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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 */
/** */
/** Device PIMA Class */
/** */
/**************************************************************************/
/**************************************************************************/
#define UX_SOURCE_CODE
/* Include necessary system files. */
#include "ux_api.h"
#include "ux_device_class_pima.h"
#include "ux_device_stack.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_device_class_pima_event_get PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function checks if there is an event from the application */
/* */
/* INPUT */
/* */
/* pima Address of pima class */
/* event Pointer of the event */
/* */
/* OUTPUT */
/* */
/* status UX_SUCCESS if there is an */
/* event */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* ThreadX */
/* */
/**************************************************************************/
UINT _ux_device_class_pima_event_get(UX_SLAVE_CLASS_PIMA *pima,
UX_SLAVE_CLASS_PIMA_EVENT *pima_event)
{
UX_SLAVE_CLASS_PIMA_EVENT *current_pima_event;
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_DEVICE_CLASS_PIMA_EVENT_GET, pima, pima_event, 0, 0, UX_TRACE_DEVICE_CLASS_EVENTS, 0, 0)
/* Check if the head and the tail of the event array is the same. */
if (pima -> ux_device_class_pima_event_array_head ==
pima -> ux_device_class_pima_event_array_tail)
/* No event to report. */
return(UX_ERROR);
/* There is an event to report, get the current pointer to the event. */
current_pima_event = pima -> ux_device_class_pima_event_array_tail;
/* fill in the event structure from the user. */
pima_event -> ux_device_class_pima_event_code = current_pima_event -> ux_device_class_pima_event_code;
pima_event -> ux_device_class_pima_event_session_id = pima -> ux_device_class_pima_session_id;
pima_event -> ux_device_class_pima_event_transaction_id = pima -> ux_device_class_pima_transaction_id;
pima_event -> ux_device_class_pima_event_parameter_1 = current_pima_event -> ux_device_class_pima_event_parameter_1;
pima_event -> ux_device_class_pima_event_parameter_2 = current_pima_event -> ux_device_class_pima_event_parameter_2;
pima_event -> ux_device_class_pima_event_parameter_3 = current_pima_event -> ux_device_class_pima_event_parameter_3;
/* Adjust the tail pointer. Check if we are at the end. */
if ((current_pima_event + 1) == pima -> ux_device_class_pima_event_array_end)
/* We are at the end, go back to the beginning. */
pima -> ux_device_class_pima_event_array_tail = pima -> ux_device_class_pima_event_array;
else
/* We are not at the end, increment the tail position. */
pima -> ux_device_class_pima_event_array_tail++;
/* Return event status to the user. */
return(UX_SUCCESS);
}
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