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[src/sommerfeld_i386mp_1]: src/sys/arch/i386/include Fix some register constr...
details: https://anonhg.NetBSD.org/src/rev/bae09fbf7a1f
branches: sommerfeld_i386mp_1
changeset: 482468:bae09fbf7a1f
user: thorpej <thorpej%NetBSD.org@localhost>
date: Fri Dec 28 06:44:13 2001 +0000
description:
Fix some register constraints; specifically, the "port" operand,
if not an immediate, must be in a 16-bit register.
diffstat:
sys/arch/i386/include/pio.h | 231 ++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 231 insertions(+), 0 deletions(-)
diffs (235 lines):
diff -r 85deb9c4fdb1 -r bae09fbf7a1f sys/arch/i386/include/pio.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/i386/include/pio.h Fri Dec 28 06:44:13 2001 +0000
@@ -0,0 +1,231 @@
+/* $NetBSD: pio.h,v 1.19.2.2 2001/12/28 06:44:13 thorpej Exp $ */
+
+/*-
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Charles M. Hannum.
+ *
+ * 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 by the NetBSD
+ * Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``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 FOUNDATION OR CONTRIBUTORS
+ * 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_PIO_H_
+#define _I386_PIO_H_
+
+/*
+ * Functions to provide access to i386 programmed I/O instructions.
+ *
+ * The in[bwl]() and out[bwl]() functions are split into two varieties: one to
+ * use a small, constant, 8-bit port number, and another to use a large or
+ * variable port number. The former can be compiled as a smaller instruction.
+ */
+
+
+#ifdef __OPTIMIZE__
+
+#define __use_immediate_port(port) \
+ (__builtin_constant_p((port)) && (port) < 0x100)
+
+#else
+
+#define __use_immediate_port(port) 0
+
+#endif
+
+
+#define inb(port) \
+ (/* CONSTCOND */ __use_immediate_port(port) ? __inbc(port) : __inb(port))
+
+static __inline u_int8_t
+__inbc(u_long port)
+{
+ u_int8_t data;
+ __asm __volatile("inb %w1,%0" : "=a" (data) : "id" (port));
+ return data;
+}
+
+static __inline u_int8_t
+__inb(u_long port)
+{
+ u_int8_t data;
+ __asm __volatile("inb %w1,%0" : "=a" (data) : "d" (port));
+ return data;
+}
+
+static __inline void
+insb(u_long port, void *addr, int cnt)
+{
+ void *dummy1;
+ int dummy2;
+ __asm __volatile("cld\n\trepne\n\tinsb" :
+ "=D" (dummy1), "=c" (dummy2) :
+ "d" (port), "0" (addr), "1" (cnt) :
+ "memory");
+}
+
+#define inw(port) \
+ (/* CONSTCOND */ __use_immediate_port(port) ? __inwc(port) : __inw(port))
+
+static __inline u_int16_t
+__inwc(u_long port)
+{
+ u_int16_t data;
+ __asm __volatile("inw %w1,%0" : "=a" (data) : "id" (port));
+ return data;
+}
+
+static __inline u_int16_t
+__inw(u_long port)
+{
+ u_int16_t data;
+ __asm __volatile("inw %w1,%0" : "=a" (data) : "d" (port));
+ return data;
+}
+
+static __inline void
+insw(u_long port, void *addr, int cnt)
+{
+ void *dummy1;
+ int dummy2;
+ __asm __volatile("cld\n\trepne\n\tinsw" :
+ "=D" (dummy1), "=c" (dummy2) :
+ "d" (port), "0" (addr), "1" (cnt) :
+ "memory");
+}
+
+#define inl(port) \
+ (/* CONSTCOND */ __use_immediate_port(port) ? __inlc(port) : __inl(port))
+
+static __inline u_int32_t
+__inlc(u_long port)
+{
+ u_int32_t data;
+ __asm __volatile("inl %w1,%0" : "=a" (data) : "id" (port));
+ return data;
+}
+
+static __inline u_int32_t
+__inl(u_long port)
+{
+ u_int32_t data;
+ __asm __volatile("inl %w1,%0" : "=a" (data) : "d" (port));
+ return data;
+}
+
+static __inline void
+insl(u_long port, void *addr, int cnt)
+{
+ void *dummy1;
+ int dummy2;
+ __asm __volatile("cld\n\trepne\n\tinsl" :
+ "=D" (dummy1), "=c" (dummy2) :
+ "d" (port), "0" (addr), "1" (cnt) :
+ "memory");
+}
+
+#define outb(port, data) \
+ (/* CONSTCOND */ __use_immediate_port(port) ? __outbc(port, data) : \
+ __outb(port, data))
+
+static __inline void
+__outbc(u_long port, u_int8_t data)
+{
+ __asm __volatile("outb %0,%w1" : : "a" (data), "id" (port));
+}
+
+static __inline void
+__outb(u_long port, u_int8_t data)
+{
+ __asm __volatile("outb %0,%w1" : : "a" (data), "d" (port));
+}
+
+static __inline void
+outsb(u_long port, const void *addr, int cnt)
+{
+ void *dummy1;
+ int dummy2;
+ __asm __volatile("cld\n\trepne\n\toutsb" :
+ "=S" (dummy1), "=c" (dummy2) :
+ "d" (port), "0" (addr), "1" (cnt));
+}
+
+#define outw(port, data) \
+ (/* CONSTCOND */ __use_immediate_port(port) ? __outwc(port, data) : \
+ __outw(port, data))
+
+static __inline void
+__outwc(u_long port, u_int16_t data)
+{
+ __asm __volatile("outw %0,%w1" : : "a" (data), "id" (port));
+}
+
+static __inline void
+__outw(u_long port, u_int16_t data)
+{
+ __asm __volatile("outw %0,%w1" : : "a" (data), "d" (port));
+}
+
+static __inline void
+outsw(u_long port, const void *addr, int cnt)
+{
+ void *dummy1;
+ int dummy2;
+ __asm __volatile("cld\n\trepne\n\toutsw" :
+ "=S" (dummy1), "=c" (dummy2) :
+ "d" (port), "0" (addr), "1" (cnt));
+}
+
+#define outl(port, data) \
+ (/* CONSTCOND */ __use_immediate_port(port) ? __outlc(port, data) : \
+ __outl(port, data))
+
+static __inline void
+__outlc(u_long port, u_int32_t data)
+{
+ __asm __volatile("outl %0,%w1" : : "a" (data), "id" (port));
+}
+
+static __inline void
+__outl(u_long port, u_int32_t data)
+{
+ __asm __volatile("outl %0,%w1" : : "a" (data), "d" (port));
+}
+
+static __inline void
+outsl(u_long port, const void *addr, int cnt)
+{
+ void *dummy1;
+ int dummy2;
+ __asm __volatile("cld\n\trepne\n\toutsl" :
+ "=S" (dummy1), "=c" (dummy2) :
+ "d" (port), "0" (addr), "1" (cnt));
+}
+
+#endif /* _I386_PIO_H_ */
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