sam3x support.

lib/sam3x/pio.c

@@ -0,0 +1,28 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2012 Gareth McMullin <gareth@blacksphere.co.nz>
+ *
+ * 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/>.
+ */
+
+#include <libopencm3/sam3x/pio.h>
+
+void pio_toggle(u32 gpioport, u32 gpios)
+{
+	u32 odsr = PIO_ODSR(gpioport);
+	PIO_CODR(gpioport) = odsr & gpios;
+	PIO_SODR(gpioport) = ~odsr & gpios;
+}
+