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 ut_asserteq(LEDST_ON, led_get_state(dev)); 47 48 ut_assertok(led_set_state(dev, LEDST_OFF)); 49 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset)); 50 ut_asserteq(LEDST_OFF, led_get_state(dev)); 51 52 return 0; 53 } 54 DM_TEST(dm_test_led_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 55 56 /* Test that we can toggle LEDs */ 57 static int dm_test_led_toggle(struct unit_test_state *uts) 58 { 59 const int offset = 1; 60 struct udevice *dev, *gpio; 61 62 /* 63 * Check that we can manipulate an LED. LED 1 is connected to GPIO 64 * bank gpio_a, offset 1. 65 */ 66 ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev)); 67 ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio)); 68 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset)); 69 ut_assertok(led_set_state(dev, LEDST_TOGGLE)); 70 ut_asserteq(1, sandbox_gpio_get_value(gpio, offset)); 71 ut_asserteq(LEDST_ON, led_get_state(dev)); 72 73 ut_assertok(led_set_state(dev, LEDST_TOGGLE)); 74 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset)); 75 ut_asserteq(LEDST_OFF, led_get_state(dev)); 76 77 return 0; 78 } 79 DM_TEST(dm_test_led_toggle, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 80 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 86 ut_assertok(led_get_by_label("sandbox:red", &dev)); 87 ut_asserteq(1, device_active(dev)); 88 ut_assertok(uclass_get_device(UCLASS_LED, 1, &cmp)); 89 ut_asserteq_ptr(dev, cmp); 90 91 ut_assertok(led_get_by_label("sandbox:green", &dev)); 92 ut_asserteq(1, device_active(dev)); 93 ut_assertok(uclass_get_device(UCLASS_LED, 2, &cmp)); 94 ut_asserteq_ptr(dev, cmp); 95 96 ut_asserteq(-ENODEV, led_get_by_label("sandbox:blue", &dev)); 97 98 return 0; 99 } 100 DM_TEST(dm_test_led_label, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 101 102 /* Test LED blinking */ 103 #ifdef CONFIG_LED_BLINK 104 static int dm_test_led_blink(struct unit_test_state *uts) 105 { 106 const int offset = 1; 107 struct udevice *dev, *gpio; 108 109 /* 110 * Check that we get an error when trying to blink an LED, since it is 111 * not supported by the GPIO LED driver. 112 */ 113 ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev)); 114 ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio)); 115 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset)); 116 ut_asserteq(-ENOSYS, led_set_state(dev, LEDST_BLINK)); 117 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset)); 118 ut_asserteq(LEDST_OFF, led_get_state(dev)); 119 ut_asserteq(-ENOSYS, led_set_period(dev, 100)); 120 121 return 0; 122 } 123 DM_TEST(dm_test_led_blink, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 124 #endif 125