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Add GPIO_DETECT_PA portduino config, and support 13302 detection with it.

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This commit is contained in:
Jonathan Bennett
2026-02-24 16:45:06 -06:00
parent cac45d9ced
commit 6b34d72fba
5 changed files with 38 additions and 5 deletions
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src/platform/portduino/PortduinoGlue.cpp
+26
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@@ -537,6 +537,27 @@ void portduinoSetup()
}
}
// In one test, this dance seemed necessary to trigger the pin to detect properly.
if (portduino_config.has_gpio_detect_pa) {
pinMode(portduino_config.lora_pa_detect_pin.pin, INPUT_PULLDOWN);
sleep(1);
if (digitalRead(portduino_config.lora_pa_detect_pin.pin) == LOW) {
std::cout << "Pin " << portduino_config.lora_pa_detect_pin.pin << " PULLDOWN is LOW" << std::endl;
}
pinMode(portduino_config.lora_pa_detect_pin.pin, INPUT_PULLUP);
sleep(1);
if (digitalRead(portduino_config.lora_pa_detect_pin.pin) == HIGH) {
std::cout << "Pin " << portduino_config.lora_pa_detect_pin.pin << " PULLUP is HIGH, dropping PA curve" << std::endl;
portduino_config.num_pa_points = 1;
portduino_config.tx_gain_lora[0] = 0;
} else {
std::cout << "Pin " << portduino_config.lora_pa_detect_pin.pin << " PULLUP is LOW, using PA curve" << std::endl;
}
// disable bias once finished
pinMode(portduino_config.lora_pa_detect_pin.pin, INPUT);
}
// Only initialize the radio pins when dealing with real, kernel controlled SPI hardware
if (portduino_config.lora_spi_dev != "" && portduino_config.lora_spi_dev != "ch341") {
SPI.begin(portduino_config.lora_spi_dev.c_str());
@@ -660,6 +681,11 @@ bool loadConfig(const char *configPath)
portduino_config.lr1120_max_power = yamlConfig["Lora"]["LR1120_MAX_POWER"].as<int>(13);
if (yamlConfig["Lora"]["RF95_MAX_POWER"])
portduino_config.rf95_max_power = yamlConfig["Lora"]["RF95_MAX_POWER"].as<int>(20);
if (yamlConfig["Lora"]["GPIO_DETECT_PA"]) {
portduino_config.has_gpio_detect_pa = true;
portduino_config.gpio_detect_pa = yamlConfig["Lora"]["GPIO_DETECT_PA"].as<int>(0);
portduino_config.lora_pa_detect_pin.pin = portduino_config.gpio_detect_pa;
}
if (yamlConfig["Lora"]["TX_GAIN_LORA"]) {
YAML::Node tx_gain_node = yamlConfig["Lora"]["TX_GAIN_LORA"];