1 files changed, 72 insertions, 0 deletions
diff --git a/test/extpwr_gpio.c b/test/extpwr_gpio.c
new file mode 100644
index 0000000000..c10dad6627
--- /dev/null
+++ b/test/extpwr_gpio.c
@@ -0,0 +1,72 @@
+/* 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 GPIO extpower module.
+ */
+
+#include "common.h"
+#include "console.h"
+#include "extpower.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "host_command.h"
+#include "test_util.h"
+#include "timer.h"
+#include "util.h"
+
+static int mock_ac;
+static int ac_hook_count;
+
+int gpio_get_level(enum gpio_signal signal)
+{
+	if (signal == GPIO_AC_PRESENT)
+		return mock_ac;
+	return 0;
+}
+
+static void set_ac(int val)
+{
+	if (val == mock_ac)
+		return;
+	mock_ac = val;
+	extpower_interrupt(GPIO_AC_PRESENT);
+	msleep(50);
+}
+
+static void ac_change_hook(void)
+{
+	ac_hook_count++;
+}
+DECLARE_HOOK(HOOK_AC_CHANGE, ac_change_hook, HOOK_PRIO_DEFAULT);
+
+static int test_hook(void)
+{
+	/* Remove AC for testing */
+	set_ac(0);
+	ac_hook_count = 0;
+	host_clear_events(0xffffffff);
+
+	set_ac(1);
+	TEST_ASSERT(ac_hook_count == 1);
+	TEST_ASSERT(extpower_is_present());
+	TEST_ASSERT(host_get_events() &
+		    EC_HOST_EVENT_MASK(EC_HOST_EVENT_AC_CONNECTED));
+
+	set_ac(0);
+	TEST_ASSERT(ac_hook_count == 2);
+	TEST_ASSERT(!extpower_is_present());
+	TEST_ASSERT(host_get_events() &
+		    EC_HOST_EVENT_MASK(EC_HOST_EVENT_AC_DISCONNECTED));
+
+	return EC_SUCCESS;
+}
+
+void run_test(void)
+{
+	test_reset();
+
+	RUN_TEST(test_hook);
+
+	test_print_result();
+}