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+#ifndef __NET_WIRELESS_H
+#define __NET_WIRELESS_H
+
+/*
+ * 802.11 device management
+ *
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ */
+
+#include <linux/netdevice.h>
+#include <linux/debugfs.h>
+#include <linux/list.h>
+#include <net/cfg80211.h>
+
+/**
+ * enum ieee80211_band - supported frequency bands
+ *
+ * The bands are assigned this way because the supported
+ * bitrates differ in these bands.
+ *
+ * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
+ * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
+ */
+enum ieee80211_band {
+ IEEE80211_BAND_2GHZ,
+ IEEE80211_BAND_5GHZ,
+
+ /* keep last */
+ IEEE80211_NUM_BANDS
+};
+
+/**
+ * enum ieee80211_channel_flags - channel flags
+ *
+ * Channel flags set by the regulatory control code.
+ *
+ * @IEEE80211_CHAN_DISABLED: This channel is disabled.
+ * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
+ * on this channel.
+ * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
+ * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
+ */
+enum ieee80211_channel_flags {
+ IEEE80211_CHAN_DISABLED = 1<<0,
+ IEEE80211_CHAN_PASSIVE_SCAN = 1<<1,
+ IEEE80211_CHAN_NO_IBSS = 1<<2,
+ IEEE80211_CHAN_RADAR = 1<<3,
+};
+
+/**
+ * struct ieee80211_channel - channel definition
+ *
+ * This structure describes a single channel for use
+ * with cfg80211.
+ *
+ * @center_freq: center frequency in MHz
+ * @hw_value: hardware-specific value for the channel
+ * @flags: channel flags from &enum ieee80211_channel_flags.
+ * @orig_flags: channel flags at registration time, used by regulatory
+ * code to support devices with additional restrictions
+ * @band: band this channel belongs to.
+ * @max_antenna_gain: maximum antenna gain in dBi
+ * @max_power: maximum transmission power (in dBm)
+ * @orig_mag: internal use
+ * @orig_mpwr: internal use
+ */
+struct ieee80211_channel {
+ enum ieee80211_band band;
+ u16 center_freq;
+ u16 hw_value;
+ u32 flags;
+ int max_antenna_gain;
+ int max_power;
+ u32 orig_flags;
+ int orig_mag, orig_mpwr;
+};
+
+/**
+ * enum ieee80211_rate_flags - rate flags
+ *
+ * Hardware/specification flags for rates. These are structured
+ * in a way that allows using the same bitrate structure for
+ * different bands/PHY modes.
+ *
+ * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
+ * preamble on this bitrate; only relevant in 2.4GHz band and
+ * with CCK rates.
+ * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
+ * when used with 802.11a (on the 5 GHz band); filled by the
+ * core code when registering the wiphy.
+ * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
+ * when used with 802.11b (on the 2.4 GHz band); filled by the
+ * core code when registering the wiphy.
+ * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
+ * when used with 802.11g (on the 2.4 GHz band); filled by the
+ * core code when registering the wiphy.
+ * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
+ */
+enum ieee80211_rate_flags {
+ IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
+ IEEE80211_RATE_MANDATORY_A = 1<<1,
+ IEEE80211_RATE_MANDATORY_B = 1<<2,
+ IEEE80211_RATE_MANDATORY_G = 1<<3,
+ IEEE80211_RATE_ERP_G = 1<<4,
+};
+
+/**
+ * struct ieee80211_rate - bitrate definition
+ *
+ * This structure describes a bitrate that an 802.11 PHY can
+ * operate with. The two values @hw_value and @hw_value_short
+ * are only for driver use when pointers to this structure are
+ * passed around.
+ *
+ * @flags: rate-specific flags
+ * @bitrate: bitrate in units of 100 Kbps
+ * @hw_value: driver/hardware value for this rate
+ * @hw_value_short: driver/hardware value for this rate when
+ * short preamble is used
+ */
+struct ieee80211_rate {
+ u32 flags;
+ u16 bitrate;
+ u16 hw_value, hw_value_short;
+};
+
+/**
+ * struct ieee80211_ht_info - describing STA's HT capabilities
+ *
+ * This structure describes most essential parameters needed
+ * to describe 802.11n HT capabilities for an STA.
+ *
+ * @ht_supported: is HT supported by STA, 0: no, 1: yes
+ * @cap: HT capabilities map as described in 802.11n spec
+ * @ampdu_factor: Maximum A-MPDU length factor
+ * @ampdu_density: Minimum A-MPDU spacing
+ * @supp_mcs_set: Supported MCS set as described in 802.11n spec
+ */
+struct ieee80211_ht_info {
+ u16 cap; /* use IEEE80211_HT_CAP_ */
+ u8 ht_supported;
+ u8 ampdu_factor;
+ u8 ampdu_density;
+ u8 supp_mcs_set[16];
+};
+
+/**
+ * struct ieee80211_supported_band - frequency band definition
+ *
+ * This structure describes a frequency band a wiphy
+ * is able to operate in.
+ *
+ * @channels: Array of channels the hardware can operate in
+ * in this band.
+ * @band: the band this structure represents
+ * @n_channels: Number of channels in @channels
+ * @bitrates: Array of bitrates the hardware can operate with
+ * in this band. Must be sorted to give a valid "supported
+ * rates" IE, i.e. CCK rates first, then OFDM.
+ * @n_bitrates: Number of bitrates in @bitrates
+ */
+struct ieee80211_supported_band {
+ struct ieee80211_channel *channels;
+ struct ieee80211_rate *bitrates;
+ enum ieee80211_band band;
+ int n_channels;
+ int n_bitrates;
+ struct ieee80211_ht_info ht_info;
+};
+
+/**
+ * struct wiphy - wireless hardware description
+ * @idx: the wiphy index assigned to this item
+ * @class_dev: the class device representing /sys/class/ieee80211/<wiphy-name>
+ */
+struct wiphy {
+ /* assign these fields before you register the wiphy */
+
+ /* permanent MAC address */
+ u8 perm_addr[ETH_ALEN];
+
+ /* If multiple wiphys are registered and you're handed e.g.
+ * a regular netdev with assigned ieee80211_ptr, you won't
+ * know whether it points to a wiphy your driver has registered
+ * or not. Assign this to something global to your driver to
+ * help determine whether you own this wiphy or not. */
+ void *privid;
+
+ struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
+
+ /* fields below are read-only, assigned by cfg80211 */
+
+ /* the item in /sys/class/ieee80211/ points to this,
+ * you need use set_wiphy_dev() (see below) */
+ struct device dev;
+
+ /* dir in debugfs: ieee80211/<wiphyname> */
+ struct dentry *debugfsdir;
+
+ char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
+};
+
+/** struct wireless_dev - wireless per-netdev state
+ *
+ * This structure must be allocated by the driver/stack
+ * that uses the ieee80211_ptr field in struct net_device
+ * (this is intentional so it can be allocated along with
+ * the netdev.)
+ *
+ * @wiphy: pointer to hardware description
+ */
+struct wireless_dev {
+ struct wiphy *wiphy;
+
+ /* private to the generic wireless code */
+ struct list_head list;
+ struct net_device *netdev;
+};
+
+/**
+ * wiphy_priv - return priv from wiphy
+ */
+static inline void *wiphy_priv(struct wiphy *wiphy)
+{
+ BUG_ON(!wiphy);
+ return &wiphy->priv;
+}
+
+/**
+ * set_wiphy_dev - set device pointer for wiphy
+ */
+static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
+{
+ wiphy->dev.parent = dev;
+}
+
+/**
+ * wiphy_dev - get wiphy dev pointer
+ */
+static inline struct device *wiphy_dev(struct wiphy *wiphy)
+{
+ return wiphy->dev.parent;
+}
+
+/**
+ * wiphy_name - get wiphy name
+ */
+static inline char *wiphy_name(struct wiphy *wiphy)
+{
+ return wiphy->dev.bus_id;
+}
+
+/**
+ * wdev_priv - return wiphy priv from wireless_dev
+ */
+static inline void *wdev_priv(struct wireless_dev *wdev)
+{
+ BUG_ON(!wdev);
+ return wiphy_priv(wdev->wiphy);
+}
+
+/**
+ * wiphy_new - create a new wiphy for use with cfg80211
+ *
+ * create a new wiphy and associate the given operations with it.
+ * @sizeof_priv bytes are allocated for private use.
+ *
+ * the returned pointer must be assigned to each netdev's
+ * ieee80211_ptr for proper operation.
+ */
+struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv);
+
+/**
+ * wiphy_register - register a wiphy with cfg80211
+ *
+ * register the given wiphy
+ *
+ * Returns a non-negative wiphy index or a negative error code.
+ */
+extern int wiphy_register(struct wiphy *wiphy);
+
+/**
+ * wiphy_unregister - deregister a wiphy from cfg80211
+ *
+ * unregister a device with the given priv pointer.
+ * After this call, no more requests can be made with this priv
+ * pointer, but the call may sleep to wait for an outstanding
+ * request that is being handled.
+ */
+extern void wiphy_unregister(struct wiphy *wiphy);
+
+/**
+ * wiphy_free - free wiphy
+ */
+extern void wiphy_free(struct wiphy *wiphy);
+
+/**
+ * ieee80211_channel_to_frequency - convert channel number to frequency
+ */
+extern int ieee80211_channel_to_frequency(int chan);
+
+/**
+ * ieee80211_frequency_to_channel - convert frequency to channel number
+ */
+extern int ieee80211_frequency_to_channel(int freq);
+
+#endif /* __NET_WIRELESS_H */