diff options
Diffstat (limited to 'zephyr/test/drivers/default/src/integration/usbc/usb_pd_bist_shared.c')
| -rw-r--r-- | zephyr/test/drivers/default/src/integration/usbc/usb_pd_bist_shared.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/zephyr/test/drivers/default/src/integration/usbc/usb_pd_bist_shared.c b/zephyr/test/drivers/default/src/integration/usbc/usb_pd_bist_shared.c new file mode 100644 index 0000000000..9c76f862f8 --- /dev/null +++ b/zephyr/test/drivers/default/src/integration/usbc/usb_pd_bist_shared.c @@ -0,0 +1,193 @@ +/* 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 <zephyr/ztest.h> + +#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" + +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); +} + +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); + zassume_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); + zassume_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); + zassume_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); + zassume_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"); +} |