ezsp 7.3.1

Ember ZNet Serial Protocol
Documentation 
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use core::fmt::{self, Display};

use bitflags::bitflags;
use le_stream::{FromLeStream, ToLeStream};

pub use self::sleep_mode::SleepMode;

mod sleep_mode;

/// Low byte control field of the frame header when it represents a command.
#[derive(Clone, Copy, Debug, Default, Eq, Hash, PartialEq, FromLeStream, ToLeStream)]
pub struct Command(u8);

bitflags! {
    impl Command: u8 {
        /// The response flag. Should be set.
        const IS_RESPONSE = 0b1000_0000;
        /// Network index bit no. 1.
        const NETWORK_INDEX_1 = 0b0100_0000;
        /// Network index bit no. 2.
        const NETWORK_INDEX_0 = 0b0010_0000;
        /// Sleep mode bit no. 1.
        const SLEEP_MODE_1 = 0b0000_0010;
        /// Sleep mode bit no. 2.
        const SLEEP_MODE_0 = 0b0000_0001;
    }
}

impl Command {
    /// Returns `true` if the command is a response else `false`.
    #[must_use]
    pub const fn is_response(self) -> bool {
        self.contains(Self::IS_RESPONSE)
    }

    /// Returns the network index.
    #[must_use]
    pub fn network_index(self) -> u8 {
        (self.bits() & (Self::NETWORK_INDEX_1 | Self::NETWORK_INDEX_0).bits()) >> 5
    }

    /// Returns the sleep mode.
    #[must_use]
    pub const fn sleep_mode(self) -> SleepMode {
        match (
            self.contains(Self::SLEEP_MODE_1),
            self.contains(Self::SLEEP_MODE_0),
        ) {
            (true, true) => SleepMode::Reserved,
            (true, false) => SleepMode::PowerDown,
            (false, true) => SleepMode::DeepSleep,
            (false, false) => SleepMode::Idle,
        }
    }
}

impl Display for Command {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(
            f,
            "Command {{ is_response: {}, network_index: {}, sleep_mode: {} }}",
            self.is_response(),
            self.network_index(),
            self.sleep_mode()
        )
    }
}