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
|
#ifndef SERIAL_H
#define SERIAL_H
#ifdef ALLEGRO_WINDOWS
#define BAUD_RATE_9600 9600
#define BAUD_RATE_38400 38400
#define BAUD_RATE_115200 115200
#define BAUD_RATE_230400 230400
#elif TERMIOS
#include <termios.h>
#define BAUD_RATE_9600 B9600
#define BAUD_RATE_38400 B38400
#define BAUD_RATE_115200 B115200
#define BAUD_RATE_230400 B230400
#else
#define DZCOMM_SECONDARY_INCLUDE
#include <dzcomm.h>
#define BAUD_RATE_9600 _9600
#define BAUD_RATE_38400 _38400
#define BAUD_RATE_115200 _115200
#endif
//read_comport returned data type
#define EMPTY 0
#define DATA 1
#define PROMPT 2
#define SPECIAL_DELIMITER '\t'
//comport status
#define READY 0
#define NOT_OPEN 1
#define USER_IGNORED 2
//process_response return values
#define HEX_DATA 0
#define BUS_BUSY 1
#define BUS_ERROR 2
#define BUS_INIT_ERROR 3
#define UNABLE_TO_CONNECT 4
#define CAN_ERROR 5
#define DATA_ERROR 6
#define DATA_ERROR2 7
#define ERR_NO_DATA 8
#define BUFFER_FULL 9
#define SERIAL_ERROR 10
#define UNKNOWN_CMD 11
#define RUBBISH 12
#define INTERFACE_ID 13
#define INTERFACE_ELM320 13
#define INTERFACE_ELM322 14
#define INTERFACE_ELM323 15
#define INTERFACE_ELM327 16
#define INTERFACE_OBDLINK 17
#define STN_MFR_STRING 18
#define ELM_MFR_STRING 19
// timeouts
#define OBD_REQUEST_TIMEOUT 12000
#define ATZ_TIMEOUT 2000
#define AT_TIMEOUT 1000
#define ECU_TIMEOUT 5000
// function prototypes
void serial_module_init();
void serial_module_shutdown();
int open_comport();
void close_comport();
void send_command(const char *command);
int read_comport(char *response);
void start_serial_timer(int delay);
void stop_serial_timer();
int process_response(const char *cmd_sent, char *msg_received);
int find_valid_response(char *buf, char *response, const char *filter, char **stop);
const char *get_protocol_string(int interface_type, int protocol_id);
int display_error_message(int error, int retry);
// variables
extern volatile int serial_time_out;
extern volatile int serial_timer_running;
struct COMPORT {
int number;
int baud_rate;
int status; // READY, NOT_OPEN, USER_IGNORED
};
extern struct COMPORT comport;
#endif
|
