init script: start the vm_bms service for 8916

The vm_bms service is the voltage mode battery monitoring
system (BMS).

Start the service as root to set CAP_BLOCK_SUSPEND for
wake lock capability. Later, the service will drop itself
down as a system service but will retain CAP_BLOCK_SUSPEND
capability.

Change-Id: I7ee8eed0b075e2ee82b2b6c7e3a771d97b08a33a

rootdir/etc/init.qcom.rc

@@ -757,3 +757,8 @@ on property:persist.sys.rootagent=1
     start rootagent
 on property:persist.sys.rootagent=0
     stop rootagent
+
+service vm_bms /system/bin/vm_bms
+    user root
+    group root
+    disabled

rootdir/etc/init.qcom.sh

@@ -1,5 +1,5 @@
 #!/system/bin/sh
-# Copyright (c) 2009-2013, The Linux Foundation. All rights reserved.
+# Copyright (c) 2009-2014, The Linux Foundation. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
@@ -83,6 +83,17 @@ start_charger_monitor()
 	fi
 }
 
+start_vm_bms()
+{
+	if [ -e /dev/vm_bms ]; then
+		chown -h root.system /sys/class/power_supply/bms/current_now
+		chown -h root.system /sys/class/power_supply/bms/voltage_ocv
+		chmod -h 0664 /sys/class/power_supply/bms/current_now
+		chmod -h 0664 /sys/class/power_supply/bms/voltage_ocv
+		start vm_bms
+	fi
+}
+
 baseband=`getprop ro.baseband`
 #
 # Suppress default route installation during RA for IPV6; user space will take
@@ -164,4 +175,7 @@ case "$target" in
     "msm8610")
         start_charger_monitor
         ;;
+    "msm8916")
+        start_vm_bms
+        ;;
 esac

rootdir/etc/ueventd.qcom.rc

@@ -1,4 +1,4 @@
-# Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
+# Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
@@ -171,6 +171,10 @@
 /sys/devices/virtual/input/input*                   poll           0660    input    system
 /sys/devices/virtual/input/input*                   pollrate_ms    0660    input    system
 
+# vm_bms
+/dev/vm_bms               0660   system     system
+/dev/battery_data         0660   system     system
+
 # wlan
 /dev/wcnss_wlan           0660   system     system
 #nfc permissions