diff options
Diffstat (limited to 'zephyr/test/drivers/src/tcpci.c')
| -rw-r--r-- | zephyr/test/drivers/src/tcpci.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/zephyr/test/drivers/src/tcpci.c b/zephyr/test/drivers/src/tcpci.c new file mode 100644 index 0000000000..97578745cd --- /dev/null +++ b/zephyr/test/drivers/src/tcpci.c @@ -0,0 +1,160 @@ +/* Copyright 2021 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 <zephyr.h> +#include <ztest.h> +#include <drivers/gpio.h> +#include <drivers/gpio/gpio_emul.h> + +#include "common.h" +#include "ec_tasks.h" +#include "emul/emul_common_i2c.h" +#include "emul/emul_tcpci.h" +#include "hooks.h" +#include "i2c.h" +#include "stubs.h" + +#include "tcpm/tcpci.h" + +#define EMUL_LABEL DT_NODELABEL(tcpci_emul) + +/** Check TCPC register value */ +static void check_tcpci_reg_f(const struct emul *emul, int reg, + uint16_t exp_val, int line) +{ + uint16_t reg_val; + + zassert_ok(tcpci_emul_get_reg(emul, reg, ®_val), + "Failed tcpci_emul_get_reg(); line: %d", line); + zassert_equal(exp_val, reg_val, "Expected 0x%x, got 0x%x; line: %d", + exp_val, reg_val, line); +} +#define check_tcpci_reg(emul, reg, exp_val) \ + check_tcpci_reg_f((emul), (reg), (exp_val), __LINE__) + +/** Test TCPCI init and vbus level */ +static void test_tcpci_init(void) +{ + const struct emul *emul = emul_get_binding(DT_LABEL(EMUL_LABEL)); + struct i2c_emul *i2c_emul = tcpci_emul_get_i2c_emul(emul); + uint16_t exp_mask; + + tcpc_config[USBC_PORT_C0].flags = TCPC_FLAGS_TCPCI_REV2_0 & + TCPC_FLAGS_TCPCI_REV2_0_NO_VSAFE0V; + tcpci_emul_set_rev(emul, TCPCI_EMUL_REV2_0_VER1_1); + + /* Test fail on power status read */ + i2c_common_emul_set_read_fail_reg(i2c_emul, TCPC_REG_POWER_STATUS); + zassert_equal(EC_ERROR_INVAL, tcpci_tcpm_init(USBC_PORT_C0), NULL); + i2c_common_emul_set_read_fail_reg(i2c_emul, + I2C_COMMON_EMUL_NO_FAIL_REG); + + /* Test fail on uninitialised bit set */ + tcpci_emul_set_reg(emul, TCPC_REG_POWER_STATUS, + TCPC_REG_POWER_STATUS_UNINIT); + zassert_equal(EC_ERROR_TIMEOUT, tcpci_tcpm_init(USBC_PORT_C0), NULL); + + /* + * Set expected alert mask. It is used in test until vSafe0V tcpc + * config flag is revmoved. + */ + exp_mask = TCPC_REG_ALERT_TX_SUCCESS | TCPC_REG_ALERT_TX_FAILED | + TCPC_REG_ALERT_TX_DISCARDED | TCPC_REG_ALERT_RX_STATUS | + TCPC_REG_ALERT_RX_HARD_RST | TCPC_REG_ALERT_CC_STATUS | + TCPC_REG_ALERT_FAULT | TCPC_REG_ALERT_POWER_STATUS; + + /* Set TCPCI emulator VBUS to safe0v (disconnected) */ + tcpci_emul_set_reg(emul, TCPC_REG_POWER_STATUS, 0); + + /* Test init with VBUS safe0v without vSafe0V tcpc config flag */ + zassert_equal(EC_SUCCESS, tcpci_tcpm_init(USBC_PORT_C0), NULL); + zassert_true(tcpci_tcpm_check_vbus_level(USBC_PORT_C0, VBUS_SAFE0V), + NULL); + zassert_false(tcpci_tcpm_check_vbus_level(USBC_PORT_C0, VBUS_PRESENT), + NULL); + check_tcpci_reg(emul, TCPC_REG_POWER_STATUS_MASK, + TCPC_REG_POWER_STATUS_VBUS_PRES); + check_tcpci_reg(emul, TCPC_REG_ALERT_MASK, exp_mask); + + /* Set TCPCI emulator VBUS to present (connected, above 4V) */ + tcpci_emul_set_reg(emul, TCPC_REG_POWER_STATUS, + TCPC_REG_POWER_STATUS_VBUS_PRES); + + /* Test init with VBUS present without vSafe0V tcpc config flag */ + zassert_equal(EC_SUCCESS, tcpci_tcpm_init(USBC_PORT_C0), NULL); + zassert_false(tcpci_tcpm_check_vbus_level(USBC_PORT_C0, VBUS_SAFE0V), + NULL); + zassert_true(tcpci_tcpm_check_vbus_level(USBC_PORT_C0, VBUS_PRESENT), + NULL); + check_tcpci_reg(emul, TCPC_REG_POWER_STATUS_MASK, + TCPC_REG_POWER_STATUS_VBUS_PRES); + check_tcpci_reg(emul, TCPC_REG_ALERT_MASK, exp_mask); + + /* Disable vSafe0V tcpc config flag and update expected alert mask */ + exp_mask |= TCPC_REG_ALERT_EXT_STATUS; + tcpc_config[USBC_PORT_C0].flags = TCPC_FLAGS_TCPCI_REV2_0; + + /* Test init with VBUS present with vSafe0V tcpc config flag */ + zassert_equal(EC_SUCCESS, tcpci_tcpm_init(USBC_PORT_C0), NULL); + zassert_false(tcpci_tcpm_check_vbus_level(USBC_PORT_C0, VBUS_SAFE0V), + NULL); + zassert_true(tcpci_tcpm_check_vbus_level(USBC_PORT_C0, VBUS_PRESENT), + NULL); + check_tcpci_reg(emul, TCPC_REG_POWER_STATUS_MASK, + TCPC_REG_POWER_STATUS_VBUS_PRES); + check_tcpci_reg(emul, TCPC_REG_ALERT_MASK, exp_mask); + + /* Set TCPCI emulator VBUS to safe0v (disconnected) */ + tcpci_emul_set_reg(emul, TCPC_REG_POWER_STATUS, 0); + tcpci_emul_set_reg(emul, TCPC_REG_EXT_STATUS, + TCPC_REG_EXT_STATUS_SAFE0V); + + /* Test init with VBUS safe0v with vSafe0V tcpc config flag */ + zassert_equal(EC_SUCCESS, tcpci_tcpm_init(USBC_PORT_C0), NULL); + zassert_true(tcpci_tcpm_check_vbus_level(USBC_PORT_C0, VBUS_SAFE0V), + NULL); + zassert_false(tcpci_tcpm_check_vbus_level(USBC_PORT_C0, VBUS_PRESENT), + NULL); + check_tcpci_reg(emul, TCPC_REG_POWER_STATUS_MASK, + TCPC_REG_POWER_STATUS_VBUS_PRES); + check_tcpci_reg(emul, TCPC_REG_ALERT_MASK, exp_mask); + + /* + * Set TCPCI emulator VBUS to disconnected but not at vSafe0V + * (VBUS in 0.8V - 3.5V range) + */ + tcpci_emul_set_reg(emul, TCPC_REG_EXT_STATUS, 0); + + /* Test init with VBUS not safe0v with vSafe0V tcpc config flag */ + zassert_equal(EC_SUCCESS, tcpci_tcpm_init(USBC_PORT_C0), NULL); + zassert_false(tcpci_tcpm_check_vbus_level(USBC_PORT_C0, VBUS_SAFE0V), + NULL); + zassert_false(tcpci_tcpm_check_vbus_level(USBC_PORT_C0, VBUS_PRESENT), + NULL); + check_tcpci_reg(emul, TCPC_REG_POWER_STATUS_MASK, + TCPC_REG_POWER_STATUS_VBUS_PRES); + check_tcpci_reg(emul, TCPC_REG_ALERT_MASK, exp_mask); +} + +/** Test TCPCI release */ +static void test_tcpci_release(void) +{ + const struct emul *emul = emul_get_binding(DT_LABEL(EMUL_LABEL)); + + tcpci_emul_set_reg(emul, TCPC_REG_ALERT, 0xffff); + + zassert_equal(EC_SUCCESS, tcpci_tcpm_release(USBC_PORT_C0), NULL); + check_tcpci_reg(emul, TCPC_REG_POWER_STATUS_MASK, 0); + check_tcpci_reg(emul, TCPC_REG_ALERT_MASK, 0); + check_tcpci_reg(emul, TCPC_REG_ALERT, 0); +} + +void test_suite_tcpci(void) +{ + ztest_test_suite(tcpci, + ztest_user_unit_test(test_tcpci_init), + ztest_user_unit_test(test_tcpci_release)); + ztest_run_test_suite(tcpci); +} |