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Libs/platform/emdrv/nvm3/inc/nvm3.h

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+/***************************************************************************//**
+ * @file
+ * @brief NVM3 API definition (Device Specific).
+ *******************************************************************************
+ * # License
+ * <b>Copyright 2018 Silicon Laboratories Inc. www.silabs.com</b>
+ *******************************************************************************
+ *
+ * SPDX-License-Identifier: Zlib
+ *
+ * The licensor of this software is Silicon Laboratories Inc.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ *
+ ******************************************************************************/
+
+#ifndef NVM3_H
+#define NVM3_H
+
+#ifndef NVM3_HOST_BUILD
+#include "em_device.h"
+#endif
+
+#include "nvm3_generic.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/***************************************************************************//**
+ * @addtogroup nvm3
+ * @{
+ ******************************************************************************/
+
+#define NVM3_MIN_FRAGMENT_COUNT         (2U)                            ///< The minimum number of fragments
+#if defined(FLASH_PAGE_SIZE)
+#define NVM3_MAX_OBJECT_SIZE_X          (NVM3_MAX_OBJECT_SIZE + 8)      // Adjust for an object header
+#define FLASH_PAGE_SIZE_X               (FLASH_PAGE_SIZE - 20)          // Adjust for a page header
+#define NVM3_FRAGMENT_COUNT             (((NVM3_MAX_OBJECT_SIZE_X - 1) / FLASH_PAGE_SIZE_X) + NVM3_MIN_FRAGMENT_COUNT)
+#endif
+
+typedef struct nvm3_ObjFrag {
+  uint8_t              idx;                 // Fragment index
+  bool                 isFirstFragFound;    // The object first fragment found
+  bool                 isLastFragFound;     // The object last fragment found
+#if defined(FLASH_PAGE_SIZE)
+  nvm3_ObjFragDetail_t detail[NVM3_FRAGMENT_COUNT];
+#else
+  nvm3_ObjFragDetail_t detail[NVM3_MIN_FRAGMENT_COUNT];
+#endif
+} nvm3_ObjFrag_t;
+
+typedef struct nvm3_Obj {
+  nvm3_ObjectKey_t  key;          // The object key
+  struct nvm3_Obj   *objAdr;      // The object pointer
+  struct nvm3_Obj   *nextObjAdr;  // The next object pointer
+  const void        *srcPtr;      // May be used to carry the source address of the data
+  size_t            totalLen;     // The object total length
+  uint8_t           objType;      // The object type
+  bool              isHdrValid;   // The object header is valid
+  bool              isValid;      // The object is valid
+  bool              isFragmented; // The object is fragmented
+  nvm3_ObjFrag_t    frag;         // The object fragment information
+} nvm3_Obj_t;
+
+// Definition of NVM3 variables
+/// @brief A variable used by the NVM3 functions.
+extern nvm3_Obj_t nvm3_internalObjectHandleA;
+/// @brief A variable used by the NVM3 functions.
+extern nvm3_Obj_t nvm3_internalObjectHandleB;
+/// @brief A variable used by the NVM3 functions.
+extern nvm3_Obj_t nvm3_internalObjectHandleC;
+/// @brief A variable used by the NVM3 functions.
+extern nvm3_Obj_t nvm3_internalObjectHandleD;
+#if defined(NVM3_SECURITY)
+/// @brief A variable used by the NVM3 functions.
+extern nvm3_Obj_t nvm3_internalObjectHandleE;
+#endif
+/// @brief A variable that must contain the maximum number of object fragments.
+extern const uint8_t  nvm3_maxFragmentCount;
+/// @brief A variable containing the object handle size in bytes.
+extern const size_t   nvm3_objHandleSize;
+
+#ifdef __cplusplus
+}
+#endif
+
+/// @} end group nvm3 ****************************************************/
+
+#endif /* NVM3_H */