logger, implementation and test

cube/User/Inc/logger.h

@@ -1,6 +1,19 @@
 #ifndef _LOGGER_H_
 #define _LOGGER_H_
 
-void log(char *msg);
+// initialize the logger, creates a ringbuffer
+void logInit();
+
+// de-initialize the logger, free the ringbuffer
+void logFree();
+
+// log a message, make sure it is a null-terminated string
+// return value can be ignored, it is only used in test
+int logMsg(char *msg);
+
+// reads the ringbuffer and transfers data to output channel
+// call this from the idle-loop
+// return value can be ignored, it is only used in test
+int logExecute();
 
 #endif // _LOGGER_H_

cube/User/Inc/ringbuffer.h

@@ -14,10 +14,13 @@ typedef struct {
 
 void ringbufferInit(ringbuffer_t *handle, uint32_t bufferSize);
 void ringbufferFree(ringbuffer_t *handle);
+
 int ringbufferPut(ringbuffer_t *handle, uint8_t *data, uint32_t dataLen);
-uint8_t *ringbufferGet(ringbuffer_t *handle, uint32_t dataLen);
 bool ringbufferEmpty(ringbuffer_t *handle);
 int ringbufferGetOne(ringbuffer_t *handle); // if positive, cast to uint8_t and be happy, if negative error
 
+// not yet implemented
+uint8_t *ringbufferGet(ringbuffer_t *handle, uint32_t dataLen);
+
 
 #endif // _RINGBUFFER_H_