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/*
This file is part of Android File Transfer For Linux.
Copyright (C) 2015-2020 Vladimir Menshakov
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef AFTL_MTP_BACKEND_LINUX_USB_DEVICE_H
#define AFTL_MTP_BACKEND_LINUX_USB_DEVICE_H
#include <mtp/types.h>
#include <mtp/ByteArray.h>
#include <usb/Interface.h>
#include <mtp/ptp/IObjectStream.h>
#include <mtp/Token.h>
#include <FileHandler.h>
#include <map>
#include <queue>
#include <functional>
namespace mtp { namespace usb
{
class Context;
DECLARE_PTR(Context);
class BufferAllocator;
DECLARE_PTR(BufferAllocator);
class InterfaceToken : public IToken
{
int _fd;
unsigned _interfaceNumber;
public:
InterfaceToken(int fd, unsigned interfaceNumber);
~InterfaceToken();
};
DECLARE_PTR(InterfaceToken);
class Device : Noncopyable
{
private:
posix::FileHandler _fd;
u32 _capabilities;
EndpointPtr _controlEp;
u8 _configuration;
BufferAllocatorPtr _bufferAllocator;
struct Urb;
//DECLARE_PTR(Urb);
std::queue<std::function<void ()>> _controls;
public:
Device(int fd, const EndpointPtr &controlEp, u8 configuration);
~Device();
InterfaceTokenPtr ClaimInterface(const InterfacePtr & interface)
{ return std::make_shared<InterfaceToken>(_fd.Get(), interface->GetIndex()); }
void Reset();
int GetConfiguration() const;
void SetConfiguration(int idx);
void ClearHalt(const EndpointPtr & ep);
void WriteBulk(const EndpointPtr & ep, const IObjectInputStreamPtr &inputStream, int timeout);
void ReadBulk(const EndpointPtr & ep, const IObjectOutputStreamPtr &outputStream, int timeout);
void WriteControl(u8 type, u8 req, u16 value, u16 index, const ByteArray &data, int timeout);
void ReadControl(u8 type, u8 req, u16 value, u16 index, ByteArray &data, int timeout); //result buffer must be allocated
private:
static u8 TransactionType(const EndpointPtr &ep);
void * Reap(int timeout);
void * AsyncReap();
void Submit(Urb *urb, int timeout);
};
DECLARE_PTR(Device);
}}
#endif /* DEVICE_H */
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