diff options
Diffstat (limited to 'src/modules/mavlink')
-rw-r--r-- | src/modules/mavlink/mavlink_main.cpp | 27 | ||||
-rw-r--r-- | src/modules/mavlink/mavlink_main.h | 12 | ||||
-rw-r--r-- | src/modules/mavlink/mavlink_messages.cpp | 42 | ||||
-rw-r--r-- | src/modules/mavlink/mavlink_receiver.cpp | 4 |
4 files changed, 77 insertions, 8 deletions
diff --git a/src/modules/mavlink/mavlink_main.cpp b/src/modules/mavlink/mavlink_main.cpp index 1ed3f4001..f4a4ce86c 100644 --- a/src/modules/mavlink/mavlink_main.cpp +++ b/src/modules/mavlink/mavlink_main.cpp @@ -167,12 +167,12 @@ mavlink_send_uart_bytes(mavlink_channel_t channel, const uint8_t *ch, int length int buf_free = 0; if (instance->get_flow_control_enabled() - && ioctl(uart, FIONWRITE, (unsigned long)&buf_free) == 0) { + && ioctl(uart, FIONWRITE, (unsigned long)&buf_free) == 0) { if (buf_free == 0) { if (last_write_times[(unsigned)channel] != 0 && - hrt_elapsed_time(&last_write_times[(unsigned)channel]) > 500 * 1000UL) { + hrt_elapsed_time(&last_write_times[(unsigned)channel]) > 500 * 1000UL) { warnx("DISABLING HARDWARE FLOW CONTROL"); instance->enable_flow_control(false); @@ -186,12 +186,17 @@ mavlink_send_uart_bytes(mavlink_channel_t channel, const uint8_t *ch, int length } } - ssize_t ret = write(uart, ch, desired); - - if (ret != desired) { - // XXX do something here, but change to using FIONWRITE and OS buf size for detection + /* If the wait until transmit flag is on, only transmit after we've received messages. + Otherwise, transmit all the time. */ + if (instance->should_transmit()) { + ssize_t ret = write(uart, ch, desired); + if (ret != desired) { + // XXX do something here, but change to using FIONWRITE and OS buf size for detection + } } + + } static void usage(void); @@ -204,6 +209,8 @@ Mavlink::Mavlink() : _task_running(false), _hil_enabled(false), _is_usb_uart(false), + _wait_to_transmit(false), + _received_messages(false), _main_loop_delay(1000), _subscriptions(nullptr), _streams(nullptr), @@ -1768,7 +1775,7 @@ Mavlink::task_main(int argc, char *argv[]) * set error flag instead */ bool err_flag = false; - while ((ch = getopt(argc, argv, "b:r:d:m:fpv")) != EOF) { + while ((ch = getopt(argc, argv, "b:r:d:m:fpvw")) != EOF) { switch (ch) { case 'b': _baudrate = strtoul(optarg, NULL, 10); @@ -1820,6 +1827,10 @@ Mavlink::task_main(int argc, char *argv[]) _verbose = true; break; + case 'w': + _wait_to_transmit = true; + break; + default: err_flag = true; break; @@ -2264,7 +2275,7 @@ Mavlink::stream(int argc, char *argv[]) static void usage() { - warnx("usage: mavlink {start|stop-all|stream} [-d device] [-b baudrate] [-r rate] [-m mode] [-s stream] [-f] [-p] [-v]"); + warnx("usage: mavlink {start|stop-all|stream} [-d device] [-b baudrate] [-r rate] [-m mode] [-s stream] [-f] [-p] [-v] [-w]"); } int mavlink_main(int argc, char *argv[]) diff --git a/src/modules/mavlink/mavlink_main.h b/src/modules/mavlink/mavlink_main.h index 9941a5f99..66d82b471 100644 --- a/src/modules/mavlink/mavlink_main.h +++ b/src/modules/mavlink/mavlink_main.h @@ -202,6 +202,14 @@ public: int get_mavlink_fd() { return _mavlink_fd; } + + /* Functions for waiting to start transmission until message received. */ + void set_has_received_messages(bool received_messages) { _received_messages = received_messages; } + bool get_has_received_messages() { return _received_messages; } + void set_wait_to_transmit(bool wait) { _wait_to_transmit = wait; } + bool get_wait_to_transmit() { return _wait_to_transmit; } + bool should_transmit() { return (!_wait_to_transmit || (_wait_to_transmit && _received_messages)); } + protected: Mavlink *next; @@ -216,6 +224,8 @@ private: /* states */ bool _hil_enabled; /**< Hardware In the Loop mode */ bool _is_usb_uart; /**< Port is USB */ + bool _wait_to_transmit; /**< Wait to transmit until received messages. */ + bool _received_messages; /**< Whether we've received valid mavlink messages. */ unsigned _main_loop_delay; /**< mainloop delay, depends on data rate */ @@ -270,6 +280,8 @@ private: pthread_mutex_t _message_buffer_mutex; + + /** * Send one parameter. * diff --git a/src/modules/mavlink/mavlink_messages.cpp b/src/modules/mavlink/mavlink_messages.cpp index 47603b390..648228e3b 100644 --- a/src/modules/mavlink/mavlink_messages.cpp +++ b/src/modules/mavlink/mavlink_messages.cpp @@ -640,6 +640,47 @@ protected: }; + +class MavlinkStreamViconPositionEstimate : public MavlinkStream +{ +public: + const char *get_name() + { + return "VICON_POSITION_ESTIMATE"; + } + + MavlinkStream *new_instance() + { + return new MavlinkStreamViconPositionEstimate(); + } + +private: + MavlinkOrbSubscription *pos_sub; + struct vehicle_vicon_position_s *pos; + +protected: + void subscribe(Mavlink *mavlink) + { + pos_sub = mavlink->add_orb_subscription(ORB_ID(vehicle_vicon_position)); + pos = (struct vehicle_vicon_position_s *)pos_sub->get_data(); + } + + void send(const hrt_abstime t) + { + if (pos_sub->update(t)) { + mavlink_msg_vicon_position_estimate_send(_channel, + pos->timestamp / 1000, + pos->x, + pos->y, + pos->z, + pos->roll, + pos->pitch, + pos->yaw); + } + } +}; + + class MavlinkStreamGPSGlobalOrigin : public MavlinkStream { public: @@ -1297,5 +1338,6 @@ MavlinkStream *streams_list[] = { new MavlinkStreamAttitudeControls(), new MavlinkStreamNamedValueFloat(), new MavlinkStreamCameraCapture(), + new MavlinkStreamViconPositionEstimate(), nullptr }; diff --git a/src/modules/mavlink/mavlink_receiver.cpp b/src/modules/mavlink/mavlink_receiver.cpp index c66350f5b..b4fe65fd2 100644 --- a/src/modules/mavlink/mavlink_receiver.cpp +++ b/src/modules/mavlink/mavlink_receiver.cpp @@ -181,6 +181,10 @@ MavlinkReceiver::handle_message(mavlink_message_t *msg) break; } } + + /* If we've received a valid message, mark the flag indicating so. + This is used in the '-w' command-line flag. */ + _mavlink->set_has_received_messages(true); } void |