add file protocols

lib/std/os/uefi/protocols.zig

@@ -2,6 +2,10 @@ pub const LoadedImageProtocol = @import("protocols/loaded_image_protocol.zig").L
 
 pub const DevicePathProtocol = @import("protocols/device_path_protocol.zig").DevicePathProtocol;
 
+pub const SimpleFileSystemProtocol = @import("protocols/simple_file_system_protocol.zig").SimpleFileSystemProtocol;
+pub const FileProtocol = @import("protocols/file_protocol.zig").FileProtocol;
+pub const FileInfo = @import("protocols/file_protocol.zig").FileInfo;
+
 pub const InputKey = @import("protocols/simple_text_input_ex_protocol.zig").InputKey;
 pub const KeyData = @import("protocols/simple_text_input_ex_protocol.zig").KeyData;
 pub const KeyState = @import("protocols/simple_text_input_ex_protocol.zig").KeyState;

lib/std/os/uefi/protocols/file_protocol.zig

@@ -0,0 +1,87 @@
+const uefi = @import("std").os.uefi;
+const Guid = uefi.Guid;
+const Time = uefi.Time;
+
+const FileProtocol = extern struct {
+    revision: u64,
+    _open: extern fn (*const FileProtocol, **const FileProtocol, *u16, u64, u64) usize,
+    _close: extern fn (*const FileProtocol) usize,
+    _delete: extern fn (*const FileProtocol) usize,
+    _read: extern fn (*const FileProtocol, *usize, *c_void) usize,
+    _write: extern fn (*const FileProtocol, *usize, *c_void) usize,
+    _get_info: extern fn (*const FileProtocol, *Guid, *usize, *c_void) usize,
+    _set_info: extern fn (*const FileProtocol, *Guid, usize, *c_void) usize,
+    _flush: extern fn (*const FileProtocol) usize,
+
+    pub fn open(self: *const FileProtocol, new_handle: **const FileProtocol, file_name: *u16, open_mode: u64, attributes: u64) usize {
+        return self._open(self, new_handle, file_name, open_mode, attributes);
+    }
+
+    pub fn close(self: *const FileProtocol) usize {
+        return self._close(self);
+    }
+
+    pub fn delete(self: *const FileProtocol) usize {
+        return self._delete(self);
+    }
+
+    pub fn read(self: *const FileProtocol, buffer_size: *usize, buffer: *c_void) usize {
+        return self._read(self, buffer_size, buffer);
+    }
+
+    pub fn write(self: *const FileProtocol, buffer_size: *usize, buffer: *c_void) usize {
+        return self._write(self, buffer_size, buffer);
+    }
+
+    pub fn get_info(self: *const FileProtocol, information_type: *Guid, buffer_size: *usize, buffer: *c_void) usize {
+        return self._get_info(self, information_type, buffer_size, buffer);
+    }
+
+    pub fn set_info(self: *const FileProtocol, information_type: *Guid, buffer_size: usize, buffer: *c_void) usize {
+        return self._set_info(self, information_type, buffer_size, buffer);
+    }
+
+    pub fn flush(self: *const FileProtocol) usize {
+        return self._flush(self);
+    }
+
+    pub const guid align(8) = Guid{
+        .time_low = 0x09576e92,
+        .time_mid = 0x6d3f,
+        .time_high_and_version = 0x11d2,
+        .clock_seq_high_and_reserved = 0x8e,
+        .clock_seq_low = 0x39,
+        .node = [_]u8{ 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b },
+    };
+
+    pub const efi_file_mode_read: u64 = 0x0000000000000001;
+    pub const efi_file_mode_write: u64 = 0x0000000000000002;
+    pub const efi_file_mode_create: u64 = 0x8000000000000000;
+
+    pub const efi_file_read_only: u64 = 0x0000000000000001;
+    pub const efi_file_hidden: u64 = 0x0000000000000002;
+    pub const efi_file_system: u64 = 0x0000000000000004;
+    pub const efi_file_reserved: u64 = 0x0000000000000008;
+    pub const efi_file_directory: u64 = 0x0000000000000010;
+    pub const efi_file_archive: u64 = 0x0000000000000020;
+    pub const efi_file_valid_attr: u64 = 0x0000000000000037;
+};
+
+const FileInfo = extern struct {
+    size: u64,
+    file_size: u64,
+    physical_size: u64,
+    create_time: Time,
+    last_access_time: Time,
+    modification_time: Time,
+    attribute: u64,
+    file_name: [100:0]u16,
+
+    pub const efi_file_read_only: u64 = 0x0000000000000001;
+    pub const efi_file_hidden: u64 = 0x0000000000000002;
+    pub const efi_file_system: u64 = 0x0000000000000004;
+    pub const efi_file_reserved: u64 = 0x0000000000000008;
+    pub const efi_file_directory: u64 = 0x0000000000000010;
+    pub const efi_file_archive: u64 = 0x0000000000000020;
+    pub const efi_file_valid_attr: u64 = 0x0000000000000037;
+};

lib/std/os/uefi/protocols/simple_file_system_protocol.zig

@@ -0,0 +1,21 @@
+const uefi = @import("std").os.uefi;
+const Guid = uefi.Guid;
+const FileProtocol = uefi.protocols.FileProtocol;
+
+const SimpleFileSystemProtocol = extern struct {
+    revision: u64,
+    _open_volume: extern fn (*const SimpleFileSystemProtocol, **const FileProtocol) usize,
+
+    pub fn openVolume(self: *const SimpleFileSystemProtocol, root: **const FileProtocol) usize {
+        return self._open_volume(self, root);
+    }
+
+    pub const guid align(8) = Guid{
+        .time_low = 0x0964e5b22,
+        .time_mid = 0x6459,
+        .time_high_and_version = 0x11d2,
+        .clock_seq_high_and_reserved = 0x8e,
+        .clock_seq_low = 0x39,
+        .node = [_]u8{ 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b },
+    };
+};