/***************************************************************************
 * 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                                                        */
/**                                                                       */
/**   Host Data Pump Class                                                */
/**                                                                       */
/**************************************************************************/
/**************************************************************************/


/* Include necessary system files.  */

#define UX_SOURCE_CODE

#include "ux_api.h"
#include "ux_host_class_dpump.h"
#include "ux_host_stack.h"


/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _ux_host_class_dpump_entry                          PORTABLE C      */
/*                                                           6.1.10       */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Chaoqiong Xiao, Microsoft Corporation                               */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function is the entry point of the dpump class. It will be     */
/*    called by the USBX stack enumeration module when there is a new     */
/*    dpump on the bus or when the USB dpump is removed.                  */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    command                                Data pump class command      */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    Completion Status                                                   */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _ux_host_class_dpump_activate       Activate dpump class            */
/*    _ux_host_class_dpump_deactivate     Deactivate dpump class          */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Data pump Class                                                     */
/*                                                                        */
/**************************************************************************/
UINT  _ux_host_class_dpump_entry(UX_HOST_CLASS_COMMAND *command)
{

UINT    status;


    /* The command request will tell us we need to do here, either a enumeration
       query, an activation or a deactivation.  */
    switch (command -> ux_host_class_command_request)
    {

    case UX_HOST_CLASS_COMMAND_QUERY:

        /* The query command is used to let the stack enumeration process know if we want to own
           this device or not.  */
        if((command -> ux_host_class_command_usage == UX_HOST_CLASS_COMMAND_USAGE_CSP) &&
                             (command -> ux_host_class_command_class == UX_HOST_CLASS_DPUMP_CLASS) &&
                             (command -> ux_host_class_command_subclass == UX_HOST_CLASS_DPUMP_SUBCLASS) &&
                             (command -> ux_host_class_command_protocol == UX_HOST_CLASS_DPUMP_PROTOCOL))
            return(UX_SUCCESS);
        else
            return(UX_NO_CLASS_MATCH);

    case UX_HOST_CLASS_COMMAND_ACTIVATE:

        /* The activate command is used when the device inserted has found a parent and
           is ready to complete the enumeration.  */
        status =  _ux_host_class_dpump_activate(command);
        return(status);

    case UX_HOST_CLASS_COMMAND_ACTIVATE_WAIT:
        return(UX_STATE_NEXT);

    case UX_HOST_CLASS_COMMAND_DEACTIVATE:

        /* The deactivate command is used when the device has been extracted either
           directly or when its parents has been extracted.  */
        status =  _ux_host_class_dpump_deactivate(command);
        return(status);

    default:

        /* Error trap. */
        _ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_FUNCTION_NOT_SUPPORTED);

        /* If trace is enabled, insert this event into the trace buffer.  */
        UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_FUNCTION_NOT_SUPPORTED, 0, 0, 0, UX_TRACE_ERRORS, 0, 0)

        return(UX_FUNCTION_NOT_SUPPORTED);
    }
}