1 files changed, 58 insertions, 0 deletions
diff --git a/zephyr/test/skyrim/src/common/ppc_config.c b/zephyr/test/skyrim/src/common/ppc_config.c
new file mode 100644
index 0000000000..0721e9c313
--- /dev/null
+++ b/zephyr/test/skyrim/src/common/ppc_config.c
@@ -0,0 +1,58 @@
+/* Copyright 2023 The ChromiumOS Authors
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#include <zephyr/drivers/gpio/gpio_emul.h>
+#include <zephyr/fff.h>
+#include <zephyr/ztest.h>
+
+#include <gpio.h>
+#include <usbc_ppc.h>
+
+FAKE_VOID_FUNC(aoz1380_interrupt, int);
+FAKE_VOID_FUNC(nx20p348x_interrupt, int);
+
+static void ppc_config_before(void *fixture)
+{
+	ARG_UNUSED(fixture);
+	RESET_FAKE(aoz1380_interrupt);
+	RESET_FAKE(nx20p348x_interrupt);
+}
+
+void ppc_interrupt(enum gpio_signal signal);
+int board_aoz1380_set_vbus_source_current_limit(int port,
+						enum tcpc_rp_value rp);
+
+ZTEST_SUITE(ppc_config, NULL, NULL, ppc_config_before, NULL, NULL);
+
+ZTEST(ppc_config, board_aoz1380_set_vbus_source_current_limit)
+{
+	int rv;
+	const struct gpio_dt_spec *gpio =
+		GPIO_DT_FROM_NODELABEL(ioex_usb_c0_ilim_3a_en);
+
+	/*
+	 * board_aoz1380_set_vbus_source_current_limit should set
+	 * ioex_usb_c0_ilim_3a_en to 1 for 3A, 0 otherwise.
+	 */
+	rv = board_aoz1380_set_vbus_source_current_limit(0, TYPEC_RP_3A0);
+	zassert_equal(rv, EC_SUCCESS);
+	zassert_equal(gpio_emul_output_get(gpio->port, gpio->pin), 1);
+
+	rv = board_aoz1380_set_vbus_source_current_limit(0, TYPEC_RP_1A5);
+	zassert_equal(rv, EC_SUCCESS);
+	zassert_equal(gpio_emul_output_get(gpio->port, gpio->pin), 0);
+}
+
+ZTEST(ppc_config, ppc_interrupt)
+{
+	ppc_interrupt(GPIO_USB_C0_PPC_INT_ODL);
+	zassert_equal(aoz1380_interrupt_fake.call_count, 1);
+	/* port */
+	zassert_equal(aoz1380_interrupt_fake.arg0_val, 0);
+
+	ppc_interrupt(GPIO_USB_C1_PPC_INT_ODL);
+	zassert_equal(nx20p348x_interrupt_fake.call_count, 1);
+	/* port */
+	zassert_equal(nx20p348x_interrupt_fake.arg0_val, 1);
+}