Upstream version 9.38.198.0

[platform/framework/web/crosswalk.git] / src / device / hid / hid_connection.h

diff --git a/src/device/hid/hid_connection.h b/src/device/hid/hid_connection.h
index 27792c4..631db1b 100644 (file)
--- a/src/device/hid/hid_connection.h
+++ b/src/device/hid/hid_connection.h
@@ -1,54 +1,99 @@
-// Copyright (c) 2014 The Chromium Authors. All rights reserved.
+// Copyright 2014 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_HID_HID_CONNECTION_H_
 #define DEVICE_HID_HID_CONNECTION_H_
 
+#include <stdint.h>
+
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/threading/thread_checker.h"
 #include "device/hid/hid_device_info.h"
-
-namespace net {
-class IOBuffer;
-}
+#include "net/base/io_buffer.h"
 
 namespace device {
 
 class HidConnection : public base::RefCountedThreadSafe<HidConnection> {
  public:
+  enum SpecialReportIds {
+    kNullReportId = 0x00,
+    kAnyReportId = 0xFF,
+  };
+
   typedef base::Callback<void(bool success, size_t size)> IOCallback;
 
-  virtual void Read(scoped_refptr<net::IOBuffer> buffer,
-                    size_t size,
-                    const IOCallback& callback) = 0;
-  virtual void Write(scoped_refptr<net::IOBuffer> buffer,
-                     size_t size,
-                     const IOCallback& callback) = 0;
-  virtual void GetFeatureReport(scoped_refptr<net::IOBuffer> buffer,
-                                size_t size,
-                                const IOCallback& callback) = 0;
-  virtual void SendFeatureReport(scoped_refptr<net::IOBuffer> buffer,
-                                 size_t size,
-                                 const IOCallback& callback) = 0;
-
-  const HidDeviceInfo& device_info() const;
+  const HidDeviceInfo& device_info() const { return device_info_; }
+  bool has_protected_collection() const { return has_protected_collection_; }
+  const base::ThreadChecker& thread_checker() const { return thread_checker_; }
+
+  void Read(scoped_refptr<net::IOBufferWithSize> buffer,
+            const IOCallback& callback);
+  void Write(uint8_t report_id,
+             scoped_refptr<net::IOBufferWithSize> buffer,
+             const IOCallback& callback);
+  void GetFeatureReport(uint8_t report_id,
+                        scoped_refptr<net::IOBufferWithSize> buffer,
+                        const IOCallback& callback);
+  void SendFeatureReport(uint8_t report_id,
+                         scoped_refptr<net::IOBufferWithSize> buffer,
+                         const IOCallback& callback);
 
  protected:
   friend class base::RefCountedThreadSafe<HidConnection>;
-  friend struct HidDeviceInfo;
 
-  HidConnection(HidDeviceInfo device_info);
+  explicit HidConnection(const HidDeviceInfo& device_info);
   virtual ~HidConnection();
 
-  const HidDeviceInfo device_info_;
+  virtual void PlatformRead(scoped_refptr<net::IOBufferWithSize> buffer,
+                            const IOCallback& callback) = 0;
+  virtual void PlatformWrite(uint8_t report_id,
+                             scoped_refptr<net::IOBufferWithSize> buffer,
+                             const IOCallback& callback) = 0;
+  virtual void PlatformGetFeatureReport(
+      uint8_t report_id,
+      scoped_refptr<net::IOBufferWithSize> buffer,
+      const IOCallback& callback) = 0;
+  virtual void PlatformSendFeatureReport(
+      uint8_t report_id,
+      scoped_refptr<net::IOBufferWithSize> buffer,
+      const IOCallback& callback) = 0;
+
+  // PlatformRead implementation must call this method on read
+  // success, rather than directly running the callback.
+  // In case incoming buffer is empty or protected, it is filtered
+  // and this method returns false. Otherwise it runs the callback
+  // and returns true.
+  bool CompleteRead(scoped_refptr<net::IOBufferWithSize> buffer,
+                    int bytes_read,
+                    const IOCallback& callback);
+
+ private:
+  bool IsReportIdProtected(const uint8_t report_id);
 
+  const HidDeviceInfo device_info_;
+  bool has_protected_collection_;
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(HidConnection);
 };
 
+struct PendingHidReport {
+  PendingHidReport();
+  ~PendingHidReport();
+
+  scoped_refptr<net::IOBufferWithSize> buffer;
+};
+
+struct PendingHidRead {
+  PendingHidRead();
+  ~PendingHidRead();
+
+  scoped_refptr<net::IOBufferWithSize> buffer;
+  HidConnection::IOCallback callback;
+};
+
 }  // namespace device
 
 #endif  // DEVICE_HID_HID_CONNECTION_H_