new buzzer component

2025-07-22 00:09:58 +01:00
parent 84f106eee5
commit bd587a10c0
58 changed files with 3215 additions and 6961 deletions
--- a/components/evse/evse_session.c
+++ b/components/evse/evse_session.c
@@ -0,0 +1,84 @@
+/*
+ * evse_session.c
+ * Implementation of evse_session module using instantaneous power accumulation
+ */
+#include <inttypes.h>  // for PRIu32
+#include "evse_session.h"
+#include "evse_meter.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "esp_log.h"
+
+static const char *TAG = "evse_session";
+
+// Internal state
+static TickType_t session_start_tick = 0;
+static uint32_t   watt_seconds        = 0;  // accumulator of W·s
+static evse_session_t last_session;
+static bool            last_session_valid = false;
+
+void evse_session_init(void) {
+    session_start_tick   = 0;
+    watt_seconds         = 0;
+    last_session_valid   = false;
+}
+
+void evse_session_start(void) {
+    session_start_tick = xTaskGetTickCount();
+    watt_seconds       = 0;
+    ESP_LOGI(TAG, "Session started at tick %u", (unsigned)session_start_tick);
+}
+
+void evse_session_end(void) {
+    if (session_start_tick == 0) {
+        ESP_LOGW(TAG, "evse_session_end called without active session");
+        return;
+    }
+    TickType_t now = xTaskGetTickCount();
+    uint32_t duration_s = (now - session_start_tick) / configTICK_RATE_HZ;
+    uint32_t energy_wh = watt_seconds / 3600U;
+    uint32_t avg_power = duration_s > 0 ? watt_seconds / duration_s : 0;
+
+    last_session.start_tick  = session_start_tick;
+    last_session.duration_s  = duration_s;
+    last_session.energy_wh   = energy_wh;
+    last_session.avg_power_w = avg_power;
+    last_session.is_current  = false;
+    last_session_valid       = true;
+
+    session_start_tick = 0;
+    ESP_LOGI(TAG, "Session ended: duration=%" PRIu32 " s, energy=%" PRIu32 " Wh, avg_power=%" PRIu32 " W",
+            (uint32_t)duration_s, (uint32_t)energy_wh, (uint32_t)avg_power);
+}
+
+void evse_session_tick(void) {
+    if (session_start_tick == 0) return;
+    // Should be called every second (or known interval)
+    uint32_t power_w = evse_meter_get_instant_power();
+    watt_seconds += power_w;
+}
+
+bool evse_session_get(evse_session_t *out) {
+    if (out == NULL) return false;
+
+    if (session_start_tick != 0) {
+        TickType_t now = xTaskGetTickCount();
+        uint32_t duration_s = (now - session_start_tick) / configTICK_RATE_HZ;
+        uint32_t energy_wh   = watt_seconds / 3600U;
+        uint32_t avg_power   = duration_s > 0 ? watt_seconds / duration_s : 0;
+
+        out->start_tick   = session_start_tick;
+        out->duration_s   = duration_s;
+        out->energy_wh    = energy_wh;
+        out->avg_power_w  = avg_power;
+        out->is_current   = true;
+        return true;
+    }
+
+    if (last_session_valid) {
+        *out = last_session;
+        return true;
+    }
+
+    return false;
+}