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jLynx 2023-05-19 08:16:05 +12:00 • committed by GitHub
parent 7aca7ce74d
commit 033c4e9a5b
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54
firmware/application/tuning.cpp
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@ -29,54 +29,52 @@ namespace config {
namespace {
constexpr rf::Frequency low_band_second_lo_frequency(const rf::Frequency target_frequency) {
return 2650000000 - (target_frequency / 7);
return 2650000000 - (target_frequency / 7);
}
constexpr rf::Frequency high_band_second_lo_regions_2_and_3(const rf::Frequency target_frequency) {
return (target_frequency < 5100000000)
? (2350000000 + ((target_frequency - 3600000000) / 5))
: (2500000000 + ((target_frequency - 5100000000) / 9))
;
return (target_frequency < 5100000000)
? (2350000000 + ((target_frequency - 3600000000) / 5))
: (2500000000 + ((target_frequency - 5100000000) / 9));
}
constexpr rf::Frequency high_band_second_lo_frequency(const rf::Frequency target_frequency) {
return (target_frequency < 3600000000)
? (2170000000 + (((target_frequency - 2740000000) * 57) / 86))
: high_band_second_lo_regions_2_and_3(target_frequency)
;
return (target_frequency < 3600000000)
? (2170000000 + (((target_frequency - 2740000000) * 57) / 86))
: high_band_second_lo_regions_2_and_3(target_frequency);
}
Config low_band(const rf::Frequency target_frequency) {
const rf::Frequency first_lo_frequency = target_frequency + low_band_second_lo_frequency(target_frequency);
const rf::Frequency second_lo_frequency = first_lo_frequency - target_frequency;
const bool mixer_invert = true;
return { first_lo_frequency, second_lo_frequency, rf::path::Band::Low, mixer_invert };
const rf::Frequency first_lo_frequency = target_frequency + low_band_second_lo_frequency(target_frequency);
const rf::Frequency second_lo_frequency = first_lo_frequency - target_frequency;
const bool mixer_invert = true;
return {first_lo_frequency, second_lo_frequency, rf::path::Band::Low, mixer_invert};
}
Config mid_band(const rf::Frequency target_frequency) {
return { 0, target_frequency, rf::path::Band::Mid, false };
return {0, target_frequency, rf::path::Band::Mid, false};
}
Config high_band(const rf::Frequency target_frequency) {
const rf::Frequency first_lo_frequency = target_frequency - high_band_second_lo_frequency(target_frequency);
const rf::Frequency second_lo_frequency = target_frequency - first_lo_frequency;
const bool mixer_invert = false;
return { first_lo_frequency, second_lo_frequency, rf::path::Band::High, mixer_invert };
const rf::Frequency first_lo_frequency = target_frequency - high_band_second_lo_frequency(target_frequency);
const rf::Frequency second_lo_frequency = target_frequency - first_lo_frequency;
const bool mixer_invert = false;
return {first_lo_frequency, second_lo_frequency, rf::path::Band::High, mixer_invert};
}
} /* namespace */
Config create(const rf::Frequency target_frequency) {
/* TODO: This is some lame code. */
if( rf::path::band_low.contains(target_frequency) ) {
return low_band(target_frequency);
} else if( rf::path::band_mid.contains(target_frequency) ) {
return mid_band(target_frequency);
} else if( rf::path::band_high.contains(target_frequency) ) {
return high_band(target_frequency);
} else {
return { };
}
/* TODO: This is some lame code. */
if (rf::path::band_low.contains(target_frequency)) {
return low_band(target_frequency);
} else if (rf::path::band_mid.contains(target_frequency)) {
return mid_band(target_frequency);
} else if (rf::path::band_high.contains(target_frequency)) {
return high_band(target_frequency);
} else {
return {};
}
}
} /* namespace config */