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

     /*      $NetBSD: pcctwovar.h,v 1.4 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_PCCTWOVAR_H
    #define _MVME_PCCTWOVAR_H
    
    /*
     * Structure used to attach PCC devices.
     */
    struct pcctwo_attach_args {
            const char      *pa_name;       /* name of device */
            int             pa_ipl;         /* interrupt level */
            bus_dma_tag_t   pa_dmat;        /* DMA tag */
            bus_space_tag_t pa_bust;        /* Bus tag */
            bus_addr_t      pa_offset;      /* Offset with 'Bus tag' bus space */
    
            bus_addr_t      _pa_base;
    };
    
    /*
     * Structure used to describe a device for autoconfiguration purposes.
     */
    struct pcctwo_device {
            const char *pcc_name;   /* name of device (e.g. "clock") */
            bus_addr_t pcc_offset;  /* offset from PCC2 base */
    };
    
    /*
     * Macroes to make life easy when converting vector offset to interrupt
     * control register, and how to initialise the ICSR.
     */
    #define VEC2ICSR(r,v)           ((r) | (((v) | PCCTWO_ICR_IEN) << 8))
    #define VEC2ICSR_REG(x)         ((x) & 0xff)
    #define VEC2ICSR_INIT(x)        ((x) >> 8)
    
    /* Shorthand for locators. */
    #include "locators.h"
    #define pcctwocf_ipl    cf_loc[PCCTWOCF_IPL]
    
    /*
     * PCCChip2 driver's soft state structure
     */
    struct pcctwo_softc {
            struct device           sc_dev;
            bus_space_tag_t         sc_bust;        /* PCCChip2's register tag */
            bus_space_handle_t      sc_bush;        /* PCCChip2's register handle */
            bus_dma_tag_t           sc_dmat;        /* PCCChip2's dma tag (unused)*/
            int                     *sc_vec2icsr;   /* Translate vector to ICSR */
            int                     sc_vecbase;
            void                    *sc_isrcookie;
            void                    (*sc_isrlink)(void *, int (*)(void *), void *,
                                        int, int, struct evcnt *);
            void                    (*sc_isrunlink)(void *, int);
            struct evcnt *          (*sc_isrevcnt)(void *, int);
    #if defined(MVME162) || defined(MVME172)
            struct evcnt            sc_evcnt;
    #endif
    };
    
    extern struct pcctwo_softc *sys_pcctwo;
    
    extern void pcctwo_init(struct pcctwo_softc *,
                    const struct pcctwo_device *, int);
    extern struct evcnt *pcctwointr_evcnt(int);
    extern void pcctwointr_establish(int, int (*)(void *), int, void *,
                    struct evcnt *);
    extern void pcctwointr_disestablish(int);
    
    #endif  /* _MVME_PCCTWOVAR_H */

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