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https://github.com/danog/libdvb.git
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fe status cleaning
This commit is contained in:
Andrey Dyldin
parent
8a558d7470
commit
1580f838c9
124
src/fe/status.rs
124
src/fe/status.rs
@ -23,23 +23,31 @@ pub struct FeStatus {
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}
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const IDX_DELIVERY_SYSTEM: usize = 0;
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const IDX_MODULATION: usize = 1;
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const IDX_SIGNAL_STRENGTH: usize = 2;
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const IDX_SNR: usize = 3;
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const IDX_BER: usize = 4;
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const IDX_UNC: usize = 5;
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impl Default for FeStatus {
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fn default() -> FeStatus {
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FeStatus {
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status: 0,
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props: [
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// 0: delivery system
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// delivery system
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DtvProperty::new(DTV_DELIVERY_SYSTEM, FE_NONE),
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// 1: signal level
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DtvProperty::new(DTV_STAT_SIGNAL_STRENGTH, 0),
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// 2: signal-to-noise ratio
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DtvProperty::new(DTV_STAT_CNR, 0),
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// 3: ber - number of bit errors
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DtvProperty::new(DTV_STAT_PRE_ERROR_BIT_COUNT, 0),
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// 4: unc - number of block errors
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DtvProperty::new(DTV_STAT_ERROR_BLOCK_COUNT, 0),
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// 5: modulation
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// modulation
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DtvProperty::new(DTV_MODULATION, QPSK),
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// signal level
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DtvProperty::new(DTV_STAT_SIGNAL_STRENGTH, 0),
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// signal-to-noise ratio
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DtvProperty::new(DTV_STAT_CNR, 0),
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// ber - number of bit errors
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DtvProperty::new(DTV_STAT_PRE_ERROR_BIT_COUNT, 0),
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// unc - number of block errors
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DtvProperty::new(DTV_STAT_ERROR_BLOCK_COUNT, 0),
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],
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}
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}
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@ -136,15 +144,15 @@ impl fmt::Display for FeStatus {
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impl FeStatus {
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/// Returns current delivery system
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#[inline]
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pub fn get_delivery_system(&self) -> u32 { unsafe { self.props[0].u.data } }
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pub fn get_delivery_system(&self) -> u32 { unsafe { self.props[IDX_DELIVERY_SYSTEM].u.data } }
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/// Returns current modulation
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#[inline]
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pub fn get_modulation(&self) -> u32 { unsafe { self.props[5].u.data } }
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pub fn get_modulation(&self) -> u32 { unsafe { self.props[IDX_MODULATION].u.data } }
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/// Returns Signal Strength in dBm
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pub fn get_signal_strength_decibel(&self) -> Option<f64> {
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let stat = unsafe { &self.props[1].u.st.stat[0] };
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let stat = unsafe { &self.props[IDX_SIGNAL_STRENGTH].u.st.stat[0] };
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if stat.scale == FE_SCALE_DECIBEL {
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Some((stat.value as f64) / 1000.0)
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} else {
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@ -154,7 +162,7 @@ impl FeStatus {
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/// Returns Signal Strength in percentage
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pub fn get_signal_strength(&self) -> Option<u32> {
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let stat = unsafe { &self.props[1].u.st.stat[1] };
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let stat = unsafe { &self.props[IDX_SIGNAL_STRENGTH].u.st.stat[1] };
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if stat.scale == FE_SCALE_RELATIVE {
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Some(((stat.value & 0xFFFF) * 100 / 65535) as u32)
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} else {
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@ -164,7 +172,7 @@ impl FeStatus {
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/// Returns Signal to noise ratio in dB
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pub fn get_snr_decibel(&self) -> Option<f64> {
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let stat = unsafe { &self.props[2].u.st.stat[0] };
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let stat = unsafe { &self.props[IDX_SNR].u.st.stat[0] };
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if stat.scale == FE_SCALE_DECIBEL {
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Some((stat.value as f64) / 1000.0)
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} else {
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@ -174,7 +182,7 @@ impl FeStatus {
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/// Returns Signal Strength in percentage
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pub fn get_snr(&self) -> Option<u32> {
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let stat = unsafe { &self.props[2].u.st.stat[1] };
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let stat = unsafe { &self.props[IDX_SNR].u.st.stat[1] };
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if stat.scale == FE_SCALE_RELATIVE {
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Some(((stat.value & 0xFFFF) * 100 / 65535) as u32)
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} else {
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@ -184,9 +192,9 @@ impl FeStatus {
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/// Returns BER value if available
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pub fn get_ber(&self) -> Option<u32> {
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let stat = unsafe { &self.props[3].u.st.stat[0] };
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let stat = unsafe { &self.props[IDX_BER].u.st.stat[0] };
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if stat.scale == FE_SCALE_COUNTER {
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Some((stat.value & 0xFFFF) as u32)
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Some((stat.value & 0xFFFF_FFFF) as u32)
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} else {
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None
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}
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@ -194,16 +202,16 @@ impl FeStatus {
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/// Returns UNC value if available
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pub fn get_unc(&self) -> Option<u32> {
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let stat = unsafe { &self.props[4].u.st.stat[0] };
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let stat = unsafe { &self.props[IDX_UNC].u.st.stat[0] };
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if stat.scale == FE_SCALE_COUNTER {
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Some((stat.value & 0xFFFF) as u32)
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Some((stat.value & 0xFFFF_FFFF) as u32)
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} else {
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None
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}
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}
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fn normalize_signal_strength(&mut self, fe: &FeDevice) -> Result<()> {
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let mut stats = unsafe { &mut self.props[1].u.st };
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let mut stats = unsafe { &mut self.props[IDX_SIGNAL_STRENGTH].u.st };
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for i in usize::from(stats.len) .. 2 {
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stats.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
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@ -251,7 +259,7 @@ impl FeStatus {
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let delivery_system = self.get_delivery_system();
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let modulation = self.get_modulation();
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let mut stats = unsafe { &mut self.props[2].u.st };
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let mut stats = unsafe { &mut self.props[IDX_SNR].u.st };
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for i in usize::from(stats.len) .. 2 {
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stats.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
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@ -275,7 +283,7 @@ impl FeStatus {
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stats.stat[1].scale = FE_SCALE_RELATIVE;
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stats.stat[1].value = i64::from(value);
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} else if stats.stat[0].scale == FE_SCALE_DECIBEL {
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let maxdb = match delivery_system {
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let hi = match delivery_system {
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SYS_DVBS |
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SYS_DVBS2 => 15000,
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@ -294,59 +302,63 @@ impl FeStatus {
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}
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}
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_ => 0
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_ => return Ok(()),
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};
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if maxdb != 0 {
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stats.stat[1].scale = FE_SCALE_RELATIVE;
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stats.stat[1].value = {
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if stats.stat[0].value >= maxdb {
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65535
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} else if stats.stat[0].value <= 0 {
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0
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} else {
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65535 * stats.stat[0].value / maxdb
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}
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};
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}
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stats.stat[1].scale = FE_SCALE_RELATIVE;
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stats.stat[1].value = {
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if stats.stat[0].value >= hi {
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65535
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} else if stats.stat[0].value <= 0 {
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0
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} else {
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65535 * stats.stat[0].value / hi
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}
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};
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}
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Ok(())
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}
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fn normalize_ber(&mut self, fe: &FeDevice) -> Result<()> {
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let mut stats = unsafe { &mut self.props[3].u.st };
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if stats.len == 0 || stats.stat[0].scale != FE_SCALE_COUNTER {
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if let Ok(value) = fe.read_ber() {
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stats.stat[0].scale = FE_SCALE_COUNTER;
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stats.stat[0].value = i64::from(value);
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} else {
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stats.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
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stats.stat[0].value = 0;
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}
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let mut stats = unsafe { &mut self.props[IDX_BER].u.st };
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if stats.len == 0 {
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stats.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
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stats.stat[0].value = 0;
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stats.len = 1;
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}
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if stats.stat[0].scale == FE_SCALE_COUNTER || (self.status & FE_HAS_LOCK) == 0 {
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return Ok(())
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}
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if let Ok(value) = fe.read_ber() {
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stats.stat[0].scale = FE_SCALE_COUNTER;
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stats.stat[0].value = i64::from(value);
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}
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Ok(())
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}
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fn normalize_unc(&mut self, fe: &FeDevice) -> Result<()> {
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let mut stats = unsafe { &mut self.props[4].u.st };
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if stats.len == 0 || stats.stat[0].scale != FE_SCALE_COUNTER {
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if let Ok(value) = fe.read_unc() {
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stats.stat[0].scale = FE_SCALE_COUNTER;
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stats.stat[0].value = i64::from(value);
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} else {
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stats.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
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stats.stat[0].value = 0;
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}
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let mut stats = unsafe { &mut self.props[IDX_UNC].u.st };
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if stats.len == 0 {
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stats.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
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stats.stat[0].value = 0;
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stats.len = 1;
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}
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if stats.stat[0].scale == FE_SCALE_COUNTER || (self.status & FE_HAS_LOCK) == 0 {
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return Ok(())
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}
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if let Ok(value) = fe.read_unc() {
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stats.stat[0].scale = FE_SCALE_COUNTER;
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stats.stat[0].value = i64::from(value);
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}
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Ok(())
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}
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