142 lines
4.0 KiB
C++
142 lines
4.0 KiB
C++
#include "Sx1262.h"
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#include <cstring>
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#include "hal/gpio_hal.h"
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constexpr const char* TAG = "Sx1262";
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void IRAM_ATTR dio1handler(void* context) {
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((Sx1262*)context)->setRxEvent();
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}
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bool Sx1262::configure(const Parameter parameter, const float value) {
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using enum Parameter;
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switch (parameter) {
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case Power:
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power = value;
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return true;
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case Frequency:
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frequency = value;
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return true;
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case Bandwidth:
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bandwidth = value;
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return true;
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case SpreadFactor:
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spreadFactor = value;
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return true;
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case CodingRate:
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codingRate = value;
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return true;
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case SyncWord:
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syncWord = value;
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return true;
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case PreambleLength:
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preambleLength = value;
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return true;
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case DataRate:
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bitRate = value;
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return true;
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case FrequencyDeviation:
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frequencyDeviation = value;
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return true;
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default:
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break;
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}
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return false;
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}
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void Sx1262::registerDio1Isr() {
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// We cannot use the RadioLib API to register this action,
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// as it does not have the capability to pass an instance pointer via context.
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// A trampoline has been tried, but is not linkable to be in IRAM_ATTR (dangerous relocation).
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gpio_install_isr_service((int)ESP_INTR_FLAG_IRAM);
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gpio_set_intr_type(configuration.irqPin, GPIO_INTR_POSEDGE);
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gpio_isr_handler_add(configuration.irqPin, dio1handler, this);
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}
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void Sx1262::unregisterDio1Isr() {
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gpio_isr_handler_remove(configuration.irqPin);
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gpio_wakeup_disable(configuration.irqPin);
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gpio_set_intr_type(configuration.irqPin, GPIO_INTR_DISABLE);
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}
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int32_t Sx1262::threadMain(const Modulation modulation) {
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uint16_t rc = RADIOLIB_ERR_NONE;
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if (modulation == Modulation::LoRa) {
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rc = radio.begin(
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frequency,
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bandwidth,
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spreadFactor,
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codingRate,
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syncWord,
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power,
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preambleLength,
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configuration.tcxoVoltage,
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configuration.useRegulatorLdo
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);
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} else if (modulation == Modulation::Fsk) {
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rc = radio.beginFSK(
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frequency,
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bitRate,
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frequencyDeviation,
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bandwidth,
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power,
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preambleLength,
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configuration.tcxoVoltage,
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configuration.useRegulatorLdo
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);
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} else {
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TT_LOG_E(TAG, "SX1262 not capable of modulation \"%s\"", toString(modulation));
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setState(State::Error);
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return -1;
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}
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if (rc != RADIOLIB_ERR_NONE) {
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TT_LOG_E(TAG, "Radiolib init failed with code %hi", rc);
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setState(State::Error);
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return -1;
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}
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setState(State::On);
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TT_LOG_I(TAG, "SX1262 device ready to receive!");
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while (!isThreadInterrupted()) {
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radio.startReceive();
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getEventFlag().wait(RADIO_TERMINATE_BIT, RADIO_RECEIVED_BIT);
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// Thread might've been interrupted in the meanwhile
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if (isThreadInterrupted()) {
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break;
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}
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uint16_t rxSize = radio.getPacketLength(true);
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uint8_t *dataBuffer = new uint8_t[rxSize];
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uint16_t rc = radio.readData(dataBuffer, rxSize);
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if (rc != RADIOLIB_ERR_NONE) {
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TT_LOG_E(TAG, "Error receiving data, RadioLib returned %hi", rc);
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} else {
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float rssi = radio.getRSSI();
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float snr = radio.getSNR();
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TT_LOG_I(TAG, "LoRa RX size=%d RSSI=%f SNR=%f", rxSize, rssi, snr);
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std::string message((char*)dataBuffer, rxSize);
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TT_LOG_I(TAG, "msg=%s", message.c_str());
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auto rxPacket = tt::hal::radio::RxPacket {
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.data = dataBuffer,
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.size = rxSize,
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.rssi = rssi,
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.snr = snr
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};
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publishRx(rxPacket);
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}
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delete[] dataBuffer;
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}
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return 0;
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}
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