simmel-bootloader/lib/sdk11/components/drivers_nrf/pstorage/pstorage.h

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/* Copyright (c) 2013 Nordic Semiconductor. All Rights Reserved.
*
* The information contained herein is property of Nordic Semiconductor ASA.
* Terms and conditions of usage are described in detail in NORDIC
* SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
*
* Licensees are granted free, non-transferable use of the information. NO
* WARRANTY of ANY KIND is provided. This heading must NOT be removed from
* the file.
*
*/
/**@file
*
* @defgroup persistent_storage Persistent Storage Interface
* @{
* @ingroup app_common
* @brief Abstracted flash interface.
*
* @details An abstracted interface is provided by the module to easily port the application and
* SDK modules to an alternate option. This ensures that the SDK and application are moved
* to alternate persistent storage instead of the one provided by default.
*/
#ifndef PSTORAGE_H__
#define PSTORAGE_H__
#include "pstorage_platform.h"
/**@defgroup ps_opcode Persistent Storage Access Operation Codes
* @{
* @brief Persistent Storage Access Operation Codes.
*
* @details Persistent Storage Access Operation Codes are used by Persistent storage operation
* completion callback @ref pstorage_ntf_cb_t to identify the operation type requested by
* the application.
*/
#define PSTORAGE_STORE_OP_CODE 0x01 /**< Store Operation type. */
#define PSTORAGE_LOAD_OP_CODE 0x02 /**< Load Operation type. */
#define PSTORAGE_CLEAR_OP_CODE 0x03 /**< Clear Operation type. */
#define PSTORAGE_UPDATE_OP_CODE 0x04 /**< Update Operation type. */
/**@} */
/**@defgroup pstorage_data_types Persistent Memory Interface Data Types
* @{
* @brief Data Types needed for interfacing with persistent memory.
*
* @details Data Types needed for interfacing with persistent memory.
*/
/**@brief Persistent storage operation completion callback function type.
*
* @details The persistent storage operation completion callback is used by the interface to report
* success or failure of a flash operation. Since data is not copied for a store operation,
* a callback is an indication that the resident memory can now be reused or freed.
*
* @param[in] handle Identifies the module and block for the callback that is received.
* @param[in] op_code Identifies the operation for the event that is notified.
* @param[in] result Identifies the result of a flash access operation. NRF_SUCCESS implies
* operation succeeded.
*
* @note Unmanaged (abnormal behaviour) error codes from the SoftDevice flash
* access API are forwarded as is and are expected to be handled by the
* application. For details refer to the implementation file and corresponding
* SoftDevice flash API documentation.
*
* @param[in] p_data Identifies the application data pointer. For a store operation, this points
* to the resident source of application memory that the application can now
* free or reuse. When there is a clear operation, this is NULL since no
* application pointer is needed for this operation.
* @param[in] data_len Length data the application provided for the operation.
*/
typedef void (*pstorage_ntf_cb_t)(pstorage_handle_t * p_handle,
uint8_t op_code,
uint32_t result,
uint8_t * p_data,
uint32_t data_len);
/**@brief Struct containing module registration context. */
typedef struct
{
pstorage_ntf_cb_t cb; /**< Persistent storage operation completion callback function @ref pstorage_ntf_cb_t. */
pstorage_size_t block_size; /**< Desired block size for persistent memory storage. For example, if a module has a table with 10 entries, and each entry is 64 bytes in size,
* it can request 10 blocks with a block size of 64 bytes. The module can also request one block that is 640 bytes depending
* on how it would like to access or alter the memory in persistent memory.
* The first option is preferred when it is a single entry that needs to be updated often and doesn't impact the other entries.
* The second option is preferred when table entries are not changed individually but have a common point of loading and storing
* data. */
pstorage_size_t block_count; /** Number of blocks requested by the module; minimum values is 1. */
} pstorage_module_param_t;
/**@} */
/**@defgroup pstorage_routines Persistent Storage Access Routines
* @{
* @brief Functions/Interface SDK modules used to persistently store data.
*
* @details Interface for the Application and SDK modules to load/store information persistently.
* Note: While implementation of each of the persistent storage access functions
* depends on the system and is specific to system/solution, the signature of the
* interface routines should not be altered.
*/
/**@brief Function for initializing the module.
*
* @details Function for initializing the module. This function is called once before any other APIs
* of the module are used.
*
* @retval NRF_SUCCESS Operation success.
*/
uint32_t pstorage_init(void);
/**@brief Function for registering with persistent storage interface.
*
* @param[in] p_module_param Module registration parameter.
* @param[out] p_block_id Block identifier to identify persistent memory blocks when
* registration succeeds. Application is expected to use the block IDs
* for subsequent operations on requested persistent memory. Maximum
* registrations permitted is determined by the configuration of the
* parameter PSTORAGE_NUM_OF_PAGES. If more than one memory block is
* requested, the identifier provided here is the base identifier for the
* first block and used to identify the subsequent block. The application
* uses \@ref pstorage_block_identifier_get with this base identifier and
* block number. Therefore if 10 blocks of size 64 are requested and the
* application wishes to store memory in the 6th block, it shall use
* \@ref pstorage_block_identifier_get with the base ID and provide a
* block number of 5. This way the application is only expected to
* remember the base block identifier.
*
* @retval NRF_SUCCESS Operation success.
* @retval NRF_ERROR_INVALID_STATE Operation failure. API is called without module
* initialization.
* @retval NRF_ERROR_NULL Operation failure. NULL parameter has been passed.
* @retval NRF_ERROR_INVALID_PARAM Operation failure. Invalid parameter has been passed.
* @retval NRF_ERROR_NO_MEM Operation failure. Additional registrations can't be
* supported.
*/
uint32_t pstorage_register(pstorage_module_param_t * p_module_param,
pstorage_handle_t * p_block_id);
/**@brief Function for getting block ID with reference to base block identifier provided at the time
* of registration.
*
* @details Function to get the block ID with reference to base block identifier provided at the
* time of registration.
* If more than one memory block was requested when registering, the identifier provided
* here is the base identifier for the first block which is used to identify subsequent
* blocks. The application shall use this routine to get the block identifier, providing
* input as base identifier and block number. Therefore, if 10 blocks of size 64 are
* requested and the application wishes to store memory in the 6th block, it shall use
* \@ref pstorage_block_identifier_get with the base ID and provide a block number of 5.
* This way the application is only expected to remember the base block identifier.
*
* @param[in] p_base_id Base block ID received at the time of registration.
* @param[in] block_num Block Number, with first block numbered zero.
* @param[out] p_block_id Block identifier for the block number requested when the API succeeds.
*
* @retval NRF_SUCCESS Operation success.
* @retval NRF_ERROR_INVALID_STATE Operation failure. API is called without module
* initialization.
* @retval NRF_ERROR_NULL Operation failure. NULL parameter has been passed.
* @retval NRF_ERROR_INVALID_PARAM Operation failure. Invalid parameter has been passed.
*/
uint32_t pstorage_block_identifier_get(pstorage_handle_t * p_base_id,
pstorage_size_t block_num,
pstorage_handle_t * p_block_id);
/**@brief Function for persistently storing data of length 'size' contained in the 'p_src' address
* in the storage module at 'p_dest' address. Equivalent to Storage Write.
*
* @param[in] p_dest Destination address where data is to be stored persistently.
* @param[in] p_src Source address containing data to be stored. API assumes this to be resident
* memory and no intermediate copy of data is made by the API. Must be word
* aligned.
* @param[in] size Size of data to be stored expressed in bytes. Must be word aligned and size +
* offset must be <= block size.
* @param[in] offset Offset in bytes to be applied when writing to the block.
* For example, if within a block of 100 bytes, the application wishes to
* write 20 bytes at an offset of 12, then this field should be set to 12.
* Must be word aligned.
*
* @retval NRF_SUCCESS Operation success.
* @retval NRF_ERROR_INVALID_STATE Operation failure. API is called without module
* initialization.
* @retval NRF_ERROR_NULL Operation failure. NULL parameter has been passed.
* @retval NRF_ERROR_INVALID_PARAM Operation failure. Invalid parameter has been passed.
* @retval NRF_ERROR_INVALID_ADDR Operation failure. Parameter is not aligned.
* @retval NRF_ERROR_NO_MEM Operation failure. No storage space available.
*
* @warning No copy of the data is made, meaning memory provided for the data source that is to
* be written to flash cannot be freed or reused by the application until this procedure
* is complete. The application is notified when the procedure is finished using the
* notification callback registered by the application.
*/
uint32_t pstorage_store(pstorage_handle_t * p_dest,
uint8_t * p_src,
pstorage_size_t size,
pstorage_size_t offset);
/**@brief Function for updating persistently stored data of length 'size' contained in the 'p_src'
* address in the storage module at 'p_dest' address.
*
* @param[in] p_dest Destination address where data is to be updated.
* @param[in] p_src Source address containing data to be stored. API assumes this to be resident
* memory and no intermediate copy of data is made by the API.
* @param[in] size Size of data to be stored expressed in bytes. Must be word aligned and size +
* offset must be <= block size.
* @param[in] offset Offset in bytes to be applied when writing to the block.
* For example, if within a block of 100 bytes, the application wishes to
* write 20 bytes at an offset of 12 bytes, then this field should be set to 12.
* Must be word aligned.
*
* @retval NRF_SUCCESS Operation success.
* @retval NRF_ERROR_INVALID_STATE Operation failure. API is called without module
* initialization.
* @retval NRF_ERROR_NULL Operation failure. NULL parameter has been passed.
* @retval NRF_ERROR_INVALID_PARAM Operation failure. Invalid parameter has been passed.
* @retval NRF_ERROR_INVALID_ADDR Operation failure. Parameter is not aligned.
* @retval NRF_ERROR_NO_MEM Operation failure. No storage space available.
*
* @warning No copy of the data is made, meaning memory provided for the data source that is to
* be written to flash cannot be freed or reused by the application until this procedure
* is complete. The application is notified when the procedure is finished using the
* notification callback registered by the application.
*/
uint32_t pstorage_update(pstorage_handle_t * p_dest,
uint8_t * p_src,
pstorage_size_t size,
pstorage_size_t offset);
/**@brief Function for loading persistently stored data of length 'size' from 'p_src' address
* to 'p_dest' address. Equivalent to Storage Read.
*
* @param[in] p_dest Destination address where persistently stored data is to be loaded.
* @param[in] p_src Source where data is loaded from persistent memory.
* @param[in] size Size of data to be loaded from persistent memory expressed in bytes.
* Should be word aligned.
* @param[in] offset Offset in bytes, to be applied when loading from the block.
* For example, if within a block of 100 bytes, the application wishes to
* load 20 bytes from offset of 12 bytes, then this field should be set to 12.
* Should be word aligned.
*
* @retval NRF_SUCCESS Operation success.
* @retval NRF_ERROR_INVALID_STATE Operation failure. API is called without module
* initialization.
* @retval NRF_ERROR_NULL Operation failure. NULL parameter has been passed.
* @retval NRF_ERROR_INVALID_PARAM Operation failure. Invalid parameter has been passed.
* @retval NRF_ERROR_INVALID_ADDR Operation failure. Parameter is not aligned.
* @retval NRF_ERROR_NO_MEM Operation failure. No storage space available.
*/
uint32_t pstorage_load(uint8_t * p_dest,
pstorage_handle_t * p_src,
pstorage_size_t size,
pstorage_size_t offset);
/**@brief Function for clearing data in persistent memory.
*
* @param[in] p_base_id Base block identifier in persistent memory that needs to be cleared;
* equivalent to an Erase Operation.
* @param[in] size Size of data to be cleared from persistent memory expressed in bytes.
* This parameter is to provision for clearing of certain blocks
* of memory, or all memory blocks in a registered module. If the total size
* of the application module is used (blocks * block size) in combination with
* the identifier for the first block in the module, all blocks in the
* module will be erased. Must be multiple of block size.
*
* @retval NRF_SUCCESS Operation success.
* @retval NRF_ERROR_INVALID_STATE Operation failure. API is called without module
* initialization.
* @retval NRF_ERROR_NULL Operation failure. NULL parameter has been passed.
* @retval NRF_ERROR_INVALID_PARAM Operation failure. Invalid parameter has been passed.
* @retval NRF_ERROR_INVALID_ADDR Operation failure. Parameter is not aligned.
* @retval NRF_ERROR_NO_MEM Operation failure. No storage space available.
*
* @note Clear operations may take time. This API however, does not block until the clear
* procedure is complete. The application is notified of procedure completion using
* a notification callback registered by the application. The 'result' parameter of the
* callback indicates if the procedure was successful or not.
*/
uint32_t pstorage_clear(pstorage_handle_t * p_base_id, pstorage_size_t size);
/**@brief Function for getting the number of pending operations with the module.
*
* @param[out] p_count Number of storage operations pending with the module. If 0, there are no
* outstanding requests.
*
* @retval NRF_SUCCESS Operation success.
* @retval NRF_ERROR_INVALID_STATE Operation failure. API is called without module
* initialization.
* @retval NRF_ERROR_NULL Operation failure. NULL parameter has been passed.
*/
uint32_t pstorage_access_status_get(uint32_t * p_count);
#ifdef PSTORAGE_RAW_MODE_ENABLE
/**@brief Function for registering with the persistent storage interface.
*
* @param[in] p_module_param Module registration parameter.
* @param[out] p_block_id Block identifier used to identify persistent memory blocks upon
* successful registration. The application is expected to use the block
* IDs for subsequent operations on requested persistent memory. When
* more than one memory block is requested, this identifier is the base
* identifier for the first block and used to identify subsequent blocks.
* The application shall use \@ref pstorage_block_identifier_get with
* this base identifier and block number. Therefore if 10 blocks of size
* 64 are requested and the application wishes to store memory in the 6th
* block, it shall use \@ref pstorage_block_identifier_get with the base
* ID and provide a block number of 5. Therefore, the application is only
* expected to remember the base block identifier.
*
* @retval NRF_SUCCESS Operation success.
* @retval NRF_ERROR_INVALID_STATE Operation failure. API is called without module
* initialization.
* @retval NRF_ERROR_NULL Operation failure. NULL parameter has been passed.
* @retval NRF_ERROR_INVALID_PARAM Operation failure. Invalid parameter has been passed.
* @retval NRF_ERROR_NO_MEM Operation failure. No storage space available.
*/
uint32_t pstorage_raw_register(pstorage_module_param_t * p_module_param,
pstorage_handle_t * p_block_id);
/**@brief Function for persistently storing data of length 'size' contained in 'p_src' address in
* storage module at 'p_dest' address. Equivalent to Storage Write.
*
* @param[in] p_dest Destination address where data is to be stored persistently.
* @param[in] p_src Source address containing data to be stored. The API assumes this is resident
* memory and no intermediate copy of data is made by the API. Must be word
* aligned.
* @param[in] size Size of data to be stored expressed in bytes. Must be word aligned.
* @param[in] offset Offset in bytes to be applied when writing to the block.
* For example, if within a block of 100 bytes, the application wishes to
* write 20 bytes at an offset of 12 bytes, this field should be set to 12.
* Must be word aligned.
*
* @retval NRF_SUCCESS Operation success.
* @retval NRF_ERROR_INVALID_STATE Operation failure. API is called without module
* initialization.
* @retval NRF_ERROR_NULL Operation failure. NULL parameter has been passed.
* @retval NRF_ERROR_INVALID_PARAM Operation failure. Invalid parameter has been passed.
* @retval NRF_ERROR_INVALID_ADDR Operation failure. Parameter is not aligned.
* @retval NRF_ERROR_NO_MEM Operation failure. No storage space available.
*
* @warning No copy of the data is made, meaning memory provided for data source that is to be
* written to flash cannot be freed or reused by the application until this procedure
* is complete. The application is notified when the procedure is finished using the
* notification callback registered by the application.
*/
uint32_t pstorage_raw_store(pstorage_handle_t * p_dest,
uint8_t * p_src,
pstorage_size_t size,
pstorage_size_t offset);
/**@brief Function for clearing data in persistent memory in raw mode.
*
* @param[in] p_dest Base block identifier in persistent memory that needs to be cleared.
* Equivalent to an Erase Operation.
* @param[in] size Size of data to be cleared from persistent memory expressed in bytes.
* Not used.
*
* @retval NRF_SUCCESS Operation success.
* @retval NRF_ERROR_INVALID_STATE Operation failure. API is called without module
* initialization.
* @retval NRF_ERROR_NULL Operation failure. NULL parameter has been passed.
* @retval NRF_ERROR_INVALID_PARAM Operation failure. Invalid parameter has been passed.
* @retval NRF_ERROR_NO_MEM Operation failure. No storage space available.
*
* @note Clear operations may take time. This API, however, does not block until the clear
* procedure is complete. The application is notified of procedure completion using
* a notification callback registered by the application. The 'result' parameter of the
* callback indicates if the procedure was successful or not.
*/
uint32_t pstorage_raw_clear(pstorage_handle_t * p_dest, pstorage_size_t size);
#endif // PSTORAGE_RAW_MODE_ENABLE
/**@} */
/**@} */
#endif // PSTORAGE_H__