/***************************************************************************
 * 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 CDC Class                                                    */
/**                                                                       */
/**************************************************************************/
/**************************************************************************/

#define UX_SOURCE_CODE


/* Include necessary system files.  */

#include "ux_api.h"
#include "ux_device_class_cdc_acm.h"
#include "ux_device_stack.h"


/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _ux_device_class_cdc_acm_activate                   PORTABLE C      */
/*                                                           6.1.12       */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Chaoqiong Xiao, Microsoft Corporation                               */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function initializes the USB CDC device.                       */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    command                               Pointer to cdc_acm command    */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    Completion Status                                                   */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    None                                                                */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    USBX Source Code                                                    */
/*                                                                        */
/**************************************************************************/
UINT  _ux_device_class_cdc_acm_activate(UX_SLAVE_CLASS_COMMAND *command)
{

UX_SLAVE_INTERFACE                      *interface_ptr;
UX_SLAVE_CLASS                          *class_ptr;
UX_SLAVE_CLASS_CDC_ACM                  *cdc_acm;

    /* Get the class container.  */
    class_ptr =  command -> ux_slave_class_command_class_ptr;

    /* Get the class instance in the container.  */
    cdc_acm = (UX_SLAVE_CLASS_CDC_ACM *) class_ptr -> ux_slave_class_instance;

    /* Get the interface that owns this instance.  */
    interface_ptr =  (UX_SLAVE_INTERFACE  *) command -> ux_slave_class_command_interface;

    /* Store the class instance into the interface.  */
    interface_ptr -> ux_slave_interface_class_instance =  (VOID *)cdc_acm;

    /* Now the opposite, store the interface in the class instance.  */
    cdc_acm -> ux_slave_class_cdc_acm_interface =  interface_ptr;

    /* If there is a activate function call it.  */
    if (cdc_acm -> ux_slave_class_cdc_acm_parameter.ux_slave_class_cdc_acm_instance_activate != UX_NULL)
    {
        /* Invoke the application.  */
        cdc_acm -> ux_slave_class_cdc_acm_parameter.ux_slave_class_cdc_acm_instance_activate(cdc_acm);
    }

    /* If trace is enabled, insert this event into the trace buffer.  */
    UX_TRACE_IN_LINE_INSERT(UX_TRACE_DEVICE_CLASS_CDC_ACM_ACTIVATE, cdc_acm, 0, 0, 0, UX_TRACE_DEVICE_CLASS_EVENTS, 0, 0)

    /* If trace is enabled, register this object.  */
    UX_TRACE_OBJECT_REGISTER(UX_TRACE_DEVICE_OBJECT_TYPE_INTERFACE, cdc_acm, 0, 0, 0)

    /* Return completion status.  */
    return(UX_SUCCESS);
}

