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/* Copyright 2022 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.
*/
#include <stdint.h>
#include <ztest.h>
#include "common.h"
#include "ec_tasks.h"
#include "emul/emul_isl923x.h"
#include "emul/tcpc/emul_tcpci_partner_drp.h"
#include "tcpm/tcpci.h"
#include "test/drivers/stubs.h"
#include "test/drivers/test_state.h"
#include "test/drivers/utils.h"
#include "usb_pd.h"
#define SNK_PORT USBC_PORT_C0
#define TCPCI_EMUL_LABEL DT_NODELABEL(tcpci_emul)
struct usb_pd_ctrl_msg_test_fixture {
struct tcpci_drp_emul partner_emul;
const struct emul *tcpci_emul;
const struct emul *charger_emul;
};
static void connect_sink_to_port(struct usb_pd_ctrl_msg_test_fixture *fixture)
{
/*
* TODO(b/221439302) Updating the TCPCI emulator registers, updating the
* vbus, as well as alerting should all be a part of the connect
* function.
*/
isl923x_emul_set_adc_vbus(fixture->charger_emul, 0);
zassume_ok(tcpci_emul_set_reg(fixture->tcpci_emul,
TCPC_REG_POWER_STATUS,
TCPC_REG_POWER_STATUS_VBUS_DET),
NULL);
zassume_ok(tcpci_emul_set_reg(fixture->tcpci_emul, TCPC_REG_EXT_STATUS,
TCPC_REG_EXT_STATUS_SAFE0V),
NULL);
zassume_ok(tcpci_drp_emul_connect_to_tcpci(
&fixture->partner_emul.data,
&fixture->partner_emul.src_data,
&fixture->partner_emul.snk_data,
&fixture->partner_emul.common_data,
&fixture->partner_emul.ops, fixture->tcpci_emul),
NULL);
tcpci_tcpc_alert(SNK_PORT);
/* Wait for PD negotiation and current ramp.
* TODO(b/213906889): Check message timing and contents.
*/
k_sleep(K_SECONDS(10));
}
static void
disconnect_sink_from_port(struct usb_pd_ctrl_msg_test_fixture *fixture)
{
zassume_ok(tcpci_emul_disconnect_partner(fixture->tcpci_emul), NULL);
k_sleep(K_SECONDS(1));
}
static void *usb_pd_ctrl_msg_setup(void)
{
static struct usb_pd_ctrl_msg_test_fixture fixture;
/* Get references for the emulators */
fixture.tcpci_emul =
emul_get_binding(DT_LABEL(DT_NODELABEL(tcpci_emul)));
fixture.charger_emul =
emul_get_binding(DT_LABEL(DT_NODELABEL(isl923x_emul)));
tcpci_emul_set_rev(fixture.tcpci_emul, TCPCI_EMUL_REV2_0_VER1_1);
/* Turn TCPCI rev 2 ON */
tcpc_config[SNK_PORT].flags |= TCPC_FLAGS_TCPCI_REV2_0;
return &fixture;
}
static void usb_pd_ctrl_msg_before(void *data)
{
struct usb_pd_ctrl_msg_test_fixture *fixture = data;
set_test_runner_tid();
test_set_chipset_to_g3();
k_sleep(K_SECONDS(1));
/* Set chipset to ON, this will set TCPM to DRP */
test_set_chipset_to_s0();
/* TODO(b/214401892): Check why need to give time TCPM to spin */
k_sleep(K_SECONDS(1));
/* Initialized the sink to request 5V and 3A */
tcpci_drp_emul_init(&fixture->partner_emul);
connect_sink_to_port(fixture);
k_sleep(K_SECONDS(10));
}
static void usb_pd_ctrl_msg_after(void *data)
{
struct usb_pd_ctrl_msg_test_fixture *fixture = data;
disconnect_sink_from_port(fixture);
}
ZTEST_SUITE(usb_pd_ctrl_msg_test, drivers_predicate_post_main,
usb_pd_ctrl_msg_setup, NULL, usb_pd_ctrl_msg_after, NULL);
ZTEST_F(usb_pd_ctrl_msg_test, verify_vconn_swap)
{
struct ec_response_typec_status snk_resp = { 0 };
int rv = 0;
/* TODO(b/228593065): Revert this once ZTEST fix before ordering
* is pulled in
*/
usb_pd_ctrl_msg_before(this);
snk_resp = host_cmd_typec_status(SNK_PORT);
zassert_equal(PD_ROLE_VCONN_SRC, snk_resp.vconn_role,
"SNK Returned vconn_role=%u", snk_resp.vconn_role);
/* Send VCONN_SWAP request */
rv = tcpci_partner_send_control_msg(&this->partner_emul.common_data,
PD_CTRL_VCONN_SWAP, 0);
zassert_ok(rv, "Failed to send VCONN_SWAP request, rv=%d", rv);
k_sleep(K_SECONDS(1));
snk_resp = host_cmd_typec_status(SNK_PORT);
zassert_equal(PD_ROLE_VCONN_OFF, snk_resp.vconn_role,
"SNK Returned vconn_role=%u", snk_resp.vconn_role);
}
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