// MESSAGE GLOBAL_POSITION PACKING #define MAVLINK_MSG_ID_GLOBAL_POSITION 33 #define MAVLINK_MSG_ID_GLOBAL_POSITION_LEN 32 #define MAVLINK_MSG_33_LEN 32 typedef struct __mavlink_global_position_t { uint64_t usec; ///< Timestamp (microseconds since unix epoch) float lat; ///< Latitude, in degrees float lon; ///< Longitude, in degrees float alt; ///< Absolute altitude, in meters float vx; ///< X Speed (in Latitude direction, positive: going north) float vy; ///< Y Speed (in Longitude direction, positive: going east) float vz; ///< Z Speed (in Altitude direction, positive: going up) } mavlink_global_position_t; /** * @brief Pack a global_position message * @param system_id ID of this system * @param component_id ID of this component (e.g. 200 for IMU) * @param msg The MAVLink message to compress the data into * * @param usec Timestamp (microseconds since unix epoch) * @param lat Latitude, in degrees * @param lon Longitude, in degrees * @param alt Absolute altitude, in meters * @param vx X Speed (in Latitude direction, positive: going north) * @param vy Y Speed (in Longitude direction, positive: going east) * @param vz Z Speed (in Altitude direction, positive: going up) * @return length of the message in bytes (excluding serial stream start sign) */ static inline uint16_t mavlink_msg_global_position_pack(uint8_t system_id, uint8_t component_id, mavlink_message_t* msg, uint64_t usec, float lat, float lon, float alt, float vx, float vy, float vz) { mavlink_global_position_t *p = (mavlink_global_position_t *)&msg->payload[0]; msg->msgid = MAVLINK_MSG_ID_GLOBAL_POSITION; p->usec = usec; // uint64_t:Timestamp (microseconds since unix epoch) p->lat = lat; // float:Latitude, in degrees p->lon = lon; // float:Longitude, in degrees p->alt = alt; // float:Absolute altitude, in meters p->vx = vx; // float:X Speed (in Latitude direction, positive: going north) p->vy = vy; // float:Y Speed (in Longitude direction, positive: going east) p->vz = vz; // float:Z Speed (in Altitude direction, positive: going up) return mavlink_finalize_message(msg, system_id, component_id, MAVLINK_MSG_ID_GLOBAL_POSITION_LEN); } /** * @brief Pack a global_position message * @param system_id ID of this system * @param component_id ID of this component (e.g. 200 for IMU) * @param chan The MAVLink channel this message was sent over * @param msg The MAVLink message to compress the data into * @param usec Timestamp (microseconds since unix epoch) * @param lat Latitude, in degrees * @param lon Longitude, in degrees * @param alt Absolute altitude, in meters * @param vx X Speed (in Latitude direction, positive: going north) * @param vy Y Speed (in Longitude direction, positive: going east) * @param vz Z Speed (in Altitude direction, positive: going up) * @return length of the message in bytes (excluding serial stream start sign) */ static inline uint16_t mavlink_msg_global_position_pack_chan(uint8_t system_id, uint8_t component_id, uint8_t chan, mavlink_message_t* msg, uint64_t usec, float lat, float lon, float alt, float vx, float vy, float vz) { mavlink_global_position_t *p = (mavlink_global_position_t *)&msg->payload[0]; msg->msgid = MAVLINK_MSG_ID_GLOBAL_POSITION; p->usec = usec; // uint64_t:Timestamp (microseconds since unix epoch) p->lat = lat; // float:Latitude, in degrees p->lon = lon; // float:Longitude, in degrees p->alt = alt; // float:Absolute altitude, in meters p->vx = vx; // float:X Speed (in Latitude direction, positive: going north) p->vy = vy; // float:Y Speed (in Longitude direction, positive: going east) p->vz = vz; // float:Z Speed (in Altitude direction, positive: going up) return mavlink_finalize_message_chan(msg, system_id, component_id, chan, MAVLINK_MSG_ID_GLOBAL_POSITION_LEN); } /** * @brief Encode a global_position struct into a message * * @param system_id ID of this system * @param component_id ID of this component (e.g. 200 for IMU) * @param msg The MAVLink message to compress the data into * @param global_position C-struct to read the message contents from */ static inline uint16_t mavlink_msg_global_position_encode(uint8_t system_id, uint8_t component_id, mavlink_message_t* msg, const mavlink_global_position_t* global_position) { return mavlink_msg_global_position_pack(system_id, component_id, msg, global_position->usec, global_position->lat, global_position->lon, global_position->alt, global_position->vx, global_position->vy, global_position->vz); } /** * @brief Send a global_position message * @param chan MAVLink channel to send the message * * @param usec Timestamp (microseconds since unix epoch) * @param lat Latitude, in degrees * @param lon Longitude, in degrees * @param alt Absolute altitude, in meters * @param vx X Speed (in Latitude direction, positive: going north) * @param vy Y Speed (in Longitude direction, positive: going east) * @param vz Z Speed (in Altitude direction, positive: going up) */ #ifdef MAVLINK_USE_CONVENIENCE_FUNCTIONS static inline void mavlink_msg_global_position_send(mavlink_channel_t chan, uint64_t usec, float lat, float lon, float alt, float vx, float vy, float vz) { mavlink_message_t msg; uint16_t checksum; mavlink_global_position_t *p = (mavlink_global_position_t *)&msg.payload[0]; p->usec = usec; // uint64_t:Timestamp (microseconds since unix epoch) p->lat = lat; // float:Latitude, in degrees p->lon = lon; // float:Longitude, in degrees p->alt = alt; // float:Absolute altitude, in meters p->vx = vx; // float:X Speed (in Latitude direction, positive: going north) p->vy = vy; // float:Y Speed (in Longitude direction, positive: going east) p->vz = vz; // float:Z Speed (in Altitude direction, positive: going up) msg.STX = MAVLINK_STX; msg.len = MAVLINK_MSG_ID_GLOBAL_POSITION_LEN; msg.msgid = MAVLINK_MSG_ID_GLOBAL_POSITION; msg.sysid = mavlink_system.sysid; msg.compid = mavlink_system.compid; msg.seq = mavlink_get_channel_status(chan)->current_tx_seq; mavlink_get_channel_status(chan)->current_tx_seq = msg.seq + 1; checksum = crc_calculate_msg(&msg, msg.len + MAVLINK_CORE_HEADER_LEN); msg.ck_a = (uint8_t)(checksum & 0xFF); ///< Low byte msg.ck_b = (uint8_t)(checksum >> 8); ///< High byte mavlink_send_msg(chan, &msg); } #endif #ifdef MAVLINK_USE_CONVENIENCE_FUNCTIONS_SMALL static inline void mavlink_msg_global_position_send(mavlink_channel_t chan, uint64_t usec, float lat, float lon, float alt, float vx, float vy, float vz) { mavlink_header_t hdr; mavlink_global_position_t payload; uint16_t checksum; mavlink_global_position_t *p = &payload; p->usec = usec; // uint64_t:Timestamp (microseconds since unix epoch) p->lat = lat; // float:Latitude, in degrees p->lon = lon; // float:Longitude, in degrees p->alt = alt; // float:Absolute altitude, in meters p->vx = vx; // float:X Speed (in Latitude direction, positive: going north) p->vy = vy; // float:Y Speed (in Longitude direction, positive: going east) p->vz = vz; // float:Z Speed (in Altitude direction, positive: going up) hdr.STX = MAVLINK_STX; hdr.len = MAVLINK_MSG_ID_GLOBAL_POSITION_LEN; hdr.msgid = MAVLINK_MSG_ID_GLOBAL_POSITION; hdr.sysid = mavlink_system.sysid; hdr.compid = mavlink_system.compid; hdr.seq = mavlink_get_channel_status(chan)->current_tx_seq; mavlink_get_channel_status(chan)->current_tx_seq = hdr.seq + 1; mavlink_send_mem(chan, (uint8_t *)&hdr.STX, MAVLINK_NUM_HEADER_BYTES ); crc_init(&checksum); checksum = crc_calculate_mem((uint8_t *)&hdr.len, &checksum, MAVLINK_CORE_HEADER_LEN); checksum = crc_calculate_mem((uint8_t *)&payload, &checksum, hdr.len ); hdr.ck_a = (uint8_t)(checksum & 0xFF); ///< Low byte hdr.ck_b = (uint8_t)(checksum >> 8); ///< High byte mavlink_send_mem(chan, (uint8_t *)&payload, hdr.len); mavlink_send_mem(chan, (uint8_t *)&hdr.ck_a, MAVLINK_NUM_CHECKSUM_BYTES); } #endif // MESSAGE GLOBAL_POSITION UNPACKING /** * @brief Get field usec from global_position message * * @return Timestamp (microseconds since unix epoch) */ static inline uint64_t mavlink_msg_global_position_get_usec(const mavlink_message_t* msg) { mavlink_global_position_t *p = (mavlink_global_position_t *)&msg->payload[0]; return (uint64_t)(p->usec); } /** * @brief Get field lat from global_position message * * @return Latitude, in degrees */ static inline float mavlink_msg_global_position_get_lat(const mavlink_message_t* msg) { mavlink_global_position_t *p = (mavlink_global_position_t *)&msg->payload[0]; return (float)(p->lat); } /** * @brief Get field lon from global_position message * * @return Longitude, in degrees */ static inline float mavlink_msg_global_position_get_lon(const mavlink_message_t* msg) { mavlink_global_position_t *p = (mavlink_global_position_t *)&msg->payload[0]; return (float)(p->lon); } /** * @brief Get field alt from global_position message * * @return Absolute altitude, in meters */ static inline float mavlink_msg_global_position_get_alt(const mavlink_message_t* msg) { mavlink_global_position_t *p = (mavlink_global_position_t *)&msg->payload[0]; return (float)(p->alt); } /** * @brief Get field vx from global_position message * * @return X Speed (in Latitude direction, positive: going north) */ static inline float mavlink_msg_global_position_get_vx(const mavlink_message_t* msg) { mavlink_global_position_t *p = (mavlink_global_position_t *)&msg->payload[0]; return (float)(p->vx); } /** * @brief Get field vy from global_position message * * @return Y Speed (in Longitude direction, positive: going east) */ static inline float mavlink_msg_global_position_get_vy(const mavlink_message_t* msg) { mavlink_global_position_t *p = (mavlink_global_position_t *)&msg->payload[0]; return (float)(p->vy); } /** * @brief Get field vz from global_position message * * @return Z Speed (in Altitude direction, positive: going up) */ static inline float mavlink_msg_global_position_get_vz(const mavlink_message_t* msg) { mavlink_global_position_t *p = (mavlink_global_position_t *)&msg->payload[0]; return (float)(p->vz); } /** * @brief Decode a global_position message into a struct * * @param msg The message to decode * @param global_position C-struct to decode the message contents into */ static inline void mavlink_msg_global_position_decode(const mavlink_message_t* msg, mavlink_global_position_t* global_position) { memcpy( global_position, msg->payload, sizeof(mavlink_global_position_t)); }