iwlagn: add support for waiting for notifications
In order to implement waiting for notifications,
add a structure that captures the information,
and a list of such structures that will be
traversed when a command is received from the
ucode.
Use sparse checking to make sure calls to the
prepare/wait/cancel functions are always nested
correctly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.h b/drivers/net/wireless/iwlwifi/iwl-agn.h
index c30dc4f..74d72ff 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.h
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.h
@@ -329,6 +329,21 @@
int iwlcore_eeprom_acquire_semaphore(struct iwl_priv *priv);
void iwlcore_eeprom_release_semaphore(struct iwl_priv *priv);
+/* notification wait support */
+void __acquires(wait_entry)
+iwlagn_init_notification_wait(struct iwl_priv *priv,
+ struct iwl_notification_wait *wait_entry,
+ void (*fn)(struct iwl_priv *priv,
+ struct iwl_rx_packet *pkt),
+ u8 cmd);
+signed long __releases(wait_entry)
+iwlagn_wait_notification(struct iwl_priv *priv,
+ struct iwl_notification_wait *wait_entry,
+ unsigned long timeout);
+void __releases(wait_entry)
+iwlagn_remove_notification(struct iwl_priv *priv,
+ struct iwl_notification_wait *wait_entry);
+
/* mac80211 handlers (for 4965) */
int iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
int iwlagn_mac_start(struct ieee80211_hw *hw);