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bluez-init: skip BT power GPIO toggling if undefined 

The script toggles the BT power GPIO regardless of the value being
undefined.
Check that the GPIO is defined before trying to toggle it.

Signed-off-by: Hector Palacios <hector.palacios@digi.com>
This commit is contained in:
Hector Palacios 2015-12-28 12:25:40 +01:00
parent 84e152f1ca
commit ee27c907d1
1 changed files with 13 additions and 9 deletions
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6
meta-digi-dey/recipes-connectivity/bluez/bluez5/bluez-init
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@ -70,8 +70,9 @@ bt_init() {
RETRIES="5" RETRIES="5"
while [ "${RETRIES}" -gt "0" ]; do while [ "${RETRIES}" -gt "0" ]; do
hciattach ttyBt ath3k 4000000 1>/dev/null && break hciattach ttyBt ath3k 4000000 1>/dev/null && break
if [ -n "${BT_PWR_GPIO_NR}" ]; then
# #
# If hciattach fails try to recover it by toggling the GPIO # If hciattach fails try to recover it by toggling the BT power GPIO
# #
BT_PWR_L="/sys/class/gpio/gpio${BT_PWR_GPIO_NR}" BT_PWR_L="/sys/class/gpio/gpio${BT_PWR_GPIO_NR}"
[ -d "${BT_PWR_L}" ] || printf "%s" ${BT_PWR_GPIO_NR} > /sys/class/gpio/export [ -d "${BT_PWR_L}" ] || printf "%s" ${BT_PWR_GPIO_NR} > /sys/class/gpio/export
@ -79,6 +80,9 @@ bt_init() {
printf 0 > ${BT_PWR_L}/value && sleep .2 printf 0 > ${BT_PWR_L}/value && sleep .2
printf 1 > ${BT_PWR_L}/value && sleep .2 printf 1 > ${BT_PWR_L}/value && sleep .2
[ -d "${BT_PWR_L}" ] && printf "%s" ${BT_PWR_GPIO_NR} > /sys/class/gpio/unexport [ -d "${BT_PWR_L}" ] && printf "%s" ${BT_PWR_GPIO_NR} > /sys/class/gpio/unexport
else
sleep .5
fi
RETRIES="$((RETRIES - 1))" RETRIES="$((RETRIES - 1))"
done done
if [ "${RETRIES}" -eq "0" ]; then if [ "${RETRIES}" -eq "0" ]; then