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/* 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 "battery_smart.h"
#include "emul/emul_isl923x.h"
#include "emul/emul_smart_battery.h"
#include "emul/tcpc/emul_tcpci_partner_faulty_ext.h"
#include "emul/tcpc/emul_tcpci_partner_snk.h"
#include "tcpm/tcpci.h"
#include "test/drivers/stubs.h"
#include "test/drivers/test_state.h"
#include "test/drivers/utils.h"
#include "timer.h"
#include "usb_pd.h"
#include "usb_tc_sm.h"
#include <stdint.h>
#include <zephyr/sys/byteorder.h>
#include <zephyr/ztest.h>
/* USB-C port used to connect port partner in this testsuite */
#define TEST_PORT 0
BUILD_ASSERT(TEST_PORT == USBC_PORT_C0);
struct usb_malfunction_sink_fixture {
struct tcpci_partner_data sink;
struct tcpci_faulty_ext_data faulty_snk_ext;
struct tcpci_snk_emul_data snk_ext;
const struct emul *tcpci_emul;
const struct emul *charger_emul;
struct tcpci_faulty_ext_action actions[2];
enum usbc_port port;
};
static void *usb_malfunction_sink_setup(void)
{
static struct usb_malfunction_sink_fixture test_fixture;
test_fixture.port = TEST_PORT;
/* Get references for the emulators */
test_fixture.tcpci_emul = EMUL_GET_USBC_BINDING(TEST_PORT, tcpc);
test_fixture.charger_emul = EMUL_GET_USBC_BINDING(TEST_PORT, chg);
/* Initialized the sink to request 5V and 3A */
tcpci_partner_init(&test_fixture.sink, PD_REV20);
test_fixture.sink.extensions = tcpci_faulty_ext_init(
&test_fixture.faulty_snk_ext, &test_fixture.sink,
tcpci_snk_emul_init(&test_fixture.snk_ext, &test_fixture.sink,
NULL));
test_fixture.snk_ext.pdo[1] =
PDO_FIXED(5000, 3000, PDO_FIXED_UNCONSTRAINED);
return &test_fixture;
}
static void usb_malfunction_sink_before(void *data)
{
/* 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));
}
static void usb_malfunction_sink_after(void *data)
{
struct usb_malfunction_sink_fixture *fixture = data;
tcpci_faulty_ext_clear_actions_list(&fixture->faulty_snk_ext);
disconnect_sink_from_port(fixture->tcpci_emul);
tcpci_partner_common_clear_logged_msgs(&fixture->sink);
}
ZTEST_SUITE(usb_malfunction_sink, drivers_predicate_post_main,
usb_malfunction_sink_setup, usb_malfunction_sink_before,
usb_malfunction_sink_after, NULL);
ZTEST_F(usb_malfunction_sink, test_fail_source_cap_and_pd_disable)
{
struct ec_response_typec_status typec_status;
/*
* Fail on SourceCapabilities message to make TCPM change PD port state
* to disabled
*/
fixture->actions[0].action_mask = TCPCI_FAULTY_EXT_FAIL_SRC_CAP;
fixture->actions[0].count = TCPCI_FAULTY_EXT_INFINITE_ACTION;
tcpci_faulty_ext_append_action(&fixture->faulty_snk_ext,
&fixture->actions[0]);
connect_sink_to_port(&fixture->sink, fixture->tcpci_emul,
fixture->charger_emul);
typec_status = host_cmd_typec_status(0);
/* Device is connected, but PD wasn't able to establish contract */
zassert_true(typec_status.pd_enabled);
zassert_true(typec_status.dev_connected);
zassert_false(typec_status.sop_connected);
}
ZTEST_F(usb_malfunction_sink, test_fail_source_cap_and_pd_connect)
{
struct ec_response_usb_pd_power_info info;
struct ec_response_typec_status typec_status;
/*
* Fail only few times on SourceCapabilities message to prevent entering
* PE_SRC_Disabled state by TCPM
*/
fixture->actions[0].action_mask = TCPCI_FAULTY_EXT_FAIL_SRC_CAP;
fixture->actions[0].count = 3;
tcpci_faulty_ext_append_action(&fixture->faulty_snk_ext,
&fixture->actions[0]);
connect_sink_to_port(&fixture->sink, fixture->tcpci_emul,
fixture->charger_emul);
typec_status = host_cmd_typec_status(0);
zassert_true(typec_status.pd_enabled);
zassert_true(typec_status.dev_connected);
zassert_true(typec_status.sop_connected);
info = host_cmd_power_info(0);
zassert_equal(info.role, USB_PD_PORT_POWER_SOURCE,
"Expected role to be %d, but got %d",
USB_PD_PORT_POWER_SOURCE, info.role);
zassert_equal(info.type, USB_CHG_TYPE_NONE,
"Expected type to be %d, but got %d", USB_CHG_TYPE_NONE,
info.type);
zassert_equal(info.meas.voltage_max, 0,
"Expected charge voltage max of 0mV, but got %dmV",
info.meas.voltage_max);
zassert_within(
info.meas.voltage_now, 5000, 500,
"Charging voltage expected to be near 5000mV, but was %dmV",
info.meas.voltage_now);
zassert_equal(info.meas.current_max, 1500,
"Current max expected to be 1500mV, but was %dmV",
info.meas.current_max);
zassert_equal(info.meas.current_lim, 0,
"VBUS max is set to 0mA, but PD is reporting %dmA",
info.meas.current_lim);
zassert_equal(info.max_power, 0,
"Charging expected to be at %duW, but PD max is %duW", 0,
info.max_power);
}
ZTEST_F(usb_malfunction_sink, test_ignore_source_cap)
{
struct tcpci_partner_log_msg *msg;
uint16_t header;
bool expect_hard_reset = false;
int msg_cnt = 0;
fixture->actions[0].action_mask = TCPCI_FAULTY_EXT_IGNORE_SRC_CAP;
fixture->actions[0].count = TCPCI_FAULTY_EXT_INFINITE_ACTION;
tcpci_faulty_ext_append_action(&fixture->faulty_snk_ext,
&fixture->actions[0]);
tcpci_partner_common_enable_pd_logging(&fixture->sink, true);
connect_sink_to_port(&fixture->sink, fixture->tcpci_emul,
fixture->charger_emul);
tcpci_partner_common_enable_pd_logging(&fixture->sink, false);
/*
* If test is failing, printing logged message may be useful to diagnose
* problem:
* tcpci_partner_common_print_logged_msgs(&fixture->sink);
*/
/* Check if SourceCapability message alternate with HardReset */
SYS_SLIST_FOR_EACH_CONTAINER(&fixture->sink.msg_log, msg, node)
{
if (expect_hard_reset) {
zassert_equal(msg->sop, TCPCI_MSG_TX_HARD_RESET,
"Expected message %d to be hard reset",
msg_cnt);
} else {
header = sys_get_le16(msg->buf);
zassert_equal(
msg->sop, TCPCI_MSG_SOP,
"Expected message %d to be SOP message, not 0x%x",
msg_cnt, msg->sop);
zassert_not_equal(
PD_HEADER_CNT(header), 0,
"Expected message %d to has at least one data object",
msg_cnt);
zassert_equal(
PD_HEADER_TYPE(header), PD_DATA_SOURCE_CAP,
"Expected message %d to be SourceCapabilities, not 0x%x",
msg_cnt, PD_HEADER_TYPE(header));
}
msg_cnt++;
expect_hard_reset = !expect_hard_reset;
}
}
ZTEST_F(usb_malfunction_sink, test_hard_reset_disconnect)
{
struct ec_response_typec_status typec_status;
int try_count;
/*
* Test if disconnection during the power sequence doesn't have impact
* on next tries
*/
for (try_count = 1; try_count < 5; try_count++) {
/* Connect port partner and check Vconn state */
connect_sink_to_port(&fixture->sink, fixture->tcpci_emul,
fixture->charger_emul);
typec_status = host_cmd_typec_status(fixture->port);
zassert_equal(typec_status.vconn_role, PD_ROLE_VCONN_SRC,
"Vconn should be present after connection (%d)",
try_count);
/* Send hard reset to trigger power sequence on source side */
tcpci_partner_common_send_hard_reset(&fixture->sink);
/*
* Wait for start of power sequence after hard reset and half
* the time of source recovery (first step of power sequence
* when vconn should be disabled)
*/
k_sleep(K_USEC(PD_T_PS_HARD_RESET + PD_T_SRC_RECOVER / 2));
typec_status = host_cmd_typec_status(fixture->port);
zassert_equal(typec_status.vconn_role, PD_ROLE_VCONN_OFF,
"Vconn should be disabled at power sequence (%d)",
try_count);
zassert_true(typec_status.events & PD_STATUS_EVENT_HARD_RESET,
"Hard reset status should be set (%d)", try_count);
/* Disconnect partner at the middle of power sequence */
disconnect_sink_from_port(fixture->tcpci_emul);
}
}
ZTEST_F(usb_malfunction_sink, test_ignore_source_cap_and_pd_disable)
{
struct ec_response_typec_status typec_status;
/*
* Ignore first SourceCapabilities message and discard others by sending
* different messages. This will lead to PD disable.
*/
fixture->actions[0].action_mask = TCPCI_FAULTY_EXT_IGNORE_SRC_CAP;
fixture->actions[0].count = 1;
tcpci_faulty_ext_append_action(&fixture->faulty_snk_ext,
&fixture->actions[0]);
fixture->actions[1].action_mask = TCPCI_FAULTY_EXT_DISCARD_SRC_CAP;
fixture->actions[1].count = TCPCI_FAULTY_EXT_INFINITE_ACTION;
tcpci_faulty_ext_append_action(&fixture->faulty_snk_ext,
&fixture->actions[1]);
connect_sink_to_port(&fixture->sink, fixture->tcpci_emul,
fixture->charger_emul);
typec_status = host_cmd_typec_status(0);
/* Device is connected, but PD wasn't able to establish contract */
zassert_true(typec_status.pd_enabled);
zassert_true(typec_status.dev_connected);
zassert_false(typec_status.sop_connected);
}
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