tuxmain/w5100-rs
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Added bus model and InactiveW5500 state

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This commit is contained in:
Jonah Dahlquist 2019-08-06 21:47:30 -05:00 • committed by Jonah Dahlquist
commit a43f86d744
7 changed files with 130 additions and 40 deletions
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33
src/bus/four_wire.rs
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@ -1,15 +1,13 @@
use embedded_hal::digital::v2::OutputPin;
use embedded_hal::spi::FullDuplex;
use crate::bus::Bus;
use crate::bus::{ActiveBus, Bus};
pub struct FourWire<ChipSelect: OutputPin> {
cs: ChipSelect
cs: ChipSelect,
}
impl<ChipSelect: OutputPin>
FourWire<ChipSelect>
{
impl<ChipSelect: OutputPin> FourWire<ChipSelect> {
pub fn new(cs: ChipSelect) -> Self {
Self { cs }
}
@ -18,12 +16,22 @@ impl<ChipSelect: OutputPin>
}
}
impl<Spi: FullDuplex<u8>, ChipSelect: OutputPin> Bus<Spi>
for FourWire<ChipSelect>
{
impl<ChipSelect: OutputPin> Bus for FourWire<ChipSelect> {}
impl<ChipSelect: OutputPin> FourWire<ChipSelect> {
pub fn activate<Spi: FullDuplex<u8>>(self, spi: Spi) -> ActiveFourWire<Spi, ChipSelect> {
ActiveFourWire { cs: self.cs, spi }
}
}
pub struct ActiveFourWire<Spi: FullDuplex<u8>, ChipSelect: OutputPin> {
cs: ChipSelect,
spi: Spi,
}
impl<Spi: FullDuplex<u8>, ChipSelect: OutputPin> ActiveBus for ActiveFourWire<Spi, ChipSelect> {
type Error = FourWireError<Spi::Error, ChipSelect::Error>;
fn transfer_frame<'a, 'b>(
spi: &'b mut Spi,
fn transfer_frame<'a>(
address_phase: [u8; 2],
control_phase: u8,
data_phase: &'a mut [u8],
@ -32,6 +40,11 @@ impl<Spi: FullDuplex<u8>, ChipSelect: OutputPin> Bus<Spi>
Ok(data_phase)
}
}
impl<Spi: FullDuplex<u8>, ChipSelect: OutputPin> ActiveFourWire<Spi, ChipSelect> {
pub fn deactivate(self) -> (FourWire<ChipSelect>, Spi) {
(FourWire::new(self.cs), self.spi)
}
}
pub enum FourWireError<SpiError, ChipSelectError> {
SpiError(SpiError),