Ardupilot2/libraries/GCS_MAVLink/include/common/mavlink_msg_action_ack.h
tridge60@gmail.com 3ae2186021 imported new MAVLink implementation
this new implementation reduces code size, and also reduces stack
usage, while avoiding the gcc union stack bug

Note that we will gain even more when we move to the new protocol
version, especially in terms of code size

git-svn-id: https://arducopter.googlecode.com/svn/trunk@3200 f9c3cf11-9bcb-44bc-f272-b75c42450872
2011-08-31 05:23:18 +00:00

167 lines
4.8 KiB
C

// MESSAGE ACTION_ACK PACKING
#define MAVLINK_MSG_ID_ACTION_ACK 9
typedef struct __mavlink_action_ack_t
{
uint8_t action; ///< The action id
uint8_t result; ///< 0: Action DENIED, 1: Action executed
} mavlink_action_ack_t;
#define MAVLINK_MSG_ID_ACTION_ACK_LEN 2
#define MAVLINK_MSG_ID_9_LEN 2
#define MAVLINK_MESSAGE_INFO_ACTION_ACK { \
"ACTION_ACK", \
2, \
{ { "action", MAVLINK_TYPE_UINT8_T, 0, 0, offsetof(mavlink_action_ack_t, action) }, \
{ "result", MAVLINK_TYPE_UINT8_T, 0, 1, offsetof(mavlink_action_ack_t, result) }, \
} \
}
/**
* @brief Pack a action_ack 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 action The action id
* @param result 0: Action DENIED, 1: Action executed
* @return length of the message in bytes (excluding serial stream start sign)
*/
static inline uint16_t mavlink_msg_action_ack_pack(uint8_t system_id, uint8_t component_id, mavlink_message_t* msg,
uint8_t action, uint8_t result)
{
#if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS
char buf[2];
_mav_put_uint8_t(buf, 0, action);
_mav_put_uint8_t(buf, 1, result);
memcpy(_MAV_PAYLOAD(msg), buf, 2);
#else
mavlink_action_ack_t packet;
packet.action = action;
packet.result = result;
memcpy(_MAV_PAYLOAD(msg), &packet, 2);
#endif
msg->msgid = MAVLINK_MSG_ID_ACTION_ACK;
return mavlink_finalize_message(msg, system_id, component_id, 2);
}
/**
* @brief Pack a action_ack message on a channel
* @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 action The action id
* @param result 0: Action DENIED, 1: Action executed
* @return length of the message in bytes (excluding serial stream start sign)
*/
static inline uint16_t mavlink_msg_action_ack_pack_chan(uint8_t system_id, uint8_t component_id, uint8_t chan,
mavlink_message_t* msg,
uint8_t action,uint8_t result)
{
#if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS
char buf[2];
_mav_put_uint8_t(buf, 0, action);
_mav_put_uint8_t(buf, 1, result);
memcpy(_MAV_PAYLOAD(msg), buf, 2);
#else
mavlink_action_ack_t packet;
packet.action = action;
packet.result = result;
memcpy(_MAV_PAYLOAD(msg), &packet, 2);
#endif
msg->msgid = MAVLINK_MSG_ID_ACTION_ACK;
return mavlink_finalize_message_chan(msg, system_id, component_id, chan, 2);
}
/**
* @brief Encode a action_ack 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 action_ack C-struct to read the message contents from
*/
static inline uint16_t mavlink_msg_action_ack_encode(uint8_t system_id, uint8_t component_id, mavlink_message_t* msg, const mavlink_action_ack_t* action_ack)
{
return mavlink_msg_action_ack_pack(system_id, component_id, msg, action_ack->action, action_ack->result);
}
/**
* @brief Send a action_ack message
* @param chan MAVLink channel to send the message
*
* @param action The action id
* @param result 0: Action DENIED, 1: Action executed
*/
#ifdef MAVLINK_USE_CONVENIENCE_FUNCTIONS
static inline void mavlink_msg_action_ack_send(mavlink_channel_t chan, uint8_t action, uint8_t result)
{
#if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS
char buf[2];
_mav_put_uint8_t(buf, 0, action);
_mav_put_uint8_t(buf, 1, result);
_mav_finalize_message_chan_send(chan, MAVLINK_MSG_ID_ACTION_ACK, buf, 2);
#else
mavlink_action_ack_t packet;
packet.action = action;
packet.result = result;
_mav_finalize_message_chan_send(chan, MAVLINK_MSG_ID_ACTION_ACK, (const char *)&packet, 2);
#endif
}
#endif
// MESSAGE ACTION_ACK UNPACKING
/**
* @brief Get field action from action_ack message
*
* @return The action id
*/
static inline uint8_t mavlink_msg_action_ack_get_action(const mavlink_message_t* msg)
{
return _MAV_RETURN_uint8_t(msg, 0);
}
/**
* @brief Get field result from action_ack message
*
* @return 0: Action DENIED, 1: Action executed
*/
static inline uint8_t mavlink_msg_action_ack_get_result(const mavlink_message_t* msg)
{
return _MAV_RETURN_uint8_t(msg, 1);
}
/**
* @brief Decode a action_ack message into a struct
*
* @param msg The message to decode
* @param action_ack C-struct to decode the message contents into
*/
static inline void mavlink_msg_action_ack_decode(const mavlink_message_t* msg, mavlink_action_ack_t* action_ack)
{
#if MAVLINK_NEED_BYTE_SWAP
action_ack->action = mavlink_msg_action_ack_get_action(msg);
action_ack->result = mavlink_msg_action_ack_get_result(msg);
#else
memcpy(action_ack, _MAV_PAYLOAD(msg), 2);
#endif
}