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// Copyright 2017 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_USB_DEVICE_WIN_H_
#define DEVICE_USB_USB_DEVICE_WIN_H_
#include <string>
#include "base/macros.h"
#include "base/threading/thread_checker.h"
#include "device/usb/usb_device.h"
namespace base {
class SequencedTaskRunner;
}
namespace device {
struct UsbDeviceDescriptor;
class UsbDeviceWin : public UsbDevice {
public:
// UsbDevice implementation:
void Open(const OpenCallback& callback) override;
protected:
friend class UsbServiceWin;
friend class UsbDeviceHandleWin;
// Called by UsbServiceWin only;
UsbDeviceWin(const std::string& device_path,
const std::string& hub_path,
int port_number,
const std::string& driver_name,
scoped_refptr<base::SequencedTaskRunner> task_runner);
~UsbDeviceWin() override;
const std::string& device_path() const { return device_path_; }
int port_number() const { return port_number_; }
const std::string& driver_name() const { return driver_name_; }
// Opens the device's parent hub in order to read the device, configuration
// and string descriptors.
void ReadDescriptors(const base::Callback<void(bool)>& callback);
private:
void OpenOnBlockingThread(const OpenCallback& callback);
void OnReadDescriptors(const base::Callback<void(bool)>& callback,
scoped_refptr<UsbDeviceHandle> device_handle,
std::unique_ptr<UsbDeviceDescriptor> descriptor);
void OnReadStringDescriptors(
const base::Callback<void(bool)>& callback,
scoped_refptr<UsbDeviceHandle> device_handle,
std::unique_ptr<std::map<uint8_t, base::string16>> string_map);
private:
base::ThreadChecker thread_checker_;
const std::string device_path_;
const std::string hub_path_;
const int port_number_;
const std::string driver_name_;
scoped_refptr<base::SequencedTaskRunner> task_runner_;
scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
DISALLOW_COPY_AND_ASSIGN(UsbDeviceWin);
};
} // namespace device
#endif // DEVICE_USB_USB_DEVICE_WIN_H_
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