136 lines
3.5 KiB
C
136 lines
3.5 KiB
C
/* Written by Phil Nelson for the pc532. Used source with the following
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* copyrights as a model.
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*
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* aic.c: A Adaptec 6250 driver for the pc532.
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*/
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/*
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* (Mostly) Written by Julian Elischer (julian@tfs.com)
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* for TRW Financial Systems for use under the MACH(2.5) operating system.
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*
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* TRW Financial Systems, in accordance with their agreement with Carnegie
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* Mellon University, makes this software available to CMU to distribute
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* or use in any manner that they see fit as long as this message is kept with
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* the software. For this reason TFS also grants any other persons or
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* organisations permission to use or modify this software.
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*
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* TFS supplies this software to be publicly redistributed
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* on the understanding that TFS is not responsible for the correct
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* functioning of this software in any circumstances.
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*
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* $Id: aic.c,v 1.1.1.1 1993/09/09 23:53:53 phil Exp $
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*/
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/*
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* a FEW lines in this driver come from a MACH adaptec-disk driver
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* so the copyright below is included:
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*
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* Copyright 1990 by Open Software Foundation,
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* Grenoble, FRANCE
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*
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* All Rights Reserved
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby granted,
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* provided that the above copyright notice appears in all copies and
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* that both the copyright notice and this permission notice appear in
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* supporting documentation, and that the name of OSF or Open Software
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* Foundation not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission.
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*
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* OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
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* IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
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* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#include "sys/types.h"
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#include "sys/param.h"
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#include "sys/systm.h"
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#include "sys/errno.h"
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#include "sys/ioctl.h"
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#include "sys/buf.h"
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#include "machine/stdarg.h"
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#include "sys/proc.h"
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#include "sys/user.h"
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#include "sys/dkbad.h"
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#include "sys/disklabel.h"
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#include "scsi/scsi_all.h"
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#include "scsi/scsiconf.h"
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#include "device.h"
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/* Some constants (may need to be changed!) */
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#define AIC_NSEG 16
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int aicprobe(struct pc532_device *);
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int aicattach(struct pc532_device *);
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int aic_scsi_cmd(struct scsi_xfer *);
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void aicminphys(struct buf *);
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long int aic_adapter_info(int);
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struct scsidevs *
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scsi_probe(int masunit, struct scsi_switch *sw, int physid, int type, int want);
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struct pc532_driver aicdriver = {
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aicprobe, aicattach, "aic",
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};
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struct scsi_switch dp_switch = {
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"aic",
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aic_scsi_cmd,
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aicminphys,
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0,
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0,
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aic_adapter_info,
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0, 0, 0
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};
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int aicprobe(struct pc532_device *dvp)
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{
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return (0); /* All pc532s should have one, but it is not working now. */
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}
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int aicattach(struct pc532_device *dvp)
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{
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int r;
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r = scsi_attach(0, 7, &dp_switch,
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&dvp->pd_drive, &dvp->pd_unit, dvp->pd_flags);
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return(r);
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}
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void aicminphys(struct buf *bp)
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{
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if(bp->b_bcount > ((AIC_NSEG - 1) * NBPG))
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bp->b_bcount = ((AIC_NSEG - 1) * NBPG);
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}
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long int aic_adapter_info(int unit)
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{
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return (1); /* only 1 outstanding request. */
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}
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/* Do a scsi command. */
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struct scsi_xfer *cur_xs;
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int aic_scsi_cmd(struct scsi_xfer *xs)
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{
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printf ("aic_scsi_cmd: ... \n");
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cur_xs = xs;
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return (HAD_ERROR);
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}
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void aic_intr (struct intrframe frame)
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{
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}
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