| line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
|
1
|
|
|
|
|
|
|
package RPi::Serial; |
|
2
|
|
|
|
|
|
|
|
|
3
|
1
|
|
|
1
|
|
21646
|
use 5.006; |
|
|
1
|
|
|
|
|
6
|
|
|
4
|
1
|
|
|
1
|
|
7
|
use strict; |
|
|
1
|
|
|
|
|
3
|
|
|
|
1
|
|
|
|
|
27
|
|
|
5
|
1
|
|
|
1
|
|
7
|
use warnings; |
|
|
1
|
|
|
|
|
7
|
|
|
|
1
|
|
|
|
|
39
|
|
|
6
|
|
|
|
|
|
|
|
|
7
|
1
|
|
|
1
|
|
581
|
use parent 'WiringPi::API'; |
|
|
1
|
|
|
|
|
333
|
|
|
|
1
|
|
|
|
|
6
|
|
|
8
|
|
|
|
|
|
|
|
|
9
|
|
|
|
|
|
|
our $VERSION = '0.01'; |
|
10
|
|
|
|
|
|
|
|
|
11
|
|
|
|
|
|
|
sub new { |
|
12
|
|
|
|
|
|
|
my ($class, $device, $baud) = @_; |
|
13
|
|
|
|
|
|
|
my $self = bless {}, $class; |
|
14
|
|
|
|
|
|
|
$self->fd($self->serial_open($device, $baud)); |
|
15
|
|
|
|
|
|
|
return $self; |
|
16
|
|
|
|
|
|
|
} |
|
17
|
|
|
|
|
|
|
sub close { |
|
18
|
|
|
|
|
|
|
$_[0]->serial_close($_[0]->fd); |
|
19
|
|
|
|
|
|
|
} |
|
20
|
|
|
|
|
|
|
sub avail { |
|
21
|
|
|
|
|
|
|
return $_[0]->serial_data_avail($_[0]->fd); |
|
22
|
|
|
|
|
|
|
} |
|
23
|
|
|
|
|
|
|
sub fd { |
|
24
|
|
|
|
|
|
|
my $self = shift; |
|
25
|
|
|
|
|
|
|
$self->{fd} = shift if @_; |
|
26
|
|
|
|
|
|
|
return $self->{fd}; |
|
27
|
|
|
|
|
|
|
} |
|
28
|
|
|
|
|
|
|
sub flush { |
|
29
|
|
|
|
|
|
|
$_[0]->serial_flush($_[0]->fd); |
|
30
|
|
|
|
|
|
|
} |
|
31
|
|
|
|
|
|
|
sub putc { |
|
32
|
|
|
|
|
|
|
$_[0]->serial_put_char($_[0]->fd, $_[1]); |
|
33
|
|
|
|
|
|
|
} |
|
34
|
|
|
|
|
|
|
sub puts { |
|
35
|
|
|
|
|
|
|
$_[0]->serial_puts($_[0]->fd, $_[1]); |
|
36
|
|
|
|
|
|
|
} |
|
37
|
|
|
|
|
|
|
sub getc { |
|
38
|
|
|
|
|
|
|
return $_[0]->serial_get_char($_[0]->fd); |
|
39
|
|
|
|
|
|
|
} |
|
40
|
|
|
|
|
|
|
sub gets { |
|
41
|
|
|
|
|
|
|
return $_[0]->serial_gets($_[0]->fd, $_[1]); |
|
42
|
|
|
|
|
|
|
} |
|
43
|
|
|
|
|
|
|
|
|
44
|
|
|
|
|
|
|
sub __placeholder {} # vim folds |
|
45
|
|
|
|
|
|
|
1; |
|
46
|
|
|
|
|
|
|
|
|
47
|
|
|
|
|
|
|
=head1 NAME |
|
48
|
|
|
|
|
|
|
|
|
49
|
|
|
|
|
|
|
RPi::Serial - Basic read/write interface to a serial port |
|
50
|
|
|
|
|
|
|
|
|
51
|
|
|
|
|
|
|
=head1 SYNOPSIS |
|
52
|
|
|
|
|
|
|
|
|
53
|
|
|
|
|
|
|
use RPi::Serial; |
|
54
|
|
|
|
|
|
|
|
|
55
|
|
|
|
|
|
|
my $dev = "/dev/ttyAMA0"; |
|
56
|
|
|
|
|
|
|
my $baud = 115200; |
|
57
|
|
|
|
|
|
|
|
|
58
|
|
|
|
|
|
|
my $ser = RPi::Serial->new($dev, $baud); |
|
59
|
|
|
|
|
|
|
|
|
60
|
|
|
|
|
|
|
$ser->putc(5); |
|
61
|
|
|
|
|
|
|
$ser->puts("hello, world!"); |
|
62
|
|
|
|
|
|
|
|
|
63
|
|
|
|
|
|
|
my $char = $ser->getc; |
|
64
|
|
|
|
|
|
|
|
|
65
|
|
|
|
|
|
|
my $num_bytes = 12; |
|
66
|
|
|
|
|
|
|
my $str = $ser->gets($num_bytes); |
|
67
|
|
|
|
|
|
|
|
|
68
|
|
|
|
|
|
|
$ser->flush; |
|
69
|
|
|
|
|
|
|
|
|
70
|
|
|
|
|
|
|
my $bytes_available = $ser->avail; |
|
71
|
|
|
|
|
|
|
|
|
72
|
|
|
|
|
|
|
$ser->close; |
|
73
|
|
|
|
|
|
|
|
|
74
|
|
|
|
|
|
|
=head1 METHODS |
|
75
|
|
|
|
|
|
|
|
|
76
|
|
|
|
|
|
|
=head2 new($device, $baud); |
|
77
|
|
|
|
|
|
|
|
|
78
|
|
|
|
|
|
|
Opens the specified serial port at the specified baud rate, and returns a new |
|
79
|
|
|
|
|
|
|
L object. |
|
80
|
|
|
|
|
|
|
|
|
81
|
|
|
|
|
|
|
Parameters: |
|
82
|
|
|
|
|
|
|
|
|
83
|
|
|
|
|
|
|
$device |
|
84
|
|
|
|
|
|
|
|
|
85
|
|
|
|
|
|
|
Mandatory, String: The serial device to open (eg: C<"/dev/ttyAMA0">. |
|
86
|
|
|
|
|
|
|
|
|
87
|
|
|
|
|
|
|
$baud |
|
88
|
|
|
|
|
|
|
|
|
89
|
|
|
|
|
|
|
Mandatory, Integer: A valud baud rate to use. |
|
90
|
|
|
|
|
|
|
|
|
91
|
|
|
|
|
|
|
=head2 close |
|
92
|
|
|
|
|
|
|
|
|
93
|
|
|
|
|
|
|
Closes an already open serial device. |
|
94
|
|
|
|
|
|
|
|
|
95
|
|
|
|
|
|
|
=head2 avail |
|
96
|
|
|
|
|
|
|
|
|
97
|
|
|
|
|
|
|
Returns the number of bytes waiting to be read if any. |
|
98
|
|
|
|
|
|
|
|
|
99
|
|
|
|
|
|
|
=head2 flush |
|
100
|
|
|
|
|
|
|
|
|
101
|
|
|
|
|
|
|
Flush any data currently in the serial buffer. |
|
102
|
|
|
|
|
|
|
|
|
103
|
|
|
|
|
|
|
=head2 fd |
|
104
|
|
|
|
|
|
|
|
|
105
|
|
|
|
|
|
|
Returns the C file descriptor for the current serial object. |
|
106
|
|
|
|
|
|
|
|
|
107
|
|
|
|
|
|
|
=head2 getc |
|
108
|
|
|
|
|
|
|
|
|
109
|
|
|
|
|
|
|
Retrieve a single character from the serial port. |
|
110
|
|
|
|
|
|
|
|
|
111
|
|
|
|
|
|
|
=head2 gets($num_bytes) |
|
112
|
|
|
|
|
|
|
|
|
113
|
|
|
|
|
|
|
Read a specified number of bytes into a string. |
|
114
|
|
|
|
|
|
|
|
|
115
|
|
|
|
|
|
|
Parameters: |
|
116
|
|
|
|
|
|
|
|
|
117
|
|
|
|
|
|
|
$num_bytes |
|
118
|
|
|
|
|
|
|
|
|
119
|
|
|
|
|
|
|
Mandatory, Integer; The number of bytes to read. If this number is larger than |
|
120
|
|
|
|
|
|
|
what is available to be read, a 10 second timeout will briefly hand your |
|
121
|
|
|
|
|
|
|
application. |
|
122
|
|
|
|
|
|
|
|
|
123
|
|
|
|
|
|
|
=head2 putc($char) |
|
124
|
|
|
|
|
|
|
|
|
125
|
|
|
|
|
|
|
Writes a single character to the serial device. |
|
126
|
|
|
|
|
|
|
|
|
127
|
|
|
|
|
|
|
Parameters: |
|
128
|
|
|
|
|
|
|
|
|
129
|
|
|
|
|
|
|
$char |
|
130
|
|
|
|
|
|
|
|
|
131
|
|
|
|
|
|
|
Mandatory, Unsigned Char: The character to write to the port. |
|
132
|
|
|
|
|
|
|
|
|
133
|
|
|
|
|
|
|
=head2 puts($string) |
|
134
|
|
|
|
|
|
|
|
|
135
|
|
|
|
|
|
|
Write a character string to the serial device. |
|
136
|
|
|
|
|
|
|
|
|
137
|
|
|
|
|
|
|
Parameters: |
|
138
|
|
|
|
|
|
|
|
|
139
|
|
|
|
|
|
|
$string |
|
140
|
|
|
|
|
|
|
|
|
141
|
|
|
|
|
|
|
Mandatory, String: Whatever you want to write to the serial line. |
|
142
|
|
|
|
|
|
|
|
|
143
|
|
|
|
|
|
|
=head1 AUTHOR |
|
144
|
|
|
|
|
|
|
|
|
145
|
|
|
|
|
|
|
Steve Bertrand, C<< >> |
|
146
|
|
|
|
|
|
|
|
|
147
|
|
|
|
|
|
|
=head1 LICENSE AND COPYRIGHT |
|
148
|
|
|
|
|
|
|
|
|
149
|
|
|
|
|
|
|
Copyright 2017 Steve Bertrand. |
|
150
|
|
|
|
|
|
|
|
|
151
|
|
|
|
|
|
|
This program is free software; you can redistribute it and/or modify it |
|
152
|
|
|
|
|
|
|
under the terms of either: the GNU General Public License as published |
|
153
|
|
|
|
|
|
|
by the Free Software Foundation; or the Artistic License. |
|
154
|
|
|
|
|
|
|
|
|
155
|
|
|
|
|
|
|
See L for more information. |