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//! Block I/O Protocol
//!
//! Used to abstract mass storage devices to allow code running in the EFI boot services environment
//! to access the storage devices without specific knowledge of the type of device or controller that
//! manages the device.
pub const PROTOCOL_GUID: crate::base::Guid = crate::base::Guid::from_fields(
0x964e5b21,
0x6459,
0x11d2,
0x8e,
0x39,
&[0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b],
);
pub const REVISION: u64 = 0x0000000000010000u64;
pub const REVISION2: u64 = 0x0000000000020001u64;
pub const REVISION3: u64 = 0x000000000002001fu64;
#[repr(C)]
#[derive(Clone, Copy, Debug)]
pub struct Media {
pub media_id: u32,
pub removable_media: bool,
pub media_present: bool,
pub logical_partition: bool,
pub read_only: bool,
pub write_caching: bool,
pub block_size: u32,
pub io_align: u32,
pub last_block: crate::base::Lba,
pub lowest_aligned_lba: crate::base::Lba,
pub logical_blocks_per_physical_block: u32,
pub optimal_transfer_length_granularity: u32,
}
pub type ProtocolReset = eficall! {fn(
*mut Protocol,
crate::base::Boolean,
) -> crate::base::Status};
pub type ProtocolReadBlocks = eficall! {fn(
*mut Protocol,
u32,
crate::base::Lba,
usize,
*mut core::ffi::c_void,
) -> crate::base::Status};
pub type ProtocolWriteBlocks = eficall! {fn(
*mut Protocol,
u32,
crate::base::Lba,
usize,
*mut core::ffi::c_void,
) -> crate::base::Status};
pub type ProtocolFlushBlocks = eficall! {fn(
*mut Protocol,
) -> crate::base::Status};
#[repr(C)]
pub struct Protocol {
pub revision: u64,
pub media: *const Media,
pub reset: ProtocolReset,
pub read_blocks: ProtocolReadBlocks,
pub write_blocks: ProtocolWriteBlocks,
pub flush_blocks: ProtocolFlushBlocks,
}
|
