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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 <zephyr/sys/byteorder.h>
#include <ztest.h>
#include "battery_smart.h"
#include "emul/emul_isl923x.h"
#include "emul/emul_smart_battery.h"
#include "emul/tcpc/emul_tcpci_partner_faulty_snk.h"
#include "emul/tcpc/emul_tcpci_partner_snk.h"
#include "tcpm/tcpci.h"
#include "test/drivers/test_state.h"
#include "test/drivers/utils.h"
#include "usb_pd.h"
struct usb_malfunction_sink_fixture {
struct tcpci_partner_data sink;
struct tcpci_faulty_snk_emul_data faulty_snk_ext;
struct tcpci_snk_emul_data snk_ext;
const struct emul *tcpci_emul;
const struct emul *charger_emul;
struct tcpci_faulty_snk_action actions[2];
};
static void
connect_sink_to_port(struct usb_malfunction_sink_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);
tcpci_emul_set_reg(fixture->tcpci_emul, TCPC_REG_POWER_STATUS,
TCPC_REG_POWER_STATUS_VBUS_DET);
tcpci_emul_set_reg(fixture->tcpci_emul, TCPC_REG_EXT_STATUS,
TCPC_REG_EXT_STATUS_SAFE0V);
tcpci_tcpc_alert(0);
/*
* TODO(b/226567798) Wait for TCPC init and DRPToggle. It is required,
* because tcpci_emul_reset_rule_before reset registers including
* Looking4Connection bit in CC_STATUS register.
*/
k_sleep(K_SECONDS(1));
zassume_ok(tcpci_partner_connect_to_tcpci(&fixture->sink,
fixture->tcpci_emul),
NULL);
/* Wait for PD negotiation and current ramp.
* TODO(b/213906889): Check message timing and contents.
*/
k_sleep(K_SECONDS(10));
}
static inline void disconnect_sink_from_port(
struct usb_malfunction_sink_fixture *fixture)
{
zassume_ok(tcpci_emul_disconnect_partner(fixture->tcpci_emul), NULL);
k_sleep(K_SECONDS(1));
}
static void *usb_malfunction_sink_setup(void)
{
static struct usb_malfunction_sink_fixture test_fixture;
/* Get references for the emulators */
test_fixture.tcpci_emul =
emul_get_binding(DT_LABEL(DT_NODELABEL(tcpci_emul)));
test_fixture.charger_emul =
emul_get_binding(DT_LABEL(DT_NODELABEL(isl923x_emul)));
tcpci_emul_set_rev(test_fixture.tcpci_emul, TCPCI_EMUL_REV2_0_VER1_1);
tcpc_config[0].flags = tcpc_config[0].flags |
TCPC_FLAGS_TCPCI_REV2_0;
/* Initialized the sink to request 5V and 3A */
tcpci_partner_init(&test_fixture.sink, PD_REV20);
test_fixture.sink.extensions =
tcpci_faulty_snk_emul_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_snk_emul_clear_actions_list(&fixture->faulty_snk_ext);
disconnect_sink_from_port(fixture);
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
*/
this->actions[0].action_mask = TCPCI_FAULTY_SNK_FAIL_SRC_CAP;
this->actions[0].count = TCPCI_FAULTY_SNK_INFINITE_ACTION;
tcpci_faulty_snk_emul_append_action(&this->faulty_snk_ext,
&this->actions[0]);
connect_sink_to_port(this);
typec_status = host_cmd_typec_status(0);
/* Device is connected, but PD wasn't able to establish contract */
zassert_true(typec_status.pd_enabled, NULL);
zassert_true(typec_status.dev_connected, NULL);
zassert_false(typec_status.sop_connected, NULL);
}
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
*/
this->actions[0].action_mask = TCPCI_FAULTY_SNK_FAIL_SRC_CAP;
this->actions[0].count = 3;
tcpci_faulty_snk_emul_append_action(&this->faulty_snk_ext,
&this->actions[0]);
connect_sink_to_port(this);
typec_status = host_cmd_typec_status(0);
zassert_true(typec_status.pd_enabled, NULL);
zassert_true(typec_status.dev_connected, NULL);
zassert_true(typec_status.sop_connected, NULL);
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;
this->actions[0].action_mask = TCPCI_FAULTY_SNK_IGNORE_SRC_CAP;
this->actions[0].count = TCPCI_FAULTY_SNK_INFINITE_ACTION;
tcpci_faulty_snk_emul_append_action(&this->faulty_snk_ext,
&this->actions[0]);
tcpci_partner_common_enable_pd_logging(&this->sink, true);
connect_sink_to_port(this);
tcpci_partner_common_enable_pd_logging(&this->sink, false);
/*
* If test is failing, printing logged message may be useful to diagnose
* problem:
* tcpci_partner_common_print_logged_msgs(&this->sink);
*/
/* Check if SourceCapability message alternate with HardReset */
SYS_SLIST_FOR_EACH_CONTAINER(&this->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_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.
*/
this->actions[0].action_mask = TCPCI_FAULTY_SNK_IGNORE_SRC_CAP;
this->actions[0].count = 1;
tcpci_faulty_snk_emul_append_action(&this->faulty_snk_ext,
&this->actions[0]);
this->actions[1].action_mask = TCPCI_FAULTY_SNK_DISCARD_SRC_CAP;
this->actions[1].count = TCPCI_FAULTY_SNK_INFINITE_ACTION;
tcpci_faulty_snk_emul_append_action(&this->faulty_snk_ext,
&this->actions[1]);
connect_sink_to_port(this);
typec_status = host_cmd_typec_status(0);
/* Device is connected, but PD wasn't able to establish contract */
zassert_true(typec_status.pd_enabled, NULL);
zassert_true(typec_status.dev_connected, NULL);
zassert_false(typec_status.sop_connected, NULL);
}
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