1 /*
2 * Copyright 2024 Google LLC
3 * SPDX-License-Identifier: Apache-2.0
4 */
5
6 #include <zephyr/device.h>
7 #include <zephyr/drivers/bbram.h>
8 #include <zephyr/drivers/emul.h>
9 #include <zephyr/drivers/emul_bbram.h>
10 #include <zephyr/ztest.h>
11
12 #include "fixture.h"
13
run_test_write_invalid_size(const struct device * dev,const struct emul * emulator)14 static void run_test_write_invalid_size(const struct device *dev, const struct emul *emulator)
15 {
16 uint8_t data = 0;
17 size_t bbram_size = 0;
18 int rc;
19
20 ARG_UNUSED(emulator);
21
22 rc = bbram_write(dev, 0, 0, &data);
23 zassert_equal(-EINVAL, rc, "got %d", rc);
24
25 rc = bbram_get_size(dev, &bbram_size);
26 zassert_ok(rc, "got %d", rc);
27
28 rc = bbram_write(dev, 0, bbram_size + 1, &data);
29 zassert_equal(-EINVAL, rc, "got %d", rc);
30 }
31
run_test_write_bytes(const struct device * dev,const struct emul * emulator)32 static void run_test_write_bytes(const struct device *dev, const struct emul *emulator)
33 {
34 uint8_t data = 0;
35 uint8_t expected_data = 0;
36 size_t bbram_size = 0;
37 int rc;
38
39 rc = bbram_get_size(dev, &bbram_size);
40 zassert_ok(rc, "got %d", rc);
41
42 for (size_t i = 0; i < bbram_size; ++i) {
43 expected_data = i % BIT(8);
44 rc = bbram_write(dev, i, 1, &expected_data);
45 zassert_ok(rc, "Failed to set expected data at offset %zu", i);
46
47 rc = emul_bbram_backend_get_data(emulator, i, 1, &data);
48 zassert_ok(rc, "Failed to get byte at offset %zu", i);
49 zassert_equal(expected_data, data, "Expected %u, but got %u", expected_data, data);
50 }
51 }
52
53 #define DECLARE_ZTEST_PER_DEVICE(inst) \
54 BBRAM_TEST_IMPL(write_invalid_size, inst) \
55 BBRAM_TEST_IMPL(write_bytes, inst)
56
57 BBRAM_FOR_EACH(DECLARE_ZTEST_PER_DEVICE)
58
