drivers/net/wireless/libertas/scan.h

   1 /**
   2   * Interface for the wlan network scan routines
   3   *
   4   * Driver interface functions and type declarations for the scan module
   5   * implemented in scan.c.
   6   */
   7 #ifndef _LBS_SCAN_H
   8 #define _LBS_SCAN_H
   9
  10 #include <net/ieee80211.h>
  11 #include "hostcmd.h"
  12
  13 /**
  14  *  @brief Maximum number of channels that can be sent in a setuserscan ioctl
  15  */
  16 #define LBS_IOCTL_USER_SCAN_CHAN_MAX  50
  17
  18 //! Infrastructure BSS scan type in cmd_ds_802_11_scan
  19 #define LBS_SCAN_BSS_TYPE_BSS         1
  20
  21 //! Adhoc BSS scan type in cmd_ds_802_11_scan
  22 #define LBS_SCAN_BSS_TYPE_IBSS        2
  23
  24 //! Adhoc or Infrastructure BSS scan type in cmd_ds_802_11_scan, no filter
  25 #define LBS_SCAN_BSS_TYPE_ANY         3
  26
  27 /**
  28  *  @brief Structure used to store information for each beacon/probe response
  29  */
  30 struct bss_descriptor {
  31         u8 bssid[ETH_ALEN];
  32
  33         u8 ssid[IW_ESSID_MAX_SIZE + 1];
  34         u8 ssid_len;
  35
  36         u16 capability;
  37
  38         /* receive signal strength in dBm */
  39         long rssi;
  40
  41         u32 channel;
  42
  43         u16 beaconperiod;
  44
  45         u32 atimwindow;
  46
  47         /* IW_MODE_AUTO, IW_MODE_ADHOC, IW_MODE_INFRA */
  48         u8 mode;
  49
  50         /* zero-terminated array of supported data rates */
  51         u8 rates[MAX_RATES + 1];
  52
  53         unsigned long last_scanned;
  54
  55         union ieeetypes_phyparamset phyparamset;
  56         union IEEEtypes_ssparamset ssparamset;
  57
  58         struct ieeetypes_countryinfofullset countryinfo;
  59
  60         u8 wpa_ie[MAX_WPA_IE_LEN];
  61         size_t wpa_ie_len;
  62         u8 rsn_ie[MAX_WPA_IE_LEN];
  63         size_t rsn_ie_len;
  64
  65         u8 mesh;
  66
  67         struct list_head list;
  68 };
  69
  70 int lbs_ssid_cmp(u8 *ssid1, u8 ssid1_len, u8 *ssid2, u8 ssid2_len);
  71
  72 struct bss_descriptor *lbs_find_ssid_in_list(struct lbs_private *priv,
  73                 u8 *ssid, u8 ssid_len, u8 *bssid, u8 mode,
  74                 int channel);
  75
  76 struct bss_descriptor *lbs_find_bssid_in_list(struct lbs_private *priv,
  77         u8 *bssid, u8 mode);
  78
  79 int lbs_find_best_network_ssid(struct lbs_private *priv, u8 *out_ssid,
  80                         u8 *out_ssid_len, u8 preferred_mode, u8 *out_mode);
  81
  82 int lbs_send_specific_ssid_scan(struct lbs_private *priv, u8 *ssid,
  83                                 u8 ssid_len);
  84
  85 int lbs_get_scan(struct net_device *dev, struct iw_request_info *info,
  86                          struct iw_point *dwrq, char *extra);
  87 int lbs_set_scan(struct net_device *dev, struct iw_request_info *info,
  88                          union iwreq_data *wrqu, char *extra);
  89
  90 void lbs_scan_worker(struct work_struct *work);
  91
  92 #endif