1759 lines
61 KiB
C
1759 lines
61 KiB
C
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_INCLUDE_HARDWARE_GPS_H
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#define ANDROID_INCLUDE_HARDWARE_GPS_H
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#include <stdint.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <pthread.h>
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#include <sys/socket.h>
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#include <stdbool.h>
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#include <hardware/hardware.h>
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__BEGIN_DECLS
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/**
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* The id of this module
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*/
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#define GPS_HARDWARE_MODULE_ID "gps"
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/** Milliseconds since January 1, 1970 */
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typedef int64_t GpsUtcTime;
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/** Maximum number of SVs for gps_sv_status_callback(). */
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#define GPS_MAX_SVS 32
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/** Maximum number of Measurements in gps_measurement_callback(). */
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#define GPS_MAX_MEASUREMENT 32
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/** Requested operational mode for GPS operation. */
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typedef uint32_t GpsPositionMode;
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// IMPORTANT: Note that the following values must match
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// constants in GpsLocationProvider.java.
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/** Mode for running GPS standalone (no assistance). */
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#define GPS_POSITION_MODE_STANDALONE 0
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/** AGPS MS-Based mode. */
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#define GPS_POSITION_MODE_MS_BASED 1
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/** AGPS MS-Assisted mode. */
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#define GPS_POSITION_MODE_MS_ASSISTED 2
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/** Requested recurrence mode for GPS operation. */
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typedef uint32_t GpsPositionRecurrence;
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// IMPORTANT: Note that the following values must match
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// constants in GpsLocationProvider.java.
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/** Receive GPS fixes on a recurring basis at a specified period. */
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#define GPS_POSITION_RECURRENCE_PERIODIC 0
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/** Request a single shot GPS fix. */
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#define GPS_POSITION_RECURRENCE_SINGLE 1
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/** GPS status event values. */
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typedef uint16_t GpsStatusValue;
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// IMPORTANT: Note that the following values must match
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// constants in GpsLocationProvider.java.
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/** GPS status unknown. */
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#define GPS_STATUS_NONE 0
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/** GPS has begun navigating. */
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#define GPS_STATUS_SESSION_BEGIN 1
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/** GPS has stopped navigating. */
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#define GPS_STATUS_SESSION_END 2
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/** GPS has powered on but is not navigating. */
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#define GPS_STATUS_ENGINE_ON 3
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/** GPS is powered off. */
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#define GPS_STATUS_ENGINE_OFF 4
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/** Flags to indicate which values are valid in a GpsLocation. */
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typedef uint16_t GpsLocationFlags;
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// IMPORTANT: Note that the following values must match
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// constants in GpsLocationProvider.java.
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/** GpsLocation has valid latitude and longitude. */
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#define GPS_LOCATION_HAS_LAT_LONG 0x0001
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/** GpsLocation has valid altitude. */
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#define GPS_LOCATION_HAS_ALTITUDE 0x0002
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/** GpsLocation has valid speed. */
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#define GPS_LOCATION_HAS_SPEED 0x0004
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/** GpsLocation has valid bearing. */
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#define GPS_LOCATION_HAS_BEARING 0x0008
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/** GpsLocation has valid accuracy. */
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#define GPS_LOCATION_HAS_ACCURACY 0x0010
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/** Flags for the gps_set_capabilities callback. */
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/** GPS HAL schedules fixes for GPS_POSITION_RECURRENCE_PERIODIC mode.
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If this is not set, then the framework will use 1000ms for min_interval
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and will start and call start() and stop() to schedule the GPS.
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*/
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#define GPS_CAPABILITY_SCHEDULING 0x0000001
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/** GPS supports MS-Based AGPS mode */
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#define GPS_CAPABILITY_MSB 0x0000002
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/** GPS supports MS-Assisted AGPS mode */
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#define GPS_CAPABILITY_MSA 0x0000004
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/** GPS supports single-shot fixes */
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#define GPS_CAPABILITY_SINGLE_SHOT 0x0000008
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/** GPS supports on demand time injection */
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#define GPS_CAPABILITY_ON_DEMAND_TIME 0x0000010
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/** GPS supports Geofencing */
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#define GPS_CAPABILITY_GEOFENCING 0x0000020
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/** Flags used to specify which aiding data to delete
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when calling delete_aiding_data(). */
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typedef uint16_t GpsAidingData;
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// IMPORTANT: Note that the following values must match
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// constants in GpsLocationProvider.java.
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#define GPS_DELETE_EPHEMERIS 0x0001
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#define GPS_DELETE_ALMANAC 0x0002
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#define GPS_DELETE_POSITION 0x0004
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#define GPS_DELETE_TIME 0x0008
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#define GPS_DELETE_IONO 0x0010
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#define GPS_DELETE_UTC 0x0020
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#define GPS_DELETE_HEALTH 0x0040
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#define GPS_DELETE_SVDIR 0x0080
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#define GPS_DELETE_SVSTEER 0x0100
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#define GPS_DELETE_SADATA 0x0200
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#define GPS_DELETE_RTI 0x0400
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#define GPS_DELETE_CELLDB_INFO 0x8000
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#define GPS_DELETE_ALL 0xFFFF
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/** AGPS type */
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typedef uint16_t AGpsType;
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#define AGPS_TYPE_SUPL 1
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#define AGPS_TYPE_C2K 2
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typedef uint16_t AGpsSetIDType;
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#define AGPS_SETID_TYPE_NONE 0
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#define AGPS_SETID_TYPE_IMSI 1
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#define AGPS_SETID_TYPE_MSISDN 2
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typedef uint16_t ApnIpType;
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#define APN_IP_INVALID 0
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#define APN_IP_IPV4 1
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#define APN_IP_IPV6 2
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#define APN_IP_IPV4V6 3
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/**
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* String length constants
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*/
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#define GPS_NI_SHORT_STRING_MAXLEN 256
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#define GPS_NI_LONG_STRING_MAXLEN 2048
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/**
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* GpsNiType constants
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*/
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typedef uint32_t GpsNiType;
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#define GPS_NI_TYPE_VOICE 1
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#define GPS_NI_TYPE_UMTS_SUPL 2
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#define GPS_NI_TYPE_UMTS_CTRL_PLANE 3
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/**
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* GpsNiNotifyFlags constants
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*/
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typedef uint32_t GpsNiNotifyFlags;
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/** NI requires notification */
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#define GPS_NI_NEED_NOTIFY 0x0001
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/** NI requires verification */
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#define GPS_NI_NEED_VERIFY 0x0002
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/** NI requires privacy override, no notification/minimal trace */
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#define GPS_NI_PRIVACY_OVERRIDE 0x0004
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/**
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* GPS NI responses, used to define the response in
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* NI structures
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*/
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typedef int GpsUserResponseType;
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#define GPS_NI_RESPONSE_ACCEPT 1
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#define GPS_NI_RESPONSE_DENY 2
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#define GPS_NI_RESPONSE_NORESP 3
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/**
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* NI data encoding scheme
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*/
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typedef int GpsNiEncodingType;
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#define GPS_ENC_NONE 0
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#define GPS_ENC_SUPL_GSM_DEFAULT 1
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#define GPS_ENC_SUPL_UTF8 2
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#define GPS_ENC_SUPL_UCS2 3
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#define GPS_ENC_UNKNOWN -1
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/** AGPS status event values. */
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typedef uint16_t AGpsStatusValue;
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/** GPS requests data connection for AGPS. */
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#define GPS_REQUEST_AGPS_DATA_CONN 1
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/** GPS releases the AGPS data connection. */
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#define GPS_RELEASE_AGPS_DATA_CONN 2
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/** AGPS data connection initiated */
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#define GPS_AGPS_DATA_CONNECTED 3
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/** AGPS data connection completed */
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#define GPS_AGPS_DATA_CONN_DONE 4
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/** AGPS data connection failed */
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#define GPS_AGPS_DATA_CONN_FAILED 5
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#define AGPS_REF_LOCATION_TYPE_GSM_CELLID 1
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#define AGPS_REF_LOCATION_TYPE_UMTS_CELLID 2
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#define AGPS_REG_LOCATION_TYPE_MAC 3
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/** Network types for update_network_state "type" parameter */
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#define AGPS_RIL_NETWORK_TYPE_MOBILE 0
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#define AGPS_RIL_NETWORK_TYPE_WIFI 1
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#define AGPS_RIL_NETWORK_TYPE_MOBILE_MMS 2
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#define AGPS_RIL_NETWORK_TYPE_MOBILE_SUPL 3
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#define AGPS_RIL_NETWORK_TTYPE_MOBILE_DUN 4
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#define AGPS_RIL_NETWORK_TTYPE_MOBILE_HIPRI 5
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#define AGPS_RIL_NETWORK_TTYPE_WIMAX 6
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/**
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* Flags to indicate what fields in GpsClock are valid.
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*/
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typedef uint16_t GpsClockFlags;
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/** A valid 'leap second' is stored in the data structure. */
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#define GPS_CLOCK_HAS_LEAP_SECOND (1<<0)
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/** A valid 'time uncertainty' is stored in the data structure. */
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#define GPS_CLOCK_HAS_TIME_UNCERTAINTY (1<<1)
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/** A valid 'full bias' is stored in the data structure. */
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#define GPS_CLOCK_HAS_FULL_BIAS (1<<2)
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/** A valid 'bias' is stored in the data structure. */
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#define GPS_CLOCK_HAS_BIAS (1<<3)
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/** A valid 'bias uncertainty' is stored in the data structure. */
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#define GPS_CLOCK_HAS_BIAS_UNCERTAINTY (1<<4)
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/** A valid 'drift' is stored in the data structure. */
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#define GPS_CLOCK_HAS_DRIFT (1<<5)
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/** A valid 'drift uncertainty' is stored in the data structure. */
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#define GPS_CLOCK_HAS_DRIFT_UNCERTAINTY (1<<6)
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/**
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* Enumeration of the available values for the GPS Clock type.
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*/
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typedef uint8_t GpsClockType;
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/** The type is not available ot it is unknown. */
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#define GPS_CLOCK_TYPE_UNKNOWN 0
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/** The source of the time value reported by GPS clock is the local hardware clock. */
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#define GPS_CLOCK_TYPE_LOCAL_HW_TIME 1
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/**
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* The source of the time value reported by GPS clock is the GPS time derived from satellites
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* (epoch = Jan 6, 1980)
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*/
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#define GPS_CLOCK_TYPE_GPS_TIME 2
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/**
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* Flags to indicate what fields in GpsMeasurement are valid.
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*/
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typedef uint32_t GpsMeasurementFlags;
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/** A valid 'snr' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_SNR (1<<0)
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/** A valid 'elevation' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_ELEVATION (1<<1)
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/** A valid 'elevation uncertainty' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_ELEVATION_UNCERTAINTY (1<<2)
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/** A valid 'azimuth' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_AZIMUTH (1<<3)
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/** A valid 'azimuth uncertainty' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_AZIMUTH_UNCERTAINTY (1<<4)
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/** A valid 'pseudorange' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_PSEUDORANGE (1<<5)
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/** A valid 'pseudorange uncertainty' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_PSEUDORANGE_UNCERTAINTY (1<<6)
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/** A valid 'code phase' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_CODE_PHASE (1<<7)
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/** A valid 'code phase uncertainty' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_CODE_PHASE_UNCERTAINTY (1<<8)
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/** A valid 'carrier frequency' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_CARRIER_FREQUENCY (1<<9)
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/** A valid 'carrier cycles' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_CARRIER_CYCLES (1<<10)
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/** A valid 'carrier phase' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_CARRIER_PHASE (1<<11)
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/** A valid 'carrier phase uncertainty' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_CARRIER_PHASE_UNCERTAINTY (1<<12)
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/** A valid 'bit number' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_BIT_NUMBER (1<<13)
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/** A valid 'time from last bit' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_TIME_FROM_LAST_BIT (1<<14)
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/** A valid 'doppler shift' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_DOPPLER_SHIFT (1<<15)
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/** A valid 'doppler shift uncertainty' is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_DOPPLER_SHIFT_UNCERTAINTY (1<<16)
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/** A valid 'used in fix' flag is stored in the data structure. */
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#define GPS_MEASUREMENT_HAS_USED_IN_FIX (1<<17)
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/**
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* Enumeration of the available values for the GPS Measurement's loss of lock.
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*/
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typedef uint8_t GpsLossOfLock;
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/** The indicator is not available or it is unknown. */
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#define GPS_LOSS_OF_LOCK_UNKNOWN 0
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/** The measurement does not present any indication of loss of lock. */
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#define GPS_LOSS_OF_LOCK_OK 1
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/** Loss of lock between previous and current observation: cycle slip possible. */
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#define GPS_LOSS_OF_LOCK_CYCLE_SLIP 2
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/**
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* Enumeration of available values for the GPS Measurement's multipath indicator.
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*/
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typedef uint8_t GpsMultipathIndicator;
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/** The indicator is not available or unknown. */
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#define GPS_MULTIPATH_INDICATOR_UNKNOWN 0
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/** The measurement has been indicated to use multipath. */
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#define GPS_MULTIPATH_INDICATOR_DETECTED 1
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/** The measurement has been indicated Not to use multipath. */
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#define GPS_MULTIPATH_INDICATOR_NOT_USED 2
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/**
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* Flags indicating the GPS measurement state.
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*/
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typedef uint16_t GpsMeasurementState;
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#define GPS_MEASUREMENT_STATE_UNKNOWN 0
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#define GPS_MEASUREMENT_STATE_CODE_LOCK (1<<0)
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#define GPS_MEASUREMENT_STATE_BIT_SYNC (1<<1)
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#define GPS_MEASUREMENT_STATE_SUBFRAME_SYNC (1<<2)
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#define GPS_MEASUREMENT_STATE_TOW_DECODED (1<<3)
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/**
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* Flags indicating the Accumulated Delta Range's states.
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*/
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typedef uint16_t GpsAccumulatedDeltaRangeState;
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#define GPS_ADR_STATE_UNKNOWN 0
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#define GPS_ADR_STATE_VALID (1<<0)
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#define GPS_ADR_STATE_RESET (1<<1)
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#define GPS_ADR_STATE_CYCLE_SLIP (1<<2)
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/**
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* Enumeration of available values to indicate the available GPS Natigation message types.
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*/
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typedef uint8_t GpsNavigationMessageType;
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/** The message type is unknown. */
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#define GPS_NAVIGATION_MESSAGE_TYPE_UNKNOWN 0
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/** L1 C/A message contained in the structure. */
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#define GPS_NAVIGATION_MESSAGE_TYPE_L1CA 1
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/** L2-CNAV message contained in the structure. */
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#define GPS_NAVIGATION_MESSAGE_TYPE_L2CNAV 2
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/** L5-CNAV message contained in the structure. */
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#define GPS_NAVIGATION_MESSAGE_TYPE_L5CNAV 3
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/** CNAV-2 message contained in the structure. */
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#define GPS_NAVIGATION_MESSAGE_TYPE_CNAV2 4
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/**
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* Name for the GPS XTRA interface.
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*/
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#define GPS_XTRA_INTERFACE "gps-xtra"
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/**
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* Name for the GPS DEBUG interface.
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*/
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#define GPS_DEBUG_INTERFACE "gps-debug"
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/**
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* Name for the AGPS interface.
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*/
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#define AGPS_INTERFACE "agps"
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/**
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* Name of the Supl Certificate interface.
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*/
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#define SUPL_CERTIFICATE_INTERFACE "supl-certificate"
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/**
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* Name for NI interface
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*/
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#define GPS_NI_INTERFACE "gps-ni"
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/**
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* Name for the AGPS-RIL interface.
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*/
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#define AGPS_RIL_INTERFACE "agps_ril"
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/**
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* Name for the GPS_Geofencing interface.
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*/
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#define GPS_GEOFENCING_INTERFACE "gps_geofencing"
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/**
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* Name of the GPS Measurements interface.
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*/
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#define GPS_MEASUREMENT_INTERFACE "gps_measurement"
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/**
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* Name of the GPS navigation message interface.
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*/
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#define GPS_NAVIGATION_MESSAGE_INTERFACE "gps_navigation_message"
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/** Represents a location. */
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typedef struct {
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/** set to sizeof(GpsLocation) */
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size_t size;
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/** Contains GpsLocationFlags bits. */
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uint16_t flags;
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/** Represents latitude in degrees. */
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double latitude;
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/** Represents longitude in degrees. */
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double longitude;
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/** Represents altitude in meters above the WGS 84 reference
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* ellipsoid. */
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double altitude;
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/** Represents speed in meters per second. */
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float speed;
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/** Represents heading in degrees. */
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float bearing;
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/** Represents expected accuracy in meters. */
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float accuracy;
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/** Timestamp for the location fix. */
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GpsUtcTime timestamp;
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} GpsLocation;
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/** Represents the status. */
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typedef struct {
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/** set to sizeof(GpsStatus) */
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size_t size;
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GpsStatusValue status;
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} GpsStatus;
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/** Represents SV information. */
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typedef struct {
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/** set to sizeof(GpsSvInfo) */
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size_t size;
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/** Pseudo-random number for the SV. */
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int prn;
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/** Signal to noise ratio. */
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float snr;
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/** Elevation of SV in degrees. */
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float elevation;
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/** Azimuth of SV in degrees. */
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float azimuth;
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} GpsSvInfo;
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/** Represents SV status. */
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typedef struct {
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/** set to sizeof(GpsSvStatus) */
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size_t size;
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/** Number of SVs currently visible. */
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int num_svs;
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/** Contains an array of SV information. */
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GpsSvInfo sv_list[GPS_MAX_SVS];
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/** Represents a bit mask indicating which SVs
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* have ephemeris data.
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*/
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uint32_t ephemeris_mask;
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/** Represents a bit mask indicating which SVs
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* have almanac data.
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*/
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uint32_t almanac_mask;
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/**
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* Represents a bit mask indicating which SVs
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* were used for computing the most recent position fix.
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*/
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uint32_t used_in_fix_mask;
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} GpsSvStatus;
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/* 2G and 3G */
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/* In 3G lac is discarded */
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typedef struct {
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uint16_t type;
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uint16_t mcc;
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uint16_t mnc;
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uint16_t lac;
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|
uint32_t cid;
|
|
} AGpsRefLocationCellID;
|
|
|
|
typedef struct {
|
|
uint8_t mac[6];
|
|
} AGpsRefLocationMac;
|
|
|
|
/** Represents ref locations */
|
|
typedef struct {
|
|
uint16_t type;
|
|
union {
|
|
AGpsRefLocationCellID cellID;
|
|
AGpsRefLocationMac mac;
|
|
} u;
|
|
} AGpsRefLocation;
|
|
|
|
/** Callback with location information.
|
|
* Can only be called from a thread created by create_thread_cb.
|
|
*/
|
|
typedef void (* gps_location_callback)(GpsLocation* location);
|
|
|
|
/** Callback with status information.
|
|
* Can only be called from a thread created by create_thread_cb.
|
|
*/
|
|
typedef void (* gps_status_callback)(GpsStatus* status);
|
|
|
|
/**
|
|
* Callback with SV status information.
|
|
* Can only be called from a thread created by create_thread_cb.
|
|
*/
|
|
typedef void (* gps_sv_status_callback)(GpsSvStatus* sv_info);
|
|
|
|
/** Callback for reporting NMEA sentences.
|
|
* Can only be called from a thread created by create_thread_cb.
|
|
*/
|
|
typedef void (* gps_nmea_callback)(GpsUtcTime timestamp, const char* nmea, int length);
|
|
|
|
/** Callback to inform framework of the GPS engine's capabilities.
|
|
* Capability parameter is a bit field of GPS_CAPABILITY_* flags.
|
|
*/
|
|
typedef void (* gps_set_capabilities)(uint32_t capabilities);
|
|
|
|
/** Callback utility for acquiring the GPS wakelock.
|
|
* This can be used to prevent the CPU from suspending while handling GPS events.
|
|
*/
|
|
typedef void (* gps_acquire_wakelock)();
|
|
|
|
/** Callback utility for releasing the GPS wakelock. */
|
|
typedef void (* gps_release_wakelock)();
|
|
|
|
/** Callback for requesting NTP time */
|
|
typedef void (* gps_request_utc_time)();
|
|
|
|
/** Callback for creating a thread that can call into the Java framework code.
|
|
* This must be used to create any threads that report events up to the framework.
|
|
*/
|
|
typedef pthread_t (* gps_create_thread)(const char* name, void (*start)(void *), void* arg);
|
|
|
|
/** GPS callback structure. */
|
|
typedef struct {
|
|
/** set to sizeof(GpsCallbacks) */
|
|
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;
|
|
|
|
|
|
/** Represents the standard GPS interface. */
|
|
typedef struct {
|
|
/** set to sizeof(GpsInterface) */
|
|
size_t size;
|
|
/**
|
|
* Opens the interface and provides the callback routines
|
|
* to the implementation of this interface.
|
|
*/
|
|
int (*init)( GpsCallbacks* callbacks );
|
|
|
|
/** Starts navigating. */
|
|
int (*start)( void );
|
|
|
|
/** Stops navigating. */
|
|
int (*stop)( void );
|
|
|
|
/** Closes the interface. */
|
|
void (*cleanup)( void );
|
|
|
|
/** Injects the current time. */
|
|
int (*inject_time)(GpsUtcTime time, int64_t timeReference,
|
|
int uncertainty);
|
|
|
|
/** Injects current location from another location provider
|
|
* (typically cell ID).
|
|
* latitude and longitude are measured in degrees
|
|
* expected accuracy is measured in meters
|
|
*/
|
|
int (*inject_location)(double latitude, double longitude, float accuracy);
|
|
|
|
/**
|
|
* Specifies that the next call to start will not use the
|
|
* information defined in the flags. GPS_DELETE_ALL is passed for
|
|
* a cold start.
|
|
*/
|
|
void (*delete_aiding_data)(GpsAidingData flags);
|
|
|
|
/**
|
|
* min_interval represents the time between fixes in milliseconds.
|
|
* preferred_accuracy represents the requested fix accuracy in meters.
|
|
* preferred_time represents the requested time to first fix in milliseconds.
|
|
*/
|
|
int (*set_position_mode)(GpsPositionMode mode, GpsPositionRecurrence recurrence,
|
|
uint32_t min_interval, uint32_t preferred_accuracy, uint32_t preferred_time);
|
|
|
|
/** Get a pointer to extension information. */
|
|
const void* (*get_extension)(const char* name);
|
|
} GpsInterface;
|
|
|
|
/** Callback to request the client to download XTRA data.
|
|
* The client should download XTRA data and inject it by calling inject_xtra_data().
|
|
* Can only be called from a thread created by create_thread_cb.
|
|
*/
|
|
typedef void (* gps_xtra_download_request)();
|
|
|
|
/** Callback structure for the XTRA interface. */
|
|
typedef struct {
|
|
gps_xtra_download_request download_request_cb;
|
|
gps_create_thread create_thread_cb;
|
|
} GpsXtraCallbacks;
|
|
|
|
/** Extended interface for XTRA support. */
|
|
typedef struct {
|
|
/** set to sizeof(GpsXtraInterface) */
|
|
size_t size;
|
|
/**
|
|
* Opens the XTRA interface and provides the callback routines
|
|
* to the implementation of this interface.
|
|
*/
|
|
int (*init)( GpsXtraCallbacks* callbacks );
|
|
/** Injects XTRA data into the GPS. */
|
|
int (*inject_xtra_data)( char* data, int length );
|
|
} GpsXtraInterface;
|
|
|
|
/** Extended interface for DEBUG support. */
|
|
typedef struct {
|
|
/** set to sizeof(GpsDebugInterface) */
|
|
size_t size;
|
|
|
|
/**
|
|
* This function should return any information that the native
|
|
* implementation wishes to include in a bugreport.
|
|
*/
|
|
size_t (*get_internal_state)(char* buffer, size_t bufferSize);
|
|
} GpsDebugInterface;
|
|
|
|
/** Represents the status of AGPS. */
|
|
typedef struct {
|
|
/** set to sizeof(AGpsStatus_v1) */
|
|
size_t size;
|
|
|
|
AGpsType type;
|
|
AGpsStatusValue status;
|
|
} AGpsStatus_v1;
|
|
|
|
/** Represents the status of AGPS augmented with a IPv4 address field. */
|
|
typedef struct {
|
|
/** set to sizeof(AGpsStatus_v2) */
|
|
size_t size;
|
|
|
|
AGpsType type;
|
|
AGpsStatusValue status;
|
|
uint32_t ipaddr;
|
|
} AGpsStatus_v2;
|
|
|
|
/* Represents the status of AGPS augmented to support IPv4 and IPv6. */
|
|
typedef struct {
|
|
/** set to sizeof(AGpsStatus_v3) */
|
|
size_t size;
|
|
|
|
AGpsType type;
|
|
AGpsStatusValue status;
|
|
|
|
/**
|
|
* Must be set to a valid IPv4 address if the field 'addr' contains an IPv4
|
|
* address, or set to INADDR_NONE otherwise.
|
|
*/
|
|
uint32_t ipaddr;
|
|
|
|
/**
|
|
* Must contain the IPv4 (AF_INET) or IPv6 (AF_INET6) address to report.
|
|
* Any other value of addr.ss_family will be rejected.
|
|
* */
|
|
struct sockaddr_storage addr;
|
|
} AGpsStatus_v3;
|
|
|
|
typedef AGpsStatus_v3 AGpsStatus;
|
|
|
|
/** Callback with AGPS status information.
|
|
* Can only be called from a thread created by create_thread_cb.
|
|
*/
|
|
typedef void (* agps_status_callback)(AGpsStatus* status);
|
|
|
|
/** Callback structure for the AGPS interface. */
|
|
typedef struct {
|
|
agps_status_callback status_cb;
|
|
gps_create_thread create_thread_cb;
|
|
} AGpsCallbacks;
|
|
|
|
|
|
/** Extended interface for AGPS support. */
|
|
typedef struct {
|
|
/** set to sizeof(AGpsInterface_v1) */
|
|
size_t size;
|
|
|
|
/**
|
|
* Opens the AGPS interface and provides the callback routines
|
|
* to the implementation of this interface.
|
|
*/
|
|
void (*init)( AGpsCallbacks* callbacks );
|
|
/**
|
|
* Notifies that a data connection is available and sets
|
|
* the name of the APN to be used for SUPL.
|
|
*/
|
|
int (*data_conn_open)( const char* apn );
|
|
/**
|
|
* Notifies that the AGPS data connection has been closed.
|
|
*/
|
|
int (*data_conn_closed)();
|
|
/**
|
|
* Notifies that a data connection is not available for AGPS.
|
|
*/
|
|
int (*data_conn_failed)();
|
|
/**
|
|
* Sets the hostname and port for the AGPS server.
|
|
*/
|
|
int (*set_server)( AGpsType type, const char* hostname, int port );
|
|
} AGpsInterface_v1;
|
|
|
|
/**
|
|
* Extended interface for AGPS support, it is augmented to enable to pass
|
|
* extra APN data.
|
|
*/
|
|
typedef struct {
|
|
/** set to sizeof(AGpsInterface_v2) */
|
|
size_t size;
|
|
|
|
/**
|
|
* Opens the AGPS interface and provides the callback routines to the
|
|
* implementation of this interface.
|
|
*/
|
|
void (*init)(AGpsCallbacks* callbacks);
|
|
/**
|
|
* Deprecated.
|
|
* If the HAL supports AGpsInterface_v2 this API will not be used, see
|
|
* data_conn_open_with_apn_ip_type for more information.
|
|
*/
|
|
int (*data_conn_open)(const char* apn);
|
|
/**
|
|
* Notifies that the AGPS data connection has been closed.
|
|
*/
|
|
int (*data_conn_closed)();
|
|
/**
|
|
* Notifies that a data connection is not available for AGPS.
|
|
*/
|
|
int (*data_conn_failed)();
|
|
/**
|
|
* Sets the hostname and port for the AGPS server.
|
|
*/
|
|
int (*set_server)(AGpsType type, const char* hostname, int port);
|
|
|
|
/**
|
|
* Notifies that a data connection is available and sets the name of the
|
|
* APN, and its IP type, to be used for SUPL connections.
|
|
*/
|
|
int (*data_conn_open_with_apn_ip_type)(
|
|
const char* apn,
|
|
ApnIpType apnIpType);
|
|
} AGpsInterface_v2;
|
|
|
|
typedef AGpsInterface_v2 AGpsInterface;
|
|
|
|
/** Error codes associated with certificate operations */
|
|
#define AGPS_CERTIFICATE_OPERATION_SUCCESS 0
|
|
#define AGPS_CERTIFICATE_ERROR_GENERIC -100
|
|
#define AGPS_CERTIFICATE_ERROR_TOO_MANY_CERTIFICATES -101
|
|
|
|
/** A data structure that represents an X.509 certificate using DER encoding */
|
|
typedef struct {
|
|
size_t length;
|
|
u_char* data;
|
|
} DerEncodedCertificate;
|
|
|
|
/**
|
|
* A type definition for SHA1 Fingerprints used to identify X.509 Certificates
|
|
* The Fingerprint is a digest of the DER Certificate that uniquely identifies it.
|
|
*/
|
|
typedef struct {
|
|
u_char data[20];
|
|
} Sha1CertificateFingerprint;
|
|
|
|
/** AGPS Interface to handle SUPL certificate operations */
|
|
typedef struct {
|
|
/** set to sizeof(SuplCertificateInterface) */
|
|
size_t size;
|
|
|
|
/**
|
|
* Installs a set of Certificates used for SUPL connections to the AGPS server.
|
|
* If needed the HAL should find out internally any certificates that need to be removed to
|
|
* accommodate the certificates to install.
|
|
* The certificates installed represent a full set of valid certificates needed to connect to
|
|
* AGPS SUPL servers.
|
|
* The list of certificates is required, and all must be available at the same time, when trying
|
|
* to establish a connection with the AGPS Server.
|
|
*
|
|
* Parameters:
|
|
* certificates - A pointer to an array of DER encoded certificates that are need to be
|
|
* installed in the HAL.
|
|
* length - The number of certificates to install.
|
|
* Returns:
|
|
* AGPS_CERTIFICATE_OPERATION_SUCCESS if the operation is completed successfully
|
|
* AGPS_CERTIFICATE_ERROR_TOO_MANY_CERTIFICATES if the HAL cannot store the number of
|
|
* certificates attempted to be installed, the state of the certificates stored should
|
|
* remain the same as before on this error case.
|
|
*
|
|
* IMPORTANT:
|
|
* If needed the HAL should find out internally the set of certificates that need to be
|
|
* removed to accommodate the certificates to install.
|
|
*/
|
|
int (*install_certificates) ( const DerEncodedCertificate* certificates, size_t length );
|
|
|
|
/**
|
|
* Notifies the HAL that a list of certificates used for SUPL connections are revoked. It is
|
|
* expected that the given set of certificates is removed from the internal store of the HAL.
|
|
*
|
|
* Parameters:
|
|
* fingerprints - A pointer to an array of SHA1 Fingerprints to identify the set of
|
|
* certificates to revoke.
|
|
* length - The number of fingerprints provided.
|
|
* Returns:
|
|
* AGPS_CERTIFICATE_OPERATION_SUCCESS if the operation is completed successfully.
|
|
*
|
|
* IMPORTANT:
|
|
* If any of the certificates provided (through its fingerprint) is not known by the HAL,
|
|
* it should be ignored and continue revoking/deleting the rest of them.
|
|
*/
|
|
int (*revoke_certificates) ( const Sha1CertificateFingerprint* fingerprints, size_t length );
|
|
} SuplCertificateInterface;
|
|
|
|
/** Represents an NI request */
|
|
typedef struct {
|
|
/** set to sizeof(GpsNiNotification) */
|
|
size_t size;
|
|
|
|
/**
|
|
* An ID generated by HAL to associate NI notifications and UI
|
|
* responses
|
|
*/
|
|
int notification_id;
|
|
|
|
/**
|
|
* An NI type used to distinguish different categories of NI
|
|
* events, such as GPS_NI_TYPE_VOICE, GPS_NI_TYPE_UMTS_SUPL, ...
|
|
*/
|
|
GpsNiType ni_type;
|
|
|
|
/**
|
|
* Notification/verification options, combinations of GpsNiNotifyFlags constants
|
|
*/
|
|
GpsNiNotifyFlags notify_flags;
|
|
|
|
/**
|
|
* Timeout period to wait for user response.
|
|
* Set to 0 for no time out limit.
|
|
*/
|
|
int timeout;
|
|
|
|
/**
|
|
* Default response when time out.
|
|
*/
|
|
GpsUserResponseType default_response;
|
|
|
|
/**
|
|
* Requestor ID
|
|
*/
|
|
char requestor_id[GPS_NI_SHORT_STRING_MAXLEN];
|
|
|
|
/**
|
|
* Notification message. It can also be used to store client_id in some cases
|
|
*/
|
|
char text[GPS_NI_LONG_STRING_MAXLEN];
|
|
|
|
/**
|
|
* Client name decoding scheme
|
|
*/
|
|
GpsNiEncodingType requestor_id_encoding;
|
|
|
|
/**
|
|
* Client name decoding scheme
|
|
*/
|
|
GpsNiEncodingType text_encoding;
|
|
|
|
/**
|
|
* A pointer to extra data. Format:
|
|
* key_1 = value_1
|
|
* key_2 = value_2
|
|
*/
|
|
char extras[GPS_NI_LONG_STRING_MAXLEN];
|
|
|
|
} GpsNiNotification;
|
|
|
|
/** Callback with NI notification.
|
|
* Can only be called from a thread created by create_thread_cb.
|
|
*/
|
|
typedef void (*gps_ni_notify_callback)(GpsNiNotification *notification);
|
|
|
|
/** GPS NI callback structure. */
|
|
typedef struct
|
|
{
|
|
/**
|
|
* Sends the notification request from HAL to GPSLocationProvider.
|
|
*/
|
|
gps_ni_notify_callback notify_cb;
|
|
gps_create_thread create_thread_cb;
|
|
} GpsNiCallbacks;
|
|
|
|
/**
|
|
* Extended interface for Network-initiated (NI) support.
|
|
*/
|
|
typedef struct
|
|
{
|
|
/** set to sizeof(GpsNiInterface) */
|
|
size_t size;
|
|
|
|
/** Registers the callbacks for HAL to use. */
|
|
void (*init) (GpsNiCallbacks *callbacks);
|
|
|
|
/** Sends a response to HAL. */
|
|
void (*respond) (int notif_id, GpsUserResponseType user_response);
|
|
} GpsNiInterface;
|
|
|
|
struct gps_device_t {
|
|
struct hw_device_t common;
|
|
|
|
/**
|
|
* Set the provided lights to the provided values.
|
|
*
|
|
* Returns: 0 on succes, error code on failure.
|
|
*/
|
|
const GpsInterface* (*get_gps_interface)(struct gps_device_t* dev);
|
|
};
|
|
|
|
#define AGPS_RIL_REQUEST_SETID_IMSI (1<<0L)
|
|
#define AGPS_RIL_REQUEST_SETID_MSISDN (1<<1L)
|
|
|
|
#define AGPS_RIL_REQUEST_REFLOC_CELLID (1<<0L)
|
|
#define AGPS_RIL_REQUEST_REFLOC_MAC (1<<1L)
|
|
|
|
typedef void (*agps_ril_request_set_id)(uint32_t flags);
|
|
typedef void (*agps_ril_request_ref_loc)(uint32_t flags);
|
|
|
|
typedef struct {
|
|
agps_ril_request_set_id request_setid;
|
|
agps_ril_request_ref_loc request_refloc;
|
|
gps_create_thread create_thread_cb;
|
|
} AGpsRilCallbacks;
|
|
|
|
/** Extended interface for AGPS_RIL support. */
|
|
typedef struct {
|
|
/** set to sizeof(AGpsRilInterface) */
|
|
size_t size;
|
|
/**
|
|
* Opens the AGPS interface and provides the callback routines
|
|
* to the implementation of this interface.
|
|
*/
|
|
void (*init)( AGpsRilCallbacks* callbacks );
|
|
|
|
/**
|
|
* Sets the reference location.
|
|
*/
|
|
void (*set_ref_location) (const AGpsRefLocation *agps_reflocation, size_t sz_struct);
|
|
/**
|
|
* Sets the set ID.
|
|
*/
|
|
void (*set_set_id) (AGpsSetIDType type, const char* setid);
|
|
|
|
/**
|
|
* Send network initiated message.
|
|
*/
|
|
void (*ni_message) (uint8_t *msg, size_t len);
|
|
|
|
/**
|
|
* Notify GPS of network status changes.
|
|
* These parameters match values in the android.net.NetworkInfo class.
|
|
*/
|
|
void (*update_network_state) (int connected, int type, int roaming, const char* extra_info);
|
|
|
|
/**
|
|
* Notify GPS of network status changes.
|
|
* These parameters match values in the android.net.NetworkInfo class.
|
|
*/
|
|
void (*update_network_availability) (int avaiable, const char* apn);
|
|
} AGpsRilInterface;
|
|
|
|
/**
|
|
* GPS Geofence.
|
|
* There are 3 states associated with a Geofence: Inside, Outside, Unknown.
|
|
* There are 3 transitions: ENTERED, EXITED, UNCERTAIN.
|
|
*
|
|
* An example state diagram with confidence level: 95% and Unknown time limit
|
|
* set as 30 secs is shown below. (confidence level and Unknown time limit are
|
|
* explained latter)
|
|
* ____________________________
|
|
* | Unknown (30 secs) |
|
|
* """"""""""""""""""""""""""""
|
|
* ^ | | ^
|
|
* UNCERTAIN| |ENTERED EXITED| |UNCERTAIN
|
|
* | v v |
|
|
* ________ EXITED _________
|
|
* | Inside | -----------> | Outside |
|
|
* | | <----------- | |
|
|
* """""""" ENTERED """""""""
|
|
*
|
|
* Inside state: We are 95% confident that the user is inside the geofence.
|
|
* Outside state: We are 95% confident that the user is outside the geofence
|
|
* Unknown state: Rest of the time.
|
|
*
|
|
* The Unknown state is better explained with an example:
|
|
*
|
|
* __________
|
|
* | c|
|
|
* | ___ | _______
|
|
* | |a| | | b |
|
|
* | """ | """""""
|
|
* | |
|
|
* """"""""""
|
|
* In the diagram above, "a" and "b" are 2 geofences and "c" is the accuracy
|
|
* circle reported by the GPS subsystem. Now with regard to "b", the system is
|
|
* confident that the user is outside. But with regard to "a" is not confident
|
|
* whether it is inside or outside the geofence. If the accuracy remains the
|
|
* same for a sufficient period of time, the UNCERTAIN transition would be
|
|
* triggered with the state set to Unknown. If the accuracy improves later, an
|
|
* appropriate transition should be triggered. This "sufficient period of time"
|
|
* is defined by the parameter in the add_geofence_area API.
|
|
* In other words, Unknown state can be interpreted as a state in which the
|
|
* GPS subsystem isn't confident enough that the user is either inside or
|
|
* outside the Geofence. It moves to Unknown state only after the expiry of the
|
|
* timeout.
|
|
*
|
|
* The geofence callback needs to be triggered for the ENTERED and EXITED
|
|
* transitions, when the GPS system is confident that the user has entered
|
|
* (Inside state) or exited (Outside state) the Geofence. An implementation
|
|
* which uses a value of 95% as the confidence is recommended. The callback
|
|
* should be triggered only for the transitions requested by the
|
|
* add_geofence_area call.
|
|
*
|
|
* Even though the diagram and explanation talks about states and transitions,
|
|
* the callee is only interested in the transistions. The states are mentioned
|
|
* here for illustrative purposes.
|
|
*
|
|
* Startup Scenario: When the device boots up, if an application adds geofences,
|
|
* and then we get an accurate GPS location fix, it needs to trigger the
|
|
* appropriate (ENTERED or EXITED) transition for every Geofence it knows about.
|
|
* By default, all the Geofences will be in the Unknown state.
|
|
*
|
|
* When the GPS system is unavailable, gps_geofence_status_callback should be
|
|
* called to inform the upper layers of the same. Similarly, when it becomes
|
|
* available the callback should be called. This is a global state while the
|
|
* UNKNOWN transition described above is per geofence.
|
|
*
|
|
* An important aspect to note is that users of this API (framework), will use
|
|
* other subsystems like wifi, sensors, cell to handle Unknown case and
|
|
* hopefully provide a definitive state transition to the third party
|
|
* application. GPS Geofence will just be a signal indicating what the GPS
|
|
* subsystem knows about the Geofence.
|
|
*
|
|
*/
|
|
#define GPS_GEOFENCE_ENTERED (1<<0L)
|
|
#define GPS_GEOFENCE_EXITED (1<<1L)
|
|
#define GPS_GEOFENCE_UNCERTAIN (1<<2L)
|
|
|
|
#define GPS_GEOFENCE_UNAVAILABLE (1<<0L)
|
|
#define GPS_GEOFENCE_AVAILABLE (1<<1L)
|
|
|
|
#define GPS_GEOFENCE_OPERATION_SUCCESS 0
|
|
#define GPS_GEOFENCE_ERROR_TOO_MANY_GEOFENCES -100
|
|
#define GPS_GEOFENCE_ERROR_ID_EXISTS -101
|
|
#define GPS_GEOFENCE_ERROR_ID_UNKNOWN -102
|
|
#define GPS_GEOFENCE_ERROR_INVALID_TRANSITION -103
|
|
#define GPS_GEOFENCE_ERROR_GENERIC -149
|
|
|
|
/**
|
|
* The callback associated with the geofence.
|
|
* Parameters:
|
|
* geofence_id - The id associated with the add_geofence_area.
|
|
* location - The current GPS location.
|
|
* transition - Can be one of GPS_GEOFENCE_ENTERED, GPS_GEOFENCE_EXITED,
|
|
* GPS_GEOFENCE_UNCERTAIN.
|
|
* timestamp - Timestamp when the transition was detected.
|
|
*
|
|
* The callback should only be called when the caller is interested in that
|
|
* particular transition. For instance, if the caller is interested only in
|
|
* ENTERED transition, then the callback should NOT be called with the EXITED
|
|
* transition.
|
|
*
|
|
* IMPORTANT: If a transition is triggered resulting in this callback, the GPS
|
|
* subsystem will wake up the application processor, if its in suspend state.
|
|
*/
|
|
typedef void (*gps_geofence_transition_callback) (int32_t geofence_id, GpsLocation* location,
|
|
int32_t transition, GpsUtcTime timestamp);
|
|
|
|
/**
|
|
* The callback associated with the availability of the GPS system for geofencing
|
|
* monitoring. If the GPS system determines that it cannot monitor geofences
|
|
* because of lack of reliability or unavailability of the GPS signals, it will
|
|
* call this callback with GPS_GEOFENCE_UNAVAILABLE parameter.
|
|
*
|
|
* Parameters:
|
|
* status - GPS_GEOFENCE_UNAVAILABLE or GPS_GEOFENCE_AVAILABLE.
|
|
* last_location - Last known location.
|
|
*/
|
|
typedef void (*gps_geofence_status_callback) (int32_t status, GpsLocation* last_location);
|
|
|
|
/**
|
|
* The callback associated with the add_geofence call.
|
|
*
|
|
* Parameter:
|
|
* geofence_id - Id of the geofence.
|
|
* status - GPS_GEOFENCE_OPERATION_SUCCESS
|
|
* GPS_GEOFENCE_ERROR_TOO_MANY_GEOFENCES - geofence limit has been reached.
|
|
* GPS_GEOFENCE_ERROR_ID_EXISTS - geofence with id already exists
|
|
* GPS_GEOFENCE_ERROR_INVALID_TRANSITION - the monitorTransition contains an
|
|
* invalid transition
|
|
* GPS_GEOFENCE_ERROR_GENERIC - for other errors.
|
|
*/
|
|
typedef void (*gps_geofence_add_callback) (int32_t geofence_id, int32_t status);
|
|
|
|
/**
|
|
* The callback associated with the remove_geofence call.
|
|
*
|
|
* Parameter:
|
|
* geofence_id - Id of the geofence.
|
|
* status - GPS_GEOFENCE_OPERATION_SUCCESS
|
|
* GPS_GEOFENCE_ERROR_ID_UNKNOWN - for invalid id
|
|
* GPS_GEOFENCE_ERROR_GENERIC for others.
|
|
*/
|
|
typedef void (*gps_geofence_remove_callback) (int32_t geofence_id, int32_t status);
|
|
|
|
|
|
/**
|
|
* The callback associated with the pause_geofence call.
|
|
*
|
|
* Parameter:
|
|
* geofence_id - Id of the geofence.
|
|
* status - GPS_GEOFENCE_OPERATION_SUCCESS
|
|
* GPS_GEOFENCE_ERROR_ID_UNKNOWN - for invalid id
|
|
* GPS_GEOFENCE_ERROR_INVALID_TRANSITION -
|
|
* when monitor_transitions is invalid
|
|
* GPS_GEOFENCE_ERROR_GENERIC for others.
|
|
*/
|
|
typedef void (*gps_geofence_pause_callback) (int32_t geofence_id, int32_t status);
|
|
|
|
/**
|
|
* The callback associated with the resume_geofence call.
|
|
*
|
|
* Parameter:
|
|
* geofence_id - Id of the geofence.
|
|
* status - GPS_GEOFENCE_OPERATION_SUCCESS
|
|
* GPS_GEOFENCE_ERROR_ID_UNKNOWN - for invalid id
|
|
* GPS_GEOFENCE_ERROR_GENERIC for others.
|
|
*/
|
|
typedef void (*gps_geofence_resume_callback) (int32_t geofence_id, int32_t status);
|
|
|
|
typedef struct {
|
|
gps_geofence_transition_callback geofence_transition_callback;
|
|
gps_geofence_status_callback geofence_status_callback;
|
|
gps_geofence_add_callback geofence_add_callback;
|
|
gps_geofence_remove_callback geofence_remove_callback;
|
|
gps_geofence_pause_callback geofence_pause_callback;
|
|
gps_geofence_resume_callback geofence_resume_callback;
|
|
gps_create_thread create_thread_cb;
|
|
} GpsGeofenceCallbacks;
|
|
|
|
/** Extended interface for GPS_Geofencing support */
|
|
typedef struct {
|
|
/** set to sizeof(GpsGeofencingInterface) */
|
|
size_t size;
|
|
|
|
/**
|
|
* Opens the geofence interface and provides the callback routines
|
|
* to the implementation of this interface.
|
|
*/
|
|
void (*init)( GpsGeofenceCallbacks* callbacks );
|
|
|
|
/**
|
|
* Add a geofence area. This api currently supports circular geofences.
|
|
* Parameters:
|
|
* geofence_id - The id for the geofence. If a geofence with this id
|
|
* already exists, an error value (GPS_GEOFENCE_ERROR_ID_EXISTS)
|
|
* should be returned.
|
|
* latitude, longtitude, radius_meters - The lat, long and radius
|
|
* (in meters) for the geofence
|
|
* last_transition - The current state of the geofence. For example, if
|
|
* the system already knows that the user is inside the geofence,
|
|
* this will be set to GPS_GEOFENCE_ENTERED. In most cases, it
|
|
* will be GPS_GEOFENCE_UNCERTAIN.
|
|
* monitor_transition - Which transitions to monitor. Bitwise OR of
|
|
* GPS_GEOFENCE_ENTERED, GPS_GEOFENCE_EXITED and
|
|
* GPS_GEOFENCE_UNCERTAIN.
|
|
* notification_responsiveness_ms - Defines the best-effort description
|
|
* of how soon should the callback be called when the transition
|
|
* associated with the Geofence is triggered. For instance, if set
|
|
* to 1000 millseconds with GPS_GEOFENCE_ENTERED, the callback
|
|
* should be called 1000 milliseconds within entering the geofence.
|
|
* This parameter is defined in milliseconds.
|
|
* NOTE: This is not to be confused with the rate that the GPS is
|
|
* polled at. It is acceptable to dynamically vary the rate of
|
|
* sampling the GPS for power-saving reasons; thus the rate of
|
|
* sampling may be faster or slower than this.
|
|
* unknown_timer_ms - The time limit after which the UNCERTAIN transition
|
|
* should be triggered. This parameter is defined in milliseconds.
|
|
* See above for a detailed explanation.
|
|
*/
|
|
void (*add_geofence_area) (int32_t geofence_id, double latitude, double longitude,
|
|
double radius_meters, int last_transition, int monitor_transitions,
|
|
int notification_responsiveness_ms, int unknown_timer_ms);
|
|
|
|
/**
|
|
* Pause monitoring a particular geofence.
|
|
* Parameters:
|
|
* geofence_id - The id for the geofence.
|
|
*/
|
|
void (*pause_geofence) (int32_t geofence_id);
|
|
|
|
/**
|
|
* Resume monitoring a particular geofence.
|
|
* Parameters:
|
|
* geofence_id - The id for the geofence.
|
|
* monitor_transitions - Which transitions to monitor. Bitwise OR of
|
|
* GPS_GEOFENCE_ENTERED, GPS_GEOFENCE_EXITED and
|
|
* GPS_GEOFENCE_UNCERTAIN.
|
|
* This supersedes the value associated provided in the
|
|
* add_geofence_area call.
|
|
*/
|
|
void (*resume_geofence) (int32_t geofence_id, int monitor_transitions);
|
|
|
|
/**
|
|
* Remove a geofence area. After the function returns, no notifications
|
|
* should be sent.
|
|
* Parameter:
|
|
* geofence_id - The id for the geofence.
|
|
*/
|
|
void (*remove_geofence_area) (int32_t geofence_id);
|
|
} GpsGeofencingInterface;
|
|
|
|
|
|
/**
|
|
* Represents an estimate of the GPS clock time.
|
|
*/
|
|
typedef struct {
|
|
/** set to sizeof(GpsClock) */
|
|
size_t size;
|
|
|
|
/** A set of flags indicating the validity of the fields in this data structure. */
|
|
GpsClockFlags flags;
|
|
|
|
/**
|
|
* Leap second data.
|
|
* The sign of the value is defined by the following equation:
|
|
* utc_time_ns = time_ns + (full_bias_ns + bias_ns) - leap_second * 1,000,000,000
|
|
*
|
|
* If the data is available 'flags' must contain GPS_CLOCK_HAS_LEAP_SECOND.
|
|
*/
|
|
int16_t leap_second;
|
|
|
|
/**
|
|
* Indicates the type of time reported by the 'time_ns' field.
|
|
* This is a Mandatory field.
|
|
*/
|
|
GpsClockType type;
|
|
|
|
/**
|
|
* The GPS receiver internal clock value. This can be either the local hardware clock value
|
|
* (GPS_CLOCK_TYPE_LOCAL_HW_TIME), or the current GPS time derived inside GPS receiver
|
|
* (GPS_CLOCK_TYPE_GPS_TIME). The field 'type' defines the time reported.
|
|
*
|
|
* For local hardware clock, this value is expected to be monotonically increasing during
|
|
* the reporting session. The real GPS time can be derived by compensating the 'full bias'
|
|
* (when it is available) from this value.
|
|
*
|
|
* For GPS time, this value is expected to be the best estimation of current GPS time that GPS
|
|
* receiver can achieve. Set the 'time uncertainty' appropriately when GPS time is specified.
|
|
*
|
|
* Sub-nanosecond accuracy can be provided by means of the 'bias' field.
|
|
* The value contains the 'time uncertainty' in it.
|
|
*
|
|
* This is a Mandatory field.
|
|
*/
|
|
int64_t time_ns;
|
|
|
|
/**
|
|
* 1-Sigma uncertainty associated with the clock's time in nanoseconds.
|
|
* The uncertainty is represented as an absolute (single sided) value.
|
|
*
|
|
* This value should be set if GPS_CLOCK_TYPE_GPS_TIME is set.
|
|
* If the data is available 'flags' must contain GPS_CLOCK_HAS_TIME_UNCERTAINTY.
|
|
*/
|
|
double time_uncertainty_ns;
|
|
|
|
/**
|
|
* The difference between hardware clock ('time' field) inside GPS receiver and the true GPS
|
|
* time since 0000Z, January 6, 1980, in nanoseconds.
|
|
* This value is used if and only if GPS_CLOCK_TYPE_LOCAL_HW_TIME is set, and GPS receiver
|
|
* has solved the clock for GPS time.
|
|
* The caller is responsible for using the 'bias uncertainty' field for quality check.
|
|
*
|
|
* The sign of the value is defined by the following equation:
|
|
* true time (GPS time) = time_ns + (full_bias_ns + bias_ns)
|
|
*
|
|
* This value contains the 'bias uncertainty' in it.
|
|
* If the data is available 'flags' must contain GPS_CLOCK_HAS_FULL_BIAS.
|
|
|
|
*/
|
|
int64_t full_bias_ns;
|
|
|
|
/**
|
|
* Sub-nanosecond bias.
|
|
* The value contains the 'bias uncertainty' in it.
|
|
*
|
|
* If the data is available 'flags' must contain GPS_CLOCK_HAS_BIAS.
|
|
*/
|
|
double bias_ns;
|
|
|
|
/**
|
|
* 1-Sigma uncertainty associated with the clock's bias in nanoseconds.
|
|
* The uncertainty is represented as an absolute (single sided) value.
|
|
*
|
|
* If the data is available 'flags' must contain GPS_CLOCK_HAS_BIAS_UNCERTAINTY.
|
|
*/
|
|
double bias_uncertainty_ns;
|
|
|
|
/**
|
|
* The clock's drift in nanoseconds (per second).
|
|
* A positive value means that the frequency is higher than the nominal frequency.
|
|
*
|
|
* The value contains the 'drift uncertainty' in it.
|
|
* If the data is available 'flags' must contain GPS_CLOCK_HAS_DRIFT.
|
|
*/
|
|
double drift_nsps;
|
|
|
|
/**
|
|
* 1-Sigma uncertainty associated with the clock's drift in nanoseconds (per second).
|
|
* The uncertainty is represented as an absolute (single sided) value.
|
|
*
|
|
* If the data is available 'flags' must contain GPS_CLOCK_HAS_DRIFT_UNCERTAINTY.
|
|
*/
|
|
double drift_uncertainty_nsps;
|
|
} GpsClock;
|
|
|
|
/**
|
|
* Represents a GPS Measurement, it contains raw and computed information.
|
|
*/
|
|
typedef struct {
|
|
/** set to sizeof(GpsMeasurement) */
|
|
size_t size;
|
|
|
|
/** A set of flags indicating the validity of the fields in this data structure. */
|
|
GpsMeasurementFlags flags;
|
|
|
|
/**
|
|
* Pseudo-random number in the range of [1, 32]
|
|
* This is a Mandatory value.
|
|
*/
|
|
int8_t prn;
|
|
|
|
/**
|
|
* Time offset at which the measurement was taken in nanoseconds.
|
|
* The reference receiver's time is specified by GpsData::clock::time_ns and should be
|
|
* interpreted in the same way as indicated by GpsClock::type.
|
|
*
|
|
* The sign of time_offset_ns is given by the following equation:
|
|
* measurement time = GpsClock::time_ns + time_offset_ns
|
|
*
|
|
* It provides an individual time-stamp for the measurement, and allows sub-nanosecond accuracy.
|
|
* This is a Mandatory value.
|
|
*/
|
|
double time_offset_ns;
|
|
|
|
/**
|
|
* Per satellite sync state. It represents the current sync state for the associated satellite.
|
|
* Based on the sync state, the 'received GPS tow' field should be interpreted accordingly.
|
|
*
|
|
* This is a Mandatory value.
|
|
*/
|
|
GpsMeasurementState state;
|
|
|
|
/**
|
|
* Received GPS Time-of-Week at the measurement time, in nanoseconds.
|
|
* The value is relative to the beginning of the current GPS week.
|
|
*
|
|
* Given the sync state of GPS receiver, per each satellite, valid range for this field can be:
|
|
* Searching : [ 0 ] : GPS_MEASUREMENT_STATE_UNKNOWN
|
|
* Ranging code lock : [ 0 1ms ] : GPS_MEASUREMENT_STATE_CODE_LOCK is set
|
|
* Bit sync : [ 0 20ms ] : GPS_MEASUREMENT_STATE_BIT_SYNC is set
|
|
* Subframe sync : [ 0 6ms ] : GPS_MEASUREMENT_STATE_SUBFRAME_SYNC is set
|
|
* TOW decoded : [ 0 1week ] : GPS_MEASUREMENT_STATE_TOW_DECODED is set
|
|
*/
|
|
int64_t received_gps_tow_ns;
|
|
|
|
/**
|
|
* 1-Sigma uncertainty of the Received GPS Time-of-Week in nanoseconds.
|
|
*/
|
|
int64_t received_gps_tow_uncertainty_ns;
|
|
|
|
/**
|
|
* Carrier-to-noise density in dB-Hz, in the range [0, 63].
|
|
* It contains the measured C/N0 value for the signal at the antenna input.
|
|
*
|
|
* This is a Mandatory value.
|
|
*/
|
|
double c_n0_dbhz;
|
|
|
|
/**
|
|
* Pseudorange rate at the timestamp in m/s.
|
|
* The value also includes the effects of the receiver clock frequency and satellite clock
|
|
* frequency errors.
|
|
*
|
|
* The value includes the 'pseudorange rate uncertainty' in it.
|
|
* A positive value indicates that the pseudorange is getting larger.
|
|
*
|
|
* This is a Mandatory value.
|
|
*/
|
|
double pseudorange_rate_mps;
|
|
|
|
/**
|
|
* 1-Sigma uncertainty of the pseudurange rate in m/s.
|
|
* The uncertainty is represented as an absolute (single sided) value.
|
|
*
|
|
* This is a Mandatory value.
|
|
*/
|
|
double pseudorange_rate_uncertainty_mps;
|
|
|
|
/**
|
|
* Accumulated delta range's state. It indicates whether ADR is reset or there is a cycle slip
|
|
* (indicating loss of lock).
|
|
*
|
|
* This is a Mandatory value.
|
|
*/
|
|
GpsAccumulatedDeltaRangeState accumulated_delta_range_state;
|
|
|
|
/**
|
|
* Accumulated delta range since the last channel reset in meters.
|
|
* The data is available if 'accumulated delta range state' != GPS_ADR_STATE_UNKNOWN.
|
|
*/
|
|
double accumulated_delta_range_m;
|
|
|
|
/**
|
|
* 1-Sigma uncertainty of the accumulated delta range in meters.
|
|
* The data is available if 'accumulated delta range state' != GPS_ADR_STATE_UNKNOWN.
|
|
*/
|
|
double accumulated_delta_range_uncertainty_m;
|
|
|
|
/**
|
|
* Best derived Pseudorange by the chip-set, in meters.
|
|
* The value contains the 'pseudorange uncertainty' in it.
|
|
*
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_PSEUDORANGE.
|
|
*/
|
|
double pseudorange_m;
|
|
|
|
/**
|
|
* 1-Sigma uncertainty of the pseudorange in meters.
|
|
* The value contains the 'pseudorange' and 'clock' uncertainty in it.
|
|
* The uncertainty is represented as an absolute (single sided) value.
|
|
*
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_PSEUDORANGE_UNCERTAINTY.
|
|
*/
|
|
double pseudorange_uncertainty_m;
|
|
|
|
/**
|
|
* A fraction of the current C/A code cycle, in the range [0.0, 1023.0]
|
|
* This value contains the time (in Chip units) since the last C/A code cycle (GPS Msec epoch).
|
|
*
|
|
* The reference frequency is given by the field 'carrier_frequency_hz'.
|
|
* The value contains the 'code-phase uncertainty' in it.
|
|
*
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_CODE_PHASE.
|
|
*/
|
|
double code_phase_chips;
|
|
|
|
/**
|
|
* 1-Sigma uncertainty of the code-phase, in a fraction of chips.
|
|
* The uncertainty is represented as an absolute (single sided) value.
|
|
*
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_CODE_PHASE_UNCERTAINTY.
|
|
*/
|
|
double code_phase_uncertainty_chips;
|
|
|
|
/**
|
|
* Carrier frequency at which codes and messages are modulated, it can be L1 or L2.
|
|
* If the field is not set, the carrier frequency is assumed to be L1.
|
|
*
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_CARRIER_FREQUENCY.
|
|
*/
|
|
float carrier_frequency_hz;
|
|
|
|
/**
|
|
* The number of full carrier cycles between the satellite and the receiver.
|
|
* The reference frequency is given by the field 'carrier_frequency_hz'.
|
|
*
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_CARRIER_CYCLES.
|
|
*/
|
|
int64_t carrier_cycles;
|
|
|
|
/**
|
|
* The RF phase detected by the receiver, in the range [0.0, 1.0].
|
|
* This is usually the fractional part of the complete carrier phase measurement.
|
|
*
|
|
* The reference frequency is given by the field 'carrier_frequency_hz'.
|
|
* The value contains the 'carrier-phase uncertainty' in it.
|
|
*
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_CARRIER_PHASE.
|
|
*/
|
|
double carrier_phase;
|
|
|
|
/**
|
|
* 1-Sigma uncertainty of the carrier-phase.
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_CARRIER_PHASE_UNCERTAINTY.
|
|
*/
|
|
double carrier_phase_uncertainty;
|
|
|
|
/**
|
|
* An enumeration that indicates the 'loss of lock' state of the event.
|
|
*/
|
|
GpsLossOfLock loss_of_lock;
|
|
|
|
/**
|
|
* The number of GPS bits transmitted since Sat-Sun midnight (GPS week).
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_BIT_NUMBER.
|
|
*/
|
|
int16_t bit_number;
|
|
|
|
/**
|
|
* The elapsed time since the last received bit in milliseconds, in the range [0, 20]
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_TIME_FROM_LAST_BIT.
|
|
*/
|
|
int16_t time_from_last_bit_ms;
|
|
|
|
/**
|
|
* Doppler shift in Hz.
|
|
* A positive value indicates that the SV is moving toward the receiver.
|
|
*
|
|
* The reference frequency is given by the field 'carrier_frequency_hz'.
|
|
* The value contains the 'doppler shift uncertainty' in it.
|
|
*
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_DOPPLER_SHIFT.
|
|
*/
|
|
double doppler_shift_hz;
|
|
|
|
/**
|
|
* 1-Sigma uncertainty of the doppler shift in Hz.
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_DOPPLER_SHIFT_UNCERTAINTY.
|
|
*/
|
|
double doppler_shift_uncertainty_hz;
|
|
|
|
/**
|
|
* An enumeration that indicates the 'multipath' state of the event.
|
|
*/
|
|
GpsMultipathIndicator multipath_indicator;
|
|
|
|
/**
|
|
* Signal-to-noise ratio in dB.
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_SNR.
|
|
*/
|
|
double snr_db;
|
|
|
|
/**
|
|
* Elevation in degrees, the valid range is [-90, 90].
|
|
* The value contains the 'elevation uncertainty' in it.
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_ELEVATION.
|
|
*/
|
|
double elevation_deg;
|
|
|
|
/**
|
|
* 1-Sigma uncertainty of the elevation in degrees, the valid range is [0, 90].
|
|
* The uncertainty is represented as the absolute (single sided) value.
|
|
*
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_ELEVATION_UNCERTAINTY.
|
|
*/
|
|
double elevation_uncertainty_deg;
|
|
|
|
/**
|
|
* Azimuth in degrees, in the range [0, 360).
|
|
* The value contains the 'azimuth uncertainty' in it.
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_AZIMUTH.
|
|
* */
|
|
double azimuth_deg;
|
|
|
|
/**
|
|
* 1-Sigma uncertainty of the azimuth in degrees, the valid range is [0, 180].
|
|
* The uncertainty is represented as an absolute (single sided) value.
|
|
*
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_AZIMUTH_UNCERTAINTY.
|
|
*/
|
|
double azimuth_uncertainty_deg;
|
|
|
|
/**
|
|
* Whether the GPS represented by the measurement was used for computing the most recent fix.
|
|
* If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_USED_IN_FIX.
|
|
*/
|
|
bool used_in_fix;
|
|
} GpsMeasurement;
|
|
|
|
/** Represents a reading of GPS measurements. */
|
|
typedef struct {
|
|
/** set to sizeof(GpsData) */
|
|
size_t size;
|
|
|
|
/** Number of measurements. */
|
|
size_t measurement_count;
|
|
|
|
/** The array of measurements. */
|
|
GpsMeasurement measurements[GPS_MAX_MEASUREMENT];
|
|
|
|
/** The GPS clock time reading. */
|
|
GpsClock clock;
|
|
} GpsData;
|
|
|
|
/**
|
|
* The callback for to report measurements from the HAL.
|
|
*
|
|
* Parameters:
|
|
* data - A data structure containing the measurements.
|
|
*/
|
|
typedef void (*gps_measurement_callback) (GpsData* data);
|
|
|
|
typedef struct {
|
|
/** set to sizeof(GpsMeasurementCallbacks) */
|
|
size_t size;
|
|
gps_measurement_callback measurement_callback;
|
|
} GpsMeasurementCallbacks;
|
|
|
|
#define GPS_MEASUREMENT_OPERATION_SUCCESS 0
|
|
#define GPS_MEASUREMENT_ERROR_ALREADY_INIT -100
|
|
#define GPS_MEASUREMENT_ERROR_GENERIC -101
|
|
|
|
/**
|
|
* Extended interface for GPS Measurements support.
|
|
*/
|
|
typedef struct {
|
|
/** Set to sizeof(GpsMeasurementInterface) */
|
|
size_t size;
|
|
|
|
/**
|
|
* Initializes the interface and registers the callback routines with the HAL.
|
|
* After a successful call to 'init' the HAL must begin to provide updates at its own phase.
|
|
*
|
|
* Status:
|
|
* GPS_MEASUREMENT_OPERATION_SUCCESS
|
|
* GPS_MEASUREMENT_ERROR_ALREADY_INIT - if a callback has already been registered without a
|
|
* corresponding call to 'close'
|
|
* GPS_MEASUREMENT_ERROR_GENERIC - if any other error occurred, it is expected that the HAL
|
|
* will not generate any updates upon returning this error code.
|
|
*/
|
|
int (*init) (GpsMeasurementCallbacks* callbacks);
|
|
|
|
/**
|
|
* Stops updates from the HAL, and unregisters the callback routines.
|
|
* After a call to stop, the previously registered callbacks must be considered invalid by the
|
|
* HAL.
|
|
* If stop is invoked without a previous 'init', this function should perform no work.
|
|
*/
|
|
void (*close) ();
|
|
|
|
} GpsMeasurementInterface;
|
|
|
|
|
|
/** Represents a GPS navigation message (or a fragment of it). */
|
|
typedef struct {
|
|
/** set to sizeof(GpsNavigationMessage) */
|
|
size_t size;
|
|
|
|
/**
|
|
* Pseudo-random number in the range of [1, 32]
|
|
* This is a Mandatory value.
|
|
*/
|
|
int8_t prn;
|
|
|
|
/**
|
|
* The type of message contained in the structure.
|
|
* This is a Mandatory value.
|
|
*/
|
|
GpsNavigationMessageType type;
|
|
|
|
/**
|
|
* Message identifier.
|
|
* It provides an index so the complete Navigation Message can be assembled. i.e. fo L1 C/A
|
|
* subframe 4 and 5, this value corresponds to the 'frame id' of the navigation message.
|
|
* Subframe 1, 2, 3 does not contain a 'frame id' and this value can be set to -1.
|
|
*/
|
|
int16_t message_id;
|
|
|
|
/**
|
|
* Sub-message identifier.
|
|
* If required by the message 'type', this value contains a sub-index within the current
|
|
* message (or frame) that is being transmitted.
|
|
* i.e. for L1 C/A the submessage id corresponds to the sub-frame id of the navigation message.
|
|
*/
|
|
int16_t submessage_id;
|
|
|
|
/**
|
|
* The length of the data (in bytes) contained in the current message.
|
|
* If this value is different from zero, 'data' must point to an array of the same size.
|
|
* i.e. for L1 C/A the size of the sub-frame will be 40 bytes (10 words).
|
|
*
|
|
* This is a Mandatory value.
|
|
*/
|
|
size_t data_length;
|
|
|
|
/**
|
|
* The data of the reported GPS message.
|
|
* The bytes (or words) specified using big endian format (MSB first).
|
|
*/
|
|
uint8_t* data;
|
|
|
|
} GpsNavigationMessage;
|
|
|
|
/**
|
|
* 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 (*gps_navigation_message_callback) (GpsNavigationMessage* message);
|
|
|
|
typedef struct {
|
|
/** set to sizeof(GpsNavigationMessageCallbacks) */
|
|
size_t size;
|
|
gps_navigation_message_callback navigation_message_callback;
|
|
} GpsNavigationMessageCallbacks;
|
|
|
|
#define GPS_NAVIGATION_MESSAGE_OPERATION_SUCCESS 0
|
|
#define GPS_NAVIGATION_MESSAGE_ERROR_ALREADY_INIT -100
|
|
#define GPS_NAVIGATION_MESSAGE_ERROR_GENERIC -101
|
|
|
|
/**
|
|
* Extended interface for GPS navigation message reporting support.
|
|
*/
|
|
typedef struct {
|
|
/** Set to sizeof(GpsNavigationMessageInterface) */
|
|
size_t size;
|
|
|
|
/**
|
|
* Initializes the interface and registers the callback routines with the HAL.
|
|
* After a successful call to 'init' the HAL must begin to provide updates as they become
|
|
* available.
|
|
*
|
|
* Status:
|
|
* GPS_NAVIGATION_MESSAGE_OPERATION_SUCCESS
|
|
* GPS_NAVIGATION_MESSAGE_ERROR_ALREADY_INIT - if a callback has already been registered
|
|
* without a corresponding call to 'close'.
|
|
* GPS_NAVIGATION_MESSAGE_ERROR_GENERIC - if any other error occurred, it is expected that
|
|
* the HAL will not generate any updates upon returning this error code.
|
|
*/
|
|
int (*init) (GpsNavigationMessageCallbacks* callbacks);
|
|
|
|
/**
|
|
* Stops updates from the HAL, and unregisters the callback routines.
|
|
* After a call to stop, the previously registered callbacks must be considered invalid by the
|
|
* HAL.
|
|
* If stop is invoked without a previous 'init', this function should perform no work.
|
|
*/
|
|
void (*close) ();
|
|
|
|
} GpsNavigationMessageInterface;
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* ANDROID_INCLUDE_HARDWARE_GPS_H */
|
|
|