/***************************************************************************
 * 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_configure                      PORTABLE C      */
/*                                                           6.1          */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Chaoqiong Xiao, Microsoft Corporation                               */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function calls the USBX stack to do a SET_CONFIGURATION to the */
/*    dpump. Once the dpump is configured, its interface will be          */
/*    activated. The bulk endpoints enumerated(1 IN, 1 OUT ).             */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    dpump                                   Pointer to dpump class      */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    Completion Status                                                   */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _ux_host_stack_configuration_interface_get  Get interface           */
/*    _ux_host_stack_device_configuration_get     Get configuration       */
/*    _ux_host_stack_device_configuration_select  Select configuration    */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    _ux_host_class_dpump_activate          Data Pump class activate     */
/*                                                                        */
/**************************************************************************/
UINT  _ux_host_class_dpump_configure(UX_HOST_CLASS_DPUMP *dpump)
{

UINT                    status;
UX_CONFIGURATION        *configuration;
#if UX_MAX_DEVICES > 1
UX_DEVICE               *parent_device;
#endif


    /* If the device has been configured already, we don't need to do it
       again. */
    if (dpump -> ux_host_class_dpump_device -> ux_device_state == UX_DEVICE_CONFIGURED)
        return(UX_SUCCESS);

    /* A dpump normally has one configuration. So retrieve the 1st configuration
       only.  */
    status =  _ux_host_stack_device_configuration_get(dpump -> ux_host_class_dpump_device, 0, &configuration);
    if (status != UX_SUCCESS)
    {

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

        /* If trace is enabled, insert this event into the trace buffer.  */
        UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_CONFIGURATION_HANDLE_UNKNOWN, dpump -> ux_host_class_dpump_device, 0, 0, UX_TRACE_ERRORS, 0, 0)

        return(UX_CONFIGURATION_HANDLE_UNKNOWN);
    }

#if UX_MAX_DEVICES > 1
    /* Check the dpump power source and check the parent power source for
       incompatible connections.  */
    if (dpump -> ux_host_class_dpump_device -> ux_device_power_source == UX_DEVICE_BUS_POWERED)
    {

        /* Get parent device pointer.  */
        parent_device =  dpump -> ux_host_class_dpump_device -> ux_device_parent;

        /* If the device is NULL, the parent is the root dpump and we don't have to worry
           if the parent is not the root dpump, check for its power source.  */
        if ((parent_device != UX_NULL) && (parent_device -> ux_device_power_source == UX_DEVICE_BUS_POWERED))
        {

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

            return(UX_CONNECTION_INCOMPATIBLE);
        }
    }
#endif

    /* We have the valid configuration. Ask the USBX stack to set this configuration.  */
    status =  _ux_host_stack_device_configuration_select(configuration);
    if (status != UX_SUCCESS)
        return(status);

    /* If the operation went well, the dpump default alternate setting for the dpump interface is
       active and the interrupt endpoint is now enabled. We have to memorize the first interface since
       the interrupt endpoint is hooked to it. */
    status =  _ux_host_stack_configuration_interface_get(configuration, 0, 0, &dpump -> ux_host_class_dpump_interface);
    if (status != UX_SUCCESS)
    {

        /* Store the instance in the interface container, this is for the USB stack
           when it needs to invoke the class.  */
        dpump -> ux_host_class_dpump_interface -> ux_interface_class_instance =  (VOID *) dpump;
    }

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