sys/dev/mvme/pcctwovar.h

   1 /*      $NetBSD: pcctwovar.h,v 1.3 2005/12/11 12:22:48 christos Exp $   */
   2
   3 /*-
   4  * Copyright (c) 2000, 2002 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Steve C. Woodford
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _MVME_PCCTWOVAR_H
  33 #define _MVME_PCCTWOVAR_H
  34
  35 /*
  36  * Structure used to attach PCC devices.
  37  */
  38 struct pcctwo_attach_args {
  39         const char      *pa_name;       /* name of device */
  40         int             pa_ipl;         /* interrupt level */
  41         bus_dma_tag_t   pa_dmat;        /* DMA tag */
  42         bus_space_tag_t pa_bust;        /* Bus tag */
  43         bus_addr_t      pa_offset;      /* Offset with 'Bus tag' bus space */
  44
  45         bus_addr_t      _pa_base;
  46 };
  47
  48 /*
  49  * Structure used to describe a device for autoconfiguration purposes.
  50  */
  51 struct pcctwo_device {
  52         const char *pcc_name;   /* name of device (e.g. "clock") */
  53         bus_addr_t pcc_offset;  /* offset from PCC2 base */
  54 };
  55
  56 /*
  57  * Macroes to make life easy when converting vector offset to interrupt
  58  * control register, and how to initialise the ICSR.
  59  */
  60 #define VEC2ICSR(r,v)           ((r) | (((v) | PCCTWO_ICR_IEN) << 8))
  61 #define VEC2ICSR_REG(x)         ((x) & 0xff)
  62 #define VEC2ICSR_INIT(x)        ((x) >> 8)
  63
  64 /* Shorthand for locators. */
  65 #include "locators.h"
  66 #define pcctwocf_ipl    cf_loc[PCCTWOCF_IPL]
  67
  68 /*
  69  * PCCChip2 driver's soft state structure
  70  */
  71 struct pcctwo_softc {
  72         struct device           sc_dev;
  73         bus_space_tag_t         sc_bust;        /* PCCChip2's register tag */
  74         bus_space_handle_t      sc_bush;        /* PCCChip2's register handle */
  75         bus_dma_tag_t           sc_dmat;        /* PCCChip2's dma tag (unused)*/
  76         int                     *sc_vec2icsr;   /* Translate vector to ICSR */
  77         int                     sc_vecbase;
  78         void                    *sc_isrcookie;
  79         void                    (*sc_isrlink)(void *, int (*)(void *), void *,
  80                                     int, int, struct evcnt *);
  81         void                    (*sc_isrunlink)(void *, int);
  82         struct evcnt *          (*sc_isrevcnt)(void *, int);
  83 #if defined(MVME162) || defined(MVME172)
  84         struct evcnt            sc_evcnt;
  85 #endif
  86 };
  87
  88 extern struct pcctwo_softc *sys_pcctwo;
  89
  90 extern void pcctwo_init(struct pcctwo_softc *,
  91                 const struct pcctwo_device *, int);
  92 extern struct evcnt *pcctwointr_evcnt(int);
  93 extern void pcctwointr_establish(int, int (*)(void *), int, void *,
  94                 struct evcnt *);
  95 extern void pcctwointr_disestablish(int);
  96
  97 #endif  /* _MVME_PCCTWOVAR_H */