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FeStats: get_signal_level(), get_signal_noise_ratio()

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This commit is contained in:
Andrey Dyldin 2021-01-29 22:42:46 +02:00
parent 8c8979b9c5
commit 95bc2c59f7
1 changed files with 27 additions and 17 deletions
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44
src/fe/status.rs
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@ -82,8 +82,12 @@ impl fmt::Display for FeStatus {
}
write!(f, " S:")?;
if let Some((decibel, relative)) = self.get_signal_level() {
write!(f, "{:.02}dBm ({:.0}%)", decibel, relative)?;
if let Some(s) = self.get_signal_level() {
// TODO: config for lo/hi
let lo: f64 = -85.0;
let hi: f64 = -6.0;
let relative = 100.0 - (s - hi) * 100.0 / (lo - hi);
write!(f, "{:.02}dBm ({:.0}%)", s, relative)?;
} else {
write!(f, "-")?;
}
@ -93,8 +97,9 @@ impl fmt::Display for FeStatus {
}
write!(f, " Q:")?;
if let Some((decibel, relative)) = self.get_signal_noise_ratio() {
write!(f, "{:.02}dB ({}%)", decibel, relative)?;
if let Some(q) = self.get_signal_noise_ratio() {
let relative = q * 2.;
write!(f, "{:.02}dB ({:.0}%)", q, relative)?;
} else {
write!(f, "-")?;
}
@ -123,22 +128,27 @@ impl fmt::Display for FeStatus {
impl FeStatus {
fn get_signal_level(&self) -> Option<(f64, u64)> {
let stats = self.props.get(0)?;
let _stats = unsafe { &stats.u.st };
// TODO: config for lo/hi
// let lo: f64 = -85.0;
// let hi: f64 = -6.0;
// let relative = 100.0 - (decibel - hi) * 100.0 / (lo - hi);
fn get_stats_decibel(&self, u: usize) -> Option<f64> {
let stats = self.props.get(u)?;
let stats = unsafe { &stats.u.st };
let len = ::std::cmp::min(stats.len as usize, stats.stat.len());
for s in stats.stat[.. len].iter() {
if s.scale == FE_SCALE_DECIBEL {
return Some((s.value as f64) / 1000.0);
}
}
None
}
fn get_signal_noise_ratio(&self) -> Option<(f64, u64)> {
let stats = self.props.get(1)?;
let _stats = unsafe { &stats.u.st };
// let relative = 5 * decibel as u32;
None
}
/// Returns Signal Level in dBm
#[inline]
pub fn get_signal_level(&self) -> Option<f64> { self.get_stats_decibel(0) }
/// Returns Signal to noise ratio in dB
#[inline]
pub fn get_signal_noise_ratio(&self) -> Option<f64> { self.get_stats_decibel(1) }
fn get_stats_counter(&self, u: usize) -> Option<u32> {
let stats = self.props.get(u)?;