FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/uhavar.h

     /*      $NetBSD: uhavar.h,v 1.15 2008/04/28 20:23:51 martin Exp $       */
     
     /*-
      * Copyright (c) 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
      * Simulation Facility, NASA Ames Research Center.
     *
     * 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.
     */
    
    #include <sys/queue.h>
    
    #define UHA_MSCP_MAX    32      /* store up to 32 MSCPs at one time */
    #define MSCP_HASH_SIZE  32      /* hash table size for phystokv */
    #define MSCP_HASH_SHIFT 9
    #define MSCP_HASH(x)    ((((long)(x))>>MSCP_HASH_SHIFT) & (MSCP_HASH_SIZE - 1))
    
    struct uha_softc {
            struct device sc_dev;
    
            bus_space_tag_t sc_iot;
            bus_space_handle_t sc_ioh;
            bus_dma_tag_t   sc_dmat;
            void *sc_ih;
    
            int sc_dmaflags;        /* bus-specific DMA map creation flags */
    
            void (*start_mbox)(struct uha_softc *, struct uha_mscp *);
            int (*poll)(struct uha_softc *, struct scsipi_xfer *, int);
            void (*init)(struct uha_softc *);
    
            bus_dmamap_t sc_dmamap_mscp;    /* maps the mscps */
            struct uha_mscp *sc_mscps;      /* all our mscps */
    
            struct uha_mscp *sc_mscphash[MSCP_HASH_SIZE];
            TAILQ_HEAD(, uha_mscp) sc_free_mscp;
            int sc_nummscps;
    
            struct scsipi_adapter sc_adapter;
            struct scsipi_channel sc_channel;
    };
    
    /*
     * Offset of an MSCP from the beginning of the MSCP DMA mapping.
     */
    #define UHA_MSCP_OFF(m) (((u_long)(m)) - ((u_long)&sc->sc_mscps[0]))
    
    struct uha_probe_data {
            int sc_irq, sc_drq;
            int sc_scsi_dev;
    };
    
    void    uha_attach(struct uha_softc *, struct uha_probe_data *);
    void    uha_timeout(void *arg);
    struct  uha_mscp *uha_mscp_phys_kv(struct uha_softc *, u_long);
    void    uha_done(struct uha_softc *, struct uha_mscp *);

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