1 
2 /*
3  * Copyright (C) 2017 The Android Open Source Project
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *      http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 #ifndef CHRE_UTIL_NANOAPP_APP_ID_H_
19 #define CHRE_UTIL_NANOAPP_APP_ID_H_
20 
21 #include <chre/common.h>
22 #include <stdint.h>
23 
24 /**
25  * @file
26  * Helpers for defining static nanoapp IDs, e.g. for use with
27  * CHRE_STATIC_NANOAPP_INIT.
28  */
29 
30 //! Sample Vendor ID for example nanoapps. The vendor ID portion is the 5 most
31 //! significant bytes of the app ID. This vendor ID should not appear in
32 //! production.
33 #define CHRE_VENDOR_ID_EXAMPLE UINT64_C(0x0123456789000000)
34 
35 namespace chre {
36 
37 /**
38  * Constructs a fully qualified nanoapp ID from a vendor portion (most
39  * significant 5 bytes) and app number (least significant 3 bytes)
40  *
41  * @param vendor Value with vendor unique identifier in the most significant 5
42  *        bytes
43  * @param appNumber Value with vendor-scoped app number in the least significant
44  *        3 bytes
45  *
46  * @return app ID combining vendor and app number
47  */
makeNanoappId(uint64_t vendor,uint32_t appNumber)48 constexpr uint64_t makeNanoappId(uint64_t vendor, uint32_t appNumber) {
49   return ((vendor & CHRE_VENDOR_ID_MASK) | (appNumber & ~CHRE_VENDOR_ID_MASK));
50 }
51 
52 /**
53  * @return App ID combining the given 3-byte app number and Google's 5-byte
54  *         vendor ID
55  */
makeExampleNanoappId(uint32_t appNumber)56 constexpr uint64_t makeExampleNanoappId(uint32_t appNumber) {
57   return makeNanoappId(CHRE_VENDOR_ID_EXAMPLE, appNumber);
58 }
59 
60 /**
61  * @return App ID combining the given 3-byte app number and Google's 5-byte
62  *         vendor ID
63  */
makeGoogleNanoappId(uint32_t appNumber)64 constexpr uint64_t makeGoogleNanoappId(uint32_t appNumber) {
65   return makeNanoappId(CHRE_VENDOR_ID_GOOGLE, appNumber);
66 }
67 
68 // clang-format off
69 constexpr uint64_t kHelloWorldAppId       = makeExampleNanoappId(1);
70 constexpr uint64_t kMessageWorldAppId     = makeExampleNanoappId(2);
71 constexpr uint64_t kTimerWorldAppId       = makeExampleNanoappId(3);
72 constexpr uint64_t kSensorWorldAppId      = makeExampleNanoappId(4);
73 constexpr uint64_t kGnssWorldAppId        = makeExampleNanoappId(5);
74 constexpr uint64_t kWifiWorldAppId        = makeExampleNanoappId(6);
75 constexpr uint64_t kWwanWorldAppId        = makeExampleNanoappId(7);
76 // 8 = reserved (previously used by ImuCal)
77 constexpr uint64_t kSpammerAppId          = makeExampleNanoappId(9);
78 constexpr uint64_t kUnloadTesterAppId     = makeExampleNanoappId(10);
79 // 11 = reserved (previously used by AshWorld)
80 constexpr uint64_t kAudioWorldAppId       = makeExampleNanoappId(12);
81 constexpr uint64_t kHostAwakeWorldAppId   = makeExampleNanoappId(13);
82 constexpr uint64_t kAudioStressTestAppId  = makeExampleNanoappId(14);
83 constexpr uint64_t kPowerTestAppId        = makeExampleNanoappId(15);
84 // 16 = Power Test TCM
85 constexpr uint64_t kDebugDumpWorldAppId   = makeExampleNanoappId(17);
86 // clang-format on
87 
88 }  // namespace chre
89 
90 #endif  // CHRE_UTIL_NANOAPP_APP_ID_H_
91