DropDownList with data from an Enum

I need to do a Helper where I pass an Enum and it mounts a DropDownList based on all Enum values, I tried to do it as follows:

C #:

public static HtmlString DropDownListEnumFor(this HtmlHelper htmlHelper, Type _enum, string name, int value)
        {
            List<SelectListItem> lst = new List<SelectListItem>();
            lst.Add(new SelectListItem()
            {
                Text = string.Empty,
                Value = string.Empty
            });

            //percorre objetos do enum
            foreach (var item in (_enum).GetFields())
            {
                if (item.FieldType == (_enum))
                {
                    //busca atributos definidos
                    var e = item.GetValue(item);
                    var nome = AttributesHelper.DescricaoEnum(e);

                    //carrega list de retorno
                    if (!string.IsNullOrEmpty(nome))
                    {
                        lst.Add(new SelectListItem()
                        {
                            Text = nome,
                            Value = ((int)item.GetValue(item)).ToString(),
                            Selected = value == e.GetHashCode()
                        });
                    }
                }

            }
            MvcHtmlString html = htmlHelper.DropDownList(name, lst, new object { });

            return html;
        }


public static T Convert<T>(object value)
    {
        var output = value.ToString();

        var member = value.GetType().GetMember(output).First();
        var attributes = member.GetCustomAttributes(typeof(T), false);

        T obj = attributes.Cast<T>().FirstOrDefault();

        return obj;
    }


public static string DescricaoEnum(object obj)
    {
        return Convert<DescriptionAttribute>(obj).Description;
    }

Html:

@Html.DropDownListEnumFor(typeof(TipoObjetoEnum), "ddlTeste", 1)

What would be the best way for me to pass an Enum type to my class and be able to do what was mentioned?