Import of the watch repository from Pebble

src/fw/services/common/status_led.c

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+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "services/common/status_led.h"
+#include "system/passert.h"
+#include "services/common/battery/battery_curve.h"
+#include "drivers/led_controller.h"
+#include "board/board.h"
+#include "system/passert.h"
+
+#if CAPABILITY_HAS_LED
+
+static uint32_t s_led_color = LED_BLACK;
+
+void status_led_set(StatusLedState state) {
+  PBL_ASSERTN(state < StatusLedStateCount);
+
+  static const uint32_t STATE_COLOR_MAPPING[] = {
+    [StatusLedState_Off] = LED_BLACK,
+    [StatusLedState_Charging] = LED_DIM_ORANGE,
+    [StatusLedState_FullyCharged] = LED_DIM_GREEN
+  };
+
+  const uint32_t new_color = STATE_COLOR_MAPPING[state];
+
+  if (new_color == s_led_color) {
+    return;
+  }
+
+  s_led_color = new_color;
+
+  // Tell the battery curve service to account for the updated LED state.
+  int compenstation_mv = 0;
+  if (s_led_color != LED_BLACK) {
+    compenstation_mv = BOARD_CONFIG_POWER.charging_status_led_voltage_compensation;
+  }
+  battery_curve_set_compensation(BATTERY_CURVE_COMPENSATE_STATUS_LED, compenstation_mv);
+
+  led_controller_rgb_set_color(s_led_color);
+}
+
+#else
+
+void status_led_set(StatusLedState state) {
+  // No LED present, do nothing!
+}
+
+#endif // CAPABILITY_HAS_LED