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