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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef DEVICE_USB_MOJO_DEVICE_IMPL_H_
#define DEVICE_USB_MOJO_DEVICE_IMPL_H_
#include <stdint.h>
#include "base/callback_forward.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/scoped_observer.h"
#include "device/usb/mojo/permission_provider.h"
#include "device/usb/public/interfaces/device.mojom.h"
#include "device/usb/usb_device.h"
#include "device/usb/usb_device_handle.h"
#include "mojo/public/cpp/bindings/binding.h"
#include "mojo/public/cpp/bindings/callback.h"
#include "mojo/public/cpp/bindings/interface_request.h"
namespace net {
class IOBuffer;
}
namespace device {
namespace usb {
class PermissionProvider;
// Implementation of the public Device interface. Instances of this class are
// constructed by DeviceManagerImpl and are strongly bound to their MessagePipe
// lifetime.
class DeviceImpl : public Device, public device::UsbDevice::Observer {
public:
DeviceImpl(scoped_refptr<UsbDevice> device,
DeviceInfoPtr device_info,
base::WeakPtr<PermissionProvider> permission_provider,
mojo::InterfaceRequest<Device> request);
~DeviceImpl() override;
private:
// Closes the device if it's open. This will always set |device_handle_| to
// null.
void CloseHandle();
// Checks interface permissions for control transfers.
bool HasControlTransferPermission(ControlTransferRecipient recipient,
uint16_t index);
// Handles completion of an open request.
void OnOpen(const OpenCallback& callback,
scoped_refptr<device::UsbDeviceHandle> handle);
// Device implementation:
void GetDeviceInfo(const GetDeviceInfoCallback& callback) override;
void GetConfiguration(const GetConfigurationCallback& callback) override;
void Open(const OpenCallback& callback) override;
void Close(const CloseCallback& callback) override;
void SetConfiguration(uint8_t value,
const SetConfigurationCallback& callback) override;
void ClaimInterface(uint8_t interface_number,
const ClaimInterfaceCallback& callback) override;
void ReleaseInterface(uint8_t interface_number,
const ReleaseInterfaceCallback& callback) override;
void SetInterfaceAlternateSetting(
uint8_t interface_number,
uint8_t alternate_setting,
const SetInterfaceAlternateSettingCallback& callback) override;
void Reset(const ResetCallback& callback) override;
void ClearHalt(uint8_t endpoint, const ClearHaltCallback& callback) override;
void ControlTransferIn(ControlTransferParamsPtr params,
uint32_t length,
uint32_t timeout,
const ControlTransferInCallback& callback) override;
void ControlTransferOut(ControlTransferParamsPtr params,
mojo::Array<uint8_t> data,
uint32_t timeout,
const ControlTransferOutCallback& callback) override;
void GenericTransferIn(uint8_t endpoint_number,
uint32_t length,
uint32_t timeout,
const GenericTransferInCallback& callback) override;
void GenericTransferOut(uint8_t endpoint_number,
mojo::Array<uint8_t> data,
uint32_t timeout,
const GenericTransferOutCallback& callback) override;
void IsochronousTransferIn(
uint8_t endpoint_number,
mojo::Array<uint32_t> packet_lengths,
uint32_t timeout,
const IsochronousTransferInCallback& callback) override;
void IsochronousTransferOut(
uint8_t endpoint_number,
mojo::Array<uint8_t> data,
mojo::Array<uint32_t> packet_lengths,
uint32_t timeout,
const IsochronousTransferOutCallback& callback) override;
// device::UsbDevice::Observer implementation:
void OnDeviceRemoved(scoped_refptr<device::UsbDevice> device) override;
const scoped_refptr<UsbDevice> device_;
const DeviceInfoPtr device_info_;
base::WeakPtr<PermissionProvider> permission_provider_;
ScopedObserver<device::UsbDevice, device::UsbDevice::Observer> observer_;
// The device handle. Will be null before the device is opened and after it
// has been closed.
scoped_refptr<UsbDeviceHandle> device_handle_;
mojo::Binding<Device> binding_;
base::WeakPtrFactory<DeviceImpl> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(DeviceImpl);
};
} // namespace usb
} // namespace device
#endif // DEVICE_USB_MOJO_DEVICE_IMPL_H_
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