/***************************************************************************
 * Copyright (c) 2024 Microsoft Corporation
 * Copyright (c) 2025-2026 STMicroelectronics.
 *
 * 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                                                        */
/**                                                                       */
/**   STM32 Controller Driver                                             */
/**                                                                       */
/**************************************************************************/
/**************************************************************************/

#define UX_SOURCE_CODE
#define UX_DCD_STM32_SOURCE_CODE


/* Include necessary system files.  */

#include "ux_api.h"
#include "ux_dcd_stm32.h"
#include "ux_device_stack.h"


/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _ux_dcd_stm32_endpoint_status                       PORTABLE C      */
/*                                                           6.4.1        */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Chaoqiong Xiao, Microsoft Corporation                               */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function will retrieve the status of the endpoint.             */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    dcd_stm32                             Pointer to device controller  */
/*    endpoint_index                        Endpoint index                */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    Completion Status                                                   */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    None                                                                */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    STM32 Controller Driver                                             */
/*                                                                        */
/*  RELEASE HISTORY                                                       */
/*                                                                        */
/*    DATE              NAME                      DESCRIPTION             */
/*                                                                        */
/*  05-19-2020     Chaoqiong Xiao           Initial Version 6.0           */
/*  09-30-2020     Chaoqiong Xiao           Modified comment(s), used ST  */
/*                                            HAL library to drive the    */
/*                                            controller,                 */
/*                                            resulting in version 6.1    */
/*  01-31-2022     Chaoqiong Xiao           Modified comment(s),          */
/*                                            added bi-dir EP support,    */
/*                                            resulting in version 6.1.10 */
/*                                                                        */
/**************************************************************************/
UINT _ux_dcd_stm32_endpoint_status(UX_DCD_STM32 *dcd_stm32, ULONG endpoint_index)
{
  UX_DCD_STM32_ED      *ed;

  /* Fetch the address of the physical endpoint.  */
  ed = _stm32_ed_get(dcd_stm32, endpoint_index);

  /* Check the endpoint status, if it is free, we have a illegal endpoint.  */
  if ((ed -> ux_dcd_stm32_ed_status & UX_DCD_STM32_ED_STATUS_USED) == 0)
    return(UX_ERROR);

  /* Check if the endpoint is stalled.  */
  if ((ed -> ux_dcd_stm32_ed_status & UX_DCD_STM32_ED_STATUS_STALLED) == 0)
    return(UX_FALSE);
  else
    return(UX_TRUE);
}
