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z8530var.h revision 1.3 
      1  1.2  gwr /*	$NetBSD: z8530var.h,v 1.3 1996/01/30 22:35:04 gwr 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  1.2  gwr /*
     51  1.3  gwr  * Functions to read and write individual registers in a channel.
     52  1.3  gwr  * The ZS chip requires a 1.6 uSec. recovery time between accesses,
     53  1.3  gwr  * and the Sun3 hardware does NOT take care of this for you.
     54  1.3  gwr  * The delay is now handled inside the chip access functions.
     55  1.3  gwr  * These could be inlines, but with the delay, speed is moot.
     56  1.2  gwr  */
     57  1.2  gwr 
     58  1.3  gwr u_char zs_read_reg __P((struct zs_chanstate *cs, u_char reg));
     59  1.3  gwr u_char zs_read_csr __P((struct zs_chanstate *cs));
     60  1.3  gwr u_char zs_read_data __P((struct zs_chanstate *cs));
     61  1.3  gwr 
     62  1.3  gwr void  zs_write_reg __P((struct zs_chanstate *cs, u_char reg, u_char val));
     63  1.3  gwr void  zs_write_csr __P((struct zs_chanstate *cs, u_char val));
     64  1.3  gwr void  zs_write_data __P((struct zs_chanstate *cs, u_char val));
     65  1.3  gwr 
     66  1.2  gwr 
     67  1.2  gwr /*
     68  1.2  gwr  * How to request a "soft" interrupt.
     69  1.2  gwr  * This could be a macro if you like.
     70  1.2  gwr  */
     71  1.2  gwr void zsc_req_softint __P((struct zsc_softc *zsc));
     72  1.2  gwr 
     73  1.2  gwr /* Handle user request to enter kernel debugger. */
     74  1.2  gwr void zs_abort();
     75  1.2  gwr 
     76  1.2  gwr /*
     77  1.2  gwr  * Some warts needed by z8530tty.c -
     78  1.2  gwr  * The default parity REALLY needs to be the same as the PROM uses,
     79  1.2  gwr  * or you can not see messages done with printf during boot-up...
     80  1.2  gwr  */
     81  1.2  gwr #define	ZSTTY_MAJOR 	12		/* XXX */
     82  1.2  gwr #define	ZSTTY_DEF_CFLAG 	(CREAD | CS8 | HUPCL)
     83