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author | Simon Wilks <sjwilks@gmail.com> | 2013-07-04 08:33:19 +0200 |
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committer | Simon Wilks <sjwilks@gmail.com> | 2013-07-04 08:33:19 +0200 |
commit | 6d2f14e125062be623c710c4b739c46be44d0adf (patch) | |
tree | 0df37208e41f8510429c07ce65f2a52efd0b0205 /src/drivers/hott_telemetry/messages.c | |
parent | dadd8703b422523d88b02effe48e76152bcb2fce (diff) | |
download | px4-firmware-6d2f14e125062be623c710c4b739c46be44d0adf.tar.gz px4-firmware-6d2f14e125062be623c710c4b739c46be44d0adf.tar.bz2 px4-firmware-6d2f14e125062be623c710c4b739c46be44d0adf.zip |
Refactoring of the hott telemetry driver and added functionality to read from a HoTT sensor.
Diffstat (limited to 'src/drivers/hott_telemetry/messages.c')
-rw-r--r-- | src/drivers/hott_telemetry/messages.c | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/src/drivers/hott_telemetry/messages.c b/src/drivers/hott_telemetry/messages.c deleted file mode 100644 index 149c4d367..000000000 --- a/src/drivers/hott_telemetry/messages.c +++ /dev/null @@ -1,268 +0,0 @@ -/**************************************************************************** - * - * Copyright (C) 2012 PX4 Development Team. All rights reserved. - * Author: @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 messages.c - * - */ - -#include "messages.h" - -#include <math.h> -#include <stdio.h> -#include <string.h> -#include <systemlib/geo/geo.h> -#include <unistd.h> -#include <uORB/topics/airspeed.h> -#include <uORB/topics/battery_status.h> -#include <uORB/topics/home_position.h> -#include <uORB/topics/sensor_combined.h> -#include <uORB/topics/vehicle_gps_position.h> - -/* The board is very roughly 5 deg warmer than the surrounding air */ -#define BOARD_TEMP_OFFSET_DEG 5 - -static int battery_sub = -1; -static int gps_sub = -1; -static int home_sub = -1; -static int sensor_sub = -1; -static int airspeed_sub = -1; - -static bool home_position_set = false; -static double home_lat = 0.0d; -static double home_lon = 0.0d; - -void -messages_init(void) -{ - battery_sub = orb_subscribe(ORB_ID(battery_status)); - gps_sub = orb_subscribe(ORB_ID(vehicle_gps_position)); - home_sub = orb_subscribe(ORB_ID(home_position)); - sensor_sub = orb_subscribe(ORB_ID(sensor_combined)); - airspeed_sub = orb_subscribe(ORB_ID(airspeed)); -} - -void -build_esc_request(uint8_t *buffer, size_t *size) -{ - struct esc_module_poll_msg msg; - *size = sizeof(msg); - memset(&msg, 0, *size); - - msg.mode = BINARY_MODE_REQUEST_ID; - msg.id = ESC_SENSOR_ID; - - memcpy(&msg, buffer, size); -} - -void -extract_esc_message(const uint8_t *buffer) -{ - struct esc_module_msg msg; - size_t size = sizeof(msg); - memset(&msg, 0, size); - memcpy(buffer, &msg, size); - - // Publish it. - -} - -void -build_eam_response(uint8_t *buffer, size_t *size) -{ - /* 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); - - struct eam_module_msg msg; - *size = sizeof(msg); - memset(&msg, 0, *size); - - msg.start = START_BYTE; - msg.eam_sensor_id = EAM_SENSOR_ID; - msg.sensor_text_id = EAM_SENSOR_TEXT_ID; - - msg.temperature1 = (uint8_t)(raw.baro_temp_celcius + 20); - msg.temperature2 = msg.temperature1 - BOARD_TEMP_OFFSET_DEG; - - msg.main_voltage_L = (uint8_t)(battery.voltage_v * 10); - - uint16_t alt = (uint16_t)(raw.baro_alt_meter + 500); - msg.altitude_L = (uint8_t)alt & 0xff; - msg.altitude_H = (uint8_t)(alt >> 8) & 0xff; - - /* get a local copy of the airspeed data */ - struct airspeed_s airspeed; - memset(&airspeed, 0, sizeof(airspeed)); - orb_copy(ORB_ID(airspeed), airspeed_sub, &airspeed); - - uint16_t speed = (uint16_t)(airspeed.indicated_airspeed_m_s); - msg.speed_L = (uint8_t)speed & 0xff; - msg.speed_H = (uint8_t)(speed >> 8) & 0xff; - - msg.stop = STOP_BYTE; - memcpy(buffer, &msg, *size); -} - -void -build_gps_response(uint8_t *buffer, size_t *size) -{ - /* 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 vehicle_gps_position_s gps; - memset(&gps, 0, sizeof(gps)); - orb_copy(ORB_ID(vehicle_gps_position), gps_sub, &gps); - - struct gps_module_msg msg = { 0 }; - *size = sizeof(msg); - memset(&msg, 0, *size); - - msg.start = START_BYTE; - msg.sensor_id = GPS_SENSOR_ID; - msg.sensor_text_id = GPS_SENSOR_TEXT_ID; - - msg.gps_num_sat = gps.satellites_visible; - - /* The GPS fix type: 0 = none, 2 = 2D, 3 = 3D */ - msg.gps_fix_char = (uint8_t)(gps.fix_type + 48); - msg.gps_fix = (uint8_t)(gps.fix_type + 48); - - /* No point collecting more data if we don't have a 3D fix yet */ - if (gps.fix_type > 2) { - /* Current flight direction */ - msg.flight_direction = (uint8_t)(gps.cog_rad * M_RAD_TO_DEG_F); - - /* GPS speed */ - uint16_t speed = (uint16_t)(gps.vel_m_s * 3.6); - msg.gps_speed_L = (uint8_t)speed & 0xff; - msg.gps_speed_H = (uint8_t)(speed >> 8) & 0xff; - - /* Get latitude in degrees, minutes and seconds */ - double lat = ((double)(gps.lat))*1e-7d; - - /* Set the N or S specifier */ - msg.latitude_ns = 0; - if (lat < 0) { - msg.latitude_ns = 1; - lat = abs(lat); - } - - int deg; - int min; - int sec; - convert_to_degrees_minutes_seconds(lat, °, &min, &sec); - - uint16_t lat_min = (uint16_t)(deg * 100 + min); - msg.latitude_min_L = (uint8_t)lat_min & 0xff; - msg.latitude_min_H = (uint8_t)(lat_min >> 8) & 0xff; - uint16_t lat_sec = (uint16_t)(sec); - msg.latitude_sec_L = (uint8_t)lat_sec & 0xff; - msg.latitude_sec_H = (uint8_t)(lat_sec >> 8) & 0xff; - - /* Get longitude in degrees, minutes and seconds */ - double lon = ((double)(gps.lon))*1e-7d; - - /* Set the E or W specifier */ - msg.longitude_ew = 0; - if (lon < 0) { - msg.longitude_ew = 1; - lon = abs(lon); - } - - convert_to_degrees_minutes_seconds(lon, °, &min, &sec); - - uint16_t lon_min = (uint16_t)(deg * 100 + min); - msg.longitude_min_L = (uint8_t)lon_min & 0xff; - msg.longitude_min_H = (uint8_t)(lon_min >> 8) & 0xff; - uint16_t lon_sec = (uint16_t)(sec); - msg.longitude_sec_L = (uint8_t)lon_sec & 0xff; - msg.longitude_sec_H = (uint8_t)(lon_sec >> 8) & 0xff; - - /* Altitude */ - uint16_t alt = (uint16_t)(gps.alt*1e-3 + 500.0f); - msg.altitude_L = (uint8_t)alt & 0xff; - msg.altitude_H = (uint8_t)(alt >> 8) & 0xff; - - /* Get any (and probably only ever one) home_sub postion report */ - bool updated; - orb_check(home_sub, &updated); - if (updated) { - /* get a local copy of the home position data */ - struct home_position_s home; - memset(&home, 0, sizeof(home)); - orb_copy(ORB_ID(home_position), home_sub, &home); - - home_lat = ((double)(home.lat))*1e-7d; - home_lon = ((double)(home.lon))*1e-7d; - home_position_set = true; - } - - /* Distance from home */ - if (home_position_set) { - uint16_t dist = (uint16_t)get_distance_to_next_waypoint(home_lat, home_lon, lat, lon); - - msg.distance_L = (uint8_t)dist & 0xff; - msg.distance_H = (uint8_t)(dist >> 8) & 0xff; - - /* Direction back to home */ - uint16_t bearing = (uint16_t)(get_bearing_to_next_waypoint(home_lat, home_lon, lat, lon) * M_RAD_TO_DEG_F); - msg.home_direction = (uint8_t)bearing >> 1; - } - } - - msg.stop = STOP_BYTE; - memcpy(buffer, &msg, *size); -} - -void -convert_to_degrees_minutes_seconds(double val, int *deg, int *min, int *sec) -{ - *deg = (int)val; - - double delta = val - *deg; - const double min_d = delta * 60.0d; - *min = (int)min_d; - delta = min_d - *min; - *sec = (int)(delta * 10000.0d); -} |