Add example for ethernet (#289)

* Add example for ethernet

* Make eth example esp32 only

* Change sys imports

* Try just importing esp_idf_svc

examples/eth.rs

@@ -0,0 +1,65 @@
+#[cfg(esp32)]
+use esp_idf_svc::{
+    eth::{BlockingEth, EspEth, EthDriver},
+    eventloop::EspSystemEventLoop,
+    hal::{gpio, prelude::Peripherals},
+    log::EspLogger,
+};
+#[cfg(esp32)]
+use log::info;
+
+#[cfg(esp32)]
+fn main() -> anyhow::Result<()> {
+    esp_idf_svc::sys::link_patches();
+    EspLogger::initialize_default();
+
+    let peripherals = Peripherals::take().unwrap();
+    let pins = peripherals.pins;
+    let sys_loop = EspSystemEventLoop::take()?;
+
+    // Make sure to configure ethernet in sdkconfig and adjust the parameters below for your hardware
+    let eth_driver = EthDriver::new(
+        peripherals.mac,
+        pins.gpio25,
+        pins.gpio26,
+        pins.gpio27,
+        pins.gpio23,
+        pins.gpio22,
+        pins.gpio21,
+        pins.gpio19,
+        pins.gpio18,
+        esp_idf_svc::eth::RmiiClockConfig::<gpio::Gpio0, gpio::Gpio16, gpio::Gpio17>::OutputInvertedGpio17(
+            pins.gpio17,
+        ),
+        Some(pins.gpio5),
+        esp_idf_svc::eth::RmiiEthChipset::LAN87XX,
+        Some(0),
+        sys_loop.clone(),
+    )?;
+    let eth = EspEth::wrap(eth_driver)?;
+
+    info!("Eth created");
+
+    let mut eth = BlockingEth::wrap(eth, sys_loop.clone())?;
+
+    info!("Starting eth...");
+
+    eth.start()?;
+
+    info!("Waiting for DHCP lease...");
+
+    eth.wait_netif_up()?;
+
+    let ip_info = eth.eth().netif().get_ip_info()?;
+
+    info!("Eth DHCP info: {:?}", ip_info);
+
+    Ok(())
+}
+
+#[cfg(not(esp32))]
+fn main() {
+    use esp_idf_svc::{self as _};
+
+    panic!("This example is configured for esp32, please adjust pins to your module");
+}

examples/http_request.rs

@@ -19,6 +19,7 @@ const SSID: &str = env!("WIFI_SSID");
 const PASSWORD: &str = env!("WIFI_PASS");
 
 fn main() -> anyhow::Result<()> {
+    esp_idf_svc::sys::link_patches();
     EspLogger::initialize_default();
 
     // Setup Wifi

examples/nvs_get_set_c_style.rs

@@ -14,6 +14,7 @@ use esp_idf_svc::nvs::*;
 use log::info;
 
 fn main() -> anyhow::Result<()> {
+    esp_idf_svc::sys::link_patches();
     EspLogger::initialize_default();
 
     let nvs_default_partition: EspNvsPartition<NvsDefault> =

examples/tls.rs

@@ -50,6 +50,7 @@ A7sKPPcw7+uvTPyLNhBzPvOk
 -----END CERTIFICATE-----\0";
 
 fn main() -> anyhow::Result<()> {
+    esp_idf_svc::sys::link_patches();
     EspLogger::initialize_default();
 
     let peripherals = Peripherals::take().unwrap();

examples/wifi.rs

@@ -15,6 +15,7 @@ const SSID: &str = env!("WIFI_SSID");
 const PASSWORD: &str = env!("WIFI_PASS");
 
 fn main() -> anyhow::Result<()> {
+    esp_idf_svc::sys::link_patches();
     EspLogger::initialize_default();
 
     let peripherals = Peripherals::take().unwrap();

examples/wifi_async.rs

@@ -18,6 +18,7 @@ const SSID: &str = env!("WIFI_SSID");
 const PASSWORD: &str = env!("WIFI_PASS");
 
 fn main() -> anyhow::Result<()> {
+    esp_idf_svc::sys::link_patches();
     EspLogger::initialize_default();
 
     let peripherals = Peripherals::take().unwrap();