[bt2] Get MAC address from .bt_nv.bin

Link: https://review.lineageos.org/c/LineageOS/android_device_lenovo_YTX703-common/+/229407/12/configs/init/hw/init.qcom.bt.sh#73
delaya73 · Jan 17, 2019 · 4beef34 · 4beef34
1 parent c1b8345
commit 4beef34
Showing 1 changed file with 19 additions and 2 deletions.
diff --git a/sparse/usr/bin/droid/macaddrbtsetup.sh b/sparse/usr/bin/droid/macaddrbtsetup.sh
@@ -1,13 +1,30 @@
 #!/bin/bash
+
 echo "macaddr: Setting bt MAC address"
 
-mac=$(cat /sys/devices/soc/7570000.uart/tty/ttyHS0/hci0/address)
+# Ensure /persist/bluetooth/.bt_nv.bin exists
+/system/bin/btnvtool -O
+
+# Convert '1.2a.3b.4c.5d.6d' to '6d:5d:4c:3b:2a:01'
+awk_program='                                                \
+/--board-address/ {                                          \
+    split($2, mac, ".");                                     \
+    for (i = 1; i <= 6; i++) {                               \
+        if (length(mac[i]) == 1) {                           \
+            mac[i] = "0" mac[i];                             \
+        }                                                    \
+    }                                                        \
+    printf("%s:%s:%s:%s:%s:%s\n",                            \
+           mac[6], mac[5], mac[4], mac[3], mac[2], mac[1]);  \
+}'
+
+mac=$(/system/bin/btnvtool -p 2>&1 | awk "${awk_program}")
 
 if [ ! -f "/data/misc/bluetooth/bluetooth_bdaddr" ]; then
     echo "File not found!"
     mkdir -p "/data/misc/bluetooth/"
 	chmod 0755 "/data/misc/bluetooth/"
-	echo $mac > "/data/misc/bluetooth/bluetooth_bdaddr"
+	echo "$mac" > "/data/misc/bluetooth/bluetooth_bdaddr"
 fi
 
 if [ -e "/data/misc/bluetooth/bluetooth_bdaddr" ]; then