adjust root folder

include/fifo.h

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+/**
+* @file
+* @author Steve Karg
+* @date 2004
+*/
+#ifndef FIFO_H
+#define FIFO_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+/**
+* FIFO data structure
+*
+* @{
+*/
+struct fifo_buffer_t {
+    /** first byte of data */
+    volatile unsigned head;
+    /** last byte of data */
+    volatile unsigned tail;
+    /** block of memory or array of data */
+    volatile uint8_t *buffer;
+    /** length of the data */
+    unsigned buffer_len;
+};
+typedef struct fifo_buffer_t FIFO_BUFFER;
+/** @} */
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+    unsigned FIFO_Count(
+        FIFO_BUFFER const *b);
+
+    bool FIFO_Full(
+        FIFO_BUFFER const *b);
+
+    bool FIFO_Available(
+        FIFO_BUFFER const *b,
+        unsigned count);
+
+    bool FIFO_Empty(
+        FIFO_BUFFER const *b);
+
+    uint8_t FIFO_Peek(
+        FIFO_BUFFER const *b);
+
+    uint8_t FIFO_Get(
+        FIFO_BUFFER * b);
+
+    unsigned FIFO_Pull(
+        FIFO_BUFFER * b,
+        uint8_t * data_bytes,
+        unsigned length);
+
+    bool FIFO_Put(
+        FIFO_BUFFER * b,
+        uint8_t data_byte);
+
+    bool FIFO_Add(
+        FIFO_BUFFER * b,
+        uint8_t * data_bytes,
+        unsigned count);
+
+    void FIFO_Flush(
+        FIFO_BUFFER * b);
+
+/* note: buffer_len must be a power of two */
+    void FIFO_Init(
+        FIFO_BUFFER * b,
+        volatile uint8_t * buffer,
+        unsigned buffer_len);
+
+#ifdef TEST
+#include "ctest.h"
+    void testFIFOBuffer(
+        Test * pTest);
+#endif
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif