FreeBSD/Linux Kernel Cross Reference
sys/dev/tc/tcvar.h

     /* $OpenBSD: tcvar.h,v 1.16 2010/11/11 17:54:54 miod Exp $ */
     /* $NetBSD: tcvar.h,v 1.17 2000/06/04 19:15:15 cgd Exp $ */
     
     /*
      * Copyright (c) 1995 Carnegie-Mellon University.
      * All rights reserved.
      *
      * Author: Chris G. Demetriou
      * 
     * Permission to use, copy, modify and distribute this software and
     * its documentation is hereby granted, provided that both the copyright
     * notice and this permission notice appear in all copies of the
     * software, derivative works or modified versions, and any portions
     * thereof, and that both notices appear in supporting documentation.
     * 
     * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
     * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
     * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     * 
     * Carnegie Mellon requests users of this software to return to
     *
     *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
     *  School of Computer Science
     *  Carnegie Mellon University
     *  Pittsburgh PA 15213-3890
     *
     * any improvements or extensions that they make and grant Carnegie the
     * rights to redistribute these changes.
     */
    
    #ifndef __DEV_TC_TCVAR_H__
    #define __DEV_TC_TCVAR_H__
    
    /*
     * Definitions for TURBOchannel autoconfiguration.
     */
    
    #include <machine/bus.h>
    #include <dev/tc/tcreg.h>
    
    /*
     * Machine-dependent definitions.
     */
    #include <machine/tc_machdep.h>
    
    struct tc_softc {
            struct  device sc_dv;
    
            int     sc_speed;
            int     sc_nslots;
            struct tc_slotdesc *sc_slots;
    
            void    (*sc_intr_establish)(struct device *, void *,
                            int, int (*)(void *), void *, const char *);
            void    (*sc_intr_disestablish)(struct device *, void *, const char *);
            bus_dma_tag_t (*sc_get_dma_tag)(int);
    };
    
    /*
     * Arguments used to attach TURBOchannel busses.
     */
    struct tcbus_attach_args {
            char            *tba_busname;           /* XXX should be common */
            bus_space_tag_t tba_memt;
    
            /* Bus information */
            u_int           tba_speed;              /* see TC_SPEED_* below */
            u_int           tba_nslots;
            struct tc_slotdesc *tba_slots;
            u_int           tba_nbuiltins;
            const struct tc_builtin *tba_builtins;
            
    
            /* TC bus resource management; XXX will move elsewhere eventually. */
            void    (*tba_intr_establish)(struct device *, void *,
                            int, int (*)(void *), void *, const char *);
            void    (*tba_intr_disestablish)(struct device *, void *, const char *);
            bus_dma_tag_t (*tba_get_dma_tag)(int);
    };
    
    /*
     * Arguments used to attach TURBOchannel devices.
     */
    struct tc_attach_args {
            bus_space_tag_t ta_memt;
            bus_dma_tag_t   ta_dmat;
    
            char            ta_modname[TC_ROM_LLEN+1];
            u_int           ta_slot;
            tc_offset_t     ta_offset;
            tc_addr_t       ta_addr;
            void            *ta_cookie;
            u_int           ta_busspeed;            /* see TC_SPEED_* below */
    };
    
    /*
     * Description of TURBOchannel slots, provided by machine-dependent
     * code to the TURBOchannel bus driver.
     */
   struct tc_slotdesc {
           tc_addr_t       tcs_addr;
           void            *tcs_cookie;
           int             tcs_used;
   };
   
   /*
    * Description of built-in TURBOchannel devices, provided by
    * machine-dependent code to the TURBOchannel bus driver.
    */
   struct tc_builtin {
           char            *tcb_modname;
           u_int           tcb_slot;
           tc_offset_t     tcb_offset;
           void            *tcb_cookie;
   };
   
   /*
    * Interrupt establishment functions.
    */
   int     tc_checkslot(tc_addr_t, char *);
   void    tc_devinfo(const char *, char *, size_t);
   void    tcattach(struct device *, struct device *, void *);
   void    tc_intr_establish(struct device *, void *, int, int (*)(void *),
               void *, const char *);
   void    tc_intr_disestablish(struct device *, void *, const char *);
   
   /*
    * Easy to remember names for TURBOchannel device locators.
    */
   #define tccf_slot       cf_loc[0]               /* slot */
   #define tccf_offset     cf_loc[1]               /* offset */
   
   #define TCCF_SLOT_UNKNOWN       -1
   #define TCCF_OFFSET_UNKNOWN     -1
   
   /*
    * Miscellaneous definitions.
    */
   #define TC_SPEED_12_5_MHZ       25              /* 12.5MHz TC bus */
   #define TC_SPEED_22_5_MHZ       45              /* 22.5MHz TC bus */
   #define TC_SPEED_25_MHZ         50              /* 25MHz TC bus */
   
   #define TC_SPEED_TO_KHZ(s)      ((s) * (1000 / 2))
   
   #endif /* __DEV_TC_TCVAR_H__ */

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