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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 */
/** */
/** Pictbridge Application */
/** */
/**************************************************************************/
/**************************************************************************/
/* Include necessary system files. */
#define UX_SOURCE_CODE
#include "ux_api.h"
#include "ux_pictbridge.h"
#include "ux_device_class_pima.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_pictbridge_dpsclient_thread PORTABLE C */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This is the Pictbridge dpsclient thread that receives and execute */
/* commands from the dpshost. */
/* */
/* INPUT */
/* */
/* pictbridge Pictbridge instance */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* */
/* CALLED BY */
/* */
/* user application */
/* */
/**************************************************************************/
VOID _ux_pictbridge_dpsclient_thread(ULONG parameter)
{
UX_PICTBRIDGE *pictbridge;
ULONG actual_flags;
UINT status = UX_SUCCESS;
ULONG object_length;
UCHAR *pima_object_buffer;
UX_SLAVE_CLASS_PIMA *pima;
UX_SLAVE_CLASS_PIMA_OBJECT *pima_object;
/* Cast the parameter passed in the thread into the pictbridge pointer. */
UX_THREAD_EXTENSION_PTR_GET(pictbridge, UX_PICTBRIDGE, parameter)
/* Loop forever waiting for changes signaled through the semaphore. */
while (1)
{
/* Report errors via error handler. */
if (status != UX_SUCCESS)
_ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, status);
/* We should wait for the host to send a script with a command. */
status = _ux_system_event_flags_get(&pictbridge -> ux_pictbridge_event_flags_group, (UX_PICTBRIDGE_EVENT_FLAG_NOTIFY_JOB_STATUS |
UX_PICTBRIDGE_EVENT_FLAG_NOTIFY_DEVICE_STATUS),
UX_OR_CLEAR, &actual_flags, UX_PICTBRIDGE_EVENT_TIMEOUT);
/* Check the status. */
if (status == UX_SUCCESS)
{
/* The event flag is meaningful. What did we get ? */
if ((actual_flags & UX_PICTBRIDGE_EVENT_FLAG_NOTIFY_JOB_STATUS) || (actual_flags & UX_PICTBRIDGE_EVENT_FLAG_NOTIFY_DEVICE_STATUS))
{
/* We need to send a response now. */
/* Get the pima instance from the pictbridge container. */
pima = (UX_SLAVE_CLASS_PIMA *) pictbridge -> ux_pictbridge_pima;
/* Get the address of the object container. We need the host container here, as it is a response for the host. */
pima_object = (UX_SLAVE_CLASS_PIMA_OBJECT *) pictbridge -> ux_pictbridge_object_host;
/* Get the object buffer address. */
pima_object_buffer = pima_object -> ux_device_class_pima_object_buffer;
/* Reset the object length. */
object_length = 0;
/* Clear the object memory buffer. */
_ux_utility_memory_set(pima_object_buffer, 0, UX_PICTBRIDGE_MAX_PIMA_OBJECT_BUFFER); /* Use case of memset is verified. */
/* Add the line <?xml version="1.0"?> */
status = _ux_pictbridge_object_tag_line_add(pima_object_buffer, object_length, _ux_pictbridge_xml_tag_line_xmlversion,
UX_PICTBRIDGE_TAG_FLAG_BEGIN | UX_PICTBRIDGE_TAG_FLAG_FORCE_LF,
UX_NULL, 0, UX_NULL, &pima_object_buffer, &object_length);
if (status != UX_SUCCESS)
continue;
/* Add the line <dps xmlns="http://www.cipa.jp/dps/schema/"> */
status = _ux_pictbridge_object_tag_line_add(pima_object_buffer, object_length, _ux_pictbridge_xml_tag_line_dpsxmlns,
UX_PICTBRIDGE_TAG_FLAG_BEGIN | UX_PICTBRIDGE_TAG_FLAG_FORCE_LF,
UX_NULL, 0, UX_NULL, &pima_object_buffer, &object_length);
if (status != UX_SUCCESS)
continue;
/* Add the line <output> */
status = _ux_pictbridge_object_tag_line_add(pima_object_buffer, object_length, _ux_pictbridge_xml_tag_line_output,
UX_PICTBRIDGE_TAG_FLAG_BEGIN | UX_PICTBRIDGE_TAG_FLAG_FORCE_LF,
UX_NULL, 0, UX_NULL, &pima_object_buffer, &object_length);
if (status != UX_SUCCESS)
continue;
/* Add the line <result> xxxxxxxx </result> */
status = _ux_pictbridge_object_tag_line_add(pima_object_buffer, object_length, _ux_pictbridge_xml_tag_line_result,
UX_PICTBRIDGE_TAG_FLAG_BEGIN | UX_PICTBRIDGE_TAG_FLAG_END | UX_PICTBRIDGE_TAG_FLAG_VARIABLE_HEXA,
UX_NULL, 0, (VOID *)(ALIGN_TYPE) pictbridge -> ux_pictbridge_operation_result, &pima_object_buffer, &object_length);
if (status != UX_SUCCESS)
continue;
/* Check what function was demanded. */
if (actual_flags & UX_PICTBRIDGE_EVENT_FLAG_NOTIFY_JOB_STATUS)
/* Add the line <notifyJobStatus/> */
status = _ux_pictbridge_object_tag_line_add(pima_object_buffer, object_length, _ux_pictbridge_xml_tag_line_notifyjobstatus,
UX_PICTBRIDGE_TAG_FLAG_BEGIN | UX_PICTBRIDGE_TAG_FLAG_FORCE_SLASH_AT_END,
UX_NULL, 0, UX_NULL, &pima_object_buffer, &object_length);
else
/* Add the line <notifyDeviceStatus/> */
status = _ux_pictbridge_object_tag_line_add(pima_object_buffer, object_length, _ux_pictbridge_xml_tag_line_notifydevicestatus,
UX_PICTBRIDGE_TAG_FLAG_BEGIN | UX_PICTBRIDGE_TAG_FLAG_FORCE_SLASH_AT_END,
UX_NULL, 0, UX_NULL, &pima_object_buffer, &object_length);
if (status != UX_SUCCESS)
continue;
/* Add the line </output> */
status = _ux_pictbridge_object_tag_line_add(pima_object_buffer, object_length, _ux_pictbridge_xml_tag_line_output,
UX_PICTBRIDGE_TAG_FLAG_END,
UX_NULL, 0, UX_NULL, &pima_object_buffer, &object_length);
if (status != UX_SUCCESS)
continue;
/* Add the line </dps> */
status = _ux_pictbridge_object_tag_line_add(pima_object_buffer, object_length, _ux_pictbridge_xml_tag_line_dps,
UX_PICTBRIDGE_TAG_FLAG_END,
UX_NULL, 0, UX_NULL, &pima_object_buffer, &object_length);
if (status != UX_SUCCESS)
continue;
/* Get the length of the object and store it into the object data set. */
pima_object -> ux_device_class_pima_object_length = object_length;
pima_object -> ux_device_class_pima_object_compressed_size = object_length;
/* Save the handle for this object. */
pima_object -> ux_device_class_pima_object_handle_id = UX_PICTBRIDGE_OBJECT_HANDLE_HOST_RESPONSE;
/* We need to change the file name to DRSPONSE.DPS. Encode the file name from ascii format into Unicode. */
_ux_utility_string_to_unicode(_ux_pictbridge_drsponse_name, pima_object -> ux_device_class_pima_object_filename);
/* Send the notification to the host that an object has been added. */
status = _ux_device_class_pima_object_add(pima, UX_PICTBRIDGE_OBJECT_HANDLE_HOST_RESPONSE);
if (status != UX_SUCCESS)
continue;
/* Check if user registered callback function is present. */
if (pictbridge -> ux_pictbridge_dps_event_callback_function != UX_NULL)
{
/* Call the user callback function. */
(pictbridge -> ux_pictbridge_dps_event_callback_function)(pictbridge, actual_flags);
}
}
}
}
}
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