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[oweals/u-boot.git] / test / dm / serial.c
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (c) 2018, STMicroelectronics
4  */
5
6 #include <common.h>
7 #include <serial.h>
8 #include <dm.h>
9 #include <dm/test.h>
10 #include <test/ut.h>
11
12 static int dm_test_serial(struct unit_test_state *uts)
13 {
14         struct serial_device_info info_serial = {0};
15         struct udevice *dev_serial;
16         uint value_serial;
17
18         ut_assertok(uclass_get_device_by_name(UCLASS_SERIAL, "serial",
19                                               &dev_serial));
20
21         ut_assertok(serial_tstc());
22         /*
23          * test with default config which is the only one supported by
24          * sandbox_serial driver
25          */
26         ut_assertok(serial_setconfig(dev_serial, SERIAL_DEFAULT_CONFIG));
27         ut_assertok(serial_getconfig(dev_serial, &value_serial));
28         ut_assert(value_serial == SERIAL_DEFAULT_CONFIG);
29         ut_assertok(serial_getinfo(dev_serial, &info_serial));
30         ut_assert(info_serial.type == SERIAL_CHIP_UNKNOWN);
31         ut_assert(info_serial.addr == SERIAL_DEFAULT_ADDRESS);
32         /*
33          * test with a parameter which is NULL pointer
34          */
35         ut_asserteq(-EINVAL, serial_getconfig(dev_serial, NULL));
36         ut_asserteq(-EINVAL, serial_getinfo(dev_serial, NULL));
37         /*
38          * test with a serial config which is not supported by
39          * sandbox_serial driver: test with wrong parity
40          */
41         ut_asserteq(-ENOTSUPP,
42                     serial_setconfig(dev_serial,
43                                      SERIAL_CONFIG(SERIAL_PAR_ODD,
44                                                    SERIAL_8_BITS,
45                                                    SERIAL_ONE_STOP)));
46         /*
47          * test with a serial config which is not supported by
48          * sandbox_serial driver: test with wrong bits number
49          */
50         ut_asserteq(-ENOTSUPP,
51                     serial_setconfig(dev_serial,
52                                      SERIAL_CONFIG(SERIAL_PAR_NONE,
53                                                    SERIAL_6_BITS,
54                                                    SERIAL_ONE_STOP)));
55
56         /*
57          * test with a serial config which is not supported by
58          * sandbox_serial driver: test with wrong stop bits number
59          */
60         ut_asserteq(-ENOTSUPP,
61                     serial_setconfig(dev_serial,
62                                      SERIAL_CONFIG(SERIAL_PAR_NONE,
63                                                    SERIAL_8_BITS,
64                                                    SERIAL_TWO_STOP)));
65
66         return 0;
67 }
68
69 DM_TEST(dm_test_serial, DM_TESTF_SCAN_FDT);