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BTHID.h
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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"
/* Bluetooth L2CAP states for L2CAP_task() */
#define L2CAP_WAIT 0
// These states are used if the device is the host
#define L2CAP_CONTROL_SUCCESS 1
#define L2CAP_INTERRUPT_SETUP 2
// These states are used if the Arduino is the host
#define L2CAP_CONTROL_CONNECT_REQUEST 3
#define L2CAP_CONTROL_CONFIG_REQUEST 4
#define L2CAP_INTERRUPT_CONNECT_REQUEST 5
#define L2CAP_INTERRUPT_CONFIG_REQUEST 6
#define L2CAP_DONE 7
#define L2CAP_INTERRUPT_DISCONNECT 8
#define L2CAP_CONTROL_DISCONNECT 9
/* L2CAP event flags */
#define L2CAP_FLAG_CONTROL_CONNECTED 0x01
#define L2CAP_FLAG_INTERRUPT_CONNECTED 0x02
#define L2CAP_FLAG_CONFIG_CONTROL_SUCCESS 0x04
#define L2CAP_FLAG_CONFIG_INTERRUPT_SUCCESS 0x08
#define L2CAP_FLAG_DISCONNECT_CONTROL_RESPONSE 0x10
#define L2CAP_FLAG_DISCONNECT_INTERRUPT_RESPONSE 0x20
#define L2CAP_FLAG_CONNECTION_CONTROL_REQUEST 0x40
#define L2CAP_FLAG_CONNECTION_INTERRUPT_REQUEST 0x80
/* Macros for L2CAP event flag tests */
#define l2cap_connected_control_flag (l2cap_event_flag & L2CAP_FLAG_CONTROL_CONNECTED)
#define l2cap_connected_interrupt_flag (l2cap_event_flag & L2CAP_FLAG_INTERRUPT_CONNECTED)
#define l2cap_config_success_control_flag (l2cap_event_flag & L2CAP_FLAG_CONFIG_CONTROL_SUCCESS)
#define l2cap_config_success_interrupt_flag (l2cap_event_flag & L2CAP_FLAG_CONFIG_INTERRUPT_SUCCESS)
#define l2cap_disconnect_response_control_flag (l2cap_event_flag & L2CAP_FLAG_DISCONNECT_CONTROL_RESPONSE)
#define l2cap_disconnect_response_interrupt_flag (l2cap_event_flag & L2CAP_FLAG_DISCONNECT_INTERRUPT_RESPONSE)
#define l2cap_connection_request_control_flag (l2cap_event_flag & L2CAP_FLAG_CONNECTION_CONTROL_REQUEST)
#define l2cap_connection_request_interrupt_flag (l2cap_event_flag & L2CAP_FLAG_CONNECTION_INTERRUPT_REQUEST)
#define KEYBOARD_PARSER_ID 0
#define MOUSE_PARSER_ID 1
#define epMUL 2
/** This BluetoothService class implements support for the HID keyboard and mice. */
class BTHID : public BluetoothService {
public:
/**
* Constructor for the BTHID class.
* @param p Pointer to the BTD class instance.
* @param pair Set this to true in order to pair with the device. If the argument is omitted then it will not pair with it. One can use ::PAIR to set it to true.
* @param pin Write the pin to BTD#btdPin. If argument is omitted, then "0000" will be used.
*/
BTHID(BTD *p, bool pair = false, const char *pin = "0000");
/** @name BluetoothService implementation */
/**
* Used to pass acldata to the services.
* @param ACLData Incoming acldata.
*/
virtual void ACLData(uint8_t* ACLData);
/** Used to run part of the state maschine. */
virtual void Run();
/** Use this to reset the service. */
virtual void Reset();
/** Used this to disconnect any of the controllers. */
virtual void disconnect();
/**@}*/
HIDReportParser *GetReportParser(uint8_t id) {
return pRptParser[id];
};
bool SetReportParser(uint8_t id, HIDReportParser *prs) {
pRptParser[id] = prs;
return true;
};
void setProtocolMode(uint8_t mode) {
protocolMode = mode;
};
/** Used to set the leds on a keyboard */
void setLeds(uint8_t data);
/** True if a device is connected */
bool connected;
/** Call this to start the paring sequence with a controller */
void pair(void) {
if (pBtd)
pBtd->pairWithHID();
};
/**
* Used to call your own function when the controller is successfully initialized.
* @param funcOnInit Function to call.
*/
void attachOnInit(void (*funcOnInit)(void)) {
pFuncOnInit = funcOnInit;
};
private:
BTD *pBtd; // Pointer to BTD instance
HIDReportParser *pRptParser[epMUL];
/** Set report protocol. */
void setProtocol();
uint8_t protocolMode;
/**
* Called when the controller is successfully initialized.
* Use attachOnInit(void (*funcOnInit)(void)) to call your own function.
* This is useful for instance if you want to set the LEDs in a specific way.
*/
void onInit() {
if (pFuncOnInit)
pFuncOnInit(); // Call the user function
}
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's already has established a connection
/* Variables used by high level L2CAP task */
uint8_t l2cap_state;
uint8_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