test/dm/led.c

   1 /*
   2  * Copyright (C) 2015 Google, Inc
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <led.h>
  10 #include <asm/gpio.h>
  11 #include <dm/test.h>
  12 #include <test/ut.h>
  13
  14 DECLARE_GLOBAL_DATA_PTR;
  15
  16 /* Base test of the led uclass */
  17 static int dm_test_led_base(struct unit_test_state *uts)
  18 {
  19         struct udevice *dev;
  20
  21         /* Get the top-level device */
  22         ut_assertok(uclass_get_device(UCLASS_LED, 0, &dev));
  23         ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev));
  24         ut_assertok(uclass_get_device(UCLASS_LED, 2, &dev));
  25         ut_asserteq(-ENODEV, uclass_get_device(UCLASS_LED, 3, &dev));
  26
  27         return 0;
  28 }
  29 DM_TEST(dm_test_led_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  30
  31 /* Test of the led uclass using the led_gpio driver */
  32 static int dm_test_led_gpio(struct unit_test_state *uts)
  33 {
  34         const int offset = 1;
  35         struct udevice *dev, *gpio;
  36
  37         /*
  38          * Check that we can manipulate an LED. LED 1 is connected to GPIO
  39          * bank gpio_a, offset 1.
  40          */
  41         ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev));
  42         ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio));
  43         ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
  44         ut_assertok(led_set_state(dev, LEDST_ON));
  45         ut_asserteq(1, sandbox_gpio_get_value(gpio, offset));
  46
  47         ut_assertok(led_set_state(dev, LEDST_OFF));
  48         ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
  49
  50         return 0;
  51 }
  52 DM_TEST(dm_test_led_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  53
  54 /* Test obtaining an LED by label */
  55 static int dm_test_led_label(struct unit_test_state *uts)
  56 {
  57         struct udevice *dev, *cmp;
  58
  59         ut_assertok(led_get_by_label("sandbox:red", &dev));
  60         ut_asserteq(1, device_active(dev));
  61         ut_assertok(uclass_get_device(UCLASS_LED, 1, &cmp));
  62         ut_asserteq_ptr(dev, cmp);
  63
  64         ut_assertok(led_get_by_label("sandbox:green", &dev));
  65         ut_asserteq(1, device_active(dev));
  66         ut_assertok(uclass_get_device(UCLASS_LED, 2, &cmp));
  67         ut_asserteq_ptr(dev, cmp);
  68
  69         ut_asserteq(-ENODEV, led_get_by_label("sandbox:blue", &dev));
  70
  71         return 0;
  72 }
  73 DM_TEST(dm_test_led_label, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);