common/usbx_host_classes/src/ux_host_class_swar_ioctl.c


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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                                                        */
/**                                                                       */
/**   Host Sierra Wireless AR module class                                */
/**                                                                       */
/**************************************************************************/
/**************************************************************************/


/* Include necessary system files.  */

#define UX_SOURCE_CODE

#include "ux_api.h"
#include "ux_host_class_swar.h"
#include "ux_host_stack.h"


/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _ux_host_class_swar_ioctl                           PORTABLE C      */
/*                                                           6.3.0        */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Chaoqiong Xiao, Microsoft Corporation                               */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function is the ioctl entry point for the application to       */
/*    configure the Swar device.                                          */
/*                                                                        */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    swar                                  Pointer to swar class         */
/*    ioctl_function                        ioctl function                */
/*    parameter                             pointer to structure          */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    Completion Status                                                   */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _ux_host_stack_endpoint_transfer_abort                              */
/*                                          Abort transfer                */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Application                                                         */
/*                                                                        */
/**************************************************************************/
UINT  _ux_host_class_swar_ioctl(UX_HOST_CLASS_SWAR *swar, ULONG ioctl_function,
                                    VOID *parameter)
{

UINT                                status;

    UX_PARAMETER_NOT_USED(parameter);

    /* The command request will tell us we need to do here.  */
    switch (ioctl_function)
    {

    case UX_HOST_CLASS_SWAR_IOCTL_ABORT_IN_PIPE :

        /* If trace is enabled, insert this event into the trace buffer.  */
        UX_TRACE_IN_LINE_INSERT(UX_TRACE_HOST_CLASS_SWAR_IOCTL_ABORT_IN_PIPE, swar, swar -> ux_host_class_swar_bulk_in_endpoint, 0, 0, UX_TRACE_HOST_CLASS_EVENTS, 0, 0)

        /* We need to abort transactions on the bulk In pipe.  */
        _ux_host_stack_endpoint_transfer_abort(swar -> ux_host_class_swar_bulk_in_endpoint);

        /* Status is successful.  */
        status = UX_SUCCESS;
        break;

    case UX_HOST_CLASS_SWAR_IOCTL_ABORT_OUT_PIPE :

        /* If trace is enabled, insert this event into the trace buffer.  */
        UX_TRACE_IN_LINE_INSERT(UX_TRACE_HOST_CLASS_SWAR_IOCTL_ABORT_OUT_PIPE, swar, swar -> ux_host_class_swar_bulk_out_endpoint, 0, 0, UX_TRACE_HOST_CLASS_EVENTS, 0, 0)

        /* We need to abort transactions on the bulk Out pipe.  */
        _ux_host_stack_endpoint_transfer_abort(swar -> ux_host_class_swar_bulk_out_endpoint);

        /* Status is successful.  */
        status = UX_SUCCESS;
        break;

    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)

        /* Function not supported. Return an error.  */
        status =  UX_FUNCTION_NOT_SUPPORTED;
        break;
    }

    /* Return status to caller.  */
    return(status);
}


/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _uxe_host_class_swar_ioctl                          PORTABLE C      */
/*                                                           6.3.0        */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Chaoqiong Xiao, Microsoft Corporation                               */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function checks errors in SWAR ioctl function call.            */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    swar                                  Pointer to SWAR class         */
/*    ioctl_function                        ioctl function                */
/*    parameter                             pointer to structure          */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    Status                                                              */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _ux_host_class_swar_ioctl             SWAR ioctl                    */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Application                                                         */
/*                                                                        */
/**************************************************************************/
UINT  _uxe_host_class_swar_ioctl(UX_HOST_CLASS_SWAR *swar, ULONG ioctl_function,
                                    VOID *parameter)
{

    /* Sanity check.  */
    if (swar == UX_NULL)
        return(UX_INVALID_PARAMETER);

    /* Invoke SWAR ioctl function.  */
    return(_ux_host_class_swar_ioctl(swar, ioctl_function, parameter));
}