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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdint.h>
#include <inttypes.h>
#include <chre.h>
#define CHRE_APP_TAG "CHRE App 0: "
/* chre.h does not define printf format attribute for chreLog() */
void chreLog(enum chreLogLevel level, const char *str, ...) __attribute__ ((__format__ (__printf__, 2, 3)));
#define EVT_LOCAL_SETUP CHRE_EVENT_FIRST_USER_VALUE
struct MyTimer {
uint32_t timerId;
};
struct ExtMsg
{
uint8_t msg;
uint32_t val;
} __attribute__((packed));
static const uint64_t kOneSecond = UINT64_C(1000000000); // in nanoseconds
static uint32_t mMyTid;
static uint64_t mMyAppId;
static int cnt;
static struct MyTimer mTimer;
static void nanoappFreeEvent(uint16_t eventType, void *data)
{
chreLog(CHRE_LOG_INFO, CHRE_APP_TAG "event callback invoked: eventType=%04" PRIX16
"; data=%p\n", eventType, data);
}
// Default implementation for message free
static void nanoappFreeMessage(void *msg, size_t size)
{
chreLog(CHRE_LOG_INFO, CHRE_APP_TAG "message callback invoked: msg=%p; size=%08zu\n",
msg, size);
chreHeapFree(msg);
}
bool nanoappStart(void)
{
mMyAppId = chreGetAppId();
mMyTid = chreGetInstanceId();
cnt = 3;
chreSendEvent(EVT_LOCAL_SETUP, (void*)0x87654321, nanoappFreeEvent, mMyTid);
chreLog(CHRE_LOG_INFO, CHRE_APP_TAG "init\n");
return true;
}
void nanoappEnd(void)
{
}
void nanoappHandleEvent(uint32_t srcTid, uint16_t evtType, const void* evtData)
{
switch (evtType) {
case EVT_LOCAL_SETUP:
mTimer.timerId = chreTimerSet(kOneSecond, &mTimer, false);
chreLog(CHRE_LOG_INFO, CHRE_APP_TAG "started with tid %04" PRIX32
" timerid %" PRIu32
"\n", mMyTid, mTimer.timerId);
break;
case CHRE_EVENT_TIMER:
{
const struct MyTimer *t = (const struct MyTimer *)evtData;
struct ExtMsg *extMsg = chreHeapAlloc(sizeof(*extMsg));
chreLog(CHRE_LOG_INFO, CHRE_APP_TAG "received timer %" PRIu32
" (TIME: %" PRIu64
") cnt: %d\n", t->timerId, chreGetTime(), cnt);
extMsg->msg = 0x01;
extMsg->val = cnt;
chreSendMessageToHost(extMsg, sizeof(*extMsg), 0, nanoappFreeMessage);
if (cnt-- <= 0)
chreTimerCancel(t->timerId);
break;
}
case CHRE_EVENT_MESSAGE_FROM_HOST:
{
const struct chreMessageFromHostData *msg = (const struct chreMessageFromHostData *)evtData;
const uint8_t *data = (const uint8_t *)msg->message;
const size_t size = msg->messageSize;
chreLog(CHRE_LOG_INFO, CHRE_APP_TAG "message=%p; code=%d; size=%zu\n",
data, (data && size) ? data[0] : 0, size);
break;
}
}
}
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