mirror of
https://github.com/felis/USB_Host_Shield_2.0.git
synced 2024-03-22 11:31:26 +01:00
192 lines
No EOL
8 KiB
C++
192 lines
No EOL
8 KiB
C++
/* Copyright (C) 2012 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 _spp_h_
|
|
#define _spp_h_
|
|
|
|
#include "BTD.h"
|
|
|
|
/* Bluetooth L2CAP states for SDP_task() */
|
|
#define L2CAP_SDP_WAIT 0
|
|
#define L2CAP_SDP_REQUEST 1
|
|
#define L2CAP_SDP_SUCCESS 2
|
|
#define L2CAP_SDP_DONE 3
|
|
#define L2CAP_DISCONNECT_RESPONSE 4
|
|
|
|
/* Bluetooth L2CAP states for RFCOMM_task() */
|
|
#define L2CAP_RFCOMM_WAIT 0
|
|
#define L2CAP_RFCOMM_REQUEST 1
|
|
#define L2CAP_RFCOMM_SUCCESS 2
|
|
#define L2CAP_RFCOMM_DONE 3
|
|
|
|
/* L2CAP event flags */
|
|
#define L2CAP_FLAG_CONNECTION_SDP_REQUEST 0x001
|
|
#define L2CAP_FLAG_CONNECTION_RFCOMM_REQUEST 0x002
|
|
#define L2CAP_FLAG_CONFIG_SDP_REQUEST 0x004
|
|
#define L2CAP_FLAG_CONFIG_RFCOMM_REQUEST 0x008
|
|
#define L2CAP_FLAG_CONFIG_SDP_SUCCESS 0x010
|
|
#define L2CAP_FLAG_CONFIG_RFCOMM_SUCCESS 0x020
|
|
#define L2CAP_FLAG_DISCONNECT_SDP_REQUEST 0x040
|
|
#define L2CAP_FLAG_DISCONNECT_RFCOMM_REQUEST 0x080
|
|
#define L2CAP_FLAG_DISCONNECT_RESPONSE 0x100
|
|
|
|
/* Macros for L2CAP event flag tests */
|
|
#define l2cap_connection_request_sdp_flag (l2cap_event_flag & L2CAP_FLAG_CONNECTION_SDP_REQUEST)
|
|
#define l2cap_connection_request_rfcomm_flag (l2cap_event_flag & L2CAP_FLAG_CONNECTION_RFCOMM_REQUEST)
|
|
#define l2cap_config_request_sdp_flag (l2cap_event_flag & L2CAP_FLAG_CONFIG_SDP_REQUEST)
|
|
#define l2cap_config_request_rfcomm_flag (l2cap_event_flag & L2CAP_FLAG_CONFIG_RFCOMM_REQUEST)
|
|
#define l2cap_config_success_sdp_flag (l2cap_event_flag & L2CAP_FLAG_CONFIG_SDP_SUCCESS)
|
|
#define l2cap_config_success_rfcomm_flag (l2cap_event_flag & L2CAP_FLAG_CONFIG_RFCOMM_SUCCESS)
|
|
#define l2cap_disconnect_request_sdp_flag (l2cap_event_flag & L2CAP_FLAG_DISCONNECT_SDP_REQUEST)
|
|
#define l2cap_disconnect_request_rfcomm_flag (l2cap_event_flag & L2CAP_FLAG_DISCONNECT_RFCOMM_REQUEST)
|
|
#define l2cap_disconnect_response_flag (l2cap_event_flag & L2CAP_FLAG_DISCONNECT_RESPONSE)
|
|
|
|
/* Bluetooth L2CAP PSM */
|
|
#define SDP_PSM 0x01 // Service Discovery Protocol PSM Value
|
|
#define RFCOMM_PSM 0x03 // RFCOMM PSM Value
|
|
|
|
/* Used for SDP */
|
|
#define SDP_SERVICE_SEARCH_ATTRIBUTE_REQUEST_PDU 0x06 // See the RFCOMM specs
|
|
#define SDP_SERVICE_SEARCH_ATTRIBUTE_RESPONSE_PDU 0x07 // See the RFCOMM specs
|
|
#define SERIALPORT_UUID 0x1101 // See http://www.bluetooth.org/Technical/AssignedNumbers/service_discovery.htm
|
|
#define L2CAP_UUID 0x0100
|
|
|
|
/* Used for RFCOMM */
|
|
#define RFCOMM_SABM 0x2F
|
|
#define RFCOMM_UA 0x63
|
|
#define RFCOMM_UIH 0xEF
|
|
//#define RFCOMM_DM 0x0F
|
|
#define RFCOMM_DISC 0x43
|
|
|
|
#define extendAddress 0x01 // Allways 1
|
|
|
|
// Multiplexer message types
|
|
#define BT_RFCOMM_PN_CMD 0x83
|
|
#define BT_RFCOMM_PN_RSP 0x81
|
|
#define BT_RFCOMM_MSC_CMD 0xE3
|
|
#define BT_RFCOMM_MSC_RSP 0xE1
|
|
#define BT_RFCOMM_RPN_CMD 0x93
|
|
#define BT_RFCOMM_RPN_RSP 0x91
|
|
/*
|
|
#define BT_RFCOMM_TEST_CMD 0x23
|
|
#define BT_RFCOMM_TEST_RSP 0x21
|
|
#define BT_RFCOMM_FCON_CMD 0xA3
|
|
#define BT_RFCOMM_FCON_RSP 0xA1
|
|
#define BT_RFCOMM_FCOFF_CMD 0x63
|
|
#define BT_RFCOMM_FCOFF_RSP 0x61
|
|
#define BT_RFCOMM_RLS_CMD 0x53
|
|
#define BT_RFCOMM_RLS_RSP 0x51
|
|
#define BT_RFCOMM_NSC_RSP 0x11
|
|
*/
|
|
|
|
class SPP : public BluetoothService {
|
|
public:
|
|
SPP(BTD *p, const char* name = "Arduino", const char* pin = "1234");
|
|
|
|
// BluetoothService implementation
|
|
virtual void ACLData(uint8_t* ACLData); // Used to pass acldata to the services
|
|
virtual void Run(); // Used to establish the connection automatically
|
|
virtual void Reset(); // Use this to reset the service
|
|
virtual void disconnect(); // Used this void to disconnect the virtual serial port
|
|
|
|
bool connected;// Variable used to indicate if the connection is established
|
|
|
|
/* Serial port profile (SPP) commands */
|
|
void print(const String &); // Used to send strings
|
|
void print(const char* data); // Used to send strings
|
|
void print(uint8_t data); // Used to send single bytes
|
|
void print(uint8_t* array, uint8_t length); // Used to send arrays
|
|
void print(const __FlashStringHelper *); // Used to print strings stored in flash
|
|
|
|
void println(const String &); // Used to send strings
|
|
void println(const char* data); // Include newline and carriage return
|
|
void println(uint8_t data); // Include newline and carriage return
|
|
void println(uint8_t* array, uint8_t length); // Include newline and carriage return
|
|
void println(const __FlashStringHelper *); // Include newline and carriage return
|
|
void println(void); // Use this to print newline and carriage return
|
|
|
|
void printNumber(uint16_t n); // These must be used to print numbers
|
|
void printNumberln(uint16_t n); // This will include newline and carriage return
|
|
|
|
uint8_t available() { return rfcommAvailable; }; // Get the bytes waiting to be read
|
|
uint8_t read(); // Used to read the buffer
|
|
|
|
private:
|
|
/* Bluetooth dongle library pointer */
|
|
BTD *pBtd;
|
|
|
|
/* Set true when a channel is created */
|
|
bool SDPConnected;
|
|
bool RFCOMMConnected;
|
|
|
|
uint16_t hci_handle; // The HCI Handle for the connection
|
|
|
|
/* Variables used by L2CAP state maschines */
|
|
uint8_t l2cap_sdp_state;
|
|
uint8_t l2cap_rfcomm_state;
|
|
uint16_t l2cap_event_flag; // l2cap flags of received bluetooth events
|
|
|
|
uint8_t l2capoutbuf[BULK_MAXPKTSIZE]; // General purpose buffer for l2cap out data
|
|
uint8_t rfcommbuf[10]; // Buffer for RFCOMM Commands
|
|
|
|
/* L2CAP Channels */
|
|
uint8_t sdp_scid[2]; // L2CAP source CID for SDP
|
|
uint8_t sdp_dcid[2]; // 0x0050
|
|
uint8_t rfcomm_scid[2]; // L2CAP source CID for RFCOMM
|
|
uint8_t rfcomm_dcid[2]; // 0x0051
|
|
uint8_t identifier; // Identifier for command
|
|
|
|
/* RFCOMM Variables */
|
|
uint8_t rfcommChannel;
|
|
uint8_t rfcommChannelConnection; // This is the channel the SPP chanel will be running at
|
|
uint8_t rfcommDirection;
|
|
uint8_t rfcommCommandResponse;
|
|
uint8_t rfcommChannelType;
|
|
uint8_t rfcommPfBit;
|
|
|
|
unsigned long timer;
|
|
bool waitForLastCommand;
|
|
bool creditSent;
|
|
|
|
uint8_t rfcommDataBuffer[256]; // Create a 256 sized buffer for incoming data
|
|
uint8_t rfcommAvailable;
|
|
|
|
bool firstMessage; // Used to see if it's the first SDP request received
|
|
uint8_t bytesRead; // Counter to see when it's time to send more credit
|
|
|
|
unsigned long printTimer; // Used to set a delay, so it doesn't try to print too fast
|
|
|
|
/* State machines */
|
|
void SDP_task(); // SDP state machine
|
|
void RFCOMM_task(); // RFCOMM state machine
|
|
|
|
/* SDP Commands */
|
|
void SDP_Command(uint8_t* data, uint8_t nbytes);
|
|
void serviceNotSupported(uint8_t transactionIDHigh, uint8_t transactionIDLow);
|
|
void serialPortResponse1(uint8_t transactionIDHigh, uint8_t transactionIDLow);
|
|
void serialPortResponse2(uint8_t transactionIDHigh, uint8_t transactionIDLow);
|
|
void l2capResponse1(uint8_t transactionIDHigh, uint8_t transactionIDLow);
|
|
void l2capResponse2(uint8_t transactionIDHigh, uint8_t transactionIDLow);
|
|
|
|
/* RFCOMM Commands */
|
|
void RFCOMM_Command(uint8_t* data, uint8_t nbytes);
|
|
void sendRfcomm(uint8_t channel, uint8_t direction, uint8_t CR, uint8_t channelType, uint8_t pfBit, uint8_t* data, uint8_t length);
|
|
void sendRfcommCredit(uint8_t channel, uint8_t direction, uint8_t CR, uint8_t channelType, uint8_t pfBit, uint8_t credit);
|
|
uint8_t calcFcs(uint8_t *data);
|
|
uint8_t __crc(uint8_t* data);
|
|
};
|
|
#endif |