scd30_interface/data/
firmware_version.rs

1use crate::{error::DataError, util::check_deserialization};
2
3/// The firmware version of the sensor.
4#[derive(Clone, Copy, Debug)]
5pub struct FirmwareVersion {
6    /// Major version.
7    pub major: u8,
8    /// Minor version.
9    pub minor: u8,
10}
11
12#[cfg(feature = "defmt")]
13impl defmt::Format for FirmwareVersion {
14    fn format(&self, f: defmt::Formatter) {
15        defmt::write!(f, "v{}.{}", self.major, self.minor)
16    }
17}
18
19impl TryFrom<&[u8]> for FirmwareVersion {
20    type Error = DataError;
21
22    /// Converts buffered data to a [FirmwareVersion] value.
23    ///
24    /// # Errors
25    ///
26    /// - [ReceivedBufferWrongSize](crate::error::DataError::ReceivedBufferWrongSize) if the `data` buffer is not big enough for the data
27    ///   that should have been received.
28    /// - [CrcFailed](crate::error::DataError::CrcFailed) if the CRC of the received data does not match.
29    fn try_from(data: &[u8]) -> Result<Self, Self::Error> {
30        check_deserialization(data, 3)?;
31        Ok(Self {
32            major: data[0],
33            minor: data[1],
34        })
35    }
36}
37
38#[cfg(test)]
39mod tests {
40    use super::*;
41
42    #[test]
43    fn deserialize_specification_sample_works() {
44        let data = [0x03, 0x42, 0xF3];
45        let version = FirmwareVersion::try_from(&data[..]).unwrap();
46        assert_eq!(version.major, 3);
47        assert_eq!(version.minor, 66);
48    }
49}
scd30_interface/data/firmware_version.rs

scd30_interface/data/
firmware_version.rs
