1 files changed, 69 insertions, 0 deletions
diff --git a/watch-library/hardware/watch/watch_led.c b/watch-library/hardware/watch/watch_led.c
new file mode 100644
index 00000000..52174b54
--- /dev/null
+++ b/watch-library/hardware/watch/watch_led.c
@@ -0,0 +1,69 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020 Joey Castillo
+ *
+ * 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 "watch_led.h"
+
+void watch_enable_leds(void) {
+    if (!hri_tcc_get_CTRLA_reg(TCC0, TCC_CTRLA_ENABLE)) {
+        _watch_enable_tcc();
+    }
+}
+
+void watch_disable_leds(void) {
+    _watch_disable_tcc();
+}
+
+void watch_enable_led(bool unused) {
+    (void)unused;
+    watch_enable_leds();
+}
+
+void watch_disable_led(bool unused) {
+    (void)unused;
+    watch_disable_leds();
+}
+
+void watch_set_led_color(uint8_t red, uint8_t green) {
+    if (hri_tcc_get_CTRLA_reg(TCC0, TCC_CTRLA_ENABLE)) {
+        uint32_t period = hri_tcc_get_PER_reg(TCC0, TCC_PER_MASK);
+        hri_tcc_write_CCBUF_reg(TCC0, WATCH_RED_TCC_CHANNEL, ((period * red * 1000ull) / 255000ull));
+        hri_tcc_write_CCBUF_reg(TCC0, WATCH_GREEN_TCC_CHANNEL, ((period * green * 1000ull) / 255000ull));
+    }
+}
+
+void watch_set_led_red(void) {
+    watch_set_led_color(255, 0);
+}
+
+void watch_set_led_green(void) {
+    watch_set_led_color(0, 255);
+}
+
+void watch_set_led_yellow(void) {
+    watch_set_led_color(255, 255);
+}
+
+void watch_set_led_off(void) {
+    watch_set_led_color(0, 0);
+}