/* * Copyright (c) 2013-2020 ARM Limited. All rights reserved. * * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the License); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an AS IS BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * $Date: 24. January 2020 * $Revision: V2.3 * * Project: Flash Driver definitions */ /* History: * Version 2.3 * Removed volatile from ARM_FLASH_STATUS * Version 2.2 * Padding bytes added to ARM_FLASH_INFO * Version 2.1 * ARM_FLASH_STATUS made volatile * Version 2.0 * Renamed driver NOR -> Flash (more generic) * Non-blocking operation * Added Events, Status and Capabilities * Linked Flash information (GetInfo) * Version 1.11 * Changed prefix ARM_DRV -> ARM_DRIVER * Version 1.10 * Namespace prefix ARM_ added * Version 1.00 * Initial release */ #ifndef DRIVER_FLASH_H_ #define DRIVER_FLASH_H_ #ifdef __cplusplus extern "C" { #endif #include "Driver_Common.h" #define ARM_FLASH_API_VERSION ARM_DRIVER_VERSION_MAJOR_MINOR(2,3) /* API version */ #define _ARM_Driver_Flash_(n) Driver_Flash##n #define ARM_Driver_Flash_(n) _ARM_Driver_Flash_(n) #define ARM_FLASH_SECTOR_INFO(addr,size) { (addr), (addr)+(size)-1 } /** \brief Flash Sector information */ typedef struct _ARM_FLASH_SECTOR { uint32_t start; ///< Sector Start address uint32_t end; ///< Sector End address (start+size-1) } const ARM_FLASH_SECTOR; /** \brief Flash information */ typedef struct _ARM_FLASH_INFO { ARM_FLASH_SECTOR *sector_info; ///< Sector layout information (NULL=Uniform sectors) uint32_t sector_count; ///< Number of sectors uint32_t sector_size; ///< Uniform sector size in bytes (0=sector_info used) uint32_t page_size; ///< Optimal programming page size in bytes uint32_t program_unit; ///< Smallest programmable unit in bytes uint8_t erased_value; ///< Contents of erased memory (usually 0xFF) uint8_t reserved[3]; ///< Reserved (must be zero) } const ARM_FLASH_INFO; /** \brief Flash Status */ typedef struct _ARM_FLASH_STATUS { uint32_t busy : 1; ///< Flash busy flag uint32_t error : 1; ///< Read/Program/Erase error flag (cleared on start of next operation) uint32_t reserved : 30; } ARM_FLASH_STATUS; /****** Flash Event *****/ #define ARM_FLASH_EVENT_READY (1UL << 0) ///< Flash Ready #define ARM_FLASH_EVENT_ERROR (1UL << 1) ///< Read/Program/Erase Error // Function documentation /** \fn ARM_DRIVER_VERSION ARM_Flash_GetVersion (void) \brief Get driver version. \return \ref ARM_DRIVER_VERSION */ /** \fn ARM_FLASH_CAPABILITIES ARM_Flash_GetCapabilities (void) \brief Get driver capabilities. \return \ref ARM_FLASH_CAPABILITIES */ /** \fn int32_t ARM_Flash_Initialize (ARM_Flash_SignalEvent_t cb_event) \brief Initialize the Flash Interface. \param[in] cb_event Pointer to \ref ARM_Flash_SignalEvent \return \ref execution_status */ /** \fn int32_t ARM_Flash_Uninitialize (void) \brief De-initialize the Flash Interface. \return \ref execution_status */ /** \fn int32_t ARM_Flash_PowerControl (ARM_POWER_STATE state) \brief Control the Flash interface power. \param[in] state Power state \return \ref execution_status */ /** \fn int32_t ARM_Flash_ReadData (uint32_t addr, void *data, uint32_t cnt) \brief Read data from Flash. \param[in] addr Data address. \param[out] data Pointer to a buffer storing the data read from Flash. \param[in] cnt Number of data items to read. \return number of data items read or \ref execution_status */ /** \fn int32_t ARM_Flash_ProgramData (uint32_t addr, const void *data, uint32_t cnt) \brief Program data to Flash. \param[in] addr Data address. \param[in] data Pointer to a buffer containing the data to be programmed to Flash. \param[in] cnt Number of data items to program. \return number of data items programmed or \ref execution_status */ /** \fn int32_t ARM_Flash_EraseSector (uint32_t addr) \brief Erase Flash Sector. \param[in] addr Sector address \return \ref execution_status */ /** \fn int32_t ARM_Flash_EraseChip (void) \brief Erase complete Flash. Optional function for faster full chip erase. \return \ref execution_status */ /** \fn ARM_FLASH_STATUS ARM_Flash_GetStatus (void) \brief Get Flash status. \return Flash status \ref ARM_FLASH_STATUS */ /** \fn ARM_FLASH_INFO * ARM_Flash_GetInfo (void) \brief Get Flash information. \return Pointer to Flash information \ref ARM_FLASH_INFO */ /** \fn void ARM_Flash_SignalEvent (uint32_t event) \brief Signal Flash event. \param[in] event Event notification mask \return none */ typedef void (*ARM_Flash_SignalEvent_t) (uint32_t event); ///< Pointer to \ref ARM_Flash_SignalEvent : Signal Flash Event. /** \brief Flash Driver Capabilities. */ typedef struct _ARM_FLASH_CAPABILITIES { uint32_t event_ready : 1; ///< Signal Flash Ready event uint32_t data_width : 2; ///< Data width: 0=8-bit, 1=16-bit, 2=32-bit uint32_t erase_chip : 1; ///< Supports EraseChip operation uint32_t reserved : 28; ///< Reserved (must be zero) } ARM_FLASH_CAPABILITIES; /** \brief Access structure of the Flash Driver */ typedef struct _ARM_DRIVER_FLASH { ARM_DRIVER_VERSION (*GetVersion) (void); ///< Pointer to \ref ARM_Flash_GetVersion : Get driver version. ARM_FLASH_CAPABILITIES (*GetCapabilities)(void); ///< Pointer to \ref ARM_Flash_GetCapabilities : Get driver capabilities. int32_t (*Initialize) (ARM_Flash_SignalEvent_t cb_event); ///< Pointer to \ref ARM_Flash_Initialize : Initialize Flash Interface. int32_t (*Uninitialize) (void); ///< Pointer to \ref ARM_Flash_Uninitialize : De-initialize Flash Interface. int32_t (*PowerControl) (ARM_POWER_STATE state); ///< Pointer to \ref ARM_Flash_PowerControl : Control Flash Interface Power. int32_t (*ReadData) (uint32_t addr, void *data, uint32_t cnt); ///< Pointer to \ref ARM_Flash_ReadData : Read data from Flash. int32_t (*ProgramData) (uint32_t addr, const void *data, uint32_t cnt); ///< Pointer to \ref ARM_Flash_ProgramData : Program data to Flash. int32_t (*EraseSector) (uint32_t addr); ///< Pointer to \ref ARM_Flash_EraseSector : Erase Flash Sector. int32_t (*EraseChip) (void); ///< Pointer to \ref ARM_Flash_EraseChip : Erase complete Flash. ARM_FLASH_STATUS (*GetStatus) (void); ///< Pointer to \ref ARM_Flash_GetStatus : Get Flash status. ARM_FLASH_INFO * (*GetInfo) (void); ///< Pointer to \ref ARM_Flash_GetInfo : Get Flash information. } const ARM_DRIVER_FLASH; #ifdef __cplusplus } #endif #endif /* DRIVER_FLASH_H_ */