refactor: break out different areas of functionality

watch-library/watch/watch_led.c

@@ -0,0 +1,95 @@
+/*
+ * 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.
+ */
+
+ bool PWM_0_enabled = false;
+
+void watch_enable_led(bool pwm) {
+    if (pwm) {
+        if (PWM_0_enabled) return;
+
+        PWM_0_init();
+        pwm_set_parameters(&PWM_0, 10000, 0);
+        pwm_enable(&PWM_0);
+
+        PWM_0_enabled = true;
+    } else {
+        watch_enable_digital_output(RED);
+        watch_enable_digital_output(GREEN);
+    }
+    watch_set_led_off();
+}
+
+void watch_disable_led(bool pwm) {
+    if (pwm) {
+        if (!PWM_0_enabled) return;
+        pwm_disable(&PWM_0);
+        PWM_0_enabled = false;
+    }
+
+    watch_disable_digital_output(RED);
+    watch_disable_digital_output(GREEN);
+}
+
+void watch_set_led_color(uint16_t red, uint16_t green) {
+    if (PWM_0_enabled) {
+        TC3->COUNT16.CC[0].reg = red;
+        TC3->COUNT16.CC[1].reg = green;
+    }
+}
+
+void watch_set_led_red() {
+    if (PWM_0_enabled) {
+        watch_set_led_color(65535, 0);
+    } else {
+        watch_set_pin_level(RED, true);
+        watch_set_pin_level(GREEN, false);
+    }
+}
+
+void watch_set_led_green() {
+    if (PWM_0_enabled) {
+        watch_set_led_color(65535, 0);
+    } else {
+        watch_set_pin_level(RED, false);
+        watch_set_pin_level(GREEN, true);
+    }
+}
+
+void watch_set_led_yellow() {
+    if (PWM_0_enabled) {
+        watch_set_led_color(65535, 65535);
+    } else {
+        watch_set_pin_level(RED, true);
+        watch_set_pin_level(GREEN, true);
+    }
+}
+
+void watch_set_led_off() {
+    if (PWM_0_enabled) {
+        watch_set_led_color(0, 0);
+    } else {
+        watch_set_pin_level(RED, false);
+        watch_set_pin_level(GREEN, false);
+    }
+}