    /******************************************************************************
     * console.h
     *
     * Console I/O interface for Xen guest OSes.
     *
     * Permission is hereby granted, free of charge, to any person obtaining a copy
     * of this software and associated documentation files (the "Software"), to
     * deal in the Software without restriction, including without limitation the
     * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
     * sell copies of the Software, and to permit persons to whom the Software is
     * furnished to do so, subject to the following conditions:
     *
     * The above copyright notice and this permission notice shall be included in
     * all copies or substantial portions of the Software.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     * DEALINGS IN THE SOFTWARE.
     *
     * Copyright (c) 2005, Keir Fraser
     */

    #ifndef __XEN_PUBLIC_IO_CONSOLE_H__
    #define __XEN_PUBLIC_IO_CONSOLE_H__

    typedef uint32_t XENCONS_RING_IDX;

    #define MASK_XENCONS_IDX(idx, ring) ((idx) & (sizeof(ring)-1))

    struct xencons_interface {
        char in[1024];
        char out[2048];
        XENCONS_RING_IDX in_cons, in_prod;
        XENCONS_RING_IDX out_cons, out_prod;
    };

    #ifdef XEN_WANT_FLEX_CONSOLE_RING
    #include "ring.h"
    DEFINE_XEN_FLEX_RING(xencons);
    #endif

    #endif /* __XEN_PUBLIC_IO_CONSOLE_H__ */

    /*
     * Local variables:
     * mode: C
     * c-file-style: "BSD"
     * c-basic-offset: 4
     * tab-width: 4
     * indent-tabs-mode: nil
     * End:
     */