chore: checkpoint before Python removal

vendor/r-efi/src/protocols/disk_io.rs

@@ -0,0 +1,40 @@
+//! Disk I/O Protocol
+//!
+//! Abstracts block accesses of the Block I/O protocol to a more general offset-length protocol.
+//! Firmware is responsible for adding this protocol to any Block I/O interface that appears
+//! in the system that does not already have a Disk I/O protocol. File systems and other disk
+//! access code utilize the Disk I/O protocol.
+
+pub const PROTOCOL_GUID: crate::base::Guid = crate::base::Guid::from_fields(
+    0xce345171,
+    0xba0b,
+    0x11d2,
+    0x8e,
+    0x4f,
+    &[0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b],
+);
+
+pub const REVISION: u64 = 0x0000000000010000u64;
+
+pub type ProtocolReadDisk = unsafe extern "efiapi" fn(
+    *mut Protocol,
+    u32,
+    u64,
+    usize,
+    *mut core::ffi::c_void,
+) -> crate::base::Status;
+
+pub type ProtocolWriteDisk = unsafe extern "efiapi" fn(
+    *mut Protocol,
+    u32,
+    u64,
+    usize,
+    *mut core::ffi::c_void,
+) -> crate::base::Status;
+
+#[repr(C)]
+pub struct Protocol {
+    pub revision: u64,
+    pub read_disk: ProtocolReadDisk,
+    pub write_disk: ProtocolWriteDisk,
+}