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author | M.H.Kabir <mhkabir98@gmail.com> | 2015-01-11 12:59:30 +0530 |
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committer | Mohammed Kabir <mhkabir98@gmail.com> | 2015-04-14 13:14:15 +0530 |
commit | 66e6938c6d979b1a955af7dbb3abb4d420d7c241 (patch) | |
tree | 0c39edb99b92e9146625fdd40628b717532641ba /src/modules/mavlink | |
parent | 3c36a615692d746996e4d32a97e8e24285330913 (diff) | |
download | px4-firmware-66e6938c6d979b1a955af7dbb3abb4d420d7c241.tar.gz px4-firmware-66e6938c6d979b1a955af7dbb3abb4d420d7c241.tar.bz2 px4-firmware-66e6938c6d979b1a955af7dbb3abb4d420d7c241.zip |
timesync: Add uORB topic, general fixes
Diffstat (limited to 'src/modules/mavlink')
-rw-r--r-- | src/modules/mavlink/mavlink_receiver.cpp | 24 | ||||
-rw-r--r-- | src/modules/mavlink/mavlink_receiver.h | 7 |
2 files changed, 25 insertions, 6 deletions
diff --git a/src/modules/mavlink/mavlink_receiver.cpp b/src/modules/mavlink/mavlink_receiver.cpp index 3f9f7e139..faede15cb 100644 --- a/src/modules/mavlink/mavlink_receiver.cpp +++ b/src/modules/mavlink/mavlink_receiver.cpp @@ -121,6 +121,7 @@ MavlinkReceiver::MavlinkReceiver(Mavlink *parent) : _rc_pub(-1), _manual_pub(-1), _land_detector_pub(-1), + _time_offset_pub(-1), _control_mode_sub(orb_subscribe(ORB_ID(vehicle_control_mode))), _hil_frames(0), _old_timestamp(0), @@ -729,8 +730,8 @@ MavlinkReceiver::handle_message_vision_position_estimate(mavlink_message_t *msg) // Use the component ID to identify the vision sensor vision_position.id = msg->compid; - vision_position.timestamp_boot = to_hrt(pos.usec); // Synced time - vision_position.timestamp_computer = pos.usec; + vision_position.timestamp_boot = hrt_absolute_time(); // Monotonic time + vision_position.timestamp_computer = sync_stamp(pos.usec); // Synced time vision_position.x = pos.x; vision_position.y = pos.y; vision_position.z = pos.z; @@ -1013,6 +1014,9 @@ MavlinkReceiver::handle_message_timesync(mavlink_message_t *msg) mavlink_timesync_t tsync; mavlink_msg_timesync_decode(msg, &tsync); + struct time_offset_s tsync_offset; + memset(&tsync_offset, 0, sizeof(tsync_offset)); + uint64_t now_ns = hrt_absolute_time() * 1000LL ; if (tsync.tc1 == 0) { @@ -1039,6 +1043,15 @@ MavlinkReceiver::handle_message_timesync(mavlink_message_t *msg) } } + tsync_offset.offset_ns = _time_offset ; + + if (_time_offset_pub < 0) { + _time_offset_pub = orb_advertise(ORB_ID(time_offset), &tsync_offset); + + } else { + orb_publish(ORB_ID(time_offset), _time_offset_pub, &tsync_offset); + } + } void @@ -1522,9 +1535,12 @@ void MavlinkReceiver::print_status() } -uint64_t MavlinkReceiver::to_hrt(uint64_t usec) +uint64_t MavlinkReceiver::sync_stamp(uint64_t usec) { - return usec - (_time_offset / 1000) ; + if(_time_offset > 0) + return usec - (_time_offset / 1000) ; + else + return hrt_absolute_time(); } diff --git a/src/modules/mavlink/mavlink_receiver.h b/src/modules/mavlink/mavlink_receiver.h index ffacb59a6..2b6174f8f 100644 --- a/src/modules/mavlink/mavlink_receiver.h +++ b/src/modules/mavlink/mavlink_receiver.h @@ -73,6 +73,7 @@ #include <uORB/topics/airspeed.h> #include <uORB/topics/battery_status.h> #include <uORB/topics/vehicle_force_setpoint.h> +#include <uORB/topics/time_offset.h> #include "mavlink_ftp.h" @@ -138,9 +139,10 @@ private: void *receive_thread(void *arg); /** - * Convert remote nsec timestamp to local hrt time (usec) + * Convert remote timestamp to local hrt time (usec) + * Use timesync if available, monotonic boot time otherwise */ - uint64_t to_hrt(uint64_t nsec); + uint64_t sync_stamp(uint64_t usec); /** * Exponential moving average filter to smooth time offset */ @@ -177,6 +179,7 @@ private: orb_advert_t _rc_pub; orb_advert_t _manual_pub; orb_advert_t _land_detector_pub; + orb_advert_t _time_offset_pub; int _control_mode_sub; int _hil_frames; uint64_t _old_timestamp; |