Add common.h, currently containing MMIO accessor functions.

include/libopenstm32.h

@@ -22,6 +22,7 @@
 #define LIBOPENSTM32_LIBOPENSTM32_H
 
 #include "libopenstm32/stdint.h"
+#include "libopenstm32/common.h"
 #include "libopenstm32/memorymap.h"
 #include "libopenstm32/gpio.h"
 

include/libopenstm32/common.h

@@ -0,0 +1,31 @@
+/*
+ * This file is part of the libopenstm32 project.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#ifndef LIBOPENSTM32_COMMON_H
+#define LIBOPENSTM32_COMMON_H
+
+#include "libopenstm32.h"
+
+/* Generic memory-mapped I/O accessor functions */
+#define MMIO8(addr)		(*(volatile u8 *)(addr))
+#define MMIO16(addr)		(*(volatile u16 *)(addr))
+#define MMIO32(addr)		(*(volatile u32 *)(addr))
+
+#endif