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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";
18option optimize_for = LITE_RUNTIME;
19
20package emulator;
21
22// CMD messages are from workstation --> VHAL
23// RESP messages are from VHAL --> workstation
24enum MsgType {
25    GET_CONFIG_CMD                      = 0;
26    GET_CONFIG_RESP                     = 1;
27    GET_CONFIG_ALL_CMD                  = 2;
28    GET_CONFIG_ALL_RESP                 = 3;
29    GET_PROPERTY_CMD                    = 4;
30    GET_PROPERTY_RESP                   = 5;
31    GET_PROPERTY_ALL_CMD                = 6;
32    GET_PROPERTY_ALL_RESP               = 7;
33    SET_PROPERTY_CMD                    = 8;
34    SET_PROPERTY_RESP                   = 9;
35    SET_PROPERTY_ASYNC                  = 10;
36}
37enum Status {
38    RESULT_OK                           = 0;
39    ERROR_UNKNOWN                       = 1;
40    ERROR_UNIMPLEMENTED_CMD             = 2;
41    ERROR_INVALID_PROPERTY              = 3;
42    ERROR_INVALID_AREA_ID               = 4;
43    ERROR_PROPERTY_UNINITIALIZED        = 5;
44    ERROR_WRITE_ONLY_PROPERTY           = 6;
45    ERROR_MEMORY_ALLOC_FAILED           = 7;
46    ERROR_INVALID_OPERATION             = 8;
47}
48
49message VehicleAreaConfig {
50    required int32  area_id             = 1;
51    optional sint32 min_int32_value     = 2;
52    optional sint32 max_int32_value     = 3;
53    optional sint64 min_int64_value     = 4;
54    optional sint64 max_int64_value     = 5;
55    optional float  min_float_value     = 6;
56    optional float  max_float_value     = 7;
57}
58
59message VehiclePropConfig {
60    required int32             prop                = 1;
61    optional int32             access              = 2;
62    optional int32             change_mode         = 3;
63    optional int32             value_type          = 4;
64    optional int32             supported_areas     = 5;
65    repeated VehicleAreaConfig area_configs        = 6;
66    optional int32             config_flags        = 7;
67    repeated int32             config_array        = 8;
68    optional string            config_string       = 9;
69    optional float             min_sample_rate     = 10;
70    optional float             max_sample_rate     = 11;
71};
72
73message VehiclePropValue {
74    // common data
75    required int32  prop                = 1;
76    optional int32  value_type          = 2;
77    optional int64  timestamp           = 3;    // required for valid data from HAL, skipped for set
78
79    // values
80    optional int32  area_id             = 4;
81    repeated sint32 int32_values        = 5;    // this also covers boolean value.
82    repeated sint64 int64_values        = 6;
83    repeated float  float_values        = 7;
84    optional string string_value        = 8;
85    optional bytes  bytes_value         = 9;
86};
87
88// This structure is used to notify what values to get from the Vehicle HAL
89message VehiclePropGet {
90    required int32 prop                 = 1;
91    optional int32 area_id              = 2;
92};
93
94message EmulatorMessage {
95    required MsgType           msg_type = 1;
96    optional Status            status   = 2;    // Only for RESP messages
97    repeated VehiclePropGet    prop     = 3;    // Provided for getConfig, getProperty commands
98    repeated VehiclePropConfig config   = 4;
99    repeated VehiclePropValue  value    = 5;
100};
101