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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 | |
| 6 #ifndef CHROME_BROWSER_USB_USB_DEVICE_H_ | |
| 7 #define CHROME_BROWSER_USB_USB_DEVICE_H_ | |
| 8 | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "base/basictypes.h" | |
| 12 #include "base/callback.h" | |
| 13 #include "base/memory/ref_counted.h" | |
| 14 #include "base/threading/thread_checker.h" | |
| 15 #include "chrome/browser/usb/usb_interface.h" | |
| 16 | |
| 17 struct libusb_device; | |
| 18 class UsbDeviceHandle; | |
| 19 class UsbContext; | |
| 20 | |
| 21 typedef libusb_device* PlatformUsbDevice; | |
| 22 | |
| 23 // A UsbDevice object represents a detected USB device, providing basic | |
| 24 // information about it. For further manipulation of the device, a | |
| 25 // UsbDeviceHandle must be created from Open() method. | |
| 26 class UsbDevice : public base::RefCountedThreadSafe<UsbDevice> { | |
| 27 public: | |
| 28 // Accessors to basic information. | |
| 29 PlatformUsbDevice platform_device() const { return platform_device_; } | |
| 30 uint16 vendor_id() const { return vendor_id_; } | |
| 31 uint16 product_id() const { return product_id_; } | |
| 32 uint32 unique_id() const { return unique_id_; } | |
| 33 | |
| 34 #if defined(OS_CHROMEOS) | |
| 35 // On ChromeOS, if an interface of a claimed device is not claimed, the | |
| 36 // permission broker can change the owner of the device so that the unclaimed | |
| 37 // interfaces can be used. If this argument is missing, permission broker will | |
| 38 // not be used and this method fails if the device is claimed. | |
| 39 virtual void RequestUsbAcess( | |
| 40 int interface_id, const base::Callback<void(bool success)>& callback); | |
| 41 #endif // OS_CHROMEOS | |
| 42 | |
| 43 // Creates a UsbDeviceHandle for further manipulation. | |
| 44 // Blocking method. Must be called on FILE thread. | |
| 45 virtual scoped_refptr<UsbDeviceHandle> Open(); | |
| 46 | |
| 47 // Explicitly closes a device handle. This method will be automatically called | |
| 48 // by the destructor of a UsbDeviceHandle as well. | |
| 49 // Closing a closed handle is a safe | |
| 50 // Blocking method. Must be called on FILE thread. | |
| 51 virtual bool Close(scoped_refptr<UsbDeviceHandle> handle); | |
| 52 | |
| 53 // Lists the interfaces provided by the device and fills the given | |
| 54 // UsbConfigDescriptor. | |
| 55 // Blocking method. Must be called on FILE thread. | |
| 56 virtual scoped_refptr<UsbConfigDescriptor> ListInterfaces(); | |
| 57 | |
| 58 protected: | |
| 59 friend class UsbService; | |
| 60 friend class base::RefCountedThreadSafe<UsbDevice>; | |
| 61 | |
| 62 // Called by UsbService only; | |
| 63 UsbDevice(scoped_refptr<UsbContext> context, | |
| 64 PlatformUsbDevice platform_device, | |
| 65 uint16 vendor_id, | |
| 66 uint16 product_id, | |
| 67 uint32 unique_id); | |
| 68 | |
| 69 // Constructor called in test only. | |
| 70 UsbDevice(); | |
| 71 virtual ~UsbDevice(); | |
| 72 | |
| 73 // Called only be UsbService. | |
| 74 virtual void OnDisconnect(); | |
| 75 | |
| 76 private: | |
| 77 PlatformUsbDevice platform_device_; | |
| 78 uint16 vendor_id_; | |
| 79 uint16 product_id_; | |
| 80 uint32 unique_id_; | |
| 81 | |
| 82 // Retain the context so that it will not be released before UsbDevice. | |
| 83 scoped_refptr<UsbContext> context_; | |
| 84 | |
| 85 // Opened handles. | |
| 86 typedef std::vector<scoped_refptr<UsbDeviceHandle> > HandlesVector; | |
| 87 HandlesVector handles_; | |
| 88 | |
| 89 base::ThreadChecker thread_checker_; | |
| 90 | |
| 91 DISALLOW_COPY_AND_ASSIGN(UsbDevice); | |
| 92 }; | |
| 93 | |
| 94 #endif // CHROME_BROWSER_USB_USB_DEVICE_H_ | |
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Chromium Code Reviews
Issue 236203019:
Move UsbService to its own component. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src