FreeBSD/Linux Kernel Cross Reference
sys/dev/sbus/sbusvar.h

     /*      $NetBSD: sbusvar.h,v 1.20 2003/08/01 12:21:59 pk Exp $ */
     
     /*-
      * Copyright (c) 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Paul Kranenburg.
      *
     * 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 acknowledgement:
     *        This product includes software developed by the NetBSD
     *        Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
     */
    
    #ifndef _SBUS_VAR_H
    #define _SBUS_VAR_H
    
    #if defined(_KERNEL_OPT) && (defined(__sparc__) || defined(__sparc64__))
    #include "opt_sparc_arch.h"
    #endif
    
    #include <machine/bsd_openprom.h>
    
    struct sbus_softc;
    
    /*
     * S-bus variables.
     */
    struct sbusdev {
            struct  device *sd_dev;         /* backpointer to generic */
            struct  sbusdev *sd_bchain;     /* forward link in bus chain */
            void    (*sd_reset) __P((struct device *));
    };
    
    typedef u_int32_t sbus_slot_t;
    typedef u_int32_t sbus_offset_t;
    
    /*
     * Sbus driver attach arguments.
     */
    struct sbus_attach_args {
            int             sa_placeholder; /* for obio attach args sharing */
            bus_space_tag_t sa_bustag;
            bus_dma_tag_t   sa_dmatag;
            char            *sa_name;       /* PROM node name */
            int             sa_node;        /* PROM handle */
            struct openprom_addr *sa_reg;   /* Sbus register space for device */
            int             sa_nreg;        /* Number of Sbus register spaces */
    #define sa_slot         sa_reg[0].oa_space
    #define sa_offset       sa_reg[0].oa_base
    #define sa_size         sa_reg[0].oa_size
    
            struct openprom_intr *sa_intr;  /* Sbus interrupts for device */
            int             sa_nintr;       /* Number of interrupts */
    #define sa_pri          sa_intr[0].oi_pri
    
            u_int32_t       *sa_promvaddrs;/* PROM-supplied virtual addresses -- 32-bit */
            int             sa_npromvaddrs; /* Number of PROM VAs */
    #define sa_promvaddr    sa_promvaddrs[0]
            int             sa_frequency;   /* SBus clockrate */
    };
    
    /* sbus_attach_internal() is also used from obio.c */
    void    sbus_attach_common __P((struct sbus_softc *, char *, int, 
                                    const char * const *));
    int     sbus_print __P((void *, const char *));
    
    void    sbus_establish __P((struct sbusdev *, struct device *));
    
    int     sbus_setup_attach_args __P((
                    struct sbus_softc *,
                    bus_space_tag_t,
                    bus_dma_tag_t,
                    int,                    /*node*/
                    struct sbus_attach_args *));
   
   void    sbus_destroy_attach_args __P((struct sbus_attach_args *));
   
   #define sbus_bus_map(tag, slot, offset, sz, flags, hp) \
           bus_space_map(tag, BUS_ADDR(slot,offset), sz, flags, hp)
   bus_addr_t      sbus_bus_addr __P((bus_space_tag_t, u_int, u_int));
   void    sbus_promaddr_to_handle __P((bus_space_tag_t, u_int, 
           bus_space_handle_t *));
   
   #if notyet
   /* variables per Sbus */
   struct sbus_softc {
           struct  device sc_dev;          /* base device */
           bus_space_tag_t sc_bustag;
           bus_dma_tag_t   sc_dmatag;
           int     sc_clockfreq;           /* clock frequency (in Hz) */
           struct  sbusdev *sc_sbdev;      /* list of all children */
           struct  openprom_range *sc_range;
           int     sc_nrange;
           int     sc_burst;               /* burst transfer sizes supported */
           /* machdep stuff follows here */
           int     *sc_intr2ipl;           /* Interrupt level translation */
   };
   #endif
   
   
   /*
    * PROM-reported DMA burst sizes for the SBus
    */
   #define SBUS_BURST_1    0x1
   #define SBUS_BURST_2    0x2
   #define SBUS_BURST_4    0x4
   #define SBUS_BURST_8    0x8
   #define SBUS_BURST_16   0x10
   #define SBUS_BURST_32   0x20
   #define SBUS_BURST_64   0x40
   
   /* We use #defined(SUN4*) here while the ports are in flux */
   #if defined(SUN4) || defined(SUN4C) || defined(SUN4M) || defined(SUN4D)
   #include <sparc/dev/sbusvar.h>
   #elif defined(SUN4U)
   #include <sparc64/dev/sbusvar.h>
   #endif
   
   #endif /* _SBUS_VAR_H */

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