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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 */
/** */
/** PIMA Class */
/** */
/**************************************************************************/
/**************************************************************************/
/* Include necessary system files. */
#define UX_SOURCE_CODE
#include "ux_api.h"
#include "ux_host_class_pima.h"
#include "ux_host_stack.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_host_class_pima_object_info_get PORTABLE C */
/* 6.3.0 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function gets the current object information block. */
/* */
/* INPUT */
/* */
/* pima Pointer to pima class */
/* pima_session Pointer to pima session */
/* object_handle The object handle */
/* object Object structure to fill */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_host_class_pima_command Pima command function */
/* _ux_utility_descriptor_parse Unpack descriptor */
/* _ux_utility_memory_allocate Allocate memory */
/* _ux_utility_memory_copy Copy memory */
/* _ux_utility_memory_free Free allocated memory */
/* */
/* CALLED BY */
/* */
/* USB application */
/* */
/**************************************************************************/
UINT _ux_host_class_pima_object_info_get(UX_HOST_CLASS_PIMA *pima,
UX_HOST_CLASS_PIMA_SESSION *pima_session,
ULONG object_handle, UX_HOST_CLASS_PIMA_OBJECT *object)
{
UX_HOST_CLASS_PIMA_COMMAND command;
UCHAR *object_buffer;
UCHAR *object_pointer;
ULONG unicode_string_length;
UINT status;
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_HOST_CLASS_PIMA_OBJECT_INFO_GET, pima, object_handle, object, 0, UX_TRACE_HOST_CLASS_EVENTS, 0, 0)
/* Check if this session is valid or not. */
if (pima_session -> ux_host_class_pima_session_magic != UX_HOST_CLASS_PIMA_MAGIC_NUMBER)
return (UX_HOST_CLASS_PIMA_RC_SESSION_NOT_OPEN);
/* Check if this session is opened or not. */
if (pima_session -> ux_host_class_pima_session_state != UX_HOST_CLASS_PIMA_SESSION_STATE_OPENED)
return (UX_HOST_CLASS_PIMA_RC_SESSION_NOT_OPEN);
/* Issue command to get the object info. 1 parameter. */
command.ux_host_class_pima_command_nb_parameters = 1;
/* Parameter 1 is the Object Handle. */
command.ux_host_class_pima_command_parameter_1 = object_handle;
/* Other parameters unused. */
command.ux_host_class_pima_command_parameter_2 = 0;
command.ux_host_class_pima_command_parameter_3 = 0;
command.ux_host_class_pima_command_parameter_4 = 0;
command.ux_host_class_pima_command_parameter_5 = 0;
/* Then set the command to GET_OBJECT_INFO. */
command.ux_host_class_pima_command_operation_code = UX_HOST_CLASS_PIMA_OC_GET_OBJECT_INFO;
/* Allocate some DMA safe memory for receiving the object info block. */
object_buffer = _ux_utility_memory_allocate(UX_SAFE_ALIGN, UX_CACHE_SAFE_MEMORY, UX_HOST_CLASS_PIMA_OBJECT_MAX_LENGTH);
if (object_buffer == UX_NULL)
return(UX_MEMORY_INSUFFICIENT);
/* Issue the command. */
status = _ux_host_class_pima_command(pima, &command, UX_HOST_CLASS_PIMA_DATA_PHASE_IN , object_buffer,
UX_HOST_CLASS_PIMA_OBJECT_MAX_LENGTH, UX_HOST_CLASS_PIMA_OBJECT_MAX_LENGTH);
/* Check the result. If the result is OK, the object info block was read properly. */
if (status == UX_SUCCESS)
{
/* Uncompress the object descriptor, at least the fixed part. */
_ux_utility_descriptor_parse(object_buffer,
_ux_system_class_pima_object_structure,
UX_HOST_CLASS_PIMA_OBJECT_ENTRIES,
(UCHAR *) object);
/* Copy the object filename field. Point to the beginning of the object description string. */
object_pointer = object_buffer + UX_HOST_CLASS_PIMA_OBJECT_VARIABLE_OFFSET;
/* Get the unicode string length. */
unicode_string_length = ((ULONG) *object_pointer * 2) + 1;
/* Check if string can fit in our buffer. */
if (unicode_string_length > UX_HOST_CLASS_PIMA_UNICODE_MAX_LENGTH)
/* Return error. */
status = UX_MEMORY_INSUFFICIENT;
/* Is there enough space? */
if (status == UX_SUCCESS)
{
/* Copy that string into the object description field. */
_ux_utility_memory_copy(object -> ux_host_class_pima_object_filename, object_pointer, unicode_string_length); /* Use case of memcpy is verified. */
/* Point to the next field. */
object_pointer += unicode_string_length;
/* Get the unicode string length. */
unicode_string_length = ((ULONG) *object_pointer * 2) + 1;
/* Ensure the string can fit in our buffer. */
if (unicode_string_length > UX_HOST_CLASS_PIMA_DATE_TIME_STRING_MAX_LENGTH)
/* Return error. */
status = UX_MEMORY_INSUFFICIENT;
}
/* Is there enough space? */
if (status == UX_SUCCESS)
{
/* Copy that string into the capture date field. */
_ux_utility_memory_copy(object -> ux_host_class_pima_object_capture_date, object_pointer, unicode_string_length); /* Use case of memcpy is verified. */
/* Point to the next field. */
object_pointer += unicode_string_length;
/* Get the unicode string length. */
unicode_string_length = ((ULONG) *object_pointer * 2) + 1;
/* Ensure the string can fit in our buffer. */
if (unicode_string_length > UX_HOST_CLASS_PIMA_DATE_TIME_STRING_MAX_LENGTH)
/* Return error. */
status = UX_MEMORY_INSUFFICIENT;
}
/* Is there enough space? */
if (status == UX_SUCCESS)
{
/* Copy that string into the modification date field. */
_ux_utility_memory_copy(object -> ux_host_class_pima_object_modification_date, object_pointer, unicode_string_length); /* Use case of memcpy is verified. */
/* Point to the next field. */
object_pointer += unicode_string_length;
/* Get the unicode string length. */
unicode_string_length = ((ULONG) *object_pointer * 2) + 1;
/* Ensure the string can fit in our buffer. */
if (unicode_string_length > UX_HOST_CLASS_PIMA_UNICODE_MAX_LENGTH)
/* Return error. */
status = UX_MEMORY_INSUFFICIENT;
}
/* Is there enough space? */
if (status == UX_SUCCESS)
{
/* Copy that string into the keywords field. */
_ux_utility_memory_copy(object -> ux_host_class_pima_object_keywords, object_pointer, unicode_string_length); /* Use case of memcpy is verified. */
/* Make the object closed. */
object -> ux_host_class_pima_object_state = UX_HOST_CLASS_PIMA_OBJECT_STATE_CLOSED;
/* Reset the reading\writing offset */
object -> ux_host_class_pima_object_offset = 0;
}
else
{
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_MEMORY_INSUFFICIENT, 0, 0, 0, UX_TRACE_ERRORS, 0, 0)
/* Report error to application. */
_ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_MEMORY_INSUFFICIENT);
}
}
/* Free the original object info buffer. */
_ux_utility_memory_free(object_buffer);
/* Return completion status. */
return(status);
}
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _uxe_host_class_pima_object_info_get PORTABLE C */
/* 6.3.0 */
/* AUTHOR */
/* */
/* Yajun Xia, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function checks errors in pima object info get function call. */
/* */
/* INPUT */
/* */
/* pima Pointer to pima class */
/* pima_session Pointer to pima session */
/* object_handle The object handle */
/* object Object structure to fill */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_host_class_pima_object_info_get Get pima object info */
/* */
/* CALLED BY */
/* */
/* USB application */
/* */
/**************************************************************************/
UINT _uxe_host_class_pima_object_info_get(UX_HOST_CLASS_PIMA *pima,
UX_HOST_CLASS_PIMA_SESSION *pima_session,
ULONG object_handle, UX_HOST_CLASS_PIMA_OBJECT *object)
{
/* Sanity checks. */
if ((pima == UX_NULL) || (pima_session == UX_NULL) || (object == UX_NULL))
return(UX_INVALID_PARAMETER);
/* Call the actual pima object info get function. */
return(_ux_host_class_pima_object_info_get(pima, pima_session, object_handle, object));
}
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