Added bootloader

bootloader/src/os/mod.rs

@@ -0,0 +1,81 @@
+use redoxfs::Disk;
+
+#[cfg(all(target_arch = "x86", target_os = "none"))]
+pub use self::bios::*;
+
+#[cfg(all(target_arch = "x86", target_os = "none"))]
+#[macro_use]
+mod bios;
+
+#[derive(Clone, Copy, Debug)]
+pub enum OsHwDesc {
+	Acpi(u64, u64),
+	DeviceTree(u64, u64),
+	NotFound,
+}
+
+#[derive(Clone, Copy, Debug)]
+pub enum OsKey {
+	Left,
+	Right,
+	Up,
+	Down,
+	Backspace,
+	Delete,
+	Enter,
+	Char(char),
+	Other,
+}
+
+// Keep synced with BootloaderMemoryKind in kernel
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+#[repr(u64)]
+pub enum OsMemoryKind {
+	Null = 0,
+	Free = 1,
+	Reclaim = 2,
+	Reserved = 3,
+}
+
+// Keep synced with BootloaderMemoryEntry in kernel
+#[derive(Clone, Copy, Debug)]
+#[repr(C, packed(8))]
+pub struct OsMemoryEntry {
+	pub base: u64,
+	pub size: u64,
+	pub kind: OsMemoryKind,
+}
+
+#[derive(Clone, Copy, Debug)]
+pub struct OsVideoMode {
+	pub id: u32,
+	pub width: u32,
+	pub height: u32,
+	pub stride: u32,
+	pub base: u64,
+}
+
+pub trait Os<D: Disk, V: Iterator<Item = OsVideoMode>> {
+	fn name(&self) -> &str;
+
+	fn alloc_zeroed_page_aligned(&self, size: usize) -> *mut u8;
+
+	#[allow(dead_code)]
+	fn page_size(&self) -> usize;
+
+	fn filesystem(&self, password_opt: Option<&[u8]>) -> syscall::Result<redoxfs::FileSystem<D>>;
+
+	fn hwdesc(&self) -> OsHwDesc;
+
+	fn video_outputs(&self) -> usize;
+	fn video_modes(&self, output_i: usize) -> V;
+	fn set_video_mode(&self, output_i: usize, mode: &mut OsVideoMode);
+	fn best_resolution(&self, output_i: usize) -> Option<(u32, u32)>;
+
+	fn get_key(&self) -> OsKey;
+
+	fn clear_text(&self);
+	fn get_text_position(&self) -> (usize, usize);
+	fn set_text_position(&self, x: usize, y: usize);
+	fn set_text_highlight(&self, highlight: bool);
+}