drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h

   1 /*
   2  * Copyright (c) 2010 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
  17 #ifndef BRCMFMAC_CFG80211_H
  18 #define BRCMFMAC_CFG80211_H
  19
  20 /* for brcmu_d11inf */
  21 #include <brcmu_d11.h>
  22
  23 #include "core.h"
  24 #include "fwil_types.h"
  25 #include "p2p.h"
  26
  27 #define BRCMF_SCAN_IE_LEN_MAX           2048
  28
  29 #define WL_NUM_SCAN_MAX                 10
  30 #define WL_TLV_INFO_MAX                 1024
  31 #define WL_BSS_INFO_MAX                 2048
  32 #define WL_ASSOC_INFO_MAX               512     /* assoc related fil max buf */
  33 #define WL_EXTRA_BUF_MAX                2048
  34 #define WL_ROAM_TRIGGER_LEVEL           -75
  35 #define WL_ROAM_DELTA                   20
  36
  37 /* Keep BRCMF_ESCAN_BUF_SIZE below 64K (65536). Allocing over 64K can be
  38  * problematic on some systems and should be avoided.
  39  */
  40 #define BRCMF_ESCAN_BUF_SIZE            65000
  41 #define BRCMF_ESCAN_TIMER_INTERVAL_MS   10000   /* E-Scan timeout */
  42
  43 #define WL_ESCAN_ACTION_START           1
  44 #define WL_ESCAN_ACTION_CONTINUE        2
  45 #define WL_ESCAN_ACTION_ABORT           3
  46
  47 #define WL_AUTH_SHARED_KEY              1       /* d11 shared authentication */
  48 #define IE_MAX_LEN                      512
  49
  50 /* IE TLV processing */
  51 #define TLV_LEN_OFF                     1       /* length offset */
  52 #define TLV_HDR_LEN                     2       /* header length */
  53 #define TLV_BODY_OFF                    2       /* body offset */
  54 #define TLV_OUI_LEN                     3       /* oui id length */
  55
  56 /* 802.11 Mgmt Packet flags */
  57 #define BRCMF_VNDR_IE_BEACON_FLAG       0x1
  58 #define BRCMF_VNDR_IE_PRBRSP_FLAG       0x2
  59 #define BRCMF_VNDR_IE_ASSOCRSP_FLAG     0x4
  60 #define BRCMF_VNDR_IE_AUTHRSP_FLAG      0x8
  61 #define BRCMF_VNDR_IE_PRBREQ_FLAG       0x10
  62 #define BRCMF_VNDR_IE_ASSOCREQ_FLAG     0x20
  63 /* vendor IE in IW advertisement protocol ID field */
  64 #define BRCMF_VNDR_IE_IWAPID_FLAG       0x40
  65 /* allow custom IE id */
  66 #define BRCMF_VNDR_IE_CUSTOM_FLAG       0x100
  67
  68 /* P2P Action Frames flags (spec ordered) */
  69 #define BRCMF_VNDR_IE_GONREQ_FLAG     0x001000
  70 #define BRCMF_VNDR_IE_GONRSP_FLAG     0x002000
  71 #define BRCMF_VNDR_IE_GONCFM_FLAG     0x004000
  72 #define BRCMF_VNDR_IE_INVREQ_FLAG     0x008000
  73 #define BRCMF_VNDR_IE_INVRSP_FLAG     0x010000
  74 #define BRCMF_VNDR_IE_DISREQ_FLAG     0x020000
  75 #define BRCMF_VNDR_IE_DISRSP_FLAG     0x040000
  76 #define BRCMF_VNDR_IE_PRDREQ_FLAG     0x080000
  77 #define BRCMF_VNDR_IE_PRDRSP_FLAG     0x100000
  78
  79 #define BRCMF_VNDR_IE_P2PAF_SHIFT       12
  80
  81 #define BRCMF_MAX_DEFAULT_KEYS          6
  82
  83 /* beacon loss timeout defaults */
  84 #define BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_ON       2
  85 #define BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_OFF      4
  86
  87 #define BRCMF_VIF_EVENT_TIMEOUT         msecs_to_jiffies(1500)
  88
  89 /**
  90  * enum brcmf_scan_status - scan engine status
  91  *
  92  * @BRCMF_SCAN_STATUS_BUSY: scanning in progress on dongle.
  93  * @BRCMF_SCAN_STATUS_ABORT: scan being aborted on dongle.
  94  * @BRCMF_SCAN_STATUS_SUPPRESS: scanning is suppressed in driver.
  95  */
  96 enum brcmf_scan_status {
  97         BRCMF_SCAN_STATUS_BUSY,
  98         BRCMF_SCAN_STATUS_ABORT,
  99         BRCMF_SCAN_STATUS_SUPPRESS,
 100 };
 101
 102 /* dongle configuration */
 103 struct brcmf_cfg80211_conf {
 104         u32 frag_threshold;
 105         u32 rts_threshold;
 106         u32 retry_short;
 107         u32 retry_long;
 108 };
 109
 110 /* security information with currently associated ap */
 111 struct brcmf_cfg80211_security {
 112         u32 wpa_versions;
 113         u32 auth_type;
 114         u32 cipher_pairwise;
 115         u32 cipher_group;
 116 };
 117
 118 enum brcmf_profile_fwsup {
 119         BRCMF_PROFILE_FWSUP_NONE,
 120         BRCMF_PROFILE_FWSUP_PSK,
 121         BRCMF_PROFILE_FWSUP_1X
 122 };
 123
 124 /**
 125  * struct brcmf_cfg80211_profile - profile information.
 126  *
 127  * @bssid: bssid of joined/joining ibss.
 128  * @sec: security information.
 129  * @key: key information
 130  */
 131 struct brcmf_cfg80211_profile {
 132         u8 bssid[ETH_ALEN];
 133         struct brcmf_cfg80211_security sec;
 134         struct brcmf_wsec_key key[BRCMF_MAX_DEFAULT_KEYS];
 135         enum brcmf_profile_fwsup use_fwsup;
 136 };
 137
 138 /**
 139  * enum brcmf_vif_status - bit indices for vif status.
 140  *
 141  * @BRCMF_VIF_STATUS_READY: ready for operation.
 142  * @BRCMF_VIF_STATUS_CONNECTING: connect/join in progress.
 143  * @BRCMF_VIF_STATUS_CONNECTED: connected/joined successfully.
 144  * @BRCMF_VIF_STATUS_DISCONNECTING: disconnect/disable in progress.
 145  * @BRCMF_VIF_STATUS_AP_CREATED: AP operation started.
 146  * @BRCMF_VIF_STATUS_EAP_SUCCUSS: EAPOL handshake successful.
 147  * @BRCMF_VIF_STATUS_ASSOC_SUCCESS: successful SET_SSID received.
 148  */
 149 enum brcmf_vif_status {
 150         BRCMF_VIF_STATUS_READY,
 151         BRCMF_VIF_STATUS_CONNECTING,
 152         BRCMF_VIF_STATUS_CONNECTED,
 153         BRCMF_VIF_STATUS_DISCONNECTING,
 154         BRCMF_VIF_STATUS_AP_CREATED,
 155         BRCMF_VIF_STATUS_EAP_SUCCESS,
 156         BRCMF_VIF_STATUS_ASSOC_SUCCESS,
 157 };
 158
 159 /**
 160  * struct vif_saved_ie - holds saved IEs for a virtual interface.
 161  *
 162  * @probe_req_ie: IE info for probe request.
 163  * @probe_res_ie: IE info for probe response.
 164  * @beacon_ie: IE info for beacon frame.
 165  * @probe_req_ie_len: IE info length for probe request.
 166  * @probe_res_ie_len: IE info length for probe response.
 167  * @beacon_ie_len: IE info length for beacon frame.
 168  */
 169 struct vif_saved_ie {
 170         u8  probe_req_ie[IE_MAX_LEN];
 171         u8  probe_res_ie[IE_MAX_LEN];
 172         u8  beacon_ie[IE_MAX_LEN];
 173         u8  assoc_req_ie[IE_MAX_LEN];
 174         u32 probe_req_ie_len;
 175         u32 probe_res_ie_len;
 176         u32 beacon_ie_len;
 177         u32 assoc_req_ie_len;
 178 };
 179
 180 /**
 181  * struct brcmf_cfg80211_vif - virtual interface specific information.
 182  *
 183  * @ifp: lower layer interface pointer
 184  * @wdev: wireless device.
 185  * @profile: profile information.
 186  * @sme_state: SME state using enum brcmf_vif_status bits.
 187  * @list: linked list.
 188  * @mgmt_rx_reg: registered rx mgmt frame types.
 189  * @mbss: Multiple BSS type, set if not first AP (not relevant for P2P).
 190  */
 191 struct brcmf_cfg80211_vif {
 192         struct brcmf_if *ifp;
 193         struct wireless_dev wdev;
 194         struct brcmf_cfg80211_profile profile;
 195         unsigned long sme_state;
 196         struct vif_saved_ie saved_ie;
 197         struct list_head list;
 198         u16 mgmt_rx_reg;
 199         bool mbss;
 200         int is_11d;
 201 };
 202
 203 /* association inform */
 204 struct brcmf_cfg80211_connect_info {
 205         u8 *req_ie;
 206         s32 req_ie_len;
 207         u8 *resp_ie;
 208         s32 resp_ie_len;
 209 };
 210
 211 /* assoc ie length */
 212 struct brcmf_cfg80211_assoc_ielen_le {
 213         __le32 req_len;
 214         __le32 resp_len;
 215 };
 216
 217 /* dongle escan state */
 218 enum wl_escan_state {
 219         WL_ESCAN_STATE_IDLE,
 220         WL_ESCAN_STATE_SCANNING
 221 };
 222
 223 struct escan_info {
 224         u32 escan_state;
 225         u8 *escan_buf;
 226         struct wiphy *wiphy;
 227         struct brcmf_if *ifp;
 228         s32 (*run)(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
 229                    struct cfg80211_scan_request *request);
 230 };
 231
 232 /**
 233  * struct brcmf_cfg80211_vif_event - virtual interface event information.
 234  *
 235  * @vif_wq: waitqueue awaiting interface event from firmware.
 236  * @vif_event_lock: protects other members in this structure.
 237  * @vif_complete: completion for net attach.
 238  * @action: either add, change, or delete.
 239  * @vif: virtual interface object related to the event.
 240  */
 241 struct brcmf_cfg80211_vif_event {
 242         wait_queue_head_t vif_wq;
 243         spinlock_t vif_event_lock;
 244         u8 action;
 245         struct brcmf_cfg80211_vif *vif;
 246 };
 247
 248 /**
 249  * struct brcmf_cfg80211_wowl - wowl related information.
 250  *
 251  * @active: set on suspend, cleared on resume.
 252  * @pre_pmmode: firmware PM mode at entering suspend.
 253  * @nd: net dectect data.
 254  * @nd_info: helper struct to pass to cfg80211.
 255  * @nd_data_wait: wait queue to sync net detect data.
 256  * @nd_data_completed: completion for net detect data.
 257  * @nd_enabled: net detect enabled.
 258  */
 259 struct brcmf_cfg80211_wowl {
 260         bool active;
 261         u32 pre_pmmode;
 262         struct cfg80211_wowlan_nd_match *nd;
 263         struct cfg80211_wowlan_nd_info *nd_info;
 264         wait_queue_head_t nd_data_wait;
 265         bool nd_data_completed;
 266         bool nd_enabled;
 267 };
 268
 269 /**
 270  * struct brcmf_cfg80211_info - dongle private data of cfg80211 interface
 271  *
 272  * @wiphy: wiphy object for cfg80211 interface.
 273  * @ops: pointer to copy of ops as registered with wiphy object.
 274  * @conf: dongle configuration.
 275  * @p2p: peer-to-peer specific information.
 276  * @btcoex: Bluetooth coexistence information.
 277  * @scan_request: cfg80211 scan request object.
 278  * @usr_sync: mainly for dongle up/down synchronization.
 279  * @bss_list: bss_list holding scanned ap information.
 280  * @bss_info: bss information for cfg80211 layer.
 281  * @conn_info: association info.
 282  * @pmk_list: wpa2 pmk list.
 283  * @scan_status: scan activity on the dongle.
 284  * @pub: common driver information.
 285  * @channel: current channel.
 286  * @int_escan_map: bucket map for which internal e-scan is done.
 287  * @ibss_starter: indicates this sta is ibss starter.
 288  * @pwr_save: indicate whether dongle to support power save mode.
 289  * @dongle_up: indicate whether dongle up or not.
 290  * @roam_on: on/off switch for dongle self-roaming.
 291  * @scan_tried: indicates if first scan attempted.
 292  * @dcmd_buf: dcmd buffer.
 293  * @extra_buf: mainly to grab assoc information.
 294  * @debugfsdir: debugfs folder for this device.
 295  * @escan_info: escan information.
 296  * @escan_timeout: Timer for catch scan timeout.
 297  * @escan_timeout_work: scan timeout worker.
 298  * @vif_list: linked list of vif instances.
 299  * @vif_cnt: number of vif instances.
 300  * @vif_event: vif event signalling.
 301  * @wowl: wowl related information.
 302  * @pno: information of pno module.
 303  */
 304 struct brcmf_cfg80211_info {
 305         struct wiphy *wiphy;
 306         struct cfg80211_ops *ops;
 307         struct brcmf_cfg80211_conf *conf;
 308         struct brcmf_p2p_info p2p;
 309         struct brcmf_btcoex_info *btcoex;
 310         struct cfg80211_scan_request *scan_request;
 311         struct mutex usr_sync;
 312         struct wl_cfg80211_bss_info *bss_info;
 313         struct brcmf_cfg80211_connect_info conn_info;
 314         struct brcmf_pmk_list_le pmk_list;
 315         unsigned long scan_status;
 316         struct brcmf_pub *pub;
 317         u32 channel;
 318         u32 int_escan_map;
 319         bool ibss_starter;
 320         bool pwr_save;
 321         bool dongle_up;
 322         bool scan_tried;
 323         u8 *dcmd_buf;
 324         u8 *extra_buf;
 325         struct dentry *debugfsdir;
 326         struct escan_info escan_info;
 327         struct timer_list escan_timeout;
 328         struct work_struct escan_timeout_work;
 329         struct list_head vif_list;
 330         struct brcmf_cfg80211_vif_event vif_event;
 331         struct completion vif_disabled;
 332         struct brcmu_d11inf d11inf;
 333         struct brcmf_assoclist_le assoclist;
 334         struct brcmf_cfg80211_wowl wowl;
 335         struct brcmf_pno_info *pno;
 336 };
 337
 338 /**
 339  * struct brcmf_tlv - tag_ID/length/value_buffer tuple.
 340  *
 341  * @id: tag identifier.
 342  * @len: number of bytes in value buffer.
 343  * @data: value buffer.
 344  */
 345 struct brcmf_tlv {
 346         u8 id;
 347         u8 len;
 348         u8 data[1];
 349 };
 350
 351 static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_info *cfg)
 352 {
 353         return cfg->wiphy;
 354 }
 355
 356 static inline struct brcmf_cfg80211_info *wiphy_to_cfg(struct wiphy *w)
 357 {
 358         struct brcmf_pub *drvr = wiphy_priv(w);
 359         return drvr->config;
 360 }
 361
 362 static inline struct brcmf_cfg80211_info *wdev_to_cfg(struct wireless_dev *wd)
 363 {
 364         return wiphy_to_cfg(wd->wiphy);
 365 }
 366
 367 static inline struct brcmf_cfg80211_vif *wdev_to_vif(struct wireless_dev *wdev)
 368 {
 369         return container_of(wdev, struct brcmf_cfg80211_vif, wdev);
 370 }
 371
 372 static inline
 373 struct net_device *cfg_to_ndev(struct brcmf_cfg80211_info *cfg)
 374 {
 375         return brcmf_get_ifp(cfg->pub, 0)->ndev;
 376 }
 377
 378 static inline struct brcmf_cfg80211_info *ndev_to_cfg(struct net_device *ndev)
 379 {
 380         return wdev_to_cfg(ndev->ieee80211_ptr);
 381 }
 382
 383 static inline struct brcmf_cfg80211_profile *ndev_to_prof(struct net_device *nd)
 384 {
 385         struct brcmf_if *ifp = netdev_priv(nd);
 386         return &ifp->vif->profile;
 387 }
 388
 389 static inline struct brcmf_cfg80211_vif *ndev_to_vif(struct net_device *ndev)
 390 {
 391         struct brcmf_if *ifp = netdev_priv(ndev);
 392         return ifp->vif;
 393 }
 394
 395 static inline struct
 396 brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_info *cfg)
 397 {
 398         return &cfg->conn_info;
 399 }
 400
 401 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
 402                                                   struct cfg80211_ops *ops,
 403                                                   bool p2pdev_forced);
 404 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg);
 405 s32 brcmf_cfg80211_up(struct net_device *ndev);
 406 s32 brcmf_cfg80211_down(struct net_device *ndev);
 407 struct cfg80211_ops *brcmf_cfg80211_get_ops(struct brcmf_mp_device *settings);
 408 enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp);
 409
 410 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
 411                                            enum nl80211_iftype type);
 412 void brcmf_free_vif(struct brcmf_cfg80211_vif *vif);
 413
 414 s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
 415                           const u8 *vndr_ie_buf, u32 vndr_ie_len);
 416 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif);
 417 u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
 418                         struct ieee80211_channel *ch);
 419 bool brcmf_get_vif_state_any(struct brcmf_cfg80211_info *cfg,
 420                              unsigned long state);
 421 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
 422                                   struct brcmf_cfg80211_vif *vif);
 423 bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg);
 424 int brcmf_cfg80211_wait_vif_event(struct brcmf_cfg80211_info *cfg,
 425                                   u8 action, ulong timeout);
 426 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
 427                                 struct brcmf_if *ifp, bool aborted,
 428                                 bool fw_abort);
 429 void brcmf_set_mpc(struct brcmf_if *ndev, int mpc);
 430 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg);
 431 void brcmf_cfg80211_free_netdev(struct net_device *ndev);
 432
 433 #endif /* BRCMFMAC_CFG80211_H */