Diff: MyClasses_Functions/sai_io_o.hpp

Revision:

0:2eb96a7cf9b9

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MyClasses_Functions/sai_io_o.hpp	Fri Apr 01 05:03:20 2016 +0000
@@ -0,0 +1,59 @@
+//-----------------------------------------------------------
+//  SiaIO class for output (Header)
+//  2016/02/16, Copyright (c) 2016 MIKAMI, Naoki
+//-----------------------------------------------------------
+
+#ifndef F746_SAI_IO_HPP
+#define F746_SAI_IO_HPP
+
+#include "mbed.h"
+#include "stm32746g_discovery_audio.h"
+#include "BSP_AudioOut_Overwrite.hpp"
+
+namespace Mikami
+{
+    class SaiIO_O
+    {
+    public:
+        SaiIO_O(int size, int fs);
+
+        void InitCodecOut();
+        
+        bool IsXferred();
+        void Output(int16_t xL, int16_t xR);
+        
+        void ResetXferred() { xferred_ = false; }
+        int32_t GetLength() { return nData_; }
+        void Stop()   { BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW); }
+        void Pause()  { BSP_AUDIO_OUT_Pause(); }
+        void Resume() { BSP_AUDIO_OUT_Resume(); }
+
+        
+        // These three member functions are called from
+        // callback functions in "BSP_AudioOut_Overwrite.cpp"
+
+        // Called form BSP_AUDIO_OUT_HalfTransfer_CallBack()
+        static void FillBuffer1st() { FillBuffer(0); }
+        // Called form BSP_AUDIO_OUT_TransferComplete_CallBack()
+        static void FillBuffer2nd() { FillBuffer(bufferSize_/2); }
+        // Also called form BSP_AUDIO_OUT_Error_CallBack()
+        static void ErrorTrap();
+
+    private:
+        const int FS_;
+        static const uint8_t VOLUME_OUT_ = 90;
+
+        static int32_t nData_;
+        static int32_t bufferSize_;
+
+        static int16_t* outBuffer_;
+        static int16_t* tmp_;       
+
+        static __IO bool xferred_;
+        
+        __IO int32_t tmpIndex_;
+
+        static void FillBuffer(uint32_t offset);
+    };
+}
+#endif  // F746_SAI_IO_HPP