4 files changed, 53 insertions, 10 deletions
diff --git a/include/net/caif/caif_dev.h b/include/net/caif/caif_dev.h
index 42a7c786784..318ab9478a4 100644
--- a/include/net/caif/caif_dev.h
+++ b/include/net/caif/caif_dev.h
@@ -23,17 +23,19 @@ struct caif_param {
 };
 
 /**
- * caif_connect_request - Request data for CAIF channel setup.
+ * struct caif_connect_request - Request data for CAIF channel setup.
+ * @protocol:		Type of CAIF protocol to use (at, datagram etc)
  * @sockaddr:		Socket address to connect.
  * @priority:		Priority of the connection.
  * @link_selector:	Link selector (high bandwidth or low latency)
  * @link_name:		Name of the CAIF Link Layer to use.
+ * @param:		Connect Request parameters (CAIF_SO_REQ_PARAM).
  *
  * This struct is used when connecting a CAIF channel.
  * It contains all CAIF channel configuration options.
  */
 struct caif_connect_request {
-	int protocol;
+	enum caif_protocol_type protocol;
 	struct sockaddr_caif sockaddr;
 	enum caif_channel_priority priority;
 	enum caif_link_selector link_selector;
@@ -68,6 +70,17 @@ int caif_connect_client(struct caif_connect_request *config,
 int caif_disconnect_client(struct cflayer *client_layer);
 
 /**
+ * caif_release_client - Release adaptation layer reference to client.
+ *
+ * @client_layer: Client layer.
+ *
+ * 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.
+ */
+void caif_release_client(struct cflayer *client_layer);
+
+/**
  * connect_req_to_link_param - Translate configuration parameters
  *				from socket format to internal format.
  * @cnfg:	Pointer to configuration handler
diff --git a/include/net/caif/cfcnfg.h b/include/net/caif/cfcnfg.h
index 366082c5d43..9fc2fc20b88 100644
--- a/include/net/caif/cfcnfg.h
+++ b/include/net/caif/cfcnfg.h
@@ -87,13 +87,21 @@ cfcnfg_add_phy_layer(struct cfcnfg *cnfg, enum cfcnfg_phy_type phy_type,
 int cfcnfg_del_phy_layer(struct cfcnfg *cnfg, struct cflayer *phy_layer);
 
 /**
- * cfcnfg_del_adapt_layer - Deletes an adaptation layer from the CAIF stack.
+ * cfcnfg_disconn_adapt_layer - Disconnects an adaptation layer.
  *
  * @cnfg:	Pointer to a CAIF configuration object, created by
  *		cfcnfg_create().
  * @adap_layer: Adaptation layer to be removed.
  */
-int cfcnfg_del_adapt_layer(struct cfcnfg *cnfg, struct cflayer *adap_layer);
+int cfcnfg_disconn_adapt_layer(struct cfcnfg *cnfg,
+			struct cflayer *adap_layer);
+
+/**
+ * cfcnfg_release_adap_layer - Used by client to release the adaptation layer.
+ *
+ * @adap_layer: Adaptation layer.
+ */
+void cfcnfg_release_adap_layer(struct cflayer *adap_layer);
 
 /**
  * cfcnfg_add_adaptation_layer - Add an adaptation layer to the CAIF stack.
@@ -102,14 +110,13 @@ int cfcnfg_del_adapt_layer(struct cfcnfg *cnfg, struct cflayer *adap_layer);
  * driver functionality is implemented.
  *
  * @cnfg:		Pointer to a CAIF configuration object, created by
- *				cfcnfg_create().
+ *			cfcnfg_create().
  * @param:		Link setup parameters.
  * @adap_layer:		Specify the adaptation layer; the receive and
  *			flow-control functions MUST be set in the structure.
  *
  */
-int
-cfcnfg_add_adaptation_layer(struct cfcnfg *cnfg,
+int cfcnfg_add_adaptation_layer(struct cfcnfg *cnfg,
 			    struct cfctrl_link_param *param,
 			    struct cflayer *adap_layer);
 
diff --git a/include/net/caif/cfctrl.h b/include/net/caif/cfctrl.h
index dee25b86caa..997603f2bf4 100644
--- a/include/net/caif/cfctrl.h
+++ b/include/net/caif/cfctrl.h
@@ -43,8 +43,7 @@ struct cfctrl_rsp {
 	void (*linksetup_rsp)(struct cflayer *layer, u8 linkid,
 			      enum cfctrl_srv serv, u8 phyid,
 			      struct cflayer *adapt_layer);
-	void (*linkdestroy_rsp)(struct cflayer *layer, u8 linkid,
-				struct cflayer *client_layer);
+	void (*linkdestroy_rsp)(struct cflayer *layer, u8 linkid);
 	void (*linkerror_ind)(void);
 	void (*enum_rsp)(void);
 	void (*sleep_rsp)(void);
@@ -117,7 +116,7 @@ struct cfctrl {
 };
 
 void cfctrl_enum_req(struct cflayer *cfctrl, u8 physlinkid);
-void cfctrl_linkup_request(struct cflayer *cfctrl,
+int cfctrl_linkup_request(struct cflayer *cfctrl,
 			   struct cfctrl_link_param *param,
 			   struct cflayer *user_layer);
 int  cfctrl_linkdown_req(struct cflayer *cfctrl, u8 linkid,
@@ -135,4 +134,6 @@ void cfctrl_insert_req(struct cfctrl *ctrl,
 			      struct cfctrl_request_info *req);
 struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl,
 					      struct cfctrl_request_info *req);
+void cfctrl_cancel_req(struct cflayer *layr, struct cflayer *adap_layer);
+
 #endif				/* CFCTRL_H_ */
diff --git a/include/net/caif/cfsrvl.h b/include/net/caif/cfsrvl.h
index b2a12db20cd..2dc9eb193ec 100644
--- a/include/net/caif/cfsrvl.h
+++ b/include/net/caif/cfsrvl.h
@@ -9,14 +9,18 @@
 #include <linux/list.h>
 #include <linux/stddef.h>
 #include <linux/types.h>
+#include <linux/kref.h>
+
 struct cfsrvl {
 	struct cflayer layer;
 	bool open;
 	bool phy_flow_on;
 	bool modem_flow_on;
 	struct dev_info dev_info;
+	struct kref ref;
 };
 
+void cfsrvl_release(struct kref *kref);
 struct cflayer *cfvei_create(u8 linkid, struct dev_info *dev_info);
 struct cflayer *cfdgml_create(u8 linkid, struct dev_info *dev_info);
 struct cflayer *cfutill_create(u8 linkid, struct dev_info *dev_info);
@@ -31,4 +35,22 @@ void cfsrvl_init(struct cfsrvl *service,
 bool cfsrvl_ready(struct cfsrvl *service, int *err);
 u8 cfsrvl_getphyid(struct cflayer *layer);
 
+static inline void cfsrvl_get(struct cflayer *layr)
+{
+	struct cfsrvl *s;
+	if (layr == NULL)
+		return;
+	s = container_of(layr, struct cfsrvl, layer);
+	kref_get(&s->ref);
+}
+
+static inline void cfsrvl_put(struct cflayer *layr)
+{
+	struct cfsrvl *s;
+	if (layr == NULL)
+		return;
+	s = container_of(layr, struct cfsrvl, layer);
+	kref_put(&s->ref, cfsrvl_release);
+}
+
 #endif				/* CFSRVL_H_ */