epicardium: BLE opt in

epicardium/main.c

@@ -30,6 +30,40 @@ TaskHandle_t dispatcher_task_id;
 
 void vBleTask(void *pvParameters);
 
+#define BLEMAXCFGBYTES 100
+int bleShallStart(void)
+{
+	int bleConfigFile = epic_file_open("ble.txt", "r");
+	if (bleConfigFile < 0) {
+		LOG_INFO("startup", "can not open ble.txt -> BLE is not started");
+		return 0;
+	}
+
+	char cfgBuf[BLEMAXCFGBYTES+1];
+	int readNum = epic_file_read(bleConfigFile, cfgBuf, BLEMAXCFGBYTES);
+	LOG_INFO("startup", "readNum %i", readNum);
+	if (readNum < 0) {
+		LOG_INFO("startup", "can not read ble.txt -> BLE is not started");
+		return 0;
+	}
+	cfgBuf[readNum] = '\0';
+
+	LOG_INFO("startup", "faa %s", cfgBuf);
+
+	char bleActiveStr[] = "active=true";
+	cfgBuf[sizeof(bleActiveStr)-1] = '\0';
+	LOG_INFO("startup", "foe %i %s", sizeof(bleActiveStr), cfgBuf);
+
+	if (strcmp(cfgBuf, "active=true") != 0) {
+		LOG_INFO("startup", "ble.txt is not \"active=true\" -> BLE is not started");
+		return 0;
+	}
+
+	LOG_INFO("startup", "ble.txt is \"active=true\" -> BLE is starting");
+
+	return 1;
+}
+
 int main(void)
 {
 	LOG_INFO("startup", "Epicardium startup ...");
@@ -118,15 +152,17 @@ int main(void)
 	}
 
 	/* BLE */
-	if (xTaskCreate(
-		    vBleTask,
-		    (const char *)"BLE",
-		    configMINIMAL_STACK_SIZE * 10,
-		    NULL,
-		    tskIDLE_PRIORITY + 1,
-		    NULL) != pdPASS) {
-		LOG_CRIT("startup", "Failed to create %s task!", "BLE");
-		abort();
+	if (bleShallStart()) {
+		if (xTaskCreate(
+			    vBleTask,
+			    (const char *)"BLE",
+			    configMINIMAL_STACK_SIZE * 10,
+			    NULL,
+			    tskIDLE_PRIORITY + 1,
+			    NULL) != pdPASS) {
+			LOG_CRIT("startup", "Failed to create %s task!", "BLE");
+			abort();
+		}
 	}
 
 	/* light sensor */