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esphome/esphome/components/esp32/core.cpp
T
J. Nick Koston d3bae21d13 [core] Extend HAL inlining to yield/delay/millis_64 + libretiny + rp2040
Extends the prior commit to cover more wrappers and platforms:

- ESP32: also inline yield() and delay()
- ESP8266: also inline yield(), delay(), millis(), millis_64()
- LibreTiny: inline yield(), delay(), micros(), per-variant millis()
  fast paths, and millis_64() (via Millis64Impl::compute, now reachable
  from hal.h since time_64.h dropped its helpers.h dep)
- RP2040: also inline yield(), delay(), micros()

Consolidates the ESP8266/LibreTiny/RP2040 Arduino-flavored ::yield /
::delay / ::micros wrappers into a single shared block in hal.h.

LibreTiny note: the prior IRAM_ATTR on the wrapper was decorative —
::micros(), ::yield(), ::delay() and xTaskGetTickCount all live in
flash on every libretiny family (realtek-amb, beken-72xx,
lightning-ln882h all checked), so an IRAM ISR call would have crashed
the same way an inlined direct call does.

Also drops the helpers.h include from time_64.h (only used for the
ESPHOME_ALWAYS_INLINE macro, replaced with the raw attribute) so
time_64.h is light enough for hal.h to include.
2026-04-24 11:51:23 -05:00

100 lines
3.3 KiB
C++

#ifdef USE_ESP32
#include "esphome/core/defines.h"
#include "crash_handler.h"
#include "esphome/core/application.h"
#include "esphome/core/hal.h"
#include "esphome/core/helpers.h"
#include "preferences.h"
#include <esp_clk_tree.h>
#include <esp_cpu.h>
#include <esp_idf_version.h>
#include <esp_ota_ops.h>
#include <esp_task_wdt.h>
#include <esp_timer.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
void setup(); // NOLINT(readability-redundant-declaration)
// Weak stub for initArduino - overridden when the Arduino component is present
extern "C" __attribute__((weak)) void initArduino() {}
namespace esphome {
// yield(), delay(), micros(), millis_64() inlined in hal.h.
// Use xTaskGetTickCount() when tick rate is 1 kHz (ESPHome's default via sdkconfig),
// falling back to esp_timer for non-standard rates. IRAM_ATTR is required because
// Wiegand and ZyAura call millis() from IRAM_ATTR ISR handlers on ESP32.
// xTaskGetTickCountFromISR() is used in ISR context to satisfy the FreeRTOS API contract.
uint32_t IRAM_ATTR HOT millis() {
#if CONFIG_FREERTOS_HZ == 1000
if (xPortInIsrContext()) [[unlikely]] {
return xTaskGetTickCountFromISR();
}
return xTaskGetTickCount();
#else
return micros_to_millis(static_cast<uint64_t>(esp_timer_get_time()));
#endif
}
void IRAM_ATTR HOT delayMicroseconds(uint32_t us) { delay_microseconds_safe(us); }
void arch_restart() {
esp_restart();
// restart() doesn't always end execution
while (true) { // NOLINT(clang-diagnostic-unreachable-code)
yield();
}
}
void arch_init() {
#ifdef USE_ESP32_CRASH_HANDLER
// Read crash data from previous boot before anything else
esp32::crash_handler_read_and_clear();
#endif
// Enable the task watchdog only on the loop task (from which we're currently running)
esp_task_wdt_add(nullptr);
// Handle OTA rollback: mark partition valid immediately unless USE_OTA_ROLLBACK is enabled,
// in which case safe_mode will mark it valid after confirming successful boot.
#ifndef USE_OTA_ROLLBACK
esp_ota_mark_app_valid_cancel_rollback();
#endif
}
void HOT arch_feed_wdt() { esp_task_wdt_reset(); }
uint32_t arch_get_cpu_cycle_count() { return esp_cpu_get_cycle_count(); }
uint32_t arch_get_cpu_freq_hz() {
uint32_t freq = 0;
esp_clk_tree_src_get_freq_hz(SOC_MOD_CLK_CPU, ESP_CLK_TREE_SRC_FREQ_PRECISION_CACHED, &freq);
return freq;
}
TaskHandle_t loop_task_handle = nullptr; // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
static StaticTask_t loop_task_tcb; // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
static StackType_t
loop_task_stack[ESPHOME_LOOP_TASK_STACK_SIZE]; // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
void loop_task(void *pv_params) {
setup();
while (true) {
App.loop();
}
}
extern "C" void app_main() {
initArduino();
esp32::setup_preferences();
#if CONFIG_FREERTOS_UNICORE
loop_task_handle = xTaskCreateStatic(loop_task, "loopTask", ESPHOME_LOOP_TASK_STACK_SIZE, nullptr, 1, loop_task_stack,
&loop_task_tcb);
#else
loop_task_handle = xTaskCreateStaticPinnedToCore(loop_task, "loopTask", ESPHOME_LOOP_TASK_STACK_SIZE, nullptr, 1,
loop_task_stack, &loop_task_tcb, 1);
#endif
}
} // namespace esphome
#endif // USE_ESP32