Add FrSky telemetry application.

This daemon emulates an FrSky sensor hub by periodically sending data packets to an attached FrSky receiver.

4 files changed, 617 insertions, 0 deletions

diff --git a/src/drivers/frsky_telemetry/frsky_data.c b/src/drivers/frsky_telemetry/frsky_data.c
new file mode 100644
index 000000000..8a57070b1
--- /dev/null
+++ b/src/drivers/frsky_telemetry/frsky_data.c
@@ -0,0 +1,223 @@
+/****************************************************************************
+ *
+ *   Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved.
+ *   Author: Simon Wilks <sjwilks@gmail.com>
+ *
+ * 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 frsky_data.c
+ * @author Stefan Rado <px4@sradonia.net>
+ *
+ * FrSky telemetry implementation.
+ *
+ */
+
+#include "frsky_data.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <arch/math.h>
+#include <geo/geo.h>
+
+#include <uORB/topics/battery_status.h>
+#include <uORB/topics/sensor_combined.h>
+#include <uORB/topics/vehicle_global_position.h>
+
+
+static int battery_sub = -1;
+static int sensor_sub = -1;
+static int global_position_sub = -1;
+
+
+/**
+ * Initializes the uORB subscriptions.
+ */
+void frsky_init()
+{
+	battery_sub = orb_subscribe(ORB_ID(battery_status));
+	global_position_sub = orb_subscribe(ORB_ID(vehicle_global_position));
+	sensor_sub = orb_subscribe(ORB_ID(sensor_combined));
+}
+
+/**
+ * Sends a 0x5E start/stop byte.
+ */
+static void
+frsky_send_startstop(int uart)
+{
+	static const uint8_t c = 0x5E;
+	write(uart, &c, sizeof(c));
+}
+
+/**
+ * Sends one byte, performing byte-stuffing if necessary.
+ */
+static void
+frsky_send_byte(int uart, uint8_t value)
+{
+	const uint8_t x5E[] = {0x5D, 0x3E};
+	const uint8_t x5D[] = {0x5D, 0x3D};
+
+	switch (value)
+	{
+	case 0x5E:
+		write(uart, x5E, sizeof(x5E));
+		break;
+
+	case 0x5D:
+		write(uart, x5D, sizeof(x5D));
+		break;
+
+	default:
+		write(uart, &value, sizeof(value));
+		break;
+	}
+}
+
+/**
+ * Sends one data id/value pair.
+ */
+static void
+frsky_send_data(int uart, uint8_t id, uint16_t data)
+{
+	frsky_send_startstop(uart);
+
+	frsky_send_byte(uart, id);
+	frsky_send_byte(uart, data);      /* Low */
+	frsky_send_byte(uart, data >> 8); /* High */
+}
+
+/**
+ * Sends frame 1 (every 200ms):
+ *   acceleration values, altitude (vario), temperatures, current & voltages, RPM
+ */
+void frsky_send_frame1(int uart)
+{
+	/* get a local copy of the current sensor values */
+	struct sensor_combined_s raw;
+	memset(&raw, 0, sizeof(raw));
+	orb_copy(ORB_ID(sensor_combined), sensor_sub, &raw);
+
+	/* get a local copy of the battery data */
+	struct battery_status_s battery;
+	memset(&battery, 0, sizeof(battery));
+	orb_copy(ORB_ID(battery_status), battery_sub, &battery);
+
+	/* send formatted frame */
+	// TODO
+	frsky_send_data(uart, FRSKY_ID_ACCEL_X, raw.accelerometer_m_s2[0] * 100);
+	frsky_send_data(uart, FRSKY_ID_ACCEL_Y, raw.accelerometer_m_s2[1] * 100);
+	frsky_send_data(uart, FRSKY_ID_ACCEL_Z, raw.accelerometer_m_s2[2] * 100);
+
+	frsky_send_data(uart, FRSKY_ID_BARO_ALT_BP, raw.baro_alt_meter);
+	frsky_send_data(uart, FRSKY_ID_BARO_ALT_AP, (raw.baro_alt_meter - (int)raw.baro_alt_meter) * 1000.0f);
+
+	frsky_send_data(uart, FRSKY_ID_TEMP1, raw.baro_temp_celcius);
+	frsky_send_data(uart, FRSKY_ID_TEMP2, 0);
+
+	frsky_send_data(uart, FRSKY_ID_VOLTS, 0); /* cell voltage. 4 bits cell number, 12 bits voltage in 0.2V steps, scale 0-4.2V */
+	frsky_send_data(uart, FRSKY_ID_CURRENT, battery.current_a);
+
+	frsky_send_data(uart, FRSKY_ID_VOLTS_BP, battery.voltage_v);
+	frsky_send_data(uart, FRSKY_ID_VOLTS_AP, (battery.voltage_v - (int)battery.voltage_v) * 1000.0f);
+
+	frsky_send_data(uart, FRSKY_ID_RPM, 0);
+
+	frsky_send_startstop(uart);
+}
+
+/**
+ * Sends frame 2 (every 1000ms):
+ *   course, latitude, longitude, speed, altitude (GPS), fuel level
+ */
+void frsky_send_frame2(int uart)
+{
+ 	/* get a local copy of the battery data */
+	struct vehicle_global_position_s global_pos;
+	memset(&global_pos, 0, sizeof(global_pos));
+	orb_copy(ORB_ID(vehicle_global_position), global_position_sub, &global_pos);
+
+	/* send formatted frame */
+	// TODO
+	float course = 0, lat = 0, lon = 0, speed = 0, alt = 0, sec = 0;
+	if (global_pos.valid)
+	{
+		course = (global_pos.yaw + M_PI_F) / M_PI_F * 180.0f;
+		// TODO: latitude, longitude
+		speed = sqrtf(global_pos.vx * global_pos.vx + global_pos.vy * global_pos.vy);
+		alt = global_pos.alt;
+	}
+
+	frsky_send_data(uart, FRSKY_ID_GPS_COURS_BP, course);
+	frsky_send_data(uart, FRSKY_ID_GPS_COURS_AP, (course - (int)course) * 100.0f);
+
+	frsky_send_data(uart, FRSKY_ID_GPS_LAT_BP, 0);
+	frsky_send_data(uart, FRSKY_ID_GPS_LAT_AP, 0);
+	frsky_send_data(uart, FRSKY_ID_GPS_LAT_NS, 0);
+
+	frsky_send_data(uart, FRSKY_ID_GPS_LONG_BP, 0);
+	frsky_send_data(uart, FRSKY_ID_GPS_LONG_AP, 0);
+	frsky_send_data(uart, FRSKY_ID_GPS_LONG_EW, 0);
+
+	frsky_send_data(uart, FRSKY_ID_GPS_SPEED_BP, speed);
+	frsky_send_data(uart, FRSKY_ID_GPS_SPEED_AP, (speed - (int)speed) * 100.0f);
+
+	frsky_send_data(uart, FRSKY_ID_GPS_ALT_BP, alt);
+	frsky_send_data(uart, FRSKY_ID_GPS_ALT_AP, (alt - (int)alt) * 100.0f);
+
+	frsky_send_data(uart, FRSKY_ID_FUEL, 0);
+
+	frsky_send_data(uart, FRSKY_ID_GPS_SEC, 0);
+
+	frsky_send_startstop(uart);
+}
+
+/**
+ * Sends frame 3 (every 5000ms):
+ *   date, time
+ */
+void frsky_send_frame3(int uart)
+{
+ 	/* get a local copy of the battery data */
+	struct vehicle_global_position_s global_pos;
+	memset(&global_pos, 0, sizeof(global_pos));
+	orb_copy(ORB_ID(vehicle_global_position), global_position_sub, &global_pos);
+
+	/* send formatted frame */
+	// TODO
+	frsky_send_data(uart, FRSKY_ID_GPS_DAY_MONTH, 0);
+	frsky_send_data(uart, FRSKY_ID_GPS_YEAR, 0);
+	frsky_send_data(uart, FRSKY_ID_GPS_HOUR_MIN, 0);
+	frsky_send_data(uart, FRSKY_ID_GPS_SEC, 0);
+
+	frsky_send_startstop(uart);
+}
diff --git a/src/drivers/frsky_telemetry/frsky_data.h b/src/drivers/frsky_telemetry/frsky_data.h
new file mode 100644
index 000000000..e0c39a42b
--- /dev/null
+++ b/src/drivers/frsky_telemetry/frsky_data.h
@@ -0,0 +1,84 @@
+/****************************************************************************
+ *
+ *   Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved.
+ *   Author: Simon Wilks <sjwilks@gmail.com>
+ *
+ * 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 frsky_data.h
+ * @author Stefan Rado <px4@sradonia.net>
+ *
+ * FrSky telemetry implementation.
+ *
+ */
+#ifndef _FRSKY_DATA_H
+#define _FRSKY_DATA_H
+
+// FrSky sensor hub data IDs
+#define FRSKY_ID_GPS_ALT_BP     0x01
+#define FRSKY_ID_TEMP1          0x02
+#define FRSKY_ID_RPM            0x03
+#define FRSKY_ID_FUEL           0x04
+#define FRSKY_ID_TEMP2          0x05
+#define FRSKY_ID_VOLTS          0x06
+#define FRSKY_ID_GPS_ALT_AP     0x09
+#define FRSKY_ID_BARO_ALT_BP    0x10
+#define FRSKY_ID_GPS_SPEED_BP   0x11
+#define FRSKY_ID_GPS_LONG_BP    0x12
+#define FRSKY_ID_GPS_LAT_BP     0x13
+#define FRSKY_ID_GPS_COURS_BP   0x14
+#define FRSKY_ID_GPS_DAY_MONTH  0x15
+#define FRSKY_ID_GPS_YEAR       0x16
+#define FRSKY_ID_GPS_HOUR_MIN   0x17
+#define FRSKY_ID_GPS_SEC        0x18
+#define FRSKY_ID_GPS_SPEED_AP   0x19
+#define FRSKY_ID_GPS_LONG_AP    0x1A
+#define FRSKY_ID_GPS_LAT_AP     0x1B
+#define FRSKY_ID_GPS_COURS_AP   0x1C
+#define FRSKY_ID_BARO_ALT_AP    0x21
+#define FRSKY_ID_GPS_LONG_EW    0x22
+#define FRSKY_ID_GPS_LAT_NS     0x23
+#define FRSKY_ID_ACCEL_X        0x24
+#define FRSKY_ID_ACCEL_Y        0x25
+#define FRSKY_ID_ACCEL_Z        0x26
+#define FRSKY_ID_CURRENT        0x28
+#define FRSKY_ID_VARIO          0x30
+#define FRSKY_ID_VFAS           0x39
+#define FRSKY_ID_VOLTS_BP       0x3A
+#define FRSKY_ID_VOLTS_AP       0x3B
+
+// Public functions
+void frsky_init(void);
+void frsky_send_frame1(int uart);
+void frsky_send_frame2(int uart);
+void frsky_send_frame3(int uart);
+
+#endif /* _FRSKY_TELEMETRY_H */
diff --git a/src/drivers/frsky_telemetry/frsky_telemetry.c b/src/drivers/frsky_telemetry/frsky_telemetry.c
new file mode 100644
index 000000000..5f3837b6e
--- /dev/null
+++ b/src/drivers/frsky_telemetry/frsky_telemetry.c
@@ -0,0 +1,269 @@
+/****************************************************************************
+ *
+ *   Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved.
+ *   Author: Simon Wilks <sjwilks@gmail.com>
+ *
+ * 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 frsky_telemetry.c
+ * @author Stefan Rado <px4@sradonia.net>
+ *
+ * FrSky telemetry implementation.
+ *
+ * This daemon emulates an FrSky sensor hub by periodically sending data
+ * packets to an attached FrSky receiver.
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <systemlib/err.h>
+#include <systemlib/systemlib.h>
+#include <termios.h>
+
+#include "frsky_data.h"
+
+
+/* thread state */
+static volatile bool thread_should_exit = false;
+static volatile bool thread_running = false;
+static int frsky_task;
+
+/* functions */
+static int frsky_open_uart(const char *uart_name, struct termios *uart_config_original);
+static void usage(void);
+static int frsky_telemetry_thread_main(int argc, char *argv[]);
+__EXPORT int frsky_telemetry_main(int argc, char *argv[]);
+
+
+/**
+ * Opens the UART device and sets all required serial parameters.
+ */
+static int
+frsky_open_uart(const char *uart_name, struct termios *uart_config_original)
+{
+	/* Open UART */
+	const int uart = open(uart_name, O_WRONLY | O_NOCTTY);
+
+	if (uart < 0) {
+		err(1, "Error opening port: %s", uart_name);
+	}
+
+	/* Back up the original UART configuration to restore it after exit */
+	int termios_state;
+	if ((termios_state = tcgetattr(uart, uart_config_original)) < 0) {
+		warnx("ERROR get termios config %s: %d\n", uart_name, termios_state);
+		close(uart);
+		return -1;
+	}
+
+	/* Fill the struct for the new configuration */
+	struct termios uart_config;
+	tcgetattr(uart, &uart_config);
+
+	/* Disable output post-processing */
+	uart_config.c_oflag &= ~OPOST;
+
+	/* Set baud rate */
+	static const speed_t speed = B9600;
+
+	if (cfsetispeed(&uart_config, speed) < 0 || cfsetospeed(&uart_config, speed) < 0) {
+		warnx("ERROR setting baudrate / termios config for %s: %d (cfsetispeed, cfsetospeed)\n", uart_name, termios_state);
+		close(uart);
+		return -1;
+	}
+
+	if ((termios_state = tcsetattr(uart, TCSANOW, &uart_config)) < 0) {
+		warnx("ERROR setting baudrate / termios config for %s (tcsetattr)\n", uart_name);
+		close(uart);
+		return -1;
+	}
+
+	return uart;
+}
+
+/**
+ * Print command usage information
+ */
+static void
+usage()
+{
+	fprintf(stderr, "usage: frsky_telemetry start [-d <devicename>]\n"
+		"       frsky_telemetry stop\n"
+		"       frsky_telemetry status\n");
+	exit(1);
+}
+
+/**
+ * The daemon thread.
+ */
+static int
+frsky_telemetry_thread_main(int argc, char *argv[])
+{
+	/* Default values for arguments */
+	char *device_name = "/dev/ttyS1"; /* USART2 */
+
+	/* Work around some stupidity in task_create's argv handling */
+	argc -= 2;
+	argv += 2;
+
+	int ch;
+	while ((ch = getopt(argc, argv, "d:")) != EOF) {
+		switch (ch) {
+		case 'd':
+			device_name = optarg;
+			break;
+
+		default:
+			usage();
+			break;
+		}
+	}
+
+	/* Print welcome text */
+	warnx("FrSky telemetry interface starting...");
+
+	/* Open UART */
+	struct termios uart_config_original;
+	const int uart = frsky_open_uart(device_name, &uart_config_original);
+
+	if (uart < 0)
+		err(1, "could not open %s", device_name);
+
+	/* Subscribe to topics */
+	frsky_init();
+
+	thread_running = true;
+
+	/* Main thread loop */
+	unsigned int iteration = 0;
+	while (!thread_should_exit) {
+
+		/* Sleep 200 ms */
+		usleep(200000);
+
+		/* Send frame 1 (every 200ms): acceleration values, altitude (vario), temperatures, current & voltages, RPM */
+		frsky_send_frame1(uart);
+
+		/* Send frame 2 (every 1000ms): course, latitude, longitude, speed, altitude (GPS), fuel level */
+		if (iteration % 5 == 0)
+		{
+			frsky_send_frame2(uart);
+		}
+
+		/* Send frame 3 (every 5000ms): date, time */
+		if (iteration % 25 == 0)
+		{
+			frsky_send_frame3(uart);
+
+			iteration = 0;
+		}
+
+		iteration++;
+	}
+
+	/* Reset the UART flags to original state */
+	tcsetattr(uart, TCSANOW, &uart_config_original);
+	close(uart);
+
+	thread_running = false;
+	return 0;
+}
+
+/**
+ * The main command function.
+ * Processes command line arguments and starts the daemon.
+ */
+int
+frsky_telemetry_main(int argc, char *argv[])
+{
+	if (argc < 2) {
+		warnx("missing command");
+		usage();
+	}
+
+	if (!strcmp(argv[1], "start")) {
+
+		/* this is not an error */
+		if (thread_running)
+			errx(0, "frsky_telemetry already running");
+
+		thread_should_exit = false;
+		frsky_task = task_spawn_cmd("frsky_telemetry",
+					  SCHED_DEFAULT,
+					  SCHED_PRIORITY_DEFAULT,
+					  2048,
+					  frsky_telemetry_thread_main,
+					  (const char **)argv);
+
+		while (!thread_running) {
+			usleep(200);
+		}
+
+		exit(0);
+	}
+
+	if (!strcmp(argv[1], "stop")) {
+
+		/* this is not an error */
+		if (!thread_running)
+			errx(0, "frsky_telemetry already stopped");
+
+		thread_should_exit = true;
+
+		while (thread_running) {
+			usleep(200000);
+			warnx(".");
+		}
+
+		warnx("terminated.");
+		exit(0);
+	}
+
+	if (!strcmp(argv[1], "status")) {
+		if (thread_running) {
+			errx(0, "running");
+
+		} else {
+			errx(1, "not running");
+		}
+	}
+
+	warnx("unrecognized command");
+	usage();
+	/* not getting here */
+	return 0;
+}
diff --git a/src/drivers/frsky_telemetry/module.mk b/src/drivers/frsky_telemetry/module.mk
new file mode 100644
index 000000000..808966691
--- /dev/null
+++ b/src/drivers/frsky_telemetry/module.mk
@@ -0,0 +1,41 @@
+############################################################################
+#
+#   Copyright (c) 2012, 2013 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.
+#
+############################################################################
+
+#
+# FrSky telemetry application.
+#
+
+MODULE_COMMAND	= frsky_telemetry
+
+SRCS		= frsky_data.c \
+              frsky_telemetry.c