mavlink: commands stream implemented

4 files changed, 146 insertions, 1 deletions

diff --git a/src/modules/mavlink/mavlink_commands.cpp b/src/modules/mavlink/mavlink_commands.cpp
new file mode 100644
index 000000000..1c1e097a4
--- /dev/null
+++ b/src/modules/mavlink/mavlink_commands.cpp
@@ -0,0 +1,73 @@
+/****************************************************************************
+ *
+ *   Copyright (c) 2014 PX4 Development Team. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name PX4 nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/**
+ * @file mavlink_commands.cpp
+ * Mavlink commands stream implementation.
+ *
+ * @author Anton Babushkin <anton.babushkin@me.com>
+ */
+
+#include "mavlink_commands.h"
+
+MavlinkCommandsStream::MavlinkCommandsStream(Mavlink *mavlink, mavlink_channel_t channel) : _channel(channel)
+{
+	_cmd_sub = mavlink->add_orb_subscription(ORB_ID(vehicle_command));
+	_cmd = (struct vehicle_command_s *)_cmd_sub->get_data();
+}
+
+MavlinkCommandsStream::~MavlinkCommandsStream()
+{
+}
+
+void
+MavlinkCommandsStream::update(const hrt_abstime t)
+{
+	if (_cmd_sub->update(t)) {
+		/* only send commands for other systems/components */
+		if (_cmd->target_system != mavlink_system.sysid || _cmd->target_component != mavlink_system.compid) {
+			mavlink_msg_command_long_send(_channel,
+						      _cmd->target_system,
+						      _cmd->target_component,
+						      _cmd->command,
+						      _cmd->confirmation,
+						      _cmd->param1,
+						      _cmd->param2,
+						      _cmd->param3,
+						      _cmd->param4,
+						      _cmd->param5,
+						      _cmd->param6,
+						      _cmd->param7);
+		}
+	}
+}
diff --git a/src/modules/mavlink/mavlink_commands.h b/src/modules/mavlink/mavlink_commands.h
new file mode 100644
index 000000000..6255d65df
--- /dev/null
+++ b/src/modules/mavlink/mavlink_commands.h
@@ -0,0 +1,65 @@
+/****************************************************************************
+ *
+ *   Copyright (c) 2014 PX4 Development Team. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name PX4 nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/**
+ * @file mavlink_commands.h
+ * Mavlink commands stream definition.
+ *
+ * @author Anton Babushkin <anton.babushkin@me.com>
+ */
+
+#ifndef MAVLINK_COMMANDS_H_
+#define MAVLINK_COMMANDS_H_
+
+#include <uORB/uORB.h>
+#include <uORB/topics/vehicle_command.h>
+
+class Mavlink;
+class MavlinkCommansStream;
+
+#include "mavlink_main.h"
+
+class MavlinkCommandsStream
+{
+private:
+	MavlinkOrbSubscription *_cmd_sub;
+	struct vehicle_command_s *_cmd;
+	mavlink_channel_t _channel;
+
+public:
+	MavlinkCommandsStream(Mavlink *mavlink, mavlink_channel_t channel);
+	~MavlinkCommandsStream();
+	void update(const hrt_abstime t);
+};
+
+#endif /* MAVLINK_COMMANDS_H_ */
diff --git a/src/modules/mavlink/mavlink_main.cpp b/src/modules/mavlink/mavlink_main.cpp
index 3d897431a..1ed3f4001 100644
--- a/src/modules/mavlink/mavlink_main.cpp
+++ b/src/modules/mavlink/mavlink_main.cpp
@@ -81,6 +81,7 @@
 #include "mavlink_messages.h"
 #include "mavlink_receiver.h"
 #include "mavlink_rate_limiter.h"
+#include "mavlink_commands.h"
 
 /* oddly, ERROR is not defined for c++ */
 #ifdef ERROR
@@ -1920,6 +1921,8 @@ Mavlink::task_main(int argc, char *argv[])
 
 	struct vehicle_status_s *status = (struct vehicle_status_s *) status_sub->get_data();
 
+	MavlinkCommandsStream commands_stream(this, _channel);
+
 	/* add default streams depending on mode and intervals depending on datarate */
 	float rate_mult = _datarate / 1000.0f;
 
@@ -1982,6 +1985,9 @@ Mavlink::task_main(int argc, char *argv[])
 			set_hil_enabled(status->hil_state == HIL_STATE_ON);
 		}
 
+		/* update commands stream */
+		commands_stream.update(t);
+
 		/* check for requested subscriptions */
 		if (_subscribe_to_stream != nullptr) {
 			if (OK == configure_stream(_subscribe_to_stream, _subscribe_to_stream_rate)) {
diff --git a/src/modules/mavlink/module.mk b/src/modules/mavlink/module.mk
index f09efa2e6..515fbfadc 100644
--- a/src/modules/mavlink/module.mk
+++ b/src/modules/mavlink/module.mk
@@ -42,6 +42,7 @@ SRCS		 += mavlink_main.cpp \
 			mavlink_orb_subscription.cpp \
 			mavlink_messages.cpp \
 			mavlink_stream.cpp \
-			mavlink_rate_limiter.cpp
+			mavlink_rate_limiter.cpp \
+			mavlink_commands.cpp
 
 INCLUDE_DIRS	 += $(MAVLINK_SRC)/include/mavlink