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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_initialize PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function analyzes and replies to the MSG INITIALIZE */
/* endpoints with a CLASS or VENDOR SPECIFIC type. */
/* */
/* 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_initialize(UX_SLAVE_CLASS_RNDIS *rndis, UX_SLAVE_TRANSFER *transfer_request)
{
UCHAR *rndis_msg;
UCHAR *rndis_response;
/* 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_INITIALIZE_REQUEST_ID);
/* Get the major version and store it into the RNDIS instance. */
rndis -> ux_slave_class_rndis_major_version = _ux_utility_long_get(rndis_msg + UX_DEVICE_CLASS_RNDIS_MSG_INITIALIZE_MAJOR_VERSION);
/* Get the minor version and store it into the RNDIS instance. */
rndis -> ux_slave_class_rndis_minor_version = _ux_utility_long_get(rndis_msg + UX_DEVICE_CLASS_RNDIS_MSG_INITIALIZE_MINOR_VERSION);
/* Get the max transfer size and store it into the RNDIS instance. */
rndis -> ux_slave_class_rndis_max_transfer_size = _ux_utility_long_get(rndis_msg + UX_DEVICE_CLASS_RNDIS_MSG_INITIALIZE_MAX_TRANSFER_SIZE);
/* Store the state machine to initialized. */
rndis -> ux_slave_class_rndis_state = UX_DEVICE_CLASS_RNDIS_STATE_INITIALIZED;
/* 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_INITIALIZE_MESSAGE_TYPE, UX_DEVICE_CLASS_RNDIS_CMPLT_INITIALIZE);
/* Then the length of the response. */
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_INITIALIZE_MESSAGE_LENGTH, UX_DEVICE_CLASS_RNDIS_CMPLT_INITIALIZE_RESPONSE_LENGTH);
/* Store the request ID. */
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_INITIALIZE_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_INITIALIZE_STATUS, UX_DEVICE_CLASS_RNDIS_STATUS_SUCCESS);
/* Set the major version of the device */
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_INITIALIZE_MAJOR_VERSION, UX_DEVICE_CLASS_RNDIS_VERSION_MAJOR);
/* Set the minor version of the device */
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_INITIALIZE_MINOR_VERSION, UX_DEVICE_CLASS_RNDIS_VERSION_MINOR);
/* Set the type of connection supported. */
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_INITIALIZE_DEVICE_FLAGS, UX_DEVICE_CLASS_RNDIS_DF_CONNECTION_SUPPORTED);
/* Set the type of media supported. */
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_INITIALIZE_MEDIUM, UX_DEVICE_CLASS_RNDIS_MEDIUM_SUPPORTED);
/* Set the max packet per transfer. */
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_INITIALIZE_MAX_PACKETS_PER_TRANSFER, UX_DEVICE_CLASS_RNDIS_MAX_PACKET_PER_TRANSFER);
/* Set the max transfer size. */
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_INITIALIZE_MAX_TRANSFER_SIZE, UX_DEVICE_CLASS_RNDIS_MAX_PACKET_TRANSFER_SIZE);
/* Set the packet alignment factor. */
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_INITIALIZE_PACKET_ALIGNMENT, UX_DEVICE_CLASS_RNDIS_PACKET_ALIGNMENT_FACTOR);
/* Set AFListOffset and AFListSize fields to 0. */
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_INITIALIZE_AFL_LIST_OFFSET, 0);
_ux_utility_long_put(rndis_response + UX_DEVICE_CLASS_RNDIS_CMPLT_INITIALIZE_AFL_LIST_SIZE, 0);
/* Set the response length. */
rndis -> ux_slave_class_rndis_response_length = UX_DEVICE_CLASS_RNDIS_CMPLT_INITIALIZE_RESPONSE_LENGTH;
/* We are done. Return UX_SUCCESS. */
return(UX_SUCCESS);
}
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