1 /*
2  * Copyright (C) 2016 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 
17 #include <stdint.h>
18 #include <inttypes.h>
19 #include <chre.h>
20 
21 #define APP_LABEL "CHRE App 2: "
22 
23 /* chre.h does not define printf format attribute for chreLog() */
24 void chreLog(enum chreLogLevel level, const char *str, ...) __attribute__ ((__format__ (__printf__, 2, 3)));
25 
26 #define EVT_LOCAL_SETUP CHRE_EVENT_FIRST_USER_VALUE
27 
28 struct MyTimer {
29     uint64_t startTime;
30     uint32_t timerId;
31 };
32 
33 struct ExtMsg
34 {
35     uint8_t msg;
36     uint32_t val;
37 } __attribute__((packed));
38 
39 static const uint64_t kOneSecond = UINT64_C(1000000000); // in nanoseconds
40 
41 static uint32_t mMyTid;
42 static uint64_t mMyAppId;
43 static int mCnt;
44 static struct MyTimer mTimer;
45 
nanoappStart(void)46 bool nanoappStart(void)
47 {
48     mMyAppId = chreGetAppId();
49     mMyTid = chreGetInstanceId();
50     mCnt = 3;
51     chreSendEvent(EVT_LOCAL_SETUP, NULL, NULL, mMyTid);
52     chreLog(CHRE_LOG_INFO, APP_LABEL "init: offset: %" PRId64, chreGetEstimatedHostTimeOffset());
53     chreConfigureNanoappInfoEvents(true);
54     return true;
55 }
56 
nanoappEnd(void)57 void nanoappEnd(void)
58 {
59     chreLog(CHRE_LOG_INFO, APP_LABEL "terminating");
60 }
61 
nanoappHandleEvent(uint32_t srcTid,uint16_t evtType,const void * evtData)62 void nanoappHandleEvent(uint32_t srcTid, uint16_t evtType, const void* evtData)
63 {
64     switch (evtType) {
65     case  EVT_LOCAL_SETUP:
66     {
67         uint32_t instanceId = chreGetInstanceId();
68         uint64_t appId = chreGetAppId();
69         struct chreNanoappInfo info;
70 
71         mTimer.startTime = chreGetTime();
72         mTimer.timerId = chreTimerSet(kOneSecond, &mTimer, false);
73         chreLog(CHRE_LOG_INFO, APP_LABEL "started with tid %04" PRIX32
74                                " timerid %" PRIu32
75                                "\n", mMyTid, mTimer.timerId);
76         chreLog(CHRE_LOG_INFO, APP_LABEL "appId=%016llx; instanceId=%ld",
77             appId, instanceId);
78         if (chreGetNanoappInfoByInstanceId(instanceId, &info)) {
79             chreLog(CHRE_LOG_INFO, APP_LABEL "info by instanceId; appId=%08llx; version=%ld; instanceId=%ld",
80                 info.appId, info.version, info.instanceId);
81         } else {
82             chreLog(CHRE_LOG_INFO, APP_LABEL "error getting info by instance id");
83         }
84         if (chreGetNanoappInfoByAppId(appId, &info)) {
85             chreLog(CHRE_LOG_INFO, APP_LABEL "info by appId; appId=%08llx; version=%ld; instanceId=%ld",
86                 info.appId, info.version, info.instanceId);
87         } else {
88              chreLog(CHRE_LOG_INFO, APP_LABEL "error getting info by app id");
89         }
90         break;
91     }
92     case CHRE_EVENT_TIMER:
93     {
94         const struct MyTimer *t = (const struct MyTimer *)evtData;
95 
96         chreLog(CHRE_LOG_INFO, APP_LABEL "received timer %" PRIu32
97                                " (START: %" PRIu64 " TIME: %" PRIu64 " OFFSET: %" PRId64
98                                ") cnt: %d\n", t->timerId, t->startTime, chreGetTime(),
99                                chreGetEstimatedHostTimeOffset(),  mCnt);
100         if (mCnt-- <= 0) {
101             chreTimerCancel(t->timerId);
102             chreAbort(0x0001);
103             chreAbort(0x0002);
104         }
105         break;
106     }
107     case CHRE_EVENT_MESSAGE_FROM_HOST:
108     {
109         const struct chreMessageFromHostData *msg = (const struct chreMessageFromHostData *)evtData;
110         const uint8_t *data = (const uint8_t *)msg->message;
111         const size_t size = msg->messageSize;
112         const uint32_t type = msg->messageType;
113         const uint16_t endpoint = msg->hostEndpoint;
114         chreLog(CHRE_LOG_INFO, APP_LABEL "message=%p; code=%d; size=%zu; type=%ld; endpoint=%d",
115                 data, (data && size) ? data[0] : 0, size, type, endpoint);
116         break;
117     }
118     case CHRE_EVENT_NANOAPP_STARTED:
119     {
120         const struct chreNanoappInfo *msg = (const struct chreNanoappInfo *)evtData;
121         const uint64_t appId = msg->appId;
122         const uint32_t version = msg->version;
123         const uint32_t instanceId = msg->instanceId;
124         chreLog(CHRE_LOG_INFO, APP_LABEL "app started; appId=%08llx; version=%ld; instanceId=%ld",
125                 appId, version, instanceId);
126         break;
127     }
128     case CHRE_EVENT_NANOAPP_STOPPED:
129     {
130         const struct chreNanoappInfo *msg = (const struct chreNanoappInfo *)evtData;
131         const uint64_t appId = msg->appId;
132         const uint32_t version = msg->version;
133         const uint32_t instanceId = msg->instanceId;
134         chreLog(CHRE_LOG_INFO, APP_LABEL "app stopped; appId=%08llx; version=%ld; instanceId=%ld",
135                 appId, version, instanceId);
136         break;
137     }
138     }
139 }
140