1 files changed, 44 insertions, 23 deletions

diff --git a/include/net/caif/caif_dev.h b/include/net/caif/caif_dev.h
index 8eff83b9536..028b754ae9b 100644
--- a/include/net/caif/caif_dev.h
+++ b/include/net/caif/caif_dev.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) ST-Ericsson AB 2010
- * Author:	Sjur Brendeland/ sjur.brandeland@stericsson.com
+ * Author:	Sjur Brendeland
  * License terms: GNU General Public License (GPL) version 2
  */
 
@@ -9,8 +9,10 @@
 
 #include <net/caif/caif_layer.h>
 #include <net/caif/cfcnfg.h>
+#include <net/caif/caif_device.h>
 #include <linux/caif/caif_socket.h>
 #include <linux/if.h>
+#include <linux/net.h>
 
 /**
  * struct caif_param - CAIF parameters.
@@ -62,46 +64,65 @@ struct caif_connect_request {
  * E.g. CAIF Socket will call this function for each socket it connects
  * and have one client_layer instance for each socket.
  */
-int caif_connect_client(struct caif_connect_request *conn_req,
+int caif_connect_client(struct net *net,
+			struct caif_connect_request *conn_req,
 			struct cflayer *client_layer, int *ifindex,
 			int *headroom, int *tailroom);
 
 /**
  * caif_disconnect_client - Disconnects a client from the CAIF stack.
  *
- * @client_layer: Client layer to be removed.
+ * @client_layer: Client layer to be disconnected.
  */
-int caif_disconnect_client(struct cflayer *client_layer);
+int caif_disconnect_client(struct net *net, struct cflayer *client_layer);
+
 
 /**
- * caif_release_client - Release adaptation layer reference to client.
+ * caif_client_register_refcnt - register ref-count functions provided by client.
  *
- * @client_layer: Client layer.
+ * @adapt_layer: Client layer using CAIF Stack.
+ * @hold:	Function provided by client layer increasing ref-count
+ * @put:	Function provided by client layer decreasing ref-count
  *
- * Releases a client/adaptation layer use of the caif stack.
- * This function must be used after caif_disconnect_client to
- * decrease the reference count of the service layer.
+ * Client of the CAIF Stack must register functions for reference counting.
+ * These functions are called by the CAIF Stack for every upstream packet,
+ * and must therefore be implemented efficiently.
+ *
+ * Client should call caif_free_client when reference count degrease to zero.
  */
-void caif_release_client(struct cflayer *client_layer);
 
+void caif_client_register_refcnt(struct cflayer *adapt_layer,
+					void (*hold)(struct cflayer *lyr),
+					void (*put)(struct cflayer *lyr));
 /**
- * connect_req_to_link_param - Translate configuration parameters
- *				from socket format to internal format.
- * @cnfg:	Pointer to configuration handler
- * @con_req:	Configuration parameters supplied in function
- *		caif_connect_client
- * @channel_setup_param: Parameters supplied to the CAIF Core stack for
- *			 setting up channels.
+ * caif_free_client - Free memory used to manage the client in the CAIF Stack.
  *
+ * @client_layer: Client layer to be removed.
+ *
+ * This function must be called from client layer in order to free memory.
+ * Caller must guarantee that no packets are in flight upstream when calling
+ * this function.
  */
-int connect_req_to_link_param(struct cfcnfg *cnfg,
-				struct caif_connect_request *con_req,
-				struct cfctrl_link_param *channel_setup_param);
+void caif_free_client(struct cflayer *adap_layer);
 
 /**
- * get_caif_conf() - Get the configuration handler.
+ * struct caif_enroll_dev - Enroll a net-device as a CAIF Link layer
+ * @dev:		Network device to enroll.
+ * @caifdev:		Configuration information from CAIF Link Layer
+ * @link_support:	Link layer support layer
+ * @head_room:		Head room needed by link support layer
+ * @layer:		Lowest layer in CAIF stack
+ * @rcv_fun:		Receive function for CAIF stack.
+ *
+ * This function enroll a CAIF link layer into CAIF Stack and
+ * expects the interface to be able to handle CAIF payload.
+ * The link_support layer is used to add any Link Layer specific
+ * framing.
  */
-struct cfcnfg *get_caif_conf(void);
-
+void caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev,
+			struct cflayer *link_support, int head_room,
+			struct cflayer **layer, int (**rcv_func)(
+				struct sk_buff *, struct net_device *,
+				struct packet_type *, struct net_device *));
 
 #endif /* CAIF_DEV_H_ */