blob: 8e013a03316e26212a94903a5cf6affedc159685 [file] [log] [blame]
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// #define LOG_NDEBUG 0
#define LOG_TAG "MtpDeviceJNI"
#include "utils/Log.h"
#include <stdio.h>
#include <assert.h>
#include <limits.h>
#include <unistd.h>
#include <fcntl.h>
#include "jni.h"
#include "JNIHelp.h"
#include "android_runtime/AndroidRuntime.h"
#include "android_runtime/Log.h"
#include "private/android_filesystem_config.h"
#include "MtpTypes.h"
#include "MtpDevice.h"
#include "MtpDeviceInfo.h"
#include "MtpStorageInfo.h"
#include "MtpObjectInfo.h"
using namespace android;
// ----------------------------------------------------------------------------
static jfieldID field_context;
jclass clazz_deviceInfo;
jclass clazz_storageInfo;
jclass clazz_objectInfo;
jmethodID constructor_deviceInfo;
jmethodID constructor_storageInfo;
jmethodID constructor_objectInfo;
// MtpDeviceInfo fields
static jfieldID field_deviceInfo_manufacturer;
static jfieldID field_deviceInfo_model;
static jfieldID field_deviceInfo_version;
static jfieldID field_deviceInfo_serialNumber;
// MtpStorageInfo fields
static jfieldID field_storageInfo_storageId;
static jfieldID field_storageInfo_maxCapacity;
static jfieldID field_storageInfo_freeSpace;
static jfieldID field_storageInfo_description;
static jfieldID field_storageInfo_volumeIdentifier;
// MtpObjectInfo fields
static jfieldID field_objectInfo_handle;
static jfieldID field_objectInfo_storageId;
static jfieldID field_objectInfo_format;
static jfieldID field_objectInfo_protectionStatus;
static jfieldID field_objectInfo_compressedSize;
static jfieldID field_objectInfo_thumbFormat;
static jfieldID field_objectInfo_thumbCompressedSize;
static jfieldID field_objectInfo_thumbPixWidth;
static jfieldID field_objectInfo_thumbPixHeight;
static jfieldID field_objectInfo_imagePixWidth;
static jfieldID field_objectInfo_imagePixHeight;
static jfieldID field_objectInfo_imagePixDepth;
static jfieldID field_objectInfo_parent;
static jfieldID field_objectInfo_associationType;
static jfieldID field_objectInfo_associationDesc;
static jfieldID field_objectInfo_sequenceNumber;
static jfieldID field_objectInfo_name;
static jfieldID field_objectInfo_dateCreated;
static jfieldID field_objectInfo_dateModified;
static jfieldID field_objectInfo_keywords;
MtpDevice* get_device_from_object(JNIEnv* env, jobject javaDevice)
{
return (MtpDevice*)env->GetLongField(javaDevice, field_context);
}
static void checkAndClearExceptionFromCallback(JNIEnv* env, const char* methodName) {
if (env->ExceptionCheck()) {
ALOGE("An exception was thrown by callback '%s'.", methodName);
LOGE_EX(env);
env->ExceptionClear();
}
}
// ----------------------------------------------------------------------------
static jboolean
android_mtp_MtpDevice_open(JNIEnv *env, jobject thiz, jstring deviceName, jint fd)
{
const char *deviceNameStr = env->GetStringUTFChars(deviceName, NULL);
if (deviceNameStr == NULL) {
return JNI_FALSE;
}
MtpDevice* device = MtpDevice::open(deviceNameStr, fd);
env->ReleaseStringUTFChars(deviceName, deviceNameStr);
if (device)
env->SetLongField(thiz, field_context, (jlong)device);
return (jboolean)(device != NULL);
}
static void
android_mtp_MtpDevice_close(JNIEnv *env, jobject thiz)
{
MtpDevice* device = get_device_from_object(env, thiz);
if (device) {
device->close();
delete device;
env->SetLongField(thiz, field_context, 0);
}
}
static jobject
android_mtp_MtpDevice_get_device_info(JNIEnv *env, jobject thiz)
{
MtpDevice* device = get_device_from_object(env, thiz);
if (!device) {
ALOGD("android_mtp_MtpDevice_get_device_info device is null");
return NULL;
}
MtpDeviceInfo* deviceInfo = device->getDeviceInfo();
if (!deviceInfo) {
ALOGD("android_mtp_MtpDevice_get_device_info deviceInfo is null");
return NULL;
}
jobject info = env->NewObject(clazz_deviceInfo, constructor_deviceInfo);
if (info == NULL) {
ALOGE("Could not create a MtpDeviceInfo object");
delete deviceInfo;
return NULL;
}
if (deviceInfo->mManufacturer)
env->SetObjectField(info, field_deviceInfo_manufacturer,
env->NewStringUTF(deviceInfo->mManufacturer));
if (deviceInfo->mModel)
env->SetObjectField(info, field_deviceInfo_model,
env->NewStringUTF(deviceInfo->mModel));
if (deviceInfo->mVersion)
env->SetObjectField(info, field_deviceInfo_version,
env->NewStringUTF(deviceInfo->mVersion));
if (deviceInfo->mSerial)
env->SetObjectField(info, field_deviceInfo_serialNumber,
env->NewStringUTF(deviceInfo->mSerial));
delete deviceInfo;
return info;
}
static jintArray
android_mtp_MtpDevice_get_storage_ids(JNIEnv *env, jobject thiz)
{
MtpDevice* device = get_device_from_object(env, thiz);
if (!device)
return NULL;
MtpStorageIDList* storageIDs = device->getStorageIDs();
if (!storageIDs)
return NULL;
int length = storageIDs->size();
jintArray array = env->NewIntArray(length);
// FIXME is this cast safe?
env->SetIntArrayRegion(array, 0, length, (const jint *)storageIDs->array());
delete storageIDs;
return array;
}
static jobject
android_mtp_MtpDevice_get_storage_info(JNIEnv *env, jobject thiz, jint storageID)
{
MtpDevice* device = get_device_from_object(env, thiz);
if (!device)
return NULL;
MtpStorageInfo* storageInfo = device->getStorageInfo(storageID);
if (!storageInfo)
return NULL;
jobject info = env->NewObject(clazz_storageInfo, constructor_storageInfo);
if (info == NULL) {
ALOGE("Could not create a MtpStorageInfo object");
delete storageInfo;
return NULL;
}
if (storageInfo->mStorageID)
env->SetIntField(info, field_storageInfo_storageId, storageInfo->mStorageID);
if (storageInfo->mMaxCapacity)
env->SetLongField(info, field_storageInfo_maxCapacity, storageInfo->mMaxCapacity);
if (storageInfo->mFreeSpaceBytes)
env->SetLongField(info, field_storageInfo_freeSpace, storageInfo->mFreeSpaceBytes);
if (storageInfo->mStorageDescription)
env->SetObjectField(info, field_storageInfo_description,
env->NewStringUTF(storageInfo->mStorageDescription));
if (storageInfo->mVolumeIdentifier)
env->SetObjectField(info, field_storageInfo_volumeIdentifier,
env->NewStringUTF(storageInfo->mVolumeIdentifier));
delete storageInfo;
return info;
}
static jintArray
android_mtp_MtpDevice_get_object_handles(JNIEnv *env, jobject thiz,
jint storageID, jint format, jint objectID)
{
MtpDevice* device = get_device_from_object(env, thiz);
if (!device)
return NULL;
MtpObjectHandleList* handles = device->getObjectHandles(storageID, format, objectID);
if (!handles)
return NULL;
int length = handles->size();
jintArray array = env->NewIntArray(length);
// FIXME is this cast safe?
env->SetIntArrayRegion(array, 0, length, (const jint *)handles->array());
delete handles;
return array;
}
static jobject
android_mtp_MtpDevice_get_object_info(JNIEnv *env, jobject thiz, jint objectID)
{
MtpDevice* device = get_device_from_object(env, thiz);
if (!device)
return NULL;
MtpObjectInfo* objectInfo = device->getObjectInfo(objectID);
if (!objectInfo)
return NULL;
jobject info = env->NewObject(clazz_objectInfo, constructor_objectInfo);
if (info == NULL) {
ALOGE("Could not create a MtpObjectInfo object");
delete objectInfo;
return NULL;
}
if (objectInfo->mHandle)
env->SetIntField(info, field_objectInfo_handle, objectInfo->mHandle);
if (objectInfo->mStorageID)
env->SetIntField(info, field_objectInfo_storageId, objectInfo->mStorageID);
if (objectInfo->mFormat)
env->SetIntField(info, field_objectInfo_format, objectInfo->mFormat);
if (objectInfo->mProtectionStatus)
env->SetIntField(info, field_objectInfo_protectionStatus, objectInfo->mProtectionStatus);
if (objectInfo->mCompressedSize)
env->SetIntField(info, field_objectInfo_compressedSize, objectInfo->mCompressedSize);
if (objectInfo->mThumbFormat)
env->SetIntField(info, field_objectInfo_thumbFormat, objectInfo->mThumbFormat);
if (objectInfo->mThumbCompressedSize)
env->SetIntField(info, field_objectInfo_thumbCompressedSize, objectInfo->mThumbCompressedSize);
if (objectInfo->mThumbPixWidth)
env->SetIntField(info, field_objectInfo_thumbPixWidth, objectInfo->mThumbPixWidth);
if (objectInfo->mThumbPixHeight)
env->SetIntField(info, field_objectInfo_thumbPixHeight, objectInfo->mThumbPixHeight);
if (objectInfo->mImagePixWidth)
env->SetIntField(info, field_objectInfo_imagePixWidth, objectInfo->mImagePixWidth);
if (objectInfo->mImagePixHeight)
env->SetIntField(info, field_objectInfo_imagePixHeight, objectInfo->mImagePixHeight);
if (objectInfo->mImagePixDepth)
env->SetIntField(info, field_objectInfo_imagePixDepth, objectInfo->mImagePixDepth);
if (objectInfo->mParent)
env->SetIntField(info, field_objectInfo_parent, objectInfo->mParent);
if (objectInfo->mAssociationType)
env->SetIntField(info, field_objectInfo_associationType, objectInfo->mAssociationType);
if (objectInfo->mAssociationDesc)
env->SetIntField(info, field_objectInfo_associationDesc, objectInfo->mAssociationDesc);
if (objectInfo->mSequenceNumber)
env->SetIntField(info, field_objectInfo_sequenceNumber, objectInfo->mSequenceNumber);
if (objectInfo->mName)
env->SetObjectField(info, field_objectInfo_name, env->NewStringUTF(objectInfo->mName));
if (objectInfo->mDateCreated)
env->SetLongField(info, field_objectInfo_dateCreated, objectInfo->mDateCreated * 1000LL);
if (objectInfo->mDateModified)
env->SetLongField(info, field_objectInfo_dateModified, objectInfo->mDateModified * 1000LL);
if (objectInfo->mKeywords)
env->SetObjectField(info, field_objectInfo_keywords,
env->NewStringUTF(objectInfo->mKeywords));
delete objectInfo;
return info;
}
struct get_object_callback_data {
JNIEnv *env;
jbyteArray array;
};
static bool get_object_callback(void* data, int offset, int length, void* clientData)
{
get_object_callback_data* cbData = (get_object_callback_data *)clientData;
cbData->env->SetByteArrayRegion(cbData->array, offset, length, (jbyte *)data);
return true;
}
static jbyteArray
android_mtp_MtpDevice_get_object(JNIEnv *env, jobject thiz, jint objectID, jint objectSize)
{
MtpDevice* device = get_device_from_object(env, thiz);
if (!device)
return NULL;
jbyteArray array = env->NewByteArray(objectSize);
if (!array) {
jniThrowException(env, "java/lang/OutOfMemoryError", NULL);
return NULL;
}
get_object_callback_data data;
data.env = env;
data.array = array;
if (device->readObject(objectID, get_object_callback, objectSize, &data))
return array;
return NULL;
}
static jbyteArray
android_mtp_MtpDevice_get_thumbnail(JNIEnv *env, jobject thiz, jint objectID)
{
MtpDevice* device = get_device_from_object(env, thiz);
if (!device)
return NULL;
int length;
void* thumbnail = device->getThumbnail(objectID, length);
if (! thumbnail)
return NULL;
jbyteArray array = env->NewByteArray(length);
env->SetByteArrayRegion(array, 0, length, (const jbyte *)thumbnail);
free(thumbnail);
return array;
}
static jboolean
android_mtp_MtpDevice_delete_object(JNIEnv *env, jobject thiz, jint object_id)
{
MtpDevice* device = get_device_from_object(env, thiz);
if (device && device->deleteObject(object_id)) {
return JNI_TRUE;
} else {
return JNI_FALSE;
}
}
static jlong
android_mtp_MtpDevice_get_parent(JNIEnv *env, jobject thiz, jint object_id)
{
MtpDevice* device = get_device_from_object(env, thiz);
if (device)
return (jlong)device->getParent(object_id);
else
return -1;
}
static jlong
android_mtp_MtpDevice_get_storage_id(JNIEnv *env, jobject thiz, jint object_id)
{
MtpDevice* device = get_device_from_object(env, thiz);
if (device)
return (jlong)device->getStorageID(object_id);
else
return -1;
}
static jboolean
android_mtp_MtpDevice_import_file(JNIEnv *env, jobject thiz, jint object_id, jstring dest_path)
{
MtpDevice* device = get_device_from_object(env, thiz);
if (device) {
const char *destPathStr = env->GetStringUTFChars(dest_path, NULL);
if (destPathStr == NULL) {
return JNI_FALSE;
}
jboolean result = device->readObject(object_id, destPathStr, AID_SDCARD_RW, 0664);
env->ReleaseStringUTFChars(dest_path, destPathStr);
return result;
}
return JNI_FALSE;
}
// ----------------------------------------------------------------------------
static JNINativeMethod gMethods[] = {
{"native_open", "(Ljava/lang/String;I)Z",
(void *)android_mtp_MtpDevice_open},
{"native_close", "()V", (void *)android_mtp_MtpDevice_close},
{"native_get_device_info", "()Landroid/mtp/MtpDeviceInfo;",
(void *)android_mtp_MtpDevice_get_device_info},
{"native_get_storage_ids", "()[I", (void *)android_mtp_MtpDevice_get_storage_ids},
{"native_get_storage_info", "(I)Landroid/mtp/MtpStorageInfo;",
(void *)android_mtp_MtpDevice_get_storage_info},
{"native_get_object_handles","(III)[I",
(void *)android_mtp_MtpDevice_get_object_handles},
{"native_get_object_info", "(I)Landroid/mtp/MtpObjectInfo;",
(void *)android_mtp_MtpDevice_get_object_info},
{"native_get_object", "(II)[B",(void *)android_mtp_MtpDevice_get_object},
{"native_get_thumbnail", "(I)[B",(void *)android_mtp_MtpDevice_get_thumbnail},
{"native_delete_object", "(I)Z", (void *)android_mtp_MtpDevice_delete_object},
{"native_get_parent", "(I)J", (void *)android_mtp_MtpDevice_get_parent},
{"native_get_storage_id", "(I)J", (void *)android_mtp_MtpDevice_get_storage_id},
{"native_import_file", "(ILjava/lang/String;)Z",
(void *)android_mtp_MtpDevice_import_file},
};
static const char* const kClassPathName = "android/mtp/MtpDevice";
int register_android_mtp_MtpDevice(JNIEnv *env)
{
jclass clazz;
ALOGD("register_android_mtp_MtpDevice\n");
clazz = env->FindClass("android/mtp/MtpDeviceInfo");
if (clazz == NULL) {
ALOGE("Can't find android/mtp/MtpDeviceInfo");
return -1;
}
constructor_deviceInfo = env->GetMethodID(clazz, "<init>", "()V");
if (constructor_deviceInfo == NULL) {
ALOGE("Can't find android/mtp/MtpDeviceInfo constructor");
return -1;
}
field_deviceInfo_manufacturer = env->GetFieldID(clazz, "mManufacturer", "Ljava/lang/String;");
if (field_deviceInfo_manufacturer == NULL) {
ALOGE("Can't find MtpDeviceInfo.mManufacturer");
return -1;
}
field_deviceInfo_model = env->GetFieldID(clazz, "mModel", "Ljava/lang/String;");
if (field_deviceInfo_model == NULL) {
ALOGE("Can't find MtpDeviceInfo.mModel");
return -1;
}
field_deviceInfo_version = env->GetFieldID(clazz, "mVersion", "Ljava/lang/String;");
if (field_deviceInfo_version == NULL) {
ALOGE("Can't find MtpDeviceInfo.mVersion");
return -1;
}
field_deviceInfo_serialNumber = env->GetFieldID(clazz, "mSerialNumber", "Ljava/lang/String;");
if (field_deviceInfo_serialNumber == NULL) {
ALOGE("Can't find MtpDeviceInfo.mSerialNumber");
return -1;
}
clazz_deviceInfo = (jclass)env->NewGlobalRef(clazz);
clazz = env->FindClass("android/mtp/MtpStorageInfo");
if (clazz == NULL) {
ALOGE("Can't find android/mtp/MtpStorageInfo");
return -1;
}
constructor_storageInfo = env->GetMethodID(clazz, "<init>", "()V");
if (constructor_storageInfo == NULL) {
ALOGE("Can't find android/mtp/MtpStorageInfo constructor");
return -1;
}
field_storageInfo_storageId = env->GetFieldID(clazz, "mStorageId", "I");
if (field_storageInfo_storageId == NULL) {
ALOGE("Can't find MtpStorageInfo.mStorageId");
return -1;
}
field_storageInfo_maxCapacity = env->GetFieldID(clazz, "mMaxCapacity", "J");
if (field_storageInfo_maxCapacity == NULL) {
ALOGE("Can't find MtpStorageInfo.mMaxCapacity");
return -1;
}
field_storageInfo_freeSpace = env->GetFieldID(clazz, "mFreeSpace", "J");
if (field_storageInfo_freeSpace == NULL) {
ALOGE("Can't find MtpStorageInfo.mFreeSpace");
return -1;
}
field_storageInfo_description = env->GetFieldID(clazz, "mDescription", "Ljava/lang/String;");
if (field_storageInfo_description == NULL) {
ALOGE("Can't find MtpStorageInfo.mDescription");
return -1;
}
field_storageInfo_volumeIdentifier = env->GetFieldID(clazz, "mVolumeIdentifier", "Ljava/lang/String;");
if (field_storageInfo_volumeIdentifier == NULL) {
ALOGE("Can't find MtpStorageInfo.mVolumeIdentifier");
return -1;
}
clazz_storageInfo = (jclass)env->NewGlobalRef(clazz);
clazz = env->FindClass("android/mtp/MtpObjectInfo");
if (clazz == NULL) {
ALOGE("Can't find android/mtp/MtpObjectInfo");
return -1;
}
constructor_objectInfo = env->GetMethodID(clazz, "<init>", "()V");
if (constructor_objectInfo == NULL) {
ALOGE("Can't find android/mtp/MtpObjectInfo constructor");
return -1;
}
field_objectInfo_handle = env->GetFieldID(clazz, "mHandle", "I");
if (field_objectInfo_handle == NULL) {
ALOGE("Can't find MtpObjectInfo.mHandle");
return -1;
}
field_objectInfo_storageId = env->GetFieldID(clazz, "mStorageId", "I");
if (field_objectInfo_storageId == NULL) {
ALOGE("Can't find MtpObjectInfo.mStorageId");
return -1;
}
field_objectInfo_format = env->GetFieldID(clazz, "mFormat", "I");
if (field_objectInfo_format == NULL) {
ALOGE("Can't find MtpObjectInfo.mFormat");
return -1;
}
field_objectInfo_protectionStatus = env->GetFieldID(clazz, "mProtectionStatus", "I");
if (field_objectInfo_protectionStatus == NULL) {
ALOGE("Can't find MtpObjectInfo.mProtectionStatus");
return -1;
}
field_objectInfo_compressedSize = env->GetFieldID(clazz, "mCompressedSize", "I");
if (field_objectInfo_compressedSize == NULL) {
ALOGE("Can't find MtpObjectInfo.mCompressedSize");
return -1;
}
field_objectInfo_thumbFormat = env->GetFieldID(clazz, "mThumbFormat", "I");
if (field_objectInfo_thumbFormat == NULL) {
ALOGE("Can't find MtpObjectInfo.mThumbFormat");
return -1;
}
field_objectInfo_thumbCompressedSize = env->GetFieldID(clazz, "mThumbCompressedSize", "I");
if (field_objectInfo_thumbCompressedSize == NULL) {
ALOGE("Can't find MtpObjectInfo.mThumbCompressedSize");
return -1;
}
field_objectInfo_thumbPixWidth = env->GetFieldID(clazz, "mThumbPixWidth", "I");
if (field_objectInfo_thumbPixWidth == NULL) {
ALOGE("Can't find MtpObjectInfo.mThumbPixWidth");
return -1;
}
field_objectInfo_thumbPixHeight = env->GetFieldID(clazz, "mThumbPixHeight", "I");
if (field_objectInfo_thumbPixHeight == NULL) {
ALOGE("Can't find MtpObjectInfo.mThumbPixHeight");
return -1;
}
field_objectInfo_imagePixWidth = env->GetFieldID(clazz, "mImagePixWidth", "I");
if (field_objectInfo_imagePixWidth == NULL) {
ALOGE("Can't find MtpObjectInfo.mImagePixWidth");
return -1;
}
field_objectInfo_imagePixHeight = env->GetFieldID(clazz, "mImagePixHeight", "I");
if (field_objectInfo_imagePixHeight == NULL) {
ALOGE("Can't find MtpObjectInfo.mImagePixHeight");
return -1;
}
field_objectInfo_imagePixDepth = env->GetFieldID(clazz, "mImagePixDepth", "I");
if (field_objectInfo_imagePixDepth == NULL) {
ALOGE("Can't find MtpObjectInfo.mImagePixDepth");
return -1;
}
field_objectInfo_parent = env->GetFieldID(clazz, "mParent", "I");
if (field_objectInfo_parent == NULL) {
ALOGE("Can't find MtpObjectInfo.mParent");
return -1;
}
field_objectInfo_associationType = env->GetFieldID(clazz, "mAssociationType", "I");
if (field_objectInfo_associationType == NULL) {
ALOGE("Can't find MtpObjectInfo.mAssociationType");
return -1;
}
field_objectInfo_associationDesc = env->GetFieldID(clazz, "mAssociationDesc", "I");
if (field_objectInfo_associationDesc == NULL) {
ALOGE("Can't find MtpObjectInfo.mAssociationDesc");
return -1;
}
field_objectInfo_sequenceNumber = env->GetFieldID(clazz, "mSequenceNumber", "I");
if (field_objectInfo_sequenceNumber == NULL) {
ALOGE("Can't find MtpObjectInfo.mSequenceNumber");
return -1;
}
field_objectInfo_name = env->GetFieldID(clazz, "mName", "Ljava/lang/String;");
if (field_objectInfo_name == NULL) {
ALOGE("Can't find MtpObjectInfo.mName");
return -1;
}
field_objectInfo_dateCreated = env->GetFieldID(clazz, "mDateCreated", "J");
if (field_objectInfo_dateCreated == NULL) {
ALOGE("Can't find MtpObjectInfo.mDateCreated");
return -1;
}
field_objectInfo_dateModified = env->GetFieldID(clazz, "mDateModified", "J");
if (field_objectInfo_dateModified == NULL) {
ALOGE("Can't find MtpObjectInfo.mDateModified");
return -1;
}
field_objectInfo_keywords = env->GetFieldID(clazz, "mKeywords", "Ljava/lang/String;");
if (field_objectInfo_keywords == NULL) {
ALOGE("Can't find MtpObjectInfo.mKeywords");
return -1;
}
clazz_objectInfo = (jclass)env->NewGlobalRef(clazz);
clazz = env->FindClass("android/mtp/MtpDevice");
if (clazz == NULL) {
ALOGE("Can't find android/mtp/MtpDevice");
return -1;
}
field_context = env->GetFieldID(clazz, "mNativeContext", "J");
if (field_context == NULL) {
ALOGE("Can't find MtpDevice.mNativeContext");
return -1;
}
return AndroidRuntime::registerNativeMethods(env,
"android/mtp/MtpDevice", gMethods, NELEM(gMethods));
}