clover: Add libinit module for clover

device.mk

@@ -29,6 +29,10 @@ DEVICE_PATH := device/xiaomi/clover
 PRODUCT_COPY_FILES += \
     frameworks/native/data/etc/tablet_core_hardware.xml:$(TARGET_COPY_OUT_VENDOR)/etc/permissions/tablet_core_hardware.xml 
 
+# Init
+PRODUCT_PACKAGES += \
+	libinit_clover
+
 # IRSC
 PRODUCT_COPY_FILES += \
     $(DEVICE_PATH)/configs/sec_config:$(TARGET_COPY_OUT_VENDOR)/etc/sec_config

init/Android.mk

@@ -0,0 +1,29 @@
+#
+# Copyright 2018 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 $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+LOCAL_C_INCLUDES := \
+    system/core/base/include \
+    system/core/init
+LOCAL_CFLAGS := -Wall -DANDROID_TARGET=\"$(TARGET_BOARD_PLATFORM)\"
+LOCAL_SRC_FILES := init_clover.cpp
+LOCAL_MODULE := libinit_clover
+
+include $(BUILD_STATIC_LIBRARY)

init/init_clover.cpp

@@ -0,0 +1,106 @@
+/*
+#
+# Copyright 2018 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.
+#
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <android-base/file.h>
+#include <android-base/properties.h>
+#include <android-base/strings.h>
+#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
+#include <sys/_system_properties.h>
+
+#include "property_service.h"
+#include "vendor_init.h"
+
+using android::base::GetProperty;
+using android::base::ReadFileToString;
+using android::base::Trim;
+using android::init::property_set;
+
+void property_override(char const prop[], char const value[])
+{
+    prop_info *pi;
+
+    pi = (prop_info*) __system_property_find(prop);
+    if (pi)
+        __system_property_update(pi, value, strlen(value));
+    else
+        __system_property_add(prop, strlen(prop), value, strlen(value));
+}
+
+void property_override_dual(char const system_prop[],
+        char const vendor_prop[], char const value[])
+{
+    property_override(system_prop, value);
+    property_override(vendor_prop, value);
+}
+
+static void init_alarm_boot_properties()
+{
+    char const *boot_reason_file = "/proc/sys/kernel/boot_reason";
+    char const *power_off_alarm_file = "/persist/alarm/powerOffAlarmSet";
+    std::string boot_reason;
+    std::string power_off_alarm;
+    std::string reboot_reason = GetProperty("ro.boot.alarmboot", "");
+
+    if (ReadFileToString(boot_reason_file, &boot_reason)
+            && ReadFileToString(power_off_alarm_file, &power_off_alarm)) {
+        /*
+         * Setup ro.alarm_boot value to true when it is RTC triggered boot up
+         * For existing PMIC chips, the following mapping applies
+         * for the value of boot_reason:
+         *
+         * 0 -> unknown
+         * 1 -> hard reset
+         * 2 -> sudden momentary power loss (SMPL)
+         * 3 -> real time clock (RTC)
+         * 4 -> DC charger inserted
+         * 5 -> USB charger inserted
+         * 6 -> PON1 pin toggled (for secondary PMICs)
+         * 7 -> CBLPWR_N pin toggled (for external power supply)
+         * 8 -> KPDPWR_N pin toggled (power key pressed)
+         */
+         if ((Trim(boot_reason) == "3" || reboot_reason == "true")
+                 && Trim(power_off_alarm) == "1") {
+             property_set("ro.alarm_boot", "true");
+         } else {
+             property_set("ro.alarm_boot", "false");
+         }
+    }
+}
+
+void vendor_load_properties()
+{
+    std::string platform;
+    std::string hw_device;
+
+    platform = GetProperty("ro.board.platform", "");
+    if (platform != ANDROID_TARGET)
+        return;
+
+    hw_device = GetProperty("ro.board.variant", "");
+    if (hw_device.compare("d9")) {
+        property_override_dual("ro.product.model", "ro.vendor.product.model", "MI PAD 4");
+    } else if (hw_device.compare("d9p")) {
+        property_override_dual("ro.product.model", "ro.vendor.product.model", "MI PAD 4 PLUS");
+    }
+
+    init_alarm_boot_properties();
+}