/***************************************************************************
 * 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 Audio Class                                                    */
/**                                                                       */
/**************************************************************************/
/**************************************************************************/

#define UX_SOURCE_CODE


/* Include necessary system files.  */

#include "ux_api.h"
#include "ux_device_class_audio.h"
#include "ux_device_stack.h"


/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _ux_device_class_audio_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                                                                 */
/*                                                                        */
/*    command                               Pointer to class command      */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    Completion Status                                                   */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _ux_device_stack_endpoint_stall       Endpoint stall                */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Device Audio Class                                                  */
/*                                                                        */
/**************************************************************************/
UINT  _ux_device_class_audio_control_request(UX_SLAVE_CLASS_COMMAND *command)
{

UX_SLAVE_TRANSFER             *transfer_request;
UX_SLAVE_DEVICE               *device;
UX_SLAVE_CLASS                *class_ptr;
UX_DEVICE_CLASS_AUDIO         *audio;


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

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

    /* 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;

    /* Invoke callback.  */
    if (audio -> ux_device_class_audio_callbacks.ux_device_class_audio_control_process != UX_NULL)
    {

        /* Handled by callback.  */
        return audio -> ux_device_class_audio_callbacks.ux_device_class_audio_control_process(audio, transfer_request);
    }

    /* Not handled.  */
    return(UX_ERROR);
}