drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h - kernel/msm-4.9 - Gitiles

 /*
  * Copyright (c) 2010 Broadcom Corporation
  *
  * 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.
  */

 #ifndef _wl_cfg80211_h_
 #define _wl_cfg80211_h_

 #define WL_NUM_SCAN_MAX			10
 #define WL_NUM_PMKIDS_MAX		MAXPMKID
 #define WL_TLV_INFO_MAX			1024
 #define WL_BSS_INFO_MAX			2048
 #define WL_ASSOC_INFO_MAX		512	/* assoc related fil max buf */
 #define WL_EXTRA_BUF_MAX		2048
 #define WL_ROAM_TRIGGER_LEVEL		-75
 #define WL_ROAM_DELTA			20
 #define WL_BEACON_TIMEOUT		3

 #define WL_SCAN_CHANNEL_TIME		40
 #define WL_SCAN_UNASSOC_TIME		40
 #define WL_SCAN_PASSIVE_TIME		120

 #define WL_ESCAN_BUF_SIZE		(1024 * 64)
 #define WL_ESCAN_TIMER_INTERVAL_MS	8000 /* E-Scan timeout */

 #define WL_ESCAN_ACTION_START		1
 #define WL_ESCAN_ACTION_CONTINUE	2
 #define WL_ESCAN_ACTION_ABORT		3

 #define WL_AUTH_SHARED_KEY		1	/* d11 shared authentication */
 #define IE_MAX_LEN			512

 /* IE TLV processing */
 #define TLV_LEN_OFF			1	/* length offset */
 #define TLV_HDR_LEN			2	/* header length */
 #define TLV_BODY_OFF			2	/* body offset */
 #define TLV_OUI_LEN			3	/* oui id length */

 /* 802.11 Mgmt Packet flags */
 #define BRCMF_VNDR_IE_BEACON_FLAG	0x1
 #define BRCMF_VNDR_IE_PRBRSP_FLAG	0x2
 #define BRCMF_VNDR_IE_ASSOCRSP_FLAG	0x4
 #define BRCMF_VNDR_IE_AUTHRSP_FLAG	0x8
 #define BRCMF_VNDR_IE_PRBREQ_FLAG	0x10
 #define BRCMF_VNDR_IE_ASSOCREQ_FLAG	0x20
 /* vendor IE in IW advertisement protocol ID field */
 #define BRCMF_VNDR_IE_IWAPID_FLAG	0x40
 /* allow custom IE id */
 #define BRCMF_VNDR_IE_CUSTOM_FLAG	0x100

 /* P2P Action Frames flags (spec ordered) */
 #define BRCMF_VNDR_IE_GONREQ_FLAG     0x001000
 #define BRCMF_VNDR_IE_GONRSP_FLAG     0x002000
 #define BRCMF_VNDR_IE_GONCFM_FLAG     0x004000
 #define BRCMF_VNDR_IE_INVREQ_FLAG     0x008000
 #define BRCMF_VNDR_IE_INVRSP_FLAG     0x010000
 #define BRCMF_VNDR_IE_DISREQ_FLAG     0x020000
 #define BRCMF_VNDR_IE_DISRSP_FLAG     0x040000
 #define BRCMF_VNDR_IE_PRDREQ_FLAG     0x080000
 #define BRCMF_VNDR_IE_PRDRSP_FLAG     0x100000

 #define BRCMF_VNDR_IE_P2PAF_SHIFT	12


 /**
  * enum brcmf_scan_status - dongle scan status
  *
  * @BRCMF_SCAN_STATUS_BUSY: scanning in progress on dongle.
  * @BRCMF_SCAN_STATUS_ABORT: scan being aborted on dongle.
  */
 enum brcmf_scan_status {
 	BRCMF_SCAN_STATUS_BUSY,
 	BRCMF_SCAN_STATUS_ABORT,
 };

 /**
  * enum wl_mode - driver mode of virtual interface.
  *
  * @WL_MODE_BSS: connects to BSS.
  * @WL_MODE_IBSS: operate as ad-hoc.
  * @WL_MODE_AP: operate as access-point.
  * @WL_MODE_P2P: provide P2P discovery.
  */
 enum wl_mode {
 	WL_MODE_BSS,
 	WL_MODE_IBSS,
 	WL_MODE_AP,
 	WL_MODE_P2P
 };

 /* dongle configuration */
 struct brcmf_cfg80211_conf {
 	u32 frag_threshold;
 	u32 rts_threshold;
 	u32 retry_short;
 	u32 retry_long;
 	s32 tx_power;
 	struct ieee80211_channel channel;
 };

 /* basic structure of scan request */
 struct brcmf_cfg80211_scan_req {
 	struct brcmf_ssid_le ssid_le;
 };

 /* basic structure of information element */
 struct brcmf_cfg80211_ie {
 	u16 offset;
 	u8 buf[WL_TLV_INFO_MAX];
 };

 /* security information with currently associated ap */
 struct brcmf_cfg80211_security {
 	u32 wpa_versions;
 	u32 auth_type;
 	u32 cipher_pairwise;
 	u32 cipher_group;
 	u32 wpa_auth;
 };

 /**
  * struct brcmf_cfg80211_profile - profile information.
  *
  * @ssid: ssid of associated/associating ap.
  * @bssid: bssid of joined/joining ibss.
  * @sec: security information.
  */
 struct brcmf_cfg80211_profile {
 	struct brcmf_ssid ssid;
 	u8 bssid[ETH_ALEN];
 	struct brcmf_cfg80211_security sec;
 };

 /**
  * enum brcmf_vif_status - bit indices for vif status.
  *
  * @BRCMF_VIF_STATUS_READY: ready for operation.
  * @BRCMF_VIF_STATUS_CONNECTING: connect/join in progress.
  * @BRCMF_VIF_STATUS_CONNECTED: connected/joined succesfully.
  * @BRCMF_VIF_STATUS_DISCONNECTING: disconnect/disable in progress.
  * @BRCMF_VIF_STATUS_AP_CREATING: interface configured for AP operation.
  * @BRCMF_VIF_STATUS_AP_CREATED: AP operation started.
  */
 enum brcmf_vif_status {
 	BRCMF_VIF_STATUS_READY,
 	BRCMF_VIF_STATUS_CONNECTING,
 	BRCMF_VIF_STATUS_CONNECTED,
 	BRCMF_VIF_STATUS_DISCONNECTING,
 	BRCMF_VIF_STATUS_AP_CREATING,
 	BRCMF_VIF_STATUS_AP_CREATED
 };

 /**
  * struct vif_saved_ie - holds saved IEs for a virtual interface.
  *
  * @probe_req_ie: IE info for probe request.
  * @probe_res_ie: IE info for probe response.
  * @beacon_ie: IE info for beacon frame.
  * @probe_req_ie_len: IE info length for probe request.
  * @probe_res_ie_len: IE info length for probe response.
  * @beacon_ie_len: IE info length for beacon frame.
  */
 struct vif_saved_ie {
 	u8  probe_req_ie[IE_MAX_LEN];
 	u8  probe_res_ie[IE_MAX_LEN];
 	u8  beacon_ie[IE_MAX_LEN];
 	u8  assoc_req_ie[IE_MAX_LEN];
 	u32 probe_req_ie_len;
 	u32 probe_res_ie_len;
 	u32 beacon_ie_len;
 	u32 assoc_req_ie_len;
 };

 /**
  * struct brcmf_cfg80211_vif - virtual interface specific information.
  *
  * @ifp: lower layer interface pointer
  * @wdev: wireless device.
  * @profile: profile information.
  * @mode: operating mode.
  * @roam_off: roaming state.
  * @sme_state: SME state using enum brcmf_vif_status bits.
  * @pm_block: power-management blocked.
  * @list: linked list.
  * @mgmt_rx_reg: registered rx mgmt frame types.
  */
 struct brcmf_cfg80211_vif {
 	struct brcmf_if *ifp;
 	struct wireless_dev wdev;
 	struct brcmf_cfg80211_profile profile;
 	s32 mode;
 	s32 roam_off;
 	unsigned long sme_state;
 	bool pm_block;
 	struct vif_saved_ie saved_ie;
 	struct list_head list;
 	u16 mgmt_rx_reg;
 };

 /* association inform */
 struct brcmf_cfg80211_connect_info {
 	u8 *req_ie;
 	s32 req_ie_len;
 	u8 *resp_ie;
 	s32 resp_ie_len;
 };

 /* assoc ie length */
 struct brcmf_cfg80211_assoc_ielen_le {
 	__le32 req_len;
 	__le32 resp_len;
 };

 /* wpa2 pmk list */
 struct brcmf_cfg80211_pmk_list {
 	struct pmkid_list pmkids;
 	struct pmkid foo[MAXPMKID - 1];
 };

 /* dongle escan state */
 enum wl_escan_state {
 	WL_ESCAN_STATE_IDLE,
 	WL_ESCAN_STATE_SCANNING
 };

 struct escan_info {
 	u32 escan_state;
 	u8 escan_buf[WL_ESCAN_BUF_SIZE];
 	struct wiphy *wiphy;
 	struct net_device *ndev;
 	s32 (*run)(struct brcmf_cfg80211_info *cfg,
 		   struct net_device *ndev,
 		   struct cfg80211_scan_request *request, u16 action);
 };

 /**
  * struct brcmf_pno_param_le - PNO scan configuration parameters
  *
  * @version: PNO parameters version.
  * @scan_freq: scan frequency.
  * @lost_network_timeout: #sec. to declare discovered network as lost.
  * @flags: Bit field to control features of PFN such as sort criteria auto
  *	enable switch and background scan.
  * @rssi_margin: Margin to avoid jitter for choosing a PFN based on RSSI sort
  *	criteria.
  * @bestn: number of best networks in each scan.
  * @mscan: number of scans recorded.
  * @repeat: minimum number of scan intervals before scan frequency changes
  *	in adaptive scan.
  * @exp: exponent of 2 for maximum scan interval.
  * @slow_freq: slow scan period.
  */
 struct brcmf_pno_param_le {
 	__le32 version;
 	__le32 scan_freq;
 	__le32 lost_network_timeout;
 	__le16 flags;
 	__le16 rssi_margin;
 	u8 bestn;
 	u8 mscan;
 	u8 repeat;
 	u8 exp;
 	__le32 slow_freq;
 };

 /**
  * struct brcmf_pno_net_param_le - scan parameters per preferred network.
  *
  * @ssid: ssid name and its length.
  * @flags: bit2: hidden.
  * @infra: BSS vs IBSS.
  * @auth: Open vs Closed.
  * @wpa_auth: WPA type.
  * @wsec: wsec value.
  */
 struct brcmf_pno_net_param_le {
 	struct brcmf_ssid_le ssid;
 	__le32 flags;
 	__le32 infra;
 	__le32 auth;
 	__le32 wpa_auth;
 	__le32 wsec;
 };

 /**
  * struct brcmf_pno_net_info_le - information per found network.
  *
  * @bssid: BSS network identifier.
  * @channel: channel number only.
  * @SSID_len: length of ssid.
  * @SSID: ssid characters.
  * @RSSI: receive signal strength (in dBm).
  * @timestamp: age in seconds.
  */
 struct brcmf_pno_net_info_le {
 	u8 bssid[ETH_ALEN];
 	u8 channel;
 	u8 SSID_len;
 	u8 SSID[32];
 	__le16	RSSI;
 	__le16	timestamp;
 };

 /**
  * struct brcmf_pno_scanresults_le - result returned in PNO NET FOUND event.
  *
  * @version: PNO version identifier.
  * @status: indicates completion status of PNO scan.
  * @count: amount of brcmf_pno_net_info_le entries appended.
  */
 struct brcmf_pno_scanresults_le {
 	__le32 version;
 	__le32 status;
 	__le32 count;
 };

 /**
  * struct brcmf_cfg80211_vif_event - virtual interface event information.
  *
  * @vif_wq: waitqueue awaiting interface event from firmware.
  * @vif_event_lock: protects other members in this structure.
  * @vif_complete: completion for net attach.
  * @action: either add, change, or delete.
  * @vif: virtual interface object related to the event.
  */
 struct brcmf_cfg80211_vif_event {
 	wait_queue_head_t vif_wq;
 	struct mutex vif_event_lock;
 	u8 action;
 	struct brcmf_cfg80211_vif *vif;
 };

 /**
  * struct brcmf_cfg80211_info - dongle private data of cfg80211 interface
  *
  * @wiphy: wiphy object for cfg80211 interface.
  * @conf: dongle configuration.
  * @p2p: peer-to-peer specific information.
  * @scan_request: cfg80211 scan request object.
  * @usr_sync: mainly for dongle up/down synchronization.
  * @bss_list: bss_list holding scanned ap information.
  * @scan_req_int: internal scan request object.
  * @bss_info: bss information for cfg80211 layer.
  * @ie: information element object for internal purpose.
  * @conn_info: association info.
  * @pmk_list: wpa2 pmk list.
  * @scan_status: scan activity on the dongle.
  * @pub: common driver information.
  * @channel: current channel.
  * @active_scan: current scan mode.
  * @sched_escan: e-scan for scheduled scan support running.
  * @ibss_starter: indicates this sta is ibss starter.
  * @pwr_save: indicate whether dongle to support power save mode.
  * @dongle_up: indicate whether dongle up or not.
  * @roam_on: on/off switch for dongle self-roaming.
  * @scan_tried: indicates if first scan attempted.
  * @dcmd_buf: dcmd buffer.
  * @extra_buf: mainly to grab assoc information.
  * @debugfsdir: debugfs folder for this device.
  * @escan_info: escan information.
  * @escan_timeout: Timer for catch scan timeout.
  * @escan_timeout_work: scan timeout worker.
  * @escan_ioctl_buf: dongle command buffer for escan commands.
  * @vif_list: linked list of vif instances.
  * @vif_cnt: number of vif instances.
  * @vif_event: vif event signalling.
  */
 struct brcmf_cfg80211_info {
 	struct wiphy *wiphy;
 	struct brcmf_cfg80211_conf *conf;
 	struct brcmf_p2p_info p2p;
 	struct cfg80211_scan_request *scan_request;
 	struct mutex usr_sync;
 	struct brcmf_scan_results *bss_list;
 	struct brcmf_cfg80211_scan_req scan_req_int;
 	struct wl_cfg80211_bss_info *bss_info;
 	struct brcmf_cfg80211_ie ie;
 	struct brcmf_cfg80211_connect_info conn_info;
 	struct brcmf_cfg80211_pmk_list *pmk_list;
 	unsigned long scan_status;
 	struct brcmf_pub *pub;
 	u32 channel;
 	bool active_scan;
 	bool sched_escan;
 	bool ibss_starter;
 	bool pwr_save;
 	bool dongle_up;
 	bool roam_on;
 	bool scan_tried;
 	u8 *dcmd_buf;
 	u8 *extra_buf;
 	struct dentry *debugfsdir;
 	struct escan_info escan_info;
 	struct timer_list escan_timeout;
 	struct work_struct escan_timeout_work;
 	u8 *escan_ioctl_buf;
 	struct list_head vif_list;
 	u8 vif_cnt;
 	struct brcmf_cfg80211_vif_event vif_event;
 	struct completion vif_disabled;
 };

 /**
  * struct brcmf_tlv - tag_ID/length/value_buffer tuple.
  *
  * @id: tag identifier.
  * @len: number of bytes in value buffer.
  * @data: value buffer.
  */
 struct brcmf_tlv {
 	u8 id;
 	u8 len;
 	u8 data[1];
 };

 static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_info *cfg)
 {
 	return cfg->wiphy;
 }

 static inline struct brcmf_cfg80211_info *wiphy_to_cfg(struct wiphy *w)
 {
 	return (struct brcmf_cfg80211_info *)(wiphy_priv(w));
 }

 static inline struct brcmf_cfg80211_info *wdev_to_cfg(struct wireless_dev *wd)
 {
 	return (struct brcmf_cfg80211_info *)(wdev_priv(wd));
 }

 static inline
 struct net_device *cfg_to_ndev(struct brcmf_cfg80211_info *cfg)
 {
 	struct brcmf_cfg80211_vif *vif;
 	vif = list_first_entry(&cfg->vif_list, struct brcmf_cfg80211_vif, list);
 	return vif->wdev.netdev;
 }

 static inline struct brcmf_cfg80211_info *ndev_to_cfg(struct net_device *ndev)
 {
 	return wdev_to_cfg(ndev->ieee80211_ptr);
 }

 static inline struct brcmf_cfg80211_profile *ndev_to_prof(struct net_device *nd)
 {
 	struct brcmf_if *ifp = netdev_priv(nd);
 	return &ifp->vif->profile;
 }

 static inline struct brcmf_cfg80211_vif *ndev_to_vif(struct net_device *ndev)
 {
 	struct brcmf_if *ifp = netdev_priv(ndev);
 	return ifp->vif;
 }

 static inline struct
 brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_info *cfg)
 {
 	return &cfg->conn_info;
 }

 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
 						  struct device *busdev);
 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg);
 s32 brcmf_cfg80211_up(struct net_device *ndev);
 s32 brcmf_cfg80211_down(struct net_device *ndev);

 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
 					   enum nl80211_iftype type,
 					   bool pm_block);
 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif);

 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
 			  const u8 *vndr_ie_buf, u32 vndr_ie_len);
 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif);
 struct brcmf_tlv *brcmf_parse_tlvs(void *buf, int buflen, uint key);
 u16 channel_to_chanspec(struct ieee80211_channel *ch);
 u32 wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state);
 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
 				  struct brcmf_cfg80211_vif *vif);
 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg);
 int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
 					  u8 action, ulong timeout);
 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
 				struct net_device *ndev,
 				bool aborted, bool fw_abort);
 void brcmf_set_mpc(struct net_device *ndev, int mpc);
 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg);

 #endif				/* _wl_cfg80211_h_ */
	/*
	* Copyright (c) 2010 Broadcom Corporation
	*
	* 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.
	*/

	#ifndef _wl_cfg80211_h_
	#define _wl_cfg80211_h_

	#define WL_NUM_SCAN_MAX 10
	#define WL_NUM_PMKIDS_MAX MAXPMKID
	#define WL_TLV_INFO_MAX 1024
	#define WL_BSS_INFO_MAX 2048
	#define WL_ASSOC_INFO_MAX 512 /* assoc related fil max buf */
	#define WL_EXTRA_BUF_MAX 2048
	#define WL_ROAM_TRIGGER_LEVEL -75
	#define WL_ROAM_DELTA 20
	#define WL_BEACON_TIMEOUT 3

	#define WL_SCAN_CHANNEL_TIME 40
	#define WL_SCAN_UNASSOC_TIME 40
	#define WL_SCAN_PASSIVE_TIME 120

	#define WL_ESCAN_BUF_SIZE (1024 * 64)
	#define WL_ESCAN_TIMER_INTERVAL_MS 8000 /* E-Scan timeout */

	#define WL_ESCAN_ACTION_START 1
	#define WL_ESCAN_ACTION_CONTINUE 2
	#define WL_ESCAN_ACTION_ABORT 3

	#define WL_AUTH_SHARED_KEY 1 /* d11 shared authentication */
	#define IE_MAX_LEN 512

	/* IE TLV processing */
	#define TLV_LEN_OFF 1 /* length offset */
	#define TLV_HDR_LEN 2 /* header length */
	#define TLV_BODY_OFF 2 /* body offset */
	#define TLV_OUI_LEN 3 /* oui id length */

	/* 802.11 Mgmt Packet flags */
	#define BRCMF_VNDR_IE_BEACON_FLAG 0x1
	#define BRCMF_VNDR_IE_PRBRSP_FLAG 0x2
	#define BRCMF_VNDR_IE_ASSOCRSP_FLAG 0x4
	#define BRCMF_VNDR_IE_AUTHRSP_FLAG 0x8
	#define BRCMF_VNDR_IE_PRBREQ_FLAG 0x10
	#define BRCMF_VNDR_IE_ASSOCREQ_FLAG 0x20
	/* vendor IE in IW advertisement protocol ID field */
	#define BRCMF_VNDR_IE_IWAPID_FLAG 0x40
	/* allow custom IE id */
	#define BRCMF_VNDR_IE_CUSTOM_FLAG 0x100

	/* P2P Action Frames flags (spec ordered) */
	#define BRCMF_VNDR_IE_GONREQ_FLAG 0x001000
	#define BRCMF_VNDR_IE_GONRSP_FLAG 0x002000
	#define BRCMF_VNDR_IE_GONCFM_FLAG 0x004000
	#define BRCMF_VNDR_IE_INVREQ_FLAG 0x008000
	#define BRCMF_VNDR_IE_INVRSP_FLAG 0x010000
	#define BRCMF_VNDR_IE_DISREQ_FLAG 0x020000
	#define BRCMF_VNDR_IE_DISRSP_FLAG 0x040000
	#define BRCMF_VNDR_IE_PRDREQ_FLAG 0x080000
	#define BRCMF_VNDR_IE_PRDRSP_FLAG 0x100000

	#define BRCMF_VNDR_IE_P2PAF_SHIFT 12


	/**
	* enum brcmf_scan_status - dongle scan status
	*
	* @BRCMF_SCAN_STATUS_BUSY: scanning in progress on dongle.
	* @BRCMF_SCAN_STATUS_ABORT: scan being aborted on dongle.
	*/
	enum brcmf_scan_status {
	BRCMF_SCAN_STATUS_BUSY,
	BRCMF_SCAN_STATUS_ABORT,
	};

	/**
	* enum wl_mode - driver mode of virtual interface.
	*
	* @WL_MODE_BSS: connects to BSS.
	* @WL_MODE_IBSS: operate as ad-hoc.
	* @WL_MODE_AP: operate as access-point.
	* @WL_MODE_P2P: provide P2P discovery.
	*/
	enum wl_mode {
	WL_MODE_BSS,
	WL_MODE_IBSS,
	WL_MODE_AP,
	WL_MODE_P2P
	};

	/* dongle configuration */
	struct brcmf_cfg80211_conf {
	u32 frag_threshold;
	u32 rts_threshold;
	u32 retry_short;
	u32 retry_long;
	s32 tx_power;
	struct ieee80211_channel channel;
	};

	/* basic structure of scan request */
	struct brcmf_cfg80211_scan_req {
	struct brcmf_ssid_le ssid_le;
	};

	/* basic structure of information element */
	struct brcmf_cfg80211_ie {
	u16 offset;
	u8 buf[WL_TLV_INFO_MAX];
	};

	/* security information with currently associated ap */
	struct brcmf_cfg80211_security {
	u32 wpa_versions;
	u32 auth_type;
	u32 cipher_pairwise;
	u32 cipher_group;
	u32 wpa_auth;
	};

	/**
	* struct brcmf_cfg80211_profile - profile information.
	*
	* @ssid: ssid of associated/associating ap.
	* @bssid: bssid of joined/joining ibss.
	* @sec: security information.
	*/
	struct brcmf_cfg80211_profile {
	struct brcmf_ssid ssid;
	u8 bssid[ETH_ALEN];
	struct brcmf_cfg80211_security sec;
	};

	/**
	* enum brcmf_vif_status - bit indices for vif status.
	*
	* @BRCMF_VIF_STATUS_READY: ready for operation.
	* @BRCMF_VIF_STATUS_CONNECTING: connect/join in progress.
	* @BRCMF_VIF_STATUS_CONNECTED: connected/joined succesfully.
	* @BRCMF_VIF_STATUS_DISCONNECTING: disconnect/disable in progress.
	* @BRCMF_VIF_STATUS_AP_CREATING: interface configured for AP operation.
	* @BRCMF_VIF_STATUS_AP_CREATED: AP operation started.
	*/
	enum brcmf_vif_status {
	BRCMF_VIF_STATUS_READY,
	BRCMF_VIF_STATUS_CONNECTING,
	BRCMF_VIF_STATUS_CONNECTED,
	BRCMF_VIF_STATUS_DISCONNECTING,
	BRCMF_VIF_STATUS_AP_CREATING,
	BRCMF_VIF_STATUS_AP_CREATED
	};

	/**
	* struct vif_saved_ie - holds saved IEs for a virtual interface.
	*
	* @probe_req_ie: IE info for probe request.
	* @probe_res_ie: IE info for probe response.
	* @beacon_ie: IE info for beacon frame.
	* @probe_req_ie_len: IE info length for probe request.
	* @probe_res_ie_len: IE info length for probe response.
	* @beacon_ie_len: IE info length for beacon frame.
	*/
	struct vif_saved_ie {
	u8 probe_req_ie[IE_MAX_LEN];
	u8 probe_res_ie[IE_MAX_LEN];
	u8 beacon_ie[IE_MAX_LEN];
	u8 assoc_req_ie[IE_MAX_LEN];
	u32 probe_req_ie_len;
	u32 probe_res_ie_len;
	u32 beacon_ie_len;
	u32 assoc_req_ie_len;
	};

	/**
	* struct brcmf_cfg80211_vif - virtual interface specific information.
	*
	* @ifp: lower layer interface pointer
	* @wdev: wireless device.
	* @profile: profile information.
	* @mode: operating mode.
	* @roam_off: roaming state.
	* @sme_state: SME state using enum brcmf_vif_status bits.
	* @pm_block: power-management blocked.
	* @list: linked list.
	* @mgmt_rx_reg: registered rx mgmt frame types.
	*/
	struct brcmf_cfg80211_vif {
	struct brcmf_if *ifp;
	struct wireless_dev wdev;
	struct brcmf_cfg80211_profile profile;
	s32 mode;
	s32 roam_off;
	unsigned long sme_state;
	bool pm_block;
	struct vif_saved_ie saved_ie;
	struct list_head list;
	u16 mgmt_rx_reg;
	};

	/* association inform */
	struct brcmf_cfg80211_connect_info {
	u8 *req_ie;
	s32 req_ie_len;
	u8 *resp_ie;
	s32 resp_ie_len;
	};

	/* assoc ie length */
	struct brcmf_cfg80211_assoc_ielen_le {
	__le32 req_len;
	__le32 resp_len;
	};

	/* wpa2 pmk list */
	struct brcmf_cfg80211_pmk_list {
	struct pmkid_list pmkids;
	struct pmkid foo[MAXPMKID - 1];
	};

	/* dongle escan state */
	enum wl_escan_state {
	WL_ESCAN_STATE_IDLE,
	WL_ESCAN_STATE_SCANNING
	};

	struct escan_info {
	u32 escan_state;
	u8 escan_buf[WL_ESCAN_BUF_SIZE];
	struct wiphy *wiphy;
	struct net_device *ndev;
	s32 (run)(struct brcmf_cfg80211_info cfg,
	struct net_device *ndev,
	struct cfg80211_scan_request *request, u16 action);
	};

	/**
	* struct brcmf_pno_param_le - PNO scan configuration parameters
	*
	* @version: PNO parameters version.
	* @scan_freq: scan frequency.
	* @lost_network_timeout: #sec. to declare discovered network as lost.
	* @flags: Bit field to control features of PFN such as sort criteria auto
	* enable switch and background scan.
	* @rssi_margin: Margin to avoid jitter for choosing a PFN based on RSSI sort
	* criteria.
	* @bestn: number of best networks in each scan.
	* @mscan: number of scans recorded.
	* @repeat: minimum number of scan intervals before scan frequency changes
	* in adaptive scan.
	* @exp: exponent of 2 for maximum scan interval.
	* @slow_freq: slow scan period.
	*/
	struct brcmf_pno_param_le {
	__le32 version;
	__le32 scan_freq;
	__le32 lost_network_timeout;
	__le16 flags;
	__le16 rssi_margin;
	u8 bestn;
	u8 mscan;
	u8 repeat;
	u8 exp;
	__le32 slow_freq;
	};

	/**
	* struct brcmf_pno_net_param_le - scan parameters per preferred network.
	*
	* @ssid: ssid name and its length.
	* @flags: bit2: hidden.
	* @infra: BSS vs IBSS.
	* @auth: Open vs Closed.
	* @wpa_auth: WPA type.
	* @wsec: wsec value.
	*/
	struct brcmf_pno_net_param_le {
	struct brcmf_ssid_le ssid;
	__le32 flags;
	__le32 infra;
	__le32 auth;
	__le32 wpa_auth;
	__le32 wsec;
	};

	/**
	* struct brcmf_pno_net_info_le - information per found network.
	*
	* @bssid: BSS network identifier.
	* @channel: channel number only.
	* @SSID_len: length of ssid.
	* @SSID: ssid characters.
	* @RSSI: receive signal strength (in dBm).
	* @timestamp: age in seconds.
	*/
	struct brcmf_pno_net_info_le {
	u8 bssid[ETH_ALEN];
	u8 channel;
	u8 SSID_len;
	u8 SSID[32];
	__le16 RSSI;
	__le16 timestamp;
	};

	/**
	* struct brcmf_pno_scanresults_le - result returned in PNO NET FOUND event.
	*
	* @version: PNO version identifier.
	* @status: indicates completion status of PNO scan.
	* @count: amount of brcmf_pno_net_info_le entries appended.
	*/
	struct brcmf_pno_scanresults_le {
	__le32 version;
	__le32 status;
	__le32 count;
	};

	/**
	* struct brcmf_cfg80211_vif_event - virtual interface event information.
	*
	* @vif_wq: waitqueue awaiting interface event from firmware.
	* @vif_event_lock: protects other members in this structure.
	* @vif_complete: completion for net attach.
	* @action: either add, change, or delete.
	* @vif: virtual interface object related to the event.
	*/
	struct brcmf_cfg80211_vif_event {
	wait_queue_head_t vif_wq;
	struct mutex vif_event_lock;
	u8 action;
	struct brcmf_cfg80211_vif *vif;
	};

	/**
	* struct brcmf_cfg80211_info - dongle private data of cfg80211 interface
	*
	* @wiphy: wiphy object for cfg80211 interface.
	* @conf: dongle configuration.
	* @p2p: peer-to-peer specific information.
	* @scan_request: cfg80211 scan request object.
	* @usr_sync: mainly for dongle up/down synchronization.
	* @bss_list: bss_list holding scanned ap information.
	* @scan_req_int: internal scan request object.
	* @bss_info: bss information for cfg80211 layer.
	* @ie: information element object for internal purpose.
	* @conn_info: association info.
	* @pmk_list: wpa2 pmk list.
	* @scan_status: scan activity on the dongle.
	* @pub: common driver information.
	* @channel: current channel.
	* @active_scan: current scan mode.
	* @sched_escan: e-scan for scheduled scan support running.
	* @ibss_starter: indicates this sta is ibss starter.
	* @pwr_save: indicate whether dongle to support power save mode.
	* @dongle_up: indicate whether dongle up or not.
	* @roam_on: on/off switch for dongle self-roaming.
	* @scan_tried: indicates if first scan attempted.
	* @dcmd_buf: dcmd buffer.
	* @extra_buf: mainly to grab assoc information.
	* @debugfsdir: debugfs folder for this device.
	* @escan_info: escan information.
	* @escan_timeout: Timer for catch scan timeout.
	* @escan_timeout_work: scan timeout worker.
	* @escan_ioctl_buf: dongle command buffer for escan commands.
	* @vif_list: linked list of vif instances.
	* @vif_cnt: number of vif instances.
	* @vif_event: vif event signalling.
	*/
	struct brcmf_cfg80211_info {
	struct wiphy *wiphy;
	struct brcmf_cfg80211_conf *conf;
	struct brcmf_p2p_info p2p;
	struct cfg80211_scan_request *scan_request;
	struct mutex usr_sync;
	struct brcmf_scan_results *bss_list;
	struct brcmf_cfg80211_scan_req scan_req_int;
	struct wl_cfg80211_bss_info *bss_info;
	struct brcmf_cfg80211_ie ie;
	struct brcmf_cfg80211_connect_info conn_info;
	struct brcmf_cfg80211_pmk_list *pmk_list;
	unsigned long scan_status;
	struct brcmf_pub *pub;
	u32 channel;
	bool active_scan;
	bool sched_escan;
	bool ibss_starter;
	bool pwr_save;
	bool dongle_up;
	bool roam_on;
	bool scan_tried;
	u8 *dcmd_buf;
	u8 *extra_buf;
	struct dentry *debugfsdir;
	struct escan_info escan_info;
	struct timer_list escan_timeout;
	struct work_struct escan_timeout_work;
	u8 *escan_ioctl_buf;
	struct list_head vif_list;
	u8 vif_cnt;
	struct brcmf_cfg80211_vif_event vif_event;
	struct completion vif_disabled;
	};

	/**
	* struct brcmf_tlv - tag_ID/length/value_buffer tuple.
	*
	* @id: tag identifier.
	* @len: number of bytes in value buffer.
	* @data: value buffer.
	*/
	struct brcmf_tlv {
	u8 id;
	u8 len;
	u8 data[1];
	};

	static inline struct wiphy cfg_to_wiphy(struct brcmf_cfg80211_info cfg)
	{
	return cfg->wiphy;
	}

	static inline struct brcmf_cfg80211_info wiphy_to_cfg(struct wiphy w)
	{
	return (struct brcmf_cfg80211_info *)(wiphy_priv(w));
	}

	static inline struct brcmf_cfg80211_info wdev_to_cfg(struct wireless_dev wd)
	{
	return (struct brcmf_cfg80211_info *)(wdev_priv(wd));
	}

	static inline
	struct net_device cfg_to_ndev(struct brcmf_cfg80211_info cfg)
	{
	struct brcmf_cfg80211_vif *vif;
	vif = list_first_entry(&cfg->vif_list, struct brcmf_cfg80211_vif, list);
	return vif->wdev.netdev;
	}

	static inline struct brcmf_cfg80211_info ndev_to_cfg(struct net_device ndev)
	{
	return wdev_to_cfg(ndev->ieee80211_ptr);
	}

	static inline struct brcmf_cfg80211_profile ndev_to_prof(struct net_device nd)
	{
	struct brcmf_if *ifp = netdev_priv(nd);
	return &ifp->vif->profile;
	}

	static inline struct brcmf_cfg80211_vif ndev_to_vif(struct net_device ndev)
	{
	struct brcmf_if *ifp = netdev_priv(ndev);
	return ifp->vif;
	}

	static inline struct
	brcmf_cfg80211_connect_info cfg_to_conn(struct brcmf_cfg80211_info cfg)
	{
	return &cfg->conn_info;
	}

	struct brcmf_cfg80211_info brcmf_cfg80211_attach(struct brcmf_pub drvr,
	struct device *busdev);
	void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg);
	s32 brcmf_cfg80211_up(struct net_device *ndev);
	s32 brcmf_cfg80211_down(struct net_device *ndev);

	struct brcmf_cfg80211_vif brcmf_alloc_vif(struct brcmf_cfg80211_info cfg,
	enum nl80211_iftype type,
	bool pm_block);
	void brcmf_free_vif(struct brcmf_cfg80211_vif *vif);

	s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
	const u8 *vndr_ie_buf, u32 vndr_ie_len);
	s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif);
	struct brcmf_tlv brcmf_parse_tlvs(void buf, int buflen, uint key);
	u16 channel_to_chanspec(struct ieee80211_channel *ch);
	u32 wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state);
	void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
	struct brcmf_cfg80211_vif *vif);
	bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg);
	int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
	u8 action, ulong timeout);
	s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
	struct net_device *ndev,
	bool aborted, bool fw_abort);
	void brcmf_set_mpc(struct net_device *ndev, int mpc);
	void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg);

	#endif /* _wl_cfg80211_h_ */