mirror of
https://github.com/esphome/esphome.git
synced 2024-12-02 19:54:14 +01:00
186 lines
6 KiB
C++
186 lines
6 KiB
C++
#ifdef USE_ESP32_FRAMEWORK_ARDUINO
|
||
#include "esphome/core/application.h"
|
||
#include "esphome/core/defines.h"
|
||
#include "esphome/core/helpers.h"
|
||
#include "esphome/core/log.h"
|
||
#include "uart_component_esp32_arduino.h"
|
||
|
||
#ifdef USE_LOGGER
|
||
#include "esphome/components/logger/logger.h"
|
||
#endif
|
||
|
||
namespace esphome {
|
||
namespace uart {
|
||
static const char *const TAG = "uart.arduino_esp32";
|
||
|
||
static const uint32_t UART_PARITY_EVEN = 0 << 0;
|
||
static const uint32_t UART_PARITY_ODD = 1 << 0;
|
||
static const uint32_t UART_PARITY_ENABLE = 1 << 1;
|
||
static const uint32_t UART_NB_BIT_5 = 0 << 2;
|
||
static const uint32_t UART_NB_BIT_6 = 1 << 2;
|
||
static const uint32_t UART_NB_BIT_7 = 2 << 2;
|
||
static const uint32_t UART_NB_BIT_8 = 3 << 2;
|
||
static const uint32_t UART_NB_STOP_BIT_1 = 1 << 4;
|
||
static const uint32_t UART_NB_STOP_BIT_2 = 3 << 4;
|
||
static const uint32_t UART_TICK_APB_CLOCK = 1 << 27;
|
||
|
||
uint32_t ESP32ArduinoUARTComponent::get_config() {
|
||
uint32_t config = 0;
|
||
|
||
/*
|
||
* All bits numbers below come from
|
||
* framework-arduinoespressif32/cores/esp32/esp32-hal-uart.h
|
||
* And more specifically conf0 union in uart_dev_t.
|
||
*
|
||
* Below is bit used from conf0 union.
|
||
* <name>:<bits position> <values>
|
||
* parity:0 0:even 1:odd
|
||
* parity_en:1 Set this bit to enable uart parity check.
|
||
* bit_num:2-4 0:5bits 1:6bits 2:7bits 3:8bits
|
||
* stop_bit_num:4-6 stop bit. 1:1bit 2:1.5bits 3:2bits
|
||
* tick_ref_always_on:27 select the clock.1：apb clock：ref_tick
|
||
*/
|
||
|
||
if (this->parity_ == UART_CONFIG_PARITY_EVEN) {
|
||
config |= UART_PARITY_EVEN | UART_PARITY_ENABLE;
|
||
} else if (this->parity_ == UART_CONFIG_PARITY_ODD) {
|
||
config |= UART_PARITY_ODD | UART_PARITY_ENABLE;
|
||
}
|
||
|
||
switch (this->data_bits_) {
|
||
case 5:
|
||
config |= UART_NB_BIT_5;
|
||
break;
|
||
case 6:
|
||
config |= UART_NB_BIT_6;
|
||
break;
|
||
case 7:
|
||
config |= UART_NB_BIT_7;
|
||
break;
|
||
case 8:
|
||
config |= UART_NB_BIT_8;
|
||
break;
|
||
}
|
||
|
||
if (this->stop_bits_ == 1) {
|
||
config |= UART_NB_STOP_BIT_1;
|
||
} else {
|
||
config |= UART_NB_STOP_BIT_2;
|
||
}
|
||
|
||
config |= UART_TICK_APB_CLOCK;
|
||
|
||
return config;
|
||
}
|
||
|
||
void ESP32ArduinoUARTComponent::setup() {
|
||
ESP_LOGCONFIG(TAG, "Setting up UART...");
|
||
// Use Arduino HardwareSerial UARTs if all used pins match the ones
|
||
// preconfigured by the platform. For example if RX disabled but TX pin
|
||
// is 1 we still want to use Serial.
|
||
bool is_default_tx, is_default_rx;
|
||
#ifdef CONFIG_IDF_TARGET_ESP32C3
|
||
is_default_tx = tx_pin_ == nullptr || tx_pin_->get_pin() == 21;
|
||
is_default_rx = rx_pin_ == nullptr || rx_pin_->get_pin() == 20;
|
||
#else
|
||
is_default_tx = tx_pin_ == nullptr || tx_pin_->get_pin() == 1;
|
||
is_default_rx = rx_pin_ == nullptr || rx_pin_->get_pin() == 3;
|
||
#endif
|
||
static uint8_t next_uart_num = 0;
|
||
if (is_default_tx && is_default_rx && next_uart_num == 0) {
|
||
this->hw_serial_ = &Serial;
|
||
next_uart_num++;
|
||
} else {
|
||
#ifdef USE_LOGGER
|
||
// The logger doesn't use this UART component, instead it targets the UARTs
|
||
// directly (i.e. Serial/Serial0, Serial1, and Serial2). If the logger is
|
||
// enabled, skip the UART that it is configured to use.
|
||
if (logger::global_logger->get_baud_rate() > 0 && logger::global_logger->get_uart() == next_uart_num) {
|
||
next_uart_num++;
|
||
}
|
||
#endif // USE_LOGGER
|
||
|
||
if (next_uart_num >= UART_NUM_MAX) {
|
||
ESP_LOGW(TAG, "Maximum number of UART components created already.");
|
||
this->mark_failed();
|
||
return;
|
||
}
|
||
|
||
this->number_ = next_uart_num;
|
||
this->hw_serial_ = new HardwareSerial(next_uart_num++); // NOLINT(cppcoreguidelines-owning-memory)
|
||
}
|
||
int8_t tx = this->tx_pin_ != nullptr ? this->tx_pin_->get_pin() : -1;
|
||
int8_t rx = this->rx_pin_ != nullptr ? this->rx_pin_->get_pin() : -1;
|
||
bool invert = false;
|
||
if (tx_pin_ != nullptr && tx_pin_->is_inverted())
|
||
invert = true;
|
||
if (rx_pin_ != nullptr && rx_pin_->is_inverted())
|
||
invert = true;
|
||
this->hw_serial_->setRxBufferSize(this->rx_buffer_size_);
|
||
this->hw_serial_->begin(this->baud_rate_, get_config(), rx, tx, invert);
|
||
}
|
||
|
||
void ESP32ArduinoUARTComponent::dump_config() {
|
||
ESP_LOGCONFIG(TAG, "UART Bus %d:", this->number_);
|
||
LOG_PIN(" TX Pin: ", tx_pin_);
|
||
LOG_PIN(" RX Pin: ", rx_pin_);
|
||
if (this->rx_pin_ != nullptr) {
|
||
ESP_LOGCONFIG(TAG, " RX Buffer Size: %u", this->rx_buffer_size_);
|
||
}
|
||
ESP_LOGCONFIG(TAG, " Baud Rate: %u baud", this->baud_rate_);
|
||
ESP_LOGCONFIG(TAG, " Data Bits: %u", this->data_bits_);
|
||
ESP_LOGCONFIG(TAG, " Parity: %s", LOG_STR_ARG(parity_to_str(this->parity_)));
|
||
ESP_LOGCONFIG(TAG, " Stop bits: %u", this->stop_bits_);
|
||
this->check_logger_conflict();
|
||
}
|
||
|
||
void ESP32ArduinoUARTComponent::write_array(const uint8_t *data, size_t len) {
|
||
this->hw_serial_->write(data, len);
|
||
#ifdef USE_UART_DEBUGGER
|
||
for (size_t i = 0; i < len; i++) {
|
||
this->debug_callback_.call(UART_DIRECTION_TX, data[i]);
|
||
}
|
||
#endif
|
||
}
|
||
|
||
bool ESP32ArduinoUARTComponent::peek_byte(uint8_t *data) {
|
||
if (!this->check_read_timeout_())
|
||
return false;
|
||
*data = this->hw_serial_->peek();
|
||
return true;
|
||
}
|
||
|
||
bool ESP32ArduinoUARTComponent::read_array(uint8_t *data, size_t len) {
|
||
if (!this->check_read_timeout_(len))
|
||
return false;
|
||
this->hw_serial_->readBytes(data, len);
|
||
#ifdef USE_UART_DEBUGGER
|
||
for (size_t i = 0; i < len; i++) {
|
||
this->debug_callback_.call(UART_DIRECTION_RX, data[i]);
|
||
}
|
||
#endif
|
||
return true;
|
||
}
|
||
|
||
int ESP32ArduinoUARTComponent::available() { return this->hw_serial_->available(); }
|
||
void ESP32ArduinoUARTComponent::flush() {
|
||
ESP_LOGVV(TAG, " Flushing...");
|
||
this->hw_serial_->flush();
|
||
}
|
||
|
||
void ESP32ArduinoUARTComponent::check_logger_conflict() {
|
||
#ifdef USE_LOGGER
|
||
if (this->hw_serial_ == nullptr || logger::global_logger->get_baud_rate() == 0) {
|
||
return;
|
||
}
|
||
|
||
if (this->hw_serial_ == logger::global_logger->get_hw_serial()) {
|
||
ESP_LOGW(TAG, " You're using the same serial port for logging and the UART component. Please "
|
||
"disable logging over the serial port by setting logger->baud_rate to 0.");
|
||
}
|
||
#endif
|
||
}
|
||
|
||
} // namespace uart
|
||
} // namespace esphome
|
||
#endif // USE_ESP32_FRAMEWORK_ARDUINO
|