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
extern crate serial_unix;
extern crate serial;
extern crate rgb;
use std::io::Write;
const BLACK: rgb::RGB8 = rgb::RGB8 { r: 0, g: 0, b: 0 };
pub const PIXELS_PER_CHANNEL: u8 = 16;
pub const CHANNELS: u8 = 4;
pub const TOTAL_PIXELS: usize = PIXELS_PER_CHANNEL as usize * CHANNELS as usize;
pub struct Mote {
port: serial_unix::TTYPort,
current: [rgb::RGB8; TOTAL_PIXELS as usize],
}
impl Mote {
pub fn new(path: &str, gamma_correction: bool) -> Mote {
let mut mote = Mote {
port: serial_unix::TTYPort::open(std::path::Path::new(path)).unwrap(),
current: [BLACK; TOTAL_PIXELS],
};
mote.init(gamma_correction);
mote.clear();
mote
}
pub fn init(&mut self, gamma_correction: bool) {
for channel in 0..CHANNELS {
self.configure_channel(channel + 1, PIXELS_PER_CHANNEL, gamma_correction);
}
}
pub fn clear(&mut self) {
self.write(&[BLACK; TOTAL_PIXELS])
}
fn configure_channel(&mut self, channel: u8, num_pixels: u8, gamma_correction: bool) {
self.port.write(&[0x6D, 0x6F, 0x74, 0x65]).unwrap();
self.port.write(&[0x63]).unwrap();
self.port.write(&[channel]).unwrap();
self.port.write(&[num_pixels]).unwrap();
self.port
.write(&[if gamma_correction { 1 } else { 0 }])
.unwrap();
}
pub fn read(&self) -> &[rgb::RGB8; TOTAL_PIXELS] {
&self.current
}
pub fn write(&mut self, pixels: &[rgb::RGB8; TOTAL_PIXELS]) {
self.port.write(&[0x6D, 0x6F, 0x74, 0x65]).unwrap();
self.port.write(&[0x6F]).unwrap();
for pixel in pixels.iter() {
self.port.write(&[pixel.b, pixel.g, pixel.r]).unwrap();
}
self.current = pixels.clone();
}
}