Moved include files which are independent of bs driver.

1 files changed, 129 insertions, 0 deletions

diff --git a/sys/i386/isa/ccbque.h b/sys/i386/isa/ccbque.h
new file mode 100644
index 0000000..df80faf
--- /dev/null
+++ b/sys/i386/isa/ccbque.h
@@ -0,0 +1,129 @@
+/*	$NetBSD$	*/
+/*
+ * [NetBSD for NEC PC98 series]
+ *  Copyright (c) 1994, 1995, 1996 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.
+ */
+/*
+ * Common command control queue funcs.
+ * Written by N. Honda.
+ */
+
+#ifndef	_CCBQUE_H_
+#define	_CCBQUE_H_
+
+#define	CCB_MWANTED 0x01
+#define	CCB_WOK(fl) (((fl) == 0) ? M_WAITOK : M_NOWAIT)
+						
+/* (I)  structure and prototype */
+#define GENERIC_CCB_ASSERT(DEV, CCBTYPE)				\
+TAILQ_HEAD(CCBTYPE##tab, CCBTYPE);					\
+struct CCBTYPE##que {							\
+	struct CCBTYPE##tab CCBTYPE##tab;				\
+	int count;							\
+	int maxccb;							\
+	u_int flags;							\
+};									\
+									\
+void DEV##_init_ccbque __P((int));					\
+struct CCBTYPE *DEV##_get_ccb __P((int));				\
+void DEV##_free_ccb __P((register struct CCBTYPE *));
+
+/* (II)  static allocated memory */
+#define GENERIC_CCB_STATIC_ALLOC(DEV, CCBTYPE)				\
+static struct CCBTYPE##que CCBTYPE##que;
+
+/* (III)  functions */
+#define GENERIC_CCB(DEV, CCBTYPE, CHAIN)				\
+									\
+void									\
+DEV##_init_ccbque(count)						\
+	int count;							\
+{									\
+	if (CCBTYPE##que.maxccb == 0)					\
+		TAILQ_INIT(&CCBTYPE##que.CCBTYPE##tab)			\
+	CCBTYPE##que.maxccb += count;					\
+}									\
+									\
+struct CCBTYPE *							\
+DEV##_get_ccb(flags)							\
+	int flags;							\
+{									\
+	register struct CCBTYPE *cb;					\
+	int s = splbio();						\
+									\
+again:									\
+	if (CCBTYPE##que.count < CCBTYPE##que.maxccb)			\
+	{								\
+		CCBTYPE##que.count ++;					\
+		cb = CCBTYPE##que.CCBTYPE##tab.tqh_first;		\
+		if (cb != NULL)						\
+		{							\
+			TAILQ_REMOVE(&CCBTYPE##que.CCBTYPE##tab, cb, CHAIN)\
+			goto out;					\
+		}							\
+		else							\
+		{							\
+			cb = malloc(sizeof(*cb), M_DEVBUF, CCB_WOK(flags));\
+			if (cb != NULL)					\
+			{						\
+				bzero(cb, sizeof(*cb));			\
+				goto out;				\
+			}						\
+		}							\
+		CCBTYPE##que.count --;					\
+	}								\
+									\
+	if (flags == 0)							\
+	{ 								\
+		CCBTYPE##que.flags |= CCB_MWANTED;			\
+		tsleep((caddr_t) &CCBTYPE##que.count, PRIBIO, "ccbwait", 0);\
+		goto again;						\
+	}								\
+	cb = NULL;							\
+									\
+out:									\
+	splx(s);							\
+	return cb;							\
+}									\
+									\
+void									\
+DEV##_free_ccb(cb)							\
+	register struct CCBTYPE *cb;					\
+{									\
+	int s = splbio();						\
+									\
+	TAILQ_INSERT_TAIL(&CCBTYPE##que.CCBTYPE##tab, cb, CHAIN)	\
+	CCBTYPE##que.count --;						\
+									\
+	if (CCBTYPE##que.flags & CCB_MWANTED)				\
+	{								\
+		CCBTYPE##que.flags &= ~CCB_MWANTED;			\
+		wakeup ((caddr_t) &CCBTYPE##que.count);			\
+	}								\
+	splx(s);							\
+}
+#endif	/* !_CCBQUE_H_ */