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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 "adc.h"
#include "baseboard_usbc_config.h"
#include "charge_manager.h"
#include "driver/ppc/syv682x.h"
#include "driver/ppc/syv682x_public.h"
#include "emul/emul_common_i2c.h"
#include "emul/emul_syv682x.h"
#include "i2c/i2c.h"
#include "test_state.h"
#include "usb_pd.h"
#include "usbc_ppc.h"
#include <zephyr/devicetree.h>
#include <zephyr/drivers/emul.h>
#include <zephyr/ztest.h>
static bool ppc_sink_enabled(int port)
{
const struct emul *emul = (port == 0) ?
EMUL_DT_GET(DT_NODELABEL(ppc0_emul)) :
EMUL_DT_GET(DT_NODELABEL(ppc1_emul));
uint8_t val = 0;
syv682x_emul_get_reg(emul, SYV682X_CONTROL_1_REG, &val);
return !(val & (SYV682X_CONTROL_1_PWR_ENB | SYV682X_CONTROL_1_HV_DR));
}
ZTEST(usbc_config, test_set_active_charge_port)
{
/* reset ppc state */
zassert_ok(board_set_active_charge_port(CHARGE_PORT_NONE), NULL);
zassert_false(ppc_sink_enabled(0), NULL);
zassert_false(ppc_sink_enabled(1), NULL);
/* sourcing port 0, expect port 0 not sinkable */
zassert_ok(pd_set_power_supply_ready(0));
zassert_not_equal(board_set_active_charge_port(0), 0, NULL);
zassert_true(board_vbus_source_enabled(0), NULL);
zassert_false(board_vbus_source_enabled(1), NULL);
zassert_false(ppc_sink_enabled(0), NULL);
zassert_false(ppc_sink_enabled(1), NULL);
/* sinking port 1 */
zassert_ok(board_set_active_charge_port(1), NULL);
zassert_false(ppc_sink_enabled(0), NULL);
zassert_true(ppc_sink_enabled(1), NULL);
/*
* sinking an invalid port should return error and doesn't change
* any state
*/
zassert_not_equal(board_set_active_charge_port(2), 0, NULL);
zassert_true(board_vbus_source_enabled(0), NULL);
zassert_false(board_vbus_source_enabled(1), NULL);
zassert_false(ppc_sink_enabled(0), NULL);
zassert_true(ppc_sink_enabled(1), NULL);
/* turn off sourcing, sinking port 0 */
pd_power_supply_reset(0);
zassert_ok(board_set_active_charge_port(0), NULL);
zassert_true(ppc_sink_enabled(0), NULL);
zassert_false(ppc_sink_enabled(1), NULL);
/* sinking port 1 */
zassert_ok(board_set_active_charge_port(1), NULL);
zassert_false(ppc_sink_enabled(0), NULL);
zassert_true(ppc_sink_enabled(1), NULL);
/* back to port 0 */
zassert_ok(board_set_active_charge_port(0), NULL);
zassert_true(ppc_sink_enabled(0), NULL);
zassert_false(ppc_sink_enabled(1), NULL);
/* reset */
zassert_ok(board_set_active_charge_port(CHARGE_PORT_NONE), NULL);
zassert_false(board_vbus_source_enabled(0), NULL);
zassert_false(board_vbus_source_enabled(1), NULL);
zassert_false(ppc_sink_enabled(0), NULL);
zassert_false(ppc_sink_enabled(1), NULL);
}
ZTEST(usbc_config, test_set_active_charge_port_fail)
{
const struct emul *ppc0 = EMUL_DT_GET(DT_NODELABEL(ppc0_emul));
/* Verify that failure on ppc0 doesn't affect ppc1 */
i2c_common_emul_set_write_fail_reg(
emul_syv682x_get_i2c_common_data(ppc0),
I2C_COMMON_EMUL_FAIL_ALL_REG);
zassert_ok(board_set_active_charge_port(1), NULL);
zassert_true(ppc_sink_enabled(1), NULL);
zassert_ok(board_set_active_charge_port(CHARGE_PORT_NONE), NULL);
zassert_false(ppc_sink_enabled(1), NULL);
zassert_ok(board_set_active_charge_port(1), NULL);
zassert_true(ppc_sink_enabled(1), NULL);
/* trying to enable ppc0 results in error */
zassert_not_equal(board_set_active_charge_port(0), 0, NULL);
zassert_false(ppc_sink_enabled(1), NULL);
}
ZTEST(usbc_config, test_adc_channel)
{
zassert_equal(board_get_vbus_adc(0), ADC_VBUS_C0, NULL);
zassert_equal(board_get_vbus_adc(1), ADC_VBUS_C1, NULL);
zassert_equal(board_get_vbus_adc(99), ADC_VBUS_C0, NULL);
}
static void reset_ppc_state(void *fixture)
{
const struct emul *ppc0 = EMUL_DT_GET(DT_NODELABEL(ppc0_emul));
const struct emul *ppc1 = EMUL_DT_GET(DT_NODELABEL(ppc1_emul));
i2c_common_emul_set_write_fail_reg(
emul_syv682x_get_i2c_common_data(ppc0),
I2C_COMMON_EMUL_NO_FAIL_REG);
i2c_common_emul_set_write_fail_reg(
emul_syv682x_get_i2c_common_data(ppc1),
I2C_COMMON_EMUL_NO_FAIL_REG);
ppc_vbus_source_enable(0, false);
ppc_vbus_source_enable(1, false);
board_set_active_charge_port(CHARGE_PORT_NONE);
}
ZTEST_SUITE(usbc_config, krabby_predicate_post_main, NULL, reset_ppc_state,
NULL, NULL);
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