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/* Copyright 2020 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "common.h"
#include "i2c.h"
#include "i2c/i2c.h"
#include <zephyr/devicetree.h>
#include <zephyr/ztest.h>
/* Unused: required for shimming i2c. */
void watchdog_reload(void)
{
}
ZTEST_USER(i2c, test_i2c_port_count)
{
zassert_equal(I2C_PORT_COUNT, 2,
"I2C_PORT_COUNT expected to be 2 but was %d",
I2C_PORT_COUNT);
}
ZTEST_USER(i2c, test_i2c_lock_invalid_port)
{
i2c_lock(-1, 1);
zassert_equal(i2c_port_is_locked(-1), 0,
"Negative I2C port locked, but should have failed");
i2c_lock(INT_MAX, 1);
zassert_equal(i2c_port_is_locked(INT_MAX), 0,
"MAX_INT I2C port locked, but should have failed");
}
ZTEST_USER(i2c, test_i2c_lock)
{
i2c_lock(I2C_PORT_ACCEL, 1);
zassert_equal(i2c_port_is_locked(I2C_PORT_EEPROM), 1,
"I2C_PORT_EEPROM not locked");
zassert_equal(i2c_port_is_locked(I2C_PORT_ACCEL), 1,
"I2C_PORT_ACCEL not locked");
/* Unlock different enum pointing the same i2c device */
i2c_lock(I2C_PORT_EEPROM, 0);
zassert_equal(i2c_port_is_locked(I2C_PORT_EEPROM), 0,
"I2C_PORT_EEPROM not locked");
zassert_equal(i2c_port_is_locked(I2C_PORT_ACCEL), 0,
"I2C_PORT_ACCEL not locked");
i2c_lock(I2C_PORT_EEPROM, 1);
/* Verify different i2c device */
zassert_equal(i2c_port_is_locked(I2C_PORT_USB_C1), 0,
"I2C_PORT_USB_C1 locked");
i2c_lock(I2C_PORT_USB_C1, 1);
/* Make sure i2c device is locked*/
zassert_equal(i2c_port_is_locked(I2C_PORT_USB_C1), 1,
"I2C_PORT_USB_C1 locked");
/* Another i2c device is still locked */
i2c_lock(I2C_PORT_USB_C1, 0);
zassert_equal(i2c_port_is_locked(I2C_PORT_EEPROM), 1,
"I2C_PORT_EEPROM not locked");
i2c_lock(I2C_PORT_EEPROM, 0);
}
ZTEST_SUITE(i2c, NULL, NULL, NULL, NULL, NULL);
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