266 lines
8.8 KiB
C
266 lines
8.8 KiB
C
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/**
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* \file
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*
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* \brief FLASH related functionality declaration.
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*
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* Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
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*
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* \asf_license_start
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*
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* \page License
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*
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* Subject to your compliance with these terms, you may use Microchip
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* software and any derivatives exclusively with Microchip products.
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* It is your responsibility to comply with third party license terms applicable
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* to your use of third party software (including open source software) that
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* may accompany Microchip software.
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*
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* THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
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* WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
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* INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
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* AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
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* LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
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* LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
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* SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
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* POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT
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* ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
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* RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
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* THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
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*
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* \asf_license_stop
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*
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*/
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#ifndef _HPL_FLASH_H_INCLUDED
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#define _HPL_FLASH_H_INCLUDED
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/**
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* \addtogroup hpl__flash__group FLASH HPL APIs
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*
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*/
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/**@{*/
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#include <compiler.h>
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#include "hpl_irq.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \brief FLASH device structure
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*
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* The FLASH device structure forward declaration.
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*/
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struct _flash_device;
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/** The callback types */
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enum _flash_cb_type { FLASH_DEVICE_CB_READY, FLASH_DEVICE_CB_ERROR, FLASH_DEVICE_CB_N };
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/**
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* \brief FLASH interrupt handlers structure
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*/
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struct _flash_callback {
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/** Ready to accept new command handler */
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void (*ready_cb)(struct _flash_device *device);
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/** Error handler */
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void (*error_cb)(struct _flash_device *device);
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};
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/**
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* \brief FLASH descriptor device structure.
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*/
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struct _flash_device {
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struct _flash_callback flash_cb; /*!< Interrupt handers */
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struct _irq_descriptor irq; /*!< Interrupt descriptor */
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void * hw; /*!< Hardware module instance handler */
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};
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/**
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* \brief Initialize FLASH.
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*
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* This function does low level FLASH configuration.
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*
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* \param[in] device The pointer to FLASH device instance
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* \param[in] hw The pointer to hardware instance
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*
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* \return Initialize status.
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*/
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int32_t _flash_init(struct _flash_device *const device, void *const hw);
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/**
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* \brief Deinitialize FLASH.
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*
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* \param[in] device The pointer to FLASH device instance
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*/
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void _flash_deinit(struct _flash_device *const device);
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/**
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* \brief Reads a number of bytes in the internal Flash.
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*
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* \param[in] device The pointer to FLASH device instance
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* \param[in] src_addr Source bytes address to read from flash
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* \param[out] buffer Pointer to a buffer where the content
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* of the read page will be stored
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* \param[in] length Number of bytes to read
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*/
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void _flash_read(struct _flash_device *const device, const uint32_t src_addr, uint8_t *buffer, uint32_t length);
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/**
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* \brief Writes a number of bytes in the internal Flash.
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*
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* \param[in] device The pointer to FLASH device instance
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* \param[in] dst_addr Destination bytes address to write into flash
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* \param[in] buffer Pointer to buffer where the data to
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* write is stored
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* \param[in] length Number of bytes to write
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*/
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void _flash_write(struct _flash_device *const device, const uint32_t dst_addr, uint8_t *buffer, uint32_t length);
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/**
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* \brief Appends a number of bytes in the internal Flash.
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*
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* \param[in] device The pointer to FLASH device instance
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* \param[in] dst_addr Destination bytes address to write into flash
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* \param[in] buffer Pointer to buffer with data to write to flash
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* \param[in] length Number of bytes to write
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*/
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void _flash_append(struct _flash_device *const device, const uint32_t dst_addr, uint8_t *buffer, uint32_t length);
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/** \brief Execute lock in the internal flash
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* \param[in] device The pointer to FLASH device instance
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* \param[in] dst_addr Destination bytes address aligned with page
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* start to be locked
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* \param[in] page_nums Number of pages to be locked
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*
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* \return Real locked numbers of pages.
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*/
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int32_t _flash_lock(struct _flash_device *const device, const uint32_t dst_addr, uint32_t page_nums);
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/** \brief Execute unlock in the internal flash
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* \param[in] device The pointer to FLASH device instance
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* \param[in] dst_addr Destination bytes address aligned with page
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* start to be unlocked
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* \param[in] page_nums Number of pages to be unlocked
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*
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* \return Real unlocked numbers of pages.
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*/
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int32_t _flash_unlock(struct _flash_device *const device, const uint32_t dst_addr, uint32_t page_nums);
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/** \brief check whether the region which is pointed by address
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* is locked
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* \param[in] device The pointer to FLASH device instance
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* \param[in] dst_addr Destination bytes address to check
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*
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* \return The lock status of assigned address.
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*/
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bool _flash_is_locked(struct _flash_device *const device, const uint32_t dst_addr);
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/** \brief Execute erase in the internal flash
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* \param[in] device The pointer to FLASH device instance
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* \param[in] dst_addr Destination bytes address aligned with page
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* start to be erased
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* \param[in] page_nums Number of pages to be erased
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*/
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void _flash_erase(struct _flash_device *const device, const uint32_t dst_addr, uint32_t page_nums);
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/**
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* \brief Get the flash page size.
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*
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* \param[in] device The pointer to FLASH device instance
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*
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* \return The flash page size
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*/
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uint32_t _flash_get_page_size(struct _flash_device *const device);
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/**
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* \brief Get the numbers of flash page.
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*
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* \param[in] device The pointer to FLASH device instance
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*
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* \return The flash total page numbers
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*/
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uint32_t _flash_get_total_pages(struct _flash_device *const device);
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/**
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* \brief Get the number of wait states for read and write operations.
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*
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* \param[in] device The pointer to FLASH device instance
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*
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* \return The number of wait states for read and write operations
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*/
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uint8_t _flash_get_wait_state(struct _flash_device *const device);
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/**
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* \brief Set the number of wait states for read and write operations.
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*
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* \param[in] device The pointer to FLASH device instance
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* \param[in] state The number of wait states
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*
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*/
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void _flash_set_wait_state(struct _flash_device *const device, uint8_t state);
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/**
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* \brief Enable/disable Flash interrupt
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*
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* param[in] device The pointer to Flash device instance
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* param[in] type The type of interrupt to disable/enable if applicable
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* param[in] state Enable or disable
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*/
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void _flash_set_irq_state(struct _flash_device *const device, const enum _flash_cb_type type, const bool state);
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/*
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* Below RWW flash APIs are only available for device which has RWWEE
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* flash array, such as SAM C20/C21/D21/L21/L22/R30/DA1/HA1 etc.
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*/
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/**
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* \brief Get the RWWEE flash page size.
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*
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* \param[in] device The pointer to FLASH device instance
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*
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* \return The flash page size
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*/
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uint32_t _rww_flash_get_page_size(struct _flash_device *const device);
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/**
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* \brief Get the total page numbers of RWWEE flash.
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*
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* \param[in] device The pointer to FLASH device instance
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*
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* \return The flash total page numbers
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*/
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uint32_t _rww_flash_get_total_pages(struct _flash_device *const device);
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/**
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* \brief Reads a number of bytes in the internal RWWEE Flash.
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*
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* \param[in] device The pointer to FLASH device instance
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* \param[in] src_addr Source bytes address to read from flash
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* \param[out] buffer Pointer to a buffer where the content
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* of the read page will be stored
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* \param[in] length Number of bytes to read
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*
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* \return Read status, ERR_NONE for successful read.
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*/
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int32_t _rww_flash_read(struct _flash_device *const device, const uint32_t src_addr, uint8_t *buffer, uint32_t length);
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/**
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* \brief Writes a number of bytes in the internal RWWEE Flash.
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*
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* \param[in] device The pointer to FLASH device instance
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* \param[in] dst_addr Destination bytes address to write into flash
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* \param[in] buffer Pointer to buffer where the data to
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* write is stored
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* \param[in] length Number of bytes to write
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*
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* \return Write status, ERR_NONE for successful write.
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*/
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int32_t _rww_flash_write(struct _flash_device *const device, const uint32_t dst_addr, uint8_t *buffer, uint32_t length);
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#ifdef __cplusplus
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}
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#endif
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/**@}*/
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#endif /* _HPL_FLASH_H_INCLUDED */
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