Pixoo: support "clap hands to turn off screen" and "sleep after silence" settings

Also fix crc calculation :P

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/devicesettings/DeviceSettingsPreferenceConst.java

@@ -396,4 +396,6 @@ public class DeviceSettingsPreferenceConst {
     public static final String PREF_DEVICE_ACTION_WOKE_UP_BROADCAST = "prefs_events_forwarding_wokeup_broadcast";
     public static final String PREF_DEVICE_ACTION_START_NON_WEAR_SELECTIONS = "events_forwarding_startnonwear_action_selections";
     public static final String PREF_DEVICE_ACTION_START_NON_WEAR_BROADCAST = "prefs_events_forwarding_startnonwear_broadcast";
+    public static final String PREF_CLAP_HANDS_TO_WAKEUP_DEVICE = "pref_key_clap_hands_to_wakeup_device";
+    public static final String PREF_POWER_SAVING = "pref_key_power_saving";
 }

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/devicesettings/DeviceSpecificSettingsFragment.java

@@ -324,7 +324,6 @@ public class DeviceSpecificSettingsFragment extends AbstractPreferenceFragment i
         }
 
 
-
         addPreferenceHandlerFor(PREF_SWIPE_UNLOCK);
         addPreferenceHandlerFor(PREF_MI2_DATEFORMAT);
         addPreferenceHandlerFor(PREF_DATEFORMAT);
@@ -566,6 +565,9 @@ public class DeviceSpecificSettingsFragment extends AbstractPreferenceFragment i
         addPreferenceHandlerFor(PREF_SLEEP_MODE_SCHEDULE_START);
         addPreferenceHandlerFor(PREF_SLEEP_MODE_SCHEDULE_END);
 
+        addPreferenceHandlerFor(PREF_CLAP_HANDS_TO_WAKEUP_DEVICE);
+        addPreferenceHandlerFor(PREF_POWER_SAVING);
+
         addPreferenceHandlerFor("lock");
 
         String sleepTimeState = prefs.getString(PREF_SLEEP_TIME, PREF_DO_NOT_DISTURB_OFF);

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/divoom/PixooCoordinator.java

@@ -79,6 +79,7 @@ public class PixooCoordinator extends AbstractBLEDeviceCoordinator {
     @Override
     public int[] getSupportedDeviceSpecificSettings(GBDevice device) {
         return new int[]{
+                R.xml.devicesettings_pixoo,
                 R.xml.devicesettings_screen_brightness,
                 R.xml.devicesettings_timeformat,
         };

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/divoom/PixooProtocol.java

@@ -174,6 +174,20 @@ public class PixooProtocol extends GBDeviceProtocol {
                         0x2d,
                         (byte) (is24hour ? 1 : 0),
                 });
+            case DeviceSettingsPreferenceConst.PREF_CLAP_HANDS_TO_WAKEUP_DEVICE:
+                boolean clap = prefs.getBoolean(DeviceSettingsPreferenceConst.PREF_CLAP_HANDS_TO_WAKEUP_DEVICE, false);
+
+                return encodeProtocol(new byte[]{
+                        (byte) 0xa7,
+                        (byte) (clap ? 1 : 0),
+                });
+            case DeviceSettingsPreferenceConst.PREF_POWER_SAVING:
+                boolean power_saving = prefs.getBoolean(DeviceSettingsPreferenceConst.PREF_POWER_SAVING, false);
+
+                return encodeProtocol(new byte[]{
+                        (byte) 0xb2,
+                        (byte) (power_saving ? 1 : 0),
+                });
 
         }
 
@@ -363,7 +377,7 @@ public class PixooProtocol extends GBDeviceProtocol {
         msgBuf.put(payload);
         short crc = (short) (((payload.length + 2) & 0xff) + ((payload.length + 2) >> 8));
         for (byte b : payload) {
-            crc += b;
+            crc += (b & 0xff);
         }
         msgBuf.putShort(crc);
         msgBuf.put((byte) 0x02);

app/src/main/res/values/strings.xml

@@ -493,6 +493,10 @@
     <string name="zetime_signaling_beep_once">Beep once</string>
     <string name="zetime_signaling_beep_twice">Beep twice</string>
     <string name="zetime_signaling_vibrate_beep_once">Vibrate and beep once</string>
+    <!-- pixoo specific settings -->
+    <string name="clap_hands_to_wakeup_device">Clap hands to turn up screen</string>"
+    <string name="clap_hands_to_wakeup_device_summary">Clapping again will turn off the screen</string>"
+    <string name="pixoo_power_saving_summary">The screen will turn off after the microphone has detected silence for a while</string>
     <!-- Device specific settings -->
     <string name="title_activity_device_specific_settings">Device specific settings</string>
     <string name="pref_title_authkey">Auth Key</string>