1 files changed, 96 insertions, 0 deletions
diff --git a/libopencm3/include/libopencm3/cm3/common.h b/libopencm3/include/libopencm3/cm3/common.h
new file mode 100644
index 0000000..a7a8df8
--- /dev/null
+++ b/libopencm3/include/libopencm3/cm3/common.h
@@ -0,0 +1,96 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LIBOPENCM3_CM3_COMMON_H
+#define LIBOPENCM3_CM3_COMMON_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+/* This must be placed around external function declaration for C++
+ * support. */
+#ifdef __cplusplus
+# define BEGIN_DECLS extern "C" {
+# define END_DECLS }
+#else
+# define BEGIN_DECLS
+# define END_DECLS
+#endif
+
+/* Full-featured deprecation attribute with fallback for older compilers. */
+
+#ifdef __GNUC__
+#	if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 4)
+#		define LIBOPENCM3_DEPRECATED(x) __attribute__((deprecated(x)))
+#	else
+#		define LIBOPENCM3_DEPRECATED(x) __attribute__((deprecated))
+#	endif
+#else
+#	define LIBOPENCM3_DEPRECATED(x)
+#endif
+
+
+/* Generic memory-mapped I/O accessor functions */
+#define MMIO8(addr)		(*(volatile uint8_t *)(addr))
+#define MMIO16(addr)		(*(volatile uint16_t *)(addr))
+#define MMIO32(addr)		(*(volatile uint32_t *)(addr))
+#define MMIO64(addr)		(*(volatile uint64_t *)(addr))
+
+/* Generic bit-band I/O accessor functions */
+#define BBIO_SRAM(addr, bit) \
+	MMIO32((((uint32_t)addr) & 0x0FFFFF) * 32 + 0x22000000 + (bit) * 4)
+
+#define BBIO_PERIPH(addr, bit) \
+	MMIO32((((uint32_t)addr) & 0x0FFFFF) * 32 + 0x42000000 + (bit) * 4)
+
+/* Generic bit definition */
+#define BIT0  (1<<0)
+#define BIT1  (1<<1)
+#define BIT2  (1<<2)
+#define BIT3  (1<<3)
+#define BIT4  (1<<4)
+#define BIT5  (1<<5)
+#define BIT6  (1<<6)
+#define BIT7  (1<<7)
+#define BIT8  (1<<8)
+#define BIT9  (1<<9)
+#define BIT10 (1<<10)
+#define BIT11 (1<<11)
+#define BIT12 (1<<12)
+#define BIT13 (1<<13)
+#define BIT14 (1<<14)
+#define BIT15 (1<<15)
+#define BIT16 (1<<16)
+#define BIT17 (1<<17)
+#define BIT18 (1<<18)
+#define BIT19 (1<<19)
+#define BIT20 (1<<20)
+#define BIT21 (1<<21)
+#define BIT22 (1<<22)
+#define BIT23 (1<<23)
+#define BIT24 (1<<24)
+#define BIT25 (1<<25)
+#define BIT26 (1<<26)
+#define BIT27 (1<<27)
+#define BIT28 (1<<28)
+#define BIT29 (1<<29)
+#define BIT30 (1<<30)
+#define BIT31 (1<<31)
+
+#endif