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1/*
2 * Copyright (C) 2015 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
17syntax = "proto2";
18
19package vhal_proto;
20
21// CMD messages are from workstation --> VHAL
22// RESP messages are from VHAL --> workstation
23enum MsgType {
24    GET_CONFIG_CMD = 0;
25    GET_CONFIG_RESP = 1;
26    GET_CONFIG_ALL_CMD = 2;
27    GET_CONFIG_ALL_RESP = 3;
28    GET_PROPERTY_CMD = 4;
29    GET_PROPERTY_RESP = 5;
30    GET_PROPERTY_ALL_CMD = 6;
31    GET_PROPERTY_ALL_RESP = 7;
32    SET_PROPERTY_CMD = 8;
33    SET_PROPERTY_RESP = 9;
34    SET_PROPERTY_ASYNC = 10;
35    DEBUG_CMD = 11;
36    DEBUG_RESP = 12;
37}
38enum Status {
39    RESULT_OK = 0;
40    ERROR_UNKNOWN = 1;
41    ERROR_UNIMPLEMENTED_CMD = 2;
42    ERROR_INVALID_PROPERTY = 3;
43    ERROR_INVALID_AREA_ID = 4;
44    ERROR_PROPERTY_UNINITIALIZED = 5;
45    ERROR_WRITE_ONLY_PROPERTY = 6;
46    ERROR_MEMORY_ALLOC_FAILED = 7;
47    ERROR_INVALID_OPERATION = 8;
48}
49
50enum VehiclePropStatus {
51    AVAILABLE = 0;
52    UNAVAILABLE = 1;
53    ERROR = 2;
54}
55
56message VehicleAreaConfig {
57    required int32 area_id = 1;
58    optional sint32 min_int32_value = 2;
59    optional sint32 max_int32_value = 3;
60    optional sint64 min_int64_value = 4;
61    optional sint64 max_int64_value = 5;
62    optional float min_float_value = 6;
63    optional float max_float_value = 7;
64}
65
66message VehiclePropConfig {
67    required int32 prop = 1;
68    optional int32 access = 2;
69    optional int32 change_mode = 3;
70    optional int32 value_type = 4;
71    optional int32 supported_areas = 5;  // Deprecated - DO NOT USE
72    repeated VehicleAreaConfig area_configs = 6;
73    optional int32 config_flags = 7;
74    repeated int32 config_array = 8;
75    optional string config_string = 9;
76    optional float min_sample_rate = 10;
77    optional float max_sample_rate = 11;
78};
79
80message VehiclePropValue {
81    // common data
82    required int32 prop = 1;
83    optional int32 value_type = 2;
84    optional int64 timestamp = 3;            // required for valid data from HAL, skipped for set
85    optional VehiclePropStatus status = 10;  // required for valid data from HAL, skipped for set
86
87    // values
88    optional int32 area_id = 4;
89    repeated sint32 int32_values = 5;  // this also covers boolean value.
90    repeated sint64 int64_values = 6;
91    repeated float float_values = 7;
92    optional string string_value = 8;
93    optional bytes bytes_value = 9;
94};
95
96// This structure is used to notify what values to get from the Vehicle HAL
97message VehiclePropGet {
98    required int32 prop = 1;
99    optional int32 area_id = 2;
100};
101
102message EmulatorMessage {
103    required MsgType msg_type = 1;
104    optional Status status = 2;        // Only for RESP messages
105    repeated VehiclePropGet prop = 3;  // Provided for getConfig, getProperty commands
106    repeated VehiclePropConfig config = 4;
107    repeated VehiclePropValue value = 5;
108    repeated string debug_commands = 6;  // Required for debug command
109    optional string debug_result = 7;    // Required for debug RESP messages
110};
111