEEE80211_DTIM_UCAST 2
#define IEEE80211_DTIM_VALID 1
#define IEEE80211_DTIM_INVALID 0

#define IEEE80211_PS_DISABLED 0
#define IEEE80211_PS_UNICAST IEEE80211_DTIM_UCAST
#define IEEE80211_PS_MBCAST IEEE80211_DTIM_MBCAST

//added by David for QoS 2006/6/30
//#define WMM_Hang_8187
#ifdef WMM_Hang_8187
#undef WMM_Hang_8187
#endif

#define WME_AC_BK   0x00
#define WME_AC_BE   0x01
#define WME_AC_VI   0x02
#define WME_AC_VO   0x03
#define WME_ACI_MASK 0x03
#define WME_AIFSN_MASK 0x03
#define WME_AC_PRAM_LEN 16

#define MAX_RECEIVE_BUFFER_SIZE 9100

//UP Mapping to AC, using in MgntQuery_SequenceNumber() and maybe for DSCP
//#define UP2AC(up)     ((up<3) ? ((up==0)?1:0) : (up>>1))
#if 1
#define UP2AC(up) (                \
        ((up) < 1) ? WME_AC_BE : \
        ((up) < 3) ? WME_AC_BK : \
        ((up) < 4) ? WME_AC_BE : \
        ((up) < 6) ? WME_AC_VI : \
        WME_AC_VO)
#endif
//AC Mapping to UP, using in Tx part for selecting the corresponding TX queue
#define AC2UP(_ac)      (       \
        ((_ac) == WME_AC_VO) ? 6 : \
        ((_ac) == WME_AC_VI) ? 5 : \
        ((_ac) == WME_AC_BK) ? 1 : \
        0)

#define ETHER_ADDR_LEN          6       /* length of an Ethernet address */
#define ETHERNET_HEADER_SIZE    14      /* length of two Ethernet address plus ether type*/

struct  ether_header {
        u8 ether_dhost[ETHER_ADDR_LEN];
        u8 ether_shost[ETHER_ADDR_LEN];
        u16 ether_type;
} __attribute__((packed));

#ifndef ETHERTYPE_PAE
#define ETHERTYPE_PAE   0x888e          /* EAPOL PAE/802.1x */
#endif
#ifndef ETHERTYPE_IP
#define ETHERTYPE_IP    0x0800          /* IP protocol */
#endif

typedef struct _bss_ht{

        bool                            support_ht;

        // HT related elements
        u8                                      ht_cap_buf[32];
        u16                                     ht_cap_len;
        u8                                      ht_info_buf[32];
        u16                                     ht_info_len;

        HT_SPEC_VER                     ht_spec_ver;
        //HT_CAPABILITY_ELE                     bdHTCapEle;
        //HT_INFORMATION_ELE            bdHTInfoEle;

        bool                            aggregation;
        bool                            long_slot_time;
}bss_ht, *pbss_ht;

typedef enum _erp_t{
        ERP_NonERPpresent       = 0x01,
        ERP_UseProtection       = 0x02,
        ERP_BarkerPreambleMode = 0x04,
} erp_t;


struct ieee80211_network {
        /* These entries are used to identify a unique network */
        u8 bssid[ETH_ALEN];
        u8 channel;
        /* Ensure null-terminated for any debug msgs */
        u8 ssid[IW_ESSID_MAX_SIZE + 1];
        u8 ssid_len;
#if 1
        struct ieee80211_qos_data qos_data;
#else
       // Qos related. Added by Annie, 2005-11-01.
        BSS_QOS   BssQos;
#endif

        //added by amy for LEAP
        bool    bWithAironetIE;
        bool    bCkipSupported;
        bool    bCcxRmEnable;
        u16     CcxRmState[2];
        // CCXv4 S59, MBSSID.
        bool    bMBssidValid;
        u8      MBssidMask;
        u8      MBssid[6];
        // CCX 2 S38, WLAN Device Version Number element. Annie, 2006-08-20.
        bool    bWithCcxVerNum;
        u8      BssCcxVerNumber;
        /* These are network statistics */
        struct ieee80211_rx_stats stats;
        u16 capability;
        u8  rates[MAX_RATES_LENGTH];
        u8  rates_len;
        u8  rates_ex[MAX_RATES_EX_LENGTH];
        u8  rates_ex_len;
        unsigned long last_scanned;
        u8  mode;
        u32 flags;
        u32 last_associate;
        u32 time_stamp[2];
        u16 beacon_interval;
        u16 listen_interval;
        u16 atim_window;
        u8  erp_value;
        u8  wpa_ie[MAX_WPA_IE_LEN];
        size_t wpa_ie_len;
        u8  rsn_ie[MAX_WPA_IE_LEN];
        size_t rsn_ie_len;

        struct ieee80211_tim_parameters tim;
        u8  dtim_period;
        u8  dtim_data;
        u32 last_dtim_sta_time[2];

        //appeded for QoS
        u8 wmm_info;
        struct ieee80211_wmm_ac_param wmm_param[4];
        u8 QoS_Enable;
#ifdef THOMAS_TURBO
        u8 Turbo_Enable;//enable turbo mode, added by thomas
#endif
#ifdef ENABLE_DOT11D
        u16 CountryIeLen;
        u8 CountryIeBuf[MAX_IE_LEN];
#endif
        // HT Related, by amy, 2008.04.29
        BSS_HT  bssht;
        // Add to handle broadcom AP management frame CCK rate.
        bool broadcom_cap_exist;
        bool ralink_cap_exist;
        bool atheros_cap_exist;
        bool cisco_cap_exist;
        bool marvell_cap_exist;
        bool unknown_cap_exist;
//      u8      berp_info;
        bool    berp_info_valid;
        bool buseprotection;
        //put at the end of the structure.
        struct list_head list;
};

#if 1
enum ieee80211_state {

        /* the card is not linked at all */
        IEEE80211_NOLINK = 0,

        /* IEEE80211_ASSOCIATING* are for BSS client mode
         * the driver shall not perform RX filtering unless
         * the state is LINKED.
         * The driver shall just check for the state LINKED and
         * defaults to NOLINK for ALL the other states (including
         * LINKED_SCANNING)
         */

        /* the association procedure will start (wq scheduling)*/
        IEEE80211_ASSOCIATING,
        IEEE80211_ASSOCIATING_RETRY,

        /* the association procedure is sending AUTH request*/
        IEEE80211_ASSOCIATING_AUTHENTICATING,

        /* the association procedure has successfully authentcated
         * and is sending association request
         */
        IEEE80211_ASSOCIATING_AUTHENTICATED,

        /* the link is ok. the card associated to a BSS or linked
         * to a ibss cell or acting as an AP and creating the bss
         */
        IEEE80211_LINKED,

        /* same as LINKED, but the driver shall apply RX filter
         * rules as we are in NO_LINK mode. As the card is still
         * logically linked, but it is doing a syncro site survey
         * then it will be back to LINKED state.
         */
        IEEE80211_LINKED_SCANNING,

};
#else
enum ieee80211_state {
        IEEE80211_UNINITIALIZED = 0,
        IEEE80211_INITIALIZED,
        IEEE80211_ASSOCIATING,
        IEEE80211_ASSOCIATED,
        IEEE80211_AUTHENTICATING,
        IEEE80211_AUTHENTICATED,
        IEEE80211_SHUTDOWN
};
#endif

#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
#define DEFAULT_FTS 2346

#define CFG_IEEE80211_RESERVE_FCS (1<<0)
#define CFG_IEEE80211_COMPUTE_FCS (1<<1)
#define CFG_IEEE80211_RTS (1<<2)

#define IEEE80211_24GHZ_MIN_CHANNEL 1
#define IEEE80211_24GHZ_MAX_CHANNEL 14
#define IEEE80211_24GHZ_CHANNELS (IEEE80211_24GHZ_MAX_CHANNEL - \
                                  IEEE80211_24GHZ_MIN_CHANNEL + 1)

#define IEEE80211_52GHZ_MIN_CHANNEL 34
#define IEEE80211_52GHZ_MAX_CHANNEL 165
#define IEEE80211_52GHZ_CHANNELS (IEEE80211_52GHZ_MAX_CHANNEL - \
                                  IEEE80211_52GHZ_MIN_CHANNEL + 1)

#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,11))
extern inline int is_multicast_ether_addr(const u8 *addr)
{
        return ((addr[0] != 0xff) && (0x01 & addr[0]));
}
#endif

#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,13))
extern inline int is_broadcast_ether_addr(const u8 *addr)
{
        return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) &&   \
                (addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff));
}
#endif

typedef struct tx_pending_t{
        int frag;
        struct ieee80211_txb *txb;
}tx_pending_t;

typedef struct _bandwidth_autoswitch
{
        long threshold_20Mhzto40Mhz;
        long    threshold_40Mhzto20Mhz;
        bool bforced_tx20Mhz;
        bool bautoswitch_enable;
}bandwidth_autoswitch,*pbandwidth_autoswitch;


//added by amy for order

#define REORDER_WIN_SIZE        128
#define REORDER_ENTRY_NUM       128
typedef struct _RX_REORDER_ENTRY
{
        struct list_head        List;
        u16                     SeqNum;
        struct ieee80211_rxb* prxb;
} RX_REORDER_ENTRY, *PRX_REORDER_ENTRY;
//added by amy for order
typedef enum _Fsync_State{
        Default_Fsync,
        HW_Fsync,
        SW_Fsync
}Fsync_State;

// Power save mode configured.
typedef enum _RT_PS_MODE
{
        eActive,        // Active/Continuous access.
        eMaxPs,         // Max power save mode.
        eFastPs         // Fast power save mode.
}RT_PS_MODE;

typedef enum _IPS_CALLBACK_FUNCION
{
        IPS_CALLBACK_NONE = 0,
        IPS_CALLBACK_MGNT_LINK_REQUEST = 1,
        IPS_CALLBACK_JOIN_REQUEST = 2,
}IPS_CALLBACK_FUNCION;

typedef enum _RT_JOIN_ACTION{
        RT_JOIN_INFRA   = 1,
        RT_JOIN_IBSS  = 2,
        RT_START_IBSS = 3,
        RT_NO_ACTION  = 4,
}RT_JOIN_ACTION;

typedef struct _IbssParms{
        u16   atimWin;
}IbssParms, *PIbssParms;
#define MAX_NUM_RATES   264 // Max num of support rates element: 8,  Max num of ext. support rate: 255. 061122, by rcnjko.

// RF state.
typedef enum _RT_RF_POWER_STATE
{
        eRfOn,
        eRfSleep,
        eRfOff
}RT_RF_POWER_STATE;

typedef struct _RT_POWER_SAVE_CONTROL
{

        //
        // Inactive Power Save(IPS) : Disable RF when disconnected
        //
        bool                            bInactivePs;
        bool                            bIPSModeBackup;
        bool                            bSwRfProcessing;
        RT_RF_POWER_STATE       eInactivePowerState;
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
        struct work_struct      InactivePsWorkItem;
#else
        struct tq_struct        InactivePsWorkItem;
#endif
        struct timer_list       InactivePsTimer;

        // Return point for join action
        IPS_CALLBACK_FUNCION    ReturnPoint;

        // Recored Parameters for rescheduled JoinRequest
        bool                            bTmpBssDesc;
        RT_JOIN_ACTION          tmpJoinAction;
        struct ieee80211_network tmpBssDesc;

        // Recored Parameters for rescheduled MgntLinkRequest
        bool                            bTmpScanOnly;
        bool                            bTmpActiveScan;
        bool                            bTmpFilterHiddenAP;
        bool                            bTmpUpdateParms;
        u8                                      tmpSsidBuf[33];
        OCTET_STRING                    tmpSsid2Scan;
        bool                            bTmpSsid2Scan;
        u8                                      tmpNetworkType;
        u8                                      tmpChannelNumber;
        u16                                     tmpBcnPeriod;
        u8                                      tmpDtimPeriod;
        u16                                     tmpmCap;
        OCTET_STRING                    tmpSuppRateSet;
        u8                                      tmpSuppRateBuf[MAX_NUM_RATES];
        bool                            bTmpSuppRate;
        IbssParms                               tmpIbpm;
        bool                            bTmpIbpm;

        //
        // Leisre Poswer Save : Disable RF if connected but traffic is not busy
        //
        bool                            bLeisurePs;
        u32                             PowerProfile;
        u8                              LpsIdleCount;
        u8                              RegMaxLPSAwakeIntvl;
        u8                              LPSAwakeIntvl;

        u32                             CurPsLevel;
        u32                             RegRfPsLevel;

        bool                            bFwCtrlLPS;
        u8                              FWCtrlPSMode;

        bool                            LinkReqInIPSRFOffPgs;
        bool                            BufConnectinfoBefore;

}RT_POWER_SAVE_CONTROL,*PRT_POWER_SAVE_CONTROL;

typedef u32 RT_RF_CHANGE_SOURCE;
#define RF_CHANGE_BY_SW BIT31
#define RF_CHANGE_BY_HW BIT30
#define RF_CHANGE_BY_PS BIT29
#define RF_CHANGE_BY_IPS BIT28
#define RF_CHANGE_BY_INIT       0       // Do not change the RFOff reason. Defined by Bruce, 2008-01-17.

#ifdef ENABLE_DOT11D
typedef enum
{
        COUNTRY_CODE_FCC = 0,
        COUNTRY_CODE_IC = 1,
        COUNTRY_CODE_ETSI = 2,
        COUNTRY_CODE_SPAIN = 3,
        COUNTRY_CODE_FRANCE = 4,
        COUNTRY_CODE_MKK = 5,
        COUNTRY_CODE_MKK1 = 6,
        COUNTRY_CODE_ISRAEL = 7,
        COUNTRY_CODE_TELEC,
        COUNTRY_CODE_MIC,
        COUNTRY_CODE_GLOBAL_DOMAIN
}country_code_type_t;
#endif

#define RT_MAX_LD_SLOT_NUM      10
typedef struct _RT_LINK_DETECT_T{

        u32                             NumRecvBcnInPeriod;
        u32                             NumRecvDataInPeriod;

        u32                             RxBcnNum[RT_MAX_LD_SLOT_NUM];   // number of Rx beacon / CheckForHang_period  to determine link status
        u32                             RxDataNum[RT_MAX_LD_SLOT_NUM];  // number of Rx data / CheckForHang_period  to determine link status
        u16                             SlotNum;        // number of CheckForHang period to determine link status
        u16                             SlotIndex;

        u32                             NumTxOkInPeriod;
        u32                             NumRxOkInPeriod;
        u32                             NumRxUnicastOkInPeriod;
        bool                            bBusyTraffic;
}RT_LINK_DETECT_T, *PRT_LINK_DETECT_T;

//added by amy 090330
typedef enum _HW_VARIABLES{
        HW_VAR_ETHER_ADDR,
        HW_VAR_MULTICAST_REG,
        HW_VAR_BASIC_RATE,
        HW_VAR_BSSID,
        HW_VAR_MEDIA_STATUS,
        HW_VAR_SECURITY_CONF,
        HW_VAR_BEACON_INTERVAL,
        HW_VAR_ATIM_WINDOW,
        HW_VAR_LISTEN_INTERVAL,
        HW_VAR_CS_COUNTER,
        HW_VAR_DEFAULTKEY0,
        HW_VAR_DEFAULTKEY1,
        HW_VAR_DEFAULTKEY2,
        HW_VAR_DEFAULTKEY3,
        HW_VAR_SIFS,
        HW_VAR_DIFS,
        HW_VAR_EIFS,
        HW_VAR_SLOT_TIME,
        HW_VAR_ACK_PREAMBLE,
        HW_VAR_CW_CONFIG,
        HW_VAR_CW_VALUES,
        HW_VAR_RATE_FALLBACK_CONTROL,
        HW_VAR_CONTENTION_WINDOW,
        HW_VAR_RETRY_COUNT,
        HW_VAR_TR_SWITCH,
        HW_VAR_COMMAND,                 // For Command Register, Annie, 2006-04-07.
        HW_VAR_WPA_CONFIG,              //2004/08/23, kcwu, for 8187 Security config
        HW_VAR_AMPDU_MIN_SPACE, // The spacing between sub-frame. Roger, 2008.07.04.
        HW_VAR_SHORTGI_DENSITY, // The density for shortGI. Roger, 2008.07.04.
        HW_VAR_AMPDU_FACTOR,
        HW_VAR_MCS_RATE_AVAILABLE,
        HW_VAR_AC_PARAM,                        // For AC Parameters, 2005.12.01, by rcnjko.
        HW_VAR_ACM_CTRL,                        // For ACM Control, Annie, 2005-12-13.
        HW_VAR_DIS_Req_Qsize,           // For DIS_Reg_Qsize, Joseph
        HW_VAR_CCX_CHNL_LOAD,           // For CCX 2 channel load request, 2006.05.04.
        HW_VAR_CCX_NOISE_HISTOGRAM,     // For CCX 2 noise histogram request, 2006.05.04.
        HW_VAR_CCX_CLM_NHM,                     // For CCX 2 parallel channel load request and noise histogram request, 2006.05.12.
        HW_VAR_TxOPLimit,                               // For turbo mode related settings, added by Roger, 2006.12.07
        HW_VAR_TURBO_MODE,                      // For turbo mode related settings, added by Roger, 2006.12.15.
        HW_VAR_RF_STATE,                        // For change or query RF power state, 061214, rcnjko.
        HW_VAR_RF_OFF_BY_HW,            // For UI to query if external HW signal disable RF, 061229, rcnjko.
        HW_VAR_BUS_SPEED,               // In unit of bps. 2006.07.03, by rcnjko.
        HW_VAR_SET_DEV_POWER,   // Set to low power, added by LanHsin, 2007.

        //1!!!!!!!!!!!!!!!!!!!!!!!!!!!
        //1Attention Please!!!<11n or 8190 specific code should be put below this line>
        //1!!!!!!!!!!!!!!!!!!!!!!!!!!!
        HW_VAR_RCR,                             //for RCR, David 2006,05,11
        HW_VAR_RATR_0,
        HW_VAR_RRSR,
        HW_VAR_CPU_RST,
        HW_VAR_CECHK_BSSID,
        HW_VAR_LBK_MODE,                        // Set lookback mode, 2008.06.11. added by Roger.
        // Set HW related setting for 11N AES bug.
        HW_VAR_AES_11N_FIX,
        // Set Usb Rx Aggregation
        HW_VAR_USB_RX_AGGR,
        HW_VAR_USER_CONTROL_TURBO_MODE,
        HW_VAR_RETRY_LIMIT,
#ifndef _RTL8192_EXT_PATCH_
        HW_VAR_INIT_TX_RATE,  //Get Current Tx rate register. 2008.12.10. Added by tynli
#endif
        HW_VAR_TX_RATE_REG,  //Get Current Tx rate register. 2008.12.10. Added by tynli

        HW_VAR_EFUSE_USAGE, //Get current EFUSE utilization. 2008.12.19. Added by Roger.
        HW_VAR_EFUSE_BYTES,
        HW_VAR_AUTOLOAD_STATUS, //Get current autoload status, 0: autoload success, 1: autoload fail. 2008.12.19. Added by Roger.
        HW_VAR_RF_2R_DISABLE, // 2R disable
        HW_VAR_SET_RPWM,
        HW_VAR_H2C_FW_PWRMODE, // For setting FW related H2C cmd structure. by tynli. 2009.2.18
        HW_VAR_H2C_FW_JOINBSSRPT, // For setting FW related H2C cmd structure. by tynli. 2009.2.18
        HW_VAR_1X1_RECV_COMBINE,        // For 1T2R but only 1SS, Add by hpfan 2009.04.16 hpfan
        HW_VAR_STOP_SEND_BEACON,
        HW_VAR_TSF_TIMER,                       // Read from TSF register to get the current TSF timer, by Bruce, 2009-07-22.
        HW_VAR_IO_CMD,
        HW_VAR_HANDLE_FW_C2H,           //Added by tynli. For handling FW C2H command. 2009.10.07.
        HW_VAR_DL_FW_RSVD_PAGE,                 //Added by tynli. Download the packets that FW will use to RSVD page. 2009.10.14.
        HW_VAR_AID,                             //Added by tynli.
        HW_VAR_HW_SEQ_ENABLE,           //Added by tynli. 2009.10.20.
        HW_VAR_UPDATE_TSF,                      //Added by tynli. 2009.10.22. For Hw count TBTT time.
        HW_VAR_BCN_VALID,                               //Added by tynli.
        HW_VAR_FWLPS_RF_ON                      //Added by tynli. 2009.11.09. For checking if Fw finishs RF on sequence.
}HW_VARIABLES;

#define RT_CHECK_FOR_HANG_PERIOD 2

struct ieee80211_device {
        struct net_device *dev;
        struct ieee80211_security sec;

        bool    need_sw_enc;
#ifdef ENABLE_LPS
        bool bAwakePktSent;
        u8  LPSDelayCnt;
        bool bIsAggregateFrame;
        bool polling;
        void (*LeisurePSLeave)(struct net_device *dev);
#endif

#ifdef ENABLE_IPS
        bool proto_stoppping;
        bool wx_set_enc;
        struct semaphore ips_sem;
        struct work_struct ips_leave_wq;
        void (*ieee80211_ips_leave_wq) (struct net_device *dev);
        void (*ieee80211_ips_leave)(struct net_device *dev);
#endif
        void (*SetHwRegHandler)(struct net_device *dev,u8 variable,u8* val);
        u8   (*rtllib_ap_sec_type)(struct ieee80211_device *ieee);

        //hw security related
//      u8 hwsec_support; //support?
        u8 hwsec_active;  //hw security active.
        bool is_silent_reset;
        bool is_roaming;
        bool ieee_up;
        //added by amy
        bool bSupportRemoteWakeUp;
        RT_PS_MODE      dot11PowerSaveMode; // Power save mode configured.
        bool actscanning;
        bool beinretry;
        RT_RF_POWER_STATE               eRFPowerState;
        RT_RF_CHANGE_SOURCE     RfOffReason;
        bool is_set_key;
        //11n spec related I wonder if These info structure need to be moved out of ieee80211_device

        //11n HT below
        PRT_HIGH_THROUGHPUT     pHTInfo;
        //struct timer_list             SwBwTimer;
//      spinlock_t chnlop_spinlock;
        spinlock_t bw_spinlock;

        spinlock_t reorder_spinlock;
        // for HT operation rate set.  we use this one for HT data rate to separate different descriptors
        //the way fill this is the same as in the IE
        u8      Regdot11HTOperationalRateSet[16];               //use RATR format
        u8      dot11HTOperationalRateSet[16];          //use RATR format
        u8      RegHTSuppRateSet[16];
        u8                              HTCurrentOperaRate;
        u8                              HTHighestOperaRate;
        //wb added for rate operation mode to firmware
        u8      bTxDisableRateFallBack;
        u8      bTxUseDriverAssingedRate;
        atomic_t        atm_chnlop;
        atomic_t        atm_swbw;
//      u8      HTHighestOperaRate;
//      u8      HTCurrentOperaRate;

        // 802.11e and WMM Traffic Stream Info (TX)
        struct list_head                Tx_TS_Admit_List;
        struct list_head                Tx_TS_Pending_List;
        struct list_head                Tx_TS_Unused_List;
        TX_TS_RECORD            TxTsRecord[TOTAL_TS_NUM];
        // 802.11e and WMM Traffic Stream Info (RX)
        struct list_head                Rx_TS_Admit_List;
        struct list_head                Rx_TS_Pending_List;
        struct list_head                Rx_TS_Unused_List;
        RX_TS_RECORD            RxTsRecord[TOTAL_TS_NUM];
//#ifdef TO_DO_LIST
        RX_REORDER_ENTRY        RxReorderEntry[128];
        struct list_head                RxReorder_Unused_List;
//#endif
        // Qos related. Added by Annie, 2005-11-01.
//      PSTA_QOS                        pStaQos;
        u8                              ForcedPriority;         // Force per-packet priority 1~7. (default: 0, not to force it.)


        /* Bookkeeping structures */
        struct net_device_stats stats;
        struct ieee80211_stats ieee_stats;
        struct ieee80211_softmac_stats softmac_stats;

        /* Probe / Beacon management */
        struct list_head network_free_list;
        struct list_head network_list;
        struct ieee80211_network *networks;
        int scans;
        int scan_age;

        int iw_mode; /* operating mode (IW_MODE_*) */
        struct iw_spy_data spy_data;

        spinlock_t lock;
        spinlock_t wpax_suitlist_lock;

        int tx_headroom; /* Set to size of any additional room needed at front
                          * of allocated Tx SKBs */
        u32 config;

        /* WEP and other encryption related settings at the device level */
        int open_wep; /* Set to 1 to allow unencrypted frames */
        int auth_mode;
        int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
                                 * WEP key changes */

        /* If the host performs {en,de}cryption, then set to 1 */
        int host_encrypt;
        int host_encrypt_msdu;
        int host_decrypt;
        /* host performs multicast decryption */
        int host_mc_decrypt;

        /* host should strip IV and ICV from protected frames */
        /* meaningful only when hardware decryption is being used */
        int host_strip_iv_icv;

        int host_open_frag;
        int host_build_iv;
        int ieee802_1x; /* is IEEE 802.1X used */

        /* WPA data */
        bool bHalfWirelessN24GMode;
        int wpa_enabled;
        int drop_unencrypted;
        int tkip_countermeasures;
        int privacy_invoked;
        size_t wpa_ie_len;
        u8 *wpa_ie;
        u8 ap_mac_addr[6];
        u16 pairwise_key_type;
        u16 group_key_type;
        struct list_head crypt_deinit_list;
        struct ieee80211_crypt_data *crypt[WEP_KEYS];
        int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */
        struct timer_list crypt_deinit_timer;
        int crypt_quiesced;

        int bcrx_sta_key; /* use individual keys to override default keys even
                           * with RX of broad/multicast frames */

        /* Fragmentation structures */
        // each streaming contain a entry
        struct ieee80211_frag_entry frag_cache[17][IEEE80211_FRAG_CACHE_LEN];
        unsigned int frag_next_idx[17];
        u16 fts; /* Fragmentation Threshold */
#define DEFAULT_RTS_THRESHOLD 2346U
#define MIN_RTS_THRESHOLD 1
#define MAX_RTS_THRESHOLD 2346U
        u16 rts; /* RTS threshold */

        /* Association info */
        u8 bssid[ETH_ALEN];

        /* This stores infos for the current network.
         * Either the network we are associated in INFRASTRUCTURE
         * or the network that we are creating in MASTER mode.
         * ad-hoc is a mixture ;-).
         * Note that in infrastructure mode, even when not associated,
         * fields bssid and essid may be valid (if wpa_set and essid_set
         * are true) as thy carry the value set by the user via iwconfig
         */
        struct ieee80211_network current_network;

        enum ieee80211_state state;

        int short_slot;
        int reg_mode;
        int mode;       /* A, B, G */
        int modulation; /* CCK, OFDM */
        int freq_band;  /* 2.4Ghz, 5.2Ghz, Mixed */
        int abg_true;   /* ABG flag              */

        /* used for forcing the ibss workqueue to terminate
         * without wait for the syncro scan to terminate
         */
        short sync_scan_hurryup;

        int perfect_rssi;
        int worst_rssi;

        u16 prev_seq_ctl;       /* used to drop duplicate frames */

        /* map of allowed channels. 0 is dummy */
        // FIXME: remeber to default to a basic channel plan depending of the PHY type
#ifdef ENABLE_DOT11D
        void* pDot11dInfo;
        bool bGlobalDomain;
#else
        int channel_map[MAX_CHANNEL_NUMBER+1];
#endif
        int rate;       /* current rate */
        int basic_rate;
        //FIXME: pleace callback, see if redundant with softmac_features
        short active_scan;

        /* this contains flags for selectively enable softmac support */
        u16 softmac_features;

        /* if the sequence control field is not filled by HW */
        u16 seq_ctrl[5];

        /* association procedure transaction sequence number */
        u16 associate_seq;

        /* AID for RTXed association responses */
        u16 assoc_id;

        /* power save mode related*/
        u8 ack_tx_to_ieee;
        short ps;
        short sta_sleep;
        int ps_timeout;
        int ps_period;
        struct tasklet_struct ps_task;
        u32 ps_th;
        u32 ps_tl;

        short raw_tx;
        /* used if IEEE_SOFTMAC_TX_QUEUE is set */
        short queue_stop;
        short scanning;
        short proto_started;

        struct semaphore wx_sem;
        struct semaphore scan_sem;

        spinlock_t mgmt_tx_lock;
        spinlock_t beacon_lock;

        short beacon_txing;

        short wap_set;
        short ssid_set;

        u8  wpax_type_set;    //{added by David, 2006.9.28}
        u32 wpax_type_notify; //{added by David, 2006.9.26}

        /* QoS related flag */
        char init_wmmparam_flag;
        /* set on initialization */
        u8  qos_support;

        /* for discarding duplicated packets in IBSS */
        struct list_head ibss_mac_hash[IEEE_IBSS_MAC_HASH_SIZE];

        /* for discarding duplicated packets in BSS */
        u16 last_rxseq_num[17]; /* rx seq previous per-tid */
        u16 last_rxfrag_num[17];/* tx frag previous per-tid */
        unsigned long last_packet_time[17];

        /* for PS mode */
        unsigned long last_rx_ps_time;

        /* used if IEEE_SOFTMAC_SINGLE_QUEUE is set */
        struct sk_buff *mgmt_queue_ring[MGMT_QUEUE_NUM];
        int mgmt_queue_head;
        int mgmt_queue_tail;
//{ added for rtl819x
#define IEEE80211_QUEUE_LIMIT 128
        u8 AsocRetryCount;
        unsigned int hw_header;
        struct sk_buff_head skb_waitQ[MAX_QUEUE_SIZE];
        struct sk_buff_head  skb_aggQ[MAX_QUEUE_SIZE];
        struct sk_buff_head  skb_drv_aggQ[MAX_QUEUE_SIZE];
        u32     sta_edca_param[4];
        bool aggregation;
        // Enable/Disable Rx immediate BA capability.
        bool enable_rx_imm_BA;
        bool bibsscoordinator;

        //+by amy for DM ,080515
        //Dynamic Tx power for near/far range enable/Disable  , by amy , 2008-05-15
        bool    bdynamic_txpower_enable;

        bool bCTSToSelfEnable;
        u8      CTSToSelfTH;

        u32     fsync_time_interval;
        u32     fsync_rate_bitmap;
        u8      fsync_rssi_threshold;
        bool    bfsync_enable;

        u8      fsync_multiple_timeinterval;            // FsyncMultipleTimeInterval * FsyncTimeInterval
        u32     fsync_firstdiff_ratethreshold;          // low threshold
        u32     fsync_seconddiff_ratethreshold;  // decrease threshold
        Fsync_State                     fsync_state;
        bool            bis_any_nonbepkts;
        //20Mhz 40Mhz AutoSwitch Threshold
        bandwidth_autoswitch bandwidth_auto_switch;
        //for txpower tracking
        bool FwRWRF;

        //added by amy for AP roaming
        RT_LINK_DETECT_T        LinkDetectInfo;
        //added by amy for ps
        RT_POWER_SAVE_CONTROL   PowerSaveControl;
//}
        /* used if IEEE_SOFTMAC_TX_QUEUE is set */
        struct  tx_pending_t tx_pending;

        /* used if IEEE_SOFTMAC_ASSOCIATE is set */
        struct timer_list associate_timer;

        /* used if IEEE_SOFTMAC_BEACONS is set */
        struct timer_list beacon_timer;
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
        struct work_struct associate_complete_wq;
        struct work_struct associate_procedure_wq;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
        struct delayed_work softmac_scan_wq;
        struct delayed_work associate_retry_wq;
         struct delayed_work start_ibss_wq;
         struct delayed_work hw_wakeup_wq;
        struct delayed_work hw_sleep_wq;
#else
        struct work_struct softmac_scan_wq;
        struct work_struct associate_retry_wq;
        struct work_struct start_ibss_wq;
        struct work_struct hw_wakeup_wq;
        struct work_struct hw_sleep_wq;
#endif
        struct work_struct wx_sync_scan_wq;
        struct workqueue_struct *wq;
#else
        /* used for periodly scan */
        struct timer_list scan_timer;

        struct tq_struct associate_complete_wq;
        struct tq_struct associate_retry_wq;
        struct tq_struct start_ibss_wq;
        struct tq_struct associate_procedure_wq;
        struct tq_struct softmac_scan_wq;
        struct tq_struct wx_sync_scan_wq;

#endif
        // Qos related. Added by Annie, 2005-11-01.
        //STA_QOS  StaQos;

        //u32 STA_EDCA_PARAM[4];
        //CHANNEL_ACCESS_SETTING ChannelAccessSetting;


        /* Callback functions */
        void (*set_security)(struct net_device *dev,
                             struct ieee80211_security *sec);

        /* Used to TX data frame by using txb structs.
         * this is not used if in the softmac_features
         * is set the flag IEEE_SOFTMAC_TX_QUEUE
         */
        int (*hard_start_xmit)(struct ieee80211_txb *txb,
                               struct net_device *dev);

        int (*reset_port)(struct net_device *dev);
        int (*is_queue_full) (struct net_device * dev, int pri);

        int (*handle_management) (struct net_device * dev,
                                  struct ieee80211_network * network, u16 type);
        int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);

        /* Softmac-generated frames (mamagement) are TXed via this
         * callback if the flag IEEE_SOFTMAC_SINGLE_QUEUE is
         * not set. As some cards may have different HW queues that
         * one might want to use for data and management frames
         * the option to have two callbacks might be useful.
         * This fucntion can't sleep.
         */
        int (*softmac_hard_start_xmit)(struct sk_buff *skb,
                               struct net_device *dev);

        /* used instead of hard_start_xmit (not softmac_hard_start_xmit)
         * if the IEEE_SOFTMAC_TX_QUEUE feature is used to TX data
         * frames. I the option IEEE_SOFTMAC_SINGLE_QUEUE is also set
         * then also management frames are sent via this callback.
         * This function can't sleep.
         */
        void (*softmac_data_hard_start_xmit)(struct sk_buff *skb,
                               struct net_device *dev,int rate);

        /* stops the HW queue for DATA frames. Useful to avoid
         * waste time to TX data frame when we are reassociating
         * This function can sleep.
         */
        void (*data_hard_stop)(struct net_device *dev);

        /* OK this is complementar to data_poll_hard_stop */
        void (*data_hard_resume)(struct net_device *dev);

        /* ask to the driver to retune the radio .
         * This function can sleep. the driver should ensure
         * the radio has been swithced before return.
         */
        void (*set_chan)(struct net_device *dev,short ch);

        /* These are not used if the ieee stack takes care of
         * scanning (IEEE_SOFTMAC_SCAN feature set).
         * In this case only the set_chan is used.
         *
         * The syncro version is similar to the start_scan but
         * does not return until all channels has been scanned.
         * this is called in user context and should sleep,
         * it is called in a work_queue when swithcing to ad-hoc mode
         * or in behalf of iwlist scan when the card is associated
         * and root user ask for a scan.
         * the fucntion stop_scan should stop both the syncro and
         * background scanning and can sleep.
         * The fucntion start_scan should initiate the background
         * scanning and can't sleep.
         */
        void (*scan_syncro)(struct net_device *dev);
        void (*start_scan)(struct net_device *dev);
        void (*stop_scan)(struct net_device *dev);

        /* indicate the driver that the link state is changed
         * for example it may indicate the card is associated now.
         * Driver might be interested in this to apply RX filter
         * rules or simply light the LINK led
         */
        void (*link_change)(struct net_device *dev);

        /* these two function indicates to the HW when to start
         * and stop to send beacons. This is used when the
         * IEEE_SOFTMAC_BEACONS is not set. For now the
         * stop_send_bacons is NOT guaranteed to be called only
         * after start_send_beacons.
         */
        void (*start_send_beacons) (struct net_device *dev);
        void (*stop_send_beacons) (struct net_device *dev);

        /* power save mode related */
        void (*sta_wake_up) (struct net_device *dev);
//      void (*ps_request_tx_ack) (struct net_device *dev);
        void (*enter_sleep_state) (struct net_device *dev, u32 th, u32 tl);
        short (*ps_is_queue_empty) (struct net_device *dev);
#if 0
        /* Typical STA methods */
        int (*handle_auth) (struct net_device * dev,
                            struct ieee80211_auth * auth);
        int (*handle_deauth) (struct net_device * dev,
                              struct ieee80211_deauth * auth);
        int (*handle_action) (struct net_device * dev,
                              struct ieee80211_action * action,
                              struct ieee80211_rx_stats * stats);
        int (*handle_disassoc) (struct net_device * dev,
                                struct ieee80211_disassoc * assoc);
#endif
        int (*handle_beacon) (struct net_device * dev, struct ieee80211_beacon * beacon, struct ieee80211_network * network);
#if 0
        int (*handle_probe_response) (struct net_device * dev,
                                      struct ieee80211_probe_response * resp,
                                      struct ieee80211_network * network);
        int (*handle_probe_request) (struct net_device * dev,
                                     struct ieee80211_probe_request * req,
                                     struct ieee80211_rx_stats * stats);
#endif
        int (*handle_assoc_response) (struct net_device * dev, struct ieee80211_assoc_response_frame * resp, struct ieee80211_network * network);

#if 0
        /* Typical AP methods */
        int (*handle_assoc_request) (struct net_device * dev);
        int (*handle_reassoc_request) (struct net_device * dev,
                                       struct ieee80211_reassoc_request * req);
#endif

        /* check whether Tx hw resouce available */
        short (*check_nic_enough_desc)(struct net_device *dev, int queue_index);
        //added by wb for HT related
//      void (*SwChnlByTimerHandler)(struct net_device *dev, int channel);
        void (*SetBWModeHandler)(struct net_device *dev, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset);
//      void (*UpdateHalRATRTableHandler)(struct net_device* dev, u8* pMcsRate);
        bool (*GetNmodeSupportBySecCfg)(struct net_device* dev);
        void (*SetWirelessMode)(struct net_device* dev, u8 wireless_mode);
        bool (*GetHalfNmodeSupportByAPsHandler)(struct net_device* dev);
        void (*InitialGainHandler)(struct net_device *dev, u8 Operation);

        /* This must be the last item so that it points to the data
         * allocated beyond this structure by alloc_ieee80211 */
        u8 priv[0];
};

#define RT_RF_OFF_LEVL_ASPM                     BIT0    // PCI ASPM
#define RT_RF_OFF_LEVL_CLK_REQ          BIT1    // PCI clock request
#define RT_RF_OFF_LEVL_PCI_D3                   BIT2    // PCI D3 mode
#define RT_RF_OFF_LEVL_HALT_NIC         BIT3    // NIC halt, re-initialize hw parameters
#define RT_RF_OFF_LEVL_FREE_FW          BIT4    // FW free, re-download the FW
#define RT_RF_OFF_LEVL_FW_32K           BIT5    // FW in 32k
#define RT_RF_PS_LEVEL_ALWAYS_ASPM      BIT6    // Always enable ASPM and Clock Req in initialization.
#define RT_RF_LPS_DISALBE_2R                    BIT30   // When LPS is on, disable 2R if no packet is received or transmittd.
#define RT_RF_LPS_LEVEL_ASPM                    BIT31   // LPS with ASPM
#define RT_IN_PS_LEVEL(pPSC, _PS_FLAG)  ((pPSC->CurPsLevel & _PS_FLAG) ? true : false)
#define RT_CLEAR_PS_LEVEL(pPSC, _PS_FLAG)       (pPSC->CurPsLevel &= (~(_PS_FLAG)))
#define RT_SET_PS_LEVEL(pPSC, _PS_FLAG) (pPSC->CurPsLevel |= _PS_FLAG)

#define IEEE_A            (1<<0)
#define IEEE_B            (1<<1)
#define IEEE_G            (1<<2)
#define IEEE_N_24G                (1<<4)
#define IEEE_N_5G                 (1<<5)
#define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)

/* Generate a 802.11 header */

/* Uses the channel change callback directly
 * instead of [start/stop] scan callbacks
 */
#define IEEE_SOFTMAC_SCAN (1<<2)

/* Perform authentication and association handshake */
#define IEEE_SOFTMAC_ASSOCIATE (1<<3)

/* Generate probe requests */
#define IEEE_SOFTMAC_PROBERQ (1<<4)

/* Generate respones to probe requests */
#define IEEE_SOFTMAC_PROBERS (1<<5)

/* The ieee802.11 stack will manages the netif queue
 * wake/stop for the driver, taking care of 802.11
 * fragmentation. See softmac.c for details. */
#define IEEE_SOFTMAC_TX_QUEUE (1<<7)

/* Uses only the softmac_data_hard_start_xmit
 * even for TX management frames.
 */
#define IEEE_SOFTMAC_SINGLE_QUEUE (1<<8)

/* Generate beacons.  The stack will enqueue beacons
 * to the card
 */
#define IEEE_SOFTMAC_BEACONS (1<<6)

static inline void *ieee80211_priv(struct net_device *dev)
{
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
        return ((struct ieee80211_device *)netdev_priv(dev))->priv;
#else
        return ((struct ieee80211_device *)dev->priv)->priv;
#endif
}

extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
{
        /* Single white space is for Linksys APs */
        if (essid_len == 1 && essid[0] == ' ')
                return 1;

        /* Otherwise, if the entire essid is 0, we assume it is hidden */
        while (essid_len) {
                essid_len--;
                if (essid[essid_len] != '\0')
                        return 0;
        }

        return 1;
}

extern inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee, int mode)
{
        /*
         * It is possible for both access points and our device to support
         * combinations of modes, so as long as there is one valid combination
         * of ap/device supported modes, then return success
         *
         */
        if ((mode & IEEE_A) &&
            (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
            (ieee->freq_band & IEEE80211_52GHZ_BAND))
                return 1;

        if ((mode & IEEE_G) &&
            (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
            (ieee->freq_band & IEEE80211_24GHZ_BAND))
                return 1;

        if ((mode & IEEE_B) &&
            (ieee->modulation & IEEE80211_CCK_MODULATION) &&
            (ieee->freq_band & IEEE80211_24GHZ_BAND))
                return 1;

        return 0;
}

extern inline int ieee80211_get_hdrlen(u16 fc)
{
        int hdrlen = IEEE80211_3ADDR_LEN;

        switch (WLAN_FC_GET_TYPE(fc)) {
        case IEEE80211_FTYPE_DATA:
                if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
                        hdrlen = IEEE80211_4ADDR_LEN; /* Addr4 */
                if(IEEE80211_QOS_HAS_SEQ(fc))
                        hdrlen += 2; /* QOS ctrl*/
                break;
        case IEEE80211_FTYPE_CTL:
                switch (WLAN_FC_GET_STYPE(fc)) {
                case IEEE80211_STYPE_CTS:
                case IEEE80211_STYPE_ACK:
                        hdrlen = IEEE80211_1ADDR_LEN;
                        break;
                default:
                        hdrlen = IEEE80211_2ADDR_LEN;
                        break;
                }
                break;
        }

        return hdrlen;
}

static inline u8 *ieee80211_get_payload(struct ieee80211_hdr *hdr)
{
        switch (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl))) {
        case IEEE80211_1ADDR_LEN:
                return ((struct ieee80211_hdr_1addr *)hdr)->payload;
        case IEEE80211_2ADDR_LEN:
                return ((struct ieee80211_hdr_2addr *)hdr)->payload;
        case IEEE80211_3ADDR_LEN:
                return ((struct ieee80211_hdr_3addr *)hdr)->payload;
        case IEEE80211_4ADDR_LEN:
                return ((struct ieee80211_hdr_4addr *)hdr)->payload;
        }
        return NULL;
}

static inline int ieee80211_is_ofdm_rate(u8 rate)
{
        switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
        case IEEE80211_OFDM_RATE_6MB:
        case IEEE80211_OFDM_RATE_9MB:
        case IEEE80211_OFDM_RATE_12MB:
        case IEEE80211_OFDM_RATE_18MB:
        case IEEE80211_OFDM_RATE_24MB:
        case IEEE80211_OFDM_RATE_36MB:
        case IEEE80211_OFDM_RATE_48MB:
        case IEEE80211_OFDM_RATE_54MB:
                return 1;
        }
        return 0;
}

static inline int ieee80211_is_cck_rate(u8 rate)
{
        switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
        case IEEE80211_CCK_RATE_1MB:
        case IEEE80211_CCK_RATE_2MB:
        case IEEE80211_CCK_RATE_5MB:
        case IEEE80211_CCK_RATE_11MB:
                return 1;
        }
        return 0;
}


/* ieee80211.c */
extern void free_ieee80211(struct net_device *dev);
extern struct net_device *alloc_ieee80211(int sizeof_priv);

extern int ieee80211_set_encryption(struct ieee80211_device *ieee);

/* ieee80211_tx.c */

extern int ieee80211_encrypt_fragment(
        struct ieee80211_device *ieee,
        struct sk_buff *frag,
        int hdr_len);

extern int ieee80211_rtl_xmit(struct sk_buff *skb,
                          struct net_device *dev);
extern void ieee80211_txb_free(struct ieee80211_txb *);


/* ieee80211_rx.c */
extern int ieee80211_rtl_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
                        struct ieee80211_rx_stats *rx_stats);
extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
                             struct ieee80211_hdr_4addr *header,
                             struct ieee80211_rx_stats *stats);

/* ieee80211_wx.c */
extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
                                 struct iw_request_info *info,
                                 union iwreq_data *wrqu, char *key);
extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
                                   struct iw_request_info *info,
                                   union iwreq_data *wrqu, char *key);
extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
                                   struct iw_request_info *info,
                                   union iwreq_data *wrqu, char *key);
#if WIRELESS_EXT >= 18
extern int ieee80211_wx_get_encode_ext(struct ieee80211_device *ieee,
                            struct iw_request_info *info,
                            union iwreq_data* wrqu, char *extra);
extern int ieee80211_wx_set_encode_ext(struct ieee80211_device *ieee,
                            struct iw_request_info *info,
                            union iwreq_data* wrqu, char *extra);
extern int ieee80211_wx_set_auth(struct ieee80211_device *ieee,
                               struct iw_request_info *info,
                               struct iw_param *data, char *extra);
extern int ieee80211_wx_set_mlme(struct ieee80211_device *ieee,
                               struct iw_request_info *info,
                               union iwreq_data *wrqu, char *extra);
#endif
extern int ieee80211_wx_set_gen_ie(struct ieee80211_device *ieee, u8 *ie, size_t len);

/* ieee80211_softmac.c */
extern short ieee80211_is_54g(struct ieee80211_network net);
extern short ieee80211_is_shortslot(struct ieee80211_network net);
extern int ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
                        struct ieee80211_rx_stats *rx_stats, u16 type,
                        u16 stype);
extern void ieee80211_softmac_new_net(struct ieee80211_device *ieee, struct ieee80211_network *net);

void SendDisassociation(struct ieee80211_device *ieee, u8* asSta, u8 asRsn);
extern void ieee80211_softmac_xmit(struct ieee80211_txb *txb, struct ieee80211_device *ieee);

extern void ieee80211_stop_send_beacons(struct ieee80211_device *ieee);
extern void notify_wx_assoc_event(struct ieee80211_device *ieee);
extern void ieee80211_softmac_check_all_nets(struct ieee80211_device *ieee);
extern void ieee80211_start_bss(struct ieee80211_device *ieee);
extern void ieee80211_start_master_bss(struct ieee80211_device *ieee);
extern void ieee80211_start_ibss(struct ieee80211_device *ieee);
extern void ieee80211_softmac_init(struct ieee80211_device *ieee);
extern void ieee80211_softmac_free(struct ieee80211_device *ieee);
extern void ieee80211_associate_abort(struct ieee80211_device *ieee);
extern void ieee80211_disassociate(struct ieee80211_device *ieee);
extern void ieee80211_stop_scan(struct ieee80211_device *ieee);
extern void ieee80211_start_scan_syncro(struct ieee80211_device *ieee);
extern void ieee80211_check_all_nets(struct ieee80211_device *ieee);
extern void ieee80211_start_protocol(struct ieee80211_device *ieee);
extern void ieee80211_stop_protocol(struct ieee80211_device *ieee,u8 shutdown);
extern void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee);
extern void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee,u8 shutdown);
extern void ieee80211_reset_queue(struct ieee80211_device *ieee);
extern void ieee80211_rtl_wake_queue(struct ieee80211_device *ieee);
extern void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee);
extern struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee);
extern void ieee80211_start_send_beacons(struct ieee80211_device *ieee);
extern void ieee80211_stop_send_beacons(struct ieee80211_device *ieee);
extern int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_point *p);
extern void notify_wx_assoc_event(struct ieee80211_device *ieee);
extern void ieee80211_ps_tx_ack(struct ieee80211_device *ieee, short success);

extern void softmac_mgmt_xmit(struct sk_buff *skb, struct ieee80211_device *ieee);

/* ieee80211_crypt_ccmp&tkip&wep.c */
extern void ieee80211_tkip_null(void);
extern void ieee80211_wep_null(void);
extern void ieee80211_ccmp_null(void);

/* ieee80211_softmac_wx.c */

extern int ieee80211_wx_get_wap(struct ieee80211_device *ieee,
                            struct iw_request_info *info,
                            union iwreq_data *wrqu, char *ext);

extern int ieee80211_wx_set_wap(struct ieee80211_device *ieee,
                         struct iw_request_info *info,
                         union iwreq_data *awrq,
                         char *extra);

extern int ieee80211_wx_get_essid(struct ieee80211_device *ieee, struct iw_request_info *a,union iwreq_data *wrqu,char *b);

extern int ieee80211_wx_set_rate(struct ieee80211_device *ieee,
                             struct iw_request_info *info,
                             union iwreq_data *wrqu, char *extra);

extern int ieee80211_wx_get_rate(struct ieee80211_device *ieee,
                             struct iw_request_info *info,
                             union iwreq_data *wrqu, char *extra);

extern int ieee80211_wx_set_mode(struct ieee80211_device *ieee, struct iw_request_info *a,
                             union iwreq_data *wrqu, char *b);

extern int ieee80211_wx_set_scan(struct ieee80211_device *ieee, struct iw_request_info *a,
                             union iwreq_data *wrqu, char *b);

extern int ieee80211_wx_set_essid(struct ieee80211_device *ieee,
                              struct iw_request_info *a,
                              union iwreq_data *wrqu, char *extra);

extern int ieee80211_wx_get_mode(struct ieee80211_device *ieee, struct iw_request_info *a,
                             union iwreq_data *wrqu, char *b);

extern int ieee80211_wx_set_freq(struct ieee80211_device *ieee, struct iw_request_info *a,
                             union iwreq_data *wrqu, char *b);

extern int ieee80211_wx_get_freq(struct ieee80211_device *ieee, struct iw_request_info *a,
                             union iwreq_data *wrqu, char *b);

//extern void ieee80211_wx_sync_scan_wq(struct ieee80211_device *ieee);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
extern void ieee80211_wx_sync_scan_wq(struct work_struct *work);
#else
 extern void ieee80211_wx_sync_scan_wq(struct ieee80211_device *ieee);
#endif


extern int ieee80211_wx_set_rawtx(struct ieee80211_device *ieee,
                               struct iw_request_info *info,
                               union iwreq_data *wrqu, char *extra);

extern int ieee80211_wx_get_name(struct ieee80211_device *ieee,
                             struct iw_request_info *info,
                             union iwreq_data *wrqu, char *extra);

extern int ieee80211_wx_set_power(struct ieee80211_device *ieee,
                                 struct iw_request_info *info,
                                 union iwreq_data *wrqu, char *extra);

extern int ieee80211_wx_get_power(struct ieee80211_device *ieee,
                                 struct iw_request_info *info,
                                 union iwreq_data *wrqu, char *extra);

extern int ieee80211_wx_set_rts(struct ieee80211_device *ieee,
                             struct iw_request_info *info,
                             union iwreq_data *wrqu, char *extra);

extern int ieee80211_wx_get_rts(struct ieee80211_device *ieee,
                             struct iw_request_info *info,
                             union iwreq_data *wrqu, char *extra);
//HT
#define MAX_RECEIVE_BUFFER_SIZE 9100  //
extern void HTDebugHTCapability(u8* CapIE, u8* TitleString );
extern void HTDebugHTInfo(u8*  InfoIE, u8* TitleString);

void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET    Offset);
extern void HTUpdateDefaultSetting(struct ieee80211_device* ieee);
extern void HTConstructCapabilityElement(struct ieee80211_device* ieee, u8* posHTCap, u8* len, u8 isEncrypt);
extern void HTConstructInfoElement(struct ieee80211_device* ieee, u8* posHTInfo, u8* len, u8 isEncrypt);
extern void HTConstructRT2RTAggElement(struct ieee80211_device* ieee, u8* posRT2RTAgg, u8* len);
extern void HTOnAssocRsp(struct ieee80211_device *ieee);
extern void HTInitializeHTInfo(struct ieee80211_device* ieee);
extern void HTInitializeBssDesc(PBSS_HT pBssHT);
extern void HTResetSelfAndSavePeerSetting(struct ieee80211_device* ieee, struct ieee80211_network * pNetwork);
extern void HTUpdateSelfAndPeerSetting(struct ieee80211_device* ieee,   struct ieee80211_network * pNetwork);
extern u8 HTGetHighestMCSRate(struct ieee80211_device* ieee, u8* pMCSRateSet, u8* pMCSFilter);
extern u8 MCS_FILTER_ALL[];
extern u16 MCS_DATA_RATE[2][2][77] ;
extern u8 HTCCheck(struct ieee80211_device* ieee, u8*   pFrame);
//extern void HTSetConnectBwModeCallback(unsigned long data);
extern void HTResetIOTSetting(PRT_HIGH_THROUGHPUT  pHTInfo);
extern bool IsHTHalfNmodeAPs(struct ieee80211_device* ieee);
extern u16 HTHalfMcsToDataRate(struct ieee80211_device* ieee,  u8      nMcsRate);
extern u16 HTMcsToDataRate( struct ieee80211_device* ieee, u8 nMcsRate);
extern u16  TxCountToDataRate( struct ieee80211_device* ieee, u8 nDataRate);
//function in BAPROC.c
extern int ieee80211_rx_ADDBAReq( struct ieee80211_device* ieee, struct sk_buff *skb);
extern int ieee80211_rx_ADDBARsp( struct ieee80211_device* ieee, struct sk_buff *skb);
extern int ieee80211_rx_DELBA(struct ieee80211_device* ieee,struct sk_buff *skb);
extern void TsInitAddBA( struct ieee80211_device* ieee, PTX_TS_RECORD   pTS, u8 Policy, u8 bOverwritePending);
extern void TsInitDelBA( struct ieee80211_device* ieee, PTS_COMMON_INFO pTsCommonInfo, TR_SELECT TxRxSelect);
extern void BaSetupTimeOut(unsigned long data);
extern void TxBaInactTimeout(unsigned long data);
extern void RxBaInactTimeout(unsigned long data);
extern void ResetBaEntry( PBA_RECORD pBA);
//function in TS.c
extern bool GetTs(
        struct ieee80211_device*        ieee,
        PTS_COMMON_INFO                 *ppTS,
        u8*                             Addr,
        u8                              TID,
        TR_SELECT                       TxRxSelect,  //Rx:1, Tx:0
        bool                            bAddNewTs
        );
extern void TSInitialize(struct ieee80211_device *ieee);
extern  void TsStartAddBaProcess(struct ieee80211_device* ieee, PTX_TS_RECORD   pTxTS);
extern void RemovePeerTS(struct ieee80211_device* ieee, u8* Addr);
extern void RemoveAllTS(struct ieee80211_device* ieee);
void ieee80211_softmac_scan_syncro(struct ieee80211_device *ieee);

extern const long ieee80211_wlan_frequencies[];

extern inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
{
        ieee->scans++;
}

extern inline int ieee80211_get_scans(struct ieee80211_device *ieee)
{
        return ieee->scans;
}

static inline const char *escape_essid(const char *essid, u8 essid_len) {
        static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
        const char *s = essid;
        char *d = escaped;

        if (ieee80211_is_empty_essid(essid, essid_len)) {
                memcpy(escaped, "<hidden>", sizeof("<hidden>"));
                return escaped;
        }

        essid_len = min(essid_len, (u8)IW_ESSID_MAX_SIZE);
        while (essid_len--) {
                if (*s == '\0') {
                        *d++ = '\\';
                        *d++ = '0';
                        s++;
                } else {
                        *d++ = *s++;
                }
        }
        *d = '\0';
        return escaped;
}

/* For the function is more related to hardware setting, it's better to use the
 * ieee handler to refer to it.
 */
extern short check_nic_enough_desc(struct net_device *dev, int queue_index);
extern int ieee80211_data_xmit(struct sk_buff *skb, struct net_device *dev);
extern int ieee80211_parse_info_param(struct ieee80211_device *ieee,
                struct ieee80211_info_element *info_element,
                u16 length,
                struct ieee80211_network *network,
                struct ieee80211_rx_stats *stats);

void ieee80211_indicate_packets(struct ieee80211_device *ieee, struct ieee80211_rxb** prxbIndicateArray,u8  index);
void ieee80211_sta_ps_send_null_frame(struct ieee80211_device *ieee, short pwr);
void ieee80211_sta_ps_send_pspoll_frame(struct ieee80211_device *ieee);
#define RT_ASOC_RETRY_LIMIT     5
#endif /* IEEE80211_H */