diff options
Diffstat (limited to 'drivers/net/wireless/ath6kl/wlan/include/ieee80211_node.h')
-rw-r--r-- | drivers/net/wireless/ath6kl/wlan/include/ieee80211_node.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath6kl/wlan/include/ieee80211_node.h b/drivers/net/wireless/ath6kl/wlan/include/ieee80211_node.h new file mode 100644 index 000000000000..faa1d653509e --- /dev/null +++ b/drivers/net/wireless/ath6kl/wlan/include/ieee80211_node.h @@ -0,0 +1,81 @@ +//------------------------------------------------------------------------------ +// <copyright file="ieee80211_node.h" company="Atheros"> +// Copyright (c) 2004-2008 Atheros Corporation. All rights reserved. +// +// 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. +// +// +//------------------------------------------------------------------------------ +//============================================================================== +// Author(s): ="Atheros" +//============================================================================== +#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) if (A_IS_MUTEX_VALID(&(_nt)->nt_nodelock)) { \ + A_MUTEX_DELETE(&(_nt)->nt_nodelock); } + +#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--) == 1) +#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 */ + A_UINT32 nt_nodeAge; /* node aging time */ +#ifdef OS_ROAM_MANAGEMENT + A_UINT32 nt_si_gen; /* gen# for scan indication*/ +#endif +}; + +#define WLAN_NODE_INACT_TIMEOUT_MSEC 120000 + +#endif /* _IEEE80211_NODE_H_ */ |