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scivar.h revision 1.3
      1  1.1  chopps /*
      2  1.1  chopps  * Copyright (c) 1990 The Regents of the University of California.
      3  1.1  chopps  * All rights reserved.
      4  1.1  chopps  *
      5  1.1  chopps  * This code is derived from software contributed to Berkeley by
      6  1.1  chopps  * Van Jacobson of Lawrence Berkeley Laboratory.
      7  1.1  chopps  *
      8  1.1  chopps  * Redistribution and use in source and binary forms, with or without
      9  1.1  chopps  * modification, are permitted provided that the following conditions
     10  1.1  chopps  * are met:
     11  1.1  chopps  * 1. Redistributions of source code must retain the above copyright
     12  1.1  chopps  *    notice, this list of conditions and the following disclaimer.
     13  1.1  chopps  * 2. Redistributions in binary form must reproduce the above copyright
     14  1.1  chopps  *    notice, this list of conditions and the following disclaimer in the
     15  1.1  chopps  *    documentation and/or other materials provided with the distribution.
     16  1.1  chopps  * 3. All advertising materials mentioning features or use of this software
     17  1.1  chopps  *    must display the following acknowledgement:
     18  1.1  chopps  *	This product includes software developed by the University of
     19  1.1  chopps  *	California, Berkeley and its contributors.
     20  1.1  chopps  * 4. Neither the name of the University nor the names of its contributors
     21  1.1  chopps  *    may be used to endorse or promote products derived from this software
     22  1.1  chopps  *    without specific prior written permission.
     23  1.1  chopps  *
     24  1.1  chopps  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  1.1  chopps  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  1.1  chopps  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  1.1  chopps  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  1.1  chopps  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  1.1  chopps  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  1.1  chopps  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  1.1  chopps  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  1.1  chopps  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  1.1  chopps  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  1.1  chopps  * SUCH DAMAGE.
     35  1.1  chopps  *
     36  1.1  chopps  *	@(#)scivar.h	7.1 (Berkeley) 5/8/90
     37  1.3  chopps  *	$Id: scivar.h,v 1.3 1994/05/29 04:50:24 chopps Exp $
     38  1.1  chopps  */
     39  1.3  chopps #ifndef _SCIVAR_H_
     40  1.3  chopps #define _SCIVAR_H_
     41  1.3  chopps 
     42  1.3  chopps struct	sci_pending {
     43  1.3  chopps 	TAILQ_ENTRY(sci_pending) link;
     44  1.3  chopps 	struct scsi_xfer *xs;
     45  1.3  chopps };
     46  1.3  chopps 
     47  1.1  chopps 
     48  1.1  chopps struct	sci_softc {
     49  1.3  chopps 	struct	device sc_dev;
     50  1.3  chopps 	struct	scsi_link sc_link;	/* proto for sub devices */
     51  1.3  chopps 	TAILQ_HEAD(,sci_pending) sc_xslist;
     52  1.3  chopps 	struct	sci_pending sc_xsstore[8][8];
     53  1.3  chopps 	struct	scsi_xfer *sc_xs;	/* transfer from high level code */
     54  1.1  chopps 
     55  1.2  chopps 	volatile u_char	*sci_data;	/* r: Current data */
     56  1.2  chopps 	volatile u_char	*sci_odata;	/* w: Out data */
     57  1.2  chopps 	volatile u_char	*sci_icmd;	/* rw: Initiator command */
     58  1.2  chopps 	volatile u_char	*sci_mode;	/* rw: Mode */
     59  1.2  chopps 	volatile u_char	*sci_tcmd;	/* rw: Target command */
     60  1.2  chopps 	volatile u_char	*sci_bus_csr;	/* r: Bus Status */
     61  1.2  chopps 	volatile u_char	*sci_sel_enb;	/* w: Select enable */
     62  1.2  chopps 	volatile u_char	*sci_csr;	/* r: Status */
     63  1.2  chopps 	volatile u_char	*sci_dma_send;	/* w: Start dma send data */
     64  1.2  chopps 	volatile u_char	*sci_idata;	/* r: Input data */
     65  1.2  chopps 	volatile u_char	*sci_trecv;	/* w: Start dma receive, target */
     66  1.2  chopps 	volatile u_char	*sci_iack;	/* r: Interrupt Acknowledge */
     67  1.2  chopps 	volatile u_char	*sci_irecv;	/* w: Start dma receive, initiator */
     68  1.1  chopps 
     69  1.2  chopps 	int	(*dma_xfer_in)();	/* psuedo DMA transfer */
     70  1.2  chopps 	int	(*dma_xfer_out)();	/* psuedo DMA transfer */
     71  1.2  chopps 	int	(*dma_intr)();		/* board-specific interrupt */
     72  1.1  chopps 	u_char	sc_flags;
     73  1.1  chopps 	u_char	sc_lun;
     74  1.1  chopps 	/* one for each target */
     75  1.1  chopps 	struct syncpar {
     76  1.1  chopps 	  u_char state;
     77  1.1  chopps 	  u_char period, offset;
     78  1.1  chopps 	} sc_sync[8];
     79  1.1  chopps 	u_char	sc_slave;
     80  1.1  chopps 	u_char	sc_scsi_addr;
     81  1.1  chopps 	u_char	sc_stat[2];
     82  1.1  chopps 	u_char	sc_msg[8];
     83  1.1  chopps };
     84  1.1  chopps 
     85  1.1  chopps /* sc_flags */
     86  1.1  chopps #define	SCI_IO		0x80	/* DMA I/O in progress */
     87  1.1  chopps #define	SCI_ALIVE	0x01	/* controller initialized */
     88  1.1  chopps #define SCI_SELECTED	0x04	/* bus is in selected state. Needed for
     89  1.1  chopps 				   correct abort procedure. */
     90  1.1  chopps 
     91  1.1  chopps /* sync states */
     92  1.1  chopps #define SYNC_START	0	/* no sync handshake started */
     93  1.1  chopps #define SYNC_SENT	1	/* we sent sync request, no answer yet */
     94  1.1  chopps #define SYNC_DONE	2	/* target accepted our (or inferior) settings,
     95  1.1  chopps 				   or it rejected the request and we stay async *
     96  1.3  chopps 
     97  1.3  chopps #define	PHASE		0x07		/* mask for psns/pctl phase */
     98  1.3  chopps #define	DATA_OUT_PHASE	0x00
     99  1.3  chopps #define	DATA_IN_PHASE	0x01
    100  1.3  chopps #define	CMD_PHASE	0x02
    101  1.3  chopps #define	STATUS_PHASE	0x03
    102  1.3  chopps #define	BUS_FREE_PHASE	0x04
    103  1.3  chopps #define	ARB_SEL_PHASE	0x05	/* Fuji chip combines arbitration with sel. */
    104  1.3  chopps #define	MESG_OUT_PHASE	0x06
    105  1.3  chopps #define	MESG_IN_PHASE	0x07
    106  1.3  chopps 
    107  1.3  chopps #define	MSG_CMD_COMPLETE	0x00
    108  1.3  chopps #define MSG_EXT_MESSAGE		0x01
    109  1.3  chopps #define	MSG_SAVE_DATA_PTR	0x02
    110  1.3  chopps #define	MSG_RESTORE_PTR		0x03
    111  1.3  chopps #define	MSG_DISCONNECT		0x04
    112  1.3  chopps #define	MSG_INIT_DETECT_ERROR	0x05
    113  1.3  chopps #define	MSG_ABORT		0x06
    114  1.3  chopps #define	MSG_REJECT		0x07
    115  1.3  chopps #define	MSG_NOOP		0x08
    116  1.3  chopps #define	MSG_PARITY_ERROR	0x09
    117  1.3  chopps #define	MSG_BUS_DEVICE_RESET	0x0C
    118  1.3  chopps #define	MSG_IDENTIFY		0x80
    119  1.3  chopps #define	MSG_IDENTIFY_DR		0xc0	/* (disconnect/reconnect allowed) */
    120  1.3  chopps #define	MSG_SYNC_REQ 		0x01
    121  1.3  chopps 
    122  1.3  chopps 
    123  1.3  chopps #define	STS_CHECKCOND	0x02	/* Check Condition (ie., read sense) */
    124  1.3  chopps #define	STS_CONDMET	0x04	/* Condition Met (ie., search worked) */
    125  1.3  chopps #define	STS_BUSY	0x08
    126  1.3  chopps #define	STS_INTERMED	0x10	/* Intermediate status sent */
    127  1.3  chopps #define	STS_EXT		0x80	/* Extended status valid */
    128  1.3  chopps 
    129  1.3  chopps /*
    130  1.3  chopps  * XXXX
    131  1.3  chopps  */
    132  1.3  chopps struct scsi_fmt_cdb {
    133  1.3  chopps 	int len;		/* cdb length (in bytes) */
    134  1.3  chopps 	u_char cdb[28];		/* cdb to use on next read/write */
    135  1.3  chopps };
    136  1.3  chopps 
    137  1.3  chopps struct buf;
    138  1.3  chopps struct scsi_xfer;
    139  1.3  chopps 
    140  1.3  chopps void sci_minphys __P((struct buf *bp));
    141  1.3  chopps u_int sci_adinfo __P((void));
    142  1.3  chopps int sci_scsicmd __P((struct scsi_xfer *));
    143  1.3  chopps 
    144  1.3  chopps #endif /* _SCIVAR_H_ */
    145