Pileus Git - ~andy/linux/blob - drivers/net/wireless/brcm80211/brcmfmac/wl_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 _wl_cfg80211_h_
  18 #define _wl_cfg80211_h_
  19
  20 #include "dhd_dbg.h"
  21
  22 #define WL_SCAN(fmt, ...)       brcmf_dbg(SCAN, fmt, ##__VA_ARGS__)
  23 #define WL_CONN(fmt, ...)       brcmf_dbg(CONN, fmt, ##__VA_ARGS__)
  24
  25 #define WL_NUM_SCAN_MAX                 10
  26 #define WL_NUM_PMKIDS_MAX               MAXPMKID
  27 #define WL_TLV_INFO_MAX                 1024
  28 #define WL_BSS_INFO_MAX                 2048
  29 #define WL_ASSOC_INFO_MAX               512     /* assoc related fil max buf */
  30 #define WL_EXTRA_BUF_MAX                2048
  31 #define WL_ROAM_TRIGGER_LEVEL           -75
  32 #define WL_ROAM_DELTA                   20
  33 #define WL_BEACON_TIMEOUT               3
  34
  35 #define WL_SCAN_CHANNEL_TIME            40
  36 #define WL_SCAN_UNASSOC_TIME            40
  37 #define WL_SCAN_PASSIVE_TIME            120
  38
  39 #define WL_ESCAN_BUF_SIZE               (1024 * 64)
  40 #define WL_ESCAN_TIMER_INTERVAL_MS      8000 /* E-Scan timeout */
  41
  42 #define WL_ESCAN_ACTION_START           1
  43 #define WL_ESCAN_ACTION_CONTINUE        2
  44 #define WL_ESCAN_ACTION_ABORT           3
  45
  46 #define WL_AUTH_SHARED_KEY              1       /* d11 shared authentication */
  47 #define IE_MAX_LEN                      512
  48
  49 /**
  50  * enum brcmf_scan_status - dongle scan status
  51  *
  52  * @BRCMF_SCAN_STATUS_BUSY: scanning in progress on dongle.
  53  * @BRCMF_SCAN_STATUS_ABORT: scan being aborted on dongle.
  54  */
  55 enum brcmf_scan_status {
  56         BRCMF_SCAN_STATUS_BUSY,
  57         BRCMF_SCAN_STATUS_ABORT,
  58 };
  59
  60 /* wi-fi mode */
  61 enum wl_mode {
  62         WL_MODE_BSS,
  63         WL_MODE_IBSS,
  64         WL_MODE_AP
  65 };
  66
  67 /* dongle configuration */
  68 struct brcmf_cfg80211_conf {
  69         u32 frag_threshold;
  70         u32 rts_threshold;
  71         u32 retry_short;
  72         u32 retry_long;
  73         s32 tx_power;
  74         struct ieee80211_channel channel;
  75 };
  76
  77 /* basic structure of scan request */
  78 struct brcmf_cfg80211_scan_req {
  79         struct brcmf_ssid_le ssid_le;
  80 };
  81
  82 /* basic structure of information element */
  83 struct brcmf_cfg80211_ie {
  84         u16 offset;
  85         u8 buf[WL_TLV_INFO_MAX];
  86 };
  87
  88 /* security information with currently associated ap */
  89 struct brcmf_cfg80211_security {
  90         u32 wpa_versions;
  91         u32 auth_type;
  92         u32 cipher_pairwise;
  93         u32 cipher_group;
  94         u32 wpa_auth;
  95 };
  96
  97 /**
  98  * struct brcmf_cfg80211_profile - profile information.
  99  *
 100  * @ssid: ssid of associated/associating ap.
 101  * @bssid: bssid of joined/joining ibss.
 102  * @sec: security information.
 103  */
 104 struct brcmf_cfg80211_profile {
 105         struct brcmf_ssid ssid;
 106         u8 bssid[ETH_ALEN];
 107         struct brcmf_cfg80211_security sec;
 108 };
 109
 110 /**
 111  * enum brcmf_vif_status - bit indices for vif status.
 112  *
 113  * @BRCMF_VIF_STATUS_READY: ready for operation.
 114  * @BRCMF_VIF_STATUS_CONNECTING: connect/join in progress.
 115  * @BRCMF_VIF_STATUS_CONNECTED: connected/joined succesfully.
 116  * @BRCMF_VIF_STATUS_AP_CREATING: interface configured for AP operation.
 117  * @BRCMF_VIF_STATUS_AP_CREATED: AP operation started.
 118  */
 119 enum brcmf_vif_status {
 120         BRCMF_VIF_STATUS_READY,
 121         BRCMF_VIF_STATUS_CONNECTING,
 122         BRCMF_VIF_STATUS_CONNECTED,
 123         BRCMF_VIF_STATUS_AP_CREATING,
 124         BRCMF_VIF_STATUS_AP_CREATED
 125 };
 126
 127 /**
 128  * struct vif_saved_ie - holds saved IEs for a virtual interface.
 129  *
 130  * @probe_res_ie: IE info for probe response.
 131  * @beacon_ie: IE info for beacon frame.
 132  * @probe_res_ie_len: IE info length for probe response.
 133  * @beacon_ie_len: IE info length for beacon frame.
 134  */
 135 struct vif_saved_ie {
 136         u8  probe_res_ie[IE_MAX_LEN];
 137         u8  beacon_ie[IE_MAX_LEN];
 138         u32 probe_res_ie_len;
 139         u32 beacon_ie_len;
 140 };
 141
 142 /**
 143  * struct brcmf_cfg80211_vif - virtual interface specific information.
 144  *
 145  * @ifp: lower layer interface pointer
 146  * @wdev: wireless device.
 147  * @profile: profile information.
 148  * @mode: operating mode.
 149  * @roam_off: roaming state.
 150  * @sme_state: SME state using enum brcmf_vif_status bits.
 151  * @pm_block: power-management blocked.
 152  * @list: linked list.
 153  */
 154 struct brcmf_cfg80211_vif {
 155         struct brcmf_if *ifp;
 156         struct wireless_dev wdev;
 157         struct brcmf_cfg80211_profile profile;
 158         s32 mode;
 159         s32 roam_off;
 160         unsigned long sme_state;
 161         bool pm_block;
 162         struct vif_saved_ie saved_ie;
 163         struct list_head list;
 164 };
 165
 166 /* association inform */
 167 struct brcmf_cfg80211_connect_info {
 168         u8 *req_ie;
 169         s32 req_ie_len;
 170         u8 *resp_ie;
 171         s32 resp_ie_len;
 172 };
 173
 174 /* assoc ie length */
 175 struct brcmf_cfg80211_assoc_ielen_le {
 176         __le32 req_len;
 177         __le32 resp_len;
 178 };
 179
 180 /* wpa2 pmk list */
 181 struct brcmf_cfg80211_pmk_list {
 182         struct pmkid_list pmkids;
 183         struct pmkid foo[MAXPMKID - 1];
 184 };
 185
 186 /* dongle escan state */
 187 enum wl_escan_state {
 188         WL_ESCAN_STATE_IDLE,
 189         WL_ESCAN_STATE_SCANNING
 190 };
 191
 192 struct escan_info {
 193         u32 escan_state;
 194         u8 escan_buf[WL_ESCAN_BUF_SIZE];
 195         struct wiphy *wiphy;
 196         struct net_device *ndev;
 197 };
 198
 199 /**
 200  * struct brcmf_pno_param_le - PNO scan configuration parameters
 201  *
 202  * @version: PNO parameters version.
 203  * @scan_freq: scan frequency.
 204  * @lost_network_timeout: #sec. to declare discovered network as lost.
 205  * @flags: Bit field to control features of PFN such as sort criteria auto
 206  *      enable switch and background scan.
 207  * @rssi_margin: Margin to avoid jitter for choosing a PFN based on RSSI sort
 208  *      criteria.
 209  * @bestn: number of best networks in each scan.
 210  * @mscan: number of scans recorded.
 211  * @repeat: minimum number of scan intervals before scan frequency changes
 212  *      in adaptive scan.
 213  * @exp: exponent of 2 for maximum scan interval.
 214  * @slow_freq: slow scan period.
 215  */
 216 struct brcmf_pno_param_le {
 217         __le32 version;
 218         __le32 scan_freq;
 219         __le32 lost_network_timeout;
 220         __le16 flags;
 221         __le16 rssi_margin;
 222         u8 bestn;
 223         u8 mscan;
 224         u8 repeat;
 225         u8 exp;
 226         __le32 slow_freq;
 227 };
 228
 229 /**
 230  * struct brcmf_pno_net_param_le - scan parameters per preferred network.
 231  *
 232  * @ssid: ssid name and its length.
 233  * @flags: bit2: hidden.
 234  * @infra: BSS vs IBSS.
 235  * @auth: Open vs Closed.
 236  * @wpa_auth: WPA type.
 237  * @wsec: wsec value.
 238  */
 239 struct brcmf_pno_net_param_le {
 240         struct brcmf_ssid_le ssid;
 241         __le32 flags;
 242         __le32 infra;
 243         __le32 auth;
 244         __le32 wpa_auth;
 245         __le32 wsec;
 246 };
 247
 248 /**
 249  * struct brcmf_pno_net_info_le - information per found network.
 250  *
 251  * @bssid: BSS network identifier.
 252  * @channel: channel number only.
 253  * @SSID_len: length of ssid.
 254  * @SSID: ssid characters.
 255  * @RSSI: receive signal strength (in dBm).
 256  * @timestamp: age in seconds.
 257  */
 258 struct brcmf_pno_net_info_le {
 259         u8 bssid[ETH_ALEN];
 260         u8 channel;
 261         u8 SSID_len;
 262         u8 SSID[32];
 263         __le16  RSSI;
 264         __le16  timestamp;
 265 };
 266
 267 /**
 268  * struct brcmf_pno_scanresults_le - result returned in PNO NET FOUND event.
 269  *
 270  * @version: PNO version identifier.
 271  * @status: indicates completion status of PNO scan.
 272  * @count: amount of brcmf_pno_net_info_le entries appended.
 273  */
 274 struct brcmf_pno_scanresults_le {
 275         __le32 version;
 276         __le32 status;
 277         __le32 count;
 278 };
 279
 280 /**
 281  * struct brcmf_cfg80211_info - dongle private data of cfg80211 interface
 282  *
 283  * @wiphy: wiphy object for cfg80211 interface.
 284  * @conf: dongle configuration.
 285  * @scan_request: cfg80211 scan request object.
 286  * @usr_sync: mainly for dongle up/down synchronization.
 287  * @bss_list: bss_list holding scanned ap information.
 288  * @scan_req_int: internal scan request object.
 289  * @bss_info: bss information for cfg80211 layer.
 290  * @ie: information element object for internal purpose.
 291  * @conn_info: association info.
 292  * @pmk_list: wpa2 pmk list.
 293  * @scan_status: scan activity on the dongle.
 294  * @pub: common driver information.
 295  * @channel: current channel.
 296  * @active_scan: current scan mode.
 297  * @sched_escan: e-scan for scheduled scan support running.
 298  * @ibss_starter: indicates this sta is ibss starter.
 299  * @pwr_save: indicate whether dongle to support power save mode.
 300  * @dongle_up: indicate whether dongle up or not.
 301  * @roam_on: on/off switch for dongle self-roaming.
 302  * @scan_tried: indicates if first scan attempted.
 303  * @dcmd_buf: dcmd buffer.
 304  * @extra_buf: mainly to grab assoc information.
 305  * @debugfsdir: debugfs folder for this device.
 306  * @escan_info: escan information.
 307  * @escan_timeout: Timer for catch scan timeout.
 308  * @escan_timeout_work: scan timeout worker.
 309  * @escan_ioctl_buf: dongle command buffer for escan commands.
 310  * @vif_list: linked list of vif instances.
 311  * @vif_cnt: number of vif instances.
 312  */
 313 struct brcmf_cfg80211_info {
 314         struct wiphy *wiphy;
 315         struct brcmf_cfg80211_conf *conf;
 316         struct cfg80211_scan_request *scan_request;
 317         struct mutex usr_sync;
 318         struct brcmf_scan_results *bss_list;
 319         struct brcmf_cfg80211_scan_req scan_req_int;
 320         struct wl_cfg80211_bss_info *bss_info;
 321         struct brcmf_cfg80211_ie ie;
 322         struct brcmf_cfg80211_connect_info conn_info;
 323         struct brcmf_cfg80211_pmk_list *pmk_list;
 324         unsigned long scan_status;
 325         struct brcmf_pub *pub;
 326         u32 channel;
 327         bool active_scan;
 328         bool sched_escan;
 329         bool ibss_starter;
 330         bool pwr_save;
 331         bool dongle_up;
 332         bool roam_on;
 333         bool scan_tried;
 334         u8 *dcmd_buf;
 335         u8 *extra_buf;
 336         struct dentry *debugfsdir;
 337         struct escan_info escan_info;
 338         struct timer_list escan_timeout;
 339         struct work_struct escan_timeout_work;
 340         u8 *escan_ioctl_buf;
 341         struct list_head vif_list;
 342         u8 vif_cnt;
 343 };
 344
 345 static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_info *cfg)
 346 {
 347         return cfg->wiphy;
 348 }
 349
 350 static inline struct brcmf_cfg80211_info *wiphy_to_cfg(struct wiphy *w)
 351 {
 352         return (struct brcmf_cfg80211_info *)(wiphy_priv(w));
 353 }
 354
 355 static inline struct brcmf_cfg80211_info *wdev_to_cfg(struct wireless_dev *wd)
 356 {
 357         return (struct brcmf_cfg80211_info *)(wdev_priv(wd));
 358 }
 359
 360 static inline
 361 struct net_device *cfg_to_ndev(struct brcmf_cfg80211_info *cfg)
 362 {
 363         struct brcmf_cfg80211_vif *vif;
 364         vif = list_first_entry(&cfg->vif_list, struct brcmf_cfg80211_vif, list);
 365         return vif->wdev.netdev;
 366 }
 367
 368 static inline struct brcmf_cfg80211_info *ndev_to_cfg(struct net_device *ndev)
 369 {
 370         return wdev_to_cfg(ndev->ieee80211_ptr);
 371 }
 372
 373 static inline struct brcmf_cfg80211_profile *ndev_to_prof(struct net_device *nd)
 374 {
 375         struct brcmf_if *ifp = netdev_priv(nd);
 376         return &ifp->vif->profile;
 377 }
 378
 379 static inline struct brcmf_cfg80211_vif *ndev_to_vif(struct net_device *ndev)
 380 {
 381         struct brcmf_if *ifp = netdev_priv(ndev);
 382         return ifp->vif;
 383 }
 384
 385 static inline struct
 386 brcmf_cfg80211_connect_info *cfg_to_conn(struct brcmf_cfg80211_info *cfg)
 387 {
 388         return &cfg->conn_info;
 389 }
 390
 391 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
 392                                                   struct device *busdev);
 393 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg);
 394 s32 brcmf_cfg80211_up(struct net_device *ndev);
 395 s32 brcmf_cfg80211_down(struct net_device *ndev);
 396
 397 #endif                          /* _wl_cfg80211_h_ */