From 71421f8524ab3344c7e98074269989c0b8d526df Mon Sep 17 00:00:00 2001
From: Wootak Jung <wootak.jung@samsung.com>
Date: Mon, 1 Apr 2019 13:17:15 +0900
Subject: [PATCH] Fix bt-dev-start script for rpi3

Add retry logic in case hciattach is failed

Change-Id: I31d08a29193797624f7f5bcc0ec2e89fab4ec6df
---
 scripts/bt-dev-start-rpi3.sh | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/scripts/bt-dev-start-rpi3.sh b/scripts/bt-dev-start-rpi3.sh
index a0e952a..ee8454b 100644
--- a/scripts/bt-dev-start-rpi3.sh
+++ b/scripts/bt-dev-start-rpi3.sh
@@ -45,13 +45,22 @@ else
 	echo "Registering Bluetooth device"
 
 	# Attaching Broadcom device
-	if ($HCI_ATTACH $BT_UART_DEVICE $BT_CHIP_TYPE $UART_SPEED noflow nosleep $BT_MAC); then
-		sleep 0.1
-		$HCI_CONFIG hci0 up
-		$HCI_CONFIG hci0 name $BT_PLATFORM_DEFAULT_HCI_NAME
-		$HCI_CONFIG hci0 sspmode 1
-		echo "HCIATTACH success"
-	else
+	flag=0
+	for ((i=0; i<2; i++))
+	do
+		if ($HCI_ATTACH $BT_UART_DEVICE $BT_CHIP_TYPE $UART_SPEED noflow nosleep $BT_MAC -t 5); then
+			sleep 0.1
+			$HCI_CONFIG hci0 up
+			$HCI_CONFIG hci0 name $BT_PLATFORM_DEFAULT_HCI_NAME
+			$HCI_CONFIG hci0 sspmode 1
+			echo "HCIATTACH success"
+			flag=1
+			break
+		fi
+	done
+
+	if [ $flag -eq 0 ]
+	then
 		echo "HCIATTACH failed"
 	fi
 fi
-- 
2.7.4