sys/arch/next68k/include/z8530var.h

   1 /*      $NetBSD: z8530var.h,v 1.7 2007/11/07 15:56:12 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 #define splzs() splserial()
  44 #define IPL_ZS  IPL_SERIAL
  45
  46 #include <dev/ic/z8530sc.h>
  47
  48 struct zsc_softc {
  49         device_t zsc_dev;               /* required first: base device */
  50         struct  zs_chanstate *zsc_cs[2];        /* channel A and B soft state */
  51         /* Machine-dependent part follows... */
  52         struct  evcnt zsc_intrcnt;              /* count interrupts */
  53         struct zs_chanstate  zsc_cs_store[2];
  54         void    *zsc_softintr_cookie;
  55 };
  56
  57 /*
  58  * Functions to read and write individual registers in a channel.
  59  */
  60
  61 uint8_t zs_read_reg(struct zs_chanstate *, uint8_t);
  62 uint8_t zs_read_csr(struct zs_chanstate *);
  63 uint8_t zs_read_data(struct zs_chanstate *);
  64
  65 void  zs_write_reg(struct zs_chanstate *, uint8_t, uint8_t);
  66 void  zs_write_csr(struct zs_chanstate *, uint8_t);
  67 void  zs_write_data(struct zs_chanstate *, uint8_t);
  68
  69 /* The sparc has splzs() in psl.h */
  70
  71 /* We want to call it "zs" instead of "zsc" (sigh). */
  72 #ifndef ZSCCF_CHANNEL
  73 #define ZSCCF_CHANNEL 0
  74 #define ZSCCF_CHANNEL_DEFAULT -1
  75 #endif