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_CHANNEL_MAC_H_ 6 #define DEVICE_BLUETOOTH_BLUETOOTH_CHANNEL_MAC_H_ 7 8 #import <IOKit/IOReturn.h> 9 10 #include <string> 11 12 #include "base/macros.h" 13 14 @class IOBluetoothDevice; 15 16 namespace device { 17 18 class BluetoothSocketMac; 19 20 // Wraps a native RFCOMM or L2CAP channel. 21 class BluetoothChannelMac { 22 public: 23 BluetoothChannelMac(); 24 virtual ~BluetoothChannelMac(); 25 26 // Sets the channel's owning socket to |socket|. Should only be called if the 27 // socket was previously unset. Note: This can synchronously call back into 28 // socket->OnChannelOpenComplete(). 29 virtual void SetSocket(BluetoothSocketMac* socket); 30 31 // Returns the Bluetooth address for the device associated with |this| 32 // channel. 33 std::string GetDeviceAddress(); 34 35 // Returns the Bluetooth device associated with |this| channel. 36 virtual IOBluetoothDevice* GetDevice() = 0; 37 38 // Returns the outgoing MTU (maximum transmission unit) for the channel. 39 virtual uint16_t GetOutgoingMTU() = 0; 40 41 // Writes |data| of length |length| bytes into the channel. The |refcon| is a 42 // user-supplied value that gets passed to the write callback. 43 // Returns kIOReturnSuccess if the data was buffered successfully. 44 // If the return value is an error condition none of the data was sent. 45 // The number of bytes to be sent must not exceed the channel MTU. 46 // 47 // Once the data has been successfully passed to the hardware to be 48 // transmitted, the socket's method OnChannelWriteComplete() will be called 49 // with the |refcon| that was passed to this method. 50 virtual IOReturn WriteAsync(void* data, uint16_t length, void* refcon) = 0; 51 52 protected: 53 BluetoothSocketMac* socket() { return socket_; } 54 55 private: 56 // The socket that owns |this|. 57 BluetoothSocketMac* socket_; 58 59 DISALLOW_COPY_AND_ASSIGN(BluetoothChannelMac); 60 }; 61 62 } // namespace device 63 64 #endif // DEVICE_BLUETOOTH_BLUETOOTH_CHANNEL_MAC_H_ 65
