/* @(#)scsi-hpux.c	1.6 98/08/16 Copyright 1997 J. Schilling */#ifndef lintstatic	char __sccsid[] =	"@(#)scsi-hpux.c	1.6 98/08/16 Copyright 1997 J. Schilling";#endif/* *	Interface for the HP-UX generic SCSI implementation. * *	Copyright (c) 1997 J. Schilling *//* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; see the file COPYING.  If not, write to * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */#undef	sense#include <sys/scsi.h>#define	MAX_SCG		4	/* Max # of SCSI controllers */#define	MAX_TGT		8#define	MAX_LUN		8LOCAL	short	scgfiles[MAX_SCG][MAX_TGT][MAX_LUN];#ifdef	SCSI_MAXPHYS#	define	MAX_DMA_HP	SCSI_MAXPHYS#else#	define	MAX_DMA_HP	(63*1024)	/* Check if this is not too big */#endifLOCAL	int	scsi_send	__PR((int f, struct scg_cmd *sp));extern int scsibus;extern int target;extern int lun;EXPORTint scsi_open(device, busno, tgt, tlun)	char	*device;	int	busno;	int	tgt;	int	tlun;{	register int	f;	register int	b;	register int	t;	register int	l;	register int	nopen = 0;	char		devname[64];	for (b=0; b < MAX_SCG; b++) {		for (t=0; t < MAX_TGT; t++) {			for (l=0; l < MAX_LUN ; l++)				scgfiles[b][t][l] = (short)-1;		}	}	if (scsibus >= 0 && target >= 0 && lun >= 0) {			if (scsibus >= MAX_SCG || target >= MAX_TGT || lun >= MAX_LUN)			return (-1);		sprintf(devname, "/dev/rscsi/c%dt%dl%d", scsibus, target, lun);		f = open(devname, O_RDWR);		if (f < 0)			return(-1);		scgfiles[scsibus][target][lun] = f;		return(1);	} else {		for (b=0; b < MAX_SCG; b++) {			for (t=0; t < MAX_TGT; t++) {/*				for (l=0; l < MAX_LUN ; l++) {*/				for (l=0; l < 1 ; l++) {					sprintf(devname, "/dev/rscsi/c%dt%dl%d", b, t, l);/*error("name: '%s'\n", devname);*/					f = open(devname, O_RDWR);					if (f >= 0) {						scgfiles[b][t][l] = (short)f;						nopen++;					} else if (debug) {						errmsg("open '%s'\n", devname);					}				}			}		}	}	return (nopen);}LOCAL longscsi_maxdma(){	return	(MAX_DMA_HP);}EXPORT void *scsi_getbuf(amt)	long	amt;{	void	*ret;	if (scg_maxdma == 0)		scg_maxdma = scsi_maxdma();	if (amt <= 0 || amt > scg_maxdma)		return ((void *)0);	if (debug)		printf("scsi_getbuf: %ld bytes\n", amt);	ret = valloc((size_t)(amt));	return (ret);}EXPORTBOOL scsi_havebus(busno)	int	busno;{	register int	t;	register int	l;	if (busno < 0 || busno >= MAX_SCG)		return (FALSE);	for (t=0; t < MAX_TGT; t++) {		for (l=0; l < MAX_LUN ; l++)			if (scgfiles[busno][t][l] >= 0)				return (TRUE);	}	return (FALSE);}EXPORTint scsi_fileno(busno, tgt, tlun)	int	busno;	int	tgt;	int	tlun;{	if (busno < 0 || busno >= MAX_SCG ||	    tgt < 0 || tgt >= MAX_TGT ||	    tlun < 0 || tlun >= MAX_LUN)		return (-1);	return ((int)scgfiles[busno][tgt][tlun]);}EXPORTint scsi_isatapi(){	return (FALSE);}EXPORTint scsireset(){	int	f = scsi_fileno(scsibus, target, lun);	return (ioctl(f, SIOC_RESET_BUS, 0));}LOCAL intscsi_send(f, sp)	int		f;	struct scg_cmd	*sp;{	int	ret;	int	flags;	struct sctl_io	sctl_io;	if ((f < 0) || (sp->cdb_len > sizeof(sctl_io.cdb))) {		sp->error = SCG_FATAL;		return (0);	}	fillbytes((caddr_t)&sctl_io, sizeof(sctl_io), '\0');	flags = 0;/*	flags = SCTL_INIT_WDTR|SCTL_INIT_SDTR;*/	if (sp->flags & SCG_RECV_DATA)		flags |= SCTL_READ;	if ((sp->flags & SCG_DISRE_ENA) == 0)		flags |= SCTL_NO_ATN;	sctl_io.flags		= flags;	movebytes(&sp->cdb, sctl_io.cdb, sp->cdb_len);	sctl_io.cdb_length	= sp->cdb_len;	sctl_io.data_length	= sp->size;	sctl_io.data		= sp->addr;	if (sp->timeout == 0)		sctl_io.max_msecs = 0;	else		sctl_io.max_msecs = (sp->timeout * 1000) + 500;	errno		= 0;	sp->error	= SCG_NO_ERROR;	sp->sense_count	= 0;	sp->u_scb.cmd_scb[0] = 0;	sp->resid	= 0;	ret = ioctl(f, SIOC_IO, &sctl_io);	if (ret < 0) {		sp->error = SCG_FATAL;		sp->ux_errno = errno;		return (ret);	}if (debug)error("cdb_status: %X, size: %d xfer: %d\n", sctl_io.cdb_status, sctl_io.data_length, sctl_io.data_xfer);	if (sctl_io.cdb_status == 0 || sctl_io.cdb_status == 0x02)		sp->resid = sp->size - sctl_io.data_xfer;	if (sctl_io.cdb_status & SCTL_SELECT_TIMEOUT ||			sctl_io.cdb_status & SCTL_INVALID_REQUEST) {		sp->error = SCG_FATAL;	} else if (sctl_io.cdb_status & SCTL_INCOMPLETE) {		sp->error = SCG_TIMEOUT;	} else if (sctl_io.cdb_status > 0xFF) {		errmsgno(EX_BAD, "SCSI problems: cdb_status: %X\n", sctl_io.cdb_status);	} else if ((sctl_io.cdb_status & 0xFF) != 0) {		sp->error = SCG_RETRYABLE;		sp->ux_errno = EIO;		sp->u_scb.cmd_scb[0] = sctl_io.cdb_status & 0xFF;		sp->sense_count = sctl_io.sense_xfer;		if (sp->sense_count > SCG_MAX_SENSE)			sp->sense_count = SCG_MAX_SENSE;		if (sctl_io.sense_status != S_GOOD) {			sp->sense_count = 0;		} else {			movebytes(sctl_io.sense, sp->u_sense.cmd_sense, sp->sense_count);		}	}	return (ret);}#define	sense	u_sense.Sense