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-rw-r--r--mtp/ffs/MtpDataPacket.h127
1 files changed, 127 insertions, 0 deletions
diff --git a/mtp/ffs/MtpDataPacket.h b/mtp/ffs/MtpDataPacket.h
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+++ b/mtp/ffs/MtpDataPacket.h
@@ -0,0 +1,127 @@
+/*
+ * 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.
+ */
+
+#ifndef _MTP_DATA_PACKET_H
+#define _MTP_DATA_PACKET_H
+
+#include "MtpPacket.h"
+#include "mtp.h"
+
+struct usb_device;
+struct usb_request;
+
+class IMtpHandle;
+class MtpStringBuffer;
+
+class MtpDataPacket : public MtpPacket {
+private:
+ // current offset for get/put methods
+ size_t mOffset;
+
+public:
+ MtpDataPacket();
+ virtual ~MtpDataPacket();
+
+ virtual void reset();
+
+ void setOperationCode(MtpOperationCode code);
+ void setTransactionID(MtpTransactionID id);
+
+ inline const uint8_t* getData() const { return mBuffer + MTP_CONTAINER_HEADER_SIZE; }
+
+ bool getUInt8(uint8_t& value);
+ inline bool getInt8(int8_t& value) { return getUInt8((uint8_t&)value); }
+ bool getUInt16(uint16_t& value);
+ inline bool getInt16(int16_t& value) { return getUInt16((uint16_t&)value); }
+ bool getUInt32(uint32_t& value);
+ inline bool getInt32(int32_t& value) { return getUInt32((uint32_t&)value); }
+ bool getUInt64(uint64_t& value);
+ inline bool getInt64(int64_t& value) { return getUInt64((uint64_t&)value); }
+ bool getUInt128(uint128_t& value);
+ inline bool getInt128(int128_t& value) { return getUInt128((uint128_t&)value); }
+ bool getString(MtpStringBuffer& string);
+
+ Int8List* getAInt8();
+ UInt8List* getAUInt8();
+ Int16List* getAInt16();
+ UInt16List* getAUInt16();
+ Int32List* getAInt32();
+ UInt32List* getAUInt32();
+ Int64List* getAInt64();
+ UInt64List* getAUInt64();
+
+ void putInt8(int8_t value);
+ void putUInt8(uint8_t value);
+ void putInt16(int16_t value);
+ void putUInt16(uint16_t value);
+ void putInt32(int32_t value);
+ void putUInt32(uint32_t value);
+ void putInt64(int64_t value);
+ void putUInt64(uint64_t value);
+ void putInt128(const int128_t& value);
+ void putUInt128(const uint128_t& value);
+ void putInt128(int64_t value);
+ void putUInt128(uint64_t value);
+
+ void putAInt8(const int8_t* values, int count);
+ void putAUInt8(const uint8_t* values, int count);
+ void putAInt16(const int16_t* values, int count);
+ void putAUInt16(const uint16_t* values, int count);
+ void putAUInt16(const UInt16List* values);
+ void putAInt32(const int32_t* values, int count);
+ void putAUInt32(const uint32_t* values, int count);
+ void putAUInt32(const UInt32List* list);
+ void putAInt64(const int64_t* values, int count);
+ void putAUInt64(const uint64_t* values, int count);
+ void putString(const MtpStringBuffer& string);
+ void putString(const char* string);
+ void putString(const uint16_t* string);
+ inline void putEmptyString() { putUInt8(0); }
+ inline void putEmptyArray() { putUInt32(0); }
+
+#ifdef MTP_DEVICE
+ // fill our buffer with data from the given usb handle
+ int read(IMtpHandle *h);
+
+ // write our data to the given usb handle
+ int write(IMtpHandle *h);
+ int writeData(IMtpHandle *h, void* data, uint32_t length);
+#endif
+
+#ifdef MTP_HOST
+ int read(struct usb_request *request);
+ int readData(struct usb_request *request, void* buffer, int length);
+ int readDataAsync(struct usb_request *req);
+ int readDataWait(struct usb_device *device);
+ int readDataHeader(struct usb_request *ep);
+
+ // Write a whole data packet with payload to the end point given by a request. |divisionMode|
+ // specifies whether to divide header and payload. See |UrbPacketDivisionMode| for meanings of
+ // each value. Return the number of bytes (including header size) sent to the device on success.
+ // Otherwise -1.
+ int write(struct usb_request *request, UrbPacketDivisionMode divisionMode);
+ // Similar to previous write method but it reads the payload from |fd|. If |size| is larger than
+ // MTP_BUFFER_SIZE, the data will be sent by multiple bulk transfer requests.
+ int write(struct usb_request *request, UrbPacketDivisionMode divisionMode,
+ int fd, size_t size);
+#endif
+
+ inline bool hasData() const { return mPacketSize > MTP_CONTAINER_HEADER_SIZE; }
+ inline uint32_t getContainerLength() const { return MtpPacket::getUInt32(MTP_CONTAINER_LENGTH_OFFSET); }
+ void* getData(int* outLength) const;
+};
+
+#endif // _MTP_DATA_PACKET_H