esp-hal/esp-wifi/MIGRATING-0.10.md

Migration Guide from 0.10.x to v0.11.x

Initialization changes

EspWifiInitFor has been removed, individual drivers such as Wifi and BleConnector handle the initialization and de-initialization of the radio stack.

EspWifiInit has been removed in favour of EspWifiController, each radio driver takes reference to this object. If no driver is borrowing EspWifiController, you can safely call EspWifiController::deinit() to completely deinit the stack and return the peripherals used in esp_wifi::init.

esp-wifi::init now takes all peripherals using the PeripheralRef pattern, with the exception of the rng source.

esp_wifi::init now accepts esp_hal::rng::Rng or esp_hal::rng::Trng.

The following error enum variants have been removed from InitializationError:

• Timer(hal::timer::Error)
• TimerUnavailable
• RadioClockUnavailable

No need to include rom_functions.x manually

Don't include rom_functions.x from esp-wifi

rustflags = [
    "-C", "link-arg=-Tlinkall.x",
-    "-C", "link-arg=-Trom_functions.x",
]

ESP-NOW: Use data to access the received payload

Previously data and len were public - use the previously already existing data() function.

Accessing data or len was never encouraged.

Async features have been removed and async functionality is always available

The cost of this is that we need to rename the various async methods on WifiController.

- controller.start().await.unwrap();
+ controller.start_async().await.unwrap();

The blocking networking stack was removed

The blocking networking stack is not included anymore. You can use e.g. smoltcp-nal or even use smoltcp directly.

For an easy migration path there is https://github.com/bjoernQ/blocking-network-stack.git which is basically the previously included networking stack as it's own crate.

The create_network_interface function doesn't take &mut SocketSet[..] anymore.

+use blocking_network_stack::Stack;
use esp_wifi::{
-    wifi_interface::WifiStack,
};

+    let mut rng = Rng::new(peripherals.RNG);
-    let init = init(timg0.timer0, rng, peripherals.RADIO_CLK).unwrap();
+    let init = init(timg0.timer0, rng.clone(), peripherals.RADIO_CLK).unwrap();
 
     let mut wifi = peripherals.WIFI;
     let mut socket_set_entries: [SocketStorage; 3] = Default::default();
+    let (iface, device, mut controller) =
+        create_network_interface(&init, &mut wifi, WifiStaDevice).unwrap();
+
-    let (iface, device, mut controller, sockets) =
-        create_network_interface(&init, &mut wifi, WifiStaDevice, &mut socket_set_entries).unwrap();
+    let socket_set = SocketSet::new(&mut socket_set_entries[..]);
     let now = || time::now().duration_since_epoch().to_millis();
-    let wifi_stack = WifiStack::new(iface, device, sockets, now);
+    let wifi_stack = Stack::new(iface, device, socket_set, now, rng.random());

The related features are removed from esp-wifi: wifi-default, ipv6, ipv4, tcp, udp, icmp, igmp, dns, dhcpv4