/* * Copyright (c) 2015 - 2016, Freescale Semiconductor, Inc. * Copyright 2016 NXP * All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #include "usb_device_config.h" #include "usb.h" #include "usb_device.h" #include "usb_device_class.h" #include "usb_device_cdc_acm.h" #include "usb_device_descriptor.h" /******************************************************************************* * Variables ******************************************************************************/ /* Define endpoint for communication class */ usb_device_endpoint_struct_t g_UsbDeviceCdcVcomCicEndpoints[USB_CDC_VCOM_ENDPOINT_CIC_COUNT] = { { USB_CDC_VCOM_INTERRUPT_IN_ENDPOINT | (USB_IN << 7U), USB_ENDPOINT_INTERRUPT, FS_CDC_VCOM_INTERRUPT_IN_PACKET_SIZE, FS_CDC_VCOM_INTERRUPT_IN_INTERVAL, }, }; /* Define endpoint for data class */ usb_device_endpoint_struct_t g_UsbDeviceCdcVcomDicEndpoints[USB_CDC_VCOM_ENDPOINT_DIC_COUNT] = { { USB_CDC_VCOM_BULK_IN_ENDPOINT | (USB_IN << 7U), USB_ENDPOINT_BULK, FS_CDC_VCOM_BULK_IN_PACKET_SIZE, 0U, }, { USB_CDC_VCOM_BULK_OUT_ENDPOINT | (USB_OUT << 7U), USB_ENDPOINT_BULK, FS_CDC_VCOM_BULK_OUT_PACKET_SIZE, 0U, }}; /* Define interface for communication class */ usb_device_interface_struct_t g_UsbDeviceCdcVcomCommunicationInterface[] = {{0, { USB_CDC_VCOM_ENDPOINT_CIC_COUNT, g_UsbDeviceCdcVcomCicEndpoints, }, NULL}}; /* Define interface for data class */ usb_device_interface_struct_t g_UsbDeviceCdcVcomDataInterface[] = {{0, { USB_CDC_VCOM_ENDPOINT_DIC_COUNT, g_UsbDeviceCdcVcomDicEndpoints, }, NULL}}; /* Define interfaces for virtual com */ usb_device_interfaces_struct_t g_UsbDeviceCdcVcomInterfaces[USB_CDC_VCOM_INTERFACE_COUNT] = { {USB_CDC_VCOM_CIC_CLASS, USB_CDC_VCOM_CIC_SUBCLASS, USB_CDC_VCOM_CIC_PROTOCOL, USB_CDC_VCOM_COMM_INTERFACE_INDEX, g_UsbDeviceCdcVcomCommunicationInterface, sizeof(g_UsbDeviceCdcVcomCommunicationInterface) / sizeof(usb_device_interface_struct_t)}, {USB_CDC_VCOM_DIC_CLASS, USB_CDC_VCOM_DIC_SUBCLASS, USB_CDC_VCOM_DIC_PROTOCOL, USB_CDC_VCOM_DATA_INTERFACE_INDEX, g_UsbDeviceCdcVcomDataInterface, sizeof(g_UsbDeviceCdcVcomDataInterface) / sizeof(usb_device_interface_struct_t)}, }; /* Define configurations for virtual com */ usb_device_interface_list_t g_UsbDeviceCdcVcomInterfaceLIST_[USB_DEVICE_CONFIGURATION_COUNT] = { { USB_CDC_VCOM_INTERFACE_COUNT, g_UsbDeviceCdcVcomInterfaces, }, }; /* Define class information for virtual com */ usb_device_class_struct_t g_UsbDeviceCdcVcomConfig = { g_UsbDeviceCdcVcomInterfaceLIST_, kUSB_DeviceClassTypeCdc, USB_DEVICE_CONFIGURATION_COUNT, }; /* Define device descriptor */ USB_DMA_INIT_DATA_ALIGN(USB_DATA_ALIGN_SIZE) uint8_t g_UsbDeviceDescriptor[] = { /* Size of this descriptor in bytes */ USB_DESCRIPTOR_LENGTH_DEVICE, /* DEVICE Descriptor Type */ USB_DESCRIPTOR_TYPE_DEVICE, /* USB Specification Release Number in Binary-Coded Decimal (i.e., 2.10 is 210H). */ USB_SHORT_GET_LOW(USB_DEVICE_SPECIFIC_BCD_VERSION), USB_SHORT_GET_HIGH(USB_DEVICE_SPECIFIC_BCD_VERSION), /* Class code (assigned by the USB-IF). */ USB_DEVICE_CLASS, /* Subclass code (assigned by the USB-IF). */ USB_DEVICE_SUBCLASS, /* Protocol code (assigned by the USB-IF). */ USB_DEVICE_PROTOCOL, /* Maximum packet size for endpoint zero (only 8, 16, 32, or 64 are valid) */ USB_CONTROL_MAX_PACKET_SIZE, /* Vendor ID (assigned by the USB-IF) */ 0xC9U, 0x1FU, /* Product ID (assigned by the manufacturer) */ 0x94, 0x00, /* Device release number in binary-coded decimal */ USB_SHORT_GET_LOW(USB_DEVICE_DEMO_BCD_VERSION), USB_SHORT_GET_HIGH(USB_DEVICE_DEMO_BCD_VERSION), /* Index of string descriptor describing manufacturer */ 0x01, /* Index of string descriptor describing product */ 0x02, /* Index of string descriptor describing the device's serial number */ 0x00, /* Number of possible configurations */ USB_DEVICE_CONFIGURATION_COUNT, }; /* Define configuration descriptor */ USB_DMA_INIT_DATA_ALIGN(USB_DATA_ALIGN_SIZE) uint8_t g_UsbDeviceConfigurationDescriptor[] = { /* Size of this descriptor in bytes */ USB_DESCRIPTOR_LENGTH_CONFIGURE, /* CONFIGURATION Descriptor Type */ USB_DESCRIPTOR_TYPE_CONFIGURE, /* Total length of data returned for this configuration. */ USB_SHORT_GET_LOW(USB_DESCRIPTOR_LENGTH_CONFIGURE + USB_DESCRIPTOR_LENGTH_INTERFACE + USB_DESCRIPTOR_LENGTH_CDC_HEADER_FUNC + USB_DESCRIPTOR_LENGTH_CDC_CALL_MANAG + USB_DESCRIPTOR_LENGTH_CDC_ABSTRACT + USB_DESCRIPTOR_LENGTH_CDC_UNION_FUNC + USB_DESCRIPTOR_LENGTH_ENDPOINT + USB_DESCRIPTOR_LENGTH_INTERFACE + USB_DESCRIPTOR_LENGTH_ENDPOINT + USB_DESCRIPTOR_LENGTH_ENDPOINT), USB_SHORT_GET_HIGH(USB_DESCRIPTOR_LENGTH_CONFIGURE + USB_DESCRIPTOR_LENGTH_INTERFACE + USB_DESCRIPTOR_LENGTH_CDC_HEADER_FUNC + USB_DESCRIPTOR_LENGTH_CDC_CALL_MANAG + USB_DESCRIPTOR_LENGTH_CDC_ABSTRACT + USB_DESCRIPTOR_LENGTH_CDC_UNION_FUNC + USB_DESCRIPTOR_LENGTH_ENDPOINT + USB_DESCRIPTOR_LENGTH_INTERFACE + USB_DESCRIPTOR_LENGTH_ENDPOINT + USB_DESCRIPTOR_LENGTH_ENDPOINT), /* Number of interfaces supported by this configuration */ USB_CDC_VCOM_INTERFACE_COUNT, /* Value to use as an argument to the SetConfiguration() request to select this configuration */ USB_CDC_VCOM_CONFIGURE_INDEX, /* Index of string descriptor describing this configuration */ 0, /* Configuration characteristics D7: Reserved (set to one) D6: Self-powered D5: Remote Wakeup D4...0: Reserved (reset to zero) */ (USB_DESCRIPTOR_CONFIGURE_ATTRIBUTE_D7_MASK) | (USB_DEVICE_CONFIG_SELF_POWER << USB_DESCRIPTOR_CONFIGURE_ATTRIBUTE_SELF_POWERED_SHIFT) | (USB_DEVICE_CONFIG_REMOTE_WAKEUP << USB_DESCRIPTOR_CONFIGURE_ATTRIBUTE_REMOTE_WAKEUP_SHIFT), /* Maximum power consumption of the USB * device from the bus in this specific * configuration when the device is fully * operational. Expressed in 2 mA units * (i.e., 50 = 100 mA). */ USB_DEVICE_MAX_POWER, /* Communication Interface Descriptor */ USB_DESCRIPTOR_LENGTH_INTERFACE, USB_DESCRIPTOR_TYPE_INTERFACE, USB_CDC_VCOM_COMM_INTERFACE_INDEX, 0x00, USB_CDC_VCOM_ENDPOINT_CIC_COUNT, USB_CDC_VCOM_CIC_CLASS, USB_CDC_VCOM_CIC_SUBCLASS, USB_CDC_VCOM_CIC_PROTOCOL, 0x00, /* Interface Description String Index*/ /* CDC Class-Specific descriptor */ USB_DESCRIPTOR_LENGTH_CDC_HEADER_FUNC, /* Size of this descriptor in bytes */ USB_DESCRIPTOR_TYPE_CDC_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */ USB_CDC_HEADER_FUNC_DESC, 0x10, 0x01, /* USB Class Definitions for Communications the Communication specification version 1.10 */ USB_DESCRIPTOR_LENGTH_CDC_CALL_MANAG, /* Size of this descriptor in bytes */ USB_DESCRIPTOR_TYPE_CDC_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */ USB_CDC_CALL_MANAGEMENT_FUNC_DESC, 0x01, /*Bit 0: Whether device handle call management itself 1, Bit 1: Whether device can send/receive call management information over a Data Class Interface 0 */ 0x01, /* Indicates multiplexed commands are handled via data interface */ USB_DESCRIPTOR_LENGTH_CDC_ABSTRACT, /* Size of this descriptor in bytes */ USB_DESCRIPTOR_TYPE_CDC_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */ USB_CDC_ABSTRACT_CONTROL_FUNC_DESC, 0x06, /* Bit 0: Whether device supports the request combination of Set_Comm_Feature, Clear_Comm_Feature, and Get_Comm_Feature 0, Bit 1: Whether device supports the request combination of Set_Line_Coding, Set_Control_Line_State, Get_Line_Coding, and the notification Serial_State 1, Bit ... */ USB_DESCRIPTOR_LENGTH_CDC_UNION_FUNC, /* Size of this descriptor in bytes */ USB_DESCRIPTOR_TYPE_CDC_CS_INTERFACE, /* CS_INTERFACE Descriptor Type */ USB_CDC_UNION_FUNC_DESC, 0x00, /* The interface number of the Communications or Data Class interface */ 0x01, /* Interface number of subordinate interface in the Union */ /*Notification Endpoint descriptor */ USB_DESCRIPTOR_LENGTH_ENDPOINT, USB_DESCRIPTOR_TYPE_ENDPOINT, USB_CDC_VCOM_INTERRUPT_IN_ENDPOINT | (USB_IN << 7U), USB_ENDPOINT_INTERRUPT, USB_SHORT_GET_LOW(FS_CDC_VCOM_INTERRUPT_IN_PACKET_SIZE), USB_SHORT_GET_HIGH(FS_CDC_VCOM_INTERRUPT_IN_PACKET_SIZE), FS_CDC_VCOM_INTERRUPT_IN_INTERVAL, /* Data Interface Descriptor */ USB_DESCRIPTOR_LENGTH_INTERFACE, USB_DESCRIPTOR_TYPE_INTERFACE, USB_CDC_VCOM_DATA_INTERFACE_INDEX, 0x00, USB_CDC_VCOM_ENDPOINT_DIC_COUNT, USB_CDC_VCOM_DIC_CLASS, USB_CDC_VCOM_DIC_SUBCLASS, USB_CDC_VCOM_DIC_PROTOCOL, 0x00, /* Interface Description String Index*/ /*Bulk IN Endpoint descriptor */ USB_DESCRIPTOR_LENGTH_ENDPOINT, USB_DESCRIPTOR_TYPE_ENDPOINT, USB_CDC_VCOM_BULK_IN_ENDPOINT | (USB_IN << 7U), USB_ENDPOINT_BULK, USB_SHORT_GET_LOW(FS_CDC_VCOM_BULK_IN_PACKET_SIZE), USB_SHORT_GET_HIGH(FS_CDC_VCOM_BULK_IN_PACKET_SIZE), 0x00, /* The polling interval value is every 0 Frames */ /*Bulk OUT Endpoint descriptor */ USB_DESCRIPTOR_LENGTH_ENDPOINT, USB_DESCRIPTOR_TYPE_ENDPOINT, USB_CDC_VCOM_BULK_OUT_ENDPOINT | (USB_OUT << 7U), USB_ENDPOINT_BULK, USB_SHORT_GET_LOW(FS_CDC_VCOM_BULK_OUT_PACKET_SIZE), USB_SHORT_GET_HIGH(FS_CDC_VCOM_BULK_OUT_PACKET_SIZE), 0x00, /* The polling interval value is every 0 Frames */ }; /* Define string descriptor */ USB_DMA_INIT_DATA_ALIGN(USB_DATA_ALIGN_SIZE) uint8_t g_UsbDeviceString0[] = {2U + 2U, USB_DESCRIPTOR_TYPE_STRING, 0x09, 0x04}; USB_DMA_INIT_DATA_ALIGN(USB_DATA_ALIGN_SIZE) uint8_t g_UsbDeviceString1[] = { 2U + 2U * 18U, USB_DESCRIPTOR_TYPE_STRING, (uint8_t)'N', 0x00U, (uint8_t)'X', 0x00U, (uint8_t)'P', 0x00U, (uint8_t)' ', 0x00U, (uint8_t)'S', 0x00U, (uint8_t)'E', 0x00U, (uint8_t)'M', 0x00U, (uint8_t)'I', 0x00U, (uint8_t)'C', 0x00U, (uint8_t)'O', 0x00U, (uint8_t)'N', 0x00U, (uint8_t)'D', 0x00U, (uint8_t)'U', 0x00U, (uint8_t)'C', 0x00U, (uint8_t)'T', 0x00U, (uint8_t)'O', 0x00U, (uint8_t)'R', 0x00U, (uint8_t)'S', 0x00U, }; USB_DMA_INIT_DATA_ALIGN(USB_DATA_ALIGN_SIZE) uint8_t g_UsbDeviceString2[] = { 2U + 2U * 20U, USB_DESCRIPTOR_TYPE_STRING, (uint8_t)'M', 0U, (uint8_t)'C', 0U, (uint8_t)'U', 0U, (uint8_t)' ', 0U, (uint8_t)'V', 0U, (uint8_t)'I', 0U, (uint8_t)'R', 0U, (uint8_t)'T', 0U, (uint8_t)'U', 0U, (uint8_t)'A', 0U, (uint8_t)'L', 0U, (uint8_t)' ', 0U, (uint8_t)'C', 0U, (uint8_t)'O', 0U, (uint8_t)'M', 0U, (uint8_t)' ', 0U, (uint8_t)'D', 0U, (uint8_t)'E', 0U, (uint8_t)'M', 0U, (uint8_t)'O', 0U, }; uint8_t *g_UsbDeviceStringDescriptorArray[USB_DEVICE_STRING_COUNT] = {g_UsbDeviceString0, g_UsbDeviceString1, g_UsbDeviceString2}; /* Define string descriptor size */ uint32_t g_UsbDeviceStringDescriptorLength[USB_DEVICE_STRING_COUNT] = { sizeof(g_UsbDeviceString0), sizeof(g_UsbDeviceString1), sizeof(g_UsbDeviceString2)}; usb_language_t g_UsbDeviceLanguage[USB_DEVICE_LANGUAGE_COUNT] = {{ g_UsbDeviceStringDescriptorArray, g_UsbDeviceStringDescriptorLength, (uint16_t)0x0409, }}; usb_language_list_t g_UsbDeviceLanguageList = { g_UsbDeviceString0, sizeof(g_UsbDeviceString0), g_UsbDeviceLanguage, USB_DEVICE_LANGUAGE_COUNT, }; /******************************************************************************* * Code ******************************************************************************/ /*! * @brief USB device get device descriptor function. * * This function gets the device descriptor of the USB device. * * @param handle The USB device handle. * @param deviceDescriptor The pointer to the device descriptor structure. * * @return A USB error code or kStatus_USB_Success. */ usb_status_t USB_DeviceGetDeviceDescriptor(usb_device_handle handle, usb_device_get_device_descriptor_struct_t *deviceDescriptor) { deviceDescriptor->buffer = g_UsbDeviceDescriptor; deviceDescriptor->length = USB_DESCRIPTOR_LENGTH_DEVICE; return kStatus_USB_Success; } /*! * @brief USB device get configuration descriptor function. * * This function gets the configuration descriptor of the USB device. * * @param handle The USB device handle. * @param configurationDescriptor The pointer to the configuration descriptor structure. * * @return A USB error code or kStatus_USB_Success. */ usb_status_t USB_DeviceGetConfigurationDescriptor( usb_device_handle handle, usb_device_get_configuration_descriptor_struct_t *configurationDescriptor) { if ((uint8_t)USB_CDC_VCOM_CONFIGURE_INDEX > configurationDescriptor->configuration) { configurationDescriptor->buffer = g_UsbDeviceConfigurationDescriptor; configurationDescriptor->length = USB_DESCRIPTOR_LENGTH_CONFIGURATION_ALL; return kStatus_USB_Success; } return kStatus_USB_InvalidRequest; } /*! * @brief USB device get string descriptor function. * * This function gets the string descriptor of the USB device. * * @param handle The USB device handle. * @param stringDescriptor Pointer to the string descriptor structure. * * @return A USB error code or kStatus_USB_Success. */ usb_status_t USB_DeviceGetStringDescriptor(usb_device_handle handle, usb_device_get_string_descriptor_struct_t *stringDescriptor) { if (stringDescriptor->stringIndex == 0U) { stringDescriptor->buffer = (uint8_t *)g_UsbDeviceLanguageList.languageString; stringDescriptor->length = g_UsbDeviceLanguageList.stringLength; } else { uint8_t languageId = 0U; uint8_t languageIndex = USB_DEVICE_STRING_COUNT; for (; languageId < (uint8_t)USB_DEVICE_LANGUAGE_COUNT; languageId++) { if (stringDescriptor->languageId == g_UsbDeviceLanguageList.languageList[languageId].languageId) { if (stringDescriptor->stringIndex < (uint8_t)USB_DEVICE_STRING_COUNT) { languageIndex = stringDescriptor->stringIndex; } break; } } if ((uint8_t)USB_DEVICE_STRING_COUNT == languageIndex) { return kStatus_USB_InvalidRequest; } stringDescriptor->buffer = (uint8_t *)g_UsbDeviceLanguageList.languageList[languageId].string[languageIndex]; stringDescriptor->length = g_UsbDeviceLanguageList.languageList[languageId].length[languageIndex]; } return kStatus_USB_Success; } /*! * @brief USB device set speed function. * * This function sets the speed of the USB device. * * Due to the difference of HS and FS descriptors, the device descriptors and configurations need to be updated to match * current speed. * As the default, the device descriptors and configurations are configured by using FS parameters for both EHCI and * KHCI. * When the EHCI is enabled, the application needs to call this function to update device by using current speed. * The updated information includes endpoint max packet size, endpoint interval, etc. * * @param handle The USB device handle. * @param speed Speed type. USB_SPEED_HIGH/USB_SPEED_FULL/USB_SPEED_LOW. * * @return A USB error code or kStatus_USB_Success. */ usb_status_t USB_DeviceSetSpeed(usb_device_handle handle, uint8_t speed) { usb_descriptor_union_t *ptr1; usb_descriptor_union_t *ptr2; ptr1 = (usb_descriptor_union_t *)(void *)(&g_UsbDeviceConfigurationDescriptor[0]); ptr2 = (usb_descriptor_union_t *)(void *)(&g_UsbDeviceConfigurationDescriptor[USB_DESCRIPTOR_LENGTH_CONFIGURATION_ALL - 1U]); while (ptr1 < ptr2) { if (ptr1->common.bDescriptorType == USB_DESCRIPTOR_TYPE_ENDPOINT) { if (USB_SPEED_HIGH == speed) { if (((ptr1->endpoint.bEndpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_MASK) == USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_IN) && ((uint8_t)USB_CDC_VCOM_INTERRUPT_IN_ENDPOINT == (ptr1->endpoint.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK))) { ptr1->endpoint.bInterval = HS_CDC_VCOM_INTERRUPT_IN_INTERVAL; USB_SHORT_TO_LITTLE_ENDIAN_ADDRESS(HS_CDC_VCOM_INTERRUPT_IN_PACKET_SIZE, ptr1->endpoint.wMaxPacketSize); } else if (((ptr1->endpoint.bEndpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_MASK) == USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_IN) && ((uint8_t)USB_CDC_VCOM_BULK_IN_ENDPOINT == (ptr1->endpoint.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK))) { USB_SHORT_TO_LITTLE_ENDIAN_ADDRESS(HS_CDC_VCOM_BULK_IN_PACKET_SIZE, ptr1->endpoint.wMaxPacketSize); } else if (((ptr1->endpoint.bEndpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_MASK) == USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_OUT) && ((uint8_t)USB_CDC_VCOM_BULK_OUT_ENDPOINT == (ptr1->endpoint.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK))) { USB_SHORT_TO_LITTLE_ENDIAN_ADDRESS(HS_CDC_VCOM_BULK_OUT_PACKET_SIZE, ptr1->endpoint.wMaxPacketSize); } else { /* MISRA C-2012 Rule 15.7 */ } } else { if (((ptr1->endpoint.bEndpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_MASK) == USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_IN) && ((uint8_t)USB_CDC_VCOM_INTERRUPT_IN_ENDPOINT == (ptr1->endpoint.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK))) { ptr1->endpoint.bInterval = FS_CDC_VCOM_INTERRUPT_IN_INTERVAL; USB_SHORT_TO_LITTLE_ENDIAN_ADDRESS(FS_CDC_VCOM_INTERRUPT_IN_PACKET_SIZE, ptr1->endpoint.wMaxPacketSize); } else if (((ptr1->endpoint.bEndpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_MASK) == USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_IN) && ((uint8_t)USB_CDC_VCOM_BULK_IN_ENDPOINT == (ptr1->endpoint.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK))) { USB_SHORT_TO_LITTLE_ENDIAN_ADDRESS(FS_CDC_VCOM_BULK_IN_PACKET_SIZE, ptr1->endpoint.wMaxPacketSize); } else if (((ptr1->endpoint.bEndpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_MASK) == USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_OUT) && ((uint8_t)USB_CDC_VCOM_BULK_OUT_ENDPOINT == (ptr1->endpoint.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK))) { USB_SHORT_TO_LITTLE_ENDIAN_ADDRESS(FS_CDC_VCOM_BULK_OUT_PACKET_SIZE, ptr1->endpoint.wMaxPacketSize); } else { /* MISRA C-2012 Rule 15.7 */ } } } ptr1 = (usb_descriptor_union_t *)(void *)((uint8_t *)ptr1 + ptr1->common.bLength); } for (int i = 0; i < USB_CDC_VCOM_ENDPOINT_CIC_COUNT; i++) { if (USB_SPEED_HIGH == speed) { g_UsbDeviceCdcVcomCicEndpoints[i].maxPacketSize = HS_CDC_VCOM_INTERRUPT_IN_PACKET_SIZE; } else { g_UsbDeviceCdcVcomCicEndpoints[i].maxPacketSize = FS_CDC_VCOM_INTERRUPT_IN_PACKET_SIZE; } } for (int i = 0; i < USB_CDC_VCOM_ENDPOINT_DIC_COUNT; i++) { if (USB_SPEED_HIGH == speed) { if (0U != (g_UsbDeviceCdcVcomDicEndpoints[i].endpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_MASK)) { g_UsbDeviceCdcVcomDicEndpoints[i].maxPacketSize = HS_CDC_VCOM_BULK_IN_PACKET_SIZE; } else { g_UsbDeviceCdcVcomDicEndpoints[i].maxPacketSize = HS_CDC_VCOM_BULK_OUT_PACKET_SIZE; } } else { if (0U != (g_UsbDeviceCdcVcomDicEndpoints[i].endpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_MASK)) { g_UsbDeviceCdcVcomDicEndpoints[i].maxPacketSize = FS_CDC_VCOM_BULK_IN_PACKET_SIZE; } else { g_UsbDeviceCdcVcomDicEndpoints[i].maxPacketSize = FS_CDC_VCOM_BULK_OUT_PACKET_SIZE; } } } return kStatus_USB_Success; }