forked from renet/ENC424J600
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14 Commits
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cea9f2bf57 | |
 Sebastien Bourdeauducq
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1ce193b8aa | |
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Sebastien Bourdeauducq
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04ca484ded | |
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Sebastien Bourdeauducq
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01030f16a8 | |
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/target
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Cargo.lock
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@ -1,417 +0,0 @@
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|
||||
name = "version_check"
|
||||
version = "0.9.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
|
||||
|
||||
[[package]]
|
||||
name = "void"
|
||||
version = "1.0.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
|
||||
|
||||
[[package]]
|
||||
name = "volatile-register"
|
||||
version = "0.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0d67cb4616d99b940db1d6bd28844ff97108b498a6ca850e5b6191a532063286"
|
||||
dependencies = [
|
||||
"vcell",
|
||||
]
|
||||
|
|
@ -3,7 +3,7 @@ categories = ["embedded", "no-std"]
|
|||
name = "enc424j600"
|
||||
description = "Embbeded Rust Ethernet driver for ENC424J600 Ethernet controller with SPI interface, compatible with STM32F4xx"
|
||||
authors = ["Harry Ho <hh@m-labs.hk>"]
|
||||
version = "0.1.0"
|
||||
version = "0.2.0"
|
||||
keywords = ["ethernet", "eth", "enc424j600", "stm32", "stm32f4xx"]
|
||||
repository = "https://git.m-labs.hk/M-Labs/ENC424J600"
|
||||
edition = "2018"
|
||||
|
|
@ -13,7 +13,7 @@ license = "BSD-2-Clause"
|
|||
volatile-register = "0.2"
|
||||
aligned = "0.3"
|
||||
embedded-hal = "0.2"
|
||||
smoltcp = { version = "0.6.0", default-features = false, features = ["proto-ipv4", "proto-ipv6", "socket-icmp", "socket-udp", "socket-tcp", "log", "verbose", "ethernet"], optional = true }
|
||||
smoltcp = { version = "0.7.0", default-features = false, features = ["proto-ipv4", "proto-ipv6", "socket-icmp", "socket-udp", "socket-tcp", "log", "verbose", "ethernet"], optional = true }
|
||||
# Optional dependencies for building examples
|
||||
stm32f4xx-hal = { version = "0.8", optional = true }
|
||||
cortex-m = { version = "0.5", optional = true }
|
||||
|
|
@ -21,6 +21,9 @@ cortex-m-rt = { version = "0.6", optional = true }
|
|||
cortex-m-rtic = { version = "0.5.3", optional = true }
|
||||
panic-itm = { version = "0.4", optional = true }
|
||||
log = { version = "0.4", optional = true }
|
||||
# Optional dependencies for using NAL with somltcp and cortex_m
|
||||
heapless = { version = "0.5.6", optional = true }
|
||||
embedded-nal = { version = "0.1.0", optional = true }
|
||||
|
||||
[features]
|
||||
smoltcp-phy = ["smoltcp"]
|
||||
|
|
@ -31,6 +34,7 @@ smoltcp-phy-all = [
|
|||
# Example-based features
|
||||
tx_stm32f407 = ["stm32f4xx-hal/stm32f407", "cortex-m", "cortex-m-rtic", "panic-itm", "log"]
|
||||
tcp_stm32f407 = ["stm32f4xx-hal/stm32f407", "cortex-m", "cortex-m-rt", "cortex-m-rtic", "smoltcp-phy-all", "smoltcp/log", "panic-itm", "log"]
|
||||
nal = [ "smoltcp-phy", "heapless", "embedded-nal", "cortex-m", "cortex-m-rtic" ]
|
||||
default = []
|
||||
|
||||
[[example]]
|
||||
|
|
|
|||
|
|
@ -0,0 +1,33 @@
|
|||
use embedded_hal::blocking::delay::{DelayMs, DelayUs};
|
||||
|
||||
pub struct AsmDelay {
|
||||
frequency_us: u32,
|
||||
frequency_ms: u32,
|
||||
}
|
||||
|
||||
impl AsmDelay {
|
||||
pub fn new(freq: u32) -> AsmDelay {
|
||||
AsmDelay {
|
||||
frequency_us: (freq / 1_000_000),
|
||||
frequency_ms: (freq / 1_000),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<U> DelayUs<U> for AsmDelay
|
||||
where
|
||||
U: Into<u32>,
|
||||
{
|
||||
fn delay_us(&mut self, us: U) {
|
||||
cortex_m::asm::delay(self.frequency_us * us.into())
|
||||
}
|
||||
}
|
||||
|
||||
impl<U> DelayMs<U> for AsmDelay
|
||||
where
|
||||
U: Into<u32>,
|
||||
{
|
||||
fn delay_ms(&mut self, ms: U) {
|
||||
cortex_m::asm::delay(self.frequency_ms * ms.into())
|
||||
}
|
||||
}
|
||||
|
|
@ -28,6 +28,9 @@ use smoltcp::socket::{SocketSet, TcpSocket, TcpSocketBuffer};
|
|||
use core::str;
|
||||
use core::fmt::Write;
|
||||
|
||||
mod delay;
|
||||
use delay::AsmDelay;
|
||||
|
||||
/// Timer
|
||||
use core::cell::RefCell;
|
||||
use cortex_m::interrupt::Mutex;
|
||||
|
|
@ -80,7 +83,9 @@ use stm32f4xx_hal::{
|
|||
};
|
||||
type BoosterSpiEth = enc424j600::SpiEth<
|
||||
Spi<SPI1, (PA5<Alternate<AF5>>, PA6<Alternate<AF5>>, PA7<Alternate<AF5>>)>,
|
||||
PA4<Output<PushPull>>>;
|
||||
PA4<Output<PushPull>>,
|
||||
AsmDelay
|
||||
>;
|
||||
|
||||
pub struct NetStorage {
|
||||
ip_addrs: [IpCidr; 1],
|
||||
|
|
@ -99,8 +104,6 @@ static mut NET_STORE: NetStorage = NetStorage {
|
|||
const APP: () = {
|
||||
struct Resources {
|
||||
eth_iface: EthernetInterface<
|
||||
'static,
|
||||
'static,
|
||||
'static,
|
||||
smoltcp_phy::SmoltcpDevice<BoosterSpiEth>>,
|
||||
itm: ITM
|
||||
|
|
@ -122,7 +125,8 @@ const APP: () = {
|
|||
.pclk1(42.mhz())
|
||||
.require_pll48clk()
|
||||
.freeze();
|
||||
let mut delay = Delay::new(c.core.SYST, clocks);
|
||||
let asm_delay = AsmDelay::new(clocks.sysclk().0);
|
||||
let mut hal_delay = Delay::new(c.core.SYST, clocks);
|
||||
|
||||
// Init ITM
|
||||
let mut itm = c.core.ITM;
|
||||
|
|
@ -142,7 +146,7 @@ const APP: () = {
|
|||
// Map SPISEL: see Table 1, NIC100 Manual
|
||||
let mut spisel = gpioa.pa1.into_push_pull_output();
|
||||
spisel.set_high().unwrap();
|
||||
delay.delay_ms(1_u32);
|
||||
hal_delay.delay_ms(1_u32);
|
||||
spisel.set_low().unwrap();
|
||||
|
||||
// Create SPI1 for HAL
|
||||
|
|
@ -153,11 +157,11 @@ const APP: () = {
|
|||
enc424j600::spi::interfaces::SPI_MODE,
|
||||
Hertz(enc424j600::spi::interfaces::SPI_CLOCK_FREQ),
|
||||
clocks);
|
||||
enc424j600::SpiEth::new(spi_eth_port, spi1_nss)
|
||||
enc424j600::SpiEth::new(spi_eth_port, spi1_nss, asm_delay)
|
||||
};
|
||||
|
||||
// Init controller
|
||||
match spi_eth.init_dev(&mut delay) {
|
||||
match spi_eth.init_dev() {
|
||||
Ok(_) => {
|
||||
iprintln!(stim0, "Initializing Ethernet...")
|
||||
}
|
||||
|
|
@ -168,7 +172,7 @@ const APP: () = {
|
|||
|
||||
// Read MAC
|
||||
let mut eth_mac_addr: [u8; 6] = [0; 6];
|
||||
spi_eth.read_from_mac(&mut eth_mac_addr);
|
||||
spi_eth.read_from_mac(&mut eth_mac_addr).unwrap();
|
||||
for i in 0..6 {
|
||||
let byte = eth_mac_addr[i];
|
||||
match i {
|
||||
|
|
@ -180,8 +184,8 @@ const APP: () = {
|
|||
}
|
||||
|
||||
// Init Rx/Tx buffers
|
||||
spi_eth.init_rxbuf();
|
||||
spi_eth.init_txbuf();
|
||||
spi_eth.init_rxbuf().unwrap();
|
||||
spi_eth.init_txbuf().unwrap();
|
||||
iprintln!(stim0, "Ethernet controller initialized");
|
||||
|
||||
// Init smoltcp interface
|
||||
|
|
@ -205,7 +209,7 @@ const APP: () = {
|
|||
|
||||
// Setup SysTick after releasing SYST from Delay
|
||||
// Reference to stm32-eth:examples/ip.rs
|
||||
timer_setup(delay.free(), clocks);
|
||||
timer_setup(hal_delay.free(), clocks);
|
||||
iprintln!(stim0, "Timer initialized");
|
||||
|
||||
init::LateResources {
|
||||
|
|
|
|||
|
|
@ -20,6 +20,9 @@ use stm32f4xx_hal::{
|
|||
use enc424j600;
|
||||
use enc424j600::EthController;
|
||||
|
||||
mod delay;
|
||||
use delay::AsmDelay;
|
||||
|
||||
///
|
||||
use stm32f4xx_hal::{
|
||||
stm32::SPI1,
|
||||
|
|
@ -30,7 +33,8 @@ use stm32f4xx_hal::{
|
|||
};
|
||||
type BoosterSpiEth = enc424j600::SpiEth<
|
||||
Spi<SPI1, (PA5<Alternate<AF5>>, PA6<Alternate<AF5>>, PA7<Alternate<AF5>>)>,
|
||||
PA4<Output<PushPull>>>;
|
||||
PA4<Output<PushPull>>,
|
||||
AsmDelay>;
|
||||
|
||||
#[rtic::app(device = stm32f4xx_hal::stm32, peripherals = true, monotonic = rtic::cyccnt::CYCCNT)]
|
||||
const APP: () = {
|
||||
|
|
@ -54,6 +58,7 @@ const APP: () = {
|
|||
//.pclk2(64.mhz())
|
||||
.require_pll48clk()
|
||||
.freeze();
|
||||
let asm_delay = AsmDelay::new(clocks.sysclk().0);
|
||||
let mut delay = Delay::new(c.core.SYST, clocks);
|
||||
|
||||
// Init ITM
|
||||
|
|
@ -82,11 +87,11 @@ const APP: () = {
|
|||
enc424j600::spi::interfaces::SPI_MODE,
|
||||
Hertz(enc424j600::spi::interfaces::SPI_CLOCK_FREQ),
|
||||
clocks);
|
||||
enc424j600::SpiEth::new(spi_eth_port, spi1_nss)
|
||||
enc424j600::SpiEth::new(spi_eth_port, spi1_nss, asm_delay)
|
||||
};
|
||||
|
||||
// Init
|
||||
match spi_eth.init_dev(&mut delay) {
|
||||
match spi_eth.init_dev() {
|
||||
Ok(_) => {
|
||||
iprintln!(stim0, "Initializing Ethernet...")
|
||||
}
|
||||
|
|
@ -97,7 +102,7 @@ const APP: () = {
|
|||
|
||||
// Read MAC
|
||||
let mut eth_mac_addr: [u8; 6] = [0; 6];
|
||||
spi_eth.read_from_mac(&mut eth_mac_addr);
|
||||
spi_eth.read_from_mac(&mut eth_mac_addr).unwrap();
|
||||
for i in 0..6 {
|
||||
let byte = eth_mac_addr[i];
|
||||
match i {
|
||||
|
|
@ -109,8 +114,8 @@ const APP: () = {
|
|||
}
|
||||
|
||||
// Init Rx/Tx buffers
|
||||
spi_eth.init_rxbuf();
|
||||
spi_eth.init_txbuf();
|
||||
spi_eth.init_rxbuf().unwrap();
|
||||
spi_eth.init_txbuf().unwrap();
|
||||
iprintln!(stim0, "Ethernet controller initialized");
|
||||
|
||||
init::LateResources {
|
||||
|
|
@ -152,7 +157,7 @@ const APP: () = {
|
|||
_ => ()
|
||||
};
|
||||
}
|
||||
c.resources.spi_eth.send_raw_packet(ð_tx_packet);
|
||||
c.resources.spi_eth.send_raw_packet(ð_tx_packet).unwrap();
|
||||
iprintln!(stim0, "Packet sent");
|
||||
c.resources.delay.delay_ms(100_u32);
|
||||
}
|
||||
|
|
|
|||
26
src/lib.rs
26
src/lib.rs
|
|
@ -15,11 +15,14 @@ pub mod tx;
|
|||
#[cfg(feature="smoltcp")]
|
||||
pub mod smoltcp_phy;
|
||||
|
||||
#[cfg(all(feature="smoltcp", feature="nal"))]
|
||||
pub mod nal;
|
||||
|
||||
/// Max raw frame array size
|
||||
pub const RAW_FRAME_LENGTH_MAX: usize = 1518;
|
||||
|
||||
pub trait EthController {
|
||||
fn init_dev(&mut self, delay: &mut impl DelayUs<u16>) -> Result<(), EthControllerError>;
|
||||
fn init_dev(&mut self) -> Result<(), EthControllerError>;
|
||||
fn init_rxbuf(&mut self) -> Result<(), EthControllerError>;
|
||||
fn init_txbuf(&mut self) -> Result<(), EthControllerError>;
|
||||
fn receive_next(&mut self, is_poll: bool) -> Result<rx::RxPacket, EthControllerError>;
|
||||
|
|
@ -45,17 +48,19 @@ impl From<spi::SpiPortError> for EthControllerError {
|
|||
|
||||
/// Ethernet controller using SPI interface
|
||||
pub struct SpiEth<SPI: Transfer<u8>,
|
||||
NSS: OutputPin> {
|
||||
spi_port: spi::SpiPort<SPI, NSS>,
|
||||
NSS: OutputPin,
|
||||
Delay: DelayUs<u16>> {
|
||||
spi_port: spi::SpiPort<SPI, NSS, Delay>,
|
||||
rx_buf: rx::RxBuffer,
|
||||
tx_buf: tx::TxBuffer
|
||||
}
|
||||
|
||||
impl <SPI: Transfer<u8>,
|
||||
NSS: OutputPin> SpiEth<SPI, NSS> {
|
||||
pub fn new(spi: SPI, nss: NSS) -> Self {
|
||||
NSS: OutputPin,
|
||||
Delay: DelayUs<u16>> SpiEth<SPI, NSS, Delay> {
|
||||
pub fn new(spi: SPI, nss: NSS, delay: Delay) -> Self {
|
||||
SpiEth {
|
||||
spi_port: spi::SpiPort::new(spi, nss),
|
||||
spi_port: spi::SpiPort::new(spi, nss, delay),
|
||||
rx_buf: rx::RxBuffer::new(),
|
||||
tx_buf: tx::TxBuffer::new()
|
||||
}
|
||||
|
|
@ -63,8 +68,9 @@ impl <SPI: Transfer<u8>,
|
|||
}
|
||||
|
||||
impl <SPI: Transfer<u8>,
|
||||
NSS: OutputPin> EthController for SpiEth<SPI, NSS> {
|
||||
fn init_dev(&mut self, delay: &mut impl DelayUs<u16>) -> Result<(), EthControllerError> {
|
||||
NSS: OutputPin,
|
||||
Delay: DelayUs<u16>> EthController for SpiEth<SPI, NSS, Delay> {
|
||||
fn init_dev(&mut self) -> Result<(), EthControllerError> {
|
||||
// Write 0x1234 to EUDAST
|
||||
self.spi_port.write_reg_16b(spi::addrs::EUDAST, 0x1234)?;
|
||||
// Verify that EUDAST is 0x1234
|
||||
|
|
@ -81,14 +87,14 @@ impl <SPI: Transfer<u8>,
|
|||
let econ2 = self.spi_port.read_reg_8b(spi::addrs::ECON2)?;
|
||||
self.spi_port.write_reg_8b(spi::addrs::ECON2, 0x10 | (econ2 & 0b11101111))?;
|
||||
// Wait for 25us
|
||||
delay.delay_us(25_u16);
|
||||
self.spi_port.delay_us(25_u16);
|
||||
// Verify that EUDAST is 0x0000
|
||||
eudast = self.spi_port.read_reg_16b(spi::addrs::EUDAST)?;
|
||||
if eudast != 0x0000 {
|
||||
return Err(EthControllerError::GeneralError)
|
||||
}
|
||||
// Wait for 256us
|
||||
delay.delay_us(256_u16);
|
||||
self.spi_port.delay_us(256_u16);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,265 @@
|
|||
use core::cell::RefCell;
|
||||
use heapless::{consts, Vec};
|
||||
use embedded_nal as nal;
|
||||
use nal::nb;
|
||||
use smoltcp as net;
|
||||
use embedded_hal::{
|
||||
blocking::spi::Transfer,
|
||||
blocking::delay::DelayUs,
|
||||
digital::v2::OutputPin
|
||||
};
|
||||
use rtic::cyccnt::Instant;
|
||||
|
||||
|
||||
#[derive(Debug)]
|
||||
pub enum NetworkError {
|
||||
NoSocket,
|
||||
ConnectionFailure,
|
||||
ReadFailure,
|
||||
WriteFailure,
|
||||
Unsupported,
|
||||
}
|
||||
|
||||
pub type NetworkInterface<SPI, NSS, Delay> = net::iface::EthernetInterface<
|
||||
'static,
|
||||
crate::smoltcp_phy::SmoltcpDevice<
|
||||
crate::SpiEth<SPI, NSS, Delay>
|
||||
>,
|
||||
>;
|
||||
|
||||
pub struct NetworkStack<'a, SPI, NSS, Delay>
|
||||
where
|
||||
SPI: 'static + Transfer<u8>,
|
||||
NSS: 'static + OutputPin,
|
||||
Delay: 'static + DelayUs<u16>
|
||||
{
|
||||
network_interface: RefCell<NetworkInterface<SPI, NSS, Delay>>,
|
||||
sockets: RefCell<net::socket::SocketSet<'a>>,
|
||||
next_port: RefCell<u16>,
|
||||
unused_handles: RefCell<Vec<net::socket::SocketHandle, consts::U16>>,
|
||||
time_ms: RefCell<u32>,
|
||||
last_update_instant: RefCell<Option<Instant>>,
|
||||
}
|
||||
|
||||
impl<'a, SPI, NSS, Delay> NetworkStack<'a, SPI, NSS, Delay>
|
||||
where
|
||||
SPI: Transfer<u8>,
|
||||
NSS: OutputPin,
|
||||
Delay: DelayUs<u16>
|
||||
{
|
||||
pub fn new(interface: NetworkInterface<SPI, NSS, Delay>, sockets: net::socket::SocketSet<'a>) -> Self {
|
||||
let mut unused_handles: Vec<net::socket::SocketHandle, consts::U16> = Vec::new();
|
||||
for socket in sockets.iter() {
|
||||
unused_handles.push(socket.handle()).unwrap();
|
||||
}
|
||||
|
||||
NetworkStack {
|
||||
network_interface: RefCell::new(interface),
|
||||
sockets: RefCell::new(sockets),
|
||||
next_port: RefCell::new(49152),
|
||||
unused_handles: RefCell::new(unused_handles),
|
||||
time_ms: RefCell::new(0),
|
||||
last_update_instant: RefCell::new(None),
|
||||
}
|
||||
}
|
||||
|
||||
// Include auto_time_update to allow Instant::now() to not be called
|
||||
// Instant::now() is not safe to call in `init()` context
|
||||
pub fn update(&self, auto_time_update: bool) -> bool {
|
||||
if auto_time_update {
|
||||
// Check if it is the first time the stack has updated the time itself
|
||||
let now = match *self.last_update_instant.borrow() {
|
||||
// If it is the first time, do not advance time
|
||||
// Simply store the current instant to initiate time updating
|
||||
None => Instant::now(),
|
||||
|
||||
// If it was updated before, advance time and update last_update_instant
|
||||
Some(instant) => {
|
||||
// Calculate elapsed time
|
||||
let now = Instant::now();
|
||||
let duration = now.duration_since(instant);
|
||||
// Adjust duration into ms (note: decimal point truncated)
|
||||
self.advance_time(duration.as_cycles() / 168_000);
|
||||
now
|
||||
}
|
||||
};
|
||||
|
||||
self.last_update_instant.replace(Some(now));
|
||||
}
|
||||
|
||||
match self.network_interface.borrow_mut().poll(
|
||||
&mut self.sockets.borrow_mut(),
|
||||
net::time::Instant::from_millis(*self.time_ms.borrow() as i64),
|
||||
) {
|
||||
Ok(changed) => changed == false,
|
||||
Err(_e) => {
|
||||
true
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn advance_time(&self, duration: u32) {
|
||||
*self.time_ms.borrow_mut() += duration;
|
||||
}
|
||||
|
||||
fn get_ephemeral_port(&self) -> u16 {
|
||||
// Get the next ephemeral port
|
||||
let current_port = self.next_port.borrow().clone();
|
||||
|
||||
let (next, wrap) = self.next_port.borrow().overflowing_add(1);
|
||||
*self.next_port.borrow_mut() = if wrap { 49152 } else { next };
|
||||
|
||||
return current_port;
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a, SPI, NSS, Delay> nal::TcpStack for NetworkStack<'a, SPI, NSS, Delay>
|
||||
where
|
||||
SPI: Transfer<u8>,
|
||||
NSS: OutputPin,
|
||||
Delay: DelayUs<u16>
|
||||
{
|
||||
type TcpSocket = net::socket::SocketHandle;
|
||||
type Error = NetworkError;
|
||||
|
||||
fn open(&self, _mode: nal::Mode) -> Result<Self::TcpSocket, Self::Error> {
|
||||
match self.unused_handles.borrow_mut().pop() {
|
||||
Some(handle) => {
|
||||
// Abort any active connections on the handle.
|
||||
let mut sockets = self.sockets.borrow_mut();
|
||||
let internal_socket: &mut net::socket::TcpSocket = &mut *sockets.get(handle);
|
||||
internal_socket.abort();
|
||||
|
||||
Ok(handle)
|
||||
}
|
||||
None => Err(NetworkError::NoSocket),
|
||||
}
|
||||
}
|
||||
|
||||
// Ideally connect is only to be performed in `init()` of `main.rs`
|
||||
// Calling `Instant::now()` of `rtic::cyccnt` would face correctness issue during `init()`
|
||||
fn connect(
|
||||
&self,
|
||||
socket: Self::TcpSocket,
|
||||
remote: nal::SocketAddr,
|
||||
) -> Result<Self::TcpSocket, Self::Error> {
|
||||
let address = {
|
||||
let mut sockets = self.sockets.borrow_mut();
|
||||
let internal_socket: &mut net::socket::TcpSocket = &mut *sockets.get(socket);
|
||||
|
||||
// If we're already in the process of connecting, ignore the request silently.
|
||||
if internal_socket.is_open() {
|
||||
return Ok(socket);
|
||||
}
|
||||
|
||||
match remote.ip() {
|
||||
nal::IpAddr::V4(addr) => {
|
||||
let octets = addr.octets();
|
||||
let address =
|
||||
net::wire::Ipv4Address::new(octets[0], octets[1], octets[2], octets[3]);
|
||||
internal_socket
|
||||
.connect((address, remote.port()), self.get_ephemeral_port())
|
||||
.map_err(|_| NetworkError::ConnectionFailure)?;
|
||||
address
|
||||
}
|
||||
nal::IpAddr::V6(_) => {
|
||||
// Match W5500 behavior: Reject the use of IPV6
|
||||
return Err(NetworkError::Unsupported);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
// Match W5500 behavior: Poll until connected
|
||||
loop {
|
||||
match self.is_connected(&socket) {
|
||||
Ok(true) => break,
|
||||
_ => {
|
||||
let mut sockets = self.sockets.borrow_mut();
|
||||
let internal_socket: &mut net::socket::TcpSocket = &mut *sockets.get(socket);
|
||||
// If the connect got ACK->RST, it will end up in Closed TCP state
|
||||
// Perform reconnection in this case
|
||||
// In all other scenario, simply wait for TCP connection to be established
|
||||
if internal_socket.state() == net::socket::TcpState::Closed {
|
||||
internal_socket.close();
|
||||
internal_socket
|
||||
.connect((address, remote.port()), self.get_ephemeral_port())
|
||||
.map_err(|_| NetworkError::ConnectionFailure)?;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Avoid using Instant::now() and Advance time manually
|
||||
self.update(false);
|
||||
|
||||
// Delay for 1 ms, minimum time unit of smoltcp
|
||||
// TODO: Allow clock configuration, if supported in main
|
||||
cortex_m::asm::delay(168_000_000 / 1_000);
|
||||
{
|
||||
self.advance_time(1);
|
||||
}
|
||||
}
|
||||
|
||||
Ok(socket)
|
||||
}
|
||||
|
||||
fn is_connected(&self, socket: &Self::TcpSocket) -> Result<bool, Self::Error> {
|
||||
let mut sockets = self.sockets.borrow_mut();
|
||||
let socket: &mut net::socket::TcpSocket = &mut *sockets.get(*socket);
|
||||
|
||||
Ok(socket.may_send() && socket.may_recv())
|
||||
}
|
||||
|
||||
fn write(&self, socket: &mut Self::TcpSocket, buffer: &[u8]) -> nb::Result<usize, Self::Error> {
|
||||
let mut non_queued_bytes = &buffer[..];
|
||||
while non_queued_bytes.len() != 0 {
|
||||
let result = {
|
||||
let mut sockets = self.sockets.borrow_mut();
|
||||
let socket: &mut net::socket::TcpSocket = &mut *sockets.get(*socket);
|
||||
let result = socket.send_slice(non_queued_bytes);
|
||||
result
|
||||
};
|
||||
|
||||
match result {
|
||||
Ok(num_bytes) => {
|
||||
// In case the buffer is filled up, push bytes into ethernet driver
|
||||
if num_bytes != non_queued_bytes.len() {
|
||||
self.update(true);
|
||||
}
|
||||
|
||||
// Process the unwritten bytes again, if any
|
||||
non_queued_bytes = &non_queued_bytes[num_bytes..]
|
||||
}
|
||||
Err(_) => return Err(nb::Error::Other(NetworkError::WriteFailure)),
|
||||
}
|
||||
}
|
||||
|
||||
Ok(buffer.len())
|
||||
}
|
||||
|
||||
fn read(
|
||||
&self,
|
||||
socket: &mut Self::TcpSocket,
|
||||
buffer: &mut [u8],
|
||||
) -> nb::Result<usize, Self::Error> {
|
||||
// Enqueue received bytes into the TCP socket buffer
|
||||
self.update(true);
|
||||
|
||||
let mut sockets = self.sockets.borrow_mut();
|
||||
let socket: &mut net::socket::TcpSocket = &mut *sockets.get(*socket);
|
||||
|
||||
let result = socket.recv_slice(buffer);
|
||||
match result {
|
||||
Ok(num_bytes) => Ok(num_bytes),
|
||||
Err(_) => Err(nb::Error::Other(NetworkError::ReadFailure)),
|
||||
}
|
||||
}
|
||||
|
||||
fn close(&self, socket: Self::TcpSocket) -> Result<(), Self::Error> {
|
||||
let mut sockets = self.sockets.borrow_mut();
|
||||
let internal_socket: &mut net::socket::TcpSocket = &mut *sockets.get(socket);
|
||||
internal_socket.close();
|
||||
|
||||
self.unused_handles.borrow_mut().push(socket).unwrap();
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
26
src/spi.rs
26
src/spi.rs
|
|
@ -1,5 +1,5 @@
|
|||
use embedded_hal::{
|
||||
blocking::spi::Transfer,
|
||||
blocking::{spi::Transfer, delay::DelayUs},
|
||||
digital::v2::OutputPin,
|
||||
};
|
||||
|
||||
|
|
@ -52,9 +52,11 @@ pub mod addrs {
|
|||
/// Struct for SPI I/O interface on ENC424J600
|
||||
/// Note: stm32f4xx_hal::spi's pins include: SCK, MISO, MOSI
|
||||
pub struct SpiPort<SPI: Transfer<u8>,
|
||||
NSS: OutputPin> {
|
||||
NSS: OutputPin,
|
||||
Delay: DelayUs<u16>> {
|
||||
spi: SPI,
|
||||
nss: NSS,
|
||||
delay: Delay,
|
||||
}
|
||||
|
||||
pub enum SpiPortError {
|
||||
|
|
@ -63,14 +65,16 @@ pub enum SpiPortError {
|
|||
|
||||
#[allow(unused_must_use)]
|
||||
impl <SPI: Transfer<u8>,
|
||||
NSS: OutputPin> SpiPort<SPI, NSS> {
|
||||
NSS: OutputPin,
|
||||
Delay: DelayUs<u16>> SpiPort<SPI, NSS, Delay> {
|
||||
// TODO: return as Result()
|
||||
pub fn new(spi: SPI, mut nss: NSS) -> Self {
|
||||
pub fn new(spi: SPI, mut nss: NSS, delay: Delay) -> Self {
|
||||
nss.set_high();
|
||||
|
||||
SpiPort {
|
||||
spi,
|
||||
nss
|
||||
nss,
|
||||
delay
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -115,6 +119,10 @@ impl <SPI: Transfer<u8>,
|
|||
Ok(())
|
||||
}
|
||||
|
||||
pub fn delay_us(&mut self, duration: u16) {
|
||||
self.delay.delay_us(duration)
|
||||
}
|
||||
|
||||
// TODO: Generalise transfer functions
|
||||
// TODO: (Make data read/write as reference to array)
|
||||
// Currently requires 1-byte addr, read/write data is only 1-byte
|
||||
|
|
@ -131,17 +139,17 @@ impl <SPI: Transfer<u8>,
|
|||
match self.spi.transfer(&mut buf) {
|
||||
Ok(_) => {
|
||||
// Disable chip select
|
||||
cortex_m::asm::delay(10_u32);
|
||||
self.delay_us(1);
|
||||
self.nss.set_high();
|
||||
cortex_m::asm::delay(4_u32);
|
||||
self.delay_us(1);
|
||||
Ok(buf[2])
|
||||
},
|
||||
// TODO: Maybe too naive?
|
||||
Err(_) => {
|
||||
// Disable chip select
|
||||
cortex_m::asm::delay(10_u32);
|
||||
self.delay_us(1);
|
||||
self.nss.set_high();
|
||||
cortex_m::asm::delay(4_u32);
|
||||
self.delay_us(1);
|
||||
Err(SpiPortError::TransferError)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue