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
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
/*
* Copyright (C) 1995 Advanced RISC Machines Limited. All rights reserved.
*
* This software may be freely used, copied, modified, and distributed
* provided that the above copyright notice is preserved in all copies of the
* software.
*/
/* -*-C-*-
*
* $Revision: 1.2 $
* $Date: 2003/01/16 10:40:15 $
*
*/
#ifndef angsd_unixcomm_h
#define angsd_unixcomm_h
#include <errno.h>
#if defined(BSD)
# define ERRNO_FOR_BLOCKED_IO EWOULDBLOCK
#else
# define ERRNO_FOR_BLOCKED_IO EAGAIN
#endif
/*
* Function: Unix_MatchValidSerialDevice
* Purpose: check that the serial driver/port name is valid
* and return the actual device name if it is.
*
* Params:
* Input: name Name of device going to be used
*
* Returns:
* OK: Pointer to name of the device matched
* Error or unrecognised deivce: 0
*/
extern const char *Unix_MatchValidSerialDevice(const char *name);
/*
* Function: Unix_IsSerialInUse
* Purpose: check whether the serial port is in use
*
* Params:
* Input: Nothing
*
* Returns:
* OK: 0 Serial device not in use
* Error: -1 Serial device in use
*/
extern int Unix_IsSerialInUse(void);
/*
* Function: Unix_OpenSerial
* Purpose: open the serial port
*
* Params:
* Input: name Name of device to open
*
* Returns: Unix 'open' returns
*/
extern int Unix_OpenSerial(const char *name);
/*
* Function: Unix_CloseSerial
* Purpose: close the serial port
*
* Params:
* Input: Nothing
*
* Returns: Nothing
*/
extern void Unix_CloseSerial(void);
/*
* Function: Unix_ReadSerial
* Purpose: reads a specified number of bytes (or less) from the serial port
*
* Params:
* Input: buf Buffer to store read bytes
* n Maximum number of bytes to read
*
* Returns: Unix 'read' returns
*/
extern int Unix_ReadSerial(unsigned char *buf, int n, bool block);
/*
* Function: Unix_WriteSerial
* Purpose: writes a specified number of bytes (or less) to the serial port
*
* Params:
* Input: buf Buffer to write bytes from
* n Maximum number of bytes to write
*
* Returns: Unix 'write' returns
*/
extern int Unix_WriteSerial(unsigned char *buf, int n);
/*
* Function: Unix_ResetSerial
* Purpose: resets the serial port for another operation
*
* Params:
* Input: Nothing
*
* Returns: Nothing
*/
extern void Unix_ResetSerial(void);
/*
* Function: Unix_SetSerialBaudRate
* Purpose: check that the serial driver/port name is valid
*
* Params:
* Input: baudrate termios value for baud rate
*
* Returns: Nothing
*/
extern void Unix_SetSerialBaudRate(int baudrate);
/*
* Function: Unix_ioctlNonBlocking
* Purpose: sets the serial port to non-blocking IO
*
* Params:
* Input: Nothing
*
* Returns: Nothing
*/
extern void Unix_ioctlNonBlocking(void);
/*
* Function: Unix_IsValidParallelDevice
* Purpose: check whether the combined serial and parallel device specification
* is ok, and return the ports selected
*
* Params:
* Input: portstring - is a string which specifies which serial
* and parallel ports are to be used. Can
* include s=<val> and p=<val> separated by a
* comma.
*
* Returns:
* Output: *sername - returns the device name of the chosen serial port
* *parname - returns the device name of the chosen parallel port
* If either of these is NULL on return then the match failed.
*/
extern void Unix_IsValidParallelDevice(
const char *portstring, char **sername, char **parname
);
/*
* Function: Unix_IsParallelInUse
* Purpose: check whether the parallel port is in use
*
* Params:
* Input: Nothing
*
* Returns:
* OK: 0 Parallel device not in use
* Error: -1 Parallel device in use
*/
extern int Unix_IsParallelInUse(void);
/*
* Function: Unix_OpenParallel
* Purpose: open the parallel port
*
* Params:
* Input: name Name of device to open
*
* Returns: Unix 'open' returns
*/
extern int Unix_OpenParallel(const char *name);
/*
* Function: Unix_CloseParallel
* Purpose: close the parallel port
*
* Params:
* Input: Nothing
*
* Returns: Nothing
*/
extern void Unix_CloseParallel(void);
/*
* Function: Unix_WriteParallel
* Purpose: writes a specified number of bytes (or less) to the parallel port
*
* Params:
* Input: buf Buffer to write bytes from
* n Maximum number of bytes to write
*
* Returns: Unix 'write' returns
*/
extern unsigned int Unix_WriteParallel(unsigned char *buf, int n);
/*
* Function: Unix_ResetParallel
* Purpose: resets the parallel port for another operation
*
* Params:
* Input: Nothing
*
* Returns: Nothing
*/
extern void Unix_ResetParallel(void);
#endif /* ndef angsd_unixcomm_h */
/* EOF unixcomm.h */
|
