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

//! Nec

pub mod decoder;
pub mod encoder;

mod apple;
mod nec16;
mod raw;
mod samsung;
mod standard;
#[cfg(test)]
mod tests;

use core::marker::PhantomData;

pub use apple::AppleNecCommand;
pub use nec16::Nec16Command;
pub use raw::NecDebugCmd;
pub use samsung::SamsungNecCommand;
pub use standard::NecCommand;

use crate::protocol::Protocol;

/// Nec Receiver with Nec standard bit encoding and Standard timing
pub struct Nec<C: NecCommandVariant = NecCommand> {
    // Nec Command type
    pub(crate) cmd: PhantomData<C>,
}

impl<C: NecCommandVariant> Protocol for Nec<C> {
    type Cmd = C;
}

/// Nec variant with Samsung bit encoding and Samsung timing
pub type SamsungNec = Nec<SamsungNecCommand>;

/// Nec variant with 16 bit address and Nec standard timing
pub type Nec16 = Nec<Nec16Command>;

/// Nec variant with Apple specific bit encoding and Standard timing
pub type AppleNec = Nec<AppleNecCommand>;

/// Nec variant without any specific bit unpacking, useful for debugging
pub type NecDebug = Nec<NecDebugCmd>;

/// Nec Command Variant
pub trait NecCommandVariant: Sized {
    const PULSE_DISTANCE: &'static NecPulseLen;

    /// Validate the bits as a Command of this type
    fn validate(bits: u32) -> bool;

    /// Unpack the bits into Command
    fn unpack(bits: u32, repeat: bool) -> Option<Self>;

    /// Pack command into a u32
    fn pack(&self) -> u32;
}

const NEC_STANDARD_TIMING: &NecPulseLen = &NecPulseLen {
    header_high: 9000,
    header_low: 4500,
    repeat_low: 2250,
    data_high: 560,
    data_zero_low: 560,
    data_one_low: 1690,
};

const NEC_SAMSUNG_TIMING: &NecPulseLen = &NecPulseLen {
    header_high: 4500,
    header_low: 4500,
    repeat_low: 2250,
    data_zero_low: 560,
    data_high: 560,
    data_one_low: 1690,
};

/// High and low times for Nec-like protocol. In us.
#[derive(Copy, Clone)]
pub struct NecPulseLen {
    /// Header high
    header_high: u32,
    /// Header low
    header_low: u32,
    /// Repeat low
    repeat_low: u32,
    /// Data high
    data_high: u32,
    /// Zero low
    data_zero_low: u32,
    /// One low
    data_one_low: u32,
}