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Fixed Sonde RSSI "Beep" (#2012)

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This commit is contained in:
Mark Thompson
2024-03-19 04:53:55 -05:00
committed by GitHub
parent b53c8e1f80
commit 74442f197d
7 changed files with 40 additions and 164 deletions
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15
firmware/baseband/audio_dma.cpp
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@@ -25,9 +25,11 @@
#include <cstdint>
#include <cstddef>
#include <array>
#include <cstring>
#include "hal.h"
#include "gpdma.hpp"
#include "tone_gen.hpp"
using namespace lpc43xx;
@@ -36,6 +38,8 @@ using namespace lpc43xx;
namespace audio {
namespace dma {
ToneGen tone_gen{};
constexpr uint32_t gpdma_ahb_master_peripheral = 1;
constexpr uint32_t gpdma_ahb_master_memory = 0;
constexpr uint32_t gpdma_ahb_master_lli_fetch = 0;
@@ -229,6 +233,17 @@ void shrink_tx_buffer(bool shrink) {
lli_tx_loop[0].lli = lli_pointer(&lli_tx_loop[1]);
}
void beep_start(uint32_t freq, uint32_t sample_rate) {
tone_gen.configure_beep(freq, sample_rate);
for (size_t i = 0; i < buffer_samples; i++)
buffer_tx[i].left = buffer_tx[i].right = tone_gen.process_beep();
}
void beep_stop() {
memset(&buffer_tx, 0, buffer_bytes);
}
buffer_t tx_empty_buffer() {
const auto next_lli = tx_next_lli;
if (next_lli) {