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/***************************************************************************
* 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_configuration_instance_create PORTABLE C */
/* 6.2.0 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function will create a configuration instance. It scan all the */
/* interfaces hooked to the configuration and enable each interface */
/* with the alternate setting 0. */
/* */
/* INPUT */
/* */
/* configuration Pointer to configuration */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_host_stack_interface_instance_create Create interface instance */
/* */
/* CALLED BY */
/* */
/* USBX Components */
/* */
/**************************************************************************/
UINT _ux_host_stack_configuration_instance_create(UX_CONFIGURATION *configuration)
{
UX_INTERFACE *interface_ptr;
UINT status;
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_HOST_STACK_CONFIGURATION_INSTANCE_CREATE, configuration, 0, 0, 0, UX_TRACE_HOST_STACK_EVENTS, 0, 0)
/* Obtain the first interface for this configuration. */
interface_ptr = configuration -> ux_configuration_first_interface;
/* Each selected alternate setting 0 for each interface must be created. */
while (interface_ptr != UX_NULL)
{
/* Check if we are dealing with the first alternate setting. */
if (interface_ptr -> ux_interface_descriptor.bAlternateSetting == 0)
{
#if UX_HOST_STACK_CONFIGURATION_INSTANCE_CREATE_CONTROL == UX_HOST_STACK_CONFIGURATION_INSTANCE_CREATE_OWNED
/* Create the interface, if it's usable. */
if (interface_ptr -> ux_interface_class || configuration -> ux_configuration_device -> ux_device_class)
#endif
{
status = _ux_host_stack_interface_instance_create(interface_ptr);
/* Check status, the controller may have refused the endpoint creation. */
if (status != UX_SUCCESS)
/* An error occurred. The interface cannot be mounted. */
return(status);
}
}
/* Next interface. */
interface_ptr = interface_ptr -> ux_interface_next_interface;
}
/* Return successful completion. */
return(UX_SUCCESS);
}
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