libubb/: helper library for UBB access

libubb/include/ubb/ubb.h

@@ -0,0 +1,44 @@
+/*
+ * include/ubb/ubb.h - Access functions for the Universal Breakout Board
+ *
+ * Written 2012 by Werner Almesberger
+ * Copyright 2012 Werner Almesberger
+ *
+ * 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.
+ */
+
+#ifndef UBB_UBB_H
+#define	UBB_UBB_H
+
+#include <stdint.h>
+
+#include <ubb/regbase.h>
+
+
+#define	UBB_nPWR	(1 << 2)	/* PD02 */
+#define	UBB_DAT2	(1 << 12)	/* PD12 */
+#define	UBB_DAT3	(1 << 13)	/* PD13 */
+#define	UBB_CMD		(1 << 8)	/* PD08 */
+#define	UBB_CLK		(1 << 9)	/* PD09 */
+#define	UBB_DAT0	(1 << 10)	/* PD10 */
+#define	UBB_DAT1	(1 << 11)	/* PD11 */
+
+#define	UBB_ALL_IO	(UBB_DAT2 | UBB_DAT3 | UBB_CMD | UBB_CLK | UBB_DAT0 | \
+			UBB_DAT1)
+#define	UBB_ALL		(UBB_nPWR | UBB_ALL_IO)
+
+#define SET(mask)	PDDATS = (mask)
+#define CLR(mask)	PDDATC = (mask)
+#define OUT(mask)	PDDIRS = (mask)
+#define IN(mask)	PDDIRC = (mask)
+#define PIN(mask)	(!!(PDPIN & (mask)))
+
+
+int ubb_open(uint32_t keep);
+void ubb_power(int on);
+void ubb_close(uint32_t keep);
+
+#endif /* !UBB_UBB_H */