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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 <stdint.h>
#include <zephyr/ztest.h>
#include "battery_smart.h"
#include "emul/emul_isl923x.h"
#include "emul/emul_smart_battery.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 "timer.h"
#include "usb_pd.h"
struct usb_attach_5v_3a_pd_sink_fixture {
struct tcpci_partner_data sink_5v_3a;
struct tcpci_snk_emul_data snk_ext;
const struct emul *tcpci_emul;
const struct emul *charger_emul;
};
/* Chromebooks only charge PD partners at 5v */
#define TEST_SRC_PORT_VBUS_MV 5000
#define TEST_SRC_PORT_TARGET_MA 3000
#define TEST_INITIAL_SINK_CAP \
PDO_FIXED(TEST_SRC_PORT_VBUS_MV, TEST_SRC_PORT_TARGET_MA, 0)
/* Only used to verify sink capabilities being received by SRC port */
#define TEST_ADDITIONAL_SINK_CAP PDO_FIXED(TEST_SRC_PORT_VBUS_MV, 5000, 0)
static void *usb_attach_5v_3a_pd_sink_setup(void)
{
static struct usb_attach_5v_3a_pd_sink_fixture test_fixture;
/* Get references for the emulators */
test_fixture.tcpci_emul = EMUL_GET_USBC_BINDING(0, tcpc);
test_fixture.charger_emul = EMUL_GET_USBC_BINDING(0, chg);
return &test_fixture;
}
static void usb_attach_5v_3a_pd_sink_before(void *data)
{
struct usb_attach_5v_3a_pd_sink_fixture *test_fixture = 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));
/* Initialized the sink to request 5V and 3A */
tcpci_partner_init(&test_fixture->sink_5v_3a, PD_REV20);
test_fixture->sink_5v_3a.extensions = tcpci_snk_emul_init(
&test_fixture->snk_ext, &test_fixture->sink_5v_3a, NULL);
test_fixture->snk_ext.pdo[0] = TEST_INITIAL_SINK_CAP;
test_fixture->snk_ext.pdo[1] = TEST_ADDITIONAL_SINK_CAP;
connect_sink_to_port(&test_fixture->sink_5v_3a,
test_fixture->tcpci_emul,
test_fixture->charger_emul);
}
static void usb_attach_5v_3a_pd_sink_after(void *data)
{
struct usb_attach_5v_3a_pd_sink_fixture *test_fixture = data;
disconnect_sink_from_port(test_fixture->tcpci_emul);
}
ZTEST_SUITE(usb_attach_5v_3a_pd_sink, drivers_predicate_post_main,
usb_attach_5v_3a_pd_sink_setup, usb_attach_5v_3a_pd_sink_before,
usb_attach_5v_3a_pd_sink_after, NULL);
ZTEST_F(usb_attach_5v_3a_pd_sink, test_partner_pd_completed)
{
zassert_true(fixture->snk_ext.pd_completed, NULL);
}
ZTEST(usb_attach_5v_3a_pd_sink, test_battery_is_discharging)
{
const struct emul *emul = EMUL_DT_GET(DT_NODELABEL(battery));
uint16_t battery_status;
zassume_ok(sbat_emul_get_word_val(emul, SB_BATTERY_STATUS,
&battery_status),
NULL);
zassert_equal(battery_status & STATUS_DISCHARGING, STATUS_DISCHARGING,
"Battery is not discharging: %d", battery_status);
}
ZTEST(usb_attach_5v_3a_pd_sink, test_typec_status)
{
struct ec_response_typec_status status = host_cmd_typec_status(0);
zassert_true(status.pd_enabled, "PD is disabled");
zassert_true(status.dev_connected, "Device disconnected");
zassert_true(status.sop_connected, "Charger is not SOP capable");
zassert_equal(status.sink_cap_count, 2,
"Expected 2 sink PDOs, but got %d",
status.sink_cap_count);
zassert_equal(status.power_role, PD_ROLE_SOURCE,
"Expected power role to be %d, but got %d",
PD_ROLE_SOURCE, status.power_role);
}
ZTEST(usb_attach_5v_3a_pd_sink, test_power_info)
{
struct ec_response_usb_pd_power_info 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, TEST_SRC_PORT_VBUS_MV, 500,
"Charging voltage expected to be near 5000mV, but was %dmV",
info.meas.voltage_now);
zassert_equal(info.meas.current_max, TEST_SRC_PORT_TARGET_MA,
"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_attach_5v_3a_pd_sink, test_disconnect_battery_discharging)
{
const struct emul *emul = EMUL_DT_GET(DT_NODELABEL(battery));
uint16_t battery_status;
disconnect_sink_from_port(fixture->tcpci_emul);
zassert_ok(sbat_emul_get_word_val(emul, SB_BATTERY_STATUS,
&battery_status),
NULL);
zassert_equal(battery_status & STATUS_DISCHARGING, STATUS_DISCHARGING,
"Battery is not discharging: %d", battery_status);
}
ZTEST_F(usb_attach_5v_3a_pd_sink, test_disconnect_charge_state)
{
struct ec_response_charge_state charge_state;
disconnect_sink_from_port(fixture->tcpci_emul);
charge_state = host_cmd_charge_state(0);
zassert_false(charge_state.get_state.ac, "AC_OK not triggered");
zassert_equal(charge_state.get_state.chg_current, 0,
"Max charge current expected 0mA, but was %dmA",
charge_state.get_state.chg_current);
zassert_equal(charge_state.get_state.chg_input_current,
CONFIG_PLATFORM_EC_CHARGER_INPUT_CURRENT,
"Charge input current limit expected %dmA, but was %dmA",
CONFIG_PLATFORM_EC_CHARGER_INPUT_CURRENT,
charge_state.get_state.chg_input_current);
}
ZTEST_F(usb_attach_5v_3a_pd_sink, test_disconnect_typec_status)
{
struct ec_response_typec_status typec_status;
disconnect_sink_from_port(fixture->tcpci_emul);
typec_status = host_cmd_typec_status(0);
zassert_false(typec_status.pd_enabled, NULL);
zassert_false(typec_status.dev_connected, NULL);
zassert_false(typec_status.sop_connected, NULL);
zassert_equal(typec_status.source_cap_count, 0,
"Expected 0 source caps, but got %d",
typec_status.source_cap_count);
zassert_equal(typec_status.power_role, USB_CHG_TYPE_NONE,
"Expected power role to be %d, but got %d",
USB_CHG_TYPE_NONE, typec_status.power_role);
}
ZTEST_F(usb_attach_5v_3a_pd_sink, test_disconnect_power_info)
{
struct ec_response_usb_pd_power_info power_info;
disconnect_sink_from_port(fixture->tcpci_emul);
power_info = host_cmd_power_info(0);
zassert_equal(power_info.role, USB_PD_PORT_POWER_DISCONNECTED,
"Expected power role to be %d, but got %d",
USB_PD_PORT_POWER_DISCONNECTED, power_info.role);
zassert_equal(power_info.type, USB_CHG_TYPE_NONE,
"Expected charger type to be %d, but got %s",
USB_CHG_TYPE_NONE, power_info.type);
zassert_equal(power_info.max_power, 0,
"Expected the maximum power to be 0uW, but got %duW",
power_info.max_power);
zassert_equal(power_info.meas.voltage_max, 0,
"Expected maximum voltage of 0mV, but got %dmV",
power_info.meas.voltage_max);
zassert_within(power_info.meas.voltage_now, 5, 5,
"Expected present voltage near 0mV, but got %dmV",
power_info.meas.voltage_now);
zassert_equal(power_info.meas.current_max, 0,
"Expected maximum current of 0mA, but got %dmA",
power_info.meas.current_max);
zassert_true(power_info.meas.current_lim >= 0,
"Expected the PD current limit to be >= 0, but got %dmA",
power_info.meas.current_lim);
}
/**
* @brief TestPurpose: Verify GotoMin message.
*
* @details
* - TCPM is configured initially as Source
* - Initiate Goto_Min request
* - Verify emulated sink PD negotiation is completed
*
* Expected Results
* - Sink completes Goto Min PD negotiation
*/
ZTEST_F(usb_attach_5v_3a_pd_sink, verify_goto_min)
{
pd_dpm_request(0, DPM_REQUEST_GOTO_MIN);
k_sleep(K_SECONDS(1));
zassert_true(fixture->snk_ext.pd_completed, NULL);
}
/**
* @brief TestPurpose: Verify Ping message.
*
* @details
* - TCPM is configured initially as Source
* - Initiate Ping request
* - Verify emulated sink received ping message
*
* Expected Results
* - Sink received ping message
*/
ZTEST_F(usb_attach_5v_3a_pd_sink, verify_ping_msg)
{
tcpci_snk_emul_clear_ping_received(&fixture->snk_ext);
pd_dpm_request(0, DPM_REQUEST_SEND_PING);
k_sleep(K_USEC(PD_T_SOURCE_ACTIVITY));
zassert_true(fixture->snk_ext.ping_received, NULL);
}
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