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siopvar.h revision 1.1 
      1  1.1  mw /*
      2  1.1  mw  * Copyright (c) 1990 The Regents of the University of California.
      3  1.1  mw  * All rights reserved.
      4  1.1  mw  *
      5  1.1  mw  * This code is derived from software contributed to Berkeley by
      6  1.1  mw  * Van Jacobson of Lawrence Berkeley Laboratory.
      7  1.1  mw  *
      8  1.1  mw  * Redistribution and use in source and binary forms, with or without
      9  1.1  mw  * modification, are permitted provided that the following conditions
     10  1.1  mw  * are met:
     11  1.1  mw  * 1. Redistributions of source code must retain the above copyright
     12  1.1  mw  *    notice, this list of conditions and the following disclaimer.
     13  1.1  mw  * 2. Redistributions in binary form must reproduce the above copyright
     14  1.1  mw  *    notice, this list of conditions and the following disclaimer in the
     15  1.1  mw  *    documentation and/or other materials provided with the distribution.
     16  1.1  mw  * 3. All advertising materials mentioning features or use of this software
     17  1.1  mw  *    must display the following acknowledgement:
     18  1.1  mw  *	This product includes software developed by the University of
     19  1.1  mw  *	California, Berkeley and its contributors.
     20  1.1  mw  * 4. Neither the name of the University nor the names of its contributors
     21  1.1  mw  *    may be used to endorse or promote products derived from this software
     22  1.1  mw  *    without specific prior written permission.
     23  1.1  mw  *
     24  1.1  mw  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  1.1  mw  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  1.1  mw  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  1.1  mw  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  1.1  mw  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  1.1  mw  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  1.1  mw  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  1.1  mw  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  1.1  mw  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  1.1  mw  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  1.1  mw  * SUCH DAMAGE.
     35  1.1  mw  *
     36  1.1  mw  *	@(#)siopvar.h	7.1 (Berkeley) 5/8/90
     37  1.1  mw  */
     38  1.1  mw 
     39  1.1  mw struct siop_ds {			/* Data Structure */
     40  1.1  mw 	long	scsi_addr;		/* SCSI ID & sync */
     41  1.1  mw 	long	idlen;			/* Identify message */
     42  1.1  mw 	char	*idbuf;
     43  1.1  mw 	long	cmdlen;			/* SCSI command */
     44  1.1  mw 	char	*cmdbuf;
     45  1.1  mw 	long	stslen;			/* Status */
     46  1.1  mw 	char	*stsbuf;
     47  1.1  mw 	long	msglen;			/* Message */
     48  1.1  mw 	char	*msgbuf;
     49  1.1  mw 	long	sdtrolen;		/* Sync Data Transfer Request out */
     50  1.1  mw 	char	*sdtrobuf;
     51  1.1  mw 	long	sdtrilen;		/* Sync Data Transfer Request in */
     52  1.1  mw 	char	*sdtribuf;
     53  1.1  mw 	struct {
     54  1.1  mw 		long datalen;
     55  1.1  mw 		char *databuf;
     56  1.1  mw 	} chain[MAXPHYS/NBPG+1];
     57  1.1  mw };
     58  1.1  mw 
     59  1.1  mw struct	siop_softc {
     60  1.1  mw 	struct	amiga_ctlr *sc_ac;
     61  1.1  mw 	struct	devqueue sc_dq;
     62  1.1  mw 	struct	devqueue sc_sq;
     63  1.1  mw 
     64  1.1  mw 	/* should have one for each target? */
     65  1.1  mw 	u_char	sc_istat;
     66  1.1  mw 	u_char	sc_dstat;
     67  1.1  mw 	u_char	sc_sstat0;
     68  1.1  mw 	u_char	sc_sstat1;
     69  1.1  mw 	struct siop_ds sc_ds;
     70  1.1  mw 	u_char	sc_flags;
     71  1.1  mw 	u_char	sc_lun;
     72  1.1  mw 	u_long	sc_clock_freq;
     73  1.1  mw 	/* one for each target */
     74  1.1  mw 	struct syncpar {
     75  1.1  mw 	  u_char state;
     76  1.1  mw 	  u_char period, offset;
     77  1.1  mw 	} sc_sync[8];
     78  1.1  mw 	u_char	sc_slave;
     79  1.1  mw 	u_char	sc_scsi_addr;
     80  1.1  mw 	u_char	sc_stat[2];
     81  1.1  mw 	u_char	sc_msg[8];
     82  1.1  mw };
     83  1.1  mw 
     84  1.1  mw /* sc_flags */
     85  1.1  mw #define	SIOP_DMA	0x80	/* DMA I/O in progress */
     86  1.1  mw #define	SIOP_ALIVE	0x01	/* controller initialized */
     87  1.1  mw #define SIOP_SELECTED	0x04	/* bus is in selected state. Needed for
     88  1.1  mw 				   correct abort procedure. */
     89  1.1  mw 
     90  1.1  mw /* sync states */
     91  1.1  mw #define SYNC_START	0	/* no sync handshake started */
     92  1.1  mw #define SYNC_SENT	1	/* we sent sync request, no answer yet */
     93  1.1  mw #define SYNC_DONE	2	/* target accepted our (or inferior) settings,
     94  1.1  mw 				   or it rejected the request and we stay async */
     95