FreeBSD/Linux Kernel Cross Reference
sys/dev/gpio/gpiobusvar.h

     /*-
      * Copyright (c) 2009 Oleksandr Tymoshenko <gonzo@freebsd.org>
      * 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.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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.
     *
     * $FreeBSD: releng/9.0/sys/dev/gpio/gpiobusvar.h 213277 2010-09-29 20:53:33Z gonzo $
     *
     */
    
    #ifndef __GPIOBUS_H__
    #define __GPIOBUS_H__
    
    #include <sys/param.h>
    #include <sys/lock.h>
    #include <sys/mutex.h>
    
    #define GPIOBUS_IVAR(d) (struct gpiobus_ivar *) device_get_ivars(d)
    #define GPIOBUS_SOFTC(d) (struct gpiobus_softc *) device_get_softc(d)
    
    struct gpiobus_softc
    {
            struct mtx      sc_mtx;         /* bus mutex */
            device_t        sc_busdev;      /* bus device */
            device_t        sc_owner;       /* bus owner */
            device_t        sc_dev;         /* driver device */
            int             sc_npins;       /* total pins on bus */
            int             *sc_pins_mapped; /* mark mapped pins */
    };
    
    
    struct gpiobus_ivar
    {
            uint32_t        npins;  /* pins total */
            uint32_t        *pins;  /* pins map */
    };
    
    #endif  /* __GPIOBUS_H__ */

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