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use core::convert::TryInto;
pub mod decoder;
use crate::{
cmd::{AddressCommand, Command},
protocol::Protocol,
};
pub mod encoder;
#[cfg(test)]
mod tests;
const ADDR_MASK: u16 = 0b_0000_0111_1100_0000;
const CMD_MASK: u16 = 0b_0000_0000_0011_1111;
const START_MASK: u16 = 0b_0011_0000_0000_0000;
const TOGGLE_MASK: u16 = 0b_0000_1000_0000_0000;
const ADDR_SHIFT: u32 = 6;
const START_SHIFT: u32 = 12;
const TOGGLE_SHIFT: u32 = 11;
pub struct Rc5;
impl Protocol for Rc5 {
type Cmd = Rc5Command;
}
#[derive(Debug, Eq, PartialEq, Copy, Clone)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
pub struct Rc5Command {
pub addr: u8,
pub cmd: u8,
pub start: u8,
pub toggle: bool,
}
impl Rc5Command {
pub const fn new(addr: u8, cmd: u8, toggle: bool) -> Self {
Self {
addr,
cmd,
start: 0b11,
toggle,
}
}
pub const fn unpack(bits: u16) -> Self {
let addr = ((bits & ADDR_MASK) >> ADDR_SHIFT) as u8;
let cmd = (bits & CMD_MASK) as u8;
let start = ((bits & START_MASK) >> START_SHIFT) as u8;
let toggle = (bits & TOGGLE_MASK) != 0;
Self {
addr,
cmd,
start,
toggle,
}
}
pub fn pack(&self) -> u16 {
u16::from(self.addr) << ADDR_SHIFT
| u16::from(self.cmd)
| u16::from(self.toggle) << TOGGLE_SHIFT
| u16::from(self.start) << START_SHIFT
}
}
impl Command for Rc5Command {
fn is_repeat(&self) -> bool {
self.toggle
}
}
impl AddressCommand for Rc5Command {
fn address(&self) -> u32 {
self.addr.into()
}
fn command(&self) -> u32 {
self.cmd.into()
}
fn create(addr: u32, cmd: u32) -> Option<Rc5Command> {
let addr: u8 = addr.try_into().ok()?;
let cmd = cmd.try_into().ok()?;
Some(Rc5Command::new(addr, cmd, false))
}
}