1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2015 Google, Inc 4 */ 5 6 #include <common.h> 7 #include <dm.h> 8 #include <led.h> 9 #include <asm/gpio.h> 10 #include <dm/test.h> 11 #include <test/ut.h> 12 13 /* Base test of the led uclass */ 14 static int dm_test_led_base(struct unit_test_state *uts) 15 { 16 struct udevice *dev; 17 18 /* Get the top-level device */ 19 ut_assertok(uclass_get_device(UCLASS_LED, 0, &dev)); 20 ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev)); 21 ut_assertok(uclass_get_device(UCLASS_LED, 2, &dev)); 22 ut_assertok(uclass_get_device(UCLASS_LED, 3, &dev)); 23 ut_assertok(uclass_get_device(UCLASS_LED, 4, &dev)); 24 ut_asserteq(-ENODEV, uclass_get_device(UCLASS_LED, 5, &dev)); 25 26 return 0; 27 } 28 DM_TEST(dm_test_led_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 29 30 /* Test of the LED 'default-state' device tree property */ 31 static int dm_test_led_default_state(struct unit_test_state *uts) 32 { 33 struct udevice *dev; 34 35 /* configure the default state (auto-probe) */ 36 led_default_state(); 37 38 /* Check that we handle the default-state property correctly. */ 39 ut_assertok(led_get_by_label("sandbox:default_on", &dev)); 40 ut_asserteq(LEDST_ON, led_get_state(dev)); 41 42 ut_assertok(led_get_by_label("sandbox:default_off", &dev)); 43 ut_asserteq(LEDST_OFF, led_get_state(dev)); 44 45 return 0; 46 } 47 DM_TEST(dm_test_led_default_state, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 48 49 /* Test of the led uclass using the led_gpio driver */ 50 static int dm_test_led_gpio(struct unit_test_state *uts) 51 { 52 const int offset = 1; 53 struct udevice *dev, *gpio; 54 55 /* 56 * Check that we can manipulate an LED. LED 1 is connected to GPIO 57 * bank gpio_a, offset 1. 58 */ 59 ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev)); 60 ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio)); 61 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset)); 62 ut_assertok(led_set_state(dev, LEDST_ON)); 63 ut_asserteq(1, sandbox_gpio_get_value(gpio, offset)); 64 ut_asserteq(LEDST_ON, led_get_state(dev)); 65 66 ut_assertok(led_set_state(dev, LEDST_OFF)); 67 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset)); 68 ut_asserteq(LEDST_OFF, led_get_state(dev)); 69 70 return 0; 71 } 72 DM_TEST(dm_test_led_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 73 74 /* Test that we can toggle LEDs */ 75 static int dm_test_led_toggle(struct unit_test_state *uts) 76 { 77 const int offset = 1; 78 struct udevice *dev, *gpio; 79 80 /* 81 * Check that we can manipulate an LED. LED 1 is connected to GPIO 82 * bank gpio_a, offset 1. 83 */ 84 ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev)); 85 ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio)); 86 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset)); 87 ut_assertok(led_set_state(dev, LEDST_TOGGLE)); 88 ut_asserteq(1, sandbox_gpio_get_value(gpio, offset)); 89 ut_asserteq(LEDST_ON, led_get_state(dev)); 90 91 ut_assertok(led_set_state(dev, LEDST_TOGGLE)); 92 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset)); 93 ut_asserteq(LEDST_OFF, led_get_state(dev)); 94 95 return 0; 96 } 97 DM_TEST(dm_test_led_toggle, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 98 99 /* Test obtaining an LED by label */ 100 static int dm_test_led_label(struct unit_test_state *uts) 101 { 102 struct udevice *dev, *cmp; 103 104 ut_assertok(led_get_by_label("sandbox:red", &dev)); 105 ut_asserteq(1, device_active(dev)); 106 ut_assertok(uclass_get_device(UCLASS_LED, 1, &cmp)); 107 ut_asserteq_ptr(dev, cmp); 108 109 ut_assertok(led_get_by_label("sandbox:green", &dev)); 110 ut_asserteq(1, device_active(dev)); 111 ut_assertok(uclass_get_device(UCLASS_LED, 2, &cmp)); 112 ut_asserteq_ptr(dev, cmp); 113 114 ut_asserteq(-ENODEV, led_get_by_label("sandbox:blue", &dev)); 115 116 return 0; 117 } 118 DM_TEST(dm_test_led_label, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 119 120 /* Test LED blinking */ 121 #ifdef CONFIG_LED_BLINK 122 static int dm_test_led_blink(struct unit_test_state *uts) 123 { 124 const int offset = 1; 125 struct udevice *dev, *gpio; 126 127 /* 128 * Check that we get an error when trying to blink an LED, since it is 129 * not supported by the GPIO LED driver. 130 */ 131 ut_assertok(uclass_get_device(UCLASS_LED, 1, &dev)); 132 ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio)); 133 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset)); 134 ut_asserteq(-ENOSYS, led_set_state(dev, LEDST_BLINK)); 135 ut_asserteq(0, sandbox_gpio_get_value(gpio, offset)); 136 ut_asserteq(LEDST_OFF, led_get_state(dev)); 137 ut_asserteq(-ENOSYS, led_set_period(dev, 100)); 138 139 return 0; 140 } 141 DM_TEST(dm_test_led_blink, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 142 #endif 143