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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 */
/** */
/** Device RNDIS Class */
/** */
/**************************************************************************/
/**************************************************************************/
#define UX_SOURCE_CODE
/* Include necessary system files. */
#include "ux_api.h"
#include "ux_device_class_rndis.h"
#include "ux_device_stack.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_device_class_rndis_msg_keep_alive PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function analyzes and replies to the MSG KEEP_ALIVE */
/* */
/* INPUT */
/* */
/* rndis Pointer to rndis class */
/* transfer_request Pointer to the transfer request */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* _ux_utility_long_get Get 32-bit value */
/* _ux_utility_long_put Put 32-bit value */
/* */
/* CALLED BY */
/* */
/* RNDIS Class */
/* */
/**************************************************************************/
UINT _ux_device_class_rndis_msg_keep_alive(UX_SLAVE_CLASS_RNDIS *rndis, UX_SLAVE_TRANSFER *transfer_request)
{
UCHAR *rndis_msg;
UCHAR *rndis_response;
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_DEVICE_CLASS_RNDIS_MSG_KEEP_ALIVE, rndis, 0, 0, 0, UX_TRACE_DEVICE_CLASS_EVENTS, 0, 0)
/* Get the pointer to the RNDIS message. */
rndis_msg = transfer_request -> ux_slave_transfer_request_data_pointer;
/* Get the request ID and keep it for the response. */
rndis -> ux_slave_class_rndis_request_id = _ux_utility_long_get(rndis_msg + UX_DEVICE_CLASS_RNDIS_MSG_KEEP_ALIVE_REQUEST_ID);
/* Now prepare the response. */
rndis_response = rndis -> ux_slave_class_rndis_response;
/* First store the command. */
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_KEEP_ALIVE_MESSAGE_TYPE, UX_DEVICE_CLASS_RNDIS_CMPLT_KEEP_ALIVE);
/* Then the length of the response. */
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_KEEP_ALIVE_MESSAGE_LENGTH, UX_DEVICE_CLASS_RNDIS_CMPLT_KEEP_ALIVE_RESPONSE_LENGTH);
/* Store the request ID. */
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_KEEP_ALIVE_REQUEST_ID, rndis -> ux_slave_class_rndis_request_id);
/* Force the status to SUCCESS. */
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_KEEP_ALIVE_STATUS, UX_DEVICE_CLASS_RNDIS_STATUS_SUCCESS);
/* Set the response length. */
rndis -> ux_slave_class_rndis_response_length = UX_DEVICE_CLASS_RNDIS_CMPLT_KEEP_ALIVE_RESPONSE_LENGTH;
/* We are done. Return UX_SUCCESS. */
return(UX_SUCCESS);
}
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