new meter

components/evse/include/evse_state.h

@@ -1,49 +1,95 @@
 #ifndef EVSE_STATE_H
 #define EVSE_STATE_H
 
+#include <stdbool.h>
+#include "freertos/FreeRTOS.h"
 #include "evse_events.h"
 
+// ============================
+// EVSE Pilot Signal States
+// ============================
 
-#include <stdbool.h>
-
-// Estado do EVSE (pilot signal)
 typedef enum {
-    EVSE_STATE_A,
-    EVSE_STATE_B1,
-    EVSE_STATE_B2,
-    EVSE_STATE_C1,
-    EVSE_STATE_C2,
-    EVSE_STATE_D1,
-    EVSE_STATE_D2,
-    EVSE_STATE_E,
-    EVSE_STATE_F
+    EVSE_STATE_A,   // EV Not Connected (12V)
+    EVSE_STATE_B1,  // EV Connected (9V, Not Authorized)
+    EVSE_STATE_B2,  // EV Connected (9V, Authorized and Ready)
+    EVSE_STATE_C1,  // Charging Requested (6V, Relay Off)
+    EVSE_STATE_C2,  // Charging Active (6V, Relay On)
+    EVSE_STATE_D1,  // Ventilation Required (3V, Relay Off)
+    EVSE_STATE_D2,  // Ventilation Active (3V, Relay On)
+    EVSE_STATE_E,   // Error: Pilot Short to Ground (0V)
+    EVSE_STATE_F    // Fault: No Pilot or EVSE Unavailable
 } evse_state_t;
 
+// ============================
+// Initialization & Core Control
+// ============================
 
-// Funções públicas necessárias
+/**
+ * @brief Initializes the EVSE state machine.
+ */
 void evse_state_init(void);
+
+/**
+ * @brief Periodic tick function for the state machine.
+ */
 void evse_state_tick(void);
 
-void evse_state_set_authorized(bool authorized);
-bool evse_state_get_authorized(void);
-
+// ============================
+// State Access
+// ============================
 
+/**
+ * @brief Returns the current EVSE state.
+ */
 evse_state_t evse_get_state(void);
 
+/**
+ * @brief Updates the current EVSE state and triggers events.
+ */
 void evse_set_state(evse_state_t state);
 
-// Converte o estado para string
+/**
+ * @brief Returns the tick count when charging session started.
+ */
+TickType_t evse_get_session_start(void);
+
+/**
+ * @brief Converts the state enum to a human-readable string.
+ */
 const char* evse_state_to_str(evse_state_t state);
 
-// Retorna true se o estado representa sessão ativa
+// ============================
+// State Evaluators
+// ============================
+
+/**
+ * @brief Returns true if the state represents an active session (B2, C1, C2).
+ */
 bool evse_state_is_session(evse_state_t state);
 
-// Retorna true se o estado representa carregamento ativo
+/**
+ * @brief Returns true if the state represents active charging (C1, C2).
+ */
 bool evse_state_is_charging(evse_state_t state);
 
-// Retorna true se o estado representa veículo conectado
+/**
+ * @brief Returns true if the vehicle is plugged in.
+ */
 bool evse_state_is_plugged(evse_state_t state);
 
-//evse_state_event_t map_state_to_event(evse_state_t state);
+// ============================
+// Authorization
+// ============================
+
+/**
+ * @brief Sets the vehicle authorization state.
+ */
+void evse_state_set_authorized(bool authorized);
+
+/**
+ * @brief Returns the current vehicle authorization state.
+ */
+bool evse_state_get_authorized(void);
 
 #endif // EVSE_STATE_H