can-j1939: update headers with j1939

Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

GNUmakefile.am

@@ -18,6 +18,7 @@ noinst_HEADERS = \
 	include/linux/can/gw.h \
 	include/linux/can.h \
 	include/linux/can/isotp.h \
+	include/linux/can/j1939.h \
 	include/linux/can/netlink.h \
 	include/linux/can/raw.h \
 	include/linux/can/vxcan.h

include/linux/can.h

@@ -157,7 +157,8 @@ struct canfd_frame {
 #define CAN_TP20	4 /* VAG Transport Protocol v2.0 */
 #define CAN_MCNET	5 /* Bosch MCNet */
 #define CAN_ISOTP	6 /* ISO 15765-2 Transport Protocol */
-#define CAN_NPROTO	7
+#define CAN_J1939	7 /* SAE J1939 */
+#define CAN_NPROTO	8
 
 #define SOL_CAN_BASE 100
 
@@ -185,6 +186,23 @@ struct sockaddr_can {
 			canid_t tx_id;
 		} tp;
 
+		/* J1939 address information */
+		struct {
+			/* 8 byte name when using dynamic addressing */
+			__u64 name;
+			/*
+			 * pgn:
+			 * 8bit: PS in PDU2 case, else 0
+			 * 8bit: PF
+			 * 1bit: DP
+			 * 1bit: reserved
+			 */
+			__u32 pgn;
+
+			/* 1byte address */
+			__u8 addr;
+		} j1939;
+
 		/* reserved for future CAN protocols address information */
 	} can_addr;
 };

include/linux/can/j1939.h

@@ -0,0 +1,81 @@
+/*
+ * j1939.h
+ *
+ * Copyright (c) 2010-2011 EIA Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _UAPI_CAN_J1939_H_
+#define _UAPI_CAN_J1939_H_
+
+#include <linux/types.h>
+#include <linux/socket.h>
+#include <linux/can.h>
+
+#define J1939_IDLE_ADDR	0xfe
+#define J1939_NO_ADDR 0xff
+#define J1939_NO_NAME 0
+#define J1939_NO_PGN 0x40000
+
+/* J1939 Parameter Group Number
+ *
+ * bit 0-7	: PDU Specific (PS)
+ * bit 8-15	: PDU Format (PF)
+ * bit 16	: Data Page (DP)
+ * bit 17	: Reserved (R)
+ * bit 19-31	: set to zero
+ */
+typedef __u32 pgn_t;
+
+/* J1939 Priority
+ *
+ * bit 0-2	: Priority (P)
+ * bit 3-7	: set to zero
+ */
+typedef __u8 priority_t;
+
+/* J1939 NAME
+ *
+ * bit 0-20	: Identity Number
+ * bit 21-31	: Manufacturer Code
+ * bit 32-34	: ECU Instance
+ * bit 35-39	: Function Instance
+ * bit 40-47	: Function
+ * bit 48	: Reserved
+ * bit 49-55	: Vehicle System
+ * bit 56-59	: Vehicle System Instance
+ * bit 60-62	: Industry Group
+ * bit 63	: Arbitrary Address Capable
+ */
+typedef __u64 name_t;
+
+/* J1939 socket options */
+#define SOL_CAN_J1939 (SOL_CAN_BASE + CAN_J1939)
+enum {
+	SO_J1939_FILTER = 1,	/* set filters */
+	SO_J1939_PROMISC = 2,	/* set/clr promiscuous mode */
+	SO_J1939_RECV_OWN = 3,
+	SO_J1939_SEND_PRIO = 4,
+};
+
+enum {
+	SCM_J1939_DEST_ADDR = 1,
+	SCM_J1939_DEST_NAME = 2,
+	SCM_J1939_PRIO = 3,
+};
+
+struct j1939_filter {
+	name_t name;
+	name_t name_mask;
+	__u8 addr;
+	__u8 addr_mask;
+	pgn_t pgn;
+	pgn_t pgn_mask;
+};
+
+#define J1939_FILTER_MAX 512 /* maximum number of j1939_filter set via setsockopt() */
+
+#endif /* !_UAPI_CAN_J1939_H_ */