caif: Restructure how link caif link layer enroll

Enrolling CAIF link layers are refactored.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 26 insertions, 4 deletions

diff --git a/include/net/caif/caif_dev.h b/include/net/caif/caif_dev.h
index c011281d92c0..ef2dd9438bb1 100644
--- a/include/net/caif/caif_dev.h
+++ b/include/net/caif/caif_dev.h
@@ -9,6 +9,7 @@
 
 #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>
@@ -104,4 +105,24 @@ void caif_client_register_refcnt(struct cflayer *adapt_layer,
  */
 void caif_free_client(struct cflayer *adap_layer);
 
+/**
+ * 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.
+ */
+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_ */
diff --git a/include/net/caif/cfcnfg.h b/include/net/caif/cfcnfg.h
index 3e93a4a4b677..a421723e986f 100644
--- a/include/net/caif/cfcnfg.h
+++ b/include/net/caif/cfcnfg.h
@@ -72,15 +72,16 @@ void cfcnfg_remove(struct cfcnfg *cfg);
  * @phy_layer:  Specify the physical layer. The transmit function
  *              MUST be set in the structure.
  * @pref:       The phy (link layer) preference.
+ * @link_support: Protocol implementation for link layer specific protocol.
  * @fcs:        Specify if checksum is used in CAIF Framing Layer.
- * @stx:        Specify if Start Of Frame eXtention is used.
+ * @head_room:  Head space needed by link specific protocol.
  */
-
 void
-cfcnfg_add_phy_layer(struct cfcnfg *cnfg, enum cfcnfg_phy_type phy_type,
+cfcnfg_add_phy_layer(struct cfcnfg *cnfg,
                      struct net_device *dev, struct cflayer *phy_layer,
                      enum cfcnfg_phy_preference pref,
-                     bool fcs, bool stx);
+                     struct cflayer *link_support,
+                     bool fcs, int head_room);
 
 /**
  * cfcnfg_del_phy_layer - Deletes an phy layer from the CAIF stack.