Bring in NetBSD code used in the PowerPC port.

Reviewed by:	obrien, dfr
Obtained from:	NetBSD

1 files changed, 256 insertions, 0 deletions

diff --git a/sys/powerpc/include/pio.h b/sys/powerpc/include/pio.h
new file mode 100644
index 0000000..761eb17
--- /dev/null
+++ b/sys/powerpc/include/pio.h
@@ -0,0 +1,256 @@
+/*
+ * Copyright (c) 1997 Per Fogelstrom, Opsycon AB and RTMX Inc, USA.
+ * 
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed under OpenBSD by
+ *	Per Fogelstrom Opsycon AB for RTMX Inc, North Carolina, USA.
+ * 4. 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.
+ *
+ *	$NetBSD: pio.h,v 1.1 1998/05/15 10:15:54 tsubai Exp $
+ *	$OpenBSD: pio.h,v 1.1 1997/10/13 10:53:47 pefo Exp $
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE_PIO_H_
+#define	_MACHINE_PIO_H_
+/*
+ * I/O macros.
+ */
+
+static __inline void
+__outb(volatile u_int8_t *a, u_int8_t v)
+{
+	*a = v;
+	__asm__ volatile("eieio; sync");
+}
+
+static __inline void
+__outw(volatile u_int16_t *a, u_int16_t v)
+{
+	*a = v;
+	__asm__ volatile("eieio; sync");
+}
+
+static __inline void
+__outl(volatile u_int32_t *a, u_int32_t v)
+{
+	*a = v;
+	__asm__ volatile("eieio; sync");
+}
+
+static __inline void
+__outwrb(volatile u_int16_t *a, u_int16_t v)
+{
+	__asm__ volatile("sthbrx %0, 0, %1" :: "r"(v), "r"(a));
+	__asm__ volatile("eieio; sync");
+}
+
+static __inline void
+__outlrb(volatile u_int32_t *a, u_int32_t v)
+{
+	__asm__ volatile("stwbrx %0, 0, %1" :: "r"(v), "r"(a));
+	__asm__ volatile("eieio; sync");
+}
+
+static __inline u_int8_t
+__inb(volatile u_int8_t *a)
+{
+	u_int8_t _v_;
+
+	_v_ = *a;
+	__asm__ volatile("eieio; sync");
+	return _v_;
+}
+
+static __inline u_int16_t
+__inw(volatile u_int16_t *a)
+{
+	u_int16_t _v_;
+
+	_v_ = *a;
+	__asm__ volatile("eieio; sync");
+	return _v_;
+}
+
+static __inline u_int32_t
+__inl(volatile u_int32_t *a)
+{
+	u_int32_t _v_;
+
+	_v_ = *a;
+	__asm__ volatile("eieio; sync");
+	return _v_;
+}
+
+static __inline u_int16_t
+__inwrb(volatile u_int16_t *a)
+{
+	u_int16_t _v_;
+
+	__asm__ volatile("lhbrx %0, 0, %1" : "=r"(_v_) : "r"(a));
+	__asm__ volatile("eieio; sync");
+	return _v_;
+}
+
+static __inline u_int32_t
+__inlrb(volatile u_int32_t *a)
+{
+	u_int32_t _v_;
+
+	__asm__ volatile("lwbrx %0, 0, %1" : "=r"(_v_) : "r"(a));
+	__asm__ volatile("eieio; sync");
+	return _v_;
+}
+
+#define	outb(a,v)	(__outb((volatile u_int8_t *)(a), v))
+#define	out8(a,v)	outb(a,v)
+#define	outw(a,v)	(__outw((volatile u_int16_t *)(a), v))
+#define	out16(a,v)	outw(a,v)
+#define	outl(a,v)	(__outl((volatile u_int32_t *)(a), v))
+#define	out32(a,v)	outl(a,v)
+#define	inb(a)		(__inb((volatile u_int8_t *)(a)))
+#define	in8(a)		inb(a)
+#define	inw(a)		(__inw((volatile u_int16_t *)(a)))
+#define	in16(a)		inw(a)
+#define	inl(a)		(__inl((volatile u_int32_t *)(a)))
+#define	in32(a)		inl(a)
+
+#define	out8rb(a,v)	outb(a,v)
+#define	outwrb(a,v)	(__outwrb((volatile u_int16_t *)(a), v))
+#define	out16rb(a,v)	outwrb(a,v)
+#define	outlrb(a,v)	(__outlrb((volatile u_int32_t *)(a), v))
+#define	out32rb(a,v)	outlrb(a,v)
+#define	in8rb(a)	inb(a)
+#define	inwrb(a)	(__inwrb((volatile u_int16_t *)(a)))
+#define	in16rb(a)	inwrb(a)
+#define	inlrb(a)	(__inlrb((volatile u_int32_t *)(a)))
+#define	in32rb(a)	inlrb(a)
+
+
+static __inline void
+__outsb(volatile u_int8_t *a, const u_int8_t *s, size_t c)
+{
+	while (c--)
+		*a = *s++;
+	__asm__ volatile("eieio; sync");
+}
+
+static __inline void
+__outsw(volatile u_int16_t *a, const u_int16_t *s, size_t c)
+{
+	while (c--)
+		*a = *s++;
+	__asm__ volatile("eieio; sync");
+}
+
+static __inline void
+__outsl(volatile u_int32_t *a, const u_int32_t *s, size_t c)
+{
+	while (c--)
+		*a = *s++;
+	__asm__ volatile("eieio; sync");
+}
+
+static __inline void
+__outswrb(volatile u_int16_t *a, const u_int16_t *s, size_t c)
+{
+	while (c--)
+		__asm__ volatile("sthbrx %0, 0, %1" :: "r"(*s++), "r"(a));
+	__asm__ volatile("eieio; sync");
+}
+
+static __inline void
+__outslrb(volatile u_int32_t *a, const u_int32_t *s, size_t c)
+{
+	while (c--)
+		__asm__ volatile("stwbrx %0, 0, %1" :: "r"(*s++), "r"(a));
+	__asm__ volatile("eieio; sync");
+}
+
+static __inline void
+__insb(volatile u_int8_t *a, u_int8_t *d, size_t c)
+{
+	while (c--)
+		*d++ = *a;
+	__asm__ volatile("eieio; sync");
+}
+
+static __inline void
+__insw(volatile u_int16_t *a, u_int16_t *d, size_t c)
+{
+	while (c--)
+		*d++ = *a;
+	__asm__ volatile("eieio; sync");
+}
+
+static __inline void
+__insl(volatile u_int32_t *a, u_int32_t *d, size_t c)
+{
+	while (c--)
+		*d++ = *a;
+	__asm__ volatile("eieio; sync");
+}
+
+static __inline void
+__inswrb(volatile u_int16_t *a, u_int16_t *d, size_t c)
+{
+	while (c--)
+		__asm__ volatile("lhbrx %0, 0, %1" : "=r"(*d++) : "r"(a));
+	__asm__ volatile("eieio; sync");
+}
+
+static __inline void
+__inslrb(volatile u_int32_t *a, u_int32_t *d, size_t c)
+{
+	while (c--)
+		__asm__ volatile("lwbrx %0, 0, %1" : "=r"(*d++) : "r"(a));
+	__asm__ volatile("eieio; sync");
+}
+
+#define	outsb(a,s,c)	(__outsb((volatile u_int8_t *)(a), s, c))
+#define	outs8(a,s,c)	outsb(a,s,c)
+#define	outsw(a,s,c)	(__outsw((volatile u_int16_t *)(a), s, c))
+#define	outs16(a,s,c)	outsw(a,s,c)
+#define	outsl(a,s,c)	(__outsl((volatile u_int32_t *)(a), s, c))
+#define	outs32(a,s,c)	outsl(a,s,c)
+#define	insb(a,d,c)	(__insb((volatile u_int8_t *)(a), d, c))
+#define	ins8(a,d,c)	insb(a,d,c)
+#define	insw(a,d,c)	(__insw((volatile u_int16_t *)(a), d, c))
+#define	ins16(a,d,c)	insw(a,d,c)
+#define	insl(a,d,c)	(__insl((volatile u_int32_t *)(a), d, c))
+#define	ins32(a,d,c)	insl(a,d,c)
+
+#define	outs8rb(a,s,c)	outsb(a,s,c)
+#define	outswrb(a,s,c)	(__outswrb((volatile u_int16_t *)(a), s, c))
+#define	outs16rb(a,s,c)	outswrb(a,s,c)
+#define	outslrb(a,s,c)	(__outslrb((volatile u_int32_t *)(a), s, c))
+#define	outs32rb(a,s,c)	outslrb(a,s,c)
+#define	ins8rb(a,d,c)	insb(a,d,c)
+#define	inswrb(a,d,c)	(__inswrb((volatile u_int16_t *)(a), d, c))
+#define	ins16rb(a,d,c)	inswrb(a,d,c)
+#define	inslrb(a,d,c)	(__inslrb((volatile u_int32_t *)(a), d, c))
+#define	ins32rb(a,d,c)	inslrb(a,d,c)
+
+#endif /*_MACHINE_PIO_H_*/