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/*
* Copyright (C) 2009 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.
*/
#define LOG_TAG "sensor"
#include <utils/Log.h>
#include <android/looper.h>
#include <android/sensor.h>
#include <utils/RefBase.h>
#include <utils/Looper.h>
#include <utils/Timers.h>
#include <gui/Sensor.h>
#include <gui/SensorManager.h>
#include <gui/SensorEventQueue.h>
#include <poll.h>
using android::sp;
using android::Sensor;
using android::SensorManager;
using android::SensorEventQueue;
using android::String8;
/*****************************************************************************/
ASensorManager* ASensorManager_getInstance()
{
return &SensorManager::getInstance();
}
int ASensorManager_getSensorList(ASensorManager* manager,
ASensorList* list)
{
Sensor const* const* l;
int c = static_cast<SensorManager*>(manager)->getSensorList(&l);
if (list) {
*list = reinterpret_cast<ASensorList>(l);
}
return c;
}
ASensor const* ASensorManager_getDefaultSensor(ASensorManager* manager, int type)
{
return static_cast<SensorManager*>(manager)->getDefaultSensor(type);
}
ASensorEventQueue* ASensorManager_createEventQueue(ASensorManager* manager,
ALooper* looper, int ident, ALooper_callbackFunc callback, void* data)
{
sp<SensorEventQueue> queue =
static_cast<SensorManager*>(manager)->createEventQueue();
if (queue != 0) {
ALooper_addFd(looper, queue->getFd(), ident, ALOOPER_EVENT_INPUT, callback, data);
queue->looper = looper;
queue->incStrong(manager);
}
return static_cast<ASensorEventQueue*>(queue.get());
}
int ASensorManager_destroyEventQueue(ASensorManager* manager,
ASensorEventQueue* inQueue)
{
sp<SensorEventQueue> queue = static_cast<SensorEventQueue*>(inQueue);
ALooper_removeFd(queue->looper, queue->getFd());
queue->decStrong(manager);
return 0;
}
/*****************************************************************************/
int ASensorEventQueue_enableSensor(ASensorEventQueue* queue, ASensor const* sensor)
{
return static_cast<SensorEventQueue*>(queue)->enableSensor(
static_cast<Sensor const*>(sensor));
}
int ASensorEventQueue_disableSensor(ASensorEventQueue* queue, ASensor const* sensor)
{
return static_cast<SensorEventQueue*>(queue)->disableSensor(
static_cast<Sensor const*>(sensor));
}
int ASensorEventQueue_setEventRate(ASensorEventQueue* queue, ASensor const* sensor,
int32_t usec)
{
return static_cast<SensorEventQueue*>(queue)->setEventRate(
static_cast<Sensor const*>(sensor), us2ns(usec));
}
int ASensorEventQueue_hasEvents(ASensorEventQueue* queue)
{
struct pollfd pfd;
pfd.fd = static_cast<SensorEventQueue*>(queue)->getFd();
pfd.events = POLLIN;
pfd.revents = 0;
int nfd = poll(&pfd, 1, 0);
if (nfd < 0)
return -errno;
if (pfd.revents != POLLIN)
return -1;
return (nfd == 0) ? 0 : 1;
}
ssize_t ASensorEventQueue_getEvents(ASensorEventQueue* queue,
ASensorEvent* events, size_t count)
{
return static_cast<SensorEventQueue*>(queue)->read(events, count);
}
/*****************************************************************************/
const char* ASensor_getName(ASensor const* sensor)
{
return static_cast<Sensor const*>(sensor)->getName().string();
}
const char* ASensor_getVendor(ASensor const* sensor)
{
return static_cast<Sensor const*>(sensor)->getVendor().string();
}
int ASensor_getType(ASensor const* sensor)
{
return static_cast<Sensor const*>(sensor)->getType();
}
float ASensor_getResolution(ASensor const* sensor)
{
return static_cast<Sensor const*>(sensor)->getResolution();
}
int ASensor_getMinDelay(ASensor const* sensor)
{
return static_cast<Sensor const*>(sensor)->getMinDelay();
}
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