Renamed W5500 -> Device, added an Interface struct that should implement the embedded-nal traits, used it to internalize the mutability of the device

src/w5500.rs

@@ -1,87 +0,0 @@
-use crate::inactive_w5500::InactiveW5500;
-use crate::uninitialized_w5500::UninitializedW5500;
-use bit_field::BitArray;
-use bus::{ActiveBus, ActiveFourWire, ActiveThreeWire, FourWire, ThreeWire};
-use embedded_hal::digital::v2::OutputPin;
-use embedded_hal::spi::FullDuplex;
-use network::Network;
-use register;
-use socket::Socket;
-
-pub struct W5500<SpiBus: ActiveBus, NetworkImpl: Network> {
-    pub bus: SpiBus,
-    network: NetworkImpl,
-    sockets: [u8; 1],
-}
-
-pub enum ResetError<E> {
-    SocketsNotReleased,
-    Other(E),
-}
-
-impl<E> From<E> for ResetError<E> {
-    fn from(error: E) -> ResetError<E> {
-        ResetError::Other(error)
-    }
-}
-
-impl<SpiBus: ActiveBus, NetworkImpl: Network> W5500<SpiBus, NetworkImpl> {
-    pub fn new(bus: SpiBus, network: NetworkImpl) -> Self {
-        W5500 {
-            bus,
-            network,
-            sockets: [0b11111111],
-        }
-    }
-
-    pub fn reset(mut self) -> Result<UninitializedW5500<SpiBus>, ResetError<SpiBus::Error>> {
-        if self.sockets != [0b11111111] {
-            Err(ResetError::SocketsNotReleased)
-        } else {
-            self.clear_mode()?;
-            Ok(UninitializedW5500::new(self.bus))
-        }
-    }
-
-    fn clear_mode(&mut self) -> Result<(), SpiBus::Error> {
-        // reset bit
-        let mut mode = [0b10000000];
-        self.bus
-            .write_frame(register::COMMON, register::common::MODE, &mut mode)?;
-        Ok(())
-    }
-
-    pub fn take_socket(&mut self) -> Option<Socket> {
-        for index in 0..8 {
-            if self.sockets.get_bit(index) {
-                self.sockets.set_bit(index, false);
-                return Some(Socket::new(index as u8));
-            }
-        }
-        None
-    }
-
-    pub fn release_socket(&mut self, socket: Socket) -> () {
-        self.sockets.set_bit(socket.index.into(), true);
-    }
-
-    pub fn release(self) -> (SpiBus, NetworkImpl) {
-        (self.bus, self.network)
-    }
-}
-
-impl<Spi: FullDuplex<u8>, ChipSelect: OutputPin, NetworkImpl: Network>
-    W5500<ActiveFourWire<Spi, ChipSelect>, NetworkImpl>
-{
-    pub fn deactivate(self) -> (InactiveW5500<FourWire<ChipSelect>, NetworkImpl>, Spi) {
-        let (bus, spi) = self.bus.deactivate();
-        (InactiveW5500::new(bus, self.network), spi)
-    }
-}
-
-impl<Spi: FullDuplex<u8>, NetworkImpl: Network> W5500<ActiveThreeWire<Spi>, NetworkImpl> {
-    pub fn deactivate(self) -> (InactiveW5500<ThreeWire, NetworkImpl>, Spi) {
-        let (bus, spi) = self.bus.deactivate();
-        (InactiveW5500::new(bus, self.network), spi)
-    }
-}