1/*
2 * Copyright (c) 2012 Broadcom Corporation
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16#ifndef WL_CFGP2P_H_
17#define WL_CFGP2P_H_
18
19#include <net/cfg80211.h>
20
21struct brcmf_cfg80211_info;
22
23/**
24 * enum p2p_bss_type - different type of BSS configurations.
25 *
26 * @P2PAPI_BSSCFG_PRIMARY: maps to driver's primary bsscfg.
27 * @P2PAPI_BSSCFG_DEVICE: maps to driver's P2P device discovery bsscfg.
28 * @P2PAPI_BSSCFG_CONNECTION: maps to driver's P2P connection bsscfg.
29 * @P2PAPI_BSSCFG_MAX: used for range checking.
30 */
31enum p2p_bss_type {
32	P2PAPI_BSSCFG_PRIMARY, /* maps to driver's primary bsscfg */
33	P2PAPI_BSSCFG_DEVICE, /* maps to driver's P2P device discovery bsscfg */
34	P2PAPI_BSSCFG_CONNECTION, /* maps to driver's P2P connection bsscfg */
35	P2PAPI_BSSCFG_MAX
36};
37
38/**
39 * struct p2p_bss - peer-to-peer bss related information.
40 *
41 * @vif: virtual interface of this P2P bss.
42 * @private_data: TBD
43 */
44struct p2p_bss {
45	struct brcmf_cfg80211_vif *vif;
46	void *private_data;
47};
48
49/**
50 * enum brcmf_p2p_status - P2P specific dongle status.
51 *
52 * @BRCMF_P2P_STATUS_IF_ADD: peer-to-peer vif add sent to dongle.
53 * @BRCMF_P2P_STATUS_IF_DEL: NOT-USED?
54 * @BRCMF_P2P_STATUS_IF_DELETING: peer-to-peer vif delete sent to dongle.
55 * @BRCMF_P2P_STATUS_IF_CHANGING: peer-to-peer vif change sent to dongle.
56 * @BRCMF_P2P_STATUS_IF_CHANGED: peer-to-peer vif change completed on dongle.
57 * @BRCMF_P2P_STATUS_ACTION_TX_COMPLETED: action frame tx completed.
58 * @BRCMF_P2P_STATUS_ACTION_TX_NOACK: action frame tx not acked.
59 * @BRCMF_P2P_STATUS_GO_NEG_PHASE: P2P GO negotiation ongoing.
60 * @BRCMF_P2P_STATUS_DISCOVER_LISTEN: P2P listen, remaining on channel.
61 * @BRCMF_P2P_STATUS_SENDING_ACT_FRAME: In the process of sending action frame.
62 * @BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN: extra listen time for af tx.
63 * @BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME: waiting for action frame response.
64 * @BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL: search channel for AF active.
65 */
66enum brcmf_p2p_status {
67	BRCMF_P2P_STATUS_ENABLED,
68	BRCMF_P2P_STATUS_IF_ADD,
69	BRCMF_P2P_STATUS_IF_DEL,
70	BRCMF_P2P_STATUS_IF_DELETING,
71	BRCMF_P2P_STATUS_IF_CHANGING,
72	BRCMF_P2P_STATUS_IF_CHANGED,
73	BRCMF_P2P_STATUS_ACTION_TX_COMPLETED,
74	BRCMF_P2P_STATUS_ACTION_TX_NOACK,
75	BRCMF_P2P_STATUS_GO_NEG_PHASE,
76	BRCMF_P2P_STATUS_DISCOVER_LISTEN,
77	BRCMF_P2P_STATUS_SENDING_ACT_FRAME,
78	BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN,
79	BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME,
80	BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL
81};
82
83/**
84 * struct afx_hdl - action frame off channel storage.
85 *
86 * @afx_work: worker thread for searching channel
87 * @act_frm_scan: thread synchronizing struct.
88 * @is_active: channel searching active.
89 * @peer_chan: current channel.
90 * @is_listen: sets mode for afx worker.
91 * @my_listen_chan: this peers listen channel.
92 * @peer_listen_chan: remote peers listen channel.
93 * @tx_dst_addr: mac address where tx af should be sent to.
94 */
95struct afx_hdl {
96	struct work_struct afx_work;
97	struct completion act_frm_scan;
98	bool is_active;
99	s32 peer_chan;
100	bool is_listen;
101	u16 my_listen_chan;
102	u16 peer_listen_chan;
103	u8 tx_dst_addr[ETH_ALEN];
104};
105
106/**
107 * struct brcmf_p2p_info - p2p specific driver information.
108 *
109 * @cfg: driver private data for cfg80211 interface.
110 * @status: status of P2P (see enum brcmf_p2p_status).
111 * @dev_addr: P2P device address.
112 * @int_addr: P2P interface address.
113 * @bss_idx: informate for P2P bss types.
114 * @listen_timer: timer for @WL_P2P_DISC_ST_LISTEN discover state.
115 * @ssid: ssid for P2P GO.
116 * @listen_channel: channel for @WL_P2P_DISC_ST_LISTEN discover state.
117 * @remain_on_channel: contains copy of struct used by cfg80211.
118 * @remain_on_channel_cookie: cookie counter for remain on channel cmd
119 * @next_af_subtype: expected action frame subtype.
120 * @send_af_done: indication that action frame tx is complete.
121 * @afx_hdl: action frame search handler info.
122 * @af_sent_channel: channel action frame is sent.
123 * @af_tx_sent_jiffies: jiffies time when af tx was transmitted.
124 * @wait_next_af: thread synchronizing struct.
125 * @gon_req_action: about to send go negotiation requets frame.
126 * @block_gon_req_tx: drop tx go negotiation requets frame.
127 */
128struct brcmf_p2p_info {
129	struct brcmf_cfg80211_info *cfg;
130	unsigned long status;
131	u8 dev_addr[ETH_ALEN];
132	u8 int_addr[ETH_ALEN];
133	struct p2p_bss bss_idx[P2PAPI_BSSCFG_MAX];
134	struct timer_list listen_timer;
135	struct brcmf_ssid ssid;
136	u8 listen_channel;
137	struct ieee80211_channel remain_on_channel;
138	u32 remain_on_channel_cookie;
139	u8 next_af_subtype;
140	struct completion send_af_done;
141	struct afx_hdl afx_hdl;
142	u32 af_sent_channel;
143	unsigned long af_tx_sent_jiffies;
144	struct completion wait_next_af;
145	bool gon_req_action;
146	bool block_gon_req_tx;
147};
148
149s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg);
150void brcmf_p2p_detach(struct brcmf_p2p_info *p2p);
151struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name,
152				       enum nl80211_iftype type, u32 *flags,
153				       struct vif_params *params);
154int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev);
155int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg,
156		       enum brcmf_fil_p2p_if_types if_type);
157int brcmf_p2p_start_device(struct wiphy *wiphy, struct wireless_dev *wdev);
158void brcmf_p2p_stop_device(struct wiphy *wiphy, struct wireless_dev *wdev);
159int brcmf_p2p_scan_prep(struct wiphy *wiphy,
160			struct cfg80211_scan_request *request,
161			struct brcmf_cfg80211_vif *vif);
162int brcmf_p2p_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
163				struct ieee80211_channel *channel,
164				unsigned int duration, u64 *cookie);
165int brcmf_p2p_notify_listen_complete(struct brcmf_if *ifp,
166				     const struct brcmf_event_msg *e,
167				     void *data);
168void brcmf_p2p_cancel_remain_on_channel(struct brcmf_if *ifp);
169int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
170				     const struct brcmf_event_msg *e,
171				     void *data);
172int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp,
173					const struct brcmf_event_msg *e,
174					void *data);
175bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
176				 struct net_device *ndev,
177				 struct brcmf_fil_af_params_le *af_params);
178bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg,
179					   struct brcmf_bss_info_le *bi);
180s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
181					  const struct brcmf_event_msg *e,
182					  void *data);
183#endif /* WL_CFGP2P_H_ */
184