From 5cc82e159acdb7aa2f35bfde42ff0f77cedad4fa Mon Sep 17 00:00:00 2001
From: cgd <cgd@NetBSD.org>
Date: Wed, 28 Jun 1995 01:16:33 +0000
Subject: [PATCH] Support for ISA programmed I/O functions.

---
 sys/arch/alpha/include/pio.h | 88 ++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 sys/arch/alpha/include/pio.h

diff --git a/sys/arch/alpha/include/pio.h b/sys/arch/alpha/include/pio.h
new file mode 100644
index 000000000000..9fd16f4af209
--- /dev/null
+++ b/sys/arch/alpha/include/pio.h
@@ -0,0 +1,88 @@
+/*	$NetBSD: pio.h,v 1.1 1995/06/28 01:16:33 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1995 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ * 
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+/* Prototypes for ISA-ish I/O space access functions. */
+
+/*
+ * XXX
+ * XXX THIS WILL LIKELY HAVE TO BE COMPLETELY CHANGED.
+ * XXX e.g. to take softc for bus.
+ * XXX
+ */
+
+struct	isa_pio_fcns {
+	/* input functions */
+	u_int8_t	(*isa_inb) __P((int port));
+	void		(*isa_insb) __P((int port, void *addr, int cnt));
+	u_int16_t	(*isa_inw) __P((int port));
+	void		(*isa_insw) __P((int port, void *addr, int cnt));
+	u_int32_t	(*isa_inl) __P((int port));
+	void		(*isa_insl) __P((int port, void *addr, int cnt));
+
+	/* output functions */
+	void		(*isa_outb) __P((int port, u_int8_t datum));
+	void		(*isa_outsb) __P((int port, void *addr, int cnt));
+	void		(*isa_outw) __P((int port, u_int16_t datum));
+	void		(*isa_outsw) __P((int port, void *addr, int cnt));
+	void		(*isa_outl) __P((int port, u_int32_t datum));
+	void		(*isa_outsl) __P((int port, void *addr, int cnt));
+};
+
+/*
+ * Global which tells which set of functions are correct
+ * for this machine.
+ */
+struct isa_pio_fcns *isa_pio_fcns;
+
+/*
+ * Individual chipsets' versions.
+ */
+extern struct isa_pio_fcns apecs_pio_fcns;
+extern struct isa_pio_fcns jensen_pio_fcns;
+
+
+/*
+ * macros to use input functions
+ */
+#define	inb(p)		(*isa_pio_fcns->isa_inb)(p)
+#define	insb(p, a, c)	(*isa_pio_fcns->isa_insb)(p, a, c)
+#define	inw(p)		(*isa_pio_fcns->isa_inw)(p)
+#define	insw(p, a, c)	(*isa_pio_fcns->isa_insw)(p, a, c)
+#define	inl(p)		(*isa_pio_fcns->isa_inl)(p)
+#define	insl(p, a, c)	(*isa_pio_fcns->isa_insl)(p, a, c)
+
+/*
+ * macros to use output functions
+ */
+#define	outb(p, d)	(*isa_pio_fcns->isa_outb)(p, d)
+#define	outsb(p, a, c)	(*isa_pio_fcns->isa_outsb)(p, a, c)
+#define	outw(p, d)	(*isa_pio_fcns->isa_outw)(p, d)
+#define	outsw(p, a, c)	(*isa_pio_fcns->isa_outsw)(p, a, c)
+#define	outl(p, d)	(*isa_pio_fcns->isa_outl)(p, d)
+#define	outsl(p, a, c)	(*isa_pio_fcns->isa_outsl)(p, a, c)