FreeBSD/Linux Kernel Cross Reference
sys/i4b/include/i4b_global.h

     /*
      * Copyright (c) 1997, 1999 Hellmuth Michaelis. 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.
     *
     *---------------------------------------------------------------------------
     *
     *      i4b_global.h - i4b global include file
     *      --------------------------------------
     *
     * $FreeBSD$
     *
     *      last edit-date: [Mon Apr 26 11:10:26 1999]
     *
     *---------------------------------------------------------------------------*/
    
    #ifndef _I4B_GLOBAL_H_
    #define _I4B_GLOBAL_H_
    
    /*---------------------------------------------------------------------------*
     *      hiding OS differences in the kernel
     *---------------------------------------------------------------------------*/ 
    
    /*---------------*/
    /* time handling */
    /*---------------*/
    
    #ifdef __FreeBSD__
    #include <sys/param.h>
    #if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
    
    #define TIMEOUT_FUNC_T  timeout_t *
    #define SECOND          time_second
    #define MICROTIME(x)    getmicrotime(&(x))
    
    #else /* FreeBSD < 3 */
    
    #define TIMEOUT_FUNC_T  timeout_func_t
    #define SECOND          time.tv_sec
    #define MICROTIME(x)    microtime(&(x))
    
    #endif /* >= 3 */
    #endif /* __FreeBSD__ */
    
    #if defined(__NetBSD__) || defined (__OpenBSD__) || defined(__bsdi__)
    
    #define TIMEOUT_FUNC_T  void *
    #define SECOND          time.tv_sec
    #define MICROTIME(x)    (x) = time
    
    #endif /* __NetBSD__ */
    
    /*----------------------*/
    /* poll/select handling */
    /*----------------------*/
    
    #if (defined(__FreeBSD__) && \
            (!defined(__FreeBSD_version) || (__FreeBSD_version < 300001))) \
                    || defined (__OpenBSD__) || defined(__bsdi__)
    #define OS_USES_SELECT
    #else
    #define OS_USES_POLL
    #endif
    
    /*---------------------------------------------------------------------------*
     *      misc globally used things in the kernel
     *---------------------------------------------------------------------------*/ 
    
    /* timer states */
    
    #define TIMER_IDLE      1               /* a timer is running   */
    #define TIMER_ACTIVE    2               /* a timer is idle      */
    
    /* i4b's spl */
    
    #define SPLI4B()        splimp()        /* spl for i4b          */
    
    /* critial code region handling macros */
    
    #define CRIT_VAR        int _svd_spl_   /* declare variable     */
   #define CRIT_BEG        _svd_spl_ = SPLI4B()    /* save spl     */
   #define CRIT_END        splx(_svd_spl_) /* restore spl          */
   
   /* definitions for the STATUS indications L1 -> L2 -> L3 */
   
   #define STI_ATTACH      0       /* attach at boot time  */
   #define STI_L1STAT      1       /* layer 1 status       */
   #define STI_L2STAT      2       /* layer 2 status       */
   #define STI_TEIASG      3       /* TEI assignments      */
   #define STI_PDEACT      4       /* Layer 1 T4 expired = persistent deactivation */
   #define STI_NOL1ACC     5       /* no outgoing L1 access possible */
   
   /* definitions for the COMMAND requests L3 -> L2 -> L1 */
   
   #define CMR_DOPEN       0       /* daemon opened /dev/i4b */
   #define CMR_DCLOSE      1       /* daemon closed /dev/i4b */
   
   /*---------------------------------------------------------------------------
    *
    *      Number of max supported passive card units
    *
    *      Teles/Creatix/Neuhaus cards have a hardware limitation
    *      as one is able to set 3 (sometimes 4) different configurations by
    *      jumpers so a maximum of 3 (4) cards per ISA bus is possible.
    *      (Note: there are multiple ISA buses on some architectures)
    *
    *---------------------------------------------------------------------------*/
   #define ISIC_MAXUNIT    3               /* max no of supported units 0..3 */
   
   #endif /* _I4B_GLOBAL_H_ */

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