Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 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 "MtpServerJNI" |
| 18 | #include "utils/Log.h" |
| 19 | |
| 20 | #include <stdio.h> |
| 21 | #include <assert.h> |
| 22 | #include <limits.h> |
| 23 | #include <unistd.h> |
| 24 | #include <fcntl.h> |
| 25 | #include <utils/threads.h> |
| 26 | |
| 27 | #include "jni.h" |
| 28 | #include "JNIHelp.h" |
| 29 | #include "android_runtime/AndroidRuntime.h" |
Mike Lockwood | dad6927 | 2010-07-02 15:15:07 -0400 | [diff] [blame] | 30 | #include "private/android_filesystem_config.h" |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 31 | |
| 32 | #include "MtpServer.h" |
| 33 | |
Mike Lockwood | 81ea83d | 2010-06-30 17:49:41 -0400 | [diff] [blame] | 34 | using namespace android; |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 35 | |
| 36 | // ---------------------------------------------------------------------------- |
| 37 | |
| 38 | static jfieldID field_context; |
Mike Lockwood | 23ee42f | 2010-08-03 15:17:55 -0400 | [diff] [blame] | 39 | static Mutex sMutex; |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 40 | |
Mike Lockwood | d21eac9 | 2010-07-03 00:44:05 -0400 | [diff] [blame] | 41 | // in android_media_MtpDatabase.cpp |
| 42 | extern MtpDatabase* getMtpDatabase(JNIEnv *env, jobject database); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 43 | |
| 44 | // ---------------------------------------------------------------------------- |
| 45 | |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame] | 46 | #ifdef HAVE_ANDROID_OS |
| 47 | |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 48 | static bool ExceptionCheck(void* env) |
| 49 | { |
| 50 | return ((JNIEnv *)env)->ExceptionCheck(); |
| 51 | } |
| 52 | |
| 53 | class MtpThread : public Thread { |
| 54 | private: |
Mike Lockwood | d21eac9 | 2010-07-03 00:44:05 -0400 | [diff] [blame] | 55 | MtpDatabase* mDatabase; |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 56 | MtpServer* mServer; |
Mike Lockwood | 23ee42f | 2010-08-03 15:17:55 -0400 | [diff] [blame] | 57 | String8 mStoragePath; |
Mike Lockwood | 23ee42f | 2010-08-03 15:17:55 -0400 | [diff] [blame] | 58 | jobject mJavaServer; |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 59 | |
| 60 | public: |
Mike Lockwood | 23ee42f | 2010-08-03 15:17:55 -0400 | [diff] [blame] | 61 | MtpThread(MtpDatabase* database, const char* storagePath, jobject javaServer) |
| 62 | : mDatabase(database), |
| 63 | mServer(NULL), |
| 64 | mStoragePath(storagePath), |
Mike Lockwood | 23ee42f | 2010-08-03 15:17:55 -0400 | [diff] [blame] | 65 | mJavaServer(javaServer) |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 66 | { |
| 67 | } |
| 68 | |
| 69 | virtual bool threadLoop() { |
Mike Lockwood | 2b2bff5 | 2010-08-18 12:32:26 -0400 | [diff] [blame^] | 70 | int fd = open("/dev/mtp_usb", O_RDWR); |
| 71 | printf("open returned %d\n", fd); |
| 72 | if (fd < 0) { |
| 73 | LOGE("could not open MTP driver\n"); |
| 74 | return false; |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 75 | } |
| 76 | |
Mike Lockwood | 23ee42f | 2010-08-03 15:17:55 -0400 | [diff] [blame] | 77 | sMutex.lock(); |
Mike Lockwood | 2b2bff5 | 2010-08-18 12:32:26 -0400 | [diff] [blame^] | 78 | mServer = new MtpServer(fd, mDatabase, AID_SDCARD_RW, 0664, 0775); |
| 79 | mServer->addStorage(mStoragePath); |
| 80 | sMutex.unlock(); |
| 81 | |
| 82 | LOGD("MtpThread mServer->run"); |
| 83 | mServer->run(); |
| 84 | close(fd); |
| 85 | |
| 86 | sMutex.lock(); |
| 87 | delete mServer; |
| 88 | mServer = NULL; |
| 89 | |
Mike Lockwood | 23ee42f | 2010-08-03 15:17:55 -0400 | [diff] [blame] | 90 | JNIEnv* env = AndroidRuntime::getJNIEnv(); |
| 91 | env->SetIntField(mJavaServer, field_context, 0); |
| 92 | env->DeleteGlobalRef(mJavaServer); |
| 93 | sMutex.unlock(); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 94 | |
Mike Lockwood | 23ee42f | 2010-08-03 15:17:55 -0400 | [diff] [blame] | 95 | LOGD("threadLoop returning"); |
| 96 | return false; |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 97 | } |
| 98 | |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 99 | void sendObjectAdded(MtpObjectHandle handle) { |
Mike Lockwood | 23ee42f | 2010-08-03 15:17:55 -0400 | [diff] [blame] | 100 | sMutex.lock(); |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 101 | if (mServer) |
| 102 | mServer->sendObjectAdded(handle); |
| 103 | else |
| 104 | LOGE("sendObjectAdded called while disconnected\n"); |
Mike Lockwood | 23ee42f | 2010-08-03 15:17:55 -0400 | [diff] [blame] | 105 | sMutex.unlock(); |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | void sendObjectRemoved(MtpObjectHandle handle) { |
Mike Lockwood | 23ee42f | 2010-08-03 15:17:55 -0400 | [diff] [blame] | 109 | sMutex.lock(); |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 110 | if (mServer) |
| 111 | mServer->sendObjectRemoved(handle); |
| 112 | else |
| 113 | LOGE("sendObjectRemoved called while disconnected\n"); |
Mike Lockwood | 23ee42f | 2010-08-03 15:17:55 -0400 | [diff] [blame] | 114 | sMutex.unlock(); |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 115 | } |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 116 | }; |
| 117 | |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame] | 118 | #endif // HAVE_ANDROID_OS |
| 119 | |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 120 | static void |
Mike Lockwood | d21eac9 | 2010-07-03 00:44:05 -0400 | [diff] [blame] | 121 | android_media_MtpServer_setup(JNIEnv *env, jobject thiz, jobject javaDatabase, jstring storagePath) |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 122 | { |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame] | 123 | #ifdef HAVE_ANDROID_OS |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 124 | LOGD("setup\n"); |
| 125 | |
Mike Lockwood | d21eac9 | 2010-07-03 00:44:05 -0400 | [diff] [blame] | 126 | MtpDatabase* database = getMtpDatabase(env, javaDatabase); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 127 | const char *storagePathStr = env->GetStringUTFChars(storagePath, NULL); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 128 | |
Mike Lockwood | 23ee42f | 2010-08-03 15:17:55 -0400 | [diff] [blame] | 129 | MtpThread* thread = new MtpThread(database, storagePathStr, env->NewGlobalRef(thiz)); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 130 | env->SetIntField(thiz, field_context, (int)thread); |
| 131 | |
| 132 | env->ReleaseStringUTFChars(storagePath, storagePathStr); |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame] | 133 | #endif |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 134 | } |
| 135 | |
| 136 | static void |
| 137 | android_media_MtpServer_finalize(JNIEnv *env, jobject thiz) |
| 138 | { |
| 139 | LOGD("finalize\n"); |
| 140 | } |
| 141 | |
| 142 | |
| 143 | static void |
| 144 | android_media_MtpServer_start(JNIEnv *env, jobject thiz) |
| 145 | { |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame] | 146 | #ifdef HAVE_ANDROID_OS |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 147 | LOGD("start\n"); |
| 148 | MtpThread *thread = (MtpThread *)env->GetIntField(thiz, field_context); |
| 149 | thread->run("MtpThread"); |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame] | 150 | #endif // HAVE_ANDROID_OS |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 151 | } |
| 152 | |
| 153 | static void |
| 154 | android_media_MtpServer_stop(JNIEnv *env, jobject thiz) |
| 155 | { |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame] | 156 | #ifdef HAVE_ANDROID_OS |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 157 | LOGD("stop\n"); |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame] | 158 | #endif |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 159 | } |
| 160 | |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 161 | static void |
| 162 | android_media_MtpServer_send_object_added(JNIEnv *env, jobject thiz, jint handle) |
| 163 | { |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame] | 164 | #ifdef HAVE_ANDROID_OS |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 165 | LOGD("send_object_added %d\n", handle); |
| 166 | MtpThread *thread = (MtpThread *)env->GetIntField(thiz, field_context); |
| 167 | if (thread) |
| 168 | thread->sendObjectAdded(handle); |
| 169 | else |
| 170 | LOGE("sendObjectAdded called while disconnected\n"); |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame] | 171 | #endif |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 172 | } |
| 173 | |
| 174 | static void |
| 175 | android_media_MtpServer_send_object_removed(JNIEnv *env, jobject thiz, jint handle) |
| 176 | { |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame] | 177 | #ifdef HAVE_ANDROID_OS |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 178 | LOGD("send_object_removed %d\n", handle); |
| 179 | MtpThread *thread = (MtpThread *)env->GetIntField(thiz, field_context); |
| 180 | if (thread) |
| 181 | thread->sendObjectRemoved(handle); |
| 182 | else |
| 183 | LOGE("sendObjectRemoved called while disconnected\n"); |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame] | 184 | #endif |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 185 | } |
| 186 | |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 187 | // ---------------------------------------------------------------------------- |
| 188 | |
| 189 | static JNINativeMethod gMethods[] = { |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 190 | {"native_setup", "(Landroid/media/MtpDatabase;Ljava/lang/String;)V", |
Mike Lockwood | d21eac9 | 2010-07-03 00:44:05 -0400 | [diff] [blame] | 191 | (void *)android_media_MtpServer_setup}, |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 192 | {"native_finalize", "()V", (void *)android_media_MtpServer_finalize}, |
| 193 | {"native_start", "()V", (void *)android_media_MtpServer_start}, |
| 194 | {"native_stop", "()V", (void *)android_media_MtpServer_stop}, |
| 195 | {"native_send_object_added", "(I)V", (void *)android_media_MtpServer_send_object_added}, |
| 196 | {"native_send_object_removed", "(I)V", (void *)android_media_MtpServer_send_object_removed}, |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 197 | }; |
| 198 | |
| 199 | static const char* const kClassPathName = "android/media/MtpServer"; |
| 200 | |
| 201 | int register_android_media_MtpServer(JNIEnv *env) |
| 202 | { |
| 203 | jclass clazz; |
| 204 | |
| 205 | LOGD("register_android_media_MtpServer\n"); |
| 206 | |
| 207 | clazz = env->FindClass("android/media/MtpServer"); |
| 208 | if (clazz == NULL) { |
| 209 | LOGE("Can't find android/media/MtpServer"); |
| 210 | return -1; |
| 211 | } |
| 212 | field_context = env->GetFieldID(clazz, "mNativeContext", "I"); |
| 213 | if (field_context == NULL) { |
| 214 | LOGE("Can't find MtpServer.mNativeContext"); |
| 215 | return -1; |
| 216 | } |
| 217 | |
| 218 | return AndroidRuntime::registerNativeMethods(env, |
| 219 | "android/media/MtpServer", gMethods, NELEM(gMethods)); |
| 220 | } |