/*************************************************************************** * Copyright (c) 2024 Microsoft Corporation * Copyright (c) 2026-present Eclipse ThreadX contributors * * This program and the accompanying materials are made available under the * terms of the MIT License which is available at * https://opensource.org/licenses/MIT. * * SPDX-License-Identifier: MIT **************************************************************************/ /**************************************************************************/ /**************************************************************************/ /** */ /** USBX Component */ /** */ /** Host Stack */ /** */ /**************************************************************************/ /**************************************************************************/ /* Include necessary system files. */ #define UX_SOURCE_CODE #include "ux_api.h" #include "ux_host_stack.h" /**************************************************************************/ /* */ /* FUNCTION RELEASE */ /* */ /* _ux_host_stack_interface_instance_create PORTABLE C */ /* 6.1.12 */ /* AUTHOR */ /* */ /* Chaoqiong Xiao, Microsoft Corporation */ /* */ /* DESCRIPTION */ /* */ /* This function will create an interface instance. It creates each */ /* endpoint associated with the interface. */ /* */ /* INPUT */ /* */ /* interface Pointer to interface */ /* */ /* OUTPUT */ /* */ /* Completion Status */ /* */ /* CALLS */ /* */ /* _ux_host_stack_endpoint_instance_create Create instance endpoint */ /* */ /* CALLED BY */ /* */ /* USBX Components */ /* */ /**************************************************************************/ UINT _ux_host_stack_interface_instance_create(UX_INTERFACE *interface_ptr) { UX_ENDPOINT *endpoint; UINT status; /* If trace is enabled, insert this event into the trace buffer. */ UX_TRACE_IN_LINE_INSERT(UX_TRACE_HOST_STACK_INTERFACE_INSTANCE_CREATE, interface_ptr, 0, 0, 0, UX_TRACE_HOST_STACK_EVENTS, 0, 0) /* Obtain the first endpoint for this alternate setting. */ endpoint = interface_ptr -> ux_interface_first_endpoint; /* Loop to create each endpoint. */ while (endpoint != UX_NULL) { /* Create an endpoint for the instance. */ status = _ux_host_stack_endpoint_instance_create(endpoint); /* Check status, the controller may have refused the endpoint creation. */ if (status != UX_SUCCESS) /* An error occurred at the controller level. */ return(status); /* Move to next endpoint. */ endpoint = endpoint -> ux_endpoint_next_endpoint; } /* If trace is enabled, register this object. */ UX_TRACE_OBJECT_REGISTER(UX_TRACE_HOST_OBJECT_TYPE_INTERFACE, interface_ptr, 0, 0, 0); /* Return completion status. */ return(UX_SUCCESS); }