42c03e579a
The ALooper API now uses an explicit "identifier" for the integer that is returned rather than implicitly using the fd. This allows the APIs that had the fd to be a little more sane. Change-Id: I8507f535ad484c0bdc4a1bd016d87bb09acd7ff0
156 lines
4.3 KiB
C++
156 lines
4.3 KiB
C++
/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "sensor"
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#include <utils/Log.h>
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#include <android/looper.h>
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#include <android/sensor.h>
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#include <utils/RefBase.h>
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#include <utils/PollLoop.h>
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#include <utils/Timers.h>
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#include <gui/Sensor.h>
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#include <gui/SensorManager.h>
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#include <gui/SensorEventQueue.h>
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#include <poll.h>
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using android::sp;
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using android::Sensor;
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using android::SensorManager;
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using android::SensorEventQueue;
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using android::String8;
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/*****************************************************************************/
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ASensorManager* ASensorManager_getInstance()
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{
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return &SensorManager::getInstance();
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}
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int ASensorManager_getSensorList(ASensorManager* manager,
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ASensorList* list)
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{
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Sensor const* const* l;
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int c = static_cast<SensorManager*>(manager)->getSensorList(&l);
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if (list) {
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*list = reinterpret_cast<ASensorList>(l);
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}
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return c;
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}
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ASensor const* ASensorManager_getDefaultSensor(ASensorManager* manager, int type)
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{
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return static_cast<SensorManager*>(manager)->getDefaultSensor(type);
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}
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ASensorEventQueue* ASensorManager_createEventQueue(ASensorManager* manager,
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ALooper* looper, int ident, ALooper_callbackFunc* callback, void* data)
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{
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sp<SensorEventQueue> queue =
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static_cast<SensorManager*>(manager)->createEventQueue();
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if (queue != 0) {
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ALooper_addFd(looper, queue->getFd(), ident, POLLIN, callback, data);
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queue->looper = looper;
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queue->incStrong(manager);
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}
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return static_cast<ASensorEventQueue*>(queue.get());
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}
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int ASensorManager_destroyEventQueue(ASensorManager* manager,
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ASensorEventQueue* inQueue)
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{
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sp<SensorEventQueue> queue = static_cast<SensorEventQueue*>(inQueue);
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ALooper_removeFd(queue->looper, queue->getFd());
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queue->decStrong(manager);
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return 0;
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}
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/*****************************************************************************/
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int ASensorEventQueue_enableSensor(ASensorEventQueue* queue, ASensor const* sensor)
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{
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return static_cast<SensorEventQueue*>(queue)->enableSensor(
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static_cast<Sensor const*>(sensor));
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}
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int ASensorEventQueue_disableSensor(ASensorEventQueue* queue, ASensor const* sensor)
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{
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return static_cast<SensorEventQueue*>(queue)->disableSensor(
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static_cast<Sensor const*>(sensor));
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}
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int ASensorEventQueue_setEventRate(ASensorEventQueue* queue, ASensor const* sensor,
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int32_t usec)
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{
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return static_cast<SensorEventQueue*>(queue)->setEventRate(
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static_cast<Sensor const*>(sensor), us2ns(usec));
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}
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int ASensorEventQueue_hasEvents(ASensorEventQueue* queue)
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{
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struct pollfd pfd;
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pfd.fd = static_cast<SensorEventQueue*>(queue)->getFd();
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pfd.events = POLLIN;
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pfd.revents = 0;
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int nfd = poll(&pfd, 1, 0);
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if (nfd < 0)
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return -errno;
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if (pfd.revents != POLLIN)
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return -1;
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return (nfd == 0) ? 0 : 1;
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}
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ssize_t ASensorEventQueue_getEvents(ASensorEventQueue* queue,
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ASensorEvent* events, size_t count)
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{
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return static_cast<SensorEventQueue*>(queue)->read(events, count);
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}
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/*****************************************************************************/
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const char* ASensor_getName(ASensor const* sensor)
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{
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return static_cast<Sensor const*>(sensor)->getName().string();
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}
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const char* ASensor_getVendor(ASensor const* sensor)
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{
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return static_cast<Sensor const*>(sensor)->getVendor().string();
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}
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int ASensor_getType(ASensor const* sensor)
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{
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return static_cast<Sensor const*>(sensor)->getType();
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}
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float ASensor_getResolution(ASensor const* sensor)
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{
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return static_cast<Sensor const*>(sensor)->getResolution();
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}
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int ASensor_getMinDelay(ASensor const* sensor)
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{
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return static_cast<Sensor const*>(sensor)->getMinDelay();
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}
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