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[uart] Reuse the ISR pin argument on an ESP8266 software serial reload (#20541)

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Bascht74
2026-10-12 11:52:31 +13:00
committed by Jesse Hills
parent 87187c5391
commit 9e580db434
1 changed files with 5 additions and 2 deletions
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esphome/components/uart/uart_component_esp8266.cpp
+5 -2
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@@ -257,16 +257,19 @@ void ESP8266SoftwareSerial::setup(InternalGPIOPin *tx_pin, InternalGPIOPin *rx_p
this->stop_bits_ = stop_bits;
this->data_bits_ = data_bits;
this->parity_ = parity;
// to_isr() allocates, so call it only for a new or changed pin
if (tx_pin != nullptr) {
if (tx_pin != this->gpio_tx_pin_)
this->tx_pin_ = tx_pin->to_isr();
gpio_tx_pin_ = tx_pin;
gpio_tx_pin_->setup();
tx_pin_ = gpio_tx_pin_->to_isr();
tx_pin_.digital_write(true);
}
if (rx_pin != nullptr) {
if (rx_pin != this->gpio_rx_pin_)
this->rx_pin_ = rx_pin->to_isr();
gpio_rx_pin_ = rx_pin;
gpio_rx_pin_->setup();
rx_pin_ = gpio_rx_pin_->to_isr();
uint8_t *buffer = this->rx_.buffer();
if (this->rx_.buffer_size() != rx_buffer_size) {
delete[] buffer; // NOLINT