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 <log.h>
   8 #include <serial.h>
   9 #include <dm.h>
  10 #include <dm/test.h>
  11 #include <test/test.h>
  12 #include <test/ut.h>
  13
  14 static int dm_test_serial(struct unit_test_state *uts)
  15 {
  16         struct serial_device_info info_serial = {0};
  17         struct udevice *dev_serial;
  18         uint value_serial;
  19
  20         ut_assertok(uclass_get_device_by_name(UCLASS_SERIAL, "serial",
  21                                               &dev_serial));
  22
  23         ut_assertok(serial_tstc());
  24         /*
  25          * test with default config which is the only one supported by
  26          * sandbox_serial driver
  27          */
  28         ut_assertok(serial_setconfig(dev_serial, SERIAL_DEFAULT_CONFIG));
  29         ut_assertok(serial_getconfig(dev_serial, &value_serial));
  30         ut_assert(value_serial == SERIAL_DEFAULT_CONFIG);
  31         ut_assertok(serial_getinfo(dev_serial, &info_serial));
  32         ut_assert(info_serial.type == SERIAL_CHIP_UNKNOWN);
  33         ut_assert(info_serial.addr == SERIAL_DEFAULT_ADDRESS);
  34         ut_assert(info_serial.clock == SERIAL_DEFAULT_CLOCK);
  35         /*
  36          * test with a parameter which is NULL pointer
  37          */
  38         ut_asserteq(-EINVAL, serial_getconfig(dev_serial, NULL));
  39         ut_asserteq(-EINVAL, serial_getinfo(dev_serial, NULL));
  40         /*
  41          * test with a serial config which is not supported by
  42          * sandbox_serial driver: test with wrong parity
  43          */
  44         ut_asserteq(-ENOTSUPP,
  45                     serial_setconfig(dev_serial,
  46                                      SERIAL_CONFIG(SERIAL_PAR_ODD,
  47                                                    SERIAL_8_BITS,
  48                                                    SERIAL_ONE_STOP)));
  49         /*
  50          * test with a serial config which is not supported by
  51          * sandbox_serial driver: test with wrong bits number
  52          */
  53         ut_asserteq(-ENOTSUPP,
  54                     serial_setconfig(dev_serial,
  55                                      SERIAL_CONFIG(SERIAL_PAR_NONE,
  56                                                    SERIAL_6_BITS,
  57                                                    SERIAL_ONE_STOP)));
  58
  59         /*
  60          * test with a serial config which is not supported by
  61          * sandbox_serial driver: test with wrong stop bits number
  62          */
  63         ut_asserteq(-ENOTSUPP,
  64                     serial_setconfig(dev_serial,
  65                                      SERIAL_CONFIG(SERIAL_PAR_NONE,
  66                                                    SERIAL_8_BITS,
  67                                                    SERIAL_TWO_STOP)));
  68
  69         return 0;
  70 }
  71
  72 DM_TEST(dm_test_serial, UT_TESTF_SCAN_FDT);