1// Copyright 2014 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#ifndef DEVICE_BLUETOOTH_BLUETOOTH_L2CAP_CHANNEL_MAC_H_
6#define DEVICE_BLUETOOTH_BLUETOOTH_L2CAP_CHANNEL_MAC_H_
7
8#import <IOBluetooth/IOBluetooth.h>
9#import <IOKit/IOReturn.h>
10
11#include "base/mac/scoped_nsobject.h"
12#include "base/macros.h"
13#include "base/memory/scoped_ptr.h"
14#include "device/bluetooth/bluetooth_channel_mac.h"
15
16@class BluetoothL2capChannelDelegate;
17
18namespace device {
19
20class BluetoothL2capChannelMac : public BluetoothChannelMac {
21 public:
22  // Creates a new L2CAP channel wrapper with the given |socket| and native
23  // |channel|.
24  // NOTE: The |channel| is expected to already be retained.
25  BluetoothL2capChannelMac(BluetoothSocketMac* socket,
26                           IOBluetoothL2CAPChannel* channel);
27  virtual ~BluetoothL2capChannelMac();
28
29  // Opens a new L2CAP channel with Channel ID |channel_id| to the target
30  // |device|. Returns the opened channel and sets |status| to kIOReturnSuccess
31  // if the open process was successfully started (or if an existing L2CAP
32  // channel was found). Otherwise, sets |status| to an error status.
33  static scoped_ptr<BluetoothL2capChannelMac> OpenAsync(
34      BluetoothSocketMac* socket,
35      IOBluetoothDevice* device,
36      BluetoothL2CAPPSM psm,
37      IOReturn* status);
38
39  // BluetoothChannelMac:
40  virtual void SetSocket(BluetoothSocketMac* socket) OVERRIDE;
41  virtual IOBluetoothDevice* GetDevice() OVERRIDE;
42  virtual uint16_t GetOutgoingMTU() OVERRIDE;
43  virtual IOReturn WriteAsync(void* data,
44                              uint16_t length,
45                              void* refcon) OVERRIDE;
46
47  void OnChannelOpenComplete(IOBluetoothL2CAPChannel* channel,
48                             IOReturn status);
49  void OnChannelClosed(IOBluetoothL2CAPChannel* channel);
50  void OnChannelDataReceived(IOBluetoothL2CAPChannel* channel,
51                             void* data,
52                             size_t length);
53  void OnChannelWriteComplete(IOBluetoothL2CAPChannel* channel,
54                              void* refcon,
55                              IOReturn status);
56
57 private:
58  // The wrapped native L2CAP channel.
59  base::scoped_nsobject<IOBluetoothL2CAPChannel> channel_;
60
61  // The delegate for the native channel.
62  base::scoped_nsobject<BluetoothL2capChannelDelegate> delegate_;
63
64  DISALLOW_COPY_AND_ASSIGN(BluetoothL2capChannelMac);
65};
66
67}  // namespace device
68
69#endif  // DEVICE_BLUETOOTH_BLUETOOTH_L2CAP_CHANNEL_MAC_H_
70