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 ...");
@@ -118,6 +152,7 @@ int main(void)
 	}
 
 	/* BLE */
+	if (bleShallStart()) {
 		if (xTaskCreate(
 			    vBleTask,
 			    (const char *)"BLE",
@@ -128,6 +163,7 @@ int main(void)
 			LOG_CRIT("startup", "Failed to create %s task!", "BLE");
 			abort();
 		}
+	}
 
 	/* light sensor */
 	LOG_INFO("startup", "starting light sensor ...");