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| 1 | +/*-----------------------------------------------------------------------*/ |
| 2 | +/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2014 */ |
| 3 | +/* */ |
| 4 | +/* Portions COPYRIGHT 2017 STMicroelectronics */ |
| 5 | +/* Portions Copyright (C) 2014, ChaN, all right reserved */ |
| 6 | +/*-----------------------------------------------------------------------*/ |
| 7 | +/* If a working storage control module is available, it should be */ |
| 8 | +/* attached to the FatFs via a glue function rather than modifying it. */ |
| 9 | +/* This is an example of glue functions to attach various exsisting */ |
| 10 | +/* storage control modules to the FatFs module with a defined API. */ |
| 11 | +/*-----------------------------------------------------------------------*/ |
| 12 | + |
| 13 | +/** |
| 14 | + ****************************************************************************** |
| 15 | + * @file diskio.c |
| 16 | + * @author MCD Application Team |
| 17 | + * @version V1.4.1 |
| 18 | + * @date 14-February-2017 |
| 19 | + * @brief FatFs low level disk I/O module. |
| 20 | + ****************************************************************************** |
| 21 | + * @attention |
| 22 | + * |
| 23 | + * |
| 24 | + * Redistribution and use in source and binary forms, with or without |
| 25 | + * modification, are permitted, provided that the following conditions are met: |
| 26 | + * |
| 27 | + * 1. Redistribution of source code must retain the above copyright notice, |
| 28 | + * this list of conditions and the following disclaimer. |
| 29 | + * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 30 | + * this list of conditions and the following disclaimer in the documentation |
| 31 | + * and/or other materials provided with the distribution. |
| 32 | + * 3. Neither the name of STMicroelectronics nor the names of other |
| 33 | + * contributors to this software may be used to endorse or promote products |
| 34 | + * derived from this software without specific written permission. |
| 35 | + * 4. This software, including modifications and/or derivative works of this |
| 36 | + * software, must execute solely and exclusively on microcontroller or |
| 37 | + * microprocessor devices manufactured by or for STMicroelectronics. |
| 38 | + * 5. Redistribution and use of this software other than as permitted under |
| 39 | + * this license is void and will automatically terminate your rights under |
| 40 | + * this license. |
| 41 | + * |
| 42 | + * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS" |
| 43 | + * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT |
| 44 | + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A |
| 45 | + * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY |
| 46 | + * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT |
| 47 | + * SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 48 | + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 49 | + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, |
| 50 | + * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 51 | + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 52 | + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| 53 | + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 54 | + * |
| 55 | + ****************************************************************************** |
| 56 | + */ |
| 57 | + |
| 58 | +/* Includes ------------------------------------------------------------------*/ |
| 59 | +#include "diskio.h" |
| 60 | +#include "ff_gen_drv.h" |
| 61 | + |
| 62 | +/* Private typedef -----------------------------------------------------------*/ |
| 63 | +/* Private define ------------------------------------------------------------*/ |
| 64 | +/* Private variables ---------------------------------------------------------*/ |
| 65 | +extern Disk_drvTypeDef disk; |
| 66 | + |
| 67 | +/* Private function prototypes -----------------------------------------------*/ |
| 68 | +/* Private functions ---------------------------------------------------------*/ |
| 69 | + |
| 70 | +/** |
| 71 | + * @brief Gets Disk Status |
| 72 | + * @param pdrv: Physical drive number (0..) |
| 73 | + * @retval DSTATUS: Operation status |
| 74 | + */ |
| 75 | +DSTATUS disk_status ( |
| 76 | + BYTE pdrv /* Physical drive nmuber to identify the drive */ |
| 77 | +) |
| 78 | +{ |
| 79 | + DSTATUS stat; |
| 80 | + |
| 81 | + stat = disk.drv[pdrv]->disk_status(disk.lun[pdrv]); |
| 82 | + return stat; |
| 83 | +} |
| 84 | + |
| 85 | +/** |
| 86 | + * @brief Initializes a Drive |
| 87 | + * @param pdrv: Physical drive number (0..) |
| 88 | + * @retval DSTATUS: Operation status |
| 89 | + */ |
| 90 | +DSTATUS disk_initialize ( |
| 91 | + BYTE pdrv /* Physical drive nmuber to identify the drive */ |
| 92 | +) |
| 93 | +{ |
| 94 | + DSTATUS stat = RES_OK; |
| 95 | + |
| 96 | + if(disk.is_initialized[pdrv] == 0) |
| 97 | + { |
| 98 | + disk.is_initialized[pdrv] = 1; |
| 99 | + stat = disk.drv[pdrv]->disk_initialize(disk.lun[pdrv]); |
| 100 | + } |
| 101 | + return stat; |
| 102 | +} |
| 103 | + |
| 104 | +/** |
| 105 | + * @brief Reads Sector(s) |
| 106 | + * @param pdrv: Physical drive number (0..) |
| 107 | + * @param *buff: Data buffer to store read data |
| 108 | + * @param sector: Sector address (LBA) |
| 109 | + * @param count: Number of sectors to read (1..128) |
| 110 | + * @retval DRESULT: Operation result |
| 111 | + */ |
| 112 | +DRESULT disk_read ( |
| 113 | + BYTE pdrv, /* Physical drive nmuber to identify the drive */ |
| 114 | + BYTE *buff, /* Data buffer to store read data */ |
| 115 | + DWORD sector, /* Sector address in LBA */ |
| 116 | + UINT count /* Number of sectors to read */ |
| 117 | +) |
| 118 | +{ |
| 119 | + DRESULT res; |
| 120 | + |
| 121 | + res = disk.drv[pdrv]->disk_read(disk.lun[pdrv], buff, sector, count); |
| 122 | + return res; |
| 123 | +} |
| 124 | + |
| 125 | +/** |
| 126 | + * @brief Writes Sector(s) |
| 127 | + * @param pdrv: Physical drive number (0..) |
| 128 | + * @param *buff: Data to be written |
| 129 | + * @param sector: Sector address (LBA) |
| 130 | + * @param count: Number of sectors to write (1..128) |
| 131 | + * @retval DRESULT: Operation result |
| 132 | + */ |
| 133 | +#if _USE_WRITE == 1 |
| 134 | +DRESULT disk_write ( |
| 135 | + BYTE pdrv, /* Physical drive nmuber to identify the drive */ |
| 136 | + const BYTE *buff, /* Data to be written */ |
| 137 | + DWORD sector, /* Sector address in LBA */ |
| 138 | + UINT count /* Number of sectors to write */ |
| 139 | +) |
| 140 | +{ |
| 141 | + DRESULT res; |
| 142 | + |
| 143 | + res = disk.drv[pdrv]->disk_write(disk.lun[pdrv], buff, sector, count); |
| 144 | + return res; |
| 145 | +} |
| 146 | +#endif /* _USE_WRITE == 1 */ |
| 147 | + |
| 148 | +/** |
| 149 | + * @brief I/O control operation |
| 150 | + * @param pdrv: Physical drive number (0..) |
| 151 | + * @param cmd: Control code |
| 152 | + * @param *buff: Buffer to send/receive control data |
| 153 | + * @retval DRESULT: Operation result |
| 154 | + */ |
| 155 | +#if _USE_IOCTL == 1 |
| 156 | +DRESULT disk_ioctl ( |
| 157 | + BYTE pdrv, /* Physical drive nmuber (0..) */ |
| 158 | + BYTE cmd, /* Control code */ |
| 159 | + void *buff /* Buffer to send/receive control data */ |
| 160 | +) |
| 161 | +{ |
| 162 | + DRESULT res; |
| 163 | + |
| 164 | + res = disk.drv[pdrv]->disk_ioctl(disk.lun[pdrv], cmd, buff); |
| 165 | + return res; |
| 166 | +} |
| 167 | +#endif /* _USE_IOCTL == 1 */ |
| 168 | + |
| 169 | +/** |
| 170 | + * @brief Gets Time from RTC |
| 171 | + * @param None |
| 172 | + * @retval Time in DWORD |
| 173 | + */ |
| 174 | +__weak DWORD get_fattime (void) |
| 175 | +{ |
| 176 | + return 0; |
| 177 | +} |
| 178 | + |
| 179 | +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
| 180 | + |
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