[CAN]: Add broadcast manager (bcm) protocol

This patch adds the CAN broadcast manager (bcm) protocol.

Signed-off-by: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
Signed-off-by: Urs Thuermann <urs.thuermann@volkswagen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 13 insertions, 0 deletions

diff --git a/net/can/Kconfig b/net/can/Kconfig
index 4718d1f50ab..182b96b80eb 100644
--- a/net/can/Kconfig
+++ b/net/can/Kconfig
@@ -26,3 +26,16 @@ config CAN_RAW
           most cases where no higher level protocol is being used. The raw
           socket has several filter options e.g. ID masking / error frames.
           To receive/send raw CAN messages, use AF_CAN with protocol CAN_RAW.
+
+config CAN_BCM
+        tristate "Broadcast Manager CAN Protocol (with content filtering)"
+        depends on CAN
+        default N
+        ---help---
+          The Broadcast Manager offers content filtering, timeout monitoring,
+          sending of RTR frames, and cyclic CAN messages without permanent user
+          interaction. The BCM can be 'programmed' via the BSD socket API and
+          informs you on demand e.g. only on content updates / timeouts.
+          You probably want to use the bcm socket in most cases where cyclic
+          CAN messages are used on the bus (e.g. in automotive environments).
+          To use the Broadcast Manager, use AF_CAN with protocol CAN_BCM.