mac80211: Add 802.11h CSA support
Move to the advertised channel on reception of
a CSA element. This is needed for 802.11h compliance.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 117718b..d2a007aa 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -259,6 +259,7 @@
#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
#define IEEE80211_STA_TKIP_WEP_USED BIT(14)
+#define IEEE80211_STA_CSA_RECEIVED BIT(15)
/* flags for MLME request */
#define IEEE80211_STA_REQ_SCAN 0
#define IEEE80211_STA_REQ_DIRECT_PROBE 1
@@ -283,7 +284,9 @@
struct ieee80211_if_sta {
struct timer_list timer;
+ struct timer_list chswitch_timer;
struct work_struct work;
+ struct work_struct chswitch_work;
u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
u8 ssid[IEEE80211_MAX_SSID_LEN];
enum ieee80211_sta_mlme_state state;
@@ -542,6 +545,7 @@
enum queue_stop_reason {
IEEE80211_QUEUE_STOP_REASON_DRIVER,
IEEE80211_QUEUE_STOP_REASON_PS,
+ IEEE80211_QUEUE_STOP_REASON_CSA
};
/* maximum number of hardware queues we support. */
@@ -631,7 +635,7 @@
unsigned long last_scan_completed;
struct delayed_work scan_work;
struct ieee80211_sub_if_data *scan_sdata;
- struct ieee80211_channel *oper_channel, *scan_channel;
+ struct ieee80211_channel *oper_channel, *scan_channel, *csa_channel;
enum nl80211_channel_type oper_channel_type;
u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
size_t scan_ssid_len;
@@ -964,6 +968,11 @@
void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
size_t len);
+void ieee80211_chswitch_timer(unsigned long data);
+void ieee80211_chswitch_work(struct work_struct *work);
+void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_channel_sw_ie *sw_elem,
+ struct ieee80211_bss *bss);
/* utility functions/constants */
extern void *mac80211_wiphy_privid; /* for wiphy privid */