From 0758e3fac86d799e54c6fa9fd8958fbaf516efe3 Mon Sep 17 00:00:00 2001 From: angoosh Date: Thu, 15 Jul 2021 08:50:56 +0200 Subject: [PATCH] added fatfs spi driver --- FATFS/Target/README.md | 6 + FATFS/Target/user_diskio.c | 174 +++++++++++ FATFS/Target/user_diskio_spi.c | 550 +++++++++++++++++++++++++++++++++ FATFS/Target/user_diskio_spi.h | 38 +++ 4 files changed, 768 insertions(+) create mode 100644 FATFS/Target/README.md create mode 100644 FATFS/Target/user_diskio.c create mode 100644 FATFS/Target/user_diskio_spi.c create mode 100644 FATFS/Target/user_diskio_spi.h diff --git a/FATFS/Target/README.md b/FATFS/Target/README.md new file mode 100644 index 0000000..5d978c5 --- /dev/null +++ b/FATFS/Target/README.md @@ -0,0 +1,6 @@ +In main.h add: +´´´ +#define SD_SPI_HANDLE hspi3 +´´´ + +name CS pin for sd card: SD_CS diff --git a/FATFS/Target/user_diskio.c b/FATFS/Target/user_diskio.c new file mode 100644 index 0000000..3f0c657 --- /dev/null +++ b/FATFS/Target/user_diskio.c @@ -0,0 +1,174 @@ +/* USER CODE BEGIN Header */ +/** + ****************************************************************************** + * @file user_diskio.c + * @brief This file includes a diskio driver skeleton to be completed by the user. + ****************************************************************************** + * @attention + * + *

© Copyright (c) 2021 STMicroelectronics. + * All rights reserved.

+ * + * This software component is licensed by ST under Ultimate Liberty license + * SLA0044, the "License"; You may not use this file except in compliance with + * the License. You may obtain a copy of the License at: + * www.st.com/SLA0044 + * + ****************************************************************************** + */ + /* USER CODE END Header */ + +#ifdef USE_OBSOLETE_USER_CODE_SECTION_0 +/* + * Warning: the user section 0 is no more in use (starting from CubeMx version 4.16.0) + * To be suppressed in the future. + * Kept to ensure backward compatibility with previous CubeMx versions when + * migrating projects. + * User code previously added there should be copied in the new user sections before + * the section contents can be deleted. + */ +/* USER CODE BEGIN 0 */ +/* USER CODE END 0 */ +#endif + +/* USER CODE BEGIN DECL */ + +/* Includes ------------------------------------------------------------------*/ +#include +#include "ff_gen_drv.h" +#include "user_diskio_spi.h" +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ + +/* Private variables ---------------------------------------------------------*/ +/* Disk status */ +static volatile DSTATUS Stat = STA_NOINIT; + +/* USER CODE END DECL */ + +/* Private function prototypes -----------------------------------------------*/ +DSTATUS USER_initialize (BYTE pdrv); +DSTATUS USER_status (BYTE pdrv); +DRESULT USER_read (BYTE pdrv, BYTE *buff, DWORD sector, UINT count); +#if _USE_WRITE == 1 + DRESULT USER_write (BYTE pdrv, const BYTE *buff, DWORD sector, UINT count); +#endif /* _USE_WRITE == 1 */ +#if _USE_IOCTL == 1 + DRESULT USER_ioctl (BYTE pdrv, BYTE cmd, void *buff); +#endif /* _USE_IOCTL == 1 */ + +Diskio_drvTypeDef USER_Driver = +{ + USER_initialize, + USER_status, + USER_read, +#if _USE_WRITE + USER_write, +#endif /* _USE_WRITE == 1 */ +#if _USE_IOCTL == 1 + USER_ioctl, +#endif /* _USE_IOCTL == 1 */ +}; + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Initializes a Drive + * @param pdrv: Physical drive number (0..) + * @retval DSTATUS: Operation status + */ +DSTATUS USER_initialize ( + BYTE pdrv /* Physical drive nmuber to identify the drive */ +) +{ + /* USER CODE BEGIN INIT */ + return USER_SPI_initialize(pdrv); + //Stat = STA_NOINIT; + //return Stat; + /* USER CODE END INIT */ +} + +/** + * @brief Gets Disk Status + * @param pdrv: Physical drive number (0..) + * @retval DSTATUS: Operation status + */ +DSTATUS USER_status ( + BYTE pdrv /* Physical drive number to identify the drive */ +) +{ + /* USER CODE BEGIN STATUS */ + return USER_SPI_status(pdrv); + //Stat = STA_NOINIT; + //return Stat; + /* USER CODE END STATUS */ +} + +/** + * @brief Reads Sector(s) + * @param pdrv: Physical drive number (0..) + * @param *buff: Data buffer to store read data + * @param sector: Sector address (LBA) + * @param count: Number of sectors to read (1..128) + * @retval DRESULT: Operation result + */ +DRESULT USER_read ( + BYTE pdrv, /* Physical drive nmuber to identify the drive */ + BYTE *buff, /* Data buffer to store read data */ + DWORD sector, /* Sector address in LBA */ + UINT count /* Number of sectors to read */ +) +{ + /* USER CODE BEGIN READ */ + return USER_SPI_read(pdrv, buff, sector, count); + //return RES_OK; + /* USER CODE END READ */ +} + +/** + * @brief Writes Sector(s) + * @param pdrv: Physical drive number (0..) + * @param *buff: Data to be written + * @param sector: Sector address (LBA) + * @param count: Number of sectors to write (1..128) + * @retval DRESULT: Operation result + */ +#if _USE_WRITE == 1 +DRESULT USER_write ( + BYTE pdrv, /* Physical drive nmuber to identify the drive */ + const BYTE *buff, /* Data to be written */ + DWORD sector, /* Sector address in LBA */ + UINT count /* Number of sectors to write */ +) +{ + /* USER CODE BEGIN WRITE */ + /* USER CODE HERE */ + return USER_SPI_write(pdrv, buff, sector, count); + //return RES_OK; + /* USER CODE END WRITE */ +} +#endif /* _USE_WRITE == 1 */ + +/** + * @brief I/O control operation + * @param pdrv: Physical drive number (0..) + * @param cmd: Control code + * @param *buff: Buffer to send/receive control data + * @retval DRESULT: Operation result + */ +#if _USE_IOCTL == 1 +DRESULT USER_ioctl ( + BYTE pdrv, /* Physical drive nmuber (0..) */ + BYTE cmd, /* Control code */ + void *buff /* Buffer to send/receive control data */ +) +{ + /* USER CODE BEGIN IOCTL */ + return USER_SPI_ioctl(pdrv, cmd, buff); + //DRESULT res = RES_ERROR; + //return res; + /* USER CODE END IOCTL */ +} +#endif /* _USE_IOCTL == 1 */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ diff --git a/FATFS/Target/user_diskio_spi.c b/FATFS/Target/user_diskio_spi.c new file mode 100644 index 0000000..ba74f1e --- /dev/null +++ b/FATFS/Target/user_diskio_spi.c @@ -0,0 +1,550 @@ +/** + ****************************************************************************** + * @file user_diskio_spi.c + * @brief This file contains the implementation of the user_diskio_spi FatFs + * driver. + ****************************************************************************** + * Portions copyright (C) 2014, ChaN, all rights reserved. + * Portions copyright (C) 2017, kiwih, all rights reserved. + * + * This software is a free software and there is NO WARRANTY. + * No restriction on use. You can use, modify and redistribute it for + * personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY. + * Redistributions of source code must retain the above copyright notice. + * + ****************************************************************************** + */ + +//This code was ported by kiwih from a copywrited (C) library written by ChaN +//available at http://elm-chan.org/fsw/ff/ffsample.zip +//(text at http://elm-chan.org/fsw/ff/00index_e.html) + +//This file provides the FatFs driver functions and SPI code required to manage +//an SPI-connected MMC or compatible SD card with FAT + +//It is designed to be wrapped by a cubemx generated user_diskio.c file. + +#include "stm32f7xx_hal.h" /* Provide the low-level HAL functions */ +#include "user_diskio_spi.h" + +//Make sure you set #define SD_SPI_HANDLE as some hspix in main.h +//Make sure you set #define SD_CS_GPIO_Port as some GPIO port in main.h +//Make sure you set #define SD_CS_Pin as some GPIO pin in main.h +extern SPI_HandleTypeDef SD_SPI_HANDLE; + +/* Function prototypes */ + +//(Note that the _256 is used as a mask to clear the prescalar bits as it provides binary 111 in the correct position) +#define FCLK_SLOW() { MODIFY_REG(SD_SPI_HANDLE.Instance->CR1, SPI_BAUDRATEPRESCALER_256, SPI_BAUDRATEPRESCALER_256); } /* Set SCLK = slow, approx 280 KBits/s*/ +#define FCLK_FAST() { MODIFY_REG(SD_SPI_HANDLE.Instance->CR1, SPI_BAUDRATEPRESCALER_256, SPI_BAUDRATEPRESCALER_16); } /* Set SCLK = fast, approx 4.5 MBits/s */ + +#define CS_HIGH() {HAL_GPIO_WritePin(SD_CS_GPIO_Port, SD_CS_Pin, GPIO_PIN_SET);} +#define CS_LOW() {HAL_GPIO_WritePin(SD_CS_GPIO_Port, SD_CS_Pin, GPIO_PIN_RESET);} + +/*-------------------------------------------------------------------------- + + Module Private Functions + +---------------------------------------------------------------------------*/ + +/* MMC/SD command */ +#define CMD0 (0) /* GO_IDLE_STATE */ +#define CMD1 (1) /* SEND_OP_COND (MMC) */ +#define ACMD41 (0x80+41) /* SEND_OP_COND (SDC) */ +#define CMD8 (8) /* SEND_IF_COND */ +#define CMD9 (9) /* SEND_CSD */ +#define CMD10 (10) /* SEND_CID */ +#define CMD12 (12) /* STOP_TRANSMISSION */ +#define ACMD13 (0x80+13) /* SD_STATUS (SDC) */ +#define CMD16 (16) /* SET_BLOCKLEN */ +#define CMD17 (17) /* READ_SINGLE_BLOCK */ +#define CMD18 (18) /* READ_MULTIPLE_BLOCK */ +#define CMD23 (23) /* SET_BLOCK_COUNT (MMC) */ +#define ACMD23 (0x80+23) /* SET_WR_BLK_ERASE_COUNT (SDC) */ +#define CMD24 (24) /* WRITE_BLOCK */ +#define CMD25 (25) /* WRITE_MULTIPLE_BLOCK */ +#define CMD32 (32) /* ERASE_ER_BLK_START */ +#define CMD33 (33) /* ERASE_ER_BLK_END */ +#define CMD38 (38) /* ERASE */ +#define CMD55 (55) /* APP_CMD */ +#define CMD58 (58) /* READ_OCR */ + +/* MMC card type flags (MMC_GET_TYPE) */ +#define CT_MMC 0x01 /* MMC ver 3 */ +#define CT_SD1 0x02 /* SD ver 1 */ +#define CT_SD2 0x04 /* SD ver 2 */ +#define CT_SDC (CT_SD1|CT_SD2) /* SD */ +#define CT_BLOCK 0x08 /* Block addressing */ + +static volatile +DSTATUS Stat = STA_NOINIT; /* Physical drive status */ + + +static +BYTE CardType; /* Card type flags */ + +uint32_t spiTimerTickStart; +uint32_t spiTimerTickDelay; + +void SPI_Timer_On(uint32_t waitTicks) { + spiTimerTickStart = HAL_GetTick(); + spiTimerTickDelay = waitTicks; +} + +uint8_t SPI_Timer_Status() { + return ((HAL_GetTick() - spiTimerTickStart) < spiTimerTickDelay); +} + +/*-----------------------------------------------------------------------*/ +/* SPI controls (Platform dependent) */ +/*-----------------------------------------------------------------------*/ + +/* Exchange a byte */ +static +BYTE xchg_spi ( + BYTE dat /* Data to send */ +) +{ + BYTE rxDat; + HAL_SPI_TransmitReceive(&SD_SPI_HANDLE, &dat, &rxDat, 1, 50); + return rxDat; +} + + +/* Receive multiple byte */ +static +void rcvr_spi_multi ( + BYTE *buff, /* Pointer to data buffer */ + UINT btr /* Number of bytes to receive (even number) */ +) +{ + for(UINT i=0; i */ + cmd &= 0x7F; + res = send_cmd(CMD55, 0); + if (res > 1) return res; + } + + /* Select the card and wait for ready except to stop multiple block read */ + if (cmd != CMD12) { + despiselect(); + if (!spiselect()) return 0xFF; + } + + /* Send command packet */ + xchg_spi(0x40 | cmd); /* Start + command index */ + xchg_spi((BYTE)(arg >> 24)); /* Argument[31..24] */ + xchg_spi((BYTE)(arg >> 16)); /* Argument[23..16] */ + xchg_spi((BYTE)(arg >> 8)); /* Argument[15..8] */ + xchg_spi((BYTE)arg); /* Argument[7..0] */ + n = 0x01; /* Dummy CRC + Stop */ + if (cmd == CMD0) n = 0x95; /* Valid CRC for CMD0(0) */ + if (cmd == CMD8) n = 0x87; /* Valid CRC for CMD8(0x1AA) */ + xchg_spi(n); + + /* Receive command resp */ + if (cmd == CMD12) xchg_spi(0xFF); /* Diacard following one byte when CMD12 */ + n = 10; /* Wait for response (10 bytes max) */ + do { + res = xchg_spi(0xFF); + } while ((res & 0x80) && --n); + + return res; /* Return received response */ +} + + +/*-------------------------------------------------------------------------- + + Public FatFs Functions (wrapped in user_diskio.c) + +---------------------------------------------------------------------------*/ + +//The following functions are defined as inline because they aren't the functions that +//are passed to FatFs - they are wrapped by autogenerated (non-inline) cubemx template +//code. +//If you do not wish to use cubemx, remove the "inline" from these functions here +//and in the associated .h + + +/*-----------------------------------------------------------------------*/ +/* Initialize disk drive */ +/*-----------------------------------------------------------------------*/ + +inline DSTATUS USER_SPI_initialize ( + BYTE drv /* Physical drive number (0) */ +) +{ + BYTE n, cmd, ty, ocr[4]; + + if (drv != 0) return STA_NOINIT; /* Supports only drive 0 */ + //assume SPI already init init_spi(); /* Initialize SPI */ + + if (Stat & STA_NODISK) return Stat; /* Is card existing in the soket? */ + + FCLK_SLOW(); + for (n = 10; n; n--) xchg_spi(0xFF); /* Send 80 dummy clocks */ + + ty = 0; + if (send_cmd(CMD0, 0) == 1) { /* Put the card SPI/Idle state */ + SPI_Timer_On(1000); /* Initialization timeout = 1 sec */ + if (send_cmd(CMD8, 0x1AA) == 1) { /* SDv2? */ + for (n = 0; n < 4; n++) ocr[n] = xchg_spi(0xFF); /* Get 32 bit return value of R7 resp */ + if (ocr[2] == 0x01 && ocr[3] == 0xAA) { /* Is the card supports vcc of 2.7-3.6V? */ + while (SPI_Timer_Status() && send_cmd(ACMD41, 1UL << 30)) ; /* Wait for end of initialization with ACMD41(HCS) */ + if (SPI_Timer_Status() && send_cmd(CMD58, 0) == 0) { /* Check CCS bit in the OCR */ + for (n = 0; n < 4; n++) ocr[n] = xchg_spi(0xFF); + ty = (ocr[0] & 0x40) ? CT_SD2 | CT_BLOCK : CT_SD2; /* Card id SDv2 */ + } + } + } else { /* Not SDv2 card */ + if (send_cmd(ACMD41, 0) <= 1) { /* SDv1 or MMC? */ + ty = CT_SD1; cmd = ACMD41; /* SDv1 (ACMD41(0)) */ + } else { + ty = CT_MMC; cmd = CMD1; /* MMCv3 (CMD1(0)) */ + } + while (SPI_Timer_Status() && send_cmd(cmd, 0)) ; /* Wait for end of initialization */ + if (!SPI_Timer_Status() || send_cmd(CMD16, 512) != 0) /* Set block length: 512 */ + ty = 0; + } + } + CardType = ty; /* Card type */ + despiselect(); + + if (ty) { /* OK */ + FCLK_FAST(); /* Set fast clock */ + Stat &= ~STA_NOINIT; /* Clear STA_NOINIT flag */ + } else { /* Failed */ + Stat = STA_NOINIT; + } + + return Stat; +} + + + +/*-----------------------------------------------------------------------*/ +/* Get disk status */ +/*-----------------------------------------------------------------------*/ + +inline DSTATUS USER_SPI_status ( + BYTE drv /* Physical drive number (0) */ +) +{ + if (drv) return STA_NOINIT; /* Supports only drive 0 */ + + return Stat; /* Return disk status */ +} + + + +/*-----------------------------------------------------------------------*/ +/* Read sector(s) */ +/*-----------------------------------------------------------------------*/ + +inline DRESULT USER_SPI_read ( + BYTE drv, /* Physical drive number (0) */ + BYTE *buff, /* Pointer to the data buffer to store read data */ + DWORD sector, /* Start sector number (LBA) */ + UINT count /* Number of sectors to read (1..128) */ +) +{ + if (drv || !count) return RES_PARERR; /* Check parameter */ + if (Stat & STA_NOINIT) return RES_NOTRDY; /* Check if drive is ready */ + + if (!(CardType & CT_BLOCK)) sector *= 512; /* LBA ot BA conversion (byte addressing cards) */ + + if (count == 1) { /* Single sector read */ + if ((send_cmd(CMD17, sector) == 0) /* READ_SINGLE_BLOCK */ + && rcvr_datablock(buff, 512)) { + count = 0; + } + } + else { /* Multiple sector read */ + if (send_cmd(CMD18, sector) == 0) { /* READ_MULTIPLE_BLOCK */ + do { + if (!rcvr_datablock(buff, 512)) break; + buff += 512; + } while (--count); + send_cmd(CMD12, 0); /* STOP_TRANSMISSION */ + } + } + despiselect(); + + return count ? RES_ERROR : RES_OK; /* Return result */ +} + + + +/*-----------------------------------------------------------------------*/ +/* Write sector(s) */ +/*-----------------------------------------------------------------------*/ + +#if _USE_WRITE +inline DRESULT USER_SPI_write ( + BYTE drv, /* Physical drive number (0) */ + const BYTE *buff, /* Ponter to the data to write */ + DWORD sector, /* Start sector number (LBA) */ + UINT count /* Number of sectors to write (1..128) */ +) +{ + if (drv || !count) return RES_PARERR; /* Check parameter */ + if (Stat & STA_NOINIT) return RES_NOTRDY; /* Check drive status */ + if (Stat & STA_PROTECT) return RES_WRPRT; /* Check write protect */ + + if (!(CardType & CT_BLOCK)) sector *= 512; /* LBA ==> BA conversion (byte addressing cards) */ + + if (count == 1) { /* Single sector write */ + if ((send_cmd(CMD24, sector) == 0) /* WRITE_BLOCK */ + && xmit_datablock(buff, 0xFE)) { + count = 0; + } + } + else { /* Multiple sector write */ + if (CardType & CT_SDC) send_cmd(ACMD23, count); /* Predefine number of sectors */ + if (send_cmd(CMD25, sector) == 0) { /* WRITE_MULTIPLE_BLOCK */ + do { + if (!xmit_datablock(buff, 0xFC)) break; + buff += 512; + } while (--count); + if (!xmit_datablock(0, 0xFD)) count = 1; /* STOP_TRAN token */ + } + } + despiselect(); + + return count ? RES_ERROR : RES_OK; /* Return result */ +} +#endif + + +/*-----------------------------------------------------------------------*/ +/* Miscellaneous drive controls other than data read/write */ +/*-----------------------------------------------------------------------*/ + +#if _USE_IOCTL +inline DRESULT USER_SPI_ioctl ( + BYTE drv, /* Physical drive number (0) */ + BYTE cmd, /* Control command code */ + void *buff /* Pointer to the conrtol data */ +) +{ + DRESULT res; + BYTE n, csd[16]; + DWORD *dp, st, ed, csize; + + + if (drv) return RES_PARERR; /* Check parameter */ + if (Stat & STA_NOINIT) return RES_NOTRDY; /* Check if drive is ready */ + + res = RES_ERROR; + + switch (cmd) { + case CTRL_SYNC : /* Wait for end of internal write process of the drive */ + if (spiselect()) res = RES_OK; + break; + + case GET_SECTOR_COUNT : /* Get drive capacity in unit of sector (DWORD) */ + if ((send_cmd(CMD9, 0) == 0) && rcvr_datablock(csd, 16)) { + if ((csd[0] >> 6) == 1) { /* SDC ver 2.00 */ + csize = csd[9] + ((WORD)csd[8] << 8) + ((DWORD)(csd[7] & 63) << 16) + 1; + *(DWORD*)buff = csize << 10; + } else { /* SDC ver 1.XX or MMC ver 3 */ + n = (csd[5] & 15) + ((csd[10] & 128) >> 7) + ((csd[9] & 3) << 1) + 2; + csize = (csd[8] >> 6) + ((WORD)csd[7] << 2) + ((WORD)(csd[6] & 3) << 10) + 1; + *(DWORD*)buff = csize << (n - 9); + } + res = RES_OK; + } + break; + + case GET_BLOCK_SIZE : /* Get erase block size in unit of sector (DWORD) */ + if (CardType & CT_SD2) { /* SDC ver 2.00 */ + if (send_cmd(ACMD13, 0) == 0) { /* Read SD status */ + xchg_spi(0xFF); + if (rcvr_datablock(csd, 16)) { /* Read partial block */ + for (n = 64 - 16; n; n--) xchg_spi(0xFF); /* Purge trailing data */ + *(DWORD*)buff = 16UL << (csd[10] >> 4); + res = RES_OK; + } + } + } else { /* SDC ver 1.XX or MMC */ + if ((send_cmd(CMD9, 0) == 0) && rcvr_datablock(csd, 16)) { /* Read CSD */ + if (CardType & CT_SD1) { /* SDC ver 1.XX */ + *(DWORD*)buff = (((csd[10] & 63) << 1) + ((WORD)(csd[11] & 128) >> 7) + 1) << ((csd[13] >> 6) - 1); + } else { /* MMC */ + *(DWORD*)buff = ((WORD)((csd[10] & 124) >> 2) + 1) * (((csd[11] & 3) << 3) + ((csd[11] & 224) >> 5) + 1); + } + res = RES_OK; + } + } + break; + + case CTRL_TRIM : /* Erase a block of sectors (used when _USE_ERASE == 1) */ + if (!(CardType & CT_SDC)) break; /* Check if the card is SDC */ + if (USER_SPI_ioctl(drv, MMC_GET_CSD, csd)) break; /* Get CSD */ + if (!(csd[0] >> 6) && !(csd[10] & 0x40)) break; /* Check if sector erase can be applied to the card */ + dp = buff; st = dp[0]; ed = dp[1]; /* Load sector block */ + if (!(CardType & CT_BLOCK)) { + st *= 512; ed *= 512; + } + if (send_cmd(CMD32, st) == 0 && send_cmd(CMD33, ed) == 0 && send_cmd(CMD38, 0) == 0 && wait_ready(30000)) { /* Erase sector block */ + res = RES_OK; /* FatFs does not check result of this command */ + } + break; + + default: + res = RES_PARERR; + } + + despiselect(); + + return res; +} +#endif diff --git a/FATFS/Target/user_diskio_spi.h b/FATFS/Target/user_diskio_spi.h new file mode 100644 index 0000000..0a95e56 --- /dev/null +++ b/FATFS/Target/user_diskio_spi.h @@ -0,0 +1,38 @@ +/** + ****************************************************************************** + * @file user_diskio_spi.h + * @brief This file contains the common defines and functions prototypes for + * the user_diskio_spi driver implementation + ****************************************************************************** + * Portions copyright (C) 2014, ChaN, all rights reserved. + * Portions copyright (C) 2017, kiwih, all rights reserved. + * + * This software is a free software and there is NO WARRANTY. + * No restriction on use. You can use, modify and redistribute it for + * personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY. + * Redistributions of source code must retain the above copyright notice. + * + ****************************************************************************** + */ + +#ifndef _USER_DISKIO_SPI_H +#define _USER_DISKIO_SPI_H + +#include "integer.h" //from FatFs middleware library +#include "diskio.h" //from FatFs middleware library +#include "ff_gen_drv.h" //from FatFs middleware library + +//we define these as inline because we don't want them to be actual function calls (they get "called" from the cubemx autogenerated user_diskio file) +//we define them as extern because they are defined in a separate .c file to user_diskio.c (which #includes this .h file) + +extern DSTATUS USER_SPI_initialize (BYTE pdrv); +extern DSTATUS USER_SPI_status (BYTE pdrv); +extern DRESULT USER_SPI_read (BYTE pdrv, BYTE *buff, DWORD sector, UINT count); +#if _USE_WRITE == 1 + extern DRESULT USER_SPI_write (BYTE pdrv, const BYTE *buff, DWORD sector, UINT count); +#endif /* _USE_WRITE == 1 */ +#if _USE_IOCTL == 1 + extern DRESULT USER_SPI_ioctl (BYTE pdrv, BYTE cmd, void *buff); +#endif /* _USE_IOCTL == 1 */ + +#endif