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MMDVM
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Reduce CPU load on idle.

master
Jonathan Naylor 2018-02-26 19:37:15 +00:00
parent 23f27cf496
commit 01b3dcc689
2 changed files with 21 additions and 32 deletions
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41
IO.cpp
View File

@ -61,18 +61,16 @@ m_txBuffer(TX_RINGBUFFER_SIZE),
m_rssiBuffer(RX_RINGBUFFER_SIZE),
m_dcFilter(),
m_dcState(),
m_dmrFilter(),
m_rrcFilter(),
m_gaussianFilter(),
m_boxcarFilter(),
m_nxdnFilter(),
m_nxdnISincFilter(),
m_ysfFilter(),
m_dmrState(),
m_rrcState(),
m_gaussianState(),
m_boxcarState(),
m_nxdnState(),
m_nxdnISincState(),
m_ysfState(),
m_pttInvert(false),
m_rxLevel(128 * 128),
m_cwIdTXLevel(128 * 128),
@ -91,12 +89,11 @@ m_dacOverflow(0U),
m_watchdog(0U),
m_lockout(false)
{
::memset(m_dmrState, 0x00U, 70U * sizeof(q15_t));
::memset(m_rrcState, 0x00U, 70U * sizeof(q15_t));
::memset(m_gaussianState, 0x00U, 40U * sizeof(q15_t));
::memset(m_boxcarState, 0x00U, 30U * sizeof(q15_t));
::memset(m_nxdnState, 0x00U, 110U * sizeof(q15_t));
::memset(m_nxdnISincState, 0x00U, 60U * sizeof(q15_t));
::memset(m_ysfState, 0x00U, 70U * sizeof(q15_t));
::memset(m_dcState, 0x00U, 4U * sizeof(q31_t));
m_dcFilter.numStages = DC_FILTER_STAGES;
@ -104,9 +101,9 @@ m_lockout(false)
m_dcFilter.pCoeffs = DC_FILTER;
m_dcFilter.postShift = 0;
m_dmrFilter.numTaps = RRC_0_2_FILTER_LEN;
m_dmrFilter.pState = m_dmrState;
m_dmrFilter.pCoeffs = RRC_0_2_FILTER;
m_rrcFilter.numTaps = RRC_0_2_FILTER_LEN;
m_rrcFilter.pState = m_rrcState;
m_rrcFilter.pCoeffs = RRC_0_2_FILTER;
m_gaussianFilter.numTaps = GAUSSIAN_0_5_FILTER_LEN;
m_gaussianFilter.pState = m_gaussianState;
@ -124,10 +121,6 @@ m_lockout(false)
m_nxdnISincFilter.pState = m_nxdnISincState;
m_nxdnISincFilter.pCoeffs = NXDN_ISINC_FILTER;
m_ysfFilter.numTaps = RRC_0_2_FILTER_LEN;
m_ysfFilter.pState = m_ysfState;
m_ysfFilter.pCoeffs = RRC_0_2_FILTER;
initInt();
selfTest();
@ -349,21 +342,19 @@ void CIO::process()
nxdnRX.samples(NXDNVals, rssi, RX_BLOCK_SIZE);
}
if (m_ysfEnable) {
q15_t YSFVals[RX_BLOCK_SIZE];
::arm_fir_fast_q15(&m_ysfFilter, dcSamples, YSFVals, RX_BLOCK_SIZE);
if (m_dmrEnable || m_ysfEnable) {
q15_t RRCVals[RX_BLOCK_SIZE];
::arm_fir_fast_q15(&m_rrcFilter, samples, RRCVals, RX_BLOCK_SIZE);
ysfRX.samples(YSFVals, rssi, RX_BLOCK_SIZE);
}
if (m_ysfEnable)
ysfRX.samples(RRCVals, rssi, RX_BLOCK_SIZE);
if (m_dmrEnable) {
q15_t DMRVals[RX_BLOCK_SIZE];
::arm_fir_fast_q15(&m_dmrFilter, samples, DMRVals, RX_BLOCK_SIZE);
if (m_duplex)
dmrIdleRX.samples(DMRVals, RX_BLOCK_SIZE);
dmrIdleRX.samples(RRCVals, RX_BLOCK_SIZE);
else
dmrDMORX.samples(DMRVals, rssi, RX_BLOCK_SIZE);
dmrDMORX.samples(RRCVals, rssi, RX_BLOCK_SIZE);
}
}
} else if (m_modemState == STATE_DSTAR) {
if (m_dstarEnable) {
@ -375,7 +366,7 @@ void CIO::process()
} else if (m_modemState == STATE_DMR) {
if (m_dmrEnable) {
q15_t DMRVals[RX_BLOCK_SIZE];
::arm_fir_fast_q15(&m_dmrFilter, samples, DMRVals, RX_BLOCK_SIZE);
::arm_fir_fast_q15(&m_rrcFilter, samples, DMRVals, RX_BLOCK_SIZE);
if (m_duplex) {
// If the transmitter isn't on, use the DMR idle RX to detect the wakeup CSBKs
@ -390,7 +381,7 @@ void CIO::process()
} else if (m_modemState == STATE_YSF) {
if (m_ysfEnable) {
q15_t YSFVals[RX_BLOCK_SIZE];
::arm_fir_fast_q15(&m_ysfFilter, dcSamples, YSFVals, RX_BLOCK_SIZE);
::arm_fir_fast_q15(&m_rrcFilter, dcSamples, YSFVals, RX_BLOCK_SIZE);
ysfRX.samples(YSFVals, rssi, RX_BLOCK_SIZE);
}

6
IO.h
View File

@ -66,18 +66,16 @@ private:
arm_biquad_casd_df1_inst_q31 m_dcFilter;
q31_t m_dcState[4];
arm_fir_instance_q15 m_dmrFilter;
arm_fir_instance_q15 m_rrcFilter;
arm_fir_instance_q15 m_gaussianFilter;
arm_fir_instance_q15 m_boxcarFilter;
arm_fir_instance_q15 m_nxdnFilter;
arm_fir_instance_q15 m_nxdnISincFilter;
arm_fir_instance_q15 m_ysfFilter;
q15_t m_dmrState[70U]; // NoTaps + BlockSize - 1, 42 + 20 - 1 plus some spare
q15_t m_rrcState[70U]; // NoTaps + BlockSize - 1, 42 + 20 - 1 plus some spare
q15_t m_gaussianState[40U]; // NoTaps + BlockSize - 1, 12 + 20 - 1 plus some spare
q15_t m_boxcarState[30U]; // NoTaps + BlockSize - 1, 6 + 20 - 1 plus some spare
q15_t m_nxdnState[110U]; // NoTaps + BlockSize - 1, 82 + 20 - 1 plus some spare
q15_t m_nxdnISincState[60U]; // NoTaps + BlockSize - 1, 32 + 20 - 1 plus some spare
q15_t m_ysfState[70U]; // NoTaps + BlockSize - 1, 42 + 20 - 1 plus some spare
bool m_pttInvert;
q15_t m_rxLevel;