meta-ethanolx: Add service to transfer BMC IP to FPGA
If switch SW2-7 is on, FPGA shows BMC IP address on the 7-segment
displays. For that functionality to work correctly BMC needs to write
its own IP address to the paticular FPGA I2C registers.
Add a service that performs this action on every IP change.
Change-Id: Iead978ef3651448f4c32936402607fbb3267ee18
Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
diff --git a/meta-amd/recipes-amd/amd-fpga/files/ip-to-fpga.service b/meta-amd/recipes-amd/amd-fpga/files/ip-to-fpga.service
new file mode 100644
index 0000000..18fbca8
--- /dev/null
+++ b/meta-amd/recipes-amd/amd-fpga/files/ip-to-fpga.service
@@ -0,0 +1,11 @@
+[Unit]
+Description=Transfer IP address to the FPGA
+BindsTo=sys-subsystem-net-devices-eth0.device
+After=sys-subsystem-net-devices-eth0.device
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/ip-to-fpga.sh
+
+[Install]
+WantedBy=multi-user.target
diff --git a/meta-amd/recipes-amd/amd-fpga/files/ip-to-fpga.sh b/meta-amd/recipes-amd/amd-fpga/files/ip-to-fpga.sh
new file mode 100644
index 0000000..a4d0a98
--- /dev/null
+++ b/meta-amd/recipes-amd/amd-fpga/files/ip-to-fpga.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+
+OLD_IP=""
+
+while true
+do
+ IP=$(ip a | awk '/inet.*global/ {split ($2,A,"/"); print A[1]}')
+
+ if [ "${IP}" != "${OLD_IP}" ]
+ then
+ if [ -n "${IP}" ]
+ then
+ IP_1=$(echo "${IP}" | cut -d "." -f 1)
+ IP_2=$(echo "${IP}" | cut -d "." -f 2)
+ IP_3=$(echo "${IP}" | cut -d "." -f 3)
+ IP_4=$(echo "${IP}" | cut -d "." -f 4)
+ else
+ IP_1=0
+ IP_2=0
+ IP_3=0
+ IP_4=0
+ fi
+
+ echo "Transfer current IP address (${IP_1}.${IP_2}.${IP_3}.${IP_4}) to the FPGA"
+
+ i2cset -y 2 0x50 0 "${IP_1}"
+ i2cset -y 2 0x50 1 "${IP_2}"
+ i2cset -y 2 0x50 2 "${IP_3}"
+ i2cset -y 2 0x50 3 "${IP_4}"
+ OLD_IP=${IP}
+ fi
+ sleep 5
+done