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

     /*
      * Copyright (c) 1997, 2002 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: releng/5.1/sys/i4b/include/i4b_global.h 92487 2002-03-17 09:33:15Z hm $
     *
     *      last edit-date: [Sun Mar 17 09:55:26 2002]
     *
     *---------------------------------------------------------------------------*/
    
    #ifndef _I4B_GLOBAL_H_
    #define _I4B_GLOBAL_H_
    
    /*---------------------------------------------------------------------------*
     *      hiding OS differences in the kernel
     *---------------------------------------------------------------------------*/ 
    
    #if defined(__FreeBSD__) && __FreeBSD__ >= 5
    /*
     * Deprecated LKM interface.
     */
    #include <sys/module.h>
    #define PSEUDO_SET(sym, name) \
            static int name ## _modevent(module_t mod, int type, void *data) \
            { \
                    void (*initfunc)(void *) = (void (*)(void *))data; \
                    switch (type) { \
                    case MOD_LOAD: \
                            /* printf(#name " module load\n"); */ \
                            initfunc(NULL); \
                            break; \
                    case MOD_UNLOAD: \
                            printf(#name " module unload - not possible for this module type\n"); \
                            return EINVAL; \
                    } \
                    return 0; \
            } \
            static moduledata_t name ## _mod = { \
                    #name, \
                    name ## _modevent, \
                    (void *)sym \
            }; \
            DECLARE_MODULE(name, name ## _mod, SI_SUB_PSEUDO, SI_ORDER_ANY)
    #endif
    
    /*---------------*/
    /* time handling */
    /*---------------*/
    
    #include <sys/param.h>
    
    #define TIMEOUT_FUNC_T  timeout_t *
    #define SECOND          time_second
    #define MICROTIME(x)    getmicrotime(&(x))
    
    /*----------------*/
    /* timer handling */
    /*----------------*/
    
    #define START_TIMER(XHANDLE, XF, XSC, XTIME) XHANDLE = timeout((TIMEOUT_FUNC_T)XF, (void*)XSC, XTIME)
    #define STOP_TIMER(XHANDLE, XF, XSC)    untimeout((TIMEOUT_FUNC_T)XF, (void*)XSC, XHANDLE)
    
    /*---------------------------------------------------------------------------*
     *      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               */
   #define CMR_SETTRACE    2       /* set D-channel and B-channel trace    */
   #define CMR_GCST        3       /* get chipset statistics               */
   #define CMR_CCST        4       /* clear chipset statistics             */
   
   #endif /* _I4B_GLOBAL_H_ */

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