1 files changed, 76 insertions, 0 deletions
diff --git a/fw/midi-dials/Inc/curelib_inc/curebuffer.h b/fw/midi-dials/Inc/curelib_inc/curebuffer.h
new file mode 100644
index 0000000..2802c61
--- /dev/null
+++ b/fw/midi-dials/Inc/curelib_inc/curebuffer.h
@@ -0,0 +1,76 @@
+/*
+ *******************************************************************************
+ *  [curebuffer.h]
+ *  This module is for FIFO buffer.
+ *
+ *  This program is under the terms of the GPLv3.
+ *  https://www.gnu.org/licenses/gpl-3.0.html
+ *
+ *  Copyright(c) 2017 Keshikan (www.keshikan.net)
+ *******************************************************************************
+ */
+
+#ifndef CUREBUFFER_H_
+#define CUREBUFFER_H_
+
+#include <stdint.h>
+
+typedef enum{
+	BUFFER_FAILURE,BUFFER_SUCCESS
+}BUFFER_STATUS;
+
+typedef struct{
+	uint16_t idx_front;
+	uint16_t idx_rear;
+	uint16_t length;
+	uint8_t  *buffer;
+}RingBufferU8;
+
+typedef struct{
+	uint16_t idx_front;
+	uint16_t idx_rear;
+	uint16_t length;
+	int16_t *buffer;
+}RingBuffer16;
+
+typedef struct{
+	uint16_t idx_front;
+	uint16_t idx_rear;
+	uint16_t length;
+	uint32_t *buffer;
+}RingBuffer32;
+
+
+/////////////////////////////
+//methods for uint8_t FIFO.
+/////////////////////////////
+extern BUFFER_STATUS cureRingBufferU8Init(RingBufferU8 *rbuf, uint16_t buflen);
+extern BUFFER_STATUS cureRingBufferU8Free(RingBufferU8 *rbuf);
+extern BUFFER_STATUS cureRingBufferU8Enqueue(RingBufferU8 *rbuf, uint8_t *inputc);
+extern BUFFER_STATUS cureRingBufferU8Dequeue(RingBufferU8 *rbuf, uint8_t *ret);
+
+/////////////////////////////
+//methods for int16_t FIFO.
+/////////////////////////////
+extern BUFFER_STATUS cureRingBuffer16Init(RingBuffer16 *rbuf, uint16_t buflen);
+extern BUFFER_STATUS cureRingBuffer16Free(RingBuffer16 *rbuf);
+extern BUFFER_STATUS cureRingBuffer16Enqueue(RingBuffer16 *rbuf, int16_t *inputc);
+extern BUFFER_STATUS cureRingBuffer16EnqueueIgnoreErr(RingBuffer16 *rbuf, int16_t *inputc);
+extern BUFFER_STATUS cureRingBuffer16Dequeue(RingBuffer16 *rbuf, int16_t *ret);
+extern BUFFER_STATUS cureRingBuffer16GetElement(RingBuffer16 *rbuf, int16_t *ret, uint16_t delaynum, uint16_t length);
+
+/////////////////////////////
+//methods for uint32_t FIFO.
+/////////////////////////////
+extern BUFFER_STATUS cureRingBufferU32Init(RingBuffer32 *rbuf, uint16_t buflen);
+extern BUFFER_STATUS cureRingBufferU32Free(RingBuffer32 *rbuf);
+extern BUFFER_STATUS cureRingBufferU32Enqueue(RingBuffer32 *rbuf, uint32_t *inputc);
+extern BUFFER_STATUS cureRingBufferU32EnqueueIgnoreErr(RingBuffer32 *rbuf, uint32_t *inputc);
+extern BUFFER_STATUS cureRingBufferU32Dequeue(RingBuffer32 *rbuf, uint32_t *ret);
+extern BUFFER_STATUS cureRingBufferU32GetElement(RingBuffer32 *rbuf, uint32_t *ret, uint16_t delaynum, uint16_t delay_buffer_length);
+
+
+//debug
+extern uint16_t _cureRingBufferU8GetUsedSize(RingBufferU8 *rbuf);
+
+#endif /* CUREBUFFER_H_ */