Add fs and minix

risc_v/src/fs.rs

@@ -0,0 +1,16 @@
+// fs.rs
+// Filesystem for SOS
+// Stephen Marz
+// 16 March 2020
+
+use alloc::string::String;
+
+pub trait FileSystem {
+    fn open(path: &String) -> Option<Descriptor>;
+    fn read(desc: &Descriptor, buffer: *mut u8, offset: u32, size: u32) -> u32;
+}
+
+/// A file descriptor
+pub struct Descriptor {
+
+}

risc_v/src/lib.rs

@@ -164,7 +164,9 @@ extern "C" fn kinit_hart(_hartid: usize) {
 
 pub mod block;
 pub mod cpu;
+pub mod fs;
 pub mod kmem;
+pub mod minixfs;
 pub mod page;
 pub mod plic;
 pub mod process;

risc_v/src/minixfs.rs

@@ -0,0 +1,11 @@
+// minixfs.rs
+// Minix 3 Filesystem Implementation
+// Stephen Marz
+// 16 March 2020
+
+use crate::fs::{Descriptor, FileSystem};
+
+pub struct MinixFileSystem {
+
+}
+