Browse code
Add source code of the firmware for the IO Board
Pawel Jablonski authored on 05/06/2023 17:01:27
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+/** |
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+ ****************************************************************************** |
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+ * @file usbd_msc_bot.c |
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+ * @author MCD Application Team |
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+ * @brief This file provides all the BOT protocol core functions. |
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+ ****************************************************************************** |
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+ * @attention |
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+ * |
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+ * Copyright (c) 2015 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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+ |
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+/* BSPDependencies |
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+- "stm32xxxxx_{eval}{discovery}{nucleo_144}.c"
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+- "stm32xxxxx_{eval}{discovery}_io.c"
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+- "stm32xxxxx_{eval}{discovery}{adafruit}_sd.c"
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+EndBSPDependencies */ |
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+ |
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+/* Includes ------------------------------------------------------------------*/ |
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+#include "usbd_msc_bot.h" |
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+#include "usbd_msc.h" |
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+#include "usbd_msc_scsi.h" |
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+#include "usbd_ioreq.h" |
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+ |
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+/** @addtogroup STM32_USB_DEVICE_LIBRARY |
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+ * @{
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+ */ |
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+ |
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+ |
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+/** @defgroup MSC_BOT |
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+ * @brief BOT protocol module |
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+ * @{
|
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+ */ |
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+ |
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+/** @defgroup MSC_BOT_Private_TypesDefinitions |
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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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+ |
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+/** @defgroup MSC_BOT_Private_Defines |
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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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+ |
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+ |
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+/** @defgroup MSC_BOT_Private_Macros |
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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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+ |
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+/** @defgroup MSC_BOT_Private_Variables |
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+ * @{
|
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+ */ |
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+extern uint8_t MSCInEpAdd; |
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+extern uint8_t MSCOutEpAdd; |
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+/** |
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+ * @} |
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+ */ |
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+ |
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+ |
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+/** @defgroup MSC_BOT_Private_FunctionPrototypes |
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+ * @{
|
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+ */ |
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+static void MSC_BOT_SendData(USBD_HandleTypeDef *pdev, uint8_t *pbuf, uint32_t len); |
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+static void MSC_BOT_CBW_Decode(USBD_HandleTypeDef *pdev); |
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+static void MSC_BOT_Abort(USBD_HandleTypeDef *pdev); |
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+/** |
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+ * @} |
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+ */ |
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+ |
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+ |
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+/** @defgroup MSC_BOT_Private_Functions |
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+ * @{
|
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+ */ |
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+ |
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+ |
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+/** |
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+ * @brief MSC_BOT_Init |
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+ * Initialize the BOT Process |
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+ * @param pdev: device instance |
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+ * @retval None |
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+ */ |
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+void MSC_BOT_Init(USBD_HandleTypeDef *pdev) |
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+{
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+ USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; |
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+ |
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+#ifdef USE_USBD_COMPOSITE |
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+ /* Get the Endpoints addresses allocated for this class instance */ |
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+ MSCInEpAdd = USBD_CoreGetEPAdd(pdev, USBD_EP_IN, USBD_EP_TYPE_BULK, (uint8_t)pdev->classId); |
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+ MSCOutEpAdd = USBD_CoreGetEPAdd(pdev, USBD_EP_OUT, USBD_EP_TYPE_BULK, (uint8_t)pdev->classId); |
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+#endif /* USE_USBD_COMPOSITE */ |
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+ |
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+ if (hmsc == NULL) |
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+ {
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+ return; |
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+ } |
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+ |
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+ hmsc->bot_state = USBD_BOT_IDLE; |
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+ hmsc->bot_status = USBD_BOT_STATUS_NORMAL; |
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+ |
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+ hmsc->scsi_sense_tail = 0U; |
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+ hmsc->scsi_sense_head = 0U; |
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+ hmsc->scsi_medium_state = SCSI_MEDIUM_UNLOCKED; |
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+ |
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+ ((USBD_StorageTypeDef *)pdev->pUserData[pdev->classId])->Init(0U); |
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+ |
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+ (void)USBD_LL_FlushEP(pdev, MSCOutEpAdd); |
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+ (void)USBD_LL_FlushEP(pdev, MSCInEpAdd); |
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+ |
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+ /* Prepare EP to Receive First BOT Cmd */ |
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+ (void)USBD_LL_PrepareReceive(pdev, MSCOutEpAdd, (uint8_t *)&hmsc->cbw, |
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+ USBD_BOT_CBW_LENGTH); |
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+} |
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+ |
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+/** |
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+ * @brief MSC_BOT_Reset |
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+ * Reset the BOT Machine |
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+ * @param pdev: device instance |
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+ * @retval None |
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+ */ |
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+void MSC_BOT_Reset(USBD_HandleTypeDef *pdev) |
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+{
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+ USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; |
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+ |
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+#ifdef USE_USBD_COMPOSITE |
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+ /* Get the Endpoints addresses allocated for this class instance */ |
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+ MSCInEpAdd = USBD_CoreGetEPAdd(pdev, USBD_EP_IN, USBD_EP_TYPE_BULK, (uint8_t)pdev->classId); |
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+ MSCOutEpAdd = USBD_CoreGetEPAdd(pdev, USBD_EP_OUT, USBD_EP_TYPE_BULK, (uint8_t)pdev->classId); |
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+#endif /* USE_USBD_COMPOSITE */ |
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+ |
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+ if (hmsc == NULL) |
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+ {
|
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+ return; |
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+ } |
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+ |
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+ hmsc->bot_state = USBD_BOT_IDLE; |
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+ hmsc->bot_status = USBD_BOT_STATUS_RECOVERY; |
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+ |
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+ (void)USBD_LL_ClearStallEP(pdev, MSCInEpAdd); |
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+ (void)USBD_LL_ClearStallEP(pdev, MSCOutEpAdd); |
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+ |
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+ /* Prepare EP to Receive First BOT Cmd */ |
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+ (void)USBD_LL_PrepareReceive(pdev, MSCOutEpAdd, (uint8_t *)&hmsc->cbw, |
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+ USBD_BOT_CBW_LENGTH); |
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+} |
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+ |
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+/** |
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+ * @brief MSC_BOT_DeInit |
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+ * DeInitialize the BOT Machine |
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+ * @param pdev: device instance |
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+ * @retval None |
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+ */ |
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+void MSC_BOT_DeInit(USBD_HandleTypeDef *pdev) |
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+{
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+ USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; |
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+ |
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+ if (hmsc != NULL) |
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+ {
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+ hmsc->bot_state = USBD_BOT_IDLE; |
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+ } |
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+} |
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+ |
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+/** |
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+ * @brief MSC_BOT_DataIn |
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+ * Handle BOT IN data stage |
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+ * @param pdev: device instance |
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+ * @param epnum: endpoint index |
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+ * @retval None |
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+ */ |
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+void MSC_BOT_DataIn(USBD_HandleTypeDef *pdev, uint8_t epnum) |
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+{
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+ UNUSED(epnum); |
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+ |
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+ USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; |
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+ |
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+ if (hmsc == NULL) |
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+ {
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+ return; |
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+ } |
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+ |
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+ switch (hmsc->bot_state) |
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+ {
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+ case USBD_BOT_DATA_IN: |
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+ if (SCSI_ProcessCmd(pdev, hmsc->cbw.bLUN, &hmsc->cbw.CB[0]) < 0) |
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+ {
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+ MSC_BOT_SendCSW(pdev, USBD_CSW_CMD_FAILED); |
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+ } |
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+ break; |
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+ |
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+ case USBD_BOT_SEND_DATA: |
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+ case USBD_BOT_LAST_DATA_IN: |
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+ MSC_BOT_SendCSW(pdev, USBD_CSW_CMD_PASSED); |
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+ break; |
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+ |
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+ default: |
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+ break; |
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+ } |
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+} |
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+/** |
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+ * @brief MSC_BOT_DataOut |
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+ * Process MSC OUT data |
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+ * @param pdev: device instance |
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+ * @param epnum: endpoint index |
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+ * @retval None |
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+ */ |
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+void MSC_BOT_DataOut(USBD_HandleTypeDef *pdev, uint8_t epnum) |
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+{
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+ UNUSED(epnum); |
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+ |
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+ USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; |
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+ |
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+ if (hmsc == NULL) |
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+ {
|
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+ return; |
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+ } |
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+ |
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+ switch (hmsc->bot_state) |
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+ {
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+ case USBD_BOT_IDLE: |
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+ MSC_BOT_CBW_Decode(pdev); |
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+ break; |
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+ |
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+ case USBD_BOT_DATA_OUT: |
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+ if (SCSI_ProcessCmd(pdev, hmsc->cbw.bLUN, &hmsc->cbw.CB[0]) < 0) |
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+ {
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+ MSC_BOT_SendCSW(pdev, USBD_CSW_CMD_FAILED); |
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+ } |
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+ break; |
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+ |
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+ default: |
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+ break; |
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+ } |
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+} |
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+ |
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+/** |
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+ * @brief MSC_BOT_CBW_Decode |
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+ * Decode the CBW command and set the BOT state machine accordingly |
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+ * @param pdev: device instance |
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+ * @retval None |
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+ */ |
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+static void MSC_BOT_CBW_Decode(USBD_HandleTypeDef *pdev) |
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+{
|
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+ USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; |
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+ |
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+#ifdef USE_USBD_COMPOSITE |
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+ /* Get the Endpoints addresses allocated for this class instance */ |
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+ MSCInEpAdd = USBD_CoreGetEPAdd(pdev, USBD_EP_IN, USBD_EP_TYPE_BULK, (uint8_t)pdev->classId); |
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+ MSCOutEpAdd = USBD_CoreGetEPAdd(pdev, USBD_EP_OUT, USBD_EP_TYPE_BULK, (uint8_t)pdev->classId); |
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+#endif /* USE_USBD_COMPOSITE */ |
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+ |
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+ if (hmsc == NULL) |
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+ {
|
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+ return; |
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+ } |
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+ |
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+ hmsc->csw.dTag = hmsc->cbw.dTag; |
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+ hmsc->csw.dDataResidue = hmsc->cbw.dDataLength; |
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+ |
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+ if ((USBD_LL_GetRxDataSize(pdev, MSCOutEpAdd) != USBD_BOT_CBW_LENGTH) || |
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+ (hmsc->cbw.dSignature != USBD_BOT_CBW_SIGNATURE) || |
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+ (hmsc->cbw.bLUN > 1U) || (hmsc->cbw.bCBLength < 1U) || |
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+ (hmsc->cbw.bCBLength > 16U)) |
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+ {
|
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+ SCSI_SenseCode(pdev, hmsc->cbw.bLUN, ILLEGAL_REQUEST, INVALID_CDB); |
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+ |
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+ hmsc->bot_status = USBD_BOT_STATUS_ERROR; |
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+ MSC_BOT_Abort(pdev); |
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+ } |
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+ else |
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+ {
|
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+ if (SCSI_ProcessCmd(pdev, hmsc->cbw.bLUN, &hmsc->cbw.CB[0]) < 0) |
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+ {
|
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+ if (hmsc->bot_state == USBD_BOT_NO_DATA) |
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+ {
|
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+ MSC_BOT_SendCSW(pdev, USBD_CSW_CMD_FAILED); |
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+ } |
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+ else |
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+ {
|
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+ MSC_BOT_Abort(pdev); |
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+ } |
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+ } |
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+ /* Burst xfer handled internally */ |
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+ else if ((hmsc->bot_state != USBD_BOT_DATA_IN) && |
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+ (hmsc->bot_state != USBD_BOT_DATA_OUT) && |
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+ (hmsc->bot_state != USBD_BOT_LAST_DATA_IN)) |
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+ {
|
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+ if (hmsc->bot_data_length > 0U) |
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+ {
|
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+ MSC_BOT_SendData(pdev, hmsc->bot_data, hmsc->bot_data_length); |
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+ } |
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+ else if (hmsc->bot_data_length == 0U) |
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+ {
|
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+ MSC_BOT_SendCSW(pdev, USBD_CSW_CMD_PASSED); |
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+ } |
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+ else |
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+ {
|
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+ MSC_BOT_Abort(pdev); |
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+ } |
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+ } |
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+ else |
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+ {
|
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+ return; |
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+ } |
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+ } |
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+} |
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+ |
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+/** |
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+ * @brief MSC_BOT_SendData |
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+ * Send the requested data |
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+ * @param pdev: device instance |
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+ * @param buf: pointer to data buffer |
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+ * @param len: Data Length |
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+ * @retval None |
|
| 329 |
+ */ |
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+static void MSC_BOT_SendData(USBD_HandleTypeDef *pdev, uint8_t *pbuf, uint32_t len) |
|
| 331 |
+{
|
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+ USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; |
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| 333 |
+ |
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+ uint32_t length; |
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| 335 |
+ |
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| 336 |
+#ifdef USE_USBD_COMPOSITE |
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| 337 |
+ /* Get the Endpoints addresses allocated for this class instance */ |
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+ MSCInEpAdd = USBD_CoreGetEPAdd(pdev, USBD_EP_IN, USBD_EP_TYPE_BULK, (uint8_t)pdev->classId); |
|
| 339 |
+ MSCOutEpAdd = USBD_CoreGetEPAdd(pdev, USBD_EP_OUT, USBD_EP_TYPE_BULK, (uint8_t)pdev->classId); |
|
| 340 |
+#endif /* USE_USBD_COMPOSITE */ |
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+ |
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| 342 |
+ if (hmsc == NULL) |
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| 343 |
+ {
|
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| 344 |
+ return; |
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| 345 |
+ } |
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+ |
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+ length = MIN(hmsc->cbw.dDataLength, len); |
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+ |
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+ hmsc->csw.dDataResidue -= len; |
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+ hmsc->csw.bStatus = USBD_CSW_CMD_PASSED; |
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+ hmsc->bot_state = USBD_BOT_SEND_DATA; |
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+ |
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+ (void)USBD_LL_Transmit(pdev, MSCInEpAdd, pbuf, length); |
|
| 354 |
+} |
|
| 355 |
+ |
|
| 356 |
+/** |
|
| 357 |
+ * @brief MSC_BOT_SendCSW |
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| 358 |
+ * Send the Command Status Wrapper |
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| 359 |
+ * @param pdev: device instance |
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| 360 |
+ * @param status : CSW status |
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| 361 |
+ * @retval None |
|
| 362 |
+ */ |
|
| 363 |
+void MSC_BOT_SendCSW(USBD_HandleTypeDef *pdev, uint8_t CSW_Status) |
|
| 364 |
+{
|
|
| 365 |
+ USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; |
|
| 366 |
+ |
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| 367 |
+#ifdef USE_USBD_COMPOSITE |
|
| 368 |
+ /* Get the Endpoints addresses allocated for this class instance */ |
|
| 369 |
+ MSCInEpAdd = USBD_CoreGetEPAdd(pdev, USBD_EP_IN, USBD_EP_TYPE_BULK, (uint8_t)pdev->classId); |
|
| 370 |
+ MSCOutEpAdd = USBD_CoreGetEPAdd(pdev, USBD_EP_OUT, USBD_EP_TYPE_BULK, (uint8_t)pdev->classId); |
|
| 371 |
+#endif /* USE_USBD_COMPOSITE */ |
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| 372 |
+ |
|
| 373 |
+ if (hmsc == NULL) |
|
| 374 |
+ {
|
|
| 375 |
+ return; |
|
| 376 |
+ } |
|
| 377 |
+ |
|
| 378 |
+ hmsc->csw.dSignature = USBD_BOT_CSW_SIGNATURE; |
|
| 379 |
+ hmsc->csw.bStatus = CSW_Status; |
|
| 380 |
+ hmsc->bot_state = USBD_BOT_IDLE; |
|
| 381 |
+ |
|
| 382 |
+ (void)USBD_LL_Transmit(pdev, MSCInEpAdd, (uint8_t *)&hmsc->csw, |
|
| 383 |
+ USBD_BOT_CSW_LENGTH); |
|
| 384 |
+ |
|
| 385 |
+ /* Prepare EP to Receive next Cmd */ |
|
| 386 |
+ (void)USBD_LL_PrepareReceive(pdev, MSCOutEpAdd, (uint8_t *)&hmsc->cbw, |
|
| 387 |
+ USBD_BOT_CBW_LENGTH); |
|
| 388 |
+} |
|
| 389 |
+ |
|
| 390 |
+/** |
|
| 391 |
+ * @brief MSC_BOT_Abort |
|
| 392 |
+ * Abort the current transfer |
|
| 393 |
+ * @param pdev: device instance |
|
| 394 |
+ * @retval status |
|
| 395 |
+ */ |
|
| 396 |
+ |
|
| 397 |
+static void MSC_BOT_Abort(USBD_HandleTypeDef *pdev) |
|
| 398 |
+{
|
|
| 399 |
+ USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; |
|
| 400 |
+ |
|
| 401 |
+#ifdef USE_USBD_COMPOSITE |
|
| 402 |
+ /* Get the Endpoints addresses allocated for this class instance */ |
|
| 403 |
+ MSCInEpAdd = USBD_CoreGetEPAdd(pdev, USBD_EP_IN, USBD_EP_TYPE_BULK, (uint8_t)pdev->classId); |
|
| 404 |
+ MSCOutEpAdd = USBD_CoreGetEPAdd(pdev, USBD_EP_OUT, USBD_EP_TYPE_BULK, (uint8_t)pdev->classId); |
|
| 405 |
+#endif /* USE_USBD_COMPOSITE */ |
|
| 406 |
+ |
|
| 407 |
+ if (hmsc == NULL) |
|
| 408 |
+ {
|
|
| 409 |
+ return; |
|
| 410 |
+ } |
|
| 411 |
+ |
|
| 412 |
+ if ((hmsc->cbw.bmFlags == 0U) && |
|
| 413 |
+ (hmsc->cbw.dDataLength != 0U) && |
|
| 414 |
+ (hmsc->bot_status == USBD_BOT_STATUS_NORMAL)) |
|
| 415 |
+ {
|
|
| 416 |
+ (void)USBD_LL_StallEP(pdev, MSCOutEpAdd); |
|
| 417 |
+ } |
|
| 418 |
+ |
|
| 419 |
+ (void)USBD_LL_StallEP(pdev, MSCInEpAdd); |
|
| 420 |
+ |
|
| 421 |
+ if (hmsc->bot_status == USBD_BOT_STATUS_ERROR) |
|
| 422 |
+ {
|
|
| 423 |
+ (void)USBD_LL_StallEP(pdev, MSCInEpAdd); |
|
| 424 |
+ (void)USBD_LL_StallEP(pdev, MSCOutEpAdd); |
|
| 425 |
+ } |
|
| 426 |
+} |
|
| 427 |
+ |
|
| 428 |
+/** |
|
| 429 |
+ * @brief MSC_BOT_CplClrFeature |
|
| 430 |
+ * Complete the clear feature request |
|
| 431 |
+ * @param pdev: device instance |
|
| 432 |
+ * @param epnum: endpoint index |
|
| 433 |
+ * @retval None |
|
| 434 |
+ */ |
|
| 435 |
+ |
|
| 436 |
+void MSC_BOT_CplClrFeature(USBD_HandleTypeDef *pdev, uint8_t epnum) |
|
| 437 |
+{
|
|
| 438 |
+ USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef *)pdev->pClassDataCmsit[pdev->classId]; |
|
| 439 |
+ |
|
| 440 |
+#ifdef USE_USBD_COMPOSITE |
|
| 441 |
+ /* Get the Endpoints addresses allocated for this class instance */ |
|
| 442 |
+ MSCInEpAdd = USBD_CoreGetEPAdd(pdev, USBD_EP_IN, USBD_EP_TYPE_BULK, (uint8_t)pdev->classId); |
|
| 443 |
+ MSCOutEpAdd = USBD_CoreGetEPAdd(pdev, USBD_EP_OUT, USBD_EP_TYPE_BULK, (uint8_t)pdev->classId); |
|
| 444 |
+#endif /* USE_USBD_COMPOSITE */ |
|
| 445 |
+ |
|
| 446 |
+ if (hmsc == NULL) |
|
| 447 |
+ {
|
|
| 448 |
+ return; |
|
| 449 |
+ } |
|
| 450 |
+ |
|
| 451 |
+ if (hmsc->bot_status == USBD_BOT_STATUS_ERROR) /* Bad CBW Signature */ |
|
| 452 |
+ {
|
|
| 453 |
+ (void)USBD_LL_StallEP(pdev, MSCInEpAdd); |
|
| 454 |
+ (void)USBD_LL_StallEP(pdev, MSCOutEpAdd); |
|
| 455 |
+ } |
|
| 456 |
+ else if (((epnum & 0x80U) == 0x80U) && (hmsc->bot_status != USBD_BOT_STATUS_RECOVERY)) |
|
| 457 |
+ {
|
|
| 458 |
+ MSC_BOT_SendCSW(pdev, USBD_CSW_CMD_FAILED); |
|
| 459 |
+ } |
|
| 460 |
+ else |
|
| 461 |
+ {
|
|
| 462 |
+ return; |
|
| 463 |
+ } |
|
| 464 |
+} |
|
| 465 |
+/** |
|
| 466 |
+ * @} |
|
| 467 |
+ */ |
|
| 468 |
+ |
|
| 469 |
+ |
|
| 470 |
+/** |
|
| 471 |
+ * @} |
|
| 472 |
+ */ |
|
| 473 |
+ |
|
| 474 |
+ |
|
| 475 |
+/** |
|
| 476 |
+ * @} |
|
| 477 |
+ */ |
|
| 478 |
+ |