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/* 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 <device.h>
#include <devicetree.h>
#include <emul.h>
#include <ztest.h>
#include "driver/ppc/sn5s330.h"
#include "driver/ppc/sn5s330_public.h"
#include "emul/emul_common_i2c.h"
#include "emul/emul_sn5s330.h"
#include "usbc_ppc.h"
/** This must match the index of the sn5s330 in ppc_chips[] */
#define SN5S330_PORT 0
#define EMUL emul_get_binding(DT_LABEL(DT_NODELABEL(sn5s330_emul)))
/*
* TODO(b/203364783): Exclude other threads from interacting with the emulator
* to avoid test flakiness
*/
static int fail_until_write_func(struct i2c_emul *emul, int reg, uint8_t val,
int bytes, void *data)
{
uint32_t *count = data;
if (*count != 0) {
*count -= 1;
return -EIO;
}
return 1;
}
static void test_fail_once_func_set1(void)
{
const struct emul *emul = EMUL;
struct i2c_emul *i2c_emul = sn5s330_emul_to_i2c_emul(emul);
uint32_t count = 1;
uint32_t func_set1_value;
i2c_common_emul_set_write_func(i2c_emul, fail_until_write_func, &count);
zassert_ok(sn5s330_drv.init(SN5S330_PORT), NULL);
zassert_equal(count, 0, NULL);
zassert_ok(sn5s330_emul_peek_reg(emul, SN5S330_FUNC_SET1,
&func_set1_value),
NULL);
zassert_true((func_set1_value & SN5S330_ILIM_1_62) != 0, NULL);
i2c_common_emul_set_write_func(i2c_emul, NULL, NULL);
}
static void reset_sn5s330_state(void)
{
sn5s330_emul_reset(EMUL);
}
void test_suite_ppc_sn5s330(void)
{
ztest_test_suite(ppc_sn5s330,
ztest_unit_test_setup_teardown(
test_fail_once_func_set1, reset_sn5s330_state,
reset_sn5s330_state));
ztest_run_test_suite(ppc_sn5s330);
}
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