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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 "emul/emul_isl923x.h"
#include "emul/emul_smart_battery.h"
#include "emul/tcpc/emul_tcpci_partner_snk.h"
#include "test/drivers/stubs.h"
#include "test/drivers/test_state.h"
#include "test/drivers/utils.h"
#include "usb_common.h"
#include "usb_pd.h"
#include "util.h"
#include <zephyr/ztest.h>
struct usb_pd_bist_shared_fixture {
struct tcpci_partner_data sink_5v_500ma;
struct tcpci_snk_emul_data snk_ext_500ma;
struct tcpci_partner_data src;
struct tcpci_src_emul_data src_ext;
const struct emul *tcpci_emul; /* USBC_PORT_C0 in dts */
const struct emul *tcpci_ps8xxx_emul; /* USBC_PORT_C1 in dts */
const struct emul *charger_emul;
};
static void *usb_pd_bist_shared_setup(void)
{
static struct usb_pd_bist_shared_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);
test_fixture.tcpci_ps8xxx_emul = EMUL_GET_USBC_BINDING(1, tcpc);
return &test_fixture;
}
static void usb_pd_bist_shared_before(void *data)
{
struct usb_pd_bist_shared_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 500mA */
tcpci_partner_init(&test_fixture->sink_5v_500ma, PD_REV30);
test_fixture->sink_5v_500ma.extensions =
tcpci_snk_emul_init(&test_fixture->snk_ext_500ma,
&test_fixture->sink_5v_500ma, NULL);
test_fixture->snk_ext_500ma.pdo[0] = PDO_FIXED(5000, 500, 0);
/* Initialized the source */
tcpci_partner_init(&test_fixture->src, PD_REV30);
test_fixture->src.extensions = tcpci_src_emul_init(
&test_fixture->src_ext, &test_fixture->src, NULL);
/* Initially connect the 5V 500mA partner to C0 */
connect_sink_to_port(&test_fixture->sink_5v_500ma,
test_fixture->tcpci_emul,
test_fixture->charger_emul);
}
static void usb_pd_bist_shared_after(void *data)
{
struct usb_pd_bist_shared_fixture *test_fixture = data;
/* Disocnnect C0 as sink, C1 as source */
disconnect_sink_from_port(test_fixture->tcpci_emul);
disconnect_source_from_port(test_fixture->tcpci_ps8xxx_emul,
test_fixture->charger_emul);
host_cmd_typec_control_bist_share_mode(USBC_PORT_C0, 0);
}
ZTEST_SUITE(usb_pd_bist_shared, drivers_predicate_post_main,
usb_pd_bist_shared_setup, usb_pd_bist_shared_before,
usb_pd_bist_shared_after, NULL);
ZTEST_F(usb_pd_bist_shared, verify_bist_shared_mode)
{
uint32_t bist_data;
uint32_t f5v_cap;
/*
* Verify we were offered the 1.5A source cap because of our low current
* needs initially
*/
f5v_cap = fixture->snk_ext_500ma.last_5v_source_cap;
/* Capability should be 5V fixed, 1.5 A */
zassert_equal((f5v_cap & PDO_TYPE_MASK), PDO_TYPE_FIXED,
"PDO type wrong");
zassert_equal(PDO_FIXED_VOLTAGE(f5v_cap), 5000, "PDO voltage wrong");
zassert_equal(PDO_FIXED_CURRENT(f5v_cap), 1500,
"PDO initial current wrong");
/* Start up BIST shared test mode */
bist_data = BDO(BDO_MODE_SHARED_ENTER, 0);
zassert_ok(tcpci_partner_send_data_msg(&fixture->sink_5v_500ma,
PD_DATA_BIST, &bist_data, 1, 0),
"Failed to send BIST enter message");
/* The DUT has tBISTSharedTestMode (1 second) to offer us 3A now */
k_sleep(K_SECONDS(1));
f5v_cap = fixture->snk_ext_500ma.last_5v_source_cap;
/* Capability should be 5V fixed, 3.0 A */
zassert_equal((f5v_cap & PDO_TYPE_MASK), PDO_TYPE_FIXED,
"PDO type wrong");
zassert_equal(PDO_FIXED_VOLTAGE(f5v_cap), 5000, "PDO voltage wrong");
zassert_equal(PDO_FIXED_CURRENT(f5v_cap), 3000,
"PDO current didn't increase in BIST mode");
/* Leave BIST shared test mode */
bist_data = BDO(BDO_MODE_SHARED_EXIT, 0);
zassert_ok(tcpci_partner_send_data_msg(&fixture->sink_5v_500ma,
PD_DATA_BIST, &bist_data, 1, 0),
"Failed to send BIST exit message");
/*
* The DUT may now execute ErrorRecovery or simply send a new
* Source_Cap. Either way, we should go back to 1.5 A
*/
k_sleep(K_SECONDS(5));
f5v_cap = fixture->snk_ext_500ma.last_5v_source_cap;
/* Capability should be 5V fixed, 1.5 A */
zassert_equal((f5v_cap & PDO_TYPE_MASK), PDO_TYPE_FIXED,
"PDO type wrong");
zassert_equal(PDO_FIXED_VOLTAGE(f5v_cap), 5000, "PDO voltage wrong");
zassert_equal(PDO_FIXED_CURRENT(f5v_cap), 1500,
"PDO current didn't decrease after BIST exit");
}
ZTEST_F(usb_pd_bist_shared, verify_bist_shared_no_snk_entry)
{
uint32_t bist_data;
uint32_t f5v_cap;
/*
* Ensure we only enter BIST shared mode when acting as a source. We
* must not enter shared mode from PE_SNK_Ready.
*/
/* Attach a new source */
connect_source_to_port(&fixture->src, &fixture->src_ext, 1,
fixture->tcpci_ps8xxx_emul,
fixture->charger_emul);
/* Have the source send the BIST Enter Mode */
bist_data = BDO(BDO_MODE_SHARED_ENTER, 0);
zassert_ok(tcpci_partner_send_data_msg(&fixture->src, PD_DATA_BIST,
&bist_data, 1, 0),
"Failed to send BIST enter message");
/* Wait tBISTSharedTestMode (1 second) */
k_sleep(K_SECONDS(1));
/* Verify our low power sink on C0 still only has 1.5 A */
f5v_cap = fixture->snk_ext_500ma.last_5v_source_cap;
/* Capability should be 5V fixed, 1.5 A */
zassert_equal((f5v_cap & PDO_TYPE_MASK), PDO_TYPE_FIXED,
"PDO type wrong");
zassert_equal(PDO_FIXED_VOLTAGE(f5v_cap), 5000, "PDO voltage wrong");
zassert_equal(PDO_FIXED_CURRENT(f5v_cap), 1500,
"PDO current incorrect after bad BIST entry");
}
ZTEST_F(usb_pd_bist_shared, verify_bist_shared_exit_no_action)
{
uint32_t bist_data;
uint32_t f5v_cap;
/*
* Verify that if we receive a BIST shared mode exit with no entry, we
* take no action on the port.
*/
tcpci_snk_emul_clear_last_5v_cap(&fixture->snk_ext_500ma);
bist_data = BDO(BDO_MODE_SHARED_EXIT, 0);
zassert_ok(tcpci_partner_send_data_msg(&fixture->sink_5v_500ma,
PD_DATA_BIST, &bist_data, 1, 0),
"Failed to send BIST exit message");
/* Wait for the time it would take to settle out exit */
k_sleep(K_SECONDS(5));
/* Verify we didn't receive any new source caps due to the mode exit */
f5v_cap = fixture->snk_ext_500ma.last_5v_source_cap;
zassert_equal(f5v_cap, 0, "Received unexpected source cap");
}
ZTEST_F(usb_pd_bist_shared, verify_control_bist_shared_mode)
{
uint32_t f5v_cap;
host_cmd_typec_control_bist_share_mode(USBC_PORT_C0, 1);
zassert_ok(tcpci_partner_send_control_msg(&fixture->sink_5v_500ma,
PD_CTRL_GET_SOURCE_CAP, 0),
"Failed to send get src cap");
/* wait tSenderResponse (26 ms) */
k_sleep(K_MSEC(26));
/*
* Verify we were offered the 3A source cap because of
* bist share mode be enabled.
*/
f5v_cap = fixture->snk_ext_500ma.last_5v_source_cap;
/* Capability should be 5V fixed, 3 A */
zassert_equal((f5v_cap & PDO_TYPE_MASK), PDO_TYPE_FIXED,
"PDO type wrong");
zassert_equal(PDO_FIXED_VOLTAGE(f5v_cap), 5000, "PDO voltage wrong");
zassert_equal(PDO_FIXED_CURRENT(f5v_cap), 3000,
"PDO initial current wrong");
zassert_equal(typec_get_default_current_limit_rp(USBC_PORT_C0),
TYPEC_RP_3A0, "Default rp not 3A");
host_cmd_typec_control_bist_share_mode(USBC_PORT_C0, 0);
}
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