Enum SignallingKind 

#[non_exhaustive]
pub enum SignallingKind {
    Bufs {
        bufs: u16,
        units: BufsUnit,
    },
    Tto {
        tto_e: u8,
        tto_m: u8,
        tto_l: u8,
    },
    Reserved(u32),
}

Decoded BUFS/TTO signalling — EN 302 755 Annex C, Table C.1.

The 11 prefix in the first ISSY byte selects one of two alternatives: BUFS (buffer status) or TTO (time-to-output), indicated by bits [5:4].

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Bufs

BUFS — maximum size of the requested receiver buffer.

Fields: (bufs, units) where bufs is the 10-bit buffer status and units is the 2-bit unit selector.

Fields

bufs: u16

10-bit buffer status value.

units: BufsUnit

2-bit unit selector (Table C.1).

Tto

TTO — time-to-output (mantissa + exponent form).

The output time is TTO = (tto_m + tto_l / 256) * 2^tto_e where tto_l is zero when ISCRshort is in use.

Fields

tto_e: u8

5-bit exponent TTO_E.

tto_m: u8

7-bit mantissa TTO_M.

tto_l: u8

8-bit low-fraction TTO_L (zero when ISCRshort is in use).

Reserved(u32)

Reserved signalling type (bits [5:4] = 0b10 or 0b11).

Holds the low 20 bits of the signalling payload; the 2-bit kind selector is not retained. This is a decode-only view — the wire bytes live in Bbheader::issy_in_header and are serialized verbatim, so the dropped selector does not affect round-trip fidelity.

Trait Implementations

impl Clone for SignallingKind

fn clone(&self) -> SignallingKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SignallingKind

impl Debug for SignallingKind

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

Formats the value using the given formatter.

impl Eq for SignallingKind

impl PartialEq for SignallingKind

fn eq(&self, other: &SignallingKind) -> 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 Serialize for SignallingKind

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for SignallingKind