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