From ce7353fba4e2a133087f0312ae47184aa180642e Mon Sep 17 00:00:00 2001
From: Dario Nieuwenhuis <dirbaio@dirbaio.net>
Date: Tue, 12 Jul 2022 07:52:16 +0200
Subject: Hook up embassy-net. IT WORKS.

---
 examples/rpi-pico-w/Cargo.toml  |  9 +++++
 examples/rpi-pico-w/src/main.rs | 78 +++++++++++++++++++++++++++++++++++++++--
 2 files changed, 84 insertions(+), 3 deletions(-)

(limited to 'examples')

diff --git a/examples/rpi-pico-w/Cargo.toml b/examples/rpi-pico-w/Cargo.toml
index 8dbcb20d4..9e1d75470 100644
--- a/examples/rpi-pico-w/Cargo.toml
+++ b/examples/rpi-pico-w/Cargo.toml
@@ -8,6 +8,7 @@ edition = "2021"
 cyw43 = { path = "../../", features = ["defmt"]}
 embassy = { version = "0.1.0",  features = ["defmt", "defmt-timestamp-uptime"] }
 embassy-rp = { version = "0.1.0",  features = ["defmt", "unstable-traits", "nightly", "unstable-pac"] }
+embassy-net = { version = "0.1.0", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet", "pool-16"] }
 atomic-polyfill = "0.1.5"
 
 defmt = "0.3"
@@ -20,13 +21,21 @@ futures = { version = "0.3.17", default-features = false, features = ["async-awa
 
 embedded-hal-1 = { package = "embedded-hal", version = "1.0.0-alpha.8" }
 embedded-hal-async = { version = "0.1.0-alpha.1" }
+embedded-io = { version = "0.3.0", features = ["async", "defmt"] }
+heapless = "0.7.15"
 
 
 [patch.crates-io]
 embassy = { git = "https://github.com/embassy-rs/embassy", rev = "5f43c1d37e9db847c7861fe0bd821db62edba9f6" }
 embassy-rp = { git = "https://github.com/embassy-rs/embassy", rev = "5f43c1d37e9db847c7861fe0bd821db62edba9f6" }
+embassy-net = { git = "https://github.com/embassy-rs/embassy", rev = "5f43c1d37e9db847c7861fe0bd821db62edba9f6" }
 #embassy = { path = "/home/dirbaio/embassy/embassy/embassy" }
 #embassy-rp = { path = "/home/dirbaio/embassy/embassy/embassy-rp" }
+#embassy-net = { path = "/home/dirbaio/embassy/embassy/embassy-net" }
+#smoltcp = { path = "./smoltcp" }
+
+#[patch."https://github.com/smoltcp-rs/smoltcp"]
+#smoltcp = { path = "./smoltcp" }
 
 [profile.dev]
 debug = 2
diff --git a/examples/rpi-pico-w/src/main.rs b/examples/rpi-pico-w/src/main.rs
index 6d1614147..e08ee8e95 100644
--- a/examples/rpi-pico-w/src/main.rs
+++ b/examples/rpi-pico-w/src/main.rs
@@ -8,9 +8,13 @@ use defmt::{assert, assert_eq, panic, *};
 use embassy::executor::Spawner;
 use embassy::time::{Duration, Timer};
 use embassy::util::Forever;
+use embassy_net::tcp::TcpSocket;
+use embassy_net::{Ipv4Address, Ipv4Cidr, Stack, StackResources};
 use embassy_rp::gpio::{Flex, Level, Output, Pin};
 use embassy_rp::peripherals::{PIN_23, PIN_24, PIN_25, PIN_29};
 use embassy_rp::Peripherals;
+use embedded_io::asynch::{Read, Write};
+use heapless::Vec;
 use {defmt_rtt as _, panic_probe as _};
 
 macro_rules! forever {
@@ -26,6 +30,11 @@ async fn wifi_task(runner: cyw43::Runner<'static, PIN_23, PIN_25, PIN_29, PIN_24
     runner.run().await
 }
 
+#[embassy::task]
+async fn net_task(stack: &'static Stack<cyw43::NetDevice<'static>>) -> ! {
+    stack.run().await
+}
+
 #[embassy::main]
 async fn main(spawner: Spawner, p: Peripherals) {
     info!("Hello World!");
@@ -45,8 +54,71 @@ async fn main(spawner: Spawner, p: Peripherals) {
 
     spawner.spawn(wifi_task(runner)).unwrap();
 
-    control.init().await;
+    let net_device = control.init().await;
+
+    control.join_open("MikroTik-951589").await;
+    //control.join_wpa2("MikroTik-951589", "asdfasdfasdfasdf").await;
+
+    let config = embassy_net::ConfigStrategy::Dhcp;
+    //let config = embassy_net::ConfigStrategy::Static(embassy_net::Config {
+    //    address: Ipv4Cidr::new(Ipv4Address::new(192, 168, 69, 2), 24),
+    //    dns_servers: Vec::new(),
+    //    gateway: Some(Ipv4Address::new(192, 168, 69, 1)),
+    //});
+
+    // Generate random seed
+    let seed = 0x0123_4567_89ab_cdef; // chosen by fair dice roll. guarenteed to be random.
+
+    // Init network stack
+    let stack = &*forever!(Stack::new(
+        net_device,
+        config,
+        forever!(StackResources::<1, 2, 8>::new()),
+        seed
+    ));
+
+    unwrap!(spawner.spawn(net_task(stack)));
+
+    // And now we can use it!
+
+    let mut rx_buffer = [0; 4096];
+    let mut tx_buffer = [0; 4096];
+    let mut buf = [0; 4096];
+
+    loop {
+        let mut socket = TcpSocket::new(stack, &mut rx_buffer, &mut tx_buffer);
+        socket.set_timeout(Some(embassy_net::SmolDuration::from_secs(10)));
+
+        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());
+
+        loop {
+            let n = match socket.read(&mut buf).await {
+                Ok(0) => {
+                    warn!("read EOF");
+                    break;
+                }
+                Ok(n) => n,
+                Err(e) => {
+                    warn!("read error: {:?}", e);
+                    break;
+                }
+            };
+
+            info!("rxd {:02x}", &buf[..n]);
 
-    //control.join_open("MikroTik-951589").await;
-    control.join_wpa2("MikroTik-951589", "fasdfasdfasdf").await;
+            match socket.write_all(&buf[..n]).await {
+                Ok(()) => {}
+                Err(e) => {
+                    warn!("write error: {:?}", e);
+                    break;
+                }
+            };
+        }
+    }
 }
-- 
cgit