diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn-lib.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-lib.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c index 3dee87e8f55..29dcda0bde6 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c @@ -473,6 +473,11 @@ void iwlagn_rx_handler_setup(struct iwl_priv *priv) priv->rx_handlers[CALIBRATION_COMPLETE_NOTIFICATION] = iwlagn_rx_calib_complete; priv->rx_handlers[REPLY_TX] = iwlagn_rx_reply_tx; + + /* set up notification wait support */ + spin_lock_init(&priv->_agn.notif_wait_lock); + INIT_LIST_HEAD(&priv->_agn.notif_waits); + init_waitqueue_head(&priv->_agn.notif_waitq); } void iwlagn_setup_deferred_work(struct iwl_priv *priv) @@ -2389,3 +2394,44 @@ int iwl_dump_fh(struct iwl_priv *priv, char **buf, bool display) } return 0; } + +/* notification wait support */ +void 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) +{ + wait_entry->fn = fn; + wait_entry->cmd = cmd; + wait_entry->triggered = false; + + spin_lock_bh(&priv->_agn.notif_wait_lock); + list_add(&wait_entry->list, &priv->_agn.notif_waits); + spin_unlock_bh(&priv->_agn.notif_wait_lock); +} + +signed long iwlagn_wait_notification(struct iwl_priv *priv, + struct iwl_notification_wait *wait_entry, + unsigned long timeout) +{ + int ret; + + ret = wait_event_timeout(priv->_agn.notif_waitq, + &wait_entry->triggered, + timeout); + + spin_lock_bh(&priv->_agn.notif_wait_lock); + list_del(&wait_entry->list); + spin_unlock_bh(&priv->_agn.notif_wait_lock); + + return ret; +} + +void iwlagn_remove_notification(struct iwl_priv *priv, + struct iwl_notification_wait *wait_entry) +{ + spin_lock_bh(&priv->_agn.notif_wait_lock); + list_del(&wait_entry->list); + spin_unlock_bh(&priv->_agn.notif_wait_lock); +} |