From 453a29320a97e24a1e4bd43d9712c32d0973f14e Mon Sep 17 00:00:00 2001
From: Kuen-Han Tsai <khtsai@google.com>
Date: Fri, 2 Feb 2024 13:46:41 +0800
Subject: [PATCH] usb: add disable_contanimant_detection

This patch adds the disable_contaminant_detection script, providing a
command-based method to bypass moisture detection.

Bug: 295127978
Test: disable moisture detection by 'setprop vendor.usb.contaminantdisable true'
Change-Id: I035d656401aedf11a9a5390504bec46b3c4e2634
Signed-off-by: Kuen-Han Tsai <khtsai@google.com>
---
 Android.bp                       | 7 +++++++
 conf/init.zumapro.usb.rc         | 3 +++
 device.mk                        | 4 ++++
 disable_contaminant_detection.sh | 7 +++++++
 4 files changed, 21 insertions(+)
 create mode 100644 disable_contaminant_detection.sh

diff --git a/Android.bp b/Android.bp
index e719cab..7156389 100644
--- a/Android.bp
+++ b/Android.bp
@@ -34,3 +34,10 @@ license {
         "NOTICE",
     ],
 }
+
+sh_binary {
+    name: "disable_contaminant_detection.sh",
+    src: "disable_contaminant_detection.sh",
+    vendor: true,
+    sub_dir: "hw",
+}
diff --git a/conf/init.zumapro.usb.rc b/conf/init.zumapro.usb.rc
index 322e530..8f33d1e 100644
--- a/conf/init.zumapro.usb.rc
+++ b/conf/init.zumapro.usb.rc
@@ -296,6 +296,9 @@ on property:sys.usb.config=charger && property:sys.usb.configfs=1
 on property:ro.bootmode=usbuwb
     setprop persist.vendor.usb.usbradio.config uwb_acm
 
+on property:vendor.usb.contaminantdisable=true
+    exec /vendor/bin/hw/disable_contaminant_detection.sh
+
 on property:persist.vendor.usb.displayport.enabled=1
     write /sys/module/exynos_drm/parameters/dp_enabled 1
     write /sys/class/typec/port0/port0.0/mode1/active "yes"
diff --git a/device.mk b/device.mk
index aea5c16..ca0e409 100644
--- a/device.mk
+++ b/device.mk
@@ -380,6 +380,10 @@ PRODUCT_COPY_FILES += \
 	device/google/$(TARGET_BOARD_PLATFORM)/conf/fstab.persist:$(TARGET_COPY_OUT_VENDOR)/etc/fstab.persist \
 	device/google/$(TARGET_BOARD_PLATFORM)/conf/fstab.modem:$(TARGET_COPY_OUT_VENDOR)/etc/fstab.modem
 
+# Shell scripts
+PRODUCT_PACKAGES += \
+	disable_contaminant_detection.sh
+
 include device/google/gs-common/insmod/insmod.mk
 
 # Insmod config files
diff --git a/disable_contaminant_detection.sh b/disable_contaminant_detection.sh
new file mode 100644
index 0000000..fde6eb4
--- /dev/null
+++ b/disable_contaminant_detection.sh
@@ -0,0 +1,7 @@
+#!/vendor/bin/sh
+
+for f in /sys/devices/platform/108d0000.hsi2c/i2c-*/*-0025; do
+  if [ -d $f ]; then
+    echo 0 > $f/contaminant_detection;
+  fi
+done