1 files changed, 107 insertions, 0 deletions
diff --git a/init/init_msm8996.cpp b/init/init_msm8996.cpp
new file mode 100644
index 0000000..04f02a7
--- /dev/null
+++ b/init/init_msm8996.cpp
@@ -0,0 +1,107 @@
+/*
+   Copyright (C) 2013-2016, The CyanogenMod Project
+   Copyright (C) 2017, The LineageOS Project
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are
+   met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of The Linux Foundation nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+   WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+   ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+   BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+   OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+   IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/sysinfo.h>
+#include <cutils/properties.h>
+#include <android-base/properties.h>
+#include "property_service.h"
+#include "vendor_init.h"
+
+using android::base::GetProperty;
+using android::base::SetProperty;
+
+std::string heapminfree;
+std::string heapmaxfree;
+
+static void init_alarm_boot_properties()
+{
+    int boot_reason;
+    FILE *fp;
+
+    fp = fopen("/proc/sys/kernel/boot_reason", "r");
+    fscanf(fp, "%d", &boot_reason);
+    fclose(fp);
+
+    /*
+     * 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)
+     */
+    SetProperty("ro.alarm_boot", boot_reason == 3 ? "true" : "false");
+}
+
+void check_ram()
+{
+    struct sysinfo sys;
+
+    sysinfo(&sys);
+
+    if (sys.totalram > 3072ull * 1024 * 1024) {
+        // from - phone-xxxhdpi-4096-dalvik-heap.mk
+        heapminfree = "4m";
+        heapmaxfree = "16m";
+    } else {
+        // from - phone-xxhdpi-3072-dalvik-heap.mk
+        heapminfree = "512k";
+        heapmaxfree = "8m";
+    }
+}
+
+void vendor_load_properties() {
+    std::string platform;
+    
+    platform = GetProperty("ro.board.platform", "");
+    if (platform != ANDROID_TARGET)
+        return;
+    
+    check_ram();
+
+    SetProperty("dalvik.vm.heapstartsize", "8m");
+    SetProperty("dalvik.vm.heapgrowthlimit", "256m");
+    SetProperty("dalvik.vm.heapsize", "512m");
+    SetProperty("dalvik.vm.heaptargetutilization", "0.75");
+    SetProperty("dalvik.vm.heapminfree", heapminfree);
+    SetProperty("dalvik.vm.heapmaxfree", heapmaxfree);
+
+    init_alarm_boot_properties();
+}
+