| Current File : //lib/modules/6.8.0-60-generic/build/tools/testing/selftests/firmware/fw_upload.sh |
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# This validates the user-initiated fw upload mechanism of the firmware
# loader. It verifies that one or more firmware devices can be created
# for a device driver. It also verifies the data transfer, the
# cancellation support, and the error flows.
set -e
TEST_REQS_FW_UPLOAD="yes"
TEST_DIR=$(dirname $0)
progress_states="preparing transferring programming"
errors="hw-error
timeout
device-busy
invalid-file-size
read-write-error
flash-wearout"
error_abort="user-abort"
fwname1=fw1
fwname2=fw2
fwname3=fw3
source $TEST_DIR/fw_lib.sh
check_mods
check_setup
verify_reqs
trap "upload_finish" EXIT
upload_finish() {
local fwdevs="$fwname1 $fwname2 $fwname3"
for name in $fwdevs; do
if [ -e "$DIR/$name" ]; then
echo -n "$name" > "$DIR"/upload_unregister
fi
done
}
upload_fw() {
local name="$1"
local file="$2"
echo 1 > "$DIR"/"$name"/loading
cat "$file" > "$DIR"/"$name"/data
echo 0 > "$DIR"/"$name"/loading
}
verify_fw() {
local name="$1"
local file="$2"
echo -n "$name" > "$DIR"/config_upload_name
if ! cmp "$file" "$DIR"/upload_read > /dev/null 2>&1; then
echo "$0: firmware compare for $name did not match" >&2
exit 1
fi
echo "$0: firmware upload for $name works" >&2
return 0
}
inject_error() {
local name="$1"
local status="$2"
local error="$3"
echo 1 > "$DIR"/"$name"/loading
echo -n "inject":"$status":"$error" > "$DIR"/"$name"/data
echo 0 > "$DIR"/"$name"/loading
}
await_status() {
local name="$1"
local expected="$2"
local status
local i
let i=0
while [ $i -lt 50 ]; do
status=$(cat "$DIR"/"$name"/status)
if [ "$status" = "$expected" ]; then
return 0;
fi
sleep 1e-03
let i=$i+1
done
echo "$0: Invalid status: Expected $expected, Actual $status" >&2
return 1;
}
await_idle() {
local name="$1"
await_status "$name" "idle"
return $?
}
expect_error() {
local name="$1"
local expected="$2"
local error=$(cat "$DIR"/"$name"/error)
if [ "$error" != "$expected" ]; then
echo "Invalid error: Expected $expected, Actual $error" >&2
return 1
fi
return 0
}
random_firmware() {
local bs="$1"
local count="$2"
local file=$(mktemp -p /tmp uploadfwXXX.bin)
dd if=/dev/urandom of="$file" bs="$bs" count="$count" > /dev/null 2>&1
echo "$file"
}
test_upload_cancel() {
local name="$1"
local status
for status in $progress_states; do
inject_error $name $status $error_abort
if ! await_status $name $status; then
exit 1
fi
echo 1 > "$DIR"/"$name"/cancel
if ! await_idle $name; then
exit 1
fi
if ! expect_error $name "$status":"$error_abort"; then
exit 1
fi
done
echo "$0: firmware upload cancellation works"
return 0
}
test_error_handling() {
local name=$1
local status
local error
for status in $progress_states; do
for error in $errors; do
inject_error $name $status $error
if ! await_idle $name; then
exit 1
fi
if ! expect_error $name "$status":"$error"; then
exit 1
fi
done
done
echo "$0: firmware upload error handling works"
}
test_fw_too_big() {
local name=$1
local fw_too_big=`random_firmware 512 5`
local expected="preparing:invalid-file-size"
upload_fw $name $fw_too_big
rm -f $fw_too_big
if ! await_idle $name; then
exit 1
fi
if ! expect_error $name $expected; then
exit 1
fi
echo "$0: oversized firmware error handling works"
}
echo -n "$fwname1" > "$DIR"/upload_register
echo -n "$fwname2" > "$DIR"/upload_register
echo -n "$fwname3" > "$DIR"/upload_register
test_upload_cancel $fwname1
test_error_handling $fwname1
test_fw_too_big $fwname1
fw_file1=`random_firmware 512 4`
fw_file2=`random_firmware 512 3`
fw_file3=`random_firmware 512 2`
upload_fw $fwname1 $fw_file1
upload_fw $fwname2 $fw_file2
upload_fw $fwname3 $fw_file3
verify_fw ${fwname1} ${fw_file1}
verify_fw ${fwname2} ${fw_file2}
verify_fw ${fwname3} ${fw_file3}
echo -n "$fwname1" > "$DIR"/upload_unregister
echo -n "$fwname2" > "$DIR"/upload_unregister
echo -n "$fwname3" > "$DIR"/upload_unregister
exit 0