1 // SPDX-License-Identifier: ISC
2 /*
3  * Copyright (c) 2012 Broadcom Corporation
4  */
5 #ifndef WL_CFGP2P_H_
6 #define WL_CFGP2P_H_
7 
8 #include <net/cfg80211.h>
9 
10 struct brcmf_cfg80211_info;
11 
12 /**
13  * enum p2p_bss_type - different type of BSS configurations.
14  *
15  * @P2PAPI_BSSCFG_PRIMARY: maps to driver's primary bsscfg.
16  * @P2PAPI_BSSCFG_DEVICE: maps to driver's P2P device discovery bsscfg.
17  * @P2PAPI_BSSCFG_CONNECTION: maps to driver's P2P connection bsscfg.
18  * @P2PAPI_BSSCFG_MAX: used for range checking.
19  */
20 enum p2p_bss_type {
21 	P2PAPI_BSSCFG_PRIMARY, /* maps to driver's primary bsscfg */
22 	P2PAPI_BSSCFG_DEVICE, /* maps to driver's P2P device discovery bsscfg */
23 	P2PAPI_BSSCFG_CONNECTION, /* maps to driver's P2P connection bsscfg */
24 	P2PAPI_BSSCFG_MAX
25 };
26 
27 /**
28  * struct p2p_bss - peer-to-peer bss related information.
29  *
30  * @vif: virtual interface of this P2P bss.
31  * @private_data: TBD
32  */
33 struct p2p_bss {
34 	struct brcmf_cfg80211_vif *vif;
35 	void *private_data;
36 };
37 
38 /**
39  * enum brcmf_p2p_status - P2P specific dongle status.
40  *
41  * @BRCMF_P2P_STATUS_IF_ADD: peer-to-peer vif add sent to dongle.
42  * @BRCMF_P2P_STATUS_IF_DEL: NOT-USED?
43  * @BRCMF_P2P_STATUS_IF_DELETING: peer-to-peer vif delete sent to dongle.
44  * @BRCMF_P2P_STATUS_IF_CHANGING: peer-to-peer vif change sent to dongle.
45  * @BRCMF_P2P_STATUS_IF_CHANGED: peer-to-peer vif change completed on dongle.
46  * @BRCMF_P2P_STATUS_ACTION_TX_COMPLETED: action frame tx completed.
47  * @BRCMF_P2P_STATUS_ACTION_TX_NOACK: action frame tx not acked.
48  * @BRCMF_P2P_STATUS_GO_NEG_PHASE: P2P GO negotiation ongoing.
49  * @BRCMF_P2P_STATUS_DISCOVER_LISTEN: P2P listen, remaining on channel.
50  * @BRCMF_P2P_STATUS_SENDING_ACT_FRAME: In the process of sending action frame.
51  * @BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN: extra listen time for af tx.
52  * @BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME: waiting for action frame response.
53  * @BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL: search channel for AF active.
54  */
55 enum brcmf_p2p_status {
56 	BRCMF_P2P_STATUS_ENABLED,
57 	BRCMF_P2P_STATUS_IF_ADD,
58 	BRCMF_P2P_STATUS_IF_DEL,
59 	BRCMF_P2P_STATUS_IF_DELETING,
60 	BRCMF_P2P_STATUS_IF_CHANGING,
61 	BRCMF_P2P_STATUS_IF_CHANGED,
62 	BRCMF_P2P_STATUS_ACTION_TX_COMPLETED,
63 	BRCMF_P2P_STATUS_ACTION_TX_NOACK,
64 	BRCMF_P2P_STATUS_GO_NEG_PHASE,
65 	BRCMF_P2P_STATUS_DISCOVER_LISTEN,
66 	BRCMF_P2P_STATUS_SENDING_ACT_FRAME,
67 	BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN,
68 	BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME,
69 	BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL
70 };
71 
72 /**
73  * struct afx_hdl - action frame off channel storage.
74  *
75  * @afx_work: worker thread for searching channel
76  * @act_frm_scan: thread synchronizing struct.
77  * @is_active: channel searching active.
78  * @peer_chan: current channel.
79  * @is_listen: sets mode for afx worker.
80  * @my_listen_chan: this peers listen channel.
81  * @peer_listen_chan: remote peers listen channel.
82  * @tx_dst_addr: mac address where tx af should be sent to.
83  */
84 struct afx_hdl {
85 	struct work_struct afx_work;
86 	struct completion act_frm_scan;
87 	bool is_active;
88 	s32 peer_chan;
89 	bool is_listen;
90 	u16 my_listen_chan;
91 	u16 peer_listen_chan;
92 	u8 tx_dst_addr[ETH_ALEN];
93 };
94 
95 /**
96  * struct brcmf_p2p_info - p2p specific driver information.
97  *
98  * @cfg: driver private data for cfg80211 interface.
99  * @status: status of P2P (see enum brcmf_p2p_status).
100  * @dev_addr: P2P device address.
101  * @int_addr: P2P interface address.
102  * @bss_idx: informate for P2P bss types.
103  * @listen_timer: timer for @WL_P2P_DISC_ST_LISTEN discover state.
104  * @listen_channel: channel for @WL_P2P_DISC_ST_LISTEN discover state.
105  * @remain_on_channel: contains copy of struct used by cfg80211.
106  * @remain_on_channel_cookie: cookie counter for remain on channel cmd
107  * @next_af_subtype: expected action frame subtype.
108  * @send_af_done: indication that action frame tx is complete.
109  * @afx_hdl: action frame search handler info.
110  * @af_sent_channel: channel action frame is sent.
111  * @af_tx_sent_jiffies: jiffies time when af tx was transmitted.
112  * @wait_next_af: thread synchronizing struct.
113  * @gon_req_action: about to send go negotiation requets frame.
114  * @block_gon_req_tx: drop tx go negotiation requets frame.
115  * @p2pdev_dynamically: is p2p device if created by module param or supplicant.
116  * @wait_for_offchan_complete: wait for off-channel tx completion event.
117  */
118 struct brcmf_p2p_info {
119 	struct brcmf_cfg80211_info *cfg;
120 	unsigned long status;
121 	u8 dev_addr[ETH_ALEN];
122 	u8 int_addr[ETH_ALEN];
123 	struct p2p_bss bss_idx[P2PAPI_BSSCFG_MAX];
124 	struct timer_list listen_timer;
125 	u8 listen_channel;
126 	struct ieee80211_channel remain_on_channel;
127 	u32 remain_on_channel_cookie;
128 	u8 next_af_subtype;
129 	struct completion send_af_done;
130 	struct afx_hdl afx_hdl;
131 	u32 af_sent_channel;
132 	unsigned long af_tx_sent_jiffies;
133 	struct completion wait_next_af;
134 	bool gon_req_action;
135 	bool block_gon_req_tx;
136 	bool p2pdev_dynamically;
137 	bool wait_for_offchan_complete;
138 };
139 
140 s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg, bool p2pdev_forced);
141 void brcmf_p2p_detach(struct brcmf_p2p_info *p2p);
142 struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name,
143 				       unsigned char name_assign_type,
144 				       enum nl80211_iftype type,
145 				       struct vif_params *params);
146 int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev);
147 int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg,
148 		       enum brcmf_fil_p2p_if_types if_type);
149 void brcmf_p2p_ifp_removed(struct brcmf_if *ifp, bool rtnl_locked);
150 int brcmf_p2p_start_device(struct wiphy *wiphy, struct wireless_dev *wdev);
151 void brcmf_p2p_stop_device(struct wiphy *wiphy, struct wireless_dev *wdev);
152 int brcmf_p2p_scan_prep(struct wiphy *wiphy,
153 			struct cfg80211_scan_request *request,
154 			struct brcmf_cfg80211_vif *vif);
155 int brcmf_p2p_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
156 				struct ieee80211_channel *channel,
157 				unsigned int duration, u64 *cookie);
158 int brcmf_p2p_notify_listen_complete(struct brcmf_if *ifp,
159 				     const struct brcmf_event_msg *e,
160 				     void *data);
161 void brcmf_p2p_cancel_remain_on_channel(struct brcmf_if *ifp);
162 int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
163 				     const struct brcmf_event_msg *e,
164 				     void *data);
165 int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp,
166 					const struct brcmf_event_msg *e,
167 					void *data);
168 bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
169 				 struct net_device *ndev,
170 				 struct brcmf_fil_af_params_le *af_params);
171 bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg,
172 					   struct brcmf_bss_info_le *bi);
173 s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
174 					  const struct brcmf_event_msg *e,
175 					  void *data);
176 #endif /* WL_CFGP2P_H_ */
177