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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_object_info_send PORTABLE C */
/* 6.1.12 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* Receive the info data set of a new object to be stored. */
/* */
/* INPUT */
/* */
/* pima Pima instance associated */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* */
/* CALLED BY */
/* */
/* user application */
/* */
/**************************************************************************/
UINT _ux_pictbridge_dpsclient_object_info_send(UX_SLAVE_CLASS_PIMA *pima, UX_SLAVE_CLASS_PIMA_OBJECT *object,
ULONG storage_id,
ULONG parent_object_handle,
ULONG *object_handle)
{
UX_PICTBRIDGE *pictbridge;
UX_SLAVE_CLASS_PIMA_OBJECT *object_info;
UCHAR string_discovery_name[UX_PICTBRIDGE_MAX_FILE_NAME_SIZE + 1]; /* +1 for null-terminator */
UINT length, length1;
UX_PARAMETER_NOT_USED(storage_id);
UX_PARAMETER_NOT_USED(parent_object_handle);
/* Get the pointer to the Pictbridge instance. */
pictbridge = (UX_PICTBRIDGE *)pima -> ux_device_class_pima_application;
/* We only have one object. */
object_info = (UX_SLAVE_CLASS_PIMA_OBJECT *) pictbridge -> ux_pictbridge_object_host;
/* Copy the demanded object info set. */
_ux_utility_memory_copy(object_info, object, UX_SLAVE_CLASS_PIMA_OBJECT_DATA_LENGTH); /* Use case of memcpy is verified. */
/* Store the object handle. In Pictbridge we only receive XML scripts so the handle is hardwired to 1. */
object_info -> ux_device_class_pima_object_handle_id = 1;
*object_handle = 1;
/* Check state machine. If we are in discovery pending mode, check file name of this object. */
if (pictbridge -> ux_pictbridge_discovery_state == UX_PICTBRIDGE_DPSCLIENT_DISCOVERY_PENDING)
{
/* We are in the discovery mode. Check for file name. It must match HDISCVRY.DPS in Unicode mode. */
/* Check if this is a script. */
if (object_info -> ux_device_class_pima_object_format == UX_DEVICE_CLASS_PIMA_OFC_SCRIPT)
{
/* Yes this is a script. We need to search for the HDISCVRY.DPS file name.
Get the file name length (with null-terminator). */
length1 = (UINT)(*object_info -> ux_device_class_pima_object_filename);
/* Now, compare it to the HDISCVRY.DPS file name. Check length first. */
if (length1 <= UX_PICTBRIDGE_MAX_FILE_NAME_SIZE)
{
/* Invalidate length, on error it's untouched. */
length = UX_PICTBRIDGE_MAX_FILE_NAME_SIZE + 1;
_ux_utility_string_length_check(_ux_pictbridge_hdiscovery_name, &length, UX_PICTBRIDGE_MAX_FILE_NAME_SIZE);
if ((length + 1) == length1)
{
/* Get the file name in a ascii format (with null-terminator). */
_ux_utility_unicode_to_string(object_info -> ux_device_class_pima_object_filename, string_discovery_name);
/* So far, the length of name of the files are the same.
Compare names now (since length is same just compare without null-terminator). */
if (_ux_utility_memory_compare(_ux_pictbridge_hdiscovery_name, string_discovery_name,
length) == UX_SUCCESS)
{
/* We are done with discovery of the printer. We can now send notifications when the camera wants to print an object. */
pictbridge -> ux_pictbridge_discovery_state = UX_PICTBRIDGE_DPSCLIENT_DISCOVERY_COMPLETE;
/* Set an event flag if the application is listening. */
_ux_system_event_flags_set(&pictbridge -> ux_pictbridge_event_flags_group, UX_PICTBRIDGE_EVENT_FLAG_DISCOVERY, UX_OR);
/* There is no object during the discovery cycle. */
return(UX_SUCCESS);
}
}
}
}
}
/* What cycle are we in ? */
if (pictbridge -> ux_pictbridge_host_client_state_machine == UX_PICTBRIDGE_STATE_MACHINE_IDLE)
/* Since we are in idle state, we must have received a request from the host. */
pictbridge -> ux_pictbridge_host_client_state_machine = UX_PICTBRIDGE_STATE_MACHINE_HOST_REQUEST;
/* We have copied the requested data. Return OK. */
return(UX_SUCCESS);
}
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