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/**
******************************************************************************
* @file usbd_core.c
* @author MCD Application Team
* @brief This file provides all the USBD core functions.
******************************************************************************
* @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_core.h"
#ifdef USE_USBD_COMPOSITE
#include "usbd_composite_builder.h"
#endif /* USE_USBD_COMPOSITE */
/** @addtogroup STM32_USBD_DEVICE_LIBRARY
* @{
*/
/** @defgroup USBD_CORE
* @brief usbd core module
* @{
*/
/** @defgroup USBD_CORE_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup USBD_CORE_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup USBD_CORE_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup USBD_CORE_Private_FunctionPrototypes
* @{
*/
/**
* @}
*/
/** @defgroup USBD_CORE_Private_Variables
* @{
*/
/**
* @}
*/
/** @defgroup USBD_CORE_Private_Functions
* @{
*/
/**
* @brief USBD_Init
* Initializes the device stack and load the class driver
* @param pdev: device instance
* @param pdesc: Descriptor structure address
* @param id: Low level core index
* @retval None
*/
USBD_StatusTypeDef USBD_Init(USBD_HandleTypeDef *pdev,
USBD_DescriptorsTypeDef *pdesc, uint8_t id)
{
USBD_StatusTypeDef ret;
/* Check whether the USB Host handle is valid */
if (pdev == NULL)
{
#if (USBD_DEBUG_LEVEL > 1U)
USBD_ErrLog("Invalid Device handle");
#endif /* (USBD_DEBUG_LEVEL > 1U) */
return USBD_FAIL;
}
#ifdef USE_USBD_COMPOSITE
/* Parse the table of classes in use */
for (uint32_t i = 0; i < USBD_MAX_SUPPORTED_CLASS; i++)
{
/* Unlink previous class*/
pdev->pClass[i] = NULL;
pdev->pUserData[i] = NULL;
/* Set class as inactive */
pdev->tclasslist[i].Active = 0;
pdev->NumClasses = 0;
pdev->classId = 0;
}
#else
/* Unlink previous class*/
pdev->pClass[0] = NULL;
pdev->pUserData[0] = NULL;
#endif /* USE_USBD_COMPOSITE */
pdev->pConfDesc = NULL;
/* Assign USBD Descriptors */
if (pdesc != NULL)
{
pdev->pDesc = pdesc;
}
/* Set Device initial State */
pdev->dev_state = USBD_STATE_DEFAULT;
pdev->id = id;
/* Initialize low level driver */
ret = USBD_LL_Init(pdev);
return ret;
}
/**
* @brief USBD_DeInit
* Re-Initialize the device library
* @param pdev: device instance
* @retval status: status
*/
USBD_StatusTypeDef USBD_DeInit(USBD_HandleTypeDef *pdev)
{
USBD_StatusTypeDef ret;
/* Disconnect the USB Device */
(void)USBD_LL_Stop(pdev);
/* Set Default State */
pdev->dev_state = USBD_STATE_DEFAULT;
#ifdef USE_USBD_COMPOSITE
/* Parse the table of classes in use */
for (uint32_t i = 0; i < USBD_MAX_SUPPORTED_CLASS; i++)
{
/* Check if current class is in use */
if ((pdev->tclasslist[i].Active) == 1U)
{
if (pdev->pClass[i] != NULL)
{
pdev->classId = i;
/* Free Class Resources */
pdev->pClass[i]->DeInit(pdev, (uint8_t)pdev->dev_config);
}
}
}
#else
/* Free Class Resources */
if (pdev->pClass[0] != NULL)
{
pdev->pClass[0]->DeInit(pdev, (uint8_t)pdev->dev_config);
}
pdev->pUserData[0] = NULL;
#endif /* USE_USBD_COMPOSITE */
/* Free Device descriptors resources */
pdev->pDesc = NULL;
pdev->pConfDesc = NULL;
/* DeInitialize low level driver */
ret = USBD_LL_DeInit(pdev);
return ret;
}
/**
* @brief USBD_RegisterClass
* Link class driver to Device Core.
* @param pDevice : Device Handle
* @param pclass: Class handle
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_RegisterClass(USBD_HandleTypeDef *pdev, USBD_ClassTypeDef *pclass)
{
uint16_t len = 0U;
if (pclass == NULL)
{
#if (USBD_DEBUG_LEVEL > 1U)
USBD_ErrLog("Invalid Class handle");
#endif /* (USBD_DEBUG_LEVEL > 1U) */
return USBD_FAIL;
}
/* link the class to the USB Device handle */
pdev->pClass[0] = pclass;
/* Get Device Configuration Descriptor */
#ifdef USE_USB_HS
if (pdev->pClass[pdev->classId]->GetHSConfigDescriptor != NULL)
{
pdev->pConfDesc = (void *)pdev->pClass[pdev->classId]->GetHSConfigDescriptor(&len);
}
#else /* Default USE_USB_FS */
if (pdev->pClass[pdev->classId]->GetFSConfigDescriptor != NULL)
{
pdev->pConfDesc = (void *)pdev->pClass[pdev->classId]->GetFSConfigDescriptor(&len);
}
#endif /* USE_USB_FS */
/* Increment the NumClasses */
pdev->NumClasses ++;
return USBD_OK;
}
#ifdef USE_USBD_COMPOSITE
/**
* @brief USBD_RegisterClassComposite
* Link class driver to Device Core.
* @param pdev : Device Handle
* @param pclass: Class handle
* @param classtype: Class type
* @param EpAddr: Endpoint Address handle
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_RegisterClassComposite(USBD_HandleTypeDef *pdev, USBD_ClassTypeDef *pclass,
USBD_CompositeClassTypeDef classtype, uint8_t *EpAddr)
{
USBD_StatusTypeDef ret = USBD_OK;
uint16_t len = 0U;
if ((pdev->classId < USBD_MAX_SUPPORTED_CLASS) && (pdev->NumClasses < USBD_MAX_SUPPORTED_CLASS))
{
if ((uint32_t)pclass != 0U)
{
/* Link the class to the USB Device handle */
pdev->pClass[pdev->classId] = pclass;
ret = USBD_OK;
pdev->tclasslist[pdev->classId].EpAdd = EpAddr;
/* Call the composite class builder */
(void)USBD_CMPSIT_AddClass(pdev, pclass, classtype, 0);
/* Increment the ClassId for the next occurrence */
pdev->classId ++;
pdev->NumClasses ++;
}
else
{
#if (USBD_DEBUG_LEVEL > 1U)
USBD_ErrLog("Invalid Class handle");
#endif /* (USBD_DEBUG_LEVEL > 1U) */
ret = USBD_FAIL;
}
}
if (ret == USBD_OK)
{
/* Get Device Configuration Descriptor */
#ifdef USE_USB_HS
pdev->pConfDesc = USBD_CMPSIT.GetHSConfigDescriptor(&len);
#else /* Default USE_USB_FS */
pdev->pConfDesc = USBD_CMPSIT.GetFSConfigDescriptor(&len);
#endif /* USE_USB_FS */
}
return ret;
}
/**
* @brief USBD_UnRegisterClassComposite
* UnLink all composite class drivers from Device Core.
* @param pDevice : Device Handle
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_UnRegisterClassComposite(USBD_HandleTypeDef *pdev)
{
USBD_StatusTypeDef ret = USBD_FAIL;
uint8_t idx1;
uint8_t idx2;
/* Unroll all activated classes */
for (idx1 = 0; idx1 < pdev->NumClasses; idx1++)
{
/* Check if the class correspond to the requested type and if it is active */
if (pdev->tclasslist[idx1].Active == 1U)
{
/* Set the new class ID */
pdev->classId = idx1;
/* Free resources used by the selected class */
if (pdev->pClass[pdev->classId] != NULL)
{
/* Free Class Resources */
if (pdev->pClass[pdev->classId]->DeInit(pdev, (uint8_t)pdev->dev_config) != 0U)
{
#if (USBD_DEBUG_LEVEL > 1U)
USBD_ErrLog("Class DeInit didn't succeed!, can't unregister selected class");
#endif /* (USBD_DEBUG_LEVEL > 1U) */
ret = USBD_FAIL;
}
}
/* Free the class pointer */
pdev->pClass[pdev->classId] = NULL;
/* Free the class location in classes table and reset its parameters to zero */
pdev->tclasslist[pdev->classId].ClassType = CLASS_TYPE_NONE;
pdev->tclasslist[pdev->classId].ClassId = 0U;
pdev->tclasslist[pdev->classId].Active = 0U;
pdev->tclasslist[pdev->classId].NumEps = 0U;
pdev->tclasslist[pdev->classId].NumIf = 0U;
pdev->tclasslist[pdev->classId].CurrPcktSze = 0U;
for (idx2 = 0U; idx2 < USBD_MAX_CLASS_ENDPOINTS; idx2++)
{
pdev->tclasslist[pdev->classId].Eps[idx2].add = 0U;
pdev->tclasslist[pdev->classId].Eps[idx2].type = 0U;
pdev->tclasslist[pdev->classId].Eps[idx2].size = 0U;
pdev->tclasslist[pdev->classId].Eps[idx2].is_used = 0U;
}
for (idx2 = 0U; idx2 < USBD_MAX_CLASS_INTERFACES; idx2++)
{
pdev->tclasslist[pdev->classId].Ifs[idx2] = 0U;
}
}
}
/* Reset the configuration descriptor */
(void)USBD_CMPST_ClearConfDesc(pdev);
/* Reset the class ID and number of classes */
pdev->classId = 0U;
pdev->NumClasses = 0U;
return ret;
}
#endif /* USE_USBD_COMPOSITE */
#if (USBD_USER_REGISTER_CALLBACK == 1U)
/**
* @brief USBD_RegisterDevStateCallback
* @param pdev : Device Handle
* @param pUserCallback: User Callback
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_RegisterDevStateCallback(USBD_HandleTypeDef *pdev, USBD_DevStateCallbackTypeDef pUserCallback)
{
pdev->DevStateCallback = pUserCallback;
return USBD_OK;
}
#endif /* USBD_USER_REGISTER_CALLBACK */
/**
* @brief USBD_Start
* Start the USB Device Core.
* @param pdev: Device Handle
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_Start(USBD_HandleTypeDef *pdev)
{
#ifdef USE_USBD_COMPOSITE
pdev->classId = 0U;
#endif /* USE_USBD_COMPOSITE */
/* Start the low level driver */
return USBD_LL_Start(pdev);
}
/**
* @brief USBD_Stop
* Stop the USB Device Core.
* @param pdev: Device Handle
* @retval USBD Status
*/
USBD_StatusTypeDef USBD_Stop(USBD_HandleTypeDef *pdev)
{
/* Disconnect USB Device */
(void)USBD_LL_Stop(pdev);
/* Free Class Resources */
#ifdef USE_USBD_COMPOSITE
/* Parse the table of classes in use */
for (uint32_t i = 0U; i < USBD_MAX_SUPPORTED_CLASS; i++)
{
/* Check if current class is in use */
if ((pdev->tclasslist[i].Active) == 1U)
{
if (pdev->pClass[i] != NULL)
{
pdev->classId = i;
/* Free Class Resources */
(void)pdev->pClass[i]->DeInit(pdev, (uint8_t)pdev->dev_config);
}
}
}
/* Reset the class ID */
pdev->classId = 0U;
#else
if (pdev->pClass[0] != NULL)
{
(void)pdev->pClass[0]->DeInit(pdev, (uint8_t)pdev->dev_config);
}
#endif /* USE_USBD_COMPOSITE */
return USBD_OK;
}
/**
* @brief USBD_RunTestMode
* Launch test mode process
* @param pdev: device instance
* @retval status
*/
USBD_StatusTypeDef USBD_RunTestMode(USBD_HandleTypeDef *pdev)
{
#ifdef USBD_HS_TESTMODE_ENABLE
USBD_StatusTypeDef ret;
/* Run USB HS test mode */
ret = USBD_LL_SetTestMode(pdev, pdev->dev_test_mode);
return ret;
#else
/* Prevent unused argument compilation warning */
UNUSED(pdev);
return USBD_OK;
#endif /* USBD_HS_TESTMODE_ENABLE */
}
/**
* @brief USBD_SetClassConfig
* Configure device and start the interface
* @param pdev: device instance
* @param cfgidx: configuration index
* @retval status
*/
USBD_StatusTypeDef USBD_SetClassConfig(USBD_HandleTypeDef *pdev, uint8_t cfgidx)
{
USBD_StatusTypeDef ret = USBD_OK;
#ifdef USE_USBD_COMPOSITE
/* Parse the table of classes in use */
for (uint32_t i = 0U; i < USBD_MAX_SUPPORTED_CLASS; i++)
{
/* Check if current class is in use */
if ((pdev->tclasslist[i].Active) == 1U)
{
if (pdev->pClass[i] != NULL)
{
pdev->classId = i;
/* Set configuration and Start the Class*/
if (pdev->pClass[i]->Init(pdev, cfgidx) != 0U)
{
ret = USBD_FAIL;
}
}
}
}
#else
if (pdev->pClass[0] != NULL)
{
/* Set configuration and Start the Class */
ret = (USBD_StatusTypeDef)pdev->pClass[0]->Init(pdev, cfgidx);
}
#endif /* USE_USBD_COMPOSITE */
return ret;
}
/**
* @brief USBD_ClrClassConfig
* Clear current configuration
* @param pdev: device instance
* @param cfgidx: configuration index
* @retval status: USBD_StatusTypeDef
*/
USBD_StatusTypeDef USBD_ClrClassConfig(USBD_HandleTypeDef *pdev, uint8_t cfgidx)
{
USBD_StatusTypeDef ret = USBD_OK;
#ifdef USE_USBD_COMPOSITE
/* Parse the table of classes in use */
for (uint32_t i = 0U; i < USBD_MAX_SUPPORTED_CLASS; i++)
{
/* Check if current class is in use */
if ((pdev->tclasslist[i].Active) == 1U)
{
if (pdev->pClass[i] != NULL)
{
pdev->classId = i;
/* Clear configuration and De-initialize the Class process */
if (pdev->pClass[i]->DeInit(pdev, cfgidx) != 0U)
{
ret = USBD_FAIL;
}
}
}
}
#else
/* Clear configuration and De-initialize the Class process */
if (pdev->pClass[0]->DeInit(pdev, cfgidx) != 0U)
{
ret = USBD_FAIL;
}
#endif /* USE_USBD_COMPOSITE */
return ret;
}
/**
* @brief USBD_LL_SetupStage
* Handle the setup stage
* @param pdev: device instance
* @retval status
*/
USBD_StatusTypeDef USBD_LL_SetupStage(USBD_HandleTypeDef *pdev, uint8_t *psetup)
{
USBD_StatusTypeDef ret;
USBD_ParseSetupRequest(&pdev->request, psetup);
pdev->ep0_state = USBD_EP0_SETUP;
pdev->ep0_data_len = pdev->request.wLength;
switch (pdev->request.bmRequest & 0x1FU)
{
case USB_REQ_RECIPIENT_DEVICE:
ret = USBD_StdDevReq(pdev, &pdev->request);
break;
case USB_REQ_RECIPIENT_INTERFACE:
ret = USBD_StdItfReq(pdev, &pdev->request);
break;
case USB_REQ_RECIPIENT_ENDPOINT:
ret = USBD_StdEPReq(pdev, &pdev->request);
break;
default:
ret = USBD_LL_StallEP(pdev, (pdev->request.bmRequest & 0x80U));
break;
}
return ret;
}
/**
* @brief USBD_LL_DataOutStage
* Handle data OUT stage
* @param pdev: device instance
* @param epnum: endpoint index
* @param pdata: data pointer
* @retval status
*/
USBD_StatusTypeDef USBD_LL_DataOutStage(USBD_HandleTypeDef *pdev,
uint8_t epnum, uint8_t *pdata)
{
USBD_EndpointTypeDef *pep;
USBD_StatusTypeDef ret = USBD_OK;
uint8_t idx;
if (epnum == 0U)
{
pep = &pdev->ep_out[0];
if (pdev->ep0_state == USBD_EP0_DATA_OUT)
{
if (pep->rem_length > pep->maxpacket)
{
pep->rem_length -= pep->maxpacket;
(void)USBD_CtlContinueRx(pdev, pdata, MIN(pep->rem_length, pep->maxpacket));
}
else
{
/* Find the class ID relative to the current request */
switch (pdev->request.bmRequest & 0x1FU)
{
case USB_REQ_RECIPIENT_DEVICE:
/* Device requests must be managed by the first instantiated class
(or duplicated by all classes for simplicity) */
idx = 0U;
break;
case USB_REQ_RECIPIENT_INTERFACE:
idx = USBD_CoreFindIF(pdev, LOBYTE(pdev->request.wIndex));
break;
case USB_REQ_RECIPIENT_ENDPOINT:
idx = USBD_CoreFindEP(pdev, LOBYTE(pdev->request.wIndex));
break;
default:
/* Back to the first class in case of doubt */
idx = 0U;
break;
}
if (idx < USBD_MAX_SUPPORTED_CLASS)
{
/* Setup the class ID and route the request to the relative class function */
if (pdev->dev_state == USBD_STATE_CONFIGURED)
{
if (pdev->pClass[idx]->EP0_RxReady != NULL)
{
pdev->classId = idx;
pdev->pClass[idx]->EP0_RxReady(pdev);
}
}
}
(void)USBD_CtlSendStatus(pdev);
}
}
}
else
{
/* Get the class index relative to this interface */
idx = USBD_CoreFindEP(pdev, (epnum & 0x7FU));
if (((uint16_t)idx != 0xFFU) && (idx < USBD_MAX_SUPPORTED_CLASS))
{
/* Call the class data out function to manage the request */
if (pdev->dev_state == USBD_STATE_CONFIGURED)
{
if (pdev->pClass[idx]->DataOut != NULL)
{
pdev->classId = idx;
ret = (USBD_StatusTypeDef)pdev->pClass[idx]->DataOut(pdev, epnum);
}
}
if (ret != USBD_OK)
{
return ret;
}
}
}
return USBD_OK;
}
/**
* @brief USBD_LL_DataInStage
* Handle data in stage
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
USBD_StatusTypeDef USBD_LL_DataInStage(USBD_HandleTypeDef *pdev,
uint8_t epnum, uint8_t *pdata)
{
USBD_EndpointTypeDef *pep;
USBD_StatusTypeDef ret;
uint8_t idx;
if (epnum == 0U)
{
pep = &pdev->ep_in[0];
if (pdev->ep0_state == USBD_EP0_DATA_IN)
{
if (pep->rem_length > pep->maxpacket)
{
pep->rem_length -= pep->maxpacket;
(void)USBD_CtlContinueSendData(pdev, pdata, pep->rem_length);
/* Prepare endpoint for premature end of transfer */
(void)USBD_LL_PrepareReceive(pdev, 0U, NULL, 0U);
}
else
{
/* last packet is MPS multiple, so send ZLP packet */
if ((pep->maxpacket == pep->rem_length) &&
(pep->total_length >= pep->maxpacket) &&
(pep->total_length < pdev->ep0_data_len))
{
(void)USBD_CtlContinueSendData(pdev, NULL, 0U);
pdev->ep0_data_len = 0U;
/* Prepare endpoint for premature end of transfer */
(void)USBD_LL_PrepareReceive(pdev, 0U, NULL, 0U);
}
else
{
if (pdev->dev_state == USBD_STATE_CONFIGURED)
{
if (pdev->pClass[0]->EP0_TxSent != NULL)
{
pdev->classId = 0U;
pdev->pClass[0]->EP0_TxSent(pdev);
}
}
(void)USBD_LL_StallEP(pdev, 0x80U);
(void)USBD_CtlReceiveStatus(pdev);
}
}
}
if (pdev->dev_test_mode != 0U)
{
(void)USBD_RunTestMode(pdev);
pdev->dev_test_mode = 0U;
}
}
else
{
/* Get the class index relative to this interface */
idx = USBD_CoreFindEP(pdev, ((uint8_t)epnum | 0x80U));
if (((uint16_t)idx != 0xFFU) && (idx < USBD_MAX_SUPPORTED_CLASS))
{
/* Call the class data out function to manage the request */
if (pdev->dev_state == USBD_STATE_CONFIGURED)
{
if (pdev->pClass[idx]->DataIn != NULL)
{
pdev->classId = idx;
ret = (USBD_StatusTypeDef)pdev->pClass[idx]->DataIn(pdev, epnum);
if (ret != USBD_OK)
{
return ret;
}
}
}
}
}
return USBD_OK;
}
/**
* @brief USBD_LL_Reset
* Handle Reset event
* @param pdev: device instance
* @retval status
*/
USBD_StatusTypeDef USBD_LL_Reset(USBD_HandleTypeDef *pdev)
{
USBD_StatusTypeDef ret = USBD_OK;
/* Upon Reset call user call back */
pdev->dev_state = USBD_STATE_DEFAULT;
pdev->ep0_state = USBD_EP0_IDLE;
pdev->dev_config = 0U;
pdev->dev_remote_wakeup = 0U;
pdev->dev_test_mode = 0U;
#ifdef USE_USBD_COMPOSITE
/* Parse the table of classes in use */
for (uint32_t i = 0U; i < USBD_MAX_SUPPORTED_CLASS; i++)
{
/* Check if current class is in use */
if ((pdev->tclasslist[i].Active) == 1U)
{
if (pdev->pClass[i] != NULL)
{
pdev->classId = i;
/* Clear configuration and De-initialize the Class process*/
if (pdev->pClass[i]->DeInit != NULL)
{
if (pdev->pClass[i]->DeInit(pdev, (uint8_t)pdev->dev_config) != USBD_OK)
{
ret = USBD_FAIL;
}
}
}
}
}
#else
if (pdev->pClass[0] != NULL)
{
if (pdev->pClass[0]->DeInit != NULL)
{
if (pdev->pClass[0]->DeInit(pdev, (uint8_t)pdev->dev_config) != USBD_OK)
{
ret = USBD_FAIL;
}
}
}
#endif /* USE_USBD_COMPOSITE */
/* Open EP0 OUT */
(void)USBD_LL_OpenEP(pdev, 0x00U, USBD_EP_TYPE_CTRL, USB_MAX_EP0_SIZE);
pdev->ep_out[0x00U & 0xFU].is_used = 1U;
pdev->ep_out[0].maxpacket = USB_MAX_EP0_SIZE;
/* Open EP0 IN */
(void)USBD_LL_OpenEP(pdev, 0x80U, USBD_EP_TYPE_CTRL, USB_MAX_EP0_SIZE);
pdev->ep_in[0x80U & 0xFU].is_used = 1U;
pdev->ep_in[0].maxpacket = USB_MAX_EP0_SIZE;
return ret;
}
/**
* @brief USBD_LL_SetSpeed
* Handle Reset event
* @param pdev: device instance
* @retval status
*/
USBD_StatusTypeDef USBD_LL_SetSpeed(USBD_HandleTypeDef *pdev,
USBD_SpeedTypeDef speed)
{
pdev->dev_speed = speed;
return USBD_OK;
}
/**
* @brief USBD_LL_Suspend
* Handle Suspend event
* @param pdev: device instance
* @retval status
*/
USBD_StatusTypeDef USBD_LL_Suspend(USBD_HandleTypeDef *pdev)
{
if (pdev->dev_state != USBD_STATE_SUSPENDED)
{
pdev->dev_old_state = pdev->dev_state;
}
pdev->dev_state = USBD_STATE_SUSPENDED;
return USBD_OK;
}
/**
* @brief USBD_LL_Resume
* Handle Resume event
* @param pdev: device instance
* @retval status
*/
USBD_StatusTypeDef USBD_LL_Resume(USBD_HandleTypeDef *pdev)
{
if (pdev->dev_state == USBD_STATE_SUSPENDED)
{
pdev->dev_state = pdev->dev_old_state;
}
return USBD_OK;
}
/**
* @brief USBD_LL_SOF
* Handle SOF event
* @param pdev: device instance
* @retval status
*/
USBD_StatusTypeDef USBD_LL_SOF(USBD_HandleTypeDef *pdev)
{
/* The SOF event can be distributed for all classes that support it */
if (pdev->dev_state == USBD_STATE_CONFIGURED)
{
#ifdef USE_USBD_COMPOSITE
/* Parse the table of classes in use */
for (uint32_t i = 0; i < USBD_MAX_SUPPORTED_CLASS; i++)
{
/* Check if current class is in use */
if ((pdev->tclasslist[i].Active) == 1U)
{
if (pdev->pClass[i] != NULL)
{
if (pdev->pClass[i]->SOF != NULL)
{
pdev->classId = i;
(void)pdev->pClass[i]->SOF(pdev);
}
}
}
}
#else
if (pdev->pClass[0] != NULL)
{
if (pdev->pClass[0]->SOF != NULL)
{
(void)pdev->pClass[0]->SOF(pdev);
}
}
#endif /* USE_USBD_COMPOSITE */
}
return USBD_OK;
}
/**
* @brief USBD_LL_IsoINIncomplete
* Handle iso in incomplete event
* @param pdev: device instance
* @retval status
*/
USBD_StatusTypeDef USBD_LL_IsoINIncomplete(USBD_HandleTypeDef *pdev,
uint8_t epnum)
{
if (pdev->pClass[pdev->classId] == NULL)
{
return USBD_FAIL;
}
if (pdev->dev_state == USBD_STATE_CONFIGURED)
{
if (pdev->pClass[pdev->classId]->IsoINIncomplete != NULL)
{
(void)pdev->pClass[pdev->classId]->IsoINIncomplete(pdev, epnum);
}
}
return USBD_OK;
}
/**
* @brief USBD_LL_IsoOUTIncomplete
* Handle iso out incomplete event
* @param pdev: device instance
* @retval status
*/
USBD_StatusTypeDef USBD_LL_IsoOUTIncomplete(USBD_HandleTypeDef *pdev,
uint8_t epnum)
{
if (pdev->pClass[pdev->classId] == NULL)
{
return USBD_FAIL;
}
if (pdev->dev_state == USBD_STATE_CONFIGURED)
{
if (pdev->pClass[pdev->classId]->IsoOUTIncomplete != NULL)
{
(void)pdev->pClass[pdev->classId]->IsoOUTIncomplete(pdev, epnum);
}
}
return USBD_OK;
}
/**
* @brief USBD_LL_DevConnected
* Handle device connection event
* @param pdev: device instance
* @retval status
*/
USBD_StatusTypeDef USBD_LL_DevConnected(USBD_HandleTypeDef *pdev)
{
/* Prevent unused argument compilation warning */
UNUSED(pdev);
return USBD_OK;
}
/**
* @brief USBD_LL_DevDisconnected
* Handle device disconnection event
* @param pdev: device instance
* @retval status
*/
USBD_StatusTypeDef USBD_LL_DevDisconnected(USBD_HandleTypeDef *pdev)
{
USBD_StatusTypeDef ret = USBD_OK;
/* Free Class Resources */
pdev->dev_state = USBD_STATE_DEFAULT;
#ifdef USE_USBD_COMPOSITE
/* Parse the table of classes in use */
for (uint32_t i = 0; i < USBD_MAX_SUPPORTED_CLASS; i++)
{
/* Check if current class is in use */
if ((pdev->tclasslist[i].Active) == 1U)
{
if (pdev->pClass[i] != NULL)
{
pdev->classId = i;
/* Clear configuration and De-initialize the Class process*/
if (pdev->pClass[i]->DeInit(pdev, (uint8_t)pdev->dev_config) != 0U)
{
ret = USBD_FAIL;
}
}
}
}
#else
if (pdev->pClass[0] != NULL)
{
if (pdev->pClass[0]->DeInit(pdev, (uint8_t)pdev->dev_config) != 0U)
{
ret = USBD_FAIL;
}
}
#endif /* USE_USBD_COMPOSITE */
return ret;
}
/**
* @brief USBD_CoreFindIF
* return the class index relative to the selected interface
* @param pdev: device instance
* @param index : selected interface number
* @retval index of the class using the selected interface number. OxFF if no class found.
*/
uint8_t USBD_CoreFindIF(USBD_HandleTypeDef *pdev, uint8_t index)
{
#ifdef USE_USBD_COMPOSITE
/* Parse the table of classes in use */
for (uint32_t i = 0U; i < USBD_MAX_SUPPORTED_CLASS; i++)
{
/* Check if current class is in use */
if ((pdev->tclasslist[i].Active) == 1U)
{
/* Parse all interfaces listed in the current class */
for (uint32_t j = 0U; j < pdev->tclasslist[i].NumIf; j++)
{
/* Check if requested Interface matches the current class interface */
if (pdev->tclasslist[i].Ifs[j] == index)
{
if (pdev->pClass[i]->Setup != NULL)
{
return (uint8_t)i;
}
}
}
}
}
return 0xFFU;
#else
UNUSED(pdev);
UNUSED(index);
return 0x00U;
#endif /* USE_USBD_COMPOSITE */
}
/**
* @brief USBD_CoreFindEP
* return the class index relative to the selected endpoint
* @param pdev: device instance
* @param index : selected endpoint number
* @retval index of the class using the selected endpoint number. 0xFF if no class found.
*/
uint8_t USBD_CoreFindEP(USBD_HandleTypeDef *pdev, uint8_t index)
{
#ifdef USE_USBD_COMPOSITE
/* Parse the table of classes in use */
for (uint32_t i = 0U; i < USBD_MAX_SUPPORTED_CLASS; i++)
{
/* Check if current class is in use */
if ((pdev->tclasslist[i].Active) == 1U)
{
/* Parse all endpoints listed in the current class */
for (uint32_t j = 0U; j < pdev->tclasslist[i].NumEps; j++)
{
/* Check if requested endpoint matches the current class endpoint */
if (pdev->tclasslist[i].Eps[j].add == index)
{
if (pdev->pClass[i]->Setup != NULL)
{
return (uint8_t)i;
}
}
}
}
}
return 0xFFU;
#else
UNUSED(pdev);
UNUSED(index);
return 0x00U;
#endif /* USE_USBD_COMPOSITE */
}
#ifdef USE_USBD_COMPOSITE
/**
* @brief USBD_CoreGetEPAdd
* Get the endpoint address relative to a selected class
* @param pdev: device instance
* @param ep_dir: USBD_EP_IN or USBD_EP_OUT
* @param ep_type: USBD_EP_TYPE_CTRL, USBD_EP_TYPE_ISOC, USBD_EP_TYPE_BULK or USBD_EP_TYPE_INTR
* @param ClassId: The Class ID
* @retval Address of the selected endpoint or 0xFFU if no endpoint found.
*/
uint8_t USBD_CoreGetEPAdd(USBD_HandleTypeDef *pdev, uint8_t ep_dir, uint8_t ep_type, uint8_t ClassId)
{
uint8_t idx;
/* Find the EP address in the selected class table */
for (idx = 0; idx < pdev->tclasslist[ClassId].NumEps; idx++)
{
if (((pdev->tclasslist[ClassId].Eps[idx].add & USBD_EP_IN) == ep_dir) && \
(pdev->tclasslist[ClassId].Eps[idx].type == ep_type) && \
(pdev->tclasslist[ClassId].Eps[idx].is_used != 0U))
{
return (pdev->tclasslist[ClassId].Eps[idx].add);
}
}
/* If reaching this point, then no endpoint was found */
return 0xFFU;
}
#endif /* USE_USBD_COMPOSITE */
/**
* @brief USBD_GetEpDesc
* This function return the Endpoint descriptor
* @param pdev: device instance
* @param pConfDesc: pointer to Bos descriptor
* @param EpAddr: endpoint address
* @retval pointer to video endpoint descriptor
*/
void *USBD_GetEpDesc(uint8_t *pConfDesc, uint8_t EpAddr)
{
USBD_DescHeaderTypeDef *pdesc = (USBD_DescHeaderTypeDef *)(void *)pConfDesc;
USBD_ConfigDescTypeDef *desc = (USBD_ConfigDescTypeDef *)(void *)pConfDesc;
USBD_EpDescTypeDef *pEpDesc = NULL;
uint16_t ptr;
if (desc->wTotalLength > desc->bLength)
{
ptr = desc->bLength;
while (ptr < desc->wTotalLength)
{
pdesc = USBD_GetNextDesc((uint8_t *)pdesc, &ptr);
if (pdesc->bDescriptorType == USB_DESC_TYPE_ENDPOINT)
{
pEpDesc = (USBD_EpDescTypeDef *)(void *)pdesc;
if (pEpDesc->bEndpointAddress == EpAddr)
{
break;
}
else
{
pEpDesc = NULL;
}
}
}
}
return (void *)pEpDesc;
}
/**
* @brief USBD_GetNextDesc
* This function return the next descriptor header
* @param buf: Buffer where the descriptor is available
* @param ptr: data pointer inside the descriptor
* @retval next header
*/
USBD_DescHeaderTypeDef *USBD_GetNextDesc(uint8_t *pbuf, uint16_t *ptr)
{
USBD_DescHeaderTypeDef *pnext = (USBD_DescHeaderTypeDef *)(void *)pbuf;
*ptr += pnext->bLength;
pnext = (USBD_DescHeaderTypeDef *)(void *)(pbuf + pnext->bLength);
return (pnext);
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
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