xref: /openbmc/u-boot/test/dm/led.c (revision c3d89140)
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 	led_set_on(dev, 1);
45 	ut_asserteq(1, sandbox_gpio_get_value(gpio, offset));
46 	led_set_on(dev, 0);
47 	ut_asserteq(0, sandbox_gpio_get_value(gpio, offset));
48 
49 	return 0;
50 }
51 DM_TEST(dm_test_led_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
52 
53 /* Test obtaining an LED by label */
54 static int dm_test_led_label(struct unit_test_state *uts)
55 {
56 	struct udevice *dev, *cmp;
57 
58 	ut_assertok(led_get_by_label("sandbox:red", &dev));
59 	ut_asserteq(1, device_active(dev));
60 	ut_assertok(uclass_get_device(UCLASS_LED, 1, &cmp));
61 	ut_asserteq_ptr(dev, cmp);
62 
63 	ut_assertok(led_get_by_label("sandbox:green", &dev));
64 	ut_asserteq(1, device_active(dev));
65 	ut_assertok(uclass_get_device(UCLASS_LED, 2, &cmp));
66 	ut_asserteq_ptr(dev, cmp);
67 
68 	ut_asserteq(-ENODEV, led_get_by_label("sandbox:blue", &dev));
69 
70 	return 0;
71 }
72 DM_TEST(dm_test_led_label, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
73