btle/le/advertisement_structures/
tx_power_level.rs

1use crate::le::advertisement::{
2    AdStructureType, AdType, ConstAdStructType, UnpackableAdStructType,
3};
4use crate::PackError;
5use core::fmt::Formatter;
6
7#[derive(Copy, Clone, Ord, PartialOrd, Eq, PartialEq, Default, Debug, Hash)]
8pub struct TxPowerLevel {
9    pub dbm: i8,
10}
11impl core::fmt::Display for TxPowerLevel {
12    fn fmt(&self, f: &mut Formatter<'_>) -> core::fmt::Result {
13        write!(f, "{}dbm", self.dbm)
14    }
15}
16impl TxPowerLevel {
17    pub const AD_TYPE: AdType = AdType::TxPowerLevel;
18
19    pub const BYTE_LEN: usize = 1;
20    pub fn new(dbm: i8) -> TxPowerLevel {
21        TxPowerLevel { dbm }
22    }
23}
24
25impl AdStructureType for TxPowerLevel {
26    fn ad_type(&self) -> AdType {
27        Self::AD_TYPE
28    }
29
30    fn byte_len(&self) -> usize {
31        Self::BYTE_LEN
32    }
33
34    fn pack_into(&self, buf: &mut [u8]) -> Result<(), PackError> {
35        PackError::expect_length(Self::BYTE_LEN, buf)?;
36        buf[0] = self.dbm as u8;
37        Ok(())
38    }
39}
40impl UnpackableAdStructType for TxPowerLevel {
41    fn unpack_from(ad_type: AdType, buf: &[u8]) -> Result<Self, PackError>
42    where
43        Self: Sized,
44    {
45        if ad_type != Self::AD_TYPE {
46            Err(PackError::InvalidFields)
47        } else {
48            PackError::expect_length(Self::BYTE_LEN, buf)?;
49            Ok(Self::new(buf[0] as i8))
50        }
51    }
52}
53impl ConstAdStructType for TxPowerLevel {
54    const AD_TYPE: AdType = AdType::TxPowerLevel;
55}
btle/le/advertisement_structures/tx_power_level.rs

btle/le/advertisement_structures/
tx_power_level.rs
