bool MtpProperty::read(MtpDataPacket& packet) {
uint8_t temp8;
if (!packet.getUInt16(mCode)) return false;
bool deviceProp = isDeviceProperty();
if (!packet.getUInt16(mType)) return false;
if (!packet.getUInt8(temp8)) return false;
mWriteable = (temp8 == 1);
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:
mDefaultArrayValues = readArrayValues(packet, mDefaultArrayLength);
if (!mDefaultArrayValues) return false;
if (deviceProp) {
mCurrentArrayValues = readArrayValues(packet, mCurrentArrayLength);
if (!mCurrentArrayValues) return false;
}
break;
default:
if (!readValue(packet, mDefaultValue)) return false;
if (deviceProp) {
if (!readValue(packet, mCurrentValue)) return false;
}
}
if (!deviceProp) {
if (!packet.getUInt32(mGroupCode)) return false;
}
if (!packet.getUInt8(mFormFlag)) return false;
if (mFormFlag == kFormRange) {
if (!readValue(packet, mMinimumValue)) return false;
if (!readValue(packet, mMaximumValue)) return false;
if (!readValue(packet, mStepSize)) return false;
} else if (mFormFlag == kFormEnum) {
if (!packet.getUInt16(mEnumLength)) return false;
mEnumValues = new MtpPropertyValue[mEnumLength];
for (int i = 0; i < mEnumLength; i++) {
if (!readValue(packet, mEnumValues[i])) return false;
}
}
return true;
}
MtpResponseCode MyMtpDatabase::setObjectPropertyValue(MtpObjectHandle handle,
MtpObjectProperty property,
MtpDataPacket& packet) {
int type;
if (!getObjectPropertyInfo(property, type))
return MTP_RESPONSE_OBJECT_PROP_NOT_SUPPORTED;
JNIEnv* env = AndroidRuntime::getJNIEnv();
jlong longValue = 0;
jstring stringValue = NULL;
switch (type) {
case MTP_TYPE_INT8:
longValue = packet.getInt8();
break;
case MTP_TYPE_UINT8:
longValue = packet.getUInt8();
break;
case MTP_TYPE_INT16:
longValue = packet.getInt16();
break;
case MTP_TYPE_UINT16:
longValue = packet.getUInt16();
break;
case MTP_TYPE_INT32:
longValue = packet.getInt32();
break;
case MTP_TYPE_UINT32:
longValue = packet.getUInt32();
break;
case MTP_TYPE_INT64:
longValue = packet.getInt64();
break;
case MTP_TYPE_UINT64:
longValue = packet.getUInt64();
break;
case MTP_TYPE_STR:
{
MtpStringBuffer buffer;
packet.getString(buffer);
stringValue = env->NewStringUTF((const char *)buffer);
break;
}
default:
ALOGE("unsupported type in setObjectPropertyValue\n");
return MTP_RESPONSE_INVALID_OBJECT_PROP_FORMAT;
}
jint result = env->CallIntMethod(mDatabase, method_setObjectProperty,
(jint)handle, (jint)property, longValue, stringValue);
if (stringValue)
env->DeleteLocalRef(stringValue);
checkAndClearExceptionFromCallback(env, __FUNCTION__);
return result;
}
bool MtpProperty::readValue(MtpDataPacket& packet, MtpPropertyValue& value) {
MtpStringBuffer stringBuffer;
switch (mType) {
case MTP_TYPE_INT8:
case MTP_TYPE_AINT8:
if (!packet.getInt8(value.u.i8)) return false;
break;
case MTP_TYPE_UINT8:
case MTP_TYPE_AUINT8:
if (!packet.getUInt8(value.u.u8)) return false;
break;
case MTP_TYPE_INT16:
case MTP_TYPE_AINT16:
if (!packet.getInt16(value.u.i16)) return false;
break;
case MTP_TYPE_UINT16:
case MTP_TYPE_AUINT16:
if (!packet.getUInt16(value.u.u16)) return false;
break;
case MTP_TYPE_INT32:
case MTP_TYPE_AINT32:
if (!packet.getInt32(value.u.i32)) return false;
break;
case MTP_TYPE_UINT32:
case MTP_TYPE_AUINT32:
if (!packet.getUInt32(value.u.u32)) return false;
break;
case MTP_TYPE_INT64:
case MTP_TYPE_AINT64:
if (!packet.getInt64(value.u.i64)) return false;
break;
case MTP_TYPE_UINT64:
case MTP_TYPE_AUINT64:
if (!packet.getUInt64(value.u.u64)) return false;
break;
case MTP_TYPE_INT128:
case MTP_TYPE_AINT128:
if (!packet.getInt128(value.u.i128)) return false;
break;
case MTP_TYPE_UINT128:
case MTP_TYPE_AUINT128:
if (!packet.getUInt128(value.u.u128)) return false;
break;
case MTP_TYPE_STR:
if (!packet.getString(stringBuffer)) return false;
value.str = strdup(stringBuffer);
break;
default:
ALOGE("unknown type %04X in MtpProperty::readValue", mType);
return false;
}
return true;
}
void MtpProperty::readValue(MtpDataPacket& packet, MtpPropertyValue& value) {
MtpStringBuffer stringBuffer;
switch (mType) {
case MTP_TYPE_INT8:
case MTP_TYPE_AINT8:
value.u.i8 = packet.getInt8();
break;
case MTP_TYPE_UINT8:
case MTP_TYPE_AUINT8:
value.u.u8 = packet.getUInt8();
break;
case MTP_TYPE_INT16:
case MTP_TYPE_AINT16:
value.u.i16 = packet.getInt16();
break;
case MTP_TYPE_UINT16:
case MTP_TYPE_AUINT16:
value.u.u16 = packet.getUInt16();
break;
case MTP_TYPE_INT32:
case MTP_TYPE_AINT32:
value.u.i32 = packet.getInt32();
break;
case MTP_TYPE_UINT32:
case MTP_TYPE_AUINT32:
value.u.u32 = packet.getUInt32();
break;
case MTP_TYPE_INT64:
case MTP_TYPE_AINT64:
value.u.i64 = packet.getInt64();
break;
case MTP_TYPE_UINT64:
case MTP_TYPE_AUINT64:
value.u.u64 = packet.getUInt64();
break;
case MTP_TYPE_INT128:
case MTP_TYPE_AINT128:
packet.getInt128(value.u.i128);
break;
case MTP_TYPE_UINT128:
case MTP_TYPE_AUINT128:
packet.getUInt128(value.u.u128);
break;
case MTP_TYPE_STR:
packet.getString(stringBuffer);
value.str = strdup(stringBuffer);
break;
default:
LOG(ERROR) << "unknown type "
<< std::hex << mType << std::dec
<< " in MtpProperty::readValue";
}
}
void MtpProperty::read(MtpDataPacket& packet) {
mCode = packet.getUInt16();
bool deviceProp = isDeviceProperty();
mType = packet.getUInt16();
mWriteable = (packet.getUInt8() == 1);
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:
mDefaultArrayValues = readArrayValues(packet, mDefaultArrayLength);
if (deviceProp)
mCurrentArrayValues = readArrayValues(packet, mCurrentArrayLength);
break;
default:
readValue(packet, mDefaultValue);
if (deviceProp)
readValue(packet, mCurrentValue);
}
if (!deviceProp)
mGroupCode = packet.getUInt32();
mFormFlag = packet.getUInt8();
if (mFormFlag == kFormRange) {
readValue(packet, mMinimumValue);
readValue(packet, mMaximumValue);
readValue(packet, mStepSize);
} else if (mFormFlag == kFormEnum) {
mEnumLength = packet.getUInt16();
mEnumValues = new MtpPropertyValue[mEnumLength];
for (int i = 0; i < mEnumLength; i++)
readValue(packet, mEnumValues[i]);
}
}