[nrf52,logger] Early debug (#11685)

esphome/components/debug/debug_zephyr.cpp

@@ -2,6 +2,7 @@
 #ifdef USE_ZEPHYR
 #include <climits>
 #include "esphome/core/log.h"
+#include <esphome/components/zephyr/reset_reason.h>
 #include <zephyr/drivers/hwinfo.h>
 #include <hal/nrf_power.h>
 #include <cstdint>
@@ -15,16 +16,6 @@ static const char *const TAG = "debug";
 constexpr std::uintptr_t MBR_PARAM_PAGE_ADDR = 0xFFC;
 constexpr std::uintptr_t MBR_BOOTLOADER_ADDR = 0xFF8;
 
-static size_t append_reset_reason(char *buf, size_t size, size_t pos, bool set, const char *reason) {
-  if (!set) {
-    return pos;
-  }
-  if (pos > 0) {
-    pos = buf_append_printf(buf, size, pos, ", ");
-  }
-  return buf_append_printf(buf, size, pos, "%s", reason);
-}
-
 static inline uint32_t read_mem_u32(uintptr_t addr) {
   return *reinterpret_cast<volatile uint32_t *>(addr);  // NOLINT(performance-no-int-to-ptr)
 }
@@ -57,39 +48,7 @@ static inline uint32_t sd_version_get() {
 }
 
 const char *DebugComponent::get_reset_reason_(std::span<char, RESET_REASON_BUFFER_SIZE> buffer) {
-  char *buf = buffer.data();
-  const size_t size = RESET_REASON_BUFFER_SIZE;
-
-  uint32_t cause;
-  auto ret = hwinfo_get_reset_cause(&cause);
-  if (ret) {
-    ESP_LOGE(TAG, "Unable to get reset cause: %d", ret);
-    buf[0] = '\0';
-    return buf;
-  }
-  size_t pos = 0;
-
-  pos = append_reset_reason(buf, size, pos, cause & RESET_PIN, "External pin");
-  pos = append_reset_reason(buf, size, pos, cause & RESET_SOFTWARE, "Software reset");
-  pos = append_reset_reason(buf, size, pos, cause & RESET_BROWNOUT, "Brownout (drop in voltage)");
-  pos = append_reset_reason(buf, size, pos, cause & RESET_POR, "Power-on reset (POR)");
-  pos = append_reset_reason(buf, size, pos, cause & RESET_WATCHDOG, "Watchdog timer expiration");
-  pos = append_reset_reason(buf, size, pos, cause & RESET_DEBUG, "Debug event");
-  pos = append_reset_reason(buf, size, pos, cause & RESET_SECURITY, "Security violation");
-  pos = append_reset_reason(buf, size, pos, cause & RESET_LOW_POWER_WAKE, "Waking up from low power mode");
-  pos = append_reset_reason(buf, size, pos, cause & RESET_CPU_LOCKUP, "CPU lock-up detected");
-  pos = append_reset_reason(buf, size, pos, cause & RESET_PARITY, "Parity error");
-  pos = append_reset_reason(buf, size, pos, cause & RESET_PLL, "PLL error");
-  pos = append_reset_reason(buf, size, pos, cause & RESET_CLOCK, "Clock error");
-  pos = append_reset_reason(buf, size, pos, cause & RESET_HARDWARE, "Hardware reset");
-  pos = append_reset_reason(buf, size, pos, cause & RESET_USER, "User reset");
-  pos = append_reset_reason(buf, size, pos, cause & RESET_TEMPERATURE, "Temperature reset");
-
-  // Ensure null termination if nothing was written
-  if (pos == 0) {
-    buf[0] = '\0';
-  }
-
+  const char *buf = zephyr::get_reset_reason(buffer);
   ESP_LOGD(TAG, "Reset Reason: %s", buf);
   return buf;
 }