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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 "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 "usb_pd.h"
struct usb_attach_5v_3a_pd_sink_fixture {
struct tcpci_snk_emul sink_5v_3a;
const struct emul *tcpci_emul;
const struct emul *charger_emul;
};
static void
connect_sink_to_port(struct usb_attach_5v_3a_pd_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);
zassume_ok(tcpci_snk_emul_connect_to_tcpci(
&fixture->sink_5v_3a.data,
&fixture->sink_5v_3a.common_data,
&fixture->sink_5v_3a.ops, 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_attach_5v_3a_pd_sink_fixture *fixture)
{
zassume_ok(tcpci_emul_disconnect_partner(fixture->tcpci_emul), NULL);
k_sleep(K_SECONDS(1));
}
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_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);
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_snk_emul_init(&test_fixture->sink_5v_3a);
test_fixture->sink_5v_3a.data.pdo[1] =
PDO_FIXED(5000, 3000, PDO_FIXED_UNCONSTRAINED);
connect_sink_to_port(test_fixture);
}
static void usb_attach_5v_3a_pd_sink_after(void *data)
{
disconnect_sink_from_port(
(struct usb_attach_5v_3a_pd_sink_fixture *)data);
}
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(this->sink_5v_3a.data.pd_completed, NULL);
}
ZTEST(usb_attach_5v_3a_pd_sink, test_battery_is_discharging)
{
struct i2c_emul *i2c_emul =
sbat_emul_get_ptr(DT_DEP_ORD(DT_NODELABEL(battery)));
uint16_t battery_status;
zassume_ok(sbat_emul_get_word_val(i2c_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, 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_attach_5v_3a_pd_sink, test_disconnect_battery_discharging)
{
struct i2c_emul *i2c_emul =
sbat_emul_get_ptr(DT_DEP_ORD(DT_NODELABEL(battery)));
uint16_t battery_status;
disconnect_sink_from_port(this);
zassert_ok(sbat_emul_get_word_val(i2c_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(this);
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(this);
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(this);
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);
}
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