diff options
Diffstat (limited to 'src/modules/mavlink/mavlink_messages.cpp')
-rw-r--r-- | src/modules/mavlink/mavlink_messages.cpp | 66 |
1 files changed, 57 insertions, 9 deletions
diff --git a/src/modules/mavlink/mavlink_messages.cpp b/src/modules/mavlink/mavlink_messages.cpp index d955b5f76..a8f956ad0 100644 --- a/src/modules/mavlink/mavlink_messages.cpp +++ b/src/modules/mavlink/mavlink_messages.cpp @@ -302,7 +302,7 @@ protected: msg.base_mode = 0; msg.custom_mode = 0; get_mavlink_mode_state(&status, &pos_sp_triplet, &msg.system_status, &msg.base_mode, &msg.custom_mode); - msg.type = mavlink_system.type; + msg.type = _mavlink->get_system_type(); msg.autopilot = MAV_AUTOPILOT_PX4; msg.mavlink_version = 3; @@ -382,11 +382,11 @@ protected: clock_gettime(CLOCK_REALTIME, &ts); /* use GPS time for log file naming, e.g. /fs/microsd/2014-01-19/19_37_52.bin */ time_t gps_time_sec = ts.tv_sec + (ts.tv_nsec / 1e9); - struct tm t; - gmtime_r(&gps_time_sec, &t); + struct tm tt; + gmtime_r(&gps_time_sec, &tt); // XXX we do not want to interfere here with the SD log app - strftime(log_file_name, sizeof(log_file_name), "msgs_%Y_%m_%d_%H_%M_%S.txt", &t); + strftime(log_file_name, sizeof(log_file_name), "msgs_%Y_%m_%d_%H_%M_%S.txt", &tt); snprintf(log_file_path, sizeof(log_file_path), "/fs/microsd/%s", log_file_name); fp = fopen(log_file_path, "ab"); } @@ -1353,15 +1353,17 @@ protected: const float pwm_center = (PWM_HIGHEST_MAX + PWM_LOWEST_MIN) / 2; + unsigned system_type = _mavlink->get_system_type(); + /* scale outputs depending on system type */ - if (mavlink_system.type == MAV_TYPE_QUADROTOR || - mavlink_system.type == MAV_TYPE_HEXAROTOR || - mavlink_system.type == MAV_TYPE_OCTOROTOR) { + if (system_type == MAV_TYPE_QUADROTOR || + system_type == MAV_TYPE_HEXAROTOR || + system_type == MAV_TYPE_OCTOROTOR) { /* multirotors: set number of rotor outputs depending on type */ unsigned n; - switch (mavlink_system.type) { + switch (system_type) { case MAV_TYPE_QUADROTOR: n = 4; break; @@ -1717,7 +1719,53 @@ protected: msg.chan16_raw = (rc.channel_count > 15) ? rc.values[15] : UINT16_MAX; msg.chan17_raw = (rc.channel_count > 16) ? rc.values[16] : UINT16_MAX; msg.chan18_raw = (rc.channel_count > 17) ? rc.values[17] : UINT16_MAX; - msg.rssi = rc.rssi; + + /* RSSI has a max value of 100, and when Spektrum or S.BUS are + * available, the RSSI field is invalid, as they do not provide + * an RSSI measurement. Use an out of band magic value to signal + * these digital ports. XXX revise MAVLink spec to address this. + * One option would be to use the top bit to toggle between RSSI + * and input source mode. + * + * Full RSSI field: 0b 1 111 1111 + * + * ^ If bit is set, RSSI encodes type + RSSI + * + * ^ These three bits encode a total of 8 + * digital RC input types. + * 0: PPM, 1: SBUS, 2: Spektrum, 2: ST24 + * ^ These four bits encode a total of + * 16 RSSI levels. 15 = full, 0 = no signal + * + */ + + /* Initialize RSSI with the special mode level flag */ + msg.rssi = (1 << 7); + + /* Set RSSI */ + msg.rssi |= (rc.rssi <= 100) ? ((rc.rssi / 7) + 1) : 15; + + switch (rc.input_source) { + case RC_INPUT_SOURCE_PX4FMU_PPM: + /* fallthrough */ + case RC_INPUT_SOURCE_PX4IO_PPM: + msg.rssi |= (0 << 4); + break; + case RC_INPUT_SOURCE_PX4IO_SPEKTRUM: + msg.rssi |= (1 << 4); + break; + case RC_INPUT_SOURCE_PX4IO_SBUS: + msg.rssi |= (2 << 4); + break; + case RC_INPUT_SOURCE_PX4IO_ST24: + msg.rssi |= (3 << 4); + break; + } + + if (rc.rc_lost) { + /* RSSI is by definition zero */ + msg.rssi = 0; + } _mavlink->send_message(MAVLINK_MSG_ID_RC_CHANNELS, &msg); } |