Add power button test

This tests power button notification and debouncing.

BUG=chrome-os-partner:19236
TEST=Pass all tests
BRANCH=None

Change-Id: Ief8bc24a8725e01734d84e76ab4b6ae0506b811f
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/50524
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>

1 files changed, 104 insertions, 0 deletions

diff --git a/test/power_button.c b/test/power_button.c
new file mode 100644
index 0000000000..7ed2211cc6
--- /dev/null
+++ b/test/power_button.c
@@ -0,0 +1,104 @@
+/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * Test lid switch.
+ */
+
+#include "common.h"
+#include "console.h"
+#include "hooks.h"
+#include "host_command.h"
+#include "power_button.h"
+#include "test_util.h"
+#include "timer.h"
+#include "util.h"
+
+static int mock_power_button = 1;
+static int mock_lid = 1;
+static int pb_hook_count;
+
+int gpio_get_level(enum gpio_signal signal)
+{
+	if (signal == GPIO_POWER_BUTTON_L)
+		return mock_power_button;
+	return 0;
+}
+
+int lid_is_open(void)
+{
+	return mock_lid;
+}
+
+static void pb_change_hook(void)
+{
+	pb_hook_count++;
+}
+DECLARE_HOOK(HOOK_POWER_BUTTON_CHANGE, pb_change_hook, HOOK_PRIO_DEFAULT);
+
+static int test_hook(void)
+{
+	/* Release power button for testing */
+	mock_power_button = 1;
+	power_button_interrupt(GPIO_POWER_BUTTON_L);
+	msleep(100);
+	pb_hook_count = 0;
+	host_clear_events(0xffffffff);
+
+	mock_power_button = 0;
+	power_button_interrupt(GPIO_POWER_BUTTON_L);
+	msleep(50);
+	TEST_ASSERT(pb_hook_count == 1);
+	TEST_ASSERT(power_button_is_pressed());
+	TEST_ASSERT(host_get_events() &
+		    EC_HOST_EVENT_MASK(EC_HOST_EVENT_POWER_BUTTON));
+	host_clear_events(0xffffffff);
+
+	mock_power_button = 1;
+	power_button_interrupt(GPIO_POWER_BUTTON_L);
+	msleep(50);
+	TEST_ASSERT(pb_hook_count == 2);
+	TEST_ASSERT(!power_button_is_pressed());
+	TEST_ASSERT(!(host_get_events() &
+		      EC_HOST_EVENT_MASK(EC_HOST_EVENT_POWER_BUTTON)));
+
+	return EC_SUCCESS;
+}
+
+static int test_debounce(void)
+{
+	/* Release power button for testing */
+	mock_power_button = 1;
+	power_button_interrupt(GPIO_POWER_BUTTON_L);
+	msleep(100);
+	pb_hook_count = 0;
+	host_clear_events(0xffffffff);
+
+	mock_power_button = 0;
+	power_button_interrupt(GPIO_POWER_BUTTON_L);
+	msleep(20);
+	TEST_ASSERT(pb_hook_count == 0);
+	TEST_ASSERT(!power_button_is_pressed());
+	TEST_ASSERT(!(host_get_events() &
+		      EC_HOST_EVENT_MASK(EC_HOST_EVENT_POWER_BUTTON)));
+
+	mock_power_button = 1;
+	power_button_interrupt(GPIO_POWER_BUTTON_L);
+	msleep(50);
+	TEST_ASSERT(pb_hook_count == 0);
+	TEST_ASSERT(!power_button_is_pressed());
+	TEST_ASSERT(!(host_get_events() &
+		      EC_HOST_EVENT_MASK(EC_HOST_EVENT_POWER_BUTTON)));
+
+	return EC_SUCCESS;
+}
+
+void run_test(void)
+{
+	test_reset();
+
+	RUN_TEST(test_hook);
+	RUN_TEST(test_debounce);
+
+	test_print_result();
+}