BTHID.h

Go to the documentation of this file.

/* Copyright (C) 2013 Kristian Lauszus, TKJ Electronics. All rights reserved.

 This software may be distributed and modified under the terms of the GNU
 General Public License version 2 (GPL2) as published by the Free Software
 Foundation and appearing in the file GPL2.TXT included in the packaging of
 this file. Please note that GPL2 Section 2[b] requires that all works based
 on this software must also be made publicly available under the terms of
 the GPL2 ("Copyleft").

 Contact information
 -------------------

 Kristian Lauszus, TKJ Electronics
 Web      :  http://www.tkjelectronics.com
 e-mail   :  kristianl@tkjelectronics.com
 */

#ifndef _bthid_h_
#define _bthid_h_

#include "BTD.h"
#include "hidboot.h"

#define KEYBOARD_PARSER_ID      0
#define MOUSE_PARSER_ID         1
#define NUM_PARSERS             2

class BTHID : public BluetoothService {
public:
        BTHID(BTD *p, bool pair = false, const char *pin = "0000");

        virtual void ACLData(uint8_t* ACLData);
        virtual void Run();
        virtual void Reset();
        virtual void disconnect();
        HIDReportParser *GetReportParser(uint8_t id) {
                if (id >= NUM_PARSERS)
                        return NULL;
                return pRptParser[id];
        };

        bool SetReportParser(uint8_t id, HIDReportParser *prs) {
                if (id >= NUM_PARSERS)
                        return false;
                pRptParser[id] = prs;
                return true;
        };

        void setProtocolMode(uint8_t mode) {
                protocolMode = mode;
        };

        void setLeds(uint8_t data);

        bool connected;

        void pair(void) {
                if(pBtd)
                        pBtd->pairWithHID();
        };

        void attachOnInit(void (*funcOnInit)(void)) {
                pFuncOnInit = funcOnInit;
        };

protected:
        virtual void ParseBTHID(BTHID *bthid, uint8_t len, uint8_t *buf) {
                return;
        };
        virtual void OnInitBTHID() {
                return;
        };
        virtual void ResetBTHID() {
                return;
        }
private:
        BTD *pBtd; // Pointer to BTD instance
        HIDReportParser *pRptParser[NUM_PARSERS]; // Pointer to HIDReportParsers.

        void setProtocol();
        uint8_t protocolMode;

        void onInit() {
                if(pFuncOnInit)
                        pFuncOnInit(); // Call the user function
                OnInitBTHID();
        };
        void (*pFuncOnInit)(void); // Pointer to function called in onInit()

        void L2CAP_task(); // L2CAP state machine

        /* Variables filled from HCI event management */
        uint16_t hci_handle;
        bool activeConnection; // Used to indicate if it already has established a connection

        /* Variables used by high level L2CAP task */
        uint8_t l2cap_state;
        uint32_t l2cap_event_flag; // l2cap flags of received Bluetooth events

        /* L2CAP Channels */
        uint8_t control_scid[2]; // L2CAP source CID for HID_Control
        uint8_t control_dcid[2]; // 0x0070
        uint8_t interrupt_scid[2]; // L2CAP source CID for HID_Interrupt
        uint8_t interrupt_dcid[2]; // 0x0071
        uint8_t identifier; // Identifier for connection
};
#endif