1 files changed, 39 insertions, 0 deletions
diff --git a/test/fpsensor_hw.c b/test/fpsensor_hw.c
new file mode 100644
index 0000000000..ff5b78ace2
--- /dev/null
+++ b/test/fpsensor_hw.c
@@ -0,0 +1,39 @@
+/* Copyright 2021 The ChromiumOS Authors
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "common.h"
+#include "test_util.h"
+#include "fpc_private.h"
+#include "board.h"
+
+#ifdef SECTION_IS_RW
+#include "fpc/fpc_sensor.h"
+static const uint32_t fp_sensor_hwid = FP_SENSOR_HWID;
+#else
+static const uint32_t fp_sensor_hwid = UINT32_MAX;
+#endif
+
+/* Hardware-dependent smoke test that makes a SPI transaction with the
+ * fingerprint sensor.
+ */
+test_static int test_fp_check_hwid(void)
+{
+	uint16_t id = 0;
+
+	if (IS_ENABLED(SECTION_IS_RW)) {
+		TEST_EQ(fpc_get_hwid(&id), EC_SUCCESS, "%d");
+		/* The lower 4-bits of the sensor hardware id are a
+		 * manufacturing ID that is ok to vary.
+		 */
+		TEST_EQ(fp_sensor_hwid, id >> 4, "%d");
+	};
+	return EC_SUCCESS;
+}
+
+void run_test(int argc, const char **argv)
+{
+	RUN_TEST(test_fp_check_hwid);
+	test_print_result();
+}