android_hardware_SensorManager.cpp revision 9066cfe9886ac131c34d59ed0e2d287b0e3c0087
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright 2008, The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define LOG_TAG "Sensors" 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <hardware/sensors.h> 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "jni.h" 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "JNIHelp.h" 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectnamespace android { 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstruct SensorOffsets 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID name; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID vendor; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID version; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID handle; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID type; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID range; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID resolution; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID power; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} gSensorOffsets; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The method below are not thread-safe and not intended to be 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic sensors_module_t* sSensorModule = 0; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic sensors_data_device_t* sSensorDevice = 0; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jint 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectsensors_module_init(JNIEnv *env, jclass clazz) 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int err = 0; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sensors_module_t const* module; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project err = hw_get_module(SENSORS_HARDWARE_MODULE_ID, (const hw_module_t **)&module); 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (err == 0) 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sSensorModule = (sensors_module_t*)module; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return err; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jint 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectsensors_module_get_next_sensor(JNIEnv *env, jobject clazz, jobject sensor, jint next) 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sSensorModule == NULL) 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SensorOffsets& sensorOffsets = gSensorOffsets; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const struct sensor_t* list; 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = sSensorModule->get_sensors_list(sSensorModule, &list); 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (next >= count) 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project list += next; 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jstring name = env->NewStringUTF(list->name); 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jstring vendor = env->NewStringUTF(list->vendor); 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetObjectField(sensor, sensorOffsets.name, name); 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetObjectField(sensor, sensorOffsets.vendor, vendor); 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetIntField(sensor, sensorOffsets.version, list->version); 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetIntField(sensor, sensorOffsets.handle, list->handle); 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetIntField(sensor, sensorOffsets.type, list->type); 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetFloatField(sensor, sensorOffsets.range, list->maxRange); 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetFloatField(sensor, sensorOffsets.resolution, list->resolution); 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetFloatField(sensor, sensorOffsets.power, list->power); 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project next++; 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return next<count ? next : 0; 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project//---------------------------------------------------------------------------- 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jint 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectsensors_data_init(JNIEnv *env, jclass clazz) 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sSensorModule == NULL) 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int err = sensors_data_open(&sSensorModule->common, &sSensorDevice); 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return err; 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jint 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectsensors_data_uninit(JNIEnv *env, jclass clazz) 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int err = 0; 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sSensorDevice) { 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project err = sensors_data_close(sSensorDevice); 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (err == 0) 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sSensorDevice = 0; 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return err; 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jint 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectsensors_data_open(JNIEnv *env, jclass clazz, jobject fdo) 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jclass FileDescriptor = env->FindClass("java/io/FileDescriptor"); 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfieldID offset = env->GetFieldID(FileDescriptor, "descriptor", "I"); 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int fd = env->GetIntField(fdo, offset); 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return sSensorDevice->data_open(sSensorDevice, fd); // doesn't take ownership of fd 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jint 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectsensors_data_close(JNIEnv *env, jclass clazz) 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return sSensorDevice->data_close(sSensorDevice); 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jint 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectsensors_data_poll(JNIEnv *env, jclass clazz, 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfloatArray values, jintArray status, jlongArray timestamp) 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sensors_data_t data; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int res = sSensorDevice->poll(sSensorDevice, &data); 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (res >= 0) { 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint accuracy = data.vector.status; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetFloatArrayRegion(values, 0, 3, data.vector.v); 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetIntArrayRegion(status, 0, 1, &accuracy); 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetLongArrayRegion(timestamp, 0, 1, &data.time); 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return res; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic void 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectnativeClassInit (JNIEnv *_env, jclass _this) 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jclass sensorClass = _env->FindClass("android/hardware/Sensor"); 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SensorOffsets& sensorOffsets = gSensorOffsets; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sensorOffsets.name = _env->GetFieldID(sensorClass, "mName", "Ljava/lang/String;"); 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sensorOffsets.vendor = _env->GetFieldID(sensorClass, "mVendor", "Ljava/lang/String;"); 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sensorOffsets.version = _env->GetFieldID(sensorClass, "mVersion", "I"); 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sensorOffsets.handle = _env->GetFieldID(sensorClass, "mHandle", "I"); 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sensorOffsets.type = _env->GetFieldID(sensorClass, "mType", "I"); 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sensorOffsets.range = _env->GetFieldID(sensorClass, "mMaxRange", "F"); 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sensorOffsets.resolution = _env->GetFieldID(sensorClass, "mResolution","F"); 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sensorOffsets.power = _env->GetFieldID(sensorClass, "mPower", "F"); 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic JNINativeMethod gMethods[] = { 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"nativeClassInit", "()V", (void*)nativeClassInit }, 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"sensors_module_init","()I", (void*)sensors_module_init }, 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"sensors_module_get_next_sensor","(Landroid/hardware/Sensor;I)I", 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (void*)sensors_module_get_next_sensor }, 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"sensors_data_init", "()I", (void*)sensors_data_init }, 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"sensors_data_uninit", "()I", (void*)sensors_data_uninit }, 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"sensors_data_open", "(Ljava/io/FileDescriptor;)I", (void*)sensors_data_open }, 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"sensors_data_close", "()I", (void*)sensors_data_close }, 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"sensors_data_poll", "([F[I[J)I", (void*)sensors_data_poll }, 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; // namespace android 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectusing namespace android; 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint register_android_hardware_SensorManager(JNIEnv *env) 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return jniRegisterNativeMethods(env, "android/hardware/SensorManager", 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gMethods, NELEM(gMethods)); 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 174