Move serial driver to arch::x86_64::dev::serial

Cargo.lock

@@ -29,6 +29,31 @@ dependencies = [
  "shlex",
 ]
 
+[[package]]
+name = "crossbeam"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1137cd7e7fc0fb5d3c5a8678be38ec56e819125d8d7907411fe24ccb943faca8"
+dependencies = [
+ "crossbeam-queue",
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-queue"
+version = "0.3.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0f58bbc28f91df819d0aa2a2c00cd19754769c2fad90579b3592b1c9ba7a3115"
+dependencies = [
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.8.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d0a5c400df2834b80a4c3327b3aad3a4c4cd4de0629063962b03235697506a28"
+
 [[package]]
 name = "darling"
 version = "0.20.10"
@@ -75,6 +100,8 @@ name = "foundry_os"
 version = "0.1.0"
 dependencies = [
  "cc",
+ "crossbeam",
+ "futures-util",
  "libm",
  "limine",
  "pc-keyboard",
@@ -83,6 +110,30 @@ dependencies = [
  "x86_64",
 ]
 
+[[package]]
+name = "futures-core"
+version = "0.3.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05f29059c0c2090612e8d742178b0580d2dc940c837851ad723096f87af6663e"
+
+[[package]]
+name = "futures-task"
+version = "0.3.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f90f7dce0722e95104fcb095585910c0977252f286e354b5e3bd38902cd99988"
+
+[[package]]
+name = "futures-util"
+version = "0.3.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9fa08315bb612088cc391249efdc3bc77536f16c91f6cf495e6fbe85b20a4a81"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "pin-project-lite",
+ "pin-utils",
+]
+
 [[package]]
 name = "ident_case"
 version = "1.0.1"
@@ -133,6 +184,18 @@ dependencies = [
  "x86_64",
 ]
 
+[[package]]
+name = "pin-project-lite"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b3cff922bd51709b605d9ead9aa71031d81447142d828eb4a6eba76fe619f9b"
+
+[[package]]
+name = "pin-utils"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.93"

kernel/Cargo.toml

@@ -12,6 +12,13 @@ spin = "0.9.8"
 pic8259 = "0.11.0"
 pc-keyboard = "0.8.0"
 libm = { version = "0.1.0", path = "../libm" }
+crossbeam = { version = "0.8.4", default-features = false, features = [
+    # "alloc",
+    "crossbeam-queue",
+] }
+futures-util = { version = "0.3.31", default-features = false, features = [
+    # "alloc",
+] }
 
 [build-dependencies]
 cc = "1.2.14"

kernel/src/arch/x86_64/dev/mod.rs

@@ -1 +1,2 @@
 pub mod pic;
+pub mod serial;

kernel/src/arch/x86_64/dev/serial.rs

@@ -8,7 +8,7 @@ use x86_64::instructions::interrupts;
 
 #[macro_export]
 macro_rules! serial_print {
-    ($($arg:tt)*) => ($crate::io::serial::_serial_write(format_args!($($arg)*)));
+    ($($arg:tt)*) => ($crate::arch::x86_64::dev::serial::_serial_write(format_args!($($arg)*)));
 }
 
 #[macro_export]

kernel/src/arch/x86_64/memmap.rs

@@ -1,5 +1,4 @@
 //! Sets up a memory map using Limine.
-
 use limine::{
     request::{HhdmRequest, KernelAddressRequest, MemoryMapRequest},
     response::MemoryMapResponse,

kernel/src/io/keyboard.rs

@@ -1,32 +1,36 @@
-/* use core::{
+use core::{
     pin::Pin,
     task::{Context, Poll},
 };
 
+use crossbeam::queue::ArrayQueue;
+use futures_util::{Stream, StreamExt, task::AtomicWaker};
 use pc_keyboard::{
     DecodedKey, HandleControl, KeyCode, Keyboard, ScancodeSet1,
     layouts::{self, Uk105Key},
 };
 use spin::{Lazy, Mutex, Once};
 
-// static KBD_QUEUE: Once<ArrayQueue<u8>> = Once::new();
+static KBD_QUEUE: Once<ArrayQueue<u8>> = Once::new();
-// static WAKER: AtomicWaker = AtomicWaker::new();
+static WAKER: AtomicWaker = AtomicWaker::new();
 
-pub static KEYBOARD: Lazy<Mutex<Keyboard<Uk105Key, ScancodeSet1>>> = Lazy::new(|| {
+pub static KEYBOARD: Lazy<Mutex<Keyboard<Uk105Key, ScancodeSet1>>> =
+    Lazy::new(|| {
         Mutex::new(Keyboard::new(
             ScancodeSet1::new(),
             // TODO: Expose an API to change the default KB layout.
             layouts::Uk105Key,
             HandleControl::Ignore,
         ))
-});
+    });
 pub static SCANCODE_STREAM: Lazy<Mutex<ScancodeStream>> =
     Lazy::new(|| Mutex::new(ScancodeStream::new()));
 
 pub fn add_scancode(scancode: u8) {
     if let Some(queue) = KBD_QUEUE.get() {
         if queue.push(scancode).is_err() {
-            // println!("WARNING: scancode queue full; dropping keyboard input");
+            // println!("WARNING: scancode queue full; dropping keyboard
+            // input");
         } else {
             WAKER.wake();
         }
@@ -59,7 +63,10 @@ impl Default for ScancodeStream {
 impl Stream for ScancodeStream {
     type Item = u8;
 
-    fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
+    fn poll_next(
+        self: Pin<&mut Self>,
+        cx: &mut Context<'_>,
+    ) -> Poll<Option<Self::Item>> {
         let queue = KBD_QUEUE.get().unwrap();
 
         if let Some(scancode) = queue.pop() {
@@ -200,4 +207,3 @@ impl core::fmt::Display for KeyStroke {
         }
     }
 }
- */

kernel/src/io/mod.rs

@@ -1,14 +1 @@
-pub mod keyboard;
+// pub mod keyboard;
-pub mod serial;
-
-// Re-exported macro definitions.
-
-/* pub use crate::print;
-pub use crate::print_log;
-pub use crate::printerr;
-pub use crate::println;
-pub use crate::println_log;
-pub use crate::printlnerr;
-pub use crate::serial_print;
-pub use crate::serial_println;
-*/

kernel/src/lib.rs

@@ -11,10 +11,10 @@
     rustdoc::missing_panics_doc
 )]
 
+use arch::x86_64::dev::serial;
 use arch::x86_64::{gdt, interrupts};
 use core::arch::asm;
 use graphics::font::{FONT_SPLEEN_8X16, Font};
-use io::serial;
 use limine::BaseRevision;
 
 pub mod arch;