1 files changed, 72 insertions, 0 deletions
diff --git a/libopencm3/lib/lpc43xx/timer.c b/libopencm3/lib/lpc43xx/timer.c
new file mode 100644
index 0000000..f263c24
--- /dev/null
+++ b/libopencm3/lib/lpc43xx/timer.c
@@ -0,0 +1,72 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2013 Ben Gamari <bgamari@physics.umass.edu>
+ *
+ * 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/>.
+ *
+ * This provides the code for the "next gen" EXTI block provided in F2/F4/L1
+ * devices.  (differences only in the source selection)
+ */
+
+#include <libopencm3/lpc43xx/timer.h>
+
+void timer_reset(uint32_t timer_peripheral)
+{
+	TIMER_TCR(timer_peripheral) |= TIMER_TCR_CRST;
+	TIMER_TCR(timer_peripheral) &= ~TIMER_TCR_CRST;
+}
+
+void timer_enable_counter(uint32_t timer_peripheral)
+{
+	TIMER_TCR(timer_peripheral) |= TIMER_TCR_CEN;
+}
+
+void timer_disable_counter(uint32_t timer_peripheral)
+{
+	TIMER_TCR(timer_peripheral) &= ~TIMER_TCR_CEN;
+}
+
+void timer_set_counter(uint32_t timer_peripheral, uint32_t count)
+{
+	TIMER_TC(timer_peripheral) = count;
+}
+
+uint32_t timer_get_counter(uint32_t timer_peripheral)
+{
+	return TIMER_TC(timer_peripheral);
+}
+
+uint32_t timer_get_prescaler(uint32_t timer_peripheral)
+{
+	return TIMER_PR(timer_peripheral);
+}
+
+void timer_set_prescaler(uint32_t timer_peripheral, uint32_t prescaler)
+{
+	TIMER_PR(timer_peripheral) = prescaler;
+}
+
+void timer_set_mode(uint32_t timer_peripheral, uint32_t mode)
+{
+	TIMER_CTCR(timer_peripheral) = mode |
+		(TIMER_CTCR(timer_peripheral) & TIMER_CTCR_MODE_MASK);
+}
+
+void timer_set_count_input(uint32_t timer_peripheral, uint32_t input)
+{
+	TIMER_CTCR(timer_peripheral) = input |
+		(TIMER_CTCR(timer_peripheral) & TIMER_CTCR_CINSEL_MASK);
+}
+