wlan_api.h

Linux下SDIO设备的驱动程序

/*
 * Copyright (c) 2004-2006 Atheros Communications Inc.
 *
 *  Wireless Network driver for Atheros AR6001
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation;
 *
 *  Software distributed under the License is distributed on an "AS
 *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 *  implied. See the License for the specific language governing
 *  rights and limitations under the License.
 *
 *
 * This file contains the API for the host wlan module
 *
 *
 */

#ifndef _HOST_WLAN_API_H_
#define _HOST_WLAN_API_H_

#ifdef __cplusplus
extern "C" {
#endif

struct ieee80211_node_table;
struct ieee80211_frame;

struct ieee80211_common_ie {
    A_UINT16    ie_chan;
    A_UINT8     *ie_tstamp;
    A_UINT8     *ie_ssid;
    A_UINT8     *ie_rates;
    A_UINT8     *ie_xrates;
    A_UINT8     *ie_country;
    A_UINT8     *ie_wpa;
    A_UINT8     *ie_wmm;
    A_UINT8     *ie_ath;
    A_UINT16    ie_capInfo;
    A_UINT16    ie_beaconInt;
    A_UINT8     *ie_tim;
    A_UINT8     *ie_chswitch;
    A_UINT8     ie_erp;
};

typedef struct bss {
    A_UINT8                      ni_macaddr[6];
    A_INT8                       ni_rssi;
    struct bss                   *ni_list_next;
    struct bss                   *ni_list_prev;
    struct bss                   *ni_hash_next;
    struct bss                   *ni_hash_prev;
    struct ieee80211_common_ie   ni_cie;
    A_UINT8                     *ni_buf;
    struct ieee80211_node_table *ni_table;
    A_UINT32                     ni_refcnt;
    int                          ni_scangen;
    A_UINT32                     ni_tstamp;
} bss_t;

typedef void wlan_node_iter_func(void *arg, bss_t *);

bss_t *wlan_node_alloc(struct ieee80211_node_table *nt, int wh_size);
void wlan_node_free(bss_t *ni);
void wlan_setup_node(struct ieee80211_node_table *nt, bss_t *ni,
                const A_UINT8 *macaddr);
bss_t *wlan_find_node(struct ieee80211_node_table *nt, const A_UINT8 *macaddr);
void wlan_node_reclaim(struct ieee80211_node_table *nt, bss_t *ni);
void wlan_free_allnodes(struct ieee80211_node_table *nt);
void wlan_iterate_nodes(struct ieee80211_node_table *nt, wlan_node_iter_func *f,
                        void *arg);

void wlan_node_table_init(void *wmip, struct ieee80211_node_table *nt);
void wlan_node_table_reset(struct ieee80211_node_table *nt);
void wlan_node_table_cleanup(struct ieee80211_node_table *nt);

A_STATUS wlan_parse_beacon(A_UINT8 *buf, int framelen,
                           struct ieee80211_common_ie *cie);

A_UINT16 wlan_ieee2freq(int chan);
A_UINT32 wlan_freq2ieee(A_UINT16 freq);


#ifdef __cplusplus
}
#endif

#endif /* _HOST_WLAN_API_H_ */