sdm845-common: Add support for display modes and HBM

Change-Id: Ic93612e6ffeb0103778bd05bfd1c2921e433cd9f

lineagehw/org/lineageos/hardware/DisplayModeControl.java

@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2015 The CyanogenMod Project
+ * Copyright (C) 2018 The LineageOS Project
+ *
+ * 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.
+ */
+
+package org.lineageos.hardware;
+
+import android.util.Log;
+
+import lineageos.hardware.DisplayMode;
+import org.lineageos.internal.util.FileUtils;
+
+import java.util.HashMap;
+
+/*
+ * Display Modes API
+ *
+ * A device may implement a list of preset display modes for different
+ * viewing intents, such as movies, photos, or extra vibrance. These
+ * modes may have multiple components such as gamma correction, white
+ * point adjustment, etc, but are activated by a single control point.
+ *
+ * This API provides support for enumerating and selecting the
+ * modes supported by the hardware.
+ */
+
+public class DisplayModeControl {
+    private static final String MODE_PATH =
+            "/sys/devices/platform/soc/ae00000.qcom,mdss_mdp/main_display/display_mode";
+    private static final String DEFAULT_PATH = "/data/system/default_display_mode";
+
+    private static final HashMap<String, DisplayMode> MODE_MAP = new HashMap<>();
+    static {
+        MODE_MAP.put("default", new DisplayMode(0, "Standard"));
+        MODE_MAP.put("srgb", new DisplayMode(1, "sRGB"));
+        MODE_MAP.put("dci-p3", new DisplayMode(2, "DCI P3"));
+        MODE_MAP.put("adaption", new DisplayMode(3, "Adaptive"));
+
+        String storedDefaultMode = FileUtils.readOneLine(DEFAULT_PATH);
+        if (storedDefaultMode != null) {
+            FileUtils.writeLine(MODE_PATH, storedDefaultMode);
+        }
+    }
+
+    /*
+     * All HAF classes should export this boolean.
+     * Real implementations must, of course, return true
+     */
+    public static boolean isSupported() {
+        return FileUtils.isFileWritable(MODE_PATH);
+    }
+
+    /*
+     * Get the list of available modes. A mode has an integer
+     * identifier and a string name.
+     *
+     * It is the responsibility of the upper layers to
+     * map the name to a human-readable format or perform translation.
+     */
+    public static DisplayMode[] getAvailableModes() {
+        return MODE_MAP.values().toArray(new DisplayMode[MODE_MAP.size()]);
+    }
+
+    /*
+     * Get the name of the currently selected mode. This can return
+     * null if no mode is selected.
+     */
+    public static DisplayMode getCurrentMode() {
+        return MODE_MAP.get(FileUtils.readOneLine(MODE_PATH));
+    }
+
+    /*
+     * Selects a mode from the list of available modes by it's
+     * string identifier. Returns true on success, false for
+     * failure. It is up to the implementation to determine
+     * if this mode is valid.
+     */
+    public static boolean setMode(DisplayMode mode, boolean makeDefault) {
+        for (HashMap.Entry<String, DisplayMode> entry : MODE_MAP.entrySet()) {
+            if (entry.getValue().id == mode.id) {
+                if (FileUtils.writeLine(MODE_PATH, entry.getKey()) && makeDefault) {
+                    FileUtils.writeLine(DEFAULT_PATH, entry.getKey());
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    /*
+     * Gets the preferred default mode for this device by it's
+     * string identifier. Can return null if there is no default.
+     */
+    public static DisplayMode getDefaultMode() {
+        String storedDefaultMode = FileUtils.readOneLine(DEFAULT_PATH);
+        return MODE_MAP.get(storedDefaultMode != null ? storedDefaultMode : "default");
+    }
+}

lineagehw/org/lineageos/hardware/SunlightEnhancement.java

@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2014 The CyanogenMod Project
+ * Copyright (C) 2018 The LineageOS Project
+ *
+ * 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.
+ */
+
+package org.lineageos.hardware;
+
+import android.util.Log;
+
+import org.lineageos.internal.util.FileUtils;
+
+public class SunlightEnhancement {
+    private static final String TAG = "SunlightEnhancement";
+
+    private static final String HBM_PATH =
+            "/sys/devices/platform/soc/ae00000.qcom,mdss_mdp/main_display/hbm";
+
+    /**
+     * Whether device supports sunlight enhancement
+     *
+     * @return boolean Supported devices must return always true
+     */
+    public static boolean isSupported() {
+        return FileUtils.isFileWritable(HBM_PATH);
+    }
+
+    /**
+     * This method return the current activation status of sunlight enhancement
+     *
+     * @return boolean Must be false when sunlight enhancement is not supported or not activated,
+     * or the operation failed while reading the status; true in any other case.
+     */
+    public static boolean isEnabled() {
+        try {
+            return Integer.parseInt(FileUtils.readOneLine(HBM_PATH)) > 0;
+        } catch (Exception e) {
+            Log.e(TAG, e.getMessage(), e);
+        }
+        return false;
+    }
+
+    /**
+     * This method allows to setup sunlight enhancement
+     *
+     * @param status The new sunlight enhancement status
+     * @return boolean Must be false if sunlight enhancement is not supported or the operation
+     * failed; true in any other case.
+     */
+    public static boolean setEnabled(boolean status) {
+        return FileUtils.writeLine(HBM_PATH, status ? "3" : "0");
+    }
+
+    /**
+     * Whether adaptive backlight (CABL / CABC) is required to be enabled
+     *
+     * @return boolean False if adaptive backlight is not a dependency
+     */
+    public static boolean isAdaptiveBacklightRequired() {
+        return false;
+    }
+
+    /**
+     * Set this to true if the implementation is self-managed and does
+     * it's own ambient sensing. In this case, setEnabled is assumed
+     * to toggle the feature on or off, but not activate it. If set
+     * to false, LiveDisplay will call setEnabled when the ambient lux
+     * threshold is crossed.
+     *
+     * @return true if this enhancement is self-managed
+     */
+    public static boolean isSelfManaged() {
+        return false;
+    }
+}

rootdir/etc/init.qcom.rc

@@ -32,6 +32,11 @@ on boot
     chown system system /proc/touchpanel/up_arrow_enable
     chown system system /proc/touchpanel/up_swipe_enable
 
+    chmod 0660 /sys/devices/platform/soc/ae00000.qcom,mdss_mdp/main_display/display_mode
+    chmod 0660 /sys/devices/platform/soc/ae00000.qcom,mdss_mdp/main_display/hbm
+    chown system system /sys/devices/platform/soc/ae00000.qcom,mdss_mdp/main_display/display_mode
+    chown system system /sys/devices/platform/soc/ae00000.qcom,mdss_mdp/main_display/hbm
+
 service dashd /sbin/dashd
     class core
     critical