Diff: NVProperty_MBEDFlash.h

Revision:

4:eb6850e3bc21

Child:

5:2560e615ccd5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/NVProperty_MBEDFlash.h	Thu Jan 31 21:31:29 2019 +0100
@@ -0,0 +1,97 @@
+/*
+ * This is an unpublished work copyright
+ * (c) 2019 Helmut Tschemernjak
+ * 30826 Garbsen (Hannover) Germany
+ *
+ *
+ * Use is granted to registered RadioShuttle licensees only.
+ * Licensees must own a valid serial number and product code.
+ * Details see: www.radioshuttle.de
+ */
+
+#ifndef __NVPROPERTY_MBEDFLASH__
+#define __NVPROPERTY_MBEDFLASH__
+
+class NVProperty_MBEDFlash : public NVPropertyProviderInterface {
+public:
+	NVProperty_MBEDFlash(int propSizekB, bool erase);
+	~NVProperty_MBEDFlash();
+	
+    virtual int GetProperty(int key);
+    virtual int64_t GetProperty64(int key);
+    virtual int GetPropertyBlob(int key, const void *blob, int *size);
+    virtual const char *GetPropertyStr(int key);
+    virtual int SetProperty(int key, int64_t value, int type);
+    virtual int SetPropertyStr(int key, const char *value, int type);
+    virtual int SetPropertyBlob(int key, const void *blob, int size, int type);
+    virtual int EraseProperty(int key);
+    virtual int ReorgProperties(void);
+    virtual int OpenPropertyStore(bool forWrite = false);
+    virtual int ClosePropertyStore(bool flush = false);
+	
+private:
+	void _FlashInititalize(bool force = false);
+	void _FlashEraseRow(int startRow, int count = 1);
+	void _FlashWrite(uint8_t *address, const void *data, size_t length);
+	bool _FlashIsCleared(uint8_t *address, int len);
+	void _FlashWritePage(int page, int offset, uint8_t *data, int length);
+
+	struct _flash_header {
+		uint32_t magic;
+		uint16_t version;
+		uint16_t sizeKB;
+	};
+	
+	static const int FLASH_ENTRY_MIN_SIZE		= 8;
+	static const int MAX_DATA_ENTRY				= 256-FLASH_ENTRY_MIN_SIZE;
+	static const int FLASH_PADDING_SIZE			= 8; // writes sizes and alignment must be multiple of 64-bit,
+	
+	struct _flashEntry {
+		uint8_t key;	// Property key
+		struct {
+			uint8_t deleted	: 1; // this key has been deleted
+			uint8_t t_bit  	: 1; // contains the bool value
+			uint8_t reserv1	: 1; //
+			uint8_t reserv2	: 1; //
+			uint8_t type   	: 4; // NVPType
+		} t;
+		union {
+			int16_t v_16bit;
+			int8_t	v_8bit;
+			struct {
+				uint8_t d_len;				 // data length
+				uint8_t f_reserv1  		: 8;
+			} option;
+		} u;
+		union {
+			int32_t v_32bit;
+			int32_t v_64bit[2];	// use use 2 x 32-bit to avoid 64-bit struct padding
+			char v_str[MAX_DATA_ENTRY];
+			uint8_t v_blob[MAX_DATA_ENTRY];
+		} data;
+	};
+	
+	_flashEntry * _GetFlashEntry(int key, uint8_t *start = NULL);
+	int _GetFlashEntryLen(_flashEntry *k);
+	int _GetFlashPaddingSize(int len);
+	_flashEntry *_lastEntry;
+	void _DumpAllEntires(void);
+	int _FlashReorgEntries(int minRequiredSpace);
+	bool _debug;
+	int _propSizekB;
+	int _pageSize;
+	int _numPages;
+	int _rowSize;
+	FlashIAP *_flashIAP;
+	uint8_t *_startAddress;
+	uint8_t *_endAddress;
+
+	static const int FLASH_PROP_MAGIC = 0x4c6f5261; // "LORA"
+	static const int FLASH_PROP_VERSION = 3;
+	static const int _bootlLoaderSize = 8192;
+	static const int _lockRegions = 16;	// d21 lock regions are always 16 for the entire ram
+
+
+};
+
+#endif // __NVPROPERTY_MBEDLASH__