diff options
Diffstat (limited to 'drivers/ar6000/include/ieee80211_node.h')
| -rw-r--r-- | drivers/ar6000/include/ieee80211_node.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/ar6000/include/ieee80211_node.h b/drivers/ar6000/include/ieee80211_node.h new file mode 100644 index 00000000000..46b613c09c6 --- /dev/null +++ b/drivers/ar6000/include/ieee80211_node.h @@ -0,0 +1,77 @@ +/*- + * Copyright (c) 2001 Atsushi Onoe + * Copyright (c) 2002-2004 Sam Leffler, Errno Consulting + * Copyright (c) 2006 Atheros Communications, Inc. + * + * Wireless Network driver for Atheros AR6001 + * All rights reserved. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ +#ifndef _IEEE80211_NODE_H_ +#define _IEEE80211_NODE_H_ + +/* + * Node locking definitions. + */ +#define IEEE80211_NODE_LOCK_INIT(_nt) A_MUTEX_INIT(&(_nt)->nt_nodelock) +#define IEEE80211_NODE_LOCK_DESTROY(_nt) +#define IEEE80211_NODE_LOCK(_nt) A_MUTEX_LOCK(&(_nt)->nt_nodelock) +#define IEEE80211_NODE_UNLOCK(_nt) A_MUTEX_UNLOCK(&(_nt)->nt_nodelock) +#define IEEE80211_NODE_LOCK_BH(_nt) A_MUTEX_LOCK(&(_nt)->nt_nodelock) +#define IEEE80211_NODE_UNLOCK_BH(_nt) A_MUTEX_UNLOCK(&(_nt)->nt_nodelock) +#define IEEE80211_NODE_LOCK_ASSERT(_nt) + +/* + * Node reference counting definitions. + * + * ieee80211_node_initref initialize the reference count to 1 + * ieee80211_node_incref add a reference + * ieee80211_node_decref remove a reference + * ieee80211_node_dectestref remove a reference and return 1 if this + * is the last reference, otherwise 0 + * ieee80211_node_refcnt reference count for printing (only) + */ +#define ieee80211_node_initref(_ni) ((_ni)->ni_refcnt = 1) +#define ieee80211_node_incref(_ni) ((_ni)->ni_refcnt++) +#define ieee80211_node_decref(_ni) ((_ni)->ni_refcnt--) +#define ieee80211_node_dectestref(_ni) (((_ni)->ni_refcnt--) == 0) +#define ieee80211_node_refcnt(_ni) ((_ni)->ni_refcnt) + +#define IEEE80211_NODE_HASHSIZE 32 +/* simple hash is enough for variation of macaddr */ +#define IEEE80211_NODE_HASH(addr) \ + (((const A_UINT8 *)(addr))[IEEE80211_ADDR_LEN - 1] % \ + IEEE80211_NODE_HASHSIZE) + +/* + * Table of ieee80211_node instances. Each ieee80211com + * has at least one for holding the scan candidates. + * When operating as an access point or in ibss mode there + * is a second table for associated stations or neighbors. + */ +struct ieee80211_node_table { + void *nt_wmip; /* back reference */ + A_MUTEX_T nt_nodelock; /* on node table */ + struct bss *nt_node_first; /* information of all nodes */ + struct bss *nt_node_last; /* information of all nodes */ + struct bss *nt_hash[IEEE80211_NODE_HASHSIZE]; + const char *nt_name; /* for debugging */ + A_UINT32 nt_scangen; /* gen# for timeout scan */ + A_TIMER nt_inact_timer; + A_UINT8 isTimerArmed; /* is the node timer armed */ +}; + +#define WLAN_NODE_INACT_TIMEOUT_MSEC 10000 + +#endif /* _IEEE80211_NODE_H_ */ |