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z8530var.h revision 1.4 
      1 /*	$NetBSD: z8530var.h,v 1.4 1996/10/13 03:21:32 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1994 Gordon W. Ross
      5  * Copyright (c) 1992, 1993
      6  *	The Regents of the University of California.  All rights reserved.
      7  *
      8  * This software was developed by the Computer Systems Engineering group
      9  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
     10  * contributed to Berkeley.
     11  *
     12  * All advertising materials mentioning features or use of this software
     13  * must display the following acknowledgement:
     14  *	This product includes software developed by the University of
     15  *	California, Lawrence Berkeley Laboratory.
     16  *
     17  * Redistribution and use in source and binary forms, with or without
     18  * modification, are permitted provided that the following conditions
     19  * are met:
     20  * 1. Redistributions of source code must retain the above copyright
     21  *    notice, this list of conditions and the following disclaimer.
     22  * 2. Redistributions in binary form must reproduce the above copyright
     23  *    notice, this list of conditions and the following disclaimer in the
     24  *    documentation and/or other materials provided with the distribution.
     25  * 3. All advertising materials mentioning features or use of this software
     26  *    must display the following acknowledgement:
     27  *	This product includes software developed by the University of
     28  *	California, Berkeley and its contributors.
     29  * 4. Neither the name of the University nor the names of its contributors
     30  *    may be used to endorse or promote products derived from this software
     31  *    without specific prior written permission.
     32  *
     33  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     34  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     35  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     36  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     37  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     38  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     39  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     40  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     41  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     42  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     43  * SUCH DAMAGE.
     44  *
     45  *	@(#)zsvar.h	8.1 (Berkeley) 6/11/93
     46  */
     47 
     48 #include <arch/mac68k/dev/z8530sc.h>
     49 #include <arch/mac68k/dev/z8530tty.h>
     50 
     51 /*
     52  * Functions to read and write individual registers in a channel.
     53  * The ZS chip requires a 1.6 uSec. recovery time between accesses,
     54  * and the Sun3 hardware does NOT take care of this for you.
     55  * MacII hardware DOES dake care of the delay for us. :-)
     56  */
     57 
     58 u_char zs_read_reg __P((struct zs_chanstate *cs, u_char reg));
     59 u_char zs_read_csr __P((struct zs_chanstate *cs));
     60 u_char zs_read_data __P((struct zs_chanstate *cs));
     61 
     62 void  zs_write_reg __P((struct zs_chanstate *cs, u_char reg, u_char val));
     63 void  zs_write_csr __P((struct zs_chanstate *cs, u_char val));
     64 void  zs_write_data __P((struct zs_chanstate *cs, u_char val));
     65 
     66 /*
     67  * abort detection on console will now timeout after iterating on a loop
     68  * the following # of times. Cheep hack. Also, abort detection is turned
     69  * off after a timeout (i.e. maybe there's not a terminal hooked up).
     70  */
     71 #define ZSABORT_DELAY 3000000
     72 
     73 /*
     74  * How to request a "soft" interrupt.
     75  * This could be a macro if you like.
     76  */
     77 void zsc_req_softint __P((struct zsc_softc *zsc));
     78 
     79 /* Handle user request to enter kernel debugger. */
     80 void	zs_abort __P((struct zstty_softc *zst));
     81 
     82 /* Hook for MD ioctl support */
     83 int	zsmdioctl __P((struct tty *tp, u_long com, caddr_t data, int flag,
     84 	    struct proc *p));
     85 
     86 /* Clean up at end of tty attach */
     87 void zstty_mdattach __P((struct zsc_softc *zsc, struct zstty_softc *zst,
     88 	    struct zs_chanstate *cs, struct tty *tp));
     89 
     90 /* Callback for "external" clock sources */
     91 void zsmd_setclock  __P((struct zs_chanstate *cs));
     92 
     93 /*
     94  * Some warts needed by z8530tty.c -
     95  */
     96 #define	ZSTTY_MAJOR 	12		/* XXX */
     97 #undef	ZSTTY_DEF_CFLAG
     98 #define	ZSTTY_DEF_CFLAG 	(CREAD | CS8 | HUPCL)
     99 
    100 #define	ZSTTY_RAW_CFLAG (CS8 | CREAD | HUPCL )
    101 #define	ZSTTY_RAW_IFLAG (IXANY | IMAXBEL)
    102 #define	ZSTTY_RAW_LFLAG (ECHOE|ECHOKE|ECHOCTL)
    103 #define	ZSTTY_RAW_OFLAG (ONLCR | OXTABS)
    104 /* Above taken from looking at a tty after a stty raw */
    105 
    106 /* Booter flags interface */
    107 #define ZSMAC_RAW	0x01
    108 #define ZSMAC_LOCALTALK	0x02
    109 
    110 #define zsprintf printf
    111