/* Includes ------------------------------------------------------------------*/
#include "usbd_msc_storage.h"
/* USER CODE BEGIN INCLUDE */
#include "spiflash/bsp_spiflash.h"
/* USER CODE END INCLUDE */
/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
* @{
*/
/** @defgroup USBD_STORAGE
* [url=home.php?mod=space&uid=247401]@brief[/url] usbd core module
* @{
*/
/** @defgroup USBD_STORAGE_Private_TypesDefinitions
* @{
*/
/* USER CODE BEGIN PRIVATE_TYPES */
/* USER CODE END PRIVATE_TYPES */
/**
* @}
*/
/** @defgroup USBD_STORAGE_Private_Defines
* @{
*/
#define SPI_FLASH_SECTOR_SIZE 4096 // 串行Flash扇区大小
#define SPI_FLASH_START_SECTOR 1792 // 串行Flash文件系统FatFS偏移量
#define SPI_FLASH_SECTOR_COUNT 2304 // 串行Flash文件系统FatFS占用扇区个数
#define STORAGE_LUN_NBR 1
#define STORAGE_BLK_SIZ SPI_FLASH_SECTOR_SIZE
/* USER CODE BEGIN PRIVATE_DEFINES */
/* USER CODE END PRIVATE_DEFINES */
/**
* @}
*/
/** @defgroup USBD_STORAGE_Private_Macros
* @{
*/
/* USER CODE BEGIN PRIVATE_MACRO */
/* USER CODE END PRIVATE_MACRO */
/**
* @}
*/
/** @defgroup USBD_STORAGE_IF_Private_Variables
* @{
*/
/* USB handler declaration */
/* Handle for USB Full Speed IP */
USBD_HandleTypeDef *hUsbDevice_0;
/* USER CODE BEGIN INQUIRY_DATA_FS */
/* USB Mass storage Standard Inquiry Data */
const int8_t STORAGE_Inquirydata_FS[] = {//36
/* LUN 0 */
0x00,
0x80,
0x02,
0x02,
(STANDARD_INQUIRY_DATA_LEN - 5),
0x00,
0x00,
0x00,
'S', 'T', 'M', ' ', ' ', ' ', ' ', ' ', /* Manufacturer : 8 bytes */
'P', 'r', 'o', 'd', 'u', 'c', 't', ' ', /* Product : 16 Bytes */
' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ',
'0', '.', '0' ,'1', /* Version : 4 Bytes */
};
/* USER CODE END INQUIRY_DATA_FS */
/* USER CODE BEGIN PRIVATE_VARIABLES */
/* USER CODE END PRIVATE_VARIABLES */
/**
* @}
*/
/** @defgroup USBD_STORAGE_IF_Exported_Variables
* @{
*/
extern USBD_HandleTypeDef hUsbDeviceFS;
/* USER CODE BEGIN EXPORTED_VARIABLES */
/* USER CODE END EXPORTED_VARIABLES */
/**
* @}
*/
/** @defgroup USBD_STORAGE_Private_FunctionPrototypes
* @{
*/
static int8_t STORAGE_Init_FS (uint8_t lun);
static int8_t STORAGE_GetCapacity_FS (uint8_t lun, uint32_t *block_num, uint16_t *block_size);
static int8_t STORAGE_IsReady_FS (uint8_t lun);
static int8_t STORAGE_IsWriteProtected_FS (uint8_t lun);
static int8_t STORAGE_Read_FS (uint8_t lun, uint8_t *buf, uint32_t blk_addr,uint16_t blk_len);
static int8_t STORAGE_Write_FS (uint8_t lun, uint8_t *buf, uint32_t blk_addr,uint16_t blk_len);
static int8_t STORAGE_GetMaxLun_FS (void);
/* USER CODE BEGIN PRIVATE_FUNCTIONS_DECLARATION */
/* USER CODE END PRIVATE_FUNCTIONS_DECLARATION */
/**
* @}
*/
USBD_StorageTypeDef USBD_Storage_Interface_fops_FS =
{
STORAGE_Init_FS,
STORAGE_GetCapacity_FS,
STORAGE_IsReady_FS,
STORAGE_IsWriteProtected_FS,
STORAGE_Read_FS,
STORAGE_Write_FS,
STORAGE_GetMaxLun_FS,
(int8_t *)STORAGE_Inquirydata_FS,
};
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : STORAGE_Init_FS
* Description :
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
int8_t STORAGE_Init_FS (uint8_t lun)
{
/* USER CODE BEGIN 2 */
int8_t res=-1;
MX_SPIFlash_Init();
if(SPI_FLASH_ReadID()==SPI_FLASH_ID)
{
res=USBD_OK;
}
return res;
/* USER CODE END 2 */
}
/*******************************************************************************
* Function Name : STORAGE_GetCapacity_FS
* Description :
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
int8_t STORAGE_GetCapacity_FS (uint8_t lun, uint32_t *block_num, uint16_t *block_size)
{
/* USER CODE BEGIN 3 */
*block_num = SPI_FLASH_SECTOR_COUNT;
*block_size = STORAGE_BLK_SIZ;
return (USBD_OK);
/* USER CODE END 3 */
}
/*******************************************************************************
* Function Name : STORAGE_IsReady_FS
* Description :
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
int8_t STORAGE_IsReady_FS (uint8_t lun)
{
/* USER CODE BEGIN 4 */
if(SPI_FLASH_ReadID()==SPI_FLASH_ID)
return (USBD_OK);
else
return -1;
/* USER CODE END 4 */
}
/*******************************************************************************
* Function Name : STORAGE_IsWriteProtected_FS
* Description :
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
int8_t STORAGE_IsWriteProtected_FS (uint8_t lun)
{
/* USER CODE BEGIN 5 */
return (USBD_OK);
/* USER CODE END 5 */
}
/*******************************************************************************
* Function Name : STORAGE_Read_FS
* Description :
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
int8_t STORAGE_Read_FS (uint8_t lun,
uint8_t *buf,
uint32_t blk_addr,
uint16_t blk_len)
{
/* USER CODE BEGIN 6 */
blk_addr+=SPI_FLASH_START_SECTOR;
SPI_FLASH_BufferRead(buf, blk_addr*SPI_FLASH_SECTOR_SIZE, blk_len*SPI_FLASH_SECTOR_SIZE);
return (USBD_OK);
/* USER CODE END 6 */
}
/*******************************************************************************
* Function Name : STORAGE_Write_FS
* Description :
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
int8_t STORAGE_Write_FS (uint8_t lun,
uint8_t *buf,
uint32_t blk_addr,
uint16_t blk_len)
{
/* USER CODE BEGIN 7 */
uint32_t write_addr;
/* 扇区偏移7MB,外部Flash文件系统空间放在SPI Flash后面9MB空间 */
blk_addr+=SPI_FLASH_START_SECTOR;
write_addr = blk_addr*SPI_FLASH_SECTOR_SIZE;
SPI_FLASH_SectorErase(write_addr);
SPI_FLASH_BufferWrite(buf,write_addr,blk_len*SPI_FLASH_SECTOR_SIZE);
return USBD_OK;
/* USER CODE END 7 */
}
/*******************************************************************************
* Function Name : STORAGE_GetMaxLun_FS
* Description :
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
int8_t STORAGE_GetMaxLun_FS (void)
{
/* USER CODE BEGIN 8 */
return (STORAGE_LUN_NBR - 1);
/* USER CODE END 8 */
}
/* USER CODE BEGIN PRIVATE_FUNCTIONS_IMPLEMENTATION */
/* USER CODE END PRIVATE_FUNCTIONS_IMPLEMENTATION */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/