NetBSD/sys/arch/pc532/dev/aic.c

136 lines
3.5 KiB
C

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