diff --git a/src/drivers/frsky_telemetry/frsky_data.c b/src/drivers/frsky_telemetry/frsky_data.c index 8a57070b17..3a0c4b4b3b 100644 --- a/src/drivers/frsky_telemetry/frsky_data.c +++ b/src/drivers/frsky_telemetry/frsky_data.c @@ -51,11 +51,52 @@ #include #include #include +#include + + +// 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 + + +#define frac(f) (f - (int)f) + +float frsky_format_gps(float dec); static int battery_sub = -1; static int sensor_sub = -1; static int global_position_sub = -1; +static int vehicle_status_sub = -1; /** @@ -66,6 +107,7 @@ 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)); + vehicle_status_sub = orb_subscribe(ORB_ID(vehicle_status)); } /** @@ -107,13 +149,16 @@ frsky_send_byte(int uart, uint8_t value) * Sends one data id/value pair. */ static void -frsky_send_data(int uart, uint8_t id, uint16_t data) +frsky_send_data(int uart, uint8_t id, int16_t data) { + // Cast data to unsigned, because signed shift might behave incorrectly + uint16_t udata = data; + frsky_send_startstop(uart); frsky_send_byte(uart, id); - frsky_send_byte(uart, data); /* Low */ - frsky_send_byte(uart, data >> 8); /* High */ + frsky_send_byte(uart, udata); /* LSB */ + frsky_send_byte(uart, udata >> 8); /* MSB */ } /** @@ -133,70 +178,96 @@ void frsky_send_frame1(int uart) 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_ACCEL_X, raw.accelerometer_m_s2[0] * 1000.0f); + frsky_send_data(uart, FRSKY_ID_ACCEL_Y, raw.accelerometer_m_s2[1] * 1000.0f); + frsky_send_data(uart, FRSKY_ID_ACCEL_Z, raw.accelerometer_m_s2[2] * 1000.0f); 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_BARO_ALT_AP, frac(raw.baro_alt_meter) * 1000.0f); - frsky_send_data(uart, FRSKY_ID_TEMP1, raw.baro_temp_celcius); + frsky_send_data(uart, FRSKY_ID_TEMP1, raw.baro_temp_celcius * 10.0f); 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); + float voltage = battery.voltage_v * 11.0f / 21.0f; + frsky_send_data(uart, FRSKY_ID_VOLTS_BP, voltage); + frsky_send_data(uart, FRSKY_ID_VOLTS_AP, frac(voltage) * 10.0f); frsky_send_data(uart, FRSKY_ID_RPM, 0); frsky_send_startstop(uart); } +/** + * Formats the decimal latitude/longitude to the required degrees/minutes/seconds. + */ +float frsky_format_gps(float dec) +{ + float dms_deg = (int)dec; + float dec_deg = dec - dms_deg; + float dms_min = (int)(dec_deg * 60); + float dec_min = (dec_deg * 60) - dms_min; + float dms_sec = dec_min * 60; + + return (dms_deg * 100.0f) + dms_min + (dms_sec / 100.0f); +} + /** * 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 */ + /* get a local copy of the global position 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); + /* get a local copy of the vehicle status data */ + struct vehicle_status_s vehicle_status; + memset(&vehicle_status, 0, sizeof(vehicle_status)); + orb_copy(ORB_ID(vehicle_status), vehicle_status_sub, &vehicle_status); + /* send formatted frame */ - // TODO float course = 0, lat = 0, lon = 0, speed = 0, alt = 0, sec = 0; + char lat_ns = 0, lon_ew = 0; if (global_pos.valid) { + time_t time_gps = global_pos.time_gps_usec / 1000000; + struct tm *tm_gps = gmtime(&time_gps); + 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; + lat = frsky_format_gps(abs(global_pos.lat) / 10000000.0f); + lat_ns = (global_pos.lat < 0) ? 'S' : 'N'; + lon = frsky_format_gps(abs(global_pos.lon) / 10000000.0f); + lon_ew = (global_pos.lon < 0) ? 'W' : 'E'; + speed = sqrtf(global_pos.vx * global_pos.vx + global_pos.vy * global_pos.vy) * 25.0f / 46.0f; + alt = global_pos.alt; + sec = tm_gps->tm_sec; } 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_COURS_AP, frac(course) * 1000.0f); - 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_LAT_BP, lat); + frsky_send_data(uart, FRSKY_ID_GPS_LAT_AP, frac(lat) * 10000.0f); + frsky_send_data(uart, FRSKY_ID_GPS_LAT_NS, lat_ns); - 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_LONG_BP, lon); + frsky_send_data(uart, FRSKY_ID_GPS_LONG_AP, frac(lon) * 10000.0f); + frsky_send_data(uart, FRSKY_ID_GPS_LONG_EW, lon_ew); 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_SPEED_AP, frac(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_GPS_ALT_AP, frac(alt) * 100.0f); - frsky_send_data(uart, FRSKY_ID_FUEL, 0); + frsky_send_data(uart, FRSKY_ID_FUEL, vehicle_status.battery_remaining); - frsky_send_data(uart, FRSKY_ID_GPS_SEC, 0); + frsky_send_data(uart, FRSKY_ID_GPS_SEC, sec); frsky_send_startstop(uart); } @@ -213,11 +284,13 @@ void frsky_send_frame3(int uart) 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); + time_t time_gps = global_pos.time_gps_usec / 1000000; + struct tm *tm_gps = gmtime(&time_gps); + uint16_t hour_min = (tm_gps->tm_min << 8) | (tm_gps->tm_hour & 0xff); + frsky_send_data(uart, FRSKY_ID_GPS_DAY_MONTH, tm_gps->tm_mday); + frsky_send_data(uart, FRSKY_ID_GPS_YEAR, tm_gps->tm_year); + frsky_send_data(uart, FRSKY_ID_GPS_HOUR_MIN, hour_min); + frsky_send_data(uart, FRSKY_ID_GPS_SEC, tm_gps->tm_sec); frsky_send_startstop(uart); } diff --git a/src/drivers/frsky_telemetry/frsky_data.h b/src/drivers/frsky_telemetry/frsky_data.h index e0c39a42bd..cea93ef2b9 100644 --- a/src/drivers/frsky_telemetry/frsky_data.h +++ b/src/drivers/frsky_telemetry/frsky_data.h @@ -42,39 +42,6 @@ #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);