Added bootloader sources
This commit is contained in:
Yury Shuvakin
151
bootloader/Middlewares/Third_Party/FatFs/src/ff_gen_drv.c
vendored
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151
bootloader/Middlewares/Third_Party/FatFs/src/ff_gen_drv.c
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/**
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******************************************************************************
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* @file ff_gen_drv.c
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* @author MCD Application Team
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* @version V1.4.1
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* @date 14-February-2017
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* @brief FatFs generic low level driver.
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT 2017 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted, provided that the following conditions are met:
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*
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* 1. Redistribution of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of other
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* contributors to this software may be used to endorse or promote products
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* derived from this software without specific written permission.
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* 4. This software, including modifications and/or derivative works of this
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* software, must execute solely and exclusively on microcontroller or
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* microprocessor devices manufactured by or for STMicroelectronics.
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* 5. Redistribution and use of this software other than as permitted under
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* this license is void and will automatically terminate your rights under
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* this license.
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*
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* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
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* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
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* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "ff_gen_drv.h"
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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Disk_drvTypeDef disk = {{0},{0},{0},0};
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/* Private function prototypes -----------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief Links a compatible diskio driver/lun id and increments the number of active
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* linked drivers.
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* @note The number of linked drivers (volumes) is up to 10 due to FatFs limits.
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* @param drv: pointer to the disk IO Driver structure
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* @param path: pointer to the logical drive path
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* @param lun : only used for USB Key Disk to add multi-lun management
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else the paramter must be equal to 0
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* @retval Returns 0 in case of success, otherwise 1.
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*/
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uint8_t FATFS_LinkDriverEx(Diskio_drvTypeDef *drv, char *path, uint8_t lun)
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{
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uint8_t ret = 1;
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uint8_t DiskNum = 0;
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if(disk.nbr <= _VOLUMES)
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{
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disk.is_initialized[disk.nbr] = 0;
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disk.drv[disk.nbr] = drv;
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disk.lun[disk.nbr] = lun;
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DiskNum = disk.nbr++;
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path[0] = DiskNum + '0';
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path[1] = ':';
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path[2] = '/';
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path[3] = 0;
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ret = 0;
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}
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return ret;
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}
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/**
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* @brief Links a compatible diskio driver and increments the number of active
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* linked drivers.
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* @note The number of linked drivers (volumes) is up to 10 due to FatFs limits
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* @param drv: pointer to the disk IO Driver structure
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* @param path: pointer to the logical drive path
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* @retval Returns 0 in case of success, otherwise 1.
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*/
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uint8_t FATFS_LinkDriver(Diskio_drvTypeDef *drv, char *path)
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{
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return FATFS_LinkDriverEx(drv, path, 0);
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}
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/**
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* @brief Unlinks a diskio driver and decrements the number of active linked
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* drivers.
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* @param path: pointer to the logical drive path
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* @param lun : not used
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* @retval Returns 0 in case of success, otherwise 1.
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*/
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uint8_t FATFS_UnLinkDriverEx(char *path, uint8_t lun)
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{
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uint8_t DiskNum = 0;
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uint8_t ret = 1;
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if(disk.nbr >= 1)
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{
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DiskNum = path[0] - '0';
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if(disk.drv[DiskNum] != 0)
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{
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disk.drv[DiskNum] = 0;
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disk.lun[DiskNum] = 0;
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disk.nbr--;
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ret = 0;
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}
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}
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return ret;
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}
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/**
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* @brief Unlinks a diskio driver and decrements the number of active linked
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* drivers.
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* @param path: pointer to the logical drive path
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* @retval Returns 0 in case of success, otherwise 1.
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*/
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uint8_t FATFS_UnLinkDriver(char *path)
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{
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return FATFS_UnLinkDriverEx(path, 0);
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}
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/**
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* @brief Gets number of linked drivers to the FatFs module.
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* @param None
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* @retval Number of attached drivers.
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*/
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uint8_t FATFS_GetAttachedDriversNbr(void)
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{
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return disk.nbr;
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}
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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