Struct PciConfigByteEnable 

pub struct PciConfigByteEnable(/* private fields */);

Byte enables for the four lanes of a PCI configuration DWORD.

Implementations

impl PciConfigByteEnable

pub const FULL: Self

All byte lanes enabled.

pub const BYTE0: Self

Byte lane 0 enabled.

pub const BYTE1: Self

Byte lane 1 enabled.

pub const BYTE2: Self

Byte lane 2 enabled.

pub const BYTE3: Self

Byte lane 3 enabled.

pub const LOW_WORD: Self

Low word byte lanes enabled.

pub const HIGH_WORD: Self

High word byte lanes enabled.

pub const fn new(bits: u8) -> Option<Self>

Create byte enables from raw lane bits.

pub const fn from_offset_len(offset: u16, len: usize) -> Result<Self, IoError>

Create byte enables for an access at offset with byte length len.

pub const fn to_byte_offset_len(self) -> (u16, usize)

Returns the byte offset of the first enabled byte in the DWORD and the number of enabled bytes.

pub const fn bits(self) -> u8

Raw byte-lane bits.

pub const fn is_full(self) -> bool

Returns true if all byte lanes are enabled.

pub const fn mask(self) -> u32

u32 mask corresponding to the enabled byte lanes.

pub const fn merge(self, current_value: u32, write_value: u32) -> u32

Merge enabled byte lanes from write_value into current_value.

pub const fn extract(self, value: u32) -> u32

Keep only enabled byte lanes from value.

pub const fn restrict(self, byte_enable: PciConfigByteEnable) -> Option<Self>

Restrict the underlying byte enable to only include the provided bytes, or None when no bytes would be left enabled.

pub const fn exclude(self, byte_enable: PciConfigByteEnable) -> Option<Self>

Exclude the provided bytes from the underlying byte enable, returning None when no bytes would be left enabled.

Trait Implementations

impl Clone for PciConfigByteEnable

fn clone(&self) -> PciConfigByteEnable

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PciConfigByteEnable

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl DefaultEncoding for PciConfigByteEnable

type Encoding = TableEncoder

The encoding to use for the serialization.

impl Inspect for PciConfigByteEnable

fn inspect(&self, req: Request<'_>)

Inspects the object.

impl PartialEq for PciConfigByteEnable

fn eq(&self, other: &PciConfigByteEnable) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'encoding> StructDecodeMetadata<'encoding, Resource> for PciConfigByteEnable

const DECODERS: &'static [ErasedDecoderEntry]

The list of decoder vtables.

impl StructEncodeMetadata<Resource> for PciConfigByteEnable

const ENCODERS: &'static [ErasedEncoderEntry]

The list of encoder vtables.

impl StructMetadata for PciConfigByteEnable

const NUMBERS: &'static [u32]

The field numbers for each field.

const OFFSETS: &'static [usize]

The byte offset to each field within the struct.

impl Copy for PciConfigByteEnable

impl Eq for PciConfigByteEnable

impl StructuralPartialEq for PciConfigByteEnable