sys/arch/acorn32/include/podulebus_machdep.h

   1 /* $NetBSD: podulebus_machdep.h,v 1.1 2001/10/05 22:27:52 reinoud Exp $ */
   2
   3 /*
   4  * Copyright (c) 1995 Mark Brinicombe.
   5  * Copyright (c) 1995 Brini.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by Brini.
  19  * 4. The name of the company nor the name of the author may be used to
  20  *    endorse or promote products derived from this software without specific
  21  *    prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
  24  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  25  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  26  * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  27  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  28  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  29  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  * RiscBSD kernel project
  36  *
  37  * podulebus.h
  38  *
  39  * Podule bus header file
  40  *
  41  * Created      : 26/04/95
  42  */
  43
  44 #include <sys/param.h>
  45 #include <machine/bus.h>
  46 #include <machine/io.h>
  47
  48 /* Define the structure used to describe a podule */
  49
  50 #define PODULE_DESCRIPTION_LENGTH       63
  51
  52 typedef struct {
  53         /* The podule header, read from the on board ROM */
  54
  55         u_char flags0;
  56         u_char flags1;
  57         u_char reserved;
  58         u_short product;
  59         u_short manufacturer;
  60         u_char country;
  61         u_int irq_addr;
  62         u_int irq_mask;
  63         u_int fiq_addr;
  64         u_int fiq_mask;
  65
  66         /* The base addresses for this podule */
  67
  68         u_int fast_base;
  69         u_int medium_base;
  70         u_int slow_base;
  71         u_int sync_base;
  72         u_int mod_base;
  73         u_int easi_base;
  74
  75         /* Flags */
  76
  77         int podulenum;
  78         int slottype;
  79         int attached;
  80
  81         /* Other info */
  82
  83         char description[PODULE_DESCRIPTION_LENGTH + 1];
  84         u_int (*read_rom)(u_int, int);
  85
  86         /* podule specific information provided by podulebus */
  87
  88         int interrupt;
  89
  90         int dma_channel;
  91         int dma_interrupt;
  92 } podule_t;
  93
  94 #define PODULE_FLAGS_CD 0x01
  95 #define PODULE_FLAGS_IS 0x02
  96
  97 #define SLOT_NONE 0x00
  98 #define SLOT_POD  0x01
  99 #define SLOT_NET  0x02
 100
 101 typedef int     podulebus_intr_handle_t;
 102
 103 #define podulebus_attach_args podule_attach_args
 104
 105 struct podule_attach_args {
 106         podule_t *pa_podule;            /* podule descriptor */
 107         int pa_podule_number;           /* podule number */
 108         int pa_slottype;                /* podule slot type */
 109         bus_space_tag_t pa_iot;         /* bus space tag */
 110
 111 #define pa_easi_t       pa_iot
 112 #define pa_mod_t        pa_iot
 113 #define pa_fast_t       pa_iot
 114 #define pa_medium_t     pa_iot
 115 #define pa_slow_t       pa_iot
 116 #define pa_sync_t       pa_iot
 117
 118 #define pa_easi_base    pa_podule->easi_base
 119 #define pa_mod_base     pa_podule->mod_base
 120 #define pa_fast_base    pa_podule->fast_base
 121 #define pa_medium_base  pa_podule->medium_base
 122 #define pa_slow_base    pa_podule->slow_base
 123 #define pa_sync_base    pa_podule->sync_base
 124
 125         podulebus_intr_handle_t pa_ih;  /* interrupt handle */
 126
 127 #define pa_manufacturer pa_podule->manufacturer
 128 #define pa_product      pa_podule->product
 129 #define pa_descr        pa_podule->description
 130 };
 131
 132 /* Useful macros */
 133
 134 /* EASI space cycle control */
 135
 136
 137 #define IS_PODULE(pa, man, prod)        \
 138         (pa->pa_manufacturer == man && pa->pa_product == prod)
 139
 140
 141
 142 #define EASI_CYCLE_TYPE_A       0x00
 143 #define EASI_CYCLE_TYPE_C       0x01
 144 #define set_easi_cycle_type(podule, type) \
 145         IOMD_WRITE_BYTE(IOMD_ECTCR, (IOMD_READ_BYTE(IOMD_ECTCR) & ~(1 << podule)) | (1 << type))
 146
 147 #ifdef _KERNEL
 148
 149 /* Array of podule structures, one per possible podule */
 150
 151 extern podule_t podules[MAX_PODULES + MAX_NETSLOTS];
 152
 153 int matchpodule(struct podule_attach_args *pa,
 154     int manufacturer, int product, int required_slot);
 155
 156 void netslot_ea(u_int8_t *buffer);
 157
 158 extern void *podulebus_irq_establish(podulebus_intr_handle_t, int,
 159     int (*)(void *), void *, struct evcnt *);
 160 extern void podulebus_shift_tag(bus_space_tag_t, u_int,
 161     bus_space_tag_t *);
 162
 163 /* Used internally by the podulebus code */
 164 extern void netslotscan(struct device *);
 165 extern void poduleexamine(podule_t *, struct device *, int);
 166
 167 #endif
 168
 169 /* End of podulebus.h */