led.c 4.2 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (C) 2015 Google, Inc
  4. */
  5. #include <common.h>
  6. #include <dm.h>
  7. #include <led.h>
  8. #include <asm/gpio.h>
  9. #include <dm/test.h>
  10. #include <test/ut.h>
  11. /* Base test of the led uclass */
  12. static int dm_test_led_base(struct unit_test_state *uts)
  13. {
  14. struct udevice *dev;
  15. /* Get the top-level device */
  16. ut_assertok(uclass_get_device(UCLASS_LED, 0, &dev));
  17. ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev));
  18. ut_assertok(uclass_get_device(UCLASS_LED, 2, &dev));
  19. ut_assertok(uclass_get_device(UCLASS_LED, 3, &dev));
  20. ut_assertok(uclass_get_device(UCLASS_LED, 4, &dev));
  21. ut_asserteq(-ENODEV, uclass_get_device(UCLASS_LED, 5, &dev));
  22. return 0;
  23. }
  24. DM_TEST(dm_test_led_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  25. /* Test of the LED 'default-state' device tree property */
  26. static int dm_test_led_default_state(struct unit_test_state *uts)
  27. {
  28. struct udevice *dev;
  29. /* configure the default state (auto-probe) */
  30. led_default_state();
  31. /* Check that we handle the default-state property correctly. */
  32. ut_assertok(led_get_by_label("sandbox:default_on", &dev));
  33. ut_asserteq(LEDST_ON, led_get_state(dev));
  34. ut_assertok(led_get_by_label("sandbox:default_off", &dev));
  35. ut_asserteq(LEDST_OFF, led_get_state(dev));
  36. return 0;
  37. }
  38. DM_TEST(dm_test_led_default_state, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  39. /* Test of the led uclass using the led_gpio driver */
  40. static int dm_test_led_gpio(struct unit_test_state *uts)
  41. {
  42. const int offset = 1;
  43. struct udevice *dev, *gpio;
  44. /*
  45. * Check that we can manipulate an LED. LED 1 is connected to GPIO
  46. * bank gpio_a, offset 1.
  47. */
  48. ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev));
  49. ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio));
  50. ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
  51. ut_assertok(led_set_state(dev, LEDST_ON));
  52. ut_asserteq(1, sandbox_gpio_get_value(gpio, offset));
  53. ut_asserteq(LEDST_ON, led_get_state(dev));
  54. ut_assertok(led_set_state(dev, LEDST_OFF));
  55. ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
  56. ut_asserteq(LEDST_OFF, led_get_state(dev));
  57. return 0;
  58. }
  59. DM_TEST(dm_test_led_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  60. /* Test that we can toggle LEDs */
  61. static int dm_test_led_toggle(struct unit_test_state *uts)
  62. {
  63. const int offset = 1;
  64. struct udevice *dev, *gpio;
  65. /*
  66. * Check that we can manipulate an LED. LED 1 is connected to GPIO
  67. * bank gpio_a, offset 1.
  68. */
  69. ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev));
  70. ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio));
  71. ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
  72. ut_assertok(led_set_state(dev, LEDST_TOGGLE));
  73. ut_asserteq(1, sandbox_gpio_get_value(gpio, offset));
  74. ut_asserteq(LEDST_ON, led_get_state(dev));
  75. ut_assertok(led_set_state(dev, LEDST_TOGGLE));
  76. ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
  77. ut_asserteq(LEDST_OFF, led_get_state(dev));
  78. return 0;
  79. }
  80. DM_TEST(dm_test_led_toggle, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  81. /* Test obtaining an LED by label */
  82. static int dm_test_led_label(struct unit_test_state *uts)
  83. {
  84. struct udevice *dev, *cmp;
  85. ut_assertok(led_get_by_label("sandbox:red", &dev));
  86. ut_asserteq(1, device_active(dev));
  87. ut_assertok(uclass_get_device(UCLASS_LED, 1, &cmp));
  88. ut_asserteq_ptr(dev, cmp);
  89. ut_assertok(led_get_by_label("sandbox:green", &dev));
  90. ut_asserteq(1, device_active(dev));
  91. ut_assertok(uclass_get_device(UCLASS_LED, 2, &cmp));
  92. ut_asserteq_ptr(dev, cmp);
  93. ut_asserteq(-ENODEV, led_get_by_label("sandbox:blue", &dev));
  94. return 0;
  95. }
  96. DM_TEST(dm_test_led_label, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  97. /* Test LED blinking */
  98. #ifdef CONFIG_LED_BLINK
  99. static int dm_test_led_blink(struct unit_test_state *uts)
  100. {
  101. const int offset = 1;
  102. struct udevice *dev, *gpio;
  103. /*
  104. * Check that we get an error when trying to blink an LED, since it is
  105. * not supported by the GPIO LED driver.
  106. */
  107. ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev));
  108. ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio));
  109. ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
  110. ut_asserteq(-ENOSYS, led_set_state(dev, LEDST_BLINK));
  111. ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
  112. ut_asserteq(LEDST_OFF, led_get_state(dev));
  113. ut_asserteq(-ENOSYS, led_set_period(dev, 100));
  114. return 0;
  115. }
  116. DM_TEST(dm_test_led_blink, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  117. #endif