From 50a3ec5802f221e03beb9757eb005c9d8a958c23 Mon Sep 17 00:00:00 2001
From: Elias Gabrielsson <elias@gabson.se>
Date: Sun, 14 Jan 2018 21:42:36 +0100
Subject: [PATCH] Added PINE64 support for system binding and gpio closes #310

Signed-off-by: Elias Gabrielsson <elias@benefactory.se> (github: EliasGabrielsson)
---
 functions/system.sh                  | 16 ++++++++++++++++
 includes/PINE64-80-gpio-noroot.rules |  7 +++++++
 openhabian-setup.sh                  |  1 +
 3 files changed, 24 insertions(+)
 create mode 100644 includes/PINE64-80-gpio-noroot.rules

diff --git a/functions/system.sh b/functions/system.sh
index 79cf59205..b8fcb5d5a 100644
--- a/functions/system.sh
+++ b/functions/system.sh
@@ -162,6 +162,9 @@ permissions_corrections() {
     echo "FAILED (please execute after openHAB was installed)"
     exit 1
   fi
+
+  if is_pine64; then pine64_gpio_permissions;fi
+
   cond_redirect adduser openhab dialout
   cond_redirect adduser openhab tty
   cond_redirect adduser openhab gpio
@@ -217,6 +220,19 @@ pine64_platform_scripts() {
   fi
 }
 
+pine64_gpio_permissions() {
+  cond_redirect groupadd gpio
+  cond_redirect cp $BASEDIR/includes/PINE64-80-gpio-noroot.rules /etc/udev/rules.d/80-gpio-noroot.rules
+  cond_redirect sed -i -e '$i \chown -R root:gpio /sys/class/gpio \n' /etc/rc.local
+  cond_redirect sed -i -e '$i \chmod -R ug+rw /sys/class/gpio \n' /etc/rc.local
+} 
+
+pine64_fix_system_binding() { # This will maybe be fixed upstreams some day. Keep an eye open.
+  cond_redirect apt-get install -y udev:armhf
+  cond_redirect ln -s /lib/arm-linux-gnueabihf/ /lib/linux-arm
+  cond_redirect ln -s /lib/linux-arm/libudev.so.1 /lib/linux-arm/libudev.so
+}
+
 pine64_fixed_mac() {
   echo -n "$(timestamp) [openHABian] Assigning fixed MAC address to eth0 (longsleep)... "
   if ! grep -q "mac_addr=" /boot/uEnv.txt; then
diff --git a/includes/PINE64-80-gpio-noroot.rules b/includes/PINE64-80-gpio-noroot.rules
new file mode 100644
index 000000000..ed7815bbc
--- /dev/null
+++ b/includes/PINE64-80-gpio-noroot.rules
@@ -0,0 +1,7 @@
+# /etc/udev/rules.d/80-gpio-noroot.rules
+# Corrects sys GPIO permissions on the Pine64 so non-root users in the gpio group can manipulate bits
+#
+# Change group to gpio
+SUBSYSTEM=="gpio", PROGRAM="/bin/sh -c '/bin/chown -R root:gpio /sys/devices/soc.0/*pinctrl/gpio'"
+# Change user permissions to ensure user and group have read/write permissions
+SUBSYSTEM=="gpio", PROGRAM="/bin/sh -c '/bin/chmod -R ug+rw /sys/devices/soc.0/*pinctrl/gpio'"
\ No newline at end of file
diff --git a/openhabian-setup.sh b/openhabian-setup.sh
index 606dafe31..ea06fb2f5 100755
--- a/openhabian-setup.sh
+++ b/openhabian-setup.sh
@@ -60,6 +60,7 @@ if [[ -n "$UNATTENDED" ]]; then
   if is_pi; then memory_split; enable_rpi_audio; fi
   if is_pine64; then pine64_platform_scripts; fi
   if is_pine64; then pine64_fixed_mac; fi
+  if is_pine64; then pine64_fix_system_binding; fi
   basic_packages
   needed_packages
   bashrc_copy