WIP: More Comm-B & ADS-B decoding.
This commit is contained in:
Oliver Jowett
parent
2e0aba4f1f
commit
98d64483d6
10 changed files with 1446 additions and 438 deletions
123
dump1090.h
123
dump1090.h
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@ -167,7 +167,7 @@ typedef enum {
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typedef enum {
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ALTITUDE_BARO,
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ALTITUDE_GNSS
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ALTITUDE_GEOM
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} altitude_source_t;
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typedef enum {
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@ -177,12 +177,6 @@ typedef enum {
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AG_UNCERTAIN
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} airground_t;
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typedef enum {
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SPEED_GROUNDSPEED,
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SPEED_IAS,
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SPEED_TAS
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} speed_source_t;
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typedef enum {
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HEADING_TRUE,
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HEADING_MAGNETIC
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@ -196,6 +190,18 @@ typedef enum {
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CPR_SURFACE, CPR_AIRBORNE, CPR_COARSE
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} cpr_type_t;
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typedef enum {
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COMMB_UNKNOWN,
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COMMB_EMPTY_RESPONSE,
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COMMB_DATALINK_CAPS,
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COMMB_GICB_CAPS,
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COMMB_AIRCRAFT_IDENT,
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COMMB_ACAS_RA,
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COMMB_VERTICAL_INTENT,
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COMMB_TRACK_TURN,
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COMMB_HEADING_SPEED
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} commb_format_t;
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#define MODES_NON_ICAO_ADDRESS (1<<24) // Set on addresses to indicate they are not ICAO addresses
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#define MODES_DEBUG_DEMOD (1<<0)
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@ -406,19 +412,24 @@ struct modesMessage {
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// Decoded data
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unsigned altitude_valid : 1;
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unsigned heading_valid : 1;
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unsigned speed_valid : 1;
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unsigned vert_rate_valid : 1;
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unsigned track_valid : 1;
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unsigned track_rate_valid : 1;
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unsigned mag_heading_valid : 1;
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unsigned roll_valid : 1;
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unsigned gs_valid : 1;
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unsigned ias_valid : 1;
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unsigned tas_valid : 1;
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unsigned mach_valid : 1;
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unsigned baro_rate_valid : 1;
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unsigned geom_rate_valid : 1;
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unsigned squawk_valid : 1;
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unsigned callsign_valid : 1;
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unsigned ew_velocity_valid : 1;
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unsigned ns_velocity_valid : 1;
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unsigned cpr_valid : 1;
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unsigned cpr_odd : 1;
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unsigned cpr_decoded : 1;
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unsigned cpr_relative : 1;
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unsigned category_valid : 1;
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unsigned gnss_delta_valid : 1;
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unsigned geom_delta_valid : 1;
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unsigned from_mlat : 1;
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unsigned from_tisb : 1;
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unsigned spi_valid : 1;
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@ -429,26 +440,27 @@ struct modesMessage {
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unsigned metype; // DF17/18 ME type
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unsigned mesub; // DF17/18 ME subtype
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commb_format_t commb_format; // Inferred format of a comm-b message
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// valid if altitude_valid:
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int altitude; // Altitude in either feet or meters
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altitude_unit_t altitude_unit; // the unit used for altitude
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altitude_source_t altitude_source; // whether the altitude is a barometric altude or a GNSS height
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// valid if gnss_delta_valid:
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int gnss_delta; // difference between GNSS and baro alt
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// valid if heading_valid:
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unsigned heading; // Reported by aircraft, or computed from from EW and NS velocity
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heading_source_t heading_source; // what "heading" is measuring (true or magnetic heading)
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// valid if speed_valid:
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unsigned speed; // in kts, reported by aircraft, or computed from from EW and NS velocity
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speed_source_t speed_source; // what "speed" is measuring (groundspeed / IAS / TAS)
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// valid if vert_rate_valid:
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int vert_rate; // vertical rate in feet/minute
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altitude_source_t vert_rate_source; // the altitude source used for vert_rate
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// valid if squawk_valid:
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unsigned squawk; // 13 bits identity (Squawk), encoded as 4 hex digits
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// valid if callsign_valid
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char callsign[9]; // 8 chars flight number
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// valid if category_valid
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altitude_source_t altitude_source; // whether the altitude is a barometric altitude or a geometric height
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// following fields are valid if the corresponding _valid field is set:
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int geom_delta; // Difference between geometric and baro alt
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float track; // True ground track, degrees (0-359). Reported directly or computed from from EW and NS velocity
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float track_rate; // Rate of change of track, degrees/second
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float mag_heading; // Magnetic heading, degrees (0-359)
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float roll; // Roll, degrees, negative is left roll
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unsigned gs; // Groundspeed, kts, reported directly or computed from from EW and NS velocity
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unsigned ias; // Indicated airspeed, kts
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unsigned tas; // True airspeed, kts
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double mach; // Mach number
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int baro_rate; // Rate of change of barometric altitude, feet/minute
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int geom_rate; // Rate of change of geometric (GNSS / INS) altitude, feet/minute
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unsigned squawk; // 13 bits identity (Squawk), encoded as 4 hex digits
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char callsign[9]; // 8 chars flight number, NUL-terminated
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unsigned category; // A0 - D7 encoded as a single hex byte
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// valid if cpr_valid
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cpr_type_t cpr_type; // The encoding type used (surface, airborne, coarse TIS-B)
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@ -500,32 +512,37 @@ struct modesMessage {
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unsigned cc_antenna_offset;
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} opstatus;
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// Target State & Status (ADS-B V2 only)
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// combined:
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// Target State & Status (ADS-B V2 only)
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// Comm-B BDS4,0 Vertical Intent
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struct {
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unsigned valid : 1;
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unsigned altitude_valid : 1;
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unsigned baro_valid : 1;
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unsigned heading_valid : 1;
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unsigned mode_valid : 1;
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unsigned mode_autopilot : 1;
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unsigned mode_vnav : 1;
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unsigned mode_alt_hold : 1;
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unsigned mode_approach : 1;
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unsigned acas_operational : 1;
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unsigned nac_p : 4;
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unsigned nic_baro : 1;
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unsigned sil : 2;
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sil_type_t sil_type;
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enum { TSS_ALTITUDE_MCP, TSS_ALTITUDE_FMS } altitude_type;
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unsigned altitude;
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float baro;
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unsigned heading;
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} tss;
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unsigned heading_valid : 1;
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unsigned fms_altitude_valid : 1;
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unsigned mcp_altitude_valid : 1;
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unsigned alt_setting_valid : 1;
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float heading; // heading, degrees (0-359) (could be magnetic or true heading; magnetic recommended)
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unsigned fms_altitude; // FMS selected altitude
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unsigned mcp_altitude; // MCP/FCU selected altitude
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float alt_setting; // altimeter setting (QFE or QNH/QNE), millibars
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enum { TARGET_INVALID, TARGET_UNKNOWN, TARGET_AIRCRAFT, TARGET_MCP, TARGET_FMS } altitude_source;
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unsigned mode_autopilot : 1; // Autopilot engaged
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unsigned mode_vnav : 1; // Vertical Navigation Mode active
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unsigned mode_alt_hold : 1; // Altitude Hold Mode active
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unsigned mode_approach : 1; // Approach Mode active
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unsigned mode_lnav : 1; // Lateral Navigation Mode active
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} intent;
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};
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// This one needs modesMessage:
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#include "track.h"
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#include "mode_s.h"
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#include "comm_b.h"
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// ======================== function declarations =========================
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@ -542,14 +559,6 @@ void modeACInit();
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int modeAToModeC (unsigned int modeA);
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unsigned modeCToModeA (int modeC);
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//
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// Functions exported from mode_s.c
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//
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int modesMessageLenByType(int type);
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int scoreModesMessage(unsigned char *msg, int validbits);
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int decodeModesMessage (struct modesMessage *mm, unsigned char *msg);
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void displayModesMessage(struct modesMessage *mm);
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void useModesMessage (struct modesMessage *mm);
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//
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// Functions exported from interactive.c
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//
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