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Implement AMConfigureMessage from M0 to M4.

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This commit is contained in:
Jared Boone
2016-01-03 14:31:39 -08:00
parent f2f7032615
commit b5aa2b205f
5 changed files with 75 additions and 27 deletions
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64
firmware/baseband/proc_am_audio.cpp
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@@ -21,31 +21,11 @@
#include "proc_am_audio.hpp"
NarrowbandAMAudio::NarrowbandAMAudio() {
constexpr size_t baseband_fs = 3072000;
constexpr size_t decim_0_input_fs = baseband_fs;
constexpr size_t decim_0_decimation_factor = 8;
constexpr size_t decim_0_output_fs = decim_0_input_fs / decim_0_decimation_factor;
constexpr size_t decim_1_input_fs = decim_0_output_fs;
constexpr size_t decim_1_decimation_factor = 8;
constexpr size_t decim_1_output_fs = decim_1_input_fs / decim_1_decimation_factor;
constexpr size_t channel_filter_input_fs = decim_1_output_fs;
constexpr size_t channel_filter_decimation_factor = 1;
constexpr size_t channel_filter_output_fs = channel_filter_input_fs / channel_filter_decimation_factor;
decim_0.configure(taps_6k0_decim_0.taps, 33554432);
decim_1.configure(taps_6k0_decim_1.taps, 131072);
channel_filter.configure(taps_6k0_channel.taps, channel_filter_decimation_factor);
channel_filter_pass_f = taps_6k0_channel.pass_frequency_normalized * channel_filter_input_fs;
channel_filter_stop_f = taps_6k0_channel.stop_frequency_normalized * channel_filter_input_fs;
channel_spectrum.set_decimation_factor(std::floor((channel_filter_output_fs / 2) / ((channel_filter_pass_f + channel_filter_stop_f) / 2)));
}
void NarrowbandAMAudio::execute(const buffer_c8_t& buffer) {
if( !configured ) {
return;
}
std::array<complex16_t, 512> dst;
const buffer_c16_t dst_buffer {
dst.data(),
@@ -73,7 +53,41 @@ void NarrowbandAMAudio::execute(const buffer_c8_t& buffer) {
}
void NarrowbandAMAudio::on_message(const Message* const message) {
if( message->id == Message::ID::UpdateSpectrum ) {
switch(message->id) {
case Message::ID::UpdateSpectrum:
channel_spectrum.update();
break;
case Message::ID::AMConfigure:
configure(*reinterpret_cast<const AMConfigureMessage*>(message));
break;
default:
break;
}
}
void NarrowbandAMAudio::configure(const AMConfigureMessage& message) {
constexpr size_t baseband_fs = 3072000;
constexpr size_t decim_0_input_fs = baseband_fs;
constexpr size_t decim_0_decimation_factor = 8;
constexpr size_t decim_0_output_fs = decim_0_input_fs / decim_0_decimation_factor;
constexpr size_t decim_1_input_fs = decim_0_output_fs;
constexpr size_t decim_1_decimation_factor = 8;
constexpr size_t decim_1_output_fs = decim_1_input_fs / decim_1_decimation_factor;
constexpr size_t channel_filter_input_fs = decim_1_output_fs;
constexpr size_t channel_filter_decimation_factor = 1;
constexpr size_t channel_filter_output_fs = channel_filter_input_fs / channel_filter_decimation_factor;
decim_0.configure(message.decim_0_filter.taps, 33554432);
decim_1.configure(message.decim_1_filter.taps, 131072);
channel_filter.configure(message.channel_filter.taps, channel_filter_decimation_factor);
channel_filter_pass_f = message.channel_filter.pass_frequency_normalized * channel_filter_input_fs;
channel_filter_stop_f = message.channel_filter.stop_frequency_normalized * channel_filter_input_fs;
channel_spectrum.set_decimation_factor(std::floor((channel_filter_output_fs / 2) / ((channel_filter_pass_f + channel_filter_stop_f) / 2)));
configured = true;
}