drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.h

   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
  21 struct 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  */
  31 enum 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  */
  44 struct 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  */
  66 enum 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  */
  95 struct 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  * @listen_channel: channel for @WL_P2P_DISC_ST_LISTEN discover state.
 116  * @remain_on_channel: contains copy of struct used by cfg80211.
 117  * @remain_on_channel_cookie: cookie counter for remain on channel cmd
 118  * @next_af_subtype: expected action frame subtype.
 119  * @send_af_done: indication that action frame tx is complete.
 120  * @afx_hdl: action frame search handler info.
 121  * @af_sent_channel: channel action frame is sent.
 122  * @af_tx_sent_jiffies: jiffies time when af tx was transmitted.
 123  * @wait_next_af: thread synchronizing struct.
 124  * @gon_req_action: about to send go negotiation requets frame.
 125  * @block_gon_req_tx: drop tx go negotiation requets frame.
 126  * @p2pdev_dynamically: is p2p device if created by module param or supplicant.
 127  * @wait_for_offchan_complete: wait for off-channel tx completion event.
 128  */
 129 struct brcmf_p2p_info {
 130         struct brcmf_cfg80211_info *cfg;
 131         unsigned long status;
 132         u8 dev_addr[ETH_ALEN];
 133         u8 int_addr[ETH_ALEN];
 134         struct p2p_bss bss_idx[P2PAPI_BSSCFG_MAX];
 135         struct timer_list listen_timer;
 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         bool p2pdev_dynamically;
 148         bool wait_for_offchan_complete;
 149 };
 150
 151 s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg, bool p2pdev_forced);
 152 void brcmf_p2p_detach(struct brcmf_p2p_info *p2p);
 153 struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name,
 154                                        unsigned char name_assign_type,
 155                                        enum nl80211_iftype type,
 156                                        struct vif_params *params);
 157 int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev);
 158 int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg,
 159                        enum brcmf_fil_p2p_if_types if_type);
 160 void brcmf_p2p_ifp_removed(struct brcmf_if *ifp, bool rtnl_locked);
 161 int brcmf_p2p_start_device(struct wiphy *wiphy, struct wireless_dev *wdev);
 162 void brcmf_p2p_stop_device(struct wiphy *wiphy, struct wireless_dev *wdev);
 163 int brcmf_p2p_scan_prep(struct wiphy *wiphy,
 164                         struct cfg80211_scan_request *request,
 165                         struct brcmf_cfg80211_vif *vif);
 166 int brcmf_p2p_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
 167                                 struct ieee80211_channel *channel,
 168                                 unsigned int duration, u64 *cookie);
 169 int brcmf_p2p_notify_listen_complete(struct brcmf_if *ifp,
 170                                      const struct brcmf_event_msg *e,
 171                                      void *data);
 172 void brcmf_p2p_cancel_remain_on_channel(struct brcmf_if *ifp);
 173 int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
 174                                      const struct brcmf_event_msg *e,
 175                                      void *data);
 176 int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp,
 177                                         const struct brcmf_event_msg *e,
 178                                         void *data);
 179 bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
 180                                  struct net_device *ndev,
 181                                  struct brcmf_fil_af_params_le *af_params);
 182 bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg,
 183                                            struct brcmf_bss_info_le *bi);
 184 s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
 185                                           const struct brcmf_event_msg *e,
 186                                           void *data);
 187 #endif /* WL_CFGP2P_H_ */