Ruben Brunk | baa4b55 | 2016-02-02 16:27:37 -0800 | [diff] [blame] | 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 | #define LOG_TAG "VrManagerService" |
| 18 | |
| 19 | #include <android_runtime/AndroidRuntime.h> |
| 20 | #include <jni.h> |
| 21 | #include <JNIHelp.h> |
| 22 | |
| 23 | #include <utils/Errors.h> |
| 24 | #include <utils/Log.h> |
| 25 | #include <hardware/hardware.h> |
| 26 | #include <hardware/vr.h> |
| 27 | |
| 28 | namespace android { |
| 29 | |
| 30 | static vr_module_t *gVrHardwareModule = NULL; |
| 31 | |
| 32 | |
| 33 | static void init_native(JNIEnv* /* env */, jclass /* clazz */) { |
| 34 | if (gVrHardwareModule != NULL) { |
| 35 | // This call path should never be hit. |
| 36 | ALOGE("%s: May not initialize VR hardware module more than once!", __FUNCTION__); |
| 37 | return; |
| 38 | } |
| 39 | |
| 40 | int err = hw_get_module(VR_HARDWARE_MODULE_ID, (hw_module_t const**)&gVrHardwareModule); |
| 41 | if (err) { |
| 42 | ALOGW("%s: Could not open VR hardware module, error %s (%d).", __FUNCTION__, |
| 43 | strerror(-err), err); |
| 44 | return; |
| 45 | } |
| 46 | |
| 47 | // Call init method if implemented. |
| 48 | if (gVrHardwareModule->init) { |
| 49 | gVrHardwareModule->init(gVrHardwareModule); |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | static void setVrMode_native(JNIEnv* /* env */, jclass /* clazz */, jboolean enabled) { |
| 54 | if (gVrHardwareModule == NULL) { |
| 55 | // There is no VR hardware module implemented, do nothing. |
| 56 | return; |
| 57 | } |
| 58 | |
| 59 | // Call set_vr_mode method, this must be implemented if the HAL exists. |
| 60 | gVrHardwareModule->set_vr_mode(gVrHardwareModule, static_cast<bool>(enabled)); |
| 61 | } |
| 62 | |
| 63 | static const JNINativeMethod method_table[] = { |
| 64 | { "initializeNative", "()V", (void*)init_native }, |
| 65 | { "setVrModeNative", "(Z)V", (void*)setVrMode_native }, |
| 66 | }; |
| 67 | |
| 68 | int register_android_server_vr_VrManagerService(JNIEnv *env) |
| 69 | { |
| 70 | return jniRegisterNativeMethods(env, "com/android/server/vr/VrManagerService", |
| 71 | method_table, NELEM(method_table)); |
| 72 | } |
| 73 | |
| 74 | }; // namespace android |