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; |
| 39 | |
Mike Lockwood | d21eac9 | 2010-07-03 00:44:05 -0400 | [diff] [blame] | 40 | // in android_media_MtpDatabase.cpp |
| 41 | extern MtpDatabase* getMtpDatabase(JNIEnv *env, jobject database); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 42 | |
| 43 | // ---------------------------------------------------------------------------- |
| 44 | |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame^] | 45 | #ifdef HAVE_ANDROID_OS |
| 46 | |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 47 | static bool ExceptionCheck(void* env) |
| 48 | { |
| 49 | return ((JNIEnv *)env)->ExceptionCheck(); |
| 50 | } |
| 51 | |
| 52 | class MtpThread : public Thread { |
| 53 | private: |
Mike Lockwood | d21eac9 | 2010-07-03 00:44:05 -0400 | [diff] [blame] | 54 | MtpDatabase* mDatabase; |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 55 | MtpServer* mServer; |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 56 | String8 mStoragePath; |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 57 | bool mDone; |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 58 | Mutex mMutex; |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 59 | |
| 60 | public: |
Mike Lockwood | d21eac9 | 2010-07-03 00:44:05 -0400 | [diff] [blame] | 61 | MtpThread(MtpDatabase* database, const char* storagePath) |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 62 | : mDatabase(database), mServer(NULL), mStoragePath(storagePath), mDone(false) |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 63 | { |
| 64 | } |
| 65 | |
| 66 | virtual bool threadLoop() { |
| 67 | int fd = open("/dev/mtp_usb", O_RDWR); |
| 68 | printf("open returned %d\n", fd); |
| 69 | if (fd < 0) { |
| 70 | LOGE("could not open MTP driver\n"); |
| 71 | return false; |
| 72 | } |
| 73 | |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 74 | mMutex.lock(); |
| 75 | mServer = new MtpServer(fd, mDatabase, AID_SDCARD_RW, 0664, 0775); |
| 76 | mServer->addStorage(mStoragePath); |
| 77 | mMutex.unlock(); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 78 | |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 79 | LOGD("MtpThread mServer->run"); |
| 80 | mServer->run(); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 81 | close(fd); |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 82 | |
| 83 | mMutex.lock(); |
| 84 | delete mServer; |
| 85 | mServer = NULL; |
| 86 | mMutex.unlock(); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 87 | |
| 88 | bool done = mDone; |
| 89 | if (done) |
| 90 | delete this; |
| 91 | LOGD("threadLoop returning %s", (done ? "false" : "true")); |
| 92 | return !done; |
| 93 | } |
| 94 | |
| 95 | void setDone() { mDone = true; } |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 96 | |
| 97 | void sendObjectAdded(MtpObjectHandle handle) { |
| 98 | mMutex.lock(); |
| 99 | if (mServer) |
| 100 | mServer->sendObjectAdded(handle); |
| 101 | else |
| 102 | LOGE("sendObjectAdded called while disconnected\n"); |
| 103 | mMutex.unlock(); |
| 104 | } |
| 105 | |
| 106 | void sendObjectRemoved(MtpObjectHandle handle) { |
| 107 | mMutex.lock(); |
| 108 | if (mServer) |
| 109 | mServer->sendObjectRemoved(handle); |
| 110 | else |
| 111 | LOGE("sendObjectRemoved called while disconnected\n"); |
| 112 | mMutex.unlock(); |
| 113 | } |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 114 | }; |
| 115 | |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame^] | 116 | #endif // HAVE_ANDROID_OS |
| 117 | |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 118 | static void |
Mike Lockwood | d21eac9 | 2010-07-03 00:44:05 -0400 | [diff] [blame] | 119 | android_media_MtpServer_setup(JNIEnv *env, jobject thiz, jobject javaDatabase, jstring storagePath) |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 120 | { |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame^] | 121 | #ifdef HAVE_ANDROID_OS |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 122 | LOGD("setup\n"); |
| 123 | |
Mike Lockwood | d21eac9 | 2010-07-03 00:44:05 -0400 | [diff] [blame] | 124 | MtpDatabase* database = getMtpDatabase(env, javaDatabase); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 125 | const char *storagePathStr = env->GetStringUTFChars(storagePath, NULL); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 126 | |
Mike Lockwood | d21eac9 | 2010-07-03 00:44:05 -0400 | [diff] [blame] | 127 | MtpThread* thread = new MtpThread(database, storagePathStr); |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 128 | env->SetIntField(thiz, field_context, (int)thread); |
| 129 | |
| 130 | env->ReleaseStringUTFChars(storagePath, storagePathStr); |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame^] | 131 | #endif |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 132 | } |
| 133 | |
| 134 | static void |
| 135 | android_media_MtpServer_finalize(JNIEnv *env, jobject thiz) |
| 136 | { |
| 137 | LOGD("finalize\n"); |
| 138 | } |
| 139 | |
| 140 | |
| 141 | static void |
| 142 | android_media_MtpServer_start(JNIEnv *env, jobject thiz) |
| 143 | { |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame^] | 144 | #ifdef HAVE_ANDROID_OS |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 145 | LOGD("start\n"); |
| 146 | MtpThread *thread = (MtpThread *)env->GetIntField(thiz, field_context); |
| 147 | thread->run("MtpThread"); |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame^] | 148 | #endif // HAVE_ANDROID_OS |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | static void |
| 152 | android_media_MtpServer_stop(JNIEnv *env, jobject thiz) |
| 153 | { |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame^] | 154 | #ifdef HAVE_ANDROID_OS |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 155 | LOGD("stop\n"); |
| 156 | MtpThread *thread = (MtpThread *)env->GetIntField(thiz, field_context); |
| 157 | if (thread) { |
| 158 | thread->setDone(); |
| 159 | env->SetIntField(thiz, field_context, 0); |
| 160 | } |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame^] | 161 | #endif |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 162 | } |
| 163 | |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 164 | static void |
| 165 | android_media_MtpServer_send_object_added(JNIEnv *env, jobject thiz, jint handle) |
| 166 | { |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame^] | 167 | #ifdef HAVE_ANDROID_OS |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 168 | LOGD("send_object_added %d\n", handle); |
| 169 | MtpThread *thread = (MtpThread *)env->GetIntField(thiz, field_context); |
| 170 | if (thread) |
| 171 | thread->sendObjectAdded(handle); |
| 172 | else |
| 173 | LOGE("sendObjectAdded called while disconnected\n"); |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame^] | 174 | #endif |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 175 | } |
| 176 | |
| 177 | static void |
| 178 | android_media_MtpServer_send_object_removed(JNIEnv *env, jobject thiz, jint handle) |
| 179 | { |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame^] | 180 | #ifdef HAVE_ANDROID_OS |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 181 | LOGD("send_object_removed %d\n", handle); |
| 182 | MtpThread *thread = (MtpThread *)env->GetIntField(thiz, field_context); |
| 183 | if (thread) |
| 184 | thread->sendObjectRemoved(handle); |
| 185 | else |
| 186 | LOGE("sendObjectRemoved called while disconnected\n"); |
Mike Lockwood | ff164a7 | 2010-07-15 15:01:17 -0400 | [diff] [blame^] | 187 | #endif |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 188 | } |
| 189 | |
Mike Lockwood | 98ef64e | 2010-06-29 16:42:13 -0400 | [diff] [blame] | 190 | // ---------------------------------------------------------------------------- |
| 191 | |
| 192 | static JNINativeMethod gMethods[] = { |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 193 | {"native_setup", "(Landroid/media/MtpDatabase;Ljava/lang/String;)V", |
Mike Lockwood | d21eac9 | 2010-07-03 00:44:05 -0400 | [diff] [blame] | 194 | (void *)android_media_MtpServer_setup}, |
Mike Lockwood | be125a5 | 2010-07-12 18:54:16 -0400 | [diff] [blame] | 195 | {"native_finalize", "()V", (void *)android_media_MtpServer_finalize}, |
| 196 | {"native_start", "()V", (void *)android_media_MtpServer_start}, |
| 197 | {"native_stop", "()V", (void *)android_media_MtpServer_stop}, |
| 198 | {"native_send_object_added", "(I)V", (void *)android_media_MtpServer_send_object_added}, |
| 199 | {"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] | 200 | }; |
| 201 | |
| 202 | static const char* const kClassPathName = "android/media/MtpServer"; |
| 203 | |
| 204 | int register_android_media_MtpServer(JNIEnv *env) |
| 205 | { |
| 206 | jclass clazz; |
| 207 | |
| 208 | LOGD("register_android_media_MtpServer\n"); |
| 209 | |
| 210 | clazz = env->FindClass("android/media/MtpServer"); |
| 211 | if (clazz == NULL) { |
| 212 | LOGE("Can't find android/media/MtpServer"); |
| 213 | return -1; |
| 214 | } |
| 215 | field_context = env->GetFieldID(clazz, "mNativeContext", "I"); |
| 216 | if (field_context == NULL) { |
| 217 | LOGE("Can't find MtpServer.mNativeContext"); |
| 218 | return -1; |
| 219 | } |
| 220 | |
| 221 | return AndroidRuntime::registerNativeMethods(env, |
| 222 | "android/media/MtpServer", gMethods, NELEM(gMethods)); |
| 223 | } |