From b39db75cf47e21de3b34fb1ba8cd209fa29a494d Mon Sep 17 00:00:00 2001
From: Stephen Marz <stephen.marz@utk.edu>
Date: Wed, 18 Mar 2020 10:40:27 -0400
Subject: [PATCH] Add fs and minix

---
 risc_v/src/fs.rs      | 16 ++++++++++++++++
 risc_v/src/lib.rs     |  2 ++
 risc_v/src/minixfs.rs | 11 +++++++++++
 3 files changed, 29 insertions(+)
 create mode 100755 risc_v/src/fs.rs
 create mode 100755 risc_v/src/minixfs.rs

diff --git a/risc_v/src/fs.rs b/risc_v/src/fs.rs
new file mode 100755
index 0000000..1efdaa5
--- /dev/null
+++ b/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 {
+
+}
diff --git a/risc_v/src/lib.rs b/risc_v/src/lib.rs
index dfb2b18..35630ec 100755
--- a/risc_v/src/lib.rs
+++ b/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;
diff --git a/risc_v/src/minixfs.rs b/risc_v/src/minixfs.rs
new file mode 100755
index 0000000..e1e1336
--- /dev/null
+++ b/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 {
+
+}
+