zhoujie
87bdfa09d9
- 新增usb连接状态检测函数，根据usb连接状态自动切换数据采集模式 - 新增文件系统动态挂载/卸载功能，usb连接时卸载文件系统，断开时重新挂载 - 修改系统启动逻辑，根据初始usb连接状态决定是否开始数据采集 - 新增usb模式系统状态，完善系统状态机 🐛 fix(sdio): 修复sdio配置问题并启用中断 - 修改sdio时钟分频为2，优化sd nand通信时序 - 启用sdio数据线内部上拉电阻，提高信号稳定性 - 提高sdio dma传输优先级至最高，确保数据传输实时性 - 启用sdio全局中断并设置优先级为9 🔧 chore(config): 优化系统配置参数 - 修改系统滴答定时器中断优先级为0（最高优先级） - 增加堆栈大小至0x1000，增加堆大小至0x800 - 修改usb msc媒体数据包大小至32768，提高usb传输效率 - 修改fatfs配置，设置最大最小扇区大小为512字节 ♻️ refactor(usb): 重构usb存储接口实现 - 修改usb存储初始化逻辑，避免重复初始化sd卡 - 优化usb存储容量报告机制，强制报告512字节扇区 - 增加sd nand读写超时等待机制，确保数据传输完成 - 修改usb中断优先级为11，避免与sdio中断冲突 📝 docs(headers): 更新头文件声明 - 在stm32f4xx_it.h中添加sdio中断处理函数声明 - 在system_monitor.h中添加usb模式系统状态定义 - 更新data_storage.h中的数据存储路径配置
364 lines
8.9 KiB
C
364 lines
8.9 KiB
C
/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file : usbd_storage_if.c
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* @version : v1.0_Cube
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* @brief : Memory management layer.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2026 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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/* Includes ------------------------------------------------------------------*/
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#include "usbd_storage_if.h"
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/* USER CODE BEGIN INCLUDE */
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#include "fatfs.h"
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#include "ff.h"
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/* USER CODE END INCLUDE */
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* USER CODE BEGIN PV */
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/* Private variables ---------------------------------------------------------*/
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extern SD_HandleTypeDef hsd;
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extern FATFS SDFatFS;
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extern char SDPath[4];
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static uint8_t sd_initialized = 0;
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/* USER CODE END PV */
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/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
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* @brief Usb device.
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* @{
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*/
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/** @defgroup USBD_STORAGE
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* @brief Usb mass storage device module
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* @{
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*/
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/** @defgroup USBD_STORAGE_Private_TypesDefinitions
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* @brief Private types.
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* @{
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*/
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/* USER CODE BEGIN PRIVATE_TYPES */
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/* USER CODE END PRIVATE_TYPES */
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/**
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* @}
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*/
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/** @defgroup USBD_STORAGE_Private_Defines
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* @brief Private defines.
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* @{
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*/
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#define STORAGE_LUN_NBR 1
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#define STORAGE_BLK_NBR 0x10000
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#define STORAGE_BLK_SIZ 0x200
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/* USER CODE BEGIN PRIVATE_DEFINES */
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/* USER CODE END PRIVATE_DEFINES */
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/**
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* @}
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*/
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/** @defgroup USBD_STORAGE_Private_Macros
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* @brief Private macros.
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* @{
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*/
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/* USER CODE BEGIN PRIVATE_MACRO */
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/* USER CODE END PRIVATE_MACRO */
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/**
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* @}
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*/
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/** @defgroup USBD_STORAGE_Private_Variables
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* @brief Private variables.
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* @{
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*/
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/* USER CODE BEGIN INQUIRY_DATA_FS */
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/** USB Mass storage Standard Inquiry Data. */
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const int8_t STORAGE_Inquirydata_FS[] = {/* 36 */
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/* LUN 0 */
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0x00,
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0x80,
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0x02,
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0x02,
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(STANDARD_INQUIRY_DATA_LEN - 5),
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0x00,
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0x00,
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0x00,
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'S', 'T', 'M', ' ', ' ', ' ', ' ', ' ', /* Manufacturer : 8 bytes */
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'P', 'r', 'o', 'd', 'u', 'c', 't', ' ', /* Product : 16 Bytes */
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' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ',
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'0', '.', '0' ,'1' /* Version : 4 Bytes */
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};
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/* USER CODE END INQUIRY_DATA_FS */
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/* USER CODE BEGIN PRIVATE_VARIABLES */
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/* USER CODE END PRIVATE_VARIABLES */
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/**
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* @}
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*/
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/** @defgroup USBD_STORAGE_Exported_Variables
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* @brief Public variables.
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* @{
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*/
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extern USBD_HandleTypeDef hUsbDeviceFS;
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/* USER CODE BEGIN EXPORTED_VARIABLES */
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/* USER CODE END EXPORTED_VARIABLES */
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/**
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* @}
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*/
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/** @defgroup USBD_STORAGE_Private_FunctionPrototypes
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* @brief Private functions declaration.
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* @{
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*/
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static int8_t STORAGE_Init_FS(uint8_t lun);
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static int8_t STORAGE_GetCapacity_FS(uint8_t lun, uint32_t *block_num, uint16_t *block_size);
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static int8_t STORAGE_IsReady_FS(uint8_t lun);
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static int8_t STORAGE_IsWriteProtected_FS(uint8_t lun);
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static int8_t STORAGE_Read_FS(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len);
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static int8_t STORAGE_Write_FS(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len);
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static int8_t STORAGE_GetMaxLun_FS(void);
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/* USER CODE BEGIN PRIVATE_FUNCTIONS_DECLARATION */
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/* USER CODE END PRIVATE_FUNCTIONS_DECLARATION */
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/**
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* @}
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*/
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USBD_StorageTypeDef USBD_Storage_Interface_fops_FS =
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{
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STORAGE_Init_FS,
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STORAGE_GetCapacity_FS,
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STORAGE_IsReady_FS,
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STORAGE_IsWriteProtected_FS,
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STORAGE_Read_FS,
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STORAGE_Write_FS,
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STORAGE_GetMaxLun_FS,
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(int8_t *)STORAGE_Inquirydata_FS
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};
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief Initializes the storage unit (medium) over USB FS IP
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* @param lun: Logical unit number.
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* @retval USBD_OK if all operations are OK else USBD_FAIL
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*/
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int8_t STORAGE_Init_FS(uint8_t lun)
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{
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/* USER CODE BEGIN 2 */
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UNUSED(lun);
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// 1. 检查 SD 句柄状态
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// 如果之前在 main.c 里已经 HAL_SD_Init 过了，这里只要确认状态即可
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HAL_SD_StateTypeDef state = HAL_SD_GetState(&hsd);
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if(state == HAL_SD_STATE_RESET)
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{
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// 只有在从未初始化的情况下才初始化
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if (HAL_SD_Init(&hsd) != HAL_OK) {
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return (USBD_FAIL);
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}
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}
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// 2. 绝对不要在这里 f_mount 或 f_mkfs !!!
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// USB 只是搬运工，文件系统由电脑端管理。
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sd_initialized = 1;
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return (USBD_OK);
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/* USER CODE END 2 */
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}
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/**
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* @brief Returns the medium capacity.
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* @param lun: Logical unit number.
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* @param block_num: Number of total block number.
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* @param block_size: Block size.
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* @retval USBD_OK if all operations are OK else USBD_FAIL
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*/
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int8_t STORAGE_GetCapacity_FS(uint8_t lun, uint32_t *block_num, uint16_t *block_size)
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{
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/* USER CODE BEGIN 3 */
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UNUSED(lun);
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HAL_SD_CardInfoTypeDef cardinfo;
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if (HAL_SD_GetCardInfo(&hsd, &cardinfo) == HAL_OK)
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{
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// 修正 2: 欺骗电脑，强制报告 512 字节扇区
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*block_size = 512;
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if (cardinfo.LogBlockSize == 512) {
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*block_num = cardinfo.LogBlockNbr - 1;
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}
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else {
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// 如果 SD NAND 是 2048/4096 字节页，需要转换块数量
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// 例如：实际 4096，那 USB 看到的块数就是 实际块数 * 8
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uint32_t ratio = cardinfo.LogBlockSize / 512;
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*block_num = (cardinfo.LogBlockNbr * ratio) - 1;
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}
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return (USBD_OK);
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}
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return (USBD_FAIL);
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/* USER CODE END 3 */
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}
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/**
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* @brief Checks whether the medium is ready.
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* @param lun: Logical unit number.
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* @retval USBD_OK if all operations are OK else USBD_FAIL
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*/
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int8_t STORAGE_IsReady_FS(uint8_t lun)
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{
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/* USER CODE BEGIN 4 */
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UNUSED(lun);
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// 简单检查硬件状态
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if (hsd.State == HAL_SD_STATE_RESET) {
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return (USBD_FAIL);
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}
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// 对于 SD NAND，即使内部 BUSY，为了不让 USB 掉线，通常也返回 OK
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// 实际的等待放到 Read/Write 函数里去做
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return (USBD_OK);
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/* USER CODE END 4 */
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}
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/**
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* @brief Checks whether the medium is write protected.
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* @param lun: Logical unit number.
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* @retval USBD_OK if all operations are OK else USBD_FAIL
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*/
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int8_t STORAGE_IsWriteProtected_FS(uint8_t lun)
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{
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/* USER CODE BEGIN 5 */
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UNUSED(lun);
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return (USBD_OK);
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/* USER CODE END 5 */
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}
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/**
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* @brief Reads data from the medium.
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* @param lun: Logical unit number.
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* @param buf: data buffer.
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* @param blk_addr: Logical block address.
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* @param blk_len: Blocks number.
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* @retval USBD_OK if all operations are OK else USBD_FAIL
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*/
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int8_t STORAGE_Read_FS(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len)
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{
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/* USER CODE BEGIN 6 */
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UNUSED(lun);
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// 使用较长的超时时间 (SD NAND 读写较慢)
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uint32_t timeout = 2000;
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if (HAL_SD_ReadBlocks(&hsd, buf, blk_addr, blk_len, timeout) != HAL_OK) {
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return (USBD_FAIL);
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}
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// 等待传输完成 (重要: 确保 DMA/中断搬运完毕)
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uint32_t tickstart = HAL_GetTick();
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while(HAL_SD_GetCardState(&hsd) != HAL_SD_CARD_TRANSFER)
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{
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if((HAL_GetTick() - tickstart) > timeout) return USBD_FAIL;
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}
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return (USBD_OK);
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/* USER CODE END 6 */
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}
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/**
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* @brief Writes data into the medium.
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* @param lun: Logical unit number.
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* @param buf: data buffer.
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* @param blk_addr: Logical block address.
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* @param blk_len: Blocks number.
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* @retval USBD_OK if all operations are OK else USBD_FAIL
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*/
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int8_t STORAGE_Write_FS(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len)
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{
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/* USER CODE BEGIN 7 */
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UNUSED(lun);
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// 修正 3: 增加超时时间，并等待 Busy 结束
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uint32_t timeout = 5000; // 给 5秒，SD NAND 写入由于要擦除/编程，很慢
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if (HAL_SD_WriteBlocks(&hsd, buf, blk_addr, blk_len, timeout) != HAL_OK) {
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return (USBD_FAIL);
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}
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// 【最关键的一步】等待 SD NAND 内部编程结束
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// 如果没有这一步，文件就会丢失！
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uint32_t tickstart = HAL_GetTick();
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while(HAL_SD_GetCardState(&hsd) != HAL_SD_CARD_TRANSFER)
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{
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if((HAL_GetTick() - tickstart) > timeout) return USBD_FAIL;
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}
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return (USBD_OK);
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/* USER CODE END 7 */
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}
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/**
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* @brief Returns the Max Supported LUNs.
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* @param None
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* @retval Lun(s) number.
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*/
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int8_t STORAGE_GetMaxLun_FS(void)
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{
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/* USER CODE BEGIN 8 */
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return (STORAGE_LUN_NBR - 1);
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/* USER CODE END 8 */
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}
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/* USER CODE BEGIN PRIVATE_FUNCTIONS_IMPLEMENTATION */
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/* USER CODE END PRIVATE_FUNCTIONS_IMPLEMENTATION */
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/**
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* @}
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*/
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/**
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* @}
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*/
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