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125 lines
2.7 KiB
125 lines
2.7 KiB
syntax = "proto2";
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package android.location.cts.gnss;
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// RPC service for providing ephemeris data
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message GpsTimeProto {
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optional int64 nanosecond = 1;
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}
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message GpsEphemerisProto {
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// Time used for generating this data (typically, the queried time).
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optional GpsTimeProto data_time = 1;
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// PRN.
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optional int32 prn = 2;
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// GPS week number.
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optional int32 week = 3;
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// Code on L2.
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optional int32 l2_code = 4;
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// L2 P data flag.
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optional int32 l2_flag = 5;
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// SV accuracy in meters.
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optional double sv_accuracy_m = 6;
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// SV health bits.
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optional int32 sv_health = 7;
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// Issue of data (ephemeris).
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optional int32 iode = 8;
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// Issue of data (clock).
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optional int32 iodc = 9;
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// Time of clock (second).
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optional double toc = 10;
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// Time of ephemeris (second).
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optional double toe = 11;
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// Transmission time of the message.
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optional double tom = 12;
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// Clock info (drift, bias, etc).
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optional double af0 = 13;
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optional double af1 = 14;
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optional double af2 = 15;
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optional double tgd = 16;
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// Orbital parameters.
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// Square root of semi-major axis
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optional double root_of_a = 17;
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// Eccentricity.
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optional double e = 18;
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// Inclination angle (radian).
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optional double i_0 = 19;
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// Rate of inclination angle (radians/sec).
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optional double i_dot = 20;
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// Argument of perigee.
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optional double omega = 21;
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// Longitude of ascending node of orbit plane at the beginning of week.
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optional double omega_0 = 22;
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// Rate of right ascension.
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optional double omega_dot = 23;
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// Mean anomaly at reference time.
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optional double m_0 = 24;
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// Mean motion difference from computed value.
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optional double delta_n = 25;
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// Amplitude of second-order harmonic perturbations.
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optional double crc = 26;
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optional double crs = 27;
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optional double cuc = 28;
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optional double cus = 29;
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optional double cic = 30;
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optional double cis = 31;
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// FIT interval.
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optional double fit_interval = 32;
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}
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// Klobuchar Ionospheric Model
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message IonosphericModelProto {
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// Time used for generating this data (typically, the queried time).
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optional GpsTimeProto data_time = 1;
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// Amplitude parameters
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repeated double alpha = 2;
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// Period parameters.
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repeated double beta = 3;
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}
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message UtcModelProto {
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optional double a_0 = 1;
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optional double a_1 = 2;
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optional int64 tow = 3;
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optional int32 leap_seconds = 4;
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}
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message GpsNavMessageProto {
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// Status for the RPC call.
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enum RpcStatus {
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UNKNOWN_RPC_STATUS = 0;
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SUCCESS = 1;
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SERVER_ERROR = 2;
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}
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optional RpcStatus rpc_status = 1;
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optional IonosphericModelProto iono = 2;
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optional UtcModelProto utc_model = 3;
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repeated GpsEphemerisProto ephemerids = 4;
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}
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