add at command file

embassy-net-nrf91/src/at.rs

@@ -0,0 +1,45 @@
+use crate::{Error, Control};
+
+// Drives the control loop of the modem based on declarative configuration.
+pub struct AtDriver<'a> {
+    control: Control<'a>,
+    config: Config,
+}
+
+pub struct Config {
+    pub network: NetworkConfig,
+}
+
+pub struct NetworkConfig {
+    pub apn: &'static str,
+    pub prot: AuthProtection,
+    pub userid: &'static str,
+    pub password: &'static str,
+}
+
+#[repr(u8)]
+pub enum AuthProtection {
+    None = 0,
+    Pap = 1,
+    Chap = 2,
+}
+
+impl<'a> AtDriver<'a> {
+    pub async fn new(control: Control<'a>, config: Config) -> Result<Self, Error> {
+        control.wait_init().await;
+        Ok(Self {
+            control,
+            config,
+        })
+    }
+
+    async fn setup(&self) -> Result<(), Error> {
+
+    }
+
+    pub fn run(&self, stack: Stack<crate::NetDriver<'static>>) -> ! {
+        loop {
+
+        }
+    }
+}