zephyr: add defer canceling

For the description of hook_call_deferred() in hooks.h, pass delay time
-1 to hook_call_deferred() should cancel the deferred call. Add
canceling to sync the original behavior in shim hook.

BRANCH=none
BUG=none
TEST=zmake testall
TEST=check defer is canceled by ` -1 ` parameter.

Signed-off-by: Wealian Liao <whliao@nuvoton.corp-partner.google.com>
Change-Id: I3e9743d5c19efbc8619fd5cbd61ff247db700af9
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2738912
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>

1 files changed, 23 insertions, 1 deletions

diff --git a/zephyr/test/hooks/hooks.c b/zephyr/test/hooks/hooks.c
index 6b482b30cf..9f504d4ff4 100644
--- a/zephyr/test/hooks/hooks.c
+++ b/zephyr/test/hooks/hooks.c
@@ -120,6 +120,27 @@ static void test_deferred_func_push_out(void)
 		"The deferred function was not called, but should have been");
 }
 
+static bool deferred_func_3_called;
+
+static void deferred_func_3(void)
+{
+	deferred_func_3_called = true;
+}
+DECLARE_DEFERRED(deferred_func_3);
+
+static void test_deferred_func_cancel(void)
+{
+	zassert_false(
+		deferred_func_3_called,
+		"The deferred function was called, but should not have been");
+	hook_call_deferred(&deferred_func_3_data, DEFERRED_DELAY_US);
+	hook_call_deferred(&deferred_func_3_data, -1);
+	k_usleep(DEFERRED_DELAY_US * 2);
+	zassert_false(
+		deferred_func_3_called,
+		"The deferred function was called, but should not have been");
+}
+
 void test_main(void)
 {
 	ztest_test_suite(
@@ -128,7 +149,8 @@ void test_main(void)
 		ztest_unit_test(test_hook_list_single),
 		ztest_unit_test(test_hook_list_empty),
 		ztest_unit_test(test_deferred_func),
-		ztest_unit_test(test_deferred_func_push_out));
+		ztest_unit_test(test_deferred_func_push_out),
+		ztest_unit_test(test_deferred_func_cancel));
 
 	ztest_run_test_suite(hooks_tests);
 }