667 lines
19 KiB
C
667 lines
19 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 <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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/** 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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/** 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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/**
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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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* 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 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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/** 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;
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} AGpsRefLocationCellID;
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typedef struct {
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uint8_t mac[6];
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} AGpsRefLocationMac;
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/** Represents ref locations */
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typedef struct {
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uint16_t type;
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union {
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AGpsRefLocationCellID cellID;
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AGpsRefLocationMac mac;
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} u;
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} AGpsRefLocation;
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/** Callback with location information.
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* Can only be called from a thread created by create_thread_cb.
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*/
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typedef void (* gps_location_callback)(GpsLocation* location);
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/** Callback with status information.
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* Can only be called from a thread created by create_thread_cb.
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*/
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typedef void (* gps_status_callback)(GpsStatus* status);
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/** Callback with SV status information.
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* Can only be called from a thread created by create_thread_cb.
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*/
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typedef void (* gps_sv_status_callback)(GpsSvStatus* sv_info);
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/** Callback for reporting NMEA sentences.
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* Can only be called from a thread created by create_thread_cb.
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*/
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typedef void (* gps_nmea_callback)(GpsUtcTime timestamp, const char* nmea, int length);
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/** Callback to inform framework of the GPS engine's capabilities.
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* Capability parameter is a bit field of GPS_CAPABILITY_* flags.
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*/
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typedef void (* gps_set_capabilities)(uint32_t capabilities);
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/** Callback utility for acquiring the GPS wakelock.
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* This can be used to prevent the CPU from suspending while handling GPS events.
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*/
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typedef void (* gps_acquire_wakelock)();
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/** Callback utility for releasing the GPS wakelock. */
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typedef void (* gps_release_wakelock)();
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/** Callback for creating a thread that can call into the Java framework code.
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* This must be used to create any threads that report events up to the framework.
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*/
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typedef pthread_t (* gps_create_thread)(const char* name, void (*start)(void *), void* arg);
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/** GPS callback structure. */
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typedef struct {
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/** set to sizeof(GpsCallbacks) */
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size_t size;
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gps_location_callback location_cb;
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gps_status_callback status_cb;
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gps_sv_status_callback sv_status_cb;
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gps_nmea_callback nmea_cb;
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gps_set_capabilities set_capabilities_cb;
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gps_acquire_wakelock acquire_wakelock_cb;
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gps_release_wakelock release_wakelock_cb;
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gps_create_thread create_thread_cb;
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} GpsCallbacks;
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/** Represents the standard GPS interface. */
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typedef struct {
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/** set to sizeof(GpsInterface) */
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size_t size;
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/**
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* Opens the interface and provides the callback routines
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* to the implemenation of this interface.
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*/
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int (*init)( GpsCallbacks* callbacks );
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/** Starts navigating. */
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int (*start)( void );
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/** Stops navigating. */
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int (*stop)( void );
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/** Closes the interface. */
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void (*cleanup)( void );
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/** Injects the current time. */
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int (*inject_time)(GpsUtcTime time, int64_t timeReference,
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int uncertainty);
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/** Injects current location from another location provider
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* (typically cell ID).
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* latitude and longitude are measured in degrees
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* expected accuracy is measured in meters
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*/
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int (*inject_location)(double latitude, double longitude, float accuracy);
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/**
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* Specifies that the next call to start will not use the
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* information defined in the flags. GPS_DELETE_ALL is passed for
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* a cold start.
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*/
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void (*delete_aiding_data)(GpsAidingData flags);
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/**
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* min_interval represents the time between fixes in milliseconds.
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* preferred_accuracy represents the requested fix accuracy in meters.
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* preferred_time represents the requested time to first fix in milliseconds.
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*/
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int (*set_position_mode)(GpsPositionMode mode, GpsPositionRecurrence recurrence,
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uint32_t min_interval, uint32_t preferred_accuracy, uint32_t preferred_time);
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/** Get a pointer to extension information. */
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const void* (*get_extension)(const char* name);
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} GpsInterface;
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/** Callback to request the client to download XTRA data.
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* The client should download XTRA data and inject it by calling inject_xtra_data().
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* Can only be called from a thread created by create_thread_cb.
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*/
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typedef void (* gps_xtra_download_request)();
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/** Callback structure for the XTRA interface. */
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typedef struct {
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gps_xtra_download_request download_request_cb;
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gps_create_thread create_thread_cb;
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} GpsXtraCallbacks;
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/** Extended interface for XTRA support. */
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typedef struct {
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/** set to sizeof(GpsXtraInterface) */
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size_t size;
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/**
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* Opens the XTRA interface and provides the callback routines
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* to the implemenation of this interface.
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*/
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int (*init)( GpsXtraCallbacks* callbacks );
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/** Injects XTRA data into the GPS. */
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int (*inject_xtra_data)( char* data, int length );
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} GpsXtraInterface;
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/** Extended interface for DEBUG support. */
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typedef struct {
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/** set to sizeof(GpsDebugInterface) */
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size_t size;
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/**
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* This function should return any information that the native
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* implementation wishes to include in a bugreport.
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*/
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size_t (*get_internal_state)(char* buffer, size_t bufferSize);
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} GpsDebugInterface;
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/** Represents the status of AGPS. */
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typedef struct {
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/** set to sizeof(AGpsStatus) */
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size_t size;
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AGpsType type;
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AGpsStatusValue status;
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uint32_t ipaddr;
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} AGpsStatus;
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/** Callback with AGPS status information.
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* Can only be called from a thread created by create_thread_cb.
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*/
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typedef void (* agps_status_callback)(AGpsStatus* status);
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/** Callback structure for the AGPS interface. */
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typedef struct {
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agps_status_callback status_cb;
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gps_create_thread create_thread_cb;
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} AGpsCallbacks;
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/** Extended interface for AGPS support. */
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typedef struct {
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/** set to sizeof(AGpsInterface) */
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size_t size;
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/**
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* Opens the AGPS interface and provides the callback routines
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* to the implemenation of this interface.
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*/
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void (*init)( AGpsCallbacks* callbacks );
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/**
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* Notifies that a data connection is available and sets
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* the name of the APN to be used for SUPL.
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*/
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int (*data_conn_open)( const char* apn );
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/**
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* Notifies that the AGPS data connection has been closed.
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*/
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int (*data_conn_closed)();
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/**
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* Notifies that a data connection is not available for AGPS.
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*/
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int (*data_conn_failed)();
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/**
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* Sets the hostname and port for the AGPS server.
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*/
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int (*set_server)( AGpsType type, const char* hostname, int port );
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} AGpsInterface;
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/** Represents an NI request */
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typedef struct {
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/** set to sizeof(GpsNiNotification) */
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size_t size;
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/**
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* An ID generated by HAL to associate NI notifications and UI
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* responses
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*/
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int notification_id;
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/**
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* An NI type used to distinguish different categories of NI
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* events, such as GPS_NI_TYPE_VOICE, GPS_NI_TYPE_UMTS_SUPL, ...
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|
*/
|
|
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 implemenation 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);
|
|
} AGpsRilInterface;
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* ANDROID_INCLUDE_HARDWARE_GPS_H */
|
|
|