embedded-nrf24l01 0.2.0

A driver for NRF24L01(+) transceivers on embedded-hal platforms.
Documentation 
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

pub use crate::payload::Payload;
use crate::registers::Register;
use core::marker::PhantomData;

pub trait Command {
    fn len(&self) -> usize;
    fn encode(&self, data: &mut [u8]);

    type Response;
    fn decode_response(data: &[u8]) -> Self::Response;
}

pub struct ReadRegister<R: Register> {
    register: PhantomData<R>,
}

impl<R: Register> ReadRegister<R> {
    pub fn new() -> Self {
        ReadRegister {
            register: PhantomData,
        }
    }
}

impl<R: Register> Command for ReadRegister<R> {
    fn len(&self) -> usize {
        1 + R::read_len()
    }

    fn encode(&self, buf: &mut [u8]) {
        buf[0] = R::addr();
    }

    type Response = R;
    fn decode_response(data: &[u8]) -> Self::Response {
        R::decode(&data[1..])
    }
}

pub struct WriteRegister<R: Register> {
    register: R,
}

impl<R: Register> WriteRegister<R> {
    pub fn new(register: R) -> Self {
        WriteRegister { register }
    }
}

impl<R: Register> Command for WriteRegister<R> {
    fn len(&self) -> usize {
        1 + self.register.write_len()
    }

    fn encode(&self, buf: &mut [u8]) {
        buf[0] = 0b10_0000 | R::addr();
        self.register.encode(&mut buf[1..]);
    }

    type Response = ();
    fn decode_response(_: &[u8]) -> Self::Response {}
}

pub struct ReadRxPayload {
    payload_width: usize,
}

impl ReadRxPayload {
    pub fn new(payload_width: usize) -> Self {
        ReadRxPayload { payload_width }
    }
}

impl Command for ReadRxPayload {
    fn len(&self) -> usize {
        1 + self.payload_width
    }

    fn encode(&self, buf: &mut [u8]) {
        buf[0] = 0b0110_0001;
    }

    type Response = Payload;
    fn decode_response(data: &[u8]) -> Self::Response {
        Payload::new(&data[1..])
    }
}

pub struct WriteTxPayload<'a> {
    data: &'a [u8],
}

impl<'a> WriteTxPayload<'a> {
    pub fn new(data: &'a [u8]) -> Self {
        WriteTxPayload { data }
    }
}

impl<'a> Command for WriteTxPayload<'a> {
    fn len(&self) -> usize {
        1 + self.data.len()
    }

    fn encode(&self, buf: &mut [u8]) {
        buf[0] = 0b1010_0000;
        buf[1..].copy_from_slice(self.data);
    }

    type Response = ();
    fn decode_response(_: &[u8]) -> Self::Response {}
}

pub struct ReadRxPayloadWidth;

impl Command for ReadRxPayloadWidth {
    fn len(&self) -> usize {
        2
    }

    fn encode(&self, buf: &mut [u8]) {
        buf[0] = 0b0110_0000;
    }

    type Response = u8;
    fn decode_response(data: &[u8]) -> Self::Response {
        data[1]
    }
}

pub struct FlushRx;

impl Command for FlushRx {
    fn len(&self) -> usize {
        1
    }

    fn encode(&self, buf: &mut [u8]) {
        buf[0] = 0b1110_0010;
    }

    type Response = ();
    fn decode_response(_: &[u8]) -> Self::Response {}
}

pub struct FlushTx;

impl Command for FlushTx {
    fn len(&self) -> usize {
        1
    }

    fn encode(&self, buf: &mut [u8]) {
        buf[0] = 0b1110_0001;
    }

    type Response = ();
    fn decode_response(_: &[u8]) -> Self::Response {}
}

pub struct Nop;

impl Command for Nop {
    fn len(&self) -> usize {
        1
    }

    fn encode(&self, buf: &mut [u8]) {
        buf[0] = 0b1111_1111;
    }

    type Response = ();
    fn decode_response(_: &[u8]) -> Self::Response {}
}