Change can_message_t class usage for new j1939

This commit transforms the class can_message_t as the base class
and creates two derived classes: j1939_message_t and can_message_t.

Bug-AGL: SPEC-2386

Change-Id: I6d3afd8e4f5abff2cd0ec4e9910bd52a2893de76
Signed-off-by: Arthur Guyader <arthur.guyader@iot.bzh>
Signed-off-by: Stephane Desneux <stephane.desneux@iot.bzh>
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

1 files changed, 73 insertions, 0 deletions

diff --git a/low-can-binding/can/message/j1939-message.hpp b/low-can-binding/can/message/j1939-message.hpp
new file mode 100644
index 00000000..74b625e0
--- /dev/null
+++ b/low-can-binding/can/message/j1939-message.hpp
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2018, 2019 "IoT.bzh"
+ * Author "Arthur Guyader" <arthur.guyader@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *	 http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+#include <linux/can.h>
+#include <linux/can/j1939.h>
+#include "./message.hpp"
+
+#define J1939_MAX_MULTIPACKETS 255
+#define J1939_MAX_DLEN J1939_MAX_MULTIPACKETS * CAN_MAX_DLEN
+
+class j1939_message_t : public message_t
+{
+    private:
+        /* 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
+        */
+        name_t name_;
+
+        /* 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
+        */
+        pgn_t pgn_;
+
+
+        /* J1939 Address
+         */
+        uint8_t addr_;
+
+    public:
+        j1939_message_t();
+        j1939_message_t(uint8_t length, can_message_format_t format, std::vector<uint8_t>& data, uint64_t timestamp, name_t name, pgn_t pgn, uint8_t addr);
+        uint64_t get_name() const;
+        uint32_t get_pgn() const;
+        uint8_t get_addr() const;
+        static std::shared_ptr<j1939_message_t> convert_from_addr(struct sockaddr_can& addr, uint8_t (&data)[128], size_t nbytes, uint64_t timestamp);
+        bool is_set();
+        std::string get_debug_message();
+        uint32_t get_id() const;
+        struct bcm_msg get_bcm_msg();
+		void set_bcm_msg(struct bcm_msg bcm_msg);
+};
+
+