ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/target/linux/ath79/generic/base-files/lib/functions/k2t.sh b/target/linux/ath79/generic/base-files/lib/functions/k2t.sh
new file mode 100644
index 0000000..f16734f
--- /dev/null
+++ b/target/linux/ath79/generic/base-files/lib/functions/k2t.sh
@@ -0,0 +1,54 @@
+#
+# Copyright (C) 2018 Weijie Gao <hackpascal@gmail.com>
+#
+# Helper function to extract mac addresses from mtd part for Phicomm K2T
+#
+
+. /lib/functions.sh
+. /lib/functions/system.sh
+. /usr/share/libubox/jshn.sh
+
+k2t_config_load() {
+ local mtd_blk=$(find_mtd_part config)
+
+ if [ -z "$mtd_blk" ]; then
+ echo "k2t_config_load: no mtd part named config" >&2
+ exit 1
+ fi
+
+ local json_size=$(dd if=$mtd_blk bs=1 count=8 2>/dev/null)
+
+ json_size="0x$json_size"
+ json_size=$((json_size))
+
+ if [ "$?" -ne 0 ]; then
+ echo "k2t_config_load: invalid json data size" >&2
+ exit 2
+ fi
+
+ if [ "$json_size" -eq 0 ]; then
+ echo "k2t_config_load: empty json data" >&2
+ exit 3
+ fi
+
+ local json_data=$(dd if=$mtd_blk bs=1 skip=8 count=$json_size 2>/dev/null)
+
+ json_load "$json_data"
+}
+
+k2t_get_mac() {
+ local old_ns
+
+ json_set_namespace "k2t" old_ns
+
+ if k2t_config_load; then
+ json_select "this_dev_info"
+ json_get_var val "$1"
+ json_select ..
+ fi
+
+ json_set_namespace old_ns
+
+ echo $val
+}
+