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Optimized the memory consumption and renamed PRN

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Bug: 27058251
Change-Id: I0654fa18796eabc4c1e0b8caa9374998923292f4
This commit is contained in:
Lifu Tang 2016-02-07 18:09:30 -08:00
parent e087fefb4d
commit 7e33bb2734
2 changed files with 172 additions and 173 deletions
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244
include/hardware/gps.h
View file

@ -39,10 +39,15 @@ typedef int64_t GpsUtcTime;
/** Maximum number of SVs for gps_sv_status_callback(). */
#define GPS_MAX_SVS 32
/** Maximum number of SVs for gps_sv_status_callback(). */
#define GNSS_MAX_SVS 64
/** Maximum number of Measurements in gps_measurement_callback(). */
#define GPS_MAX_MEASUREMENT 32
/** Maximum number of Measurements in gnss_measurement_callback(). */
#define GNSS_MAX_MEASUREMENT 64
/** Requested operational mode for GPS operation. */
typedef uint32_t GpsPositionMode;
// IMPORTANT: Note that the following values must match
@ -524,7 +529,7 @@ typedef struct {
* - Galileo: 1-25
* - Beidou: 1-35
*/
int prn;
int16_t svid;
/** Signal to noise ratio. */
float snr;
@ -550,63 +555,36 @@ typedef struct {
} GnssSvInfo;
/**
* Represents SV status.
*
* When switching from pre-N to N version of GpsSvStatus:
*
* 1) Fill in the fields from num_svs through used_in_fix_mask the same way as
* was done before, e.g. using the range of 65-88 to report Glonass info,
* 201-235 for Beidou, etc. (but with no used_in_fix_mask info - those are
* index by prn, and thus for GPS only). This will help ensure compatibility
* when a newer GPS HAL is used with an older version of Android.
*
* 2) Fill in the gnss_sv_list with information about SVs from all
* constellations (GPS & other GNSS's) - when this is filled in, this will be
* the only source of information about satellite status (e.g. for working with
* GpsStatus facing applications), the earlier fields will be ignored.
* Legacy struct to represents SV status.
* Deprecated, to be removed in the next Android release.
* Use GnssSvStatus instead.
*/
typedef struct {
/** set to sizeof(GpsSvStatus) */
size_t size;
int num_svs;
GpsSvInfo sv_list[GPS_MAX_SVS];
uint32_t ephemeris_mask;
uint32_t almanac_mask;
uint32_t used_in_fix_mask;
} GpsSvStatus;
/**
* Represents SV status.
*/
typedef struct {
/** set to sizeof(GnssSvStatus) */
size_t size;
/** Number of GPS SVs currently visible, refers to the SVs stored in sv_list */
int num_svs;
/** Contains an array of GPS SV information in legacy GPS format. */
GpsSvInfo sv_list[GPS_MAX_SVS];
/**
* Represents a bit mask indicating which GPS SVs have ephemeris data,
* refers to sv_list.
*/
uint32_t ephemeris_mask;
/**
* Represents a bit mask indicating which GPS SVs have almanac data, refers
* to sv_list.
*/
uint32_t almanac_mask;
/**
* Represents a bit mask indicating which GPS SVs
* were used for computing the most recent position fix,
* refers to sv_list.
*/
uint32_t used_in_fix_mask;
/**
* Size of the array which contains SV info for all GNSS constellation
* except for GPS.
*/
size_t gnss_sv_list_size;
/**
* Pointer to an array of SVs information for all GNSS constellations,
* except GPS, which is reported using sv_list
*/
GnssSvInfo* gnss_sv_list;
GnssSvInfo gnss_sv_list[GNSS_MAX_SVS];
} GpsSvStatus;
} GnssSvStatus;
/* CellID for 2G, 3G and LTE, used in AGPS. */
typedef struct {
@ -659,6 +637,12 @@ typedef void (* gps_status_callback)(GpsStatus* status);
*/
typedef void (* gps_sv_status_callback)(GpsSvStatus* sv_info);
/**
* Callback with SV status information.
* Can only be called from a thread created by create_thread_cb.
*/
typedef void (* gnss_sv_status_callback)(GnssSvStatus* sv_info);
/**
* Callback for reporting NMEA sentences. Can only be called from a thread
* created by create_thread_cb.
@ -715,24 +699,6 @@ typedef struct {
*/
typedef void (*gps_set_system_info)(const GpsSystemInfo* info);
/**
* Legacy GPS callback structure.
* See GpsCallbacks for more information.
*/
typedef struct {
/** set to sizeof(GpsCallbacks_v1) */
size_t size;
gps_location_callback location_cb;
gps_status_callback status_cb;
gps_sv_status_callback sv_status_cb;
gps_nmea_callback nmea_cb;
gps_set_capabilities set_capabilities_cb;
gps_acquire_wakelock acquire_wakelock_cb;
gps_release_wakelock release_wakelock_cb;
gps_create_thread create_thread_cb;
gps_request_utc_time request_utc_time_cb;
} GpsCallbacks_v1;
/** New GPS callback structure. */
typedef struct {
/** set to sizeof(GpsCallbacks) */
@ -747,15 +713,8 @@ typedef struct {
gps_create_thread create_thread_cb;
gps_request_utc_time request_utc_time_cb;
/**
* Callback for the chipset to report system information.
*
* This field is newly introduced since N. The driver implementation must
* check 'size' field against 'sizeof(GpsCallbacks)' and
* 'sizeof(GpsCallbacks_v1)' to decide whether the new field is valid before
* calling it.
*/
gps_set_system_info set_system_info_cb;
gnss_sv_status_callback gnss_sv_status_cb;
} GpsCallbacks;
/** Represents the standard GPS interface. */
@ -1402,11 +1361,31 @@ typedef struct {
} GpsGeofencingInterface;
/**
* Represents an estimate of the GPS clock time.
* Legacy struct to represent an estimate of the GPS clock time.
* Deprecated, to be removed in the next Android release.
* Use GnssClock instead.
*/
typedef struct {
/** set to sizeof(GpsClock) */
size_t size;
GpsClockFlags flags;
int16_t leap_second;
GpsClockType type;
int64_t time_ns;
double time_uncertainty_ns;
int64_t full_bias_ns;
double bias_ns;
double bias_uncertainty_ns;
double drift_nsps;
double drift_uncertainty_nsps;
} GpsClock;
/**
* Represents an estimate of the GPS clock time.
*/
typedef struct {
/** set to sizeof(GnssClock) */
size_t size;
/** A set of flags indicating the validity of the fields in this data structure. */
GpsClockFlags flags;
@ -1538,10 +1517,53 @@ typedef struct {
* re-solve for the clock bias and drift.
*/
int64_t time_of_last_hw_clock_discontinuity_ns;
} GpsClock;
} GnssClock;
/**
* Represents a GPS Measurement, it contains raw and computed information.
* Legacy struct to represent a GPS Measurement, it contains raw and computed
* information.
* Deprecated, to be removed in the next Android release.
* Use GnssMeasurement instead.
*/
typedef struct {
/** set to sizeof(GpsMeasurement) */
size_t size;
GpsMeasurementFlags flags;
int8_t prn;
double time_offset_ns;
GpsMeasurementState state;
int64_t received_gps_tow_ns;
int64_t received_gps_tow_uncertainty_ns;
double c_n0_dbhz;
double pseudorange_rate_mps;
double pseudorange_rate_uncertainty_mps;
GpsAccumulatedDeltaRangeState accumulated_delta_range_state;
double accumulated_delta_range_m;
double accumulated_delta_range_uncertainty_m;
double pseudorange_m;
double pseudorange_uncertainty_m;
double code_phase_chips;
double code_phase_uncertainty_chips;
float carrier_frequency_hz;
int64_t carrier_cycles;
double carrier_phase;
double carrier_phase_uncertainty;
GpsLossOfLock loss_of_lock;
int32_t bit_number;
int16_t time_from_last_bit_ms;
double doppler_shift_hz;
double doppler_shift_uncertainty_hz;
GpsMultipathIndicator multipath_indicator;
double snr_db;
double elevation_deg;
double elevation_uncertainty_deg;
double azimuth_deg;
double azimuth_uncertainty_deg;
bool used_in_fix;
} GpsMeasurement;
/**
* Represents a GNSS Measurement, it contains raw and computed information.
*/
typedef struct {
/** set to sizeof(GpsMeasurement) */
@ -1551,10 +1573,10 @@ typedef struct {
GpsMeasurementFlags flags;
/**
* Pseudo-random number in the range of [1, 32]
* Satellite vehicle ID number, as defined in GnssSvInfo::svid
* This is a mandatory value.
*/
int8_t prn;
int16_t svid;
/**
* Time offset at which the measurement was taken in nanoseconds.
@ -1858,22 +1880,37 @@ typedef struct {
*/
double pseudorange_rate_carrier_uncertainty_mps;
} GpsMeasurement;
} GnssMeasurement;
/**
* Legacy struct to represents a reading of GPS measurements.
* Deprecated, to be removed in the next Android release.
* Use GnssData instead.
*/
typedef struct {
/** set to sizeof(GpsData) */
size_t size;
size_t measurement_count;
GpsMeasurement measurements[GPS_MAX_MEASUREMENT];
/** The GPS clock time reading. */
GpsClock clock;
} GpsData;
/** Represents a reading of GPS measurements. */
typedef struct {
/** set to sizeof(GpsData) */
/** set to sizeof(GnssData) */
size_t size;
/** Number of measurements. */
size_t measurement_count;
/** The array of measurements. */
GpsMeasurement measurements[GPS_MAX_MEASUREMENT];
GnssMeasurement measurements[GNSS_MAX_MEASUREMENT];
/** The GPS clock time reading. */
GpsClock clock;
} GpsData;
GnssClock clock;
} GnssData;
/**
* The callback for to report measurements from the HAL.
@ -1883,10 +1920,19 @@ typedef struct {
*/
typedef void (*gps_measurement_callback) (GpsData* data);
/**
* The callback for to report measurements from the HAL.
*
* Parameters:
* data - A data structure containing the measurements.
*/
typedef void (*gnss_measurement_callback) (GnssData* data);
typedef struct {
/** set to sizeof(GpsMeasurementCallbacks) */
size_t size;
gps_measurement_callback measurement_callback;
gnss_measurement_callback gnss_measurement_callback;
} GpsMeasurementCallbacks;
#define GPS_MEASUREMENT_OPERATION_SUCCESS 0
@ -1923,17 +1969,32 @@ typedef struct {
} GpsMeasurementInterface;
/** Represents a GPS navigation message (or a fragment of it). */
/**
* Legacy struct to represents a GPS navigation message (or a fragment of it).
* Deprecated, to be removed in the next Android release.
* Use GnssNavigationMessage instead.
*/
typedef struct {
/** set to sizeof(GpsNavigationMessage) */
size_t size;
int8_t prn;
GpsNavigationMessageType type;
NavigationMessageStatus status;
int16_t message_id;
int16_t submessage_id;
size_t data_length;
uint8_t* data;
} GpsNavigationMessage;
/** Represents a GPS navigation message (or a fragment of it). */
typedef struct {
/** set to sizeof(GnssNavigationMessage) */
size_t size;
/**
* Pseudo-random number in the range of [1, 32]
* This is a mandatory value.
*/
int8_t prn;
int16_t svid;
/**
* The type of message contained in the structure.
@ -1982,7 +2043,7 @@ typedef struct {
*/
uint8_t* data;
} GpsNavigationMessage;
} GnssNavigationMessage;
/**
* The callback to report an available fragment of a GPS navigation messages from the HAL.
@ -1992,10 +2053,19 @@ typedef struct {
*/
typedef void (*gps_navigation_message_callback) (GpsNavigationMessage* message);
/**
* The callback to report an available fragment of a GPS navigation messages from the HAL.
*
* Parameters:
* message - The GPS navigation submessage/subframe representation.
*/
typedef void (*gnss_navigation_message_callback) (GnssNavigationMessage* message);
typedef struct {
/** set to sizeof(GpsNavigationMessageCallbacks) */
size_t size;
gps_navigation_message_callback navigation_message_callback;
gnss_navigation_message_callback gnss_navigation_message_callback;
} GpsNavigationMessageCallbacks;
#define GPS_NAVIGATION_MESSAGE_OPERATION_SUCCESS 0

99
include/hardware/gps_internal.h
View file

@ -26,18 +26,23 @@
__BEGIN_DECLS
/**
* Legacy struct to represent SV status.
* See GpsSvStatus_v2 for more information.
* Legacy GPS callback structure.
* Deprecated, to be removed in the next Android release.
* Use GpsCallbacks instead.
*/
typedef struct {
/** set to sizeof(GpsSvStatus_v1) */
/** set to sizeof(GpsCallbacks_v1) */
size_t size;
int num_svs;
GpsSvInfo sv_list[GPS_MAX_SVS];
uint32_t ephemeris_mask;
uint32_t almanac_mask;
uint32_t used_in_fix_mask;
} GpsSvStatus_v1;
gps_location_callback location_cb;
gps_status_callback status_cb;
gps_sv_status_callback sv_status_cb;
gps_nmea_callback nmea_cb;
gps_set_capabilities set_capabilities_cb;
gps_acquire_wakelock acquire_wakelock_cb;
gps_release_wakelock release_wakelock_cb;
gps_create_thread create_thread_cb;
gps_request_utc_time request_utc_time_cb;
} GpsCallbacks_v1;
#pragma pack(push,4)
// We need to keep the alignment of this data structure to 4-bytes, to ensure that in 64-bit
@ -86,82 +91,6 @@ typedef struct {
int (*set_server)( AGpsType type, const char* hostname, int port );
} AGpsInterface_v1;
/**
* Legacy struct to represent an estimate of the GPS clock time.
* See GpsClock_v2 for more details.
*/
typedef struct {
/** set to sizeof(GpsClock_v1) */
size_t size;
GpsClockFlags flags;
int16_t leap_second;
GpsClockType type;
int64_t time_ns;
double time_uncertainty_ns;
int64_t full_bias_ns;
double bias_ns;
double bias_uncertainty_ns;
double drift_nsps;
double drift_uncertainty_nsps;
} GpsClock_v1;
/**
* Legacy struct to represent a GPS Measurement, it contains raw and computed
* information.
* See GpsMeasurement_v2 for more details.
*/
typedef struct {
/** set to sizeof(GpsMeasurement_v1) */
size_t size;
GpsMeasurementFlags flags;
int8_t prn;
double time_offset_ns;
GpsMeasurementState state;
int64_t received_gps_tow_ns;
int64_t received_gps_tow_uncertainty_ns;
double c_n0_dbhz;
double pseudorange_rate_mps;
double pseudorange_rate_uncertainty_mps;
GpsAccumulatedDeltaRangeState accumulated_delta_range_state;
double accumulated_delta_range_m;
double accumulated_delta_range_uncertainty_m;
double pseudorange_m;
double pseudorange_uncertainty_m;
double code_phase_chips;
double code_phase_uncertainty_chips;
float carrier_frequency_hz;
int64_t carrier_cycles;
double carrier_phase;
double carrier_phase_uncertainty;
GpsLossOfLock loss_of_lock;
int32_t bit_number;
int16_t time_from_last_bit_ms;
double doppler_shift_hz;
double doppler_shift_uncertainty_hz;
GpsMultipathIndicator multipath_indicator;
double snr_db;
double elevation_deg;
double elevation_uncertainty_deg;
double azimuth_deg;
double azimuth_uncertainty_deg;
bool used_in_fix;
} GpsMeasurement_v1;
/** Represents a reading of GPS measurements. */
typedef struct {
/** set to sizeof(GpsData_v1) */
size_t size;
/** Number of measurements. */
size_t measurement_count;
/** The array of measurements. */
GpsMeasurement_v1 measurements[GPS_MAX_MEASUREMENT];
/** The GPS clock time reading. */
GpsClock_v1 clock;
} GpsData_v1;
__END_DECLS
#endif /* ANDROID_INCLUDE_HARDWARE_GPS_INTERNAL_H */