tests: Add usage() to run-all.sh

The -h or --help command line arguments can now be used to request usage
information for run-all.sh.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>

diff --git a/tests/hwsim/run-all.sh b/tests/hwsim/run-all.sh
index 20e8e34..9bdb7b1 100755 (executable)
--- a/tests/hwsim/run-all.sh
+++ b/tests/hwsim/run-all.sh
@@ -24,6 +24,14 @@ else
     fi
 fi
 
+usage()
+{
+       echo "$0 [-v | --valgrind | valgrind] [-t | --trace | trace]"
+       echo "\t[-n <num> | --channels <num>] [-B | --build]"
+       echo "\t[-c | --codecov ] [run-tests.py parameters]"
+       exit 1
+}
+
 unset VALGRIND
 unset TRACE
 unset TRACE_ARGS
@@ -60,6 +68,9 @@ while [ "$1" != "" ]; do
                        CODECOV=lcov
                        BUILD_ARGS=-c
                        ;;
+               -h | --help)
+                       usage
+                       ;;
                *)
                        RUN_TEST_ARGS="$RUN_TEST_ARGS$1 "
                        shift