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1/*
2 * Copyright (C) 2018 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.hardware.gnss@2.0;
18
19import android.hardware.gnss.measurement_corrections@1.0::IMeasurementCorrections;
20import android.hardware.gnss.visibility_control@1.0::IGnssVisibilityControl;
21import @1.1::IGnss;
22
23import GnssLocation;
24import IGnssCallback;
25import IGnssConfiguration;
26import IGnssDebug;
27import IGnssMeasurement;
28import IAGnss;
29import IAGnssRil;
30import IGnssBatching;
31
32/**
33 * Represents the standard GNSS (Global Navigation Satellite System) interface.
34 *
35 * Due to the introduction of new GNSS HAL package android.hardware.gnss.visibility_control@1.0
36 * the interface @1.0::IGnssNi.hal and @1.0::IGnssNiCallback.hal are deprecated in this version
37 * and are not supported by the framework. The GNSS HAL implementation of this interface
38 * must return nullptr for the following @1.0::IGnss method.
39 *     getExtensionGnssNi() generates (IGnssNi gnssNiIface);
40 */
41interface IGnss extends @1.1::IGnss {
42    /**
43     * Opens the interface and provides the callback routines to the implementation of this
44     * interface.
45     *
46     * The framework calls this method to instruct the GPS engine to prepare for serving requests
47     * from the framework. The GNSS HAL implementation must respond to all GNSS requests from the
48     * framework upon successful return from this method until cleanup() method is called to
49     * close this interface.
50     *
51     * @param callback Callback interface for IGnss.
52     *
53     * @return success Returns true on success.
54     */
55    setCallback_2_0(IGnssCallback callback) generates (bool success);
56
57    /**
58     * This method returns the IGnssConfiguration interface.
59     *
60     * @return gnssConfigurationIface Handle to the IGnssConfiguration interface.
61     */
62    getExtensionGnssConfiguration_2_0() generates (IGnssConfiguration gnssConfigurationIface);
63
64    /**
65     * This method returns the IGnssDebug interface.
66     *
67     * @return gnssDebugIface Handle to the IGnssDebug interface.
68     */
69    getExtensionGnssDebug_2_0() generates (IGnssDebug gnssDebugIface);
70
71    /**
72     * This method returns the IAGnss Interface.
73     *
74     * The getExtensionAGnss() must return nullptr as the @1.0::IAGnss interface is
75     * deprecated.
76     *
77     * @return aGnssIface Handle to the IAGnss interface.
78     */
79    getExtensionAGnss_2_0() generates (IAGnss aGnssIface);
80
81    /**
82     * This method returns the IAGnssRil Interface.
83     *
84     * @return aGnssRilIface Handle to the IAGnssRil interface.
85     */
86    getExtensionAGnssRil_2_0() generates (IAGnssRil aGnssRilIface);
87
88    /**
89     * This method returns the IGnssMeasurement interface.
90     *
91     * Exactly one of getExtensionGnssMeasurement(), getExtensionGnssMeasurement_1_1(), and
92     * getExtensionGnssMeasurement_2_0() methods must return a non-null handle, and the other
93     * methods must return nullptr.
94     *
95     * @return gnssMeasurementIface Handle to the IGnssMeasurement interface.
96     */
97    getExtensionGnssMeasurement_2_0() generates (IGnssMeasurement gnssMeasurementIface);
98
99    /**
100     * This method returns the IMeasurementCorrections interface.
101     *
102     * @return measurementCorrectionsIface Handle to the IMeasurementCorrections interface.
103     */
104    getExtensionMeasurementCorrections()
105            generates (IMeasurementCorrections measurementCorrectionsIface);
106
107    /**
108     * This method returns the IGnssVisibilityControl interface.
109     *
110     * @return visibilityControlIface Handle to the IGnssVisibilityControl interface.
111     */
112    getExtensionVisibilityControl() generates (IGnssVisibilityControl visibilityControlIface);
113
114    /**
115     * This method returns the IGnssBatching interface.
116     *
117     * @return batchingIface Handle to the IGnssBatching interface.
118     */
119    getExtensionGnssBatching_2_0() generates (IGnssBatching batchingIface);
120
121    /**
122     * Injects current location from the best available location provider.
123     *
124     * Unlike injectLocation, this method may inject a recent GNSS location from the HAL
125     * implementation, if that is the best available location known to the framework.
126     *
127     * @param location Location information from the best available location provider.
128     *
129     * @return success Returns true if successful.
130     */
131    injectBestLocation_2_0(GnssLocation location) generates (bool success);
132};