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(&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(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);