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z8530var.h revision 1.7.20.1 
      1  1.7.20.1  nathanw /*	$NetBSD: z8530var.h,v 1.7.20.1 2002/04/01 07:43:23 nathanw Exp $	*/
      2       1.2      gwr 
      3       1.2      gwr /*
      4       1.2      gwr  * Copyright (c) 1994 Gordon W. Ross
      5       1.2      gwr  * Copyright (c) 1992, 1993
      6       1.2      gwr  *	The Regents of the University of California.  All rights reserved.
      7       1.2      gwr  *
      8       1.2      gwr  * This software was developed by the Computer Systems Engineering group
      9       1.2      gwr  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
     10       1.2      gwr  * contributed to Berkeley.
     11       1.2      gwr  *
     12       1.2      gwr  * All advertising materials mentioning features or use of this software
     13       1.2      gwr  * must display the following acknowledgement:
     14       1.2      gwr  *	This product includes software developed by the University of
     15       1.2      gwr  *	California, Lawrence Berkeley Laboratory.
     16       1.2      gwr  *
     17       1.2      gwr  * Redistribution and use in source and binary forms, with or without
     18       1.2      gwr  * modification, are permitted provided that the following conditions
     19       1.2      gwr  * are met:
     20       1.2      gwr  * 1. Redistributions of source code must retain the above copyright
     21       1.2      gwr  *    notice, this list of conditions and the following disclaimer.
     22       1.2      gwr  * 2. Redistributions in binary form must reproduce the above copyright
     23       1.2      gwr  *    notice, this list of conditions and the following disclaimer in the
     24       1.2      gwr  *    documentation and/or other materials provided with the distribution.
     25       1.2      gwr  * 3. All advertising materials mentioning features or use of this software
     26       1.2      gwr  *    must display the following acknowledgement:
     27       1.2      gwr  *	This product includes software developed by the University of
     28       1.2      gwr  *	California, Berkeley and its contributors.
     29       1.2      gwr  * 4. Neither the name of the University nor the names of its contributors
     30       1.2      gwr  *    may be used to endorse or promote products derived from this software
     31       1.2      gwr  *    without specific prior written permission.
     32       1.2      gwr  *
     33       1.2      gwr  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     34       1.2      gwr  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     35       1.2      gwr  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     36       1.2      gwr  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     37       1.2      gwr  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     38       1.2      gwr  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     39       1.2      gwr  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     40       1.2      gwr  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     41       1.2      gwr  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     42       1.2      gwr  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     43       1.2      gwr  * SUCH DAMAGE.
     44       1.2      gwr  *
     45       1.2      gwr  *	@(#)zsvar.h	8.1 (Berkeley) 6/11/93
     46       1.2      gwr  */
     47       1.2      gwr 
     48       1.2      gwr #include <dev/ic/z8530sc.h>
     49       1.2      gwr 
     50       1.6      gwr struct zsc_softc {
     51       1.6      gwr 	struct	device zsc_dev;		/* required first: base device */
     52       1.6      gwr 	struct	zs_chanstate *zsc_cs[2];	/* channel A and B soft state */
     53       1.6      gwr 	/* Machine-dependent part follows... */
     54       1.6      gwr 	struct zs_chanstate  zsc_cs_store[2];
     55       1.6      gwr };
     56       1.6      gwr 
     57       1.2      gwr /*
     58       1.3      gwr  * Functions to read and write individual registers in a channel.
     59       1.3      gwr  * The ZS chip requires a 1.6 uSec. recovery time between accesses,
     60       1.3      gwr  * and the Sun3 hardware does NOT take care of this for you.
     61       1.3      gwr  * The delay is now handled inside the chip access functions.
     62       1.3      gwr  * These could be inlines, but with the delay, speed is moot.
     63       1.2      gwr  */
     64       1.2      gwr 
     65       1.3      gwr u_char zs_read_reg __P((struct zs_chanstate *cs, u_char reg));
     66       1.3      gwr u_char zs_read_csr __P((struct zs_chanstate *cs));
     67       1.3      gwr u_char zs_read_data __P((struct zs_chanstate *cs));
     68       1.3      gwr 
     69       1.3      gwr void  zs_write_reg __P((struct zs_chanstate *cs, u_char reg, u_char val));
     70       1.3      gwr void  zs_write_csr __P((struct zs_chanstate *cs, u_char val));
     71       1.3      gwr void  zs_write_data __P((struct zs_chanstate *cs, u_char val));
     72       1.3      gwr 
     73       1.6      gwr /* Zilog Serial hardware interrupts (hard-wired at 6) */
     74       1.6      gwr #define splzs()         spl6()
     75       1.2      gwr 
     76       1.7      chs /* We want to call it "zs" instead of "zsc" (sigh). */
     77       1.7      chs #ifndef ZSCCF_CHANNEL
     78       1.7      chs #define ZSCCF_CHANNEL 0
     79       1.7      chs #define ZSCCF_CHANNEL_DEFAULT -1
     80       1.7      chs #endif
     81  1.7.20.1  nathanw 
     82  1.7.20.1  nathanw #undef cn_trap
     83  1.7.20.1  nathanw #define cn_trap() zs_abort(NULL)
     84