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1/*
2 * Copyright 2017 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.wifi@1.2;
18
19import @1.0::WifiStatus;
20import @1.1::IWifiChip;
21import IWifiChipEventCallback;
22
23/**
24 * Interface that represents a chip that must be configured as a single unit.
25 * The HAL/driver/firmware will be responsible for determining which phy is used
26 * to perform operations like NAN, RTT, etc.
27 */
28interface IWifiChip extends @1.1::IWifiChip {
29    /**
30     * Capabilities exposed by this chip.
31     */
32    enum ChipCapabilityMask : @1.1::IWifiChip.ChipCapabilityMask {
33        /**
34         * Set/Reset Tx Power limits.
35         */
36         USE_BODY_HEAD_SAR = 1 << 11
37    };
38
39    /**
40     * List of preset wifi radio TX power levels for different scenarios.
41     * The actual power values (typically varies based on the channel,
42     * 802.11 connection type, number of MIMO streams, etc) for each scenario
43     * is defined by the OEM as a BDF file since it varies for each wifi chip
44     * vendor and device.
45     */
46    enum TxPowerScenario : @1.1::IWifiChip.TxPowerScenario {
47        ON_HEAD_CELL_OFF = 1,
48        ON_HEAD_CELL_ON  = 2,
49        ON_BODY_CELL_OFF = 3,
50        ON_BODY_CELL_ON  = 4
51    };
52
53    /**
54     * API to select one of the preset TX power scenarios.
55     *
56     * The framework must invoke this method with the appropriate scenario to let
57     * the wifi chip change it's transmitting power levels.
58     * OEM's should define various power profiles for each of the scenarios
59     * above (defined in |TxPowerScenario|) in a vendor extension.
60     *
61     * @param scenario One of the preselected scenarios defined in
62     *        |TxPowerScenario|.
63     * @return status WifiStatus of the operation.
64     *         Possible status codes:
65     *         |WifiStatusCode.SUCCESS|,
66     *         |WifiStatusCode.ERROR_WIFI_CHIP_INVALID|,
67     *         |WifiStatusCode.ERROR_NOT_SUPPORTED|,
68     *         |WifiStatusCode.NOT_AVAILABLE|,
69     *         |WifiStatusCode.UNKNOWN|
70     */
71    selectTxPowerScenario_1_2(TxPowerScenario scenario) generates (WifiStatus status);
72
73    /**
74     * Requests notifications of significant events on this chip. Multiple calls
75     * to this must register multiple callbacks each of which must receive all
76     * events.
77     *
78     * @param callback An instance of the |IWifiChipEventCallback| HIDL interface
79     *        object.
80     * @return status WifiStatus of the operation.
81     *         Possible status codes:
82     *         |WifiStatusCode.SUCCESS|,
83     *         |WifiStatusCode.ERROR_WIFI_CHIP_INVALID|
84     */
85    registerEventCallback_1_2(IWifiChipEventCallback callback)
86        generates (WifiStatus status);
87};
88