/* $NetBSD: at91spivar.h,v 1.2 2008/07/03 01:15:38 matt Exp $ */

/*-
 * Copyright (c) 2007 Embedtronics Oy.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided
 *    with the distribution.
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgements:
 *      This product includes software developed by the Urbana-Champaign
 *      Independent Media Center.
 *      This product includes software developed by Garrett D'Amore.
 * 4. Urbana-Champaign Independent Media Center's name and Garrett
 *    D'Amore's name may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE URBANA-CHAMPAIGN INDEPENDENT
 * MEDIA CENTER AND GARRETT D'AMORE ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE URBANA-CHAMPAIGN INDEPENDENT
 * MEDIA CENTER OR GARRETT D'AMORE BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _AT91SPIVAR_H_
#define _AT91SPIVAR_H_

#include <dev/spi/spivar.h>

struct at91spi_machdep {
        int             (*select_slave)(void *self, int);
};

typedef const struct at91spi_machdep *at91spi_machdep_tag_t;

struct at91spi_softc {
        device_t                sc_dev;
        bus_space_tag_t         sc_iot;
        bus_space_handle_t      sc_ioh;

        bus_dma_tag_t           sc_dmat;

        int                     sc_pid;         /* peripheral identifier */
        struct spi_controller   sc_spi;         /* SPI implementation ops */
        at91spi_machdep_tag_t   sc_md;          /* board-specific support */
        struct at91spi_job      *sc_job;        /* current job */
        struct spi_chunk        *sc_wchunk;
        struct spi_chunk        *sc_rchunk;
        void                    *sc_ih;         /* interrupt handler (what?) */

        void                    *sc_dmapage;
        bus_addr_t              sc_dmaaddr;
        bus_dmamap_t            sc_dmamap;
        int                     sc_dmaoffs;     /* current dma offset   */

        struct spi_transfer     *sc_transfer;
        bool                    sc_running;     /* is it processing stuff? */

        SIMPLEQ_HEAD(,spi_transfer)     sc_q;
};

void at91spi_attach_common(device_t parent, device_t self, void *aux,
                            at91spi_machdep_tag_t md);

#endif  /* _AT91SPIVAR_H_ */