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#!/bin/sh
#This test is writen taking the DRA7xx-EVM board as an example
#these tests will be skipped if 2 interfaces are not detected.
#Theorical values of bitrate is from 1Kbit/s to 1Mbit/s
#Real values to provide transmission are between 10797 bit/s and 1909090git bit/s
#Real values that doesn't provide transmission but belong to the domain are between 781 bit/s and 5209999 bit/s
if [ ! -e /sys/class/net/can1 ];then
lava-test-case can0_bitrate_range_start --result skip
lava-test-case can1_bitrate_range_start --result skip
lava-test-case can1_xfer_config_range_start --result skip
lava-test-case can1_xfer_tx_range_start --result skip
lava-test-case can1_xfer_tx_range_end --result skip
lava-test-case can0_bitrate_range_end --result skip
exit 0
fi
#This is the first part of the test, that tests if the bitrate inserted belongs to the domain and if
#this first bitrate afford frames transmission or not
ip link set can0 down
if [ $? -eq 0 ];then
lava-test-case stop_can0 --result pass
else
lava-test-case stop_can0 --result fail
fi
sleep 2
ip link set can1 down
if [ $? -eq 0 ];then
lava-test-case stop_can1 --result pass
else
lava-test-case stop_can1 --result fail
fi
sleep 2
# b refers to bitrate
found_bitrate=0
for b in `seq 778 790`;do
ip link set can0 type can bitrate $b
x=$?
if [ $x -eq 0 ];then
lava-test-case can0_bitrate_range_start --result pass --measurement $b --units bit/s
echo "$b is the first bitrate in the domain"
found_bitrate=1
ip link set can1 type can bitrate $b
if [ $? -eq 0 ];then
lava-test-case can1_bitrate_range_start --result pass --measurement $b --units bit/s
else
lava-test-case can1_bitrate_range_start --result fail --measurement $b --units bit/s
fi
sleep 2
ip link set can0 up
if [ $? -eq 0 ];then
lava-test-case start_can0 --result pass
else
lava-test-case start_can0 --result fail
fi
sleep 2
ip link set can1 up
if [ $? -eq 0 ];then
lava-test-case start_can1 --result pass
else
lava-test-case start_can1 --result fail
fi
sleep 2
file_can=$(mktemp)
cangen can0 &
candump can1 > $file_can &
sleep 3
if [ -s $file_can ];then
lava-test-case can1_xfer_config_range_start --result fail --measurement $b --units bit/s
else
lava-test-case can1_xfer_config_range_start --result pass --measurement $b --units bit/s
sleep 2
echo "This bitrate $b belongs to the domain but doesn't provide frames transmission"
fi
rm $file_can
break
fi
done
if [ $found_bitrate -eq 0 ];then
lava-test-case can0_bitrate_range_start --result fail --measurement $b --units bit/s
sleep 2
echo "There is no supportable bitrate in this interval"
fi
ip link set can0 down
ip link set can1 down
sleep 2
#This is the second part of the test, it tests the first bitrate to provide frames transmission
ip link set can0 down
ip link set can1 down
found_bitrate_for_transmisson=0
for b in `seq 10790 10800`;do
ip link set can0 type can bitrate $b
ip link set can1 type can bitrate $b
ip link set can0 up
ip link set can1 up
sleep 3
file_can=$(mktemp)
cangen can0 &
candump can1 > $file_can &
sleep 4
if [ -s $file_can ];then
found_bitrate_for_transmisson=1
lava-test-case can1_xfer_tx_range_start --result pass --measurement $b --units bit/s
sleep 2
echo "$b is the first supportable bitrate to provide transmission"
rm $file_can
break
fi
ip link set can0 down
ip link set can1 down
rm $file_can
done
if [ $found_bitrate_for_transmisson -eq 0 ];then
lava-test-case can1_xfer_tx_range_start --result fail --measurement $b --units bit/s
sleep 2
echo "There is no bitrate in this interval to provide frames transmission"
fi
#This is the third part of the test, it tests the last bitrate to provide frames transmission
ip link set can0 down
ip link set can1 down
bitrate_no_transmission=0
for b in `seq 1909088 1909092`;do
ip link set can0 type can bitrate $b
ip link set can1 type can bitrate $b
ip link set can0 up
ip link set can1 up
sleep 2
file_can=$(mktemp)
cangen can0 &
candump can1 > $file_can &
sleep 3
size=$(stat -c %s $file_can)
if [ $size -eq 0 ];then
bitrate_no_transmission=1
lava-test-case can1_xfer_tx_range_end --result pass --measurement $(($b-1)) --units bit/s
sleep 2
echo "This bitrate $b doesn't provide frames transmission"
echo "The last bitrate to provide frames transmission is $(($b-1))"
break
fi
ip link set can0 down
ip link set can1 down
rm $file_can
done
if [ $bitrate_no_transmission -eq 0 ];then
lava-test-case can1_xfer_tx_range_end --result fail --measurement $b --units bit/s
echo "All bitrates in this interval provide frames transmission, the last bitrate not found in this range"
ip link set can0 down
ip link set can1 down
fi
#This is the last part of the test, it tests the last bitrate that belongs to the domain
sleep 3
ip link set can0 down
ip link set can1 down
out_of_domain=0
for b in `seq 5290999 5291000`;do
ip link set can0 type can bitrate $b
x=$?
sleep 2
if [ $x -ne 0 ];then
out_of_domain=1
lava-test-case can0_bitrate_range_end --result pass --measurement $(($b-1)) --units bit/s
echo "$b is the first bitrate to be out of the domain"
echo "The last bitrate to belong to the domain is $(($b-1))"
break
fi
done
if [ $out_of_domain -eq 0 ];then
lava-test-case can0_bitrate_range_end --result fail --measurement $b --units bit/s
echo "All bitrates in this interval belong to the domain"
canconfig can0 stop
canconfig can1 stop
fi
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