1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2018, STMicroelectronics
4 */
5
6 #include <log.h>
7 #include <serial.h>
8 #include <dm.h>
9 #include <asm/serial.h>
10 #include <dm/test.h>
11 #include <test/test.h>
12 #include <test/ut.h>
13
14 static const char test_message[] =
15 "This is a test message\n"
16 "consisting of multiple lines\n";
17
dm_test_serial(struct unit_test_state * uts)18 static int dm_test_serial(struct unit_test_state *uts)
19 {
20 int i;
21 struct serial_device_info info_serial = {0};
22 struct udevice *dev_serial;
23 size_t start, putc_written;
24
25 uint value_serial;
26
27 ut_assertok(uclass_get_device_by_name(UCLASS_SERIAL, "serial",
28 &dev_serial));
29
30 ut_assertok(serial_tstc());
31 ut_asserteq(115200, fetch_baud_from_dtb());
32 /*
33 * test with default config which is the only one supported by
34 * sandbox_serial driver
35 */
36 ut_assertok(serial_setconfig(dev_serial, SERIAL_DEFAULT_CONFIG));
37 ut_assertok(serial_getconfig(dev_serial, &value_serial));
38 ut_assert(value_serial == SERIAL_DEFAULT_CONFIG);
39 ut_assertok(serial_getinfo(dev_serial, &info_serial));
40 ut_assert(info_serial.type == SERIAL_CHIP_UNKNOWN);
41 ut_assert(info_serial.addr == SERIAL_DEFAULT_ADDRESS);
42 ut_assert(info_serial.clock == SERIAL_DEFAULT_CLOCK);
43 /*
44 * test with a parameter which is NULL pointer
45 */
46 ut_asserteq(-EINVAL, serial_getconfig(dev_serial, NULL));
47 ut_asserteq(-EINVAL, serial_getinfo(dev_serial, NULL));
48 /*
49 * test with a serial config which is not supported by
50 * sandbox_serial driver: test with wrong parity
51 */
52 ut_asserteq(-ENOTSUPP,
53 serial_setconfig(dev_serial,
54 SERIAL_CONFIG(SERIAL_PAR_ODD,
55 SERIAL_8_BITS,
56 SERIAL_ONE_STOP)));
57 /*
58 * test with a serial config which is not supported by
59 * sandbox_serial driver: test with wrong bits number
60 */
61 ut_asserteq(-ENOTSUPP,
62 serial_setconfig(dev_serial,
63 SERIAL_CONFIG(SERIAL_PAR_NONE,
64 SERIAL_6_BITS,
65 SERIAL_ONE_STOP)));
66
67 /*
68 * test with a serial config which is not supported by
69 * sandbox_serial driver: test with wrong stop bits number
70 */
71 ut_asserteq(-ENOTSUPP,
72 serial_setconfig(dev_serial,
73 SERIAL_CONFIG(SERIAL_PAR_NONE,
74 SERIAL_8_BITS,
75 SERIAL_TWO_STOP)));
76
77 /* Verify that putc and puts print the same number of characters */
78 sandbox_serial_endisable(false);
79 start = sandbox_serial_written();
80 for (i = 0; i < sizeof(test_message) - 1; i++)
81 serial_putc(test_message[i]);
82 putc_written = sandbox_serial_written();
83 serial_puts(test_message);
84 sandbox_serial_endisable(true);
85 ut_asserteq(putc_written - start,
86 sandbox_serial_written() - putc_written);
87
88 return 0;
89 }
90 DM_TEST(dm_test_serial, UTF_SCAN_FDT);
91