Diff: Fota/Fragmentation/FragmentationMath.h

Revision:

66:baa0f3116f1d

Child:

67:a9d4d7cdeca1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Fota/Fragmentation/FragmentationMath.h	Tue Apr 23 08:51:10 2019 -0500
@@ -0,0 +1,62 @@
+#ifndef _FRAGMENTATION_MATH_H
+#define _FRAGMENTATION_MATH_H
+#ifdef FOTA
+
+#include "mbed.h"
+#include "mDot.h"
+#include "WriteFile.h"
+
+#define FRAG_SESSION_ONGOING    0xffffffff
+#ifndef MAX_PARITY
+#define MAX_PARITY 400
+#endif
+class FragmentationMath
+{
+  public:
+    FragmentationMath(mDot* dot, uint16_t frame_count, uint8_t frame_size, WriteFile* fh);
+    ~FragmentationMath();
+    bool Init();
+    int getLostFrameCount();
+    void reset(uint16_t fcount);
+    void setFrameFound(uint16_t frameCounter);
+    bool processParityFrag(uint16_t frameCounter, uint8_t *pFrag);
+
+    int FragmentationPrbs23(int x);
+    bool IsPowerOfTwo(unsigned int x);
+    int32_t FindMissingFrameIndex(uint16_t x);
+    int32_t FindTrueFrameIndex(uint16_t x);
+    void GetRowInFlash(int l, uint8_t *rowData);
+    int FindFirstOne(uint8_t *boolData, int size);
+    void StoreRowInFlash(uint8_t *rowData, int index);
+    void XorLineData(uint8_t *dataL1, uint8_t *dataL2, int size);
+    void XorLineBit(uint8_t *dataL1, uint8_t *dataL2, int size);
+    void XorRowWithMatrix(uint8_t* row, int matrix_row_num); 
+    void FragmentationGetParityMatrixRow(int N, int M, uint8_t *matrixRow);
+    void CondenseRow(uint8_t *row, int row_number, int start);
+    void ExpandAndXorRow(uint8_t *row, int row_number);
+    bool CheckIfMissing(int row_number, int index);
+    void CompleteRow(int row_num);
+    void printMatrix();
+
+    uint8_t _frame_size; 
+    uint16_t _frame_count;
+    uint16_t _max_parity;
+    uint16_t numFramesMissing;
+    uint16_t lastReceiveFrameCnt;
+
+    uint8_t *matrix;
+    uint8_t *matrixRow;
+    uint8_t *parity_frag;
+    uint8_t *missingFrameIndex;
+    uint8_t *frag_in_flash;
+
+    bool empty;
+    int index_of_first;
+    int matrix_row_num;
+    int index;
+
+    mDot* _dot;
+    WriteFile* _fh;
+};
+#endif
+#endif // _FRAGMENTATION_MATH_H