From 82d3ac1789b1056a8f78dfad9914badd1d32d61f Mon Sep 17 00:00:00 2001
From: Kyle Tso <kyletso@google.com>
Date: Wed, 28 Sep 2022 11:00:20 +0800
Subject: [PATCH] Disable USB contaminant detection when the disable flag is
 true

(ported from 6b1106498e1164f46b9a895ed2258a20a0c7a7b5)

Bug: 244658328
Signed-off-by: Kyle Tso <kyletso@google.com>
Change-Id: I9d17748d24f3c402deaddb8a9bca89f8ef606056
---
 conf/init.gs201.usb.rc           | 3 +++
 device.mk                        | 1 +
 disable_contaminant_detection.sh | 7 +++++++
 3 files changed, 11 insertions(+)
 create mode 100644 disable_contaminant_detection.sh

diff --git a/conf/init.gs201.usb.rc b/conf/init.gs201.usb.rc
index 36203f40..4ac57f92 100644
--- a/conf/init.gs201.usb.rc
+++ b/conf/init.gs201.usb.rc
@@ -194,3 +194,6 @@ 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
diff --git a/device.mk b/device.mk
index 57eee8a6..9405815b 100644
--- a/device.mk
+++ b/device.mk
@@ -328,6 +328,7 @@ PRODUCT_COPY_FILES += \
 # Shell scripts
 PRODUCT_COPY_FILES += \
 	device/google/gs201/init.display.sh:$(TARGET_COPY_OUT_VENDOR)/bin/init.display.sh \
+	device/google/gs201/disable_contaminant_detection.sh:$(TARGET_COPY_OUT_VENDOR)/bin/hw/disable_contaminant_detection.sh
 
 include device/google/gs-common/insmod/insmod.mk
 
diff --git a/disable_contaminant_detection.sh b/disable_contaminant_detection.sh
new file mode 100644
index 00000000..b5c22a78
--- /dev/null
+++ b/disable_contaminant_detection.sh
@@ -0,0 +1,7 @@
+#!/vendor/bin/sh
+
+for f in /sys/devices/platform/10d60000.hsi2c/i2c-*/i2c-max77759tcpc; do
+  if [ -d $f ]; then
+    echo 0 > $f/contaminant_detection;
+  fi
+done