FreeBSD/Linux Kernel Cross Reference
sys/dev/mvme/mvmebus.h

     /*      $NetBSD: mvmebus.h,v 1.3 2008/04/28 20:23:54 martin Exp $       */
     
     /*-
      * Copyright (c) 2000, 2002 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Steve C. Woodford.
      *
     * 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 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 _MVME_MVMEBUS_H
    #define _MVME_MVMEBUS_H
    
    /*
     * VMEbus master and slave windows are described using
     * instances of this structure.
     *
     * The chip-specific code records the details of the available mappings
     * for the MVME board.
     */
    struct mvmebus_range {
            vme_am_t        vr_am;          /* Address modifier (A16, A24, A32) */
            vme_datasize_t  vr_datasize;    /* Datasize: logical OR of D8,D16,D32 */
            paddr_t         vr_locstart;    /* CPU-relative address of mapping */
            paddr_t         vr_mask;        /* Mask to apply to this mapping */
            vme_addr_t      vr_vmestart;    /* VMEbus start address */
            vme_addr_t      vr_vmeend;      /* VMEbus end address */
    };
    
    /* Assigned to vr_am to specify the mapping is not valid */
    #define MVMEBUS_AM_DISABLED     ((vme_am_t)-1)
    
    /* For slave mappings, these specify the slave's capabilities */
    #define MVMEBUS_AM_CAP_DATA     0x0100
    #define MVMEBUS_AM_CAP_PROG     0x0200
    #define MVMEBUS_AM_CAP_BLK      0x0400
    #define MVMEBUS_AM_CAP_BLKD64   0x0800
    #define MVMEBUS_AM_CAP_USER     0x1000
    #define MVMEBUS_AM_CAP_SUPER    0x2000
    #define MVMEBUS_AM_HAS_CAP(x)   (((x) & 0x3f00) != 0)
    
    #define MVMEBUS_AM2CAP(am)      (_mvmebus_am_cap[((am) & \
                                        (VME_AM_MODEMASK | VME_AM_PRIVMASK))])
    
    
    /*
     * This records VMEbus-specific details of a region of bus_space_map'd
     * VMEbus address space.
     */
    struct mvmebus_mapresc {
            bus_space_handle_t      mr_handle;
            bus_addr_t              mr_addr;
            bus_size_t              mr_size;
            vme_am_t                mr_am;
            vme_datasize_t          mr_datasize;
            int                     mr_range;
    };
    
    
    /*
     * This records the VMEbus-specific details of a region of phyisical
     * memory accessible through a VMEbus slave map.
     */
    struct mvmebus_dmamap {
            vme_am_t                vm_am;
            vme_datasize_t          vm_datasize;
            vme_swap_t              vm_swap;
            struct mvmebus_range    *vm_slave;
    };
    
    
    struct mvmebus_softc {
            struct device           sc_dev;
            bus_space_tag_t         sc_bust;
            bus_dma_tag_t           sc_dmat;
            short                   sc_irqref[8];
            void                    *sc_chip;
            int                     sc_nmasters;
           struct mvmebus_range    *sc_masters;
           int                     sc_nslaves;
           struct mvmebus_range    *sc_slaves;
           struct evcnt            sc_evcnt[7];
           void                    (*sc_intr_establish)(void *, int, int, int, int,
                                       int (*)(void *), void *, struct evcnt *);
           void                    (*sc_intr_disestablish)(void *, int, int, int,
                                       struct evcnt *);
           struct vme_chipset_tag  sc_vct;
           struct mvme68k_bus_dma_tag      sc_mvmedmat;
   };
   
   
   void    mvmebus_attach(struct mvmebus_softc *);
   int     mvmebus_map(void *, vme_addr_t, vme_size_t, vme_am_t,
               vme_datasize_t, vme_swap_t, bus_space_tag_t *,
               bus_space_handle_t *, vme_mapresc_t *);
   void    mvmebus_unmap(void *, vme_mapresc_t);
   int     mvmebus_probe(void *, vme_addr_t, vme_size_t,
               vme_am_t, vme_datasize_t,
               int (*) (void *, bus_space_tag_t, bus_space_handle_t), void *arg);
   int     mvmebus_intmap(void *, int, int, vme_intr_handle_t *);
   const struct evcnt *mvmebus_intr_evcnt(void *, vme_intr_handle_t);
   void *  mvmebus_intr_establish(void *, vme_intr_handle_t, int,
               int (*) (void *), void *);
   void    mvmebus_intr_disestablish(void *, vme_intr_handle_t);
   
   int     mvmebus_dmamap_create(void *, vme_size_t, vme_am_t, vme_datasize_t,
               vme_swap_t, int, vme_size_t, vme_addr_t, int, bus_dmamap_t *);
   void    mvmebus_dmamap_destroy(void *, bus_dmamap_t);
   int     mvmebus_dmamap_load(bus_dma_tag_t, bus_dmamap_t,
               void *, bus_size_t, struct proc *, int);
   int     mvmebus_dmamap_load_mbuf(bus_dma_tag_t,
               bus_dmamap_t, struct mbuf *, int);
   int     mvmebus_dmamap_load_uio(bus_dma_tag_t,
               bus_dmamap_t, struct uio *, int);
   int     mvmebus_dmamap_load_raw(bus_dma_tag_t,
               bus_dmamap_t, bus_dma_segment_t *, int, bus_size_t, int);
   void    mvmebus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t);
   void    mvmebus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t,
               bus_size_t, int);
   
   int     mvmebus_dmamem_alloc(void *, vme_size_t, vme_am_t, vme_datasize_t,
               vme_swap_t, bus_dma_segment_t *, int, int *, int);
   void    mvmebus_dmamem_free(void *, bus_dma_segment_t *, int);
   int     mvmebus_dmamem_map(bus_dma_tag_t, bus_dma_segment_t *, int,
               size_t, void **, int);
   void    mvmebus_dmamem_unmap(bus_dma_tag_t, void *, size_t);
   paddr_t mvmebus_dmamem_mmap(bus_dma_tag_t, bus_dma_segment_t *, int,
               off_t, int, int);
   
   extern vme_am_t _mvmebus_am_cap[];
   extern const char *mvmebus_irq_name[];
   
   #endif /* _MVME_MVMEBUS_H */

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