KeyMorse/Keyboard.cpp at master · doztrock/KeyMorse · GitHub

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
#include "Keyboard.hpp"

/**
 * Constructor
 */
Keyboard::Keyboard(void) {
    this->status = 0;
}

/**
 * Open the device and saves the file descriptor
 */
void Keyboard::init() {

    this->descriptor = open(DEVICE, O_NOCTTY);

    if (this->descriptor == ERROR) {
        perror("Error opening device...");
    }

}

/**
 * Close the device's file descriptor
 */
void Keyboard::deinit() {

    if (close(this->descriptor) == ERROR) {
        perror("Error closing device...");
    }

}

/**
 * Turn On the led
 */
void Keyboard::turnOn(void) {

    if (LED == K_SCROLLLOCK) {
        turnOnScrollLock();
        return;
    }

    if (ioctl(this->descriptor, KDSKBLED, LED) == ERROR) {
        perror("Error turning on...");
        return;
    }

    this->getStatus();
}

/**
 * Turn On the led
 */
void Keyboard::turnOff(void) {

    if (LED == K_SCROLLLOCK) {
        turnOffScrollLock();
        return;
    }

    this->getStatus();

    if (ioctl(this->descriptor, KDSKBLED, this->status ^ LED) == ERROR) {
        perror("Error turning off...");
        return;
    }

}

/**
 * Get the led status and saves it at <status>
 */
void Keyboard::getStatus() {

    if (ioctl(this->descriptor, KDGKBLED, &this->status) == ERROR) {
        perror("Error getting status...");
        return;
    }

}

void Keyboard::turnOnScrollLock() {

    system("xset led named \"Scroll Lock\"");

}

void Keyboard::turnOffScrollLock() {

    system("xset -led named \"Scroll Lock\"");

}