first commit

external/packages/bsp/rockchip/start_bt.sh

@@ -0,0 +1,51 @@
+#!/bin/bash
+
+GPIO_CONFIGURED_CHECK_DIRECTORY="/var/run/rtk_bt" 
+GPIO_CONFIGURED_CHECK_FILE="/var/run/rtk_bt/gpio_configured"
+
+function die_on_error {
+	if [ ! $? = 0 ]; then
+		echo $1
+		exit 1
+	fi
+}
+
+# Kill any rtk_hciattach actually running.
+# Do not complain if we didn't kill anything.
+killall -q -SIGTERM rtk_hciattach
+
+# If the GPIO are not yet configured 
+if [ ! -f "$GPIO_CONFIGURED_CHECK_FILE" ];
+then
+	# We'll create the directory first
+	# So that, if the user is not root
+	# he'll get a user permission error
+	mkdir -p "$GPIO_CONFIGURED_CHECK_DIRECTORY" || die_on_error "Could not create$GPIO_CONFIGURED_CHECK_DIRECTORY"
+
+	echo 146 > /sys/class/gpio/export
+	echo 149 > /sys/class/gpio/export
+	echo 151 > /sys/class/gpio/export
+	echo high > /sys/class/gpio/gpio146/direction
+	echo high > /sys/class/gpio/gpio149/direction
+	echo high > /sys/class/gpio/gpio151/direction
+
+	echo 1 > $GPIO_CONFIGURED_CHECK_FILE || die_on_error "Could not write to $GPIO_CONFIGURED_CHECK_FILE !"
+fi
+
+# If you run the rtk_hciattach once
+# you cannot run it again before`
+# resetting the device.
+# Since resetting the device before
+# the first launch generates no issue,
+# we always reset the device.
+
+echo "Resetting the Bluetooth chip"
+echo 0 > /sys/class/gpio/gpio149/value &&
+echo -e "\tBluetooth chip power down..." && 
+sleep 1 &&
+echo 1 > /sys/class/gpio/gpio149/value &&
+echo -e "\tBluetooth chip power up..." &&
+sleep 1
+echo -e "\tResetting done"
+
+/usr/bin/rtk_hciattach -n -s 115200 /dev/ttyS0 rtk_h5 || die_on_error "Could not create hci0 through rtk_hciattach"