hrs3300 0.1.0

Platform-agnostic Rust driver for the HRS3300 heart rate sensor/monitor.
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

extern crate embedded_hal_mock as hal;
extern crate hrs3300;
use hal::i2c::Transaction as I2cTrans;
use hrs3300::{AlsResolution as Res, ConversionDelay, Gain, LedCurrent};

mod common;
use common::{destroy, new, BitFlags as BF, Register as Reg, DEV_ADDR};

#[test]
fn can_create_and_destroy() {
    let sensor = new(&[]);
    destroy(sensor);
}

macro_rules! set_test {
    ($name:ident, $method:ident, $register:ident, $value:expr $(, $arg:expr)*) => {
        #[test]
        fn $name() {
            let transactions = [I2cTrans::write_read(
                DEV_ADDR,
                vec![Reg::$register], vec![0],
            ),I2cTrans::write(
                DEV_ADDR,
                vec![Reg::$register, $value],
            )];
            let mut sensor = new(&transactions);
            sensor.$method($($arg),*).unwrap();
            destroy(sensor);
        }
    };
}

set_test!(enable_hrs, enable_hrs, ENABLE, BF::HEN);
set_test!(disable_hrs, disable_hrs, ENABLE, 0);

set_test!(enable_osc, enable_oscillator, PDRIVER, BF::OSC);
set_test!(disable_osc, disable_oscillator, PDRIVER, 0);

macro_rules! set_conv_delay_test {
    ($name:ident, $arg:ident, $expected:expr) => {
        set_test!(
            $name,
            set_conversion_delay,
            ENABLE,
            $expected,
            ConversionDelay::$arg
        );
    };
}
set_conv_delay_test!(set_conv_delay_800, Ms800, 0);
set_conv_delay_test!(set_conv_delay_400, Ms400, 1 << 4);
set_conv_delay_test!(set_conv_delay_200, Ms200, 2 << 4);
set_conv_delay_test!(set_conv_delay_100, Ms100, 3 << 4);
set_conv_delay_test!(set_conv_delay_75, Ms75, 4 << 4);
set_conv_delay_test!(set_conv_delay_50, Ms50, 5 << 4);
set_conv_delay_test!(set_conv_delay_12_5, Ms12_5, 6 << 4);
set_conv_delay_test!(set_conv_delay_0, Ms0, 7 << 4);

set_test!(set_gain_1, set_gain, HGAIN, 0, Gain::One);
set_test!(set_gain_2, set_gain, HGAIN, 1 << 2, Gain::Two);
set_test!(set_gain_4, set_gain, HGAIN, 2 << 2, Gain::Four);
set_test!(set_gain_8, set_gain, HGAIN, 3 << 2, Gain::Eight);
set_test!(set_gain_64, set_gain, HGAIN, 4 << 2, Gain::SixtyFour);

set_test!(set_als_res8, set_als_resolution, RESOLUTION, 0, Res::Bit8);
set_test!(set_als_res9, set_als_resolution, RESOLUTION, 1, Res::Bit9);
set_test!(set_als_res10, set_als_resolution, RESOLUTION, 2, Res::Bit10);
set_test!(set_als_res11, set_als_resolution, RESOLUTION, 3, Res::Bit11);
set_test!(set_als_res12, set_als_resolution, RESOLUTION, 4, Res::Bit12);
set_test!(set_als_res13, set_als_resolution, RESOLUTION, 5, Res::Bit13);
set_test!(set_als_res14, set_als_resolution, RESOLUTION, 6, Res::Bit14);
set_test!(set_als_res15, set_als_resolution, RESOLUTION, 7, Res::Bit15);
set_test!(set_als_res16, set_als_resolution, RESOLUTION, 8, Res::Bit16);
set_test!(set_als_res17, set_als_resolution, RESOLUTION, 9, Res::Bit17);
set_test!(set_alsres18, set_als_resolution, RESOLUTION, 10, Res::Bit18);

macro_rules! set_led_current_test {
    ($name:ident, $led_current:ident, $enable:expr, $pdriver:expr) => {
        #[test]
        fn $name() {
            let transactions = [
                I2cTrans::write_read(DEV_ADDR, vec![Reg::ENABLE], vec![0]),
                I2cTrans::write_read(DEV_ADDR, vec![Reg::PDRIVER], vec![0]),
                I2cTrans::write(DEV_ADDR, vec![Reg::ENABLE, $enable]),
                I2cTrans::write(DEV_ADDR, vec![Reg::PDRIVER, $pdriver]),
            ];
            let mut sensor = new(&transactions);
            sensor.set_led_current(LedCurrent::$led_current).unwrap();
            destroy(sensor);
        }
    };
}

set_led_current_test!(set_led_curr_12_5, Ma12_5, 0, 0);
set_led_current_test!(set_led_curr_20, Ma20, 0, BF::PDRIVE0);
set_led_current_test!(set_led_curr_30, Ma30, BF::PDRIVE1, 0);
set_led_current_test!(set_led_curr_40, Ma40, BF::PDRIVE1, BF::PDRIVE0);

macro_rules! get_test {
    ($name:ident, $method:ident, $register:ident, $value:expr, $expected:expr) => {
        #[test]
        fn $name() {
            let transactions = [I2cTrans::write_read(
                DEV_ADDR,
                vec![Reg::$register],
                vec![$value],
            )];
            let mut sensor = new(&transactions);
            let result = sensor.$method().unwrap();
            assert_eq!($expected, result);
            destroy(sensor);
        }
    };
}

get_test!(can_get_dev_id, device_id, ID, 0x21, 0x21);

#[test]
fn can_read_hrs() {
    let transactions = [
        I2cTrans::write_read(DEV_ADDR, vec![0x09], vec![0b1001_0110, 0b1111_1010]),
        I2cTrans::write_read(DEV_ADDR, vec![0x0F], vec![0b1110_0101]),
    ];
    let mut sensor = new(&transactions);
    let result = sensor.read_hrs().unwrap();
    assert_eq!(0b10_1001_0110_1010_0101, result);
    destroy(sensor);
}

#[test]
fn can_read_als() {
    let transactions = [
        I2cTrans::write_read(DEV_ADDR, vec![0x08], vec![0b1001_0110]),
        I2cTrans::write_read(DEV_ADDR, vec![0x0D], vec![0b1010_1010, 0b1111_1101]),
    ];
    let mut sensor = new(&transactions);
    let result = sensor.read_als().unwrap();
    assert_eq!(0b01_0101_0100_1011_0101, result);
    destroy(sensor);
}

#[test]
fn can_init() {
    let transactions = [
        I2cTrans::write(DEV_ADDR, vec![Reg::ENABLE, 0x68]),
        I2cTrans::write(DEV_ADDR, vec![Reg::PDRIVER, 0x0e]),
        I2cTrans::write(DEV_ADDR, vec![Reg::RESOLUTION, 0x66]),
        I2cTrans::write(DEV_ADDR, vec![Reg::HGAIN, 0x0d]),
    ];
    let mut sensor = new(&transactions);
    sensor.init().unwrap();
    destroy(sensor);
}