enable backlight adjustment for replicant 11

5 files changed, 592 insertions, 1 deletions

diff --git a/BoardConfigCommon.mk b/BoardConfigCommon.mk
index 0a5d355..ee8b462 100644
--- a/BoardConfigCommon.mk
+++ b/BoardConfigCommon.mk
@@ -62,5 +62,6 @@ DEVICE_MANIFEST_FILE := device/samsung/midas-common/manifest.xml
 PRODUCT_FULL_TREBLE_OVERRIDE := true
 BUILD_BROKEN_USES_BUILD_HOST_STATIC_LIBRARY := true
 BOARD_VENDOR_SEPOLICY_DIRS += device/samsung/midas-common/sepolicy
+TARGET_KERNEL_CLANG_COMPILE := true
 
 -include vendor/replicant/config/BoardConfigReplicant.mk
diff --git a/liblight/Android.mk b/liblight/Android.mk
new file mode 100644
index 0000000..bf309b1
--- /dev/null
+++ b/liblight/Android.mk
@@ -0,0 +1,31 @@
+# Copyright (C) 2016 The Android Open Source 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.
+
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := lights.c
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_PROPRIETARY_MODULE := true
+LOCAL_HEADER_LIBRARIES := libhardware_headers
+LOCAL_SHARED_LIBRARIES := libc libcutils liblog
+LOCAL_CFLAGS := $(common_flags) \
+    -DLOG_TAG=\"qdlights\" \
+    -DDEFAULT_LOW_PERSISTENCE_MODE_BRIGHTNESS=$(DEFAULT_LOW_PERSISTENCE_MODE_BRIGHTNESS)
+LOCAL_CFLAGS += -Wall -Werror
+LOCAL_MODULE := lights.wahoo
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/liblight/NOTICE b/liblight/NOTICE
new file mode 100644
index 0000000..7340b9e
--- /dev/null
+++ b/liblight/NOTICE
@@ -0,0 +1,190 @@
+
+   Copyright (c) 2008, The Android Open Source Project
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+
+   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.
+
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
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+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
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+      including but not limited to software source code, documentation
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+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
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+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
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+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
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+      (d) If the Work includes a "NOTICE" text file as part of its
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+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
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+   9. Accepting Warranty or Additional Liability. While redistributing
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+      defend, and hold each Contributor harmless for any liability
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+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
diff --git a/liblight/lights.c b/liblight/lights.c
new file mode 100644
index 0000000..bece81e
--- /dev/null
+++ b/liblight/lights.c
@@ -0,0 +1,360 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * Copyright (C) 2014 The  Linux Foundation. All rights reserved.
+ *
+ * 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 <cutils/log.h>
+#include <cutils/properties.h>
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+
+#include <sys/ioctl.h>
+#include <sys/types.h>
+
+#include <hardware/lights.h>
+
+/*
+ * Change this to 1 to support battery notifications via BatteryService
+ */
+#define LIGHTS_SUPPORT_BATTERY 0
+#define CG_COLOR_ID_PROPERTY "ro.boot.hardware.color"
+
+static pthread_once_t g_init = PTHREAD_ONCE_INIT;
+static pthread_mutex_t g_lock = PTHREAD_MUTEX_INITIALIZER;
+static struct light_state_t g_notification;
+static struct light_state_t g_battery;
+static int g_attention = 0;
+static int rgb_brightness_ratio = 255;
+
+char const*const RED_LED_FILE
+        = "/sys/class/leds/red/brightness";
+
+char const*const GREEN_LED_FILE
+        = "/sys/class/leds/green/brightness";
+
+char const*const BLUE_LED_FILE
+        = "/sys/class/leds/blue/brightness";
+
+char const*const LCD_FILE
+        = "/sys/class/backlight/panel/brightness";
+
+char const*const PERSISTENCE_FILE
+        = "/sys/class/graphics/fb0/msm_fb_persist_mode";
+
+char const*const RED_BLINK_FILE
+        = "/sys/class/leds/red/blink";
+
+char const*const GREEN_BLINK_FILE
+        = "/sys/class/leds/green/blink";
+
+char const*const BLUE_BLINK_FILE
+        = "/sys/class/leds/blue/blink";
+
+char const*const RED_ON_OFF_MS_FILE
+        = "/sys/class/leds/red/on_off_ms";
+
+char const*const GREEN_ON_OFF_MS_FILE
+        = "/sys/class/leds/green/on_off_ms";
+
+char const*const BLUE_ON_OFF_MS_FILE
+        = "/sys/class/leds/blue/on_off_ms";
+
+char const*const RED_RGB_START_FILE
+        = "/sys/class/leds/red/rgb_start";
+
+char const*const GREEN_RGB_START_FILE
+        = "/sys/class/leds/green/rgb_start";
+
+char const*const BLUE_RGB_START_FILE
+        = "/sys/class/leds/blue/rgb_start";
+
+/**
+ * device methods
+ */
+
+void init_globals(void)
+{
+    char color_id_prop[PROPERTY_VALUE_MAX] = {""};
+
+    // init the mutex
+    pthread_mutex_init(&g_lock, NULL);
+
+    // check CG color
+    property_get(CG_COLOR_ID_PROPERTY, color_id_prop, "DEF00");
+    if (strcmp(color_id_prop, "GRA00") == 0) {
+        rgb_brightness_ratio = 25;
+    } else if (strcmp(color_id_prop, "SLV00") == 0) {
+        rgb_brightness_ratio = 15;
+    } else if (strcmp(color_id_prop, "BLU00") == 0) {
+        rgb_brightness_ratio = 15;
+    } else {
+        rgb_brightness_ratio = 20;
+    }
+}
+
+static int
+write_int(char const* path, int value)
+{
+    int fd;
+    static int already_warned = 0;
+
+    fd = open(path, O_WRONLY);
+    if (fd >= 0) {
+        char buffer[20];
+        size_t bytes = snprintf(buffer, sizeof(buffer), "%d\n", value);
+        if(bytes >= sizeof(buffer)) return -EINVAL;
+        ssize_t amt = write(fd, buffer, bytes);
+        close(fd);
+        return amt == -1 ? -errno : 0;
+    } else {
+        if (already_warned == 0) {
+            ALOGE("write_int failed to open %s\n", path);
+            already_warned = 1;
+        }
+        return -errno;
+    }
+}
+
+static int
+write_double_int(char const* path, int value1, int value2)
+{
+    int fd;
+    static int already_warned = 0;
+
+    fd = open(path, O_WRONLY);
+    if (fd >= 0) {
+        char buffer[20];
+        size_t bytes = snprintf(buffer, sizeof(buffer), "%d %d\n", value1, value2);
+        if(bytes >= sizeof(buffer)) return -EINVAL;
+        ssize_t amt = write(fd, buffer, bytes);
+        close(fd);
+        return amt == -1 ? -errno : 0;
+    } else {
+        if (already_warned == 0) {
+            ALOGE("write_int failed to open %s\n", path);
+            already_warned = 1;
+        }
+        return -errno;
+    }
+}
+
+static int
+is_lit(struct light_state_t const* state)
+{
+    return state->color & 0x00ffffff;
+}
+
+static int
+rgb_to_brightness(struct light_state_t const* state)
+{
+    int color = state->color & 0x00ffffff;
+    return ((77*((color>>16)&0x00ff))
+            + (150*((color>>8)&0x00ff)) + (29*(color&0x00ff))) >> 8;
+}
+
+static int
+set_light_backlight(struct light_device_t* dev,
+        struct light_state_t const* state)
+{
+    int err = 0;
+    int brightness = rgb_to_brightness(state);
+    brightness = (int)(brightness * 24.f / 255);
+
+    (void)dev;
+
+    pthread_mutex_lock(&g_lock);
+    write_int(LCD_FILE, brightness);
+    pthread_mutex_unlock(&g_lock);
+
+    return err;
+}
+
+static int
+set_speaker_light_locked(struct light_device_t* dev,
+        struct light_state_t const* state)
+{
+    int red, green, blue;
+    int onMS, offMS;
+    unsigned int colorRGB;
+
+    if(!dev) {
+        return -1;
+    }
+
+    switch (state->flashMode) {
+        case LIGHT_FLASH_TIMED:
+            onMS = state->flashOnMS;
+            offMS = state->flashOffMS;
+            break;
+        case LIGHT_FLASH_NONE:
+        default:
+            onMS = 0;
+            offMS = 0;
+            break;
+    }
+
+    colorRGB = state->color;
+
+#if 0
+    ALOGD("set_speaker_light_locked mode %d, colorRGB=%08X, onMS=%d, offMS=%d\n",
+            state->flashMode, colorRGB, onMS, offMS);
+#endif
+
+    red = ((colorRGB >> 16) & 0xFF) * rgb_brightness_ratio / 255;
+    green = ((colorRGB >> 8) & 0xFF) * rgb_brightness_ratio / 255;
+    blue = (colorRGB & 0xFF) * rgb_brightness_ratio / 255;
+
+    write_double_int(RED_ON_OFF_MS_FILE, onMS, offMS);
+    write_int(RED_LED_FILE, red);
+    write_double_int(GREEN_ON_OFF_MS_FILE, onMS, offMS);
+    write_int(GREEN_LED_FILE, green);
+    write_double_int(BLUE_ON_OFF_MS_FILE, onMS, offMS);
+    write_int(BLUE_LED_FILE, blue);
+
+    if(!write_int(RED_RGB_START_FILE, 1))
+        if(!write_int(GREEN_RGB_START_FILE, 1))
+            if(!write_int(BLUE_RGB_START_FILE, 1))
+                return -1;
+
+    return 0;
+}
+
+static void
+handle_speaker_battery_locked(struct light_device_t* dev)
+{
+    if (is_lit(&g_battery)) {
+        set_speaker_light_locked(dev, &g_battery);
+    } else {
+        set_speaker_light_locked(dev, &g_notification);
+    }
+}
+
+#if LIGHTS_SUPPORT_BATTERY
+static int
+set_light_battery(struct light_device_t* dev,
+        struct light_state_t const* state)
+{
+    pthread_mutex_lock(&g_lock);
+    g_battery = *state;
+    handle_speaker_battery_locked(dev);
+    pthread_mutex_unlock(&g_lock);
+    return 0;
+}
+#endif
+
+static int
+set_light_notifications(struct light_device_t* dev,
+        struct light_state_t const* state)
+{
+    pthread_mutex_lock(&g_lock);
+    g_notification = *state;
+    handle_speaker_battery_locked(dev);
+    pthread_mutex_unlock(&g_lock);
+    return 0;
+}
+
+static int
+set_light_attention(struct light_device_t* dev,
+        struct light_state_t const* state)
+{
+    pthread_mutex_lock(&g_lock);
+    if (state->flashMode == LIGHT_FLASH_HARDWARE) {
+        g_attention = state->flashOnMS;
+    } else if (state->flashMode == LIGHT_FLASH_NONE) {
+        g_attention = 0;
+    }
+    handle_speaker_battery_locked(dev);
+    pthread_mutex_unlock(&g_lock);
+    return 0;
+}
+
+/** Close the lights device */
+static int
+close_lights(struct light_device_t *dev)
+{
+    if (dev) {
+        free(dev);
+    }
+    return 0;
+}
+
+
+/******************************************************************************/
+
+/**
+ * module methods
+ */
+
+/** Open a new instance of a lights device using name */
+static int open_lights(const struct hw_module_t* module, char const* name,
+        struct hw_device_t** device)
+{
+    int (*set_light)(struct light_device_t* dev,
+            struct light_state_t const* state);
+
+    if (0 == strcmp(LIGHT_ID_BACKLIGHT, name))
+        set_light = set_light_backlight;
+#if LIGHTS_SUPPORT_BATTERY
+    else if (0 == strcmp(LIGHT_ID_BATTERY, name))
+        set_light = set_light_battery;
+#endif
+    else if (0 == strcmp(LIGHT_ID_NOTIFICATIONS, name))
+        set_light = set_light_notifications;
+    else if (0 == strcmp(LIGHT_ID_ATTENTION, name))
+        set_light = set_light_attention;
+    else
+        return -EINVAL;
+
+    pthread_once(&g_init, init_globals);
+
+    struct light_device_t *dev = malloc(sizeof(struct light_device_t));
+
+    if(!dev)
+        return -ENOMEM;
+
+    memset(dev, 0, sizeof(*dev));
+
+    dev->common.tag = HARDWARE_DEVICE_TAG;
+    dev->common.version = LIGHTS_DEVICE_API_VERSION_2_0;
+    dev->common.module = (struct hw_module_t*)module;
+    dev->common.close = (int (*)(struct hw_device_t*))close_lights;
+    dev->set_light = set_light;
+
+    *device = (struct hw_device_t*)dev;
+    return 0;
+}
+
+static struct hw_module_methods_t lights_module_methods = {
+    .open =  open_lights,
+};
+
+/*
+ * The lights Module
+ */
+struct hw_module_t HAL_MODULE_INFO_SYM = {
+    .tag = HARDWARE_MODULE_TAG,
+    .version_major = 1,
+    .version_minor = 0,
+    .id = LIGHTS_HARDWARE_MODULE_ID,
+    .name = "lights Module",
+    .author = "Google, Inc.",
+    .methods = &lights_module_methods,
+};
diff --git a/manifest.xml b/manifest.xml
index 5317f85..6160862 100644
--- a/manifest.xml
+++ b/manifest.xml
@@ -15,7 +15,7 @@
      limitations under the License.
 -->
 
-<manifest version="1.0" type="device" target-level="5">
+<manifest version="1.0" type="device" target-level="6">
     <hal>
         <name>android.hardware.graphics.mapper</name>
         <transport arch="32+64">passthrough</transport>
@@ -35,6 +35,15 @@
         </interface>
     </hal>
     <hal format="hidl">
+	    <name>android.hardware.light</name>
+	    <transport>hwbinder</transport>
+	    <version>2.0</version>
+	    <interface>
+		    <name>ILight</name>
+		    <instance>default</instance>
+	    </interface>
+    </hal>
+    <hal format="hidl">
         <name>android.hardware.audio.effect</name>
         <transport>hwbinder</transport>
         <version>6.0</version>