moves 'shared_timer_handler' back to atmel-samd from samd-peripherals

1 files changed, 52 insertions, 0 deletions

diff --git a/ports/atmel-samd/timer_handler.c b/ports/atmel-samd/timer_handler.c
new file mode 100644
index 000000000..bb0d248b5
--- /dev/null
+++ b/ports/atmel-samd/timer_handler.c
@@ -0,0 +1,52 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "timer_handler.h"
+
+#include "common-hal/pulseio/PulseOut.h"
+#include "common-hal/pulseio/FrequencyIn.h"
+
+static uint8_t tc_handler[TC_INST_NUM];
+
+void set_timer_handler(uint8_t index, uint8_t timer_handler) {
+    tc_handler[index] = timer_handler;
+}
+
+void shared_timer_handler(bool is_tc, uint8_t index) {
+    // Add calls to interrupt handlers for specific functionality here.
+    // Make sure to add the handler #define to timer_handler.h
+    if (is_tc) {
+        uint8_t handler = tc_handler[index];
+        if (handler == TC_HANDLER_PULSEOUT) {
+            pulseout_interrupt_handler(index);
+        } else if (handler == TC_HANDLER_FREQUENCYIN) {
+            frequencyin_interrupt_handler(index);
+        }
+    }
+}