BTHID.h

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/* 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");
 
        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(struct KBDLEDS data) {
                setLeds(*((uint8_t*)&data));
        };
        void setLeds(uint8_t data);
        bool connected;
 
        void pair(void) {
                if(pBtd)
                        pBtd->pairWithHID();
        };
 
        uint32_t getLastMessageTime() {
                return lastBtDataInputIntMillis;
        };
 
protected:
        void ACLData(uint8_t* ACLData);
        void Run();
        void Reset();
        void onInit() {
                if(pFuncOnInit)
                        pFuncOnInit(); // Call the user function
                OnInitBTHID();
        };
        virtual void ParseBTHIDData(uint8_t len __attribute__((unused)), uint8_t *buf __attribute__((unused))) {
                return;
        };
        virtual void ParseBTHIDControlData(uint8_t len __attribute__((unused)), uint8_t *buf __attribute__((unused))) {
                return;
        }
        virtual void OnInitBTHID() {
                return;
        };
        virtual void ResetBTHID() {
                return;
        }
        uint8_t control_scid[2];
 
        uint8_t interrupt_scid[2];
 
        uint8_t l2cap_sdp_state;
        uint8_t sdp_scid[2]; // L2CAP source CID for SDP
 
private:
        HIDReportParser *pRptParser[NUM_PARSERS]; // Pointer to HIDReportParsers.
 
        uint8_t l2capoutbuf[BULK_MAXPKTSIZE]; // General purpose buffer for l2cap out data
        void SDP_Command(uint8_t* data, uint8_t nbytes);
        void serviceNotSupported(uint8_t transactionIDHigh, uint8_t transactionIDLow);
 
        void setProtocol();
        uint8_t protocolMode;
 
        void SDP_task();
        void L2CAP_task(); // L2CAP state machine
 
        bool activeConnection; // Used to indicate if it already has established a connection
        bool SDPConnected;
 
        /* Variables used for L2CAP communication */
        uint8_t control_dcid[2]; // L2CAP device CID for HID_Control - Always 0x0070
        uint8_t interrupt_dcid[2]; // L2CAP device CID for HID_Interrupt - Always 0x0071
        uint8_t sdp_dcid[2];
        uint8_t l2cap_state;
 
        uint32_t lastBtDataInputIntMillis; // Variable used to store the millis value of the last Bluetooth DATA input report received on the interrupt channel
};
#endif