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esphome/esphome/components/logger/logger.cpp

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#include "logger.h"
#include <cinttypes>
#ifdef USE_ESP_IDF
#include <driver/uart.h>
#include "freertos/FreeRTOS.h"
#include "esp_idf_version.h"
#endif // USE_ESP_IDF
#if defined(USE_ESP32_FRAMEWORK_ARDUINO) || defined(USE_ESP_IDF)
#include <esp_log.h>
#endif // USE_ESP32_FRAMEWORK_ARDUINO || USE_ESP_IDF
#include "esphome/core/hal.h"
#include "esphome/core/log.h"
namespace esphome {
namespace logger {
static const char *const TAG = "logger";
static const char *const LOG_LEVEL_COLORS[] = {
"", // NONE
ESPHOME_LOG_BOLD(ESPHOME_LOG_COLOR_RED), // ERROR
ESPHOME_LOG_COLOR(ESPHOME_LOG_COLOR_YELLOW), // WARNING
ESPHOME_LOG_COLOR(ESPHOME_LOG_COLOR_GREEN), // INFO
ESPHOME_LOG_COLOR(ESPHOME_LOG_COLOR_MAGENTA), // CONFIG
ESPHOME_LOG_COLOR(ESPHOME_LOG_COLOR_CYAN), // DEBUG
ESPHOME_LOG_COLOR(ESPHOME_LOG_COLOR_GRAY), // VERBOSE
ESPHOME_LOG_COLOR(ESPHOME_LOG_COLOR_WHITE), // VERY_VERBOSE
};
static const char *const LOG_LEVEL_LETTERS[] = {
"", // NONE
"E", // ERROR
"W", // WARNING
"I", // INFO
"C", // CONFIG
"D", // DEBUG
"V", // VERBOSE
"VV", // VERY_VERBOSE
};
void Logger::write_header_(int level, const char *tag, int line) {
if (level < 0)
level = 0;
if (level > 7)
level = 7;
const char *color = LOG_LEVEL_COLORS[level];
const char *letter = LOG_LEVEL_LETTERS[level];
this->printf_to_buffer_("%s[%s][%s:%03u]: ", color, letter, tag, line);
}
void HOT Logger::log_vprintf_(int level, const char *tag, int line, const char *format, va_list args) { // NOLINT
if (level > this->level_for(tag) || recursion_guard_)
return;
recursion_guard_ = true;
this->reset_buffer_();
this->write_header_(level, tag, line);
this->vprintf_to_buffer_(format, args);
this->write_footer_();
this->log_message_(level, tag);
recursion_guard_ = false;
}
#ifdef USE_STORE_LOG_STR_IN_FLASH
void Logger::log_vprintf_(int level, const char *tag, int line, const __FlashStringHelper *format,
va_list args) { // NOLINT
if (level > this->level_for(tag) || recursion_guard_)
return;
recursion_guard_ = true;
this->reset_buffer_();
// copy format string
auto *format_pgm_p = reinterpret_cast<const uint8_t *>(format);
size_t len = 0;
char ch = '.';
while (!this->is_buffer_full_() && ch != '\0') {
this->tx_buffer_[this->tx_buffer_at_++] = ch = (char) progmem_read_byte(format_pgm_p++);
}
// Buffer full form copying format
if (this->is_buffer_full_())
return;
// length of format string, includes null terminator
uint32_t offset = this->tx_buffer_at_;
// now apply vsnprintf
this->write_header_(level, tag, line);
this->vprintf_to_buffer_(this->tx_buffer_, args);
this->write_footer_();
this->log_message_(level, tag, offset);
recursion_guard_ = false;
}
#endif
int HOT Logger::level_for(const char *tag) {
// Uses std::vector<> for low memory footprint, though the vector
// could be sorted to minimize lookup times. This feature isn't used that
// much anyway so it doesn't matter too much.
for (auto &it : this->log_levels_) {
if (it.tag == tag) {
return it.level;
}
}
return ESPHOME_LOG_LEVEL;
}
void HOT Logger::log_message_(int level, const char *tag, int offset) {
// remove trailing newline
if (this->tx_buffer_[this->tx_buffer_at_ - 1] == '\n') {
this->tx_buffer_at_--;
}
// make sure null terminator is present
this->set_null_terminator_();
const char *msg = this->tx_buffer_ + offset;
if (this->baud_rate_ > 0) {
#ifdef USE_ARDUINO
this->hw_serial_->println(msg);
#endif // USE_ARDUINO
#ifdef USE_ESP_IDF
if (
#if defined(USE_ESP32_VARIANT_ESP32S2)
uart_ == UART_SELECTION_USB_CDC
#elif defined(USE_ESP32_VARIANT_ESP32C3) || defined(USE_ESP32_VARIANT_ESP32C6)
uart_ == UART_SELECTION_USB_SERIAL_JTAG
#elif defined(USE_ESP32_VARIANT_ESP32S3)
uart_ == UART_SELECTION_USB_CDC || uart_ == UART_SELECTION_USB_SERIAL_JTAG
#else
/* DISABLES CODE */ (false) // NOLINT
#endif
) {
puts(msg);
} else {
uart_write_bytes(uart_num_, msg, strlen(msg));
uart_write_bytes(uart_num_, "\n", 1);
}
#endif
}
#ifdef USE_ESP32
// Suppress network-logging if memory constrained, but still log to serial
// ports. In some configurations (eg BLE enabled) there may be some transient
// memory exhaustion, and trying to log when OOM can lead to a crash. Skipping
// here usually allows the stack to recover instead.
// See issue #1234 for analysis.
if (xPortGetFreeHeapSize() < 2048)
return;
#endif
#ifdef USE_HOST
puts(msg);
#endif
this->log_callback_.call(level, tag, msg);
}
Logger::Logger(uint32_t baud_rate, size_t tx_buffer_size) : baud_rate_(baud_rate), tx_buffer_size_(tx_buffer_size) {
// add 1 to buffer size for null terminator
this->tx_buffer_ = new char[this->tx_buffer_size_ + 1]; // NOLINT
}
#ifndef USE_LIBRETINY
void Logger::pre_setup() {
if (this->baud_rate_ > 0) {
#ifdef USE_ARDUINO
switch (this->uart_) {
case UART_SELECTION_UART0:
#ifdef USE_ESP8266
case UART_SELECTION_UART0_SWAP:
#endif
#ifdef USE_RP2040
this->hw_serial_ = &Serial1;
Serial1.begin(this->baud_rate_);
#else
this->hw_serial_ = &Serial;
Serial.begin(this->baud_rate_);
#endif
#ifdef USE_ESP8266
if (this->uart_ == UART_SELECTION_UART0_SWAP) {
Serial.swap();
}
Serial.setDebugOutput(ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE);
#endif
break;
case UART_SELECTION_UART1:
#ifdef USE_RP2040
this->hw_serial_ = &Serial2;
Serial2.begin(this->baud_rate_);
#else
this->hw_serial_ = &Serial1;
Serial1.begin(this->baud_rate_);
#endif
#ifdef USE_ESP8266
Serial1.setDebugOutput(ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE);
#endif
break;
#if defined(USE_ESP32) && !defined(USE_ESP32_VARIANT_ESP32C3) && !defined(USE_ESP32_VARIANT_ESP32C6) && \
!defined(USE_ESP32_VARIANT_ESP32S2) && !defined(USE_ESP32_VARIANT_ESP32S3)
case UART_SELECTION_UART2:
this->hw_serial_ = &Serial2;
Serial2.begin(this->baud_rate_);
break;
#endif
#ifdef USE_RP2040
case UART_SELECTION_USB_CDC:
this->hw_serial_ = &Serial;
Serial.begin(this->baud_rate_);
break;
#endif
}
#endif // USE_ARDUINO
#ifdef USE_ESP_IDF
uart_num_ = UART_NUM_0;
switch (uart_) {
case UART_SELECTION_UART0:
uart_num_ = UART_NUM_0;
break;
case UART_SELECTION_UART1:
uart_num_ = UART_NUM_1;
break;
#if !defined(USE_ESP32_VARIANT_ESP32C3) && !defined(USE_ESP32_VARIANT_ESP32C6) && \
!defined(USE_ESP32_VARIANT_ESP32S2) && !defined(USE_ESP32_VARIANT_ESP32S3)
case UART_SELECTION_UART2:
uart_num_ = UART_NUM_2;
break;
#endif // !USE_ESP32_VARIANT_ESP32C3 && !USE_ESP32_VARIANT_ESP32S2 && !USE_ESP32_VARIANT_ESP32S3
#if defined(USE_ESP32_VARIANT_ESP32S2) || defined(USE_ESP32_VARIANT_ESP32S3)
case UART_SELECTION_USB_CDC:
uart_num_ = -1;
break;
#endif // USE_ESP32_VARIANT_ESP32S2 || USE_ESP32_VARIANT_ESP32S3
#if defined(USE_ESP32_VARIANT_ESP32C3) || defined(USE_ESP32_VARIANT_ESP32C6) || defined(USE_ESP32_VARIANT_ESP32S3)
case UART_SELECTION_USB_SERIAL_JTAG:
uart_num_ = -1;
break;
#endif // USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C6 || USE_ESP32_VARIANT_ESP32S3
}
if (uart_num_ >= 0) {
uart_config_t uart_config{};
uart_config.baud_rate = (int) baud_rate_;
uart_config.data_bits = UART_DATA_8_BITS;
uart_config.parity = UART_PARITY_DISABLE;
uart_config.stop_bits = UART_STOP_BITS_1;
uart_config.flow_ctrl = UART_HW_FLOWCTRL_DISABLE;
#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)
uart_config.source_clk = UART_SCLK_DEFAULT;
#endif
uart_param_config(uart_num_, &uart_config);
const int uart_buffer_size = tx_buffer_size_;
// Install UART driver using an event queue here
uart_driver_install(uart_num_, uart_buffer_size, uart_buffer_size, 10, nullptr, 0);
}
#endif // USE_ESP_IDF
}
#ifdef USE_ESP8266
else {
uart_set_debug(UART_NO);
}
#endif // USE_ESP8266
global_logger = this;
#if defined(USE_ESP_IDF) || defined(USE_ESP32_FRAMEWORK_ARDUINO)
esp_log_set_vprintf(esp_idf_log_vprintf_);
if (ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE) {
esp_log_level_set("*", ESP_LOG_VERBOSE);
}
#endif // USE_ESP_IDF || USE_ESP32_FRAMEWORK_ARDUINO
ESP_LOGI(TAG, "Log initialized");
}
#else // USE_LIBRETINY
void Logger::pre_setup() {
if (this->baud_rate_ > 0) {
switch (this->uart_) {
#if LT_HW_UART0
case UART_SELECTION_UART0:
this->hw_serial_ = &Serial0;
Serial0.begin(this->baud_rate_);
break;
#endif
#if LT_HW_UART1
case UART_SELECTION_UART1:
this->hw_serial_ = &Serial1;
Serial1.begin(this->baud_rate_);
break;
#endif
#if LT_HW_UART2
case UART_SELECTION_UART2:
this->hw_serial_ = &Serial2;
Serial2.begin(this->baud_rate_);
break;
#endif
default:
this->hw_serial_ = &Serial;
Serial.begin(this->baud_rate_);
if (this->uart_ != UART_SELECTION_DEFAULT) {
ESP_LOGW(TAG, " The chosen logger UART port is not available on this board."
"The default port was used instead.");
}
break;
}
// change lt_log() port to match default Serial
if (this->uart_ == UART_SELECTION_DEFAULT) {
this->uart_ = (UARTSelection) (LT_UART_DEFAULT_SERIAL + 1);
lt_log_set_port(LT_UART_DEFAULT_SERIAL);
} else {
lt_log_set_port(this->uart_ - 1);
}
}
global_logger = this;
ESP_LOGI(TAG, "Log initialized");
}
#endif // USE_LIBRETINY
void Logger::set_baud_rate(uint32_t baud_rate) { this->baud_rate_ = baud_rate; }
void Logger::set_log_level(const std::string &tag, int log_level) {
this->log_levels_.push_back(LogLevelOverride{tag, log_level});
}
#if defined(USE_ESP32) || defined(USE_ESP8266) || defined(USE_RP2040) || defined(USE_LIBRETINY)
UARTSelection Logger::get_uart() const { return this->uart_; }
#endif
void Logger::add_on_log_callback(std::function<void(int, const char *, const char *)> &&callback) {
this->log_callback_.add(std::move(callback));
}
float Logger::get_setup_priority() const { return setup_priority::BUS + 500.0f; }
const char *const LOG_LEVELS[] = {"NONE", "ERROR", "WARN", "INFO", "CONFIG", "DEBUG", "VERBOSE", "VERY_VERBOSE"};
#ifdef USE_ESP32
const char *const UART_SELECTIONS[] = {
"UART0", "UART1",
#if !defined(USE_ESP32_VARIANT_ESP32C3) && !defined(USE_ESP32_VARIANT_ESP32C6) && \
!defined(USE_ESP32_VARIANT_ESP32S2) && !defined(USE_ESP32_VARIANT_ESP32S3)
"UART2",
#endif // !USE_ESP32_VARIANT_ESP32C3 && !USE_ESP32_VARIANT_ESP32S2 && !USE_ESP32_VARIANT_ESP32S3
#if defined(USE_ESP_IDF)
#if defined(USE_ESP32_VARIANT_ESP32S2) || defined(USE_ESP32_VARIANT_ESP32S3)
"USB_CDC",
#endif // USE_ESP32_VARIANT_ESP32S2 || USE_ESP32_VARIANT_ESP32S3
#if defined(USE_ESP32_VARIANT_ESP32C3) || defined(USE_ESP32_VARIANT_ESP32S3)
"USB_SERIAL_JTAG",
#endif // USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32S3
#endif // USE_ESP_IDF
};
#endif // USE_ESP32
#ifdef USE_ESP8266
const char *const UART_SELECTIONS[] = {"UART0", "UART1", "UART0_SWAP"};
#endif // USE_ESP8266
#ifdef USE_RP2040
const char *const UART_SELECTIONS[] = {"UART0", "UART1", "USB_CDC"};
#endif // USE_RP2040
#ifdef USE_LIBRETINY
const char *const UART_SELECTIONS[] = {"DEFAULT", "UART0", "UART1", "UART2"};
#endif // USE_LIBRETINY
void Logger::dump_config() {
ESP_LOGCONFIG(TAG, "Logger:");
ESP_LOGCONFIG(TAG, " Level: %s", LOG_LEVELS[ESPHOME_LOG_LEVEL]);
ESP_LOGCONFIG(TAG, " Log Baud Rate: %" PRIu32, this->baud_rate_);
#if defined(USE_ESP32) || defined(USE_ESP8266) || defined(USE_RP2040) || defined(USE_LIBRETINY)
ESP_LOGCONFIG(TAG, " Hardware UART: %s", UART_SELECTIONS[this->uart_]);
#endif
for (auto &it : this->log_levels_) {
ESP_LOGCONFIG(TAG, " Level for '%s': %s", it.tag.c_str(), LOG_LEVELS[it.level]);
}
}
void Logger::write_footer_() { this->write_to_buffer_(ESPHOME_LOG_RESET_COLOR, strlen(ESPHOME_LOG_RESET_COLOR)); }
Logger *global_logger = nullptr; // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
} // namespace logger
} // namespace esphome
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