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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 "zephyr/kernel.h"
#include <zephyr/drivers/gpio/gpio_emul.h>
#include <zephyr/fff.h>
#include <zephyr/ztest.h>
#include "gpio_signal.h"
#include "gpio/gpio_int.h"
#include "hooks.h"
FAKE_VOID_FUNC(typec_set_sbu, int, bool);
/* fake definitions to pass build */
FAKE_VOID_FUNC(bmi3xx_interrupt, enum gpio_signal);
FAKE_VOID_FUNC(x_ec_interrupt, enum gpio_signal);
#define FFF_FAKES_LIST(FAKE) \
FAKE(typec_set_sbu) \
FAKE(bmi3xx_interrupt) \
FAKE(x_ec_interrupt)
struct kingler_ccd_fixture {
int default_ccd_lvl;
int default_aux_path_lvl;
};
static void *ccd_setup(void)
{
static struct kingler_ccd_fixture f;
return &f;
}
static void kingler_ccd_reset_rule_before(const struct ztest_unit_test *test,
void *data)
{
ARG_UNUSED(test);
ARG_UNUSED(data);
FFF_FAKES_LIST(RESET_FAKE);
FFF_RESET_HISTORY();
}
ZTEST_RULE(kingler_ccd_reset_rule, kingler_ccd_reset_rule_before, NULL);
static void kingler_ccd_before(void *data)
{
struct kingler_ccd_fixture *f = (struct kingler_ccd_fixture *)data;
f->default_ccd_lvl =
gpio_pin_get_dt(GPIO_DT_FROM_NODELABEL(gpio_ccd_mode_odl));
f->default_aux_path_lvl =
gpio_pin_get_dt(GPIO_DT_FROM_NODELABEL(dp_aux_path_sel));
zassert_ok(gpio_enable_dt_interrupt(
GPIO_INT_FROM_NODELABEL(int_ccd_mode_odl)));
}
static void kingler_ccd_after(void *data)
{
struct kingler_ccd_fixture *f = (struct kingler_ccd_fixture *)data;
zassert_ok(gpio_disable_dt_interrupt(
GPIO_INT_FROM_NODELABEL(int_ccd_mode_odl)));
zassert_ok(gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_ccd_mode_odl),
f->default_ccd_lvl));
zassert_ok(gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(dp_aux_path_sel),
f->default_aux_path_lvl));
}
ZTEST_SUITE(kingler_ccd, NULL, ccd_setup, kingler_ccd_before, kingler_ccd_after,
NULL);
ZTEST_F(kingler_ccd, test_dp_aux_path)
{
const struct device *ccd_mode_odl_gpio = DEVICE_DT_GET(
DT_GPIO_CTLR(DT_NODELABEL(gpio_ccd_mode_odl), gpios));
const gpio_port_pins_t ccd_mode_odl_pin =
DT_GPIO_PIN(DT_NODELABEL(gpio_ccd_mode_odl), gpios);
const struct device *dp_aux_gpio = DEVICE_DT_GET(
DT_GPIO_CTLR(DT_NODELABEL(dp_aux_path_sel), gpios));
const gpio_port_pins_t dp_aux_pin =
DT_GPIO_PIN(DT_NODELABEL(dp_aux_path_sel), gpios);
/* reset CCD mode and mux AUX path to CCD port by default */
zassert_ok(gpio_emul_input_set(ccd_mode_odl_gpio, ccd_mode_odl_pin, 1),
NULL);
zassert_ok(gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(dp_aux_path_sel), 0),
NULL);
zassert_equal(0, gpio_emul_output_get(dp_aux_gpio, dp_aux_pin), NULL);
/* CCD asserts and trigger ccd_interrupt */
zassert_ok(gpio_emul_input_set(ccd_mode_odl_gpio, ccd_mode_odl_pin, 0),
NULL);
k_sleep(K_MSEC(100));
zassert_equal(1, typec_set_sbu_fake.call_count, NULL);
/* CCD triggered, aux path has to be muxed to port 1 */
zassert_equal(1, gpio_emul_output_get(dp_aux_gpio, dp_aux_pin), NULL);
/* CCD deasserts */
zassert_ok(gpio_emul_input_set(ccd_mode_odl_gpio, ccd_mode_odl_pin, 1),
NULL);
k_sleep(K_MSEC(100));
/* do not touch dp aux path when CCD deasserted */
zassert_equal(1, gpio_emul_output_get(dp_aux_gpio, dp_aux_pin), NULL);
zassert_equal(1, typec_set_sbu_fake.call_count, NULL);
}
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