Initial source

1 files changed, 110 insertions, 0 deletions

diff --git a/i386/i386at/eisa.h b/i386/i386at/eisa.h
new file mode 100644
index 0000000..33629ca
--- /dev/null
+++ b/i386/i386at/eisa.h
@@ -0,0 +1,110 @@
+/* 
+ * Mach Operating System
+ * Copyright (c) 1993 Carnegie Mellon University
+ * All Rights Reserved.
+ * 
+ * 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 Mellon
+ * the rights to redistribute these changes.
+ */
+/*
+ * Copyright 1992 by Open Software Foundation,
+ * Grenoble, FRANCE
+ *
+ * 		All Rights Reserved
+ * 
+ *   Permission to use, copy, modify, and distribute this software and
+ * its documentation for any purpose and without fee is hereby granted,
+ * provided that the above copyright notice appears in all copies and
+ * that both the copyright notice and this permission notice appear in
+ * supporting documentation, and that the name of OSF or Open Software
+ * Foundation not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission.
+ * 
+ *   OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
+ * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
+ * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/*
+ * Eisa defs
+ */
+
+#ifndef _I386AT_EISA_H_
+#define _I386AT_EISA_H_
+
+#include <mach/boolean.h>
+
+#if	EISA
+extern boolean_t is_eisa_bus;
+
+#define EISA_ID_REG(board, byte)	(0xc80 | (byte) | ((board) << 12))
+
+#define EISA_ID_REG_0	0x0
+#define EISA_ID_REG_1	0x1
+#define EISA_ID_REG_2	0x2
+#define EISA_ID_REG_3	0x3
+
+#define EISA_SYSTEM_BOARD 0x0
+
+struct std_board_id {
+	unsigned revision:	8,	/* Revision number */
+		 product:	8;	/* Product number */ 
+};
+
+struct sys_board_id {
+	unsigned bus_vers:	3,	/* EISA bus version */
+		 reserved:	13;	/* Manufacturer reserved */
+};
+
+struct board_id {
+	union {
+		struct sys_board_id sys_id;
+		struct std_board_id std_id;
+	} bd_id;
+	unsigned name_char_2: 	5,	/* 3nd compressed char */
+      		 name_char_1: 	5,	/* 2nd compressed char */
+      		 name_char_0: 	5,	/* 1st compressed char */
+		 not_eisa:    	1;	/* 0 if eisa board */
+};
+
+union eisa_board_id {
+	unsigned char byte[4];
+	struct board_id id;
+};
+
+typedef union eisa_board_id eisa_board_id_t;
+
+
+/* Additional DMA registers */
+
+#define	DMA0HIPAGE	0x481		/* DMA 0 address: bits 24-31 */
+#define	DMA0HICNT	0x405		/* DMA 0 count: bits 16-23 */
+
+
+#else	/* EISA */
+#define is_eisa_bus FALSE
+#define probe_eisa()
+#endif	/* EISA */
+
+#endif	/* _I386AT_EISA_H_ */