drivers/net/wireless/brcm80211/brcmfmac/p2p.h - vendor/opensource/backports - Git at Google

 /*
  * Copyright (c) 2012 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_CFGP2P_H_
 #define WL_CFGP2P_H_

 #include <net/cfg80211.h>

 struct brcmf_cfg80211_info;

 /**
  * enum p2p_bss_type - different type of BSS configurations.
  *
  * @P2PAPI_BSSCFG_PRIMARY: maps to driver's primary bsscfg.
  * @P2PAPI_BSSCFG_DEVICE: maps to driver's P2P device discovery bsscfg.
  * @P2PAPI_BSSCFG_CONNECTION: maps to driver's P2P connection bsscfg.
  * @P2PAPI_BSSCFG_MAX: used for range checking.
  */
 enum p2p_bss_type {
 	P2PAPI_BSSCFG_PRIMARY, /* maps to driver's primary bsscfg */
 	P2PAPI_BSSCFG_DEVICE, /* maps to driver's P2P device discovery bsscfg */
 	P2PAPI_BSSCFG_CONNECTION, /* maps to driver's P2P connection bsscfg */
 	P2PAPI_BSSCFG_MAX
 };

 /**
  * struct p2p_bss - peer-to-peer bss related information.
  *
  * @vif: virtual interface of this P2P bss.
  * @private_data: TBD
  */
 struct p2p_bss {
 	struct brcmf_cfg80211_vif *vif;
 	void *private_data;
 };

 /**
  * enum brcmf_p2p_status - P2P specific dongle status.
  *
  * @BRCMF_P2P_STATUS_IF_ADD: peer-to-peer vif add sent to dongle.
  * @BRCMF_P2P_STATUS_IF_DEL: NOT-USED?
  * @BRCMF_P2P_STATUS_IF_DELETING: peer-to-peer vif delete sent to dongle.
  * @BRCMF_P2P_STATUS_IF_CHANGING: peer-to-peer vif change sent to dongle.
  * @BRCMF_P2P_STATUS_IF_CHANGED: peer-to-peer vif change completed on dongle.
  * @BRCMF_P2P_STATUS_ACTION_TX_COMPLETED: action frame tx completed.
  * @BRCMF_P2P_STATUS_ACTION_TX_NOACK: action frame tx not acked.
  * @BRCMF_P2P_STATUS_GO_NEG_PHASE: P2P GO negotiation ongoing.
  * @BRCMF_P2P_STATUS_DISCOVER_LISTEN: P2P listen, remaining on channel.
  * @BRCMF_P2P_STATUS_SENDING_ACT_FRAME: In the process of sending action frame.
  * @BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN: extra listen time for af tx.
  * @BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME: waiting for action frame response.
  * @BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL: search channel for AF active.
  */
 enum brcmf_p2p_status {
 	BRCMF_P2P_STATUS_ENABLED,
 	BRCMF_P2P_STATUS_IF_ADD,
 	BRCMF_P2P_STATUS_IF_DEL,
 	BRCMF_P2P_STATUS_IF_DELETING,
 	BRCMF_P2P_STATUS_IF_CHANGING,
 	BRCMF_P2P_STATUS_IF_CHANGED,
 	BRCMF_P2P_STATUS_ACTION_TX_COMPLETED,
 	BRCMF_P2P_STATUS_ACTION_TX_NOACK,
 	BRCMF_P2P_STATUS_GO_NEG_PHASE,
 	BRCMF_P2P_STATUS_DISCOVER_LISTEN,
 	BRCMF_P2P_STATUS_SENDING_ACT_FRAME,
 	BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN,
 	BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME,
 	BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL
 };

 /**
  * struct afx_hdl - action frame off channel storage.
  *
  * @afx_work: worker thread for searching channel
  * @act_frm_scan: thread synchronizing struct.
  * @is_active: channel searching active.
  * @peer_chan: current channel.
  * @is_listen: sets mode for afx worker.
  * @my_listen_chan: this peers listen channel.
  * @peer_listen_chan: remote peers listen channel.
  * @tx_dst_addr: mac address where tx af should be sent to.
  */
 struct afx_hdl {
 	struct work_struct afx_work;
 	struct completion act_frm_scan;
 	bool is_active;
 	s32 peer_chan;
 	bool is_listen;
 	u16 my_listen_chan;
 	u16 peer_listen_chan;
 	u8 tx_dst_addr[ETH_ALEN];
 };

 /**
  * struct brcmf_p2p_info - p2p specific driver information.
  *
  * @cfg: driver private data for cfg80211 interface.
  * @status: status of P2P (see enum brcmf_p2p_status).
  * @dev_addr: P2P device address.
  * @int_addr: P2P interface address.
  * @bss_idx: informate for P2P bss types.
  * @listen_timer: timer for @WL_P2P_DISC_ST_LISTEN discover state.
  * @ssid: ssid for P2P GO.
  * @listen_channel: channel for @WL_P2P_DISC_ST_LISTEN discover state.
  * @remain_on_channel: contains copy of struct used by cfg80211.
  * @remain_on_channel_cookie: cookie counter for remain on channel cmd
  * @next_af_subtype: expected action frame subtype.
  * @send_af_done: indication that action frame tx is complete.
  * @afx_hdl: action frame search handler info.
  * @af_sent_channel: channel action frame is sent.
  * @af_tx_sent_jiffies: jiffies time when af tx was transmitted.
  * @wait_next_af: thread synchronizing struct.
  * @gon_req_action: about to send go negotiation requets frame.
  * @block_gon_req_tx: drop tx go negotiation requets frame.
  */
 struct brcmf_p2p_info {
 	struct brcmf_cfg80211_info *cfg;
 	unsigned long status;
 	u8 dev_addr[ETH_ALEN];
 	u8 int_addr[ETH_ALEN];
 	struct p2p_bss bss_idx[P2PAPI_BSSCFG_MAX];
 	struct timer_list listen_timer;
 	struct brcmf_ssid ssid;
 	u8 listen_channel;
 	struct ieee80211_channel remain_on_channel;
 	u32 remain_on_channel_cookie;
 	u8 next_af_subtype;
 	struct completion send_af_done;
 	struct afx_hdl afx_hdl;
 	u32 af_sent_channel;
 	unsigned long af_tx_sent_jiffies;
 	struct completion wait_next_af;
 	bool gon_req_action;
 	bool block_gon_req_tx;
 };

 s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg);
 void brcmf_p2p_detach(struct brcmf_p2p_info *p2p);
 struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name,
 				       unsigned char name_assign_type,
 				       enum nl80211_iftype type, u32 *flags,
 				       struct vif_params *params);
 int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev);
 int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg,
 		       enum brcmf_fil_p2p_if_types if_type);
 int brcmf_p2p_start_device(struct wiphy *wiphy, struct wireless_dev *wdev);
 void brcmf_p2p_stop_device(struct wiphy *wiphy, struct wireless_dev *wdev);
 int brcmf_p2p_scan_prep(struct wiphy *wiphy,
 			struct cfg80211_scan_request *request,
 			struct brcmf_cfg80211_vif *vif);
 int brcmf_p2p_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
 				struct ieee80211_channel *channel,
 				unsigned int duration, u64 *cookie);
 int brcmf_p2p_notify_listen_complete(struct brcmf_if *ifp,
 				     const struct brcmf_event_msg *e,
 				     void *data);
 void brcmf_p2p_cancel_remain_on_channel(struct brcmf_if *ifp);
 int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
 				     const struct brcmf_event_msg *e,
 				     void *data);
 int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp,
 					const struct brcmf_event_msg *e,
 					void *data);
 bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
 				 struct net_device *ndev,
 				 struct brcmf_fil_af_params_le *af_params);
 bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg,
 					   struct brcmf_bss_info_le *bi);
 s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
 					  const struct brcmf_event_msg *e,
 					  void *data);
 #endif /* WL_CFGP2P_H_ */
	/*
	* Copyright (c) 2012 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_CFGP2P_H_
	#define WL_CFGP2P_H_

	#include <net/cfg80211.h>

	struct brcmf_cfg80211_info;

	/**
	* enum p2p_bss_type - different type of BSS configurations.
	*
	* @P2PAPI_BSSCFG_PRIMARY: maps to driver's primary bsscfg.
	* @P2PAPI_BSSCFG_DEVICE: maps to driver's P2P device discovery bsscfg.
	* @P2PAPI_BSSCFG_CONNECTION: maps to driver's P2P connection bsscfg.
	* @P2PAPI_BSSCFG_MAX: used for range checking.
	*/
	enum p2p_bss_type {
	P2PAPI_BSSCFG_PRIMARY, /* maps to driver's primary bsscfg */
	P2PAPI_BSSCFG_DEVICE, /* maps to driver's P2P device discovery bsscfg */
	P2PAPI_BSSCFG_CONNECTION, /* maps to driver's P2P connection bsscfg */
	P2PAPI_BSSCFG_MAX
	};

	/**
	* struct p2p_bss - peer-to-peer bss related information.
	*
	* @vif: virtual interface of this P2P bss.
	* @private_data: TBD
	*/
	struct p2p_bss {
	struct brcmf_cfg80211_vif *vif;
	void *private_data;
	};

	/**
	* enum brcmf_p2p_status - P2P specific dongle status.
	*
	* @BRCMF_P2P_STATUS_IF_ADD: peer-to-peer vif add sent to dongle.
	* @BRCMF_P2P_STATUS_IF_DEL: NOT-USED?
	* @BRCMF_P2P_STATUS_IF_DELETING: peer-to-peer vif delete sent to dongle.
	* @BRCMF_P2P_STATUS_IF_CHANGING: peer-to-peer vif change sent to dongle.
	* @BRCMF_P2P_STATUS_IF_CHANGED: peer-to-peer vif change completed on dongle.
	* @BRCMF_P2P_STATUS_ACTION_TX_COMPLETED: action frame tx completed.
	* @BRCMF_P2P_STATUS_ACTION_TX_NOACK: action frame tx not acked.
	* @BRCMF_P2P_STATUS_GO_NEG_PHASE: P2P GO negotiation ongoing.
	* @BRCMF_P2P_STATUS_DISCOVER_LISTEN: P2P listen, remaining on channel.
	* @BRCMF_P2P_STATUS_SENDING_ACT_FRAME: In the process of sending action frame.
	* @BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN: extra listen time for af tx.
	* @BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME: waiting for action frame response.
	* @BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL: search channel for AF active.
	*/
	enum brcmf_p2p_status {
	BRCMF_P2P_STATUS_ENABLED,
	BRCMF_P2P_STATUS_IF_ADD,
	BRCMF_P2P_STATUS_IF_DEL,
	BRCMF_P2P_STATUS_IF_DELETING,
	BRCMF_P2P_STATUS_IF_CHANGING,
	BRCMF_P2P_STATUS_IF_CHANGED,
	BRCMF_P2P_STATUS_ACTION_TX_COMPLETED,
	BRCMF_P2P_STATUS_ACTION_TX_NOACK,
	BRCMF_P2P_STATUS_GO_NEG_PHASE,
	BRCMF_P2P_STATUS_DISCOVER_LISTEN,
	BRCMF_P2P_STATUS_SENDING_ACT_FRAME,
	BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN,
	BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME,
	BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL
	};

	/**
	* struct afx_hdl - action frame off channel storage.
	*
	* @afx_work: worker thread for searching channel
	* @act_frm_scan: thread synchronizing struct.
	* @is_active: channel searching active.
	* @peer_chan: current channel.
	* @is_listen: sets mode for afx worker.
	* @my_listen_chan: this peers listen channel.
	* @peer_listen_chan: remote peers listen channel.
	* @tx_dst_addr: mac address where tx af should be sent to.
	*/
	struct afx_hdl {
	struct work_struct afx_work;
	struct completion act_frm_scan;
	bool is_active;
	s32 peer_chan;
	bool is_listen;
	u16 my_listen_chan;
	u16 peer_listen_chan;
	u8 tx_dst_addr[ETH_ALEN];
	};

	/**
	* struct brcmf_p2p_info - p2p specific driver information.
	*
	* @cfg: driver private data for cfg80211 interface.
	* @status: status of P2P (see enum brcmf_p2p_status).
	* @dev_addr: P2P device address.
	* @int_addr: P2P interface address.
	* @bss_idx: informate for P2P bss types.
	* @listen_timer: timer for @WL_P2P_DISC_ST_LISTEN discover state.
	* @ssid: ssid for P2P GO.
	* @listen_channel: channel for @WL_P2P_DISC_ST_LISTEN discover state.
	* @remain_on_channel: contains copy of struct used by cfg80211.
	* @remain_on_channel_cookie: cookie counter for remain on channel cmd
	* @next_af_subtype: expected action frame subtype.
	* @send_af_done: indication that action frame tx is complete.
	* @afx_hdl: action frame search handler info.
	* @af_sent_channel: channel action frame is sent.
	* @af_tx_sent_jiffies: jiffies time when af tx was transmitted.
	* @wait_next_af: thread synchronizing struct.
	* @gon_req_action: about to send go negotiation requets frame.
	* @block_gon_req_tx: drop tx go negotiation requets frame.
	*/
	struct brcmf_p2p_info {
	struct brcmf_cfg80211_info *cfg;
	unsigned long status;
	u8 dev_addr[ETH_ALEN];
	u8 int_addr[ETH_ALEN];
	struct p2p_bss bss_idx[P2PAPI_BSSCFG_MAX];
	struct timer_list listen_timer;
	struct brcmf_ssid ssid;
	u8 listen_channel;
	struct ieee80211_channel remain_on_channel;
	u32 remain_on_channel_cookie;
	u8 next_af_subtype;
	struct completion send_af_done;
	struct afx_hdl afx_hdl;
	u32 af_sent_channel;
	unsigned long af_tx_sent_jiffies;
	struct completion wait_next_af;
	bool gon_req_action;
	bool block_gon_req_tx;
	};

	s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg);
	void brcmf_p2p_detach(struct brcmf_p2p_info *p2p);
	struct wireless_dev brcmf_p2p_add_vif(struct wiphy wiphy, const char *name,
	unsigned char name_assign_type,
	enum nl80211_iftype type, u32 *flags,
	struct vif_params *params);
	int brcmf_p2p_del_vif(struct wiphy wiphy, struct wireless_dev wdev);
	int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg,
	enum brcmf_fil_p2p_if_types if_type);
	int brcmf_p2p_start_device(struct wiphy wiphy, struct wireless_dev wdev);
	void brcmf_p2p_stop_device(struct wiphy wiphy, struct wireless_dev wdev);
	int brcmf_p2p_scan_prep(struct wiphy *wiphy,
	struct cfg80211_scan_request *request,
	struct brcmf_cfg80211_vif *vif);
	int brcmf_p2p_remain_on_channel(struct wiphy wiphy, struct wireless_dev wdev,
	struct ieee80211_channel *channel,
	unsigned int duration, u64 *cookie);
	int brcmf_p2p_notify_listen_complete(struct brcmf_if *ifp,
	const struct brcmf_event_msg *e,
	void *data);
	void brcmf_p2p_cancel_remain_on_channel(struct brcmf_if *ifp);
	int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
	const struct brcmf_event_msg *e,
	void *data);
	int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp,
	const struct brcmf_event_msg *e,
	void *data);
	bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
	struct net_device *ndev,
	struct brcmf_fil_af_params_le *af_params);
	bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg,
	struct brcmf_bss_info_le *bi);
	s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
	const struct brcmf_event_msg *e,
	void *data);
	#endif /* WL_CFGP2P_H_ */