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This commit is contained in:
kalkyl
commit
72b0379125
4
.gitignore
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.gitignore
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*.iml
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||||||
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**/target
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||||||
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**/*.rs.bk
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||||||
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Cargo.lock
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||||||
5
.vscode/settings.json
vendored
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5
.vscode/settings.json
vendored
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|||||||
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{
|
||||||
|
"rust-analyzer.linkedProjects": [
|
||||||
|
".\\examples\\Cargo.toml"
|
||||||
|
]
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||||||
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}
|
||||||
26
Cargo.toml
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Cargo.toml
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|||||||
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[package]
|
||||||
|
name = "embassy-net-w5500"
|
||||||
|
version = "0.1.0"
|
||||||
|
description = "embassy-net driver for the W5500 ethernet chip"
|
||||||
|
keywords = ["embedded", "w5500", "embassy-net", "embedded-hal-async", "ethernet", "async"]
|
||||||
|
categories = ["embedded", "hardware-support", "no-std", "network-programming", "async"]
|
||||||
|
license = "MIT OR Apache-2.0"
|
||||||
|
edition = "2021"
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
embedded-hal = { version = "1.0.0-alpha.10" }
|
||||||
|
embedded-hal-async = { version = "=0.2.0-alpha.1" }
|
||||||
|
embassy-net-driver-channel = { version = "0.1.0" }
|
||||||
|
embassy-time = { version = "0.1.0" }
|
||||||
|
embassy-futures = { version = "0.1.0" }
|
||||||
|
defmt = { version = "0.3", optional = true }
|
||||||
|
|
||||||
|
[patch.crates-io]
|
||||||
|
embassy-executor = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
embassy-time = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
embassy-futures = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
embassy-sync = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
embassy-rp = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
embassy-net = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
embassy-net-driver = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
embassy-net-driver-channel = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
201
LICENSE-APACHE
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201
LICENSE-APACHE
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|||||||
|
Apache License
|
||||||
|
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|
||||||
|
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|
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APPENDIX: How to apply the Apache License to your work.
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Copyright 2019-2022 Embassy project contributors
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LICENSE-MIT
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LICENSE-MIT
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Copyright (c) 2019-2022 Embassy project contributors
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Permission is hereby granted, free of charge, to any
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DEALINGS IN THE SOFTWARE.
|
||||||
7
README.md
Normal file
7
README.md
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|
|||||||
|
# WIZnet W5500 `embassy-net` integration
|
||||||
|
|
||||||
|
[`embassy-net`](https://crates.io/crates/embassy-net) integration for the WIZnet W5500 SPI ethernet chip, operating in MACRAW mode.
|
||||||
|
|
||||||
|
Supports any SPI driver implementing [`embedded-hal-async`](https://crates.io/crates/embedded-hal-async)
|
||||||
|
|
||||||
|
See [`examples`](https://github.com/kalkyl/embassy-net-w5500/tree/main/examples) directory for usage examples with the rp2040 [`WIZnet W5500-EVB-Pico`](https://www.wiznet.io/product-item/w5500-evb-pico/) module.
|
||||||
8
examples/.cargo/config.toml
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8
examples/.cargo/config.toml
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|
|||||||
|
[target.'cfg(all(target_arch = "arm", target_os = "none"))']
|
||||||
|
runner = "probe-rs-cli run --chip RP2040"
|
||||||
|
|
||||||
|
[build]
|
||||||
|
target = "thumbv6m-none-eabi"
|
||||||
|
|
||||||
|
[env]
|
||||||
|
DEFMT_LOG = "info"
|
||||||
70
examples/Cargo.toml
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70
examples/Cargo.toml
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|
|||||||
|
[package]
|
||||||
|
name = "embassy-net-w5500-examples"
|
||||||
|
version = "0.1.0"
|
||||||
|
edition = "2021"
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
embassy-executor = { version = "0.1.0", features = ["defmt", "integrated-timers", "executor-thread", "arch-cortex-m"] }
|
||||||
|
embassy-time = { version = "0.1.0", features = ["defmt", "defmt-timestamp-uptime"] }
|
||||||
|
embassy-rp = { version = "0.1.0", features = ["defmt", "unstable-traits", "nightly", "unstable-pac", "time-driver"] }
|
||||||
|
embassy-net = { version = "0.1.0", features = ["defmt", "tcp", "udp", "dhcpv4", "medium-ethernet", "unstable-traits", "nightly"] }
|
||||||
|
embassy-sync = { version = "0.1.0" }
|
||||||
|
embassy-futures = { version = "0.1.0" }
|
||||||
|
embassy-net-driver = { version = "0.1.0" }
|
||||||
|
embassy-net-driver-channel = { version = "0.1.0" }
|
||||||
|
atomic-polyfill = "0.1.5"
|
||||||
|
static_cell = "1.0"
|
||||||
|
|
||||||
|
defmt = "=0.3.2"
|
||||||
|
defmt-rtt = "0.3"
|
||||||
|
panic-probe = { version = "0.3", features = ["print-defmt"] }
|
||||||
|
cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
|
||||||
|
cortex-m-rt = "0.7.0"
|
||||||
|
|
||||||
|
embedded-io = { version = "0.4.0", features = ["async", "defmt"] }
|
||||||
|
heapless = "0.7.15"
|
||||||
|
embedded-hal = { version = "1.0.0-alpha.10" }
|
||||||
|
embedded-hal-async = { version = "=0.2.0-alpha.1" }
|
||||||
|
rand = { version = "0.8.5", default-features = false }
|
||||||
|
|
||||||
|
embassy-net-w5500 = { path = "../" }
|
||||||
|
|
||||||
|
[patch.crates-io]
|
||||||
|
embassy-executor = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
embassy-time = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
embassy-futures = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
embassy-sync = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
embassy-rp = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
embassy-net = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
embassy-net-driver = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
embassy-net-driver-channel = { git = "https://github.com/embassy-rs/embassy", rev = "03d6363d5af5dcaf21b52734994a466ca593d2b6" }
|
||||||
|
|
||||||
|
[profile.dev]
|
||||||
|
debug = 2
|
||||||
|
debug-assertions = true
|
||||||
|
opt-level = 1
|
||||||
|
overflow-checks = true
|
||||||
|
|
||||||
|
[profile.release]
|
||||||
|
codegen-units = 1
|
||||||
|
debug = 1
|
||||||
|
debug-assertions = false
|
||||||
|
incremental = false
|
||||||
|
lto = 'fat'
|
||||||
|
opt-level = 'z'
|
||||||
|
overflow-checks = false
|
||||||
|
|
||||||
|
# do not optimize proc-macro crates = faster builds from scratch
|
||||||
|
[profile.dev.build-override]
|
||||||
|
codegen-units = 8
|
||||||
|
debug = false
|
||||||
|
debug-assertions = false
|
||||||
|
opt-level = 0
|
||||||
|
overflow-checks = false
|
||||||
|
|
||||||
|
[profile.release.build-override]
|
||||||
|
codegen-units = 8
|
||||||
|
debug = false
|
||||||
|
debug-assertions = false
|
||||||
|
opt-level = 0
|
||||||
|
overflow-checks = false
|
||||||
33
examples/README.md
Normal file
33
examples/README.md
Normal file
@ -0,0 +1,33 @@
|
|||||||
|
# Examples for the rp2040 `WIZnet W5500-EVB-Pico` board
|
||||||
|
|
||||||
|
Examples are written for the [`WIZnet W5500-EVB-Pico`](https://www.wiznet.io/product-item/w5500-evb-pico/) board.
|
||||||
|
|
||||||
|
## Prerequisites
|
||||||
|
```bash
|
||||||
|
cargo install probe-rs-cli
|
||||||
|
```
|
||||||
|
|
||||||
|
## TCP server example
|
||||||
|
```bash
|
||||||
|
cargo run --bin tcp-server --release
|
||||||
|
```
|
||||||
|
This example implements a TCP echo server on port 1234 and using DHCP.
|
||||||
|
Send it some data, you should see it echoed back and printed in the console.
|
||||||
|
|
||||||
|
## Multi-socket example
|
||||||
|
```bash
|
||||||
|
cargo run --bin multisocket --release
|
||||||
|
```
|
||||||
|
This example shows how you can allow multiple simultaneous TCP connections, by having multiple sockets listening on the same port.
|
||||||
|
|
||||||
|
## TCP client example
|
||||||
|
```bash
|
||||||
|
cargo run --bin tcp-client --release
|
||||||
|
```
|
||||||
|
This example implements a TCP client that attempts to connect to a host on port 1234 and send it some data once per second.
|
||||||
|
|
||||||
|
## UDP server example
|
||||||
|
```bash
|
||||||
|
cargo run --bin udp --release
|
||||||
|
```
|
||||||
|
This example implements a UDP server listening on port 1234 and echoing back the data.
|
||||||
36
examples/build.rs
Normal file
36
examples/build.rs
Normal file
@ -0,0 +1,36 @@
|
|||||||
|
//! This build script copies the `memory.x` file from the crate root into
|
||||||
|
//! a directory where the linker can always find it at build time.
|
||||||
|
//! For many projects this is optional, as the linker always searches the
|
||||||
|
//! project root directory -- wherever `Cargo.toml` is. However, if you
|
||||||
|
//! are using a workspace or have a more complicated build setup, this
|
||||||
|
//! build script becomes required. Additionally, by requesting that
|
||||||
|
//! Cargo re-run the build script whenever `memory.x` is changed,
|
||||||
|
//! updating `memory.x` ensures a rebuild of the application with the
|
||||||
|
//! new memory settings.
|
||||||
|
|
||||||
|
use std::env;
|
||||||
|
use std::fs::File;
|
||||||
|
use std::io::Write;
|
||||||
|
use std::path::PathBuf;
|
||||||
|
|
||||||
|
fn main() {
|
||||||
|
// Put `memory.x` in our output directory and ensure it's
|
||||||
|
// on the linker search path.
|
||||||
|
let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
|
||||||
|
File::create(out.join("memory.x"))
|
||||||
|
.unwrap()
|
||||||
|
.write_all(include_bytes!("memory.x"))
|
||||||
|
.unwrap();
|
||||||
|
println!("cargo:rustc-link-search={}", out.display());
|
||||||
|
|
||||||
|
// By default, Cargo will re-run a build script whenever
|
||||||
|
// any file in the project changes. By specifying `memory.x`
|
||||||
|
// here, we ensure the build script is only re-run when
|
||||||
|
// `memory.x` is changed.
|
||||||
|
println!("cargo:rerun-if-changed=memory.x");
|
||||||
|
|
||||||
|
println!("cargo:rustc-link-arg-bins=--nmagic");
|
||||||
|
println!("cargo:rustc-link-arg-bins=-Tlink.x");
|
||||||
|
println!("cargo:rustc-link-arg-bins=-Tlink-rp.x");
|
||||||
|
println!("cargo:rustc-link-arg-bins=-Tdefmt.x");
|
||||||
|
}
|
||||||
5
examples/memory.x
Normal file
5
examples/memory.x
Normal file
@ -0,0 +1,5 @@
|
|||||||
|
MEMORY {
|
||||||
|
BOOT2 : ORIGIN = 0x10000000, LENGTH = 0x100
|
||||||
|
FLASH : ORIGIN = 0x10000100, LENGTH = 1024K - 0x100
|
||||||
|
RAM : ORIGIN = 0x20000000, LENGTH = 256K
|
||||||
|
}
|
||||||
148
examples/src/bin/multisocket.rs
Normal file
148
examples/src/bin/multisocket.rs
Normal file
@ -0,0 +1,148 @@
|
|||||||
|
#![no_std]
|
||||||
|
#![no_main]
|
||||||
|
#![feature(type_alias_impl_trait)]
|
||||||
|
|
||||||
|
use defmt::*;
|
||||||
|
use embassy_executor::Spawner;
|
||||||
|
use embassy_futures::yield_now;
|
||||||
|
use embassy_net::{Stack, StackResources};
|
||||||
|
use embassy_net_w5500::*;
|
||||||
|
use embassy_rp::clocks::RoscRng;
|
||||||
|
use embassy_rp::gpio::{Input, Level, Output, Pull};
|
||||||
|
use embassy_rp::peripherals::{PIN_17, PIN_20, PIN_21, SPI0};
|
||||||
|
use embassy_rp::spi::{Async, Config as SpiConfig, Spi};
|
||||||
|
use embedded_hal_async::spi::ExclusiveDevice;
|
||||||
|
use embedded_io::asynch::Write;
|
||||||
|
use rand::RngCore;
|
||||||
|
use static_cell::StaticCell;
|
||||||
|
use {defmt_rtt as _, panic_probe as _};
|
||||||
|
|
||||||
|
macro_rules! singleton {
|
||||||
|
($val:expr) => {{
|
||||||
|
type T = impl Sized;
|
||||||
|
static STATIC_CELL: StaticCell<T> = StaticCell::new();
|
||||||
|
let (x,) = STATIC_CELL.init(($val,));
|
||||||
|
x
|
||||||
|
}};
|
||||||
|
}
|
||||||
|
|
||||||
|
#[embassy_executor::task]
|
||||||
|
async fn ethernet_task(
|
||||||
|
runner: Runner<
|
||||||
|
'static,
|
||||||
|
ExclusiveDevice<Spi<'static, SPI0, Async>, Output<'static, PIN_17>>,
|
||||||
|
Input<'static, PIN_21>,
|
||||||
|
Output<'static, PIN_20>,
|
||||||
|
>,
|
||||||
|
) -> ! {
|
||||||
|
runner.run().await
|
||||||
|
}
|
||||||
|
|
||||||
|
#[embassy_executor::task]
|
||||||
|
async fn net_task(stack: &'static Stack<Device<'static>>) -> ! {
|
||||||
|
stack.run().await
|
||||||
|
}
|
||||||
|
|
||||||
|
#[embassy_executor::main]
|
||||||
|
async fn main(spawner: Spawner) {
|
||||||
|
let p = embassy_rp::init(Default::default());
|
||||||
|
let mut rng = RoscRng;
|
||||||
|
|
||||||
|
let mut spi_cfg = SpiConfig::default();
|
||||||
|
spi_cfg.frequency = 50_000_000;
|
||||||
|
let (miso, mosi, clk) = (p.PIN_16, p.PIN_19, p.PIN_18);
|
||||||
|
let spi = Spi::new(p.SPI0, clk, mosi, miso, p.DMA_CH0, p.DMA_CH1, spi_cfg);
|
||||||
|
let cs = Output::new(p.PIN_17, Level::High);
|
||||||
|
let w5500_int = Input::new(p.PIN_21, Pull::Up);
|
||||||
|
let w5500_reset = Output::new(p.PIN_20, Level::High);
|
||||||
|
|
||||||
|
let mac_addr = [0x02, 0x00, 0x00, 0x00, 0x00, 0x00];
|
||||||
|
let state = singleton!(State::<8, 8>::new());
|
||||||
|
let (device, runner) = embassy_net_w5500::new(
|
||||||
|
mac_addr,
|
||||||
|
state,
|
||||||
|
ExclusiveDevice::new(spi, cs),
|
||||||
|
w5500_int,
|
||||||
|
w5500_reset,
|
||||||
|
)
|
||||||
|
.await;
|
||||||
|
unwrap!(spawner.spawn(ethernet_task(runner)));
|
||||||
|
|
||||||
|
// Generate random seed
|
||||||
|
let seed = rng.next_u64();
|
||||||
|
|
||||||
|
// Init network stack
|
||||||
|
let stack = &*singleton!(Stack::new(
|
||||||
|
device,
|
||||||
|
embassy_net::Config::Dhcp(Default::default()),
|
||||||
|
singleton!(StackResources::<3>::new()),
|
||||||
|
seed
|
||||||
|
));
|
||||||
|
|
||||||
|
// Launch network task
|
||||||
|
unwrap!(spawner.spawn(net_task(&stack)));
|
||||||
|
|
||||||
|
info!("Waiting for DHCP...");
|
||||||
|
let cfg = wait_for_config(stack).await;
|
||||||
|
let local_addr = cfg.address.address();
|
||||||
|
info!("IP address: {:?}", local_addr);
|
||||||
|
|
||||||
|
// Create two sockets listening to the same port, to handle simultaneous connections
|
||||||
|
unwrap!(spawner.spawn(listen_task(&stack, 0, 1234)));
|
||||||
|
unwrap!(spawner.spawn(listen_task(&stack, 1, 1234)));
|
||||||
|
}
|
||||||
|
|
||||||
|
#[embassy_executor::task(pool_size = 2)]
|
||||||
|
async fn listen_task(stack: &'static Stack<Device<'static>>, id: u8, port: u16) {
|
||||||
|
let mut rx_buffer = [0; 4096];
|
||||||
|
let mut tx_buffer = [0; 4096];
|
||||||
|
let mut buf = [0; 4096];
|
||||||
|
loop {
|
||||||
|
let mut socket = embassy_net::tcp::TcpSocket::new(stack, &mut rx_buffer, &mut tx_buffer);
|
||||||
|
socket.set_timeout(Some(embassy_net::SmolDuration::from_secs(10)));
|
||||||
|
|
||||||
|
info!("SOCKET {}: Listening on TCP:{}...", id, port);
|
||||||
|
if let Err(e) = socket.accept(port).await {
|
||||||
|
warn!("accept error: {:?}", e);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
info!(
|
||||||
|
"SOCKET {}: Received connection from {:?}",
|
||||||
|
id,
|
||||||
|
socket.remote_endpoint()
|
||||||
|
);
|
||||||
|
|
||||||
|
loop {
|
||||||
|
let n = match socket.read(&mut buf).await {
|
||||||
|
Ok(0) => {
|
||||||
|
warn!("read EOF");
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
Ok(n) => n,
|
||||||
|
Err(e) => {
|
||||||
|
warn!("SOCKET {}: {:?}", id, e);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
info!(
|
||||||
|
"SOCKET {}: rxd {}",
|
||||||
|
id,
|
||||||
|
core::str::from_utf8(&buf[..n]).unwrap()
|
||||||
|
);
|
||||||
|
|
||||||
|
if let Err(e) = socket.write_all(&buf[..n]).await {
|
||||||
|
warn!("write error: {:?}", e);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async fn wait_for_config(stack: &'static Stack<Device<'static>>) -> embassy_net::StaticConfig {
|
||||||
|
loop {
|
||||||
|
if let Some(config) = stack.config() {
|
||||||
|
return config.clone();
|
||||||
|
}
|
||||||
|
yield_now().await;
|
||||||
|
}
|
||||||
|
}
|
||||||
128
examples/src/bin/tcp-client.rs
Normal file
128
examples/src/bin/tcp-client.rs
Normal file
@ -0,0 +1,128 @@
|
|||||||
|
#![no_std]
|
||||||
|
#![no_main]
|
||||||
|
#![feature(type_alias_impl_trait)]
|
||||||
|
|
||||||
|
use core::str::FromStr;
|
||||||
|
use defmt::*;
|
||||||
|
use embassy_executor::Spawner;
|
||||||
|
use embassy_futures::yield_now;
|
||||||
|
use embassy_net::{Stack, StackResources};
|
||||||
|
use embassy_net_w5500::*;
|
||||||
|
use embassy_rp::clocks::RoscRng;
|
||||||
|
use embassy_rp::gpio::{Input, Level, Output, Pull};
|
||||||
|
use embassy_rp::peripherals::{PIN_17, PIN_20, PIN_21, SPI0};
|
||||||
|
use embassy_rp::spi::{Async, Config as SpiConfig, Spi};
|
||||||
|
use embassy_time::{Duration, Timer};
|
||||||
|
use embedded_hal_async::spi::ExclusiveDevice;
|
||||||
|
use embedded_io::asynch::Write;
|
||||||
|
use rand::RngCore;
|
||||||
|
use static_cell::StaticCell;
|
||||||
|
use {defmt_rtt as _, panic_probe as _};
|
||||||
|
|
||||||
|
macro_rules! singleton {
|
||||||
|
($val:expr) => {{
|
||||||
|
type T = impl Sized;
|
||||||
|
static STATIC_CELL: StaticCell<T> = StaticCell::new();
|
||||||
|
let (x,) = STATIC_CELL.init(($val,));
|
||||||
|
x
|
||||||
|
}};
|
||||||
|
}
|
||||||
|
|
||||||
|
#[embassy_executor::task]
|
||||||
|
async fn ethernet_task(
|
||||||
|
runner: Runner<
|
||||||
|
'static,
|
||||||
|
ExclusiveDevice<Spi<'static, SPI0, Async>, Output<'static, PIN_17>>,
|
||||||
|
Input<'static, PIN_21>,
|
||||||
|
Output<'static, PIN_20>,
|
||||||
|
>,
|
||||||
|
) -> ! {
|
||||||
|
runner.run().await
|
||||||
|
}
|
||||||
|
|
||||||
|
#[embassy_executor::task]
|
||||||
|
async fn net_task(stack: &'static Stack<Device<'static>>) -> ! {
|
||||||
|
stack.run().await
|
||||||
|
}
|
||||||
|
|
||||||
|
#[embassy_executor::main]
|
||||||
|
async fn main(spawner: Spawner) {
|
||||||
|
let p = embassy_rp::init(Default::default());
|
||||||
|
let mut rng = RoscRng;
|
||||||
|
let mut led = Output::new(p.PIN_25, Level::Low);
|
||||||
|
|
||||||
|
let mut spi_cfg = SpiConfig::default();
|
||||||
|
spi_cfg.frequency = 50_000_000;
|
||||||
|
let (miso, mosi, clk) = (p.PIN_16, p.PIN_19, p.PIN_18);
|
||||||
|
let spi = Spi::new(p.SPI0, clk, mosi, miso, p.DMA_CH0, p.DMA_CH1, spi_cfg);
|
||||||
|
let cs = Output::new(p.PIN_17, Level::High);
|
||||||
|
let w5500_int = Input::new(p.PIN_21, Pull::Up);
|
||||||
|
let w5500_reset = Output::new(p.PIN_20, Level::High);
|
||||||
|
|
||||||
|
let mac_addr = [0x02, 0x00, 0x00, 0x00, 0x00, 0x00];
|
||||||
|
let state = singleton!(State::<8, 8>::new());
|
||||||
|
let (device, runner) = embassy_net_w5500::new(
|
||||||
|
mac_addr,
|
||||||
|
state,
|
||||||
|
ExclusiveDevice::new(spi, cs),
|
||||||
|
w5500_int,
|
||||||
|
w5500_reset,
|
||||||
|
)
|
||||||
|
.await;
|
||||||
|
unwrap!(spawner.spawn(ethernet_task(runner)));
|
||||||
|
|
||||||
|
// Generate random seed
|
||||||
|
let seed = rng.next_u64();
|
||||||
|
|
||||||
|
// Init network stack
|
||||||
|
let stack = &*singleton!(Stack::new(
|
||||||
|
device,
|
||||||
|
embassy_net::Config::Dhcp(Default::default()),
|
||||||
|
singleton!(StackResources::<2>::new()),
|
||||||
|
seed
|
||||||
|
));
|
||||||
|
|
||||||
|
// Launch network task
|
||||||
|
unwrap!(spawner.spawn(net_task(&stack)));
|
||||||
|
|
||||||
|
info!("Waiting for DHCP...");
|
||||||
|
let cfg = wait_for_config(stack).await;
|
||||||
|
let local_addr = cfg.address.address();
|
||||||
|
info!("IP address: {:?}", local_addr);
|
||||||
|
|
||||||
|
let mut rx_buffer = [0; 4096];
|
||||||
|
let mut tx_buffer = [0; 4096];
|
||||||
|
loop {
|
||||||
|
let mut socket = embassy_net::tcp::TcpSocket::new(stack, &mut rx_buffer, &mut tx_buffer);
|
||||||
|
socket.set_timeout(Some(embassy_net::SmolDuration::from_secs(10)));
|
||||||
|
|
||||||
|
led.set_low();
|
||||||
|
info!("Connecting...");
|
||||||
|
let host_addr = embassy_net::Ipv4Address::from_str("192.168.1.110").unwrap();
|
||||||
|
if let Err(e) = socket.connect((host_addr, 1234)).await {
|
||||||
|
warn!("connect error: {:?}", e);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
info!("Connected to {:?}", socket.remote_endpoint());
|
||||||
|
led.set_high();
|
||||||
|
|
||||||
|
let msg = b"Hello world!\n";
|
||||||
|
loop {
|
||||||
|
if let Err(e) = socket.write_all(msg).await {
|
||||||
|
warn!("write error: {:?}", e);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
info!("txd: {}", core::str::from_utf8(msg).unwrap());
|
||||||
|
Timer::after(Duration::from_secs(1)).await;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async fn wait_for_config(stack: &'static Stack<Device<'static>>) -> embassy_net::StaticConfig {
|
||||||
|
loop {
|
||||||
|
if let Some(config) = stack.config() {
|
||||||
|
return config.clone();
|
||||||
|
}
|
||||||
|
yield_now().await;
|
||||||
|
}
|
||||||
|
}
|
||||||
136
examples/src/bin/tcp-server.rs
Normal file
136
examples/src/bin/tcp-server.rs
Normal file
@ -0,0 +1,136 @@
|
|||||||
|
#![no_std]
|
||||||
|
#![no_main]
|
||||||
|
#![feature(type_alias_impl_trait)]
|
||||||
|
|
||||||
|
use defmt::*;
|
||||||
|
use embassy_executor::Spawner;
|
||||||
|
use embassy_futures::yield_now;
|
||||||
|
use embassy_net::{Stack, StackResources};
|
||||||
|
use embassy_net_w5500::*;
|
||||||
|
use embassy_rp::clocks::RoscRng;
|
||||||
|
use embassy_rp::gpio::{Input, Level, Output, Pull};
|
||||||
|
use embassy_rp::peripherals::{PIN_17, PIN_20, PIN_21, SPI0};
|
||||||
|
use embassy_rp::spi::{Async, Config as SpiConfig, Spi};
|
||||||
|
use embedded_hal_async::spi::ExclusiveDevice;
|
||||||
|
use embedded_io::asynch::Write;
|
||||||
|
use rand::RngCore;
|
||||||
|
use static_cell::StaticCell;
|
||||||
|
use {defmt_rtt as _, panic_probe as _};
|
||||||
|
|
||||||
|
macro_rules! singleton {
|
||||||
|
($val:expr) => {{
|
||||||
|
type T = impl Sized;
|
||||||
|
static STATIC_CELL: StaticCell<T> = StaticCell::new();
|
||||||
|
let (x,) = STATIC_CELL.init(($val,));
|
||||||
|
x
|
||||||
|
}};
|
||||||
|
}
|
||||||
|
|
||||||
|
#[embassy_executor::task]
|
||||||
|
async fn ethernet_task(
|
||||||
|
runner: Runner<
|
||||||
|
'static,
|
||||||
|
ExclusiveDevice<Spi<'static, SPI0, Async>, Output<'static, PIN_17>>,
|
||||||
|
Input<'static, PIN_21>,
|
||||||
|
Output<'static, PIN_20>,
|
||||||
|
>,
|
||||||
|
) -> ! {
|
||||||
|
runner.run().await
|
||||||
|
}
|
||||||
|
|
||||||
|
#[embassy_executor::task]
|
||||||
|
async fn net_task(stack: &'static Stack<Device<'static>>) -> ! {
|
||||||
|
stack.run().await
|
||||||
|
}
|
||||||
|
|
||||||
|
#[embassy_executor::main]
|
||||||
|
async fn main(spawner: Spawner) {
|
||||||
|
let p = embassy_rp::init(Default::default());
|
||||||
|
let mut rng = RoscRng;
|
||||||
|
let mut led = Output::new(p.PIN_25, Level::Low);
|
||||||
|
|
||||||
|
let mut spi_cfg = SpiConfig::default();
|
||||||
|
spi_cfg.frequency = 50_000_000;
|
||||||
|
let (miso, mosi, clk) = (p.PIN_16, p.PIN_19, p.PIN_18);
|
||||||
|
let spi = Spi::new(p.SPI0, clk, mosi, miso, p.DMA_CH0, p.DMA_CH1, spi_cfg);
|
||||||
|
let cs = Output::new(p.PIN_17, Level::High);
|
||||||
|
let w5500_int = Input::new(p.PIN_21, Pull::Up);
|
||||||
|
let w5500_reset = Output::new(p.PIN_20, Level::High);
|
||||||
|
|
||||||
|
let mac_addr = [0x02, 0x00, 0x00, 0x00, 0x00, 0x00];
|
||||||
|
let state = singleton!(State::<8, 8>::new());
|
||||||
|
let (device, runner) = embassy_net_w5500::new(
|
||||||
|
mac_addr,
|
||||||
|
state,
|
||||||
|
ExclusiveDevice::new(spi, cs),
|
||||||
|
w5500_int,
|
||||||
|
w5500_reset,
|
||||||
|
)
|
||||||
|
.await;
|
||||||
|
unwrap!(spawner.spawn(ethernet_task(runner)));
|
||||||
|
|
||||||
|
// Generate random seed
|
||||||
|
let seed = rng.next_u64();
|
||||||
|
|
||||||
|
// Init network stack
|
||||||
|
let stack = &*singleton!(Stack::new(
|
||||||
|
device,
|
||||||
|
embassy_net::Config::Dhcp(Default::default()),
|
||||||
|
singleton!(StackResources::<2>::new()),
|
||||||
|
seed
|
||||||
|
));
|
||||||
|
|
||||||
|
// Launch network task
|
||||||
|
unwrap!(spawner.spawn(net_task(&stack)));
|
||||||
|
|
||||||
|
info!("Waiting for DHCP...");
|
||||||
|
let cfg = wait_for_config(stack).await;
|
||||||
|
let local_addr = cfg.address.address();
|
||||||
|
info!("IP address: {:?}", local_addr);
|
||||||
|
|
||||||
|
let mut rx_buffer = [0; 4096];
|
||||||
|
let mut tx_buffer = [0; 4096];
|
||||||
|
let mut buf = [0; 4096];
|
||||||
|
loop {
|
||||||
|
let mut socket = embassy_net::tcp::TcpSocket::new(stack, &mut rx_buffer, &mut tx_buffer);
|
||||||
|
socket.set_timeout(Some(embassy_net::SmolDuration::from_secs(10)));
|
||||||
|
|
||||||
|
led.set_low();
|
||||||
|
info!("Listening on TCP:1234...");
|
||||||
|
if let Err(e) = socket.accept(1234).await {
|
||||||
|
warn!("accept error: {:?}", e);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
info!("Received connection from {:?}", socket.remote_endpoint());
|
||||||
|
led.set_high();
|
||||||
|
|
||||||
|
loop {
|
||||||
|
let n = match socket.read(&mut buf).await {
|
||||||
|
Ok(0) => {
|
||||||
|
warn!("read EOF");
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
Ok(n) => n,
|
||||||
|
Err(e) => {
|
||||||
|
warn!("{:?}", e);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
info!("rxd {}", core::str::from_utf8(&buf[..n]).unwrap());
|
||||||
|
|
||||||
|
if let Err(e) = socket.write_all(&buf[..n]).await {
|
||||||
|
warn!("write error: {:?}", e);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async fn wait_for_config(stack: &'static Stack<Device<'static>>) -> embassy_net::StaticConfig {
|
||||||
|
loop {
|
||||||
|
if let Some(config) = stack.config() {
|
||||||
|
return config.clone();
|
||||||
|
}
|
||||||
|
yield_now().await;
|
||||||
|
}
|
||||||
|
}
|
||||||
123
examples/src/bin/udp.rs
Normal file
123
examples/src/bin/udp.rs
Normal file
@ -0,0 +1,123 @@
|
|||||||
|
#![no_std]
|
||||||
|
#![no_main]
|
||||||
|
#![feature(type_alias_impl_trait)]
|
||||||
|
|
||||||
|
use defmt::*;
|
||||||
|
use embassy_executor::Spawner;
|
||||||
|
use embassy_futures::yield_now;
|
||||||
|
use embassy_net::udp::UdpSocket;
|
||||||
|
use embassy_net::{PacketMetadata, Stack, StackResources};
|
||||||
|
use embassy_net_w5500::*;
|
||||||
|
use embassy_rp::clocks::RoscRng;
|
||||||
|
use embassy_rp::gpio::{Input, Level, Output, Pull};
|
||||||
|
use embassy_rp::peripherals::{PIN_17, PIN_20, PIN_21, SPI0};
|
||||||
|
use embassy_rp::spi::{Async, Config as SpiConfig, Spi};
|
||||||
|
use embedded_hal_async::spi::ExclusiveDevice;
|
||||||
|
use rand::RngCore;
|
||||||
|
use static_cell::StaticCell;
|
||||||
|
use {defmt_rtt as _, panic_probe as _};
|
||||||
|
|
||||||
|
macro_rules! singleton {
|
||||||
|
($val:expr) => {{
|
||||||
|
type T = impl Sized;
|
||||||
|
static STATIC_CELL: StaticCell<T> = StaticCell::new();
|
||||||
|
let (x,) = STATIC_CELL.init(($val,));
|
||||||
|
x
|
||||||
|
}};
|
||||||
|
}
|
||||||
|
|
||||||
|
#[embassy_executor::task]
|
||||||
|
async fn ethernet_task(
|
||||||
|
runner: Runner<
|
||||||
|
'static,
|
||||||
|
ExclusiveDevice<Spi<'static, SPI0, Async>, Output<'static, PIN_17>>,
|
||||||
|
Input<'static, PIN_21>,
|
||||||
|
Output<'static, PIN_20>,
|
||||||
|
>,
|
||||||
|
) -> ! {
|
||||||
|
runner.run().await
|
||||||
|
}
|
||||||
|
|
||||||
|
#[embassy_executor::task]
|
||||||
|
async fn net_task(stack: &'static Stack<Device<'static>>) -> ! {
|
||||||
|
stack.run().await
|
||||||
|
}
|
||||||
|
|
||||||
|
#[embassy_executor::main]
|
||||||
|
async fn main(spawner: Spawner) {
|
||||||
|
let p = embassy_rp::init(Default::default());
|
||||||
|
let mut rng = RoscRng;
|
||||||
|
|
||||||
|
let mut spi_cfg = SpiConfig::default();
|
||||||
|
spi_cfg.frequency = 50_000_000;
|
||||||
|
let (miso, mosi, clk) = (p.PIN_16, p.PIN_19, p.PIN_18);
|
||||||
|
let spi = Spi::new(p.SPI0, clk, mosi, miso, p.DMA_CH0, p.DMA_CH1, spi_cfg);
|
||||||
|
let cs = Output::new(p.PIN_17, Level::High);
|
||||||
|
let w5500_int = Input::new(p.PIN_21, Pull::Up);
|
||||||
|
let w5500_reset = Output::new(p.PIN_20, Level::High);
|
||||||
|
|
||||||
|
let mac_addr = [0x02, 0x00, 0x00, 0x00, 0x00, 0x00];
|
||||||
|
let state = singleton!(State::<8, 8>::new());
|
||||||
|
let (device, runner) = embassy_net_w5500::new(
|
||||||
|
mac_addr,
|
||||||
|
state,
|
||||||
|
ExclusiveDevice::new(spi, cs),
|
||||||
|
w5500_int,
|
||||||
|
w5500_reset,
|
||||||
|
)
|
||||||
|
.await;
|
||||||
|
unwrap!(spawner.spawn(ethernet_task(runner)));
|
||||||
|
|
||||||
|
// Generate random seed
|
||||||
|
let seed = rng.next_u64();
|
||||||
|
|
||||||
|
// Init network stack
|
||||||
|
let stack = &*singleton!(Stack::new(
|
||||||
|
device,
|
||||||
|
embassy_net::Config::Dhcp(Default::default()),
|
||||||
|
singleton!(StackResources::<2>::new()),
|
||||||
|
seed
|
||||||
|
));
|
||||||
|
|
||||||
|
// Launch network task
|
||||||
|
unwrap!(spawner.spawn(net_task(&stack)));
|
||||||
|
|
||||||
|
info!("Waiting for DHCP...");
|
||||||
|
let cfg = wait_for_config(stack).await;
|
||||||
|
let local_addr = cfg.address.address();
|
||||||
|
info!("IP address: {:?}", local_addr);
|
||||||
|
|
||||||
|
// Then we can use it!
|
||||||
|
let mut rx_buffer = [0; 4096];
|
||||||
|
let mut tx_buffer = [0; 4096];
|
||||||
|
let mut rx_meta = [PacketMetadata::EMPTY; 16];
|
||||||
|
let mut tx_meta = [PacketMetadata::EMPTY; 16];
|
||||||
|
let mut buf = [0; 4096];
|
||||||
|
loop {
|
||||||
|
let mut socket = UdpSocket::new(
|
||||||
|
stack,
|
||||||
|
&mut rx_meta,
|
||||||
|
&mut rx_buffer,
|
||||||
|
&mut tx_meta,
|
||||||
|
&mut tx_buffer,
|
||||||
|
);
|
||||||
|
socket.bind(1234).unwrap();
|
||||||
|
|
||||||
|
loop {
|
||||||
|
let (n, ep) = socket.recv_from(&mut buf).await.unwrap();
|
||||||
|
if let Ok(s) = core::str::from_utf8(&buf[..n]) {
|
||||||
|
info!("rxd from {}: {}", ep, s);
|
||||||
|
}
|
||||||
|
socket.send_to(&buf[..n], ep).await.unwrap();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async fn wait_for_config(stack: &'static Stack<Device<'static>>) -> embassy_net::StaticConfig {
|
||||||
|
loop {
|
||||||
|
if let Some(config) = stack.config() {
|
||||||
|
return config.clone();
|
||||||
|
}
|
||||||
|
yield_now().await;
|
||||||
|
}
|
||||||
|
}
|
||||||
8
rust-toolchain.toml
Normal file
8
rust-toolchain.toml
Normal file
@ -0,0 +1,8 @@
|
|||||||
|
# Before upgrading check that everything is available on all tier1 targets here:
|
||||||
|
# https://rust-lang.github.io/rustup-components-history
|
||||||
|
[toolchain]
|
||||||
|
channel = "nightly-2023-04-04"
|
||||||
|
components = [ "rust-src", "rustfmt" ]
|
||||||
|
targets = [
|
||||||
|
"thumbv6m-none-eabi",
|
||||||
|
]
|
||||||
161
src/device.rs
Normal file
161
src/device.rs
Normal file
@ -0,0 +1,161 @@
|
|||||||
|
use crate::socket;
|
||||||
|
use crate::spi::SpiInterface;
|
||||||
|
use embedded_hal_async::spi::SpiDevice;
|
||||||
|
|
||||||
|
pub const MODE: u16 = 0x00;
|
||||||
|
pub const MAC: u16 = 0x09;
|
||||||
|
pub const SOCKET_INTR: u16 = 0x18;
|
||||||
|
pub const PHY_CFG: u16 = 0x2E;
|
||||||
|
|
||||||
|
#[repr(u8)]
|
||||||
|
pub enum RegisterBlock {
|
||||||
|
Common = 0x00,
|
||||||
|
Socket0 = 0x01,
|
||||||
|
TxBuf = 0x02,
|
||||||
|
RxBuf = 0x03,
|
||||||
|
}
|
||||||
|
|
||||||
|
/// W5500 in MACRAW mode
|
||||||
|
#[derive(Debug)]
|
||||||
|
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
|
||||||
|
pub struct W5500<SPI> {
|
||||||
|
bus: SpiInterface<SPI>,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl<SPI: SpiDevice> W5500<SPI> {
|
||||||
|
/// Create and initialize the W5500 driver
|
||||||
|
pub async fn new(spi: SPI, mac_addr: [u8; 6]) -> Result<W5500<SPI>, SPI::Error> {
|
||||||
|
let mut bus = SpiInterface(spi);
|
||||||
|
// Reset device
|
||||||
|
bus.write_frame(RegisterBlock::Common, MODE, &[0x80])
|
||||||
|
.await?;
|
||||||
|
|
||||||
|
// Enable interrupt pin
|
||||||
|
bus.write_frame(RegisterBlock::Common, SOCKET_INTR, &[0x01])
|
||||||
|
.await?;
|
||||||
|
// Enable receive interrupt
|
||||||
|
bus.write_frame(
|
||||||
|
RegisterBlock::Socket0,
|
||||||
|
socket::SOCKET_INTR_MASK,
|
||||||
|
&[socket::Interrupt::Receive as u8],
|
||||||
|
)
|
||||||
|
.await?;
|
||||||
|
|
||||||
|
// Set MAC address
|
||||||
|
bus.write_frame(RegisterBlock::Common, MAC, &mac_addr)
|
||||||
|
.await?;
|
||||||
|
|
||||||
|
// Set the raw socket RX/TX buffer sizes to 16KB
|
||||||
|
bus.write_frame(RegisterBlock::Socket0, socket::TXBUF_SIZE, &[16])
|
||||||
|
.await?;
|
||||||
|
bus.write_frame(RegisterBlock::Socket0, socket::RXBUF_SIZE, &[16])
|
||||||
|
.await?;
|
||||||
|
|
||||||
|
// MACRAW mode with MAC filtering.
|
||||||
|
let mode: u8 = (1 << 2) | (1 << 7);
|
||||||
|
bus.write_frame(RegisterBlock::Socket0, socket::MODE, &[mode])
|
||||||
|
.await?;
|
||||||
|
socket::command(&mut bus, socket::Command::Open).await?;
|
||||||
|
|
||||||
|
Ok(Self { bus })
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Read bytes from the RX buffer. Returns the number of bytes read.
|
||||||
|
async fn read_bytes(&mut self, buffer: &mut [u8], offset: u16) -> Result<usize, SPI::Error> {
|
||||||
|
let rx_size = socket::get_rx_size(&mut self.bus).await? as usize;
|
||||||
|
|
||||||
|
let read_buffer = if rx_size > buffer.len() + offset as usize {
|
||||||
|
buffer
|
||||||
|
} else {
|
||||||
|
&mut buffer[..rx_size - offset as usize]
|
||||||
|
};
|
||||||
|
|
||||||
|
let read_ptr = socket::get_rx_read_ptr(&mut self.bus)
|
||||||
|
.await?
|
||||||
|
.wrapping_add(offset);
|
||||||
|
self.bus
|
||||||
|
.read_frame(RegisterBlock::RxBuf, read_ptr, read_buffer)
|
||||||
|
.await?;
|
||||||
|
socket::set_rx_read_ptr(
|
||||||
|
&mut self.bus,
|
||||||
|
read_ptr.wrapping_add(read_buffer.len() as u16),
|
||||||
|
)
|
||||||
|
.await?;
|
||||||
|
|
||||||
|
Ok(read_buffer.len())
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Read an ethernet frame from the device. Returns the number of bytes read.
|
||||||
|
pub async fn read_frame(&mut self, frame: &mut [u8]) -> Result<usize, SPI::Error> {
|
||||||
|
let rx_size = socket::get_rx_size(&mut self.bus).await? as usize;
|
||||||
|
if rx_size == 0 {
|
||||||
|
return Ok(0);
|
||||||
|
}
|
||||||
|
|
||||||
|
socket::reset_interrupt(&mut self.bus, socket::Interrupt::Receive).await?;
|
||||||
|
|
||||||
|
// First two bytes gives the size of the received ethernet frame
|
||||||
|
let expected_frame_size: usize = {
|
||||||
|
let mut frame_bytes = [0u8; 2];
|
||||||
|
assert!(self.read_bytes(&mut frame_bytes[..], 0).await? == 2);
|
||||||
|
u16::from_be_bytes(frame_bytes) as usize - 2
|
||||||
|
};
|
||||||
|
|
||||||
|
// Read the ethernet frame
|
||||||
|
let read_buffer = if frame.len() > expected_frame_size {
|
||||||
|
&mut frame[..expected_frame_size]
|
||||||
|
} else {
|
||||||
|
frame
|
||||||
|
};
|
||||||
|
|
||||||
|
let recvd_frame_size = self.read_bytes(read_buffer, 2).await?;
|
||||||
|
|
||||||
|
// Register RX as completed
|
||||||
|
socket::command(&mut self.bus, socket::Command::Receive).await?;
|
||||||
|
|
||||||
|
// If the whole frame wasn't read, drop it
|
||||||
|
if recvd_frame_size < expected_frame_size {
|
||||||
|
Ok(0)
|
||||||
|
} else {
|
||||||
|
Ok(recvd_frame_size)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Write an ethernet frame to the device. Returns number of bytes written
|
||||||
|
pub async fn write_frame(&mut self, frame: &[u8]) -> Result<usize, SPI::Error> {
|
||||||
|
let max_size = socket::get_tx_free_size(&mut self.bus).await? as usize;
|
||||||
|
|
||||||
|
let write_data = if frame.len() < max_size {
|
||||||
|
frame
|
||||||
|
} else {
|
||||||
|
&frame[..max_size]
|
||||||
|
};
|
||||||
|
|
||||||
|
let write_ptr = socket::get_tx_write_ptr(&mut self.bus).await?;
|
||||||
|
self.bus
|
||||||
|
.write_frame(RegisterBlock::TxBuf, write_ptr, write_data)
|
||||||
|
.await?;
|
||||||
|
socket::set_tx_write_ptr(
|
||||||
|
&mut self.bus,
|
||||||
|
write_ptr.wrapping_add(write_data.len() as u16),
|
||||||
|
)
|
||||||
|
.await?;
|
||||||
|
|
||||||
|
socket::reset_interrupt(&mut self.bus, socket::Interrupt::SendOk).await?;
|
||||||
|
socket::command(&mut self.bus, socket::Command::Send).await?;
|
||||||
|
// Wait for TX to complete
|
||||||
|
while !socket::is_interrupt(&mut self.bus, socket::Interrupt::SendOk).await? {}
|
||||||
|
socket::reset_interrupt(&mut self.bus, socket::Interrupt::SendOk).await?;
|
||||||
|
|
||||||
|
Ok(write_data.len())
|
||||||
|
}
|
||||||
|
|
||||||
|
pub async fn is_link_up(&mut self) -> bool {
|
||||||
|
let mut link = [0];
|
||||||
|
self.bus
|
||||||
|
.read_frame(RegisterBlock::Common, PHY_CFG, &mut link)
|
||||||
|
.await
|
||||||
|
.ok();
|
||||||
|
link[0] & 1 == 1
|
||||||
|
}
|
||||||
|
}
|
||||||
114
src/lib.rs
Normal file
114
src/lib.rs
Normal file
@ -0,0 +1,114 @@
|
|||||||
|
#![no_std]
|
||||||
|
/// [`embassy-net`](crates.io/crates/embassy-net) driver for the WIZnet W5500 ethernet chip.
|
||||||
|
mod device;
|
||||||
|
mod socket;
|
||||||
|
mod spi;
|
||||||
|
|
||||||
|
use crate::device::W5500;
|
||||||
|
use embassy_futures::select::{select, Either};
|
||||||
|
use embassy_net_driver_channel as ch;
|
||||||
|
use embassy_net_driver_channel::driver::LinkState;
|
||||||
|
use embassy_time::{Duration, Timer};
|
||||||
|
use embedded_hal::digital::OutputPin;
|
||||||
|
use embedded_hal_async::digital::Wait;
|
||||||
|
use embedded_hal_async::spi::SpiDevice;
|
||||||
|
const MTU: usize = 1514;
|
||||||
|
|
||||||
|
/// Type alias for the embassy-net driver for W5500
|
||||||
|
pub type Device<'d> = embassy_net_driver_channel::Device<'d, MTU>;
|
||||||
|
|
||||||
|
/// Internal state for the embassy-net integration.
|
||||||
|
pub struct State<const N_RX: usize, const N_TX: usize> {
|
||||||
|
ch_state: ch::State<MTU, N_RX, N_TX>,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl<const N_RX: usize, const N_TX: usize> State<N_RX, N_TX> {
|
||||||
|
/// Create a new `State`.
|
||||||
|
pub const fn new() -> Self {
|
||||||
|
Self {
|
||||||
|
ch_state: ch::State::new(),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Background runner for the W5500.
|
||||||
|
///
|
||||||
|
/// You must call `.run()` in a background task for the W5500 to operate.
|
||||||
|
pub struct Runner<'d, SPI: SpiDevice, INT: Wait, RST: OutputPin> {
|
||||||
|
mac: W5500<SPI>,
|
||||||
|
ch: ch::Runner<'d, MTU>,
|
||||||
|
int: INT,
|
||||||
|
_reset: RST,
|
||||||
|
}
|
||||||
|
|
||||||
|
/// You must call this in a background task for the W5500 to operate.
|
||||||
|
impl<'d, SPI: SpiDevice, INT: Wait, RST: OutputPin> Runner<'d, SPI, INT, RST> {
|
||||||
|
pub async fn run(mut self) -> ! {
|
||||||
|
let (state_chan, mut rx_chan, mut tx_chan) = self.ch.split();
|
||||||
|
loop {
|
||||||
|
if self.mac.is_link_up().await {
|
||||||
|
state_chan.set_link_state(LinkState::Up);
|
||||||
|
loop {
|
||||||
|
match select(
|
||||||
|
async {
|
||||||
|
self.int.wait_for_low().await.ok();
|
||||||
|
rx_chan.rx_buf().await
|
||||||
|
},
|
||||||
|
tx_chan.tx_buf(),
|
||||||
|
)
|
||||||
|
.await
|
||||||
|
{
|
||||||
|
Either::First(p) => {
|
||||||
|
if let Ok(n) = self.mac.read_frame(p).await {
|
||||||
|
rx_chan.rx_done(n);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Either::Second(p) => {
|
||||||
|
self.mac.write_frame(p).await.ok();
|
||||||
|
tx_chan.tx_done();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
state_chan.set_link_state(LinkState::Down);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Obtain a driver for using the W5500 with [`embassy-net`](crates.io/crates/embassy-net).
|
||||||
|
pub async fn new<
|
||||||
|
'a,
|
||||||
|
const N_RX: usize,
|
||||||
|
const N_TX: usize,
|
||||||
|
SPI: SpiDevice,
|
||||||
|
INT: Wait,
|
||||||
|
RST: OutputPin,
|
||||||
|
>(
|
||||||
|
mac_addr: [u8; 6],
|
||||||
|
state: &'a mut State<N_RX, N_TX>,
|
||||||
|
spi_dev: SPI,
|
||||||
|
int: INT,
|
||||||
|
mut reset: RST,
|
||||||
|
) -> (Device<'a>, Runner<'a, SPI, INT, RST>) {
|
||||||
|
// Reset the W5500.
|
||||||
|
reset.set_low().ok();
|
||||||
|
// Ensure the reset is registered.
|
||||||
|
Timer::after(Duration::from_millis(1)).await;
|
||||||
|
reset.set_high().ok();
|
||||||
|
// Wait for the W5500 to achieve PLL lock.
|
||||||
|
Timer::after(Duration::from_millis(2)).await;
|
||||||
|
|
||||||
|
let mac = W5500::new(spi_dev, mac_addr).await.unwrap();
|
||||||
|
|
||||||
|
let (runner, device) = ch::new(&mut state.ch_state, mac_addr);
|
||||||
|
(
|
||||||
|
device,
|
||||||
|
Runner {
|
||||||
|
ch: runner,
|
||||||
|
mac,
|
||||||
|
int,
|
||||||
|
_reset: reset,
|
||||||
|
},
|
||||||
|
)
|
||||||
|
}
|
||||||
114
src/socket.rs
Normal file
114
src/socket.rs
Normal file
@ -0,0 +1,114 @@
|
|||||||
|
use crate::device::RegisterBlock;
|
||||||
|
use crate::spi::SpiInterface;
|
||||||
|
use embedded_hal_async::spi::SpiDevice;
|
||||||
|
|
||||||
|
pub const MODE: u16 = 0x00;
|
||||||
|
pub const COMMAND: u16 = 0x01;
|
||||||
|
pub const RXBUF_SIZE: u16 = 0x1E;
|
||||||
|
pub const TXBUF_SIZE: u16 = 0x1F;
|
||||||
|
pub const TX_FREE_SIZE: u16 = 0x20;
|
||||||
|
pub const TX_DATA_WRITE_PTR: u16 = 0x24;
|
||||||
|
pub const RECVD_SIZE: u16 = 0x26;
|
||||||
|
pub const RX_DATA_READ_PTR: u16 = 0x28;
|
||||||
|
pub const SOCKET_INTR_MASK: u16 = 0x2C;
|
||||||
|
|
||||||
|
#[repr(u8)]
|
||||||
|
pub enum Command {
|
||||||
|
Open = 0x01,
|
||||||
|
Send = 0x20,
|
||||||
|
Receive = 0x40,
|
||||||
|
}
|
||||||
|
|
||||||
|
pub const INTR: u16 = 0x02;
|
||||||
|
#[repr(u8)]
|
||||||
|
pub enum Interrupt {
|
||||||
|
SendOk = 0b010000_u8,
|
||||||
|
Receive = 0b00100_u8,
|
||||||
|
}
|
||||||
|
|
||||||
|
pub async fn reset_interrupt<SPI: SpiDevice>(
|
||||||
|
bus: &mut SpiInterface<SPI>,
|
||||||
|
code: Interrupt,
|
||||||
|
) -> Result<(), SPI::Error> {
|
||||||
|
let data = [code as u8];
|
||||||
|
bus.write_frame(RegisterBlock::Socket0, INTR, &data).await
|
||||||
|
}
|
||||||
|
|
||||||
|
pub async fn is_interrupt<SPI: SpiDevice>(
|
||||||
|
bus: &mut SpiInterface<SPI>,
|
||||||
|
code: Interrupt,
|
||||||
|
) -> Result<bool, SPI::Error> {
|
||||||
|
let mut data = [0u8];
|
||||||
|
bus.read_frame(RegisterBlock::Socket0, INTR, &mut data)
|
||||||
|
.await?;
|
||||||
|
Ok(data[0] & code as u8 != 0)
|
||||||
|
}
|
||||||
|
|
||||||
|
pub async fn get_tx_write_ptr<SPI: SpiDevice>(
|
||||||
|
bus: &mut SpiInterface<SPI>,
|
||||||
|
) -> Result<u16, SPI::Error> {
|
||||||
|
let mut data = [0u8; 2];
|
||||||
|
bus.read_frame(RegisterBlock::Socket0, TX_DATA_WRITE_PTR, &mut data)
|
||||||
|
.await?;
|
||||||
|
Ok(u16::from_be_bytes(data))
|
||||||
|
}
|
||||||
|
|
||||||
|
pub async fn set_tx_write_ptr<SPI: SpiDevice>(
|
||||||
|
bus: &mut SpiInterface<SPI>,
|
||||||
|
ptr: u16,
|
||||||
|
) -> Result<(), SPI::Error> {
|
||||||
|
let data = ptr.to_be_bytes();
|
||||||
|
bus.write_frame(RegisterBlock::Socket0, TX_DATA_WRITE_PTR, &data)
|
||||||
|
.await
|
||||||
|
}
|
||||||
|
|
||||||
|
pub async fn get_rx_read_ptr<SPI: SpiDevice>(
|
||||||
|
bus: &mut SpiInterface<SPI>,
|
||||||
|
) -> Result<u16, SPI::Error> {
|
||||||
|
let mut data = [0u8; 2];
|
||||||
|
bus.read_frame(RegisterBlock::Socket0, RX_DATA_READ_PTR, &mut data)
|
||||||
|
.await?;
|
||||||
|
Ok(u16::from_be_bytes(data))
|
||||||
|
}
|
||||||
|
|
||||||
|
pub async fn set_rx_read_ptr<SPI: SpiDevice>(
|
||||||
|
bus: &mut SpiInterface<SPI>,
|
||||||
|
ptr: u16,
|
||||||
|
) -> Result<(), SPI::Error> {
|
||||||
|
let data = ptr.to_be_bytes();
|
||||||
|
bus.write_frame(RegisterBlock::Socket0, RX_DATA_READ_PTR, &data)
|
||||||
|
.await
|
||||||
|
}
|
||||||
|
|
||||||
|
pub async fn command<SPI: SpiDevice>(
|
||||||
|
bus: &mut SpiInterface<SPI>,
|
||||||
|
command: Command,
|
||||||
|
) -> Result<(), SPI::Error> {
|
||||||
|
let data = [command as u8];
|
||||||
|
bus.write_frame(RegisterBlock::Socket0, COMMAND, &data)
|
||||||
|
.await
|
||||||
|
}
|
||||||
|
|
||||||
|
pub async fn get_rx_size<SPI: SpiDevice>(bus: &mut SpiInterface<SPI>) -> Result<u16, SPI::Error> {
|
||||||
|
loop {
|
||||||
|
// Wait until two sequential reads are equal
|
||||||
|
let mut res0 = [0u8; 2];
|
||||||
|
bus.read_frame(RegisterBlock::Socket0, RECVD_SIZE, &mut res0)
|
||||||
|
.await?;
|
||||||
|
let mut res1 = [0u8; 2];
|
||||||
|
bus.read_frame(RegisterBlock::Socket0, RECVD_SIZE, &mut res1)
|
||||||
|
.await?;
|
||||||
|
if res0 == res1 {
|
||||||
|
break Ok(u16::from_be_bytes(res0));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
pub async fn get_tx_free_size<SPI: SpiDevice>(
|
||||||
|
bus: &mut SpiInterface<SPI>,
|
||||||
|
) -> Result<u16, SPI::Error> {
|
||||||
|
let mut data = [0; 2];
|
||||||
|
bus.read_frame(RegisterBlock::Socket0, TX_FREE_SIZE, &mut data)
|
||||||
|
.await?;
|
||||||
|
Ok(u16::from_be_bytes(data))
|
||||||
|
}
|
||||||
37
src/spi.rs
Normal file
37
src/spi.rs
Normal file
@ -0,0 +1,37 @@
|
|||||||
|
use crate::device::RegisterBlock;
|
||||||
|
use embedded_hal_async::spi::{Operation, SpiDevice};
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
|
||||||
|
pub struct SpiInterface<SPI>(pub SPI);
|
||||||
|
|
||||||
|
impl<SPI: SpiDevice> SpiInterface<SPI> {
|
||||||
|
pub async fn read_frame(
|
||||||
|
&mut self,
|
||||||
|
block: RegisterBlock,
|
||||||
|
address: u16,
|
||||||
|
data: &mut [u8],
|
||||||
|
) -> Result<(), SPI::Error> {
|
||||||
|
let address_phase = address.to_be_bytes();
|
||||||
|
let control_phase = [(block as u8) << 3];
|
||||||
|
let operations = &mut [
|
||||||
|
Operation::Write(&address_phase),
|
||||||
|
Operation::Write(&control_phase),
|
||||||
|
Operation::TransferInPlace(data),
|
||||||
|
];
|
||||||
|
self.0.transaction(operations).await
|
||||||
|
}
|
||||||
|
|
||||||
|
pub async fn write_frame(
|
||||||
|
&mut self,
|
||||||
|
block: RegisterBlock,
|
||||||
|
address: u16,
|
||||||
|
data: &[u8],
|
||||||
|
) -> Result<(), SPI::Error> {
|
||||||
|
let address_phase = address.to_be_bytes();
|
||||||
|
let control_phase = [(block as u8) << 3 | 0b0000_0100];
|
||||||
|
let data_phase = data;
|
||||||
|
let operations = &[&address_phase[..], &control_phase, &data_phase];
|
||||||
|
self.0.write_transaction(operations).await
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user