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/*
* 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_TAG "MtpProperty"
#include "utils/Log.h"
#include "MtpDataPacket.h"
#include "MtpProperty.h"
#include "MtpStringBuffer.h"
#include "MtpUtils.h"
namespace android {
MtpProperty::MtpProperty()
: mCode(0),
mType(0),
mWriteable(false),
mDefaultArrayLength(0),
mDefaultArrayValues(NULL),
mCurrentArrayLength(0),
mCurrentArrayValues(NULL),
mFormFlag(kFormNone),
mEnumLength(0),
mEnumValues(NULL)
{
mDefaultValue.str = NULL;
mCurrentValue.str = NULL;
mMinimumValue.str = NULL;
mMaximumValue.str = NULL;
}
MtpProperty::~MtpProperty() {
if (mType == MTP_TYPE_STR) {
// free all strings
free(mDefaultValue.str);
free(mCurrentValue.str);
free(mMinimumValue.str);
free(mMaximumValue.str);
if (mDefaultArrayValues) {
for (int i = 0; i < mDefaultArrayLength; i++)
free(mDefaultArrayValues[i].str);
}
if (mCurrentArrayValues) {
for (int i = 0; i < mCurrentArrayLength; i++)
free(mCurrentArrayValues[i].str);
}
if (mEnumValues) {
for (int i = 0; i < mEnumLength; i++)
free(mEnumValues[i].str);
}
}
delete[] mDefaultArrayValues;
delete[] mCurrentArrayValues;
delete[] mEnumValues;
}
void MtpProperty::read(MtpDataPacket& packet) {
MtpStringBuffer string;
mCode = packet.getUInt16();
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);
mCurrentArrayValues = readArrayValues(packet, mCurrentArrayLength);
break;
default:
readValue(packet, mDefaultValue);
readValue(packet, mCurrentValue);
}
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]);
}
}
void MtpProperty::print() {
LOGD("MtpProperty %04X\n", mCode);
LOGD(" type %04X\n", mType);
LOGD(" writeable %s\n", (mWriteable ? "true" : "false"));
}
void MtpProperty::readValue(MtpDataPacket& packet, MtpPropertyValue& value) {
switch (mType) {
case MTP_TYPE_INT8:
value.i8 = packet.getInt8();
break;
case MTP_TYPE_UINT8:
value.u8 = packet.getUInt8();
break;
case MTP_TYPE_INT16:
value.i16 = packet.getInt16();
break;
case MTP_TYPE_UINT16:
value.u16 = packet.getUInt16();
break;
case MTP_TYPE_INT32:
value.i32 = packet.getInt32();
break;
case MTP_TYPE_UINT32:
value.u32 = packet.getUInt32();
break;
case MTP_TYPE_INT64:
value.i64 = packet.getInt64();
break;
case MTP_TYPE_UINT64:
value.u64 = packet.getUInt64();
break;
case MTP_TYPE_INT128:
packet.getInt128(value.i128);
break;
case MTP_TYPE_UINT128:
packet.getUInt128(value.u128);
break;
default:
fprintf(stderr, "unknown type %d in MtpProperty::readValue\n", mType);
}
}
MtpPropertyValue* MtpProperty::readArrayValues(MtpDataPacket& packet, int& length) {
length = packet.getUInt32();
if (length == 0)
return NULL;
MtpPropertyValue* result = new MtpPropertyValue[length];
for (int i = 0; i < length; i++)
readValue(packet, result[i]);
return result;
}
} // namespace android
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