/***************************************************************************
 * 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 CDC_ECM Class                                                */
/**                                                                       */
/**************************************************************************/
/**************************************************************************/

#define UX_SOURCE_CODE


/* Include necessary system files.  */

#include "ux_api.h"
#include "ux_device_class_cdc_ecm.h"
#include "ux_device_stack.h"

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _ux_device_class_cdc_ecm_control_request            PORTABLE C      */
/*                                                           6.1.12       */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Chaoqiong Xiao, Microsoft Corporation                               */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function manages the based sent by the host on the control     */
/*    endpoints with a CLASS or VENDOR SPECIFIC type.                     */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    cdc_ecm                           Pointer to cdc_ecm class          */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    None                                                                */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _ux_utility_short_get                 Get 16-bit value              */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    CDC_ECM Class                                                       */
/*                                                                        */
/**************************************************************************/
UINT  _ux_device_class_cdc_ecm_control_request(UX_SLAVE_CLASS_COMMAND *command)
{

UX_SLAVE_TRANSFER       *transfer_request;
UX_SLAVE_DEVICE         *device;
ULONG                   request;
ULONG                   request_value;
UX_SLAVE_CLASS          *class_ptr;
UX_SLAVE_CLASS_CDC_ECM  *cdc_ecm;

    /* Get the pointer to the device.  */
    device =  &_ux_system_slave -> ux_system_slave_device;

    /* Get the pointer to the transfer request associated with the control endpoint.  */
    transfer_request =  &device -> ux_slave_device_control_endpoint.ux_slave_endpoint_transfer_request;

    /* Extract all necessary fields of the request.  */
    request =  *(transfer_request -> ux_slave_transfer_request_setup + UX_SETUP_REQUEST);
    request_value  =   _ux_utility_short_get(transfer_request -> ux_slave_transfer_request_setup + UX_SETUP_VALUE);

    /* Get the class container.  */
    class_ptr =  command -> ux_slave_class_command_class_ptr;

    /* Get the cdc_ecm instance from this class container.  */
    cdc_ecm =  (UX_SLAVE_CLASS_CDC_ECM *) class_ptr -> ux_slave_class_instance;

    /* Here we proceed only the standard request we know of at the device level.  */
    switch (request)
    {

        case UX_DEVICE_CLASS_CDC_ECM_SET_ETHERNET_MULTICAST_FILTER                :

            /* Save the multicast filter.  */
            cdc_ecm -> ux_slave_class_cdc_ecm_ethernet_multicast_filter =  request_value;
            break ;

        case UX_DEVICE_CLASS_CDC_ECM_SET_ETHERNET_POWER_MANAGEMENT_FILTER        :

            /* Save the power management filter.  */
            cdc_ecm -> ux_slave_class_cdc_ecm_ethernet_power_management_filter =  request_value;
            break ;

        case UX_DEVICE_CLASS_CDC_ECM_SET_ETHERNET_PACKET_FILTER                    :

            /* Save the packet filter.  */
            cdc_ecm -> ux_slave_class_cdc_ecm_ethernet_packet_filter =  request_value;
            break ;

        case UX_DEVICE_CLASS_CDC_ECM_GET_ETHERNET_POWER_MANAGEMENT_FILTER        :
        default:

            /* Unknown function. It's not handled.  */
            return(UX_ERROR);
    }

    /* It's handled.  */
    return(UX_SUCCESS);
}