initial import of NetBSD tree

1 files changed, 64 insertions, 0 deletions

diff --git a/sys/arch/i386/pci/pci_machdep.h b/sys/arch/i386/pci/pci_machdep.h
new file mode 100644
index 00000000000..56708780ab6
--- /dev/null
+++ b/sys/arch/i386/pci/pci_machdep.h
@@ -0,0 +1,64 @@
+/*	$NetBSD: pci_machdep.h,v 1.3 1995/04/17 12:08:00 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1994 Charles Hannum.  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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Charles Hannum.
+ * 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.
+ */
+
+/*
+ * Machine-specific definitions for PCI autoconfiguration.
+ *
+ * See the comments in pci_machdep.c for more explanation.
+ */
+
+/*
+ * Configuration tag; created from a {bus,device,function} triplet by
+ * pci_make_tag(), and passed to pci_conf_read() and pci_conf_write().
+ * We could instead always pass the {bus,device,function} triplet to
+ * the read and write routines, but this would cause extra overhead.
+ *
+ * Machines other than PCs are likely to use the equivalent of mode 1
+ * tags always.  Mode 2 is historical and deprecated by the Revision
+ * 2.0 specification.
+ */
+typedef union {
+	u_long mode1;
+	struct {
+		u_short port;
+		u_char enable;
+		u_char forward;
+	} mode2;
+} pcitag_t;
+
+/*
+ * Type of a value read from or written to a configuration register.
+ * Always 32 bits.
+ */
+typedef u_int32_t pcireg_t;
+
+extern int pci_mode;
+extern int pci_mode_detect __P((void));