From 0f30e5e15d81742ce9bac99cbad35ebf758ee1bd Mon Sep 17 00:00:00 2001
From: Grant Yoshida <gyoshida@google.com>
Date: Mon, 19 Aug 2019 18:22:09 -0700
Subject: Move boot-to-vr.sh to device/google/vrservices.

Test: Ran script on a GSI XR MTP.
Change-Id: I332fe62d71864465ce25a7013433e404fff00123
---
 xr/products/experimental_google_xr.mk |  2 +-
 xr/scripts/boot-to-vr.sh              | 74 +++++++++++++++++++++++++++++++++++
 2 files changed, 75 insertions(+), 1 deletion(-)
 create mode 100755 xr/scripts/boot-to-vr.sh

diff --git a/xr/products/experimental_google_xr.mk b/xr/products/experimental_google_xr.mk
index 2f3c1a1..9430331 100644
--- a/xr/products/experimental_google_xr.mk
+++ b/xr/products/experimental_google_xr.mk
@@ -34,9 +34,9 @@ PRODUCT_PACKAGES += NonXrProductPackagesRemover
 
 PRODUCT_COPY_FILES += \
     device/google/vrservices/xr/init/init.xr.rc:$(TARGET_COPY_OUT_SYSTEM)/etc/init/init.xr.rc \
+    device/google/vrservices/xr/scripts/boot-to-vr.sh:$(TARGET_COPY_OUT_SYSTEM)/bin/boot-to-vr.sh \
     frameworks/native/data/etc/android.hardware.vr.high_performance.xml:$(TARGET_COPY_OUT_SYSTEM)/etc/permissions/android.hardware.vr.high_performance.xml \
     vendor/unbundled_google/packages/PrebuiltGoogleVr/configs/daydream_viewer_config:$(TARGET_COPY_OUT_SYSTEM)/etc/hmd_config \
-    vendor/unbundled_google/packages/PrebuiltGoogleVr/scripts/boot-to-vr.sh:$(TARGET_COPY_OUT_SYSTEM)/bin/boot-to-vr.sh \
 
 # XR/VR prebuilt packages
 PRODUCT_PACKAGES += \
diff --git a/xr/scripts/boot-to-vr.sh b/xr/scripts/boot-to-vr.sh
new file mode 100755
index 0000000..853efb9
--- /dev/null
+++ b/xr/scripts/boot-to-vr.sh
@@ -0,0 +1,74 @@
+#
+# This script finds the init.rc file for a certain Pixel XR device and updates
+# the value of ro.boot.vr being set during the init process.
+#
+PROP_RO_HARDWARE="$(getprop ro.hardware)"
+PROP_RO_BOOT_HARDWARE_PLATFORM="$(getprop ro.boot.hardware.platform)"
+PROP_RO_PRODUCT_NAME="$(getprop ro.product.name)"
+
+function print_usage {
+  echo "Update $(get_init_rc_file)"
+  echo "Usage:"
+  echo "  boot-to-vr.sh (true|false))"
+  echo "      Enable or disable whether the system should boot into VR."
+  exit 1
+}
+
+function get_hardware_name() {
+  case $PROP_RO_HARDWARE in
+    walleye) echo walleye ;;
+    taimen) echo taimen ;;
+    blueline) echo $PROP_RO_BOOT_HARDWARE_PLATFORM ;;
+    crosshatch) echo $PROP_RO_BOOT_HARDWARE_PLATFORM ;;
+  esac
+}
+
+function get_init_rc_file() {
+  echo "/vendor/etc/init/hw/init.$(get_hardware_name).rc"
+}
+
+function print_init_rc() {
+  cat $(get_init_rc_file) | grep -A10 -B10 ro.boot.vr
+}
+
+function fail_to_write_file() {
+  echo "Cannot modify $(get_init_rc_file). The following commands may help:
+    adb disable-verity
+    adb reboot
+    adb remount"
+  exit 1
+}
+
+function enable_boot_to_vr() {
+  sed -i "s/setprop ro.boot.vr 0/setprop ro.boot.vr 1/" $(get_init_rc_file)
+  rc=$?
+
+  if [[ $rc != 0 ]]; then
+    fail_to_write_file
+  else
+    print_init_rc
+  fi
+}
+
+function disable_boot_to_vr() {
+  sed -i "s/setprop ro.boot.vr 1/setprop ro.boot.vr 0/" $(get_init_rc_file)
+  rc=$?
+
+  if [[ $rc != 0 ]]; then
+    fail_to_write_file
+  else
+    print_init_rc
+  fi
+}
+
+WHOAMI=$(whoami)
+if ! [ "$WHOAMI" == "root" ]; then
+  echo "*** Root access required. Run 'adb root' first."
+  exit 1
+fi
+
+case "$1" in
+  true) enable_boot_to_vr ;;
+  false) disable_boot_to_vr ;;
+  *) print_usage ;;
+esac
-- 
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