1 files changed, 129 insertions, 0 deletions
diff --git a/zephyr/test/drivers/host_cmd/src/pd_control.c b/zephyr/test/drivers/host_cmd/src/pd_control.c
new file mode 100644
index 0000000000..e8de27f6ce
--- /dev/null
+++ b/zephyr/test/drivers/host_cmd/src/pd_control.c
@@ -0,0 +1,129 @@
+/* Copyright 2022 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/fff.h>
+#include <zephyr/shell/shell.h>
+#include <zephyr/ztest.h>
+
+#include "console.h"
+#include "ec_commands.h"
+#include "test/drivers/stubs.h"
+#include "test/drivers/test_state.h"
+#include "test/drivers/utils.h"
+
+#define TEST_PORT USBC_PORT_C0
+#define BAD_PORT 82
+
+ZTEST_USER(host_cmd_pd_control, test_bad_index)
+{
+	struct ec_params_pd_control params = { .chip = BAD_PORT,
+					       .subcmd = PD_RESET };
+	struct host_cmd_handler_args args =
+		BUILD_HOST_COMMAND_PARAMS(EC_CMD_PD_CONTROL, 0, params);
+
+	zassume_true(board_get_usb_pd_port_count() < BAD_PORT,
+		     "Intended bad port exists");
+	zassert_equal(host_command_process(&args), EC_RES_INVALID_PARAM,
+		      "Failed to fail pd_control for port %d", params.chip);
+}
+
+ZTEST_USER(host_cmd_pd_control, test_unimplemented_command)
+{
+	struct ec_params_pd_control params = { .chip = TEST_PORT,
+					       .subcmd = PD_CHIP_ON };
+	struct host_cmd_handler_args args =
+		BUILD_HOST_COMMAND_PARAMS(EC_CMD_PD_CONTROL, 0, params);
+
+	zassert_equal(host_command_process(&args), EC_RES_INVALID_COMMAND,
+		      "Failed to fail pd_control for port %d", params.chip);
+}
+
+ZTEST_USER(host_cmd_pd_control, test_pd_reset_resume)
+{
+	/*
+	 * Note: this would ideally be a host command interface check, but
+	 * the only HC return which would cover this is a state string, which
+	 * could be brittle.
+	 */
+	zassume_true(pd_is_port_enabled(TEST_PORT), "Port not up at beginning");
+
+	host_cmd_pd_control(TEST_PORT, PD_RESET);
+
+	zassert_equal(1, board_reset_pd_mcu_fake.call_count,
+		      "Failed to see board reset");
+
+	/* Give some PD task processing time */
+	k_sleep(K_SECONDS(1));
+
+	zassert_false(pd_is_port_enabled(TEST_PORT), "Port failed to suspend");
+
+	host_cmd_pd_control(TEST_PORT, PD_RESUME);
+
+	/* Give some PD task processing time */
+	k_sleep(K_SECONDS(1));
+
+	zassert_true(pd_is_port_enabled(TEST_PORT), "Port failed to resume");
+
+	RESET_FAKE(board_reset_pd_mcu);
+}
+
+ZTEST_USER(host_cmd_pd_control, test_suspend_resume)
+{
+	/*
+	 * Note: this would ideally be a host command interface check, but
+	 * the only HC return which would cover this is a state string, which
+	 * could be brittle.
+	 */
+	zassume_true(pd_is_port_enabled(TEST_PORT), "Port not up at beginning");
+
+	host_cmd_pd_control(TEST_PORT, PD_SUSPEND);
+
+	/* Give some PD task processing time */
+	k_sleep(K_SECONDS(1));
+
+	zassert_false(pd_is_port_enabled(TEST_PORT), "Port failed to suspend");
+
+	host_cmd_pd_control(TEST_PORT, PD_RESUME);
+
+	/* Give some PD task processing time */
+	k_sleep(K_SECONDS(1));
+
+	zassert_true(pd_is_port_enabled(TEST_PORT), "Port failed to resume");
+}
+
+ZTEST_USER(host_cmd_pd_control, test_control_disable)
+{
+	struct ec_params_pd_control params = { .chip = TEST_PORT,
+					       .subcmd = PD_RESET };
+	struct host_cmd_handler_args args =
+		BUILD_HOST_COMMAND_PARAMS(EC_CMD_PD_CONTROL, 0, params);
+
+	host_cmd_pd_control(TEST_PORT, PD_CONTROL_DISABLE);
+
+	zassert_equal(host_command_process(&args), EC_RES_ACCESS_DENIED,
+		      "Access was not denied for port %d", params.chip);
+
+	/*
+	 * Disable lasts as long as the EC is booted.  Use a test hook to
+	 * restore our state to a normal one
+	 */
+	pd_control_port_enable(TEST_PORT);
+}
+
+static void host_cmd_pd_control_begin(void *data)
+{
+	ARG_UNUSED(data);
+
+	/* Assume we have at least one USB-C port */
+	zassume_true(board_get_usb_pd_port_count() > 0,
+		     "Insufficient TCPCs found");
+
+	/* Set the system into S0, since the AP would drive these commands */
+	test_set_chipset_to_s0();
+	k_sleep(K_SECONDS(1));
+}
+
+ZTEST_SUITE(host_cmd_pd_control, drivers_predicate_post_main, NULL,
+	    host_cmd_pd_control_begin, NULL, NULL);