void MtpProperty::writeValue(MtpDataPacket& packet, MtpPropertyValue& value) {
MtpStringBuffer stringBuffer;
switch (mType) {
case MTP_TYPE_INT8:
case MTP_TYPE_AINT8:
packet.putInt8(value.u.i8);
break;
case MTP_TYPE_UINT8:
case MTP_TYPE_AUINT8:
packet.putUInt8(value.u.u8);
break;
case MTP_TYPE_INT16:
case MTP_TYPE_AINT16:
packet.putInt16(value.u.i16);
break;
case MTP_TYPE_UINT16:
case MTP_TYPE_AUINT16:
packet.putUInt16(value.u.u16);
break;
case MTP_TYPE_INT32:
case MTP_TYPE_AINT32:
packet.putInt32(value.u.i32);
break;
case MTP_TYPE_UINT32:
case MTP_TYPE_AUINT32:
packet.putUInt32(value.u.u32);
break;
case MTP_TYPE_INT64:
case MTP_TYPE_AINT64:
packet.putInt64(value.u.i64);
break;
case MTP_TYPE_UINT64:
case MTP_TYPE_AUINT64:
packet.putUInt64(value.u.u64);
break;
case MTP_TYPE_INT128:
case MTP_TYPE_AINT128:
packet.putInt128(value.u.i128);
break;
case MTP_TYPE_UINT128:
case MTP_TYPE_AUINT128:
packet.putUInt128(value.u.u128);
break;
case MTP_TYPE_STR:
if (value.str)
packet.putString(value.str);
else
packet.putEmptyString();
break;
default:
LOG(ERROR) << "unknown type "
<< std::hex << mType << std::dec
<< " in MtpProperty::writeValue";
}
}
void MtpProperty::write(MtpDataPacket& packet) {
bool deviceProp = isDeviceProperty();
packet.putUInt16(mCode);
packet.putUInt16(mType);
packet.putUInt8(mWriteable ? 1 : 0);
switch (mType) {
case MTP_TYPE_AINT8:
case MTP_TYPE_AUINT8:
case MTP_TYPE_AINT16:
case MTP_TYPE_AUINT16:
case MTP_TYPE_AINT32:
case MTP_TYPE_AUINT32:
case MTP_TYPE_AINT64:
case MTP_TYPE_AUINT64:
case MTP_TYPE_AINT128:
case MTP_TYPE_AUINT128:
writeArrayValues(packet, mDefaultArrayValues, mDefaultArrayLength);
if (deviceProp)
writeArrayValues(packet, mCurrentArrayValues, mCurrentArrayLength);
break;
default:
writeValue(packet, mDefaultValue);
if (deviceProp)
writeValue(packet, mCurrentValue);
}
packet.putUInt32(mGroupCode);
if (!deviceProp)
packet.putUInt8(mFormFlag);
if (mFormFlag == kFormRange) {
writeValue(packet, mMinimumValue);
writeValue(packet, mMaximumValue);
writeValue(packet, mStepSize);
} else if (mFormFlag == kFormEnum) {
packet.putUInt16(mEnumLength);
for (int i = 0; i < mEnumLength; i++)
writeValue(packet, mEnumValues[i]);
}
}
int MtpStorage::getObjectPropertyList(MtpObjectHandle handle, uint32_t format, uint32_t property, int groupCode, int depth, MtpDataPacket& packet) {
MTPD("MtpStorage::getObjectPropertyList handle: %u, format: %x, property: %x\n", handle, format, property);
if (groupCode != 0)
{
MTPE("getObjectPropertyList: groupCode unsupported\n");
return -1; // TODO: RESPONSE_SPECIFICATION_BY_GROUP_UNSUPPORTED
}
// TODO: support all the special stuff, like:
// handle == 0 -> all objects at the root level
// handle == 0xffffffff -> all objects (on all storages? how could we support that?)
// format == 0 -> all formats, otherwise filter by ObjectFormatCode
// property == 0xffffffff -> all properties except those with group code 0xffffffff
// if property == 0 then use groupCode
// groupCode == 0 -> return Specification_By_Group_Unsupported
// depth == 0xffffffff -> all objects incl. and below handle
std::vector<PropEntry> results;
if (handle == 0xffffffff) {
// TODO: all object on all storages (needs a different design, result packet needs to be built by server instead of storage)
} else if (handle == 0) {
// all objects at the root level
Tree* root = mtpmap[0];
MtpObjectHandleList list;
root->getmtpids(&list);
for (MtpObjectHandleList::iterator it = list.begin(); it != list.end(); ++it) {
Node* node = root->findNode(*it);
if (!node) {
MTPE("BUG: node not found for root entry with handle %u\n", *it);
break;
}
queryNodeProperties(results, node, property, groupCode, mStorageID);
}
} else {
// single object
Node* node = findNode(handle);
if (!node) {
// Item is not on this storage device
return -1;
}
queryNodeProperties(results, node, property, groupCode, mStorageID);
}
MTPD("count: %u\n", results.size());
packet.putUInt32(results.size());
for (size_t i = 0; i < results.size(); ++i) {
PropEntry& p = results[i];
MTPD("handle: %u, propertyCode: %x = %s, datatype: %x, value: %llu\n",
p.handle, p.property, MtpDebug::getObjectPropCodeName(p.property),
p.datatype, p.intvalue);
packet.putUInt32(p.handle);
packet.putUInt16(p.property);
packet.putUInt16(p.datatype);
switch (p.datatype) {
case MTP_TYPE_INT8:
MTPD("MTP_TYPE_INT8\n");
packet.putInt8(p.intvalue);
break;
case MTP_TYPE_UINT8:
MTPD("MTP_TYPE_UINT8\n");
packet.putUInt8(p.intvalue);
break;
case MTP_TYPE_INT16:
MTPD("MTP_TYPE_INT16\n");
packet.putInt16(p.intvalue);
break;
case MTP_TYPE_UINT16:
MTPD("MTP_TYPE_UINT16\n");
packet.putUInt16(p.intvalue);
break;
case MTP_TYPE_INT32:
MTPD("MTP_TYPE_INT32\n");
packet.putInt32(p.intvalue);
break;
case MTP_TYPE_UINT32:
MTPD("MTP_TYPE_UINT32\n");
packet.putUInt32(p.intvalue);
break;
case MTP_TYPE_INT64:
MTPD("MTP_TYPE_INT64\n");
packet.putInt64(p.intvalue);
break;
case MTP_TYPE_UINT64:
MTPD("MTP_TYPE_UINT64\n");
packet.putUInt64(p.intvalue);
break;
case MTP_TYPE_INT128:
MTPD("MTP_TYPE_INT128\n");
packet.putInt128(p.intvalue);
break;
case MTP_TYPE_UINT128:
MTPD("MTP_TYPE_UINT128\n");
packet.putUInt128(p.intvalue);
break;
case MTP_TYPE_STR:
MTPD("MTP_TYPE_STR: %s\n", p.strvalue.c_str());
packet.putString(p.strvalue.c_str());
break;
default:
MTPE("bad or unsupported data type: %x in MyMtpDatabase::getObjectPropertyList", p.datatype);
break;
}
}
return 0;
}
MtpResponseCode MyMtpDatabase::getObjectPropertyList(MtpObjectHandle handle,
uint32_t format, uint32_t property,
int groupCode, int depth,
MtpDataPacket& packet) {
JNIEnv* env = AndroidRuntime::getJNIEnv();
jobject list = env->CallObjectMethod(mDatabase, method_getObjectPropertyList,
(jlong)handle, (jint)format, (jlong)property, (jint)groupCode, (jint)depth);
checkAndClearExceptionFromCallback(env, __FUNCTION__);
if (!list)
return MTP_RESPONSE_GENERAL_ERROR;
int count = env->GetIntField(list, field_mCount);
MtpResponseCode result = env->GetIntField(list, field_mResult);
packet.putUInt32(count);
if (count > 0) {
jintArray objectHandlesArray = (jintArray)env->GetObjectField(list, field_mObjectHandles);
jintArray propertyCodesArray = (jintArray)env->GetObjectField(list, field_mPropertyCodes);
jintArray dataTypesArray = (jintArray)env->GetObjectField(list, field_mDataTypes);
jlongArray longValuesArray = (jlongArray)env->GetObjectField(list, field_mLongValues);
jobjectArray stringValuesArray = (jobjectArray)env->GetObjectField(list, field_mStringValues);
jint* objectHandles = env->GetIntArrayElements(objectHandlesArray, 0);
jint* propertyCodes = env->GetIntArrayElements(propertyCodesArray, 0);
jint* dataTypes = env->GetIntArrayElements(dataTypesArray, 0);
jlong* longValues = (longValuesArray ? env->GetLongArrayElements(longValuesArray, 0) : NULL);
for (int i = 0; i < count; i++) {
packet.putUInt32(objectHandles[i]);
packet.putUInt16(propertyCodes[i]);
int type = dataTypes[i];
packet.putUInt16(type);
switch (type) {
case MTP_TYPE_INT8:
packet.putInt8(longValues[i]);
break;
case MTP_TYPE_UINT8:
packet.putUInt8(longValues[i]);
break;
case MTP_TYPE_INT16:
packet.putInt16(longValues[i]);
break;
case MTP_TYPE_UINT16:
packet.putUInt16(longValues[i]);
break;
case MTP_TYPE_INT32:
packet.putInt32(longValues[i]);
break;
case MTP_TYPE_UINT32:
packet.putUInt32(longValues[i]);
break;
case MTP_TYPE_INT64:
packet.putInt64(longValues[i]);
break;
case MTP_TYPE_UINT64:
packet.putUInt64(longValues[i]);
break;
case MTP_TYPE_INT128:
packet.putInt128(longValues[i]);
break;
case MTP_TYPE_UINT128:
packet.putUInt128(longValues[i]);
break;
case MTP_TYPE_STR: {
jstring value = (jstring)env->GetObjectArrayElement(stringValuesArray, i);
const char *valueStr = (value ? env->GetStringUTFChars(value, NULL) : NULL);
if (valueStr) {
packet.putString(valueStr);
env->ReleaseStringUTFChars(value, valueStr);
} else {
packet.putEmptyString();
}
env->DeleteLocalRef(value);
break;
}
default:
ALOGE("bad or unsupported data type in MyMtpDatabase::getObjectPropertyList");
break;
}
}
env->ReleaseIntArrayElements(objectHandlesArray, objectHandles, 0);
env->ReleaseIntArrayElements(propertyCodesArray, propertyCodes, 0);
env->ReleaseIntArrayElements(dataTypesArray, dataTypes, 0);
if (longValues)
env->ReleaseLongArrayElements(longValuesArray, longValues, 0);
env->DeleteLocalRef(objectHandlesArray);
env->DeleteLocalRef(propertyCodesArray);
env->DeleteLocalRef(dataTypesArray);
if (longValuesArray)
env->DeleteLocalRef(longValuesArray);
if (stringValuesArray)
env->DeleteLocalRef(stringValuesArray);
}
env->DeleteLocalRef(list);
checkAndClearExceptionFromCallback(env, __FUNCTION__);
return result;
}
MtpResponseCode MyMtpDatabase::getDevicePropertyValue(MtpDeviceProperty property,
MtpDataPacket& packet) {
int type;
if (!getDevicePropertyInfo(property, type))
return MTP_RESPONSE_DEVICE_PROP_NOT_SUPPORTED;
JNIEnv* env = AndroidRuntime::getJNIEnv();
jint result = env->CallIntMethod(mDatabase, method_getDeviceProperty,
(jint)property, mLongBuffer, mStringBuffer);
if (result != MTP_RESPONSE_OK) {
checkAndClearExceptionFromCallback(env, __FUNCTION__);
return result;
}
jlong* longValues = env->GetLongArrayElements(mLongBuffer, 0);
jlong longValue = longValues[0];
env->ReleaseLongArrayElements(mLongBuffer, longValues, 0);
switch (type) {
case MTP_TYPE_INT8:
packet.putInt8(longValue);
break;
case MTP_TYPE_UINT8:
packet.putUInt8(longValue);
break;
case MTP_TYPE_INT16:
packet.putInt16(longValue);
break;
case MTP_TYPE_UINT16:
packet.putUInt16(longValue);
break;
case MTP_TYPE_INT32:
packet.putInt32(longValue);
break;
case MTP_TYPE_UINT32:
packet.putUInt32(longValue);
break;
case MTP_TYPE_INT64:
packet.putInt64(longValue);
break;
case MTP_TYPE_UINT64:
packet.putUInt64(longValue);
break;
case MTP_TYPE_INT128:
packet.putInt128(longValue);
break;
case MTP_TYPE_UINT128:
packet.putInt128(longValue);
break;
case MTP_TYPE_STR:
{
jchar* str = env->GetCharArrayElements(mStringBuffer, 0);
packet.putString(str);
env->ReleaseCharArrayElements(mStringBuffer, str, 0);
break;
}
default:
ALOGE("unsupported type in getDevicePropertyValue\n");
return MTP_RESPONSE_INVALID_DEVICE_PROP_FORMAT;
}
checkAndClearExceptionFromCallback(env, __FUNCTION__);
return MTP_RESPONSE_OK;
}
MtpResponseCode MyMtpDatabase::getObjectPropertyValue(MtpObjectHandle handle,
MtpObjectProperty property,
MtpDataPacket& packet) {
JNIEnv* env = AndroidRuntime::getJNIEnv();
jobject list = env->CallObjectMethod(mDatabase, method_getObjectPropertyList,
(jlong)handle, 0, (jlong)property, 0, 0);
MtpResponseCode result = env->GetIntField(list, field_mResult);
int count = env->GetIntField(list, field_mCount);
if (result == MTP_RESPONSE_OK && count != 1)
result = MTP_RESPONSE_GENERAL_ERROR;
if (result == MTP_RESPONSE_OK) {
jintArray objectHandlesArray = (jintArray)env->GetObjectField(list, field_mObjectHandles);
jintArray propertyCodesArray = (jintArray)env->GetObjectField(list, field_mPropertyCodes);
jintArray dataTypesArray = (jintArray)env->GetObjectField(list, field_mDataTypes);
jlongArray longValuesArray = (jlongArray)env->GetObjectField(list, field_mLongValues);
jobjectArray stringValuesArray = (jobjectArray)env->GetObjectField(list, field_mStringValues);
jint* objectHandles = env->GetIntArrayElements(objectHandlesArray, 0);
jint* propertyCodes = env->GetIntArrayElements(propertyCodesArray, 0);
jint* dataTypes = env->GetIntArrayElements(dataTypesArray, 0);
jlong* longValues = (longValuesArray ? env->GetLongArrayElements(longValuesArray, 0) : NULL);
int type = dataTypes[0];
jlong longValue = (longValues ? longValues[0] : 0);
// special case date properties, which are strings to MTP
// but stored internally as a uint64
if (property == MTP_PROPERTY_DATE_MODIFIED || property == MTP_PROPERTY_DATE_ADDED) {
char date[20];
formatDateTime(longValue, date, sizeof(date));
packet.putString(date);
goto out;
}
// release date is stored internally as just the year
if (property == MTP_PROPERTY_ORIGINAL_RELEASE_DATE) {
char date[20];
snprintf(date, sizeof(date), "%04" PRId64 "0101T000000", longValue);
packet.putString(date);
goto out;
}
switch (type) {
case MTP_TYPE_INT8:
packet.putInt8(longValue);
break;
case MTP_TYPE_UINT8:
packet.putUInt8(longValue);
break;
case MTP_TYPE_INT16:
packet.putInt16(longValue);
break;
case MTP_TYPE_UINT16:
packet.putUInt16(longValue);
break;
case MTP_TYPE_INT32:
packet.putInt32(longValue);
break;
case MTP_TYPE_UINT32:
packet.putUInt32(longValue);
break;
case MTP_TYPE_INT64:
packet.putInt64(longValue);
break;
case MTP_TYPE_UINT64:
packet.putUInt64(longValue);
break;
case MTP_TYPE_INT128:
packet.putInt128(longValue);
break;
case MTP_TYPE_UINT128:
packet.putInt128(longValue);
break;
case MTP_TYPE_STR:
{
jstring stringValue = (jstring)env->GetObjectArrayElement(stringValuesArray, 0);
const char* str = (stringValue ? env->GetStringUTFChars(stringValue, NULL) : NULL);
if (stringValue) {
packet.putString(str);
env->ReleaseStringUTFChars(stringValue, str);
} else {
packet.putEmptyString();
}
env->DeleteLocalRef(stringValue);
break;
}
default:
ALOGE("unsupported type in getObjectPropertyValue\n");
result = MTP_RESPONSE_INVALID_OBJECT_PROP_FORMAT;
}
out:
env->ReleaseIntArrayElements(objectHandlesArray, objectHandles, 0);
env->ReleaseIntArrayElements(propertyCodesArray, propertyCodes, 0);
env->ReleaseIntArrayElements(dataTypesArray, dataTypes, 0);
if (longValues)
env->ReleaseLongArrayElements(longValuesArray, longValues, 0);
env->DeleteLocalRef(objectHandlesArray);
env->DeleteLocalRef(propertyCodesArray);
env->DeleteLocalRef(dataTypesArray);
if (longValuesArray)
env->DeleteLocalRef(longValuesArray);
if (stringValuesArray)
env->DeleteLocalRef(stringValuesArray);
}
env->DeleteLocalRef(list);
checkAndClearExceptionFromCallback(env, __FUNCTION__);
return result;
}