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Outline
Includes
#include "ux_device_descriptors.h"
Private includes
Private typedef
Private define
Private macro
Private variables
USBD_Device_FS
USBD_Device_HS
UserClassInstance
DevFrameWorkDesc_FS
DevFrameWorkDesc_HS
pDevFrameWorkDesc_FS
pDevFrameWorkDesc_HS
USBD_string_framework
USBD_language_id_framework
Private function prototypes
Private user code
USBD_Get_Device_Framework_Speed(uint8_t, ULONG *)
USBD_Get_String_Framework(ULONG *)
USBD_Get_Language_Id_Framework(ULONG *)
USBD_Desc_GetString(uint8_t *, uint8_t *, uint16_t *)
USBD_Desc_GetLen(uint8_t *)
USBD_Device_Framework_Builder(USBD_DevClassHandleTypeDef *, uint8_t *, uint8_t *, uint8_t)
USBD_FrameWork_AddClass(USBD_DevClassHandleTypeDef *, USBD_CompositeClassTypeDef, uint8_t, uint8_t, uint8_t *)
USBD_FrameWork_AddToConfDesc(USBD_DevClassHandleTypeDef *, uint8_t, uint8_t *)
USBD_FrameWork_FindFreeIFNbr(USBD_DevClassHandleTypeDef *)
USBD_FrameWork_AddConfDesc(uint32_t, uint32_t *)
USBD_FrameWork_AssignEp(USBD_DevClassHandleTypeDef *, uint8_t, uint8_t, uint32_t)
USBD_FrameWork_CDCECMDesc(USBD_DevClassHandleTypeDef *, uint32_t, uint32_t *)
Files
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CodeScopeSTM32 Libraries and SamplesUx_Device_CDC_ECMUSBX/App/ux_device_descriptors.c
 
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/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file ux_device_descriptors.c * @author MCD Application Team * @brief USBX Device descriptor header file ****************************************************************************** * @attention * * Copyright (c) 2021 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. * ****************************************************************************** *//* ... */ /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "ux_device_descriptors.h" Includes /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ /* USER CODE END Includes */ Private includes /* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN PTD */ /* USER CODE END PTD */ Private typedef /* Private define ------------------------------------------------------------*/ /* USER CODE BEGIN PD */ /* USER CODE END PD */ Private define /* Private macro -------------------------------------------------------------*/ /* USER CODE BEGIN PM */ /* USER CODE END PM */ Private macro /* Private variables ---------------------------------------------------------*/ USBD_DevClassHandleTypeDef USBD_Device_FS, USBD_Device_HS; uint8_t UserClassInstance[USBD_MAX_CLASS_INTERFACES] = { CLASS_TYPE_CDC_ECM, ...}; /* The generic device descriptor buffer that will be filled by builder Size of the buffer is the maximum possible device FS descriptor size. *//* ... */ #if defined ( __ICCARM__ ) /* IAR Compiler */ #pragma data_alignment=4 #endif /* defined ( __ICCARM__ ) */ __ALIGN_BEGIN static uint8_t DevFrameWorkDesc_FS[USBD_FRAMEWORK_MAX_DESC_SZ] __ALIGN_END = {0}; /* The generic device descriptor buffer that will be filled by builder Size of the buffer is the maximum possible device HS descriptor size. *//* ... */ #if defined ( __ICCARM__ ) /* IAR Compiler */ #pragma data_alignment=4 #endif /* defined ( __ICCARM__ ) */ __ALIGN_BEGIN static uint8_t DevFrameWorkDesc_HS[USBD_FRAMEWORK_MAX_DESC_SZ] __ALIGN_END = {0}; static uint8_t *pDevFrameWorkDesc_FS = DevFrameWorkDesc_FS; static uint8_t *pDevFrameWorkDesc_HS = DevFrameWorkDesc_HS; /* USER CODE BEGIN PV0 */ /* USER CODE END PV0 */ /* String Device Framework : Byte 0 and 1 : Word containing the language ID : 0x0904 for US Byte 2 : Byte containing the index of the descriptor Byte 3 : Byte containing the length of the descriptor string *//* ... */ #if defined ( __ICCARM__ ) /* IAR Compiler */ #pragma data_alignment=4 #endif /* defined ( __ICCARM__ ) */ __ALIGN_BEGIN UCHAR USBD_string_framework[USBD_STRING_FRAMEWORK_MAX_LENGTH] __ALIGN_END = {0}; /* Multiple languages are supported on the device, to add a language besides English, the Unicode language code must be appended to the language_id_framework array and the length adjusted accordingly. *//* ... */ #if defined ( __ICCARM__ ) /* IAR Compiler */ #pragma data_alignment=4 #endif /* defined ( __ICCARM__ ) */ UCHAR USBD_language_id_framework[LANGUAGE_ID_MAX_LENGTH] = {0}; /* USER CODE BEGIN PV2 */ /* USER CODE END PV2 */ Private variables /* Private function prototypes -----------------------------------------------*/ static void USBD_Desc_GetString(uint8_t *desc, uint8_t *Buffer, uint16_t *len); static uint8_t USBD_Desc_GetLen(uint8_t *buf); static uint8_t *USBD_Device_Framework_Builder(USBD_DevClassHandleTypeDef *pdev, uint8_t *pDevFrameWorkDesc, uint8_t *UserClassInstance, uint8_t Speed); static uint8_t USBD_FrameWork_AddToConfDesc(USBD_DevClassHandleTypeDef *pdev, uint8_t Speed, uint8_t *pCmpstConfDesc); static uint8_t USBD_FrameWork_AddClass(USBD_DevClassHandleTypeDef *pdev, USBD_CompositeClassTypeDef class, uint8_t cfgidx, uint8_t Speed, uint8_t *pCmpstConfDesc); static uint8_t USBD_FrameWork_FindFreeIFNbr(USBD_DevClassHandleTypeDef *pdev); static void USBD_FrameWork_AddConfDesc(uint32_t Conf, uint32_t *pSze); static void USBD_FrameWork_AssignEp(USBD_DevClassHandleTypeDef *pdev, uint8_t Add, uint8_t Type, uint32_t Sze); #if USBD_CDC_ECM_CLASS_ACTIVATED == 1U static void USBD_FrameWork_CDCECMDesc(USBD_DevClassHandleTypeDef *pdev, uint32_t pConf, uint32_t *Sze);/* ... */ #endif /* USBD_CDC_ECM_CLASS_ACTIVATED == 1U */ /* USER CODE BEGIN PFP */ /* USER CODE END PFP */ Private function prototypes /* Private user code ---------------------------------------------------------*/ /* USER CODE BEGIN 0 */ /* USER CODE END 0 */ /** * @brief USBD_Get_Device_Framework_Speed * Return the device speed descriptor * @param Speed : HIGH or FULL SPEED flag * @param length : length of HIGH or FULL SPEED array * @retval Pointer to descriptor buffer *//* ... */ uint8_t *USBD_Get_Device_Framework_Speed(uint8_t Speed, ULONG *Length) { uint8_t *pFrameWork = NULL; /* USER CODE BEGIN Device_Framework0 */ /* USER TAG BEGIN Device_Framework0 */ if (USBD_FULL_SPEED == Speed) { USBD_Device_Framework_Builder(&USBD_Device_FS, pDevFrameWorkDesc_FS, UserClassInstance, Speed); /* Get the length of USBD_device_framework_full_speed */ *Length = (ULONG)(USBD_Device_FS.CurrDevDescSz + USBD_Device_FS.CurrConfDescSz); pFrameWork = pDevFrameWorkDesc_FS; }if (USBD_FULL_SPEED == Speed) { ... } else { USBD_Device_Framework_Builder(&USBD_Device_HS, pDevFrameWorkDesc_HS, UserClassInstance, Speed); /* Get the length of USBD_device_framework_high_speed */ *Length = (ULONG)(USBD_Device_HS.CurrDevDescSz + USBD_Device_HS.CurrConfDescSz); pFrameWork = pDevFrameWorkDesc_HS; }else { ... } /* USER CODE Device_Framework1 */ /* USER CODE Device_Framework1 */ return pFrameWork; }{ ... } /** * @brief USBD_Get_String_Framework * Return the language_id_framework * @param Length : Length of String_Framework * @retval Pointer to language_id_framework buffer *//* ... */ uint8_t *USBD_Get_String_Framework(ULONG *Length) { uint16_t len = 0U; uint8_t count = 0U; /* USER CODE String_Framework0 */ /* USER CODE String_Framework0 */ /* Set the Manufacturer language Id and index in USBD_string_framework */ USBD_string_framework[count++] = USBD_LANGID_STRING & 0xFF; USBD_string_framework[count++] = USBD_LANGID_STRING >> 8; USBD_string_framework[count++] = USBD_IDX_MFC_STR; /* Set the Manufacturer string in string_framework */ USBD_Desc_GetString((uint8_t *)USBD_MANUFACTURER_STRING, USBD_string_framework + count, &len); /* Set the Product language Id and index in USBD_string_framework */ count += len + 1; USBD_string_framework[count++] = USBD_LANGID_STRING & 0xFF; USBD_string_framework[count++] = USBD_LANGID_STRING >> 8; USBD_string_framework[count++] = USBD_IDX_PRODUCT_STR; /* Set the Product string in USBD_string_framework */ USBD_Desc_GetString((uint8_t *)USBD_PRODUCT_STRING, USBD_string_framework + count, &len); /* Set Serial language Id and index in string_framework */ count += len + 1; USBD_string_framework[count++] = USBD_LANGID_STRING & 0xFF; USBD_string_framework[count++] = USBD_LANGID_STRING >> 8; USBD_string_framework[count++] = USBD_IDX_SERIAL_STR; /* Set the Serial number in USBD_string_framework */ USBD_Desc_GetString((uint8_t *)USBD_SERIAL_NUMBER, USBD_string_framework + count, &len); #if USBD_CDC_ECM_CLASS_ACTIVATED /* Set MAC_STRING_INDEX and MAC_STRING in string_framework */ count += len + 1; USBD_string_framework[count++] = USBD_LANGID_STRING & 0xFF; USBD_string_framework[count++] = USBD_LANGID_STRING >> 8; USBD_string_framework[count++] = CDC_ECM_MAC_STRING_INDEX; /* Set the Mac address in USBD_string_framework */ USBD_Desc_GetString((uint8_t *)CDC_ECM_MAC_STR_DESC, USBD_string_framework + count, &len); /* ... */ #endif /* USBD_CDC_ECM_CLASS_ACTIVATED */ /* USER CODE String_Framework1 */ /* USER CODE String_Framework1 */ /* Get the length of USBD_string_framework */ *Length = strlen((const char *)USBD_string_framework); return USBD_string_framework; }{ ... } /** * @brief USBD_Get_Language_Id_Framework * Return the language_id_framework * @param Length : Length of Language_Id_Framework * @retval Pointer to language_id_framework buffer *//* ... */ uint8_t *USBD_Get_Language_Id_Framework(ULONG *Length) { uint8_t count = 0U; /* Set the language Id in USBD_language_id_framework */ USBD_language_id_framework[count++] = USBD_LANGID_STRING & 0xFF; USBD_language_id_framework[count++] = USBD_LANGID_STRING >> 8; /* Get the length of USBD_language_id_framework */ *Length = strlen((const char *)USBD_language_id_framework); return USBD_language_id_framework; }{ ... } /** * @brief USBD_Desc_GetString * Convert ASCII string into Unicode one * @param desc : descriptor buffer * @param Unicode : Formatted string buffer (Unicode) * @param len : descriptor length * @retval None *//* ... */ static void USBD_Desc_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_Desc_GetLen(pdesc); unicode[idx++] = *(uint8_t *)len; while (*pdesc != (uint8_t)'\0') { unicode[idx++] = *pdesc; pdesc++; }while (*pdesc != (uint8_t)'\0') { ... } }{ ... } /** * @brief USBD_Desc_GetLen * return the string length * @param buf : pointer to the ASCII string buffer * @retval string length *//* ... */ static uint8_t USBD_Desc_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; }{ ... } /** * @brief USBD_Device_Framework_Builder * Device Framework builder * @param pdev: device instance * @param pDevFrameWorkDesc: Pointer to the device framework descriptor * @param UserClassInstance: type of the class to be added * @param Speed: Speed parameter HS or FS * @retval status *//* ... */ static uint8_t *USBD_Device_Framework_Builder(USBD_DevClassHandleTypeDef *pdev, uint8_t *pDevFrameWorkDesc, uint8_t *UserClassInstance, uint8_t Speed) { static USBD_DeviceDescTypedef *pDevDesc; static USBD_DevQualiDescTypedef *pDevQualDesc; uint8_t Idx_Instance = 0U; uint8_t NumberClass = 1U; /* Set Dev and conf descriptors size to 0 */ pdev->CurrConfDescSz = 0U; pdev->CurrDevDescSz = 0U; /* Set the pointer to the device descriptor area*/ pDevDesc = (USBD_DeviceDescTypedef *)pDevFrameWorkDesc; /* Start building the generic device descriptor common part */ pDevDesc->bLength = (uint8_t)sizeof(USBD_DeviceDescTypedef); pDevDesc->bDescriptorType = UX_DEVICE_DESCRIPTOR_ITEM; pDevDesc->bcdUSB = USB_BCDUSB; pDevDesc->bDeviceClass = 0x00; pDevDesc->bDeviceSubClass = 0x00; pDevDesc->bDeviceProtocol = 0x00; pDevDesc->bMaxPacketSize = USBD_MAX_EP0_SIZE; pDevDesc->idVendor = USBD_VID; pDevDesc->idProduct = USBD_PID; pDevDesc->bcdDevice = 0x0200; pDevDesc->iManufacturer = USBD_IDX_MFC_STR; pDevDesc->iProduct = USBD_IDX_PRODUCT_STR; pDevDesc->iSerialNumber = USBD_IDX_SERIAL_STR; pDevDesc->bNumConfigurations = USBD_MAX_NUM_CONFIGURATION; pdev->CurrDevDescSz += (uint32_t)sizeof(USBD_DeviceDescTypedef); /* Check if USBx is in high speed mode to add qualifier descriptor */ if (Speed == USBD_HIGH_SPEED) { pDevQualDesc = (USBD_DevQualiDescTypedef *)(pDevFrameWorkDesc + pdev->CurrDevDescSz); pDevQualDesc->bLength = (uint8_t)sizeof(USBD_DevQualiDescTypedef); pDevQualDesc->bDescriptorType = UX_DEVICE_QUALIFIER_DESCRIPTOR_ITEM; pDevQualDesc->bcdDevice = 0x0200; pDevQualDesc->Class = 0x00; pDevQualDesc->SubClass = 0x00; pDevQualDesc->Protocol = 0x00; pDevQualDesc->bMaxPacketSize = 0x40; pDevQualDesc->bNumConfigurations = 0x01; pDevQualDesc->bReserved = 0x00; pdev->CurrDevDescSz += (uint32_t)sizeof(USBD_DevQualiDescTypedef); }if (Speed == USBD_HIGH_SPEED) { ... } /* Build the device framework */ while (Idx_Instance < USBD_MAX_SUPPORTED_CLASS) { if ((pdev->classId < USBD_MAX_SUPPORTED_CLASS) && (pdev->NumClasses < USBD_MAX_SUPPORTED_CLASS)) { /* Call the composite class builder */ (void)USBD_FrameWork_AddClass(pdev, (USBD_CompositeClassTypeDef)UserClassInstance[Idx_Instance], 0, Speed, (pDevFrameWorkDesc + pdev->CurrDevDescSz)); /* Increment the ClassId for the next occurrence */ pdev->classId ++; pdev->NumClasses ++; }if ((pdev->classId < USBD_MAX_SUPPORTED_CLASS) && (pdev->NumClasses < USBD_MAX_SUPPORTED_CLASS)) { ... } Idx_Instance++; /* Count the number of Classes different of CLASS_TYPE_NONE */ if (UserClassInstance[Idx_Instance] != CLASS_TYPE_NONE) { NumberClass++; }if (UserClassInstance[Idx_Instance] != CLASS_TYPE_NONE) { ... } }while (Idx_Instance < USBD_MAX_SUPPORTED_CLASS) { ... } /* Check if there is a composite class and update device class */ if (NumberClass > 1) { pDevDesc->bDeviceClass = 0xEF; pDevDesc->bDeviceSubClass = 0x02; pDevDesc->bDeviceProtocol = 0x01; }if (NumberClass > 1) { ... } else { /* Check if the CDC ACM class is set and update device class */ if (UserClassInstance[0] == CLASS_TYPE_CDC_ACM) { pDevDesc->bDeviceClass = 0x02; pDevDesc->bDeviceSubClass = 0x02; pDevDesc->bDeviceProtocol = 0x00; }if (UserClassInstance[0] == CLASS_TYPE_CDC_ACM) { ... } }else { ... } return pDevFrameWorkDesc; }{ ... } /** * @brief USBD_FrameWork_AddClass * Register a class in the class builder * @param pdev: device instance * @param pclass: pointer to the class structure to be added * @param class: type of the class to be added (from USBD_CompositeClassTypeDef) * @param cfgidx: configuration index * @retval status *//* ... */ uint8_t USBD_FrameWork_AddClass(USBD_DevClassHandleTypeDef *pdev, USBD_CompositeClassTypeDef class, uint8_t cfgidx, uint8_t Speed, uint8_t *pCmpstConfDesc) { if ((pdev->classId < USBD_MAX_SUPPORTED_CLASS) && (pdev->tclasslist[pdev->classId].Active == 0U)) { /* Store the class parameters in the global tab */ pdev->tclasslist[pdev->classId].ClassId = pdev->classId; pdev->tclasslist[pdev->classId].Active = 1U; pdev->tclasslist[pdev->classId].ClassType = class; /* Call configuration descriptor builder and endpoint configuration builder */ if (USBD_FrameWork_AddToConfDesc(pdev, Speed, pCmpstConfDesc) != UX_SUCCESS) { return UX_ERROR; }if (USBD_FrameWork_AddToConfDesc(pdev, Speed, pCmpstConfDesc) != UX_SUCCESS) { ... } }if ((pdev->classId < USBD_MAX_SUPPORTED_CLASS) && (pdev->tclasslist[pdev->classId].Active == 0U)) { ... } UNUSED(cfgidx); return UX_SUCCESS; }{ ... } /** * @brief USBD_FrameWork_AddToConfDesc * Add a new class to the configuration descriptor * @param pdev: device instance * @retval status *//* ... */ uint8_t USBD_FrameWork_AddToConfDesc(USBD_DevClassHandleTypeDef *pdev, uint8_t Speed, uint8_t *pCmpstConfDesc) { uint8_t interface = 0U; /* USER CODE FrameWork_AddToConfDesc_0 */ /* USER CODE FrameWork_AddToConfDesc_0 */ /* The USB drivers do not set the speed value, so set it here before starting */ pdev->Speed = Speed; /* start building the config descriptor common part */ if (pdev->classId == 0U) { /* Add configuration and IAD descriptors */ USBD_FrameWork_AddConfDesc((uint32_t)pCmpstConfDesc, &pdev->CurrConfDescSz); }if (pdev->classId == 0U) { ... } switch (pdev->tclasslist[pdev->classId].ClassType) { #if USBD_CDC_ECM_CLASS_ACTIVATED == 1 case CLASS_TYPE_CDC_ECM: /* Find the first available interface slot and Assign number of interfaces */ interface = USBD_FrameWork_FindFreeIFNbr(pdev); pdev->tclasslist[pdev->classId].NumIf = 2U; pdev->tclasslist[pdev->classId].Ifs[0] = interface; pdev->tclasslist[pdev->classId].Ifs[1] = (uint8_t)(interface + 1U); /* Assign endpoint numbers */ pdev->tclasslist[pdev->classId].NumEps = 3U; /* EP1_IN, EP1_OUT,CMD_EP2 */ /* Check the current speed to assign endpoints */ if (Speed == USBD_HIGH_SPEED) { /* Assign OUT Endpoint */ USBD_FrameWork_AssignEp(pdev, USBD_CDCECM_EPOUT_ADDR, USBD_EP_TYPE_BULK, USBD_CDCECM_EPOUT_HS_MPS); /* Assign IN Endpoint */ USBD_FrameWork_AssignEp(pdev, USBD_CDCECM_EPIN_ADDR, USBD_EP_TYPE_BULK, USBD_CDCECM_EPIN_HS_MPS); /* Assign CMD Endpoint */ USBD_FrameWork_AssignEp(pdev, USBD_CDCECM_EPINCMD_ADDR, USBD_EP_TYPE_INTR, USBD_CDCECM_EPINCMD_HS_MPS); }if (Speed == USBD_HIGH_SPEED) { ... } else { /* Assign OUT Endpoint */ USBD_FrameWork_AssignEp(pdev, USBD_CDCECM_EPOUT_ADDR, USBD_EP_TYPE_BULK, USBD_CDCECM_EPOUT_FS_MPS); /* Assign IN Endpoint */ USBD_FrameWork_AssignEp(pdev, USBD_CDCECM_EPIN_ADDR, USBD_EP_TYPE_BULK, USBD_CDCECM_EPIN_FS_MPS); /* Assign CMD Endpoint */ USBD_FrameWork_AssignEp(pdev, USBD_CDCECM_EPINCMD_ADDR, USBD_EP_TYPE_INTR, USBD_CDCECM_EPINCMD_FS_MPS); }else { ... } /* Configure and Append the Descriptor */ USBD_FrameWork_CDCECMDesc(pdev, (uint32_t)pCmpstConfDesc, &pdev->CurrConfDescSz); break;/* ... */ #endif /* USBD_CDC_ECM_CLASS_ACTIVATED */ /* USER CODE FrameWork_AddToConfDesc_1 */ /* USER CODE FrameWork_AddToConfDesc_1 */ case CLASS_TYPE_CDC_ECM: default: /* USER CODE FrameWork_AddToConfDesc_2 */ /* USER CODE FrameWork_AddToConfDesc_2 */ break;default }switch (pdev->tclasslist[pdev->classId].ClassType) { ... } return UX_SUCCESS; }{ ... } /** * @brief USBD_FrameWork_FindFreeIFNbr * Find the first interface available slot * @param pdev: device instance * @retval The interface number to be used *//* ... */ static uint8_t USBD_FrameWork_FindFreeIFNbr(USBD_DevClassHandleTypeDef *pdev) { uint32_t idx = 0U; /* Unroll all already activated classes */ for (uint32_t i = 0U; i < pdev->NumClasses; i++) { /* Unroll each class interfaces */ for (uint32_t j = 0U; j < pdev->tclasslist[i].NumIf; j++) { /* Increment the interface counter index */ idx++; }for (uint32_t j = 0U; j < pdev->tclasslist[i].NumIf; j++) { ... } }for (uint32_t i = 0U; i < pdev->NumClasses; i++) { ... } /* Return the first available interface slot */ return (uint8_t)idx; }{ ... } /** * @brief USBD_FrameWork_AddToConfDesc * Add a new class to the configuration descriptor * @param pdev: device instance * @retval none *//* ... */ static void USBD_FrameWork_AddConfDesc(uint32_t Conf, uint32_t *pSze) { /* Intermediate variable to comply with MISRA-C Rule 11.3 */ USBD_ConfigDescTypedef *ptr = (USBD_ConfigDescTypedef *)Conf; ptr->bLength = (uint8_t)sizeof(USBD_ConfigDescTypedef); ptr->bDescriptorType = USB_DESC_TYPE_CONFIGURATION; ptr->wDescriptorLength = 0U; ptr->bNumInterfaces = 0U; ptr->bConfigurationValue = 1U; ptr->iConfiguration = USBD_CONFIG_STR_DESC_IDX; ptr->bmAttributes = USBD_CONFIG_BMATTRIBUTES; ptr->bMaxPower = USBD_CONFIG_MAXPOWER; *pSze += sizeof(USBD_ConfigDescTypedef); }{ ... } /** * @brief USBD_FrameWork_AssignEp * Assign and endpoint * @param pdev: device instance * @param Add: Endpoint address * @param Type: Endpoint type * @param Sze: Endpoint max packet size * @retval none *//* ... */ static void USBD_FrameWork_AssignEp(USBD_DevClassHandleTypeDef *pdev, uint8_t Add, uint8_t Type, uint32_t Sze) { uint32_t idx = 0U; /* Find the first available endpoint slot */ while (((idx < (pdev->tclasslist[pdev->classId]).NumEps) && \ ((pdev->tclasslist[pdev->classId].Eps[idx].is_used) != 0U))) { /* Increment the index */ idx++; }while (((idx < (pdev->tclasslist[pdev->classId]).NumEps) && \ ((pdev->tclasslist[pdev->classId].Eps[idx].is_used) != 0U))) { ... } /* Configure the endpoint */ pdev->tclasslist[pdev->classId].Eps[idx].add = Add; pdev->tclasslist[pdev->classId].Eps[idx].type = Type; pdev->tclasslist[pdev->classId].Eps[idx].size = (uint16_t) Sze; pdev->tclasslist[pdev->classId].Eps[idx].is_used = 1U; }{ ... } #if USBD_CDC_ECM_CLASS_ACTIVATED /** * @brief USBD_FrameWork_CDCECMDesc * Configure and Append the CDC_ECM Descriptor * @param pdev: device instance * @param pConf: Configuration descriptor pointer * @param Sze: pointer to the current configuration descriptor size * @retval None *//* ... */ static void USBD_FrameWork_CDCECMDesc(USBD_DevClassHandleTypeDef *pdev, uint32_t pConf, uint32_t *Sze) { static USBD_IfDescTypedef *pIfDesc; static USBD_EpDescTypedef *pEpDesc; static USBD_ECMFuncDescTypedef *pFuncDesc; static USBD_CDCHeaderFuncDescTypedef *pHeadDesc; static USBD_CDCUnionFuncDescTypedef *pUnionDesc; #if USBD_COMPOSITE_USE_IAD == 1 static USBD_IadDescTypedef *pIadDesc; #endif /* USBD_COMPOSITE_USE_IAD == 1 */ #if USBD_COMPOSITE_USE_IAD == 1 /* IAD descriptor */ pIadDesc = ((USBD_IadDescTypedef *)(pConf + *Sze)); pIadDesc->bLength = (uint8_t)sizeof(USBD_IadDescTypedef); pIadDesc->bDescriptorType = USB_DESC_TYPE_IAD; pIadDesc->bFirstInterface = pdev->tclasslist[pdev->classId].Ifs[0]; pIadDesc->bInterfaceCount = 2; /* 2 interfaces */ pIadDesc->bFunctionClass = 0x02; pIadDesc->bFunctionSubClass = 0x06; pIadDesc->bFunctionProtocol = 0x00; pIadDesc->iFunction = 0; /* String Index */ *Sze += (uint32_t)sizeof(USBD_IadDescTypedef);/* ... */ #endif /* USBD_COMPOSITE_USE_IAD == 1 */ /* Append ECM Interface descriptor */ __USBD_FRAMEWORK_SET_IF(pdev->tclasslist[pdev->classId].Ifs[0], 0U, 1U, 0x02U, 0x06U, 0U, 0U); /* Append ECM header functional descriptor to Configuration descriptor */ pHeadDesc = ((USBD_CDCHeaderFuncDescTypedef *)(pConf + *Sze)); pHeadDesc->bLength = (uint8_t)sizeof(USBD_CDCHeaderFuncDescTypedef); pHeadDesc->bDescriptorType = 0x24; pHeadDesc->bDescriptorSubtype = 0x00; pHeadDesc->bcdCDC = USBD_DESC_ECM_BCD; *Sze += (uint32_t)sizeof(USBD_CDCHeaderFuncDescTypedef); /* Append ECM functional descriptor to Configuration descriptor */ pFuncDesc = ((USBD_ECMFuncDescTypedef *)(pConf + *Sze)); pFuncDesc->bFunctionLength = (uint8_t)sizeof(USBD_ECMFuncDescTypedef); pFuncDesc->bDescriptorType = 0x24; pFuncDesc->bDescriptorSubType = USBD_DESC_SUBTYPE_ACM; pFuncDesc->iMacAddress = CDC_ECM_MAC_STRING_INDEX; pFuncDesc->bEthernetStatistics3 = CDC_ECM_ETH_STATS_BYTE3; pFuncDesc->bEthernetStatistics2 = CDC_ECM_ETH_STATS_BYTE2; pFuncDesc->bEthernetStatistics1 = CDC_ECM_ETH_STATS_BYTE1; pFuncDesc->bEthernetStatistics0 = CDC_ECM_ETH_STATS_BYTE0; pFuncDesc->wMaxSegmentSize = CDC_ECM_ETH_MAX_SEGSZE; pFuncDesc->bNumberMCFiltes = CDC_ECM_ETH_NBR_MACFILTERS; pFuncDesc->bNumberPowerFiltes = CDC_ECM_ETH_NBR_PWRFILTERS; *Sze += (uint32_t)sizeof(USBD_ECMFuncDescTypedef); /* Append ECM Union functional descriptor to Configuration descriptor */ pUnionDesc = ((USBD_CDCUnionFuncDescTypedef *)((uint32_t)pConf + *Sze)); pUnionDesc->bLength = (uint8_t)sizeof(USBD_CDCUnionFuncDescTypedef); pUnionDesc->bDescriptorType = 0x24; pUnionDesc->bDescriptorSubtype = 0x06; pUnionDesc->bMasterInterface = pdev->tclasslist[pdev->classId].Ifs[0]; pUnionDesc->bSlaveInterface = pdev->tclasslist[pdev->classId].Ifs[1]; *Sze += (uint32_t)sizeof(USBD_CDCUnionFuncDescTypedef); /* Append ECM Communication IN Endpoint Descriptor to Configuration descriptor */ __USBD_FRAMEWORK_SET_EP(pdev->tclasslist[pdev->classId].Eps[2].add, USBD_EP_TYPE_INTR, (uint16_t)pdev->tclasslist[pdev->classId].Eps[2].size, USBD_CDCECM_EPINCMD_HS_BINTERVAL, USBD_CDCECM_EPINCMD_FS_BINTERVAL); /* Append ECM Data class interface descriptor to Configuration descriptor */ __USBD_FRAMEWORK_SET_IF(pdev->tclasslist[pdev->classId].Ifs[1], 0U, 2U, 0x0AU, 0U, 0U, 0U); /* Append ECM OUT Endpoint Descriptor to Configuration descriptor */ __USBD_FRAMEWORK_SET_EP((pdev->tclasslist[pdev->classId].Eps[0].add), (USBD_EP_TYPE_BULK), (uint16_t)(pdev->tclasslist[pdev->classId].Eps[0].size), USBD_CDCECM_EPINCMD_HS_BINTERVAL, USBD_CDCECM_EPINCMD_FS_BINTERVAL); /* Append ECM IN Endpoint Descriptor to Configuration descriptor */ __USBD_FRAMEWORK_SET_EP((pdev->tclasslist[pdev->classId].Eps[1].add), (USBD_EP_TYPE_BULK), (uint16_t)(pdev->tclasslist[pdev->classId].Eps[1].size), USBD_CDCECM_EPINCMD_HS_BINTERVAL, USBD_CDCECM_EPINCMD_FS_BINTERVAL); /* Update Config Descriptor and IAD descriptor */ ((USBD_ConfigDescTypedef*)pConf)->bNumInterfaces += 2U; ((USBD_ConfigDescTypedef*)pConf)->wDescriptorLength = *Sze; }{ ... } #endif/* ... */ /* USBD_CDC_ECM_CLASS_ACTIVATED */ /* USER CODE BEGIN 1 */ Private user code /* USER CODE END 1 */