nal-client: init

Cargo.toml

@@ -17,7 +17,9 @@ smoltcp = { version = "0.6.0", default-features = false, features = [ "ethernet"
 nb = "1.0.0"
 scpi = { git = "https://github.com/occheung/scpi-rs", branch = "issue-4" }
 lexical-core = { version="0.7.1", features=["radix"], default-features=false }
-libm = { version = "0.2.0" }
+libm = "0.2.0"
+embedded-nal = "0.1.0"
+minimq = "0.1.0"
 
 # Logging and Panicking
 panic-itm = "0.4.1"

examples/ethernet.rs

@@ -58,6 +58,9 @@ use smoltcp::socket::SocketSet;
 use smoltcp::socket::{SocketHandle, TcpSocket, TcpSocketBuffer};
 use smoltcp::time::{Duration, Instant};
 
+// Use embedded-nal to access smoltcp
+use embedded_nal::TcpStack;
+
 use firmware;
 use firmware::{
 	attenuator::Attenuator,
@@ -301,8 +304,6 @@ fn main() -> ! {
     };
 
     let mut eth_up = false;
-    let mut receive_and_not_send = true;
-    let mut counter = 0;
 
     // Record activeness of silent socket, init as false
     let mut silent_socket_active = false;
@@ -319,7 +320,7 @@ fn main() -> ! {
             },
         };
 
-	    // Counting socket (:6969)
+	    // Float rounding test socket (:6969)
         {
             let mut socket = sockets.get::<TcpSocket>(tcp1_handle);
             if !socket.is_open() {
@@ -327,24 +328,16 @@ fn main() -> ! {
                 socket.set_timeout(Some(Duration::from_millis(5000)));
             }
 
-            if socket.can_recv() && receive_and_not_send {
+            if socket.can_recv() {
                 let data = socket.recv(|buffer| {
                     (buffer.len(), buffer)
                 }).unwrap();
                 hprintln!("{:?}", data).unwrap();
                 let result = lexical_core::parse_partial::<f64>(data).unwrap();
                 writeln!(socket, "{}", round(result.0 * 2.0));
-            }
-		    else if socket.can_recv() {
-				// hprintln!("{:?}", socket.can_recv());
-		    }
-
-            if socket.can_send() && !receive_and_not_send {
-                writeln!(socket, "{}", counter);
-                receive_and_not_send = true;
             }
         }
-		// Silent socket (:7000)
+		//  SCPI interaction socket (:7000)
 		{
 		    let mut socket = sockets.get::<TcpSocket>(silent_handle);
 		    if !socket.is_open() {

src/dds.rs

@@ -357,7 +357,7 @@ where
 		// Test configuration register by getting SDIO_IN_ONLY and LSB_FIRST.
 		let mut error_count = 0;
 		let mut config_checks = [
-			(DDSCFRMask::SDIO_IN_ONLY, 0),
+			(DDSCFRMask::SDIO_IN_ONLY, 1),
 			(DDSCFRMask::LSB_FIRST, 0)
 		];
 		self.get_configurations(&mut config_checks)?;

src/lib.rs

@@ -1,4 +1,5 @@
 #![no_std]
+#![feature(generic_associated_types)]
 extern crate embedded_hal;
 use embedded_hal::{
 	digital::v2::OutputPin,
@@ -37,6 +38,8 @@ use crate::dds::DDS;
 
 pub mod scpi;
 
+pub mod nal_tcp_client;
+
 /*
  *	Enum for structuring error
  */

src/nal_tcp_client.rs

@@ -0,0 +1,109 @@
+use embedded_nal::{TcpStack, Mode, SocketAddr};
+use embedded_nal::SocketAddr::{V4, V6};
+
+use smoltcp::wire::{EthernetAddress, IpAddress, IpCidr};
+use smoltcp::iface::{NeighborCache, EthernetInterfaceBuilder};
+use smoltcp::socket::SocketSet;
+use smoltcp::socket::{SocketHandle, TcpSocket, TcpSocketBuffer};
+use smoltcp::time::{Duration, Instant};
+use smoltcp::Error;
+
+use nb::Error as nbError;
+use core::cell;
+
+const BUFFER_SIZE: usize = 2048;
+pub static mut TX_STORAGE: &'static mut [u8] = &mut [0; BUFFER_SIZE];
+pub static mut RX_STORAGE: &'static mut [u8] = &mut [0; BUFFER_SIZE];
+
+/*
+ *  Struct for a TCP socket
+ *  TODO: Consider handling all sockets in this struct
+ */
+pub struct NalTcpClient {}
+
+// impl NalTcpClient {
+//     pub fn new(socket: &'a mut TcpSocket<'a>) -> Self {
+
+//         NalTcpClient {
+//             socket,
+//         }
+//     }
+// }
+
+impl<'a> TcpStack for &'a NalTcpClient{
+    // The type returned when we create a new TCP socket
+    type TcpSocket = smoltcp::socket::TcpSocket<'a>;
+    // The type returned when we have an error
+    type Error = Error;
+
+    // Open a new TCP socket. The socket starts in the unconnected state.
+    fn open(&self, mode: Mode) -> Result<Self::TcpSocket, Self::Error> {
+        let tx_buffer = unsafe { TcpSocketBuffer::new(&mut TX_STORAGE[..]) };
+        let rx_buffer = unsafe { TcpSocketBuffer::new(&mut RX_STORAGE[..]) };
+        let mut socket = TcpSocket::new(rx_buffer, tx_buffer);
+        if let Mode::Timeout(dur) = mode {
+            socket.set_timeout(Some(Duration::from_millis(dur.into())));
+        }
+        Ok(socket)
+    }
+
+    // Connect to the given remote host and port.
+	fn connect(
+		&self,
+		mut socket: Self::TcpSocket,
+		remote: SocketAddr,
+	) -> Result<Self::TcpSocket, Self::Error> {
+        let result = match remote {
+            V4(v4_addr) => {
+                let ip_addr = v4_addr.ip().octets();
+                socket.connect((IpAddress::v4(ip_addr[0], ip_addr[1], ip_addr[2], ip_addr[3]), v4_addr.port()), 49500)
+            },
+            V6(v6_addr) => {
+                let ip_addr = v6_addr.ip().segments();
+                socket.connect((IpAddress::v6(ip_addr[0], ip_addr[1], ip_addr[2], ip_addr[3],
+                    ip_addr[0], ip_addr[1], ip_addr[2], ip_addr[3]), v6_addr.port()), 49500)
+            }
+        };
+        match result {
+            Ok(_) => Ok(socket),
+            Err(_e) => Err(_e),
+        }
+    }
+
+	/// Check if this socket is connected
+	fn is_connected(&self, socket: &Self::TcpSocket) -> Result<bool, Self::Error> {
+        Ok(socket.is_active())
+    }
+
+	/// Write to the stream. Returns the number of bytes written is returned
+	/// (which may be less than `buffer.len()`), or an error.
+	fn write(&self, socket: &mut Self::TcpSocket, buffer: &[u8]) -> nb::Result<usize, Self::Error> {
+        if socket.can_send() {
+            socket.send_slice(buffer).map_err(nbError::Other)
+        } else {
+            Err(nbError::Other(Error::Illegal))
+        }
+    }
+
+	/// Read from the stream. Returns `Ok(n)`, which means `n` bytes of
+	/// data have been received and they have been placed in
+	/// `&buffer[0..n]`, or an error.
+	fn read(
+		&self,
+		socket: &mut Self::TcpSocket,
+		buffer: &mut [u8],
+	) -> nb::Result<usize, Self::Error> {
+        if socket.can_recv() {
+            socket.recv_slice(buffer).map_err(nbError::Other)
+        } else {
+            Err(nbError::Other(Error::Illegal))
+        }
+    }
+
+	/// Close an existing TCP socket.
+	fn close(&self, mut socket: Self::TcpSocket) -> Result<(), Self::Error> {
+        socket.close();
+        Ok(())
+    }
+}
+

src/scpi.rs

@@ -29,6 +29,7 @@ use scpi::{
 };
 
 use embedded_hal::blocking::spi::Transfer;
+use cortex_m_semihosting::hprintln;
 
 use crate::Urukul;
 
@@ -70,6 +71,7 @@ where
     }
 
     fn tst(&mut self) -> Result<()> {
+        hprintln!("Testing Urukul...").unwrap();
         match self.test() {
             Ok(0) => Ok(()),
             Ok(_) => Err(Error::new(