uefi_raw/protocol/
block.rs

1use crate::{guid, Guid, Status};
2use core::ffi::c_void;
3
4/// Logical block address.
5pub type Lba = u64;
6
7/// Media information structure
8#[repr(C)]
9#[derive(Clone, Copy, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
10pub struct BlockIoMedia {
11    pub media_id: u32,
12    pub removable_media: bool,
13    pub media_present: bool,
14    pub logical_partition: bool,
15    pub read_only: bool,
16    pub write_caching: bool,
17    pub block_size: u32,
18    pub io_align: u32,
19    pub last_block: Lba,
20
21    // Added in revision 2.
22    pub lowest_aligned_lba: Lba,
23    pub logical_blocks_per_physical_block: u32,
24
25    // Added in revision 3.
26    pub optimal_transfer_length_granularity: u32,
27}
28
29#[derive(Debug)]
30#[repr(C)]
31pub struct BlockIoProtocol {
32    pub revision: u64,
33    pub media: *const BlockIoMedia,
34    pub reset: unsafe extern "efiapi" fn(this: *mut Self, extended_verification: bool) -> Status,
35    pub read_blocks: unsafe extern "efiapi" fn(
36        this: *const Self,
37        media_id: u32,
38        lba: Lba,
39        buffer_size: usize,
40        buffer: *mut c_void,
41    ) -> Status,
42    pub write_blocks: unsafe extern "efiapi" fn(
43        this: *mut Self,
44        media_id: u32,
45        lba: Lba,
46        buffer_size: usize,
47        buffer: *const c_void,
48    ) -> Status,
49    pub flush_blocks: unsafe extern "efiapi" fn(this: *mut Self) -> Status,
50}
51
52impl BlockIoProtocol {
53    pub const GUID: Guid = guid!("964e5b21-6459-11d2-8e39-00a0c969723b");
54}
uefi_raw/protocol/block.rs

uefi_raw/protocol/
block.rs
