button.c 3.7 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (C) 2020 Philippe Reynes <philippe.reynes@softathome.com>
  4. *
  5. * Based on led.c
  6. */
  7. #include <common.h>
  8. #include <dm.h>
  9. #include <adc.h>
  10. #include <button.h>
  11. #include <power/regulator.h>
  12. #include <power/sandbox_pmic.h>
  13. #include <asm/gpio.h>
  14. #include <dm/test.h>
  15. #include <test/ut.h>
  16. /* Base test of the button uclass */
  17. static int dm_test_button_base(struct unit_test_state *uts)
  18. {
  19. struct udevice *dev;
  20. /* Get the top-level gpio buttons device */
  21. ut_assertok(uclass_get_device(UCLASS_BUTTON, 0, &dev));
  22. /* Get the 2 gpio buttons */
  23. ut_assertok(uclass_get_device(UCLASS_BUTTON, 1, &dev));
  24. ut_assertok(uclass_get_device(UCLASS_BUTTON, 2, &dev));
  25. /* Get the top-level adc buttons device */
  26. ut_assertok(uclass_get_device(UCLASS_BUTTON, 3, &dev));
  27. /* Get the 3 adc buttons */
  28. ut_assertok(uclass_get_device(UCLASS_BUTTON, 4, &dev));
  29. ut_assertok(uclass_get_device(UCLASS_BUTTON, 5, &dev));
  30. ut_assertok(uclass_get_device(UCLASS_BUTTON, 6, &dev));
  31. ut_asserteq(-ENODEV, uclass_get_device(UCLASS_BUTTON, 7, &dev));
  32. return 0;
  33. }
  34. DM_TEST(dm_test_button_base, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  35. /* Test of the button uclass using the button_gpio driver */
  36. static int dm_test_button_gpio(struct unit_test_state *uts)
  37. {
  38. const int offset = 3;
  39. struct udevice *dev, *gpio;
  40. /*
  41. * Check that we can manipulate an BUTTON. BUTTON 1 is connected to GPIO
  42. * bank gpio_a, offset 3.
  43. */
  44. ut_assertok(uclass_get_device(UCLASS_BUTTON, 1, &dev));
  45. ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio));
  46. ut_asserteq(0, sandbox_gpio_set_value(gpio, offset, 0));
  47. ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
  48. ut_asserteq(BUTTON_OFF, button_get_state(dev));
  49. ut_asserteq(0, sandbox_gpio_set_value(gpio, offset, 1));
  50. ut_asserteq(1, sandbox_gpio_get_value(gpio, offset));
  51. ut_asserteq(BUTTON_ON, button_get_state(dev));
  52. return 0;
  53. }
  54. DM_TEST(dm_test_button_gpio, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  55. /* Test obtaining an BUTTON by label */
  56. static int dm_test_button_label(struct unit_test_state *uts)
  57. {
  58. struct udevice *dev, *cmp;
  59. ut_assertok(button_get_by_label("button1", &dev));
  60. ut_asserteq(1, device_active(dev));
  61. ut_assertok(uclass_get_device(UCLASS_BUTTON, 1, &cmp));
  62. ut_asserteq_ptr(dev, cmp);
  63. ut_assertok(button_get_by_label("button2", &dev));
  64. ut_asserteq(1, device_active(dev));
  65. ut_assertok(uclass_get_device(UCLASS_BUTTON, 2, &cmp));
  66. ut_asserteq_ptr(dev, cmp);
  67. ut_asserteq(-ENODEV, button_get_by_label("nobutton", &dev));
  68. return 0;
  69. }
  70. DM_TEST(dm_test_button_label, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  71. /* Test adc-keys driver */
  72. static int dm_test_button_keys_adc(struct unit_test_state *uts)
  73. {
  74. struct udevice *supply;
  75. struct udevice *dev;
  76. int uV;
  77. ut_assertok(uclass_get_device_by_name(UCLASS_ADC, "adc@0", &dev));
  78. ut_assertok(regulator_get_by_devname(SANDBOX_BUCK2_DEVNAME, &supply));
  79. ut_assertok(regulator_set_value(supply, SANDBOX_BUCK2_SET_UV));
  80. ut_asserteq(SANDBOX_BUCK2_SET_UV, regulator_get_value(supply));
  81. /* Update ADC plat and get new Vdd value */
  82. ut_assertok(adc_vdd_value(dev, &uV));
  83. ut_asserteq(SANDBOX_BUCK2_SET_UV, uV);
  84. /*
  85. * sandbox-adc returns constant value on channel 3, is used by adc-keys:
  86. * SANDBOX_ADC_CHANNEL3_DATA * SANDBOX_BUCK2_SET_UV / SANDBOX_ADC_DATA_MASK =
  87. * 0x3000 * 3300000 / 0xffff = 618759uV
  88. * This means that button3 and button4 are released and button5
  89. * is pressed.
  90. */
  91. ut_assertok(button_get_by_label("button3", &dev));
  92. ut_asserteq(BUTTON_OFF, button_get_state(dev));
  93. ut_assertok(button_get_by_label("button4", &dev));
  94. ut_asserteq(BUTTON_OFF, button_get_state(dev));
  95. ut_assertok(button_get_by_label("button5", &dev));
  96. ut_asserteq(BUTTON_ON, button_get_state(dev));
  97. return 0;
  98. }
  99. DM_TEST(dm_test_button_keys_adc, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);