whyred: add init library

2025-10-03 09:49:16 +02:00 · 2018-06-06 21:00:07 +05:30 · 2018-06-06 21:00:07 +05:30 · d2b64dd578
commit d2b64dd578
parent 0d9f5ad19c
3 changed files with 139 additions and 0 deletions
--- a/init/init_sagit.cpp
+++ b/init/init_sagit.cpp
@ -0,0 +1,107 @@
+/*
+   Copyright (c) 2015, The Linux Foundation. All rights reserved.
+   Copyright (C) 2016 The CyanogenMod 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 "vendor_init.h"
+#include "property_service.h"
+#include "log.h"
+#include "util.h"
+
+char const *heapminfree;
+char const *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)
+     */
+     if (boot_reason == 3) {
+        property_set("ro.alarm_boot", "true");
+     } else {
+        property_set("ro.alarm_boot", "false");
+     }
+}
+
+void check_device()
+{
+    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 = property_get("ro.board.platform");
+    if (platform != ANDROID_TARGET)
+        return;
+
+    check_device();
+
+    property_set("dalvik.vm.heapstartsize", "8m");
+    property_set("dalvik.vm.heapgrowthlimit", "256m");
+    property_set("dalvik.vm.heapsize", "512m");
+    property_set("dalvik.vm.heaptargetutilization", "0.75");
+    property_set("dalvik.vm.heapminfree", heapminfree);
+    property_set("dalvik.vm.heapmaxfree", heapmaxfree);
+
+    init_alarm_boot_properties();
+}