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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 */
/** */
/** VIDEO Class */
/** */
/**************************************************************************/
/**************************************************************************/
/* Include necessary system files. */
#define UX_SOURCE_CODE
#include "ux_api.h"
#include "ux_host_class_video.h"
#include "ux_host_stack.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_host_class_video_ioctl PORTABLE C */
/* 6.3.0 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function is the ioctl entry point for the application to */
/* configure the video class based device. */
/* */
/* */
/* INPUT */
/* */
/* video Pointer to video class */
/* ioctl_function Ioctl function */
/* parameter Pointer to structure */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_host_class_video_format_data_get Get video format data. */
/* _ux_host_class_video_frame_data_get Get video frame data */
/* _ux_host_class_video_frame_interval_get */
/* Get video frame internal data.*/
/* _ux_host_class_video_channel_start Start the video. */
/* _ux_host_class_video_stop Stop the video. */
/* _ux_host_stack_endpoint_transfer_abort */
/* Abort the transfer */
/* _ux_system_error_handler Log system error */
/* */
/* CALLED BY */
/* */
/* Application */
/* */
/**************************************************************************/
UINT _ux_host_class_video_ioctl(UX_HOST_CLASS_VIDEO *video, ULONG ioctl_function,
VOID *parameter)
{
UINT status;
UX_HOST_CLASS_VIDEO_PARAMETER_INPUT_TERMINAL *input_terminal;
UX_HOST_CLASS_VIDEO_PARAMETER_NUMBER_FORMATS *number_formats;
UX_HOST_CLASS_VIDEO_PARAMETER_FORMAT_DATA *format_parameter;
UX_HOST_CLASS_VIDEO_PARAMETER_FRAME_DATA *frame_parameter;
UX_HOST_CLASS_VIDEO_PARAMETER_CHANNEL *channel_parameter;
UX_HOST_CLASS_VIDEO_PARAMETER_FRAME_INTERVAL *interval_parameter;
/* Ensure the instance is valid. */
if ((video -> ux_host_class_video_state != UX_HOST_CLASS_INSTANCE_LIVE) &&
(video -> ux_host_class_video_state != UX_HOST_CLASS_INSTANCE_MOUNTING))
{
/* If trace is enabled, insert this event into the trace buffer. */
//UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_HOST_CLASS_INSTANCE_UNKNOWN, video, 0, 0, UX_TRACE_ERRORS, 0, 0)
return(UX_HOST_CLASS_INSTANCE_UNKNOWN);
}
/* The command request will tell us what we need to do here. */
switch (ioctl_function)
{
case UX_HOST_CLASS_VIDEO_IOCTL_GET_INPUT_TERMINAL:
/* Set status to error by default. */
status = UX_ERROR;
/* Is the video terminal defined ? */
if (video -> ux_host_class_video_terminal_id != 0)
{
/* Cast answer. */
input_terminal = (UX_HOST_CLASS_VIDEO_PARAMETER_INPUT_TERMINAL *) parameter;
/* Return input terminal id. */
input_terminal -> ux_host_class_video_parameter_input_terminal_id = video -> ux_host_class_video_terminal_id;
/* Return input terminal type. */
input_terminal -> ux_host_class_video_parameter_input_terminal_type = video -> ux_host_class_video_terminal_type;
/* Status ok. */
status = UX_SUCCESS;
}
break;
case UX_HOST_CLASS_VIDEO_IOCTL_GET_FORMAT_NUMBER:
/* Cast answer. */
number_formats = (UX_HOST_CLASS_VIDEO_PARAMETER_NUMBER_FORMATS *) parameter;
/* Save the number of formats. */
number_formats -> ux_host_class_video_parameter_number_formats = video -> ux_host_class_video_number_formats;
/* Status ok. */
status = UX_SUCCESS;
break;
case UX_HOST_CLASS_VIDEO_IOCTL_GET_FORMAT_DATA:
/* Cast answer. */
format_parameter = (UX_HOST_CLASS_VIDEO_PARAMETER_FORMAT_DATA *) parameter;
/* Get the format data for the format index requested. */
status = _ux_host_class_video_format_data_get(video, format_parameter);
break;
case UX_HOST_CLASS_VIDEO_IOCTL_GET_FRAME_DATA:
/* Cast answer. */
frame_parameter = (UX_HOST_CLASS_VIDEO_PARAMETER_FRAME_DATA *) parameter;
/* Get the frame data for the frame index requested. */
status = _ux_host_class_video_frame_data_get(video, frame_parameter);
break;
case UX_HOST_CLASS_VIDEO_IOCTL_GET_FRAME_INTERVAL:
/* Cast answer. */
interval_parameter = (UX_HOST_CLASS_VIDEO_PARAMETER_FRAME_INTERVAL *) parameter;
/* Get the frame intervals for the frame index requested. */
status = _ux_host_class_video_frame_interval_get(video, interval_parameter);
break;
case UX_HOST_CLASS_VIDEO_IOCTL_CHANNEL_START:
/* Cast answer. */
channel_parameter = (UX_HOST_CLASS_VIDEO_PARAMETER_CHANNEL *) parameter;
/* Start the channel for reading video input. */
status = _ux_host_class_video_channel_start(video, channel_parameter);
break;
case UX_HOST_CLASS_VIDEO_IOCTL_CHANNEL_STOP:
/* Stop the channel. */
status = _ux_host_class_video_stop(video);
break;
case UX_HOST_CLASS_VIDEO_IOCTL_ABORT_IN_PIPE :
/* If trace is enabled, insert this event into the trace buffer. */
//UX_TRACE_IN_LINE_INSERT(UX_TRACE_HOST_CLASS_VIDEO_IOCTL_ABORT_IN_PIPE, video, video -> ux_host_class_video_isochronous_endpoint, 0, 0, UX_TRACE_HOST_CLASS_EVENTS, 0, 0)
/* We need to abort transactions on the bulk In pipe. */
_ux_host_stack_endpoint_transfer_abort(video -> ux_host_class_video_isochronous_endpoint);
/* All linked requests are aborted, reset indexes. */
video -> ux_host_class_video_transfer_request_start_index = 0;
video -> ux_host_class_video_transfer_request_end_index = 0;
/* Status is successful. */
status = UX_SUCCESS;
break;
default:
/* Error trap. */
_ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_FUNCTION_NOT_SUPPORTED);
/* If trace is enabled, insert this event into the trace buffer. */
//UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_FUNCTION_NOT_SUPPORTED, 0, 0, 0, UX_TRACE_ERRORS, 0, 0)
/* Function not supported. Return an error. */
status = UX_FUNCTION_NOT_SUPPORTED;
}
/* Return status to caller. */
return(status);
}
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _uxe_host_class_video_ioctl PORTABLE C */
/* 6.3.0 */
/* AUTHOR */
/* */
/* Yajun Xia, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function checks errors in video ioctl function call. */
/* */
/* INPUT */
/* */
/* video Pointer to video class */
/* ioctl_function Ioctl function */
/* parameter Pointer to structure */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_host_class_video_ioctl Video ioctl */
/* */
/* CALLED BY */
/* */
/* Application */
/* */
/**************************************************************************/
UINT _uxe_host_class_video_ioctl(UX_HOST_CLASS_VIDEO *video, ULONG ioctl_function,
VOID *parameter)
{
/* Sanity checks. */
if (video == UX_NULL)
return(UX_INVALID_PARAMETER);
/* Call the actual video ioctl function. */
return(_ux_host_class_video_ioctl(video, ioctl_function, parameter));
}
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