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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 */
/** */
/** Audio Class */
/** */
/**************************************************************************/
/**************************************************************************/
/* Include necessary system files. */
#define UX_SOURCE_CODE
#include "ux_api.h"
#include "ux_host_class_audio.h"
#include "ux_host_stack.h"
#if defined(UX_HOST_CLASS_AUDIO_FEEDBACK_SUPPORT)
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_host_class_audio_feedback_transfer_completed PORTABLE C */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function receives a completion call back on a isoch transfer */
/* request. */
/* */
/* INPUT */
/* */
/* transfer_request Pointer to transfer request */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* */
/* CALLED BY */
/* */
/* HCD */
/* */
/**************************************************************************/
VOID _ux_host_class_audio_feedback_transfer_completed(UX_TRANSFER *transfer_request)
{
UX_HOST_CLASS_AUDIO *audio;
UX_ENDPOINT *endpoint;
ULONG endpoint_dir;
/* Check status. */
if (transfer_request -> ux_transfer_request_completion_code != UX_SUCCESS)
return;
/* Sync with feedback buffer. */
audio = (UX_HOST_CLASS_AUDIO *) transfer_request -> ux_transfer_request_class_instance;
endpoint = transfer_request -> ux_transfer_request_endpoint;
endpoint_dir = endpoint -> ux_endpoint_descriptor.bEndpointAddress & UX_ENDPOINT_DIRECTION;
if (endpoint_dir == UX_ENDPOINT_IN)
{
_ux_utility_memory_copy(audio -> ux_host_class_audio_feedback_buffer,
transfer_request -> ux_transfer_request_data_pointer,
sizeof(audio -> ux_host_class_audio_feedback_buffer)); /* Use case of memcpy is verified. */
}
/* Issue another request again. */
_ux_host_stack_transfer_request(transfer_request);
}
#endif
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