device/bluetooth/bluetooth_l2cap_channel_mac.h

   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
  18 namespace device {
  19
  20 class 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   ~BluetoothL2capChannelMac() override;
  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   void SetSocket(BluetoothSocketMac* socket) override;
  41   IOBluetoothDevice* GetDevice() override;
  42   uint16_t GetOutgoingMTU() override;
  43   IOReturn WriteAsync(void* data, uint16_t length, void* refcon) override;
  44
  45   void OnChannelOpenComplete(IOBluetoothL2CAPChannel* channel,
  46                              IOReturn status);
  47   void OnChannelClosed(IOBluetoothL2CAPChannel* channel);
  48   void OnChannelDataReceived(IOBluetoothL2CAPChannel* channel,
  49                              void* data,
  50                              size_t length);
  51   void OnChannelWriteComplete(IOBluetoothL2CAPChannel* channel,
  52                               void* refcon,
  53                               IOReturn status);
  54
  55  private:
  56   // The wrapped native L2CAP channel.
  57   base::scoped_nsobject<IOBluetoothL2CAPChannel> channel_;
  58
  59   // The delegate for the native channel.
  60   base::scoped_nsobject<BluetoothL2capChannelDelegate> delegate_;
  61
  62   DISALLOW_COPY_AND_ASSIGN(BluetoothL2capChannelMac);
  63 };
  64
  65 }  // namespace device
  66
  67 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_L2CAP_CHANNEL_MAC_H_