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Dependencies:   mbed

hci.h@0:a6476c138e84, 2011-07-10 (annotated)

Committer:
halfpitch
Date:
Sun Jul 10 01:31:52 2011 +0000
Revision:
0:a6476c138e84

        

        
Who changed what in which revision?

        

            
                
UserRevisionLine numberNew contents of line

            
            


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/*





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Copyright (c) 2010 Peter Barrett





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Permission is hereby granted, free of charge, to any person obtaining a copy





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of this software and associated documentation files (the "Software"), to deal





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in the Software without restriction, including without limitation the rights





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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell





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copies of the Software, and to permit persons to whom the Software is





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furnished to do so, subject to the following conditions:





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The above copyright notice and this permission notice shall be included in





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all copies or substantial portions of the Software.





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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR





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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,





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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE





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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER





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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,





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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN





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THE SOFTWARE.





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*/





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#ifndef HCI_H_INCLUDED





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#define HCI_H_INCLUDED





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#include "Socket.h"





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#pragma pack(1)





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#define ERR_HCI_DEVICE_NOT_FOUND -300





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//bool SetLocalName_complite = false;





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class HCI;





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class HCITransport;





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class BTDevice;





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typedef struct





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{





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    u8  addr[6];





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} BD_ADDR;





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typedef struct





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{





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    BD_ADDR bdaddr;





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    u8  pscan_rep_mode;





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    u8  pscan_period_mode;





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    u8  pscan_mode;





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    u8  dev_class[3];





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    u16 clock_offset;





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} inquiry_info;





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typedef struct





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{





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    u8  status;





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    u16 handle;





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    BD_ADDR bdaddr;





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    u8  link_type;





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    u8  encr_mode;





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} connection_info;





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//  Address struct for creating L2CAP sockets





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typedef struct {





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    SocketAddrHdr hdr;





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    BD_ADDR bdaddr;





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    u16 psm;





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} L2CAPAddr;





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#pragma pack(4)





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class BTDevice;





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typedef struct





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{





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    public:





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    SocketInternal si;





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    BTDevice* btdevice;





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    u16 scid;





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    u16 dcid;





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} L2CAPSocket;





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#define MAX_HCL_NAME_LENGTH 20  // TODO - BTDevice wants to be a multiple of 4





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//  BTDevice encapsulates individual device state





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//  It provides L2CAP layer sockets





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class BTDevice : public SocketHandler





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{





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    public:





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    HCITransport* _transport;





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    inquiry_info  _info;





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    u16 _handle;     // acl connection handle





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    u8  _state;      // connection state





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    u8  _txid;





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    char   _name[MAX_HCL_NAME_LENGTH];





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    void Init();





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    BD_ADDR* GetAddress() { return &_info.bdaddr; }





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    //  Called from HCI





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    void ACLRecv(const u8* data, int len);





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    // SocketHandler





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    virtual int Open(SocketInternal* sock, SocketAddrHdr* addr);





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    virtual int Send(SocketInternal* sock, const u8* data, int len);





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    virtual int Close(SocketInternal* sock);





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private:





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    L2CAPSocket* SCIDToSocket(int scid);





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    int Send(const u8* data, int len);





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    int Send(u8 c, u8 id, u16* params, int count);





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    int Connect(int scid, int psm);





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    int Disconnect(int scid, int dcid);





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    int ConfigureRequest(int dcid);





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    int ConfigureResponse(u8 rxid, int dcid);





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    int DisconnectResponse(u8 rxid, int scid, int dcid);





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    void Control(const u8* data, int len);





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};





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enum HCI_CALLBACK_EVENT





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{





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    CALLBACK_NONE,





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    CALLBACK_READY,





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    CALLBACK_INQUIRY_RESULT,





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    CALLBACK_INQUIRY_DONE,





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    CALLBACK_REMOTE_NAME,





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    CALLBACK_CONNECTION_COMPLETE,





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    CALLBACK_CONNECTION_FAILED,





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    CALLBACK_SET_LOCAL_NAME





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};





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//  L2CAP Protocol/Service Multiplexor (PSM) values





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#define L2CAP_PSM_ANY                   0x0000  /* Any/Invalid PSM */





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#define L2CAP_PSM_SDP                   0x0001  /* Service Discovery Protocol */





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#define L2CAP_PSM_RFCOMM                0x0003  /* RFCOMM protocol */





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#define L2CAP_PSM_TCP                   0x0005  /* Telephony Control Protocol */





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#define L2CAP_PSM_TCS                   0x0007  /* TCS cordless */





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#define L2CAP_PSM_BNEP                  0x000f  /* Bluetooth Network Encapsulation Protocol*/





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#define L2CAP_PSM_HID_CNTL              0x0011  /* HID Control */





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#define L2CAP_PSM_HID_INTR              0x0013  /* HID Interrupt */





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#define L2CAP_PSM_ESDP                  0x0015  /* Extended Service Discovery Profile */





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#define L2CAP_PSM_AVCTP                 0x0017  /* Audio/Visual Control Transport Protocol */





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#define L2CAP_PSM_AVDTP                 0x0019  /* Audio/Visual Distribution */





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//  Callback from inquiry





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typedef int (*HCICallback)(HCI* hci, HCI_CALLBACK_EVENT evt, const u8* data, int len);





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#define MAX_BTDEVICES 8





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class HCITransport;





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class HCI : public SocketHandler





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{





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    HCITransport* _transport;





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    HCICallback _callback;





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    BD_ADDR  _localAddr;





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    BTDevice _devices[MAX_BTDEVICES];





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    int _deviceCount;





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    int _acl_mtu;





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    int _acl_max_pkt;





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    int _sco_mtu;





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    int _sco_max_pkt;





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    int _state;





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    public:





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    //  Open a local adapter





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    int Open(HCITransport* transport, HCICallback callback);





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    //  Return list of discovered addreses





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    int GetDevices(BTDevice** devices, int maxDevices);





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    //  Lookup a device by address or handle





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    BTDevice* Find(const BD_ADDR* addr);





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    BTDevice* Find(int handle);





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    //  Disconnect from a remote device





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    int Disconnect(const BD_ADDR* addr);





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    int DisconnectAll();





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//-----y.k-----





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    void Setlocalname(void);





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    void Setdevice(void);





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    void Scanenable(void);





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//-----y.k-----





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    //  see what devies are in the system





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    int Inquiry(int duration = 10);





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    //  get a name, delivered in callback





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    int RemoteNameRequest(const BD_ADDR* addr);





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    //  Connect to a remote device





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    int CreateConnection(const BD_ADDR* remoteAddr);





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    bool Busy();





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    //  called from transport





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    void HCIRecv(const u8* data, int len);





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    //  called from transport





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    void ACLRecv(const u8* data, int len);





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    //  SocketHandler methods for maintaining L2CAP sockets





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    virtual int Open(SocketInternal* sock, SocketAddrHdr* addr);





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    virtual int Send(SocketInternal* sock, const u8* data, int len);





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    virtual int Close(SocketInternal* sock);





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    bool SetLocalName_complite;





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    private:





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    void    InquiryResult(const inquiry_info* info);





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    void    RemoteName(const BD_ADDR* addr, const char* name);





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    void    ConnectComplete(const connection_info* info);





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    void    DisconnectComplete(int handle);





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    int     SendCmd(int cmd, const u8* params = 0, int len = 0);





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    void    OnCommandComplete(int cmd, const u8* data, int len);





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    void    Callback(HCI_CALLBACK_EVENT c, const u8* data, int len);





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    int     PinCodeReply(const u8* data);





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};





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class HCITransport





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{





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protected:





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    HCI* _target;





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public:





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    void Set(HCI* target) { _target = target; };





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    virtual void HCISend(const u8* data, int len) = 0;





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    virtual void ACLSend(const u8* data, int len) = 0;





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};





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#endif