STM32_USB_Device_Library
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Outline
Includes
#include "usbd_ctlreq.h"
#include "usbd_ioreq.h"
#include "usbd_composite_builder.h"
USBD_StdDevReq(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
USBD_StdItfReq(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
USBD_StdEPReq(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
USBD_GetDescriptor(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
USBD_SetAddress(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
USBD_SetConfig(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
USBD_GetConfig(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
USBD_GetStatus(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
USBD_SetFeature(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
USBD_ClrFeature(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
USBD_ParseSetupRequest(USBD_SetupReqTypedef *, uint8_t *)
USBD_CtlError(USBD_HandleTypeDef *, USBD_SetupReqTypedef *)
USBD_GetString(uint8_t *, uint8_t *, uint16_t *)
USBD_GetLen(uint8_t *)
Files
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SourceVuSTM32 Libraries and SamplesSTM32_USB_Device_LibraryCore/Src/usbd_ctlreq.c
 
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/** ****************************************************************************** * @file usbd_req.c * @author MCD Application Team * @brief This file provides the standard USB requests following chapter 9. ****************************************************************************** * @attention * * Copyright (c) 2015 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** *//* ... */ /* Includes ------------------------------------------------------------------*/ #include "usbd_ctlreq.h" #include "usbd_ioreq.h" #ifdef USE_USBD_COMPOSITE #include "usbd_composite_builder.h" #endif /* USE_USBD_COMPOSITE */ /** @addtogroup STM32_USBD_STATE_DEVICE_LIBRARY * @{ *//* ... */ /** @defgroup USBD_REQ * @brief USB standard requests module * @{ *//* ... */ /** @defgroup USBD_REQ_Private_TypesDefinitions * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup USBD_REQ_Private_Defines * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup USBD_REQ_Private_Macros * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup USBD_REQ_Private_Variables * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup USBD_REQ_Private_FunctionPrototypes * @{ *//* ... */ static void USBD_GetDescriptor(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req); static void USBD_SetAddress(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req); static USBD_StatusTypeDef USBD_SetConfig(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req); static void USBD_GetConfig(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req); static void USBD_GetStatus(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req); static void USBD_SetFeature(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req); static void USBD_ClrFeature(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req); static uint8_t USBD_GetLen(uint8_t *buf); /** * @} *//* ... */ /** @defgroup USBD_REQ_Private_Functions * @{ *//* ... */ /** * @brief USBD_StdDevReq * Handle standard usb device requests * @param pdev: device instance * @param req: usb request * @retval status *//* ... */ USBD_StatusTypeDef USBD_StdDevReq(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { USBD_StatusTypeDef ret = USBD_OK; switch (req->bmRequest & USB_REQ_TYPE_MASK) { case USB_REQ_TYPE_CLASS: case USB_REQ_TYPE_VENDOR: ret = (USBD_StatusTypeDef)pdev->pClass[pdev->classId]->Setup(pdev, req); break; case USB_REQ_TYPE_VENDOR: case USB_REQ_TYPE_STANDARD: switch (req->bRequest) { case USB_REQ_GET_DESCRIPTOR: USBD_GetDescriptor(pdev, req); break; case USB_REQ_GET_DESCRIPTOR: case USB_REQ_SET_ADDRESS: USBD_SetAddress(pdev, req); break; case USB_REQ_SET_ADDRESS: case USB_REQ_SET_CONFIGURATION: ret = USBD_SetConfig(pdev, req); break; case USB_REQ_SET_CONFIGURATION: case USB_REQ_GET_CONFIGURATION: USBD_GetConfig(pdev, req); break; case USB_REQ_GET_CONFIGURATION: case USB_REQ_GET_STATUS: USBD_GetStatus(pdev, req); break; case USB_REQ_GET_STATUS: case USB_REQ_SET_FEATURE: USBD_SetFeature(pdev, req); break; case USB_REQ_SET_FEATURE: case USB_REQ_CLEAR_FEATURE: USBD_ClrFeature(pdev, req); break; case USB_REQ_CLEAR_FEATURE: default: USBD_CtlError(pdev, req); break;default }switch (req->bRequest) { ... } break; case USB_REQ_TYPE_STANDARD: default: USBD_CtlError(pdev, req); break;default }switch (req->bmRequest & USB_REQ_TYPE_MASK) { ... } return ret; }{ ... } /** * @brief USBD_StdItfReq * Handle standard usb interface requests * @param pdev: device instance * @param req: usb request * @retval status *//* ... */ USBD_StatusTypeDef USBD_StdItfReq(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { USBD_StatusTypeDef ret = USBD_OK; uint8_t idx; switch (req->bmRequest & USB_REQ_TYPE_MASK) { case USB_REQ_TYPE_CLASS: case USB_REQ_TYPE_VENDOR: case USB_REQ_TYPE_STANDARD: switch (pdev->dev_state) { case USBD_STATE_DEFAULT: case USBD_STATE_ADDRESSED: case USBD_STATE_CONFIGURED: if (LOBYTE(req->wIndex) <= USBD_MAX_NUM_INTERFACES) { /* Get the class index relative to this interface */ idx = USBD_CoreFindIF(pdev, LOBYTE(req->wIndex)); if (((uint8_t)idx != 0xFFU) && (idx < USBD_MAX_SUPPORTED_CLASS)) { /* Call the class data out function to manage the request */ if (pdev->pClass[idx]->Setup != NULL) { pdev->classId = idx; ret = (USBD_StatusTypeDef)(pdev->pClass[idx]->Setup(pdev, req)); }if (pdev->pClass[idx]->Setup != NULL) { ... } else { /* should never reach this condition */ ret = USBD_FAIL; }else { ... } }if (((uint8_t)idx != 0xFFU) && (idx < USBD_MAX_SUPPORTED_CLASS)) { ... } else { /* No relative interface found */ ret = USBD_FAIL; }else { ... } if ((req->wLength == 0U) && (ret == USBD_OK)) { (void)USBD_CtlSendStatus(pdev); }if ((req->wLength == 0U) && (ret == USBD_OK)) { ... } }if (LOBYTE(req->wIndex) <= USBD_MAX_NUM_INTERFACES) { ... } else { USBD_CtlError(pdev, req); }else { ... } break; case USBD_STATE_CONFIGURED: default: USBD_CtlError(pdev, req); break;default }switch (pdev->dev_state) { ... } break; case USB_REQ_TYPE_STANDARD: default: USBD_CtlError(pdev, req); break;default }switch (req->bmRequest & USB_REQ_TYPE_MASK) { ... } return ret; }{ ... } /** * @brief USBD_StdEPReq * Handle standard usb endpoint requests * @param pdev: device instance * @param req: usb request * @retval status *//* ... */ USBD_StatusTypeDef USBD_StdEPReq(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { USBD_EndpointTypeDef *pep; uint8_t ep_addr; uint8_t idx; USBD_StatusTypeDef ret = USBD_OK; ep_addr = LOBYTE(req->wIndex); switch (req->bmRequest & USB_REQ_TYPE_MASK) { case USB_REQ_TYPE_CLASS: case USB_REQ_TYPE_VENDOR: /* Get the class index relative to this endpoint */ idx = USBD_CoreFindEP(pdev, ep_addr); if (((uint8_t)idx != 0xFFU) && (idx < USBD_MAX_SUPPORTED_CLASS)) { pdev->classId = idx; /* Call the class data out function to manage the request */ if (pdev->pClass[idx]->Setup != NULL) { ret = (USBD_StatusTypeDef)pdev->pClass[idx]->Setup(pdev, req); }if (pdev->pClass[idx]->Setup != NULL) { ... } }if (((uint8_t)idx != 0xFFU) && (idx < USBD_MAX_SUPPORTED_CLASS)) { ... } break; case USB_REQ_TYPE_VENDOR: case USB_REQ_TYPE_STANDARD: switch (req->bRequest) { case USB_REQ_SET_FEATURE: switch (pdev->dev_state) { case USBD_STATE_ADDRESSED: if ((ep_addr != 0x00U) && (ep_addr != 0x80U)) { (void)USBD_LL_StallEP(pdev, ep_addr); (void)USBD_LL_StallEP(pdev, 0x80U); }if ((ep_addr != 0x00U) && (ep_addr != 0x80U)) { ... } else { USBD_CtlError(pdev, req); }else { ... } break; case USBD_STATE_ADDRESSED: case USBD_STATE_CONFIGURED: if (req->wValue == USB_FEATURE_EP_HALT) { if ((ep_addr != 0x00U) && (ep_addr != 0x80U) && (req->wLength == 0x00U)) { (void)USBD_LL_StallEP(pdev, ep_addr); }if ((ep_addr != 0x00U) && (ep_addr != 0x80U) && (req->wLength == 0x00U)) { ... } }if (req->wValue == USB_FEATURE_EP_HALT) { ... } (void)USBD_CtlSendStatus(pdev); break; case USBD_STATE_CONFIGURED: default: USBD_CtlError(pdev, req); break;default }switch (pdev->dev_state) { ... } break; case USB_REQ_SET_FEATURE: case USB_REQ_CLEAR_FEATURE: switch (pdev->dev_state) { case USBD_STATE_ADDRESSED: if ((ep_addr != 0x00U) && (ep_addr != 0x80U)) { (void)USBD_LL_StallEP(pdev, ep_addr); (void)USBD_LL_StallEP(pdev, 0x80U); }if ((ep_addr != 0x00U) && (ep_addr != 0x80U)) { ... } else { USBD_CtlError(pdev, req); }else { ... } break; case USBD_STATE_ADDRESSED: case USBD_STATE_CONFIGURED: if (req->wValue == USB_FEATURE_EP_HALT) { if ((ep_addr & 0x7FU) != 0x00U) { (void)USBD_LL_ClearStallEP(pdev, ep_addr); }if ((ep_addr & 0x7FU) != 0x00U) { ... } (void)USBD_CtlSendStatus(pdev); /* Get the class index relative to this interface */ idx = USBD_CoreFindEP(pdev, ep_addr); if (((uint8_t)idx != 0xFFU) && (idx < USBD_MAX_SUPPORTED_CLASS)) { pdev->classId = idx; /* Call the class data out function to manage the request */ if (pdev->pClass[idx]->Setup != NULL) { ret = (USBD_StatusTypeDef)(pdev->pClass[idx]->Setup(pdev, req)); }if (pdev->pClass[idx]->Setup != NULL) { ... } }if (((uint8_t)idx != 0xFFU) && (idx < USBD_MAX_SUPPORTED_CLASS)) { ... } }if (req->wValue == USB_FEATURE_EP_HALT) { ... } break; case USBD_STATE_CONFIGURED: default: USBD_CtlError(pdev, req); break;default }switch (pdev->dev_state) { ... } break; case USB_REQ_CLEAR_FEATURE: case USB_REQ_GET_STATUS: switch (pdev->dev_state) { case USBD_STATE_ADDRESSED: if ((ep_addr != 0x00U) && (ep_addr != 0x80U)) { USBD_CtlError(pdev, req); break; }if ((ep_addr != 0x00U) && (ep_addr != 0x80U)) { ... } pep = ((ep_addr & 0x80U) == 0x80U) ? &pdev->ep_in[ep_addr & 0x7FU] : \ &pdev->ep_out[ep_addr & 0x7FU]; pep->status = 0x0000U; (void)USBD_CtlSendData(pdev, (uint8_t *)&pep->status, 2U); break; case USBD_STATE_ADDRESSED: case USBD_STATE_CONFIGURED: if ((ep_addr & 0x80U) == 0x80U) { if (pdev->ep_in[ep_addr & 0xFU].is_used == 0U) { USBD_CtlError(pdev, req); break; }if (pdev->ep_in[ep_addr & 0xFU].is_used == 0U) { ... } }if ((ep_addr & 0x80U) == 0x80U) { ... } else { if (pdev->ep_out[ep_addr & 0xFU].is_used == 0U) { USBD_CtlError(pdev, req); break; }if (pdev->ep_out[ep_addr & 0xFU].is_used == 0U) { ... } }else { ... } pep = ((ep_addr & 0x80U) == 0x80U) ? &pdev->ep_in[ep_addr & 0x7FU] : \ &pdev->ep_out[ep_addr & 0x7FU]; if ((ep_addr == 0x00U) || (ep_addr == 0x80U)) { pep->status = 0x0000U; }if ((ep_addr == 0x00U) || (ep_addr == 0x80U)) { ... } else if (USBD_LL_IsStallEP(pdev, ep_addr) != 0U) { pep->status = 0x0001U; }else if (USBD_LL_IsStallEP(pdev, ep_addr) != 0U) { ... } else { pep->status = 0x0000U; }else { ... } (void)USBD_CtlSendData(pdev, (uint8_t *)&pep->status, 2U); break; case USBD_STATE_CONFIGURED: default: USBD_CtlError(pdev, req); break;default }switch (pdev->dev_state) { ... } break; case USB_REQ_GET_STATUS: default: USBD_CtlError(pdev, req); break;default }switch (req->bRequest) { ... } break; case USB_REQ_TYPE_STANDARD: default: USBD_CtlError(pdev, req); break;default }switch (req->bmRequest & USB_REQ_TYPE_MASK) { ... } return ret; }{ ... } /** * @brief USBD_GetDescriptor * Handle Get Descriptor requests * @param pdev: device instance * @param req: usb request * @retval status *//* ... */ static void USBD_GetDescriptor(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { uint16_t len = 0U; uint8_t *pbuf = NULL; uint8_t err = 0U; switch (req->wValue >> 8) { #if ((USBD_LPM_ENABLED == 1U) || (USBD_CLASS_BOS_ENABLED == 1U)) case USB_DESC_TYPE_BOS: if (pdev->pDesc->GetBOSDescriptor != NULL) { pbuf = pdev->pDesc->GetBOSDescriptor(pdev->dev_speed, &len); }if (pdev->pDesc->GetBOSDescriptor != NULL) { ... } else { USBD_CtlError(pdev, req); err++; }else { ... } break;/* ... */ #endif /* (USBD_LPM_ENABLED == 1U) || (USBD_CLASS_BOS_ENABLED == 1U) */case USB_DESC_TYPE_BOS: case USB_DESC_TYPE_DEVICE: pbuf = pdev->pDesc->GetDeviceDescriptor(pdev->dev_speed, &len); break; case USB_DESC_TYPE_DEVICE: case USB_DESC_TYPE_CONFIGURATION: if (pdev->dev_speed == USBD_SPEED_HIGH) { #ifdef USE_USBD_COMPOSITE if ((uint8_t)(pdev->NumClasses) > 0U) { pbuf = (uint8_t *)USBD_CMPSIT.GetHSConfigDescriptor(&len); }if ((uint8_t)(pdev->NumClasses) > 0U) { ... } else #endif /* USE_USBD_COMPOSITE */ { pbuf = (uint8_t *)pdev->pClass[0]->GetHSConfigDescriptor(&len); }else { ... } pbuf[1] = USB_DESC_TYPE_CONFIGURATION; }if (pdev->dev_speed == USBD_SPEED_HIGH) { ... } else { #ifdef USE_USBD_COMPOSITE if ((uint8_t)(pdev->NumClasses) > 0U) { pbuf = (uint8_t *)USBD_CMPSIT.GetFSConfigDescriptor(&len); }if ((uint8_t)(pdev->NumClasses) > 0U) { ... } else #endif /* USE_USBD_COMPOSITE */ { pbuf = (uint8_t *)pdev->pClass[0]->GetFSConfigDescriptor(&len); }else { ... } pbuf[1] = USB_DESC_TYPE_CONFIGURATION; }else { ... } break; case USB_DESC_TYPE_CONFIGURATION: case USB_DESC_TYPE_STRING: switch ((uint8_t)(req->wValue)) { case USBD_IDX_LANGID_STR: if (pdev->pDesc->GetLangIDStrDescriptor != NULL) { pbuf = pdev->pDesc->GetLangIDStrDescriptor(pdev->dev_speed, &len); }if (pdev->pDesc->GetLangIDStrDescriptor != NULL) { ... } else { USBD_CtlError(pdev, req); err++; }else { ... } break; case USBD_IDX_LANGID_STR: case USBD_IDX_MFC_STR: if (pdev->pDesc->GetManufacturerStrDescriptor != NULL) { pbuf = pdev->pDesc->GetManufacturerStrDescriptor(pdev->dev_speed, &len); }if (pdev->pDesc->GetManufacturerStrDescriptor != NULL) { ... } else { USBD_CtlError(pdev, req); err++; }else { ... } break; case USBD_IDX_MFC_STR: case USBD_IDX_PRODUCT_STR: if (pdev->pDesc->GetProductStrDescriptor != NULL) { pbuf = pdev->pDesc->GetProductStrDescriptor(pdev->dev_speed, &len); }if (pdev->pDesc->GetProductStrDescriptor != NULL) { ... } else { USBD_CtlError(pdev, req); err++; }else { ... } break; case USBD_IDX_PRODUCT_STR: case USBD_IDX_SERIAL_STR: if (pdev->pDesc->GetSerialStrDescriptor != NULL) { pbuf = pdev->pDesc->GetSerialStrDescriptor(pdev->dev_speed, &len); }if (pdev->pDesc->GetSerialStrDescriptor != NULL) { ... } else { USBD_CtlError(pdev, req); err++; }else { ... } break; case USBD_IDX_SERIAL_STR: case USBD_IDX_CONFIG_STR: if (pdev->pDesc->GetConfigurationStrDescriptor != NULL) { pbuf = pdev->pDesc->GetConfigurationStrDescriptor(pdev->dev_speed, &len); }if (pdev->pDesc->GetConfigurationStrDescriptor != NULL) { ... } else { USBD_CtlError(pdev, req); err++; }else { ... } break; case USBD_IDX_CONFIG_STR: case USBD_IDX_INTERFACE_STR: if (pdev->pDesc->GetInterfaceStrDescriptor != NULL) { pbuf = pdev->pDesc->GetInterfaceStrDescriptor(pdev->dev_speed, &len); }if (pdev->pDesc->GetInterfaceStrDescriptor != NULL) { ... } else { USBD_CtlError(pdev, req); err++; }else { ... } break; case USBD_IDX_INTERFACE_STR: default: #if (USBD_SUPPORT_USER_STRING_DESC == 1U) pbuf = NULL; for (uint32_t idx = 0U; (idx < pdev->NumClasses); idx++) { if (pdev->pClass[idx]->GetUsrStrDescriptor != NULL) { pdev->classId = idx; pbuf = pdev->pClass[idx]->GetUsrStrDescriptor(pdev, LOBYTE(req->wValue), &len); if (pbuf == NULL) /* This means that no class recognized the string index */ { continue; ...} else { break; }else { ... } }if (pdev->pClass[idx]->GetUsrStrDescriptor != NULL) { ... } }for (uint32_t idx = 0U; (idx < pdev->NumClasses); idx++) { ... } /* ... */#endif /* USBD_SUPPORT_USER_STRING_DESC */ #if (USBD_CLASS_USER_STRING_DESC == 1U) if (pdev->pDesc->GetUserStrDescriptor != NULL) { pbuf = pdev->pDesc->GetUserStrDescriptor(pdev->dev_speed, LOBYTE(req->wValue), &len); }if (pdev->pDesc->GetUserStrDescriptor != NULL) { ... } else { USBD_CtlError(pdev, req); err++; }else { ... } /* ... */#endif /* USBD_SUPPORT_USER_STRING_DESC */ #if ((USBD_CLASS_USER_STRING_DESC == 0U) && (USBD_SUPPORT_USER_STRING_DESC == 0U)) USBD_CtlError(pdev, req); err++;/* ... */ #endif /* (USBD_CLASS_USER_STRING_DESC == 0U) && (USBD_SUPPORT_USER_STRING_DESC == 0U) */ break;default }switch ((uint8_t)(req->wValue)) { ... } break; case USB_DESC_TYPE_STRING: case USB_DESC_TYPE_DEVICE_QUALIFIER: if (pdev->dev_speed == USBD_SPEED_HIGH) { #ifdef USE_USBD_COMPOSITE if ((uint8_t)(pdev->NumClasses) > 0U) { pbuf = (uint8_t *)USBD_CMPSIT.GetDeviceQualifierDescriptor(&len); }if ((uint8_t)(pdev->NumClasses) > 0U) { ... } else #endif /* USE_USBD_COMPOSITE */ { pbuf = (uint8_t *)pdev->pClass[0]->GetDeviceQualifierDescriptor(&len); }else { ... } }if (pdev->dev_speed == USBD_SPEED_HIGH) { ... } else { USBD_CtlError(pdev, req); err++; }else { ... } break; case USB_DESC_TYPE_DEVICE_QUALIFIER: case USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION: if (pdev->dev_speed == USBD_SPEED_HIGH) { #ifdef USE_USBD_COMPOSITE if ((uint8_t)(pdev->NumClasses) > 0U) { pbuf = (uint8_t *)USBD_CMPSIT.GetOtherSpeedConfigDescriptor(&len); }if ((uint8_t)(pdev->NumClasses) > 0U) { ... } else #endif /* USE_USBD_COMPOSITE */ { pbuf = (uint8_t *)pdev->pClass[0]->GetOtherSpeedConfigDescriptor(&len); }else { ... } pbuf[1] = USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION; }if (pdev->dev_speed == USBD_SPEED_HIGH) { ... } else { USBD_CtlError(pdev, req); err++; }else { ... } break; case USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION: default: USBD_CtlError(pdev, req); err++; break;default }switch (req->wValue >> 8) { ... } if (err != 0U) { return; }if (err != 0U) { ... } if (req->wLength != 0U) { if (len != 0U) { len = MIN(len, req->wLength); (void)USBD_CtlSendData(pdev, pbuf, len); }if (len != 0U) { ... } else { USBD_CtlError(pdev, req); }else { ... } }if (req->wLength != 0U) { ... } else { (void)USBD_CtlSendStatus(pdev); }else { ... } }{ ... } /** * @brief USBD_SetAddress * Set device address * @param pdev: device instance * @param req: usb request * @retval status *//* ... */ static void USBD_SetAddress(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { uint8_t dev_addr; if ((req->wIndex == 0U) && (req->wLength == 0U) && (req->wValue < 128U)) { dev_addr = (uint8_t)(req->wValue) & 0x7FU; if (pdev->dev_state == USBD_STATE_CONFIGURED) { USBD_CtlError(pdev, req); }if (pdev->dev_state == USBD_STATE_CONFIGURED) { ... } else { pdev->dev_address = dev_addr; (void)USBD_LL_SetUSBAddress(pdev, dev_addr); (void)USBD_CtlSendStatus(pdev); if (dev_addr != 0U) { pdev->dev_state = USBD_STATE_ADDRESSED; }if (dev_addr != 0U) { ... } else { pdev->dev_state = USBD_STATE_DEFAULT; }else { ... } }else { ... } }if ((req->wIndex == 0U) && (req->wLength == 0U) && (req->wValue < 128U)) { ... } else { USBD_CtlError(pdev, req); }else { ... } }{ ... } /** * @brief USBD_SetConfig * Handle Set device configuration request * @param pdev: device instance * @param req: usb request * @retval status *//* ... */ static USBD_StatusTypeDef USBD_SetConfig(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { USBD_StatusTypeDef ret = USBD_OK; static uint8_t cfgidx; cfgidx = (uint8_t)(req->wValue); if (cfgidx > USBD_MAX_NUM_CONFIGURATION) { USBD_CtlError(pdev, req); return USBD_FAIL; }if (cfgidx > USBD_MAX_NUM_CONFIGURATION) { ... } switch (pdev->dev_state) { case USBD_STATE_ADDRESSED: if (cfgidx != 0U) { pdev->dev_config = cfgidx; ret = USBD_SetClassConfig(pdev, cfgidx); if (ret != USBD_OK) { USBD_CtlError(pdev, req); pdev->dev_state = USBD_STATE_ADDRESSED; }if (ret != USBD_OK) { ... } else { (void)USBD_CtlSendStatus(pdev); pdev->dev_state = USBD_STATE_CONFIGURED; #if (USBD_USER_REGISTER_CALLBACK == 1U) if (pdev->DevStateCallback != NULL) { pdev->DevStateCallback(USBD_STATE_CONFIGURED, cfgidx); }if (pdev->DevStateCallback != NULL) { ... } /* ... */#endif /* USBD_USER_REGISTER_CALLBACK */ }else { ... } }if (cfgidx != 0U) { ... } else { (void)USBD_CtlSendStatus(pdev); }else { ... } break; case USBD_STATE_ADDRESSED: case USBD_STATE_CONFIGURED: if (cfgidx == 0U) { pdev->dev_state = USBD_STATE_ADDRESSED; pdev->dev_config = cfgidx; (void)USBD_ClrClassConfig(pdev, cfgidx); (void)USBD_CtlSendStatus(pdev); }if (cfgidx == 0U) { ... } else if (cfgidx != pdev->dev_config) { /* Clear old configuration */ (void)USBD_ClrClassConfig(pdev, (uint8_t)pdev->dev_config); /* set new configuration */ pdev->dev_config = cfgidx; ret = USBD_SetClassConfig(pdev, cfgidx); if (ret != USBD_OK) { USBD_CtlError(pdev, req); (void)USBD_ClrClassConfig(pdev, (uint8_t)pdev->dev_config); pdev->dev_state = USBD_STATE_ADDRESSED; }if (ret != USBD_OK) { ... } else { (void)USBD_CtlSendStatus(pdev); }else { ... } }else if (cfgidx != pdev->dev_config) { ... } else { (void)USBD_CtlSendStatus(pdev); }else { ... } break; case USBD_STATE_CONFIGURED: default: USBD_CtlError(pdev, req); (void)USBD_ClrClassConfig(pdev, cfgidx); ret = USBD_FAIL; break;default }switch (pdev->dev_state) { ... } return ret; }{ ... } /** * @brief USBD_GetConfig * Handle Get device configuration request * @param pdev: device instance * @param req: usb request * @retval status *//* ... */ static void USBD_GetConfig(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { if (req->wLength != 1U) { USBD_CtlError(pdev, req); }if (req->wLength != 1U) { ... } else { switch (pdev->dev_state) { case USBD_STATE_DEFAULT: case USBD_STATE_ADDRESSED: pdev->dev_default_config = 0U; (void)USBD_CtlSendData(pdev, (uint8_t *)&pdev->dev_default_config, 1U); break; case USBD_STATE_ADDRESSED: case USBD_STATE_CONFIGURED: (void)USBD_CtlSendData(pdev, (uint8_t *)&pdev->dev_config, 1U); break; case USBD_STATE_CONFIGURED: default: USBD_CtlError(pdev, req); break;default }switch (pdev->dev_state) { ... } }else { ... } }{ ... } /** * @brief USBD_GetStatus * Handle Get Status request * @param pdev: device instance * @param req: usb request * @retval status *//* ... */ static void USBD_GetStatus(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { switch (pdev->dev_state) { case USBD_STATE_DEFAULT: case USBD_STATE_ADDRESSED: case USBD_STATE_CONFIGURED: if (req->wLength != 0x2U) { USBD_CtlError(pdev, req); break; }if (req->wLength != 0x2U) { ... } #if (USBD_SELF_POWERED == 1U) pdev->dev_config_status = USB_CONFIG_SELF_POWERED; #else pdev->dev_config_status = 0U; #endif /* USBD_SELF_POWERED */ if (pdev->dev_remote_wakeup != 0U) { pdev->dev_config_status |= USB_CONFIG_REMOTE_WAKEUP; }if (pdev->dev_remote_wakeup != 0U) { ... } (void)USBD_CtlSendData(pdev, (uint8_t *)&pdev->dev_config_status, 2U); break; case USBD_STATE_CONFIGURED: default: USBD_CtlError(pdev, req); break;default }switch (pdev->dev_state) { ... } }{ ... } /** * @brief USBD_SetFeature * Handle Set device feature request * @param pdev: device instance * @param req: usb request * @retval status *//* ... */ static void USBD_SetFeature(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { if (req->wValue == USB_FEATURE_REMOTE_WAKEUP) { pdev->dev_remote_wakeup = 1U; (void)USBD_CtlSendStatus(pdev); }if (req->wValue == USB_FEATURE_REMOTE_WAKEUP) { ... } else if (req->wValue == USB_FEATURE_TEST_MODE) { pdev->dev_test_mode = (uint8_t)(req->wIndex >> 8); (void)USBD_CtlSendStatus(pdev); }else if (req->wValue == USB_FEATURE_TEST_MODE) { ... } else { USBD_CtlError(pdev, req); }else { ... } }{ ... } /** * @brief USBD_ClrFeature * Handle clear device feature request * @param pdev: device instance * @param req: usb request * @retval status *//* ... */ static void USBD_ClrFeature(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { switch (pdev->dev_state) { case USBD_STATE_DEFAULT: case USBD_STATE_ADDRESSED: case USBD_STATE_CONFIGURED: if (req->wValue == USB_FEATURE_REMOTE_WAKEUP) { pdev->dev_remote_wakeup = 0U; (void)USBD_CtlSendStatus(pdev); }if (req->wValue == USB_FEATURE_REMOTE_WAKEUP) { ... } break; case USBD_STATE_CONFIGURED: default: USBD_CtlError(pdev, req); break;default }switch (pdev->dev_state) { ... } }{ ... } /** * @brief USBD_ParseSetupRequest * Copy buffer into setup structure * @param pdev: device instance * @param req: usb request * @retval None *//* ... */ void USBD_ParseSetupRequest(USBD_SetupReqTypedef *req, uint8_t *pdata) { uint8_t *pbuff = pdata; req->bmRequest = *(uint8_t *)(pbuff); pbuff++; req->bRequest = *(uint8_t *)(pbuff); pbuff++; req->wValue = SWAPBYTE(pbuff); pbuff++; pbuff++; req->wIndex = SWAPBYTE(pbuff); pbuff++; pbuff++; req->wLength = SWAPBYTE(pbuff); }{ ... } /** * @brief USBD_CtlError * Handle USB low level Error * @param pdev: device instance * @param req: usb request * @retval None *//* ... */ void USBD_CtlError(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req) { UNUSED(req); (void)USBD_LL_StallEP(pdev, 0x80U); (void)USBD_LL_StallEP(pdev, 0U); }{ ... } /** * @brief USBD_GetString * Convert Ascii string into unicode one * @param desc : descriptor buffer * @param unicode : Formatted string buffer (unicode) * @param len : descriptor length * @retval None *//* ... */ void USBD_GetString(uint8_t *desc, uint8_t *unicode, uint16_t *len) { uint8_t idx = 0U; uint8_t *pdesc; if (desc == NULL) { return; }if (desc == NULL) { ... } pdesc = desc; *len = ((uint16_t)USBD_GetLen(pdesc) * 2U) + 2U; unicode[idx] = *(uint8_t *)len; idx++; unicode[idx] = USB_DESC_TYPE_STRING; idx++; while (*pdesc != (uint8_t)'\0') { unicode[idx] = *pdesc; pdesc++; idx++; unicode[idx] = 0U; idx++; }while (*pdesc != (uint8_t)'\0') { ... } }{ ... } /** * @brief USBD_GetLen * return the string length * @param buf : pointer to the ascii string buffer * @retval string length *//* ... */ static uint8_t USBD_GetLen(uint8_t *buf) { uint8_t len = 0U; uint8_t *pbuff = buf; while (*pbuff != (uint8_t)'\0') { len++; pbuff++; }while (*pbuff != (uint8_t)'\0') { ... } return len; }{ ... } /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */ Includes
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