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use crate::binrw_util;
use alloc::vec::Vec;
use binrw::binrw;
/// RFBand sub-block: interference info for a single RF band.
#[binrw]
#[derive(Clone, Debug)]
pub struct RFBand {
/// Center frequency of the RF band (Hz).
pub frequency: u32,
/// Bandwidth of the RF band (kHz).
pub bandwidth: u16,
/// Info byte. Bits 0-3: mode (1=manual notch, 2=detected+mitigated, 8=detected no mitigation).
/// Bits 6-7: antenna ID (0=main, 1=aux1, 2=aux2).
pub info: u8,
/// Estimated interference power (dBm). 0 if unknown.
#[br(map = binrw_util::map_i1_zero)]
#[bw(map = binrw_util::unmap_i1_zero)]
pub power: Option<i8>,
}
impl RFBand {
/// Interference mitigation mode (bits 0-3).
pub fn mode(&self) -> u8 {
self.info & 0x0F
}
/// Antenna ID (bits 6-7): 0=main, 1=aux1, 2=aux2.
pub fn antenna_id(&self) -> u8 {
(self.info >> 6) & 0x03
}
/// Whether the receiver detected and successfully mitigated interference.
pub fn mitigated(&self) -> bool {
self.mode() == 2
}
/// Whether interference was detected but not mitigated.
pub fn detected_unmitigated(&self) -> bool {
self.mode() == 8
}
}
// RFStatus Block 4092
#[binrw]
#[derive(Clone, Debug)]
pub struct RFStatus {
#[br(map = binrw_util::map_u4)]
#[bw(map = binrw_util::unmap_u4)]
pub tow: Option<u32>,
#[br(map = binrw_util::map_u2)]
#[bw(map = binrw_util::unmap_u2)]
pub wnc: Option<u16>,
n: u8,
pub sb_length: u8,
/// Bit 0: GNSS signals may not be authentic (spoofing/simulator).
/// Bit 1: NMA check failed (e.g. Galileo OSNMA).
pub flags: u8,
_reserved: [u8; 3],
#[br(args { count: usize::from(n), inner: (usize::from(sb_length),) }, map = binrw_util::unwrap_subblocks)]
#[bw(args_raw = (usize::from(*sb_length),), map = binrw_util::wrap_subblocks)]
pub bands: Vec<RFBand>,
#[br(parse_with = binrw::helpers::until_eof)]
_padding: Vec<u8>,
}
impl RFStatus {
/// Number of RF bands with interference info.
pub fn num_bands(&self) -> u8 {
self.n
}
/// Whether the receiver suspects non-authentic GNSS signals (spoofing).
pub fn spoofing_detected(&self) -> bool {
self.flags & 0x01 != 0
}
/// Whether NMA (Navigation Message Authentication) verification failed.
pub fn nma_failed(&self) -> bool {
self.flags & 0x02 != 0
}
}