Added missing tegra files.HEADmaster

5 files changed, 1383 insertions, 0 deletions

diff --git a/drivers/staging/ath6kl/wlan/include/ieee80211.h b/drivers/staging/ath6kl/wlan/include/ieee80211.h
new file mode 100644
index 00000000000..cf47d0657e7
--- /dev/null
+++ b/drivers/staging/ath6kl/wlan/include/ieee80211.h
@@ -0,0 +1,397 @@
+//------------------------------------------------------------------------------
+// <copyright file="ieee80211.h" company="Atheros">
+//    Copyright (c) 2004-2010 Atheros Corporation.  All rights reserved.
+// 
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+//
+//
+//------------------------------------------------------------------------------
+//==============================================================================
+// Author(s): ="Atheros"
+//==============================================================================
+#ifndef _NET80211_IEEE80211_H_
+#define _NET80211_IEEE80211_H_
+
+/*
+ * 802.11 protocol definitions.
+ */
+#define IEEE80211_WEP_KEYLEN        5   /* 40bit */
+#define IEEE80211_WEP_IVLEN         3   /* 24bit */
+#define IEEE80211_WEP_KIDLEN        1   /* 1 octet */
+#define IEEE80211_WEP_CRCLEN        4   /* CRC-32 */
+#define IEEE80211_WEP_NKID          4   /* number of key ids */
+
+/*
+ * 802.11i defines an extended IV for use with non-WEP ciphers.
+ * When the EXTIV bit is set in the key id byte an additional
+ * 4 bytes immediately follow the IV for TKIP.  For CCMP the
+ * EXTIV bit is likewise set but the 8 bytes represent the
+ * CCMP header rather than IV+extended-IV.
+ */
+#define IEEE80211_WEP_EXTIV         0x20
+#define IEEE80211_WEP_EXTIVLEN      4   /* extended IV length */
+#define IEEE80211_WEP_MICLEN        8   /* trailing MIC */
+
+#define IEEE80211_CRC_LEN           4
+
+#ifdef WAPI_ENABLE
+#define IEEE80211_WAPI_EXTIVLEN      10   /* extended IV length */
+#endif /* WAPI ENABLE */
+
+
+#define IEEE80211_ADDR_LEN  6       /* size of 802.11 address */
+/* is 802.11 address multicast/broadcast? */
+#define IEEE80211_IS_MULTICAST(_a)  (*(_a) & 0x01)
+#define IEEE80211_IS_BROADCAST(_a)  (*(_a) == 0xFF)
+#define WEP_HEADER (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN)
+#define WEP_TRAILER IEEE80211_WEP_CRCLEN
+#define CCMP_HEADER (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + \
+                    IEEE80211_WEP_EXTIVLEN)
+#define CCMP_TRAILER IEEE80211_WEP_MICLEN
+#define TKIP_HEADER (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + \
+                    IEEE80211_WEP_EXTIVLEN)
+#define TKIP_TRAILER IEEE80211_WEP_CRCLEN
+#define TKIP_MICLEN  IEEE80211_WEP_MICLEN
+
+
+#define IEEE80211_ADDR_EQ(addr1, addr2)     \
+    (memcmp(addr1, addr2, IEEE80211_ADDR_LEN) == 0)
+
+#define IEEE80211_ADDR_COPY(dst,src)    memcpy(dst,src,IEEE80211_ADDR_LEN)
+
+#define IEEE80211_KEYBUF_SIZE 16
+#define IEEE80211_MICBUF_SIZE (8+8)  /* space for both tx and rx */
+
+/*
+ * NB: these values are ordered carefully; there are lots of
+ * of implications in any reordering.  In particular beware
+ * that 4 is not used to avoid conflicting with IEEE80211_F_PRIVACY.
+ */
+#define IEEE80211_CIPHER_WEP            0
+#define IEEE80211_CIPHER_TKIP           1
+#define IEEE80211_CIPHER_AES_OCB        2
+#define IEEE80211_CIPHER_AES_CCM        3
+#define IEEE80211_CIPHER_CKIP           5
+#define IEEE80211_CIPHER_CCKM_KRK       6
+#define IEEE80211_CIPHER_NONE           7       /* pseudo value */
+
+#define IEEE80211_CIPHER_MAX            (IEEE80211_CIPHER_NONE+1)
+
+#define IEEE80211_IS_VALID_WEP_CIPHER_LEN(len) \
+        (((len) == 5) || ((len) == 13) || ((len) == 16))
+
+
+
+/*
+ * generic definitions for IEEE 802.11 frames
+ */
+PREPACK struct ieee80211_frame {
+    u8 i_fc[2];
+    u8 i_dur[2];
+    u8 i_addr1[IEEE80211_ADDR_LEN];
+    u8 i_addr2[IEEE80211_ADDR_LEN];
+    u8 i_addr3[IEEE80211_ADDR_LEN];
+    u8 i_seq[2];
+    /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
+    /* see below */
+} POSTPACK;
+
+PREPACK struct ieee80211_qosframe {
+    u8 i_fc[2];
+    u8 i_dur[2];
+    u8 i_addr1[IEEE80211_ADDR_LEN];
+    u8 i_addr2[IEEE80211_ADDR_LEN];
+    u8 i_addr3[IEEE80211_ADDR_LEN];
+    u8 i_seq[2];
+    u8 i_qos[2];
+} POSTPACK;
+
+#define IEEE80211_FC0_VERSION_MASK          0x03
+#define IEEE80211_FC0_VERSION_SHIFT         0
+#define IEEE80211_FC0_VERSION_0             0x00
+#define IEEE80211_FC0_TYPE_MASK             0x0c
+#define IEEE80211_FC0_TYPE_SHIFT            2
+#define IEEE80211_FC0_TYPE_MGT              0x00
+#define IEEE80211_FC0_TYPE_CTL              0x04
+#define IEEE80211_FC0_TYPE_DATA             0x08
+
+#define IEEE80211_FC0_SUBTYPE_MASK          0xf0
+#define IEEE80211_FC0_SUBTYPE_SHIFT         4
+/* for TYPE_MGT */
+#define IEEE80211_FC0_SUBTYPE_ASSOC_REQ     0x00
+#define IEEE80211_FC0_SUBTYPE_ASSOC_RESP    0x10
+#define IEEE80211_FC0_SUBTYPE_REASSOC_REQ   0x20
+#define IEEE80211_FC0_SUBTYPE_REASSOC_RESP  0x30
+#define IEEE80211_FC0_SUBTYPE_PROBE_REQ     0x40
+#define IEEE80211_FC0_SUBTYPE_PROBE_RESP    0x50
+#define IEEE80211_FC0_SUBTYPE_BEACON        0x80
+#define IEEE80211_FC0_SUBTYPE_ATIM          0x90
+#define IEEE80211_FC0_SUBTYPE_DISASSOC      0xa0
+#define IEEE80211_FC0_SUBTYPE_AUTH          0xb0
+#define IEEE80211_FC0_SUBTYPE_DEAUTH        0xc0
+/* for TYPE_CTL */
+#define IEEE80211_FC0_SUBTYPE_PS_POLL       0xa0
+#define IEEE80211_FC0_SUBTYPE_RTS           0xb0
+#define IEEE80211_FC0_SUBTYPE_CTS           0xc0
+#define IEEE80211_FC0_SUBTYPE_ACK           0xd0
+#define IEEE80211_FC0_SUBTYPE_CF_END        0xe0
+#define IEEE80211_FC0_SUBTYPE_CF_END_ACK    0xf0
+/* for TYPE_DATA (bit combination) */
+#define IEEE80211_FC0_SUBTYPE_DATA          0x00
+#define IEEE80211_FC0_SUBTYPE_CF_ACK        0x10
+#define IEEE80211_FC0_SUBTYPE_CF_POLL       0x20
+#define IEEE80211_FC0_SUBTYPE_CF_ACPL       0x30
+#define IEEE80211_FC0_SUBTYPE_NODATA        0x40
+#define IEEE80211_FC0_SUBTYPE_CFACK         0x50
+#define IEEE80211_FC0_SUBTYPE_CFPOLL        0x60
+#define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70
+#define IEEE80211_FC0_SUBTYPE_QOS           0x80
+#define IEEE80211_FC0_SUBTYPE_QOS_NULL      0xc0
+
+#define IEEE80211_FC1_DIR_MASK              0x03
+#define IEEE80211_FC1_DIR_NODS              0x00    /* STA->STA */
+#define IEEE80211_FC1_DIR_TODS              0x01    /* STA->AP  */
+#define IEEE80211_FC1_DIR_FROMDS            0x02    /* AP ->STA */
+#define IEEE80211_FC1_DIR_DSTODS            0x03    /* AP ->AP  */
+
+#define IEEE80211_FC1_MORE_FRAG             0x04
+#define IEEE80211_FC1_RETRY                 0x08
+#define IEEE80211_FC1_PWR_MGT               0x10
+#define IEEE80211_FC1_MORE_DATA             0x20
+#define IEEE80211_FC1_WEP                   0x40
+#define IEEE80211_FC1_ORDER                 0x80
+
+#define IEEE80211_SEQ_FRAG_MASK             0x000f
+#define IEEE80211_SEQ_FRAG_SHIFT            0
+#define IEEE80211_SEQ_SEQ_MASK              0xfff0
+#define IEEE80211_SEQ_SEQ_SHIFT             4
+
+#define IEEE80211_NWID_LEN                  32
+
+/*
+ * 802.11 rate set.
+ */
+#define IEEE80211_RATE_SIZE     8       /* 802.11 standard */
+#define IEEE80211_RATE_MAXSIZE  15      /* max rates we'll handle */
+
+#define WMM_NUM_AC                  4   /* 4 AC categories */
+
+#define WMM_PARAM_ACI_M         0x60    /* Mask for ACI field */
+#define WMM_PARAM_ACI_S         5   /* Shift for ACI field */
+#define WMM_PARAM_ACM_M         0x10    /* Mask for ACM bit */
+#define WMM_PARAM_ACM_S         4       /* Shift for ACM bit */
+#define WMM_PARAM_AIFSN_M       0x0f    /* Mask for aifsn field */
+#define WMM_PARAM_LOGCWMIN_M    0x0f    /* Mask for CwMin field (in log) */
+#define WMM_PARAM_LOGCWMAX_M    0xf0    /* Mask for CwMax field (in log) */
+#define WMM_PARAM_LOGCWMAX_S    4   /* Shift for CwMax field */
+
+#define WMM_AC_TO_TID(_ac) (       \
+    ((_ac) == WMM_AC_VO) ? 6 : \
+    ((_ac) == WMM_AC_VI) ? 5 : \
+    ((_ac) == WMM_AC_BK) ? 1 : \
+    0)
+
+#define TID_TO_WMM_AC(_tid) (      \
+    ((_tid) < 1) ? WMM_AC_BE : \
+    ((_tid) < 3) ? WMM_AC_BK : \
+    ((_tid) < 6) ? WMM_AC_VI : \
+    WMM_AC_VO)
+/*
+ * Management information element payloads.
+ */
+
+enum {
+    IEEE80211_ELEMID_SSID       = 0,
+    IEEE80211_ELEMID_RATES      = 1,
+    IEEE80211_ELEMID_FHPARMS    = 2,
+    IEEE80211_ELEMID_DSPARMS    = 3,
+    IEEE80211_ELEMID_CFPARMS    = 4,
+    IEEE80211_ELEMID_TIM        = 5,
+    IEEE80211_ELEMID_IBSSPARMS  = 6,
+    IEEE80211_ELEMID_COUNTRY    = 7,
+    IEEE80211_ELEMID_CHALLENGE  = 16,
+    /* 17-31 reserved for challenge text extension */
+    IEEE80211_ELEMID_PWRCNSTR   = 32,
+    IEEE80211_ELEMID_PWRCAP     = 33,
+    IEEE80211_ELEMID_TPCREQ     = 34,
+    IEEE80211_ELEMID_TPCREP     = 35,
+    IEEE80211_ELEMID_SUPPCHAN   = 36,
+    IEEE80211_ELEMID_CHANSWITCH = 37,
+    IEEE80211_ELEMID_MEASREQ    = 38,
+    IEEE80211_ELEMID_MEASREP    = 39,
+    IEEE80211_ELEMID_QUIET      = 40,
+    IEEE80211_ELEMID_IBSSDFS    = 41,
+    IEEE80211_ELEMID_ERP        = 42,
+    IEEE80211_ELEMID_HTCAP_ANA  = 45,   /* Address ANA, and non-ANA story, for interop. CL#171733 */
+    IEEE80211_ELEMID_RSN        = 48,
+    IEEE80211_ELEMID_XRATES     = 50,
+    IEEE80211_ELEMID_HTINFO_ANA = 61,
+#ifdef WAPI_ENABLE
+    IEEE80211_ELEMID_WAPI       = 68,
+#endif
+    IEEE80211_ELEMID_TPC        = 150,
+    IEEE80211_ELEMID_CCKM       = 156,
+    IEEE80211_ELEMID_VENDOR     = 221,  /* vendor private */
+};
+
+#define ATH_OUI             0x7f0300        /* Atheros OUI */
+#define ATH_OUI_TYPE        0x01
+#define ATH_OUI_SUBTYPE     0x01
+#define ATH_OUI_VERSION     0x00
+
+#define WPA_OUI             0xf25000
+#define WPA_OUI_TYPE        0x01
+#define WPA_VERSION         1          /* current supported version */
+
+#define WPA_CSE_NULL        0x00
+#define WPA_CSE_WEP40       0x01
+#define WPA_CSE_TKIP        0x02
+#define WPA_CSE_CCMP        0x04
+#define WPA_CSE_WEP104      0x05
+
+#define WPA_ASE_NONE        0x00
+#define WPA_ASE_8021X_UNSPEC    0x01
+#define WPA_ASE_8021X_PSK   0x02
+
+#define RSN_OUI         0xac0f00
+#define RSN_VERSION     1       /* current supported version */
+
+#define RSN_CSE_NULL        0x00
+#define RSN_CSE_WEP40       0x01
+#define RSN_CSE_TKIP        0x02
+#define RSN_CSE_WRAP        0x03
+#define RSN_CSE_CCMP        0x04
+#define RSN_CSE_WEP104      0x05
+
+#define RSN_ASE_NONE            0x00
+#define RSN_ASE_8021X_UNSPEC    0x01
+#define RSN_ASE_8021X_PSK       0x02
+
+#define RSN_CAP_PREAUTH         0x01
+
+#define WMM_OUI                 0xf25000
+#define WMM_OUI_TYPE            0x02
+#define WMM_INFO_OUI_SUBTYPE    0x00
+#define WMM_PARAM_OUI_SUBTYPE   0x01
+#define WMM_VERSION             1
+
+/* WMM stream classes */
+#define WMM_NUM_AC  4
+#define WMM_AC_BE   0       /* best effort */
+#define WMM_AC_BK   1       /* background */
+#define WMM_AC_VI   2       /* video */
+#define WMM_AC_VO   3       /* voice */
+
+/* TSPEC related */
+#define ACTION_CATEGORY_CODE_TSPEC                 17
+#define ACTION_CODE_TSPEC_ADDTS                    0
+#define ACTION_CODE_TSPEC_ADDTS_RESP               1
+#define ACTION_CODE_TSPEC_DELTS                    2
+
+typedef enum {
+    TSPEC_STATUS_CODE_ADMISSION_ACCEPTED = 0,
+    TSPEC_STATUS_CODE_ADDTS_INVALID_PARAMS = 0x1,
+    TSPEC_STATUS_CODE_ADDTS_REQUEST_REFUSED = 0x3,
+    TSPEC_STATUS_CODE_UNSPECIFIED_QOS_RELATED_FAILURE = 0xC8,
+    TSPEC_STATUS_CODE_REQUESTED_REFUSED_POLICY_CONFIGURATION = 0xC9,
+    TSPEC_STATUS_CODE_INSUFFCIENT_BANDWIDTH = 0xCA,
+    TSPEC_STATUS_CODE_INVALID_PARAMS = 0xCB,
+    TSPEC_STATUS_CODE_DELTS_SENT    = 0x30,
+    TSPEC_STATUS_CODE_DELTS_RECV    = 0x31,
+} TSPEC_STATUS_CODE;
+
+#define TSPEC_TSID_MASK             0xF
+#define TSPEC_TSID_S                1
+
+/*
+ * WMM/802.11e Tspec Element
+ */
+typedef PREPACK struct wmm_tspec_ie_t {
+    u8 elementId;
+    u8 len;
+    u8 oui[3];
+    u8 ouiType;
+    u8 ouiSubType;
+    u8 version;
+    u16 tsInfo_info;
+    u8 tsInfo_reserved;
+    u16 nominalMSDU;
+    u16 maxMSDU;
+    u32 minServiceInt;
+    u32 maxServiceInt;
+    u32 inactivityInt;
+    u32 suspensionInt;
+    u32 serviceStartTime;
+    u32 minDataRate;
+    u32 meanDataRate;
+    u32 peakDataRate;
+    u32 maxBurstSize;
+    u32 delayBound;
+    u32 minPhyRate;
+    u16 sba;
+    u16 mediumTime;
+} POSTPACK WMM_TSPEC_IE;
+
+
+/*
+ * BEACON management packets
+ *
+ *  octet timestamp[8]
+ *  octet beacon interval[2]
+ *  octet capability information[2]
+ *  information element
+ *      octet elemid
+ *      octet length
+ *      octet information[length]
+ */
+
+#define IEEE80211_BEACON_INTERVAL(beacon) \
+    ((beacon)[8] | ((beacon)[9] << 8))
+#define IEEE80211_BEACON_CAPABILITY(beacon) \
+    ((beacon)[10] | ((beacon)[11] << 8))
+
+#define IEEE80211_CAPINFO_ESS               0x0001
+#define IEEE80211_CAPINFO_IBSS              0x0002
+#define IEEE80211_CAPINFO_CF_POLLABLE       0x0004
+#define IEEE80211_CAPINFO_CF_POLLREQ        0x0008
+#define IEEE80211_CAPINFO_PRIVACY           0x0010
+#define IEEE80211_CAPINFO_SHORT_PREAMBLE    0x0020
+#define IEEE80211_CAPINFO_PBCC              0x0040
+#define IEEE80211_CAPINFO_CHNL_AGILITY      0x0080
+/* bits 8-9 are reserved */
+#define IEEE80211_CAPINFO_SHORT_SLOTTIME    0x0400
+#define IEEE80211_CAPINFO_APSD              0x0800
+/* bit 12 is reserved */
+#define IEEE80211_CAPINFO_DSSSOFDM          0x2000
+/* bits 14-15 are reserved */
+
+/*
+ * Authentication Modes
+ */
+
+enum ieee80211_authmode {
+    IEEE80211_AUTH_NONE     = 0,
+    IEEE80211_AUTH_OPEN     = 1,
+    IEEE80211_AUTH_SHARED   = 2,
+    IEEE80211_AUTH_8021X    = 3,
+    IEEE80211_AUTH_AUTO     = 4,   /* auto-select/accept */
+    /* NB: these are used only for ioctls */
+    IEEE80211_AUTH_WPA      = 5,  /* WPA/RSN  w/ 802.1x */
+    IEEE80211_AUTH_WPA_PSK  = 6,  /* WPA/RSN  w/ PSK */
+    IEEE80211_AUTH_WPA_CCKM = 7,  /* WPA/RSN IE  w/ CCKM */
+};
+
+#define IEEE80211_PS_MAX_QUEUE    50 /*Maximum no of buffers that can be queues for PS*/
+
+#endif /* _NET80211_IEEE80211_H_ */
diff --git a/drivers/staging/ath6kl/wlan/include/ieee80211_node.h b/drivers/staging/ath6kl/wlan/include/ieee80211_node.h
new file mode 100644
index 00000000000..1cb01671c0d
--- /dev/null
+++ b/drivers/staging/ath6kl/wlan/include/ieee80211_node.h
@@ -0,0 +1,93 @@
+//------------------------------------------------------------------------------
+// <copyright file="ieee80211_node.h" company="Atheros">
+//    Copyright (c) 2004-2010 Atheros Corporation.  All rights reserved.
+// 
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+//
+//
+//------------------------------------------------------------------------------
+//==============================================================================
+// Author(s): ="Atheros"
+//==============================================================================
+#ifndef _IEEE80211_NODE_H_
+#define _IEEE80211_NODE_H_
+
+/*
+ * Node locking definitions.
+ */
+#define IEEE80211_NODE_LOCK_INIT(_nt)   A_MUTEX_INIT(&(_nt)->nt_nodelock)
+#define IEEE80211_NODE_LOCK_DESTROY(_nt) if (A_IS_MUTEX_VALID(&(_nt)->nt_nodelock)) { \
+                                               A_MUTEX_DELETE(&(_nt)->nt_nodelock); }
+       
+#define IEEE80211_NODE_LOCK(_nt)        A_MUTEX_LOCK(&(_nt)->nt_nodelock)
+#define IEEE80211_NODE_UNLOCK(_nt)      A_MUTEX_UNLOCK(&(_nt)->nt_nodelock)
+#define IEEE80211_NODE_LOCK_BH(_nt)     A_MUTEX_LOCK(&(_nt)->nt_nodelock)
+#define IEEE80211_NODE_UNLOCK_BH(_nt)   A_MUTEX_UNLOCK(&(_nt)->nt_nodelock)
+#define IEEE80211_NODE_LOCK_ASSERT(_nt)
+
+/*
+ * Node reference counting definitions.
+ *
+ * ieee80211_node_initref   initialize the reference count to 1
+ * ieee80211_node_incref    add a reference
+ * ieee80211_node_decref    remove a reference
+ * ieee80211_node_dectestref    remove a reference and return 1 if this
+ *              is the last reference, otherwise 0
+ * ieee80211_node_refcnt    reference count for printing (only)
+ */
+#define ieee80211_node_initref(_ni)     ((_ni)->ni_refcnt = 1)
+#define ieee80211_node_incref(_ni)      ((_ni)->ni_refcnt++)
+#define ieee80211_node_decref(_ni)      ((_ni)->ni_refcnt--)
+#define ieee80211_node_dectestref(_ni)  (((_ni)->ni_refcnt--) == 1)
+#define ieee80211_node_refcnt(_ni)      ((_ni)->ni_refcnt)
+
+#define IEEE80211_NODE_HASHSIZE 32
+/* simple hash is enough for variation of macaddr */
+#define IEEE80211_NODE_HASH(addr)   \
+    (((const u8 *)(addr))[IEEE80211_ADDR_LEN - 1] % \
+        IEEE80211_NODE_HASHSIZE)
+
+/*
+ * Table of ieee80211_node instances.  Each ieee80211com
+ * has at least one for holding the scan candidates.
+ * When operating as an access point or in ibss mode there
+ * is a second table for associated stations or neighbors.
+ */
+struct ieee80211_node_table {
+    void                   *nt_wmip;       /* back reference */
+    A_MUTEX_T               nt_nodelock;    /* on node table */
+    struct bss              *nt_node_first; /* information of all nodes */
+    struct bss              *nt_node_last;  /* information of all nodes */
+    struct bss              *nt_hash[IEEE80211_NODE_HASHSIZE];
+    const char              *nt_name;   /* for debugging */
+    u32 nt_scangen; /* gen# for timeout scan */
+#ifdef THREAD_X
+    A_TIMER                 nt_inact_timer;
+    u8 isTimerArmed;   /* is the node timer armed */
+#endif
+    u32 nt_nodeAge; /* node aging time */
+#ifdef OS_ROAM_MANAGEMENT
+    u32 nt_si_gen; /* gen# for scan indication*/
+#endif
+};
+
+#ifdef THREAD_X
+#define WLAN_NODE_INACT_TIMEOUT_MSEC            20000
+#else
+#define WLAN_NODE_INACT_TIMEOUT_MSEC            120000
+#endif
+   
+#define WLAN_NODE_INACT_CNT            4
+
+#endif /* _IEEE80211_NODE_H_ */
diff --git a/drivers/staging/ath6kl/wlan/src/wlan_node.c b/drivers/staging/ath6kl/wlan/src/wlan_node.c
new file mode 100644
index 00000000000..0fe5f4b1346
--- /dev/null
+++ b/drivers/staging/ath6kl/wlan/src/wlan_node.c
@@ -0,0 +1,636 @@
+//------------------------------------------------------------------------------
+// <copyright file="wlan_node.c" company="Atheros">
+//    Copyright (c) 2004-2010 Atheros Corporation.  All rights reserved.
+// 
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+//
+//
+//------------------------------------------------------------------------------
+//==============================================================================
+// IEEE 802.11 node handling support.
+//
+// Author(s): ="Atheros"
+//==============================================================================
+#include <a_config.h>
+#include <athdefs.h>
+#include <a_osapi.h>
+#define ATH_MODULE_NAME wlan
+#include <a_debug.h>
+#include "htc.h"
+#include "htc_api.h"
+#include <wmi.h>
+#include <ieee80211.h>
+#include <wlan_api.h>
+#include <wmi_api.h>
+#include <ieee80211_node.h>
+
+#define ATH_DEBUG_WLAN ATH_DEBUG_MAKE_MODULE_MASK(0)
+
+#ifdef ATH_DEBUG_MODULE
+
+static struct ath_debug_mask_description wlan_debug_desc[] = {
+    { ATH_DEBUG_WLAN , "General WLAN Node Tracing"},
+};
+
+ATH_DEBUG_INSTANTIATE_MODULE_VAR(wlan,
+                                 "wlan",
+                                 "WLAN Node Management",
+                                 ATH_DEBUG_MASK_DEFAULTS,
+                                 ATH_DEBUG_DESCRIPTION_COUNT(wlan_debug_desc),
+                                 wlan_debug_desc);
+                                 
+#endif
+
+#ifdef THREAD_X
+static void wlan_node_timeout(unsigned long arg);
+#endif
+
+static bss_t * _ieee80211_find_node (struct ieee80211_node_table *nt,
+                                     const u8 *macaddr);
+
+bss_t *
+wlan_node_alloc(struct ieee80211_node_table *nt, int wh_size)
+{
+    bss_t *ni;
+
+    ni = A_MALLOC_NOWAIT(sizeof(bss_t));
+
+    if (ni != NULL) {
+        if (wh_size)
+        {
+        ni->ni_buf = A_MALLOC_NOWAIT(wh_size);
+        if (ni->ni_buf == NULL) {
+            kfree(ni);
+            ni = NULL;
+            return ni;
+        }
+        }
+    } else {
+        return ni;
+    }
+
+    /* Make sure our lists are clean */
+    ni->ni_list_next = NULL;
+    ni->ni_list_prev = NULL;
+    ni->ni_hash_next = NULL;
+    ni->ni_hash_prev = NULL;
+
+    //
+    // ni_scangen never initialized before and during suspend/resume of winmobile,
+    // that some junk has been stored in this, due to this scan list didn't properly updated
+    //
+    ni->ni_scangen   = 0;
+
+#ifdef OS_ROAM_MANAGEMENT
+    ni->ni_si_gen    = 0;
+#endif
+
+    return ni;
+}
+
+void
+wlan_node_free(bss_t *ni)
+{
+    if (ni->ni_buf != NULL) {
+        kfree(ni->ni_buf);
+    }
+    kfree(ni);
+}
+
+void
+wlan_setup_node(struct ieee80211_node_table *nt, bss_t *ni,
+                const u8 *macaddr)
+{
+    int hash;
+    u32 timeoutValue = 0;
+
+    memcpy(ni->ni_macaddr, macaddr, IEEE80211_ADDR_LEN);
+    hash = IEEE80211_NODE_HASH (macaddr);
+    ieee80211_node_initref (ni);     /* mark referenced */
+
+    timeoutValue = nt->nt_nodeAge;
+
+    ni->ni_tstamp = A_GET_MS (0);
+    ni->ni_actcnt = WLAN_NODE_INACT_CNT;
+
+    IEEE80211_NODE_LOCK_BH(nt);
+
+    /* Insert at the end of the node list */
+    ni->ni_list_next = NULL;
+    ni->ni_list_prev = nt->nt_node_last;
+    if(nt->nt_node_last != NULL)
+    {
+        nt->nt_node_last->ni_list_next = ni;
+    }
+    nt->nt_node_last = ni;
+    if(nt->nt_node_first == NULL)
+    {
+        nt->nt_node_first = ni;
+    }
+
+    /* Insert into the hash list i.e. the bucket */
+    if((ni->ni_hash_next = nt->nt_hash[hash]) != NULL)
+    {
+        nt->nt_hash[hash]->ni_hash_prev = ni;
+    }
+    ni->ni_hash_prev = NULL;
+    nt->nt_hash[hash] = ni;
+
+#ifdef THREAD_X
+    if (!nt->isTimerArmed) {
+        A_TIMEOUT_MS(&nt->nt_inact_timer, timeoutValue, 0);
+        nt->isTimerArmed = true;
+    }
+#endif
+
+    IEEE80211_NODE_UNLOCK_BH(nt);
+}
+
+static bss_t *
+_ieee80211_find_node(struct ieee80211_node_table *nt,
+    const u8 *macaddr)
+{
+    bss_t *ni;
+    int hash;
+
+    IEEE80211_NODE_LOCK_ASSERT(nt);
+
+    hash = IEEE80211_NODE_HASH(macaddr);
+    for(ni = nt->nt_hash[hash]; ni; ni = ni->ni_hash_next) {
+        if (IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr)) {
+            ieee80211_node_incref(ni);  /* mark referenced */
+            return ni;
+        }
+    }
+    return NULL;
+}
+
+bss_t *
+wlan_find_node(struct ieee80211_node_table *nt, const u8 *macaddr)
+{
+    bss_t *ni;
+
+    IEEE80211_NODE_LOCK(nt);
+    ni = _ieee80211_find_node(nt, macaddr);
+    IEEE80211_NODE_UNLOCK(nt);
+    return ni;
+}
+
+/*
+ * Reclaim a node.  If this is the last reference count then
+ * do the normal free work.  Otherwise remove it from the node
+ * table and mark it gone by clearing the back-reference.
+ */
+void
+wlan_node_reclaim(struct ieee80211_node_table *nt, bss_t *ni)
+{
+    IEEE80211_NODE_LOCK(nt);
+
+    if(ni->ni_list_prev == NULL)
+    {
+        /* First in list so fix the list head */
+        nt->nt_node_first = ni->ni_list_next;
+    }
+    else
+    {
+        ni->ni_list_prev->ni_list_next = ni->ni_list_next;
+    }
+
+    if(ni->ni_list_next == NULL)
+    {
+        /* Last in list so fix list tail */
+        nt->nt_node_last = ni->ni_list_prev;
+    }
+    else
+    {
+        ni->ni_list_next->ni_list_prev = ni->ni_list_prev;
+    }
+
+    if(ni->ni_hash_prev == NULL)
+    {
+        /* First in list so fix the list head */
+        int hash;
+        hash = IEEE80211_NODE_HASH(ni->ni_macaddr);
+        nt->nt_hash[hash] = ni->ni_hash_next;
+    }
+    else
+    {
+        ni->ni_hash_prev->ni_hash_next = ni->ni_hash_next;
+    }
+
+    if(ni->ni_hash_next != NULL)
+    {
+        ni->ni_hash_next->ni_hash_prev = ni->ni_hash_prev;
+    }
+    wlan_node_free(ni);
+
+    IEEE80211_NODE_UNLOCK(nt);
+}
+
+static void
+wlan_node_dec_free(bss_t *ni)
+{
+    if (ieee80211_node_dectestref(ni)) {
+        wlan_node_free(ni);
+    }
+}
+
+void
+wlan_free_allnodes(struct ieee80211_node_table *nt)
+{
+    bss_t *ni;
+
+    while ((ni = nt->nt_node_first) != NULL) {
+        wlan_node_reclaim(nt, ni);
+    }
+}
+
+void
+wlan_iterate_nodes(struct ieee80211_node_table *nt, wlan_node_iter_func *f,
+                   void *arg)
+{
+    bss_t *ni;
+    u32 gen;
+
+    gen = ++nt->nt_scangen;
+
+    IEEE80211_NODE_LOCK(nt);
+    for (ni = nt->nt_node_first; ni; ni = ni->ni_list_next) {
+        if (ni->ni_scangen != gen) {
+            ni->ni_scangen = gen;
+            (void) ieee80211_node_incref(ni);
+            (*f)(arg, ni);
+            wlan_node_dec_free(ni);
+        }
+    }
+    IEEE80211_NODE_UNLOCK(nt);
+}
+
+/*
+ * Node table support.
+ */
+void
+wlan_node_table_init(void *wmip, struct ieee80211_node_table *nt)
+{
+    int i;
+
+    AR_DEBUG_PRINTF(ATH_DEBUG_WLAN, ("node table = 0x%lx\n", (unsigned long)nt));
+    IEEE80211_NODE_LOCK_INIT(nt);
+
+    A_REGISTER_MODULE_DEBUG_INFO(wlan);
+    
+    nt->nt_node_first = nt->nt_node_last = NULL;
+    for(i = 0; i < IEEE80211_NODE_HASHSIZE; i++)
+    {
+        nt->nt_hash[i] = NULL;
+    }
+
+#ifdef THREAD_X
+    A_INIT_TIMER(&nt->nt_inact_timer, wlan_node_timeout, nt);
+    nt->isTimerArmed = false;
+#endif
+    nt->nt_wmip = wmip;
+    nt->nt_nodeAge = WLAN_NODE_INACT_TIMEOUT_MSEC;
+
+    //
+    // nt_scangen never initialized before and during suspend/resume of winmobile, 
+    // that some junk has been stored in this, due to this scan list didn't properly updated
+    //
+    nt->nt_scangen   = 0;
+
+#ifdef OS_ROAM_MANAGEMENT
+    nt->nt_si_gen    = 0;
+#endif
+}
+
+void
+wlan_set_nodeage(struct ieee80211_node_table *nt, u32 nodeAge)
+{
+    nt->nt_nodeAge = nodeAge;
+    return;
+}
+void
+wlan_refresh_inactive_nodes (struct ieee80211_node_table *nt)
+{
+#ifdef THREAD_X
+    bss_t *bss, *nextBss;
+    u8 myBssid[IEEE80211_ADDR_LEN], reArmTimer = false;
+
+    wmi_get_current_bssid(nt->nt_wmip, myBssid);
+
+    bss = nt->nt_node_first;
+    while (bss != NULL)
+    {
+        nextBss = bss->ni_list_next;
+        if (memcmp(myBssid, bss->ni_macaddr, sizeof(myBssid)) != 0)
+        {
+               /*
+                * free up all but the current bss - if set
+                */
+                wlan_node_reclaim(nt, bss);
+
+        }
+        bss = nextBss;
+    }
+#else
+    bss_t *bss, *nextBss;
+    u8 myBssid[IEEE80211_ADDR_LEN];
+    u32 timeoutValue = 0;
+    u32 now = A_GET_MS(0);
+    timeoutValue = nt->nt_nodeAge;
+
+    wmi_get_current_bssid(nt->nt_wmip, myBssid);
+
+    bss = nt->nt_node_first;
+    while (bss != NULL)
+    {
+        nextBss = bss->ni_list_next;
+        if (memcmp(myBssid, bss->ni_macaddr, sizeof(myBssid)) != 0)
+        {
+
+            if (((now - bss->ni_tstamp) > timeoutValue)  || --bss->ni_actcnt == 0)
+            {
+               /*
+                * free up all but the current bss - if set
+                */
+                wlan_node_reclaim(nt, bss);
+            }
+        }
+        bss = nextBss;
+    }
+#endif
+}
+
+#ifdef THREAD_X
+static void
+wlan_node_timeout (unsigned long arg)
+{
+    struct ieee80211_node_table *nt = (struct ieee80211_node_table *)arg;
+    bss_t *bss, *nextBss;
+    u8 myBssid[IEEE80211_ADDR_LEN], reArmTimer = false;
+    u32 timeoutValue = 0;
+    u32 now = A_GET_MS(0);
+
+    timeoutValue = nt->nt_nodeAge;
+
+    wmi_get_current_bssid(nt->nt_wmip, myBssid);
+
+    bss = nt->nt_node_first;
+    while (bss != NULL)
+    {
+        nextBss = bss->ni_list_next;
+        if (memcmp(myBssid, bss->ni_macaddr, sizeof(myBssid)) != 0)
+        {
+
+            if ((now - bss->ni_tstamp) > timeoutValue)
+            {
+               /*
+                * free up all but the current bss - if set
+                */
+                wlan_node_reclaim(nt, bss);
+            }
+            else
+            {
+                /*
+                 * Re-arm timer, only when we have a bss other than
+                 * current bss AND it is not aged-out.
+                 */
+                reArmTimer = true;
+            }
+        }
+        bss = nextBss;
+    }
+
+    if (reArmTimer)
+        A_TIMEOUT_MS (&nt->nt_inact_timer, timeoutValue, 0);
+
+    nt->isTimerArmed = reArmTimer;
+}
+#endif
+
+void
+wlan_node_table_cleanup(struct ieee80211_node_table *nt)
+{
+#ifdef THREAD_X
+    A_UNTIMEOUT(&nt->nt_inact_timer);
+    A_DELETE_TIMER(&nt->nt_inact_timer);
+#endif
+    wlan_free_allnodes(nt);
+    IEEE80211_NODE_LOCK_DESTROY(nt);
+}
+
+bss_t *
+wlan_find_Ssidnode (struct ieee80211_node_table *nt, u8 *pSsid,
+                    u32 ssidLength, bool bIsWPA2, bool bMatchSSID)
+{
+    bss_t   *ni = NULL;
+    u8 *pIESsid = NULL;
+
+    IEEE80211_NODE_LOCK (nt);
+
+    for (ni = nt->nt_node_first; ni; ni = ni->ni_list_next) {
+        pIESsid = ni->ni_cie.ie_ssid;
+        if (pIESsid[1] <= 32) {
+
+            // Step 1 : Check SSID
+            if (0x00 == memcmp (pSsid, &pIESsid[2], ssidLength)) {
+
+                //
+                // Step 2.1 : Check MatchSSID is true, if so, return Matched SSID
+                // Profile, otherwise check whether WPA2 or WPA
+                //
+                if (true == bMatchSSID) {
+                    ieee80211_node_incref (ni);  /* mark referenced */
+                    IEEE80211_NODE_UNLOCK (nt);
+                    return ni;
+                }
+
+                // Step 2 : if SSID matches, check WPA or WPA2
+                if (true == bIsWPA2 && NULL != ni->ni_cie.ie_rsn) {
+                    ieee80211_node_incref (ni);  /* mark referenced */
+                    IEEE80211_NODE_UNLOCK (nt);
+                    return ni;
+                }
+                if (false == bIsWPA2 && NULL != ni->ni_cie.ie_wpa) {
+                    ieee80211_node_incref(ni);  /* mark referenced */
+                    IEEE80211_NODE_UNLOCK (nt);
+                    return ni;
+                }
+            }
+        }
+    }
+
+    IEEE80211_NODE_UNLOCK (nt);
+
+    return NULL;
+}
+
+void
+wlan_node_return (struct ieee80211_node_table *nt, bss_t *ni)
+{
+    IEEE80211_NODE_LOCK (nt);
+    wlan_node_dec_free (ni);
+    IEEE80211_NODE_UNLOCK (nt);
+}
+
+void
+wlan_node_remove_core (struct ieee80211_node_table *nt, bss_t *ni)
+{
+    if(ni->ni_list_prev == NULL)
+    {
+        /* First in list so fix the list head */
+        nt->nt_node_first = ni->ni_list_next;
+    }
+    else
+    {
+        ni->ni_list_prev->ni_list_next = ni->ni_list_next;
+    }
+
+    if(ni->ni_list_next == NULL)
+    {
+        /* Last in list so fix list tail */
+        nt->nt_node_last = ni->ni_list_prev;
+    }
+    else
+    {
+        ni->ni_list_next->ni_list_prev = ni->ni_list_prev;
+    }
+
+    if(ni->ni_hash_prev == NULL)
+    {
+        /* First in list so fix the list head */
+        int hash;
+        hash = IEEE80211_NODE_HASH(ni->ni_macaddr);
+        nt->nt_hash[hash] = ni->ni_hash_next;
+    }
+    else
+    {
+        ni->ni_hash_prev->ni_hash_next = ni->ni_hash_next;
+    }
+
+    if(ni->ni_hash_next != NULL)
+    {
+        ni->ni_hash_next->ni_hash_prev = ni->ni_hash_prev;
+    }
+}
+
+bss_t *
+wlan_node_remove(struct ieee80211_node_table *nt, u8 *bssid)
+{
+    bss_t *bss, *nextBss;
+
+    IEEE80211_NODE_LOCK(nt);
+
+    bss = nt->nt_node_first;
+
+    while (bss != NULL)
+    {
+        nextBss = bss->ni_list_next;
+
+        if (memcmp(bssid, bss->ni_macaddr, 6) == 0)
+        {
+            wlan_node_remove_core (nt, bss);
+            IEEE80211_NODE_UNLOCK(nt);
+            return bss;
+        }
+
+        bss = nextBss;
+    }
+
+    IEEE80211_NODE_UNLOCK(nt);
+    return NULL;
+}
+
+bss_t *
+wlan_find_matching_Ssidnode (struct ieee80211_node_table *nt, u8 *pSsid,
+                    u32 ssidLength, u32 dot11AuthMode, u32 authMode,
+                   u32 pairwiseCryptoType, u32 grpwiseCryptoTyp)
+{
+    bss_t   *ni = NULL;
+    bss_t   *best_ni = NULL;
+    u8 *pIESsid = NULL;
+
+    IEEE80211_NODE_LOCK (nt);
+
+    for (ni = nt->nt_node_first; ni; ni = ni->ni_list_next) {
+        pIESsid = ni->ni_cie.ie_ssid;
+        if (pIESsid[1] <= 32) {
+
+            // Step 1 : Check SSID
+            if (0x00 == memcmp (pSsid, &pIESsid[2], ssidLength)) {
+
+                if (ni->ni_cie.ie_capInfo & 0x10)
+                {
+
+                    if ((NULL != ni->ni_cie.ie_rsn) && (WPA2_PSK_AUTH == authMode))
+                    {
+                        /* WPA2 */
+                        if (NULL == best_ni)
+                        {
+                            best_ni = ni;
+                        }
+                        else if (ni->ni_rssi > best_ni->ni_rssi)
+                        {
+                            best_ni = ni;
+                        }
+                    }
+                    else if ((NULL != ni->ni_cie.ie_wpa) && (WPA_PSK_AUTH == authMode))
+                    {
+                        /* WPA */
+                        if (NULL == best_ni)
+                        {
+                            best_ni = ni;
+                        }
+                        else if (ni->ni_rssi > best_ni->ni_rssi)
+                        {
+                            best_ni = ni;
+                        }
+                    }
+                    else if (WEP_CRYPT == pairwiseCryptoType)
+                    {
+                        /* WEP */
+                        if (NULL == best_ni)
+                        {
+                            best_ni = ni;
+                        }
+                        else if (ni->ni_rssi > best_ni->ni_rssi)
+                        {
+                            best_ni = ni;
+                        }
+                    }
+                }
+                else
+                {
+                    /* open AP */
+                    if ((OPEN_AUTH == authMode) && (NONE_CRYPT == pairwiseCryptoType))
+                    {
+                        if (NULL == best_ni)
+                        {
+                            best_ni = ni;
+                        }
+                        else if (ni->ni_rssi > best_ni->ni_rssi)
+                        {
+                            best_ni = ni;
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    IEEE80211_NODE_UNLOCK (nt);
+
+    return best_ni;
+}
+
diff --git a/drivers/staging/ath6kl/wlan/src/wlan_recv_beacon.c b/drivers/staging/ath6kl/wlan/src/wlan_recv_beacon.c
new file mode 100644
index 00000000000..07b8313b16e
--- /dev/null
+++ b/drivers/staging/ath6kl/wlan/src/wlan_recv_beacon.c
@@ -0,0 +1,199 @@
+//------------------------------------------------------------------------------
+// <copyright file="wlan_recv_beacon.c" company="Atheros">
+//    Copyright (c) 2004-2010 Atheros Corporation.  All rights reserved.
+// 
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+//
+//
+//------------------------------------------------------------------------------
+//==============================================================================
+// IEEE 802.11 input handling.
+//
+// Author(s): ="Atheros"
+//==============================================================================
+
+#include "a_config.h"
+#include "athdefs.h"
+#include "a_osapi.h"
+#include <wmi.h>
+#include <ieee80211.h>
+#include <wlan_api.h>
+
+#define IEEE80211_VERIFY_LENGTH(_len, _minlen) do {         \
+    if ((_len) < (_minlen)) {                   \
+        return A_EINVAL;                         \
+    }                               \
+} while (0)
+
+#define IEEE80211_VERIFY_ELEMENT(__elem, __maxlen) do {         \
+    if ((__elem) == NULL) {                     \
+        return A_EINVAL;                         \
+    }                               \
+    if ((__elem)[1] > (__maxlen)) {                 \
+        return A_EINVAL;                         \
+    }                               \
+} while (0)
+
+
+/* unaligned little endian access */
+#define LE_READ_2(p)                            \
+    ((u16)                            \
+     ((((u8 *)(p))[0]      ) | (((u8 *)(p))[1] <<  8)))
+
+#define LE_READ_4(p)                            \
+    ((u32)                            \
+     ((((u8 *)(p))[0]      ) | (((u8 *)(p))[1] <<  8) | \
+      (((u8 *)(p))[2] << 16) | (((u8 *)(p))[3] << 24)))
+
+
+static int __inline
+iswpaoui(const u8 *frm)
+{
+    return frm[1] > 3 && LE_READ_4(frm+2) == ((WPA_OUI_TYPE<<24)|WPA_OUI);
+}
+
+static int __inline
+iswmmoui(const u8 *frm)
+{
+    return frm[1] > 3 && LE_READ_4(frm+2) == ((WMM_OUI_TYPE<<24)|WMM_OUI);
+}
+
+/* unused functions for now */
+#if 0
+static int __inline
+iswmmparam(const u8 *frm)
+{
+    return frm[1] > 5 && frm[6] == WMM_PARAM_OUI_SUBTYPE;
+}
+
+static int __inline
+iswmminfo(const u8 *frm)
+{
+    return frm[1] > 5 && frm[6] == WMM_INFO_OUI_SUBTYPE;
+}
+#endif
+
+static int __inline
+isatherosoui(const u8 *frm)
+{
+    return frm[1] > 3 && LE_READ_4(frm+2) == ((ATH_OUI_TYPE<<24)|ATH_OUI);
+}
+
+static int __inline
+iswscoui(const u8 *frm)
+{
+    return frm[1] > 3 && LE_READ_4(frm+2) == ((0x04<<24)|WPA_OUI);
+}
+
+int
+wlan_parse_beacon(u8 *buf, int framelen, struct ieee80211_common_ie *cie)
+{
+    u8 *frm, *efrm;
+    u8 elemid_ssid = false;
+
+    frm = buf;
+    efrm = (u8 *) (frm + framelen);
+
+    /*
+     * beacon/probe response frame format
+     *  [8] time stamp
+     *  [2] beacon interval
+     *  [2] capability information
+     *  [tlv] ssid
+     *  [tlv] supported rates
+     *  [tlv] country information
+     *  [tlv] parameter set (FH/DS)
+     *  [tlv] erp information
+     *  [tlv] extended supported rates
+     *  [tlv] WMM
+     *  [tlv] WPA or RSN
+     *  [tlv] Atheros Advanced Capabilities
+     */
+    IEEE80211_VERIFY_LENGTH(efrm - frm, 12);
+    A_MEMZERO(cie, sizeof(*cie));
+
+    cie->ie_tstamp = frm; frm += 8;
+    cie->ie_beaconInt = A_LE2CPU16(*(u16 *)frm);  frm += 2;
+    cie->ie_capInfo = A_LE2CPU16(*(u16 *)frm);  frm += 2;
+    cie->ie_chan = 0;
+
+    while (frm < efrm) {
+        switch (*frm) {
+        case IEEE80211_ELEMID_SSID:
+            if (!elemid_ssid) {
+                cie->ie_ssid = frm;
+                elemid_ssid = true;
+            }
+            break;
+        case IEEE80211_ELEMID_RATES:
+            cie->ie_rates = frm;
+            break;
+        case IEEE80211_ELEMID_COUNTRY:
+            cie->ie_country = frm;
+            break;
+        case IEEE80211_ELEMID_FHPARMS:
+            break;
+        case IEEE80211_ELEMID_DSPARMS:
+            cie->ie_chan = frm[2];
+            break;
+        case IEEE80211_ELEMID_TIM:
+            cie->ie_tim = frm;
+            break;
+        case IEEE80211_ELEMID_IBSSPARMS:
+            break;
+        case IEEE80211_ELEMID_XRATES:
+            cie->ie_xrates = frm;
+            break;
+        case IEEE80211_ELEMID_ERP:
+            if (frm[1] != 1) {
+                //A_PRINTF("Discarding ERP Element - Bad Len\n");
+                return A_EINVAL;
+            }
+            cie->ie_erp = frm[2];
+            break;
+        case IEEE80211_ELEMID_RSN:
+            cie->ie_rsn = frm;
+            break;
+        case IEEE80211_ELEMID_HTCAP_ANA:
+            cie->ie_htcap = frm;
+            break;
+        case IEEE80211_ELEMID_HTINFO_ANA:
+            cie->ie_htop = frm;
+            break;
+#ifdef WAPI_ENABLE
+                case IEEE80211_ELEMID_WAPI:
+            cie->ie_wapi = frm;
+            break;
+#endif
+        case IEEE80211_ELEMID_VENDOR:
+            if (iswpaoui(frm)) {
+                cie->ie_wpa = frm;
+            } else if (iswmmoui(frm)) {
+                cie->ie_wmm = frm;
+            } else if (isatherosoui(frm)) {
+                cie->ie_ath = frm;
+            } else if(iswscoui(frm)) {
+                cie->ie_wsc = frm;
+            }
+            break;
+        default:
+            break;
+        }
+        frm += frm[1] + 2;
+    }
+    IEEE80211_VERIFY_ELEMENT(cie->ie_rates, IEEE80211_RATE_MAXSIZE);
+    IEEE80211_VERIFY_ELEMENT(cie->ie_ssid, IEEE80211_NWID_LEN);
+
+    return 0;
+}
diff --git a/drivers/staging/ath6kl/wlan/src/wlan_utils.c b/drivers/staging/ath6kl/wlan/src/wlan_utils.c
new file mode 100644
index 00000000000..bc91599d9bf
--- /dev/null
+++ b/drivers/staging/ath6kl/wlan/src/wlan_utils.c
@@ -0,0 +1,58 @@
+//------------------------------------------------------------------------------
+// <copyright file="wlan_utils.c" company="Atheros">
+//    Copyright (c) 2004-2010 Atheros Corporation.  All rights reserved.
+// 
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+//
+//
+//------------------------------------------------------------------------------
+//==============================================================================
+// This module implements frequently used wlan utilies
+//
+// Author(s): ="Atheros"
+//==============================================================================
+#include <a_config.h>
+#include <athdefs.h>
+#include <a_osapi.h>
+
+/*
+ * converts ieee channel number to frequency
+ */
+u16 wlan_ieee2freq(int chan)
+{
+    if (chan == 14) {
+        return 2484;
+    }
+    if (chan < 14) {    /* 0-13 */
+        return (2407 + (chan*5));
+    }
+    if (chan < 27) {    /* 15-26 */
+        return (2512 + ((chan-15)*20));
+    }
+    return (5000 + (chan*5));
+}
+
+/*
+ * Converts MHz frequency to IEEE channel number.
+ */
+u32 wlan_freq2ieee(u16 freq)
+{
+    if (freq == 2484)
+        return 14;
+    if (freq < 2484)
+        return (freq - 2407) / 5;
+    if (freq < 5000)
+        return 15 + ((freq - 2512) / 20);
+    return (freq - 5000) / 5;
+}