sys/dev/sbus/sbusvar.h

   1 /*      $NetBSD: sbusvar.h,v 1.26 2008/05/17 18:09:03 macallan Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Paul Kranenburg.
   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 _SBUS_VAR_H
  33 #define _SBUS_VAR_H
  34
  35 #if defined(_KERNEL_OPT) && (defined(__sparc__) || defined(__sparc64__))
  36 #include "opt_sparc_arch.h"
  37 #endif
  38
  39 #include <machine/bsd_openprom.h>
  40
  41 struct sbus_softc;
  42
  43 typedef u_int32_t sbus_slot_t;
  44 typedef u_int32_t sbus_offset_t;
  45
  46 /*
  47  * Sbus driver attach arguments.
  48  */
  49 struct sbus_attach_args {
  50         int             sa_placeholder; /* for obio attach args sharing */
  51         bus_space_tag_t sa_bustag;
  52         bus_dma_tag_t   sa_dmatag;
  53         char            *sa_name;       /* PROM node name */
  54         int             sa_node;        /* PROM handle */
  55         struct openprom_addr *sa_reg;   /* Sbus register space for device */
  56         int             sa_nreg;        /* Number of Sbus register spaces */
  57 #define sa_slot         sa_reg[0].oa_space
  58 #define sa_offset       sa_reg[0].oa_base
  59 #define sa_size         sa_reg[0].oa_size
  60
  61         struct openprom_intr *sa_intr;  /* Sbus interrupts for device */
  62         int             sa_nintr;       /* Number of interrupts */
  63 #define sa_pri          sa_intr[0].oi_pri
  64
  65         u_int32_t       *sa_promvaddrs;/* PROM-supplied virtual addresses -- 32-bit */
  66         int             sa_npromvaddrs; /* Number of PROM VAs */
  67 #define sa_promvaddr    sa_promvaddrs[0]
  68         int             sa_frequency;   /* SBus clockrate */
  69 };
  70
  71 /* sbus_attach_internal() is also used from obio.c */
  72 void    sbus_attach_common(struct sbus_softc *, const char *, int,
  73                                 const char * const *);
  74 int     sbus_print(void *, const char *);
  75
  76 int     sbus_setup_attach_args(
  77                 struct sbus_softc *,
  78                 bus_space_tag_t,
  79                 bus_dma_tag_t,
  80                 int,                    /*node*/
  81                 struct sbus_attach_args *);
  82
  83 void    sbus_destroy_attach_args(struct sbus_attach_args *);
  84
  85 #define sbus_bus_map(tag, slot, offset, sz, flags, hp) \
  86         bus_space_map(tag, BUS_ADDR(slot,offset), sz, flags, hp)
  87 bus_addr_t      sbus_bus_addr(bus_space_tag_t, u_int, u_int);
  88 void    sbus_promaddr_to_handle(bus_space_tag_t, u_int,
  89         bus_space_handle_t *);
  90
  91 #if notyet
  92 /* variables per Sbus */
  93 struct sbus_softc {
  94         device_t sc_dev;                /* base device */
  95         bus_space_tag_t sc_bustag;
  96         bus_dma_tag_t   sc_dmatag;
  97         int     sc_clockfreq;           /* clock frequency (in Hz) */
  98         struct  openprom_range *sc_range;
  99         int     sc_nrange;
 100         int     sc_burst;               /* burst transfer sizes supported */
 101         /* machdep stuff follows here */
 102         int     *sc_intr2ipl;           /* Interrupt level translation */
 103 };
 104 #endif
 105
 106
 107 /*
 108  * PROM-reported DMA burst sizes for the SBus
 109  */
 110 #define SBUS_BURST_1    0x1
 111 #define SBUS_BURST_2    0x2
 112 #define SBUS_BURST_4    0x4
 113 #define SBUS_BURST_8    0x8
 114 #define SBUS_BURST_16   0x10
 115 #define SBUS_BURST_32   0x20
 116 #define SBUS_BURST_64   0x40
 117
 118 /* We use #defined(SUN4*) here while the ports are in flux */
 119 #if defined(SUN4) || defined(SUN4C) || defined(SUN4M) || defined(SUN4D)
 120 #include <sparc/dev/sbusvar.h>
 121 #elif defined(SUN4U)
 122 #include <sparc64/dev/sbusvar.h>
 123 #endif
 124
 125 #endif /* _SBUS_VAR_H */