125 lines
3.9 KiB
C
125 lines
3.9 KiB
C
/*
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ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @file hal_flash.c
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* @brief Generic flash driver class code.
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*
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* @addtogroup HAL_FLASH
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* @{
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*/
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#include "hal.h"
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#include "hal_flash.h"
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local variables and types. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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/**
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* @brief Waits until the current erase operation is finished.
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*
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* @param[in] devp pointer to a @p BaseFlash object
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*
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* @return An error code.
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* @retval FLASH_NO_ERROR if there is no erase operation in progress.
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* @retval FLASH_ERROR_ERASE if the erase operation failed.
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*/
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flash_error_t flashWaitErase(BaseFlash *devp) {
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while (true) {
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flash_error_t err;
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uint32_t msec;
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/* Checking operation state.*/
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err = flashQueryErase(devp, &msec);
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if (err != FLASH_BUSY_ERASING) {
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return err;
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}
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/* Interval because nice waiting.*/
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osalThreadSleepMilliseconds(msec);
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}
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}
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/**
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* @brief Returns the offset of a sector.
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*
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* @param[in] devp pointer to a @p BaseFlash object
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* @param[in] sector flash sector number
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*
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* @return the offset of the sector
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*/
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flash_offset_t flashGetSectorOffset(BaseFlash *devp,
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flash_sector_t sector) {
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flash_offset_t offset;
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const flash_descriptor_t *descriptor = flashGetDescriptor(devp);
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osalDbgAssert(sector < descriptor->sectors_count, "invalid sector");
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if (descriptor->sectors != NULL) {
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offset = descriptor->sectors[sector].offset;
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}
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else {
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offset = (flash_offset_t)sector * (flash_offset_t)descriptor->sectors_size;
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}
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return offset;
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}
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/**
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* @brief Returns the size of a sector.
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*
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* @param[in] devp pointer to a @p BaseFlash object
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* @param[in] sector flash sector number
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*
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* @return the size of the sector
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*/
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uint32_t flashGetSectorSize(BaseFlash *devp,
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flash_sector_t sector) {
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uint32_t size;
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const flash_descriptor_t *descriptor = flashGetDescriptor(devp);
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osalDbgAssert(sector < descriptor->sectors_count, "invalid sector");
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if (descriptor->sectors != NULL) {
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size = descriptor->sectors[sector].size;
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}
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else {
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size = descriptor->sectors_size;
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}
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return size;
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}
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/** @} */
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