1 files changed, 316 insertions, 0 deletions
diff --git a/libusal/scsi-qnx.c b/libusal/scsi-qnx.c
new file mode 100644
index 0000000..7342025
--- /dev/null
+++ b/libusal/scsi-qnx.c
@@ -0,0 +1,316 @@
+/*
+ * This file has been modified for the cdrkit suite.
+ *
+ * The behaviour and appearence of the program code below can differ to a major
+ * extent from the version distributed by the original author(s).
+ *
+ * For details, see Changelog file distributed with the cdrkit package. If you
+ * received this file from another source then ask the distributing person for
+ * a log of modifications.
+ *
+ */
+
+/* @(#)scsi-qnx.c	1.3 04/01/15 Copyright 1998-2003 J. Schilling */
+/*
+ *	Interface for QNX (Neutrino generic SCSI implementation).
+ *	First version adopted from the OSF-1 version by
+ *	Kevin Chiles <kchiles@qnx.com>
+ *
+ *	Warning: you may change this source, but if you do that
+ *	you need to change the _usal_version and _usal_auth* string below.
+ *	You may not return "schily" for an SCG_AUTHOR request anymore.
+ *	Choose your name instead of "schily" and make clear that the version
+ *	string is related to a modified source.
+ *
+ *	Copyright (c) 1998-2003 J. Schilling
+ */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/dcmd_cam.h>
+#include <sys/cam_device.h>
+
+/*
+ *	Warning: you may change this source, but if you do that
+ *	you need to change the _usal_version and _usal_auth* string below.
+ *	You may not return "schily" for an SCG_AUTHOR request anymore.
+ *	Choose your name instead of "schily" and make clear that the version
+ *	string is related to a modified source.
+ */
+static	char	_usal_trans_version[] = "scsi-qnx.c-1.3";	/* The version for this transport*/
+
+#define	MAX_SCG		16	/* Max # of SCSI controllers */
+#define	MAX_TGT		16
+#define	MAX_LUN		8
+
+struct usal_local {
+	int		fd;
+};
+
+#define	usallocal(p)	((struct usal_local *)((p)->local))
+#define	QNX_CAM_MAX_DMA	(32*1024)
+
+#ifndef	AUTO_SENSE_LEN
+#	define	AUTO_SENSE_LEN	32	/* SCG_MAX_SENSE */
+#endif
+
+/*
+ * Return version information for the low level SCSI transport code.
+ * This has been introduced to make it easier to trace down problems
+ * in applications.
+ */
+static char *
+usalo_version(SCSI *usalp, int what)
+{
+	if (usalp != (SCSI *)0) {
+		switch (what) {
+
+		case SCG_VERSION:
+			return (_usal_trans_version);
+		/*
+		 * If you changed this source, you are not allowed to
+		 * return "schily" for the SCG_AUTHOR request.
+		 */
+		case SCG_AUTHOR:
+			return ("Initial Version adopted from OSF-1 by QNX-people");
+			return (_usal_auth_cdrkit);
+		case SCG_SCCS_ID:
+			return (__sccsid);
+		}
+	}
+	return ((char *)0);
+}
+
+static int
+usalo_help(SCSI *usalp, FILE *f)
+{
+	__usal_help(f, "CAM", "Generic transport independent SCSI (Common Access Method)",
+		"", "bus,target,lun", "1,2,0", TRUE, FALSE);
+	return (0);
+}
+
+static int
+usalo_open(SCSI *usalp, char *device)
+{
+	int fd;
+
+	if (device == NULL || *device == '\0') {
+		errno = EINVAL;
+		if (usalp->errstr)
+			snprintf(usalp->errstr, SCSI_ERRSTR_SIZE,
+				"'devname' must be specified on this OS");
+		return (-1);
+	}
+
+	if (usalp->local == NULL) {
+		usalp->local = malloc(sizeof (struct usal_local));
+		if (usalp->local == NULL)
+			return (0);
+		usallocal(usalp)->fd = -1;
+	}
+
+	if (usallocal(usalp)->fd != -1)	/* multiple open? */
+		return (1);
+
+	if ((usallocal(usalp)->fd = open(device, O_RDONLY, 0)) < 0) {
+		if (usalp->errstr)
+			snprintf(usalp->errstr, SCSI_ERRSTR_SIZE,
+				"Cannot open '%s'", device);
+		return (-1);
+	}
+
+	usal_settarget(usalp, 0, 0, 0);
+
+	return (1);
+}
+
+static int
+usalo_close(SCSI *usalp)
+{
+	if (usalp->local == NULL)
+		return (-1);
+
+	if (usallocal(usalp)->fd >= 0)
+		close(usallocal(usalp)->fd);
+	usallocal(usalp)->fd = -1;
+	return (0);
+}
+
+static long
+usalo_maxdma(SCSI *usalp, long amt)
+{
+	long maxdma = QNX_CAM_MAX_DMA;
+
+	return (maxdma);
+}
+
+static void *
+usalo_getbuf(SCSI *usalp, long amt)
+{
+	void	*addr;
+
+	if (usalp->debug > 0) {
+		fprintf((FILE *)usalp->errfile, "usalo_getbuf: %ld bytes\n", amt);
+	}
+
+	if ((addr = mmap(NULL, amt, PROT_READ | PROT_WRITE | PROT_NOCACHE,
+						MAP_ANON | MAP_PHYS | MAP_NOX64K, NOFD, 0)) == MAP_FAILED) {
+		return (NULL);
+	}
+
+	usalp->bufbase = addr;
+	return (addr);
+}
+
+static void
+usalo_freebuf(SCSI *usalp)
+{
+	if (usalp->bufbase)
+		munmap(usalp->bufbase, QNX_CAM_MAX_DMA);
+	usalp->bufbase = NULL;
+}
+
+static BOOL
+usalo_havebus(SCSI *usalp, int busno)
+{
+	return (FALSE);
+}
+
+
+static int
+usalo_fileno(SCSI *usalp, int busno, int tgt, int tlun)
+{
+	if (usalp->local == NULL)
+		return (-1);
+
+	return ((busno < 0 || busno >= MAX_SCG) ? -1 : usallocal(usalp)->fd);
+}
+
+static int
+usalo_initiator_id(SCSI *usalp)
+{
+	return (-1);
+}
+
+static int
+usalo_isatapi(SCSI *usalp)
+{
+	cam_devinfo_t	cinfo;
+
+	if (devctl(usalp->fd, DCMD_CAM_DEVINFO, &cinfo, sizeof (cinfo), NULL) != EOK) {
+		return (TRUE);		/* default to ATAPI */
+	}
+	return ((cinfo.flags & DEV_ATAPI) ? TRUE : FALSE);
+}
+
+static int
+usalo_reset(SCSI *usalp, int what)
+{
+	errno = EINVAL;
+	return (-1);
+}
+
+static int
+usalo_send(SCSI *usalp)
+{
+	int		i;
+	struct usal_cmd	*sp;
+	int		icnt;
+	iov_t   	iov[3];
+	CAM_PASS_THRU	cpt;
+
+	icnt	= 1;
+	sp	= usalp->scmd;
+	if (usalp->fd < 0) {
+		sp->error = SCG_FATAL;
+		return (0);
+	}
+
+	memset(&cpt, 0, sizeof (cpt));
+
+	sp->sense_count	= 0;
+	sp->ux_errno	= 0;
+	sp->error	= SCG_NO_ERROR;
+	cpt.cam_timeout	= sp->timeout;
+	cpt.cam_cdb_len = sp->cdb_len;
+	memcpy(cpt.cam_cdb, sp->cdb.cmd_cdb, sp->cdb_len);
+
+	if (sp->sense_len != -1) {
+		cpt.cam_sense_len	= sp->sense_len;
+		cpt.cam_sense_ptr	= sizeof (cpt);	/* XXX Offset from start of struct to data ??? */
+		icnt++;
+	} else {
+		cpt.cam_flags |= CAM_DIS_AUTOSENSE;
+	}
+
+	if (cpt.cam_dxfer_len = sp->size) {
+		icnt++;
+		cpt.cam_data_ptr	= (paddr_t)sizeof (cpt) + cpt.cam_sense_len;
+		if (sp->flags & SCG_RECV_DATA) {
+			cpt.cam_flags |= CAM_DIR_IN;
+		} else {
+			cpt.cam_flags |= CAM_DIR_OUT;
+		}
+	} else {
+		cpt.cam_flags |= CAM_DIR_NONE;
+	}
+
+	SETIOV(&iov[0], &cpt, sizeof (cpt));
+	SETIOV(&iov[1], sp->u_sense.cmd_sense, cpt.cam_sense_len);
+	SETIOV(&iov[2], sp->addr, sp->size);
+	if (devctlv(usallocal(usalp)->fd, DCMD_CAM_PASS_THRU, icnt, icnt, iov, iov, NULL)) {
+		sp->ux_errno = geterrno();
+		sp->error = SCG_FATAL;
+		if (usalp->debug > 0) {
+			errmsg("cam_io failed\n");
+		}
+		return (0);
+	}
+
+	sp->resid		= cpt.cam_resid;
+	sp->u_scb.cmd_scb[0]	= cpt.cam_scsi_status;
+
+	switch (cpt.cam_status & CAM_STATUS_MASK) {
+		case CAM_REQ_CMP:
+			break;
+
+		case CAM_SEL_TIMEOUT:
+			sp->error	= SCG_FATAL;
+			sp->ux_errno	= EIO;
+			break;
+
+		case CAM_CMD_TIMEOUT:
+			sp->error	= SCG_TIMEOUT;
+			sp->ux_errno	= EIO;
+			break;
+
+		default:
+			sp->error	= SCG_RETRYABLE;
+			sp->ux_errno	= EIO;
+			break;
+	}
+
+	if (cpt.cam_status & CAM_AUTOSNS_VALID) {
+		sp->sense_count = min(cpt.cam_sense_len - cpt.cam_sense_resid,
+							SCG_MAX_SENSE);
+		sp->sense_count = min(sp->sense_count, sp->sense_len);
+		if (sp->sense_len < 0)
+			sp->sense_count = 0;
+	}
+
+	return (0);
+}