// MESSAGE COMMAND PACKING #define MAVLINK_MSG_ID_COMMAND 75 #define MAVLINK_MSG_ID_COMMAND_LEN 20 #define MAVLINK_MSG_75_LEN 20 typedef struct __mavlink_command_t { float param1; ///< Parameter 1, as defined by MAV_CMD enum. float param2; ///< Parameter 2, as defined by MAV_CMD enum. float param3; ///< Parameter 3, as defined by MAV_CMD enum. float param4; ///< Parameter 4, as defined by MAV_CMD enum. uint8_t target_system; ///< System which should execute the command uint8_t target_component; ///< Component which should execute the command, 0 for all components uint8_t command; ///< Command ID, as defined by MAV_CMD enum. uint8_t confirmation; ///< 0: First transmission of this command. 1-255: Confirmation transmissions (e.g. for kill command) } mavlink_command_t; /** * @brief Pack a command 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 target_system System which should execute the command * @param target_component Component which should execute the command, 0 for all components * @param command Command ID, as defined by MAV_CMD enum. * @param confirmation 0: First transmission of this command. 1-255: Confirmation transmissions (e.g. for kill command) * @param param1 Parameter 1, as defined by MAV_CMD enum. * @param param2 Parameter 2, as defined by MAV_CMD enum. * @param param3 Parameter 3, as defined by MAV_CMD enum. * @param param4 Parameter 4, as defined by MAV_CMD enum. * @return length of the message in bytes (excluding serial stream start sign) */ static inline uint16_t mavlink_msg_command_pack(uint8_t system_id, uint8_t component_id, mavlink_message_t* msg, uint8_t target_system, uint8_t target_component, uint8_t command, uint8_t confirmation, float param1, float param2, float param3, float param4) { mavlink_command_t *p = (mavlink_command_t *)&msg->payload[0]; msg->msgid = MAVLINK_MSG_ID_COMMAND; p->target_system = target_system; // uint8_t:System which should execute the command p->target_component = target_component; // uint8_t:Component which should execute the command, 0 for all components p->command = command; // uint8_t:Command ID, as defined by MAV_CMD enum. p->confirmation = confirmation; // uint8_t:0: First transmission of this command. 1-255: Confirmation transmissions (e.g. for kill command) p->param1 = param1; // float:Parameter 1, as defined by MAV_CMD enum. p->param2 = param2; // float:Parameter 2, as defined by MAV_CMD enum. p->param3 = param3; // float:Parameter 3, as defined by MAV_CMD enum. p->param4 = param4; // float:Parameter 4, as defined by MAV_CMD enum. return mavlink_finalize_message(msg, system_id, component_id, MAVLINK_MSG_ID_COMMAND_LEN); } /** * @brief Pack a command 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 target_system System which should execute the command * @param target_component Component which should execute the command, 0 for all components * @param command Command ID, as defined by MAV_CMD enum. * @param confirmation 0: First transmission of this command. 1-255: Confirmation transmissions (e.g. for kill command) * @param param1 Parameter 1, as defined by MAV_CMD enum. * @param param2 Parameter 2, as defined by MAV_CMD enum. * @param param3 Parameter 3, as defined by MAV_CMD enum. * @param param4 Parameter 4, as defined by MAV_CMD enum. * @return length of the message in bytes (excluding serial stream start sign) */ static inline uint16_t mavlink_msg_command_pack_chan(uint8_t system_id, uint8_t component_id, uint8_t chan, mavlink_message_t* msg, uint8_t target_system, uint8_t target_component, uint8_t command, uint8_t confirmation, float param1, float param2, float param3, float param4) { mavlink_command_t *p = (mavlink_command_t *)&msg->payload[0]; msg->msgid = MAVLINK_MSG_ID_COMMAND; p->target_system = target_system; // uint8_t:System which should execute the command p->target_component = target_component; // uint8_t:Component which should execute the command, 0 for all components p->command = command; // uint8_t:Command ID, as defined by MAV_CMD enum. p->confirmation = confirmation; // uint8_t:0: First transmission of this command. 1-255: Confirmation transmissions (e.g. for kill command) p->param1 = param1; // float:Parameter 1, as defined by MAV_CMD enum. p->param2 = param2; // float:Parameter 2, as defined by MAV_CMD enum. p->param3 = param3; // float:Parameter 3, as defined by MAV_CMD enum. p->param4 = param4; // float:Parameter 4, as defined by MAV_CMD enum. return mavlink_finalize_message_chan(msg, system_id, component_id, chan, MAVLINK_MSG_ID_COMMAND_LEN); } /** * @brief Encode a command 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 command C-struct to read the message contents from */ static inline uint16_t mavlink_msg_command_encode(uint8_t system_id, uint8_t component_id, mavlink_message_t* msg, const mavlink_command_t* command) { return mavlink_msg_command_pack(system_id, component_id, msg, command->target_system, command->target_component, command->command, command->confirmation, command->param1, command->param2, command->param3, command->param4); } /** * @brief Send a command message * @param chan MAVLink channel to send the message * * @param target_system System which should execute the command * @param target_component Component which should execute the command, 0 for all components * @param command Command ID, as defined by MAV_CMD enum. * @param confirmation 0: First transmission of this command. 1-255: Confirmation transmissions (e.g. for kill command) * @param param1 Parameter 1, as defined by MAV_CMD enum. * @param param2 Parameter 2, as defined by MAV_CMD enum. * @param param3 Parameter 3, as defined by MAV_CMD enum. * @param param4 Parameter 4, as defined by MAV_CMD enum. */ #ifdef MAVLINK_USE_CONVENIENCE_FUNCTIONS static inline void mavlink_msg_command_send(mavlink_channel_t chan, uint8_t target_system, uint8_t target_component, uint8_t command, uint8_t confirmation, float param1, float param2, float param3, float param4) { mavlink_header_t hdr; mavlink_command_t payload; uint16_t checksum; mavlink_command_t *p = &payload; p->target_system = target_system; // uint8_t:System which should execute the command p->target_component = target_component; // uint8_t:Component which should execute the command, 0 for all components p->command = command; // uint8_t:Command ID, as defined by MAV_CMD enum. p->confirmation = confirmation; // uint8_t:0: First transmission of this command. 1-255: Confirmation transmissions (e.g. for kill command) p->param1 = param1; // float:Parameter 1, as defined by MAV_CMD enum. p->param2 = param2; // float:Parameter 2, as defined by MAV_CMD enum. p->param3 = param3; // float:Parameter 3, as defined by MAV_CMD enum. p->param4 = param4; // float:Parameter 4, as defined by MAV_CMD enum. hdr.STX = MAVLINK_STX; hdr.len = MAVLINK_MSG_ID_COMMAND_LEN; hdr.msgid = MAVLINK_MSG_ID_COMMAND; 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 COMMAND UNPACKING /** * @brief Get field target_system from command message * * @return System which should execute the command */ static inline uint8_t mavlink_msg_command_get_target_system(const mavlink_message_t* msg) { mavlink_command_t *p = (mavlink_command_t *)&msg->payload[0]; return (uint8_t)(p->target_system); } /** * @brief Get field target_component from command message * * @return Component which should execute the command, 0 for all components */ static inline uint8_t mavlink_msg_command_get_target_component(const mavlink_message_t* msg) { mavlink_command_t *p = (mavlink_command_t *)&msg->payload[0]; return (uint8_t)(p->target_component); } /** * @brief Get field command from command message * * @return Command ID, as defined by MAV_CMD enum. */ static inline uint8_t mavlink_msg_command_get_command(const mavlink_message_t* msg) { mavlink_command_t *p = (mavlink_command_t *)&msg->payload[0]; return (uint8_t)(p->command); } /** * @brief Get field confirmation from command message * * @return 0: First transmission of this command. 1-255: Confirmation transmissions (e.g. for kill command) */ static inline uint8_t mavlink_msg_command_get_confirmation(const mavlink_message_t* msg) { mavlink_command_t *p = (mavlink_command_t *)&msg->payload[0]; return (uint8_t)(p->confirmation); } /** * @brief Get field param1 from command message * * @return Parameter 1, as defined by MAV_CMD enum. */ static inline float mavlink_msg_command_get_param1(const mavlink_message_t* msg) { mavlink_command_t *p = (mavlink_command_t *)&msg->payload[0]; return (float)(p->param1); } /** * @brief Get field param2 from command message * * @return Parameter 2, as defined by MAV_CMD enum. */ static inline float mavlink_msg_command_get_param2(const mavlink_message_t* msg) { mavlink_command_t *p = (mavlink_command_t *)&msg->payload[0]; return (float)(p->param2); } /** * @brief Get field param3 from command message * * @return Parameter 3, as defined by MAV_CMD enum. */ static inline float mavlink_msg_command_get_param3(const mavlink_message_t* msg) { mavlink_command_t *p = (mavlink_command_t *)&msg->payload[0]; return (float)(p->param3); } /** * @brief Get field param4 from command message * * @return Parameter 4, as defined by MAV_CMD enum. */ static inline float mavlink_msg_command_get_param4(const mavlink_message_t* msg) { mavlink_command_t *p = (mavlink_command_t *)&msg->payload[0]; return (float)(p->param4); } /** * @brief Decode a command message into a struct * * @param msg The message to decode * @param command C-struct to decode the message contents into */ static inline void mavlink_msg_command_decode(const mavlink_message_t* msg, mavlink_command_t* command) { memcpy( command, msg->payload, sizeof(mavlink_command_t)); }