38 lines
1021 B
Rust
38 lines
1021 B
Rust
use crate::{CcsdsPacket, PacketError};
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use core::mem::size_of;
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use crc::{Crc, CRC_16_IBM_3740};
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use serde::{Deserialize, Serialize};
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/// CRC algorithm used by the PUS standard
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pub const CRC_CCITT_FALSE: Crc<u16> = Crc::<u16>::new(&CRC_16_IBM_3740);
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pub const CCSDS_HEADER_LEN: usize = size_of::<crate::zc::SpHeader>();
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/// All PUS versions. Only PUS C is supported by this library
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#[derive(PartialEq, Copy, Clone, Serialize, Deserialize, Debug)]
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pub enum PusVersion {
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EsaPus = 0,
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PusA = 1,
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PusC = 2,
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}
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#[derive(Debug, Copy, Clone, PartialEq)]
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pub enum PusError {
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VersionNotSupported(PusVersion),
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IncorrectCrc(u16),
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RawDataTooShort(usize),
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NoRawData,
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/// CRC16 needs to be calculated first
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CrcCalculationMissing,
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OtherPacketError(PacketError),
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}
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pub trait PusPacket: CcsdsPacket {
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const PUS_VERSION: PusVersion = PusVersion::PusC;
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fn service(&self) -> u8;
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fn subservice(&self) -> u8;
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fn user_data(&self) -> Option<&[u8]>;
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fn crc16(&self) -> Option<u16>;
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}
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