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components/rfid/src/main_wiegand.c

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+/*
+ * wiegand.c
+ *
+ *  Created on:
+ *      Author:
+ */
+
+#include <stdio.h>
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+#include <freertos/queue.h>
+#include <wiegand.h>
+#include <esp_log.h>
+#include <string.h>
+#include <evse_api.h>
+#include <ocpp.h>
+
+static const char *TAG = "Wiegand_reader";
+
+static wiegand_reader_t reader;
+static QueueHandle_t queue = NULL;
+
+#define CONFIG_EXAMPLE_BUF_SIZE 50
+
+// Single data packet
+typedef struct
+{
+    uint8_t data[CONFIG_EXAMPLE_BUF_SIZE];
+    size_t bits;
+} data_packet_t;
+
+// callback on new data in reader
+static void reader_callback(wiegand_reader_t *r)
+{
+    // you can decode raw data from reader buffer here, but remember:
+    // reader will ignore any new incoming data while executing callback
+
+    // create simple undecoded data packet
+    data_packet_t p;
+    p.bits = r->bits;
+    memcpy(p.data, r->buf, CONFIG_EXAMPLE_BUF_SIZE);
+
+    // Send it to the queue
+    xQueueSendToBack(queue, &p, 0);
+}
+
+static void wiegand_task(void *arg)
+{
+    // Create queue
+    queue = xQueueCreate(5, sizeof(data_packet_t));
+    if (!queue)
+    {
+        ESP_LOGE(TAG, "Error creating queue");
+        ESP_ERROR_CHECK(ESP_ERR_NO_MEM);
+    }
+
+    // Initialize reader
+    ESP_ERROR_CHECK(wiegand_reader_init(&reader, 19, 18,
+                                        true, CONFIG_EXAMPLE_BUF_SIZE, reader_callback, WIEGAND_MSB_FIRST, WIEGAND_LSB_FIRST));
+
+    data_packet_t p;
+    while (1)
+    {
+        ESP_LOGI(TAG, "Waiting for Wiegand data...");
+        xQueueReceive(queue, &p, portMAX_DELAY);
+
+        // dump received data
+        // ESP_LOGI(TAG, "==========================================");
+        ESP_LOGI(TAG, "Bits received: %d\n", p.bits);
+        ESP_LOGI(TAG, "Received data:");
+        int bytes = p.bits / 8;
+        int tail = p.bits % 8;
+        for (size_t i = 0; i < bytes + (tail ? 1 : 0); i++)
+            printf(" 0x%02x", p.data[i]);
+
+        char str[20];
+        if (p.bits == 26)
+        {
+            evse_authorize();
+            /*
+            sprintf(str, "%03d%03d%03d", p.data[0], p.data[1], p.data[2]);
+
+            if (ocpp_is_TransactionActive())
+            {
+                ocpp_end_transaction(str);
+            }
+            else
+            {
+                ocpp_begin_transaction(str);
+            }*/
+        }
+        else if (p.bits == 34)
+        {
+            evse_authorize();
+            /*
+            sprintf(str, "%03d%03d%03d%03d", p.data[0], p.data[1], p.data[2], p.data[3]);
+
+            if (ocpp_is_TransactionActive())
+            {
+                ocpp_end_transaction(str);
+            }
+            else
+            {
+                ocpp_begin_transaction(str);
+            }
+            */
+        }
+    }
+
+    // ESP_LOGI(TAG, "==========================================");
+}
+
+/*
+static void wiegand_task(void *arg)
+{
+
+    while (1)
+    {
+        vTaskDelay(pdMS_TO_TICKS(15000));
+        ocpp_begin_transaction("AAAAAA");
+
+        vTaskDelay(pdMS_TO_TICKS(15000));
+        ocpp_end_transaction("AAAAAA");
+
+        vTaskDelay(pdMS_TO_TICKS(15000));
+        ocpp_begin_transaction("AAAAAB");
+
+        vTaskDelay(pdMS_TO_TICKS(15000));
+        ocpp_end_transaction("AAAAAB");
+    }
+}
+*/
+void initWiegand()
+{
+    ESP_LOGI(TAG, "Starting wiegand");
+    // xTaskCreate(&wiegand_task, "wiegandtask", 8192, NULL, 5, NULL);
+    xTaskCreate(wiegand_task, TAG, configMINIMAL_STACK_SIZE * 4, NULL, 5, NULL);
+}