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+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2008 Nathan Whitehorn
+ * 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.
+ *
+ * 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 TOOLS GMBH 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 _POWERPC_VIAREG_H_
+#define _POWERPC_VIAREG_H_
+
+/* VIA interface registers */
+#define vBufB 0x0000 /* register B */
+#define vDirB 0x0400 /* data direction register */
+#define vDirA 0x0600 /* data direction register */
+#define vT1C 0x0800 /* Timer 1 counter Lo */
+#define vT1CH 0x0a00 /* Timer 1 counter Hi */
+#define vSR 0x1400 /* shift register */
+#define vACR 0x1600 /* aux control register */
+#define vPCR 0x1800 /* peripheral control register */
+#define vIFR 0x1a00 /* interrupt flag register */
+#define vIER 0x1c00 /* interrupt enable register */
+#define vBufA 0x1e00 /* register A */
+
+#define vPB 0x0000
+#define vPB3 0x08
+#define vPB4 0x10
+#define vPB5 0x20
+#define vSR_INT 0x04
+#define vSR_OUT 0x10
+
+#endif /* _POWERPC_VIAREG_H_ */