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/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** 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_rh_device_extraction PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function handles a device extraction on a downstream port */
/* of the root hub pointed by HCD. */
/* */
/* INPUT */
/* */
/* HCD Pointer to HCD structure */
/* port_index Port index of insertion */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_host_stack_device_remove Remove device */
/* */
/* CALLED BY */
/* */
/* USBX Components */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */
/* 09-30-2020 Chaoqiong Xiao Modified comment(s), */
/* resulting in version 6.1 */
/* */
/**************************************************************************/
UINT _ux_host_stack_rh_device_extraction(UX_HCD *hcd, UINT port_index)
{
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_HOST_STACK_RH_DEVICE_EXTRACTION, hcd, port_index, 0, 0, UX_TRACE_HOST_STACK_EVENTS, 0, 0)
/* Ask the stack to remove the device, pass the value 0 as the parent root hub. */
_ux_host_stack_device_remove(hcd, 0, port_index);
/* The device has been removed, so the port is free again. */
hcd -> ux_hcd_rh_device_connection &= (ULONG)~(1 << port_index);
/* That command should never fail! */
return(UX_SUCCESS);
}