sys/arch/x68k/include/z8530var.h

   1 /*    $NetBSD: z8530var.h,v 1.8 2007/11/07 15:56:13 ad Exp $ */
   2
   3 /*
   4  * Copyright (c) 1992, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This software was developed by the Computer Systems Engineering group
   8  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
   9  * contributed to Berkeley.
  10  *
  11  * All advertising materials mentioning features or use of this software
  12  * must display the following acknowledgement:
  13  *      This product includes software developed by the University of
  14  *      California, Lawrence Berkeley Laboratory.
  15  *
  16  * Redistribution and use in source and binary forms, with or without
  17  * modification, are permitted provided that the following conditions
  18  * are met:
  19  * 1. Redistributions of source code must retain the above copyright
  20  *    notice, this list of conditions and the following disclaimer.
  21  * 2. Redistributions in binary form must reproduce the above copyright
  22  *    notice, this list of conditions and the following disclaimer in the
  23  *    documentation and/or other materials provided with the distribution.
  24  * 3. Neither the name of the University nor the names of its contributors
  25  *    may be used to endorse or promote products derived from this software
  26  *    without specific prior written permission.
  27  *
  28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  38  * SUCH DAMAGE.
  39  *
  40  *      @(#)zsvar.h     8.1 (Berkeley) 6/11/93
  41  */
  42
  43 /*
  44  * Copyright (c) 1998 Minoura Makoto
  45  * All rights reserved.
  46  *
  47  * Redistribution and use in source and binary forms, with or without
  48  * modification, are permitted provided that the following conditions
  49  * are met:
  50  * 1. Redistributions of source code must retain the above copyright
  51  *    notice, this list of conditions and the following disclaimer.
  52  * 2. Redistributions in binary form must reproduce the above copyright
  53  *    notice, this list of conditions and the following disclaimer in the
  54  *    documentation and/or other materials provided with the distribution.
  55  * 3. All advertising materials mentioning features or use of this software
  56  *    must display the following acknowledgement:
  57  *      This product includes software developed by Minoura Makoto.
  58  * 4. The name of the author may not be used to endorse or promote products
  59  *    derived from this software without specific prior written permission
  60  *
  61  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  62  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  63  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  64  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  65  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  66  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  67  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  68  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  69  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  70  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  71  */
  72
  73 /*
  74  * Copyright (c) 1994 Gordon W. Ross
  75  *
  76  * This software was developed by the Computer Systems Engineering group
  77  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
  78  * contributed to Berkeley.
  79  *
  80  * All advertising materials mentioning features or use of this software
  81  * must display the following acknowledgement:
  82  *      This product includes software developed by the University of
  83  *      California, Lawrence Berkeley Laboratory.
  84  *
  85  * Redistribution and use in source and binary forms, with or without
  86  * modification, are permitted provided that the following conditions
  87  * are met:
  88  * 1. Redistributions of source code must retain the above copyright
  89  *    notice, this list of conditions and the following disclaimer.
  90  * 2. Redistributions in binary form must reproduce the above copyright
  91  *    notice, this list of conditions and the following disclaimer in the
  92  *    documentation and/or other materials provided with the distribution.
  93  * 3. All advertising materials mentioning features or use of this software
  94  *    must display the following acknowledgement:
  95  *      This product includes software developed by the University of
  96  *      California, Berkeley and its contributors.
  97  * 4. Neither the name of the University nor the names of its contributors
  98  *    may be used to endorse or promote products derived from this software
  99  *    without specific prior written permission.
 100  *
 101  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 102  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 103  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 104  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 105  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 106  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 107  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 108  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 109  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 110  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 111  * SUCH DAMAGE.
 112  *
 113  *      @(#)zsvar.h     8.1 (Berkeley) 6/11/93
 114  */
 115
 116 #include <machine/bus.h>
 117 #include <dev/ic/z8530sc.h>
 118
 119
 120 #define ZS_DELAY()                      delay(2)
 121
 122 /* The layout of this is hardware-dependent (padding, order). */
 123 struct zschan {
 124         uint8_t         zc_xxx0;
 125         volatile uint8_t zc_csr;        /* ctrl,status, and indirect access */
 126         uint8_t         zc_xxx1;
 127         volatile uint8_t zc_data;       /* data */
 128 };
 129 struct zsdevice {
 130         /* Yes, they are backwards. */
 131         struct  zschan zs_chan_b;
 132         struct  zschan zs_chan_a;
 133 };
 134
 135 struct zsc_softc {
 136         device_t zsc_dev;               /* required first: base device */
 137         struct  zs_chanstate *zsc_cs[2];        /* channel A and B soft state */
 138         /* Machine-dependent part follows... */
 139         struct zs_chanstate  zsc_cs_store[2];
 140         struct zsdevice *zsc_addr;
 141         void *zsc_softintr_cookie;
 142 };
 143
 144 /*
 145  * Functions to read and write individual registers in a channel.
 146  * The ZS chip requires a 1.6 uSec. recovery time between accesses,
 147  * and the Sun3 hardware does NOT take care of this for you.
 148  * The delay is now handled inside the chip access functions.
 149  * These could be inlines, but with the delay, speed is moot.
 150  */
 151
 152 uint8_t zs_read_reg(struct zs_chanstate *, uint8_t);
 153 uint8_t zs_read_csr(struct zs_chanstate *);
 154 uint8_t zs_read_data(struct zs_chanstate *);
 155
 156 void  zs_write_reg(struct zs_chanstate *, uint8_t, uint8_t);
 157 void  zs_write_csr(struct zs_chanstate *, uint8_t);
 158 void  zs_write_data(struct zs_chanstate *, uint8_t);
 159
 160 /*
 161  * Physical address for built-in ZS.
 162  */
 163 #define ZSCN_PHYSADDR   0xe98004 /* for serial console */
 164 #define ZSMS_PHYSADDR   0xe98000 /* for mouse */
 165
 166 #define IPL_ZS  IPL_SERIAL