forked from felis/USB_Host_Shield_2.0
/
SPP.h
188 lines (154 loc) · 7.84 KB
/
SPP.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
/* 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)
/* 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 &); // Include newline and carriage return
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[100]; // Create a 100 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