Add PC-Card/ISA SCSI host adpater drivers from NetBSD/pc98

(a NetBSD port for NEC PC-98x1 machines). They are ncv for NCR 53C500,
nsp for Workbit Ninja SCSI-3, and stg for TMC 18C30 and 18C50.

I thank NetBSD/pc98 and bsd-nomads people.

Obtained from:	NetBSD/pc98

1 files changed, 89 insertions, 0 deletions

diff --git a/sys/compat/netbsd/physio_proc.h b/sys/compat/netbsd/physio_proc.h
new file mode 100644
index 0000000..f31507e
--- /dev/null
+++ b/sys/compat/netbsd/physio_proc.h
@@ -0,0 +1,89 @@
+/*	$FreeBSD$	*/
+/*	$NecBSD: physio_proc.h,v 3.4 1999/07/23 20:47:03 honda Exp $	*/
+/*	$NetBSD$	*/
+
+/*
+ * [NetBSD for NEC PC-98 series]
+ *  Copyright (c) 1998
+ *	NetBSD/pc98 porting staff. All rights reserved.
+ * 
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions
+ *  are met:
+ *  1. Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _I386_PHYSIO_PROC_H_
+#define _I386_PHYSIO_PROC_H_
+#include <sys/buf.h>
+#include <sys/queue.h>
+
+struct physio_proc;
+TAILQ_HEAD(physio_proc_head, physio_proc);
+struct physio_proc_head physio_proc_freet, physio_proc_busyt;
+
+struct physio_proc {
+	TAILQ_ENTRY(physio_proc) pp_chain;
+	struct proc *pp_proc;
+};
+
+static __inline struct physio_proc *physio_proc_enter __P((struct buf *));
+static __inline void physio_proc_leave __P((struct physio_proc *));
+
+static __inline struct physio_proc *
+physio_proc_enter(bp)
+	struct buf *bp;
+{
+	struct physio_proc *pp;
+	int s;
+
+	if (bp == NULL || (bp->b_flags & B_PHYS) == 0)
+		return NULL;	
+	if ((pp = physio_proc_freet.tqh_first) == NULL)
+		return NULL;
+
+	s = splstatclock();
+	TAILQ_REMOVE(&physio_proc_freet, pp, pp_chain);
+#if !defined(__FreeBSD__) || __FreeBSD_version < 400001
+	pp->pp_proc = bp->b_proc;
+#endif
+	TAILQ_INSERT_TAIL(&physio_proc_busyt, pp, pp_chain);
+	splx(s);
+	return pp;
+}
+
+static __inline void
+physio_proc_leave(pp)
+	struct physio_proc *pp;
+{
+	int s;
+
+	if (pp == NULL)
+		return;
+
+	s = splstatclock();
+	TAILQ_REMOVE(&physio_proc_busyt, pp, pp_chain);
+	TAILQ_INSERT_TAIL(&physio_proc_freet, pp, pp_chain);
+	pp->pp_proc = NULL;
+	splx(s);
+}
+
+void physio_proc_init __P((void));
+#endif /* _I386_PHYSIO_PROC_H_ */